# Makefile for the Linux ACPI interpreter
#
-export ACPI_CFLAGS
-
-ACPI_CFLAGS := -Os
-
-ifdef CONFIG_ACPI_DEBUG
- ACPI_CFLAGS += -DACPI_DEBUG_OUTPUT
-endif
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+ccflags-y := -Os
+ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
#
# ACPI Boot-Time Table Parsing
# ACPI Core Subsystem (Interpreter)
#
obj-y += osl.o utils.o reboot.o\
- dispatcher/ events/ executer/ hardware/ \
- namespace/ parser/ resources/ tables/ \
- utilities/
+ acpica/
+
+# sleep related files
+obj-y += wakeup.o
+obj-y += main.o
+obj-$(CONFIG_ACPI_SLEEP) += proc.o
+
#
# ACPI Bus and Device Drivers
processor-objs += processor_perflib.o
endif
-obj-y += sleep/
obj-y += bus.o glue.o
obj-y += scan.o
# Keep EC driver first. Initialization of others depend on it.
--- /dev/null
+#
+# Makefile for ACPICA Core interpreter
+#
+
+ccflags-y := -Os
+ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
+
+obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
+ dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \
+ dsinit.o
+
+obj-y += evevent.o evregion.o evsci.o evxfevnt.o \
+ evmisc.o evrgnini.o evxface.o evxfregn.o \
+ evgpe.o evgpeblk.o
+
+obj-y += exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\
+ exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\
+ excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \
+ exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o
+
+obj-y += hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o
+
+obj-$(ACPI_FUTURE_USAGE) += hwtimer.o
+
+obj-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \
+ nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \
+ nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \
+ nsparse.o nspredef.o
+
+obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
+
+obj-y += psargs.o psparse.o psloop.o pstree.o pswalk.o \
+ psopcode.o psscope.o psutils.o psxface.o
+
+obj-y += rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \
+ rscalc.o rsirq.o rsmemory.o rsutils.o
+
+obj-$(ACPI_FUTURE_USAGE) += rsdump.o
+
+obj-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
+
+obj-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
+ utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
+ utstate.o utmutex.o utobject.o utresrc.o
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dsfield - Dispatcher field routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acparser.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsfield")
+
+/* Local prototypes */
+static acpi_status
+acpi_ds_get_field_names(struct acpi_create_field_info *info,
+ struct acpi_walk_state *walk_state,
+ union acpi_parse_object *arg);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_buffer_field
+ *
+ * PARAMETERS: Op - Current parse op (create_xXField)
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute the create_field operators:
+ * create_bit_field_op,
+ * create_byte_field_op,
+ * create_word_field_op,
+ * create_dword_field_op,
+ * create_qword_field_op,
+ * create_field_op (all of which define a field in a buffer)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_buffer_field(union acpi_parse_object *op,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_parse_object *arg;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *second_desc = NULL;
+ u32 flags;
+
+ ACPI_FUNCTION_TRACE(ds_create_buffer_field);
+
+ /*
+ * Get the name_string argument (name of the new buffer_field)
+ */
+ if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
+
+ /* For create_field, name is the 4th argument */
+
+ arg = acpi_ps_get_arg(op, 3);
+ } else {
+ /* For all other create_xXXField operators, name is the 3rd argument */
+
+ arg = acpi_ps_get_arg(op, 2);
+ }
+
+ if (!arg) {
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ if (walk_state->deferred_node) {
+ node = walk_state->deferred_node;
+ status = AE_OK;
+ } else {
+ /* Execute flag should always be set when this function is entered */
+
+ if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /* Creating new namespace node, should not already exist */
+
+ flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
+ ACPI_NS_ERROR_IF_FOUND;
+
+ /* Mark node temporary if we are executing a method */
+
+ if (walk_state->method_node) {
+ flags |= ACPI_NS_TEMPORARY;
+ }
+
+ /* Enter the name_string into the namespace */
+
+ status =
+ acpi_ns_lookup(walk_state->scope_info,
+ arg->common.value.string, ACPI_TYPE_ANY,
+ ACPI_IMODE_LOAD_PASS1, flags, walk_state,
+ &node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * We could put the returned object (Node) on the object stack for later,
+ * but for now, we will put it in the "op" object that the parser uses,
+ * so we can get it again at the end of this scope.
+ */
+ op->common.node = node;
+
+ /*
+ * If there is no object attached to the node, this node was just created
+ * and we need to create the field object. Otherwise, this was a lookup
+ * of an existing node and we don't want to create the field object again.
+ */
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (obj_desc) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * The Field definition is not fully parsed at this time.
+ * (We must save the address of the AML for the buffer and index operands)
+ */
+
+ /* Create the buffer field object */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER_FIELD);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Remember location in AML stream of the field unit opcode and operands --
+ * since the buffer and index operands must be evaluated.
+ */
+ second_desc = obj_desc->common.next_object;
+ second_desc->extra.aml_start = op->named.data;
+ second_desc->extra.aml_length = op->named.length;
+ obj_desc->buffer_field.node = node;
+
+ /* Attach constructed field descriptors to parent node */
+
+ status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_BUFFER_FIELD);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ cleanup:
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_field_names
+ *
+ * PARAMETERS: Info - create_field info structure
+ * ` walk_state - Current method state
+ * Arg - First parser arg for the field name list
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Process all named fields in a field declaration. Names are
+ * entered into the namespace.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_get_field_names(struct acpi_create_field_info *info,
+ struct acpi_walk_state *walk_state,
+ union acpi_parse_object *arg)
+{
+ acpi_status status;
+ acpi_integer position;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info);
+
+ /* First field starts at bit zero */
+
+ info->field_bit_position = 0;
+
+ /* Process all elements in the field list (of parse nodes) */
+
+ while (arg) {
+ /*
+ * Three types of field elements are handled:
+ * 1) Offset - specifies a bit offset
+ * 2) access_as - changes the access mode
+ * 3) Name - Enters a new named field into the namespace
+ */
+ switch (arg->common.aml_opcode) {
+ case AML_INT_RESERVEDFIELD_OP:
+
+ position = (acpi_integer) info->field_bit_position
+ + (acpi_integer) arg->common.value.size;
+
+ if (position > ACPI_UINT32_MAX) {
+ ACPI_ERROR((AE_INFO,
+ "Bit offset within field too large (> 0xFFFFFFFF)"));
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ info->field_bit_position = (u32) position;
+ break;
+
+ case AML_INT_ACCESSFIELD_OP:
+
+ /*
+ * Get a new access_type and access_attribute -- to be used for all
+ * field units that follow, until field end or another access_as
+ * keyword.
+ *
+ * In field_flags, preserve the flag bits other than the
+ * ACCESS_TYPE bits
+ */
+ info->field_flags = (u8)
+ ((info->
+ field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) |
+ ((u8) ((u32) arg->common.value.integer >> 8)));
+
+ info->attribute = (u8) (arg->common.value.integer);
+ break;
+
+ case AML_INT_NAMEDFIELD_OP:
+
+ /* Lookup the name, it should already exist */
+
+ status = acpi_ns_lookup(walk_state->scope_info,
+ (char *)&arg->named.name,
+ info->field_type,
+ ACPI_IMODE_EXECUTE,
+ ACPI_NS_DONT_OPEN_SCOPE,
+ walk_state, &info->field_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE((char *)&arg->named.name,
+ status);
+ return_ACPI_STATUS(status);
+ } else {
+ arg->common.node = info->field_node;
+ info->field_bit_length = arg->common.value.size;
+
+ /*
+ * If there is no object attached to the node, this node was
+ * just created and we need to create the field object.
+ * Otherwise, this was a lookup of an existing node and we
+ * don't want to create the field object again.
+ */
+ if (!acpi_ns_get_attached_object
+ (info->field_node)) {
+ status = acpi_ex_prep_field_value(info);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ }
+
+ /* Keep track of bit position for the next field */
+
+ position = (acpi_integer) info->field_bit_position
+ + (acpi_integer) arg->common.value.size;
+
+ if (position > ACPI_UINT32_MAX) {
+ ACPI_ERROR((AE_INFO,
+ "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)",
+ ACPI_CAST_PTR(char,
+ &info->field_node->
+ name)));
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ info->field_bit_position += info->field_bit_length;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid opcode in field list: %X",
+ arg->common.aml_opcode));
+ return_ACPI_STATUS(AE_AML_BAD_OPCODE);
+ }
+
+ arg = arg->common.next;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_field
+ *
+ * PARAMETERS: Op - Op containing the Field definition and args
+ * region_node - Object for the containing Operation Region
+ * ` walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new field in the specified operation region
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_field(union acpi_parse_object *op,
+ struct acpi_namespace_node *region_node,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_parse_object *arg;
+ struct acpi_create_field_info info;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_create_field, op);
+
+ /* First arg is the name of the parent op_region (must already exist) */
+
+ arg = op->common.value.arg;
+ if (!region_node) {
+ status =
+ acpi_ns_lookup(walk_state->scope_info,
+ arg->common.value.name, ACPI_TYPE_REGION,
+ ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
+ walk_state, ®ion_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(arg->common.value.name, status);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Second arg is the field flags */
+
+ arg = arg->common.next;
+ info.field_flags = (u8) arg->common.value.integer;
+ info.attribute = 0;
+
+ /* Each remaining arg is a Named Field */
+
+ info.field_type = ACPI_TYPE_LOCAL_REGION_FIELD;
+ info.region_node = region_node;
+
+ status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_field_objects
+ *
+ * PARAMETERS: Op - Op containing the Field definition and args
+ * ` walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: For each "Field Unit" name in the argument list that is
+ * part of the field declaration, enter the name into the
+ * namespace.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_init_field_objects(union acpi_parse_object *op,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_parse_object *arg = NULL;
+ struct acpi_namespace_node *node;
+ u8 type = 0;
+ u32 flags;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op);
+
+ /* Execute flag should always be set when this function is entered */
+
+ if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
+ if (walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP) {
+
+ /* bank_field Op is deferred, just return OK */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /*
+ * Get the field_list argument for this opcode. This is the start of the
+ * list of field elements.
+ */
+ switch (walk_state->opcode) {
+ case AML_FIELD_OP:
+ arg = acpi_ps_get_arg(op, 2);
+ type = ACPI_TYPE_LOCAL_REGION_FIELD;
+ break;
+
+ case AML_BANK_FIELD_OP:
+ arg = acpi_ps_get_arg(op, 4);
+ type = ACPI_TYPE_LOCAL_BANK_FIELD;
+ break;
+
+ case AML_INDEX_FIELD_OP:
+ arg = acpi_ps_get_arg(op, 3);
+ type = ACPI_TYPE_LOCAL_INDEX_FIELD;
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Creating new namespace node(s), should not already exist */
+
+ flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
+ ACPI_NS_ERROR_IF_FOUND;
+
+ /* Mark node(s) temporary if we are executing a method */
+
+ if (walk_state->method_node) {
+ flags |= ACPI_NS_TEMPORARY;
+ }
+
+ /*
+ * Walk the list of entries in the field_list
+ * Note: field_list can be of zero length. In this case, Arg will be NULL.
+ */
+ while (arg) {
+ /*
+ * Ignore OFFSET and ACCESSAS terms here; we are only interested in the
+ * field names in order to enter them into the namespace.
+ */
+ if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
+ status = acpi_ns_lookup(walk_state->scope_info,
+ (char *)&arg->named.name, type,
+ ACPI_IMODE_LOAD_PASS1, flags,
+ walk_state, &node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE((char *)&arg->named.name,
+ status);
+ if (status != AE_ALREADY_EXISTS) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Name already exists, just ignore this error */
+
+ status = AE_OK;
+ }
+
+ arg->common.node = node;
+ }
+
+ /* Get the next field element in the list */
+
+ arg = arg->common.next;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_bank_field
+ *
+ * PARAMETERS: Op - Op containing the Field definition and args
+ * region_node - Object for the containing Operation Region
+ * walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new bank field in the specified operation region
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_bank_field(union acpi_parse_object *op,
+ struct acpi_namespace_node *region_node,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_parse_object *arg;
+ struct acpi_create_field_info info;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op);
+
+ /* First arg is the name of the parent op_region (must already exist) */
+
+ arg = op->common.value.arg;
+ if (!region_node) {
+ status =
+ acpi_ns_lookup(walk_state->scope_info,
+ arg->common.value.name, ACPI_TYPE_REGION,
+ ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
+ walk_state, ®ion_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(arg->common.value.name, status);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Second arg is the Bank Register (Field) (must already exist) */
+
+ arg = arg->common.next;
+ status =
+ acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
+ ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT, walk_state,
+ &info.register_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Third arg is the bank_value
+ * This arg is a term_arg, not a constant
+ * It will be evaluated later, by acpi_ds_eval_bank_field_operands
+ */
+ arg = arg->common.next;
+
+ /* Fourth arg is the field flags */
+
+ arg = arg->common.next;
+ info.field_flags = (u8) arg->common.value.integer;
+
+ /* Each remaining arg is a Named Field */
+
+ info.field_type = ACPI_TYPE_LOCAL_BANK_FIELD;
+ info.region_node = region_node;
+
+ /*
+ * Use Info.data_register_node to store bank_field Op
+ * It's safe because data_register_node will never be used when create bank field
+ * We store aml_start and aml_length in the bank_field Op for late evaluation
+ * Used in acpi_ex_prep_field_value(Info)
+ *
+ * TBD: Or, should we add a field in struct acpi_create_field_info, like "void *ParentOp"?
+ */
+ info.data_register_node = (struct acpi_namespace_node *)op;
+
+ status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_index_field
+ *
+ * PARAMETERS: Op - Op containing the Field definition and args
+ * region_node - Object for the containing Operation Region
+ * ` walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new index field in the specified operation region
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_index_field(union acpi_parse_object *op,
+ struct acpi_namespace_node *region_node,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_parse_object *arg;
+ struct acpi_create_field_info info;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op);
+
+ /* First arg is the name of the Index register (must already exist) */
+
+ arg = op->common.value.arg;
+ status =
+ acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
+ ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT, walk_state,
+ &info.register_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Second arg is the data register (must already exist) */
+
+ arg = arg->common.next;
+ status =
+ acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
+ ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT, walk_state,
+ &info.data_register_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Next arg is the field flags */
+
+ arg = arg->common.next;
+ info.field_flags = (u8) arg->common.value.integer;
+
+ /* Each remaining arg is a Named Field */
+
+ info.field_type = ACPI_TYPE_LOCAL_INDEX_FIELD;
+ info.region_node = region_node;
+
+ status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dsinit - Object initialization namespace walk
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdispat.h>
+#include <acpi/acnamesp.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsinit")
+
+/* Local prototypes */
+static acpi_status
+acpi_ds_init_one_object(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_one_object
+ *
+ * PARAMETERS: obj_handle - Node for the object
+ * Level - Current nesting level
+ * Context - Points to a init info struct
+ * return_value - Not used
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
+ * within the namespace.
+ *
+ * Currently, the only objects that require initialization are:
+ * 1) Methods
+ * 2) Operation Regions
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_init_one_object(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ struct acpi_init_walk_info *info =
+ (struct acpi_init_walk_info *)context;
+ struct acpi_namespace_node *node =
+ (struct acpi_namespace_node *)obj_handle;
+ acpi_object_type type;
+ acpi_status status;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * We are only interested in NS nodes owned by the table that
+ * was just loaded
+ */
+ if (node->owner_id != info->owner_id) {
+ return (AE_OK);
+ }
+
+ info->object_count++;
+
+ /* And even then, we are only interested in a few object types */
+
+ type = acpi_ns_get_type(obj_handle);
+
+ switch (type) {
+ case ACPI_TYPE_REGION:
+
+ status = acpi_ds_initialize_region(obj_handle);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During Region initialization %p [%4.4s]",
+ obj_handle,
+ acpi_ut_get_node_name(obj_handle)));
+ }
+
+ info->op_region_count++;
+ break;
+
+ case ACPI_TYPE_METHOD:
+
+ info->method_count++;
+ break;
+
+ case ACPI_TYPE_DEVICE:
+
+ info->device_count++;
+ break;
+
+ default:
+ break;
+ }
+
+ /*
+ * We ignore errors from above, and always return OK, since
+ * we don't want to abort the walk on a single error.
+ */
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_initialize_objects
+ *
+ * PARAMETERS: table_desc - Descriptor for parent ACPI table
+ * start_node - Root of subtree to be initialized.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any
+ * necessary initialization on the objects found therein
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_initialize_objects(u32 table_index,
+ struct acpi_namespace_node * start_node)
+{
+ acpi_status status;
+ struct acpi_init_walk_info info;
+ struct acpi_table_header *table;
+ acpi_owner_id owner_id;
+
+ ACPI_FUNCTION_TRACE(ds_initialize_objects);
+
+ status = acpi_tb_get_owner_id(table_index, &owner_id);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "**** Starting initialization of namespace objects ****\n"));
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:"));
+
+ info.method_count = 0;
+ info.op_region_count = 0;
+ info.object_count = 0;
+ info.device_count = 0;
+ info.table_index = table_index;
+ info.owner_id = owner_id;
+
+ /* Walk entire namespace from the supplied root */
+
+ status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
+ acpi_ds_init_one_object, &info, NULL);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
+ }
+
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n",
+ table->signature, owner_id, info.object_count,
+ info.device_count, info.method_count,
+ info.op_region_count));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "%hd Methods, %hd Regions\n", info.method_count,
+ info.op_region_count));
+
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dsmethod - Parser/Interpreter interface - control method parsing
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#ifdef ACPI_DISASSEMBLER
+#include <acpi/acdisasm.h>
+#endif
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsmethod")
+
+/* Local prototypes */
+static acpi_status
+acpi_ds_create_method_mutex(union acpi_operand_object *method_desc);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_error
+ *
+ * PARAMETERS: Status - Execution status
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Called on method error. Invoke the global exception handler if
+ * present, dump the method data if the disassembler is configured
+ *
+ * Note: Allows the exception handler to change the status code
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Ignore AE_OK and control exception codes */
+
+ if (ACPI_SUCCESS(status) || (status & AE_CODE_CONTROL)) {
+ return (status);
+ }
+
+ /* Invoke the global exception handler */
+
+ if (acpi_gbl_exception_handler) {
+
+ /* Exit the interpreter, allow handler to execute methods */
+
+ acpi_ex_exit_interpreter();
+
+ /*
+ * Handler can map the exception code to anything it wants, including
+ * AE_OK, in which case the executing method will not be aborted.
+ */
+ status = acpi_gbl_exception_handler(status,
+ walk_state->method_node ?
+ walk_state->method_node->
+ name.integer : 0,
+ walk_state->opcode,
+ walk_state->aml_offset,
+ NULL);
+ acpi_ex_enter_interpreter();
+ }
+
+ acpi_ds_clear_implicit_return(walk_state);
+
+#ifdef ACPI_DISASSEMBLER
+ if (ACPI_FAILURE(status)) {
+
+ /* Display method locals/args if disassembler is present */
+
+ acpi_dm_dump_method_info(status, walk_state, walk_state->op);
+ }
+#endif
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_method_mutex
+ *
+ * PARAMETERS: obj_desc - The method object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a mutex object for a serialized control method
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_create_method_mutex(union acpi_operand_object *method_desc)
+{
+ union acpi_operand_object *mutex_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ds_create_method_mutex);
+
+ /* Create the new mutex object */
+
+ mutex_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX);
+ if (!mutex_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Create the actual OS Mutex */
+
+ status = acpi_os_create_mutex(&mutex_desc->mutex.os_mutex);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ mutex_desc->mutex.sync_level = method_desc->method.sync_level;
+ method_desc->method.mutex = mutex_desc;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_begin_method_execution
+ *
+ * PARAMETERS: method_node - Node of the method
+ * obj_desc - The method object
+ * walk_state - current state, NULL if not yet executing
+ * a method.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Prepare a method for execution. Parses the method if necessary,
+ * increments the thread count, and waits at the method semaphore
+ * for clearance to execute.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node);
+
+ if (!method_node) {
+ return_ACPI_STATUS(AE_NULL_ENTRY);
+ }
+
+ /* Prevent wraparound of thread count */
+
+ if (obj_desc->method.thread_count == ACPI_UINT8_MAX) {
+ ACPI_ERROR((AE_INFO,
+ "Method reached maximum reentrancy limit (255)"));
+ return_ACPI_STATUS(AE_AML_METHOD_LIMIT);
+ }
+
+ /*
+ * If this method is serialized, we need to acquire the method mutex.
+ */
+ if (obj_desc->method.method_flags & AML_METHOD_SERIALIZED) {
+ /*
+ * Create a mutex for the method if it is defined to be Serialized
+ * and a mutex has not already been created. We defer the mutex creation
+ * until a method is actually executed, to minimize the object count
+ */
+ if (!obj_desc->method.mutex) {
+ status = acpi_ds_create_method_mutex(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * The current_sync_level (per-thread) must be less than or equal to
+ * the sync level of the method. This mechanism provides some
+ * deadlock prevention
+ *
+ * Top-level method invocation has no walk state at this point
+ */
+ if (walk_state &&
+ (walk_state->thread->current_sync_level >
+ obj_desc->method.mutex->mutex.sync_level)) {
+ ACPI_ERROR((AE_INFO,
+ "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%d)",
+ acpi_ut_get_node_name(method_node),
+ walk_state->thread->current_sync_level));
+
+ return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
+ }
+
+ /*
+ * Obtain the method mutex if necessary. Do not acquire mutex for a
+ * recursive call.
+ */
+ if (!walk_state ||
+ !obj_desc->method.mutex->mutex.thread_id ||
+ (walk_state->thread->thread_id !=
+ obj_desc->method.mutex->mutex.thread_id)) {
+ /*
+ * Acquire the method mutex. This releases the interpreter if we
+ * block (and reacquires it before it returns)
+ */
+ status =
+ acpi_ex_system_wait_mutex(obj_desc->method.mutex->
+ mutex.os_mutex,
+ ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Update the mutex and walk info and save the original sync_level */
+
+ if (walk_state) {
+ obj_desc->method.mutex->mutex.
+ original_sync_level =
+ walk_state->thread->current_sync_level;
+
+ obj_desc->method.mutex->mutex.thread_id =
+ walk_state->thread->thread_id;
+ walk_state->thread->current_sync_level =
+ obj_desc->method.sync_level;
+ } else {
+ obj_desc->method.mutex->mutex.
+ original_sync_level =
+ obj_desc->method.mutex->mutex.sync_level;
+ }
+ }
+
+ /* Always increase acquisition depth */
+
+ obj_desc->method.mutex->mutex.acquisition_depth++;
+ }
+
+ /*
+ * Allocate an Owner ID for this method, only if this is the first thread
+ * to begin concurrent execution. We only need one owner_id, even if the
+ * method is invoked recursively.
+ */
+ if (!obj_desc->method.owner_id) {
+ status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+ }
+
+ /*
+ * Increment the method parse tree thread count since it has been
+ * reentered one more time (even if it is the same thread)
+ */
+ obj_desc->method.thread_count++;
+ return_ACPI_STATUS(status);
+
+ cleanup:
+ /* On error, must release the method mutex (if present) */
+
+ if (obj_desc->method.mutex) {
+ acpi_os_release_mutex(obj_desc->method.mutex->mutex.os_mutex);
+ }
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_call_control_method
+ *
+ * PARAMETERS: Thread - Info for this thread
+ * this_walk_state - Current walk state
+ * Op - Current Op to be walked
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Transfer execution to a called control method
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_call_control_method(struct acpi_thread_state *thread,
+ struct acpi_walk_state *this_walk_state,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ struct acpi_namespace_node *method_node;
+ struct acpi_walk_state *next_walk_state = NULL;
+ union acpi_operand_object *obj_desc;
+ struct acpi_evaluate_info *info;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Calling method %p, currentstate=%p\n",
+ this_walk_state->prev_op, this_walk_state));
+
+ /*
+ * Get the namespace entry for the control method we are about to call
+ */
+ method_node = this_walk_state->method_call_node;
+ if (!method_node) {
+ return_ACPI_STATUS(AE_NULL_ENTRY);
+ }
+
+ obj_desc = acpi_ns_get_attached_object(method_node);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
+ /* Init for new method, possibly wait on method mutex */
+
+ status = acpi_ds_begin_method_execution(method_node, obj_desc,
+ this_walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Begin method parse/execution. Create a new walk state */
+
+ next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id,
+ NULL, obj_desc, thread);
+ if (!next_walk_state) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * The resolved arguments were put on the previous walk state's operand
+ * stack. Operands on the previous walk state stack always
+ * start at index 0. Also, null terminate the list of arguments
+ */
+ this_walk_state->operands[this_walk_state->num_operands] = NULL;
+
+ /*
+ * Allocate and initialize the evaluation information block
+ * TBD: this is somewhat inefficient, should change interface to
+ * ds_init_aml_walk. For now, keeps this struct off the CPU stack
+ */
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->parameters = &this_walk_state->operands[0];
+
+ status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node,
+ obj_desc->method.aml_start,
+ obj_desc->method.aml_length, info,
+ ACPI_IMODE_EXECUTE);
+
+ ACPI_FREE(info);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * Delete the operands on the previous walkstate operand stack
+ * (they were copied to new objects)
+ */
+ for (i = 0; i < obj_desc->method.param_count; i++) {
+ acpi_ut_remove_reference(this_walk_state->operands[i]);
+ this_walk_state->operands[i] = NULL;
+ }
+
+ /* Clear the operand stack */
+
+ this_walk_state->num_operands = 0;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "**** Begin nested execution of [%4.4s] **** WalkState=%p\n",
+ method_node->name.ascii, next_walk_state));
+
+ /* Invoke an internal method if necessary */
+
+ if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
+ status = obj_desc->method.implementation(next_walk_state);
+ if (status == AE_OK) {
+ status = AE_CTRL_TERMINATE;
+ }
+ }
+
+ return_ACPI_STATUS(status);
+
+ cleanup:
+
+ /* On error, we must terminate the method properly */
+
+ acpi_ds_terminate_control_method(obj_desc, next_walk_state);
+ if (next_walk_state) {
+ acpi_ds_delete_walk_state(next_walk_state);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_restart_control_method
+ *
+ * PARAMETERS: walk_state - State for preempted method (caller)
+ * return_desc - Return value from the called method
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Restart a method that was preempted by another (nested) method
+ * invocation. Handle the return value (if any) from the callee.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
+ union acpi_operand_object *return_desc)
+{
+ acpi_status status;
+ int same_as_implicit_return;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n",
+ acpi_ut_get_node_name(walk_state->method_node),
+ walk_state->method_call_op, return_desc));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ " ReturnFromThisMethodUsed?=%X ResStack %p Walk %p\n",
+ walk_state->return_used,
+ walk_state->results, walk_state));
+
+ /* Did the called method return a value? */
+
+ if (return_desc) {
+
+ /* Is the implicit return object the same as the return desc? */
+
+ same_as_implicit_return =
+ (walk_state->implicit_return_obj == return_desc);
+
+ /* Are we actually going to use the return value? */
+
+ if (walk_state->return_used) {
+
+ /* Save the return value from the previous method */
+
+ status = acpi_ds_result_push(return_desc, walk_state);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Save as THIS method's return value in case it is returned
+ * immediately to yet another method
+ */
+ walk_state->return_desc = return_desc;
+ }
+
+ /*
+ * The following code is the optional support for the so-called
+ * "implicit return". Some AML code assumes that the last value of the
+ * method is "implicitly" returned to the caller, in the absence of an
+ * explicit return value.
+ *
+ * Just save the last result of the method as the return value.
+ *
+ * NOTE: this is optional because the ASL language does not actually
+ * support this behavior.
+ */
+ else if (!acpi_ds_do_implicit_return
+ (return_desc, walk_state, FALSE)
+ || same_as_implicit_return) {
+ /*
+ * Delete the return value if it will not be used by the
+ * calling method or remove one reference if the explicit return
+ * is the same as the implicit return value.
+ */
+ acpi_ut_remove_reference(return_desc);
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_terminate_control_method
+ *
+ * PARAMETERS: method_desc - Method object
+ * walk_state - State associated with the method
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Terminate a control method. Delete everything that the method
+ * created, delete all locals and arguments, and delete the parse
+ * tree if requested.
+ *
+ * MUTEX: Interpreter is locked
+ *
+ ******************************************************************************/
+
+void
+acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
+ struct acpi_walk_state *walk_state)
+{
+
+ ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state);
+
+ /* method_desc is required, walk_state is optional */
+
+ if (!method_desc) {
+ return_VOID;
+ }
+
+ if (walk_state) {
+
+ /* Delete all arguments and locals */
+
+ acpi_ds_method_data_delete_all(walk_state);
+
+ /*
+ * If method is serialized, release the mutex and restore the
+ * current sync level for this thread
+ */
+ if (method_desc->method.mutex) {
+
+ /* Acquisition Depth handles recursive calls */
+
+ method_desc->method.mutex->mutex.acquisition_depth--;
+ if (!method_desc->method.mutex->mutex.acquisition_depth) {
+ walk_state->thread->current_sync_level =
+ method_desc->method.mutex->mutex.
+ original_sync_level;
+
+ acpi_os_release_mutex(method_desc->method.
+ mutex->mutex.os_mutex);
+ method_desc->method.mutex->mutex.thread_id = NULL;
+ }
+ }
+
+ /*
+ * Delete any namespace objects created anywhere within
+ * the namespace by the execution of this method
+ */
+ acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id);
+ }
+
+ /* Decrement the thread count on the method */
+
+ if (method_desc->method.thread_count) {
+ method_desc->method.thread_count--;
+ } else {
+ ACPI_ERROR((AE_INFO, "Invalid zero thread count in method"));
+ }
+
+ /* Are there any other threads currently executing this method? */
+
+ if (method_desc->method.thread_count) {
+ /*
+ * Additional threads. Do not release the owner_id in this case,
+ * we immediately reuse it for the next thread executing this method
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "*** Completed execution of one thread, %d threads remaining\n",
+ method_desc->method.thread_count));
+ } else {
+ /* This is the only executing thread for this method */
+
+ /*
+ * Support to dynamically change a method from not_serialized to
+ * Serialized if it appears that the method is incorrectly written and
+ * does not support multiple thread execution. The best example of this
+ * is if such a method creates namespace objects and blocks. A second
+ * thread will fail with an AE_ALREADY_EXISTS exception
+ *
+ * This code is here because we must wait until the last thread exits
+ * before creating the synchronization semaphore.
+ */
+ if ((method_desc->method.method_flags & AML_METHOD_SERIALIZED)
+ && (!method_desc->method.mutex)) {
+ (void)acpi_ds_create_method_mutex(method_desc);
+ }
+
+ /* No more threads, we can free the owner_id */
+
+ acpi_ut_release_owner_id(&method_desc->method.owner_id);
+ }
+
+ return_VOID;
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: dsmthdat - control method arguments and local variables
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdispat.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsmthdat")
+
+/* Local prototypes */
+static void
+acpi_ds_method_data_delete_value(u8 type,
+ u32 index, struct acpi_walk_state *walk_state);
+
+static acpi_status
+acpi_ds_method_data_set_value(u8 type,
+ u32 index,
+ union acpi_operand_object *object,
+ struct acpi_walk_state *walk_state);
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+acpi_object_type
+acpi_ds_method_data_get_type(u16 opcode,
+ u32 index, struct acpi_walk_state *walk_state);
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_init
+ *
+ * PARAMETERS: walk_state - Current walk state object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize the data structures that hold the method's arguments
+ * and locals. The data struct is an array of namespace nodes for
+ * each - this allows ref_of and de_ref_of to work properly for these
+ * special data types.
+ *
+ * NOTES: walk_state fields are initialized to zero by the
+ * ACPI_ALLOCATE_ZEROED().
+ *
+ * A pseudo-Namespace Node is assigned to each argument and local
+ * so that ref_of() can return a pointer to the Node.
+ *
+ ******************************************************************************/
+
+void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ds_method_data_init);
+
+ /* Init the method arguments */
+
+ for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
+ ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name,
+ NAMEOF_ARG_NTE);
+ walk_state->arguments[i].name.integer |= (i << 24);
+ walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED;
+ walk_state->arguments[i].type = ACPI_TYPE_ANY;
+ walk_state->arguments[i].flags =
+ ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG;
+ }
+
+ /* Init the method locals */
+
+ for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
+ ACPI_MOVE_32_TO_32(&walk_state->local_variables[i].name,
+ NAMEOF_LOCAL_NTE);
+
+ walk_state->local_variables[i].name.integer |= (i << 24);
+ walk_state->local_variables[i].descriptor_type =
+ ACPI_DESC_TYPE_NAMED;
+ walk_state->local_variables[i].type = ACPI_TYPE_ANY;
+ walk_state->local_variables[i].flags =
+ ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL;
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_delete_all
+ *
+ * PARAMETERS: walk_state - Current walk state object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete method locals and arguments. Arguments are only
+ * deleted if this method was called from another method.
+ *
+ ******************************************************************************/
+
+void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state)
+{
+ u32 index;
+
+ ACPI_FUNCTION_TRACE(ds_method_data_delete_all);
+
+ /* Detach the locals */
+
+ for (index = 0; index < ACPI_METHOD_NUM_LOCALS; index++) {
+ if (walk_state->local_variables[index].object) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Local%d=%p\n",
+ index,
+ walk_state->local_variables[index].
+ object));
+
+ /* Detach object (if present) and remove a reference */
+
+ acpi_ns_detach_object(&walk_state->
+ local_variables[index]);
+ }
+ }
+
+ /* Detach the arguments */
+
+ for (index = 0; index < ACPI_METHOD_NUM_ARGS; index++) {
+ if (walk_state->arguments[index].object) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Arg%d=%p\n",
+ index,
+ walk_state->arguments[index].object));
+
+ /* Detach object (if present) and remove a reference */
+
+ acpi_ns_detach_object(&walk_state->arguments[index]);
+ }
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_init_args
+ *
+ * PARAMETERS: *Params - Pointer to a parameter list for the method
+ * max_param_count - The arg count for this method
+ * walk_state - Current walk state object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize arguments for a method. The parameter list is a list
+ * of ACPI operand objects, either null terminated or whose length
+ * is defined by max_param_count.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_method_data_init_args(union acpi_operand_object **params,
+ u32 max_param_count,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ u32 index = 0;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params);
+
+ if (!params) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "No param list passed to method\n"));
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Copy passed parameters into the new method stack frame */
+
+ while ((index < ACPI_METHOD_NUM_ARGS) &&
+ (index < max_param_count) && params[index]) {
+ /*
+ * A valid parameter.
+ * Store the argument in the method/walk descriptor.
+ * Do not copy the arg in order to implement call by reference
+ */
+ status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index,
+ params[index],
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ index++;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%d args passed to method\n", index));
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_get_node
+ *
+ * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
+ * ACPI_REFCLASS_ARG
+ * Index - Which Local or Arg whose type to get
+ * walk_state - Current walk state object
+ * Node - Where the node is returned.
+ *
+ * RETURN: Status and node
+ *
+ * DESCRIPTION: Get the Node associated with a local or arg.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_method_data_get_node(u8 type,
+ u32 index,
+ struct acpi_walk_state *walk_state,
+ struct acpi_namespace_node **node)
+{
+ ACPI_FUNCTION_TRACE(ds_method_data_get_node);
+
+ /*
+ * Method Locals and Arguments are supported
+ */
+ switch (type) {
+ case ACPI_REFCLASS_LOCAL:
+
+ if (index > ACPI_METHOD_MAX_LOCAL) {
+ ACPI_ERROR((AE_INFO,
+ "Local index %d is invalid (max %d)",
+ index, ACPI_METHOD_MAX_LOCAL));
+ return_ACPI_STATUS(AE_AML_INVALID_INDEX);
+ }
+
+ /* Return a pointer to the pseudo-node */
+
+ *node = &walk_state->local_variables[index];
+ break;
+
+ case ACPI_REFCLASS_ARG:
+
+ if (index > ACPI_METHOD_MAX_ARG) {
+ ACPI_ERROR((AE_INFO,
+ "Arg index %d is invalid (max %d)",
+ index, ACPI_METHOD_MAX_ARG));
+ return_ACPI_STATUS(AE_AML_INVALID_INDEX);
+ }
+
+ /* Return a pointer to the pseudo-node */
+
+ *node = &walk_state->arguments[index];
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Type %d is invalid", type));
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_set_value
+ *
+ * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
+ * ACPI_REFCLASS_ARG
+ * Index - Which Local or Arg to get
+ * Object - Object to be inserted into the stack entry
+ * walk_state - Current walk state object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index.
+ * Note: There is no "implicit conversion" for locals.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_method_data_set_value(u8 type,
+ u32 index,
+ union acpi_operand_object *object,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(ds_method_data_set_value);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "NewObj %p Type %2.2X, Refs=%d [%s]\n", object,
+ type, object->common.reference_count,
+ acpi_ut_get_type_name(object->common.type)));
+
+ /* Get the namespace node for the arg/local */
+
+ status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Increment ref count so object can't be deleted while installed.
+ * NOTE: We do not copy the object in order to preserve the call by
+ * reference semantics of ACPI Control Method invocation.
+ * (See ACPI Specification 2.0_c)
+ */
+ acpi_ut_add_reference(object);
+
+ /* Install the object */
+
+ node->object = object;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_get_value
+ *
+ * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
+ * ACPI_REFCLASS_ARG
+ * Index - Which local_var or argument to get
+ * walk_state - Current walk state object
+ * dest_desc - Where Arg or Local value is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieve value of selected Arg or Local for this method
+ * Used only in acpi_ex_resolve_to_value().
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_method_data_get_value(u8 type,
+ u32 index,
+ struct acpi_walk_state *walk_state,
+ union acpi_operand_object **dest_desc)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ union acpi_operand_object *object;
+
+ ACPI_FUNCTION_TRACE(ds_method_data_get_value);
+
+ /* Validate the object descriptor */
+
+ if (!dest_desc) {
+ ACPI_ERROR((AE_INFO, "Null object descriptor pointer"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Get the namespace node for the arg/local */
+
+ status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the object from the node */
+
+ object = node->object;
+
+ /* Examine the returned object, it must be valid. */
+
+ if (!object) {
+ /*
+ * Index points to uninitialized object.
+ * This means that either 1) The expected argument was
+ * not passed to the method, or 2) A local variable
+ * was referenced by the method (via the ASL)
+ * before it was initialized. Either case is an error.
+ */
+
+ /* If slack enabled, init the local_x/arg_x to an Integer of value zero */
+
+ if (acpi_gbl_enable_interpreter_slack) {
+ object =
+ acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!object) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ object->integer.value = 0;
+ node->object = object;
+ }
+
+ /* Otherwise, return the error */
+
+ else
+ switch (type) {
+ case ACPI_REFCLASS_ARG:
+
+ ACPI_ERROR((AE_INFO,
+ "Uninitialized Arg[%d] at node %p",
+ index, node));
+
+ return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG);
+
+ case ACPI_REFCLASS_LOCAL:
+
+ ACPI_ERROR((AE_INFO,
+ "Uninitialized Local[%d] at node %p",
+ index, node));
+
+ return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL);
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Not a Arg/Local opcode: %X",
+ type));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+ }
+
+ /*
+ * The Index points to an initialized and valid object.
+ * Return an additional reference to the object
+ */
+ *dest_desc = object;
+ acpi_ut_add_reference(object);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_delete_value
+ *
+ * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
+ * ACPI_REFCLASS_ARG
+ * Index - Which local_var or argument to delete
+ * walk_state - Current walk state object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete the entry at Opcode:Index. Inserts
+ * a null into the stack slot after the object is deleted.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ds_method_data_delete_value(u8 type,
+ u32 index, struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ union acpi_operand_object *object;
+
+ ACPI_FUNCTION_TRACE(ds_method_data_delete_value);
+
+ /* Get the namespace node for the arg/local */
+
+ status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+
+ /* Get the associated object */
+
+ object = acpi_ns_get_attached_object(node);
+
+ /*
+ * Undefine the Arg or Local by setting its descriptor
+ * pointer to NULL. Locals/Args can contain both
+ * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs
+ */
+ node->object = NULL;
+
+ if ((object) &&
+ (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_OPERAND)) {
+ /*
+ * There is a valid object.
+ * Decrement the reference count by one to balance the
+ * increment when the object was stored.
+ */
+ acpi_ut_remove_reference(object);
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_store_object_to_local
+ *
+ * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
+ * ACPI_REFCLASS_ARG
+ * Index - Which Local or Arg to set
+ * obj_desc - Value to be stored
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store a value in an Arg or Local. The obj_desc is installed
+ * as the new value for the Arg or Local and the reference count
+ * for obj_desc is incremented.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_store_object_to_local(u8 type,
+ u32 index,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ union acpi_operand_object *current_obj_desc;
+ union acpi_operand_object *new_obj_desc;
+
+ ACPI_FUNCTION_TRACE(ds_store_object_to_local);
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Type=%2.2X Index=%d Obj=%p\n",
+ type, index, obj_desc));
+
+ /* Parameter validation */
+
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Get the namespace node for the arg/local */
+
+ status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ current_obj_desc = acpi_ns_get_attached_object(node);
+ if (current_obj_desc == obj_desc) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p already installed!\n",
+ obj_desc));
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * If the reference count on the object is more than one, we must
+ * take a copy of the object before we store. A reference count
+ * of exactly 1 means that the object was just created during the
+ * evaluation of an expression, and we can safely use it since it
+ * is not used anywhere else.
+ */
+ new_obj_desc = obj_desc;
+ if (obj_desc->common.reference_count > 1) {
+ status =
+ acpi_ut_copy_iobject_to_iobject(obj_desc, &new_obj_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * If there is an object already in this slot, we either
+ * have to delete it, or if this is an argument and there
+ * is an object reference stored there, we have to do
+ * an indirect store!
+ */
+ if (current_obj_desc) {
+ /*
+ * Check for an indirect store if an argument
+ * contains an object reference (stored as an Node).
+ * We don't allow this automatic dereferencing for
+ * locals, since a store to a local should overwrite
+ * anything there, including an object reference.
+ *
+ * If both Arg0 and Local0 contain ref_of (Local4):
+ *
+ * Store (1, Arg0) - Causes indirect store to local4
+ * Store (1, Local0) - Stores 1 in local0, overwriting
+ * the reference to local4
+ * Store (1, de_refof (Local0)) - Causes indirect store to local4
+ *
+ * Weird, but true.
+ */
+ if (type == ACPI_REFCLASS_ARG) {
+ /*
+ * If we have a valid reference object that came from ref_of(),
+ * do the indirect store
+ */
+ if ((ACPI_GET_DESCRIPTOR_TYPE(current_obj_desc) ==
+ ACPI_DESC_TYPE_OPERAND)
+ && (current_obj_desc->common.type ==
+ ACPI_TYPE_LOCAL_REFERENCE)
+ && (current_obj_desc->reference.class ==
+ ACPI_REFCLASS_REFOF)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Arg (%p) is an ObjRef(Node), storing in node %p\n",
+ new_obj_desc,
+ current_obj_desc));
+
+ /*
+ * Store this object to the Node (perform the indirect store)
+ * NOTE: No implicit conversion is performed, as per the ACPI
+ * specification rules on storing to Locals/Args.
+ */
+ status =
+ acpi_ex_store_object_to_node(new_obj_desc,
+ current_obj_desc->
+ reference.
+ object,
+ walk_state,
+ ACPI_NO_IMPLICIT_CONVERSION);
+
+ /* Remove local reference if we copied the object above */
+
+ if (new_obj_desc != obj_desc) {
+ acpi_ut_remove_reference(new_obj_desc);
+ }
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Delete the existing object before storing the new one */
+
+ acpi_ds_method_data_delete_value(type, index, walk_state);
+ }
+
+ /*
+ * Install the Obj descriptor (*new_obj_desc) into
+ * the descriptor for the Arg or Local.
+ * (increments the object reference count by one)
+ */
+ status =
+ acpi_ds_method_data_set_value(type, index, new_obj_desc,
+ walk_state);
+
+ /* Remove local reference if we copied the object above */
+
+ if (new_obj_desc != obj_desc) {
+ acpi_ut_remove_reference(new_obj_desc);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_method_data_get_type
+ *
+ * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
+ * Index - Which Local or Arg whose type to get
+ * walk_state - Current walk state object
+ *
+ * RETURN: Data type of current value of the selected Arg or Local
+ *
+ * DESCRIPTION: Get the type of the object stored in the Local or Arg
+ *
+ ******************************************************************************/
+
+acpi_object_type
+acpi_ds_method_data_get_type(u16 opcode,
+ u32 index, struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ union acpi_operand_object *object;
+
+ ACPI_FUNCTION_TRACE(ds_method_data_get_type);
+
+ /* Get the namespace node for the arg/local */
+
+ status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
+ if (ACPI_FAILURE(status)) {
+ return_VALUE((ACPI_TYPE_NOT_FOUND));
+ }
+
+ /* Get the object */
+
+ object = acpi_ns_get_attached_object(node);
+ if (!object) {
+
+ /* Uninitialized local/arg, return TYPE_ANY */
+
+ return_VALUE(ACPI_TYPE_ANY);
+ }
+
+ /* Get the object type */
+
+ return_VALUE(ACPI_GET_OBJECT_TYPE(object));
+}
+#endif
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dsobject - Dispatcher object management routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsobject")
+
+/* Local prototypes */
+static acpi_status
+acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ union acpi_operand_object **obj_desc_ptr);
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_object
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser object to be translated
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
+ * Simple objects are any objects other than a package object!
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ds_build_internal_object);
+
+ *obj_desc_ptr = NULL;
+ if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+ /*
+ * This is a named object reference. If this name was
+ * previously looked up in the namespace, it was stored in this op.
+ * Otherwise, go ahead and look it up now
+ */
+ if (!op->common.node) {
+ status = acpi_ns_lookup(walk_state->scope_info,
+ op->common.value.string,
+ ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT |
+ ACPI_NS_DONT_OPEN_SCOPE, NULL,
+ ACPI_CAST_INDIRECT_PTR(struct
+ acpi_namespace_node,
+ &(op->
+ common.
+ node)));
+ if (ACPI_FAILURE(status)) {
+
+ /* Check if we are resolving a named reference within a package */
+
+ if ((status == AE_NOT_FOUND)
+ && (acpi_gbl_enable_interpreter_slack)
+ &&
+ ((op->common.parent->common.aml_opcode ==
+ AML_PACKAGE_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_VAR_PACKAGE_OP))) {
+ /*
+ * We didn't find the target and we are populating elements
+ * of a package - ignore if slack enabled. Some ASL code
+ * contains dangling invalid references in packages and
+ * expects that no exception will be issued. Leave the
+ * element as a null element. It cannot be used, but it
+ * can be overwritten by subsequent ASL code - this is
+ * typically the case.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Ignoring unresolved reference in package [%4.4s]\n",
+ walk_state->
+ scope_info->scope.
+ node->name.ascii));
+
+ return_ACPI_STATUS(AE_OK);
+ } else {
+ ACPI_ERROR_NAMESPACE(op->common.value.
+ string, status);
+ }
+
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Special object resolution for elements of a package */
+
+ if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (op->common.parent->common.aml_opcode ==
+ AML_VAR_PACKAGE_OP)) {
+ /*
+ * Attempt to resolve the node to a value before we insert it into
+ * the package. If this is a reference to a common data type,
+ * resolve it immediately. According to the ACPI spec, package
+ * elements can only be "data objects" or method references.
+ * Attempt to resolve to an Integer, Buffer, String or Package.
+ * If cannot, return the named reference (for things like Devices,
+ * Methods, etc.) Buffer Fields and Fields will resolve to simple
+ * objects (int/buf/str/pkg).
+ *
+ * NOTE: References to things like Devices, Methods, Mutexes, etc.
+ * will remain as named references. This behavior is not described
+ * in the ACPI spec, but it appears to be an oversight.
+ */
+ obj_desc =
+ ACPI_CAST_PTR(union acpi_operand_object,
+ op->common.node);
+
+ status =
+ acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
+ (struct
+ acpi_namespace_node,
+ &obj_desc),
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ switch (op->common.node->type) {
+ /*
+ * For these types, we need the actual node, not the subobject.
+ * However, the subobject did not get an extra reference count above.
+ *
+ * TBD: should ex_resolve_node_to_value be changed to fix this?
+ */
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_THERMAL:
+
+ acpi_ut_add_reference(op->common.node->object);
+
+ /*lint -fallthrough */
+ /*
+ * For these types, we need the actual node, not the subobject.
+ * The subobject got an extra reference count in ex_resolve_node_to_value.
+ */
+ case ACPI_TYPE_MUTEX:
+ case ACPI_TYPE_METHOD:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_EVENT:
+ case ACPI_TYPE_REGION:
+
+ /* We will create a reference object for these types below */
+ break;
+
+ default:
+ /*
+ * All other types - the node was resolved to an actual
+ * object, we are done.
+ */
+ goto exit;
+ }
+ }
+ }
+
+ /* Create and init a new internal ACPI object */
+
+ obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
+ (op->common.aml_opcode))->
+ object_type);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ status =
+ acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+ }
+
+ exit:
+ *obj_desc_ptr = obj_desc;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_buffer_obj
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser object to be translated
+ * buffer_length - Length of the buffer
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op package object to the equivalent
+ * namespace object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u32 buffer_length,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_parse_object *arg;
+ union acpi_operand_object *obj_desc;
+ union acpi_parse_object *byte_list;
+ u32 byte_list_length = 0;
+
+ ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
+
+ /*
+ * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
+ * The buffer object already exists (from the NS node), otherwise it must
+ * be created.
+ */
+ obj_desc = *obj_desc_ptr;
+ if (!obj_desc) {
+
+ /* Create a new buffer object */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
+ *obj_desc_ptr = obj_desc;
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ }
+
+ /*
+ * Second arg is the buffer data (optional) byte_list can be either
+ * individual bytes or a string initializer. In either case, a
+ * byte_list appears in the AML.
+ */
+ arg = op->common.value.arg; /* skip first arg */
+
+ byte_list = arg->named.next;
+ if (byte_list) {
+ if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
+ ACPI_ERROR((AE_INFO,
+ "Expecting bytelist, got AML opcode %X in op %p",
+ byte_list->common.aml_opcode, byte_list));
+
+ acpi_ut_remove_reference(obj_desc);
+ return (AE_TYPE);
+ }
+
+ byte_list_length = (u32) byte_list->common.value.integer;
+ }
+
+ /*
+ * The buffer length (number of bytes) will be the larger of:
+ * 1) The specified buffer length and
+ * 2) The length of the initializer byte list
+ */
+ obj_desc->buffer.length = buffer_length;
+ if (byte_list_length > buffer_length) {
+ obj_desc->buffer.length = byte_list_length;
+ }
+
+ /* Allocate the buffer */
+
+ if (obj_desc->buffer.length == 0) {
+ obj_desc->buffer.pointer = NULL;
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Buffer defined with zero length in AML, creating\n"));
+ } else {
+ obj_desc->buffer.pointer =
+ ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
+ if (!obj_desc->buffer.pointer) {
+ acpi_ut_delete_object_desc(obj_desc);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize buffer from the byte_list (if present) */
+
+ if (byte_list) {
+ ACPI_MEMCPY(obj_desc->buffer.pointer,
+ byte_list->named.data, byte_list_length);
+ }
+ }
+
+ obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
+ op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_build_internal_package_obj
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser object to be translated
+ * element_count - Number of elements in the package - this is
+ * the num_elements argument to Package()
+ * obj_desc_ptr - Where the ACPI internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parser Op package object to the equivalent
+ * namespace object
+ *
+ * NOTE: The number of elements in the package will be always be the num_elements
+ * count, regardless of the number of elements in the package list. If
+ * num_elements is smaller, only that many package list elements are used.
+ * if num_elements is larger, the Package object is padded out with
+ * objects of type Uninitialized (as per ACPI spec.)
+ *
+ * Even though the ASL compilers do not allow num_elements to be smaller
+ * than the Package list length (for the fixed length package opcode), some
+ * BIOS code modifies the AML on the fly to adjust the num_elements, and
+ * this code compensates for that. This also provides compatibility with
+ * other AML interpreters.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u32 element_count,
+ union acpi_operand_object **obj_desc_ptr)
+{
+ union acpi_parse_object *arg;
+ union acpi_parse_object *parent;
+ union acpi_operand_object *obj_desc = NULL;
+ acpi_status status = AE_OK;
+ unsigned i;
+ u16 index;
+ u16 reference_count;
+
+ ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
+
+ /* Find the parent of a possibly nested package */
+
+ parent = op->common.parent;
+ while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
+ parent = parent->common.parent;
+ }
+
+ /*
+ * If we are evaluating a Named package object "Name (xxxx, Package)",
+ * the package object already exists, otherwise it must be created.
+ */
+ obj_desc = *obj_desc_ptr;
+ if (!obj_desc) {
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
+ *obj_desc_ptr = obj_desc;
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ obj_desc->package.node = parent->common.node;
+ }
+
+ /*
+ * Allocate the element array (array of pointers to the individual
+ * objects) based on the num_elements parameter. Add an extra pointer slot
+ * so that the list is always null terminated.
+ */
+ obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
+ element_count +
+ 1) * sizeof(void *));
+
+ if (!obj_desc->package.elements) {
+ acpi_ut_delete_object_desc(obj_desc);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ obj_desc->package.count = element_count;
+
+ /*
+ * Initialize the elements of the package, up to the num_elements count.
+ * Package is automatically padded with uninitialized (NULL) elements
+ * if num_elements is greater than the package list length. Likewise,
+ * Package is truncated if num_elements is less than the list length.
+ */
+ arg = op->common.value.arg;
+ arg = arg->common.next;
+ for (i = 0; arg && (i < element_count); i++) {
+ if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
+ if (arg->common.node->type == ACPI_TYPE_METHOD) {
+ /*
+ * A method reference "looks" to the parser to be a method
+ * invocation, so we special case it here
+ */
+ arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
+ status =
+ acpi_ds_build_internal_object(walk_state,
+ arg,
+ &obj_desc->
+ package.
+ elements[i]);
+ } else {
+ /* This package element is already built, just get it */
+
+ obj_desc->package.elements[i] =
+ ACPI_CAST_PTR(union acpi_operand_object,
+ arg->common.node);
+ }
+ } else {
+ status = acpi_ds_build_internal_object(walk_state, arg,
+ &obj_desc->
+ package.
+ elements[i]);
+ }
+
+ if (*obj_desc_ptr) {
+
+ /* Existing package, get existing reference count */
+
+ reference_count =
+ (*obj_desc_ptr)->common.reference_count;
+ if (reference_count > 1) {
+
+ /* Make new element ref count match original ref count */
+
+ for (index = 0; index < (reference_count - 1);
+ index++) {
+ acpi_ut_add_reference((obj_desc->
+ package.
+ elements[i]));
+ }
+ }
+ }
+
+ arg = arg->common.next;
+ }
+
+ /* Check for match between num_elements and actual length of package_list */
+
+ if (arg) {
+ /*
+ * num_elements was exhausted, but there are remaining elements in the
+ * package_list.
+ *
+ * Note: technically, this is an error, from ACPI spec: "It is an error
+ * for NumElements to be less than the number of elements in the
+ * PackageList". However, for now, we just print an error message and
+ * no exception is returned.
+ */
+ while (arg) {
+
+ /* Find out how many elements there really are */
+
+ i++;
+ arg = arg->common.next;
+ }
+
+ ACPI_WARNING((AE_INFO,
+ "Package List length (%X) larger than NumElements count (%X), truncated\n",
+ i, element_count));
+ } else if (i < element_count) {
+ /*
+ * Arg list (elements) was exhausted, but we did not reach num_elements count.
+ * Note: this is not an error, the package is padded out with NULLs.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Package List length (%X) smaller than NumElements count (%X), padded with null elements\n",
+ i, element_count));
+ }
+
+ obj_desc->package.flags |= AOPOBJ_DATA_VALID;
+ op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_node
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Node - NS Node to be initialized
+ * Op - Parser object to be translated
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create the object to be associated with a namespace node
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_node(struct acpi_walk_state *walk_state,
+ struct acpi_namespace_node *node,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
+
+ /*
+ * Because of the execution pass through the non-control-method
+ * parts of the table, we can arrive here twice. Only init
+ * the named object node the first time through
+ */
+ if (acpi_ns_get_attached_object(node)) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ if (!op->common.value.arg) {
+
+ /* No arguments, there is nothing to do */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Build an internal object for the argument(s) */
+
+ status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Re-type the object according to its argument */
+
+ node->type = ACPI_GET_OBJECT_TYPE(obj_desc);
+
+ /* Attach obj to node */
+
+ status = acpi_ns_attach_object(node, obj_desc, node->type);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+#endif /* ACPI_NO_METHOD_EXECUTION */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_object_from_op
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Op - Parser op used to init the internal object
+ * Opcode - AML opcode associated with the object
+ * ret_obj_desc - Namespace object to be initialized
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize a namespace object from a parser Op and its
+ * associated arguments. The namespace object is a more compact
+ * representation of the Op and its arguments.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ u16 opcode,
+ union acpi_operand_object **ret_obj_desc)
+{
+ const struct acpi_opcode_info *op_info;
+ union acpi_operand_object *obj_desc;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ds_init_object_from_op);
+
+ obj_desc = *ret_obj_desc;
+ op_info = acpi_ps_get_opcode_info(opcode);
+ if (op_info->class == AML_CLASS_UNKNOWN) {
+
+ /* Unknown opcode */
+
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ /* Perform per-object initialization */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * Defer evaluation of Buffer term_arg operand
+ */
+ obj_desc->buffer.node =
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ walk_state->operands[0]);
+ obj_desc->buffer.aml_start = op->named.data;
+ obj_desc->buffer.aml_length = op->named.length;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ /*
+ * Defer evaluation of Package term_arg operand
+ */
+ obj_desc->package.node =
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ walk_state->operands[0]);
+ obj_desc->package.aml_start = op->named.data;
+ obj_desc->package.aml_length = op->named.length;
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ switch (op_info->type) {
+ case AML_TYPE_CONSTANT:
+ /*
+ * Resolve AML Constants here - AND ONLY HERE!
+ * All constants are integers.
+ * We mark the integer with a flag that indicates that it started
+ * life as a constant -- so that stores to constants will perform
+ * as expected (noop). zero_op is used as a placeholder for optional
+ * target operands.
+ */
+ obj_desc->common.flags = AOPOBJ_AML_CONSTANT;
+
+ switch (opcode) {
+ case AML_ZERO_OP:
+
+ obj_desc->integer.value = 0;
+ break;
+
+ case AML_ONE_OP:
+
+ obj_desc->integer.value = 1;
+ break;
+
+ case AML_ONES_OP:
+
+ obj_desc->integer.value = ACPI_INTEGER_MAX;
+
+ /* Truncate value if we are executing from a 32-bit ACPI table */
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ acpi_ex_truncate_for32bit_table(obj_desc);
+#endif
+ break;
+
+ case AML_REVISION_OP:
+
+ obj_desc->integer.value = ACPI_CA_VERSION;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown constant opcode %X",
+ opcode));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+ break;
+
+ case AML_TYPE_LITERAL:
+
+ obj_desc->integer.value = op->common.value.integer;
+#ifndef ACPI_NO_METHOD_EXECUTION
+ acpi_ex_truncate_for32bit_table(obj_desc);
+#endif
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Unknown Integer type %X",
+ op_info->type));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ obj_desc->string.pointer = op->common.value.string;
+ obj_desc->string.length =
+ (u32) ACPI_STRLEN(op->common.value.string);
+
+ /*
+ * The string is contained in the ACPI table, don't ever try
+ * to delete it
+ */
+ obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
+ break;
+
+ case ACPI_TYPE_METHOD:
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ switch (op_info->type) {
+ case AML_TYPE_LOCAL_VARIABLE:
+
+ /* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
+
+ obj_desc->reference.value = opcode - AML_LOCAL_OP;
+ obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ status =
+ acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL,
+ obj_desc->reference.
+ value, walk_state,
+ ACPI_CAST_INDIRECT_PTR
+ (struct
+ acpi_namespace_node,
+ &obj_desc->reference.
+ object));
+#endif
+ break;
+
+ case AML_TYPE_METHOD_ARGUMENT:
+
+ /* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
+
+ obj_desc->reference.value = opcode - AML_ARG_OP;
+ obj_desc->reference.class = ACPI_REFCLASS_ARG;
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG,
+ obj_desc->
+ reference.value,
+ walk_state,
+ ACPI_CAST_INDIRECT_PTR
+ (struct
+ acpi_namespace_node,
+ &obj_desc->
+ reference.
+ object));
+#endif
+ break;
+
+ default: /* Object name or Debug object */
+
+ switch (op->common.aml_opcode) {
+ case AML_INT_NAMEPATH_OP:
+
+ /* Node was saved in Op */
+
+ obj_desc->reference.node = op->common.node;
+ obj_desc->reference.object =
+ op->common.node->object;
+ obj_desc->reference.class = ACPI_REFCLASS_NAME;
+ break;
+
+ case AML_DEBUG_OP:
+
+ obj_desc->reference.class = ACPI_REFCLASS_DEBUG;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unimplemented reference type for AML opcode: %4.4X",
+ opcode));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ break;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unimplemented data type: %X",
+ ACPI_GET_OBJECT_TYPE(obj_desc)));
+
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dsopcode - Dispatcher Op Region support and handling of
+ * "control" opcodes
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsopcode")
+
+/* Local prototypes */
+static acpi_status
+acpi_ds_execute_arguments(struct acpi_namespace_node *node,
+ struct acpi_namespace_node *scope_node,
+ u32 aml_length, u8 * aml_start);
+
+static acpi_status
+acpi_ds_init_buffer_field(u16 aml_opcode,
+ union acpi_operand_object *obj_desc,
+ union acpi_operand_object *buffer_desc,
+ union acpi_operand_object *offset_desc,
+ union acpi_operand_object *length_desc,
+ union acpi_operand_object *result_desc);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_execute_arguments
+ *
+ * PARAMETERS: Node - Object NS node
+ * scope_node - Parent NS node
+ * aml_length - Length of executable AML
+ * aml_start - Pointer to the AML
+ *
+ * RETURN: Status.
+ *
+ * DESCRIPTION: Late (deferred) execution of region or field arguments
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_execute_arguments(struct acpi_namespace_node *node,
+ struct acpi_namespace_node *scope_node,
+ u32 aml_length, u8 * aml_start)
+{
+ acpi_status status;
+ union acpi_parse_object *op;
+ struct acpi_walk_state *walk_state;
+
+ ACPI_FUNCTION_TRACE(ds_execute_arguments);
+
+ /*
+ * Allocate a new parser op to be the root of the parsed tree
+ */
+ op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
+ if (!op) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Save the Node for use in acpi_ps_parse_aml */
+
+ op->common.node = scope_node;
+
+ /* Create and initialize a new parser state */
+
+ walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
+ if (!walk_state) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
+ aml_length, NULL, ACPI_IMODE_LOAD_PASS1);
+ if (ACPI_FAILURE(status)) {
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ /* Mark this parse as a deferred opcode */
+
+ walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP;
+ walk_state->deferred_node = node;
+
+ /* Pass1: Parse the entire declaration */
+
+ status = acpi_ps_parse_aml(walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Get and init the Op created above */
+
+ op->common.node = node;
+ acpi_ps_delete_parse_tree(op);
+
+ /* Evaluate the deferred arguments */
+
+ op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
+ if (!op) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ op->common.node = scope_node;
+
+ /* Create and initialize a new parser state */
+
+ walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
+ if (!walk_state) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Execute the opcode and arguments */
+
+ status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
+ aml_length, NULL, ACPI_IMODE_EXECUTE);
+ if (ACPI_FAILURE(status)) {
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ /* Mark this execution as a deferred opcode */
+
+ walk_state->deferred_node = node;
+ status = acpi_ps_parse_aml(walk_state);
+
+ cleanup:
+ acpi_ps_delete_parse_tree(op);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_buffer_field_arguments
+ *
+ * PARAMETERS: obj_desc - A valid buffer_field object
+ *
+ * RETURN: Status.
+ *
+ * DESCRIPTION: Get buffer_field Buffer and Index. This implements the late
+ * evaluation of these field attributes.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
+{
+ union acpi_operand_object *extra_desc;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc);
+
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Get the AML pointer (method object) and buffer_field node */
+
+ extra_desc = acpi_ns_get_secondary_object(obj_desc);
+ node = obj_desc->buffer_field.node;
+
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_BUFFER_FIELD, node, NULL));
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
+ acpi_ut_get_node_name(node)));
+
+ /* Execute the AML code for the term_arg arguments */
+
+ status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
+ extra_desc->extra.aml_length,
+ extra_desc->extra.aml_start);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_bank_field_arguments
+ *
+ * PARAMETERS: obj_desc - A valid bank_field object
+ *
+ * RETURN: Status.
+ *
+ * DESCRIPTION: Get bank_field bank_value. This implements the late
+ * evaluation of these field attributes.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc)
+{
+ union acpi_operand_object *extra_desc;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc);
+
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Get the AML pointer (method object) and bank_field node */
+
+ extra_desc = acpi_ns_get_secondary_object(obj_desc);
+ node = obj_desc->bank_field.node;
+
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL));
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
+ acpi_ut_get_node_name(node)));
+
+ /* Execute the AML code for the term_arg arguments */
+
+ status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
+ extra_desc->extra.aml_length,
+ extra_desc->extra.aml_start);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_buffer_arguments
+ *
+ * PARAMETERS: obj_desc - A valid Buffer object
+ *
+ * RETURN: Status.
+ *
+ * DESCRIPTION: Get Buffer length and initializer byte list. This implements
+ * the late evaluation of these attributes.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc);
+
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Get the Buffer node */
+
+ node = obj_desc->buffer.node;
+ if (!node) {
+ ACPI_ERROR((AE_INFO,
+ "No pointer back to NS node in buffer obj %p",
+ obj_desc));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n"));
+
+ /* Execute the AML code for the term_arg arguments */
+
+ status = acpi_ds_execute_arguments(node, node,
+ obj_desc->buffer.aml_length,
+ obj_desc->buffer.aml_start);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_package_arguments
+ *
+ * PARAMETERS: obj_desc - A valid Package object
+ *
+ * RETURN: Status.
+ *
+ * DESCRIPTION: Get Package length and initializer byte list. This implements
+ * the late evaluation of these attributes.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc);
+
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Get the Package node */
+
+ node = obj_desc->package.node;
+ if (!node) {
+ ACPI_ERROR((AE_INFO,
+ "No pointer back to NS node in package %p",
+ obj_desc));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n"));
+
+ /* Execute the AML code for the term_arg arguments */
+
+ status = acpi_ds_execute_arguments(node, node,
+ obj_desc->package.aml_length,
+ obj_desc->package.aml_start);
+ return_ACPI_STATUS(status);
+}
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_region_arguments
+ *
+ * PARAMETERS: obj_desc - A valid region object
+ *
+ * RETURN: Status.
+ *
+ * DESCRIPTION: Get region address and length. This implements the late
+ * evaluation of these region attributes.
+ *
+ ****************************************************************************/
+
+acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ union acpi_operand_object *extra_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc);
+
+ if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ extra_desc = acpi_ns_get_secondary_object(obj_desc);
+ if (!extra_desc) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Get the Region node */
+
+ node = obj_desc->region.node;
+
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_REGION, node, NULL));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
+ acpi_ut_get_node_name(node),
+ extra_desc->extra.aml_start));
+
+ /* Execute the argument AML */
+
+ status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
+ extra_desc->extra.aml_length,
+ extra_desc->extra.aml_start);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Validate the region address/length via the host OS */
+
+ status = acpi_os_validate_address(obj_desc->region.space_id,
+ obj_desc->region.address,
+ (acpi_size) obj_desc->region.length,
+ acpi_ut_get_node_name(node));
+
+ if (ACPI_FAILURE(status)) {
+ /*
+ * Invalid address/length. We will emit an error message and mark
+ * the region as invalid, so that it will cause an additional error if
+ * it is ever used. Then return AE_OK.
+ */
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During address validation of OpRegion [%4.4s]",
+ node->name.ascii));
+ obj_desc->common.flags |= AOPOBJ_INVALID;
+ status = AE_OK;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_initialize_region
+ *
+ * PARAMETERS: obj_handle - Region namespace node
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Front end to ev_initialize_region
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_initialize_region(acpi_handle obj_handle)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ obj_desc = acpi_ns_get_attached_object(obj_handle);
+
+ /* Namespace is NOT locked */
+
+ status = acpi_ev_initialize_region(obj_desc, FALSE);
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_buffer_field
+ *
+ * PARAMETERS: aml_opcode - create_xxx_field
+ * obj_desc - buffer_field object
+ * buffer_desc - Host Buffer
+ * offset_desc - Offset into buffer
+ * length_desc - Length of field (CREATE_FIELD_OP only)
+ * result_desc - Where to store the result
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform actual initialization of a buffer field
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ds_init_buffer_field(u16 aml_opcode,
+ union acpi_operand_object *obj_desc,
+ union acpi_operand_object *buffer_desc,
+ union acpi_operand_object *offset_desc,
+ union acpi_operand_object *length_desc,
+ union acpi_operand_object *result_desc)
+{
+ u32 offset;
+ u32 bit_offset;
+ u32 bit_count;
+ u8 field_flags;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc);
+
+ /* Host object must be a Buffer */
+
+ if (ACPI_GET_OBJECT_TYPE(buffer_desc) != ACPI_TYPE_BUFFER) {
+ ACPI_ERROR((AE_INFO,
+ "Target of Create Field is not a Buffer object - %s",
+ acpi_ut_get_object_type_name(buffer_desc)));
+
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+
+ /*
+ * The last parameter to all of these opcodes (result_desc) started
+ * out as a name_string, and should therefore now be a NS node
+ * after resolution in acpi_ex_resolve_operands().
+ */
+ if (ACPI_GET_DESCRIPTOR_TYPE(result_desc) != ACPI_DESC_TYPE_NAMED) {
+ ACPI_ERROR((AE_INFO,
+ "(%s) destination not a NS Node [%s]",
+ acpi_ps_get_opcode_name(aml_opcode),
+ acpi_ut_get_descriptor_name(result_desc)));
+
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+
+ offset = (u32) offset_desc->integer.value;
+
+ /*
+ * Setup the Bit offsets and counts, according to the opcode
+ */
+ switch (aml_opcode) {
+ case AML_CREATE_FIELD_OP:
+
+ /* Offset is in bits, count is in bits */
+
+ field_flags = AML_FIELD_ACCESS_BYTE;
+ bit_offset = offset;
+ bit_count = (u32) length_desc->integer.value;
+
+ /* Must have a valid (>0) bit count */
+
+ if (bit_count == 0) {
+ ACPI_ERROR((AE_INFO,
+ "Attempt to CreateField of length zero"));
+ status = AE_AML_OPERAND_VALUE;
+ goto cleanup;
+ }
+ break;
+
+ case AML_CREATE_BIT_FIELD_OP:
+
+ /* Offset is in bits, Field is one bit */
+
+ bit_offset = offset;
+ bit_count = 1;
+ field_flags = AML_FIELD_ACCESS_BYTE;
+ break;
+
+ case AML_CREATE_BYTE_FIELD_OP:
+
+ /* Offset is in bytes, field is one byte */
+
+ bit_offset = 8 * offset;
+ bit_count = 8;
+ field_flags = AML_FIELD_ACCESS_BYTE;
+ break;
+
+ case AML_CREATE_WORD_FIELD_OP:
+
+ /* Offset is in bytes, field is one word */
+
+ bit_offset = 8 * offset;
+ bit_count = 16;
+ field_flags = AML_FIELD_ACCESS_WORD;
+ break;
+
+ case AML_CREATE_DWORD_FIELD_OP:
+
+ /* Offset is in bytes, field is one dword */
+
+ bit_offset = 8 * offset;
+ bit_count = 32;
+ field_flags = AML_FIELD_ACCESS_DWORD;
+ break;
+
+ case AML_CREATE_QWORD_FIELD_OP:
+
+ /* Offset is in bytes, field is one qword */
+
+ bit_offset = 8 * offset;
+ bit_count = 64;
+ field_flags = AML_FIELD_ACCESS_QWORD;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown field creation opcode %02x", aml_opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ /* Entire field must fit within the current length of the buffer */
+
+ if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) {
+ ACPI_ERROR((AE_INFO,
+ "Field [%4.4s] at %d exceeds Buffer [%4.4s] size %d (bits)",
+ acpi_ut_get_node_name(result_desc),
+ bit_offset + bit_count,
+ acpi_ut_get_node_name(buffer_desc->buffer.node),
+ 8 * (u32) buffer_desc->buffer.length));
+ status = AE_AML_BUFFER_LIMIT;
+ goto cleanup;
+ }
+
+ /*
+ * Initialize areas of the field object that are common to all fields
+ * For field_flags, use LOCK_RULE = 0 (NO_LOCK),
+ * UPDATE_RULE = 0 (UPDATE_PRESERVE)
+ */
+ status = acpi_ex_prep_common_field_object(obj_desc, field_flags, 0,
+ bit_offset, bit_count);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ obj_desc->buffer_field.buffer_obj = buffer_desc;
+
+ /* Reference count for buffer_desc inherits obj_desc count */
+
+ buffer_desc->common.reference_count = (u16)
+ (buffer_desc->common.reference_count +
+ obj_desc->common.reference_count);
+
+ cleanup:
+
+ /* Always delete the operands */
+
+ acpi_ut_remove_reference(offset_desc);
+ acpi_ut_remove_reference(buffer_desc);
+
+ if (aml_opcode == AML_CREATE_FIELD_OP) {
+ acpi_ut_remove_reference(length_desc);
+ }
+
+ /* On failure, delete the result descriptor */
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(result_desc); /* Result descriptor */
+ } else {
+ /* Now the address and length are valid for this buffer_field */
+
+ obj_desc->buffer_field.flags |= AOPOBJ_DATA_VALID;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_eval_buffer_field_operands
+ *
+ * PARAMETERS: walk_state - Current walk
+ * Op - A valid buffer_field Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get buffer_field Buffer and Index
+ * Called from acpi_ds_exec_end_op during buffer_field parse tree walk
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ union acpi_parse_object *next_op;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op);
+
+ /*
+ * This is where we evaluate the address and length fields of the
+ * create_xxx_field declaration
+ */
+ node = op->common.node;
+
+ /* next_op points to the op that holds the Buffer */
+
+ next_op = op->common.value.arg;
+
+ /* Evaluate/create the address and length operands */
+
+ status = acpi_ds_create_operands(walk_state, next_op);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Resolve the operands */
+
+ status = acpi_ex_resolve_operands(op->common.aml_opcode,
+ ACPI_WALK_OPERANDS, walk_state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)",
+ acpi_ps_get_opcode_name(op->common.aml_opcode),
+ status));
+
+ return_ACPI_STATUS(status);
+ }
+
+ /* Initialize the Buffer Field */
+
+ if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
+
+ /* NOTE: Slightly different operands for this opcode */
+
+ status =
+ acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc,
+ walk_state->operands[0],
+ walk_state->operands[1],
+ walk_state->operands[2],
+ walk_state->operands[3]);
+ } else {
+ /* All other, create_xxx_field opcodes */
+
+ status =
+ acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc,
+ walk_state->operands[0],
+ walk_state->operands[1], NULL,
+ walk_state->operands[2]);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_eval_region_operands
+ *
+ * PARAMETERS: walk_state - Current walk
+ * Op - A valid region Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get region address and length
+ * Called from acpi_ds_exec_end_op during op_region parse tree walk
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *operand_desc;
+ struct acpi_namespace_node *node;
+ union acpi_parse_object *next_op;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op);
+
+ /*
+ * This is where we evaluate the address and length fields of the
+ * op_region declaration
+ */
+ node = op->common.node;
+
+ /* next_op points to the op that holds the space_iD */
+
+ next_op = op->common.value.arg;
+
+ /* next_op points to address op */
+
+ next_op = next_op->common.next;
+
+ /* Evaluate/create the address and length operands */
+
+ status = acpi_ds_create_operands(walk_state, next_op);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Resolve the length and address operands to numbers */
+
+ status = acpi_ex_resolve_operands(op->common.aml_opcode,
+ ACPI_WALK_OPERANDS, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /*
+ * Get the length operand and save it
+ * (at Top of stack)
+ */
+ operand_desc = walk_state->operands[walk_state->num_operands - 1];
+
+ obj_desc->region.length = (u32) operand_desc->integer.value;
+ acpi_ut_remove_reference(operand_desc);
+
+ /*
+ * Get the address and save it
+ * (at top of stack - 1)
+ */
+ operand_desc = walk_state->operands[walk_state->num_operands - 2];
+
+ obj_desc->region.address = (acpi_physical_address)
+ operand_desc->integer.value;
+ acpi_ut_remove_reference(operand_desc);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
+ obj_desc,
+ ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address),
+ obj_desc->region.length));
+
+ /* Now the address and length are valid for this opregion */
+
+ obj_desc->region.flags |= AOPOBJ_DATA_VALID;
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_eval_table_region_operands
+ *
+ * PARAMETERS: walk_state - Current walk
+ * Op - A valid region Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get region address and length
+ * Called from acpi_ds_exec_end_op during data_table_region parse tree walk
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object **operand;
+ struct acpi_namespace_node *node;
+ union acpi_parse_object *next_op;
+ u32 table_index;
+ struct acpi_table_header *table;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);
+
+ /*
+ * This is where we evaluate the signature_string and oem_iDString
+ * and oem_table_iDString of the data_table_region declaration
+ */
+ node = op->common.node;
+
+ /* next_op points to signature_string op */
+
+ next_op = op->common.value.arg;
+
+ /*
+ * Evaluate/create the signature_string and oem_iDString
+ * and oem_table_iDString operands
+ */
+ status = acpi_ds_create_operands(walk_state, next_op);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Resolve the signature_string and oem_iDString
+ * and oem_table_iDString operands
+ */
+ status = acpi_ex_resolve_operands(op->common.aml_opcode,
+ ACPI_WALK_OPERANDS, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ operand = &walk_state->operands[0];
+
+ /* Find the ACPI table */
+
+ status = acpi_tb_find_table(operand[0]->string.pointer,
+ operand[1]->string.pointer,
+ operand[2]->string.pointer, &table_index);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ acpi_ut_remove_reference(operand[0]);
+ acpi_ut_remove_reference(operand[1]);
+ acpi_ut_remove_reference(operand[2]);
+
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ obj_desc->region.address =
+ (acpi_physical_address) ACPI_TO_INTEGER(table);
+ obj_desc->region.length = table->length;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
+ obj_desc,
+ ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address),
+ obj_desc->region.length));
+
+ /* Now the address and length are valid for this opregion */
+
+ obj_desc->region.flags |= AOPOBJ_DATA_VALID;
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_eval_data_object_operands
+ *
+ * PARAMETERS: walk_state - Current walk
+ * Op - A valid data_object Op object
+ * obj_desc - data_object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get the operands and complete the following data object types:
+ * Buffer, Package.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ union acpi_operand_object *obj_desc)
+{
+ acpi_status status;
+ union acpi_operand_object *arg_desc;
+ u32 length;
+
+ ACPI_FUNCTION_TRACE(ds_eval_data_object_operands);
+
+ /* The first operand (for all of these data objects) is the length */
+
+ /*
+ * Set proper index into operand stack for acpi_ds_obj_stack_push
+ * invoked inside acpi_ds_create_operand.
+ */
+ walk_state->operand_index = walk_state->num_operands;
+
+ status = acpi_ds_create_operand(walk_state, op->common.value.arg, 1);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_ex_resolve_operands(walk_state->opcode,
+ &(walk_state->
+ operands[walk_state->num_operands -
+ 1]), walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Extract length operand */
+
+ arg_desc = walk_state->operands[walk_state->num_operands - 1];
+ length = (u32) arg_desc->integer.value;
+
+ /* Cleanup for length operand */
+
+ status = acpi_ds_obj_stack_pop(1, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ acpi_ut_remove_reference(arg_desc);
+
+ /*
+ * Create the actual data object
+ */
+ switch (op->common.aml_opcode) {
+ case AML_BUFFER_OP:
+
+ status =
+ acpi_ds_build_internal_buffer_obj(walk_state, op, length,
+ &obj_desc);
+ break;
+
+ case AML_PACKAGE_OP:
+ case AML_VAR_PACKAGE_OP:
+
+ status =
+ acpi_ds_build_internal_package_obj(walk_state, op, length,
+ &obj_desc);
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_AML_BAD_OPCODE);
+ }
+
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * Return the object in the walk_state, unless the parent is a package -
+ * in this case, the return object will be stored in the parse tree
+ * for the package.
+ */
+ if ((!op->common.parent) ||
+ ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) &&
+ (op->common.parent->common.aml_opcode !=
+ AML_VAR_PACKAGE_OP)
+ && (op->common.parent->common.aml_opcode != AML_NAME_OP))) {
+ walk_state->result_obj = obj_desc;
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_eval_bank_field_operands
+ *
+ * PARAMETERS: walk_state - Current walk
+ * Op - A valid bank_field Op object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get bank_field bank_value
+ * Called from acpi_ds_exec_end_op during bank_field parse tree walk
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *operand_desc;
+ struct acpi_namespace_node *node;
+ union acpi_parse_object *next_op;
+ union acpi_parse_object *arg;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_eval_bank_field_operands, op);
+
+ /*
+ * This is where we evaluate the bank_value field of the
+ * bank_field declaration
+ */
+
+ /* next_op points to the op that holds the Region */
+
+ next_op = op->common.value.arg;
+
+ /* next_op points to the op that holds the Bank Register */
+
+ next_op = next_op->common.next;
+
+ /* next_op points to the op that holds the Bank Value */
+
+ next_op = next_op->common.next;
+
+ /*
+ * Set proper index into operand stack for acpi_ds_obj_stack_push
+ * invoked inside acpi_ds_create_operand.
+ *
+ * We use walk_state->Operands[0] to store the evaluated bank_value
+ */
+ walk_state->operand_index = 0;
+
+ status = acpi_ds_create_operand(walk_state, next_op, 0);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_ex_resolve_to_value(&walk_state->operands[0], walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS,
+ acpi_ps_get_opcode_name(op->common.aml_opcode), 1);
+ /*
+ * Get the bank_value operand and save it
+ * (at Top of stack)
+ */
+ operand_desc = walk_state->operands[0];
+
+ /* Arg points to the start Bank Field */
+
+ arg = acpi_ps_get_arg(op, 4);
+ while (arg) {
+
+ /* Ignore OFFSET and ACCESSAS terms here */
+
+ if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
+ node = arg->common.node;
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ obj_desc->bank_field.value =
+ (u32) operand_desc->integer.value;
+ }
+
+ /* Move to next field in the list */
+
+ arg = arg->common.next;
+ }
+
+ acpi_ut_remove_reference(operand_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_exec_begin_control_op
+ *
+ * PARAMETERS: walk_list - The list that owns the walk stack
+ * Op - The control Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handles all control ops encountered during control method
+ * execution.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op)
+{
+ acpi_status status = AE_OK;
+ union acpi_generic_state *control_state;
+
+ ACPI_FUNCTION_NAME(ds_exec_begin_control_op);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op,
+ op->common.aml_opcode, walk_state));
+
+ switch (op->common.aml_opcode) {
+ case AML_WHILE_OP:
+
+ /*
+ * If this is an additional iteration of a while loop, continue.
+ * There is no need to allocate a new control state.
+ */
+ if (walk_state->control_state) {
+ if (walk_state->control_state->control.aml_predicate_start
+ == (walk_state->parser_state.aml - 1)) {
+
+ /* Reset the state to start-of-loop */
+
+ walk_state->control_state->common.state =
+ ACPI_CONTROL_CONDITIONAL_EXECUTING;
+ break;
+ }
+ }
+
+ /*lint -fallthrough */
+
+ case AML_IF_OP:
+
+ /*
+ * IF/WHILE: Create a new control state to manage these
+ * constructs. We need to manage these as a stack, in order
+ * to handle nesting.
+ */
+ control_state = acpi_ut_create_control_state();
+ if (!control_state) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+ /*
+ * Save a pointer to the predicate for multiple executions
+ * of a loop
+ */
+ control_state->control.aml_predicate_start =
+ walk_state->parser_state.aml - 1;
+ control_state->control.package_end =
+ walk_state->parser_state.pkg_end;
+ control_state->control.opcode = op->common.aml_opcode;
+
+ /* Push the control state on this walk's control stack */
+
+ acpi_ut_push_generic_state(&walk_state->control_state,
+ control_state);
+ break;
+
+ case AML_ELSE_OP:
+
+ /* Predicate is in the state object */
+ /* If predicate is true, the IF was executed, ignore ELSE part */
+
+ if (walk_state->last_predicate) {
+ status = AE_CTRL_TRUE;
+ }
+
+ break;
+
+ case AML_RETURN_OP:
+
+ break;
+
+ default:
+ break;
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_exec_end_control_op
+ *
+ * PARAMETERS: walk_list - The list that owns the walk stack
+ * Op - The control Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handles all control ops encountered during control method
+ * execution.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
+ union acpi_parse_object * op)
+{
+ acpi_status status = AE_OK;
+ union acpi_generic_state *control_state;
+
+ ACPI_FUNCTION_NAME(ds_exec_end_control_op);
+
+ switch (op->common.aml_opcode) {
+ case AML_IF_OP:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", op));
+
+ /*
+ * Save the result of the predicate in case there is an
+ * ELSE to come
+ */
+ walk_state->last_predicate =
+ (u8) walk_state->control_state->common.value;
+
+ /*
+ * Pop the control state that was created at the start
+ * of the IF and free it
+ */
+ control_state =
+ acpi_ut_pop_generic_state(&walk_state->control_state);
+ acpi_ut_delete_generic_state(control_state);
+ break;
+
+ case AML_ELSE_OP:
+
+ break;
+
+ case AML_WHILE_OP:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op));
+
+ control_state = walk_state->control_state;
+ if (control_state->common.value) {
+
+ /* Predicate was true, the body of the loop was just executed */
+
+ /*
+ * This loop counter mechanism allows the interpreter to escape
+ * possibly infinite loops. This can occur in poorly written AML
+ * when the hardware does not respond within a while loop and the
+ * loop does not implement a timeout.
+ */
+ control_state->control.loop_count++;
+ if (control_state->control.loop_count >
+ ACPI_MAX_LOOP_ITERATIONS) {
+ status = AE_AML_INFINITE_LOOP;
+ break;
+ }
+
+ /*
+ * Go back and evaluate the predicate and maybe execute the loop
+ * another time
+ */
+ status = AE_CTRL_PENDING;
+ walk_state->aml_last_while =
+ control_state->control.aml_predicate_start;
+ break;
+ }
+
+ /* Predicate was false, terminate this while loop */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "[WHILE_OP] termination! Op=%p\n", op));
+
+ /* Pop this control state and free it */
+
+ control_state =
+ acpi_ut_pop_generic_state(&walk_state->control_state);
+ acpi_ut_delete_generic_state(control_state);
+ break;
+
+ case AML_RETURN_OP:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "[RETURN_OP] Op=%p Arg=%p\n", op,
+ op->common.value.arg));
+
+ /*
+ * One optional operand -- the return value
+ * It can be either an immediate operand or a result that
+ * has been bubbled up the tree
+ */
+ if (op->common.value.arg) {
+
+ /* Since we have a real Return(), delete any implicit return */
+
+ acpi_ds_clear_implicit_return(walk_state);
+
+ /* Return statement has an immediate operand */
+
+ status =
+ acpi_ds_create_operands(walk_state,
+ op->common.value.arg);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /*
+ * If value being returned is a Reference (such as
+ * an arg or local), resolve it now because it may
+ * cease to exist at the end of the method.
+ */
+ status =
+ acpi_ex_resolve_to_value(&walk_state->operands[0],
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /*
+ * Get the return value and save as the last result
+ * value. This is the only place where walk_state->return_desc
+ * is set to anything other than zero!
+ */
+ walk_state->return_desc = walk_state->operands[0];
+ } else if (walk_state->result_count) {
+
+ /* Since we have a real Return(), delete any implicit return */
+
+ acpi_ds_clear_implicit_return(walk_state);
+
+ /*
+ * The return value has come from a previous calculation.
+ *
+ * If value being returned is a Reference (such as
+ * an arg or local), resolve it now because it may
+ * cease to exist at the end of the method.
+ *
+ * Allow references created by the Index operator to return unchanged.
+ */
+ if ((ACPI_GET_DESCRIPTOR_TYPE
+ (walk_state->results->results.obj_desc[0]) ==
+ ACPI_DESC_TYPE_OPERAND)
+ &&
+ (ACPI_GET_OBJECT_TYPE
+ (walk_state->results->results.obj_desc[0]) ==
+ ACPI_TYPE_LOCAL_REFERENCE)
+ && ((walk_state->results->results.obj_desc[0])->
+ reference.class != ACPI_REFCLASS_INDEX)) {
+ status =
+ acpi_ex_resolve_to_value(&walk_state->
+ results->results.
+ obj_desc[0],
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ walk_state->return_desc =
+ walk_state->results->results.obj_desc[0];
+ } else {
+ /* No return operand */
+
+ if (walk_state->num_operands) {
+ acpi_ut_remove_reference(walk_state->
+ operands[0]);
+ }
+
+ walk_state->operands[0] = NULL;
+ walk_state->num_operands = 0;
+ walk_state->return_desc = NULL;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Completed RETURN_OP State=%p, RetVal=%p\n",
+ walk_state, walk_state->return_desc));
+
+ /* End the control method execution right now */
+
+ status = AE_CTRL_TERMINATE;
+ break;
+
+ case AML_NOOP_OP:
+
+ /* Just do nothing! */
+ break;
+
+ case AML_BREAK_POINT_OP:
+
+ /* Call up to the OS service layer to handle this */
+
+ status =
+ acpi_os_signal(ACPI_SIGNAL_BREAKPOINT,
+ "Executed AML Breakpoint opcode");
+
+ /* If and when it returns, all done. */
+
+ break;
+
+ case AML_BREAK_OP:
+ case AML_CONTINUE_OP: /* ACPI 2.0 */
+
+ /* Pop and delete control states until we find a while */
+
+ while (walk_state->control_state &&
+ (walk_state->control_state->control.opcode !=
+ AML_WHILE_OP)) {
+ control_state =
+ acpi_ut_pop_generic_state(&walk_state->
+ control_state);
+ acpi_ut_delete_generic_state(control_state);
+ }
+
+ /* No while found? */
+
+ if (!walk_state->control_state) {
+ return (AE_AML_NO_WHILE);
+ }
+
+ /* Was: walk_state->aml_last_while = walk_state->control_state->Control.aml_predicate_start; */
+
+ walk_state->aml_last_while =
+ walk_state->control_state->control.package_end;
+
+ /* Return status depending on opcode */
+
+ if (op->common.aml_opcode == AML_BREAK_OP) {
+ status = AE_CTRL_BREAK;
+ } else {
+ status = AE_CTRL_CONTINUE;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown control opcode=%X Op=%p",
+ op->common.aml_opcode, op));
+
+ status = AE_AML_BAD_OPCODE;
+ break;
+ }
+
+ return (status);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: dsutils - Dispatcher utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdebug.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dsutils")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_clear_implicit_return
+ *
+ * PARAMETERS: walk_state - Current State
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Clear and remove a reference on an implicit return value. Used
+ * to delete "stale" return values (if enabled, the return value
+ * from every operator is saved at least momentarily, in case the
+ * parent method exits.)
+ *
+ ******************************************************************************/
+void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state)
+{
+ ACPI_FUNCTION_NAME(ds_clear_implicit_return);
+
+ /*
+ * Slack must be enabled for this feature
+ */
+ if (!acpi_gbl_enable_interpreter_slack) {
+ return;
+ }
+
+ if (walk_state->implicit_return_obj) {
+ /*
+ * Delete any "stale" implicit return. However, in
+ * complex statements, the implicit return value can be
+ * bubbled up several levels.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Removing reference on stale implicit return obj %p\n",
+ walk_state->implicit_return_obj));
+
+ acpi_ut_remove_reference(walk_state->implicit_return_obj);
+ walk_state->implicit_return_obj = NULL;
+ }
+}
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_do_implicit_return
+ *
+ * PARAMETERS: return_desc - The return value
+ * walk_state - Current State
+ * add_reference - True if a reference should be added to the
+ * return object
+ *
+ * RETURN: TRUE if implicit return enabled, FALSE otherwise
+ *
+ * DESCRIPTION: Implements the optional "implicit return". We save the result
+ * of every ASL operator and control method invocation in case the
+ * parent method exit. Before storing a new return value, we
+ * delete the previous return value.
+ *
+ ******************************************************************************/
+
+u8
+acpi_ds_do_implicit_return(union acpi_operand_object *return_desc,
+ struct acpi_walk_state *walk_state, u8 add_reference)
+{
+ ACPI_FUNCTION_NAME(ds_do_implicit_return);
+
+ /*
+ * Slack must be enabled for this feature, and we must
+ * have a valid return object
+ */
+ if ((!acpi_gbl_enable_interpreter_slack) || (!return_desc)) {
+ return (FALSE);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Result %p will be implicitly returned; Prev=%p\n",
+ return_desc, walk_state->implicit_return_obj));
+
+ /*
+ * Delete any "stale" implicit return value first. However, in
+ * complex statements, the implicit return value can be
+ * bubbled up several levels, so we don't clear the value if it
+ * is the same as the return_desc.
+ */
+ if (walk_state->implicit_return_obj) {
+ if (walk_state->implicit_return_obj == return_desc) {
+ return (TRUE);
+ }
+ acpi_ds_clear_implicit_return(walk_state);
+ }
+
+ /* Save the implicit return value, add a reference if requested */
+
+ walk_state->implicit_return_obj = return_desc;
+ if (add_reference) {
+ acpi_ut_add_reference(return_desc);
+ }
+
+ return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_is_result_used
+ *
+ * PARAMETERS: Op - Current Op
+ * walk_state - Current State
+ *
+ * RETURN: TRUE if result is used, FALSE otherwise
+ *
+ * DESCRIPTION: Check if a result object will be used by the parent
+ *
+ ******************************************************************************/
+
+u8
+acpi_ds_is_result_used(union acpi_parse_object * op,
+ struct acpi_walk_state * walk_state)
+{
+ const struct acpi_opcode_info *parent_info;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op);
+
+ /* Must have both an Op and a Result Object */
+
+ if (!op) {
+ ACPI_ERROR((AE_INFO, "Null Op"));
+ return_UINT8(TRUE);
+ }
+
+ /*
+ * We know that this operator is not a
+ * Return() operator (would not come here.) The following code is the
+ * optional support for a so-called "implicit return". Some AML code
+ * assumes that the last value of the method is "implicitly" returned
+ * to the caller. Just save the last result as the return value.
+ * NOTE: this is optional because the ASL language does not actually
+ * support this behavior.
+ */
+ (void)acpi_ds_do_implicit_return(walk_state->result_obj, walk_state,
+ TRUE);
+
+ /*
+ * Now determine if the parent will use the result
+ *
+ * If there is no parent, or the parent is a scope_op, we are executing
+ * at the method level. An executing method typically has no parent,
+ * since each method is parsed separately. A method invoked externally
+ * via execute_control_method has a scope_op as the parent.
+ */
+ if ((!op->common.parent) ||
+ (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) {
+
+ /* No parent, the return value cannot possibly be used */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "At Method level, result of [%s] not used\n",
+ acpi_ps_get_opcode_name(op->common.
+ aml_opcode)));
+ return_UINT8(FALSE);
+ }
+
+ /* Get info on the parent. The root_op is AML_SCOPE */
+
+ parent_info =
+ acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode);
+ if (parent_info->class == AML_CLASS_UNKNOWN) {
+ ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op));
+ return_UINT8(FALSE);
+ }
+
+ /*
+ * Decide what to do with the result based on the parent. If
+ * the parent opcode will not use the result, delete the object.
+ * Otherwise leave it as is, it will be deleted when it is used
+ * as an operand later.
+ */
+ switch (parent_info->class) {
+ case AML_CLASS_CONTROL:
+
+ switch (op->common.parent->common.aml_opcode) {
+ case AML_RETURN_OP:
+
+ /* Never delete the return value associated with a return opcode */
+
+ goto result_used;
+
+ case AML_IF_OP:
+ case AML_WHILE_OP:
+
+ /*
+ * If we are executing the predicate AND this is the predicate op,
+ * we will use the return value
+ */
+ if ((walk_state->control_state->common.state ==
+ ACPI_CONTROL_PREDICATE_EXECUTING)
+ && (walk_state->control_state->control.
+ predicate_op == op)) {
+ goto result_used;
+ }
+ break;
+
+ default:
+ /* Ignore other control opcodes */
+ break;
+ }
+
+ /* The general control opcode returns no result */
+
+ goto result_not_used;
+
+ case AML_CLASS_CREATE:
+
+ /*
+ * These opcodes allow term_arg(s) as operands and therefore
+ * the operands can be method calls. The result is used.
+ */
+ goto result_used;
+
+ case AML_CLASS_NAMED_OBJECT:
+
+ if ((op->common.parent->common.aml_opcode == AML_REGION_OP) ||
+ (op->common.parent->common.aml_opcode == AML_DATA_REGION_OP)
+ || (op->common.parent->common.aml_opcode == AML_PACKAGE_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_VAR_PACKAGE_OP)
+ || (op->common.parent->common.aml_opcode == AML_BUFFER_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_INT_EVAL_SUBTREE_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_BANK_FIELD_OP)) {
+ /*
+ * These opcodes allow term_arg(s) as operands and therefore
+ * the operands can be method calls. The result is used.
+ */
+ goto result_used;
+ }
+
+ goto result_not_used;
+
+ default:
+
+ /*
+ * In all other cases. the parent will actually use the return
+ * object, so keep it.
+ */
+ goto result_used;
+ }
+
+ result_used:
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Result of [%s] used by Parent [%s] Op=%p\n",
+ acpi_ps_get_opcode_name(op->common.aml_opcode),
+ acpi_ps_get_opcode_name(op->common.parent->common.
+ aml_opcode), op));
+
+ return_UINT8(TRUE);
+
+ result_not_used:
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Result of [%s] not used by Parent [%s] Op=%p\n",
+ acpi_ps_get_opcode_name(op->common.aml_opcode),
+ acpi_ps_get_opcode_name(op->common.parent->common.
+ aml_opcode), op));
+
+ return_UINT8(FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_delete_result_if_not_used
+ *
+ * PARAMETERS: Op - Current parse Op
+ * result_obj - Result of the operation
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Used after interpretation of an opcode. If there is an internal
+ * result descriptor, check if the parent opcode will actually use
+ * this result. If not, delete the result now so that it will
+ * not become orphaned.
+ *
+ ******************************************************************************/
+
+void
+acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
+ union acpi_operand_object *result_obj,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj);
+
+ if (!op) {
+ ACPI_ERROR((AE_INFO, "Null Op"));
+ return_VOID;
+ }
+
+ if (!result_obj) {
+ return_VOID;
+ }
+
+ if (!acpi_ds_is_result_used(op, walk_state)) {
+
+ /* Must pop the result stack (obj_desc should be equal to result_obj) */
+
+ status = acpi_ds_result_pop(&obj_desc, walk_state);
+ if (ACPI_SUCCESS(status)) {
+ acpi_ut_remove_reference(result_obj);
+ }
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_resolve_operands
+ *
+ * PARAMETERS: walk_state - Current walk state with operands on stack
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Resolve all operands to their values. Used to prepare
+ * arguments to a control method invocation (a call from one
+ * method to another.)
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state)
+{
+ u32 i;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state);
+
+ /*
+ * Attempt to resolve each of the valid operands
+ * Method arguments are passed by reference, not by value. This means
+ * that the actual objects are passed, not copies of the objects.
+ */
+ for (i = 0; i < walk_state->num_operands; i++) {
+ status =
+ acpi_ex_resolve_to_value(&walk_state->operands[i],
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_clear_operands
+ *
+ * PARAMETERS: walk_state - Current walk state with operands on stack
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Clear all operands on the current walk state operand stack.
+ *
+ ******************************************************************************/
+
+void acpi_ds_clear_operands(struct acpi_walk_state *walk_state)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state);
+
+ /* Remove a reference on each operand on the stack */
+
+ for (i = 0; i < walk_state->num_operands; i++) {
+ /*
+ * Remove a reference to all operands, including both
+ * "Arguments" and "Targets".
+ */
+ acpi_ut_remove_reference(walk_state->operands[i]);
+ walk_state->operands[i] = NULL;
+ }
+
+ walk_state->num_operands = 0;
+ return_VOID;
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_operand
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * Arg - Parse object for the argument
+ * arg_index - Which argument (zero based)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a parse tree object that is an argument to an AML
+ * opcode to the equivalent interpreter object. This may include
+ * looking up a name or entering a new name into the internal
+ * namespace.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_operand(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *arg, u32 arg_index)
+{
+ acpi_status status = AE_OK;
+ char *name_string;
+ u32 name_length;
+ union acpi_operand_object *obj_desc;
+ union acpi_parse_object *parent_op;
+ u16 opcode;
+ acpi_interpreter_mode interpreter_mode;
+ const struct acpi_opcode_info *op_info;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg);
+
+ /* A valid name must be looked up in the namespace */
+
+ if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
+ (arg->common.value.string) &&
+ !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Getting a name: Arg=%p\n",
+ arg));
+
+ /* Get the entire name string from the AML stream */
+
+ status =
+ acpi_ex_get_name_string(ACPI_TYPE_ANY,
+ arg->common.value.buffer,
+ &name_string, &name_length);
+
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* All prefixes have been handled, and the name is in name_string */
+
+ /*
+ * Special handling for buffer_field declarations. This is a deferred
+ * opcode that unfortunately defines the field name as the last
+ * parameter instead of the first. We get here when we are performing
+ * the deferred execution, so the actual name of the field is already
+ * in the namespace. We don't want to attempt to look it up again
+ * because we may be executing in a different scope than where the
+ * actual opcode exists.
+ */
+ if ((walk_state->deferred_node) &&
+ (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
+ && (arg_index ==
+ (u32) ((walk_state->opcode ==
+ AML_CREATE_FIELD_OP) ? 3 : 2))) {
+ obj_desc =
+ ACPI_CAST_PTR(union acpi_operand_object,
+ walk_state->deferred_node);
+ status = AE_OK;
+ } else { /* All other opcodes */
+
+ /*
+ * Differentiate between a namespace "create" operation
+ * versus a "lookup" operation (IMODE_LOAD_PASS2 vs.
+ * IMODE_EXECUTE) in order to support the creation of
+ * namespace objects during the execution of control methods.
+ */
+ parent_op = arg->common.parent;
+ op_info =
+ acpi_ps_get_opcode_info(parent_op->common.
+ aml_opcode);
+ if ((op_info->flags & AML_NSNODE)
+ && (parent_op->common.aml_opcode !=
+ AML_INT_METHODCALL_OP)
+ && (parent_op->common.aml_opcode != AML_REGION_OP)
+ && (parent_op->common.aml_opcode !=
+ AML_INT_NAMEPATH_OP)) {
+
+ /* Enter name into namespace if not found */
+
+ interpreter_mode = ACPI_IMODE_LOAD_PASS2;
+ } else {
+ /* Return a failure if name not found */
+
+ interpreter_mode = ACPI_IMODE_EXECUTE;
+ }
+
+ status =
+ acpi_ns_lookup(walk_state->scope_info, name_string,
+ ACPI_TYPE_ANY, interpreter_mode,
+ ACPI_NS_SEARCH_PARENT |
+ ACPI_NS_DONT_OPEN_SCOPE, walk_state,
+ ACPI_CAST_INDIRECT_PTR(struct
+ acpi_namespace_node,
+ &obj_desc));
+ /*
+ * The only case where we pass through (ignore) a NOT_FOUND
+ * error is for the cond_ref_of opcode.
+ */
+ if (status == AE_NOT_FOUND) {
+ if (parent_op->common.aml_opcode ==
+ AML_COND_REF_OF_OP) {
+ /*
+ * For the Conditional Reference op, it's OK if
+ * the name is not found; We just need a way to
+ * indicate this to the interpreter, set the
+ * object to the root
+ */
+ obj_desc = ACPI_CAST_PTR(union
+ acpi_operand_object,
+ acpi_gbl_root_node);
+ status = AE_OK;
+ } else {
+ /*
+ * We just plain didn't find it -- which is a
+ * very serious error at this point
+ */
+ status = AE_AML_NAME_NOT_FOUND;
+ }
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(name_string, status);
+ }
+ }
+
+ /* Free the namestring created above */
+
+ ACPI_FREE(name_string);
+
+ /* Check status from the lookup */
+
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Put the resulting object onto the current object stack */
+
+ status = acpi_ds_obj_stack_push(obj_desc, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
+ (obj_desc, walk_state));
+ } else {
+ /* Check for null name case */
+
+ if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
+ !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
+ /*
+ * If the name is null, this means that this is an
+ * optional result parameter that was not specified
+ * in the original ASL. Create a Zero Constant for a
+ * placeholder. (Store to a constant is a Noop.)
+ */
+ opcode = AML_ZERO_OP; /* Has no arguments! */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Null namepath: Arg=%p\n", arg));
+ } else {
+ opcode = arg->common.aml_opcode;
+ }
+
+ /* Get the object type of the argument */
+
+ op_info = acpi_ps_get_opcode_info(opcode);
+ if (op_info->object_type == ACPI_TYPE_INVALID) {
+ return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
+ }
+
+ if ((op_info->flags & AML_HAS_RETVAL)
+ || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Argument previously created, already stacked\n"));
+
+ ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
+ (walk_state->
+ operands[walk_state->num_operands -
+ 1], walk_state));
+
+ /*
+ * Use value that was already previously returned
+ * by the evaluation of this argument
+ */
+ status = acpi_ds_result_pop(&obj_desc, walk_state);
+ if (ACPI_FAILURE(status)) {
+ /*
+ * Only error is underflow, and this indicates
+ * a missing or null operand!
+ */
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Missing or null operand"));
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ /* Create an ACPI_INTERNAL_OBJECT for the argument */
+
+ obj_desc =
+ acpi_ut_create_internal_object(op_info->
+ object_type);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize the new object */
+
+ status =
+ acpi_ds_init_object_from_op(walk_state, arg, opcode,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_delete_object_desc(obj_desc);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Put the operand object on the object stack */
+
+ status = acpi_ds_obj_stack_push(obj_desc, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
+ (obj_desc, walk_state));
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_operands
+ *
+ * PARAMETERS: walk_state - Current state
+ * first_arg - First argument of a parser argument tree
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an operator's arguments from a parse tree format to
+ * namespace objects and place those argument object on the object
+ * stack in preparation for evaluation by the interpreter.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_create_operands(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *first_arg)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *arg;
+ union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS];
+ u32 arg_count = 0;
+ u32 index = walk_state->num_operands;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg);
+
+ /* Get all arguments in the list */
+
+ arg = first_arg;
+ while (arg) {
+ if (index >= ACPI_OBJ_NUM_OPERANDS) {
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ arguments[index] = arg;
+ walk_state->operands[index] = NULL;
+
+ /* Move on to next argument, if any */
+
+ arg = arg->common.next;
+ arg_count++;
+ index++;
+ }
+
+ index--;
+
+ /* It is the appropriate order to get objects from the Result stack */
+
+ for (i = 0; i < arg_count; i++) {
+ arg = arguments[index];
+
+ /* Force the filling of the operand stack in inverse order */
+
+ walk_state->operand_index = (u8) index;
+
+ status = acpi_ds_create_operand(walk_state, arg, index);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ index--;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Arg #%d (%p) done, Arg1=%p\n", index, arg,
+ first_arg));
+ }
+
+ return_ACPI_STATUS(status);
+
+ cleanup:
+ /*
+ * We must undo everything done above; meaning that we must
+ * pop everything off of the operand stack and delete those
+ * objects
+ */
+ acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state);
+
+ ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d", index));
+ return_ACPI_STATUS(status);
+}
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_evaluate_name_path
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk,
+ * the opcode of current operation should be
+ * AML_INT_NAMEPATH_OP
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate the -name_path- parse tree object to the equivalent
+ * interpreter object, convert it to value, if needed, duplicate
+ * it, if needed, and push it onto the current result stack.
+ *
+ ****************************************************************************/
+
+acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *op = walk_state->op;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *new_obj_desc;
+ u8 type;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_evaluate_name_path, walk_state);
+
+ if (!op->common.parent) {
+
+ /* This happens after certain exception processing */
+
+ goto exit;
+ }
+
+ if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
+ (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) ||
+ (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) {
+
+ /* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */
+
+ goto exit;
+ }
+
+ status = acpi_ds_create_operand(walk_state, op, 0);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ if (op->common.flags & ACPI_PARSEOP_TARGET) {
+ new_obj_desc = *operand;
+ goto push_result;
+ }
+
+ type = ACPI_GET_OBJECT_TYPE(*operand);
+
+ status = acpi_ex_resolve_to_value(operand, walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ if (type == ACPI_TYPE_INTEGER) {
+
+ /* It was incremented by acpi_ex_resolve_to_value */
+
+ acpi_ut_remove_reference(*operand);
+
+ status =
+ acpi_ut_copy_iobject_to_iobject(*operand, &new_obj_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+ } else {
+ /*
+ * The object either was anew created or is
+ * a Namespace node - don't decrement it.
+ */
+ new_obj_desc = *operand;
+ }
+
+ /* Cleanup for name-path operand */
+
+ status = acpi_ds_obj_stack_pop(1, walk_state);
+ if (ACPI_FAILURE(status)) {
+ walk_state->result_obj = new_obj_desc;
+ goto exit;
+ }
+
+ push_result:
+
+ walk_state->result_obj = new_obj_desc;
+
+ status = acpi_ds_result_push(walk_state->result_obj, walk_state);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Force to take it from stack */
+
+ op->common.flags |= ACPI_PARSEOP_IN_STACK;
+ }
+
+ exit:
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dswexec - Dispatcher method execution callbacks;
+ * dispatch to interpreter.
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdebug.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dswexec")
+
+/*
+ * Dispatch table for opcode classes
+ */
+static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = {
+ acpi_ex_opcode_0A_0T_1R,
+ acpi_ex_opcode_1A_0T_0R,
+ acpi_ex_opcode_1A_0T_1R,
+ acpi_ex_opcode_1A_1T_0R,
+ acpi_ex_opcode_1A_1T_1R,
+ acpi_ex_opcode_2A_0T_0R,
+ acpi_ex_opcode_2A_0T_1R,
+ acpi_ex_opcode_2A_1T_1R,
+ acpi_ex_opcode_2A_2T_1R,
+ acpi_ex_opcode_3A_0T_0R,
+ acpi_ex_opcode_3A_1T_1R,
+ acpi_ex_opcode_6A_0T_1R
+};
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_predicate_value
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ * result_obj - if non-zero, pop result from result stack
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get the result of a predicate evaluation
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
+ union acpi_operand_object *result_obj)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *local_obj_desc = NULL;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state);
+
+ walk_state->control_state->common.state = 0;
+
+ if (result_obj) {
+ status = acpi_ds_result_pop(&obj_desc, walk_state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not get result from predicate evaluation"));
+
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ status = acpi_ds_create_operand(walk_state, walk_state->op, 0);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status =
+ acpi_ex_resolve_to_value(&walk_state->operands[0],
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ obj_desc = walk_state->operands[0];
+ }
+
+ if (!obj_desc) {
+ ACPI_ERROR((AE_INFO,
+ "No predicate ObjDesc=%p State=%p",
+ obj_desc, walk_state));
+
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ /*
+ * Result of predicate evaluation must be an Integer
+ * object. Implicitly convert the argument if necessary.
+ */
+ status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) {
+ ACPI_ERROR((AE_INFO,
+ "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X",
+ obj_desc, walk_state,
+ ACPI_GET_OBJECT_TYPE(obj_desc)));
+
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+
+ /* Truncate the predicate to 32-bits if necessary */
+
+ acpi_ex_truncate_for32bit_table(local_obj_desc);
+
+ /*
+ * Save the result of the predicate evaluation on
+ * the control stack
+ */
+ if (local_obj_desc->integer.value) {
+ walk_state->control_state->common.value = TRUE;
+ } else {
+ /*
+ * Predicate is FALSE, we will just toss the
+ * rest of the package
+ */
+ walk_state->control_state->common.value = FALSE;
+ status = AE_CTRL_FALSE;
+ }
+
+ /* Predicate can be used for an implicit return value */
+
+ (void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE);
+
+ cleanup:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
+ walk_state->control_state->common.value,
+ walk_state->op));
+
+ /* Break to debugger to display result */
+
+ ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
+ (local_obj_desc, walk_state));
+
+ /*
+ * Delete the predicate result object (we know that
+ * we don't need it anymore)
+ */
+ if (local_obj_desc != obj_desc) {
+ acpi_ut_remove_reference(local_obj_desc);
+ }
+ acpi_ut_remove_reference(obj_desc);
+
+ walk_state->control_state->common.state = ACPI_CONTROL_NORMAL;
+ return_ACPI_STATUS(status);
+}
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_exec_begin_op
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ * out_op - Where to return op if a new one is created
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Descending callback used during the execution of control
+ * methods. This is where most operators and operands are
+ * dispatched to the interpreter.
+ *
+ ****************************************************************************/
+
+acpi_status
+acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object **out_op)
+{
+ union acpi_parse_object *op;
+ acpi_status status = AE_OK;
+ u32 opcode_class;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state);
+
+ op = walk_state->op;
+ if (!op) {
+ status = acpi_ds_load2_begin_op(walk_state, out_op);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+
+ op = *out_op;
+ walk_state->op = op;
+ walk_state->opcode = op->common.aml_opcode;
+ walk_state->op_info =
+ acpi_ps_get_opcode_info(op->common.aml_opcode);
+
+ if (acpi_ns_opens_scope(walk_state->op_info->object_type)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "(%s) Popping scope for Op %p\n",
+ acpi_ut_get_type_name(walk_state->
+ op_info->
+ object_type),
+ op));
+
+ status = acpi_ds_scope_stack_pop(walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+ }
+ }
+
+ if (op == walk_state->origin) {
+ if (out_op) {
+ *out_op = op;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * If the previous opcode was a conditional, this opcode
+ * must be the beginning of the associated predicate.
+ * Save this knowledge in the current scope descriptor
+ */
+ if ((walk_state->control_state) &&
+ (walk_state->control_state->common.state ==
+ ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Exec predicate Op=%p State=%p\n", op,
+ walk_state));
+
+ walk_state->control_state->common.state =
+ ACPI_CONTROL_PREDICATE_EXECUTING;
+
+ /* Save start of predicate */
+
+ walk_state->control_state->control.predicate_op = op;
+ }
+
+ opcode_class = walk_state->op_info->class;
+
+ /* We want to send namepaths to the load code */
+
+ if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+ opcode_class = AML_CLASS_NAMED_OBJECT;
+ }
+
+ /*
+ * Handle the opcode based upon the opcode type
+ */
+ switch (opcode_class) {
+ case AML_CLASS_CONTROL:
+
+ status = acpi_ds_exec_begin_control_op(walk_state, op);
+ break;
+
+ case AML_CLASS_NAMED_OBJECT:
+
+ if (walk_state->walk_type & ACPI_WALK_METHOD) {
+ /*
+ * Found a named object declaration during method execution;
+ * we must enter this object into the namespace. The created
+ * object is temporary and will be deleted upon completion of
+ * the execution of this method.
+ */
+ status = acpi_ds_load2_begin_op(walk_state, NULL);
+ }
+
+ break;
+
+ case AML_CLASS_EXECUTE:
+ case AML_CLASS_CREATE:
+
+ break;
+
+ default:
+ break;
+ }
+
+ /* Nothing to do here during method execution */
+
+ return_ACPI_STATUS(status);
+
+ error_exit:
+ status = acpi_ds_method_error(status, walk_state);
+ return_ACPI_STATUS(status);
+}
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_ds_exec_end_op
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Ascending callback used during the execution of control
+ * methods. The only thing we really need to do here is to
+ * notice the beginning of IF, ELSE, and WHILE blocks.
+ *
+ ****************************************************************************/
+
+acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
+{
+ union acpi_parse_object *op;
+ acpi_status status = AE_OK;
+ u32 op_type;
+ u32 op_class;
+ union acpi_parse_object *next_op;
+ union acpi_parse_object *first_arg;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
+
+ op = walk_state->op;
+ op_type = walk_state->op_info->type;
+ op_class = walk_state->op_info->class;
+
+ if (op_class == AML_CLASS_UNKNOWN) {
+ ACPI_ERROR((AE_INFO, "Unknown opcode %X",
+ op->common.aml_opcode));
+ return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
+ }
+
+ first_arg = op->common.value.arg;
+
+ /* Init the walk state */
+
+ walk_state->num_operands = 0;
+ walk_state->operand_index = 0;
+ walk_state->return_desc = NULL;
+ walk_state->result_obj = NULL;
+
+ /* Call debugger for single step support (DEBUG build only) */
+
+ ACPI_DEBUGGER_EXEC(status =
+ acpi_db_single_step(walk_state, op, op_class));
+ ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);}
+ ) ;
+
+ /* Decode the Opcode Class */
+
+ switch (op_class) {
+ case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */
+
+ if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
+ status = acpi_ds_evaluate_name_path(walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+ }
+ break;
+
+ case AML_CLASS_EXECUTE: /* Most operators with arguments */
+
+ /* Build resolved operand stack */
+
+ status = acpi_ds_create_operands(walk_state, first_arg);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * All opcodes require operand resolution, with the only exceptions
+ * being the object_type and size_of operators.
+ */
+ if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
+
+ /* Resolve all operands */
+
+ status = acpi_ex_resolve_operands(walk_state->opcode,
+ &(walk_state->
+ operands
+ [walk_state->
+ num_operands - 1]),
+ walk_state);
+ }
+
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * Dispatch the request to the appropriate interpreter handler
+ * routine. There is one routine per opcode "type" based upon the
+ * number of opcode arguments and return type.
+ */
+ status =
+ acpi_gbl_op_type_dispatch[op_type] (walk_state);
+ } else {
+ /*
+ * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the
+ * Local is uninitialized.
+ */
+ if ((status == AE_AML_UNINITIALIZED_LOCAL) &&
+ (walk_state->opcode == AML_STORE_OP) &&
+ (walk_state->operands[0]->common.type ==
+ ACPI_TYPE_LOCAL_REFERENCE)
+ && (walk_state->operands[1]->common.type ==
+ ACPI_TYPE_LOCAL_REFERENCE)
+ && (walk_state->operands[0]->reference.class ==
+ walk_state->operands[1]->reference.class)
+ && (walk_state->operands[0]->reference.value ==
+ walk_state->operands[1]->reference.value)) {
+ status = AE_OK;
+ } else {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While resolving operands for [%s]",
+ acpi_ps_get_opcode_name
+ (walk_state->opcode)));
+ }
+ }
+
+ /* Always delete the argument objects and clear the operand stack */
+
+ acpi_ds_clear_operands(walk_state);
+
+ /*
+ * If a result object was returned from above, push it on the
+ * current result stack
+ */
+ if (ACPI_SUCCESS(status) && walk_state->result_obj) {
+ status =
+ acpi_ds_result_push(walk_state->result_obj,
+ walk_state);
+ }
+ break;
+
+ default:
+
+ switch (op_type) {
+ case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */
+
+ /* 1 Operand, 0 external_result, 0 internal_result */
+
+ status = acpi_ds_exec_end_control_op(walk_state, op);
+
+ break;
+
+ case AML_TYPE_METHOD_CALL:
+
+ /*
+ * If the method is referenced from within a package
+ * declaration, it is not a invocation of the method, just
+ * a reference to it.
+ */
+ if ((op->asl.parent) &&
+ ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP)
+ || (op->asl.parent->asl.aml_opcode ==
+ AML_VAR_PACKAGE_OP))) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Method Reference in a Package, Op=%p\n",
+ op));
+
+ op->common.node =
+ (struct acpi_namespace_node *)op->asl.value.
+ arg->asl.node;
+ acpi_ut_add_reference(op->asl.value.arg->asl.
+ node->object);
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Method invocation, Op=%p\n", op));
+
+ /*
+ * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains
+ * the method Node pointer
+ */
+ /* next_op points to the op that holds the method name */
+
+ next_op = first_arg;
+
+ /* next_op points to first argument op */
+
+ next_op = next_op->common.next;
+
+ /*
+ * Get the method's arguments and put them on the operand stack
+ */
+ status = acpi_ds_create_operands(walk_state, next_op);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+
+ /*
+ * Since the operands will be passed to another control method,
+ * we must resolve all local references here (Local variables,
+ * arguments to *this* method, etc.)
+ */
+ status = acpi_ds_resolve_operands(walk_state);
+ if (ACPI_FAILURE(status)) {
+
+ /* On error, clear all resolved operands */
+
+ acpi_ds_clear_operands(walk_state);
+ break;
+ }
+
+ /*
+ * Tell the walk loop to preempt this running method and
+ * execute the new method
+ */
+ status = AE_CTRL_TRANSFER;
+
+ /*
+ * Return now; we don't want to disturb anything,
+ * especially the operand count!
+ */
+ return_ACPI_STATUS(status);
+
+ case AML_TYPE_CREATE_FIELD:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Executing CreateField Buffer/Index Op=%p\n",
+ op));
+
+ status = acpi_ds_load2_end_op(walk_state);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+
+ status =
+ acpi_ds_eval_buffer_field_operands(walk_state, op);
+ break;
+
+ case AML_TYPE_CREATE_OBJECT:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Executing CreateObject (Buffer/Package) Op=%p\n",
+ op));
+
+ switch (op->common.parent->common.aml_opcode) {
+ case AML_NAME_OP:
+
+ /*
+ * Put the Node on the object stack (Contains the ACPI Name
+ * of this object)
+ */
+ walk_state->operands[0] =
+ (void *)op->common.parent->common.node;
+ walk_state->num_operands = 1;
+
+ status = acpi_ds_create_node(walk_state,
+ op->common.parent->
+ common.node,
+ op->common.parent);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+
+ /* Fall through */
+ /*lint -fallthrough */
+
+ case AML_INT_EVAL_SUBTREE_OP:
+
+ status =
+ acpi_ds_eval_data_object_operands
+ (walk_state, op,
+ acpi_ns_get_attached_object(op->common.
+ parent->common.
+ node));
+ break;
+
+ default:
+
+ status =
+ acpi_ds_eval_data_object_operands
+ (walk_state, op, NULL);
+ break;
+ }
+
+ /*
+ * If a result object was returned from above, push it on the
+ * current result stack
+ */
+ if (walk_state->result_obj) {
+ status =
+ acpi_ds_result_push(walk_state->result_obj,
+ walk_state);
+ }
+ break;
+
+ case AML_TYPE_NAMED_FIELD:
+ case AML_TYPE_NAMED_COMPLEX:
+ case AML_TYPE_NAMED_SIMPLE:
+ case AML_TYPE_NAMED_NO_OBJ:
+
+ status = acpi_ds_load2_end_op(walk_state);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+
+ if (op->common.aml_opcode == AML_REGION_OP) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Executing OpRegion Address/Length Op=%p\n",
+ op));
+
+ status =
+ acpi_ds_eval_region_operands(walk_state,
+ op);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Executing DataTableRegion Strings Op=%p\n",
+ op));
+
+ status =
+ acpi_ds_eval_table_region_operands
+ (walk_state, op);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ } else if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Executing BankField Op=%p\n",
+ op));
+
+ status =
+ acpi_ds_eval_bank_field_operands(walk_state,
+ op);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ }
+ break;
+
+ case AML_TYPE_UNDEFINED:
+
+ ACPI_ERROR((AE_INFO,
+ "Undefined opcode type Op=%p", op));
+ return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
+
+ case AML_TYPE_BOGUS:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Internal opcode=%X type Op=%p\n",
+ walk_state->opcode, op));
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p",
+ op_class, op_type, op->common.aml_opcode,
+ op));
+
+ status = AE_NOT_IMPLEMENTED;
+ break;
+ }
+ }
+
+ /*
+ * ACPI 2.0 support for 64-bit integers: Truncate numeric
+ * result value if we are executing from a 32-bit ACPI table
+ */
+ acpi_ex_truncate_for32bit_table(walk_state->result_obj);
+
+ /*
+ * Check if we just completed the evaluation of a
+ * conditional predicate
+ */
+ if ((ACPI_SUCCESS(status)) &&
+ (walk_state->control_state) &&
+ (walk_state->control_state->common.state ==
+ ACPI_CONTROL_PREDICATE_EXECUTING) &&
+ (walk_state->control_state->control.predicate_op == op)) {
+ status =
+ acpi_ds_get_predicate_value(walk_state,
+ walk_state->result_obj);
+ walk_state->result_obj = NULL;
+ }
+
+ cleanup:
+
+ if (walk_state->result_obj) {
+
+ /* Break to debugger to display result */
+
+ ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
+ (walk_state->result_obj, walk_state));
+
+ /*
+ * Delete the result op if and only if:
+ * Parent will not use the result -- such as any
+ * non-nested type2 op in a method (parent will be method)
+ */
+ acpi_ds_delete_result_if_not_used(op, walk_state->result_obj,
+ walk_state);
+ }
+#ifdef _UNDER_DEVELOPMENT
+
+ if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) {
+ acpi_db_method_end(walk_state);
+ }
+#endif
+
+ /* Invoke exception handler on error */
+
+ if (ACPI_FAILURE(status)) {
+ status = acpi_ds_method_error(status, walk_state);
+ }
+
+ /* Always clear the object stack */
+
+ walk_state->num_operands = 0;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dswload - Dispatcher namespace load callbacks
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+
+#ifdef ACPI_ASL_COMPILER
+#include <acpi/acdisasm.h>
+#endif
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dswload")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_callbacks
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ * pass_number - 1, 2, or 3
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Init walk state callbacks
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number)
+{
+
+ switch (pass_number) {
+ case 1:
+ walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
+ ACPI_PARSE_DELETE_TREE;
+ walk_state->descending_callback = acpi_ds_load1_begin_op;
+ walk_state->ascending_callback = acpi_ds_load1_end_op;
+ break;
+
+ case 2:
+ walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
+ ACPI_PARSE_DELETE_TREE;
+ walk_state->descending_callback = acpi_ds_load2_begin_op;
+ walk_state->ascending_callback = acpi_ds_load2_end_op;
+ break;
+
+ case 3:
+#ifndef ACPI_NO_METHOD_EXECUTION
+ walk_state->parse_flags |= ACPI_PARSE_EXECUTE |
+ ACPI_PARSE_DELETE_TREE;
+ walk_state->descending_callback = acpi_ds_exec_begin_op;
+ walk_state->ascending_callback = acpi_ds_exec_end_op;
+#endif
+ break;
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_load1_begin_op
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ * out_op - Where to return op if a new one is created
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Descending callback used during the loading of ACPI tables.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
+ union acpi_parse_object ** out_op)
+{
+ union acpi_parse_object *op;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ acpi_object_type object_type;
+ char *path;
+ u32 flags;
+
+ ACPI_FUNCTION_TRACE(ds_load1_begin_op);
+
+ op = walk_state->op;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
+ walk_state));
+
+ /* We are only interested in opcodes that have an associated name */
+
+ if (op) {
+ if (!(walk_state->op_info->flags & AML_NAMED)) {
+ *out_op = op;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Check if this object has already been installed in the namespace */
+
+ if (op->common.node) {
+ *out_op = op;
+ return_ACPI_STATUS(AE_OK);
+ }
+ }
+
+ path = acpi_ps_get_next_namestring(&walk_state->parser_state);
+
+ /* Map the raw opcode into an internal object type */
+
+ object_type = walk_state->op_info->object_type;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "State=%p Op=%p [%s]\n", walk_state, op,
+ acpi_ut_get_type_name(object_type)));
+
+ switch (walk_state->opcode) {
+ case AML_SCOPE_OP:
+
+ /*
+ * The target name of the Scope() operator must exist at this point so
+ * that we can actually open the scope to enter new names underneath it.
+ * Allow search-to-root for single namesegs.
+ */
+ status =
+ acpi_ns_lookup(walk_state->scope_info, path, object_type,
+ ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
+ walk_state, &(node));
+#ifdef ACPI_ASL_COMPILER
+ if (status == AE_NOT_FOUND) {
+ /*
+ * Table disassembly:
+ * Target of Scope() not found. Generate an External for it, and
+ * insert the name into the namespace.
+ */
+ acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0);
+ status =
+ acpi_ns_lookup(walk_state->scope_info, path,
+ object_type, ACPI_IMODE_LOAD_PASS1,
+ ACPI_NS_SEARCH_PARENT, walk_state,
+ &node);
+ }
+#endif
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(path, status);
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Check to make sure that the target is
+ * one of the opcodes that actually opens a scope
+ */
+ switch (node->type) {
+ case ACPI_TYPE_ANY:
+ case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+
+ /* These are acceptable types */
+ break;
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * These types we will allow, but we will change the type. This
+ * enables some existing code of the form:
+ *
+ * Name (DEB, 0)
+ * Scope (DEB) { ... }
+ *
+ * Note: silently change the type here. On the second pass, we will report
+ * a warning
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
+ path,
+ acpi_ut_get_type_name(node->type)));
+
+ node->type = ACPI_TYPE_ANY;
+ walk_state->scope_info->common.value = ACPI_TYPE_ANY;
+ break;
+
+ default:
+
+ /* All other types are an error */
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)",
+ acpi_ut_get_type_name(node->type), path));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ break;
+
+ default:
+ /*
+ * For all other named opcodes, we will enter the name into
+ * the namespace.
+ *
+ * Setup the search flags.
+ * Since we are entering a name into the namespace, we do not want to
+ * enable the search-to-root upsearch.
+ *
+ * There are only two conditions where it is acceptable that the name
+ * already exists:
+ * 1) the Scope() operator can reopen a scoping object that was
+ * previously defined (Scope, Method, Device, etc.)
+ * 2) Whenever we are parsing a deferred opcode (op_region, Buffer,
+ * buffer_field, or Package), the name of the object is already
+ * in the namespace.
+ */
+ if (walk_state->deferred_node) {
+
+ /* This name is already in the namespace, get the node */
+
+ node = walk_state->deferred_node;
+ status = AE_OK;
+ break;
+ }
+
+ /*
+ * If we are executing a method, do not create any namespace objects
+ * during the load phase, only during execution.
+ */
+ if (walk_state->method_node) {
+ node = NULL;
+ status = AE_OK;
+ break;
+ }
+
+ flags = ACPI_NS_NO_UPSEARCH;
+ if ((walk_state->opcode != AML_SCOPE_OP) &&
+ (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) {
+ flags |= ACPI_NS_ERROR_IF_FOUND;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "[%s] Cannot already exist\n",
+ acpi_ut_get_type_name(object_type)));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "[%s] Both Find or Create allowed\n",
+ acpi_ut_get_type_name(object_type)));
+ }
+
+ /*
+ * Enter the named type into the internal namespace. We enter the name
+ * as we go downward in the parse tree. Any necessary subobjects that
+ * involve arguments to the opcode must be created as we go back up the
+ * parse tree later.
+ */
+ status =
+ acpi_ns_lookup(walk_state->scope_info, path, object_type,
+ ACPI_IMODE_LOAD_PASS1, flags, walk_state,
+ &node);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_ALREADY_EXISTS) {
+
+ /* The name already exists in this scope */
+
+ if (node->flags & ANOBJ_IS_EXTERNAL) {
+ /*
+ * Allow one create on an object or segment that was
+ * previously declared External
+ */
+ node->flags &= ~ANOBJ_IS_EXTERNAL;
+ node->type = (u8) object_type;
+
+ /* Just retyped a node, probably will need to open a scope */
+
+ if (acpi_ns_opens_scope(object_type)) {
+ status =
+ acpi_ds_scope_stack_push
+ (node, object_type,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS
+ (status);
+ }
+ }
+
+ status = AE_OK;
+ }
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(path, status);
+ return_ACPI_STATUS(status);
+ }
+ }
+ break;
+ }
+
+ /* Common exit */
+
+ if (!op) {
+
+ /* Create a new op */
+
+ op = acpi_ps_alloc_op(walk_state->opcode);
+ if (!op) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ }
+
+ /* Initialize the op */
+
+#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
+ op->named.path = ACPI_CAST_PTR(u8, path);
+#endif
+
+ if (node) {
+ /*
+ * Put the Node in the "op" object that the parser uses, so we
+ * can get it again quickly when this scope is closed
+ */
+ op->common.node = node;
+ op->named.name = node->name.integer;
+ }
+
+ acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state),
+ op);
+ *out_op = op;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_load1_end_op
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Ascending callback used during the loading of the namespace,
+ * both control methods and everything else.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
+{
+ union acpi_parse_object *op;
+ acpi_object_type object_type;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ds_load1_end_op);
+
+ op = walk_state->op;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
+ walk_state));
+
+ /* We are only interested in opcodes that have an associated name */
+
+ if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Get the object type to determine if we should pop the scope */
+
+ object_type = walk_state->op_info->object_type;
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+ if (walk_state->op_info->flags & AML_FIELD) {
+ /*
+ * If we are executing a method, do not create any namespace objects
+ * during the load phase, only during execution.
+ */
+ if (!walk_state->method_node) {
+ if (walk_state->opcode == AML_FIELD_OP ||
+ walk_state->opcode == AML_BANK_FIELD_OP ||
+ walk_state->opcode == AML_INDEX_FIELD_OP) {
+ status =
+ acpi_ds_init_field_objects(op, walk_state);
+ }
+ }
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * If we are executing a method, do not create any namespace objects
+ * during the load phase, only during execution.
+ */
+ if (!walk_state->method_node) {
+ if (op->common.aml_opcode == AML_REGION_OP) {
+ status =
+ acpi_ex_create_region(op->named.data,
+ op->named.length,
+ (acpi_adr_space_type) ((op->
+ common.
+ value.
+ arg)->
+ common.
+ value.
+ integer),
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
+ status =
+ acpi_ex_create_region(op->named.data,
+ op->named.length,
+ REGION_DATA_TABLE,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ }
+#endif
+
+ if (op->common.aml_opcode == AML_NAME_OP) {
+
+ /* For Name opcode, get the object type from the argument */
+
+ if (op->common.value.arg) {
+ object_type = (acpi_ps_get_opcode_info((op->common.
+ value.arg)->
+ common.
+ aml_opcode))->
+ object_type;
+
+ /* Set node type if we have a namespace node */
+
+ if (op->common.node) {
+ op->common.node->type = (u8) object_type;
+ }
+ }
+ }
+
+ /*
+ * If we are executing a method, do not create any namespace objects
+ * during the load phase, only during execution.
+ */
+ if (!walk_state->method_node) {
+ if (op->common.aml_opcode == AML_METHOD_OP) {
+ /*
+ * method_op pkg_length name_string method_flags term_list
+ *
+ * Note: We must create the method node/object pair as soon as we
+ * see the method declaration. This allows later pass1 parsing
+ * of invocations of the method (need to know the number of
+ * arguments.)
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
+ walk_state, op, op->named.node));
+
+ if (!acpi_ns_get_attached_object(op->named.node)) {
+ walk_state->operands[0] =
+ ACPI_CAST_PTR(void, op->named.node);
+ walk_state->num_operands = 1;
+
+ status =
+ acpi_ds_create_operands(walk_state,
+ op->common.value.
+ arg);
+ if (ACPI_SUCCESS(status)) {
+ status =
+ acpi_ex_create_method(op->named.
+ data,
+ op->named.
+ length,
+ walk_state);
+ }
+
+ walk_state->operands[0] = NULL;
+ walk_state->num_operands = 0;
+
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ }
+ }
+
+ /* Pop the scope stack (only if loading a table) */
+
+ if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "(%s): Popping scope for Op %p\n",
+ acpi_ut_get_type_name(object_type), op));
+
+ status = acpi_ds_scope_stack_pop(walk_state);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_load2_begin_op
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ * out_op - Wher to return op if a new one is created
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Descending callback used during the loading of ACPI tables.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object **out_op)
+{
+ union acpi_parse_object *op;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ acpi_object_type object_type;
+ char *buffer_ptr;
+ u32 flags;
+
+ ACPI_FUNCTION_TRACE(ds_load2_begin_op);
+
+ op = walk_state->op;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
+ walk_state));
+
+ if (op) {
+ if ((walk_state->control_state) &&
+ (walk_state->control_state->common.state ==
+ ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
+
+ /* We are executing a while loop outside of a method */
+
+ status = acpi_ds_exec_begin_op(walk_state, out_op);
+ return_ACPI_STATUS(status);
+ }
+
+ /* We only care about Namespace opcodes here */
+
+ if ((!(walk_state->op_info->flags & AML_NSOPCODE) &&
+ (walk_state->opcode != AML_INT_NAMEPATH_OP)) ||
+ (!(walk_state->op_info->flags & AML_NAMED))) {
+#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
+ if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
+ (walk_state->op_info->class == AML_CLASS_CONTROL)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Begin/EXEC: %s (fl %8.8X)\n",
+ walk_state->op_info->name,
+ walk_state->op_info->flags));
+
+ /* Executing a type1 or type2 opcode outside of a method */
+
+ status =
+ acpi_ds_exec_begin_op(walk_state, out_op);
+ return_ACPI_STATUS(status);
+ }
+#endif
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Get the name we are going to enter or lookup in the namespace */
+
+ if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
+
+ /* For Namepath op, get the path string */
+
+ buffer_ptr = op->common.value.string;
+ if (!buffer_ptr) {
+
+ /* No name, just exit */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+ } else {
+ /* Get name from the op */
+
+ buffer_ptr = ACPI_CAST_PTR(char, &op->named.name);
+ }
+ } else {
+ /* Get the namestring from the raw AML */
+
+ buffer_ptr =
+ acpi_ps_get_next_namestring(&walk_state->parser_state);
+ }
+
+ /* Map the opcode into an internal object type */
+
+ object_type = walk_state->op_info->object_type;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "State=%p Op=%p Type=%X\n", walk_state, op,
+ object_type));
+
+ switch (walk_state->opcode) {
+ case AML_FIELD_OP:
+ case AML_BANK_FIELD_OP:
+ case AML_INDEX_FIELD_OP:
+
+ node = NULL;
+ status = AE_OK;
+ break;
+
+ case AML_INT_NAMEPATH_OP:
+ /*
+ * The name_path is an object reference to an existing object.
+ * Don't enter the name into the namespace, but look it up
+ * for use later.
+ */
+ status =
+ acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
+ object_type, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT, walk_state, &(node));
+ break;
+
+ case AML_SCOPE_OP:
+ /*
+ * The Path is an object reference to an existing object.
+ * Don't enter the name into the namespace, but look it up
+ * for use later.
+ */
+ status =
+ acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
+ object_type, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT, walk_state, &(node));
+ if (ACPI_FAILURE(status)) {
+#ifdef ACPI_ASL_COMPILER
+ if (status == AE_NOT_FOUND) {
+ status = AE_OK;
+ } else {
+ ACPI_ERROR_NAMESPACE(buffer_ptr, status);
+ }
+#else
+ ACPI_ERROR_NAMESPACE(buffer_ptr, status);
+#endif
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * We must check to make sure that the target is
+ * one of the opcodes that actually opens a scope
+ */
+ switch (node->type) {
+ case ACPI_TYPE_ANY:
+ case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+
+ /* These are acceptable types */
+ break;
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * These types we will allow, but we will change the type. This
+ * enables some existing code of the form:
+ *
+ * Name (DEB, 0)
+ * Scope (DEB) { ... }
+ */
+ ACPI_WARNING((AE_INFO,
+ "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
+ buffer_ptr,
+ acpi_ut_get_type_name(node->type)));
+
+ node->type = ACPI_TYPE_ANY;
+ walk_state->scope_info->common.value = ACPI_TYPE_ANY;
+ break;
+
+ default:
+
+ /* All other types are an error */
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid type (%s) for target of Scope operator [%4.4s]",
+ acpi_ut_get_type_name(node->type),
+ buffer_ptr));
+
+ return (AE_AML_OPERAND_TYPE);
+ }
+ break;
+
+ default:
+
+ /* All other opcodes */
+
+ if (op && op->common.node) {
+
+ /* This op/node was previously entered into the namespace */
+
+ node = op->common.node;
+
+ if (acpi_ns_opens_scope(object_type)) {
+ status =
+ acpi_ds_scope_stack_push(node, object_type,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Enter the named type into the internal namespace. We enter the name
+ * as we go downward in the parse tree. Any necessary subobjects that
+ * involve arguments to the opcode must be created as we go back up the
+ * parse tree later.
+ *
+ * Note: Name may already exist if we are executing a deferred opcode.
+ */
+ if (walk_state->deferred_node) {
+
+ /* This name is already in the namespace, get the node */
+
+ node = walk_state->deferred_node;
+ status = AE_OK;
+ break;
+ }
+
+ flags = ACPI_NS_NO_UPSEARCH;
+ if (walk_state->pass_number == ACPI_IMODE_EXECUTE) {
+
+ /* Execution mode, node cannot already exist, node is temporary */
+
+ flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY);
+ }
+
+ /* Add new entry or lookup existing entry */
+
+ status =
+ acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
+ object_type, ACPI_IMODE_LOAD_PASS2, flags,
+ walk_state, &node);
+
+ if (ACPI_SUCCESS(status) && (flags & ACPI_NS_TEMPORARY)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "***New Node [%4.4s] %p is temporary\n",
+ acpi_ut_get_node_name(node), node));
+ }
+ break;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(buffer_ptr, status);
+ return_ACPI_STATUS(status);
+ }
+
+ if (!op) {
+
+ /* Create a new op */
+
+ op = acpi_ps_alloc_op(walk_state->opcode);
+ if (!op) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize the new op */
+
+ if (node) {
+ op->named.name = node->name.integer;
+ }
+ *out_op = op;
+ }
+
+ /*
+ * Put the Node in the "op" object that the parser uses, so we
+ * can get it again quickly when this scope is closed
+ */
+ op->common.node = node;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_load2_end_op
+ *
+ * PARAMETERS: walk_state - Current state of the parse tree walk
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Ascending callback used during the loading of the namespace,
+ * both control methods and everything else.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
+{
+ union acpi_parse_object *op;
+ acpi_status status = AE_OK;
+ acpi_object_type object_type;
+ struct acpi_namespace_node *node;
+ union acpi_parse_object *arg;
+ struct acpi_namespace_node *new_node;
+#ifndef ACPI_NO_METHOD_EXECUTION
+ u32 i;
+ u8 region_space;
+#endif
+
+ ACPI_FUNCTION_TRACE(ds_load2_end_op);
+
+ op = walk_state->op;
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
+ walk_state->op_info->name, op, walk_state));
+
+ /* Check if opcode had an associated namespace object */
+
+ if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
+#ifndef ACPI_NO_METHOD_EXECUTION
+#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
+ /* No namespace object. Executable opcode? */
+
+ if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
+ (walk_state->op_info->class == AML_CLASS_CONTROL)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "End/EXEC: %s (fl %8.8X)\n",
+ walk_state->op_info->name,
+ walk_state->op_info->flags));
+
+ /* Executing a type1 or type2 opcode outside of a method */
+
+ status = acpi_ds_exec_end_op(walk_state);
+ return_ACPI_STATUS(status);
+ }
+#endif
+#endif
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ if (op->common.aml_opcode == AML_SCOPE_OP) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Ending scope Op=%p State=%p\n", op,
+ walk_state));
+ }
+
+ object_type = walk_state->op_info->object_type;
+
+ /*
+ * Get the Node/name from the earlier lookup
+ * (It was saved in the *op structure)
+ */
+ node = op->common.node;
+
+ /*
+ * Put the Node on the object stack (Contains the ACPI Name of
+ * this object)
+ */
+ walk_state->operands[0] = (void *)node;
+ walk_state->num_operands = 1;
+
+ /* Pop the scope stack */
+
+ if (acpi_ns_opens_scope(object_type) &&
+ (op->common.aml_opcode != AML_INT_METHODCALL_OP)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "(%s) Popping scope for Op %p\n",
+ acpi_ut_get_type_name(object_type), op));
+
+ status = acpi_ds_scope_stack_pop(walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+ }
+
+ /*
+ * Named operations are as follows:
+ *
+ * AML_ALIAS
+ * AML_BANKFIELD
+ * AML_CREATEBITFIELD
+ * AML_CREATEBYTEFIELD
+ * AML_CREATEDWORDFIELD
+ * AML_CREATEFIELD
+ * AML_CREATEQWORDFIELD
+ * AML_CREATEWORDFIELD
+ * AML_DATA_REGION
+ * AML_DEVICE
+ * AML_EVENT
+ * AML_FIELD
+ * AML_INDEXFIELD
+ * AML_METHOD
+ * AML_METHODCALL
+ * AML_MUTEX
+ * AML_NAME
+ * AML_NAMEDFIELD
+ * AML_OPREGION
+ * AML_POWERRES
+ * AML_PROCESSOR
+ * AML_SCOPE
+ * AML_THERMALZONE
+ */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
+ acpi_ps_get_opcode_name(op->common.aml_opcode),
+ walk_state, op, node));
+
+ /* Decode the opcode */
+
+ arg = op->common.value.arg;
+
+ switch (walk_state->op_info->type) {
+#ifndef ACPI_NO_METHOD_EXECUTION
+
+ case AML_TYPE_CREATE_FIELD:
+ /*
+ * Create the field object, but the field buffer and index must
+ * be evaluated later during the execution phase
+ */
+ status = acpi_ds_create_buffer_field(op, walk_state);
+ break;
+
+ case AML_TYPE_NAMED_FIELD:
+ /*
+ * If we are executing a method, initialize the field
+ */
+ if (walk_state->method_node) {
+ status = acpi_ds_init_field_objects(op, walk_state);
+ }
+
+ switch (op->common.aml_opcode) {
+ case AML_INDEX_FIELD_OP:
+
+ status =
+ acpi_ds_create_index_field(op,
+ (acpi_handle) arg->
+ common.node, walk_state);
+ break;
+
+ case AML_BANK_FIELD_OP:
+
+ status =
+ acpi_ds_create_bank_field(op, arg->common.node,
+ walk_state);
+ break;
+
+ case AML_FIELD_OP:
+
+ status =
+ acpi_ds_create_field(op, arg->common.node,
+ walk_state);
+ break;
+
+ default:
+ /* All NAMED_FIELD opcodes must be handled above */
+ break;
+ }
+ break;
+
+ case AML_TYPE_NAMED_SIMPLE:
+
+ status = acpi_ds_create_operands(walk_state, arg);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ switch (op->common.aml_opcode) {
+ case AML_PROCESSOR_OP:
+
+ status = acpi_ex_create_processor(walk_state);
+ break;
+
+ case AML_POWER_RES_OP:
+
+ status = acpi_ex_create_power_resource(walk_state);
+ break;
+
+ case AML_MUTEX_OP:
+
+ status = acpi_ex_create_mutex(walk_state);
+ break;
+
+ case AML_EVENT_OP:
+
+ status = acpi_ex_create_event(walk_state);
+ break;
+
+ case AML_ALIAS_OP:
+
+ status = acpi_ex_create_alias(walk_state);
+ break;
+
+ default:
+ /* Unknown opcode */
+
+ status = AE_OK;
+ goto cleanup;
+ }
+
+ /* Delete operands */
+
+ for (i = 1; i < walk_state->num_operands; i++) {
+ acpi_ut_remove_reference(walk_state->operands[i]);
+ walk_state->operands[i] = NULL;
+ }
+
+ break;
+#endif /* ACPI_NO_METHOD_EXECUTION */
+
+ case AML_TYPE_NAMED_COMPLEX:
+
+ switch (op->common.aml_opcode) {
+#ifndef ACPI_NO_METHOD_EXECUTION
+ case AML_REGION_OP:
+ case AML_DATA_REGION_OP:
+
+ if (op->common.aml_opcode == AML_REGION_OP) {
+ region_space = (acpi_adr_space_type)
+ ((op->common.value.arg)->common.value.
+ integer);
+ } else {
+ region_space = REGION_DATA_TABLE;
+ }
+
+ /*
+ * If we are executing a method, initialize the region
+ */
+ if (walk_state->method_node) {
+ status =
+ acpi_ex_create_region(op->named.data,
+ op->named.length,
+ region_space,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ /*
+ * The op_region is not fully parsed at this time. Only valid
+ * argument is the space_id. (We must save the address of the
+ * AML of the address and length operands)
+ */
+
+ /*
+ * If we have a valid region, initialize it
+ * Namespace is NOT locked at this point.
+ */
+ status =
+ acpi_ev_initialize_region
+ (acpi_ns_get_attached_object(node), FALSE);
+ if (ACPI_FAILURE(status)) {
+ /*
+ * If AE_NOT_EXIST is returned, it is not fatal
+ * because many regions get created before a handler
+ * is installed for said region.
+ */
+ if (AE_NOT_EXIST == status) {
+ status = AE_OK;
+ }
+ }
+ break;
+
+ case AML_NAME_OP:
+
+ status = acpi_ds_create_node(walk_state, node, op);
+ break;
+
+ case AML_METHOD_OP:
+ /*
+ * method_op pkg_length name_string method_flags term_list
+ *
+ * Note: We must create the method node/object pair as soon as we
+ * see the method declaration. This allows later pass1 parsing
+ * of invocations of the method (need to know the number of
+ * arguments.)
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
+ walk_state, op, op->named.node));
+
+ if (!acpi_ns_get_attached_object(op->named.node)) {
+ walk_state->operands[0] =
+ ACPI_CAST_PTR(void, op->named.node);
+ walk_state->num_operands = 1;
+
+ status =
+ acpi_ds_create_operands(walk_state,
+ op->common.value.
+ arg);
+ if (ACPI_SUCCESS(status)) {
+ status =
+ acpi_ex_create_method(op->named.
+ data,
+ op->named.
+ length,
+ walk_state);
+ }
+ walk_state->operands[0] = NULL;
+ walk_state->num_operands = 0;
+
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ break;
+
+#endif /* ACPI_NO_METHOD_EXECUTION */
+
+ default:
+ /* All NAMED_COMPLEX opcodes must be handled above */
+ break;
+ }
+ break;
+
+ case AML_CLASS_INTERNAL:
+
+ /* case AML_INT_NAMEPATH_OP: */
+ break;
+
+ case AML_CLASS_METHOD_CALL:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
+ walk_state, op, node));
+
+ /*
+ * Lookup the method name and save the Node
+ */
+ status =
+ acpi_ns_lookup(walk_state->scope_info,
+ arg->common.value.string, ACPI_TYPE_ANY,
+ ACPI_IMODE_LOAD_PASS2,
+ ACPI_NS_SEARCH_PARENT |
+ ACPI_NS_DONT_OPEN_SCOPE, walk_state,
+ &(new_node));
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * Make sure that what we found is indeed a method
+ * We didn't search for a method on purpose, to see if the name
+ * would resolve
+ */
+ if (new_node->type != ACPI_TYPE_METHOD) {
+ status = AE_AML_OPERAND_TYPE;
+ }
+
+ /* We could put the returned object (Node) on the object stack for
+ * later, but for now, we will put it in the "op" object that the
+ * parser uses, so we can get it again at the end of this scope
+ */
+ op->common.node = new_node;
+ } else {
+ ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ cleanup:
+
+ /* Remove the Node pushed at the very beginning */
+
+ walk_state->operands[0] = NULL;
+ walk_state->num_operands = 0;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dswscope - Scope stack manipulation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdispat.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dswscope")
+
+/****************************************************************************
+ *
+ * FUNCTION: acpi_ds_scope_stack_clear
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Pop (and free) everything on the scope stack except the
+ * root scope object (which remains at the stack top.)
+ *
+ ***************************************************************************/
+void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state)
+{
+ union acpi_generic_state *scope_info;
+
+ ACPI_FUNCTION_NAME(ds_scope_stack_clear);
+
+ while (walk_state->scope_info) {
+
+ /* Pop a scope off the stack */
+
+ scope_info = walk_state->scope_info;
+ walk_state->scope_info = scope_info->scope.next;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Popped object type (%s)\n",
+ acpi_ut_get_type_name(scope_info->common.
+ value)));
+ acpi_ut_delete_generic_state(scope_info);
+ }
+}
+
+/****************************************************************************
+ *
+ * FUNCTION: acpi_ds_scope_stack_push
+ *
+ * PARAMETERS: Node - Name to be made current
+ * Type - Type of frame being pushed
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Push the current scope on the scope stack, and make the
+ * passed Node current.
+ *
+ ***************************************************************************/
+
+acpi_status
+acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
+ acpi_object_type type,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_generic_state *scope_info;
+ union acpi_generic_state *old_scope_info;
+
+ ACPI_FUNCTION_TRACE(ds_scope_stack_push);
+
+ if (!node) {
+
+ /* Invalid scope */
+
+ ACPI_ERROR((AE_INFO, "Null scope parameter"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Make sure object type is valid */
+
+ if (!acpi_ut_valid_object_type(type)) {
+ ACPI_WARNING((AE_INFO, "Invalid object type: 0x%X", type));
+ }
+
+ /* Allocate a new scope object */
+
+ scope_info = acpi_ut_create_generic_state();
+ if (!scope_info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Init new scope object */
+
+ scope_info->common.descriptor_type = ACPI_DESC_TYPE_STATE_WSCOPE;
+ scope_info->scope.node = node;
+ scope_info->common.value = (u16) type;
+
+ walk_state->scope_depth++;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[%.2d] Pushed scope ",
+ (u32) walk_state->scope_depth));
+
+ old_scope_info = walk_state->scope_info;
+ if (old_scope_info) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
+ "[%4.4s] (%s)",
+ acpi_ut_get_node_name(old_scope_info->
+ scope.node),
+ acpi_ut_get_type_name(old_scope_info->
+ common.value)));
+ } else {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (%s)", "ROOT"));
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
+ ", New scope -> [%4.4s] (%s)\n",
+ acpi_ut_get_node_name(scope_info->scope.node),
+ acpi_ut_get_type_name(scope_info->common.value)));
+
+ /* Push new scope object onto stack */
+
+ acpi_ut_push_generic_state(&walk_state->scope_info, scope_info);
+ return_ACPI_STATUS(AE_OK);
+}
+
+/****************************************************************************
+ *
+ * FUNCTION: acpi_ds_scope_stack_pop
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Pop the scope stack once.
+ *
+ ***************************************************************************/
+
+acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state)
+{
+ union acpi_generic_state *scope_info;
+ union acpi_generic_state *new_scope_info;
+
+ ACPI_FUNCTION_TRACE(ds_scope_stack_pop);
+
+ /*
+ * Pop scope info object off the stack.
+ */
+ scope_info = acpi_ut_pop_generic_state(&walk_state->scope_info);
+ if (!scope_info) {
+ return_ACPI_STATUS(AE_STACK_UNDERFLOW);
+ }
+
+ walk_state->scope_depth--;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[%.2d] Popped scope [%4.4s] (%s), New scope -> ",
+ (u32) walk_state->scope_depth,
+ acpi_ut_get_node_name(scope_info->scope.node),
+ acpi_ut_get_type_name(scope_info->common.value)));
+
+ new_scope_info = walk_state->scope_info;
+ if (new_scope_info) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
+ "[%4.4s] (%s)\n",
+ acpi_ut_get_node_name(new_scope_info->
+ scope.node),
+ acpi_ut_get_type_name(new_scope_info->
+ common.value)));
+ } else {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (ROOT)\n"));
+ }
+
+ acpi_ut_delete_generic_state(scope_info);
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: dswstate - Dispatcher parse tree walk management routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_DISPATCHER
+ACPI_MODULE_NAME("dswstate")
+
+ /* Local prototypes */
+static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *ws);
+static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *ws);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_result_pop
+ *
+ * PARAMETERS: Object - Where to return the popped object
+ * walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Pop an object off the top of this walk's result stack
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_result_pop(union acpi_operand_object **object,
+ struct acpi_walk_state *walk_state)
+{
+ u32 index;
+ union acpi_generic_state *state;
+ acpi_status status;
+
+ ACPI_FUNCTION_NAME(ds_result_pop);
+
+ state = walk_state->results;
+
+ /* Incorrect state of result stack */
+
+ if (state && !walk_state->result_count) {
+ ACPI_ERROR((AE_INFO, "No results on result stack"));
+ return (AE_AML_INTERNAL);
+ }
+
+ if (!state && walk_state->result_count) {
+ ACPI_ERROR((AE_INFO, "No result state for result stack"));
+ return (AE_AML_INTERNAL);
+ }
+
+ /* Empty result stack */
+
+ if (!state) {
+ ACPI_ERROR((AE_INFO, "Result stack is empty! State=%p",
+ walk_state));
+ return (AE_AML_NO_RETURN_VALUE);
+ }
+
+ /* Return object of the top element and clean that top element result stack */
+
+ walk_state->result_count--;
+ index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
+
+ *object = state->results.obj_desc[index];
+ if (!*object) {
+ ACPI_ERROR((AE_INFO,
+ "No result objects on result stack, State=%p",
+ walk_state));
+ return (AE_AML_NO_RETURN_VALUE);
+ }
+
+ state->results.obj_desc[index] = NULL;
+ if (index == 0) {
+ status = acpi_ds_result_stack_pop(walk_state);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Obj=%p [%s] Index=%X State=%p Num=%X\n", *object,
+ acpi_ut_get_object_type_name(*object),
+ index, walk_state, walk_state->result_count));
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_result_push
+ *
+ * PARAMETERS: Object - Where to return the popped object
+ * walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Push an object onto the current result stack
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_result_push(union acpi_operand_object * object,
+ struct acpi_walk_state * walk_state)
+{
+ union acpi_generic_state *state;
+ acpi_status status;
+ u32 index;
+
+ ACPI_FUNCTION_NAME(ds_result_push);
+
+ if (walk_state->result_count > walk_state->result_size) {
+ ACPI_ERROR((AE_INFO, "Result stack is full"));
+ return (AE_AML_INTERNAL);
+ } else if (walk_state->result_count == walk_state->result_size) {
+
+ /* Extend the result stack */
+
+ status = acpi_ds_result_stack_push(walk_state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Failed to extend the result stack"));
+ return (status);
+ }
+ }
+
+ if (!(walk_state->result_count < walk_state->result_size)) {
+ ACPI_ERROR((AE_INFO, "No free elements in result stack"));
+ return (AE_AML_INTERNAL);
+ }
+
+ state = walk_state->results;
+ if (!state) {
+ ACPI_ERROR((AE_INFO, "No result stack frame during push"));
+ return (AE_AML_INTERNAL);
+ }
+
+ if (!object) {
+ ACPI_ERROR((AE_INFO,
+ "Null Object! Obj=%p State=%p Num=%X",
+ object, walk_state, walk_state->result_count));
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Assign the address of object to the top free element of result stack */
+
+ index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
+ state->results.obj_desc[index] = object;
+ walk_state->result_count++;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p Num=%X Cur=%X\n",
+ object,
+ acpi_ut_get_object_type_name((union
+ acpi_operand_object *)
+ object), walk_state,
+ walk_state->result_count,
+ walk_state->current_result));
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_result_stack_push
+ *
+ * PARAMETERS: walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Push an object onto the walk_state result stack
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *walk_state)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_NAME(ds_result_stack_push);
+
+ /* Check for stack overflow */
+
+ if (((u32) walk_state->result_size + ACPI_RESULTS_FRAME_OBJ_NUM) >
+ ACPI_RESULTS_OBJ_NUM_MAX) {
+ ACPI_ERROR((AE_INFO, "Result stack overflow: State=%p Num=%X",
+ walk_state, walk_state->result_size));
+ return (AE_STACK_OVERFLOW);
+ }
+
+ state = acpi_ut_create_generic_state();
+ if (!state) {
+ return (AE_NO_MEMORY);
+ }
+
+ state->common.descriptor_type = ACPI_DESC_TYPE_STATE_RESULT;
+ acpi_ut_push_generic_state(&walk_state->results, state);
+
+ /* Increase the length of the result stack by the length of frame */
+
+ walk_state->result_size += ACPI_RESULTS_FRAME_OBJ_NUM;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Results=%p State=%p\n",
+ state, walk_state));
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_result_stack_pop
+ *
+ * PARAMETERS: walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Pop an object off of the walk_state result stack
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_NAME(ds_result_stack_pop);
+
+ /* Check for stack underflow */
+
+ if (walk_state->results == NULL) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Result stack underflow - State=%p\n",
+ walk_state));
+ return (AE_AML_NO_OPERAND);
+ }
+
+ if (walk_state->result_size < ACPI_RESULTS_FRAME_OBJ_NUM) {
+ ACPI_ERROR((AE_INFO, "Insufficient result stack size"));
+ return (AE_AML_INTERNAL);
+ }
+
+ state = acpi_ut_pop_generic_state(&walk_state->results);
+ acpi_ut_delete_generic_state(state);
+
+ /* Decrease the length of result stack by the length of frame */
+
+ walk_state->result_size -= ACPI_RESULTS_FRAME_OBJ_NUM;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Result=%p RemainingResults=%X State=%p\n",
+ state, walk_state->result_count, walk_state));
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_obj_stack_push
+ *
+ * PARAMETERS: Object - Object to push
+ * walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Push an object onto this walk's object/operand stack
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state)
+{
+ ACPI_FUNCTION_NAME(ds_obj_stack_push);
+
+ /* Check for stack overflow */
+
+ if (walk_state->num_operands >= ACPI_OBJ_NUM_OPERANDS) {
+ ACPI_ERROR((AE_INFO,
+ "Object stack overflow! Obj=%p State=%p #Ops=%X",
+ object, walk_state, walk_state->num_operands));
+ return (AE_STACK_OVERFLOW);
+ }
+
+ /* Put the object onto the stack */
+
+ walk_state->operands[walk_state->operand_index] = object;
+ walk_state->num_operands++;
+
+ /* For the usual order of filling the operand stack */
+
+ walk_state->operand_index++;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p #Ops=%X\n",
+ object,
+ acpi_ut_get_object_type_name((union
+ acpi_operand_object *)
+ object), walk_state,
+ walk_state->num_operands));
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_obj_stack_pop
+ *
+ * PARAMETERS: pop_count - Number of objects/entries to pop
+ * walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Pop this walk's object stack. Objects on the stack are NOT
+ * deleted by this routine.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state)
+{
+ u32 i;
+
+ ACPI_FUNCTION_NAME(ds_obj_stack_pop);
+
+ for (i = 0; i < pop_count; i++) {
+
+ /* Check for stack underflow */
+
+ if (walk_state->num_operands == 0) {
+ ACPI_ERROR((AE_INFO,
+ "Object stack underflow! Count=%X State=%p #Ops=%X",
+ pop_count, walk_state,
+ walk_state->num_operands));
+ return (AE_STACK_UNDERFLOW);
+ }
+
+ /* Just set the stack entry to null */
+
+ walk_state->num_operands--;
+ walk_state->operands[walk_state->num_operands] = NULL;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n",
+ pop_count, walk_state, walk_state->num_operands));
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_obj_stack_pop_and_delete
+ *
+ * PARAMETERS: pop_count - Number of objects/entries to pop
+ * walk_state - Current Walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Pop this walk's object stack and delete each object that is
+ * popped off.
+ *
+ ******************************************************************************/
+
+void
+acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
+ struct acpi_walk_state *walk_state)
+{
+ s32 i;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete);
+
+ if (pop_count == 0) {
+ return;
+ }
+
+ for (i = (s32) pop_count - 1; i >= 0; i--) {
+ if (walk_state->num_operands == 0) {
+ return;
+ }
+
+ /* Pop the stack and delete an object if present in this stack entry */
+
+ walk_state->num_operands--;
+ obj_desc = walk_state->operands[i];
+ if (obj_desc) {
+ acpi_ut_remove_reference(walk_state->operands[i]);
+ walk_state->operands[i] = NULL;
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n",
+ pop_count, walk_state, walk_state->num_operands));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_get_current_walk_state
+ *
+ * PARAMETERS: Thread - Get current active state for this Thread
+ *
+ * RETURN: Pointer to the current walk state
+ *
+ * DESCRIPTION: Get the walk state that is at the head of the list (the "current"
+ * walk state.)
+ *
+ ******************************************************************************/
+
+struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state
+ *thread)
+{
+ ACPI_FUNCTION_NAME(ds_get_current_walk_state);
+
+ if (!thread) {
+ return (NULL);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current WalkState %p\n",
+ thread->walk_state_list));
+
+ return (thread->walk_state_list);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_push_walk_state
+ *
+ * PARAMETERS: walk_state - State to push
+ * Thread - Thread state object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Place the Thread state at the head of the state list
+ *
+ ******************************************************************************/
+
+void
+acpi_ds_push_walk_state(struct acpi_walk_state *walk_state,
+ struct acpi_thread_state *thread)
+{
+ ACPI_FUNCTION_TRACE(ds_push_walk_state);
+
+ walk_state->next = thread->walk_state_list;
+ thread->walk_state_list = walk_state;
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_pop_walk_state
+ *
+ * PARAMETERS: Thread - Current thread state
+ *
+ * RETURN: A walk_state object popped from the thread's stack
+ *
+ * DESCRIPTION: Remove and return the walkstate object that is at the head of
+ * the walk stack for the given walk list. NULL indicates that
+ * the list is empty.
+ *
+ ******************************************************************************/
+
+struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
+{
+ struct acpi_walk_state *walk_state;
+
+ ACPI_FUNCTION_TRACE(ds_pop_walk_state);
+
+ walk_state = thread->walk_state_list;
+
+ if (walk_state) {
+
+ /* Next walk state becomes the current walk state */
+
+ thread->walk_state_list = walk_state->next;
+
+ /*
+ * Don't clear the NEXT field, this serves as an indicator
+ * that there is a parent WALK STATE
+ * Do Not: walk_state->Next = NULL;
+ */
+ }
+
+ return_PTR(walk_state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_create_walk_state
+ *
+ * PARAMETERS: owner_id - ID for object creation
+ * Origin - Starting point for this walk
+ * method_desc - Method object
+ * Thread - Current thread state
+ *
+ * RETURN: Pointer to the new walk state.
+ *
+ * DESCRIPTION: Allocate and initialize a new walk state. The current walk
+ * state is set to this new state.
+ *
+ ******************************************************************************/
+
+struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object
+ *origin, union acpi_operand_object
+ *method_desc, struct acpi_thread_state
+ *thread)
+{
+ struct acpi_walk_state *walk_state;
+
+ ACPI_FUNCTION_TRACE(ds_create_walk_state);
+
+ walk_state = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_walk_state));
+ if (!walk_state) {
+ return_PTR(NULL);
+ }
+
+ walk_state->descriptor_type = ACPI_DESC_TYPE_WALK;
+ walk_state->method_desc = method_desc;
+ walk_state->owner_id = owner_id;
+ walk_state->origin = origin;
+ walk_state->thread = thread;
+
+ walk_state->parser_state.start_op = origin;
+
+ /* Init the method args/local */
+
+#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
+ acpi_ds_method_data_init(walk_state);
+#endif
+
+ /* Put the new state at the head of the walk list */
+
+ if (thread) {
+ acpi_ds_push_walk_state(walk_state, thread);
+ }
+
+ return_PTR(walk_state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_init_aml_walk
+ *
+ * PARAMETERS: walk_state - New state to be initialized
+ * Op - Current parse op
+ * method_node - Control method NS node, if any
+ * aml_start - Start of AML
+ * aml_length - Length of AML
+ * Info - Method info block (params, etc.)
+ * pass_number - 1, 2, or 3
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize a walk state for a pass 1 or 2 parse tree walk
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ struct acpi_namespace_node *method_node,
+ u8 * aml_start,
+ u32 aml_length,
+ struct acpi_evaluate_info *info, u8 pass_number)
+{
+ acpi_status status;
+ struct acpi_parse_state *parser_state = &walk_state->parser_state;
+ union acpi_parse_object *extra_op;
+
+ ACPI_FUNCTION_TRACE(ds_init_aml_walk);
+
+ walk_state->parser_state.aml =
+ walk_state->parser_state.aml_start = aml_start;
+ walk_state->parser_state.aml_end =
+ walk_state->parser_state.pkg_end = aml_start + aml_length;
+
+ /* The next_op of the next_walk will be the beginning of the method */
+
+ walk_state->next_op = NULL;
+ walk_state->pass_number = pass_number;
+
+ if (info) {
+ walk_state->params = info->parameters;
+ walk_state->caller_return_desc = &info->return_object;
+ }
+
+ status = acpi_ps_init_scope(&walk_state->parser_state, op);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (method_node) {
+ walk_state->parser_state.start_node = method_node;
+ walk_state->walk_type = ACPI_WALK_METHOD;
+ walk_state->method_node = method_node;
+ walk_state->method_desc =
+ acpi_ns_get_attached_object(method_node);
+
+ /* Push start scope on scope stack and make it current */
+
+ status =
+ acpi_ds_scope_stack_push(method_node, ACPI_TYPE_METHOD,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Init the method arguments */
+
+ status = acpi_ds_method_data_init_args(walk_state->params,
+ ACPI_METHOD_NUM_ARGS,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ /*
+ * Setup the current scope.
+ * Find a Named Op that has a namespace node associated with it.
+ * search upwards from this Op. Current scope is the first
+ * Op with a namespace node.
+ */
+ extra_op = parser_state->start_op;
+ while (extra_op && !extra_op->common.node) {
+ extra_op = extra_op->common.parent;
+ }
+
+ if (!extra_op) {
+ parser_state->start_node = NULL;
+ } else {
+ parser_state->start_node = extra_op->common.node;
+ }
+
+ if (parser_state->start_node) {
+
+ /* Push start scope on scope stack and make it current */
+
+ status =
+ acpi_ds_scope_stack_push(parser_state->start_node,
+ parser_state->start_node->
+ type, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ }
+
+ status = acpi_ds_init_callbacks(walk_state, pass_number);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ds_delete_walk_state
+ *
+ * PARAMETERS: walk_state - State to delete
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Delete a walk state including all internal data structures
+ *
+ ******************************************************************************/
+
+void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_TRACE_PTR(ds_delete_walk_state, walk_state);
+
+ if (!walk_state) {
+ return;
+ }
+
+ if (walk_state->descriptor_type != ACPI_DESC_TYPE_WALK) {
+ ACPI_ERROR((AE_INFO, "%p is not a valid walk state",
+ walk_state));
+ return;
+ }
+
+ /* There should not be any open scopes */
+
+ if (walk_state->parser_state.scope) {
+ ACPI_ERROR((AE_INFO, "%p walk still has a scope list",
+ walk_state));
+ acpi_ps_cleanup_scope(&walk_state->parser_state);
+ }
+
+ /* Always must free any linked control states */
+
+ while (walk_state->control_state) {
+ state = walk_state->control_state;
+ walk_state->control_state = state->common.next;
+
+ acpi_ut_delete_generic_state(state);
+ }
+
+ /* Always must free any linked parse states */
+
+ while (walk_state->scope_info) {
+ state = walk_state->scope_info;
+ walk_state->scope_info = state->common.next;
+
+ acpi_ut_delete_generic_state(state);
+ }
+
+ /* Always must free any stacked result states */
+
+ while (walk_state->results) {
+ state = walk_state->results;
+ walk_state->results = state->common.next;
+
+ acpi_ut_delete_generic_state(state);
+ }
+
+ ACPI_FREE(walk_state);
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evevent - Fixed Event handling and dispatch
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evevent")
+
+/* Local prototypes */
+static acpi_status acpi_ev_fixed_event_initialize(void);
+
+static u32 acpi_ev_fixed_event_dispatch(u32 event);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_initialize_events
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize global data structures for ACPI events (Fixed, GPE)
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_initialize_events(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_initialize_events);
+
+ /*
+ * Initialize the Fixed and General Purpose Events. This is done prior to
+ * enabling SCIs to prevent interrupts from occurring before the handlers
+ * are installed.
+ */
+ status = acpi_ev_fixed_event_initialize();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to initialize fixed events"));
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_ev_gpe_initialize();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to initialize general purpose events"));
+ return_ACPI_STATUS(status);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_fadt_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Completes initialization of the FADT-defined GPE blocks
+ * (0 and 1). This causes the _PRW methods to be run, so the HW
+ * must be fully initialized at this point, including global lock
+ * support.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_install_fadt_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_install_fadt_gpes);
+
+ /* Namespace must be locked */
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* FADT GPE Block 0 */
+
+ (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
+ acpi_gbl_gpe_fadt_blocks[0]);
+
+ /* FADT GPE Block 1 */
+
+ (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
+ acpi_gbl_gpe_fadt_blocks[1]);
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_xrupt_handlers
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install interrupt handlers for the SCI and Global Lock
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_install_xrupt_handlers(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers);
+
+ /* Install the SCI handler */
+
+ status = acpi_ev_install_sci_handler();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to install System Control Interrupt handler"));
+ return_ACPI_STATUS(status);
+ }
+
+ /* Install the handler for the Global Lock */
+
+ status = acpi_ev_init_global_lock_handler();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to initialize Global Lock handler"));
+ return_ACPI_STATUS(status);
+ }
+
+ acpi_gbl_events_initialized = TRUE;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_fixed_event_initialize
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install the fixed event handlers and enable the fixed events.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ev_fixed_event_initialize(void)
+{
+ u32 i;
+ acpi_status status;
+
+ /*
+ * Initialize the structure that keeps track of fixed event handlers and
+ * enable the fixed events.
+ */
+ for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+ acpi_gbl_fixed_event_handlers[i].handler = NULL;
+ acpi_gbl_fixed_event_handlers[i].context = NULL;
+
+ /* Enable the fixed event */
+
+ if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) {
+ status =
+ acpi_set_register(acpi_gbl_fixed_event_info[i].
+ enable_register_id, 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_fixed_event_detect
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
+ *
+ * DESCRIPTION: Checks the PM status register for active fixed events
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_fixed_event_detect(void)
+{
+ u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
+ u32 fixed_status;
+ u32 fixed_enable;
+ u32 i;
+
+ ACPI_FUNCTION_NAME(ev_fixed_event_detect);
+
+ /*
+ * Read the fixed feature status and enable registers, as all the cases
+ * depend on their values. Ignore errors here.
+ */
+ (void)acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status);
+ (void)acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
+ "Fixed Event Block: Enable %08X Status %08X\n",
+ fixed_enable, fixed_status));
+
+ /*
+ * Check for all possible Fixed Events and dispatch those that are active
+ */
+ for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+
+ /* Both the status and enable bits must be on for this event */
+
+ if ((fixed_status & acpi_gbl_fixed_event_info[i].
+ status_bit_mask)
+ && (fixed_enable & acpi_gbl_fixed_event_info[i].
+ enable_bit_mask)) {
+
+ /* Found an active (signalled) event */
+ acpi_os_fixed_event_count(i);
+ int_status |= acpi_ev_fixed_event_dispatch(i);
+ }
+ }
+
+ return (int_status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_fixed_event_dispatch
+ *
+ * PARAMETERS: Event - Event type
+ *
+ * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
+ *
+ * DESCRIPTION: Clears the status bit for the requested event, calls the
+ * handler that previously registered for the event.
+ *
+ ******************************************************************************/
+
+static u32 acpi_ev_fixed_event_dispatch(u32 event)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Clear the status bit */
+
+ (void)acpi_set_register(acpi_gbl_fixed_event_info[event].
+ status_register_id, 1);
+
+ /*
+ * Make sure we've got a handler. If not, report an error. The event is
+ * disabled to prevent further interrupts.
+ */
+ if (NULL == acpi_gbl_fixed_event_handlers[event].handler) {
+ (void)acpi_set_register(acpi_gbl_fixed_event_info[event].
+ enable_register_id, 0);
+
+ ACPI_ERROR((AE_INFO,
+ "No installed handler for fixed event [%08X]",
+ event));
+
+ return (ACPI_INTERRUPT_NOT_HANDLED);
+ }
+
+ /* Invoke the Fixed Event handler */
+
+ return ((acpi_gbl_fixed_event_handlers[event].
+ handler) (acpi_gbl_fixed_event_handlers[event].context));
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evgpe - General Purpose Event handling and dispatch
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evgpe")
+
+/* Local prototypes */
+static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_set_gpe_type
+ *
+ * PARAMETERS: gpe_event_info - GPE to set
+ * Type - New type
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_set_gpe_type);
+
+ /* Validate type and update register enable masks */
+
+ switch (type) {
+ case ACPI_GPE_TYPE_WAKE:
+ case ACPI_GPE_TYPE_RUNTIME:
+ case ACPI_GPE_TYPE_WAKE_RUN:
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Disable the GPE if currently enabled */
+
+ status = acpi_ev_disable_gpe(gpe_event_info);
+
+ /* Type was validated above */
+
+ gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */
+ gpe_event_info->flags |= type; /* Insert type */
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_update_gpe_enable_masks
+ *
+ * PARAMETERS: gpe_event_info - GPE to update
+ * Type - What to do: ACPI_GPE_DISABLE or
+ * ACPI_GPE_ENABLE
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Updates GPE register enable masks based on the GPE type
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
+ u8 type)
+{
+ struct acpi_gpe_register_info *gpe_register_info;
+ u8 register_bit;
+
+ ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks);
+
+ gpe_register_info = gpe_event_info->register_info;
+ if (!gpe_register_info) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+ register_bit = (u8)
+ (1 <<
+ (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
+
+ /* 1) Disable case. Simply clear all enable bits */
+
+ if (type == ACPI_GPE_DISABLE) {
+ ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
+ register_bit);
+ ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* 2) Enable case. Set/Clear the appropriate enable bits */
+
+ switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
+ case ACPI_GPE_TYPE_WAKE:
+ ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
+ ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
+ break;
+
+ case ACPI_GPE_TYPE_RUNTIME:
+ ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
+ register_bit);
+ ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit);
+ break;
+
+ case ACPI_GPE_TYPE_WAKE_RUN:
+ ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
+ ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit);
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_enable_gpe
+ *
+ * PARAMETERS: gpe_event_info - GPE to enable
+ * write_to_hardware - Enable now, or just mark data structs
+ * (WAKE GPEs should be deferred)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable a GPE based on the GPE type
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
+ u8 write_to_hardware)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_enable_gpe);
+
+ /* Make sure HW enable masks are updated */
+
+ status =
+ acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Mark wake-enabled or HW enable, or both */
+
+ switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
+ case ACPI_GPE_TYPE_WAKE:
+
+ ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
+ break;
+
+ case ACPI_GPE_TYPE_WAKE_RUN:
+
+ ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
+
+ /*lint -fallthrough */
+
+ case ACPI_GPE_TYPE_RUNTIME:
+
+ ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
+
+ if (write_to_hardware) {
+
+ /* Clear the GPE (of stale events), then enable it */
+
+ status = acpi_hw_clear_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Enable the requested runtime GPE */
+
+ status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
+ }
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_disable_gpe
+ *
+ * PARAMETERS: gpe_event_info - GPE to disable
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable a GPE based on the GPE type
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_disable_gpe);
+
+ /* Make sure HW enable masks are updated */
+
+ status =
+ acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Clear the appropriate enabled flags for this GPE */
+
+ switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
+ case ACPI_GPE_TYPE_WAKE:
+ ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
+ break;
+
+ case ACPI_GPE_TYPE_WAKE_RUN:
+ ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
+
+ /* fallthrough */
+
+ case ACPI_GPE_TYPE_RUNTIME:
+
+ /* Disable the requested runtime GPE */
+
+ ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
+ break;
+
+ default:
+ break;
+ }
+
+ /*
+ * Even if we don't know the GPE type, make sure that we always
+ * disable it. low_disable_gpe will just clear the enable bit for this
+ * GPE and write it. It will not write out the current GPE enable mask,
+ * since this may inadvertently enable GPEs too early, if a rogue GPE has
+ * come in during ACPICA initialization - possibly as a result of AML or
+ * other code that has enabled the GPE.
+ */
+ status = acpi_hw_low_disable_gpe(gpe_event_info);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_get_gpe_event_info
+ *
+ * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1
+ * gpe_number - Raw GPE number
+ *
+ * RETURN: A GPE event_info struct. NULL if not a valid GPE
+ *
+ * DESCRIPTION: Returns the event_info struct associated with this GPE.
+ * Validates the gpe_block and the gpe_number
+ *
+ * Should be called only when the GPE lists are semaphore locked
+ * and not subject to change.
+ *
+ ******************************************************************************/
+
+struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
+ u32 gpe_number)
+{
+ union acpi_operand_object *obj_desc;
+ struct acpi_gpe_block_info *gpe_block;
+ u32 i;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* A NULL gpe_block means use the FADT-defined GPE block(s) */
+
+ if (!gpe_device) {
+
+ /* Examine GPE Block 0 and 1 (These blocks are permanent) */
+
+ for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) {
+ gpe_block = acpi_gbl_gpe_fadt_blocks[i];
+ if (gpe_block) {
+ if ((gpe_number >= gpe_block->block_base_number)
+ && (gpe_number <
+ gpe_block->block_base_number +
+ (gpe_block->register_count * 8))) {
+ return (&gpe_block->
+ event_info[gpe_number -
+ gpe_block->
+ block_base_number]);
+ }
+ }
+ }
+
+ /* The gpe_number was not in the range of either FADT GPE block */
+
+ return (NULL);
+ }
+
+ /* A Non-NULL gpe_device means this is a GPE Block Device */
+
+ obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)
+ gpe_device);
+ if (!obj_desc || !obj_desc->device.gpe_block) {
+ return (NULL);
+ }
+
+ gpe_block = obj_desc->device.gpe_block;
+
+ if ((gpe_number >= gpe_block->block_base_number) &&
+ (gpe_number <
+ gpe_block->block_base_number + (gpe_block->register_count * 8))) {
+ return (&gpe_block->
+ event_info[gpe_number - gpe_block->block_base_number]);
+ }
+
+ return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_gpe_detect
+ *
+ * PARAMETERS: gpe_xrupt_list - Interrupt block for this interrupt.
+ * Can have multiple GPE blocks attached.
+ *
+ * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
+ *
+ * DESCRIPTION: Detect if any GP events have occurred. This function is
+ * executed at interrupt level.
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
+{
+ acpi_status status;
+ struct acpi_gpe_block_info *gpe_block;
+ struct acpi_gpe_register_info *gpe_register_info;
+ u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
+ u8 enabled_status_byte;
+ u32 status_reg;
+ u32 enable_reg;
+ acpi_cpu_flags flags;
+ u32 i;
+ u32 j;
+
+ ACPI_FUNCTION_NAME(ev_gpe_detect);
+
+ /* Check for the case where there are no GPEs */
+
+ if (!gpe_xrupt_list) {
+ return (int_status);
+ }
+
+ /*
+ * We need to obtain the GPE lock for both the data structs and registers
+ * Note: Not necessary to obtain the hardware lock, since the GPE
+ * registers are owned by the gpe_lock.
+ */
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Examine all GPE blocks attached to this interrupt level */
+
+ gpe_block = gpe_xrupt_list->gpe_block_list_head;
+ while (gpe_block) {
+ /*
+ * Read all of the 8-bit GPE status and enable registers in this GPE
+ * block, saving all of them. Find all currently active GP events.
+ */
+ for (i = 0; i < gpe_block->register_count; i++) {
+
+ /* Get the next status/enable pair */
+
+ gpe_register_info = &gpe_block->register_info[i];
+
+ /* Read the Status Register */
+
+ status =
+ acpi_read(&status_reg,
+ &gpe_register_info->status_address);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Read the Enable Register */
+
+ status =
+ acpi_read(&enable_reg,
+ &gpe_register_info->enable_address);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
+ "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n",
+ gpe_register_info->base_gpe_number,
+ status_reg, enable_reg));
+
+ /* Check if there is anything active at all in this register */
+
+ enabled_status_byte = (u8) (status_reg & enable_reg);
+ if (!enabled_status_byte) {
+
+ /* No active GPEs in this register, move on */
+
+ continue;
+ }
+
+ /* Now look at the individual GPEs in this byte register */
+
+ for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+
+ /* Examine one GPE bit */
+
+ if (enabled_status_byte & (1 << j)) {
+ /*
+ * Found an active GPE. Dispatch the event to a handler
+ * or method.
+ */
+ int_status |=
+ acpi_ev_gpe_dispatch(&gpe_block->
+ event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number);
+ }
+ }
+ }
+
+ gpe_block = gpe_block->next;
+ }
+
+ unlock_and_exit:
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return (int_status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_asynch_execute_gpe_method
+ *
+ * PARAMETERS: Context (gpe_event_info) - Info for this GPE
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Perform the actual execution of a GPE control method. This
+ * function is called from an invocation of acpi_os_execute and
+ * therefore does NOT execute at interrupt level - so that
+ * the control method itself is not executed in the context of
+ * an interrupt handler.
+ *
+ ******************************************************************************/
+static void acpi_ev_asynch_enable_gpe(void *context);
+
+static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
+{
+ struct acpi_gpe_event_info *gpe_event_info = (void *)context;
+ acpi_status status;
+ struct acpi_gpe_event_info local_gpe_event_info;
+ struct acpi_evaluate_info *info;
+
+ ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+
+ /* Must revalidate the gpe_number/gpe_block */
+
+ if (!acpi_ev_valid_gpe_event(gpe_event_info)) {
+ status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_VOID;
+ }
+
+ /* Set the GPE flags for return to enabled state */
+
+ (void)acpi_ev_enable_gpe(gpe_event_info, FALSE);
+
+ /*
+ * Take a snapshot of the GPE info for this level - we copy the info to
+ * prevent a race condition with remove_handler/remove_block.
+ */
+ ACPI_MEMCPY(&local_gpe_event_info, gpe_event_info,
+ sizeof(struct acpi_gpe_event_info));
+
+ status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+
+ /*
+ * Must check for control method type dispatch one more time to avoid a
+ * race with ev_gpe_install_handler
+ */
+ if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_METHOD) {
+
+ /* Allocate the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ status = AE_NO_MEMORY;
+ } else {
+ /*
+ * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
+ * control method that corresponds to this GPE
+ */
+ info->prefix_node =
+ local_gpe_event_info.dispatch.method_node;
+ info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+ status = acpi_ns_evaluate(info);
+ ACPI_FREE(info);
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "while evaluating GPE method [%4.4s]",
+ acpi_ut_get_node_name
+ (local_gpe_event_info.dispatch.
+ method_node)));
+ }
+ }
+ /* Defer enabling of GPE until all notify handlers are done */
+ acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_asynch_enable_gpe,
+ gpe_event_info);
+ return_VOID;
+}
+
+static void acpi_ev_asynch_enable_gpe(void *context)
+{
+ struct acpi_gpe_event_info *gpe_event_info = context;
+ acpi_status status;
+ if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
+ ACPI_GPE_LEVEL_TRIGGERED) {
+ /*
+ * GPE is level-triggered, we clear the GPE status bit after handling
+ * the event.
+ */
+ status = acpi_hw_clear_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+ }
+
+ /* Enable this GPE */
+ (void)acpi_hw_write_gpe_enable_reg(gpe_event_info);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_gpe_dispatch
+ *
+ * PARAMETERS: gpe_event_info - Info for this GPE
+ * gpe_number - Number relative to the parent GPE block
+ *
+ * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
+ *
+ * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC)
+ * or method (e.g. _Lxx/_Exx) handler.
+ *
+ * This function executes at interrupt level.
+ *
+ ******************************************************************************/
+
+u32
+acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_gpe_dispatch);
+
+ acpi_os_gpe_count(gpe_number);
+
+ /*
+ * If edge-triggered, clear the GPE status bit now. Note that
+ * level-triggered events are cleared after the GPE is serviced.
+ */
+ if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
+ ACPI_GPE_EDGE_TRIGGERED) {
+ status = acpi_hw_clear_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to clear GPE[%2X]",
+ gpe_number));
+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
+ }
+ }
+
+ /*
+ * Dispatch the GPE to either an installed handler, or the control method
+ * associated with this GPE (_Lxx or _Exx). If a handler exists, we invoke
+ * it and do not attempt to run the method. If there is neither a handler
+ * nor a method, we disable this GPE to prevent further such pointless
+ * events from firing.
+ */
+ switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) {
+ case ACPI_GPE_DISPATCH_HANDLER:
+
+ /*
+ * Invoke the installed handler (at interrupt level)
+ * Ignore return status for now.
+ * TBD: leave GPE disabled on error?
+ */
+ (void)gpe_event_info->dispatch.handler->address(gpe_event_info->
+ dispatch.
+ handler->
+ context);
+
+ /* It is now safe to clear level-triggered events. */
+
+ if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
+ ACPI_GPE_LEVEL_TRIGGERED) {
+ status = acpi_hw_clear_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to clear GPE[%2X]",
+ gpe_number));
+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
+ }
+ }
+ break;
+
+ case ACPI_GPE_DISPATCH_METHOD:
+
+ /*
+ * Disable the GPE, so it doesn't keep firing before the method has a
+ * chance to run (it runs asynchronously with interrupts enabled).
+ */
+ status = acpi_ev_disable_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to disable GPE[%2X]",
+ gpe_number));
+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
+ }
+
+ /*
+ * Execute the method associated with the GPE
+ * NOTE: Level-triggered GPEs are cleared after the method completes.
+ */
+ status = acpi_os_execute(OSL_GPE_HANDLER,
+ acpi_ev_asynch_execute_gpe_method,
+ gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to queue handler for GPE[%2X] - event disabled",
+ gpe_number));
+ }
+ break;
+
+ default:
+
+ /* No handler or method to run! */
+
+ ACPI_ERROR((AE_INFO,
+ "No handler or method for GPE[%2X], disabling event",
+ gpe_number));
+
+ /*
+ * Disable the GPE. The GPE will remain disabled until the ACPICA
+ * Core Subsystem is restarted, or a handler is installed.
+ */
+ status = acpi_ev_disable_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Unable to disable GPE[%2X]",
+ gpe_number));
+ return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
+ }
+ break;
+ }
+
+ return_UINT32(ACPI_INTERRUPT_HANDLED);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evgpeblk - GPE block creation and initialization.
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evgpeblk")
+
+/* Local prototypes */
+static acpi_status
+acpi_ev_save_method_info(acpi_handle obj_handle,
+ u32 level, void *obj_desc, void **return_value);
+
+static acpi_status
+acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
+ u32 level, void *info, void **return_value);
+
+static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
+ interrupt_number);
+
+static acpi_status
+acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt);
+
+static acpi_status
+acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
+ u32 interrupt_number);
+
+static acpi_status
+acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_valid_gpe_event
+ *
+ * PARAMETERS: gpe_event_info - Info for this GPE
+ *
+ * RETURN: TRUE if the gpe_event is valid
+ *
+ * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL.
+ * Should be called only when the GPE lists are semaphore locked
+ * and not subject to change.
+ *
+ ******************************************************************************/
+
+u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info)
+{
+ struct acpi_gpe_xrupt_info *gpe_xrupt_block;
+ struct acpi_gpe_block_info *gpe_block;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* No need for spin lock since we are not changing any list elements */
+
+ /* Walk the GPE interrupt levels */
+
+ gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head;
+ while (gpe_xrupt_block) {
+ gpe_block = gpe_xrupt_block->gpe_block_list_head;
+
+ /* Walk the GPE blocks on this interrupt level */
+
+ while (gpe_block) {
+ if ((&gpe_block->event_info[0] <= gpe_event_info) &&
+ (&gpe_block->
+ event_info[((acpi_size) gpe_block->
+ register_count) * 8] >
+ gpe_event_info)) {
+ return (TRUE);
+ }
+
+ gpe_block = gpe_block->next;
+ }
+
+ gpe_xrupt_block = gpe_xrupt_block->next;
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_walk_gpe_list
+ *
+ * PARAMETERS: gpe_walk_callback - Routine called for each GPE block
+ * Context - Value passed to callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk the GPE lists.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context)
+{
+ struct acpi_gpe_block_info *gpe_block;
+ struct acpi_gpe_xrupt_info *gpe_xrupt_info;
+ acpi_status status = AE_OK;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(ev_walk_gpe_list);
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Walk the interrupt level descriptor list */
+
+ gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
+ while (gpe_xrupt_info) {
+
+ /* Walk all Gpe Blocks attached to this interrupt level */
+
+ gpe_block = gpe_xrupt_info->gpe_block_list_head;
+ while (gpe_block) {
+
+ /* One callback per GPE block */
+
+ status =
+ gpe_walk_callback(gpe_xrupt_info, gpe_block,
+ context);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_CTRL_END) { /* Callback abort */
+ status = AE_OK;
+ }
+ goto unlock_and_exit;
+ }
+
+ gpe_block = gpe_block->next;
+ }
+
+ gpe_xrupt_info = gpe_xrupt_info->next;
+ }
+
+ unlock_and_exit:
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_delete_gpe_handlers
+ *
+ * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
+ * gpe_block - Gpe Block info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Delete all Handler objects found in the GPE data structs.
+ * Used only prior to termination.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block,
+ void *context)
+{
+ struct acpi_gpe_event_info *gpe_event_info;
+ u32 i;
+ u32 j;
+
+ ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers);
+
+ /* Examine each GPE Register within the block */
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+
+ /* Now look at the individual GPEs in this byte register */
+
+ for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+ gpe_event_info =
+ &gpe_block->
+ event_info[((acpi_size) i *
+ ACPI_GPE_REGISTER_WIDTH) + j];
+
+ if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_HANDLER) {
+ ACPI_FREE(gpe_event_info->dispatch.handler);
+ gpe_event_info->dispatch.handler = NULL;
+ gpe_event_info->flags &=
+ ~ACPI_GPE_DISPATCH_MASK;
+ }
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_save_method_info
+ *
+ * PARAMETERS: Callback from walk_namespace
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a
+ * control method under the _GPE portion of the namespace.
+ * Extract the name and GPE type from the object, saving this
+ * information for quick lookup during GPE dispatch
+ *
+ * The name of each GPE control method is of the form:
+ * "_Lxx" or "_Exx"
+ * Where:
+ * L - means that the GPE is level triggered
+ * E - means that the GPE is edge triggered
+ * xx - is the GPE number [in HEX]
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_save_method_info(acpi_handle obj_handle,
+ u32 level, void *obj_desc, void **return_value)
+{
+ struct acpi_gpe_block_info *gpe_block = (void *)obj_desc;
+ struct acpi_gpe_event_info *gpe_event_info;
+ u32 gpe_number;
+ char name[ACPI_NAME_SIZE + 1];
+ u8 type;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_save_method_info);
+
+ /*
+ * _Lxx and _Exx GPE method support
+ *
+ * 1) Extract the name from the object and convert to a string
+ */
+ ACPI_MOVE_32_TO_32(name,
+ &((struct acpi_namespace_node *)obj_handle)->name.
+ integer);
+ name[ACPI_NAME_SIZE] = 0;
+
+ /*
+ * 2) Edge/Level determination is based on the 2nd character
+ * of the method name
+ *
+ * NOTE: Default GPE type is RUNTIME. May be changed later to WAKE
+ * if a _PRW object is found that points to this GPE.
+ */
+ switch (name[1]) {
+ case 'L':
+ type = ACPI_GPE_LEVEL_TRIGGERED;
+ break;
+
+ case 'E':
+ type = ACPI_GPE_EDGE_TRIGGERED;
+ break;
+
+ default:
+ /* Unknown method type, just ignore it! */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "Ignoring unknown GPE method type: %s (name not of form _Lxx or _Exx)",
+ name));
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Convert the last two characters of the name to the GPE Number */
+
+ gpe_number = ACPI_STRTOUL(&name[2], NULL, 16);
+ if (gpe_number == ACPI_UINT32_MAX) {
+
+ /* Conversion failed; invalid method, just ignore it */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)",
+ name));
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Ensure that we have a valid GPE number for this GPE block */
+
+ if ((gpe_number < gpe_block->block_base_number) ||
+ (gpe_number >=
+ (gpe_block->block_base_number +
+ (gpe_block->register_count * 8)))) {
+ /*
+ * Not valid for this GPE block, just ignore it. However, it may be
+ * valid for a different GPE block, since GPE0 and GPE1 methods both
+ * appear under \_GPE.
+ */
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Now we can add this information to the gpe_event_info block for use
+ * during dispatch of this GPE. Default type is RUNTIME, although this may
+ * change when the _PRW methods are executed later.
+ */
+ gpe_event_info =
+ &gpe_block->event_info[gpe_number - gpe_block->block_base_number];
+
+ gpe_event_info->flags = (u8)
+ (type | ACPI_GPE_DISPATCH_METHOD | ACPI_GPE_TYPE_RUNTIME);
+
+ gpe_event_info->dispatch.method_node =
+ (struct acpi_namespace_node *)obj_handle;
+
+ /* Update enable mask, but don't enable the HW GPE as of yet */
+
+ status = acpi_ev_enable_gpe(gpe_event_info, FALSE);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "Registered GPE method %s as GPE number 0x%.2X\n",
+ name, gpe_number));
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_match_prw_and_gpe
+ *
+ * PARAMETERS: Callback from walk_namespace
+ *
+ * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is
+ * not aborted on a single _PRW failure.
+ *
+ * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a
+ * Device. Run the _PRW method. If present, extract the GPE
+ * number and mark the GPE as a WAKE GPE.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
+ u32 level, void *info, void **return_value)
+{
+ struct acpi_gpe_walk_info *gpe_info = (void *)info;
+ struct acpi_namespace_node *gpe_device;
+ struct acpi_gpe_block_info *gpe_block;
+ struct acpi_namespace_node *target_gpe_device;
+ struct acpi_gpe_event_info *gpe_event_info;
+ union acpi_operand_object *pkg_desc;
+ union acpi_operand_object *obj_desc;
+ u32 gpe_number;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe);
+
+ /* Check for a _PRW method under this device */
+
+ status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW,
+ ACPI_BTYPE_PACKAGE, &pkg_desc);
+ if (ACPI_FAILURE(status)) {
+
+ /* Ignore all errors from _PRW, we don't want to abort the subsystem */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* The returned _PRW package must have at least two elements */
+
+ if (pkg_desc->package.count < 2) {
+ goto cleanup;
+ }
+
+ /* Extract pointers from the input context */
+
+ gpe_device = gpe_info->gpe_device;
+ gpe_block = gpe_info->gpe_block;
+
+ /*
+ * The _PRW object must return a package, we are only interested in the
+ * first element
+ */
+ obj_desc = pkg_desc->package.elements[0];
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
+ /* Use FADT-defined GPE device (from definition of _PRW) */
+
+ target_gpe_device = acpi_gbl_fadt_gpe_device;
+
+ /* Integer is the GPE number in the FADT described GPE blocks */
+
+ gpe_number = (u32) obj_desc->integer.value;
+ } else if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
+
+ /* Package contains a GPE reference and GPE number within a GPE block */
+
+ if ((obj_desc->package.count < 2) ||
+ (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[0]) !=
+ ACPI_TYPE_LOCAL_REFERENCE)
+ || (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[1]) !=
+ ACPI_TYPE_INTEGER)) {
+ goto cleanup;
+ }
+
+ /* Get GPE block reference and decode */
+
+ target_gpe_device =
+ obj_desc->package.elements[0]->reference.node;
+ gpe_number = (u32) obj_desc->package.elements[1]->integer.value;
+ } else {
+ /* Unknown type, just ignore it */
+
+ goto cleanup;
+ }
+
+ /*
+ * Is this GPE within this block?
+ *
+ * TRUE if and only if these conditions are true:
+ * 1) The GPE devices match.
+ * 2) The GPE index(number) is within the range of the Gpe Block
+ * associated with the GPE device.
+ */
+ if ((gpe_device == target_gpe_device) &&
+ (gpe_number >= gpe_block->block_base_number) &&
+ (gpe_number <
+ gpe_block->block_base_number + (gpe_block->register_count * 8))) {
+ gpe_event_info =
+ &gpe_block->event_info[gpe_number -
+ gpe_block->block_base_number];
+
+ /* Mark GPE for WAKE-ONLY but WAKE_DISABLED */
+
+ gpe_event_info->flags &=
+ ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED);
+
+ status =
+ acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ status =
+ acpi_ev_update_gpe_enable_masks(gpe_event_info,
+ ACPI_GPE_DISABLE);
+ }
+
+ cleanup:
+ acpi_ut_remove_reference(pkg_desc);
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_get_gpe_xrupt_block
+ *
+ * PARAMETERS: interrupt_number - Interrupt for a GPE block
+ *
+ * RETURN: A GPE interrupt block
+ *
+ * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt
+ * block per unique interrupt level used for GPEs. Should be
+ * called only when the GPE lists are semaphore locked and not
+ * subject to change.
+ *
+ ******************************************************************************/
+
+static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
+ interrupt_number)
+{
+ struct acpi_gpe_xrupt_info *next_gpe_xrupt;
+ struct acpi_gpe_xrupt_info *gpe_xrupt;
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block);
+
+ /* No need for lock since we are not changing any list elements here */
+
+ next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head;
+ while (next_gpe_xrupt) {
+ if (next_gpe_xrupt->interrupt_number == interrupt_number) {
+ return_PTR(next_gpe_xrupt);
+ }
+
+ next_gpe_xrupt = next_gpe_xrupt->next;
+ }
+
+ /* Not found, must allocate a new xrupt descriptor */
+
+ gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info));
+ if (!gpe_xrupt) {
+ return_PTR(NULL);
+ }
+
+ gpe_xrupt->interrupt_number = interrupt_number;
+
+ /* Install new interrupt descriptor with spin lock */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ if (acpi_gbl_gpe_xrupt_list_head) {
+ next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head;
+ while (next_gpe_xrupt->next) {
+ next_gpe_xrupt = next_gpe_xrupt->next;
+ }
+
+ next_gpe_xrupt->next = gpe_xrupt;
+ gpe_xrupt->previous = next_gpe_xrupt;
+ } else {
+ acpi_gbl_gpe_xrupt_list_head = gpe_xrupt;
+ }
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+ /* Install new interrupt handler if not SCI_INT */
+
+ if (interrupt_number != acpi_gbl_FADT.sci_interrupt) {
+ status = acpi_os_install_interrupt_handler(interrupt_number,
+ acpi_ev_gpe_xrupt_handler,
+ gpe_xrupt);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not install GPE interrupt handler at level 0x%X",
+ interrupt_number));
+ return_PTR(NULL);
+ }
+ }
+
+ return_PTR(gpe_xrupt);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_delete_gpe_xrupt
+ *
+ * PARAMETERS: gpe_xrupt - A GPE interrupt info block
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove and free a gpe_xrupt block. Remove an associated
+ * interrupt handler if not the SCI interrupt.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt)
+{
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt);
+
+ /* We never want to remove the SCI interrupt handler */
+
+ if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) {
+ gpe_xrupt->gpe_block_list_head = NULL;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Disable this interrupt */
+
+ status =
+ acpi_os_remove_interrupt_handler(gpe_xrupt->interrupt_number,
+ acpi_ev_gpe_xrupt_handler);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Unlink the interrupt block with lock */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ if (gpe_xrupt->previous) {
+ gpe_xrupt->previous->next = gpe_xrupt->next;
+ } else {
+ /* No previous, update list head */
+
+ acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next;
+ }
+
+ if (gpe_xrupt->next) {
+ gpe_xrupt->next->previous = gpe_xrupt->previous;
+ }
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+ /* Free the block */
+
+ ACPI_FREE(gpe_xrupt);
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_gpe_block
+ *
+ * PARAMETERS: gpe_block - New GPE block
+ * interrupt_number - Xrupt to be associated with this
+ * GPE block
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install new GPE block with mutex support
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
+ u32 interrupt_number)
+{
+ struct acpi_gpe_block_info *next_gpe_block;
+ struct acpi_gpe_xrupt_info *gpe_xrupt_block;
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(ev_install_gpe_block);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number);
+ if (!gpe_xrupt_block) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ /* Install the new block at the end of the list with lock */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ if (gpe_xrupt_block->gpe_block_list_head) {
+ next_gpe_block = gpe_xrupt_block->gpe_block_list_head;
+ while (next_gpe_block->next) {
+ next_gpe_block = next_gpe_block->next;
+ }
+
+ next_gpe_block->next = gpe_block;
+ gpe_block->previous = next_gpe_block;
+ } else {
+ gpe_xrupt_block->gpe_block_list_head = gpe_block;
+ }
+
+ gpe_block->xrupt_block = gpe_xrupt_block;
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+ unlock_and_exit:
+ status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_delete_gpe_block
+ *
+ * PARAMETERS: gpe_block - Existing GPE block
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove a GPE block
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
+{
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(ev_install_gpe_block);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Disable all GPEs in this block */
+
+ status =
+ acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL);
+
+ if (!gpe_block->previous && !gpe_block->next) {
+
+ /* This is the last gpe_block on this interrupt */
+
+ status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+ } else {
+ /* Remove the block on this interrupt with lock */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ if (gpe_block->previous) {
+ gpe_block->previous->next = gpe_block->next;
+ } else {
+ gpe_block->xrupt_block->gpe_block_list_head =
+ gpe_block->next;
+ }
+
+ if (gpe_block->next) {
+ gpe_block->next->previous = gpe_block->previous;
+ }
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ }
+
+ acpi_current_gpe_count -=
+ gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH;
+
+ /* Free the gpe_block */
+
+ ACPI_FREE(gpe_block->register_info);
+ ACPI_FREE(gpe_block->event_info);
+ ACPI_FREE(gpe_block);
+
+ unlock_and_exit:
+ status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_create_gpe_info_blocks
+ *
+ * PARAMETERS: gpe_block - New GPE block
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create the register_info and event_info blocks for this GPE block
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
+{
+ struct acpi_gpe_register_info *gpe_register_info = NULL;
+ struct acpi_gpe_event_info *gpe_event_info = NULL;
+ struct acpi_gpe_event_info *this_event;
+ struct acpi_gpe_register_info *this_register;
+ u32 i;
+ u32 j;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks);
+
+ /* Allocate the GPE register information block */
+
+ gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block->
+ register_count *
+ sizeof(struct
+ acpi_gpe_register_info));
+ if (!gpe_register_info) {
+ ACPI_ERROR((AE_INFO,
+ "Could not allocate the GpeRegisterInfo table"));
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /*
+ * Allocate the GPE event_info block. There are eight distinct GPEs
+ * per register. Initialization to zeros is sufficient.
+ */
+ gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block->
+ register_count *
+ ACPI_GPE_REGISTER_WIDTH) *
+ sizeof(struct
+ acpi_gpe_event_info));
+ if (!gpe_event_info) {
+ ACPI_ERROR((AE_INFO,
+ "Could not allocate the GpeEventInfo table"));
+ status = AE_NO_MEMORY;
+ goto error_exit;
+ }
+
+ /* Save the new Info arrays in the GPE block */
+
+ gpe_block->register_info = gpe_register_info;
+ gpe_block->event_info = gpe_event_info;
+
+ /*
+ * Initialize the GPE Register and Event structures. A goal of these
+ * tables is to hide the fact that there are two separate GPE register
+ * sets in a given GPE hardware block, the status registers occupy the
+ * first half, and the enable registers occupy the second half.
+ */
+ this_register = gpe_register_info;
+ this_event = gpe_event_info;
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+
+ /* Init the register_info for this GPE register (8 GPEs) */
+
+ this_register->base_gpe_number =
+ (u8) (gpe_block->block_base_number +
+ (i * ACPI_GPE_REGISTER_WIDTH));
+
+ this_register->status_address.address =
+ gpe_block->block_address.address + i;
+
+ this_register->enable_address.address =
+ gpe_block->block_address.address + i +
+ gpe_block->register_count;
+
+ this_register->status_address.space_id =
+ gpe_block->block_address.space_id;
+ this_register->enable_address.space_id =
+ gpe_block->block_address.space_id;
+ this_register->status_address.bit_width =
+ ACPI_GPE_REGISTER_WIDTH;
+ this_register->enable_address.bit_width =
+ ACPI_GPE_REGISTER_WIDTH;
+ this_register->status_address.bit_offset = 0;
+ this_register->enable_address.bit_offset = 0;
+
+ /* Init the event_info for each GPE within this register */
+
+ for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
+ this_event->gpe_number =
+ (u8) (this_register->base_gpe_number + j);
+ this_event->register_info = this_register;
+ this_event++;
+ }
+
+ /* Disable all GPEs within this register */
+
+ status = acpi_write(0x00, &this_register->enable_address);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+
+ /* Clear any pending GPE events within this register */
+
+ status = acpi_write(0xFF, &this_register->status_address);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+
+ this_register++;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+
+ error_exit:
+ if (gpe_register_info) {
+ ACPI_FREE(gpe_register_info);
+ }
+ if (gpe_event_info) {
+ ACPI_FREE(gpe_event_info);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_create_gpe_block
+ *
+ * PARAMETERS: gpe_device - Handle to the parent GPE block
+ * gpe_block_address - Address and space_iD
+ * register_count - Number of GPE register pairs in the block
+ * gpe_block_base_number - Starting GPE number for the block
+ * interrupt_number - H/W interrupt for the block
+ * return_gpe_block - Where the new block descriptor is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create and Install a block of GPE registers. All GPEs within
+ * the block are disabled at exit.
+ * Note: Assumes namespace is locked.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
+ struct acpi_generic_address *gpe_block_address,
+ u32 register_count,
+ u8 gpe_block_base_number,
+ u32 interrupt_number,
+ struct acpi_gpe_block_info **return_gpe_block)
+{
+ acpi_status status;
+ struct acpi_gpe_block_info *gpe_block;
+
+ ACPI_FUNCTION_TRACE(ev_create_gpe_block);
+
+ if (!register_count) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Allocate a new GPE block */
+
+ gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info));
+ if (!gpe_block) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize the new GPE block */
+
+ gpe_block->node = gpe_device;
+ gpe_block->register_count = register_count;
+ gpe_block->block_base_number = gpe_block_base_number;
+
+ ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address,
+ sizeof(struct acpi_generic_address));
+
+ /*
+ * Create the register_info and event_info sub-structures
+ * Note: disables and clears all GPEs in the block
+ */
+ status = acpi_ev_create_gpe_info_blocks(gpe_block);
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(gpe_block);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Install the new block in the global lists */
+
+ status = acpi_ev_install_gpe_block(gpe_block, interrupt_number);
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(gpe_block);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Find all GPE methods (_Lxx, _Exx) for this block */
+
+ status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
+ ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
+ acpi_ev_save_method_info, gpe_block,
+ NULL);
+
+ /* Return the new block */
+
+ if (return_gpe_block) {
+ (*return_gpe_block) = gpe_block;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n",
+ (u32) gpe_block->block_base_number,
+ (u32) (gpe_block->block_base_number +
+ ((gpe_block->register_count *
+ ACPI_GPE_REGISTER_WIDTH) - 1)),
+ gpe_device->name.ascii, gpe_block->register_count,
+ interrupt_number));
+
+ /* Update global count of currently available GPEs */
+
+ acpi_current_gpe_count += register_count * ACPI_GPE_REGISTER_WIDTH;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_initialize_gpe_block
+ *
+ * PARAMETERS: gpe_device - Handle to the parent GPE block
+ * gpe_block - Gpe Block info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize and enable a GPE block. First find and run any
+ * _PRT methods associated with the block, then enable the
+ * appropriate GPEs.
+ * Note: Assumes namespace is locked.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
+ struct acpi_gpe_block_info *gpe_block)
+{
+ acpi_status status;
+ struct acpi_gpe_event_info *gpe_event_info;
+ struct acpi_gpe_walk_info gpe_info;
+ u32 wake_gpe_count;
+ u32 gpe_enabled_count;
+ u32 i;
+ u32 j;
+
+ ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
+
+ /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */
+
+ if (!gpe_block) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Runtime option: Should wake GPEs be enabled at runtime? The default
+ * is no, they should only be enabled just as the machine goes to sleep.
+ */
+ if (acpi_gbl_leave_wake_gpes_disabled) {
+ /*
+ * Differentiate runtime vs wake GPEs, via the _PRW control methods.
+ * Each GPE that has one or more _PRWs that reference it is by
+ * definition a wake GPE and will not be enabled while the machine
+ * is running.
+ */
+ gpe_info.gpe_block = gpe_block;
+ gpe_info.gpe_device = gpe_device;
+
+ status =
+ acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
+ acpi_ev_match_prw_and_gpe, &gpe_info,
+ NULL);
+ }
+
+ /*
+ * Enable all GPEs in this block that have these attributes:
+ * 1) are "runtime" or "run/wake" GPEs, and
+ * 2) have a corresponding _Lxx or _Exx method
+ *
+ * Any other GPEs within this block must be enabled via the acpi_enable_gpe()
+ * external interface.
+ */
+ wake_gpe_count = 0;
+ gpe_enabled_count = 0;
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+ for (j = 0; j < 8; j++) {
+
+ /* Get the info block for this particular GPE */
+
+ gpe_event_info =
+ &gpe_block->
+ event_info[((acpi_size) i *
+ ACPI_GPE_REGISTER_WIDTH) + j];
+
+ if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_METHOD)
+ && (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) {
+ gpe_enabled_count++;
+ }
+
+ if (gpe_event_info->flags & ACPI_GPE_TYPE_WAKE) {
+ wake_gpe_count++;
+ }
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "Found %u Wake, Enabled %u Runtime GPEs in this block\n",
+ wake_gpe_count, gpe_enabled_count));
+
+ /* Enable all valid runtime GPEs found above */
+
+ status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p",
+ gpe_block));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_gpe_initialize
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize the GPE data structures
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_gpe_initialize(void)
+{
+ u32 register_count0 = 0;
+ u32 register_count1 = 0;
+ u32 gpe_number_max = 0;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_gpe_initialize);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Initialize the GPE Block(s) defined in the FADT
+ *
+ * Why the GPE register block lengths are divided by 2: From the ACPI Spec,
+ * section "General-Purpose Event Registers", we have:
+ *
+ * "Each register block contains two registers of equal length
+ * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the
+ * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN
+ * The length of the GPE1_STS and GPE1_EN registers is equal to
+ * half the GPE1_LEN. If a generic register block is not supported
+ * then its respective block pointer and block length values in the
+ * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need
+ * to be the same size."
+ */
+
+ /*
+ * Determine the maximum GPE number for this machine.
+ *
+ * Note: both GPE0 and GPE1 are optional, and either can exist without
+ * the other.
+ *
+ * If EITHER the register length OR the block address are zero, then that
+ * particular block is not supported.
+ */
+ if (acpi_gbl_FADT.gpe0_block_length &&
+ acpi_gbl_FADT.xgpe0_block.address) {
+
+ /* GPE block 0 exists (has both length and address > 0) */
+
+ register_count0 = (u16) (acpi_gbl_FADT.gpe0_block_length / 2);
+
+ gpe_number_max =
+ (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1;
+
+ /* Install GPE Block 0 */
+
+ status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
+ &acpi_gbl_FADT.xgpe0_block,
+ register_count0, 0,
+ acpi_gbl_FADT.sci_interrupt,
+ &acpi_gbl_gpe_fadt_blocks[0]);
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not create GPE Block 0"));
+ }
+ }
+
+ if (acpi_gbl_FADT.gpe1_block_length &&
+ acpi_gbl_FADT.xgpe1_block.address) {
+
+ /* GPE block 1 exists (has both length and address > 0) */
+
+ register_count1 = (u16) (acpi_gbl_FADT.gpe1_block_length / 2);
+
+ /* Check for GPE0/GPE1 overlap (if both banks exist) */
+
+ if ((register_count0) &&
+ (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) {
+ ACPI_ERROR((AE_INFO,
+ "GPE0 block (GPE 0 to %d) overlaps the GPE1 block (GPE %d to %d) - Ignoring GPE1",
+ gpe_number_max, acpi_gbl_FADT.gpe1_base,
+ acpi_gbl_FADT.gpe1_base +
+ ((register_count1 *
+ ACPI_GPE_REGISTER_WIDTH) - 1)));
+
+ /* Ignore GPE1 block by setting the register count to zero */
+
+ register_count1 = 0;
+ } else {
+ /* Install GPE Block 1 */
+
+ status =
+ acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
+ &acpi_gbl_FADT.xgpe1_block,
+ register_count1,
+ acpi_gbl_FADT.gpe1_base,
+ acpi_gbl_FADT.
+ sci_interrupt,
+ &acpi_gbl_gpe_fadt_blocks
+ [1]);
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not create GPE Block 1"));
+ }
+
+ /*
+ * GPE0 and GPE1 do not have to be contiguous in the GPE number
+ * space. However, GPE0 always starts at GPE number zero.
+ */
+ gpe_number_max = acpi_gbl_FADT.gpe1_base +
+ ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1);
+ }
+ }
+
+ /* Exit if there are no GPE registers */
+
+ if ((register_count0 + register_count1) == 0) {
+
+ /* GPEs are not required by ACPI, this is OK */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "There are no GPE blocks defined in the FADT\n"));
+ status = AE_OK;
+ goto cleanup;
+ }
+
+ /* Check for Max GPE number out-of-range */
+
+ if (gpe_number_max > ACPI_GPE_MAX) {
+ ACPI_ERROR((AE_INFO,
+ "Maximum GPE number from FADT is too large: 0x%X",
+ gpe_number_max));
+ status = AE_BAD_VALUE;
+ goto cleanup;
+ }
+
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evmisc - Miscellaneous event manager support functions
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evmisc")
+
+/* Local prototypes */
+static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context);
+
+static u32 acpi_ev_global_lock_handler(void *context);
+
+static acpi_status acpi_ev_remove_global_lock_handler(void);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_is_notify_object
+ *
+ * PARAMETERS: Node - Node to check
+ *
+ * RETURN: TRUE if notifies allowed on this object
+ *
+ * DESCRIPTION: Check type of node for a object that supports notifies.
+ *
+ * TBD: This could be replaced by a flag bit in the node.
+ *
+ ******************************************************************************/
+
+u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node)
+{
+ switch (node->type) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+ /*
+ * These are the ONLY objects that can receive ACPI notifications
+ */
+ return (TRUE);
+
+ default:
+ return (FALSE);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_queue_notify_request
+ *
+ * PARAMETERS: Node - NS node for the notified object
+ * notify_value - Value from the Notify() request
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Dispatch a device notification event to a previously
+ * installed handler.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
+ u32 notify_value)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *handler_obj = NULL;
+ union acpi_generic_state *notify_info;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_NAME(ev_queue_notify_request);
+
+ /*
+ * For value 3 (Ejection Request), some device method may need to be run.
+ * For value 2 (Device Wake) if _PRW exists, the _PS0 method may need
+ * to be run.
+ * For value 0x80 (Status Change) on the power button or sleep button,
+ * initiate soft-off or sleep operation?
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Dispatching Notify on [%4.4s] Node %p Value 0x%2.2X (%s)\n",
+ acpi_ut_get_node_name(node), node, notify_value,
+ acpi_ut_get_notify_name(notify_value)));
+
+ /* Get the notify object attached to the NS Node */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (obj_desc) {
+
+ /* We have the notify object, Get the right handler */
+
+ switch (node->type) {
+
+ /* Notify allowed only on these types */
+
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_THERMAL:
+ case ACPI_TYPE_PROCESSOR:
+
+ if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
+ handler_obj =
+ obj_desc->common_notify.system_notify;
+ } else {
+ handler_obj =
+ obj_desc->common_notify.device_notify;
+ }
+ break;
+
+ default:
+
+ /* All other types are not supported */
+
+ return (AE_TYPE);
+ }
+ }
+
+ /*
+ * If there is any handler to run, schedule the dispatcher.
+ * Check for:
+ * 1) Global system notify handler
+ * 2) Global device notify handler
+ * 3) Per-device notify handler
+ */
+ if ((acpi_gbl_system_notify.handler
+ && (notify_value <= ACPI_MAX_SYS_NOTIFY))
+ || (acpi_gbl_device_notify.handler
+ && (notify_value > ACPI_MAX_SYS_NOTIFY)) || handler_obj) {
+ notify_info = acpi_ut_create_generic_state();
+ if (!notify_info) {
+ return (AE_NO_MEMORY);
+ }
+
+ if (!handler_obj) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Executing system notify handler for Notify (%4.4s, %X) node %p\n",
+ acpi_ut_get_node_name(node),
+ notify_value, node));
+ }
+
+ notify_info->common.descriptor_type =
+ ACPI_DESC_TYPE_STATE_NOTIFY;
+ notify_info->notify.node = node;
+ notify_info->notify.value = (u16) notify_value;
+ notify_info->notify.handler_obj = handler_obj;
+
+ status =
+ acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
+ notify_info);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_delete_generic_state(notify_info);
+ }
+ } else {
+ /* There is no notify handler (per-device or system) for this device */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "No notify handler for Notify (%4.4s, %X) node %p\n",
+ acpi_ut_get_node_name(node), notify_value,
+ node));
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_notify_dispatch
+ *
+ * PARAMETERS: Context - To be passed to the notify handler
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Dispatch a device notification event to a previously
+ * installed handler.
+ *
+ ******************************************************************************/
+
+static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context)
+{
+ union acpi_generic_state *notify_info =
+ (union acpi_generic_state *)context;
+ acpi_notify_handler global_handler = NULL;
+ void *global_context = NULL;
+ union acpi_operand_object *handler_obj;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * We will invoke a global notify handler if installed. This is done
+ * _before_ we invoke the per-device handler attached to the device.
+ */
+ if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) {
+
+ /* Global system notification handler */
+
+ if (acpi_gbl_system_notify.handler) {
+ global_handler = acpi_gbl_system_notify.handler;
+ global_context = acpi_gbl_system_notify.context;
+ }
+ } else {
+ /* Global driver notification handler */
+
+ if (acpi_gbl_device_notify.handler) {
+ global_handler = acpi_gbl_device_notify.handler;
+ global_context = acpi_gbl_device_notify.context;
+ }
+ }
+
+ /* Invoke the system handler first, if present */
+
+ if (global_handler) {
+ global_handler(notify_info->notify.node,
+ notify_info->notify.value, global_context);
+ }
+
+ /* Now invoke the per-device handler, if present */
+
+ handler_obj = notify_info->notify.handler_obj;
+ if (handler_obj) {
+ handler_obj->notify.handler(notify_info->notify.node,
+ notify_info->notify.value,
+ handler_obj->notify.context);
+ }
+
+ /* All done with the info object */
+
+ acpi_ut_delete_generic_state(notify_info);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_global_lock_handler
+ *
+ * PARAMETERS: Context - From thread interface, not used
+ *
+ * RETURN: ACPI_INTERRUPT_HANDLED
+ *
+ * DESCRIPTION: Invoked directly from the SCI handler when a global lock
+ * release interrupt occurs. Attempt to acquire the global lock,
+ * if successful, signal the thread waiting for the lock.
+ *
+ * NOTE: Assumes that the semaphore can be signaled from interrupt level. If
+ * this is not possible for some reason, a separate thread will have to be
+ * scheduled to do this.
+ *
+ ******************************************************************************/
+
+static u32 acpi_ev_global_lock_handler(void *context)
+{
+ u8 acquired = FALSE;
+
+ /*
+ * Attempt to get the lock.
+ *
+ * If we don't get it now, it will be marked pending and we will
+ * take another interrupt when it becomes free.
+ */
+ ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);
+ if (acquired) {
+
+ /* Got the lock, now wake all threads waiting for it */
+
+ acpi_gbl_global_lock_acquired = TRUE;
+ /* Send a unit to the semaphore */
+
+ if (ACPI_FAILURE
+ (acpi_os_signal_semaphore
+ (acpi_gbl_global_lock_semaphore, 1))) {
+ ACPI_ERROR((AE_INFO,
+ "Could not signal Global Lock semaphore"));
+ }
+ }
+
+ return (ACPI_INTERRUPT_HANDLED);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_init_global_lock_handler
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install a handler for the global lock release event
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_init_global_lock_handler(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_init_global_lock_handler);
+
+ /* Attempt installation of the global lock handler */
+
+ status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL,
+ acpi_ev_global_lock_handler,
+ NULL);
+
+ /*
+ * If the global lock does not exist on this platform, the attempt to
+ * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick).
+ * Map to AE_OK, but mark global lock as not present. Any attempt to
+ * actually use the global lock will be flagged with an error.
+ */
+ if (status == AE_NO_HARDWARE_RESPONSE) {
+ ACPI_ERROR((AE_INFO,
+ "No response from Global Lock hardware, disabling lock"));
+
+ acpi_gbl_global_lock_present = FALSE;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ acpi_gbl_global_lock_present = TRUE;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_remove_global_lock_handler
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove the handler for the Global Lock
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ev_remove_global_lock_handler(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_remove_global_lock_handler);
+
+ acpi_gbl_global_lock_present = FALSE;
+ status = acpi_remove_fixed_event_handler(ACPI_EVENT_GLOBAL,
+ acpi_ev_global_lock_handler);
+
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ev_acquire_global_lock
+ *
+ * PARAMETERS: Timeout - Max time to wait for the lock, in millisec.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Attempt to gain ownership of the Global Lock.
+ *
+ * MUTEX: Interpreter must be locked
+ *
+ * Note: The original implementation allowed multiple threads to "acquire" the
+ * Global Lock, and the OS would hold the lock until the last thread had
+ * released it. However, this could potentially starve the BIOS out of the
+ * lock, especially in the case where there is a tight handshake between the
+ * Embedded Controller driver and the BIOS. Therefore, this implementation
+ * allows only one thread to acquire the HW Global Lock at a time, and makes
+ * the global lock appear as a standard mutex on the OS side.
+ *
+ *****************************************************************************/
+static acpi_thread_id acpi_ev_global_lock_thread_id;
+static int acpi_ev_global_lock_acquired;
+
+acpi_status acpi_ev_acquire_global_lock(u16 timeout)
+{
+ acpi_status status = AE_OK;
+ u8 acquired = FALSE;
+
+ ACPI_FUNCTION_TRACE(ev_acquire_global_lock);
+
+ /*
+ * Only one thread can acquire the GL at a time, the global_lock_mutex
+ * enforces this. This interface releases the interpreter if we must wait.
+ */
+ status = acpi_ex_system_wait_mutex(
+ acpi_gbl_global_lock_mutex->mutex.os_mutex, 0);
+ if (status == AE_TIME) {
+ if (acpi_ev_global_lock_thread_id == acpi_os_get_thread_id()) {
+ acpi_ev_global_lock_acquired++;
+ return AE_OK;
+ }
+ }
+
+ if (ACPI_FAILURE(status)) {
+ status = acpi_ex_system_wait_mutex(
+ acpi_gbl_global_lock_mutex->mutex.os_mutex,
+ timeout);
+ }
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ acpi_ev_global_lock_thread_id = acpi_os_get_thread_id();
+ acpi_ev_global_lock_acquired++;
+
+ /*
+ * Update the global lock handle and check for wraparound. The handle is
+ * only used for the external global lock interfaces, but it is updated
+ * here to properly handle the case where a single thread may acquire the
+ * lock via both the AML and the acpi_acquire_global_lock interfaces. The
+ * handle is therefore updated on the first acquire from a given thread
+ * regardless of where the acquisition request originated.
+ */
+ acpi_gbl_global_lock_handle++;
+ if (acpi_gbl_global_lock_handle == 0) {
+ acpi_gbl_global_lock_handle = 1;
+ }
+
+ /*
+ * Make sure that a global lock actually exists. If not, just treat the
+ * lock as a standard mutex.
+ */
+ if (!acpi_gbl_global_lock_present) {
+ acpi_gbl_global_lock_acquired = TRUE;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Attempt to acquire the actual hardware lock */
+
+ ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);
+ if (acquired) {
+
+ /* We got the lock */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Acquired hardware Global Lock\n"));
+
+ acpi_gbl_global_lock_acquired = TRUE;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Did not get the lock. The pending bit was set above, and we must now
+ * wait until we get the global lock released interrupt.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Waiting for hardware Global Lock\n"));
+
+ /*
+ * Wait for handshake with the global lock interrupt handler.
+ * This interface releases the interpreter if we must wait.
+ */
+ status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,
+ ACPI_WAIT_FOREVER);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_release_global_lock
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Releases ownership of the Global Lock.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_release_global_lock(void)
+{
+ u8 pending = FALSE;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ev_release_global_lock);
+
+ /* Lock must be already acquired */
+
+ if (!acpi_gbl_global_lock_acquired) {
+ ACPI_WARNING((AE_INFO,
+ "Cannot release the ACPI Global Lock, it has not been acquired"));
+ return_ACPI_STATUS(AE_NOT_ACQUIRED);
+ }
+
+ acpi_ev_global_lock_acquired--;
+ if (acpi_ev_global_lock_acquired > 0) {
+ return AE_OK;
+ }
+
+ if (acpi_gbl_global_lock_present) {
+
+ /* Allow any thread to release the lock */
+
+ ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending);
+
+ /*
+ * If the pending bit was set, we must write GBL_RLS to the control
+ * register
+ */
+ if (pending) {
+ status =
+ acpi_set_register(ACPI_BITREG_GLOBAL_LOCK_RELEASE,
+ 1);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Released hardware Global Lock\n"));
+ }
+
+ acpi_gbl_global_lock_acquired = FALSE;
+
+ /* Release the local GL mutex */
+ acpi_ev_global_lock_thread_id = NULL;
+ acpi_ev_global_lock_acquired = 0;
+ acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex);
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ev_terminate
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: Disable events and free memory allocated for table storage.
+ *
+ ******************************************************************************/
+
+void acpi_ev_terminate(void)
+{
+ u32 i;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_terminate);
+
+ if (acpi_gbl_events_initialized) {
+ /*
+ * Disable all event-related functionality. In all cases, on error,
+ * print a message but obviously we don't abort.
+ */
+
+ /* Disable all fixed events */
+
+ for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+ status = acpi_disable_event(i, 0);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not disable fixed event %d",
+ (u32) i));
+ }
+ }
+
+ /* Disable all GPEs in all GPE blocks */
+
+ status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
+
+ /* Remove SCI handler */
+
+ status = acpi_ev_remove_sci_handler();
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO, "Could not remove SCI handler"));
+ }
+
+ status = acpi_ev_remove_global_lock_handler();
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not remove Global Lock handler"));
+ }
+ }
+
+ /* Deallocate all handler objects installed within GPE info structs */
+
+ status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL);
+
+ /* Return to original mode if necessary */
+
+ if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) {
+ status = acpi_disable();
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO, "AcpiDisable failed"));
+ }
+ }
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evregion - ACPI address_space (op_region) handler dispatch
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evregion")
+
+/* Local prototypes */
+static acpi_status
+acpi_ev_reg_run(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+
+static acpi_status
+acpi_ev_install_handler(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+
+/* These are the address spaces that will get default handlers */
+
+#define ACPI_NUM_DEFAULT_SPACES 4
+
+static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
+ ACPI_ADR_SPACE_SYSTEM_MEMORY,
+ ACPI_ADR_SPACE_SYSTEM_IO,
+ ACPI_ADR_SPACE_PCI_CONFIG,
+ ACPI_ADR_SPACE_DATA_TABLE
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_region_handlers
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Installs the core subsystem default address space handlers.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_install_region_handlers(void)
+{
+ acpi_status status;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ev_install_region_handlers);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * All address spaces (PCI Config, EC, SMBus) are scope dependent and
+ * registration must occur for a specific device.
+ *
+ * In the case of the system memory and IO address spaces there is
+ * currently no device associated with the address space. For these we
+ * use the root.
+ *
+ * We install the default PCI config space handler at the root so that
+ * this space is immediately available even though the we have not
+ * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
+ * specification which states that the PCI config space must be always
+ * available -- even though we are nowhere near ready to find the PCI root
+ * buses at this point.
+ *
+ * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
+ * has already been installed (via acpi_install_address_space_handler).
+ * Similar for AE_SAME_HANDLER.
+ */
+ for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+ status = acpi_ev_install_space_handler(acpi_gbl_root_node,
+ acpi_gbl_default_address_spaces
+ [i],
+ ACPI_DEFAULT_HANDLER,
+ NULL, NULL);
+ switch (status) {
+ case AE_OK:
+ case AE_SAME_HANDLER:
+ case AE_ALREADY_EXISTS:
+
+ /* These exceptions are all OK */
+
+ status = AE_OK;
+ break;
+
+ default:
+
+ goto unlock_and_exit;
+ }
+ }
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_initialize_op_regions
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute _REG methods for all Operation Regions that have
+ * an installed default region handler.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_initialize_op_regions(void)
+{
+ acpi_status status;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ev_initialize_op_regions);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Run the _REG methods for op_regions in each default address space */
+
+ for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
+ /*
+ * TBD: Make sure handler is the DEFAULT handler, otherwise
+ * _REG will have already been run.
+ */
+ status = acpi_ev_execute_reg_methods(acpi_gbl_root_node,
+ acpi_gbl_default_address_spaces
+ [i]);
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_execute_reg_method
+ *
+ * PARAMETERS: region_obj - Region object
+ * Function - Passed to _REG: On (1) or Off (0)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute _REG method for a region
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
+{
+ struct acpi_evaluate_info *info;
+ union acpi_operand_object *args[3];
+ union acpi_operand_object *region_obj2;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_execute_reg_method);
+
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
+ if (!region_obj2) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ if (region_obj2->extra.method_REG == NULL) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Allocate and initialize the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->prefix_node = region_obj2->extra.method_REG;
+ info->pathname = NULL;
+ info->parameters = args;
+ info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+ /*
+ * The _REG method has two arguments:
+ *
+ * Arg0 - Integer:
+ * Operation region space ID Same value as region_obj->Region.space_id
+ *
+ * Arg1 - Integer:
+ * connection status 1 for connecting the handler, 0 for disconnecting
+ * the handler (Passed as a parameter)
+ */
+ args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!args[0]) {
+ status = AE_NO_MEMORY;
+ goto cleanup1;
+ }
+
+ args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!args[1]) {
+ status = AE_NO_MEMORY;
+ goto cleanup2;
+ }
+
+ /* Setup the parameter objects */
+
+ args[0]->integer.value = region_obj->region.space_id;
+ args[1]->integer.value = function;
+ args[2] = NULL;
+
+ /* Execute the method, no return value */
+
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_METHOD, info->prefix_node, NULL));
+
+ status = acpi_ns_evaluate(info);
+ acpi_ut_remove_reference(args[1]);
+
+ cleanup2:
+ acpi_ut_remove_reference(args[0]);
+
+ cleanup1:
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_address_space_dispatch
+ *
+ * PARAMETERS: region_obj - Internal region object
+ * Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, 32, or 64)
+ * Value - Pointer to in or out value, must be
+ * full 64-bit acpi_integer
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Dispatch an address space or operation region access to
+ * a previously installed handler.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
+ u32 function,
+ acpi_physical_address address,
+ u32 bit_width, acpi_integer * value)
+{
+ acpi_status status;
+ acpi_adr_space_handler handler;
+ acpi_adr_space_setup region_setup;
+ union acpi_operand_object *handler_desc;
+ union acpi_operand_object *region_obj2;
+ void *region_context = NULL;
+
+ ACPI_FUNCTION_TRACE(ev_address_space_dispatch);
+
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
+ if (!region_obj2) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Ensure that there is a handler associated with this region */
+
+ handler_desc = region_obj->region.handler;
+ if (!handler_desc) {
+ ACPI_ERROR((AE_INFO,
+ "No handler for Region [%4.4s] (%p) [%s]",
+ acpi_ut_get_node_name(region_obj->region.node),
+ region_obj,
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /*
+ * It may be the case that the region has never been initialized.
+ * Some types of regions require special init code
+ */
+ if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
+
+ /* This region has not been initialized yet, do it */
+
+ region_setup = handler_desc->address_space.setup;
+ if (!region_setup) {
+
+ /* No initialization routine, exit with error */
+
+ ACPI_ERROR((AE_INFO,
+ "No init routine for region(%p) [%s]",
+ region_obj,
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /*
+ * We must exit the interpreter because the region setup will
+ * potentially execute control methods (for example, the _REG method
+ * for this region)
+ */
+ acpi_ex_exit_interpreter();
+
+ status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
+ handler_desc->address_space.context,
+ ®ion_context);
+
+ /* Re-enter the interpreter */
+
+ acpi_ex_enter_interpreter();
+
+ /* Check for failure of the Region Setup */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During region initialization: [%s]",
+ acpi_ut_get_region_name(region_obj->
+ region.
+ space_id)));
+ return_ACPI_STATUS(status);
+ }
+
+ /* Region initialization may have been completed by region_setup */
+
+ if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
+ region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
+
+ if (region_obj2->extra.region_context) {
+
+ /* The handler for this region was already installed */
+
+ ACPI_FREE(region_context);
+ } else {
+ /*
+ * Save the returned context for use in all accesses to
+ * this particular region
+ */
+ region_obj2->extra.region_context =
+ region_context;
+ }
+ }
+ }
+
+ /* We have everything we need, we can invoke the address space handler */
+
+ handler = handler_desc->address_space.handler;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Handler %p (@%p) Address %8.8X%8.8X [%s]\n",
+ ®ion_obj->region.handler->address_space, handler,
+ ACPI_FORMAT_NATIVE_UINT(address),
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+
+ if (!(handler_desc->address_space.handler_flags &
+ ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
+ /*
+ * For handlers other than the default (supplied) handlers, we must
+ * exit the interpreter because the handler *might* block -- we don't
+ * know what it will do, so we can't hold the lock on the intepreter.
+ */
+ acpi_ex_exit_interpreter();
+ }
+
+ /* Call the handler */
+
+ status = handler(function, address, bit_width, value,
+ handler_desc->address_space.context,
+ region_obj2->extra.region_context);
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "Returned by Handler for [%s]",
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+ }
+
+ if (!(handler_desc->address_space.handler_flags &
+ ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
+ /*
+ * We just returned from a non-default handler, we must re-enter the
+ * interpreter
+ */
+ acpi_ex_enter_interpreter();
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_detach_region
+ *
+ * PARAMETERS: region_obj - Region Object
+ * acpi_ns_is_locked - Namespace Region Already Locked?
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Break the association between the handler and the region
+ * this is a two way association.
+ *
+ ******************************************************************************/
+
+void
+acpi_ev_detach_region(union acpi_operand_object *region_obj,
+ u8 acpi_ns_is_locked)
+{
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object **last_obj_ptr;
+ acpi_adr_space_setup region_setup;
+ void **region_context;
+ union acpi_operand_object *region_obj2;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_detach_region);
+
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
+ if (!region_obj2) {
+ return_VOID;
+ }
+ region_context = ®ion_obj2->extra.region_context;
+
+ /* Get the address handler from the region object */
+
+ handler_obj = region_obj->region.handler;
+ if (!handler_obj) {
+
+ /* This region has no handler, all done */
+
+ return_VOID;
+ }
+
+ /* Find this region in the handler's list */
+
+ obj_desc = handler_obj->address_space.region_list;
+ last_obj_ptr = &handler_obj->address_space.region_list;
+
+ while (obj_desc) {
+
+ /* Is this the correct Region? */
+
+ if (obj_desc == region_obj) {
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Removing Region %p from address handler %p\n",
+ region_obj, handler_obj));
+
+ /* This is it, remove it from the handler's list */
+
+ *last_obj_ptr = obj_desc->region.next;
+ obj_desc->region.next = NULL; /* Must clear field */
+
+ if (acpi_ns_is_locked) {
+ status =
+ acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+ }
+
+ /* Now stop region accesses by executing the _REG method */
+
+ status = acpi_ev_execute_reg_method(region_obj, 0);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "from region _REG, [%s]",
+ acpi_ut_get_region_name
+ (region_obj->region.space_id)));
+ }
+
+ if (acpi_ns_is_locked) {
+ status =
+ acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+ }
+
+ /*
+ * If the region has been activated, call the setup handler with
+ * the deactivate notification
+ */
+ if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
+ region_setup = handler_obj->address_space.setup;
+ status =
+ region_setup(region_obj,
+ ACPI_REGION_DEACTIVATE,
+ handler_obj->address_space.
+ context, region_context);
+
+ /* Init routine may fail, Just ignore errors */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "from region handler - deactivate, [%s]",
+ acpi_ut_get_region_name
+ (region_obj->region.
+ space_id)));
+ }
+
+ region_obj->region.flags &=
+ ~(AOPOBJ_SETUP_COMPLETE);
+ }
+
+ /*
+ * Remove handler reference in the region
+ *
+ * NOTE: this doesn't mean that the region goes away, the region
+ * is just inaccessible as indicated to the _REG method
+ *
+ * If the region is on the handler's list, this must be the
+ * region's handler
+ */
+ region_obj->region.handler = NULL;
+ acpi_ut_remove_reference(handler_obj);
+
+ return_VOID;
+ }
+
+ /* Walk the linked list of handlers */
+
+ last_obj_ptr = &obj_desc->region.next;
+ obj_desc = obj_desc->region.next;
+ }
+
+ /* If we get here, the region was not in the handler's region list */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Cannot remove region %p from address handler %p\n",
+ region_obj, handler_obj));
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_attach_region
+ *
+ * PARAMETERS: handler_obj - Handler Object
+ * region_obj - Region Object
+ * acpi_ns_is_locked - Namespace Region Already Locked?
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Create the association between the handler and the region
+ * this is a two way association.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_attach_region(union acpi_operand_object *handler_obj,
+ union acpi_operand_object *region_obj,
+ u8 acpi_ns_is_locked)
+{
+
+ ACPI_FUNCTION_TRACE(ev_attach_region);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Adding Region [%4.4s] %p to address handler %p [%s]\n",
+ acpi_ut_get_node_name(region_obj->region.node),
+ region_obj, handler_obj,
+ acpi_ut_get_region_name(region_obj->region.
+ space_id)));
+
+ /* Link this region to the front of the handler's list */
+
+ region_obj->region.next = handler_obj->address_space.region_list;
+ handler_obj->address_space.region_list = region_obj;
+
+ /* Install the region's handler */
+
+ if (region_obj->region.handler) {
+ return_ACPI_STATUS(AE_ALREADY_EXISTS);
+ }
+
+ region_obj->region.handler = handler_obj;
+ acpi_ut_add_reference(handler_obj);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_handler
+ *
+ * PARAMETERS: walk_namespace callback
+ *
+ * DESCRIPTION: This routine installs an address handler into objects that are
+ * of type Region or Device.
+ *
+ * If the Object is a Device, and the device has a handler of
+ * the same type then the search is terminated in that branch.
+ *
+ * This is because the existing handler is closer in proximity
+ * to any more regions than the one we are trying to install.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_install_handler(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *next_handler_obj;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_NAME(ev_install_handler);
+
+ handler_obj = (union acpi_operand_object *)context;
+
+ /* Parameter validation */
+
+ if (!handler_obj) {
+ return (AE_OK);
+ }
+
+ /* Convert and validate the device handle */
+
+ node = acpi_ns_map_handle_to_node(obj_handle);
+ if (!node) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * We only care about regions and objects that are allowed to have
+ * address space handlers
+ */
+ if ((node->type != ACPI_TYPE_DEVICE) &&
+ (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
+ return (AE_OK);
+ }
+
+ /* Check for an existing internal object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+
+ /* No object, just exit */
+
+ return (AE_OK);
+ }
+
+ /* Devices are handled different than regions */
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) {
+
+ /* Check if this Device already has a handler for this address space */
+
+ next_handler_obj = obj_desc->device.handler;
+ while (next_handler_obj) {
+
+ /* Found a handler, is it for the same address space? */
+
+ if (next_handler_obj->address_space.space_id ==
+ handler_obj->address_space.space_id) {
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Found handler for region [%s] in device %p(%p) handler %p\n",
+ acpi_ut_get_region_name
+ (handler_obj->address_space.
+ space_id), obj_desc,
+ next_handler_obj,
+ handler_obj));
+
+ /*
+ * Since the object we found it on was a device, then it
+ * means that someone has already installed a handler for
+ * the branch of the namespace from this device on. Just
+ * bail out telling the walk routine to not traverse this
+ * branch. This preserves the scoping rule for handlers.
+ */
+ return (AE_CTRL_DEPTH);
+ }
+
+ /* Walk the linked list of handlers attached to this device */
+
+ next_handler_obj = next_handler_obj->address_space.next;
+ }
+
+ /*
+ * As long as the device didn't have a handler for this space we
+ * don't care about it. We just ignore it and proceed.
+ */
+ return (AE_OK);
+ }
+
+ /* Object is a Region */
+
+ if (obj_desc->region.space_id != handler_obj->address_space.space_id) {
+
+ /* This region is for a different address space, just ignore it */
+
+ return (AE_OK);
+ }
+
+ /*
+ * Now we have a region and it is for the handler's address space type.
+ *
+ * First disconnect region for any previous handler (if any)
+ */
+ acpi_ev_detach_region(obj_desc, FALSE);
+
+ /* Connect the region to the new handler */
+
+ status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE);
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_space_handler
+ *
+ * PARAMETERS: Node - Namespace node for the device
+ * space_id - The address space ID
+ * Handler - Address of the handler
+ * Setup - Address of the setup function
+ * Context - Value passed to the handler on each access
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install a handler for all op_regions of a given space_id.
+ * Assumes namespace is locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_install_space_handler(struct acpi_namespace_node * node,
+ acpi_adr_space_type space_id,
+ acpi_adr_space_handler handler,
+ acpi_adr_space_setup setup, void *context)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *handler_obj;
+ acpi_status status;
+ acpi_object_type type;
+ u8 flags = 0;
+
+ ACPI_FUNCTION_TRACE(ev_install_space_handler);
+
+ /*
+ * This registration is valid for only the types below and the root. This
+ * is where the default handlers get placed.
+ */
+ if ((node->type != ACPI_TYPE_DEVICE) &&
+ (node->type != ACPI_TYPE_PROCESSOR) &&
+ (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ if (handler == ACPI_DEFAULT_HANDLER) {
+ flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
+
+ switch (space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+ handler = acpi_ex_system_memory_space_handler;
+ setup = acpi_ev_system_memory_region_setup;
+ break;
+
+ case ACPI_ADR_SPACE_SYSTEM_IO:
+ handler = acpi_ex_system_io_space_handler;
+ setup = acpi_ev_io_space_region_setup;
+ break;
+
+ case ACPI_ADR_SPACE_PCI_CONFIG:
+ handler = acpi_ex_pci_config_space_handler;
+ setup = acpi_ev_pci_config_region_setup;
+ break;
+
+ case ACPI_ADR_SPACE_CMOS:
+ handler = acpi_ex_cmos_space_handler;
+ setup = acpi_ev_cmos_region_setup;
+ break;
+
+ case ACPI_ADR_SPACE_PCI_BAR_TARGET:
+ handler = acpi_ex_pci_bar_space_handler;
+ setup = acpi_ev_pci_bar_region_setup;
+ break;
+
+ case ACPI_ADR_SPACE_DATA_TABLE:
+ handler = acpi_ex_data_table_space_handler;
+ setup = NULL;
+ break;
+
+ default:
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+ }
+
+ /* If the caller hasn't specified a setup routine, use the default */
+
+ if (!setup) {
+ setup = acpi_ev_default_region_setup;
+ }
+
+ /* Check for an existing internal object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (obj_desc) {
+ /*
+ * The attached device object already exists. Make sure the handler
+ * is not already installed.
+ */
+ handler_obj = obj_desc->device.handler;
+
+ /* Walk the handler list for this device */
+
+ while (handler_obj) {
+
+ /* Same space_id indicates a handler already installed */
+
+ if (handler_obj->address_space.space_id == space_id) {
+ if (handler_obj->address_space.handler ==
+ handler) {
+ /*
+ * It is (relatively) OK to attempt to install the SAME
+ * handler twice. This can easily happen with the
+ * PCI_Config space.
+ */
+ status = AE_SAME_HANDLER;
+ goto unlock_and_exit;
+ } else {
+ /* A handler is already installed */
+
+ status = AE_ALREADY_EXISTS;
+ }
+ goto unlock_and_exit;
+ }
+
+ /* Walk the linked list of handlers */
+
+ handler_obj = handler_obj->address_space.next;
+ }
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Creating object on Device %p while installing handler\n",
+ node));
+
+ /* obj_desc does not exist, create one */
+
+ if (node->type == ACPI_TYPE_ANY) {
+ type = ACPI_TYPE_DEVICE;
+ } else {
+ type = node->type;
+ }
+
+ obj_desc = acpi_ut_create_internal_object(type);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ /* Init new descriptor */
+
+ obj_desc->common.type = (u8) type;
+
+ /* Attach the new object to the Node */
+
+ status = acpi_ns_attach_object(node, obj_desc, type);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
+ acpi_ut_get_region_name(space_id), space_id,
+ acpi_ut_get_node_name(node), node, obj_desc));
+
+ /*
+ * Install the handler
+ *
+ * At this point there is no existing handler. Just allocate the object
+ * for the handler and link it into the list.
+ */
+ handler_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
+ if (!handler_obj) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ /* Init handler obj */
+
+ handler_obj->address_space.space_id = (u8) space_id;
+ handler_obj->address_space.handler_flags = flags;
+ handler_obj->address_space.region_list = NULL;
+ handler_obj->address_space.node = node;
+ handler_obj->address_space.handler = handler;
+ handler_obj->address_space.context = context;
+ handler_obj->address_space.setup = setup;
+
+ /* Install at head of Device.address_space list */
+
+ handler_obj->address_space.next = obj_desc->device.handler;
+
+ /*
+ * The Device object is the first reference on the handler_obj.
+ * Each region that uses the handler adds a reference.
+ */
+ obj_desc->device.handler = handler_obj;
+
+ /*
+ * Walk the namespace finding all of the regions this
+ * handler will manage.
+ *
+ * Start at the device and search the branch toward
+ * the leaf nodes until either the leaf is encountered or
+ * a device is detected that has an address handler of the
+ * same type.
+ *
+ * In either case, back up and search down the remainder
+ * of the branch
+ */
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
+ ACPI_NS_WALK_UNLOCK,
+ acpi_ev_install_handler, handler_obj,
+ NULL);
+
+ unlock_and_exit:
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_execute_reg_methods
+ *
+ * PARAMETERS: Node - Namespace node for the device
+ * space_id - The address space ID
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Run all _REG methods for the input Space ID;
+ * Note: assumes namespace is locked, or system init time.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
+ acpi_adr_space_type space_id)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
+
+ /*
+ * Run all _REG methods for all Operation Regions for this space ID. This
+ * is a separate walk in order to handle any interdependencies between
+ * regions and _REG methods. (i.e. handlers must be installed for all
+ * regions of this Space ID before we can run any _REG methods)
+ */
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
+ ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
+ &space_id, NULL);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_reg_run
+ *
+ * PARAMETERS: walk_namespace callback
+ *
+ * DESCRIPTION: Run _REG method for region objects of the requested space_iD
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ev_reg_run(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ acpi_adr_space_type space_id;
+ acpi_status status;
+
+ space_id = *ACPI_CAST_PTR(acpi_adr_space_type, context);
+
+ /* Convert and validate the device handle */
+
+ node = acpi_ns_map_handle_to_node(obj_handle);
+ if (!node) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * We only care about regions.and objects that are allowed to have address
+ * space handlers
+ */
+ if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
+ return (AE_OK);
+ }
+
+ /* Check for an existing internal object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+
+ /* No object, just exit */
+
+ return (AE_OK);
+ }
+
+ /* Object is a Region */
+
+ if (obj_desc->region.space_id != space_id) {
+
+ /* This region is for a different address space, just ignore it */
+
+ return (AE_OK);
+ }
+
+ status = acpi_ev_execute_reg_method(obj_desc, 1);
+ return (status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evrgnini- ACPI address_space (op_region) init
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evrgnini")
+
+/* Local prototypes */
+static u8 acpi_ev_match_pci_root_bridge(char *id);
+
+static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_system_memory_region_setup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * handler_context - Address space handler context
+ * region_context - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a system_memory operation region
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_system_memory_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
+{
+ union acpi_operand_object *region_desc =
+ (union acpi_operand_object *)handle;
+ struct acpi_mem_space_context *local_region_context;
+
+ ACPI_FUNCTION_TRACE(ev_system_memory_region_setup);
+
+ if (function == ACPI_REGION_DEACTIVATE) {
+ if (*region_context) {
+ local_region_context =
+ (struct acpi_mem_space_context *)*region_context;
+
+ /* Delete a cached mapping if present */
+
+ if (local_region_context->mapped_length) {
+ acpi_os_unmap_memory(local_region_context->
+ mapped_logical_address,
+ local_region_context->
+ mapped_length);
+ }
+ ACPI_FREE(local_region_context);
+ *region_context = NULL;
+ }
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Create a new context */
+
+ local_region_context =
+ ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_mem_space_context));
+ if (!(local_region_context)) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Save the region length and address for use in the handler */
+
+ local_region_context->length = region_desc->region.length;
+ local_region_context->address = region_desc->region.address;
+
+ *region_context = local_region_context;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_io_space_region_setup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * handler_context - Address space handler context
+ * region_context - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a IO operation region
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_io_space_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
+{
+ ACPI_FUNCTION_TRACE(ev_io_space_region_setup);
+
+ if (function == ACPI_REGION_DEACTIVATE) {
+ *region_context = NULL;
+ } else {
+ *region_context = handler_context;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_pci_config_region_setup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * handler_context - Address space handler context
+ * region_context - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a PCI_Config operation region
+ *
+ * MUTEX: Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_pci_config_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
+{
+ acpi_status status = AE_OK;
+ acpi_integer pci_value;
+ struct acpi_pci_id *pci_id = *region_context;
+ union acpi_operand_object *handler_obj;
+ struct acpi_namespace_node *parent_node;
+ struct acpi_namespace_node *pci_root_node;
+ struct acpi_namespace_node *pci_device_node;
+ union acpi_operand_object *region_obj =
+ (union acpi_operand_object *)handle;
+
+ ACPI_FUNCTION_TRACE(ev_pci_config_region_setup);
+
+ handler_obj = region_obj->region.handler;
+ if (!handler_obj) {
+ /*
+ * No installed handler. This shouldn't happen because the dispatch
+ * routine checks before we get here, but we check again just in case.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Attempting to init a region %p, with no handler\n",
+ region_obj));
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ *region_context = NULL;
+ if (function == ACPI_REGION_DEACTIVATE) {
+ if (pci_id) {
+ ACPI_FREE(pci_id);
+ }
+ return_ACPI_STATUS(status);
+ }
+
+ parent_node = acpi_ns_get_parent_node(region_obj->region.node);
+
+ /*
+ * Get the _SEG and _BBN values from the device upon which the handler
+ * is installed.
+ *
+ * We need to get the _SEG and _BBN objects relative to the PCI BUS device.
+ * This is the device the handler has been registered to handle.
+ */
+
+ /*
+ * If the address_space.Node is still pointing to the root, we need
+ * to scan upward for a PCI Root bridge and re-associate the op_region
+ * handlers with that device.
+ */
+ if (handler_obj->address_space.node == acpi_gbl_root_node) {
+
+ /* Start search from the parent object */
+
+ pci_root_node = parent_node;
+ while (pci_root_node != acpi_gbl_root_node) {
+
+ /* Get the _HID/_CID in order to detect a root_bridge */
+
+ if (acpi_ev_is_pci_root_bridge(pci_root_node)) {
+
+ /* Install a handler for this PCI root bridge */
+
+ status =
+ acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_SAME_HANDLER) {
+ /*
+ * It is OK if the handler is already installed on the
+ * root bridge. Still need to return a context object
+ * for the new PCI_Config operation region, however.
+ */
+ status = AE_OK;
+ } else {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not install PciConfig handler for Root Bridge %4.4s",
+ acpi_ut_get_node_name
+ (pci_root_node)));
+ }
+ }
+ break;
+ }
+
+ pci_root_node = acpi_ns_get_parent_node(pci_root_node);
+ }
+
+ /* PCI root bridge not found, use namespace root node */
+ } else {
+ pci_root_node = handler_obj->address_space.node;
+ }
+
+ /*
+ * If this region is now initialized, we are done.
+ * (install_address_space_handler could have initialized it)
+ */
+ if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Region is still not initialized. Create a new context */
+
+ pci_id = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pci_id));
+ if (!pci_id) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /*
+ * For PCI_Config space access, we need the segment, bus, device and
+ * function numbers. Acquire them here.
+ *
+ * Find the parent device object. (This allows the operation region to be
+ * within a subscope under the device, such as a control method.)
+ */
+ pci_device_node = region_obj->region.node;
+ while (pci_device_node && (pci_device_node->type != ACPI_TYPE_DEVICE)) {
+ pci_device_node = acpi_ns_get_parent_node(pci_device_node);
+ }
+
+ if (!pci_device_node) {
+ ACPI_FREE(pci_id);
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Get the PCI device and function numbers from the _ADR object contained
+ * in the parent's scope.
+ */
+ status =
+ acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, pci_device_node,
+ &pci_value);
+
+ /*
+ * The default is zero, and since the allocation above zeroed the data,
+ * just do nothing on failure.
+ */
+ if (ACPI_SUCCESS(status)) {
+ pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value));
+ pci_id->function = ACPI_LOWORD(ACPI_LODWORD(pci_value));
+ }
+
+ /* The PCI segment number comes from the _SEG method */
+
+ status =
+ acpi_ut_evaluate_numeric_object(METHOD_NAME__SEG, pci_root_node,
+ &pci_value);
+ if (ACPI_SUCCESS(status)) {
+ pci_id->segment = ACPI_LOWORD(pci_value);
+ }
+
+ /* The PCI bus number comes from the _BBN method */
+
+ status =
+ acpi_ut_evaluate_numeric_object(METHOD_NAME__BBN, pci_root_node,
+ &pci_value);
+ if (ACPI_SUCCESS(status)) {
+ pci_id->bus = ACPI_LOWORD(pci_value);
+ }
+
+ /* Complete this device's pci_id */
+
+ acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id);
+
+ *region_context = pci_id;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_match_pci_root_bridge
+ *
+ * PARAMETERS: Id - The HID/CID in string format
+ *
+ * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
+ *
+ * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
+ *
+ ******************************************************************************/
+
+static u8 acpi_ev_match_pci_root_bridge(char *id)
+{
+
+ /*
+ * Check if this is a PCI root.
+ * ACPI 3.0+: check for a PCI Express root also.
+ */
+ if (!(ACPI_STRNCMP(id,
+ PCI_ROOT_HID_STRING,
+ sizeof(PCI_ROOT_HID_STRING))) ||
+ !(ACPI_STRNCMP(id,
+ PCI_EXPRESS_ROOT_HID_STRING,
+ sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) {
+ return (TRUE);
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_is_pci_root_bridge
+ *
+ * PARAMETERS: Node - Device node being examined
+ *
+ * RETURN: TRUE if device is a PCI/PCI-Express Root Bridge
+ *
+ * DESCRIPTION: Determine if the input device represents a PCI Root Bridge by
+ * examining the _HID and _CID for the device.
+ *
+ ******************************************************************************/
+
+static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
+{
+ acpi_status status;
+ struct acpica_device_id hid;
+ struct acpi_compatible_id_list *cid;
+ u32 i;
+
+ /* Get the _HID and check for a PCI Root Bridge */
+
+ status = acpi_ut_execute_HID(node, &hid);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+
+ if (acpi_ev_match_pci_root_bridge(hid.value)) {
+ return (TRUE);
+ }
+
+ /* The _HID did not match. Get the _CID and check for a PCI Root Bridge */
+
+ status = acpi_ut_execute_CID(node, &cid);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+
+ /* Check all _CIDs in the returned list */
+
+ for (i = 0; i < cid->count; i++) {
+ if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) {
+ ACPI_FREE(cid);
+ return (TRUE);
+ }
+ }
+
+ ACPI_FREE(cid);
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_pci_bar_region_setup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * handler_context - Address space handler context
+ * region_context - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a pci_bAR operation region
+ *
+ * MUTEX: Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_pci_bar_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
+{
+ ACPI_FUNCTION_TRACE(ev_pci_bar_region_setup);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_cmos_region_setup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * handler_context - Address space handler context
+ * region_context - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Setup a CMOS operation region
+ *
+ * MUTEX: Assumes namespace is not locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_cmos_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
+{
+ ACPI_FUNCTION_TRACE(ev_cmos_region_setup);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_default_region_setup
+ *
+ * PARAMETERS: Handle - Region we are interested in
+ * Function - Start or stop
+ * handler_context - Address space handler context
+ * region_context - Region specific context
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Default region initialization
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_default_region_setup(acpi_handle handle,
+ u32 function,
+ void *handler_context, void **region_context)
+{
+ ACPI_FUNCTION_TRACE(ev_default_region_setup);
+
+ if (function == ACPI_REGION_DEACTIVATE) {
+ *region_context = NULL;
+ } else {
+ *region_context = handler_context;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_initialize_region
+ *
+ * PARAMETERS: region_obj - Region we are initializing
+ * acpi_ns_locked - Is namespace locked?
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initializes the region, finds any _REG methods and saves them
+ * for execution at a later time
+ *
+ * Get the appropriate address space handler for a newly
+ * created region.
+ *
+ * This also performs address space specific initialization. For
+ * example, PCI regions must have an _ADR object that contains
+ * a PCI address in the scope of the definition. This address is
+ * required to perform an access to PCI config space.
+ *
+ * MUTEX: Interpreter should be unlocked, because we may run the _REG
+ * method for this region.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ev_initialize_region(union acpi_operand_object *region_obj,
+ u8 acpi_ns_locked)
+{
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *obj_desc;
+ acpi_adr_space_type space_id;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ struct acpi_namespace_node *method_node;
+ acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
+ union acpi_operand_object *region_obj2;
+
+ ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked);
+
+ if (!region_obj) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
+ if (!region_obj2) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ node = acpi_ns_get_parent_node(region_obj->region.node);
+ space_id = region_obj->region.space_id;
+
+ /* Setup defaults */
+
+ region_obj->region.handler = NULL;
+ region_obj2->extra.method_REG = NULL;
+ region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE);
+ region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
+
+ /* Find any "_REG" method associated with this region definition */
+
+ status =
+ acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
+ &method_node);
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * The _REG method is optional and there can be only one per region
+ * definition. This will be executed when the handler is attached
+ * or removed
+ */
+ region_obj2->extra.method_REG = method_node;
+ }
+
+ /*
+ * The following loop depends upon the root Node having no parent
+ * ie: acpi_gbl_root_node->parent_entry being set to NULL
+ */
+ while (node) {
+
+ /* Check to see if a handler exists */
+
+ handler_obj = NULL;
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (obj_desc) {
+
+ /* Can only be a handler if the object exists */
+
+ switch (node->type) {
+ case ACPI_TYPE_DEVICE:
+
+ handler_obj = obj_desc->device.handler;
+ break;
+
+ case ACPI_TYPE_PROCESSOR:
+
+ handler_obj = obj_desc->processor.handler;
+ break;
+
+ case ACPI_TYPE_THERMAL:
+
+ handler_obj = obj_desc->thermal_zone.handler;
+ break;
+
+ default:
+ /* Ignore other objects */
+ break;
+ }
+
+ while (handler_obj) {
+
+ /* Is this handler of the correct type? */
+
+ if (handler_obj->address_space.space_id ==
+ space_id) {
+
+ /* Found correct handler */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Found handler %p for region %p in obj %p\n",
+ handler_obj,
+ region_obj,
+ obj_desc));
+
+ status =
+ acpi_ev_attach_region(handler_obj,
+ region_obj,
+ acpi_ns_locked);
+
+ /*
+ * Tell all users that this region is usable by running the _REG
+ * method
+ */
+ if (acpi_ns_locked) {
+ status =
+ acpi_ut_release_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS
+ (status);
+ }
+ }
+
+ status =
+ acpi_ev_execute_reg_method
+ (region_obj, 1);
+
+ if (acpi_ns_locked) {
+ status =
+ acpi_ut_acquire_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS
+ (status);
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Try next handler in the list */
+
+ handler_obj = handler_obj->address_space.next;
+ }
+ }
+
+ /* This node does not have the handler we need; Pop up one level */
+
+ node = acpi_ns_get_parent_node(node);
+ }
+
+ /* If we get here, there is no handler for this region */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "No handler for RegionType %s(%X) (RegionObj %p)\n",
+ acpi_ut_get_region_name(space_id), space_id,
+ region_obj));
+
+ return_ACPI_STATUS(AE_NOT_EXIST);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: evsci - System Control Interrupt configuration and
+ * legacy to ACPI mode state transition functions
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evsci")
+
+/* Local prototypes */
+static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_sci_xrupt_handler
+ *
+ * PARAMETERS: Context - Calling Context
+ *
+ * RETURN: Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Interrupt handler that will figure out what function or
+ * control method to call to deal with a SCI.
+ *
+ ******************************************************************************/
+
+static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
+{
+ struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
+ u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
+
+ ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler);
+
+ /*
+ * We are guaranteed by the ACPI CA initialization/shutdown code that
+ * if this interrupt handler is installed, ACPI is enabled.
+ */
+
+ /*
+ * Fixed Events:
+ * Check for and dispatch any Fixed Events that have occurred
+ */
+ interrupt_handled |= acpi_ev_fixed_event_detect();
+
+ /*
+ * General Purpose Events:
+ * Check for and dispatch any GPEs that have occurred
+ */
+ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
+
+ return_UINT32(interrupt_handled);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_gpe_xrupt_handler
+ *
+ * PARAMETERS: Context - Calling Context
+ *
+ * RETURN: Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Handler for GPE Block Device interrupts
+ *
+ ******************************************************************************/
+
+u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
+{
+ struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
+ u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
+
+ ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler);
+
+ /*
+ * We are guaranteed by the ACPI CA initialization/shutdown code that
+ * if this interrupt handler is installed, ACPI is enabled.
+ */
+
+ /* GPEs: Check for and dispatch any GPEs that have occurred */
+
+ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
+
+ return_UINT32(interrupt_handled);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_sci_handler
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Installs SCI handler.
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_install_sci_handler(void)
+{
+ u32 status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ev_install_sci_handler);
+
+ status =
+ acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
+ acpi_ev_sci_xrupt_handler,
+ acpi_gbl_gpe_xrupt_list_head);
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ev_remove_sci_handler
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
+ * installed to begin with
+ *
+ * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
+ * taken.
+ *
+ * Note: It doesn't seem important to disable all events or set the event
+ * enable registers to their original values. The OS should disable
+ * the SCI interrupt level when the handler is removed, so no more
+ * events will come in.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_remove_sci_handler(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_remove_sci_handler);
+
+ /* Just let the OS remove the handler and disable the level */
+
+ status =
+ acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
+ acpi_ev_sci_xrupt_handler);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evxface - External interfaces for ACPI events
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evxface")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_exception_handler
+ *
+ * PARAMETERS: Handler - Pointer to the handler function for the
+ * event
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Saves the pointer to the handler function
+ *
+ ******************************************************************************/
+#ifdef ACPI_FUTURE_USAGE
+acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_install_exception_handler);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Don't allow two handlers. */
+
+ if (acpi_gbl_exception_handler) {
+ status = AE_ALREADY_EXISTS;
+ goto cleanup;
+ }
+
+ /* Install the handler */
+
+ acpi_gbl_exception_handler = handler;
+
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
+#endif /* ACPI_FUTURE_USAGE */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_fixed_event_handler
+ *
+ * PARAMETERS: Event - Event type to enable.
+ * Handler - Pointer to the handler function for the
+ * event
+ * Context - Value passed to the handler on each GPE
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Saves the pointer to the handler function and then enables the
+ * event.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_fixed_event_handler(u32 event,
+ acpi_event_handler handler, void *context)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler);
+
+ /* Parameter validation */
+
+ if (event > ACPI_EVENT_MAX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Don't allow two handlers. */
+
+ if (NULL != acpi_gbl_fixed_event_handlers[event].handler) {
+ status = AE_ALREADY_EXISTS;
+ goto cleanup;
+ }
+
+ /* Install the handler before enabling the event */
+
+ acpi_gbl_fixed_event_handlers[event].handler = handler;
+ acpi_gbl_fixed_event_handlers[event].context = context;
+
+ status = acpi_clear_event(event);
+ if (ACPI_SUCCESS(status))
+ status = acpi_enable_event(event, 0);
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO, "Could not enable fixed event %X",
+ event));
+
+ /* Remove the handler */
+
+ acpi_gbl_fixed_event_handlers[event].handler = NULL;
+ acpi_gbl_fixed_event_handlers[event].context = NULL;
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Enabled fixed event %X, Handler=%p\n", event,
+ handler));
+ }
+
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_fixed_event_handler
+ *
+ * PARAMETERS: Event - Event type to disable.
+ * Handler - Address of the handler
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disables the event and unregisters the event handler.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler);
+
+ /* Parameter validation */
+
+ if (event > ACPI_EVENT_MAX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Disable the event before removing the handler */
+
+ status = acpi_disable_event(event, 0);
+
+ /* Always Remove the handler */
+
+ acpi_gbl_fixed_event_handlers[event].handler = NULL;
+ acpi_gbl_fixed_event_handlers[event].context = NULL;
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO,
+ "Could not write to fixed event enable register %X",
+ event));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n",
+ event));
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_notify_handler
+ *
+ * PARAMETERS: Device - The device for which notifies will be handled
+ * handler_type - The type of handler:
+ * ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
+ * ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
+ * ACPI_ALL_NOTIFY: both system and device
+ * Handler - Address of the handler
+ * Context - Value passed to the handler on each GPE
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install a handler for notifies on an ACPI device
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_notify_handler(acpi_handle device,
+ u32 handler_type,
+ acpi_notify_handler handler, void *context)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *notify_obj;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_install_notify_handler);
+
+ /* Parameter validation */
+
+ if ((!device) ||
+ (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Convert and validate the device handle */
+
+ node = acpi_ns_map_handle_to_node(device);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /*
+ * Root Object:
+ * Registering a notify handler on the root object indicates that the
+ * caller wishes to receive notifications for all objects. Note that
+ * only one <external> global handler can be regsitered (per notify type).
+ */
+ if (device == ACPI_ROOT_OBJECT) {
+
+ /* Make sure the handler is not already installed */
+
+ if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
+ acpi_gbl_system_notify.handler) ||
+ ((handler_type & ACPI_DEVICE_NOTIFY) &&
+ acpi_gbl_device_notify.handler)) {
+ status = AE_ALREADY_EXISTS;
+ goto unlock_and_exit;
+ }
+
+ if (handler_type & ACPI_SYSTEM_NOTIFY) {
+ acpi_gbl_system_notify.node = node;
+ acpi_gbl_system_notify.handler = handler;
+ acpi_gbl_system_notify.context = context;
+ }
+
+ if (handler_type & ACPI_DEVICE_NOTIFY) {
+ acpi_gbl_device_notify.node = node;
+ acpi_gbl_device_notify.handler = handler;
+ acpi_gbl_device_notify.context = context;
+ }
+
+ /* Global notify handler installed */
+ }
+
+ /*
+ * All Other Objects:
+ * Caller will only receive notifications specific to the target object.
+ * Note that only certain object types can receive notifications.
+ */
+ else {
+ /* Notifies allowed on this object? */
+
+ if (!acpi_ev_is_notify_object(node)) {
+ status = AE_TYPE;
+ goto unlock_and_exit;
+ }
+
+ /* Check for an existing internal object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (obj_desc) {
+
+ /* Object exists - make sure there's no handler */
+
+ if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
+ obj_desc->common_notify.system_notify) ||
+ ((handler_type & ACPI_DEVICE_NOTIFY) &&
+ obj_desc->common_notify.device_notify)) {
+ status = AE_ALREADY_EXISTS;
+ goto unlock_and_exit;
+ }
+ } else {
+ /* Create a new object */
+
+ obj_desc = acpi_ut_create_internal_object(node->type);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ /* Attach new object to the Node */
+
+ status =
+ acpi_ns_attach_object(device, obj_desc, node->type);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+ }
+
+ /* Install the handler */
+
+ notify_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_NOTIFY);
+ if (!notify_obj) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ notify_obj->notify.node = node;
+ notify_obj->notify.handler = handler;
+ notify_obj->notify.context = context;
+
+ if (handler_type & ACPI_SYSTEM_NOTIFY) {
+ obj_desc->common_notify.system_notify = notify_obj;
+ }
+
+ if (handler_type & ACPI_DEVICE_NOTIFY) {
+ obj_desc->common_notify.device_notify = notify_obj;
+ }
+
+ if (handler_type == ACPI_ALL_NOTIFY) {
+
+ /* Extra ref if installed in both */
+
+ acpi_ut_add_reference(notify_obj);
+ }
+ }
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_notify_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_notify_handler
+ *
+ * PARAMETERS: Device - The device for which notifies will be handled
+ * handler_type - The type of handler:
+ * ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
+ * ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
+ * ACPI_ALL_NOTIFY: both system and device
+ * Handler - Address of the handler
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove a handler for notifies on an ACPI device
+ *
+ ******************************************************************************/
+acpi_status
+acpi_remove_notify_handler(acpi_handle device,
+ u32 handler_type, acpi_notify_handler handler)
+{
+ union acpi_operand_object *notify_obj;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_notify_handler);
+
+ /* Parameter validation */
+
+ if ((!device) ||
+ (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
+ status = AE_BAD_PARAMETER;
+ goto exit;
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Convert and validate the device handle */
+
+ node = acpi_ns_map_handle_to_node(device);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Root Object */
+
+ if (device == ACPI_ROOT_OBJECT) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Removing notify handler for namespace root object\n"));
+
+ if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
+ !acpi_gbl_system_notify.handler) ||
+ ((handler_type & ACPI_DEVICE_NOTIFY) &&
+ !acpi_gbl_device_notify.handler)) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ /* Make sure all deferred tasks are completed */
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ acpi_os_wait_events_complete(NULL);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ if (handler_type & ACPI_SYSTEM_NOTIFY) {
+ acpi_gbl_system_notify.node = NULL;
+ acpi_gbl_system_notify.handler = NULL;
+ acpi_gbl_system_notify.context = NULL;
+ }
+
+ if (handler_type & ACPI_DEVICE_NOTIFY) {
+ acpi_gbl_device_notify.node = NULL;
+ acpi_gbl_device_notify.handler = NULL;
+ acpi_gbl_device_notify.context = NULL;
+ }
+ }
+
+ /* All Other Objects */
+
+ else {
+ /* Notifies allowed on this object? */
+
+ if (!acpi_ev_is_notify_object(node)) {
+ status = AE_TYPE;
+ goto unlock_and_exit;
+ }
+
+ /* Check for an existing internal object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ /* Object exists - make sure there's an existing handler */
+
+ if (handler_type & ACPI_SYSTEM_NOTIFY) {
+ notify_obj = obj_desc->common_notify.system_notify;
+ if (!notify_obj) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ if (notify_obj->notify.handler != handler) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+ /* Make sure all deferred tasks are completed */
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ acpi_os_wait_events_complete(NULL);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Remove the handler */
+ obj_desc->common_notify.system_notify = NULL;
+ acpi_ut_remove_reference(notify_obj);
+ }
+
+ if (handler_type & ACPI_DEVICE_NOTIFY) {
+ notify_obj = obj_desc->common_notify.device_notify;
+ if (!notify_obj) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ if (notify_obj->notify.handler != handler) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+ /* Make sure all deferred tasks are completed */
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ acpi_os_wait_events_complete(NULL);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Remove the handler */
+ obj_desc->common_notify.device_notify = NULL;
+ acpi_ut_remove_reference(notify_obj);
+ }
+ }
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ exit:
+ if (ACPI_FAILURE(status))
+ ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler"));
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_gpe_handler
+ *
+ * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT
+ * defined GPEs)
+ * gpe_number - The GPE number within the GPE block
+ * Type - Whether this GPE should be treated as an
+ * edge- or level-triggered interrupt.
+ * Address - Address of the handler
+ * Context - Value passed to the handler on each GPE
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install a handler for a General Purpose Event.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_gpe_handler(acpi_handle gpe_device,
+ u32 gpe_number,
+ u32 type, acpi_event_handler address, void *context)
+{
+ struct acpi_gpe_event_info *gpe_event_info;
+ struct acpi_handler_info *handler;
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(acpi_install_gpe_handler);
+
+ /* Parameter validation */
+
+ if ((!address) || (type > ACPI_GPE_XRUPT_TYPE_MASK)) {
+ status = AE_BAD_PARAMETER;
+ goto exit;
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Make sure that there isn't a handler there already */
+
+ if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_HANDLER) {
+ status = AE_ALREADY_EXISTS;
+ goto unlock_and_exit;
+ }
+
+ /* Allocate and init handler object */
+
+ handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info));
+ if (!handler) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ handler->address = address;
+ handler->context = context;
+ handler->method_node = gpe_event_info->dispatch.method_node;
+
+ /* Disable the GPE before installing the handler */
+
+ status = acpi_ev_disable_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Install the handler */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ gpe_event_info->dispatch.handler = handler;
+
+ /* Setup up dispatch flags to indicate handler (vs. method) */
+
+ gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* Clear bits */
+ gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER);
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ exit:
+ if (ACPI_FAILURE(status))
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Installing notify handler failed"));
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_gpe_handler
+ *
+ * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT
+ * defined GPEs)
+ * gpe_number - The event to remove a handler
+ * Address - Address of the handler
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove a handler for a General Purpose acpi_event.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_remove_gpe_handler(acpi_handle gpe_device,
+ u32 gpe_number, acpi_event_handler address)
+{
+ struct acpi_gpe_event_info *gpe_event_info;
+ struct acpi_handler_info *handler;
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler);
+
+ /* Parameter validation */
+
+ if (!address) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Make sure that a handler is indeed installed */
+
+ if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) !=
+ ACPI_GPE_DISPATCH_HANDLER) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ /* Make sure that the installed handler is the same */
+
+ if (gpe_event_info->dispatch.handler->address != address) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Disable the GPE before removing the handler */
+
+ status = acpi_ev_disable_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Make sure all deferred tasks are completed */
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ acpi_os_wait_events_complete(NULL);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Remove the handler */
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ handler = gpe_event_info->dispatch.handler;
+
+ /* Restore Method node (if any), set dispatch flags */
+
+ gpe_event_info->dispatch.method_node = handler->method_node;
+ gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; /* Clear bits */
+ if (handler->method_node) {
+ gpe_event_info->flags |= ACPI_GPE_DISPATCH_METHOD;
+ }
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+
+ /* Now we can free the handler object */
+
+ ACPI_FREE(handler);
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_acquire_global_lock
+ *
+ * PARAMETERS: Timeout - How long the caller is willing to wait
+ * Handle - Where the handle to the lock is returned
+ * (if acquired)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Acquire the ACPI Global Lock
+ *
+ * Note: Allows callers with the same thread ID to acquire the global lock
+ * multiple times. In other words, externally, the behavior of the global lock
+ * is identical to an AML mutex. On the first acquire, a new handle is
+ * returned. On any subsequent calls to acquire by the same thread, the same
+ * handle is returned.
+ *
+ ******************************************************************************/
+acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
+{
+ acpi_status status;
+
+ if (!handle) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Must lock interpreter to prevent race conditions */
+
+ acpi_ex_enter_interpreter();
+
+ status = acpi_ex_acquire_mutex_object(timeout,
+ acpi_gbl_global_lock_mutex,
+ acpi_os_get_thread_id());
+
+ if (ACPI_SUCCESS(status)) {
+
+ /* Return the global lock handle (updated in acpi_ev_acquire_global_lock) */
+
+ *handle = acpi_gbl_global_lock_handle;
+ }
+
+ acpi_ex_exit_interpreter();
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_release_global_lock
+ *
+ * PARAMETERS: Handle - Returned from acpi_acquire_global_lock
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid.
+ *
+ ******************************************************************************/
+acpi_status acpi_release_global_lock(u32 handle)
+{
+ acpi_status status;
+
+ if (!handle || (handle != acpi_gbl_global_lock_handle)) {
+ return (AE_NOT_ACQUIRED);
+ }
+
+ status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_release_global_lock)
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evxfevnt")
+
+/* Local prototypes */
+acpi_status
+acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enable
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Transfers the system into ACPI mode.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_enable(void)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(acpi_enable);
+
+ /* ACPI tables must be present */
+
+ if (!acpi_tb_tables_loaded()) {
+ return_ACPI_STATUS(AE_NO_ACPI_TABLES);
+ }
+
+ /* Check current mode */
+
+ if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "System is already in ACPI mode\n"));
+ } else {
+ /* Transition to ACPI mode */
+
+ status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not transition to ACPI mode"));
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "Transition to ACPI mode successful\n"));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enable)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_disable
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode.
+ *
+ ******************************************************************************/
+acpi_status acpi_disable(void)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(acpi_disable);
+
+ if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "System is already in legacy (non-ACPI) mode\n"));
+ } else {
+ /* Transition to LEGACY mode */
+
+ status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY);
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not exit ACPI mode to legacy mode"));
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n"));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_disable)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enable_event
+ *
+ * PARAMETERS: Event - The fixed eventto be enabled
+ * Flags - Reserved
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable an ACPI event (fixed)
+ *
+ ******************************************************************************/
+acpi_status acpi_enable_event(u32 event, u32 flags)
+{
+ acpi_status status = AE_OK;
+ u32 value;
+
+ ACPI_FUNCTION_TRACE(acpi_enable_event);
+
+ /* Decode the Fixed Event */
+
+ if (event > ACPI_EVENT_MAX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Enable the requested fixed event (by writing a one to the enable
+ * register bit)
+ */
+ status =
+ acpi_set_register(acpi_gbl_fixed_event_info[event].
+ enable_register_id, 1);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Make sure that the hardware responded */
+
+ status =
+ acpi_get_register(acpi_gbl_fixed_event_info[event].
+ enable_register_id, &value);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (value != 1) {
+ ACPI_ERROR((AE_INFO,
+ "Could not enable %s event",
+ acpi_ut_get_event_name(event)));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enable_event)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_gpe_type
+ *
+ * PARAMETERS: gpe_device - Parent GPE Device
+ * gpe_number - GPE level within the GPE block
+ * Type - New GPE type
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Set the type of an individual GPE
+ *
+ ******************************************************************************/
+acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type)
+{
+ acpi_status status = AE_OK;
+ struct acpi_gpe_event_info *gpe_event_info;
+
+ ACPI_FUNCTION_TRACE(acpi_set_gpe_type);
+
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Set the new type (will disable GPE if currently enabled) */
+
+ status = acpi_ev_set_gpe_type(gpe_event_info, type);
+
+ unlock_and_exit:
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_gpe_type)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enable_gpe
+ *
+ * PARAMETERS: gpe_device - Parent GPE Device
+ * gpe_number - GPE level within the GPE block
+ * Flags - Just enable, or also wake enable?
+ * Called from ISR or not
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable an ACPI event (general purpose)
+ *
+ ******************************************************************************/
+acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number)
+{
+ acpi_status status = AE_OK;
+ acpi_cpu_flags flags;
+ struct acpi_gpe_event_info *gpe_event_info;
+
+ ACPI_FUNCTION_TRACE(acpi_enable_gpe);
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Perform the enable */
+
+ status = acpi_ev_enable_gpe(gpe_event_info, TRUE);
+
+ unlock_and_exit:
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enable_gpe)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_disable_gpe
+ *
+ * PARAMETERS: gpe_device - Parent GPE Device
+ * gpe_number - GPE level within the GPE block
+ * Flags - Just disable, or also wake disable?
+ * Called from ISR or not
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable an ACPI event (general purpose)
+ *
+ ******************************************************************************/
+acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
+{
+ acpi_status status = AE_OK;
+ acpi_cpu_flags flags;
+ struct acpi_gpe_event_info *gpe_event_info;
+
+ ACPI_FUNCTION_TRACE(acpi_disable_gpe);
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ status = acpi_ev_disable_gpe(gpe_event_info);
+
+unlock_and_exit:
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_disable_gpe)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_disable_event
+ *
+ * PARAMETERS: Event - The fixed eventto be enabled
+ * Flags - Reserved
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable an ACPI event (fixed)
+ *
+ ******************************************************************************/
+acpi_status acpi_disable_event(u32 event, u32 flags)
+{
+ acpi_status status = AE_OK;
+ u32 value;
+
+ ACPI_FUNCTION_TRACE(acpi_disable_event);
+
+ /* Decode the Fixed Event */
+
+ if (event > ACPI_EVENT_MAX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Disable the requested fixed event (by writing a zero to the enable
+ * register bit)
+ */
+ status =
+ acpi_set_register(acpi_gbl_fixed_event_info[event].
+ enable_register_id, 0);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status =
+ acpi_get_register(acpi_gbl_fixed_event_info[event].
+ enable_register_id, &value);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (value != 0) {
+ ACPI_ERROR((AE_INFO,
+ "Could not disable %s events",
+ acpi_ut_get_event_name(event)));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_disable_event)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_clear_event
+ *
+ * PARAMETERS: Event - The fixed event to be cleared
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Clear an ACPI event (fixed)
+ *
+ ******************************************************************************/
+acpi_status acpi_clear_event(u32 event)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(acpi_clear_event);
+
+ /* Decode the Fixed Event */
+
+ if (event > ACPI_EVENT_MAX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Clear the requested fixed event (By writing a one to the status
+ * register bit)
+ */
+ status =
+ acpi_set_register(acpi_gbl_fixed_event_info[event].
+ status_register_id, 1);
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_clear_event)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_clear_gpe
+ *
+ * PARAMETERS: gpe_device - Parent GPE Device
+ * gpe_number - GPE level within the GPE block
+ * Flags - Called from an ISR or not
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Clear an ACPI event (general purpose)
+ *
+ ******************************************************************************/
+acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
+{
+ acpi_status status = AE_OK;
+ struct acpi_gpe_event_info *gpe_event_info;
+
+ ACPI_FUNCTION_TRACE(acpi_clear_gpe);
+
+ /* Use semaphore lock if not executing at interrupt level */
+
+ if (flags & ACPI_NOT_ISR) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ status = acpi_hw_clear_gpe(gpe_event_info);
+
+ unlock_and_exit:
+ if (flags & ACPI_NOT_ISR) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ }
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_event_status
+ *
+ * PARAMETERS: Event - The fixed event
+ * event_status - Where the current status of the event will
+ * be returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Obtains and returns the current status of the event
+ *
+ ******************************************************************************/
+acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
+{
+ acpi_status status = AE_OK;
+ u32 value;
+
+ ACPI_FUNCTION_TRACE(acpi_get_event_status);
+
+ if (!event_status) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Decode the Fixed Event */
+
+ if (event > ACPI_EVENT_MAX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Get the status of the requested fixed event */
+
+ status =
+ acpi_get_register(acpi_gbl_fixed_event_info[event].
+ enable_register_id, &value);
+ if (ACPI_FAILURE(status))
+ return_ACPI_STATUS(status);
+
+ *event_status = value;
+
+ status =
+ acpi_get_register(acpi_gbl_fixed_event_info[event].
+ status_register_id, &value);
+ if (ACPI_FAILURE(status))
+ return_ACPI_STATUS(status);
+
+ if (value)
+ *event_status |= ACPI_EVENT_FLAG_SET;
+
+ if (acpi_gbl_fixed_event_handlers[event].handler)
+ *event_status |= ACPI_EVENT_FLAG_HANDLE;
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_event_status)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_gpe_status
+ *
+ * PARAMETERS: gpe_device - Parent GPE Device
+ * gpe_number - GPE level within the GPE block
+ * Flags - Called from an ISR or not
+ * event_status - Where the current status of the event will
+ * be returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get status of an event (general purpose)
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_gpe_status(acpi_handle gpe_device,
+ u32 gpe_number, u32 flags, acpi_event_status * event_status)
+{
+ acpi_status status = AE_OK;
+ struct acpi_gpe_event_info *gpe_event_info;
+
+ ACPI_FUNCTION_TRACE(acpi_get_gpe_status);
+
+ /* Use semaphore lock if not executing at interrupt level */
+
+ if (flags & ACPI_NOT_ISR) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Ensure that we have a valid GPE number */
+
+ gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
+ if (!gpe_event_info) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Obtain status on the requested GPE number */
+
+ status = acpi_hw_get_gpe_status(gpe_event_info, event_status);
+
+ if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
+ *event_status |= ACPI_EVENT_FLAG_HANDLE;
+
+ unlock_and_exit:
+ if (flags & ACPI_NOT_ISR) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ }
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_gpe_block
+ *
+ * PARAMETERS: gpe_device - Handle to the parent GPE Block Device
+ * gpe_block_address - Address and space_iD
+ * register_count - Number of GPE register pairs in the block
+ * interrupt_number - H/W interrupt for the block
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create and Install a block of GPE registers
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_gpe_block(acpi_handle gpe_device,
+ struct acpi_generic_address *gpe_block_address,
+ u32 register_count, u32 interrupt_number)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ struct acpi_gpe_block_info *gpe_block;
+
+ ACPI_FUNCTION_TRACE(acpi_install_gpe_block);
+
+ if ((!gpe_device) || (!gpe_block_address) || (!register_count)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ node = acpi_ns_map_handle_to_node(gpe_device);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /*
+ * For user-installed GPE Block Devices, the gpe_block_base_number
+ * is always zero
+ */
+ status =
+ acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0,
+ interrupt_number, &gpe_block);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Run the _PRW methods and enable the GPEs */
+
+ status = acpi_ev_initialize_gpe_block(node, gpe_block);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Get the device_object attached to the node */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+
+ /* No object, create a new one */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ status =
+ acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+ }
+
+ /* Install the GPE block in the device_object */
+
+ obj_desc->device.gpe_block = gpe_block;
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_gpe_block)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_gpe_block
+ *
+ * PARAMETERS: gpe_device - Handle to the parent GPE Block Device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove a previously installed block of GPE registers
+ *
+ ******************************************************************************/
+acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_gpe_block);
+
+ if (!gpe_device) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ node = acpi_ns_map_handle_to_node(gpe_device);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Get the device_object attached to the node */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc || !obj_desc->device.gpe_block) {
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
+ /* Delete the GPE block (but not the device_object) */
+
+ status = acpi_ev_delete_gpe_block(obj_desc->device.gpe_block);
+ if (ACPI_SUCCESS(status)) {
+ obj_desc->device.gpe_block = NULL;
+ }
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_gpe_device
+ *
+ * PARAMETERS: Index - System GPE index (0-current_gpe_count)
+ * gpe_device - Where the parent GPE Device is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Obtain the GPE device associated with the input index. A NULL
+ * gpe device indicates that the gpe number is contained in one of
+ * the FADT-defined gpe blocks. Otherwise, the GPE block device.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_gpe_device(u32 index, acpi_handle *gpe_device)
+{
+ struct acpi_gpe_device_info info;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_gpe_device);
+
+ if (!gpe_device) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (index >= acpi_current_gpe_count) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Setup and walk the GPE list */
+
+ info.index = index;
+ info.status = AE_NOT_EXIST;
+ info.gpe_device = NULL;
+ info.next_block_base_index = 0;
+
+ status = acpi_ev_walk_gpe_list(acpi_ev_get_gpe_device, &info);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ *gpe_device = info.gpe_device;
+ return_ACPI_STATUS(info.status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_gpe_device)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_get_gpe_device
+ *
+ * PARAMETERS: GPE_WALK_CALLBACK
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE
+ * block device. NULL if the GPE is one of the FADT-defined GPEs.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
+{
+ struct acpi_gpe_device_info *info = context;
+
+ /* Increment Index by the number of GPEs in this block */
+
+ info->next_block_base_index +=
+ (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH);
+
+ if (info->index < info->next_block_base_index) {
+ /*
+ * The GPE index is within this block, get the node. Leave the node
+ * NULL for the FADT-defined GPEs
+ */
+ if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) {
+ info->gpe_device = gpe_block->node;
+ }
+
+ info->status = AE_OK;
+ return (AE_CTRL_END);
+ }
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_disable_all_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable and clear all GPEs in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_disable_all_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_disable_all_gpes);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_disable_all_gpes();
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_enable_all_runtime_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_enable_all_runtime_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_enable_all_runtime_gpes);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_enable_all_runtime_gpes();
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: evxfregn - External Interfaces, ACPI Operation Regions and
+ * Address Spaces.
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evxfregn")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_address_space_handler
+ *
+ * PARAMETERS: Device - Handle for the device
+ * space_id - The address space ID
+ * Handler - Address of the handler
+ * Setup - Address of the setup function
+ * Context - Value passed to the handler on each access
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install a handler for all op_regions of a given space_id.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_address_space_handler(acpi_handle device,
+ acpi_adr_space_type space_id,
+ acpi_adr_space_handler handler,
+ acpi_adr_space_setup setup, void *context)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_install_address_space_handler);
+
+ /* Parameter validation */
+
+ if (!device) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Convert and validate the device handle */
+
+ node = acpi_ns_map_handle_to_node(device);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Install the handler for all Regions for this Space ID */
+
+ status =
+ acpi_ev_install_space_handler(node, space_id, handler, setup,
+ context);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Run all _REG methods for this address space */
+
+ status = acpi_ev_execute_reg_methods(node, space_id);
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_address_space_handler
+ *
+ * PARAMETERS: Device - Handle for the device
+ * space_id - The address space ID
+ * Handler - Address of the handler
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove a previously installed handler.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_remove_address_space_handler(acpi_handle device,
+ acpi_adr_space_type space_id,
+ acpi_adr_space_handler handler)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *handler_obj;
+ union acpi_operand_object *region_obj;
+ union acpi_operand_object **last_obj_ptr;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler);
+
+ /* Parameter validation */
+
+ if (!device) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Convert and validate the device handle */
+
+ node = acpi_ns_map_handle_to_node(device);
+ if (!node ||
+ ((node->type != ACPI_TYPE_DEVICE) &&
+ (node->type != ACPI_TYPE_PROCESSOR) &&
+ (node->type != ACPI_TYPE_THERMAL) &&
+ (node != acpi_gbl_root_node))) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Make sure the internal object exists */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ status = AE_NOT_EXIST;
+ goto unlock_and_exit;
+ }
+
+ /* Find the address handler the user requested */
+
+ handler_obj = obj_desc->device.handler;
+ last_obj_ptr = &obj_desc->device.handler;
+ while (handler_obj) {
+
+ /* We have a handler, see if user requested this one */
+
+ if (handler_obj->address_space.space_id == space_id) {
+
+ /* Handler must be the same as the installed handler */
+
+ if (handler_obj->address_space.handler != handler) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Matched space_id, first dereference this in the Regions */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Removing address handler %p(%p) for region %s on Device %p(%p)\n",
+ handler_obj, handler,
+ acpi_ut_get_region_name(space_id),
+ node, obj_desc));
+
+ region_obj = handler_obj->address_space.region_list;
+
+ /* Walk the handler's region list */
+
+ while (region_obj) {
+ /*
+ * First disassociate the handler from the region.
+ *
+ * NOTE: this doesn't mean that the region goes away
+ * The region is just inaccessible as indicated to
+ * the _REG method
+ */
+ acpi_ev_detach_region(region_obj, TRUE);
+
+ /*
+ * Walk the list: Just grab the head because the
+ * detach_region removed the previous head.
+ */
+ region_obj =
+ handler_obj->address_space.region_list;
+
+ }
+
+ /* Remove this Handler object from the list */
+
+ *last_obj_ptr = handler_obj->address_space.next;
+
+ /* Now we can delete the handler object */
+
+ acpi_ut_remove_reference(handler_obj);
+ goto unlock_and_exit;
+ }
+
+ /* Walk the linked list of handlers */
+
+ last_obj_ptr = &handler_obj->address_space.next;
+ handler_obj = handler_obj->address_space.next;
+ }
+
+ /* The handler does not exist */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+ "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n",
+ handler, acpi_ut_get_region_name(space_id), space_id,
+ node, obj_desc));
+
+ status = AE_NOT_EXIST;
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler)
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/actables.h>
+#include <acpi/acdispat.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exconfig")
+
+/* Local prototypes */
+static acpi_status
+acpi_ex_add_table(u32 table_index,
+ struct acpi_namespace_node *parent_node,
+ union acpi_operand_object **ddb_handle);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_add_table
+ *
+ * PARAMETERS: Table - Pointer to raw table
+ * parent_node - Where to load the table (scope)
+ * ddb_handle - Where to return the table handle.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Common function to Install and Load an ACPI table with a
+ * returned table handle.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_add_table(u32 table_index,
+ struct acpi_namespace_node *parent_node,
+ union acpi_operand_object **ddb_handle)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE(ex_add_table);
+
+ /* Create an object to be the table handle */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Init the table handle */
+
+ obj_desc->reference.class = ACPI_REFCLASS_TABLE;
+ *ddb_handle = obj_desc;
+
+ /* Install the new table into the local data structures */
+
+ obj_desc->reference.value = table_index;
+
+ /* Add the table to the namespace */
+
+ status = acpi_ns_load_table(table_index, parent_node);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(obj_desc);
+ *ddb_handle = NULL;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_load_table_op
+ *
+ * PARAMETERS: walk_state - Current state with operands
+ * return_desc - Where to store the return object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load an ACPI table from the RSDT/XSDT
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
+ union acpi_operand_object **return_desc)
+{
+ acpi_status status;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ struct acpi_namespace_node *parent_node;
+ struct acpi_namespace_node *start_node;
+ struct acpi_namespace_node *parameter_node = NULL;
+ union acpi_operand_object *ddb_handle;
+ struct acpi_table_header *table;
+ u32 table_index;
+
+ ACPI_FUNCTION_TRACE(ex_load_table_op);
+
+ /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */
+
+ if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
+ (operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
+ (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Find the ACPI table in the RSDT/XSDT */
+
+ status = acpi_tb_find_table(operand[0]->string.pointer,
+ operand[1]->string.pointer,
+ operand[2]->string.pointer, &table_index);
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_NOT_FOUND) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Table not found, return an Integer=0 and AE_OK */
+
+ ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!ddb_handle) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ ddb_handle->integer.value = 0;
+ *return_desc = ddb_handle;
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Default nodes */
+
+ start_node = walk_state->scope_info->scope.node;
+ parent_node = acpi_gbl_root_node;
+
+ /* root_path (optional parameter) */
+
+ if (operand[3]->string.length > 0) {
+ /*
+ * Find the node referenced by the root_path_string. This is the
+ * location within the namespace where the table will be loaded.
+ */
+ status =
+ acpi_ns_get_node(start_node, operand[3]->string.pointer,
+ ACPI_NS_SEARCH_PARENT, &parent_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* parameter_path (optional parameter) */
+
+ if (operand[4]->string.length > 0) {
+ if ((operand[4]->string.pointer[0] != '\\') &&
+ (operand[4]->string.pointer[0] != '^')) {
+ /*
+ * Path is not absolute, so it will be relative to the node
+ * referenced by the root_path_string (or the NS root if omitted)
+ */
+ start_node = parent_node;
+ }
+
+ /* Find the node referenced by the parameter_path_string */
+
+ status =
+ acpi_ns_get_node(start_node, operand[4]->string.pointer,
+ ACPI_NS_SEARCH_PARENT, ¶meter_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Load the table into the namespace */
+
+ status = acpi_ex_add_table(table_index, parent_node, &ddb_handle);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Parameter Data (optional) */
+
+ if (parameter_node) {
+
+ /* Store the parameter data into the optional parameter object */
+
+ status = acpi_ex_store(operand[5],
+ ACPI_CAST_PTR(union acpi_operand_object,
+ parameter_node),
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ (void)acpi_ex_unload_table(ddb_handle);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_SUCCESS(status)) {
+ ACPI_INFO((AE_INFO,
+ "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]",
+ table->signature, table->oem_id,
+ table->oem_table_id));
+ }
+
+ /* Invoke table handler if present */
+
+ if (acpi_gbl_table_handler) {
+ (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
+ acpi_gbl_table_handler_context);
+ }
+
+ *return_desc = ddb_handle;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_load_op
+ *
+ * PARAMETERS: obj_desc - Region or Buffer/Field where the table will be
+ * obtained
+ * Target - Where a handle to the table will be stored
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load an ACPI table from a field or operation region
+ *
+ * NOTE: Region Fields (Field, bank_field, index_fields) are resolved to buffer
+ * objects before this code is reached.
+ *
+ * If source is an operation region, it must refer to system_memory, as
+ * per the ACPI specification.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_load_op(union acpi_operand_object *obj_desc,
+ union acpi_operand_object *target,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *ddb_handle;
+ struct acpi_table_header *table;
+ struct acpi_table_desc table_desc;
+ u32 table_index;
+ acpi_status status;
+ u32 length;
+
+ ACPI_FUNCTION_TRACE(ex_load_op);
+
+ ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
+
+ /* Source Object can be either an op_region or a Buffer/Field */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_REGION:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Load table from Region %p\n", obj_desc));
+
+ /* Region must be system_memory (from ACPI spec) */
+
+ if (obj_desc->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) {
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * If the Region Address and Length have not been previously evaluated,
+ * evaluate them now and save the results.
+ */
+ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
+ status = acpi_ds_get_region_arguments(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Map the table header and get the actual table length. The region
+ * length is not guaranteed to be the same as the table length.
+ */
+ table = acpi_os_map_memory(obj_desc->region.address,
+ sizeof(struct acpi_table_header));
+ if (!table) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ length = table->length;
+ acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+
+ /* Must have at least an ACPI table header */
+
+ if (length < sizeof(struct acpi_table_header)) {
+ return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
+ }
+
+ /*
+ * The memory region is not guaranteed to remain stable and we must
+ * copy the table to a local buffer. For example, the memory region
+ * is corrupted after suspend on some machines. Dynamically loaded
+ * tables are usually small, so this overhead is minimal.
+ */
+
+ /* Allocate a buffer for the table */
+
+ table_desc.pointer = ACPI_ALLOCATE(length);
+ if (!table_desc.pointer) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Map the entire table and copy it */
+
+ table = acpi_os_map_memory(obj_desc->region.address, length);
+ if (!table) {
+ ACPI_FREE(table_desc.pointer);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ ACPI_MEMCPY(table_desc.pointer, table, length);
+ acpi_os_unmap_memory(table, length);
+
+ table_desc.address = obj_desc->region.address;
+ break;
+
+ case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Load table from Buffer or Field %p\n",
+ obj_desc));
+
+ /* Must have at least an ACPI table header */
+
+ if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) {
+ return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
+ }
+
+ /* Get the actual table length from the table header */
+
+ table =
+ ACPI_CAST_PTR(struct acpi_table_header,
+ obj_desc->buffer.pointer);
+ length = table->length;
+
+ /* Table cannot extend beyond the buffer */
+
+ if (length > obj_desc->buffer.length) {
+ return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
+ }
+ if (length < sizeof(struct acpi_table_header)) {
+ return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
+ }
+
+ /*
+ * Copy the table from the buffer because the buffer could be modified
+ * or even deleted in the future
+ */
+ table_desc.pointer = ACPI_ALLOCATE(length);
+ if (!table_desc.pointer) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ ACPI_MEMCPY(table_desc.pointer, table, length);
+ table_desc.address = ACPI_TO_INTEGER(table_desc.pointer);
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* Validate table checksum (will not get validated in tb_add_table) */
+
+ status = acpi_tb_verify_checksum(table_desc.pointer, length);
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(table_desc.pointer);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Complete the table descriptor */
+
+ table_desc.length = length;
+ table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED;
+
+ /* Install the new table into the local data structures */
+
+ status = acpi_tb_add_table(&table_desc, &table_index);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * Add the table to the namespace.
+ *
+ * Note: Load the table objects relative to the root of the namespace.
+ * This appears to go against the ACPI specification, but we do it for
+ * compatibility with other ACPI implementations.
+ */
+ status =
+ acpi_ex_add_table(table_index, acpi_gbl_root_node, &ddb_handle);
+ if (ACPI_FAILURE(status)) {
+
+ /* On error, table_ptr was deallocated above */
+
+ return_ACPI_STATUS(status);
+ }
+
+ /* Store the ddb_handle into the Target operand */
+
+ status = acpi_ex_store(ddb_handle, target, walk_state);
+ if (ACPI_FAILURE(status)) {
+ (void)acpi_ex_unload_table(ddb_handle);
+
+ /* table_ptr was deallocated above */
+
+ acpi_ut_remove_reference(ddb_handle);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Invoke table handler if present */
+
+ if (acpi_gbl_table_handler) {
+ (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD,
+ table_desc.pointer,
+ acpi_gbl_table_handler_context);
+ }
+
+ cleanup:
+ if (ACPI_FAILURE(status)) {
+
+ /* Delete allocated table buffer */
+
+ acpi_tb_delete_table(&table_desc);
+ }
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_unload_table
+ *
+ * PARAMETERS: ddb_handle - Handle to a previously loaded table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Unload an ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *table_desc = ddb_handle;
+ u32 table_index;
+ struct acpi_table_header *table;
+
+ ACPI_FUNCTION_TRACE(ex_unload_table);
+
+ /*
+ * Validate the handle
+ * Although the handle is partially validated in acpi_ex_reconfiguration(),
+ * when it calls acpi_ex_resolve_operands(), the handle is more completely
+ * validated here.
+ */
+ if ((!ddb_handle) ||
+ (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) ||
+ (ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Get the table index from the ddb_handle */
+
+ table_index = table_desc->reference.value;
+
+ /* Invoke table handler if present */
+
+ if (acpi_gbl_table_handler) {
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_SUCCESS(status)) {
+ (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD,
+ table,
+ acpi_gbl_table_handler_context);
+ }
+ }
+
+ /*
+ * Delete the entire namespace under this table Node
+ * (Offset contains the table_id)
+ */
+ acpi_tb_delete_namespace_by_owner(table_index);
+ (void)acpi_tb_release_owner_id(table_index);
+
+ acpi_tb_set_table_loaded_flag(table_index, FALSE);
+
+ /* Table unloaded, remove a reference to the ddb_handle object */
+
+ acpi_ut_remove_reference(ddb_handle);
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: exconvrt - Object conversion routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exconvrt")
+
+/* Local prototypes */
+static u32
+acpi_ex_convert_to_ascii(acpi_integer integer,
+ u16 base, u8 * string, u8 max_length);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_convert_to_integer
+ *
+ * PARAMETERS: obj_desc - Object to be converted. Must be an
+ * Integer, Buffer, or String
+ * result_desc - Where the new Integer object is returned
+ * Flags - Used for string conversion
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an ACPI Object to an integer.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
+ union acpi_operand_object **result_desc, u32 flags)
+{
+ union acpi_operand_object *return_desc;
+ u8 *pointer;
+ acpi_integer result;
+ u32 i;
+ u32 count;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc);
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* No conversion necessary */
+
+ *result_desc = obj_desc;
+ return_ACPI_STATUS(AE_OK);
+
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_STRING:
+
+ /* Note: Takes advantage of common buffer/string fields */
+
+ pointer = obj_desc->buffer.pointer;
+ count = obj_desc->buffer.length;
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ /*
+ * Convert the buffer/string to an integer. Note that both buffers and
+ * strings are treated as raw data - we don't convert ascii to hex for
+ * strings.
+ *
+ * There are two terminating conditions for the loop:
+ * 1) The size of an integer has been reached, or
+ * 2) The end of the buffer or string has been reached
+ */
+ result = 0;
+
+ /* String conversion is different than Buffer conversion */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_STRING:
+
+ /*
+ * Convert string to an integer - for most cases, the string must be
+ * hexadecimal as per the ACPI specification. The only exception (as
+ * of ACPI 3.0) is that the to_integer() operator allows both decimal
+ * and hexadecimal strings (hex prefixed with "0x").
+ */
+ status = acpi_ut_strtoul64((char *)pointer, flags, &result);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ /* Check for zero-length buffer */
+
+ if (!count) {
+ return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
+ }
+
+ /* Transfer no more than an integer's worth of data */
+
+ if (count > acpi_gbl_integer_byte_width) {
+ count = acpi_gbl_integer_byte_width;
+ }
+
+ /*
+ * Convert buffer to an integer - we simply grab enough raw data
+ * from the buffer to fill an integer
+ */
+ for (i = 0; i < count; i++) {
+ /*
+ * Get next byte and shift it into the Result.
+ * Little endian is used, meaning that the first byte of the buffer
+ * is the LSB of the integer
+ */
+ result |= (((acpi_integer) pointer[i]) << (i * 8));
+ }
+ break;
+
+ default:
+
+ /* No other types can get here */
+ break;
+ }
+
+ /* Create a new integer */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(result)));
+
+ /* Save the Result */
+
+ return_desc->integer.value = result;
+ acpi_ex_truncate_for32bit_table(return_desc);
+ *result_desc = return_desc;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_convert_to_buffer
+ *
+ * PARAMETERS: obj_desc - Object to be converted. Must be an
+ * Integer, Buffer, or String
+ * result_desc - Where the new buffer object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an ACPI Object to a Buffer
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
+ union acpi_operand_object **result_desc)
+{
+ union acpi_operand_object *return_desc;
+ u8 *new_buf;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc);
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_BUFFER:
+
+ /* No conversion necessary */
+
+ *result_desc = obj_desc;
+ return_ACPI_STATUS(AE_OK);
+
+ case ACPI_TYPE_INTEGER:
+
+ /*
+ * Create a new Buffer object.
+ * Need enough space for one integer
+ */
+ return_desc =
+ acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Copy the integer to the buffer, LSB first */
+
+ new_buf = return_desc->buffer.pointer;
+ ACPI_MEMCPY(new_buf,
+ &obj_desc->integer.value,
+ acpi_gbl_integer_byte_width);
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ /*
+ * Create a new Buffer object
+ * Size will be the string length
+ *
+ * NOTE: Add one to the string length to include the null terminator.
+ * The ACPI spec is unclear on this subject, but there is existing
+ * ASL/AML code that depends on the null being transferred to the new
+ * buffer.
+ */
+ return_desc = acpi_ut_create_buffer_object((acpi_size)
+ obj_desc->string.
+ length + 1);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Copy the string to the buffer */
+
+ new_buf = return_desc->buffer.pointer;
+ ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer,
+ obj_desc->string.length);
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ /* Mark buffer initialized */
+
+ return_desc->common.flags |= AOPOBJ_DATA_VALID;
+ *result_desc = return_desc;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_convert_to_ascii
+ *
+ * PARAMETERS: Integer - Value to be converted
+ * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX
+ * String - Where the string is returned
+ * data_width - Size of data item to be converted, in bytes
+ *
+ * RETURN: Actual string length
+ *
+ * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string
+ *
+ ******************************************************************************/
+
+static u32
+acpi_ex_convert_to_ascii(acpi_integer integer,
+ u16 base, u8 * string, u8 data_width)
+{
+ acpi_integer digit;
+ u32 i;
+ u32 j;
+ u32 k = 0;
+ u32 hex_length;
+ u32 decimal_length;
+ u32 remainder;
+ u8 supress_zeros;
+
+ ACPI_FUNCTION_ENTRY();
+
+ switch (base) {
+ case 10:
+
+ /* Setup max length for the decimal number */
+
+ switch (data_width) {
+ case 1:
+ decimal_length = ACPI_MAX8_DECIMAL_DIGITS;
+ break;
+
+ case 4:
+ decimal_length = ACPI_MAX32_DECIMAL_DIGITS;
+ break;
+
+ case 8:
+ default:
+ decimal_length = ACPI_MAX64_DECIMAL_DIGITS;
+ break;
+ }
+
+ supress_zeros = TRUE; /* No leading zeros */
+ remainder = 0;
+
+ for (i = decimal_length; i > 0; i--) {
+
+ /* Divide by nth factor of 10 */
+
+ digit = integer;
+ for (j = 0; j < i; j++) {
+ (void)acpi_ut_short_divide(digit, 10, &digit,
+ &remainder);
+ }
+
+ /* Handle leading zeros */
+
+ if (remainder != 0) {
+ supress_zeros = FALSE;
+ }
+
+ if (!supress_zeros) {
+ string[k] = (u8) (ACPI_ASCII_ZERO + remainder);
+ k++;
+ }
+ }
+ break;
+
+ case 16:
+
+ /* hex_length: 2 ascii hex chars per data byte */
+
+ hex_length = ACPI_MUL_2(data_width);
+ for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
+
+ /* Get one hex digit, most significant digits first */
+
+ string[k] =
+ (u8) acpi_ut_hex_to_ascii_char(integer,
+ ACPI_MUL_4(j));
+ k++;
+ }
+ break;
+
+ default:
+ return (0);
+ }
+
+ /*
+ * Since leading zeros are suppressed, we must check for the case where
+ * the integer equals 0
+ *
+ * Finally, null terminate the string and return the length
+ */
+ if (!k) {
+ string[0] = ACPI_ASCII_ZERO;
+ k = 1;
+ }
+
+ string[k] = 0;
+ return ((u32) k);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_convert_to_string
+ *
+ * PARAMETERS: obj_desc - Object to be converted. Must be an
+ * Integer, Buffer, or String
+ * result_desc - Where the string object is returned
+ * Type - String flags (base and conversion type)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an ACPI Object to a string
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
+ union acpi_operand_object ** result_desc, u32 type)
+{
+ union acpi_operand_object *return_desc;
+ u8 *new_buf;
+ u32 i;
+ u32 string_length = 0;
+ u16 base = 16;
+ u8 separator = ',';
+
+ ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc);
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_STRING:
+
+ /* No conversion necessary */
+
+ *result_desc = obj_desc;
+ return_ACPI_STATUS(AE_OK);
+
+ case ACPI_TYPE_INTEGER:
+
+ switch (type) {
+ case ACPI_EXPLICIT_CONVERT_DECIMAL:
+
+ /* Make room for maximum decimal number */
+
+ string_length = ACPI_MAX_DECIMAL_DIGITS;
+ base = 10;
+ break;
+
+ default:
+
+ /* Two hex string characters for each integer byte */
+
+ string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width);
+ break;
+ }
+
+ /*
+ * Create a new String
+ * Need enough space for one ASCII integer (plus null terminator)
+ */
+ return_desc =
+ acpi_ut_create_string_object((acpi_size) string_length);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ new_buf = return_desc->buffer.pointer;
+
+ /* Convert integer to string */
+
+ string_length =
+ acpi_ex_convert_to_ascii(obj_desc->integer.value, base,
+ new_buf,
+ acpi_gbl_integer_byte_width);
+
+ /* Null terminate at the correct place */
+
+ return_desc->string.length = string_length;
+ new_buf[string_length] = 0;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ /* Setup string length, base, and separator */
+
+ switch (type) {
+ case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */
+ /*
+ * From ACPI: "If Data is a buffer, it is converted to a string of
+ * decimal values separated by commas."
+ */
+ base = 10;
+
+ /*
+ * Calculate the final string length. Individual string values
+ * are variable length (include separator for each)
+ */
+ for (i = 0; i < obj_desc->buffer.length; i++) {
+ if (obj_desc->buffer.pointer[i] >= 100) {
+ string_length += 4;
+ } else if (obj_desc->buffer.pointer[i] >= 10) {
+ string_length += 3;
+ } else {
+ string_length += 2;
+ }
+ }
+ break;
+
+ case ACPI_IMPLICIT_CONVERT_HEX:
+ /*
+ * From the ACPI spec:
+ *"The entire contents of the buffer are converted to a string of
+ * two-character hexadecimal numbers, each separated by a space."
+ */
+ separator = ' ';
+ string_length = (obj_desc->buffer.length * 3);
+ break;
+
+ case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */
+ /*
+ * From ACPI: "If Data is a buffer, it is converted to a string of
+ * hexadecimal values separated by commas."
+ */
+ string_length = (obj_desc->buffer.length * 3);
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Create a new string object and string buffer
+ * (-1 because of extra separator included in string_length from above)
+ * Allow creation of zero-length strings from zero-length buffers.
+ */
+ if (string_length) {
+ string_length--;
+ }
+
+ return_desc = acpi_ut_create_string_object((acpi_size)
+ string_length);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ new_buf = return_desc->buffer.pointer;
+
+ /*
+ * Convert buffer bytes to hex or decimal values
+ * (separated by commas or spaces)
+ */
+ for (i = 0; i < obj_desc->buffer.length; i++) {
+ new_buf += acpi_ex_convert_to_ascii((acpi_integer)
+ obj_desc->buffer.
+ pointer[i], base,
+ new_buf, 1);
+ *new_buf++ = separator; /* each separated by a comma or space */
+ }
+
+ /*
+ * Null terminate the string
+ * (overwrites final comma/space from above)
+ */
+ if (obj_desc->buffer.length) {
+ new_buf--;
+ }
+ *new_buf = 0;
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ *result_desc = return_desc;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_convert_to_target_type
+ *
+ * PARAMETERS: destination_type - Current type of the destination
+ * source_desc - Source object to be converted.
+ * result_desc - Where the converted object is returned
+ * walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Implements "implicit conversion" rules for storing an object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_convert_to_target_type(acpi_object_type destination_type,
+ union acpi_operand_object *source_desc,
+ union acpi_operand_object **result_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_convert_to_target_type);
+
+ /* Default behavior */
+
+ *result_desc = source_desc;
+
+ /*
+ * If required by the target,
+ * perform implicit conversion on the source before we store it.
+ */
+ switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) {
+ case ARGI_SIMPLE_TARGET:
+ case ARGI_FIXED_TARGET:
+ case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */
+
+ switch (destination_type) {
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ /*
+ * Named field can always handle conversions
+ */
+ break;
+
+ default:
+ /* No conversion allowed for these types */
+
+ if (destination_type !=
+ ACPI_GET_OBJECT_TYPE(source_desc)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Explicit operator, will store (%s) over existing type (%s)\n",
+ acpi_ut_get_object_type_name
+ (source_desc),
+ acpi_ut_get_type_name
+ (destination_type)));
+ status = AE_TYPE;
+ }
+ }
+ break;
+
+ case ARGI_TARGETREF:
+
+ switch (destination_type) {
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+ /*
+ * These types require an Integer operand. We can convert
+ * a Buffer or a String to an Integer if necessary.
+ */
+ status =
+ acpi_ex_convert_to_integer(source_desc, result_desc,
+ 16);
+ break;
+
+ case ACPI_TYPE_STRING:
+ /*
+ * The operand must be a String. We can convert an
+ * Integer or Buffer if necessary
+ */
+ status =
+ acpi_ex_convert_to_string(source_desc, result_desc,
+ ACPI_IMPLICIT_CONVERT_HEX);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ /*
+ * The operand must be a Buffer. We can convert an
+ * Integer or String if necessary
+ */
+ status =
+ acpi_ex_convert_to_buffer(source_desc, result_desc);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Bad destination type during conversion: %X",
+ destination_type));
+ status = AE_AML_INTERNAL;
+ break;
+ }
+ break;
+
+ case ARGI_REFERENCE:
+ /*
+ * create_xxxx_field cases - we are storing the field object into the name
+ */
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Unknown Target type ID 0x%X AmlOpcode %X DestType %s",
+ GET_CURRENT_ARG_TYPE(walk_state->op_info->
+ runtime_args),
+ walk_state->opcode,
+ acpi_ut_get_type_name(destination_type)));
+ status = AE_AML_INTERNAL;
+ }
+
+ /*
+ * Source-to-Target conversion semantics:
+ *
+ * If conversion to the target type cannot be performed, then simply
+ * overwrite the target with the new object and type.
+ */
+ if (status == AE_TYPE) {
+ status = AE_OK;
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: excreate - Named object creation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("excreate")
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_alias
+ *
+ * PARAMETERS: walk_state - Current state, contains operands
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new named alias
+ *
+ ******************************************************************************/
+acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state)
+{
+ struct acpi_namespace_node *target_node;
+ struct acpi_namespace_node *alias_node;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_create_alias);
+
+ /* Get the source/alias operands (both namespace nodes) */
+
+ alias_node = (struct acpi_namespace_node *)walk_state->operands[0];
+ target_node = (struct acpi_namespace_node *)walk_state->operands[1];
+
+ if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) ||
+ (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
+ /*
+ * Dereference an existing alias so that we don't create a chain
+ * of aliases. With this code, we guarantee that an alias is
+ * always exactly one level of indirection away from the
+ * actual aliased name.
+ */
+ target_node =
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ target_node->object);
+ }
+
+ /*
+ * For objects that can never change (i.e., the NS node will
+ * permanently point to the same object), we can simply attach
+ * the object to the new NS node. For other objects (such as
+ * Integers, buffers, etc.), we have to point the Alias node
+ * to the original Node.
+ */
+ switch (target_node->type) {
+
+ /* For these types, the sub-object can change dynamically via a Store */
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_PACKAGE:
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ /*
+ * These types open a new scope, so we need the NS node in order to access
+ * any children.
+ */
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+ case ACPI_TYPE_LOCAL_SCOPE:
+
+ /*
+ * The new alias has the type ALIAS and points to the original
+ * NS node, not the object itself.
+ */
+ alias_node->type = ACPI_TYPE_LOCAL_ALIAS;
+ alias_node->object =
+ ACPI_CAST_PTR(union acpi_operand_object, target_node);
+ break;
+
+ case ACPI_TYPE_METHOD:
+
+ /*
+ * Control method aliases need to be differentiated
+ */
+ alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
+ alias_node->object =
+ ACPI_CAST_PTR(union acpi_operand_object, target_node);
+ break;
+
+ default:
+
+ /* Attach the original source object to the new Alias Node */
+
+ /*
+ * The new alias assumes the type of the target, and it points
+ * to the same object. The reference count of the object has an
+ * additional reference to prevent deletion out from under either the
+ * target node or the alias Node
+ */
+ status = acpi_ns_attach_object(alias_node,
+ acpi_ns_get_attached_object
+ (target_node),
+ target_node->type);
+ break;
+ }
+
+ /* Since both operands are Nodes, we don't need to delete them */
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_event
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new event object
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE(ex_create_event);
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Create the actual OS semaphore, with zero initial units -- meaning
+ * that the event is created in an unsignalled state
+ */
+ status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0,
+ &obj_desc->event.os_semaphore);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Attach object to the Node */
+
+ status =
+ acpi_ns_attach_object((struct acpi_namespace_node *)walk_state->
+ operands[0], obj_desc, ACPI_TYPE_EVENT);
+
+ cleanup:
+ /*
+ * Remove local reference to the object (on error, will cause deletion
+ * of both object and semaphore if present.)
+ */
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_mutex
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new mutex object
+ *
+ * Mutex (Name[0], sync_level[1])
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS);
+
+ /* Create the new mutex object */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Create the actual OS Mutex */
+
+ status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Init object and attach to NS node */
+
+ obj_desc->mutex.sync_level =
+ (u8) walk_state->operands[1]->integer.value;
+ obj_desc->mutex.node =
+ (struct acpi_namespace_node *)walk_state->operands[0];
+
+ status =
+ acpi_ns_attach_object(obj_desc->mutex.node, obj_desc,
+ ACPI_TYPE_MUTEX);
+
+ cleanup:
+ /*
+ * Remove local reference to the object (on error, will cause deletion
+ * of both object and semaphore if present.)
+ */
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_region
+ *
+ * PARAMETERS: aml_start - Pointer to the region declaration AML
+ * aml_length - Max length of the declaration AML
+ * region_space - space_iD for the region
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new operation region object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_create_region(u8 * aml_start,
+ u32 aml_length,
+ u8 region_space, struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+ struct acpi_namespace_node *node;
+ union acpi_operand_object *region_obj2;
+
+ ACPI_FUNCTION_TRACE(ex_create_region);
+
+ /* Get the Namespace Node */
+
+ node = walk_state->op->common.node;
+
+ /*
+ * If the region object is already attached to this node,
+ * just return
+ */
+ if (acpi_ns_get_attached_object(node)) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Space ID must be one of the predefined IDs, or in the user-defined
+ * range
+ */
+ if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) &&
+ (region_space < ACPI_USER_REGION_BEGIN)) {
+ ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X",
+ region_space));
+ return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
+ acpi_ut_get_region_name(region_space), region_space));
+
+ /* Create the region descriptor */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Remember location in AML stream of address & length
+ * operands since they need to be evaluated at run time.
+ */
+ region_obj2 = obj_desc->common.next_object;
+ region_obj2->extra.aml_start = aml_start;
+ region_obj2->extra.aml_length = aml_length;
+
+ /* Init the region from the operands */
+
+ obj_desc->region.space_id = region_space;
+ obj_desc->region.address = 0;
+ obj_desc->region.length = 0;
+ obj_desc->region.node = node;
+
+ /* Install the new region object in the parent Node */
+
+ status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION);
+
+ cleanup:
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_processor
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new processor object and populate the fields
+ *
+ * Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3])
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state);
+
+ /* Create the processor object */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize the processor object from the operands */
+
+ obj_desc->processor.proc_id = (u8) operand[1]->integer.value;
+ obj_desc->processor.length = (u8) operand[3]->integer.value;
+ obj_desc->processor.address =
+ (acpi_io_address) operand[2]->integer.value;
+
+ /* Install the processor object in the parent Node */
+
+ status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
+ obj_desc, ACPI_TYPE_PROCESSOR);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_power_resource
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new power_resource object and populate the fields
+ *
+ * power_resource (Name[0], system_level[1], resource_order[2])
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ acpi_status status;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state);
+
+ /* Create the power resource object */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize the power object from the operands */
+
+ obj_desc->power_resource.system_level = (u8) operand[1]->integer.value;
+ obj_desc->power_resource.resource_order =
+ (u16) operand[2]->integer.value;
+
+ /* Install the power resource object in the parent Node */
+
+ status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
+ obj_desc, ACPI_TYPE_POWER);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_create_method
+ *
+ * PARAMETERS: aml_start - First byte of the method's AML
+ * aml_length - AML byte count for this method
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new method object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_create_method(u8 * aml_start,
+ u32 aml_length, struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ u8 method_flags;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state);
+
+ /* Create a new method object */
+
+ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto exit;
+ }
+
+ /* Save the method's AML pointer and length */
+
+ obj_desc->method.aml_start = aml_start;
+ obj_desc->method.aml_length = aml_length;
+
+ /*
+ * Disassemble the method flags. Split off the Arg Count
+ * for efficiency
+ */
+ method_flags = (u8) operand[1]->integer.value;
+
+ obj_desc->method.method_flags =
+ (u8) (method_flags & ~AML_METHOD_ARG_COUNT);
+ obj_desc->method.param_count =
+ (u8) (method_flags & AML_METHOD_ARG_COUNT);
+
+ /*
+ * Get the sync_level. If method is serialized, a mutex will be
+ * created for this method when it is parsed.
+ */
+ if (method_flags & AML_METHOD_SERIALIZED) {
+ /*
+ * ACPI 1.0: sync_level = 0
+ * ACPI 2.0: sync_level = sync_level in method declaration
+ */
+ obj_desc->method.sync_level = (u8)
+ ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4);
+ }
+
+ /* Attach the new object to the method Node */
+
+ status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
+ obj_desc, ACPI_TYPE_METHOD);
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+
+ exit:
+ /* Remove a reference to the operand */
+
+ acpi_ut_remove_reference(operand[1]);
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: exdump - Interpreter debug output routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exdump")
+
+/*
+ * The following routines are used for debug output only
+ */
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+/* Local prototypes */
+static void acpi_ex_out_string(char *title, char *value);
+
+static void acpi_ex_out_pointer(char *title, void *value);
+
+static void
+acpi_ex_dump_object(union acpi_operand_object *obj_desc,
+ struct acpi_exdump_info *info);
+
+static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc);
+
+static void
+acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
+ u32 level, u32 index);
+
+/*******************************************************************************
+ *
+ * Object Descriptor info tables
+ *
+ * Note: The first table entry must be an INIT opcode and must contain
+ * the table length (number of table entries)
+ *
+ ******************************************************************************/
+
+static struct acpi_exdump_info acpi_ex_dump_integer[2] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_integer), NULL},
+ {ACPI_EXD_UINT64, ACPI_EXD_OFFSET(integer.value), "Value"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_string[4] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_string), NULL},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(string.length), "Length"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(string.pointer), "Pointer"},
+ {ACPI_EXD_STRING, 0, NULL}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_buffer[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer), NULL},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(buffer.length), "Length"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.pointer), "Pointer"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.node), "Parent Node"},
+ {ACPI_EXD_BUFFER, 0, NULL}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_package[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_package), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(package.flags), "Flags"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Elements"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(package.elements), "Element List"},
+ {ACPI_EXD_PACKAGE, 0, NULL}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_device[4] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_device), NULL},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.handler), "Handler"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.system_notify),
+ "System Notify"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.device_notify),
+ "Device Notify"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_event[2] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_event), NULL},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.os_semaphore), "OsSemaphore"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_method[8] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_mutex[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"},
+ {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth),
+ "Acquire Depth"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_region[7] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.space_id), "Space Id"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.flags), "Flags"},
+ {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(region.address), "Address"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(region.length), "Length"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.handler), "Handler"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.next), "Next"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_power[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_power), NULL},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.system_level),
+ "System Level"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.resource_order),
+ "Resource Order"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.system_notify),
+ "System Notify"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.device_notify),
+ "Device Notify"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_processor[7] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_processor), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.proc_id), "Processor ID"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.length), "Length"},
+ {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(processor.address), "Address"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.system_notify),
+ "System Notify"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.device_notify),
+ "Device Notify"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.handler), "Handler"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_thermal[4] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_thermal), NULL},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.system_notify),
+ "System Notify"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.device_notify),
+ "Device Notify"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.handler), "Handler"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_buffer_field[3] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer_field), NULL},
+ {ACPI_EXD_FIELD, 0, NULL},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer_field.buffer_obj),
+ "Buffer Object"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_region_field[3] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region_field), NULL},
+ {ACPI_EXD_FIELD, 0, NULL},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(field.region_obj), "Region Object"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_bank_field[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL},
+ {ACPI_EXD_FIELD, 0, NULL},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(bank_field.value), "Value"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.region_obj),
+ "Region Object"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.bank_obj), "Bank Object"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_index_field[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL},
+ {ACPI_EXD_FIELD, 0, NULL},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(index_field.value), "Value"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.index_obj),
+ "Index Object"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.data_obj), "Data Object"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_reference[8] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_reference), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.class), "Class"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.value), "Value"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.node), "Node"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"},
+ {ACPI_EXD_REFERENCE, 0, NULL}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_address_handler[6] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_address_handler),
+ NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(address_space.space_id), "Space Id"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.next), "Next"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.region_list),
+ "Region List"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.node), "Node"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.context), "Context"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_notify[3] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_notify), NULL},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.node), "Node"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.context), "Context"}
+};
+
+/* Miscellaneous tables */
+
+static struct acpi_exdump_info acpi_ex_dump_common[4] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_common), NULL},
+ {ACPI_EXD_TYPE, 0, NULL},
+ {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(common.reference_count),
+ "Reference Count"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common.flags), "Flags"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_field_common[7] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_field_common), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.field_flags),
+ "Field Flags"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.access_byte_width),
+ "Access Byte Width"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.bit_length),
+ "Bit Length"},
+ {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.start_field_bit_offset),
+ "Field Bit Offset"},
+ {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.base_byte_offset),
+ "Base Byte Offset"},
+ {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"}
+};
+
+static struct acpi_exdump_info acpi_ex_dump_node[5] = {
+ {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL},
+ {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"},
+ {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"},
+ {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"},
+ {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"}
+};
+
+/* Dispatch table, indexed by object type */
+
+static struct acpi_exdump_info *acpi_ex_dump_info[] = {
+ NULL,
+ acpi_ex_dump_integer,
+ acpi_ex_dump_string,
+ acpi_ex_dump_buffer,
+ acpi_ex_dump_package,
+ NULL,
+ acpi_ex_dump_device,
+ acpi_ex_dump_event,
+ acpi_ex_dump_method,
+ acpi_ex_dump_mutex,
+ acpi_ex_dump_region,
+ acpi_ex_dump_power,
+ acpi_ex_dump_processor,
+ acpi_ex_dump_thermal,
+ acpi_ex_dump_buffer_field,
+ NULL,
+ NULL,
+ acpi_ex_dump_region_field,
+ acpi_ex_dump_bank_field,
+ acpi_ex_dump_index_field,
+ acpi_ex_dump_reference,
+ NULL,
+ NULL,
+ acpi_ex_dump_notify,
+ acpi_ex_dump_address_handler,
+ NULL,
+ NULL,
+ NULL
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_object
+ *
+ * PARAMETERS: obj_desc - Descriptor to dump
+ * Info - Info table corresponding to this object
+ * type
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Walk the info table for this object
+ *
+ ******************************************************************************/
+
+static void
+acpi_ex_dump_object(union acpi_operand_object *obj_desc,
+ struct acpi_exdump_info *info)
+{
+ u8 *target;
+ char *name;
+ u8 count;
+
+ if (!info) {
+ acpi_os_printf
+ ("ExDumpObject: Display not implemented for object type %s\n",
+ acpi_ut_get_object_type_name(obj_desc));
+ return;
+ }
+
+ /* First table entry must contain the table length (# of table entries) */
+
+ count = info->offset;
+
+ while (count) {
+ target = ACPI_ADD_PTR(u8, obj_desc, info->offset);
+ name = info->name;
+
+ switch (info->opcode) {
+ case ACPI_EXD_INIT:
+ break;
+
+ case ACPI_EXD_TYPE:
+ acpi_ex_out_string("Type",
+ acpi_ut_get_object_type_name
+ (obj_desc));
+ break;
+
+ case ACPI_EXD_UINT8:
+
+ acpi_os_printf("%20s : %2.2X\n", name, *target);
+ break;
+
+ case ACPI_EXD_UINT16:
+
+ acpi_os_printf("%20s : %4.4X\n", name,
+ ACPI_GET16(target));
+ break;
+
+ case ACPI_EXD_UINT32:
+
+ acpi_os_printf("%20s : %8.8X\n", name,
+ ACPI_GET32(target));
+ break;
+
+ case ACPI_EXD_UINT64:
+
+ acpi_os_printf("%20s : %8.8X%8.8X\n", "Value",
+ ACPI_FORMAT_UINT64(ACPI_GET64(target)));
+ break;
+
+ case ACPI_EXD_POINTER:
+ case ACPI_EXD_ADDRESS:
+
+ acpi_ex_out_pointer(name,
+ *ACPI_CAST_PTR(void *, target));
+ break;
+
+ case ACPI_EXD_STRING:
+
+ acpi_ut_print_string(obj_desc->string.pointer,
+ ACPI_UINT8_MAX);
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_EXD_BUFFER:
+
+ ACPI_DUMP_BUFFER(obj_desc->buffer.pointer,
+ obj_desc->buffer.length);
+ break;
+
+ case ACPI_EXD_PACKAGE:
+
+ /* Dump the package contents */
+
+ acpi_os_printf("\nPackage Contents:\n");
+ acpi_ex_dump_package_obj(obj_desc, 0, 0);
+ break;
+
+ case ACPI_EXD_FIELD:
+
+ acpi_ex_dump_object(obj_desc,
+ acpi_ex_dump_field_common);
+ break;
+
+ case ACPI_EXD_REFERENCE:
+
+ acpi_ex_out_string("Class Name",
+ (char *)
+ acpi_ut_get_reference_name
+ (obj_desc));
+ acpi_ex_dump_reference_obj(obj_desc);
+ break;
+
+ default:
+ acpi_os_printf("**** Invalid table opcode [%X] ****\n",
+ info->opcode);
+ return;
+ }
+
+ info++;
+ count--;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_operand
+ *
+ * PARAMETERS: *obj_desc - Pointer to entry to be dumped
+ * Depth - Current nesting depth
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump an operand object
+ *
+ ******************************************************************************/
+
+void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
+{
+ u32 length;
+ u32 index;
+
+ ACPI_FUNCTION_NAME(ex_dump_operand)
+
+ if (!((ACPI_LV_EXEC & acpi_dbg_level)
+ && (_COMPONENT & acpi_dbg_layer))) {
+ return;
+ }
+
+ if (!obj_desc) {
+
+ /* This could be a null element of a package */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n"));
+ return;
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p Namespace Node: ",
+ obj_desc));
+ ACPI_DUMP_ENTRY(obj_desc, ACPI_LV_EXEC);
+ return;
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "%p is not a node or operand object: [%s]\n",
+ obj_desc,
+ acpi_ut_get_descriptor_name(obj_desc)));
+ ACPI_DUMP_BUFFER(obj_desc, sizeof(union acpi_operand_object));
+ return;
+ }
+
+ /* obj_desc is a valid object */
+
+ if (depth > 0) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%*s[%u] %p ",
+ depth, " ", depth, obj_desc));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p ", obj_desc));
+ }
+
+ /* Decode object type */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ acpi_os_printf("Reference: [%s] ",
+ acpi_ut_get_reference_name(obj_desc));
+
+ switch (obj_desc->reference.class) {
+ case ACPI_REFCLASS_DEBUG:
+
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_REFCLASS_INDEX:
+
+ acpi_os_printf("%p\n", obj_desc->reference.object);
+ break;
+
+ case ACPI_REFCLASS_TABLE:
+
+ acpi_os_printf("Table Index %X\n",
+ obj_desc->reference.value);
+ break;
+
+ case ACPI_REFCLASS_REFOF:
+
+ acpi_os_printf("%p [%s]\n", obj_desc->reference.object,
+ acpi_ut_get_type_name(((union
+ acpi_operand_object
+ *)
+ obj_desc->
+ reference.
+ object)->common.
+ type));
+ break;
+
+ case ACPI_REFCLASS_ARG:
+
+ acpi_os_printf("%X", obj_desc->reference.value);
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
+ /* Value is an Integer */
+
+ acpi_os_printf(" value is [%8.8X%8.8x]",
+ ACPI_FORMAT_UINT64(obj_desc->
+ integer.
+ value));
+ }
+
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_REFCLASS_LOCAL:
+
+ acpi_os_printf("%X", obj_desc->reference.value);
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
+ /* Value is an Integer */
+
+ acpi_os_printf(" value is [%8.8X%8.8x]",
+ ACPI_FORMAT_UINT64(obj_desc->
+ integer.
+ value));
+ }
+
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_REFCLASS_NAME:
+
+ acpi_os_printf("- [%4.4s]\n",
+ obj_desc->reference.node->name.ascii);
+ break;
+
+ default: /* Unknown reference class */
+
+ acpi_os_printf("%2.2X\n", obj_desc->reference.class);
+ break;
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ acpi_os_printf("Buffer length %.2X @ %p\n",
+ obj_desc->buffer.length,
+ obj_desc->buffer.pointer);
+
+ /* Debug only -- dump the buffer contents */
+
+ if (obj_desc->buffer.pointer) {
+ length = obj_desc->buffer.length;
+ if (length > 128) {
+ length = 128;
+ }
+
+ acpi_os_printf
+ ("Buffer Contents: (displaying length 0x%.2X)\n",
+ length);
+ ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, length);
+ }
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf("Integer %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(obj_desc->integer.value));
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ acpi_os_printf("Package [Len %X] ElementArray %p\n",
+ obj_desc->package.count,
+ obj_desc->package.elements);
+
+ /*
+ * If elements exist, package element pointer is valid,
+ * and debug_level exceeds 1, dump package's elements.
+ */
+ if (obj_desc->package.count &&
+ obj_desc->package.elements && acpi_dbg_level > 1) {
+ for (index = 0; index < obj_desc->package.count;
+ index++) {
+ acpi_ex_dump_operand(obj_desc->package.
+ elements[index],
+ depth + 1);
+ }
+ }
+ break;
+
+ case ACPI_TYPE_REGION:
+
+ acpi_os_printf("Region %s (%X)",
+ acpi_ut_get_region_name(obj_desc->region.
+ space_id),
+ obj_desc->region.space_id);
+
+ /*
+ * If the address and length have not been evaluated,
+ * don't print them.
+ */
+ if (!(obj_desc->region.flags & AOPOBJ_DATA_VALID)) {
+ acpi_os_printf("\n");
+ } else {
+ acpi_os_printf(" base %8.8X%8.8X Length %X\n",
+ ACPI_FORMAT_NATIVE_UINT(obj_desc->region.
+ address),
+ obj_desc->region.length);
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf("String length %X @ %p ",
+ obj_desc->string.length,
+ obj_desc->string.pointer);
+
+ acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX);
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ acpi_os_printf("BankField\n");
+ break;
+
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+
+ acpi_os_printf
+ ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n",
+ obj_desc->field.bit_length,
+ obj_desc->field.access_byte_width,
+ obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK,
+ obj_desc->field.field_flags & AML_FIELD_UPDATE_RULE_MASK,
+ obj_desc->field.base_byte_offset,
+ obj_desc->field.start_field_bit_offset);
+
+ acpi_ex_dump_operand(obj_desc->field.region_obj, depth + 1);
+ break;
+
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ acpi_os_printf("IndexField\n");
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n",
+ obj_desc->buffer_field.bit_length,
+ obj_desc->buffer_field.base_byte_offset,
+ obj_desc->buffer_field.start_field_bit_offset);
+
+ if (!obj_desc->buffer_field.buffer_obj) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "*NULL*\n"));
+ } else
+ if (ACPI_GET_OBJECT_TYPE(obj_desc->buffer_field.buffer_obj)
+ != ACPI_TYPE_BUFFER) {
+ acpi_os_printf("*not a Buffer*\n");
+ } else {
+ acpi_ex_dump_operand(obj_desc->buffer_field.buffer_obj,
+ depth + 1);
+ }
+ break;
+
+ case ACPI_TYPE_EVENT:
+
+ acpi_os_printf("Event\n");
+ break;
+
+ case ACPI_TYPE_METHOD:
+
+ acpi_os_printf("Method(%X) @ %p:%X\n",
+ obj_desc->method.param_count,
+ obj_desc->method.aml_start,
+ obj_desc->method.aml_length);
+ break;
+
+ case ACPI_TYPE_MUTEX:
+
+ acpi_os_printf("Mutex\n");
+ break;
+
+ case ACPI_TYPE_DEVICE:
+
+ acpi_os_printf("Device\n");
+ break;
+
+ case ACPI_TYPE_POWER:
+
+ acpi_os_printf("Power\n");
+ break;
+
+ case ACPI_TYPE_PROCESSOR:
+
+ acpi_os_printf("Processor\n");
+ break;
+
+ case ACPI_TYPE_THERMAL:
+
+ acpi_os_printf("Thermal\n");
+ break;
+
+ default:
+ /* Unknown Type */
+
+ acpi_os_printf("Unknown Type %X\n",
+ ACPI_GET_OBJECT_TYPE(obj_desc));
+ break;
+ }
+
+ return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_operands
+ *
+ * PARAMETERS: Operands - A list of Operand objects
+ * opcode_name - AML opcode name
+ * num_operands - Operand count for this opcode
+ *
+ * DESCRIPTION: Dump the operands associated with the opcode
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_dump_operands(union acpi_operand_object **operands,
+ const char *opcode_name, u32 num_operands)
+{
+ ACPI_FUNCTION_NAME(ex_dump_operands);
+
+ if (!opcode_name) {
+ opcode_name = "UNKNOWN";
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "**** Start operand dump for opcode [%s], %d operands\n",
+ opcode_name, num_operands));
+
+ if (num_operands == 0) {
+ num_operands = 1;
+ }
+
+ /* Dump the individual operands */
+
+ while (num_operands) {
+ acpi_ex_dump_operand(*operands, 0);
+ operands++;
+ num_operands--;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "**** End operand dump for [%s]\n", opcode_name));
+ return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_out* functions
+ *
+ * PARAMETERS: Title - Descriptive text
+ * Value - Value to be displayed
+ *
+ * DESCRIPTION: Object dump output formatting functions. These functions
+ * reduce the number of format strings required and keeps them
+ * all in one place for easy modification.
+ *
+ ******************************************************************************/
+
+static void acpi_ex_out_string(char *title, char *value)
+{
+ acpi_os_printf("%20s : %s\n", title, value);
+}
+
+static void acpi_ex_out_pointer(char *title, void *value)
+{
+ acpi_os_printf("%20s : %p\n", title, value);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_namespace_node
+ *
+ * PARAMETERS: Node - Descriptor to dump
+ * Flags - Force display if TRUE
+ *
+ * DESCRIPTION: Dumps the members of the given.Node
+ *
+ ******************************************************************************/
+
+void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!flags) {
+ if (!((ACPI_LV_OBJECTS & acpi_dbg_level)
+ && (_COMPONENT & acpi_dbg_layer))) {
+ return;
+ }
+ }
+
+ acpi_os_printf("%20s : %4.4s\n", "Name", acpi_ut_get_node_name(node));
+ acpi_ex_out_string("Type", acpi_ut_get_type_name(node->type));
+ acpi_ex_out_pointer("Attached Object",
+ acpi_ns_get_attached_object(node));
+ acpi_ex_out_pointer("Parent", acpi_ns_get_parent_node(node));
+
+ acpi_ex_dump_object(ACPI_CAST_PTR(union acpi_operand_object, node),
+ acpi_ex_dump_node);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_reference_obj
+ *
+ * PARAMETERS: Object - Descriptor to dump
+ *
+ * DESCRIPTION: Dumps a reference object
+ *
+ ******************************************************************************/
+
+static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc)
+{
+ struct acpi_buffer ret_buf;
+ acpi_status status;
+
+ ret_buf.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+
+ if (obj_desc->reference.class == ACPI_REFCLASS_NAME) {
+ acpi_os_printf(" %p ", obj_desc->reference.node);
+
+ status =
+ acpi_ns_handle_to_pathname(obj_desc->reference.node,
+ &ret_buf);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf(" Could not convert name to pathname\n");
+ } else {
+ acpi_os_printf("%s\n", (char *)ret_buf.pointer);
+ ACPI_FREE(ret_buf.pointer);
+ }
+ } else if (obj_desc->reference.object) {
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
+ ACPI_DESC_TYPE_OPERAND) {
+ acpi_os_printf(" Target: %p",
+ obj_desc->reference.object);
+ if (obj_desc->reference.class == ACPI_REFCLASS_TABLE) {
+ acpi_os_printf(" Table Index: %X\n",
+ obj_desc->reference.value);
+ } else {
+ acpi_os_printf(" Target: %p [%s]\n",
+ obj_desc->reference.object,
+ acpi_ut_get_type_name(((union
+ acpi_operand_object
+ *)
+ obj_desc->
+ reference.
+ object)->
+ common.
+ type));
+ }
+ } else {
+ acpi_os_printf(" Target: %p\n",
+ obj_desc->reference.object);
+ }
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_package_obj
+ *
+ * PARAMETERS: obj_desc - Descriptor to dump
+ * Level - Indentation Level
+ * Index - Package index for this object
+ *
+ * DESCRIPTION: Dumps the elements of the package
+ *
+ ******************************************************************************/
+
+static void
+acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
+ u32 level, u32 index)
+{
+ u32 i;
+
+ /* Indentation and index output */
+
+ if (level > 0) {
+ for (i = 0; i < level; i++) {
+ acpi_os_printf(" ");
+ }
+
+ acpi_os_printf("[%.2d] ", index);
+ }
+
+ acpi_os_printf("%p ", obj_desc);
+
+ /* Null package elements are allowed */
+
+ if (!obj_desc) {
+ acpi_os_printf("[Null Object]\n");
+ return;
+ }
+
+ /* Packages may only contain a few object types */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf("[Integer] = %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(obj_desc->integer.value));
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf("[String] Value: ");
+ for (i = 0; i < obj_desc->string.length; i++) {
+ acpi_os_printf("%c", obj_desc->string.pointer[i]);
+ }
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ acpi_os_printf("[Buffer] Length %.2X = ",
+ obj_desc->buffer.length);
+ if (obj_desc->buffer.length) {
+ acpi_ut_dump_buffer(ACPI_CAST_PTR
+ (u8, obj_desc->buffer.pointer),
+ obj_desc->buffer.length,
+ DB_DWORD_DISPLAY, _COMPONENT);
+ } else {
+ acpi_os_printf("\n");
+ }
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ acpi_os_printf("[Package] Contains %d Elements:\n",
+ obj_desc->package.count);
+
+ for (i = 0; i < obj_desc->package.count; i++) {
+ acpi_ex_dump_package_obj(obj_desc->package.elements[i],
+ level + 1, i);
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ acpi_os_printf("[Object Reference] Type [%s] %2.2X",
+ acpi_ut_get_reference_name(obj_desc),
+ obj_desc->reference.class);
+ acpi_ex_dump_reference_obj(obj_desc);
+ break;
+
+ default:
+
+ acpi_os_printf("[Unknown Type] %X\n",
+ ACPI_GET_OBJECT_TYPE(obj_desc));
+ break;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_dump_object_descriptor
+ *
+ * PARAMETERS: obj_desc - Descriptor to dump
+ * Flags - Force display if TRUE
+ *
+ * DESCRIPTION: Dumps the members of the object descriptor given.
+ *
+ ******************************************************************************/
+
+void
+acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
+{
+ ACPI_FUNCTION_TRACE(ex_dump_object_descriptor);
+
+ if (!obj_desc) {
+ return_VOID;
+ }
+
+ if (!flags) {
+ if (!((ACPI_LV_OBJECTS & acpi_dbg_level)
+ && (_COMPONENT & acpi_dbg_layer))) {
+ return_VOID;
+ }
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) {
+ acpi_ex_dump_namespace_node((struct acpi_namespace_node *)
+ obj_desc, flags);
+
+ acpi_os_printf("\nAttached Object (%p):\n",
+ ((struct acpi_namespace_node *)obj_desc)->
+ object);
+
+ acpi_ex_dump_object_descriptor(((struct acpi_namespace_node *)
+ obj_desc)->object, flags);
+ return_VOID;
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
+ acpi_os_printf
+ ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n",
+ obj_desc, acpi_ut_get_descriptor_name(obj_desc));
+ return_VOID;
+ }
+
+ if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) {
+ return_VOID;
+ }
+
+ /* Common Fields */
+
+ acpi_ex_dump_object(obj_desc, acpi_ex_dump_common);
+
+ /* Object-specific fields */
+
+ acpi_ex_dump_object(obj_desc, acpi_ex_dump_info[obj_desc->common.type]);
+ return_VOID;
+}
+
+#endif
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: exfield - ACPI AML (p-code) execution - field manipulation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exfield")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_read_data_from_field
+ *
+ * PARAMETERS: walk_state - Current execution state
+ * obj_desc - The named field
+ * ret_buffer_desc - Where the return data object is stored
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Read from a named field. Returns either an Integer or a
+ * Buffer, depending on the size of the field.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
+ union acpi_operand_object *obj_desc,
+ union acpi_operand_object **ret_buffer_desc)
+{
+ acpi_status status;
+ union acpi_operand_object *buffer_desc;
+ acpi_size length;
+ void *buffer;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc);
+
+ /* Parameter validation */
+
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+ if (!ret_buffer_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
+ /*
+ * If the buffer_field arguments have not been previously evaluated,
+ * evaluate them now and save the results.
+ */
+ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
+ status = acpi_ds_get_buffer_field_arguments(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ } else
+ if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD)
+ && (obj_desc->field.region_obj->region.space_id ==
+ ACPI_ADR_SPACE_SMBUS)) {
+ /*
+ * This is an SMBus read. We must create a buffer to hold the data
+ * and directly access the region handler.
+ */
+ buffer_desc =
+ acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE);
+ if (!buffer_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Lock entire transaction if requested */
+
+ acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
+
+ /*
+ * Perform the read.
+ * Note: Smbus protocol value is passed in upper 16-bits of Function
+ */
+ status = acpi_ex_access_region(obj_desc, 0,
+ ACPI_CAST_PTR(acpi_integer,
+ buffer_desc->
+ buffer.pointer),
+ ACPI_READ | (obj_desc->field.
+ attribute << 16));
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
+ goto exit;
+ }
+
+ /*
+ * Allocate a buffer for the contents of the field.
+ *
+ * If the field is larger than the size of an acpi_integer, create
+ * a BUFFER to hold it. Otherwise, use an INTEGER. This allows
+ * the use of arithmetic operators on the returned value if the
+ * field size is equal or smaller than an Integer.
+ *
+ * Note: Field.length is in bits.
+ */
+ length =
+ (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
+ if (length > acpi_gbl_integer_byte_width) {
+
+ /* Field is too large for an Integer, create a Buffer instead */
+
+ buffer_desc = acpi_ut_create_buffer_object(length);
+ if (!buffer_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ buffer = buffer_desc->buffer.pointer;
+ } else {
+ /* Field will fit within an Integer (normal case) */
+
+ buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!buffer_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ length = acpi_gbl_integer_byte_width;
+ buffer_desc->integer.value = 0;
+ buffer = &buffer_desc->integer.value;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n",
+ obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer,
+ (u32) length));
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n",
+ obj_desc->common_field.bit_length,
+ obj_desc->common_field.start_field_bit_offset,
+ obj_desc->common_field.base_byte_offset));
+
+ /* Lock entire transaction if requested */
+
+ acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
+
+ /* Read from the field */
+
+ status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length);
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
+
+ exit:
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(buffer_desc);
+ } else {
+ *ret_buffer_desc = buffer_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_write_data_to_field
+ *
+ * PARAMETERS: source_desc - Contains data to write
+ * obj_desc - The named field
+ * result_desc - Where the return value is returned, if any
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Write to a named field
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
+ union acpi_operand_object *obj_desc,
+ union acpi_operand_object **result_desc)
+{
+ acpi_status status;
+ u32 length;
+ void *buffer;
+ union acpi_operand_object *buffer_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc);
+
+ /* Parameter validation */
+
+ if (!source_desc || !obj_desc) {
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
+ /*
+ * If the buffer_field arguments have not been previously evaluated,
+ * evaluate them now and save the results.
+ */
+ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
+ status = acpi_ds_get_buffer_field_arguments(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ } else
+ if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD)
+ && (obj_desc->field.region_obj->region.space_id ==
+ ACPI_ADR_SPACE_SMBUS)) {
+ /*
+ * This is an SMBus write. We will bypass the entire field mechanism
+ * and handoff the buffer directly to the handler.
+ *
+ * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE).
+ */
+ if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) {
+ ACPI_ERROR((AE_INFO,
+ "SMBus write requires Buffer, found type %s",
+ acpi_ut_get_object_type_name(source_desc)));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ if (source_desc->buffer.length < ACPI_SMBUS_BUFFER_SIZE) {
+ ACPI_ERROR((AE_INFO,
+ "SMBus write requires Buffer of length %X, found length %X",
+ ACPI_SMBUS_BUFFER_SIZE,
+ source_desc->buffer.length));
+
+ return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
+ }
+
+ buffer_desc =
+ acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE);
+ if (!buffer_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ buffer = buffer_desc->buffer.pointer;
+ ACPI_MEMCPY(buffer, source_desc->buffer.pointer,
+ ACPI_SMBUS_BUFFER_SIZE);
+
+ /* Lock entire transaction if requested */
+
+ acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
+
+ /*
+ * Perform the write (returns status and perhaps data in the
+ * same buffer)
+ * Note: SMBus protocol type is passed in upper 16-bits of Function.
+ */
+ status = acpi_ex_access_region(obj_desc, 0,
+ (acpi_integer *) buffer,
+ ACPI_WRITE | (obj_desc->field.
+ attribute << 16));
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
+
+ *result_desc = buffer_desc;
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get a pointer to the data to be written */
+
+ switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
+ case ACPI_TYPE_INTEGER:
+ buffer = &source_desc->integer.value;
+ length = sizeof(source_desc->integer.value);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ buffer = source_desc->buffer.pointer;
+ length = source_desc->buffer.length;
+ break;
+
+ case ACPI_TYPE_STRING:
+ buffer = source_desc->string.pointer;
+ length = source_desc->string.length;
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n",
+ source_desc,
+ acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
+ (source_desc)),
+ ACPI_GET_OBJECT_TYPE(source_desc), buffer, length));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n",
+ obj_desc,
+ acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)),
+ ACPI_GET_OBJECT_TYPE(obj_desc),
+ obj_desc->common_field.bit_length,
+ obj_desc->common_field.start_field_bit_offset,
+ obj_desc->common_field.base_byte_offset));
+
+ /* Lock entire transaction if requested */
+
+ acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
+
+ /* Write to the field */
+
+ status = acpi_ex_insert_into_field(obj_desc, buffer, length);
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: exfldio - Aml Field I/O
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acevents.h>
+#include <acpi/acdispat.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exfldio")
+
+/* Local prototypes */
+static acpi_status
+acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset,
+ acpi_integer * value, u32 read_write);
+
+static u8
+acpi_ex_register_overflow(union acpi_operand_object *obj_desc,
+ acpi_integer value);
+
+static acpi_status
+acpi_ex_setup_region(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_setup_region
+ *
+ * PARAMETERS: obj_desc - Field to be read or written
+ * field_datum_byte_offset - Byte offset of this datum within the
+ * parent field
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Common processing for acpi_ex_extract_from_field and
+ * acpi_ex_insert_into_field. Initialize the Region if necessary and
+ * validate the request.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_setup_region(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *rgn_desc;
+
+ ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset);
+
+ rgn_desc = obj_desc->common_field.region_obj;
+
+ /* We must have a valid region */
+
+ if (ACPI_GET_OBJECT_TYPE(rgn_desc) != ACPI_TYPE_REGION) {
+ ACPI_ERROR((AE_INFO, "Needed Region, found type %X (%s)",
+ ACPI_GET_OBJECT_TYPE(rgn_desc),
+ acpi_ut_get_object_type_name(rgn_desc)));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * If the Region Address and Length have not been previously evaluated,
+ * evaluate them now and save the results.
+ */
+ if (!(rgn_desc->common.flags & AOPOBJ_DATA_VALID)) {
+ status = acpi_ds_get_region_arguments(rgn_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Exit if Address/Length have been disallowed by the host OS */
+
+ if (rgn_desc->common.flags & AOPOBJ_INVALID) {
+ return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
+ }
+
+ /*
+ * Exit now for SMBus address space, it has a non-linear address space
+ * and the request cannot be directly validated
+ */
+ if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) {
+
+ /* SMBus has a non-linear address space */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+#ifdef ACPI_UNDER_DEVELOPMENT
+ /*
+ * If the Field access is any_acc, we can now compute the optimal
+ * access (because we know know the length of the parent region)
+ */
+ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+#endif
+
+ /*
+ * Validate the request. The entire request from the byte offset for a
+ * length of one field datum (access width) must fit within the region.
+ * (Region length is specified in bytes)
+ */
+ if (rgn_desc->region.length <
+ (obj_desc->common_field.base_byte_offset +
+ field_datum_byte_offset +
+ obj_desc->common_field.access_byte_width)) {
+ if (acpi_gbl_enable_interpreter_slack) {
+ /*
+ * Slack mode only: We will go ahead and allow access to this
+ * field if it is within the region length rounded up to the next
+ * access width boundary. acpi_size cast for 64-bit compile.
+ */
+ if (ACPI_ROUND_UP(rgn_desc->region.length,
+ obj_desc->common_field.
+ access_byte_width) >=
+ ((acpi_size) obj_desc->common_field.
+ base_byte_offset +
+ obj_desc->common_field.access_byte_width +
+ field_datum_byte_offset)) {
+ return_ACPI_STATUS(AE_OK);
+ }
+ }
+
+ if (rgn_desc->region.length <
+ obj_desc->common_field.access_byte_width) {
+ /*
+ * This is the case where the access_type (acc_word, etc.) is wider
+ * than the region itself. For example, a region of length one
+ * byte, and a field with Dword access specified.
+ */
+ ACPI_ERROR((AE_INFO,
+ "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)",
+ acpi_ut_get_node_name(obj_desc->
+ common_field.node),
+ obj_desc->common_field.access_byte_width,
+ acpi_ut_get_node_name(rgn_desc->region.
+ node),
+ rgn_desc->region.length));
+ }
+
+ /*
+ * Offset rounded up to next multiple of field width
+ * exceeds region length, indicate an error
+ */
+ ACPI_ERROR((AE_INFO,
+ "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)",
+ acpi_ut_get_node_name(obj_desc->common_field.node),
+ obj_desc->common_field.base_byte_offset,
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width,
+ acpi_ut_get_node_name(rgn_desc->region.node),
+ rgn_desc->region.length));
+
+ return_ACPI_STATUS(AE_AML_REGION_LIMIT);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_access_region
+ *
+ * PARAMETERS: obj_desc - Field to be read
+ * field_datum_byte_offset - Byte offset of this datum within the
+ * parent field
+ * Value - Where to store value (must at least
+ * the size of acpi_integer)
+ * Function - Read or Write flag plus other region-
+ * dependent flags
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Read or Write a single field datum to an Operation Region.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_access_region(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset,
+ acpi_integer * value, u32 function)
+{
+ acpi_status status;
+ union acpi_operand_object *rgn_desc;
+ acpi_physical_address address;
+
+ ACPI_FUNCTION_TRACE(ex_access_region);
+
+ /*
+ * Ensure that the region operands are fully evaluated and verify
+ * the validity of the request
+ */
+ status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * The physical address of this field datum is:
+ *
+ * 1) The base of the region, plus
+ * 2) The base offset of the field, plus
+ * 3) The current offset into the field
+ */
+ rgn_desc = obj_desc->common_field.region_obj;
+ address = rgn_desc->region.address +
+ obj_desc->common_field.base_byte_offset + field_datum_byte_offset;
+
+ if ((function & ACPI_IO_MASK) == ACPI_READ) {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]"));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]"));
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD,
+ " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %p\n",
+ acpi_ut_get_region_name(rgn_desc->region.
+ space_id),
+ rgn_desc->region.space_id,
+ obj_desc->common_field.access_byte_width,
+ obj_desc->common_field.base_byte_offset,
+ field_datum_byte_offset, ACPI_CAST_PTR(void,
+ address)));
+
+ /* Invoke the appropriate address_space/op_region handler */
+
+ status = acpi_ev_address_space_dispatch(rgn_desc, function,
+ address,
+ ACPI_MUL_8(obj_desc->
+ common_field.
+ access_byte_width),
+ value);
+
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_NOT_IMPLEMENTED) {
+ ACPI_ERROR((AE_INFO,
+ "Region %s(%X) not implemented",
+ acpi_ut_get_region_name(rgn_desc->region.
+ space_id),
+ rgn_desc->region.space_id));
+ } else if (status == AE_NOT_EXIST) {
+ ACPI_ERROR((AE_INFO,
+ "Region %s(%X) has no handler",
+ acpi_ut_get_region_name(rgn_desc->region.
+ space_id),
+ rgn_desc->region.space_id));
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_register_overflow
+ *
+ * PARAMETERS: obj_desc - Register(Field) to be written
+ * Value - Value to be stored
+ *
+ * RETURN: TRUE if value overflows the field, FALSE otherwise
+ *
+ * DESCRIPTION: Check if a value is out of range of the field being written.
+ * Used to check if the values written to Index and Bank registers
+ * are out of range. Normally, the value is simply truncated
+ * to fit the field, but this case is most likely a serious
+ * coding error in the ASL.
+ *
+ ******************************************************************************/
+
+static u8
+acpi_ex_register_overflow(union acpi_operand_object *obj_desc,
+ acpi_integer value)
+{
+
+ if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) {
+ /*
+ * The field is large enough to hold the maximum integer, so we can
+ * never overflow it.
+ */
+ return (FALSE);
+ }
+
+ if (value >= ((acpi_integer) 1 << obj_desc->common_field.bit_length)) {
+ /*
+ * The Value is larger than the maximum value that can fit into
+ * the register.
+ */
+ return (TRUE);
+ }
+
+ /* The Value will fit into the field with no truncation */
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_field_datum_io
+ *
+ * PARAMETERS: obj_desc - Field to be read
+ * field_datum_byte_offset - Byte offset of this datum within the
+ * parent field
+ * Value - Where to store value (must be 64 bits)
+ * read_write - Read or Write flag
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Read or Write a single datum of a field. The field_type is
+ * demultiplexed here to handle the different types of fields
+ * (buffer_field, region_field, index_field, bank_field)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset,
+ acpi_integer * value, u32 read_write)
+{
+ acpi_status status;
+ acpi_integer local_value;
+
+ ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset);
+
+ if (read_write == ACPI_READ) {
+ if (!value) {
+ local_value = 0;
+
+ /* To support reads without saving return value */
+ value = &local_value;
+ }
+
+ /* Clear the entire return buffer first, [Very Important!] */
+
+ *value = 0;
+ }
+
+ /*
+ * The four types of fields are:
+ *
+ * buffer_field - Read/write from/to a Buffer
+ * region_field - Read/write from/to a Operation Region.
+ * bank_field - Write to a Bank Register, then read/write from/to an
+ * operation_region
+ * index_field - Write to an Index Register, then read/write from/to a
+ * Data Register
+ */
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_BUFFER_FIELD:
+ /*
+ * If the buffer_field arguments have not been previously evaluated,
+ * evaluate them now and save the results.
+ */
+ if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
+ status = acpi_ds_get_buffer_field_arguments(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ if (read_write == ACPI_READ) {
+ /*
+ * Copy the data from the source buffer.
+ * Length is the field width in bytes.
+ */
+ ACPI_MEMCPY(value,
+ (obj_desc->buffer_field.buffer_obj)->buffer.
+ pointer +
+ obj_desc->buffer_field.base_byte_offset +
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width);
+ } else {
+ /*
+ * Copy the data to the target buffer.
+ * Length is the field width in bytes.
+ */
+ ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer.
+ pointer +
+ obj_desc->buffer_field.base_byte_offset +
+ field_datum_byte_offset, value,
+ obj_desc->common_field.access_byte_width);
+ }
+
+ status = AE_OK;
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ /*
+ * Ensure that the bank_value is not beyond the capacity of
+ * the register
+ */
+ if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj,
+ (acpi_integer) obj_desc->
+ bank_field.value)) {
+ return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
+ }
+
+ /*
+ * For bank_fields, we must write the bank_value to the bank_register
+ * (itself a region_field) before we can access the data.
+ */
+ status =
+ acpi_ex_insert_into_field(obj_desc->bank_field.bank_obj,
+ &obj_desc->bank_field.value,
+ sizeof(obj_desc->bank_field.
+ value));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Now that the Bank has been selected, fall through to the
+ * region_field case and write the datum to the Operation Region
+ */
+
+ /*lint -fallthrough */
+
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ /*
+ * For simple region_fields, we just directly access the owning
+ * Operation Region.
+ */
+ status =
+ acpi_ex_access_region(obj_desc, field_datum_byte_offset,
+ value, read_write);
+ break;
+
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ /*
+ * Ensure that the index_value is not beyond the capacity of
+ * the register
+ */
+ if (acpi_ex_register_overflow(obj_desc->index_field.index_obj,
+ (acpi_integer) obj_desc->
+ index_field.value)) {
+ return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
+ }
+
+ /* Write the index value to the index_register (itself a region_field) */
+
+ field_datum_byte_offset += obj_desc->index_field.value;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Write to Index Register: Value %8.8X\n",
+ field_datum_byte_offset));
+
+ status =
+ acpi_ex_insert_into_field(obj_desc->index_field.index_obj,
+ &field_datum_byte_offset,
+ sizeof(field_datum_byte_offset));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (read_write == ACPI_READ) {
+
+ /* Read the datum from the data_register */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Read from Data Register\n"));
+
+ status =
+ acpi_ex_extract_from_field(obj_desc->index_field.
+ data_obj, value,
+ sizeof(acpi_integer));
+ } else {
+ /* Write the datum to the data_register */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Write to Data Register: Value %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(*value)));
+
+ status =
+ acpi_ex_insert_into_field(obj_desc->index_field.
+ data_obj, value,
+ sizeof(acpi_integer));
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %X",
+ ACPI_GET_OBJECT_TYPE(obj_desc)));
+ status = AE_AML_INTERNAL;
+ break;
+ }
+
+ if (ACPI_SUCCESS(status)) {
+ if (read_write == ACPI_READ) {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Value Read %8.8X%8.8X, Width %d\n",
+ ACPI_FORMAT_UINT64(*value),
+ obj_desc->common_field.
+ access_byte_width));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Value Written %8.8X%8.8X, Width %d\n",
+ ACPI_FORMAT_UINT64(*value),
+ obj_desc->common_field.
+ access_byte_width));
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_write_with_update_rule
+ *
+ * PARAMETERS: obj_desc - Field to be written
+ * Mask - bitmask within field datum
+ * field_value - Value to write
+ * field_datum_byte_offset - Offset of datum within field
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Apply the field update rule to a field write
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
+ acpi_integer mask,
+ acpi_integer field_value,
+ u32 field_datum_byte_offset)
+{
+ acpi_status status = AE_OK;
+ acpi_integer merged_value;
+ acpi_integer current_value;
+
+ ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask);
+
+ /* Start with the new bits */
+
+ merged_value = field_value;
+
+ /* If the mask is all ones, we don't need to worry about the update rule */
+
+ if (mask != ACPI_INTEGER_MAX) {
+
+ /* Decode the update rule */
+
+ switch (obj_desc->common_field.
+ field_flags & AML_FIELD_UPDATE_RULE_MASK) {
+ case AML_FIELD_UPDATE_PRESERVE:
+ /*
+ * Check if update rule needs to be applied (not if mask is all
+ * ones) The left shift drops the bits we want to ignore.
+ */
+ if ((~mask << (ACPI_MUL_8(sizeof(mask)) -
+ ACPI_MUL_8(obj_desc->common_field.
+ access_byte_width))) != 0) {
+ /*
+ * Read the current contents of the byte/word/dword containing
+ * the field, and merge with the new field value.
+ */
+ status =
+ acpi_ex_field_datum_io(obj_desc,
+ field_datum_byte_offset,
+ ¤t_value,
+ ACPI_READ);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ merged_value |= (current_value & ~mask);
+ }
+ break;
+
+ case AML_FIELD_UPDATE_WRITE_AS_ONES:
+
+ /* Set positions outside the field to all ones */
+
+ merged_value |= ~mask;
+ break;
+
+ case AML_FIELD_UPDATE_WRITE_AS_ZEROS:
+
+ /* Set positions outside the field to all zeros */
+
+ merged_value &= mask;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown UpdateRule value: %X",
+ (obj_desc->common_field.
+ field_flags &
+ AML_FIELD_UPDATE_RULE_MASK)));
+ return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(mask),
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width,
+ ACPI_FORMAT_UINT64(field_value),
+ ACPI_FORMAT_UINT64(merged_value)));
+
+ /* Write the merged value */
+
+ status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset,
+ &merged_value, ACPI_WRITE);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_extract_from_field
+ *
+ * PARAMETERS: obj_desc - Field to be read
+ * Buffer - Where to store the field data
+ * buffer_length - Length of Buffer
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieve the current value of the given field
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
+ void *buffer, u32 buffer_length)
+{
+ acpi_status status;
+ acpi_integer raw_datum;
+ acpi_integer merged_datum;
+ u32 field_offset = 0;
+ u32 buffer_offset = 0;
+ u32 buffer_tail_bits;
+ u32 datum_count;
+ u32 field_datum_count;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ex_extract_from_field);
+
+ /* Validate target buffer and clear it */
+
+ if (buffer_length <
+ ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) {
+ ACPI_ERROR((AE_INFO,
+ "Field size %X (bits) is too large for buffer (%X)",
+ obj_desc->common_field.bit_length, buffer_length));
+
+ return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
+ }
+ ACPI_MEMSET(buffer, 0, buffer_length);
+
+ /* Compute the number of datums (access width data items) */
+
+ datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
+ obj_desc->common_field.access_bit_width);
+ field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
+ obj_desc->common_field.
+ start_field_bit_offset,
+ obj_desc->common_field.
+ access_bit_width);
+
+ /* Priming read from the field */
+
+ status =
+ acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum,
+ ACPI_READ);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ merged_datum =
+ raw_datum >> obj_desc->common_field.start_field_bit_offset;
+
+ /* Read the rest of the field */
+
+ for (i = 1; i < field_datum_count; i++) {
+
+ /* Get next input datum from the field */
+
+ field_offset += obj_desc->common_field.access_byte_width;
+ status = acpi_ex_field_datum_io(obj_desc, field_offset,
+ &raw_datum, ACPI_READ);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Merge with previous datum if necessary.
+ *
+ * Note: Before the shift, check if the shift value will be larger than
+ * the integer size. If so, there is no need to perform the operation.
+ * This avoids the differences in behavior between different compilers
+ * concerning shift values larger than the target data width.
+ */
+ if ((obj_desc->common_field.access_bit_width -
+ obj_desc->common_field.start_field_bit_offset) <
+ ACPI_INTEGER_BIT_SIZE) {
+ merged_datum |=
+ raw_datum << (obj_desc->common_field.
+ access_bit_width -
+ obj_desc->common_field.
+ start_field_bit_offset);
+ }
+
+ if (i == datum_count) {
+ break;
+ }
+
+ /* Write merged datum to target buffer */
+
+ ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
+
+ buffer_offset += obj_desc->common_field.access_byte_width;
+ merged_datum =
+ raw_datum >> obj_desc->common_field.start_field_bit_offset;
+ }
+
+ /* Mask off any extra bits in the last datum */
+
+ buffer_tail_bits = obj_desc->common_field.bit_length %
+ obj_desc->common_field.access_bit_width;
+ if (buffer_tail_bits) {
+ merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
+ }
+
+ /* Write the last datum to the buffer */
+
+ ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_insert_into_field
+ *
+ * PARAMETERS: obj_desc - Field to be written
+ * Buffer - Data to be written
+ * buffer_length - Length of Buffer
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the Buffer contents into the given field
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
+ void *buffer, u32 buffer_length)
+{
+ acpi_status status;
+ acpi_integer mask;
+ acpi_integer width_mask;
+ acpi_integer merged_datum;
+ acpi_integer raw_datum = 0;
+ u32 field_offset = 0;
+ u32 buffer_offset = 0;
+ u32 buffer_tail_bits;
+ u32 datum_count;
+ u32 field_datum_count;
+ u32 i;
+ u32 required_length;
+ void *new_buffer;
+
+ ACPI_FUNCTION_TRACE(ex_insert_into_field);
+
+ /* Validate input buffer */
+
+ new_buffer = NULL;
+ required_length =
+ ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length);
+ /*
+ * We must have a buffer that is at least as long as the field
+ * we are writing to. This is because individual fields are
+ * indivisible and partial writes are not supported -- as per
+ * the ACPI specification.
+ */
+ if (buffer_length < required_length) {
+
+ /* We need to create a new buffer */
+
+ new_buffer = ACPI_ALLOCATE_ZEROED(required_length);
+ if (!new_buffer) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the original data to the new buffer, starting
+ * at Byte zero. All unused (upper) bytes of the
+ * buffer will be 0.
+ */
+ ACPI_MEMCPY((char *)new_buffer, (char *)buffer, buffer_length);
+ buffer = new_buffer;
+ buffer_length = required_length;
+ }
+
+ /*
+ * Create the bitmasks used for bit insertion.
+ * Note: This if/else is used to bypass compiler differences with the
+ * shift operator
+ */
+ if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) {
+ width_mask = ACPI_INTEGER_MAX;
+ } else {
+ width_mask =
+ ACPI_MASK_BITS_ABOVE(obj_desc->common_field.
+ access_bit_width);
+ }
+
+ mask = width_mask &
+ ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset);
+
+ /* Compute the number of datums (access width data items) */
+
+ datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
+ obj_desc->common_field.access_bit_width);
+
+ field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
+ obj_desc->common_field.
+ start_field_bit_offset,
+ obj_desc->common_field.
+ access_bit_width);
+
+ /* Get initial Datum from the input buffer */
+
+ ACPI_MEMCPY(&raw_datum, buffer,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
+
+ merged_datum =
+ raw_datum << obj_desc->common_field.start_field_bit_offset;
+
+ /* Write the entire field */
+
+ for (i = 1; i < field_datum_count; i++) {
+
+ /* Write merged datum to the target field */
+
+ merged_datum &= mask;
+ status = acpi_ex_write_with_update_rule(obj_desc, mask,
+ merged_datum,
+ field_offset);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ field_offset += obj_desc->common_field.access_byte_width;
+
+ /*
+ * Start new output datum by merging with previous input datum
+ * if necessary.
+ *
+ * Note: Before the shift, check if the shift value will be larger than
+ * the integer size. If so, there is no need to perform the operation.
+ * This avoids the differences in behavior between different compilers
+ * concerning shift values larger than the target data width.
+ */
+ if ((obj_desc->common_field.access_bit_width -
+ obj_desc->common_field.start_field_bit_offset) <
+ ACPI_INTEGER_BIT_SIZE) {
+ merged_datum =
+ raw_datum >> (obj_desc->common_field.
+ access_bit_width -
+ obj_desc->common_field.
+ start_field_bit_offset);
+ } else {
+ merged_datum = 0;
+ }
+
+ mask = width_mask;
+
+ if (i == datum_count) {
+ break;
+ }
+
+ /* Get the next input datum from the buffer */
+
+ buffer_offset += obj_desc->common_field.access_byte_width;
+ ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
+ merged_datum |=
+ raw_datum << obj_desc->common_field.start_field_bit_offset;
+ }
+
+ /* Mask off any extra bits in the last datum */
+
+ buffer_tail_bits = (obj_desc->common_field.bit_length +
+ obj_desc->common_field.start_field_bit_offset) %
+ obj_desc->common_field.access_bit_width;
+ if (buffer_tail_bits) {
+ mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
+ }
+
+ /* Write the last datum to the field */
+
+ merged_datum &= mask;
+ status = acpi_ex_write_with_update_rule(obj_desc,
+ mask, merged_datum,
+ field_offset);
+
+ exit:
+ /* Free temporary buffer if we used one */
+
+ if (new_buffer) {
+ ACPI_FREE(new_buffer);
+ }
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exmisc - ACPI AML (p-code) execution - specific opcodes
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/amlresrc.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exmisc")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_get_object_reference
+ *
+ * PARAMETERS: obj_desc - Create a reference to this object
+ * return_desc - Where to store the reference
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Obtain and return a "reference" to the target object
+ * Common code for the ref_of_op and the cond_ref_of_op.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
+ union acpi_operand_object **return_desc,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *reference_obj;
+ union acpi_operand_object *referenced_obj;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc);
+
+ *return_desc = NULL;
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+ case ACPI_DESC_TYPE_OPERAND:
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_LOCAL_REFERENCE) {
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Must be a reference to a Local or Arg
+ */
+ switch (obj_desc->reference.class) {
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
+ case ACPI_REFCLASS_DEBUG:
+
+ /* The referenced object is the pseudo-node for the local/arg */
+
+ referenced_obj = obj_desc->reference.object;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
+ obj_desc->reference.class));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+ break;
+
+ case ACPI_DESC_TYPE_NAMED:
+
+ /*
+ * A named reference that has already been resolved to a Node
+ */
+ referenced_obj = obj_desc;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Invalid descriptor type %X",
+ ACPI_GET_DESCRIPTOR_TYPE(obj_desc)));
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ /* Create a new reference object */
+
+ reference_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
+ if (!reference_obj) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ reference_obj->reference.class = ACPI_REFCLASS_REFOF;
+ reference_obj->reference.object = referenced_obj;
+ *return_desc = reference_obj;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Object %p Type [%s], returning Reference %p\n",
+ obj_desc, acpi_ut_get_object_type_name(obj_desc),
+ *return_desc));
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_concat_template
+ *
+ * PARAMETERS: Operand0 - First source object
+ * Operand1 - Second source object
+ * actual_return_desc - Where to place the return object
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Concatenate two resource templates
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_concat_template(union acpi_operand_object *operand0,
+ union acpi_operand_object *operand1,
+ union acpi_operand_object **actual_return_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_operand_object *return_desc;
+ u8 *new_buf;
+ u8 *end_tag;
+ acpi_size length0;
+ acpi_size length1;
+ acpi_size new_length;
+
+ ACPI_FUNCTION_TRACE(ex_concat_template);
+
+ /*
+ * Find the end_tag descriptor in each resource template.
+ * Note1: returned pointers point TO the end_tag, not past it.
+ * Note2: zero-length buffers are allowed; treated like one end_tag
+ */
+
+ /* Get the length of the first resource template */
+
+ status = acpi_ut_get_resource_end_tag(operand0, &end_tag);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer);
+
+ /* Get the length of the second resource template */
+
+ status = acpi_ut_get_resource_end_tag(operand1, &end_tag);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer);
+
+ /* Combine both lengths, minimum size will be 2 for end_tag */
+
+ new_length = length0 + length1 + sizeof(struct aml_resource_end_tag);
+
+ /* Create a new buffer object for the result (with one end_tag) */
+
+ return_desc = acpi_ut_create_buffer_object(new_length);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the templates to the new buffer, 0 first, then 1 follows. One
+ * end_tag descriptor is copied from Operand1.
+ */
+ new_buf = return_desc->buffer.pointer;
+ ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0);
+ ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1);
+
+ /* Insert end_tag and set the checksum to zero, means "ignore checksum" */
+
+ new_buf[new_length - 1] = 0;
+ new_buf[new_length - 2] = ACPI_RESOURCE_NAME_END_TAG | 1;
+
+ /* Return the completed resource template */
+
+ *actual_return_desc = return_desc;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_do_concatenate
+ *
+ * PARAMETERS: Operand0 - First source object
+ * Operand1 - Second source object
+ * actual_return_desc - Where to place the return object
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Concatenate two objects OF THE SAME TYPE.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_do_concatenate(union acpi_operand_object *operand0,
+ union acpi_operand_object *operand1,
+ union acpi_operand_object **actual_return_desc,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *local_operand1 = operand1;
+ union acpi_operand_object *return_desc;
+ char *new_buf;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_do_concatenate);
+
+ /*
+ * Convert the second operand if necessary. The first operand
+ * determines the type of the second operand, (See the Data Types
+ * section of the ACPI specification.) Both object types are
+ * guaranteed to be either Integer/String/Buffer by the operand
+ * resolution mechanism.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(operand0)) {
+ case ACPI_TYPE_INTEGER:
+ status =
+ acpi_ex_convert_to_integer(operand1, &local_operand1, 16);
+ break;
+
+ case ACPI_TYPE_STRING:
+ status = acpi_ex_convert_to_string(operand1, &local_operand1,
+ ACPI_IMPLICIT_CONVERT_HEX);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ status = acpi_ex_convert_to_buffer(operand1, &local_operand1);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Invalid object type: %X",
+ ACPI_GET_OBJECT_TYPE(operand0)));
+ status = AE_AML_INTERNAL;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * Both operands are now known to be the same object type
+ * (Both are Integer, String, or Buffer), and we can now perform the
+ * concatenation.
+ */
+
+ /*
+ * There are three cases to handle:
+ *
+ * 1) Two Integers concatenated to produce a new Buffer
+ * 2) Two Strings concatenated to produce a new String
+ * 3) Two Buffers concatenated to produce a new Buffer
+ */
+ switch (ACPI_GET_OBJECT_TYPE(operand0)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Result of two Integers is a Buffer */
+ /* Need enough buffer space for two integers */
+
+ return_desc = acpi_ut_create_buffer_object((acpi_size)
+ ACPI_MUL_2
+ (acpi_gbl_integer_byte_width));
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ new_buf = (char *)return_desc->buffer.pointer;
+
+ /* Copy the first integer, LSB first */
+
+ ACPI_MEMCPY(new_buf, &operand0->integer.value,
+ acpi_gbl_integer_byte_width);
+
+ /* Copy the second integer (LSB first) after the first */
+
+ ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width,
+ &local_operand1->integer.value,
+ acpi_gbl_integer_byte_width);
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ /* Result of two Strings is a String */
+
+ return_desc = acpi_ut_create_string_object(((acpi_size)
+ operand0->string.
+ length +
+ local_operand1->
+ string.length));
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ new_buf = return_desc->string.pointer;
+
+ /* Concatenate the strings */
+
+ ACPI_STRCPY(new_buf, operand0->string.pointer);
+ ACPI_STRCPY(new_buf + operand0->string.length,
+ local_operand1->string.pointer);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ /* Result of two Buffers is a Buffer */
+
+ return_desc = acpi_ut_create_buffer_object(((acpi_size)
+ operand0->buffer.
+ length +
+ local_operand1->
+ buffer.length));
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ new_buf = (char *)return_desc->buffer.pointer;
+
+ /* Concatenate the buffers */
+
+ ACPI_MEMCPY(new_buf, operand0->buffer.pointer,
+ operand0->buffer.length);
+ ACPI_MEMCPY(new_buf + operand0->buffer.length,
+ local_operand1->buffer.pointer,
+ local_operand1->buffer.length);
+ break;
+
+ default:
+
+ /* Invalid object type, should not happen here */
+
+ ACPI_ERROR((AE_INFO, "Invalid object type: %X",
+ ACPI_GET_OBJECT_TYPE(operand0)));
+ status = AE_AML_INTERNAL;
+ goto cleanup;
+ }
+
+ *actual_return_desc = return_desc;
+
+ cleanup:
+ if (local_operand1 != operand1) {
+ acpi_ut_remove_reference(local_operand1);
+ }
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_do_math_op
+ *
+ * PARAMETERS: Opcode - AML opcode
+ * Integer0 - Integer operand #0
+ * Integer1 - Integer operand #1
+ *
+ * RETURN: Integer result of the operation
+ *
+ * DESCRIPTION: Execute a math AML opcode. The purpose of having all of the
+ * math functions here is to prevent a lot of pointer dereferencing
+ * to obtain the operands.
+ *
+ ******************************************************************************/
+
+acpi_integer
+acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ switch (opcode) {
+ case AML_ADD_OP: /* Add (Integer0, Integer1, Result) */
+
+ return (integer0 + integer1);
+
+ case AML_BIT_AND_OP: /* And (Integer0, Integer1, Result) */
+
+ return (integer0 & integer1);
+
+ case AML_BIT_NAND_OP: /* NAnd (Integer0, Integer1, Result) */
+
+ return (~(integer0 & integer1));
+
+ case AML_BIT_OR_OP: /* Or (Integer0, Integer1, Result) */
+
+ return (integer0 | integer1);
+
+ case AML_BIT_NOR_OP: /* NOr (Integer0, Integer1, Result) */
+
+ return (~(integer0 | integer1));
+
+ case AML_BIT_XOR_OP: /* XOr (Integer0, Integer1, Result) */
+
+ return (integer0 ^ integer1);
+
+ case AML_MULTIPLY_OP: /* Multiply (Integer0, Integer1, Result) */
+
+ return (integer0 * integer1);
+
+ case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */
+
+ /*
+ * We need to check if the shiftcount is larger than the integer bit
+ * width since the behavior of this is not well-defined in the C language.
+ */
+ if (integer1 >= acpi_gbl_integer_bit_width) {
+ return (0);
+ }
+ return (integer0 << integer1);
+
+ case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */
+
+ /*
+ * We need to check if the shiftcount is larger than the integer bit
+ * width since the behavior of this is not well-defined in the C language.
+ */
+ if (integer1 >= acpi_gbl_integer_bit_width) {
+ return (0);
+ }
+ return (integer0 >> integer1);
+
+ case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */
+
+ return (integer0 - integer1);
+
+ default:
+
+ return (0);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_do_logical_numeric_op
+ *
+ * PARAMETERS: Opcode - AML opcode
+ * Integer0 - Integer operand #0
+ * Integer1 - Integer operand #1
+ * logical_result - TRUE/FALSE result of the operation
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute a logical "Numeric" AML opcode. For these Numeric
+ * operators (LAnd and LOr), both operands must be integers.
+ *
+ * Note: cleanest machine code seems to be produced by the code
+ * below, rather than using statements of the form:
+ * Result = (Integer0 && Integer1);
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_do_logical_numeric_op(u16 opcode,
+ acpi_integer integer0,
+ acpi_integer integer1, u8 * logical_result)
+{
+ acpi_status status = AE_OK;
+ u8 local_result = FALSE;
+
+ ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op);
+
+ switch (opcode) {
+ case AML_LAND_OP: /* LAnd (Integer0, Integer1) */
+
+ if (integer0 && integer1) {
+ local_result = TRUE;
+ }
+ break;
+
+ case AML_LOR_OP: /* LOr (Integer0, Integer1) */
+
+ if (integer0 || integer1) {
+ local_result = TRUE;
+ }
+ break;
+
+ default:
+ status = AE_AML_INTERNAL;
+ break;
+ }
+
+ /* Return the logical result and status */
+
+ *logical_result = local_result;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_do_logical_op
+ *
+ * PARAMETERS: Opcode - AML opcode
+ * Operand0 - operand #0
+ * Operand1 - operand #1
+ * logical_result - TRUE/FALSE result of the operation
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute a logical AML opcode. The purpose of having all of the
+ * functions here is to prevent a lot of pointer dereferencing
+ * to obtain the operands and to simplify the generation of the
+ * logical value. For the Numeric operators (LAnd and LOr), both
+ * operands must be integers. For the other logical operators,
+ * operands can be any combination of Integer/String/Buffer. The
+ * first operand determines the type to which the second operand
+ * will be converted.
+ *
+ * Note: cleanest machine code seems to be produced by the code
+ * below, rather than using statements of the form:
+ * Result = (Operand0 == Operand1);
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_do_logical_op(u16 opcode,
+ union acpi_operand_object *operand0,
+ union acpi_operand_object *operand1, u8 * logical_result)
+{
+ union acpi_operand_object *local_operand1 = operand1;
+ acpi_integer integer0;
+ acpi_integer integer1;
+ u32 length0;
+ u32 length1;
+ acpi_status status = AE_OK;
+ u8 local_result = FALSE;
+ int compare;
+
+ ACPI_FUNCTION_TRACE(ex_do_logical_op);
+
+ /*
+ * Convert the second operand if necessary. The first operand
+ * determines the type of the second operand, (See the Data Types
+ * section of the ACPI 3.0+ specification.) Both object types are
+ * guaranteed to be either Integer/String/Buffer by the operand
+ * resolution mechanism.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(operand0)) {
+ case ACPI_TYPE_INTEGER:
+ status =
+ acpi_ex_convert_to_integer(operand1, &local_operand1, 16);
+ break;
+
+ case ACPI_TYPE_STRING:
+ status = acpi_ex_convert_to_string(operand1, &local_operand1,
+ ACPI_IMPLICIT_CONVERT_HEX);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ status = acpi_ex_convert_to_buffer(operand1, &local_operand1);
+ break;
+
+ default:
+ status = AE_AML_INTERNAL;
+ break;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * Two cases: 1) Both Integers, 2) Both Strings or Buffers
+ */
+ if (ACPI_GET_OBJECT_TYPE(operand0) == ACPI_TYPE_INTEGER) {
+ /*
+ * 1) Both operands are of type integer
+ * Note: local_operand1 may have changed above
+ */
+ integer0 = operand0->integer.value;
+ integer1 = local_operand1->integer.value;
+
+ switch (opcode) {
+ case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */
+
+ if (integer0 == integer1) {
+ local_result = TRUE;
+ }
+ break;
+
+ case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */
+
+ if (integer0 > integer1) {
+ local_result = TRUE;
+ }
+ break;
+
+ case AML_LLESS_OP: /* LLess (Operand0, Operand1) */
+
+ if (integer0 < integer1) {
+ local_result = TRUE;
+ }
+ break;
+
+ default:
+ status = AE_AML_INTERNAL;
+ break;
+ }
+ } else {
+ /*
+ * 2) Both operands are Strings or both are Buffers
+ * Note: Code below takes advantage of common Buffer/String
+ * object fields. local_operand1 may have changed above. Use
+ * memcmp to handle nulls in buffers.
+ */
+ length0 = operand0->buffer.length;
+ length1 = local_operand1->buffer.length;
+
+ /* Lexicographic compare: compare the data bytes */
+
+ compare = ACPI_MEMCMP(operand0->buffer.pointer,
+ local_operand1->buffer.pointer,
+ (length0 > length1) ? length1 : length0);
+
+ switch (opcode) {
+ case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */
+
+ /* Length and all bytes must be equal */
+
+ if ((length0 == length1) && (compare == 0)) {
+
+ /* Length and all bytes match ==> TRUE */
+
+ local_result = TRUE;
+ }
+ break;
+
+ case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */
+
+ if (compare > 0) {
+ local_result = TRUE;
+ goto cleanup; /* TRUE */
+ }
+ if (compare < 0) {
+ goto cleanup; /* FALSE */
+ }
+
+ /* Bytes match (to shortest length), compare lengths */
+
+ if (length0 > length1) {
+ local_result = TRUE;
+ }
+ break;
+
+ case AML_LLESS_OP: /* LLess (Operand0, Operand1) */
+
+ if (compare > 0) {
+ goto cleanup; /* FALSE */
+ }
+ if (compare < 0) {
+ local_result = TRUE;
+ goto cleanup; /* TRUE */
+ }
+
+ /* Bytes match (to shortest length), compare lengths */
+
+ if (length0 < length1) {
+ local_result = TRUE;
+ }
+ break;
+
+ default:
+ status = AE_AML_INTERNAL;
+ break;
+ }
+ }
+
+ cleanup:
+
+ /* New object was created if implicit conversion performed - delete */
+
+ if (local_operand1 != operand1) {
+ acpi_ut_remove_reference(local_operand1);
+ }
+
+ /* Return the logical result and status */
+
+ *logical_result = local_result;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exmutex - ASL Mutex Acquire/Release functions
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exmutex")
+
+/* Local prototypes */
+static void
+acpi_ex_link_mutex(union acpi_operand_object *obj_desc,
+ struct acpi_thread_state *thread);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_unlink_mutex
+ *
+ * PARAMETERS: obj_desc - The mutex to be unlinked
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list
+ *
+ ******************************************************************************/
+
+void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc)
+{
+ struct acpi_thread_state *thread = obj_desc->mutex.owner_thread;
+
+ if (!thread) {
+ return;
+ }
+
+ /* Doubly linked list */
+
+ if (obj_desc->mutex.next) {
+ (obj_desc->mutex.next)->mutex.prev = obj_desc->mutex.prev;
+ }
+
+ if (obj_desc->mutex.prev) {
+ (obj_desc->mutex.prev)->mutex.next = obj_desc->mutex.next;
+ } else {
+ thread->acquired_mutex_list = obj_desc->mutex.next;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_link_mutex
+ *
+ * PARAMETERS: obj_desc - The mutex to be linked
+ * Thread - Current executing thread object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk
+ *
+ ******************************************************************************/
+
+static void
+acpi_ex_link_mutex(union acpi_operand_object *obj_desc,
+ struct acpi_thread_state *thread)
+{
+ union acpi_operand_object *list_head;
+
+ list_head = thread->acquired_mutex_list;
+
+ /* This object will be the first object in the list */
+
+ obj_desc->mutex.prev = NULL;
+ obj_desc->mutex.next = list_head;
+
+ /* Update old first object to point back to this object */
+
+ if (list_head) {
+ list_head->mutex.prev = obj_desc;
+ }
+
+ /* Update list head */
+
+ thread->acquired_mutex_list = obj_desc;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_acquire_mutex_object
+ *
+ * PARAMETERS: time_desc - Timeout in milliseconds
+ * obj_desc - Mutex object
+ * Thread - Current thread state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Acquire an AML mutex, low-level interface. Provides a common
+ * path that supports multiple acquires by the same thread.
+ *
+ * MUTEX: Interpreter must be locked
+ *
+ * NOTE: This interface is called from three places:
+ * 1) From acpi_ex_acquire_mutex, via an AML Acquire() operator
+ * 2) From acpi_ex_acquire_global_lock when an AML Field access requires the
+ * global lock
+ * 3) From the external interface, acpi_acquire_global_lock
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_acquire_mutex_object(u16 timeout,
+ union acpi_operand_object *obj_desc,
+ acpi_thread_id thread_id)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex_object, obj_desc);
+
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Support for multiple acquires by the owning thread */
+
+ if (obj_desc->mutex.thread_id == thread_id) {
+ /*
+ * The mutex is already owned by this thread, just increment the
+ * acquisition depth
+ */
+ obj_desc->mutex.acquisition_depth++;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Acquire the mutex, wait if necessary. Special case for Global Lock */
+
+ if (obj_desc == acpi_gbl_global_lock_mutex) {
+ status = acpi_ev_acquire_global_lock(timeout);
+ } else {
+ status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex,
+ timeout);
+ }
+
+ if (ACPI_FAILURE(status)) {
+
+ /* Includes failure from a timeout on time_desc */
+
+ return_ACPI_STATUS(status);
+ }
+
+ /* Acquired the mutex: update mutex object */
+
+ obj_desc->mutex.thread_id = thread_id;
+ obj_desc->mutex.acquisition_depth = 1;
+ obj_desc->mutex.original_sync_level = 0;
+ obj_desc->mutex.owner_thread = NULL; /* Used only for AML Acquire() */
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_acquire_mutex
+ *
+ * PARAMETERS: time_desc - Timeout integer
+ * obj_desc - Mutex object
+ * walk_state - Current method execution state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Acquire an AML mutex
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
+ union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc);
+
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Must have a valid thread ID */
+
+ if (!walk_state->thread) {
+ ACPI_ERROR((AE_INFO,
+ "Cannot acquire Mutex [%4.4s], null thread info",
+ acpi_ut_get_node_name(obj_desc->mutex.node)));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /*
+ * Current sync level must be less than or equal to the sync level of the
+ * mutex. This mechanism provides some deadlock prevention
+ */
+ if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) {
+ ACPI_ERROR((AE_INFO,
+ "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%d)",
+ acpi_ut_get_node_name(obj_desc->mutex.node),
+ walk_state->thread->current_sync_level));
+ return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
+ }
+
+ status = acpi_ex_acquire_mutex_object((u16) time_desc->integer.value,
+ obj_desc,
+ walk_state->thread->thread_id);
+ if (ACPI_SUCCESS(status) && obj_desc->mutex.acquisition_depth == 1) {
+
+ /* Save Thread object, original/current sync levels */
+
+ obj_desc->mutex.owner_thread = walk_state->thread;
+ obj_desc->mutex.original_sync_level =
+ walk_state->thread->current_sync_level;
+ walk_state->thread->current_sync_level =
+ obj_desc->mutex.sync_level;
+
+ /* Link the mutex to the current thread for force-unlock at method exit */
+
+ acpi_ex_link_mutex(obj_desc, walk_state->thread);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_release_mutex_object
+ *
+ * PARAMETERS: obj_desc - The object descriptor for this op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Release a previously acquired Mutex, low level interface.
+ * Provides a common path that supports multiple releases (after
+ * previous multiple acquires) by the same thread.
+ *
+ * MUTEX: Interpreter must be locked
+ *
+ * NOTE: This interface is called from three places:
+ * 1) From acpi_ex_release_mutex, via an AML Acquire() operator
+ * 2) From acpi_ex_release_global_lock when an AML Field access requires the
+ * global lock
+ * 3) From the external interface, acpi_release_global_lock
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_release_mutex_object);
+
+ if (obj_desc->mutex.acquisition_depth == 0) {
+ return (AE_NOT_ACQUIRED);
+ }
+
+ /* Match multiple Acquires with multiple Releases */
+
+ obj_desc->mutex.acquisition_depth--;
+ if (obj_desc->mutex.acquisition_depth != 0) {
+
+ /* Just decrement the depth and return */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ if (obj_desc->mutex.owner_thread) {
+
+ /* Unlink the mutex from the owner's list */
+
+ acpi_ex_unlink_mutex(obj_desc);
+ obj_desc->mutex.owner_thread = NULL;
+ }
+
+ /* Release the mutex, special case for Global Lock */
+
+ if (obj_desc == acpi_gbl_global_lock_mutex) {
+ status = acpi_ev_release_global_lock();
+ } else {
+ acpi_os_release_mutex(obj_desc->mutex.os_mutex);
+ }
+
+ /* Clear mutex info */
+
+ obj_desc->mutex.thread_id = NULL;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_release_mutex
+ *
+ * PARAMETERS: obj_desc - The object descriptor for this op
+ * walk_state - Current method execution state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Release a previously acquired Mutex.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_release_mutex);
+
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* The mutex must have been previously acquired in order to release it */
+
+ if (!obj_desc->mutex.owner_thread) {
+ ACPI_ERROR((AE_INFO,
+ "Cannot release Mutex [%4.4s], not acquired",
+ acpi_ut_get_node_name(obj_desc->mutex.node)));
+ return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED);
+ }
+
+ /*
+ * The Mutex is owned, but this thread must be the owner.
+ * Special case for Global Lock, any thread can release
+ */
+ if ((obj_desc->mutex.owner_thread->thread_id !=
+ walk_state->thread->thread_id)
+ && (obj_desc != acpi_gbl_global_lock_mutex)) {
+ ACPI_ERROR((AE_INFO,
+ "Thread %lX cannot release Mutex [%4.4s] acquired by thread %lX",
+ (unsigned long)walk_state->thread->thread_id,
+ acpi_ut_get_node_name(obj_desc->mutex.node),
+ (unsigned long)obj_desc->mutex.owner_thread->
+ thread_id));
+ return_ACPI_STATUS(AE_AML_NOT_OWNER);
+ }
+
+ /* Must have a valid thread ID */
+
+ if (!walk_state->thread) {
+ ACPI_ERROR((AE_INFO,
+ "Cannot release Mutex [%4.4s], null thread info",
+ acpi_ut_get_node_name(obj_desc->mutex.node)));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /*
+ * The sync level of the mutex must be less than or equal to the current
+ * sync level
+ */
+ if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) {
+ ACPI_ERROR((AE_INFO,
+ "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d",
+ acpi_ut_get_node_name(obj_desc->mutex.node),
+ obj_desc->mutex.sync_level,
+ walk_state->thread->current_sync_level));
+ return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
+ }
+
+ status = acpi_ex_release_mutex_object(obj_desc);
+
+ if (obj_desc->mutex.acquisition_depth == 0) {
+
+ /* Restore the original sync_level */
+
+ walk_state->thread->current_sync_level =
+ obj_desc->mutex.original_sync_level;
+ }
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_release_all_mutexes
+ *
+ * PARAMETERS: Thread - Current executing thread object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Release all mutexes held by this thread
+ *
+ * NOTE: This function is called as the thread is exiting the interpreter.
+ * Mutexes are not released when an individual control method is exited, but
+ * only when the parent thread actually exits the interpreter. This allows one
+ * method to acquire a mutex, and a different method to release it, as long as
+ * this is performed underneath a single parent control method.
+ *
+ ******************************************************************************/
+
+void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread)
+{
+ union acpi_operand_object *next = thread->acquired_mutex_list;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Traverse the list of owned mutexes, releasing each one */
+
+ while (next) {
+ obj_desc = next;
+ next = obj_desc->mutex.next;
+
+ obj_desc->mutex.prev = NULL;
+ obj_desc->mutex.next = NULL;
+ obj_desc->mutex.acquisition_depth = 0;
+
+ /* Release the mutex, special case for Global Lock */
+
+ if (obj_desc == acpi_gbl_global_lock_mutex) {
+
+ /* Ignore errors */
+
+ (void)acpi_ev_release_global_lock();
+ } else {
+ acpi_os_release_mutex(obj_desc->mutex.os_mutex);
+ }
+
+ /* Mark mutex unowned */
+
+ obj_desc->mutex.owner_thread = NULL;
+ obj_desc->mutex.thread_id = NULL;
+
+ /* Update Thread sync_level (Last mutex is the important one) */
+
+ thread->current_sync_level =
+ obj_desc->mutex.original_sync_level;
+ }
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exnames - interpreter/scanner name load/execute
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exnames")
+
+/* Local prototypes */
+static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs);
+
+static acpi_status
+acpi_ex_name_segment(u8 ** in_aml_address, char *name_string);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_allocate_name_string
+ *
+ * PARAMETERS: prefix_count - Count of parent levels. Special cases:
+ * (-1)==root, 0==none
+ * num_name_segs - count of 4-character name segments
+ *
+ * RETURN: A pointer to the allocated string segment. This segment must
+ * be deleted by the caller.
+ *
+ * DESCRIPTION: Allocate a buffer for a name string. Ensure allocated name
+ * string is long enough, and set up prefix if any.
+ *
+ ******************************************************************************/
+
+static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
+{
+ char *temp_ptr;
+ char *name_string;
+ u32 size_needed;
+
+ ACPI_FUNCTION_TRACE(ex_allocate_name_string);
+
+ /*
+ * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix.
+ * Also, one byte for the null terminator.
+ * This may actually be somewhat longer than needed.
+ */
+ if (prefix_count == ACPI_UINT32_MAX) {
+
+ /* Special case for root */
+
+ size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
+ } else {
+ size_needed =
+ prefix_count + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
+ }
+
+ /*
+ * Allocate a buffer for the name.
+ * This buffer must be deleted by the caller!
+ */
+ name_string = ACPI_ALLOCATE(size_needed);
+ if (!name_string) {
+ ACPI_ERROR((AE_INFO,
+ "Could not allocate size %d", size_needed));
+ return_PTR(NULL);
+ }
+
+ temp_ptr = name_string;
+
+ /* Set up Root or Parent prefixes if needed */
+
+ if (prefix_count == ACPI_UINT32_MAX) {
+ *temp_ptr++ = AML_ROOT_PREFIX;
+ } else {
+ while (prefix_count--) {
+ *temp_ptr++ = AML_PARENT_PREFIX;
+ }
+ }
+
+ /* Set up Dual or Multi prefixes if needed */
+
+ if (num_name_segs > 2) {
+
+ /* Set up multi prefixes */
+
+ *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP;
+ *temp_ptr++ = (char)num_name_segs;
+ } else if (2 == num_name_segs) {
+
+ /* Set up dual prefixes */
+
+ *temp_ptr++ = AML_DUAL_NAME_PREFIX;
+ }
+
+ /*
+ * Terminate string following prefixes. acpi_ex_name_segment() will
+ * append the segment(s)
+ */
+ *temp_ptr = 0;
+
+ return_PTR(name_string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_name_segment
+ *
+ * PARAMETERS: in_aml_address - Pointer to the name in the AML code
+ * name_string - Where to return the name. The name is appended
+ * to any existing string to form a namepath
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Extract an ACPI name (4 bytes) from the AML byte stream
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
+{
+ char *aml_address = (void *)*in_aml_address;
+ acpi_status status = AE_OK;
+ u32 index;
+ char char_buf[5];
+
+ ACPI_FUNCTION_TRACE(ex_name_segment);
+
+ /*
+ * If first character is a digit, then we know that we aren't looking at a
+ * valid name segment
+ */
+ char_buf[0] = *aml_address;
+
+ if ('0' <= char_buf[0] && char_buf[0] <= '9') {
+ ACPI_ERROR((AE_INFO, "Invalid leading digit: %c", char_buf[0]));
+ return_ACPI_STATUS(AE_CTRL_PENDING);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Bytes from stream:\n"));
+
+ for (index = 0; (index < ACPI_NAME_SIZE)
+ && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) {
+ char_buf[index] = *aml_address++;
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index]));
+ }
+
+ /* Valid name segment */
+
+ if (index == 4) {
+
+ /* Found 4 valid characters */
+
+ char_buf[4] = '\0';
+
+ if (name_string) {
+ ACPI_STRCAT(name_string, char_buf);
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Appended to - %s\n", name_string));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "No Name string - %s\n", char_buf));
+ }
+ } else if (index == 0) {
+ /*
+ * First character was not a valid name character,
+ * so we are looking at something other than a name.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Leading character is not alpha: %02Xh (not a name)\n",
+ char_buf[0]));
+ status = AE_CTRL_PENDING;
+ } else {
+ /*
+ * Segment started with one or more valid characters, but fewer than
+ * the required 4
+ */
+ status = AE_AML_BAD_NAME;
+ ACPI_ERROR((AE_INFO,
+ "Bad character %02x in name, at %p",
+ *aml_address, aml_address));
+ }
+
+ *in_aml_address = ACPI_CAST_PTR(u8, aml_address);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_get_name_string
+ *
+ * PARAMETERS: data_type - Object type to be associated with this
+ * name
+ * in_aml_address - Pointer to the namestring in the AML code
+ * out_name_string - Where the namestring is returned
+ * out_name_length - Length of the returned string
+ *
+ * RETURN: Status, namestring and length
+ *
+ * DESCRIPTION: Extract a full namepath from the AML byte stream,
+ * including any prefixes.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_get_name_string(acpi_object_type data_type,
+ u8 * in_aml_address,
+ char **out_name_string, u32 * out_name_length)
+{
+ acpi_status status = AE_OK;
+ u8 *aml_address = in_aml_address;
+ char *name_string = NULL;
+ u32 num_segments;
+ u32 prefix_count = 0;
+ u8 has_prefix = FALSE;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address);
+
+ if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type ||
+ ACPI_TYPE_LOCAL_BANK_FIELD == data_type ||
+ ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) {
+
+ /* Disallow prefixes for types associated with field_unit names */
+
+ name_string = acpi_ex_allocate_name_string(0, 1);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ } else {
+ status =
+ acpi_ex_name_segment(&aml_address, name_string);
+ }
+ } else {
+ /*
+ * data_type is not a field name.
+ * Examine first character of name for root or parent prefix operators
+ */
+ switch (*aml_address) {
+ case AML_ROOT_PREFIX:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "RootPrefix(\\) at %p\n",
+ aml_address));
+
+ /*
+ * Remember that we have a root_prefix --
+ * see comment in acpi_ex_allocate_name_string()
+ */
+ aml_address++;
+ prefix_count = ACPI_UINT32_MAX;
+ has_prefix = TRUE;
+ break;
+
+ case AML_PARENT_PREFIX:
+
+ /* Increment past possibly multiple parent prefixes */
+
+ do {
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "ParentPrefix (^) at %p\n",
+ aml_address));
+
+ aml_address++;
+ prefix_count++;
+
+ } while (*aml_address == AML_PARENT_PREFIX);
+
+ has_prefix = TRUE;
+ break;
+
+ default:
+
+ /* Not a prefix character */
+
+ break;
+ }
+
+ /* Examine first character of name for name segment prefix operator */
+
+ switch (*aml_address) {
+ case AML_DUAL_NAME_PREFIX:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "DualNamePrefix at %p\n",
+ aml_address));
+
+ aml_address++;
+ name_string =
+ acpi_ex_allocate_name_string(prefix_count, 2);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ /* Indicate that we processed a prefix */
+
+ has_prefix = TRUE;
+
+ status =
+ acpi_ex_name_segment(&aml_address, name_string);
+ if (ACPI_SUCCESS(status)) {
+ status =
+ acpi_ex_name_segment(&aml_address,
+ name_string);
+ }
+ break;
+
+ case AML_MULTI_NAME_PREFIX_OP:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
+ "MultiNamePrefix at %p\n",
+ aml_address));
+
+ /* Fetch count of segments remaining in name path */
+
+ aml_address++;
+ num_segments = *aml_address;
+
+ name_string =
+ acpi_ex_allocate_name_string(prefix_count,
+ num_segments);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ /* Indicate that we processed a prefix */
+
+ aml_address++;
+ has_prefix = TRUE;
+
+ while (num_segments &&
+ (status =
+ acpi_ex_name_segment(&aml_address,
+ name_string)) == AE_OK) {
+ num_segments--;
+ }
+
+ break;
+
+ case 0:
+
+ /* null_name valid as of 8-12-98 ASL/AML Grammar Update */
+
+ if (prefix_count == ACPI_UINT32_MAX) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "NameSeg is \"\\\" followed by NULL\n"));
+ }
+
+ /* Consume the NULL byte */
+
+ aml_address++;
+ name_string =
+ acpi_ex_allocate_name_string(prefix_count, 0);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ break;
+
+ default:
+
+ /* Name segment string */
+
+ name_string =
+ acpi_ex_allocate_name_string(prefix_count, 1);
+ if (!name_string) {
+ status = AE_NO_MEMORY;
+ break;
+ }
+
+ status =
+ acpi_ex_name_segment(&aml_address, name_string);
+ break;
+ }
+ }
+
+ if (AE_CTRL_PENDING == status && has_prefix) {
+
+ /* Ran out of segments after processing a prefix */
+
+ ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string));
+ status = AE_AML_BAD_NAME;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ if (name_string) {
+ ACPI_FREE(name_string);
+ }
+ return_ACPI_STATUS(status);
+ }
+
+ *out_name_string = name_string;
+ *out_name_length = (u32) (aml_address - in_aml_address);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exoparg1 - AML execution - opcodes with 1 argument
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exoparg1")
+
+/*!
+ * Naming convention for AML interpreter execution routines.
+ *
+ * The routines that begin execution of AML opcodes are named with a common
+ * convention based upon the number of arguments, the number of target operands,
+ * and whether or not a value is returned:
+ *
+ * AcpiExOpcode_xA_yT_zR
+ *
+ * Where:
+ *
+ * xA - ARGUMENTS: The number of arguments (input operands) that are
+ * required for this opcode type (0 through 6 args).
+ * yT - TARGETS: The number of targets (output operands) that are required
+ * for this opcode type (0, 1, or 2 targets).
+ * zR - RETURN VALUE: Indicates whether this opcode type returns a value
+ * as the function return (0 or 1).
+ *
+ * The AcpiExOpcode* functions are called via the Dispatcher component with
+ * fully resolved operands.
+!*/
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_0A_0T_1R
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute operator with no operands, one return value
+ *
+ ******************************************************************************/
+acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *return_desc = NULL;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the AML opcode */
+
+ switch (walk_state->opcode) {
+ case AML_TIMER_OP: /* Timer () */
+
+ /* Create a return object of type Integer */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+ return_desc->integer.value = acpi_os_get_timer();
+ break;
+
+ default: /* Unknown opcode */
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ break;
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if ((ACPI_FAILURE(status)) || walk_state->result_obj) {
+ acpi_ut_remove_reference(return_desc);
+ walk_state->result_obj = NULL;
+ } else {
+ /* Save the return value */
+
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_1A_0T_0R
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on
+ * object stack
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the AML opcode */
+
+ switch (walk_state->opcode) {
+ case AML_RELEASE_OP: /* Release (mutex_object) */
+
+ status = acpi_ex_release_mutex(operand[0], walk_state);
+ break;
+
+ case AML_RESET_OP: /* Reset (event_object) */
+
+ status = acpi_ex_system_reset_event(operand[0]);
+ break;
+
+ case AML_SIGNAL_OP: /* Signal (event_object) */
+
+ status = acpi_ex_system_signal_event(operand[0]);
+ break;
+
+ case AML_SLEEP_OP: /* Sleep (msec_time) */
+
+ status = acpi_ex_system_do_suspend(operand[0]->integer.value);
+ break;
+
+ case AML_STALL_OP: /* Stall (usec_time) */
+
+ status =
+ acpi_ex_system_do_stall((u32) operand[0]->integer.value);
+ break;
+
+ case AML_UNLOAD_OP: /* Unload (Handle) */
+
+ status = acpi_ex_unload_table(operand[0]);
+ break;
+
+ default: /* Unknown opcode */
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_1A_1T_0R
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with one argument, one target, and no
+ * return value.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the AML opcode */
+
+ switch (walk_state->opcode) {
+ case AML_LOAD_OP:
+
+ status = acpi_ex_load_op(operand[0], operand[1], walk_state);
+ break;
+
+ default: /* Unknown opcode */
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ cleanup:
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_1A_1T_1R
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with one argument, one target, and a
+ * return value.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc = NULL;
+ union acpi_operand_object *return_desc2 = NULL;
+ u32 temp32;
+ u32 i;
+ acpi_integer power_of_ten;
+ acpi_integer digit;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the AML opcode */
+
+ switch (walk_state->opcode) {
+ case AML_BIT_NOT_OP:
+ case AML_FIND_SET_LEFT_BIT_OP:
+ case AML_FIND_SET_RIGHT_BIT_OP:
+ case AML_FROM_BCD_OP:
+ case AML_TO_BCD_OP:
+ case AML_COND_REF_OF_OP:
+
+ /* Create a return object of type Integer for these opcodes */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ switch (walk_state->opcode) {
+ case AML_BIT_NOT_OP: /* Not (Operand, Result) */
+
+ return_desc->integer.value = ~operand[0]->integer.value;
+ break;
+
+ case AML_FIND_SET_LEFT_BIT_OP: /* find_set_left_bit (Operand, Result) */
+
+ return_desc->integer.value = operand[0]->integer.value;
+
+ /*
+ * Acpi specification describes Integer type as a little
+ * endian unsigned value, so this boundary condition is valid.
+ */
+ for (temp32 = 0; return_desc->integer.value &&
+ temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
+ return_desc->integer.value >>= 1;
+ }
+
+ return_desc->integer.value = temp32;
+ break;
+
+ case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */
+
+ return_desc->integer.value = operand[0]->integer.value;
+
+ /*
+ * The Acpi specification describes Integer type as a little
+ * endian unsigned value, so this boundary condition is valid.
+ */
+ for (temp32 = 0; return_desc->integer.value &&
+ temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
+ return_desc->integer.value <<= 1;
+ }
+
+ /* Since the bit position is one-based, subtract from 33 (65) */
+
+ return_desc->integer.value =
+ temp32 ==
+ 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
+ break;
+
+ case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */
+
+ /*
+ * The 64-bit ACPI integer can hold 16 4-bit BCD characters
+ * (if table is 32-bit, integer can hold 8 BCD characters)
+ * Convert each 4-bit BCD value
+ */
+ power_of_ten = 1;
+ return_desc->integer.value = 0;
+ digit = operand[0]->integer.value;
+
+ /* Convert each BCD digit (each is one nybble wide) */
+
+ for (i = 0;
+ (i < acpi_gbl_integer_nybble_width) && (digit > 0);
+ i++) {
+
+ /* Get the least significant 4-bit BCD digit */
+
+ temp32 = ((u32) digit) & 0xF;
+
+ /* Check the range of the digit */
+
+ if (temp32 > 9) {
+ ACPI_ERROR((AE_INFO,
+ "BCD digit too large (not decimal): 0x%X",
+ temp32));
+
+ status = AE_AML_NUMERIC_OVERFLOW;
+ goto cleanup;
+ }
+
+ /* Sum the digit into the result with the current power of 10 */
+
+ return_desc->integer.value +=
+ (((acpi_integer) temp32) * power_of_ten);
+
+ /* Shift to next BCD digit */
+
+ digit >>= 4;
+
+ /* Next power of 10 */
+
+ power_of_ten *= 10;
+ }
+ break;
+
+ case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */
+
+ return_desc->integer.value = 0;
+ digit = operand[0]->integer.value;
+
+ /* Each BCD digit is one nybble wide */
+
+ for (i = 0;
+ (i < acpi_gbl_integer_nybble_width) && (digit > 0);
+ i++) {
+ (void)acpi_ut_short_divide(digit, 10, &digit,
+ &temp32);
+
+ /*
+ * Insert the BCD digit that resides in the
+ * remainder from above
+ */
+ return_desc->integer.value |=
+ (((acpi_integer) temp32) << ACPI_MUL_4(i));
+ }
+
+ /* Overflow if there is any data left in Digit */
+
+ if (digit > 0) {
+ ACPI_ERROR((AE_INFO,
+ "Integer too large to convert to BCD: %8.8X%8.8X",
+ ACPI_FORMAT_UINT64(operand[0]->
+ integer.value)));
+ status = AE_AML_NUMERIC_OVERFLOW;
+ goto cleanup;
+ }
+ break;
+
+ case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */
+
+ /*
+ * This op is a little strange because the internal return value is
+ * different than the return value stored in the result descriptor
+ * (There are really two return values)
+ */
+ if ((struct acpi_namespace_node *)operand[0] ==
+ acpi_gbl_root_node) {
+ /*
+ * This means that the object does not exist in the namespace,
+ * return FALSE
+ */
+ return_desc->integer.value = 0;
+ goto cleanup;
+ }
+
+ /* Get the object reference, store it, and remove our reference */
+
+ status = acpi_ex_get_object_reference(operand[0],
+ &return_desc2,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ status =
+ acpi_ex_store(return_desc2, operand[1], walk_state);
+ acpi_ut_remove_reference(return_desc2);
+
+ /* The object exists in the namespace, return TRUE */
+
+ return_desc->integer.value = ACPI_INTEGER_MAX;
+ goto cleanup;
+
+ default:
+ /* No other opcodes get here */
+ break;
+ }
+ break;
+
+ case AML_STORE_OP: /* Store (Source, Target) */
+
+ /*
+ * A store operand is typically a number, string, buffer or lvalue
+ * Be careful about deleting the source object,
+ * since the object itself may have been stored.
+ */
+ status = acpi_ex_store(operand[0], operand[1], walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* It is possible that the Store already produced a return object */
+
+ if (!walk_state->result_obj) {
+ /*
+ * Normally, we would remove a reference on the Operand[0]
+ * parameter; But since it is being used as the internal return
+ * object (meaning we would normally increment it), the two
+ * cancel out, and we simply don't do anything.
+ */
+ walk_state->result_obj = operand[0];
+ walk_state->operands[0] = NULL; /* Prevent deletion */
+ }
+ return_ACPI_STATUS(status);
+
+ /*
+ * ACPI 2.0 Opcodes
+ */
+ case AML_COPY_OP: /* Copy (Source, Target) */
+
+ status =
+ acpi_ut_copy_iobject_to_iobject(operand[0], &return_desc,
+ walk_state);
+ break;
+
+ case AML_TO_DECSTRING_OP: /* to_decimal_string (Data, Result) */
+
+ status = acpi_ex_convert_to_string(operand[0], &return_desc,
+ ACPI_EXPLICIT_CONVERT_DECIMAL);
+ if (return_desc == operand[0]) {
+
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
+ break;
+
+ case AML_TO_HEXSTRING_OP: /* to_hex_string (Data, Result) */
+
+ status = acpi_ex_convert_to_string(operand[0], &return_desc,
+ ACPI_EXPLICIT_CONVERT_HEX);
+ if (return_desc == operand[0]) {
+
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
+ break;
+
+ case AML_TO_BUFFER_OP: /* to_buffer (Data, Result) */
+
+ status = acpi_ex_convert_to_buffer(operand[0], &return_desc);
+ if (return_desc == operand[0]) {
+
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
+ break;
+
+ case AML_TO_INTEGER_OP: /* to_integer (Data, Result) */
+
+ status = acpi_ex_convert_to_integer(operand[0], &return_desc,
+ ACPI_ANY_BASE);
+ if (return_desc == operand[0]) {
+
+ /* No conversion performed, add ref to handle return value */
+ acpi_ut_add_reference(return_desc);
+ }
+ break;
+
+ case AML_SHIFT_LEFT_BIT_OP: /* shift_left_bit (Source, bit_num) */
+ case AML_SHIFT_RIGHT_BIT_OP: /* shift_right_bit (Source, bit_num) */
+
+ /* These are two obsolete opcodes */
+
+ ACPI_ERROR((AE_INFO,
+ "%s is obsolete and not implemented",
+ acpi_ps_get_opcode_name(walk_state->opcode)));
+ status = AE_SUPPORT;
+ goto cleanup;
+
+ default: /* Unknown opcode */
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ if (ACPI_SUCCESS(status)) {
+
+ /* Store the return value computed above into the target object */
+
+ status = acpi_ex_store(return_desc, operand[1], walk_state);
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
+ }
+
+ /* Save return object on success */
+
+ else if (!walk_state->result_obj) {
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_1A_0T_1R
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with one argument, no target, and a return value
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *temp_desc;
+ union acpi_operand_object *return_desc = NULL;
+ acpi_status status = AE_OK;
+ u32 type;
+ acpi_integer value;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the AML opcode */
+
+ switch (walk_state->opcode) {
+ case AML_LNOT_OP: /* LNot (Operand) */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Set result to ONES (TRUE) if Value == 0. Note:
+ * return_desc->Integer.Value is initially == 0 (FALSE) from above.
+ */
+ if (!operand[0]->integer.value) {
+ return_desc->integer.value = ACPI_INTEGER_MAX;
+ }
+ break;
+
+ case AML_DECREMENT_OP: /* Decrement (Operand) */
+ case AML_INCREMENT_OP: /* Increment (Operand) */
+
+ /*
+ * Create a new integer. Can't just get the base integer and
+ * increment it because it may be an Arg or Field.
+ */
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Since we are expecting a Reference operand, it can be either a
+ * NS Node or an internal object.
+ */
+ temp_desc = operand[0];
+ if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) ==
+ ACPI_DESC_TYPE_OPERAND) {
+
+ /* Internal reference object - prevent deletion */
+
+ acpi_ut_add_reference(temp_desc);
+ }
+
+ /*
+ * Convert the Reference operand to an Integer (This removes a
+ * reference on the Operand[0] object)
+ *
+ * NOTE: We use LNOT_OP here in order to force resolution of the
+ * reference operand to an actual integer.
+ */
+ status =
+ acpi_ex_resolve_operands(AML_LNOT_OP, &temp_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While resolving operands for [%s]",
+ acpi_ps_get_opcode_name(walk_state->
+ opcode)));
+
+ goto cleanup;
+ }
+
+ /*
+ * temp_desc is now guaranteed to be an Integer object --
+ * Perform the actual increment or decrement
+ */
+ if (walk_state->opcode == AML_INCREMENT_OP) {
+ return_desc->integer.value =
+ temp_desc->integer.value + 1;
+ } else {
+ return_desc->integer.value =
+ temp_desc->integer.value - 1;
+ }
+
+ /* Finished with this Integer object */
+
+ acpi_ut_remove_reference(temp_desc);
+
+ /*
+ * Store the result back (indirectly) through the original
+ * Reference object
+ */
+ status = acpi_ex_store(return_desc, operand[0], walk_state);
+ break;
+
+ case AML_TYPE_OP: /* object_type (source_object) */
+
+ /*
+ * Note: The operand is not resolved at this point because we want to
+ * get the associated object, not its value. For example, we don't
+ * want to resolve a field_unit to its value, we want the actual
+ * field_unit object.
+ */
+
+ /* Get the type of the base object */
+
+ status =
+ acpi_ex_resolve_multiple(walk_state, operand[0], &type,
+ NULL);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Allocate a descriptor to hold the type. */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ return_desc->integer.value = type;
+ break;
+
+ case AML_SIZE_OF_OP: /* size_of (source_object) */
+
+ /*
+ * Note: The operand is not resolved at this point because we want to
+ * get the associated object, not its value.
+ */
+
+ /* Get the base object */
+
+ status = acpi_ex_resolve_multiple(walk_state,
+ operand[0], &type,
+ &temp_desc);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * The type of the base object must be integer, buffer, string, or
+ * package. All others are not supported.
+ *
+ * NOTE: Integer is not specifically supported by the ACPI spec,
+ * but is supported implicitly via implicit operand conversion.
+ * rather than bother with conversion, we just use the byte width
+ * global (4 or 8 bytes).
+ */
+ switch (type) {
+ case ACPI_TYPE_INTEGER:
+ value = acpi_gbl_integer_byte_width;
+ break;
+
+ case ACPI_TYPE_STRING:
+ value = temp_desc->string.length;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ /* Buffer arguments may not be evaluated at this point */
+
+ status = acpi_ds_get_buffer_arguments(temp_desc);
+ value = temp_desc->buffer.length;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ /* Package arguments may not be evaluated at this point */
+
+ status = acpi_ds_get_package_arguments(temp_desc);
+ value = temp_desc->package.count;
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Operand must be Buffer/Integer/String/Package - found type %s",
+ acpi_ut_get_type_name(type)));
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * Now that we have the size of the object, create a result
+ * object to hold the value
+ */
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ return_desc->integer.value = value;
+ break;
+
+ case AML_REF_OF_OP: /* ref_of (source_object) */
+
+ status =
+ acpi_ex_get_object_reference(operand[0], &return_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+ break;
+
+ case AML_DEREF_OF_OP: /* deref_of (obj_reference | String) */
+
+ /* Check for a method local or argument, or standalone String */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
+ ACPI_DESC_TYPE_NAMED) {
+ temp_desc =
+ acpi_ns_get_attached_object((struct
+ acpi_namespace_node *)
+ operand[0]);
+ if (temp_desc
+ &&
+ ((ACPI_GET_OBJECT_TYPE(temp_desc) ==
+ ACPI_TYPE_STRING)
+ || (ACPI_GET_OBJECT_TYPE(temp_desc) ==
+ ACPI_TYPE_LOCAL_REFERENCE))) {
+ operand[0] = temp_desc;
+ acpi_ut_add_reference(temp_desc);
+ } else {
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+ } else {
+ switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ /*
+ * This is a deref_of (local_x | arg_x)
+ *
+ * Must resolve/dereference the local/arg reference first
+ */
+ switch (operand[0]->reference.class) {
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
+
+ /* Set Operand[0] to the value of the local/arg */
+
+ status =
+ acpi_ds_method_data_get_value
+ (operand[0]->reference.class,
+ operand[0]->reference.value,
+ walk_state, &temp_desc);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /*
+ * Delete our reference to the input object and
+ * point to the object just retrieved
+ */
+ acpi_ut_remove_reference(operand[0]);
+ operand[0] = temp_desc;
+ break;
+
+ case ACPI_REFCLASS_REFOF:
+
+ /* Get the object to which the reference refers */
+
+ temp_desc =
+ operand[0]->reference.object;
+ acpi_ut_remove_reference(operand[0]);
+ operand[0] = temp_desc;
+ break;
+
+ default:
+
+ /* Must be an Index op - handled below */
+ break;
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+ break;
+
+ default:
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
+ ACPI_DESC_TYPE_NAMED) {
+ if (ACPI_GET_OBJECT_TYPE(operand[0]) ==
+ ACPI_TYPE_STRING) {
+ /*
+ * This is a deref_of (String). The string is a reference
+ * to a named ACPI object.
+ *
+ * 1) Find the owning Node
+ * 2) Dereference the node to an actual object. Could be a
+ * Field, so we need to resolve the node to a value.
+ */
+ status =
+ acpi_ns_get_node(walk_state->scope_info->
+ scope.node,
+ operand[0]->string.pointer,
+ ACPI_NS_SEARCH_PARENT,
+ ACPI_CAST_INDIRECT_PTR
+ (struct
+ acpi_namespace_node,
+ &return_desc));
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ status =
+ acpi_ex_resolve_node_to_value
+ (ACPI_CAST_INDIRECT_PTR
+ (struct acpi_namespace_node, &return_desc),
+ walk_state);
+ goto cleanup;
+ }
+ }
+
+ /* Operand[0] may have changed from the code above */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
+ ACPI_DESC_TYPE_NAMED) {
+ /*
+ * This is a deref_of (object_reference)
+ * Get the actual object from the Node (This is the dereference).
+ * This case may only happen when a local_x or arg_x is
+ * dereferenced above.
+ */
+ return_desc = acpi_ns_get_attached_object((struct
+ acpi_namespace_node
+ *)
+ operand[0]);
+ acpi_ut_add_reference(return_desc);
+ } else {
+ /*
+ * This must be a reference object produced by either the
+ * Index() or ref_of() operator
+ */
+ switch (operand[0]->reference.class) {
+ case ACPI_REFCLASS_INDEX:
+
+ /*
+ * The target type for the Index operator must be
+ * either a Buffer or a Package
+ */
+ switch (operand[0]->reference.target_type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ temp_desc =
+ operand[0]->reference.object;
+
+ /*
+ * Create a new object that contains one element of the
+ * buffer -- the element pointed to by the index.
+ *
+ * NOTE: index into a buffer is NOT a pointer to a
+ * sub-buffer of the main buffer, it is only a pointer to a
+ * single element (byte) of the buffer!
+ */
+ return_desc =
+ acpi_ut_create_internal_object
+ (ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Since we are returning the value of the buffer at the
+ * indexed location, we don't need to add an additional
+ * reference to the buffer itself.
+ */
+ return_desc->integer.value =
+ temp_desc->buffer.
+ pointer[operand[0]->reference.
+ value];
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ /*
+ * Return the referenced element of the package. We must
+ * add another reference to the referenced object, however.
+ */
+ return_desc =
+ *(operand[0]->reference.where);
+ if (return_desc) {
+ acpi_ut_add_reference
+ (return_desc);
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown Index TargetType %X in reference object %p",
+ operand[0]->reference.
+ target_type, operand[0]));
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+ break;
+
+ case ACPI_REFCLASS_REFOF:
+
+ return_desc = operand[0]->reference.object;
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) ==
+ ACPI_DESC_TYPE_NAMED) {
+ return_desc =
+ acpi_ns_get_attached_object((struct
+ acpi_namespace_node
+ *)
+ return_desc);
+ }
+
+ /* Add another reference to the object! */
+
+ acpi_ut_add_reference(return_desc);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Unknown class in reference(%p) - %2.2X",
+ operand[0],
+ operand[0]->reference.class));
+
+ status = AE_TYPE;
+ goto cleanup;
+ }
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
+ }
+
+ /* Save return object on success */
+
+ else {
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: exoparg2 - AML execution - opcodes with 2 arguments
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acinterp.h>
+#include <acpi/acevents.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exoparg2")
+
+/*!
+ * Naming convention for AML interpreter execution routines.
+ *
+ * The routines that begin execution of AML opcodes are named with a common
+ * convention based upon the number of arguments, the number of target operands,
+ * and whether or not a value is returned:
+ *
+ * AcpiExOpcode_xA_yT_zR
+ *
+ * Where:
+ *
+ * xA - ARGUMENTS: The number of arguments (input operands) that are
+ * required for this opcode type (1 through 6 args).
+ * yT - TARGETS: The number of targets (output operands) that are required
+ * for this opcode type (0, 1, or 2 targets).
+ * zR - RETURN VALUE: Indicates whether this opcode type returns a value
+ * as the function return (0 or 1).
+ *
+ * The AcpiExOpcode* functions are called via the Dispatcher component with
+ * fully resolved operands.
+!*/
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_2A_0T_0R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with two arguments, no target, and no return
+ * value.
+ *
+ * ALLOCATION: Deletes both operands
+ *
+ ******************************************************************************/
+acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ struct acpi_namespace_node *node;
+ u32 value;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Examine the opcode */
+
+ switch (walk_state->opcode) {
+ case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */
+
+ /* The first operand is a namespace node */
+
+ node = (struct acpi_namespace_node *)operand[0];
+
+ /* Second value is the notify value */
+
+ value = (u32) operand[1]->integer.value;
+
+ /* Are notifies allowed on this object? */
+
+ if (!acpi_ev_is_notify_object(node)) {
+ ACPI_ERROR((AE_INFO,
+ "Unexpected notify object type [%s]",
+ acpi_ut_get_type_name(node->type)));
+
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+#ifdef ACPI_GPE_NOTIFY_CHECK
+ /*
+ * GPE method wake/notify check. Here, we want to ensure that we
+ * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx
+ * GPE method during system runtime. If we do, the GPE is marked
+ * as "wake-only" and disabled.
+ *
+ * 1) Is the Notify() value == device_wake?
+ * 2) Is this a GPE deferred method? (An _Lxx or _Exx method)
+ * 3) Did the original GPE happen at system runtime?
+ * (versus during wake)
+ *
+ * If all three cases are true, this is a wake-only GPE that should
+ * be disabled at runtime.
+ */
+ if (value == 2) { /* device_wake */
+ status =
+ acpi_ev_check_for_wake_only_gpe(walk_state->
+ gpe_event_info);
+ if (ACPI_FAILURE(status)) {
+
+ /* AE_WAKE_ONLY_GPE only error, means ignore this notify */
+
+ return_ACPI_STATUS(AE_OK)
+ }
+ }
+#endif
+
+ /*
+ * Dispatch the notify to the appropriate handler
+ * NOTE: the request is queued for execution after this method
+ * completes. The notify handlers are NOT invoked synchronously
+ * from this thread -- because handlers may in turn run other
+ * control methods.
+ */
+ status = acpi_ev_queue_notify_request(node, value);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_2A_2T_1R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
+ * and one implicit return value.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc1 = NULL;
+ union acpi_operand_object *return_desc2 = NULL;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Execute the opcode */
+
+ switch (walk_state->opcode) {
+ case AML_DIVIDE_OP:
+
+ /* Divide (Dividend, Divisor, remainder_result quotient_result) */
+
+ return_desc1 =
+ acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc1) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ return_desc2 =
+ acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc2) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Quotient to return_desc1, remainder to return_desc2 */
+
+ status = acpi_ut_divide(operand[0]->integer.value,
+ operand[1]->integer.value,
+ &return_desc1->integer.value,
+ &return_desc2->integer.value);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ /* Store the results to the target reference operands */
+
+ status = acpi_ex_store(return_desc2, operand[2], walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ status = acpi_ex_store(return_desc1, operand[3], walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ cleanup:
+ /*
+ * Since the remainder is not returned indirectly, remove a reference to
+ * it. Only the quotient is returned indirectly.
+ */
+ acpi_ut_remove_reference(return_desc2);
+
+ if (ACPI_FAILURE(status)) {
+
+ /* Delete the return object */
+
+ acpi_ut_remove_reference(return_desc1);
+ }
+
+ /* Save return object (the remainder) on success */
+
+ else {
+ walk_state->result_obj = return_desc1;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_2A_1T_1R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with two arguments, one target, and a return
+ * value.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc = NULL;
+ acpi_integer index;
+ acpi_status status = AE_OK;
+ acpi_size length;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Execute the opcode */
+
+ if (walk_state->op_info->flags & AML_MATH) {
+
+ /* All simple math opcodes (add, etc.) */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ return_desc->integer.value =
+ acpi_ex_do_math_op(walk_state->opcode,
+ operand[0]->integer.value,
+ operand[1]->integer.value);
+ goto store_result_to_target;
+ }
+
+ switch (walk_state->opcode) {
+ case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* return_desc will contain the remainder */
+
+ status = acpi_ut_divide(operand[0]->integer.value,
+ operand[1]->integer.value,
+ NULL, &return_desc->integer.value);
+ break;
+
+ case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
+
+ status = acpi_ex_do_concatenate(operand[0], operand[1],
+ &return_desc, walk_state);
+ break;
+
+ case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */
+
+ /*
+ * Input object is guaranteed to be a buffer at this point (it may have
+ * been converted.) Copy the raw buffer data to a new object of
+ * type String.
+ */
+
+ /*
+ * Get the length of the new string. It is the smallest of:
+ * 1) Length of the input buffer
+ * 2) Max length as specified in the to_string operator
+ * 3) Length of input buffer up to a zero byte (null terminator)
+ *
+ * NOTE: A length of zero is ok, and will create a zero-length, null
+ * terminated string.
+ */
+ length = 0;
+ while ((length < operand[0]->buffer.length) &&
+ (length < operand[1]->integer.value) &&
+ (operand[0]->buffer.pointer[length])) {
+ length++;
+ }
+
+ /* Allocate a new string object */
+
+ return_desc = acpi_ut_create_string_object(length);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /*
+ * Copy the raw buffer data with no transform.
+ * (NULL terminated already)
+ */
+ ACPI_MEMCPY(return_desc->string.pointer,
+ operand[0]->buffer.pointer, length);
+ break;
+
+ case AML_CONCAT_RES_OP:
+
+ /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */
+
+ status = acpi_ex_concat_template(operand[0], operand[1],
+ &return_desc, walk_state);
+ break;
+
+ case AML_INDEX_OP: /* Index (Source Index Result) */
+
+ /* Create the internal return object */
+
+ return_desc =
+ acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Initialize the Index reference object */
+
+ index = operand[1]->integer.value;
+ return_desc->reference.value = (u32) index;
+ return_desc->reference.class = ACPI_REFCLASS_INDEX;
+
+ /*
+ * At this point, the Source operand is a String, Buffer, or Package.
+ * Verify that the index is within range.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
+ case ACPI_TYPE_STRING:
+
+ if (index >= operand[0]->string.length) {
+ status = AE_AML_STRING_LIMIT;
+ }
+
+ return_desc->reference.target_type =
+ ACPI_TYPE_BUFFER_FIELD;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ if (index >= operand[0]->buffer.length) {
+ status = AE_AML_BUFFER_LIMIT;
+ }
+
+ return_desc->reference.target_type =
+ ACPI_TYPE_BUFFER_FIELD;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ if (index >= operand[0]->package.count) {
+ status = AE_AML_PACKAGE_LIMIT;
+ }
+
+ return_desc->reference.target_type = ACPI_TYPE_PACKAGE;
+ return_desc->reference.where =
+ &operand[0]->package.elements[index];
+ break;
+
+ default:
+
+ status = AE_AML_INTERNAL;
+ goto cleanup;
+ }
+
+ /* Failure means that the Index was beyond the end of the object */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Index (%X%8.8X) is beyond end of object",
+ ACPI_FORMAT_UINT64(index)));
+ goto cleanup;
+ }
+
+ /*
+ * Save the target object and add a reference to it for the life
+ * of the index
+ */
+ return_desc->reference.object = operand[0];
+ acpi_ut_add_reference(operand[0]);
+
+ /* Store the reference to the Target */
+
+ status = acpi_ex_store(return_desc, operand[2], walk_state);
+
+ /* Return the reference */
+
+ walk_state->result_obj = return_desc;
+ goto cleanup;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ break;
+ }
+
+ store_result_to_target:
+
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * Store the result of the operation (which is now in return_desc) into
+ * the Target descriptor.
+ */
+ status = acpi_ex_store(return_desc, operand[2], walk_state);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ if (!walk_state->result_obj) {
+ walk_state->result_obj = return_desc;
+ }
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
+ walk_state->result_obj = NULL;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_2A_0T_1R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc = NULL;
+ acpi_status status = AE_OK;
+ u8 logical_result = FALSE;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ /* Create the internal return object */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Execute the Opcode */
+
+ if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) {
+
+ /* logical_op (Operand0, Operand1) */
+
+ status = acpi_ex_do_logical_numeric_op(walk_state->opcode,
+ operand[0]->integer.
+ value,
+ operand[1]->integer.
+ value, &logical_result);
+ goto store_logical_result;
+ } else if (walk_state->op_info->flags & AML_LOGICAL) {
+
+ /* logical_op (Operand0, Operand1) */
+
+ status = acpi_ex_do_logical_op(walk_state->opcode, operand[0],
+ operand[1], &logical_result);
+ goto store_logical_result;
+ }
+
+ switch (walk_state->opcode) {
+ case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */
+
+ status =
+ acpi_ex_acquire_mutex(operand[1], operand[0], walk_state);
+ if (status == AE_TIME) {
+ logical_result = TRUE; /* TRUE = Acquire timed out */
+ status = AE_OK;
+ }
+ break;
+
+ case AML_WAIT_OP: /* Wait (event_object, Timeout) */
+
+ status = acpi_ex_system_wait_event(operand[1], operand[0]);
+ if (status == AE_TIME) {
+ logical_result = TRUE; /* TRUE, Wait timed out */
+ status = AE_OK;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ store_logical_result:
+ /*
+ * Set return value to according to logical_result. logical TRUE (all ones)
+ * Default is FALSE (zero)
+ */
+ if (logical_result) {
+ return_desc->integer.value = ACPI_INTEGER_MAX;
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
+ }
+
+ /* Save return object on success */
+
+ else {
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exoparg3 - AML execution - opcodes with 3 arguments
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exoparg3")
+
+/*!
+ * Naming convention for AML interpreter execution routines.
+ *
+ * The routines that begin execution of AML opcodes are named with a common
+ * convention based upon the number of arguments, the number of target operands,
+ * and whether or not a value is returned:
+ *
+ * AcpiExOpcode_xA_yT_zR
+ *
+ * Where:
+ *
+ * xA - ARGUMENTS: The number of arguments (input operands) that are
+ * required for this opcode type (1 through 6 args).
+ * yT - TARGETS: The number of targets (output operands) that are required
+ * for this opcode type (0, 1, or 2 targets).
+ * zR - RETURN VALUE: Indicates whether this opcode type returns a value
+ * as the function return (0 or 1).
+ *
+ * The AcpiExOpcode* functions are called via the Dispatcher component with
+ * fully resolved operands.
+!*/
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_3A_0T_0R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute Triadic operator (3 operands)
+ *
+ ******************************************************************************/
+acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ struct acpi_signal_fatal_info *fatal;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ switch (walk_state->opcode) {
+ case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
+ (u32) operand[0]->integer.value,
+ (u32) operand[1]->integer.value,
+ (u32) operand[2]->integer.value));
+
+ fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
+ if (fatal) {
+ fatal->type = (u32) operand[0]->integer.value;
+ fatal->code = (u32) operand[1]->integer.value;
+ fatal->argument = (u32) operand[2]->integer.value;
+ }
+
+ /* Always signal the OS! */
+
+ status = acpi_os_signal(ACPI_SIGNAL_FATAL, fatal);
+
+ /* Might return while OS is shutting down, just continue */
+
+ ACPI_FREE(fatal);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ cleanup:
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_3A_1T_1R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute Triadic operator (3 operands)
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc = NULL;
+ char *buffer = NULL;
+ acpi_status status = AE_OK;
+ acpi_integer index;
+ acpi_size length;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ switch (walk_state->opcode) {
+ case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */
+
+ /*
+ * Create the return object. The Source operand is guaranteed to be
+ * either a String or a Buffer, so just use its type.
+ */
+ return_desc =
+ acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE
+ (operand[0]));
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Get the Integer values from the objects */
+
+ index = operand[1]->integer.value;
+ length = (acpi_size) operand[2]->integer.value;
+
+ /*
+ * If the index is beyond the length of the String/Buffer, or if the
+ * requested length is zero, return a zero-length String/Buffer
+ */
+ if (index >= operand[0]->string.length) {
+ length = 0;
+ }
+
+ /* Truncate request if larger than the actual String/Buffer */
+
+ else if ((index + length) > operand[0]->string.length) {
+ length = (acpi_size) operand[0]->string.length -
+ (acpi_size) index;
+ }
+
+ /* Strings always have a sub-pointer, not so for buffers */
+
+ switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
+ case ACPI_TYPE_STRING:
+
+ /* Always allocate a new buffer for the String */
+
+ buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1);
+ if (!buffer) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ /* If the requested length is zero, don't allocate a buffer */
+
+ if (length > 0) {
+
+ /* Allocate a new buffer for the Buffer */
+
+ buffer = ACPI_ALLOCATE_ZEROED(length);
+ if (!buffer) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+ }
+ break;
+
+ default: /* Should not happen */
+
+ status = AE_AML_OPERAND_TYPE;
+ goto cleanup;
+ }
+
+ if (buffer) {
+
+ /* We have a buffer, copy the portion requested */
+
+ ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
+ length);
+ }
+
+ /* Set the length of the new String/Buffer */
+
+ return_desc->string.pointer = buffer;
+ return_desc->string.length = (u32) length;
+
+ /* Mark buffer initialized */
+
+ return_desc->buffer.flags |= AOPOBJ_DATA_VALID;
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ /* Store the result in the target */
+
+ status = acpi_ex_store(return_desc, operand[3], walk_state);
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if (ACPI_FAILURE(status) || walk_state->result_obj) {
+ acpi_ut_remove_reference(return_desc);
+ walk_state->result_obj = NULL;
+ }
+
+ /* Set the return object and exit */
+
+ else {
+ walk_state->result_obj = return_desc;
+ }
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exoparg6 - AML execution - opcodes with 6 arguments
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exoparg6")
+
+/*!
+ * Naming convention for AML interpreter execution routines.
+ *
+ * The routines that begin execution of AML opcodes are named with a common
+ * convention based upon the number of arguments, the number of target operands,
+ * and whether or not a value is returned:
+ *
+ * AcpiExOpcode_xA_yT_zR
+ *
+ * Where:
+ *
+ * xA - ARGUMENTS: The number of arguments (input operands) that are
+ * required for this opcode type (1 through 6 args).
+ * yT - TARGETS: The number of targets (output operands) that are required
+ * for this opcode type (0, 1, or 2 targets).
+ * zR - RETURN VALUE: Indicates whether this opcode type returns a value
+ * as the function return (0 or 1).
+ *
+ * The AcpiExOpcode* functions are called via the Dispatcher component with
+ * fully resolved operands.
+!*/
+/* Local prototypes */
+static u8
+acpi_ex_do_match(u32 match_op,
+ union acpi_operand_object *package_obj,
+ union acpi_operand_object *match_obj);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_do_match
+ *
+ * PARAMETERS: match_op - The AML match operand
+ * package_obj - Object from the target package
+ * match_obj - Object to be matched
+ *
+ * RETURN: TRUE if the match is successful, FALSE otherwise
+ *
+ * DESCRIPTION: Implements the low-level match for the ASL Match operator.
+ * Package elements will be implicitly converted to the type of
+ * the match object (Integer/Buffer/String).
+ *
+ ******************************************************************************/
+
+static u8
+acpi_ex_do_match(u32 match_op,
+ union acpi_operand_object *package_obj,
+ union acpi_operand_object *match_obj)
+{
+ u8 logical_result = TRUE;
+ acpi_status status;
+
+ /*
+ * Note: Since the package_obj/match_obj ordering is opposite to that of
+ * the standard logical operators, we have to reverse them when we call
+ * do_logical_op in order to make the implicit conversion rules work
+ * correctly. However, this means we have to flip the entire equation
+ * also. A bit ugly perhaps, but overall, better than fussing the
+ * parameters around at runtime, over and over again.
+ *
+ * Below, P[i] refers to the package element, M refers to the Match object.
+ */
+ switch (match_op) {
+ case MATCH_MTR:
+
+ /* Always true */
+
+ break;
+
+ case MATCH_MEQ:
+
+ /*
+ * True if equal: (P[i] == M)
+ * Change to: (M == P[i])
+ */
+ status =
+ acpi_ex_do_logical_op(AML_LEQUAL_OP, match_obj, package_obj,
+ &logical_result);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+ break;
+
+ case MATCH_MLE:
+
+ /*
+ * True if less than or equal: (P[i] <= M) (P[i] not_greater than M)
+ * Change to: (M >= P[i]) (M not_less than P[i])
+ */
+ status =
+ acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj,
+ &logical_result);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+ logical_result = (u8) ! logical_result;
+ break;
+
+ case MATCH_MLT:
+
+ /*
+ * True if less than: (P[i] < M)
+ * Change to: (M > P[i])
+ */
+ status =
+ acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj,
+ package_obj, &logical_result);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+ break;
+
+ case MATCH_MGE:
+
+ /*
+ * True if greater than or equal: (P[i] >= M) (P[i] not_less than M)
+ * Change to: (M <= P[i]) (M not_greater than P[i])
+ */
+ status =
+ acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj,
+ package_obj, &logical_result);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+ logical_result = (u8) ! logical_result;
+ break;
+
+ case MATCH_MGT:
+
+ /*
+ * True if greater than: (P[i] > M)
+ * Change to: (M < P[i])
+ */
+ status =
+ acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj,
+ &logical_result);
+ if (ACPI_FAILURE(status)) {
+ return (FALSE);
+ }
+ break;
+
+ default:
+
+ /* Undefined */
+
+ return (FALSE);
+ }
+
+ return logical_result;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_opcode_6A_0T_1R
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
+{
+ union acpi_operand_object **operand = &walk_state->operands[0];
+ union acpi_operand_object *return_desc = NULL;
+ acpi_status status = AE_OK;
+ acpi_integer index;
+ union acpi_operand_object *this_element;
+
+ ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R,
+ acpi_ps_get_opcode_name(walk_state->opcode));
+
+ switch (walk_state->opcode) {
+ case AML_MATCH_OP:
+ /*
+ * Match (search_pkg[0], match_op1[1], match_obj1[2],
+ * match_op2[3], match_obj2[4], start_index[5])
+ */
+
+ /* Validate both Match Term Operators (MTR, MEQ, etc.) */
+
+ if ((operand[1]->integer.value > MAX_MATCH_OPERATOR) ||
+ (operand[3]->integer.value > MAX_MATCH_OPERATOR)) {
+ ACPI_ERROR((AE_INFO, "Match operator out of range"));
+ status = AE_AML_OPERAND_VALUE;
+ goto cleanup;
+ }
+
+ /* Get the package start_index, validate against the package length */
+
+ index = operand[5]->integer.value;
+ if (index >= operand[0]->package.count) {
+ ACPI_ERROR((AE_INFO,
+ "Index (%X%8.8X) beyond package end (%X)",
+ ACPI_FORMAT_UINT64(index),
+ operand[0]->package.count));
+ status = AE_AML_PACKAGE_LIMIT;
+ goto cleanup;
+ }
+
+ /* Create an integer for the return value */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+
+ }
+
+ /* Default return value if no match found */
+
+ return_desc->integer.value = ACPI_INTEGER_MAX;
+
+ /*
+ * Examine each element until a match is found. Both match conditions
+ * must be satisfied for a match to occur. Within the loop,
+ * "continue" signifies that the current element does not match
+ * and the next should be examined.
+ *
+ * Upon finding a match, the loop will terminate via "break" at
+ * the bottom. If it terminates "normally", match_value will be
+ * ACPI_INTEGER_MAX (Ones) (its initial value) indicating that no
+ * match was found.
+ */
+ for (; index < operand[0]->package.count; index++) {
+
+ /* Get the current package element */
+
+ this_element = operand[0]->package.elements[index];
+
+ /* Treat any uninitialized (NULL) elements as non-matching */
+
+ if (!this_element) {
+ continue;
+ }
+
+ /*
+ * Both match conditions must be satisfied. Execution of a continue
+ * (proceed to next iteration of enclosing for loop) signifies a
+ * non-match.
+ */
+ if (!acpi_ex_do_match((u32) operand[1]->integer.value,
+ this_element, operand[2])) {
+ continue;
+ }
+
+ if (!acpi_ex_do_match((u32) operand[3]->integer.value,
+ this_element, operand[4])) {
+ continue;
+ }
+
+ /* Match found: Index is the return value */
+
+ return_desc->integer.value = index;
+ break;
+ }
+ break;
+
+ case AML_LOAD_TABLE_OP:
+
+ status = acpi_ex_load_table_op(walk_state, &return_desc);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
+ walk_state->opcode));
+ status = AE_AML_BAD_OPCODE;
+ goto cleanup;
+ }
+
+ cleanup:
+
+ /* Delete return object on error */
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(return_desc);
+ }
+
+ /* Save return object on success */
+
+ else {
+ walk_state->result_obj = return_desc;
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exprep - ACPI AML (p-code) execution - field prep utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exprep")
+
+/* Local prototypes */
+static u32
+acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
+ u8 field_flags, u32 * return_byte_alignment);
+
+#ifdef ACPI_UNDER_DEVELOPMENT
+
+static u32
+acpi_ex_generate_access(u32 field_bit_offset,
+ u32 field_bit_length, u32 region_length);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_generate_access
+ *
+ * PARAMETERS: field_bit_offset - Start of field within parent region/buffer
+ * field_bit_length - Length of field in bits
+ * region_length - Length of parent in bytes
+ *
+ * RETURN: Field granularity (8, 16, 32 or 64) and
+ * byte_alignment (1, 2, 3, or 4)
+ *
+ * DESCRIPTION: Generate an optimal access width for fields defined with the
+ * any_acc keyword.
+ *
+ * NOTE: Need to have the region_length in order to check for boundary
+ * conditions (end-of-region). However, the region_length is a deferred
+ * operation. Therefore, to complete this implementation, the generation
+ * of this access width must be deferred until the region length has
+ * been evaluated.
+ *
+ ******************************************************************************/
+
+static u32
+acpi_ex_generate_access(u32 field_bit_offset,
+ u32 field_bit_length, u32 region_length)
+{
+ u32 field_byte_length;
+ u32 field_byte_offset;
+ u32 field_byte_end_offset;
+ u32 access_byte_width;
+ u32 field_start_offset;
+ u32 field_end_offset;
+ u32 minimum_access_width = 0xFFFFFFFF;
+ u32 minimum_accesses = 0xFFFFFFFF;
+ u32 accesses;
+
+ ACPI_FUNCTION_TRACE(ex_generate_access);
+
+ /* Round Field start offset and length to "minimal" byte boundaries */
+
+ field_byte_offset = ACPI_DIV_8(ACPI_ROUND_DOWN(field_bit_offset, 8));
+ field_byte_end_offset = ACPI_DIV_8(ACPI_ROUND_UP(field_bit_length +
+ field_bit_offset, 8));
+ field_byte_length = field_byte_end_offset - field_byte_offset;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Bit length %d, Bit offset %d\n",
+ field_bit_length, field_bit_offset));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Byte Length %d, Byte Offset %d, End Offset %d\n",
+ field_byte_length, field_byte_offset,
+ field_byte_end_offset));
+
+ /*
+ * Iterative search for the maximum access width that is both aligned
+ * and does not go beyond the end of the region
+ *
+ * Start at byte_acc and work upwards to qword_acc max. (1,2,4,8 bytes)
+ */
+ for (access_byte_width = 1; access_byte_width <= 8;
+ access_byte_width <<= 1) {
+ /*
+ * 1) Round end offset up to next access boundary and make sure that
+ * this does not go beyond the end of the parent region.
+ * 2) When the Access width is greater than the field_byte_length, we
+ * are done. (This does not optimize for the perfectly aligned
+ * case yet).
+ */
+ if (ACPI_ROUND_UP(field_byte_end_offset, access_byte_width) <=
+ region_length) {
+ field_start_offset =
+ ACPI_ROUND_DOWN(field_byte_offset,
+ access_byte_width) /
+ access_byte_width;
+
+ field_end_offset =
+ ACPI_ROUND_UP((field_byte_length +
+ field_byte_offset),
+ access_byte_width) /
+ access_byte_width;
+
+ accesses = field_end_offset - field_start_offset;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "AccessWidth %d end is within region\n",
+ access_byte_width));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Field Start %d, Field End %d -- requires %d accesses\n",
+ field_start_offset, field_end_offset,
+ accesses));
+
+ /* Single access is optimal */
+
+ if (accesses <= 1) {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Entire field can be accessed with one operation of size %d\n",
+ access_byte_width));
+ return_VALUE(access_byte_width);
+ }
+
+ /*
+ * Fits in the region, but requires more than one read/write.
+ * try the next wider access on next iteration
+ */
+ if (accesses < minimum_accesses) {
+ minimum_accesses = accesses;
+ minimum_access_width = access_byte_width;
+ }
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "AccessWidth %d end is NOT within region\n",
+ access_byte_width));
+ if (access_byte_width == 1) {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Field goes beyond end-of-region!\n"));
+
+ /* Field does not fit in the region at all */
+
+ return_VALUE(0);
+ }
+
+ /*
+ * This width goes beyond the end-of-region, back off to
+ * previous access
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Backing off to previous optimal access width of %d\n",
+ minimum_access_width));
+ return_VALUE(minimum_access_width);
+ }
+ }
+
+ /*
+ * Could not read/write field with one operation,
+ * just use max access width
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Cannot access field in one operation, using width 8\n"));
+ return_VALUE(8);
+}
+#endif /* ACPI_UNDER_DEVELOPMENT */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_decode_field_access
+ *
+ * PARAMETERS: obj_desc - Field object
+ * field_flags - Encoded fieldflags (contains access bits)
+ * return_byte_alignment - Where the byte alignment is returned
+ *
+ * RETURN: Field granularity (8, 16, 32 or 64) and
+ * byte_alignment (1, 2, 3, or 4)
+ *
+ * DESCRIPTION: Decode the access_type bits of a field definition.
+ *
+ ******************************************************************************/
+
+static u32
+acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
+ u8 field_flags, u32 * return_byte_alignment)
+{
+ u32 access;
+ u32 byte_alignment;
+ u32 bit_length;
+
+ ACPI_FUNCTION_TRACE(ex_decode_field_access);
+
+ access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK);
+
+ switch (access) {
+ case AML_FIELD_ACCESS_ANY:
+
+#ifdef ACPI_UNDER_DEVELOPMENT
+ byte_alignment =
+ acpi_ex_generate_access(obj_desc->common_field.
+ start_field_bit_offset,
+ obj_desc->common_field.bit_length,
+ 0xFFFFFFFF
+ /* Temp until we pass region_length as parameter */
+ );
+ bit_length = byte_alignment * 8;
+#endif
+
+ byte_alignment = 1;
+ bit_length = 8;
+ break;
+
+ case AML_FIELD_ACCESS_BYTE:
+ case AML_FIELD_ACCESS_BUFFER: /* ACPI 2.0 (SMBus Buffer) */
+ byte_alignment = 1;
+ bit_length = 8;
+ break;
+
+ case AML_FIELD_ACCESS_WORD:
+ byte_alignment = 2;
+ bit_length = 16;
+ break;
+
+ case AML_FIELD_ACCESS_DWORD:
+ byte_alignment = 4;
+ bit_length = 32;
+ break;
+
+ case AML_FIELD_ACCESS_QWORD: /* ACPI 2.0 */
+ byte_alignment = 8;
+ bit_length = 64;
+ break;
+
+ default:
+ /* Invalid field access type */
+
+ ACPI_ERROR((AE_INFO, "Unknown field access type %X", access));
+ return_UINT32(0);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
+ /*
+ * buffer_field access can be on any byte boundary, so the
+ * byte_alignment is always 1 byte -- regardless of any byte_alignment
+ * implied by the field access type.
+ */
+ byte_alignment = 1;
+ }
+
+ *return_byte_alignment = byte_alignment;
+ return_UINT32(bit_length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_prep_common_field_object
+ *
+ * PARAMETERS: obj_desc - The field object
+ * field_flags - Access, lock_rule, and update_rule.
+ * The format of a field_flag is described
+ * in the ACPI specification
+ * field_attribute - Special attributes (not used)
+ * field_bit_position - Field start position
+ * field_bit_length - Field length in number of bits
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize the areas of the field object that are common
+ * to the various types of fields. Note: This is very "sensitive"
+ * code because we are solving the general case for field
+ * alignment.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
+ u8 field_flags,
+ u8 field_attribute,
+ u32 field_bit_position, u32 field_bit_length)
+{
+ u32 access_bit_width;
+ u32 byte_alignment;
+ u32 nearest_byte_address;
+
+ ACPI_FUNCTION_TRACE(ex_prep_common_field_object);
+
+ /*
+ * Note: the structure being initialized is the
+ * ACPI_COMMON_FIELD_INFO; No structure fields outside of the common
+ * area are initialized by this procedure.
+ */
+ obj_desc->common_field.field_flags = field_flags;
+ obj_desc->common_field.attribute = field_attribute;
+ obj_desc->common_field.bit_length = field_bit_length;
+
+ /*
+ * Decode the access type so we can compute offsets. The access type gives
+ * two pieces of information - the width of each field access and the
+ * necessary byte_alignment (address granularity) of the access.
+ *
+ * For any_acc, the access_bit_width is the largest width that is both
+ * necessary and possible in an attempt to access the whole field in one
+ * I/O operation. However, for any_acc, the byte_alignment is always one
+ * byte.
+ *
+ * For all Buffer Fields, the byte_alignment is always one byte.
+ *
+ * For all other access types (Byte, Word, Dword, Qword), the Bitwidth is
+ * the same (equivalent) as the byte_alignment.
+ */
+ access_bit_width = acpi_ex_decode_field_access(obj_desc, field_flags,
+ &byte_alignment);
+ if (!access_bit_width) {
+ return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
+ }
+
+ /* Setup width (access granularity) fields */
+
+ obj_desc->common_field.access_byte_width = (u8)
+ ACPI_DIV_8(access_bit_width); /* 1, 2, 4, 8 */
+
+ obj_desc->common_field.access_bit_width = (u8) access_bit_width;
+
+ /*
+ * base_byte_offset is the address of the start of the field within the
+ * region. It is the byte address of the first *datum* (field-width data
+ * unit) of the field. (i.e., the first datum that contains at least the
+ * first *bit* of the field.)
+ *
+ * Note: byte_alignment is always either equal to the access_bit_width or 8
+ * (Byte access), and it defines the addressing granularity of the parent
+ * region or buffer.
+ */
+ nearest_byte_address =
+ ACPI_ROUND_BITS_DOWN_TO_BYTES(field_bit_position);
+ obj_desc->common_field.base_byte_offset = (u32)
+ ACPI_ROUND_DOWN(nearest_byte_address, byte_alignment);
+
+ /*
+ * start_field_bit_offset is the offset of the first bit of the field within
+ * a field datum.
+ */
+ obj_desc->common_field.start_field_bit_offset = (u8)
+ (field_bit_position -
+ ACPI_MUL_8(obj_desc->common_field.base_byte_offset));
+
+ /*
+ * Does the entire field fit within a single field access element? (datum)
+ * (i.e., without crossing a datum boundary)
+ */
+ if ((obj_desc->common_field.start_field_bit_offset +
+ field_bit_length) <= (u16) access_bit_width) {
+ obj_desc->common.flags |= AOPOBJ_SINGLE_DATUM;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_prep_field_value
+ *
+ * PARAMETERS: Info - Contains all field creation info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Construct an union acpi_operand_object of type def_field and
+ * connect it to the parent Node.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *second_desc = NULL;
+ u32 type;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_prep_field_value);
+
+ /* Parameter validation */
+
+ if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) {
+ if (!info->region_node) {
+ ACPI_ERROR((AE_INFO, "Null RegionNode"));
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ type = acpi_ns_get_type(info->region_node);
+ if (type != ACPI_TYPE_REGION) {
+ ACPI_ERROR((AE_INFO,
+ "Needed Region, found type %X (%s)",
+ type, acpi_ut_get_type_name(type)));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ }
+
+ /* Allocate a new field object */
+
+ obj_desc = acpi_ut_create_internal_object(info->field_type);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Initialize areas of the object that are common to all fields */
+
+ obj_desc->common_field.node = info->field_node;
+ status = acpi_ex_prep_common_field_object(obj_desc, info->field_flags,
+ info->attribute,
+ info->field_bit_position,
+ info->field_bit_length);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_delete_object_desc(obj_desc);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Initialize areas of the object that are specific to the field type */
+
+ switch (info->field_type) {
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+
+ obj_desc->field.region_obj =
+ acpi_ns_get_attached_object(info->region_node);
+
+ /* An additional reference for the container */
+
+ acpi_ut_add_reference(obj_desc->field.region_obj);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n",
+ obj_desc->field.start_field_bit_offset,
+ obj_desc->field.base_byte_offset,
+ obj_desc->field.access_byte_width,
+ obj_desc->field.region_obj));
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ obj_desc->bank_field.value = info->bank_value;
+ obj_desc->bank_field.region_obj =
+ acpi_ns_get_attached_object(info->region_node);
+ obj_desc->bank_field.bank_obj =
+ acpi_ns_get_attached_object(info->register_node);
+
+ /* An additional reference for the attached objects */
+
+ acpi_ut_add_reference(obj_desc->bank_field.region_obj);
+ acpi_ut_add_reference(obj_desc->bank_field.bank_obj);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n",
+ obj_desc->bank_field.start_field_bit_offset,
+ obj_desc->bank_field.base_byte_offset,
+ obj_desc->field.access_byte_width,
+ obj_desc->bank_field.region_obj,
+ obj_desc->bank_field.bank_obj));
+
+ /*
+ * Remember location in AML stream of the field unit
+ * opcode and operands -- since the bank_value
+ * operands must be evaluated.
+ */
+ second_desc = obj_desc->common.next_object;
+ second_desc->extra.aml_start =
+ ACPI_CAST_PTR(union acpi_parse_object,
+ info->data_register_node)->named.data;
+ second_desc->extra.aml_length =
+ ACPI_CAST_PTR(union acpi_parse_object,
+ info->data_register_node)->named.length;
+
+ break;
+
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ /* Get the Index and Data registers */
+
+ obj_desc->index_field.index_obj =
+ acpi_ns_get_attached_object(info->register_node);
+ obj_desc->index_field.data_obj =
+ acpi_ns_get_attached_object(info->data_register_node);
+
+ if (!obj_desc->index_field.data_obj
+ || !obj_desc->index_field.index_obj) {
+ ACPI_ERROR((AE_INFO,
+ "Null Index Object during field prep"));
+ acpi_ut_delete_object_desc(obj_desc);
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /* An additional reference for the attached objects */
+
+ acpi_ut_add_reference(obj_desc->index_field.data_obj);
+ acpi_ut_add_reference(obj_desc->index_field.index_obj);
+
+ /*
+ * April 2006: Changed to match MS behavior
+ *
+ * The value written to the Index register is the byte offset of the
+ * target field in units of the granularity of the index_field
+ *
+ * Previously, the value was calculated as an index in terms of the
+ * width of the Data register, as below:
+ *
+ * obj_desc->index_field.Value = (u32)
+ * (Info->field_bit_position / ACPI_MUL_8 (
+ * obj_desc->Field.access_byte_width));
+ *
+ * February 2006: Tried value as a byte offset:
+ * obj_desc->index_field.Value = (u32)
+ * ACPI_DIV_8 (Info->field_bit_position);
+ */
+ obj_desc->index_field.value =
+ (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position),
+ obj_desc->index_field.
+ access_byte_width);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n",
+ obj_desc->index_field.start_field_bit_offset,
+ obj_desc->index_field.base_byte_offset,
+ obj_desc->index_field.value,
+ obj_desc->field.access_byte_width,
+ obj_desc->index_field.index_obj,
+ obj_desc->index_field.data_obj));
+ break;
+
+ default:
+ /* No other types should get here */
+ break;
+ }
+
+ /*
+ * Store the constructed descriptor (obj_desc) into the parent Node,
+ * preserving the current type of that named_obj.
+ */
+ status = acpi_ns_attach_object(info->field_node, obj_desc,
+ acpi_ns_get_type(info->field_node));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Set NamedObj %p [%4.4s], ObjDesc %p\n",
+ info->field_node,
+ acpi_ut_get_node_name(info->field_node), obj_desc));
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exregion - ACPI default op_region (address space) handlers
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exregion")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_memory_space_handler
+ *
+ * PARAMETERS: Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, or 32)
+ * Value - Pointer to in or out value
+ * handler_context - Pointer to Handler's context
+ * region_context - Pointer to context specific to the
+ * accessed region
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handler for the System Memory address space (Op Region)
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ex_system_memory_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status = AE_OK;
+ void *logical_addr_ptr = NULL;
+ struct acpi_mem_space_context *mem_info = region_context;
+ u32 length;
+ acpi_size window_size;
+#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
+ u32 remainder;
+#endif
+
+ ACPI_FUNCTION_TRACE(ex_system_memory_space_handler);
+
+ /* Validate and translate the bit width */
+
+ switch (bit_width) {
+ case 8:
+ length = 1;
+ break;
+
+ case 16:
+ length = 2;
+ break;
+
+ case 32:
+ length = 4;
+ break;
+
+ case 64:
+ length = 8;
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d",
+ bit_width));
+ return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
+ }
+
+#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
+ /*
+ * Hardware does not support non-aligned data transfers, we must verify
+ * the request.
+ */
+ (void)acpi_ut_short_divide((acpi_integer) address, length, NULL,
+ &remainder);
+ if (remainder != 0) {
+ return_ACPI_STATUS(AE_AML_ALIGNMENT);
+ }
+#endif
+
+ /*
+ * Does the request fit into the cached memory mapping?
+ * Is 1) Address below the current mapping? OR
+ * 2) Address beyond the current mapping?
+ */
+ if ((address < mem_info->mapped_physical_address) ||
+ (((acpi_integer) address + length) > ((acpi_integer)
+ mem_info->
+ mapped_physical_address +
+ mem_info->mapped_length))) {
+ /*
+ * The request cannot be resolved by the current memory mapping;
+ * Delete the existing mapping and create a new one.
+ */
+ if (mem_info->mapped_length) {
+
+ /* Valid mapping, delete it */
+
+ acpi_os_unmap_memory(mem_info->mapped_logical_address,
+ mem_info->mapped_length);
+ }
+
+ /*
+ * Don't attempt to map memory beyond the end of the region, and
+ * constrain the maximum mapping size to something reasonable.
+ */
+ window_size = (acpi_size)
+ ((mem_info->address + mem_info->length) - address);
+
+ if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) {
+ window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE;
+ }
+
+ /* Create a new mapping starting at the address given */
+
+ mem_info->mapped_logical_address =
+ acpi_os_map_memory((acpi_physical_address) address, window_size);
+ if (!mem_info->mapped_logical_address) {
+ ACPI_ERROR((AE_INFO,
+ "Could not map memory at %8.8X%8.8X, size %X",
+ ACPI_FORMAT_NATIVE_UINT(address),
+ (u32) window_size));
+ mem_info->mapped_length = 0;
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Save the physical address and mapping size */
+
+ mem_info->mapped_physical_address = address;
+ mem_info->mapped_length = window_size;
+ }
+
+ /*
+ * Generate a logical pointer corresponding to the address we want to
+ * access
+ */
+ logical_addr_ptr = mem_info->mapped_logical_address +
+ ((acpi_integer) address -
+ (acpi_integer) mem_info->mapped_physical_address);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n",
+ bit_width, function,
+ ACPI_FORMAT_NATIVE_UINT(address)));
+
+ /*
+ * Perform the memory read or write
+ *
+ * Note: For machines that do not support non-aligned transfers, the target
+ * address was checked for alignment above. We do not attempt to break the
+ * transfer up into smaller (byte-size) chunks because the AML specifically
+ * asked for a transfer width that the hardware may require.
+ */
+ switch (function) {
+ case ACPI_READ:
+
+ *value = 0;
+ switch (bit_width) {
+ case 8:
+ *value = (acpi_integer) ACPI_GET8(logical_addr_ptr);
+ break;
+
+ case 16:
+ *value = (acpi_integer) ACPI_GET16(logical_addr_ptr);
+ break;
+
+ case 32:
+ *value = (acpi_integer) ACPI_GET32(logical_addr_ptr);
+ break;
+
+ case 64:
+ *value = (acpi_integer) ACPI_GET64(logical_addr_ptr);
+ break;
+
+ default:
+ /* bit_width was already validated */
+ break;
+ }
+ break;
+
+ case ACPI_WRITE:
+
+ switch (bit_width) {
+ case 8:
+ ACPI_SET8(logical_addr_ptr) = (u8) * value;
+ break;
+
+ case 16:
+ ACPI_SET16(logical_addr_ptr) = (u16) * value;
+ break;
+
+ case 32:
+ ACPI_SET32(logical_addr_ptr) = (u32) * value;
+ break;
+
+ case 64:
+ ACPI_SET64(logical_addr_ptr) = (u64) * value;
+ break;
+
+ default:
+ /* bit_width was already validated */
+ break;
+ }
+ break;
+
+ default:
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_io_space_handler
+ *
+ * PARAMETERS: Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, or 32)
+ * Value - Pointer to in or out value
+ * handler_context - Pointer to Handler's context
+ * region_context - Pointer to context specific to the
+ * accessed region
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handler for the System IO address space (Op Region)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_system_io_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status = AE_OK;
+ u32 value32;
+
+ ACPI_FUNCTION_TRACE(ex_system_io_space_handler);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n",
+ bit_width, function,
+ ACPI_FORMAT_NATIVE_UINT(address)));
+
+ /* Decode the function parameter */
+
+ switch (function) {
+ case ACPI_READ:
+
+ status = acpi_os_read_port((acpi_io_address) address,
+ &value32, bit_width);
+ *value = value32;
+ break;
+
+ case ACPI_WRITE:
+
+ status = acpi_os_write_port((acpi_io_address) address,
+ (u32) * value, bit_width);
+ break;
+
+ default:
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_pci_config_space_handler
+ *
+ * PARAMETERS: Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, or 32)
+ * Value - Pointer to in or out value
+ * handler_context - Pointer to Handler's context
+ * region_context - Pointer to context specific to the
+ * accessed region
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handler for the PCI Config address space (Op Region)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_pci_config_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status = AE_OK;
+ struct acpi_pci_id *pci_id;
+ u16 pci_register;
+ u32 value32;
+
+ ACPI_FUNCTION_TRACE(ex_pci_config_space_handler);
+
+ /*
+ * The arguments to acpi_os(Read|Write)pci_configuration are:
+ *
+ * pci_segment is the PCI bus segment range 0-31
+ * pci_bus is the PCI bus number range 0-255
+ * pci_device is the PCI device number range 0-31
+ * pci_function is the PCI device function number
+ * pci_register is the Config space register range 0-255 bytes
+ *
+ * Value - input value for write, output address for read
+ *
+ */
+ pci_id = (struct acpi_pci_id *)region_context;
+ pci_register = (u16) (u32) address;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
+ function, bit_width, pci_id->segment, pci_id->bus,
+ pci_id->device, pci_id->function, pci_register));
+
+ switch (function) {
+ case ACPI_READ:
+
+ status = acpi_os_read_pci_configuration(pci_id, pci_register,
+ &value32, bit_width);
+ *value = value32;
+ break;
+
+ case ACPI_WRITE:
+
+ status = acpi_os_write_pci_configuration(pci_id, pci_register,
+ *value, bit_width);
+ break;
+
+ default:
+
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_cmos_space_handler
+ *
+ * PARAMETERS: Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, or 32)
+ * Value - Pointer to in or out value
+ * handler_context - Pointer to Handler's context
+ * region_context - Pointer to context specific to the
+ * accessed region
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handler for the CMOS address space (Op Region)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_cmos_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_cmos_space_handler);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_pci_bar_space_handler
+ *
+ * PARAMETERS: Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, or 32)
+ * Value - Pointer to in or out value
+ * handler_context - Pointer to Handler's context
+ * region_context - Pointer to context specific to the
+ * accessed region
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handler for the PCI bar_target address space (Op Region)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_pci_bar_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_data_table_space_handler
+ *
+ * PARAMETERS: Function - Read or Write operation
+ * Address - Where in the space to read or write
+ * bit_width - Field width in bits (8, 16, or 32)
+ * Value - Pointer to in or out value
+ * handler_context - Pointer to Handler's context
+ * region_context - Pointer to context specific to the
+ * accessed region
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Handler for the Data Table address space (Op Region)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_data_table_space_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width,
+ acpi_integer * value,
+ void *handler_context, void *region_context)
+{
+ ACPI_FUNCTION_TRACE(ex_data_table_space_handler);
+
+ /* Perform the memory read or write */
+
+ switch (function) {
+ case ACPI_READ:
+
+ ACPI_MEMCPY(ACPI_CAST_PTR(char, value),
+ ACPI_PHYSADDR_TO_PTR(address),
+ ACPI_DIV_8(bit_width));
+ break;
+
+ case ACPI_WRITE:
+ default:
+
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exresnte - AML Interpreter object resolution
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exresnte")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_resolve_node_to_value
+ *
+ * PARAMETERS: object_ptr - Pointer to a location that contains
+ * a pointer to a NS node, and will receive a
+ * pointer to the resolved object.
+ * walk_state - Current state. Valid only if executing AML
+ * code. NULL if simply resolving an object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Resolve a Namespace node to a valued object
+ *
+ * Note: for some of the data types, the pointer attached to the Node
+ * can be either a pointer to an actual internal object or a pointer into the
+ * AML stream itself. These types are currently:
+ *
+ * ACPI_TYPE_INTEGER
+ * ACPI_TYPE_STRING
+ * ACPI_TYPE_BUFFER
+ * ACPI_TYPE_MUTEX
+ * ACPI_TYPE_PACKAGE
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *source_desc;
+ union acpi_operand_object *obj_desc = NULL;
+ struct acpi_namespace_node *node;
+ acpi_object_type entry_type;
+
+ ACPI_FUNCTION_TRACE(ex_resolve_node_to_value);
+
+ /*
+ * The stack pointer points to a struct acpi_namespace_node (Node). Get the
+ * object that is attached to the Node.
+ */
+ node = *object_ptr;
+ source_desc = acpi_ns_get_attached_object(node);
+ entry_type = acpi_ns_get_type((acpi_handle) node);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n",
+ node, source_desc,
+ acpi_ut_get_type_name(entry_type)));
+
+ if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) ||
+ (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
+
+ /* There is always exactly one level of indirection */
+
+ node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object);
+ source_desc = acpi_ns_get_attached_object(node);
+ entry_type = acpi_ns_get_type((acpi_handle) node);
+ *object_ptr = node;
+ }
+
+ /*
+ * Several object types require no further processing:
+ * 1) Device/Thermal objects don't have a "real" subobject, return the Node
+ * 2) Method locals and arguments have a pseudo-Node
+ * 3) 10/2007: Added method type to assist with Package construction.
+ */
+ if ((entry_type == ACPI_TYPE_DEVICE) ||
+ (entry_type == ACPI_TYPE_THERMAL) ||
+ (entry_type == ACPI_TYPE_METHOD) ||
+ (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ if (!source_desc) {
+ ACPI_ERROR((AE_INFO, "No object attached to node %p", node));
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ /*
+ * Action is based on the type of the Node, which indicates the type
+ * of the attached object or pointer
+ */
+ switch (entry_type) {
+ case ACPI_TYPE_PACKAGE:
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_PACKAGE) {
+ ACPI_ERROR((AE_INFO, "Object not a Package, type %s",
+ acpi_ut_get_object_type_name(source_desc)));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ status = acpi_ds_get_package_arguments(source_desc);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Return an additional reference to the object */
+
+ obj_desc = source_desc;
+ acpi_ut_add_reference(obj_desc);
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) {
+ ACPI_ERROR((AE_INFO, "Object not a Buffer, type %s",
+ acpi_ut_get_object_type_name(source_desc)));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ status = acpi_ds_get_buffer_arguments(source_desc);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Return an additional reference to the object */
+
+ obj_desc = source_desc;
+ acpi_ut_add_reference(obj_desc);
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) {
+ ACPI_ERROR((AE_INFO, "Object not a String, type %s",
+ acpi_ut_get_object_type_name(source_desc)));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* Return an additional reference to the object */
+
+ obj_desc = source_desc;
+ acpi_ut_add_reference(obj_desc);
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) {
+ ACPI_ERROR((AE_INFO, "Object not a Integer, type %s",
+ acpi_ut_get_object_type_name(source_desc)));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* Return an additional reference to the object */
+
+ obj_desc = source_desc;
+ acpi_ut_add_reference(obj_desc);
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "FieldRead Node=%p SourceDesc=%p Type=%X\n",
+ node, source_desc, entry_type));
+
+ status =
+ acpi_ex_read_data_from_field(walk_state, source_desc,
+ &obj_desc);
+ break;
+
+ /* For these objects, just return the object attached to the Node */
+
+ case ACPI_TYPE_MUTEX:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_EVENT:
+ case ACPI_TYPE_REGION:
+
+ /* Return an additional reference to the object */
+
+ obj_desc = source_desc;
+ acpi_ut_add_reference(obj_desc);
+ break;
+
+ /* TYPE_ANY is untyped, and thus there is no object associated with it */
+
+ case ACPI_TYPE_ANY:
+
+ ACPI_ERROR((AE_INFO,
+ "Untyped entry %p, no attached object!", node));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ switch (source_desc->reference.class) {
+ case ACPI_REFCLASS_TABLE: /* This is a ddb_handle */
+ case ACPI_REFCLASS_REFOF:
+ case ACPI_REFCLASS_INDEX:
+
+ /* Return an additional reference to the object */
+
+ obj_desc = source_desc;
+ acpi_ut_add_reference(obj_desc);
+ break;
+
+ default:
+ /* No named references are allowed here */
+
+ ACPI_ERROR((AE_INFO,
+ "Unsupported Reference type %X",
+ source_desc->reference.class));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ break;
+
+ default:
+
+ /* Default case is for unknown types */
+
+ ACPI_ERROR((AE_INFO,
+ "Node %p - Unknown object type %X",
+ node, entry_type));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+
+ } /* switch (entry_type) */
+
+ /* Return the object descriptor */
+
+ *object_ptr = (void *)obj_desc;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exresolv - AML Interpreter object resolution
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlcode.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exresolv")
+
+/* Local prototypes */
+static acpi_status
+acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
+ struct acpi_walk_state *walk_state);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_resolve_to_value
+ *
+ * PARAMETERS: **stack_ptr - Points to entry on obj_stack, which can
+ * be either an (union acpi_operand_object *)
+ * or an acpi_handle.
+ * walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert Reference objects to values
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr);
+
+ if (!stack_ptr || !*stack_ptr) {
+ ACPI_ERROR((AE_INFO, "Internal - null pointer"));
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ /*
+ * The entity pointed to by the stack_ptr can be either
+ * 1) A valid union acpi_operand_object, or
+ * 2) A struct acpi_namespace_node (named_obj)
+ */
+ if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_OPERAND) {
+ status = acpi_ex_resolve_object_to_value(stack_ptr, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (!*stack_ptr) {
+ ACPI_ERROR((AE_INFO, "Internal - null pointer"));
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+ }
+
+ /*
+ * Object on the stack may have changed if acpi_ex_resolve_object_to_value()
+ * was called (i.e., we can't use an _else_ here.)
+ */
+ if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_NAMED) {
+ status =
+ acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
+ (struct acpi_namespace_node,
+ stack_ptr), walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Resolved object %p\n", *stack_ptr));
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_resolve_object_to_value
+ *
+ * PARAMETERS: stack_ptr - Pointer to an internal object
+ * walk_state - Current method state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieve the value from an internal object. The Reference type
+ * uses the associated AML opcode to determine the value.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *stack_desc;
+ union acpi_operand_object *obj_desc = NULL;
+ u8 ref_type;
+
+ ACPI_FUNCTION_TRACE(ex_resolve_object_to_value);
+
+ stack_desc = *stack_ptr;
+
+ /* This is an union acpi_operand_object */
+
+ switch (ACPI_GET_OBJECT_TYPE(stack_desc)) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ ref_type = stack_desc->reference.class;
+
+ switch (ref_type) {
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
+
+ /*
+ * Get the local from the method's state info
+ * Note: this increments the local's object reference count
+ */
+ status = acpi_ds_method_data_get_value(ref_type,
+ stack_desc->
+ reference.value,
+ walk_state,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Arg/Local %X] ValueObj is %p\n",
+ stack_desc->reference.value,
+ obj_desc));
+
+ /*
+ * Now we can delete the original Reference Object and
+ * replace it with the resolved value
+ */
+ acpi_ut_remove_reference(stack_desc);
+ *stack_ptr = obj_desc;
+ break;
+
+ case ACPI_REFCLASS_INDEX:
+
+ switch (stack_desc->reference.target_type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ /* Just return - do not dereference */
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ /* If method call or copy_object - do not dereference */
+
+ if ((walk_state->opcode ==
+ AML_INT_METHODCALL_OP)
+ || (walk_state->opcode == AML_COPY_OP)) {
+ break;
+ }
+
+ /* Otherwise, dereference the package_index to a package element */
+
+ obj_desc = *stack_desc->reference.where;
+ if (obj_desc) {
+ /*
+ * Valid object descriptor, copy pointer to return value
+ * (i.e., dereference the package index)
+ * Delete the ref object, increment the returned object
+ */
+ acpi_ut_remove_reference(stack_desc);
+ acpi_ut_add_reference(obj_desc);
+ *stack_ptr = obj_desc;
+ } else {
+ /*
+ * A NULL object descriptor means an uninitialized element of
+ * the package, can't dereference it
+ */
+ ACPI_ERROR((AE_INFO,
+ "Attempt to dereference an Index to NULL package element Idx=%p",
+ stack_desc));
+ status = AE_AML_UNINITIALIZED_ELEMENT;
+ }
+ break;
+
+ default:
+
+ /* Invalid reference object */
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown TargetType %X in Index/Reference object %p",
+ stack_desc->reference.target_type,
+ stack_desc));
+ status = AE_AML_INTERNAL;
+ break;
+ }
+ break;
+
+ case ACPI_REFCLASS_REFOF:
+ case ACPI_REFCLASS_DEBUG:
+ case ACPI_REFCLASS_TABLE:
+
+ /* Just leave the object as-is, do not dereference */
+
+ break;
+
+ case ACPI_REFCLASS_NAME: /* Reference to a named object */
+
+ /* Dereference the name */
+
+ if ((stack_desc->reference.node->type ==
+ ACPI_TYPE_DEVICE)
+ || (stack_desc->reference.node->type ==
+ ACPI_TYPE_THERMAL)) {
+
+ /* These node types do not have 'real' subobjects */
+
+ *stack_ptr = (void *)stack_desc->reference.node;
+ } else {
+ /* Get the object pointed to by the namespace node */
+
+ *stack_ptr =
+ (stack_desc->reference.node)->object;
+ acpi_ut_add_reference(*stack_ptr);
+ }
+
+ acpi_ut_remove_reference(stack_desc);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown Reference type %X in %p", ref_type,
+ stack_desc));
+ status = AE_AML_INTERNAL;
+ break;
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ status = acpi_ds_get_buffer_arguments(stack_desc);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ status = acpi_ds_get_package_arguments(stack_desc);
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "FieldRead SourceDesc=%p Type=%X\n",
+ stack_desc,
+ ACPI_GET_OBJECT_TYPE(stack_desc)));
+
+ status =
+ acpi_ex_read_data_from_field(walk_state, stack_desc,
+ &obj_desc);
+
+ /* Remove a reference to the original operand, then override */
+
+ acpi_ut_remove_reference(*stack_ptr);
+ *stack_ptr = (void *)obj_desc;
+ break;
+
+ default:
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_resolve_multiple
+ *
+ * PARAMETERS: walk_state - Current state (contains AML opcode)
+ * Operand - Starting point for resolution
+ * return_type - Where the object type is returned
+ * return_desc - Where the resolved object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return the base object and type. Traverse a reference list if
+ * necessary to get to the base object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
+ union acpi_operand_object *operand,
+ acpi_object_type * return_type,
+ union acpi_operand_object **return_desc)
+{
+ union acpi_operand_object *obj_desc = (void *)operand;
+ struct acpi_namespace_node *node;
+ acpi_object_type type;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple);
+
+ /* Operand can be either a namespace node or an operand descriptor */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+ case ACPI_DESC_TYPE_OPERAND:
+ type = obj_desc->common.type;
+ break;
+
+ case ACPI_DESC_TYPE_NAMED:
+ type = ((struct acpi_namespace_node *)obj_desc)->type;
+ obj_desc =
+ acpi_ns_get_attached_object((struct acpi_namespace_node *)
+ obj_desc);
+
+ /* If we had an Alias node, use the attached object for type info */
+
+ if (type == ACPI_TYPE_LOCAL_ALIAS) {
+ type = ((struct acpi_namespace_node *)obj_desc)->type;
+ obj_desc =
+ acpi_ns_get_attached_object((struct
+ acpi_namespace_node *)
+ obj_desc);
+ }
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* If type is anything other than a reference, we are done */
+
+ if (type != ACPI_TYPE_LOCAL_REFERENCE) {
+ goto exit;
+ }
+
+ /*
+ * For reference objects created via the ref_of, Index, or Load/load_table
+ * operators, we need to get to the base object (as per the ACPI
+ * specification of the object_type and size_of operators). This means
+ * traversing the list of possibly many nested references.
+ */
+ while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
+ switch (obj_desc->reference.class) {
+ case ACPI_REFCLASS_REFOF:
+ case ACPI_REFCLASS_NAME:
+
+ /* Dereference the reference pointer */
+
+ if (obj_desc->reference.class == ACPI_REFCLASS_REFOF) {
+ node = obj_desc->reference.object;
+ } else { /* AML_INT_NAMEPATH_OP */
+
+ node = obj_desc->reference.node;
+ }
+
+ /* All "References" point to a NS node */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(node) !=
+ ACPI_DESC_TYPE_NAMED) {
+ ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]",
+ node,
+ acpi_ut_get_descriptor_name(node)));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /* Get the attached object */
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+
+ /* No object, use the NS node type */
+
+ type = acpi_ns_get_type(node);
+ goto exit;
+ }
+
+ /* Check for circular references */
+
+ if (obj_desc == operand) {
+ return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE);
+ }
+ break;
+
+ case ACPI_REFCLASS_INDEX:
+
+ /* Get the type of this reference (index into another object) */
+
+ type = obj_desc->reference.target_type;
+ if (type != ACPI_TYPE_PACKAGE) {
+ goto exit;
+ }
+
+ /*
+ * The main object is a package, we want to get the type
+ * of the individual package element that is referenced by
+ * the index.
+ *
+ * This could of course in turn be another reference object.
+ */
+ obj_desc = *(obj_desc->reference.where);
+ if (!obj_desc) {
+
+ /* NULL package elements are allowed */
+
+ type = 0; /* Uninitialized */
+ goto exit;
+ }
+ break;
+
+ case ACPI_REFCLASS_TABLE:
+
+ type = ACPI_TYPE_DDB_HANDLE;
+ goto exit;
+
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
+
+ if (return_desc) {
+ status =
+ acpi_ds_method_data_get_value(obj_desc->
+ reference.
+ class,
+ obj_desc->
+ reference.
+ value,
+ walk_state,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ acpi_ut_remove_reference(obj_desc);
+ } else {
+ status =
+ acpi_ds_method_data_get_node(obj_desc->
+ reference.
+ class,
+ obj_desc->
+ reference.
+ value,
+ walk_state,
+ &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ type = ACPI_TYPE_ANY;
+ goto exit;
+ }
+ }
+ break;
+
+ case ACPI_REFCLASS_DEBUG:
+
+ /* The Debug Object is of type "DebugObject" */
+
+ type = ACPI_TYPE_DEBUG_OBJECT;
+ goto exit;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown Reference Class %2.2X",
+ obj_desc->reference.class));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+ }
+
+ /*
+ * Now we are guaranteed to have an object that has not been created
+ * via the ref_of or Index operators.
+ */
+ type = ACPI_GET_OBJECT_TYPE(obj_desc);
+
+ exit:
+ /* Convert internal types to external types */
+
+ switch (type) {
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ type = ACPI_TYPE_FIELD_UNIT;
+ break;
+
+ case ACPI_TYPE_LOCAL_SCOPE:
+
+ /* Per ACPI Specification, Scope is untyped */
+
+ type = ACPI_TYPE_ANY;
+ break;
+
+ default:
+ /* No change to Type required */
+ break;
+ }
+
+ *return_type = type;
+ if (return_desc) {
+ *return_desc = obj_desc;
+ }
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exresop - AML Interpreter operand/object resolution
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlcode.h>
+#include <acpi/acparser.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exresop")
+
+/* Local prototypes */
+static acpi_status
+acpi_ex_check_object_type(acpi_object_type type_needed,
+ acpi_object_type this_type, void *object);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_check_object_type
+ *
+ * PARAMETERS: type_needed Object type needed
+ * this_type Actual object type
+ * Object Object pointer
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Check required type against actual type
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_check_object_type(acpi_object_type type_needed,
+ acpi_object_type this_type, void *object)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ if (type_needed == ACPI_TYPE_ANY) {
+
+ /* All types OK, so we don't perform any typechecks */
+
+ return (AE_OK);
+ }
+
+ if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) {
+ /*
+ * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference
+ * objects and thus allow them to be targets. (As per the ACPI
+ * specification, a store to a constant is a noop.)
+ */
+ if ((this_type == ACPI_TYPE_INTEGER) &&
+ (((union acpi_operand_object *)object)->common.
+ flags & AOPOBJ_AML_CONSTANT)) {
+ return (AE_OK);
+ }
+ }
+
+ if (type_needed != this_type) {
+ ACPI_ERROR((AE_INFO,
+ "Needed type [%s], found [%s] %p",
+ acpi_ut_get_type_name(type_needed),
+ acpi_ut_get_type_name(this_type), object));
+
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_resolve_operands
+ *
+ * PARAMETERS: Opcode - Opcode being interpreted
+ * stack_ptr - Pointer to the operand stack to be
+ * resolved
+ * walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert multiple input operands to the types required by the
+ * target operator.
+ *
+ * Each 5-bit group in arg_types represents one required
+ * operand and indicates the required Type. The corresponding operand
+ * will be converted to the required type if possible, otherwise we
+ * abort with an exception.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_resolve_operands(u16 opcode,
+ union acpi_operand_object ** stack_ptr,
+ struct acpi_walk_state * walk_state)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status = AE_OK;
+ u8 object_type;
+ u32 arg_types;
+ const struct acpi_opcode_info *op_info;
+ u32 this_arg_type;
+ acpi_object_type type_needed;
+ u16 target_op = 0;
+
+ ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode);
+
+ op_info = acpi_ps_get_opcode_info(opcode);
+ if (op_info->class == AML_CLASS_UNKNOWN) {
+ return_ACPI_STATUS(AE_AML_BAD_OPCODE);
+ }
+
+ arg_types = op_info->runtime_args;
+ if (arg_types == ARGI_INVALID_OPCODE) {
+ ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode));
+
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Opcode %X [%s] RequiredOperandTypes=%8.8X\n",
+ opcode, op_info->name, arg_types));
+
+ /*
+ * Normal exit is with (arg_types == 0) at end of argument list.
+ * Function will return an exception from within the loop upon
+ * finding an entry which is not (or cannot be converted
+ * to) the required type; if stack underflows; or upon
+ * finding a NULL stack entry (which should not happen).
+ */
+ while (GET_CURRENT_ARG_TYPE(arg_types)) {
+ if (!stack_ptr || !*stack_ptr) {
+ ACPI_ERROR((AE_INFO, "Null stack entry at %p",
+ stack_ptr));
+
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ /* Extract useful items */
+
+ obj_desc = *stack_ptr;
+
+ /* Decode the descriptor type */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+ case ACPI_DESC_TYPE_NAMED:
+
+ /* Namespace Node */
+
+ object_type =
+ ((struct acpi_namespace_node *)obj_desc)->type;
+
+ /*
+ * Resolve an alias object. The construction of these objects
+ * guarantees that there is only one level of alias indirection;
+ * thus, the attached object is always the aliased namespace node
+ */
+ if (object_type == ACPI_TYPE_LOCAL_ALIAS) {
+ obj_desc =
+ acpi_ns_get_attached_object((struct
+ acpi_namespace_node
+ *)obj_desc);
+ *stack_ptr = obj_desc;
+ object_type =
+ ((struct acpi_namespace_node *)obj_desc)->
+ type;
+ }
+ break;
+
+ case ACPI_DESC_TYPE_OPERAND:
+
+ /* ACPI internal object */
+
+ object_type = ACPI_GET_OBJECT_TYPE(obj_desc);
+
+ /* Check for bad acpi_object_type */
+
+ if (!acpi_ut_valid_object_type(object_type)) {
+ ACPI_ERROR((AE_INFO,
+ "Bad operand object type [%X]",
+ object_type));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
+
+ /* Validate the Reference */
+
+ switch (obj_desc->reference.class) {
+ case ACPI_REFCLASS_DEBUG:
+
+ target_op = AML_DEBUG_OP;
+
+ /*lint -fallthrough */
+
+ case ACPI_REFCLASS_ARG:
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_INDEX:
+ case ACPI_REFCLASS_REFOF:
+ case ACPI_REFCLASS_TABLE: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
+ case ACPI_REFCLASS_NAME: /* Reference to a named object */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Operand is a Reference, Class [%s] %2.2X\n",
+ acpi_ut_get_reference_name
+ (obj_desc),
+ obj_desc->reference.
+ class));
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown Reference Class %2.2X in %p",
+ obj_desc->reference.class,
+ obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ }
+ break;
+
+ default:
+
+ /* Invalid descriptor */
+
+ ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]",
+ obj_desc,
+ acpi_ut_get_descriptor_name(obj_desc)));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* Get one argument type, point to the next */
+
+ this_arg_type = GET_CURRENT_ARG_TYPE(arg_types);
+ INCREMENT_ARG_LIST(arg_types);
+
+ /*
+ * Handle cases where the object does not need to be
+ * resolved to a value
+ */
+ switch (this_arg_type) {
+ case ARGI_REF_OR_STRING: /* Can be a String or Reference */
+
+ if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
+ ACPI_DESC_TYPE_OPERAND)
+ && (ACPI_GET_OBJECT_TYPE(obj_desc) ==
+ ACPI_TYPE_STRING)) {
+ /*
+ * String found - the string references a named object and
+ * must be resolved to a node
+ */
+ goto next_operand;
+ }
+
+ /*
+ * Else not a string - fall through to the normal Reference
+ * case below
+ */
+ /*lint -fallthrough */
+
+ case ARGI_REFERENCE: /* References: */
+ case ARGI_INTEGER_REF:
+ case ARGI_OBJECT_REF:
+ case ARGI_DEVICE_REF:
+ case ARGI_TARGETREF: /* Allows implicit conversion rules before store */
+ case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */
+ case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */
+
+ /*
+ * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE
+ * A Namespace Node is OK as-is
+ */
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
+ ACPI_DESC_TYPE_NAMED) {
+ goto next_operand;
+ }
+
+ status =
+ acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE,
+ object_type, obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ goto next_operand;
+
+ case ARGI_DATAREFOBJ: /* Store operator only */
+
+ /*
+ * We don't want to resolve index_op reference objects during
+ * a store because this would be an implicit de_ref_of operation.
+ * Instead, we just want to store the reference object.
+ * -- All others must be resolved below.
+ */
+ if ((opcode == AML_STORE_OP) &&
+ (ACPI_GET_OBJECT_TYPE(*stack_ptr) ==
+ ACPI_TYPE_LOCAL_REFERENCE)
+ && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) {
+ goto next_operand;
+ }
+ break;
+
+ default:
+ /* All cases covered above */
+ break;
+ }
+
+ /*
+ * Resolve this object to a value
+ */
+ status = acpi_ex_resolve_to_value(stack_ptr, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the resolved object */
+
+ obj_desc = *stack_ptr;
+
+ /*
+ * Check the resulting object (value) type
+ */
+ switch (this_arg_type) {
+ /*
+ * For the simple cases, only one type of resolved object
+ * is allowed
+ */
+ case ARGI_MUTEX:
+
+ /* Need an operand of type ACPI_TYPE_MUTEX */
+
+ type_needed = ACPI_TYPE_MUTEX;
+ break;
+
+ case ARGI_EVENT:
+
+ /* Need an operand of type ACPI_TYPE_EVENT */
+
+ type_needed = ACPI_TYPE_EVENT;
+ break;
+
+ case ARGI_PACKAGE: /* Package */
+
+ /* Need an operand of type ACPI_TYPE_PACKAGE */
+
+ type_needed = ACPI_TYPE_PACKAGE;
+ break;
+
+ case ARGI_ANYTYPE:
+
+ /* Any operand type will do */
+
+ type_needed = ACPI_TYPE_ANY;
+ break;
+
+ case ARGI_DDBHANDLE:
+
+ /* Need an operand of type ACPI_TYPE_DDB_HANDLE */
+
+ type_needed = ACPI_TYPE_LOCAL_REFERENCE;
+ break;
+
+ /*
+ * The more complex cases allow multiple resolved object types
+ */
+ case ARGI_INTEGER:
+
+ /*
+ * Need an operand of type ACPI_TYPE_INTEGER,
+ * But we can implicitly convert from a STRING or BUFFER
+ * Aka - "Implicit Source Operand Conversion"
+ */
+ status =
+ acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_TYPE) {
+ ACPI_ERROR((AE_INFO,
+ "Needed [Integer/String/Buffer], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ return_ACPI_STATUS(status);
+ }
+
+ if (obj_desc != *stack_ptr) {
+ acpi_ut_remove_reference(obj_desc);
+ }
+ goto next_operand;
+
+ case ARGI_BUFFER:
+
+ /*
+ * Need an operand of type ACPI_TYPE_BUFFER,
+ * But we can implicitly convert from a STRING or INTEGER
+ * Aka - "Implicit Source Operand Conversion"
+ */
+ status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_TYPE) {
+ ACPI_ERROR((AE_INFO,
+ "Needed [Integer/String/Buffer], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ return_ACPI_STATUS(status);
+ }
+
+ if (obj_desc != *stack_ptr) {
+ acpi_ut_remove_reference(obj_desc);
+ }
+ goto next_operand;
+
+ case ARGI_STRING:
+
+ /*
+ * Need an operand of type ACPI_TYPE_STRING,
+ * But we can implicitly convert from a BUFFER or INTEGER
+ * Aka - "Implicit Source Operand Conversion"
+ */
+ status = acpi_ex_convert_to_string(obj_desc, stack_ptr,
+ ACPI_IMPLICIT_CONVERT_HEX);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_TYPE) {
+ ACPI_ERROR((AE_INFO,
+ "Needed [Integer/String/Buffer], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ return_ACPI_STATUS(status);
+ }
+
+ if (obj_desc != *stack_ptr) {
+ acpi_ut_remove_reference(obj_desc);
+ }
+ goto next_operand;
+
+ case ARGI_COMPUTEDATA:
+
+ /* Need an operand of type INTEGER, STRING or BUFFER */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /* Valid operand */
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Needed [Integer/String/Buffer], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ goto next_operand;
+
+ case ARGI_BUFFER_OR_STRING:
+
+ /* Need an operand of type STRING or BUFFER */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /* Valid operand */
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ /* Highest priority conversion is to type Buffer */
+
+ status =
+ acpi_ex_convert_to_buffer(obj_desc,
+ stack_ptr);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (obj_desc != *stack_ptr) {
+ acpi_ut_remove_reference(obj_desc);
+ }
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Needed [Integer/String/Buffer], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ goto next_operand;
+
+ case ARGI_DATAOBJECT:
+ /*
+ * ARGI_DATAOBJECT is only used by the size_of operator.
+ * Need a buffer, string, package, or ref_of reference.
+ *
+ * The only reference allowed here is a direct reference to
+ * a namespace node.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_PACKAGE:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ /* Valid operand */
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Needed [Buffer/String/Package/Reference], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ goto next_operand;
+
+ case ARGI_COMPLEXOBJ:
+
+ /* Need a buffer or package or (ACPI 2.0) String */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_PACKAGE:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /* Valid operand */
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Needed [Buffer/String/Package], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ goto next_operand;
+
+ case ARGI_REGION_OR_BUFFER: /* Used by Load() only */
+
+ /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_REGION:
+
+ /* Valid operand */
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Needed [Region/Buffer], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ goto next_operand;
+
+ case ARGI_DATAREFOBJ:
+
+ /* Used by the Store() operator only */
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_PACKAGE:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+ case ACPI_TYPE_DDB_HANDLE:
+
+ /* Valid operand */
+ break;
+
+ default:
+
+ if (acpi_gbl_enable_interpreter_slack) {
+ /*
+ * Enable original behavior of Store(), allowing any and all
+ * objects as the source operand. The ACPI spec does not
+ * allow this, however.
+ */
+ break;
+ }
+
+ if (target_op == AML_DEBUG_OP) {
+
+ /* Allow store of any object to the Debug object */
+
+ break;
+ }
+
+ ACPI_ERROR((AE_INFO,
+ "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p",
+ acpi_ut_get_object_type_name
+ (obj_desc), obj_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+ goto next_operand;
+
+ default:
+
+ /* Unknown type */
+
+ ACPI_ERROR((AE_INFO,
+ "Internal - Unknown ARGI (required operand) type %X",
+ this_arg_type));
+
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Make sure that the original object was resolved to the
+ * required object type (Simple cases only).
+ */
+ status = acpi_ex_check_object_type(type_needed,
+ ACPI_GET_OBJECT_TYPE
+ (*stack_ptr), *stack_ptr);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ next_operand:
+ /*
+ * If more operands needed, decrement stack_ptr to point
+ * to next operand on stack
+ */
+ if (GET_CURRENT_ARG_TYPE(arg_types)) {
+ stack_ptr--;
+ }
+ }
+
+ ACPI_DUMP_OPERANDS(walk_state->operands,
+ acpi_ps_get_opcode_name(opcode),
+ walk_state->num_operands);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exstore - AML Interpreter object store support
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exstore")
+
+/* Local prototypes */
+static void
+acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
+ u32 level, u32 index);
+
+static acpi_status
+acpi_ex_store_object_to_index(union acpi_operand_object *val_desc,
+ union acpi_operand_object *dest_desc,
+ struct acpi_walk_state *walk_state);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_do_debug_object
+ *
+ * PARAMETERS: source_desc - Value to be stored
+ * Level - Indentation level (used for packages)
+ * Index - Current package element, zero if not pkg
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Handles stores to the Debug Object.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
+ u32 level, u32 index)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
+
+ /* Print line header as long as we are not in the middle of an object display */
+
+ if (!((level > 0) && index == 0)) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s",
+ level, " "));
+ }
+
+ /* Display index for package output only */
+
+ if (index > 0) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ "(%.2u) ", index - 1));
+ }
+
+ if (!source_desc) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n"));
+ return_VOID;
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ",
+ acpi_ut_get_object_type_name
+ (source_desc)));
+
+ if (!acpi_ut_valid_internal_object(source_desc)) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ "%p, Invalid Internal Object!\n",
+ source_desc));
+ return_VOID;
+ }
+ } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
+ ACPI_DESC_TYPE_NAMED) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n",
+ acpi_ut_get_type_name(((struct
+ acpi_namespace_node
+ *)source_desc)->
+ type),
+ source_desc));
+ return_VOID;
+ } else {
+ return_VOID;
+ }
+
+ /* source_desc is of type ACPI_DESC_TYPE_OPERAND */
+
+ switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Output correct integer width */
+
+ if (acpi_gbl_integer_byte_width == 4) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n",
+ (u32) source_desc->integer.
+ value));
+ } else {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ "0x%8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(source_desc->
+ integer.
+ value)));
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n",
+ (u32) source_desc->buffer.length));
+ ACPI_DUMP_BUFFER(source_desc->buffer.pointer,
+ (source_desc->buffer.length <
+ 256) ? source_desc->buffer.length : 256);
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n",
+ source_desc->string.length,
+ source_desc->string.pointer));
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ "[Contains 0x%.2X Elements]\n",
+ source_desc->package.count));
+
+ /* Output the entire contents of the package */
+
+ for (i = 0; i < source_desc->package.count; i++) {
+ acpi_ex_do_debug_object(source_desc->package.
+ elements[i], level + 4, i + 1);
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ",
+ acpi_ut_get_reference_name(source_desc)));
+
+ /* Decode the reference */
+
+ switch (source_desc->reference.class) {
+ case ACPI_REFCLASS_INDEX:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n",
+ source_desc->reference.value));
+ break;
+
+ case ACPI_REFCLASS_TABLE:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ "Table Index 0x%X\n",
+ source_desc->reference.value));
+ break;
+
+ default:
+ break;
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, " "));
+
+ /* Check for valid node first, then valid object */
+
+ if (source_desc->reference.node) {
+ if (ACPI_GET_DESCRIPTOR_TYPE
+ (source_desc->reference.node) !=
+ ACPI_DESC_TYPE_NAMED) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ " %p - Not a valid namespace node\n",
+ source_desc->reference.
+ node));
+ } else {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
+ "Node %p [%4.4s] ",
+ source_desc->reference.
+ node,
+ (source_desc->reference.
+ node)->name.ascii));
+
+ switch ((source_desc->reference.node)->type) {
+
+ /* These types have no attached object */
+
+ case ACPI_TYPE_DEVICE:
+ acpi_os_printf("Device\n");
+ break;
+
+ case ACPI_TYPE_THERMAL:
+ acpi_os_printf("Thermal Zone\n");
+ break;
+
+ default:
+ acpi_ex_do_debug_object((source_desc->
+ reference.
+ node)->object,
+ level + 4, 0);
+ break;
+ }
+ }
+ } else if (source_desc->reference.object) {
+ if (ACPI_GET_DESCRIPTOR_TYPE
+ (source_desc->reference.object) ==
+ ACPI_DESC_TYPE_NAMED) {
+ acpi_ex_do_debug_object(((struct
+ acpi_namespace_node *)
+ source_desc->reference.
+ object)->object,
+ level + 4, 0);
+ } else {
+ acpi_ex_do_debug_object(source_desc->reference.
+ object, level + 4, 0);
+ }
+ }
+ break;
+
+ default:
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n",
+ source_desc));
+ break;
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n"));
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store
+ *
+ * PARAMETERS: *source_desc - Value to be stored
+ * *dest_desc - Where to store it. Must be an NS node
+ * or an union acpi_operand_object of type
+ * Reference;
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the value described by source_desc into the location
+ * described by dest_desc. Called by various interpreter
+ * functions to store the result of an operation into
+ * the destination operand -- not just simply the actual "Store"
+ * ASL operator.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store(union acpi_operand_object *source_desc,
+ union acpi_operand_object *dest_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *ref_desc = dest_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc);
+
+ /* Validate parameters */
+
+ if (!source_desc || !dest_desc) {
+ ACPI_ERROR((AE_INFO, "Null parameter"));
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ /* dest_desc can be either a namespace node or an ACPI object */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(dest_desc) == ACPI_DESC_TYPE_NAMED) {
+ /*
+ * Dest is a namespace node,
+ * Storing an object into a Named node.
+ */
+ status = acpi_ex_store_object_to_node(source_desc,
+ (struct
+ acpi_namespace_node *)
+ dest_desc, walk_state,
+ ACPI_IMPLICIT_CONVERSION);
+
+ return_ACPI_STATUS(status);
+ }
+
+ /* Destination object must be a Reference or a Constant object */
+
+ switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ /* Allow stores to Constants -- a Noop as per ACPI spec */
+
+ if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*lint -fallthrough */
+
+ default:
+
+ /* Destination is not a Reference object */
+
+ ACPI_ERROR((AE_INFO,
+ "Target is not a Reference or Constant object - %s [%p]",
+ acpi_ut_get_object_type_name(dest_desc),
+ dest_desc));
+
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Examine the Reference class. These cases are handled:
+ *
+ * 1) Store to Name (Change the object associated with a name)
+ * 2) Store to an indexed area of a Buffer or Package
+ * 3) Store to a Method Local or Arg
+ * 4) Store to the debug object
+ */
+ switch (ref_desc->reference.class) {
+ case ACPI_REFCLASS_REFOF:
+
+ /* Storing an object into a Name "container" */
+
+ status = acpi_ex_store_object_to_node(source_desc,
+ ref_desc->reference.
+ object, walk_state,
+ ACPI_IMPLICIT_CONVERSION);
+ break;
+
+ case ACPI_REFCLASS_INDEX:
+
+ /* Storing to an Index (pointer into a packager or buffer) */
+
+ status =
+ acpi_ex_store_object_to_index(source_desc, ref_desc,
+ walk_state);
+ break;
+
+ case ACPI_REFCLASS_LOCAL:
+ case ACPI_REFCLASS_ARG:
+
+ /* Store to a method local/arg */
+
+ status =
+ acpi_ds_store_object_to_local(ref_desc->reference.class,
+ ref_desc->reference.value,
+ source_desc, walk_state);
+ break;
+
+ case ACPI_REFCLASS_DEBUG:
+
+ /*
+ * Storing to the Debug object causes the value stored to be
+ * displayed and otherwise has no effect -- see ACPI Specification
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "**** Write to Debug Object: Object %p %s ****:\n\n",
+ source_desc,
+ acpi_ut_get_object_type_name(source_desc)));
+
+ acpi_ex_do_debug_object(source_desc, 0, 0);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
+ ref_desc->reference.class));
+ ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO);
+
+ status = AE_AML_INTERNAL;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_object_to_index
+ *
+ * PARAMETERS: *source_desc - Value to be stored
+ * *dest_desc - Named object to receive the value
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the object to indexed Buffer or Package element
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
+ union acpi_operand_object *index_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *new_desc;
+ u8 value = 0;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ex_store_object_to_index);
+
+ /*
+ * Destination must be a reference pointer, and
+ * must point to either a buffer or a package
+ */
+ switch (index_desc->reference.target_type) {
+ case ACPI_TYPE_PACKAGE:
+ /*
+ * Storing to a package element. Copy the object and replace
+ * any existing object with the new object. No implicit
+ * conversion is performed.
+ *
+ * The object at *(index_desc->Reference.Where) is the
+ * element within the package that is to be modified.
+ * The parent package object is at index_desc->Reference.Object
+ */
+ obj_desc = *(index_desc->reference.where);
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) ==
+ ACPI_TYPE_LOCAL_REFERENCE
+ && source_desc->reference.class == ACPI_REFCLASS_TABLE) {
+
+ /* This is a DDBHandle, just add a reference to it */
+
+ acpi_ut_add_reference(source_desc);
+ new_desc = source_desc;
+ } else {
+ /* Normal object, copy it */
+
+ status =
+ acpi_ut_copy_iobject_to_iobject(source_desc,
+ &new_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ if (obj_desc) {
+
+ /* Decrement reference count by the ref count of the parent package */
+
+ for (i = 0; i < ((union acpi_operand_object *)
+ index_desc->reference.object)->common.
+ reference_count; i++) {
+ acpi_ut_remove_reference(obj_desc);
+ }
+ }
+
+ *(index_desc->reference.where) = new_desc;
+
+ /* Increment ref count by the ref count of the parent package-1 */
+
+ for (i = 1; i < ((union acpi_operand_object *)
+ index_desc->reference.object)->common.
+ reference_count; i++) {
+ acpi_ut_add_reference(new_desc);
+ }
+
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ /*
+ * Store into a Buffer or String (not actually a real buffer_field)
+ * at a location defined by an Index.
+ *
+ * The first 8-bit element of the source object is written to the
+ * 8-bit Buffer location defined by the Index destination object,
+ * according to the ACPI 2.0 specification.
+ */
+
+ /*
+ * Make sure the target is a Buffer or String. An error should
+ * not happen here, since the reference_object was constructed
+ * by the INDEX_OP code.
+ */
+ obj_desc = index_desc->reference.object;
+ if ((ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_BUFFER) &&
+ (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_STRING)) {
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * The assignment of the individual elements will be slightly
+ * different for each source type.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Use the least-significant byte of the integer */
+
+ value = (u8) (source_desc->integer.value);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_STRING:
+
+ /* Note: Takes advantage of common string/buffer fields */
+
+ value = source_desc->buffer.pointer[0];
+ break;
+
+ default:
+
+ /* All other types are invalid */
+
+ ACPI_ERROR((AE_INFO,
+ "Source must be Integer/Buffer/String type, not %s",
+ acpi_ut_get_object_type_name(source_desc)));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* Store the source value into the target buffer byte */
+
+ obj_desc->buffer.pointer[index_desc->reference.value] = value;
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField"));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_object_to_node
+ *
+ * PARAMETERS: source_desc - Value to be stored
+ * Node - Named object to receive the value
+ * walk_state - Current walk state
+ * implicit_conversion - Perform implicit conversion (yes/no)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Store the object to the named object.
+ *
+ * The Assignment of an object to a named object is handled here
+ * The value passed in will replace the current value (if any)
+ * with the input value.
+ *
+ * When storing into an object the data is converted to the
+ * target object type then stored in the object. This means
+ * that the target object type (for an initialized target) will
+ * not be changed by a store operation.
+ *
+ * Assumes parameters are already validated.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
+ struct acpi_namespace_node *node,
+ struct acpi_walk_state *walk_state,
+ u8 implicit_conversion)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *target_desc;
+ union acpi_operand_object *new_desc;
+ acpi_object_type target_type;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc);
+
+ /* Get current type of the node, and object attached to Node */
+
+ target_type = acpi_ns_get_type(node);
+ target_desc = acpi_ns_get_attached_object(node);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n",
+ source_desc,
+ acpi_ut_get_object_type_name(source_desc), node,
+ acpi_ut_get_type_name(target_type)));
+
+ /*
+ * Resolve the source object to an actual value
+ * (If it is a reference object)
+ */
+ status = acpi_ex_resolve_object(&source_desc, target_type, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* If no implicit conversion, drop into the default case below */
+
+ if ((!implicit_conversion) ||
+ ((walk_state->opcode == AML_COPY_OP) &&
+ (target_type != ACPI_TYPE_LOCAL_REGION_FIELD) &&
+ (target_type != ACPI_TYPE_LOCAL_BANK_FIELD) &&
+ (target_type != ACPI_TYPE_LOCAL_INDEX_FIELD))) {
+ /*
+ * Force execution of default (no implicit conversion). Note:
+ * copy_object does not perform an implicit conversion, as per the ACPI
+ * spec -- except in case of region/bank/index fields -- because these
+ * objects must retain their original type permanently.
+ */
+ target_type = ACPI_TYPE_ANY;
+ }
+
+ /* Do the actual store operation */
+
+ switch (target_type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ /* For fields, copy the source data to the target field. */
+
+ status = acpi_ex_write_data_to_field(source_desc, target_desc,
+ &walk_state->result_obj);
+ break;
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * These target types are all of type Integer/String/Buffer, and
+ * therefore support implicit conversion before the store.
+ *
+ * Copy and/or convert the source object to a new target object
+ */
+ status =
+ acpi_ex_store_object_to_object(source_desc, target_desc,
+ &new_desc, walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (new_desc != target_desc) {
+ /*
+ * Store the new new_desc as the new value of the Name, and set
+ * the Name's type to that of the value being stored in it.
+ * source_desc reference count is incremented by attach_object.
+ *
+ * Note: This may change the type of the node if an explicit store
+ * has been performed such that the node/object type has been
+ * changed.
+ */
+ status =
+ acpi_ns_attach_object(node, new_desc,
+ new_desc->common.type);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Store %s into %s via Convert/Attach\n",
+ acpi_ut_get_object_type_name
+ (source_desc),
+ acpi_ut_get_object_type_name
+ (new_desc)));
+ }
+ break;
+
+ default:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Storing %s (%p) directly into node (%p) with no implicit conversion\n",
+ acpi_ut_get_object_type_name(source_desc),
+ source_desc, node));
+
+ /* No conversions for all other types. Just attach the source object */
+
+ status = acpi_ns_attach_object(node, source_desc,
+ ACPI_GET_OBJECT_TYPE
+ (source_desc));
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exstoren - AML Interpreter object store support,
+ * Store to Node (namespace object)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exstoren")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_resolve_object
+ *
+ * PARAMETERS: source_desc_ptr - Pointer to the source object
+ * target_type - Current type of the target
+ * walk_state - Current walk state
+ *
+ * RETURN: Status, resolved object in source_desc_ptr.
+ *
+ * DESCRIPTION: Resolve an object. If the object is a reference, dereference
+ * it and return the actual object in the source_desc_ptr.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
+ acpi_object_type target_type,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *source_desc = *source_desc_ptr;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_resolve_object);
+
+ /* Ensure we have a Target that can be stored to */
+
+ switch (target_type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+ /*
+ * These cases all require only Integers or values that
+ * can be converted to Integers (Strings or Buffers)
+ */
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+
+ /*
+ * Stores into a Field/Region or into a Integer/Buffer/String
+ * are all essentially the same. This case handles the
+ * "interchangeable" types Integer, String, and Buffer.
+ */
+ if (ACPI_GET_OBJECT_TYPE(source_desc) ==
+ ACPI_TYPE_LOCAL_REFERENCE) {
+
+ /* Resolve a reference object first */
+
+ status =
+ acpi_ex_resolve_to_value(source_desc_ptr,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ }
+
+ /* For copy_object, no further validation necessary */
+
+ if (walk_state->opcode == AML_COPY_OP) {
+ break;
+ }
+
+ /* Must have a Integer, Buffer, or String */
+
+ if ((ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) &&
+ (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) &&
+ (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) &&
+ !((ACPI_GET_OBJECT_TYPE(source_desc) ==
+ ACPI_TYPE_LOCAL_REFERENCE)
+ && (source_desc->reference.class ==
+ ACPI_REFCLASS_TABLE))) {
+
+ /* Conversion successful but still not a valid type */
+
+ ACPI_ERROR((AE_INFO,
+ "Cannot assign type %s to %s (must be type Int/Str/Buf)",
+ acpi_ut_get_object_type_name(source_desc),
+ acpi_ut_get_type_name(target_type)));
+ status = AE_AML_OPERAND_TYPE;
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_ALIAS:
+ case ACPI_TYPE_LOCAL_METHOD_ALIAS:
+
+ /*
+ * All aliases should have been resolved earlier, during the
+ * operand resolution phase.
+ */
+ ACPI_ERROR((AE_INFO, "Store into an unresolved Alias object"));
+ status = AE_AML_INTERNAL;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ default:
+
+ /*
+ * All other types than Alias and the various Fields come here,
+ * including the untyped case - ACPI_TYPE_ANY.
+ */
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_object_to_object
+ *
+ * PARAMETERS: source_desc - Object to store
+ * dest_desc - Object to receive a copy of the source
+ * new_desc - New object if dest_desc is obsoleted
+ * walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: "Store" an object to another object. This may include
+ * converting the source type to the target type (implicit
+ * conversion), and a copy of the value of the source to
+ * the target.
+ *
+ * The Assignment of an object to another (not named) object
+ * is handled here.
+ * The Source passed in will replace the current value (if any)
+ * with the input value.
+ *
+ * When storing into an object the data is converted to the
+ * target object type then stored in the object. This means
+ * that the target object type (for an initialized target) will
+ * not be changed by a store operation.
+ *
+ * This module allows destination types of Number, String,
+ * Buffer, and Package.
+ *
+ * Assumes parameters are already validated. NOTE: source_desc
+ * resolution (from a reference object) must be performed by
+ * the caller if necessary.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store_object_to_object(union acpi_operand_object *source_desc,
+ union acpi_operand_object *dest_desc,
+ union acpi_operand_object **new_desc,
+ struct acpi_walk_state *walk_state)
+{
+ union acpi_operand_object *actual_src_desc;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc);
+
+ actual_src_desc = source_desc;
+ if (!dest_desc) {
+ /*
+ * There is no destination object (An uninitialized node or
+ * package element), so we can simply copy the source object
+ * creating a new destination object
+ */
+ status =
+ acpi_ut_copy_iobject_to_iobject(actual_src_desc, new_desc,
+ walk_state);
+ return_ACPI_STATUS(status);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) !=
+ ACPI_GET_OBJECT_TYPE(dest_desc)) {
+ /*
+ * The source type does not match the type of the destination.
+ * Perform the "implicit conversion" of the source to the current type
+ * of the target as per the ACPI specification.
+ *
+ * If no conversion performed, actual_src_desc = source_desc.
+ * Otherwise, actual_src_desc is a temporary object to hold the
+ * converted object.
+ */
+ status =
+ acpi_ex_convert_to_target_type(ACPI_GET_OBJECT_TYPE
+ (dest_desc), source_desc,
+ &actual_src_desc,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (source_desc == actual_src_desc) {
+ /*
+ * No conversion was performed. Return the source_desc as the
+ * new object.
+ */
+ *new_desc = source_desc;
+ return_ACPI_STATUS(AE_OK);
+ }
+ }
+
+ /*
+ * We now have two objects of identical types, and we can perform a
+ * copy of the *value* of the source object.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ dest_desc->integer.value = actual_src_desc->integer.value;
+
+ /* Truncate value if we are executing from a 32-bit ACPI table */
+
+ acpi_ex_truncate_for32bit_table(dest_desc);
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ status =
+ acpi_ex_store_string_to_string(actual_src_desc, dest_desc);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ status =
+ acpi_ex_store_buffer_to_buffer(actual_src_desc, dest_desc);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ status =
+ acpi_ut_copy_iobject_to_iobject(actual_src_desc, &dest_desc,
+ walk_state);
+ break;
+
+ default:
+ /*
+ * All other types come here.
+ */
+ ACPI_WARNING((AE_INFO, "Store into type %s not implemented",
+ acpi_ut_get_object_type_name(dest_desc)));
+
+ status = AE_NOT_IMPLEMENTED;
+ break;
+ }
+
+ if (actual_src_desc != source_desc) {
+
+ /* Delete the intermediate (temporary) source object */
+
+ acpi_ut_remove_reference(actual_src_desc);
+ }
+
+ *new_desc = dest_desc;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exstorob - AML Interpreter object store support, store to object
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exstorob")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_buffer_to_buffer
+ *
+ * PARAMETERS: source_desc - Source object to copy
+ * target_desc - Destination object of the copy
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy a buffer object to another buffer object.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
+ union acpi_operand_object *target_desc)
+{
+ u32 length;
+ u8 *buffer;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc);
+
+ /* We know that source_desc is a buffer by now */
+
+ buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer);
+ length = source_desc->buffer.length;
+
+ /*
+ * If target is a buffer of length zero or is a static buffer,
+ * allocate a new buffer of the proper length
+ */
+ if ((target_desc->buffer.length == 0) ||
+ (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) {
+ target_desc->buffer.pointer = ACPI_ALLOCATE(length);
+ if (!target_desc->buffer.pointer) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ target_desc->buffer.length = length;
+ }
+
+ /* Copy source buffer to target buffer */
+
+ if (length <= target_desc->buffer.length) {
+
+ /* Clear existing buffer and copy in the new one */
+
+ ACPI_MEMSET(target_desc->buffer.pointer, 0,
+ target_desc->buffer.length);
+ ACPI_MEMCPY(target_desc->buffer.pointer, buffer, length);
+
+#ifdef ACPI_OBSOLETE_BEHAVIOR
+ /*
+ * NOTE: ACPI versions up to 3.0 specified that the buffer must be
+ * truncated if the string is smaller than the buffer. However, "other"
+ * implementations of ACPI never did this and thus became the defacto
+ * standard. ACPI 3.0_a changes this behavior such that the buffer
+ * is no longer truncated.
+ */
+
+ /*
+ * OBSOLETE BEHAVIOR:
+ * If the original source was a string, we must truncate the buffer,
+ * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer
+ * copy must not truncate the original buffer.
+ */
+ if (original_src_type == ACPI_TYPE_STRING) {
+
+ /* Set the new length of the target */
+
+ target_desc->buffer.length = length;
+ }
+#endif
+ } else {
+ /* Truncate the source, copy only what will fit */
+
+ ACPI_MEMCPY(target_desc->buffer.pointer, buffer,
+ target_desc->buffer.length);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Truncating source buffer from %X to %X\n",
+ length, target_desc->buffer.length));
+ }
+
+ /* Copy flags */
+
+ target_desc->buffer.flags = source_desc->buffer.flags;
+ target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_store_string_to_string
+ *
+ * PARAMETERS: source_desc - Source object to copy
+ * target_desc - Destination object of the copy
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy a String object to another String object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
+ union acpi_operand_object *target_desc)
+{
+ u32 length;
+ u8 *buffer;
+
+ ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc);
+
+ /* We know that source_desc is a string by now */
+
+ buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer);
+ length = source_desc->string.length;
+
+ /*
+ * Replace existing string value if it will fit and the string
+ * pointer is not a static pointer (part of an ACPI table)
+ */
+ if ((length < target_desc->string.length) &&
+ (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
+ /*
+ * String will fit in existing non-static buffer.
+ * Clear old string and copy in the new one
+ */
+ ACPI_MEMSET(target_desc->string.pointer, 0,
+ (acpi_size) target_desc->string.length + 1);
+ ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
+ } else {
+ /*
+ * Free the current buffer, then allocate a new buffer
+ * large enough to hold the value
+ */
+ if (target_desc->string.pointer &&
+ (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
+
+ /* Only free if not a pointer into the DSDT */
+
+ ACPI_FREE(target_desc->string.pointer);
+ }
+
+ target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size)
+ length + 1);
+ if (!target_desc->string.pointer) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
+ ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
+ }
+
+ /* Set the new target length */
+
+ target_desc->string.length = length;
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exsystem - Interface to OS services
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exsystem")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_wait_semaphore
+ *
+ * PARAMETERS: Semaphore - Semaphore to wait on
+ * Timeout - Max time to wait
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Implements a semaphore wait with a check to see if the
+ * semaphore is available immediately. If it is not, the
+ * interpreter is released before waiting.
+ *
+ ******************************************************************************/
+acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
+
+ status = acpi_os_wait_semaphore(semaphore, 1, ACPI_DO_NOT_WAIT);
+ if (ACPI_SUCCESS(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (status == AE_TIME) {
+
+ /* We must wait, so unlock the interpreter */
+
+ acpi_ex_relinquish_interpreter();
+
+ status = acpi_os_wait_semaphore(semaphore, 1, timeout);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "*** Thread awake after blocking, %s\n",
+ acpi_format_exception(status)));
+
+ /* Reacquire the interpreter */
+
+ acpi_ex_reacquire_interpreter();
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_wait_mutex
+ *
+ * PARAMETERS: Mutex - Mutex to wait on
+ * Timeout - Max time to wait
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Implements a mutex wait with a check to see if the
+ * mutex is available immediately. If it is not, the
+ * interpreter is released before waiting.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_system_wait_mutex);
+
+ status = acpi_os_acquire_mutex(mutex, ACPI_DO_NOT_WAIT);
+ if (ACPI_SUCCESS(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (status == AE_TIME) {
+
+ /* We must wait, so unlock the interpreter */
+
+ acpi_ex_relinquish_interpreter();
+
+ status = acpi_os_acquire_mutex(mutex, timeout);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "*** Thread awake after blocking, %s\n",
+ acpi_format_exception(status)));
+
+ /* Reacquire the interpreter */
+
+ acpi_ex_reacquire_interpreter();
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_do_stall
+ *
+ * PARAMETERS: how_long - The amount of time to stall,
+ * in microseconds
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Suspend running thread for specified amount of time.
+ * Note: ACPI specification requires that Stall() does not
+ * relinquish the processor, and delays longer than 100 usec
+ * should use Sleep() instead. We allow stalls up to 255 usec
+ * for compatibility with other interpreters and existing BIOSs.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_system_do_stall(u32 how_long)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (how_long > 255) { /* 255 microseconds */
+ /*
+ * Longer than 255 usec, this is an error
+ *
+ * (ACPI specifies 100 usec as max, but this gives some slack in
+ * order to support existing BIOSs)
+ */
+ ACPI_ERROR((AE_INFO, "Time parameter is too large (%d)",
+ how_long));
+ status = AE_AML_OPERAND_VALUE;
+ } else {
+ acpi_os_stall(how_long);
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_do_suspend
+ *
+ * PARAMETERS: how_long - The amount of time to suspend,
+ * in milliseconds
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Suspend running thread for specified amount of time.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Since this thread will sleep, we must release the interpreter */
+
+ acpi_ex_relinquish_interpreter();
+
+ acpi_os_sleep(how_long);
+
+ /* And now we must get the interpreter again */
+
+ acpi_ex_reacquire_interpreter();
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_signal_event
+ *
+ * PARAMETERS: obj_desc - The object descriptor for this op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Provides an access point to perform synchronization operations
+ * within the AML.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_system_signal_event(union acpi_operand_object * obj_desc)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_system_signal_event);
+
+ if (obj_desc) {
+ status =
+ acpi_os_signal_semaphore(obj_desc->event.os_semaphore, 1);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_wait_event
+ *
+ * PARAMETERS: time_desc - The 'time to delay' object descriptor
+ * obj_desc - The object descriptor for this op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Provides an access point to perform synchronization operations
+ * within the AML. This operation is a request to wait for an
+ * event.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_system_wait_event(union acpi_operand_object *time_desc,
+ union acpi_operand_object *obj_desc)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ex_system_wait_event);
+
+ if (obj_desc) {
+ status =
+ acpi_ex_system_wait_semaphore(obj_desc->event.os_semaphore,
+ (u16) time_desc->integer.
+ value);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_system_reset_event
+ *
+ * PARAMETERS: obj_desc - The object descriptor for this op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Reset an event to a known state.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc)
+{
+ acpi_status status = AE_OK;
+ acpi_semaphore temp_semaphore;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * We are going to simply delete the existing semaphore and
+ * create a new one!
+ */
+ status =
+ acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore);
+ if (ACPI_SUCCESS(status)) {
+ (void)acpi_os_delete_semaphore(obj_desc->event.os_semaphore);
+ obj_desc->event.os_semaphore = temp_semaphore;
+ }
+
+ return (status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: exutils - interpreter/scanner utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+/*
+ * DEFINE_AML_GLOBALS is tested in amlcode.h
+ * to determine whether certain global names should be "defined" or only
+ * "declared" in the current compilation. This enhances maintainability
+ * by enabling a single header file to embody all knowledge of the names
+ * in question.
+ *
+ * Exactly one module of any executable should #define DEFINE_GLOBALS
+ * before #including the header files which use this convention. The
+ * names in question will be defined and initialized in that module,
+ * and declared as extern in all other modules which #include those
+ * header files.
+ */
+
+#define DEFINE_AML_GLOBALS
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_EXECUTER
+ACPI_MODULE_NAME("exutils")
+
+/* Local prototypes */
+static u32 acpi_ex_digits_needed(acpi_integer value, u32 base);
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_enter_interpreter
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Enter the interpreter execution region. Failure to enter
+ * the interpreter region is a fatal system error. Used in
+ * conjunction with exit_interpreter.
+ *
+ ******************************************************************************/
+
+void acpi_ex_enter_interpreter(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_enter_interpreter);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not acquire AML Interpreter mutex"));
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_reacquire_interpreter
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Reacquire the interpreter execution region from within the
+ * interpreter code. Failure to enter the interpreter region is a
+ * fatal system error. Used in conjuction with
+ * relinquish_interpreter
+ *
+ ******************************************************************************/
+
+void acpi_ex_reacquire_interpreter(void)
+{
+ ACPI_FUNCTION_TRACE(ex_reacquire_interpreter);
+
+ /*
+ * If the global serialized flag is set, do not release the interpreter,
+ * since it was not actually released by acpi_ex_relinquish_interpreter.
+ * This forces the interpreter to be single threaded.
+ */
+ if (!acpi_gbl_all_methods_serialized) {
+ acpi_ex_enter_interpreter();
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_exit_interpreter
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Exit the interpreter execution region. This is the top level
+ * routine used to exit the interpreter when all processing has
+ * been completed.
+ *
+ ******************************************************************************/
+
+void acpi_ex_exit_interpreter(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_exit_interpreter);
+
+ status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not release AML Interpreter mutex"));
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_relinquish_interpreter
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Exit the interpreter execution region, from within the
+ * interpreter - before attempting an operation that will possibly
+ * block the running thread.
+ *
+ * Cases where the interpreter is unlocked internally
+ * 1) Method to be blocked on a Sleep() AML opcode
+ * 2) Method to be blocked on an Acquire() AML opcode
+ * 3) Method to be blocked on a Wait() AML opcode
+ * 4) Method to be blocked to acquire the global lock
+ * 5) Method to be blocked waiting to execute a serialized control method
+ * that is currently executing
+ * 6) About to invoke a user-installed opregion handler
+ *
+ ******************************************************************************/
+
+void acpi_ex_relinquish_interpreter(void)
+{
+ ACPI_FUNCTION_TRACE(ex_relinquish_interpreter);
+
+ /*
+ * If the global serialized flag is set, do not release the interpreter.
+ * This forces the interpreter to be single threaded.
+ */
+ if (!acpi_gbl_all_methods_serialized) {
+ acpi_ex_exit_interpreter();
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_truncate_for32bit_table
+ *
+ * PARAMETERS: obj_desc - Object to be truncated
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is
+ * 32-bit, as determined by the revision of the DSDT.
+ *
+ ******************************************************************************/
+
+void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Object must be a valid number and we must be executing
+ * a control method. NS node could be there for AML_INT_NAMEPATH_OP.
+ */
+ if ((!obj_desc) ||
+ (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) ||
+ (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) {
+ return;
+ }
+
+ if (acpi_gbl_integer_byte_width == 4) {
+ /*
+ * We are running a method that exists in a 32-bit ACPI table.
+ * Truncate the value to 32 bits by zeroing out the upper 32-bit field
+ */
+ obj_desc->integer.value &= (acpi_integer) ACPI_UINT32_MAX;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_acquire_global_lock
+ *
+ * PARAMETERS: field_flags - Flags with Lock rule:
+ * always_lock or never_lock
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Obtain the ACPI hardware Global Lock, only if the field
+ * flags specifiy that it is to be obtained before field access.
+ *
+ ******************************************************************************/
+
+void acpi_ex_acquire_global_lock(u32 field_flags)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_acquire_global_lock);
+
+ /* Only use the lock if the always_lock bit is set */
+
+ if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) {
+ return_VOID;
+ }
+
+ /* Attempt to get the global lock, wait forever */
+
+ status = acpi_ex_acquire_mutex_object(ACPI_WAIT_FOREVER,
+ acpi_gbl_global_lock_mutex,
+ acpi_os_get_thread_id());
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not acquire Global Lock"));
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_release_global_lock
+ *
+ * PARAMETERS: field_flags - Flags with Lock rule:
+ * always_lock or never_lock
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Release the ACPI hardware Global Lock
+ *
+ ******************************************************************************/
+
+void acpi_ex_release_global_lock(u32 field_flags)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ex_release_global_lock);
+
+ /* Only use the lock if the always_lock bit is set */
+
+ if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) {
+ return_VOID;
+ }
+
+ /* Release the global lock */
+
+ status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
+ if (ACPI_FAILURE(status)) {
+
+ /* Report the error, but there isn't much else we can do */
+
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not release Global Lock"));
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_digits_needed
+ *
+ * PARAMETERS: Value - Value to be represented
+ * Base - Base of representation
+ *
+ * RETURN: The number of digits.
+ *
+ * DESCRIPTION: Calculate the number of digits needed to represent the Value
+ * in the given Base (Radix)
+ *
+ ******************************************************************************/
+
+static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
+{
+ u32 num_digits;
+ acpi_integer current_value;
+
+ ACPI_FUNCTION_TRACE(ex_digits_needed);
+
+ /* acpi_integer is unsigned, so we don't worry about a '-' prefix */
+
+ if (value == 0) {
+ return_UINT32(1);
+ }
+
+ current_value = value;
+ num_digits = 0;
+
+ /* Count the digits in the requested base */
+
+ while (current_value) {
+ (void)acpi_ut_short_divide(current_value, base, ¤t_value,
+ NULL);
+ num_digits++;
+ }
+
+ return_UINT32(num_digits);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_eisa_id_to_string
+ *
+ * PARAMETERS: numeric_id - EISA ID to be converted
+ * out_string - Where to put the converted string (8 bytes)
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Convert a numeric EISA ID to string representation
+ *
+ ******************************************************************************/
+
+void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string)
+{
+ u32 eisa_id;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Swap ID to big-endian to get contiguous bits */
+
+ eisa_id = acpi_ut_dword_byte_swap(numeric_id);
+
+ out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f));
+ out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f));
+ out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f));
+ out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12);
+ out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8);
+ out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4);
+ out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0);
+ out_string[7] = 0;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ex_unsigned_integer_to_string
+ *
+ * PARAMETERS: Value - Value to be converted
+ * out_string - Where to put the converted string (8 bytes)
+ *
+ * RETURN: None, string
+ *
+ * DESCRIPTION: Convert a number to string representation. Assumes string
+ * buffer is large enough to hold the string.
+ *
+ ******************************************************************************/
+
+void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string)
+{
+ u32 count;
+ u32 digits_needed;
+ u32 remainder;
+
+ ACPI_FUNCTION_ENTRY();
+
+ digits_needed = acpi_ex_digits_needed(value, 10);
+ out_string[digits_needed] = 0;
+
+ for (count = digits_needed; count > 0; count--) {
+ (void)acpi_ut_short_divide(value, 10, &value, &remainder);
+ out_string[count - 1] = (char)('0' + remainder);
+ }
+}
+
+#endif
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwacpi")
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_set_mode
+ *
+ * PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Transitions the system into the requested mode.
+ *
+ ******************************************************************************/
+acpi_status acpi_hw_set_mode(u32 mode)
+{
+
+ acpi_status status;
+ u32 retry;
+
+ ACPI_FUNCTION_TRACE(hw_set_mode);
+
+ /*
+ * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
+ * system does not support mode transition.
+ */
+ if (!acpi_gbl_FADT.smi_command) {
+ ACPI_ERROR((AE_INFO,
+ "No SMI_CMD in FADT, mode transition failed"));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+ }
+
+ /*
+ * ACPI 2.0 clarified the meaning of ACPI_ENABLE and ACPI_DISABLE
+ * in FADT: If it is zero, enabling or disabling is not supported.
+ * As old systems may have used zero for mode transition,
+ * we make sure both the numbers are zero to determine these
+ * transitions are not supported.
+ */
+ if (!acpi_gbl_FADT.acpi_enable && !acpi_gbl_FADT.acpi_disable) {
+ ACPI_ERROR((AE_INFO,
+ "No ACPI mode transition supported in this system (enable/disable both zero)"));
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ switch (mode) {
+ case ACPI_SYS_MODE_ACPI:
+
+ /* BIOS should have disabled ALL fixed and GP events */
+
+ status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+ (u32) acpi_gbl_FADT.acpi_enable, 8);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Attempting to enable ACPI mode\n"));
+ break;
+
+ case ACPI_SYS_MODE_LEGACY:
+
+ /*
+ * BIOS should clear all fixed status bits and restore fixed event
+ * enable bits to default
+ */
+ status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+ (u32) acpi_gbl_FADT.acpi_disable,
+ 8);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Attempting to enable Legacy (non-ACPI) mode\n"));
+ break;
+
+ default:
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not write ACPI mode change"));
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Some hardware takes a LONG time to switch modes. Give them 3 sec to
+ * do so, but allow faster systems to proceed more quickly.
+ */
+ retry = 3000;
+ while (retry) {
+ if (acpi_hw_get_mode() == mode) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Mode %X successfully enabled\n",
+ mode));
+ return_ACPI_STATUS(AE_OK);
+ }
+ acpi_os_stall(1000);
+ retry--;
+ }
+
+ ACPI_ERROR((AE_INFO, "Hardware did not change modes"));
+ return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_hw_get_mode
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: SYS_MODE_ACPI or SYS_MODE_LEGACY
+ *
+ * DESCRIPTION: Return current operating state of system. Determined by
+ * querying the SCI_EN bit.
+ *
+ ******************************************************************************/
+
+u32 acpi_hw_get_mode(void)
+{
+ acpi_status status;
+ u32 value;
+
+ ACPI_FUNCTION_TRACE(hw_get_mode);
+
+ /*
+ * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
+ * system does not support mode transition.
+ */
+ if (!acpi_gbl_FADT.smi_command) {
+ return_UINT32(ACPI_SYS_MODE_ACPI);
+ }
+
+ status = acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value);
+ if (ACPI_FAILURE(status)) {
+ return_UINT32(ACPI_SYS_MODE_LEGACY);
+ }
+
+ if (value) {
+ return_UINT32(ACPI_SYS_MODE_ACPI);
+ } else {
+ return_UINT32(ACPI_SYS_MODE_LEGACY);
+ }
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: hwgpe - Low level GPE enable/disable/clear functions
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwgpe")
+
+/* Local prototypes */
+static acpi_status
+acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block,
+ void *context);
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_low_disable_gpe
+ *
+ * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable a single GPE in the enable register.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+{
+ struct acpi_gpe_register_info *gpe_register_info;
+ acpi_status status;
+ u32 enable_mask;
+
+ /* Get the info block for the entire GPE register */
+
+ gpe_register_info = gpe_event_info->register_info;
+ if (!gpe_register_info) {
+ return (AE_NOT_EXIST);
+ }
+
+ /* Get current value of the enable register that contains this GPE */
+
+ status = acpi_read(&enable_mask, &gpe_register_info->enable_address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Clear just the bit that corresponds to this GPE */
+
+ ACPI_CLEAR_BIT(enable_mask,
+ ((u32) 1 <<
+ (gpe_event_info->gpe_number -
+ gpe_register_info->base_gpe_number)));
+
+ /* Write the updated enable mask */
+
+ status = acpi_write(enable_mask, &gpe_register_info->enable_address);
+ return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_write_gpe_enable_reg
+ *
+ * PARAMETERS: gpe_event_info - Info block for the GPE to be enabled
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Write a GPE enable register. Note: The bit for this GPE must
+ * already be cleared or set in the parent register
+ * enable_for_run mask.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
+{
+ struct acpi_gpe_register_info *gpe_register_info;
+ acpi_status status;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Get the info block for the entire GPE register */
+
+ gpe_register_info = gpe_event_info->register_info;
+ if (!gpe_register_info) {
+ return (AE_NOT_EXIST);
+ }
+
+ /* Write the entire GPE (runtime) enable register */
+
+ status = acpi_write(gpe_register_info->enable_for_run,
+ &gpe_register_info->enable_address);
+
+ return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_clear_gpe
+ *
+ * PARAMETERS: gpe_event_info - Info block for the GPE to be cleared
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Clear the status bit for a single GPE.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
+{
+ acpi_status status;
+ u8 register_bit;
+
+ ACPI_FUNCTION_ENTRY();
+
+ register_bit = (u8)
+ (1 <<
+ (gpe_event_info->gpe_number -
+ gpe_event_info->register_info->base_gpe_number));
+
+ /*
+ * Write a one to the appropriate bit in the status register to
+ * clear this GPE.
+ */
+ status = acpi_write(register_bit,
+ &gpe_event_info->register_info->status_address);
+
+ return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_get_gpe_status
+ *
+ * PARAMETERS: gpe_event_info - Info block for the GPE to queried
+ * event_status - Where the GPE status is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return the status of a single GPE.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
+ acpi_event_status * event_status)
+{
+ u32 in_byte;
+ u8 register_bit;
+ struct acpi_gpe_register_info *gpe_register_info;
+ acpi_status status;
+ acpi_event_status local_event_status = 0;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!event_status) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Get the info block for the entire GPE register */
+
+ gpe_register_info = gpe_event_info->register_info;
+
+ /* Get the register bitmask for this GPE */
+
+ register_bit = (u8)
+ (1 <<
+ (gpe_event_info->gpe_number -
+ gpe_event_info->register_info->base_gpe_number));
+
+ /* GPE currently enabled? (enabled for runtime?) */
+
+ if (register_bit & gpe_register_info->enable_for_run) {
+ local_event_status |= ACPI_EVENT_FLAG_ENABLED;
+ }
+
+ /* GPE enabled for wake? */
+
+ if (register_bit & gpe_register_info->enable_for_wake) {
+ local_event_status |= ACPI_EVENT_FLAG_WAKE_ENABLED;
+ }
+
+ /* GPE currently active (status bit == 1)? */
+
+ status = acpi_read(&in_byte, &gpe_register_info->status_address);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ if (register_bit & in_byte) {
+ local_event_status |= ACPI_EVENT_FLAG_SET;
+ }
+
+ /* Set return value */
+
+ (*event_status) = local_event_status;
+
+ unlock_and_exit:
+ return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_disable_gpe_block
+ *
+ * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
+ * gpe_block - Gpe Block info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable all GPEs within a single GPE block
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
+{
+ u32 i;
+ acpi_status status;
+
+ /* Examine each GPE Register within the block */
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+
+ /* Disable all GPEs in this register */
+
+ status =
+ acpi_write(0x00,
+ &gpe_block->register_info[i].enable_address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_clear_gpe_block
+ *
+ * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
+ * gpe_block - Gpe Block info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Clear status bits for all GPEs within a single GPE block
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
+{
+ u32 i;
+ acpi_status status;
+
+ /* Examine each GPE Register within the block */
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+
+ /* Clear status on all GPEs in this register */
+
+ status =
+ acpi_write(0xFF,
+ &gpe_block->register_info[i].status_address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_enable_runtime_gpe_block
+ *
+ * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
+ * gpe_block - Gpe Block info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes
+ * combination wake/run GPEs.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block, void *context)
+{
+ u32 i;
+ acpi_status status;
+
+ /* NOTE: assumes that all GPEs are currently disabled */
+
+ /* Examine each GPE Register within the block */
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+ if (!gpe_block->register_info[i].enable_for_run) {
+ continue;
+ }
+
+ /* Enable all "runtime" GPEs in this register */
+
+ status = acpi_write(gpe_block->register_info[i].enable_for_run,
+ &gpe_block->register_info[i].
+ enable_address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_enable_wakeup_gpe_block
+ *
+ * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
+ * gpe_block - Gpe Block info
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes
+ * combination wake/run GPEs.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block,
+ void *context)
+{
+ u32 i;
+ acpi_status status;
+
+ /* Examine each GPE Register within the block */
+
+ for (i = 0; i < gpe_block->register_count; i++) {
+ if (!gpe_block->register_info[i].enable_for_wake) {
+ continue;
+ }
+
+ /* Enable all "wake" GPEs in this register */
+
+ status = acpi_write(gpe_block->register_info[i].enable_for_wake,
+ &gpe_block->register_info[i].
+ enable_address);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_disable_all_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Disable and clear all GPEs in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_disable_all_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(hw_disable_all_gpes);
+
+ status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
+ status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_enable_all_runtime_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_enable_all_runtime_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes);
+
+ status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block, NULL);
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_enable_all_wakeup_gpes
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_enable_all_wakeup_gpes(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes);
+
+ status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block, NULL);
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/*******************************************************************************
+ *
+ * Module Name: hwregs - Read/write access functions for the various ACPI
+ * control and status registers.
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwregs")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_hw_clear_acpi_status
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Clears all fixed and general purpose status bits
+ * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+acpi_status acpi_hw_clear_acpi_status(void)
+{
+ acpi_status status;
+ acpi_cpu_flags lock_flags = 0;
+
+ ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
+ ACPI_BITMASK_ALL_FIXED_STATUS,
+ (u16) acpi_gbl_FADT.xpm1a_event_block.address));
+
+ lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITMASK_ALL_FIXED_STATUS);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Clear the fixed events */
+
+ if (acpi_gbl_FADT.xpm1b_event_block.address) {
+ status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS,
+ &acpi_gbl_FADT.xpm1b_event_block);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+ }
+
+ /* Clear the GPE Bits in all GPE registers in all GPE blocks */
+
+ status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
+
+ unlock_and_exit:
+ acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_hw_get_register_bit_mask
+ *
+ * PARAMETERS: register_id - Index of ACPI Register to access
+ *
+ * RETURN: The bitmask to be used when accessing the register
+ *
+ * DESCRIPTION: Map register_id into a register bitmask.
+ *
+ ******************************************************************************/
+
+struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ if (register_id > ACPI_BITREG_MAX) {
+ ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X",
+ register_id));
+ return (NULL);
+ }
+
+ return (&acpi_gbl_bit_register_info[register_id]);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_register_read
+ *
+ * PARAMETERS: register_id - ACPI Register ID
+ * return_value - Where the register value is returned
+ *
+ * RETURN: Status and the value read.
+ *
+ * DESCRIPTION: Read from the specified ACPI register
+ *
+ ******************************************************************************/
+acpi_status
+acpi_hw_register_read(u32 register_id, u32 * return_value)
+{
+ u32 value1 = 0;
+ u32 value2 = 0;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(hw_register_read);
+
+ switch (register_id) {
+ case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_event_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_event_block);
+ value1 |= value2;
+ break;
+
+ case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_xpm1a_enable);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_read(&value2, &acpi_gbl_xpm1b_enable);
+ value1 |= value2;
+ break;
+
+ case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_control_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_control_block);
+ value1 |= value2;
+ break;
+
+ case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm2_control_block);
+ break;
+
+ case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
+
+ status = acpi_read(&value1, &acpi_gbl_FADT.xpm_timer_block);
+ break;
+
+ case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
+
+ status =
+ acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id));
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ exit:
+
+ if (ACPI_SUCCESS(status)) {
+ *return_value = value1;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_hw_register_write
+ *
+ * PARAMETERS: register_id - ACPI Register ID
+ * Value - The value to write
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Write to the specified ACPI register
+ *
+ * NOTE: In accordance with the ACPI specification, this function automatically
+ * preserves the value of the following bits, meaning that these bits cannot be
+ * changed via this interface:
+ *
+ * PM1_CONTROL[0] = SCI_EN
+ * PM1_CONTROL[9]
+ * PM1_STATUS[11]
+ *
+ * ACPI References:
+ * 1) Hardware Ignored Bits: When software writes to a register with ignored
+ * bit fields, it preserves the ignored bit fields
+ * 2) SCI_EN: OSPM always preserves this bit position
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_register_write(u32 register_id, u32 value)
+{
+ acpi_status status;
+ u32 read_value;
+
+ ACPI_FUNCTION_TRACE(hw_register_write);
+
+ switch (register_id) {
+ case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
+
+ /* Perform a read first to preserve certain bits (per ACPI spec) */
+
+ status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS,
+ &read_value);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Insert the bits to be preserved */
+
+ ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS,
+ read_value);
+
+ /* Now we can write the data */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1a_event_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1b_event_block);
+ break;
+
+ case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
+
+ status = acpi_write(value, &acpi_gbl_xpm1a_enable);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* PM1B is optional */
+
+ status = acpi_write(value, &acpi_gbl_xpm1b_enable);
+ break;
+
+ case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
+
+ /*
+ * Perform a read first to preserve certain bits (per ACPI spec)
+ */
+ status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
+ &read_value);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* Insert the bits to be preserved */
+
+ ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS,
+ read_value);
+
+ /* Now we can write the data */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
+ break;
+
+ case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
+ break;
+
+ case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
+ break;
+
+ case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block);
+ break;
+
+ case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
+
+ status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block);
+ break;
+
+ case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
+
+ /* SMI_CMD is currently always in IO space */
+
+ status =
+ acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8);
+ break;
+
+ default:
+ status = AE_BAD_PARAMETER;
+ break;
+ }
+
+ exit:
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+
+/******************************************************************************
+ *
+ * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwsleep")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_firmware_waking_vector
+ *
+ * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
+ * entry point.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
+ *
+ ******************************************************************************/
+acpi_status
+acpi_set_firmware_waking_vector(u32 physical_address)
+{
+ ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
+
+
+ /*
+ * According to the ACPI specification 2.0c and later, the 64-bit
+ * waking vector should be cleared and the 32-bit waking vector should
+ * be used, unless we want the wake-up code to be called by the BIOS in
+ * Protected Mode. Some systems (for example HP dv5-1004nr) are known
+ * to fail to resume if the 64-bit vector is used.
+ */
+
+ /* Set the 32-bit vector */
+
+ acpi_gbl_FACS->firmware_waking_vector = physical_address;
+
+ /* Clear the 64-bit vector if it exists */
+
+ if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
+ acpi_gbl_FACS->xfirmware_waking_vector = 0;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_firmware_waking_vector64
+ *
+ * PARAMETERS: physical_address - 64-bit physical address of ACPI protected
+ * mode entry point.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
+ * it exists in the table.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_set_firmware_waking_vector64(u64 physical_address)
+{
+ ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
+
+
+ /* Determine if the 64-bit vector actually exists */
+
+ if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Clear 32-bit vector, set the 64-bit X_ vector */
+
+ acpi_gbl_FACS->firmware_waking_vector = 0;
+ acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enter_sleep_state_prep
+ *
+ * PARAMETERS: sleep_state - Which sleep state to enter
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231)
+ * This function must execute with interrupts enabled.
+ * We break sleeping into 2 stages so that OSPM can handle
+ * various OS-specific tasks between the two steps.
+ *
+ ******************************************************************************/
+acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
+{
+ acpi_status status;
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+
+ ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
+
+ /*
+ * _PSW methods could be run here to enable wake-on keyboard, LAN, etc.
+ */
+ status = acpi_get_sleep_type_data(sleep_state,
+ &acpi_gbl_sleep_type_a,
+ &acpi_gbl_sleep_type_b);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Setup parameter object */
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = sleep_state;
+
+ /* Run the _PTS method */
+
+ status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Setup the argument to _SST */
+
+ switch (sleep_state) {
+ case ACPI_STATE_S0:
+ arg.integer.value = ACPI_SST_WORKING;
+ break;
+
+ case ACPI_STATE_S1:
+ case ACPI_STATE_S2:
+ case ACPI_STATE_S3:
+ arg.integer.value = ACPI_SST_SLEEPING;
+ break;
+
+ case ACPI_STATE_S4:
+ arg.integer.value = ACPI_SST_SLEEP_CONTEXT;
+ break;
+
+ default:
+ arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */
+ break;
+ }
+
+ /*
+ * Set the system indicators to show the desired sleep state.
+ * _SST is an optional method (return no error if not found)
+ */
+ status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While executing method _SST"));
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enter_sleep_state
+ *
+ * PARAMETERS: sleep_state - Which sleep state to enter
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
+ * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
+{
+ u32 PM1Acontrol;
+ u32 PM1Bcontrol;
+ struct acpi_bit_register_info *sleep_type_reg_info;
+ struct acpi_bit_register_info *sleep_enable_reg_info;
+ u32 in_value;
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
+
+ if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
+ (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
+ ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X",
+ acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b));
+ return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
+ }
+
+ sleep_type_reg_info =
+ acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A);
+ sleep_enable_reg_info =
+ acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
+
+ /* Clear wake status */
+
+ status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Clear all fixed and general purpose status bits */
+
+ status = acpi_hw_clear_acpi_status();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * 1) Disable/Clear all GPEs
+ * 2) Enable all wakeup GPEs
+ */
+ status = acpi_hw_disable_all_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ acpi_gbl_system_awake_and_running = FALSE;
+
+ status = acpi_hw_enable_all_wakeup_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Execute the _GTS method */
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = sleep_state;
+
+ status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get current value of PM1A control */
+
+ status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+ "Entering sleep state [S%d]\n", sleep_state));
+
+ /* Clear SLP_EN and SLP_TYP fields */
+
+ PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
+ sleep_enable_reg_info->access_bit_mask);
+ PM1Bcontrol = PM1Acontrol;
+
+ /* Insert SLP_TYP bits */
+
+ PM1Acontrol |=
+ (acpi_gbl_sleep_type_a << sleep_type_reg_info->bit_position);
+ PM1Bcontrol |=
+ (acpi_gbl_sleep_type_b << sleep_type_reg_info->bit_position);
+
+ /*
+ * We split the writes of SLP_TYP and SLP_EN to workaround
+ * poorly implemented hardware.
+ */
+
+ /* Write #1: fill in SLP_TYP data */
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
+ PM1Acontrol);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
+ PM1Bcontrol);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Insert SLP_ENABLE bit */
+
+ PM1Acontrol |= sleep_enable_reg_info->access_bit_mask;
+ PM1Bcontrol |= sleep_enable_reg_info->access_bit_mask;
+
+ /* Write #2: SLP_TYP + SLP_EN */
+
+ ACPI_FLUSH_CPU_CACHE();
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
+ PM1Acontrol);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
+ PM1Bcontrol);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (sleep_state > ACPI_STATE_S3) {
+ /*
+ * We wanted to sleep > S3, but it didn't happen (by virtue of the
+ * fact that we are still executing!)
+ *
+ * Wait ten seconds, then try again. This is to get S4/S5 to work on
+ * all machines.
+ *
+ * We wait so long to allow chipsets that poll this reg very slowly to
+ * still read the right value. Ideally, this block would go
+ * away entirely.
+ */
+ acpi_os_stall(10000000);
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
+ sleep_enable_reg_info->
+ access_bit_mask);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Wait until we enter sleep state */
+
+ do {
+ status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS,
+ &in_value);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Spin until we wake */
+
+ } while (!in_value);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enter_sleep_state_s4bios
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform a S4 bios request.
+ * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
+{
+ u32 in_value;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
+
+ status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_hw_clear_acpi_status();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * 1) Disable/Clear all GPEs
+ * 2) Enable all wakeup GPEs
+ */
+ status = acpi_hw_disable_all_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ acpi_gbl_system_awake_and_running = FALSE;
+
+ status = acpi_hw_enable_all_wakeup_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_FLUSH_CPU_CACHE();
+
+ status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+ (u32) acpi_gbl_FADT.S4bios_request, 8);
+
+ do {
+ acpi_os_stall(1000);
+ status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } while (!in_value);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_leave_sleep_state_prep
+ *
+ * PARAMETERS: sleep_state - Which sleep state we are exiting
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
+ * sleep.
+ * Called with interrupts DISABLED.
+ *
+ ******************************************************************************/
+acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
+{
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+ acpi_status status;
+ struct acpi_bit_register_info *sleep_type_reg_info;
+ struct acpi_bit_register_info *sleep_enable_reg_info;
+ u32 PM1Acontrol;
+ u32 PM1Bcontrol;
+
+ ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
+
+ /*
+ * Set SLP_TYPE and SLP_EN to state S0.
+ * This is unclear from the ACPI Spec, but it is required
+ * by some machines.
+ */
+ status = acpi_get_sleep_type_data(ACPI_STATE_S0,
+ &acpi_gbl_sleep_type_a,
+ &acpi_gbl_sleep_type_b);
+ if (ACPI_SUCCESS(status)) {
+ sleep_type_reg_info =
+ acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A);
+ sleep_enable_reg_info =
+ acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
+
+ /* Get current value of PM1A control */
+
+ status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
+ &PM1Acontrol);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Clear SLP_EN and SLP_TYP fields */
+
+ PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
+ sleep_enable_reg_info->
+ access_bit_mask);
+ PM1Bcontrol = PM1Acontrol;
+
+ /* Insert SLP_TYP bits */
+
+ PM1Acontrol |=
+ (acpi_gbl_sleep_type_a << sleep_type_reg_info->
+ bit_position);
+ PM1Bcontrol |=
+ (acpi_gbl_sleep_type_b << sleep_type_reg_info->
+ bit_position);
+
+ /* Just ignore any errors */
+
+ (void)acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
+ PM1Acontrol);
+ (void)acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
+ PM1Bcontrol);
+ }
+ }
+
+ /* Execute the _BFS method */
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = sleep_state;
+
+ status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_leave_sleep_state
+ *
+ * PARAMETERS: sleep_state - Which sleep state we just exited
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
+ * Called with interrupts ENABLED.
+ *
+ ******************************************************************************/
+acpi_status acpi_leave_sleep_state(u8 sleep_state)
+{
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
+
+ /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
+
+ acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
+
+ /* Setup parameter object */
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+
+ /* Ignore any errors from these methods */
+
+ arg.integer.value = ACPI_SST_WAKING;
+ status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
+ }
+
+ /*
+ * GPEs must be enabled before _WAK is called as GPEs
+ * might get fired there
+ *
+ * Restore the GPEs:
+ * 1) Disable/Clear all GPEs
+ * 2) Enable all runtime GPEs
+ */
+ status = acpi_hw_disable_all_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ status = acpi_hw_enable_all_runtime_gpes();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ arg.integer.value = sleep_state;
+ status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
+ }
+ /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
+
+ /*
+ * Some BIOSes assume that WAK_STS will be cleared on resume and use
+ * it to determine whether the system is rebooting or resuming. Clear
+ * it for compatibility.
+ */
+ acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
+
+ acpi_gbl_system_awake_and_running = TRUE;
+
+ /* Enable power button */
+
+ (void)
+ acpi_set_register(acpi_gbl_fixed_event_info
+ [ACPI_EVENT_POWER_BUTTON].enable_register_id, 1);
+
+ (void)
+ acpi_set_register(acpi_gbl_fixed_event_info
+ [ACPI_EVENT_POWER_BUTTON].status_register_id, 1);
+
+ arg.integer.value = ACPI_SST_WORKING;
+ status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)
--- /dev/null
+
+/******************************************************************************
+ *
+ * Name: hwtimer.c - ACPI Power Management Timer Interface
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwtimer")
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_timer_resolution
+ *
+ * PARAMETERS: Resolution - Where the resolution is returned
+ *
+ * RETURN: Status and timer resolution
+ *
+ * DESCRIPTION: Obtains resolution of the ACPI PM Timer (24 or 32 bits).
+ *
+ ******************************************************************************/
+acpi_status acpi_get_timer_resolution(u32 * resolution)
+{
+ ACPI_FUNCTION_TRACE(acpi_get_timer_resolution);
+
+ if (!resolution) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) {
+ *resolution = 24;
+ } else {
+ *resolution = 32;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_timer
+ *
+ * PARAMETERS: Ticks - Where the timer value is returned
+ *
+ * RETURN: Status and current timer value (ticks)
+ *
+ * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks).
+ *
+ ******************************************************************************/
+acpi_status acpi_get_timer(u32 * ticks)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_timer);
+
+ if (!ticks) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status =
+ acpi_hw_low_level_read(32, ticks, &acpi_gbl_FADT.xpm_timer_block);
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_timer)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_timer_duration
+ *
+ * PARAMETERS: start_ticks - Starting timestamp
+ * end_ticks - End timestamp
+ * time_elapsed - Where the elapsed time is returned
+ *
+ * RETURN: Status and time_elapsed
+ *
+ * DESCRIPTION: Computes the time elapsed (in microseconds) between two
+ * PM Timer time stamps, taking into account the possibility of
+ * rollovers, the timer resolution, and timer frequency.
+ *
+ * The PM Timer's clock ticks at roughly 3.6 times per
+ * _microsecond_, and its clock continues through Cx state
+ * transitions (unlike many CPU timestamp counters) -- making it
+ * a versatile and accurate timer.
+ *
+ * Note that this function accommodates only a single timer
+ * rollover. Thus for 24-bit timers, this function should only
+ * be used for calculating durations less than ~4.6 seconds
+ * (~20 minutes for 32-bit timers) -- calculations below:
+ *
+ * 2**24 Ticks / 3,600,000 Ticks/Sec = 4.66 sec
+ * 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
+{
+ acpi_status status;
+ u32 delta_ticks;
+ acpi_integer quotient;
+
+ ACPI_FUNCTION_TRACE(acpi_get_timer_duration);
+
+ if (!time_elapsed) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Compute Tick Delta:
+ * Handle (max one) timer rollovers on 24-bit versus 32-bit timers.
+ */
+ if (start_ticks < end_ticks) {
+ delta_ticks = end_ticks - start_ticks;
+ } else if (start_ticks > end_ticks) {
+ if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) {
+
+ /* 24-bit Timer */
+
+ delta_ticks =
+ (((0x00FFFFFF - start_ticks) +
+ end_ticks) & 0x00FFFFFF);
+ } else {
+ /* 32-bit Timer */
+
+ delta_ticks = (0xFFFFFFFF - start_ticks) + end_ticks;
+ }
+ } else { /* start_ticks == end_ticks */
+
+ *time_elapsed = 0;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Compute Duration (Requires a 64-bit multiply and divide):
+ *
+ * time_elapsed = (delta_ticks * 1000000) / PM_TIMER_FREQUENCY;
+ */
+ status = acpi_ut_short_divide(((u64) delta_ticks) * 1000000,
+ PM_TIMER_FREQUENCY, "ient, NULL);
+
+ *time_elapsed = (u32) quotient;
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_timer_duration)
--- /dev/null
+
+/******************************************************************************
+ *
+ * Module Name: hwxface - Public ACPICA hardware interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_HARDWARE
+ACPI_MODULE_NAME("hwxface")
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_reset
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Set reset register in memory or IO space. Note: Does not
+ * support reset register in PCI config space, this must be
+ * handled separately.
+ *
+ ******************************************************************************/
+acpi_status acpi_reset(void)
+{
+ struct acpi_generic_address *reset_reg;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_reset);
+
+ reset_reg = &acpi_gbl_FADT.reset_register;
+
+ /* Check if the reset register is supported */
+
+ if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
+ !reset_reg->address) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ /* Write the reset value to the reset register */
+
+ status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_reset)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_read
+ *
+ * PARAMETERS: Value - Where the value is returned
+ * Reg - GAS register structure
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Read from either memory or IO space.
+ *
+ ******************************************************************************/
+acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg)
+{
+ u32 width;
+ u64 address;
+ acpi_status status;
+
+ ACPI_FUNCTION_NAME(acpi_read);
+
+ /*
+ * Must have a valid pointer to a GAS structure, and
+ * a non-zero address within. However, don't return an error
+ * because the PM1A/B code must not fail if B isn't present.
+ */
+ if (!reg) {
+ return (AE_OK);
+ }
+
+ /* Get a local copy of the address. Handles possible alignment issues */
+
+ ACPI_MOVE_64_TO_64(&address, ®->address);
+ if (!address) {
+ return (AE_OK);
+ }
+
+ /* Supported widths are 8/16/32 */
+
+ width = reg->bit_width;
+ if ((width != 8) && (width != 16) && (width != 32)) {
+ return (AE_SUPPORT);
+ }
+
+ /* Initialize entire 32-bit return value to zero */
+
+ *value = 0;
+
+ /*
+ * Two address spaces supported: Memory or IO.
+ * PCI_Config is not supported here because the GAS struct is insufficient
+ */
+ switch (reg->space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+
+ status = acpi_os_read_memory((acpi_physical_address) address,
+ value, width);
+ break;
+
+ case ACPI_ADR_SPACE_SYSTEM_IO:
+
+ status =
+ acpi_os_read_port((acpi_io_address) address, value, width);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Unsupported address space: %X", reg->space_id));
+ return (AE_BAD_PARAMETER);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n",
+ *value, width, ACPI_FORMAT_UINT64(address),
+ acpi_ut_get_region_name(reg->space_id)));
+
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_read)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_write
+ *
+ * PARAMETERS: Value - To be written
+ * Reg - GAS register structure
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Write to either memory or IO space.
+ *
+ ******************************************************************************/
+acpi_status acpi_write(u32 value, struct acpi_generic_address *reg)
+{
+ u32 width;
+ u64 address;
+ acpi_status status;
+
+ ACPI_FUNCTION_NAME(acpi_write);
+
+ /*
+ * Must have a valid pointer to a GAS structure, and
+ * a non-zero address within. However, don't return an error
+ * because the PM1A/B code must not fail if B isn't present.
+ */
+ if (!reg) {
+ return (AE_OK);
+ }
+
+ /* Get a local copy of the address. Handles possible alignment issues */
+
+ ACPI_MOVE_64_TO_64(&address, ®->address);
+ if (!address) {
+ return (AE_OK);
+ }
+
+ /* Supported widths are 8/16/32 */
+
+ width = reg->bit_width;
+ if ((width != 8) && (width != 16) && (width != 32)) {
+ return (AE_SUPPORT);
+ }
+
+ /*
+ * Two address spaces supported: Memory or IO.
+ * PCI_Config is not supported here because the GAS struct is insufficient
+ */
+ switch (reg->space_id) {
+ case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+
+ status = acpi_os_write_memory((acpi_physical_address) address,
+ value, width);
+ break;
+
+ case ACPI_ADR_SPACE_SYSTEM_IO:
+
+ status = acpi_os_write_port((acpi_io_address) address, value,
+ width);
+ break;
+
+ default:
+ ACPI_ERROR((AE_INFO,
+ "Unsupported address space: %X", reg->space_id));
+ return (AE_BAD_PARAMETER);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
+ value, width, ACPI_FORMAT_UINT64(address),
+ acpi_ut_get_region_name(reg->space_id)));
+
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_write)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_register_unlocked
+ *
+ * PARAMETERS: register_id - ID of ACPI bit_register to access
+ * return_value - Value that was read from the register
+ *
+ * RETURN: Status and the value read from specified Register. Value
+ * returned is normalized to bit0 (is shifted all the way right)
+ *
+ * DESCRIPTION: ACPI bit_register read function. Does not acquire the HW lock.
+ *
+ ******************************************************************************/
+acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value)
+{
+ u32 register_value = 0;
+ struct acpi_bit_register_info *bit_reg_info;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_register_unlocked);
+
+ /* Get the info structure corresponding to the requested ACPI Register */
+
+ bit_reg_info = acpi_hw_get_bit_register_info(register_id);
+ if (!bit_reg_info) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Read from the register */
+
+ status = acpi_hw_register_read(bit_reg_info->parent_register,
+ ®ister_value);
+
+ if (ACPI_SUCCESS(status)) {
+
+ /* Normalize the value that was read */
+
+ register_value =
+ ((register_value & bit_reg_info->access_bit_mask)
+ >> bit_reg_info->bit_position);
+
+ *return_value = register_value;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO, "Read value %8.8X register %X\n",
+ register_value,
+ bit_reg_info->parent_register));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_register_unlocked)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_register
+ *
+ * PARAMETERS: register_id - ID of ACPI bit_register to access
+ * return_value - Value that was read from the register
+ *
+ * RETURN: Status and the value read from specified Register. Value
+ * returned is normalized to bit0 (is shifted all the way right)
+ *
+ * DESCRIPTION: ACPI bit_register read function.
+ *
+ ******************************************************************************/
+acpi_status acpi_get_register(u32 register_id, u32 *return_value)
+{
+ acpi_status status;
+ acpi_cpu_flags flags;
+
+ flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+ status = acpi_get_register_unlocked(register_id, return_value);
+ acpi_os_release_lock(acpi_gbl_hardware_lock, flags);
+
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_register)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_register
+ *
+ * PARAMETERS: register_id - ID of ACPI bit_register to access
+ * Value - (only used on write) value to write to the
+ * Register, NOT pre-normalized to the bit pos
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: ACPI Bit Register write function.
+ *
+ ******************************************************************************/
+acpi_status acpi_set_register(u32 register_id, u32 value)
+{
+ u32 register_value = 0;
+ struct acpi_bit_register_info *bit_reg_info;
+ acpi_status status;
+ acpi_cpu_flags lock_flags;
+
+ ACPI_FUNCTION_TRACE_U32(acpi_set_register, register_id);
+
+ /* Get the info structure corresponding to the requested ACPI Register */
+
+ bit_reg_info = acpi_hw_get_bit_register_info(register_id);
+ if (!bit_reg_info) {
+ ACPI_ERROR((AE_INFO, "Bad ACPI HW RegisterId: %X",
+ register_id));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
+
+ /* Always do a register read first so we can insert the new bits */
+
+ status = acpi_hw_register_read(bit_reg_info->parent_register,
+ ®ister_value);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /*
+ * Decode the Register ID
+ * Register ID = [Register block ID] | [bit ID]
+ *
+ * Check bit ID to fine locate Register offset.
+ * Check Mask to determine Register offset, and then read-write.
+ */
+ switch (bit_reg_info->parent_register) {
+ case ACPI_REGISTER_PM1_STATUS:
+
+ /*
+ * Status Registers are different from the rest. Clear by
+ * writing 1, and writing 0 has no effect. So, the only relevant
+ * information is the single bit we're interested in, all others should
+ * be written as 0 so they will be left unchanged.
+ */
+ value = ACPI_REGISTER_PREPARE_BITS(value,
+ bit_reg_info->bit_position,
+ bit_reg_info->
+ access_bit_mask);
+ if (value) {
+ status =
+ acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
+ (u16) value);
+ register_value = 0;
+ }
+ break;
+
+ case ACPI_REGISTER_PM1_ENABLE:
+
+ ACPI_REGISTER_INSERT_VALUE(register_value,
+ bit_reg_info->bit_position,
+ bit_reg_info->access_bit_mask,
+ value);
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1_ENABLE,
+ (u16) register_value);
+ break;
+
+ case ACPI_REGISTER_PM1_CONTROL:
+
+ /*
+ * Write the PM1 Control register.
+ * Note that at this level, the fact that there are actually TWO
+ * registers (A and B - and B may not exist) is abstracted.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_IO, "PM1 control: Read %X\n",
+ register_value));
+
+ ACPI_REGISTER_INSERT_VALUE(register_value,
+ bit_reg_info->bit_position,
+ bit_reg_info->access_bit_mask,
+ value);
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
+ (u16) register_value);
+ break;
+
+ case ACPI_REGISTER_PM2_CONTROL:
+
+ status = acpi_hw_register_read(ACPI_REGISTER_PM2_CONTROL,
+ ®ister_value);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "PM2 control: Read %X from %8.8X%8.8X\n",
+ register_value,
+ ACPI_FORMAT_UINT64(acpi_gbl_FADT.
+ xpm2_control_block.
+ address)));
+
+ ACPI_REGISTER_INSERT_VALUE(register_value,
+ bit_reg_info->bit_position,
+ bit_reg_info->access_bit_mask,
+ value);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "About to write %4.4X to %8.8X%8.8X\n",
+ register_value,
+ ACPI_FORMAT_UINT64(acpi_gbl_FADT.
+ xpm2_control_block.
+ address)));
+
+ status = acpi_hw_register_write(ACPI_REGISTER_PM2_CONTROL,
+ (u8) (register_value));
+ break;
+
+ default:
+ break;
+ }
+
+ unlock_and_exit:
+
+ acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
+
+ /* Normalize the value that was read */
+
+ ACPI_DEBUG_EXEC(register_value =
+ ((register_value & bit_reg_info->access_bit_mask) >>
+ bit_reg_info->bit_position));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_IO,
+ "Set bits: %8.8X actual %8.8X register %X\n", value,
+ register_value, bit_reg_info->parent_register));
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_register)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_sleep_type_data
+ *
+ * PARAMETERS: sleep_state - Numeric sleep state
+ * *sleep_type_a - Where SLP_TYPa is returned
+ * *sleep_type_b - Where SLP_TYPb is returned
+ *
+ * RETURN: Status - ACPI status
+ *
+ * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep
+ * state.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
+{
+ acpi_status status = AE_OK;
+ struct acpi_evaluate_info *info;
+
+ ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data);
+
+ /* Validate parameters */
+
+ if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Allocate the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->pathname =
+ ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
+
+ /* Evaluate the namespace object containing the values for this state */
+
+ status = acpi_ns_evaluate(info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "%s while evaluating SleepState [%s]\n",
+ acpi_format_exception(status),
+ info->pathname));
+
+ goto cleanup;
+ }
+
+ /* Must have a return object */
+
+ if (!info->return_object) {
+ ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
+ info->pathname));
+ status = AE_NOT_EXIST;
+ }
+
+ /* It must be of type Package */
+
+ else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) {
+ ACPI_ERROR((AE_INFO,
+ "Sleep State return object is not a Package"));
+ status = AE_AML_OPERAND_TYPE;
+ }
+
+ /*
+ * The package must have at least two elements. NOTE (March 2005): This
+ * goes against the current ACPI spec which defines this object as a
+ * package with one encoded DWORD element. However, existing practice
+ * by BIOS vendors seems to be to have 2 or more elements, at least
+ * one per sleep type (A/B).
+ */
+ else if (info->return_object->package.count < 2) {
+ ACPI_ERROR((AE_INFO,
+ "Sleep State return package does not have at least two elements"));
+ status = AE_AML_NO_OPERAND;
+ }
+
+ /* The first two elements must both be of type Integer */
+
+ else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0])
+ != ACPI_TYPE_INTEGER) ||
+ (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1])
+ != ACPI_TYPE_INTEGER)) {
+ ACPI_ERROR((AE_INFO,
+ "Sleep State return package elements are not both Integers (%s, %s)",
+ acpi_ut_get_object_type_name(info->return_object->
+ package.elements[0]),
+ acpi_ut_get_object_type_name(info->return_object->
+ package.elements[1])));
+ status = AE_AML_OPERAND_TYPE;
+ } else {
+ /* Valid _Sx_ package size, type, and value */
+
+ *sleep_type_a = (u8)
+ (info->return_object->package.elements[0])->integer.value;
+ *sleep_type_b = (u8)
+ (info->return_object->package.elements[1])->integer.value;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While evaluating SleepState [%s], bad Sleep object %p type %s",
+ info->pathname, info->return_object,
+ acpi_ut_get_object_type_name(info->
+ return_object)));
+ }
+
+ acpi_ut_remove_reference(info->return_object);
+
+ cleanup:
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data)
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nsaccess - Top-level functions for accessing ACPI namespace
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsaccess")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_root_initialize
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocate and initialize the default root named objects
+ *
+ * MUTEX: Locks namespace for entire execution
+ *
+ ******************************************************************************/
+acpi_status acpi_ns_root_initialize(void)
+{
+ acpi_status status;
+ const struct acpi_predefined_names *init_val = NULL;
+ struct acpi_namespace_node *new_node;
+ union acpi_operand_object *obj_desc;
+ acpi_string val = NULL;
+
+ ACPI_FUNCTION_TRACE(ns_root_initialize);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * The global root ptr is initially NULL, so a non-NULL value indicates
+ * that acpi_ns_root_initialize() has already been called; just return.
+ */
+ if (acpi_gbl_root_node) {
+ status = AE_OK;
+ goto unlock_and_exit;
+ }
+
+ /*
+ * Tell the rest of the subsystem that the root is initialized
+ * (This is OK because the namespace is locked)
+ */
+ acpi_gbl_root_node = &acpi_gbl_root_node_struct;
+
+ /* Enter the pre-defined names in the name table */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Entering predefined entries into namespace\n"));
+
+ for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
+
+ /* _OSI is optional for now, will be permanent later */
+
+ if (!ACPI_STRCMP(init_val->name, "_OSI")
+ && !acpi_gbl_create_osi_method) {
+ continue;
+ }
+
+ status = acpi_ns_lookup(NULL, init_val->name, init_val->type,
+ ACPI_IMODE_LOAD_PASS2,
+ ACPI_NS_NO_UPSEARCH, NULL, &new_node);
+
+ if (ACPI_FAILURE(status) || (!new_node)) { /* Must be on same line for code converter */
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not create predefined name %s",
+ init_val->name));
+ }
+
+ /*
+ * Name entered successfully.
+ * If entry in pre_defined_names[] specifies an
+ * initial value, create the initial value.
+ */
+ if (init_val->val) {
+ status = acpi_os_predefined_override(init_val, &val);
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR((AE_INFO,
+ "Could not override predefined %s",
+ init_val->name));
+ }
+
+ if (!val) {
+ val = init_val->val;
+ }
+
+ /*
+ * Entry requests an initial value, allocate a
+ * descriptor for it.
+ */
+ obj_desc =
+ acpi_ut_create_internal_object(init_val->type);
+ if (!obj_desc) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
+ }
+
+ /*
+ * Convert value string from table entry to
+ * internal representation. Only types actually
+ * used for initial values are implemented here.
+ */
+ switch (init_val->type) {
+ case ACPI_TYPE_METHOD:
+ obj_desc->method.param_count =
+ (u8) ACPI_TO_INTEGER(val);
+ obj_desc->common.flags |= AOPOBJ_DATA_VALID;
+
+#if defined (ACPI_ASL_COMPILER)
+
+ /* Save the parameter count for the i_aSL compiler */
+
+ new_node->value = obj_desc->method.param_count;
+#else
+ /* Mark this as a very SPECIAL method */
+
+ obj_desc->method.method_flags =
+ AML_METHOD_INTERNAL_ONLY;
+ obj_desc->method.implementation =
+ acpi_ut_osi_implementation;
+#endif
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ obj_desc->integer.value = ACPI_TO_INTEGER(val);
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ /*
+ * Build an object around the static string
+ */
+ obj_desc->string.length =
+ (u32) ACPI_STRLEN(val);
+ obj_desc->string.pointer = val;
+ obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
+ break;
+
+ case ACPI_TYPE_MUTEX:
+
+ obj_desc->mutex.node = new_node;
+ obj_desc->mutex.sync_level =
+ (u8) (ACPI_TO_INTEGER(val) - 1);
+
+ /* Create a mutex */
+
+ status =
+ acpi_os_create_mutex(&obj_desc->mutex.
+ os_mutex);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference(obj_desc);
+ goto unlock_and_exit;
+ }
+
+ /* Special case for ACPI Global Lock */
+
+ if (ACPI_STRCMP(init_val->name, "_GL_") == 0) {
+ acpi_gbl_global_lock_mutex = obj_desc;
+
+ /* Create additional counting semaphore for global lock */
+
+ status =
+ acpi_os_create_semaphore(1, 0,
+ &acpi_gbl_global_lock_semaphore);
+ if (ACPI_FAILURE(status)) {
+ acpi_ut_remove_reference
+ (obj_desc);
+ goto unlock_and_exit;
+ }
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Unsupported initial type value %X",
+ init_val->type));
+ acpi_ut_remove_reference(obj_desc);
+ obj_desc = NULL;
+ continue;
+ }
+
+ /* Store pointer to value descriptor in the Node */
+
+ status = acpi_ns_attach_object(new_node, obj_desc,
+ ACPI_GET_OBJECT_TYPE
+ (obj_desc));
+
+ /* Remove local reference to the object */
+
+ acpi_ut_remove_reference(obj_desc);
+ }
+ }
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+ /* Save a handle to "_GPE", it is always present */
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH,
+ &acpi_gbl_fadt_gpe_device);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_lookup
+ *
+ * PARAMETERS: scope_info - Current scope info block
+ * Pathname - Search pathname, in internal format
+ * (as represented in the AML stream)
+ * Type - Type associated with name
+ * interpreter_mode - IMODE_LOAD_PASS2 => add name if not found
+ * Flags - Flags describing the search restrictions
+ * walk_state - Current state of the walk
+ * return_node - Where the Node is placed (if found
+ * or created successfully)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Find or enter the passed name in the name space.
+ * Log an error if name not found in Exec mode.
+ *
+ * MUTEX: Assumes namespace is locked.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_lookup(union acpi_generic_state *scope_info,
+ char *pathname,
+ acpi_object_type type,
+ acpi_interpreter_mode interpreter_mode,
+ u32 flags,
+ struct acpi_walk_state *walk_state,
+ struct acpi_namespace_node **return_node)
+{
+ acpi_status status;
+ char *path = pathname;
+ struct acpi_namespace_node *prefix_node;
+ struct acpi_namespace_node *current_node = NULL;
+ struct acpi_namespace_node *this_node = NULL;
+ u32 num_segments;
+ u32 num_carats;
+ acpi_name simple_name;
+ acpi_object_type type_to_check_for;
+ acpi_object_type this_search_type;
+ u32 search_parent_flag = ACPI_NS_SEARCH_PARENT;
+ u32 local_flags;
+
+ ACPI_FUNCTION_TRACE(ns_lookup);
+
+ if (!return_node) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT);
+ *return_node = ACPI_ENTRY_NOT_FOUND;
+ acpi_gbl_ns_lookup_count++;
+
+ if (!acpi_gbl_root_node) {
+ return_ACPI_STATUS(AE_NO_NAMESPACE);
+ }
+
+ /*
+ * Get the prefix scope.
+ * A null scope means use the root scope
+ */
+ if ((!scope_info) || (!scope_info->scope.node)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Null scope prefix, using root node (%p)\n",
+ acpi_gbl_root_node));
+
+ prefix_node = acpi_gbl_root_node;
+ } else {
+ prefix_node = scope_info->scope.node;
+ if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) !=
+ ACPI_DESC_TYPE_NAMED) {
+ ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]",
+ prefix_node,
+ acpi_ut_get_descriptor_name(prefix_node)));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) {
+ /*
+ * This node might not be a actual "scope" node (such as a
+ * Device/Method, etc.) It could be a Package or other object node.
+ * Backup up the tree to find the containing scope node.
+ */
+ while (!acpi_ns_opens_scope(prefix_node->type) &&
+ prefix_node->type != ACPI_TYPE_ANY) {
+ prefix_node =
+ acpi_ns_get_parent_node(prefix_node);
+ }
+ }
+ }
+
+ /* Save type TBD: may be no longer necessary */
+
+ type_to_check_for = type;
+
+ /*
+ * Begin examination of the actual pathname
+ */
+ if (!pathname) {
+
+ /* A Null name_path is allowed and refers to the root */
+
+ num_segments = 0;
+ this_node = acpi_gbl_root_node;
+ path = "";
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Null Pathname (Zero segments), Flags=%X\n",
+ flags));
+ } else {
+ /*
+ * Name pointer is valid (and must be in internal name format)
+ *
+ * Check for scope prefixes:
+ *
+ * As represented in the AML stream, a namepath consists of an
+ * optional scope prefix followed by a name segment part.
+ *
+ * If present, the scope prefix is either a Root Prefix (in
+ * which case the name is fully qualified), or one or more
+ * Parent Prefixes (in which case the name's scope is relative
+ * to the current scope).
+ */
+ if (*path == (u8) AML_ROOT_PREFIX) {
+
+ /* Pathname is fully qualified, start from the root */
+
+ this_node = acpi_gbl_root_node;
+ search_parent_flag = ACPI_NS_NO_UPSEARCH;
+
+ /* Point to name segment part */
+
+ path++;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Path is absolute from root [%p]\n",
+ this_node));
+ } else {
+ /* Pathname is relative to current scope, start there */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Searching relative to prefix scope [%4.4s] (%p)\n",
+ acpi_ut_get_node_name(prefix_node),
+ prefix_node));
+
+ /*
+ * Handle multiple Parent Prefixes (carat) by just getting
+ * the parent node for each prefix instance.
+ */
+ this_node = prefix_node;
+ num_carats = 0;
+ while (*path == (u8) AML_PARENT_PREFIX) {
+
+ /* Name is fully qualified, no search rules apply */
+
+ search_parent_flag = ACPI_NS_NO_UPSEARCH;
+ /*
+ * Point past this prefix to the name segment
+ * part or the next Parent Prefix
+ */
+ path++;
+
+ /* Backup to the parent node */
+
+ num_carats++;
+ this_node = acpi_ns_get_parent_node(this_node);
+ if (!this_node) {
+
+ /* Current scope has no parent scope */
+
+ ACPI_ERROR((AE_INFO,
+ "ACPI path has too many parent prefixes (^) - reached beyond root node"));
+ return_ACPI_STATUS(AE_NOT_FOUND);
+ }
+ }
+
+ if (search_parent_flag == ACPI_NS_NO_UPSEARCH) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Search scope is [%4.4s], path has %d carat(s)\n",
+ acpi_ut_get_node_name
+ (this_node), num_carats));
+ }
+ }
+
+ /*
+ * Determine the number of ACPI name segments in this pathname.
+ *
+ * The segment part consists of either:
+ * - A Null name segment (0)
+ * - A dual_name_prefix followed by two 4-byte name segments
+ * - A multi_name_prefix followed by a byte indicating the
+ * number of segments and the segments themselves.
+ * - A single 4-byte name segment
+ *
+ * Examine the name prefix opcode, if any, to determine the number of
+ * segments.
+ */
+ switch (*path) {
+ case 0:
+ /*
+ * Null name after a root or parent prefixes. We already
+ * have the correct target node and there are no name segments.
+ */
+ num_segments = 0;
+ type = this_node->type;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Prefix-only Pathname (Zero name segments), Flags=%X\n",
+ flags));
+ break;
+
+ case AML_DUAL_NAME_PREFIX:
+
+ /* More than one name_seg, search rules do not apply */
+
+ search_parent_flag = ACPI_NS_NO_UPSEARCH;
+
+ /* Two segments, point to first name segment */
+
+ num_segments = 2;
+ path++;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Dual Pathname (2 segments, Flags=%X)\n",
+ flags));
+ break;
+
+ case AML_MULTI_NAME_PREFIX_OP:
+
+ /* More than one name_seg, search rules do not apply */
+
+ search_parent_flag = ACPI_NS_NO_UPSEARCH;
+
+ /* Extract segment count, point to first name segment */
+
+ path++;
+ num_segments = (u32) (u8) * path;
+ path++;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Multi Pathname (%d Segments, Flags=%X)\n",
+ num_segments, flags));
+ break;
+
+ default:
+ /*
+ * Not a Null name, no Dual or Multi prefix, hence there is
+ * only one name segment and Pathname is already pointing to it.
+ */
+ num_segments = 1;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Simple Pathname (1 segment, Flags=%X)\n",
+ flags));
+ break;
+ }
+
+ ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path));
+ }
+
+ /*
+ * Search namespace for each segment of the name. Loop through and
+ * verify (or add to the namespace) each name segment.
+ *
+ * The object type is significant only at the last name
+ * segment. (We don't care about the types along the path, only
+ * the type of the final target object.)
+ */
+ this_search_type = ACPI_TYPE_ANY;
+ current_node = this_node;
+ while (num_segments && current_node) {
+ num_segments--;
+ if (!num_segments) {
+ /*
+ * This is the last segment, enable typechecking
+ */
+ this_search_type = type;
+
+ /*
+ * Only allow automatic parent search (search rules) if the caller
+ * requested it AND we have a single, non-fully-qualified name_seg
+ */
+ if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) &&
+ (flags & ACPI_NS_SEARCH_PARENT)) {
+ local_flags |= ACPI_NS_SEARCH_PARENT;
+ }
+
+ /* Set error flag according to caller */
+
+ if (flags & ACPI_NS_ERROR_IF_FOUND) {
+ local_flags |= ACPI_NS_ERROR_IF_FOUND;
+ }
+ }
+
+ /* Extract one ACPI name from the front of the pathname */
+
+ ACPI_MOVE_32_TO_32(&simple_name, path);
+
+ /* Try to find the single (4 character) ACPI name */
+
+ status =
+ acpi_ns_search_and_enter(simple_name, walk_state,
+ current_node, interpreter_mode,
+ this_search_type, local_flags,
+ &this_node);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_NOT_FOUND) {
+
+ /* Name not found in ACPI namespace */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Name [%4.4s] not found in scope [%4.4s] %p\n",
+ (char *)&simple_name,
+ (char *)¤t_node->name,
+ current_node));
+ }
+
+ *return_node = this_node;
+ return_ACPI_STATUS(status);
+ }
+
+ /* More segments to follow? */
+
+ if (num_segments > 0) {
+ /*
+ * If we have an alias to an object that opens a scope (such as a
+ * device or processor), we need to dereference the alias here so that
+ * we can access any children of the original node (via the remaining
+ * segments).
+ */
+ if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) {
+ if (!this_node->object) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
+ }
+
+ if (acpi_ns_opens_scope
+ (((struct acpi_namespace_node *)this_node->
+ object)->type)) {
+ this_node =
+ (struct acpi_namespace_node *)
+ this_node->object;
+ }
+ }
+ }
+
+ /* Special handling for the last segment (num_segments == 0) */
+
+ else {
+ /*
+ * Sanity typecheck of the target object:
+ *
+ * If 1) This is the last segment (num_segments == 0)
+ * 2) And we are looking for a specific type
+ * (Not checking for TYPE_ANY)
+ * 3) Which is not an alias
+ * 4) Which is not a local type (TYPE_SCOPE)
+ * 5) And the type of target object is known (not TYPE_ANY)
+ * 6) And target object does not match what we are looking for
+ *
+ * Then we have a type mismatch. Just warn and ignore it.
+ */
+ if ((type_to_check_for != ACPI_TYPE_ANY) &&
+ (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) &&
+ (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS)
+ && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE)
+ && (this_node->type != ACPI_TYPE_ANY)
+ && (this_node->type != type_to_check_for)) {
+
+ /* Complain about a type mismatch */
+
+ ACPI_WARNING((AE_INFO,
+ "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)",
+ ACPI_CAST_PTR(char, &simple_name),
+ acpi_ut_get_type_name(this_node->
+ type),
+ acpi_ut_get_type_name
+ (type_to_check_for)));
+ }
+
+ /*
+ * If this is the last name segment and we are not looking for a
+ * specific type, but the type of found object is known, use that type
+ * to (later) see if it opens a scope.
+ */
+ if (type == ACPI_TYPE_ANY) {
+ type = this_node->type;
+ }
+ }
+
+ /* Point to next name segment and make this node current */
+
+ path += ACPI_NAME_SIZE;
+ current_node = this_node;
+ }
+
+ /*
+ * Always check if we need to open a new scope
+ */
+ if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) {
+ /*
+ * If entry is a type which opens a scope, push the new scope on the
+ * scope stack.
+ */
+ if (acpi_ns_opens_scope(type)) {
+ status =
+ acpi_ds_scope_stack_push(this_node, type,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ }
+
+ *return_node = this_node;
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nsalloc - Namespace allocation and deletion utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsalloc")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_create_node
+ *
+ * PARAMETERS: Name - Name of the new node (4 char ACPI name)
+ *
+ * RETURN: New namespace node (Null on failure)
+ *
+ * DESCRIPTION: Create a namespace node
+ *
+ ******************************************************************************/
+struct acpi_namespace_node *acpi_ns_create_node(u32 name)
+{
+ struct acpi_namespace_node *node;
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ u32 temp;
+#endif
+
+ ACPI_FUNCTION_TRACE(ns_create_node);
+
+ node = acpi_os_acquire_object(acpi_gbl_namespace_cache);
+ if (!node) {
+ return_PTR(NULL);
+ }
+
+ ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ temp =
+ acpi_gbl_ns_node_list->total_allocated -
+ acpi_gbl_ns_node_list->total_freed;
+ if (temp > acpi_gbl_ns_node_list->max_occupied) {
+ acpi_gbl_ns_node_list->max_occupied = temp;
+ }
+#endif
+
+ node->name.integer = name;
+ ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
+ return_PTR(node);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_delete_node
+ *
+ * PARAMETERS: Node - Node to be deleted
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete a namespace node
+ *
+ ******************************************************************************/
+
+void acpi_ns_delete_node(struct acpi_namespace_node *node)
+{
+ struct acpi_namespace_node *parent_node;
+ struct acpi_namespace_node *prev_node;
+ struct acpi_namespace_node *next_node;
+
+ ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node);
+
+ parent_node = acpi_ns_get_parent_node(node);
+
+ prev_node = NULL;
+ next_node = parent_node->child;
+
+ /* Find the node that is the previous peer in the parent's child list */
+
+ while (next_node != node) {
+ prev_node = next_node;
+ next_node = prev_node->peer;
+ }
+
+ if (prev_node) {
+
+ /* Node is not first child, unlink it */
+
+ prev_node->peer = next_node->peer;
+ if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+ prev_node->flags |= ANOBJ_END_OF_PEER_LIST;
+ }
+ } else {
+ /* Node is first child (has no previous peer) */
+
+ if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+
+ /* No peers at all */
+
+ parent_node->child = NULL;
+ } else { /* Link peer list to parent */
+
+ parent_node->child = next_node->peer;
+ }
+ }
+
+ ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
+
+ /*
+ * Detach an object if there is one, then delete the node
+ */
+ acpi_ns_detach_object(node);
+ (void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_install_node
+ *
+ * PARAMETERS: walk_state - Current state of the walk
+ * parent_node - The parent of the new Node
+ * Node - The new Node to install
+ * Type - ACPI object type of the new Node
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Initialize a new namespace node and install it amongst
+ * its peers.
+ *
+ * Note: Current namespace lookup is linear search. This appears
+ * to be sufficient as namespace searches consume only a small
+ * fraction of the execution time of the ACPI subsystem.
+ *
+ ******************************************************************************/
+
+void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parent_node, /* Parent */
+ struct acpi_namespace_node *node, /* New Child */
+ acpi_object_type type)
+{
+ acpi_owner_id owner_id = 0;
+ struct acpi_namespace_node *child_node;
+
+ ACPI_FUNCTION_TRACE(ns_install_node);
+
+ /*
+ * Get the owner ID from the Walk state
+ * The owner ID is used to track table deletion and
+ * deletion of objects created by methods
+ */
+ if (walk_state) {
+ owner_id = walk_state->owner_id;
+ }
+
+ /* Link the new entry into the parent and existing children */
+
+ child_node = parent_node->child;
+ if (!child_node) {
+ parent_node->child = node;
+ node->flags |= ANOBJ_END_OF_PEER_LIST;
+ node->peer = parent_node;
+ } else {
+ while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) {
+ child_node = child_node->peer;
+ }
+
+ child_node->peer = node;
+
+ /* Clear end-of-list flag */
+
+ child_node->flags &= ~ANOBJ_END_OF_PEER_LIST;
+ node->flags |= ANOBJ_END_OF_PEER_LIST;
+ node->peer = parent_node;
+ }
+
+ /* Init the new entry */
+
+ node->owner_id = owner_id;
+ node->type = (u8) type;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n",
+ acpi_ut_get_node_name(node),
+ acpi_ut_get_type_name(node->type), node, owner_id,
+ acpi_ut_get_node_name(parent_node),
+ acpi_ut_get_type_name(parent_node->type),
+ parent_node));
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_delete_children
+ *
+ * PARAMETERS: parent_node - Delete this objects children
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Delete all children of the parent object. In other words,
+ * deletes a "scope".
+ *
+ ******************************************************************************/
+
+void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
+{
+ struct acpi_namespace_node *child_node;
+ struct acpi_namespace_node *next_node;
+ u8 flags;
+
+ ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node);
+
+ if (!parent_node) {
+ return_VOID;
+ }
+
+ /* If no children, all done! */
+
+ child_node = parent_node->child;
+ if (!child_node) {
+ return_VOID;
+ }
+
+ /*
+ * Deallocate all children at this level
+ */
+ do {
+
+ /* Get the things we need */
+
+ next_node = child_node->peer;
+ flags = child_node->flags;
+
+ /* Grandchildren should have all been deleted already */
+
+ if (child_node->child) {
+ ACPI_ERROR((AE_INFO, "Found a grandchild! P=%p C=%p",
+ parent_node, child_node));
+ }
+
+ /* Now we can free this child object */
+
+ ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Object %p, Remaining %X\n", child_node,
+ acpi_gbl_current_node_count));
+
+ /*
+ * Detach an object if there is one, then free the child node
+ */
+ acpi_ns_detach_object(child_node);
+
+ /* Now we can delete the node */
+
+ (void)acpi_os_release_object(acpi_gbl_namespace_cache,
+ child_node);
+
+ /* And move on to the next child in the list */
+
+ child_node = next_node;
+
+ } while (!(flags & ANOBJ_END_OF_PEER_LIST));
+
+ /* Clear the parent's child pointer */
+
+ parent_node->child = NULL;
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_delete_namespace_subtree
+ *
+ * PARAMETERS: parent_node - Root of the subtree to be deleted
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Delete a subtree of the namespace. This includes all objects
+ * stored within the subtree.
+ *
+ ******************************************************************************/
+
+void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
+{
+ struct acpi_namespace_node *child_node = NULL;
+ u32 level = 1;
+
+ ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree);
+
+ if (!parent_node) {
+ return_VOID;
+ }
+
+ /*
+ * Traverse the tree of objects until we bubble back up
+ * to where we started.
+ */
+ while (level > 0) {
+
+ /* Get the next node in this scope (NULL if none) */
+
+ child_node =
+ acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
+ child_node);
+ if (child_node) {
+
+ /* Found a child node - detach any attached object */
+
+ acpi_ns_detach_object(child_node);
+
+ /* Check if this node has any children */
+
+ if (acpi_ns_get_next_node
+ (ACPI_TYPE_ANY, child_node, NULL)) {
+ /*
+ * There is at least one child of this node,
+ * visit the node
+ */
+ level++;
+ parent_node = child_node;
+ child_node = NULL;
+ }
+ } else {
+ /*
+ * No more children of this parent node.
+ * Move up to the grandparent.
+ */
+ level--;
+
+ /*
+ * Now delete all of the children of this parent
+ * all at the same time.
+ */
+ acpi_ns_delete_children(parent_node);
+
+ /* New "last child" is this parent node */
+
+ child_node = parent_node;
+
+ /* Move up the tree to the grandparent */
+
+ parent_node = acpi_ns_get_parent_node(parent_node);
+ }
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_delete_namespace_by_owner
+ *
+ * PARAMETERS: owner_id - All nodes with this owner will be deleted
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Delete entries within the namespace that are owned by a
+ * specific ID. Used to delete entire ACPI tables. All
+ * reference counts are updated.
+ *
+ * MUTEX: Locks namespace during deletion walk.
+ *
+ ******************************************************************************/
+
+void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
+{
+ struct acpi_namespace_node *child_node;
+ struct acpi_namespace_node *deletion_node;
+ struct acpi_namespace_node *parent_node;
+ u32 level;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id);
+
+ if (owner_id == 0) {
+ return_VOID;
+ }
+
+ /* Lock namespace for possible update */
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+
+ deletion_node = NULL;
+ parent_node = acpi_gbl_root_node;
+ child_node = NULL;
+ level = 1;
+
+ /*
+ * Traverse the tree of nodes until we bubble back up
+ * to where we started.
+ */
+ while (level > 0) {
+ /*
+ * Get the next child of this parent node. When child_node is NULL,
+ * the first child of the parent is returned
+ */
+ child_node =
+ acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
+ child_node);
+
+ if (deletion_node) {
+ acpi_ns_delete_children(deletion_node);
+ acpi_ns_delete_node(deletion_node);
+ deletion_node = NULL;
+ }
+
+ if (child_node) {
+ if (child_node->owner_id == owner_id) {
+
+ /* Found a matching child node - detach any attached object */
+
+ acpi_ns_detach_object(child_node);
+ }
+
+ /* Check if this node has any children */
+
+ if (acpi_ns_get_next_node
+ (ACPI_TYPE_ANY, child_node, NULL)) {
+ /*
+ * There is at least one child of this node,
+ * visit the node
+ */
+ level++;
+ parent_node = child_node;
+ child_node = NULL;
+ } else if (child_node->owner_id == owner_id) {
+ deletion_node = child_node;
+ }
+ } else {
+ /*
+ * No more children of this parent node.
+ * Move up to the grandparent.
+ */
+ level--;
+ if (level != 0) {
+ if (parent_node->owner_id == owner_id) {
+ deletion_node = parent_node;
+ }
+ }
+
+ /* New "last child" is this parent node */
+
+ child_node = parent_node;
+
+ /* Move up the tree to the grandparent */
+
+ parent_node = acpi_ns_get_parent_node(parent_node);
+ }
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsdump - table dumping routines for debug
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsdump")
+
+/* Local prototypes */
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+void acpi_ns_dump_root_devices(void);
+
+static acpi_status
+acpi_ns_dump_one_device(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+#endif
+
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_print_pathname
+ *
+ * PARAMETERS: num_segments - Number of ACPI name segments
+ * Pathname - The compressed (internal) path
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print an object's full namespace pathname
+ *
+ ******************************************************************************/
+
+void acpi_ns_print_pathname(u32 num_segments, char *pathname)
+{
+ u32 i;
+
+ ACPI_FUNCTION_NAME(ns_print_pathname);
+
+ if (!(acpi_dbg_level & ACPI_LV_NAMES)
+ || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
+ return;
+ }
+
+ /* Print the entire name */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
+
+ while (num_segments) {
+ for (i = 0; i < 4; i++) {
+ ACPI_IS_PRINT(pathname[i]) ?
+ acpi_os_printf("%c", pathname[i]) :
+ acpi_os_printf("?");
+ }
+
+ pathname += ACPI_NAME_SIZE;
+ num_segments--;
+ if (num_segments) {
+ acpi_os_printf(".");
+ }
+ }
+
+ acpi_os_printf("]\n");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_pathname
+ *
+ * PARAMETERS: Handle - Object
+ * Msg - Prefix message
+ * Level - Desired debug level
+ * Component - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print an object's full namespace pathname
+ * Manages allocation/freeing of a pathname buffer
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
+{
+
+ ACPI_FUNCTION_TRACE(ns_dump_pathname);
+
+ /* Do this only if the requested debug level and component are enabled */
+
+ if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
+ return_VOID;
+ }
+
+ /* Convert handle to a full pathname and print it (with supplied message) */
+
+ acpi_ns_print_node_pathname(handle, msg);
+ acpi_os_printf("\n");
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_one_object
+ *
+ * PARAMETERS: obj_handle - Node to be dumped
+ * Level - Nesting level of the handle
+ * Context - Passed into walk_namespace
+ * return_value - Not used
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Dump a single Node
+ * This procedure is a user_function called by acpi_ns_walk_namespace.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_dump_one_object(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ struct acpi_walk_info *info = (struct acpi_walk_info *)context;
+ struct acpi_namespace_node *this_node;
+ union acpi_operand_object *obj_desc = NULL;
+ acpi_object_type obj_type;
+ acpi_object_type type;
+ u32 bytes_to_dump;
+ u32 dbg_level;
+ u32 i;
+
+ ACPI_FUNCTION_NAME(ns_dump_one_object);
+
+ /* Is output enabled? */
+
+ if (!(acpi_dbg_level & info->debug_level)) {
+ return (AE_OK);
+ }
+
+ if (!obj_handle) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
+ return (AE_OK);
+ }
+
+ this_node = acpi_ns_map_handle_to_node(obj_handle);
+ type = this_node->type;
+
+ /* Check if the owner matches */
+
+ if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
+ (info->owner_id != this_node->owner_id)) {
+ return (AE_OK);
+ }
+
+ if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
+
+ /* Indent the object according to the level */
+
+ acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
+
+ /* Check the node type and name */
+
+ if (type > ACPI_TYPE_LOCAL_MAX) {
+ ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X",
+ type));
+ }
+
+ if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
+ this_node->name.integer =
+ acpi_ut_repair_name(this_node->name.ascii);
+
+ ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
+ this_node->name.integer));
+ }
+
+ acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
+ }
+
+ /*
+ * Now we can print out the pertinent information
+ */
+ acpi_os_printf(" %-12s %p %2.2X ",
+ acpi_ut_get_type_name(type), this_node,
+ this_node->owner_id);
+
+ dbg_level = acpi_dbg_level;
+ acpi_dbg_level = 0;
+ obj_desc = acpi_ns_get_attached_object(this_node);
+ acpi_dbg_level = dbg_level;
+
+ /* Temp nodes are those nodes created by a control method */
+
+ if (this_node->flags & ANOBJ_TEMPORARY) {
+ acpi_os_printf("(T) ");
+ }
+
+ switch (info->display_type & ACPI_DISPLAY_MASK) {
+ case ACPI_DISPLAY_SUMMARY:
+
+ if (!obj_desc) {
+
+ /* No attached object, we are done */
+
+ acpi_os_printf("\n");
+ return (AE_OK);
+ }
+
+ switch (type) {
+ case ACPI_TYPE_PROCESSOR:
+
+ acpi_os_printf("ID %X Len %.4X Addr %p\n",
+ obj_desc->processor.proc_id,
+ obj_desc->processor.length,
+ ACPI_CAST_PTR(void,
+ obj_desc->processor.
+ address));
+ break;
+
+ case ACPI_TYPE_DEVICE:
+
+ acpi_os_printf("Notify Object: %p\n", obj_desc);
+ break;
+
+ case ACPI_TYPE_METHOD:
+
+ acpi_os_printf("Args %X Len %.4X Aml %p\n",
+ (u32) obj_desc->method.param_count,
+ obj_desc->method.aml_length,
+ obj_desc->method.aml_start);
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf("= %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(obj_desc->integer.
+ value));
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ acpi_os_printf("Elements %.2X\n",
+ obj_desc->package.count);
+ } else {
+ acpi_os_printf("[Length not yet evaluated]\n");
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ acpi_os_printf("Len %.2X",
+ obj_desc->buffer.length);
+
+ /* Dump some of the buffer */
+
+ if (obj_desc->buffer.length > 0) {
+ acpi_os_printf(" =");
+ for (i = 0;
+ (i < obj_desc->buffer.length
+ && i < 12); i++) {
+ acpi_os_printf(" %.2hX",
+ obj_desc->buffer.
+ pointer[i]);
+ }
+ }
+ acpi_os_printf("\n");
+ } else {
+ acpi_os_printf("[Length not yet evaluated]\n");
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf("Len %.2X ", obj_desc->string.length);
+ acpi_ut_print_string(obj_desc->string.pointer, 32);
+ acpi_os_printf("\n");
+ break;
+
+ case ACPI_TYPE_REGION:
+
+ acpi_os_printf("[%s]",
+ acpi_ut_get_region_name(obj_desc->region.
+ space_id));
+ if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
+ acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
+ ACPI_FORMAT_NATIVE_UINT
+ (obj_desc->region.address),
+ obj_desc->region.length);
+ } else {
+ acpi_os_printf
+ (" [Address/Length not yet evaluated]\n");
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ acpi_os_printf("[%s]\n",
+ acpi_ut_get_reference_name(obj_desc));
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ if (obj_desc->buffer_field.buffer_obj &&
+ obj_desc->buffer_field.buffer_obj->buffer.node) {
+ acpi_os_printf("Buf [%4.4s]",
+ acpi_ut_get_node_name(obj_desc->
+ buffer_field.
+ buffer_obj->
+ buffer.
+ node));
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+
+ acpi_os_printf("Rgn [%4.4s]",
+ acpi_ut_get_node_name(obj_desc->
+ common_field.
+ region_obj->region.
+ node));
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
+ acpi_ut_get_node_name(obj_desc->
+ common_field.
+ region_obj->region.
+ node),
+ acpi_ut_get_node_name(obj_desc->
+ bank_field.
+ bank_obj->
+ common_field.
+ node));
+ break;
+
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
+ acpi_ut_get_node_name(obj_desc->
+ index_field.
+ index_obj->
+ common_field.node),
+ acpi_ut_get_node_name(obj_desc->
+ index_field.
+ data_obj->
+ common_field.
+ node));
+ break;
+
+ case ACPI_TYPE_LOCAL_ALIAS:
+ case ACPI_TYPE_LOCAL_METHOD_ALIAS:
+
+ acpi_os_printf("Target %4.4s (%p)\n",
+ acpi_ut_get_node_name(obj_desc),
+ obj_desc);
+ break;
+
+ default:
+
+ acpi_os_printf("Object %p\n", obj_desc);
+ break;
+ }
+
+ /* Common field handling */
+
+ switch (type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
+ (obj_desc->common_field.
+ base_byte_offset * 8)
+ +
+ obj_desc->common_field.
+ start_field_bit_offset,
+ obj_desc->common_field.bit_length,
+ obj_desc->common_field.
+ access_byte_width);
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case ACPI_DISPLAY_OBJECTS:
+
+ acpi_os_printf("O:%p", obj_desc);
+ if (!obj_desc) {
+
+ /* No attached object, we are done */
+
+ acpi_os_printf("\n");
+ return (AE_OK);
+ }
+
+ acpi_os_printf("(R%d)", obj_desc->common.reference_count);
+
+ switch (type) {
+ case ACPI_TYPE_METHOD:
+
+ /* Name is a Method and its AML offset/length are set */
+
+ acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
+ obj_desc->method.aml_length);
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf(" I:%8.8X8.8%X\n",
+ ACPI_FORMAT_UINT64(obj_desc->integer.
+ value));
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
+ obj_desc->string.length);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
+ obj_desc->buffer.length);
+ break;
+
+ default:
+
+ acpi_os_printf("\n");
+ break;
+ }
+ break;
+
+ default:
+ acpi_os_printf("\n");
+ break;
+ }
+
+ /* If debug turned off, done */
+
+ if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
+ return (AE_OK);
+ }
+
+ /* If there is an attached object, display it */
+
+ dbg_level = acpi_dbg_level;
+ acpi_dbg_level = 0;
+ obj_desc = acpi_ns_get_attached_object(this_node);
+ acpi_dbg_level = dbg_level;
+
+ /* Dump attached objects */
+
+ while (obj_desc) {
+ obj_type = ACPI_TYPE_INVALID;
+ acpi_os_printf("Attached Object %p: ", obj_desc);
+
+ /* Decode the type of attached object and dump the contents */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+ case ACPI_DESC_TYPE_NAMED:
+
+ acpi_os_printf("(Ptr to Node)\n");
+ bytes_to_dump = sizeof(struct acpi_namespace_node);
+ ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
+ break;
+
+ case ACPI_DESC_TYPE_OPERAND:
+
+ obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
+
+ if (obj_type > ACPI_TYPE_LOCAL_MAX) {
+ acpi_os_printf
+ ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
+ obj_type);
+ bytes_to_dump = 32;
+ } else {
+ acpi_os_printf
+ ("(Pointer to ACPI Object type %.2X [%s])\n",
+ obj_type, acpi_ut_get_type_name(obj_type));
+ bytes_to_dump =
+ sizeof(union acpi_operand_object);
+ }
+
+ ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
+ break;
+
+ default:
+
+ break;
+ }
+
+ /* If value is NOT an internal object, we are done */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
+ ACPI_DESC_TYPE_OPERAND) {
+ goto cleanup;
+ }
+
+ /*
+ * Valid object, get the pointer to next level, if any
+ */
+ switch (obj_type) {
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_STRING:
+ /*
+ * NOTE: takes advantage of common fields between string/buffer
+ */
+ bytes_to_dump = obj_desc->string.length;
+ obj_desc = (void *)obj_desc->string.pointer;
+ acpi_os_printf("(Buffer/String pointer %p length %X)\n",
+ obj_desc, bytes_to_dump);
+ ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
+ goto cleanup;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+ obj_desc =
+ (union acpi_operand_object *)obj_desc->buffer_field.
+ buffer_obj;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ obj_desc = (void *)obj_desc->package.elements;
+ break;
+
+ case ACPI_TYPE_METHOD:
+ obj_desc = (void *)obj_desc->method.aml_start;
+ break;
+
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ obj_desc = (void *)obj_desc->field.region_obj;
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ obj_desc = (void *)obj_desc->bank_field.region_obj;
+ break;
+
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+ obj_desc = (void *)obj_desc->index_field.index_obj;
+ break;
+
+ default:
+ goto cleanup;
+ }
+
+ obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
+ }
+
+ cleanup:
+ acpi_os_printf("\n");
+ return (AE_OK);
+}
+
+#ifdef ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_objects
+ *
+ * PARAMETERS: Type - Object type to be dumped
+ * display_type - 0 or ACPI_DISPLAY_SUMMARY
+ * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
+ * for an effectively unlimited depth.
+ * owner_id - Dump only objects owned by this ID. Use
+ * ACPI_UINT32_MAX to match all owners.
+ * start_handle - Where in namespace to start/end search
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump typed objects within the loaded namespace.
+ * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_dump_objects(acpi_object_type type,
+ u8 display_type,
+ u32 max_depth,
+ acpi_owner_id owner_id, acpi_handle start_handle)
+{
+ struct acpi_walk_info info;
+
+ ACPI_FUNCTION_ENTRY();
+
+ info.debug_level = ACPI_LV_TABLES;
+ info.owner_id = owner_id;
+ info.display_type = display_type;
+
+ (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
+ ACPI_NS_WALK_NO_UNLOCK |
+ ACPI_NS_WALK_TEMP_NODES,
+ acpi_ns_dump_one_object, (void *)&info,
+ NULL);
+}
+#endif /* ACPI_FUTURE_USAGE */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_entry
+ *
+ * PARAMETERS: Handle - Node to be dumped
+ * debug_level - Output level
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump a single Node
+ *
+ ******************************************************************************/
+
+void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
+{
+ struct acpi_walk_info info;
+
+ ACPI_FUNCTION_ENTRY();
+
+ info.debug_level = debug_level;
+ info.owner_id = ACPI_OWNER_ID_MAX;
+ info.display_type = ACPI_DISPLAY_SUMMARY;
+
+ (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
+}
+
+#ifdef ACPI_ASL_COMPILER
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_tables
+ *
+ * PARAMETERS: search_base - Root of subtree to be dumped, or
+ * NS_ALL to dump the entire namespace
+ * max_depth - Maximum depth of dump. Use INT_MAX
+ * for an effectively unlimited depth.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump the name space, or a portion of it.
+ *
+ ******************************************************************************/
+
+void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
+{
+ acpi_handle search_handle = search_base;
+
+ ACPI_FUNCTION_TRACE(ns_dump_tables);
+
+ if (!acpi_gbl_root_node) {
+ /*
+ * If the name space has not been initialized,
+ * there is nothing to dump.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
+ "namespace not initialized!\n"));
+ return_VOID;
+ }
+
+ if (ACPI_NS_ALL == search_base) {
+
+ /* Entire namespace */
+
+ search_handle = acpi_gbl_root_node;
+ ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
+ }
+
+ acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
+ ACPI_OWNER_ID_MAX, search_handle);
+ return_VOID;
+}
+#endif /* _ACPI_ASL_COMPILER */
+#endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsdump - table dumping routines for debug
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+/* TBD: This entire module is apparently obsolete and should be removed */
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsdumpdv")
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+#include <acpi/acnamesp.h>
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_one_device
+ *
+ * PARAMETERS: Handle - Node to be dumped
+ * Level - Nesting level of the handle
+ * Context - Passed into walk_namespace
+ * return_value - Not used
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Dump a single Node that represents a device
+ * This procedure is a user_function called by acpi_ns_walk_namespace.
+ *
+ ******************************************************************************/
+static acpi_status
+acpi_ns_dump_one_device(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ struct acpi_buffer buffer;
+ struct acpi_device_info *info;
+ acpi_status status;
+ u32 i;
+
+ ACPI_FUNCTION_NAME(ns_dump_one_device);
+
+ status =
+ acpi_ns_dump_one_object(obj_handle, level, context, return_value);
+
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_get_object_info(obj_handle, &buffer);
+ if (ACPI_SUCCESS(status)) {
+ info = buffer.pointer;
+ for (i = 0; i < level; i++) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " "));
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES,
+ " HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
+ info->hardware_id.value,
+ ACPI_FORMAT_UINT64(info->address),
+ info->current_status));
+ ACPI_FREE(info);
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_dump_root_devices
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump all objects of type "device"
+ *
+ ******************************************************************************/
+
+void acpi_ns_dump_root_devices(void)
+{
+ acpi_handle sys_bus_handle;
+ acpi_status status;
+
+ ACPI_FUNCTION_NAME(ns_dump_root_devices);
+
+ /* Only dump the table if tracing is enabled */
+
+ if (!(ACPI_LV_TABLES & acpi_dbg_level)) {
+ return;
+ }
+
+ status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle);
+ if (ACPI_FAILURE(status)) {
+ return;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
+ "Display of all devices in the namespace:\n"));
+
+ status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle,
+ ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
+ acpi_ns_dump_one_device, NULL, NULL);
+}
+
+#endif
+#endif
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nseval - Object evaluation, includes control method execution
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nseval")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_evaluate
+ *
+ * PARAMETERS: Info - Evaluation info block, contains:
+ * prefix_node - Prefix or Method/Object Node to execute
+ * Pathname - Name of method to execute, If NULL, the
+ * Node is the object to execute
+ * Parameters - List of parameters to pass to the method,
+ * terminated by NULL. Params itself may be
+ * NULL if no parameters are being passed.
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * parameter_type - Type of Parameter list
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * Flags - ACPI_IGNORE_RETURN_VALUE to delete return
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute a control method or return the current value of an
+ * ACPI namespace object.
+ *
+ * MUTEX: Locks interpreter
+ *
+ ******************************************************************************/
+acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(ns_evaluate);
+
+ if (!info) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Initialize the return value to an invalid object */
+
+ info->return_object = NULL;
+ info->param_count = 0;
+
+ /*
+ * Get the actual namespace node for the target object. Handles these cases:
+ *
+ * 1) Null node, Pathname (absolute path)
+ * 2) Node, Pathname (path relative to Node)
+ * 3) Node, Null Pathname
+ */
+ status = acpi_ns_get_node(info->prefix_node, info->pathname,
+ ACPI_NS_NO_UPSEARCH, &info->resolved_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * For a method alias, we must grab the actual method node so that proper
+ * scoping context will be established before execution.
+ */
+ if (acpi_ns_get_type(info->resolved_node) ==
+ ACPI_TYPE_LOCAL_METHOD_ALIAS) {
+ info->resolved_node =
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ info->resolved_node->object);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname,
+ info->resolved_node,
+ acpi_ns_get_attached_object(info->resolved_node)));
+
+ node = info->resolved_node;
+
+ /*
+ * Two major cases here:
+ *
+ * 1) The object is a control method -- execute it
+ * 2) The object is not a method -- just return it's current value
+ */
+ if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) {
+ /*
+ * 1) Object is a control method - execute it
+ */
+
+ /* Verify that there is a method object associated with this node */
+
+ info->obj_desc =
+ acpi_ns_get_attached_object(info->resolved_node);
+ if (!info->obj_desc) {
+ ACPI_ERROR((AE_INFO,
+ "Control method has no attached sub-object"));
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
+ /* Count the number of arguments being passed to the method */
+
+ if (info->parameters) {
+ while (info->parameters[info->param_count]) {
+ if (info->param_count > ACPI_METHOD_MAX_ARG) {
+ return_ACPI_STATUS(AE_LIMIT);
+ }
+ info->param_count++;
+ }
+ }
+
+
+ ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:",
+ ACPI_LV_INFO, _COMPONENT);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Method at AML address %p Length %X\n",
+ info->obj_desc->method.aml_start + 1,
+ info->obj_desc->method.aml_length - 1));
+
+ /*
+ * Any namespace deletion must acquire both the namespace and
+ * interpreter locks to ensure that no thread is using the portion of
+ * the namespace that is being deleted.
+ *
+ * Execute the method via the interpreter. The interpreter is locked
+ * here before calling into the AML parser
+ */
+ acpi_ex_enter_interpreter();
+ status = acpi_ps_execute_method(info);
+ acpi_ex_exit_interpreter();
+ } else {
+ /*
+ * 2) Object is not a method, return its current value
+ *
+ * Disallow certain object types. For these, "evaluation" is undefined.
+ */
+ switch (info->resolved_node->type) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_EVENT:
+ case ACPI_TYPE_MUTEX:
+ case ACPI_TYPE_REGION:
+ case ACPI_TYPE_THERMAL:
+ case ACPI_TYPE_LOCAL_SCOPE:
+
+ ACPI_ERROR((AE_INFO,
+ "[%4.4s] Evaluation of object type [%s] is not supported",
+ info->resolved_node->name.ascii,
+ acpi_ut_get_type_name(info->resolved_node->
+ type)));
+
+ return_ACPI_STATUS(AE_TYPE);
+
+ default:
+ break;
+ }
+
+ /*
+ * Objects require additional resolution steps (e.g., the Node may be
+ * a field that must be read, etc.) -- we can't just grab the object
+ * out of the node.
+ *
+ * Use resolve_node_to_value() to get the associated value.
+ *
+ * NOTE: we can get away with passing in NULL for a walk state because
+ * resolved_node is guaranteed to not be a reference to either a method
+ * local or a method argument (because this interface is never called
+ * from a running method.)
+ *
+ * Even though we do not directly invoke the interpreter for object
+ * resolution, we must lock it because we could access an opregion.
+ * The opregion access code assumes that the interpreter is locked.
+ */
+ acpi_ex_enter_interpreter();
+
+ /* Function has a strange interface */
+
+ status =
+ acpi_ex_resolve_node_to_value(&info->resolved_node, NULL);
+ acpi_ex_exit_interpreter();
+
+ /*
+ * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed
+ * in resolved_node.
+ */
+ if (ACPI_SUCCESS(status)) {
+ status = AE_CTRL_RETURN_VALUE;
+ info->return_object =
+ ACPI_CAST_PTR(union acpi_operand_object,
+ info->resolved_node);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Returning object %p [%s]\n",
+ info->return_object,
+ acpi_ut_get_object_type_name(info->
+ return_object)));
+ }
+ }
+
+ /*
+ * Check input argument count against the ASL-defined count for a method.
+ * Also check predefined names: argument count and return value against
+ * the ACPI specification. Some incorrect return value types are repaired.
+ */
+ (void)acpi_ns_check_predefined_names(node, info->param_count,
+ status, &info->return_object);
+
+ /* Check if there is a return value that must be dealt with */
+
+ if (status == AE_CTRL_RETURN_VALUE) {
+
+ /* If caller does not want the return value, delete it */
+
+ if (info->flags & ACPI_IGNORE_RETURN_VALUE) {
+ acpi_ut_remove_reference(info->return_object);
+ info->return_object = NULL;
+ }
+
+ /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
+
+ status = AE_OK;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "*** Completed evaluation of object %s ***\n",
+ info->pathname));
+
+ /*
+ * Namespace was unlocked by the handling acpi_ns* function, so we
+ * just return
+ */
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsinit - namespace initialization
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <linux/nmi.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsinit")
+
+/* Local prototypes */
+static acpi_status
+acpi_ns_init_one_object(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value);
+
+static acpi_status
+acpi_ns_init_one_device(acpi_handle obj_handle,
+ u32 nesting_level, void *context, void **return_value);
+
+static acpi_status
+acpi_ns_find_ini_methods(acpi_handle obj_handle,
+ u32 nesting_level, void *context, void **return_value);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_initialize_objects
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk the entire namespace and perform any necessary
+ * initialization on the objects found therein
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ns_initialize_objects(void)
+{
+ acpi_status status;
+ struct acpi_init_walk_info info;
+
+ ACPI_FUNCTION_TRACE(ns_initialize_objects);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "**** Starting initialization of namespace objects ****\n"));
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "Completing Region/Field/Buffer/Package initialization:"));
+
+ /* Set all init info to zero */
+
+ ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
+
+ /* Walk entire namespace from the supplied root */
+
+ status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, acpi_ns_init_one_object,
+ &info, NULL);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
+ info.op_region_init, info.op_region_count,
+ info.field_init, info.field_count,
+ info.buffer_init, info.buffer_count,
+ info.package_init, info.package_count,
+ info.object_count));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "%hd Control Methods found\n", info.method_count));
+ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
+ "%hd Op Regions found\n", info.op_region_count));
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_initialize_devices
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: acpi_status
+ *
+ * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
+ * This means running _INI on all present devices.
+ *
+ * Note: We install PCI config space handler on region access,
+ * not here.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ns_initialize_devices(void)
+{
+ acpi_status status;
+ struct acpi_device_walk_info info;
+
+ ACPI_FUNCTION_TRACE(ns_initialize_devices);
+
+ /* Init counters */
+
+ info.device_count = 0;
+ info.num_STA = 0;
+ info.num_INI = 0;
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "Initializing Device/Processor/Thermal objects by executing _INI methods:"));
+
+ /* Tree analysis: find all subtrees that contain _INI methods */
+
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, FALSE,
+ acpi_ns_find_ini_methods, &info, NULL);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+
+ /* Allocate the evaluation information block */
+
+ info.evaluate_info =
+ ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info.evaluate_info) {
+ status = AE_NO_MEMORY;
+ goto error_exit;
+ }
+
+ /* Walk namespace to execute all _INIs on present devices */
+
+ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, FALSE,
+ acpi_ns_init_one_device, &info, NULL);
+
+ ACPI_FREE(info.evaluate_info);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n",
+ info.num_INI, info.num_STA, info.device_count));
+
+ return_ACPI_STATUS(status);
+
+ error_exit:
+ ACPI_EXCEPTION((AE_INFO, status, "During device initialization"));
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_init_one_object
+ *
+ * PARAMETERS: obj_handle - Node
+ * Level - Current nesting level
+ * Context - Points to a init info struct
+ * return_value - Not used
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
+ * within the namespace.
+ *
+ * Currently, the only objects that require initialization are:
+ * 1) Methods
+ * 2) Op Regions
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_init_one_object(acpi_handle obj_handle,
+ u32 level, void *context, void **return_value)
+{
+ acpi_object_type type;
+ acpi_status status = AE_OK;
+ struct acpi_init_walk_info *info =
+ (struct acpi_init_walk_info *)context;
+ struct acpi_namespace_node *node =
+ (struct acpi_namespace_node *)obj_handle;
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_NAME(ns_init_one_object);
+
+ info->object_count++;
+
+ /* And even then, we are only interested in a few object types */
+
+ type = acpi_ns_get_type(obj_handle);
+ obj_desc = acpi_ns_get_attached_object(node);
+ if (!obj_desc) {
+ return (AE_OK);
+ }
+
+ /* Increment counters for object types we are looking for */
+
+ switch (type) {
+ case ACPI_TYPE_REGION:
+ info->op_region_count++;
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+ info->field_count++;
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ info->field_count++;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ info->buffer_count++;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ info->package_count++;
+ break;
+
+ default:
+
+ /* No init required, just exit now */
+ return (AE_OK);
+ }
+
+ /*
+ * If the object is already initialized, nothing else to do
+ */
+ if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+ return (AE_OK);
+ }
+
+ /*
+ * Must lock the interpreter before executing AML code
+ */
+ acpi_ex_enter_interpreter();
+
+ /*
+ * Each of these types can contain executable AML code within the
+ * declaration.
+ */
+ switch (type) {
+ case ACPI_TYPE_REGION:
+
+ info->op_region_init++;
+ status = acpi_ds_get_region_arguments(obj_desc);
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ info->field_init++;
+ status = acpi_ds_get_buffer_field_arguments(obj_desc);
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ info->field_init++;
+ status = acpi_ds_get_bank_field_arguments(obj_desc);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ info->buffer_init++;
+ status = acpi_ds_get_buffer_arguments(obj_desc);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ info->package_init++;
+ status = acpi_ds_get_package_arguments(obj_desc);
+ break;
+
+ default:
+ /* No other types can get here */
+ break;
+ }
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not execute arguments for [%4.4s] (%s)",
+ acpi_ut_get_node_name(node),
+ acpi_ut_get_type_name(type)));
+ }
+
+ /*
+ * Print a dot for each object unless we are going to print the entire
+ * pathname
+ */
+ if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
+ }
+
+ /*
+ * We ignore errors from above, and always return OK, since we don't want
+ * to abort the walk on any single error.
+ */
+ acpi_ex_exit_interpreter();
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_find_ini_methods
+ *
+ * PARAMETERS: acpi_walk_callback
+ *
+ * RETURN: acpi_status
+ *
+ * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
+ * device/processor/thermal objects, and marks the entire subtree
+ * with a SUBTREE_HAS_INI flag. This flag is used during the
+ * subsequent device initialization walk to avoid entire subtrees
+ * that do not contain an _INI.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_find_ini_methods(acpi_handle obj_handle,
+ u32 nesting_level, void *context, void **return_value)
+{
+ struct acpi_device_walk_info *info =
+ ACPI_CAST_PTR(struct acpi_device_walk_info, context);
+ struct acpi_namespace_node *node;
+ struct acpi_namespace_node *parent_node;
+
+ /* Keep count of device/processor/thermal objects */
+
+ node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
+ if ((node->type == ACPI_TYPE_DEVICE) ||
+ (node->type == ACPI_TYPE_PROCESSOR) ||
+ (node->type == ACPI_TYPE_THERMAL)) {
+ info->device_count++;
+ return (AE_OK);
+ }
+
+ /* We are only looking for methods named _INI */
+
+ if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) {
+ return (AE_OK);
+ }
+
+ /*
+ * The only _INI methods that we care about are those that are
+ * present under Device, Processor, and Thermal objects.
+ */
+ parent_node = acpi_ns_get_parent_node(node);
+ switch (parent_node->type) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+
+ /* Mark parent and bubble up the INI present flag to the root */
+
+ while (parent_node) {
+ parent_node->flags |= ANOBJ_SUBTREE_HAS_INI;
+ parent_node = acpi_ns_get_parent_node(parent_node);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_init_one_device
+ *
+ * PARAMETERS: acpi_walk_callback
+ *
+ * RETURN: acpi_status
+ *
+ * DESCRIPTION: This is called once per device soon after ACPI is enabled
+ * to initialize each device. It determines if the device is
+ * present, and if so, calls _INI.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_init_one_device(acpi_handle obj_handle,
+ u32 nesting_level, void *context, void **return_value)
+{
+ struct acpi_device_walk_info *walk_info =
+ ACPI_CAST_PTR(struct acpi_device_walk_info, context);
+ struct acpi_evaluate_info *info = walk_info->evaluate_info;
+ u32 flags;
+ acpi_status status;
+ struct acpi_namespace_node *device_node;
+
+ ACPI_FUNCTION_TRACE(ns_init_one_device);
+
+ /* We are interested in Devices, Processors and thermal_zones only */
+
+ device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
+ if ((device_node->type != ACPI_TYPE_DEVICE) &&
+ (device_node->type != ACPI_TYPE_PROCESSOR) &&
+ (device_node->type != ACPI_TYPE_THERMAL)) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Because of an earlier namespace analysis, all subtrees that contain an
+ * _INI method are tagged.
+ *
+ * If this device subtree does not contain any _INI methods, we
+ * can exit now and stop traversing this entire subtree.
+ */
+ if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) {
+ return_ACPI_STATUS(AE_CTRL_DEPTH);
+ }
+
+ /*
+ * Run _STA to determine if this device is present and functioning. We
+ * must know this information for two important reasons (from ACPI spec):
+ *
+ * 1) We can only run _INI if the device is present.
+ * 2) We must abort the device tree walk on this subtree if the device is
+ * not present and is not functional (we will not examine the children)
+ *
+ * The _STA method is not required to be present under the device, we
+ * assume the device is present if _STA does not exist.
+ */
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA));
+
+ status = acpi_ut_execute_STA(device_node, &flags);
+ if (ACPI_FAILURE(status)) {
+
+ /* Ignore error and move on to next device */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Flags == -1 means that _STA was not found. In this case, we assume that
+ * the device is both present and functional.
+ *
+ * From the ACPI spec, description of _STA:
+ *
+ * "If a device object (including the processor object) does not have an
+ * _STA object, then OSPM assumes that all of the above bits are set (in
+ * other words, the device is present, ..., and functioning)"
+ */
+ if (flags != ACPI_UINT32_MAX) {
+ walk_info->num_STA++;
+ }
+
+ /*
+ * Examine the PRESENT and FUNCTIONING status bits
+ *
+ * Note: ACPI spec does not seem to specify behavior for the present but
+ * not functioning case, so we assume functioning if present.
+ */
+ if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
+
+ /* Device is not present, we must examine the Functioning bit */
+
+ if (flags & ACPI_STA_DEVICE_FUNCTIONING) {
+ /*
+ * Device is not present but is "functioning". In this case,
+ * we will not run _INI, but we continue to examine the children
+ * of this device.
+ *
+ * From the ACPI spec, description of _STA: (Note - no mention
+ * of whether to run _INI or not on the device in question)
+ *
+ * "_STA may return bit 0 clear (not present) with bit 3 set
+ * (device is functional). This case is used to indicate a valid
+ * device for which no device driver should be loaded (for example,
+ * a bridge device.) Children of this device may be present and
+ * valid. OSPM should continue enumeration below a device whose
+ * _STA returns this bit combination"
+ */
+ return_ACPI_STATUS(AE_OK);
+ } else {
+ /*
+ * Device is not present and is not functioning. We must abort the
+ * walk of this subtree immediately -- don't look at the children
+ * of such a device.
+ *
+ * From the ACPI spec, description of _INI:
+ *
+ * "If the _STA method indicates that the device is not present,
+ * OSPM will not run the _INI and will not examine the children
+ * of the device for _INI methods"
+ */
+ return_ACPI_STATUS(AE_CTRL_DEPTH);
+ }
+ }
+
+ /*
+ * The device is present or is assumed present if no _STA exists.
+ * Run the _INI if it exists (not required to exist)
+ *
+ * Note: We know there is an _INI within this subtree, but it may not be
+ * under this particular device, it may be lower in the branch.
+ */
+ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
+ (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
+
+ info->prefix_node = device_node;
+ info->pathname = METHOD_NAME__INI;
+ info->parameters = NULL;
+ info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+ /*
+ * Some hardware relies on this being executed as atomically
+ * as possible (without an NMI being received in the middle of
+ * this) - so disable NMIs and initialize the device:
+ */
+ acpi_nmi_disable();
+ status = acpi_ns_evaluate(info);
+ acpi_nmi_enable();
+
+ if (ACPI_SUCCESS(status)) {
+ walk_info->num_INI++;
+
+ if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
+ (!(acpi_dbg_level & ACPI_LV_INFO))) {
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
+ }
+ }
+#ifdef ACPI_DEBUG_OUTPUT
+ else if (status != AE_NOT_FOUND) {
+
+ /* Ignore error and move on to next device */
+
+ char *scope_name =
+ acpi_ns_get_external_pathname(info->resolved_node);
+
+ ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution",
+ scope_name));
+ ACPI_FREE(scope_name);
+ }
+#endif
+
+ /* Ignore errors from above */
+
+ status = AE_OK;
+
+ /*
+ * The _INI method has been run if present; call the Global Initialization
+ * Handler for this device.
+ */
+ if (acpi_gbl_init_handler) {
+ status =
+ acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI);
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsload - namespace loading/expanding/contracting procedures
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsload")
+
+/* Local prototypes */
+#ifdef ACPI_FUTURE_IMPLEMENTATION
+acpi_status acpi_ns_unload_namespace(acpi_handle handle);
+
+static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle);
+#endif
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_load_table
+ *
+ * PARAMETERS: table_index - Index for table to be loaded
+ * Node - Owning NS node
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load one ACPI table into the namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ns_load_table);
+
+ /*
+ * Parse the table and load the namespace with all named
+ * objects found within. Control methods are NOT parsed
+ * at this time. In fact, the control methods cannot be
+ * parsed until the entire namespace is loaded, because
+ * if a control method makes a forward reference (call)
+ * to another control method, we can't continue parsing
+ * because we don't know how many arguments to parse next!
+ */
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* If table already loaded into namespace, just return */
+
+ if (acpi_tb_is_table_loaded(table_index)) {
+ status = AE_ALREADY_EXISTS;
+ goto unlock;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "**** Loading table into namespace ****\n"));
+
+ status = acpi_tb_allocate_owner_id(table_index);
+ if (ACPI_FAILURE(status)) {
+ goto unlock;
+ }
+
+ status = acpi_ns_parse_table(table_index, node);
+ if (ACPI_SUCCESS(status)) {
+ acpi_tb_set_table_loaded_flag(table_index, TRUE);
+ } else {
+ (void)acpi_tb_release_owner_id(table_index);
+ }
+
+ unlock:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Now we can parse the control methods. We always parse
+ * them here for a sanity check, and if configured for
+ * just-in-time parsing, we delete the control method
+ * parse trees.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "**** Begin Table Method Parsing and Object Initialization ****\n"));
+
+ status = acpi_ds_initialize_objects(table_index, node);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "**** Completed Table Method Parsing and Object Initialization ****\n"));
+
+ return_ACPI_STATUS(status);
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_load_namespace
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load the name space from what ever is pointed to by DSDT.
+ * (DSDT points to either the BIOS or a buffer.)
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ns_load_namespace(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_load_name_space);
+
+ /* There must be at least a DSDT installed */
+
+ if (acpi_gbl_DSDT == NULL) {
+ ACPI_ERROR((AE_INFO, "DSDT is not in memory"));
+ return_ACPI_STATUS(AE_NO_ACPI_TABLES);
+ }
+
+ /*
+ * Load the namespace. The DSDT is required,
+ * but the SSDT and PSDT tables are optional.
+ */
+ status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Ignore exceptions from these */
+
+ (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT);
+ (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT);
+
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+ "ACPI Namespace successfully loaded at root %p\n",
+ acpi_gbl_root_node));
+
+ return_ACPI_STATUS(status);
+}
+#endif
+
+#ifdef ACPI_FUTURE_IMPLEMENTATION
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_delete_subtree
+ *
+ * PARAMETERS: start_handle - Handle in namespace where search begins
+ *
+ * RETURNS Status
+ *
+ * DESCRIPTION: Walks the namespace starting at the given handle and deletes
+ * all objects, entries, and scopes in the entire subtree.
+ *
+ * Namespace/Interpreter should be locked or the subsystem should
+ * be in shutdown before this routine is called.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
+{
+ acpi_status status;
+ acpi_handle child_handle;
+ acpi_handle parent_handle;
+ acpi_handle next_child_handle;
+ acpi_handle dummy;
+ u32 level;
+
+ ACPI_FUNCTION_TRACE(ns_delete_subtree);
+
+ parent_handle = start_handle;
+ child_handle = NULL;
+ level = 1;
+
+ /*
+ * Traverse the tree of objects until we bubble back up
+ * to where we started.
+ */
+ while (level > 0) {
+
+ /* Attempt to get the next object in this scope */
+
+ status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle,
+ child_handle, &next_child_handle);
+
+ child_handle = next_child_handle;
+
+ /* Did we get a new object? */
+
+ if (ACPI_SUCCESS(status)) {
+
+ /* Check if this object has any children */
+
+ if (ACPI_SUCCESS
+ (acpi_get_next_object
+ (ACPI_TYPE_ANY, child_handle, NULL, &dummy))) {
+ /*
+ * There is at least one child of this object,
+ * visit the object
+ */
+ level++;
+ parent_handle = child_handle;
+ child_handle = NULL;
+ }
+ } else {
+ /*
+ * No more children in this object, go back up to
+ * the object's parent
+ */
+ level--;
+
+ /* Delete all children now */
+
+ acpi_ns_delete_children(child_handle);
+
+ child_handle = parent_handle;
+ status = acpi_get_parent(parent_handle, &parent_handle);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+ }
+
+ /* Now delete the starting object, and we are done */
+
+ acpi_ns_delete_node(child_handle);
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_unload_name_space
+ *
+ * PARAMETERS: Handle - Root of namespace subtree to be deleted
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Shrinks the namespace, typically in response to an undocking
+ * event. Deletes an entire subtree starting from (and
+ * including) the given handle.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ns_unload_namespace(acpi_handle handle)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ns_unload_name_space);
+
+ /* Parameter validation */
+
+ if (!acpi_gbl_root_node) {
+ return_ACPI_STATUS(AE_NO_NAMESPACE);
+ }
+
+ if (!handle) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* This function does the real work */
+
+ status = acpi_ns_delete_subtree(handle);
+
+ return_ACPI_STATUS(status);
+}
+#endif
+#endif
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nsnames - Name manipulation and search
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsnames")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_build_external_path
+ *
+ * PARAMETERS: Node - NS node whose pathname is needed
+ * Size - Size of the pathname
+ * *name_buffer - Where to return the pathname
+ *
+ * RETURN: Status
+ * Places the pathname into the name_buffer, in external format
+ * (name segments separated by path separators)
+ *
+ * DESCRIPTION: Generate a full pathaname
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ns_build_external_path(struct acpi_namespace_node *node,
+ acpi_size size, char *name_buffer)
+{
+ acpi_size index;
+ struct acpi_namespace_node *parent_node;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Special case for root */
+
+ index = size - 1;
+ if (index < ACPI_NAME_SIZE) {
+ name_buffer[0] = AML_ROOT_PREFIX;
+ name_buffer[1] = 0;
+ return (AE_OK);
+ }
+
+ /* Store terminator byte, then build name backwards */
+
+ parent_node = node;
+ name_buffer[index] = 0;
+
+ while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) {
+ index -= ACPI_NAME_SIZE;
+
+ /* Put the name into the buffer */
+
+ ACPI_MOVE_32_TO_32((name_buffer + index), &parent_node->name);
+ parent_node = acpi_ns_get_parent_node(parent_node);
+
+ /* Prefix name with the path separator */
+
+ index--;
+ name_buffer[index] = ACPI_PATH_SEPARATOR;
+ }
+
+ /* Overwrite final separator with the root prefix character */
+
+ name_buffer[index] = AML_ROOT_PREFIX;
+
+ if (index != 0) {
+ ACPI_ERROR((AE_INFO,
+ "Could not construct external pathname; index=%X, size=%X, Path=%s",
+ (u32) index, (u32) size, &name_buffer[size]));
+
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_external_pathname
+ *
+ * PARAMETERS: Node - Namespace node whose pathname is needed
+ *
+ * RETURN: Pointer to storage containing the fully qualified name of
+ * the node, In external format (name segments separated by path
+ * separators.)
+ *
+ * DESCRIPTION: Used for debug printing in acpi_ns_search_table().
+ *
+ ******************************************************************************/
+
+char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
+{
+ acpi_status status;
+ char *name_buffer;
+ acpi_size size;
+
+ ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);
+
+ /* Calculate required buffer size based on depth below root */
+
+ size = acpi_ns_get_pathname_length(node);
+ if (!size) {
+ return_PTR(NULL);
+ }
+
+ /* Allocate a buffer to be returned to caller */
+
+ name_buffer = ACPI_ALLOCATE_ZEROED(size);
+ if (!name_buffer) {
+ ACPI_ERROR((AE_INFO, "Allocation failure"));
+ return_PTR(NULL);
+ }
+
+ /* Build the path in the allocated buffer */
+
+ status = acpi_ns_build_external_path(node, size, name_buffer);
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(name_buffer);
+ return_PTR(NULL);
+ }
+
+ return_PTR(name_buffer);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_pathname_length
+ *
+ * PARAMETERS: Node - Namespace node
+ *
+ * RETURN: Length of path, including prefix
+ *
+ * DESCRIPTION: Get the length of the pathname string for this node
+ *
+ ******************************************************************************/
+
+acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node)
+{
+ acpi_size size;
+ struct acpi_namespace_node *next_node;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Compute length of pathname as 5 * number of name segments.
+ * Go back up the parent tree to the root
+ */
+ size = 0;
+ next_node = node;
+
+ while (next_node && (next_node != acpi_gbl_root_node)) {
+ if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) {
+ ACPI_ERROR((AE_INFO,
+ "Invalid Namespace Node (%p) while traversing namespace",
+ next_node));
+ return 0;
+ }
+ size += ACPI_PATH_SEGMENT_LENGTH;
+ next_node = acpi_ns_get_parent_node(next_node);
+ }
+
+ if (!size) {
+ size = 1; /* Root node case */
+ }
+
+ return (size + 1); /* +1 for null string terminator */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_handle_to_pathname
+ *
+ * PARAMETERS: target_handle - Handle of named object whose name is
+ * to be found
+ * Buffer - Where the pathname is returned
+ *
+ * RETURN: Status, Buffer is filled with pathname if status is AE_OK
+ *
+ * DESCRIPTION: Build and return a full namespace pathname
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_handle_to_pathname(acpi_handle target_handle,
+ struct acpi_buffer * buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ acpi_size required_size;
+
+ ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);
+
+ node = acpi_ns_map_handle_to_node(target_handle);
+ if (!node) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Determine size required for the caller buffer */
+
+ required_size = acpi_ns_get_pathname_length(node);
+ if (!required_size) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status = acpi_ut_initialize_buffer(buffer, required_size);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Build the path in the caller buffer */
+
+ status =
+ acpi_ns_build_external_path(node, required_size, buffer->pointer);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n",
+ (char *)buffer->pointer, (u32) required_size));
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nsobject - Utilities for objects attached to namespace
+ * table entries
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsobject")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_attach_object
+ *
+ * PARAMETERS: Node - Parent Node
+ * Object - Object to be attached
+ * Type - Type of object, or ACPI_TYPE_ANY if not
+ * known
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Record the given object as the value associated with the
+ * name whose acpi_handle is passed. If Object is NULL
+ * and Type is ACPI_TYPE_ANY, set the name as having no value.
+ * Note: Future may require that the Node->Flags field be passed
+ * as a parameter.
+ *
+ * MUTEX: Assumes namespace is locked
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ns_attach_object(struct acpi_namespace_node *node,
+ union acpi_operand_object *object, acpi_object_type type)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *last_obj_desc;
+ acpi_object_type object_type = ACPI_TYPE_ANY;
+
+ ACPI_FUNCTION_TRACE(ns_attach_object);
+
+ /*
+ * Parameter validation
+ */
+ if (!node) {
+
+ /* Invalid handle */
+
+ ACPI_ERROR((AE_INFO, "Null NamedObj handle"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (!object && (ACPI_TYPE_ANY != type)) {
+
+ /* Null object */
+
+ ACPI_ERROR((AE_INFO,
+ "Null object, but type not ACPI_TYPE_ANY"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
+
+ /* Not a name handle */
+
+ ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]",
+ node, acpi_ut_get_descriptor_name(node)));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Check if this object is already attached */
+
+ if (node->object == object) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Obj %p already installed in NameObj %p\n",
+ object, node));
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* If null object, we will just install it */
+
+ if (!object) {
+ obj_desc = NULL;
+ object_type = ACPI_TYPE_ANY;
+ }
+
+ /*
+ * If the source object is a namespace Node with an attached object,
+ * we will use that (attached) object
+ */
+ else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) &&
+ ((struct acpi_namespace_node *)object)->object) {
+ /*
+ * Value passed is a name handle and that name has a
+ * non-null value. Use that name's value and type.
+ */
+ obj_desc = ((struct acpi_namespace_node *)object)->object;
+ object_type = ((struct acpi_namespace_node *)object)->type;
+ }
+
+ /*
+ * Otherwise, we will use the parameter object, but we must type
+ * it first
+ */
+ else {
+ obj_desc = (union acpi_operand_object *)object;
+
+ /* Use the given type */
+
+ object_type = type;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n",
+ obj_desc, node, acpi_ut_get_node_name(node)));
+
+ /* Detach an existing attached object if present */
+
+ if (node->object) {
+ acpi_ns_detach_object(node);
+ }
+
+ if (obj_desc) {
+ /*
+ * Must increment the new value's reference count
+ * (if it is an internal object)
+ */
+ acpi_ut_add_reference(obj_desc);
+
+ /*
+ * Handle objects with multiple descriptors - walk
+ * to the end of the descriptor list
+ */
+ last_obj_desc = obj_desc;
+ while (last_obj_desc->common.next_object) {
+ last_obj_desc = last_obj_desc->common.next_object;
+ }
+
+ /* Install the object at the front of the object list */
+
+ last_obj_desc->common.next_object = node->object;
+ }
+
+ node->type = (u8) object_type;
+ node->object = obj_desc;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_detach_object
+ *
+ * PARAMETERS: Node - A Namespace node whose object will be detached
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Detach/delete an object associated with a namespace node.
+ * if the object is an allocated object, it is freed.
+ * Otherwise, the field is simply cleared.
+ *
+ ******************************************************************************/
+
+void acpi_ns_detach_object(struct acpi_namespace_node *node)
+{
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE(ns_detach_object);
+
+ obj_desc = node->object;
+
+ if (!obj_desc ||
+ (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) {
+ return_VOID;
+ }
+
+ /* Clear the entry in all cases */
+
+ node->object = NULL;
+ if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) {
+ node->object = obj_desc->common.next_object;
+ if (node->object &&
+ (ACPI_GET_OBJECT_TYPE(node->object) !=
+ ACPI_TYPE_LOCAL_DATA)) {
+ node->object = node->object->common.next_object;
+ }
+ }
+
+ /* Reset the node type to untyped */
+
+ node->type = ACPI_TYPE_ANY;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n",
+ node, acpi_ut_get_node_name(node), obj_desc));
+
+ /* Remove one reference on the object (and all subobjects) */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_attached_object
+ *
+ * PARAMETERS: Node - Namespace node
+ *
+ * RETURN: Current value of the object field from the Node whose
+ * handle is passed
+ *
+ * DESCRIPTION: Obtain the object attached to a namespace node.
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ns_get_attached_object(struct
+ acpi_namespace_node
+ *node)
+{
+ ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node);
+
+ if (!node) {
+ ACPI_WARNING((AE_INFO, "Null Node ptr"));
+ return_PTR(NULL);
+ }
+
+ if (!node->object ||
+ ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND)
+ && (ACPI_GET_DESCRIPTOR_TYPE(node->object) !=
+ ACPI_DESC_TYPE_NAMED))
+ || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) {
+ return_PTR(NULL);
+ }
+
+ return_PTR(node->object);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_secondary_object
+ *
+ * PARAMETERS: Node - Namespace node
+ *
+ * RETURN: Current value of the object field from the Node whose
+ * handle is passed.
+ *
+ * DESCRIPTION: Obtain a secondary object associated with a namespace node.
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ns_get_secondary_object(union
+ acpi_operand_object
+ *obj_desc)
+{
+ ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc);
+
+ if ((!obj_desc) ||
+ (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) ||
+ (!obj_desc->common.next_object) ||
+ (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) ==
+ ACPI_TYPE_LOCAL_DATA)) {
+ return_PTR(NULL);
+ }
+
+ return_PTR(obj_desc->common.next_object);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_attach_data
+ *
+ * PARAMETERS: Node - Namespace node
+ * Handler - Handler to be associated with the data
+ * Data - Data to be attached
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Low-level attach data. Create and attach a Data object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_attach_data(struct acpi_namespace_node *node,
+ acpi_object_handler handler, void *data)
+{
+ union acpi_operand_object *prev_obj_desc;
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *data_desc;
+
+ /* We only allow one attachment per handler */
+
+ prev_obj_desc = NULL;
+ obj_desc = node->object;
+ while (obj_desc) {
+ if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
+ (obj_desc->data.handler == handler)) {
+ return (AE_ALREADY_EXISTS);
+ }
+
+ prev_obj_desc = obj_desc;
+ obj_desc = obj_desc->common.next_object;
+ }
+
+ /* Create an internal object for the data */
+
+ data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA);
+ if (!data_desc) {
+ return (AE_NO_MEMORY);
+ }
+
+ data_desc->data.handler = handler;
+ data_desc->data.pointer = data;
+
+ /* Install the data object */
+
+ if (prev_obj_desc) {
+ prev_obj_desc->common.next_object = data_desc;
+ } else {
+ node->object = data_desc;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_detach_data
+ *
+ * PARAMETERS: Node - Namespace node
+ * Handler - Handler associated with the data
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Low-level detach data. Delete the data node, but the caller
+ * is responsible for the actual data.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_detach_data(struct acpi_namespace_node * node,
+ acpi_object_handler handler)
+{
+ union acpi_operand_object *obj_desc;
+ union acpi_operand_object *prev_obj_desc;
+
+ prev_obj_desc = NULL;
+ obj_desc = node->object;
+ while (obj_desc) {
+ if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
+ (obj_desc->data.handler == handler)) {
+ if (prev_obj_desc) {
+ prev_obj_desc->common.next_object =
+ obj_desc->common.next_object;
+ } else {
+ node->object = obj_desc->common.next_object;
+ }
+
+ acpi_ut_remove_reference(obj_desc);
+ return (AE_OK);
+ }
+
+ prev_obj_desc = obj_desc;
+ obj_desc = obj_desc->common.next_object;
+ }
+
+ return (AE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_attached_data
+ *
+ * PARAMETERS: Node - Namespace node
+ * Handler - Handler associated with the data
+ * Data - Where the data is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Low level interface to obtain data previously associated with
+ * a namespace node.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_get_attached_data(struct acpi_namespace_node * node,
+ acpi_object_handler handler, void **data)
+{
+ union acpi_operand_object *obj_desc;
+
+ obj_desc = node->object;
+ while (obj_desc) {
+ if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
+ (obj_desc->data.handler == handler)) {
+ *data = obj_desc->data.pointer;
+ return (AE_OK);
+ }
+
+ obj_desc = obj_desc->common.next_object;
+ }
+
+ return (AE_NOT_FOUND);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsparse - namespace interface to AML parser
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsparse")
+
+/*******************************************************************************
+ *
+ * FUNCTION: ns_one_complete_parse
+ *
+ * PARAMETERS: pass_number - 1 or 2
+ * table_desc - The table to be parsed.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ns_one_complete_parse(u32 pass_number,
+ u32 table_index,
+ struct acpi_namespace_node *start_node)
+{
+ union acpi_parse_object *parse_root;
+ acpi_status status;
+ u32 aml_length;
+ u8 *aml_start;
+ struct acpi_walk_state *walk_state;
+ struct acpi_table_header *table;
+ acpi_owner_id owner_id;
+
+ ACPI_FUNCTION_TRACE(ns_one_complete_parse);
+
+ status = acpi_tb_get_owner_id(table_index, &owner_id);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Create and init a Root Node */
+
+ parse_root = acpi_ps_create_scope_op();
+ if (!parse_root) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Create and initialize a new walk state */
+
+ walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL);
+ if (!walk_state) {
+ acpi_ps_free_op(parse_root);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_FAILURE(status)) {
+ acpi_ds_delete_walk_state(walk_state);
+ acpi_ps_free_op(parse_root);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Table must consist of at least a complete header */
+
+ if (table->length < sizeof(struct acpi_table_header)) {
+ status = AE_BAD_HEADER;
+ } else {
+ aml_start = (u8 *) table + sizeof(struct acpi_table_header);
+ aml_length = table->length - sizeof(struct acpi_table_header);
+ status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
+ aml_start, aml_length, NULL,
+ (u8) pass_number);
+ }
+
+ if (ACPI_FAILURE(status)) {
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ /* start_node is the default location to load the table */
+
+ if (start_node && start_node != acpi_gbl_root_node) {
+ status =
+ acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+ }
+
+ /* Parse the AML */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %d parse\n",
+ (unsigned)pass_number));
+ status = acpi_ps_parse_aml(walk_state);
+
+ cleanup:
+ acpi_ps_delete_parse_tree(parse_root);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_parse_table
+ *
+ * PARAMETERS: table_desc - An ACPI table descriptor for table to parse
+ * start_node - Where to enter the table into the namespace
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ns_parse_table);
+
+ /*
+ * AML Parse, pass 1
+ *
+ * In this pass, we load most of the namespace. Control methods
+ * are not parsed until later. A parse tree is not created. Instead,
+ * each Parser Op subtree is deleted when it is finished. This saves
+ * a great deal of memory, and allows a small cache of parse objects
+ * to service the entire parse. The second pass of the parse then
+ * performs another complete parse of the AML.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 1\n"));
+ status =
+ acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1, table_index,
+ start_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * AML Parse, pass 2
+ *
+ * In this pass, we resolve forward references and other things
+ * that could not be completed during the first pass.
+ * Another complete parse of the AML is performed, but the
+ * overhead of this is compensated for by the fact that the
+ * parse objects are all cached.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 2\n"));
+ status =
+ acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2, table_index,
+ start_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nspredef - Validation of ACPI predefined methods and objects
+ * $Revision: 1.1 $
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acpredef.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nspredef")
+
+/*******************************************************************************
+ *
+ * This module validates predefined ACPI objects that appear in the namespace,
+ * at the time they are evaluated (via acpi_evaluate_object). The purpose of this
+ * validation is to detect problems with BIOS-exposed predefined ACPI objects
+ * before the results are returned to the ACPI-related drivers.
+ *
+ * There are several areas that are validated:
+ *
+ * 1) The number of input arguments as defined by the method/object in the
+ * ASL is validated against the ACPI specification.
+ * 2) The type of the return object (if any) is validated against the ACPI
+ * specification.
+ * 3) For returned package objects, the count of package elements is
+ * validated, as well as the type of each package element. Nested
+ * packages are supported.
+ *
+ * For any problems found, a warning message is issued.
+ *
+ ******************************************************************************/
+/* Local prototypes */
+static acpi_status
+acpi_ns_check_package(char *pathname,
+ union acpi_operand_object **return_object_ptr,
+ const union acpi_predefined_info *predefined);
+
+static acpi_status
+acpi_ns_check_package_elements(char *pathname,
+ union acpi_operand_object **elements,
+ u8 type1, u32 count1, u8 type2, u32 count2);
+
+static acpi_status
+acpi_ns_check_object_type(char *pathname,
+ union acpi_operand_object **return_object_ptr,
+ u32 expected_btypes, u32 package_index);
+
+static acpi_status
+acpi_ns_check_reference(char *pathname,
+ union acpi_operand_object *return_object);
+
+static acpi_status
+acpi_ns_repair_object(u32 expected_btypes,
+ u32 package_index,
+ union acpi_operand_object **return_object_ptr);
+
+/*
+ * Names for the types that can be returned by the predefined objects.
+ * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
+ */
+static const char *acpi_rtype_names[] = {
+ "/Integer",
+ "/String",
+ "/Buffer",
+ "/Package",
+ "/Reference",
+};
+
+#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_predefined_names
+ *
+ * PARAMETERS: Node - Namespace node for the method/object
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Check an ACPI name for a match in the predefined name list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
+ u32 user_param_count,
+ acpi_status return_status,
+ union acpi_operand_object **return_object_ptr)
+{
+ union acpi_operand_object *return_object = *return_object_ptr;
+ acpi_status status = AE_OK;
+ const union acpi_predefined_info *predefined;
+ char *pathname;
+
+ /* Match the name for this method/object against the predefined list */
+
+ predefined = acpi_ns_check_for_predefined_name(node);
+
+ /* Get the full pathname to the object, for use in error messages */
+
+ pathname = acpi_ns_get_external_pathname(node);
+ if (!pathname) {
+ pathname = ACPI_CAST_PTR(char, predefined->info.name);
+ }
+
+ /*
+ * Check that the parameter count for this method matches the ASL
+ * definition. For predefined names, ensure that both the caller and
+ * the method itself are in accordance with the ACPI specification.
+ */
+ acpi_ns_check_parameter_count(pathname, node, user_param_count,
+ predefined);
+
+ /* If not a predefined name, we cannot validate the return object */
+
+ if (!predefined) {
+ goto exit;
+ }
+
+ /* If the method failed, we cannot validate the return object */
+
+ if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) {
+ goto exit;
+ }
+
+ /*
+ * Only validate the return value on the first successful evaluation of
+ * the method. This ensures that any warnings will only be emitted during
+ * the very first evaluation of the method/object.
+ */
+ if (node->flags & ANOBJ_EVALUATED) {
+ goto exit;
+ }
+
+ /* Mark the node as having been successfully evaluated */
+
+ node->flags |= ANOBJ_EVALUATED;
+
+ /*
+ * If there is no return value, check if we require a return value for
+ * this predefined name. Either one return value is expected, or none,
+ * for both methods and other objects.
+ *
+ * Exit now if there is no return object. Warning if one was expected.
+ */
+ if (!return_object) {
+ if ((predefined->info.expected_btypes) &&
+ (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) {
+ ACPI_ERROR((AE_INFO,
+ "%s: Missing expected return value",
+ pathname));
+
+ status = AE_AML_NO_RETURN_VALUE;
+ }
+ goto exit;
+ }
+
+ /*
+ * We have a return value, but if one wasn't expected, just exit, this is
+ * not a problem
+ *
+ * For example, if the "Implicit Return" feature is enabled, methods will
+ * always return a value
+ */
+ if (!predefined->info.expected_btypes) {
+ goto exit;
+ }
+
+ /*
+ * Check that the type of the return object is what is expected for
+ * this predefined name
+ */
+ status = acpi_ns_check_object_type(pathname, return_object_ptr,
+ predefined->info.expected_btypes,
+ ACPI_NOT_PACKAGE);
+ if (ACPI_FAILURE(status)) {
+ goto exit;
+ }
+
+ /* For returned Package objects, check the type of all sub-objects */
+
+ if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) {
+ status =
+ acpi_ns_check_package(pathname, return_object_ptr,
+ predefined);
+ }
+
+ exit:
+ if (pathname != predefined->info.name) {
+ ACPI_FREE(pathname);
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_parameter_count
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * Node - Namespace node for the method/object
+ * user_param_count - Number of args passed in by the caller
+ * Predefined - Pointer to entry in predefined name table
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a
+ * predefined name is what is expected (i.e., what is defined in
+ * the ACPI specification for this predefined name.)
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_check_parameter_count(char *pathname,
+ struct acpi_namespace_node *node,
+ u32 user_param_count,
+ const union acpi_predefined_info *predefined)
+{
+ u32 param_count;
+ u32 required_params_current;
+ u32 required_params_old;
+
+ /* Methods have 0-7 parameters. All other types have zero. */
+
+ param_count = 0;
+ if (node->type == ACPI_TYPE_METHOD) {
+ param_count = node->object->method.param_count;
+ }
+
+ /* Argument count check for non-predefined methods/objects */
+
+ if (!predefined) {
+ /*
+ * Warning if too few or too many arguments have been passed by the
+ * caller. An incorrect number of arguments may not cause the method
+ * to fail. However, the method will fail if there are too few
+ * arguments and the method attempts to use one of the missing ones.
+ */
+ if (user_param_count < param_count) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Insufficient arguments - needs %d, found %d",
+ pathname, param_count, user_param_count));
+ } else if (user_param_count > param_count) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Excess arguments - needs %d, found %d",
+ pathname, param_count, user_param_count));
+ }
+ return;
+ }
+
+ /* Allow two different legal argument counts (_SCP, etc.) */
+
+ required_params_current = predefined->info.param_count & 0x0F;
+ required_params_old = predefined->info.param_count >> 4;
+
+ if (user_param_count != ACPI_UINT32_MAX) {
+
+ /* Validate the user-supplied parameter count */
+
+ if ((user_param_count != required_params_current) &&
+ (user_param_count != required_params_old)) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Parameter count mismatch - caller passed %d, ACPI requires %d",
+ pathname, user_param_count,
+ required_params_current));
+ }
+ }
+
+ /*
+ * Only validate the argument count on the first successful evaluation of
+ * the method. This ensures that any warnings will only be emitted during
+ * the very first evaluation of the method/object.
+ */
+ if (node->flags & ANOBJ_EVALUATED) {
+ return;
+ }
+
+ /*
+ * Check that the ASL-defined parameter count is what is expected for
+ * this predefined name.
+ */
+ if ((param_count != required_params_current) &&
+ (param_count != required_params_old)) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d",
+ pathname, param_count, required_params_current));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_for_predefined_name
+ *
+ * PARAMETERS: Node - Namespace node for the method/object
+ *
+ * RETURN: Pointer to entry in predefined table. NULL indicates not found.
+ *
+ * DESCRIPTION: Check an object name against the predefined object list.
+ *
+ ******************************************************************************/
+
+const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
+ acpi_namespace_node
+ *node)
+{
+ const union acpi_predefined_info *this_name;
+
+ /* Quick check for a predefined name, first character must be underscore */
+
+ if (node->name.ascii[0] != '_') {
+ return (NULL);
+ }
+
+ /* Search info table for a predefined method/object name */
+
+ this_name = predefined_names;
+ while (this_name->info.name[0]) {
+ if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) {
+
+ /* Return pointer to this table entry */
+
+ return (this_name);
+ }
+
+ /*
+ * Skip next entry in the table if this name returns a Package
+ * (next entry contains the package info)
+ */
+ if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
+ this_name++;
+ }
+
+ this_name++;
+ }
+
+ return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_package
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
+ * Predefined - Pointer to entry in predefined name table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Check a returned package object for the correct count and
+ * correct type of all sub-objects.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_package(char *pathname,
+ union acpi_operand_object **return_object_ptr,
+ const union acpi_predefined_info *predefined)
+{
+ union acpi_operand_object *return_object = *return_object_ptr;
+ const union acpi_predefined_info *package;
+ union acpi_operand_object *sub_package;
+ union acpi_operand_object **elements;
+ union acpi_operand_object **sub_elements;
+ acpi_status status;
+ u32 expected_count;
+ u32 count;
+ u32 i;
+ u32 j;
+
+ ACPI_FUNCTION_NAME(ns_check_package);
+
+ /* The package info for this name is in the next table entry */
+
+ package = predefined + 1;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "%s Validating return Package of Type %X, Count %X\n",
+ pathname, package->ret_info.type,
+ return_object->package.count));
+
+ /* Extract package count and elements array */
+
+ elements = return_object->package.elements;
+ count = return_object->package.count;
+
+ /* The package must have at least one element, else invalid */
+
+ if (!count) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Return Package has no elements (empty)",
+ pathname));
+
+ return (AE_AML_OPERAND_VALUE);
+ }
+
+ /*
+ * Decode the type of the expected package contents
+ *
+ * PTYPE1 packages contain no subpackages
+ * PTYPE2 packages contain sub-packages
+ */
+ switch (package->ret_info.type) {
+ case ACPI_PTYPE1_FIXED:
+
+ /*
+ * The package count is fixed and there are no sub-packages
+ *
+ * If package is too small, exit.
+ * If package is larger than expected, issue warning but continue
+ */
+ expected_count =
+ package->ret_info.count1 + package->ret_info.count2;
+ if (count < expected_count) {
+ goto package_too_small;
+ } else if (count > expected_count) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Return Package is larger than needed - "
+ "found %u, expected %u", pathname, count,
+ expected_count));
+ }
+
+ /* Validate all elements of the returned package */
+
+ status = acpi_ns_check_package_elements(pathname, elements,
+ package->ret_info.
+ object_type1,
+ package->ret_info.
+ count1,
+ package->ret_info.
+ object_type2,
+ package->ret_info.
+ count2);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ case ACPI_PTYPE1_VAR:
+
+ /*
+ * The package count is variable, there are no sub-packages, and all
+ * elements must be of the same type
+ */
+ for (i = 0; i < count; i++) {
+ status = acpi_ns_check_object_type(pathname, elements,
+ package->ret_info.
+ object_type1, i);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ elements++;
+ }
+ break;
+
+ case ACPI_PTYPE1_OPTION:
+
+ /*
+ * The package count is variable, there are no sub-packages. There are
+ * a fixed number of required elements, and a variable number of
+ * optional elements.
+ *
+ * Check if package is at least as large as the minimum required
+ */
+ expected_count = package->ret_info3.count;
+ if (count < expected_count) {
+ goto package_too_small;
+ }
+
+ /* Variable number of sub-objects */
+
+ for (i = 0; i < count; i++) {
+ if (i < package->ret_info3.count) {
+
+ /* These are the required package elements (0, 1, or 2) */
+
+ status =
+ acpi_ns_check_object_type(pathname,
+ elements,
+ package->
+ ret_info3.
+ object_type[i],
+ i);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ } else {
+ /* These are the optional package elements */
+
+ status =
+ acpi_ns_check_object_type(pathname,
+ elements,
+ package->
+ ret_info3.
+ tail_object_type,
+ i);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+ elements++;
+ }
+ break;
+
+ case ACPI_PTYPE2_PKG_COUNT:
+
+ /* First element is the (Integer) count of sub-packages to follow */
+
+ status = acpi_ns_check_object_type(pathname, elements,
+ ACPI_RTYPE_INTEGER, 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /*
+ * Count cannot be larger than the parent package length, but allow it
+ * to be smaller. The >= accounts for the Integer above.
+ */
+ expected_count = (u32) (*elements)->integer.value;
+ if (expected_count >= count) {
+ goto package_too_small;
+ }
+
+ count = expected_count;
+ elements++;
+
+ /* Now we can walk the sub-packages */
+
+ /*lint -fallthrough */
+
+ case ACPI_PTYPE2:
+ case ACPI_PTYPE2_FIXED:
+ case ACPI_PTYPE2_MIN:
+ case ACPI_PTYPE2_COUNT:
+
+ /*
+ * These types all return a single package that consists of a variable
+ * number of sub-packages
+ */
+ for (i = 0; i < count; i++) {
+ sub_package = *elements;
+ sub_elements = sub_package->package.elements;
+
+ /* Each sub-object must be of type Package */
+
+ status =
+ acpi_ns_check_object_type(pathname, &sub_package,
+ ACPI_RTYPE_PACKAGE, i);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Examine the different types of sub-packages */
+
+ switch (package->ret_info.type) {
+ case ACPI_PTYPE2:
+ case ACPI_PTYPE2_PKG_COUNT:
+
+ /* Each subpackage has a fixed number of elements */
+
+ expected_count =
+ package->ret_info.count1 +
+ package->ret_info.count2;
+ if (sub_package->package.count !=
+ expected_count) {
+ count = sub_package->package.count;
+ goto package_too_small;
+ }
+
+ status =
+ acpi_ns_check_package_elements(pathname,
+ sub_elements,
+ package->
+ ret_info.
+ object_type1,
+ package->
+ ret_info.
+ count1,
+ package->
+ ret_info.
+ object_type2,
+ package->
+ ret_info.
+ count2);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ case ACPI_PTYPE2_FIXED:
+
+ /* Each sub-package has a fixed length */
+
+ expected_count = package->ret_info2.count;
+ if (sub_package->package.count < expected_count) {
+ count = sub_package->package.count;
+ goto package_too_small;
+ }
+
+ /* Check the type of each sub-package element */
+
+ for (j = 0; j < expected_count; j++) {
+ status =
+ acpi_ns_check_object_type(pathname,
+ &sub_elements[j],
+ package->ret_info2.object_type[j], j);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+ break;
+
+ case ACPI_PTYPE2_MIN:
+
+ /* Each sub-package has a variable but minimum length */
+
+ expected_count = package->ret_info.count1;
+ if (sub_package->package.count < expected_count) {
+ count = sub_package->package.count;
+ goto package_too_small;
+ }
+
+ /* Check the type of each sub-package element */
+
+ status =
+ acpi_ns_check_package_elements(pathname,
+ sub_elements,
+ package->
+ ret_info.
+ object_type1,
+ sub_package->
+ package.
+ count, 0, 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ case ACPI_PTYPE2_COUNT:
+
+ /* First element is the (Integer) count of elements to follow */
+
+ status =
+ acpi_ns_check_object_type(pathname,
+ sub_elements,
+ ACPI_RTYPE_INTEGER,
+ 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Make sure package is large enough for the Count */
+
+ expected_count =
+ (u32) (*sub_elements)->integer.value;
+ if (sub_package->package.count < expected_count) {
+ count = sub_package->package.count;
+ goto package_too_small;
+ }
+
+ /* Check the type of each sub-package element */
+
+ status =
+ acpi_ns_check_package_elements(pathname,
+ (sub_elements
+ + 1),
+ package->
+ ret_info.
+ object_type1,
+ (expected_count
+ - 1), 0, 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ elements++;
+ }
+ break;
+
+ default:
+
+ /* Should not get here if predefined info table is correct */
+
+ ACPI_WARNING((AE_INFO,
+ "%s: Invalid internal return type in table entry: %X",
+ pathname, package->ret_info.type));
+
+ return (AE_AML_INTERNAL);
+ }
+
+ return (AE_OK);
+
+ package_too_small:
+
+ /* Error exit for the case with an incorrect package count */
+
+ ACPI_WARNING((AE_INFO, "%s: Return Package is too small - "
+ "found %u, expected %u", pathname, count,
+ expected_count));
+
+ return (AE_AML_OPERAND_VALUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_package_elements
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * Elements - Pointer to the package elements array
+ * Type1 - Object type for first group
+ * Count1 - Count for first group
+ * Type2 - Object type for second group
+ * Count2 - Count for second group
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Check that all elements of a package are of the correct object
+ * type. Supports up to two groups of different object types.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_package_elements(char *pathname,
+ union acpi_operand_object **elements,
+ u8 type1, u32 count1, u8 type2, u32 count2)
+{
+ union acpi_operand_object **this_element = elements;
+ acpi_status status;
+ u32 i;
+
+ /*
+ * Up to two groups of package elements are supported by the data
+ * structure. All elements in each group must be of the same type.
+ * The second group can have a count of zero.
+ */
+ for (i = 0; i < count1; i++) {
+ status = acpi_ns_check_object_type(pathname, this_element,
+ type1, i);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ this_element++;
+ }
+
+ for (i = 0; i < count2; i++) {
+ status = acpi_ns_check_object_type(pathname, this_element,
+ type2, (i + count1));
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ this_element++;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_object_type
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
+ * expected_btypes - Bitmap of expected return type(s)
+ * package_index - Index of object within parent package (if
+ * applicable - ACPI_NOT_PACKAGE otherwise)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Check the type of the return object against the expected object
+ * type(s). Use of Btype allows multiple expected object types.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_object_type(char *pathname,
+ union acpi_operand_object **return_object_ptr,
+ u32 expected_btypes, u32 package_index)
+{
+ union acpi_operand_object *return_object = *return_object_ptr;
+ acpi_status status = AE_OK;
+ u32 return_btype;
+ char type_buffer[48]; /* Room for 5 types */
+ u32 this_rtype;
+ u32 i;
+ u32 j;
+
+ /*
+ * If we get a NULL return_object here, it is a NULL package element,
+ * and this is always an error.
+ */
+ if (!return_object) {
+ goto type_error_exit;
+ }
+
+ /* A Namespace node should not get here, but make sure */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Invalid return type - Found a Namespace node [%4.4s] type %s",
+ pathname, return_object->node.name.ascii,
+ acpi_ut_get_type_name(return_object->node.type)));
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type.
+ * The bitmapped type allows multiple possible return types.
+ *
+ * Note, the cases below must handle all of the possible types returned
+ * from all of the predefined names (including elements of returned
+ * packages)
+ */
+ switch (ACPI_GET_OBJECT_TYPE(return_object)) {
+ case ACPI_TYPE_INTEGER:
+ return_btype = ACPI_RTYPE_INTEGER;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ return_btype = ACPI_RTYPE_BUFFER;
+ break;
+
+ case ACPI_TYPE_STRING:
+ return_btype = ACPI_RTYPE_STRING;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ return_btype = ACPI_RTYPE_PACKAGE;
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ return_btype = ACPI_RTYPE_REFERENCE;
+ break;
+
+ default:
+ /* Not one of the supported objects, must be incorrect */
+
+ goto type_error_exit;
+ }
+
+ /* Is the object one of the expected types? */
+
+ if (!(return_btype & expected_btypes)) {
+
+ /* Type mismatch -- attempt repair of the returned object */
+
+ status = acpi_ns_repair_object(expected_btypes, package_index,
+ return_object_ptr);
+ if (ACPI_SUCCESS(status)) {
+ return (status);
+ }
+ goto type_error_exit;
+ }
+
+ /* For reference objects, check that the reference type is correct */
+
+ if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) {
+ status = acpi_ns_check_reference(pathname, return_object);
+ }
+
+ return (status);
+
+ type_error_exit:
+
+ /* Create a string with all expected types for this predefined object */
+
+ j = 1;
+ type_buffer[0] = 0;
+ this_rtype = ACPI_RTYPE_INTEGER;
+
+ for (i = 0; i < ACPI_NUM_RTYPES; i++) {
+
+ /* If one of the expected types, concatenate the name of this type */
+
+ if (expected_btypes & this_rtype) {
+ ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]);
+ j = 0; /* Use name separator from now on */
+ }
+ this_rtype <<= 1; /* Next Rtype */
+ }
+
+ if (package_index == ACPI_NOT_PACKAGE) {
+ ACPI_WARNING((AE_INFO,
+ "%s: Return type mismatch - found %s, expected %s",
+ pathname,
+ acpi_ut_get_object_type_name(return_object),
+ type_buffer));
+ } else {
+ ACPI_WARNING((AE_INFO,
+ "%s: Return Package type mismatch at index %u - "
+ "found %s, expected %s", pathname, package_index,
+ acpi_ut_get_object_type_name(return_object),
+ type_buffer));
+ }
+
+ return (AE_AML_OPERAND_TYPE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_check_reference
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * return_object - Object returned from the evaluation of a
+ * method or object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Check a returned reference object for the correct reference
+ * type. The only reference type that can be returned from a
+ * predefined method is a named reference. All others are invalid.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_reference(char *pathname,
+ union acpi_operand_object *return_object)
+{
+
+ /*
+ * Check the reference object for the correct reference type (opcode).
+ * The only type of reference that can be converted to an union acpi_object is
+ * a reference to a named object (reference class: NAME)
+ */
+ if (return_object->reference.class == ACPI_REFCLASS_NAME) {
+ return (AE_OK);
+ }
+
+ ACPI_WARNING((AE_INFO,
+ "%s: Return type mismatch - unexpected reference object type [%s] %2.2X",
+ pathname, acpi_ut_get_reference_name(return_object),
+ return_object->reference.class));
+
+ return (AE_AML_OPERAND_TYPE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_repair_object
+ *
+ * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
+ * package_index - Used to determine if target is in a package
+ * return_object_ptr - Pointer to the object returned from the
+ * evaluation of a method or object
+ *
+ * RETURN: Status. AE_OK if repair was successful.
+ *
+ * DESCRIPTION: Attempt to repair/convert a return object of a type that was
+ * not expected.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_repair_object(u32 expected_btypes,
+ u32 package_index,
+ union acpi_operand_object **return_object_ptr)
+{
+ union acpi_operand_object *return_object = *return_object_ptr;
+ union acpi_operand_object *new_object;
+ acpi_size length;
+
+ switch (ACPI_GET_OBJECT_TYPE(return_object)) {
+ case ACPI_TYPE_BUFFER:
+
+ if (!(expected_btypes & ACPI_RTYPE_STRING)) {
+ return (AE_AML_OPERAND_TYPE);
+ }
+
+ /*
+ * Have a Buffer, expected a String, convert. Use a to_string
+ * conversion, no transform performed on the buffer data. The best
+ * example of this is the _BIF method, where the string data from
+ * the battery is often (incorrectly) returned as buffer object(s).
+ */
+ length = 0;
+ while ((length < return_object->buffer.length) &&
+ (return_object->buffer.pointer[length])) {
+ length++;
+ }
+
+ /* Allocate a new string object */
+
+ new_object = acpi_ut_create_string_object(length);
+ if (!new_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the raw buffer data with no transform. String is already NULL
+ * terminated at Length+1.
+ */
+ ACPI_MEMCPY(new_object->string.pointer,
+ return_object->buffer.pointer, length);
+
+ /* Install the new return object */
+
+ acpi_ut_remove_reference(return_object);
+ *return_object_ptr = new_object;
+
+ /*
+ * If the object is a package element, we need to:
+ * 1. Decrement the reference count of the orignal object, it was
+ * incremented when building the package
+ * 2. Increment the reference count of the new object, it will be
+ * decremented when releasing the package
+ */
+ if (package_index != ACPI_NOT_PACKAGE) {
+ acpi_ut_remove_reference(return_object);
+ acpi_ut_add_reference(new_object);
+ }
+ return (AE_OK);
+
+ default:
+ break;
+ }
+
+ return (AE_AML_OPERAND_TYPE);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nssearch - Namespace search
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nssearch")
+
+/* Local prototypes */
+static acpi_status
+acpi_ns_search_parent_tree(u32 target_name,
+ struct acpi_namespace_node *node,
+ acpi_object_type type,
+ struct acpi_namespace_node **return_node);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_search_one_scope
+ *
+ * PARAMETERS: target_name - Ascii ACPI name to search for
+ * parent_node - Starting node where search will begin
+ * Type - Object type to match
+ * return_node - Where the matched Named obj is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Search a single level of the namespace. Performs a
+ * simple search of the specified level, and does not add
+ * entries or search parents.
+ *
+ *
+ * Named object lists are built (and subsequently dumped) in the
+ * order in which the names are encountered during the namespace load;
+ *
+ * All namespace searching is linear in this implementation, but
+ * could be easily modified to support any improved search
+ * algorithm. However, the linear search was chosen for simplicity
+ * and because the trees are small and the other interpreter
+ * execution overhead is relatively high.
+ *
+ * Note: CPU execution analysis has shown that the AML interpreter spends
+ * a very small percentage of its time searching the namespace. Therefore,
+ * the linear search seems to be sufficient, as there would seem to be
+ * little value in improving the search.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_search_one_scope(u32 target_name,
+ struct acpi_namespace_node *parent_node,
+ acpi_object_type type,
+ struct acpi_namespace_node **return_node)
+{
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(ns_search_one_scope);
+
+#ifdef ACPI_DEBUG_OUTPUT
+ if (ACPI_LV_NAMES & acpi_dbg_level) {
+ char *scope_name;
+
+ scope_name = acpi_ns_get_external_pathname(parent_node);
+ if (scope_name) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Searching %s (%p) For [%4.4s] (%s)\n",
+ scope_name, parent_node,
+ ACPI_CAST_PTR(char, &target_name),
+ acpi_ut_get_type_name(type)));
+
+ ACPI_FREE(scope_name);
+ }
+ }
+#endif
+
+ /*
+ * Search for name at this namespace level, which is to say that we
+ * must search for the name among the children of this object
+ */
+ node = parent_node->child;
+ while (node) {
+
+ /* Check for match against the name */
+
+ if (node->name.integer == target_name) {
+
+ /* Resolve a control method alias if any */
+
+ if (acpi_ns_get_type(node) ==
+ ACPI_TYPE_LOCAL_METHOD_ALIAS) {
+ node =
+ ACPI_CAST_PTR(struct acpi_namespace_node,
+ node->object);
+ }
+
+ /* Found matching entry */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n",
+ ACPI_CAST_PTR(char, &target_name),
+ acpi_ut_get_type_name(node->type),
+ node,
+ acpi_ut_get_node_name(parent_node),
+ parent_node));
+
+ *return_node = node;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * The last entry in the list points back to the parent,
+ * so a flag is used to indicate the end-of-list
+ */
+ if (node->flags & ANOBJ_END_OF_PEER_LIST) {
+
+ /* Searched entire list, we are done */
+
+ break;
+ }
+
+ /* Didn't match name, move on to the next peer object */
+
+ node = node->peer;
+ }
+
+ /* Searched entire namespace level, not found */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n",
+ ACPI_CAST_PTR(char, &target_name),
+ acpi_ut_get_type_name(type),
+ acpi_ut_get_node_name(parent_node), parent_node,
+ parent_node->child));
+
+ return_ACPI_STATUS(AE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_search_parent_tree
+ *
+ * PARAMETERS: target_name - Ascii ACPI name to search for
+ * Node - Starting node where search will begin
+ * Type - Object type to match
+ * return_node - Where the matched Node is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Called when a name has not been found in the current namespace
+ * level. Before adding it or giving up, ACPI scope rules require
+ * searching enclosing scopes in cases identified by acpi_ns_local().
+ *
+ * "A name is located by finding the matching name in the current
+ * name space, and then in the parent name space. If the parent
+ * name space does not contain the name, the search continues
+ * recursively until either the name is found or the name space
+ * does not have a parent (the root of the name space). This
+ * indicates that the name is not found" (From ACPI Specification,
+ * section 5.3)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_search_parent_tree(u32 target_name,
+ struct acpi_namespace_node *node,
+ acpi_object_type type,
+ struct acpi_namespace_node **return_node)
+{
+ acpi_status status;
+ struct acpi_namespace_node *parent_node;
+
+ ACPI_FUNCTION_TRACE(ns_search_parent_tree);
+
+ parent_node = acpi_ns_get_parent_node(node);
+
+ /*
+ * If there is no parent (i.e., we are at the root) or type is "local",
+ * we won't be searching the parent tree.
+ */
+ if (!parent_node) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[%4.4s] has no parent\n",
+ ACPI_CAST_PTR(char, &target_name)));
+ return_ACPI_STATUS(AE_NOT_FOUND);
+ }
+
+ if (acpi_ns_local(type)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "[%4.4s] type [%s] must be local to this scope (no parent search)\n",
+ ACPI_CAST_PTR(char, &target_name),
+ acpi_ut_get_type_name(type)));
+ return_ACPI_STATUS(AE_NOT_FOUND);
+ }
+
+ /* Search the parent tree */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "Searching parent [%4.4s] for [%4.4s]\n",
+ acpi_ut_get_node_name(parent_node),
+ ACPI_CAST_PTR(char, &target_name)));
+
+ /*
+ * Search parents until target is found or we have backed up to the root
+ */
+ while (parent_node) {
+ /*
+ * Search parent scope. Use TYPE_ANY because we don't care about the
+ * object type at this point, we only care about the existence of
+ * the actual name we are searching for. Typechecking comes later.
+ */
+ status =
+ acpi_ns_search_one_scope(target_name, parent_node,
+ ACPI_TYPE_ANY, return_node);
+ if (ACPI_SUCCESS(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Not found here, go up another level (until we reach the root) */
+
+ parent_node = acpi_ns_get_parent_node(parent_node);
+ }
+
+ /* Not found in parent tree */
+
+ return_ACPI_STATUS(AE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_search_and_enter
+ *
+ * PARAMETERS: target_name - Ascii ACPI name to search for (4 chars)
+ * walk_state - Current state of the walk
+ * Node - Starting node where search will begin
+ * interpreter_mode - Add names only in ACPI_MODE_LOAD_PASS_x.
+ * Otherwise,search only.
+ * Type - Object type to match
+ * Flags - Flags describing the search restrictions
+ * return_node - Where the Node is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Search for a name segment in a single namespace level,
+ * optionally adding it if it is not found. If the passed
+ * Type is not Any and the type previously stored in the
+ * entry was Any (i.e. unknown), update the stored type.
+ *
+ * In ACPI_IMODE_EXECUTE, search only.
+ * In other modes, search and add if not found.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_search_and_enter(u32 target_name,
+ struct acpi_walk_state *walk_state,
+ struct acpi_namespace_node *node,
+ acpi_interpreter_mode interpreter_mode,
+ acpi_object_type type,
+ u32 flags, struct acpi_namespace_node **return_node)
+{
+ acpi_status status;
+ struct acpi_namespace_node *new_node;
+
+ ACPI_FUNCTION_TRACE(ns_search_and_enter);
+
+ /* Parameter validation */
+
+ if (!node || !target_name || !return_node) {
+ ACPI_ERROR((AE_INFO,
+ "Null parameter: Node %p Name %X ReturnNode %p",
+ node, target_name, return_node));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Name must consist of valid ACPI characters. We will repair the name if
+ * necessary because we don't want to abort because of this, but we want
+ * all namespace names to be printable. A warning message is appropriate.
+ *
+ * This issue came up because there are in fact machines that exhibit
+ * this problem, and we want to be able to enable ACPI support for them,
+ * even though there are a few bad names.
+ */
+ if (!acpi_ut_valid_acpi_name(target_name)) {
+ target_name =
+ acpi_ut_repair_name(ACPI_CAST_PTR(char, &target_name));
+
+ /* Report warning only if in strict mode or debug mode */
+
+ if (!acpi_gbl_enable_interpreter_slack) {
+ ACPI_WARNING((AE_INFO,
+ "Found bad character(s) in name, repaired: [%4.4s]\n",
+ ACPI_CAST_PTR(char, &target_name)));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Found bad character(s) in name, repaired: [%4.4s]\n",
+ ACPI_CAST_PTR(char, &target_name)));
+ }
+ }
+
+ /* Try to find the name in the namespace level specified by the caller */
+
+ *return_node = ACPI_ENTRY_NOT_FOUND;
+ status = acpi_ns_search_one_scope(target_name, node, type, return_node);
+ if (status != AE_NOT_FOUND) {
+ /*
+ * If we found it AND the request specifies that a find is an error,
+ * return the error
+ */
+ if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) {
+ status = AE_ALREADY_EXISTS;
+ }
+
+ /* Either found it or there was an error: finished either way */
+
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * The name was not found. If we are NOT performing the first pass
+ * (name entry) of loading the namespace, search the parent tree (all the
+ * way to the root if necessary.) We don't want to perform the parent
+ * search when the namespace is actually being loaded. We want to perform
+ * the search when namespace references are being resolved (load pass 2)
+ * and during the execution phase.
+ */
+ if ((interpreter_mode != ACPI_IMODE_LOAD_PASS1) &&
+ (flags & ACPI_NS_SEARCH_PARENT)) {
+ /*
+ * Not found at this level - search parent tree according to the
+ * ACPI specification
+ */
+ status =
+ acpi_ns_search_parent_tree(target_name, node, type,
+ return_node);
+ if (ACPI_SUCCESS(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* In execute mode, just search, never add names. Exit now */
+
+ if (interpreter_mode == ACPI_IMODE_EXECUTE) {
+ ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+ "%4.4s Not found in %p [Not adding]\n",
+ ACPI_CAST_PTR(char, &target_name), node));
+
+ return_ACPI_STATUS(AE_NOT_FOUND);
+ }
+
+ /* Create the new named object */
+
+ new_node = acpi_ns_create_node(target_name);
+ if (!new_node) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+#ifdef ACPI_ASL_COMPILER
+ /*
+ * Node is an object defined by an External() statement
+ */
+ if (flags & ACPI_NS_EXTERNAL) {
+ new_node->flags |= ANOBJ_IS_EXTERNAL;
+ }
+#endif
+
+ if (flags & ACPI_NS_TEMPORARY) {
+ new_node->flags |= ANOBJ_TEMPORARY;
+ }
+
+ /* Install the new object into the parent's list of children */
+
+ acpi_ns_install_node(walk_state, node, new_node, type);
+ *return_node = new_node;
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing
+ * parents and siblings and Scope manipulation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/amlcode.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsutils")
+
+/* Local prototypes */
+static u8 acpi_ns_valid_path_separator(char sep);
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search);
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_report_error
+ *
+ * PARAMETERS: module_name - Caller's module name (for error output)
+ * line_number - Caller's line number (for error output)
+ * internal_name - Name or path of the namespace node
+ * lookup_status - Exception code from NS lookup
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print warning message with full pathname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_report_error(const char *module_name,
+ u32 line_number,
+ const char *internal_name, acpi_status lookup_status)
+{
+ acpi_status status;
+ u32 bad_name;
+ char *name = NULL;
+
+ acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
+
+ if (lookup_status == AE_BAD_CHARACTER) {
+
+ /* There is a non-ascii character in the name */
+
+ ACPI_MOVE_32_TO_32(&bad_name, internal_name);
+ acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name);
+ } else {
+ /* Convert path to external format */
+
+ status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
+ internal_name, NULL, &name);
+
+ /* Print target name */
+
+ if (ACPI_SUCCESS(status)) {
+ acpi_os_printf("[%s]", name);
+ } else {
+ acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
+ }
+
+ if (name) {
+ ACPI_FREE(name);
+ }
+ }
+
+ acpi_os_printf(" Namespace lookup failure, %s\n",
+ acpi_format_exception(lookup_status));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_report_method_error
+ *
+ * PARAMETERS: module_name - Caller's module name (for error output)
+ * line_number - Caller's line number (for error output)
+ * Message - Error message to use on failure
+ * prefix_node - Prefix relative to the path
+ * Path - Path to the node (optional)
+ * method_status - Execution status
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print warning message with full pathname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_report_method_error(const char *module_name,
+ u32 line_number,
+ const char *message,
+ struct acpi_namespace_node *prefix_node,
+ const char *path, acpi_status method_status)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node = prefix_node;
+
+ acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
+
+ if (path) {
+ status =
+ acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
+ &node);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf("[Could not get node by pathname]");
+ }
+ }
+
+ acpi_ns_print_node_pathname(node, message);
+ acpi_os_printf(", %s\n", acpi_format_exception(method_status));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_print_node_pathname
+ *
+ * PARAMETERS: Node - Object
+ * Message - Prefix message
+ *
+ * DESCRIPTION: Print an object's full namespace pathname
+ * Manages allocation/freeing of a pathname buffer
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_print_node_pathname(struct acpi_namespace_node *node,
+ const char *message)
+{
+ struct acpi_buffer buffer;
+ acpi_status status;
+
+ if (!node) {
+ acpi_os_printf("[NULL NAME]");
+ return;
+ }
+
+ /* Convert handle to full pathname and print it (with supplied message) */
+
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+
+ status = acpi_ns_handle_to_pathname(node, &buffer);
+ if (ACPI_SUCCESS(status)) {
+ if (message) {
+ acpi_os_printf("%s ", message);
+ }
+
+ acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node);
+ ACPI_FREE(buffer.pointer);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_valid_root_prefix
+ *
+ * PARAMETERS: Prefix - Character to be checked
+ *
+ * RETURN: TRUE if a valid prefix
+ *
+ * DESCRIPTION: Check if a character is a valid ACPI Root prefix
+ *
+ ******************************************************************************/
+
+u8 acpi_ns_valid_root_prefix(char prefix)
+{
+
+ return ((u8) (prefix == '\\'));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_valid_path_separator
+ *
+ * PARAMETERS: Sep - Character to be checked
+ *
+ * RETURN: TRUE if a valid path separator
+ *
+ * DESCRIPTION: Check if a character is a valid ACPI path separator
+ *
+ ******************************************************************************/
+
+static u8 acpi_ns_valid_path_separator(char sep)
+{
+
+ return ((u8) (sep == '.'));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_type
+ *
+ * PARAMETERS: Node - Parent Node to be examined
+ *
+ * RETURN: Type field from Node whose handle is passed
+ *
+ * DESCRIPTION: Return the type of a Namespace node
+ *
+ ******************************************************************************/
+
+acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
+{
+ ACPI_FUNCTION_TRACE(ns_get_type);
+
+ if (!node) {
+ ACPI_WARNING((AE_INFO, "Null Node parameter"));
+ return_UINT32(ACPI_TYPE_ANY);
+ }
+
+ return_UINT32((acpi_object_type) node->type);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_local
+ *
+ * PARAMETERS: Type - A namespace object type
+ *
+ * RETURN: LOCAL if names must be found locally in objects of the
+ * passed type, 0 if enclosing scopes should be searched
+ *
+ * DESCRIPTION: Returns scope rule for the given object type.
+ *
+ ******************************************************************************/
+
+u32 acpi_ns_local(acpi_object_type type)
+{
+ ACPI_FUNCTION_TRACE(ns_local);
+
+ if (!acpi_ut_valid_object_type(type)) {
+
+ /* Type code out of range */
+
+ ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
+ return_UINT32(ACPI_NS_NORMAL);
+ }
+
+ return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_internal_name_length
+ *
+ * PARAMETERS: Info - Info struct initialized with the
+ * external name pointer.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Calculate the length of the internal (AML) namestring
+ * corresponding to the external (ASL) namestring.
+ *
+ ******************************************************************************/
+
+void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
+{
+ const char *next_external_char;
+ u32 i;
+
+ ACPI_FUNCTION_ENTRY();
+
+ next_external_char = info->external_name;
+ info->num_carats = 0;
+ info->num_segments = 0;
+ info->fully_qualified = FALSE;
+
+ /*
+ * For the internal name, the required length is 4 bytes per segment, plus
+ * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null
+ * (which is not really needed, but no there's harm in putting it there)
+ *
+ * strlen() + 1 covers the first name_seg, which has no path separator
+ */
+ if (acpi_ns_valid_root_prefix(*next_external_char)) {
+ info->fully_qualified = TRUE;
+ next_external_char++;
+
+ /* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */
+
+ while (acpi_ns_valid_root_prefix(*next_external_char)) {
+ next_external_char++;
+ }
+ } else {
+ /*
+ * Handle Carat prefixes
+ */
+ while (*next_external_char == '^') {
+ info->num_carats++;
+ next_external_char++;
+ }
+ }
+
+ /*
+ * Determine the number of ACPI name "segments" by counting the number of
+ * path separators within the string. Start with one segment since the
+ * segment count is [(# separators) + 1], and zero separators is ok.
+ */
+ if (*next_external_char) {
+ info->num_segments = 1;
+ for (i = 0; next_external_char[i]; i++) {
+ if (acpi_ns_valid_path_separator(next_external_char[i])) {
+ info->num_segments++;
+ }
+ }
+ }
+
+ info->length = (ACPI_NAME_SIZE * info->num_segments) +
+ 4 + info->num_carats;
+
+ info->next_external_char = next_external_char;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_build_internal_name
+ *
+ * PARAMETERS: Info - Info struct fully initialized
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Construct the internal (AML) namestring
+ * corresponding to the external (ASL) namestring.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
+{
+ u32 num_segments = info->num_segments;
+ char *internal_name = info->internal_name;
+ const char *external_name = info->next_external_char;
+ char *result = NULL;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ns_build_internal_name);
+
+ /* Setup the correct prefixes, counts, and pointers */
+
+ if (info->fully_qualified) {
+ internal_name[0] = '\\';
+
+ if (num_segments <= 1) {
+ result = &internal_name[1];
+ } else if (num_segments == 2) {
+ internal_name[1] = AML_DUAL_NAME_PREFIX;
+ result = &internal_name[2];
+ } else {
+ internal_name[1] = AML_MULTI_NAME_PREFIX_OP;
+ internal_name[2] = (char)num_segments;
+ result = &internal_name[3];
+ }
+ } else {
+ /*
+ * Not fully qualified.
+ * Handle Carats first, then append the name segments
+ */
+ i = 0;
+ if (info->num_carats) {
+ for (i = 0; i < info->num_carats; i++) {
+ internal_name[i] = '^';
+ }
+ }
+
+ if (num_segments <= 1) {
+ result = &internal_name[i];
+ } else if (num_segments == 2) {
+ internal_name[i] = AML_DUAL_NAME_PREFIX;
+ result = &internal_name[(acpi_size) i + 1];
+ } else {
+ internal_name[i] = AML_MULTI_NAME_PREFIX_OP;
+ internal_name[(acpi_size) i + 1] = (char)num_segments;
+ result = &internal_name[(acpi_size) i + 2];
+ }
+ }
+
+ /* Build the name (minus path separators) */
+
+ for (; num_segments; num_segments--) {
+ for (i = 0; i < ACPI_NAME_SIZE; i++) {
+ if (acpi_ns_valid_path_separator(*external_name) ||
+ (*external_name == 0)) {
+
+ /* Pad the segment with underscore(s) if segment is short */
+
+ result[i] = '_';
+ } else {
+ /* Convert the character to uppercase and save it */
+
+ result[i] =
+ (char)ACPI_TOUPPER((int)*external_name);
+ external_name++;
+ }
+ }
+
+ /* Now we must have a path separator, or the pathname is bad */
+
+ if (!acpi_ns_valid_path_separator(*external_name) &&
+ (*external_name != 0)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Move on the next segment */
+
+ external_name++;
+ result += ACPI_NAME_SIZE;
+ }
+
+ /* Terminate the string */
+
+ *result = 0;
+
+ if (info->fully_qualified) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Returning [%p] (abs) \"\\%s\"\n",
+ internal_name, internal_name));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n",
+ internal_name, internal_name));
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_internalize_name
+ *
+ * PARAMETERS: *external_name - External representation of name
+ * **Converted Name - Where to return the resulting
+ * internal represention of the name
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0")
+ * to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
+ *
+ *******************************************************************************/
+
+acpi_status
+acpi_ns_internalize_name(const char *external_name, char **converted_name)
+{
+ char *internal_name;
+ struct acpi_namestring_info info;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ns_internalize_name);
+
+ if ((!external_name) || (*external_name == 0) || (!converted_name)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Get the length of the new internal name */
+
+ info.external_name = external_name;
+ acpi_ns_get_internal_name_length(&info);
+
+ /* We need a segment to store the internal name */
+
+ internal_name = ACPI_ALLOCATE_ZEROED(info.length);
+ if (!internal_name) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Build the name */
+
+ info.internal_name = internal_name;
+ status = acpi_ns_build_internal_name(&info);
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(internal_name);
+ return_ACPI_STATUS(status);
+ }
+
+ *converted_name = internal_name;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_externalize_name
+ *
+ * PARAMETERS: internal_name_length - Lenth of the internal name below
+ * internal_name - Internal representation of name
+ * converted_name_length - Where the length is returned
+ * converted_name - Where the resulting external name
+ * is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
+ * to its external (printable) form (e.g. "\_PR_.CPU0")
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_externalize_name(u32 internal_name_length,
+ const char *internal_name,
+ u32 * converted_name_length, char **converted_name)
+{
+ u32 names_index = 0;
+ u32 num_segments = 0;
+ u32 required_length;
+ u32 prefix_length = 0;
+ u32 i = 0;
+ u32 j = 0;
+
+ ACPI_FUNCTION_TRACE(ns_externalize_name);
+
+ if (!internal_name_length || !internal_name || !converted_name) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Check for a prefix (one '\' | one or more '^').
+ */
+ switch (internal_name[0]) {
+ case '\\':
+ prefix_length = 1;
+ break;
+
+ case '^':
+ for (i = 0; i < internal_name_length; i++) {
+ if (internal_name[i] == '^') {
+ prefix_length = i + 1;
+ } else {
+ break;
+ }
+ }
+
+ if (i == internal_name_length) {
+ prefix_length = i;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ /*
+ * Check for object names. Note that there could be 0-255 of these
+ * 4-byte elements.
+ */
+ if (prefix_length < internal_name_length) {
+ switch (internal_name[prefix_length]) {
+ case AML_MULTI_NAME_PREFIX_OP:
+
+ /* <count> 4-byte names */
+
+ names_index = prefix_length + 2;
+ num_segments = (u8)
+ internal_name[(acpi_size) prefix_length + 1];
+ break;
+
+ case AML_DUAL_NAME_PREFIX:
+
+ /* Two 4-byte names */
+
+ names_index = prefix_length + 1;
+ num_segments = 2;
+ break;
+
+ case 0:
+
+ /* null_name */
+
+ names_index = 0;
+ num_segments = 0;
+ break;
+
+ default:
+
+ /* one 4-byte name */
+
+ names_index = prefix_length;
+ num_segments = 1;
+ break;
+ }
+ }
+
+ /*
+ * Calculate the length of converted_name, which equals the length
+ * of the prefix, length of all object names, length of any required
+ * punctuation ('.') between object names, plus the NULL terminator.
+ */
+ required_length = prefix_length + (4 * num_segments) +
+ ((num_segments > 0) ? (num_segments - 1) : 0) + 1;
+
+ /*
+ * Check to see if we're still in bounds. If not, there's a problem
+ * with internal_name (invalid format).
+ */
+ if (required_length > internal_name_length) {
+ ACPI_ERROR((AE_INFO, "Invalid internal name"));
+ return_ACPI_STATUS(AE_BAD_PATHNAME);
+ }
+
+ /*
+ * Build converted_name
+ */
+ *converted_name = ACPI_ALLOCATE_ZEROED(required_length);
+ if (!(*converted_name)) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ j = 0;
+
+ for (i = 0; i < prefix_length; i++) {
+ (*converted_name)[j++] = internal_name[i];
+ }
+
+ if (num_segments > 0) {
+ for (i = 0; i < num_segments; i++) {
+ if (i > 0) {
+ (*converted_name)[j++] = '.';
+ }
+
+ (*converted_name)[j++] = internal_name[names_index++];
+ (*converted_name)[j++] = internal_name[names_index++];
+ (*converted_name)[j++] = internal_name[names_index++];
+ (*converted_name)[j++] = internal_name[names_index++];
+ }
+ }
+
+ if (converted_name_length) {
+ *converted_name_length = (u32) required_length;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_map_handle_to_node
+ *
+ * PARAMETERS: Handle - Handle to be converted to an Node
+ *
+ * RETURN: A Name table entry pointer
+ *
+ * DESCRIPTION: Convert a namespace handle to a real Node
+ *
+ * Note: Real integer handles would allow for more verification
+ * and keep all pointers within this subsystem - however this introduces
+ * more (and perhaps unnecessary) overhead.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
+{
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Simple implementation
+ */
+ if ((!handle) || (handle == ACPI_ROOT_OBJECT)) {
+ return (acpi_gbl_root_node);
+ }
+
+ /* We can at least attempt to verify the handle */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(handle) != ACPI_DESC_TYPE_NAMED) {
+ return (NULL);
+ }
+
+ return (ACPI_CAST_PTR(struct acpi_namespace_node, handle));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_convert_entry_to_handle
+ *
+ * PARAMETERS: Node - Node to be converted to a Handle
+ *
+ * RETURN: A user handle
+ *
+ * DESCRIPTION: Convert a real Node to a namespace handle
+ *
+ ******************************************************************************/
+
+acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node)
+{
+
+ /*
+ * Simple implementation for now;
+ */
+ return ((acpi_handle) node);
+
+/* Example future implementation ---------------------
+
+ if (!Node)
+ {
+ return (NULL);
+ }
+
+ if (Node == acpi_gbl_root_node)
+ {
+ return (ACPI_ROOT_OBJECT);
+ }
+
+ return ((acpi_handle) Node);
+------------------------------------------------------*/
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_terminate
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: free memory allocated for namespace and ACPI table storage.
+ *
+ ******************************************************************************/
+
+void acpi_ns_terminate(void)
+{
+ union acpi_operand_object *obj_desc;
+
+ ACPI_FUNCTION_TRACE(ns_terminate);
+
+ /*
+ * 1) Free the entire namespace -- all nodes and objects
+ *
+ * Delete all object descriptors attached to namepsace nodes
+ */
+ acpi_ns_delete_namespace_subtree(acpi_gbl_root_node);
+
+ /* Detach any objects attached to the root */
+
+ obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node);
+ if (obj_desc) {
+ acpi_ns_detach_object(acpi_gbl_root_node);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n"));
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_opens_scope
+ *
+ * PARAMETERS: Type - A valid namespace type
+ *
+ * RETURN: NEWSCOPE if the passed type "opens a name scope" according
+ * to the ACPI specification, else 0
+ *
+ ******************************************************************************/
+
+u32 acpi_ns_opens_scope(acpi_object_type type)
+{
+ ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type));
+
+ if (!acpi_ut_valid_object_type(type)) {
+
+ /* type code out of range */
+
+ ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
+ return_UINT32(ACPI_NS_NORMAL);
+ }
+
+ return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_node
+ *
+ * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The
+ * \ (backslash) and ^ (carat) prefixes, and the
+ * . (period) to separate segments are supported.
+ * prefix_node - Root of subtree to be searched, or NS_ALL for the
+ * root of the name space. If Name is fully
+ * qualified (first s8 is '\'), the passed value
+ * of Scope will not be accessed.
+ * Flags - Used to indicate whether to perform upsearch or
+ * not.
+ * return_node - Where the Node is returned
+ *
+ * DESCRIPTION: Look up a name relative to a given scope and return the
+ * corresponding Node. NOTE: Scope can be null.
+ *
+ * MUTEX: Locks namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
+ const char *pathname,
+ u32 flags, struct acpi_namespace_node **return_node)
+{
+ union acpi_generic_state scope_info;
+ acpi_status status;
+ char *internal_path;
+
+ ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname);
+
+ if (!pathname) {
+ *return_node = prefix_node;
+ if (!prefix_node) {
+ *return_node = acpi_gbl_root_node;
+ }
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Convert path to internal representation */
+
+ status = acpi_ns_internalize_name(pathname, &internal_path);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Must lock namespace during lookup */
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Setup lookup scope (search starting point) */
+
+ scope_info.scope.node = prefix_node;
+
+ /* Lookup the name in the namespace */
+
+ status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE,
+ (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL,
+ return_node);
+ if (ACPI_FAILURE(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n",
+ pathname, acpi_format_exception(status)));
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+ cleanup:
+ ACPI_FREE(internal_path);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_parent_node
+ *
+ * PARAMETERS: Node - Current table entry
+ *
+ * RETURN: Parent entry of the given entry
+ *
+ * DESCRIPTION: Obtain the parent entry for a given entry in the namespace.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node
+ *node)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ if (!node) {
+ return (NULL);
+ }
+
+ /*
+ * Walk to the end of this peer list. The last entry is marked with a flag
+ * and the peer pointer is really a pointer back to the parent. This saves
+ * putting a parent back pointer in each and every named object!
+ */
+ while (!(node->flags & ANOBJ_END_OF_PEER_LIST)) {
+ node = node->peer;
+ }
+
+ return (node->peer);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_next_valid_node
+ *
+ * PARAMETERS: Node - Current table entry
+ *
+ * RETURN: Next valid Node in the linked node list. NULL if no more valid
+ * nodes.
+ *
+ * DESCRIPTION: Find the next valid node within a name table.
+ * Useful for implementing NULL-end-of-list loops.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct
+ acpi_namespace_node
+ *node)
+{
+
+ /* If we are at the end of this peer list, return NULL */
+
+ if (node->flags & ANOBJ_END_OF_PEER_LIST) {
+ return NULL;
+ }
+
+ /* Otherwise just return the next peer */
+
+ return (node->peer);
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_find_parent_name
+ *
+ * PARAMETERS: *child_node - Named Obj whose name is to be found
+ *
+ * RETURN: The ACPI name
+ *
+ * DESCRIPTION: Search for the given obj in its parent scope and return the
+ * name segment, or "????" if the parent name can't be found
+ * (which "should not happen").
+ *
+ ******************************************************************************/
+
+acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node)
+{
+ struct acpi_namespace_node *parent_node;
+
+ ACPI_FUNCTION_TRACE(ns_find_parent_name);
+
+ if (child_node) {
+
+ /* Valid entry. Get the parent Node */
+
+ parent_node = acpi_ns_get_parent_node(child_node);
+ if (parent_node) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Parent of %p [%4.4s] is %p [%4.4s]\n",
+ child_node,
+ acpi_ut_get_node_name(child_node),
+ parent_node,
+ acpi_ut_get_node_name(parent_node)));
+
+ if (parent_node->name.integer) {
+ return_VALUE((acpi_name) parent_node->name.
+ integer);
+ }
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Unable to find parent of %p (%4.4s)\n",
+ child_node,
+ acpi_ut_get_node_name(child_node)));
+ }
+
+ return_VALUE(ACPI_UNKNOWN_NAME);
+}
+#endif
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nswalk - Functions for walking the ACPI namespace
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nswalk")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_next_node
+ *
+ * PARAMETERS: Type - Type of node to be searched for
+ * parent_node - Parent node whose children we are
+ * getting
+ * child_node - Previous child that was found.
+ * The NEXT child will be returned
+ *
+ * RETURN: struct acpi_namespace_node - Pointer to the NEXT child or NULL if
+ * none is found.
+ *
+ * DESCRIPTION: Return the next peer node within the namespace. If Handle
+ * is valid, Scope is ignored. Otherwise, the first node
+ * within Scope is returned.
+ *
+ ******************************************************************************/
+struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
+ *parent_node, struct acpi_namespace_node
+ *child_node)
+{
+ struct acpi_namespace_node *next_node = NULL;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!child_node) {
+
+ /* It's really the parent's _scope_ that we want */
+
+ next_node = parent_node->child;
+ }
+
+ else {
+ /* Start search at the NEXT node */
+
+ next_node = acpi_ns_get_next_valid_node(child_node);
+ }
+
+ /* If any type is OK, we are done */
+
+ if (type == ACPI_TYPE_ANY) {
+
+ /* next_node is NULL if we are at the end-of-list */
+
+ return (next_node);
+ }
+
+ /* Must search for the node -- but within this scope only */
+
+ while (next_node) {
+
+ /* If type matches, we are done */
+
+ if (next_node->type == type) {
+ return (next_node);
+ }
+
+ /* Otherwise, move on to the next node */
+
+ next_node = acpi_ns_get_next_valid_node(next_node);
+ }
+
+ /* Not found */
+
+ return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_walk_namespace
+ *
+ * PARAMETERS: Type - acpi_object_type to search for
+ * start_node - Handle in namespace where search begins
+ * max_depth - Depth to which search is to reach
+ * Flags - Whether to unlock the NS before invoking
+ * the callback routine
+ * user_function - Called when an object of "Type" is found
+ * Context - Passed to user function
+ * return_value - from the user_function if terminated early.
+ * Otherwise, returns NULL.
+ * RETURNS: Status
+ *
+ * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
+ * starting (and ending) at the node specified by start_handle.
+ * The user_function is called whenever a node that matches
+ * the type parameter is found. If the user function returns
+ * a non-zero value, the search is terminated immediately and this
+ * value is returned to the caller.
+ *
+ * The point of this procedure is to provide a generic namespace
+ * walk routine that can be called from multiple places to
+ * provide multiple services; the User Function can be tailored
+ * to each task, whether it is a print function, a compare
+ * function, etc.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_walk_namespace(acpi_object_type type,
+ acpi_handle start_node,
+ u32 max_depth,
+ u32 flags,
+ acpi_walk_callback user_function,
+ void *context, void **return_value)
+{
+ acpi_status status;
+ acpi_status mutex_status;
+ struct acpi_namespace_node *child_node;
+ struct acpi_namespace_node *parent_node;
+ acpi_object_type child_type;
+ u32 level;
+
+ ACPI_FUNCTION_TRACE(ns_walk_namespace);
+
+ /* Special case for the namespace Root Node */
+
+ if (start_node == ACPI_ROOT_OBJECT) {
+ start_node = acpi_gbl_root_node;
+ }
+
+ /* Null child means "get first node" */
+
+ parent_node = start_node;
+ child_node = NULL;
+ child_type = ACPI_TYPE_ANY;
+ level = 1;
+
+ /*
+ * Traverse the tree of nodes until we bubble back up to where we
+ * started. When Level is zero, the loop is done because we have
+ * bubbled up to (and passed) the original parent handle (start_entry)
+ */
+ while (level > 0) {
+
+ /* Get the next node in this scope. Null if not found */
+
+ status = AE_OK;
+ child_node =
+ acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
+ child_node);
+ if (child_node) {
+
+ /* Found next child, get the type if we are not searching for ANY */
+
+ if (type != ACPI_TYPE_ANY) {
+ child_type = child_node->type;
+ }
+
+ /*
+ * Ignore all temporary namespace nodes (created during control
+ * method execution) unless told otherwise. These temporary nodes
+ * can cause a race condition because they can be deleted during the
+ * execution of the user function (if the namespace is unlocked before
+ * invocation of the user function.) Only the debugger namespace dump
+ * will examine the temporary nodes.
+ */
+ if ((child_node->flags & ANOBJ_TEMPORARY) &&
+ !(flags & ACPI_NS_WALK_TEMP_NODES)) {
+ status = AE_CTRL_DEPTH;
+ }
+
+ /* Type must match requested type */
+
+ else if (child_type == type) {
+ /*
+ * Found a matching node, invoke the user callback function.
+ * Unlock the namespace if flag is set.
+ */
+ if (flags & ACPI_NS_WALK_UNLOCK) {
+ mutex_status =
+ acpi_ut_release_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(mutex_status)) {
+ return_ACPI_STATUS
+ (mutex_status);
+ }
+ }
+
+ status =
+ user_function(child_node, level, context,
+ return_value);
+
+ if (flags & ACPI_NS_WALK_UNLOCK) {
+ mutex_status =
+ acpi_ut_acquire_mutex
+ (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(mutex_status)) {
+ return_ACPI_STATUS
+ (mutex_status);
+ }
+ }
+
+ switch (status) {
+ case AE_OK:
+ case AE_CTRL_DEPTH:
+
+ /* Just keep going */
+ break;
+
+ case AE_CTRL_TERMINATE:
+
+ /* Exit now, with OK status */
+
+ return_ACPI_STATUS(AE_OK);
+
+ default:
+
+ /* All others are valid exceptions */
+
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Depth first search: Attempt to go down another level in the
+ * namespace if we are allowed to. Don't go any further if we have
+ * reached the caller specified maximum depth or if the user
+ * function has specified that the maximum depth has been reached.
+ */
+ if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
+ if (acpi_ns_get_next_node
+ (ACPI_TYPE_ANY, child_node, NULL)) {
+
+ /* There is at least one child of this node, visit it */
+
+ level++;
+ parent_node = child_node;
+ child_node = NULL;
+ }
+ }
+ } else {
+ /*
+ * No more children of this node (acpi_ns_get_next_node failed), go
+ * back upwards in the namespace tree to the node's parent.
+ */
+ level--;
+ child_node = parent_node;
+ parent_node = acpi_ns_get_parent_node(parent_node);
+ }
+ }
+
+ /* Complete walk, not terminated by user function */
+
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nsxfeval - Public interfaces to the ACPI subsystem
+ * ACPI Object evaluation interfaces
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsxfeval")
+
+/* Local prototypes */
+static void acpi_ns_resolve_references(struct acpi_evaluate_info *info);
+
+#ifdef ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_evaluate_object_typed
+ *
+ * PARAMETERS: Handle - Object handle (optional)
+ * Pathname - Object pathname (optional)
+ * external_params - List of parameters to pass to method,
+ * terminated by NULL. May be NULL
+ * if no parameters are being passed.
+ * return_buffer - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * return_type - Expected type of return object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Find and evaluate the given object, passing the given
+ * parameters if necessary. One of "Handle" or "Pathname" must
+ * be valid (non-null)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_evaluate_object_typed(acpi_handle handle,
+ acpi_string pathname,
+ struct acpi_object_list *external_params,
+ struct acpi_buffer *return_buffer,
+ acpi_object_type return_type)
+{
+ acpi_status status;
+ u8 must_free = FALSE;
+
+ ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed);
+
+ /* Return buffer must be valid */
+
+ if (!return_buffer) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (return_buffer->length == ACPI_ALLOCATE_BUFFER) {
+ must_free = TRUE;
+ }
+
+ /* Evaluate the object */
+
+ status =
+ acpi_evaluate_object(handle, pathname, external_params,
+ return_buffer);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Type ANY means "don't care" */
+
+ if (return_type == ACPI_TYPE_ANY) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ if (return_buffer->length == 0) {
+
+ /* Error because caller specifically asked for a return value */
+
+ ACPI_ERROR((AE_INFO, "No return value"));
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
+ /* Examine the object type returned from evaluate_object */
+
+ if (((union acpi_object *)return_buffer->pointer)->type == return_type) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Return object type does not match requested type */
+
+ ACPI_ERROR((AE_INFO,
+ "Incorrect return type [%s] requested [%s]",
+ acpi_ut_get_type_name(((union acpi_object *)return_buffer->
+ pointer)->type),
+ acpi_ut_get_type_name(return_type)));
+
+ if (must_free) {
+
+ /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
+
+ ACPI_FREE(return_buffer->pointer);
+ return_buffer->pointer = NULL;
+ }
+
+ return_buffer->length = 0;
+ return_ACPI_STATUS(AE_TYPE);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
+#endif /* ACPI_FUTURE_USAGE */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_evaluate_object
+ *
+ * PARAMETERS: Handle - Object handle (optional)
+ * Pathname - Object pathname (optional)
+ * external_params - List of parameters to pass to method,
+ * terminated by NULL. May be NULL
+ * if no parameters are being passed.
+ * return_buffer - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Find and evaluate the given object, passing the given
+ * parameters if necessary. One of "Handle" or "Pathname" must
+ * be valid (non-null)
+ *
+ ******************************************************************************/
+acpi_status
+acpi_evaluate_object(acpi_handle handle,
+ acpi_string pathname,
+ struct acpi_object_list *external_params,
+ struct acpi_buffer *return_buffer)
+{
+ acpi_status status;
+ struct acpi_evaluate_info *info;
+ acpi_size buffer_space_needed;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(acpi_evaluate_object);
+
+ /* Allocate and initialize the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->pathname = pathname;
+
+ /* Convert and validate the device handle */
+
+ info->prefix_node = acpi_ns_map_handle_to_node(handle);
+ if (!info->prefix_node) {
+ status = AE_BAD_PARAMETER;
+ goto cleanup;
+ }
+
+ /*
+ * If there are parameters to be passed to a control method, the external
+ * objects must all be converted to internal objects
+ */
+ if (external_params && external_params->count) {
+ /*
+ * Allocate a new parameter block for the internal objects
+ * Add 1 to count to allow for null terminated internal list
+ */
+ info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size)
+ external_params->
+ count +
+ 1) * sizeof(void *));
+ if (!info->parameters) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Convert each external object in the list to an internal object */
+
+ for (i = 0; i < external_params->count; i++) {
+ status =
+ acpi_ut_copy_eobject_to_iobject(&external_params->
+ pointer[i],
+ &info->
+ parameters[i]);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+ }
+ info->parameters[external_params->count] = NULL;
+ }
+
+ /*
+ * Three major cases:
+ * 1) Fully qualified pathname
+ * 2) No handle, not fully qualified pathname (error)
+ * 3) Valid handle
+ */
+ if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) {
+
+ /* The path is fully qualified, just evaluate by name */
+
+ info->prefix_node = NULL;
+ status = acpi_ns_evaluate(info);
+ } else if (!handle) {
+ /*
+ * A handle is optional iff a fully qualified pathname is specified.
+ * Since we've already handled fully qualified names above, this is
+ * an error
+ */
+ if (!pathname) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Both Handle and Pathname are NULL"));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Null Handle with relative pathname [%s]",
+ pathname));
+ }
+
+ status = AE_BAD_PARAMETER;
+ } else {
+ /* We have a namespace a node and a possible relative path */
+
+ status = acpi_ns_evaluate(info);
+ }
+
+ /*
+ * If we are expecting a return value, and all went well above,
+ * copy the return value to an external object.
+ */
+ if (return_buffer) {
+ if (!info->return_object) {
+ return_buffer->length = 0;
+ } else {
+ if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) ==
+ ACPI_DESC_TYPE_NAMED) {
+ /*
+ * If we received a NS Node as a return object, this means that
+ * the object we are evaluating has nothing interesting to
+ * return (such as a mutex, etc.) We return an error because
+ * these types are essentially unsupported by this interface.
+ * We don't check up front because this makes it easier to add
+ * support for various types at a later date if necessary.
+ */
+ status = AE_TYPE;
+ info->return_object = NULL; /* No need to delete a NS Node */
+ return_buffer->length = 0;
+ }
+
+ if (ACPI_SUCCESS(status)) {
+
+ /* Dereference Index and ref_of references */
+
+ acpi_ns_resolve_references(info);
+
+ /* Get the size of the returned object */
+
+ status =
+ acpi_ut_get_object_size(info->return_object,
+ &buffer_space_needed);
+ if (ACPI_SUCCESS(status)) {
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status =
+ acpi_ut_initialize_buffer
+ (return_buffer,
+ buffer_space_needed);
+ if (ACPI_FAILURE(status)) {
+ /*
+ * Caller's buffer is too small or a new one can't
+ * be allocated
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Needed buffer size %X, %s\n",
+ (u32)
+ buffer_space_needed,
+ acpi_format_exception
+ (status)));
+ } else {
+ /* We have enough space for the object, build it */
+
+ status =
+ acpi_ut_copy_iobject_to_eobject
+ (info->return_object,
+ return_buffer);
+ }
+ }
+ }
+ }
+ }
+
+ if (info->return_object) {
+ /*
+ * Delete the internal return object. NOTE: Interpreter must be
+ * locked to avoid race condition.
+ */
+ acpi_ex_enter_interpreter();
+
+ /* Remove one reference on the return object (should delete it) */
+
+ acpi_ut_remove_reference(info->return_object);
+ acpi_ex_exit_interpreter();
+ }
+
+ cleanup:
+
+ /* Free the input parameter list (if we created one) */
+
+ if (info->parameters) {
+
+ /* Free the allocated parameter block */
+
+ acpi_ut_delete_internal_object_list(info->parameters);
+ }
+
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_evaluate_object)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_resolve_references
+ *
+ * PARAMETERS: Info - Evaluation info block
+ *
+ * RETURN: Info->return_object is replaced with the dereferenced object
+ *
+ * DESCRIPTION: Dereference certain reference objects. Called before an
+ * internal return object is converted to an external union acpi_object.
+ *
+ * Performs an automatic dereference of Index and ref_of reference objects.
+ * These reference objects are not supported by the union acpi_object, so this is a
+ * last resort effort to return something useful. Also, provides compatibility
+ * with other ACPI implementations.
+ *
+ * NOTE: does not handle references within returned package objects or nested
+ * references, but this support could be added later if found to be necessary.
+ *
+ ******************************************************************************/
+static void acpi_ns_resolve_references(struct acpi_evaluate_info *info)
+{
+ union acpi_operand_object *obj_desc = NULL;
+ struct acpi_namespace_node *node;
+
+ /* We are interested in reference objects only */
+
+ if (ACPI_GET_OBJECT_TYPE(info->return_object) !=
+ ACPI_TYPE_LOCAL_REFERENCE) {
+ return;
+ }
+
+ /*
+ * Two types of references are supported - those created by Index and
+ * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted
+ * to an union acpi_object, so it is not dereferenced here. A ddb_handle
+ * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to
+ * an union acpi_object.
+ */
+ switch (info->return_object->reference.class) {
+ case ACPI_REFCLASS_INDEX:
+
+ obj_desc = *(info->return_object->reference.where);
+ break;
+
+ case ACPI_REFCLASS_REFOF:
+
+ node = info->return_object->reference.object;
+ if (node) {
+ obj_desc = node->object;
+ }
+ break;
+
+ default:
+ return;
+ }
+
+ /* Replace the existing reference object */
+
+ if (obj_desc) {
+ acpi_ut_add_reference(obj_desc);
+ acpi_ut_remove_reference(info->return_object);
+ info->return_object = obj_desc;
+ }
+
+ return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_walk_namespace
+ *
+ * PARAMETERS: Type - acpi_object_type to search for
+ * start_object - Handle in namespace where search begins
+ * max_depth - Depth to which search is to reach
+ * user_function - Called when an object of "Type" is found
+ * Context - Passed to user function
+ * return_value - Location where return value of
+ * user_function is put if terminated early
+ *
+ * RETURNS Return value from the user_function if terminated early.
+ * Otherwise, returns NULL.
+ *
+ * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
+ * starting (and ending) at the object specified by start_handle.
+ * The user_function is called whenever an object that matches
+ * the type parameter is found. If the user function returns
+ * a non-zero value, the search is terminated immediately and this
+ * value is returned to the caller.
+ *
+ * The point of this procedure is to provide a generic namespace
+ * walk routine that can be called from multiple places to
+ * provide multiple services; the User Function can be tailored
+ * to each task, whether it is a print function, a compare
+ * function, etc.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_walk_namespace(acpi_object_type type,
+ acpi_handle start_object,
+ u32 max_depth,
+ acpi_walk_callback user_function,
+ void *context, void **return_value)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_walk_namespace);
+
+ /* Parameter validation */
+
+ if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Lock the namespace around the walk.
+ * The namespace will be unlocked/locked around each call
+ * to the user function - since this function
+ * must be allowed to make Acpi calls itself.
+ */
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_ns_walk_namespace(type, start_object, max_depth,
+ ACPI_NS_WALK_UNLOCK,
+ user_function, context, return_value);
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_walk_namespace)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ns_get_device_callback
+ *
+ * PARAMETERS: Callback from acpi_get_device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Takes callbacks from walk_namespace and filters out all non-
+ * present devices, or if they specified a HID, it filters based
+ * on that.
+ *
+ ******************************************************************************/
+static acpi_status
+acpi_ns_get_device_callback(acpi_handle obj_handle,
+ u32 nesting_level,
+ void *context, void **return_value)
+{
+ struct acpi_get_devices_info *info = context;
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ u32 flags;
+ struct acpica_device_id hid;
+ struct acpi_compatible_id_list *cid;
+ u32 i;
+ int found;
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ node = acpi_ns_map_handle_to_node(obj_handle);
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ if (!node) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Run _STA to determine if device is present */
+
+ status = acpi_ut_execute_STA(node, &flags);
+ if (ACPI_FAILURE(status)) {
+ return (AE_CTRL_DEPTH);
+ }
+
+ if (!(flags & ACPI_STA_DEVICE_PRESENT) &&
+ !(flags & ACPI_STA_DEVICE_FUNCTIONING)) {
+ /*
+ * Don't examine the children of the device only when the
+ * device is neither present nor functional. See ACPI spec,
+ * description of _STA for more information.
+ */
+ return (AE_CTRL_DEPTH);
+ }
+
+ /* Filter based on device HID & CID */
+
+ if (info->hid != NULL) {
+ status = acpi_ut_execute_HID(node, &hid);
+ if (status == AE_NOT_FOUND) {
+ return (AE_OK);
+ } else if (ACPI_FAILURE(status)) {
+ return (AE_CTRL_DEPTH);
+ }
+
+ if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) {
+
+ /* Get the list of Compatible IDs */
+
+ status = acpi_ut_execute_CID(node, &cid);
+ if (status == AE_NOT_FOUND) {
+ return (AE_OK);
+ } else if (ACPI_FAILURE(status)) {
+ return (AE_CTRL_DEPTH);
+ }
+
+ /* Walk the CID list */
+
+ found = 0;
+ for (i = 0; i < cid->count; i++) {
+ if (ACPI_STRNCMP(cid->id[i].value, info->hid,
+ sizeof(struct
+ acpi_compatible_id)) ==
+ 0) {
+ found = 1;
+ break;
+ }
+ }
+ ACPI_FREE(cid);
+ if (!found)
+ return (AE_OK);
+ }
+ }
+
+ status = info->user_function(obj_handle, nesting_level, info->context,
+ return_value);
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_devices
+ *
+ * PARAMETERS: HID - HID to search for. Can be NULL.
+ * user_function - Called when a matching object is found
+ * Context - Passed to user function
+ * return_value - Location where return value of
+ * user_function is put if terminated early
+ *
+ * RETURNS Return value from the user_function if terminated early.
+ * Otherwise, returns NULL.
+ *
+ * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
+ * starting (and ending) at the object specified by start_handle.
+ * The user_function is called whenever an object of type
+ * Device is found. If the user function returns
+ * a non-zero value, the search is terminated immediately and this
+ * value is returned to the caller.
+ *
+ * This is a wrapper for walk_namespace, but the callback performs
+ * additional filtering. Please see acpi_ns_get_device_callback.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_devices(const char *HID,
+ acpi_walk_callback user_function,
+ void *context, void **return_value)
+{
+ acpi_status status;
+ struct acpi_get_devices_info info;
+
+ ACPI_FUNCTION_TRACE(acpi_get_devices);
+
+ /* Parameter validation */
+
+ if (!user_function) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * We're going to call their callback from OUR callback, so we need
+ * to know what it is, and their context parameter.
+ */
+ info.hid = HID;
+ info.context = context;
+ info.user_function = user_function;
+
+ /*
+ * Lock the namespace around the walk.
+ * The namespace will be unlocked/locked around each call
+ * to the user function - since this function
+ * must be allowed to make Acpi calls itself.
+ */
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
+ acpi_ns_get_device_callback, &info,
+ return_value);
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_devices)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_attach_data
+ *
+ * PARAMETERS: obj_handle - Namespace node
+ * Handler - Handler for this attachment
+ * Data - Pointer to data to be attached
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Attach arbitrary data and handler to a namespace node.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_attach_data(acpi_handle obj_handle,
+ acpi_object_handler handler, void *data)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ /* Parameter validation */
+
+ if (!obj_handle || !handler || !data) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Convert and validate the handle */
+
+ node = acpi_ns_map_handle_to_node(obj_handle);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ status = acpi_ns_attach_data(node, handler, data);
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_attach_data)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_detach_data
+ *
+ * PARAMETERS: obj_handle - Namespace node handle
+ * Handler - Handler used in call to acpi_attach_data
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove data that was previously attached to a node.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ /* Parameter validation */
+
+ if (!obj_handle || !handler) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Convert and validate the handle */
+
+ node = acpi_ns_map_handle_to_node(obj_handle);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ status = acpi_ns_detach_data(node, handler);
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_detach_data)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_data
+ *
+ * PARAMETERS: obj_handle - Namespace node
+ * Handler - Handler used in call to attach_data
+ * Data - Where the data is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ /* Parameter validation */
+
+ if (!obj_handle || !handler || !data) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Convert and validate the handle */
+
+ node = acpi_ns_map_handle_to_node(obj_handle);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ status = acpi_ns_get_attached_data(node, handler, data);
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_data)
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: nsxfname - Public interfaces to the ACPI subsystem
+ * ACPI Namespace oriented interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsxfname")
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_handle
+ *
+ * PARAMETERS: Parent - Object to search under (search scope).
+ * Pathname - Pointer to an asciiz string containing the
+ * name
+ * ret_handle - Where the return handle is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This routine will search for a caller specified name in the
+ * name space. The caller can restrict the search region by
+ * specifying a non NULL parent. The parent value is itself a
+ * namespace handle.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_handle(acpi_handle parent,
+ acpi_string pathname, acpi_handle * ret_handle)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node = NULL;
+ struct acpi_namespace_node *prefix_node = NULL;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Parameter Validation */
+
+ if (!ret_handle || !pathname) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Convert a parent handle to a prefix node */
+
+ if (parent) {
+ prefix_node = acpi_ns_map_handle_to_node(parent);
+ if (!prefix_node) {
+ return (AE_BAD_PARAMETER);
+ }
+ }
+
+ /*
+ * Valid cases are:
+ * 1) Fully qualified pathname
+ * 2) Parent + Relative pathname
+ *
+ * Error for <null Parent + relative path>
+ */
+ if (acpi_ns_valid_root_prefix(pathname[0])) {
+
+ /* Pathname is fully qualified (starts with '\') */
+
+ /* Special case for root-only, since we can't search for it */
+
+ if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
+ *ret_handle =
+ acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
+ return (AE_OK);
+ }
+ } else if (!prefix_node) {
+
+ /* Relative path with null prefix is disallowed */
+
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Find the Node and convert to a handle */
+
+ status =
+ acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node);
+ if (ACPI_SUCCESS(status)) {
+ *ret_handle = acpi_ns_convert_entry_to_handle(node);
+ }
+
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_handle)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_name
+ *
+ * PARAMETERS: Handle - Handle to be converted to a pathname
+ * name_type - Full pathname or single segment
+ * Buffer - Buffer for returned path
+ *
+ * RETURN: Pointer to a string containing the fully qualified Name.
+ *
+ * DESCRIPTION: This routine returns the fully qualified name associated with
+ * the Handle parameter. This and the acpi_pathname_to_handle are
+ * complementary functions.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ /* Parameter validation */
+
+ if (name_type > ACPI_NAME_TYPE_MAX) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_validate_buffer(buffer);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ if (name_type == ACPI_FULL_PATHNAME) {
+
+ /* Get the full pathname (From the namespace root) */
+
+ status = acpi_ns_handle_to_pathname(handle, buffer);
+ return (status);
+ }
+
+ /*
+ * Wants the single segment ACPI name.
+ * Validate handle and convert to a namespace Node
+ */
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ node = acpi_ns_map_handle_to_node(handle);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
+ if (ACPI_FAILURE(status)) {
+ goto unlock_and_exit;
+ }
+
+ /* Just copy the ACPI name from the Node and zero terminate it */
+
+ ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node),
+ ACPI_NAME_SIZE);
+ ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
+ status = AE_OK;
+
+ unlock_and_exit:
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_name)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_object_info
+ *
+ * PARAMETERS: Handle - Object Handle
+ * Buffer - Where the info is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Returns information about an object as gleaned from the
+ * namespace node and possibly by running several standard
+ * control methods (Such as in the case of a device.)
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ struct acpi_device_info *info;
+ struct acpi_device_info *return_info;
+ struct acpi_compatible_id_list *cid_list = NULL;
+ acpi_size size;
+
+ /* Parameter validation */
+
+ if (!handle || !buffer) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_validate_buffer(buffer);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
+ if (!info) {
+ return (AE_NO_MEMORY);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ node = acpi_ns_map_handle_to_node(handle);
+ if (!node) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ status = AE_BAD_PARAMETER;
+ goto cleanup;
+ }
+
+ /* Init return structure */
+
+ size = sizeof(struct acpi_device_info);
+
+ info->type = node->type;
+ info->name = node->name.integer;
+ info->valid = 0;
+
+ if (node->type == ACPI_TYPE_METHOD) {
+ info->param_count = node->object->method.param_count;
+ }
+
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* If not a device, we are all done */
+
+ if (info->type == ACPI_TYPE_DEVICE) {
+ /*
+ * Get extra info for ACPI Devices objects only:
+ * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
+ *
+ * Note: none of these methods are required, so they may or may
+ * not be present for this device. The Info->Valid bitfield is used
+ * to indicate which methods were found and ran successfully.
+ */
+
+ /* Execute the Device._HID method */
+
+ status = acpi_ut_execute_HID(node, &info->hardware_id);
+ if (ACPI_SUCCESS(status)) {
+ info->valid |= ACPI_VALID_HID;
+ }
+
+ /* Execute the Device._UID method */
+
+ status = acpi_ut_execute_UID(node, &info->unique_id);
+ if (ACPI_SUCCESS(status)) {
+ info->valid |= ACPI_VALID_UID;
+ }
+
+ /* Execute the Device._CID method */
+
+ status = acpi_ut_execute_CID(node, &cid_list);
+ if (ACPI_SUCCESS(status)) {
+ size += cid_list->size;
+ info->valid |= ACPI_VALID_CID;
+ }
+
+ /* Execute the Device._STA method */
+
+ status = acpi_ut_execute_STA(node, &info->current_status);
+ if (ACPI_SUCCESS(status)) {
+ info->valid |= ACPI_VALID_STA;
+ }
+
+ /* Execute the Device._ADR method */
+
+ status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
+ &info->address);
+ if (ACPI_SUCCESS(status)) {
+ info->valid |= ACPI_VALID_ADR;
+ }
+
+ /* Execute the Device._sx_d methods */
+
+ status = acpi_ut_execute_sxds(node, info->highest_dstates);
+ if (ACPI_SUCCESS(status)) {
+ info->valid |= ACPI_VALID_SXDS;
+ }
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status = acpi_ut_initialize_buffer(buffer, size);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Populate the return buffer */
+
+ return_info = buffer->pointer;
+ ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
+
+ if (cid_list) {
+ ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
+ cid_list->size);
+ }
+
+ cleanup:
+ ACPI_FREE(info);
+ if (cid_list) {
+ ACPI_FREE(cid_list);
+ }
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_object_info)
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: nsxfobj - Public interfaces to the ACPI subsystem
+ * ACPI Object oriented interfaces
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ACPI_MODULE_NAME("nsxfobj")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_id
+ *
+ * PARAMETERS: Handle - Handle of object whose id is desired
+ * ret_id - Where the id will be placed
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This routine returns the owner id associated with a handle
+ *
+ ******************************************************************************/
+acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ /* Parameter Validation */
+
+ if (!ret_id) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Convert and validate the handle */
+
+ node = acpi_ns_map_handle_to_node(handle);
+ if (!node) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (AE_BAD_PARAMETER);
+ }
+
+ *ret_id = node->owner_id;
+
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_id)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_type
+ *
+ * PARAMETERS: Handle - Handle of object whose type is desired
+ * ret_type - Where the type will be placed
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This routine returns the type associatd with a particular handle
+ *
+ ******************************************************************************/
+acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ /* Parameter Validation */
+
+ if (!ret_type) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Special case for the predefined Root Node
+ * (return type ANY)
+ */
+ if (handle == ACPI_ROOT_OBJECT) {
+ *ret_type = ACPI_TYPE_ANY;
+ return (AE_OK);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Convert and validate the handle */
+
+ node = acpi_ns_map_handle_to_node(handle);
+ if (!node) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (AE_BAD_PARAMETER);
+ }
+
+ *ret_type = node->type;
+
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_type)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_parent
+ *
+ * PARAMETERS: Handle - Handle of object whose parent is desired
+ * ret_handle - Where the parent handle will be placed
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Returns a handle to the parent of the object represented by
+ * Handle.
+ *
+ ******************************************************************************/
+acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
+{
+ struct acpi_namespace_node *node;
+ acpi_status status;
+
+ if (!ret_handle) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Special case for the predefined Root Node (no parent) */
+
+ if (handle == ACPI_ROOT_OBJECT) {
+ return (AE_NULL_ENTRY);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Convert and validate the handle */
+
+ node = acpi_ns_map_handle_to_node(handle);
+ if (!node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+
+ /* Get the parent entry */
+
+ *ret_handle =
+ acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node));
+
+ /* Return exception if parent is null */
+
+ if (!acpi_ns_get_parent_node(node)) {
+ status = AE_NULL_ENTRY;
+ }
+
+ unlock_and_exit:
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_parent)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_next_object
+ *
+ * PARAMETERS: Type - Type of object to be searched for
+ * Parent - Parent object whose children we are getting
+ * last_child - Previous child that was found.
+ * The NEXT child will be returned
+ * ret_handle - Where handle to the next object is placed
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return the next peer object within the namespace. If Handle is
+ * valid, Scope is ignored. Otherwise, the first object within
+ * Scope is returned.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_next_object(acpi_object_type type,
+ acpi_handle parent,
+ acpi_handle child, acpi_handle * ret_handle)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+ struct acpi_namespace_node *parent_node = NULL;
+ struct acpi_namespace_node *child_node = NULL;
+
+ /* Parameter validation */
+
+ if (type > ACPI_TYPE_EXTERNAL_MAX) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* If null handle, use the parent */
+
+ if (!child) {
+
+ /* Start search at the beginning of the specified scope */
+
+ parent_node = acpi_ns_map_handle_to_node(parent);
+ if (!parent_node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+ } else {
+ /* Non-null handle, ignore the parent */
+ /* Convert and validate the handle */
+
+ child_node = acpi_ns_map_handle_to_node(child);
+ if (!child_node) {
+ status = AE_BAD_PARAMETER;
+ goto unlock_and_exit;
+ }
+ }
+
+ /* Internal function does the real work */
+
+ node = acpi_ns_get_next_node(type, parent_node, child_node);
+ if (!node) {
+ status = AE_NOT_FOUND;
+ goto unlock_and_exit;
+ }
+
+ if (ret_handle) {
+ *ret_handle = acpi_ns_convert_entry_to_handle(node);
+ }
+
+ unlock_and_exit:
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_next_object)
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psargs - Parse AML opcode arguments
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psargs")
+
+/* Local prototypes */
+static u32
+acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state);
+
+static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
+ *parser_state);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_package_length
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: Decoded package length. On completion, the AML pointer points
+ * past the length byte or bytes.
+ *
+ * DESCRIPTION: Decode and return a package length field.
+ * Note: Largest package length is 28 bits, from ACPI specification
+ *
+ ******************************************************************************/
+
+static u32
+acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
+{
+ u8 *aml = parser_state->aml;
+ u32 package_length = 0;
+ u32 byte_count;
+ u8 byte_zero_mask = 0x3F; /* Default [0:5] */
+
+ ACPI_FUNCTION_TRACE(ps_get_next_package_length);
+
+ /*
+ * Byte 0 bits [6:7] contain the number of additional bytes
+ * used to encode the package length, either 0,1,2, or 3
+ */
+ byte_count = (aml[0] >> 6);
+ parser_state->aml += ((acpi_size) byte_count + 1);
+
+ /* Get bytes 3, 2, 1 as needed */
+
+ while (byte_count) {
+ /*
+ * Final bit positions for the package length bytes:
+ * Byte3->[20:27]
+ * Byte2->[12:19]
+ * Byte1->[04:11]
+ * Byte0->[00:03]
+ */
+ package_length |= (aml[byte_count] << ((byte_count << 3) - 4));
+
+ byte_zero_mask = 0x0F; /* Use bits [0:3] of byte 0 */
+ byte_count--;
+ }
+
+ /* Byte 0 is a special case, either bits [0:3] or [0:5] are used */
+
+ package_length |= (aml[0] & byte_zero_mask);
+ return_UINT32(package_length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_package_end
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: Pointer to end-of-package +1
+ *
+ * DESCRIPTION: Get next package length and return a pointer past the end of
+ * the package. Consumes the package length field
+ *
+ ******************************************************************************/
+
+u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state)
+{
+ u8 *start = parser_state->aml;
+ u32 package_length;
+
+ ACPI_FUNCTION_TRACE(ps_get_next_package_end);
+
+ /* Function below updates parser_state->Aml */
+
+ package_length = acpi_ps_get_next_package_length(parser_state);
+
+ return_PTR(start + package_length); /* end of package */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_namestring
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: Pointer to the start of the name string (pointer points into
+ * the AML.
+ *
+ * DESCRIPTION: Get next raw namestring within the AML stream. Handles all name
+ * prefix characters. Set parser state to point past the string.
+ * (Name is consumed from the AML.)
+ *
+ ******************************************************************************/
+
+char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state)
+{
+ u8 *start = parser_state->aml;
+ u8 *end = parser_state->aml;
+
+ ACPI_FUNCTION_TRACE(ps_get_next_namestring);
+
+ /* Point past any namestring prefix characters (backslash or carat) */
+
+ while (acpi_ps_is_prefix_char(*end)) {
+ end++;
+ }
+
+ /* Decode the path prefix character */
+
+ switch (*end) {
+ case 0:
+
+ /* null_name */
+
+ if (end == start) {
+ start = NULL;
+ }
+ end++;
+ break;
+
+ case AML_DUAL_NAME_PREFIX:
+
+ /* Two name segments */
+
+ end += 1 + (2 * ACPI_NAME_SIZE);
+ break;
+
+ case AML_MULTI_NAME_PREFIX_OP:
+
+ /* Multiple name segments, 4 chars each, count in next byte */
+
+ end += 2 + (*(end + 1) * ACPI_NAME_SIZE);
+ break;
+
+ default:
+
+ /* Single name segment */
+
+ end += ACPI_NAME_SIZE;
+ break;
+ }
+
+ parser_state->aml = end;
+ return_PTR((char *)start);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_namepath
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ * Arg - Where the namepath will be stored
+ * arg_count - If the namepath points to a control method
+ * the method's argument is returned here.
+ * possible_method_call - Whether the namepath can possibly be the
+ * start of a method call
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get next name (if method call, return # of required args).
+ * Names are looked up in the internal namespace to determine
+ * if the name represents a control method. If a method
+ * is found, the number of arguments to the method is returned.
+ * This information is critical for parsing to continue correctly.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
+ struct acpi_parse_state *parser_state,
+ union acpi_parse_object *arg, u8 possible_method_call)
+{
+ acpi_status status;
+ char *path;
+ union acpi_parse_object *name_op;
+ union acpi_operand_object *method_desc;
+ struct acpi_namespace_node *node;
+ u8 *start = parser_state->aml;
+
+ ACPI_FUNCTION_TRACE(ps_get_next_namepath);
+
+ path = acpi_ps_get_next_namestring(parser_state);
+ acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP);
+
+ /* Null path case is allowed, just exit */
+
+ if (!path) {
+ arg->common.value.name = path;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Lookup the name in the internal namespace, starting with the current
+ * scope. We don't want to add anything new to the namespace here,
+ * however, so we use MODE_EXECUTE.
+ * Allow searching of the parent tree, but don't open a new scope -
+ * we just want to lookup the object (must be mode EXECUTE to perform
+ * the upsearch)
+ */
+ status = acpi_ns_lookup(walk_state->scope_info, path,
+ ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+ ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
+ NULL, &node);
+
+ /*
+ * If this name is a control method invocation, we must
+ * setup the method call
+ */
+ if (ACPI_SUCCESS(status) &&
+ possible_method_call && (node->type == ACPI_TYPE_METHOD)) {
+ if (walk_state->opcode == AML_UNLOAD_OP) {
+ /*
+ * acpi_ps_get_next_namestring has increased the AML pointer,
+ * so we need to restore the saved AML pointer for method call.
+ */
+ walk_state->parser_state.aml = start;
+ walk_state->arg_count = 1;
+ acpi_ps_init_op(arg, AML_INT_METHODCALL_OP);
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* This name is actually a control method invocation */
+
+ method_desc = acpi_ns_get_attached_object(node);
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Control Method - %p Desc %p Path=%p\n", node,
+ method_desc, path));
+
+ name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
+ if (!name_op) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Change Arg into a METHOD CALL and attach name to it */
+
+ acpi_ps_init_op(arg, AML_INT_METHODCALL_OP);
+ name_op->common.value.name = path;
+
+ /* Point METHODCALL/NAME to the METHOD Node */
+
+ name_op->common.node = node;
+ acpi_ps_append_arg(arg, name_op);
+
+ if (!method_desc) {
+ ACPI_ERROR((AE_INFO,
+ "Control Method %p has no attached object",
+ node));
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Control Method - %p Args %X\n",
+ node, method_desc->method.param_count));
+
+ /* Get the number of arguments to expect */
+
+ walk_state->arg_count = method_desc->method.param_count;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Special handling if the name was not found during the lookup -
+ * some not_found cases are allowed
+ */
+ if (status == AE_NOT_FOUND) {
+
+ /* 1) not_found is ok during load pass 1/2 (allow forward references) */
+
+ if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) !=
+ ACPI_PARSE_EXECUTE) {
+ status = AE_OK;
+ }
+
+ /* 2) not_found during a cond_ref_of(x) is ok by definition */
+
+ else if (walk_state->op->common.aml_opcode ==
+ AML_COND_REF_OF_OP) {
+ status = AE_OK;
+ }
+
+ /*
+ * 3) not_found while building a Package is ok at this point, we
+ * may flag as an error later if slack mode is not enabled.
+ * (Some ASL code depends on allowing this behavior)
+ */
+ else if ((arg->common.parent) &&
+ ((arg->common.parent->common.aml_opcode ==
+ AML_PACKAGE_OP)
+ || (arg->common.parent->common.aml_opcode ==
+ AML_VAR_PACKAGE_OP))) {
+ status = AE_OK;
+ }
+ }
+
+ /* Final exception check (may have been changed from code above) */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_ERROR_NAMESPACE(path, status);
+
+ if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
+ ACPI_PARSE_EXECUTE) {
+
+ /* Report a control method execution error */
+
+ status = acpi_ds_method_error(status, walk_state);
+ }
+ }
+
+ /* Save the namepath */
+
+ arg->common.value.name = path;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_simple_arg
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ * arg_type - The argument type (AML_*_ARG)
+ * Arg - Where the argument is returned
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Get the next simple argument (constant, string, or namestring)
+ *
+ ******************************************************************************/
+
+void
+acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
+ u32 arg_type, union acpi_parse_object *arg)
+{
+ u32 length;
+ u16 opcode;
+ u8 *aml = parser_state->aml;
+
+ ACPI_FUNCTION_TRACE_U32(ps_get_next_simple_arg, arg_type);
+
+ switch (arg_type) {
+ case ARGP_BYTEDATA:
+
+ /* Get 1 byte from the AML stream */
+
+ opcode = AML_BYTE_OP;
+ arg->common.value.integer = (acpi_integer) * aml;
+ length = 1;
+ break;
+
+ case ARGP_WORDDATA:
+
+ /* Get 2 bytes from the AML stream */
+
+ opcode = AML_WORD_OP;
+ ACPI_MOVE_16_TO_64(&arg->common.value.integer, aml);
+ length = 2;
+ break;
+
+ case ARGP_DWORDDATA:
+
+ /* Get 4 bytes from the AML stream */
+
+ opcode = AML_DWORD_OP;
+ ACPI_MOVE_32_TO_64(&arg->common.value.integer, aml);
+ length = 4;
+ break;
+
+ case ARGP_QWORDDATA:
+
+ /* Get 8 bytes from the AML stream */
+
+ opcode = AML_QWORD_OP;
+ ACPI_MOVE_64_TO_64(&arg->common.value.integer, aml);
+ length = 8;
+ break;
+
+ case ARGP_CHARLIST:
+
+ /* Get a pointer to the string, point past the string */
+
+ opcode = AML_STRING_OP;
+ arg->common.value.string = ACPI_CAST_PTR(char, aml);
+
+ /* Find the null terminator */
+
+ length = 0;
+ while (aml[length]) {
+ length++;
+ }
+ length++;
+ break;
+
+ case ARGP_NAME:
+ case ARGP_NAMESTRING:
+
+ acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP);
+ arg->common.value.name =
+ acpi_ps_get_next_namestring(parser_state);
+ return_VOID;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type));
+ return_VOID;
+ }
+
+ acpi_ps_init_op(arg, opcode);
+ parser_state->aml += length;
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_field
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: A newly allocated FIELD op
+ *
+ * DESCRIPTION: Get next field (named_field, reserved_field, or access_field)
+ *
+ ******************************************************************************/
+
+static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
+ *parser_state)
+{
+ u32 aml_offset = (u32)
+ ACPI_PTR_DIFF(parser_state->aml,
+ parser_state->aml_start);
+ union acpi_parse_object *field;
+ u16 opcode;
+ u32 name;
+
+ ACPI_FUNCTION_TRACE(ps_get_next_field);
+
+ /* Determine field type */
+
+ switch (ACPI_GET8(parser_state->aml)) {
+ default:
+
+ opcode = AML_INT_NAMEDFIELD_OP;
+ break;
+
+ case 0x00:
+
+ opcode = AML_INT_RESERVEDFIELD_OP;
+ parser_state->aml++;
+ break;
+
+ case 0x01:
+
+ opcode = AML_INT_ACCESSFIELD_OP;
+ parser_state->aml++;
+ break;
+ }
+
+ /* Allocate a new field op */
+
+ field = acpi_ps_alloc_op(opcode);
+ if (!field) {
+ return_PTR(NULL);
+ }
+
+ field->common.aml_offset = aml_offset;
+
+ /* Decode the field type */
+
+ switch (opcode) {
+ case AML_INT_NAMEDFIELD_OP:
+
+ /* Get the 4-character name */
+
+ ACPI_MOVE_32_TO_32(&name, parser_state->aml);
+ acpi_ps_set_name(field, name);
+ parser_state->aml += ACPI_NAME_SIZE;
+
+ /* Get the length which is encoded as a package length */
+
+ field->common.value.size =
+ acpi_ps_get_next_package_length(parser_state);
+ break;
+
+ case AML_INT_RESERVEDFIELD_OP:
+
+ /* Get the length which is encoded as a package length */
+
+ field->common.value.size =
+ acpi_ps_get_next_package_length(parser_state);
+ break;
+
+ case AML_INT_ACCESSFIELD_OP:
+
+ /*
+ * Get access_type and access_attrib and merge into the field Op
+ * access_type is first operand, access_attribute is second
+ */
+ field->common.value.integer =
+ (((u32) ACPI_GET8(parser_state->aml) << 8));
+ parser_state->aml++;
+ field->common.value.integer |= ACPI_GET8(parser_state->aml);
+ parser_state->aml++;
+ break;
+
+ default:
+
+ /* Opcode was set in previous switch */
+ break;
+ }
+
+ return_PTR(field);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_next_arg
+ *
+ * PARAMETERS: walk_state - Current state
+ * parser_state - Current parser state object
+ * arg_type - The argument type (AML_*_ARG)
+ * return_arg - Where the next arg is returned
+ *
+ * RETURN: Status, and an op object containing the next argument.
+ *
+ * DESCRIPTION: Get next argument (including complex list arguments that require
+ * pushing the parser stack)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
+ struct acpi_parse_state *parser_state,
+ u32 arg_type, union acpi_parse_object **return_arg)
+{
+ union acpi_parse_object *arg = NULL;
+ union acpi_parse_object *prev = NULL;
+ union acpi_parse_object *field;
+ u32 subop;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_get_next_arg, parser_state);
+
+ switch (arg_type) {
+ case ARGP_BYTEDATA:
+ case ARGP_WORDDATA:
+ case ARGP_DWORDDATA:
+ case ARGP_CHARLIST:
+ case ARGP_NAME:
+ case ARGP_NAMESTRING:
+
+ /* Constants, strings, and namestrings are all the same size */
+
+ arg = acpi_ps_alloc_op(AML_BYTE_OP);
+ if (!arg) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ acpi_ps_get_next_simple_arg(parser_state, arg_type, arg);
+ break;
+
+ case ARGP_PKGLENGTH:
+
+ /* Package length, nothing returned */
+
+ parser_state->pkg_end =
+ acpi_ps_get_next_package_end(parser_state);
+ break;
+
+ case ARGP_FIELDLIST:
+
+ if (parser_state->aml < parser_state->pkg_end) {
+
+ /* Non-empty list */
+
+ while (parser_state->aml < parser_state->pkg_end) {
+ field = acpi_ps_get_next_field(parser_state);
+ if (!field) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ if (prev) {
+ prev->common.next = field;
+ } else {
+ arg = field;
+ }
+ prev = field;
+ }
+
+ /* Skip to End of byte data */
+
+ parser_state->aml = parser_state->pkg_end;
+ }
+ break;
+
+ case ARGP_BYTELIST:
+
+ if (parser_state->aml < parser_state->pkg_end) {
+
+ /* Non-empty list */
+
+ arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP);
+ if (!arg) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Fill in bytelist data */
+
+ arg->common.value.size = (u32)
+ ACPI_PTR_DIFF(parser_state->pkg_end,
+ parser_state->aml);
+ arg->named.data = parser_state->aml;
+
+ /* Skip to End of byte data */
+
+ parser_state->aml = parser_state->pkg_end;
+ }
+ break;
+
+ case ARGP_TARGET:
+ case ARGP_SUPERNAME:
+ case ARGP_SIMPLENAME:
+
+ subop = acpi_ps_peek_opcode(parser_state);
+ if (subop == 0 ||
+ acpi_ps_is_leading_char(subop) ||
+ acpi_ps_is_prefix_char(subop)) {
+
+ /* null_name or name_string */
+
+ arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
+ if (!arg) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* To support super_name arg of Unload */
+
+ if (walk_state->opcode == AML_UNLOAD_OP) {
+ status =
+ acpi_ps_get_next_namepath(walk_state,
+ parser_state, arg,
+ 1);
+
+ /*
+ * If the super_name arg of Unload is a method call,
+ * we have restored the AML pointer, just free this Arg
+ */
+ if (arg->common.aml_opcode ==
+ AML_INT_METHODCALL_OP) {
+ acpi_ps_free_op(arg);
+ arg = NULL;
+ }
+ } else {
+ status =
+ acpi_ps_get_next_namepath(walk_state,
+ parser_state, arg,
+ 0);
+ }
+ } else {
+ /* Single complex argument, nothing returned */
+
+ walk_state->arg_count = 1;
+ }
+ break;
+
+ case ARGP_DATAOBJ:
+ case ARGP_TERMARG:
+
+ /* Single complex argument, nothing returned */
+
+ walk_state->arg_count = 1;
+ break;
+
+ case ARGP_DATAOBJLIST:
+ case ARGP_TERMLIST:
+ case ARGP_OBJLIST:
+
+ if (parser_state->aml < parser_state->pkg_end) {
+
+ /* Non-empty list of variable arguments, nothing returned */
+
+ walk_state->arg_count = ACPI_VAR_ARGS;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type));
+ status = AE_AML_OPERAND_TYPE;
+ break;
+ }
+
+ *return_arg = arg;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psloop - Main AML parse loop
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+/*
+ * Parse the AML and build an operation tree as most interpreters, (such as
+ * Perl) do. Parsing is done by hand rather than with a YACC generated parser
+ * to tightly constrain stack and dynamic memory usage. Parsing is kept
+ * flexible and the code fairly compact by parsing based on a list of AML
+ * opcode templates in aml_op_info[].
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psloop")
+
+static u32 acpi_gbl_depth = 0;
+
+/* Local prototypes */
+
+static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state);
+
+static acpi_status
+acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
+ u8 * aml_op_start,
+ union acpi_parse_object *unnamed_op,
+ union acpi_parse_object **op);
+
+static acpi_status
+acpi_ps_create_op(struct acpi_walk_state *walk_state,
+ u8 * aml_op_start, union acpi_parse_object **new_op);
+
+static acpi_status
+acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
+ u8 * aml_op_start, union acpi_parse_object *op);
+
+static acpi_status
+acpi_ps_complete_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object **op, acpi_status status);
+
+static acpi_status
+acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op, acpi_status status);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_aml_opcode
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Extract the next AML opcode from the input stream.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
+{
+
+ ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
+
+ walk_state->aml_offset =
+ (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
+ walk_state->parser_state.aml_start);
+ walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state));
+
+ /*
+ * First cut to determine what we have found:
+ * 1) A valid AML opcode
+ * 2) A name string
+ * 3) An unknown/invalid opcode
+ */
+ walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
+
+ switch (walk_state->op_info->class) {
+ case AML_CLASS_ASCII:
+ case AML_CLASS_PREFIX:
+ /*
+ * Starts with a valid prefix or ASCII char, this is a name
+ * string. Convert the bare name string to a namepath.
+ */
+ walk_state->opcode = AML_INT_NAMEPATH_OP;
+ walk_state->arg_types = ARGP_NAMESTRING;
+ break;
+
+ case AML_CLASS_UNKNOWN:
+
+ /* The opcode is unrecognized. Just skip unknown opcodes */
+
+ ACPI_ERROR((AE_INFO,
+ "Found unknown opcode %X at AML address %p offset %X, ignoring",
+ walk_state->opcode, walk_state->parser_state.aml,
+ walk_state->aml_offset));
+
+ ACPI_DUMP_BUFFER(walk_state->parser_state.aml, 128);
+
+ /* Assume one-byte bad opcode */
+
+ walk_state->parser_state.aml++;
+ return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+
+ default:
+
+ /* Found opcode info, this is a normal opcode */
+
+ walk_state->parser_state.aml +=
+ acpi_ps_get_opcode_size(walk_state->opcode);
+ walk_state->arg_types = walk_state->op_info->parse_args;
+ break;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_build_named_op
+ *
+ * PARAMETERS: walk_state - Current state
+ * aml_op_start - Begin of named Op in AML
+ * unnamed_op - Early Op (not a named Op)
+ * Op - Returned Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Parse a named Op
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
+ u8 * aml_op_start,
+ union acpi_parse_object *unnamed_op,
+ union acpi_parse_object **op)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *arg = NULL;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state);
+
+ unnamed_op->common.value.arg = NULL;
+ unnamed_op->common.arg_list_length = 0;
+ unnamed_op->common.aml_opcode = walk_state->opcode;
+
+ /*
+ * Get and append arguments until we find the node that contains
+ * the name (the type ARGP_NAME).
+ */
+ while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
+ (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
+ status =
+ acpi_ps_get_next_arg(walk_state,
+ &(walk_state->parser_state),
+ GET_CURRENT_ARG_TYPE(walk_state->
+ arg_types), &arg);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ acpi_ps_append_arg(unnamed_op, arg);
+ INCREMENT_ARG_LIST(walk_state->arg_types);
+ }
+
+ /*
+ * Make sure that we found a NAME and didn't run out of arguments
+ */
+ if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) {
+ return_ACPI_STATUS(AE_AML_NO_OPERAND);
+ }
+
+ /* We know that this arg is a name, move to next arg */
+
+ INCREMENT_ARG_LIST(walk_state->arg_types);
+
+ /*
+ * Find the object. This will either insert the object into
+ * the namespace or simply look it up
+ */
+ walk_state->op = NULL;
+
+ status = walk_state->descending_callback(walk_state, op);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog"));
+ return_ACPI_STATUS(status);
+ }
+
+ if (!*op) {
+ return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+ }
+
+ status = acpi_ps_next_parse_state(walk_state, *op, status);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_CTRL_PENDING) {
+ return_ACPI_STATUS(AE_CTRL_PARSE_PENDING);
+ }
+ return_ACPI_STATUS(status);
+ }
+
+ acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
+ acpi_gbl_depth++;
+
+ if ((*op)->common.aml_opcode == AML_REGION_OP ||
+ (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
+ /*
+ * Defer final parsing of an operation_region body, because we don't
+ * have enough info in the first pass to parse it correctly (i.e.,
+ * there may be method calls within the term_arg elements of the body.)
+ *
+ * However, we must continue parsing because the opregion is not a
+ * standalone package -- we don't know where the end is at this point.
+ *
+ * (Length is unknown until parse of the body complete)
+ */
+ (*op)->named.data = aml_op_start;
+ (*op)->named.length = 0;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_create_op
+ *
+ * PARAMETERS: walk_state - Current state
+ * aml_op_start - Op start in AML
+ * new_op - Returned Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get Op from AML
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ps_create_op(struct acpi_walk_state *walk_state,
+ u8 * aml_op_start, union acpi_parse_object **new_op)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *op;
+ union acpi_parse_object *named_op = NULL;
+ union acpi_parse_object *parent_scope;
+ u8 argument_count;
+ const struct acpi_opcode_info *op_info;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state);
+
+ status = acpi_ps_get_aml_opcode(walk_state);
+ if (status == AE_CTRL_PARSE_CONTINUE) {
+ return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
+ }
+
+ /* Create Op structure and append to parent's argument list */
+
+ walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
+ op = acpi_ps_alloc_op(walk_state->opcode);
+ if (!op) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ if (walk_state->op_info->flags & AML_NAMED) {
+ status =
+ acpi_ps_build_named_op(walk_state, aml_op_start, op,
+ &named_op);
+ acpi_ps_free_op(op);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ *new_op = named_op;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Not a named opcode, just allocate Op and append to parent */
+
+ if (walk_state->op_info->flags & AML_CREATE) {
+ /*
+ * Backup to beginning of create_xXXfield declaration
+ * body_length is unknown until we parse the body
+ */
+ op->named.data = aml_op_start;
+ op->named.length = 0;
+ }
+
+ if (walk_state->opcode == AML_BANK_FIELD_OP) {
+ /*
+ * Backup to beginning of bank_field declaration
+ * body_length is unknown until we parse the body
+ */
+ op->named.data = aml_op_start;
+ op->named.length = 0;
+ }
+
+ parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state));
+ acpi_ps_append_arg(parent_scope, op);
+
+ if (parent_scope) {
+ op_info =
+ acpi_ps_get_opcode_info(parent_scope->common.aml_opcode);
+ if (op_info->flags & AML_HAS_TARGET) {
+ argument_count =
+ acpi_ps_get_argument_count(op_info->type);
+ if (parent_scope->common.arg_list_length >
+ argument_count) {
+ op->common.flags |= ACPI_PARSEOP_TARGET;
+ }
+ } else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) {
+ op->common.flags |= ACPI_PARSEOP_TARGET;
+ }
+ }
+
+ if (walk_state->descending_callback != NULL) {
+ /*
+ * Find the object. This will either insert the object into
+ * the namespace or simply look it up
+ */
+ walk_state->op = *new_op = op;
+
+ status = walk_state->descending_callback(walk_state, &op);
+ status = acpi_ps_next_parse_state(walk_state, op, status);
+ if (status == AE_CTRL_PENDING) {
+ status = AE_CTRL_PARSE_PENDING;
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_arguments
+ *
+ * PARAMETERS: walk_state - Current state
+ * aml_op_start - Op start in AML
+ * Op - Current Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get arguments for passed Op.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
+ u8 * aml_op_start, union acpi_parse_object *op)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *arg = NULL;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_get_arguments, walk_state);
+
+ switch (op->common.aml_opcode) {
+ case AML_BYTE_OP: /* AML_BYTEDATA_ARG */
+ case AML_WORD_OP: /* AML_WORDDATA_ARG */
+ case AML_DWORD_OP: /* AML_DWORDATA_ARG */
+ case AML_QWORD_OP: /* AML_QWORDATA_ARG */
+ case AML_STRING_OP: /* AML_ASCIICHARLIST_ARG */
+
+ /* Fill in constant or string argument directly */
+
+ acpi_ps_get_next_simple_arg(&(walk_state->parser_state),
+ GET_CURRENT_ARG_TYPE(walk_state->
+ arg_types),
+ op);
+ break;
+
+ case AML_INT_NAMEPATH_OP: /* AML_NAMESTRING_ARG */
+
+ status =
+ acpi_ps_get_next_namepath(walk_state,
+ &(walk_state->parser_state), op,
+ 1);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ walk_state->arg_types = 0;
+ break;
+
+ default:
+ /*
+ * Op is not a constant or string, append each argument to the Op
+ */
+ while (GET_CURRENT_ARG_TYPE(walk_state->arg_types)
+ && !walk_state->arg_count) {
+ walk_state->aml_offset =
+ (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
+ walk_state->parser_state.
+ aml_start);
+
+ status =
+ acpi_ps_get_next_arg(walk_state,
+ &(walk_state->parser_state),
+ GET_CURRENT_ARG_TYPE
+ (walk_state->arg_types), &arg);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (arg) {
+ arg->common.aml_offset = walk_state->aml_offset;
+ acpi_ps_append_arg(op, arg);
+ }
+
+ INCREMENT_ARG_LIST(walk_state->arg_types);
+ }
+
+ /* Special processing for certain opcodes */
+
+ /* TBD (remove): Temporary mechanism to disable this code if needed */
+
+#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
+
+ if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) &&
+ ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) {
+ /*
+ * We want to skip If/Else/While constructs during Pass1 because we
+ * want to actually conditionally execute the code during Pass2.
+ *
+ * Except for disassembly, where we always want to walk the
+ * If/Else/While packages
+ */
+ switch (op->common.aml_opcode) {
+ case AML_IF_OP:
+ case AML_ELSE_OP:
+ case AML_WHILE_OP:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Pass1: Skipping an If/Else/While body\n"));
+
+ /* Skip body of if/else/while in pass 1 */
+
+ walk_state->parser_state.aml =
+ walk_state->parser_state.pkg_end;
+ walk_state->arg_count = 0;
+ break;
+
+ default:
+ break;
+ }
+ }
+#endif
+
+ switch (op->common.aml_opcode) {
+ case AML_METHOD_OP:
+ /*
+ * Skip parsing of control method because we don't have enough
+ * info in the first pass to parse it correctly.
+ *
+ * Save the length and address of the body
+ */
+ op->named.data = walk_state->parser_state.aml;
+ op->named.length = (u32)
+ (walk_state->parser_state.pkg_end -
+ walk_state->parser_state.aml);
+
+ /* Skip body of method */
+
+ walk_state->parser_state.aml =
+ walk_state->parser_state.pkg_end;
+ walk_state->arg_count = 0;
+ break;
+
+ case AML_BUFFER_OP:
+ case AML_PACKAGE_OP:
+ case AML_VAR_PACKAGE_OP:
+
+ if ((op->common.parent) &&
+ (op->common.parent->common.aml_opcode ==
+ AML_NAME_OP)
+ && (walk_state->pass_number <=
+ ACPI_IMODE_LOAD_PASS2)) {
+ /*
+ * Skip parsing of Buffers and Packages because we don't have
+ * enough info in the first pass to parse them correctly.
+ */
+ op->named.data = aml_op_start;
+ op->named.length = (u32)
+ (walk_state->parser_state.pkg_end -
+ aml_op_start);
+
+ /* Skip body */
+
+ walk_state->parser_state.aml =
+ walk_state->parser_state.pkg_end;
+ walk_state->arg_count = 0;
+ }
+ break;
+
+ case AML_WHILE_OP:
+
+ if (walk_state->control_state) {
+ walk_state->control_state->control.package_end =
+ walk_state->parser_state.pkg_end;
+ }
+ break;
+
+ default:
+
+ /* No action for all other opcodes */
+ break;
+ }
+
+ break;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_complete_op
+ *
+ * PARAMETERS: walk_state - Current state
+ * Op - Returned Op
+ * Status - Parse status before complete Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Complete Op
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ps_complete_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object **op, acpi_status status)
+{
+ acpi_status status2;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state);
+
+ /*
+ * Finished one argument of the containing scope
+ */
+ walk_state->parser_state.scope->parse_scope.arg_count--;
+
+ /* Close this Op (will result in parse subtree deletion) */
+
+ status2 = acpi_ps_complete_this_op(walk_state, *op);
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
+
+ *op = NULL;
+
+ switch (status) {
+ case AE_OK:
+ break;
+
+ case AE_CTRL_TRANSFER:
+
+ /* We are about to transfer to a called method */
+
+ walk_state->prev_op = NULL;
+ walk_state->prev_arg_types = walk_state->arg_types;
+ return_ACPI_STATUS(status);
+
+ case AE_CTRL_END:
+
+ acpi_ps_pop_scope(&(walk_state->parser_state), op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+
+ if (*op) {
+ walk_state->op = *op;
+ walk_state->op_info =
+ acpi_ps_get_opcode_info((*op)->common.aml_opcode);
+ walk_state->opcode = (*op)->common.aml_opcode;
+
+ status = walk_state->ascending_callback(walk_state);
+ status =
+ acpi_ps_next_parse_state(walk_state, *op, status);
+
+ status2 = acpi_ps_complete_this_op(walk_state, *op);
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
+ }
+
+ status = AE_OK;
+ break;
+
+ case AE_CTRL_BREAK:
+ case AE_CTRL_CONTINUE:
+
+ /* Pop off scopes until we find the While */
+
+ while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) {
+ acpi_ps_pop_scope(&(walk_state->parser_state), op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+ }
+
+ /* Close this iteration of the While loop */
+
+ walk_state->op = *op;
+ walk_state->op_info =
+ acpi_ps_get_opcode_info((*op)->common.aml_opcode);
+ walk_state->opcode = (*op)->common.aml_opcode;
+
+ status = walk_state->ascending_callback(walk_state);
+ status = acpi_ps_next_parse_state(walk_state, *op, status);
+
+ status2 = acpi_ps_complete_this_op(walk_state, *op);
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
+
+ status = AE_OK;
+ break;
+
+ case AE_CTRL_TERMINATE:
+
+ /* Clean up */
+ do {
+ if (*op) {
+ status2 =
+ acpi_ps_complete_this_op(walk_state, *op);
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
+
+ acpi_ut_delete_generic_state
+ (acpi_ut_pop_generic_state
+ (&walk_state->control_state));
+ }
+
+ acpi_ps_pop_scope(&(walk_state->parser_state), op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+
+ } while (*op);
+
+ return_ACPI_STATUS(AE_OK);
+
+ default: /* All other non-AE_OK status */
+
+ do {
+ if (*op) {
+ status2 =
+ acpi_ps_complete_this_op(walk_state, *op);
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
+ }
+
+ acpi_ps_pop_scope(&(walk_state->parser_state), op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+
+ } while (*op);
+
+#if 0
+ /*
+ * TBD: Cleanup parse ops on error
+ */
+ if (*op == NULL) {
+ acpi_ps_pop_scope(parser_state, op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+ }
+#endif
+ walk_state->prev_op = NULL;
+ walk_state->prev_arg_types = walk_state->arg_types;
+ return_ACPI_STATUS(status);
+ }
+
+ /* This scope complete? */
+
+ if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) {
+ acpi_ps_pop_scope(&(walk_state->parser_state), op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op));
+ } else {
+ *op = NULL;
+ }
+
+ ACPI_PREEMPTION_POINT();
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_complete_final_op
+ *
+ * PARAMETERS: walk_state - Current state
+ * Op - Current Op
+ * Status - Current parse status before complete last
+ * Op
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Complete last Op.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op, acpi_status status)
+{
+ acpi_status status2;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state);
+
+ /*
+ * Complete the last Op (if not completed), and clear the scope stack.
+ * It is easily possible to end an AML "package" with an unbounded number
+ * of open scopes (such as when several ASL blocks are closed with
+ * sequential closing braces). We want to terminate each one cleanly.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n",
+ op));
+ do {
+ if (op) {
+ if (walk_state->ascending_callback != NULL) {
+ walk_state->op = op;
+ walk_state->op_info =
+ acpi_ps_get_opcode_info(op->common.
+ aml_opcode);
+ walk_state->opcode = op->common.aml_opcode;
+
+ status =
+ walk_state->ascending_callback(walk_state);
+ status =
+ acpi_ps_next_parse_state(walk_state, op,
+ status);
+ if (status == AE_CTRL_PENDING) {
+ status =
+ acpi_ps_complete_op(walk_state, &op,
+ AE_OK);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ if (status == AE_CTRL_TERMINATE) {
+ status = AE_OK;
+
+ /* Clean up */
+ do {
+ if (op) {
+ status2 =
+ acpi_ps_complete_this_op
+ (walk_state, op);
+ if (ACPI_FAILURE
+ (status2)) {
+ return_ACPI_STATUS
+ (status2);
+ }
+ }
+
+ acpi_ps_pop_scope(&
+ (walk_state->
+ parser_state),
+ &op,
+ &walk_state->
+ arg_types,
+ &walk_state->
+ arg_count);
+
+ } while (op);
+
+ return_ACPI_STATUS(status);
+ }
+
+ else if (ACPI_FAILURE(status)) {
+
+ /* First error is most important */
+
+ (void)
+ acpi_ps_complete_this_op(walk_state,
+ op);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ status2 = acpi_ps_complete_this_op(walk_state, op);
+ if (ACPI_FAILURE(status2)) {
+ return_ACPI_STATUS(status2);
+ }
+ }
+
+ acpi_ps_pop_scope(&(walk_state->parser_state), &op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+
+ } while (op);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_parse_loop
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Parse AML (pointed to by the current parser state) and return
+ * a tree of ops.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+ union acpi_parse_object *op = NULL; /* current op */
+ struct acpi_parse_state *parser_state;
+ u8 *aml_op_start = NULL;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state);
+
+ if (walk_state->descending_callback == NULL) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ parser_state = &walk_state->parser_state;
+ walk_state->arg_types = 0;
+
+#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
+
+ if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) {
+
+ /* We are restarting a preempted control method */
+
+ if (acpi_ps_has_completed_scope(parser_state)) {
+ /*
+ * We must check if a predicate to an IF or WHILE statement
+ * was just completed
+ */
+ if ((parser_state->scope->parse_scope.op) &&
+ ((parser_state->scope->parse_scope.op->common.
+ aml_opcode == AML_IF_OP)
+ || (parser_state->scope->parse_scope.op->common.
+ aml_opcode == AML_WHILE_OP))
+ && (walk_state->control_state)
+ && (walk_state->control_state->common.state ==
+ ACPI_CONTROL_PREDICATE_EXECUTING)) {
+ /*
+ * A predicate was just completed, get the value of the
+ * predicate and branch based on that value
+ */
+ walk_state->op = NULL;
+ status =
+ acpi_ds_get_predicate_value(walk_state,
+ ACPI_TO_POINTER
+ (TRUE));
+ if (ACPI_FAILURE(status)
+ && ((status & AE_CODE_MASK) !=
+ AE_CODE_CONTROL)) {
+ if (status == AE_AML_NO_RETURN_VALUE) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Invoked method did not return a value"));
+
+ }
+
+ ACPI_EXCEPTION((AE_INFO, status,
+ "GetPredicate Failed"));
+ return_ACPI_STATUS(status);
+ }
+
+ status =
+ acpi_ps_next_parse_state(walk_state, op,
+ status);
+ }
+
+ acpi_ps_pop_scope(parser_state, &op,
+ &walk_state->arg_types,
+ &walk_state->arg_count);
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Popped scope, Op=%p\n", op));
+ } else if (walk_state->prev_op) {
+
+ /* We were in the middle of an op */
+
+ op = walk_state->prev_op;
+ walk_state->arg_types = walk_state->prev_arg_types;
+ }
+ }
+#endif
+
+ /* Iterative parsing loop, while there is more AML to process: */
+
+ while ((parser_state->aml < parser_state->aml_end) || (op)) {
+ aml_op_start = parser_state->aml;
+ if (!op) {
+ status =
+ acpi_ps_create_op(walk_state, aml_op_start, &op);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_CTRL_PARSE_CONTINUE) {
+ continue;
+ }
+
+ if (status == AE_CTRL_PARSE_PENDING) {
+ status = AE_OK;
+ }
+
+ status =
+ acpi_ps_complete_op(walk_state, &op,
+ status);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ continue;
+ }
+
+ op->common.aml_offset = walk_state->aml_offset;
+
+ if (walk_state->op_info) {
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n",
+ (u32) op->common.aml_opcode,
+ walk_state->op_info->name, op,
+ parser_state->aml,
+ op->common.aml_offset));
+ }
+ }
+
+ /*
+ * Start arg_count at zero because we don't know if there are
+ * any args yet
+ */
+ walk_state->arg_count = 0;
+
+ /* Are there any arguments that must be processed? */
+
+ if (walk_state->arg_types) {
+
+ /* Get arguments */
+
+ status =
+ acpi_ps_get_arguments(walk_state, aml_op_start, op);
+ if (ACPI_FAILURE(status)) {
+ status =
+ acpi_ps_complete_op(walk_state, &op,
+ status);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ continue;
+ }
+ }
+
+ /* Check for arguments that need to be processed */
+
+ if (walk_state->arg_count) {
+ /*
+ * There are arguments (complex ones), push Op and
+ * prepare for argument
+ */
+ status = acpi_ps_push_scope(parser_state, op,
+ walk_state->arg_types,
+ walk_state->arg_count);
+ if (ACPI_FAILURE(status)) {
+ status =
+ acpi_ps_complete_op(walk_state, &op,
+ status);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ continue;
+ }
+
+ op = NULL;
+ continue;
+ }
+
+ /*
+ * All arguments have been processed -- Op is complete,
+ * prepare for next
+ */
+ walk_state->op_info =
+ acpi_ps_get_opcode_info(op->common.aml_opcode);
+ if (walk_state->op_info->flags & AML_NAMED) {
+ if (acpi_gbl_depth) {
+ acpi_gbl_depth--;
+ }
+
+ if (op->common.aml_opcode == AML_REGION_OP ||
+ op->common.aml_opcode == AML_DATA_REGION_OP) {
+ /*
+ * Skip parsing of control method or opregion body,
+ * because we don't have enough info in the first pass
+ * to parse them correctly.
+ *
+ * Completed parsing an op_region declaration, we now
+ * know the length.
+ */
+ op->named.length =
+ (u32) (parser_state->aml - op->named.data);
+ }
+ }
+
+ if (walk_state->op_info->flags & AML_CREATE) {
+ /*
+ * Backup to beginning of create_xXXfield declaration (1 for
+ * Opcode)
+ *
+ * body_length is unknown until we parse the body
+ */
+ op->named.length =
+ (u32) (parser_state->aml - op->named.data);
+ }
+
+ if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
+ /*
+ * Backup to beginning of bank_field declaration
+ *
+ * body_length is unknown until we parse the body
+ */
+ op->named.length =
+ (u32) (parser_state->aml - op->named.data);
+ }
+
+ /* This op complete, notify the dispatcher */
+
+ if (walk_state->ascending_callback != NULL) {
+ walk_state->op = op;
+ walk_state->opcode = op->common.aml_opcode;
+
+ status = walk_state->ascending_callback(walk_state);
+ status =
+ acpi_ps_next_parse_state(walk_state, op, status);
+ if (status == AE_CTRL_PENDING) {
+ status = AE_OK;
+ }
+ }
+
+ status = acpi_ps_complete_op(walk_state, &op, status);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ } /* while parser_state->Aml */
+
+ status = acpi_ps_complete_final_op(walk_state, op, status);
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psopcode - Parser/Interpreter opcode information table
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acopcode.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psopcode")
+
+static const u8 acpi_gbl_argument_count[] =
+ { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 };
+
+/*******************************************************************************
+ *
+ * NAME: acpi_gbl_aml_op_info
+ *
+ * DESCRIPTION: Opcode table. Each entry contains <opcode, type, name, operands>
+ * The name is a simple ascii string, the operand specifier is an
+ * ascii string with one letter per operand. The letter specifies
+ * the operand type.
+ *
+ ******************************************************************************/
+
+/*
+ * Summary of opcode types/flags
+ *
+
+ Opcodes that have associated namespace objects (AML_NSOBJECT flag)
+
+ AML_SCOPE_OP
+ AML_DEVICE_OP
+ AML_THERMAL_ZONE_OP
+ AML_METHOD_OP
+ AML_POWER_RES_OP
+ AML_PROCESSOR_OP
+ AML_FIELD_OP
+ AML_INDEX_FIELD_OP
+ AML_BANK_FIELD_OP
+ AML_NAME_OP
+ AML_ALIAS_OP
+ AML_MUTEX_OP
+ AML_EVENT_OP
+ AML_REGION_OP
+ AML_CREATE_FIELD_OP
+ AML_CREATE_BIT_FIELD_OP
+ AML_CREATE_BYTE_FIELD_OP
+ AML_CREATE_WORD_FIELD_OP
+ AML_CREATE_DWORD_FIELD_OP
+ AML_CREATE_QWORD_FIELD_OP
+ AML_INT_NAMEDFIELD_OP
+ AML_INT_METHODCALL_OP
+ AML_INT_NAMEPATH_OP
+
+ Opcodes that are "namespace" opcodes (AML_NSOPCODE flag)
+
+ AML_SCOPE_OP
+ AML_DEVICE_OP
+ AML_THERMAL_ZONE_OP
+ AML_METHOD_OP
+ AML_POWER_RES_OP
+ AML_PROCESSOR_OP
+ AML_FIELD_OP
+ AML_INDEX_FIELD_OP
+ AML_BANK_FIELD_OP
+ AML_NAME_OP
+ AML_ALIAS_OP
+ AML_MUTEX_OP
+ AML_EVENT_OP
+ AML_REGION_OP
+ AML_INT_NAMEDFIELD_OP
+
+ Opcodes that have an associated namespace node (AML_NSNODE flag)
+
+ AML_SCOPE_OP
+ AML_DEVICE_OP
+ AML_THERMAL_ZONE_OP
+ AML_METHOD_OP
+ AML_POWER_RES_OP
+ AML_PROCESSOR_OP
+ AML_NAME_OP
+ AML_ALIAS_OP
+ AML_MUTEX_OP
+ AML_EVENT_OP
+ AML_REGION_OP
+ AML_CREATE_FIELD_OP
+ AML_CREATE_BIT_FIELD_OP
+ AML_CREATE_BYTE_FIELD_OP
+ AML_CREATE_WORD_FIELD_OP
+ AML_CREATE_DWORD_FIELD_OP
+ AML_CREATE_QWORD_FIELD_OP
+ AML_INT_NAMEDFIELD_OP
+ AML_INT_METHODCALL_OP
+ AML_INT_NAMEPATH_OP
+
+ Opcodes that define named ACPI objects (AML_NAMED flag)
+
+ AML_SCOPE_OP
+ AML_DEVICE_OP
+ AML_THERMAL_ZONE_OP
+ AML_METHOD_OP
+ AML_POWER_RES_OP
+ AML_PROCESSOR_OP
+ AML_NAME_OP
+ AML_ALIAS_OP
+ AML_MUTEX_OP
+ AML_EVENT_OP
+ AML_REGION_OP
+ AML_INT_NAMEDFIELD_OP
+
+ Opcodes that contain executable AML as part of the definition that
+ must be deferred until needed
+
+ AML_METHOD_OP
+ AML_VAR_PACKAGE_OP
+ AML_CREATE_FIELD_OP
+ AML_CREATE_BIT_FIELD_OP
+ AML_CREATE_BYTE_FIELD_OP
+ AML_CREATE_WORD_FIELD_OP
+ AML_CREATE_DWORD_FIELD_OP
+ AML_CREATE_QWORD_FIELD_OP
+ AML_REGION_OP
+ AML_BUFFER_OP
+
+ Field opcodes
+
+ AML_CREATE_FIELD_OP
+ AML_FIELD_OP
+ AML_INDEX_FIELD_OP
+ AML_BANK_FIELD_OP
+
+ Field "Create" opcodes
+
+ AML_CREATE_FIELD_OP
+ AML_CREATE_BIT_FIELD_OP
+ AML_CREATE_BYTE_FIELD_OP
+ AML_CREATE_WORD_FIELD_OP
+ AML_CREATE_DWORD_FIELD_OP
+ AML_CREATE_QWORD_FIELD_OP
+
+ ******************************************************************************/
+
+/*
+ * Master Opcode information table. A summary of everything we know about each
+ * opcode, all in one place.
+ */
+const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
+/*! [Begin] no source code translation */
+/* Index Name Parser Args Interpreter Args ObjectType Class Type Flags */
+
+/* 00 */ ACPI_OP("Zero", ARGP_ZERO_OP, ARGI_ZERO_OP, ACPI_TYPE_INTEGER,
+ AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+/* 01 */ ACPI_OP("One", ARGP_ONE_OP, ARGI_ONE_OP, ACPI_TYPE_INTEGER,
+ AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+/* 02 */ ACPI_OP("Alias", ARGP_ALIAS_OP, ARGI_ALIAS_OP,
+ ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_SIMPLE,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 03 */ ACPI_OP("Name", ARGP_NAME_OP, ARGI_NAME_OP, ACPI_TYPE_ANY,
+ AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 04 */ ACPI_OP("ByteConst", ARGP_BYTE_OP, ARGI_BYTE_OP,
+ ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, AML_CONSTANT),
+/* 05 */ ACPI_OP("WordConst", ARGP_WORD_OP, ARGI_WORD_OP,
+ ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, AML_CONSTANT),
+/* 06 */ ACPI_OP("DwordConst", ARGP_DWORD_OP, ARGI_DWORD_OP,
+ ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, AML_CONSTANT),
+/* 07 */ ACPI_OP("String", ARGP_STRING_OP, ARGI_STRING_OP,
+ ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, AML_CONSTANT),
+/* 08 */ ACPI_OP("Scope", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
+ ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_NO_OBJ,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 09 */ ACPI_OP("Buffer", ARGP_BUFFER_OP, ARGI_BUFFER_OP,
+ ACPI_TYPE_BUFFER, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_OBJECT,
+ AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+/* 0A */ ACPI_OP("Package", ARGP_PACKAGE_OP, ARGI_PACKAGE_OP,
+ ACPI_TYPE_PACKAGE, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_OBJECT,
+ AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+/* 0B */ ACPI_OP("Method", ARGP_METHOD_OP, ARGI_METHOD_OP,
+ ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_COMPLEX,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED | AML_DEFER),
+/* 0C */ ACPI_OP("Local0", ARGP_LOCAL0, ARGI_LOCAL0,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 0D */ ACPI_OP("Local1", ARGP_LOCAL1, ARGI_LOCAL1,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 0E */ ACPI_OP("Local2", ARGP_LOCAL2, ARGI_LOCAL2,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 0F */ ACPI_OP("Local3", ARGP_LOCAL3, ARGI_LOCAL3,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 10 */ ACPI_OP("Local4", ARGP_LOCAL4, ARGI_LOCAL4,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 11 */ ACPI_OP("Local5", ARGP_LOCAL5, ARGI_LOCAL5,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 12 */ ACPI_OP("Local6", ARGP_LOCAL6, ARGI_LOCAL6,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 13 */ ACPI_OP("Local7", ARGP_LOCAL7, ARGI_LOCAL7,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LOCAL_VARIABLE, 0),
+/* 14 */ ACPI_OP("Arg0", ARGP_ARG0, ARGI_ARG0,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 15 */ ACPI_OP("Arg1", ARGP_ARG1, ARGI_ARG1,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 16 */ ACPI_OP("Arg2", ARGP_ARG2, ARGI_ARG2,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 17 */ ACPI_OP("Arg3", ARGP_ARG3, ARGI_ARG3,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 18 */ ACPI_OP("Arg4", ARGP_ARG4, ARGI_ARG4,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 19 */ ACPI_OP("Arg5", ARGP_ARG5, ARGI_ARG5,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 1A */ ACPI_OP("Arg6", ARGP_ARG6, ARGI_ARG6,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_METHOD_ARGUMENT, 0),
+/* 1B */ ACPI_OP("Store", ARGP_STORE_OP, ARGI_STORE_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R),
+/* 1C */ ACPI_OP("RefOf", ARGP_REF_OF_OP, ARGI_REF_OF_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
+ AML_FLAGS_EXEC_1A_0T_1R),
+/* 1D */ ACPI_OP("Add", ARGP_ADD_OP, ARGI_ADD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 1E */ ACPI_OP("Concatenate", ARGP_CONCAT_OP, ARGI_CONCAT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 1F */ ACPI_OP("Subtract", ARGP_SUBTRACT_OP, ARGI_SUBTRACT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 20 */ ACPI_OP("Increment", ARGP_INCREMENT_OP, ARGI_INCREMENT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_1R,
+ AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+/* 21 */ ACPI_OP("Decrement", ARGP_DECREMENT_OP, ARGI_DECREMENT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_1R,
+ AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+/* 22 */ ACPI_OP("Multiply", ARGP_MULTIPLY_OP, ARGI_MULTIPLY_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 23 */ ACPI_OP("Divide", ARGP_DIVIDE_OP, ARGI_DIVIDE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_2T_1R,
+ AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
+/* 24 */ ACPI_OP("ShiftLeft", ARGP_SHIFT_LEFT_OP, ARGI_SHIFT_LEFT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 25 */ ACPI_OP("ShiftRight", ARGP_SHIFT_RIGHT_OP, ARGI_SHIFT_RIGHT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 26 */ ACPI_OP("And", ARGP_BIT_AND_OP, ARGI_BIT_AND_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 27 */ ACPI_OP("NAnd", ARGP_BIT_NAND_OP, ARGI_BIT_NAND_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 28 */ ACPI_OP("Or", ARGP_BIT_OR_OP, ARGI_BIT_OR_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 29 */ ACPI_OP("NOr", ARGP_BIT_NOR_OP, ARGI_BIT_NOR_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 2A */ ACPI_OP("XOr", ARGP_BIT_XOR_OP, ARGI_BIT_XOR_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 2B */ ACPI_OP("Not", ARGP_BIT_NOT_OP, ARGI_BIT_NOT_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 2C */ ACPI_OP("FindSetLeftBit", ARGP_FIND_SET_LEFT_BIT_OP,
+ ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 2D */ ACPI_OP("FindSetRightBit", ARGP_FIND_SET_RIGHT_BIT_OP,
+ ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 2E */ ACPI_OP("DerefOf", ARGP_DEREF_OF_OP, ARGI_DEREF_OF_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R),
+/* 2F */ ACPI_OP("Notify", ARGP_NOTIFY_OP, ARGI_NOTIFY_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R),
+/* 30 */ ACPI_OP("SizeOf", ARGP_SIZE_OF_OP, ARGI_SIZE_OF_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_1R,
+ AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+/* 31 */ ACPI_OP("Index", ARGP_INDEX_OP, ARGI_INDEX_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R),
+/* 32 */ ACPI_OP("Match", ARGP_MATCH_OP, ARGI_MATCH_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R,
+ AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
+/* 33 */ ACPI_OP("CreateDWordField", ARGP_CREATE_DWORD_FIELD_OP,
+ ARGI_CREATE_DWORD_FIELD_OP,
+ ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+ AML_DEFER | AML_CREATE),
+/* 34 */ ACPI_OP("CreateWordField", ARGP_CREATE_WORD_FIELD_OP,
+ ARGI_CREATE_WORD_FIELD_OP,
+ ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+ AML_DEFER | AML_CREATE),
+/* 35 */ ACPI_OP("CreateByteField", ARGP_CREATE_BYTE_FIELD_OP,
+ ARGI_CREATE_BYTE_FIELD_OP,
+ ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+ AML_DEFER | AML_CREATE),
+/* 36 */ ACPI_OP("CreateBitField", ARGP_CREATE_BIT_FIELD_OP,
+ ARGI_CREATE_BIT_FIELD_OP,
+ ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+ AML_DEFER | AML_CREATE),
+/* 37 */ ACPI_OP("ObjectType", ARGP_TYPE_OP, ARGI_TYPE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_1R,
+ AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+/* 38 */ ACPI_OP("LAnd", ARGP_LAND_OP, ARGI_LAND_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+ AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
+/* 39 */ ACPI_OP("LOr", ARGP_LOR_OP, ARGI_LOR_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+ AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
+/* 3A */ ACPI_OP("LNot", ARGP_LNOT_OP, ARGI_LNOT_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
+ AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+/* 3B */ ACPI_OP("LEqual", ARGP_LEQUAL_OP, ARGI_LEQUAL_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_0T_1R,
+ AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+/* 3C */ ACPI_OP("LGreater", ARGP_LGREATER_OP, ARGI_LGREATER_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_0T_1R,
+ AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+/* 3D */ ACPI_OP("LLess", ARGP_LLESS_OP, ARGI_LLESS_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+ AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+/* 3E */ ACPI_OP("If", ARGP_IF_OP, ARGI_IF_OP, ACPI_TYPE_ANY,
+ AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+/* 3F */ ACPI_OP("Else", ARGP_ELSE_OP, ARGI_ELSE_OP, ACPI_TYPE_ANY,
+ AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+/* 40 */ ACPI_OP("While", ARGP_WHILE_OP, ARGI_WHILE_OP, ACPI_TYPE_ANY,
+ AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+/* 41 */ ACPI_OP("Noop", ARGP_NOOP_OP, ARGI_NOOP_OP, ACPI_TYPE_ANY,
+ AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+/* 42 */ ACPI_OP("Return", ARGP_RETURN_OP, ARGI_RETURN_OP,
+ ACPI_TYPE_ANY, AML_CLASS_CONTROL,
+ AML_TYPE_CONTROL, AML_HAS_ARGS),
+/* 43 */ ACPI_OP("Break", ARGP_BREAK_OP, ARGI_BREAK_OP, ACPI_TYPE_ANY,
+ AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+/* 44 */ ACPI_OP("BreakPoint", ARGP_BREAK_POINT_OP, ARGI_BREAK_POINT_OP,
+ ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+/* 45 */ ACPI_OP("Ones", ARGP_ONES_OP, ARGI_ONES_OP, ACPI_TYPE_INTEGER,
+ AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+
+/* Prefixed opcodes (Two-byte opcodes with a prefix op) */
+
+/* 46 */ ACPI_OP("Mutex", ARGP_MUTEX_OP, ARGI_MUTEX_OP, ACPI_TYPE_MUTEX,
+ AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 47 */ ACPI_OP("Event", ARGP_EVENT_OP, ARGI_EVENT_OP, ACPI_TYPE_EVENT,
+ AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+ AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 48 */ ACPI_OP("CondRefOf", ARGP_COND_REF_OF_OP, ARGI_COND_REF_OF_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
+/* 49 */ ACPI_OP("CreateField", ARGP_CREATE_FIELD_OP,
+ ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,
+ AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+ AML_DEFER | AML_FIELD | AML_CREATE),
+/* 4A */ ACPI_OP("Load", ARGP_LOAD_OP, ARGI_LOAD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R,
+ AML_FLAGS_EXEC_1A_1T_0R),
+/* 4B */ ACPI_OP("Stall", ARGP_STALL_OP, ARGI_STALL_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+ AML_FLAGS_EXEC_1A_0T_0R),
+/* 4C */ ACPI_OP("Sleep", ARGP_SLEEP_OP, ARGI_SLEEP_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+ AML_FLAGS_EXEC_1A_0T_0R),
+/* 4D */ ACPI_OP("Acquire", ARGP_ACQUIRE_OP, ARGI_ACQUIRE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R),
+/* 4E */ ACPI_OP("Signal", ARGP_SIGNAL_OP, ARGI_SIGNAL_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+/* 4F */ ACPI_OP("Wait", ARGP_WAIT_OP, ARGI_WAIT_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+ AML_FLAGS_EXEC_2A_0T_1R),
+/* 50 */ ACPI_OP("Reset", ARGP_RESET_OP, ARGI_RESET_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+ AML_FLAGS_EXEC_1A_0T_0R),
+/* 51 */ ACPI_OP("Release", ARGP_RELEASE_OP, ARGI_RELEASE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+/* 52 */ ACPI_OP("FromBCD", ARGP_FROM_BCD_OP, ARGI_FROM_BCD_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 53 */ ACPI_OP("ToBCD", ARGP_TO_BCD_OP, ARGI_TO_BCD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 54 */ ACPI_OP("Unload", ARGP_UNLOAD_OP, ARGI_UNLOAD_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+/* 55 */ ACPI_OP("Revision", ARGP_REVISION_OP, ARGI_REVISION_OP,
+ ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+ AML_TYPE_CONSTANT, 0),
+/* 56 */ ACPI_OP("Debug", ARGP_DEBUG_OP, ARGI_DEBUG_OP,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_CONSTANT, 0),
+/* 57 */ ACPI_OP("Fatal", ARGP_FATAL_OP, ARGI_FATAL_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R,
+ AML_FLAGS_EXEC_3A_0T_0R),
+/* 58 */ ACPI_OP("OperationRegion", ARGP_REGION_OP, ARGI_REGION_OP,
+ ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_COMPLEX,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED | AML_DEFER),
+/* 59 */ ACPI_OP("Field", ARGP_FIELD_OP, ARGI_FIELD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
+/* 5A */ ACPI_OP("Device", ARGP_DEVICE_OP, ARGI_DEVICE_OP,
+ ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_NO_OBJ,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 5B */ ACPI_OP("Processor", ARGP_PROCESSOR_OP, ARGI_PROCESSOR_OP,
+ ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_SIMPLE,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 5C */ ACPI_OP("PowerResource", ARGP_POWER_RES_OP, ARGI_POWER_RES_OP,
+ ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_SIMPLE,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 5D */ ACPI_OP("ThermalZone", ARGP_THERMAL_ZONE_OP,
+ ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL,
+ AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED),
+/* 5E */ ACPI_OP("IndexField", ARGP_INDEX_FIELD_OP, ARGI_INDEX_FIELD_OP,
+ ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
+/* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP,
+ ACPI_TYPE_LOCAL_BANK_FIELD, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD |
+ AML_DEFER),
+
+/* Internal opcodes that map to invalid AML opcodes */
+
+/* 60 */ ACPI_OP("LNotEqual", ARGP_LNOTEQUAL_OP, ARGI_LNOTEQUAL_OP,
+ ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+ AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
+/* 61 */ ACPI_OP("LLessEqual", ARGP_LLESSEQUAL_OP, ARGI_LLESSEQUAL_OP,
+ ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+ AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
+/* 62 */ ACPI_OP("LGreaterEqual", ARGP_LGREATEREQUAL_OP,
+ ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY,
+ AML_CLASS_INTERNAL, AML_TYPE_BOGUS,
+ AML_HAS_ARGS | AML_CONSTANT),
+/* 63 */ ACPI_OP("-NamePath-", ARGP_NAMEPATH_OP, ARGI_NAMEPATH_OP,
+ ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE),
+/* 64 */ ACPI_OP("-MethodCall-", ARGP_METHODCALL_OP, ARGI_METHODCALL_OP,
+ ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL,
+ AML_TYPE_METHOD_CALL,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
+/* 65 */ ACPI_OP("-ByteList-", ARGP_BYTELIST_OP, ARGI_BYTELIST_OP,
+ ACPI_TYPE_ANY, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, 0),
+/* 66 */ ACPI_OP("-ReservedField-", ARGP_RESERVEDFIELD_OP,
+ ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+/* 67 */ ACPI_OP("-NamedField-", ARGP_NAMEDFIELD_OP, ARGI_NAMEDFIELD_OP,
+ ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+ AML_TYPE_BOGUS,
+ AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 68 */ ACPI_OP("-AccessField-", ARGP_ACCESSFIELD_OP,
+ ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+/* 69 */ ACPI_OP("-StaticString", ARGP_STATICSTRING_OP,
+ ARGI_STATICSTRING_OP, ACPI_TYPE_ANY,
+ AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+/* 6A */ ACPI_OP("-Return Value-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
+ AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN,
+ AML_HAS_ARGS | AML_HAS_RETVAL),
+/* 6B */ ACPI_OP("-UNKNOWN_OP-", ARG_NONE, ARG_NONE, ACPI_TYPE_INVALID,
+ AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS),
+/* 6C */ ACPI_OP("-ASCII_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
+ AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS),
+/* 6D */ ACPI_OP("-PREFIX_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
+ AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS),
+
+/* ACPI 2.0 opcodes */
+
+/* 6E */ ACPI_OP("QwordConst", ARGP_QWORD_OP, ARGI_QWORD_OP,
+ ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+ AML_TYPE_LITERAL, AML_CONSTANT),
+ /* 6F */ ACPI_OP("Package", /* Var */ ARGP_VAR_PACKAGE_OP,
+ ARGI_VAR_PACKAGE_OP, ACPI_TYPE_PACKAGE,
+ AML_CLASS_CREATE, AML_TYPE_CREATE_OBJECT,
+ AML_HAS_ARGS | AML_DEFER),
+/* 70 */ ACPI_OP("ConcatenateResTemplate", ARGP_CONCAT_RES_OP,
+ ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 71 */ ACPI_OP("Mod", ARGP_MOD_OP, ARGI_MOD_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 72 */ ACPI_OP("CreateQWordField", ARGP_CREATE_QWORD_FIELD_OP,
+ ARGI_CREATE_QWORD_FIELD_OP,
+ ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+ AML_TYPE_CREATE_FIELD,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+ AML_DEFER | AML_CREATE),
+/* 73 */ ACPI_OP("ToBuffer", ARGP_TO_BUFFER_OP, ARGI_TO_BUFFER_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 74 */ ACPI_OP("ToDecimalString", ARGP_TO_DEC_STR_OP,
+ ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 75 */ ACPI_OP("ToHexString", ARGP_TO_HEX_STR_OP, ARGI_TO_HEX_STR_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 76 */ ACPI_OP("ToInteger", ARGP_TO_INTEGER_OP, ARGI_TO_INTEGER_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_1T_1R,
+ AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 77 */ ACPI_OP("ToString", ARGP_TO_STRING_OP, ARGI_TO_STRING_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_2A_1T_1R,
+ AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 78 */ ACPI_OP("CopyObject", ARGP_COPY_OP, ARGI_COPY_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
+/* 79 */ ACPI_OP("Mid", ARGP_MID_OP, ARGI_MID_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R,
+ AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
+/* 7A */ ACPI_OP("Continue", ARGP_CONTINUE_OP, ARGI_CONTINUE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+/* 7B */ ACPI_OP("LoadTable", ARGP_LOAD_TABLE_OP, ARGI_LOAD_TABLE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+ AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
+/* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP,
+ ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
+ AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+ AML_NSNODE | AML_NAMED | AML_DEFER),
+/* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
+ ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+ AML_TYPE_NAMED_NO_OBJ,
+ AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE),
+
+/* ACPI 3.0 opcodes */
+
+/* 7E */ ACPI_OP("Timer", ARGP_TIMER_OP, ARGI_TIMER_OP, ACPI_TYPE_ANY,
+ AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R,
+ AML_FLAGS_EXEC_0A_0T_1R)
+
+/*! [End] no source code translation !*/
+};
+
+/*
+ * This table is directly indexed by the opcodes, and returns an
+ * index into the table above
+ */
+static const u8 acpi_gbl_short_op_index[256] = {
+/* 0 1 2 3 4 5 6 7 */
+/* 8 9 A B C D E F */
+/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
+/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
+/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
+/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
+/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
+/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
+/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
+/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
+/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
+/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
+/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
+/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
+/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
+/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
+/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
+/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
+/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
+};
+
+/*
+ * This table is indexed by the second opcode of the extended opcode
+ * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info)
+ */
+static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = {
+/* 0 1 2 3 4 5 6 7 */
+/* 8 9 A B C D E F */
+/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
+/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
+/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
+/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
+/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+/* 0x88 */ 0x7C,
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_opcode_info
+ *
+ * PARAMETERS: Opcode - The AML opcode
+ *
+ * RETURN: A pointer to the info about the opcode.
+ *
+ * DESCRIPTION: Find AML opcode description based on the opcode.
+ * NOTE: This procedure must ALWAYS return a valid pointer!
+ *
+ ******************************************************************************/
+
+const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)
+{
+ ACPI_FUNCTION_NAME(ps_get_opcode_info);
+
+ /*
+ * Detect normal 8-bit opcode or extended 16-bit opcode
+ */
+ if (!(opcode & 0xFF00)) {
+
+ /* Simple (8-bit) opcode: 0-255, can't index beyond table */
+
+ return (&acpi_gbl_aml_op_info
+ [acpi_gbl_short_op_index[(u8) opcode]]);
+ }
+
+ if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
+ (((u8) opcode) <= MAX_EXTENDED_OPCODE)) {
+
+ /* Valid extended (16-bit) opcode */
+
+ return (&acpi_gbl_aml_op_info
+ [acpi_gbl_long_op_index[(u8) opcode]]);
+ }
+
+ /* Unknown AML opcode */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "Unknown AML opcode [%4.4X]\n", opcode));
+
+ return (&acpi_gbl_aml_op_info[_UNK]);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_opcode_name
+ *
+ * PARAMETERS: Opcode - The AML opcode
+ *
+ * RETURN: A pointer to the name of the opcode (ASCII String)
+ * Note: Never returns NULL.
+ *
+ * DESCRIPTION: Translate an opcode into a human-readable string
+ *
+ ******************************************************************************/
+
+char *acpi_ps_get_opcode_name(u16 opcode)
+{
+#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
+
+ const struct acpi_opcode_info *op;
+
+ op = acpi_ps_get_opcode_info(opcode);
+
+ /* Always guaranteed to return a valid pointer */
+
+ return (op->name);
+
+#else
+ return ("OpcodeName unavailable");
+
+#endif
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_argument_count
+ *
+ * PARAMETERS: op_type - Type associated with the AML opcode
+ *
+ * RETURN: Argument count
+ *
+ * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
+ *
+ ******************************************************************************/
+
+u8 acpi_ps_get_argument_count(u32 op_type)
+{
+
+ if (op_type <= AML_TYPE_EXEC_6A_0T_1R) {
+ return (acpi_gbl_argument_count[op_type]);
+ }
+
+ return (0);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psparse - Parser top level AML parse routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+/*
+ * Parse the AML and build an operation tree as most interpreters,
+ * like Perl, do. Parsing is done by hand rather than with a YACC
+ * generated parser to tightly constrain stack and dynamic memory
+ * usage. At the same time, parsing is kept flexible and the code
+ * fairly compact by parsing based on a list of AML opcode
+ * templates in aml_op_info[]
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psparse")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_opcode_size
+ *
+ * PARAMETERS: Opcode - An AML opcode
+ *
+ * RETURN: Size of the opcode, in bytes (1 or 2)
+ *
+ * DESCRIPTION: Get the size of the current opcode.
+ *
+ ******************************************************************************/
+u32 acpi_ps_get_opcode_size(u32 opcode)
+{
+
+ /* Extended (2-byte) opcode if > 255 */
+
+ if (opcode > 0x00FF) {
+ return (2);
+ }
+
+ /* Otherwise, just a single byte opcode */
+
+ return (1);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_peek_opcode
+ *
+ * PARAMETERS: parser_state - A parser state object
+ *
+ * RETURN: Next AML opcode
+ *
+ * DESCRIPTION: Get next AML opcode (without incrementing AML pointer)
+ *
+ ******************************************************************************/
+
+u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state)
+{
+ u8 *aml;
+ u16 opcode;
+
+ aml = parser_state->aml;
+ opcode = (u16) ACPI_GET8(aml);
+
+ if (opcode == AML_EXTENDED_OP_PREFIX) {
+
+ /* Extended opcode, get the second opcode byte */
+
+ aml++;
+ opcode = (u16) ((opcode << 8) | ACPI_GET8(aml));
+ }
+
+ return (opcode);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_complete_this_op
+ *
+ * PARAMETERS: walk_state - Current State
+ * Op - Op to complete
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform any cleanup at the completion of an Op.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
+ union acpi_parse_object * op)
+{
+ union acpi_parse_object *prev;
+ union acpi_parse_object *next;
+ const struct acpi_opcode_info *parent_info;
+ union acpi_parse_object *replacement_op = NULL;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op);
+
+ /* Check for null Op, can happen if AML code is corrupt */
+
+ if (!op) {
+ return_ACPI_STATUS(AE_OK); /* OK for now */
+ }
+
+ /* Delete this op and the subtree below it if asked to */
+
+ if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) !=
+ ACPI_PARSE_DELETE_TREE)
+ || (walk_state->op_info->class == AML_CLASS_ARGUMENT)) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Make sure that we only delete this subtree */
+
+ if (op->common.parent) {
+ prev = op->common.parent->common.value.arg;
+ if (!prev) {
+
+ /* Nothing more to do */
+
+ goto cleanup;
+ }
+
+ /*
+ * Check if we need to replace the operator and its subtree
+ * with a return value op (placeholder op)
+ */
+ parent_info =
+ acpi_ps_get_opcode_info(op->common.parent->common.
+ aml_opcode);
+
+ switch (parent_info->class) {
+ case AML_CLASS_CONTROL:
+ break;
+
+ case AML_CLASS_CREATE:
+
+ /*
+ * These opcodes contain term_arg operands. The current
+ * op must be replaced by a placeholder return op
+ */
+ replacement_op =
+ acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
+ if (!replacement_op) {
+ status = AE_NO_MEMORY;
+ }
+ break;
+
+ case AML_CLASS_NAMED_OBJECT:
+
+ /*
+ * These opcodes contain term_arg operands. The current
+ * op must be replaced by a placeholder return op
+ */
+ if ((op->common.parent->common.aml_opcode ==
+ AML_REGION_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_DATA_REGION_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_BUFFER_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_PACKAGE_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_BANK_FIELD_OP)
+ || (op->common.parent->common.aml_opcode ==
+ AML_VAR_PACKAGE_OP)) {
+ replacement_op =
+ acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
+ if (!replacement_op) {
+ status = AE_NO_MEMORY;
+ }
+ } else
+ if ((op->common.parent->common.aml_opcode ==
+ AML_NAME_OP)
+ && (walk_state->pass_number <=
+ ACPI_IMODE_LOAD_PASS2)) {
+ if ((op->common.aml_opcode == AML_BUFFER_OP)
+ || (op->common.aml_opcode == AML_PACKAGE_OP)
+ || (op->common.aml_opcode ==
+ AML_VAR_PACKAGE_OP)) {
+ replacement_op =
+ acpi_ps_alloc_op(op->common.
+ aml_opcode);
+ if (!replacement_op) {
+ status = AE_NO_MEMORY;
+ } else {
+ replacement_op->named.data =
+ op->named.data;
+ replacement_op->named.length =
+ op->named.length;
+ }
+ }
+ }
+ break;
+
+ default:
+
+ replacement_op =
+ acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
+ if (!replacement_op) {
+ status = AE_NO_MEMORY;
+ }
+ }
+
+ /* We must unlink this op from the parent tree */
+
+ if (prev == op) {
+
+ /* This op is the first in the list */
+
+ if (replacement_op) {
+ replacement_op->common.parent =
+ op->common.parent;
+ replacement_op->common.value.arg = NULL;
+ replacement_op->common.node = op->common.node;
+ op->common.parent->common.value.arg =
+ replacement_op;
+ replacement_op->common.next = op->common.next;
+ } else {
+ op->common.parent->common.value.arg =
+ op->common.next;
+ }
+ }
+
+ /* Search the parent list */
+
+ else
+ while (prev) {
+
+ /* Traverse all siblings in the parent's argument list */
+
+ next = prev->common.next;
+ if (next == op) {
+ if (replacement_op) {
+ replacement_op->common.parent =
+ op->common.parent;
+ replacement_op->common.value.
+ arg = NULL;
+ replacement_op->common.node =
+ op->common.node;
+ prev->common.next =
+ replacement_op;
+ replacement_op->common.next =
+ op->common.next;
+ next = NULL;
+ } else {
+ prev->common.next =
+ op->common.next;
+ next = NULL;
+ }
+ }
+ prev = next;
+ }
+ }
+
+ cleanup:
+
+ /* Now we can actually delete the subtree rooted at Op */
+
+ acpi_ps_delete_parse_tree(op);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_next_parse_state
+ *
+ * PARAMETERS: walk_state - Current state
+ * Op - Current parse op
+ * callback_status - Status from previous operation
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Update the parser state based upon the return exception from
+ * the parser callback.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
+ union acpi_parse_object *op,
+ acpi_status callback_status)
+{
+ struct acpi_parse_state *parser_state = &walk_state->parser_state;
+ acpi_status status = AE_CTRL_PENDING;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_next_parse_state, op);
+
+ switch (callback_status) {
+ case AE_CTRL_TERMINATE:
+ /*
+ * A control method was terminated via a RETURN statement.
+ * The walk of this method is complete.
+ */
+ parser_state->aml = parser_state->aml_end;
+ status = AE_CTRL_TERMINATE;
+ break;
+
+ case AE_CTRL_BREAK:
+
+ parser_state->aml = walk_state->aml_last_while;
+ walk_state->control_state->common.value = FALSE;
+ status = AE_CTRL_BREAK;
+ break;
+
+ case AE_CTRL_CONTINUE:
+
+ parser_state->aml = walk_state->aml_last_while;
+ status = AE_CTRL_CONTINUE;
+ break;
+
+ case AE_CTRL_PENDING:
+
+ parser_state->aml = walk_state->aml_last_while;
+ break;
+
+#if 0
+ case AE_CTRL_SKIP:
+
+ parser_state->aml = parser_state->scope->parse_scope.pkg_end;
+ status = AE_OK;
+ break;
+#endif
+
+ case AE_CTRL_TRUE:
+ /*
+ * Predicate of an IF was true, and we are at the matching ELSE.
+ * Just close out this package
+ */
+ parser_state->aml = acpi_ps_get_next_package_end(parser_state);
+ status = AE_CTRL_PENDING;
+ break;
+
+ case AE_CTRL_FALSE:
+ /*
+ * Either an IF/WHILE Predicate was false or we encountered a BREAK
+ * opcode. In both cases, we do not execute the rest of the
+ * package; We simply close out the parent (finishing the walk of
+ * this branch of the tree) and continue execution at the parent
+ * level.
+ */
+ parser_state->aml = parser_state->scope->parse_scope.pkg_end;
+
+ /* In the case of a BREAK, just force a predicate (if any) to FALSE */
+
+ walk_state->control_state->common.value = FALSE;
+ status = AE_CTRL_END;
+ break;
+
+ case AE_CTRL_TRANSFER:
+
+ /* A method call (invocation) -- transfer control */
+
+ status = AE_CTRL_TRANSFER;
+ walk_state->prev_op = op;
+ walk_state->method_call_op = op;
+ walk_state->method_call_node =
+ (op->common.value.arg)->common.node;
+
+ /* Will return value (if any) be used by the caller? */
+
+ walk_state->return_used =
+ acpi_ds_is_result_used(op, walk_state);
+ break;
+
+ default:
+
+ status = callback_status;
+ if ((callback_status & AE_CODE_MASK) == AE_CODE_CONTROL) {
+ status = AE_OK;
+ }
+ break;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_parse_aml
+ *
+ * PARAMETERS: walk_state - Current state
+ *
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Parse raw AML and return a tree of ops
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ struct acpi_thread_state *thread;
+ struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list;
+ struct acpi_walk_state *previous_walk_state;
+
+ ACPI_FUNCTION_TRACE(ps_parse_aml);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Entered with WalkState=%p Aml=%p size=%X\n",
+ walk_state, walk_state->parser_state.aml,
+ walk_state->parser_state.aml_size));
+
+ if (!walk_state->parser_state.aml) {
+ return_ACPI_STATUS(AE_NULL_OBJECT);
+ }
+
+ /* Create and initialize a new thread state */
+
+ thread = acpi_ut_create_thread_state();
+ if (!thread) {
+ if (walk_state->method_desc) {
+
+ /* Executing a control method - additional cleanup */
+
+ acpi_ds_terminate_control_method(
+ walk_state->method_desc, walk_state);
+ }
+
+ acpi_ds_delete_walk_state(walk_state);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ walk_state->thread = thread;
+
+ /*
+ * If executing a method, the starting sync_level is this method's
+ * sync_level
+ */
+ if (walk_state->method_desc) {
+ walk_state->thread->current_sync_level =
+ walk_state->method_desc->method.sync_level;
+ }
+
+ acpi_ds_push_walk_state(walk_state, thread);
+
+ /*
+ * This global allows the AML debugger to get a handle to the currently
+ * executing control method.
+ */
+ acpi_gbl_current_walk_list = thread;
+
+ /*
+ * Execute the walk loop as long as there is a valid Walk State. This
+ * handles nested control method invocations without recursion.
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "State=%p\n", walk_state));
+
+ status = AE_OK;
+ while (walk_state) {
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * The parse_loop executes AML until the method terminates
+ * or calls another method.
+ */
+ status = acpi_ps_parse_loop(walk_state);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Completed one call to walk loop, %s State=%p\n",
+ acpi_format_exception(status), walk_state));
+
+ if (status == AE_CTRL_TRANSFER) {
+ /*
+ * A method call was detected.
+ * Transfer control to the called control method
+ */
+ status =
+ acpi_ds_call_control_method(thread, walk_state,
+ NULL);
+ if (ACPI_FAILURE(status)) {
+ status =
+ acpi_ds_method_error(status, walk_state);
+ }
+
+ /*
+ * If the transfer to the new method method call worked, a new walk
+ * state was created -- get it
+ */
+ walk_state = acpi_ds_get_current_walk_state(thread);
+ continue;
+ } else if (status == AE_CTRL_TERMINATE) {
+ status = AE_OK;
+ } else if ((status != AE_OK) && (walk_state->method_desc)) {
+
+ /* Either the method parse or actual execution failed */
+
+ ACPI_ERROR_METHOD("Method parse/execution failed",
+ walk_state->method_node, NULL,
+ status);
+
+ /* Check for possible multi-thread reentrancy problem */
+
+ if ((status == AE_ALREADY_EXISTS) &&
+ (!walk_state->method_desc->method.mutex)) {
+ ACPI_INFO((AE_INFO,
+ "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error",
+ walk_state->method_node->name.
+ ascii));
+
+ /*
+ * Method tried to create an object twice. The probable cause is
+ * that the method cannot handle reentrancy.
+ *
+ * The method is marked not_serialized, but it tried to create
+ * a named object, causing the second thread entrance to fail.
+ * Workaround this problem by marking the method permanently
+ * as Serialized.
+ */
+ walk_state->method_desc->method.method_flags |=
+ AML_METHOD_SERIALIZED;
+ walk_state->method_desc->method.sync_level = 0;
+ }
+ }
+
+ /* We are done with this walk, move on to the parent if any */
+
+ walk_state = acpi_ds_pop_walk_state(thread);
+
+ /* Reset the current scope to the beginning of scope stack */
+
+ acpi_ds_scope_stack_clear(walk_state);
+
+ /*
+ * If we just returned from the execution of a control method or if we
+ * encountered an error during the method parse phase, there's lots of
+ * cleanup to do
+ */
+ if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
+ ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) {
+ acpi_ds_terminate_control_method(walk_state->
+ method_desc,
+ walk_state);
+ }
+
+ /* Delete this walk state and all linked control states */
+
+ acpi_ps_cleanup_scope(&walk_state->parser_state);
+ previous_walk_state = walk_state;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "ReturnValue=%p, ImplicitValue=%p State=%p\n",
+ walk_state->return_desc,
+ walk_state->implicit_return_obj, walk_state));
+
+ /* Check if we have restarted a preempted walk */
+
+ walk_state = acpi_ds_get_current_walk_state(thread);
+ if (walk_state) {
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * There is another walk state, restart it.
+ * If the method return value is not used by the parent,
+ * The object is deleted
+ */
+ if (!previous_walk_state->return_desc) {
+ /*
+ * In slack mode execution, if there is no return value
+ * we should implicitly return zero (0) as a default value.
+ */
+ if (acpi_gbl_enable_interpreter_slack &&
+ !previous_walk_state->
+ implicit_return_obj) {
+ previous_walk_state->
+ implicit_return_obj =
+ acpi_ut_create_internal_object
+ (ACPI_TYPE_INTEGER);
+ if (!previous_walk_state->
+ implicit_return_obj) {
+ return_ACPI_STATUS
+ (AE_NO_MEMORY);
+ }
+
+ previous_walk_state->
+ implicit_return_obj->
+ integer.value = 0;
+ }
+
+ /* Restart the calling control method */
+
+ status =
+ acpi_ds_restart_control_method
+ (walk_state,
+ previous_walk_state->
+ implicit_return_obj);
+ } else {
+ /*
+ * We have a valid return value, delete any implicit
+ * return value.
+ */
+ acpi_ds_clear_implicit_return
+ (previous_walk_state);
+
+ status =
+ acpi_ds_restart_control_method
+ (walk_state,
+ previous_walk_state->return_desc);
+ }
+ if (ACPI_SUCCESS(status)) {
+ walk_state->walk_type |=
+ ACPI_WALK_METHOD_RESTART;
+ }
+ } else {
+ /* On error, delete any return object or implicit return */
+
+ acpi_ut_remove_reference(previous_walk_state->
+ return_desc);
+ acpi_ds_clear_implicit_return
+ (previous_walk_state);
+ }
+ }
+
+ /*
+ * Just completed a 1st-level method, save the final internal return
+ * value (if any)
+ */
+ else if (previous_walk_state->caller_return_desc) {
+ if (previous_walk_state->implicit_return_obj) {
+ *(previous_walk_state->caller_return_desc) =
+ previous_walk_state->implicit_return_obj;
+ } else {
+ /* NULL if no return value */
+
+ *(previous_walk_state->caller_return_desc) =
+ previous_walk_state->return_desc;
+ }
+ } else {
+ if (previous_walk_state->return_desc) {
+
+ /* Caller doesn't want it, must delete it */
+
+ acpi_ut_remove_reference(previous_walk_state->
+ return_desc);
+ }
+ if (previous_walk_state->implicit_return_obj) {
+
+ /* Caller doesn't want it, must delete it */
+
+ acpi_ut_remove_reference(previous_walk_state->
+ implicit_return_obj);
+ }
+ }
+
+ acpi_ds_delete_walk_state(previous_walk_state);
+ }
+
+ /* Normal exit */
+
+ acpi_ex_release_all_mutexes(thread);
+ acpi_ut_delete_generic_state(ACPI_CAST_PTR
+ (union acpi_generic_state, thread));
+ acpi_gbl_current_walk_list = prev_walk_list;
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psscope - Parser scope stack management routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psscope")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_parent_scope
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: Pointer to an Op object
+ *
+ * DESCRIPTION: Get parent of current op being parsed
+ *
+ ******************************************************************************/
+union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state
+ *parser_state)
+{
+
+ return (parser_state->scope->parse_scope.op);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_has_completed_scope
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: Boolean, TRUE = scope completed.
+ *
+ * DESCRIPTION: Is parsing of current argument complete? Determined by
+ * 1) AML pointer is at or beyond the end of the scope
+ * 2) The scope argument count has reached zero.
+ *
+ ******************************************************************************/
+
+u8 acpi_ps_has_completed_scope(struct acpi_parse_state * parser_state)
+{
+
+ return ((u8)
+ ((parser_state->aml >= parser_state->scope->parse_scope.arg_end
+ || !parser_state->scope->parse_scope.arg_count)));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_init_scope
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ * Root - the Root Node of this new scope
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocate and init a new scope object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_init_scope(struct acpi_parse_state * parser_state,
+ union acpi_parse_object * root_op)
+{
+ union acpi_generic_state *scope;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_init_scope, root_op);
+
+ scope = acpi_ut_create_generic_state();
+ if (!scope) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_RPSCOPE;
+ scope->parse_scope.op = root_op;
+ scope->parse_scope.arg_count = ACPI_VAR_ARGS;
+ scope->parse_scope.arg_end = parser_state->aml_end;
+ scope->parse_scope.pkg_end = parser_state->aml_end;
+
+ parser_state->scope = scope;
+ parser_state->start_op = root_op;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_push_scope
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ * Op - Current op to be pushed
+ * remaining_args - List of args remaining
+ * arg_count - Fixed or variable number of args
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Push current op to begin parsing its argument
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ps_push_scope(struct acpi_parse_state *parser_state,
+ union acpi_parse_object *op,
+ u32 remaining_args, u32 arg_count)
+{
+ union acpi_generic_state *scope;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_push_scope, op);
+
+ scope = acpi_ut_create_generic_state();
+ if (!scope) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_PSCOPE;
+ scope->parse_scope.op = op;
+ scope->parse_scope.arg_list = remaining_args;
+ scope->parse_scope.arg_count = arg_count;
+ scope->parse_scope.pkg_end = parser_state->pkg_end;
+
+ /* Push onto scope stack */
+
+ acpi_ut_push_generic_state(&parser_state->scope, scope);
+
+ if (arg_count == ACPI_VAR_ARGS) {
+
+ /* Multiple arguments */
+
+ scope->parse_scope.arg_end = parser_state->pkg_end;
+ } else {
+ /* Single argument */
+
+ scope->parse_scope.arg_end = ACPI_TO_POINTER(ACPI_MAX_PTR);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_pop_scope
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ * Op - Where the popped op is returned
+ * arg_list - Where the popped "next argument" is
+ * returned
+ * arg_count - Count of objects in arg_list
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return to parsing a previous op
+ *
+ ******************************************************************************/
+
+void
+acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
+ union acpi_parse_object **op, u32 * arg_list, u32 * arg_count)
+{
+ union acpi_generic_state *scope = parser_state->scope;
+
+ ACPI_FUNCTION_TRACE(ps_pop_scope);
+
+ /* Only pop the scope if there is in fact a next scope */
+
+ if (scope->common.next) {
+ scope = acpi_ut_pop_generic_state(&parser_state->scope);
+
+ /* Return to parsing previous op */
+
+ *op = scope->parse_scope.op;
+ *arg_list = scope->parse_scope.arg_list;
+ *arg_count = scope->parse_scope.arg_count;
+ parser_state->pkg_end = scope->parse_scope.pkg_end;
+
+ /* All done with this scope state structure */
+
+ acpi_ut_delete_generic_state(scope);
+ } else {
+ /* Empty parse stack, prepare to fetch next opcode */
+
+ *op = NULL;
+ *arg_list = 0;
+ *arg_count = 0;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "Popped Op %p Args %X\n", *op, *arg_count));
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_cleanup_scope
+ *
+ * PARAMETERS: parser_state - Current parser state object
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Destroy available list, remaining stack levels, and return
+ * root scope
+ *
+ ******************************************************************************/
+
+void acpi_ps_cleanup_scope(struct acpi_parse_state *parser_state)
+{
+ union acpi_generic_state *scope;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_cleanup_scope, parser_state);
+
+ if (!parser_state) {
+ return_VOID;
+ }
+
+ /* Delete anything on the scope stack */
+
+ while (parser_state->scope) {
+ scope = acpi_ut_pop_generic_state(&parser_state->scope);
+ acpi_ut_delete_generic_state(scope);
+ }
+
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: pstree - Parser op tree manipulation/traversal/search
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("pstree")
+
+/* Local prototypes */
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op);
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_arg
+ *
+ * PARAMETERS: Op - Get an argument for this op
+ * Argn - Nth argument to get
+ *
+ * RETURN: The argument (as an Op object). NULL if argument does not exist
+ *
+ * DESCRIPTION: Get the specified op's argument.
+ *
+ ******************************************************************************/
+
+union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn)
+{
+ union acpi_parse_object *arg = NULL;
+ const struct acpi_opcode_info *op_info;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Get the info structure for this opcode */
+
+ op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
+ if (op_info->class == AML_CLASS_UNKNOWN) {
+
+ /* Invalid opcode or ASCII character */
+
+ return (NULL);
+ }
+
+ /* Check if this opcode requires argument sub-objects */
+
+ if (!(op_info->flags & AML_HAS_ARGS)) {
+
+ /* Has no linked argument objects */
+
+ return (NULL);
+ }
+
+ /* Get the requested argument object */
+
+ arg = op->common.value.arg;
+ while (arg && argn) {
+ argn--;
+ arg = arg->common.next;
+ }
+
+ return (arg);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_append_arg
+ *
+ * PARAMETERS: Op - Append an argument to this Op.
+ * Arg - Argument Op to append
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Append an argument to an op's argument list (a NULL arg is OK)
+ *
+ ******************************************************************************/
+
+void
+acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg)
+{
+ union acpi_parse_object *prev_arg;
+ const struct acpi_opcode_info *op_info;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!op) {
+ return;
+ }
+
+ /* Get the info structure for this opcode */
+
+ op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
+ if (op_info->class == AML_CLASS_UNKNOWN) {
+
+ /* Invalid opcode */
+
+ ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X",
+ op->common.aml_opcode));
+ return;
+ }
+
+ /* Check if this opcode requires argument sub-objects */
+
+ if (!(op_info->flags & AML_HAS_ARGS)) {
+
+ /* Has no linked argument objects */
+
+ return;
+ }
+
+ /* Append the argument to the linked argument list */
+
+ if (op->common.value.arg) {
+
+ /* Append to existing argument list */
+
+ prev_arg = op->common.value.arg;
+ while (prev_arg->common.next) {
+ prev_arg = prev_arg->common.next;
+ }
+ prev_arg->common.next = arg;
+ } else {
+ /* No argument list, this will be the first argument */
+
+ op->common.value.arg = arg;
+ }
+
+ /* Set the parent in this arg and any args linked after it */
+
+ while (arg) {
+ arg->common.parent = op;
+ arg = arg->common.next;
+
+ op->common.arg_list_length++;
+ }
+}
+
+#ifdef ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_depth_next
+ *
+ * PARAMETERS: Origin - Root of subtree to search
+ * Op - Last (previous) Op that was found
+ *
+ * RETURN: Next Op found in the search.
+ *
+ * DESCRIPTION: Get next op in tree (walking the tree in depth-first order)
+ * Return NULL when reaching "origin" or when walking up from root
+ *
+ ******************************************************************************/
+
+union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
+ union acpi_parse_object *op)
+{
+ union acpi_parse_object *next = NULL;
+ union acpi_parse_object *parent;
+ union acpi_parse_object *arg;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!op) {
+ return (NULL);
+ }
+
+ /* Look for an argument or child */
+
+ next = acpi_ps_get_arg(op, 0);
+ if (next) {
+ return (next);
+ }
+
+ /* Look for a sibling */
+
+ next = op->common.next;
+ if (next) {
+ return (next);
+ }
+
+ /* Look for a sibling of parent */
+
+ parent = op->common.parent;
+
+ while (parent) {
+ arg = acpi_ps_get_arg(parent, 0);
+ while (arg && (arg != origin) && (arg != op)) {
+ arg = arg->common.next;
+ }
+
+ if (arg == origin) {
+
+ /* Reached parent of origin, end search */
+
+ return (NULL);
+ }
+
+ if (parent->common.next) {
+
+ /* Found sibling of parent */
+
+ return (parent->common.next);
+ }
+
+ op = parent;
+ parent = parent->common.parent;
+ }
+
+ return (next);
+}
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_get_child
+ *
+ * PARAMETERS: Op - Get the child of this Op
+ *
+ * RETURN: Child Op, Null if none is found.
+ *
+ * DESCRIPTION: Get op's children or NULL if none
+ *
+ ******************************************************************************/
+
+union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op)
+{
+ union acpi_parse_object *child = NULL;
+
+ ACPI_FUNCTION_ENTRY();
+
+ switch (op->common.aml_opcode) {
+ case AML_SCOPE_OP:
+ case AML_ELSE_OP:
+ case AML_DEVICE_OP:
+ case AML_THERMAL_ZONE_OP:
+ case AML_INT_METHODCALL_OP:
+
+ child = acpi_ps_get_arg(op, 0);
+ break;
+
+ case AML_BUFFER_OP:
+ case AML_PACKAGE_OP:
+ case AML_METHOD_OP:
+ case AML_IF_OP:
+ case AML_WHILE_OP:
+ case AML_FIELD_OP:
+
+ child = acpi_ps_get_arg(op, 1);
+ break;
+
+ case AML_POWER_RES_OP:
+ case AML_INDEX_FIELD_OP:
+
+ child = acpi_ps_get_arg(op, 2);
+ break;
+
+ case AML_PROCESSOR_OP:
+ case AML_BANK_FIELD_OP:
+
+ child = acpi_ps_get_arg(op, 3);
+ break;
+
+ default:
+ /* All others have no children */
+ break;
+ }
+
+ return (child);
+}
+#endif
+#endif /* ACPI_FUTURE_USAGE */
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psutils - Parser miscellaneous utilities (Parser only)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psutils")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_create_scope_op
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: A new Scope object, null on failure
+ *
+ * DESCRIPTION: Create a Scope and associated namepath op with the root name
+ *
+ ******************************************************************************/
+union acpi_parse_object *acpi_ps_create_scope_op(void)
+{
+ union acpi_parse_object *scope_op;
+
+ scope_op = acpi_ps_alloc_op(AML_SCOPE_OP);
+ if (!scope_op) {
+ return (NULL);
+ }
+
+ scope_op->named.name = ACPI_ROOT_NAME;
+ return (scope_op);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_init_op
+ *
+ * PARAMETERS: Op - A newly allocated Op object
+ * Opcode - Opcode to store in the Op
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Initialize a parse (Op) object
+ *
+ ******************************************************************************/
+
+void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ op->common.descriptor_type = ACPI_DESC_TYPE_PARSER;
+ op->common.aml_opcode = opcode;
+
+ ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name,
+ (acpi_ps_get_opcode_info
+ (opcode))->name,
+ sizeof(op->common.aml_op_name)));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_alloc_op
+ *
+ * PARAMETERS: Opcode - Opcode that will be stored in the new Op
+ *
+ * RETURN: Pointer to the new Op, null on failure
+ *
+ * DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on
+ * opcode. A cache of opcodes is available for the pure
+ * GENERIC_OP, since this is by far the most commonly used.
+ *
+ ******************************************************************************/
+
+union acpi_parse_object *acpi_ps_alloc_op(u16 opcode)
+{
+ union acpi_parse_object *op;
+ const struct acpi_opcode_info *op_info;
+ u8 flags = ACPI_PARSEOP_GENERIC;
+
+ ACPI_FUNCTION_ENTRY();
+
+ op_info = acpi_ps_get_opcode_info(opcode);
+
+ /* Determine type of parse_op required */
+
+ if (op_info->flags & AML_DEFER) {
+ flags = ACPI_PARSEOP_DEFERRED;
+ } else if (op_info->flags & AML_NAMED) {
+ flags = ACPI_PARSEOP_NAMED;
+ } else if (opcode == AML_INT_BYTELIST_OP) {
+ flags = ACPI_PARSEOP_BYTELIST;
+ }
+
+ /* Allocate the minimum required size object */
+
+ if (flags == ACPI_PARSEOP_GENERIC) {
+
+ /* The generic op (default) is by far the most common (16 to 1) */
+
+ op = acpi_os_acquire_object(acpi_gbl_ps_node_cache);
+ } else {
+ /* Extended parseop */
+
+ op = acpi_os_acquire_object(acpi_gbl_ps_node_ext_cache);
+ }
+
+ /* Initialize the Op */
+
+ if (op) {
+ acpi_ps_init_op(op, opcode);
+ op->common.flags = flags;
+ }
+
+ return (op);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_free_op
+ *
+ * PARAMETERS: Op - Op to be freed
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Free an Op object. Either put it on the GENERIC_OP cache list
+ * or actually free it.
+ *
+ ******************************************************************************/
+
+void acpi_ps_free_op(union acpi_parse_object *op)
+{
+ ACPI_FUNCTION_NAME(ps_free_op);
+
+ if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n",
+ op));
+ }
+
+ if (op->common.flags & ACPI_PARSEOP_GENERIC) {
+ (void)acpi_os_release_object(acpi_gbl_ps_node_cache, op);
+ } else {
+ (void)acpi_os_release_object(acpi_gbl_ps_node_ext_cache, op);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: Utility functions
+ *
+ * DESCRIPTION: Low level character and object functions
+ *
+ ******************************************************************************/
+
+/*
+ * Is "c" a namestring lead character?
+ */
+u8 acpi_ps_is_leading_char(u32 c)
+{
+ return ((u8) (c == '_' || (c >= 'A' && c <= 'Z')));
+}
+
+/*
+ * Is "c" a namestring prefix character?
+ */
+u8 acpi_ps_is_prefix_char(u32 c)
+{
+ return ((u8) (c == '\\' || c == '^'));
+}
+
+/*
+ * Get op's name (4-byte name segment) or 0 if unnamed
+ */
+#ifdef ACPI_FUTURE_USAGE
+u32 acpi_ps_get_name(union acpi_parse_object * op)
+{
+
+ /* The "generic" object has no name associated with it */
+
+ if (op->common.flags & ACPI_PARSEOP_GENERIC) {
+ return (0);
+ }
+
+ /* Only the "Extended" parse objects have a name */
+
+ return (op->named.name);
+}
+#endif /* ACPI_FUTURE_USAGE */
+
+/*
+ * Set op's name
+ */
+void acpi_ps_set_name(union acpi_parse_object *op, u32 name)
+{
+
+ /* The "generic" object has no name associated with it */
+
+ if (op->common.flags & ACPI_PARSEOP_GENERIC) {
+ return;
+ }
+
+ op->named.name = name;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: pswalk - Parser routines to walk parsed op tree(s)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("pswalk")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_delete_parse_tree
+ *
+ * PARAMETERS: subtree_root - Root of tree (or subtree) to delete
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete a portion of or an entire parse tree.
+ *
+ ******************************************************************************/
+void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
+{
+ union acpi_parse_object *op = subtree_root;
+ union acpi_parse_object *next = NULL;
+ union acpi_parse_object *parent = NULL;
+
+ ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root);
+
+ /* Visit all nodes in the subtree */
+
+ while (op) {
+
+ /* Check if we are not ascending */
+
+ if (op != parent) {
+
+ /* Look for an argument or child of the current op */
+
+ next = acpi_ps_get_arg(op, 0);
+ if (next) {
+
+ /* Still going downward in tree (Op is not completed yet) */
+
+ op = next;
+ continue;
+ }
+ }
+
+ /* No more children, this Op is complete. */
+
+ next = op->common.next;
+ parent = op->common.parent;
+
+ acpi_ps_free_op(op);
+
+ /* If we are back to the starting point, the walk is complete. */
+
+ if (op == subtree_root) {
+ return_VOID;
+ }
+ if (next) {
+ op = next;
+ } else {
+ op = parent;
+ }
+ }
+
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: psxface - Parser external interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+#include <acpi/amlcode.h>
+
+#define _COMPONENT ACPI_PARSER
+ACPI_MODULE_NAME("psxface")
+
+/* Local Prototypes */
+static void acpi_ps_start_trace(struct acpi_evaluate_info *info);
+
+static void acpi_ps_stop_trace(struct acpi_evaluate_info *info);
+
+static void
+acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_debug_trace
+ *
+ * PARAMETERS: method_name - Valid ACPI name string
+ * debug_level - Optional level mask. 0 to use default
+ * debug_layer - Optional layer mask. 0 to use default
+ * Flags - bit 1: one shot(1) or persistent(0)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: External interface to enable debug tracing during control
+ * method execution
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags)
+{
+ acpi_status status;
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* TBDs: Validate name, allow full path or just nameseg */
+
+ acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name);
+ acpi_gbl_trace_flags = flags;
+
+ if (debug_level) {
+ acpi_gbl_trace_dbg_level = debug_level;
+ }
+ if (debug_layer) {
+ acpi_gbl_trace_dbg_layer = debug_layer;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_start_trace
+ *
+ * PARAMETERS: Info - Method info struct
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Start control method execution trace
+ *
+ ******************************************************************************/
+
+static void acpi_ps_start_trace(struct acpi_evaluate_info *info)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_ENTRY();
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return;
+ }
+
+ if ((!acpi_gbl_trace_method_name) ||
+ (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) {
+ goto exit;
+ }
+
+ acpi_gbl_original_dbg_level = acpi_dbg_level;
+ acpi_gbl_original_dbg_layer = acpi_dbg_layer;
+
+ acpi_dbg_level = 0x00FFFFFF;
+ acpi_dbg_layer = ACPI_UINT32_MAX;
+
+ if (acpi_gbl_trace_dbg_level) {
+ acpi_dbg_level = acpi_gbl_trace_dbg_level;
+ }
+ if (acpi_gbl_trace_dbg_layer) {
+ acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
+ }
+
+ exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_stop_trace
+ *
+ * PARAMETERS: Info - Method info struct
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Stop control method execution trace
+ *
+ ******************************************************************************/
+
+static void acpi_ps_stop_trace(struct acpi_evaluate_info *info)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_ENTRY();
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return;
+ }
+
+ if ((!acpi_gbl_trace_method_name) ||
+ (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) {
+ goto exit;
+ }
+
+ /* Disable further tracing if type is one-shot */
+
+ if (acpi_gbl_trace_flags & 1) {
+ acpi_gbl_trace_method_name = 0;
+ acpi_gbl_trace_dbg_level = 0;
+ acpi_gbl_trace_dbg_layer = 0;
+ }
+
+ acpi_dbg_level = acpi_gbl_original_dbg_level;
+ acpi_dbg_layer = acpi_gbl_original_dbg_layer;
+
+ exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_execute_method
+ *
+ * PARAMETERS: Info - Method info block, contains:
+ * Node - Method Node to execute
+ * obj_desc - Method object
+ * Parameters - List of parameters to pass to the method,
+ * terminated by NULL. Params itself may be
+ * NULL if no parameters are being passed.
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * parameter_type - Type of Parameter list
+ * return_object - Where to put method's return value (if
+ * any). If NULL, no value is returned.
+ * pass_number - Parse or execute pass
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Execute a control method
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
+{
+ acpi_status status;
+ union acpi_parse_object *op;
+ struct acpi_walk_state *walk_state;
+
+ ACPI_FUNCTION_TRACE(ps_execute_method);
+
+ /* Validate the Info and method Node */
+
+ if (!info || !info->resolved_node) {
+ return_ACPI_STATUS(AE_NULL_ENTRY);
+ }
+
+ /* Init for new method, wait on concurrency semaphore */
+
+ status =
+ acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc,
+ NULL);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * The caller "owns" the parameters, so give each one an extra reference
+ */
+ acpi_ps_update_parameter_list(info, REF_INCREMENT);
+
+ /* Begin tracing if requested */
+
+ acpi_ps_start_trace(info);
+
+ /*
+ * Execute the method. Performs parse simultaneously
+ */
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
+ "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n",
+ info->resolved_node->name.ascii, info->resolved_node,
+ info->obj_desc));
+
+ /* Create and init a Root Node */
+
+ op = acpi_ps_create_scope_op();
+ if (!op) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ /* Create and initialize a new walk state */
+
+ info->pass_number = ACPI_IMODE_EXECUTE;
+ walk_state =
+ acpi_ds_create_walk_state(info->obj_desc->method.owner_id, NULL,
+ NULL, NULL);
+ if (!walk_state) {
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node,
+ info->obj_desc->method.aml_start,
+ info->obj_desc->method.aml_length, info,
+ info->pass_number);
+ if (ACPI_FAILURE(status)) {
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ /* Invoke an internal method if necessary */
+
+ if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
+ status = info->obj_desc->method.implementation(walk_state);
+ info->return_object = walk_state->return_desc;
+
+ /* Cleanup states */
+
+ acpi_ds_scope_stack_clear(walk_state);
+ acpi_ps_cleanup_scope(&walk_state->parser_state);
+ acpi_ds_terminate_control_method(walk_state->method_desc,
+ walk_state);
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ /*
+ * Start method evaluation with an implicit return of zero.
+ * This is done for Windows compatibility.
+ */
+ if (acpi_gbl_enable_interpreter_slack) {
+ walk_state->implicit_return_obj =
+ acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!walk_state->implicit_return_obj) {
+ status = AE_NO_MEMORY;
+ acpi_ds_delete_walk_state(walk_state);
+ goto cleanup;
+ }
+
+ walk_state->implicit_return_obj->integer.value = 0;
+ }
+
+ /* Parse the AML */
+
+ status = acpi_ps_parse_aml(walk_state);
+
+ /* walk_state was deleted by parse_aml */
+
+ cleanup:
+ acpi_ps_delete_parse_tree(op);
+
+ /* End optional tracing */
+
+ acpi_ps_stop_trace(info);
+
+ /* Take away the extra reference that we gave the parameters above */
+
+ acpi_ps_update_parameter_list(info, REF_DECREMENT);
+
+ /* Exit now if error above */
+
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * If the method has returned an object, signal this to the caller with
+ * a control exception code
+ */
+ if (info->return_object) {
+ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n",
+ info->return_object));
+ ACPI_DUMP_STACK_ENTRY(info->return_object);
+
+ status = AE_CTRL_RETURN_VALUE;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ps_update_parameter_list
+ *
+ * PARAMETERS: Info - See struct acpi_evaluate_info
+ * (Used: parameter_type and Parameters)
+ * Action - Add or Remove reference
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Update reference count on all method parameter objects
+ *
+ ******************************************************************************/
+
+static void
+acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action)
+{
+ u32 i;
+
+ if (info->parameters) {
+
+ /* Update reference count for each parameter */
+
+ for (i = 0; info->parameters[i]; i++) {
+
+ /* Ignore errors, just do them all */
+
+ (void)acpi_ut_update_object_reference(info->
+ parameters[i],
+ action);
+ }
+ }
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsaddr - Address resource descriptors (16/32/64)
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsaddr")
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_address16 - All WORD (16-bit) address resources
+ *
+ ******************************************************************************/
+struct acpi_rsconvert_info acpi_rs_convert_address16[5] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16,
+ ACPI_RS_SIZE(struct acpi_resource_address16),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16,
+ sizeof(struct aml_resource_address16),
+ 0},
+
+ /* Resource Type, General Flags, and Type-Specific Flags */
+
+ {ACPI_RSC_ADDRESS, 0, 0, 0},
+
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity),
+ AML_OFFSET(address16.granularity),
+ 5},
+
+ /* Optional resource_source (Index and String) */
+
+ {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source),
+ 0,
+ sizeof(struct aml_resource_address16)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_address32 - All DWORD (32-bit) address resources
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_address32[5] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32,
+ ACPI_RS_SIZE(struct acpi_resource_address32),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32,
+ sizeof(struct aml_resource_address32),
+ 0},
+
+ /* Resource Type, General Flags, and Type-Specific Flags */
+
+ {ACPI_RSC_ADDRESS, 0, 0, 0},
+
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity),
+ AML_OFFSET(address32.granularity),
+ 5},
+
+ /* Optional resource_source (Index and String) */
+
+ {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source),
+ 0,
+ sizeof(struct aml_resource_address32)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_address64 - All QWORD (64-bit) address resources
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_address64[5] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64,
+ ACPI_RS_SIZE(struct acpi_resource_address64),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64,
+ sizeof(struct aml_resource_address64),
+ 0},
+
+ /* Resource Type, General Flags, and Type-Specific Flags */
+
+ {ACPI_RSC_ADDRESS, 0, 0, 0},
+
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ */
+ {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity),
+ AML_OFFSET(address64.granularity),
+ 5},
+
+ /* Optional resource_source (Index and String) */
+
+ {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source),
+ 0,
+ sizeof(struct aml_resource_address64)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64,
+ ACPI_RS_SIZE(struct acpi_resource_extended_address64),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
+ sizeof(struct aml_resource_extended_address64),
+ 0},
+
+ /* Resource Type, General Flags, and Type-Specific Flags */
+
+ {ACPI_RSC_ADDRESS, 0, 0, 0},
+
+ /* Revision ID */
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD),
+ AML_OFFSET(ext_address64.revision_iD),
+ 1},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Address Granularity
+ * Address Range Minimum
+ * Address Range Maximum
+ * Address Translation Offset
+ * Address Length
+ * Type-Specific Attribute
+ */
+ {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity),
+ AML_OFFSET(ext_address64.granularity),
+ 6}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_general_flags - Flags common to all address descriptors
+ *
+ ******************************************************************************/
+
+static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = {
+ {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)},
+
+ /* Resource Type (Memory, Io, bus_number, etc.) */
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type),
+ AML_OFFSET(address.resource_type),
+ 1},
+
+ /* General Flags - Consume, Decode, min_fixed, max_fixed */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer),
+ AML_OFFSET(address.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode),
+ AML_OFFSET(address.flags),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed),
+ AML_OFFSET(address.flags),
+ 2},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed),
+ AML_OFFSET(address.flags),
+ 3}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors
+ *
+ ******************************************************************************/
+
+static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = {
+ {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)},
+
+ /* Memory-specific flags */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect),
+ AML_OFFSET(address.specific_flags),
+ 0},
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching),
+ AML_OFFSET(address.specific_flags),
+ 1},
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type),
+ AML_OFFSET(address.specific_flags),
+ 3},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation),
+ AML_OFFSET(address.specific_flags),
+ 5}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_io_flags - Flags common to I/O address descriptors
+ *
+ ******************************************************************************/
+
+static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = {
+ {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)},
+
+ /* I/O-specific flags */
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type),
+ AML_OFFSET(address.specific_flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation),
+ AML_OFFSET(address.specific_flags),
+ 4},
+
+ {ACPI_RSC_1BITFLAG,
+ ACPI_RS_OFFSET(data.address.info.io.translation_type),
+ AML_OFFSET(address.specific_flags),
+ 5}
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_address_common
+ *
+ * PARAMETERS: Resource - Pointer to the internal resource struct
+ * Aml - Pointer to the AML resource descriptor
+ *
+ * RETURN: TRUE if the resource_type field is OK, FALSE otherwise
+ *
+ * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
+ * to an internal resource descriptor
+ *
+ ******************************************************************************/
+
+u8
+acpi_rs_get_address_common(struct acpi_resource *resource,
+ union aml_resource *aml)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Validate the Resource Type */
+
+ if ((aml->address.resource_type > 2)
+ && (aml->address.resource_type < 0xC0)) {
+ return (FALSE);
+ }
+
+ /* Get the Resource Type and General Flags */
+
+ (void)acpi_rs_convert_aml_to_resource(resource, aml,
+ acpi_rs_convert_general_flags);
+
+ /* Get the Type-Specific Flags (Memory and I/O descriptors only) */
+
+ if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
+ (void)acpi_rs_convert_aml_to_resource(resource, aml,
+ acpi_rs_convert_mem_flags);
+ } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
+ (void)acpi_rs_convert_aml_to_resource(resource, aml,
+ acpi_rs_convert_io_flags);
+ } else {
+ /* Generic resource type, just grab the type_specific byte */
+
+ resource->data.address.info.type_specific =
+ aml->address.specific_flags;
+ }
+
+ return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_set_address_common
+ *
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * Resource - Pointer to the internal resource struct
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Convert common flag fields from a resource descriptor to an
+ * AML descriptor
+ *
+ ******************************************************************************/
+
+void
+acpi_rs_set_address_common(union aml_resource *aml,
+ struct acpi_resource *resource)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Set the Resource Type and General Flags */
+
+ (void)acpi_rs_convert_resource_to_aml(resource, aml,
+ acpi_rs_convert_general_flags);
+
+ /* Set the Type-Specific Flags (Memory and I/O descriptors only) */
+
+ if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
+ (void)acpi_rs_convert_resource_to_aml(resource, aml,
+ acpi_rs_convert_mem_flags);
+ } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
+ (void)acpi_rs_convert_resource_to_aml(resource, aml,
+ acpi_rs_convert_io_flags);
+ } else {
+ /* Generic resource type, just copy the type_specific byte */
+
+ aml->address.specific_flags =
+ resource->data.address.info.type_specific;
+ }
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rscalc - Calculate stream and list lengths
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rscalc")
+
+/* Local prototypes */
+static u8 acpi_rs_count_set_bits(u16 bit_field);
+
+static acpi_rs_length
+acpi_rs_struct_option_length(struct acpi_resource_source *resource_source);
+
+static u32
+acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_count_set_bits
+ *
+ * PARAMETERS: bit_field - Field in which to count bits
+ *
+ * RETURN: Number of bits set within the field
+ *
+ * DESCRIPTION: Count the number of bits set in a resource field. Used for
+ * (Short descriptor) interrupt and DMA lists.
+ *
+ ******************************************************************************/
+
+static u8 acpi_rs_count_set_bits(u16 bit_field)
+{
+ u8 bits_set;
+
+ ACPI_FUNCTION_ENTRY();
+
+ for (bits_set = 0; bit_field; bits_set++) {
+
+ /* Zero the least significant bit that is set */
+
+ bit_field &= (u16) (bit_field - 1);
+ }
+
+ return bits_set;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_struct_option_length
+ *
+ * PARAMETERS: resource_source - Pointer to optional descriptor field
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Common code to handle optional resource_source_index and
+ * resource_source fields in some Large descriptors. Used during
+ * list-to-stream conversion
+ *
+ ******************************************************************************/
+
+static acpi_rs_length
+acpi_rs_struct_option_length(struct acpi_resource_source *resource_source)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * If the resource_source string is valid, return the size of the string
+ * (string_length includes the NULL terminator) plus the size of the
+ * resource_source_index (1).
+ */
+ if (resource_source->string_ptr) {
+ return ((acpi_rs_length) (resource_source->string_length + 1));
+ }
+
+ return (0);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_stream_option_length
+ *
+ * PARAMETERS: resource_length - Length from the resource header
+ * minimum_total_length - Minimum length of this resource, before
+ * any optional fields. Includes header size
+ *
+ * RETURN: Length of optional string (0 if no string present)
+ *
+ * DESCRIPTION: Common code to handle optional resource_source_index and
+ * resource_source fields in some Large descriptors. Used during
+ * stream-to-list conversion
+ *
+ ******************************************************************************/
+
+static u32
+acpi_rs_stream_option_length(u32 resource_length,
+ u32 minimum_aml_resource_length)
+{
+ u32 string_length = 0;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * The resource_source_index and resource_source are optional elements of some
+ * Large-type resource descriptors.
+ */
+
+ /*
+ * If the length of the actual resource descriptor is greater than the ACPI
+ * spec-defined minimum length, it means that a resource_source_index exists
+ * and is followed by a (required) null terminated string. The string length
+ * (including the null terminator) is the resource length minus the minimum
+ * length, minus one byte for the resource_source_index itself.
+ */
+ if (resource_length > minimum_aml_resource_length) {
+
+ /* Compute the length of the optional string */
+
+ string_length =
+ resource_length - minimum_aml_resource_length - 1;
+ }
+
+ /*
+ * Round the length up to a multiple of the native word in order to
+ * guarantee that the entire resource descriptor is native word aligned
+ */
+ return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_aml_length
+ *
+ * PARAMETERS: Resource - Pointer to the resource linked list
+ * size_needed - Where the required size is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Takes a linked list of internal resource descriptors and
+ * calculates the size buffer needed to hold the corresponding
+ * external resource byte stream.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
+{
+ acpi_size aml_size_needed = 0;
+ acpi_rs_length total_size;
+
+ ACPI_FUNCTION_TRACE(rs_get_aml_length);
+
+ /* Traverse entire list of internal resource descriptors */
+
+ while (resource) {
+
+ /* Validate the descriptor type */
+
+ if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
+ return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
+ }
+
+ /* Get the base size of the (external stream) resource descriptor */
+
+ total_size = acpi_gbl_aml_resource_sizes[resource->type];
+
+ /*
+ * Augment the base size for descriptors with optional and/or
+ * variable-length fields
+ */
+ switch (resource->type) {
+ case ACPI_RESOURCE_TYPE_IRQ:
+
+ /* Length can be 3 or 2 */
+
+ if (resource->data.irq.descriptor_length == 2) {
+ total_size--;
+ }
+ break;
+
+ case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+
+ /* Length can be 1 or 0 */
+
+ if (resource->data.irq.descriptor_length == 0) {
+ total_size--;
+ }
+ break;
+
+ case ACPI_RESOURCE_TYPE_VENDOR:
+ /*
+ * Vendor Defined Resource:
+ * For a Vendor Specific resource, if the Length is between 1 and 7
+ * it will be created as a Small Resource data type, otherwise it
+ * is a Large Resource data type.
+ */
+ if (resource->data.vendor.byte_length > 7) {
+
+ /* Base size of a Large resource descriptor */
+
+ total_size =
+ sizeof(struct aml_resource_large_header);
+ }
+
+ /* Add the size of the vendor-specific data */
+
+ total_size = (acpi_rs_length)
+ (total_size + resource->data.vendor.byte_length);
+ break;
+
+ case ACPI_RESOURCE_TYPE_END_TAG:
+ /*
+ * End Tag:
+ * We are done -- return the accumulated total size.
+ */
+ *size_needed = aml_size_needed + total_size;
+
+ /* Normal exit */
+
+ return_ACPI_STATUS(AE_OK);
+
+ case ACPI_RESOURCE_TYPE_ADDRESS16:
+ /*
+ * 16-Bit Address Resource:
+ * Add the size of the optional resource_source info
+ */
+ total_size = (acpi_rs_length)
+ (total_size +
+ acpi_rs_struct_option_length(&resource->data.
+ address16.
+ resource_source));
+ break;
+
+ case ACPI_RESOURCE_TYPE_ADDRESS32:
+ /*
+ * 32-Bit Address Resource:
+ * Add the size of the optional resource_source info
+ */
+ total_size = (acpi_rs_length)
+ (total_size +
+ acpi_rs_struct_option_length(&resource->data.
+ address32.
+ resource_source));
+ break;
+
+ case ACPI_RESOURCE_TYPE_ADDRESS64:
+ /*
+ * 64-Bit Address Resource:
+ * Add the size of the optional resource_source info
+ */
+ total_size = (acpi_rs_length)
+ (total_size +
+ acpi_rs_struct_option_length(&resource->data.
+ address64.
+ resource_source));
+ break;
+
+ case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+ /*
+ * Extended IRQ Resource:
+ * Add the size of each additional optional interrupt beyond the
+ * required 1 (4 bytes for each u32 interrupt number)
+ */
+ total_size = (acpi_rs_length)
+ (total_size +
+ ((resource->data.extended_irq.interrupt_count -
+ 1) * 4) +
+ /* Add the size of the optional resource_source info */
+ acpi_rs_struct_option_length(&resource->data.
+ extended_irq.
+ resource_source));
+ break;
+
+ default:
+ break;
+ }
+
+ /* Update the total */
+
+ aml_size_needed += total_size;
+
+ /* Point to the next object */
+
+ resource =
+ ACPI_ADD_PTR(struct acpi_resource, resource,
+ resource->length);
+ }
+
+ /* Did not find an end_tag resource descriptor */
+
+ return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_list_length
+ *
+ * PARAMETERS: aml_buffer - Pointer to the resource byte stream
+ * aml_buffer_length - Size of aml_buffer
+ * size_needed - Where the size needed is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Takes an external resource byte stream and calculates the size
+ * buffer needed to hold the corresponding internal resource
+ * descriptor linked list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_get_list_length(u8 * aml_buffer,
+ u32 aml_buffer_length, acpi_size * size_needed)
+{
+ acpi_status status;
+ u8 *end_aml;
+ u8 *buffer;
+ u32 buffer_size;
+ u16 temp16;
+ u16 resource_length;
+ u32 extra_struct_bytes;
+ u8 resource_index;
+ u8 minimum_aml_resource_length;
+
+ ACPI_FUNCTION_TRACE(rs_get_list_length);
+
+ *size_needed = 0;
+ end_aml = aml_buffer + aml_buffer_length;
+
+ /* Walk the list of AML resource descriptors */
+
+ while (aml_buffer < end_aml) {
+
+ /* Validate the Resource Type and Resource Length */
+
+ status = acpi_ut_validate_resource(aml_buffer, &resource_index);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the resource length and base (minimum) AML size */
+
+ resource_length = acpi_ut_get_resource_length(aml_buffer);
+ minimum_aml_resource_length =
+ acpi_gbl_resource_aml_sizes[resource_index];
+
+ /*
+ * Augment the size for descriptors with optional
+ * and/or variable length fields
+ */
+ extra_struct_bytes = 0;
+ buffer =
+ aml_buffer + acpi_ut_get_resource_header_length(aml_buffer);
+
+ switch (acpi_ut_get_resource_type(aml_buffer)) {
+ case ACPI_RESOURCE_NAME_IRQ:
+ /*
+ * IRQ Resource:
+ * Get the number of bits set in the 16-bit IRQ mask
+ */
+ ACPI_MOVE_16_TO_16(&temp16, buffer);
+ extra_struct_bytes = acpi_rs_count_set_bits(temp16);
+ break;
+
+ case ACPI_RESOURCE_NAME_DMA:
+ /*
+ * DMA Resource:
+ * Get the number of bits set in the 8-bit DMA mask
+ */
+ extra_struct_bytes = acpi_rs_count_set_bits(*buffer);
+ break;
+
+ case ACPI_RESOURCE_NAME_VENDOR_SMALL:
+ case ACPI_RESOURCE_NAME_VENDOR_LARGE:
+ /*
+ * Vendor Resource:
+ * Get the number of vendor data bytes
+ */
+ extra_struct_bytes = resource_length;
+ break;
+
+ case ACPI_RESOURCE_NAME_END_TAG:
+ /*
+ * End Tag:
+ * This is the normal exit, add size of end_tag
+ */
+ *size_needed += ACPI_RS_SIZE_MIN;
+ return_ACPI_STATUS(AE_OK);
+
+ case ACPI_RESOURCE_NAME_ADDRESS32:
+ case ACPI_RESOURCE_NAME_ADDRESS16:
+ case ACPI_RESOURCE_NAME_ADDRESS64:
+ /*
+ * Address Resource:
+ * Add the size of the optional resource_source
+ */
+ extra_struct_bytes =
+ acpi_rs_stream_option_length(resource_length,
+ minimum_aml_resource_length);
+ break;
+
+ case ACPI_RESOURCE_NAME_EXTENDED_IRQ:
+ /*
+ * Extended IRQ Resource:
+ * Using the interrupt_table_length, add 4 bytes for each additional
+ * interrupt. Note: at least one interrupt is required and is
+ * included in the minimum descriptor size (reason for the -1)
+ */
+ extra_struct_bytes = (buffer[1] - 1) * sizeof(u32);
+
+ /* Add the size of the optional resource_source */
+
+ extra_struct_bytes +=
+ acpi_rs_stream_option_length(resource_length -
+ extra_struct_bytes,
+ minimum_aml_resource_length);
+ break;
+
+ default:
+ break;
+ }
+
+ /*
+ * Update the required buffer size for the internal descriptor structs
+ *
+ * Important: Round the size up for the appropriate alignment. This
+ * is a requirement on IA64.
+ */
+ buffer_size = acpi_gbl_resource_struct_sizes[resource_index] +
+ extra_struct_bytes;
+ buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
+
+ *size_needed += buffer_size;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
+ "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
+ acpi_ut_get_resource_type(aml_buffer),
+ acpi_ut_get_descriptor_length(aml_buffer),
+ buffer_size));
+
+ /*
+ * Point to the next resource within the AML stream using the length
+ * contained in the resource descriptor header
+ */
+ aml_buffer += acpi_ut_get_descriptor_length(aml_buffer);
+ }
+
+ /* Did not find an end_tag resource descriptor */
+
+ return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_pci_routing_table_length
+ *
+ * PARAMETERS: package_object - Pointer to the package object
+ * buffer_size_needed - u32 pointer of the size buffer
+ * needed to properly return the
+ * parsed data
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Given a package representing a PCI routing table, this
+ * calculates the size of the corresponding linked list of
+ * descriptions.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
+ acpi_size * buffer_size_needed)
+{
+ u32 number_of_elements;
+ acpi_size temp_size_needed = 0;
+ union acpi_operand_object **top_object_list;
+ u32 index;
+ union acpi_operand_object *package_element;
+ union acpi_operand_object **sub_object_list;
+ u8 name_found;
+ u32 table_index;
+
+ ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length);
+
+ number_of_elements = package_object->package.count;
+
+ /*
+ * Calculate the size of the return buffer.
+ * The base size is the number of elements * the sizes of the
+ * structures. Additional space for the strings is added below.
+ * The minus one is to subtract the size of the u8 Source[1]
+ * member because it is added below.
+ *
+ * But each PRT_ENTRY structure has a pointer to a string and
+ * the size of that string must be found.
+ */
+ top_object_list = package_object->package.elements;
+
+ for (index = 0; index < number_of_elements; index++) {
+
+ /* Dereference the sub-package */
+
+ package_element = *top_object_list;
+
+ /*
+ * The sub_object_list will now point to an array of the
+ * four IRQ elements: Address, Pin, Source and source_index
+ */
+ sub_object_list = package_element->package.elements;
+
+ /* Scan the irq_table_elements for the Source Name String */
+
+ name_found = FALSE;
+
+ for (table_index = 0; table_index < 4 && !name_found;
+ table_index++) {
+ if (*sub_object_list && /* Null object allowed */
+ ((ACPI_TYPE_STRING ==
+ ACPI_GET_OBJECT_TYPE(*sub_object_list)) ||
+ ((ACPI_TYPE_LOCAL_REFERENCE ==
+ ACPI_GET_OBJECT_TYPE(*sub_object_list)) &&
+ ((*sub_object_list)->reference.class ==
+ ACPI_REFCLASS_NAME)))) {
+ name_found = TRUE;
+ } else {
+ /* Look at the next element */
+
+ sub_object_list++;
+ }
+ }
+
+ temp_size_needed += (sizeof(struct acpi_pci_routing_table) - 4);
+
+ /* Was a String type found? */
+
+ if (name_found) {
+ if (ACPI_GET_OBJECT_TYPE(*sub_object_list) ==
+ ACPI_TYPE_STRING) {
+ /*
+ * The length String.Length field does not include the
+ * terminating NULL, add 1
+ */
+ temp_size_needed += ((acpi_size)
+ (*sub_object_list)->string.
+ length + 1);
+ } else {
+ temp_size_needed +=
+ acpi_ns_get_pathname_length((*sub_object_list)->reference.node);
+ if (!temp_size_needed) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+ }
+ } else {
+ /*
+ * If no name was found, then this is a NULL, which is
+ * translated as a u32 zero.
+ */
+ temp_size_needed += sizeof(u32);
+ }
+
+ /* Round up the size since each element must be aligned */
+
+ temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed);
+
+ /* Point to the next union acpi_operand_object */
+
+ top_object_list++;
+ }
+
+ /*
+ * Add an extra element to the end of the list, essentially a
+ * NULL terminator
+ */
+ *buffer_size_needed =
+ temp_size_needed + sizeof(struct acpi_pci_routing_table);
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rscreate - Create resource lists/tables
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rscreate")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_create_resource_list
+ *
+ * PARAMETERS: aml_buffer - Pointer to the resource byte stream
+ * output_buffer - Pointer to the user's buffer
+ *
+ * RETURN: Status: AE_OK if okay, else a valid acpi_status code
+ * If output_buffer is not large enough, output_buffer_length
+ * indicates how large output_buffer should be, else it
+ * indicates how may u8 elements of output_buffer are valid.
+ *
+ * DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
+ * execution and parses the stream to create a linked list
+ * of device resources.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
+ struct acpi_buffer *output_buffer)
+{
+
+ acpi_status status;
+ u8 *aml_start;
+ acpi_size list_size_needed = 0;
+ u32 aml_buffer_length;
+ void *resource;
+
+ ACPI_FUNCTION_TRACE(rs_create_resource_list);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer));
+
+ /* Params already validated, so we don't re-validate here */
+
+ aml_buffer_length = aml_buffer->buffer.length;
+ aml_start = aml_buffer->buffer.pointer;
+
+ /*
+ * Pass the aml_buffer into a module that can calculate
+ * the buffer size needed for the linked list
+ */
+ status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
+ &list_size_needed);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
+ status, (u32) list_size_needed));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status = acpi_ut_initialize_buffer(output_buffer, list_size_needed);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Do the conversion */
+
+ resource = output_buffer->pointer;
+ status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length,
+ acpi_rs_convert_aml_to_resources,
+ &resource);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
+ output_buffer->pointer, (u32) output_buffer->length));
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_create_pci_routing_table
+ *
+ * PARAMETERS: package_object - Pointer to an union acpi_operand_object
+ * package
+ * output_buffer - Pointer to the user's buffer
+ *
+ * RETURN: Status AE_OK if okay, else a valid acpi_status code.
+ * If the output_buffer is too small, the error will be
+ * AE_BUFFER_OVERFLOW and output_buffer->Length will point
+ * to the size buffer needed.
+ *
+ * DESCRIPTION: Takes the union acpi_operand_object package and creates a
+ * linked list of PCI interrupt descriptions
+ *
+ * NOTE: It is the caller's responsibility to ensure that the start of the
+ * output buffer is aligned properly (if necessary).
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
+ struct acpi_buffer *output_buffer)
+{
+ u8 *buffer;
+ union acpi_operand_object **top_object_list;
+ union acpi_operand_object **sub_object_list;
+ union acpi_operand_object *obj_desc;
+ acpi_size buffer_size_needed = 0;
+ u32 number_of_elements;
+ u32 index;
+ struct acpi_pci_routing_table *user_prt;
+ struct acpi_namespace_node *node;
+ acpi_status status;
+ struct acpi_buffer path_buffer;
+
+ ACPI_FUNCTION_TRACE(rs_create_pci_routing_table);
+
+ /* Params already validated, so we don't re-validate here */
+
+ /* Get the required buffer length */
+
+ status = acpi_rs_get_pci_routing_table_length(package_object,
+ &buffer_size_needed);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
+ (u32) buffer_size_needed));
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status = acpi_ut_initialize_buffer(output_buffer, buffer_size_needed);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
+ * package that in turn contains an acpi_integer Address, a u8 Pin,
+ * a Name, and a u8 source_index.
+ */
+ top_object_list = package_object->package.elements;
+ number_of_elements = package_object->package.count;
+ buffer = output_buffer->pointer;
+ user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
+
+ for (index = 0; index < number_of_elements; index++) {
+ int source_name_index = 2;
+ int source_index_index = 3;
+
+ /*
+ * Point user_prt past this current structure
+ *
+ * NOTE: On the first iteration, user_prt->Length will
+ * be zero because we cleared the return buffer earlier
+ */
+ buffer += user_prt->length;
+ user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
+
+ /*
+ * Fill in the Length field with the information we have at this point.
+ * The minus four is to subtract the size of the u8 Source[4] member
+ * because it is added below.
+ */
+ user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4);
+
+ /* Each element of the top-level package must also be a package */
+
+ if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X]) Need sub-package, found %s",
+ index,
+ acpi_ut_get_object_type_name
+ (*top_object_list)));
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+ }
+
+ /* Each sub-package must be of length 4 */
+
+ if ((*top_object_list)->package.count != 4) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X]) Need package of length 4, found length %d",
+ index, (*top_object_list)->package.count));
+ return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
+ }
+
+ /*
+ * Dereference the sub-package.
+ * The sub_object_list will now point to an array of the four IRQ
+ * elements: [Address, Pin, Source, source_index]
+ */
+ sub_object_list = (*top_object_list)->package.elements;
+
+ /* 1) First subobject: Dereference the PRT.Address */
+
+ obj_desc = sub_object_list[0];
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Address) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name(obj_desc)));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ user_prt->address = obj_desc->integer.value;
+
+ /* 2) Second subobject: Dereference the PRT.Pin */
+
+ obj_desc = sub_object_list[1];
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Pin) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name(obj_desc)));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ /*
+ * If BIOS erroneously reversed the _PRT source_name and source_index,
+ * then reverse them back.
+ */
+ if (ACPI_GET_OBJECT_TYPE(sub_object_list[3]) !=
+ ACPI_TYPE_INTEGER) {
+ if (acpi_gbl_enable_interpreter_slack) {
+ source_name_index = 3;
+ source_index_index = 2;
+ printk(KERN_WARNING
+ "ACPI: Handling Garbled _PRT entry\n");
+ } else {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].source_index) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name
+ (sub_object_list[3])));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+ }
+
+ user_prt->pin = (u32) obj_desc->integer.value;
+
+ /*
+ * If the BIOS has erroneously reversed the _PRT source_name (index 2)
+ * and the source_index (index 3), fix it. _PRT is important enough to
+ * workaround this BIOS error. This also provides compatibility with
+ * other ACPI implementations.
+ */
+ obj_desc = sub_object_list[3];
+ if (!obj_desc
+ || (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) {
+ sub_object_list[3] = sub_object_list[2];
+ sub_object_list[2] = obj_desc;
+
+ ACPI_WARNING((AE_INFO,
+ "(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed",
+ index));
+ }
+
+ /*
+ * 3) Third subobject: Dereference the PRT.source_name
+ * The name may be unresolved (slack mode), so allow a null object
+ */
+ obj_desc = sub_object_list[source_name_index];
+ if (obj_desc) {
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ if (obj_desc->reference.class !=
+ ACPI_REFCLASS_NAME) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Source) Need name, found Reference Class %X",
+ index,
+ obj_desc->reference.class));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ node = obj_desc->reference.node;
+
+ /* Use *remaining* length of the buffer as max for pathname */
+
+ path_buffer.length = output_buffer->length -
+ (u32) ((u8 *) user_prt->source -
+ (u8 *) output_buffer->pointer);
+ path_buffer.pointer = user_prt->source;
+
+ status =
+ acpi_ns_handle_to_pathname((acpi_handle)
+ node,
+ &path_buffer);
+
+ /* +1 to include null terminator */
+
+ user_prt->length +=
+ (u32) ACPI_STRLEN(user_prt->source) + 1;
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ ACPI_STRCPY(user_prt->source,
+ obj_desc->string.pointer);
+
+ /*
+ * Add to the Length field the length of the string
+ * (add 1 for terminator)
+ */
+ user_prt->length += obj_desc->string.length + 1;
+ break;
+
+ case ACPI_TYPE_INTEGER:
+ /*
+ * If this is a number, then the Source Name is NULL, since the
+ * entire buffer was zeroed out, we can leave this alone.
+ *
+ * Add to the Length field the length of the u32 NULL
+ */
+ user_prt->length += sizeof(u32);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].Source) Need Ref/String/Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name
+ (obj_desc)));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+ }
+
+ /* Now align the current length */
+
+ user_prt->length =
+ (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
+
+ /* 4) Fourth subobject: Dereference the PRT.source_index */
+
+ obj_desc = sub_object_list[source_index_index];
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
+ ACPI_ERROR((AE_INFO,
+ "(PRT[%X].SourceIndex) Need Integer, found %s",
+ index,
+ acpi_ut_get_object_type_name(obj_desc)));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ user_prt->source_index = (u32) obj_desc->integer.value;
+
+ /* Point to the next union acpi_operand_object in the top level package */
+
+ top_object_list++;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
+ output_buffer->pointer, (u32) output_buffer->length));
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_create_aml_resources
+ *
+ * PARAMETERS: linked_list_buffer - Pointer to the resource linked list
+ * output_buffer - Pointer to the user's buffer
+ *
+ * RETURN: Status AE_OK if okay, else a valid acpi_status code.
+ * If the output_buffer is too small, the error will be
+ * AE_BUFFER_OVERFLOW and output_buffer->Length will point
+ * to the size buffer needed.
+ *
+ * DESCRIPTION: Takes the linked list of device resources and
+ * creates a bytestream to be used as input for the
+ * _SRS control method.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
+ struct acpi_buffer *output_buffer)
+{
+ acpi_status status;
+ acpi_size aml_size_needed = 0;
+
+ ACPI_FUNCTION_TRACE(rs_create_aml_resources);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
+ linked_list_buffer));
+
+ /*
+ * Params already validated, so we don't re-validate here
+ *
+ * Pass the linked_list_buffer into a module that calculates
+ * the buffer size needed for the byte stream.
+ */
+ status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
+ (u32) aml_size_needed,
+ acpi_format_exception(status)));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Do the conversion */
+
+ status =
+ acpi_rs_convert_resources_to_aml(linked_list_buffer,
+ aml_size_needed,
+ output_buffer->pointer);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
+ output_buffer->pointer, (u32) output_buffer->length));
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsdump - Functions to display the resource structures.
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsdump")
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+/* Local prototypes */
+static void acpi_rs_out_string(char *title, char *value);
+
+static void acpi_rs_out_integer8(char *title, u8 value);
+
+static void acpi_rs_out_integer16(char *title, u16 value);
+
+static void acpi_rs_out_integer32(char *title, u32 value);
+
+static void acpi_rs_out_integer64(char *title, u64 value);
+
+static void acpi_rs_out_title(char *title);
+
+static void acpi_rs_dump_byte_list(u16 length, u8 * data);
+
+static void acpi_rs_dump_dword_list(u8 length, u32 * data);
+
+static void acpi_rs_dump_short_byte_list(u8 length, u8 * data);
+
+static void
+acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
+
+static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
+
+static void
+acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
+
+#define ACPI_RSD_OFFSET(f) (u8) ACPI_OFFSET (union acpi_resource_data,f)
+#define ACPI_PRT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f)
+#define ACPI_RSD_TABLE_SIZE(name) (sizeof(name) / sizeof (struct acpi_rsdump_info))
+
+/*******************************************************************************
+ *
+ * Resource Descriptor info tables
+ *
+ * Note: The first table entry must be a Title or Literal and must contain
+ * the table length (number of table entries)
+ *
+ ******************************************************************************/
+
+struct acpi_rsdump_info acpi_rs_dump_irq[7] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.descriptor_length),
+ "Descriptor Length", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering",
+ acpi_gbl_he_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity",
+ acpi_gbl_ll_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
+ acpi_gbl_shr_decode},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count),
+ "Interrupt Count", NULL},
+ {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]),
+ "Interrupt List", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_dma[6] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed",
+ acpi_gbl_typ_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering",
+ acpi_gbl_bm_decode},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type",
+ acpi_gbl_siz_decode},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count",
+ NULL},
+ {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List",
+ NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_start_dpf[4] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_start_dpf),
+ "Start-Dependent-Functions", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(start_dpf.descriptor_length),
+ "Descriptor Length", NULL},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.compatibility_priority),
+ "Compatibility Priority", acpi_gbl_config_decode},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.performance_robustness),
+ "Performance/Robustness", acpi_gbl_config_decode}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_end_dpf[1] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_dpf),
+ "End-Dependent-Functions", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_io[6] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io), "I/O", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(io.io_decode), "Address Decoding",
+ acpi_gbl_io_decode},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.minimum), "Address Minimum", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.maximum), "Address Maximum", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.alignment), "Alignment", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.address_length), "Address Length",
+ NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_fixed_io[3] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_io),
+ "Fixed I/O", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_io.address), "Address", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_io.address_length),
+ "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_vendor[3] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_vendor),
+ "Vendor Specific", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(vendor.byte_length), "Length", NULL},
+ {ACPI_RSD_LONGLIST, ACPI_RSD_OFFSET(vendor.byte_data[0]), "Vendor Data",
+ NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag",
+ NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_memory24[6] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24),
+ "24-Bit Memory Range", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect),
+ "Write Protect", acpi_gbl_rw_decode},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.alignment), "Alignment",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.address_length),
+ "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_memory32[6] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32),
+ "32-Bit Memory Range", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect),
+ "Write Protect", acpi_gbl_rw_decode},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.alignment), "Alignment",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.address_length),
+ "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32),
+ "32-Bit Fixed Memory Range", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect),
+ "Write Protect", acpi_gbl_rw_decode},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length),
+ "Address Length", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_address16[8] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16),
+ "16-Bit WORD Address Space", NULL},
+ {ACPI_RSD_ADDRESS, 0, NULL, NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum",
+ NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset),
+ "Translation Offset", NULL},
+ {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length),
+ "Address Length", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_address32[8] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32),
+ "32-Bit DWORD Address Space", NULL},
+ {ACPI_RSD_ADDRESS, 0, NULL, NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum",
+ NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset),
+ "Translation Offset", NULL},
+ {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length),
+ "Address Length", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_address64[8] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64),
+ "64-Bit QWORD Address Space", NULL},
+ {ACPI_RSD_ADDRESS, 0, NULL, NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity",
+ NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum",
+ NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum",
+ NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset),
+ "Translation Offset", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length),
+ "Address Length", NULL},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64),
+ "64-Bit Extended Address Space", NULL},
+ {ACPI_RSD_ADDRESS, 0, NULL, NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity),
+ "Granularity", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum),
+ "Address Minimum", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum),
+ "Address Maximum", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset),
+ "Translation Offset", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length),
+ "Address Length", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific),
+ "Type-Specific Attribute", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_irq),
+ "Extended IRQ", NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer),
+ "Type", acpi_gbl_consume_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering),
+ "Triggering", acpi_gbl_he_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity",
+ acpi_gbl_ll_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
+ acpi_gbl_shr_decode},
+ {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL,
+ NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count),
+ "Interrupt Count", NULL},
+ {ACPI_RSD_DWORDLIST, ACPI_RSD_OFFSET(extended_irq.interrupts[0]),
+ "Interrupt List", NULL}
+};
+
+struct acpi_rsdump_info acpi_rs_dump_generic_reg[6] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_generic_reg),
+ "Generic Register", NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.space_id), "Space ID",
+ NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_width), "Bit Width",
+ NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_offset), "Bit Offset",
+ NULL},
+ {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.access_size),
+ "Access Size", NULL},
+ {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(generic_reg.address), "Address", NULL}
+};
+
+/*
+ * Tables used for common address descriptor flag fields
+ */
+static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_general_flags), NULL,
+ NULL},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer),
+ "Consumer/Producer", acpi_gbl_consume_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode",
+ acpi_gbl_dec_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed),
+ "Min Relocatability", acpi_gbl_min_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed),
+ "Max Relocatability", acpi_gbl_max_decode}
+};
+
+static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = {
+ {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags),
+ "Resource Type", (void *)"Memory Range"},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect),
+ "Write Protect", acpi_gbl_rw_decode},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching),
+ "Caching", acpi_gbl_mem_decode},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type),
+ "Range Type", acpi_gbl_mtp_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation),
+ "Translation", acpi_gbl_ttp_decode}
+};
+
+static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = {
+ {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags),
+ "Resource Type", (void *)"I/O Range"},
+ {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type),
+ "Range Type", acpi_gbl_rng_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation),
+ "Translation", acpi_gbl_ttp_decode},
+ {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type),
+ "Translation Type", acpi_gbl_trs_decode}
+};
+
+/*
+ * Table used to dump _PRT contents
+ */
+static struct acpi_rsdump_info acpi_rs_dump_prt[5] = {
+ {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_prt), NULL, NULL},
+ {ACPI_RSD_UINT64, ACPI_PRT_OFFSET(address), "Address", NULL},
+ {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(pin), "Pin", NULL},
+ {ACPI_RSD_STRING, ACPI_PRT_OFFSET(source[0]), "Source", NULL},
+ {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(source_index), "Source Index", NULL}
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_dump_descriptor
+ *
+ * PARAMETERS: Resource
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION:
+ *
+ ******************************************************************************/
+
+static void
+acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
+{
+ u8 *target = NULL;
+ u8 *previous_target;
+ char *name;
+ u8 count;
+
+ /* First table entry must contain the table length (# of table entries) */
+
+ count = table->offset;
+
+ while (count) {
+ previous_target = target;
+ target = ACPI_ADD_PTR(u8, resource, table->offset);
+ name = table->name;
+
+ switch (table->opcode) {
+ case ACPI_RSD_TITLE:
+ /*
+ * Optional resource title
+ */
+ if (table->name) {
+ acpi_os_printf("%s Resource\n", name);
+ }
+ break;
+
+ /* Strings */
+
+ case ACPI_RSD_LITERAL:
+ acpi_rs_out_string(name,
+ ACPI_CAST_PTR(char, table->pointer));
+ break;
+
+ case ACPI_RSD_STRING:
+ acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
+ break;
+
+ /* Data items, 8/16/32/64 bit */
+
+ case ACPI_RSD_UINT8:
+ acpi_rs_out_integer8(name, ACPI_GET8(target));
+ break;
+
+ case ACPI_RSD_UINT16:
+ acpi_rs_out_integer16(name, ACPI_GET16(target));
+ break;
+
+ case ACPI_RSD_UINT32:
+ acpi_rs_out_integer32(name, ACPI_GET32(target));
+ break;
+
+ case ACPI_RSD_UINT64:
+ acpi_rs_out_integer64(name, ACPI_GET64(target));
+ break;
+
+ /* Flags: 1-bit and 2-bit flags supported */
+
+ case ACPI_RSD_1BITFLAG:
+ acpi_rs_out_string(name, ACPI_CAST_PTR(char,
+ table->
+ pointer[*target &
+ 0x01]));
+ break;
+
+ case ACPI_RSD_2BITFLAG:
+ acpi_rs_out_string(name, ACPI_CAST_PTR(char,
+ table->
+ pointer[*target &
+ 0x03]));
+ break;
+
+ case ACPI_RSD_SHORTLIST:
+ /*
+ * Short byte list (single line output) for DMA and IRQ resources
+ * Note: The list length is obtained from the previous table entry
+ */
+ if (previous_target) {
+ acpi_rs_out_title(name);
+ acpi_rs_dump_short_byte_list(*previous_target,
+ target);
+ }
+ break;
+
+ case ACPI_RSD_LONGLIST:
+ /*
+ * Long byte list for Vendor resource data
+ * Note: The list length is obtained from the previous table entry
+ */
+ if (previous_target) {
+ acpi_rs_dump_byte_list(ACPI_GET16
+ (previous_target),
+ target);
+ }
+ break;
+
+ case ACPI_RSD_DWORDLIST:
+ /*
+ * Dword list for Extended Interrupt resources
+ * Note: The list length is obtained from the previous table entry
+ */
+ if (previous_target) {
+ acpi_rs_dump_dword_list(*previous_target,
+ ACPI_CAST_PTR(u32,
+ target));
+ }
+ break;
+
+ case ACPI_RSD_ADDRESS:
+ /*
+ * Common flags for all Address resources
+ */
+ acpi_rs_dump_address_common(ACPI_CAST_PTR
+ (union acpi_resource_data,
+ target));
+ break;
+
+ case ACPI_RSD_SOURCE:
+ /*
+ * Optional resource_source for Address resources
+ */
+ acpi_rs_dump_resource_source(ACPI_CAST_PTR(struct
+ acpi_resource_source,
+ target));
+ break;
+
+ default:
+ acpi_os_printf("**** Invalid table opcode [%X] ****\n",
+ table->opcode);
+ return;
+ }
+
+ table++;
+ count--;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_dump_resource_source
+ *
+ * PARAMETERS: resource_source - Pointer to a Resource Source struct
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Common routine for dumping the optional resource_source and the
+ * corresponding resource_source_index.
+ *
+ ******************************************************************************/
+
+static void
+acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ if (resource_source->index == 0xFF) {
+ return;
+ }
+
+ acpi_rs_out_integer8("Resource Source Index", resource_source->index);
+
+ acpi_rs_out_string("Resource Source",
+ resource_source->string_ptr ?
+ resource_source->string_ptr : "[Not Specified]");
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_dump_address_common
+ *
+ * PARAMETERS: Resource - Pointer to an internal resource descriptor
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump the fields that are common to all Address resource
+ * descriptors
+ *
+ ******************************************************************************/
+
+static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Decode the type-specific flags */
+
+ switch (resource->address.resource_type) {
+ case ACPI_MEMORY_RANGE:
+
+ acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
+ break;
+
+ case ACPI_IO_RANGE:
+
+ acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
+ break;
+
+ case ACPI_BUS_NUMBER_RANGE:
+
+ acpi_rs_out_string("Resource Type", "Bus Number Range");
+ break;
+
+ default:
+
+ acpi_rs_out_integer8("Resource Type",
+ (u8) resource->address.resource_type);
+ break;
+ }
+
+ /* Decode the general flags */
+
+ acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_dump_resource_list
+ *
+ * PARAMETERS: resource_list - Pointer to a resource descriptor list
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dispatches the structure to the correct dump routine.
+ *
+ ******************************************************************************/
+
+void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
+{
+ u32 count = 0;
+ u32 type;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!(acpi_dbg_level & ACPI_LV_RESOURCES)
+ || !(_COMPONENT & acpi_dbg_layer)) {
+ return;
+ }
+
+ /* Walk list and dump all resource descriptors (END_TAG terminates) */
+
+ do {
+ acpi_os_printf("\n[%02X] ", count);
+ count++;
+
+ /* Validate Type before dispatch */
+
+ type = resource_list->type;
+ if (type > ACPI_RESOURCE_TYPE_MAX) {
+ acpi_os_printf
+ ("Invalid descriptor type (%X) in resource list\n",
+ resource_list->type);
+ return;
+ }
+
+ /* Dump the resource descriptor */
+
+ acpi_rs_dump_descriptor(&resource_list->data,
+ acpi_gbl_dump_resource_dispatch[type]);
+
+ /* Point to the next resource structure */
+
+ resource_list =
+ ACPI_ADD_PTR(struct acpi_resource, resource_list,
+ resource_list->length);
+
+ /* Exit when END_TAG descriptor is reached */
+
+ } while (type != ACPI_RESOURCE_TYPE_END_TAG);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_dump_irq_list
+ *
+ * PARAMETERS: route_table - Pointer to the routing table to dump.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print IRQ routing table
+ *
+ ******************************************************************************/
+
+void acpi_rs_dump_irq_list(u8 * route_table)
+{
+ struct acpi_pci_routing_table *prt_element;
+ u8 count;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!(acpi_dbg_level & ACPI_LV_RESOURCES)
+ || !(_COMPONENT & acpi_dbg_layer)) {
+ return;
+ }
+
+ prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
+
+ /* Dump all table elements, Exit on zero length element */
+
+ for (count = 0; prt_element->length; count++) {
+ acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
+ count);
+ acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
+
+ prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
+ prt_element, prt_element->length);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_out*
+ *
+ * PARAMETERS: Title - Name of the resource field
+ * Value - Value of the resource field
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Miscellaneous helper functions to consistently format the
+ * output of the resource dump routines
+ *
+ ******************************************************************************/
+
+static void acpi_rs_out_string(char *title, char *value)
+{
+ acpi_os_printf("%27s : %s", title, value);
+ if (!*value) {
+ acpi_os_printf("[NULL NAMESTRING]");
+ }
+ acpi_os_printf("\n");
+}
+
+static void acpi_rs_out_integer8(char *title, u8 value)
+{
+ acpi_os_printf("%27s : %2.2X\n", title, value);
+}
+
+static void acpi_rs_out_integer16(char *title, u16 value)
+{
+ acpi_os_printf("%27s : %4.4X\n", title, value);
+}
+
+static void acpi_rs_out_integer32(char *title, u32 value)
+{
+ acpi_os_printf("%27s : %8.8X\n", title, value);
+}
+
+static void acpi_rs_out_integer64(char *title, u64 value)
+{
+ acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
+}
+
+static void acpi_rs_out_title(char *title)
+{
+ acpi_os_printf("%27s : ", title);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_dump*List
+ *
+ * PARAMETERS: Length - Number of elements in the list
+ * Data - Start of the list
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Miscellaneous functions to dump lists of raw data
+ *
+ ******************************************************************************/
+
+static void acpi_rs_dump_byte_list(u16 length, u8 * data)
+{
+ u8 i;
+
+ for (i = 0; i < length; i++) {
+ acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
+ }
+}
+
+static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
+{
+ u8 i;
+
+ for (i = 0; i < length; i++) {
+ acpi_os_printf("%X ", data[i]);
+ }
+ acpi_os_printf("\n");
+}
+
+static void acpi_rs_dump_dword_list(u8 length, u32 * data)
+{
+ u8 i;
+
+ for (i = 0; i < length; i++) {
+ acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
+ }
+}
+
+#endif
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsinfo - Dispatch and Info tables
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsinfo")
+
+/*
+ * Resource dispatch and information tables. Any new resource types (either
+ * Large or Small) must be reflected in each of these tables, so they are here
+ * in one place.
+ *
+ * The tables for Large descriptors are indexed by bits 6:0 of the AML
+ * descriptor type byte. The tables for Small descriptors are indexed by
+ * bits 6:3 of the descriptor byte. The tables for internal resource
+ * descriptors are indexed by the acpi_resource_type field.
+ */
+/* Dispatch table for resource-to-AML (Set Resource) conversion functions */
+struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
+ acpi_rs_set_irq, /* 0x00, ACPI_RESOURCE_TYPE_IRQ */
+ acpi_rs_convert_dma, /* 0x01, ACPI_RESOURCE_TYPE_DMA */
+ acpi_rs_set_start_dpf, /* 0x02, ACPI_RESOURCE_TYPE_START_DEPENDENT */
+ acpi_rs_convert_end_dpf, /* 0x03, ACPI_RESOURCE_TYPE_END_DEPENDENT */
+ acpi_rs_convert_io, /* 0x04, ACPI_RESOURCE_TYPE_IO */
+ acpi_rs_convert_fixed_io, /* 0x05, ACPI_RESOURCE_TYPE_FIXED_IO */
+ acpi_rs_set_vendor, /* 0x06, ACPI_RESOURCE_TYPE_VENDOR */
+ acpi_rs_convert_end_tag, /* 0x07, ACPI_RESOURCE_TYPE_END_TAG */
+ acpi_rs_convert_memory24, /* 0x08, ACPI_RESOURCE_TYPE_MEMORY24 */
+ acpi_rs_convert_memory32, /* 0x09, ACPI_RESOURCE_TYPE_MEMORY32 */
+ acpi_rs_convert_fixed_memory32, /* 0x0A, ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
+ acpi_rs_convert_address16, /* 0x0B, ACPI_RESOURCE_TYPE_ADDRESS16 */
+ acpi_rs_convert_address32, /* 0x0C, ACPI_RESOURCE_TYPE_ADDRESS32 */
+ acpi_rs_convert_address64, /* 0x0D, ACPI_RESOURCE_TYPE_ADDRESS64 */
+ acpi_rs_convert_ext_address64, /* 0x0E, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
+ acpi_rs_convert_ext_irq, /* 0x0F, ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
+ acpi_rs_convert_generic_reg /* 0x10, ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
+};
+
+/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
+
+struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
+ /* Small descriptors */
+
+ NULL, /* 0x00, Reserved */
+ NULL, /* 0x01, Reserved */
+ NULL, /* 0x02, Reserved */
+ NULL, /* 0x03, Reserved */
+ acpi_rs_get_irq, /* 0x04, ACPI_RESOURCE_NAME_IRQ */
+ acpi_rs_convert_dma, /* 0x05, ACPI_RESOURCE_NAME_DMA */
+ acpi_rs_get_start_dpf, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
+ acpi_rs_convert_end_dpf, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
+ acpi_rs_convert_io, /* 0x08, ACPI_RESOURCE_NAME_IO */
+ acpi_rs_convert_fixed_io, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO */
+ NULL, /* 0x0A, Reserved */
+ NULL, /* 0x0B, Reserved */
+ NULL, /* 0x0C, Reserved */
+ NULL, /* 0x0D, Reserved */
+ acpi_rs_get_vendor_small, /* 0x0E, ACPI_RESOURCE_NAME_VENDOR_SMALL */
+ acpi_rs_convert_end_tag, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG */
+
+ /* Large descriptors */
+
+ NULL, /* 0x00, Reserved */
+ acpi_rs_convert_memory24, /* 0x01, ACPI_RESOURCE_NAME_MEMORY24 */
+ acpi_rs_convert_generic_reg, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
+ NULL, /* 0x03, Reserved */
+ acpi_rs_get_vendor_large, /* 0x04, ACPI_RESOURCE_NAME_VENDOR_LARGE */
+ acpi_rs_convert_memory32, /* 0x05, ACPI_RESOURCE_NAME_MEMORY32 */
+ acpi_rs_convert_fixed_memory32, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY32 */
+ acpi_rs_convert_address32, /* 0x07, ACPI_RESOURCE_NAME_ADDRESS32 */
+ acpi_rs_convert_address16, /* 0x08, ACPI_RESOURCE_NAME_ADDRESS16 */
+ acpi_rs_convert_ext_irq, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_IRQ */
+ acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */
+ acpi_rs_convert_ext_address64 /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */
+};
+
+#ifdef ACPI_FUTURE_USAGE
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+
+/* Dispatch table for resource dump functions */
+
+struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
+ acpi_rs_dump_irq, /* ACPI_RESOURCE_TYPE_IRQ */
+ acpi_rs_dump_dma, /* ACPI_RESOURCE_TYPE_DMA */
+ acpi_rs_dump_start_dpf, /* ACPI_RESOURCE_TYPE_START_DEPENDENT */
+ acpi_rs_dump_end_dpf, /* ACPI_RESOURCE_TYPE_END_DEPENDENT */
+ acpi_rs_dump_io, /* ACPI_RESOURCE_TYPE_IO */
+ acpi_rs_dump_fixed_io, /* ACPI_RESOURCE_TYPE_FIXED_IO */
+ acpi_rs_dump_vendor, /* ACPI_RESOURCE_TYPE_VENDOR */
+ acpi_rs_dump_end_tag, /* ACPI_RESOURCE_TYPE_END_TAG */
+ acpi_rs_dump_memory24, /* ACPI_RESOURCE_TYPE_MEMORY24 */
+ acpi_rs_dump_memory32, /* ACPI_RESOURCE_TYPE_MEMORY32 */
+ acpi_rs_dump_fixed_memory32, /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
+ acpi_rs_dump_address16, /* ACPI_RESOURCE_TYPE_ADDRESS16 */
+ acpi_rs_dump_address32, /* ACPI_RESOURCE_TYPE_ADDRESS32 */
+ acpi_rs_dump_address64, /* ACPI_RESOURCE_TYPE_ADDRESS64 */
+ acpi_rs_dump_ext_address64, /* ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
+ acpi_rs_dump_ext_irq, /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
+ acpi_rs_dump_generic_reg, /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
+};
+#endif
+
+#endif /* ACPI_FUTURE_USAGE */
+/*
+ * Base sizes for external AML resource descriptors, indexed by internal type.
+ * Includes size of the descriptor header (1 byte for small descriptors,
+ * 3 bytes for large descriptors)
+ */
+const u8 acpi_gbl_aml_resource_sizes[] = {
+ sizeof(struct aml_resource_irq), /* ACPI_RESOURCE_TYPE_IRQ (optional Byte 3 always created) */
+ sizeof(struct aml_resource_dma), /* ACPI_RESOURCE_TYPE_DMA */
+ sizeof(struct aml_resource_start_dependent), /* ACPI_RESOURCE_TYPE_START_DEPENDENT (optional Byte 1 always created) */
+ sizeof(struct aml_resource_end_dependent), /* ACPI_RESOURCE_TYPE_END_DEPENDENT */
+ sizeof(struct aml_resource_io), /* ACPI_RESOURCE_TYPE_IO */
+ sizeof(struct aml_resource_fixed_io), /* ACPI_RESOURCE_TYPE_FIXED_IO */
+ sizeof(struct aml_resource_vendor_small), /* ACPI_RESOURCE_TYPE_VENDOR */
+ sizeof(struct aml_resource_end_tag), /* ACPI_RESOURCE_TYPE_END_TAG */
+ sizeof(struct aml_resource_memory24), /* ACPI_RESOURCE_TYPE_MEMORY24 */
+ sizeof(struct aml_resource_memory32), /* ACPI_RESOURCE_TYPE_MEMORY32 */
+ sizeof(struct aml_resource_fixed_memory32), /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
+ sizeof(struct aml_resource_address16), /* ACPI_RESOURCE_TYPE_ADDRESS16 */
+ sizeof(struct aml_resource_address32), /* ACPI_RESOURCE_TYPE_ADDRESS32 */
+ sizeof(struct aml_resource_address64), /* ACPI_RESOURCE_TYPE_ADDRESS64 */
+ sizeof(struct aml_resource_extended_address64), /*ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
+ sizeof(struct aml_resource_extended_irq), /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
+ sizeof(struct aml_resource_generic_register) /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
+};
+
+const u8 acpi_gbl_resource_struct_sizes[] = {
+ /* Small descriptors */
+
+ 0,
+ 0,
+ 0,
+ 0,
+ ACPI_RS_SIZE(struct acpi_resource_irq),
+ ACPI_RS_SIZE(struct acpi_resource_dma),
+ ACPI_RS_SIZE(struct acpi_resource_start_dependent),
+ ACPI_RS_SIZE_MIN,
+ ACPI_RS_SIZE(struct acpi_resource_io),
+ ACPI_RS_SIZE(struct acpi_resource_fixed_io),
+ 0,
+ 0,
+ 0,
+ 0,
+ ACPI_RS_SIZE(struct acpi_resource_vendor),
+ ACPI_RS_SIZE_MIN,
+
+ /* Large descriptors */
+
+ 0,
+ ACPI_RS_SIZE(struct acpi_resource_memory24),
+ ACPI_RS_SIZE(struct acpi_resource_generic_register),
+ 0,
+ ACPI_RS_SIZE(struct acpi_resource_vendor),
+ ACPI_RS_SIZE(struct acpi_resource_memory32),
+ ACPI_RS_SIZE(struct acpi_resource_fixed_memory32),
+ ACPI_RS_SIZE(struct acpi_resource_address32),
+ ACPI_RS_SIZE(struct acpi_resource_address16),
+ ACPI_RS_SIZE(struct acpi_resource_extended_irq),
+ ACPI_RS_SIZE(struct acpi_resource_address64),
+ ACPI_RS_SIZE(struct acpi_resource_extended_address64)
+};
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsio - IO and DMA resource descriptors
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsio")
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_io
+ *
+ ******************************************************************************/
+struct acpi_rsconvert_info acpi_rs_convert_io[5] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO,
+ ACPI_RS_SIZE(struct acpi_resource_io),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO,
+ sizeof(struct aml_resource_io),
+ 0},
+
+ /* Decode flag */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode),
+ AML_OFFSET(io.flags),
+ 0},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Address Alignment
+ * Length
+ * Minimum Base Address
+ * Maximum Base Address
+ */
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment),
+ AML_OFFSET(io.alignment),
+ 2},
+
+ {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum),
+ AML_OFFSET(io.minimum),
+ 2}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_fixed_io
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO,
+ ACPI_RS_SIZE(struct acpi_resource_fixed_io),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO,
+ sizeof(struct aml_resource_fixed_io),
+ 0},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Base Address
+ * Length
+ */
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length),
+ AML_OFFSET(fixed_io.address_length),
+ 1},
+
+ {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address),
+ AML_OFFSET(fixed_io.address),
+ 1}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_generic_reg
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
+ ACPI_RS_SIZE(struct acpi_resource_generic_register),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER,
+ sizeof(struct aml_resource_generic_register),
+ 0},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Address Space ID
+ * Register Bit Width
+ * Register Bit Offset
+ * Access Size
+ */
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id),
+ AML_OFFSET(generic_reg.address_space_id),
+ 4},
+
+ /* Get the Register Address */
+
+ {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address),
+ AML_OFFSET(generic_reg.address),
+ 1}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_end_dpf
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT,
+ ACPI_RS_SIZE_MIN,
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT,
+ sizeof(struct aml_resource_end_dependent),
+ 0}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_end_tag
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG,
+ ACPI_RS_SIZE_MIN,
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)},
+
+ /*
+ * Note: The checksum field is set to zero, meaning that the resource
+ * data is treated as if the checksum operation succeeded.
+ * (ACPI Spec 1.0b Section 6.4.2.8)
+ */
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG,
+ sizeof(struct aml_resource_end_tag),
+ 0}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_get_start_dpf
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT,
+ ACPI_RS_SIZE(struct acpi_resource_start_dependent),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)},
+
+ /* Defaults for Compatibility and Performance priorities */
+
+ {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+ ACPI_ACCEPTABLE_CONFIGURATION,
+ 2},
+
+ /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
+ AML_OFFSET(start_dpf.descriptor_type),
+ 0},
+
+ /* All done if there is no flag byte present in the descriptor */
+
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
+
+ /* Flag byte is present, get the flags */
+
+ {ACPI_RSC_2BITFLAG,
+ ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+ AML_OFFSET(start_dpf.flags),
+ 0},
+
+ {ACPI_RSC_2BITFLAG,
+ ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
+ AML_OFFSET(start_dpf.flags),
+ 2}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_set_start_dpf
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = {
+ /* Start with a default descriptor of length 1 */
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT,
+ sizeof(struct aml_resource_start_dependent),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)},
+
+ /* Set the default flag values */
+
+ {ACPI_RSC_2BITFLAG,
+ ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+ AML_OFFSET(start_dpf.flags),
+ 0},
+
+ {ACPI_RSC_2BITFLAG,
+ ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
+ AML_OFFSET(start_dpf.flags),
+ 2},
+ /*
+ * All done if the output descriptor length is required to be 1
+ * (i.e., optimization to 0 bytes cannot be attempted)
+ */
+ {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
+ 1},
+
+ /* Set length to 0 bytes (no flags byte) */
+
+ {ACPI_RSC_LENGTH, 0, 0,
+ sizeof(struct aml_resource_start_dependent_noprio)},
+
+ /*
+ * All done if the output descriptor length is required to be 0.
+ *
+ * TBD: Perhaps we should check for error if input flags are not
+ * compatible with a 0-byte descriptor.
+ */
+ {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
+ 0},
+
+ /* Reset length to 1 byte (descriptor with flags byte) */
+
+ {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)},
+
+ /*
+ * All done if flags byte is necessary -- if either priority value
+ * is not ACPI_ACCEPTABLE_CONFIGURATION
+ */
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
+ ACPI_ACCEPTABLE_CONFIGURATION},
+
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
+ ACPI_ACCEPTABLE_CONFIGURATION},
+
+ /* Flag byte is not necessary */
+
+ {ACPI_RSC_LENGTH, 0, 0,
+ sizeof(struct aml_resource_start_dependent_noprio)}
+};
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsirq - IRQ resource descriptors
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsirq")
+
+/*******************************************************************************
+ *
+ * acpi_rs_get_irq
+ *
+ ******************************************************************************/
+struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
+ ACPI_RS_SIZE(struct acpi_resource_irq),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
+
+ /* Get the IRQ mask (bytes 1:2) */
+
+ {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
+ AML_OFFSET(irq.irq_mask),
+ ACPI_RS_OFFSET(data.irq.interrupt_count)},
+
+ /* Set default flags (others are zero) */
+
+ {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
+ ACPI_EDGE_SENSITIVE,
+ 1},
+
+ /* Get the descriptor length (2 or 3 for IRQ descriptor) */
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
+ AML_OFFSET(irq.descriptor_type),
+ 0},
+
+ /* All done if no flag byte present in descriptor */
+
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
+
+ /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
+ AML_OFFSET(irq.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
+ AML_OFFSET(irq.flags),
+ 3},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+ AML_OFFSET(irq.flags),
+ 4}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_set_irq
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
+ /* Start with a default descriptor of length 3 */
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
+ sizeof(struct aml_resource_irq),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
+
+ /* Convert interrupt list to 16-bit IRQ bitmask */
+
+ {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
+ AML_OFFSET(irq.irq_mask),
+ ACPI_RS_OFFSET(data.irq.interrupt_count)},
+
+ /* Set the flags byte */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
+ AML_OFFSET(irq.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
+ AML_OFFSET(irq.flags),
+ 3},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
+ AML_OFFSET(irq.flags),
+ 4},
+
+ /*
+ * All done if the output descriptor length is required to be 3
+ * (i.e., optimization to 2 bytes cannot be attempted)
+ */
+ {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.descriptor_length),
+ 3},
+
+ /* Set length to 2 bytes (no flags byte) */
+
+ {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
+
+ /*
+ * All done if the output descriptor length is required to be 2.
+ *
+ * TBD: Perhaps we should check for error if input flags are not
+ * compatible with a 2-byte descriptor.
+ */
+ {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.descriptor_length),
+ 2},
+
+ /* Reset length to 3 bytes (descriptor with flags byte) */
+
+ {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
+
+ /*
+ * Check if the flags byte is necessary. Not needed if the flags are:
+ * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
+ */
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.triggering),
+ ACPI_EDGE_SENSITIVE},
+
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.polarity),
+ ACPI_ACTIVE_HIGH},
+
+ {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
+ ACPI_RS_OFFSET(data.irq.sharable),
+ ACPI_EXCLUSIVE},
+
+ /* We can optimize to a 2-byte irq_no_flags() descriptor */
+
+ {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_ext_irq
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
+ ACPI_RS_SIZE(struct acpi_resource_extended_irq),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
+ sizeof(struct aml_resource_extended_irq),
+ 0},
+
+ /* Flag bits */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
+ AML_OFFSET(extended_irq.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
+ AML_OFFSET(extended_irq.flags),
+ 1},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
+ AML_OFFSET(extended_irq.flags),
+ 2},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
+ AML_OFFSET(extended_irq.flags),
+ 3},
+
+ /* IRQ Table length (Byte4) */
+
+ {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
+ AML_OFFSET(extended_irq.interrupt_count),
+ sizeof(u32)}
+ ,
+
+ /* Copy every IRQ in the table, each is 32 bits */
+
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
+ AML_OFFSET(extended_irq.interrupts[0]),
+ 0}
+ ,
+
+ /* Optional resource_source (Index and String) */
+
+ {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
+ ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
+ sizeof(struct aml_resource_extended_irq)}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_dma
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
+ ACPI_RS_SIZE(struct acpi_resource_dma),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
+ sizeof(struct aml_resource_dma),
+ 0},
+
+ /* Flags: transfer preference, bus mastering, channel speed */
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
+ AML_OFFSET(dma.flags),
+ 0},
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
+ AML_OFFSET(dma.flags),
+ 2},
+
+ {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
+ AML_OFFSET(dma.flags),
+ 5},
+
+ /* DMA channel mask bits */
+
+ {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
+ AML_OFFSET(dma.dma_channel_mask),
+ ACPI_RS_OFFSET(data.dma.channel_count)}
+};
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rslist - Linked list utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rslist")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_convert_aml_to_resources
+ *
+ * PARAMETERS: acpi_walk_aml_callback
+ * resource_ptr - Pointer to the buffer that will
+ * contain the output structures
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an AML resource to an internal representation of the
+ * resource that is aligned and easier to access.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_rs_convert_aml_to_resources(u8 * aml,
+ u32 length,
+ u32 offset, u8 resource_index, void **context)
+{
+ struct acpi_resource **resource_ptr =
+ ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context);
+ struct acpi_resource *resource;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources);
+
+ /*
+ * Check that the input buffer and all subsequent pointers into it
+ * are aligned on a native word boundary. Most important on IA64
+ */
+ resource = *resource_ptr;
+ if (ACPI_IS_MISALIGNED(resource)) {
+ ACPI_WARNING((AE_INFO,
+ "Misaligned resource pointer %p", resource));
+ }
+
+ /* Convert the AML byte stream resource to a local resource struct */
+
+ status =
+ acpi_rs_convert_aml_to_resource(resource,
+ ACPI_CAST_PTR(union aml_resource,
+ aml),
+ acpi_gbl_get_resource_dispatch
+ [resource_index]);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not convert AML resource (Type %X)",
+ *aml));
+ return_ACPI_STATUS(status);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
+ "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
+ acpi_ut_get_resource_type(aml), length,
+ resource->length));
+
+ /* Point to the next structure in the output buffer */
+
+ *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length);
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_convert_resources_to_aml
+ *
+ * PARAMETERS: Resource - Pointer to the resource linked list
+ * aml_size_needed - Calculated size of the byte stream
+ * needed from calling acpi_rs_get_aml_length()
+ * The size of the output_buffer is
+ * guaranteed to be >= aml_size_needed
+ * output_buffer - Pointer to the buffer that will
+ * contain the byte stream
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Takes the resource linked list and parses it, creating a
+ * byte stream of resources in the caller's output buffer
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
+ acpi_size aml_size_needed, u8 * output_buffer)
+{
+ u8 *aml = output_buffer;
+ u8 *end_aml = output_buffer + aml_size_needed;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml);
+
+ /* Walk the resource descriptor list, convert each descriptor */
+
+ while (aml < end_aml) {
+
+ /* Validate the (internal) Resource Type */
+
+ if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
+ ACPI_ERROR((AE_INFO,
+ "Invalid descriptor type (%X) in resource list",
+ resource->type));
+ return_ACPI_STATUS(AE_BAD_DATA);
+ }
+
+ /* Perform the conversion */
+
+ status = acpi_rs_convert_resource_to_aml(resource, ACPI_CAST_PTR(union
+ aml_resource,
+ aml),
+ acpi_gbl_set_resource_dispatch
+ [resource->type]);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not convert resource (type %X) to AML",
+ resource->type));
+ return_ACPI_STATUS(status);
+ }
+
+ /* Perform final sanity check on the new AML resource descriptor */
+
+ status =
+ acpi_ut_validate_resource(ACPI_CAST_PTR
+ (union aml_resource, aml), NULL);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Check for end-of-list, normal exit */
+
+ if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
+
+ /* An End Tag indicates the end of the input Resource Template */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Extract the total length of the new descriptor and set the
+ * Aml to point to the next (output) resource descriptor
+ */
+ aml += acpi_ut_get_descriptor_length(aml);
+
+ /* Point to the next input resource descriptor */
+
+ resource =
+ ACPI_ADD_PTR(struct acpi_resource, resource,
+ resource->length);
+ }
+
+ /* Completed buffer, but did not find an end_tag resource descriptor */
+
+ return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsmem24 - Memory resource descriptors
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsmemory")
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_memory24
+ *
+ ******************************************************************************/
+struct acpi_rsconvert_info acpi_rs_convert_memory24[4] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY24,
+ ACPI_RS_SIZE(struct acpi_resource_memory24),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory24)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY24,
+ sizeof(struct aml_resource_memory24),
+ 0},
+
+ /* Read/Write bit */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory24.write_protect),
+ AML_OFFSET(memory24.flags),
+ 0},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Minimum Base Address
+ * Maximum Base Address
+ * Address Base Alignment
+ * Range Length
+ */
+ {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.memory24.minimum),
+ AML_OFFSET(memory24.minimum),
+ 4}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_memory32
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_memory32[4] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY32,
+ ACPI_RS_SIZE(struct acpi_resource_memory32),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory32)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY32,
+ sizeof(struct aml_resource_memory32),
+ 0},
+
+ /* Read/Write bit */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory32.write_protect),
+ AML_OFFSET(memory32.flags),
+ 0},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Minimum Base Address
+ * Maximum Base Address
+ * Address Base Alignment
+ * Range Length
+ */
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.memory32.minimum),
+ AML_OFFSET(memory32.minimum),
+ 4}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_convert_fixed_memory32
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[4] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_MEMORY32,
+ ACPI_RS_SIZE(struct acpi_resource_fixed_memory32),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_memory32)},
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_MEMORY32,
+ sizeof(struct aml_resource_fixed_memory32),
+ 0},
+
+ /* Read/Write bit */
+
+ {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.fixed_memory32.write_protect),
+ AML_OFFSET(fixed_memory32.flags),
+ 0},
+ /*
+ * These fields are contiguous in both the source and destination:
+ * Base Address
+ * Range Length
+ */
+ {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.fixed_memory32.address),
+ AML_OFFSET(fixed_memory32.address),
+ 2}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_get_vendor_small
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
+ ACPI_RS_SIZE(struct acpi_resource_vendor),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_small)},
+
+ /* Length of the vendor data (byte count) */
+
+ {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
+ 0,
+ sizeof(u8)}
+ ,
+
+ /* Vendor data */
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
+ sizeof(struct aml_resource_small_header),
+ 0}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_get_vendor_large
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = {
+ {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
+ ACPI_RS_SIZE(struct acpi_resource_vendor),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_large)},
+
+ /* Length of the vendor data (byte count) */
+
+ {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
+ 0,
+ sizeof(u8)}
+ ,
+
+ /* Vendor data */
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
+ sizeof(struct aml_resource_large_header),
+ 0}
+};
+
+/*******************************************************************************
+ *
+ * acpi_rs_set_vendor
+ *
+ ******************************************************************************/
+
+struct acpi_rsconvert_info acpi_rs_set_vendor[7] = {
+ /* Default is a small vendor descriptor */
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_SMALL,
+ sizeof(struct aml_resource_small_header),
+ ACPI_RSC_TABLE_SIZE(acpi_rs_set_vendor)},
+
+ /* Get the length and copy the data */
+
+ {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
+ 0,
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
+ sizeof(struct aml_resource_small_header),
+ 0},
+
+ /*
+ * All done if the Vendor byte length is 7 or less, meaning that it will
+ * fit within a small descriptor
+ */
+ {ACPI_RSC_EXIT_LE, 0, 0, 7},
+
+ /* Must create a large vendor descriptor */
+
+ {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_LARGE,
+ sizeof(struct aml_resource_large_header),
+ 0},
+
+ {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
+ 0,
+ 0},
+
+ {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
+ sizeof(struct aml_resource_large_header),
+ 0}
+};
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsmisc - Miscellaneous resource descriptors
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsmisc")
+#define INIT_RESOURCE_TYPE(i) i->resource_offset
+#define INIT_RESOURCE_LENGTH(i) i->aml_offset
+#define INIT_TABLE_LENGTH(i) i->value
+#define COMPARE_OPCODE(i) i->resource_offset
+#define COMPARE_TARGET(i) i->aml_offset
+#define COMPARE_VALUE(i) i->value
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_convert_aml_to_resource
+ *
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
+ * Info - Pointer to appropriate conversion table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
+ * internal resource descriptor
+ *
+ ******************************************************************************/
+acpi_status
+acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
+ union aml_resource *aml,
+ struct acpi_rsconvert_info *info)
+{
+ acpi_rs_length aml_resource_length;
+ void *source;
+ void *destination;
+ char *target;
+ u8 count;
+ u8 flags_mode = FALSE;
+ u16 item_count = 0;
+ u16 temp16 = 0;
+
+ ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
+
+ if (((acpi_size) resource) & 0x3) {
+
+ /* Each internal resource struct is expected to be 32-bit aligned */
+
+ ACPI_WARNING((AE_INFO,
+ "Misaligned resource pointer (get): %p Type %2.2X Len %X",
+ resource, resource->type, resource->length));
+ }
+
+ /* Extract the resource Length field (does not include header length) */
+
+ aml_resource_length = acpi_ut_get_resource_length(aml);
+
+ /*
+ * First table entry must be ACPI_RSC_INITxxx and must contain the
+ * table length (# of table entries)
+ */
+ count = INIT_TABLE_LENGTH(info);
+
+ while (count) {
+ /*
+ * Source is the external AML byte stream buffer,
+ * destination is the internal resource descriptor
+ */
+ source = ACPI_ADD_PTR(void, aml, info->aml_offset);
+ destination =
+ ACPI_ADD_PTR(void, resource, info->resource_offset);
+
+ switch (info->opcode) {
+ case ACPI_RSC_INITGET:
+ /*
+ * Get the resource type and the initial (minimum) length
+ */
+ ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
+ resource->type = INIT_RESOURCE_TYPE(info);
+ resource->length = INIT_RESOURCE_LENGTH(info);
+ break;
+
+ case ACPI_RSC_INITSET:
+ break;
+
+ case ACPI_RSC_FLAGINIT:
+
+ flags_mode = TRUE;
+ break;
+
+ case ACPI_RSC_1BITFLAG:
+ /*
+ * Mask and shift the flag bit
+ */
+ ACPI_SET8(destination) = (u8)
+ ((ACPI_GET8(source) >> info->value) & 0x01);
+ break;
+
+ case ACPI_RSC_2BITFLAG:
+ /*
+ * Mask and shift the flag bits
+ */
+ ACPI_SET8(destination) = (u8)
+ ((ACPI_GET8(source) >> info->value) & 0x03);
+ break;
+
+ case ACPI_RSC_COUNT:
+
+ item_count = ACPI_GET8(source);
+ ACPI_SET8(destination) = (u8) item_count;
+
+ resource->length = resource->length +
+ (info->value * (item_count - 1));
+ break;
+
+ case ACPI_RSC_COUNT16:
+
+ item_count = aml_resource_length;
+ ACPI_SET16(destination) = item_count;
+
+ resource->length = resource->length +
+ (info->value * (item_count - 1));
+ break;
+
+ case ACPI_RSC_LENGTH:
+
+ resource->length = resource->length + info->value;
+ break;
+
+ case ACPI_RSC_MOVE8:
+ case ACPI_RSC_MOVE16:
+ case ACPI_RSC_MOVE32:
+ case ACPI_RSC_MOVE64:
+ /*
+ * Raw data move. Use the Info value field unless item_count has
+ * been previously initialized via a COUNT opcode
+ */
+ if (info->value) {
+ item_count = info->value;
+ }
+ acpi_rs_move_data(destination, source, item_count,
+ info->opcode);
+ break;
+
+ case ACPI_RSC_SET8:
+
+ ACPI_MEMSET(destination, info->aml_offset, info->value);
+ break;
+
+ case ACPI_RSC_DATA8:
+
+ target = ACPI_ADD_PTR(char, resource, info->value);
+ ACPI_MEMCPY(destination, source, ACPI_GET16(target));
+ break;
+
+ case ACPI_RSC_ADDRESS:
+ /*
+ * Common handler for address descriptor flags
+ */
+ if (!acpi_rs_get_address_common(resource, aml)) {
+ return_ACPI_STATUS
+ (AE_AML_INVALID_RESOURCE_TYPE);
+ }
+ break;
+
+ case ACPI_RSC_SOURCE:
+ /*
+ * Optional resource_source (Index and String)
+ */
+ resource->length +=
+ acpi_rs_get_resource_source(aml_resource_length,
+ info->value,
+ destination, aml, NULL);
+ break;
+
+ case ACPI_RSC_SOURCEX:
+ /*
+ * Optional resource_source (Index and String). This is the more
+ * complicated case used by the Interrupt() macro
+ */
+ target =
+ ACPI_ADD_PTR(char, resource,
+ info->aml_offset + (item_count * 4));
+
+ resource->length +=
+ acpi_rs_get_resource_source(aml_resource_length,
+ (acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
+ break;
+
+ case ACPI_RSC_BITMASK:
+ /*
+ * 8-bit encoded bitmask (DMA macro)
+ */
+ item_count =
+ acpi_rs_decode_bitmask(ACPI_GET8(source),
+ destination);
+ if (item_count) {
+ resource->length += (item_count - 1);
+ }
+
+ target = ACPI_ADD_PTR(char, resource, info->value);
+ ACPI_SET8(target) = (u8) item_count;
+ break;
+
+ case ACPI_RSC_BITMASK16:
+ /*
+ * 16-bit encoded bitmask (IRQ macro)
+ */
+ ACPI_MOVE_16_TO_16(&temp16, source);
+
+ item_count =
+ acpi_rs_decode_bitmask(temp16, destination);
+ if (item_count) {
+ resource->length += (item_count - 1);
+ }
+
+ target = ACPI_ADD_PTR(char, resource, info->value);
+ ACPI_SET8(target) = (u8) item_count;
+ break;
+
+ case ACPI_RSC_EXIT_NE:
+ /*
+ * Control - Exit conversion if not equal
+ */
+ switch (info->resource_offset) {
+ case ACPI_RSC_COMPARE_AML_LENGTH:
+ if (aml_resource_length != info->value) {
+ goto exit;
+ }
+ break;
+
+ case ACPI_RSC_COMPARE_VALUE:
+ if (ACPI_GET8(source) != info->value) {
+ goto exit;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid conversion sub-opcode"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ count--;
+ info++;
+ }
+
+ exit:
+ if (!flags_mode) {
+
+ /* Round the resource struct length up to the next boundary (32 or 64) */
+
+ resource->length =
+ (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
+ }
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_convert_resource_to_aml
+ *
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
+ * Info - Pointer to appropriate conversion table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
+ union aml_resource *aml,
+ struct acpi_rsconvert_info *info)
+{
+ void *source = NULL;
+ void *destination;
+ acpi_rsdesc_size aml_length = 0;
+ u8 count;
+ u16 temp16 = 0;
+ u16 item_count = 0;
+
+ ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
+
+ /*
+ * First table entry must be ACPI_RSC_INITxxx and must contain the
+ * table length (# of table entries)
+ */
+ count = INIT_TABLE_LENGTH(info);
+
+ while (count) {
+ /*
+ * Source is the internal resource descriptor,
+ * destination is the external AML byte stream buffer
+ */
+ source = ACPI_ADD_PTR(void, resource, info->resource_offset);
+ destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
+
+ switch (info->opcode) {
+ case ACPI_RSC_INITSET:
+
+ ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
+ aml_length = INIT_RESOURCE_LENGTH(info);
+ acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
+ aml_length, aml);
+ break;
+
+ case ACPI_RSC_INITGET:
+ break;
+
+ case ACPI_RSC_FLAGINIT:
+ /*
+ * Clear the flag byte
+ */
+ ACPI_SET8(destination) = 0;
+ break;
+
+ case ACPI_RSC_1BITFLAG:
+ /*
+ * Mask and shift the flag bit
+ */
+ ACPI_SET8(destination) |= (u8)
+ ((ACPI_GET8(source) & 0x01) << info->value);
+ break;
+
+ case ACPI_RSC_2BITFLAG:
+ /*
+ * Mask and shift the flag bits
+ */
+ ACPI_SET8(destination) |= (u8)
+ ((ACPI_GET8(source) & 0x03) << info->value);
+ break;
+
+ case ACPI_RSC_COUNT:
+
+ item_count = ACPI_GET8(source);
+ ACPI_SET8(destination) = (u8) item_count;
+
+ aml_length =
+ (u16) (aml_length +
+ (info->value * (item_count - 1)));
+ break;
+
+ case ACPI_RSC_COUNT16:
+
+ item_count = ACPI_GET16(source);
+ aml_length = (u16) (aml_length + item_count);
+ acpi_rs_set_resource_length(aml_length, aml);
+ break;
+
+ case ACPI_RSC_LENGTH:
+
+ acpi_rs_set_resource_length(info->value, aml);
+ break;
+
+ case ACPI_RSC_MOVE8:
+ case ACPI_RSC_MOVE16:
+ case ACPI_RSC_MOVE32:
+ case ACPI_RSC_MOVE64:
+
+ if (info->value) {
+ item_count = info->value;
+ }
+ acpi_rs_move_data(destination, source, item_count,
+ info->opcode);
+ break;
+
+ case ACPI_RSC_ADDRESS:
+
+ /* Set the Resource Type, General Flags, and Type-Specific Flags */
+
+ acpi_rs_set_address_common(aml, resource);
+ break;
+
+ case ACPI_RSC_SOURCEX:
+ /*
+ * Optional resource_source (Index and String)
+ */
+ aml_length =
+ acpi_rs_set_resource_source(aml, (acpi_rs_length)
+ aml_length, source);
+ acpi_rs_set_resource_length(aml_length, aml);
+ break;
+
+ case ACPI_RSC_SOURCE:
+ /*
+ * Optional resource_source (Index and String). This is the more
+ * complicated case used by the Interrupt() macro
+ */
+ aml_length =
+ acpi_rs_set_resource_source(aml, info->value,
+ source);
+ acpi_rs_set_resource_length(aml_length, aml);
+ break;
+
+ case ACPI_RSC_BITMASK:
+ /*
+ * 8-bit encoded bitmask (DMA macro)
+ */
+ ACPI_SET8(destination) = (u8)
+ acpi_rs_encode_bitmask(source,
+ *ACPI_ADD_PTR(u8, resource,
+ info->value));
+ break;
+
+ case ACPI_RSC_BITMASK16:
+ /*
+ * 16-bit encoded bitmask (IRQ macro)
+ */
+ temp16 = acpi_rs_encode_bitmask(source,
+ *ACPI_ADD_PTR(u8,
+ resource,
+ info->
+ value));
+ ACPI_MOVE_16_TO_16(destination, &temp16);
+ break;
+
+ case ACPI_RSC_EXIT_LE:
+ /*
+ * Control - Exit conversion if less than or equal
+ */
+ if (item_count <= info->value) {
+ goto exit;
+ }
+ break;
+
+ case ACPI_RSC_EXIT_NE:
+ /*
+ * Control - Exit conversion if not equal
+ */
+ switch (COMPARE_OPCODE(info)) {
+ case ACPI_RSC_COMPARE_VALUE:
+
+ if (*ACPI_ADD_PTR(u8, resource,
+ COMPARE_TARGET(info)) !=
+ COMPARE_VALUE(info)) {
+ goto exit;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid conversion sub-opcode"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+ break;
+
+ case ACPI_RSC_EXIT_EQ:
+ /*
+ * Control - Exit conversion if equal
+ */
+ if (*ACPI_ADD_PTR(u8, resource,
+ COMPARE_TARGET(info)) ==
+ COMPARE_VALUE(info)) {
+ goto exit;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ count--;
+ info++;
+ }
+
+ exit:
+ return_ACPI_STATUS(AE_OK);
+}
+
+#if 0
+/* Previous resource validations */
+
+if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
+ return_ACPI_STATUS(AE_SUPPORT);
+}
+
+if (resource->data.start_dpf.performance_robustness >= 3) {
+ return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
+}
+
+if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
+ /*
+ * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
+ * polarity/trigger interrupts are allowed (ACPI spec, section
+ * "IRQ Format"), so 0x00 and 0x09 are illegal.
+ */
+ ACPI_ERROR((AE_INFO,
+ "Invalid interrupt polarity/trigger in resource list, %X",
+ aml->irq.flags));
+ return_ACPI_STATUS(AE_BAD_DATA);
+}
+
+resource->data.extended_irq.interrupt_count = temp8;
+if (temp8 < 1) {
+
+ /* Must have at least one IRQ */
+
+ return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
+}
+
+if (resource->data.dma.transfer == 0x03) {
+ ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
+ return_ACPI_STATUS(AE_BAD_DATA);
+}
+#endif
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsutils - Utilities for the resource manager
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acresrc.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsutils")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_decode_bitmask
+ *
+ * PARAMETERS: Mask - Bitmask to decode
+ * List - Where the converted list is returned
+ *
+ * RETURN: Count of bits set (length of list)
+ *
+ * DESCRIPTION: Convert a bit mask into a list of values
+ *
+ ******************************************************************************/
+u8 acpi_rs_decode_bitmask(u16 mask, u8 * list)
+{
+ u8 i;
+ u8 bit_count;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Decode the mask bits */
+
+ for (i = 0, bit_count = 0; mask; i++) {
+ if (mask & 0x0001) {
+ list[bit_count] = i;
+ bit_count++;
+ }
+
+ mask >>= 1;
+ }
+
+ return (bit_count);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_encode_bitmask
+ *
+ * PARAMETERS: List - List of values to encode
+ * Count - Length of list
+ *
+ * RETURN: Encoded bitmask
+ *
+ * DESCRIPTION: Convert a list of values to an encoded bitmask
+ *
+ ******************************************************************************/
+
+u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
+{
+ u32 i;
+ u16 mask;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Encode the list into a single bitmask */
+
+ for (i = 0, mask = 0; i < count; i++) {
+ mask |= (0x1 << list[i]);
+ }
+
+ return mask;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_move_data
+ *
+ * PARAMETERS: Destination - Pointer to the destination descriptor
+ * Source - Pointer to the source descriptor
+ * item_count - How many items to move
+ * move_type - Byte width
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Move multiple data items from one descriptor to another. Handles
+ * alignment issues and endian issues if necessary, as configured
+ * via the ACPI_MOVE_* macros. (This is why a memcpy is not used)
+ *
+ ******************************************************************************/
+
+void
+acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type)
+{
+ u32 i;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* One move per item */
+
+ for (i = 0; i < item_count; i++) {
+ switch (move_type) {
+ /*
+ * For the 8-bit case, we can perform the move all at once
+ * since there are no alignment or endian issues
+ */
+ case ACPI_RSC_MOVE8:
+ ACPI_MEMCPY(destination, source, item_count);
+ return;
+
+ /*
+ * 16-, 32-, and 64-bit cases must use the move macros that perform
+ * endian conversion and/or accomodate hardware that cannot perform
+ * misaligned memory transfers
+ */
+ case ACPI_RSC_MOVE16:
+ ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i],
+ &ACPI_CAST_PTR(u16, source)[i]);
+ break;
+
+ case ACPI_RSC_MOVE32:
+ ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i],
+ &ACPI_CAST_PTR(u32, source)[i]);
+ break;
+
+ case ACPI_RSC_MOVE64:
+ ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i],
+ &ACPI_CAST_PTR(u64, source)[i]);
+ break;
+
+ default:
+ return;
+ }
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_set_resource_length
+ *
+ * PARAMETERS: total_length - Length of the AML descriptor, including
+ * the header and length fields.
+ * Aml - Pointer to the raw AML descriptor
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Set the resource_length field of an AML
+ * resource descriptor, both Large and Small descriptors are
+ * supported automatically. Note: Descriptor Type field must
+ * be valid.
+ *
+ ******************************************************************************/
+
+void
+acpi_rs_set_resource_length(acpi_rsdesc_size total_length,
+ union aml_resource *aml)
+{
+ acpi_rs_length resource_length;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Length is the total descriptor length minus the header length */
+
+ resource_length = (acpi_rs_length)
+ (total_length - acpi_ut_get_resource_header_length(aml));
+
+ /* Length is stored differently for large and small descriptors */
+
+ if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) {
+
+ /* Large descriptor -- bytes 1-2 contain the 16-bit length */
+
+ ACPI_MOVE_16_TO_16(&aml->large_header.resource_length,
+ &resource_length);
+ } else {
+ /* Small descriptor -- bits 2:0 of byte 0 contain the length */
+
+ aml->small_header.descriptor_type = (u8)
+
+ /* Clear any existing length, preserving descriptor type bits */
+ ((aml->small_header.
+ descriptor_type & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
+
+ | resource_length);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_set_resource_header
+ *
+ * PARAMETERS: descriptor_type - Byte to be inserted as the type
+ * total_length - Length of the AML descriptor, including
+ * the header and length fields.
+ * Aml - Pointer to the raw AML descriptor
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Set the descriptor_type and resource_length fields of an AML
+ * resource descriptor, both Large and Small descriptors are
+ * supported automatically
+ *
+ ******************************************************************************/
+
+void
+acpi_rs_set_resource_header(u8 descriptor_type,
+ acpi_rsdesc_size total_length,
+ union aml_resource *aml)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Set the Resource Type */
+
+ aml->small_header.descriptor_type = descriptor_type;
+
+ /* Set the Resource Length */
+
+ acpi_rs_set_resource_length(total_length, aml);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_strcpy
+ *
+ * PARAMETERS: Destination - Pointer to the destination string
+ * Source - Pointer to the source string
+ *
+ * RETURN: String length, including NULL terminator
+ *
+ * DESCRIPTION: Local string copy that returns the string length, saving a
+ * strcpy followed by a strlen.
+ *
+ ******************************************************************************/
+
+static u16 acpi_rs_strcpy(char *destination, char *source)
+{
+ u16 i;
+
+ ACPI_FUNCTION_ENTRY();
+
+ for (i = 0; source[i]; i++) {
+ destination[i] = source[i];
+ }
+
+ destination[i] = 0;
+
+ /* Return string length including the NULL terminator */
+
+ return ((u16) (i + 1));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_resource_source
+ *
+ * PARAMETERS: resource_length - Length field of the descriptor
+ * minimum_length - Minimum length of the descriptor (minus
+ * any optional fields)
+ * resource_source - Where the resource_source is returned
+ * Aml - Pointer to the raw AML descriptor
+ * string_ptr - (optional) where to store the actual
+ * resource_source string
+ *
+ * RETURN: Length of the string plus NULL terminator, rounded up to native
+ * word boundary
+ *
+ * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor
+ * to an internal resource descriptor
+ *
+ ******************************************************************************/
+
+acpi_rs_length
+acpi_rs_get_resource_source(acpi_rs_length resource_length,
+ acpi_rs_length minimum_length,
+ struct acpi_resource_source * resource_source,
+ union aml_resource * aml, char *string_ptr)
+{
+ acpi_rsdesc_size total_length;
+ u8 *aml_resource_source;
+
+ ACPI_FUNCTION_ENTRY();
+
+ total_length =
+ resource_length + sizeof(struct aml_resource_large_header);
+ aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
+
+ /*
+ * resource_source is present if the length of the descriptor is longer than
+ * the minimum length.
+ *
+ * Note: Some resource descriptors will have an additional null, so
+ * we add 1 to the minimum length.
+ */
+ if (total_length > (acpi_rsdesc_size) (minimum_length + 1)) {
+
+ /* Get the resource_source_index */
+
+ resource_source->index = aml_resource_source[0];
+
+ resource_source->string_ptr = string_ptr;
+ if (!string_ptr) {
+ /*
+ * String destination pointer is not specified; Set the String
+ * pointer to the end of the current resource_source structure.
+ */
+ resource_source->string_ptr =
+ ACPI_ADD_PTR(char, resource_source,
+ sizeof(struct acpi_resource_source));
+ }
+
+ /*
+ * In order for the Resource length to be a multiple of the native
+ * word, calculate the length of the string (+1 for NULL terminator)
+ * and expand to the next word multiple.
+ *
+ * Zero the entire area of the buffer.
+ */
+ total_length = (u32)
+ ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1;
+ total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
+
+ ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
+
+ /* Copy the resource_source string to the destination */
+
+ resource_source->string_length =
+ acpi_rs_strcpy(resource_source->string_ptr,
+ ACPI_CAST_PTR(char,
+ &aml_resource_source[1]));
+
+ return ((acpi_rs_length) total_length);
+ }
+
+ /* resource_source is not present */
+
+ resource_source->index = 0;
+ resource_source->string_length = 0;
+ resource_source->string_ptr = NULL;
+ return (0);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_set_resource_source
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML descriptor
+ * minimum_length - Minimum length of the descriptor (minus
+ * any optional fields)
+ * resource_source - Internal resource_source
+
+ *
+ * RETURN: Total length of the AML descriptor
+ *
+ * DESCRIPTION: Convert an optional resource_source from internal format to a
+ * raw AML resource descriptor
+ *
+ ******************************************************************************/
+
+acpi_rsdesc_size
+acpi_rs_set_resource_source(union aml_resource * aml,
+ acpi_rs_length minimum_length,
+ struct acpi_resource_source * resource_source)
+{
+ u8 *aml_resource_source;
+ acpi_rsdesc_size descriptor_length;
+
+ ACPI_FUNCTION_ENTRY();
+
+ descriptor_length = minimum_length;
+
+ /* Non-zero string length indicates presence of a resource_source */
+
+ if (resource_source->string_length) {
+
+ /* Point to the end of the AML descriptor */
+
+ aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
+
+ /* Copy the resource_source_index */
+
+ aml_resource_source[0] = (u8) resource_source->index;
+
+ /* Copy the resource_source string */
+
+ ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]),
+ resource_source->string_ptr);
+
+ /*
+ * Add the length of the string (+ 1 for null terminator) to the
+ * final descriptor length
+ */
+ descriptor_length +=
+ ((acpi_rsdesc_size) resource_source->string_length + 1);
+ }
+
+ /* Return the new total length of the AML descriptor */
+
+ return (descriptor_length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_prt_method_data
+ *
+ * PARAMETERS: Node - Device node
+ * ret_buffer - Pointer to a buffer structure for the
+ * results
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the _PRT value of an object
+ * contained in an object specified by the handle passed in
+ *
+ * If the function fails an appropriate status will be returned
+ * and the contents of the callers buffer is undefined.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_get_prt_method_data(struct acpi_namespace_node * node,
+ struct acpi_buffer * ret_buffer)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(rs_get_prt_method_data);
+
+ /* Parameters guaranteed valid by caller */
+
+ /* Execute the method, no parameters */
+
+ status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT,
+ ACPI_BTYPE_PACKAGE, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Create a resource linked list from the byte stream buffer that comes
+ * back from the _CRS method execution.
+ */
+ status = acpi_rs_create_pci_routing_table(obj_desc, ret_buffer);
+
+ /* On exit, we must delete the object returned by evaluate_object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_crs_method_data
+ *
+ * PARAMETERS: Node - Device node
+ * ret_buffer - Pointer to a buffer structure for the
+ * results
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the _CRS value of an object
+ * contained in an object specified by the handle passed in
+ *
+ * If the function fails an appropriate status will be returned
+ * and the contents of the callers buffer is undefined.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
+ struct acpi_buffer *ret_buffer)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(rs_get_crs_method_data);
+
+ /* Parameters guaranteed valid by caller */
+
+ /* Execute the method, no parameters */
+
+ status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS,
+ ACPI_BTYPE_BUFFER, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Make the call to create a resource linked list from the
+ * byte stream buffer that comes back from the _CRS method
+ * execution.
+ */
+ status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
+
+ /* On exit, we must delete the object returned by evaluate_object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_prs_method_data
+ *
+ * PARAMETERS: Node - Device node
+ * ret_buffer - Pointer to a buffer structure for the
+ * results
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the _PRS value of an object
+ * contained in an object specified by the handle passed in
+ *
+ * If the function fails an appropriate status will be returned
+ * and the contents of the callers buffer is undefined.
+ *
+ ******************************************************************************/
+
+#ifdef ACPI_FUTURE_USAGE
+acpi_status
+acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
+ struct acpi_buffer *ret_buffer)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(rs_get_prs_method_data);
+
+ /* Parameters guaranteed valid by caller */
+
+ /* Execute the method, no parameters */
+
+ status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS,
+ ACPI_BTYPE_BUFFER, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Make the call to create a resource linked list from the
+ * byte stream buffer that comes back from the _CRS method
+ * execution.
+ */
+ status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
+
+ /* On exit, we must delete the object returned by evaluate_object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+#endif /* ACPI_FUTURE_USAGE */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_get_method_data
+ *
+ * PARAMETERS: Handle - Handle to the containing object
+ * Path - Path to method, relative to Handle
+ * ret_buffer - Pointer to a buffer structure for the
+ * results
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the _CRS or _PRS value of an
+ * object contained in an object specified by the handle passed in
+ *
+ * If the function fails an appropriate status will be returned
+ * and the contents of the callers buffer is undefined.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_get_method_data(acpi_handle handle,
+ char *path, struct acpi_buffer *ret_buffer)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(rs_get_method_data);
+
+ /* Parameters guaranteed valid by caller */
+
+ /* Execute the method, no parameters */
+
+ status =
+ acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Make the call to create a resource linked list from the
+ * byte stream buffer that comes back from the method
+ * execution.
+ */
+ status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
+
+ /* On exit, we must delete the object returned by evaluate_object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_set_srs_method_data
+ *
+ * PARAMETERS: Node - Device node
+ * in_buffer - Pointer to a buffer structure of the
+ * parameter
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to set the _SRS of an object contained
+ * in an object specified by the handle passed in
+ *
+ * If the function fails an appropriate status will be returned
+ * and the contents of the callers buffer is undefined.
+ *
+ * Note: Parameters guaranteed valid by caller
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
+ struct acpi_buffer *in_buffer)
+{
+ struct acpi_evaluate_info *info;
+ union acpi_operand_object *args[2];
+ acpi_status status;
+ struct acpi_buffer buffer;
+
+ ACPI_FUNCTION_TRACE(rs_set_srs_method_data);
+
+ /* Allocate and initialize the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->prefix_node = node;
+ info->pathname = METHOD_NAME__SRS;
+ info->parameters = args;
+ info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+ /*
+ * The in_buffer parameter will point to a linked list of
+ * resource parameters. It needs to be formatted into a
+ * byte stream to be sent in as an input parameter to _SRS
+ *
+ * Convert the linked list into a byte stream
+ */
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ /* Create and initialize the method parameter object */
+
+ args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
+ if (!args[0]) {
+ /*
+ * Must free the buffer allocated above (otherwise it is freed
+ * later)
+ */
+ ACPI_FREE(buffer.pointer);
+ status = AE_NO_MEMORY;
+ goto cleanup;
+ }
+
+ args[0]->buffer.length = (u32) buffer.length;
+ args[0]->buffer.pointer = buffer.pointer;
+ args[0]->common.flags = AOPOBJ_DATA_VALID;
+ args[1] = NULL;
+
+ /* Execute the method, no return value is expected */
+
+ status = acpi_ns_evaluate(info);
+
+ /* Clean up and return the status from acpi_ns_evaluate */
+
+ acpi_ut_remove_reference(args[0]);
+
+ cleanup:
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: rsxface - Public interfaces to the resource manager
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acresrc.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_RESOURCES
+ACPI_MODULE_NAME("rsxface")
+
+/* Local macros for 16,32-bit to 64-bit conversion */
+#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field)
+#define ACPI_COPY_ADDRESS(out, in) \
+ ACPI_COPY_FIELD(out, in, resource_type); \
+ ACPI_COPY_FIELD(out, in, producer_consumer); \
+ ACPI_COPY_FIELD(out, in, decode); \
+ ACPI_COPY_FIELD(out, in, min_address_fixed); \
+ ACPI_COPY_FIELD(out, in, max_address_fixed); \
+ ACPI_COPY_FIELD(out, in, info); \
+ ACPI_COPY_FIELD(out, in, granularity); \
+ ACPI_COPY_FIELD(out, in, minimum); \
+ ACPI_COPY_FIELD(out, in, maximum); \
+ ACPI_COPY_FIELD(out, in, translation_offset); \
+ ACPI_COPY_FIELD(out, in, address_length); \
+ ACPI_COPY_FIELD(out, in, resource_source);
+/* Local prototypes */
+static acpi_status
+acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context);
+
+static acpi_status
+acpi_rs_validate_parameters(acpi_handle device_handle,
+ struct acpi_buffer *buffer,
+ struct acpi_namespace_node **return_node);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_validate_parameters
+ *
+ * PARAMETERS: device_handle - Handle to a device
+ * Buffer - Pointer to a data buffer
+ * return_node - Pointer to where the device node is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Common parameter validation for resource interfaces
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_rs_validate_parameters(acpi_handle device_handle,
+ struct acpi_buffer *buffer,
+ struct acpi_namespace_node **return_node)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(rs_validate_parameters);
+
+ /*
+ * Must have a valid handle to an ACPI device
+ */
+ if (!device_handle) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ node = acpi_ns_map_handle_to_node(device_handle);
+ if (!node) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (node->type != ACPI_TYPE_DEVICE) {
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ /*
+ * Validate the user buffer object
+ *
+ * if there is a non-zero buffer length we also need a valid pointer in
+ * the buffer. If it's a zero buffer length, we'll be returning the
+ * needed buffer size (later), so keep going.
+ */
+ status = acpi_ut_validate_buffer(buffer);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ *return_node = node;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_irq_routing_table
+ *
+ * PARAMETERS: device_handle - Handle to the Bus device we are querying
+ * ret_buffer - Pointer to a buffer to receive the
+ * current resources for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the IRQ routing table for a
+ * specific bus. The caller must first acquire a handle for the
+ * desired bus. The routine table is placed in the buffer pointed
+ * to by the ret_buffer variable parameter.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of ret_buffer is undefined.
+ *
+ * This function attempts to execute the _PRT method contained in
+ * the object indicated by the passed device_handle.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_irq_routing_table(acpi_handle device_handle,
+ struct acpi_buffer *ret_buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table);
+
+ /* Validate parameters then dispatch to internal routine */
+
+ status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_rs_get_prt_method_data(node, ret_buffer);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_current_resources
+ *
+ * PARAMETERS: device_handle - Handle to the device object for the
+ * device we are querying
+ * ret_buffer - Pointer to a buffer to receive the
+ * current resources for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the current resources for a
+ * specific device. The caller must first acquire a handle for
+ * the desired device. The resource data is placed in the buffer
+ * pointed to by the ret_buffer variable parameter.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of ret_buffer is undefined.
+ *
+ * This function attempts to execute the _CRS method contained in
+ * the object indicated by the passed device_handle.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_current_resources(acpi_handle device_handle,
+ struct acpi_buffer *ret_buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(acpi_get_current_resources);
+
+ /* Validate parameters then dispatch to internal routine */
+
+ status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_rs_get_crs_method_data(node, ret_buffer);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_current_resources)
+#ifdef ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_possible_resources
+ *
+ * PARAMETERS: device_handle - Handle to the device object for the
+ * device we are querying
+ * ret_buffer - Pointer to a buffer to receive the
+ * resources for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get a list of the possible resources
+ * for a specific device. The caller must first acquire a handle
+ * for the desired device. The resource data is placed in the
+ * buffer pointed to by the ret_buffer variable.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of ret_buffer is undefined.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_possible_resources(acpi_handle device_handle,
+ struct acpi_buffer *ret_buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(acpi_get_possible_resources);
+
+ /* Validate parameters then dispatch to internal routine */
+
+ status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_rs_get_prs_method_data(node, ret_buffer);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
+#endif /* ACPI_FUTURE_USAGE */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_set_current_resources
+ *
+ * PARAMETERS: device_handle - Handle to the device object for the
+ * device we are setting resources
+ * in_buffer - Pointer to a buffer containing the
+ * resources to be set for the device
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to set the current resources for a
+ * specific device. The caller must first acquire a handle for
+ * the desired device. The resource data is passed to the routine
+ * the buffer pointed to by the in_buffer variable.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_set_current_resources(acpi_handle device_handle,
+ struct acpi_buffer *in_buffer)
+{
+ acpi_status status;
+ struct acpi_namespace_node *node;
+
+ ACPI_FUNCTION_TRACE(acpi_set_current_resources);
+
+ /* Validate the buffer, don't allow zero length */
+
+ if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Validate parameters then dispatch to internal routine */
+
+ status = acpi_rs_validate_parameters(device_handle, in_buffer, &node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ status = acpi_rs_set_srs_method_data(node, in_buffer);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_current_resources)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_resource_to_address64
+ *
+ * PARAMETERS: Resource - Pointer to a resource
+ * Out - Pointer to the users's return buffer
+ * (a struct acpi_resource_address64)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: If the resource is an address16, address32, or address64,
+ * copy it to the address64 return buffer. This saves the
+ * caller from having to duplicate code for different-sized
+ * addresses.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_resource_to_address64(struct acpi_resource *resource,
+ struct acpi_resource_address64 *out)
+{
+ struct acpi_resource_address16 *address16;
+ struct acpi_resource_address32 *address32;
+
+ if (!resource || !out) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Convert 16 or 32 address descriptor to 64 */
+
+ switch (resource->type) {
+ case ACPI_RESOURCE_TYPE_ADDRESS16:
+
+ address16 = (struct acpi_resource_address16 *)&resource->data;
+ ACPI_COPY_ADDRESS(out, address16);
+ break;
+
+ case ACPI_RESOURCE_TYPE_ADDRESS32:
+
+ address32 = (struct acpi_resource_address32 *)&resource->data;
+ ACPI_COPY_ADDRESS(out, address32);
+ break;
+
+ case ACPI_RESOURCE_TYPE_ADDRESS64:
+
+ /* Simple copy for 64 bit source */
+
+ ACPI_MEMCPY(out, &resource->data,
+ sizeof(struct acpi_resource_address64));
+ break;
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_resource_to_address64)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_vendor_resource
+ *
+ * PARAMETERS: device_handle - Handle for the parent device object
+ * Name - Method name for the parent resource
+ * (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ * Uuid - Pointer to the UUID to be matched.
+ * includes both subtype and 16-byte UUID
+ * ret_buffer - Where the vendor resource is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk a resource template for the specified evice to find a
+ * vendor-defined resource that matches the supplied UUID and
+ * UUID subtype. Returns a struct acpi_resource of type Vendor.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_vendor_resource(acpi_handle device_handle,
+ char *name,
+ struct acpi_vendor_uuid * uuid,
+ struct acpi_buffer * ret_buffer)
+{
+ struct acpi_vendor_walk_info info;
+ acpi_status status;
+
+ /* Other parameters are validated by acpi_walk_resources */
+
+ if (!uuid || !ret_buffer) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ info.uuid = uuid;
+ info.buffer = ret_buffer;
+ info.status = AE_NOT_EXIST;
+
+ /* Walk the _CRS or _PRS resource list for this device */
+
+ status =
+ acpi_walk_resources(device_handle, name,
+ acpi_rs_match_vendor_resource, &info);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ return (info.status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_rs_match_vendor_resource
+ *
+ * PARAMETERS: acpi_walk_resource_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID
+ *
+ ******************************************************************************/
+static acpi_status
+acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
+{
+ struct acpi_vendor_walk_info *info = context;
+ struct acpi_resource_vendor_typed *vendor;
+ struct acpi_buffer *buffer;
+ acpi_status status;
+
+ /* Ignore all descriptors except Vendor */
+
+ if (resource->type != ACPI_RESOURCE_TYPE_VENDOR) {
+ return (AE_OK);
+ }
+
+ vendor = &resource->data.vendor_typed;
+
+ /*
+ * For a valid match, these conditions must hold:
+ *
+ * 1) Length of descriptor data must be at least as long as a UUID struct
+ * 2) The UUID subtypes must match
+ * 3) The UUID data must match
+ */
+ if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) ||
+ (vendor->uuid_subtype != info->uuid->subtype) ||
+ (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
+ return (AE_OK);
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ buffer = info->buffer;
+ status = acpi_ut_initialize_buffer(buffer, resource->length);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Found the correct resource, copy and return it */
+
+ ACPI_MEMCPY(buffer->pointer, resource, resource->length);
+ buffer->length = resource->length;
+
+ /* Found the desired descriptor, terminate resource walk */
+
+ info->status = AE_OK;
+ return (AE_CTRL_TERMINATE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_walk_resources
+ *
+ * PARAMETERS: device_handle - Handle to the device object for the
+ * device we are querying
+ * Name - Method name of the resources we want
+ * (METHOD_NAME__CRS or METHOD_NAME__PRS)
+ * user_function - Called for each resource
+ * Context - Passed to user_function
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Retrieves the current or possible resource list for the
+ * specified device. The user_function is called once for
+ * each resource in the list.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_walk_resources(acpi_handle device_handle,
+ char *name,
+ acpi_walk_resource_callback user_function, void *context)
+{
+ acpi_status status;
+ struct acpi_buffer buffer;
+ struct acpi_resource *resource;
+ struct acpi_resource *resource_end;
+
+ ACPI_FUNCTION_TRACE(acpi_walk_resources);
+
+ /* Parameter validation */
+
+ if (!device_handle || !user_function || !name ||
+ (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
+ !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ /* Get the _CRS or _PRS resource list */
+
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_rs_get_method_data(device_handle, name, &buffer);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Buffer now contains the resource list */
+
+ resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer);
+ resource_end =
+ ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length);
+
+ /* Walk the resource list until the end_tag is found (or buffer end) */
+
+ while (resource < resource_end) {
+
+ /* Sanity check the resource */
+
+ if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
+ status = AE_AML_INVALID_RESOURCE_TYPE;
+ break;
+ }
+
+ /* Invoke the user function, abort on any error returned */
+
+ status = user_function(resource, context);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_CTRL_TERMINATE) {
+
+ /* This is an OK termination by the user function */
+
+ status = AE_OK;
+ }
+ break;
+ }
+
+ /* end_tag indicates end-of-list */
+
+ if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
+ break;
+ }
+
+ /* Get the next resource descriptor */
+
+ resource =
+ ACPI_ADD_PTR(struct acpi_resource, resource,
+ resource->length);
+ }
+
+ ACPI_FREE(buffer.pointer);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_walk_resources)
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: tbfadt - FADT table utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbfadt")
+
+/* Local prototypes */
+static inline void
+acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
+ u8 space_id, u8 byte_width, u64 address);
+
+static void acpi_tb_convert_fadt(void);
+
+static void acpi_tb_validate_fadt(void);
+
+/* Table for conversion of FADT to common internal format and FADT validation */
+
+typedef struct acpi_fadt_info {
+ char *name;
+ u8 address64;
+ u8 address32;
+ u8 length;
+ u8 default_length;
+ u8 type;
+
+} acpi_fadt_info;
+
+#define ACPI_FADT_REQUIRED 1
+#define ACPI_FADT_SEPARATE_LENGTH 2
+
+static struct acpi_fadt_info fadt_info_table[] = {
+ {"Pm1aEventBlock",
+ ACPI_FADT_OFFSET(xpm1a_event_block),
+ ACPI_FADT_OFFSET(pm1a_event_block),
+ ACPI_FADT_OFFSET(pm1_event_length),
+ ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
+ ACPI_FADT_REQUIRED},
+
+ {"Pm1bEventBlock",
+ ACPI_FADT_OFFSET(xpm1b_event_block),
+ ACPI_FADT_OFFSET(pm1b_event_block),
+ ACPI_FADT_OFFSET(pm1_event_length),
+ ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
+ 0},
+
+ {"Pm1aControlBlock",
+ ACPI_FADT_OFFSET(xpm1a_control_block),
+ ACPI_FADT_OFFSET(pm1a_control_block),
+ ACPI_FADT_OFFSET(pm1_control_length),
+ ACPI_PM1_REGISTER_WIDTH,
+ ACPI_FADT_REQUIRED},
+
+ {"Pm1bControlBlock",
+ ACPI_FADT_OFFSET(xpm1b_control_block),
+ ACPI_FADT_OFFSET(pm1b_control_block),
+ ACPI_FADT_OFFSET(pm1_control_length),
+ ACPI_PM1_REGISTER_WIDTH,
+ 0},
+
+ {"Pm2ControlBlock",
+ ACPI_FADT_OFFSET(xpm2_control_block),
+ ACPI_FADT_OFFSET(pm2_control_block),
+ ACPI_FADT_OFFSET(pm2_control_length),
+ ACPI_PM2_REGISTER_WIDTH,
+ ACPI_FADT_SEPARATE_LENGTH},
+
+ {"PmTimerBlock",
+ ACPI_FADT_OFFSET(xpm_timer_block),
+ ACPI_FADT_OFFSET(pm_timer_block),
+ ACPI_FADT_OFFSET(pm_timer_length),
+ ACPI_PM_TIMER_WIDTH,
+ ACPI_FADT_REQUIRED},
+
+ {"Gpe0Block",
+ ACPI_FADT_OFFSET(xgpe0_block),
+ ACPI_FADT_OFFSET(gpe0_block),
+ ACPI_FADT_OFFSET(gpe0_block_length),
+ 0,
+ ACPI_FADT_SEPARATE_LENGTH},
+
+ {"Gpe1Block",
+ ACPI_FADT_OFFSET(xgpe1_block),
+ ACPI_FADT_OFFSET(gpe1_block),
+ ACPI_FADT_OFFSET(gpe1_block_length),
+ 0,
+ ACPI_FADT_SEPARATE_LENGTH}
+};
+
+#define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info))
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_init_generic_address
+ *
+ * PARAMETERS: generic_address - GAS struct to be initialized
+ * byte_width - Width of this register
+ * Address - Address of the register
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Initialize a Generic Address Structure (GAS)
+ * See the ACPI specification for a full description and
+ * definition of this structure.
+ *
+ ******************************************************************************/
+
+static inline void
+acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
+ u8 space_id, u8 byte_width, u64 address)
+{
+
+ /*
+ * The 64-bit Address field is non-aligned in the byte packed
+ * GAS struct.
+ */
+ ACPI_MOVE_64_TO_64(&generic_address->address, &address);
+
+ /* All other fields are byte-wide */
+
+ generic_address->space_id = space_id;
+ generic_address->bit_width = (u8)ACPI_MUL_8(byte_width);
+ generic_address->bit_offset = 0;
+ generic_address->access_width = 0; /* Access width ANY */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_parse_fadt
+ *
+ * PARAMETERS: table_index - Index for the FADT
+ * Flags - Flags
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Initialize the FADT, DSDT and FACS tables
+ * (FADT contains the addresses of the DSDT and FACS)
+ *
+ ******************************************************************************/
+
+void acpi_tb_parse_fadt(u32 table_index, u8 flags)
+{
+ u32 length;
+ struct acpi_table_header *table;
+
+ /*
+ * The FADT has multiple versions with different lengths,
+ * and it contains pointers to both the DSDT and FACS tables.
+ *
+ * Get a local copy of the FADT and convert it to a common format
+ * Map entire FADT, assumed to be smaller than one page.
+ */
+ length = acpi_gbl_root_table_list.tables[table_index].length;
+
+ table =
+ acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
+ address, length);
+ if (!table) {
+ return;
+ }
+
+ /*
+ * Validate the FADT checksum before we copy the table. Ignore
+ * checksum error as we want to try to get the DSDT and FACS.
+ */
+ (void)acpi_tb_verify_checksum(table, length);
+
+ /* Obtain a local copy of the FADT in common ACPI 2.0+ format */
+
+ acpi_tb_create_local_fadt(table, length);
+
+ /* All done with the real FADT, unmap it */
+
+ acpi_os_unmap_memory(table, length);
+
+ /* Obtain the DSDT and FACS tables via their addresses within the FADT */
+
+ acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
+ flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
+
+ acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs,
+ flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_create_local_fadt
+ *
+ * PARAMETERS: Table - Pointer to BIOS FADT
+ * Length - Length of the table
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Get a local copy of the FADT and convert it to a common format.
+ * Performs validation on some important FADT fields.
+ *
+ * NOTE: We create a local copy of the FADT regardless of the version.
+ *
+ ******************************************************************************/
+
+void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
+{
+
+ /*
+ * Check if the FADT is larger than the largest table that we expect
+ * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue
+ * a warning.
+ */
+ if (length > sizeof(struct acpi_table_fadt)) {
+ ACPI_WARNING((AE_INFO,
+ "FADT (revision %u) is longer than ACPI 2.0 version, "
+ "truncating length 0x%X to 0x%zX",
+ table->revision, (unsigned)length,
+ sizeof(struct acpi_table_fadt)));
+ }
+
+ /* Clear the entire local FADT */
+
+ ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
+
+ /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */
+
+ ACPI_MEMCPY(&acpi_gbl_FADT, table,
+ ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
+
+ /*
+ * 1) Convert the local copy of the FADT to the common internal format
+ * 2) Validate some of the important values within the FADT
+ */
+ acpi_tb_convert_fadt();
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_convert_fadt
+ *
+ * PARAMETERS: None, uses acpi_gbl_FADT
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Converts all versions of the FADT to a common internal format.
+ * Expand all 32-bit addresses to 64-bit.
+ *
+ * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt),
+ * and must contain a copy of the actual FADT.
+ *
+ * ACPICA will use the "X" fields of the FADT for all addresses.
+ *
+ * "X" fields are optional extensions to the original V1.0 fields. Even if
+ * they are present in the structure, they can be optionally not used by
+ * setting them to zero. Therefore, we must selectively expand V1.0 fields
+ * if the corresponding X field is zero.
+ *
+ * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding
+ * "X" fields.
+ *
+ * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by
+ * expanding the corresponding ACPI 1.0 field.
+ *
+ ******************************************************************************/
+
+static void acpi_tb_convert_fadt(void)
+{
+ u8 pm1_register_bit_width;
+ u8 pm1_register_byte_width;
+ struct acpi_generic_address *target64;
+ u32 i;
+
+ /* Update the local FADT table header length */
+
+ acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
+
+ /*
+ * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
+ * Later code will always use the X 64-bit field. Also, check for an
+ * address mismatch between the 32-bit and 64-bit address fields
+ * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate
+ * the presence of two FACS or two DSDT tables.
+ */
+ if (!acpi_gbl_FADT.Xfacs) {
+ acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
+ } else if (acpi_gbl_FADT.facs &&
+ (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64 FACS address mismatch in FADT - two FACS tables!"));
+ }
+
+ if (!acpi_gbl_FADT.Xdsdt) {
+ acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
+ } else if (acpi_gbl_FADT.dsdt &&
+ (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64 DSDT address mismatch in FADT - two DSDT tables!"));
+ }
+
+ /*
+ * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which
+ * should be zero are indeed zero. This will workaround BIOSs that
+ * inadvertently place values in these fields.
+ *
+ * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
+ * offset 45, 55, 95, and the word located at offset 109, 110.
+ */
+ if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
+ acpi_gbl_FADT.preferred_profile = 0;
+ acpi_gbl_FADT.pstate_control = 0;
+ acpi_gbl_FADT.cst_control = 0;
+ acpi_gbl_FADT.boot_flags = 0;
+ }
+
+ /*
+ * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X"
+ * generic address structures as necessary. Later code will always use
+ * the 64-bit address structures.
+ */
+ for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+ target64 =
+ ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
+ fadt_info_table[i].address64);
+
+ /* Expand only if the 64-bit X target is null */
+
+ if (!target64->address) {
+
+ /* The space_id is always I/O for the 32-bit legacy address fields */
+
+ acpi_tb_init_generic_address(target64,
+ ACPI_ADR_SPACE_SYSTEM_IO,
+ *ACPI_ADD_PTR(u8,
+ &acpi_gbl_FADT,
+ fadt_info_table
+ [i].length),
+ (u64) * ACPI_ADD_PTR(u32,
+ &acpi_gbl_FADT,
+ fadt_info_table
+ [i].
+ address32));
+ }
+ }
+
+ /* Validate FADT values now, before we make any changes */
+
+ acpi_tb_validate_fadt();
+
+ /*
+ * Optionally check all register lengths against the default values and
+ * update them if they are incorrect.
+ */
+ if (acpi_gbl_use_default_register_widths) {
+ for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+ target64 =
+ ACPI_ADD_PTR(struct acpi_generic_address,
+ &acpi_gbl_FADT,
+ fadt_info_table[i].address64);
+
+ /*
+ * If a valid register (Address != 0) and the (default_length > 0)
+ * (Not a GPE register), then check the width against the default.
+ */
+ if ((target64->address) &&
+ (fadt_info_table[i].default_length > 0) &&
+ (fadt_info_table[i].default_length !=
+ target64->bit_width)) {
+ ACPI_WARNING((AE_INFO,
+ "Invalid length for %s: %d, using default %d",
+ fadt_info_table[i].name,
+ target64->bit_width,
+ fadt_info_table[i].
+ default_length));
+
+ /* Incorrect size, set width to the default */
+
+ target64->bit_width =
+ fadt_info_table[i].default_length;
+ }
+ }
+ }
+
+ /*
+ * Get the length of the individual PM1 registers (enable and status).
+ * Each register is defined to be (event block length / 2).
+ */
+ pm1_register_bit_width =
+ (u8)ACPI_DIV_2(acpi_gbl_FADT.xpm1a_event_block.bit_width);
+ pm1_register_byte_width = (u8)ACPI_DIV_8(pm1_register_bit_width);
+
+ /*
+ * Adjust the lengths of the PM1 Event Blocks so that they can be used to
+ * access the PM1 status register(s). Use (width / 2)
+ */
+ acpi_gbl_FADT.xpm1a_event_block.bit_width = pm1_register_bit_width;
+ acpi_gbl_FADT.xpm1b_event_block.bit_width = pm1_register_bit_width;
+
+ /*
+ * Calculate separate GAS structs for the PM1 Enable registers.
+ * These addresses do not appear (directly) in the FADT, so it is
+ * useful to calculate them once, here.
+ *
+ * The PM event blocks are split into two register blocks, first is the
+ * PM Status Register block, followed immediately by the PM Enable
+ * Register block. Each is of length (xpm1x_event_block.bit_width/2).
+ *
+ * On various systems the v2 fields (and particularly the bit widths)
+ * cannot be relied upon, though. Hence resort to using the v1 length
+ * here (and warn about the inconsistency).
+ */
+ if (acpi_gbl_FADT.xpm1a_event_block.bit_width
+ != acpi_gbl_FADT.pm1_event_length * 8)
+ printk(KERN_WARNING "FADT: "
+ "X_PM1a_EVT_BLK.bit_width (%u) does not match"
+ " PM1_EVT_LEN (%u)\n",
+ acpi_gbl_FADT.xpm1a_event_block.bit_width,
+ acpi_gbl_FADT.pm1_event_length);
+
+ /* The PM1A register block is required */
+
+ acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
+ acpi_gbl_FADT.xpm1a_event_block.space_id,
+ pm1_register_byte_width,
+ (acpi_gbl_FADT.xpm1a_event_block.address +
+ pm1_register_byte_width));
+ /* Don't forget to copy space_id of the GAS */
+ acpi_gbl_xpm1a_enable.space_id =
+ acpi_gbl_FADT.xpm1a_event_block.space_id;
+
+ /* The PM1B register block is optional, ignore if not present */
+
+ if (acpi_gbl_FADT.xpm1b_event_block.address) {
+ if (acpi_gbl_FADT.xpm1b_event_block.bit_width
+ != acpi_gbl_FADT.pm1_event_length * 8)
+ printk(KERN_WARNING "FADT: "
+ "X_PM1b_EVT_BLK.bit_width (%u) does not match"
+ " PM1_EVT_LEN (%u)\n",
+ acpi_gbl_FADT.xpm1b_event_block.bit_width,
+ acpi_gbl_FADT.pm1_event_length);
+ acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
+ acpi_gbl_FADT.xpm1b_event_block.space_id,
+ pm1_register_byte_width,
+ (acpi_gbl_FADT.xpm1b_event_block.
+ address + pm1_register_byte_width));
+ /* Don't forget to copy space_id of the GAS */
+ acpi_gbl_xpm1b_enable.space_id =
+ acpi_gbl_FADT.xpm1b_event_block.space_id;
+
+ }
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_tb_validate_fadt
+ *
+ * PARAMETERS: Table - Pointer to the FADT to be validated
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Validate various important fields within the FADT. If a problem
+ * is found, issue a message, but no status is returned.
+ * Used by both the table manager and the disassembler.
+ *
+ * Possible additional checks:
+ * (acpi_gbl_FADT.pm1_event_length >= 4)
+ * (acpi_gbl_FADT.pm1_control_length >= 2)
+ * (acpi_gbl_FADT.pm_timer_length >= 4)
+ * Gpe block lengths must be multiple of 2
+ *
+ ******************************************************************************/
+
+static void acpi_tb_validate_fadt(void)
+{
+ char *name;
+ u32 *address32;
+ struct acpi_generic_address *address64;
+ u8 length;
+ u32 i;
+
+ /*
+ * Check for FACS and DSDT address mismatches. An address mismatch between
+ * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and
+ * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables.
+ */
+ if (acpi_gbl_FADT.facs &&
+ (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64X FACS address mismatch in FADT - "
+ "two FACS tables! %8.8X/%8.8X%8.8X",
+ acpi_gbl_FADT.facs,
+ ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));
+ }
+
+ if (acpi_gbl_FADT.dsdt &&
+ (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
+ ACPI_WARNING((AE_INFO,
+ "32/64X DSDT address mismatch in FADT - "
+ "two DSDT tables! %8.8X/%8.8X%8.8X",
+ acpi_gbl_FADT.dsdt,
+ ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt)));
+ }
+
+ /* Examine all of the 64-bit extended address fields (X fields) */
+
+ for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+ /*
+ * Generate pointers to the 32-bit and 64-bit addresses, get the
+ * register length (width), and the register name
+ */
+ address64 = ACPI_ADD_PTR(struct acpi_generic_address,
+ &acpi_gbl_FADT,
+ fadt_info_table[i].address64);
+ address32 =
+ ACPI_ADD_PTR(u32, &acpi_gbl_FADT,
+ fadt_info_table[i].address32);
+ length =
+ *ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
+ fadt_info_table[i].length);
+ name = fadt_info_table[i].name;
+
+ /*
+ * For each extended field, check for length mismatch between the
+ * legacy length field and the corresponding 64-bit X length field.
+ */
+ if (address64 && (address64->bit_width != ACPI_MUL_8(length))) {
+ ACPI_WARNING((AE_INFO,
+ "32/64X length mismatch in %s: %d/%d",
+ name, ACPI_MUL_8(length),
+ address64->bit_width));
+ }
+
+ if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
+ /*
+ * Field is required (Pm1a_event, Pm1a_control, pm_timer).
+ * Both the address and length must be non-zero.
+ */
+ if (!address64->address || !length) {
+ ACPI_ERROR((AE_INFO,
+ "Required field %s has zero address and/or length: %8.8X%8.8X/%X",
+ name,
+ ACPI_FORMAT_UINT64(address64->
+ address),
+ length));
+ }
+ } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) {
+ /*
+ * Field is optional (PM2Control, GPE0, GPE1) AND has its own
+ * length field. If present, both the address and length must be valid.
+ */
+ if ((address64->address && !length)
+ || (!address64->address && length)) {
+ ACPI_WARNING((AE_INFO,
+ "Optional field %s has zero address or length: %8.8X%8.8X/%X",
+ name,
+ ACPI_FORMAT_UINT64(address64->
+ address),
+ length));
+ }
+ }
+
+ /* If both 32- and 64-bit addresses are valid (non-zero), they must match */
+
+ if (address64->address && *address32 &&
+ (address64->address != (u64) * address32)) {
+ ACPI_ERROR((AE_INFO,
+ "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 64X",
+ name, *address32,
+ ACPI_FORMAT_UINT64(address64->address)));
+ }
+ }
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: tbfind - find table
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbfind")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_find_table
+ *
+ * PARAMETERS: Signature - String with ACPI table signature
+ * oem_id - String with the table OEM ID
+ * oem_table_id - String with the OEM Table ID
+ * table_index - Where the table index is returned
+ *
+ * RETURN: Status and table index
+ *
+ * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the
+ * Signature, OEM ID and OEM Table ID. Returns an index that can
+ * be used to get the table header or entire table.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_tb_find_table(char *signature,
+ char *oem_id, char *oem_table_id, u32 *table_index)
+{
+ u32 i;
+ acpi_status status;
+ struct acpi_table_header header;
+
+ ACPI_FUNCTION_TRACE(tb_find_table);
+
+ /* Normalize the input strings */
+
+ ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header));
+ ACPI_STRNCPY(header.signature, signature, ACPI_NAME_SIZE);
+ ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
+ ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE);
+
+ /* Search for the table */
+
+ for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+ if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature),
+ header.signature, ACPI_NAME_SIZE)) {
+
+ /* Not the requested table */
+
+ continue;
+ }
+
+ /* Table with matching signature has been found */
+
+ if (!acpi_gbl_root_table_list.tables[i].pointer) {
+
+ /* Table is not currently mapped, map it */
+
+ status =
+ acpi_tb_verify_table(&acpi_gbl_root_table_list.
+ tables[i]);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (!acpi_gbl_root_table_list.tables[i].pointer) {
+ continue;
+ }
+ }
+
+ /* Check for table match on all IDs */
+
+ if (!ACPI_MEMCMP
+ (acpi_gbl_root_table_list.tables[i].pointer->signature,
+ header.signature, ACPI_NAME_SIZE) && (!oem_id[0]
+ ||
+ !ACPI_MEMCMP
+ (acpi_gbl_root_table_list.
+ tables[i].pointer->
+ oem_id,
+ header.oem_id,
+ ACPI_OEM_ID_SIZE))
+ && (!oem_table_id[0]
+ || !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i].
+ pointer->oem_table_id,
+ header.oem_table_id,
+ ACPI_OEM_TABLE_ID_SIZE))) {
+ *table_index = i;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
+ "Found table [%4.4s]\n",
+ header.signature));
+ return_ACPI_STATUS(AE_OK);
+ }
+ }
+
+ return_ACPI_STATUS(AE_NOT_FOUND);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: tbinstal - ACPI table installation and removal
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbinstal")
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_tb_verify_table
+ *
+ * PARAMETERS: table_desc - table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: this function is called to verify and map table
+ *
+ *****************************************************************************/
+acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(tb_verify_table);
+
+ /* Map the table if necessary */
+
+ if (!table_desc->pointer) {
+ if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) ==
+ ACPI_TABLE_ORIGIN_MAPPED) {
+ table_desc->pointer =
+ acpi_os_map_memory(table_desc->address,
+ table_desc->length);
+ }
+ if (!table_desc->pointer) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ }
+
+ /* FACS is the odd table, has no standard ACPI header and no checksum */
+
+ if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) {
+
+ /* Always calculate checksum, ignore bad checksum if requested */
+
+ status =
+ acpi_tb_verify_checksum(table_desc->pointer,
+ table_desc->length);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_add_table
+ *
+ * PARAMETERS: table_desc - Table descriptor
+ * table_index - Where the table index is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to add the ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
+{
+ u32 i;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(tb_add_table);
+
+ if (!table_desc->pointer) {
+ status = acpi_tb_verify_table(table_desc);
+ if (ACPI_FAILURE(status) || !table_desc->pointer) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Originally, we checked the table signature for "SSDT" or "PSDT" here.
+ * Next, we added support for OEMx tables, signature "OEM".
+ * Valid tables were encountered with a null signature, so we've just
+ * given up on validating the signature, since it seems to be a waste
+ * of code. The original code was removed (05/2008).
+ */
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+ /* Check if table is already registered */
+
+ for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+ if (!acpi_gbl_root_table_list.tables[i].pointer) {
+ status =
+ acpi_tb_verify_table(&acpi_gbl_root_table_list.
+ tables[i]);
+ if (ACPI_FAILURE(status)
+ || !acpi_gbl_root_table_list.tables[i].pointer) {
+ continue;
+ }
+ }
+
+ /*
+ * Check for a table match on the entire table length,
+ * not just the header.
+ */
+ if (table_desc->length !=
+ acpi_gbl_root_table_list.tables[i].length) {
+ continue;
+ }
+
+ if (ACPI_MEMCMP(table_desc->pointer,
+ acpi_gbl_root_table_list.tables[i].pointer,
+ acpi_gbl_root_table_list.tables[i].length)) {
+ continue;
+ }
+
+ /*
+ * Note: the current mechanism does not unregister a table if it is
+ * dynamically unloaded. The related namespace entries are deleted,
+ * but the table remains in the root table list.
+ *
+ * The assumption here is that the number of different tables that
+ * will be loaded is actually small, and there is minimal overhead
+ * in just keeping the table in case it is needed again.
+ *
+ * If this assumption changes in the future (perhaps on large
+ * machines with many table load/unload operations), tables will
+ * need to be unregistered when they are unloaded, and slots in the
+ * root table list should be reused when empty.
+ */
+
+ /*
+ * Table is already registered.
+ * We can delete the table that was passed as a parameter.
+ */
+ acpi_tb_delete_table(table_desc);
+ *table_index = i;
+
+ if (acpi_gbl_root_table_list.tables[i].
+ flags & ACPI_TABLE_IS_LOADED) {
+
+ /* Table is still loaded, this is an error */
+
+ status = AE_ALREADY_EXISTS;
+ goto release;
+ } else {
+ /* Table was unloaded, allow it to be reloaded */
+
+ table_desc->pointer =
+ acpi_gbl_root_table_list.tables[i].pointer;
+ table_desc->address =
+ acpi_gbl_root_table_list.tables[i].address;
+ status = AE_OK;
+ goto print_header;
+ }
+ }
+
+ /* Add the table to the global root table list */
+
+ status = acpi_tb_store_table(table_desc->address, table_desc->pointer,
+ table_desc->length, table_desc->flags,
+ table_index);
+ if (ACPI_FAILURE(status)) {
+ goto release;
+ }
+
+ print_header:
+ acpi_tb_print_table_header(table_desc->address, table_desc->pointer);
+
+ release:
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_resize_root_table_list
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Expand the size of global table array
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_resize_root_table_list(void)
+{
+ struct acpi_table_desc *tables;
+
+ ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
+
+ /* allow_resize flag is a parameter to acpi_initialize_tables */
+
+ if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) {
+ ACPI_ERROR((AE_INFO,
+ "Resize of Root Table Array is not allowed"));
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ /* Increase the Table Array size */
+
+ tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list.
+ size + ACPI_ROOT_TABLE_SIZE_INCREMENT)
+ * sizeof(struct acpi_table_desc));
+ if (!tables) {
+ ACPI_ERROR((AE_INFO,
+ "Could not allocate new root table array"));
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Copy and free the previous table array */
+
+ if (acpi_gbl_root_table_list.tables) {
+ ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
+ (acpi_size) acpi_gbl_root_table_list.size *
+ sizeof(struct acpi_table_desc));
+
+ if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+ ACPI_FREE(acpi_gbl_root_table_list.tables);
+ }
+ }
+
+ acpi_gbl_root_table_list.tables = tables;
+ acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT;
+ acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_store_table
+ *
+ * PARAMETERS: Address - Table address
+ * Table - Table header
+ * Length - Table length
+ * Flags - flags
+ *
+ * RETURN: Status and table index.
+ *
+ * DESCRIPTION: Add an ACPI table to the global table list
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_store_table(acpi_physical_address address,
+ struct acpi_table_header *table,
+ u32 length, u8 flags, u32 *table_index)
+{
+ acpi_status status = AE_OK;
+
+ /* Ensure that there is room for the table in the Root Table List */
+
+ if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) {
+ status = acpi_tb_resize_root_table_list();
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ /* Initialize added table */
+
+ acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+ address = address;
+ acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+ pointer = table;
+ acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length =
+ length;
+ acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+ owner_id = 0;
+ acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags =
+ flags;
+
+ ACPI_MOVE_32_TO_32(&
+ (acpi_gbl_root_table_list.
+ tables[acpi_gbl_root_table_list.count].signature),
+ table->signature);
+
+ *table_index = acpi_gbl_root_table_list.count;
+ acpi_gbl_root_table_list.count++;
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_delete_table
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete one internal ACPI table
+ *
+ ******************************************************************************/
+
+void acpi_tb_delete_table(struct acpi_table_desc *table_desc)
+{
+ /* Table must be mapped or allocated */
+ if (!table_desc->pointer) {
+ return;
+ }
+ switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
+ case ACPI_TABLE_ORIGIN_MAPPED:
+ acpi_os_unmap_memory(table_desc->pointer, table_desc->length);
+ break;
+ case ACPI_TABLE_ORIGIN_ALLOCATED:
+ ACPI_FREE(table_desc->pointer);
+ break;
+ default:;
+ }
+
+ table_desc->pointer = NULL;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_terminate
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete all internal ACPI tables
+ *
+ ******************************************************************************/
+
+void acpi_tb_terminate(void)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(tb_terminate);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+ /* Delete the individual tables */
+
+ for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+ acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]);
+ }
+
+ /*
+ * Delete the root table array if allocated locally. Array cannot be
+ * mapped, so we don't need to check for that flag.
+ */
+ if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+ ACPI_FREE(acpi_gbl_root_table_list.tables);
+ }
+
+ acpi_gbl_root_table_list.tables = NULL;
+ acpi_gbl_root_table_list.flags = 0;
+ acpi_gbl_root_table_list.count = 0;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_delete_namespace_by_owner
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Delete all namespace objects created when this table was loaded.
+ *
+ ******************************************************************************/
+
+void acpi_tb_delete_namespace_by_owner(u32 table_index)
+{
+ acpi_owner_id owner_id;
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.count) {
+ owner_id =
+ acpi_gbl_root_table_list.tables[table_index].owner_id;
+ } else {
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ acpi_ns_delete_namespace_by_owner(owner_id);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_allocate_owner_id
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocates owner_id in table_desc
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_allocate_owner_id(u32 table_index)
+{
+ acpi_status status = AE_BAD_PARAMETER;
+
+ ACPI_FUNCTION_TRACE(tb_allocate_owner_id);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.count) {
+ status = acpi_ut_allocate_owner_id
+ (&(acpi_gbl_root_table_list.tables[table_index].owner_id));
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_release_owner_id
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Releases owner_id in table_desc
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_release_owner_id(u32 table_index)
+{
+ acpi_status status = AE_BAD_PARAMETER;
+
+ ACPI_FUNCTION_TRACE(tb_release_owner_id);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.count) {
+ acpi_ut_release_owner_id(&
+ (acpi_gbl_root_table_list.
+ tables[table_index].owner_id));
+ status = AE_OK;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_owner_id
+ *
+ * PARAMETERS: table_index - Table index
+ * owner_id - Where the table owner_id is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: returns owner_id for the ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id)
+{
+ acpi_status status = AE_BAD_PARAMETER;
+
+ ACPI_FUNCTION_TRACE(tb_get_owner_id);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.count) {
+ *owner_id =
+ acpi_gbl_root_table_list.tables[table_index].owner_id;
+ status = AE_OK;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_is_table_loaded
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Table Loaded Flag
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_is_table_loaded(u32 table_index)
+{
+ u8 is_loaded = FALSE;
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.count) {
+ is_loaded = (u8)
+ (acpi_gbl_root_table_list.tables[table_index].
+ flags & ACPI_TABLE_IS_LOADED);
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return (is_loaded);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_set_table_loaded_flag
+ *
+ * PARAMETERS: table_index - Table index
+ * is_loaded - TRUE if table is loaded, FALSE otherwise
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
+ *
+ ******************************************************************************/
+
+void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded)
+{
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ if (table_index < acpi_gbl_root_table_list.count) {
+ if (is_loaded) {
+ acpi_gbl_root_table_list.tables[table_index].flags |=
+ ACPI_TABLE_IS_LOADED;
+ } else {
+ acpi_gbl_root_table_list.tables[table_index].flags &=
+ ~ACPI_TABLE_IS_LOADED;
+ }
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: tbutils - table utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbutils")
+
+/* Local prototypes */
+static acpi_physical_address
+acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_check_xsdt
+ *
+ * PARAMETERS: address - Pointer to the XSDT
+ *
+ * RETURN: status
+ * AE_OK - XSDT is okay
+ * AE_NO_MEMORY - can't map XSDT
+ * AE_INVALID_TABLE_LENGTH - invalid table length
+ * AE_NULL_ENTRY - XSDT has NULL entry
+ *
+ * DESCRIPTION: validate XSDT
+******************************************************************************/
+
+static acpi_status
+acpi_tb_check_xsdt(acpi_physical_address address)
+{
+ struct acpi_table_header *table;
+ u32 length;
+ u64 xsdt_entry_address;
+ u8 *table_entry;
+ u32 table_count;
+ int i;
+
+ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+ if (!table)
+ return AE_NO_MEMORY;
+
+ length = table->length;
+ acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+ if (length < sizeof(struct acpi_table_header))
+ return AE_INVALID_TABLE_LENGTH;
+
+ table = acpi_os_map_memory(address, length);
+ if (!table)
+ return AE_NO_MEMORY;
+
+ /* Calculate the number of tables described in XSDT */
+ table_count =
+ (u32) ((table->length -
+ sizeof(struct acpi_table_header)) / sizeof(u64));
+ table_entry =
+ ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
+ for (i = 0; i < table_count; i++) {
+ ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry);
+ if (!xsdt_entry_address) {
+ /* XSDT has NULL entry */
+ break;
+ }
+ table_entry += sizeof(u64);
+ }
+ acpi_os_unmap_memory(table, length);
+
+ if (i < table_count)
+ return AE_NULL_ENTRY;
+ else
+ return AE_OK;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_initialize_facs
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global
+ * for accessing the Global Lock and Firmware Waking Vector
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_initialize_facs(void)
+{
+ acpi_status status;
+
+ status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
+ ACPI_CAST_INDIRECT_PTR(struct
+ acpi_table_header,
+ &acpi_gbl_FACS));
+ return status;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_tables_loaded
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: TRUE if required ACPI tables are loaded
+ *
+ * DESCRIPTION: Determine if the minimum required ACPI tables are present
+ * (FADT, FACS, DSDT)
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_tables_loaded(void)
+{
+
+ if (acpi_gbl_root_table_list.count >= 3) {
+ return (TRUE);
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_print_table_header
+ *
+ * PARAMETERS: Address - Table physical address
+ * Header - Table header
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
+ *
+ ******************************************************************************/
+
+void
+acpi_tb_print_table_header(acpi_physical_address address,
+ struct acpi_table_header *header)
+{
+
+ if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) {
+
+ /* FACS only has signature and length fields of common table header */
+
+ ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X",
+ header->signature, (unsigned long)address,
+ header->length));
+ } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
+
+ /* RSDP has no common fields */
+
+ ACPI_INFO((AE_INFO, "RSDP %08lX, %04X (r%d %6.6s)",
+ (unsigned long)address,
+ (ACPI_CAST_PTR(struct acpi_table_rsdp, header)->
+ revision >
+ 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp,
+ header)->length : 20,
+ ACPI_CAST_PTR(struct acpi_table_rsdp,
+ header)->revision,
+ ACPI_CAST_PTR(struct acpi_table_rsdp,
+ header)->oem_id));
+ } else {
+ /* Standard ACPI table with full common header */
+
+ ACPI_INFO((AE_INFO,
+ "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)",
+ header->signature, (unsigned long)address,
+ header->length, header->revision, header->oem_id,
+ header->oem_table_id, header->oem_revision,
+ header->asl_compiler_id,
+ header->asl_compiler_revision));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_validate_checksum
+ *
+ * PARAMETERS: Table - ACPI table to verify
+ * Length - Length of entire table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
+ * exception on bad checksum.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
+{
+ u8 checksum;
+
+ /* Compute the checksum on the table */
+
+ checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
+
+ /* Checksum ok? (should be zero) */
+
+ if (checksum) {
+ ACPI_WARNING((AE_INFO,
+ "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X",
+ table->signature, table->checksum,
+ (u8) (table->checksum - checksum)));
+
+#if (ACPI_CHECKSUM_ABORT)
+
+ return (AE_BAD_CHECKSUM);
+#endif
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_checksum
+ *
+ * PARAMETERS: Buffer - Pointer to memory region to be checked
+ * Length - Length of this memory region
+ *
+ * RETURN: Checksum (u8)
+ *
+ * DESCRIPTION: Calculates circular checksum of memory region.
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_checksum(u8 *buffer, u32 length)
+{
+ u8 sum = 0;
+ u8 *end = buffer + length;
+
+ while (buffer < end) {
+ sum = (u8) (sum + *(buffer++));
+ }
+
+ return sum;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_install_table
+ *
+ * PARAMETERS: Address - Physical address of DSDT or FACS
+ * Flags - Flags
+ * Signature - Table signature, NULL if no need to
+ * match
+ * table_index - Index into root table array
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Install an ACPI table into the global data structure.
+ *
+ ******************************************************************************/
+
+void
+acpi_tb_install_table(acpi_physical_address address,
+ u8 flags, char *signature, u32 table_index)
+{
+ struct acpi_table_header *table;
+
+ if (!address) {
+ ACPI_ERROR((AE_INFO,
+ "Null physical address for ACPI table [%s]",
+ signature));
+ return;
+ }
+
+ /* Map just the table header */
+
+ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+ if (!table) {
+ return;
+ }
+
+ /* If a particular signature is expected, signature must match */
+
+ if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
+ ACPI_ERROR((AE_INFO,
+ "Invalid signature 0x%X for ACPI table [%s]",
+ *ACPI_CAST_PTR(u32, table->signature), signature));
+ goto unmap_and_exit;
+ }
+
+ /* Initialize the table entry */
+
+ acpi_gbl_root_table_list.tables[table_index].address = address;
+ acpi_gbl_root_table_list.tables[table_index].length = table->length;
+ acpi_gbl_root_table_list.tables[table_index].flags = flags;
+
+ ACPI_MOVE_32_TO_32(&
+ (acpi_gbl_root_table_list.tables[table_index].
+ signature), table->signature);
+
+ acpi_tb_print_table_header(address, table);
+
+ if (table_index == ACPI_TABLE_INDEX_DSDT) {
+
+ /* Global integer width is based upon revision of the DSDT */
+
+ acpi_ut_set_integer_width(table->revision);
+ }
+
+ unmap_and_exit:
+ acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_root_table_entry
+ *
+ * PARAMETERS: table_entry - Pointer to the RSDT/XSDT table entry
+ * table_entry_size - sizeof 32 or 64 (RSDT or XSDT)
+ *
+ * RETURN: Physical address extracted from the root table
+ *
+ * DESCRIPTION: Get one root table entry. Handles 32-bit and 64-bit cases on
+ * both 32-bit and 64-bit platforms
+ *
+ * NOTE: acpi_physical_address is 32-bit on 32-bit platforms, 64-bit on
+ * 64-bit platforms.
+ *
+ ******************************************************************************/
+
+static acpi_physical_address
+acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
+{
+ u64 address64;
+
+ /*
+ * Get the table physical address (32-bit for RSDT, 64-bit for XSDT):
+ * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT
+ */
+ if (table_entry_size == sizeof(u32)) {
+ /*
+ * 32-bit platform, RSDT: Return 32-bit table entry
+ * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return
+ */
+ return ((acpi_physical_address)
+ (*ACPI_CAST_PTR(u32, table_entry)));
+ } else {
+ /*
+ * 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return
+ * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit
+ */
+ ACPI_MOVE_64_TO_64(&address64, table_entry);
+
+#if ACPI_MACHINE_WIDTH == 32
+ if (address64 > ACPI_UINT32_MAX) {
+
+ /* Will truncate 64-bit address to 32 bits, issue warning */
+
+ ACPI_WARNING((AE_INFO,
+ "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating",
+ ACPI_FORMAT_UINT64(address64)));
+ }
+#endif
+ return ((acpi_physical_address) (address64));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_parse_root_table
+ *
+ * PARAMETERS: Rsdp - Pointer to the RSDP
+ * Flags - Flags
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to parse the Root System Description
+ * Table (RSDT or XSDT)
+ *
+ * NOTE: Tables are mapped (not copied) for efficiency. The FACS must
+ * be mapped and cannot be copied because it contains the actual
+ * memory location of the ACPI Global Lock.
+ *
+ ******************************************************************************/
+
+acpi_status __init
+acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
+{
+ struct acpi_table_rsdp *rsdp;
+ u32 table_entry_size;
+ u32 i;
+ u32 table_count;
+ struct acpi_table_header *table;
+ acpi_physical_address address;
+ acpi_physical_address uninitialized_var(rsdt_address);
+ u32 length;
+ u8 *table_entry;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(tb_parse_root_table);
+
+ /*
+ * Map the entire RSDP and extract the address of the RSDT or XSDT
+ */
+ rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp));
+ if (!rsdp) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ acpi_tb_print_table_header(rsdp_address,
+ ACPI_CAST_PTR(struct acpi_table_header,
+ rsdp));
+
+ /* Differentiate between RSDT and XSDT root tables */
+
+ if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+ /*
+ * Root table is an XSDT (64-bit physical addresses). We must use the
+ * XSDT if the revision is > 1 and the XSDT pointer is present, as per
+ * the ACPI specification.
+ */
+ address = (acpi_physical_address) rsdp->xsdt_physical_address;
+ table_entry_size = sizeof(u64);
+ rsdt_address = (acpi_physical_address)
+ rsdp->rsdt_physical_address;
+ } else {
+ /* Root table is an RSDT (32-bit physical addresses) */
+
+ address = (acpi_physical_address) rsdp->rsdt_physical_address;
+ table_entry_size = sizeof(u32);
+ }
+
+ /*
+ * It is not possible to map more than one entry in some environments,
+ * so unmap the RSDP here before mapping other tables
+ */
+ acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
+
+ if (table_entry_size == sizeof(u64)) {
+ if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) {
+ /* XSDT has NULL entry, RSDT is used */
+ address = rsdt_address;
+ table_entry_size = sizeof(u32);
+ ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, "
+ "using RSDT"));
+ }
+ }
+ /* Map the RSDT/XSDT table header to get the full table length */
+
+ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+ if (!table) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ acpi_tb_print_table_header(address, table);
+
+ /* Get the length of the full table, verify length and map entire table */
+
+ length = table->length;
+ acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+
+ if (length < sizeof(struct acpi_table_header)) {
+ ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT",
+ length));
+ return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
+ }
+
+ table = acpi_os_map_memory(address, length);
+ if (!table) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Validate the root table checksum */
+
+ status = acpi_tb_verify_checksum(table, length);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_unmap_memory(table, length);
+ return_ACPI_STATUS(status);
+ }
+
+ /* Calculate the number of tables described in the root table */
+
+ table_count =
+ (u32) ((table->length -
+ sizeof(struct acpi_table_header)) / table_entry_size);
+
+ /*
+ * First two entries in the table array are reserved for the DSDT and FACS,
+ * which are not actually present in the RSDT/XSDT - they come from the FADT
+ */
+ table_entry =
+ ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
+ acpi_gbl_root_table_list.count = 2;
+
+ /*
+ * Initialize the root table array from the RSDT/XSDT
+ */
+ for (i = 0; i < table_count; i++) {
+ if (acpi_gbl_root_table_list.count >=
+ acpi_gbl_root_table_list.size) {
+
+ /* There is no more room in the root table array, attempt resize */
+
+ status = acpi_tb_resize_root_table_list();
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO,
+ "Truncating %u table entries!",
+ (unsigned)
+ (acpi_gbl_root_table_list.size -
+ acpi_gbl_root_table_list.
+ count)));
+ break;
+ }
+ }
+
+ /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */
+
+ acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+ address =
+ acpi_tb_get_root_table_entry(table_entry, table_entry_size);
+
+ table_entry += table_entry_size;
+ acpi_gbl_root_table_list.count++;
+ }
+
+ /*
+ * It is not possible to map more than one entry in some environments,
+ * so unmap the root table here before mapping other tables
+ */
+ acpi_os_unmap_memory(table, length);
+
+ /*
+ * Complete the initialization of the root table array by examining
+ * the header of each table
+ */
+ for (i = 2; i < acpi_gbl_root_table_list.count; i++) {
+ acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
+ address, flags, NULL, i);
+
+ /* Special case for FADT - get the DSDT and FACS */
+
+ if (ACPI_COMPARE_NAME
+ (&acpi_gbl_root_table_list.tables[i].signature,
+ ACPI_SIG_FADT)) {
+ acpi_tb_parse_fadt(i, flags);
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: tbxface - Public interfaces to the ACPI subsystem
+ * ACPI table oriented interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbxface")
+
+/* Local prototypes */
+static acpi_status acpi_tb_load_namespace(void);
+
+static int no_auto_ssdt;
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_allocate_root_table
+ *
+ * PARAMETERS: initial_table_count - Size of initial_table_array, in number of
+ * struct acpi_table_desc structures
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and
+ * acpi_initialize_tables.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_allocate_root_table(u32 initial_table_count)
+{
+
+ acpi_gbl_root_table_list.size = initial_table_count;
+ acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE;
+
+ return (acpi_tb_resize_root_table_list());
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_initialize_tables
+ *
+ * PARAMETERS: initial_table_array - Pointer to an array of pre-allocated
+ * struct acpi_table_desc structures. If NULL, the
+ * array is dynamically allocated.
+ * initial_table_count - Size of initial_table_array, in number of
+ * struct acpi_table_desc structures
+ * allow_realloc - Flag to tell Table Manager if resize of
+ * pre-allocated array is allowed. Ignored
+ * if initial_table_array is NULL.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT.
+ *
+ * NOTE: Allows static allocation of the initial table array in order
+ * to avoid the use of dynamic memory in confined environments
+ * such as the kernel boot sequence where it may not be available.
+ *
+ * If the host OS memory managers are initialized, use NULL for
+ * initial_table_array, and the table will be dynamically allocated.
+ *
+ ******************************************************************************/
+
+acpi_status __init
+acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
+ u32 initial_table_count, u8 allow_resize)
+{
+ acpi_physical_address rsdp_address;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_initialize_tables);
+
+ /*
+ * Set up the Root Table Array
+ * Allocate the table array if requested
+ */
+ if (!initial_table_array) {
+ status = acpi_allocate_root_table(initial_table_count);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ /* Root Table Array has been statically allocated by the host */
+
+ ACPI_MEMSET(initial_table_array, 0,
+ (acpi_size) initial_table_count *
+ sizeof(struct acpi_table_desc));
+
+ acpi_gbl_root_table_list.tables = initial_table_array;
+ acpi_gbl_root_table_list.size = initial_table_count;
+ acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN;
+ if (allow_resize) {
+ acpi_gbl_root_table_list.flags |=
+ ACPI_ROOT_ALLOW_RESIZE;
+ }
+ }
+
+ /* Get the address of the RSDP */
+
+ rsdp_address = acpi_os_get_root_pointer();
+ if (!rsdp_address) {
+ return_ACPI_STATUS(AE_NOT_FOUND);
+ }
+
+ /*
+ * Get the root table (RSDT or XSDT) and extract all entries to the local
+ * Root Table Array. This array contains the information of the RSDT/XSDT
+ * in a common, more useable format.
+ */
+ status =
+ acpi_tb_parse_root_table(rsdp_address, ACPI_TABLE_ORIGIN_MAPPED);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_reallocate_root_table
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
+ * root list from the previously provided scratch area. Should
+ * be called once dynamic memory allocation is available in the
+ * kernel
+ *
+ ******************************************************************************/
+acpi_status acpi_reallocate_root_table(void)
+{
+ struct acpi_table_desc *tables;
+ acpi_size new_size;
+
+ ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
+
+ /*
+ * Only reallocate the root table if the host provided a static buffer
+ * for the table array in the call to acpi_initialize_tables.
+ */
+ if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ new_size = ((acpi_size) acpi_gbl_root_table_list.count +
+ ACPI_ROOT_TABLE_SIZE_INCREMENT) *
+ sizeof(struct acpi_table_desc);
+
+ /* Create new array and copy the old array */
+
+ tables = ACPI_ALLOCATE_ZEROED(new_size);
+ if (!tables) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size);
+
+ acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count;
+ acpi_gbl_root_table_list.tables = tables;
+ acpi_gbl_root_table_list.flags =
+ ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_load_table
+ *
+ * PARAMETERS: table_ptr - pointer to a buffer containing the entire
+ * table to be loaded
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to load a table from the caller's
+ * buffer. The buffer must contain an entire ACPI Table including
+ * a valid header. The header fields will be verified, and if it
+ * is determined that the table is invalid, the call will fail.
+ *
+ ******************************************************************************/
+acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
+{
+ acpi_status status;
+ u32 table_index;
+ struct acpi_table_desc table_desc;
+
+ if (!table_ptr)
+ return AE_BAD_PARAMETER;
+
+ ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
+ table_desc.pointer = table_ptr;
+ table_desc.length = table_ptr->length;
+ table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN;
+
+ /*
+ * Install the new table into the local data structures
+ */
+ status = acpi_tb_add_table(&table_desc, &table_index);
+ if (ACPI_FAILURE(status)) {
+ return status;
+ }
+ status = acpi_ns_load_table(table_index, acpi_gbl_root_node);
+ return status;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_load_table)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_get_table_header
+ *
+ * PARAMETERS: Signature - ACPI signature of needed table
+ * Instance - Which instance (for SSDTs)
+ * out_table_header - The pointer to the table header to fill
+ *
+ * RETURN: Status and pointer to mapped table header
+ *
+ * DESCRIPTION: Finds an ACPI table header.
+ *
+ * NOTE: Caller is responsible in unmapping the header with
+ * acpi_os_unmap_memory
+ *
+ *****************************************************************************/
+acpi_status
+acpi_get_table_header(char *signature,
+ u32 instance, struct acpi_table_header *out_table_header)
+{
+ u32 i;
+ u32 j;
+ struct acpi_table_header *header;
+
+ /* Parameter validation */
+
+ if (!signature || !out_table_header) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Walk the root table list
+ */
+ for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) {
+ if (!ACPI_COMPARE_NAME
+ (&(acpi_gbl_root_table_list.tables[i].signature),
+ signature)) {
+ continue;
+ }
+
+ if (++j < instance) {
+ continue;
+ }
+
+ if (!acpi_gbl_root_table_list.tables[i].pointer) {
+ if ((acpi_gbl_root_table_list.tables[i].
+ flags & ACPI_TABLE_ORIGIN_MASK) ==
+ ACPI_TABLE_ORIGIN_MAPPED) {
+ header =
+ acpi_os_map_memory(acpi_gbl_root_table_list.
+ tables[i].address,
+ sizeof(struct
+ acpi_table_header));
+ if (!header) {
+ return AE_NO_MEMORY;
+ }
+ ACPI_MEMCPY(out_table_header, header,
+ sizeof(struct acpi_table_header));
+ acpi_os_unmap_memory(header,
+ sizeof(struct
+ acpi_table_header));
+ } else {
+ return AE_NOT_FOUND;
+ }
+ } else {
+ ACPI_MEMCPY(out_table_header,
+ acpi_gbl_root_table_list.tables[i].pointer,
+ sizeof(struct acpi_table_header));
+ }
+ return (AE_OK);
+ }
+
+ return (AE_NOT_FOUND);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_table_header)
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_unload_table_id
+ *
+ * PARAMETERS: id - Owner ID of the table to be removed.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This routine is used to force the unload of a table (by id)
+ *
+ ******************************************************************************/
+acpi_status acpi_unload_table_id(acpi_owner_id id)
+{
+ int i;
+ acpi_status status = AE_NOT_EXIST;
+
+ ACPI_FUNCTION_TRACE(acpi_unload_table_id);
+
+ /* Find table in the global table list */
+ for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+ if (id != acpi_gbl_root_table_list.tables[i].owner_id) {
+ continue;
+ }
+ /*
+ * Delete all namespace objects owned by this table. Note that these
+ * objects can appear anywhere in the namespace by virtue of the AML
+ * "Scope" operator. Thus, we need to track ownership by an ID, not
+ * simply a position within the hierarchy
+ */
+ acpi_tb_delete_namespace_by_owner(i);
+ status = acpi_tb_release_owner_id(i);
+ acpi_tb_set_table_loaded_flag(i, FALSE);
+ break;
+ }
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_table
+ *
+ * PARAMETERS: Signature - ACPI signature of needed table
+ * Instance - Which instance (for SSDTs)
+ * out_table - Where the pointer to the table is returned
+ *
+ * RETURN: Status and pointer to table
+ *
+ * DESCRIPTION: Finds and verifies an ACPI table.
+ *
+ *****************************************************************************/
+acpi_status
+acpi_get_table(char *signature,
+ u32 instance, struct acpi_table_header **out_table)
+{
+ u32 i;
+ u32 j;
+ acpi_status status;
+
+ /* Parameter validation */
+
+ if (!signature || !out_table) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Walk the root table list
+ */
+ for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) {
+ if (!ACPI_COMPARE_NAME
+ (&(acpi_gbl_root_table_list.tables[i].signature),
+ signature)) {
+ continue;
+ }
+
+ if (++j < instance) {
+ continue;
+ }
+
+ status =
+ acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
+ if (ACPI_SUCCESS(status)) {
+ *out_table = acpi_gbl_root_table_list.tables[i].pointer;
+ }
+
+ if (!acpi_gbl_permanent_mmap) {
+ acpi_gbl_root_table_list.tables[i].pointer = NULL;
+ }
+
+ return (status);
+ }
+
+ return (AE_NOT_FOUND);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_table)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_table_by_index
+ *
+ * PARAMETERS: table_index - Table index
+ * Table - Where the pointer to the table is returned
+ *
+ * RETURN: Status and pointer to the table
+ *
+ * DESCRIPTION: Obtain a table by an index into the global table list.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_table_by_index);
+
+ /* Parameter validation */
+
+ if (!table) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+ /* Validate index */
+
+ if (table_index >= acpi_gbl_root_table_list.count) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (!acpi_gbl_root_table_list.tables[table_index].pointer) {
+
+ /* Table is not mapped, map it */
+
+ status =
+ acpi_tb_verify_table(&acpi_gbl_root_table_list.
+ tables[table_index]);
+ if (ACPI_FAILURE(status)) {
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ *table = acpi_gbl_root_table_list.tables[table_index].pointer;
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_load_namespace
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
+ * the RSDT/XSDT.
+ *
+ ******************************************************************************/
+static acpi_status acpi_tb_load_namespace(void)
+{
+ acpi_status status;
+ struct acpi_table_header *table;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(tb_load_namespace);
+
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+ /*
+ * Load the namespace. The DSDT is required, but any SSDT and PSDT tables
+ * are optional.
+ */
+ if (!acpi_gbl_root_table_list.count ||
+ !ACPI_COMPARE_NAME(&
+ (acpi_gbl_root_table_list.
+ tables[ACPI_TABLE_INDEX_DSDT].signature),
+ ACPI_SIG_DSDT)
+ ||
+ ACPI_FAILURE(acpi_tb_verify_table
+ (&acpi_gbl_root_table_list.
+ tables[ACPI_TABLE_INDEX_DSDT]))) {
+ status = AE_NO_ACPI_TABLES;
+ goto unlock_and_exit;
+ }
+
+ /*
+ * Find DSDT table
+ */
+ status =
+ acpi_os_table_override(acpi_gbl_root_table_list.
+ tables[ACPI_TABLE_INDEX_DSDT].pointer,
+ &table);
+ if (ACPI_SUCCESS(status) && table) {
+ /*
+ * DSDT table has been found
+ */
+ acpi_tb_delete_table(&acpi_gbl_root_table_list.
+ tables[ACPI_TABLE_INDEX_DSDT]);
+ acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer =
+ table;
+ acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length =
+ table->length;
+ acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags =
+ ACPI_TABLE_ORIGIN_UNKNOWN;
+
+ ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS"));
+ acpi_tb_print_table_header(0, table);
+
+ if (no_auto_ssdt == 0) {
+ printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"\n");
+ }
+ }
+
+ status =
+ acpi_tb_verify_table(&acpi_gbl_root_table_list.
+ tables[ACPI_TABLE_INDEX_DSDT]);
+ if (ACPI_FAILURE(status)) {
+
+ /* A valid DSDT is required */
+
+ status = AE_NO_ACPI_TABLES;
+ goto unlock_and_exit;
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+
+ /*
+ * Load and parse tables.
+ */
+ status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Load any SSDT or PSDT tables. Note: Loop leaves tables locked
+ */
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+ if ((!ACPI_COMPARE_NAME
+ (&(acpi_gbl_root_table_list.tables[i].signature),
+ ACPI_SIG_SSDT)
+ &&
+ !ACPI_COMPARE_NAME(&
+ (acpi_gbl_root_table_list.tables[i].
+ signature), ACPI_SIG_PSDT))
+ ||
+ ACPI_FAILURE(acpi_tb_verify_table
+ (&acpi_gbl_root_table_list.tables[i]))) {
+ continue;
+ }
+
+ if (no_auto_ssdt) {
+ printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
+ continue;
+ }
+
+ /* Ignore errors while loading tables, get as many as possible */
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ (void)acpi_ns_load_table(i, acpi_gbl_root_node);
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
+
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_load_tables
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT
+ *
+ ******************************************************************************/
+
+acpi_status acpi_load_tables(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_load_tables);
+
+ /*
+ * Load the namespace from the tables
+ */
+ status = acpi_tb_load_namespace();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "While loading namespace from ACPI tables"));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_load_tables)
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_install_table_handler
+ *
+ * PARAMETERS: Handler - Table event handler
+ * Context - Value passed to the handler on each event
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install table event handler
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_table_handler(acpi_tbl_handler handler, void *context)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_install_table_handler);
+
+ if (!handler) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Don't allow more than one handler */
+
+ if (acpi_gbl_table_handler) {
+ status = AE_ALREADY_EXISTS;
+ goto cleanup;
+ }
+
+ /* Install the handler */
+
+ acpi_gbl_table_handler = handler;
+ acpi_gbl_table_handler_context = context;
+
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_table_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_remove_table_handler
+ *
+ * PARAMETERS: Handler - Table event handler that was installed
+ * previously.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Remove table event handler
+ *
+ ******************************************************************************/
+acpi_status acpi_remove_table_handler(acpi_tbl_handler handler)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_remove_table_handler);
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Make sure that the installed handler is the same */
+
+ if (!handler || handler != acpi_gbl_table_handler) {
+ status = AE_BAD_PARAMETER;
+ goto cleanup;
+ }
+
+ /* Remove the handler */
+
+ acpi_gbl_table_handler = NULL;
+
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_table_handler)
+
+
+static int __init acpi_no_auto_ssdt_setup(char *s) {
+
+ printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
+
+ no_auto_ssdt = 1;
+
+ return 1;
+}
+
+__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: tbxfroot - Find the root ACPI table (RSDT)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_TABLES
+ACPI_MODULE_NAME("tbxfroot")
+
+/* Local prototypes */
+static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length);
+
+static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_validate_rsdp
+ *
+ * PARAMETERS: Rsdp - Pointer to unvalidated RSDP
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Validate the RSDP (ptr)
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * The signature and checksum must both be correct
+ *
+ * Note: Sometimes there exists more than one RSDP in memory; the valid
+ * RSDP has a valid checksum, all others have an invalid checksum.
+ */
+ if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1)
+ != 0) {
+
+ /* Nope, BAD Signature */
+
+ return (AE_BAD_SIGNATURE);
+ }
+
+ /* Check the standard checksum */
+
+ if (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
+ return (AE_BAD_CHECKSUM);
+ }
+
+ /* Check extended checksum if table version >= 2 */
+
+ if ((rsdp->revision >= 2) &&
+ (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) {
+ return (AE_BAD_CHECKSUM);
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_find_root_pointer
+ *
+ * PARAMETERS: table_address - Where the table pointer is returned
+ *
+ * RETURN: Status, RSDP physical address
+ *
+ * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
+ * pointer structure. If it is found, set *RSDP to point to it.
+ *
+ * NOTE1: The RSDP must be either in the first 1_k of the Extended
+ * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.)
+ * Only a 32-bit physical address is necessary.
+ *
+ * NOTE2: This function is always available, regardless of the
+ * initialization state of the rest of ACPI.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_find_root_pointer(acpi_size *table_address)
+{
+ u8 *table_ptr;
+ u8 *mem_rover;
+ u32 physical_address;
+
+ ACPI_FUNCTION_TRACE(acpi_find_root_pointer);
+
+ /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */
+
+ table_ptr = acpi_os_map_memory((acpi_physical_address)
+ ACPI_EBDA_PTR_LOCATION,
+ ACPI_EBDA_PTR_LENGTH);
+ if (!table_ptr) {
+ ACPI_ERROR((AE_INFO,
+ "Could not map memory at %8.8X for length %X",
+ ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH));
+
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ ACPI_MOVE_16_TO_32(&physical_address, table_ptr);
+
+ /* Convert segment part to physical address */
+
+ physical_address <<= 4;
+ acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH);
+
+ /* EBDA present? */
+
+ if (physical_address > 0x400) {
+ /*
+ * 1b) Search EBDA paragraphs (EBDA is required to be a
+ * minimum of 1_k length)
+ */
+ table_ptr = acpi_os_map_memory((acpi_physical_address)
+ physical_address,
+ ACPI_EBDA_WINDOW_SIZE);
+ if (!table_ptr) {
+ ACPI_ERROR((AE_INFO,
+ "Could not map memory at %8.8X for length %X",
+ physical_address, ACPI_EBDA_WINDOW_SIZE));
+
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ mem_rover =
+ acpi_tb_scan_memory_for_rsdp(table_ptr,
+ ACPI_EBDA_WINDOW_SIZE);
+ acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE);
+
+ if (mem_rover) {
+
+ /* Return the physical address */
+
+ physical_address +=
+ (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
+
+ *table_address = physical_address;
+ return_ACPI_STATUS(AE_OK);
+ }
+ }
+
+ /*
+ * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh
+ */
+ table_ptr = acpi_os_map_memory((acpi_physical_address)
+ ACPI_HI_RSDP_WINDOW_BASE,
+ ACPI_HI_RSDP_WINDOW_SIZE);
+
+ if (!table_ptr) {
+ ACPI_ERROR((AE_INFO,
+ "Could not map memory at %8.8X for length %X",
+ ACPI_HI_RSDP_WINDOW_BASE,
+ ACPI_HI_RSDP_WINDOW_SIZE));
+
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ mem_rover =
+ acpi_tb_scan_memory_for_rsdp(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
+ acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
+
+ if (mem_rover) {
+
+ /* Return the physical address */
+
+ physical_address = (u32)
+ (ACPI_HI_RSDP_WINDOW_BASE +
+ ACPI_PTR_DIFF(mem_rover, table_ptr));
+
+ *table_address = physical_address;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* A valid RSDP was not found */
+
+ ACPI_ERROR((AE_INFO, "A valid RSDP was not found"));
+ return_ACPI_STATUS(AE_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_scan_memory_for_rsdp
+ *
+ * PARAMETERS: start_address - Starting pointer for search
+ * Length - Maximum length to search
+ *
+ * RETURN: Pointer to the RSDP if found, otherwise NULL.
+ *
+ * DESCRIPTION: Search a block of memory for the RSDP signature
+ *
+ ******************************************************************************/
+static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
+{
+ acpi_status status;
+ u8 *mem_rover;
+ u8 *end_address;
+
+ ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp);
+
+ end_address = start_address + length;
+
+ /* Search from given start address for the requested length */
+
+ for (mem_rover = start_address; mem_rover < end_address;
+ mem_rover += ACPI_RSDP_SCAN_STEP) {
+
+ /* The RSDP signature and checksum must both be correct */
+
+ status =
+ acpi_tb_validate_rsdp(ACPI_CAST_PTR
+ (struct acpi_table_rsdp, mem_rover));
+ if (ACPI_SUCCESS(status)) {
+
+ /* Sig and checksum valid, we have found a real RSDP */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "RSDP located at physical address %p\n",
+ mem_rover));
+ return_PTR(mem_rover);
+ }
+
+ /* No sig match or bad checksum, keep searching */
+ }
+
+ /* Searched entire block, no RSDP was found */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Searched entire block from %p, valid RSDP was not found\n",
+ start_address));
+ return_PTR(NULL);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utalloc - local memory allocation routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acdebug.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utalloc")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_caches
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create all local caches
+ *
+ ******************************************************************************/
+acpi_status acpi_ut_create_caches(void)
+{
+ acpi_status status;
+
+ /* Object Caches, for frequently used objects */
+
+ status =
+ acpi_os_create_cache("Acpi-Namespace",
+ sizeof(struct acpi_namespace_node),
+ ACPI_MAX_NAMESPACE_CACHE_DEPTH,
+ &acpi_gbl_namespace_cache);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status =
+ acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
+ ACPI_MAX_STATE_CACHE_DEPTH,
+ &acpi_gbl_state_cache);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status =
+ acpi_os_create_cache("Acpi-Parse",
+ sizeof(struct acpi_parse_obj_common),
+ ACPI_MAX_PARSE_CACHE_DEPTH,
+ &acpi_gbl_ps_node_cache);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status =
+ acpi_os_create_cache("Acpi-ParseExt",
+ sizeof(struct acpi_parse_obj_named),
+ ACPI_MAX_EXTPARSE_CACHE_DEPTH,
+ &acpi_gbl_ps_node_ext_cache);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status =
+ acpi_os_create_cache("Acpi-Operand",
+ sizeof(union acpi_operand_object),
+ ACPI_MAX_OBJECT_CACHE_DEPTH,
+ &acpi_gbl_operand_cache);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+ /* Memory allocation lists */
+
+ status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status =
+ acpi_ut_create_list("Acpi-Namespace",
+ sizeof(struct acpi_namespace_node),
+ &acpi_gbl_ns_node_list);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+#endif
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_delete_caches
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Purge and delete all local caches
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_delete_caches(void)
+{
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ char buffer[7];
+
+ if (acpi_gbl_display_final_mem_stats) {
+ ACPI_STRCPY(buffer, "MEMORY");
+ (void)acpi_db_display_statistics(buffer);
+ }
+#endif
+
+ (void)acpi_os_delete_cache(acpi_gbl_namespace_cache);
+ acpi_gbl_namespace_cache = NULL;
+
+ (void)acpi_os_delete_cache(acpi_gbl_state_cache);
+ acpi_gbl_state_cache = NULL;
+
+ (void)acpi_os_delete_cache(acpi_gbl_operand_cache);
+ acpi_gbl_operand_cache = NULL;
+
+ (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache);
+ acpi_gbl_ps_node_cache = NULL;
+
+ (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
+ acpi_gbl_ps_node_ext_cache = NULL;
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+ /* Debug only - display leftover memory allocation, if any */
+
+ acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
+
+ /* Free memory lists */
+
+ ACPI_FREE(acpi_gbl_global_list);
+ acpi_gbl_global_list = NULL;
+
+ ACPI_FREE(acpi_gbl_ns_node_list);
+ acpi_gbl_ns_node_list = NULL;
+#endif
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_validate_buffer
+ *
+ * PARAMETERS: Buffer - Buffer descriptor to be validated
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer)
+{
+
+ /* Obviously, the structure pointer must be valid */
+
+ if (!buffer) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Special semantics for the length */
+
+ if ((buffer->length == ACPI_NO_BUFFER) ||
+ (buffer->length == ACPI_ALLOCATE_BUFFER) ||
+ (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) {
+ return (AE_OK);
+ }
+
+ /* Length is valid, the buffer pointer must be also */
+
+ if (!buffer->pointer) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_initialize_buffer
+ *
+ * PARAMETERS: Buffer - Buffer to be validated
+ * required_length - Length needed
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Validate that the buffer is of the required length or
+ * allocate a new buffer. Returned buffer is always zeroed.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
+ acpi_size required_length)
+{
+ acpi_size input_buffer_length;
+
+ /* Parameter validation */
+
+ if (!buffer || !required_length) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Buffer->Length is used as both an input and output parameter. Get the
+ * input actual length and set the output required buffer length.
+ */
+ input_buffer_length = buffer->length;
+ buffer->length = required_length;
+
+ /*
+ * The input buffer length contains the actual buffer length, or the type
+ * of buffer to be allocated by this routine.
+ */
+ switch (input_buffer_length) {
+ case ACPI_NO_BUFFER:
+
+ /* Return the exception (and the required buffer length) */
+
+ return (AE_BUFFER_OVERFLOW);
+
+ case ACPI_ALLOCATE_BUFFER:
+
+ /* Allocate a new buffer */
+
+ buffer->pointer = acpi_os_allocate(required_length);
+ break;
+
+ case ACPI_ALLOCATE_LOCAL_BUFFER:
+
+ /* Allocate a new buffer with local interface to allow tracking */
+
+ buffer->pointer = ACPI_ALLOCATE(required_length);
+ break;
+
+ default:
+
+ /* Existing buffer: Validate the size of the buffer */
+
+ if (input_buffer_length < required_length) {
+ return (AE_BUFFER_OVERFLOW);
+ }
+ break;
+ }
+
+ /* Validate allocation from above or input buffer pointer */
+
+ if (!buffer->pointer) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Have a valid buffer, clear it */
+
+ ACPI_MEMSET(buffer->pointer, 0, required_length);
+ return (AE_OK);
+}
+
+#ifdef NOT_USED_BY_LINUX
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_allocate
+ *
+ * PARAMETERS: Size - Size of the allocation
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN: Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of malloc.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate(acpi_size size,
+ u32 component, const char *module, u32 line)
+{
+ void *allocation;
+
+ ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
+
+ /* Check for an inadvertent size of zero bytes */
+
+ if (!size) {
+ ACPI_WARNING((module, line,
+ "Attempt to allocate zero bytes, allocating 1 byte"));
+ size = 1;
+ }
+
+ allocation = acpi_os_allocate(size);
+ if (!allocation) {
+
+ /* Report allocation error */
+
+ ACPI_WARNING((module, line,
+ "Could not allocate size %X", (u32) size));
+
+ return_PTR(NULL);
+ }
+
+ return_PTR(allocation);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_allocate_zeroed
+ *
+ * PARAMETERS: Size - Size of the allocation
+ * Component - Component type of caller
+ * Module - Source file name of caller
+ * Line - Line number of caller
+ *
+ * RETURN: Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate_zeroed(acpi_size size,
+ u32 component, const char *module, u32 line)
+{
+ void *allocation;
+
+ ACPI_FUNCTION_ENTRY();
+
+ allocation = acpi_ut_allocate(size, component, module, line);
+ if (allocation) {
+
+ /* Clear the memory block */
+
+ ACPI_MEMSET(allocation, 0, size);
+ }
+
+ return (allocation);
+}
+#endif
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utcopy - Internal to external object translation utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utcopy")
+
+/* Local prototypes */
+static acpi_status
+acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
+ union acpi_object *external_object,
+ u8 * data_space, acpi_size * buffer_space_used);
+
+static acpi_status
+acpi_ut_copy_ielement_to_ielement(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state,
+ void *context);
+
+static acpi_status
+acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
+ u8 * buffer, acpi_size * space_used);
+
+static acpi_status
+acpi_ut_copy_esimple_to_isimple(union acpi_object *user_obj,
+ union acpi_operand_object **return_obj);
+
+static acpi_status
+acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
+ union acpi_operand_object **internal_object);
+
+static acpi_status
+acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
+ union acpi_operand_object *dest_desc);
+
+static acpi_status
+acpi_ut_copy_ielement_to_eelement(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state,
+ void *context);
+
+static acpi_status
+acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
+ union acpi_operand_object *dest_obj,
+ struct acpi_walk_state *walk_state);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_isimple_to_esimple
+ *
+ * PARAMETERS: internal_object - Source object to be copied
+ * external_object - Where to return the copied object
+ * data_space - Where object data is returned (such as
+ * buffer and string data)
+ * buffer_space_used - Length of data_space that was used
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to copy a simple internal object to
+ * an external object.
+ *
+ * The data_space buffer is assumed to have sufficient space for
+ * the object.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
+ union acpi_object *external_object,
+ u8 * data_space, acpi_size * buffer_space_used)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple);
+
+ *buffer_space_used = 0;
+
+ /*
+ * Check for NULL object case (could be an uninitialized
+ * package element)
+ */
+ if (!internal_object) {
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Always clear the external object */
+
+ ACPI_MEMSET(external_object, 0, sizeof(union acpi_object));
+
+ /*
+ * In general, the external object will be the same type as
+ * the internal object
+ */
+ external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
+
+ /* However, only a limited number of external types are supported */
+
+ switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
+ case ACPI_TYPE_STRING:
+
+ external_object->string.pointer = (char *)data_space;
+ external_object->string.length = internal_object->string.length;
+ *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
+ internal_object->
+ string.
+ length + 1);
+
+ ACPI_MEMCPY((void *)data_space,
+ (void *)internal_object->string.pointer,
+ (acpi_size) internal_object->string.length + 1);
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ external_object->buffer.pointer = data_space;
+ external_object->buffer.length = internal_object->buffer.length;
+ *buffer_space_used =
+ ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string.
+ length);
+
+ ACPI_MEMCPY((void *)data_space,
+ (void *)internal_object->buffer.pointer,
+ internal_object->buffer.length);
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ external_object->integer.value = internal_object->integer.value;
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ /* This is an object reference. */
+
+ switch (internal_object->reference.class) {
+ case ACPI_REFCLASS_NAME:
+
+ /*
+ * For namepath, return the object handle ("reference")
+ * We are referring to the namespace node
+ */
+ external_object->reference.handle =
+ internal_object->reference.node;
+ external_object->reference.actual_type =
+ acpi_ns_get_type(internal_object->reference.node);
+ break;
+
+ default:
+
+ /* All other reference types are unsupported */
+
+ return_ACPI_STATUS(AE_TYPE);
+ }
+ break;
+
+ case ACPI_TYPE_PROCESSOR:
+
+ external_object->processor.proc_id =
+ internal_object->processor.proc_id;
+ external_object->processor.pblk_address =
+ internal_object->processor.address;
+ external_object->processor.pblk_length =
+ internal_object->processor.length;
+ break;
+
+ case ACPI_TYPE_POWER:
+
+ external_object->power_resource.system_level =
+ internal_object->power_resource.system_level;
+
+ external_object->power_resource.resource_order =
+ internal_object->power_resource.resource_order;
+ break;
+
+ default:
+ /*
+ * There is no corresponding external object type
+ */
+ ACPI_ERROR((AE_INFO,
+ "Unsupported object type, cannot convert to external object: %s",
+ acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
+ (internal_object))));
+
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ielement_to_eelement
+ *
+ * PARAMETERS: acpi_pkg_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy one package element to another package element
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_ielement_to_eelement(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state,
+ void *context)
+{
+ acpi_status status = AE_OK;
+ struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
+ acpi_size object_space;
+ u32 this_index;
+ union acpi_object *target_object;
+
+ ACPI_FUNCTION_ENTRY();
+
+ this_index = state->pkg.index;
+ target_object = (union acpi_object *)
+ &((union acpi_object *)(state->pkg.dest_object))->package.
+ elements[this_index];
+
+ switch (object_type) {
+ case ACPI_COPY_TYPE_SIMPLE:
+
+ /*
+ * This is a simple or null object
+ */
+ status = acpi_ut_copy_isimple_to_esimple(source_object,
+ target_object,
+ info->free_space,
+ &object_space);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ break;
+
+ case ACPI_COPY_TYPE_PACKAGE:
+
+ /*
+ * Build the package object
+ */
+ target_object->type = ACPI_TYPE_PACKAGE;
+ target_object->package.count = source_object->package.count;
+ target_object->package.elements =
+ ACPI_CAST_PTR(union acpi_object, info->free_space);
+
+ /*
+ * Pass the new package object back to the package walk routine
+ */
+ state->pkg.this_target_obj = target_object;
+
+ /*
+ * Save space for the array of objects (Package elements)
+ * update the buffer length counter
+ */
+ object_space = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
+ target_object->
+ package.count *
+ sizeof(union
+ acpi_object));
+ break;
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ info->free_space += object_space;
+ info->length += object_space;
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ipackage_to_epackage
+ *
+ * PARAMETERS: internal_object - Pointer to the object we are returning
+ * Buffer - Where the object is returned
+ * space_used - Where the object length is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to place a package object in a user
+ * buffer. A package object by definition contains other objects.
+ *
+ * The buffer is assumed to have sufficient space for the object.
+ * The caller must have verified the buffer length needed using the
+ * acpi_ut_get_object_size function before calling this function.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
+ u8 * buffer, acpi_size * space_used)
+{
+ union acpi_object *external_object;
+ acpi_status status;
+ struct acpi_pkg_info info;
+
+ ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage);
+
+ /*
+ * First package at head of the buffer
+ */
+ external_object = ACPI_CAST_PTR(union acpi_object, buffer);
+
+ /*
+ * Free space begins right after the first package
+ */
+ info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
+ info.free_space =
+ buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
+ info.object_space = 0;
+ info.num_packages = 1;
+
+ external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
+ external_object->package.count = internal_object->package.count;
+ external_object->package.elements = ACPI_CAST_PTR(union acpi_object,
+ info.free_space);
+
+ /*
+ * Leave room for an array of ACPI_OBJECTS in the buffer
+ * and move the free space past it
+ */
+ info.length += (acpi_size) external_object->package.count *
+ ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
+ info.free_space += external_object->package.count *
+ ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
+
+ status = acpi_ut_walk_package_tree(internal_object, external_object,
+ acpi_ut_copy_ielement_to_eelement,
+ &info);
+
+ *space_used = info.length;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_iobject_to_eobject
+ *
+ * PARAMETERS: internal_object - The internal object to be converted
+ * buffer_ptr - Where the object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to build an API object to be returned to
+ * the caller.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object,
+ struct acpi_buffer *ret_buffer)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject);
+
+ if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) {
+ /*
+ * Package object: Copy all subobjects (including
+ * nested packages)
+ */
+ status = acpi_ut_copy_ipackage_to_epackage(internal_object,
+ ret_buffer->pointer,
+ &ret_buffer->length);
+ } else {
+ /*
+ * Build a simple object (no nested objects)
+ */
+ status = acpi_ut_copy_isimple_to_esimple(internal_object,
+ ACPI_CAST_PTR(union
+ acpi_object,
+ ret_buffer->
+ pointer),
+ ACPI_ADD_PTR(u8,
+ ret_buffer->
+ pointer,
+ ACPI_ROUND_UP_TO_NATIVE_WORD
+ (sizeof
+ (union
+ acpi_object))),
+ &ret_buffer->length);
+ /*
+ * build simple does not include the object size in the length
+ * so we add it in here
+ */
+ ret_buffer->length += sizeof(union acpi_object);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_esimple_to_isimple
+ *
+ * PARAMETERS: external_object - The external object to be converted
+ * ret_internal_object - Where the internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function copies an external object to an internal one.
+ * NOTE: Pointers can be copied, we don't need to copy data.
+ * (The pointers have to be valid in our address space no matter
+ * what we do with them!)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
+ union acpi_operand_object **ret_internal_object)
+{
+ union acpi_operand_object *internal_object;
+
+ ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple);
+
+ /*
+ * Simple types supported are: String, Buffer, Integer
+ */
+ switch (external_object->type) {
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ internal_object = acpi_ut_create_internal_object((u8)
+ external_object->
+ type);
+ if (!internal_object) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ break;
+
+ case ACPI_TYPE_ANY: /* This is the case for a NULL object */
+
+ *ret_internal_object = NULL;
+ return_ACPI_STATUS(AE_OK);
+
+ default:
+ /* All other types are not supported */
+
+ ACPI_ERROR((AE_INFO,
+ "Unsupported object type, cannot convert to internal object: %s",
+ acpi_ut_get_type_name(external_object->type)));
+
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ /* Must COPY string and buffer contents */
+
+ switch (external_object->type) {
+ case ACPI_TYPE_STRING:
+
+ internal_object->string.pointer =
+ ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string.
+ length + 1);
+ if (!internal_object->string.pointer) {
+ goto error_exit;
+ }
+
+ ACPI_MEMCPY(internal_object->string.pointer,
+ external_object->string.pointer,
+ external_object->string.length);
+
+ internal_object->string.length = external_object->string.length;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ internal_object->buffer.pointer =
+ ACPI_ALLOCATE_ZEROED(external_object->buffer.length);
+ if (!internal_object->buffer.pointer) {
+ goto error_exit;
+ }
+
+ ACPI_MEMCPY(internal_object->buffer.pointer,
+ external_object->buffer.pointer,
+ external_object->buffer.length);
+
+ internal_object->buffer.length = external_object->buffer.length;
+
+ /* Mark buffer data valid */
+
+ internal_object->buffer.flags |= AOPOBJ_DATA_VALID;
+ break;
+
+ case ACPI_TYPE_INTEGER:
+
+ internal_object->integer.value = external_object->integer.value;
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ /* TBD: should validate incoming handle */
+
+ internal_object->reference.class = ACPI_REFCLASS_NAME;
+ internal_object->reference.node =
+ external_object->reference.handle;
+ break;
+
+ default:
+ /* Other types can't get here */
+ break;
+ }
+
+ *ret_internal_object = internal_object;
+ return_ACPI_STATUS(AE_OK);
+
+ error_exit:
+ acpi_ut_remove_reference(internal_object);
+ return_ACPI_STATUS(AE_NO_MEMORY);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_epackage_to_ipackage
+ *
+ * PARAMETERS: external_object - The external object to be converted
+ * internal_object - Where the internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy an external package object to an internal package.
+ * Handles nested packages.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
+ union acpi_operand_object **internal_object)
+{
+ acpi_status status = AE_OK;
+ union acpi_operand_object *package_object;
+ union acpi_operand_object **package_elements;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
+
+ /* Create the package object */
+
+ package_object =
+ acpi_ut_create_package_object(external_object->package.count);
+ if (!package_object) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ package_elements = package_object->package.elements;
+
+ /*
+ * Recursive implementation. Probably ok, since nested external packages
+ * as parameters should be very rare.
+ */
+ for (i = 0; i < external_object->package.count; i++) {
+ status =
+ acpi_ut_copy_eobject_to_iobject(&external_object->package.
+ elements[i],
+ &package_elements[i]);
+ if (ACPI_FAILURE(status)) {
+
+ /* Truncate package and delete it */
+
+ package_object->package.count = i;
+ package_elements[i] = NULL;
+ acpi_ut_remove_reference(package_object);
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Mark package data valid */
+
+ package_object->package.flags |= AOPOBJ_DATA_VALID;
+
+ *internal_object = package_object;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_eobject_to_iobject
+ *
+ * PARAMETERS: external_object - The external object to be converted
+ * internal_object - Where the internal object is returned
+ *
+ * RETURN: Status - the status of the call
+ *
+ * DESCRIPTION: Converts an external object to an internal object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
+ union acpi_operand_object **internal_object)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject);
+
+ if (external_object->type == ACPI_TYPE_PACKAGE) {
+ status =
+ acpi_ut_copy_epackage_to_ipackage(external_object,
+ internal_object);
+ } else {
+ /*
+ * Build a simple object (no nested objects)
+ */
+ status =
+ acpi_ut_copy_esimple_to_isimple(external_object,
+ internal_object);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_simple_object
+ *
+ * PARAMETERS: source_desc - The internal object to be copied
+ * dest_desc - New target object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Simple copy of one internal object to another. Reference count
+ * of the destination object is preserved.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
+ union acpi_operand_object *dest_desc)
+{
+ u16 reference_count;
+ union acpi_operand_object *next_object;
+
+ /* Save fields from destination that we don't want to overwrite */
+
+ reference_count = dest_desc->common.reference_count;
+ next_object = dest_desc->common.next_object;
+
+ /* Copy the entire source object over the destination object */
+
+ ACPI_MEMCPY((char *)dest_desc, (char *)source_desc,
+ sizeof(union acpi_operand_object));
+
+ /* Restore the saved fields */
+
+ dest_desc->common.reference_count = reference_count;
+ dest_desc->common.next_object = next_object;
+
+ /* New object is not static, regardless of source */
+
+ dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
+
+ /* Handle the objects with extra data */
+
+ switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
+ case ACPI_TYPE_BUFFER:
+ /*
+ * Allocate and copy the actual buffer if and only if:
+ * 1) There is a valid buffer pointer
+ * 2) The buffer has a length > 0
+ */
+ if ((source_desc->buffer.pointer) &&
+ (source_desc->buffer.length)) {
+ dest_desc->buffer.pointer =
+ ACPI_ALLOCATE(source_desc->buffer.length);
+ if (!dest_desc->buffer.pointer) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Copy the actual buffer data */
+
+ ACPI_MEMCPY(dest_desc->buffer.pointer,
+ source_desc->buffer.pointer,
+ source_desc->buffer.length);
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+ /*
+ * Allocate and copy the actual string if and only if:
+ * 1) There is a valid string pointer
+ * (Pointer to a NULL string is allowed)
+ */
+ if (source_desc->string.pointer) {
+ dest_desc->string.pointer =
+ ACPI_ALLOCATE((acpi_size) source_desc->string.
+ length + 1);
+ if (!dest_desc->string.pointer) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Copy the actual string data */
+
+ ACPI_MEMCPY(dest_desc->string.pointer,
+ source_desc->string.pointer,
+ (acpi_size) source_desc->string.length + 1);
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ /*
+ * We copied the reference object, so we now must add a reference
+ * to the object pointed to by the reference
+ *
+ * DDBHandle reference (from Load/load_table) is a special reference,
+ * it does not have a Reference.Object, so does not need to
+ * increase the reference count
+ */
+ if (source_desc->reference.class == ACPI_REFCLASS_TABLE) {
+ break;
+ }
+
+ acpi_ut_add_reference(source_desc->reference.object);
+ break;
+
+ case ACPI_TYPE_REGION:
+ /*
+ * We copied the Region Handler, so we now must add a reference
+ */
+ if (dest_desc->region.handler) {
+ acpi_ut_add_reference(dest_desc->region.handler);
+ }
+ break;
+
+ default:
+ /* Nothing to do for other simple objects */
+ break;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ielement_to_ielement
+ *
+ * PARAMETERS: acpi_pkg_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy one package element to another package element
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_ielement_to_ielement(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state,
+ void *context)
+{
+ acpi_status status = AE_OK;
+ u32 this_index;
+ union acpi_operand_object **this_target_ptr;
+ union acpi_operand_object *target_object;
+
+ ACPI_FUNCTION_ENTRY();
+
+ this_index = state->pkg.index;
+ this_target_ptr = (union acpi_operand_object **)
+ &state->pkg.dest_object->package.elements[this_index];
+
+ switch (object_type) {
+ case ACPI_COPY_TYPE_SIMPLE:
+
+ /* A null source object indicates a (legal) null package element */
+
+ if (source_object) {
+ /*
+ * This is a simple object, just copy it
+ */
+ target_object =
+ acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE
+ (source_object));
+ if (!target_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ status =
+ acpi_ut_copy_simple_object(source_object,
+ target_object);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+
+ *this_target_ptr = target_object;
+ } else {
+ /* Pass through a null element */
+
+ *this_target_ptr = NULL;
+ }
+ break;
+
+ case ACPI_COPY_TYPE_PACKAGE:
+
+ /*
+ * This object is a package - go down another nesting level
+ * Create and build the package object
+ */
+ target_object =
+ acpi_ut_create_package_object(source_object->package.count);
+ if (!target_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ target_object->common.flags = source_object->common.flags;
+
+ /* Pass the new package object back to the package walk routine */
+
+ state->pkg.this_target_obj = target_object;
+
+ /* Store the object pointer in the parent package object */
+
+ *this_target_ptr = target_object;
+ break;
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (status);
+
+ error_exit:
+ acpi_ut_remove_reference(target_object);
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ipackage_to_ipackage
+ *
+ * PARAMETERS: *source_obj - Pointer to the source package object
+ * *dest_obj - Where the internal object is returned
+ *
+ * RETURN: Status - the status of the call
+ *
+ * DESCRIPTION: This function is called to copy an internal package object
+ * into another internal package object.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
+ union acpi_operand_object *dest_obj,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage);
+
+ dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj);
+ dest_obj->common.flags = source_obj->common.flags;
+ dest_obj->package.count = source_obj->package.count;
+
+ /*
+ * Create the object array and walk the source package tree
+ */
+ dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
+ source_obj->package.
+ count +
+ 1) * sizeof(void *));
+ if (!dest_obj->package.elements) {
+ ACPI_ERROR((AE_INFO, "Package allocation failure"));
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the package element-by-element by walking the package "tree".
+ * This handles nested packages of arbitrary depth.
+ */
+ status = acpi_ut_walk_package_tree(source_obj, dest_obj,
+ acpi_ut_copy_ielement_to_ielement,
+ walk_state);
+ if (ACPI_FAILURE(status)) {
+
+ /* On failure, delete the destination package object */
+
+ acpi_ut_remove_reference(dest_obj);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_iobject_to_iobject
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * source_desc - The internal object to be copied
+ * dest_desc - Where the copied object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy an internal object to a new internal object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc,
+ union acpi_operand_object **dest_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject);
+
+ /* Create the top level object */
+
+ *dest_desc =
+ acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE(source_desc));
+ if (!*dest_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Copy the object and possible subobjects */
+
+ if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_PACKAGE) {
+ status =
+ acpi_ut_copy_ipackage_to_ipackage(source_desc, *dest_desc,
+ walk_state);
+ } else {
+ status = acpi_ut_copy_simple_object(source_desc, *dest_desc);
+ }
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utdebug - Debug print routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utdebug")
+#ifdef ACPI_DEBUG_OUTPUT
+static acpi_thread_id acpi_gbl_prev_thread_id;
+static char *acpi_gbl_fn_entry_str = "----Entry";
+static char *acpi_gbl_fn_exit_str = "----Exit-";
+
+/* Local prototypes */
+
+static const char *acpi_ut_trim_function_name(const char *function_name);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_init_stack_ptr_trace
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
+ *
+ ******************************************************************************/
+
+void acpi_ut_init_stack_ptr_trace(void)
+{
+ acpi_size current_sp;
+
+ acpi_gbl_entry_stack_pointer = ¤t_sp;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_track_stack_ptr
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Save the current CPU stack pointer
+ *
+ ******************************************************************************/
+
+void acpi_ut_track_stack_ptr(void)
+{
+ acpi_size current_sp;
+
+ if (¤t_sp < acpi_gbl_lowest_stack_pointer) {
+ acpi_gbl_lowest_stack_pointer = ¤t_sp;
+ }
+
+ if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
+ acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trim_function_name
+ *
+ * PARAMETERS: function_name - Ascii string containing a procedure name
+ *
+ * RETURN: Updated pointer to the function name
+ *
+ * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
+ * This allows compiler macros such as __func__ to be used
+ * with no change to the debug output.
+ *
+ ******************************************************************************/
+
+static const char *acpi_ut_trim_function_name(const char *function_name)
+{
+
+ /* All Function names are longer than 4 chars, check is safe */
+
+ if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
+
+ /* This is the case where the original source has not been modified */
+
+ return (function_name + 4);
+ }
+
+ if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
+
+ /* This is the case where the source has been 'linuxized' */
+
+ return (function_name + 5);
+ }
+
+ return (function_name);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_debug_print
+ *
+ * PARAMETERS: requested_debug_level - Requested debug print level
+ * line_number - Caller's line number (for error output)
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Format - Printf format field
+ * ... - Optional printf arguments
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print error message with prefix consisting of the module name,
+ * line number, and component ID.
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_debug_print(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...)
+{
+ acpi_thread_id thread_id;
+ va_list args;
+
+ /*
+ * Stay silent if the debug level or component ID is disabled
+ */
+ if (!(requested_debug_level & acpi_dbg_level) ||
+ !(component_id & acpi_dbg_layer)) {
+ return;
+ }
+
+ /*
+ * Thread tracking and context switch notification
+ */
+ thread_id = acpi_os_get_thread_id();
+ if (thread_id != acpi_gbl_prev_thread_id) {
+ if (ACPI_LV_THREADS & acpi_dbg_level) {
+ acpi_os_printf
+ ("\n**** Context Switch from TID %lX to TID %lX ****\n\n",
+ (unsigned long)acpi_gbl_prev_thread_id,
+ (unsigned long)thread_id);
+ }
+
+ acpi_gbl_prev_thread_id = thread_id;
+ }
+
+ /*
+ * Display the module name, current line number, thread ID (if requested),
+ * current procedure nesting level, and the current procedure name
+ */
+ acpi_os_printf("%8s-%04ld ", module_name, line_number);
+
+ if (ACPI_LV_THREADS & acpi_dbg_level) {
+ acpi_os_printf("[%04lX] ", (unsigned long)thread_id);
+ }
+
+ acpi_os_printf("[%02ld] %-22.22s: ",
+ acpi_gbl_nesting_level,
+ acpi_ut_trim_function_name(function_name));
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_debug_print)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_debug_print_raw
+ *
+ * PARAMETERS: requested_debug_level - Requested debug print level
+ * line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Format - Printf format field
+ * ... - Optional printf arguments
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print message with no headers. Has same interface as
+ * debug_print so that the same macros can be used.
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_debug_print_raw(u32 requested_debug_level,
+ u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, const char *format, ...)
+{
+ va_list args;
+
+ if (!(requested_debug_level & acpi_dbg_level) ||
+ !(component_id & acpi_dbg_layer)) {
+ return;
+ }
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+void
+acpi_ut_trace(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s\n", acpi_gbl_fn_entry_str);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_trace)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace_ptr
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Pointer - Pointer to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+void
+acpi_ut_trace_ptr(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, void *pointer)
+{
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %p\n", acpi_gbl_fn_entry_str, pointer);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace_str
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * String - Additional string to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_trace_str(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, char *string)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %s\n", acpi_gbl_fn_entry_str, string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_trace_u32
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Integer - Integer to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_trace_u32(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, u32 integer)
+{
+
+ acpi_gbl_nesting_level++;
+ acpi_ut_track_stack_ptr();
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %08X\n", acpi_gbl_fn_entry_str, integer);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id)
+{
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s\n", acpi_gbl_fn_exit_str);
+
+ acpi_gbl_nesting_level--;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_exit)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_status_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Status - Exit status code
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit status also.
+ *
+ ******************************************************************************/
+void
+acpi_ut_status_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, acpi_status status)
+{
+
+ if (ACPI_SUCCESS(status)) {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s %s\n", acpi_gbl_fn_exit_str,
+ acpi_format_exception(status));
+ } else {
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name,
+ component_id, "%s ****Exception****: %s\n",
+ acpi_gbl_fn_exit_str,
+ acpi_format_exception(status));
+ }
+
+ acpi_gbl_nesting_level--;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_value_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Value - Value to be printed with exit msg
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit value also.
+ *
+ ******************************************************************************/
+void
+acpi_ut_value_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name,
+ u32 component_id, acpi_integer value)
+{
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str,
+ ACPI_FORMAT_UINT64(value));
+
+ acpi_gbl_nesting_level--;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_ptr_exit
+ *
+ * PARAMETERS: line_number - Caller's line number
+ * function_name - Caller's procedure name
+ * module_name - Caller's module name
+ * component_id - Caller's component ID
+ * Ptr - Pointer to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
+ * set in debug_level. Prints exit value also.
+ *
+ ******************************************************************************/
+void
+acpi_ut_ptr_exit(u32 line_number,
+ const char *function_name,
+ const char *module_name, u32 component_id, u8 *ptr)
+{
+
+ acpi_debug_print(ACPI_LV_FUNCTIONS,
+ line_number, function_name, module_name, component_id,
+ "%s %p\n", acpi_gbl_fn_exit_str, ptr);
+
+ acpi_gbl_nesting_level--;
+}
+
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_dump_buffer
+ *
+ * PARAMETERS: Buffer - Buffer to dump
+ * Count - Amount to dump, in bytes
+ * Display - BYTE, WORD, DWORD, or QWORD display
+ * component_iD - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Generic dump buffer in both hex and ascii.
+ *
+ ******************************************************************************/
+
+void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
+{
+ u32 i = 0;
+ u32 j;
+ u32 temp32;
+ u8 buf_char;
+
+ if (!buffer) {
+ acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
+ return;
+ }
+
+ if ((count < 4) || (count & 0x01)) {
+ display = DB_BYTE_DISPLAY;
+ }
+
+ /* Nasty little dump buffer routine! */
+
+ while (i < count) {
+
+ /* Print current offset */
+
+ acpi_os_printf("%6.4X: ", i);
+
+ /* Print 16 hex chars */
+
+ for (j = 0; j < 16;) {
+ if (i + j >= count) {
+
+ /* Dump fill spaces */
+
+ acpi_os_printf("%*s", ((display * 2) + 1), " ");
+ j += display;
+ continue;
+ }
+
+ switch (display) {
+ case DB_BYTE_DISPLAY:
+ default: /* Default is BYTE display */
+
+ acpi_os_printf("%02X ",
+ buffer[(acpi_size) i + j]);
+ break;
+
+ case DB_WORD_DISPLAY:
+
+ ACPI_MOVE_16_TO_32(&temp32,
+ &buffer[(acpi_size) i + j]);
+ acpi_os_printf("%04X ", temp32);
+ break;
+
+ case DB_DWORD_DISPLAY:
+
+ ACPI_MOVE_32_TO_32(&temp32,
+ &buffer[(acpi_size) i + j]);
+ acpi_os_printf("%08X ", temp32);
+ break;
+
+ case DB_QWORD_DISPLAY:
+
+ ACPI_MOVE_32_TO_32(&temp32,
+ &buffer[(acpi_size) i + j]);
+ acpi_os_printf("%08X", temp32);
+
+ ACPI_MOVE_32_TO_32(&temp32,
+ &buffer[(acpi_size) i + j +
+ 4]);
+ acpi_os_printf("%08X ", temp32);
+ break;
+ }
+
+ j += display;
+ }
+
+ /*
+ * Print the ASCII equivalent characters but watch out for the bad
+ * unprintable ones (printable chars are 0x20 through 0x7E)
+ */
+ acpi_os_printf(" ");
+ for (j = 0; j < 16; j++) {
+ if (i + j >= count) {
+ acpi_os_printf("\n");
+ return;
+ }
+
+ buf_char = buffer[(acpi_size) i + j];
+ if (ACPI_IS_PRINT(buf_char)) {
+ acpi_os_printf("%c", buf_char);
+ } else {
+ acpi_os_printf(".");
+ }
+ }
+
+ /* Done with that line. */
+
+ acpi_os_printf("\n");
+ i += 16;
+ }
+
+ return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_dump_buffer
+ *
+ * PARAMETERS: Buffer - Buffer to dump
+ * Count - Amount to dump, in bytes
+ * Display - BYTE, WORD, DWORD, or QWORD display
+ * component_iD - Caller's component ID
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Generic dump buffer in both hex and ascii.
+ *
+ ******************************************************************************/
+
+void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
+{
+
+ /* Only dump the buffer if tracing is enabled */
+
+ if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
+ (component_id & acpi_dbg_layer))) {
+ return;
+ }
+
+ acpi_ut_dump_buffer2(buffer, count, display);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: utdelete - object deletion and reference count utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utdelete")
+
+/* Local prototypes */
+static void acpi_ut_delete_internal_obj(union acpi_operand_object *object);
+
+static void
+acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_delete_internal_obj
+ *
+ * PARAMETERS: Object - Object to be deleted
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Low level object deletion, after reference counts have been
+ * updated (All reference counts, including sub-objects!)
+ *
+ ******************************************************************************/
+
+static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
+{
+ void *obj_pointer = NULL;
+ union acpi_operand_object *handler_desc;
+ union acpi_operand_object *second_desc;
+ union acpi_operand_object *next_desc;
+
+ ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object);
+
+ if (!object) {
+ return_VOID;
+ }
+
+ /*
+ * Must delete or free any pointers within the object that are not
+ * actual ACPI objects (for example, a raw buffer pointer).
+ */
+ switch (ACPI_GET_OBJECT_TYPE(object)) {
+ case ACPI_TYPE_STRING:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "**** String %p, ptr %p\n", object,
+ object->string.pointer));
+
+ /* Free the actual string buffer */
+
+ if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
+
+ /* But only if it is NOT a pointer into an ACPI table */
+
+ obj_pointer = object->string.pointer;
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "**** Buffer %p, ptr %p\n", object,
+ object->buffer.pointer));
+
+ /* Free the actual buffer */
+
+ if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
+
+ /* But only if it is NOT a pointer into an ACPI table */
+
+ obj_pointer = object->buffer.pointer;
+ }
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ " **** Package of count %X\n",
+ object->package.count));
+
+ /*
+ * Elements of the package are not handled here, they are deleted
+ * separately
+ */
+
+ /* Free the (variable length) element pointer array */
+
+ obj_pointer = object->package.elements;
+ break;
+
+ /*
+ * These objects have a possible list of notify handlers.
+ * Device object also may have a GPE block.
+ */
+ case ACPI_TYPE_DEVICE:
+
+ if (object->device.gpe_block) {
+ (void)acpi_ev_delete_gpe_block(object->device.
+ gpe_block);
+ }
+
+ /*lint -fallthrough */
+
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_THERMAL:
+
+ /* Walk the notify handler list for this object */
+
+ handler_desc = object->common_notify.handler;
+ while (handler_desc) {
+ next_desc = handler_desc->address_space.next;
+ acpi_ut_remove_reference(handler_desc);
+ handler_desc = next_desc;
+ }
+ break;
+
+ case ACPI_TYPE_MUTEX:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "***** Mutex %p, OS Mutex %p\n",
+ object, object->mutex.os_mutex));
+
+ if (object == acpi_gbl_global_lock_mutex) {
+
+ /* Global Lock has extra semaphore */
+
+ (void)
+ acpi_os_delete_semaphore
+ (acpi_gbl_global_lock_semaphore);
+ acpi_gbl_global_lock_semaphore = NULL;
+
+ acpi_os_delete_mutex(object->mutex.os_mutex);
+ acpi_gbl_global_lock_mutex = NULL;
+ } else {
+ acpi_ex_unlink_mutex(object);
+ acpi_os_delete_mutex(object->mutex.os_mutex);
+ }
+ break;
+
+ case ACPI_TYPE_EVENT:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "***** Event %p, OS Semaphore %p\n",
+ object, object->event.os_semaphore));
+
+ (void)acpi_os_delete_semaphore(object->event.os_semaphore);
+ object->event.os_semaphore = NULL;
+ break;
+
+ case ACPI_TYPE_METHOD:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "***** Method %p\n", object));
+
+ /* Delete the method mutex if it exists */
+
+ if (object->method.mutex) {
+ acpi_os_delete_mutex(object->method.mutex->mutex.
+ os_mutex);
+ acpi_ut_delete_object_desc(object->method.mutex);
+ object->method.mutex = NULL;
+ }
+ break;
+
+ case ACPI_TYPE_REGION:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "***** Region %p\n", object));
+
+ second_desc = acpi_ns_get_secondary_object(object);
+ if (second_desc) {
+ /*
+ * Free the region_context if and only if the handler is one of the
+ * default handlers -- and therefore, we created the context object
+ * locally, it was not created by an external caller.
+ */
+ handler_desc = object->region.handler;
+ if (handler_desc) {
+ if (handler_desc->address_space.handler_flags &
+ ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
+
+ /* Deactivate region and free region context */
+
+ if (handler_desc->address_space.setup) {
+ (void)handler_desc->
+ address_space.setup(object,
+ ACPI_REGION_DEACTIVATE,
+ handler_desc->
+ address_space.
+ context,
+ &second_desc->
+ extra.
+ region_context);
+ }
+ }
+
+ acpi_ut_remove_reference(handler_desc);
+ }
+
+ /* Now we can free the Extra object */
+
+ acpi_ut_delete_object_desc(second_desc);
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "***** Buffer Field %p\n", object));
+
+ second_desc = acpi_ns_get_secondary_object(object);
+ if (second_desc) {
+ acpi_ut_delete_object_desc(second_desc);
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "***** Bank Field %p\n", object));
+
+ second_desc = acpi_ns_get_secondary_object(object);
+ if (second_desc) {
+ acpi_ut_delete_object_desc(second_desc);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ /* Free any allocated memory (pointer within the object) found above */
+
+ if (obj_pointer) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Deleting Object Subptr %p\n", obj_pointer));
+ ACPI_FREE(obj_pointer);
+ }
+
+ /* Now the object can be safely deleted */
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n",
+ object, acpi_ut_get_object_type_name(object)));
+
+ acpi_ut_delete_object_desc(object);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_delete_internal_object_list
+ *
+ * PARAMETERS: obj_list - Pointer to the list to be deleted
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: This function deletes an internal object list, including both
+ * simple objects and package objects
+ *
+ ******************************************************************************/
+
+void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
+{
+ union acpi_operand_object **internal_obj;
+
+ ACPI_FUNCTION_TRACE(ut_delete_internal_object_list);
+
+ /* Walk the null-terminated internal list */
+
+ for (internal_obj = obj_list; *internal_obj; internal_obj++) {
+ acpi_ut_remove_reference(*internal_obj);
+ }
+
+ /* Free the combined parameter pointer list and object array */
+
+ ACPI_FREE(obj_list);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_update_ref_count
+ *
+ * PARAMETERS: Object - Object whose ref count is to be updated
+ * Action - What to do
+ *
+ * RETURN: New ref count
+ *
+ * DESCRIPTION: Modify the ref count and return it.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
+{
+ u16 count;
+ u16 new_count;
+
+ ACPI_FUNCTION_NAME(ut_update_ref_count);
+
+ if (!object) {
+ return;
+ }
+
+ count = object->common.reference_count;
+ new_count = count;
+
+ /*
+ * Perform the reference count action (increment, decrement, force delete)
+ */
+ switch (action) {
+ case REF_INCREMENT:
+
+ new_count++;
+ object->common.reference_count = new_count;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Obj %p Refs=%X, [Incremented]\n",
+ object, new_count));
+ break;
+
+ case REF_DECREMENT:
+
+ if (count < 1) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Obj %p Refs=%X, can't decrement! (Set to 0)\n",
+ object, new_count));
+
+ new_count = 0;
+ } else {
+ new_count--;
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Obj %p Refs=%X, [Decremented]\n",
+ object, new_count));
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(object) == ACPI_TYPE_METHOD) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Method Obj %p Refs=%X, [Decremented]\n",
+ object, new_count));
+ }
+
+ object->common.reference_count = new_count;
+ if (new_count == 0) {
+ acpi_ut_delete_internal_obj(object);
+ }
+ break;
+
+ case REF_FORCE_DELETE:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Obj %p Refs=%X, Force delete! (Set to 0)\n",
+ object, count));
+
+ new_count = 0;
+ object->common.reference_count = new_count;
+ acpi_ut_delete_internal_obj(object);
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Unknown action (%X)", action));
+ break;
+ }
+
+ /*
+ * Sanity check the reference count, for debug purposes only.
+ * (A deleted object will have a huge reference count)
+ */
+ if (count > ACPI_MAX_REFERENCE_COUNT) {
+ ACPI_WARNING((AE_INFO,
+ "Large Reference Count (%X) in object %p", count,
+ object));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_update_object_reference
+ *
+ * PARAMETERS: Object - Increment ref count for this object
+ * and all sub-objects
+ * Action - Either REF_INCREMENT or REF_DECREMENT or
+ * REF_FORCE_DELETE
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Increment the object reference count
+ *
+ * Object references are incremented when:
+ * 1) An object is attached to a Node (namespace object)
+ * 2) An object is copied (all subobjects must be incremented)
+ *
+ * Object references are decremented when:
+ * 1) An object is detached from an Node
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
+{
+ acpi_status status = AE_OK;
+ union acpi_generic_state *state_list = NULL;
+ union acpi_operand_object *next_object = NULL;
+ union acpi_generic_state *state;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object);
+
+ while (object) {
+
+ /* Make sure that this isn't a namespace handle */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Object %p is NS handle\n", object));
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * All sub-objects must have their reference count incremented also.
+ * Different object types have different subobjects.
+ */
+ switch (ACPI_GET_OBJECT_TYPE(object)) {
+ case ACPI_TYPE_DEVICE:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_POWER:
+ case ACPI_TYPE_THERMAL:
+
+ /* Update the notify objects for these types (if present) */
+
+ acpi_ut_update_ref_count(object->common_notify.
+ system_notify, action);
+ acpi_ut_update_ref_count(object->common_notify.
+ device_notify, action);
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ /*
+ * We must update all the sub-objects of the package,
+ * each of whom may have their own sub-objects.
+ */
+ for (i = 0; i < object->package.count; i++) {
+ /*
+ * Push each element onto the stack for later processing.
+ * Note: There can be null elements within the package,
+ * these are simply ignored
+ */
+ status =
+ acpi_ut_create_update_state_and_push
+ (object->package.elements[i], action,
+ &state_list);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+ }
+ break;
+
+ case ACPI_TYPE_BUFFER_FIELD:
+
+ next_object = object->buffer_field.buffer_obj;
+ break;
+
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+
+ next_object = object->field.region_obj;
+ break;
+
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ next_object = object->bank_field.bank_obj;
+ status =
+ acpi_ut_create_update_state_and_push(object->
+ bank_field.
+ region_obj,
+ action,
+ &state_list);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ next_object = object->index_field.index_obj;
+ status =
+ acpi_ut_create_update_state_and_push(object->
+ index_field.
+ data_obj,
+ action,
+ &state_list);
+ if (ACPI_FAILURE(status)) {
+ goto error_exit;
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ /*
+ * The target of an Index (a package, string, or buffer) or a named
+ * reference must track changes to the ref count of the index or
+ * target object.
+ */
+ if ((object->reference.class == ACPI_REFCLASS_INDEX) ||
+ (object->reference.class == ACPI_REFCLASS_NAME)) {
+ next_object = object->reference.object;
+ }
+ break;
+
+ case ACPI_TYPE_REGION:
+ default:
+ break; /* No subobjects for all other types */
+ }
+
+ /*
+ * Now we can update the count in the main object. This can only
+ * happen after we update the sub-objects in case this causes the
+ * main object to be deleted.
+ */
+ acpi_ut_update_ref_count(object, action);
+ object = NULL;
+
+ /* Move on to the next object to be updated */
+
+ if (next_object) {
+ object = next_object;
+ next_object = NULL;
+ } else if (state_list) {
+ state = acpi_ut_pop_generic_state(&state_list);
+ object = state->update.object;
+ acpi_ut_delete_generic_state(state);
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+
+ error_exit:
+
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not update object reference count"));
+
+ /* Free any stacked Update State objects */
+
+ while (state_list) {
+ state = acpi_ut_pop_generic_state(&state_list);
+ acpi_ut_delete_generic_state(state);
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_add_reference
+ *
+ * PARAMETERS: Object - Object whose reference count is to be
+ * incremented
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Add one reference to an ACPI object
+ *
+ ******************************************************************************/
+
+void acpi_ut_add_reference(union acpi_operand_object *object)
+{
+
+ ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object);
+
+ /* Ensure that we have a valid object */
+
+ if (!acpi_ut_valid_internal_object(object)) {
+ return_VOID;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Obj %p Current Refs=%X [To Be Incremented]\n",
+ object, object->common.reference_count));
+
+ /* Increment the reference count */
+
+ (void)acpi_ut_update_object_reference(object, REF_INCREMENT);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_remove_reference
+ *
+ * PARAMETERS: Object - Object whose ref count will be decremented
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Decrement the reference count of an ACPI internal object
+ *
+ ******************************************************************************/
+
+void acpi_ut_remove_reference(union acpi_operand_object *object)
+{
+
+ ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object);
+
+ /*
+ * Allow a NULL pointer to be passed in, just ignore it. This saves
+ * each caller from having to check. Also, ignore NS nodes.
+ *
+ */
+ if (!object ||
+ (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) {
+ return_VOID;
+ }
+
+ /* Ensure that we have a valid object */
+
+ if (!acpi_ut_valid_internal_object(object)) {
+ return_VOID;
+ }
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
+ "Obj %p Current Refs=%X [To Be Decremented]\n",
+ object, object->common.reference_count));
+
+ /*
+ * Decrement the reference count, and only actually delete the object
+ * if the reference count becomes 0. (Must also decrement the ref count
+ * of all subobjects!)
+ */
+ (void)acpi_ut_update_object_reference(object, REF_DECREMENT);
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: uteval - Object evaluation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("uteval")
+
+/* Local prototypes */
+static void
+acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length);
+
+static acpi_status
+acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
+ struct acpi_compatible_id *one_cid);
+
+/*
+ * Strings supported by the _OSI predefined (internal) method.
+ */
+static char *acpi_interfaces_supported[] = {
+ /* Operating System Vendor Strings */
+
+ "Windows 2000", /* Windows 2000 */
+ "Windows 2001", /* Windows XP */
+ "Windows 2001 SP1", /* Windows XP SP1 */
+ "Windows 2001 SP2", /* Windows XP SP2 */
+ "Windows 2001.1", /* Windows Server 2003 */
+ "Windows 2001.1 SP1", /* Windows Server 2003 SP1 - Added 03/2006 */
+ "Windows 2006", /* Windows Vista - Added 03/2006 */
+
+ /* Feature Group Strings */
+
+ "Extended Address Space Descriptor"
+ /*
+ * All "optional" feature group strings (features that are implemented
+ * by the host) should be implemented in the host version of
+ * acpi_os_validate_interface and should not be added here.
+ */
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_osi_implementation
+ *
+ * PARAMETERS: walk_state - Current walk state
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Implementation of the _OSI predefined control method
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
+{
+ acpi_status status;
+ union acpi_operand_object *string_desc;
+ union acpi_operand_object *return_desc;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_osi_implementation);
+
+ /* Validate the string input argument */
+
+ string_desc = walk_state->arguments[0].object;
+ if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ /* Create a return object */
+
+ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+ if (!return_desc) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Default return value is SUPPORTED */
+
+ return_desc->integer.value = ACPI_UINT32_MAX;
+ walk_state->return_desc = return_desc;
+
+ /* Compare input string to static table of supported interfaces */
+
+ for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
+ if (!ACPI_STRCMP
+ (string_desc->string.pointer,
+ acpi_interfaces_supported[i])) {
+
+ /* The interface is supported */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+ }
+
+ /*
+ * Did not match the string in the static table, call the host OSL to
+ * check for a match with one of the optional strings (such as
+ * "Module Device", "3.0 Thermal Model", etc.)
+ */
+ status = acpi_os_validate_interface(string_desc->string.pointer);
+ if (ACPI_SUCCESS(status)) {
+
+ /* The interface is supported */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* The interface is not supported */
+
+ return_desc->integer.value = 0;
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_osi_invalidate
+ *
+ * PARAMETERS: interface_string
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: invalidate string in pre-defiend _OSI string list
+ *
+ ******************************************************************************/
+
+acpi_status acpi_osi_invalidate(char *interface)
+{
+ int i;
+
+ for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
+ if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i])) {
+ *acpi_interfaces_supported[i] = '\0';
+ return AE_OK;
+ }
+ }
+ return AE_NOT_FOUND;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_evaluate_object
+ *
+ * PARAMETERS: prefix_node - Starting node
+ * Path - Path to object from starting node
+ * expected_return_types - Bitmap of allowed return types
+ * return_desc - Where a return value is stored
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Evaluates a namespace object and verifies the type of the
+ * return object. Common code that simplifies accessing objects
+ * that have required return objects of fixed types.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
+ char *path,
+ u32 expected_return_btypes,
+ union acpi_operand_object **return_desc)
+{
+ struct acpi_evaluate_info *info;
+ acpi_status status;
+ u32 return_btype;
+
+ ACPI_FUNCTION_TRACE(ut_evaluate_object);
+
+ /* Allocate the evaluation information block */
+
+ info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+ if (!info) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ info->prefix_node = prefix_node;
+ info->pathname = path;
+
+ /* Evaluate the object/method */
+
+ status = acpi_ns_evaluate(info);
+ if (ACPI_FAILURE(status)) {
+ if (status == AE_NOT_FOUND) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[%4.4s.%s] was not found\n",
+ acpi_ut_get_node_name(prefix_node),
+ path));
+ } else {
+ ACPI_ERROR_METHOD("Method execution failed",
+ prefix_node, path, status);
+ }
+
+ goto cleanup;
+ }
+
+ /* Did we get a return object? */
+
+ if (!info->return_object) {
+ if (expected_return_btypes) {
+ ACPI_ERROR_METHOD("No object was returned from",
+ prefix_node, path, AE_NOT_EXIST);
+
+ status = AE_NOT_EXIST;
+ }
+
+ goto cleanup;
+ }
+
+ /* Map the return object type to the bitmapped type */
+
+ switch (ACPI_GET_OBJECT_TYPE(info->return_object)) {
+ case ACPI_TYPE_INTEGER:
+ return_btype = ACPI_BTYPE_INTEGER;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+ return_btype = ACPI_BTYPE_BUFFER;
+ break;
+
+ case ACPI_TYPE_STRING:
+ return_btype = ACPI_BTYPE_STRING;
+ break;
+
+ case ACPI_TYPE_PACKAGE:
+ return_btype = ACPI_BTYPE_PACKAGE;
+ break;
+
+ default:
+ return_btype = 0;
+ break;
+ }
+
+ if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) {
+ /*
+ * We received a return object, but one was not expected. This can
+ * happen frequently if the "implicit return" feature is enabled.
+ * Just delete the return object and return AE_OK.
+ */
+ acpi_ut_remove_reference(info->return_object);
+ goto cleanup;
+ }
+
+ /* Is the return object one of the expected types? */
+
+ if (!(expected_return_btypes & return_btype)) {
+ ACPI_ERROR_METHOD("Return object type is incorrect",
+ prefix_node, path, AE_TYPE);
+
+ ACPI_ERROR((AE_INFO,
+ "Type returned from %s was incorrect: %s, expected Btypes: %X",
+ path,
+ acpi_ut_get_object_type_name(info->return_object),
+ expected_return_btypes));
+
+ /* On error exit, we must delete the return object */
+
+ acpi_ut_remove_reference(info->return_object);
+ status = AE_TYPE;
+ goto cleanup;
+ }
+
+ /* Object type is OK, return it */
+
+ *return_desc = info->return_object;
+
+ cleanup:
+ ACPI_FREE(info);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_evaluate_numeric_object
+ *
+ * PARAMETERS: object_name - Object name to be evaluated
+ * device_node - Node for the device
+ * Address - Where the value is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Evaluates a numeric namespace object for a selected device
+ * and stores result in *Address.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_evaluate_numeric_object(char *object_name,
+ struct acpi_namespace_node *device_node,
+ acpi_integer * address)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object);
+
+ status = acpi_ut_evaluate_object(device_node, object_name,
+ ACPI_BTYPE_INTEGER, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the returned Integer */
+
+ *address = obj_desc->integer.value;
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_id_string
+ *
+ * PARAMETERS: Destination - Where to copy the string
+ * Source - Source string
+ * max_length - Length of the destination buffer
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
+ * Performs removal of a leading asterisk if present -- workaround
+ * for a known issue on a bunch of machines.
+ *
+ ******************************************************************************/
+
+static void
+acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length)
+{
+
+ /*
+ * Workaround for ID strings that have a leading asterisk. This construct
+ * is not allowed by the ACPI specification (ID strings must be
+ * alphanumeric), but enough existing machines have this embedded in their
+ * ID strings that the following code is useful.
+ */
+ if (*source == '*') {
+ source++;
+ }
+
+ /* Do the actual copy */
+
+ ACPI_STRNCPY(destination, source, max_length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_HID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * Hid - Where the HID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _HID control method that returns the hardware
+ * ID of the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
+ struct acpica_device_id *hid)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_execute_HID);
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
+ /* Convert the Numeric HID to string */
+
+ acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
+ hid->value);
+ } else {
+ /* Copy the String HID from the returned object */
+
+ acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer,
+ sizeof(hid->value));
+ }
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_translate_one_cid
+ *
+ * PARAMETERS: obj_desc - _CID object, must be integer or string
+ * one_cid - Where the CID string is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Return a numeric or string _CID value as a string.
+ * (Compatible ID)
+ *
+ * NOTE: Assumes a maximum _CID string length of
+ * ACPI_MAX_CID_LENGTH.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
+ struct acpi_compatible_id *one_cid)
+{
+
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+ case ACPI_TYPE_INTEGER:
+
+ /* Convert the Numeric CID to string */
+
+ acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
+ one_cid->value);
+ return (AE_OK);
+
+ case ACPI_TYPE_STRING:
+
+ if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
+ return (AE_AML_STRING_LIMIT);
+ }
+
+ /* Copy the String CID from the returned object */
+
+ acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer,
+ ACPI_MAX_CID_LENGTH);
+ return (AE_OK);
+
+ default:
+
+ return (AE_TYPE);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_CID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * return_cid_list - Where the CID list is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _CID control method that returns one or more
+ * compatible hardware IDs for the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
+ struct acpi_compatible_id_list ** return_cid_list)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ u32 count;
+ u32 size;
+ struct acpi_compatible_id_list *cid_list;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_execute_CID);
+
+ /* Evaluate the _CID method for this device */
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
+ | ACPI_BTYPE_PACKAGE, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the number of _CIDs returned */
+
+ count = 1;
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
+ count = obj_desc->package.count;
+ }
+
+ /* Allocate a worst-case buffer for the _CIDs */
+
+ size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
+ sizeof(struct acpi_compatible_id_list));
+
+ cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
+ if (!cid_list) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ /* Init CID list */
+
+ cid_list->count = count;
+ cid_list->size = size;
+
+ /*
+ * A _CID can return either a single compatible ID or a package of
+ * compatible IDs. Each compatible ID can be one of the following:
+ * 1) Integer (32 bit compressed EISA ID) or
+ * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
+ */
+
+ /* The _CID object can be either a single CID or a package (list) of CIDs */
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
+
+ /* Translate each package element */
+
+ for (i = 0; i < count; i++) {
+ status =
+ acpi_ut_translate_one_cid(obj_desc->package.
+ elements[i],
+ &cid_list->id[i]);
+ if (ACPI_FAILURE(status)) {
+ break;
+ }
+ }
+ } else {
+ /* Only one CID, translate to a string */
+
+ status = acpi_ut_translate_one_cid(obj_desc, cid_list->id);
+ }
+
+ /* Cleanup on error */
+
+ if (ACPI_FAILURE(status)) {
+ ACPI_FREE(cid_list);
+ } else {
+ *return_cid_list = cid_list;
+ }
+
+ /* On exit, we must delete the _CID return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_UID
+ *
+ * PARAMETERS: device_node - Node for the device
+ * Uid - Where the UID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes the _UID control method that returns the hardware
+ * ID of the device.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
+ struct acpica_device_id *uid)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_execute_UID);
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
+ ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
+ &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
+
+ /* Convert the Numeric UID to string */
+
+ acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
+ uid->value);
+ } else {
+ /* Copy the String UID from the returned object */
+
+ acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer,
+ sizeof(uid->value));
+ }
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_STA
+ *
+ * PARAMETERS: device_node - Node for the device
+ * Flags - Where the status flags are returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes _STA for selected device and stores results in
+ * *Flags.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_execute_STA);
+
+ status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA,
+ ACPI_BTYPE_INTEGER, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ if (AE_NOT_FOUND == status) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "_STA on %4.4s was not found, assuming device is present\n",
+ acpi_ut_get_node_name(device_node)));
+
+ *flags = ACPI_UINT32_MAX;
+ status = AE_OK;
+ }
+
+ return_ACPI_STATUS(status);
+ }
+
+ /* Extract the status flags */
+
+ *flags = (u32) obj_desc->integer.value;
+
+ /* On exit, we must delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_execute_Sxds
+ *
+ * PARAMETERS: device_node - Node for the device
+ * Flags - Where the status flags are returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Executes _STA for selected device and stores results in
+ * *Flags.
+ *
+ * NOTE: Internal function, no parameter validation
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
+{
+ union acpi_operand_object *obj_desc;
+ acpi_status status;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_execute_sxds);
+
+ for (i = 0; i < 4; i++) {
+ highest[i] = 0xFF;
+ status = acpi_ut_evaluate_object(device_node,
+ ACPI_CAST_PTR(char,
+ acpi_gbl_highest_dstate_names
+ [i]),
+ ACPI_BTYPE_INTEGER, &obj_desc);
+ if (ACPI_FAILURE(status)) {
+ if (status != AE_NOT_FOUND) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "%s on Device %4.4s, %s\n",
+ ACPI_CAST_PTR(char,
+ acpi_gbl_highest_dstate_names
+ [i]),
+ acpi_ut_get_node_name
+ (device_node),
+ acpi_format_exception
+ (status)));
+
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ /* Extract the Dstate value */
+
+ highest[i] = (u8) obj_desc->integer.value;
+
+ /* Delete the return object */
+
+ acpi_ut_remove_reference(obj_desc);
+ }
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utglobal - Global variables for the ACPI subsystem
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#define DEFINE_ACPI_GLOBALS
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utglobal")
+
+/*******************************************************************************
+ *
+ * Static global variable initialization.
+ *
+ ******************************************************************************/
+/*
+ * We want the debug switches statically initialized so they
+ * are already set when the debugger is entered.
+ */
+/* Debug switch - level and trace mask */
+u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
+
+/* Debug switch - layer (component) mask */
+
+u32 acpi_dbg_layer = 0;
+u32 acpi_gbl_nesting_level = 0;
+
+/* Debugger globals */
+
+u8 acpi_gbl_db_terminate_threads = FALSE;
+u8 acpi_gbl_abort_method = FALSE;
+u8 acpi_gbl_method_executing = FALSE;
+
+/* System flags */
+
+u32 acpi_gbl_startup_flags = 0;
+
+/* System starts uninitialized */
+
+u8 acpi_gbl_shutdown = TRUE;
+
+const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
+ "\\_S0_",
+ "\\_S1_",
+ "\\_S2_",
+ "\\_S3_",
+ "\\_S4_",
+ "\\_S5_"
+};
+
+const char *acpi_gbl_highest_dstate_names[4] = {
+ "_S1D",
+ "_S2D",
+ "_S3D",
+ "_S4D"
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_format_exception
+ *
+ * PARAMETERS: Status - The acpi_status code to be formatted
+ *
+ * RETURN: A string containing the exception text. A valid pointer is
+ * always returned.
+ *
+ * DESCRIPTION: This function translates an ACPI exception into an ASCII string
+ * It is here instead of utxface.c so it is always present.
+ *
+ ******************************************************************************/
+
+const char *acpi_format_exception(acpi_status status)
+{
+ const char *exception = NULL;
+
+ ACPI_FUNCTION_ENTRY();
+
+ exception = acpi_ut_validate_exception(status);
+ if (!exception) {
+
+ /* Exception code was not recognized */
+
+ ACPI_ERROR((AE_INFO,
+ "Unknown exception code: 0x%8.8X", status));
+
+ exception = "UNKNOWN_STATUS_CODE";
+ dump_stack();
+ }
+
+ return (ACPI_CAST_PTR(const char, exception));
+}
+
+ACPI_EXPORT_SYMBOL(acpi_format_exception)
+
+/*******************************************************************************
+ *
+ * Namespace globals
+ *
+ ******************************************************************************/
+/*
+ * Predefined ACPI Names (Built-in to the Interpreter)
+ *
+ * NOTES:
+ * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
+ * during the initialization sequence.
+ * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
+ * perform a Notify() operation on it.
+ */
+const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
+ {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
+ {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
+ {"_SB_", ACPI_TYPE_DEVICE, NULL},
+ {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
+ {"_TZ_", ACPI_TYPE_THERMAL, NULL},
+ {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
+ {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
+ {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
+
+#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
+ {"_OSI", ACPI_TYPE_METHOD, (char *)1},
+#endif
+
+ /* Table terminator */
+
+ {NULL, ACPI_TYPE_ANY, NULL}
+};
+
+/*
+ * Properties of the ACPI Object Types, both internal and external.
+ * The table is indexed by values of acpi_object_type
+ */
+const u8 acpi_gbl_ns_properties[] = {
+ ACPI_NS_NORMAL, /* 00 Any */
+ ACPI_NS_NORMAL, /* 01 Number */
+ ACPI_NS_NORMAL, /* 02 String */
+ ACPI_NS_NORMAL, /* 03 Buffer */
+ ACPI_NS_NORMAL, /* 04 Package */
+ ACPI_NS_NORMAL, /* 05 field_unit */
+ ACPI_NS_NEWSCOPE, /* 06 Device */
+ ACPI_NS_NORMAL, /* 07 Event */
+ ACPI_NS_NEWSCOPE, /* 08 Method */
+ ACPI_NS_NORMAL, /* 09 Mutex */
+ ACPI_NS_NORMAL, /* 10 Region */
+ ACPI_NS_NEWSCOPE, /* 11 Power */
+ ACPI_NS_NEWSCOPE, /* 12 Processor */
+ ACPI_NS_NEWSCOPE, /* 13 Thermal */
+ ACPI_NS_NORMAL, /* 14 buffer_field */
+ ACPI_NS_NORMAL, /* 15 ddb_handle */
+ ACPI_NS_NORMAL, /* 16 Debug Object */
+ ACPI_NS_NORMAL, /* 17 def_field */
+ ACPI_NS_NORMAL, /* 18 bank_field */
+ ACPI_NS_NORMAL, /* 19 index_field */
+ ACPI_NS_NORMAL, /* 20 Reference */
+ ACPI_NS_NORMAL, /* 21 Alias */
+ ACPI_NS_NORMAL, /* 22 method_alias */
+ ACPI_NS_NORMAL, /* 23 Notify */
+ ACPI_NS_NORMAL, /* 24 Address Handler */
+ ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
+ ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
+ ACPI_NS_NEWSCOPE, /* 27 Scope */
+ ACPI_NS_NORMAL, /* 28 Extra */
+ ACPI_NS_NORMAL, /* 29 Data */
+ ACPI_NS_NORMAL /* 30 Invalid */
+};
+
+/* Hex to ASCII conversion table */
+
+static const char acpi_gbl_hex_to_ascii[] = {
+ '0', '1', '2', '3', '4', '5', '6', '7',
+ '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_hex_to_ascii_char
+ *
+ * PARAMETERS: Integer - Contains the hex digit
+ * Position - bit position of the digit within the
+ * integer (multiple of 4)
+ *
+ * RETURN: The converted Ascii character
+ *
+ * DESCRIPTION: Convert a hex digit to an Ascii character
+ *
+ ******************************************************************************/
+
+char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
+{
+
+ return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
+}
+
+/******************************************************************************
+ *
+ * Event and Hardware globals
+ *
+ ******************************************************************************/
+
+struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
+ /* Name Parent Register Register Bit Position Register Bit Mask */
+
+ /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_TIMER_STATUS,
+ ACPI_BITMASK_TIMER_STATUS},
+ /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_BUS_MASTER_STATUS,
+ ACPI_BITMASK_BUS_MASTER_STATUS},
+ /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
+ ACPI_BITMASK_GLOBAL_LOCK_STATUS},
+ /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_POWER_BUTTON_STATUS,
+ ACPI_BITMASK_POWER_BUTTON_STATUS},
+ /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
+ ACPI_BITMASK_SLEEP_BUTTON_STATUS},
+ /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_RT_CLOCK_STATUS,
+ ACPI_BITMASK_RT_CLOCK_STATUS},
+ /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_WAKE_STATUS,
+ ACPI_BITMASK_WAKE_STATUS},
+ /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
+ ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
+ ACPI_BITMASK_PCIEXP_WAKE_STATUS},
+
+ /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
+ ACPI_BITPOSITION_TIMER_ENABLE,
+ ACPI_BITMASK_TIMER_ENABLE},
+ /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
+ ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
+ ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
+ /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
+ ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
+ ACPI_BITMASK_POWER_BUTTON_ENABLE},
+ /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
+ ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
+ ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
+ /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
+ ACPI_BITPOSITION_RT_CLOCK_ENABLE,
+ ACPI_BITMASK_RT_CLOCK_ENABLE},
+ /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
+ ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
+ ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
+
+ /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
+ ACPI_BITPOSITION_SCI_ENABLE,
+ ACPI_BITMASK_SCI_ENABLE},
+ /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
+ ACPI_BITPOSITION_BUS_MASTER_RLD,
+ ACPI_BITMASK_BUS_MASTER_RLD},
+ /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
+ ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
+ ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
+ /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL,
+ ACPI_BITPOSITION_SLEEP_TYPE_X,
+ ACPI_BITMASK_SLEEP_TYPE_X},
+ /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL,
+ ACPI_BITPOSITION_SLEEP_TYPE_X,
+ ACPI_BITMASK_SLEEP_TYPE_X},
+ /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
+ ACPI_BITPOSITION_SLEEP_ENABLE,
+ ACPI_BITMASK_SLEEP_ENABLE},
+
+ /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
+ ACPI_BITPOSITION_ARB_DISABLE,
+ ACPI_BITMASK_ARB_DISABLE}
+};
+
+struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
+ /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
+ ACPI_BITREG_TIMER_ENABLE,
+ ACPI_BITMASK_TIMER_STATUS,
+ ACPI_BITMASK_TIMER_ENABLE},
+ /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
+ ACPI_BITREG_GLOBAL_LOCK_ENABLE,
+ ACPI_BITMASK_GLOBAL_LOCK_STATUS,
+ ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
+ /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
+ ACPI_BITREG_POWER_BUTTON_ENABLE,
+ ACPI_BITMASK_POWER_BUTTON_STATUS,
+ ACPI_BITMASK_POWER_BUTTON_ENABLE},
+ /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
+ ACPI_BITREG_SLEEP_BUTTON_ENABLE,
+ ACPI_BITMASK_SLEEP_BUTTON_STATUS,
+ ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
+ /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
+ ACPI_BITREG_RT_CLOCK_ENABLE,
+ ACPI_BITMASK_RT_CLOCK_STATUS,
+ ACPI_BITMASK_RT_CLOCK_ENABLE},
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_region_name
+ *
+ * PARAMETERS: None.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a Space ID into a name string (Debug only)
+ *
+ ******************************************************************************/
+
+/* Region type decoding */
+
+const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
+ "SystemMemory",
+ "SystemIO",
+ "PCI_Config",
+ "EmbeddedControl",
+ "SMBus",
+ "SystemCMOS",
+ "PCIBARTarget",
+ "DataTable"
+};
+
+char *acpi_ut_get_region_name(u8 space_id)
+{
+
+ if (space_id >= ACPI_USER_REGION_BEGIN) {
+ return ("UserDefinedRegion");
+ } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
+ return ("InvalidSpaceId");
+ }
+
+ return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_event_name
+ *
+ * PARAMETERS: None.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a Event ID into a name string (Debug only)
+ *
+ ******************************************************************************/
+
+/* Event type decoding */
+
+static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
+ "PM_Timer",
+ "GlobalLock",
+ "PowerButton",
+ "SleepButton",
+ "RealTimeClock",
+};
+
+char *acpi_ut_get_event_name(u32 event_id)
+{
+
+ if (event_id > ACPI_EVENT_MAX) {
+ return ("InvalidEventID");
+ }
+
+ return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_type_name
+ *
+ * PARAMETERS: None.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Translate a Type ID into a name string (Debug only)
+ *
+ ******************************************************************************/
+
+/*
+ * Elements of acpi_gbl_ns_type_names below must match
+ * one-to-one with values of acpi_object_type
+ *
+ * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
+ * when stored in a table it really means that we have thus far seen no
+ * evidence to indicate what type is actually going to be stored for this entry.
+ */
+static const char acpi_gbl_bad_type[] = "UNDEFINED";
+
+/* Printable names of the ACPI object types */
+
+static const char *acpi_gbl_ns_type_names[] = {
+ /* 00 */ "Untyped",
+ /* 01 */ "Integer",
+ /* 02 */ "String",
+ /* 03 */ "Buffer",
+ /* 04 */ "Package",
+ /* 05 */ "FieldUnit",
+ /* 06 */ "Device",
+ /* 07 */ "Event",
+ /* 08 */ "Method",
+ /* 09 */ "Mutex",
+ /* 10 */ "Region",
+ /* 11 */ "Power",
+ /* 12 */ "Processor",
+ /* 13 */ "Thermal",
+ /* 14 */ "BufferField",
+ /* 15 */ "DdbHandle",
+ /* 16 */ "DebugObject",
+ /* 17 */ "RegionField",
+ /* 18 */ "BankField",
+ /* 19 */ "IndexField",
+ /* 20 */ "Reference",
+ /* 21 */ "Alias",
+ /* 22 */ "MethodAlias",
+ /* 23 */ "Notify",
+ /* 24 */ "AddrHandler",
+ /* 25 */ "ResourceDesc",
+ /* 26 */ "ResourceFld",
+ /* 27 */ "Scope",
+ /* 28 */ "Extra",
+ /* 29 */ "Data",
+ /* 30 */ "Invalid"
+};
+
+char *acpi_ut_get_type_name(acpi_object_type type)
+{
+
+ if (type > ACPI_TYPE_INVALID) {
+ return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
+ }
+
+ return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
+}
+
+char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
+{
+
+ if (!obj_desc) {
+ return ("[NULL Object Descriptor]");
+ }
+
+ return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_node_name
+ *
+ * PARAMETERS: Object - A namespace node
+ *
+ * RETURN: Pointer to a string
+ *
+ * DESCRIPTION: Validate the node and return the node's ACPI name.
+ *
+ ******************************************************************************/
+
+char *acpi_ut_get_node_name(void *object)
+{
+ struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
+
+ /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
+
+ if (!object) {
+ return ("NULL");
+ }
+
+ /* Check for Root node */
+
+ if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
+ return ("\"\\\" ");
+ }
+
+ /* Descriptor must be a namespace node */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
+ return ("####");
+ }
+
+ /* Name must be a valid ACPI name */
+
+ if (!acpi_ut_valid_acpi_name(node->name.integer)) {
+ node->name.integer = acpi_ut_repair_name(node->name.ascii);
+ }
+
+ /* Return the name */
+
+ return (node->name.ascii);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_descriptor_name
+ *
+ * PARAMETERS: Object - An ACPI object
+ *
+ * RETURN: Pointer to a string
+ *
+ * DESCRIPTION: Validate object and return the descriptor type
+ *
+ ******************************************************************************/
+
+/* Printable names of object descriptor types */
+
+static const char *acpi_gbl_desc_type_names[] = {
+ /* 00 */ "Invalid",
+ /* 01 */ "Cached",
+ /* 02 */ "State-Generic",
+ /* 03 */ "State-Update",
+ /* 04 */ "State-Package",
+ /* 05 */ "State-Control",
+ /* 06 */ "State-RootParseScope",
+ /* 07 */ "State-ParseScope",
+ /* 08 */ "State-WalkScope",
+ /* 09 */ "State-Result",
+ /* 10 */ "State-Notify",
+ /* 11 */ "State-Thread",
+ /* 12 */ "Walk",
+ /* 13 */ "Parser",
+ /* 14 */ "Operand",
+ /* 15 */ "Node"
+};
+
+char *acpi_ut_get_descriptor_name(void *object)
+{
+
+ if (!object) {
+ return ("NULL OBJECT");
+ }
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
+ return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
+ }
+
+ return (ACPI_CAST_PTR(char,
+ acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
+ (object)]));
+
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_reference_name
+ *
+ * PARAMETERS: Object - An ACPI reference object
+ *
+ * RETURN: Pointer to a string
+ *
+ * DESCRIPTION: Decode a reference object sub-type to a string.
+ *
+ ******************************************************************************/
+
+/* Printable names of reference object sub-types */
+
+static const char *acpi_gbl_ref_class_names[] = {
+ /* 00 */ "Local",
+ /* 01 */ "Argument",
+ /* 02 */ "RefOf",
+ /* 03 */ "Index",
+ /* 04 */ "DdbHandle",
+ /* 05 */ "Named Object",
+ /* 06 */ "Debug"
+};
+
+const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
+{
+ if (!object)
+ return "NULL Object";
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
+ return "Not an Operand object";
+
+ if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
+ return "Not a Reference object";
+
+ if (object->reference.class > ACPI_REFCLASS_MAX)
+ return "Unknown Reference class";
+
+ return acpi_gbl_ref_class_names[object->reference.class];
+}
+
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+/*
+ * Strings and procedures used for debug only
+ */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_mutex_name
+ *
+ * PARAMETERS: mutex_id - The predefined ID for this mutex.
+ *
+ * RETURN: String containing the name of the mutex. Always returns a valid
+ * pointer.
+ *
+ * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
+ *
+ ******************************************************************************/
+
+char *acpi_ut_get_mutex_name(u32 mutex_id)
+{
+
+ if (mutex_id > ACPI_MAX_MUTEX) {
+ return ("Invalid Mutex ID");
+ }
+
+ return (acpi_gbl_mutex_names[mutex_id]);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_notify_name
+ *
+ * PARAMETERS: notify_value - Value from the Notify() request
+ *
+ * RETURN: String corresponding to the Notify Value.
+ *
+ * DESCRIPTION: Translate a Notify Value to a notify namestring.
+ *
+ ******************************************************************************/
+
+/* Names for Notify() values, used for debug output */
+
+static const char *acpi_gbl_notify_value_names[] = {
+ "Bus Check",
+ "Device Check",
+ "Device Wake",
+ "Eject Request",
+ "Device Check Light",
+ "Frequency Mismatch",
+ "Bus Mode Mismatch",
+ "Power Fault",
+ "Capabilities Check",
+ "Device PLD Check",
+ "Reserved",
+ "System Locality Update"
+};
+
+const char *acpi_ut_get_notify_name(u32 notify_value)
+{
+
+ if (notify_value <= ACPI_NOTIFY_MAX) {
+ return (acpi_gbl_notify_value_names[notify_value]);
+ } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
+ return ("Reserved");
+ } else { /* Greater or equal to 0x80 */
+
+ return ("**Device Specific**");
+ }
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_valid_object_type
+ *
+ * PARAMETERS: Type - Object type to be validated
+ *
+ * RETURN: TRUE if valid object type, FALSE otherwise
+ *
+ * DESCRIPTION: Validate an object type
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_object_type(acpi_object_type type)
+{
+
+ if (type > ACPI_TYPE_LOCAL_MAX) {
+
+ /* Note: Assumes all TYPEs are contiguous (external/local) */
+
+ return (FALSE);
+ }
+
+ return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_init_globals
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Init library globals. All globals that require specific
+ * initialization should be initialized here!
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_init_globals(void)
+{
+ acpi_status status;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_init_globals);
+
+ /* Create all memory caches */
+
+ status = acpi_ut_create_caches();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Mutex locked flags */
+
+ for (i = 0; i < ACPI_NUM_MUTEX; i++) {
+ acpi_gbl_mutex_info[i].mutex = NULL;
+ acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+ acpi_gbl_mutex_info[i].use_count = 0;
+ }
+
+ for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
+ acpi_gbl_owner_id_mask[i] = 0;
+ }
+ acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
+
+ /* GPE support */
+
+ acpi_gbl_gpe_xrupt_list_head = NULL;
+ acpi_gbl_gpe_fadt_blocks[0] = NULL;
+ acpi_gbl_gpe_fadt_blocks[1] = NULL;
+ acpi_current_gpe_count = 0;
+
+ /* Global handlers */
+
+ acpi_gbl_system_notify.handler = NULL;
+ acpi_gbl_device_notify.handler = NULL;
+ acpi_gbl_exception_handler = NULL;
+ acpi_gbl_init_handler = NULL;
+ acpi_gbl_table_handler = NULL;
+
+ /* Global Lock support */
+
+ acpi_gbl_global_lock_semaphore = NULL;
+ acpi_gbl_global_lock_mutex = NULL;
+ acpi_gbl_global_lock_acquired = FALSE;
+ acpi_gbl_global_lock_handle = 0;
+ acpi_gbl_global_lock_present = FALSE;
+
+ /* Miscellaneous variables */
+
+ acpi_gbl_cm_single_step = FALSE;
+ acpi_gbl_db_terminate_threads = FALSE;
+ acpi_gbl_shutdown = FALSE;
+ acpi_gbl_ns_lookup_count = 0;
+ acpi_gbl_ps_find_count = 0;
+ acpi_gbl_acpi_hardware_present = TRUE;
+ acpi_gbl_last_owner_id_index = 0;
+ acpi_gbl_next_owner_id_offset = 0;
+ acpi_gbl_trace_method_name = 0;
+ acpi_gbl_trace_dbg_level = 0;
+ acpi_gbl_trace_dbg_layer = 0;
+ acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
+ acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
+
+ /* Hardware oriented */
+
+ acpi_gbl_events_initialized = FALSE;
+ acpi_gbl_system_awake_and_running = TRUE;
+
+ /* Namespace */
+
+ acpi_gbl_root_node = NULL;
+ acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
+ acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
+ acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
+ acpi_gbl_root_node_struct.child = NULL;
+ acpi_gbl_root_node_struct.peer = NULL;
+ acpi_gbl_root_node_struct.object = NULL;
+ acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
+
+#ifdef ACPI_DEBUG_OUTPUT
+ acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
+#endif
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ acpi_gbl_display_final_mem_stats = FALSE;
+#endif
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
+ACPI_EXPORT_SYMBOL(acpi_dbg_level)
+ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utinit - Common ACPI subsystem initialization
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acevents.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utinit")
+
+/* Local prototypes */
+static void acpi_ut_terminate(void);
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ut_terminate
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: Free global memory
+ *
+ ******************************************************************************/
+
+static void acpi_ut_terminate(void)
+{
+ struct acpi_gpe_block_info *gpe_block;
+ struct acpi_gpe_block_info *next_gpe_block;
+ struct acpi_gpe_xrupt_info *gpe_xrupt_info;
+ struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
+
+ ACPI_FUNCTION_TRACE(ut_terminate);
+
+ /* Free global GPE blocks and related info structures */
+
+ gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
+ while (gpe_xrupt_info) {
+ gpe_block = gpe_xrupt_info->gpe_block_list_head;
+ while (gpe_block) {
+ next_gpe_block = gpe_block->next;
+ ACPI_FREE(gpe_block->event_info);
+ ACPI_FREE(gpe_block->register_info);
+ ACPI_FREE(gpe_block);
+
+ gpe_block = next_gpe_block;
+ }
+ next_gpe_xrupt_info = gpe_xrupt_info->next;
+ ACPI_FREE(gpe_xrupt_info);
+ gpe_xrupt_info = next_gpe_xrupt_info;
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_subsystem_shutdown
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex
+ * objects here -- because the AML debugger may be still running.
+ *
+ ******************************************************************************/
+
+void acpi_ut_subsystem_shutdown(void)
+{
+
+ ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
+
+ /* Just exit if subsystem is already shutdown */
+
+ if (acpi_gbl_shutdown) {
+ ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
+ return_VOID;
+ }
+
+ /* Subsystem appears active, go ahead and shut it down */
+
+ acpi_gbl_shutdown = TRUE;
+ acpi_gbl_startup_flags = 0;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
+
+#ifndef ACPI_ASL_COMPILER
+
+ /* Close the acpi_event Handling */
+
+ acpi_ev_terminate();
+#endif
+
+ /* Close the Namespace */
+
+ acpi_ns_terminate();
+
+ /* Delete the ACPI tables */
+
+ acpi_tb_terminate();
+
+ /* Close the globals */
+
+ acpi_ut_terminate();
+
+ /* Purge the local caches */
+
+ (void)acpi_ut_delete_caches();
+ return_VOID;
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: utmath - Integer math support routines
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utmath")
+
+/*
+ * Support for double-precision integer divide. This code is included here
+ * in order to support kernel environments where the double-precision math
+ * library is not available.
+ */
+#ifndef ACPI_USE_NATIVE_DIVIDE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_divide
+ *
+ * PARAMETERS: Dividend - 64-bit dividend
+ * Divisor - 32-bit divisor
+ * out_quotient - Pointer to where the quotient is returned
+ * out_remainder - Pointer to where the remainder is returned
+ *
+ * RETURN: Status (Checks for divide-by-zero)
+ *
+ * DESCRIPTION: Perform a short (maximum 64 bits divided by 32 bits)
+ * divide and modulo. The result is a 64-bit quotient and a
+ * 32-bit remainder.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ut_short_divide(acpi_integer dividend,
+ u32 divisor,
+ acpi_integer * out_quotient, u32 * out_remainder)
+{
+ union uint64_overlay dividend_ovl;
+ union uint64_overlay quotient;
+ u32 remainder32;
+
+ ACPI_FUNCTION_TRACE(ut_short_divide);
+
+ /* Always check for a zero divisor */
+
+ if (divisor == 0) {
+ ACPI_ERROR((AE_INFO, "Divide by zero"));
+ return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
+ }
+
+ dividend_ovl.full = dividend;
+
+ /*
+ * The quotient is 64 bits, the remainder is always 32 bits,
+ * and is generated by the second divide.
+ */
+ ACPI_DIV_64_BY_32(0, dividend_ovl.part.hi, divisor,
+ quotient.part.hi, remainder32);
+ ACPI_DIV_64_BY_32(remainder32, dividend_ovl.part.lo, divisor,
+ quotient.part.lo, remainder32);
+
+ /* Return only what was requested */
+
+ if (out_quotient) {
+ *out_quotient = quotient.full;
+ }
+ if (out_remainder) {
+ *out_remainder = remainder32;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_divide
+ *
+ * PARAMETERS: in_dividend - Dividend
+ * in_divisor - Divisor
+ * out_quotient - Pointer to where the quotient is returned
+ * out_remainder - Pointer to where the remainder is returned
+ *
+ * RETURN: Status (Checks for divide-by-zero)
+ *
+ * DESCRIPTION: Perform a divide and modulo.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_divide(acpi_integer in_dividend,
+ acpi_integer in_divisor,
+ acpi_integer * out_quotient, acpi_integer * out_remainder)
+{
+ union uint64_overlay dividend;
+ union uint64_overlay divisor;
+ union uint64_overlay quotient;
+ union uint64_overlay remainder;
+ union uint64_overlay normalized_dividend;
+ union uint64_overlay normalized_divisor;
+ u32 partial1;
+ union uint64_overlay partial2;
+ union uint64_overlay partial3;
+
+ ACPI_FUNCTION_TRACE(ut_divide);
+
+ /* Always check for a zero divisor */
+
+ if (in_divisor == 0) {
+ ACPI_ERROR((AE_INFO, "Divide by zero"));
+ return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
+ }
+
+ divisor.full = in_divisor;
+ dividend.full = in_dividend;
+ if (divisor.part.hi == 0) {
+ /*
+ * 1) Simplest case is where the divisor is 32 bits, we can
+ * just do two divides
+ */
+ remainder.part.hi = 0;
+
+ /*
+ * The quotient is 64 bits, the remainder is always 32 bits,
+ * and is generated by the second divide.
+ */
+ ACPI_DIV_64_BY_32(0, dividend.part.hi, divisor.part.lo,
+ quotient.part.hi, partial1);
+ ACPI_DIV_64_BY_32(partial1, dividend.part.lo, divisor.part.lo,
+ quotient.part.lo, remainder.part.lo);
+ }
+
+ else {
+ /*
+ * 2) The general case where the divisor is a full 64 bits
+ * is more difficult
+ */
+ quotient.part.hi = 0;
+ normalized_dividend = dividend;
+ normalized_divisor = divisor;
+
+ /* Normalize the operands (shift until the divisor is < 32 bits) */
+
+ do {
+ ACPI_SHIFT_RIGHT_64(normalized_divisor.part.hi,
+ normalized_divisor.part.lo);
+ ACPI_SHIFT_RIGHT_64(normalized_dividend.part.hi,
+ normalized_dividend.part.lo);
+
+ } while (normalized_divisor.part.hi != 0);
+
+ /* Partial divide */
+
+ ACPI_DIV_64_BY_32(normalized_dividend.part.hi,
+ normalized_dividend.part.lo,
+ normalized_divisor.part.lo,
+ quotient.part.lo, partial1);
+
+ /*
+ * The quotient is always 32 bits, and simply requires adjustment.
+ * The 64-bit remainder must be generated.
+ */
+ partial1 = quotient.part.lo * divisor.part.hi;
+ partial2.full =
+ (acpi_integer) quotient.part.lo * divisor.part.lo;
+ partial3.full = (acpi_integer) partial2.part.hi + partial1;
+
+ remainder.part.hi = partial3.part.lo;
+ remainder.part.lo = partial2.part.lo;
+
+ if (partial3.part.hi == 0) {
+ if (partial3.part.lo >= dividend.part.hi) {
+ if (partial3.part.lo == dividend.part.hi) {
+ if (partial2.part.lo > dividend.part.lo) {
+ quotient.part.lo--;
+ remainder.full -= divisor.full;
+ }
+ } else {
+ quotient.part.lo--;
+ remainder.full -= divisor.full;
+ }
+ }
+
+ remainder.full = remainder.full - dividend.full;
+ remainder.part.hi = (u32) - ((s32) remainder.part.hi);
+ remainder.part.lo = (u32) - ((s32) remainder.part.lo);
+
+ if (remainder.part.lo) {
+ remainder.part.hi--;
+ }
+ }
+ }
+
+ /* Return only what was requested */
+
+ if (out_quotient) {
+ *out_quotient = quotient.full;
+ }
+ if (out_remainder) {
+ *out_remainder = remainder.full;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+#else
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_short_divide, acpi_ut_divide
+ *
+ * PARAMETERS: See function headers above
+ *
+ * DESCRIPTION: Native versions of the ut_divide functions. Use these if either
+ * 1) The target is a 64-bit platform and therefore 64-bit
+ * integer math is supported directly by the machine.
+ * 2) The target is a 32-bit or 16-bit platform, and the
+ * double-precision integer math library is available to
+ * perform the divide.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ut_short_divide(acpi_integer in_dividend,
+ u32 divisor,
+ acpi_integer * out_quotient, u32 * out_remainder)
+{
+
+ ACPI_FUNCTION_TRACE(ut_short_divide);
+
+ /* Always check for a zero divisor */
+
+ if (divisor == 0) {
+ ACPI_ERROR((AE_INFO, "Divide by zero"));
+ return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
+ }
+
+ /* Return only what was requested */
+
+ if (out_quotient) {
+ *out_quotient = in_dividend / divisor;
+ }
+ if (out_remainder) {
+ *out_remainder = (u32) (in_dividend % divisor);
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+acpi_status
+acpi_ut_divide(acpi_integer in_dividend,
+ acpi_integer in_divisor,
+ acpi_integer * out_quotient, acpi_integer * out_remainder)
+{
+ ACPI_FUNCTION_TRACE(ut_divide);
+
+ /* Always check for a zero divisor */
+
+ if (in_divisor == 0) {
+ ACPI_ERROR((AE_INFO, "Divide by zero"));
+ return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
+ }
+
+ /* Return only what was requested */
+
+ if (out_quotient) {
+ *out_quotient = in_dividend / in_divisor;
+ }
+ if (out_remainder) {
+ *out_remainder = in_dividend % in_divisor;
+ }
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+#endif
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: utmisc - common utility procedures
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <linux/module.h>
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utmisc")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_validate_exception
+ *
+ * PARAMETERS: Status - The acpi_status code to be formatted
+ *
+ * RETURN: A string containing the exception text. NULL if exception is
+ * not valid.
+ *
+ * DESCRIPTION: This function validates and translates an ACPI exception into
+ * an ASCII string.
+ *
+ ******************************************************************************/
+const char *acpi_ut_validate_exception(acpi_status status)
+{
+ u32 sub_status;
+ const char *exception = NULL;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Status is composed of two parts, a "type" and an actual code
+ */
+ sub_status = (status & ~AE_CODE_MASK);
+
+ switch (status & AE_CODE_MASK) {
+ case AE_CODE_ENVIRONMENTAL:
+
+ if (sub_status <= AE_CODE_ENV_MAX) {
+ exception = acpi_gbl_exception_names_env[sub_status];
+ }
+ break;
+
+ case AE_CODE_PROGRAMMER:
+
+ if (sub_status <= AE_CODE_PGM_MAX) {
+ exception = acpi_gbl_exception_names_pgm[sub_status];
+ }
+ break;
+
+ case AE_CODE_ACPI_TABLES:
+
+ if (sub_status <= AE_CODE_TBL_MAX) {
+ exception = acpi_gbl_exception_names_tbl[sub_status];
+ }
+ break;
+
+ case AE_CODE_AML:
+
+ if (sub_status <= AE_CODE_AML_MAX) {
+ exception = acpi_gbl_exception_names_aml[sub_status];
+ }
+ break;
+
+ case AE_CODE_CONTROL:
+
+ if (sub_status <= AE_CODE_CTRL_MAX) {
+ exception = acpi_gbl_exception_names_ctrl[sub_status];
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return (ACPI_CAST_PTR(const char, exception));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_is_aml_table
+ *
+ * PARAMETERS: Table - An ACPI table
+ *
+ * RETURN: TRUE if table contains executable AML; FALSE otherwise
+ *
+ * DESCRIPTION: Check ACPI Signature for a table that contains AML code.
+ * Currently, these are DSDT,SSDT,PSDT. All other table types are
+ * data tables that do not contain AML code.
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
+{
+
+ /* These are the only tables that contain executable AML */
+
+ if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) ||
+ ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) ||
+ ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) {
+ return (TRUE);
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_allocate_owner_id
+ *
+ * PARAMETERS: owner_id - Where the new owner ID is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
+ * track objects created by the table or method, to be deleted
+ * when the method exits or the table is unloaded.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
+{
+ u32 i;
+ u32 j;
+ u32 k;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
+
+ /* Guard against multiple allocations of ID to the same location */
+
+ if (*owner_id) {
+ ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists",
+ *owner_id));
+ return_ACPI_STATUS(AE_ALREADY_EXISTS);
+ }
+
+ /* Mutex for the global ID mask */
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Find a free owner ID, cycle through all possible IDs on repeated
+ * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
+ * to be scanned twice.
+ */
+ for (i = 0, j = acpi_gbl_last_owner_id_index;
+ i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) {
+ if (j >= ACPI_NUM_OWNERID_MASKS) {
+ j = 0; /* Wraparound to start of mask array */
+ }
+
+ for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) {
+ if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) {
+
+ /* There are no free IDs in this mask */
+
+ break;
+ }
+
+ if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) {
+ /*
+ * Found a free ID. The actual ID is the bit index plus one,
+ * making zero an invalid Owner ID. Save this as the last ID
+ * allocated and update the global ID mask.
+ */
+ acpi_gbl_owner_id_mask[j] |= (1 << k);
+
+ acpi_gbl_last_owner_id_index = (u8) j;
+ acpi_gbl_next_owner_id_offset = (u8) (k + 1);
+
+ /*
+ * Construct encoded ID from the index and bit position
+ *
+ * Note: Last [j].k (bit 255) is never used and is marked
+ * permanently allocated (prevents +1 overflow)
+ */
+ *owner_id =
+ (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j));
+
+ ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
+ "Allocated OwnerId: %2.2X\n",
+ (unsigned int)*owner_id));
+ goto exit;
+ }
+ }
+
+ acpi_gbl_next_owner_id_offset = 0;
+ }
+
+ /*
+ * All owner_ids have been allocated. This typically should
+ * not happen since the IDs are reused after deallocation. The IDs are
+ * allocated upon table load (one per table) and method execution, and
+ * they are released when a table is unloaded or a method completes
+ * execution.
+ *
+ * If this error happens, there may be very deep nesting of invoked control
+ * methods, or there may be a bug where the IDs are not released.
+ */
+ status = AE_OWNER_ID_LIMIT;
+ ACPI_ERROR((AE_INFO,
+ "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
+
+ exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_release_owner_id
+ *
+ * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD
+ *
+ * RETURN: None. No error is returned because we are either exiting a
+ * control method or unloading a table. Either way, we would
+ * ignore any error anyway.
+ *
+ * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255
+ *
+ ******************************************************************************/
+
+void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
+{
+ acpi_owner_id owner_id = *owner_id_ptr;
+ acpi_status status;
+ u32 index;
+ u32 bit;
+
+ ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
+
+ /* Always clear the input owner_id (zero is an invalid ID) */
+
+ *owner_id_ptr = 0;
+
+ /* Zero is not a valid owner_iD */
+
+ if (owner_id == 0) {
+ ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id));
+ return_VOID;
+ }
+
+ /* Mutex for the global ID mask */
+
+ status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
+ if (ACPI_FAILURE(status)) {
+ return_VOID;
+ }
+
+ /* Normalize the ID to zero */
+
+ owner_id--;
+
+ /* Decode ID to index/offset pair */
+
+ index = ACPI_DIV_32(owner_id);
+ bit = 1 << ACPI_MOD_32(owner_id);
+
+ /* Free the owner ID only if it is valid */
+
+ if (acpi_gbl_owner_id_mask[index] & bit) {
+ acpi_gbl_owner_id_mask[index] ^= bit;
+ } else {
+ ACPI_ERROR((AE_INFO,
+ "Release of non-allocated OwnerId: %2.2X",
+ owner_id + 1));
+ }
+
+ (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_strupr (strupr)
+ *
+ * PARAMETERS: src_string - The source string to convert
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Convert string to uppercase
+ *
+ * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
+ *
+ ******************************************************************************/
+
+void acpi_ut_strupr(char *src_string)
+{
+ char *string;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if (!src_string) {
+ return;
+ }
+
+ /* Walk entire string, uppercasing the letters */
+
+ for (string = src_string; *string; string++) {
+ *string = (char)ACPI_TOUPPER(*string);
+ }
+
+ return;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_print_string
+ *
+ * PARAMETERS: String - Null terminated ASCII string
+ * max_length - Maximum output length
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
+ * sequences.
+ *
+ ******************************************************************************/
+
+void acpi_ut_print_string(char *string, u8 max_length)
+{
+ u32 i;
+
+ if (!string) {
+ acpi_os_printf("<\"NULL STRING PTR\">");
+ return;
+ }
+
+ acpi_os_printf("\"");
+ for (i = 0; string[i] && (i < max_length); i++) {
+
+ /* Escape sequences */
+
+ switch (string[i]) {
+ case 0x07:
+ acpi_os_printf("\\a"); /* BELL */
+ break;
+
+ case 0x08:
+ acpi_os_printf("\\b"); /* BACKSPACE */
+ break;
+
+ case 0x0C:
+ acpi_os_printf("\\f"); /* FORMFEED */
+ break;
+
+ case 0x0A:
+ acpi_os_printf("\\n"); /* LINEFEED */
+ break;
+
+ case 0x0D:
+ acpi_os_printf("\\r"); /* CARRIAGE RETURN */
+ break;
+
+ case 0x09:
+ acpi_os_printf("\\t"); /* HORIZONTAL TAB */
+ break;
+
+ case 0x0B:
+ acpi_os_printf("\\v"); /* VERTICAL TAB */
+ break;
+
+ case '\'': /* Single Quote */
+ case '\"': /* Double Quote */
+ case '\\': /* Backslash */
+ acpi_os_printf("\\%c", (int)string[i]);
+ break;
+
+ default:
+
+ /* Check for printable character or hex escape */
+
+ if (ACPI_IS_PRINT(string[i])) {
+ /* This is a normal character */
+
+ acpi_os_printf("%c", (int)string[i]);
+ } else {
+ /* All others will be Hex escapes */
+
+ acpi_os_printf("\\x%2.2X", (s32) string[i]);
+ }
+ break;
+ }
+ }
+ acpi_os_printf("\"");
+
+ if (i == max_length && string[i]) {
+ acpi_os_printf("...");
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_dword_byte_swap
+ *
+ * PARAMETERS: Value - Value to be converted
+ *
+ * RETURN: u32 integer with bytes swapped
+ *
+ * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes)
+ *
+ ******************************************************************************/
+
+u32 acpi_ut_dword_byte_swap(u32 value)
+{
+ union {
+ u32 value;
+ u8 bytes[4];
+ } out;
+ union {
+ u32 value;
+ u8 bytes[4];
+ } in;
+
+ ACPI_FUNCTION_ENTRY();
+
+ in.value = value;
+
+ out.bytes[0] = in.bytes[3];
+ out.bytes[1] = in.bytes[2];
+ out.bytes[2] = in.bytes[1];
+ out.bytes[3] = in.bytes[0];
+
+ return (out.value);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_set_integer_width
+ *
+ * PARAMETERS: Revision From DSDT header
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Set the global integer bit width based upon the revision
+ * of the DSDT. For Revision 1 and 0, Integers are 32 bits.
+ * For Revision 2 and above, Integers are 64 bits. Yes, this
+ * makes a difference.
+ *
+ ******************************************************************************/
+
+void acpi_ut_set_integer_width(u8 revision)
+{
+
+ if (revision < 2) {
+
+ /* 32-bit case */
+
+ acpi_gbl_integer_bit_width = 32;
+ acpi_gbl_integer_nybble_width = 8;
+ acpi_gbl_integer_byte_width = 4;
+ } else {
+ /* 64-bit case (ACPI 2.0+) */
+
+ acpi_gbl_integer_bit_width = 64;
+ acpi_gbl_integer_nybble_width = 16;
+ acpi_gbl_integer_byte_width = 8;
+ }
+}
+
+#ifdef ACPI_DEBUG_OUTPUT
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_display_init_pathname
+ *
+ * PARAMETERS: Type - Object type of the node
+ * obj_handle - Handle whose pathname will be displayed
+ * Path - Additional path string to be appended.
+ * (NULL if no extra path)
+ *
+ * RETURN: acpi_status
+ *
+ * DESCRIPTION: Display full pathname of an object, DEBUG ONLY
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_display_init_pathname(u8 type,
+ struct acpi_namespace_node *obj_handle,
+ char *path)
+{
+ acpi_status status;
+ struct acpi_buffer buffer;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Only print the path if the appropriate debug level is enabled */
+
+ if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
+ return;
+ }
+
+ /* Get the full pathname to the node */
+
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_ns_handle_to_pathname(obj_handle, &buffer);
+ if (ACPI_FAILURE(status)) {
+ return;
+ }
+
+ /* Print what we're doing */
+
+ switch (type) {
+ case ACPI_TYPE_METHOD:
+ acpi_os_printf("Executing ");
+ break;
+
+ default:
+ acpi_os_printf("Initializing ");
+ break;
+ }
+
+ /* Print the object type and pathname */
+
+ acpi_os_printf("%-12s %s",
+ acpi_ut_get_type_name(type), (char *)buffer.pointer);
+
+ /* Extra path is used to append names like _STA, _INI, etc. */
+
+ if (path) {
+ acpi_os_printf(".%s", path);
+ }
+ acpi_os_printf("\n");
+
+ ACPI_FREE(buffer.pointer);
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_valid_acpi_char
+ *
+ * PARAMETERS: Char - The character to be examined
+ * Position - Byte position (0-3)
+ *
+ * RETURN: TRUE if the character is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Check for a valid ACPI character. Must be one of:
+ * 1) Upper case alpha
+ * 2) numeric
+ * 3) underscore
+ *
+ * We allow a '!' as the last character because of the ASF! table
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_acpi_char(char character, u32 position)
+{
+
+ if (!((character >= 'A' && character <= 'Z') ||
+ (character >= '0' && character <= '9') || (character == '_'))) {
+
+ /* Allow a '!' in the last position */
+
+ if (character == '!' && position == 3) {
+ return (TRUE);
+ }
+
+ return (FALSE);
+ }
+
+ return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_valid_acpi_name
+ *
+ * PARAMETERS: Name - The name to be examined
+ *
+ * RETURN: TRUE if the name is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
+ * 1) Upper case alpha
+ * 2) numeric
+ * 3) underscore
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_acpi_name(u32 name)
+{
+ u32 i;
+
+ ACPI_FUNCTION_ENTRY();
+
+ for (i = 0; i < ACPI_NAME_SIZE; i++) {
+ if (!acpi_ut_valid_acpi_char
+ ((ACPI_CAST_PTR(char, &name))[i], i)) {
+ return (FALSE);
+ }
+ }
+
+ return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_repair_name
+ *
+ * PARAMETERS: Name - The ACPI name to be repaired
+ *
+ * RETURN: Repaired version of the name
+ *
+ * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
+ * return the new name.
+ *
+ ******************************************************************************/
+
+acpi_name acpi_ut_repair_name(char *name)
+{
+ u32 i;
+ char new_name[ACPI_NAME_SIZE];
+
+ for (i = 0; i < ACPI_NAME_SIZE; i++) {
+ new_name[i] = name[i];
+
+ /*
+ * Replace a bad character with something printable, yet technically
+ * still invalid. This prevents any collisions with existing "good"
+ * names in the namespace.
+ */
+ if (!acpi_ut_valid_acpi_char(name[i], i)) {
+ new_name[i] = '*';
+ }
+ }
+
+ return (*(u32 *) new_name);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_strtoul64
+ *
+ * PARAMETERS: String - Null terminated string
+ * Base - Radix of the string: 16 or ACPI_ANY_BASE;
+ * ACPI_ANY_BASE means 'in behalf of to_integer'
+ * ret_integer - Where the converted integer is returned
+ *
+ * RETURN: Status and Converted value
+ *
+ * DESCRIPTION: Convert a string into an unsigned value. Performs either a
+ * 32-bit or 64-bit conversion, depending on the current mode
+ * of the interpreter.
+ * NOTE: Does not support Octal strings, not needed.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
+{
+ u32 this_digit = 0;
+ acpi_integer return_value = 0;
+ acpi_integer quotient;
+ acpi_integer dividend;
+ u32 to_integer_op = (base == ACPI_ANY_BASE);
+ u32 mode32 = (acpi_gbl_integer_byte_width == 4);
+ u8 valid_digits = 0;
+ u8 sign_of0x = 0;
+ u8 term = 0;
+
+ ACPI_FUNCTION_TRACE_STR(ut_stroul64, string);
+
+ switch (base) {
+ case ACPI_ANY_BASE:
+ case 16:
+ break;
+
+ default:
+ /* Invalid Base */
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (!string) {
+ goto error_exit;
+ }
+
+ /* Skip over any white space in the buffer */
+
+ while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
+ string++;
+ }
+
+ if (to_integer_op) {
+ /*
+ * Base equal to ACPI_ANY_BASE means 'to_integer operation case'.
+ * We need to determine if it is decimal or hexadecimal.
+ */
+ if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
+ sign_of0x = 1;
+ base = 16;
+
+ /* Skip over the leading '0x' */
+ string += 2;
+ } else {
+ base = 10;
+ }
+ }
+
+ /* Any string left? Check that '0x' is not followed by white space. */
+
+ if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
+ if (to_integer_op) {
+ goto error_exit;
+ } else {
+ goto all_done;
+ }
+ }
+
+ /*
+ * Perform a 32-bit or 64-bit conversion, depending upon the current
+ * execution mode of the interpreter
+ */
+ dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
+
+ /* Main loop: convert the string to a 32- or 64-bit integer */
+
+ while (*string) {
+ if (ACPI_IS_DIGIT(*string)) {
+
+ /* Convert ASCII 0-9 to Decimal value */
+
+ this_digit = ((u8) * string) - '0';
+ } else if (base == 10) {
+
+ /* Digit is out of range; possible in to_integer case only */
+
+ term = 1;
+ } else {
+ this_digit = (u8) ACPI_TOUPPER(*string);
+ if (ACPI_IS_XDIGIT((char)this_digit)) {
+
+ /* Convert ASCII Hex char to value */
+
+ this_digit = this_digit - 'A' + 10;
+ } else {
+ term = 1;
+ }
+ }
+
+ if (term) {
+ if (to_integer_op) {
+ goto error_exit;
+ } else {
+ break;
+ }
+ } else if ((valid_digits == 0) && (this_digit == 0)
+ && !sign_of0x) {
+
+ /* Skip zeros */
+ string++;
+ continue;
+ }
+
+ valid_digits++;
+
+ if (sign_of0x && ((valid_digits > 16)
+ || ((valid_digits > 8) && mode32))) {
+ /*
+ * This is to_integer operation case.
+ * No any restrictions for string-to-integer conversion,
+ * see ACPI spec.
+ */
+ goto error_exit;
+ }
+
+ /* Divide the digit into the correct position */
+
+ (void)
+ acpi_ut_short_divide((dividend - (acpi_integer) this_digit),
+ base, "ient, NULL);
+
+ if (return_value > quotient) {
+ if (to_integer_op) {
+ goto error_exit;
+ } else {
+ break;
+ }
+ }
+
+ return_value *= base;
+ return_value += this_digit;
+ string++;
+ }
+
+ /* All done, normal exit */
+
+ all_done:
+
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(return_value)));
+
+ *ret_integer = return_value;
+ return_ACPI_STATUS(AE_OK);
+
+ error_exit:
+ /* Base was set/validated above */
+
+ if (base == 10) {
+ return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT);
+ } else {
+ return_ACPI_STATUS(AE_BAD_HEX_CONSTANT);
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_update_state_and_push
+ *
+ * PARAMETERS: Object - Object to be added to the new state
+ * Action - Increment/Decrement
+ * state_list - List the state will be added to
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new state and push it
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_create_update_state_and_push(union acpi_operand_object *object,
+ u16 action,
+ union acpi_generic_state **state_list)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /* Ignore null objects; these are expected */
+
+ if (!object) {
+ return (AE_OK);
+ }
+
+ state = acpi_ut_create_update_state(object, action);
+ if (!state) {
+ return (AE_NO_MEMORY);
+ }
+
+ acpi_ut_push_generic_state(state_list, state);
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_walk_package_tree
+ *
+ * PARAMETERS: source_object - The package to walk
+ * target_object - Target object (if package is being copied)
+ * walk_callback - Called once for each package element
+ * Context - Passed to the callback function
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk through a package
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
+ void *target_object,
+ acpi_pkg_callback walk_callback, void *context)
+{
+ acpi_status status = AE_OK;
+ union acpi_generic_state *state_list = NULL;
+ union acpi_generic_state *state;
+ u32 this_index;
+ union acpi_operand_object *this_source_obj;
+
+ ACPI_FUNCTION_TRACE(ut_walk_package_tree);
+
+ state = acpi_ut_create_pkg_state(source_object, target_object, 0);
+ if (!state) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ while (state) {
+
+ /* Get one element of the package */
+
+ this_index = state->pkg.index;
+ this_source_obj = (union acpi_operand_object *)
+ state->pkg.source_object->package.elements[this_index];
+
+ /*
+ * Check for:
+ * 1) An uninitialized package element. It is completely
+ * legal to declare a package and leave it uninitialized
+ * 2) Not an internal object - can be a namespace node instead
+ * 3) Any type other than a package. Packages are handled in else
+ * case below.
+ */
+ if ((!this_source_obj) ||
+ (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) !=
+ ACPI_DESC_TYPE_OPERAND)
+ || (ACPI_GET_OBJECT_TYPE(this_source_obj) !=
+ ACPI_TYPE_PACKAGE)) {
+ status =
+ walk_callback(ACPI_COPY_TYPE_SIMPLE,
+ this_source_obj, state, context);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ state->pkg.index++;
+ while (state->pkg.index >=
+ state->pkg.source_object->package.count) {
+ /*
+ * We've handled all of the objects at this level, This means
+ * that we have just completed a package. That package may
+ * have contained one or more packages itself.
+ *
+ * Delete this state and pop the previous state (package).
+ */
+ acpi_ut_delete_generic_state(state);
+ state = acpi_ut_pop_generic_state(&state_list);
+
+ /* Finished when there are no more states */
+
+ if (!state) {
+ /*
+ * We have handled all of the objects in the top level
+ * package just add the length of the package objects
+ * and exit
+ */
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /*
+ * Go back up a level and move the index past the just
+ * completed package object.
+ */
+ state->pkg.index++;
+ }
+ } else {
+ /* This is a subobject of type package */
+
+ status =
+ walk_callback(ACPI_COPY_TYPE_PACKAGE,
+ this_source_obj, state, context);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Push the current state and create a new one
+ * The callback above returned a new target package object.
+ */
+ acpi_ut_push_generic_state(&state_list, state);
+ state = acpi_ut_create_pkg_state(this_source_obj,
+ state->pkg.
+ this_target_obj, 0);
+ if (!state) {
+
+ /* Free any stacked Update State objects */
+
+ while (state_list) {
+ state =
+ acpi_ut_pop_generic_state
+ (&state_list);
+ acpi_ut_delete_generic_state(state);
+ }
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+ }
+ }
+
+ /* We should never get here */
+
+ return_ACPI_STATUS(AE_AML_INTERNAL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info
+ *
+ * PARAMETERS: module_name - Caller's module name (for error output)
+ * line_number - Caller's line number (for error output)
+ * Format - Printf format string + additional args
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Print message with module/line/version info
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_error(const char *module_name, u32 line_number, const char *format, ...)
+{
+ va_list args;
+
+ acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
+ va_end(args);
+}
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_exception(const char *module_name,
+ u32 line_number, acpi_status status, const char *format, ...)
+{
+ va_list args;
+
+ acpi_os_printf("ACPI Exception (%s-%04d): %s, ", module_name,
+ line_number, acpi_format_exception(status));
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
+ va_end(args);
+}
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
+{
+ va_list args;
+
+ acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number);
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
+ va_end(args);
+}
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_info(const char *module_name, u32 line_number, const char *format, ...)
+{
+ va_list args;
+
+ /*
+ * Removed module_name, line_number, and acpica version, not needed
+ * for info output
+ */
+ acpi_os_printf("ACPI: ");
+
+ va_start(args, format);
+ acpi_os_vprintf(format, args);
+ acpi_os_printf("\n");
+ va_end(args);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_error)
+ACPI_EXPORT_SYMBOL(acpi_exception)
+ACPI_EXPORT_SYMBOL(acpi_warning)
+ACPI_EXPORT_SYMBOL(acpi_info)
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: utmutex - local mutex support
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utmutex")
+
+/* Local prototypes */
+static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id);
+
+static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_mutex_initialize
+ *
+ * PARAMETERS: None.
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create the system mutex objects.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_mutex_initialize(void)
+{
+ u32 i;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_mutex_initialize);
+
+ /*
+ * Create each of the predefined mutex objects
+ */
+ for (i = 0; i < ACPI_NUM_MUTEX; i++) {
+ status = acpi_ut_create_mutex(i);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /* Create the spinlocks for use at interrupt level */
+
+ spin_lock_init(acpi_gbl_gpe_lock);
+ spin_lock_init(acpi_gbl_hardware_lock);
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_mutex_terminate
+ *
+ * PARAMETERS: None.
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Delete all of the system mutex objects.
+ *
+ ******************************************************************************/
+
+void acpi_ut_mutex_terminate(void)
+{
+ u32 i;
+
+ ACPI_FUNCTION_TRACE(ut_mutex_terminate);
+
+ /*
+ * Delete each predefined mutex object
+ */
+ for (i = 0; i < ACPI_NUM_MUTEX; i++) {
+ (void)acpi_ut_delete_mutex(i);
+ }
+
+ /* Delete the spinlocks */
+
+ acpi_os_delete_lock(acpi_gbl_gpe_lock);
+ acpi_os_delete_lock(acpi_gbl_hardware_lock);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_mutex
+ *
+ * PARAMETERS: mutex_iD - ID of the mutex to be created
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a mutex object.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id);
+
+ if (mutex_id > ACPI_MAX_MUTEX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ if (!acpi_gbl_mutex_info[mutex_id].mutex) {
+ status =
+ acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex);
+ acpi_gbl_mutex_info[mutex_id].thread_id =
+ ACPI_MUTEX_NOT_ACQUIRED;
+ acpi_gbl_mutex_info[mutex_id].use_count = 0;
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_delete_mutex
+ *
+ * PARAMETERS: mutex_iD - ID of the mutex to be deleted
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Delete a mutex object.
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
+{
+
+ ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id);
+
+ if (mutex_id > ACPI_MAX_MUTEX) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
+
+ acpi_gbl_mutex_info[mutex_id].mutex = NULL;
+ acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_acquire_mutex
+ *
+ * PARAMETERS: mutex_iD - ID of the mutex to be acquired
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Acquire a mutex object.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
+{
+ acpi_status status;
+ acpi_thread_id this_thread_id;
+
+ ACPI_FUNCTION_NAME(ut_acquire_mutex);
+
+ if (mutex_id > ACPI_MAX_MUTEX) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ this_thread_id = acpi_os_get_thread_id();
+
+#ifdef ACPI_MUTEX_DEBUG
+ {
+ u32 i;
+ /*
+ * Mutex debug code, for internal debugging only.
+ *
+ * Deadlock prevention. Check if this thread owns any mutexes of value
+ * greater than or equal to this one. If so, the thread has violated
+ * the mutex ordering rule. This indicates a coding error somewhere in
+ * the ACPI subsystem code.
+ */
+ for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
+ if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
+ if (i == mutex_id) {
+ ACPI_ERROR((AE_INFO,
+ "Mutex [%s] already acquired by this thread [%X]",
+ acpi_ut_get_mutex_name
+ (mutex_id),
+ this_thread_id));
+
+ return (AE_ALREADY_ACQUIRED);
+ }
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid acquire order: Thread %X owns [%s], wants [%s]",
+ this_thread_id,
+ acpi_ut_get_mutex_name(i),
+ acpi_ut_get_mutex_name(mutex_id)));
+
+ return (AE_ACQUIRE_DEADLOCK);
+ }
+ }
+ }
+#endif
+
+ ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
+ "Thread %lX attempting to acquire Mutex [%s]\n",
+ (unsigned long)this_thread_id,
+ acpi_ut_get_mutex_name(mutex_id)));
+
+ status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
+ ACPI_WAIT_FOREVER);
+ if (ACPI_SUCCESS(status)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
+ "Thread %lX acquired Mutex [%s]\n",
+ (unsigned long)this_thread_id,
+ acpi_ut_get_mutex_name(mutex_id)));
+
+ acpi_gbl_mutex_info[mutex_id].use_count++;
+ acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id;
+ } else {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Thread %lX could not acquire Mutex [%X]",
+ (unsigned long)this_thread_id, mutex_id));
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_release_mutex
+ *
+ * PARAMETERS: mutex_iD - ID of the mutex to be released
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Release a mutex object.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
+{
+ acpi_thread_id this_thread_id;
+
+ ACPI_FUNCTION_NAME(ut_release_mutex);
+
+ this_thread_id = acpi_os_get_thread_id();
+ ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
+ "Thread %lX releasing Mutex [%s]\n",
+ (unsigned long)this_thread_id,
+ acpi_ut_get_mutex_name(mutex_id)));
+
+ if (mutex_id > ACPI_MAX_MUTEX) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Mutex must be acquired in order to release it!
+ */
+ if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) {
+ ACPI_ERROR((AE_INFO,
+ "Mutex [%X] is not acquired, cannot release",
+ mutex_id));
+
+ return (AE_NOT_ACQUIRED);
+ }
+#ifdef ACPI_MUTEX_DEBUG
+ {
+ u32 i;
+ /*
+ * Mutex debug code, for internal debugging only.
+ *
+ * Deadlock prevention. Check if this thread owns any mutexes of value
+ * greater than this one. If so, the thread has violated the mutex
+ * ordering rule. This indicates a coding error somewhere in
+ * the ACPI subsystem code.
+ */
+ for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
+ if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
+ if (i == mutex_id) {
+ continue;
+ }
+
+ ACPI_ERROR((AE_INFO,
+ "Invalid release order: owns [%s], releasing [%s]",
+ acpi_ut_get_mutex_name(i),
+ acpi_ut_get_mutex_name(mutex_id)));
+
+ return (AE_RELEASE_DEADLOCK);
+ }
+ }
+ }
+#endif
+
+ /* Mark unlocked FIRST */
+
+ acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+
+ acpi_os_release_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
+ return (AE_OK);
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utobject - ACPI object create/delete/size/cache routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acnamesp.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utobject")
+
+/* Local prototypes */
+static acpi_status
+acpi_ut_get_simple_object_size(union acpi_operand_object *obj,
+ acpi_size * obj_length);
+
+static acpi_status
+acpi_ut_get_package_object_size(union acpi_operand_object *obj,
+ acpi_size * obj_length);
+
+static acpi_status
+acpi_ut_get_element_length(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state, void *context);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_internal_object_dbg
+ *
+ * PARAMETERS: module_name - Source file name of caller
+ * line_number - Line number of caller
+ * component_id - Component type of caller
+ * Type - ACPI Type of the new object
+ *
+ * RETURN: A new internal object, null on failure
+ *
+ * DESCRIPTION: Create and initialize a new internal object.
+ *
+ * NOTE: We always allocate the worst-case object descriptor because
+ * these objects are cached, and we want them to be
+ * one-size-satisifies-any-request. This in itself may not be
+ * the most memory efficient, but the efficiency of the object
+ * cache should more than make up for this!
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
+ *module_name,
+ u32 line_number,
+ u32 component_id,
+ acpi_object_type
+ type)
+{
+ union acpi_operand_object *object;
+ union acpi_operand_object *second_object;
+
+ ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg,
+ acpi_ut_get_type_name(type));
+
+ /* Allocate the raw object descriptor */
+
+ object =
+ acpi_ut_allocate_object_desc_dbg(module_name, line_number,
+ component_id);
+ if (!object) {
+ return_PTR(NULL);
+ }
+
+ switch (type) {
+ case ACPI_TYPE_REGION:
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+
+ /* These types require a secondary object */
+
+ second_object = acpi_ut_allocate_object_desc_dbg(module_name,
+ line_number,
+ component_id);
+ if (!second_object) {
+ acpi_ut_delete_object_desc(object);
+ return_PTR(NULL);
+ }
+
+ second_object->common.type = ACPI_TYPE_LOCAL_EXTRA;
+ second_object->common.reference_count = 1;
+
+ /* Link the second object to the first */
+
+ object->common.next_object = second_object;
+ break;
+
+ default:
+ /* All others have no secondary object */
+ break;
+ }
+
+ /* Save the object type in the object descriptor */
+
+ object->common.type = (u8) type;
+
+ /* Init the reference count */
+
+ object->common.reference_count = 1;
+
+ /* Any per-type initialization should go here */
+
+ return_PTR(object);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_package_object
+ *
+ * PARAMETERS: Count - Number of package elements
+ *
+ * RETURN: Pointer to a new Package object, null on failure
+ *
+ * DESCRIPTION: Create a fully initialized package object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_package_object(u32 count)
+{
+ union acpi_operand_object *package_desc;
+ union acpi_operand_object **package_elements;
+
+ ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count);
+
+ /* Create a new Package object */
+
+ package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
+ if (!package_desc) {
+ return_PTR(NULL);
+ }
+
+ /*
+ * Create the element array. Count+1 allows the array to be null
+ * terminated.
+ */
+ package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count +
+ 1) * sizeof(void *));
+ if (!package_elements) {
+ acpi_ut_remove_reference(package_desc);
+ return_PTR(NULL);
+ }
+
+ package_desc->package.count = count;
+ package_desc->package.elements = package_elements;
+ return_PTR(package_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_buffer_object
+ *
+ * PARAMETERS: buffer_size - Size of buffer to be created
+ *
+ * RETURN: Pointer to a new Buffer object, null on failure
+ *
+ * DESCRIPTION: Create a fully initialized buffer object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
+{
+ union acpi_operand_object *buffer_desc;
+ u8 *buffer = NULL;
+
+ ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size);
+
+ /* Create a new Buffer object */
+
+ buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
+ if (!buffer_desc) {
+ return_PTR(NULL);
+ }
+
+ /* Create an actual buffer only if size > 0 */
+
+ if (buffer_size > 0) {
+
+ /* Allocate the actual buffer */
+
+ buffer = ACPI_ALLOCATE_ZEROED(buffer_size);
+ if (!buffer) {
+ ACPI_ERROR((AE_INFO, "Could not allocate size %X",
+ (u32) buffer_size));
+ acpi_ut_remove_reference(buffer_desc);
+ return_PTR(NULL);
+ }
+ }
+
+ /* Complete buffer object initialization */
+
+ buffer_desc->buffer.flags |= AOPOBJ_DATA_VALID;
+ buffer_desc->buffer.pointer = buffer;
+ buffer_desc->buffer.length = (u32) buffer_size;
+
+ /* Return the new buffer descriptor */
+
+ return_PTR(buffer_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_string_object
+ *
+ * PARAMETERS: string_size - Size of string to be created. Does not
+ * include NULL terminator, this is added
+ * automatically.
+ *
+ * RETURN: Pointer to a new String object
+ *
+ * DESCRIPTION: Create a fully initialized string object
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
+{
+ union acpi_operand_object *string_desc;
+ char *string;
+
+ ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size);
+
+ /* Create a new String object */
+
+ string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING);
+ if (!string_desc) {
+ return_PTR(NULL);
+ }
+
+ /*
+ * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
+ * NOTE: Zero-length strings are NULL terminated
+ */
+ string = ACPI_ALLOCATE_ZEROED(string_size + 1);
+ if (!string) {
+ ACPI_ERROR((AE_INFO, "Could not allocate size %X",
+ (u32) string_size));
+ acpi_ut_remove_reference(string_desc);
+ return_PTR(NULL);
+ }
+
+ /* Complete string object initialization */
+
+ string_desc->string.pointer = string;
+ string_desc->string.length = (u32) string_size;
+
+ /* Return the new string descriptor */
+
+ return_PTR(string_desc);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_valid_internal_object
+ *
+ * PARAMETERS: Object - Object to be validated
+ *
+ * RETURN: TRUE if object is valid, FALSE otherwise
+ *
+ * DESCRIPTION: Validate a pointer to be an union acpi_operand_object
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_valid_internal_object(void *object)
+{
+
+ ACPI_FUNCTION_NAME(ut_valid_internal_object);
+
+ /* Check for a null pointer */
+
+ if (!object) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Null Object Ptr\n"));
+ return (FALSE);
+ }
+
+ /* Check the descriptor type field */
+
+ switch (ACPI_GET_DESCRIPTOR_TYPE(object)) {
+ case ACPI_DESC_TYPE_OPERAND:
+
+ /* The object appears to be a valid union acpi_operand_object */
+
+ return (TRUE);
+
+ default:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "%p is not not an ACPI operand obj [%s]\n",
+ object, acpi_ut_get_descriptor_name(object)));
+ break;
+ }
+
+ return (FALSE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_allocate_object_desc_dbg
+ *
+ * PARAMETERS: module_name - Caller's module name (for error output)
+ * line_number - Caller's line number (for error output)
+ * component_id - Caller's component ID (for error output)
+ *
+ * RETURN: Pointer to newly allocated object descriptor. Null on error
+ *
+ * DESCRIPTION: Allocate a new object descriptor. Gracefully handle
+ * error conditions.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
+ u32 line_number, u32 component_id)
+{
+ union acpi_operand_object *object;
+
+ ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg);
+
+ object = acpi_os_acquire_object(acpi_gbl_operand_cache);
+ if (!object) {
+ ACPI_ERROR((module_name, line_number,
+ "Could not allocate an object descriptor"));
+
+ return_PTR(NULL);
+ }
+
+ /* Mark the descriptor type */
+
+ memset(object, 0, sizeof(union acpi_operand_object));
+ ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
+
+ ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
+ object, (u32) sizeof(union acpi_operand_object)));
+
+ return_PTR(object);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_delete_object_desc
+ *
+ * PARAMETERS: Object - An Acpi internal object to be deleted
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache
+ *
+ ******************************************************************************/
+
+void acpi_ut_delete_object_desc(union acpi_operand_object *object)
+{
+ ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object);
+
+ /* Object must be an union acpi_operand_object */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
+ ACPI_ERROR((AE_INFO,
+ "%p is not an ACPI Operand object [%s]", object,
+ acpi_ut_get_descriptor_name(object)));
+ return_VOID;
+ }
+
+ (void)acpi_os_release_object(acpi_gbl_operand_cache, object);
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_simple_object_size
+ *
+ * PARAMETERS: internal_object - An ACPI operand object
+ * obj_length - Where the length is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to determine the space required to
+ * contain a simple object for return to an external user.
+ *
+ * The length includes the object structure plus any additional
+ * needed space.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
+ acpi_size * obj_length)
+{
+ acpi_size length;
+ acpi_size size;
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
+
+ /*
+ * Handle a null object (Could be a uninitialized package
+ * element -- which is legal)
+ */
+ if (!internal_object) {
+ *obj_length = sizeof(union acpi_object);
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Start with the length of the Acpi object */
+
+ length = sizeof(union acpi_object);
+
+ if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
+
+ /* Object is a named object (reference), just return the length */
+
+ *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * The final length depends on the object type
+ * Strings and Buffers are packed right up against the parent object and
+ * must be accessed bytewise or there may be alignment problems on
+ * certain processors
+ */
+ switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
+ case ACPI_TYPE_STRING:
+
+ length += (acpi_size) internal_object->string.length + 1;
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ length += (acpi_size) internal_object->buffer.length;
+ break;
+
+ case ACPI_TYPE_INTEGER:
+ case ACPI_TYPE_PROCESSOR:
+ case ACPI_TYPE_POWER:
+
+ /* No extra data for these types */
+
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ switch (internal_object->reference.class) {
+ case ACPI_REFCLASS_NAME:
+
+ /*
+ * Get the actual length of the full pathname to this object.
+ * The reference will be converted to the pathname to the object
+ */
+ size =
+ acpi_ns_get_pathname_length(internal_object->
+ reference.node);
+ if (!size) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
+ length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
+ break;
+
+ default:
+
+ /*
+ * No other reference opcodes are supported.
+ * Notably, Locals and Args are not supported, but this may be
+ * required eventually.
+ */
+ ACPI_ERROR((AE_INFO,
+ "Cannot convert to external object - "
+ "unsupported Reference Class [%s] %X in object %p",
+ acpi_ut_get_reference_name(internal_object),
+ internal_object->reference.class,
+ internal_object));
+ status = AE_TYPE;
+ break;
+ }
+ break;
+
+ default:
+
+ ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
+ "unsupported type [%s] %X in object %p",
+ acpi_ut_get_object_type_name(internal_object),
+ ACPI_GET_OBJECT_TYPE(internal_object),
+ internal_object));
+ status = AE_TYPE;
+ break;
+ }
+
+ /*
+ * Account for the space required by the object rounded up to the next
+ * multiple of the machine word size. This keeps each object aligned
+ * on a machine word boundary. (preventing alignment faults on some
+ * machines.)
+ */
+ *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_element_length
+ *
+ * PARAMETERS: acpi_pkg_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get the length of one package element.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_element_length(u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state, void *context)
+{
+ acpi_status status = AE_OK;
+ struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
+ acpi_size object_space;
+
+ switch (object_type) {
+ case ACPI_COPY_TYPE_SIMPLE:
+
+ /*
+ * Simple object - just get the size (Null object/entry is handled
+ * here also) and sum it into the running package length
+ */
+ status =
+ acpi_ut_get_simple_object_size(source_object,
+ &object_space);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ info->length += object_space;
+ break;
+
+ case ACPI_COPY_TYPE_PACKAGE:
+
+ /* Package object - nothing much to do here, let the walk handle it */
+
+ info->num_packages++;
+ state->pkg.this_target_obj = NULL;
+ break;
+
+ default:
+
+ /* No other types allowed */
+
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_package_object_size
+ *
+ * PARAMETERS: internal_object - An ACPI internal object
+ * obj_length - Where the length is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to determine the space required to
+ * contain a package object for return to an external user.
+ *
+ * This is moderately complex since a package contains other
+ * objects including packages.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
+ acpi_size * obj_length)
+{
+ acpi_status status;
+ struct acpi_pkg_info info;
+
+ ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
+
+ info.length = 0;
+ info.object_space = 0;
+ info.num_packages = 1;
+
+ status = acpi_ut_walk_package_tree(internal_object, NULL,
+ acpi_ut_get_element_length, &info);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * We have handled all of the objects in all levels of the package.
+ * just add the length of the package objects themselves.
+ * Round up to the next machine word.
+ */
+ info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
+ (acpi_size) info.num_packages;
+
+ /* Return the total package length */
+
+ *obj_length = info.length;
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_object_size
+ *
+ * PARAMETERS: internal_object - An ACPI internal object
+ * obj_length - Where the length will be returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to determine the space required to
+ * contain an object for return to an API user.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_get_object_size(union acpi_operand_object *internal_object,
+ acpi_size * obj_length)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_ENTRY();
+
+ if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) ==
+ ACPI_DESC_TYPE_OPERAND)
+ && (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE)) {
+ status =
+ acpi_ut_get_package_object_size(internal_object,
+ obj_length);
+ } else {
+ status =
+ acpi_ut_get_simple_object_size(internal_object, obj_length);
+ }
+
+ return (status);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: utresrc - Resource management utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/amlresrc.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utresrc")
+#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)
+/*
+ * Strings used to decode resource descriptors.
+ * Used by both the disasssembler and the debugger resource dump routines
+ */
+const char *acpi_gbl_bm_decode[] = {
+ "NotBusMaster",
+ "BusMaster"
+};
+
+const char *acpi_gbl_config_decode[] = {
+ "0 - Good Configuration",
+ "1 - Acceptable Configuration",
+ "2 - Suboptimal Configuration",
+ "3 - ***Invalid Configuration***",
+};
+
+const char *acpi_gbl_consume_decode[] = {
+ "ResourceProducer",
+ "ResourceConsumer"
+};
+
+const char *acpi_gbl_dec_decode[] = {
+ "PosDecode",
+ "SubDecode"
+};
+
+const char *acpi_gbl_he_decode[] = {
+ "Level",
+ "Edge"
+};
+
+const char *acpi_gbl_io_decode[] = {
+ "Decode10",
+ "Decode16"
+};
+
+const char *acpi_gbl_ll_decode[] = {
+ "ActiveHigh",
+ "ActiveLow"
+};
+
+const char *acpi_gbl_max_decode[] = {
+ "MaxNotFixed",
+ "MaxFixed"
+};
+
+const char *acpi_gbl_mem_decode[] = {
+ "NonCacheable",
+ "Cacheable",
+ "WriteCombining",
+ "Prefetchable"
+};
+
+const char *acpi_gbl_min_decode[] = {
+ "MinNotFixed",
+ "MinFixed"
+};
+
+const char *acpi_gbl_mtp_decode[] = {
+ "AddressRangeMemory",
+ "AddressRangeReserved",
+ "AddressRangeACPI",
+ "AddressRangeNVS"
+};
+
+const char *acpi_gbl_rng_decode[] = {
+ "InvalidRanges",
+ "NonISAOnlyRanges",
+ "ISAOnlyRanges",
+ "EntireRange"
+};
+
+const char *acpi_gbl_rw_decode[] = {
+ "ReadOnly",
+ "ReadWrite"
+};
+
+const char *acpi_gbl_shr_decode[] = {
+ "Exclusive",
+ "Shared"
+};
+
+const char *acpi_gbl_siz_decode[] = {
+ "Transfer8",
+ "Transfer8_16",
+ "Transfer16",
+ "InvalidSize"
+};
+
+const char *acpi_gbl_trs_decode[] = {
+ "DenseTranslation",
+ "SparseTranslation"
+};
+
+const char *acpi_gbl_ttp_decode[] = {
+ "TypeStatic",
+ "TypeTranslation"
+};
+
+const char *acpi_gbl_typ_decode[] = {
+ "Compatibility",
+ "TypeA",
+ "TypeB",
+ "TypeF"
+};
+
+#endif
+
+/*
+ * Base sizes of the raw AML resource descriptors, indexed by resource type.
+ * Zero indicates a reserved (and therefore invalid) resource type.
+ */
+const u8 acpi_gbl_resource_aml_sizes[] = {
+ /* Small descriptors */
+
+ 0,
+ 0,
+ 0,
+ 0,
+ ACPI_AML_SIZE_SMALL(struct aml_resource_irq),
+ ACPI_AML_SIZE_SMALL(struct aml_resource_dma),
+ ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent),
+ ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent),
+ ACPI_AML_SIZE_SMALL(struct aml_resource_io),
+ ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io),
+ 0,
+ 0,
+ 0,
+ 0,
+ ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small),
+ ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag),
+
+ /* Large descriptors */
+
+ 0,
+ ACPI_AML_SIZE_LARGE(struct aml_resource_memory24),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register),
+ 0,
+ ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_memory32),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_address32),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_address16),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_address64),
+ ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64)
+};
+
+/*
+ * Resource types, used to validate the resource length field.
+ * The length of fixed-length types must match exactly, variable
+ * lengths must meet the minimum required length, etc.
+ * Zero indicates a reserved (and therefore invalid) resource type.
+ */
+static const u8 acpi_gbl_resource_types[] = {
+ /* Small descriptors */
+
+ 0,
+ 0,
+ 0,
+ 0,
+ ACPI_SMALL_VARIABLE_LENGTH,
+ ACPI_FIXED_LENGTH,
+ ACPI_SMALL_VARIABLE_LENGTH,
+ ACPI_FIXED_LENGTH,
+ ACPI_FIXED_LENGTH,
+ ACPI_FIXED_LENGTH,
+ 0,
+ 0,
+ 0,
+ 0,
+ ACPI_VARIABLE_LENGTH,
+ ACPI_FIXED_LENGTH,
+
+ /* Large descriptors */
+
+ 0,
+ ACPI_FIXED_LENGTH,
+ ACPI_FIXED_LENGTH,
+ 0,
+ ACPI_VARIABLE_LENGTH,
+ ACPI_FIXED_LENGTH,
+ ACPI_FIXED_LENGTH,
+ ACPI_VARIABLE_LENGTH,
+ ACPI_VARIABLE_LENGTH,
+ ACPI_VARIABLE_LENGTH,
+ ACPI_VARIABLE_LENGTH,
+ ACPI_FIXED_LENGTH
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_walk_aml_resources
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML resource template
+ * aml_length - Length of the entire template
+ * user_function - Called once for each descriptor found. If
+ * NULL, a pointer to the end_tag is returned
+ * Context - Passed to user_function
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Walk a raw AML resource list(buffer). User function called
+ * once for each resource found.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_walk_aml_resources(u8 * aml,
+ acpi_size aml_length,
+ acpi_walk_aml_callback user_function, void **context)
+{
+ acpi_status status;
+ u8 *end_aml;
+ u8 resource_index;
+ u32 length;
+ u32 offset = 0;
+
+ ACPI_FUNCTION_TRACE(ut_walk_aml_resources);
+
+ /* The absolute minimum resource template is one end_tag descriptor */
+
+ if (aml_length < sizeof(struct aml_resource_end_tag)) {
+ return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+ }
+
+ /* Point to the end of the resource template buffer */
+
+ end_aml = aml + aml_length;
+
+ /* Walk the byte list, abort on any invalid descriptor type or length */
+
+ while (aml < end_aml) {
+
+ /* Validate the Resource Type and Resource Length */
+
+ status = acpi_ut_validate_resource(aml, &resource_index);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Get the length of this descriptor */
+
+ length = acpi_ut_get_descriptor_length(aml);
+
+ /* Invoke the user function */
+
+ if (user_function) {
+ status =
+ user_function(aml, length, offset, resource_index,
+ context);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ /* An end_tag descriptor terminates this resource template */
+
+ if (acpi_ut_get_resource_type(aml) ==
+ ACPI_RESOURCE_NAME_END_TAG) {
+ /*
+ * There must be at least one more byte in the buffer for
+ * the 2nd byte of the end_tag
+ */
+ if ((aml + 1) >= end_aml) {
+ return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
+ }
+
+ /* Return the pointer to the end_tag if requested */
+
+ if (!user_function) {
+ *context = aml;
+ }
+
+ /* Normal exit */
+
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ aml += length;
+ offset += length;
+ }
+
+ /* Did not find an end_tag descriptor */
+
+ return (AE_AML_NO_RESOURCE_END_TAG);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_validate_resource
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
+ * return_index - Where the resource index is returned. NULL
+ * if the index is not required.
+ *
+ * RETURN: Status, and optionally the Index into the global resource tables
+ *
+ * DESCRIPTION: Validate an AML resource descriptor by checking the Resource
+ * Type and Resource Length. Returns an index into the global
+ * resource information/dispatch tables for later use.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
+{
+ u8 resource_type;
+ u8 resource_index;
+ acpi_rs_length resource_length;
+ acpi_rs_length minimum_resource_length;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * 1) Validate the resource_type field (Byte 0)
+ */
+ resource_type = ACPI_GET8(aml);
+
+ /*
+ * Byte 0 contains the descriptor name (Resource Type)
+ * Examine the large/small bit in the resource header
+ */
+ if (resource_type & ACPI_RESOURCE_NAME_LARGE) {
+
+ /* Verify the large resource type (name) against the max */
+
+ if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) {
+ return (AE_AML_INVALID_RESOURCE_TYPE);
+ }
+
+ /*
+ * Large Resource Type -- bits 6:0 contain the name
+ * Translate range 0x80-0x8B to index range 0x10-0x1B
+ */
+ resource_index = (u8) (resource_type - 0x70);
+ } else {
+ /*
+ * Small Resource Type -- bits 6:3 contain the name
+ * Shift range to index range 0x00-0x0F
+ */
+ resource_index = (u8)
+ ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3);
+ }
+
+ /* Check validity of the resource type, zero indicates name is invalid */
+
+ if (!acpi_gbl_resource_types[resource_index]) {
+ return (AE_AML_INVALID_RESOURCE_TYPE);
+ }
+
+ /*
+ * 2) Validate the resource_length field. This ensures that the length
+ * is at least reasonable, and guarantees that it is non-zero.
+ */
+ resource_length = acpi_ut_get_resource_length(aml);
+ minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index];
+
+ /* Validate based upon the type of resource - fixed length or variable */
+
+ switch (acpi_gbl_resource_types[resource_index]) {
+ case ACPI_FIXED_LENGTH:
+
+ /* Fixed length resource, length must match exactly */
+
+ if (resource_length != minimum_resource_length) {
+ return (AE_AML_BAD_RESOURCE_LENGTH);
+ }
+ break;
+
+ case ACPI_VARIABLE_LENGTH:
+
+ /* Variable length resource, length must be at least the minimum */
+
+ if (resource_length < minimum_resource_length) {
+ return (AE_AML_BAD_RESOURCE_LENGTH);
+ }
+ break;
+
+ case ACPI_SMALL_VARIABLE_LENGTH:
+
+ /* Small variable length resource, length can be (Min) or (Min-1) */
+
+ if ((resource_length > minimum_resource_length) ||
+ (resource_length < (minimum_resource_length - 1))) {
+ return (AE_AML_BAD_RESOURCE_LENGTH);
+ }
+ break;
+
+ default:
+
+ /* Shouldn't happen (because of validation earlier), but be sure */
+
+ return (AE_AML_INVALID_RESOURCE_TYPE);
+ }
+
+ /* Optionally return the resource table index */
+
+ if (return_index) {
+ *return_index = resource_index;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_resource_type
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
+ *
+ * RETURN: The Resource Type with no extraneous bits (except the
+ * Large/Small descriptor bit -- this is left alone)
+ *
+ * DESCRIPTION: Extract the Resource Type/Name from the first byte of
+ * a resource descriptor.
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_get_resource_type(void *aml)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Byte 0 contains the descriptor name (Resource Type)
+ * Examine the large/small bit in the resource header
+ */
+ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
+
+ /* Large Resource Type -- bits 6:0 contain the name */
+
+ return (ACPI_GET8(aml));
+ } else {
+ /* Small Resource Type -- bits 6:3 contain the name */
+
+ return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_resource_length
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
+ *
+ * RETURN: Byte Length
+ *
+ * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By
+ * definition, this does not include the size of the descriptor
+ * header or the length field itself.
+ *
+ ******************************************************************************/
+
+u16 acpi_ut_get_resource_length(void *aml)
+{
+ acpi_rs_length resource_length;
+
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Byte 0 contains the descriptor name (Resource Type)
+ * Examine the large/small bit in the resource header
+ */
+ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
+
+ /* Large Resource type -- bytes 1-2 contain the 16-bit length */
+
+ ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1));
+
+ } else {
+ /* Small Resource type -- bits 2:0 of byte 0 contain the length */
+
+ resource_length = (u16) (ACPI_GET8(aml) &
+ ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK);
+ }
+
+ return (resource_length);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_resource_header_length
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
+ *
+ * RETURN: Length of the AML header (depends on large/small descriptor)
+ *
+ * DESCRIPTION: Get the length of the header for this resource.
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_get_resource_header_length(void *aml)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /* Examine the large/small bit in the resource header */
+
+ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
+ return (sizeof(struct aml_resource_large_header));
+ } else {
+ return (sizeof(struct aml_resource_small_header));
+ }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_descriptor_length
+ *
+ * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
+ *
+ * RETURN: Byte length
+ *
+ * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the
+ * length of the descriptor header and the length field itself.
+ * Used to walk descriptor lists.
+ *
+ ******************************************************************************/
+
+u32 acpi_ut_get_descriptor_length(void *aml)
+{
+ ACPI_FUNCTION_ENTRY();
+
+ /*
+ * Get the Resource Length (does not include header length) and add
+ * the header length (depends on if this is a small or large resource)
+ */
+ return (acpi_ut_get_resource_length(aml) +
+ acpi_ut_get_resource_header_length(aml));
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_resource_end_tag
+ *
+ * PARAMETERS: obj_desc - The resource template buffer object
+ * end_tag - Where the pointer to the end_tag is returned
+ *
+ * RETURN: Status, pointer to the end tag
+ *
+ * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template
+ * Note: allows a buffer length of zero.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc,
+ u8 ** end_tag)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ut_get_resource_end_tag);
+
+ /* Allow a buffer length of zero */
+
+ if (!obj_desc->buffer.length) {
+ *end_tag = obj_desc->buffer.pointer;
+ return_ACPI_STATUS(AE_OK);
+ }
+
+ /* Validate the template and get a pointer to the end_tag */
+
+ status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer,
+ obj_desc->buffer.length, NULL,
+ (void **)end_tag);
+
+ return_ACPI_STATUS(status);
+}
--- /dev/null
+/*******************************************************************************
+ *
+ * Module Name: utstate - state object support procedures
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utstate")
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_pkg_state_and_push
+ *
+ * PARAMETERS: Object - Object to be added to the new state
+ * Action - Increment/Decrement
+ * state_list - List the state will be added to
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a new state and push it
+ *
+ ******************************************************************************/
+acpi_status
+acpi_ut_create_pkg_state_and_push(void *internal_object,
+ void *external_object,
+ u16 index,
+ union acpi_generic_state **state_list)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_ENTRY();
+
+ state =
+ acpi_ut_create_pkg_state(internal_object, external_object, index);
+ if (!state) {
+ return (AE_NO_MEMORY);
+ }
+
+ acpi_ut_push_generic_state(state_list, state);
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_push_generic_state
+ *
+ * PARAMETERS: list_head - Head of the state stack
+ * State - State object to push
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Push a state object onto a state stack
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_push_generic_state(union acpi_generic_state **list_head,
+ union acpi_generic_state *state)
+{
+ ACPI_FUNCTION_TRACE(ut_push_generic_state);
+
+ /* Push the state object onto the front of the list (stack) */
+
+ state->common.next = *list_head;
+ *list_head = state;
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_pop_generic_state
+ *
+ * PARAMETERS: list_head - Head of the state stack
+ *
+ * RETURN: The popped state object
+ *
+ * DESCRIPTION: Pop a state object from a state stack
+ *
+ ******************************************************************************/
+
+union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state
+ **list_head)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_TRACE(ut_pop_generic_state);
+
+ /* Remove the state object at the head of the list (stack) */
+
+ state = *list_head;
+ if (state) {
+
+ /* Update the list head */
+
+ *list_head = state->common.next;
+ }
+
+ return_PTR(state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_generic_state
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: The new state object. NULL on failure.
+ *
+ * DESCRIPTION: Create a generic state object. Attempt to obtain one from
+ * the global state cache; If none available, create a new one.
+ *
+ ******************************************************************************/
+
+union acpi_generic_state *acpi_ut_create_generic_state(void)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_ENTRY();
+
+ state = acpi_os_acquire_object(acpi_gbl_state_cache);
+ if (state) {
+
+ /* Initialize */
+ memset(state, 0, sizeof(union acpi_generic_state));
+ state->common.descriptor_type = ACPI_DESC_TYPE_STATE;
+ }
+
+ return (state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_thread_state
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: New Thread State. NULL on failure
+ *
+ * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used
+ * to track per-thread info during method execution
+ *
+ ******************************************************************************/
+
+struct acpi_thread_state *acpi_ut_create_thread_state(void)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_TRACE(ut_create_thread_state);
+
+ /* Create the generic state object */
+
+ state = acpi_ut_create_generic_state();
+ if (!state) {
+ return_PTR(NULL);
+ }
+
+ /* Init fields specific to the update struct */
+
+ state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD;
+ state->thread.thread_id = acpi_os_get_thread_id();
+
+ /* Check for invalid thread ID - zero is very bad, it will break things */
+
+ if (!state->thread.thread_id) {
+ ACPI_ERROR((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId"));
+ state->thread.thread_id = (acpi_thread_id) 1;
+ }
+
+ return_PTR((struct acpi_thread_state *)state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_update_state
+ *
+ * PARAMETERS: Object - Initial Object to be installed in the state
+ * Action - Update action to be performed
+ *
+ * RETURN: New state object, null on failure
+ *
+ * DESCRIPTION: Create an "Update State" - a flavor of the generic state used
+ * to update reference counts and delete complex objects such
+ * as packages.
+ *
+ ******************************************************************************/
+
+union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
+ *object, u16 action)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object);
+
+ /* Create the generic state object */
+
+ state = acpi_ut_create_generic_state();
+ if (!state) {
+ return_PTR(NULL);
+ }
+
+ /* Init fields specific to the update struct */
+
+ state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE;
+ state->update.object = object;
+ state->update.value = action;
+
+ return_PTR(state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_pkg_state
+ *
+ * PARAMETERS: Object - Initial Object to be installed in the state
+ * Action - Update action to be performed
+ *
+ * RETURN: New state object, null on failure
+ *
+ * DESCRIPTION: Create a "Package State"
+ *
+ ******************************************************************************/
+
+union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
+ void *external_object,
+ u16 index)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object);
+
+ /* Create the generic state object */
+
+ state = acpi_ut_create_generic_state();
+ if (!state) {
+ return_PTR(NULL);
+ }
+
+ /* Init fields specific to the update struct */
+
+ state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE;
+ state->pkg.source_object = (union acpi_operand_object *)internal_object;
+ state->pkg.dest_object = external_object;
+ state->pkg.index = index;
+ state->pkg.num_packages = 1;
+
+ return_PTR(state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_create_control_state
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: New state object, null on failure
+ *
+ * DESCRIPTION: Create a "Control State" - a flavor of the generic state used
+ * to support nested IF/WHILE constructs in the AML.
+ *
+ ******************************************************************************/
+
+union acpi_generic_state *acpi_ut_create_control_state(void)
+{
+ union acpi_generic_state *state;
+
+ ACPI_FUNCTION_TRACE(ut_create_control_state);
+
+ /* Create the generic state object */
+
+ state = acpi_ut_create_generic_state();
+ if (!state) {
+ return_PTR(NULL);
+ }
+
+ /* Init fields specific to the control struct */
+
+ state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL;
+ state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
+
+ return_PTR(state);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_delete_generic_state
+ *
+ * PARAMETERS: State - The state object to be deleted
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Release a state object to the state cache. NULL state objects
+ * are ignored.
+ *
+ ******************************************************************************/
+
+void acpi_ut_delete_generic_state(union acpi_generic_state *state)
+{
+ ACPI_FUNCTION_TRACE(ut_delete_generic_state);
+
+ /* Ignore null state */
+
+ if (state) {
+ (void)acpi_os_release_object(acpi_gbl_state_cache, state);
+ }
+ return_VOID;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * Module Name: utxface - External interfaces for "global" ACPI functions
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/accommon.h>
+#include <acpi/acevents.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdebug.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utxface")
+
+#ifndef ACPI_ASL_COMPILER
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_initialize_subsystem
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Initializes all global variables. This is the first function
+ * called, so any early initialization belongs here.
+ *
+ ******************************************************************************/
+acpi_status __init acpi_initialize_subsystem(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_initialize_subsystem);
+
+ acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE;
+ ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace());
+
+ /* Initialize the OS-Dependent layer */
+
+ status = acpi_os_initialize();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization"));
+ return_ACPI_STATUS(status);
+ }
+
+ /* Initialize all globals used by the subsystem */
+
+ status = acpi_ut_init_globals();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During initialization of globals"));
+ return_ACPI_STATUS(status);
+ }
+
+ /* Create the default mutex objects */
+
+ status = acpi_ut_mutex_initialize();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During Global Mutex creation"));
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Initialize the namespace manager and
+ * the root of the namespace tree
+ */
+ status = acpi_ns_root_initialize();
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "During Namespace initialization"));
+ return_ACPI_STATUS(status);
+ }
+
+ /* If configured, initialize the AML debugger */
+
+ ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_enable_subsystem
+ *
+ * PARAMETERS: Flags - Init/enable Options
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Completes the subsystem initialization including hardware.
+ * Puts system into ACPI mode if it isn't already.
+ *
+ ******************************************************************************/
+acpi_status acpi_enable_subsystem(u32 flags)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
+
+ /* Enable ACPI mode */
+
+ if (!(flags & ACPI_NO_ACPI_ENABLE)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Going into ACPI mode\n"));
+
+ acpi_gbl_original_mode = acpi_hw_get_mode();
+
+ status = acpi_enable();
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO, "AcpiEnable failed"));
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Obtain a permanent mapping for the FACS. This is required for the
+ * Global Lock and the Firmware Waking Vector
+ */
+ status = acpi_tb_initialize_facs();
+ if (ACPI_FAILURE(status)) {
+ ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Install the default op_region handlers. These are installed unless
+ * other handlers have already been installed via the
+ * install_address_space_handler interface.
+ */
+ if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Installing default address space handlers\n"));
+
+ status = acpi_ev_install_region_handlers();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Initialize ACPI Event handling (Fixed and General Purpose)
+ *
+ * Note1: We must have the hardware and events initialized before we can
+ * execute any control methods safely. Any control method can require
+ * ACPI hardware support, so the hardware must be fully initialized before
+ * any method execution!
+ *
+ * Note2: Fixed events are initialized and enabled here. GPEs are
+ * initialized, but cannot be enabled until after the hardware is
+ * completely initialized (SCI and global_lock activated)
+ */
+ if (!(flags & ACPI_NO_EVENT_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Initializing ACPI events\n"));
+
+ status = acpi_ev_initialize_events();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Install the SCI handler and Global Lock handler. This completes the
+ * hardware initialization.
+ */
+ if (!(flags & ACPI_NO_HANDLER_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Installing SCI/GL handlers\n"));
+
+ status = acpi_ev_install_xrupt_handlers();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enable_subsystem)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_initialize_objects
+ *
+ * PARAMETERS: Flags - Init/enable Options
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Completes namespace initialization by initializing device
+ * objects and executing AML code for Regions, buffers, etc.
+ *
+ ******************************************************************************/
+acpi_status acpi_initialize_objects(u32 flags)
+{
+ acpi_status status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(acpi_initialize_objects);
+
+ /*
+ * Run all _REG methods
+ *
+ * Note: Any objects accessed by the _REG methods will be automatically
+ * initialized, even if they contain executable AML (see the call to
+ * acpi_ns_initialize_objects below).
+ */
+ if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Executing _REG OpRegion methods\n"));
+
+ status = acpi_ev_initialize_op_regions();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Initialize the objects that remain uninitialized. This runs the
+ * executable AML that may be part of the declaration of these objects:
+ * operation_regions, buffer_fields, Buffers, and Packages.
+ */
+ if (!(flags & ACPI_NO_OBJECT_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Completing Initialization of ACPI Objects\n"));
+
+ status = acpi_ns_initialize_objects();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Initialize all device objects in the namespace. This runs the device
+ * _STA and _INI methods.
+ */
+ if (!(flags & ACPI_NO_DEVICE_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Initializing ACPI Devices\n"));
+
+ status = acpi_ns_initialize_devices();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
+ * Complete the GPE initialization for the GPE blocks defined in the FADT
+ * (GPE block 0 and 1).
+ *
+ * Note1: This is where the _PRW methods are executed for the GPEs. These
+ * methods can only be executed after the SCI and Global Lock handlers are
+ * installed and initialized.
+ *
+ * Note2: Currently, there seems to be no need to run the _REG methods
+ * before execution of the _PRW methods and enabling of the GPEs.
+ */
+ if (!(flags & ACPI_NO_EVENT_INIT)) {
+ status = acpi_ev_install_fadt_gpes();
+ if (ACPI_FAILURE(status))
+ return (status);
+ }
+
+ /*
+ * Empty the caches (delete the cached objects) on the assumption that
+ * the table load filled them up more than they will be at runtime --
+ * thus wasting non-paged memory.
+ */
+ status = acpi_purge_cached_objects();
+
+ acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_initialize_objects)
+
+#endif
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_terminate
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources.
+ *
+ ******************************************************************************/
+acpi_status acpi_terminate(void)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_terminate);
+
+ /* Terminate the AML Debugger if present */
+
+ ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
+
+ /* Shutdown and free all resources */
+
+ acpi_ut_subsystem_shutdown();
+
+ /* Free the mutex objects */
+
+ acpi_ut_mutex_terminate();
+
+#ifdef ACPI_DEBUGGER
+
+ /* Shut down the debugger */
+
+ acpi_db_terminate();
+#endif
+
+ /* Now we can shutdown the OS-dependent layer */
+
+ status = acpi_os_terminate();
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_terminate)
+#ifndef ACPI_ASL_COMPILER
+#ifdef ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_subsystem_status
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status of the ACPI subsystem
+ *
+ * DESCRIPTION: Other drivers that use the ACPI subsystem should call this
+ * before making any other calls, to ensure the subsystem
+ * initialized successfully.
+ *
+ ******************************************************************************/
+acpi_status acpi_subsystem_status(void)
+{
+
+ if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) {
+ return (AE_OK);
+ } else {
+ return (AE_ERROR);
+ }
+}
+
+ACPI_EXPORT_SYMBOL(acpi_subsystem_status)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_get_system_info
+ *
+ * PARAMETERS: out_buffer - A buffer to receive the resources for the
+ * device
+ *
+ * RETURN: Status - the status of the call
+ *
+ * DESCRIPTION: This function is called to get information about the current
+ * state of the ACPI subsystem. It will return system information
+ * in the out_buffer.
+ *
+ * If the function fails an appropriate status will be returned
+ * and the value of out_buffer is undefined.
+ *
+ ******************************************************************************/
+acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
+{
+ struct acpi_system_info *info_ptr;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_get_system_info);
+
+ /* Parameter validation */
+
+ status = acpi_ut_validate_buffer(out_buffer);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* Validate/Allocate/Clear caller buffer */
+
+ status =
+ acpi_ut_initialize_buffer(out_buffer,
+ sizeof(struct acpi_system_info));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /*
+ * Populate the return buffer
+ */
+ info_ptr = (struct acpi_system_info *)out_buffer->pointer;
+
+ info_ptr->acpi_ca_version = ACPI_CA_VERSION;
+
+ /* System flags (ACPI capabilities) */
+
+ info_ptr->flags = ACPI_SYS_MODE_ACPI;
+
+ /* Timer resolution - 24 or 32 bits */
+
+ if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) {
+ info_ptr->timer_resolution = 24;
+ } else {
+ info_ptr->timer_resolution = 32;
+ }
+
+ /* Clear the reserved fields */
+
+ info_ptr->reserved1 = 0;
+ info_ptr->reserved2 = 0;
+
+ /* Current debug levels */
+
+ info_ptr->debug_layer = acpi_dbg_layer;
+ info_ptr->debug_level = acpi_dbg_level;
+
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_system_info)
+
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_install_initialization_handler
+ *
+ * PARAMETERS: Handler - Callback procedure
+ * Function - Not (currently) used, see below
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Install an initialization handler
+ *
+ * TBD: When a second function is added, must save the Function also.
+ *
+ ****************************************************************************/
+acpi_status
+acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
+{
+
+ if (!handler) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ if (acpi_gbl_init_handler) {
+ return (AE_ALREADY_EXISTS);
+ }
+
+ acpi_gbl_init_handler = handler;
+ return AE_OK;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
+#endif /* ACPI_FUTURE_USAGE */
+/*****************************************************************************
+ *
+ * FUNCTION: acpi_purge_cached_objects
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Empty all caches (delete the cached objects)
+ *
+ ****************************************************************************/
+acpi_status acpi_purge_cached_objects(void)
+{
+ ACPI_FUNCTION_TRACE(acpi_purge_cached_objects);
+
+ (void)acpi_os_purge_cache(acpi_gbl_state_cache);
+ (void)acpi_os_purge_cache(acpi_gbl_operand_cache);
+ (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache);
+ (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache);
+ return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
+#endif
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := dsfield.o dsmthdat.o dsopcode.o dswexec.o dswscope.o \
- dsmethod.o dsobject.o dsutils.o dswload.o dswstate.o \
- dsinit.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dsfield - Dispatcher field routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsfield")
-
-/* Local prototypes */
-static acpi_status
-acpi_ds_get_field_names(struct acpi_create_field_info *info,
- struct acpi_walk_state *walk_state,
- union acpi_parse_object *arg);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_buffer_field
- *
- * PARAMETERS: Op - Current parse op (create_xXField)
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute the create_field operators:
- * create_bit_field_op,
- * create_byte_field_op,
- * create_word_field_op,
- * create_dword_field_op,
- * create_qword_field_op,
- * create_field_op (all of which define a field in a buffer)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_buffer_field(union acpi_parse_object *op,
- struct acpi_walk_state *walk_state)
-{
- union acpi_parse_object *arg;
- struct acpi_namespace_node *node;
- acpi_status status;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *second_desc = NULL;
- u32 flags;
-
- ACPI_FUNCTION_TRACE(ds_create_buffer_field);
-
- /*
- * Get the name_string argument (name of the new buffer_field)
- */
- if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
-
- /* For create_field, name is the 4th argument */
-
- arg = acpi_ps_get_arg(op, 3);
- } else {
- /* For all other create_xXXField operators, name is the 3rd argument */
-
- arg = acpi_ps_get_arg(op, 2);
- }
-
- if (!arg) {
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- if (walk_state->deferred_node) {
- node = walk_state->deferred_node;
- status = AE_OK;
- } else {
- /* Execute flag should always be set when this function is entered */
-
- if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /* Creating new namespace node, should not already exist */
-
- flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
- ACPI_NS_ERROR_IF_FOUND;
-
- /* Mark node temporary if we are executing a method */
-
- if (walk_state->method_node) {
- flags |= ACPI_NS_TEMPORARY;
- }
-
- /* Enter the name_string into the namespace */
-
- status =
- acpi_ns_lookup(walk_state->scope_info,
- arg->common.value.string, ACPI_TYPE_ANY,
- ACPI_IMODE_LOAD_PASS1, flags, walk_state,
- &node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * We could put the returned object (Node) on the object stack for later,
- * but for now, we will put it in the "op" object that the parser uses,
- * so we can get it again at the end of this scope.
- */
- op->common.node = node;
-
- /*
- * If there is no object attached to the node, this node was just created
- * and we need to create the field object. Otherwise, this was a lookup
- * of an existing node and we don't want to create the field object again.
- */
- obj_desc = acpi_ns_get_attached_object(node);
- if (obj_desc) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * The Field definition is not fully parsed at this time.
- * (We must save the address of the AML for the buffer and index operands)
- */
-
- /* Create the buffer field object */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER_FIELD);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Remember location in AML stream of the field unit opcode and operands --
- * since the buffer and index operands must be evaluated.
- */
- second_desc = obj_desc->common.next_object;
- second_desc->extra.aml_start = op->named.data;
- second_desc->extra.aml_length = op->named.length;
- obj_desc->buffer_field.node = node;
-
- /* Attach constructed field descriptors to parent node */
-
- status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_BUFFER_FIELD);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- cleanup:
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_get_field_names
- *
- * PARAMETERS: Info - create_field info structure
- * ` walk_state - Current method state
- * Arg - First parser arg for the field name list
- *
- * RETURN: Status
- *
- * DESCRIPTION: Process all named fields in a field declaration. Names are
- * entered into the namespace.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_get_field_names(struct acpi_create_field_info *info,
- struct acpi_walk_state *walk_state,
- union acpi_parse_object *arg)
-{
- acpi_status status;
- acpi_integer position;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info);
-
- /* First field starts at bit zero */
-
- info->field_bit_position = 0;
-
- /* Process all elements in the field list (of parse nodes) */
-
- while (arg) {
- /*
- * Three types of field elements are handled:
- * 1) Offset - specifies a bit offset
- * 2) access_as - changes the access mode
- * 3) Name - Enters a new named field into the namespace
- */
- switch (arg->common.aml_opcode) {
- case AML_INT_RESERVEDFIELD_OP:
-
- position = (acpi_integer) info->field_bit_position
- + (acpi_integer) arg->common.value.size;
-
- if (position > ACPI_UINT32_MAX) {
- ACPI_ERROR((AE_INFO,
- "Bit offset within field too large (> 0xFFFFFFFF)"));
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- info->field_bit_position = (u32) position;
- break;
-
- case AML_INT_ACCESSFIELD_OP:
-
- /*
- * Get a new access_type and access_attribute -- to be used for all
- * field units that follow, until field end or another access_as
- * keyword.
- *
- * In field_flags, preserve the flag bits other than the
- * ACCESS_TYPE bits
- */
- info->field_flags = (u8)
- ((info->
- field_flags & ~(AML_FIELD_ACCESS_TYPE_MASK)) |
- ((u8) ((u32) arg->common.value.integer >> 8)));
-
- info->attribute = (u8) (arg->common.value.integer);
- break;
-
- case AML_INT_NAMEDFIELD_OP:
-
- /* Lookup the name, it should already exist */
-
- status = acpi_ns_lookup(walk_state->scope_info,
- (char *)&arg->named.name,
- info->field_type,
- ACPI_IMODE_EXECUTE,
- ACPI_NS_DONT_OPEN_SCOPE,
- walk_state, &info->field_node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE((char *)&arg->named.name,
- status);
- return_ACPI_STATUS(status);
- } else {
- arg->common.node = info->field_node;
- info->field_bit_length = arg->common.value.size;
-
- /*
- * If there is no object attached to the node, this node was
- * just created and we need to create the field object.
- * Otherwise, this was a lookup of an existing node and we
- * don't want to create the field object again.
- */
- if (!acpi_ns_get_attached_object
- (info->field_node)) {
- status = acpi_ex_prep_field_value(info);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- }
-
- /* Keep track of bit position for the next field */
-
- position = (acpi_integer) info->field_bit_position
- + (acpi_integer) arg->common.value.size;
-
- if (position > ACPI_UINT32_MAX) {
- ACPI_ERROR((AE_INFO,
- "Field [%4.4s] bit offset too large (> 0xFFFFFFFF)",
- ACPI_CAST_PTR(char,
- &info->field_node->
- name)));
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- info->field_bit_position += info->field_bit_length;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Invalid opcode in field list: %X",
- arg->common.aml_opcode));
- return_ACPI_STATUS(AE_AML_BAD_OPCODE);
- }
-
- arg = arg->common.next;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_field
- *
- * PARAMETERS: Op - Op containing the Field definition and args
- * region_node - Object for the containing Operation Region
- * ` walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new field in the specified operation region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_field(union acpi_parse_object *op,
- struct acpi_namespace_node *region_node,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_parse_object *arg;
- struct acpi_create_field_info info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_field, op);
-
- /* First arg is the name of the parent op_region (must already exist) */
-
- arg = op->common.value.arg;
- if (!region_node) {
- status =
- acpi_ns_lookup(walk_state->scope_info,
- arg->common.value.name, ACPI_TYPE_REGION,
- ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
- walk_state, ®ion_node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(arg->common.value.name, status);
- return_ACPI_STATUS(status);
- }
- }
-
- /* Second arg is the field flags */
-
- arg = arg->common.next;
- info.field_flags = (u8) arg->common.value.integer;
- info.attribute = 0;
-
- /* Each remaining arg is a Named Field */
-
- info.field_type = ACPI_TYPE_LOCAL_REGION_FIELD;
- info.region_node = region_node;
-
- status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_init_field_objects
- *
- * PARAMETERS: Op - Op containing the Field definition and args
- * ` walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: For each "Field Unit" name in the argument list that is
- * part of the field declaration, enter the name into the
- * namespace.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_init_field_objects(union acpi_parse_object *op,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_parse_object *arg = NULL;
- struct acpi_namespace_node *node;
- u8 type = 0;
- u32 flags;
-
- ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op);
-
- /* Execute flag should always be set when this function is entered */
-
- if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) {
- if (walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP) {
-
- /* bank_field Op is deferred, just return OK */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /*
- * Get the field_list argument for this opcode. This is the start of the
- * list of field elements.
- */
- switch (walk_state->opcode) {
- case AML_FIELD_OP:
- arg = acpi_ps_get_arg(op, 2);
- type = ACPI_TYPE_LOCAL_REGION_FIELD;
- break;
-
- case AML_BANK_FIELD_OP:
- arg = acpi_ps_get_arg(op, 4);
- type = ACPI_TYPE_LOCAL_BANK_FIELD;
- break;
-
- case AML_INDEX_FIELD_OP:
- arg = acpi_ps_get_arg(op, 3);
- type = ACPI_TYPE_LOCAL_INDEX_FIELD;
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Creating new namespace node(s), should not already exist */
-
- flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE |
- ACPI_NS_ERROR_IF_FOUND;
-
- /* Mark node(s) temporary if we are executing a method */
-
- if (walk_state->method_node) {
- flags |= ACPI_NS_TEMPORARY;
- }
-
- /*
- * Walk the list of entries in the field_list
- * Note: field_list can be of zero length. In this case, Arg will be NULL.
- */
- while (arg) {
- /*
- * Ignore OFFSET and ACCESSAS terms here; we are only interested in the
- * field names in order to enter them into the namespace.
- */
- if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
- status = acpi_ns_lookup(walk_state->scope_info,
- (char *)&arg->named.name, type,
- ACPI_IMODE_LOAD_PASS1, flags,
- walk_state, &node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE((char *)&arg->named.name,
- status);
- if (status != AE_ALREADY_EXISTS) {
- return_ACPI_STATUS(status);
- }
-
- /* Name already exists, just ignore this error */
-
- status = AE_OK;
- }
-
- arg->common.node = node;
- }
-
- /* Get the next field element in the list */
-
- arg = arg->common.next;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_bank_field
- *
- * PARAMETERS: Op - Op containing the Field definition and args
- * region_node - Object for the containing Operation Region
- * walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new bank field in the specified operation region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_bank_field(union acpi_parse_object *op,
- struct acpi_namespace_node *region_node,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_parse_object *arg;
- struct acpi_create_field_info info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op);
-
- /* First arg is the name of the parent op_region (must already exist) */
-
- arg = op->common.value.arg;
- if (!region_node) {
- status =
- acpi_ns_lookup(walk_state->scope_info,
- arg->common.value.name, ACPI_TYPE_REGION,
- ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
- walk_state, ®ion_node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(arg->common.value.name, status);
- return_ACPI_STATUS(status);
- }
- }
-
- /* Second arg is the Bank Register (Field) (must already exist) */
-
- arg = arg->common.next;
- status =
- acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
- ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT, walk_state,
- &info.register_node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
- return_ACPI_STATUS(status);
- }
-
- /*
- * Third arg is the bank_value
- * This arg is a term_arg, not a constant
- * It will be evaluated later, by acpi_ds_eval_bank_field_operands
- */
- arg = arg->common.next;
-
- /* Fourth arg is the field flags */
-
- arg = arg->common.next;
- info.field_flags = (u8) arg->common.value.integer;
-
- /* Each remaining arg is a Named Field */
-
- info.field_type = ACPI_TYPE_LOCAL_BANK_FIELD;
- info.region_node = region_node;
-
- /*
- * Use Info.data_register_node to store bank_field Op
- * It's safe because data_register_node will never be used when create bank field
- * We store aml_start and aml_length in the bank_field Op for late evaluation
- * Used in acpi_ex_prep_field_value(Info)
- *
- * TBD: Or, should we add a field in struct acpi_create_field_info, like "void *ParentOp"?
- */
- info.data_register_node = (struct acpi_namespace_node *)op;
-
- status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_index_field
- *
- * PARAMETERS: Op - Op containing the Field definition and args
- * region_node - Object for the containing Operation Region
- * ` walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new index field in the specified operation region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_index_field(union acpi_parse_object *op,
- struct acpi_namespace_node *region_node,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_parse_object *arg;
- struct acpi_create_field_info info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op);
-
- /* First arg is the name of the Index register (must already exist) */
-
- arg = op->common.value.arg;
- status =
- acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
- ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT, walk_state,
- &info.register_node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
- return_ACPI_STATUS(status);
- }
-
- /* Second arg is the data register (must already exist) */
-
- arg = arg->common.next;
- status =
- acpi_ns_lookup(walk_state->scope_info, arg->common.value.string,
- ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT, walk_state,
- &info.data_register_node);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
- return_ACPI_STATUS(status);
- }
-
- /* Next arg is the field flags */
-
- arg = arg->common.next;
- info.field_flags = (u8) arg->common.value.integer;
-
- /* Each remaining arg is a Named Field */
-
- info.field_type = ACPI_TYPE_LOCAL_INDEX_FIELD;
- info.region_node = region_node;
-
- status = acpi_ds_get_field_names(&info, walk_state, arg->common.next);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dsinit - Object initialization namespace walk
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsinit")
-
-/* Local prototypes */
-static acpi_status
-acpi_ds_init_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_init_one_object
- *
- * PARAMETERS: obj_handle - Node for the object
- * Level - Current nesting level
- * Context - Points to a init info struct
- * return_value - Not used
- *
- * RETURN: Status
- *
- * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
- * within the namespace.
- *
- * Currently, the only objects that require initialization are:
- * 1) Methods
- * 2) Operation Regions
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_init_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- struct acpi_init_walk_info *info =
- (struct acpi_init_walk_info *)context;
- struct acpi_namespace_node *node =
- (struct acpi_namespace_node *)obj_handle;
- acpi_object_type type;
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * We are only interested in NS nodes owned by the table that
- * was just loaded
- */
- if (node->owner_id != info->owner_id) {
- return (AE_OK);
- }
-
- info->object_count++;
-
- /* And even then, we are only interested in a few object types */
-
- type = acpi_ns_get_type(obj_handle);
-
- switch (type) {
- case ACPI_TYPE_REGION:
-
- status = acpi_ds_initialize_region(obj_handle);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "During Region initialization %p [%4.4s]",
- obj_handle,
- acpi_ut_get_node_name(obj_handle)));
- }
-
- info->op_region_count++;
- break;
-
- case ACPI_TYPE_METHOD:
-
- info->method_count++;
- break;
-
- case ACPI_TYPE_DEVICE:
-
- info->device_count++;
- break;
-
- default:
- break;
- }
-
- /*
- * We ignore errors from above, and always return OK, since
- * we don't want to abort the walk on a single error.
- */
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_initialize_objects
- *
- * PARAMETERS: table_desc - Descriptor for parent ACPI table
- * start_node - Root of subtree to be initialized.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any
- * necessary initialization on the objects found therein
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_initialize_objects(u32 table_index,
- struct acpi_namespace_node * start_node)
-{
- acpi_status status;
- struct acpi_init_walk_info info;
- struct acpi_table_header *table;
- acpi_owner_id owner_id;
-
- ACPI_FUNCTION_TRACE(ds_initialize_objects);
-
- status = acpi_tb_get_owner_id(table_index, &owner_id);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "**** Starting initialization of namespace objects ****\n"));
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:"));
-
- info.method_count = 0;
- info.op_region_count = 0;
- info.object_count = 0;
- info.device_count = 0;
- info.table_index = table_index;
- info.owner_id = owner_id;
-
- /* Walk entire namespace from the supplied root */
-
- status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
- acpi_ds_init_one_object, &info, NULL);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
- }
-
- status = acpi_get_table_by_index(table_index, &table);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n",
- table->signature, owner_id, info.object_count,
- info.device_count, info.method_count,
- info.op_region_count));
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "%hd Methods, %hd Regions\n", info.method_count,
- info.op_region_count));
-
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dsmethod - Parser/Interpreter interface - control method parsing
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#ifdef ACPI_DISASSEMBLER
-#include <acpi/acdisasm.h>
-#endif
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsmethod")
-
-/* Local prototypes */
-static acpi_status
-acpi_ds_create_method_mutex(union acpi_operand_object *method_desc);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_error
- *
- * PARAMETERS: Status - Execution status
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Called on method error. Invoke the global exception handler if
- * present, dump the method data if the disassembler is configured
- *
- * Note: Allows the exception handler to change the status code
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Ignore AE_OK and control exception codes */
-
- if (ACPI_SUCCESS(status) || (status & AE_CODE_CONTROL)) {
- return (status);
- }
-
- /* Invoke the global exception handler */
-
- if (acpi_gbl_exception_handler) {
-
- /* Exit the interpreter, allow handler to execute methods */
-
- acpi_ex_exit_interpreter();
-
- /*
- * Handler can map the exception code to anything it wants, including
- * AE_OK, in which case the executing method will not be aborted.
- */
- status = acpi_gbl_exception_handler(status,
- walk_state->method_node ?
- walk_state->method_node->
- name.integer : 0,
- walk_state->opcode,
- walk_state->aml_offset,
- NULL);
- acpi_ex_enter_interpreter();
- }
-
- acpi_ds_clear_implicit_return(walk_state);
-
-#ifdef ACPI_DISASSEMBLER
- if (ACPI_FAILURE(status)) {
-
- /* Display method locals/args if disassembler is present */
-
- acpi_dm_dump_method_info(status, walk_state, walk_state->op);
- }
-#endif
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_method_mutex
- *
- * PARAMETERS: obj_desc - The method object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a mutex object for a serialized control method
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_create_method_mutex(union acpi_operand_object *method_desc)
-{
- union acpi_operand_object *mutex_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ds_create_method_mutex);
-
- /* Create the new mutex object */
-
- mutex_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX);
- if (!mutex_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Create the actual OS Mutex */
-
- status = acpi_os_create_mutex(&mutex_desc->mutex.os_mutex);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- mutex_desc->mutex.sync_level = method_desc->method.sync_level;
- method_desc->method.mutex = mutex_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_begin_method_execution
- *
- * PARAMETERS: method_node - Node of the method
- * obj_desc - The method object
- * walk_state - current state, NULL if not yet executing
- * a method.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Prepare a method for execution. Parses the method if necessary,
- * increments the thread count, and waits at the method semaphore
- * for clearance to execute.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
- union acpi_operand_object *obj_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node);
-
- if (!method_node) {
- return_ACPI_STATUS(AE_NULL_ENTRY);
- }
-
- /* Prevent wraparound of thread count */
-
- if (obj_desc->method.thread_count == ACPI_UINT8_MAX) {
- ACPI_ERROR((AE_INFO,
- "Method reached maximum reentrancy limit (255)"));
- return_ACPI_STATUS(AE_AML_METHOD_LIMIT);
- }
-
- /*
- * If this method is serialized, we need to acquire the method mutex.
- */
- if (obj_desc->method.method_flags & AML_METHOD_SERIALIZED) {
- /*
- * Create a mutex for the method if it is defined to be Serialized
- * and a mutex has not already been created. We defer the mutex creation
- * until a method is actually executed, to minimize the object count
- */
- if (!obj_desc->method.mutex) {
- status = acpi_ds_create_method_mutex(obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * The current_sync_level (per-thread) must be less than or equal to
- * the sync level of the method. This mechanism provides some
- * deadlock prevention
- *
- * Top-level method invocation has no walk state at this point
- */
- if (walk_state &&
- (walk_state->thread->current_sync_level >
- obj_desc->method.mutex->mutex.sync_level)) {
- ACPI_ERROR((AE_INFO,
- "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%d)",
- acpi_ut_get_node_name(method_node),
- walk_state->thread->current_sync_level));
-
- return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
- }
-
- /*
- * Obtain the method mutex if necessary. Do not acquire mutex for a
- * recursive call.
- */
- if (!walk_state ||
- !obj_desc->method.mutex->mutex.thread_id ||
- (walk_state->thread->thread_id !=
- obj_desc->method.mutex->mutex.thread_id)) {
- /*
- * Acquire the method mutex. This releases the interpreter if we
- * block (and reacquires it before it returns)
- */
- status =
- acpi_ex_system_wait_mutex(obj_desc->method.mutex->
- mutex.os_mutex,
- ACPI_WAIT_FOREVER);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Update the mutex and walk info and save the original sync_level */
-
- if (walk_state) {
- obj_desc->method.mutex->mutex.
- original_sync_level =
- walk_state->thread->current_sync_level;
-
- obj_desc->method.mutex->mutex.thread_id =
- walk_state->thread->thread_id;
- walk_state->thread->current_sync_level =
- obj_desc->method.sync_level;
- } else {
- obj_desc->method.mutex->mutex.
- original_sync_level =
- obj_desc->method.mutex->mutex.sync_level;
- }
- }
-
- /* Always increase acquisition depth */
-
- obj_desc->method.mutex->mutex.acquisition_depth++;
- }
-
- /*
- * Allocate an Owner ID for this method, only if this is the first thread
- * to begin concurrent execution. We only need one owner_id, even if the
- * method is invoked recursively.
- */
- if (!obj_desc->method.owner_id) {
- status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
- }
-
- /*
- * Increment the method parse tree thread count since it has been
- * reentered one more time (even if it is the same thread)
- */
- obj_desc->method.thread_count++;
- return_ACPI_STATUS(status);
-
- cleanup:
- /* On error, must release the method mutex (if present) */
-
- if (obj_desc->method.mutex) {
- acpi_os_release_mutex(obj_desc->method.mutex->mutex.os_mutex);
- }
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_call_control_method
- *
- * PARAMETERS: Thread - Info for this thread
- * this_walk_state - Current walk state
- * Op - Current Op to be walked
- *
- * RETURN: Status
- *
- * DESCRIPTION: Transfer execution to a called control method
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_call_control_method(struct acpi_thread_state *thread,
- struct acpi_walk_state *this_walk_state,
- union acpi_parse_object *op)
-{
- acpi_status status;
- struct acpi_namespace_node *method_node;
- struct acpi_walk_state *next_walk_state = NULL;
- union acpi_operand_object *obj_desc;
- struct acpi_evaluate_info *info;
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state);
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Calling method %p, currentstate=%p\n",
- this_walk_state->prev_op, this_walk_state));
-
- /*
- * Get the namespace entry for the control method we are about to call
- */
- method_node = this_walk_state->method_call_node;
- if (!method_node) {
- return_ACPI_STATUS(AE_NULL_ENTRY);
- }
-
- obj_desc = acpi_ns_get_attached_object(method_node);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NULL_OBJECT);
- }
-
- /* Init for new method, possibly wait on method mutex */
-
- status = acpi_ds_begin_method_execution(method_node, obj_desc,
- this_walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Begin method parse/execution. Create a new walk state */
-
- next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id,
- NULL, obj_desc, thread);
- if (!next_walk_state) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * The resolved arguments were put on the previous walk state's operand
- * stack. Operands on the previous walk state stack always
- * start at index 0. Also, null terminate the list of arguments
- */
- this_walk_state->operands[this_walk_state->num_operands] = NULL;
-
- /*
- * Allocate and initialize the evaluation information block
- * TBD: this is somewhat inefficient, should change interface to
- * ds_init_aml_walk. For now, keeps this struct off the CPU stack
- */
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- info->parameters = &this_walk_state->operands[0];
-
- status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node,
- obj_desc->method.aml_start,
- obj_desc->method.aml_length, info,
- ACPI_IMODE_EXECUTE);
-
- ACPI_FREE(info);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * Delete the operands on the previous walkstate operand stack
- * (they were copied to new objects)
- */
- for (i = 0; i < obj_desc->method.param_count; i++) {
- acpi_ut_remove_reference(this_walk_state->operands[i]);
- this_walk_state->operands[i] = NULL;
- }
-
- /* Clear the operand stack */
-
- this_walk_state->num_operands = 0;
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "**** Begin nested execution of [%4.4s] **** WalkState=%p\n",
- method_node->name.ascii, next_walk_state));
-
- /* Invoke an internal method if necessary */
-
- if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
- status = obj_desc->method.implementation(next_walk_state);
- if (status == AE_OK) {
- status = AE_CTRL_TERMINATE;
- }
- }
-
- return_ACPI_STATUS(status);
-
- cleanup:
-
- /* On error, we must terminate the method properly */
-
- acpi_ds_terminate_control_method(obj_desc, next_walk_state);
- if (next_walk_state) {
- acpi_ds_delete_walk_state(next_walk_state);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_restart_control_method
- *
- * PARAMETERS: walk_state - State for preempted method (caller)
- * return_desc - Return value from the called method
- *
- * RETURN: Status
- *
- * DESCRIPTION: Restart a method that was preempted by another (nested) method
- * invocation. Handle the return value (if any) from the callee.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
- union acpi_operand_object *return_desc)
-{
- acpi_status status;
- int same_as_implicit_return;
-
- ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state);
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n",
- acpi_ut_get_node_name(walk_state->method_node),
- walk_state->method_call_op, return_desc));
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- " ReturnFromThisMethodUsed?=%X ResStack %p Walk %p\n",
- walk_state->return_used,
- walk_state->results, walk_state));
-
- /* Did the called method return a value? */
-
- if (return_desc) {
-
- /* Is the implicit return object the same as the return desc? */
-
- same_as_implicit_return =
- (walk_state->implicit_return_obj == return_desc);
-
- /* Are we actually going to use the return value? */
-
- if (walk_state->return_used) {
-
- /* Save the return value from the previous method */
-
- status = acpi_ds_result_push(return_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(return_desc);
- return_ACPI_STATUS(status);
- }
-
- /*
- * Save as THIS method's return value in case it is returned
- * immediately to yet another method
- */
- walk_state->return_desc = return_desc;
- }
-
- /*
- * The following code is the optional support for the so-called
- * "implicit return". Some AML code assumes that the last value of the
- * method is "implicitly" returned to the caller, in the absence of an
- * explicit return value.
- *
- * Just save the last result of the method as the return value.
- *
- * NOTE: this is optional because the ASL language does not actually
- * support this behavior.
- */
- else if (!acpi_ds_do_implicit_return
- (return_desc, walk_state, FALSE)
- || same_as_implicit_return) {
- /*
- * Delete the return value if it will not be used by the
- * calling method or remove one reference if the explicit return
- * is the same as the implicit return value.
- */
- acpi_ut_remove_reference(return_desc);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_terminate_control_method
- *
- * PARAMETERS: method_desc - Method object
- * walk_state - State associated with the method
- *
- * RETURN: None
- *
- * DESCRIPTION: Terminate a control method. Delete everything that the method
- * created, delete all locals and arguments, and delete the parse
- * tree if requested.
- *
- * MUTEX: Interpreter is locked
- *
- ******************************************************************************/
-
-void
-acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
- struct acpi_walk_state *walk_state)
-{
-
- ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state);
-
- /* method_desc is required, walk_state is optional */
-
- if (!method_desc) {
- return_VOID;
- }
-
- if (walk_state) {
-
- /* Delete all arguments and locals */
-
- acpi_ds_method_data_delete_all(walk_state);
-
- /*
- * If method is serialized, release the mutex and restore the
- * current sync level for this thread
- */
- if (method_desc->method.mutex) {
-
- /* Acquisition Depth handles recursive calls */
-
- method_desc->method.mutex->mutex.acquisition_depth--;
- if (!method_desc->method.mutex->mutex.acquisition_depth) {
- walk_state->thread->current_sync_level =
- method_desc->method.mutex->mutex.
- original_sync_level;
-
- acpi_os_release_mutex(method_desc->method.
- mutex->mutex.os_mutex);
- method_desc->method.mutex->mutex.thread_id = NULL;
- }
- }
-
- /*
- * Delete any namespace objects created anywhere within
- * the namespace by the execution of this method
- */
- acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id);
- }
-
- /* Decrement the thread count on the method */
-
- if (method_desc->method.thread_count) {
- method_desc->method.thread_count--;
- } else {
- ACPI_ERROR((AE_INFO, "Invalid zero thread count in method"));
- }
-
- /* Are there any other threads currently executing this method? */
-
- if (method_desc->method.thread_count) {
- /*
- * Additional threads. Do not release the owner_id in this case,
- * we immediately reuse it for the next thread executing this method
- */
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "*** Completed execution of one thread, %d threads remaining\n",
- method_desc->method.thread_count));
- } else {
- /* This is the only executing thread for this method */
-
- /*
- * Support to dynamically change a method from not_serialized to
- * Serialized if it appears that the method is incorrectly written and
- * does not support multiple thread execution. The best example of this
- * is if such a method creates namespace objects and blocks. A second
- * thread will fail with an AE_ALREADY_EXISTS exception
- *
- * This code is here because we must wait until the last thread exits
- * before creating the synchronization semaphore.
- */
- if ((method_desc->method.method_flags & AML_METHOD_SERIALIZED)
- && (!method_desc->method.mutex)) {
- (void)acpi_ds_create_method_mutex(method_desc);
- }
-
- /* No more threads, we can free the owner_id */
-
- acpi_ut_release_owner_id(&method_desc->method.owner_id);
- }
-
- return_VOID;
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: dsmthdat - control method arguments and local variables
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsmthdat")
-
-/* Local prototypes */
-static void
-acpi_ds_method_data_delete_value(u8 type,
- u32 index, struct acpi_walk_state *walk_state);
-
-static acpi_status
-acpi_ds_method_data_set_value(u8 type,
- u32 index,
- union acpi_operand_object *object,
- struct acpi_walk_state *walk_state);
-
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-acpi_object_type
-acpi_ds_method_data_get_type(u16 opcode,
- u32 index, struct acpi_walk_state *walk_state);
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_init
- *
- * PARAMETERS: walk_state - Current walk state object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize the data structures that hold the method's arguments
- * and locals. The data struct is an array of namespace nodes for
- * each - this allows ref_of and de_ref_of to work properly for these
- * special data types.
- *
- * NOTES: walk_state fields are initialized to zero by the
- * ACPI_ALLOCATE_ZEROED().
- *
- * A pseudo-Namespace Node is assigned to each argument and local
- * so that ref_of() can return a pointer to the Node.
- *
- ******************************************************************************/
-
-void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE(ds_method_data_init);
-
- /* Init the method arguments */
-
- for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
- ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name,
- NAMEOF_ARG_NTE);
- walk_state->arguments[i].name.integer |= (i << 24);
- walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED;
- walk_state->arguments[i].type = ACPI_TYPE_ANY;
- walk_state->arguments[i].flags =
- ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG;
- }
-
- /* Init the method locals */
-
- for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
- ACPI_MOVE_32_TO_32(&walk_state->local_variables[i].name,
- NAMEOF_LOCAL_NTE);
-
- walk_state->local_variables[i].name.integer |= (i << 24);
- walk_state->local_variables[i].descriptor_type =
- ACPI_DESC_TYPE_NAMED;
- walk_state->local_variables[i].type = ACPI_TYPE_ANY;
- walk_state->local_variables[i].flags =
- ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL;
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_delete_all
- *
- * PARAMETERS: walk_state - Current walk state object
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete method locals and arguments. Arguments are only
- * deleted if this method was called from another method.
- *
- ******************************************************************************/
-
-void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state)
-{
- u32 index;
-
- ACPI_FUNCTION_TRACE(ds_method_data_delete_all);
-
- /* Detach the locals */
-
- for (index = 0; index < ACPI_METHOD_NUM_LOCALS; index++) {
- if (walk_state->local_variables[index].object) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Local%d=%p\n",
- index,
- walk_state->local_variables[index].
- object));
-
- /* Detach object (if present) and remove a reference */
-
- acpi_ns_detach_object(&walk_state->
- local_variables[index]);
- }
- }
-
- /* Detach the arguments */
-
- for (index = 0; index < ACPI_METHOD_NUM_ARGS; index++) {
- if (walk_state->arguments[index].object) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Arg%d=%p\n",
- index,
- walk_state->arguments[index].object));
-
- /* Detach object (if present) and remove a reference */
-
- acpi_ns_detach_object(&walk_state->arguments[index]);
- }
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_init_args
- *
- * PARAMETERS: *Params - Pointer to a parameter list for the method
- * max_param_count - The arg count for this method
- * walk_state - Current walk state object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize arguments for a method. The parameter list is a list
- * of ACPI operand objects, either null terminated or whose length
- * is defined by max_param_count.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_method_data_init_args(union acpi_operand_object **params,
- u32 max_param_count,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- u32 index = 0;
-
- ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params);
-
- if (!params) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "No param list passed to method\n"));
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Copy passed parameters into the new method stack frame */
-
- while ((index < ACPI_METHOD_NUM_ARGS) &&
- (index < max_param_count) && params[index]) {
- /*
- * A valid parameter.
- * Store the argument in the method/walk descriptor.
- * Do not copy the arg in order to implement call by reference
- */
- status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index,
- params[index],
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- index++;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%d args passed to method\n", index));
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_get_node
- *
- * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
- * ACPI_REFCLASS_ARG
- * Index - Which Local or Arg whose type to get
- * walk_state - Current walk state object
- * Node - Where the node is returned.
- *
- * RETURN: Status and node
- *
- * DESCRIPTION: Get the Node associated with a local or arg.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_method_data_get_node(u8 type,
- u32 index,
- struct acpi_walk_state *walk_state,
- struct acpi_namespace_node **node)
-{
- ACPI_FUNCTION_TRACE(ds_method_data_get_node);
-
- /*
- * Method Locals and Arguments are supported
- */
- switch (type) {
- case ACPI_REFCLASS_LOCAL:
-
- if (index > ACPI_METHOD_MAX_LOCAL) {
- ACPI_ERROR((AE_INFO,
- "Local index %d is invalid (max %d)",
- index, ACPI_METHOD_MAX_LOCAL));
- return_ACPI_STATUS(AE_AML_INVALID_INDEX);
- }
-
- /* Return a pointer to the pseudo-node */
-
- *node = &walk_state->local_variables[index];
- break;
-
- case ACPI_REFCLASS_ARG:
-
- if (index > ACPI_METHOD_MAX_ARG) {
- ACPI_ERROR((AE_INFO,
- "Arg index %d is invalid (max %d)",
- index, ACPI_METHOD_MAX_ARG));
- return_ACPI_STATUS(AE_AML_INVALID_INDEX);
- }
-
- /* Return a pointer to the pseudo-node */
-
- *node = &walk_state->arguments[index];
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Type %d is invalid", type));
- return_ACPI_STATUS(AE_TYPE);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_set_value
- *
- * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
- * ACPI_REFCLASS_ARG
- * Index - Which Local or Arg to get
- * Object - Object to be inserted into the stack entry
- * walk_state - Current walk state object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index.
- * Note: There is no "implicit conversion" for locals.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_method_data_set_value(u8 type,
- u32 index,
- union acpi_operand_object *object,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(ds_method_data_set_value);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "NewObj %p Type %2.2X, Refs=%d [%s]\n", object,
- type, object->common.reference_count,
- acpi_ut_get_type_name(object->common.type)));
-
- /* Get the namespace node for the arg/local */
-
- status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Increment ref count so object can't be deleted while installed.
- * NOTE: We do not copy the object in order to preserve the call by
- * reference semantics of ACPI Control Method invocation.
- * (See ACPI Specification 2.0_c)
- */
- acpi_ut_add_reference(object);
-
- /* Install the object */
-
- node->object = object;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_get_value
- *
- * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
- * ACPI_REFCLASS_ARG
- * Index - Which local_var or argument to get
- * walk_state - Current walk state object
- * dest_desc - Where Arg or Local value is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Retrieve value of selected Arg or Local for this method
- * Used only in acpi_ex_resolve_to_value().
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_method_data_get_value(u8 type,
- u32 index,
- struct acpi_walk_state *walk_state,
- union acpi_operand_object **dest_desc)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- union acpi_operand_object *object;
-
- ACPI_FUNCTION_TRACE(ds_method_data_get_value);
-
- /* Validate the object descriptor */
-
- if (!dest_desc) {
- ACPI_ERROR((AE_INFO, "Null object descriptor pointer"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Get the namespace node for the arg/local */
-
- status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the object from the node */
-
- object = node->object;
-
- /* Examine the returned object, it must be valid. */
-
- if (!object) {
- /*
- * Index points to uninitialized object.
- * This means that either 1) The expected argument was
- * not passed to the method, or 2) A local variable
- * was referenced by the method (via the ASL)
- * before it was initialized. Either case is an error.
- */
-
- /* If slack enabled, init the local_x/arg_x to an Integer of value zero */
-
- if (acpi_gbl_enable_interpreter_slack) {
- object =
- acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!object) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- object->integer.value = 0;
- node->object = object;
- }
-
- /* Otherwise, return the error */
-
- else
- switch (type) {
- case ACPI_REFCLASS_ARG:
-
- ACPI_ERROR((AE_INFO,
- "Uninitialized Arg[%d] at node %p",
- index, node));
-
- return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG);
-
- case ACPI_REFCLASS_LOCAL:
-
- ACPI_ERROR((AE_INFO,
- "Uninitialized Local[%d] at node %p",
- index, node));
-
- return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL);
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Not a Arg/Local opcode: %X",
- type));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
- }
-
- /*
- * The Index points to an initialized and valid object.
- * Return an additional reference to the object
- */
- *dest_desc = object;
- acpi_ut_add_reference(object);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_delete_value
- *
- * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
- * ACPI_REFCLASS_ARG
- * Index - Which local_var or argument to delete
- * walk_state - Current walk state object
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete the entry at Opcode:Index. Inserts
- * a null into the stack slot after the object is deleted.
- *
- ******************************************************************************/
-
-static void
-acpi_ds_method_data_delete_value(u8 type,
- u32 index, struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- union acpi_operand_object *object;
-
- ACPI_FUNCTION_TRACE(ds_method_data_delete_value);
-
- /* Get the namespace node for the arg/local */
-
- status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
-
- /* Get the associated object */
-
- object = acpi_ns_get_attached_object(node);
-
- /*
- * Undefine the Arg or Local by setting its descriptor
- * pointer to NULL. Locals/Args can contain both
- * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs
- */
- node->object = NULL;
-
- if ((object) &&
- (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_OPERAND)) {
- /*
- * There is a valid object.
- * Decrement the reference count by one to balance the
- * increment when the object was stored.
- */
- acpi_ut_remove_reference(object);
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_store_object_to_local
- *
- * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
- * ACPI_REFCLASS_ARG
- * Index - Which Local or Arg to set
- * obj_desc - Value to be stored
- * walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Store a value in an Arg or Local. The obj_desc is installed
- * as the new value for the Arg or Local and the reference count
- * for obj_desc is incremented.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_store_object_to_local(u8 type,
- u32 index,
- union acpi_operand_object *obj_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- union acpi_operand_object *current_obj_desc;
- union acpi_operand_object *new_obj_desc;
-
- ACPI_FUNCTION_TRACE(ds_store_object_to_local);
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Type=%2.2X Index=%d Obj=%p\n",
- type, index, obj_desc));
-
- /* Parameter validation */
-
- if (!obj_desc) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Get the namespace node for the arg/local */
-
- status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- current_obj_desc = acpi_ns_get_attached_object(node);
- if (current_obj_desc == obj_desc) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p already installed!\n",
- obj_desc));
- return_ACPI_STATUS(status);
- }
-
- /*
- * If the reference count on the object is more than one, we must
- * take a copy of the object before we store. A reference count
- * of exactly 1 means that the object was just created during the
- * evaluation of an expression, and we can safely use it since it
- * is not used anywhere else.
- */
- new_obj_desc = obj_desc;
- if (obj_desc->common.reference_count > 1) {
- status =
- acpi_ut_copy_iobject_to_iobject(obj_desc, &new_obj_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * If there is an object already in this slot, we either
- * have to delete it, or if this is an argument and there
- * is an object reference stored there, we have to do
- * an indirect store!
- */
- if (current_obj_desc) {
- /*
- * Check for an indirect store if an argument
- * contains an object reference (stored as an Node).
- * We don't allow this automatic dereferencing for
- * locals, since a store to a local should overwrite
- * anything there, including an object reference.
- *
- * If both Arg0 and Local0 contain ref_of (Local4):
- *
- * Store (1, Arg0) - Causes indirect store to local4
- * Store (1, Local0) - Stores 1 in local0, overwriting
- * the reference to local4
- * Store (1, de_refof (Local0)) - Causes indirect store to local4
- *
- * Weird, but true.
- */
- if (type == ACPI_REFCLASS_ARG) {
- /*
- * If we have a valid reference object that came from ref_of(),
- * do the indirect store
- */
- if ((ACPI_GET_DESCRIPTOR_TYPE(current_obj_desc) ==
- ACPI_DESC_TYPE_OPERAND)
- && (current_obj_desc->common.type ==
- ACPI_TYPE_LOCAL_REFERENCE)
- && (current_obj_desc->reference.class ==
- ACPI_REFCLASS_REFOF)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Arg (%p) is an ObjRef(Node), storing in node %p\n",
- new_obj_desc,
- current_obj_desc));
-
- /*
- * Store this object to the Node (perform the indirect store)
- * NOTE: No implicit conversion is performed, as per the ACPI
- * specification rules on storing to Locals/Args.
- */
- status =
- acpi_ex_store_object_to_node(new_obj_desc,
- current_obj_desc->
- reference.
- object,
- walk_state,
- ACPI_NO_IMPLICIT_CONVERSION);
-
- /* Remove local reference if we copied the object above */
-
- if (new_obj_desc != obj_desc) {
- acpi_ut_remove_reference(new_obj_desc);
- }
- return_ACPI_STATUS(status);
- }
- }
-
- /* Delete the existing object before storing the new one */
-
- acpi_ds_method_data_delete_value(type, index, walk_state);
- }
-
- /*
- * Install the Obj descriptor (*new_obj_desc) into
- * the descriptor for the Arg or Local.
- * (increments the object reference count by one)
- */
- status =
- acpi_ds_method_data_set_value(type, index, new_obj_desc,
- walk_state);
-
- /* Remove local reference if we copied the object above */
-
- if (new_obj_desc != obj_desc) {
- acpi_ut_remove_reference(new_obj_desc);
- }
-
- return_ACPI_STATUS(status);
-}
-
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_method_data_get_type
- *
- * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
- * Index - Which Local or Arg whose type to get
- * walk_state - Current walk state object
- *
- * RETURN: Data type of current value of the selected Arg or Local
- *
- * DESCRIPTION: Get the type of the object stored in the Local or Arg
- *
- ******************************************************************************/
-
-acpi_object_type
-acpi_ds_method_data_get_type(u16 opcode,
- u32 index, struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- union acpi_operand_object *object;
-
- ACPI_FUNCTION_TRACE(ds_method_data_get_type);
-
- /* Get the namespace node for the arg/local */
-
- status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
- if (ACPI_FAILURE(status)) {
- return_VALUE((ACPI_TYPE_NOT_FOUND));
- }
-
- /* Get the object */
-
- object = acpi_ns_get_attached_object(node);
- if (!object) {
-
- /* Uninitialized local/arg, return TYPE_ANY */
-
- return_VALUE(ACPI_TYPE_ANY);
- }
-
- /* Get the object type */
-
- return_VALUE(ACPI_GET_OBJECT_TYPE(object));
-}
-#endif
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dsobject - Dispatcher object management routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsobject")
-
-/* Local prototypes */
-static acpi_status
-acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- union acpi_operand_object **obj_desc_ptr);
-
-#ifndef ACPI_NO_METHOD_EXECUTION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_build_internal_object
- *
- * PARAMETERS: walk_state - Current walk state
- * Op - Parser object to be translated
- * obj_desc_ptr - Where the ACPI internal object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
- * Simple objects are any objects other than a package object!
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- union acpi_operand_object **obj_desc_ptr)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ds_build_internal_object);
-
- *obj_desc_ptr = NULL;
- if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
- /*
- * This is a named object reference. If this name was
- * previously looked up in the namespace, it was stored in this op.
- * Otherwise, go ahead and look it up now
- */
- if (!op->common.node) {
- status = acpi_ns_lookup(walk_state->scope_info,
- op->common.value.string,
- ACPI_TYPE_ANY,
- ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT |
- ACPI_NS_DONT_OPEN_SCOPE, NULL,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_namespace_node,
- &(op->
- common.
- node)));
- if (ACPI_FAILURE(status)) {
-
- /* Check if we are resolving a named reference within a package */
-
- if ((status == AE_NOT_FOUND)
- && (acpi_gbl_enable_interpreter_slack)
- &&
- ((op->common.parent->common.aml_opcode ==
- AML_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_VAR_PACKAGE_OP))) {
- /*
- * We didn't find the target and we are populating elements
- * of a package - ignore if slack enabled. Some ASL code
- * contains dangling invalid references in packages and
- * expects that no exception will be issued. Leave the
- * element as a null element. It cannot be used, but it
- * can be overwritten by subsequent ASL code - this is
- * typically the case.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Ignoring unresolved reference in package [%4.4s]\n",
- walk_state->
- scope_info->scope.
- node->name.ascii));
-
- return_ACPI_STATUS(AE_OK);
- } else {
- ACPI_ERROR_NAMESPACE(op->common.value.
- string, status);
- }
-
- return_ACPI_STATUS(status);
- }
- }
-
- /* Special object resolution for elements of a package */
-
- if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
- (op->common.parent->common.aml_opcode ==
- AML_VAR_PACKAGE_OP)) {
- /*
- * Attempt to resolve the node to a value before we insert it into
- * the package. If this is a reference to a common data type,
- * resolve it immediately. According to the ACPI spec, package
- * elements can only be "data objects" or method references.
- * Attempt to resolve to an Integer, Buffer, String or Package.
- * If cannot, return the named reference (for things like Devices,
- * Methods, etc.) Buffer Fields and Fields will resolve to simple
- * objects (int/buf/str/pkg).
- *
- * NOTE: References to things like Devices, Methods, Mutexes, etc.
- * will remain as named references. This behavior is not described
- * in the ACPI spec, but it appears to be an oversight.
- */
- obj_desc =
- ACPI_CAST_PTR(union acpi_operand_object,
- op->common.node);
-
- status =
- acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
- (struct
- acpi_namespace_node,
- &obj_desc),
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- switch (op->common.node->type) {
- /*
- * For these types, we need the actual node, not the subobject.
- * However, the subobject did not get an extra reference count above.
- *
- * TBD: should ex_resolve_node_to_value be changed to fix this?
- */
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_THERMAL:
-
- acpi_ut_add_reference(op->common.node->object);
-
- /*lint -fallthrough */
- /*
- * For these types, we need the actual node, not the subobject.
- * The subobject got an extra reference count in ex_resolve_node_to_value.
- */
- case ACPI_TYPE_MUTEX:
- case ACPI_TYPE_METHOD:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_EVENT:
- case ACPI_TYPE_REGION:
-
- /* We will create a reference object for these types below */
- break;
-
- default:
- /*
- * All other types - the node was resolved to an actual
- * object, we are done.
- */
- goto exit;
- }
- }
- }
-
- /* Create and init a new internal ACPI object */
-
- obj_desc = acpi_ut_create_internal_object((acpi_ps_get_opcode_info
- (op->common.aml_opcode))->
- object_type);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- status =
- acpi_ds_init_object_from_op(walk_state, op, op->common.aml_opcode,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
- }
-
- exit:
- *obj_desc_ptr = obj_desc;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_build_internal_buffer_obj
- *
- * PARAMETERS: walk_state - Current walk state
- * Op - Parser object to be translated
- * buffer_length - Length of the buffer
- * obj_desc_ptr - Where the ACPI internal object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a parser Op package object to the equivalent
- * namespace object
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- u32 buffer_length,
- union acpi_operand_object **obj_desc_ptr)
-{
- union acpi_parse_object *arg;
- union acpi_operand_object *obj_desc;
- union acpi_parse_object *byte_list;
- u32 byte_list_length = 0;
-
- ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj);
-
- /*
- * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
- * The buffer object already exists (from the NS node), otherwise it must
- * be created.
- */
- obj_desc = *obj_desc_ptr;
- if (!obj_desc) {
-
- /* Create a new buffer object */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
- *obj_desc_ptr = obj_desc;
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- }
-
- /*
- * Second arg is the buffer data (optional) byte_list can be either
- * individual bytes or a string initializer. In either case, a
- * byte_list appears in the AML.
- */
- arg = op->common.value.arg; /* skip first arg */
-
- byte_list = arg->named.next;
- if (byte_list) {
- if (byte_list->common.aml_opcode != AML_INT_BYTELIST_OP) {
- ACPI_ERROR((AE_INFO,
- "Expecting bytelist, got AML opcode %X in op %p",
- byte_list->common.aml_opcode, byte_list));
-
- acpi_ut_remove_reference(obj_desc);
- return (AE_TYPE);
- }
-
- byte_list_length = (u32) byte_list->common.value.integer;
- }
-
- /*
- * The buffer length (number of bytes) will be the larger of:
- * 1) The specified buffer length and
- * 2) The length of the initializer byte list
- */
- obj_desc->buffer.length = buffer_length;
- if (byte_list_length > buffer_length) {
- obj_desc->buffer.length = byte_list_length;
- }
-
- /* Allocate the buffer */
-
- if (obj_desc->buffer.length == 0) {
- obj_desc->buffer.pointer = NULL;
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Buffer defined with zero length in AML, creating\n"));
- } else {
- obj_desc->buffer.pointer =
- ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length);
- if (!obj_desc->buffer.pointer) {
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize buffer from the byte_list (if present) */
-
- if (byte_list) {
- ACPI_MEMCPY(obj_desc->buffer.pointer,
- byte_list->named.data, byte_list_length);
- }
- }
-
- obj_desc->buffer.flags |= AOPOBJ_DATA_VALID;
- op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_build_internal_package_obj
- *
- * PARAMETERS: walk_state - Current walk state
- * Op - Parser object to be translated
- * element_count - Number of elements in the package - this is
- * the num_elements argument to Package()
- * obj_desc_ptr - Where the ACPI internal object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a parser Op package object to the equivalent
- * namespace object
- *
- * NOTE: The number of elements in the package will be always be the num_elements
- * count, regardless of the number of elements in the package list. If
- * num_elements is smaller, only that many package list elements are used.
- * if num_elements is larger, the Package object is padded out with
- * objects of type Uninitialized (as per ACPI spec.)
- *
- * Even though the ASL compilers do not allow num_elements to be smaller
- * than the Package list length (for the fixed length package opcode), some
- * BIOS code modifies the AML on the fly to adjust the num_elements, and
- * this code compensates for that. This also provides compatibility with
- * other AML interpreters.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- u32 element_count,
- union acpi_operand_object **obj_desc_ptr)
-{
- union acpi_parse_object *arg;
- union acpi_parse_object *parent;
- union acpi_operand_object *obj_desc = NULL;
- acpi_status status = AE_OK;
- unsigned i;
- u16 index;
- u16 reference_count;
-
- ACPI_FUNCTION_TRACE(ds_build_internal_package_obj);
-
- /* Find the parent of a possibly nested package */
-
- parent = op->common.parent;
- while ((parent->common.aml_opcode == AML_PACKAGE_OP) ||
- (parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
- parent = parent->common.parent;
- }
-
- /*
- * If we are evaluating a Named package object "Name (xxxx, Package)",
- * the package object already exists, otherwise it must be created.
- */
- obj_desc = *obj_desc_ptr;
- if (!obj_desc) {
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
- *obj_desc_ptr = obj_desc;
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- obj_desc->package.node = parent->common.node;
- }
-
- /*
- * Allocate the element array (array of pointers to the individual
- * objects) based on the num_elements parameter. Add an extra pointer slot
- * so that the list is always null terminated.
- */
- obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
- element_count +
- 1) * sizeof(void *));
-
- if (!obj_desc->package.elements) {
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- obj_desc->package.count = element_count;
-
- /*
- * Initialize the elements of the package, up to the num_elements count.
- * Package is automatically padded with uninitialized (NULL) elements
- * if num_elements is greater than the package list length. Likewise,
- * Package is truncated if num_elements is less than the list length.
- */
- arg = op->common.value.arg;
- arg = arg->common.next;
- for (i = 0; arg && (i < element_count); i++) {
- if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
- if (arg->common.node->type == ACPI_TYPE_METHOD) {
- /*
- * A method reference "looks" to the parser to be a method
- * invocation, so we special case it here
- */
- arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
- status =
- acpi_ds_build_internal_object(walk_state,
- arg,
- &obj_desc->
- package.
- elements[i]);
- } else {
- /* This package element is already built, just get it */
-
- obj_desc->package.elements[i] =
- ACPI_CAST_PTR(union acpi_operand_object,
- arg->common.node);
- }
- } else {
- status = acpi_ds_build_internal_object(walk_state, arg,
- &obj_desc->
- package.
- elements[i]);
- }
-
- if (*obj_desc_ptr) {
-
- /* Existing package, get existing reference count */
-
- reference_count =
- (*obj_desc_ptr)->common.reference_count;
- if (reference_count > 1) {
-
- /* Make new element ref count match original ref count */
-
- for (index = 0; index < (reference_count - 1);
- index++) {
- acpi_ut_add_reference((obj_desc->
- package.
- elements[i]));
- }
- }
- }
-
- arg = arg->common.next;
- }
-
- /* Check for match between num_elements and actual length of package_list */
-
- if (arg) {
- /*
- * num_elements was exhausted, but there are remaining elements in the
- * package_list.
- *
- * Note: technically, this is an error, from ACPI spec: "It is an error
- * for NumElements to be less than the number of elements in the
- * PackageList". However, for now, we just print an error message and
- * no exception is returned.
- */
- while (arg) {
-
- /* Find out how many elements there really are */
-
- i++;
- arg = arg->common.next;
- }
-
- ACPI_WARNING((AE_INFO,
- "Package List length (%X) larger than NumElements count (%X), truncated\n",
- i, element_count));
- } else if (i < element_count) {
- /*
- * Arg list (elements) was exhausted, but we did not reach num_elements count.
- * Note: this is not an error, the package is padded out with NULLs.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Package List length (%X) smaller than NumElements count (%X), padded with null elements\n",
- i, element_count));
- }
-
- obj_desc->package.flags |= AOPOBJ_DATA_VALID;
- op->common.node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_node
- *
- * PARAMETERS: walk_state - Current walk state
- * Node - NS Node to be initialized
- * Op - Parser object to be translated
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create the object to be associated with a namespace node
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_node(struct acpi_walk_state *walk_state,
- struct acpi_namespace_node *node,
- union acpi_parse_object *op)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_node, op);
-
- /*
- * Because of the execution pass through the non-control-method
- * parts of the table, we can arrive here twice. Only init
- * the named object node the first time through
- */
- if (acpi_ns_get_attached_object(node)) {
- return_ACPI_STATUS(AE_OK);
- }
-
- if (!op->common.value.arg) {
-
- /* No arguments, there is nothing to do */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Build an internal object for the argument(s) */
-
- status = acpi_ds_build_internal_object(walk_state, op->common.value.arg,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Re-type the object according to its argument */
-
- node->type = ACPI_GET_OBJECT_TYPE(obj_desc);
-
- /* Attach obj to node */
-
- status = acpi_ns_attach_object(node, obj_desc, node->type);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-#endif /* ACPI_NO_METHOD_EXECUTION */
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_init_object_from_op
- *
- * PARAMETERS: walk_state - Current walk state
- * Op - Parser op used to init the internal object
- * Opcode - AML opcode associated with the object
- * ret_obj_desc - Namespace object to be initialized
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize a namespace object from a parser Op and its
- * associated arguments. The namespace object is a more compact
- * representation of the Op and its arguments.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- u16 opcode,
- union acpi_operand_object **ret_obj_desc)
-{
- const struct acpi_opcode_info *op_info;
- union acpi_operand_object *obj_desc;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ds_init_object_from_op);
-
- obj_desc = *ret_obj_desc;
- op_info = acpi_ps_get_opcode_info(opcode);
- if (op_info->class == AML_CLASS_UNKNOWN) {
-
- /* Unknown opcode */
-
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /* Perform per-object initialization */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_BUFFER:
-
- /*
- * Defer evaluation of Buffer term_arg operand
- */
- obj_desc->buffer.node =
- ACPI_CAST_PTR(struct acpi_namespace_node,
- walk_state->operands[0]);
- obj_desc->buffer.aml_start = op->named.data;
- obj_desc->buffer.aml_length = op->named.length;
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- /*
- * Defer evaluation of Package term_arg operand
- */
- obj_desc->package.node =
- ACPI_CAST_PTR(struct acpi_namespace_node,
- walk_state->operands[0]);
- obj_desc->package.aml_start = op->named.data;
- obj_desc->package.aml_length = op->named.length;
- break;
-
- case ACPI_TYPE_INTEGER:
-
- switch (op_info->type) {
- case AML_TYPE_CONSTANT:
- /*
- * Resolve AML Constants here - AND ONLY HERE!
- * All constants are integers.
- * We mark the integer with a flag that indicates that it started
- * life as a constant -- so that stores to constants will perform
- * as expected (noop). zero_op is used as a placeholder for optional
- * target operands.
- */
- obj_desc->common.flags = AOPOBJ_AML_CONSTANT;
-
- switch (opcode) {
- case AML_ZERO_OP:
-
- obj_desc->integer.value = 0;
- break;
-
- case AML_ONE_OP:
-
- obj_desc->integer.value = 1;
- break;
-
- case AML_ONES_OP:
-
- obj_desc->integer.value = ACPI_INTEGER_MAX;
-
- /* Truncate value if we are executing from a 32-bit ACPI table */
-
-#ifndef ACPI_NO_METHOD_EXECUTION
- acpi_ex_truncate_for32bit_table(obj_desc);
-#endif
- break;
-
- case AML_REVISION_OP:
-
- obj_desc->integer.value = ACPI_CA_VERSION;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown constant opcode %X",
- opcode));
- status = AE_AML_OPERAND_TYPE;
- break;
- }
- break;
-
- case AML_TYPE_LITERAL:
-
- obj_desc->integer.value = op->common.value.integer;
-#ifndef ACPI_NO_METHOD_EXECUTION
- acpi_ex_truncate_for32bit_table(obj_desc);
-#endif
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Unknown Integer type %X",
- op_info->type));
- status = AE_AML_OPERAND_TYPE;
- break;
- }
- break;
-
- case ACPI_TYPE_STRING:
-
- obj_desc->string.pointer = op->common.value.string;
- obj_desc->string.length =
- (u32) ACPI_STRLEN(op->common.value.string);
-
- /*
- * The string is contained in the ACPI table, don't ever try
- * to delete it
- */
- obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
- break;
-
- case ACPI_TYPE_METHOD:
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- switch (op_info->type) {
- case AML_TYPE_LOCAL_VARIABLE:
-
- /* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
-
- obj_desc->reference.value = opcode - AML_LOCAL_OP;
- obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
-
-#ifndef ACPI_NO_METHOD_EXECUTION
- status =
- acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL,
- obj_desc->reference.
- value, walk_state,
- ACPI_CAST_INDIRECT_PTR
- (struct
- acpi_namespace_node,
- &obj_desc->reference.
- object));
-#endif
- break;
-
- case AML_TYPE_METHOD_ARGUMENT:
-
- /* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
-
- obj_desc->reference.value = opcode - AML_ARG_OP;
- obj_desc->reference.class = ACPI_REFCLASS_ARG;
-
-#ifndef ACPI_NO_METHOD_EXECUTION
- status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG,
- obj_desc->
- reference.value,
- walk_state,
- ACPI_CAST_INDIRECT_PTR
- (struct
- acpi_namespace_node,
- &obj_desc->
- reference.
- object));
-#endif
- break;
-
- default: /* Object name or Debug object */
-
- switch (op->common.aml_opcode) {
- case AML_INT_NAMEPATH_OP:
-
- /* Node was saved in Op */
-
- obj_desc->reference.node = op->common.node;
- obj_desc->reference.object =
- op->common.node->object;
- obj_desc->reference.class = ACPI_REFCLASS_NAME;
- break;
-
- case AML_DEBUG_OP:
-
- obj_desc->reference.class = ACPI_REFCLASS_DEBUG;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unimplemented reference type for AML opcode: %4.4X",
- opcode));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- break;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unimplemented data type: %X",
- ACPI_GET_OBJECT_TYPE(obj_desc)));
-
- status = AE_AML_OPERAND_TYPE;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dsopcode - Dispatcher Op Region support and handling of
- * "control" opcodes
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsopcode")
-
-/* Local prototypes */
-static acpi_status
-acpi_ds_execute_arguments(struct acpi_namespace_node *node,
- struct acpi_namespace_node *scope_node,
- u32 aml_length, u8 * aml_start);
-
-static acpi_status
-acpi_ds_init_buffer_field(u16 aml_opcode,
- union acpi_operand_object *obj_desc,
- union acpi_operand_object *buffer_desc,
- union acpi_operand_object *offset_desc,
- union acpi_operand_object *length_desc,
- union acpi_operand_object *result_desc);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_execute_arguments
- *
- * PARAMETERS: Node - Object NS node
- * scope_node - Parent NS node
- * aml_length - Length of executable AML
- * aml_start - Pointer to the AML
- *
- * RETURN: Status.
- *
- * DESCRIPTION: Late (deferred) execution of region or field arguments
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_execute_arguments(struct acpi_namespace_node *node,
- struct acpi_namespace_node *scope_node,
- u32 aml_length, u8 * aml_start)
-{
- acpi_status status;
- union acpi_parse_object *op;
- struct acpi_walk_state *walk_state;
-
- ACPI_FUNCTION_TRACE(ds_execute_arguments);
-
- /*
- * Allocate a new parser op to be the root of the parsed tree
- */
- op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
- if (!op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Save the Node for use in acpi_ps_parse_aml */
-
- op->common.node = scope_node;
-
- /* Create and initialize a new parser state */
-
- walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
- if (!walk_state) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
- aml_length, NULL, ACPI_IMODE_LOAD_PASS1);
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
- /* Mark this parse as a deferred opcode */
-
- walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP;
- walk_state->deferred_node = node;
-
- /* Pass1: Parse the entire declaration */
-
- status = acpi_ps_parse_aml(walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Get and init the Op created above */
-
- op->common.node = node;
- acpi_ps_delete_parse_tree(op);
-
- /* Evaluate the deferred arguments */
-
- op = acpi_ps_alloc_op(AML_INT_EVAL_SUBTREE_OP);
- if (!op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- op->common.node = scope_node;
-
- /* Create and initialize a new parser state */
-
- walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL);
- if (!walk_state) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Execute the opcode and arguments */
-
- status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start,
- aml_length, NULL, ACPI_IMODE_EXECUTE);
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
- /* Mark this execution as a deferred opcode */
-
- walk_state->deferred_node = node;
- status = acpi_ps_parse_aml(walk_state);
-
- cleanup:
- acpi_ps_delete_parse_tree(op);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_get_buffer_field_arguments
- *
- * PARAMETERS: obj_desc - A valid buffer_field object
- *
- * RETURN: Status.
- *
- * DESCRIPTION: Get buffer_field Buffer and Index. This implements the late
- * evaluation of these field attributes.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc)
-{
- union acpi_operand_object *extra_desc;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc);
-
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Get the AML pointer (method object) and buffer_field node */
-
- extra_desc = acpi_ns_get_secondary_object(obj_desc);
- node = obj_desc->buffer_field.node;
-
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_BUFFER_FIELD, node, NULL));
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
- acpi_ut_get_node_name(node)));
-
- /* Execute the AML code for the term_arg arguments */
-
- status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
- extra_desc->extra.aml_length,
- extra_desc->extra.aml_start);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_get_bank_field_arguments
- *
- * PARAMETERS: obj_desc - A valid bank_field object
- *
- * RETURN: Status.
- *
- * DESCRIPTION: Get bank_field bank_value. This implements the late
- * evaluation of these field attributes.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_get_bank_field_arguments(union acpi_operand_object *obj_desc)
-{
- union acpi_operand_object *extra_desc;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_bank_field_arguments, obj_desc);
-
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Get the AML pointer (method object) and bank_field node */
-
- extra_desc = acpi_ns_get_secondary_object(obj_desc);
- node = obj_desc->bank_field.node;
-
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_LOCAL_BANK_FIELD, node, NULL));
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
- acpi_ut_get_node_name(node)));
-
- /* Execute the AML code for the term_arg arguments */
-
- status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
- extra_desc->extra.aml_length,
- extra_desc->extra.aml_start);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_get_buffer_arguments
- *
- * PARAMETERS: obj_desc - A valid Buffer object
- *
- * RETURN: Status.
- *
- * DESCRIPTION: Get Buffer length and initializer byte list. This implements
- * the late evaluation of these attributes.
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc);
-
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Get the Buffer node */
-
- node = obj_desc->buffer.node;
- if (!node) {
- ACPI_ERROR((AE_INFO,
- "No pointer back to NS node in buffer obj %p",
- obj_desc));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Buffer Arg Init\n"));
-
- /* Execute the AML code for the term_arg arguments */
-
- status = acpi_ds_execute_arguments(node, node,
- obj_desc->buffer.aml_length,
- obj_desc->buffer.aml_start);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_get_package_arguments
- *
- * PARAMETERS: obj_desc - A valid Package object
- *
- * RETURN: Status.
- *
- * DESCRIPTION: Get Package length and initializer byte list. This implements
- * the late evaluation of these attributes.
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc);
-
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Get the Package node */
-
- node = obj_desc->package.node;
- if (!node) {
- ACPI_ERROR((AE_INFO,
- "No pointer back to NS node in package %p",
- obj_desc));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Package Arg Init\n"));
-
- /* Execute the AML code for the term_arg arguments */
-
- status = acpi_ds_execute_arguments(node, node,
- obj_desc->package.aml_length,
- obj_desc->package.aml_start);
- return_ACPI_STATUS(status);
-}
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_ds_get_region_arguments
- *
- * PARAMETERS: obj_desc - A valid region object
- *
- * RETURN: Status.
- *
- * DESCRIPTION: Get region address and length. This implements the late
- * evaluation of these region attributes.
- *
- ****************************************************************************/
-
-acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
- union acpi_operand_object *extra_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc);
-
- if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
- return_ACPI_STATUS(AE_OK);
- }
-
- extra_desc = acpi_ns_get_secondary_object(obj_desc);
- if (!extra_desc) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Get the Region node */
-
- node = obj_desc->region.node;
-
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_REGION, node, NULL));
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
- acpi_ut_get_node_name(node),
- extra_desc->extra.aml_start));
-
- /* Execute the argument AML */
-
- status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
- extra_desc->extra.aml_length,
- extra_desc->extra.aml_start);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Validate the region address/length via the host OS */
-
- status = acpi_os_validate_address(obj_desc->region.space_id,
- obj_desc->region.address,
- (acpi_size) obj_desc->region.length,
- acpi_ut_get_node_name(node));
-
- if (ACPI_FAILURE(status)) {
- /*
- * Invalid address/length. We will emit an error message and mark
- * the region as invalid, so that it will cause an additional error if
- * it is ever used. Then return AE_OK.
- */
- ACPI_EXCEPTION((AE_INFO, status,
- "During address validation of OpRegion [%4.4s]",
- node->name.ascii));
- obj_desc->common.flags |= AOPOBJ_INVALID;
- status = AE_OK;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_initialize_region
- *
- * PARAMETERS: obj_handle - Region namespace node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Front end to ev_initialize_region
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_initialize_region(acpi_handle obj_handle)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- obj_desc = acpi_ns_get_attached_object(obj_handle);
-
- /* Namespace is NOT locked */
-
- status = acpi_ev_initialize_region(obj_desc, FALSE);
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_init_buffer_field
- *
- * PARAMETERS: aml_opcode - create_xxx_field
- * obj_desc - buffer_field object
- * buffer_desc - Host Buffer
- * offset_desc - Offset into buffer
- * length_desc - Length of field (CREATE_FIELD_OP only)
- * result_desc - Where to store the result
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform actual initialization of a buffer field
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ds_init_buffer_field(u16 aml_opcode,
- union acpi_operand_object *obj_desc,
- union acpi_operand_object *buffer_desc,
- union acpi_operand_object *offset_desc,
- union acpi_operand_object *length_desc,
- union acpi_operand_object *result_desc)
-{
- u32 offset;
- u32 bit_offset;
- u32 bit_count;
- u8 field_flags;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc);
-
- /* Host object must be a Buffer */
-
- if (ACPI_GET_OBJECT_TYPE(buffer_desc) != ACPI_TYPE_BUFFER) {
- ACPI_ERROR((AE_INFO,
- "Target of Create Field is not a Buffer object - %s",
- acpi_ut_get_object_type_name(buffer_desc)));
-
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
-
- /*
- * The last parameter to all of these opcodes (result_desc) started
- * out as a name_string, and should therefore now be a NS node
- * after resolution in acpi_ex_resolve_operands().
- */
- if (ACPI_GET_DESCRIPTOR_TYPE(result_desc) != ACPI_DESC_TYPE_NAMED) {
- ACPI_ERROR((AE_INFO,
- "(%s) destination not a NS Node [%s]",
- acpi_ps_get_opcode_name(aml_opcode),
- acpi_ut_get_descriptor_name(result_desc)));
-
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
-
- offset = (u32) offset_desc->integer.value;
-
- /*
- * Setup the Bit offsets and counts, according to the opcode
- */
- switch (aml_opcode) {
- case AML_CREATE_FIELD_OP:
-
- /* Offset is in bits, count is in bits */
-
- field_flags = AML_FIELD_ACCESS_BYTE;
- bit_offset = offset;
- bit_count = (u32) length_desc->integer.value;
-
- /* Must have a valid (>0) bit count */
-
- if (bit_count == 0) {
- ACPI_ERROR((AE_INFO,
- "Attempt to CreateField of length zero"));
- status = AE_AML_OPERAND_VALUE;
- goto cleanup;
- }
- break;
-
- case AML_CREATE_BIT_FIELD_OP:
-
- /* Offset is in bits, Field is one bit */
-
- bit_offset = offset;
- bit_count = 1;
- field_flags = AML_FIELD_ACCESS_BYTE;
- break;
-
- case AML_CREATE_BYTE_FIELD_OP:
-
- /* Offset is in bytes, field is one byte */
-
- bit_offset = 8 * offset;
- bit_count = 8;
- field_flags = AML_FIELD_ACCESS_BYTE;
- break;
-
- case AML_CREATE_WORD_FIELD_OP:
-
- /* Offset is in bytes, field is one word */
-
- bit_offset = 8 * offset;
- bit_count = 16;
- field_flags = AML_FIELD_ACCESS_WORD;
- break;
-
- case AML_CREATE_DWORD_FIELD_OP:
-
- /* Offset is in bytes, field is one dword */
-
- bit_offset = 8 * offset;
- bit_count = 32;
- field_flags = AML_FIELD_ACCESS_DWORD;
- break;
-
- case AML_CREATE_QWORD_FIELD_OP:
-
- /* Offset is in bytes, field is one qword */
-
- bit_offset = 8 * offset;
- bit_count = 64;
- field_flags = AML_FIELD_ACCESS_QWORD;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown field creation opcode %02x", aml_opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- /* Entire field must fit within the current length of the buffer */
-
- if ((bit_offset + bit_count) > (8 * (u32) buffer_desc->buffer.length)) {
- ACPI_ERROR((AE_INFO,
- "Field [%4.4s] at %d exceeds Buffer [%4.4s] size %d (bits)",
- acpi_ut_get_node_name(result_desc),
- bit_offset + bit_count,
- acpi_ut_get_node_name(buffer_desc->buffer.node),
- 8 * (u32) buffer_desc->buffer.length));
- status = AE_AML_BUFFER_LIMIT;
- goto cleanup;
- }
-
- /*
- * Initialize areas of the field object that are common to all fields
- * For field_flags, use LOCK_RULE = 0 (NO_LOCK),
- * UPDATE_RULE = 0 (UPDATE_PRESERVE)
- */
- status = acpi_ex_prep_common_field_object(obj_desc, field_flags, 0,
- bit_offset, bit_count);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- obj_desc->buffer_field.buffer_obj = buffer_desc;
-
- /* Reference count for buffer_desc inherits obj_desc count */
-
- buffer_desc->common.reference_count = (u16)
- (buffer_desc->common.reference_count +
- obj_desc->common.reference_count);
-
- cleanup:
-
- /* Always delete the operands */
-
- acpi_ut_remove_reference(offset_desc);
- acpi_ut_remove_reference(buffer_desc);
-
- if (aml_opcode == AML_CREATE_FIELD_OP) {
- acpi_ut_remove_reference(length_desc);
- }
-
- /* On failure, delete the result descriptor */
-
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(result_desc); /* Result descriptor */
- } else {
- /* Now the address and length are valid for this buffer_field */
-
- obj_desc->buffer_field.flags |= AOPOBJ_DATA_VALID;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_eval_buffer_field_operands
- *
- * PARAMETERS: walk_state - Current walk
- * Op - A valid buffer_field Op object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get buffer_field Buffer and Index
- * Called from acpi_ds_exec_end_op during buffer_field parse tree walk
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- union acpi_parse_object *next_op;
-
- ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op);
-
- /*
- * This is where we evaluate the address and length fields of the
- * create_xxx_field declaration
- */
- node = op->common.node;
-
- /* next_op points to the op that holds the Buffer */
-
- next_op = op->common.value.arg;
-
- /* Evaluate/create the address and length operands */
-
- status = acpi_ds_create_operands(walk_state, next_op);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Resolve the operands */
-
- status = acpi_ex_resolve_operands(op->common.aml_opcode,
- ACPI_WALK_OPERANDS, walk_state);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)",
- acpi_ps_get_opcode_name(op->common.aml_opcode),
- status));
-
- return_ACPI_STATUS(status);
- }
-
- /* Initialize the Buffer Field */
-
- if (op->common.aml_opcode == AML_CREATE_FIELD_OP) {
-
- /* NOTE: Slightly different operands for this opcode */
-
- status =
- acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc,
- walk_state->operands[0],
- walk_state->operands[1],
- walk_state->operands[2],
- walk_state->operands[3]);
- } else {
- /* All other, create_xxx_field opcodes */
-
- status =
- acpi_ds_init_buffer_field(op->common.aml_opcode, obj_desc,
- walk_state->operands[0],
- walk_state->operands[1], NULL,
- walk_state->operands[2]);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_eval_region_operands
- *
- * PARAMETERS: walk_state - Current walk
- * Op - A valid region Op object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get region address and length
- * Called from acpi_ds_exec_end_op during op_region parse tree walk
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *operand_desc;
- struct acpi_namespace_node *node;
- union acpi_parse_object *next_op;
-
- ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op);
-
- /*
- * This is where we evaluate the address and length fields of the
- * op_region declaration
- */
- node = op->common.node;
-
- /* next_op points to the op that holds the space_iD */
-
- next_op = op->common.value.arg;
-
- /* next_op points to address op */
-
- next_op = next_op->common.next;
-
- /* Evaluate/create the address and length operands */
-
- status = acpi_ds_create_operands(walk_state, next_op);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Resolve the length and address operands to numbers */
-
- status = acpi_ex_resolve_operands(op->common.aml_opcode,
- ACPI_WALK_OPERANDS, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /*
- * Get the length operand and save it
- * (at Top of stack)
- */
- operand_desc = walk_state->operands[walk_state->num_operands - 1];
-
- obj_desc->region.length = (u32) operand_desc->integer.value;
- acpi_ut_remove_reference(operand_desc);
-
- /*
- * Get the address and save it
- * (at top of stack - 1)
- */
- operand_desc = walk_state->operands[walk_state->num_operands - 2];
-
- obj_desc->region.address = (acpi_physical_address)
- operand_desc->integer.value;
- acpi_ut_remove_reference(operand_desc);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
- obj_desc,
- ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address),
- obj_desc->region.length));
-
- /* Now the address and length are valid for this opregion */
-
- obj_desc->region.flags |= AOPOBJ_DATA_VALID;
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_eval_table_region_operands
- *
- * PARAMETERS: walk_state - Current walk
- * Op - A valid region Op object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get region address and length
- * Called from acpi_ds_exec_end_op during data_table_region parse tree walk
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object **operand;
- struct acpi_namespace_node *node;
- union acpi_parse_object *next_op;
- u32 table_index;
- struct acpi_table_header *table;
-
- ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op);
-
- /*
- * This is where we evaluate the signature_string and oem_iDString
- * and oem_table_iDString of the data_table_region declaration
- */
- node = op->common.node;
-
- /* next_op points to signature_string op */
-
- next_op = op->common.value.arg;
-
- /*
- * Evaluate/create the signature_string and oem_iDString
- * and oem_table_iDString operands
- */
- status = acpi_ds_create_operands(walk_state, next_op);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Resolve the signature_string and oem_iDString
- * and oem_table_iDString operands
- */
- status = acpi_ex_resolve_operands(op->common.aml_opcode,
- ACPI_WALK_OPERANDS, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- operand = &walk_state->operands[0];
-
- /* Find the ACPI table */
-
- status = acpi_tb_find_table(operand[0]->string.pointer,
- operand[1]->string.pointer,
- operand[2]->string.pointer, &table_index);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- acpi_ut_remove_reference(operand[0]);
- acpi_ut_remove_reference(operand[1]);
- acpi_ut_remove_reference(operand[2]);
-
- status = acpi_get_table_by_index(table_index, &table);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- obj_desc->region.address =
- (acpi_physical_address) ACPI_TO_INTEGER(table);
- obj_desc->region.length = table->length;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
- obj_desc,
- ACPI_FORMAT_NATIVE_UINT(obj_desc->region.address),
- obj_desc->region.length));
-
- /* Now the address and length are valid for this opregion */
-
- obj_desc->region.flags |= AOPOBJ_DATA_VALID;
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_eval_data_object_operands
- *
- * PARAMETERS: walk_state - Current walk
- * Op - A valid data_object Op object
- * obj_desc - data_object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get the operands and complete the following data object types:
- * Buffer, Package.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- union acpi_operand_object *obj_desc)
-{
- acpi_status status;
- union acpi_operand_object *arg_desc;
- u32 length;
-
- ACPI_FUNCTION_TRACE(ds_eval_data_object_operands);
-
- /* The first operand (for all of these data objects) is the length */
-
- /*
- * Set proper index into operand stack for acpi_ds_obj_stack_push
- * invoked inside acpi_ds_create_operand.
- */
- walk_state->operand_index = walk_state->num_operands;
-
- status = acpi_ds_create_operand(walk_state, op->common.value.arg, 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_ex_resolve_operands(walk_state->opcode,
- &(walk_state->
- operands[walk_state->num_operands -
- 1]), walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Extract length operand */
-
- arg_desc = walk_state->operands[walk_state->num_operands - 1];
- length = (u32) arg_desc->integer.value;
-
- /* Cleanup for length operand */
-
- status = acpi_ds_obj_stack_pop(1, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- acpi_ut_remove_reference(arg_desc);
-
- /*
- * Create the actual data object
- */
- switch (op->common.aml_opcode) {
- case AML_BUFFER_OP:
-
- status =
- acpi_ds_build_internal_buffer_obj(walk_state, op, length,
- &obj_desc);
- break;
-
- case AML_PACKAGE_OP:
- case AML_VAR_PACKAGE_OP:
-
- status =
- acpi_ds_build_internal_package_obj(walk_state, op, length,
- &obj_desc);
- break;
-
- default:
- return_ACPI_STATUS(AE_AML_BAD_OPCODE);
- }
-
- if (ACPI_SUCCESS(status)) {
- /*
- * Return the object in the walk_state, unless the parent is a package -
- * in this case, the return object will be stored in the parse tree
- * for the package.
- */
- if ((!op->common.parent) ||
- ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) &&
- (op->common.parent->common.aml_opcode !=
- AML_VAR_PACKAGE_OP)
- && (op->common.parent->common.aml_opcode != AML_NAME_OP))) {
- walk_state->result_obj = obj_desc;
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_eval_bank_field_operands
- *
- * PARAMETERS: walk_state - Current walk
- * Op - A valid bank_field Op object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get bank_field bank_value
- * Called from acpi_ds_exec_end_op during bank_field parse tree walk
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *operand_desc;
- struct acpi_namespace_node *node;
- union acpi_parse_object *next_op;
- union acpi_parse_object *arg;
-
- ACPI_FUNCTION_TRACE_PTR(ds_eval_bank_field_operands, op);
-
- /*
- * This is where we evaluate the bank_value field of the
- * bank_field declaration
- */
-
- /* next_op points to the op that holds the Region */
-
- next_op = op->common.value.arg;
-
- /* next_op points to the op that holds the Bank Register */
-
- next_op = next_op->common.next;
-
- /* next_op points to the op that holds the Bank Value */
-
- next_op = next_op->common.next;
-
- /*
- * Set proper index into operand stack for acpi_ds_obj_stack_push
- * invoked inside acpi_ds_create_operand.
- *
- * We use walk_state->Operands[0] to store the evaluated bank_value
- */
- walk_state->operand_index = 0;
-
- status = acpi_ds_create_operand(walk_state, next_op, 0);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_ex_resolve_to_value(&walk_state->operands[0], walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS,
- acpi_ps_get_opcode_name(op->common.aml_opcode), 1);
- /*
- * Get the bank_value operand and save it
- * (at Top of stack)
- */
- operand_desc = walk_state->operands[0];
-
- /* Arg points to the start Bank Field */
-
- arg = acpi_ps_get_arg(op, 4);
- while (arg) {
-
- /* Ignore OFFSET and ACCESSAS terms here */
-
- if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
- node = arg->common.node;
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- obj_desc->bank_field.value =
- (u32) operand_desc->integer.value;
- }
-
- /* Move to next field in the list */
-
- arg = arg->common.next;
- }
-
- acpi_ut_remove_reference(operand_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_exec_begin_control_op
- *
- * PARAMETERS: walk_list - The list that owns the walk stack
- * Op - The control Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handles all control ops encountered during control method
- * execution.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op)
-{
- acpi_status status = AE_OK;
- union acpi_generic_state *control_state;
-
- ACPI_FUNCTION_NAME(ds_exec_begin_control_op);
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op,
- op->common.aml_opcode, walk_state));
-
- switch (op->common.aml_opcode) {
- case AML_WHILE_OP:
-
- /*
- * If this is an additional iteration of a while loop, continue.
- * There is no need to allocate a new control state.
- */
- if (walk_state->control_state) {
- if (walk_state->control_state->control.aml_predicate_start
- == (walk_state->parser_state.aml - 1)) {
-
- /* Reset the state to start-of-loop */
-
- walk_state->control_state->common.state =
- ACPI_CONTROL_CONDITIONAL_EXECUTING;
- break;
- }
- }
-
- /*lint -fallthrough */
-
- case AML_IF_OP:
-
- /*
- * IF/WHILE: Create a new control state to manage these
- * constructs. We need to manage these as a stack, in order
- * to handle nesting.
- */
- control_state = acpi_ut_create_control_state();
- if (!control_state) {
- status = AE_NO_MEMORY;
- break;
- }
- /*
- * Save a pointer to the predicate for multiple executions
- * of a loop
- */
- control_state->control.aml_predicate_start =
- walk_state->parser_state.aml - 1;
- control_state->control.package_end =
- walk_state->parser_state.pkg_end;
- control_state->control.opcode = op->common.aml_opcode;
-
- /* Push the control state on this walk's control stack */
-
- acpi_ut_push_generic_state(&walk_state->control_state,
- control_state);
- break;
-
- case AML_ELSE_OP:
-
- /* Predicate is in the state object */
- /* If predicate is true, the IF was executed, ignore ELSE part */
-
- if (walk_state->last_predicate) {
- status = AE_CTRL_TRUE;
- }
-
- break;
-
- case AML_RETURN_OP:
-
- break;
-
- default:
- break;
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_exec_end_control_op
- *
- * PARAMETERS: walk_list - The list that owns the walk stack
- * Op - The control Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handles all control ops encountered during control method
- * execution.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state,
- union acpi_parse_object * op)
-{
- acpi_status status = AE_OK;
- union acpi_generic_state *control_state;
-
- ACPI_FUNCTION_NAME(ds_exec_end_control_op);
-
- switch (op->common.aml_opcode) {
- case AML_IF_OP:
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", op));
-
- /*
- * Save the result of the predicate in case there is an
- * ELSE to come
- */
- walk_state->last_predicate =
- (u8) walk_state->control_state->common.value;
-
- /*
- * Pop the control state that was created at the start
- * of the IF and free it
- */
- control_state =
- acpi_ut_pop_generic_state(&walk_state->control_state);
- acpi_ut_delete_generic_state(control_state);
- break;
-
- case AML_ELSE_OP:
-
- break;
-
- case AML_WHILE_OP:
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op));
-
- control_state = walk_state->control_state;
- if (control_state->common.value) {
-
- /* Predicate was true, the body of the loop was just executed */
-
- /*
- * This loop counter mechanism allows the interpreter to escape
- * possibly infinite loops. This can occur in poorly written AML
- * when the hardware does not respond within a while loop and the
- * loop does not implement a timeout.
- */
- control_state->control.loop_count++;
- if (control_state->control.loop_count >
- ACPI_MAX_LOOP_ITERATIONS) {
- status = AE_AML_INFINITE_LOOP;
- break;
- }
-
- /*
- * Go back and evaluate the predicate and maybe execute the loop
- * another time
- */
- status = AE_CTRL_PENDING;
- walk_state->aml_last_while =
- control_state->control.aml_predicate_start;
- break;
- }
-
- /* Predicate was false, terminate this while loop */
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "[WHILE_OP] termination! Op=%p\n", op));
-
- /* Pop this control state and free it */
-
- control_state =
- acpi_ut_pop_generic_state(&walk_state->control_state);
- acpi_ut_delete_generic_state(control_state);
- break;
-
- case AML_RETURN_OP:
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "[RETURN_OP] Op=%p Arg=%p\n", op,
- op->common.value.arg));
-
- /*
- * One optional operand -- the return value
- * It can be either an immediate operand or a result that
- * has been bubbled up the tree
- */
- if (op->common.value.arg) {
-
- /* Since we have a real Return(), delete any implicit return */
-
- acpi_ds_clear_implicit_return(walk_state);
-
- /* Return statement has an immediate operand */
-
- status =
- acpi_ds_create_operands(walk_state,
- op->common.value.arg);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /*
- * If value being returned is a Reference (such as
- * an arg or local), resolve it now because it may
- * cease to exist at the end of the method.
- */
- status =
- acpi_ex_resolve_to_value(&walk_state->operands[0],
- walk_state);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /*
- * Get the return value and save as the last result
- * value. This is the only place where walk_state->return_desc
- * is set to anything other than zero!
- */
- walk_state->return_desc = walk_state->operands[0];
- } else if (walk_state->result_count) {
-
- /* Since we have a real Return(), delete any implicit return */
-
- acpi_ds_clear_implicit_return(walk_state);
-
- /*
- * The return value has come from a previous calculation.
- *
- * If value being returned is a Reference (such as
- * an arg or local), resolve it now because it may
- * cease to exist at the end of the method.
- *
- * Allow references created by the Index operator to return unchanged.
- */
- if ((ACPI_GET_DESCRIPTOR_TYPE
- (walk_state->results->results.obj_desc[0]) ==
- ACPI_DESC_TYPE_OPERAND)
- &&
- (ACPI_GET_OBJECT_TYPE
- (walk_state->results->results.obj_desc[0]) ==
- ACPI_TYPE_LOCAL_REFERENCE)
- && ((walk_state->results->results.obj_desc[0])->
- reference.class != ACPI_REFCLASS_INDEX)) {
- status =
- acpi_ex_resolve_to_value(&walk_state->
- results->results.
- obj_desc[0],
- walk_state);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- walk_state->return_desc =
- walk_state->results->results.obj_desc[0];
- } else {
- /* No return operand */
-
- if (walk_state->num_operands) {
- acpi_ut_remove_reference(walk_state->
- operands[0]);
- }
-
- walk_state->operands[0] = NULL;
- walk_state->num_operands = 0;
- walk_state->return_desc = NULL;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Completed RETURN_OP State=%p, RetVal=%p\n",
- walk_state, walk_state->return_desc));
-
- /* End the control method execution right now */
-
- status = AE_CTRL_TERMINATE;
- break;
-
- case AML_NOOP_OP:
-
- /* Just do nothing! */
- break;
-
- case AML_BREAK_POINT_OP:
-
- /* Call up to the OS service layer to handle this */
-
- status =
- acpi_os_signal(ACPI_SIGNAL_BREAKPOINT,
- "Executed AML Breakpoint opcode");
-
- /* If and when it returns, all done. */
-
- break;
-
- case AML_BREAK_OP:
- case AML_CONTINUE_OP: /* ACPI 2.0 */
-
- /* Pop and delete control states until we find a while */
-
- while (walk_state->control_state &&
- (walk_state->control_state->control.opcode !=
- AML_WHILE_OP)) {
- control_state =
- acpi_ut_pop_generic_state(&walk_state->
- control_state);
- acpi_ut_delete_generic_state(control_state);
- }
-
- /* No while found? */
-
- if (!walk_state->control_state) {
- return (AE_AML_NO_WHILE);
- }
-
- /* Was: walk_state->aml_last_while = walk_state->control_state->Control.aml_predicate_start; */
-
- walk_state->aml_last_while =
- walk_state->control_state->control.package_end;
-
- /* Return status depending on opcode */
-
- if (op->common.aml_opcode == AML_BREAK_OP) {
- status = AE_CTRL_BREAK;
- } else {
- status = AE_CTRL_CONTINUE;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown control opcode=%X Op=%p",
- op->common.aml_opcode, op));
-
- status = AE_AML_BAD_OPCODE;
- break;
- }
-
- return (status);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: dsutils - Dispatcher utilities
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dsutils")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_clear_implicit_return
- *
- * PARAMETERS: walk_state - Current State
- *
- * RETURN: None.
- *
- * DESCRIPTION: Clear and remove a reference on an implicit return value. Used
- * to delete "stale" return values (if enabled, the return value
- * from every operator is saved at least momentarily, in case the
- * parent method exits.)
- *
- ******************************************************************************/
-void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state)
-{
- ACPI_FUNCTION_NAME(ds_clear_implicit_return);
-
- /*
- * Slack must be enabled for this feature
- */
- if (!acpi_gbl_enable_interpreter_slack) {
- return;
- }
-
- if (walk_state->implicit_return_obj) {
- /*
- * Delete any "stale" implicit return. However, in
- * complex statements, the implicit return value can be
- * bubbled up several levels.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Removing reference on stale implicit return obj %p\n",
- walk_state->implicit_return_obj));
-
- acpi_ut_remove_reference(walk_state->implicit_return_obj);
- walk_state->implicit_return_obj = NULL;
- }
-}
-
-#ifndef ACPI_NO_METHOD_EXECUTION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_do_implicit_return
- *
- * PARAMETERS: return_desc - The return value
- * walk_state - Current State
- * add_reference - True if a reference should be added to the
- * return object
- *
- * RETURN: TRUE if implicit return enabled, FALSE otherwise
- *
- * DESCRIPTION: Implements the optional "implicit return". We save the result
- * of every ASL operator and control method invocation in case the
- * parent method exit. Before storing a new return value, we
- * delete the previous return value.
- *
- ******************************************************************************/
-
-u8
-acpi_ds_do_implicit_return(union acpi_operand_object *return_desc,
- struct acpi_walk_state *walk_state, u8 add_reference)
-{
- ACPI_FUNCTION_NAME(ds_do_implicit_return);
-
- /*
- * Slack must be enabled for this feature, and we must
- * have a valid return object
- */
- if ((!acpi_gbl_enable_interpreter_slack) || (!return_desc)) {
- return (FALSE);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Result %p will be implicitly returned; Prev=%p\n",
- return_desc, walk_state->implicit_return_obj));
-
- /*
- * Delete any "stale" implicit return value first. However, in
- * complex statements, the implicit return value can be
- * bubbled up several levels, so we don't clear the value if it
- * is the same as the return_desc.
- */
- if (walk_state->implicit_return_obj) {
- if (walk_state->implicit_return_obj == return_desc) {
- return (TRUE);
- }
- acpi_ds_clear_implicit_return(walk_state);
- }
-
- /* Save the implicit return value, add a reference if requested */
-
- walk_state->implicit_return_obj = return_desc;
- if (add_reference) {
- acpi_ut_add_reference(return_desc);
- }
-
- return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_is_result_used
- *
- * PARAMETERS: Op - Current Op
- * walk_state - Current State
- *
- * RETURN: TRUE if result is used, FALSE otherwise
- *
- * DESCRIPTION: Check if a result object will be used by the parent
- *
- ******************************************************************************/
-
-u8
-acpi_ds_is_result_used(union acpi_parse_object * op,
- struct acpi_walk_state * walk_state)
-{
- const struct acpi_opcode_info *parent_info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op);
-
- /* Must have both an Op and a Result Object */
-
- if (!op) {
- ACPI_ERROR((AE_INFO, "Null Op"));
- return_UINT8(TRUE);
- }
-
- /*
- * We know that this operator is not a
- * Return() operator (would not come here.) The following code is the
- * optional support for a so-called "implicit return". Some AML code
- * assumes that the last value of the method is "implicitly" returned
- * to the caller. Just save the last result as the return value.
- * NOTE: this is optional because the ASL language does not actually
- * support this behavior.
- */
- (void)acpi_ds_do_implicit_return(walk_state->result_obj, walk_state,
- TRUE);
-
- /*
- * Now determine if the parent will use the result
- *
- * If there is no parent, or the parent is a scope_op, we are executing
- * at the method level. An executing method typically has no parent,
- * since each method is parsed separately. A method invoked externally
- * via execute_control_method has a scope_op as the parent.
- */
- if ((!op->common.parent) ||
- (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) {
-
- /* No parent, the return value cannot possibly be used */
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "At Method level, result of [%s] not used\n",
- acpi_ps_get_opcode_name(op->common.
- aml_opcode)));
- return_UINT8(FALSE);
- }
-
- /* Get info on the parent. The root_op is AML_SCOPE */
-
- parent_info =
- acpi_ps_get_opcode_info(op->common.parent->common.aml_opcode);
- if (parent_info->class == AML_CLASS_UNKNOWN) {
- ACPI_ERROR((AE_INFO, "Unknown parent opcode Op=%p", op));
- return_UINT8(FALSE);
- }
-
- /*
- * Decide what to do with the result based on the parent. If
- * the parent opcode will not use the result, delete the object.
- * Otherwise leave it as is, it will be deleted when it is used
- * as an operand later.
- */
- switch (parent_info->class) {
- case AML_CLASS_CONTROL:
-
- switch (op->common.parent->common.aml_opcode) {
- case AML_RETURN_OP:
-
- /* Never delete the return value associated with a return opcode */
-
- goto result_used;
-
- case AML_IF_OP:
- case AML_WHILE_OP:
-
- /*
- * If we are executing the predicate AND this is the predicate op,
- * we will use the return value
- */
- if ((walk_state->control_state->common.state ==
- ACPI_CONTROL_PREDICATE_EXECUTING)
- && (walk_state->control_state->control.
- predicate_op == op)) {
- goto result_used;
- }
- break;
-
- default:
- /* Ignore other control opcodes */
- break;
- }
-
- /* The general control opcode returns no result */
-
- goto result_not_used;
-
- case AML_CLASS_CREATE:
-
- /*
- * These opcodes allow term_arg(s) as operands and therefore
- * the operands can be method calls. The result is used.
- */
- goto result_used;
-
- case AML_CLASS_NAMED_OBJECT:
-
- if ((op->common.parent->common.aml_opcode == AML_REGION_OP) ||
- (op->common.parent->common.aml_opcode == AML_DATA_REGION_OP)
- || (op->common.parent->common.aml_opcode == AML_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_VAR_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode == AML_BUFFER_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_INT_EVAL_SUBTREE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_BANK_FIELD_OP)) {
- /*
- * These opcodes allow term_arg(s) as operands and therefore
- * the operands can be method calls. The result is used.
- */
- goto result_used;
- }
-
- goto result_not_used;
-
- default:
-
- /*
- * In all other cases. the parent will actually use the return
- * object, so keep it.
- */
- goto result_used;
- }
-
- result_used:
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Result of [%s] used by Parent [%s] Op=%p\n",
- acpi_ps_get_opcode_name(op->common.aml_opcode),
- acpi_ps_get_opcode_name(op->common.parent->common.
- aml_opcode), op));
-
- return_UINT8(TRUE);
-
- result_not_used:
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Result of [%s] not used by Parent [%s] Op=%p\n",
- acpi_ps_get_opcode_name(op->common.aml_opcode),
- acpi_ps_get_opcode_name(op->common.parent->common.
- aml_opcode), op));
-
- return_UINT8(FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_delete_result_if_not_used
- *
- * PARAMETERS: Op - Current parse Op
- * result_obj - Result of the operation
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Used after interpretation of an opcode. If there is an internal
- * result descriptor, check if the parent opcode will actually use
- * this result. If not, delete the result now so that it will
- * not become orphaned.
- *
- ******************************************************************************/
-
-void
-acpi_ds_delete_result_if_not_used(union acpi_parse_object *op,
- union acpi_operand_object *result_obj,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj);
-
- if (!op) {
- ACPI_ERROR((AE_INFO, "Null Op"));
- return_VOID;
- }
-
- if (!result_obj) {
- return_VOID;
- }
-
- if (!acpi_ds_is_result_used(op, walk_state)) {
-
- /* Must pop the result stack (obj_desc should be equal to result_obj) */
-
- status = acpi_ds_result_pop(&obj_desc, walk_state);
- if (ACPI_SUCCESS(status)) {
- acpi_ut_remove_reference(result_obj);
- }
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_resolve_operands
- *
- * PARAMETERS: walk_state - Current walk state with operands on stack
- *
- * RETURN: Status
- *
- * DESCRIPTION: Resolve all operands to their values. Used to prepare
- * arguments to a control method invocation (a call from one
- * method to another.)
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state)
-{
- u32 i;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state);
-
- /*
- * Attempt to resolve each of the valid operands
- * Method arguments are passed by reference, not by value. This means
- * that the actual objects are passed, not copies of the objects.
- */
- for (i = 0; i < walk_state->num_operands; i++) {
- status =
- acpi_ex_resolve_to_value(&walk_state->operands[i],
- walk_state);
- if (ACPI_FAILURE(status)) {
- break;
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_clear_operands
- *
- * PARAMETERS: walk_state - Current walk state with operands on stack
- *
- * RETURN: None
- *
- * DESCRIPTION: Clear all operands on the current walk state operand stack.
- *
- ******************************************************************************/
-
-void acpi_ds_clear_operands(struct acpi_walk_state *walk_state)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state);
-
- /* Remove a reference on each operand on the stack */
-
- for (i = 0; i < walk_state->num_operands; i++) {
- /*
- * Remove a reference to all operands, including both
- * "Arguments" and "Targets".
- */
- acpi_ut_remove_reference(walk_state->operands[i]);
- walk_state->operands[i] = NULL;
- }
-
- walk_state->num_operands = 0;
- return_VOID;
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_operand
- *
- * PARAMETERS: walk_state - Current walk state
- * Arg - Parse object for the argument
- * arg_index - Which argument (zero based)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a parse tree object that is an argument to an AML
- * opcode to the equivalent interpreter object. This may include
- * looking up a name or entering a new name into the internal
- * namespace.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_operand(struct acpi_walk_state *walk_state,
- union acpi_parse_object *arg, u32 arg_index)
-{
- acpi_status status = AE_OK;
- char *name_string;
- u32 name_length;
- union acpi_operand_object *obj_desc;
- union acpi_parse_object *parent_op;
- u16 opcode;
- acpi_interpreter_mode interpreter_mode;
- const struct acpi_opcode_info *op_info;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg);
-
- /* A valid name must be looked up in the namespace */
-
- if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
- (arg->common.value.string) &&
- !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Getting a name: Arg=%p\n",
- arg));
-
- /* Get the entire name string from the AML stream */
-
- status =
- acpi_ex_get_name_string(ACPI_TYPE_ANY,
- arg->common.value.buffer,
- &name_string, &name_length);
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* All prefixes have been handled, and the name is in name_string */
-
- /*
- * Special handling for buffer_field declarations. This is a deferred
- * opcode that unfortunately defines the field name as the last
- * parameter instead of the first. We get here when we are performing
- * the deferred execution, so the actual name of the field is already
- * in the namespace. We don't want to attempt to look it up again
- * because we may be executing in a different scope than where the
- * actual opcode exists.
- */
- if ((walk_state->deferred_node) &&
- (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD)
- && (arg_index ==
- (u32) ((walk_state->opcode ==
- AML_CREATE_FIELD_OP) ? 3 : 2))) {
- obj_desc =
- ACPI_CAST_PTR(union acpi_operand_object,
- walk_state->deferred_node);
- status = AE_OK;
- } else { /* All other opcodes */
-
- /*
- * Differentiate between a namespace "create" operation
- * versus a "lookup" operation (IMODE_LOAD_PASS2 vs.
- * IMODE_EXECUTE) in order to support the creation of
- * namespace objects during the execution of control methods.
- */
- parent_op = arg->common.parent;
- op_info =
- acpi_ps_get_opcode_info(parent_op->common.
- aml_opcode);
- if ((op_info->flags & AML_NSNODE)
- && (parent_op->common.aml_opcode !=
- AML_INT_METHODCALL_OP)
- && (parent_op->common.aml_opcode != AML_REGION_OP)
- && (parent_op->common.aml_opcode !=
- AML_INT_NAMEPATH_OP)) {
-
- /* Enter name into namespace if not found */
-
- interpreter_mode = ACPI_IMODE_LOAD_PASS2;
- } else {
- /* Return a failure if name not found */
-
- interpreter_mode = ACPI_IMODE_EXECUTE;
- }
-
- status =
- acpi_ns_lookup(walk_state->scope_info, name_string,
- ACPI_TYPE_ANY, interpreter_mode,
- ACPI_NS_SEARCH_PARENT |
- ACPI_NS_DONT_OPEN_SCOPE, walk_state,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_namespace_node,
- &obj_desc));
- /*
- * The only case where we pass through (ignore) a NOT_FOUND
- * error is for the cond_ref_of opcode.
- */
- if (status == AE_NOT_FOUND) {
- if (parent_op->common.aml_opcode ==
- AML_COND_REF_OF_OP) {
- /*
- * For the Conditional Reference op, it's OK if
- * the name is not found; We just need a way to
- * indicate this to the interpreter, set the
- * object to the root
- */
- obj_desc = ACPI_CAST_PTR(union
- acpi_operand_object,
- acpi_gbl_root_node);
- status = AE_OK;
- } else {
- /*
- * We just plain didn't find it -- which is a
- * very serious error at this point
- */
- status = AE_AML_NAME_NOT_FOUND;
- }
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(name_string, status);
- }
- }
-
- /* Free the namestring created above */
-
- ACPI_FREE(name_string);
-
- /* Check status from the lookup */
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Put the resulting object onto the current object stack */
-
- status = acpi_ds_obj_stack_push(obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
- (obj_desc, walk_state));
- } else {
- /* Check for null name case */
-
- if ((arg->common.aml_opcode == AML_INT_NAMEPATH_OP) &&
- !(arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- /*
- * If the name is null, this means that this is an
- * optional result parameter that was not specified
- * in the original ASL. Create a Zero Constant for a
- * placeholder. (Store to a constant is a Noop.)
- */
- opcode = AML_ZERO_OP; /* Has no arguments! */
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Null namepath: Arg=%p\n", arg));
- } else {
- opcode = arg->common.aml_opcode;
- }
-
- /* Get the object type of the argument */
-
- op_info = acpi_ps_get_opcode_info(opcode);
- if (op_info->object_type == ACPI_TYPE_INVALID) {
- return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
- }
-
- if ((op_info->flags & AML_HAS_RETVAL)
- || (arg->common.flags & ACPI_PARSEOP_IN_STACK)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Argument previously created, already stacked\n"));
-
- ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
- (walk_state->
- operands[walk_state->num_operands -
- 1], walk_state));
-
- /*
- * Use value that was already previously returned
- * by the evaluation of this argument
- */
- status = acpi_ds_result_pop(&obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- /*
- * Only error is underflow, and this indicates
- * a missing or null operand!
- */
- ACPI_EXCEPTION((AE_INFO, status,
- "Missing or null operand"));
- return_ACPI_STATUS(status);
- }
- } else {
- /* Create an ACPI_INTERNAL_OBJECT for the argument */
-
- obj_desc =
- acpi_ut_create_internal_object(op_info->
- object_type);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize the new object */
-
- status =
- acpi_ds_init_object_from_op(walk_state, arg, opcode,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(status);
- }
- }
-
- /* Put the operand object on the object stack */
-
- status = acpi_ds_obj_stack_push(obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUGGER_EXEC(acpi_db_display_argument_object
- (obj_desc, walk_state));
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_operands
- *
- * PARAMETERS: walk_state - Current state
- * first_arg - First argument of a parser argument tree
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an operator's arguments from a parse tree format to
- * namespace objects and place those argument object on the object
- * stack in preparation for evaluation by the interpreter.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_create_operands(struct acpi_walk_state *walk_state,
- union acpi_parse_object *first_arg)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *arg;
- union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS];
- u32 arg_count = 0;
- u32 index = walk_state->num_operands;
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg);
-
- /* Get all arguments in the list */
-
- arg = first_arg;
- while (arg) {
- if (index >= ACPI_OBJ_NUM_OPERANDS) {
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- arguments[index] = arg;
- walk_state->operands[index] = NULL;
-
- /* Move on to next argument, if any */
-
- arg = arg->common.next;
- arg_count++;
- index++;
- }
-
- index--;
-
- /* It is the appropriate order to get objects from the Result stack */
-
- for (i = 0; i < arg_count; i++) {
- arg = arguments[index];
-
- /* Force the filling of the operand stack in inverse order */
-
- walk_state->operand_index = (u8) index;
-
- status = acpi_ds_create_operand(walk_state, arg, index);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- index--;
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Arg #%d (%p) done, Arg1=%p\n", index, arg,
- first_arg));
- }
-
- return_ACPI_STATUS(status);
-
- cleanup:
- /*
- * We must undo everything done above; meaning that we must
- * pop everything off of the operand stack and delete those
- * objects
- */
- acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state);
-
- ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %d", index));
- return_ACPI_STATUS(status);
-}
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_ds_evaluate_name_path
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk,
- * the opcode of current operation should be
- * AML_INT_NAMEPATH_OP
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate the -name_path- parse tree object to the equivalent
- * interpreter object, convert it to value, if needed, duplicate
- * it, if needed, and push it onto the current result stack.
- *
- ****************************************************************************/
-
-acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *op = walk_state->op;
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *new_obj_desc;
- u8 type;
-
- ACPI_FUNCTION_TRACE_PTR(ds_evaluate_name_path, walk_state);
-
- if (!op->common.parent) {
-
- /* This happens after certain exception processing */
-
- goto exit;
- }
-
- if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
- (op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP) ||
- (op->common.parent->common.aml_opcode == AML_REF_OF_OP)) {
-
- /* TBD: Should we specify this feature as a bit of op_info->Flags of these opcodes? */
-
- goto exit;
- }
-
- status = acpi_ds_create_operand(walk_state, op, 0);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- if (op->common.flags & ACPI_PARSEOP_TARGET) {
- new_obj_desc = *operand;
- goto push_result;
- }
-
- type = ACPI_GET_OBJECT_TYPE(*operand);
-
- status = acpi_ex_resolve_to_value(operand, walk_state);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- if (type == ACPI_TYPE_INTEGER) {
-
- /* It was incremented by acpi_ex_resolve_to_value */
-
- acpi_ut_remove_reference(*operand);
-
- status =
- acpi_ut_copy_iobject_to_iobject(*operand, &new_obj_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
- } else {
- /*
- * The object either was anew created or is
- * a Namespace node - don't decrement it.
- */
- new_obj_desc = *operand;
- }
-
- /* Cleanup for name-path operand */
-
- status = acpi_ds_obj_stack_pop(1, walk_state);
- if (ACPI_FAILURE(status)) {
- walk_state->result_obj = new_obj_desc;
- goto exit;
- }
-
- push_result:
-
- walk_state->result_obj = new_obj_desc;
-
- status = acpi_ds_result_push(walk_state->result_obj, walk_state);
- if (ACPI_SUCCESS(status)) {
-
- /* Force to take it from stack */
-
- op->common.flags |= ACPI_PARSEOP_IN_STACK;
- }
-
- exit:
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dswexec - Dispatcher method execution callbacks;
- * dispatch to interpreter.
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dswexec")
-
-/*
- * Dispatch table for opcode classes
- */
-static ACPI_EXECUTE_OP acpi_gbl_op_type_dispatch[] = {
- acpi_ex_opcode_0A_0T_1R,
- acpi_ex_opcode_1A_0T_0R,
- acpi_ex_opcode_1A_0T_1R,
- acpi_ex_opcode_1A_1T_0R,
- acpi_ex_opcode_1A_1T_1R,
- acpi_ex_opcode_2A_0T_0R,
- acpi_ex_opcode_2A_0T_1R,
- acpi_ex_opcode_2A_1T_1R,
- acpi_ex_opcode_2A_2T_1R,
- acpi_ex_opcode_3A_0T_0R,
- acpi_ex_opcode_3A_1T_1R,
- acpi_ex_opcode_6A_0T_1R
-};
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_ds_get_predicate_value
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- * result_obj - if non-zero, pop result from result stack
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get the result of a predicate evaluation
- *
- ****************************************************************************/
-
-acpi_status
-acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
- union acpi_operand_object *result_obj)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *local_obj_desc = NULL;
-
- ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state);
-
- walk_state->control_state->common.state = 0;
-
- if (result_obj) {
- status = acpi_ds_result_pop(&obj_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not get result from predicate evaluation"));
-
- return_ACPI_STATUS(status);
- }
- } else {
- status = acpi_ds_create_operand(walk_state, walk_state->op, 0);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status =
- acpi_ex_resolve_to_value(&walk_state->operands[0],
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- obj_desc = walk_state->operands[0];
- }
-
- if (!obj_desc) {
- ACPI_ERROR((AE_INFO,
- "No predicate ObjDesc=%p State=%p",
- obj_desc, walk_state));
-
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- /*
- * Result of predicate evaluation must be an Integer
- * object. Implicitly convert the argument if necessary.
- */
- status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc, 16);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) {
- ACPI_ERROR((AE_INFO,
- "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X",
- obj_desc, walk_state,
- ACPI_GET_OBJECT_TYPE(obj_desc)));
-
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
-
- /* Truncate the predicate to 32-bits if necessary */
-
- acpi_ex_truncate_for32bit_table(local_obj_desc);
-
- /*
- * Save the result of the predicate evaluation on
- * the control stack
- */
- if (local_obj_desc->integer.value) {
- walk_state->control_state->common.value = TRUE;
- } else {
- /*
- * Predicate is FALSE, we will just toss the
- * rest of the package
- */
- walk_state->control_state->common.value = FALSE;
- status = AE_CTRL_FALSE;
- }
-
- /* Predicate can be used for an implicit return value */
-
- (void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE);
-
- cleanup:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
- walk_state->control_state->common.value,
- walk_state->op));
-
- /* Break to debugger to display result */
-
- ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
- (local_obj_desc, walk_state));
-
- /*
- * Delete the predicate result object (we know that
- * we don't need it anymore)
- */
- if (local_obj_desc != obj_desc) {
- acpi_ut_remove_reference(local_obj_desc);
- }
- acpi_ut_remove_reference(obj_desc);
-
- walk_state->control_state->common.state = ACPI_CONTROL_NORMAL;
- return_ACPI_STATUS(status);
-}
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_ds_exec_begin_op
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- * out_op - Where to return op if a new one is created
- *
- * RETURN: Status
- *
- * DESCRIPTION: Descending callback used during the execution of control
- * methods. This is where most operators and operands are
- * dispatched to the interpreter.
- *
- ****************************************************************************/
-
-acpi_status
-acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object **out_op)
-{
- union acpi_parse_object *op;
- acpi_status status = AE_OK;
- u32 opcode_class;
-
- ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state);
-
- op = walk_state->op;
- if (!op) {
- status = acpi_ds_load2_begin_op(walk_state, out_op);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- op = *out_op;
- walk_state->op = op;
- walk_state->opcode = op->common.aml_opcode;
- walk_state->op_info =
- acpi_ps_get_opcode_info(op->common.aml_opcode);
-
- if (acpi_ns_opens_scope(walk_state->op_info->object_type)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "(%s) Popping scope for Op %p\n",
- acpi_ut_get_type_name(walk_state->
- op_info->
- object_type),
- op));
-
- status = acpi_ds_scope_stack_pop(walk_state);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
- }
- }
-
- if (op == walk_state->origin) {
- if (out_op) {
- *out_op = op;
- }
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * If the previous opcode was a conditional, this opcode
- * must be the beginning of the associated predicate.
- * Save this knowledge in the current scope descriptor
- */
- if ((walk_state->control_state) &&
- (walk_state->control_state->common.state ==
- ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Exec predicate Op=%p State=%p\n", op,
- walk_state));
-
- walk_state->control_state->common.state =
- ACPI_CONTROL_PREDICATE_EXECUTING;
-
- /* Save start of predicate */
-
- walk_state->control_state->control.predicate_op = op;
- }
-
- opcode_class = walk_state->op_info->class;
-
- /* We want to send namepaths to the load code */
-
- if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
- opcode_class = AML_CLASS_NAMED_OBJECT;
- }
-
- /*
- * Handle the opcode based upon the opcode type
- */
- switch (opcode_class) {
- case AML_CLASS_CONTROL:
-
- status = acpi_ds_exec_begin_control_op(walk_state, op);
- break;
-
- case AML_CLASS_NAMED_OBJECT:
-
- if (walk_state->walk_type & ACPI_WALK_METHOD) {
- /*
- * Found a named object declaration during method execution;
- * we must enter this object into the namespace. The created
- * object is temporary and will be deleted upon completion of
- * the execution of this method.
- */
- status = acpi_ds_load2_begin_op(walk_state, NULL);
- }
-
- break;
-
- case AML_CLASS_EXECUTE:
- case AML_CLASS_CREATE:
-
- break;
-
- default:
- break;
- }
-
- /* Nothing to do here during method execution */
-
- return_ACPI_STATUS(status);
-
- error_exit:
- status = acpi_ds_method_error(status, walk_state);
- return_ACPI_STATUS(status);
-}
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_ds_exec_end_op
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- *
- * RETURN: Status
- *
- * DESCRIPTION: Ascending callback used during the execution of control
- * methods. The only thing we really need to do here is to
- * notice the beginning of IF, ELSE, and WHILE blocks.
- *
- ****************************************************************************/
-
-acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
-{
- union acpi_parse_object *op;
- acpi_status status = AE_OK;
- u32 op_type;
- u32 op_class;
- union acpi_parse_object *next_op;
- union acpi_parse_object *first_arg;
-
- ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state);
-
- op = walk_state->op;
- op_type = walk_state->op_info->type;
- op_class = walk_state->op_info->class;
-
- if (op_class == AML_CLASS_UNKNOWN) {
- ACPI_ERROR((AE_INFO, "Unknown opcode %X",
- op->common.aml_opcode));
- return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
- }
-
- first_arg = op->common.value.arg;
-
- /* Init the walk state */
-
- walk_state->num_operands = 0;
- walk_state->operand_index = 0;
- walk_state->return_desc = NULL;
- walk_state->result_obj = NULL;
-
- /* Call debugger for single step support (DEBUG build only) */
-
- ACPI_DEBUGGER_EXEC(status =
- acpi_db_single_step(walk_state, op, op_class));
- ACPI_DEBUGGER_EXEC(if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);}
- ) ;
-
- /* Decode the Opcode Class */
-
- switch (op_class) {
- case AML_CLASS_ARGUMENT: /* Constants, literals, etc. */
-
- if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
- status = acpi_ds_evaluate_name_path(walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
- }
- break;
-
- case AML_CLASS_EXECUTE: /* Most operators with arguments */
-
- /* Build resolved operand stack */
-
- status = acpi_ds_create_operands(walk_state, first_arg);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * All opcodes require operand resolution, with the only exceptions
- * being the object_type and size_of operators.
- */
- if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) {
-
- /* Resolve all operands */
-
- status = acpi_ex_resolve_operands(walk_state->opcode,
- &(walk_state->
- operands
- [walk_state->
- num_operands - 1]),
- walk_state);
- }
-
- if (ACPI_SUCCESS(status)) {
- /*
- * Dispatch the request to the appropriate interpreter handler
- * routine. There is one routine per opcode "type" based upon the
- * number of opcode arguments and return type.
- */
- status =
- acpi_gbl_op_type_dispatch[op_type] (walk_state);
- } else {
- /*
- * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the
- * Local is uninitialized.
- */
- if ((status == AE_AML_UNINITIALIZED_LOCAL) &&
- (walk_state->opcode == AML_STORE_OP) &&
- (walk_state->operands[0]->common.type ==
- ACPI_TYPE_LOCAL_REFERENCE)
- && (walk_state->operands[1]->common.type ==
- ACPI_TYPE_LOCAL_REFERENCE)
- && (walk_state->operands[0]->reference.class ==
- walk_state->operands[1]->reference.class)
- && (walk_state->operands[0]->reference.value ==
- walk_state->operands[1]->reference.value)) {
- status = AE_OK;
- } else {
- ACPI_EXCEPTION((AE_INFO, status,
- "While resolving operands for [%s]",
- acpi_ps_get_opcode_name
- (walk_state->opcode)));
- }
- }
-
- /* Always delete the argument objects and clear the operand stack */
-
- acpi_ds_clear_operands(walk_state);
-
- /*
- * If a result object was returned from above, push it on the
- * current result stack
- */
- if (ACPI_SUCCESS(status) && walk_state->result_obj) {
- status =
- acpi_ds_result_push(walk_state->result_obj,
- walk_state);
- }
- break;
-
- default:
-
- switch (op_type) {
- case AML_TYPE_CONTROL: /* Type 1 opcode, IF/ELSE/WHILE/NOOP */
-
- /* 1 Operand, 0 external_result, 0 internal_result */
-
- status = acpi_ds_exec_end_control_op(walk_state, op);
-
- break;
-
- case AML_TYPE_METHOD_CALL:
-
- /*
- * If the method is referenced from within a package
- * declaration, it is not a invocation of the method, just
- * a reference to it.
- */
- if ((op->asl.parent) &&
- ((op->asl.parent->asl.aml_opcode == AML_PACKAGE_OP)
- || (op->asl.parent->asl.aml_opcode ==
- AML_VAR_PACKAGE_OP))) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Method Reference in a Package, Op=%p\n",
- op));
-
- op->common.node =
- (struct acpi_namespace_node *)op->asl.value.
- arg->asl.node;
- acpi_ut_add_reference(op->asl.value.arg->asl.
- node->object);
- return_ACPI_STATUS(AE_OK);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Method invocation, Op=%p\n", op));
-
- /*
- * (AML_METHODCALL) Op->Asl.Value.Arg->Asl.Node contains
- * the method Node pointer
- */
- /* next_op points to the op that holds the method name */
-
- next_op = first_arg;
-
- /* next_op points to first argument op */
-
- next_op = next_op->common.next;
-
- /*
- * Get the method's arguments and put them on the operand stack
- */
- status = acpi_ds_create_operands(walk_state, next_op);
- if (ACPI_FAILURE(status)) {
- break;
- }
-
- /*
- * Since the operands will be passed to another control method,
- * we must resolve all local references here (Local variables,
- * arguments to *this* method, etc.)
- */
- status = acpi_ds_resolve_operands(walk_state);
- if (ACPI_FAILURE(status)) {
-
- /* On error, clear all resolved operands */
-
- acpi_ds_clear_operands(walk_state);
- break;
- }
-
- /*
- * Tell the walk loop to preempt this running method and
- * execute the new method
- */
- status = AE_CTRL_TRANSFER;
-
- /*
- * Return now; we don't want to disturb anything,
- * especially the operand count!
- */
- return_ACPI_STATUS(status);
-
- case AML_TYPE_CREATE_FIELD:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Executing CreateField Buffer/Index Op=%p\n",
- op));
-
- status = acpi_ds_load2_end_op(walk_state);
- if (ACPI_FAILURE(status)) {
- break;
- }
-
- status =
- acpi_ds_eval_buffer_field_operands(walk_state, op);
- break;
-
- case AML_TYPE_CREATE_OBJECT:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Executing CreateObject (Buffer/Package) Op=%p\n",
- op));
-
- switch (op->common.parent->common.aml_opcode) {
- case AML_NAME_OP:
-
- /*
- * Put the Node on the object stack (Contains the ACPI Name
- * of this object)
- */
- walk_state->operands[0] =
- (void *)op->common.parent->common.node;
- walk_state->num_operands = 1;
-
- status = acpi_ds_create_node(walk_state,
- op->common.parent->
- common.node,
- op->common.parent);
- if (ACPI_FAILURE(status)) {
- break;
- }
-
- /* Fall through */
- /*lint -fallthrough */
-
- case AML_INT_EVAL_SUBTREE_OP:
-
- status =
- acpi_ds_eval_data_object_operands
- (walk_state, op,
- acpi_ns_get_attached_object(op->common.
- parent->common.
- node));
- break;
-
- default:
-
- status =
- acpi_ds_eval_data_object_operands
- (walk_state, op, NULL);
- break;
- }
-
- /*
- * If a result object was returned from above, push it on the
- * current result stack
- */
- if (walk_state->result_obj) {
- status =
- acpi_ds_result_push(walk_state->result_obj,
- walk_state);
- }
- break;
-
- case AML_TYPE_NAMED_FIELD:
- case AML_TYPE_NAMED_COMPLEX:
- case AML_TYPE_NAMED_SIMPLE:
- case AML_TYPE_NAMED_NO_OBJ:
-
- status = acpi_ds_load2_end_op(walk_state);
- if (ACPI_FAILURE(status)) {
- break;
- }
-
- if (op->common.aml_opcode == AML_REGION_OP) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Executing OpRegion Address/Length Op=%p\n",
- op));
-
- status =
- acpi_ds_eval_region_operands(walk_state,
- op);
- if (ACPI_FAILURE(status)) {
- break;
- }
- } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Executing DataTableRegion Strings Op=%p\n",
- op));
-
- status =
- acpi_ds_eval_table_region_operands
- (walk_state, op);
- if (ACPI_FAILURE(status)) {
- break;
- }
- } else if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Executing BankField Op=%p\n",
- op));
-
- status =
- acpi_ds_eval_bank_field_operands(walk_state,
- op);
- if (ACPI_FAILURE(status)) {
- break;
- }
- }
- break;
-
- case AML_TYPE_UNDEFINED:
-
- ACPI_ERROR((AE_INFO,
- "Undefined opcode type Op=%p", op));
- return_ACPI_STATUS(AE_NOT_IMPLEMENTED);
-
- case AML_TYPE_BOGUS:
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Internal opcode=%X type Op=%p\n",
- walk_state->opcode, op));
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unimplemented opcode, class=%X type=%X Opcode=%X Op=%p",
- op_class, op_type, op->common.aml_opcode,
- op));
-
- status = AE_NOT_IMPLEMENTED;
- break;
- }
- }
-
- /*
- * ACPI 2.0 support for 64-bit integers: Truncate numeric
- * result value if we are executing from a 32-bit ACPI table
- */
- acpi_ex_truncate_for32bit_table(walk_state->result_obj);
-
- /*
- * Check if we just completed the evaluation of a
- * conditional predicate
- */
- if ((ACPI_SUCCESS(status)) &&
- (walk_state->control_state) &&
- (walk_state->control_state->common.state ==
- ACPI_CONTROL_PREDICATE_EXECUTING) &&
- (walk_state->control_state->control.predicate_op == op)) {
- status =
- acpi_ds_get_predicate_value(walk_state,
- walk_state->result_obj);
- walk_state->result_obj = NULL;
- }
-
- cleanup:
-
- if (walk_state->result_obj) {
-
- /* Break to debugger to display result */
-
- ACPI_DEBUGGER_EXEC(acpi_db_display_result_object
- (walk_state->result_obj, walk_state));
-
- /*
- * Delete the result op if and only if:
- * Parent will not use the result -- such as any
- * non-nested type2 op in a method (parent will be method)
- */
- acpi_ds_delete_result_if_not_used(op, walk_state->result_obj,
- walk_state);
- }
-#ifdef _UNDER_DEVELOPMENT
-
- if (walk_state->parser_state.aml == walk_state->parser_state.aml_end) {
- acpi_db_method_end(walk_state);
- }
-#endif
-
- /* Invoke exception handler on error */
-
- if (ACPI_FAILURE(status)) {
- status = acpi_ds_method_error(status, walk_state);
- }
-
- /* Always clear the object stack */
-
- walk_state->num_operands = 0;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dswload - Dispatcher namespace load callbacks
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-
-#ifdef ACPI_ASL_COMPILER
-#include <acpi/acdisasm.h>
-#endif
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dswload")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_init_callbacks
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- * pass_number - 1, 2, or 3
- *
- * RETURN: Status
- *
- * DESCRIPTION: Init walk state callbacks
- *
- ******************************************************************************/
-acpi_status
-acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number)
-{
-
- switch (pass_number) {
- case 1:
- walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
- ACPI_PARSE_DELETE_TREE;
- walk_state->descending_callback = acpi_ds_load1_begin_op;
- walk_state->ascending_callback = acpi_ds_load1_end_op;
- break;
-
- case 2:
- walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 |
- ACPI_PARSE_DELETE_TREE;
- walk_state->descending_callback = acpi_ds_load2_begin_op;
- walk_state->ascending_callback = acpi_ds_load2_end_op;
- break;
-
- case 3:
-#ifndef ACPI_NO_METHOD_EXECUTION
- walk_state->parse_flags |= ACPI_PARSE_EXECUTE |
- ACPI_PARSE_DELETE_TREE;
- walk_state->descending_callback = acpi_ds_exec_begin_op;
- walk_state->ascending_callback = acpi_ds_exec_end_op;
-#endif
- break;
-
- default:
- return (AE_BAD_PARAMETER);
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_load1_begin_op
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- * out_op - Where to return op if a new one is created
- *
- * RETURN: Status
- *
- * DESCRIPTION: Descending callback used during the loading of ACPI tables.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
- union acpi_parse_object ** out_op)
-{
- union acpi_parse_object *op;
- struct acpi_namespace_node *node;
- acpi_status status;
- acpi_object_type object_type;
- char *path;
- u32 flags;
-
- ACPI_FUNCTION_TRACE(ds_load1_begin_op);
-
- op = walk_state->op;
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
- walk_state));
-
- /* We are only interested in opcodes that have an associated name */
-
- if (op) {
- if (!(walk_state->op_info->flags & AML_NAMED)) {
- *out_op = op;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Check if this object has already been installed in the namespace */
-
- if (op->common.node) {
- *out_op = op;
- return_ACPI_STATUS(AE_OK);
- }
- }
-
- path = acpi_ps_get_next_namestring(&walk_state->parser_state);
-
- /* Map the raw opcode into an internal object type */
-
- object_type = walk_state->op_info->object_type;
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "State=%p Op=%p [%s]\n", walk_state, op,
- acpi_ut_get_type_name(object_type)));
-
- switch (walk_state->opcode) {
- case AML_SCOPE_OP:
-
- /*
- * The target name of the Scope() operator must exist at this point so
- * that we can actually open the scope to enter new names underneath it.
- * Allow search-to-root for single namesegs.
- */
- status =
- acpi_ns_lookup(walk_state->scope_info, path, object_type,
- ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
- walk_state, &(node));
-#ifdef ACPI_ASL_COMPILER
- if (status == AE_NOT_FOUND) {
- /*
- * Table disassembly:
- * Target of Scope() not found. Generate an External for it, and
- * insert the name into the namespace.
- */
- acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0);
- status =
- acpi_ns_lookup(walk_state->scope_info, path,
- object_type, ACPI_IMODE_LOAD_PASS1,
- ACPI_NS_SEARCH_PARENT, walk_state,
- &node);
- }
-#endif
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(path, status);
- return_ACPI_STATUS(status);
- }
-
- /*
- * Check to make sure that the target is
- * one of the opcodes that actually opens a scope
- */
- switch (node->type) {
- case ACPI_TYPE_ANY:
- case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
-
- /* These are acceptable types */
- break;
-
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /*
- * These types we will allow, but we will change the type. This
- * enables some existing code of the form:
- *
- * Name (DEB, 0)
- * Scope (DEB) { ... }
- *
- * Note: silently change the type here. On the second pass, we will report
- * a warning
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
- path,
- acpi_ut_get_type_name(node->type)));
-
- node->type = ACPI_TYPE_ANY;
- walk_state->scope_info->common.value = ACPI_TYPE_ANY;
- break;
-
- default:
-
- /* All other types are an error */
-
- ACPI_ERROR((AE_INFO,
- "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)",
- acpi_ut_get_type_name(node->type), path));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- break;
-
- default:
- /*
- * For all other named opcodes, we will enter the name into
- * the namespace.
- *
- * Setup the search flags.
- * Since we are entering a name into the namespace, we do not want to
- * enable the search-to-root upsearch.
- *
- * There are only two conditions where it is acceptable that the name
- * already exists:
- * 1) the Scope() operator can reopen a scoping object that was
- * previously defined (Scope, Method, Device, etc.)
- * 2) Whenever we are parsing a deferred opcode (op_region, Buffer,
- * buffer_field, or Package), the name of the object is already
- * in the namespace.
- */
- if (walk_state->deferred_node) {
-
- /* This name is already in the namespace, get the node */
-
- node = walk_state->deferred_node;
- status = AE_OK;
- break;
- }
-
- /*
- * If we are executing a method, do not create any namespace objects
- * during the load phase, only during execution.
- */
- if (walk_state->method_node) {
- node = NULL;
- status = AE_OK;
- break;
- }
-
- flags = ACPI_NS_NO_UPSEARCH;
- if ((walk_state->opcode != AML_SCOPE_OP) &&
- (!(walk_state->parse_flags & ACPI_PARSE_DEFERRED_OP))) {
- flags |= ACPI_NS_ERROR_IF_FOUND;
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "[%s] Cannot already exist\n",
- acpi_ut_get_type_name(object_type)));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "[%s] Both Find or Create allowed\n",
- acpi_ut_get_type_name(object_type)));
- }
-
- /*
- * Enter the named type into the internal namespace. We enter the name
- * as we go downward in the parse tree. Any necessary subobjects that
- * involve arguments to the opcode must be created as we go back up the
- * parse tree later.
- */
- status =
- acpi_ns_lookup(walk_state->scope_info, path, object_type,
- ACPI_IMODE_LOAD_PASS1, flags, walk_state,
- &node);
- if (ACPI_FAILURE(status)) {
- if (status == AE_ALREADY_EXISTS) {
-
- /* The name already exists in this scope */
-
- if (node->flags & ANOBJ_IS_EXTERNAL) {
- /*
- * Allow one create on an object or segment that was
- * previously declared External
- */
- node->flags &= ~ANOBJ_IS_EXTERNAL;
- node->type = (u8) object_type;
-
- /* Just retyped a node, probably will need to open a scope */
-
- if (acpi_ns_opens_scope(object_type)) {
- status =
- acpi_ds_scope_stack_push
- (node, object_type,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS
- (status);
- }
- }
-
- status = AE_OK;
- }
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(path, status);
- return_ACPI_STATUS(status);
- }
- }
- break;
- }
-
- /* Common exit */
-
- if (!op) {
-
- /* Create a new op */
-
- op = acpi_ps_alloc_op(walk_state->opcode);
- if (!op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- }
-
- /* Initialize the op */
-
-#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
- op->named.path = ACPI_CAST_PTR(u8, path);
-#endif
-
- if (node) {
- /*
- * Put the Node in the "op" object that the parser uses, so we
- * can get it again quickly when this scope is closed
- */
- op->common.node = node;
- op->named.name = node->name.integer;
- }
-
- acpi_ps_append_arg(acpi_ps_get_parent_scope(&walk_state->parser_state),
- op);
- *out_op = op;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_load1_end_op
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- *
- * RETURN: Status
- *
- * DESCRIPTION: Ascending callback used during the loading of the namespace,
- * both control methods and everything else.
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
-{
- union acpi_parse_object *op;
- acpi_object_type object_type;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ds_load1_end_op);
-
- op = walk_state->op;
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
- walk_state));
-
- /* We are only interested in opcodes that have an associated name */
-
- if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Get the object type to determine if we should pop the scope */
-
- object_type = walk_state->op_info->object_type;
-
-#ifndef ACPI_NO_METHOD_EXECUTION
- if (walk_state->op_info->flags & AML_FIELD) {
- /*
- * If we are executing a method, do not create any namespace objects
- * during the load phase, only during execution.
- */
- if (!walk_state->method_node) {
- if (walk_state->opcode == AML_FIELD_OP ||
- walk_state->opcode == AML_BANK_FIELD_OP ||
- walk_state->opcode == AML_INDEX_FIELD_OP) {
- status =
- acpi_ds_init_field_objects(op, walk_state);
- }
- }
- return_ACPI_STATUS(status);
- }
-
- /*
- * If we are executing a method, do not create any namespace objects
- * during the load phase, only during execution.
- */
- if (!walk_state->method_node) {
- if (op->common.aml_opcode == AML_REGION_OP) {
- status =
- acpi_ex_create_region(op->named.data,
- op->named.length,
- (acpi_adr_space_type) ((op->
- common.
- value.
- arg)->
- common.
- value.
- integer),
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
- status =
- acpi_ex_create_region(op->named.data,
- op->named.length,
- REGION_DATA_TABLE,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- }
-#endif
-
- if (op->common.aml_opcode == AML_NAME_OP) {
-
- /* For Name opcode, get the object type from the argument */
-
- if (op->common.value.arg) {
- object_type = (acpi_ps_get_opcode_info((op->common.
- value.arg)->
- common.
- aml_opcode))->
- object_type;
-
- /* Set node type if we have a namespace node */
-
- if (op->common.node) {
- op->common.node->type = (u8) object_type;
- }
- }
- }
-
- /*
- * If we are executing a method, do not create any namespace objects
- * during the load phase, only during execution.
- */
- if (!walk_state->method_node) {
- if (op->common.aml_opcode == AML_METHOD_OP) {
- /*
- * method_op pkg_length name_string method_flags term_list
- *
- * Note: We must create the method node/object pair as soon as we
- * see the method declaration. This allows later pass1 parsing
- * of invocations of the method (need to know the number of
- * arguments.)
- */
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
- walk_state, op, op->named.node));
-
- if (!acpi_ns_get_attached_object(op->named.node)) {
- walk_state->operands[0] =
- ACPI_CAST_PTR(void, op->named.node);
- walk_state->num_operands = 1;
-
- status =
- acpi_ds_create_operands(walk_state,
- op->common.value.
- arg);
- if (ACPI_SUCCESS(status)) {
- status =
- acpi_ex_create_method(op->named.
- data,
- op->named.
- length,
- walk_state);
- }
-
- walk_state->operands[0] = NULL;
- walk_state->num_operands = 0;
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- }
- }
-
- /* Pop the scope stack (only if loading a table) */
-
- if (!walk_state->method_node && acpi_ns_opens_scope(object_type)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "(%s): Popping scope for Op %p\n",
- acpi_ut_get_type_name(object_type), op));
-
- status = acpi_ds_scope_stack_pop(walk_state);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_load2_begin_op
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- * out_op - Wher to return op if a new one is created
- *
- * RETURN: Status
- *
- * DESCRIPTION: Descending callback used during the loading of ACPI tables.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object **out_op)
-{
- union acpi_parse_object *op;
- struct acpi_namespace_node *node;
- acpi_status status;
- acpi_object_type object_type;
- char *buffer_ptr;
- u32 flags;
-
- ACPI_FUNCTION_TRACE(ds_load2_begin_op);
-
- op = walk_state->op;
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
- walk_state));
-
- if (op) {
- if ((walk_state->control_state) &&
- (walk_state->control_state->common.state ==
- ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
-
- /* We are executing a while loop outside of a method */
-
- status = acpi_ds_exec_begin_op(walk_state, out_op);
- return_ACPI_STATUS(status);
- }
-
- /* We only care about Namespace opcodes here */
-
- if ((!(walk_state->op_info->flags & AML_NSOPCODE) &&
- (walk_state->opcode != AML_INT_NAMEPATH_OP)) ||
- (!(walk_state->op_info->flags & AML_NAMED))) {
-#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
- if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
- (walk_state->op_info->class == AML_CLASS_CONTROL)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Begin/EXEC: %s (fl %8.8X)\n",
- walk_state->op_info->name,
- walk_state->op_info->flags));
-
- /* Executing a type1 or type2 opcode outside of a method */
-
- status =
- acpi_ds_exec_begin_op(walk_state, out_op);
- return_ACPI_STATUS(status);
- }
-#endif
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Get the name we are going to enter or lookup in the namespace */
-
- if (walk_state->opcode == AML_INT_NAMEPATH_OP) {
-
- /* For Namepath op, get the path string */
-
- buffer_ptr = op->common.value.string;
- if (!buffer_ptr) {
-
- /* No name, just exit */
-
- return_ACPI_STATUS(AE_OK);
- }
- } else {
- /* Get name from the op */
-
- buffer_ptr = ACPI_CAST_PTR(char, &op->named.name);
- }
- } else {
- /* Get the namestring from the raw AML */
-
- buffer_ptr =
- acpi_ps_get_next_namestring(&walk_state->parser_state);
- }
-
- /* Map the opcode into an internal object type */
-
- object_type = walk_state->op_info->object_type;
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "State=%p Op=%p Type=%X\n", walk_state, op,
- object_type));
-
- switch (walk_state->opcode) {
- case AML_FIELD_OP:
- case AML_BANK_FIELD_OP:
- case AML_INDEX_FIELD_OP:
-
- node = NULL;
- status = AE_OK;
- break;
-
- case AML_INT_NAMEPATH_OP:
- /*
- * The name_path is an object reference to an existing object.
- * Don't enter the name into the namespace, but look it up
- * for use later.
- */
- status =
- acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
- object_type, ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT, walk_state, &(node));
- break;
-
- case AML_SCOPE_OP:
- /*
- * The Path is an object reference to an existing object.
- * Don't enter the name into the namespace, but look it up
- * for use later.
- */
- status =
- acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
- object_type, ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT, walk_state, &(node));
- if (ACPI_FAILURE(status)) {
-#ifdef ACPI_ASL_COMPILER
- if (status == AE_NOT_FOUND) {
- status = AE_OK;
- } else {
- ACPI_ERROR_NAMESPACE(buffer_ptr, status);
- }
-#else
- ACPI_ERROR_NAMESPACE(buffer_ptr, status);
-#endif
- return_ACPI_STATUS(status);
- }
-
- /*
- * We must check to make sure that the target is
- * one of the opcodes that actually opens a scope
- */
- switch (node->type) {
- case ACPI_TYPE_ANY:
- case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
-
- /* These are acceptable types */
- break;
-
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /*
- * These types we will allow, but we will change the type. This
- * enables some existing code of the form:
- *
- * Name (DEB, 0)
- * Scope (DEB) { ... }
- */
- ACPI_WARNING((AE_INFO,
- "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
- buffer_ptr,
- acpi_ut_get_type_name(node->type)));
-
- node->type = ACPI_TYPE_ANY;
- walk_state->scope_info->common.value = ACPI_TYPE_ANY;
- break;
-
- default:
-
- /* All other types are an error */
-
- ACPI_ERROR((AE_INFO,
- "Invalid type (%s) for target of Scope operator [%4.4s]",
- acpi_ut_get_type_name(node->type),
- buffer_ptr));
-
- return (AE_AML_OPERAND_TYPE);
- }
- break;
-
- default:
-
- /* All other opcodes */
-
- if (op && op->common.node) {
-
- /* This op/node was previously entered into the namespace */
-
- node = op->common.node;
-
- if (acpi_ns_opens_scope(object_type)) {
- status =
- acpi_ds_scope_stack_push(node, object_type,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Enter the named type into the internal namespace. We enter the name
- * as we go downward in the parse tree. Any necessary subobjects that
- * involve arguments to the opcode must be created as we go back up the
- * parse tree later.
- *
- * Note: Name may already exist if we are executing a deferred opcode.
- */
- if (walk_state->deferred_node) {
-
- /* This name is already in the namespace, get the node */
-
- node = walk_state->deferred_node;
- status = AE_OK;
- break;
- }
-
- flags = ACPI_NS_NO_UPSEARCH;
- if (walk_state->pass_number == ACPI_IMODE_EXECUTE) {
-
- /* Execution mode, node cannot already exist, node is temporary */
-
- flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY);
- }
-
- /* Add new entry or lookup existing entry */
-
- status =
- acpi_ns_lookup(walk_state->scope_info, buffer_ptr,
- object_type, ACPI_IMODE_LOAD_PASS2, flags,
- walk_state, &node);
-
- if (ACPI_SUCCESS(status) && (flags & ACPI_NS_TEMPORARY)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "***New Node [%4.4s] %p is temporary\n",
- acpi_ut_get_node_name(node), node));
- }
- break;
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(buffer_ptr, status);
- return_ACPI_STATUS(status);
- }
-
- if (!op) {
-
- /* Create a new op */
-
- op = acpi_ps_alloc_op(walk_state->opcode);
- if (!op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize the new op */
-
- if (node) {
- op->named.name = node->name.integer;
- }
- *out_op = op;
- }
-
- /*
- * Put the Node in the "op" object that the parser uses, so we
- * can get it again quickly when this scope is closed
- */
- op->common.node = node;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_load2_end_op
- *
- * PARAMETERS: walk_state - Current state of the parse tree walk
- *
- * RETURN: Status
- *
- * DESCRIPTION: Ascending callback used during the loading of the namespace,
- * both control methods and everything else.
- *
- ******************************************************************************/
-
-acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
-{
- union acpi_parse_object *op;
- acpi_status status = AE_OK;
- acpi_object_type object_type;
- struct acpi_namespace_node *node;
- union acpi_parse_object *arg;
- struct acpi_namespace_node *new_node;
-#ifndef ACPI_NO_METHOD_EXECUTION
- u32 i;
- u8 region_space;
-#endif
-
- ACPI_FUNCTION_TRACE(ds_load2_end_op);
-
- op = walk_state->op;
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
- walk_state->op_info->name, op, walk_state));
-
- /* Check if opcode had an associated namespace object */
-
- if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
-#ifndef ACPI_NO_METHOD_EXECUTION
-#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
- /* No namespace object. Executable opcode? */
-
- if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
- (walk_state->op_info->class == AML_CLASS_CONTROL)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "End/EXEC: %s (fl %8.8X)\n",
- walk_state->op_info->name,
- walk_state->op_info->flags));
-
- /* Executing a type1 or type2 opcode outside of a method */
-
- status = acpi_ds_exec_end_op(walk_state);
- return_ACPI_STATUS(status);
- }
-#endif
-#endif
- return_ACPI_STATUS(AE_OK);
- }
-
- if (op->common.aml_opcode == AML_SCOPE_OP) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Ending scope Op=%p State=%p\n", op,
- walk_state));
- }
-
- object_type = walk_state->op_info->object_type;
-
- /*
- * Get the Node/name from the earlier lookup
- * (It was saved in the *op structure)
- */
- node = op->common.node;
-
- /*
- * Put the Node on the object stack (Contains the ACPI Name of
- * this object)
- */
- walk_state->operands[0] = (void *)node;
- walk_state->num_operands = 1;
-
- /* Pop the scope stack */
-
- if (acpi_ns_opens_scope(object_type) &&
- (op->common.aml_opcode != AML_INT_METHODCALL_OP)) {
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "(%s) Popping scope for Op %p\n",
- acpi_ut_get_type_name(object_type), op));
-
- status = acpi_ds_scope_stack_pop(walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
- }
-
- /*
- * Named operations are as follows:
- *
- * AML_ALIAS
- * AML_BANKFIELD
- * AML_CREATEBITFIELD
- * AML_CREATEBYTEFIELD
- * AML_CREATEDWORDFIELD
- * AML_CREATEFIELD
- * AML_CREATEQWORDFIELD
- * AML_CREATEWORDFIELD
- * AML_DATA_REGION
- * AML_DEVICE
- * AML_EVENT
- * AML_FIELD
- * AML_INDEXFIELD
- * AML_METHOD
- * AML_METHODCALL
- * AML_MUTEX
- * AML_NAME
- * AML_NAMEDFIELD
- * AML_OPREGION
- * AML_POWERRES
- * AML_PROCESSOR
- * AML_SCOPE
- * AML_THERMALZONE
- */
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "Create-Load [%s] State=%p Op=%p NamedObj=%p\n",
- acpi_ps_get_opcode_name(op->common.aml_opcode),
- walk_state, op, node));
-
- /* Decode the opcode */
-
- arg = op->common.value.arg;
-
- switch (walk_state->op_info->type) {
-#ifndef ACPI_NO_METHOD_EXECUTION
-
- case AML_TYPE_CREATE_FIELD:
- /*
- * Create the field object, but the field buffer and index must
- * be evaluated later during the execution phase
- */
- status = acpi_ds_create_buffer_field(op, walk_state);
- break;
-
- case AML_TYPE_NAMED_FIELD:
- /*
- * If we are executing a method, initialize the field
- */
- if (walk_state->method_node) {
- status = acpi_ds_init_field_objects(op, walk_state);
- }
-
- switch (op->common.aml_opcode) {
- case AML_INDEX_FIELD_OP:
-
- status =
- acpi_ds_create_index_field(op,
- (acpi_handle) arg->
- common.node, walk_state);
- break;
-
- case AML_BANK_FIELD_OP:
-
- status =
- acpi_ds_create_bank_field(op, arg->common.node,
- walk_state);
- break;
-
- case AML_FIELD_OP:
-
- status =
- acpi_ds_create_field(op, arg->common.node,
- walk_state);
- break;
-
- default:
- /* All NAMED_FIELD opcodes must be handled above */
- break;
- }
- break;
-
- case AML_TYPE_NAMED_SIMPLE:
-
- status = acpi_ds_create_operands(walk_state, arg);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- switch (op->common.aml_opcode) {
- case AML_PROCESSOR_OP:
-
- status = acpi_ex_create_processor(walk_state);
- break;
-
- case AML_POWER_RES_OP:
-
- status = acpi_ex_create_power_resource(walk_state);
- break;
-
- case AML_MUTEX_OP:
-
- status = acpi_ex_create_mutex(walk_state);
- break;
-
- case AML_EVENT_OP:
-
- status = acpi_ex_create_event(walk_state);
- break;
-
- case AML_ALIAS_OP:
-
- status = acpi_ex_create_alias(walk_state);
- break;
-
- default:
- /* Unknown opcode */
-
- status = AE_OK;
- goto cleanup;
- }
-
- /* Delete operands */
-
- for (i = 1; i < walk_state->num_operands; i++) {
- acpi_ut_remove_reference(walk_state->operands[i]);
- walk_state->operands[i] = NULL;
- }
-
- break;
-#endif /* ACPI_NO_METHOD_EXECUTION */
-
- case AML_TYPE_NAMED_COMPLEX:
-
- switch (op->common.aml_opcode) {
-#ifndef ACPI_NO_METHOD_EXECUTION
- case AML_REGION_OP:
- case AML_DATA_REGION_OP:
-
- if (op->common.aml_opcode == AML_REGION_OP) {
- region_space = (acpi_adr_space_type)
- ((op->common.value.arg)->common.value.
- integer);
- } else {
- region_space = REGION_DATA_TABLE;
- }
-
- /*
- * If we are executing a method, initialize the region
- */
- if (walk_state->method_node) {
- status =
- acpi_ex_create_region(op->named.data,
- op->named.length,
- region_space,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- /*
- * The op_region is not fully parsed at this time. Only valid
- * argument is the space_id. (We must save the address of the
- * AML of the address and length operands)
- */
-
- /*
- * If we have a valid region, initialize it
- * Namespace is NOT locked at this point.
- */
- status =
- acpi_ev_initialize_region
- (acpi_ns_get_attached_object(node), FALSE);
- if (ACPI_FAILURE(status)) {
- /*
- * If AE_NOT_EXIST is returned, it is not fatal
- * because many regions get created before a handler
- * is installed for said region.
- */
- if (AE_NOT_EXIST == status) {
- status = AE_OK;
- }
- }
- break;
-
- case AML_NAME_OP:
-
- status = acpi_ds_create_node(walk_state, node, op);
- break;
-
- case AML_METHOD_OP:
- /*
- * method_op pkg_length name_string method_flags term_list
- *
- * Note: We must create the method node/object pair as soon as we
- * see the method declaration. This allows later pass1 parsing
- * of invocations of the method (need to know the number of
- * arguments.)
- */
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "LOADING-Method: State=%p Op=%p NamedObj=%p\n",
- walk_state, op, op->named.node));
-
- if (!acpi_ns_get_attached_object(op->named.node)) {
- walk_state->operands[0] =
- ACPI_CAST_PTR(void, op->named.node);
- walk_state->num_operands = 1;
-
- status =
- acpi_ds_create_operands(walk_state,
- op->common.value.
- arg);
- if (ACPI_SUCCESS(status)) {
- status =
- acpi_ex_create_method(op->named.
- data,
- op->named.
- length,
- walk_state);
- }
- walk_state->operands[0] = NULL;
- walk_state->num_operands = 0;
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- break;
-
-#endif /* ACPI_NO_METHOD_EXECUTION */
-
- default:
- /* All NAMED_COMPLEX opcodes must be handled above */
- break;
- }
- break;
-
- case AML_CLASS_INTERNAL:
-
- /* case AML_INT_NAMEPATH_OP: */
- break;
-
- case AML_CLASS_METHOD_CALL:
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n",
- walk_state, op, node));
-
- /*
- * Lookup the method name and save the Node
- */
- status =
- acpi_ns_lookup(walk_state->scope_info,
- arg->common.value.string, ACPI_TYPE_ANY,
- ACPI_IMODE_LOAD_PASS2,
- ACPI_NS_SEARCH_PARENT |
- ACPI_NS_DONT_OPEN_SCOPE, walk_state,
- &(new_node));
- if (ACPI_SUCCESS(status)) {
- /*
- * Make sure that what we found is indeed a method
- * We didn't search for a method on purpose, to see if the name
- * would resolve
- */
- if (new_node->type != ACPI_TYPE_METHOD) {
- status = AE_AML_OPERAND_TYPE;
- }
-
- /* We could put the returned object (Node) on the object stack for
- * later, but for now, we will put it in the "op" object that the
- * parser uses, so we can get it again at the end of this scope
- */
- op->common.node = new_node;
- } else {
- ACPI_ERROR_NAMESPACE(arg->common.value.string, status);
- }
- break;
-
- default:
- break;
- }
-
- cleanup:
-
- /* Remove the Node pushed at the very beginning */
-
- walk_state->operands[0] = NULL;
- walk_state->num_operands = 0;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dswscope - Scope stack manipulation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dswscope")
-
-/****************************************************************************
- *
- * FUNCTION: acpi_ds_scope_stack_clear
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: None
- *
- * DESCRIPTION: Pop (and free) everything on the scope stack except the
- * root scope object (which remains at the stack top.)
- *
- ***************************************************************************/
-void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state)
-{
- union acpi_generic_state *scope_info;
-
- ACPI_FUNCTION_NAME(ds_scope_stack_clear);
-
- while (walk_state->scope_info) {
-
- /* Pop a scope off the stack */
-
- scope_info = walk_state->scope_info;
- walk_state->scope_info = scope_info->scope.next;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Popped object type (%s)\n",
- acpi_ut_get_type_name(scope_info->common.
- value)));
- acpi_ut_delete_generic_state(scope_info);
- }
-}
-
-/****************************************************************************
- *
- * FUNCTION: acpi_ds_scope_stack_push
- *
- * PARAMETERS: Node - Name to be made current
- * Type - Type of frame being pushed
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Push the current scope on the scope stack, and make the
- * passed Node current.
- *
- ***************************************************************************/
-
-acpi_status
-acpi_ds_scope_stack_push(struct acpi_namespace_node *node,
- acpi_object_type type,
- struct acpi_walk_state *walk_state)
-{
- union acpi_generic_state *scope_info;
- union acpi_generic_state *old_scope_info;
-
- ACPI_FUNCTION_TRACE(ds_scope_stack_push);
-
- if (!node) {
-
- /* Invalid scope */
-
- ACPI_ERROR((AE_INFO, "Null scope parameter"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Make sure object type is valid */
-
- if (!acpi_ut_valid_object_type(type)) {
- ACPI_WARNING((AE_INFO, "Invalid object type: 0x%X", type));
- }
-
- /* Allocate a new scope object */
-
- scope_info = acpi_ut_create_generic_state();
- if (!scope_info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Init new scope object */
-
- scope_info->common.descriptor_type = ACPI_DESC_TYPE_STATE_WSCOPE;
- scope_info->scope.node = node;
- scope_info->common.value = (u16) type;
-
- walk_state->scope_depth++;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[%.2d] Pushed scope ",
- (u32) walk_state->scope_depth));
-
- old_scope_info = walk_state->scope_info;
- if (old_scope_info) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
- "[%4.4s] (%s)",
- acpi_ut_get_node_name(old_scope_info->
- scope.node),
- acpi_ut_get_type_name(old_scope_info->
- common.value)));
- } else {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (%s)", "ROOT"));
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
- ", New scope -> [%4.4s] (%s)\n",
- acpi_ut_get_node_name(scope_info->scope.node),
- acpi_ut_get_type_name(scope_info->common.value)));
-
- /* Push new scope object onto stack */
-
- acpi_ut_push_generic_state(&walk_state->scope_info, scope_info);
- return_ACPI_STATUS(AE_OK);
-}
-
-/****************************************************************************
- *
- * FUNCTION: acpi_ds_scope_stack_pop
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Pop the scope stack once.
- *
- ***************************************************************************/
-
-acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state)
-{
- union acpi_generic_state *scope_info;
- union acpi_generic_state *new_scope_info;
-
- ACPI_FUNCTION_TRACE(ds_scope_stack_pop);
-
- /*
- * Pop scope info object off the stack.
- */
- scope_info = acpi_ut_pop_generic_state(&walk_state->scope_info);
- if (!scope_info) {
- return_ACPI_STATUS(AE_STACK_UNDERFLOW);
- }
-
- walk_state->scope_depth--;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[%.2d] Popped scope [%4.4s] (%s), New scope -> ",
- (u32) walk_state->scope_depth,
- acpi_ut_get_node_name(scope_info->scope.node),
- acpi_ut_get_type_name(scope_info->common.value)));
-
- new_scope_info = walk_state->scope_info;
- if (new_scope_info) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC,
- "[%4.4s] (%s)\n",
- acpi_ut_get_node_name(new_scope_info->
- scope.node),
- acpi_ut_get_type_name(new_scope_info->
- common.value)));
- } else {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "[\\___] (ROOT)\n"));
- }
-
- acpi_ut_delete_generic_state(scope_info);
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dswstate - Dispatcher parse tree walk management routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_DISPATCHER
-ACPI_MODULE_NAME("dswstate")
-
- /* Local prototypes */
-static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *ws);
-static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *ws);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_result_pop
- *
- * PARAMETERS: Object - Where to return the popped object
- * walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Pop an object off the top of this walk's result stack
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_result_pop(union acpi_operand_object **object,
- struct acpi_walk_state *walk_state)
-{
- u32 index;
- union acpi_generic_state *state;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(ds_result_pop);
-
- state = walk_state->results;
-
- /* Incorrect state of result stack */
-
- if (state && !walk_state->result_count) {
- ACPI_ERROR((AE_INFO, "No results on result stack"));
- return (AE_AML_INTERNAL);
- }
-
- if (!state && walk_state->result_count) {
- ACPI_ERROR((AE_INFO, "No result state for result stack"));
- return (AE_AML_INTERNAL);
- }
-
- /* Empty result stack */
-
- if (!state) {
- ACPI_ERROR((AE_INFO, "Result stack is empty! State=%p",
- walk_state));
- return (AE_AML_NO_RETURN_VALUE);
- }
-
- /* Return object of the top element and clean that top element result stack */
-
- walk_state->result_count--;
- index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
-
- *object = state->results.obj_desc[index];
- if (!*object) {
- ACPI_ERROR((AE_INFO,
- "No result objects on result stack, State=%p",
- walk_state));
- return (AE_AML_NO_RETURN_VALUE);
- }
-
- state->results.obj_desc[index] = NULL;
- if (index == 0) {
- status = acpi_ds_result_stack_pop(walk_state);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Obj=%p [%s] Index=%X State=%p Num=%X\n", *object,
- acpi_ut_get_object_type_name(*object),
- index, walk_state, walk_state->result_count));
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_result_push
- *
- * PARAMETERS: Object - Where to return the popped object
- * walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Push an object onto the current result stack
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_result_push(union acpi_operand_object * object,
- struct acpi_walk_state * walk_state)
-{
- union acpi_generic_state *state;
- acpi_status status;
- u32 index;
-
- ACPI_FUNCTION_NAME(ds_result_push);
-
- if (walk_state->result_count > walk_state->result_size) {
- ACPI_ERROR((AE_INFO, "Result stack is full"));
- return (AE_AML_INTERNAL);
- } else if (walk_state->result_count == walk_state->result_size) {
-
- /* Extend the result stack */
-
- status = acpi_ds_result_stack_push(walk_state);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Failed to extend the result stack"));
- return (status);
- }
- }
-
- if (!(walk_state->result_count < walk_state->result_size)) {
- ACPI_ERROR((AE_INFO, "No free elements in result stack"));
- return (AE_AML_INTERNAL);
- }
-
- state = walk_state->results;
- if (!state) {
- ACPI_ERROR((AE_INFO, "No result stack frame during push"));
- return (AE_AML_INTERNAL);
- }
-
- if (!object) {
- ACPI_ERROR((AE_INFO,
- "Null Object! Obj=%p State=%p Num=%X",
- object, walk_state, walk_state->result_count));
- return (AE_BAD_PARAMETER);
- }
-
- /* Assign the address of object to the top free element of result stack */
-
- index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
- state->results.obj_desc[index] = object;
- walk_state->result_count++;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p Num=%X Cur=%X\n",
- object,
- acpi_ut_get_object_type_name((union
- acpi_operand_object *)
- object), walk_state,
- walk_state->result_count,
- walk_state->current_result));
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_result_stack_push
- *
- * PARAMETERS: walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Push an object onto the walk_state result stack
- *
- ******************************************************************************/
-
-static acpi_status acpi_ds_result_stack_push(struct acpi_walk_state *walk_state)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_NAME(ds_result_stack_push);
-
- /* Check for stack overflow */
-
- if (((u32) walk_state->result_size + ACPI_RESULTS_FRAME_OBJ_NUM) >
- ACPI_RESULTS_OBJ_NUM_MAX) {
- ACPI_ERROR((AE_INFO, "Result stack overflow: State=%p Num=%X",
- walk_state, walk_state->result_size));
- return (AE_STACK_OVERFLOW);
- }
-
- state = acpi_ut_create_generic_state();
- if (!state) {
- return (AE_NO_MEMORY);
- }
-
- state->common.descriptor_type = ACPI_DESC_TYPE_STATE_RESULT;
- acpi_ut_push_generic_state(&walk_state->results, state);
-
- /* Increase the length of the result stack by the length of frame */
-
- walk_state->result_size += ACPI_RESULTS_FRAME_OBJ_NUM;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Results=%p State=%p\n",
- state, walk_state));
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_result_stack_pop
- *
- * PARAMETERS: walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Pop an object off of the walk_state result stack
- *
- ******************************************************************************/
-
-static acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_NAME(ds_result_stack_pop);
-
- /* Check for stack underflow */
-
- if (walk_state->results == NULL) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Result stack underflow - State=%p\n",
- walk_state));
- return (AE_AML_NO_OPERAND);
- }
-
- if (walk_state->result_size < ACPI_RESULTS_FRAME_OBJ_NUM) {
- ACPI_ERROR((AE_INFO, "Insufficient result stack size"));
- return (AE_AML_INTERNAL);
- }
-
- state = acpi_ut_pop_generic_state(&walk_state->results);
- acpi_ut_delete_generic_state(state);
-
- /* Decrease the length of result stack by the length of frame */
-
- walk_state->result_size -= ACPI_RESULTS_FRAME_OBJ_NUM;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Result=%p RemainingResults=%X State=%p\n",
- state, walk_state->result_count, walk_state));
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_obj_stack_push
- *
- * PARAMETERS: Object - Object to push
- * walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Push an object onto this walk's object/operand stack
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state)
-{
- ACPI_FUNCTION_NAME(ds_obj_stack_push);
-
- /* Check for stack overflow */
-
- if (walk_state->num_operands >= ACPI_OBJ_NUM_OPERANDS) {
- ACPI_ERROR((AE_INFO,
- "Object stack overflow! Obj=%p State=%p #Ops=%X",
- object, walk_state, walk_state->num_operands));
- return (AE_STACK_OVERFLOW);
- }
-
- /* Put the object onto the stack */
-
- walk_state->operands[walk_state->operand_index] = object;
- walk_state->num_operands++;
-
- /* For the usual order of filling the operand stack */
-
- walk_state->operand_index++;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p [%s] State=%p #Ops=%X\n",
- object,
- acpi_ut_get_object_type_name((union
- acpi_operand_object *)
- object), walk_state,
- walk_state->num_operands));
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_obj_stack_pop
- *
- * PARAMETERS: pop_count - Number of objects/entries to pop
- * walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Pop this walk's object stack. Objects on the stack are NOT
- * deleted by this routine.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state)
-{
- u32 i;
-
- ACPI_FUNCTION_NAME(ds_obj_stack_pop);
-
- for (i = 0; i < pop_count; i++) {
-
- /* Check for stack underflow */
-
- if (walk_state->num_operands == 0) {
- ACPI_ERROR((AE_INFO,
- "Object stack underflow! Count=%X State=%p #Ops=%X",
- pop_count, walk_state,
- walk_state->num_operands));
- return (AE_STACK_UNDERFLOW);
- }
-
- /* Just set the stack entry to null */
-
- walk_state->num_operands--;
- walk_state->operands[walk_state->num_operands] = NULL;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n",
- pop_count, walk_state, walk_state->num_operands));
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_obj_stack_pop_and_delete
- *
- * PARAMETERS: pop_count - Number of objects/entries to pop
- * walk_state - Current Walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Pop this walk's object stack and delete each object that is
- * popped off.
- *
- ******************************************************************************/
-
-void
-acpi_ds_obj_stack_pop_and_delete(u32 pop_count,
- struct acpi_walk_state *walk_state)
-{
- s32 i;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete);
-
- if (pop_count == 0) {
- return;
- }
-
- for (i = (s32) pop_count - 1; i >= 0; i--) {
- if (walk_state->num_operands == 0) {
- return;
- }
-
- /* Pop the stack and delete an object if present in this stack entry */
-
- walk_state->num_operands--;
- obj_desc = walk_state->operands[i];
- if (obj_desc) {
- acpi_ut_remove_reference(walk_state->operands[i]);
- walk_state->operands[i] = NULL;
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Count=%X State=%p #Ops=%X\n",
- pop_count, walk_state, walk_state->num_operands));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_get_current_walk_state
- *
- * PARAMETERS: Thread - Get current active state for this Thread
- *
- * RETURN: Pointer to the current walk state
- *
- * DESCRIPTION: Get the walk state that is at the head of the list (the "current"
- * walk state.)
- *
- ******************************************************************************/
-
-struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state
- *thread)
-{
- ACPI_FUNCTION_NAME(ds_get_current_walk_state);
-
- if (!thread) {
- return (NULL);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current WalkState %p\n",
- thread->walk_state_list));
-
- return (thread->walk_state_list);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_push_walk_state
- *
- * PARAMETERS: walk_state - State to push
- * Thread - Thread state object
- *
- * RETURN: None
- *
- * DESCRIPTION: Place the Thread state at the head of the state list
- *
- ******************************************************************************/
-
-void
-acpi_ds_push_walk_state(struct acpi_walk_state *walk_state,
- struct acpi_thread_state *thread)
-{
- ACPI_FUNCTION_TRACE(ds_push_walk_state);
-
- walk_state->next = thread->walk_state_list;
- thread->walk_state_list = walk_state;
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_pop_walk_state
- *
- * PARAMETERS: Thread - Current thread state
- *
- * RETURN: A walk_state object popped from the thread's stack
- *
- * DESCRIPTION: Remove and return the walkstate object that is at the head of
- * the walk stack for the given walk list. NULL indicates that
- * the list is empty.
- *
- ******************************************************************************/
-
-struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
-{
- struct acpi_walk_state *walk_state;
-
- ACPI_FUNCTION_TRACE(ds_pop_walk_state);
-
- walk_state = thread->walk_state_list;
-
- if (walk_state) {
-
- /* Next walk state becomes the current walk state */
-
- thread->walk_state_list = walk_state->next;
-
- /*
- * Don't clear the NEXT field, this serves as an indicator
- * that there is a parent WALK STATE
- * Do Not: walk_state->Next = NULL;
- */
- }
-
- return_PTR(walk_state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_create_walk_state
- *
- * PARAMETERS: owner_id - ID for object creation
- * Origin - Starting point for this walk
- * method_desc - Method object
- * Thread - Current thread state
- *
- * RETURN: Pointer to the new walk state.
- *
- * DESCRIPTION: Allocate and initialize a new walk state. The current walk
- * state is set to this new state.
- *
- ******************************************************************************/
-
-struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object
- *origin, union acpi_operand_object
- *method_desc, struct acpi_thread_state
- *thread)
-{
- struct acpi_walk_state *walk_state;
-
- ACPI_FUNCTION_TRACE(ds_create_walk_state);
-
- walk_state = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_walk_state));
- if (!walk_state) {
- return_PTR(NULL);
- }
-
- walk_state->descriptor_type = ACPI_DESC_TYPE_WALK;
- walk_state->method_desc = method_desc;
- walk_state->owner_id = owner_id;
- walk_state->origin = origin;
- walk_state->thread = thread;
-
- walk_state->parser_state.start_op = origin;
-
- /* Init the method args/local */
-
-#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
- acpi_ds_method_data_init(walk_state);
-#endif
-
- /* Put the new state at the head of the walk list */
-
- if (thread) {
- acpi_ds_push_walk_state(walk_state, thread);
- }
-
- return_PTR(walk_state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_init_aml_walk
- *
- * PARAMETERS: walk_state - New state to be initialized
- * Op - Current parse op
- * method_node - Control method NS node, if any
- * aml_start - Start of AML
- * aml_length - Length of AML
- * Info - Method info block (params, etc.)
- * pass_number - 1, 2, or 3
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize a walk state for a pass 1 or 2 parse tree walk
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- struct acpi_namespace_node *method_node,
- u8 * aml_start,
- u32 aml_length,
- struct acpi_evaluate_info *info, u8 pass_number)
-{
- acpi_status status;
- struct acpi_parse_state *parser_state = &walk_state->parser_state;
- union acpi_parse_object *extra_op;
-
- ACPI_FUNCTION_TRACE(ds_init_aml_walk);
-
- walk_state->parser_state.aml =
- walk_state->parser_state.aml_start = aml_start;
- walk_state->parser_state.aml_end =
- walk_state->parser_state.pkg_end = aml_start + aml_length;
-
- /* The next_op of the next_walk will be the beginning of the method */
-
- walk_state->next_op = NULL;
- walk_state->pass_number = pass_number;
-
- if (info) {
- walk_state->params = info->parameters;
- walk_state->caller_return_desc = &info->return_object;
- }
-
- status = acpi_ps_init_scope(&walk_state->parser_state, op);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (method_node) {
- walk_state->parser_state.start_node = method_node;
- walk_state->walk_type = ACPI_WALK_METHOD;
- walk_state->method_node = method_node;
- walk_state->method_desc =
- acpi_ns_get_attached_object(method_node);
-
- /* Push start scope on scope stack and make it current */
-
- status =
- acpi_ds_scope_stack_push(method_node, ACPI_TYPE_METHOD,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Init the method arguments */
-
- status = acpi_ds_method_data_init_args(walk_state->params,
- ACPI_METHOD_NUM_ARGS,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- } else {
- /*
- * Setup the current scope.
- * Find a Named Op that has a namespace node associated with it.
- * search upwards from this Op. Current scope is the first
- * Op with a namespace node.
- */
- extra_op = parser_state->start_op;
- while (extra_op && !extra_op->common.node) {
- extra_op = extra_op->common.parent;
- }
-
- if (!extra_op) {
- parser_state->start_node = NULL;
- } else {
- parser_state->start_node = extra_op->common.node;
- }
-
- if (parser_state->start_node) {
-
- /* Push start scope on scope stack and make it current */
-
- status =
- acpi_ds_scope_stack_push(parser_state->start_node,
- parser_state->start_node->
- type, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- }
-
- status = acpi_ds_init_callbacks(walk_state, pass_number);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ds_delete_walk_state
- *
- * PARAMETERS: walk_state - State to delete
- *
- * RETURN: Status
- *
- * DESCRIPTION: Delete a walk state including all internal data structures
- *
- ******************************************************************************/
-
-void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_TRACE_PTR(ds_delete_walk_state, walk_state);
-
- if (!walk_state) {
- return;
- }
-
- if (walk_state->descriptor_type != ACPI_DESC_TYPE_WALK) {
- ACPI_ERROR((AE_INFO, "%p is not a valid walk state",
- walk_state));
- return;
- }
-
- /* There should not be any open scopes */
-
- if (walk_state->parser_state.scope) {
- ACPI_ERROR((AE_INFO, "%p walk still has a scope list",
- walk_state));
- acpi_ps_cleanup_scope(&walk_state->parser_state);
- }
-
- /* Always must free any linked control states */
-
- while (walk_state->control_state) {
- state = walk_state->control_state;
- walk_state->control_state = state->common.next;
-
- acpi_ut_delete_generic_state(state);
- }
-
- /* Always must free any linked parse states */
-
- while (walk_state->scope_info) {
- state = walk_state->scope_info;
- walk_state->scope_info = state->common.next;
-
- acpi_ut_delete_generic_state(state);
- }
-
- /* Always must free any stacked result states */
-
- while (walk_state->results) {
- state = walk_state->results;
- walk_state->results = state->common.next;
-
- acpi_ut_delete_generic_state(state);
- }
-
- ACPI_FREE(walk_state);
- return_VOID;
-}
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := evevent.o evregion.o evsci.o evxfevnt.o \
- evmisc.o evrgnini.o evxface.o evxfregn.o \
- evgpe.o evgpeblk.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evevent - Fixed Event handling and dispatch
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evevent")
-
-/* Local prototypes */
-static acpi_status acpi_ev_fixed_event_initialize(void);
-
-static u32 acpi_ev_fixed_event_dispatch(u32 event);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_initialize_events
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize global data structures for ACPI events (Fixed, GPE)
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_initialize_events(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_initialize_events);
-
- /*
- * Initialize the Fixed and General Purpose Events. This is done prior to
- * enabling SCIs to prevent interrupts from occurring before the handlers
- * are installed.
- */
- status = acpi_ev_fixed_event_initialize();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to initialize fixed events"));
- return_ACPI_STATUS(status);
- }
-
- status = acpi_ev_gpe_initialize();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to initialize general purpose events"));
- return_ACPI_STATUS(status);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_install_fadt_gpes
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Completes initialization of the FADT-defined GPE blocks
- * (0 and 1). This causes the _PRW methods to be run, so the HW
- * must be fully initialized at this point, including global lock
- * support.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_install_fadt_gpes(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_install_fadt_gpes);
-
- /* Namespace must be locked */
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* FADT GPE Block 0 */
-
- (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
- acpi_gbl_gpe_fadt_blocks[0]);
-
- /* FADT GPE Block 1 */
-
- (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
- acpi_gbl_gpe_fadt_blocks[1]);
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_install_xrupt_handlers
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install interrupt handlers for the SCI and Global Lock
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_install_xrupt_handlers(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers);
-
- /* Install the SCI handler */
-
- status = acpi_ev_install_sci_handler();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to install System Control Interrupt handler"));
- return_ACPI_STATUS(status);
- }
-
- /* Install the handler for the Global Lock */
-
- status = acpi_ev_init_global_lock_handler();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to initialize Global Lock handler"));
- return_ACPI_STATUS(status);
- }
-
- acpi_gbl_events_initialized = TRUE;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_fixed_event_initialize
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install the fixed event handlers and enable the fixed events.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ev_fixed_event_initialize(void)
-{
- u32 i;
- acpi_status status;
-
- /*
- * Initialize the structure that keeps track of fixed event handlers and
- * enable the fixed events.
- */
- for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
- acpi_gbl_fixed_event_handlers[i].handler = NULL;
- acpi_gbl_fixed_event_handlers[i].context = NULL;
-
- /* Enable the fixed event */
-
- if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) {
- status =
- acpi_set_register(acpi_gbl_fixed_event_info[i].
- enable_register_id, 0);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_fixed_event_detect
- *
- * PARAMETERS: None
- *
- * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
- *
- * DESCRIPTION: Checks the PM status register for active fixed events
- *
- ******************************************************************************/
-
-u32 acpi_ev_fixed_event_detect(void)
-{
- u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
- u32 fixed_status;
- u32 fixed_enable;
- u32 i;
-
- ACPI_FUNCTION_NAME(ev_fixed_event_detect);
-
- /*
- * Read the fixed feature status and enable registers, as all the cases
- * depend on their values. Ignore errors here.
- */
- (void)acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status);
- (void)acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
- "Fixed Event Block: Enable %08X Status %08X\n",
- fixed_enable, fixed_status));
-
- /*
- * Check for all possible Fixed Events and dispatch those that are active
- */
- for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
-
- /* Both the status and enable bits must be on for this event */
-
- if ((fixed_status & acpi_gbl_fixed_event_info[i].
- status_bit_mask)
- && (fixed_enable & acpi_gbl_fixed_event_info[i].
- enable_bit_mask)) {
-
- /* Found an active (signalled) event */
- acpi_os_fixed_event_count(i);
- int_status |= acpi_ev_fixed_event_dispatch(i);
- }
- }
-
- return (int_status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_fixed_event_dispatch
- *
- * PARAMETERS: Event - Event type
- *
- * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
- *
- * DESCRIPTION: Clears the status bit for the requested event, calls the
- * handler that previously registered for the event.
- *
- ******************************************************************************/
-
-static u32 acpi_ev_fixed_event_dispatch(u32 event)
-{
-
- ACPI_FUNCTION_ENTRY();
-
- /* Clear the status bit */
-
- (void)acpi_set_register(acpi_gbl_fixed_event_info[event].
- status_register_id, 1);
-
- /*
- * Make sure we've got a handler. If not, report an error. The event is
- * disabled to prevent further interrupts.
- */
- if (NULL == acpi_gbl_fixed_event_handlers[event].handler) {
- (void)acpi_set_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, 0);
-
- ACPI_ERROR((AE_INFO,
- "No installed handler for fixed event [%08X]",
- event));
-
- return (ACPI_INTERRUPT_NOT_HANDLED);
- }
-
- /* Invoke the Fixed Event handler */
-
- return ((acpi_gbl_fixed_event_handlers[event].
- handler) (acpi_gbl_fixed_event_handlers[event].context));
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evgpe - General Purpose Event handling and dispatch
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evgpe")
-
-/* Local prototypes */
-static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_set_gpe_type
- *
- * PARAMETERS: gpe_event_info - GPE to set
- * Type - New type
- *
- * RETURN: Status
- *
- * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_set_gpe_type);
-
- /* Validate type and update register enable masks */
-
- switch (type) {
- case ACPI_GPE_TYPE_WAKE:
- case ACPI_GPE_TYPE_RUNTIME:
- case ACPI_GPE_TYPE_WAKE_RUN:
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Disable the GPE if currently enabled */
-
- status = acpi_ev_disable_gpe(gpe_event_info);
-
- /* Type was validated above */
-
- gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; /* Clear type bits */
- gpe_event_info->flags |= type; /* Insert type */
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_update_gpe_enable_masks
- *
- * PARAMETERS: gpe_event_info - GPE to update
- * Type - What to do: ACPI_GPE_DISABLE or
- * ACPI_GPE_ENABLE
- *
- * RETURN: Status
- *
- * DESCRIPTION: Updates GPE register enable masks based on the GPE type
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info,
- u8 type)
-{
- struct acpi_gpe_register_info *gpe_register_info;
- u8 register_bit;
-
- ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks);
-
- gpe_register_info = gpe_event_info->register_info;
- if (!gpe_register_info) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
- register_bit = (u8)
- (1 <<
- (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
-
- /* 1) Disable case. Simply clear all enable bits */
-
- if (type == ACPI_GPE_DISABLE) {
- ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
- register_bit);
- ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
- return_ACPI_STATUS(AE_OK);
- }
-
- /* 2) Enable case. Set/Clear the appropriate enable bits */
-
- switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
- case ACPI_GPE_TYPE_WAKE:
- ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
- ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit);
- break;
-
- case ACPI_GPE_TYPE_RUNTIME:
- ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake,
- register_bit);
- ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit);
- break;
-
- case ACPI_GPE_TYPE_WAKE_RUN:
- ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit);
- ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit);
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_enable_gpe
- *
- * PARAMETERS: gpe_event_info - GPE to enable
- * write_to_hardware - Enable now, or just mark data structs
- * (WAKE GPEs should be deferred)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable a GPE based on the GPE type
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
- u8 write_to_hardware)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_enable_gpe);
-
- /* Make sure HW enable masks are updated */
-
- status =
- acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Mark wake-enabled or HW enable, or both */
-
- switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
- case ACPI_GPE_TYPE_WAKE:
-
- ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
- break;
-
- case ACPI_GPE_TYPE_WAKE_RUN:
-
- ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
-
- /*lint -fallthrough */
-
- case ACPI_GPE_TYPE_RUNTIME:
-
- ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
-
- if (write_to_hardware) {
-
- /* Clear the GPE (of stale events), then enable it */
-
- status = acpi_hw_clear_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Enable the requested runtime GPE */
-
- status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
- }
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_disable_gpe
- *
- * PARAMETERS: gpe_event_info - GPE to disable
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable a GPE based on the GPE type
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_disable_gpe);
-
- /* Make sure HW enable masks are updated */
-
- status =
- acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Clear the appropriate enabled flags for this GPE */
-
- switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) {
- case ACPI_GPE_TYPE_WAKE:
- ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
- break;
-
- case ACPI_GPE_TYPE_WAKE_RUN:
- ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED);
-
- /* fallthrough */
-
- case ACPI_GPE_TYPE_RUNTIME:
-
- /* Disable the requested runtime GPE */
-
- ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
- break;
-
- default:
- break;
- }
-
- /*
- * Even if we don't know the GPE type, make sure that we always
- * disable it. low_disable_gpe will just clear the enable bit for this
- * GPE and write it. It will not write out the current GPE enable mask,
- * since this may inadvertently enable GPEs too early, if a rogue GPE has
- * come in during ACPICA initialization - possibly as a result of AML or
- * other code that has enabled the GPE.
- */
- status = acpi_hw_low_disable_gpe(gpe_event_info);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_get_gpe_event_info
- *
- * PARAMETERS: gpe_device - Device node. NULL for GPE0/GPE1
- * gpe_number - Raw GPE number
- *
- * RETURN: A GPE event_info struct. NULL if not a valid GPE
- *
- * DESCRIPTION: Returns the event_info struct associated with this GPE.
- * Validates the gpe_block and the gpe_number
- *
- * Should be called only when the GPE lists are semaphore locked
- * and not subject to change.
- *
- ******************************************************************************/
-
-struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
- u32 gpe_number)
-{
- union acpi_operand_object *obj_desc;
- struct acpi_gpe_block_info *gpe_block;
- u32 i;
-
- ACPI_FUNCTION_ENTRY();
-
- /* A NULL gpe_block means use the FADT-defined GPE block(s) */
-
- if (!gpe_device) {
-
- /* Examine GPE Block 0 and 1 (These blocks are permanent) */
-
- for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) {
- gpe_block = acpi_gbl_gpe_fadt_blocks[i];
- if (gpe_block) {
- if ((gpe_number >= gpe_block->block_base_number)
- && (gpe_number <
- gpe_block->block_base_number +
- (gpe_block->register_count * 8))) {
- return (&gpe_block->
- event_info[gpe_number -
- gpe_block->
- block_base_number]);
- }
- }
- }
-
- /* The gpe_number was not in the range of either FADT GPE block */
-
- return (NULL);
- }
-
- /* A Non-NULL gpe_device means this is a GPE Block Device */
-
- obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)
- gpe_device);
- if (!obj_desc || !obj_desc->device.gpe_block) {
- return (NULL);
- }
-
- gpe_block = obj_desc->device.gpe_block;
-
- if ((gpe_number >= gpe_block->block_base_number) &&
- (gpe_number <
- gpe_block->block_base_number + (gpe_block->register_count * 8))) {
- return (&gpe_block->
- event_info[gpe_number - gpe_block->block_base_number]);
- }
-
- return (NULL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_gpe_detect
- *
- * PARAMETERS: gpe_xrupt_list - Interrupt block for this interrupt.
- * Can have multiple GPE blocks attached.
- *
- * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
- *
- * DESCRIPTION: Detect if any GP events have occurred. This function is
- * executed at interrupt level.
- *
- ******************************************************************************/
-
-u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
-{
- acpi_status status;
- struct acpi_gpe_block_info *gpe_block;
- struct acpi_gpe_register_info *gpe_register_info;
- u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
- u8 enabled_status_byte;
- u32 status_reg;
- u32 enable_reg;
- acpi_cpu_flags flags;
- u32 i;
- u32 j;
-
- ACPI_FUNCTION_NAME(ev_gpe_detect);
-
- /* Check for the case where there are no GPEs */
-
- if (!gpe_xrupt_list) {
- return (int_status);
- }
-
- /*
- * We need to obtain the GPE lock for both the data structs and registers
- * Note: Not necessary to obtain the hardware lock, since the GPE
- * registers are owned by the gpe_lock.
- */
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
-
- /* Examine all GPE blocks attached to this interrupt level */
-
- gpe_block = gpe_xrupt_list->gpe_block_list_head;
- while (gpe_block) {
- /*
- * Read all of the 8-bit GPE status and enable registers in this GPE
- * block, saving all of them. Find all currently active GP events.
- */
- for (i = 0; i < gpe_block->register_count; i++) {
-
- /* Get the next status/enable pair */
-
- gpe_register_info = &gpe_block->register_info[i];
-
- /* Read the Status Register */
-
- status =
- acpi_read(&status_reg,
- &gpe_register_info->status_address);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Read the Enable Register */
-
- status =
- acpi_read(&enable_reg,
- &gpe_register_info->enable_address);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
- "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n",
- gpe_register_info->base_gpe_number,
- status_reg, enable_reg));
-
- /* Check if there is anything active at all in this register */
-
- enabled_status_byte = (u8) (status_reg & enable_reg);
- if (!enabled_status_byte) {
-
- /* No active GPEs in this register, move on */
-
- continue;
- }
-
- /* Now look at the individual GPEs in this byte register */
-
- for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
-
- /* Examine one GPE bit */
-
- if (enabled_status_byte & (1 << j)) {
- /*
- * Found an active GPE. Dispatch the event to a handler
- * or method.
- */
- int_status |=
- acpi_ev_gpe_dispatch(&gpe_block->
- event_info[((acpi_size) i * ACPI_GPE_REGISTER_WIDTH) + j], j + gpe_register_info->base_gpe_number);
- }
- }
- }
-
- gpe_block = gpe_block->next;
- }
-
- unlock_and_exit:
-
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- return (int_status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_asynch_execute_gpe_method
- *
- * PARAMETERS: Context (gpe_event_info) - Info for this GPE
- *
- * RETURN: None
- *
- * DESCRIPTION: Perform the actual execution of a GPE control method. This
- * function is called from an invocation of acpi_os_execute and
- * therefore does NOT execute at interrupt level - so that
- * the control method itself is not executed in the context of
- * an interrupt handler.
- *
- ******************************************************************************/
-static void acpi_ev_asynch_enable_gpe(void *context);
-
-static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
-{
- struct acpi_gpe_event_info *gpe_event_info = (void *)context;
- acpi_status status;
- struct acpi_gpe_event_info local_gpe_event_info;
- struct acpi_evaluate_info *info;
-
- ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
-
- /* Must revalidate the gpe_number/gpe_block */
-
- if (!acpi_ev_valid_gpe_event(gpe_event_info)) {
- status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_VOID;
- }
-
- /* Set the GPE flags for return to enabled state */
-
- (void)acpi_ev_enable_gpe(gpe_event_info, FALSE);
-
- /*
- * Take a snapshot of the GPE info for this level - we copy the info to
- * prevent a race condition with remove_handler/remove_block.
- */
- ACPI_MEMCPY(&local_gpe_event_info, gpe_event_info,
- sizeof(struct acpi_gpe_event_info));
-
- status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
-
- /*
- * Must check for control method type dispatch one more time to avoid a
- * race with ev_gpe_install_handler
- */
- if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) ==
- ACPI_GPE_DISPATCH_METHOD) {
-
- /* Allocate the evaluation information block */
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- status = AE_NO_MEMORY;
- } else {
- /*
- * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
- * control method that corresponds to this GPE
- */
- info->prefix_node =
- local_gpe_event_info.dispatch.method_node;
- info->flags = ACPI_IGNORE_RETURN_VALUE;
-
- status = acpi_ns_evaluate(info);
- ACPI_FREE(info);
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "while evaluating GPE method [%4.4s]",
- acpi_ut_get_node_name
- (local_gpe_event_info.dispatch.
- method_node)));
- }
- }
- /* Defer enabling of GPE until all notify handlers are done */
- acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_asynch_enable_gpe,
- gpe_event_info);
- return_VOID;
-}
-
-static void acpi_ev_asynch_enable_gpe(void *context)
-{
- struct acpi_gpe_event_info *gpe_event_info = context;
- acpi_status status;
- if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
- ACPI_GPE_LEVEL_TRIGGERED) {
- /*
- * GPE is level-triggered, we clear the GPE status bit after handling
- * the event.
- */
- status = acpi_hw_clear_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
- }
-
- /* Enable this GPE */
- (void)acpi_hw_write_gpe_enable_reg(gpe_event_info);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_gpe_dispatch
- *
- * PARAMETERS: gpe_event_info - Info for this GPE
- * gpe_number - Number relative to the parent GPE block
- *
- * RETURN: INTERRUPT_HANDLED or INTERRUPT_NOT_HANDLED
- *
- * DESCRIPTION: Dispatch a General Purpose Event to either a function (e.g. EC)
- * or method (e.g. _Lxx/_Exx) handler.
- *
- * This function executes at interrupt level.
- *
- ******************************************************************************/
-
-u32
-acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_gpe_dispatch);
-
- acpi_os_gpe_count(gpe_number);
-
- /*
- * If edge-triggered, clear the GPE status bit now. Note that
- * level-triggered events are cleared after the GPE is serviced.
- */
- if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
- ACPI_GPE_EDGE_TRIGGERED) {
- status = acpi_hw_clear_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to clear GPE[%2X]",
- gpe_number));
- return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
- }
- }
-
- /*
- * Dispatch the GPE to either an installed handler, or the control method
- * associated with this GPE (_Lxx or _Exx). If a handler exists, we invoke
- * it and do not attempt to run the method. If there is neither a handler
- * nor a method, we disable this GPE to prevent further such pointless
- * events from firing.
- */
- switch (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) {
- case ACPI_GPE_DISPATCH_HANDLER:
-
- /*
- * Invoke the installed handler (at interrupt level)
- * Ignore return status for now.
- * TBD: leave GPE disabled on error?
- */
- (void)gpe_event_info->dispatch.handler->address(gpe_event_info->
- dispatch.
- handler->
- context);
-
- /* It is now safe to clear level-triggered events. */
-
- if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
- ACPI_GPE_LEVEL_TRIGGERED) {
- status = acpi_hw_clear_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to clear GPE[%2X]",
- gpe_number));
- return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
- }
- }
- break;
-
- case ACPI_GPE_DISPATCH_METHOD:
-
- /*
- * Disable the GPE, so it doesn't keep firing before the method has a
- * chance to run (it runs asynchronously with interrupts enabled).
- */
- status = acpi_ev_disable_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to disable GPE[%2X]",
- gpe_number));
- return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
- }
-
- /*
- * Execute the method associated with the GPE
- * NOTE: Level-triggered GPEs are cleared after the method completes.
- */
- status = acpi_os_execute(OSL_GPE_HANDLER,
- acpi_ev_asynch_execute_gpe_method,
- gpe_event_info);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to queue handler for GPE[%2X] - event disabled",
- gpe_number));
- }
- break;
-
- default:
-
- /* No handler or method to run! */
-
- ACPI_ERROR((AE_INFO,
- "No handler or method for GPE[%2X], disabling event",
- gpe_number));
-
- /*
- * Disable the GPE. The GPE will remain disabled until the ACPICA
- * Core Subsystem is restarted, or a handler is installed.
- */
- status = acpi_ev_disable_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Unable to disable GPE[%2X]",
- gpe_number));
- return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
- }
- break;
- }
-
- return_UINT32(ACPI_INTERRUPT_HANDLED);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evgpeblk - GPE block creation and initialization.
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evgpeblk")
-
-/* Local prototypes */
-static acpi_status
-acpi_ev_save_method_info(acpi_handle obj_handle,
- u32 level, void *obj_desc, void **return_value);
-
-static acpi_status
-acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
- u32 level, void *info, void **return_value);
-
-static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
- interrupt_number);
-
-static acpi_status
-acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt);
-
-static acpi_status
-acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
- u32 interrupt_number);
-
-static acpi_status
-acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_valid_gpe_event
- *
- * PARAMETERS: gpe_event_info - Info for this GPE
- *
- * RETURN: TRUE if the gpe_event is valid
- *
- * DESCRIPTION: Validate a GPE event. DO NOT CALL FROM INTERRUPT LEVEL.
- * Should be called only when the GPE lists are semaphore locked
- * and not subject to change.
- *
- ******************************************************************************/
-
-u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info)
-{
- struct acpi_gpe_xrupt_info *gpe_xrupt_block;
- struct acpi_gpe_block_info *gpe_block;
-
- ACPI_FUNCTION_ENTRY();
-
- /* No need for spin lock since we are not changing any list elements */
-
- /* Walk the GPE interrupt levels */
-
- gpe_xrupt_block = acpi_gbl_gpe_xrupt_list_head;
- while (gpe_xrupt_block) {
- gpe_block = gpe_xrupt_block->gpe_block_list_head;
-
- /* Walk the GPE blocks on this interrupt level */
-
- while (gpe_block) {
- if ((&gpe_block->event_info[0] <= gpe_event_info) &&
- (&gpe_block->
- event_info[((acpi_size) gpe_block->
- register_count) * 8] >
- gpe_event_info)) {
- return (TRUE);
- }
-
- gpe_block = gpe_block->next;
- }
-
- gpe_xrupt_block = gpe_xrupt_block->next;
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_walk_gpe_list
- *
- * PARAMETERS: gpe_walk_callback - Routine called for each GPE block
- * Context - Value passed to callback
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk the GPE lists.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context)
-{
- struct acpi_gpe_block_info *gpe_block;
- struct acpi_gpe_xrupt_info *gpe_xrupt_info;
- acpi_status status = AE_OK;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(ev_walk_gpe_list);
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
-
- /* Walk the interrupt level descriptor list */
-
- gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
- while (gpe_xrupt_info) {
-
- /* Walk all Gpe Blocks attached to this interrupt level */
-
- gpe_block = gpe_xrupt_info->gpe_block_list_head;
- while (gpe_block) {
-
- /* One callback per GPE block */
-
- status =
- gpe_walk_callback(gpe_xrupt_info, gpe_block,
- context);
- if (ACPI_FAILURE(status)) {
- if (status == AE_CTRL_END) { /* Callback abort */
- status = AE_OK;
- }
- goto unlock_and_exit;
- }
-
- gpe_block = gpe_block->next;
- }
-
- gpe_xrupt_info = gpe_xrupt_info->next;
- }
-
- unlock_and_exit:
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_delete_gpe_handlers
- *
- * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
- * gpe_block - Gpe Block info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Delete all Handler objects found in the GPE data structs.
- * Used only prior to termination.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block,
- void *context)
-{
- struct acpi_gpe_event_info *gpe_event_info;
- u32 i;
- u32 j;
-
- ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers);
-
- /* Examine each GPE Register within the block */
-
- for (i = 0; i < gpe_block->register_count; i++) {
-
- /* Now look at the individual GPEs in this byte register */
-
- for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
- gpe_event_info =
- &gpe_block->
- event_info[((acpi_size) i *
- ACPI_GPE_REGISTER_WIDTH) + j];
-
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
- ACPI_GPE_DISPATCH_HANDLER) {
- ACPI_FREE(gpe_event_info->dispatch.handler);
- gpe_event_info->dispatch.handler = NULL;
- gpe_event_info->flags &=
- ~ACPI_GPE_DISPATCH_MASK;
- }
- }
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_save_method_info
- *
- * PARAMETERS: Callback from walk_namespace
- *
- * RETURN: Status
- *
- * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a
- * control method under the _GPE portion of the namespace.
- * Extract the name and GPE type from the object, saving this
- * information for quick lookup during GPE dispatch
- *
- * The name of each GPE control method is of the form:
- * "_Lxx" or "_Exx"
- * Where:
- * L - means that the GPE is level triggered
- * E - means that the GPE is edge triggered
- * xx - is the GPE number [in HEX]
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_save_method_info(acpi_handle obj_handle,
- u32 level, void *obj_desc, void **return_value)
-{
- struct acpi_gpe_block_info *gpe_block = (void *)obj_desc;
- struct acpi_gpe_event_info *gpe_event_info;
- u32 gpe_number;
- char name[ACPI_NAME_SIZE + 1];
- u8 type;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_save_method_info);
-
- /*
- * _Lxx and _Exx GPE method support
- *
- * 1) Extract the name from the object and convert to a string
- */
- ACPI_MOVE_32_TO_32(name,
- &((struct acpi_namespace_node *)obj_handle)->name.
- integer);
- name[ACPI_NAME_SIZE] = 0;
-
- /*
- * 2) Edge/Level determination is based on the 2nd character
- * of the method name
- *
- * NOTE: Default GPE type is RUNTIME. May be changed later to WAKE
- * if a _PRW object is found that points to this GPE.
- */
- switch (name[1]) {
- case 'L':
- type = ACPI_GPE_LEVEL_TRIGGERED;
- break;
-
- case 'E':
- type = ACPI_GPE_EDGE_TRIGGERED;
- break;
-
- default:
- /* Unknown method type, just ignore it! */
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "Ignoring unknown GPE method type: %s (name not of form _Lxx or _Exx)",
- name));
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Convert the last two characters of the name to the GPE Number */
-
- gpe_number = ACPI_STRTOUL(&name[2], NULL, 16);
- if (gpe_number == ACPI_UINT32_MAX) {
-
- /* Conversion failed; invalid method, just ignore it */
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)",
- name));
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Ensure that we have a valid GPE number for this GPE block */
-
- if ((gpe_number < gpe_block->block_base_number) ||
- (gpe_number >=
- (gpe_block->block_base_number +
- (gpe_block->register_count * 8)))) {
- /*
- * Not valid for this GPE block, just ignore it. However, it may be
- * valid for a different GPE block, since GPE0 and GPE1 methods both
- * appear under \_GPE.
- */
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Now we can add this information to the gpe_event_info block for use
- * during dispatch of this GPE. Default type is RUNTIME, although this may
- * change when the _PRW methods are executed later.
- */
- gpe_event_info =
- &gpe_block->event_info[gpe_number - gpe_block->block_base_number];
-
- gpe_event_info->flags = (u8)
- (type | ACPI_GPE_DISPATCH_METHOD | ACPI_GPE_TYPE_RUNTIME);
-
- gpe_event_info->dispatch.method_node =
- (struct acpi_namespace_node *)obj_handle;
-
- /* Update enable mask, but don't enable the HW GPE as of yet */
-
- status = acpi_ev_enable_gpe(gpe_event_info, FALSE);
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "Registered GPE method %s as GPE number 0x%.2X\n",
- name, gpe_number));
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_match_prw_and_gpe
- *
- * PARAMETERS: Callback from walk_namespace
- *
- * RETURN: Status. NOTE: We ignore errors so that the _PRW walk is
- * not aborted on a single _PRW failure.
- *
- * DESCRIPTION: Called from acpi_walk_namespace. Expects each object to be a
- * Device. Run the _PRW method. If present, extract the GPE
- * number and mark the GPE as a WAKE GPE.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
- u32 level, void *info, void **return_value)
-{
- struct acpi_gpe_walk_info *gpe_info = (void *)info;
- struct acpi_namespace_node *gpe_device;
- struct acpi_gpe_block_info *gpe_block;
- struct acpi_namespace_node *target_gpe_device;
- struct acpi_gpe_event_info *gpe_event_info;
- union acpi_operand_object *pkg_desc;
- union acpi_operand_object *obj_desc;
- u32 gpe_number;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe);
-
- /* Check for a _PRW method under this device */
-
- status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW,
- ACPI_BTYPE_PACKAGE, &pkg_desc);
- if (ACPI_FAILURE(status)) {
-
- /* Ignore all errors from _PRW, we don't want to abort the subsystem */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* The returned _PRW package must have at least two elements */
-
- if (pkg_desc->package.count < 2) {
- goto cleanup;
- }
-
- /* Extract pointers from the input context */
-
- gpe_device = gpe_info->gpe_device;
- gpe_block = gpe_info->gpe_block;
-
- /*
- * The _PRW object must return a package, we are only interested in the
- * first element
- */
- obj_desc = pkg_desc->package.elements[0];
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-
- /* Use FADT-defined GPE device (from definition of _PRW) */
-
- target_gpe_device = acpi_gbl_fadt_gpe_device;
-
- /* Integer is the GPE number in the FADT described GPE blocks */
-
- gpe_number = (u32) obj_desc->integer.value;
- } else if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
-
- /* Package contains a GPE reference and GPE number within a GPE block */
-
- if ((obj_desc->package.count < 2) ||
- (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[0]) !=
- ACPI_TYPE_LOCAL_REFERENCE)
- || (ACPI_GET_OBJECT_TYPE(obj_desc->package.elements[1]) !=
- ACPI_TYPE_INTEGER)) {
- goto cleanup;
- }
-
- /* Get GPE block reference and decode */
-
- target_gpe_device =
- obj_desc->package.elements[0]->reference.node;
- gpe_number = (u32) obj_desc->package.elements[1]->integer.value;
- } else {
- /* Unknown type, just ignore it */
-
- goto cleanup;
- }
-
- /*
- * Is this GPE within this block?
- *
- * TRUE if and only if these conditions are true:
- * 1) The GPE devices match.
- * 2) The GPE index(number) is within the range of the Gpe Block
- * associated with the GPE device.
- */
- if ((gpe_device == target_gpe_device) &&
- (gpe_number >= gpe_block->block_base_number) &&
- (gpe_number <
- gpe_block->block_base_number + (gpe_block->register_count * 8))) {
- gpe_event_info =
- &gpe_block->event_info[gpe_number -
- gpe_block->block_base_number];
-
- /* Mark GPE for WAKE-ONLY but WAKE_DISABLED */
-
- gpe_event_info->flags &=
- ~(ACPI_GPE_WAKE_ENABLED | ACPI_GPE_RUN_ENABLED);
-
- status =
- acpi_ev_set_gpe_type(gpe_event_info, ACPI_GPE_TYPE_WAKE);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- status =
- acpi_ev_update_gpe_enable_masks(gpe_event_info,
- ACPI_GPE_DISABLE);
- }
-
- cleanup:
- acpi_ut_remove_reference(pkg_desc);
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_get_gpe_xrupt_block
- *
- * PARAMETERS: interrupt_number - Interrupt for a GPE block
- *
- * RETURN: A GPE interrupt block
- *
- * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt
- * block per unique interrupt level used for GPEs. Should be
- * called only when the GPE lists are semaphore locked and not
- * subject to change.
- *
- ******************************************************************************/
-
-static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32
- interrupt_number)
-{
- struct acpi_gpe_xrupt_info *next_gpe_xrupt;
- struct acpi_gpe_xrupt_info *gpe_xrupt;
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block);
-
- /* No need for lock since we are not changing any list elements here */
-
- next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head;
- while (next_gpe_xrupt) {
- if (next_gpe_xrupt->interrupt_number == interrupt_number) {
- return_PTR(next_gpe_xrupt);
- }
-
- next_gpe_xrupt = next_gpe_xrupt->next;
- }
-
- /* Not found, must allocate a new xrupt descriptor */
-
- gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info));
- if (!gpe_xrupt) {
- return_PTR(NULL);
- }
-
- gpe_xrupt->interrupt_number = interrupt_number;
-
- /* Install new interrupt descriptor with spin lock */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- if (acpi_gbl_gpe_xrupt_list_head) {
- next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head;
- while (next_gpe_xrupt->next) {
- next_gpe_xrupt = next_gpe_xrupt->next;
- }
-
- next_gpe_xrupt->next = gpe_xrupt;
- gpe_xrupt->previous = next_gpe_xrupt;
- } else {
- acpi_gbl_gpe_xrupt_list_head = gpe_xrupt;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- /* Install new interrupt handler if not SCI_INT */
-
- if (interrupt_number != acpi_gbl_FADT.sci_interrupt) {
- status = acpi_os_install_interrupt_handler(interrupt_number,
- acpi_ev_gpe_xrupt_handler,
- gpe_xrupt);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not install GPE interrupt handler at level 0x%X",
- interrupt_number));
- return_PTR(NULL);
- }
- }
-
- return_PTR(gpe_xrupt);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_delete_gpe_xrupt
- *
- * PARAMETERS: gpe_xrupt - A GPE interrupt info block
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove and free a gpe_xrupt block. Remove an associated
- * interrupt handler if not the SCI interrupt.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt)
-{
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt);
-
- /* We never want to remove the SCI interrupt handler */
-
- if (gpe_xrupt->interrupt_number == acpi_gbl_FADT.sci_interrupt) {
- gpe_xrupt->gpe_block_list_head = NULL;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Disable this interrupt */
-
- status =
- acpi_os_remove_interrupt_handler(gpe_xrupt->interrupt_number,
- acpi_ev_gpe_xrupt_handler);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Unlink the interrupt block with lock */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- if (gpe_xrupt->previous) {
- gpe_xrupt->previous->next = gpe_xrupt->next;
- } else {
- /* No previous, update list head */
-
- acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next;
- }
-
- if (gpe_xrupt->next) {
- gpe_xrupt->next->previous = gpe_xrupt->previous;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- /* Free the block */
-
- ACPI_FREE(gpe_xrupt);
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_install_gpe_block
- *
- * PARAMETERS: gpe_block - New GPE block
- * interrupt_number - Xrupt to be associated with this
- * GPE block
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install new GPE block with mutex support
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
- u32 interrupt_number)
-{
- struct acpi_gpe_block_info *next_gpe_block;
- struct acpi_gpe_xrupt_info *gpe_xrupt_block;
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(ev_install_gpe_block);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number);
- if (!gpe_xrupt_block) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- /* Install the new block at the end of the list with lock */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- if (gpe_xrupt_block->gpe_block_list_head) {
- next_gpe_block = gpe_xrupt_block->gpe_block_list_head;
- while (next_gpe_block->next) {
- next_gpe_block = next_gpe_block->next;
- }
-
- next_gpe_block->next = gpe_block;
- gpe_block->previous = next_gpe_block;
- } else {
- gpe_xrupt_block->gpe_block_list_head = gpe_block;
- }
-
- gpe_block->xrupt_block = gpe_xrupt_block;
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- unlock_and_exit:
- status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_delete_gpe_block
- *
- * PARAMETERS: gpe_block - Existing GPE block
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a GPE block
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
-{
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(ev_install_gpe_block);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Disable all GPEs in this block */
-
- status =
- acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL);
-
- if (!gpe_block->previous && !gpe_block->next) {
-
- /* This is the last gpe_block on this interrupt */
-
- status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- } else {
- /* Remove the block on this interrupt with lock */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- if (gpe_block->previous) {
- gpe_block->previous->next = gpe_block->next;
- } else {
- gpe_block->xrupt_block->gpe_block_list_head =
- gpe_block->next;
- }
-
- if (gpe_block->next) {
- gpe_block->next->previous = gpe_block->previous;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- }
-
- acpi_current_gpe_count -=
- gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH;
-
- /* Free the gpe_block */
-
- ACPI_FREE(gpe_block->register_info);
- ACPI_FREE(gpe_block->event_info);
- ACPI_FREE(gpe_block);
-
- unlock_and_exit:
- status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_create_gpe_info_blocks
- *
- * PARAMETERS: gpe_block - New GPE block
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create the register_info and event_info blocks for this GPE block
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
-{
- struct acpi_gpe_register_info *gpe_register_info = NULL;
- struct acpi_gpe_event_info *gpe_event_info = NULL;
- struct acpi_gpe_event_info *this_event;
- struct acpi_gpe_register_info *this_register;
- u32 i;
- u32 j;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks);
-
- /* Allocate the GPE register information block */
-
- gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block->
- register_count *
- sizeof(struct
- acpi_gpe_register_info));
- if (!gpe_register_info) {
- ACPI_ERROR((AE_INFO,
- "Could not allocate the GpeRegisterInfo table"));
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /*
- * Allocate the GPE event_info block. There are eight distinct GPEs
- * per register. Initialization to zeros is sufficient.
- */
- gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block->
- register_count *
- ACPI_GPE_REGISTER_WIDTH) *
- sizeof(struct
- acpi_gpe_event_info));
- if (!gpe_event_info) {
- ACPI_ERROR((AE_INFO,
- "Could not allocate the GpeEventInfo table"));
- status = AE_NO_MEMORY;
- goto error_exit;
- }
-
- /* Save the new Info arrays in the GPE block */
-
- gpe_block->register_info = gpe_register_info;
- gpe_block->event_info = gpe_event_info;
-
- /*
- * Initialize the GPE Register and Event structures. A goal of these
- * tables is to hide the fact that there are two separate GPE register
- * sets in a given GPE hardware block, the status registers occupy the
- * first half, and the enable registers occupy the second half.
- */
- this_register = gpe_register_info;
- this_event = gpe_event_info;
-
- for (i = 0; i < gpe_block->register_count; i++) {
-
- /* Init the register_info for this GPE register (8 GPEs) */
-
- this_register->base_gpe_number =
- (u8) (gpe_block->block_base_number +
- (i * ACPI_GPE_REGISTER_WIDTH));
-
- this_register->status_address.address =
- gpe_block->block_address.address + i;
-
- this_register->enable_address.address =
- gpe_block->block_address.address + i +
- gpe_block->register_count;
-
- this_register->status_address.space_id =
- gpe_block->block_address.space_id;
- this_register->enable_address.space_id =
- gpe_block->block_address.space_id;
- this_register->status_address.bit_width =
- ACPI_GPE_REGISTER_WIDTH;
- this_register->enable_address.bit_width =
- ACPI_GPE_REGISTER_WIDTH;
- this_register->status_address.bit_offset = 0;
- this_register->enable_address.bit_offset = 0;
-
- /* Init the event_info for each GPE within this register */
-
- for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
- this_event->gpe_number =
- (u8) (this_register->base_gpe_number + j);
- this_event->register_info = this_register;
- this_event++;
- }
-
- /* Disable all GPEs within this register */
-
- status = acpi_write(0x00, &this_register->enable_address);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- /* Clear any pending GPE events within this register */
-
- status = acpi_write(0xFF, &this_register->status_address);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- this_register++;
- }
-
- return_ACPI_STATUS(AE_OK);
-
- error_exit:
- if (gpe_register_info) {
- ACPI_FREE(gpe_register_info);
- }
- if (gpe_event_info) {
- ACPI_FREE(gpe_event_info);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_create_gpe_block
- *
- * PARAMETERS: gpe_device - Handle to the parent GPE block
- * gpe_block_address - Address and space_iD
- * register_count - Number of GPE register pairs in the block
- * gpe_block_base_number - Starting GPE number for the block
- * interrupt_number - H/W interrupt for the block
- * return_gpe_block - Where the new block descriptor is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create and Install a block of GPE registers. All GPEs within
- * the block are disabled at exit.
- * Note: Assumes namespace is locked.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
- struct acpi_generic_address *gpe_block_address,
- u32 register_count,
- u8 gpe_block_base_number,
- u32 interrupt_number,
- struct acpi_gpe_block_info **return_gpe_block)
-{
- acpi_status status;
- struct acpi_gpe_block_info *gpe_block;
-
- ACPI_FUNCTION_TRACE(ev_create_gpe_block);
-
- if (!register_count) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Allocate a new GPE block */
-
- gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info));
- if (!gpe_block) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize the new GPE block */
-
- gpe_block->node = gpe_device;
- gpe_block->register_count = register_count;
- gpe_block->block_base_number = gpe_block_base_number;
-
- ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address,
- sizeof(struct acpi_generic_address));
-
- /*
- * Create the register_info and event_info sub-structures
- * Note: disables and clears all GPEs in the block
- */
- status = acpi_ev_create_gpe_info_blocks(gpe_block);
- if (ACPI_FAILURE(status)) {
- ACPI_FREE(gpe_block);
- return_ACPI_STATUS(status);
- }
-
- /* Install the new block in the global lists */
-
- status = acpi_ev_install_gpe_block(gpe_block, interrupt_number);
- if (ACPI_FAILURE(status)) {
- ACPI_FREE(gpe_block);
- return_ACPI_STATUS(status);
- }
-
- /* Find all GPE methods (_Lxx, _Exx) for this block */
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
- ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
- acpi_ev_save_method_info, gpe_block,
- NULL);
-
- /* Return the new block */
-
- if (return_gpe_block) {
- (*return_gpe_block) = gpe_block;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n",
- (u32) gpe_block->block_base_number,
- (u32) (gpe_block->block_base_number +
- ((gpe_block->register_count *
- ACPI_GPE_REGISTER_WIDTH) - 1)),
- gpe_device->name.ascii, gpe_block->register_count,
- interrupt_number));
-
- /* Update global count of currently available GPEs */
-
- acpi_current_gpe_count += register_count * ACPI_GPE_REGISTER_WIDTH;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_initialize_gpe_block
- *
- * PARAMETERS: gpe_device - Handle to the parent GPE block
- * gpe_block - Gpe Block info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize and enable a GPE block. First find and run any
- * _PRT methods associated with the block, then enable the
- * appropriate GPEs.
- * Note: Assumes namespace is locked.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
- struct acpi_gpe_block_info *gpe_block)
-{
- acpi_status status;
- struct acpi_gpe_event_info *gpe_event_info;
- struct acpi_gpe_walk_info gpe_info;
- u32 wake_gpe_count;
- u32 gpe_enabled_count;
- u32 i;
- u32 j;
-
- ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
-
- /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */
-
- if (!gpe_block) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Runtime option: Should wake GPEs be enabled at runtime? The default
- * is no, they should only be enabled just as the machine goes to sleep.
- */
- if (acpi_gbl_leave_wake_gpes_disabled) {
- /*
- * Differentiate runtime vs wake GPEs, via the _PRW control methods.
- * Each GPE that has one or more _PRWs that reference it is by
- * definition a wake GPE and will not be enabled while the machine
- * is running.
- */
- gpe_info.gpe_block = gpe_block;
- gpe_info.gpe_device = gpe_device;
-
- status =
- acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
- acpi_ev_match_prw_and_gpe, &gpe_info,
- NULL);
- }
-
- /*
- * Enable all GPEs in this block that have these attributes:
- * 1) are "runtime" or "run/wake" GPEs, and
- * 2) have a corresponding _Lxx or _Exx method
- *
- * Any other GPEs within this block must be enabled via the acpi_enable_gpe()
- * external interface.
- */
- wake_gpe_count = 0;
- gpe_enabled_count = 0;
-
- for (i = 0; i < gpe_block->register_count; i++) {
- for (j = 0; j < 8; j++) {
-
- /* Get the info block for this particular GPE */
-
- gpe_event_info =
- &gpe_block->
- event_info[((acpi_size) i *
- ACPI_GPE_REGISTER_WIDTH) + j];
-
- if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
- ACPI_GPE_DISPATCH_METHOD)
- && (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) {
- gpe_enabled_count++;
- }
-
- if (gpe_event_info->flags & ACPI_GPE_TYPE_WAKE) {
- wake_gpe_count++;
- }
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "Found %u Wake, Enabled %u Runtime GPEs in this block\n",
- wake_gpe_count, gpe_enabled_count));
-
- /* Enable all valid runtime GPEs found above */
-
- status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block, NULL);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p",
- gpe_block));
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_gpe_initialize
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize the GPE data structures
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_gpe_initialize(void)
-{
- u32 register_count0 = 0;
- u32 register_count1 = 0;
- u32 gpe_number_max = 0;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_gpe_initialize);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Initialize the GPE Block(s) defined in the FADT
- *
- * Why the GPE register block lengths are divided by 2: From the ACPI Spec,
- * section "General-Purpose Event Registers", we have:
- *
- * "Each register block contains two registers of equal length
- * GPEx_STS and GPEx_EN (where x is 0 or 1). The length of the
- * GPE0_STS and GPE0_EN registers is equal to half the GPE0_LEN
- * The length of the GPE1_STS and GPE1_EN registers is equal to
- * half the GPE1_LEN. If a generic register block is not supported
- * then its respective block pointer and block length values in the
- * FADT table contain zeros. The GPE0_LEN and GPE1_LEN do not need
- * to be the same size."
- */
-
- /*
- * Determine the maximum GPE number for this machine.
- *
- * Note: both GPE0 and GPE1 are optional, and either can exist without
- * the other.
- *
- * If EITHER the register length OR the block address are zero, then that
- * particular block is not supported.
- */
- if (acpi_gbl_FADT.gpe0_block_length &&
- acpi_gbl_FADT.xgpe0_block.address) {
-
- /* GPE block 0 exists (has both length and address > 0) */
-
- register_count0 = (u16) (acpi_gbl_FADT.gpe0_block_length / 2);
-
- gpe_number_max =
- (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1;
-
- /* Install GPE Block 0 */
-
- status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
- &acpi_gbl_FADT.xgpe0_block,
- register_count0, 0,
- acpi_gbl_FADT.sci_interrupt,
- &acpi_gbl_gpe_fadt_blocks[0]);
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not create GPE Block 0"));
- }
- }
-
- if (acpi_gbl_FADT.gpe1_block_length &&
- acpi_gbl_FADT.xgpe1_block.address) {
-
- /* GPE block 1 exists (has both length and address > 0) */
-
- register_count1 = (u16) (acpi_gbl_FADT.gpe1_block_length / 2);
-
- /* Check for GPE0/GPE1 overlap (if both banks exist) */
-
- if ((register_count0) &&
- (gpe_number_max >= acpi_gbl_FADT.gpe1_base)) {
- ACPI_ERROR((AE_INFO,
- "GPE0 block (GPE 0 to %d) overlaps the GPE1 block (GPE %d to %d) - Ignoring GPE1",
- gpe_number_max, acpi_gbl_FADT.gpe1_base,
- acpi_gbl_FADT.gpe1_base +
- ((register_count1 *
- ACPI_GPE_REGISTER_WIDTH) - 1)));
-
- /* Ignore GPE1 block by setting the register count to zero */
-
- register_count1 = 0;
- } else {
- /* Install GPE Block 1 */
-
- status =
- acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
- &acpi_gbl_FADT.xgpe1_block,
- register_count1,
- acpi_gbl_FADT.gpe1_base,
- acpi_gbl_FADT.
- sci_interrupt,
- &acpi_gbl_gpe_fadt_blocks
- [1]);
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not create GPE Block 1"));
- }
-
- /*
- * GPE0 and GPE1 do not have to be contiguous in the GPE number
- * space. However, GPE0 always starts at GPE number zero.
- */
- gpe_number_max = acpi_gbl_FADT.gpe1_base +
- ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1);
- }
- }
-
- /* Exit if there are no GPE registers */
-
- if ((register_count0 + register_count1) == 0) {
-
- /* GPEs are not required by ACPI, this is OK */
-
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "There are no GPE blocks defined in the FADT\n"));
- status = AE_OK;
- goto cleanup;
- }
-
- /* Check for Max GPE number out-of-range */
-
- if (gpe_number_max > ACPI_GPE_MAX) {
- ACPI_ERROR((AE_INFO,
- "Maximum GPE number from FADT is too large: 0x%X",
- gpe_number_max));
- status = AE_BAD_VALUE;
- goto cleanup;
- }
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evmisc - Miscellaneous event manager support functions
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evmisc")
-
-/* Local prototypes */
-static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context);
-
-static u32 acpi_ev_global_lock_handler(void *context);
-
-static acpi_status acpi_ev_remove_global_lock_handler(void);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_is_notify_object
- *
- * PARAMETERS: Node - Node to check
- *
- * RETURN: TRUE if notifies allowed on this object
- *
- * DESCRIPTION: Check type of node for a object that supports notifies.
- *
- * TBD: This could be replaced by a flag bit in the node.
- *
- ******************************************************************************/
-
-u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node)
-{
- switch (node->type) {
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
- /*
- * These are the ONLY objects that can receive ACPI notifications
- */
- return (TRUE);
-
- default:
- return (FALSE);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_queue_notify_request
- *
- * PARAMETERS: Node - NS node for the notified object
- * notify_value - Value from the Notify() request
- *
- * RETURN: Status
- *
- * DESCRIPTION: Dispatch a device notification event to a previously
- * installed handler.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
- u32 notify_value)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *handler_obj = NULL;
- union acpi_generic_state *notify_info;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_NAME(ev_queue_notify_request);
-
- /*
- * For value 3 (Ejection Request), some device method may need to be run.
- * For value 2 (Device Wake) if _PRW exists, the _PS0 method may need
- * to be run.
- * For value 0x80 (Status Change) on the power button or sleep button,
- * initiate soft-off or sleep operation?
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Dispatching Notify on [%4.4s] Node %p Value 0x%2.2X (%s)\n",
- acpi_ut_get_node_name(node), node, notify_value,
- acpi_ut_get_notify_name(notify_value)));
-
- /* Get the notify object attached to the NS Node */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (obj_desc) {
-
- /* We have the notify object, Get the right handler */
-
- switch (node->type) {
-
- /* Notify allowed only on these types */
-
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_THERMAL:
- case ACPI_TYPE_PROCESSOR:
-
- if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
- handler_obj =
- obj_desc->common_notify.system_notify;
- } else {
- handler_obj =
- obj_desc->common_notify.device_notify;
- }
- break;
-
- default:
-
- /* All other types are not supported */
-
- return (AE_TYPE);
- }
- }
-
- /*
- * If there is any handler to run, schedule the dispatcher.
- * Check for:
- * 1) Global system notify handler
- * 2) Global device notify handler
- * 3) Per-device notify handler
- */
- if ((acpi_gbl_system_notify.handler
- && (notify_value <= ACPI_MAX_SYS_NOTIFY))
- || (acpi_gbl_device_notify.handler
- && (notify_value > ACPI_MAX_SYS_NOTIFY)) || handler_obj) {
- notify_info = acpi_ut_create_generic_state();
- if (!notify_info) {
- return (AE_NO_MEMORY);
- }
-
- if (!handler_obj) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Executing system notify handler for Notify (%4.4s, %X) node %p\n",
- acpi_ut_get_node_name(node),
- notify_value, node));
- }
-
- notify_info->common.descriptor_type =
- ACPI_DESC_TYPE_STATE_NOTIFY;
- notify_info->notify.node = node;
- notify_info->notify.value = (u16) notify_value;
- notify_info->notify.handler_obj = handler_obj;
-
- status =
- acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
- notify_info);
- if (ACPI_FAILURE(status)) {
- acpi_ut_delete_generic_state(notify_info);
- }
- } else {
- /* There is no notify handler (per-device or system) for this device */
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "No notify handler for Notify (%4.4s, %X) node %p\n",
- acpi_ut_get_node_name(node), notify_value,
- node));
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_notify_dispatch
- *
- * PARAMETERS: Context - To be passed to the notify handler
- *
- * RETURN: None.
- *
- * DESCRIPTION: Dispatch a device notification event to a previously
- * installed handler.
- *
- ******************************************************************************/
-
-static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context)
-{
- union acpi_generic_state *notify_info =
- (union acpi_generic_state *)context;
- acpi_notify_handler global_handler = NULL;
- void *global_context = NULL;
- union acpi_operand_object *handler_obj;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * We will invoke a global notify handler if installed. This is done
- * _before_ we invoke the per-device handler attached to the device.
- */
- if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) {
-
- /* Global system notification handler */
-
- if (acpi_gbl_system_notify.handler) {
- global_handler = acpi_gbl_system_notify.handler;
- global_context = acpi_gbl_system_notify.context;
- }
- } else {
- /* Global driver notification handler */
-
- if (acpi_gbl_device_notify.handler) {
- global_handler = acpi_gbl_device_notify.handler;
- global_context = acpi_gbl_device_notify.context;
- }
- }
-
- /* Invoke the system handler first, if present */
-
- if (global_handler) {
- global_handler(notify_info->notify.node,
- notify_info->notify.value, global_context);
- }
-
- /* Now invoke the per-device handler, if present */
-
- handler_obj = notify_info->notify.handler_obj;
- if (handler_obj) {
- handler_obj->notify.handler(notify_info->notify.node,
- notify_info->notify.value,
- handler_obj->notify.context);
- }
-
- /* All done with the info object */
-
- acpi_ut_delete_generic_state(notify_info);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_global_lock_handler
- *
- * PARAMETERS: Context - From thread interface, not used
- *
- * RETURN: ACPI_INTERRUPT_HANDLED
- *
- * DESCRIPTION: Invoked directly from the SCI handler when a global lock
- * release interrupt occurs. Attempt to acquire the global lock,
- * if successful, signal the thread waiting for the lock.
- *
- * NOTE: Assumes that the semaphore can be signaled from interrupt level. If
- * this is not possible for some reason, a separate thread will have to be
- * scheduled to do this.
- *
- ******************************************************************************/
-
-static u32 acpi_ev_global_lock_handler(void *context)
-{
- u8 acquired = FALSE;
-
- /*
- * Attempt to get the lock.
- *
- * If we don't get it now, it will be marked pending and we will
- * take another interrupt when it becomes free.
- */
- ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);
- if (acquired) {
-
- /* Got the lock, now wake all threads waiting for it */
-
- acpi_gbl_global_lock_acquired = TRUE;
- /* Send a unit to the semaphore */
-
- if (ACPI_FAILURE
- (acpi_os_signal_semaphore
- (acpi_gbl_global_lock_semaphore, 1))) {
- ACPI_ERROR((AE_INFO,
- "Could not signal Global Lock semaphore"));
- }
- }
-
- return (ACPI_INTERRUPT_HANDLED);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_init_global_lock_handler
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install a handler for the global lock release event
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_init_global_lock_handler(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_init_global_lock_handler);
-
- /* Attempt installation of the global lock handler */
-
- status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL,
- acpi_ev_global_lock_handler,
- NULL);
-
- /*
- * If the global lock does not exist on this platform, the attempt to
- * enable GBL_STATUS will fail (the GBL_ENABLE bit will not stick).
- * Map to AE_OK, but mark global lock as not present. Any attempt to
- * actually use the global lock will be flagged with an error.
- */
- if (status == AE_NO_HARDWARE_RESPONSE) {
- ACPI_ERROR((AE_INFO,
- "No response from Global Lock hardware, disabling lock"));
-
- acpi_gbl_global_lock_present = FALSE;
- return_ACPI_STATUS(AE_OK);
- }
-
- acpi_gbl_global_lock_present = TRUE;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_remove_global_lock_handler
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove the handler for the Global Lock
- *
- ******************************************************************************/
-
-static acpi_status acpi_ev_remove_global_lock_handler(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_remove_global_lock_handler);
-
- acpi_gbl_global_lock_present = FALSE;
- status = acpi_remove_fixed_event_handler(ACPI_EVENT_GLOBAL,
- acpi_ev_global_lock_handler);
-
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_ev_acquire_global_lock
- *
- * PARAMETERS: Timeout - Max time to wait for the lock, in millisec.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Attempt to gain ownership of the Global Lock.
- *
- * MUTEX: Interpreter must be locked
- *
- * Note: The original implementation allowed multiple threads to "acquire" the
- * Global Lock, and the OS would hold the lock until the last thread had
- * released it. However, this could potentially starve the BIOS out of the
- * lock, especially in the case where there is a tight handshake between the
- * Embedded Controller driver and the BIOS. Therefore, this implementation
- * allows only one thread to acquire the HW Global Lock at a time, and makes
- * the global lock appear as a standard mutex on the OS side.
- *
- *****************************************************************************/
-static acpi_thread_id acpi_ev_global_lock_thread_id;
-static int acpi_ev_global_lock_acquired;
-
-acpi_status acpi_ev_acquire_global_lock(u16 timeout)
-{
- acpi_status status = AE_OK;
- u8 acquired = FALSE;
-
- ACPI_FUNCTION_TRACE(ev_acquire_global_lock);
-
- /*
- * Only one thread can acquire the GL at a time, the global_lock_mutex
- * enforces this. This interface releases the interpreter if we must wait.
- */
- status = acpi_ex_system_wait_mutex(
- acpi_gbl_global_lock_mutex->mutex.os_mutex, 0);
- if (status == AE_TIME) {
- if (acpi_ev_global_lock_thread_id == acpi_os_get_thread_id()) {
- acpi_ev_global_lock_acquired++;
- return AE_OK;
- }
- }
-
- if (ACPI_FAILURE(status)) {
- status = acpi_ex_system_wait_mutex(
- acpi_gbl_global_lock_mutex->mutex.os_mutex,
- timeout);
- }
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- acpi_ev_global_lock_thread_id = acpi_os_get_thread_id();
- acpi_ev_global_lock_acquired++;
-
- /*
- * Update the global lock handle and check for wraparound. The handle is
- * only used for the external global lock interfaces, but it is updated
- * here to properly handle the case where a single thread may acquire the
- * lock via both the AML and the acpi_acquire_global_lock interfaces. The
- * handle is therefore updated on the first acquire from a given thread
- * regardless of where the acquisition request originated.
- */
- acpi_gbl_global_lock_handle++;
- if (acpi_gbl_global_lock_handle == 0) {
- acpi_gbl_global_lock_handle = 1;
- }
-
- /*
- * Make sure that a global lock actually exists. If not, just treat the
- * lock as a standard mutex.
- */
- if (!acpi_gbl_global_lock_present) {
- acpi_gbl_global_lock_acquired = TRUE;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Attempt to acquire the actual hardware lock */
-
- ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_FACS, acquired);
- if (acquired) {
-
- /* We got the lock */
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Acquired hardware Global Lock\n"));
-
- acpi_gbl_global_lock_acquired = TRUE;
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Did not get the lock. The pending bit was set above, and we must now
- * wait until we get the global lock released interrupt.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Waiting for hardware Global Lock\n"));
-
- /*
- * Wait for handshake with the global lock interrupt handler.
- * This interface releases the interpreter if we must wait.
- */
- status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,
- ACPI_WAIT_FOREVER);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_release_global_lock
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Releases ownership of the Global Lock.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_release_global_lock(void)
-{
- u8 pending = FALSE;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ev_release_global_lock);
-
- /* Lock must be already acquired */
-
- if (!acpi_gbl_global_lock_acquired) {
- ACPI_WARNING((AE_INFO,
- "Cannot release the ACPI Global Lock, it has not been acquired"));
- return_ACPI_STATUS(AE_NOT_ACQUIRED);
- }
-
- acpi_ev_global_lock_acquired--;
- if (acpi_ev_global_lock_acquired > 0) {
- return AE_OK;
- }
-
- if (acpi_gbl_global_lock_present) {
-
- /* Allow any thread to release the lock */
-
- ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_FACS, pending);
-
- /*
- * If the pending bit was set, we must write GBL_RLS to the control
- * register
- */
- if (pending) {
- status =
- acpi_set_register(ACPI_BITREG_GLOBAL_LOCK_RELEASE,
- 1);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Released hardware Global Lock\n"));
- }
-
- acpi_gbl_global_lock_acquired = FALSE;
-
- /* Release the local GL mutex */
- acpi_ev_global_lock_thread_id = NULL;
- acpi_ev_global_lock_acquired = 0;
- acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex);
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_ev_terminate
- *
- * PARAMETERS: none
- *
- * RETURN: none
- *
- * DESCRIPTION: Disable events and free memory allocated for table storage.
- *
- ******************************************************************************/
-
-void acpi_ev_terminate(void)
-{
- u32 i;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_terminate);
-
- if (acpi_gbl_events_initialized) {
- /*
- * Disable all event-related functionality. In all cases, on error,
- * print a message but obviously we don't abort.
- */
-
- /* Disable all fixed events */
-
- for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
- status = acpi_disable_event(i, 0);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not disable fixed event %d",
- (u32) i));
- }
- }
-
- /* Disable all GPEs in all GPE blocks */
-
- status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
-
- /* Remove SCI handler */
-
- status = acpi_ev_remove_sci_handler();
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO, "Could not remove SCI handler"));
- }
-
- status = acpi_ev_remove_global_lock_handler();
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not remove Global Lock handler"));
- }
- }
-
- /* Deallocate all handler objects installed within GPE info structs */
-
- status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL);
-
- /* Return to original mode if necessary */
-
- if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) {
- status = acpi_disable();
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "AcpiDisable failed"));
- }
- }
- return_VOID;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evregion - ACPI address_space (op_region) handler dispatch
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evregion")
-
-/* Local prototypes */
-static acpi_status
-acpi_ev_reg_run(acpi_handle obj_handle,
- u32 level, void *context, void **return_value);
-
-static acpi_status
-acpi_ev_install_handler(acpi_handle obj_handle,
- u32 level, void *context, void **return_value);
-
-/* These are the address spaces that will get default handlers */
-
-#define ACPI_NUM_DEFAULT_SPACES 4
-
-static u8 acpi_gbl_default_address_spaces[ACPI_NUM_DEFAULT_SPACES] = {
- ACPI_ADR_SPACE_SYSTEM_MEMORY,
- ACPI_ADR_SPACE_SYSTEM_IO,
- ACPI_ADR_SPACE_PCI_CONFIG,
- ACPI_ADR_SPACE_DATA_TABLE
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_install_region_handlers
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Installs the core subsystem default address space handlers.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_install_region_handlers(void)
-{
- acpi_status status;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ev_install_region_handlers);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * All address spaces (PCI Config, EC, SMBus) are scope dependent and
- * registration must occur for a specific device.
- *
- * In the case of the system memory and IO address spaces there is
- * currently no device associated with the address space. For these we
- * use the root.
- *
- * We install the default PCI config space handler at the root so that
- * this space is immediately available even though the we have not
- * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
- * specification which states that the PCI config space must be always
- * available -- even though we are nowhere near ready to find the PCI root
- * buses at this point.
- *
- * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
- * has already been installed (via acpi_install_address_space_handler).
- * Similar for AE_SAME_HANDLER.
- */
- for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
- status = acpi_ev_install_space_handler(acpi_gbl_root_node,
- acpi_gbl_default_address_spaces
- [i],
- ACPI_DEFAULT_HANDLER,
- NULL, NULL);
- switch (status) {
- case AE_OK:
- case AE_SAME_HANDLER:
- case AE_ALREADY_EXISTS:
-
- /* These exceptions are all OK */
-
- status = AE_OK;
- break;
-
- default:
-
- goto unlock_and_exit;
- }
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_initialize_op_regions
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute _REG methods for all Operation Regions that have
- * an installed default region handler.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_initialize_op_regions(void)
-{
- acpi_status status;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ev_initialize_op_regions);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Run the _REG methods for op_regions in each default address space */
-
- for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) {
- /*
- * TBD: Make sure handler is the DEFAULT handler, otherwise
- * _REG will have already been run.
- */
- status = acpi_ev_execute_reg_methods(acpi_gbl_root_node,
- acpi_gbl_default_address_spaces
- [i]);
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_execute_reg_method
- *
- * PARAMETERS: region_obj - Region object
- * Function - Passed to _REG: On (1) or Off (0)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute _REG method for a region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
-{
- struct acpi_evaluate_info *info;
- union acpi_operand_object *args[3];
- union acpi_operand_object *region_obj2;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_execute_reg_method);
-
- region_obj2 = acpi_ns_get_secondary_object(region_obj);
- if (!region_obj2) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- if (region_obj2->extra.method_REG == NULL) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Allocate and initialize the evaluation information block */
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- info->prefix_node = region_obj2->extra.method_REG;
- info->pathname = NULL;
- info->parameters = args;
- info->flags = ACPI_IGNORE_RETURN_VALUE;
-
- /*
- * The _REG method has two arguments:
- *
- * Arg0 - Integer:
- * Operation region space ID Same value as region_obj->Region.space_id
- *
- * Arg1 - Integer:
- * connection status 1 for connecting the handler, 0 for disconnecting
- * the handler (Passed as a parameter)
- */
- args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!args[0]) {
- status = AE_NO_MEMORY;
- goto cleanup1;
- }
-
- args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!args[1]) {
- status = AE_NO_MEMORY;
- goto cleanup2;
- }
-
- /* Setup the parameter objects */
-
- args[0]->integer.value = region_obj->region.space_id;
- args[1]->integer.value = function;
- args[2] = NULL;
-
- /* Execute the method, no return value */
-
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_METHOD, info->prefix_node, NULL));
-
- status = acpi_ns_evaluate(info);
- acpi_ut_remove_reference(args[1]);
-
- cleanup2:
- acpi_ut_remove_reference(args[0]);
-
- cleanup1:
- ACPI_FREE(info);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_address_space_dispatch
- *
- * PARAMETERS: region_obj - Internal region object
- * Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, 32, or 64)
- * Value - Pointer to in or out value, must be
- * full 64-bit acpi_integer
- *
- * RETURN: Status
- *
- * DESCRIPTION: Dispatch an address space or operation region access to
- * a previously installed handler.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
- u32 function,
- acpi_physical_address address,
- u32 bit_width, acpi_integer * value)
-{
- acpi_status status;
- acpi_adr_space_handler handler;
- acpi_adr_space_setup region_setup;
- union acpi_operand_object *handler_desc;
- union acpi_operand_object *region_obj2;
- void *region_context = NULL;
-
- ACPI_FUNCTION_TRACE(ev_address_space_dispatch);
-
- region_obj2 = acpi_ns_get_secondary_object(region_obj);
- if (!region_obj2) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Ensure that there is a handler associated with this region */
-
- handler_desc = region_obj->region.handler;
- if (!handler_desc) {
- ACPI_ERROR((AE_INFO,
- "No handler for Region [%4.4s] (%p) [%s]",
- acpi_ut_get_node_name(region_obj->region.node),
- region_obj,
- acpi_ut_get_region_name(region_obj->region.
- space_id)));
-
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /*
- * It may be the case that the region has never been initialized.
- * Some types of regions require special init code
- */
- if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
-
- /* This region has not been initialized yet, do it */
-
- region_setup = handler_desc->address_space.setup;
- if (!region_setup) {
-
- /* No initialization routine, exit with error */
-
- ACPI_ERROR((AE_INFO,
- "No init routine for region(%p) [%s]",
- region_obj,
- acpi_ut_get_region_name(region_obj->region.
- space_id)));
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /*
- * We must exit the interpreter because the region setup will
- * potentially execute control methods (for example, the _REG method
- * for this region)
- */
- acpi_ex_exit_interpreter();
-
- status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
- handler_desc->address_space.context,
- ®ion_context);
-
- /* Re-enter the interpreter */
-
- acpi_ex_enter_interpreter();
-
- /* Check for failure of the Region Setup */
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "During region initialization: [%s]",
- acpi_ut_get_region_name(region_obj->
- region.
- space_id)));
- return_ACPI_STATUS(status);
- }
-
- /* Region initialization may have been completed by region_setup */
-
- if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
- region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
-
- if (region_obj2->extra.region_context) {
-
- /* The handler for this region was already installed */
-
- ACPI_FREE(region_context);
- } else {
- /*
- * Save the returned context for use in all accesses to
- * this particular region
- */
- region_obj2->extra.region_context =
- region_context;
- }
- }
- }
-
- /* We have everything we need, we can invoke the address space handler */
-
- handler = handler_desc->address_space.handler;
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Handler %p (@%p) Address %8.8X%8.8X [%s]\n",
- ®ion_obj->region.handler->address_space, handler,
- ACPI_FORMAT_NATIVE_UINT(address),
- acpi_ut_get_region_name(region_obj->region.
- space_id)));
-
- if (!(handler_desc->address_space.handler_flags &
- ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
- /*
- * For handlers other than the default (supplied) handlers, we must
- * exit the interpreter because the handler *might* block -- we don't
- * know what it will do, so we can't hold the lock on the intepreter.
- */
- acpi_ex_exit_interpreter();
- }
-
- /* Call the handler */
-
- status = handler(function, address, bit_width, value,
- handler_desc->address_space.context,
- region_obj2->extra.region_context);
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Returned by Handler for [%s]",
- acpi_ut_get_region_name(region_obj->region.
- space_id)));
- }
-
- if (!(handler_desc->address_space.handler_flags &
- ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) {
- /*
- * We just returned from a non-default handler, we must re-enter the
- * interpreter
- */
- acpi_ex_enter_interpreter();
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_detach_region
- *
- * PARAMETERS: region_obj - Region Object
- * acpi_ns_is_locked - Namespace Region Already Locked?
- *
- * RETURN: None
- *
- * DESCRIPTION: Break the association between the handler and the region
- * this is a two way association.
- *
- ******************************************************************************/
-
-void
-acpi_ev_detach_region(union acpi_operand_object *region_obj,
- u8 acpi_ns_is_locked)
-{
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object **last_obj_ptr;
- acpi_adr_space_setup region_setup;
- void **region_context;
- union acpi_operand_object *region_obj2;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_detach_region);
-
- region_obj2 = acpi_ns_get_secondary_object(region_obj);
- if (!region_obj2) {
- return_VOID;
- }
- region_context = ®ion_obj2->extra.region_context;
-
- /* Get the address handler from the region object */
-
- handler_obj = region_obj->region.handler;
- if (!handler_obj) {
-
- /* This region has no handler, all done */
-
- return_VOID;
- }
-
- /* Find this region in the handler's list */
-
- obj_desc = handler_obj->address_space.region_list;
- last_obj_ptr = &handler_obj->address_space.region_list;
-
- while (obj_desc) {
-
- /* Is this the correct Region? */
-
- if (obj_desc == region_obj) {
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Removing Region %p from address handler %p\n",
- region_obj, handler_obj));
-
- /* This is it, remove it from the handler's list */
-
- *last_obj_ptr = obj_desc->region.next;
- obj_desc->region.next = NULL; /* Must clear field */
-
- if (acpi_ns_is_locked) {
- status =
- acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
- }
-
- /* Now stop region accesses by executing the _REG method */
-
- status = acpi_ev_execute_reg_method(region_obj, 0);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "from region _REG, [%s]",
- acpi_ut_get_region_name
- (region_obj->region.space_id)));
- }
-
- if (acpi_ns_is_locked) {
- status =
- acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
- }
-
- /*
- * If the region has been activated, call the setup handler with
- * the deactivate notification
- */
- if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
- region_setup = handler_obj->address_space.setup;
- status =
- region_setup(region_obj,
- ACPI_REGION_DEACTIVATE,
- handler_obj->address_space.
- context, region_context);
-
- /* Init routine may fail, Just ignore errors */
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "from region handler - deactivate, [%s]",
- acpi_ut_get_region_name
- (region_obj->region.
- space_id)));
- }
-
- region_obj->region.flags &=
- ~(AOPOBJ_SETUP_COMPLETE);
- }
-
- /*
- * Remove handler reference in the region
- *
- * NOTE: this doesn't mean that the region goes away, the region
- * is just inaccessible as indicated to the _REG method
- *
- * If the region is on the handler's list, this must be the
- * region's handler
- */
- region_obj->region.handler = NULL;
- acpi_ut_remove_reference(handler_obj);
-
- return_VOID;
- }
-
- /* Walk the linked list of handlers */
-
- last_obj_ptr = &obj_desc->region.next;
- obj_desc = obj_desc->region.next;
- }
-
- /* If we get here, the region was not in the handler's region list */
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Cannot remove region %p from address handler %p\n",
- region_obj, handler_obj));
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_attach_region
- *
- * PARAMETERS: handler_obj - Handler Object
- * region_obj - Region Object
- * acpi_ns_is_locked - Namespace Region Already Locked?
- *
- * RETURN: None
- *
- * DESCRIPTION: Create the association between the handler and the region
- * this is a two way association.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_attach_region(union acpi_operand_object *handler_obj,
- union acpi_operand_object *region_obj,
- u8 acpi_ns_is_locked)
-{
-
- ACPI_FUNCTION_TRACE(ev_attach_region);
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Adding Region [%4.4s] %p to address handler %p [%s]\n",
- acpi_ut_get_node_name(region_obj->region.node),
- region_obj, handler_obj,
- acpi_ut_get_region_name(region_obj->region.
- space_id)));
-
- /* Link this region to the front of the handler's list */
-
- region_obj->region.next = handler_obj->address_space.region_list;
- handler_obj->address_space.region_list = region_obj;
-
- /* Install the region's handler */
-
- if (region_obj->region.handler) {
- return_ACPI_STATUS(AE_ALREADY_EXISTS);
- }
-
- region_obj->region.handler = handler_obj;
- acpi_ut_add_reference(handler_obj);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_install_handler
- *
- * PARAMETERS: walk_namespace callback
- *
- * DESCRIPTION: This routine installs an address handler into objects that are
- * of type Region or Device.
- *
- * If the Object is a Device, and the device has a handler of
- * the same type then the search is terminated in that branch.
- *
- * This is because the existing handler is closer in proximity
- * to any more regions than the one we are trying to install.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_install_handler(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *next_handler_obj;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(ev_install_handler);
-
- handler_obj = (union acpi_operand_object *)context;
-
- /* Parameter validation */
-
- if (!handler_obj) {
- return (AE_OK);
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(obj_handle);
- if (!node) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * We only care about regions and objects that are allowed to have
- * address space handlers
- */
- if ((node->type != ACPI_TYPE_DEVICE) &&
- (node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
- return (AE_OK);
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
-
- /* No object, just exit */
-
- return (AE_OK);
- }
-
- /* Devices are handled different than regions */
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) {
-
- /* Check if this Device already has a handler for this address space */
-
- next_handler_obj = obj_desc->device.handler;
- while (next_handler_obj) {
-
- /* Found a handler, is it for the same address space? */
-
- if (next_handler_obj->address_space.space_id ==
- handler_obj->address_space.space_id) {
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Found handler for region [%s] in device %p(%p) handler %p\n",
- acpi_ut_get_region_name
- (handler_obj->address_space.
- space_id), obj_desc,
- next_handler_obj,
- handler_obj));
-
- /*
- * Since the object we found it on was a device, then it
- * means that someone has already installed a handler for
- * the branch of the namespace from this device on. Just
- * bail out telling the walk routine to not traverse this
- * branch. This preserves the scoping rule for handlers.
- */
- return (AE_CTRL_DEPTH);
- }
-
- /* Walk the linked list of handlers attached to this device */
-
- next_handler_obj = next_handler_obj->address_space.next;
- }
-
- /*
- * As long as the device didn't have a handler for this space we
- * don't care about it. We just ignore it and proceed.
- */
- return (AE_OK);
- }
-
- /* Object is a Region */
-
- if (obj_desc->region.space_id != handler_obj->address_space.space_id) {
-
- /* This region is for a different address space, just ignore it */
-
- return (AE_OK);
- }
-
- /*
- * Now we have a region and it is for the handler's address space type.
- *
- * First disconnect region for any previous handler (if any)
- */
- acpi_ev_detach_region(obj_desc, FALSE);
-
- /* Connect the region to the new handler */
-
- status = acpi_ev_attach_region(handler_obj, obj_desc, FALSE);
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_install_space_handler
- *
- * PARAMETERS: Node - Namespace node for the device
- * space_id - The address space ID
- * Handler - Address of the handler
- * Setup - Address of the setup function
- * Context - Value passed to the handler on each access
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install a handler for all op_regions of a given space_id.
- * Assumes namespace is locked
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_install_space_handler(struct acpi_namespace_node * node,
- acpi_adr_space_type space_id,
- acpi_adr_space_handler handler,
- acpi_adr_space_setup setup, void *context)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *handler_obj;
- acpi_status status;
- acpi_object_type type;
- u8 flags = 0;
-
- ACPI_FUNCTION_TRACE(ev_install_space_handler);
-
- /*
- * This registration is valid for only the types below and the root. This
- * is where the default handlers get placed.
- */
- if ((node->type != ACPI_TYPE_DEVICE) &&
- (node->type != ACPI_TYPE_PROCESSOR) &&
- (node->type != ACPI_TYPE_THERMAL) && (node != acpi_gbl_root_node)) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- if (handler == ACPI_DEFAULT_HANDLER) {
- flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
-
- switch (space_id) {
- case ACPI_ADR_SPACE_SYSTEM_MEMORY:
- handler = acpi_ex_system_memory_space_handler;
- setup = acpi_ev_system_memory_region_setup;
- break;
-
- case ACPI_ADR_SPACE_SYSTEM_IO:
- handler = acpi_ex_system_io_space_handler;
- setup = acpi_ev_io_space_region_setup;
- break;
-
- case ACPI_ADR_SPACE_PCI_CONFIG:
- handler = acpi_ex_pci_config_space_handler;
- setup = acpi_ev_pci_config_region_setup;
- break;
-
- case ACPI_ADR_SPACE_CMOS:
- handler = acpi_ex_cmos_space_handler;
- setup = acpi_ev_cmos_region_setup;
- break;
-
- case ACPI_ADR_SPACE_PCI_BAR_TARGET:
- handler = acpi_ex_pci_bar_space_handler;
- setup = acpi_ev_pci_bar_region_setup;
- break;
-
- case ACPI_ADR_SPACE_DATA_TABLE:
- handler = acpi_ex_data_table_space_handler;
- setup = NULL;
- break;
-
- default:
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- }
-
- /* If the caller hasn't specified a setup routine, use the default */
-
- if (!setup) {
- setup = acpi_ev_default_region_setup;
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (obj_desc) {
- /*
- * The attached device object already exists. Make sure the handler
- * is not already installed.
- */
- handler_obj = obj_desc->device.handler;
-
- /* Walk the handler list for this device */
-
- while (handler_obj) {
-
- /* Same space_id indicates a handler already installed */
-
- if (handler_obj->address_space.space_id == space_id) {
- if (handler_obj->address_space.handler ==
- handler) {
- /*
- * It is (relatively) OK to attempt to install the SAME
- * handler twice. This can easily happen with the
- * PCI_Config space.
- */
- status = AE_SAME_HANDLER;
- goto unlock_and_exit;
- } else {
- /* A handler is already installed */
-
- status = AE_ALREADY_EXISTS;
- }
- goto unlock_and_exit;
- }
-
- /* Walk the linked list of handlers */
-
- handler_obj = handler_obj->address_space.next;
- }
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Creating object on Device %p while installing handler\n",
- node));
-
- /* obj_desc does not exist, create one */
-
- if (node->type == ACPI_TYPE_ANY) {
- type = ACPI_TYPE_DEVICE;
- } else {
- type = node->type;
- }
-
- obj_desc = acpi_ut_create_internal_object(type);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- /* Init new descriptor */
-
- obj_desc->common.type = (u8) type;
-
- /* Attach the new object to the Node */
-
- status = acpi_ns_attach_object(node, obj_desc, type);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
-
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
- acpi_ut_get_region_name(space_id), space_id,
- acpi_ut_get_node_name(node), node, obj_desc));
-
- /*
- * Install the handler
- *
- * At this point there is no existing handler. Just allocate the object
- * for the handler and link it into the list.
- */
- handler_obj =
- acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
- if (!handler_obj) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- /* Init handler obj */
-
- handler_obj->address_space.space_id = (u8) space_id;
- handler_obj->address_space.handler_flags = flags;
- handler_obj->address_space.region_list = NULL;
- handler_obj->address_space.node = node;
- handler_obj->address_space.handler = handler;
- handler_obj->address_space.context = context;
- handler_obj->address_space.setup = setup;
-
- /* Install at head of Device.address_space list */
-
- handler_obj->address_space.next = obj_desc->device.handler;
-
- /*
- * The Device object is the first reference on the handler_obj.
- * Each region that uses the handler adds a reference.
- */
- obj_desc->device.handler = handler_obj;
-
- /*
- * Walk the namespace finding all of the regions this
- * handler will manage.
- *
- * Start at the device and search the branch toward
- * the leaf nodes until either the leaf is encountered or
- * a device is detected that has an address handler of the
- * same type.
- *
- * In either case, back up and search down the remainder
- * of the branch
- */
- status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
- ACPI_NS_WALK_UNLOCK,
- acpi_ev_install_handler, handler_obj,
- NULL);
-
- unlock_and_exit:
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_execute_reg_methods
- *
- * PARAMETERS: Node - Namespace node for the device
- * space_id - The address space ID
- *
- * RETURN: Status
- *
- * DESCRIPTION: Run all _REG methods for the input Space ID;
- * Note: assumes namespace is locked, or system init time.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
- acpi_adr_space_type space_id)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
-
- /*
- * Run all _REG methods for all Operation Regions for this space ID. This
- * is a separate walk in order to handle any interdependencies between
- * regions and _REG methods. (i.e. handlers must be installed for all
- * regions of this Space ID before we can run any _REG methods)
- */
- status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX,
- ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run,
- &space_id, NULL);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_reg_run
- *
- * PARAMETERS: walk_namespace callback
- *
- * DESCRIPTION: Run _REG method for region objects of the requested space_iD
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ev_reg_run(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- acpi_adr_space_type space_id;
- acpi_status status;
-
- space_id = *ACPI_CAST_PTR(acpi_adr_space_type, context);
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(obj_handle);
- if (!node) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * We only care about regions.and objects that are allowed to have address
- * space handlers
- */
- if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
- return (AE_OK);
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
-
- /* No object, just exit */
-
- return (AE_OK);
- }
-
- /* Object is a Region */
-
- if (obj_desc->region.space_id != space_id) {
-
- /* This region is for a different address space, just ignore it */
-
- return (AE_OK);
- }
-
- status = acpi_ev_execute_reg_method(obj_desc, 1);
- return (status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evrgnini- ACPI address_space (op_region) init
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evrgnini")
-
-/* Local prototypes */
-static u8 acpi_ev_match_pci_root_bridge(char *id);
-
-static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_system_memory_region_setup
- *
- * PARAMETERS: Handle - Region we are interested in
- * Function - Start or stop
- * handler_context - Address space handler context
- * region_context - Region specific context
- *
- * RETURN: Status
- *
- * DESCRIPTION: Setup a system_memory operation region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_system_memory_region_setup(acpi_handle handle,
- u32 function,
- void *handler_context, void **region_context)
-{
- union acpi_operand_object *region_desc =
- (union acpi_operand_object *)handle;
- struct acpi_mem_space_context *local_region_context;
-
- ACPI_FUNCTION_TRACE(ev_system_memory_region_setup);
-
- if (function == ACPI_REGION_DEACTIVATE) {
- if (*region_context) {
- local_region_context =
- (struct acpi_mem_space_context *)*region_context;
-
- /* Delete a cached mapping if present */
-
- if (local_region_context->mapped_length) {
- acpi_os_unmap_memory(local_region_context->
- mapped_logical_address,
- local_region_context->
- mapped_length);
- }
- ACPI_FREE(local_region_context);
- *region_context = NULL;
- }
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Create a new context */
-
- local_region_context =
- ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_mem_space_context));
- if (!(local_region_context)) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Save the region length and address for use in the handler */
-
- local_region_context->length = region_desc->region.length;
- local_region_context->address = region_desc->region.address;
-
- *region_context = local_region_context;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_io_space_region_setup
- *
- * PARAMETERS: Handle - Region we are interested in
- * Function - Start or stop
- * handler_context - Address space handler context
- * region_context - Region specific context
- *
- * RETURN: Status
- *
- * DESCRIPTION: Setup a IO operation region
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_io_space_region_setup(acpi_handle handle,
- u32 function,
- void *handler_context, void **region_context)
-{
- ACPI_FUNCTION_TRACE(ev_io_space_region_setup);
-
- if (function == ACPI_REGION_DEACTIVATE) {
- *region_context = NULL;
- } else {
- *region_context = handler_context;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_pci_config_region_setup
- *
- * PARAMETERS: Handle - Region we are interested in
- * Function - Start or stop
- * handler_context - Address space handler context
- * region_context - Region specific context
- *
- * RETURN: Status
- *
- * DESCRIPTION: Setup a PCI_Config operation region
- *
- * MUTEX: Assumes namespace is not locked
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_pci_config_region_setup(acpi_handle handle,
- u32 function,
- void *handler_context, void **region_context)
-{
- acpi_status status = AE_OK;
- acpi_integer pci_value;
- struct acpi_pci_id *pci_id = *region_context;
- union acpi_operand_object *handler_obj;
- struct acpi_namespace_node *parent_node;
- struct acpi_namespace_node *pci_root_node;
- struct acpi_namespace_node *pci_device_node;
- union acpi_operand_object *region_obj =
- (union acpi_operand_object *)handle;
-
- ACPI_FUNCTION_TRACE(ev_pci_config_region_setup);
-
- handler_obj = region_obj->region.handler;
- if (!handler_obj) {
- /*
- * No installed handler. This shouldn't happen because the dispatch
- * routine checks before we get here, but we check again just in case.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Attempting to init a region %p, with no handler\n",
- region_obj));
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- *region_context = NULL;
- if (function == ACPI_REGION_DEACTIVATE) {
- if (pci_id) {
- ACPI_FREE(pci_id);
- }
- return_ACPI_STATUS(status);
- }
-
- parent_node = acpi_ns_get_parent_node(region_obj->region.node);
-
- /*
- * Get the _SEG and _BBN values from the device upon which the handler
- * is installed.
- *
- * We need to get the _SEG and _BBN objects relative to the PCI BUS device.
- * This is the device the handler has been registered to handle.
- */
-
- /*
- * If the address_space.Node is still pointing to the root, we need
- * to scan upward for a PCI Root bridge and re-associate the op_region
- * handlers with that device.
- */
- if (handler_obj->address_space.node == acpi_gbl_root_node) {
-
- /* Start search from the parent object */
-
- pci_root_node = parent_node;
- while (pci_root_node != acpi_gbl_root_node) {
-
- /* Get the _HID/_CID in order to detect a root_bridge */
-
- if (acpi_ev_is_pci_root_bridge(pci_root_node)) {
-
- /* Install a handler for this PCI root bridge */
-
- status =
- acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
- if (ACPI_FAILURE(status)) {
- if (status == AE_SAME_HANDLER) {
- /*
- * It is OK if the handler is already installed on the
- * root bridge. Still need to return a context object
- * for the new PCI_Config operation region, however.
- */
- status = AE_OK;
- } else {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not install PciConfig handler for Root Bridge %4.4s",
- acpi_ut_get_node_name
- (pci_root_node)));
- }
- }
- break;
- }
-
- pci_root_node = acpi_ns_get_parent_node(pci_root_node);
- }
-
- /* PCI root bridge not found, use namespace root node */
- } else {
- pci_root_node = handler_obj->address_space.node;
- }
-
- /*
- * If this region is now initialized, we are done.
- * (install_address_space_handler could have initialized it)
- */
- if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Region is still not initialized. Create a new context */
-
- pci_id = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pci_id));
- if (!pci_id) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /*
- * For PCI_Config space access, we need the segment, bus, device and
- * function numbers. Acquire them here.
- *
- * Find the parent device object. (This allows the operation region to be
- * within a subscope under the device, such as a control method.)
- */
- pci_device_node = region_obj->region.node;
- while (pci_device_node && (pci_device_node->type != ACPI_TYPE_DEVICE)) {
- pci_device_node = acpi_ns_get_parent_node(pci_device_node);
- }
-
- if (!pci_device_node) {
- ACPI_FREE(pci_id);
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /*
- * Get the PCI device and function numbers from the _ADR object contained
- * in the parent's scope.
- */
- status =
- acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, pci_device_node,
- &pci_value);
-
- /*
- * The default is zero, and since the allocation above zeroed the data,
- * just do nothing on failure.
- */
- if (ACPI_SUCCESS(status)) {
- pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value));
- pci_id->function = ACPI_LOWORD(ACPI_LODWORD(pci_value));
- }
-
- /* The PCI segment number comes from the _SEG method */
-
- status =
- acpi_ut_evaluate_numeric_object(METHOD_NAME__SEG, pci_root_node,
- &pci_value);
- if (ACPI_SUCCESS(status)) {
- pci_id->segment = ACPI_LOWORD(pci_value);
- }
-
- /* The PCI bus number comes from the _BBN method */
-
- status =
- acpi_ut_evaluate_numeric_object(METHOD_NAME__BBN, pci_root_node,
- &pci_value);
- if (ACPI_SUCCESS(status)) {
- pci_id->bus = ACPI_LOWORD(pci_value);
- }
-
- /* Complete this device's pci_id */
-
- acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id);
-
- *region_context = pci_id;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_match_pci_root_bridge
- *
- * PARAMETERS: Id - The HID/CID in string format
- *
- * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
- *
- * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
- *
- ******************************************************************************/
-
-static u8 acpi_ev_match_pci_root_bridge(char *id)
-{
-
- /*
- * Check if this is a PCI root.
- * ACPI 3.0+: check for a PCI Express root also.
- */
- if (!(ACPI_STRNCMP(id,
- PCI_ROOT_HID_STRING,
- sizeof(PCI_ROOT_HID_STRING))) ||
- !(ACPI_STRNCMP(id,
- PCI_EXPRESS_ROOT_HID_STRING,
- sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) {
- return (TRUE);
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_is_pci_root_bridge
- *
- * PARAMETERS: Node - Device node being examined
- *
- * RETURN: TRUE if device is a PCI/PCI-Express Root Bridge
- *
- * DESCRIPTION: Determine if the input device represents a PCI Root Bridge by
- * examining the _HID and _CID for the device.
- *
- ******************************************************************************/
-
-static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
-{
- acpi_status status;
- struct acpica_device_id hid;
- struct acpi_compatible_id_list *cid;
- u32 i;
-
- /* Get the _HID and check for a PCI Root Bridge */
-
- status = acpi_ut_execute_HID(node, &hid);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
-
- if (acpi_ev_match_pci_root_bridge(hid.value)) {
- return (TRUE);
- }
-
- /* The _HID did not match. Get the _CID and check for a PCI Root Bridge */
-
- status = acpi_ut_execute_CID(node, &cid);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
-
- /* Check all _CIDs in the returned list */
-
- for (i = 0; i < cid->count; i++) {
- if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) {
- ACPI_FREE(cid);
- return (TRUE);
- }
- }
-
- ACPI_FREE(cid);
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_pci_bar_region_setup
- *
- * PARAMETERS: Handle - Region we are interested in
- * Function - Start or stop
- * handler_context - Address space handler context
- * region_context - Region specific context
- *
- * RETURN: Status
- *
- * DESCRIPTION: Setup a pci_bAR operation region
- *
- * MUTEX: Assumes namespace is not locked
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_pci_bar_region_setup(acpi_handle handle,
- u32 function,
- void *handler_context, void **region_context)
-{
- ACPI_FUNCTION_TRACE(ev_pci_bar_region_setup);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_cmos_region_setup
- *
- * PARAMETERS: Handle - Region we are interested in
- * Function - Start or stop
- * handler_context - Address space handler context
- * region_context - Region specific context
- *
- * RETURN: Status
- *
- * DESCRIPTION: Setup a CMOS operation region
- *
- * MUTEX: Assumes namespace is not locked
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_cmos_region_setup(acpi_handle handle,
- u32 function,
- void *handler_context, void **region_context)
-{
- ACPI_FUNCTION_TRACE(ev_cmos_region_setup);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_default_region_setup
- *
- * PARAMETERS: Handle - Region we are interested in
- * Function - Start or stop
- * handler_context - Address space handler context
- * region_context - Region specific context
- *
- * RETURN: Status
- *
- * DESCRIPTION: Default region initialization
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_default_region_setup(acpi_handle handle,
- u32 function,
- void *handler_context, void **region_context)
-{
- ACPI_FUNCTION_TRACE(ev_default_region_setup);
-
- if (function == ACPI_REGION_DEACTIVATE) {
- *region_context = NULL;
- } else {
- *region_context = handler_context;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_initialize_region
- *
- * PARAMETERS: region_obj - Region we are initializing
- * acpi_ns_locked - Is namespace locked?
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initializes the region, finds any _REG methods and saves them
- * for execution at a later time
- *
- * Get the appropriate address space handler for a newly
- * created region.
- *
- * This also performs address space specific initialization. For
- * example, PCI regions must have an _ADR object that contains
- * a PCI address in the scope of the definition. This address is
- * required to perform an access to PCI config space.
- *
- * MUTEX: Interpreter should be unlocked, because we may run the _REG
- * method for this region.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ev_initialize_region(union acpi_operand_object *region_obj,
- u8 acpi_ns_locked)
-{
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *obj_desc;
- acpi_adr_space_type space_id;
- struct acpi_namespace_node *node;
- acpi_status status;
- struct acpi_namespace_node *method_node;
- acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
- union acpi_operand_object *region_obj2;
-
- ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked);
-
- if (!region_obj) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) {
- return_ACPI_STATUS(AE_OK);
- }
-
- region_obj2 = acpi_ns_get_secondary_object(region_obj);
- if (!region_obj2) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- node = acpi_ns_get_parent_node(region_obj->region.node);
- space_id = region_obj->region.space_id;
-
- /* Setup defaults */
-
- region_obj->region.handler = NULL;
- region_obj2->extra.method_REG = NULL;
- region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE);
- region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
-
- /* Find any "_REG" method associated with this region definition */
-
- status =
- acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
- &method_node);
- if (ACPI_SUCCESS(status)) {
- /*
- * The _REG method is optional and there can be only one per region
- * definition. This will be executed when the handler is attached
- * or removed
- */
- region_obj2->extra.method_REG = method_node;
- }
-
- /*
- * The following loop depends upon the root Node having no parent
- * ie: acpi_gbl_root_node->parent_entry being set to NULL
- */
- while (node) {
-
- /* Check to see if a handler exists */
-
- handler_obj = NULL;
- obj_desc = acpi_ns_get_attached_object(node);
- if (obj_desc) {
-
- /* Can only be a handler if the object exists */
-
- switch (node->type) {
- case ACPI_TYPE_DEVICE:
-
- handler_obj = obj_desc->device.handler;
- break;
-
- case ACPI_TYPE_PROCESSOR:
-
- handler_obj = obj_desc->processor.handler;
- break;
-
- case ACPI_TYPE_THERMAL:
-
- handler_obj = obj_desc->thermal_zone.handler;
- break;
-
- default:
- /* Ignore other objects */
- break;
- }
-
- while (handler_obj) {
-
- /* Is this handler of the correct type? */
-
- if (handler_obj->address_space.space_id ==
- space_id) {
-
- /* Found correct handler */
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Found handler %p for region %p in obj %p\n",
- handler_obj,
- region_obj,
- obj_desc));
-
- status =
- acpi_ev_attach_region(handler_obj,
- region_obj,
- acpi_ns_locked);
-
- /*
- * Tell all users that this region is usable by running the _REG
- * method
- */
- if (acpi_ns_locked) {
- status =
- acpi_ut_release_mutex
- (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS
- (status);
- }
- }
-
- status =
- acpi_ev_execute_reg_method
- (region_obj, 1);
-
- if (acpi_ns_locked) {
- status =
- acpi_ut_acquire_mutex
- (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS
- (status);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Try next handler in the list */
-
- handler_obj = handler_obj->address_space.next;
- }
- }
-
- /* This node does not have the handler we need; Pop up one level */
-
- node = acpi_ns_get_parent_node(node);
- }
-
- /* If we get here, there is no handler for this region */
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "No handler for RegionType %s(%X) (RegionObj %p)\n",
- acpi_ut_get_region_name(space_id), space_id,
- region_obj));
-
- return_ACPI_STATUS(AE_NOT_EXIST);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: evsci - System Control Interrupt configuration and
- * legacy to ACPI mode state transition functions
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evsci")
-
-/* Local prototypes */
-static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_sci_xrupt_handler
- *
- * PARAMETERS: Context - Calling Context
- *
- * RETURN: Status code indicates whether interrupt was handled.
- *
- * DESCRIPTION: Interrupt handler that will figure out what function or
- * control method to call to deal with a SCI.
- *
- ******************************************************************************/
-
-static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
-{
- struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
- u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
-
- ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler);
-
- /*
- * We are guaranteed by the ACPI CA initialization/shutdown code that
- * if this interrupt handler is installed, ACPI is enabled.
- */
-
- /*
- * Fixed Events:
- * Check for and dispatch any Fixed Events that have occurred
- */
- interrupt_handled |= acpi_ev_fixed_event_detect();
-
- /*
- * General Purpose Events:
- * Check for and dispatch any GPEs that have occurred
- */
- interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
-
- return_UINT32(interrupt_handled);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_gpe_xrupt_handler
- *
- * PARAMETERS: Context - Calling Context
- *
- * RETURN: Status code indicates whether interrupt was handled.
- *
- * DESCRIPTION: Handler for GPE Block Device interrupts
- *
- ******************************************************************************/
-
-u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
-{
- struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
- u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
-
- ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler);
-
- /*
- * We are guaranteed by the ACPI CA initialization/shutdown code that
- * if this interrupt handler is installed, ACPI is enabled.
- */
-
- /* GPEs: Check for and dispatch any GPEs that have occurred */
-
- interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
-
- return_UINT32(interrupt_handled);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_ev_install_sci_handler
- *
- * PARAMETERS: none
- *
- * RETURN: Status
- *
- * DESCRIPTION: Installs SCI handler.
- *
- ******************************************************************************/
-
-u32 acpi_ev_install_sci_handler(void)
-{
- u32 status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ev_install_sci_handler);
-
- status =
- acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
- acpi_ev_sci_xrupt_handler,
- acpi_gbl_gpe_xrupt_list_head);
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_ev_remove_sci_handler
- *
- * PARAMETERS: none
- *
- * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not
- * installed to begin with
- *
- * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
- * taken.
- *
- * Note: It doesn't seem important to disable all events or set the event
- * enable registers to their original values. The OS should disable
- * the SCI interrupt level when the handler is removed, so no more
- * events will come in.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_remove_sci_handler(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ev_remove_sci_handler);
-
- /* Just let the OS remove the handler and disable the level */
-
- status =
- acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
- acpi_ev_sci_xrupt_handler);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evxface - External interfaces for ACPI events
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evxface")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_exception_handler
- *
- * PARAMETERS: Handler - Pointer to the handler function for the
- * event
- *
- * RETURN: Status
- *
- * DESCRIPTION: Saves the pointer to the handler function
- *
- ******************************************************************************/
-#ifdef ACPI_FUTURE_USAGE
-acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_exception_handler);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Don't allow two handlers. */
-
- if (acpi_gbl_exception_handler) {
- status = AE_ALREADY_EXISTS;
- goto cleanup;
- }
-
- /* Install the handler */
-
- acpi_gbl_exception_handler = handler;
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
-#endif /* ACPI_FUTURE_USAGE */
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_fixed_event_handler
- *
- * PARAMETERS: Event - Event type to enable.
- * Handler - Pointer to the handler function for the
- * event
- * Context - Value passed to the handler on each GPE
- *
- * RETURN: Status
- *
- * DESCRIPTION: Saves the pointer to the handler function and then enables the
- * event.
- *
- ******************************************************************************/
-acpi_status
-acpi_install_fixed_event_handler(u32 event,
- acpi_event_handler handler, void *context)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler);
-
- /* Parameter validation */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Don't allow two handlers. */
-
- if (NULL != acpi_gbl_fixed_event_handlers[event].handler) {
- status = AE_ALREADY_EXISTS;
- goto cleanup;
- }
-
- /* Install the handler before enabling the event */
-
- acpi_gbl_fixed_event_handlers[event].handler = handler;
- acpi_gbl_fixed_event_handlers[event].context = context;
-
- status = acpi_clear_event(event);
- if (ACPI_SUCCESS(status))
- status = acpi_enable_event(event, 0);
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "Could not enable fixed event %X",
- event));
-
- /* Remove the handler */
-
- acpi_gbl_fixed_event_handlers[event].handler = NULL;
- acpi_gbl_fixed_event_handlers[event].context = NULL;
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Enabled fixed event %X, Handler=%p\n", event,
- handler));
- }
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_fixed_event_handler
- *
- * PARAMETERS: Event - Event type to disable.
- * Handler - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disables the event and unregisters the event handler.
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler);
-
- /* Parameter validation */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Disable the event before removing the handler */
-
- status = acpi_disable_event(event, 0);
-
- /* Always Remove the handler */
-
- acpi_gbl_fixed_event_handlers[event].handler = NULL;
- acpi_gbl_fixed_event_handlers[event].context = NULL;
-
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO,
- "Could not write to fixed event enable register %X",
- event));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n",
- event));
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_notify_handler
- *
- * PARAMETERS: Device - The device for which notifies will be handled
- * handler_type - The type of handler:
- * ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
- * ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
- * ACPI_ALL_NOTIFY: both system and device
- * Handler - Address of the handler
- * Context - Value passed to the handler on each GPE
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install a handler for notifies on an ACPI device
- *
- ******************************************************************************/
-acpi_status
-acpi_install_notify_handler(acpi_handle device,
- u32 handler_type,
- acpi_notify_handler handler, void *context)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *notify_obj;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_notify_handler);
-
- /* Parameter validation */
-
- if ((!device) ||
- (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /*
- * Root Object:
- * Registering a notify handler on the root object indicates that the
- * caller wishes to receive notifications for all objects. Note that
- * only one <external> global handler can be regsitered (per notify type).
- */
- if (device == ACPI_ROOT_OBJECT) {
-
- /* Make sure the handler is not already installed */
-
- if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
- acpi_gbl_system_notify.handler) ||
- ((handler_type & ACPI_DEVICE_NOTIFY) &&
- acpi_gbl_device_notify.handler)) {
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- }
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- acpi_gbl_system_notify.node = node;
- acpi_gbl_system_notify.handler = handler;
- acpi_gbl_system_notify.context = context;
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- acpi_gbl_device_notify.node = node;
- acpi_gbl_device_notify.handler = handler;
- acpi_gbl_device_notify.context = context;
- }
-
- /* Global notify handler installed */
- }
-
- /*
- * All Other Objects:
- * Caller will only receive notifications specific to the target object.
- * Note that only certain object types can receive notifications.
- */
- else {
- /* Notifies allowed on this object? */
-
- if (!acpi_ev_is_notify_object(node)) {
- status = AE_TYPE;
- goto unlock_and_exit;
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (obj_desc) {
-
- /* Object exists - make sure there's no handler */
-
- if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
- obj_desc->common_notify.system_notify) ||
- ((handler_type & ACPI_DEVICE_NOTIFY) &&
- obj_desc->common_notify.device_notify)) {
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- }
- } else {
- /* Create a new object */
-
- obj_desc = acpi_ut_create_internal_object(node->type);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- /* Attach new object to the Node */
-
- status =
- acpi_ns_attach_object(device, obj_desc, node->type);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- }
-
- /* Install the handler */
-
- notify_obj =
- acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_NOTIFY);
- if (!notify_obj) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- notify_obj->notify.node = node;
- notify_obj->notify.handler = handler;
- notify_obj->notify.context = context;
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- obj_desc->common_notify.system_notify = notify_obj;
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- obj_desc->common_notify.device_notify = notify_obj;
- }
-
- if (handler_type == ACPI_ALL_NOTIFY) {
-
- /* Extra ref if installed in both */
-
- acpi_ut_add_reference(notify_obj);
- }
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_notify_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_notify_handler
- *
- * PARAMETERS: Device - The device for which notifies will be handled
- * handler_type - The type of handler:
- * ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
- * ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
- * ACPI_ALL_NOTIFY: both system and device
- * Handler - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a handler for notifies on an ACPI device
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_notify_handler(acpi_handle device,
- u32 handler_type, acpi_notify_handler handler)
-{
- union acpi_operand_object *notify_obj;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_remove_notify_handler);
-
- /* Parameter validation */
-
- if ((!device) ||
- (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
- status = AE_BAD_PARAMETER;
- goto exit;
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Root Object */
-
- if (device == ACPI_ROOT_OBJECT) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Removing notify handler for namespace root object\n"));
-
- if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
- !acpi_gbl_system_notify.handler) ||
- ((handler_type & ACPI_DEVICE_NOTIFY) &&
- !acpi_gbl_device_notify.handler)) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- acpi_gbl_system_notify.node = NULL;
- acpi_gbl_system_notify.handler = NULL;
- acpi_gbl_system_notify.context = NULL;
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- acpi_gbl_device_notify.node = NULL;
- acpi_gbl_device_notify.handler = NULL;
- acpi_gbl_device_notify.context = NULL;
- }
- }
-
- /* All Other Objects */
-
- else {
- /* Notifies allowed on this object? */
-
- if (!acpi_ev_is_notify_object(node)) {
- status = AE_TYPE;
- goto unlock_and_exit;
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Object exists - make sure there's an existing handler */
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- notify_obj = obj_desc->common_notify.system_notify;
- if (!notify_obj) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- if (notify_obj->notify.handler != handler) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Remove the handler */
- obj_desc->common_notify.system_notify = NULL;
- acpi_ut_remove_reference(notify_obj);
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- notify_obj = obj_desc->common_notify.device_notify;
- if (!notify_obj) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- if (notify_obj->notify.handler != handler) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Remove the handler */
- obj_desc->common_notify.device_notify = NULL;
- acpi_ut_remove_reference(notify_obj);
- }
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- exit:
- if (ACPI_FAILURE(status))
- ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler"));
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_gpe_handler
- *
- * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT
- * defined GPEs)
- * gpe_number - The GPE number within the GPE block
- * Type - Whether this GPE should be treated as an
- * edge- or level-triggered interrupt.
- * Address - Address of the handler
- * Context - Value passed to the handler on each GPE
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install a handler for a General Purpose Event.
- *
- ******************************************************************************/
-acpi_status
-acpi_install_gpe_handler(acpi_handle gpe_device,
- u32 gpe_number,
- u32 type, acpi_event_handler address, void *context)
-{
- struct acpi_gpe_event_info *gpe_event_info;
- struct acpi_handler_info *handler;
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(acpi_install_gpe_handler);
-
- /* Parameter validation */
-
- if ((!address) || (type > ACPI_GPE_XRUPT_TYPE_MASK)) {
- status = AE_BAD_PARAMETER;
- goto exit;
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Make sure that there isn't a handler there already */
-
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
- ACPI_GPE_DISPATCH_HANDLER) {
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- }
-
- /* Allocate and init handler object */
-
- handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info));
- if (!handler) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- handler->address = address;
- handler->context = context;
- handler->method_node = gpe_event_info->dispatch.method_node;
-
- /* Disable the GPE before installing the handler */
-
- status = acpi_ev_disable_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Install the handler */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- gpe_event_info->dispatch.handler = handler;
-
- /* Setup up dispatch flags to indicate handler (vs. method) */
-
- gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* Clear bits */
- gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER);
-
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- exit:
- if (ACPI_FAILURE(status))
- ACPI_EXCEPTION((AE_INFO, status,
- "Installing notify handler failed"));
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_gpe_handler
- *
- * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT
- * defined GPEs)
- * gpe_number - The event to remove a handler
- * Address - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a handler for a General Purpose acpi_event.
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_gpe_handler(acpi_handle gpe_device,
- u32 gpe_number, acpi_event_handler address)
-{
- struct acpi_gpe_event_info *gpe_event_info;
- struct acpi_handler_info *handler;
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler);
-
- /* Parameter validation */
-
- if (!address) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Make sure that a handler is indeed installed */
-
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) !=
- ACPI_GPE_DISPATCH_HANDLER) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Make sure that the installed handler is the same */
-
- if (gpe_event_info->dispatch.handler->address != address) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Disable the GPE before removing the handler */
-
- status = acpi_ev_disable_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Remove the handler */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- handler = gpe_event_info->dispatch.handler;
-
- /* Restore Method node (if any), set dispatch flags */
-
- gpe_event_info->dispatch.method_node = handler->method_node;
- gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; /* Clear bits */
- if (handler->method_node) {
- gpe_event_info->flags |= ACPI_GPE_DISPATCH_METHOD;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- /* Now we can free the handler object */
-
- ACPI_FREE(handler);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_acquire_global_lock
- *
- * PARAMETERS: Timeout - How long the caller is willing to wait
- * Handle - Where the handle to the lock is returned
- * (if acquired)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Acquire the ACPI Global Lock
- *
- * Note: Allows callers with the same thread ID to acquire the global lock
- * multiple times. In other words, externally, the behavior of the global lock
- * is identical to an AML mutex. On the first acquire, a new handle is
- * returned. On any subsequent calls to acquire by the same thread, the same
- * handle is returned.
- *
- ******************************************************************************/
-acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
-{
- acpi_status status;
-
- if (!handle) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Must lock interpreter to prevent race conditions */
-
- acpi_ex_enter_interpreter();
-
- status = acpi_ex_acquire_mutex_object(timeout,
- acpi_gbl_global_lock_mutex,
- acpi_os_get_thread_id());
-
- if (ACPI_SUCCESS(status)) {
-
- /* Return the global lock handle (updated in acpi_ev_acquire_global_lock) */
-
- *handle = acpi_gbl_global_lock_handle;
- }
-
- acpi_ex_exit_interpreter();
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_release_global_lock
- *
- * PARAMETERS: Handle - Returned from acpi_acquire_global_lock
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid.
- *
- ******************************************************************************/
-acpi_status acpi_release_global_lock(u32 handle)
-{
- acpi_status status;
-
- if (!handle || (handle != acpi_gbl_global_lock_handle)) {
- return (AE_NOT_ACQUIRED);
- }
-
- status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_release_global_lock)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evxfevnt")
-
-/* Local prototypes */
-acpi_status
-acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block, void *context);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enable
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Transfers the system into ACPI mode.
- *
- ******************************************************************************/
-
-acpi_status acpi_enable(void)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_enable);
-
- /* ACPI tables must be present */
-
- if (!acpi_tb_tables_loaded()) {
- return_ACPI_STATUS(AE_NO_ACPI_TABLES);
- }
-
- /* Check current mode */
-
- if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "System is already in ACPI mode\n"));
- } else {
- /* Transition to ACPI mode */
-
- status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not transition to ACPI mode"));
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "Transition to ACPI mode successful\n"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enable)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_disable
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode.
- *
- ******************************************************************************/
-acpi_status acpi_disable(void)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_disable);
-
- if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) {
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "System is already in legacy (non-ACPI) mode\n"));
- } else {
- /* Transition to LEGACY mode */
-
- status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY);
-
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not exit ACPI mode to legacy mode"));
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_disable)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enable_event
- *
- * PARAMETERS: Event - The fixed eventto be enabled
- * Flags - Reserved
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable an ACPI event (fixed)
- *
- ******************************************************************************/
-acpi_status acpi_enable_event(u32 event, u32 flags)
-{
- acpi_status status = AE_OK;
- u32 value;
-
- ACPI_FUNCTION_TRACE(acpi_enable_event);
-
- /* Decode the Fixed Event */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Enable the requested fixed event (by writing a one to the enable
- * register bit)
- */
- status =
- acpi_set_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Make sure that the hardware responded */
-
- status =
- acpi_get_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, &value);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (value != 1) {
- ACPI_ERROR((AE_INFO,
- "Could not enable %s event",
- acpi_ut_get_event_name(event)));
- return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enable_event)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_gpe_type
- *
- * PARAMETERS: gpe_device - Parent GPE Device
- * gpe_number - GPE level within the GPE block
- * Type - New GPE type
- *
- * RETURN: Status
- *
- * DESCRIPTION: Set the type of an individual GPE
- *
- ******************************************************************************/
-acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type)
-{
- acpi_status status = AE_OK;
- struct acpi_gpe_event_info *gpe_event_info;
-
- ACPI_FUNCTION_TRACE(acpi_set_gpe_type);
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- if ((gpe_event_info->flags & ACPI_GPE_TYPE_MASK) == type) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Set the new type (will disable GPE if currently enabled) */
-
- status = acpi_ev_set_gpe_type(gpe_event_info, type);
-
- unlock_and_exit:
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_gpe_type)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enable_gpe
- *
- * PARAMETERS: gpe_device - Parent GPE Device
- * gpe_number - GPE level within the GPE block
- * Flags - Just enable, or also wake enable?
- * Called from ISR or not
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable an ACPI event (general purpose)
- *
- ******************************************************************************/
-acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number)
-{
- acpi_status status = AE_OK;
- acpi_cpu_flags flags;
- struct acpi_gpe_event_info *gpe_event_info;
-
- ACPI_FUNCTION_TRACE(acpi_enable_gpe);
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Perform the enable */
-
- status = acpi_ev_enable_gpe(gpe_event_info, TRUE);
-
- unlock_and_exit:
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enable_gpe)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_disable_gpe
- *
- * PARAMETERS: gpe_device - Parent GPE Device
- * gpe_number - GPE level within the GPE block
- * Flags - Just disable, or also wake disable?
- * Called from ISR or not
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable an ACPI event (general purpose)
- *
- ******************************************************************************/
-acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number)
-{
- acpi_status status = AE_OK;
- acpi_cpu_flags flags;
- struct acpi_gpe_event_info *gpe_event_info;
-
- ACPI_FUNCTION_TRACE(acpi_disable_gpe);
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- status = acpi_ev_disable_gpe(gpe_event_info);
-
-unlock_and_exit:
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_disable_gpe)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_disable_event
- *
- * PARAMETERS: Event - The fixed eventto be enabled
- * Flags - Reserved
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable an ACPI event (fixed)
- *
- ******************************************************************************/
-acpi_status acpi_disable_event(u32 event, u32 flags)
-{
- acpi_status status = AE_OK;
- u32 value;
-
- ACPI_FUNCTION_TRACE(acpi_disable_event);
-
- /* Decode the Fixed Event */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Disable the requested fixed event (by writing a zero to the enable
- * register bit)
- */
- status =
- acpi_set_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, 0);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status =
- acpi_get_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, &value);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (value != 0) {
- ACPI_ERROR((AE_INFO,
- "Could not disable %s events",
- acpi_ut_get_event_name(event)));
- return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_disable_event)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_clear_event
- *
- * PARAMETERS: Event - The fixed event to be cleared
- *
- * RETURN: Status
- *
- * DESCRIPTION: Clear an ACPI event (fixed)
- *
- ******************************************************************************/
-acpi_status acpi_clear_event(u32 event)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_clear_event);
-
- /* Decode the Fixed Event */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Clear the requested fixed event (By writing a one to the status
- * register bit)
- */
- status =
- acpi_set_register(acpi_gbl_fixed_event_info[event].
- status_register_id, 1);
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_clear_event)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_clear_gpe
- *
- * PARAMETERS: gpe_device - Parent GPE Device
- * gpe_number - GPE level within the GPE block
- * Flags - Called from an ISR or not
- *
- * RETURN: Status
- *
- * DESCRIPTION: Clear an ACPI event (general purpose)
- *
- ******************************************************************************/
-acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
-{
- acpi_status status = AE_OK;
- struct acpi_gpe_event_info *gpe_event_info;
-
- ACPI_FUNCTION_TRACE(acpi_clear_gpe);
-
- /* Use semaphore lock if not executing at interrupt level */
-
- if (flags & ACPI_NOT_ISR) {
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- status = acpi_hw_clear_gpe(gpe_event_info);
-
- unlock_and_exit:
- if (flags & ACPI_NOT_ISR) {
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- }
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_event_status
- *
- * PARAMETERS: Event - The fixed event
- * event_status - Where the current status of the event will
- * be returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Obtains and returns the current status of the event
- *
- ******************************************************************************/
-acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
-{
- acpi_status status = AE_OK;
- u32 value;
-
- ACPI_FUNCTION_TRACE(acpi_get_event_status);
-
- if (!event_status) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Decode the Fixed Event */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Get the status of the requested fixed event */
-
- status =
- acpi_get_register(acpi_gbl_fixed_event_info[event].
- enable_register_id, &value);
- if (ACPI_FAILURE(status))
- return_ACPI_STATUS(status);
-
- *event_status = value;
-
- status =
- acpi_get_register(acpi_gbl_fixed_event_info[event].
- status_register_id, &value);
- if (ACPI_FAILURE(status))
- return_ACPI_STATUS(status);
-
- if (value)
- *event_status |= ACPI_EVENT_FLAG_SET;
-
- if (acpi_gbl_fixed_event_handlers[event].handler)
- *event_status |= ACPI_EVENT_FLAG_HANDLE;
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_event_status)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_gpe_status
- *
- * PARAMETERS: gpe_device - Parent GPE Device
- * gpe_number - GPE level within the GPE block
- * Flags - Called from an ISR or not
- * event_status - Where the current status of the event will
- * be returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get status of an event (general purpose)
- *
- ******************************************************************************/
-acpi_status
-acpi_get_gpe_status(acpi_handle gpe_device,
- u32 gpe_number, u32 flags, acpi_event_status * event_status)
-{
- acpi_status status = AE_OK;
- struct acpi_gpe_event_info *gpe_event_info;
-
- ACPI_FUNCTION_TRACE(acpi_get_gpe_status);
-
- /* Use semaphore lock if not executing at interrupt level */
-
- if (flags & ACPI_NOT_ISR) {
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Obtain status on the requested GPE number */
-
- status = acpi_hw_get_gpe_status(gpe_event_info, event_status);
-
- if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
- *event_status |= ACPI_EVENT_FLAG_HANDLE;
-
- unlock_and_exit:
- if (flags & ACPI_NOT_ISR) {
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- }
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_gpe_block
- *
- * PARAMETERS: gpe_device - Handle to the parent GPE Block Device
- * gpe_block_address - Address and space_iD
- * register_count - Number of GPE register pairs in the block
- * interrupt_number - H/W interrupt for the block
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create and Install a block of GPE registers
- *
- ******************************************************************************/
-acpi_status
-acpi_install_gpe_block(acpi_handle gpe_device,
- struct acpi_generic_address *gpe_block_address,
- u32 register_count, u32 interrupt_number)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- struct acpi_gpe_block_info *gpe_block;
-
- ACPI_FUNCTION_TRACE(acpi_install_gpe_block);
-
- if ((!gpe_device) || (!gpe_block_address) || (!register_count)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- node = acpi_ns_map_handle_to_node(gpe_device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /*
- * For user-installed GPE Block Devices, the gpe_block_base_number
- * is always zero
- */
- status =
- acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0,
- interrupt_number, &gpe_block);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Run the _PRW methods and enable the GPEs */
-
- status = acpi_ev_initialize_gpe_block(node, gpe_block);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Get the device_object attached to the node */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
-
- /* No object, create a new one */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- status =
- acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
-
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- }
-
- /* Install the GPE block in the device_object */
-
- obj_desc->device.gpe_block = gpe_block;
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_gpe_block)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_gpe_block
- *
- * PARAMETERS: gpe_device - Handle to the parent GPE Block Device
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a previously installed block of GPE registers
- *
- ******************************************************************************/
-acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(acpi_remove_gpe_block);
-
- if (!gpe_device) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- node = acpi_ns_map_handle_to_node(gpe_device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Get the device_object attached to the node */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc || !obj_desc->device.gpe_block) {
- return_ACPI_STATUS(AE_NULL_OBJECT);
- }
-
- /* Delete the GPE block (but not the device_object) */
-
- status = acpi_ev_delete_gpe_block(obj_desc->device.gpe_block);
- if (ACPI_SUCCESS(status)) {
- obj_desc->device.gpe_block = NULL;
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_gpe_device
- *
- * PARAMETERS: Index - System GPE index (0-current_gpe_count)
- * gpe_device - Where the parent GPE Device is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Obtain the GPE device associated with the input index. A NULL
- * gpe device indicates that the gpe number is contained in one of
- * the FADT-defined gpe blocks. Otherwise, the GPE block device.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_gpe_device(u32 index, acpi_handle *gpe_device)
-{
- struct acpi_gpe_device_info info;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_get_gpe_device);
-
- if (!gpe_device) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (index >= acpi_current_gpe_count) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Setup and walk the GPE list */
-
- info.index = index;
- info.status = AE_NOT_EXIST;
- info.gpe_device = NULL;
- info.next_block_base_index = 0;
-
- status = acpi_ev_walk_gpe_list(acpi_ev_get_gpe_device, &info);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- *gpe_device = info.gpe_device;
- return_ACPI_STATUS(info.status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_gpe_device)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ev_get_gpe_device
- *
- * PARAMETERS: GPE_WALK_CALLBACK
- *
- * RETURN: Status
- *
- * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE
- * block device. NULL if the GPE is one of the FADT-defined GPEs.
- *
- ******************************************************************************/
-acpi_status
-acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block, void *context)
-{
- struct acpi_gpe_device_info *info = context;
-
- /* Increment Index by the number of GPEs in this block */
-
- info->next_block_base_index +=
- (gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH);
-
- if (info->index < info->next_block_base_index) {
- /*
- * The GPE index is within this block, get the node. Leave the node
- * NULL for the FADT-defined GPEs
- */
- if ((gpe_block->node)->type == ACPI_TYPE_DEVICE) {
- info->gpe_device = gpe_block->node;
- }
-
- info->status = AE_OK;
- return (AE_CTRL_END);
- }
-
- return (AE_OK);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_disable_all_gpes
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable and clear all GPEs in all GPE blocks
- *
- ******************************************************************************/
-
-acpi_status acpi_disable_all_gpes(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_disable_all_gpes);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_disable_all_gpes();
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
-
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_enable_all_runtime_gpes
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
- *
- ******************************************************************************/
-
-acpi_status acpi_enable_all_runtime_gpes(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_enable_all_runtime_gpes);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_enable_all_runtime_gpes();
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: evxfregn - External Interfaces, ACPI Operation Regions and
- * Address Spaces.
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evxfregn")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_address_space_handler
- *
- * PARAMETERS: Device - Handle for the device
- * space_id - The address space ID
- * Handler - Address of the handler
- * Setup - Address of the setup function
- * Context - Value passed to the handler on each access
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install a handler for all op_regions of a given space_id.
- *
- ******************************************************************************/
-acpi_status
-acpi_install_address_space_handler(acpi_handle device,
- acpi_adr_space_type space_id,
- acpi_adr_space_handler handler,
- acpi_adr_space_setup setup, void *context)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_address_space_handler);
-
- /* Parameter validation */
-
- if (!device) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Install the handler for all Regions for this Space ID */
-
- status =
- acpi_ev_install_space_handler(node, space_id, handler, setup,
- context);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Run all _REG methods for this address space */
-
- status = acpi_ev_execute_reg_methods(node, space_id);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_address_space_handler
- *
- * PARAMETERS: Device - Handle for the device
- * space_id - The address space ID
- * Handler - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a previously installed handler.
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_address_space_handler(acpi_handle device,
- acpi_adr_space_type space_id,
- acpi_adr_space_handler handler)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *handler_obj;
- union acpi_operand_object *region_obj;
- union acpi_operand_object **last_obj_ptr;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler);
-
- /* Parameter validation */
-
- if (!device) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(device);
- if (!node ||
- ((node->type != ACPI_TYPE_DEVICE) &&
- (node->type != ACPI_TYPE_PROCESSOR) &&
- (node->type != ACPI_TYPE_THERMAL) &&
- (node != acpi_gbl_root_node))) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Make sure the internal object exists */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Find the address handler the user requested */
-
- handler_obj = obj_desc->device.handler;
- last_obj_ptr = &obj_desc->device.handler;
- while (handler_obj) {
-
- /* We have a handler, see if user requested this one */
-
- if (handler_obj->address_space.space_id == space_id) {
-
- /* Handler must be the same as the installed handler */
-
- if (handler_obj->address_space.handler != handler) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Matched space_id, first dereference this in the Regions */
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Removing address handler %p(%p) for region %s on Device %p(%p)\n",
- handler_obj, handler,
- acpi_ut_get_region_name(space_id),
- node, obj_desc));
-
- region_obj = handler_obj->address_space.region_list;
-
- /* Walk the handler's region list */
-
- while (region_obj) {
- /*
- * First disassociate the handler from the region.
- *
- * NOTE: this doesn't mean that the region goes away
- * The region is just inaccessible as indicated to
- * the _REG method
- */
- acpi_ev_detach_region(region_obj, TRUE);
-
- /*
- * Walk the list: Just grab the head because the
- * detach_region removed the previous head.
- */
- region_obj =
- handler_obj->address_space.region_list;
-
- }
-
- /* Remove this Handler object from the list */
-
- *last_obj_ptr = handler_obj->address_space.next;
-
- /* Now we can delete the handler object */
-
- acpi_ut_remove_reference(handler_obj);
- goto unlock_and_exit;
- }
-
- /* Walk the linked list of handlers */
-
- last_obj_ptr = &handler_obj->address_space.next;
- handler_obj = handler_obj->address_space.next;
- }
-
- /* The handler does not exist */
-
- ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
- "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n",
- handler, acpi_ut_get_region_name(space_id), space_id,
- node, obj_desc));
-
- status = AE_NOT_EXIST;
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler)
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := exconfig.o exfield.o exnames.o exoparg6.o exresolv.o exstorob.o\
- exconvrt.o exfldio.o exoparg1.o exprep.o exresop.o exsystem.o\
- excreate.o exmisc.o exoparg2.o exregion.o exstore.o exutils.o \
- exdump.o exmutex.o exoparg3.o exresnte.o exstoren.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes)
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
-#include <acpi/acdispat.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exconfig")
-
-/* Local prototypes */
-static acpi_status
-acpi_ex_add_table(u32 table_index,
- struct acpi_namespace_node *parent_node,
- union acpi_operand_object **ddb_handle);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_add_table
- *
- * PARAMETERS: Table - Pointer to raw table
- * parent_node - Where to load the table (scope)
- * ddb_handle - Where to return the table handle.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Common function to Install and Load an ACPI table with a
- * returned table handle.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ex_add_table(u32 table_index,
- struct acpi_namespace_node *parent_node,
- union acpi_operand_object **ddb_handle)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE(ex_add_table);
-
- /* Create an object to be the table handle */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Init the table handle */
-
- obj_desc->reference.class = ACPI_REFCLASS_TABLE;
- *ddb_handle = obj_desc;
-
- /* Install the new table into the local data structures */
-
- obj_desc->reference.value = table_index;
-
- /* Add the table to the namespace */
-
- status = acpi_ns_load_table(table_index, parent_node);
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(obj_desc);
- *ddb_handle = NULL;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_load_table_op
- *
- * PARAMETERS: walk_state - Current state with operands
- * return_desc - Where to store the return object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load an ACPI table from the RSDT/XSDT
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
- union acpi_operand_object **return_desc)
-{
- acpi_status status;
- union acpi_operand_object **operand = &walk_state->operands[0];
- struct acpi_namespace_node *parent_node;
- struct acpi_namespace_node *start_node;
- struct acpi_namespace_node *parameter_node = NULL;
- union acpi_operand_object *ddb_handle;
- struct acpi_table_header *table;
- u32 table_index;
-
- ACPI_FUNCTION_TRACE(ex_load_table_op);
-
- /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */
-
- if ((operand[0]->string.length > ACPI_NAME_SIZE) ||
- (operand[1]->string.length > ACPI_OEM_ID_SIZE) ||
- (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Find the ACPI table in the RSDT/XSDT */
-
- status = acpi_tb_find_table(operand[0]->string.pointer,
- operand[1]->string.pointer,
- operand[2]->string.pointer, &table_index);
- if (ACPI_FAILURE(status)) {
- if (status != AE_NOT_FOUND) {
- return_ACPI_STATUS(status);
- }
-
- /* Table not found, return an Integer=0 and AE_OK */
-
- ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!ddb_handle) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ddb_handle->integer.value = 0;
- *return_desc = ddb_handle;
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Default nodes */
-
- start_node = walk_state->scope_info->scope.node;
- parent_node = acpi_gbl_root_node;
-
- /* root_path (optional parameter) */
-
- if (operand[3]->string.length > 0) {
- /*
- * Find the node referenced by the root_path_string. This is the
- * location within the namespace where the table will be loaded.
- */
- status =
- acpi_ns_get_node(start_node, operand[3]->string.pointer,
- ACPI_NS_SEARCH_PARENT, &parent_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* parameter_path (optional parameter) */
-
- if (operand[4]->string.length > 0) {
- if ((operand[4]->string.pointer[0] != '\\') &&
- (operand[4]->string.pointer[0] != '^')) {
- /*
- * Path is not absolute, so it will be relative to the node
- * referenced by the root_path_string (or the NS root if omitted)
- */
- start_node = parent_node;
- }
-
- /* Find the node referenced by the parameter_path_string */
-
- status =
- acpi_ns_get_node(start_node, operand[4]->string.pointer,
- ACPI_NS_SEARCH_PARENT, ¶meter_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Load the table into the namespace */
-
- status = acpi_ex_add_table(table_index, parent_node, &ddb_handle);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Parameter Data (optional) */
-
- if (parameter_node) {
-
- /* Store the parameter data into the optional parameter object */
-
- status = acpi_ex_store(operand[5],
- ACPI_CAST_PTR(union acpi_operand_object,
- parameter_node),
- walk_state);
- if (ACPI_FAILURE(status)) {
- (void)acpi_ex_unload_table(ddb_handle);
- return_ACPI_STATUS(status);
- }
- }
-
- status = acpi_get_table_by_index(table_index, &table);
- if (ACPI_SUCCESS(status)) {
- ACPI_INFO((AE_INFO,
- "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]",
- table->signature, table->oem_id,
- table->oem_table_id));
- }
-
- /* Invoke table handler if present */
-
- if (acpi_gbl_table_handler) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
- acpi_gbl_table_handler_context);
- }
-
- *return_desc = ddb_handle;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_load_op
- *
- * PARAMETERS: obj_desc - Region or Buffer/Field where the table will be
- * obtained
- * Target - Where a handle to the table will be stored
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load an ACPI table from a field or operation region
- *
- * NOTE: Region Fields (Field, bank_field, index_fields) are resolved to buffer
- * objects before this code is reached.
- *
- * If source is an operation region, it must refer to system_memory, as
- * per the ACPI specification.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_load_op(union acpi_operand_object *obj_desc,
- union acpi_operand_object *target,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *ddb_handle;
- struct acpi_table_header *table;
- struct acpi_table_desc table_desc;
- u32 table_index;
- acpi_status status;
- u32 length;
-
- ACPI_FUNCTION_TRACE(ex_load_op);
-
- ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
-
- /* Source Object can be either an op_region or a Buffer/Field */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_REGION:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Load table from Region %p\n", obj_desc));
-
- /* Region must be system_memory (from ACPI spec) */
-
- if (obj_desc->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) {
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /*
- * If the Region Address and Length have not been previously evaluated,
- * evaluate them now and save the results.
- */
- if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_region_arguments(obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Map the table header and get the actual table length. The region
- * length is not guaranteed to be the same as the table length.
- */
- table = acpi_os_map_memory(obj_desc->region.address,
- sizeof(struct acpi_table_header));
- if (!table) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- length = table->length;
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-
- /* Must have at least an ACPI table header */
-
- if (length < sizeof(struct acpi_table_header)) {
- return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
- }
-
- /*
- * The memory region is not guaranteed to remain stable and we must
- * copy the table to a local buffer. For example, the memory region
- * is corrupted after suspend on some machines. Dynamically loaded
- * tables are usually small, so this overhead is minimal.
- */
-
- /* Allocate a buffer for the table */
-
- table_desc.pointer = ACPI_ALLOCATE(length);
- if (!table_desc.pointer) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Map the entire table and copy it */
-
- table = acpi_os_map_memory(obj_desc->region.address, length);
- if (!table) {
- ACPI_FREE(table_desc.pointer);
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ACPI_MEMCPY(table_desc.pointer, table, length);
- acpi_os_unmap_memory(table, length);
-
- table_desc.address = obj_desc->region.address;
- break;
-
- case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Load table from Buffer or Field %p\n",
- obj_desc));
-
- /* Must have at least an ACPI table header */
-
- if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) {
- return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
- }
-
- /* Get the actual table length from the table header */
-
- table =
- ACPI_CAST_PTR(struct acpi_table_header,
- obj_desc->buffer.pointer);
- length = table->length;
-
- /* Table cannot extend beyond the buffer */
-
- if (length > obj_desc->buffer.length) {
- return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
- }
- if (length < sizeof(struct acpi_table_header)) {
- return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
- }
-
- /*
- * Copy the table from the buffer because the buffer could be modified
- * or even deleted in the future
- */
- table_desc.pointer = ACPI_ALLOCATE(length);
- if (!table_desc.pointer) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ACPI_MEMCPY(table_desc.pointer, table, length);
- table_desc.address = ACPI_TO_INTEGER(table_desc.pointer);
- break;
-
- default:
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* Validate table checksum (will not get validated in tb_add_table) */
-
- status = acpi_tb_verify_checksum(table_desc.pointer, length);
- if (ACPI_FAILURE(status)) {
- ACPI_FREE(table_desc.pointer);
- return_ACPI_STATUS(status);
- }
-
- /* Complete the table descriptor */
-
- table_desc.length = length;
- table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED;
-
- /* Install the new table into the local data structures */
-
- status = acpi_tb_add_table(&table_desc, &table_index);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * Add the table to the namespace.
- *
- * Note: Load the table objects relative to the root of the namespace.
- * This appears to go against the ACPI specification, but we do it for
- * compatibility with other ACPI implementations.
- */
- status =
- acpi_ex_add_table(table_index, acpi_gbl_root_node, &ddb_handle);
- if (ACPI_FAILURE(status)) {
-
- /* On error, table_ptr was deallocated above */
-
- return_ACPI_STATUS(status);
- }
-
- /* Store the ddb_handle into the Target operand */
-
- status = acpi_ex_store(ddb_handle, target, walk_state);
- if (ACPI_FAILURE(status)) {
- (void)acpi_ex_unload_table(ddb_handle);
-
- /* table_ptr was deallocated above */
-
- acpi_ut_remove_reference(ddb_handle);
- return_ACPI_STATUS(status);
- }
-
- /* Invoke table handler if present */
-
- if (acpi_gbl_table_handler) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD,
- table_desc.pointer,
- acpi_gbl_table_handler_context);
- }
-
- cleanup:
- if (ACPI_FAILURE(status)) {
-
- /* Delete allocated table buffer */
-
- acpi_tb_delete_table(&table_desc);
- }
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_unload_table
- *
- * PARAMETERS: ddb_handle - Handle to a previously loaded table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Unload an ACPI table
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *table_desc = ddb_handle;
- u32 table_index;
- struct acpi_table_header *table;
-
- ACPI_FUNCTION_TRACE(ex_unload_table);
-
- /*
- * Validate the handle
- * Although the handle is partially validated in acpi_ex_reconfiguration(),
- * when it calls acpi_ex_resolve_operands(), the handle is more completely
- * validated here.
- */
- if ((!ddb_handle) ||
- (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) ||
- (ACPI_GET_OBJECT_TYPE(ddb_handle) != ACPI_TYPE_LOCAL_REFERENCE)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Get the table index from the ddb_handle */
-
- table_index = table_desc->reference.value;
-
- /* Invoke table handler if present */
-
- if (acpi_gbl_table_handler) {
- status = acpi_get_table_by_index(table_index, &table);
- if (ACPI_SUCCESS(status)) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD,
- table,
- acpi_gbl_table_handler_context);
- }
- }
-
- /*
- * Delete the entire namespace under this table Node
- * (Offset contains the table_id)
- */
- acpi_tb_delete_namespace_by_owner(table_index);
- (void)acpi_tb_release_owner_id(table_index);
-
- acpi_tb_set_table_loaded_flag(table_index, FALSE);
-
- /* Table unloaded, remove a reference to the ddb_handle object */
-
- acpi_ut_remove_reference(ddb_handle);
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exconvrt - Object conversion routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exconvrt")
-
-/* Local prototypes */
-static u32
-acpi_ex_convert_to_ascii(acpi_integer integer,
- u16 base, u8 * string, u8 max_length);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_integer
- *
- * PARAMETERS: obj_desc - Object to be converted. Must be an
- * Integer, Buffer, or String
- * result_desc - Where the new Integer object is returned
- * Flags - Used for string conversion
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an ACPI Object to an integer.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
- union acpi_operand_object **result_desc, u32 flags)
-{
- union acpi_operand_object *return_desc;
- u8 *pointer;
- acpi_integer result;
- u32 i;
- u32 count;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc);
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_INTEGER:
-
- /* No conversion necessary */
-
- *result_desc = obj_desc;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_STRING:
-
- /* Note: Takes advantage of common buffer/string fields */
-
- pointer = obj_desc->buffer.pointer;
- count = obj_desc->buffer.length;
- break;
-
- default:
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /*
- * Convert the buffer/string to an integer. Note that both buffers and
- * strings are treated as raw data - we don't convert ascii to hex for
- * strings.
- *
- * There are two terminating conditions for the loop:
- * 1) The size of an integer has been reached, or
- * 2) The end of the buffer or string has been reached
- */
- result = 0;
-
- /* String conversion is different than Buffer conversion */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_STRING:
-
- /*
- * Convert string to an integer - for most cases, the string must be
- * hexadecimal as per the ACPI specification. The only exception (as
- * of ACPI 3.0) is that the to_integer() operator allows both decimal
- * and hexadecimal strings (hex prefixed with "0x").
- */
- status = acpi_ut_strtoul64((char *)pointer, flags, &result);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Check for zero-length buffer */
-
- if (!count) {
- return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
- }
-
- /* Transfer no more than an integer's worth of data */
-
- if (count > acpi_gbl_integer_byte_width) {
- count = acpi_gbl_integer_byte_width;
- }
-
- /*
- * Convert buffer to an integer - we simply grab enough raw data
- * from the buffer to fill an integer
- */
- for (i = 0; i < count; i++) {
- /*
- * Get next byte and shift it into the Result.
- * Little endian is used, meaning that the first byte of the buffer
- * is the LSB of the integer
- */
- result |= (((acpi_integer) pointer[i]) << (i * 8));
- }
- break;
-
- default:
-
- /* No other types can get here */
- break;
- }
-
- /* Create a new integer */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(result)));
-
- /* Save the Result */
-
- return_desc->integer.value = result;
- acpi_ex_truncate_for32bit_table(return_desc);
- *result_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_buffer
- *
- * PARAMETERS: obj_desc - Object to be converted. Must be an
- * Integer, Buffer, or String
- * result_desc - Where the new buffer object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an ACPI Object to a Buffer
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
- union acpi_operand_object **result_desc)
-{
- union acpi_operand_object *return_desc;
- u8 *new_buf;
-
- ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc);
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_BUFFER:
-
- /* No conversion necessary */
-
- *result_desc = obj_desc;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_TYPE_INTEGER:
-
- /*
- * Create a new Buffer object.
- * Need enough space for one integer
- */
- return_desc =
- acpi_ut_create_buffer_object(acpi_gbl_integer_byte_width);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Copy the integer to the buffer, LSB first */
-
- new_buf = return_desc->buffer.pointer;
- ACPI_MEMCPY(new_buf,
- &obj_desc->integer.value,
- acpi_gbl_integer_byte_width);
- break;
-
- case ACPI_TYPE_STRING:
-
- /*
- * Create a new Buffer object
- * Size will be the string length
- *
- * NOTE: Add one to the string length to include the null terminator.
- * The ACPI spec is unclear on this subject, but there is existing
- * ASL/AML code that depends on the null being transferred to the new
- * buffer.
- */
- return_desc = acpi_ut_create_buffer_object((acpi_size)
- obj_desc->string.
- length + 1);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Copy the string to the buffer */
-
- new_buf = return_desc->buffer.pointer;
- ACPI_STRNCPY((char *)new_buf, (char *)obj_desc->string.pointer,
- obj_desc->string.length);
- break;
-
- default:
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /* Mark buffer initialized */
-
- return_desc->common.flags |= AOPOBJ_DATA_VALID;
- *result_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_ascii
- *
- * PARAMETERS: Integer - Value to be converted
- * Base - ACPI_STRING_DECIMAL or ACPI_STRING_HEX
- * String - Where the string is returned
- * data_width - Size of data item to be converted, in bytes
- *
- * RETURN: Actual string length
- *
- * DESCRIPTION: Convert an ACPI Integer to a hex or decimal string
- *
- ******************************************************************************/
-
-static u32
-acpi_ex_convert_to_ascii(acpi_integer integer,
- u16 base, u8 * string, u8 data_width)
-{
- acpi_integer digit;
- u32 i;
- u32 j;
- u32 k = 0;
- u32 hex_length;
- u32 decimal_length;
- u32 remainder;
- u8 supress_zeros;
-
- ACPI_FUNCTION_ENTRY();
-
- switch (base) {
- case 10:
-
- /* Setup max length for the decimal number */
-
- switch (data_width) {
- case 1:
- decimal_length = ACPI_MAX8_DECIMAL_DIGITS;
- break;
-
- case 4:
- decimal_length = ACPI_MAX32_DECIMAL_DIGITS;
- break;
-
- case 8:
- default:
- decimal_length = ACPI_MAX64_DECIMAL_DIGITS;
- break;
- }
-
- supress_zeros = TRUE; /* No leading zeros */
- remainder = 0;
-
- for (i = decimal_length; i > 0; i--) {
-
- /* Divide by nth factor of 10 */
-
- digit = integer;
- for (j = 0; j < i; j++) {
- (void)acpi_ut_short_divide(digit, 10, &digit,
- &remainder);
- }
-
- /* Handle leading zeros */
-
- if (remainder != 0) {
- supress_zeros = FALSE;
- }
-
- if (!supress_zeros) {
- string[k] = (u8) (ACPI_ASCII_ZERO + remainder);
- k++;
- }
- }
- break;
-
- case 16:
-
- /* hex_length: 2 ascii hex chars per data byte */
-
- hex_length = ACPI_MUL_2(data_width);
- for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) {
-
- /* Get one hex digit, most significant digits first */
-
- string[k] =
- (u8) acpi_ut_hex_to_ascii_char(integer,
- ACPI_MUL_4(j));
- k++;
- }
- break;
-
- default:
- return (0);
- }
-
- /*
- * Since leading zeros are suppressed, we must check for the case where
- * the integer equals 0
- *
- * Finally, null terminate the string and return the length
- */
- if (!k) {
- string[0] = ACPI_ASCII_ZERO;
- k = 1;
- }
-
- string[k] = 0;
- return ((u32) k);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_string
- *
- * PARAMETERS: obj_desc - Object to be converted. Must be an
- * Integer, Buffer, or String
- * result_desc - Where the string object is returned
- * Type - String flags (base and conversion type)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an ACPI Object to a string
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
- union acpi_operand_object ** result_desc, u32 type)
-{
- union acpi_operand_object *return_desc;
- u8 *new_buf;
- u32 i;
- u32 string_length = 0;
- u16 base = 16;
- u8 separator = ',';
-
- ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc);
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_STRING:
-
- /* No conversion necessary */
-
- *result_desc = obj_desc;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_TYPE_INTEGER:
-
- switch (type) {
- case ACPI_EXPLICIT_CONVERT_DECIMAL:
-
- /* Make room for maximum decimal number */
-
- string_length = ACPI_MAX_DECIMAL_DIGITS;
- base = 10;
- break;
-
- default:
-
- /* Two hex string characters for each integer byte */
-
- string_length = ACPI_MUL_2(acpi_gbl_integer_byte_width);
- break;
- }
-
- /*
- * Create a new String
- * Need enough space for one ASCII integer (plus null terminator)
- */
- return_desc =
- acpi_ut_create_string_object((acpi_size) string_length);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- new_buf = return_desc->buffer.pointer;
-
- /* Convert integer to string */
-
- string_length =
- acpi_ex_convert_to_ascii(obj_desc->integer.value, base,
- new_buf,
- acpi_gbl_integer_byte_width);
-
- /* Null terminate at the correct place */
-
- return_desc->string.length = string_length;
- new_buf[string_length] = 0;
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Setup string length, base, and separator */
-
- switch (type) {
- case ACPI_EXPLICIT_CONVERT_DECIMAL: /* Used by to_decimal_string */
- /*
- * From ACPI: "If Data is a buffer, it is converted to a string of
- * decimal values separated by commas."
- */
- base = 10;
-
- /*
- * Calculate the final string length. Individual string values
- * are variable length (include separator for each)
- */
- for (i = 0; i < obj_desc->buffer.length; i++) {
- if (obj_desc->buffer.pointer[i] >= 100) {
- string_length += 4;
- } else if (obj_desc->buffer.pointer[i] >= 10) {
- string_length += 3;
- } else {
- string_length += 2;
- }
- }
- break;
-
- case ACPI_IMPLICIT_CONVERT_HEX:
- /*
- * From the ACPI spec:
- *"The entire contents of the buffer are converted to a string of
- * two-character hexadecimal numbers, each separated by a space."
- */
- separator = ' ';
- string_length = (obj_desc->buffer.length * 3);
- break;
-
- case ACPI_EXPLICIT_CONVERT_HEX: /* Used by to_hex_string */
- /*
- * From ACPI: "If Data is a buffer, it is converted to a string of
- * hexadecimal values separated by commas."
- */
- string_length = (obj_desc->buffer.length * 3);
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Create a new string object and string buffer
- * (-1 because of extra separator included in string_length from above)
- * Allow creation of zero-length strings from zero-length buffers.
- */
- if (string_length) {
- string_length--;
- }
-
- return_desc = acpi_ut_create_string_object((acpi_size)
- string_length);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- new_buf = return_desc->buffer.pointer;
-
- /*
- * Convert buffer bytes to hex or decimal values
- * (separated by commas or spaces)
- */
- for (i = 0; i < obj_desc->buffer.length; i++) {
- new_buf += acpi_ex_convert_to_ascii((acpi_integer)
- obj_desc->buffer.
- pointer[i], base,
- new_buf, 1);
- *new_buf++ = separator; /* each separated by a comma or space */
- }
-
- /*
- * Null terminate the string
- * (overwrites final comma/space from above)
- */
- if (obj_desc->buffer.length) {
- new_buf--;
- }
- *new_buf = 0;
- break;
-
- default:
- return_ACPI_STATUS(AE_TYPE);
- }
-
- *result_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_convert_to_target_type
- *
- * PARAMETERS: destination_type - Current type of the destination
- * source_desc - Source object to be converted.
- * result_desc - Where the converted object is returned
- * walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Implements "implicit conversion" rules for storing an object.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_convert_to_target_type(acpi_object_type destination_type,
- union acpi_operand_object *source_desc,
- union acpi_operand_object **result_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_convert_to_target_type);
-
- /* Default behavior */
-
- *result_desc = source_desc;
-
- /*
- * If required by the target,
- * perform implicit conversion on the source before we store it.
- */
- switch (GET_CURRENT_ARG_TYPE(walk_state->op_info->runtime_args)) {
- case ARGI_SIMPLE_TARGET:
- case ARGI_FIXED_TARGET:
- case ARGI_INTEGER_REF: /* Handles Increment, Decrement cases */
-
- switch (destination_type) {
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- /*
- * Named field can always handle conversions
- */
- break;
-
- default:
- /* No conversion allowed for these types */
-
- if (destination_type !=
- ACPI_GET_OBJECT_TYPE(source_desc)) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Explicit operator, will store (%s) over existing type (%s)\n",
- acpi_ut_get_object_type_name
- (source_desc),
- acpi_ut_get_type_name
- (destination_type)));
- status = AE_TYPE;
- }
- }
- break;
-
- case ARGI_TARGETREF:
-
- switch (destination_type) {
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
- /*
- * These types require an Integer operand. We can convert
- * a Buffer or a String to an Integer if necessary.
- */
- status =
- acpi_ex_convert_to_integer(source_desc, result_desc,
- 16);
- break;
-
- case ACPI_TYPE_STRING:
- /*
- * The operand must be a String. We can convert an
- * Integer or Buffer if necessary
- */
- status =
- acpi_ex_convert_to_string(source_desc, result_desc,
- ACPI_IMPLICIT_CONVERT_HEX);
- break;
-
- case ACPI_TYPE_BUFFER:
- /*
- * The operand must be a Buffer. We can convert an
- * Integer or String if necessary
- */
- status =
- acpi_ex_convert_to_buffer(source_desc, result_desc);
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Bad destination type during conversion: %X",
- destination_type));
- status = AE_AML_INTERNAL;
- break;
- }
- break;
-
- case ARGI_REFERENCE:
- /*
- * create_xxxx_field cases - we are storing the field object into the name
- */
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Unknown Target type ID 0x%X AmlOpcode %X DestType %s",
- GET_CURRENT_ARG_TYPE(walk_state->op_info->
- runtime_args),
- walk_state->opcode,
- acpi_ut_get_type_name(destination_type)));
- status = AE_AML_INTERNAL;
- }
-
- /*
- * Source-to-Target conversion semantics:
- *
- * If conversion to the target type cannot be performed, then simply
- * overwrite the target with the new object and type.
- */
- if (status == AE_TYPE) {
- status = AE_OK;
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: excreate - Named object creation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("excreate")
-#ifndef ACPI_NO_METHOD_EXECUTION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_alias
- *
- * PARAMETERS: walk_state - Current state, contains operands
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new named alias
- *
- ******************************************************************************/
-acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state)
-{
- struct acpi_namespace_node *target_node;
- struct acpi_namespace_node *alias_node;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_create_alias);
-
- /* Get the source/alias operands (both namespace nodes) */
-
- alias_node = (struct acpi_namespace_node *)walk_state->operands[0];
- target_node = (struct acpi_namespace_node *)walk_state->operands[1];
-
- if ((target_node->type == ACPI_TYPE_LOCAL_ALIAS) ||
- (target_node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
- /*
- * Dereference an existing alias so that we don't create a chain
- * of aliases. With this code, we guarantee that an alias is
- * always exactly one level of indirection away from the
- * actual aliased name.
- */
- target_node =
- ACPI_CAST_PTR(struct acpi_namespace_node,
- target_node->object);
- }
-
- /*
- * For objects that can never change (i.e., the NS node will
- * permanently point to the same object), we can simply attach
- * the object to the new NS node. For other objects (such as
- * Integers, buffers, etc.), we have to point the Alias node
- * to the original Node.
- */
- switch (target_node->type) {
-
- /* For these types, the sub-object can change dynamically via a Store */
-
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_PACKAGE:
- case ACPI_TYPE_BUFFER_FIELD:
-
- /*
- * These types open a new scope, so we need the NS node in order to access
- * any children.
- */
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
- case ACPI_TYPE_LOCAL_SCOPE:
-
- /*
- * The new alias has the type ALIAS and points to the original
- * NS node, not the object itself.
- */
- alias_node->type = ACPI_TYPE_LOCAL_ALIAS;
- alias_node->object =
- ACPI_CAST_PTR(union acpi_operand_object, target_node);
- break;
-
- case ACPI_TYPE_METHOD:
-
- /*
- * Control method aliases need to be differentiated
- */
- alias_node->type = ACPI_TYPE_LOCAL_METHOD_ALIAS;
- alias_node->object =
- ACPI_CAST_PTR(union acpi_operand_object, target_node);
- break;
-
- default:
-
- /* Attach the original source object to the new Alias Node */
-
- /*
- * The new alias assumes the type of the target, and it points
- * to the same object. The reference count of the object has an
- * additional reference to prevent deletion out from under either the
- * target node or the alias Node
- */
- status = acpi_ns_attach_object(alias_node,
- acpi_ns_get_attached_object
- (target_node),
- target_node->type);
- break;
- }
-
- /* Since both operands are Nodes, we don't need to delete them */
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_event
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new event object
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE(ex_create_event);
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Create the actual OS semaphore, with zero initial units -- meaning
- * that the event is created in an unsignalled state
- */
- status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0,
- &obj_desc->event.os_semaphore);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Attach object to the Node */
-
- status =
- acpi_ns_attach_object((struct acpi_namespace_node *)walk_state->
- operands[0], obj_desc, ACPI_TYPE_EVENT);
-
- cleanup:
- /*
- * Remove local reference to the object (on error, will cause deletion
- * of both object and semaphore if present.)
- */
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_mutex
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new mutex object
- *
- * Mutex (Name[0], sync_level[1])
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS);
-
- /* Create the new mutex object */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Create the actual OS Mutex */
-
- status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Init object and attach to NS node */
-
- obj_desc->mutex.sync_level =
- (u8) walk_state->operands[1]->integer.value;
- obj_desc->mutex.node =
- (struct acpi_namespace_node *)walk_state->operands[0];
-
- status =
- acpi_ns_attach_object(obj_desc->mutex.node, obj_desc,
- ACPI_TYPE_MUTEX);
-
- cleanup:
- /*
- * Remove local reference to the object (on error, will cause deletion
- * of both object and semaphore if present.)
- */
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_region
- *
- * PARAMETERS: aml_start - Pointer to the region declaration AML
- * aml_length - Max length of the declaration AML
- * region_space - space_iD for the region
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new operation region object
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_create_region(u8 * aml_start,
- u32 aml_length,
- u8 region_space, struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- union acpi_operand_object *region_obj2;
-
- ACPI_FUNCTION_TRACE(ex_create_region);
-
- /* Get the Namespace Node */
-
- node = walk_state->op->common.node;
-
- /*
- * If the region object is already attached to this node,
- * just return
- */
- if (acpi_ns_get_attached_object(node)) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Space ID must be one of the predefined IDs, or in the user-defined
- * range
- */
- if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) &&
- (region_space < ACPI_USER_REGION_BEGIN)) {
- ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X",
- region_space));
- return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Region Type - %s (%X)\n",
- acpi_ut_get_region_name(region_space), region_space));
-
- /* Create the region descriptor */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_REGION);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Remember location in AML stream of address & length
- * operands since they need to be evaluated at run time.
- */
- region_obj2 = obj_desc->common.next_object;
- region_obj2->extra.aml_start = aml_start;
- region_obj2->extra.aml_length = aml_length;
-
- /* Init the region from the operands */
-
- obj_desc->region.space_id = region_space;
- obj_desc->region.address = 0;
- obj_desc->region.length = 0;
- obj_desc->region.node = node;
-
- /* Install the new region object in the parent Node */
-
- status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION);
-
- cleanup:
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_processor
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new processor object and populate the fields
- *
- * Processor (Name[0], cpu_iD[1], pblock_addr[2], pblock_length[3])
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state);
-
- /* Create the processor object */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_PROCESSOR);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize the processor object from the operands */
-
- obj_desc->processor.proc_id = (u8) operand[1]->integer.value;
- obj_desc->processor.length = (u8) operand[3]->integer.value;
- obj_desc->processor.address =
- (acpi_io_address) operand[2]->integer.value;
-
- /* Install the processor object in the parent Node */
-
- status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
- obj_desc, ACPI_TYPE_PROCESSOR);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_power_resource
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new power_resource object and populate the fields
- *
- * power_resource (Name[0], system_level[1], resource_order[2])
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- acpi_status status;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state);
-
- /* Create the power resource object */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_POWER);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize the power object from the operands */
-
- obj_desc->power_resource.system_level = (u8) operand[1]->integer.value;
- obj_desc->power_resource.resource_order =
- (u16) operand[2]->integer.value;
-
- /* Install the power resource object in the parent Node */
-
- status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
- obj_desc, ACPI_TYPE_POWER);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_create_method
- *
- * PARAMETERS: aml_start - First byte of the method's AML
- * aml_length - AML byte count for this method
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new method object
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_create_method(u8 * aml_start,
- u32 aml_length, struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *obj_desc;
- acpi_status status;
- u8 method_flags;
-
- ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state);
-
- /* Create a new method object */
-
- obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto exit;
- }
-
- /* Save the method's AML pointer and length */
-
- obj_desc->method.aml_start = aml_start;
- obj_desc->method.aml_length = aml_length;
-
- /*
- * Disassemble the method flags. Split off the Arg Count
- * for efficiency
- */
- method_flags = (u8) operand[1]->integer.value;
-
- obj_desc->method.method_flags =
- (u8) (method_flags & ~AML_METHOD_ARG_COUNT);
- obj_desc->method.param_count =
- (u8) (method_flags & AML_METHOD_ARG_COUNT);
-
- /*
- * Get the sync_level. If method is serialized, a mutex will be
- * created for this method when it is parsed.
- */
- if (method_flags & AML_METHOD_SERIALIZED) {
- /*
- * ACPI 1.0: sync_level = 0
- * ACPI 2.0: sync_level = sync_level in method declaration
- */
- obj_desc->method.sync_level = (u8)
- ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4);
- }
-
- /* Attach the new object to the method Node */
-
- status = acpi_ns_attach_object((struct acpi_namespace_node *)operand[0],
- obj_desc, ACPI_TYPE_METHOD);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
-
- exit:
- /* Remove a reference to the operand */
-
- acpi_ut_remove_reference(operand[1]);
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exdump - Interpreter debug output routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exdump")
-
-/*
- * The following routines are used for debug output only
- */
-#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-/* Local prototypes */
-static void acpi_ex_out_string(char *title, char *value);
-
-static void acpi_ex_out_pointer(char *title, void *value);
-
-static void
-acpi_ex_dump_object(union acpi_operand_object *obj_desc,
- struct acpi_exdump_info *info);
-
-static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc);
-
-static void
-acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
- u32 level, u32 index);
-
-/*******************************************************************************
- *
- * Object Descriptor info tables
- *
- * Note: The first table entry must be an INIT opcode and must contain
- * the table length (number of table entries)
- *
- ******************************************************************************/
-
-static struct acpi_exdump_info acpi_ex_dump_integer[2] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_integer), NULL},
- {ACPI_EXD_UINT64, ACPI_EXD_OFFSET(integer.value), "Value"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_string[4] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_string), NULL},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(string.length), "Length"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(string.pointer), "Pointer"},
- {ACPI_EXD_STRING, 0, NULL}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_buffer[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer), NULL},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(buffer.length), "Length"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.pointer), "Pointer"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer.node), "Parent Node"},
- {ACPI_EXD_BUFFER, 0, NULL}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_package[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_package), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(package.flags), "Flags"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(package.count), "Elements"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(package.elements), "Element List"},
- {ACPI_EXD_PACKAGE, 0, NULL}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_device[4] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_device), NULL},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.handler), "Handler"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.system_notify),
- "System Notify"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(device.device_notify),
- "Device Notify"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_event[2] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_event), NULL},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.os_semaphore), "OsSemaphore"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_method[8] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_mutex[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"},
- {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth),
- "Acquire Depth"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_region[7] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.space_id), "Space Id"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(region.flags), "Flags"},
- {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(region.address), "Address"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(region.length), "Length"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.handler), "Handler"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(region.next), "Next"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_power[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_power), NULL},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.system_level),
- "System Level"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(power_resource.resource_order),
- "Resource Order"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.system_notify),
- "System Notify"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(power_resource.device_notify),
- "Device Notify"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_processor[7] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_processor), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.proc_id), "Processor ID"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(processor.length), "Length"},
- {ACPI_EXD_ADDRESS, ACPI_EXD_OFFSET(processor.address), "Address"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.system_notify),
- "System Notify"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.device_notify),
- "Device Notify"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(processor.handler), "Handler"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_thermal[4] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_thermal), NULL},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.system_notify),
- "System Notify"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.device_notify),
- "Device Notify"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(thermal_zone.handler), "Handler"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_buffer_field[3] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_buffer_field), NULL},
- {ACPI_EXD_FIELD, 0, NULL},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(buffer_field.buffer_obj),
- "Buffer Object"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_region_field[3] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_region_field), NULL},
- {ACPI_EXD_FIELD, 0, NULL},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(field.region_obj), "Region Object"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_bank_field[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL},
- {ACPI_EXD_FIELD, 0, NULL},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(bank_field.value), "Value"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.region_obj),
- "Region Object"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(bank_field.bank_obj), "Bank Object"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_index_field[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_bank_field), NULL},
- {ACPI_EXD_FIELD, 0, NULL},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(index_field.value), "Value"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.index_obj),
- "Index Object"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.data_obj), "Data Object"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_reference[8] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_reference), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.class), "Class"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.value), "Value"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.node), "Node"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"},
- {ACPI_EXD_REFERENCE, 0, NULL}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_address_handler[6] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_address_handler),
- NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(address_space.space_id), "Space Id"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.next), "Next"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.region_list),
- "Region List"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.node), "Node"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(address_space.context), "Context"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_notify[3] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_notify), NULL},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.node), "Node"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(notify.context), "Context"}
-};
-
-/* Miscellaneous tables */
-
-static struct acpi_exdump_info acpi_ex_dump_common[4] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_common), NULL},
- {ACPI_EXD_TYPE, 0, NULL},
- {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(common.reference_count),
- "Reference Count"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common.flags), "Flags"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_field_common[7] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_field_common), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.field_flags),
- "Field Flags"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.access_byte_width),
- "Access Byte Width"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.bit_length),
- "Bit Length"},
- {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(common_field.start_field_bit_offset),
- "Field Bit Offset"},
- {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(common_field.base_byte_offset),
- "Base Byte Offset"},
- {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"}
-};
-
-static struct acpi_exdump_info acpi_ex_dump_node[5] = {
- {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL},
- {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"},
- {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"},
- {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"},
- {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"}
-};
-
-/* Dispatch table, indexed by object type */
-
-static struct acpi_exdump_info *acpi_ex_dump_info[] = {
- NULL,
- acpi_ex_dump_integer,
- acpi_ex_dump_string,
- acpi_ex_dump_buffer,
- acpi_ex_dump_package,
- NULL,
- acpi_ex_dump_device,
- acpi_ex_dump_event,
- acpi_ex_dump_method,
- acpi_ex_dump_mutex,
- acpi_ex_dump_region,
- acpi_ex_dump_power,
- acpi_ex_dump_processor,
- acpi_ex_dump_thermal,
- acpi_ex_dump_buffer_field,
- NULL,
- NULL,
- acpi_ex_dump_region_field,
- acpi_ex_dump_bank_field,
- acpi_ex_dump_index_field,
- acpi_ex_dump_reference,
- NULL,
- NULL,
- acpi_ex_dump_notify,
- acpi_ex_dump_address_handler,
- NULL,
- NULL,
- NULL
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_object
- *
- * PARAMETERS: obj_desc - Descriptor to dump
- * Info - Info table corresponding to this object
- * type
- *
- * RETURN: None
- *
- * DESCRIPTION: Walk the info table for this object
- *
- ******************************************************************************/
-
-static void
-acpi_ex_dump_object(union acpi_operand_object *obj_desc,
- struct acpi_exdump_info *info)
-{
- u8 *target;
- char *name;
- u8 count;
-
- if (!info) {
- acpi_os_printf
- ("ExDumpObject: Display not implemented for object type %s\n",
- acpi_ut_get_object_type_name(obj_desc));
- return;
- }
-
- /* First table entry must contain the table length (# of table entries) */
-
- count = info->offset;
-
- while (count) {
- target = ACPI_ADD_PTR(u8, obj_desc, info->offset);
- name = info->name;
-
- switch (info->opcode) {
- case ACPI_EXD_INIT:
- break;
-
- case ACPI_EXD_TYPE:
- acpi_ex_out_string("Type",
- acpi_ut_get_object_type_name
- (obj_desc));
- break;
-
- case ACPI_EXD_UINT8:
-
- acpi_os_printf("%20s : %2.2X\n", name, *target);
- break;
-
- case ACPI_EXD_UINT16:
-
- acpi_os_printf("%20s : %4.4X\n", name,
- ACPI_GET16(target));
- break;
-
- case ACPI_EXD_UINT32:
-
- acpi_os_printf("%20s : %8.8X\n", name,
- ACPI_GET32(target));
- break;
-
- case ACPI_EXD_UINT64:
-
- acpi_os_printf("%20s : %8.8X%8.8X\n", "Value",
- ACPI_FORMAT_UINT64(ACPI_GET64(target)));
- break;
-
- case ACPI_EXD_POINTER:
- case ACPI_EXD_ADDRESS:
-
- acpi_ex_out_pointer(name,
- *ACPI_CAST_PTR(void *, target));
- break;
-
- case ACPI_EXD_STRING:
-
- acpi_ut_print_string(obj_desc->string.pointer,
- ACPI_UINT8_MAX);
- acpi_os_printf("\n");
- break;
-
- case ACPI_EXD_BUFFER:
-
- ACPI_DUMP_BUFFER(obj_desc->buffer.pointer,
- obj_desc->buffer.length);
- break;
-
- case ACPI_EXD_PACKAGE:
-
- /* Dump the package contents */
-
- acpi_os_printf("\nPackage Contents:\n");
- acpi_ex_dump_package_obj(obj_desc, 0, 0);
- break;
-
- case ACPI_EXD_FIELD:
-
- acpi_ex_dump_object(obj_desc,
- acpi_ex_dump_field_common);
- break;
-
- case ACPI_EXD_REFERENCE:
-
- acpi_ex_out_string("Class Name",
- (char *)
- acpi_ut_get_reference_name
- (obj_desc));
- acpi_ex_dump_reference_obj(obj_desc);
- break;
-
- default:
- acpi_os_printf("**** Invalid table opcode [%X] ****\n",
- info->opcode);
- return;
- }
-
- info++;
- count--;
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_operand
- *
- * PARAMETERS: *obj_desc - Pointer to entry to be dumped
- * Depth - Current nesting depth
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump an operand object
- *
- ******************************************************************************/
-
-void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
-{
- u32 length;
- u32 index;
-
- ACPI_FUNCTION_NAME(ex_dump_operand)
-
- if (!((ACPI_LV_EXEC & acpi_dbg_level)
- && (_COMPONENT & acpi_dbg_layer))) {
- return;
- }
-
- if (!obj_desc) {
-
- /* This could be a null element of a package */
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n"));
- return;
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p Namespace Node: ",
- obj_desc));
- ACPI_DUMP_ENTRY(obj_desc, ACPI_LV_EXEC);
- return;
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "%p is not a node or operand object: [%s]\n",
- obj_desc,
- acpi_ut_get_descriptor_name(obj_desc)));
- ACPI_DUMP_BUFFER(obj_desc, sizeof(union acpi_operand_object));
- return;
- }
-
- /* obj_desc is a valid object */
-
- if (depth > 0) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%*s[%u] %p ",
- depth, " ", depth, obj_desc));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%p ", obj_desc));
- }
-
- /* Decode object type */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- acpi_os_printf("Reference: [%s] ",
- acpi_ut_get_reference_name(obj_desc));
-
- switch (obj_desc->reference.class) {
- case ACPI_REFCLASS_DEBUG:
-
- acpi_os_printf("\n");
- break;
-
- case ACPI_REFCLASS_INDEX:
-
- acpi_os_printf("%p\n", obj_desc->reference.object);
- break;
-
- case ACPI_REFCLASS_TABLE:
-
- acpi_os_printf("Table Index %X\n",
- obj_desc->reference.value);
- break;
-
- case ACPI_REFCLASS_REFOF:
-
- acpi_os_printf("%p [%s]\n", obj_desc->reference.object,
- acpi_ut_get_type_name(((union
- acpi_operand_object
- *)
- obj_desc->
- reference.
- object)->common.
- type));
- break;
-
- case ACPI_REFCLASS_ARG:
-
- acpi_os_printf("%X", obj_desc->reference.value);
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-
- /* Value is an Integer */
-
- acpi_os_printf(" value is [%8.8X%8.8x]",
- ACPI_FORMAT_UINT64(obj_desc->
- integer.
- value));
- }
-
- acpi_os_printf("\n");
- break;
-
- case ACPI_REFCLASS_LOCAL:
-
- acpi_os_printf("%X", obj_desc->reference.value);
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-
- /* Value is an Integer */
-
- acpi_os_printf(" value is [%8.8X%8.8x]",
- ACPI_FORMAT_UINT64(obj_desc->
- integer.
- value));
- }
-
- acpi_os_printf("\n");
- break;
-
- case ACPI_REFCLASS_NAME:
-
- acpi_os_printf("- [%4.4s]\n",
- obj_desc->reference.node->name.ascii);
- break;
-
- default: /* Unknown reference class */
-
- acpi_os_printf("%2.2X\n", obj_desc->reference.class);
- break;
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- acpi_os_printf("Buffer length %.2X @ %p\n",
- obj_desc->buffer.length,
- obj_desc->buffer.pointer);
-
- /* Debug only -- dump the buffer contents */
-
- if (obj_desc->buffer.pointer) {
- length = obj_desc->buffer.length;
- if (length > 128) {
- length = 128;
- }
-
- acpi_os_printf
- ("Buffer Contents: (displaying length 0x%.2X)\n",
- length);
- ACPI_DUMP_BUFFER(obj_desc->buffer.pointer, length);
- }
- break;
-
- case ACPI_TYPE_INTEGER:
-
- acpi_os_printf("Integer %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(obj_desc->integer.value));
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- acpi_os_printf("Package [Len %X] ElementArray %p\n",
- obj_desc->package.count,
- obj_desc->package.elements);
-
- /*
- * If elements exist, package element pointer is valid,
- * and debug_level exceeds 1, dump package's elements.
- */
- if (obj_desc->package.count &&
- obj_desc->package.elements && acpi_dbg_level > 1) {
- for (index = 0; index < obj_desc->package.count;
- index++) {
- acpi_ex_dump_operand(obj_desc->package.
- elements[index],
- depth + 1);
- }
- }
- break;
-
- case ACPI_TYPE_REGION:
-
- acpi_os_printf("Region %s (%X)",
- acpi_ut_get_region_name(obj_desc->region.
- space_id),
- obj_desc->region.space_id);
-
- /*
- * If the address and length have not been evaluated,
- * don't print them.
- */
- if (!(obj_desc->region.flags & AOPOBJ_DATA_VALID)) {
- acpi_os_printf("\n");
- } else {
- acpi_os_printf(" base %8.8X%8.8X Length %X\n",
- ACPI_FORMAT_NATIVE_UINT(obj_desc->region.
- address),
- obj_desc->region.length);
- }
- break;
-
- case ACPI_TYPE_STRING:
-
- acpi_os_printf("String length %X @ %p ",
- obj_desc->string.length,
- obj_desc->string.pointer);
-
- acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX);
- acpi_os_printf("\n");
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- acpi_os_printf("BankField\n");
- break;
-
- case ACPI_TYPE_LOCAL_REGION_FIELD:
-
- acpi_os_printf
- ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n",
- obj_desc->field.bit_length,
- obj_desc->field.access_byte_width,
- obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK,
- obj_desc->field.field_flags & AML_FIELD_UPDATE_RULE_MASK,
- obj_desc->field.base_byte_offset,
- obj_desc->field.start_field_bit_offset);
-
- acpi_ex_dump_operand(obj_desc->field.region_obj, depth + 1);
- break;
-
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- acpi_os_printf("IndexField\n");
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n",
- obj_desc->buffer_field.bit_length,
- obj_desc->buffer_field.base_byte_offset,
- obj_desc->buffer_field.start_field_bit_offset);
-
- if (!obj_desc->buffer_field.buffer_obj) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "*NULL*\n"));
- } else
- if (ACPI_GET_OBJECT_TYPE(obj_desc->buffer_field.buffer_obj)
- != ACPI_TYPE_BUFFER) {
- acpi_os_printf("*not a Buffer*\n");
- } else {
- acpi_ex_dump_operand(obj_desc->buffer_field.buffer_obj,
- depth + 1);
- }
- break;
-
- case ACPI_TYPE_EVENT:
-
- acpi_os_printf("Event\n");
- break;
-
- case ACPI_TYPE_METHOD:
-
- acpi_os_printf("Method(%X) @ %p:%X\n",
- obj_desc->method.param_count,
- obj_desc->method.aml_start,
- obj_desc->method.aml_length);
- break;
-
- case ACPI_TYPE_MUTEX:
-
- acpi_os_printf("Mutex\n");
- break;
-
- case ACPI_TYPE_DEVICE:
-
- acpi_os_printf("Device\n");
- break;
-
- case ACPI_TYPE_POWER:
-
- acpi_os_printf("Power\n");
- break;
-
- case ACPI_TYPE_PROCESSOR:
-
- acpi_os_printf("Processor\n");
- break;
-
- case ACPI_TYPE_THERMAL:
-
- acpi_os_printf("Thermal\n");
- break;
-
- default:
- /* Unknown Type */
-
- acpi_os_printf("Unknown Type %X\n",
- ACPI_GET_OBJECT_TYPE(obj_desc));
- break;
- }
-
- return;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_operands
- *
- * PARAMETERS: Operands - A list of Operand objects
- * opcode_name - AML opcode name
- * num_operands - Operand count for this opcode
- *
- * DESCRIPTION: Dump the operands associated with the opcode
- *
- ******************************************************************************/
-
-void
-acpi_ex_dump_operands(union acpi_operand_object **operands,
- const char *opcode_name, u32 num_operands)
-{
- ACPI_FUNCTION_NAME(ex_dump_operands);
-
- if (!opcode_name) {
- opcode_name = "UNKNOWN";
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "**** Start operand dump for opcode [%s], %d operands\n",
- opcode_name, num_operands));
-
- if (num_operands == 0) {
- num_operands = 1;
- }
-
- /* Dump the individual operands */
-
- while (num_operands) {
- acpi_ex_dump_operand(*operands, 0);
- operands++;
- num_operands--;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "**** End operand dump for [%s]\n", opcode_name));
- return;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_out* functions
- *
- * PARAMETERS: Title - Descriptive text
- * Value - Value to be displayed
- *
- * DESCRIPTION: Object dump output formatting functions. These functions
- * reduce the number of format strings required and keeps them
- * all in one place for easy modification.
- *
- ******************************************************************************/
-
-static void acpi_ex_out_string(char *title, char *value)
-{
- acpi_os_printf("%20s : %s\n", title, value);
-}
-
-static void acpi_ex_out_pointer(char *title, void *value)
-{
- acpi_os_printf("%20s : %p\n", title, value);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_namespace_node
- *
- * PARAMETERS: Node - Descriptor to dump
- * Flags - Force display if TRUE
- *
- * DESCRIPTION: Dumps the members of the given.Node
- *
- ******************************************************************************/
-
-void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags)
-{
-
- ACPI_FUNCTION_ENTRY();
-
- if (!flags) {
- if (!((ACPI_LV_OBJECTS & acpi_dbg_level)
- && (_COMPONENT & acpi_dbg_layer))) {
- return;
- }
- }
-
- acpi_os_printf("%20s : %4.4s\n", "Name", acpi_ut_get_node_name(node));
- acpi_ex_out_string("Type", acpi_ut_get_type_name(node->type));
- acpi_ex_out_pointer("Attached Object",
- acpi_ns_get_attached_object(node));
- acpi_ex_out_pointer("Parent", acpi_ns_get_parent_node(node));
-
- acpi_ex_dump_object(ACPI_CAST_PTR(union acpi_operand_object, node),
- acpi_ex_dump_node);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_reference_obj
- *
- * PARAMETERS: Object - Descriptor to dump
- *
- * DESCRIPTION: Dumps a reference object
- *
- ******************************************************************************/
-
-static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc)
-{
- struct acpi_buffer ret_buf;
- acpi_status status;
-
- ret_buf.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-
- if (obj_desc->reference.class == ACPI_REFCLASS_NAME) {
- acpi_os_printf(" %p ", obj_desc->reference.node);
-
- status =
- acpi_ns_handle_to_pathname(obj_desc->reference.node,
- &ret_buf);
- if (ACPI_FAILURE(status)) {
- acpi_os_printf(" Could not convert name to pathname\n");
- } else {
- acpi_os_printf("%s\n", (char *)ret_buf.pointer);
- ACPI_FREE(ret_buf.pointer);
- }
- } else if (obj_desc->reference.object) {
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
- ACPI_DESC_TYPE_OPERAND) {
- acpi_os_printf(" Target: %p",
- obj_desc->reference.object);
- if (obj_desc->reference.class == ACPI_REFCLASS_TABLE) {
- acpi_os_printf(" Table Index: %X\n",
- obj_desc->reference.value);
- } else {
- acpi_os_printf(" Target: %p [%s]\n",
- obj_desc->reference.object,
- acpi_ut_get_type_name(((union
- acpi_operand_object
- *)
- obj_desc->
- reference.
- object)->
- common.
- type));
- }
- } else {
- acpi_os_printf(" Target: %p\n",
- obj_desc->reference.object);
- }
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_package_obj
- *
- * PARAMETERS: obj_desc - Descriptor to dump
- * Level - Indentation Level
- * Index - Package index for this object
- *
- * DESCRIPTION: Dumps the elements of the package
- *
- ******************************************************************************/
-
-static void
-acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc,
- u32 level, u32 index)
-{
- u32 i;
-
- /* Indentation and index output */
-
- if (level > 0) {
- for (i = 0; i < level; i++) {
- acpi_os_printf(" ");
- }
-
- acpi_os_printf("[%.2d] ", index);
- }
-
- acpi_os_printf("%p ", obj_desc);
-
- /* Null package elements are allowed */
-
- if (!obj_desc) {
- acpi_os_printf("[Null Object]\n");
- return;
- }
-
- /* Packages may only contain a few object types */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_INTEGER:
-
- acpi_os_printf("[Integer] = %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(obj_desc->integer.value));
- break;
-
- case ACPI_TYPE_STRING:
-
- acpi_os_printf("[String] Value: ");
- for (i = 0; i < obj_desc->string.length; i++) {
- acpi_os_printf("%c", obj_desc->string.pointer[i]);
- }
- acpi_os_printf("\n");
- break;
-
- case ACPI_TYPE_BUFFER:
-
- acpi_os_printf("[Buffer] Length %.2X = ",
- obj_desc->buffer.length);
- if (obj_desc->buffer.length) {
- acpi_ut_dump_buffer(ACPI_CAST_PTR
- (u8, obj_desc->buffer.pointer),
- obj_desc->buffer.length,
- DB_DWORD_DISPLAY, _COMPONENT);
- } else {
- acpi_os_printf("\n");
- }
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- acpi_os_printf("[Package] Contains %d Elements:\n",
- obj_desc->package.count);
-
- for (i = 0; i < obj_desc->package.count; i++) {
- acpi_ex_dump_package_obj(obj_desc->package.elements[i],
- level + 1, i);
- }
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- acpi_os_printf("[Object Reference] Type [%s] %2.2X",
- acpi_ut_get_reference_name(obj_desc),
- obj_desc->reference.class);
- acpi_ex_dump_reference_obj(obj_desc);
- break;
-
- default:
-
- acpi_os_printf("[Unknown Type] %X\n",
- ACPI_GET_OBJECT_TYPE(obj_desc));
- break;
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_dump_object_descriptor
- *
- * PARAMETERS: obj_desc - Descriptor to dump
- * Flags - Force display if TRUE
- *
- * DESCRIPTION: Dumps the members of the object descriptor given.
- *
- ******************************************************************************/
-
-void
-acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
-{
- ACPI_FUNCTION_TRACE(ex_dump_object_descriptor);
-
- if (!obj_desc) {
- return_VOID;
- }
-
- if (!flags) {
- if (!((ACPI_LV_OBJECTS & acpi_dbg_level)
- && (_COMPONENT & acpi_dbg_layer))) {
- return_VOID;
- }
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_NAMED) {
- acpi_ex_dump_namespace_node((struct acpi_namespace_node *)
- obj_desc, flags);
-
- acpi_os_printf("\nAttached Object (%p):\n",
- ((struct acpi_namespace_node *)obj_desc)->
- object);
-
- acpi_ex_dump_object_descriptor(((struct acpi_namespace_node *)
- obj_desc)->object, flags);
- return_VOID;
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
- acpi_os_printf
- ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n",
- obj_desc, acpi_ut_get_descriptor_name(obj_desc));
- return_VOID;
- }
-
- if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) {
- return_VOID;
- }
-
- /* Common Fields */
-
- acpi_ex_dump_object(obj_desc, acpi_ex_dump_common);
-
- /* Object-specific fields */
-
- acpi_ex_dump_object(obj_desc, acpi_ex_dump_info[obj_desc->common.type]);
- return_VOID;
-}
-
-#endif
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exfield - ACPI AML (p-code) execution - field manipulation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exfield")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_read_data_from_field
- *
- * PARAMETERS: walk_state - Current execution state
- * obj_desc - The named field
- * ret_buffer_desc - Where the return data object is stored
- *
- * RETURN: Status
- *
- * DESCRIPTION: Read from a named field. Returns either an Integer or a
- * Buffer, depending on the size of the field.
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
- union acpi_operand_object *obj_desc,
- union acpi_operand_object **ret_buffer_desc)
-{
- acpi_status status;
- union acpi_operand_object *buffer_desc;
- acpi_size length;
- void *buffer;
-
- ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc);
-
- /* Parameter validation */
-
- if (!obj_desc) {
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
- if (!ret_buffer_desc) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
- /*
- * If the buffer_field arguments have not been previously evaluated,
- * evaluate them now and save the results.
- */
- if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_buffer_field_arguments(obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- } else
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD)
- && (obj_desc->field.region_obj->region.space_id ==
- ACPI_ADR_SPACE_SMBUS)) {
- /*
- * This is an SMBus read. We must create a buffer to hold the data
- * and directly access the region handler.
- */
- buffer_desc =
- acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /*
- * Perform the read.
- * Note: Smbus protocol value is passed in upper 16-bits of Function
- */
- status = acpi_ex_access_region(obj_desc, 0,
- ACPI_CAST_PTR(acpi_integer,
- buffer_desc->
- buffer.pointer),
- ACPI_READ | (obj_desc->field.
- attribute << 16));
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
- goto exit;
- }
-
- /*
- * Allocate a buffer for the contents of the field.
- *
- * If the field is larger than the size of an acpi_integer, create
- * a BUFFER to hold it. Otherwise, use an INTEGER. This allows
- * the use of arithmetic operators on the returned value if the
- * field size is equal or smaller than an Integer.
- *
- * Note: Field.length is in bits.
- */
- length =
- (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
- if (length > acpi_gbl_integer_byte_width) {
-
- /* Field is too large for an Integer, create a Buffer instead */
-
- buffer_desc = acpi_ut_create_buffer_object(length);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- buffer = buffer_desc->buffer.pointer;
- } else {
- /* Field will fit within an Integer (normal case) */
-
- buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- length = acpi_gbl_integer_byte_width;
- buffer_desc->integer.value = 0;
- buffer = &buffer_desc->integer.value;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n",
- obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer,
- (u32) length));
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n",
- obj_desc->common_field.bit_length,
- obj_desc->common_field.start_field_bit_offset,
- obj_desc->common_field.base_byte_offset));
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /* Read from the field */
-
- status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length);
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
-
- exit:
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(buffer_desc);
- } else {
- *ret_buffer_desc = buffer_desc;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_write_data_to_field
- *
- * PARAMETERS: source_desc - Contains data to write
- * obj_desc - The named field
- * result_desc - Where the return value is returned, if any
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to a named field
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
- union acpi_operand_object *obj_desc,
- union acpi_operand_object **result_desc)
-{
- acpi_status status;
- u32 length;
- void *buffer;
- union acpi_operand_object *buffer_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc);
-
- /* Parameter validation */
-
- if (!source_desc || !obj_desc) {
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
- /*
- * If the buffer_field arguments have not been previously evaluated,
- * evaluate them now and save the results.
- */
- if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_buffer_field_arguments(obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- } else
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD)
- && (obj_desc->field.region_obj->region.space_id ==
- ACPI_ADR_SPACE_SMBUS)) {
- /*
- * This is an SMBus write. We will bypass the entire field mechanism
- * and handoff the buffer directly to the handler.
- *
- * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE).
- */
- if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) {
- ACPI_ERROR((AE_INFO,
- "SMBus write requires Buffer, found type %s",
- acpi_ut_get_object_type_name(source_desc)));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- if (source_desc->buffer.length < ACPI_SMBUS_BUFFER_SIZE) {
- ACPI_ERROR((AE_INFO,
- "SMBus write requires Buffer of length %X, found length %X",
- ACPI_SMBUS_BUFFER_SIZE,
- source_desc->buffer.length));
-
- return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
- }
-
- buffer_desc =
- acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- buffer = buffer_desc->buffer.pointer;
- ACPI_MEMCPY(buffer, source_desc->buffer.pointer,
- ACPI_SMBUS_BUFFER_SIZE);
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /*
- * Perform the write (returns status and perhaps data in the
- * same buffer)
- * Note: SMBus protocol type is passed in upper 16-bits of Function.
- */
- status = acpi_ex_access_region(obj_desc, 0,
- (acpi_integer *) buffer,
- ACPI_WRITE | (obj_desc->field.
- attribute << 16));
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
-
- *result_desc = buffer_desc;
- return_ACPI_STATUS(status);
- }
-
- /* Get a pointer to the data to be written */
-
- switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
- case ACPI_TYPE_INTEGER:
- buffer = &source_desc->integer.value;
- length = sizeof(source_desc->integer.value);
- break;
-
- case ACPI_TYPE_BUFFER:
- buffer = source_desc->buffer.pointer;
- length = source_desc->buffer.length;
- break;
-
- case ACPI_TYPE_STRING:
- buffer = source_desc->string.pointer;
- length = source_desc->string.length;
- break;
-
- default:
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n",
- source_desc,
- acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
- (source_desc)),
- ACPI_GET_OBJECT_TYPE(source_desc), buffer, length));
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n",
- obj_desc,
- acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)),
- ACPI_GET_OBJECT_TYPE(obj_desc),
- obj_desc->common_field.bit_length,
- obj_desc->common_field.start_field_bit_offset,
- obj_desc->common_field.base_byte_offset));
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /* Write to the field */
-
- status = acpi_ex_insert_into_field(obj_desc, buffer, length);
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exfldio - Aml Field I/O
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acevents.h>
-#include <acpi/acdispat.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exfldio")
-
-/* Local prototypes */
-static acpi_status
-acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset,
- acpi_integer * value, u32 read_write);
-
-static u8
-acpi_ex_register_overflow(union acpi_operand_object *obj_desc,
- acpi_integer value);
-
-static acpi_status
-acpi_ex_setup_region(union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_setup_region
- *
- * PARAMETERS: obj_desc - Field to be read or written
- * field_datum_byte_offset - Byte offset of this datum within the
- * parent field
- *
- * RETURN: Status
- *
- * DESCRIPTION: Common processing for acpi_ex_extract_from_field and
- * acpi_ex_insert_into_field. Initialize the Region if necessary and
- * validate the request.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ex_setup_region(union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *rgn_desc;
-
- ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset);
-
- rgn_desc = obj_desc->common_field.region_obj;
-
- /* We must have a valid region */
-
- if (ACPI_GET_OBJECT_TYPE(rgn_desc) != ACPI_TYPE_REGION) {
- ACPI_ERROR((AE_INFO, "Needed Region, found type %X (%s)",
- ACPI_GET_OBJECT_TYPE(rgn_desc),
- acpi_ut_get_object_type_name(rgn_desc)));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /*
- * If the Region Address and Length have not been previously evaluated,
- * evaluate them now and save the results.
- */
- if (!(rgn_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_region_arguments(rgn_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Exit if Address/Length have been disallowed by the host OS */
-
- if (rgn_desc->common.flags & AOPOBJ_INVALID) {
- return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
- }
-
- /*
- * Exit now for SMBus address space, it has a non-linear address space
- * and the request cannot be directly validated
- */
- if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) {
-
- /* SMBus has a non-linear address space */
-
- return_ACPI_STATUS(AE_OK);
- }
-#ifdef ACPI_UNDER_DEVELOPMENT
- /*
- * If the Field access is any_acc, we can now compute the optimal
- * access (because we know know the length of the parent region)
- */
- if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-#endif
-
- /*
- * Validate the request. The entire request from the byte offset for a
- * length of one field datum (access width) must fit within the region.
- * (Region length is specified in bytes)
- */
- if (rgn_desc->region.length <
- (obj_desc->common_field.base_byte_offset +
- field_datum_byte_offset +
- obj_desc->common_field.access_byte_width)) {
- if (acpi_gbl_enable_interpreter_slack) {
- /*
- * Slack mode only: We will go ahead and allow access to this
- * field if it is within the region length rounded up to the next
- * access width boundary. acpi_size cast for 64-bit compile.
- */
- if (ACPI_ROUND_UP(rgn_desc->region.length,
- obj_desc->common_field.
- access_byte_width) >=
- ((acpi_size) obj_desc->common_field.
- base_byte_offset +
- obj_desc->common_field.access_byte_width +
- field_datum_byte_offset)) {
- return_ACPI_STATUS(AE_OK);
- }
- }
-
- if (rgn_desc->region.length <
- obj_desc->common_field.access_byte_width) {
- /*
- * This is the case where the access_type (acc_word, etc.) is wider
- * than the region itself. For example, a region of length one
- * byte, and a field with Dword access specified.
- */
- ACPI_ERROR((AE_INFO,
- "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)",
- acpi_ut_get_node_name(obj_desc->
- common_field.node),
- obj_desc->common_field.access_byte_width,
- acpi_ut_get_node_name(rgn_desc->region.
- node),
- rgn_desc->region.length));
- }
-
- /*
- * Offset rounded up to next multiple of field width
- * exceeds region length, indicate an error
- */
- ACPI_ERROR((AE_INFO,
- "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)",
- acpi_ut_get_node_name(obj_desc->common_field.node),
- obj_desc->common_field.base_byte_offset,
- field_datum_byte_offset,
- obj_desc->common_field.access_byte_width,
- acpi_ut_get_node_name(rgn_desc->region.node),
- rgn_desc->region.length));
-
- return_ACPI_STATUS(AE_AML_REGION_LIMIT);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_access_region
- *
- * PARAMETERS: obj_desc - Field to be read
- * field_datum_byte_offset - Byte offset of this datum within the
- * parent field
- * Value - Where to store value (must at least
- * the size of acpi_integer)
- * Function - Read or Write flag plus other region-
- * dependent flags
- *
- * RETURN: Status
- *
- * DESCRIPTION: Read or Write a single field datum to an Operation Region.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_access_region(union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset,
- acpi_integer * value, u32 function)
-{
- acpi_status status;
- union acpi_operand_object *rgn_desc;
- acpi_physical_address address;
-
- ACPI_FUNCTION_TRACE(ex_access_region);
-
- /*
- * Ensure that the region operands are fully evaluated and verify
- * the validity of the request
- */
- status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * The physical address of this field datum is:
- *
- * 1) The base of the region, plus
- * 2) The base offset of the field, plus
- * 3) The current offset into the field
- */
- rgn_desc = obj_desc->common_field.region_obj;
- address = rgn_desc->region.address +
- obj_desc->common_field.base_byte_offset + field_datum_byte_offset;
-
- if ((function & ACPI_IO_MASK) == ACPI_READ) {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]"));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]"));
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD,
- " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %p\n",
- acpi_ut_get_region_name(rgn_desc->region.
- space_id),
- rgn_desc->region.space_id,
- obj_desc->common_field.access_byte_width,
- obj_desc->common_field.base_byte_offset,
- field_datum_byte_offset, ACPI_CAST_PTR(void,
- address)));
-
- /* Invoke the appropriate address_space/op_region handler */
-
- status = acpi_ev_address_space_dispatch(rgn_desc, function,
- address,
- ACPI_MUL_8(obj_desc->
- common_field.
- access_byte_width),
- value);
-
- if (ACPI_FAILURE(status)) {
- if (status == AE_NOT_IMPLEMENTED) {
- ACPI_ERROR((AE_INFO,
- "Region %s(%X) not implemented",
- acpi_ut_get_region_name(rgn_desc->region.
- space_id),
- rgn_desc->region.space_id));
- } else if (status == AE_NOT_EXIST) {
- ACPI_ERROR((AE_INFO,
- "Region %s(%X) has no handler",
- acpi_ut_get_region_name(rgn_desc->region.
- space_id),
- rgn_desc->region.space_id));
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_register_overflow
- *
- * PARAMETERS: obj_desc - Register(Field) to be written
- * Value - Value to be stored
- *
- * RETURN: TRUE if value overflows the field, FALSE otherwise
- *
- * DESCRIPTION: Check if a value is out of range of the field being written.
- * Used to check if the values written to Index and Bank registers
- * are out of range. Normally, the value is simply truncated
- * to fit the field, but this case is most likely a serious
- * coding error in the ASL.
- *
- ******************************************************************************/
-
-static u8
-acpi_ex_register_overflow(union acpi_operand_object *obj_desc,
- acpi_integer value)
-{
-
- if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) {
- /*
- * The field is large enough to hold the maximum integer, so we can
- * never overflow it.
- */
- return (FALSE);
- }
-
- if (value >= ((acpi_integer) 1 << obj_desc->common_field.bit_length)) {
- /*
- * The Value is larger than the maximum value that can fit into
- * the register.
- */
- return (TRUE);
- }
-
- /* The Value will fit into the field with no truncation */
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_field_datum_io
- *
- * PARAMETERS: obj_desc - Field to be read
- * field_datum_byte_offset - Byte offset of this datum within the
- * parent field
- * Value - Where to store value (must be 64 bits)
- * read_write - Read or Write flag
- *
- * RETURN: Status
- *
- * DESCRIPTION: Read or Write a single datum of a field. The field_type is
- * demultiplexed here to handle the different types of fields
- * (buffer_field, region_field, index_field, bank_field)
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset,
- acpi_integer * value, u32 read_write)
-{
- acpi_status status;
- acpi_integer local_value;
-
- ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset);
-
- if (read_write == ACPI_READ) {
- if (!value) {
- local_value = 0;
-
- /* To support reads without saving return value */
- value = &local_value;
- }
-
- /* Clear the entire return buffer first, [Very Important!] */
-
- *value = 0;
- }
-
- /*
- * The four types of fields are:
- *
- * buffer_field - Read/write from/to a Buffer
- * region_field - Read/write from/to a Operation Region.
- * bank_field - Write to a Bank Register, then read/write from/to an
- * operation_region
- * index_field - Write to an Index Register, then read/write from/to a
- * Data Register
- */
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_BUFFER_FIELD:
- /*
- * If the buffer_field arguments have not been previously evaluated,
- * evaluate them now and save the results.
- */
- if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_buffer_field_arguments(obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- if (read_write == ACPI_READ) {
- /*
- * Copy the data from the source buffer.
- * Length is the field width in bytes.
- */
- ACPI_MEMCPY(value,
- (obj_desc->buffer_field.buffer_obj)->buffer.
- pointer +
- obj_desc->buffer_field.base_byte_offset +
- field_datum_byte_offset,
- obj_desc->common_field.access_byte_width);
- } else {
- /*
- * Copy the data to the target buffer.
- * Length is the field width in bytes.
- */
- ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer.
- pointer +
- obj_desc->buffer_field.base_byte_offset +
- field_datum_byte_offset, value,
- obj_desc->common_field.access_byte_width);
- }
-
- status = AE_OK;
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- /*
- * Ensure that the bank_value is not beyond the capacity of
- * the register
- */
- if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj,
- (acpi_integer) obj_desc->
- bank_field.value)) {
- return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
- }
-
- /*
- * For bank_fields, we must write the bank_value to the bank_register
- * (itself a region_field) before we can access the data.
- */
- status =
- acpi_ex_insert_into_field(obj_desc->bank_field.bank_obj,
- &obj_desc->bank_field.value,
- sizeof(obj_desc->bank_field.
- value));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Now that the Bank has been selected, fall through to the
- * region_field case and write the datum to the Operation Region
- */
-
- /*lint -fallthrough */
-
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- /*
- * For simple region_fields, we just directly access the owning
- * Operation Region.
- */
- status =
- acpi_ex_access_region(obj_desc, field_datum_byte_offset,
- value, read_write);
- break;
-
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- /*
- * Ensure that the index_value is not beyond the capacity of
- * the register
- */
- if (acpi_ex_register_overflow(obj_desc->index_field.index_obj,
- (acpi_integer) obj_desc->
- index_field.value)) {
- return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
- }
-
- /* Write the index value to the index_register (itself a region_field) */
-
- field_datum_byte_offset += obj_desc->index_field.value;
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Write to Index Register: Value %8.8X\n",
- field_datum_byte_offset));
-
- status =
- acpi_ex_insert_into_field(obj_desc->index_field.index_obj,
- &field_datum_byte_offset,
- sizeof(field_datum_byte_offset));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (read_write == ACPI_READ) {
-
- /* Read the datum from the data_register */
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Read from Data Register\n"));
-
- status =
- acpi_ex_extract_from_field(obj_desc->index_field.
- data_obj, value,
- sizeof(acpi_integer));
- } else {
- /* Write the datum to the data_register */
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Write to Data Register: Value %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(*value)));
-
- status =
- acpi_ex_insert_into_field(obj_desc->index_field.
- data_obj, value,
- sizeof(acpi_integer));
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Wrong object type in field I/O %X",
- ACPI_GET_OBJECT_TYPE(obj_desc)));
- status = AE_AML_INTERNAL;
- break;
- }
-
- if (ACPI_SUCCESS(status)) {
- if (read_write == ACPI_READ) {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Value Read %8.8X%8.8X, Width %d\n",
- ACPI_FORMAT_UINT64(*value),
- obj_desc->common_field.
- access_byte_width));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Value Written %8.8X%8.8X, Width %d\n",
- ACPI_FORMAT_UINT64(*value),
- obj_desc->common_field.
- access_byte_width));
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_write_with_update_rule
- *
- * PARAMETERS: obj_desc - Field to be written
- * Mask - bitmask within field datum
- * field_value - Value to write
- * field_datum_byte_offset - Offset of datum within field
- *
- * RETURN: Status
- *
- * DESCRIPTION: Apply the field update rule to a field write
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
- acpi_integer mask,
- acpi_integer field_value,
- u32 field_datum_byte_offset)
-{
- acpi_status status = AE_OK;
- acpi_integer merged_value;
- acpi_integer current_value;
-
- ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask);
-
- /* Start with the new bits */
-
- merged_value = field_value;
-
- /* If the mask is all ones, we don't need to worry about the update rule */
-
- if (mask != ACPI_INTEGER_MAX) {
-
- /* Decode the update rule */
-
- switch (obj_desc->common_field.
- field_flags & AML_FIELD_UPDATE_RULE_MASK) {
- case AML_FIELD_UPDATE_PRESERVE:
- /*
- * Check if update rule needs to be applied (not if mask is all
- * ones) The left shift drops the bits we want to ignore.
- */
- if ((~mask << (ACPI_MUL_8(sizeof(mask)) -
- ACPI_MUL_8(obj_desc->common_field.
- access_byte_width))) != 0) {
- /*
- * Read the current contents of the byte/word/dword containing
- * the field, and merge with the new field value.
- */
- status =
- acpi_ex_field_datum_io(obj_desc,
- field_datum_byte_offset,
- ¤t_value,
- ACPI_READ);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- merged_value |= (current_value & ~mask);
- }
- break;
-
- case AML_FIELD_UPDATE_WRITE_AS_ONES:
-
- /* Set positions outside the field to all ones */
-
- merged_value |= ~mask;
- break;
-
- case AML_FIELD_UPDATE_WRITE_AS_ZEROS:
-
- /* Set positions outside the field to all zeros */
-
- merged_value &= mask;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown UpdateRule value: %X",
- (obj_desc->common_field.
- field_flags &
- AML_FIELD_UPDATE_RULE_MASK)));
- return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(mask),
- field_datum_byte_offset,
- obj_desc->common_field.access_byte_width,
- ACPI_FORMAT_UINT64(field_value),
- ACPI_FORMAT_UINT64(merged_value)));
-
- /* Write the merged value */
-
- status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset,
- &merged_value, ACPI_WRITE);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_extract_from_field
- *
- * PARAMETERS: obj_desc - Field to be read
- * Buffer - Where to store the field data
- * buffer_length - Length of Buffer
- *
- * RETURN: Status
- *
- * DESCRIPTION: Retrieve the current value of the given field
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
- void *buffer, u32 buffer_length)
-{
- acpi_status status;
- acpi_integer raw_datum;
- acpi_integer merged_datum;
- u32 field_offset = 0;
- u32 buffer_offset = 0;
- u32 buffer_tail_bits;
- u32 datum_count;
- u32 field_datum_count;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ex_extract_from_field);
-
- /* Validate target buffer and clear it */
-
- if (buffer_length <
- ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) {
- ACPI_ERROR((AE_INFO,
- "Field size %X (bits) is too large for buffer (%X)",
- obj_desc->common_field.bit_length, buffer_length));
-
- return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
- }
- ACPI_MEMSET(buffer, 0, buffer_length);
-
- /* Compute the number of datums (access width data items) */
-
- datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
- obj_desc->common_field.access_bit_width);
- field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
- obj_desc->common_field.
- start_field_bit_offset,
- obj_desc->common_field.
- access_bit_width);
-
- /* Priming read from the field */
-
- status =
- acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum,
- ACPI_READ);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- merged_datum =
- raw_datum >> obj_desc->common_field.start_field_bit_offset;
-
- /* Read the rest of the field */
-
- for (i = 1; i < field_datum_count; i++) {
-
- /* Get next input datum from the field */
-
- field_offset += obj_desc->common_field.access_byte_width;
- status = acpi_ex_field_datum_io(obj_desc, field_offset,
- &raw_datum, ACPI_READ);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Merge with previous datum if necessary.
- *
- * Note: Before the shift, check if the shift value will be larger than
- * the integer size. If so, there is no need to perform the operation.
- * This avoids the differences in behavior between different compilers
- * concerning shift values larger than the target data width.
- */
- if ((obj_desc->common_field.access_bit_width -
- obj_desc->common_field.start_field_bit_offset) <
- ACPI_INTEGER_BIT_SIZE) {
- merged_datum |=
- raw_datum << (obj_desc->common_field.
- access_bit_width -
- obj_desc->common_field.
- start_field_bit_offset);
- }
-
- if (i == datum_count) {
- break;
- }
-
- /* Write merged datum to target buffer */
-
- ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
-
- buffer_offset += obj_desc->common_field.access_byte_width;
- merged_datum =
- raw_datum >> obj_desc->common_field.start_field_bit_offset;
- }
-
- /* Mask off any extra bits in the last datum */
-
- buffer_tail_bits = obj_desc->common_field.bit_length %
- obj_desc->common_field.access_bit_width;
- if (buffer_tail_bits) {
- merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
- }
-
- /* Write the last datum to the buffer */
-
- ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_insert_into_field
- *
- * PARAMETERS: obj_desc - Field to be written
- * Buffer - Data to be written
- * buffer_length - Length of Buffer
- *
- * RETURN: Status
- *
- * DESCRIPTION: Store the Buffer contents into the given field
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
- void *buffer, u32 buffer_length)
-{
- acpi_status status;
- acpi_integer mask;
- acpi_integer width_mask;
- acpi_integer merged_datum;
- acpi_integer raw_datum = 0;
- u32 field_offset = 0;
- u32 buffer_offset = 0;
- u32 buffer_tail_bits;
- u32 datum_count;
- u32 field_datum_count;
- u32 i;
- u32 required_length;
- void *new_buffer;
-
- ACPI_FUNCTION_TRACE(ex_insert_into_field);
-
- /* Validate input buffer */
-
- new_buffer = NULL;
- required_length =
- ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length);
- /*
- * We must have a buffer that is at least as long as the field
- * we are writing to. This is because individual fields are
- * indivisible and partial writes are not supported -- as per
- * the ACPI specification.
- */
- if (buffer_length < required_length) {
-
- /* We need to create a new buffer */
-
- new_buffer = ACPI_ALLOCATE_ZEROED(required_length);
- if (!new_buffer) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /*
- * Copy the original data to the new buffer, starting
- * at Byte zero. All unused (upper) bytes of the
- * buffer will be 0.
- */
- ACPI_MEMCPY((char *)new_buffer, (char *)buffer, buffer_length);
- buffer = new_buffer;
- buffer_length = required_length;
- }
-
- /*
- * Create the bitmasks used for bit insertion.
- * Note: This if/else is used to bypass compiler differences with the
- * shift operator
- */
- if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) {
- width_mask = ACPI_INTEGER_MAX;
- } else {
- width_mask =
- ACPI_MASK_BITS_ABOVE(obj_desc->common_field.
- access_bit_width);
- }
-
- mask = width_mask &
- ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset);
-
- /* Compute the number of datums (access width data items) */
-
- datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
- obj_desc->common_field.access_bit_width);
-
- field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
- obj_desc->common_field.
- start_field_bit_offset,
- obj_desc->common_field.
- access_bit_width);
-
- /* Get initial Datum from the input buffer */
-
- ACPI_MEMCPY(&raw_datum, buffer,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
-
- merged_datum =
- raw_datum << obj_desc->common_field.start_field_bit_offset;
-
- /* Write the entire field */
-
- for (i = 1; i < field_datum_count; i++) {
-
- /* Write merged datum to the target field */
-
- merged_datum &= mask;
- status = acpi_ex_write_with_update_rule(obj_desc, mask,
- merged_datum,
- field_offset);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- field_offset += obj_desc->common_field.access_byte_width;
-
- /*
- * Start new output datum by merging with previous input datum
- * if necessary.
- *
- * Note: Before the shift, check if the shift value will be larger than
- * the integer size. If so, there is no need to perform the operation.
- * This avoids the differences in behavior between different compilers
- * concerning shift values larger than the target data width.
- */
- if ((obj_desc->common_field.access_bit_width -
- obj_desc->common_field.start_field_bit_offset) <
- ACPI_INTEGER_BIT_SIZE) {
- merged_datum =
- raw_datum >> (obj_desc->common_field.
- access_bit_width -
- obj_desc->common_field.
- start_field_bit_offset);
- } else {
- merged_datum = 0;
- }
-
- mask = width_mask;
-
- if (i == datum_count) {
- break;
- }
-
- /* Get the next input datum from the buffer */
-
- buffer_offset += obj_desc->common_field.access_byte_width;
- ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
- merged_datum |=
- raw_datum << obj_desc->common_field.start_field_bit_offset;
- }
-
- /* Mask off any extra bits in the last datum */
-
- buffer_tail_bits = (obj_desc->common_field.bit_length +
- obj_desc->common_field.start_field_bit_offset) %
- obj_desc->common_field.access_bit_width;
- if (buffer_tail_bits) {
- mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
- }
-
- /* Write the last datum to the field */
-
- merged_datum &= mask;
- status = acpi_ex_write_with_update_rule(obj_desc,
- mask, merged_datum,
- field_offset);
-
- exit:
- /* Free temporary buffer if we used one */
-
- if (new_buffer) {
- ACPI_FREE(new_buffer);
- }
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exmisc - ACPI AML (p-code) execution - specific opcodes
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/amlresrc.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exmisc")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_get_object_reference
- *
- * PARAMETERS: obj_desc - Create a reference to this object
- * return_desc - Where to store the reference
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Obtain and return a "reference" to the target object
- * Common code for the ref_of_op and the cond_ref_of_op.
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_get_object_reference(union acpi_operand_object *obj_desc,
- union acpi_operand_object **return_desc,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *reference_obj;
- union acpi_operand_object *referenced_obj;
-
- ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc);
-
- *return_desc = NULL;
-
- switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
- case ACPI_DESC_TYPE_OPERAND:
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_LOCAL_REFERENCE) {
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /*
- * Must be a reference to a Local or Arg
- */
- switch (obj_desc->reference.class) {
- case ACPI_REFCLASS_LOCAL:
- case ACPI_REFCLASS_ARG:
- case ACPI_REFCLASS_DEBUG:
-
- /* The referenced object is the pseudo-node for the local/arg */
-
- referenced_obj = obj_desc->reference.object;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
- obj_desc->reference.class));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
- break;
-
- case ACPI_DESC_TYPE_NAMED:
-
- /*
- * A named reference that has already been resolved to a Node
- */
- referenced_obj = obj_desc;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Invalid descriptor type %X",
- ACPI_GET_DESCRIPTOR_TYPE(obj_desc)));
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /* Create a new reference object */
-
- reference_obj =
- acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
- if (!reference_obj) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- reference_obj->reference.class = ACPI_REFCLASS_REFOF;
- reference_obj->reference.object = referenced_obj;
- *return_desc = reference_obj;
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Object %p Type [%s], returning Reference %p\n",
- obj_desc, acpi_ut_get_object_type_name(obj_desc),
- *return_desc));
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_concat_template
- *
- * PARAMETERS: Operand0 - First source object
- * Operand1 - Second source object
- * actual_return_desc - Where to place the return object
- * walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Concatenate two resource templates
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_concat_template(union acpi_operand_object *operand0,
- union acpi_operand_object *operand1,
- union acpi_operand_object **actual_return_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_operand_object *return_desc;
- u8 *new_buf;
- u8 *end_tag;
- acpi_size length0;
- acpi_size length1;
- acpi_size new_length;
-
- ACPI_FUNCTION_TRACE(ex_concat_template);
-
- /*
- * Find the end_tag descriptor in each resource template.
- * Note1: returned pointers point TO the end_tag, not past it.
- * Note2: zero-length buffers are allowed; treated like one end_tag
- */
-
- /* Get the length of the first resource template */
-
- status = acpi_ut_get_resource_end_tag(operand0, &end_tag);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer);
-
- /* Get the length of the second resource template */
-
- status = acpi_ut_get_resource_end_tag(operand1, &end_tag);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer);
-
- /* Combine both lengths, minimum size will be 2 for end_tag */
-
- new_length = length0 + length1 + sizeof(struct aml_resource_end_tag);
-
- /* Create a new buffer object for the result (with one end_tag) */
-
- return_desc = acpi_ut_create_buffer_object(new_length);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /*
- * Copy the templates to the new buffer, 0 first, then 1 follows. One
- * end_tag descriptor is copied from Operand1.
- */
- new_buf = return_desc->buffer.pointer;
- ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0);
- ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1);
-
- /* Insert end_tag and set the checksum to zero, means "ignore checksum" */
-
- new_buf[new_length - 1] = 0;
- new_buf[new_length - 2] = ACPI_RESOURCE_NAME_END_TAG | 1;
-
- /* Return the completed resource template */
-
- *actual_return_desc = return_desc;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_do_concatenate
- *
- * PARAMETERS: Operand0 - First source object
- * Operand1 - Second source object
- * actual_return_desc - Where to place the return object
- * walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Concatenate two objects OF THE SAME TYPE.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_do_concatenate(union acpi_operand_object *operand0,
- union acpi_operand_object *operand1,
- union acpi_operand_object **actual_return_desc,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *local_operand1 = operand1;
- union acpi_operand_object *return_desc;
- char *new_buf;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_do_concatenate);
-
- /*
- * Convert the second operand if necessary. The first operand
- * determines the type of the second operand, (See the Data Types
- * section of the ACPI specification.) Both object types are
- * guaranteed to be either Integer/String/Buffer by the operand
- * resolution mechanism.
- */
- switch (ACPI_GET_OBJECT_TYPE(operand0)) {
- case ACPI_TYPE_INTEGER:
- status =
- acpi_ex_convert_to_integer(operand1, &local_operand1, 16);
- break;
-
- case ACPI_TYPE_STRING:
- status = acpi_ex_convert_to_string(operand1, &local_operand1,
- ACPI_IMPLICIT_CONVERT_HEX);
- break;
-
- case ACPI_TYPE_BUFFER:
- status = acpi_ex_convert_to_buffer(operand1, &local_operand1);
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Invalid object type: %X",
- ACPI_GET_OBJECT_TYPE(operand0)));
- status = AE_AML_INTERNAL;
- }
-
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * Both operands are now known to be the same object type
- * (Both are Integer, String, or Buffer), and we can now perform the
- * concatenation.
- */
-
- /*
- * There are three cases to handle:
- *
- * 1) Two Integers concatenated to produce a new Buffer
- * 2) Two Strings concatenated to produce a new String
- * 3) Two Buffers concatenated to produce a new Buffer
- */
- switch (ACPI_GET_OBJECT_TYPE(operand0)) {
- case ACPI_TYPE_INTEGER:
-
- /* Result of two Integers is a Buffer */
- /* Need enough buffer space for two integers */
-
- return_desc = acpi_ut_create_buffer_object((acpi_size)
- ACPI_MUL_2
- (acpi_gbl_integer_byte_width));
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- new_buf = (char *)return_desc->buffer.pointer;
-
- /* Copy the first integer, LSB first */
-
- ACPI_MEMCPY(new_buf, &operand0->integer.value,
- acpi_gbl_integer_byte_width);
-
- /* Copy the second integer (LSB first) after the first */
-
- ACPI_MEMCPY(new_buf + acpi_gbl_integer_byte_width,
- &local_operand1->integer.value,
- acpi_gbl_integer_byte_width);
- break;
-
- case ACPI_TYPE_STRING:
-
- /* Result of two Strings is a String */
-
- return_desc = acpi_ut_create_string_object(((acpi_size)
- operand0->string.
- length +
- local_operand1->
- string.length));
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- new_buf = return_desc->string.pointer;
-
- /* Concatenate the strings */
-
- ACPI_STRCPY(new_buf, operand0->string.pointer);
- ACPI_STRCPY(new_buf + operand0->string.length,
- local_operand1->string.pointer);
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Result of two Buffers is a Buffer */
-
- return_desc = acpi_ut_create_buffer_object(((acpi_size)
- operand0->buffer.
- length +
- local_operand1->
- buffer.length));
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- new_buf = (char *)return_desc->buffer.pointer;
-
- /* Concatenate the buffers */
-
- ACPI_MEMCPY(new_buf, operand0->buffer.pointer,
- operand0->buffer.length);
- ACPI_MEMCPY(new_buf + operand0->buffer.length,
- local_operand1->buffer.pointer,
- local_operand1->buffer.length);
- break;
-
- default:
-
- /* Invalid object type, should not happen here */
-
- ACPI_ERROR((AE_INFO, "Invalid object type: %X",
- ACPI_GET_OBJECT_TYPE(operand0)));
- status = AE_AML_INTERNAL;
- goto cleanup;
- }
-
- *actual_return_desc = return_desc;
-
- cleanup:
- if (local_operand1 != operand1) {
- acpi_ut_remove_reference(local_operand1);
- }
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_do_math_op
- *
- * PARAMETERS: Opcode - AML opcode
- * Integer0 - Integer operand #0
- * Integer1 - Integer operand #1
- *
- * RETURN: Integer result of the operation
- *
- * DESCRIPTION: Execute a math AML opcode. The purpose of having all of the
- * math functions here is to prevent a lot of pointer dereferencing
- * to obtain the operands.
- *
- ******************************************************************************/
-
-acpi_integer
-acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1)
-{
-
- ACPI_FUNCTION_ENTRY();
-
- switch (opcode) {
- case AML_ADD_OP: /* Add (Integer0, Integer1, Result) */
-
- return (integer0 + integer1);
-
- case AML_BIT_AND_OP: /* And (Integer0, Integer1, Result) */
-
- return (integer0 & integer1);
-
- case AML_BIT_NAND_OP: /* NAnd (Integer0, Integer1, Result) */
-
- return (~(integer0 & integer1));
-
- case AML_BIT_OR_OP: /* Or (Integer0, Integer1, Result) */
-
- return (integer0 | integer1);
-
- case AML_BIT_NOR_OP: /* NOr (Integer0, Integer1, Result) */
-
- return (~(integer0 | integer1));
-
- case AML_BIT_XOR_OP: /* XOr (Integer0, Integer1, Result) */
-
- return (integer0 ^ integer1);
-
- case AML_MULTIPLY_OP: /* Multiply (Integer0, Integer1, Result) */
-
- return (integer0 * integer1);
-
- case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */
-
- /*
- * We need to check if the shiftcount is larger than the integer bit
- * width since the behavior of this is not well-defined in the C language.
- */
- if (integer1 >= acpi_gbl_integer_bit_width) {
- return (0);
- }
- return (integer0 << integer1);
-
- case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */
-
- /*
- * We need to check if the shiftcount is larger than the integer bit
- * width since the behavior of this is not well-defined in the C language.
- */
- if (integer1 >= acpi_gbl_integer_bit_width) {
- return (0);
- }
- return (integer0 >> integer1);
-
- case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */
-
- return (integer0 - integer1);
-
- default:
-
- return (0);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_do_logical_numeric_op
- *
- * PARAMETERS: Opcode - AML opcode
- * Integer0 - Integer operand #0
- * Integer1 - Integer operand #1
- * logical_result - TRUE/FALSE result of the operation
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute a logical "Numeric" AML opcode. For these Numeric
- * operators (LAnd and LOr), both operands must be integers.
- *
- * Note: cleanest machine code seems to be produced by the code
- * below, rather than using statements of the form:
- * Result = (Integer0 && Integer1);
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_do_logical_numeric_op(u16 opcode,
- acpi_integer integer0,
- acpi_integer integer1, u8 * logical_result)
-{
- acpi_status status = AE_OK;
- u8 local_result = FALSE;
-
- ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op);
-
- switch (opcode) {
- case AML_LAND_OP: /* LAnd (Integer0, Integer1) */
-
- if (integer0 && integer1) {
- local_result = TRUE;
- }
- break;
-
- case AML_LOR_OP: /* LOr (Integer0, Integer1) */
-
- if (integer0 || integer1) {
- local_result = TRUE;
- }
- break;
-
- default:
- status = AE_AML_INTERNAL;
- break;
- }
-
- /* Return the logical result and status */
-
- *logical_result = local_result;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_do_logical_op
- *
- * PARAMETERS: Opcode - AML opcode
- * Operand0 - operand #0
- * Operand1 - operand #1
- * logical_result - TRUE/FALSE result of the operation
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute a logical AML opcode. The purpose of having all of the
- * functions here is to prevent a lot of pointer dereferencing
- * to obtain the operands and to simplify the generation of the
- * logical value. For the Numeric operators (LAnd and LOr), both
- * operands must be integers. For the other logical operators,
- * operands can be any combination of Integer/String/Buffer. The
- * first operand determines the type to which the second operand
- * will be converted.
- *
- * Note: cleanest machine code seems to be produced by the code
- * below, rather than using statements of the form:
- * Result = (Operand0 == Operand1);
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_do_logical_op(u16 opcode,
- union acpi_operand_object *operand0,
- union acpi_operand_object *operand1, u8 * logical_result)
-{
- union acpi_operand_object *local_operand1 = operand1;
- acpi_integer integer0;
- acpi_integer integer1;
- u32 length0;
- u32 length1;
- acpi_status status = AE_OK;
- u8 local_result = FALSE;
- int compare;
-
- ACPI_FUNCTION_TRACE(ex_do_logical_op);
-
- /*
- * Convert the second operand if necessary. The first operand
- * determines the type of the second operand, (See the Data Types
- * section of the ACPI 3.0+ specification.) Both object types are
- * guaranteed to be either Integer/String/Buffer by the operand
- * resolution mechanism.
- */
- switch (ACPI_GET_OBJECT_TYPE(operand0)) {
- case ACPI_TYPE_INTEGER:
- status =
- acpi_ex_convert_to_integer(operand1, &local_operand1, 16);
- break;
-
- case ACPI_TYPE_STRING:
- status = acpi_ex_convert_to_string(operand1, &local_operand1,
- ACPI_IMPLICIT_CONVERT_HEX);
- break;
-
- case ACPI_TYPE_BUFFER:
- status = acpi_ex_convert_to_buffer(operand1, &local_operand1);
- break;
-
- default:
- status = AE_AML_INTERNAL;
- break;
- }
-
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * Two cases: 1) Both Integers, 2) Both Strings or Buffers
- */
- if (ACPI_GET_OBJECT_TYPE(operand0) == ACPI_TYPE_INTEGER) {
- /*
- * 1) Both operands are of type integer
- * Note: local_operand1 may have changed above
- */
- integer0 = operand0->integer.value;
- integer1 = local_operand1->integer.value;
-
- switch (opcode) {
- case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */
-
- if (integer0 == integer1) {
- local_result = TRUE;
- }
- break;
-
- case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */
-
- if (integer0 > integer1) {
- local_result = TRUE;
- }
- break;
-
- case AML_LLESS_OP: /* LLess (Operand0, Operand1) */
-
- if (integer0 < integer1) {
- local_result = TRUE;
- }
- break;
-
- default:
- status = AE_AML_INTERNAL;
- break;
- }
- } else {
- /*
- * 2) Both operands are Strings or both are Buffers
- * Note: Code below takes advantage of common Buffer/String
- * object fields. local_operand1 may have changed above. Use
- * memcmp to handle nulls in buffers.
- */
- length0 = operand0->buffer.length;
- length1 = local_operand1->buffer.length;
-
- /* Lexicographic compare: compare the data bytes */
-
- compare = ACPI_MEMCMP(operand0->buffer.pointer,
- local_operand1->buffer.pointer,
- (length0 > length1) ? length1 : length0);
-
- switch (opcode) {
- case AML_LEQUAL_OP: /* LEqual (Operand0, Operand1) */
-
- /* Length and all bytes must be equal */
-
- if ((length0 == length1) && (compare == 0)) {
-
- /* Length and all bytes match ==> TRUE */
-
- local_result = TRUE;
- }
- break;
-
- case AML_LGREATER_OP: /* LGreater (Operand0, Operand1) */
-
- if (compare > 0) {
- local_result = TRUE;
- goto cleanup; /* TRUE */
- }
- if (compare < 0) {
- goto cleanup; /* FALSE */
- }
-
- /* Bytes match (to shortest length), compare lengths */
-
- if (length0 > length1) {
- local_result = TRUE;
- }
- break;
-
- case AML_LLESS_OP: /* LLess (Operand0, Operand1) */
-
- if (compare > 0) {
- goto cleanup; /* FALSE */
- }
- if (compare < 0) {
- local_result = TRUE;
- goto cleanup; /* TRUE */
- }
-
- /* Bytes match (to shortest length), compare lengths */
-
- if (length0 < length1) {
- local_result = TRUE;
- }
- break;
-
- default:
- status = AE_AML_INTERNAL;
- break;
- }
- }
-
- cleanup:
-
- /* New object was created if implicit conversion performed - delete */
-
- if (local_operand1 != operand1) {
- acpi_ut_remove_reference(local_operand1);
- }
-
- /* Return the logical result and status */
-
- *logical_result = local_result;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exmutex - ASL Mutex Acquire/Release functions
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exmutex")
-
-/* Local prototypes */
-static void
-acpi_ex_link_mutex(union acpi_operand_object *obj_desc,
- struct acpi_thread_state *thread);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_unlink_mutex
- *
- * PARAMETERS: obj_desc - The mutex to be unlinked
- *
- * RETURN: None
- *
- * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list
- *
- ******************************************************************************/
-
-void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc)
-{
- struct acpi_thread_state *thread = obj_desc->mutex.owner_thread;
-
- if (!thread) {
- return;
- }
-
- /* Doubly linked list */
-
- if (obj_desc->mutex.next) {
- (obj_desc->mutex.next)->mutex.prev = obj_desc->mutex.prev;
- }
-
- if (obj_desc->mutex.prev) {
- (obj_desc->mutex.prev)->mutex.next = obj_desc->mutex.next;
- } else {
- thread->acquired_mutex_list = obj_desc->mutex.next;
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_link_mutex
- *
- * PARAMETERS: obj_desc - The mutex to be linked
- * Thread - Current executing thread object
- *
- * RETURN: None
- *
- * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk
- *
- ******************************************************************************/
-
-static void
-acpi_ex_link_mutex(union acpi_operand_object *obj_desc,
- struct acpi_thread_state *thread)
-{
- union acpi_operand_object *list_head;
-
- list_head = thread->acquired_mutex_list;
-
- /* This object will be the first object in the list */
-
- obj_desc->mutex.prev = NULL;
- obj_desc->mutex.next = list_head;
-
- /* Update old first object to point back to this object */
-
- if (list_head) {
- list_head->mutex.prev = obj_desc;
- }
-
- /* Update list head */
-
- thread->acquired_mutex_list = obj_desc;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_acquire_mutex_object
- *
- * PARAMETERS: time_desc - Timeout in milliseconds
- * obj_desc - Mutex object
- * Thread - Current thread state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Acquire an AML mutex, low-level interface. Provides a common
- * path that supports multiple acquires by the same thread.
- *
- * MUTEX: Interpreter must be locked
- *
- * NOTE: This interface is called from three places:
- * 1) From acpi_ex_acquire_mutex, via an AML Acquire() operator
- * 2) From acpi_ex_acquire_global_lock when an AML Field access requires the
- * global lock
- * 3) From the external interface, acpi_acquire_global_lock
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_acquire_mutex_object(u16 timeout,
- union acpi_operand_object *obj_desc,
- acpi_thread_id thread_id)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex_object, obj_desc);
-
- if (!obj_desc) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Support for multiple acquires by the owning thread */
-
- if (obj_desc->mutex.thread_id == thread_id) {
- /*
- * The mutex is already owned by this thread, just increment the
- * acquisition depth
- */
- obj_desc->mutex.acquisition_depth++;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Acquire the mutex, wait if necessary. Special case for Global Lock */
-
- if (obj_desc == acpi_gbl_global_lock_mutex) {
- status = acpi_ev_acquire_global_lock(timeout);
- } else {
- status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex,
- timeout);
- }
-
- if (ACPI_FAILURE(status)) {
-
- /* Includes failure from a timeout on time_desc */
-
- return_ACPI_STATUS(status);
- }
-
- /* Acquired the mutex: update mutex object */
-
- obj_desc->mutex.thread_id = thread_id;
- obj_desc->mutex.acquisition_depth = 1;
- obj_desc->mutex.original_sync_level = 0;
- obj_desc->mutex.owner_thread = NULL; /* Used only for AML Acquire() */
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_acquire_mutex
- *
- * PARAMETERS: time_desc - Timeout integer
- * obj_desc - Mutex object
- * walk_state - Current method execution state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Acquire an AML mutex
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
- union acpi_operand_object *obj_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc);
-
- if (!obj_desc) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Must have a valid thread ID */
-
- if (!walk_state->thread) {
- ACPI_ERROR((AE_INFO,
- "Cannot acquire Mutex [%4.4s], null thread info",
- acpi_ut_get_node_name(obj_desc->mutex.node)));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /*
- * Current sync level must be less than or equal to the sync level of the
- * mutex. This mechanism provides some deadlock prevention
- */
- if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) {
- ACPI_ERROR((AE_INFO,
- "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%d)",
- acpi_ut_get_node_name(obj_desc->mutex.node),
- walk_state->thread->current_sync_level));
- return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
- }
-
- status = acpi_ex_acquire_mutex_object((u16) time_desc->integer.value,
- obj_desc,
- walk_state->thread->thread_id);
- if (ACPI_SUCCESS(status) && obj_desc->mutex.acquisition_depth == 1) {
-
- /* Save Thread object, original/current sync levels */
-
- obj_desc->mutex.owner_thread = walk_state->thread;
- obj_desc->mutex.original_sync_level =
- walk_state->thread->current_sync_level;
- walk_state->thread->current_sync_level =
- obj_desc->mutex.sync_level;
-
- /* Link the mutex to the current thread for force-unlock at method exit */
-
- acpi_ex_link_mutex(obj_desc, walk_state->thread);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_release_mutex_object
- *
- * PARAMETERS: obj_desc - The object descriptor for this op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release a previously acquired Mutex, low level interface.
- * Provides a common path that supports multiple releases (after
- * previous multiple acquires) by the same thread.
- *
- * MUTEX: Interpreter must be locked
- *
- * NOTE: This interface is called from three places:
- * 1) From acpi_ex_release_mutex, via an AML Acquire() operator
- * 2) From acpi_ex_release_global_lock when an AML Field access requires the
- * global lock
- * 3) From the external interface, acpi_release_global_lock
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_release_mutex_object);
-
- if (obj_desc->mutex.acquisition_depth == 0) {
- return (AE_NOT_ACQUIRED);
- }
-
- /* Match multiple Acquires with multiple Releases */
-
- obj_desc->mutex.acquisition_depth--;
- if (obj_desc->mutex.acquisition_depth != 0) {
-
- /* Just decrement the depth and return */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- if (obj_desc->mutex.owner_thread) {
-
- /* Unlink the mutex from the owner's list */
-
- acpi_ex_unlink_mutex(obj_desc);
- obj_desc->mutex.owner_thread = NULL;
- }
-
- /* Release the mutex, special case for Global Lock */
-
- if (obj_desc == acpi_gbl_global_lock_mutex) {
- status = acpi_ev_release_global_lock();
- } else {
- acpi_os_release_mutex(obj_desc->mutex.os_mutex);
- }
-
- /* Clear mutex info */
-
- obj_desc->mutex.thread_id = NULL;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_release_mutex
- *
- * PARAMETERS: obj_desc - The object descriptor for this op
- * walk_state - Current method execution state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release a previously acquired Mutex.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_release_mutex);
-
- if (!obj_desc) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* The mutex must have been previously acquired in order to release it */
-
- if (!obj_desc->mutex.owner_thread) {
- ACPI_ERROR((AE_INFO,
- "Cannot release Mutex [%4.4s], not acquired",
- acpi_ut_get_node_name(obj_desc->mutex.node)));
- return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED);
- }
-
- /*
- * The Mutex is owned, but this thread must be the owner.
- * Special case for Global Lock, any thread can release
- */
- if ((obj_desc->mutex.owner_thread->thread_id !=
- walk_state->thread->thread_id)
- && (obj_desc != acpi_gbl_global_lock_mutex)) {
- ACPI_ERROR((AE_INFO,
- "Thread %lX cannot release Mutex [%4.4s] acquired by thread %lX",
- (unsigned long)walk_state->thread->thread_id,
- acpi_ut_get_node_name(obj_desc->mutex.node),
- (unsigned long)obj_desc->mutex.owner_thread->
- thread_id));
- return_ACPI_STATUS(AE_AML_NOT_OWNER);
- }
-
- /* Must have a valid thread ID */
-
- if (!walk_state->thread) {
- ACPI_ERROR((AE_INFO,
- "Cannot release Mutex [%4.4s], null thread info",
- acpi_ut_get_node_name(obj_desc->mutex.node)));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /*
- * The sync level of the mutex must be less than or equal to the current
- * sync level
- */
- if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) {
- ACPI_ERROR((AE_INFO,
- "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d",
- acpi_ut_get_node_name(obj_desc->mutex.node),
- obj_desc->mutex.sync_level,
- walk_state->thread->current_sync_level));
- return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
- }
-
- status = acpi_ex_release_mutex_object(obj_desc);
-
- if (obj_desc->mutex.acquisition_depth == 0) {
-
- /* Restore the original sync_level */
-
- walk_state->thread->current_sync_level =
- obj_desc->mutex.original_sync_level;
- }
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_release_all_mutexes
- *
- * PARAMETERS: Thread - Current executing thread object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release all mutexes held by this thread
- *
- * NOTE: This function is called as the thread is exiting the interpreter.
- * Mutexes are not released when an individual control method is exited, but
- * only when the parent thread actually exits the interpreter. This allows one
- * method to acquire a mutex, and a different method to release it, as long as
- * this is performed underneath a single parent control method.
- *
- ******************************************************************************/
-
-void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread)
-{
- union acpi_operand_object *next = thread->acquired_mutex_list;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Traverse the list of owned mutexes, releasing each one */
-
- while (next) {
- obj_desc = next;
- next = obj_desc->mutex.next;
-
- obj_desc->mutex.prev = NULL;
- obj_desc->mutex.next = NULL;
- obj_desc->mutex.acquisition_depth = 0;
-
- /* Release the mutex, special case for Global Lock */
-
- if (obj_desc == acpi_gbl_global_lock_mutex) {
-
- /* Ignore errors */
-
- (void)acpi_ev_release_global_lock();
- } else {
- acpi_os_release_mutex(obj_desc->mutex.os_mutex);
- }
-
- /* Mark mutex unowned */
-
- obj_desc->mutex.owner_thread = NULL;
- obj_desc->mutex.thread_id = NULL;
-
- /* Update Thread sync_level (Last mutex is the important one) */
-
- thread->current_sync_level =
- obj_desc->mutex.original_sync_level;
- }
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exnames - interpreter/scanner name load/execute
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exnames")
-
-/* Local prototypes */
-static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs);
-
-static acpi_status
-acpi_ex_name_segment(u8 ** in_aml_address, char *name_string);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_allocate_name_string
- *
- * PARAMETERS: prefix_count - Count of parent levels. Special cases:
- * (-1)==root, 0==none
- * num_name_segs - count of 4-character name segments
- *
- * RETURN: A pointer to the allocated string segment. This segment must
- * be deleted by the caller.
- *
- * DESCRIPTION: Allocate a buffer for a name string. Ensure allocated name
- * string is long enough, and set up prefix if any.
- *
- ******************************************************************************/
-
-static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
-{
- char *temp_ptr;
- char *name_string;
- u32 size_needed;
-
- ACPI_FUNCTION_TRACE(ex_allocate_name_string);
-
- /*
- * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix.
- * Also, one byte for the null terminator.
- * This may actually be somewhat longer than needed.
- */
- if (prefix_count == ACPI_UINT32_MAX) {
-
- /* Special case for root */
-
- size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
- } else {
- size_needed =
- prefix_count + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1;
- }
-
- /*
- * Allocate a buffer for the name.
- * This buffer must be deleted by the caller!
- */
- name_string = ACPI_ALLOCATE(size_needed);
- if (!name_string) {
- ACPI_ERROR((AE_INFO,
- "Could not allocate size %d", size_needed));
- return_PTR(NULL);
- }
-
- temp_ptr = name_string;
-
- /* Set up Root or Parent prefixes if needed */
-
- if (prefix_count == ACPI_UINT32_MAX) {
- *temp_ptr++ = AML_ROOT_PREFIX;
- } else {
- while (prefix_count--) {
- *temp_ptr++ = AML_PARENT_PREFIX;
- }
- }
-
- /* Set up Dual or Multi prefixes if needed */
-
- if (num_name_segs > 2) {
-
- /* Set up multi prefixes */
-
- *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP;
- *temp_ptr++ = (char)num_name_segs;
- } else if (2 == num_name_segs) {
-
- /* Set up dual prefixes */
-
- *temp_ptr++ = AML_DUAL_NAME_PREFIX;
- }
-
- /*
- * Terminate string following prefixes. acpi_ex_name_segment() will
- * append the segment(s)
- */
- *temp_ptr = 0;
-
- return_PTR(name_string);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_name_segment
- *
- * PARAMETERS: in_aml_address - Pointer to the name in the AML code
- * name_string - Where to return the name. The name is appended
- * to any existing string to form a namepath
- *
- * RETURN: Status
- *
- * DESCRIPTION: Extract an ACPI name (4 bytes) from the AML byte stream
- *
- ******************************************************************************/
-
-static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
-{
- char *aml_address = (void *)*in_aml_address;
- acpi_status status = AE_OK;
- u32 index;
- char char_buf[5];
-
- ACPI_FUNCTION_TRACE(ex_name_segment);
-
- /*
- * If first character is a digit, then we know that we aren't looking at a
- * valid name segment
- */
- char_buf[0] = *aml_address;
-
- if ('0' <= char_buf[0] && char_buf[0] <= '9') {
- ACPI_ERROR((AE_INFO, "Invalid leading digit: %c", char_buf[0]));
- return_ACPI_STATUS(AE_CTRL_PENDING);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Bytes from stream:\n"));
-
- for (index = 0; (index < ACPI_NAME_SIZE)
- && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) {
- char_buf[index] = *aml_address++;
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index]));
- }
-
- /* Valid name segment */
-
- if (index == 4) {
-
- /* Found 4 valid characters */
-
- char_buf[4] = '\0';
-
- if (name_string) {
- ACPI_STRCAT(name_string, char_buf);
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Appended to - %s\n", name_string));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "No Name string - %s\n", char_buf));
- }
- } else if (index == 0) {
- /*
- * First character was not a valid name character,
- * so we are looking at something other than a name.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Leading character is not alpha: %02Xh (not a name)\n",
- char_buf[0]));
- status = AE_CTRL_PENDING;
- } else {
- /*
- * Segment started with one or more valid characters, but fewer than
- * the required 4
- */
- status = AE_AML_BAD_NAME;
- ACPI_ERROR((AE_INFO,
- "Bad character %02x in name, at %p",
- *aml_address, aml_address));
- }
-
- *in_aml_address = ACPI_CAST_PTR(u8, aml_address);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_get_name_string
- *
- * PARAMETERS: data_type - Object type to be associated with this
- * name
- * in_aml_address - Pointer to the namestring in the AML code
- * out_name_string - Where the namestring is returned
- * out_name_length - Length of the returned string
- *
- * RETURN: Status, namestring and length
- *
- * DESCRIPTION: Extract a full namepath from the AML byte stream,
- * including any prefixes.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_get_name_string(acpi_object_type data_type,
- u8 * in_aml_address,
- char **out_name_string, u32 * out_name_length)
-{
- acpi_status status = AE_OK;
- u8 *aml_address = in_aml_address;
- char *name_string = NULL;
- u32 num_segments;
- u32 prefix_count = 0;
- u8 has_prefix = FALSE;
-
- ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address);
-
- if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type ||
- ACPI_TYPE_LOCAL_BANK_FIELD == data_type ||
- ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) {
-
- /* Disallow prefixes for types associated with field_unit names */
-
- name_string = acpi_ex_allocate_name_string(0, 1);
- if (!name_string) {
- status = AE_NO_MEMORY;
- } else {
- status =
- acpi_ex_name_segment(&aml_address, name_string);
- }
- } else {
- /*
- * data_type is not a field name.
- * Examine first character of name for root or parent prefix operators
- */
- switch (*aml_address) {
- case AML_ROOT_PREFIX:
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "RootPrefix(\\) at %p\n",
- aml_address));
-
- /*
- * Remember that we have a root_prefix --
- * see comment in acpi_ex_allocate_name_string()
- */
- aml_address++;
- prefix_count = ACPI_UINT32_MAX;
- has_prefix = TRUE;
- break;
-
- case AML_PARENT_PREFIX:
-
- /* Increment past possibly multiple parent prefixes */
-
- do {
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "ParentPrefix (^) at %p\n",
- aml_address));
-
- aml_address++;
- prefix_count++;
-
- } while (*aml_address == AML_PARENT_PREFIX);
-
- has_prefix = TRUE;
- break;
-
- default:
-
- /* Not a prefix character */
-
- break;
- }
-
- /* Examine first character of name for name segment prefix operator */
-
- switch (*aml_address) {
- case AML_DUAL_NAME_PREFIX:
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "DualNamePrefix at %p\n",
- aml_address));
-
- aml_address++;
- name_string =
- acpi_ex_allocate_name_string(prefix_count, 2);
- if (!name_string) {
- status = AE_NO_MEMORY;
- break;
- }
-
- /* Indicate that we processed a prefix */
-
- has_prefix = TRUE;
-
- status =
- acpi_ex_name_segment(&aml_address, name_string);
- if (ACPI_SUCCESS(status)) {
- status =
- acpi_ex_name_segment(&aml_address,
- name_string);
- }
- break;
-
- case AML_MULTI_NAME_PREFIX_OP:
-
- ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
- "MultiNamePrefix at %p\n",
- aml_address));
-
- /* Fetch count of segments remaining in name path */
-
- aml_address++;
- num_segments = *aml_address;
-
- name_string =
- acpi_ex_allocate_name_string(prefix_count,
- num_segments);
- if (!name_string) {
- status = AE_NO_MEMORY;
- break;
- }
-
- /* Indicate that we processed a prefix */
-
- aml_address++;
- has_prefix = TRUE;
-
- while (num_segments &&
- (status =
- acpi_ex_name_segment(&aml_address,
- name_string)) == AE_OK) {
- num_segments--;
- }
-
- break;
-
- case 0:
-
- /* null_name valid as of 8-12-98 ASL/AML Grammar Update */
-
- if (prefix_count == ACPI_UINT32_MAX) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "NameSeg is \"\\\" followed by NULL\n"));
- }
-
- /* Consume the NULL byte */
-
- aml_address++;
- name_string =
- acpi_ex_allocate_name_string(prefix_count, 0);
- if (!name_string) {
- status = AE_NO_MEMORY;
- break;
- }
-
- break;
-
- default:
-
- /* Name segment string */
-
- name_string =
- acpi_ex_allocate_name_string(prefix_count, 1);
- if (!name_string) {
- status = AE_NO_MEMORY;
- break;
- }
-
- status =
- acpi_ex_name_segment(&aml_address, name_string);
- break;
- }
- }
-
- if (AE_CTRL_PENDING == status && has_prefix) {
-
- /* Ran out of segments after processing a prefix */
-
- ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string));
- status = AE_AML_BAD_NAME;
- }
-
- if (ACPI_FAILURE(status)) {
- if (name_string) {
- ACPI_FREE(name_string);
- }
- return_ACPI_STATUS(status);
- }
-
- *out_name_string = name_string;
- *out_name_length = (u32) (aml_address - in_aml_address);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exoparg1 - AML execution - opcodes with 1 argument
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exoparg1")
-
-/*!
- * Naming convention for AML interpreter execution routines.
- *
- * The routines that begin execution of AML opcodes are named with a common
- * convention based upon the number of arguments, the number of target operands,
- * and whether or not a value is returned:
- *
- * AcpiExOpcode_xA_yT_zR
- *
- * Where:
- *
- * xA - ARGUMENTS: The number of arguments (input operands) that are
- * required for this opcode type (0 through 6 args).
- * yT - TARGETS: The number of targets (output operands) that are required
- * for this opcode type (0, 1, or 2 targets).
- * zR - RETURN VALUE: Indicates whether this opcode type returns a value
- * as the function return (0 or 1).
- *
- * The AcpiExOpcode* functions are called via the Dispatcher component with
- * fully resolved operands.
-!*/
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_0A_0T_1R
- *
- * PARAMETERS: walk_state - Current state (contains AML opcode)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute operator with no operands, one return value
- *
- ******************************************************************************/
-acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *return_desc = NULL;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Examine the AML opcode */
-
- switch (walk_state->opcode) {
- case AML_TIMER_OP: /* Timer () */
-
- /* Create a return object of type Integer */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
- return_desc->integer.value = acpi_os_get_timer();
- break;
-
- default: /* Unknown opcode */
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- break;
- }
-
- cleanup:
-
- /* Delete return object on error */
-
- if ((ACPI_FAILURE(status)) || walk_state->result_obj) {
- acpi_ut_remove_reference(return_desc);
- walk_state->result_obj = NULL;
- } else {
- /* Save the return value */
-
- walk_state->result_obj = return_desc;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_1A_0T_0R
- *
- * PARAMETERS: walk_state - Current state (contains AML opcode)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute Type 1 monadic operator with numeric operand on
- * object stack
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Examine the AML opcode */
-
- switch (walk_state->opcode) {
- case AML_RELEASE_OP: /* Release (mutex_object) */
-
- status = acpi_ex_release_mutex(operand[0], walk_state);
- break;
-
- case AML_RESET_OP: /* Reset (event_object) */
-
- status = acpi_ex_system_reset_event(operand[0]);
- break;
-
- case AML_SIGNAL_OP: /* Signal (event_object) */
-
- status = acpi_ex_system_signal_event(operand[0]);
- break;
-
- case AML_SLEEP_OP: /* Sleep (msec_time) */
-
- status = acpi_ex_system_do_suspend(operand[0]->integer.value);
- break;
-
- case AML_STALL_OP: /* Stall (usec_time) */
-
- status =
- acpi_ex_system_do_stall((u32) operand[0]->integer.value);
- break;
-
- case AML_UNLOAD_OP: /* Unload (Handle) */
-
- status = acpi_ex_unload_table(operand[0]);
- break;
-
- default: /* Unknown opcode */
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_1A_1T_0R
- *
- * PARAMETERS: walk_state - Current state (contains AML opcode)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with one argument, one target, and no
- * return value.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object **operand = &walk_state->operands[0];
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Examine the AML opcode */
-
- switch (walk_state->opcode) {
- case AML_LOAD_OP:
-
- status = acpi_ex_load_op(operand[0], operand[1], walk_state);
- break;
-
- default: /* Unknown opcode */
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- cleanup:
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_1A_1T_1R
- *
- * PARAMETERS: walk_state - Current state (contains AML opcode)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with one argument, one target, and a
- * return value.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc = NULL;
- union acpi_operand_object *return_desc2 = NULL;
- u32 temp32;
- u32 i;
- acpi_integer power_of_ten;
- acpi_integer digit;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Examine the AML opcode */
-
- switch (walk_state->opcode) {
- case AML_BIT_NOT_OP:
- case AML_FIND_SET_LEFT_BIT_OP:
- case AML_FIND_SET_RIGHT_BIT_OP:
- case AML_FROM_BCD_OP:
- case AML_TO_BCD_OP:
- case AML_COND_REF_OF_OP:
-
- /* Create a return object of type Integer for these opcodes */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- switch (walk_state->opcode) {
- case AML_BIT_NOT_OP: /* Not (Operand, Result) */
-
- return_desc->integer.value = ~operand[0]->integer.value;
- break;
-
- case AML_FIND_SET_LEFT_BIT_OP: /* find_set_left_bit (Operand, Result) */
-
- return_desc->integer.value = operand[0]->integer.value;
-
- /*
- * Acpi specification describes Integer type as a little
- * endian unsigned value, so this boundary condition is valid.
- */
- for (temp32 = 0; return_desc->integer.value &&
- temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
- return_desc->integer.value >>= 1;
- }
-
- return_desc->integer.value = temp32;
- break;
-
- case AML_FIND_SET_RIGHT_BIT_OP: /* find_set_right_bit (Operand, Result) */
-
- return_desc->integer.value = operand[0]->integer.value;
-
- /*
- * The Acpi specification describes Integer type as a little
- * endian unsigned value, so this boundary condition is valid.
- */
- for (temp32 = 0; return_desc->integer.value &&
- temp32 < ACPI_INTEGER_BIT_SIZE; ++temp32) {
- return_desc->integer.value <<= 1;
- }
-
- /* Since the bit position is one-based, subtract from 33 (65) */
-
- return_desc->integer.value =
- temp32 ==
- 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32;
- break;
-
- case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */
-
- /*
- * The 64-bit ACPI integer can hold 16 4-bit BCD characters
- * (if table is 32-bit, integer can hold 8 BCD characters)
- * Convert each 4-bit BCD value
- */
- power_of_ten = 1;
- return_desc->integer.value = 0;
- digit = operand[0]->integer.value;
-
- /* Convert each BCD digit (each is one nybble wide) */
-
- for (i = 0;
- (i < acpi_gbl_integer_nybble_width) && (digit > 0);
- i++) {
-
- /* Get the least significant 4-bit BCD digit */
-
- temp32 = ((u32) digit) & 0xF;
-
- /* Check the range of the digit */
-
- if (temp32 > 9) {
- ACPI_ERROR((AE_INFO,
- "BCD digit too large (not decimal): 0x%X",
- temp32));
-
- status = AE_AML_NUMERIC_OVERFLOW;
- goto cleanup;
- }
-
- /* Sum the digit into the result with the current power of 10 */
-
- return_desc->integer.value +=
- (((acpi_integer) temp32) * power_of_ten);
-
- /* Shift to next BCD digit */
-
- digit >>= 4;
-
- /* Next power of 10 */
-
- power_of_ten *= 10;
- }
- break;
-
- case AML_TO_BCD_OP: /* to_bcd (Operand, Result) */
-
- return_desc->integer.value = 0;
- digit = operand[0]->integer.value;
-
- /* Each BCD digit is one nybble wide */
-
- for (i = 0;
- (i < acpi_gbl_integer_nybble_width) && (digit > 0);
- i++) {
- (void)acpi_ut_short_divide(digit, 10, &digit,
- &temp32);
-
- /*
- * Insert the BCD digit that resides in the
- * remainder from above
- */
- return_desc->integer.value |=
- (((acpi_integer) temp32) << ACPI_MUL_4(i));
- }
-
- /* Overflow if there is any data left in Digit */
-
- if (digit > 0) {
- ACPI_ERROR((AE_INFO,
- "Integer too large to convert to BCD: %8.8X%8.8X",
- ACPI_FORMAT_UINT64(operand[0]->
- integer.value)));
- status = AE_AML_NUMERIC_OVERFLOW;
- goto cleanup;
- }
- break;
-
- case AML_COND_REF_OF_OP: /* cond_ref_of (source_object, Result) */
-
- /*
- * This op is a little strange because the internal return value is
- * different than the return value stored in the result descriptor
- * (There are really two return values)
- */
- if ((struct acpi_namespace_node *)operand[0] ==
- acpi_gbl_root_node) {
- /*
- * This means that the object does not exist in the namespace,
- * return FALSE
- */
- return_desc->integer.value = 0;
- goto cleanup;
- }
-
- /* Get the object reference, store it, and remove our reference */
-
- status = acpi_ex_get_object_reference(operand[0],
- &return_desc2,
- walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- status =
- acpi_ex_store(return_desc2, operand[1], walk_state);
- acpi_ut_remove_reference(return_desc2);
-
- /* The object exists in the namespace, return TRUE */
-
- return_desc->integer.value = ACPI_INTEGER_MAX;
- goto cleanup;
-
- default:
- /* No other opcodes get here */
- break;
- }
- break;
-
- case AML_STORE_OP: /* Store (Source, Target) */
-
- /*
- * A store operand is typically a number, string, buffer or lvalue
- * Be careful about deleting the source object,
- * since the object itself may have been stored.
- */
- status = acpi_ex_store(operand[0], operand[1], walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* It is possible that the Store already produced a return object */
-
- if (!walk_state->result_obj) {
- /*
- * Normally, we would remove a reference on the Operand[0]
- * parameter; But since it is being used as the internal return
- * object (meaning we would normally increment it), the two
- * cancel out, and we simply don't do anything.
- */
- walk_state->result_obj = operand[0];
- walk_state->operands[0] = NULL; /* Prevent deletion */
- }
- return_ACPI_STATUS(status);
-
- /*
- * ACPI 2.0 Opcodes
- */
- case AML_COPY_OP: /* Copy (Source, Target) */
-
- status =
- acpi_ut_copy_iobject_to_iobject(operand[0], &return_desc,
- walk_state);
- break;
-
- case AML_TO_DECSTRING_OP: /* to_decimal_string (Data, Result) */
-
- status = acpi_ex_convert_to_string(operand[0], &return_desc,
- ACPI_EXPLICIT_CONVERT_DECIMAL);
- if (return_desc == operand[0]) {
-
- /* No conversion performed, add ref to handle return value */
- acpi_ut_add_reference(return_desc);
- }
- break;
-
- case AML_TO_HEXSTRING_OP: /* to_hex_string (Data, Result) */
-
- status = acpi_ex_convert_to_string(operand[0], &return_desc,
- ACPI_EXPLICIT_CONVERT_HEX);
- if (return_desc == operand[0]) {
-
- /* No conversion performed, add ref to handle return value */
- acpi_ut_add_reference(return_desc);
- }
- break;
-
- case AML_TO_BUFFER_OP: /* to_buffer (Data, Result) */
-
- status = acpi_ex_convert_to_buffer(operand[0], &return_desc);
- if (return_desc == operand[0]) {
-
- /* No conversion performed, add ref to handle return value */
- acpi_ut_add_reference(return_desc);
- }
- break;
-
- case AML_TO_INTEGER_OP: /* to_integer (Data, Result) */
-
- status = acpi_ex_convert_to_integer(operand[0], &return_desc,
- ACPI_ANY_BASE);
- if (return_desc == operand[0]) {
-
- /* No conversion performed, add ref to handle return value */
- acpi_ut_add_reference(return_desc);
- }
- break;
-
- case AML_SHIFT_LEFT_BIT_OP: /* shift_left_bit (Source, bit_num) */
- case AML_SHIFT_RIGHT_BIT_OP: /* shift_right_bit (Source, bit_num) */
-
- /* These are two obsolete opcodes */
-
- ACPI_ERROR((AE_INFO,
- "%s is obsolete and not implemented",
- acpi_ps_get_opcode_name(walk_state->opcode)));
- status = AE_SUPPORT;
- goto cleanup;
-
- default: /* Unknown opcode */
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- if (ACPI_SUCCESS(status)) {
-
- /* Store the return value computed above into the target object */
-
- status = acpi_ex_store(return_desc, operand[1], walk_state);
- }
-
- cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(return_desc);
- }
-
- /* Save return object on success */
-
- else if (!walk_state->result_obj) {
- walk_state->result_obj = return_desc;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_1A_0T_1R
- *
- * PARAMETERS: walk_state - Current state (contains AML opcode)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with one argument, no target, and a return value
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *temp_desc;
- union acpi_operand_object *return_desc = NULL;
- acpi_status status = AE_OK;
- u32 type;
- acpi_integer value;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Examine the AML opcode */
-
- switch (walk_state->opcode) {
- case AML_LNOT_OP: /* LNot (Operand) */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Set result to ONES (TRUE) if Value == 0. Note:
- * return_desc->Integer.Value is initially == 0 (FALSE) from above.
- */
- if (!operand[0]->integer.value) {
- return_desc->integer.value = ACPI_INTEGER_MAX;
- }
- break;
-
- case AML_DECREMENT_OP: /* Decrement (Operand) */
- case AML_INCREMENT_OP: /* Increment (Operand) */
-
- /*
- * Create a new integer. Can't just get the base integer and
- * increment it because it may be an Arg or Field.
- */
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Since we are expecting a Reference operand, it can be either a
- * NS Node or an internal object.
- */
- temp_desc = operand[0];
- if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) ==
- ACPI_DESC_TYPE_OPERAND) {
-
- /* Internal reference object - prevent deletion */
-
- acpi_ut_add_reference(temp_desc);
- }
-
- /*
- * Convert the Reference operand to an Integer (This removes a
- * reference on the Operand[0] object)
- *
- * NOTE: We use LNOT_OP here in order to force resolution of the
- * reference operand to an actual integer.
- */
- status =
- acpi_ex_resolve_operands(AML_LNOT_OP, &temp_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While resolving operands for [%s]",
- acpi_ps_get_opcode_name(walk_state->
- opcode)));
-
- goto cleanup;
- }
-
- /*
- * temp_desc is now guaranteed to be an Integer object --
- * Perform the actual increment or decrement
- */
- if (walk_state->opcode == AML_INCREMENT_OP) {
- return_desc->integer.value =
- temp_desc->integer.value + 1;
- } else {
- return_desc->integer.value =
- temp_desc->integer.value - 1;
- }
-
- /* Finished with this Integer object */
-
- acpi_ut_remove_reference(temp_desc);
-
- /*
- * Store the result back (indirectly) through the original
- * Reference object
- */
- status = acpi_ex_store(return_desc, operand[0], walk_state);
- break;
-
- case AML_TYPE_OP: /* object_type (source_object) */
-
- /*
- * Note: The operand is not resolved at this point because we want to
- * get the associated object, not its value. For example, we don't
- * want to resolve a field_unit to its value, we want the actual
- * field_unit object.
- */
-
- /* Get the type of the base object */
-
- status =
- acpi_ex_resolve_multiple(walk_state, operand[0], &type,
- NULL);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Allocate a descriptor to hold the type. */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- return_desc->integer.value = type;
- break;
-
- case AML_SIZE_OF_OP: /* size_of (source_object) */
-
- /*
- * Note: The operand is not resolved at this point because we want to
- * get the associated object, not its value.
- */
-
- /* Get the base object */
-
- status = acpi_ex_resolve_multiple(walk_state,
- operand[0], &type,
- &temp_desc);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * The type of the base object must be integer, buffer, string, or
- * package. All others are not supported.
- *
- * NOTE: Integer is not specifically supported by the ACPI spec,
- * but is supported implicitly via implicit operand conversion.
- * rather than bother with conversion, we just use the byte width
- * global (4 or 8 bytes).
- */
- switch (type) {
- case ACPI_TYPE_INTEGER:
- value = acpi_gbl_integer_byte_width;
- break;
-
- case ACPI_TYPE_STRING:
- value = temp_desc->string.length;
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* Buffer arguments may not be evaluated at this point */
-
- status = acpi_ds_get_buffer_arguments(temp_desc);
- value = temp_desc->buffer.length;
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- /* Package arguments may not be evaluated at this point */
-
- status = acpi_ds_get_package_arguments(temp_desc);
- value = temp_desc->package.count;
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Operand must be Buffer/Integer/String/Package - found type %s",
- acpi_ut_get_type_name(type)));
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
-
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * Now that we have the size of the object, create a result
- * object to hold the value
- */
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- return_desc->integer.value = value;
- break;
-
- case AML_REF_OF_OP: /* ref_of (source_object) */
-
- status =
- acpi_ex_get_object_reference(operand[0], &return_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
- break;
-
- case AML_DEREF_OF_OP: /* deref_of (obj_reference | String) */
-
- /* Check for a method local or argument, or standalone String */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
- ACPI_DESC_TYPE_NAMED) {
- temp_desc =
- acpi_ns_get_attached_object((struct
- acpi_namespace_node *)
- operand[0]);
- if (temp_desc
- &&
- ((ACPI_GET_OBJECT_TYPE(temp_desc) ==
- ACPI_TYPE_STRING)
- || (ACPI_GET_OBJECT_TYPE(temp_desc) ==
- ACPI_TYPE_LOCAL_REFERENCE))) {
- operand[0] = temp_desc;
- acpi_ut_add_reference(temp_desc);
- } else {
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
- } else {
- switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
- case ACPI_TYPE_LOCAL_REFERENCE:
- /*
- * This is a deref_of (local_x | arg_x)
- *
- * Must resolve/dereference the local/arg reference first
- */
- switch (operand[0]->reference.class) {
- case ACPI_REFCLASS_LOCAL:
- case ACPI_REFCLASS_ARG:
-
- /* Set Operand[0] to the value of the local/arg */
-
- status =
- acpi_ds_method_data_get_value
- (operand[0]->reference.class,
- operand[0]->reference.value,
- walk_state, &temp_desc);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /*
- * Delete our reference to the input object and
- * point to the object just retrieved
- */
- acpi_ut_remove_reference(operand[0]);
- operand[0] = temp_desc;
- break;
-
- case ACPI_REFCLASS_REFOF:
-
- /* Get the object to which the reference refers */
-
- temp_desc =
- operand[0]->reference.object;
- acpi_ut_remove_reference(operand[0]);
- operand[0] = temp_desc;
- break;
-
- default:
-
- /* Must be an Index op - handled below */
- break;
- }
- break;
-
- case ACPI_TYPE_STRING:
- break;
-
- default:
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) !=
- ACPI_DESC_TYPE_NAMED) {
- if (ACPI_GET_OBJECT_TYPE(operand[0]) ==
- ACPI_TYPE_STRING) {
- /*
- * This is a deref_of (String). The string is a reference
- * to a named ACPI object.
- *
- * 1) Find the owning Node
- * 2) Dereference the node to an actual object. Could be a
- * Field, so we need to resolve the node to a value.
- */
- status =
- acpi_ns_get_node(walk_state->scope_info->
- scope.node,
- operand[0]->string.pointer,
- ACPI_NS_SEARCH_PARENT,
- ACPI_CAST_INDIRECT_PTR
- (struct
- acpi_namespace_node,
- &return_desc));
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- status =
- acpi_ex_resolve_node_to_value
- (ACPI_CAST_INDIRECT_PTR
- (struct acpi_namespace_node, &return_desc),
- walk_state);
- goto cleanup;
- }
- }
-
- /* Operand[0] may have changed from the code above */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) ==
- ACPI_DESC_TYPE_NAMED) {
- /*
- * This is a deref_of (object_reference)
- * Get the actual object from the Node (This is the dereference).
- * This case may only happen when a local_x or arg_x is
- * dereferenced above.
- */
- return_desc = acpi_ns_get_attached_object((struct
- acpi_namespace_node
- *)
- operand[0]);
- acpi_ut_add_reference(return_desc);
- } else {
- /*
- * This must be a reference object produced by either the
- * Index() or ref_of() operator
- */
- switch (operand[0]->reference.class) {
- case ACPI_REFCLASS_INDEX:
-
- /*
- * The target type for the Index operator must be
- * either a Buffer or a Package
- */
- switch (operand[0]->reference.target_type) {
- case ACPI_TYPE_BUFFER_FIELD:
-
- temp_desc =
- operand[0]->reference.object;
-
- /*
- * Create a new object that contains one element of the
- * buffer -- the element pointed to by the index.
- *
- * NOTE: index into a buffer is NOT a pointer to a
- * sub-buffer of the main buffer, it is only a pointer to a
- * single element (byte) of the buffer!
- */
- return_desc =
- acpi_ut_create_internal_object
- (ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Since we are returning the value of the buffer at the
- * indexed location, we don't need to add an additional
- * reference to the buffer itself.
- */
- return_desc->integer.value =
- temp_desc->buffer.
- pointer[operand[0]->reference.
- value];
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- /*
- * Return the referenced element of the package. We must
- * add another reference to the referenced object, however.
- */
- return_desc =
- *(operand[0]->reference.where);
- if (return_desc) {
- acpi_ut_add_reference
- (return_desc);
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown Index TargetType %X in reference object %p",
- operand[0]->reference.
- target_type, operand[0]));
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
- break;
-
- case ACPI_REFCLASS_REFOF:
-
- return_desc = operand[0]->reference.object;
-
- if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) ==
- ACPI_DESC_TYPE_NAMED) {
- return_desc =
- acpi_ns_get_attached_object((struct
- acpi_namespace_node
- *)
- return_desc);
- }
-
- /* Add another reference to the object! */
-
- acpi_ut_add_reference(return_desc);
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Unknown class in reference(%p) - %2.2X",
- operand[0],
- operand[0]->reference.class));
-
- status = AE_TYPE;
- goto cleanup;
- }
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(return_desc);
- }
-
- /* Save return object on success */
-
- else {
- walk_state->result_obj = return_desc;
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: exoparg2 - AML execution - opcodes with 2 arguments
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acinterp.h>
-#include <acpi/acevents.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exoparg2")
-
-/*!
- * Naming convention for AML interpreter execution routines.
- *
- * The routines that begin execution of AML opcodes are named with a common
- * convention based upon the number of arguments, the number of target operands,
- * and whether or not a value is returned:
- *
- * AcpiExOpcode_xA_yT_zR
- *
- * Where:
- *
- * xA - ARGUMENTS: The number of arguments (input operands) that are
- * required for this opcode type (1 through 6 args).
- * yT - TARGETS: The number of targets (output operands) that are required
- * for this opcode type (0, 1, or 2 targets).
- * zR - RETURN VALUE: Indicates whether this opcode type returns a value
- * as the function return (0 or 1).
- *
- * The AcpiExOpcode* functions are called via the Dispatcher component with
- * fully resolved operands.
-!*/
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_2A_0T_0R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with two arguments, no target, and no return
- * value.
- *
- * ALLOCATION: Deletes both operands
- *
- ******************************************************************************/
-acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- struct acpi_namespace_node *node;
- u32 value;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Examine the opcode */
-
- switch (walk_state->opcode) {
- case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */
-
- /* The first operand is a namespace node */
-
- node = (struct acpi_namespace_node *)operand[0];
-
- /* Second value is the notify value */
-
- value = (u32) operand[1]->integer.value;
-
- /* Are notifies allowed on this object? */
-
- if (!acpi_ev_is_notify_object(node)) {
- ACPI_ERROR((AE_INFO,
- "Unexpected notify object type [%s]",
- acpi_ut_get_type_name(node->type)));
-
- status = AE_AML_OPERAND_TYPE;
- break;
- }
-#ifdef ACPI_GPE_NOTIFY_CHECK
- /*
- * GPE method wake/notify check. Here, we want to ensure that we
- * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx
- * GPE method during system runtime. If we do, the GPE is marked
- * as "wake-only" and disabled.
- *
- * 1) Is the Notify() value == device_wake?
- * 2) Is this a GPE deferred method? (An _Lxx or _Exx method)
- * 3) Did the original GPE happen at system runtime?
- * (versus during wake)
- *
- * If all three cases are true, this is a wake-only GPE that should
- * be disabled at runtime.
- */
- if (value == 2) { /* device_wake */
- status =
- acpi_ev_check_for_wake_only_gpe(walk_state->
- gpe_event_info);
- if (ACPI_FAILURE(status)) {
-
- /* AE_WAKE_ONLY_GPE only error, means ignore this notify */
-
- return_ACPI_STATUS(AE_OK)
- }
- }
-#endif
-
- /*
- * Dispatch the notify to the appropriate handler
- * NOTE: the request is queued for execution after this method
- * completes. The notify handlers are NOT invoked synchronously
- * from this thread -- because handlers may in turn run other
- * control methods.
- */
- status = acpi_ev_queue_notify_request(node, value);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_2A_2T_1R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets
- * and one implicit return value.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc1 = NULL;
- union acpi_operand_object *return_desc2 = NULL;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Execute the opcode */
-
- switch (walk_state->opcode) {
- case AML_DIVIDE_OP:
-
- /* Divide (Dividend, Divisor, remainder_result quotient_result) */
-
- return_desc1 =
- acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc1) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- return_desc2 =
- acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc2) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Quotient to return_desc1, remainder to return_desc2 */
-
- status = acpi_ut_divide(operand[0]->integer.value,
- operand[1]->integer.value,
- &return_desc1->integer.value,
- &return_desc2->integer.value);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- /* Store the results to the target reference operands */
-
- status = acpi_ex_store(return_desc2, operand[2], walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- status = acpi_ex_store(return_desc1, operand[3], walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- cleanup:
- /*
- * Since the remainder is not returned indirectly, remove a reference to
- * it. Only the quotient is returned indirectly.
- */
- acpi_ut_remove_reference(return_desc2);
-
- if (ACPI_FAILURE(status)) {
-
- /* Delete the return object */
-
- acpi_ut_remove_reference(return_desc1);
- }
-
- /* Save return object (the remainder) on success */
-
- else {
- walk_state->result_obj = return_desc1;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_2A_1T_1R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with two arguments, one target, and a return
- * value.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc = NULL;
- acpi_integer index;
- acpi_status status = AE_OK;
- acpi_size length;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Execute the opcode */
-
- if (walk_state->op_info->flags & AML_MATH) {
-
- /* All simple math opcodes (add, etc.) */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- return_desc->integer.value =
- acpi_ex_do_math_op(walk_state->opcode,
- operand[0]->integer.value,
- operand[1]->integer.value);
- goto store_result_to_target;
- }
-
- switch (walk_state->opcode) {
- case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* return_desc will contain the remainder */
-
- status = acpi_ut_divide(operand[0]->integer.value,
- operand[1]->integer.value,
- NULL, &return_desc->integer.value);
- break;
-
- case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
-
- status = acpi_ex_do_concatenate(operand[0], operand[1],
- &return_desc, walk_state);
- break;
-
- case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */
-
- /*
- * Input object is guaranteed to be a buffer at this point (it may have
- * been converted.) Copy the raw buffer data to a new object of
- * type String.
- */
-
- /*
- * Get the length of the new string. It is the smallest of:
- * 1) Length of the input buffer
- * 2) Max length as specified in the to_string operator
- * 3) Length of input buffer up to a zero byte (null terminator)
- *
- * NOTE: A length of zero is ok, and will create a zero-length, null
- * terminated string.
- */
- length = 0;
- while ((length < operand[0]->buffer.length) &&
- (length < operand[1]->integer.value) &&
- (operand[0]->buffer.pointer[length])) {
- length++;
- }
-
- /* Allocate a new string object */
-
- return_desc = acpi_ut_create_string_object(length);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /*
- * Copy the raw buffer data with no transform.
- * (NULL terminated already)
- */
- ACPI_MEMCPY(return_desc->string.pointer,
- operand[0]->buffer.pointer, length);
- break;
-
- case AML_CONCAT_RES_OP:
-
- /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */
-
- status = acpi_ex_concat_template(operand[0], operand[1],
- &return_desc, walk_state);
- break;
-
- case AML_INDEX_OP: /* Index (Source Index Result) */
-
- /* Create the internal return object */
-
- return_desc =
- acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Initialize the Index reference object */
-
- index = operand[1]->integer.value;
- return_desc->reference.value = (u32) index;
- return_desc->reference.class = ACPI_REFCLASS_INDEX;
-
- /*
- * At this point, the Source operand is a String, Buffer, or Package.
- * Verify that the index is within range.
- */
- switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
- case ACPI_TYPE_STRING:
-
- if (index >= operand[0]->string.length) {
- status = AE_AML_STRING_LIMIT;
- }
-
- return_desc->reference.target_type =
- ACPI_TYPE_BUFFER_FIELD;
- break;
-
- case ACPI_TYPE_BUFFER:
-
- if (index >= operand[0]->buffer.length) {
- status = AE_AML_BUFFER_LIMIT;
- }
-
- return_desc->reference.target_type =
- ACPI_TYPE_BUFFER_FIELD;
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- if (index >= operand[0]->package.count) {
- status = AE_AML_PACKAGE_LIMIT;
- }
-
- return_desc->reference.target_type = ACPI_TYPE_PACKAGE;
- return_desc->reference.where =
- &operand[0]->package.elements[index];
- break;
-
- default:
-
- status = AE_AML_INTERNAL;
- goto cleanup;
- }
-
- /* Failure means that the Index was beyond the end of the object */
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Index (%X%8.8X) is beyond end of object",
- ACPI_FORMAT_UINT64(index)));
- goto cleanup;
- }
-
- /*
- * Save the target object and add a reference to it for the life
- * of the index
- */
- return_desc->reference.object = operand[0];
- acpi_ut_add_reference(operand[0]);
-
- /* Store the reference to the Target */
-
- status = acpi_ex_store(return_desc, operand[2], walk_state);
-
- /* Return the reference */
-
- walk_state->result_obj = return_desc;
- goto cleanup;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- break;
- }
-
- store_result_to_target:
-
- if (ACPI_SUCCESS(status)) {
- /*
- * Store the result of the operation (which is now in return_desc) into
- * the Target descriptor.
- */
- status = acpi_ex_store(return_desc, operand[2], walk_state);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- if (!walk_state->result_obj) {
- walk_state->result_obj = return_desc;
- }
- }
-
- cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(return_desc);
- walk_state->result_obj = NULL;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_2A_0T_1R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc = NULL;
- acpi_status status = AE_OK;
- u8 logical_result = FALSE;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- /* Create the internal return object */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Execute the Opcode */
-
- if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) {
-
- /* logical_op (Operand0, Operand1) */
-
- status = acpi_ex_do_logical_numeric_op(walk_state->opcode,
- operand[0]->integer.
- value,
- operand[1]->integer.
- value, &logical_result);
- goto store_logical_result;
- } else if (walk_state->op_info->flags & AML_LOGICAL) {
-
- /* logical_op (Operand0, Operand1) */
-
- status = acpi_ex_do_logical_op(walk_state->opcode, operand[0],
- operand[1], &logical_result);
- goto store_logical_result;
- }
-
- switch (walk_state->opcode) {
- case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */
-
- status =
- acpi_ex_acquire_mutex(operand[1], operand[0], walk_state);
- if (status == AE_TIME) {
- logical_result = TRUE; /* TRUE = Acquire timed out */
- status = AE_OK;
- }
- break;
-
- case AML_WAIT_OP: /* Wait (event_object, Timeout) */
-
- status = acpi_ex_system_wait_event(operand[1], operand[0]);
- if (status == AE_TIME) {
- logical_result = TRUE; /* TRUE, Wait timed out */
- status = AE_OK;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- store_logical_result:
- /*
- * Set return value to according to logical_result. logical TRUE (all ones)
- * Default is FALSE (zero)
- */
- if (logical_result) {
- return_desc->integer.value = ACPI_INTEGER_MAX;
- }
-
- cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(return_desc);
- }
-
- /* Save return object on success */
-
- else {
- walk_state->result_obj = return_desc;
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exoparg3 - AML execution - opcodes with 3 arguments
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exoparg3")
-
-/*!
- * Naming convention for AML interpreter execution routines.
- *
- * The routines that begin execution of AML opcodes are named with a common
- * convention based upon the number of arguments, the number of target operands,
- * and whether or not a value is returned:
- *
- * AcpiExOpcode_xA_yT_zR
- *
- * Where:
- *
- * xA - ARGUMENTS: The number of arguments (input operands) that are
- * required for this opcode type (1 through 6 args).
- * yT - TARGETS: The number of targets (output operands) that are required
- * for this opcode type (0, 1, or 2 targets).
- * zR - RETURN VALUE: Indicates whether this opcode type returns a value
- * as the function return (0 or 1).
- *
- * The AcpiExOpcode* functions are called via the Dispatcher component with
- * fully resolved operands.
-!*/
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_3A_0T_0R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute Triadic operator (3 operands)
- *
- ******************************************************************************/
-acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- struct acpi_signal_fatal_info *fatal;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- switch (walk_state->opcode) {
- case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
- (u32) operand[0]->integer.value,
- (u32) operand[1]->integer.value,
- (u32) operand[2]->integer.value));
-
- fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info));
- if (fatal) {
- fatal->type = (u32) operand[0]->integer.value;
- fatal->code = (u32) operand[1]->integer.value;
- fatal->argument = (u32) operand[2]->integer.value;
- }
-
- /* Always signal the OS! */
-
- status = acpi_os_signal(ACPI_SIGNAL_FATAL, fatal);
-
- /* Might return while OS is shutting down, just continue */
-
- ACPI_FREE(fatal);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- cleanup:
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_3A_1T_1R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute Triadic operator (3 operands)
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc = NULL;
- char *buffer = NULL;
- acpi_status status = AE_OK;
- acpi_integer index;
- acpi_size length;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- switch (walk_state->opcode) {
- case AML_MID_OP: /* Mid (Source[0], Index[1], Length[2], Result[3]) */
-
- /*
- * Create the return object. The Source operand is guaranteed to be
- * either a String or a Buffer, so just use its type.
- */
- return_desc =
- acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE
- (operand[0]));
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Get the Integer values from the objects */
-
- index = operand[1]->integer.value;
- length = (acpi_size) operand[2]->integer.value;
-
- /*
- * If the index is beyond the length of the String/Buffer, or if the
- * requested length is zero, return a zero-length String/Buffer
- */
- if (index >= operand[0]->string.length) {
- length = 0;
- }
-
- /* Truncate request if larger than the actual String/Buffer */
-
- else if ((index + length) > operand[0]->string.length) {
- length = (acpi_size) operand[0]->string.length -
- (acpi_size) index;
- }
-
- /* Strings always have a sub-pointer, not so for buffers */
-
- switch (ACPI_GET_OBJECT_TYPE(operand[0])) {
- case ACPI_TYPE_STRING:
-
- /* Always allocate a new buffer for the String */
-
- buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1);
- if (!buffer) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- /* If the requested length is zero, don't allocate a buffer */
-
- if (length > 0) {
-
- /* Allocate a new buffer for the Buffer */
-
- buffer = ACPI_ALLOCATE_ZEROED(length);
- if (!buffer) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
- }
- break;
-
- default: /* Should not happen */
-
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
-
- if (buffer) {
-
- /* We have a buffer, copy the portion requested */
-
- ACPI_MEMCPY(buffer, operand[0]->string.pointer + index,
- length);
- }
-
- /* Set the length of the new String/Buffer */
-
- return_desc->string.pointer = buffer;
- return_desc->string.length = (u32) length;
-
- /* Mark buffer initialized */
-
- return_desc->buffer.flags |= AOPOBJ_DATA_VALID;
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- /* Store the result in the target */
-
- status = acpi_ex_store(return_desc, operand[3], walk_state);
-
- cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE(status) || walk_state->result_obj) {
- acpi_ut_remove_reference(return_desc);
- walk_state->result_obj = NULL;
- }
-
- /* Set the return object and exit */
-
- else {
- walk_state->result_obj = return_desc;
- }
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exoparg6 - AML execution - opcodes with 6 arguments
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exoparg6")
-
-/*!
- * Naming convention for AML interpreter execution routines.
- *
- * The routines that begin execution of AML opcodes are named with a common
- * convention based upon the number of arguments, the number of target operands,
- * and whether or not a value is returned:
- *
- * AcpiExOpcode_xA_yT_zR
- *
- * Where:
- *
- * xA - ARGUMENTS: The number of arguments (input operands) that are
- * required for this opcode type (1 through 6 args).
- * yT - TARGETS: The number of targets (output operands) that are required
- * for this opcode type (0, 1, or 2 targets).
- * zR - RETURN VALUE: Indicates whether this opcode type returns a value
- * as the function return (0 or 1).
- *
- * The AcpiExOpcode* functions are called via the Dispatcher component with
- * fully resolved operands.
-!*/
-/* Local prototypes */
-static u8
-acpi_ex_do_match(u32 match_op,
- union acpi_operand_object *package_obj,
- union acpi_operand_object *match_obj);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_do_match
- *
- * PARAMETERS: match_op - The AML match operand
- * package_obj - Object from the target package
- * match_obj - Object to be matched
- *
- * RETURN: TRUE if the match is successful, FALSE otherwise
- *
- * DESCRIPTION: Implements the low-level match for the ASL Match operator.
- * Package elements will be implicitly converted to the type of
- * the match object (Integer/Buffer/String).
- *
- ******************************************************************************/
-
-static u8
-acpi_ex_do_match(u32 match_op,
- union acpi_operand_object *package_obj,
- union acpi_operand_object *match_obj)
-{
- u8 logical_result = TRUE;
- acpi_status status;
-
- /*
- * Note: Since the package_obj/match_obj ordering is opposite to that of
- * the standard logical operators, we have to reverse them when we call
- * do_logical_op in order to make the implicit conversion rules work
- * correctly. However, this means we have to flip the entire equation
- * also. A bit ugly perhaps, but overall, better than fussing the
- * parameters around at runtime, over and over again.
- *
- * Below, P[i] refers to the package element, M refers to the Match object.
- */
- switch (match_op) {
- case MATCH_MTR:
-
- /* Always true */
-
- break;
-
- case MATCH_MEQ:
-
- /*
- * True if equal: (P[i] == M)
- * Change to: (M == P[i])
- */
- status =
- acpi_ex_do_logical_op(AML_LEQUAL_OP, match_obj, package_obj,
- &logical_result);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
- break;
-
- case MATCH_MLE:
-
- /*
- * True if less than or equal: (P[i] <= M) (P[i] not_greater than M)
- * Change to: (M >= P[i]) (M not_less than P[i])
- */
- status =
- acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj,
- &logical_result);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
- logical_result = (u8) ! logical_result;
- break;
-
- case MATCH_MLT:
-
- /*
- * True if less than: (P[i] < M)
- * Change to: (M > P[i])
- */
- status =
- acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj,
- package_obj, &logical_result);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
- break;
-
- case MATCH_MGE:
-
- /*
- * True if greater than or equal: (P[i] >= M) (P[i] not_less than M)
- * Change to: (M <= P[i]) (M not_greater than P[i])
- */
- status =
- acpi_ex_do_logical_op(AML_LGREATER_OP, match_obj,
- package_obj, &logical_result);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
- logical_result = (u8) ! logical_result;
- break;
-
- case MATCH_MGT:
-
- /*
- * True if greater than: (P[i] > M)
- * Change to: (M < P[i])
- */
- status =
- acpi_ex_do_logical_op(AML_LLESS_OP, match_obj, package_obj,
- &logical_result);
- if (ACPI_FAILURE(status)) {
- return (FALSE);
- }
- break;
-
- default:
-
- /* Undefined */
-
- return (FALSE);
- }
-
- return logical_result;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_opcode_6A_0T_1R
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute opcode with 6 arguments, no target, and a return value
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
-{
- union acpi_operand_object **operand = &walk_state->operands[0];
- union acpi_operand_object *return_desc = NULL;
- acpi_status status = AE_OK;
- acpi_integer index;
- union acpi_operand_object *this_element;
-
- ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R,
- acpi_ps_get_opcode_name(walk_state->opcode));
-
- switch (walk_state->opcode) {
- case AML_MATCH_OP:
- /*
- * Match (search_pkg[0], match_op1[1], match_obj1[2],
- * match_op2[3], match_obj2[4], start_index[5])
- */
-
- /* Validate both Match Term Operators (MTR, MEQ, etc.) */
-
- if ((operand[1]->integer.value > MAX_MATCH_OPERATOR) ||
- (operand[3]->integer.value > MAX_MATCH_OPERATOR)) {
- ACPI_ERROR((AE_INFO, "Match operator out of range"));
- status = AE_AML_OPERAND_VALUE;
- goto cleanup;
- }
-
- /* Get the package start_index, validate against the package length */
-
- index = operand[5]->integer.value;
- if (index >= operand[0]->package.count) {
- ACPI_ERROR((AE_INFO,
- "Index (%X%8.8X) beyond package end (%X)",
- ACPI_FORMAT_UINT64(index),
- operand[0]->package.count));
- status = AE_AML_PACKAGE_LIMIT;
- goto cleanup;
- }
-
- /* Create an integer for the return value */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- status = AE_NO_MEMORY;
- goto cleanup;
-
- }
-
- /* Default return value if no match found */
-
- return_desc->integer.value = ACPI_INTEGER_MAX;
-
- /*
- * Examine each element until a match is found. Both match conditions
- * must be satisfied for a match to occur. Within the loop,
- * "continue" signifies that the current element does not match
- * and the next should be examined.
- *
- * Upon finding a match, the loop will terminate via "break" at
- * the bottom. If it terminates "normally", match_value will be
- * ACPI_INTEGER_MAX (Ones) (its initial value) indicating that no
- * match was found.
- */
- for (; index < operand[0]->package.count; index++) {
-
- /* Get the current package element */
-
- this_element = operand[0]->package.elements[index];
-
- /* Treat any uninitialized (NULL) elements as non-matching */
-
- if (!this_element) {
- continue;
- }
-
- /*
- * Both match conditions must be satisfied. Execution of a continue
- * (proceed to next iteration of enclosing for loop) signifies a
- * non-match.
- */
- if (!acpi_ex_do_match((u32) operand[1]->integer.value,
- this_element, operand[2])) {
- continue;
- }
-
- if (!acpi_ex_do_match((u32) operand[3]->integer.value,
- this_element, operand[4])) {
- continue;
- }
-
- /* Match found: Index is the return value */
-
- return_desc->integer.value = index;
- break;
- }
- break;
-
- case AML_LOAD_TABLE_OP:
-
- status = acpi_ex_load_table_op(walk_state, &return_desc);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X",
- walk_state->opcode));
- status = AE_AML_BAD_OPCODE;
- goto cleanup;
- }
-
- cleanup:
-
- /* Delete return object on error */
-
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(return_desc);
- }
-
- /* Save return object on success */
-
- else {
- walk_state->result_obj = return_desc;
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exprep - ACPI AML (p-code) execution - field prep utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exprep")
-
-/* Local prototypes */
-static u32
-acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
- u8 field_flags, u32 * return_byte_alignment);
-
-#ifdef ACPI_UNDER_DEVELOPMENT
-
-static u32
-acpi_ex_generate_access(u32 field_bit_offset,
- u32 field_bit_length, u32 region_length);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_generate_access
- *
- * PARAMETERS: field_bit_offset - Start of field within parent region/buffer
- * field_bit_length - Length of field in bits
- * region_length - Length of parent in bytes
- *
- * RETURN: Field granularity (8, 16, 32 or 64) and
- * byte_alignment (1, 2, 3, or 4)
- *
- * DESCRIPTION: Generate an optimal access width for fields defined with the
- * any_acc keyword.
- *
- * NOTE: Need to have the region_length in order to check for boundary
- * conditions (end-of-region). However, the region_length is a deferred
- * operation. Therefore, to complete this implementation, the generation
- * of this access width must be deferred until the region length has
- * been evaluated.
- *
- ******************************************************************************/
-
-static u32
-acpi_ex_generate_access(u32 field_bit_offset,
- u32 field_bit_length, u32 region_length)
-{
- u32 field_byte_length;
- u32 field_byte_offset;
- u32 field_byte_end_offset;
- u32 access_byte_width;
- u32 field_start_offset;
- u32 field_end_offset;
- u32 minimum_access_width = 0xFFFFFFFF;
- u32 minimum_accesses = 0xFFFFFFFF;
- u32 accesses;
-
- ACPI_FUNCTION_TRACE(ex_generate_access);
-
- /* Round Field start offset and length to "minimal" byte boundaries */
-
- field_byte_offset = ACPI_DIV_8(ACPI_ROUND_DOWN(field_bit_offset, 8));
- field_byte_end_offset = ACPI_DIV_8(ACPI_ROUND_UP(field_bit_length +
- field_bit_offset, 8));
- field_byte_length = field_byte_end_offset - field_byte_offset;
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Bit length %d, Bit offset %d\n",
- field_bit_length, field_bit_offset));
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Byte Length %d, Byte Offset %d, End Offset %d\n",
- field_byte_length, field_byte_offset,
- field_byte_end_offset));
-
- /*
- * Iterative search for the maximum access width that is both aligned
- * and does not go beyond the end of the region
- *
- * Start at byte_acc and work upwards to qword_acc max. (1,2,4,8 bytes)
- */
- for (access_byte_width = 1; access_byte_width <= 8;
- access_byte_width <<= 1) {
- /*
- * 1) Round end offset up to next access boundary and make sure that
- * this does not go beyond the end of the parent region.
- * 2) When the Access width is greater than the field_byte_length, we
- * are done. (This does not optimize for the perfectly aligned
- * case yet).
- */
- if (ACPI_ROUND_UP(field_byte_end_offset, access_byte_width) <=
- region_length) {
- field_start_offset =
- ACPI_ROUND_DOWN(field_byte_offset,
- access_byte_width) /
- access_byte_width;
-
- field_end_offset =
- ACPI_ROUND_UP((field_byte_length +
- field_byte_offset),
- access_byte_width) /
- access_byte_width;
-
- accesses = field_end_offset - field_start_offset;
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "AccessWidth %d end is within region\n",
- access_byte_width));
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Field Start %d, Field End %d -- requires %d accesses\n",
- field_start_offset, field_end_offset,
- accesses));
-
- /* Single access is optimal */
-
- if (accesses <= 1) {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Entire field can be accessed with one operation of size %d\n",
- access_byte_width));
- return_VALUE(access_byte_width);
- }
-
- /*
- * Fits in the region, but requires more than one read/write.
- * try the next wider access on next iteration
- */
- if (accesses < minimum_accesses) {
- minimum_accesses = accesses;
- minimum_access_width = access_byte_width;
- }
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "AccessWidth %d end is NOT within region\n",
- access_byte_width));
- if (access_byte_width == 1) {
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Field goes beyond end-of-region!\n"));
-
- /* Field does not fit in the region at all */
-
- return_VALUE(0);
- }
-
- /*
- * This width goes beyond the end-of-region, back off to
- * previous access
- */
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Backing off to previous optimal access width of %d\n",
- minimum_access_width));
- return_VALUE(minimum_access_width);
- }
- }
-
- /*
- * Could not read/write field with one operation,
- * just use max access width
- */
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Cannot access field in one operation, using width 8\n"));
- return_VALUE(8);
-}
-#endif /* ACPI_UNDER_DEVELOPMENT */
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_decode_field_access
- *
- * PARAMETERS: obj_desc - Field object
- * field_flags - Encoded fieldflags (contains access bits)
- * return_byte_alignment - Where the byte alignment is returned
- *
- * RETURN: Field granularity (8, 16, 32 or 64) and
- * byte_alignment (1, 2, 3, or 4)
- *
- * DESCRIPTION: Decode the access_type bits of a field definition.
- *
- ******************************************************************************/
-
-static u32
-acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
- u8 field_flags, u32 * return_byte_alignment)
-{
- u32 access;
- u32 byte_alignment;
- u32 bit_length;
-
- ACPI_FUNCTION_TRACE(ex_decode_field_access);
-
- access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK);
-
- switch (access) {
- case AML_FIELD_ACCESS_ANY:
-
-#ifdef ACPI_UNDER_DEVELOPMENT
- byte_alignment =
- acpi_ex_generate_access(obj_desc->common_field.
- start_field_bit_offset,
- obj_desc->common_field.bit_length,
- 0xFFFFFFFF
- /* Temp until we pass region_length as parameter */
- );
- bit_length = byte_alignment * 8;
-#endif
-
- byte_alignment = 1;
- bit_length = 8;
- break;
-
- case AML_FIELD_ACCESS_BYTE:
- case AML_FIELD_ACCESS_BUFFER: /* ACPI 2.0 (SMBus Buffer) */
- byte_alignment = 1;
- bit_length = 8;
- break;
-
- case AML_FIELD_ACCESS_WORD:
- byte_alignment = 2;
- bit_length = 16;
- break;
-
- case AML_FIELD_ACCESS_DWORD:
- byte_alignment = 4;
- bit_length = 32;
- break;
-
- case AML_FIELD_ACCESS_QWORD: /* ACPI 2.0 */
- byte_alignment = 8;
- bit_length = 64;
- break;
-
- default:
- /* Invalid field access type */
-
- ACPI_ERROR((AE_INFO, "Unknown field access type %X", access));
- return_UINT32(0);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
- /*
- * buffer_field access can be on any byte boundary, so the
- * byte_alignment is always 1 byte -- regardless of any byte_alignment
- * implied by the field access type.
- */
- byte_alignment = 1;
- }
-
- *return_byte_alignment = byte_alignment;
- return_UINT32(bit_length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_prep_common_field_object
- *
- * PARAMETERS: obj_desc - The field object
- * field_flags - Access, lock_rule, and update_rule.
- * The format of a field_flag is described
- * in the ACPI specification
- * field_attribute - Special attributes (not used)
- * field_bit_position - Field start position
- * field_bit_length - Field length in number of bits
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize the areas of the field object that are common
- * to the various types of fields. Note: This is very "sensitive"
- * code because we are solving the general case for field
- * alignment.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
- u8 field_flags,
- u8 field_attribute,
- u32 field_bit_position, u32 field_bit_length)
-{
- u32 access_bit_width;
- u32 byte_alignment;
- u32 nearest_byte_address;
-
- ACPI_FUNCTION_TRACE(ex_prep_common_field_object);
-
- /*
- * Note: the structure being initialized is the
- * ACPI_COMMON_FIELD_INFO; No structure fields outside of the common
- * area are initialized by this procedure.
- */
- obj_desc->common_field.field_flags = field_flags;
- obj_desc->common_field.attribute = field_attribute;
- obj_desc->common_field.bit_length = field_bit_length;
-
- /*
- * Decode the access type so we can compute offsets. The access type gives
- * two pieces of information - the width of each field access and the
- * necessary byte_alignment (address granularity) of the access.
- *
- * For any_acc, the access_bit_width is the largest width that is both
- * necessary and possible in an attempt to access the whole field in one
- * I/O operation. However, for any_acc, the byte_alignment is always one
- * byte.
- *
- * For all Buffer Fields, the byte_alignment is always one byte.
- *
- * For all other access types (Byte, Word, Dword, Qword), the Bitwidth is
- * the same (equivalent) as the byte_alignment.
- */
- access_bit_width = acpi_ex_decode_field_access(obj_desc, field_flags,
- &byte_alignment);
- if (!access_bit_width) {
- return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
- }
-
- /* Setup width (access granularity) fields */
-
- obj_desc->common_field.access_byte_width = (u8)
- ACPI_DIV_8(access_bit_width); /* 1, 2, 4, 8 */
-
- obj_desc->common_field.access_bit_width = (u8) access_bit_width;
-
- /*
- * base_byte_offset is the address of the start of the field within the
- * region. It is the byte address of the first *datum* (field-width data
- * unit) of the field. (i.e., the first datum that contains at least the
- * first *bit* of the field.)
- *
- * Note: byte_alignment is always either equal to the access_bit_width or 8
- * (Byte access), and it defines the addressing granularity of the parent
- * region or buffer.
- */
- nearest_byte_address =
- ACPI_ROUND_BITS_DOWN_TO_BYTES(field_bit_position);
- obj_desc->common_field.base_byte_offset = (u32)
- ACPI_ROUND_DOWN(nearest_byte_address, byte_alignment);
-
- /*
- * start_field_bit_offset is the offset of the first bit of the field within
- * a field datum.
- */
- obj_desc->common_field.start_field_bit_offset = (u8)
- (field_bit_position -
- ACPI_MUL_8(obj_desc->common_field.base_byte_offset));
-
- /*
- * Does the entire field fit within a single field access element? (datum)
- * (i.e., without crossing a datum boundary)
- */
- if ((obj_desc->common_field.start_field_bit_offset +
- field_bit_length) <= (u16) access_bit_width) {
- obj_desc->common.flags |= AOPOBJ_SINGLE_DATUM;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_prep_field_value
- *
- * PARAMETERS: Info - Contains all field creation info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Construct an union acpi_operand_object of type def_field and
- * connect it to the parent Node.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *second_desc = NULL;
- u32 type;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_prep_field_value);
-
- /* Parameter validation */
-
- if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) {
- if (!info->region_node) {
- ACPI_ERROR((AE_INFO, "Null RegionNode"));
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- type = acpi_ns_get_type(info->region_node);
- if (type != ACPI_TYPE_REGION) {
- ACPI_ERROR((AE_INFO,
- "Needed Region, found type %X (%s)",
- type, acpi_ut_get_type_name(type)));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- }
-
- /* Allocate a new field object */
-
- obj_desc = acpi_ut_create_internal_object(info->field_type);
- if (!obj_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Initialize areas of the object that are common to all fields */
-
- obj_desc->common_field.node = info->field_node;
- status = acpi_ex_prep_common_field_object(obj_desc, info->field_flags,
- info->attribute,
- info->field_bit_position,
- info->field_bit_length);
- if (ACPI_FAILURE(status)) {
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(status);
- }
-
- /* Initialize areas of the object that are specific to the field type */
-
- switch (info->field_type) {
- case ACPI_TYPE_LOCAL_REGION_FIELD:
-
- obj_desc->field.region_obj =
- acpi_ns_get_attached_object(info->region_node);
-
- /* An additional reference for the container */
-
- acpi_ut_add_reference(obj_desc->field.region_obj);
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n",
- obj_desc->field.start_field_bit_offset,
- obj_desc->field.base_byte_offset,
- obj_desc->field.access_byte_width,
- obj_desc->field.region_obj));
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- obj_desc->bank_field.value = info->bank_value;
- obj_desc->bank_field.region_obj =
- acpi_ns_get_attached_object(info->region_node);
- obj_desc->bank_field.bank_obj =
- acpi_ns_get_attached_object(info->register_node);
-
- /* An additional reference for the attached objects */
-
- acpi_ut_add_reference(obj_desc->bank_field.region_obj);
- acpi_ut_add_reference(obj_desc->bank_field.bank_obj);
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n",
- obj_desc->bank_field.start_field_bit_offset,
- obj_desc->bank_field.base_byte_offset,
- obj_desc->field.access_byte_width,
- obj_desc->bank_field.region_obj,
- obj_desc->bank_field.bank_obj));
-
- /*
- * Remember location in AML stream of the field unit
- * opcode and operands -- since the bank_value
- * operands must be evaluated.
- */
- second_desc = obj_desc->common.next_object;
- second_desc->extra.aml_start =
- ACPI_CAST_PTR(union acpi_parse_object,
- info->data_register_node)->named.data;
- second_desc->extra.aml_length =
- ACPI_CAST_PTR(union acpi_parse_object,
- info->data_register_node)->named.length;
-
- break;
-
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- /* Get the Index and Data registers */
-
- obj_desc->index_field.index_obj =
- acpi_ns_get_attached_object(info->register_node);
- obj_desc->index_field.data_obj =
- acpi_ns_get_attached_object(info->data_register_node);
-
- if (!obj_desc->index_field.data_obj
- || !obj_desc->index_field.index_obj) {
- ACPI_ERROR((AE_INFO,
- "Null Index Object during field prep"));
- acpi_ut_delete_object_desc(obj_desc);
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /* An additional reference for the attached objects */
-
- acpi_ut_add_reference(obj_desc->index_field.data_obj);
- acpi_ut_add_reference(obj_desc->index_field.index_obj);
-
- /*
- * April 2006: Changed to match MS behavior
- *
- * The value written to the Index register is the byte offset of the
- * target field in units of the granularity of the index_field
- *
- * Previously, the value was calculated as an index in terms of the
- * width of the Data register, as below:
- *
- * obj_desc->index_field.Value = (u32)
- * (Info->field_bit_position / ACPI_MUL_8 (
- * obj_desc->Field.access_byte_width));
- *
- * February 2006: Tried value as a byte offset:
- * obj_desc->index_field.Value = (u32)
- * ACPI_DIV_8 (Info->field_bit_position);
- */
- obj_desc->index_field.value =
- (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position),
- obj_desc->index_field.
- access_byte_width);
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n",
- obj_desc->index_field.start_field_bit_offset,
- obj_desc->index_field.base_byte_offset,
- obj_desc->index_field.value,
- obj_desc->field.access_byte_width,
- obj_desc->index_field.index_obj,
- obj_desc->index_field.data_obj));
- break;
-
- default:
- /* No other types should get here */
- break;
- }
-
- /*
- * Store the constructed descriptor (obj_desc) into the parent Node,
- * preserving the current type of that named_obj.
- */
- status = acpi_ns_attach_object(info->field_node, obj_desc,
- acpi_ns_get_type(info->field_node));
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "Set NamedObj %p [%4.4s], ObjDesc %p\n",
- info->field_node,
- acpi_ut_get_node_name(info->field_node), obj_desc));
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exregion - ACPI default op_region (address space) handlers
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exregion")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_memory_space_handler
- *
- * PARAMETERS: Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, or 32)
- * Value - Pointer to in or out value
- * handler_context - Pointer to Handler's context
- * region_context - Pointer to context specific to the
- * accessed region
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handler for the System Memory address space (Op Region)
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_system_memory_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
- void *handler_context, void *region_context)
-{
- acpi_status status = AE_OK;
- void *logical_addr_ptr = NULL;
- struct acpi_mem_space_context *mem_info = region_context;
- u32 length;
- acpi_size window_size;
-#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
- u32 remainder;
-#endif
-
- ACPI_FUNCTION_TRACE(ex_system_memory_space_handler);
-
- /* Validate and translate the bit width */
-
- switch (bit_width) {
- case 8:
- length = 1;
- break;
-
- case 16:
- length = 2;
- break;
-
- case 32:
- length = 4;
- break;
-
- case 64:
- length = 8;
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d",
- bit_width));
- return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
- }
-
-#ifdef ACPI_MISALIGNMENT_NOT_SUPPORTED
- /*
- * Hardware does not support non-aligned data transfers, we must verify
- * the request.
- */
- (void)acpi_ut_short_divide((acpi_integer) address, length, NULL,
- &remainder);
- if (remainder != 0) {
- return_ACPI_STATUS(AE_AML_ALIGNMENT);
- }
-#endif
-
- /*
- * Does the request fit into the cached memory mapping?
- * Is 1) Address below the current mapping? OR
- * 2) Address beyond the current mapping?
- */
- if ((address < mem_info->mapped_physical_address) ||
- (((acpi_integer) address + length) > ((acpi_integer)
- mem_info->
- mapped_physical_address +
- mem_info->mapped_length))) {
- /*
- * The request cannot be resolved by the current memory mapping;
- * Delete the existing mapping and create a new one.
- */
- if (mem_info->mapped_length) {
-
- /* Valid mapping, delete it */
-
- acpi_os_unmap_memory(mem_info->mapped_logical_address,
- mem_info->mapped_length);
- }
-
- /*
- * Don't attempt to map memory beyond the end of the region, and
- * constrain the maximum mapping size to something reasonable.
- */
- window_size = (acpi_size)
- ((mem_info->address + mem_info->length) - address);
-
- if (window_size > ACPI_SYSMEM_REGION_WINDOW_SIZE) {
- window_size = ACPI_SYSMEM_REGION_WINDOW_SIZE;
- }
-
- /* Create a new mapping starting at the address given */
-
- mem_info->mapped_logical_address =
- acpi_os_map_memory((acpi_physical_address) address, window_size);
- if (!mem_info->mapped_logical_address) {
- ACPI_ERROR((AE_INFO,
- "Could not map memory at %8.8X%8.8X, size %X",
- ACPI_FORMAT_NATIVE_UINT(address),
- (u32) window_size));
- mem_info->mapped_length = 0;
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Save the physical address and mapping size */
-
- mem_info->mapped_physical_address = address;
- mem_info->mapped_length = window_size;
- }
-
- /*
- * Generate a logical pointer corresponding to the address we want to
- * access
- */
- logical_addr_ptr = mem_info->mapped_logical_address +
- ((acpi_integer) address -
- (acpi_integer) mem_info->mapped_physical_address);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n",
- bit_width, function,
- ACPI_FORMAT_NATIVE_UINT(address)));
-
- /*
- * Perform the memory read or write
- *
- * Note: For machines that do not support non-aligned transfers, the target
- * address was checked for alignment above. We do not attempt to break the
- * transfer up into smaller (byte-size) chunks because the AML specifically
- * asked for a transfer width that the hardware may require.
- */
- switch (function) {
- case ACPI_READ:
-
- *value = 0;
- switch (bit_width) {
- case 8:
- *value = (acpi_integer) ACPI_GET8(logical_addr_ptr);
- break;
-
- case 16:
- *value = (acpi_integer) ACPI_GET16(logical_addr_ptr);
- break;
-
- case 32:
- *value = (acpi_integer) ACPI_GET32(logical_addr_ptr);
- break;
-
- case 64:
- *value = (acpi_integer) ACPI_GET64(logical_addr_ptr);
- break;
-
- default:
- /* bit_width was already validated */
- break;
- }
- break;
-
- case ACPI_WRITE:
-
- switch (bit_width) {
- case 8:
- ACPI_SET8(logical_addr_ptr) = (u8) * value;
- break;
-
- case 16:
- ACPI_SET16(logical_addr_ptr) = (u16) * value;
- break;
-
- case 32:
- ACPI_SET32(logical_addr_ptr) = (u32) * value;
- break;
-
- case 64:
- ACPI_SET64(logical_addr_ptr) = (u64) * value;
- break;
-
- default:
- /* bit_width was already validated */
- break;
- }
- break;
-
- default:
- status = AE_BAD_PARAMETER;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_io_space_handler
- *
- * PARAMETERS: Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, or 32)
- * Value - Pointer to in or out value
- * handler_context - Pointer to Handler's context
- * region_context - Pointer to context specific to the
- * accessed region
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handler for the System IO address space (Op Region)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_system_io_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
- void *handler_context, void *region_context)
-{
- acpi_status status = AE_OK;
- u32 value32;
-
- ACPI_FUNCTION_TRACE(ex_system_io_space_handler);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n",
- bit_width, function,
- ACPI_FORMAT_NATIVE_UINT(address)));
-
- /* Decode the function parameter */
-
- switch (function) {
- case ACPI_READ:
-
- status = acpi_os_read_port((acpi_io_address) address,
- &value32, bit_width);
- *value = value32;
- break;
-
- case ACPI_WRITE:
-
- status = acpi_os_write_port((acpi_io_address) address,
- (u32) * value, bit_width);
- break;
-
- default:
- status = AE_BAD_PARAMETER;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_pci_config_space_handler
- *
- * PARAMETERS: Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, or 32)
- * Value - Pointer to in or out value
- * handler_context - Pointer to Handler's context
- * region_context - Pointer to context specific to the
- * accessed region
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handler for the PCI Config address space (Op Region)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_pci_config_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
- void *handler_context, void *region_context)
-{
- acpi_status status = AE_OK;
- struct acpi_pci_id *pci_id;
- u16 pci_register;
- u32 value32;
-
- ACPI_FUNCTION_TRACE(ex_pci_config_space_handler);
-
- /*
- * The arguments to acpi_os(Read|Write)pci_configuration are:
- *
- * pci_segment is the PCI bus segment range 0-31
- * pci_bus is the PCI bus number range 0-255
- * pci_device is the PCI device number range 0-31
- * pci_function is the PCI device function number
- * pci_register is the Config space register range 0-255 bytes
- *
- * Value - input value for write, output address for read
- *
- */
- pci_id = (struct acpi_pci_id *)region_context;
- pci_register = (u16) (u32) address;
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n",
- function, bit_width, pci_id->segment, pci_id->bus,
- pci_id->device, pci_id->function, pci_register));
-
- switch (function) {
- case ACPI_READ:
-
- status = acpi_os_read_pci_configuration(pci_id, pci_register,
- &value32, bit_width);
- *value = value32;
- break;
-
- case ACPI_WRITE:
-
- status = acpi_os_write_pci_configuration(pci_id, pci_register,
- *value, bit_width);
- break;
-
- default:
-
- status = AE_BAD_PARAMETER;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_cmos_space_handler
- *
- * PARAMETERS: Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, or 32)
- * Value - Pointer to in or out value
- * handler_context - Pointer to Handler's context
- * region_context - Pointer to context specific to the
- * accessed region
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handler for the CMOS address space (Op Region)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_cmos_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
- void *handler_context, void *region_context)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_cmos_space_handler);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_pci_bar_space_handler
- *
- * PARAMETERS: Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, or 32)
- * Value - Pointer to in or out value
- * handler_context - Pointer to Handler's context
- * region_context - Pointer to context specific to the
- * accessed region
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handler for the PCI bar_target address space (Op Region)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_pci_bar_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
- void *handler_context, void *region_context)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_data_table_space_handler
- *
- * PARAMETERS: Function - Read or Write operation
- * Address - Where in the space to read or write
- * bit_width - Field width in bits (8, 16, or 32)
- * Value - Pointer to in or out value
- * handler_context - Pointer to Handler's context
- * region_context - Pointer to context specific to the
- * accessed region
- *
- * RETURN: Status
- *
- * DESCRIPTION: Handler for the Data Table address space (Op Region)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_data_table_space_handler(u32 function,
- acpi_physical_address address,
- u32 bit_width,
- acpi_integer * value,
- void *handler_context, void *region_context)
-{
- ACPI_FUNCTION_TRACE(ex_data_table_space_handler);
-
- /* Perform the memory read or write */
-
- switch (function) {
- case ACPI_READ:
-
- ACPI_MEMCPY(ACPI_CAST_PTR(char, value),
- ACPI_PHYSADDR_TO_PTR(address),
- ACPI_DIV_8(bit_width));
- break;
-
- case ACPI_WRITE:
- default:
-
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exresnte - AML Interpreter object resolution
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exresnte")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_resolve_node_to_value
- *
- * PARAMETERS: object_ptr - Pointer to a location that contains
- * a pointer to a NS node, and will receive a
- * pointer to the resolved object.
- * walk_state - Current state. Valid only if executing AML
- * code. NULL if simply resolving an object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Resolve a Namespace node to a valued object
- *
- * Note: for some of the data types, the pointer attached to the Node
- * can be either a pointer to an actual internal object or a pointer into the
- * AML stream itself. These types are currently:
- *
- * ACPI_TYPE_INTEGER
- * ACPI_TYPE_STRING
- * ACPI_TYPE_BUFFER
- * ACPI_TYPE_MUTEX
- * ACPI_TYPE_PACKAGE
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *source_desc;
- union acpi_operand_object *obj_desc = NULL;
- struct acpi_namespace_node *node;
- acpi_object_type entry_type;
-
- ACPI_FUNCTION_TRACE(ex_resolve_node_to_value);
-
- /*
- * The stack pointer points to a struct acpi_namespace_node (Node). Get the
- * object that is attached to the Node.
- */
- node = *object_ptr;
- source_desc = acpi_ns_get_attached_object(node);
- entry_type = acpi_ns_get_type((acpi_handle) node);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n",
- node, source_desc,
- acpi_ut_get_type_name(entry_type)));
-
- if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) ||
- (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) {
-
- /* There is always exactly one level of indirection */
-
- node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object);
- source_desc = acpi_ns_get_attached_object(node);
- entry_type = acpi_ns_get_type((acpi_handle) node);
- *object_ptr = node;
- }
-
- /*
- * Several object types require no further processing:
- * 1) Device/Thermal objects don't have a "real" subobject, return the Node
- * 2) Method locals and arguments have a pseudo-Node
- * 3) 10/2007: Added method type to assist with Package construction.
- */
- if ((entry_type == ACPI_TYPE_DEVICE) ||
- (entry_type == ACPI_TYPE_THERMAL) ||
- (entry_type == ACPI_TYPE_METHOD) ||
- (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) {
- return_ACPI_STATUS(AE_OK);
- }
-
- if (!source_desc) {
- ACPI_ERROR((AE_INFO, "No object attached to node %p", node));
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- /*
- * Action is based on the type of the Node, which indicates the type
- * of the attached object or pointer
- */
- switch (entry_type) {
- case ACPI_TYPE_PACKAGE:
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_PACKAGE) {
- ACPI_ERROR((AE_INFO, "Object not a Package, type %s",
- acpi_ut_get_object_type_name(source_desc)));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- status = acpi_ds_get_package_arguments(source_desc);
- if (ACPI_SUCCESS(status)) {
-
- /* Return an additional reference to the object */
-
- obj_desc = source_desc;
- acpi_ut_add_reference(obj_desc);
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) {
- ACPI_ERROR((AE_INFO, "Object not a Buffer, type %s",
- acpi_ut_get_object_type_name(source_desc)));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- status = acpi_ds_get_buffer_arguments(source_desc);
- if (ACPI_SUCCESS(status)) {
-
- /* Return an additional reference to the object */
-
- obj_desc = source_desc;
- acpi_ut_add_reference(obj_desc);
- }
- break;
-
- case ACPI_TYPE_STRING:
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) {
- ACPI_ERROR((AE_INFO, "Object not a String, type %s",
- acpi_ut_get_object_type_name(source_desc)));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* Return an additional reference to the object */
-
- obj_desc = source_desc;
- acpi_ut_add_reference(obj_desc);
- break;
-
- case ACPI_TYPE_INTEGER:
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) {
- ACPI_ERROR((AE_INFO, "Object not a Integer, type %s",
- acpi_ut_get_object_type_name(source_desc)));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* Return an additional reference to the object */
-
- obj_desc = source_desc;
- acpi_ut_add_reference(obj_desc);
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "FieldRead Node=%p SourceDesc=%p Type=%X\n",
- node, source_desc, entry_type));
-
- status =
- acpi_ex_read_data_from_field(walk_state, source_desc,
- &obj_desc);
- break;
-
- /* For these objects, just return the object attached to the Node */
-
- case ACPI_TYPE_MUTEX:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_EVENT:
- case ACPI_TYPE_REGION:
-
- /* Return an additional reference to the object */
-
- obj_desc = source_desc;
- acpi_ut_add_reference(obj_desc);
- break;
-
- /* TYPE_ANY is untyped, and thus there is no object associated with it */
-
- case ACPI_TYPE_ANY:
-
- ACPI_ERROR((AE_INFO,
- "Untyped entry %p, no attached object!", node));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE); /* Cannot be AE_TYPE */
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- switch (source_desc->reference.class) {
- case ACPI_REFCLASS_TABLE: /* This is a ddb_handle */
- case ACPI_REFCLASS_REFOF:
- case ACPI_REFCLASS_INDEX:
-
- /* Return an additional reference to the object */
-
- obj_desc = source_desc;
- acpi_ut_add_reference(obj_desc);
- break;
-
- default:
- /* No named references are allowed here */
-
- ACPI_ERROR((AE_INFO,
- "Unsupported Reference type %X",
- source_desc->reference.class));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- break;
-
- default:
-
- /* Default case is for unknown types */
-
- ACPI_ERROR((AE_INFO,
- "Node %p - Unknown object type %X",
- node, entry_type));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
-
- } /* switch (entry_type) */
-
- /* Return the object descriptor */
-
- *object_ptr = (void *)obj_desc;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exresolv - AML Interpreter object resolution
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlcode.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exresolv")
-
-/* Local prototypes */
-static acpi_status
-acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
- struct acpi_walk_state *walk_state);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_resolve_to_value
- *
- * PARAMETERS: **stack_ptr - Points to entry on obj_stack, which can
- * be either an (union acpi_operand_object *)
- * or an acpi_handle.
- * walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert Reference objects to values
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr);
-
- if (!stack_ptr || !*stack_ptr) {
- ACPI_ERROR((AE_INFO, "Internal - null pointer"));
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- /*
- * The entity pointed to by the stack_ptr can be either
- * 1) A valid union acpi_operand_object, or
- * 2) A struct acpi_namespace_node (named_obj)
- */
- if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_OPERAND) {
- status = acpi_ex_resolve_object_to_value(stack_ptr, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (!*stack_ptr) {
- ACPI_ERROR((AE_INFO, "Internal - null pointer"));
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
- }
-
- /*
- * Object on the stack may have changed if acpi_ex_resolve_object_to_value()
- * was called (i.e., we can't use an _else_ here.)
- */
- if (ACPI_GET_DESCRIPTOR_TYPE(*stack_ptr) == ACPI_DESC_TYPE_NAMED) {
- status =
- acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
- (struct acpi_namespace_node,
- stack_ptr), walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Resolved object %p\n", *stack_ptr));
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_resolve_object_to_value
- *
- * PARAMETERS: stack_ptr - Pointer to an internal object
- * walk_state - Current method state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Retrieve the value from an internal object. The Reference type
- * uses the associated AML opcode to determine the value.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *stack_desc;
- union acpi_operand_object *obj_desc = NULL;
- u8 ref_type;
-
- ACPI_FUNCTION_TRACE(ex_resolve_object_to_value);
-
- stack_desc = *stack_ptr;
-
- /* This is an union acpi_operand_object */
-
- switch (ACPI_GET_OBJECT_TYPE(stack_desc)) {
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- ref_type = stack_desc->reference.class;
-
- switch (ref_type) {
- case ACPI_REFCLASS_LOCAL:
- case ACPI_REFCLASS_ARG:
-
- /*
- * Get the local from the method's state info
- * Note: this increments the local's object reference count
- */
- status = acpi_ds_method_data_get_value(ref_type,
- stack_desc->
- reference.value,
- walk_state,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Arg/Local %X] ValueObj is %p\n",
- stack_desc->reference.value,
- obj_desc));
-
- /*
- * Now we can delete the original Reference Object and
- * replace it with the resolved value
- */
- acpi_ut_remove_reference(stack_desc);
- *stack_ptr = obj_desc;
- break;
-
- case ACPI_REFCLASS_INDEX:
-
- switch (stack_desc->reference.target_type) {
- case ACPI_TYPE_BUFFER_FIELD:
-
- /* Just return - do not dereference */
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- /* If method call or copy_object - do not dereference */
-
- if ((walk_state->opcode ==
- AML_INT_METHODCALL_OP)
- || (walk_state->opcode == AML_COPY_OP)) {
- break;
- }
-
- /* Otherwise, dereference the package_index to a package element */
-
- obj_desc = *stack_desc->reference.where;
- if (obj_desc) {
- /*
- * Valid object descriptor, copy pointer to return value
- * (i.e., dereference the package index)
- * Delete the ref object, increment the returned object
- */
- acpi_ut_remove_reference(stack_desc);
- acpi_ut_add_reference(obj_desc);
- *stack_ptr = obj_desc;
- } else {
- /*
- * A NULL object descriptor means an uninitialized element of
- * the package, can't dereference it
- */
- ACPI_ERROR((AE_INFO,
- "Attempt to dereference an Index to NULL package element Idx=%p",
- stack_desc));
- status = AE_AML_UNINITIALIZED_ELEMENT;
- }
- break;
-
- default:
-
- /* Invalid reference object */
-
- ACPI_ERROR((AE_INFO,
- "Unknown TargetType %X in Index/Reference object %p",
- stack_desc->reference.target_type,
- stack_desc));
- status = AE_AML_INTERNAL;
- break;
- }
- break;
-
- case ACPI_REFCLASS_REFOF:
- case ACPI_REFCLASS_DEBUG:
- case ACPI_REFCLASS_TABLE:
-
- /* Just leave the object as-is, do not dereference */
-
- break;
-
- case ACPI_REFCLASS_NAME: /* Reference to a named object */
-
- /* Dereference the name */
-
- if ((stack_desc->reference.node->type ==
- ACPI_TYPE_DEVICE)
- || (stack_desc->reference.node->type ==
- ACPI_TYPE_THERMAL)) {
-
- /* These node types do not have 'real' subobjects */
-
- *stack_ptr = (void *)stack_desc->reference.node;
- } else {
- /* Get the object pointed to by the namespace node */
-
- *stack_ptr =
- (stack_desc->reference.node)->object;
- acpi_ut_add_reference(*stack_ptr);
- }
-
- acpi_ut_remove_reference(stack_desc);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown Reference type %X in %p", ref_type,
- stack_desc));
- status = AE_AML_INTERNAL;
- break;
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- status = acpi_ds_get_buffer_arguments(stack_desc);
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- status = acpi_ds_get_package_arguments(stack_desc);
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "FieldRead SourceDesc=%p Type=%X\n",
- stack_desc,
- ACPI_GET_OBJECT_TYPE(stack_desc)));
-
- status =
- acpi_ex_read_data_from_field(walk_state, stack_desc,
- &obj_desc);
-
- /* Remove a reference to the original operand, then override */
-
- acpi_ut_remove_reference(*stack_ptr);
- *stack_ptr = (void *)obj_desc;
- break;
-
- default:
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_resolve_multiple
- *
- * PARAMETERS: walk_state - Current state (contains AML opcode)
- * Operand - Starting point for resolution
- * return_type - Where the object type is returned
- * return_desc - Where the resolved object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Return the base object and type. Traverse a reference list if
- * necessary to get to the base object.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
- union acpi_operand_object *operand,
- acpi_object_type * return_type,
- union acpi_operand_object **return_desc)
-{
- union acpi_operand_object *obj_desc = (void *)operand;
- struct acpi_namespace_node *node;
- acpi_object_type type;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple);
-
- /* Operand can be either a namespace node or an operand descriptor */
-
- switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
- case ACPI_DESC_TYPE_OPERAND:
- type = obj_desc->common.type;
- break;
-
- case ACPI_DESC_TYPE_NAMED:
- type = ((struct acpi_namespace_node *)obj_desc)->type;
- obj_desc =
- acpi_ns_get_attached_object((struct acpi_namespace_node *)
- obj_desc);
-
- /* If we had an Alias node, use the attached object for type info */
-
- if (type == ACPI_TYPE_LOCAL_ALIAS) {
- type = ((struct acpi_namespace_node *)obj_desc)->type;
- obj_desc =
- acpi_ns_get_attached_object((struct
- acpi_namespace_node *)
- obj_desc);
- }
- break;
-
- default:
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* If type is anything other than a reference, we are done */
-
- if (type != ACPI_TYPE_LOCAL_REFERENCE) {
- goto exit;
- }
-
- /*
- * For reference objects created via the ref_of, Index, or Load/load_table
- * operators, we need to get to the base object (as per the ACPI
- * specification of the object_type and size_of operators). This means
- * traversing the list of possibly many nested references.
- */
- while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
- switch (obj_desc->reference.class) {
- case ACPI_REFCLASS_REFOF:
- case ACPI_REFCLASS_NAME:
-
- /* Dereference the reference pointer */
-
- if (obj_desc->reference.class == ACPI_REFCLASS_REFOF) {
- node = obj_desc->reference.object;
- } else { /* AML_INT_NAMEPATH_OP */
-
- node = obj_desc->reference.node;
- }
-
- /* All "References" point to a NS node */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(node) !=
- ACPI_DESC_TYPE_NAMED) {
- ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]",
- node,
- acpi_ut_get_descriptor_name(node)));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /* Get the attached object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
-
- /* No object, use the NS node type */
-
- type = acpi_ns_get_type(node);
- goto exit;
- }
-
- /* Check for circular references */
-
- if (obj_desc == operand) {
- return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE);
- }
- break;
-
- case ACPI_REFCLASS_INDEX:
-
- /* Get the type of this reference (index into another object) */
-
- type = obj_desc->reference.target_type;
- if (type != ACPI_TYPE_PACKAGE) {
- goto exit;
- }
-
- /*
- * The main object is a package, we want to get the type
- * of the individual package element that is referenced by
- * the index.
- *
- * This could of course in turn be another reference object.
- */
- obj_desc = *(obj_desc->reference.where);
- if (!obj_desc) {
-
- /* NULL package elements are allowed */
-
- type = 0; /* Uninitialized */
- goto exit;
- }
- break;
-
- case ACPI_REFCLASS_TABLE:
-
- type = ACPI_TYPE_DDB_HANDLE;
- goto exit;
-
- case ACPI_REFCLASS_LOCAL:
- case ACPI_REFCLASS_ARG:
-
- if (return_desc) {
- status =
- acpi_ds_method_data_get_value(obj_desc->
- reference.
- class,
- obj_desc->
- reference.
- value,
- walk_state,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- acpi_ut_remove_reference(obj_desc);
- } else {
- status =
- acpi_ds_method_data_get_node(obj_desc->
- reference.
- class,
- obj_desc->
- reference.
- value,
- walk_state,
- &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- type = ACPI_TYPE_ANY;
- goto exit;
- }
- }
- break;
-
- case ACPI_REFCLASS_DEBUG:
-
- /* The Debug Object is of type "DebugObject" */
-
- type = ACPI_TYPE_DEBUG_OBJECT;
- goto exit;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown Reference Class %2.2X",
- obj_desc->reference.class));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
- }
-
- /*
- * Now we are guaranteed to have an object that has not been created
- * via the ref_of or Index operators.
- */
- type = ACPI_GET_OBJECT_TYPE(obj_desc);
-
- exit:
- /* Convert internal types to external types */
-
- switch (type) {
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- type = ACPI_TYPE_FIELD_UNIT;
- break;
-
- case ACPI_TYPE_LOCAL_SCOPE:
-
- /* Per ACPI Specification, Scope is untyped */
-
- type = ACPI_TYPE_ANY;
- break;
-
- default:
- /* No change to Type required */
- break;
- }
-
- *return_type = type;
- if (return_desc) {
- *return_desc = obj_desc;
- }
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exresop - AML Interpreter operand/object resolution
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlcode.h>
-#include <acpi/acparser.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exresop")
-
-/* Local prototypes */
-static acpi_status
-acpi_ex_check_object_type(acpi_object_type type_needed,
- acpi_object_type this_type, void *object);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_check_object_type
- *
- * PARAMETERS: type_needed Object type needed
- * this_type Actual object type
- * Object Object pointer
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check required type against actual type
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ex_check_object_type(acpi_object_type type_needed,
- acpi_object_type this_type, void *object)
-{
- ACPI_FUNCTION_ENTRY();
-
- if (type_needed == ACPI_TYPE_ANY) {
-
- /* All types OK, so we don't perform any typechecks */
-
- return (AE_OK);
- }
-
- if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) {
- /*
- * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference
- * objects and thus allow them to be targets. (As per the ACPI
- * specification, a store to a constant is a noop.)
- */
- if ((this_type == ACPI_TYPE_INTEGER) &&
- (((union acpi_operand_object *)object)->common.
- flags & AOPOBJ_AML_CONSTANT)) {
- return (AE_OK);
- }
- }
-
- if (type_needed != this_type) {
- ACPI_ERROR((AE_INFO,
- "Needed type [%s], found [%s] %p",
- acpi_ut_get_type_name(type_needed),
- acpi_ut_get_type_name(this_type), object));
-
- return (AE_AML_OPERAND_TYPE);
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_resolve_operands
- *
- * PARAMETERS: Opcode - Opcode being interpreted
- * stack_ptr - Pointer to the operand stack to be
- * resolved
- * walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert multiple input operands to the types required by the
- * target operator.
- *
- * Each 5-bit group in arg_types represents one required
- * operand and indicates the required Type. The corresponding operand
- * will be converted to the required type if possible, otherwise we
- * abort with an exception.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_resolve_operands(u16 opcode,
- union acpi_operand_object ** stack_ptr,
- struct acpi_walk_state * walk_state)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status = AE_OK;
- u8 object_type;
- u32 arg_types;
- const struct acpi_opcode_info *op_info;
- u32 this_arg_type;
- acpi_object_type type_needed;
- u16 target_op = 0;
-
- ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode);
-
- op_info = acpi_ps_get_opcode_info(opcode);
- if (op_info->class == AML_CLASS_UNKNOWN) {
- return_ACPI_STATUS(AE_AML_BAD_OPCODE);
- }
-
- arg_types = op_info->runtime_args;
- if (arg_types == ARGI_INVALID_OPCODE) {
- ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode));
-
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Opcode %X [%s] RequiredOperandTypes=%8.8X\n",
- opcode, op_info->name, arg_types));
-
- /*
- * Normal exit is with (arg_types == 0) at end of argument list.
- * Function will return an exception from within the loop upon
- * finding an entry which is not (or cannot be converted
- * to) the required type; if stack underflows; or upon
- * finding a NULL stack entry (which should not happen).
- */
- while (GET_CURRENT_ARG_TYPE(arg_types)) {
- if (!stack_ptr || !*stack_ptr) {
- ACPI_ERROR((AE_INFO, "Null stack entry at %p",
- stack_ptr));
-
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- /* Extract useful items */
-
- obj_desc = *stack_ptr;
-
- /* Decode the descriptor type */
-
- switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
- case ACPI_DESC_TYPE_NAMED:
-
- /* Namespace Node */
-
- object_type =
- ((struct acpi_namespace_node *)obj_desc)->type;
-
- /*
- * Resolve an alias object. The construction of these objects
- * guarantees that there is only one level of alias indirection;
- * thus, the attached object is always the aliased namespace node
- */
- if (object_type == ACPI_TYPE_LOCAL_ALIAS) {
- obj_desc =
- acpi_ns_get_attached_object((struct
- acpi_namespace_node
- *)obj_desc);
- *stack_ptr = obj_desc;
- object_type =
- ((struct acpi_namespace_node *)obj_desc)->
- type;
- }
- break;
-
- case ACPI_DESC_TYPE_OPERAND:
-
- /* ACPI internal object */
-
- object_type = ACPI_GET_OBJECT_TYPE(obj_desc);
-
- /* Check for bad acpi_object_type */
-
- if (!acpi_ut_valid_object_type(object_type)) {
- ACPI_ERROR((AE_INFO,
- "Bad operand object type [%X]",
- object_type));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
-
- /* Validate the Reference */
-
- switch (obj_desc->reference.class) {
- case ACPI_REFCLASS_DEBUG:
-
- target_op = AML_DEBUG_OP;
-
- /*lint -fallthrough */
-
- case ACPI_REFCLASS_ARG:
- case ACPI_REFCLASS_LOCAL:
- case ACPI_REFCLASS_INDEX:
- case ACPI_REFCLASS_REFOF:
- case ACPI_REFCLASS_TABLE: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
- case ACPI_REFCLASS_NAME: /* Reference to a named object */
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Operand is a Reference, Class [%s] %2.2X\n",
- acpi_ut_get_reference_name
- (obj_desc),
- obj_desc->reference.
- class));
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unknown Reference Class %2.2X in %p",
- obj_desc->reference.class,
- obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- }
- break;
-
- default:
-
- /* Invalid descriptor */
-
- ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]",
- obj_desc,
- acpi_ut_get_descriptor_name(obj_desc)));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* Get one argument type, point to the next */
-
- this_arg_type = GET_CURRENT_ARG_TYPE(arg_types);
- INCREMENT_ARG_LIST(arg_types);
-
- /*
- * Handle cases where the object does not need to be
- * resolved to a value
- */
- switch (this_arg_type) {
- case ARGI_REF_OR_STRING: /* Can be a String or Reference */
-
- if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
- ACPI_DESC_TYPE_OPERAND)
- && (ACPI_GET_OBJECT_TYPE(obj_desc) ==
- ACPI_TYPE_STRING)) {
- /*
- * String found - the string references a named object and
- * must be resolved to a node
- */
- goto next_operand;
- }
-
- /*
- * Else not a string - fall through to the normal Reference
- * case below
- */
- /*lint -fallthrough */
-
- case ARGI_REFERENCE: /* References: */
- case ARGI_INTEGER_REF:
- case ARGI_OBJECT_REF:
- case ARGI_DEVICE_REF:
- case ARGI_TARGETREF: /* Allows implicit conversion rules before store */
- case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */
- case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */
-
- /*
- * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE
- * A Namespace Node is OK as-is
- */
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
- ACPI_DESC_TYPE_NAMED) {
- goto next_operand;
- }
-
- status =
- acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE,
- object_type, obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- goto next_operand;
-
- case ARGI_DATAREFOBJ: /* Store operator only */
-
- /*
- * We don't want to resolve index_op reference objects during
- * a store because this would be an implicit de_ref_of operation.
- * Instead, we just want to store the reference object.
- * -- All others must be resolved below.
- */
- if ((opcode == AML_STORE_OP) &&
- (ACPI_GET_OBJECT_TYPE(*stack_ptr) ==
- ACPI_TYPE_LOCAL_REFERENCE)
- && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) {
- goto next_operand;
- }
- break;
-
- default:
- /* All cases covered above */
- break;
- }
-
- /*
- * Resolve this object to a value
- */
- status = acpi_ex_resolve_to_value(stack_ptr, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the resolved object */
-
- obj_desc = *stack_ptr;
-
- /*
- * Check the resulting object (value) type
- */
- switch (this_arg_type) {
- /*
- * For the simple cases, only one type of resolved object
- * is allowed
- */
- case ARGI_MUTEX:
-
- /* Need an operand of type ACPI_TYPE_MUTEX */
-
- type_needed = ACPI_TYPE_MUTEX;
- break;
-
- case ARGI_EVENT:
-
- /* Need an operand of type ACPI_TYPE_EVENT */
-
- type_needed = ACPI_TYPE_EVENT;
- break;
-
- case ARGI_PACKAGE: /* Package */
-
- /* Need an operand of type ACPI_TYPE_PACKAGE */
-
- type_needed = ACPI_TYPE_PACKAGE;
- break;
-
- case ARGI_ANYTYPE:
-
- /* Any operand type will do */
-
- type_needed = ACPI_TYPE_ANY;
- break;
-
- case ARGI_DDBHANDLE:
-
- /* Need an operand of type ACPI_TYPE_DDB_HANDLE */
-
- type_needed = ACPI_TYPE_LOCAL_REFERENCE;
- break;
-
- /*
- * The more complex cases allow multiple resolved object types
- */
- case ARGI_INTEGER:
-
- /*
- * Need an operand of type ACPI_TYPE_INTEGER,
- * But we can implicitly convert from a STRING or BUFFER
- * Aka - "Implicit Source Operand Conversion"
- */
- status =
- acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16);
- if (ACPI_FAILURE(status)) {
- if (status == AE_TYPE) {
- ACPI_ERROR((AE_INFO,
- "Needed [Integer/String/Buffer], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- return_ACPI_STATUS(status);
- }
-
- if (obj_desc != *stack_ptr) {
- acpi_ut_remove_reference(obj_desc);
- }
- goto next_operand;
-
- case ARGI_BUFFER:
-
- /*
- * Need an operand of type ACPI_TYPE_BUFFER,
- * But we can implicitly convert from a STRING or INTEGER
- * Aka - "Implicit Source Operand Conversion"
- */
- status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr);
- if (ACPI_FAILURE(status)) {
- if (status == AE_TYPE) {
- ACPI_ERROR((AE_INFO,
- "Needed [Integer/String/Buffer], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- return_ACPI_STATUS(status);
- }
-
- if (obj_desc != *stack_ptr) {
- acpi_ut_remove_reference(obj_desc);
- }
- goto next_operand;
-
- case ARGI_STRING:
-
- /*
- * Need an operand of type ACPI_TYPE_STRING,
- * But we can implicitly convert from a BUFFER or INTEGER
- * Aka - "Implicit Source Operand Conversion"
- */
- status = acpi_ex_convert_to_string(obj_desc, stack_ptr,
- ACPI_IMPLICIT_CONVERT_HEX);
- if (ACPI_FAILURE(status)) {
- if (status == AE_TYPE) {
- ACPI_ERROR((AE_INFO,
- "Needed [Integer/String/Buffer], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- return_ACPI_STATUS(status);
- }
-
- if (obj_desc != *stack_ptr) {
- acpi_ut_remove_reference(obj_desc);
- }
- goto next_operand;
-
- case ARGI_COMPUTEDATA:
-
- /* Need an operand of type INTEGER, STRING or BUFFER */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /* Valid operand */
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Needed [Integer/String/Buffer], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- goto next_operand;
-
- case ARGI_BUFFER_OR_STRING:
-
- /* Need an operand of type STRING or BUFFER */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /* Valid operand */
- break;
-
- case ACPI_TYPE_INTEGER:
-
- /* Highest priority conversion is to type Buffer */
-
- status =
- acpi_ex_convert_to_buffer(obj_desc,
- stack_ptr);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (obj_desc != *stack_ptr) {
- acpi_ut_remove_reference(obj_desc);
- }
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Needed [Integer/String/Buffer], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- goto next_operand;
-
- case ARGI_DATAOBJECT:
- /*
- * ARGI_DATAOBJECT is only used by the size_of operator.
- * Need a buffer, string, package, or ref_of reference.
- *
- * The only reference allowed here is a direct reference to
- * a namespace node.
- */
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_PACKAGE:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- /* Valid operand */
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Needed [Buffer/String/Package/Reference], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- goto next_operand;
-
- case ARGI_COMPLEXOBJ:
-
- /* Need a buffer or package or (ACPI 2.0) String */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_PACKAGE:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /* Valid operand */
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Needed [Buffer/String/Package], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- goto next_operand;
-
- case ARGI_REGION_OR_BUFFER: /* Used by Load() only */
-
- /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_REGION:
-
- /* Valid operand */
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Needed [Region/Buffer], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- goto next_operand;
-
- case ARGI_DATAREFOBJ:
-
- /* Used by the Store() operator only */
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_PACKAGE:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_REFERENCE:
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
- case ACPI_TYPE_DDB_HANDLE:
-
- /* Valid operand */
- break;
-
- default:
-
- if (acpi_gbl_enable_interpreter_slack) {
- /*
- * Enable original behavior of Store(), allowing any and all
- * objects as the source operand. The ACPI spec does not
- * allow this, however.
- */
- break;
- }
-
- if (target_op == AML_DEBUG_OP) {
-
- /* Allow store of any object to the Debug object */
-
- break;
- }
-
- ACPI_ERROR((AE_INFO,
- "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p",
- acpi_ut_get_object_type_name
- (obj_desc), obj_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
- goto next_operand;
-
- default:
-
- /* Unknown type */
-
- ACPI_ERROR((AE_INFO,
- "Internal - Unknown ARGI (required operand) type %X",
- this_arg_type));
-
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Make sure that the original object was resolved to the
- * required object type (Simple cases only).
- */
- status = acpi_ex_check_object_type(type_needed,
- ACPI_GET_OBJECT_TYPE
- (*stack_ptr), *stack_ptr);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- next_operand:
- /*
- * If more operands needed, decrement stack_ptr to point
- * to next operand on stack
- */
- if (GET_CURRENT_ARG_TYPE(arg_types)) {
- stack_ptr--;
- }
- }
-
- ACPI_DUMP_OPERANDS(walk_state->operands,
- acpi_ps_get_opcode_name(opcode),
- walk_state->num_operands);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exstore - AML Interpreter object store support
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exstore")
-
-/* Local prototypes */
-static void
-acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
- u32 level, u32 index);
-
-static acpi_status
-acpi_ex_store_object_to_index(union acpi_operand_object *val_desc,
- union acpi_operand_object *dest_desc,
- struct acpi_walk_state *walk_state);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_do_debug_object
- *
- * PARAMETERS: source_desc - Value to be stored
- * Level - Indentation level (used for packages)
- * Index - Current package element, zero if not pkg
- *
- * RETURN: None
- *
- * DESCRIPTION: Handles stores to the Debug Object.
- *
- ******************************************************************************/
-
-static void
-acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
- u32 level, u32 index)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
-
- /* Print line header as long as we are not in the middle of an object display */
-
- if (!((level > 0) && index == 0)) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s",
- level, " "));
- }
-
- /* Display index for package output only */
-
- if (index > 0) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- "(%.2u) ", index - 1));
- }
-
- if (!source_desc) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n"));
- return_VOID;
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ",
- acpi_ut_get_object_type_name
- (source_desc)));
-
- if (!acpi_ut_valid_internal_object(source_desc)) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- "%p, Invalid Internal Object!\n",
- source_desc));
- return_VOID;
- }
- } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
- ACPI_DESC_TYPE_NAMED) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n",
- acpi_ut_get_type_name(((struct
- acpi_namespace_node
- *)source_desc)->
- type),
- source_desc));
- return_VOID;
- } else {
- return_VOID;
- }
-
- /* source_desc is of type ACPI_DESC_TYPE_OPERAND */
-
- switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
- case ACPI_TYPE_INTEGER:
-
- /* Output correct integer width */
-
- if (acpi_gbl_integer_byte_width == 4) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n",
- (u32) source_desc->integer.
- value));
- } else {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- "0x%8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(source_desc->
- integer.
- value)));
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n",
- (u32) source_desc->buffer.length));
- ACPI_DUMP_BUFFER(source_desc->buffer.pointer,
- (source_desc->buffer.length <
- 256) ? source_desc->buffer.length : 256);
- break;
-
- case ACPI_TYPE_STRING:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n",
- source_desc->string.length,
- source_desc->string.pointer));
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- "[Contains 0x%.2X Elements]\n",
- source_desc->package.count));
-
- /* Output the entire contents of the package */
-
- for (i = 0; i < source_desc->package.count; i++) {
- acpi_ex_do_debug_object(source_desc->package.
- elements[i], level + 4, i + 1);
- }
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ",
- acpi_ut_get_reference_name(source_desc)));
-
- /* Decode the reference */
-
- switch (source_desc->reference.class) {
- case ACPI_REFCLASS_INDEX:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n",
- source_desc->reference.value));
- break;
-
- case ACPI_REFCLASS_TABLE:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- "Table Index 0x%X\n",
- source_desc->reference.value));
- break;
-
- default:
- break;
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, " "));
-
- /* Check for valid node first, then valid object */
-
- if (source_desc->reference.node) {
- if (ACPI_GET_DESCRIPTOR_TYPE
- (source_desc->reference.node) !=
- ACPI_DESC_TYPE_NAMED) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- " %p - Not a valid namespace node\n",
- source_desc->reference.
- node));
- } else {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
- "Node %p [%4.4s] ",
- source_desc->reference.
- node,
- (source_desc->reference.
- node)->name.ascii));
-
- switch ((source_desc->reference.node)->type) {
-
- /* These types have no attached object */
-
- case ACPI_TYPE_DEVICE:
- acpi_os_printf("Device\n");
- break;
-
- case ACPI_TYPE_THERMAL:
- acpi_os_printf("Thermal Zone\n");
- break;
-
- default:
- acpi_ex_do_debug_object((source_desc->
- reference.
- node)->object,
- level + 4, 0);
- break;
- }
- }
- } else if (source_desc->reference.object) {
- if (ACPI_GET_DESCRIPTOR_TYPE
- (source_desc->reference.object) ==
- ACPI_DESC_TYPE_NAMED) {
- acpi_ex_do_debug_object(((struct
- acpi_namespace_node *)
- source_desc->reference.
- object)->object,
- level + 4, 0);
- } else {
- acpi_ex_do_debug_object(source_desc->reference.
- object, level + 4, 0);
- }
- }
- break;
-
- default:
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n",
- source_desc));
- break;
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n"));
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_store
- *
- * PARAMETERS: *source_desc - Value to be stored
- * *dest_desc - Where to store it. Must be an NS node
- * or an union acpi_operand_object of type
- * Reference;
- * walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Store the value described by source_desc into the location
- * described by dest_desc. Called by various interpreter
- * functions to store the result of an operation into
- * the destination operand -- not just simply the actual "Store"
- * ASL operator.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_store(union acpi_operand_object *source_desc,
- union acpi_operand_object *dest_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *ref_desc = dest_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc);
-
- /* Validate parameters */
-
- if (!source_desc || !dest_desc) {
- ACPI_ERROR((AE_INFO, "Null parameter"));
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- /* dest_desc can be either a namespace node or an ACPI object */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(dest_desc) == ACPI_DESC_TYPE_NAMED) {
- /*
- * Dest is a namespace node,
- * Storing an object into a Named node.
- */
- status = acpi_ex_store_object_to_node(source_desc,
- (struct
- acpi_namespace_node *)
- dest_desc, walk_state,
- ACPI_IMPLICIT_CONVERSION);
-
- return_ACPI_STATUS(status);
- }
-
- /* Destination object must be a Reference or a Constant object */
-
- switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
- case ACPI_TYPE_LOCAL_REFERENCE:
- break;
-
- case ACPI_TYPE_INTEGER:
-
- /* Allow stores to Constants -- a Noop as per ACPI spec */
-
- if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /*lint -fallthrough */
-
- default:
-
- /* Destination is not a Reference object */
-
- ACPI_ERROR((AE_INFO,
- "Target is not a Reference or Constant object - %s [%p]",
- acpi_ut_get_object_type_name(dest_desc),
- dest_desc));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /*
- * Examine the Reference class. These cases are handled:
- *
- * 1) Store to Name (Change the object associated with a name)
- * 2) Store to an indexed area of a Buffer or Package
- * 3) Store to a Method Local or Arg
- * 4) Store to the debug object
- */
- switch (ref_desc->reference.class) {
- case ACPI_REFCLASS_REFOF:
-
- /* Storing an object into a Name "container" */
-
- status = acpi_ex_store_object_to_node(source_desc,
- ref_desc->reference.
- object, walk_state,
- ACPI_IMPLICIT_CONVERSION);
- break;
-
- case ACPI_REFCLASS_INDEX:
-
- /* Storing to an Index (pointer into a packager or buffer) */
-
- status =
- acpi_ex_store_object_to_index(source_desc, ref_desc,
- walk_state);
- break;
-
- case ACPI_REFCLASS_LOCAL:
- case ACPI_REFCLASS_ARG:
-
- /* Store to a method local/arg */
-
- status =
- acpi_ds_store_object_to_local(ref_desc->reference.class,
- ref_desc->reference.value,
- source_desc, walk_state);
- break;
-
- case ACPI_REFCLASS_DEBUG:
-
- /*
- * Storing to the Debug object causes the value stored to be
- * displayed and otherwise has no effect -- see ACPI Specification
- */
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "**** Write to Debug Object: Object %p %s ****:\n\n",
- source_desc,
- acpi_ut_get_object_type_name(source_desc)));
-
- acpi_ex_do_debug_object(source_desc, 0, 0);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
- ref_desc->reference.class));
- ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO);
-
- status = AE_AML_INTERNAL;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_store_object_to_index
- *
- * PARAMETERS: *source_desc - Value to be stored
- * *dest_desc - Named object to receive the value
- * walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Store the object to indexed Buffer or Package element
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
- union acpi_operand_object *index_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *new_desc;
- u8 value = 0;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ex_store_object_to_index);
-
- /*
- * Destination must be a reference pointer, and
- * must point to either a buffer or a package
- */
- switch (index_desc->reference.target_type) {
- case ACPI_TYPE_PACKAGE:
- /*
- * Storing to a package element. Copy the object and replace
- * any existing object with the new object. No implicit
- * conversion is performed.
- *
- * The object at *(index_desc->Reference.Where) is the
- * element within the package that is to be modified.
- * The parent package object is at index_desc->Reference.Object
- */
- obj_desc = *(index_desc->reference.where);
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) ==
- ACPI_TYPE_LOCAL_REFERENCE
- && source_desc->reference.class == ACPI_REFCLASS_TABLE) {
-
- /* This is a DDBHandle, just add a reference to it */
-
- acpi_ut_add_reference(source_desc);
- new_desc = source_desc;
- } else {
- /* Normal object, copy it */
-
- status =
- acpi_ut_copy_iobject_to_iobject(source_desc,
- &new_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- if (obj_desc) {
-
- /* Decrement reference count by the ref count of the parent package */
-
- for (i = 0; i < ((union acpi_operand_object *)
- index_desc->reference.object)->common.
- reference_count; i++) {
- acpi_ut_remove_reference(obj_desc);
- }
- }
-
- *(index_desc->reference.where) = new_desc;
-
- /* Increment ref count by the ref count of the parent package-1 */
-
- for (i = 1; i < ((union acpi_operand_object *)
- index_desc->reference.object)->common.
- reference_count; i++) {
- acpi_ut_add_reference(new_desc);
- }
-
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- /*
- * Store into a Buffer or String (not actually a real buffer_field)
- * at a location defined by an Index.
- *
- * The first 8-bit element of the source object is written to the
- * 8-bit Buffer location defined by the Index destination object,
- * according to the ACPI 2.0 specification.
- */
-
- /*
- * Make sure the target is a Buffer or String. An error should
- * not happen here, since the reference_object was constructed
- * by the INDEX_OP code.
- */
- obj_desc = index_desc->reference.object;
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_BUFFER) &&
- (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_STRING)) {
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /*
- * The assignment of the individual elements will be slightly
- * different for each source type.
- */
- switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
- case ACPI_TYPE_INTEGER:
-
- /* Use the least-significant byte of the integer */
-
- value = (u8) (source_desc->integer.value);
- break;
-
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_STRING:
-
- /* Note: Takes advantage of common string/buffer fields */
-
- value = source_desc->buffer.pointer[0];
- break;
-
- default:
-
- /* All other types are invalid */
-
- ACPI_ERROR((AE_INFO,
- "Source must be Integer/Buffer/String type, not %s",
- acpi_ut_get_object_type_name(source_desc)));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* Store the source value into the target buffer byte */
-
- obj_desc->buffer.pointer[index_desc->reference.value] = value;
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField"));
- status = AE_AML_OPERAND_TYPE;
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_store_object_to_node
- *
- * PARAMETERS: source_desc - Value to be stored
- * Node - Named object to receive the value
- * walk_state - Current walk state
- * implicit_conversion - Perform implicit conversion (yes/no)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Store the object to the named object.
- *
- * The Assignment of an object to a named object is handled here
- * The value passed in will replace the current value (if any)
- * with the input value.
- *
- * When storing into an object the data is converted to the
- * target object type then stored in the object. This means
- * that the target object type (for an initialized target) will
- * not be changed by a store operation.
- *
- * Assumes parameters are already validated.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
- struct acpi_namespace_node *node,
- struct acpi_walk_state *walk_state,
- u8 implicit_conversion)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *target_desc;
- union acpi_operand_object *new_desc;
- acpi_object_type target_type;
-
- ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc);
-
- /* Get current type of the node, and object attached to Node */
-
- target_type = acpi_ns_get_type(node);
- target_desc = acpi_ns_get_attached_object(node);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n",
- source_desc,
- acpi_ut_get_object_type_name(source_desc), node,
- acpi_ut_get_type_name(target_type)));
-
- /*
- * Resolve the source object to an actual value
- * (If it is a reference object)
- */
- status = acpi_ex_resolve_object(&source_desc, target_type, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* If no implicit conversion, drop into the default case below */
-
- if ((!implicit_conversion) ||
- ((walk_state->opcode == AML_COPY_OP) &&
- (target_type != ACPI_TYPE_LOCAL_REGION_FIELD) &&
- (target_type != ACPI_TYPE_LOCAL_BANK_FIELD) &&
- (target_type != ACPI_TYPE_LOCAL_INDEX_FIELD))) {
- /*
- * Force execution of default (no implicit conversion). Note:
- * copy_object does not perform an implicit conversion, as per the ACPI
- * spec -- except in case of region/bank/index fields -- because these
- * objects must retain their original type permanently.
- */
- target_type = ACPI_TYPE_ANY;
- }
-
- /* Do the actual store operation */
-
- switch (target_type) {
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- /* For fields, copy the source data to the target field. */
-
- status = acpi_ex_write_data_to_field(source_desc, target_desc,
- &walk_state->result_obj);
- break;
-
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /*
- * These target types are all of type Integer/String/Buffer, and
- * therefore support implicit conversion before the store.
- *
- * Copy and/or convert the source object to a new target object
- */
- status =
- acpi_ex_store_object_to_object(source_desc, target_desc,
- &new_desc, walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (new_desc != target_desc) {
- /*
- * Store the new new_desc as the new value of the Name, and set
- * the Name's type to that of the value being stored in it.
- * source_desc reference count is incremented by attach_object.
- *
- * Note: This may change the type of the node if an explicit store
- * has been performed such that the node/object type has been
- * changed.
- */
- status =
- acpi_ns_attach_object(node, new_desc,
- new_desc->common.type);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Store %s into %s via Convert/Attach\n",
- acpi_ut_get_object_type_name
- (source_desc),
- acpi_ut_get_object_type_name
- (new_desc)));
- }
- break;
-
- default:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Storing %s (%p) directly into node (%p) with no implicit conversion\n",
- acpi_ut_get_object_type_name(source_desc),
- source_desc, node));
-
- /* No conversions for all other types. Just attach the source object */
-
- status = acpi_ns_attach_object(node, source_desc,
- ACPI_GET_OBJECT_TYPE
- (source_desc));
- break;
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exstoren - AML Interpreter object store support,
- * Store to Node (namespace object)
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exstoren")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_resolve_object
- *
- * PARAMETERS: source_desc_ptr - Pointer to the source object
- * target_type - Current type of the target
- * walk_state - Current walk state
- *
- * RETURN: Status, resolved object in source_desc_ptr.
- *
- * DESCRIPTION: Resolve an object. If the object is a reference, dereference
- * it and return the actual object in the source_desc_ptr.
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr,
- acpi_object_type target_type,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *source_desc = *source_desc_ptr;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_resolve_object);
-
- /* Ensure we have a Target that can be stored to */
-
- switch (target_type) {
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
- /*
- * These cases all require only Integers or values that
- * can be converted to Integers (Strings or Buffers)
- */
-
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
-
- /*
- * Stores into a Field/Region or into a Integer/Buffer/String
- * are all essentially the same. This case handles the
- * "interchangeable" types Integer, String, and Buffer.
- */
- if (ACPI_GET_OBJECT_TYPE(source_desc) ==
- ACPI_TYPE_LOCAL_REFERENCE) {
-
- /* Resolve a reference object first */
-
- status =
- acpi_ex_resolve_to_value(source_desc_ptr,
- walk_state);
- if (ACPI_FAILURE(status)) {
- break;
- }
- }
-
- /* For copy_object, no further validation necessary */
-
- if (walk_state->opcode == AML_COPY_OP) {
- break;
- }
-
- /* Must have a Integer, Buffer, or String */
-
- if ((ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_INTEGER) &&
- (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) &&
- (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) &&
- !((ACPI_GET_OBJECT_TYPE(source_desc) ==
- ACPI_TYPE_LOCAL_REFERENCE)
- && (source_desc->reference.class ==
- ACPI_REFCLASS_TABLE))) {
-
- /* Conversion successful but still not a valid type */
-
- ACPI_ERROR((AE_INFO,
- "Cannot assign type %s to %s (must be type Int/Str/Buf)",
- acpi_ut_get_object_type_name(source_desc),
- acpi_ut_get_type_name(target_type)));
- status = AE_AML_OPERAND_TYPE;
- }
- break;
-
- case ACPI_TYPE_LOCAL_ALIAS:
- case ACPI_TYPE_LOCAL_METHOD_ALIAS:
-
- /*
- * All aliases should have been resolved earlier, during the
- * operand resolution phase.
- */
- ACPI_ERROR((AE_INFO, "Store into an unresolved Alias object"));
- status = AE_AML_INTERNAL;
- break;
-
- case ACPI_TYPE_PACKAGE:
- default:
-
- /*
- * All other types than Alias and the various Fields come here,
- * including the untyped case - ACPI_TYPE_ANY.
- */
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_store_object_to_object
- *
- * PARAMETERS: source_desc - Object to store
- * dest_desc - Object to receive a copy of the source
- * new_desc - New object if dest_desc is obsoleted
- * walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: "Store" an object to another object. This may include
- * converting the source type to the target type (implicit
- * conversion), and a copy of the value of the source to
- * the target.
- *
- * The Assignment of an object to another (not named) object
- * is handled here.
- * The Source passed in will replace the current value (if any)
- * with the input value.
- *
- * When storing into an object the data is converted to the
- * target object type then stored in the object. This means
- * that the target object type (for an initialized target) will
- * not be changed by a store operation.
- *
- * This module allows destination types of Number, String,
- * Buffer, and Package.
- *
- * Assumes parameters are already validated. NOTE: source_desc
- * resolution (from a reference object) must be performed by
- * the caller if necessary.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_store_object_to_object(union acpi_operand_object *source_desc,
- union acpi_operand_object *dest_desc,
- union acpi_operand_object **new_desc,
- struct acpi_walk_state *walk_state)
-{
- union acpi_operand_object *actual_src_desc;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc);
-
- actual_src_desc = source_desc;
- if (!dest_desc) {
- /*
- * There is no destination object (An uninitialized node or
- * package element), so we can simply copy the source object
- * creating a new destination object
- */
- status =
- acpi_ut_copy_iobject_to_iobject(actual_src_desc, new_desc,
- walk_state);
- return_ACPI_STATUS(status);
- }
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) !=
- ACPI_GET_OBJECT_TYPE(dest_desc)) {
- /*
- * The source type does not match the type of the destination.
- * Perform the "implicit conversion" of the source to the current type
- * of the target as per the ACPI specification.
- *
- * If no conversion performed, actual_src_desc = source_desc.
- * Otherwise, actual_src_desc is a temporary object to hold the
- * converted object.
- */
- status =
- acpi_ex_convert_to_target_type(ACPI_GET_OBJECT_TYPE
- (dest_desc), source_desc,
- &actual_src_desc,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (source_desc == actual_src_desc) {
- /*
- * No conversion was performed. Return the source_desc as the
- * new object.
- */
- *new_desc = source_desc;
- return_ACPI_STATUS(AE_OK);
- }
- }
-
- /*
- * We now have two objects of identical types, and we can perform a
- * copy of the *value* of the source object.
- */
- switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
- case ACPI_TYPE_INTEGER:
-
- dest_desc->integer.value = actual_src_desc->integer.value;
-
- /* Truncate value if we are executing from a 32-bit ACPI table */
-
- acpi_ex_truncate_for32bit_table(dest_desc);
- break;
-
- case ACPI_TYPE_STRING:
-
- status =
- acpi_ex_store_string_to_string(actual_src_desc, dest_desc);
- break;
-
- case ACPI_TYPE_BUFFER:
-
- status =
- acpi_ex_store_buffer_to_buffer(actual_src_desc, dest_desc);
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- status =
- acpi_ut_copy_iobject_to_iobject(actual_src_desc, &dest_desc,
- walk_state);
- break;
-
- default:
- /*
- * All other types come here.
- */
- ACPI_WARNING((AE_INFO, "Store into type %s not implemented",
- acpi_ut_get_object_type_name(dest_desc)));
-
- status = AE_NOT_IMPLEMENTED;
- break;
- }
-
- if (actual_src_desc != source_desc) {
-
- /* Delete the intermediate (temporary) source object */
-
- acpi_ut_remove_reference(actual_src_desc);
- }
-
- *new_desc = dest_desc;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exstorob - AML Interpreter object store support, store to object
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exstorob")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_store_buffer_to_buffer
- *
- * PARAMETERS: source_desc - Source object to copy
- * target_desc - Destination object of the copy
- *
- * RETURN: Status
- *
- * DESCRIPTION: Copy a buffer object to another buffer object.
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
- union acpi_operand_object *target_desc)
-{
- u32 length;
- u8 *buffer;
-
- ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc);
-
- /* We know that source_desc is a buffer by now */
-
- buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer);
- length = source_desc->buffer.length;
-
- /*
- * If target is a buffer of length zero or is a static buffer,
- * allocate a new buffer of the proper length
- */
- if ((target_desc->buffer.length == 0) ||
- (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) {
- target_desc->buffer.pointer = ACPI_ALLOCATE(length);
- if (!target_desc->buffer.pointer) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- target_desc->buffer.length = length;
- }
-
- /* Copy source buffer to target buffer */
-
- if (length <= target_desc->buffer.length) {
-
- /* Clear existing buffer and copy in the new one */
-
- ACPI_MEMSET(target_desc->buffer.pointer, 0,
- target_desc->buffer.length);
- ACPI_MEMCPY(target_desc->buffer.pointer, buffer, length);
-
-#ifdef ACPI_OBSOLETE_BEHAVIOR
- /*
- * NOTE: ACPI versions up to 3.0 specified that the buffer must be
- * truncated if the string is smaller than the buffer. However, "other"
- * implementations of ACPI never did this and thus became the defacto
- * standard. ACPI 3.0_a changes this behavior such that the buffer
- * is no longer truncated.
- */
-
- /*
- * OBSOLETE BEHAVIOR:
- * If the original source was a string, we must truncate the buffer,
- * according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer
- * copy must not truncate the original buffer.
- */
- if (original_src_type == ACPI_TYPE_STRING) {
-
- /* Set the new length of the target */
-
- target_desc->buffer.length = length;
- }
-#endif
- } else {
- /* Truncate the source, copy only what will fit */
-
- ACPI_MEMCPY(target_desc->buffer.pointer, buffer,
- target_desc->buffer.length);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Truncating source buffer from %X to %X\n",
- length, target_desc->buffer.length));
- }
-
- /* Copy flags */
-
- target_desc->buffer.flags = source_desc->buffer.flags;
- target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_store_string_to_string
- *
- * PARAMETERS: source_desc - Source object to copy
- * target_desc - Destination object of the copy
- *
- * RETURN: Status
- *
- * DESCRIPTION: Copy a String object to another String object
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
- union acpi_operand_object *target_desc)
-{
- u32 length;
- u8 *buffer;
-
- ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc);
-
- /* We know that source_desc is a string by now */
-
- buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer);
- length = source_desc->string.length;
-
- /*
- * Replace existing string value if it will fit and the string
- * pointer is not a static pointer (part of an ACPI table)
- */
- if ((length < target_desc->string.length) &&
- (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
- /*
- * String will fit in existing non-static buffer.
- * Clear old string and copy in the new one
- */
- ACPI_MEMSET(target_desc->string.pointer, 0,
- (acpi_size) target_desc->string.length + 1);
- ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
- } else {
- /*
- * Free the current buffer, then allocate a new buffer
- * large enough to hold the value
- */
- if (target_desc->string.pointer &&
- (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
-
- /* Only free if not a pointer into the DSDT */
-
- ACPI_FREE(target_desc->string.pointer);
- }
-
- target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size)
- length + 1);
- if (!target_desc->string.pointer) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
- ACPI_MEMCPY(target_desc->string.pointer, buffer, length);
- }
-
- /* Set the new target length */
-
- target_desc->string.length = length;
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exsystem - Interface to OS services
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exsystem")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_wait_semaphore
- *
- * PARAMETERS: Semaphore - Semaphore to wait on
- * Timeout - Max time to wait
- *
- * RETURN: Status
- *
- * DESCRIPTION: Implements a semaphore wait with a check to see if the
- * semaphore is available immediately. If it is not, the
- * interpreter is released before waiting.
- *
- ******************************************************************************/
-acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
-
- status = acpi_os_wait_semaphore(semaphore, 1, ACPI_DO_NOT_WAIT);
- if (ACPI_SUCCESS(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (status == AE_TIME) {
-
- /* We must wait, so unlock the interpreter */
-
- acpi_ex_relinquish_interpreter();
-
- status = acpi_os_wait_semaphore(semaphore, 1, timeout);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "*** Thread awake after blocking, %s\n",
- acpi_format_exception(status)));
-
- /* Reacquire the interpreter */
-
- acpi_ex_reacquire_interpreter();
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_wait_mutex
- *
- * PARAMETERS: Mutex - Mutex to wait on
- * Timeout - Max time to wait
- *
- * RETURN: Status
- *
- * DESCRIPTION: Implements a mutex wait with a check to see if the
- * mutex is available immediately. If it is not, the
- * interpreter is released before waiting.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_system_wait_mutex);
-
- status = acpi_os_acquire_mutex(mutex, ACPI_DO_NOT_WAIT);
- if (ACPI_SUCCESS(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (status == AE_TIME) {
-
- /* We must wait, so unlock the interpreter */
-
- acpi_ex_relinquish_interpreter();
-
- status = acpi_os_acquire_mutex(mutex, timeout);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "*** Thread awake after blocking, %s\n",
- acpi_format_exception(status)));
-
- /* Reacquire the interpreter */
-
- acpi_ex_reacquire_interpreter();
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_do_stall
- *
- * PARAMETERS: how_long - The amount of time to stall,
- * in microseconds
- *
- * RETURN: Status
- *
- * DESCRIPTION: Suspend running thread for specified amount of time.
- * Note: ACPI specification requires that Stall() does not
- * relinquish the processor, and delays longer than 100 usec
- * should use Sleep() instead. We allow stalls up to 255 usec
- * for compatibility with other interpreters and existing BIOSs.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_system_do_stall(u32 how_long)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_ENTRY();
-
- if (how_long > 255) { /* 255 microseconds */
- /*
- * Longer than 255 usec, this is an error
- *
- * (ACPI specifies 100 usec as max, but this gives some slack in
- * order to support existing BIOSs)
- */
- ACPI_ERROR((AE_INFO, "Time parameter is too large (%d)",
- how_long));
- status = AE_AML_OPERAND_VALUE;
- } else {
- acpi_os_stall(how_long);
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_do_suspend
- *
- * PARAMETERS: how_long - The amount of time to suspend,
- * in milliseconds
- *
- * RETURN: None
- *
- * DESCRIPTION: Suspend running thread for specified amount of time.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Since this thread will sleep, we must release the interpreter */
-
- acpi_ex_relinquish_interpreter();
-
- acpi_os_sleep(how_long);
-
- /* And now we must get the interpreter again */
-
- acpi_ex_reacquire_interpreter();
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_signal_event
- *
- * PARAMETERS: obj_desc - The object descriptor for this op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Provides an access point to perform synchronization operations
- * within the AML.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_system_signal_event(union acpi_operand_object * obj_desc)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_system_signal_event);
-
- if (obj_desc) {
- status =
- acpi_os_signal_semaphore(obj_desc->event.os_semaphore, 1);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_wait_event
- *
- * PARAMETERS: time_desc - The 'time to delay' object descriptor
- * obj_desc - The object descriptor for this op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Provides an access point to perform synchronization operations
- * within the AML. This operation is a request to wait for an
- * event.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_system_wait_event(union acpi_operand_object *time_desc,
- union acpi_operand_object *obj_desc)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ex_system_wait_event);
-
- if (obj_desc) {
- status =
- acpi_ex_system_wait_semaphore(obj_desc->event.os_semaphore,
- (u16) time_desc->integer.
- value);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_system_reset_event
- *
- * PARAMETERS: obj_desc - The object descriptor for this op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Reset an event to a known state.
- *
- ******************************************************************************/
-
-acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc)
-{
- acpi_status status = AE_OK;
- acpi_semaphore temp_semaphore;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * We are going to simply delete the existing semaphore and
- * create a new one!
- */
- status =
- acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore);
- if (ACPI_SUCCESS(status)) {
- (void)acpi_os_delete_semaphore(obj_desc->event.os_semaphore);
- obj_desc->event.os_semaphore = temp_semaphore;
- }
-
- return (status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: exutils - interpreter/scanner utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-/*
- * DEFINE_AML_GLOBALS is tested in amlcode.h
- * to determine whether certain global names should be "defined" or only
- * "declared" in the current compilation. This enhances maintainability
- * by enabling a single header file to embody all knowledge of the names
- * in question.
- *
- * Exactly one module of any executable should #define DEFINE_GLOBALS
- * before #including the header files which use this convention. The
- * names in question will be defined and initialized in that module,
- * and declared as extern in all other modules which #include those
- * header files.
- */
-
-#define DEFINE_AML_GLOBALS
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exutils")
-
-/* Local prototypes */
-static u32 acpi_ex_digits_needed(acpi_integer value, u32 base);
-
-#ifndef ACPI_NO_METHOD_EXECUTION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_enter_interpreter
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Enter the interpreter execution region. Failure to enter
- * the interpreter region is a fatal system error. Used in
- * conjunction with exit_interpreter.
- *
- ******************************************************************************/
-
-void acpi_ex_enter_interpreter(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_enter_interpreter);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not acquire AML Interpreter mutex"));
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_reacquire_interpreter
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Reacquire the interpreter execution region from within the
- * interpreter code. Failure to enter the interpreter region is a
- * fatal system error. Used in conjuction with
- * relinquish_interpreter
- *
- ******************************************************************************/
-
-void acpi_ex_reacquire_interpreter(void)
-{
- ACPI_FUNCTION_TRACE(ex_reacquire_interpreter);
-
- /*
- * If the global serialized flag is set, do not release the interpreter,
- * since it was not actually released by acpi_ex_relinquish_interpreter.
- * This forces the interpreter to be single threaded.
- */
- if (!acpi_gbl_all_methods_serialized) {
- acpi_ex_enter_interpreter();
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_exit_interpreter
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Exit the interpreter execution region. This is the top level
- * routine used to exit the interpreter when all processing has
- * been completed.
- *
- ******************************************************************************/
-
-void acpi_ex_exit_interpreter(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_exit_interpreter);
-
- status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not release AML Interpreter mutex"));
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_relinquish_interpreter
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Exit the interpreter execution region, from within the
- * interpreter - before attempting an operation that will possibly
- * block the running thread.
- *
- * Cases where the interpreter is unlocked internally
- * 1) Method to be blocked on a Sleep() AML opcode
- * 2) Method to be blocked on an Acquire() AML opcode
- * 3) Method to be blocked on a Wait() AML opcode
- * 4) Method to be blocked to acquire the global lock
- * 5) Method to be blocked waiting to execute a serialized control method
- * that is currently executing
- * 6) About to invoke a user-installed opregion handler
- *
- ******************************************************************************/
-
-void acpi_ex_relinquish_interpreter(void)
-{
- ACPI_FUNCTION_TRACE(ex_relinquish_interpreter);
-
- /*
- * If the global serialized flag is set, do not release the interpreter.
- * This forces the interpreter to be single threaded.
- */
- if (!acpi_gbl_all_methods_serialized) {
- acpi_ex_exit_interpreter();
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_truncate_for32bit_table
- *
- * PARAMETERS: obj_desc - Object to be truncated
- *
- * RETURN: none
- *
- * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is
- * 32-bit, as determined by the revision of the DSDT.
- *
- ******************************************************************************/
-
-void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc)
-{
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Object must be a valid number and we must be executing
- * a control method. NS node could be there for AML_INT_NAMEPATH_OP.
- */
- if ((!obj_desc) ||
- (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) ||
- (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) {
- return;
- }
-
- if (acpi_gbl_integer_byte_width == 4) {
- /*
- * We are running a method that exists in a 32-bit ACPI table.
- * Truncate the value to 32 bits by zeroing out the upper 32-bit field
- */
- obj_desc->integer.value &= (acpi_integer) ACPI_UINT32_MAX;
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_acquire_global_lock
- *
- * PARAMETERS: field_flags - Flags with Lock rule:
- * always_lock or never_lock
- *
- * RETURN: None
- *
- * DESCRIPTION: Obtain the ACPI hardware Global Lock, only if the field
- * flags specifiy that it is to be obtained before field access.
- *
- ******************************************************************************/
-
-void acpi_ex_acquire_global_lock(u32 field_flags)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_acquire_global_lock);
-
- /* Only use the lock if the always_lock bit is set */
-
- if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) {
- return_VOID;
- }
-
- /* Attempt to get the global lock, wait forever */
-
- status = acpi_ex_acquire_mutex_object(ACPI_WAIT_FOREVER,
- acpi_gbl_global_lock_mutex,
- acpi_os_get_thread_id());
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not acquire Global Lock"));
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_release_global_lock
- *
- * PARAMETERS: field_flags - Flags with Lock rule:
- * always_lock or never_lock
- *
- * RETURN: None
- *
- * DESCRIPTION: Release the ACPI hardware Global Lock
- *
- ******************************************************************************/
-
-void acpi_ex_release_global_lock(u32 field_flags)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ex_release_global_lock);
-
- /* Only use the lock if the always_lock bit is set */
-
- if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) {
- return_VOID;
- }
-
- /* Release the global lock */
-
- status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
- if (ACPI_FAILURE(status)) {
-
- /* Report the error, but there isn't much else we can do */
-
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not release Global Lock"));
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_digits_needed
- *
- * PARAMETERS: Value - Value to be represented
- * Base - Base of representation
- *
- * RETURN: The number of digits.
- *
- * DESCRIPTION: Calculate the number of digits needed to represent the Value
- * in the given Base (Radix)
- *
- ******************************************************************************/
-
-static u32 acpi_ex_digits_needed(acpi_integer value, u32 base)
-{
- u32 num_digits;
- acpi_integer current_value;
-
- ACPI_FUNCTION_TRACE(ex_digits_needed);
-
- /* acpi_integer is unsigned, so we don't worry about a '-' prefix */
-
- if (value == 0) {
- return_UINT32(1);
- }
-
- current_value = value;
- num_digits = 0;
-
- /* Count the digits in the requested base */
-
- while (current_value) {
- (void)acpi_ut_short_divide(current_value, base, ¤t_value,
- NULL);
- num_digits++;
- }
-
- return_UINT32(num_digits);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_eisa_id_to_string
- *
- * PARAMETERS: numeric_id - EISA ID to be converted
- * out_string - Where to put the converted string (8 bytes)
- *
- * RETURN: None
- *
- * DESCRIPTION: Convert a numeric EISA ID to string representation
- *
- ******************************************************************************/
-
-void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string)
-{
- u32 eisa_id;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Swap ID to big-endian to get contiguous bits */
-
- eisa_id = acpi_ut_dword_byte_swap(numeric_id);
-
- out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f));
- out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f));
- out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f));
- out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12);
- out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8);
- out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4);
- out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0);
- out_string[7] = 0;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_unsigned_integer_to_string
- *
- * PARAMETERS: Value - Value to be converted
- * out_string - Where to put the converted string (8 bytes)
- *
- * RETURN: None, string
- *
- * DESCRIPTION: Convert a number to string representation. Assumes string
- * buffer is large enough to hold the string.
- *
- ******************************************************************************/
-
-void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string)
-{
- u32 count;
- u32 digits_needed;
- u32 remainder;
-
- ACPI_FUNCTION_ENTRY();
-
- digits_needed = acpi_ex_digits_needed(value, 10);
- out_string[digits_needed] = 0;
-
- for (count = digits_needed; count > 0; count--) {
- (void)acpi_ut_short_divide(value, 10, &value, &remainder);
- out_string[count - 1] = (char)('0' + remainder);
- }
-}
-
-#endif
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := hwacpi.o hwgpe.o hwregs.o hwsleep.o hwxface.o
-
-obj-$(ACPI_FUTURE_USAGE) += hwtimer.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwacpi")
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_set_mode
- *
- * PARAMETERS: Mode - SYS_MODE_ACPI or SYS_MODE_LEGACY
- *
- * RETURN: Status
- *
- * DESCRIPTION: Transitions the system into the requested mode.
- *
- ******************************************************************************/
-acpi_status acpi_hw_set_mode(u32 mode)
-{
-
- acpi_status status;
- u32 retry;
-
- ACPI_FUNCTION_TRACE(hw_set_mode);
-
- /*
- * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
- * system does not support mode transition.
- */
- if (!acpi_gbl_FADT.smi_command) {
- ACPI_ERROR((AE_INFO,
- "No SMI_CMD in FADT, mode transition failed"));
- return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
- }
-
- /*
- * ACPI 2.0 clarified the meaning of ACPI_ENABLE and ACPI_DISABLE
- * in FADT: If it is zero, enabling or disabling is not supported.
- * As old systems may have used zero for mode transition,
- * we make sure both the numbers are zero to determine these
- * transitions are not supported.
- */
- if (!acpi_gbl_FADT.acpi_enable && !acpi_gbl_FADT.acpi_disable) {
- ACPI_ERROR((AE_INFO,
- "No ACPI mode transition supported in this system (enable/disable both zero)"));
- return_ACPI_STATUS(AE_OK);
- }
-
- switch (mode) {
- case ACPI_SYS_MODE_ACPI:
-
- /* BIOS should have disabled ALL fixed and GP events */
-
- status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
- (u32) acpi_gbl_FADT.acpi_enable, 8);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Attempting to enable ACPI mode\n"));
- break;
-
- case ACPI_SYS_MODE_LEGACY:
-
- /*
- * BIOS should clear all fixed status bits and restore fixed event
- * enable bits to default
- */
- status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
- (u32) acpi_gbl_FADT.acpi_disable,
- 8);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Attempting to enable Legacy (non-ACPI) mode\n"));
- break;
-
- default:
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not write ACPI mode change"));
- return_ACPI_STATUS(status);
- }
-
- /*
- * Some hardware takes a LONG time to switch modes. Give them 3 sec to
- * do so, but allow faster systems to proceed more quickly.
- */
- retry = 3000;
- while (retry) {
- if (acpi_hw_get_mode() == mode) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Mode %X successfully enabled\n",
- mode));
- return_ACPI_STATUS(AE_OK);
- }
- acpi_os_stall(1000);
- retry--;
- }
-
- ACPI_ERROR((AE_INFO, "Hardware did not change modes"));
- return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_hw_get_mode
- *
- * PARAMETERS: none
- *
- * RETURN: SYS_MODE_ACPI or SYS_MODE_LEGACY
- *
- * DESCRIPTION: Return current operating state of system. Determined by
- * querying the SCI_EN bit.
- *
- ******************************************************************************/
-
-u32 acpi_hw_get_mode(void)
-{
- acpi_status status;
- u32 value;
-
- ACPI_FUNCTION_TRACE(hw_get_mode);
-
- /*
- * ACPI 2.0 clarified that if SMI_CMD in FADT is zero,
- * system does not support mode transition.
- */
- if (!acpi_gbl_FADT.smi_command) {
- return_UINT32(ACPI_SYS_MODE_ACPI);
- }
-
- status = acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value);
- if (ACPI_FAILURE(status)) {
- return_UINT32(ACPI_SYS_MODE_LEGACY);
- }
-
- if (value) {
- return_UINT32(ACPI_SYS_MODE_ACPI);
- } else {
- return_UINT32(ACPI_SYS_MODE_LEGACY);
- }
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: hwgpe - Low level GPE enable/disable/clear functions
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwgpe")
-
-/* Local prototypes */
-static acpi_status
-acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block,
- void *context);
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_low_disable_gpe
- *
- * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable a single GPE in the enable register.
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
-{
- struct acpi_gpe_register_info *gpe_register_info;
- acpi_status status;
- u32 enable_mask;
-
- /* Get the info block for the entire GPE register */
-
- gpe_register_info = gpe_event_info->register_info;
- if (!gpe_register_info) {
- return (AE_NOT_EXIST);
- }
-
- /* Get current value of the enable register that contains this GPE */
-
- status = acpi_read(&enable_mask, &gpe_register_info->enable_address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Clear just the bit that corresponds to this GPE */
-
- ACPI_CLEAR_BIT(enable_mask,
- ((u32) 1 <<
- (gpe_event_info->gpe_number -
- gpe_register_info->base_gpe_number)));
-
- /* Write the updated enable mask */
-
- status = acpi_write(enable_mask, &gpe_register_info->enable_address);
- return (status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_write_gpe_enable_reg
- *
- * PARAMETERS: gpe_event_info - Info block for the GPE to be enabled
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write a GPE enable register. Note: The bit for this GPE must
- * already be cleared or set in the parent register
- * enable_for_run mask.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
-{
- struct acpi_gpe_register_info *gpe_register_info;
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Get the info block for the entire GPE register */
-
- gpe_register_info = gpe_event_info->register_info;
- if (!gpe_register_info) {
- return (AE_NOT_EXIST);
- }
-
- /* Write the entire GPE (runtime) enable register */
-
- status = acpi_write(gpe_register_info->enable_for_run,
- &gpe_register_info->enable_address);
-
- return (status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_clear_gpe
- *
- * PARAMETERS: gpe_event_info - Info block for the GPE to be cleared
- *
- * RETURN: Status
- *
- * DESCRIPTION: Clear the status bit for a single GPE.
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
-{
- acpi_status status;
- u8 register_bit;
-
- ACPI_FUNCTION_ENTRY();
-
- register_bit = (u8)
- (1 <<
- (gpe_event_info->gpe_number -
- gpe_event_info->register_info->base_gpe_number));
-
- /*
- * Write a one to the appropriate bit in the status register to
- * clear this GPE.
- */
- status = acpi_write(register_bit,
- &gpe_event_info->register_info->status_address);
-
- return (status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_get_gpe_status
- *
- * PARAMETERS: gpe_event_info - Info block for the GPE to queried
- * event_status - Where the GPE status is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Return the status of a single GPE.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
- acpi_event_status * event_status)
-{
- u32 in_byte;
- u8 register_bit;
- struct acpi_gpe_register_info *gpe_register_info;
- acpi_status status;
- acpi_event_status local_event_status = 0;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!event_status) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Get the info block for the entire GPE register */
-
- gpe_register_info = gpe_event_info->register_info;
-
- /* Get the register bitmask for this GPE */
-
- register_bit = (u8)
- (1 <<
- (gpe_event_info->gpe_number -
- gpe_event_info->register_info->base_gpe_number));
-
- /* GPE currently enabled? (enabled for runtime?) */
-
- if (register_bit & gpe_register_info->enable_for_run) {
- local_event_status |= ACPI_EVENT_FLAG_ENABLED;
- }
-
- /* GPE enabled for wake? */
-
- if (register_bit & gpe_register_info->enable_for_wake) {
- local_event_status |= ACPI_EVENT_FLAG_WAKE_ENABLED;
- }
-
- /* GPE currently active (status bit == 1)? */
-
- status = acpi_read(&in_byte, &gpe_register_info->status_address);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- if (register_bit & in_byte) {
- local_event_status |= ACPI_EVENT_FLAG_SET;
- }
-
- /* Set return value */
-
- (*event_status) = local_event_status;
-
- unlock_and_exit:
- return (status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_disable_gpe_block
- *
- * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
- * gpe_block - Gpe Block info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable all GPEs within a single GPE block
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block, void *context)
-{
- u32 i;
- acpi_status status;
-
- /* Examine each GPE Register within the block */
-
- for (i = 0; i < gpe_block->register_count; i++) {
-
- /* Disable all GPEs in this register */
-
- status =
- acpi_write(0x00,
- &gpe_block->register_info[i].enable_address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- return (AE_OK);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_clear_gpe_block
- *
- * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
- * gpe_block - Gpe Block info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Clear status bits for all GPEs within a single GPE block
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block, void *context)
-{
- u32 i;
- acpi_status status;
-
- /* Examine each GPE Register within the block */
-
- for (i = 0; i < gpe_block->register_count; i++) {
-
- /* Clear status on all GPEs in this register */
-
- status =
- acpi_write(0xFF,
- &gpe_block->register_info[i].status_address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- return (AE_OK);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_enable_runtime_gpe_block
- *
- * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
- * gpe_block - Gpe Block info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes
- * combination wake/run GPEs.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block, void *context)
-{
- u32 i;
- acpi_status status;
-
- /* NOTE: assumes that all GPEs are currently disabled */
-
- /* Examine each GPE Register within the block */
-
- for (i = 0; i < gpe_block->register_count; i++) {
- if (!gpe_block->register_info[i].enable_for_run) {
- continue;
- }
-
- /* Enable all "runtime" GPEs in this register */
-
- status = acpi_write(gpe_block->register_info[i].enable_for_run,
- &gpe_block->register_info[i].
- enable_address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- return (AE_OK);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_enable_wakeup_gpe_block
- *
- * PARAMETERS: gpe_xrupt_info - GPE Interrupt info
- * gpe_block - Gpe Block info
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes
- * combination wake/run GPEs.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
- struct acpi_gpe_block_info *gpe_block,
- void *context)
-{
- u32 i;
- acpi_status status;
-
- /* Examine each GPE Register within the block */
-
- for (i = 0; i < gpe_block->register_count; i++) {
- if (!gpe_block->register_info[i].enable_for_wake) {
- continue;
- }
-
- /* Enable all "wake" GPEs in this register */
-
- status = acpi_write(gpe_block->register_info[i].enable_for_wake,
- &gpe_block->register_info[i].
- enable_address);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- return (AE_OK);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_disable_all_gpes
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disable and clear all GPEs in all GPE blocks
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_disable_all_gpes(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_disable_all_gpes);
-
- status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
- status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_enable_all_runtime_gpes
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_enable_all_runtime_gpes(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes);
-
- status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block, NULL);
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_enable_all_wakeup_gpes
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_enable_all_wakeup_gpes(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes);
-
- status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block, NULL);
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/*******************************************************************************
- *
- * Module Name: hwregs - Read/write access functions for the various ACPI
- * control and status registers.
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwregs")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_hw_clear_acpi_status
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Clears all fixed and general purpose status bits
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status acpi_hw_clear_acpi_status(void)
-{
- acpi_status status;
- acpi_cpu_flags lock_flags = 0;
-
- ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
- ACPI_BITMASK_ALL_FIXED_STATUS,
- (u16) acpi_gbl_FADT.xpm1a_event_block.address));
-
- lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
- ACPI_BITMASK_ALL_FIXED_STATUS);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Clear the fixed events */
-
- if (acpi_gbl_FADT.xpm1b_event_block.address) {
- status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS,
- &acpi_gbl_FADT.xpm1b_event_block);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- }
-
- /* Clear the GPE Bits in all GPE registers in all GPE blocks */
-
- status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
-
- unlock_and_exit:
- acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_hw_get_register_bit_mask
- *
- * PARAMETERS: register_id - Index of ACPI Register to access
- *
- * RETURN: The bitmask to be used when accessing the register
- *
- * DESCRIPTION: Map register_id into a register bitmask.
- *
- ******************************************************************************/
-
-struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
-{
- ACPI_FUNCTION_ENTRY();
-
- if (register_id > ACPI_BITREG_MAX) {
- ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X",
- register_id));
- return (NULL);
- }
-
- return (&acpi_gbl_bit_register_info[register_id]);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_register_read
- *
- * PARAMETERS: register_id - ACPI Register ID
- * return_value - Where the register value is returned
- *
- * RETURN: Status and the value read.
- *
- * DESCRIPTION: Read from the specified ACPI register
- *
- ******************************************************************************/
-acpi_status
-acpi_hw_register_read(u32 register_id, u32 * return_value)
-{
- u32 value1 = 0;
- u32 value2 = 0;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(hw_register_read);
-
- switch (register_id) {
- case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_event_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_event_block);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_xpm1a_enable);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_read(&value2, &acpi_gbl_xpm1b_enable);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm1a_control_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- status = acpi_read(&value2, &acpi_gbl_FADT.xpm1b_control_block);
- value1 |= value2;
- break;
-
- case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm2_control_block);
- break;
-
- case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
-
- status = acpi_read(&value1, &acpi_gbl_FADT.xpm_timer_block);
- break;
-
- case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
-
- status =
- acpi_os_read_port(acpi_gbl_FADT.smi_command, &value1, 8);
- break;
-
- default:
- ACPI_ERROR((AE_INFO, "Unknown Register ID: %X", register_id));
- status = AE_BAD_PARAMETER;
- break;
- }
-
- exit:
-
- if (ACPI_SUCCESS(status)) {
- *return_value = value1;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_hw_register_write
- *
- * PARAMETERS: register_id - ACPI Register ID
- * Value - The value to write
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to the specified ACPI register
- *
- * NOTE: In accordance with the ACPI specification, this function automatically
- * preserves the value of the following bits, meaning that these bits cannot be
- * changed via this interface:
- *
- * PM1_CONTROL[0] = SCI_EN
- * PM1_CONTROL[9]
- * PM1_STATUS[11]
- *
- * ACPI References:
- * 1) Hardware Ignored Bits: When software writes to a register with ignored
- * bit fields, it preserves the ignored bit fields
- * 2) SCI_EN: OSPM always preserves this bit position
- *
- ******************************************************************************/
-
-acpi_status acpi_hw_register_write(u32 register_id, u32 value)
-{
- acpi_status status;
- u32 read_value;
-
- ACPI_FUNCTION_TRACE(hw_register_write);
-
- switch (register_id) {
- case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
-
- /* Perform a read first to preserve certain bits (per ACPI spec) */
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS,
- &read_value);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Insert the bits to be preserved */
-
- ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS,
- read_value);
-
- /* Now we can write the data */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1a_event_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1b_event_block);
- break;
-
- case ACPI_REGISTER_PM1_ENABLE: /* 16-bit access */
-
- status = acpi_write(value, &acpi_gbl_xpm1a_enable);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* PM1B is optional */
-
- status = acpi_write(value, &acpi_gbl_xpm1b_enable);
- break;
-
- case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
-
- /*
- * Perform a read first to preserve certain bits (per ACPI spec)
- */
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
- &read_value);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Insert the bits to be preserved */
-
- ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS,
- read_value);
-
- /* Now we can write the data */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
- break;
-
- case ACPI_REGISTER_PM1A_CONTROL: /* 16-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1a_control_block);
- break;
-
- case ACPI_REGISTER_PM1B_CONTROL: /* 16-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm1b_control_block);
- break;
-
- case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block);
- break;
-
- case ACPI_REGISTER_PM_TIMER: /* 32-bit access */
-
- status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block);
- break;
-
- case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */
-
- /* SMI_CMD is currently always in IO space */
-
- status =
- acpi_os_write_port(acpi_gbl_FADT.smi_command, value, 8);
- break;
-
- default:
- status = AE_BAD_PARAMETER;
- break;
- }
-
- exit:
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-
-/******************************************************************************
- *
- * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwsleep")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_firmware_waking_vector
- *
- * PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
- * entry point.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
- *
- ******************************************************************************/
-acpi_status
-acpi_set_firmware_waking_vector(u32 physical_address)
-{
- ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
-
-
- /*
- * According to the ACPI specification 2.0c and later, the 64-bit
- * waking vector should be cleared and the 32-bit waking vector should
- * be used, unless we want the wake-up code to be called by the BIOS in
- * Protected Mode. Some systems (for example HP dv5-1004nr) are known
- * to fail to resume if the 64-bit vector is used.
- */
-
- /* Set the 32-bit vector */
-
- acpi_gbl_FACS->firmware_waking_vector = physical_address;
-
- /* Clear the 64-bit vector if it exists */
-
- if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
- acpi_gbl_FACS->xfirmware_waking_vector = 0;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_firmware_waking_vector64
- *
- * PARAMETERS: physical_address - 64-bit physical address of ACPI protected
- * mode entry point.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
- * it exists in the table.
- *
- ******************************************************************************/
-acpi_status
-acpi_set_firmware_waking_vector64(u64 physical_address)
-{
- ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
-
-
- /* Determine if the 64-bit vector actually exists */
-
- if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Clear 32-bit vector, set the 64-bit X_ vector */
-
- acpi_gbl_FACS->firmware_waking_vector = 0;
- acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enter_sleep_state_prep
- *
- * PARAMETERS: sleep_state - Which sleep state to enter
- *
- * RETURN: Status
- *
- * DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231)
- * This function must execute with interrupts enabled.
- * We break sleeping into 2 stages so that OSPM can handle
- * various OS-specific tasks between the two steps.
- *
- ******************************************************************************/
-acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
-{
- acpi_status status;
- struct acpi_object_list arg_list;
- union acpi_object arg;
-
- ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
-
- /*
- * _PSW methods could be run here to enable wake-on keyboard, LAN, etc.
- */
- status = acpi_get_sleep_type_data(sleep_state,
- &acpi_gbl_sleep_type_a,
- &acpi_gbl_sleep_type_b);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Setup parameter object */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
-
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = sleep_state;
-
- /* Run the _PTS method */
-
- status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- return_ACPI_STATUS(status);
- }
-
- /* Setup the argument to _SST */
-
- switch (sleep_state) {
- case ACPI_STATE_S0:
- arg.integer.value = ACPI_SST_WORKING;
- break;
-
- case ACPI_STATE_S1:
- case ACPI_STATE_S2:
- case ACPI_STATE_S3:
- arg.integer.value = ACPI_SST_SLEEPING;
- break;
-
- case ACPI_STATE_S4:
- arg.integer.value = ACPI_SST_SLEEP_CONTEXT;
- break;
-
- default:
- arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */
- break;
- }
-
- /*
- * Set the system indicators to show the desired sleep state.
- * _SST is an optional method (return no error if not found)
- */
- status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While executing method _SST"));
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enter_sleep_state
- *
- * PARAMETERS: sleep_state - Which sleep state to enter
- *
- * RETURN: Status
- *
- * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
-{
- u32 PM1Acontrol;
- u32 PM1Bcontrol;
- struct acpi_bit_register_info *sleep_type_reg_info;
- struct acpi_bit_register_info *sleep_enable_reg_info;
- u32 in_value;
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
-
- if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
- (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
- ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X",
- acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b));
- return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
- }
-
- sleep_type_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A);
- sleep_enable_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
-
- /* Clear wake status */
-
- status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Clear all fixed and general purpose status bits */
-
- status = acpi_hw_clear_acpi_status();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * 1) Disable/Clear all GPEs
- * 2) Enable all wakeup GPEs
- */
- status = acpi_hw_disable_all_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- acpi_gbl_system_awake_and_running = FALSE;
-
- status = acpi_hw_enable_all_wakeup_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Execute the _GTS method */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = sleep_state;
-
- status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- return_ACPI_STATUS(status);
- }
-
- /* Get current value of PM1A control */
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "Entering sleep state [S%d]\n", sleep_state));
-
- /* Clear SLP_EN and SLP_TYP fields */
-
- PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
- sleep_enable_reg_info->access_bit_mask);
- PM1Bcontrol = PM1Acontrol;
-
- /* Insert SLP_TYP bits */
-
- PM1Acontrol |=
- (acpi_gbl_sleep_type_a << sleep_type_reg_info->bit_position);
- PM1Bcontrol |=
- (acpi_gbl_sleep_type_b << sleep_type_reg_info->bit_position);
-
- /*
- * We split the writes of SLP_TYP and SLP_EN to workaround
- * poorly implemented hardware.
- */
-
- /* Write #1: fill in SLP_TYP data */
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
- PM1Acontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
- PM1Bcontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Insert SLP_ENABLE bit */
-
- PM1Acontrol |= sleep_enable_reg_info->access_bit_mask;
- PM1Bcontrol |= sleep_enable_reg_info->access_bit_mask;
-
- /* Write #2: SLP_TYP + SLP_EN */
-
- ACPI_FLUSH_CPU_CACHE();
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
- PM1Acontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
- PM1Bcontrol);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (sleep_state > ACPI_STATE_S3) {
- /*
- * We wanted to sleep > S3, but it didn't happen (by virtue of the
- * fact that we are still executing!)
- *
- * Wait ten seconds, then try again. This is to get S4/S5 to work on
- * all machines.
- *
- * We wait so long to allow chipsets that poll this reg very slowly to
- * still read the right value. Ideally, this block would go
- * away entirely.
- */
- acpi_os_stall(10000000);
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
- sleep_enable_reg_info->
- access_bit_mask);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Wait until we enter sleep state */
-
- do {
- status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS,
- &in_value);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Spin until we wake */
-
- } while (!in_value);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enter_sleep_state_s4bios
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform a S4 bios request.
- * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
-{
- u32 in_value;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
-
- status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_hw_clear_acpi_status();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * 1) Disable/Clear all GPEs
- * 2) Enable all wakeup GPEs
- */
- status = acpi_hw_disable_all_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- acpi_gbl_system_awake_and_running = FALSE;
-
- status = acpi_hw_enable_all_wakeup_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_FLUSH_CPU_CACHE();
-
- status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
- (u32) acpi_gbl_FADT.S4bios_request, 8);
-
- do {
- acpi_os_stall(1000);
- status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- } while (!in_value);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_leave_sleep_state_prep
- *
- * PARAMETERS: sleep_state - Which sleep state we are exiting
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
- * sleep.
- * Called with interrupts DISABLED.
- *
- ******************************************************************************/
-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
-{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
- struct acpi_bit_register_info *sleep_type_reg_info;
- struct acpi_bit_register_info *sleep_enable_reg_info;
- u32 PM1Acontrol;
- u32 PM1Bcontrol;
-
- ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
-
- /*
- * Set SLP_TYPE and SLP_EN to state S0.
- * This is unclear from the ACPI Spec, but it is required
- * by some machines.
- */
- status = acpi_get_sleep_type_data(ACPI_STATE_S0,
- &acpi_gbl_sleep_type_a,
- &acpi_gbl_sleep_type_b);
- if (ACPI_SUCCESS(status)) {
- sleep_type_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE_A);
- sleep_enable_reg_info =
- acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
-
- /* Get current value of PM1A control */
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
- &PM1Acontrol);
- if (ACPI_SUCCESS(status)) {
-
- /* Clear SLP_EN and SLP_TYP fields */
-
- PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask |
- sleep_enable_reg_info->
- access_bit_mask);
- PM1Bcontrol = PM1Acontrol;
-
- /* Insert SLP_TYP bits */
-
- PM1Acontrol |=
- (acpi_gbl_sleep_type_a << sleep_type_reg_info->
- bit_position);
- PM1Bcontrol |=
- (acpi_gbl_sleep_type_b << sleep_type_reg_info->
- bit_position);
-
- /* Just ignore any errors */
-
- (void)acpi_hw_register_write(ACPI_REGISTER_PM1A_CONTROL,
- PM1Acontrol);
- (void)acpi_hw_register_write(ACPI_REGISTER_PM1B_CONTROL,
- PM1Bcontrol);
- }
- }
-
- /* Execute the _BFS method */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = sleep_state;
-
- status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_leave_sleep_state
- *
- * PARAMETERS: sleep_state - Which sleep state we just exited
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
- * Called with interrupts ENABLED.
- *
- ******************************************************************************/
-acpi_status acpi_leave_sleep_state(u8 sleep_state)
-{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
-
- /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
-
- acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
-
- /* Setup parameter object */
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
-
- /* Ignore any errors from these methods */
-
- arg.integer.value = ACPI_SST_WAKING;
- status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
- }
-
- /*
- * GPEs must be enabled before _WAK is called as GPEs
- * might get fired there
- *
- * Restore the GPEs:
- * 1) Disable/Clear all GPEs
- * 2) Enable all runtime GPEs
- */
- status = acpi_hw_disable_all_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- status = acpi_hw_enable_all_runtime_gpes();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- arg.integer.value = sleep_state;
- status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
- }
- /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
-
- /*
- * Some BIOSes assume that WAK_STS will be cleared on resume and use
- * it to determine whether the system is rebooting or resuming. Clear
- * it for compatibility.
- */
- acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1);
-
- acpi_gbl_system_awake_and_running = TRUE;
-
- /* Enable power button */
-
- (void)
- acpi_set_register(acpi_gbl_fixed_event_info
- [ACPI_EVENT_POWER_BUTTON].enable_register_id, 1);
-
- (void)
- acpi_set_register(acpi_gbl_fixed_event_info
- [ACPI_EVENT_POWER_BUTTON].status_register_id, 1);
-
- arg.integer.value = ACPI_SST_WORKING;
- status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)
+++ /dev/null
-
-/******************************************************************************
- *
- * Name: hwtimer.c - ACPI Power Management Timer Interface
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwtimer")
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_timer_resolution
- *
- * PARAMETERS: Resolution - Where the resolution is returned
- *
- * RETURN: Status and timer resolution
- *
- * DESCRIPTION: Obtains resolution of the ACPI PM Timer (24 or 32 bits).
- *
- ******************************************************************************/
-acpi_status acpi_get_timer_resolution(u32 * resolution)
-{
- ACPI_FUNCTION_TRACE(acpi_get_timer_resolution);
-
- if (!resolution) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) {
- *resolution = 24;
- } else {
- *resolution = 32;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_timer
- *
- * PARAMETERS: Ticks - Where the timer value is returned
- *
- * RETURN: Status and current timer value (ticks)
- *
- * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks).
- *
- ******************************************************************************/
-acpi_status acpi_get_timer(u32 * ticks)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_get_timer);
-
- if (!ticks) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status =
- acpi_hw_low_level_read(32, ticks, &acpi_gbl_FADT.xpm_timer_block);
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_timer)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_timer_duration
- *
- * PARAMETERS: start_ticks - Starting timestamp
- * end_ticks - End timestamp
- * time_elapsed - Where the elapsed time is returned
- *
- * RETURN: Status and time_elapsed
- *
- * DESCRIPTION: Computes the time elapsed (in microseconds) between two
- * PM Timer time stamps, taking into account the possibility of
- * rollovers, the timer resolution, and timer frequency.
- *
- * The PM Timer's clock ticks at roughly 3.6 times per
- * _microsecond_, and its clock continues through Cx state
- * transitions (unlike many CPU timestamp counters) -- making it
- * a versatile and accurate timer.
- *
- * Note that this function accommodates only a single timer
- * rollover. Thus for 24-bit timers, this function should only
- * be used for calculating durations less than ~4.6 seconds
- * (~20 minutes for 32-bit timers) -- calculations below:
- *
- * 2**24 Ticks / 3,600,000 Ticks/Sec = 4.66 sec
- * 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes
- *
- ******************************************************************************/
-acpi_status
-acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
-{
- acpi_status status;
- u32 delta_ticks;
- acpi_integer quotient;
-
- ACPI_FUNCTION_TRACE(acpi_get_timer_duration);
-
- if (!time_elapsed) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Compute Tick Delta:
- * Handle (max one) timer rollovers on 24-bit versus 32-bit timers.
- */
- if (start_ticks < end_ticks) {
- delta_ticks = end_ticks - start_ticks;
- } else if (start_ticks > end_ticks) {
- if ((acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) == 0) {
-
- /* 24-bit Timer */
-
- delta_ticks =
- (((0x00FFFFFF - start_ticks) +
- end_ticks) & 0x00FFFFFF);
- } else {
- /* 32-bit Timer */
-
- delta_ticks = (0xFFFFFFFF - start_ticks) + end_ticks;
- }
- } else { /* start_ticks == end_ticks */
-
- *time_elapsed = 0;
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Compute Duration (Requires a 64-bit multiply and divide):
- *
- * time_elapsed = (delta_ticks * 1000000) / PM_TIMER_FREQUENCY;
- */
- status = acpi_ut_short_divide(((u64) delta_ticks) * 1000000,
- PM_TIMER_FREQUENCY, "ient, NULL);
-
- *time_elapsed = (u32) quotient;
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_timer_duration)
+++ /dev/null
-
-/******************************************************************************
- *
- * Module Name: hwxface - Public ACPICA hardware interfaces
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_HARDWARE
-ACPI_MODULE_NAME("hwxface")
-
-/******************************************************************************
- *
- * FUNCTION: acpi_reset
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Set reset register in memory or IO space. Note: Does not
- * support reset register in PCI config space, this must be
- * handled separately.
- *
- ******************************************************************************/
-acpi_status acpi_reset(void)
-{
- struct acpi_generic_address *reset_reg;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_reset);
-
- reset_reg = &acpi_gbl_FADT.reset_register;
-
- /* Check if the reset register is supported */
-
- if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
- !reset_reg->address) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- /* Write the reset value to the reset register */
-
- status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_reset)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_read
- *
- * PARAMETERS: Value - Where the value is returned
- * Reg - GAS register structure
- *
- * RETURN: Status
- *
- * DESCRIPTION: Read from either memory or IO space.
- *
- ******************************************************************************/
-acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg)
-{
- u32 width;
- u64 address;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(acpi_read);
-
- /*
- * Must have a valid pointer to a GAS structure, and
- * a non-zero address within. However, don't return an error
- * because the PM1A/B code must not fail if B isn't present.
- */
- if (!reg) {
- return (AE_OK);
- }
-
- /* Get a local copy of the address. Handles possible alignment issues */
-
- ACPI_MOVE_64_TO_64(&address, ®->address);
- if (!address) {
- return (AE_OK);
- }
-
- /* Supported widths are 8/16/32 */
-
- width = reg->bit_width;
- if ((width != 8) && (width != 16) && (width != 32)) {
- return (AE_SUPPORT);
- }
-
- /* Initialize entire 32-bit return value to zero */
-
- *value = 0;
-
- /*
- * Two address spaces supported: Memory or IO.
- * PCI_Config is not supported here because the GAS struct is insufficient
- */
- switch (reg->space_id) {
- case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-
- status = acpi_os_read_memory((acpi_physical_address) address,
- value, width);
- break;
-
- case ACPI_ADR_SPACE_SYSTEM_IO:
-
- status =
- acpi_os_read_port((acpi_io_address) address, value, width);
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Unsupported address space: %X", reg->space_id));
- return (AE_BAD_PARAMETER);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n",
- *value, width, ACPI_FORMAT_UINT64(address),
- acpi_ut_get_region_name(reg->space_id)));
-
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_read)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_write
- *
- * PARAMETERS: Value - To be written
- * Reg - GAS register structure
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to either memory or IO space.
- *
- ******************************************************************************/
-acpi_status acpi_write(u32 value, struct acpi_generic_address *reg)
-{
- u32 width;
- u64 address;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(acpi_write);
-
- /*
- * Must have a valid pointer to a GAS structure, and
- * a non-zero address within. However, don't return an error
- * because the PM1A/B code must not fail if B isn't present.
- */
- if (!reg) {
- return (AE_OK);
- }
-
- /* Get a local copy of the address. Handles possible alignment issues */
-
- ACPI_MOVE_64_TO_64(&address, ®->address);
- if (!address) {
- return (AE_OK);
- }
-
- /* Supported widths are 8/16/32 */
-
- width = reg->bit_width;
- if ((width != 8) && (width != 16) && (width != 32)) {
- return (AE_SUPPORT);
- }
-
- /*
- * Two address spaces supported: Memory or IO.
- * PCI_Config is not supported here because the GAS struct is insufficient
- */
- switch (reg->space_id) {
- case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-
- status = acpi_os_write_memory((acpi_physical_address) address,
- value, width);
- break;
-
- case ACPI_ADR_SPACE_SYSTEM_IO:
-
- status = acpi_os_write_port((acpi_io_address) address, value,
- width);
- break;
-
- default:
- ACPI_ERROR((AE_INFO,
- "Unsupported address space: %X", reg->space_id));
- return (AE_BAD_PARAMETER);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n",
- value, width, ACPI_FORMAT_UINT64(address),
- acpi_ut_get_region_name(reg->space_id)));
-
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_write)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_register_unlocked
- *
- * PARAMETERS: register_id - ID of ACPI bit_register to access
- * return_value - Value that was read from the register
- *
- * RETURN: Status and the value read from specified Register. Value
- * returned is normalized to bit0 (is shifted all the way right)
- *
- * DESCRIPTION: ACPI bit_register read function. Does not acquire the HW lock.
- *
- ******************************************************************************/
-acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value)
-{
- u32 register_value = 0;
- struct acpi_bit_register_info *bit_reg_info;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_get_register_unlocked);
-
- /* Get the info structure corresponding to the requested ACPI Register */
-
- bit_reg_info = acpi_hw_get_bit_register_info(register_id);
- if (!bit_reg_info) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Read from the register */
-
- status = acpi_hw_register_read(bit_reg_info->parent_register,
- ®ister_value);
-
- if (ACPI_SUCCESS(status)) {
-
- /* Normalize the value that was read */
-
- register_value =
- ((register_value & bit_reg_info->access_bit_mask)
- >> bit_reg_info->bit_position);
-
- *return_value = register_value;
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO, "Read value %8.8X register %X\n",
- register_value,
- bit_reg_info->parent_register));
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_register_unlocked)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_register
- *
- * PARAMETERS: register_id - ID of ACPI bit_register to access
- * return_value - Value that was read from the register
- *
- * RETURN: Status and the value read from specified Register. Value
- * returned is normalized to bit0 (is shifted all the way right)
- *
- * DESCRIPTION: ACPI bit_register read function.
- *
- ******************************************************************************/
-acpi_status acpi_get_register(u32 register_id, u32 *return_value)
-{
- acpi_status status;
- acpi_cpu_flags flags;
-
- flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
- status = acpi_get_register_unlocked(register_id, return_value);
- acpi_os_release_lock(acpi_gbl_hardware_lock, flags);
-
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_register)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_register
- *
- * PARAMETERS: register_id - ID of ACPI bit_register to access
- * Value - (only used on write) value to write to the
- * Register, NOT pre-normalized to the bit pos
- *
- * RETURN: Status
- *
- * DESCRIPTION: ACPI Bit Register write function.
- *
- ******************************************************************************/
-acpi_status acpi_set_register(u32 register_id, u32 value)
-{
- u32 register_value = 0;
- struct acpi_bit_register_info *bit_reg_info;
- acpi_status status;
- acpi_cpu_flags lock_flags;
-
- ACPI_FUNCTION_TRACE_U32(acpi_set_register, register_id);
-
- /* Get the info structure corresponding to the requested ACPI Register */
-
- bit_reg_info = acpi_hw_get_bit_register_info(register_id);
- if (!bit_reg_info) {
- ACPI_ERROR((AE_INFO, "Bad ACPI HW RegisterId: %X",
- register_id));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
-
- /* Always do a register read first so we can insert the new bits */
-
- status = acpi_hw_register_read(bit_reg_info->parent_register,
- ®ister_value);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /*
- * Decode the Register ID
- * Register ID = [Register block ID] | [bit ID]
- *
- * Check bit ID to fine locate Register offset.
- * Check Mask to determine Register offset, and then read-write.
- */
- switch (bit_reg_info->parent_register) {
- case ACPI_REGISTER_PM1_STATUS:
-
- /*
- * Status Registers are different from the rest. Clear by
- * writing 1, and writing 0 has no effect. So, the only relevant
- * information is the single bit we're interested in, all others should
- * be written as 0 so they will be left unchanged.
- */
- value = ACPI_REGISTER_PREPARE_BITS(value,
- bit_reg_info->bit_position,
- bit_reg_info->
- access_bit_mask);
- if (value) {
- status =
- acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
- (u16) value);
- register_value = 0;
- }
- break;
-
- case ACPI_REGISTER_PM1_ENABLE:
-
- ACPI_REGISTER_INSERT_VALUE(register_value,
- bit_reg_info->bit_position,
- bit_reg_info->access_bit_mask,
- value);
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_ENABLE,
- (u16) register_value);
- break;
-
- case ACPI_REGISTER_PM1_CONTROL:
-
- /*
- * Write the PM1 Control register.
- * Note that at this level, the fact that there are actually TWO
- * registers (A and B - and B may not exist) is abstracted.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_IO, "PM1 control: Read %X\n",
- register_value));
-
- ACPI_REGISTER_INSERT_VALUE(register_value,
- bit_reg_info->bit_position,
- bit_reg_info->access_bit_mask,
- value);
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
- (u16) register_value);
- break;
-
- case ACPI_REGISTER_PM2_CONTROL:
-
- status = acpi_hw_register_read(ACPI_REGISTER_PM2_CONTROL,
- ®ister_value);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "PM2 control: Read %X from %8.8X%8.8X\n",
- register_value,
- ACPI_FORMAT_UINT64(acpi_gbl_FADT.
- xpm2_control_block.
- address)));
-
- ACPI_REGISTER_INSERT_VALUE(register_value,
- bit_reg_info->bit_position,
- bit_reg_info->access_bit_mask,
- value);
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "About to write %4.4X to %8.8X%8.8X\n",
- register_value,
- ACPI_FORMAT_UINT64(acpi_gbl_FADT.
- xpm2_control_block.
- address)));
-
- status = acpi_hw_register_write(ACPI_REGISTER_PM2_CONTROL,
- (u8) (register_value));
- break;
-
- default:
- break;
- }
-
- unlock_and_exit:
-
- acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
-
- /* Normalize the value that was read */
-
- ACPI_DEBUG_EXEC(register_value =
- ((register_value & bit_reg_info->access_bit_mask) >>
- bit_reg_info->bit_position));
-
- ACPI_DEBUG_PRINT((ACPI_DB_IO,
- "Set bits: %8.8X actual %8.8X register %X\n", value,
- register_value, bit_reg_info->parent_register));
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_register)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_sleep_type_data
- *
- * PARAMETERS: sleep_state - Numeric sleep state
- * *sleep_type_a - Where SLP_TYPa is returned
- * *sleep_type_b - Where SLP_TYPb is returned
- *
- * RETURN: Status - ACPI status
- *
- * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep
- * state.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
-{
- acpi_status status = AE_OK;
- struct acpi_evaluate_info *info;
-
- ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data);
-
- /* Validate parameters */
-
- if ((sleep_state > ACPI_S_STATES_MAX) || !sleep_type_a || !sleep_type_b) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Allocate the evaluation information block */
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- info->pathname =
- ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]);
-
- /* Evaluate the namespace object containing the values for this state */
-
- status = acpi_ns_evaluate(info);
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "%s while evaluating SleepState [%s]\n",
- acpi_format_exception(status),
- info->pathname));
-
- goto cleanup;
- }
-
- /* Must have a return object */
-
- if (!info->return_object) {
- ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]",
- info->pathname));
- status = AE_NOT_EXIST;
- }
-
- /* It must be of type Package */
-
- else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) {
- ACPI_ERROR((AE_INFO,
- "Sleep State return object is not a Package"));
- status = AE_AML_OPERAND_TYPE;
- }
-
- /*
- * The package must have at least two elements. NOTE (March 2005): This
- * goes against the current ACPI spec which defines this object as a
- * package with one encoded DWORD element. However, existing practice
- * by BIOS vendors seems to be to have 2 or more elements, at least
- * one per sleep type (A/B).
- */
- else if (info->return_object->package.count < 2) {
- ACPI_ERROR((AE_INFO,
- "Sleep State return package does not have at least two elements"));
- status = AE_AML_NO_OPERAND;
- }
-
- /* The first two elements must both be of type Integer */
-
- else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0])
- != ACPI_TYPE_INTEGER) ||
- (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1])
- != ACPI_TYPE_INTEGER)) {
- ACPI_ERROR((AE_INFO,
- "Sleep State return package elements are not both Integers (%s, %s)",
- acpi_ut_get_object_type_name(info->return_object->
- package.elements[0]),
- acpi_ut_get_object_type_name(info->return_object->
- package.elements[1])));
- status = AE_AML_OPERAND_TYPE;
- } else {
- /* Valid _Sx_ package size, type, and value */
-
- *sleep_type_a = (u8)
- (info->return_object->package.elements[0])->integer.value;
- *sleep_type_b = (u8)
- (info->return_object->package.elements[1])->integer.value;
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While evaluating SleepState [%s], bad Sleep object %p type %s",
- info->pathname, info->return_object,
- acpi_ut_get_object_type_name(info->
- return_object)));
- }
-
- acpi_ut_remove_reference(info->return_object);
-
- cleanup:
- ACPI_FREE(info);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data)
--- /dev/null
+/*
+ * sleep.c - ACPI sleep support.
+ *
+ * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
+ * Copyright (c) 2004 David Shaohua Li <shaohua.li@intel.com>
+ * Copyright (c) 2000-2003 Patrick Mochel
+ * Copyright (c) 2003 Open Source Development Lab
+ *
+ * This file is released under the GPLv2.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/dmi.h>
+#include <linux/device.h>
+#include <linux/suspend.h>
+#include <linux/reboot.h>
+
+#include <asm/io.h>
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include "sleep.h"
+
+u8 sleep_states[ACPI_S_STATE_COUNT];
+
+static void acpi_sleep_tts_switch(u32 acpi_state)
+{
+ union acpi_object in_arg = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &in_arg };
+ acpi_status status = AE_OK;
+
+ in_arg.integer.value = acpi_state;
+ status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ /*
+ * OS can't evaluate the _TTS object correctly. Some warning
+ * message will be printed. But it won't break anything.
+ */
+ printk(KERN_NOTICE "Failure in evaluating _TTS object\n");
+ }
+}
+
+static int tts_notify_reboot(struct notifier_block *this,
+ unsigned long code, void *x)
+{
+ acpi_sleep_tts_switch(ACPI_STATE_S5);
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block tts_notifier = {
+ .notifier_call = tts_notify_reboot,
+ .next = NULL,
+ .priority = 0,
+};
+
+static int acpi_sleep_prepare(u32 acpi_state)
+{
+#ifdef CONFIG_ACPI_SLEEP
+ /* do we have a wakeup address for S2 and S3? */
+ if (acpi_state == ACPI_STATE_S3) {
+ if (!acpi_wakeup_address) {
+ return -EFAULT;
+ }
+ acpi_set_firmware_waking_vector(
+ (acpi_physical_address)acpi_wakeup_address);
+
+ }
+ ACPI_FLUSH_CPU_CACHE();
+ acpi_enable_wakeup_device_prep(acpi_state);
+#endif
+ printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
+ acpi_state);
+ acpi_enter_sleep_state_prep(acpi_state);
+ return 0;
+}
+
+#ifdef CONFIG_ACPI_SLEEP
+static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+/*
+ * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
+ * user to request that behavior by using the 'acpi_old_suspend_ordering'
+ * kernel command line option that causes the following variable to be set.
+ */
+static bool old_suspend_ordering;
+
+void __init acpi_old_suspend_ordering(void)
+{
+ old_suspend_ordering = true;
+}
+
+/*
+ * According to the ACPI specification the BIOS should make sure that ACPI is
+ * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still,
+ * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
+ * on such systems during resume. Unfortunately that doesn't help in
+ * particularly pathological cases in which SCI_EN has to be set directly on
+ * resume, although the specification states very clearly that this flag is
+ * owned by the hardware. The set_sci_en_on_resume variable will be set in such
+ * cases.
+ */
+static bool set_sci_en_on_resume;
+
+/**
+ * acpi_pm_disable_gpes - Disable the GPEs.
+ */
+static int acpi_pm_disable_gpes(void)
+{
+ acpi_disable_all_gpes();
+ return 0;
+}
+
+/**
+ * __acpi_pm_prepare - Prepare the platform to enter the target state.
+ *
+ * If necessary, set the firmware waking vector and do arch-specific
+ * nastiness to get the wakeup code to the waking vector.
+ */
+static int __acpi_pm_prepare(void)
+{
+ int error = acpi_sleep_prepare(acpi_target_sleep_state);
+
+ if (error)
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ return error;
+}
+
+/**
+ * acpi_pm_prepare - Prepare the platform to enter the target sleep
+ * state and disable the GPEs.
+ */
+static int acpi_pm_prepare(void)
+{
+ int error = __acpi_pm_prepare();
+
+ if (!error)
+ acpi_disable_all_gpes();
+ return error;
+}
+
+/**
+ * acpi_pm_finish - Instruct the platform to leave a sleep state.
+ *
+ * This is called after we wake back up (or if entering the sleep state
+ * failed).
+ */
+static void acpi_pm_finish(void)
+{
+ u32 acpi_state = acpi_target_sleep_state;
+
+ if (acpi_state == ACPI_STATE_S0)
+ return;
+
+ printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n",
+ acpi_state);
+ acpi_disable_wakeup_device(acpi_state);
+ acpi_leave_sleep_state(acpi_state);
+
+ /* reset firmware waking vector */
+ acpi_set_firmware_waking_vector((acpi_physical_address) 0);
+
+ acpi_target_sleep_state = ACPI_STATE_S0;
+}
+
+/**
+ * acpi_pm_end - Finish up suspend sequence.
+ */
+static void acpi_pm_end(void)
+{
+ /*
+ * This is necessary in case acpi_pm_finish() is not called during a
+ * failing transition to a sleep state.
+ */
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
+}
+#else /* !CONFIG_ACPI_SLEEP */
+#define acpi_target_sleep_state ACPI_STATE_S0
+#endif /* CONFIG_ACPI_SLEEP */
+
+#ifdef CONFIG_SUSPEND
+extern void do_suspend_lowlevel(void);
+
+static u32 acpi_suspend_states[] = {
+ [PM_SUSPEND_ON] = ACPI_STATE_S0,
+ [PM_SUSPEND_STANDBY] = ACPI_STATE_S1,
+ [PM_SUSPEND_MEM] = ACPI_STATE_S3,
+ [PM_SUSPEND_MAX] = ACPI_STATE_S5
+};
+
+/**
+ * acpi_suspend_begin - Set the target system sleep state to the state
+ * associated with given @pm_state, if supported.
+ */
+static int acpi_suspend_begin(suspend_state_t pm_state)
+{
+ u32 acpi_state = acpi_suspend_states[pm_state];
+ int error = 0;
+
+ if (sleep_states[acpi_state]) {
+ acpi_target_sleep_state = acpi_state;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
+ } else {
+ printk(KERN_ERR "ACPI does not support this state: %d\n",
+ pm_state);
+ error = -ENOSYS;
+ }
+ return error;
+}
+
+/**
+ * acpi_suspend_enter - Actually enter a sleep state.
+ * @pm_state: ignored
+ *
+ * Flush caches and go to sleep. For STR we have to call arch-specific
+ * assembly, which in turn call acpi_enter_sleep_state().
+ * It's unfortunate, but it works. Please fix if you're feeling frisky.
+ */
+static int acpi_suspend_enter(suspend_state_t pm_state)
+{
+ acpi_status status = AE_OK;
+ unsigned long flags = 0;
+ u32 acpi_state = acpi_target_sleep_state;
+
+ ACPI_FLUSH_CPU_CACHE();
+
+ /* Do arch specific saving of state. */
+ if (acpi_state == ACPI_STATE_S3) {
+ int error = acpi_save_state_mem();
+
+ if (error)
+ return error;
+ }
+
+ local_irq_save(flags);
+ acpi_enable_wakeup_device(acpi_state);
+ switch (acpi_state) {
+ case ACPI_STATE_S1:
+ barrier();
+ status = acpi_enter_sleep_state(acpi_state);
+ break;
+
+ case ACPI_STATE_S3:
+ do_suspend_lowlevel();
+ break;
+ }
+
+ /* If ACPI is not enabled by the BIOS, we need to enable it here. */
+ if (set_sci_en_on_resume)
+ acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
+ else
+ acpi_enable();
+
+ /* Reprogram control registers and execute _BFS */
+ acpi_leave_sleep_state_prep(acpi_state);
+
+ /* ACPI 3.0 specs (P62) says that it's the responsibility
+ * of the OSPM to clear the status bit [ implying that the
+ * POWER_BUTTON event should not reach userspace ]
+ */
+ if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3))
+ acpi_clear_event(ACPI_EVENT_POWER_BUTTON);
+
+ /*
+ * Disable and clear GPE status before interrupt is enabled. Some GPEs
+ * (like wakeup GPE) haven't handler, this can avoid such GPE misfire.
+ * acpi_leave_sleep_state will reenable specific GPEs later
+ */
+ acpi_disable_all_gpes();
+
+ local_irq_restore(flags);
+ printk(KERN_DEBUG "Back to C!\n");
+
+ /* restore processor state */
+ if (acpi_state == ACPI_STATE_S3)
+ acpi_restore_state_mem();
+
+ return ACPI_SUCCESS(status) ? 0 : -EFAULT;
+}
+
+static int acpi_suspend_state_valid(suspend_state_t pm_state)
+{
+ u32 acpi_state;
+
+ switch (pm_state) {
+ case PM_SUSPEND_ON:
+ case PM_SUSPEND_STANDBY:
+ case PM_SUSPEND_MEM:
+ acpi_state = acpi_suspend_states[pm_state];
+
+ return sleep_states[acpi_state];
+ default:
+ return 0;
+ }
+}
+
+static struct platform_suspend_ops acpi_suspend_ops = {
+ .valid = acpi_suspend_state_valid,
+ .begin = acpi_suspend_begin,
+ .prepare = acpi_pm_prepare,
+ .enter = acpi_suspend_enter,
+ .finish = acpi_pm_finish,
+ .end = acpi_pm_end,
+};
+
+/**
+ * acpi_suspend_begin_old - Set the target system sleep state to the
+ * state associated with given @pm_state, if supported, and
+ * execute the _PTS control method. This function is used if the
+ * pre-ACPI 2.0 suspend ordering has been requested.
+ */
+static int acpi_suspend_begin_old(suspend_state_t pm_state)
+{
+ int error = acpi_suspend_begin(pm_state);
+
+ if (!error)
+ error = __acpi_pm_prepare();
+ return error;
+}
+
+/*
+ * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
+ * been requested.
+ */
+static struct platform_suspend_ops acpi_suspend_ops_old = {
+ .valid = acpi_suspend_state_valid,
+ .begin = acpi_suspend_begin_old,
+ .prepare = acpi_pm_disable_gpes,
+ .enter = acpi_suspend_enter,
+ .finish = acpi_pm_finish,
+ .end = acpi_pm_end,
+ .recover = acpi_pm_finish,
+};
+
+static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
+{
+ old_suspend_ordering = true;
+ return 0;
+}
+
+static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d)
+{
+ set_sci_en_on_resume = true;
+ return 0;
+}
+
+static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
+ {
+ .callback = init_old_suspend_ordering,
+ .ident = "Abit KN9 (nForce4 variant)",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
+ DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
+ },
+ },
+ {
+ .callback = init_old_suspend_ordering,
+ .ident = "HP xw4600 Workstation",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Apple MacBook 1,1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Apple MacMini 1,1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
+ },
+ },
+ {},
+};
+#endif /* CONFIG_SUSPEND */
+
+#ifdef CONFIG_HIBERNATION
+static unsigned long s4_hardware_signature;
+static struct acpi_table_facs *facs;
+static bool nosigcheck;
+
+void __init acpi_no_s4_hw_signature(void)
+{
+ nosigcheck = true;
+}
+
+static int acpi_hibernation_begin(void)
+{
+ acpi_target_sleep_state = ACPI_STATE_S4;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
+ return 0;
+}
+
+static int acpi_hibernation_enter(void)
+{
+ acpi_status status = AE_OK;
+ unsigned long flags = 0;
+
+ ACPI_FLUSH_CPU_CACHE();
+
+ local_irq_save(flags);
+ acpi_enable_wakeup_device(ACPI_STATE_S4);
+ /* This shouldn't return. If it returns, we have a problem */
+ status = acpi_enter_sleep_state(ACPI_STATE_S4);
+ /* Reprogram control registers and execute _BFS */
+ acpi_leave_sleep_state_prep(ACPI_STATE_S4);
+ local_irq_restore(flags);
+
+ return ACPI_SUCCESS(status) ? 0 : -EFAULT;
+}
+
+static void acpi_hibernation_leave(void)
+{
+ /*
+ * If ACPI is not enabled by the BIOS and the boot kernel, we need to
+ * enable it here.
+ */
+ acpi_enable();
+ /* Reprogram control registers and execute _BFS */
+ acpi_leave_sleep_state_prep(ACPI_STATE_S4);
+ /* Check the hardware signature */
+ if (facs && s4_hardware_signature != facs->hardware_signature) {
+ printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
+ "cannot resume!\n");
+ panic("ACPI S4 hardware signature mismatch");
+ }
+}
+
+static void acpi_pm_enable_gpes(void)
+{
+ acpi_enable_all_runtime_gpes();
+}
+
+static struct platform_hibernation_ops acpi_hibernation_ops = {
+ .begin = acpi_hibernation_begin,
+ .end = acpi_pm_end,
+ .pre_snapshot = acpi_pm_prepare,
+ .finish = acpi_pm_finish,
+ .prepare = acpi_pm_prepare,
+ .enter = acpi_hibernation_enter,
+ .leave = acpi_hibernation_leave,
+ .pre_restore = acpi_pm_disable_gpes,
+ .restore_cleanup = acpi_pm_enable_gpes,
+};
+
+/**
+ * acpi_hibernation_begin_old - Set the target system sleep state to
+ * ACPI_STATE_S4 and execute the _PTS control method. This
+ * function is used if the pre-ACPI 2.0 suspend ordering has been
+ * requested.
+ */
+static int acpi_hibernation_begin_old(void)
+{
+ int error;
+ /*
+ * The _TTS object should always be evaluated before the _PTS object.
+ * When the old_suspended_ordering is true, the _PTS object is
+ * evaluated in the acpi_sleep_prepare.
+ */
+ acpi_sleep_tts_switch(ACPI_STATE_S4);
+
+ error = acpi_sleep_prepare(ACPI_STATE_S4);
+
+ if (!error)
+ acpi_target_sleep_state = ACPI_STATE_S4;
+ return error;
+}
+
+/*
+ * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
+ * been requested.
+ */
+static struct platform_hibernation_ops acpi_hibernation_ops_old = {
+ .begin = acpi_hibernation_begin_old,
+ .end = acpi_pm_end,
+ .pre_snapshot = acpi_pm_disable_gpes,
+ .finish = acpi_pm_finish,
+ .prepare = acpi_pm_disable_gpes,
+ .enter = acpi_hibernation_enter,
+ .leave = acpi_hibernation_leave,
+ .pre_restore = acpi_pm_disable_gpes,
+ .restore_cleanup = acpi_pm_enable_gpes,
+ .recover = acpi_pm_finish,
+};
+#endif /* CONFIG_HIBERNATION */
+
+int acpi_suspend(u32 acpi_state)
+{
+ suspend_state_t states[] = {
+ [1] = PM_SUSPEND_STANDBY,
+ [3] = PM_SUSPEND_MEM,
+ [5] = PM_SUSPEND_MAX
+ };
+
+ if (acpi_state < 6 && states[acpi_state])
+ return pm_suspend(states[acpi_state]);
+ if (acpi_state == 4)
+ return hibernate();
+ return -EINVAL;
+}
+
+#ifdef CONFIG_PM_SLEEP
+/**
+ * acpi_pm_device_sleep_state - return preferred power state of ACPI device
+ * in the system sleep state given by %acpi_target_sleep_state
+ * @dev: device to examine; its driver model wakeup flags control
+ * whether it should be able to wake up the system
+ * @d_min_p: used to store the upper limit of allowed states range
+ * Return value: preferred power state of the device on success, -ENODEV on
+ * failure (ie. if there's no 'struct acpi_device' for @dev)
+ *
+ * Find the lowest power (highest number) ACPI device power state that
+ * device @dev can be in while the system is in the sleep state represented
+ * by %acpi_target_sleep_state. If @wake is nonzero, the device should be
+ * able to wake up the system from this sleep state. If @d_min_p is set,
+ * the highest power (lowest number) device power state of @dev allowed
+ * in this system sleep state is stored at the location pointed to by it.
+ *
+ * The caller must ensure that @dev is valid before using this function.
+ * The caller is also responsible for figuring out if the device is
+ * supposed to be able to wake up the system and passing this information
+ * via @wake.
+ */
+
+int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p)
+{
+ acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
+ struct acpi_device *adev;
+ char acpi_method[] = "_SxD";
+ unsigned long long d_min, d_max;
+
+ if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
+ printk(KERN_DEBUG "ACPI handle has no context!\n");
+ return -ENODEV;
+ }
+
+ acpi_method[2] = '0' + acpi_target_sleep_state;
+ /*
+ * If the sleep state is S0, we will return D3, but if the device has
+ * _S0W, we will use the value from _S0W
+ */
+ d_min = ACPI_STATE_D0;
+ d_max = ACPI_STATE_D3;
+
+ /*
+ * If present, _SxD methods return the minimum D-state (highest power
+ * state) we can use for the corresponding S-states. Otherwise, the
+ * minimum D-state is D0 (ACPI 3.x).
+ *
+ * NOTE: We rely on acpi_evaluate_integer() not clobbering the integer
+ * provided -- that's our fault recovery, we ignore retval.
+ */
+ if (acpi_target_sleep_state > ACPI_STATE_S0)
+ acpi_evaluate_integer(handle, acpi_method, NULL, &d_min);
+
+ /*
+ * If _PRW says we can wake up the system from the target sleep state,
+ * the D-state returned by _SxD is sufficient for that (we assume a
+ * wakeup-aware driver if wake is set). Still, if _SxW exists
+ * (ACPI 3.x), it should return the maximum (lowest power) D-state that
+ * can wake the system. _S0W may be valid, too.
+ */
+ if (acpi_target_sleep_state == ACPI_STATE_S0 ||
+ (device_may_wakeup(dev) && adev->wakeup.state.enabled &&
+ adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
+ acpi_status status;
+
+ acpi_method[3] = 'W';
+ status = acpi_evaluate_integer(handle, acpi_method, NULL,
+ &d_max);
+ if (ACPI_FAILURE(status)) {
+ d_max = d_min;
+ } else if (d_max < d_min) {
+ /* Warn the user of the broken DSDT */
+ printk(KERN_WARNING "ACPI: Wrong value from %s\n",
+ acpi_method);
+ /* Sanitize it */
+ d_min = d_max;
+ }
+ }
+
+ if (d_min_p)
+ *d_min_p = d_min;
+ return d_max;
+}
+
+/**
+ * acpi_pm_device_sleep_wake - enable or disable the system wake-up
+ * capability of given device
+ * @dev: device to handle
+ * @enable: 'true' - enable, 'false' - disable the wake-up capability
+ */
+int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
+{
+ acpi_handle handle;
+ struct acpi_device *adev;
+
+ if (!device_may_wakeup(dev))
+ return -EINVAL;
+
+ handle = DEVICE_ACPI_HANDLE(dev);
+ if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
+ printk(KERN_DEBUG "ACPI handle has no context!\n");
+ return -ENODEV;
+ }
+
+ return enable ?
+ acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
+ acpi_disable_wakeup_device_power(adev);
+}
+#endif
+
+static void acpi_power_off_prepare(void)
+{
+ /* Prepare to power off the system */
+ acpi_sleep_prepare(ACPI_STATE_S5);
+ acpi_disable_all_gpes();
+}
+
+static void acpi_power_off(void)
+{
+ /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
+ printk("%s called\n", __func__);
+ local_irq_disable();
+ acpi_enable_wakeup_device(ACPI_STATE_S5);
+ acpi_enter_sleep_state(ACPI_STATE_S5);
+}
+
+int __init acpi_sleep_init(void)
+{
+ acpi_status status;
+ u8 type_a, type_b;
+#ifdef CONFIG_SUSPEND
+ int i = 0;
+
+ dmi_check_system(acpisleep_dmi_table);
+#endif
+
+ if (acpi_disabled)
+ return 0;
+
+ sleep_states[ACPI_STATE_S0] = 1;
+ printk(KERN_INFO PREFIX "(supports S0");
+
+#ifdef CONFIG_SUSPEND
+ for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
+ status = acpi_get_sleep_type_data(i, &type_a, &type_b);
+ if (ACPI_SUCCESS(status)) {
+ sleep_states[i] = 1;
+ printk(" S%d", i);
+ }
+ }
+
+ suspend_set_ops(old_suspend_ordering ?
+ &acpi_suspend_ops_old : &acpi_suspend_ops);
+#endif
+
+#ifdef CONFIG_HIBERNATION
+ status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
+ if (ACPI_SUCCESS(status)) {
+ hibernation_set_ops(old_suspend_ordering ?
+ &acpi_hibernation_ops_old : &acpi_hibernation_ops);
+ sleep_states[ACPI_STATE_S4] = 1;
+ printk(" S4");
+ if (!nosigcheck) {
+ acpi_get_table(ACPI_SIG_FACS, 1,
+ (struct acpi_table_header **)&facs);
+ if (facs)
+ s4_hardware_signature =
+ facs->hardware_signature;
+ }
+ }
+#endif
+ status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
+ if (ACPI_SUCCESS(status)) {
+ sleep_states[ACPI_STATE_S5] = 1;
+ printk(" S5");
+ pm_power_off_prepare = acpi_power_off_prepare;
+ pm_power_off = acpi_power_off;
+ }
+ printk(")\n");
+ /*
+ * Register the tts_notifier to reboot notifier list so that the _TTS
+ * object can also be evaluated when the system enters S5.
+ */
+ register_reboot_notifier(&tts_notifier);
+ return 0;
+}
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \
- nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \
- nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \
- nsparse.o nspredef.o
-
-obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nsaccess - Top-level functions for accessing ACPI namespace
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsaccess")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_root_initialize
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Allocate and initialize the default root named objects
- *
- * MUTEX: Locks namespace for entire execution
- *
- ******************************************************************************/
-acpi_status acpi_ns_root_initialize(void)
-{
- acpi_status status;
- const struct acpi_predefined_names *init_val = NULL;
- struct acpi_namespace_node *new_node;
- union acpi_operand_object *obj_desc;
- acpi_string val = NULL;
-
- ACPI_FUNCTION_TRACE(ns_root_initialize);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * The global root ptr is initially NULL, so a non-NULL value indicates
- * that acpi_ns_root_initialize() has already been called; just return.
- */
- if (acpi_gbl_root_node) {
- status = AE_OK;
- goto unlock_and_exit;
- }
-
- /*
- * Tell the rest of the subsystem that the root is initialized
- * (This is OK because the namespace is locked)
- */
- acpi_gbl_root_node = &acpi_gbl_root_node_struct;
-
- /* Enter the pre-defined names in the name table */
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Entering predefined entries into namespace\n"));
-
- for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
-
- /* _OSI is optional for now, will be permanent later */
-
- if (!ACPI_STRCMP(init_val->name, "_OSI")
- && !acpi_gbl_create_osi_method) {
- continue;
- }
-
- status = acpi_ns_lookup(NULL, init_val->name, init_val->type,
- ACPI_IMODE_LOAD_PASS2,
- ACPI_NS_NO_UPSEARCH, NULL, &new_node);
-
- if (ACPI_FAILURE(status) || (!new_node)) { /* Must be on same line for code converter */
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not create predefined name %s",
- init_val->name));
- }
-
- /*
- * Name entered successfully.
- * If entry in pre_defined_names[] specifies an
- * initial value, create the initial value.
- */
- if (init_val->val) {
- status = acpi_os_predefined_override(init_val, &val);
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not override predefined %s",
- init_val->name));
- }
-
- if (!val) {
- val = init_val->val;
- }
-
- /*
- * Entry requests an initial value, allocate a
- * descriptor for it.
- */
- obj_desc =
- acpi_ut_create_internal_object(init_val->type);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- /*
- * Convert value string from table entry to
- * internal representation. Only types actually
- * used for initial values are implemented here.
- */
- switch (init_val->type) {
- case ACPI_TYPE_METHOD:
- obj_desc->method.param_count =
- (u8) ACPI_TO_INTEGER(val);
- obj_desc->common.flags |= AOPOBJ_DATA_VALID;
-
-#if defined (ACPI_ASL_COMPILER)
-
- /* Save the parameter count for the i_aSL compiler */
-
- new_node->value = obj_desc->method.param_count;
-#else
- /* Mark this as a very SPECIAL method */
-
- obj_desc->method.method_flags =
- AML_METHOD_INTERNAL_ONLY;
- obj_desc->method.implementation =
- acpi_ut_osi_implementation;
-#endif
- break;
-
- case ACPI_TYPE_INTEGER:
-
- obj_desc->integer.value = ACPI_TO_INTEGER(val);
- break;
-
- case ACPI_TYPE_STRING:
-
- /*
- * Build an object around the static string
- */
- obj_desc->string.length =
- (u32) ACPI_STRLEN(val);
- obj_desc->string.pointer = val;
- obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
- break;
-
- case ACPI_TYPE_MUTEX:
-
- obj_desc->mutex.node = new_node;
- obj_desc->mutex.sync_level =
- (u8) (ACPI_TO_INTEGER(val) - 1);
-
- /* Create a mutex */
-
- status =
- acpi_os_create_mutex(&obj_desc->mutex.
- os_mutex);
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(obj_desc);
- goto unlock_and_exit;
- }
-
- /* Special case for ACPI Global Lock */
-
- if (ACPI_STRCMP(init_val->name, "_GL_") == 0) {
- acpi_gbl_global_lock_mutex = obj_desc;
-
- /* Create additional counting semaphore for global lock */
-
- status =
- acpi_os_create_semaphore(1, 0,
- &acpi_gbl_global_lock_semaphore);
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference
- (obj_desc);
- goto unlock_and_exit;
- }
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Unsupported initial type value %X",
- init_val->type));
- acpi_ut_remove_reference(obj_desc);
- obj_desc = NULL;
- continue;
- }
-
- /* Store pointer to value descriptor in the Node */
-
- status = acpi_ns_attach_object(new_node, obj_desc,
- ACPI_GET_OBJECT_TYPE
- (obj_desc));
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- }
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
- /* Save a handle to "_GPE", it is always present */
-
- if (ACPI_SUCCESS(status)) {
- status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH,
- &acpi_gbl_fadt_gpe_device);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_lookup
- *
- * PARAMETERS: scope_info - Current scope info block
- * Pathname - Search pathname, in internal format
- * (as represented in the AML stream)
- * Type - Type associated with name
- * interpreter_mode - IMODE_LOAD_PASS2 => add name if not found
- * Flags - Flags describing the search restrictions
- * walk_state - Current state of the walk
- * return_node - Where the Node is placed (if found
- * or created successfully)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Find or enter the passed name in the name space.
- * Log an error if name not found in Exec mode.
- *
- * MUTEX: Assumes namespace is locked.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_lookup(union acpi_generic_state *scope_info,
- char *pathname,
- acpi_object_type type,
- acpi_interpreter_mode interpreter_mode,
- u32 flags,
- struct acpi_walk_state *walk_state,
- struct acpi_namespace_node **return_node)
-{
- acpi_status status;
- char *path = pathname;
- struct acpi_namespace_node *prefix_node;
- struct acpi_namespace_node *current_node = NULL;
- struct acpi_namespace_node *this_node = NULL;
- u32 num_segments;
- u32 num_carats;
- acpi_name simple_name;
- acpi_object_type type_to_check_for;
- acpi_object_type this_search_type;
- u32 search_parent_flag = ACPI_NS_SEARCH_PARENT;
- u32 local_flags;
-
- ACPI_FUNCTION_TRACE(ns_lookup);
-
- if (!return_node) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT);
- *return_node = ACPI_ENTRY_NOT_FOUND;
- acpi_gbl_ns_lookup_count++;
-
- if (!acpi_gbl_root_node) {
- return_ACPI_STATUS(AE_NO_NAMESPACE);
- }
-
- /*
- * Get the prefix scope.
- * A null scope means use the root scope
- */
- if ((!scope_info) || (!scope_info->scope.node)) {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Null scope prefix, using root node (%p)\n",
- acpi_gbl_root_node));
-
- prefix_node = acpi_gbl_root_node;
- } else {
- prefix_node = scope_info->scope.node;
- if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) !=
- ACPI_DESC_TYPE_NAMED) {
- ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]",
- prefix_node,
- acpi_ut_get_descriptor_name(prefix_node)));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) {
- /*
- * This node might not be a actual "scope" node (such as a
- * Device/Method, etc.) It could be a Package or other object node.
- * Backup up the tree to find the containing scope node.
- */
- while (!acpi_ns_opens_scope(prefix_node->type) &&
- prefix_node->type != ACPI_TYPE_ANY) {
- prefix_node =
- acpi_ns_get_parent_node(prefix_node);
- }
- }
- }
-
- /* Save type TBD: may be no longer necessary */
-
- type_to_check_for = type;
-
- /*
- * Begin examination of the actual pathname
- */
- if (!pathname) {
-
- /* A Null name_path is allowed and refers to the root */
-
- num_segments = 0;
- this_node = acpi_gbl_root_node;
- path = "";
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Null Pathname (Zero segments), Flags=%X\n",
- flags));
- } else {
- /*
- * Name pointer is valid (and must be in internal name format)
- *
- * Check for scope prefixes:
- *
- * As represented in the AML stream, a namepath consists of an
- * optional scope prefix followed by a name segment part.
- *
- * If present, the scope prefix is either a Root Prefix (in
- * which case the name is fully qualified), or one or more
- * Parent Prefixes (in which case the name's scope is relative
- * to the current scope).
- */
- if (*path == (u8) AML_ROOT_PREFIX) {
-
- /* Pathname is fully qualified, start from the root */
-
- this_node = acpi_gbl_root_node;
- search_parent_flag = ACPI_NS_NO_UPSEARCH;
-
- /* Point to name segment part */
-
- path++;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Path is absolute from root [%p]\n",
- this_node));
- } else {
- /* Pathname is relative to current scope, start there */
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Searching relative to prefix scope [%4.4s] (%p)\n",
- acpi_ut_get_node_name(prefix_node),
- prefix_node));
-
- /*
- * Handle multiple Parent Prefixes (carat) by just getting
- * the parent node for each prefix instance.
- */
- this_node = prefix_node;
- num_carats = 0;
- while (*path == (u8) AML_PARENT_PREFIX) {
-
- /* Name is fully qualified, no search rules apply */
-
- search_parent_flag = ACPI_NS_NO_UPSEARCH;
- /*
- * Point past this prefix to the name segment
- * part or the next Parent Prefix
- */
- path++;
-
- /* Backup to the parent node */
-
- num_carats++;
- this_node = acpi_ns_get_parent_node(this_node);
- if (!this_node) {
-
- /* Current scope has no parent scope */
-
- ACPI_ERROR((AE_INFO,
- "ACPI path has too many parent prefixes (^) - reached beyond root node"));
- return_ACPI_STATUS(AE_NOT_FOUND);
- }
- }
-
- if (search_parent_flag == ACPI_NS_NO_UPSEARCH) {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Search scope is [%4.4s], path has %d carat(s)\n",
- acpi_ut_get_node_name
- (this_node), num_carats));
- }
- }
-
- /*
- * Determine the number of ACPI name segments in this pathname.
- *
- * The segment part consists of either:
- * - A Null name segment (0)
- * - A dual_name_prefix followed by two 4-byte name segments
- * - A multi_name_prefix followed by a byte indicating the
- * number of segments and the segments themselves.
- * - A single 4-byte name segment
- *
- * Examine the name prefix opcode, if any, to determine the number of
- * segments.
- */
- switch (*path) {
- case 0:
- /*
- * Null name after a root or parent prefixes. We already
- * have the correct target node and there are no name segments.
- */
- num_segments = 0;
- type = this_node->type;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Prefix-only Pathname (Zero name segments), Flags=%X\n",
- flags));
- break;
-
- case AML_DUAL_NAME_PREFIX:
-
- /* More than one name_seg, search rules do not apply */
-
- search_parent_flag = ACPI_NS_NO_UPSEARCH;
-
- /* Two segments, point to first name segment */
-
- num_segments = 2;
- path++;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Dual Pathname (2 segments, Flags=%X)\n",
- flags));
- break;
-
- case AML_MULTI_NAME_PREFIX_OP:
-
- /* More than one name_seg, search rules do not apply */
-
- search_parent_flag = ACPI_NS_NO_UPSEARCH;
-
- /* Extract segment count, point to first name segment */
-
- path++;
- num_segments = (u32) (u8) * path;
- path++;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Multi Pathname (%d Segments, Flags=%X)\n",
- num_segments, flags));
- break;
-
- default:
- /*
- * Not a Null name, no Dual or Multi prefix, hence there is
- * only one name segment and Pathname is already pointing to it.
- */
- num_segments = 1;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Simple Pathname (1 segment, Flags=%X)\n",
- flags));
- break;
- }
-
- ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path));
- }
-
- /*
- * Search namespace for each segment of the name. Loop through and
- * verify (or add to the namespace) each name segment.
- *
- * The object type is significant only at the last name
- * segment. (We don't care about the types along the path, only
- * the type of the final target object.)
- */
- this_search_type = ACPI_TYPE_ANY;
- current_node = this_node;
- while (num_segments && current_node) {
- num_segments--;
- if (!num_segments) {
- /*
- * This is the last segment, enable typechecking
- */
- this_search_type = type;
-
- /*
- * Only allow automatic parent search (search rules) if the caller
- * requested it AND we have a single, non-fully-qualified name_seg
- */
- if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) &&
- (flags & ACPI_NS_SEARCH_PARENT)) {
- local_flags |= ACPI_NS_SEARCH_PARENT;
- }
-
- /* Set error flag according to caller */
-
- if (flags & ACPI_NS_ERROR_IF_FOUND) {
- local_flags |= ACPI_NS_ERROR_IF_FOUND;
- }
- }
-
- /* Extract one ACPI name from the front of the pathname */
-
- ACPI_MOVE_32_TO_32(&simple_name, path);
-
- /* Try to find the single (4 character) ACPI name */
-
- status =
- acpi_ns_search_and_enter(simple_name, walk_state,
- current_node, interpreter_mode,
- this_search_type, local_flags,
- &this_node);
- if (ACPI_FAILURE(status)) {
- if (status == AE_NOT_FOUND) {
-
- /* Name not found in ACPI namespace */
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Name [%4.4s] not found in scope [%4.4s] %p\n",
- (char *)&simple_name,
- (char *)¤t_node->name,
- current_node));
- }
-
- *return_node = this_node;
- return_ACPI_STATUS(status);
- }
-
- /* More segments to follow? */
-
- if (num_segments > 0) {
- /*
- * If we have an alias to an object that opens a scope (such as a
- * device or processor), we need to dereference the alias here so that
- * we can access any children of the original node (via the remaining
- * segments).
- */
- if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) {
- if (!this_node->object) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
-
- if (acpi_ns_opens_scope
- (((struct acpi_namespace_node *)this_node->
- object)->type)) {
- this_node =
- (struct acpi_namespace_node *)
- this_node->object;
- }
- }
- }
-
- /* Special handling for the last segment (num_segments == 0) */
-
- else {
- /*
- * Sanity typecheck of the target object:
- *
- * If 1) This is the last segment (num_segments == 0)
- * 2) And we are looking for a specific type
- * (Not checking for TYPE_ANY)
- * 3) Which is not an alias
- * 4) Which is not a local type (TYPE_SCOPE)
- * 5) And the type of target object is known (not TYPE_ANY)
- * 6) And target object does not match what we are looking for
- *
- * Then we have a type mismatch. Just warn and ignore it.
- */
- if ((type_to_check_for != ACPI_TYPE_ANY) &&
- (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) &&
- (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS)
- && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE)
- && (this_node->type != ACPI_TYPE_ANY)
- && (this_node->type != type_to_check_for)) {
-
- /* Complain about a type mismatch */
-
- ACPI_WARNING((AE_INFO,
- "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)",
- ACPI_CAST_PTR(char, &simple_name),
- acpi_ut_get_type_name(this_node->
- type),
- acpi_ut_get_type_name
- (type_to_check_for)));
- }
-
- /*
- * If this is the last name segment and we are not looking for a
- * specific type, but the type of found object is known, use that type
- * to (later) see if it opens a scope.
- */
- if (type == ACPI_TYPE_ANY) {
- type = this_node->type;
- }
- }
-
- /* Point to next name segment and make this node current */
-
- path += ACPI_NAME_SIZE;
- current_node = this_node;
- }
-
- /*
- * Always check if we need to open a new scope
- */
- if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) {
- /*
- * If entry is a type which opens a scope, push the new scope on the
- * scope stack.
- */
- if (acpi_ns_opens_scope(type)) {
- status =
- acpi_ds_scope_stack_push(this_node, type,
- walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- }
-
- *return_node = this_node;
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nsalloc - Namespace allocation and deletion utilities
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsalloc")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_create_node
- *
- * PARAMETERS: Name - Name of the new node (4 char ACPI name)
- *
- * RETURN: New namespace node (Null on failure)
- *
- * DESCRIPTION: Create a namespace node
- *
- ******************************************************************************/
-struct acpi_namespace_node *acpi_ns_create_node(u32 name)
-{
- struct acpi_namespace_node *node;
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
- u32 temp;
-#endif
-
- ACPI_FUNCTION_TRACE(ns_create_node);
-
- node = acpi_os_acquire_object(acpi_gbl_namespace_cache);
- if (!node) {
- return_PTR(NULL);
- }
-
- ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
- temp =
- acpi_gbl_ns_node_list->total_allocated -
- acpi_gbl_ns_node_list->total_freed;
- if (temp > acpi_gbl_ns_node_list->max_occupied) {
- acpi_gbl_ns_node_list->max_occupied = temp;
- }
-#endif
-
- node->name.integer = name;
- ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
- return_PTR(node);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_delete_node
- *
- * PARAMETERS: Node - Node to be deleted
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete a namespace node
- *
- ******************************************************************************/
-
-void acpi_ns_delete_node(struct acpi_namespace_node *node)
-{
- struct acpi_namespace_node *parent_node;
- struct acpi_namespace_node *prev_node;
- struct acpi_namespace_node *next_node;
-
- ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node);
-
- parent_node = acpi_ns_get_parent_node(node);
-
- prev_node = NULL;
- next_node = parent_node->child;
-
- /* Find the node that is the previous peer in the parent's child list */
-
- while (next_node != node) {
- prev_node = next_node;
- next_node = prev_node->peer;
- }
-
- if (prev_node) {
-
- /* Node is not first child, unlink it */
-
- prev_node->peer = next_node->peer;
- if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
- prev_node->flags |= ANOBJ_END_OF_PEER_LIST;
- }
- } else {
- /* Node is first child (has no previous peer) */
-
- if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
-
- /* No peers at all */
-
- parent_node->child = NULL;
- } else { /* Link peer list to parent */
-
- parent_node->child = next_node->peer;
- }
- }
-
- ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
-
- /*
- * Detach an object if there is one, then delete the node
- */
- acpi_ns_detach_object(node);
- (void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_install_node
- *
- * PARAMETERS: walk_state - Current state of the walk
- * parent_node - The parent of the new Node
- * Node - The new Node to install
- * Type - ACPI object type of the new Node
- *
- * RETURN: None
- *
- * DESCRIPTION: Initialize a new namespace node and install it amongst
- * its peers.
- *
- * Note: Current namespace lookup is linear search. This appears
- * to be sufficient as namespace searches consume only a small
- * fraction of the execution time of the ACPI subsystem.
- *
- ******************************************************************************/
-
-void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parent_node, /* Parent */
- struct acpi_namespace_node *node, /* New Child */
- acpi_object_type type)
-{
- acpi_owner_id owner_id = 0;
- struct acpi_namespace_node *child_node;
-
- ACPI_FUNCTION_TRACE(ns_install_node);
-
- /*
- * Get the owner ID from the Walk state
- * The owner ID is used to track table deletion and
- * deletion of objects created by methods
- */
- if (walk_state) {
- owner_id = walk_state->owner_id;
- }
-
- /* Link the new entry into the parent and existing children */
-
- child_node = parent_node->child;
- if (!child_node) {
- parent_node->child = node;
- node->flags |= ANOBJ_END_OF_PEER_LIST;
- node->peer = parent_node;
- } else {
- while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) {
- child_node = child_node->peer;
- }
-
- child_node->peer = node;
-
- /* Clear end-of-list flag */
-
- child_node->flags &= ~ANOBJ_END_OF_PEER_LIST;
- node->flags |= ANOBJ_END_OF_PEER_LIST;
- node->peer = parent_node;
- }
-
- /* Init the new entry */
-
- node->owner_id = owner_id;
- node->type = (u8) type;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n",
- acpi_ut_get_node_name(node),
- acpi_ut_get_type_name(node->type), node, owner_id,
- acpi_ut_get_node_name(parent_node),
- acpi_ut_get_type_name(parent_node->type),
- parent_node));
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_delete_children
- *
- * PARAMETERS: parent_node - Delete this objects children
- *
- * RETURN: None.
- *
- * DESCRIPTION: Delete all children of the parent object. In other words,
- * deletes a "scope".
- *
- ******************************************************************************/
-
-void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
-{
- struct acpi_namespace_node *child_node;
- struct acpi_namespace_node *next_node;
- u8 flags;
-
- ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node);
-
- if (!parent_node) {
- return_VOID;
- }
-
- /* If no children, all done! */
-
- child_node = parent_node->child;
- if (!child_node) {
- return_VOID;
- }
-
- /*
- * Deallocate all children at this level
- */
- do {
-
- /* Get the things we need */
-
- next_node = child_node->peer;
- flags = child_node->flags;
-
- /* Grandchildren should have all been deleted already */
-
- if (child_node->child) {
- ACPI_ERROR((AE_INFO, "Found a grandchild! P=%p C=%p",
- parent_node, child_node));
- }
-
- /* Now we can free this child object */
-
- ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Object %p, Remaining %X\n", child_node,
- acpi_gbl_current_node_count));
-
- /*
- * Detach an object if there is one, then free the child node
- */
- acpi_ns_detach_object(child_node);
-
- /* Now we can delete the node */
-
- (void)acpi_os_release_object(acpi_gbl_namespace_cache,
- child_node);
-
- /* And move on to the next child in the list */
-
- child_node = next_node;
-
- } while (!(flags & ANOBJ_END_OF_PEER_LIST));
-
- /* Clear the parent's child pointer */
-
- parent_node->child = NULL;
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_delete_namespace_subtree
- *
- * PARAMETERS: parent_node - Root of the subtree to be deleted
- *
- * RETURN: None.
- *
- * DESCRIPTION: Delete a subtree of the namespace. This includes all objects
- * stored within the subtree.
- *
- ******************************************************************************/
-
-void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
-{
- struct acpi_namespace_node *child_node = NULL;
- u32 level = 1;
-
- ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree);
-
- if (!parent_node) {
- return_VOID;
- }
-
- /*
- * Traverse the tree of objects until we bubble back up
- * to where we started.
- */
- while (level > 0) {
-
- /* Get the next node in this scope (NULL if none) */
-
- child_node =
- acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
- child_node);
- if (child_node) {
-
- /* Found a child node - detach any attached object */
-
- acpi_ns_detach_object(child_node);
-
- /* Check if this node has any children */
-
- if (acpi_ns_get_next_node
- (ACPI_TYPE_ANY, child_node, NULL)) {
- /*
- * There is at least one child of this node,
- * visit the node
- */
- level++;
- parent_node = child_node;
- child_node = NULL;
- }
- } else {
- /*
- * No more children of this parent node.
- * Move up to the grandparent.
- */
- level--;
-
- /*
- * Now delete all of the children of this parent
- * all at the same time.
- */
- acpi_ns_delete_children(parent_node);
-
- /* New "last child" is this parent node */
-
- child_node = parent_node;
-
- /* Move up the tree to the grandparent */
-
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_delete_namespace_by_owner
- *
- * PARAMETERS: owner_id - All nodes with this owner will be deleted
- *
- * RETURN: Status
- *
- * DESCRIPTION: Delete entries within the namespace that are owned by a
- * specific ID. Used to delete entire ACPI tables. All
- * reference counts are updated.
- *
- * MUTEX: Locks namespace during deletion walk.
- *
- ******************************************************************************/
-
-void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
-{
- struct acpi_namespace_node *child_node;
- struct acpi_namespace_node *deletion_node;
- struct acpi_namespace_node *parent_node;
- u32 level;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id);
-
- if (owner_id == 0) {
- return_VOID;
- }
-
- /* Lock namespace for possible update */
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
-
- deletion_node = NULL;
- parent_node = acpi_gbl_root_node;
- child_node = NULL;
- level = 1;
-
- /*
- * Traverse the tree of nodes until we bubble back up
- * to where we started.
- */
- while (level > 0) {
- /*
- * Get the next child of this parent node. When child_node is NULL,
- * the first child of the parent is returned
- */
- child_node =
- acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
- child_node);
-
- if (deletion_node) {
- acpi_ns_delete_children(deletion_node);
- acpi_ns_delete_node(deletion_node);
- deletion_node = NULL;
- }
-
- if (child_node) {
- if (child_node->owner_id == owner_id) {
-
- /* Found a matching child node - detach any attached object */
-
- acpi_ns_detach_object(child_node);
- }
-
- /* Check if this node has any children */
-
- if (acpi_ns_get_next_node
- (ACPI_TYPE_ANY, child_node, NULL)) {
- /*
- * There is at least one child of this node,
- * visit the node
- */
- level++;
- parent_node = child_node;
- child_node = NULL;
- } else if (child_node->owner_id == owner_id) {
- deletion_node = child_node;
- }
- } else {
- /*
- * No more children of this parent node.
- * Move up to the grandparent.
- */
- level--;
- if (level != 0) {
- if (parent_node->owner_id == owner_id) {
- deletion_node = parent_node;
- }
- }
-
- /* New "last child" is this parent node */
-
- child_node = parent_node;
-
- /* Move up the tree to the grandparent */
-
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_VOID;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsdump - table dumping routines for debug
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsdump")
-
-/* Local prototypes */
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-void acpi_ns_dump_root_devices(void);
-
-static acpi_status
-acpi_ns_dump_one_device(acpi_handle obj_handle,
- u32 level, void *context, void **return_value);
-#endif
-
-#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_print_pathname
- *
- * PARAMETERS: num_segments - Number of ACPI name segments
- * Pathname - The compressed (internal) path
- *
- * RETURN: None
- *
- * DESCRIPTION: Print an object's full namespace pathname
- *
- ******************************************************************************/
-
-void acpi_ns_print_pathname(u32 num_segments, char *pathname)
-{
- u32 i;
-
- ACPI_FUNCTION_NAME(ns_print_pathname);
-
- if (!(acpi_dbg_level & ACPI_LV_NAMES)
- || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
- return;
- }
-
- /* Print the entire name */
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
-
- while (num_segments) {
- for (i = 0; i < 4; i++) {
- ACPI_IS_PRINT(pathname[i]) ?
- acpi_os_printf("%c", pathname[i]) :
- acpi_os_printf("?");
- }
-
- pathname += ACPI_NAME_SIZE;
- num_segments--;
- if (num_segments) {
- acpi_os_printf(".");
- }
- }
-
- acpi_os_printf("]\n");
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_pathname
- *
- * PARAMETERS: Handle - Object
- * Msg - Prefix message
- * Level - Desired debug level
- * Component - Caller's component ID
- *
- * RETURN: None
- *
- * DESCRIPTION: Print an object's full namespace pathname
- * Manages allocation/freeing of a pathname buffer
- *
- ******************************************************************************/
-
-void
-acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
-{
-
- ACPI_FUNCTION_TRACE(ns_dump_pathname);
-
- /* Do this only if the requested debug level and component are enabled */
-
- if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
- return_VOID;
- }
-
- /* Convert handle to a full pathname and print it (with supplied message) */
-
- acpi_ns_print_node_pathname(handle, msg);
- acpi_os_printf("\n");
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_one_object
- *
- * PARAMETERS: obj_handle - Node to be dumped
- * Level - Nesting level of the handle
- * Context - Passed into walk_namespace
- * return_value - Not used
- *
- * RETURN: Status
- *
- * DESCRIPTION: Dump a single Node
- * This procedure is a user_function called by acpi_ns_walk_namespace.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_dump_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- struct acpi_walk_info *info = (struct acpi_walk_info *)context;
- struct acpi_namespace_node *this_node;
- union acpi_operand_object *obj_desc = NULL;
- acpi_object_type obj_type;
- acpi_object_type type;
- u32 bytes_to_dump;
- u32 dbg_level;
- u32 i;
-
- ACPI_FUNCTION_NAME(ns_dump_one_object);
-
- /* Is output enabled? */
-
- if (!(acpi_dbg_level & info->debug_level)) {
- return (AE_OK);
- }
-
- if (!obj_handle) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
- return (AE_OK);
- }
-
- this_node = acpi_ns_map_handle_to_node(obj_handle);
- type = this_node->type;
-
- /* Check if the owner matches */
-
- if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
- (info->owner_id != this_node->owner_id)) {
- return (AE_OK);
- }
-
- if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
-
- /* Indent the object according to the level */
-
- acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
-
- /* Check the node type and name */
-
- if (type > ACPI_TYPE_LOCAL_MAX) {
- ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X",
- type));
- }
-
- if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
- this_node->name.integer =
- acpi_ut_repair_name(this_node->name.ascii);
-
- ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
- this_node->name.integer));
- }
-
- acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
- }
-
- /*
- * Now we can print out the pertinent information
- */
- acpi_os_printf(" %-12s %p %2.2X ",
- acpi_ut_get_type_name(type), this_node,
- this_node->owner_id);
-
- dbg_level = acpi_dbg_level;
- acpi_dbg_level = 0;
- obj_desc = acpi_ns_get_attached_object(this_node);
- acpi_dbg_level = dbg_level;
-
- /* Temp nodes are those nodes created by a control method */
-
- if (this_node->flags & ANOBJ_TEMPORARY) {
- acpi_os_printf("(T) ");
- }
-
- switch (info->display_type & ACPI_DISPLAY_MASK) {
- case ACPI_DISPLAY_SUMMARY:
-
- if (!obj_desc) {
-
- /* No attached object, we are done */
-
- acpi_os_printf("\n");
- return (AE_OK);
- }
-
- switch (type) {
- case ACPI_TYPE_PROCESSOR:
-
- acpi_os_printf("ID %X Len %.4X Addr %p\n",
- obj_desc->processor.proc_id,
- obj_desc->processor.length,
- ACPI_CAST_PTR(void,
- obj_desc->processor.
- address));
- break;
-
- case ACPI_TYPE_DEVICE:
-
- acpi_os_printf("Notify Object: %p\n", obj_desc);
- break;
-
- case ACPI_TYPE_METHOD:
-
- acpi_os_printf("Args %X Len %.4X Aml %p\n",
- (u32) obj_desc->method.param_count,
- obj_desc->method.aml_length,
- obj_desc->method.aml_start);
- break;
-
- case ACPI_TYPE_INTEGER:
-
- acpi_os_printf("= %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(obj_desc->integer.
- value));
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- acpi_os_printf("Elements %.2X\n",
- obj_desc->package.count);
- } else {
- acpi_os_printf("[Length not yet evaluated]\n");
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- acpi_os_printf("Len %.2X",
- obj_desc->buffer.length);
-
- /* Dump some of the buffer */
-
- if (obj_desc->buffer.length > 0) {
- acpi_os_printf(" =");
- for (i = 0;
- (i < obj_desc->buffer.length
- && i < 12); i++) {
- acpi_os_printf(" %.2hX",
- obj_desc->buffer.
- pointer[i]);
- }
- }
- acpi_os_printf("\n");
- } else {
- acpi_os_printf("[Length not yet evaluated]\n");
- }
- break;
-
- case ACPI_TYPE_STRING:
-
- acpi_os_printf("Len %.2X ", obj_desc->string.length);
- acpi_ut_print_string(obj_desc->string.pointer, 32);
- acpi_os_printf("\n");
- break;
-
- case ACPI_TYPE_REGION:
-
- acpi_os_printf("[%s]",
- acpi_ut_get_region_name(obj_desc->region.
- space_id));
- if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
- acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
- ACPI_FORMAT_NATIVE_UINT
- (obj_desc->region.address),
- obj_desc->region.length);
- } else {
- acpi_os_printf
- (" [Address/Length not yet evaluated]\n");
- }
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- acpi_os_printf("[%s]\n",
- acpi_ut_get_reference_name(obj_desc));
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- if (obj_desc->buffer_field.buffer_obj &&
- obj_desc->buffer_field.buffer_obj->buffer.node) {
- acpi_os_printf("Buf [%4.4s]",
- acpi_ut_get_node_name(obj_desc->
- buffer_field.
- buffer_obj->
- buffer.
- node));
- }
- break;
-
- case ACPI_TYPE_LOCAL_REGION_FIELD:
-
- acpi_os_printf("Rgn [%4.4s]",
- acpi_ut_get_node_name(obj_desc->
- common_field.
- region_obj->region.
- node));
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
- acpi_ut_get_node_name(obj_desc->
- common_field.
- region_obj->region.
- node),
- acpi_ut_get_node_name(obj_desc->
- bank_field.
- bank_obj->
- common_field.
- node));
- break;
-
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
- acpi_ut_get_node_name(obj_desc->
- index_field.
- index_obj->
- common_field.node),
- acpi_ut_get_node_name(obj_desc->
- index_field.
- data_obj->
- common_field.
- node));
- break;
-
- case ACPI_TYPE_LOCAL_ALIAS:
- case ACPI_TYPE_LOCAL_METHOD_ALIAS:
-
- acpi_os_printf("Target %4.4s (%p)\n",
- acpi_ut_get_node_name(obj_desc),
- obj_desc);
- break;
-
- default:
-
- acpi_os_printf("Object %p\n", obj_desc);
- break;
- }
-
- /* Common field handling */
-
- switch (type) {
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
- (obj_desc->common_field.
- base_byte_offset * 8)
- +
- obj_desc->common_field.
- start_field_bit_offset,
- obj_desc->common_field.bit_length,
- obj_desc->common_field.
- access_byte_width);
- break;
-
- default:
- break;
- }
- break;
-
- case ACPI_DISPLAY_OBJECTS:
-
- acpi_os_printf("O:%p", obj_desc);
- if (!obj_desc) {
-
- /* No attached object, we are done */
-
- acpi_os_printf("\n");
- return (AE_OK);
- }
-
- acpi_os_printf("(R%d)", obj_desc->common.reference_count);
-
- switch (type) {
- case ACPI_TYPE_METHOD:
-
- /* Name is a Method and its AML offset/length are set */
-
- acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
- obj_desc->method.aml_length);
- break;
-
- case ACPI_TYPE_INTEGER:
-
- acpi_os_printf(" I:%8.8X8.8%X\n",
- ACPI_FORMAT_UINT64(obj_desc->integer.
- value));
- break;
-
- case ACPI_TYPE_STRING:
-
- acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
- obj_desc->string.length);
- break;
-
- case ACPI_TYPE_BUFFER:
-
- acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
- obj_desc->buffer.length);
- break;
-
- default:
-
- acpi_os_printf("\n");
- break;
- }
- break;
-
- default:
- acpi_os_printf("\n");
- break;
- }
-
- /* If debug turned off, done */
-
- if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
- return (AE_OK);
- }
-
- /* If there is an attached object, display it */
-
- dbg_level = acpi_dbg_level;
- acpi_dbg_level = 0;
- obj_desc = acpi_ns_get_attached_object(this_node);
- acpi_dbg_level = dbg_level;
-
- /* Dump attached objects */
-
- while (obj_desc) {
- obj_type = ACPI_TYPE_INVALID;
- acpi_os_printf("Attached Object %p: ", obj_desc);
-
- /* Decode the type of attached object and dump the contents */
-
- switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
- case ACPI_DESC_TYPE_NAMED:
-
- acpi_os_printf("(Ptr to Node)\n");
- bytes_to_dump = sizeof(struct acpi_namespace_node);
- ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
- break;
-
- case ACPI_DESC_TYPE_OPERAND:
-
- obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
-
- if (obj_type > ACPI_TYPE_LOCAL_MAX) {
- acpi_os_printf
- ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
- obj_type);
- bytes_to_dump = 32;
- } else {
- acpi_os_printf
- ("(Pointer to ACPI Object type %.2X [%s])\n",
- obj_type, acpi_ut_get_type_name(obj_type));
- bytes_to_dump =
- sizeof(union acpi_operand_object);
- }
-
- ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
- break;
-
- default:
-
- break;
- }
-
- /* If value is NOT an internal object, we are done */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
- ACPI_DESC_TYPE_OPERAND) {
- goto cleanup;
- }
-
- /*
- * Valid object, get the pointer to next level, if any
- */
- switch (obj_type) {
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_STRING:
- /*
- * NOTE: takes advantage of common fields between string/buffer
- */
- bytes_to_dump = obj_desc->string.length;
- obj_desc = (void *)obj_desc->string.pointer;
- acpi_os_printf("(Buffer/String pointer %p length %X)\n",
- obj_desc, bytes_to_dump);
- ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
- goto cleanup;
-
- case ACPI_TYPE_BUFFER_FIELD:
- obj_desc =
- (union acpi_operand_object *)obj_desc->buffer_field.
- buffer_obj;
- break;
-
- case ACPI_TYPE_PACKAGE:
- obj_desc = (void *)obj_desc->package.elements;
- break;
-
- case ACPI_TYPE_METHOD:
- obj_desc = (void *)obj_desc->method.aml_start;
- break;
-
- case ACPI_TYPE_LOCAL_REGION_FIELD:
- obj_desc = (void *)obj_desc->field.region_obj;
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- obj_desc = (void *)obj_desc->bank_field.region_obj;
- break;
-
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
- obj_desc = (void *)obj_desc->index_field.index_obj;
- break;
-
- default:
- goto cleanup;
- }
-
- obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
- }
-
- cleanup:
- acpi_os_printf("\n");
- return (AE_OK);
-}
-
-#ifdef ACPI_FUTURE_USAGE
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_objects
- *
- * PARAMETERS: Type - Object type to be dumped
- * display_type - 0 or ACPI_DISPLAY_SUMMARY
- * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
- * for an effectively unlimited depth.
- * owner_id - Dump only objects owned by this ID. Use
- * ACPI_UINT32_MAX to match all owners.
- * start_handle - Where in namespace to start/end search
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump typed objects within the loaded namespace.
- * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
- *
- ******************************************************************************/
-
-void
-acpi_ns_dump_objects(acpi_object_type type,
- u8 display_type,
- u32 max_depth,
- acpi_owner_id owner_id, acpi_handle start_handle)
-{
- struct acpi_walk_info info;
-
- ACPI_FUNCTION_ENTRY();
-
- info.debug_level = ACPI_LV_TABLES;
- info.owner_id = owner_id;
- info.display_type = display_type;
-
- (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
- ACPI_NS_WALK_NO_UNLOCK |
- ACPI_NS_WALK_TEMP_NODES,
- acpi_ns_dump_one_object, (void *)&info,
- NULL);
-}
-#endif /* ACPI_FUTURE_USAGE */
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_entry
- *
- * PARAMETERS: Handle - Node to be dumped
- * debug_level - Output level
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump a single Node
- *
- ******************************************************************************/
-
-void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
-{
- struct acpi_walk_info info;
-
- ACPI_FUNCTION_ENTRY();
-
- info.debug_level = debug_level;
- info.owner_id = ACPI_OWNER_ID_MAX;
- info.display_type = ACPI_DISPLAY_SUMMARY;
-
- (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
-}
-
-#ifdef ACPI_ASL_COMPILER
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_tables
- *
- * PARAMETERS: search_base - Root of subtree to be dumped, or
- * NS_ALL to dump the entire namespace
- * max_depth - Maximum depth of dump. Use INT_MAX
- * for an effectively unlimited depth.
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump the name space, or a portion of it.
- *
- ******************************************************************************/
-
-void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
-{
- acpi_handle search_handle = search_base;
-
- ACPI_FUNCTION_TRACE(ns_dump_tables);
-
- if (!acpi_gbl_root_node) {
- /*
- * If the name space has not been initialized,
- * there is nothing to dump.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
- "namespace not initialized!\n"));
- return_VOID;
- }
-
- if (ACPI_NS_ALL == search_base) {
-
- /* Entire namespace */
-
- search_handle = acpi_gbl_root_node;
- ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
- }
-
- acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
- ACPI_OWNER_ID_MAX, search_handle);
- return_VOID;
-}
-#endif /* _ACPI_ASL_COMPILER */
-#endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsdump - table dumping routines for debug
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-/* TBD: This entire module is apparently obsolete and should be removed */
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsdumpdv")
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-#include <acpi/acnamesp.h>
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_one_device
- *
- * PARAMETERS: Handle - Node to be dumped
- * Level - Nesting level of the handle
- * Context - Passed into walk_namespace
- * return_value - Not used
- *
- * RETURN: Status
- *
- * DESCRIPTION: Dump a single Node that represents a device
- * This procedure is a user_function called by acpi_ns_walk_namespace.
- *
- ******************************************************************************/
-static acpi_status
-acpi_ns_dump_one_device(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- struct acpi_buffer buffer;
- struct acpi_device_info *info;
- acpi_status status;
- u32 i;
-
- ACPI_FUNCTION_NAME(ns_dump_one_device);
-
- status =
- acpi_ns_dump_one_object(obj_handle, level, context, return_value);
-
- buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
- status = acpi_get_object_info(obj_handle, &buffer);
- if (ACPI_SUCCESS(status)) {
- info = buffer.pointer;
- for (i = 0; i < level; i++) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " "));
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES,
- " HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
- info->hardware_id.value,
- ACPI_FORMAT_UINT64(info->address),
- info->current_status));
- ACPI_FREE(info);
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_dump_root_devices
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump all objects of type "device"
- *
- ******************************************************************************/
-
-void acpi_ns_dump_root_devices(void)
-{
- acpi_handle sys_bus_handle;
- acpi_status status;
-
- ACPI_FUNCTION_NAME(ns_dump_root_devices);
-
- /* Only dump the table if tracing is enabled */
-
- if (!(ACPI_LV_TABLES & acpi_dbg_level)) {
- return;
- }
-
- status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle);
- if (ACPI_FAILURE(status)) {
- return;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
- "Display of all devices in the namespace:\n"));
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle,
- ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
- acpi_ns_dump_one_device, NULL, NULL);
-}
-
-#endif
-#endif
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nseval - Object evaluation, includes control method execution
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nseval")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_evaluate
- *
- * PARAMETERS: Info - Evaluation info block, contains:
- * prefix_node - Prefix or Method/Object Node to execute
- * Pathname - Name of method to execute, If NULL, the
- * Node is the object to execute
- * Parameters - List of parameters to pass to the method,
- * terminated by NULL. Params itself may be
- * NULL if no parameters are being passed.
- * return_object - Where to put method's return value (if
- * any). If NULL, no value is returned.
- * parameter_type - Type of Parameter list
- * return_object - Where to put method's return value (if
- * any). If NULL, no value is returned.
- * Flags - ACPI_IGNORE_RETURN_VALUE to delete return
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute a control method or return the current value of an
- * ACPI namespace object.
- *
- * MUTEX: Locks interpreter
- *
- ******************************************************************************/
-acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(ns_evaluate);
-
- if (!info) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Initialize the return value to an invalid object */
-
- info->return_object = NULL;
- info->param_count = 0;
-
- /*
- * Get the actual namespace node for the target object. Handles these cases:
- *
- * 1) Null node, Pathname (absolute path)
- * 2) Node, Pathname (path relative to Node)
- * 3) Node, Null Pathname
- */
- status = acpi_ns_get_node(info->prefix_node, info->pathname,
- ACPI_NS_NO_UPSEARCH, &info->resolved_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * For a method alias, we must grab the actual method node so that proper
- * scoping context will be established before execution.
- */
- if (acpi_ns_get_type(info->resolved_node) ==
- ACPI_TYPE_LOCAL_METHOD_ALIAS) {
- info->resolved_node =
- ACPI_CAST_PTR(struct acpi_namespace_node,
- info->resolved_node->object);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname,
- info->resolved_node,
- acpi_ns_get_attached_object(info->resolved_node)));
-
- node = info->resolved_node;
-
- /*
- * Two major cases here:
- *
- * 1) The object is a control method -- execute it
- * 2) The object is not a method -- just return it's current value
- */
- if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) {
- /*
- * 1) Object is a control method - execute it
- */
-
- /* Verify that there is a method object associated with this node */
-
- info->obj_desc =
- acpi_ns_get_attached_object(info->resolved_node);
- if (!info->obj_desc) {
- ACPI_ERROR((AE_INFO,
- "Control method has no attached sub-object"));
- return_ACPI_STATUS(AE_NULL_OBJECT);
- }
-
- /* Count the number of arguments being passed to the method */
-
- if (info->parameters) {
- while (info->parameters[info->param_count]) {
- if (info->param_count > ACPI_METHOD_MAX_ARG) {
- return_ACPI_STATUS(AE_LIMIT);
- }
- info->param_count++;
- }
- }
-
-
- ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:",
- ACPI_LV_INFO, _COMPONENT);
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Method at AML address %p Length %X\n",
- info->obj_desc->method.aml_start + 1,
- info->obj_desc->method.aml_length - 1));
-
- /*
- * Any namespace deletion must acquire both the namespace and
- * interpreter locks to ensure that no thread is using the portion of
- * the namespace that is being deleted.
- *
- * Execute the method via the interpreter. The interpreter is locked
- * here before calling into the AML parser
- */
- acpi_ex_enter_interpreter();
- status = acpi_ps_execute_method(info);
- acpi_ex_exit_interpreter();
- } else {
- /*
- * 2) Object is not a method, return its current value
- *
- * Disallow certain object types. For these, "evaluation" is undefined.
- */
- switch (info->resolved_node->type) {
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_EVENT:
- case ACPI_TYPE_MUTEX:
- case ACPI_TYPE_REGION:
- case ACPI_TYPE_THERMAL:
- case ACPI_TYPE_LOCAL_SCOPE:
-
- ACPI_ERROR((AE_INFO,
- "[%4.4s] Evaluation of object type [%s] is not supported",
- info->resolved_node->name.ascii,
- acpi_ut_get_type_name(info->resolved_node->
- type)));
-
- return_ACPI_STATUS(AE_TYPE);
-
- default:
- break;
- }
-
- /*
- * Objects require additional resolution steps (e.g., the Node may be
- * a field that must be read, etc.) -- we can't just grab the object
- * out of the node.
- *
- * Use resolve_node_to_value() to get the associated value.
- *
- * NOTE: we can get away with passing in NULL for a walk state because
- * resolved_node is guaranteed to not be a reference to either a method
- * local or a method argument (because this interface is never called
- * from a running method.)
- *
- * Even though we do not directly invoke the interpreter for object
- * resolution, we must lock it because we could access an opregion.
- * The opregion access code assumes that the interpreter is locked.
- */
- acpi_ex_enter_interpreter();
-
- /* Function has a strange interface */
-
- status =
- acpi_ex_resolve_node_to_value(&info->resolved_node, NULL);
- acpi_ex_exit_interpreter();
-
- /*
- * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed
- * in resolved_node.
- */
- if (ACPI_SUCCESS(status)) {
- status = AE_CTRL_RETURN_VALUE;
- info->return_object =
- ACPI_CAST_PTR(union acpi_operand_object,
- info->resolved_node);
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Returning object %p [%s]\n",
- info->return_object,
- acpi_ut_get_object_type_name(info->
- return_object)));
- }
- }
-
- /*
- * Check input argument count against the ASL-defined count for a method.
- * Also check predefined names: argument count and return value against
- * the ACPI specification. Some incorrect return value types are repaired.
- */
- (void)acpi_ns_check_predefined_names(node, info->param_count,
- status, &info->return_object);
-
- /* Check if there is a return value that must be dealt with */
-
- if (status == AE_CTRL_RETURN_VALUE) {
-
- /* If caller does not want the return value, delete it */
-
- if (info->flags & ACPI_IGNORE_RETURN_VALUE) {
- acpi_ut_remove_reference(info->return_object);
- info->return_object = NULL;
- }
-
- /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
-
- status = AE_OK;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "*** Completed evaluation of object %s ***\n",
- info->pathname));
-
- /*
- * Namespace was unlocked by the handling acpi_ns* function, so we
- * just return
- */
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsinit - namespace initialization
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <linux/nmi.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsinit")
-
-/* Local prototypes */
-static acpi_status
-acpi_ns_init_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value);
-
-static acpi_status
-acpi_ns_init_one_device(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value);
-
-static acpi_status
-acpi_ns_find_ini_methods(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_initialize_objects
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk the entire namespace and perform any necessary
- * initialization on the objects found therein
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_initialize_objects(void)
-{
- acpi_status status;
- struct acpi_init_walk_info info;
-
- ACPI_FUNCTION_TRACE(ns_initialize_objects);
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "**** Starting initialization of namespace objects ****\n"));
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "Completing Region/Field/Buffer/Package initialization:"));
-
- /* Set all init info to zero */
-
- ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
-
- /* Walk entire namespace from the supplied root */
-
- status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, acpi_ns_init_one_object,
- &info, NULL);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
- info.op_region_init, info.op_region_count,
- info.field_init, info.field_count,
- info.buffer_init, info.buffer_count,
- info.package_init, info.package_count,
- info.object_count));
-
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "%hd Control Methods found\n", info.method_count));
- ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
- "%hd Op Regions found\n", info.op_region_count));
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_initialize_devices
- *
- * PARAMETERS: None
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
- * This means running _INI on all present devices.
- *
- * Note: We install PCI config space handler on region access,
- * not here.
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_initialize_devices(void)
-{
- acpi_status status;
- struct acpi_device_walk_info info;
-
- ACPI_FUNCTION_TRACE(ns_initialize_devices);
-
- /* Init counters */
-
- info.device_count = 0;
- info.num_STA = 0;
- info.num_INI = 0;
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "Initializing Device/Processor/Thermal objects by executing _INI methods:"));
-
- /* Tree analysis: find all subtrees that contain _INI methods */
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, FALSE,
- acpi_ns_find_ini_methods, &info, NULL);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- /* Allocate the evaluation information block */
-
- info.evaluate_info =
- ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info.evaluate_info) {
- status = AE_NO_MEMORY;
- goto error_exit;
- }
-
- /* Walk namespace to execute all _INIs on present devices */
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, FALSE,
- acpi_ns_init_one_device, &info, NULL);
-
- ACPI_FREE(info.evaluate_info);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n",
- info.num_INI, info.num_STA, info.device_count));
-
- return_ACPI_STATUS(status);
-
- error_exit:
- ACPI_EXCEPTION((AE_INFO, status, "During device initialization"));
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_init_one_object
- *
- * PARAMETERS: obj_handle - Node
- * Level - Current nesting level
- * Context - Points to a init info struct
- * return_value - Not used
- *
- * RETURN: Status
- *
- * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
- * within the namespace.
- *
- * Currently, the only objects that require initialization are:
- * 1) Methods
- * 2) Op Regions
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_init_one_object(acpi_handle obj_handle,
- u32 level, void *context, void **return_value)
-{
- acpi_object_type type;
- acpi_status status = AE_OK;
- struct acpi_init_walk_info *info =
- (struct acpi_init_walk_info *)context;
- struct acpi_namespace_node *node =
- (struct acpi_namespace_node *)obj_handle;
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_NAME(ns_init_one_object);
-
- info->object_count++;
-
- /* And even then, we are only interested in a few object types */
-
- type = acpi_ns_get_type(obj_handle);
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- return (AE_OK);
- }
-
- /* Increment counters for object types we are looking for */
-
- switch (type) {
- case ACPI_TYPE_REGION:
- info->op_region_count++;
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
- info->field_count++;
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
- info->field_count++;
- break;
-
- case ACPI_TYPE_BUFFER:
- info->buffer_count++;
- break;
-
- case ACPI_TYPE_PACKAGE:
- info->package_count++;
- break;
-
- default:
-
- /* No init required, just exit now */
- return (AE_OK);
- }
-
- /*
- * If the object is already initialized, nothing else to do
- */
- if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
- return (AE_OK);
- }
-
- /*
- * Must lock the interpreter before executing AML code
- */
- acpi_ex_enter_interpreter();
-
- /*
- * Each of these types can contain executable AML code within the
- * declaration.
- */
- switch (type) {
- case ACPI_TYPE_REGION:
-
- info->op_region_init++;
- status = acpi_ds_get_region_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- info->field_init++;
- status = acpi_ds_get_buffer_field_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- info->field_init++;
- status = acpi_ds_get_bank_field_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_BUFFER:
-
- info->buffer_init++;
- status = acpi_ds_get_buffer_arguments(obj_desc);
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- info->package_init++;
- status = acpi_ds_get_package_arguments(obj_desc);
- break;
-
- default:
- /* No other types can get here */
- break;
- }
-
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not execute arguments for [%4.4s] (%s)",
- acpi_ut_get_node_name(node),
- acpi_ut_get_type_name(type)));
- }
-
- /*
- * Print a dot for each object unless we are going to print the entire
- * pathname
- */
- if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
- }
-
- /*
- * We ignore errors from above, and always return OK, since we don't want
- * to abort the walk on any single error.
- */
- acpi_ex_exit_interpreter();
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_find_ini_methods
- *
- * PARAMETERS: acpi_walk_callback
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
- * device/processor/thermal objects, and marks the entire subtree
- * with a SUBTREE_HAS_INI flag. This flag is used during the
- * subsequent device initialization walk to avoid entire subtrees
- * that do not contain an _INI.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_find_ini_methods(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value)
-{
- struct acpi_device_walk_info *info =
- ACPI_CAST_PTR(struct acpi_device_walk_info, context);
- struct acpi_namespace_node *node;
- struct acpi_namespace_node *parent_node;
-
- /* Keep count of device/processor/thermal objects */
-
- node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
- if ((node->type == ACPI_TYPE_DEVICE) ||
- (node->type == ACPI_TYPE_PROCESSOR) ||
- (node->type == ACPI_TYPE_THERMAL)) {
- info->device_count++;
- return (AE_OK);
- }
-
- /* We are only looking for methods named _INI */
-
- if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) {
- return (AE_OK);
- }
-
- /*
- * The only _INI methods that we care about are those that are
- * present under Device, Processor, and Thermal objects.
- */
- parent_node = acpi_ns_get_parent_node(node);
- switch (parent_node->type) {
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
-
- /* Mark parent and bubble up the INI present flag to the root */
-
- while (parent_node) {
- parent_node->flags |= ANOBJ_SUBTREE_HAS_INI;
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
- break;
-
- default:
- break;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_init_one_device
- *
- * PARAMETERS: acpi_walk_callback
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: This is called once per device soon after ACPI is enabled
- * to initialize each device. It determines if the device is
- * present, and if so, calls _INI.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_init_one_device(acpi_handle obj_handle,
- u32 nesting_level, void *context, void **return_value)
-{
- struct acpi_device_walk_info *walk_info =
- ACPI_CAST_PTR(struct acpi_device_walk_info, context);
- struct acpi_evaluate_info *info = walk_info->evaluate_info;
- u32 flags;
- acpi_status status;
- struct acpi_namespace_node *device_node;
-
- ACPI_FUNCTION_TRACE(ns_init_one_device);
-
- /* We are interested in Devices, Processors and thermal_zones only */
-
- device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
- if ((device_node->type != ACPI_TYPE_DEVICE) &&
- (device_node->type != ACPI_TYPE_PROCESSOR) &&
- (device_node->type != ACPI_TYPE_THERMAL)) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Because of an earlier namespace analysis, all subtrees that contain an
- * _INI method are tagged.
- *
- * If this device subtree does not contain any _INI methods, we
- * can exit now and stop traversing this entire subtree.
- */
- if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) {
- return_ACPI_STATUS(AE_CTRL_DEPTH);
- }
-
- /*
- * Run _STA to determine if this device is present and functioning. We
- * must know this information for two important reasons (from ACPI spec):
- *
- * 1) We can only run _INI if the device is present.
- * 2) We must abort the device tree walk on this subtree if the device is
- * not present and is not functional (we will not examine the children)
- *
- * The _STA method is not required to be present under the device, we
- * assume the device is present if _STA does not exist.
- */
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA));
-
- status = acpi_ut_execute_STA(device_node, &flags);
- if (ACPI_FAILURE(status)) {
-
- /* Ignore error and move on to next device */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Flags == -1 means that _STA was not found. In this case, we assume that
- * the device is both present and functional.
- *
- * From the ACPI spec, description of _STA:
- *
- * "If a device object (including the processor object) does not have an
- * _STA object, then OSPM assumes that all of the above bits are set (in
- * other words, the device is present, ..., and functioning)"
- */
- if (flags != ACPI_UINT32_MAX) {
- walk_info->num_STA++;
- }
-
- /*
- * Examine the PRESENT and FUNCTIONING status bits
- *
- * Note: ACPI spec does not seem to specify behavior for the present but
- * not functioning case, so we assume functioning if present.
- */
- if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
-
- /* Device is not present, we must examine the Functioning bit */
-
- if (flags & ACPI_STA_DEVICE_FUNCTIONING) {
- /*
- * Device is not present but is "functioning". In this case,
- * we will not run _INI, but we continue to examine the children
- * of this device.
- *
- * From the ACPI spec, description of _STA: (Note - no mention
- * of whether to run _INI or not on the device in question)
- *
- * "_STA may return bit 0 clear (not present) with bit 3 set
- * (device is functional). This case is used to indicate a valid
- * device for which no device driver should be loaded (for example,
- * a bridge device.) Children of this device may be present and
- * valid. OSPM should continue enumeration below a device whose
- * _STA returns this bit combination"
- */
- return_ACPI_STATUS(AE_OK);
- } else {
- /*
- * Device is not present and is not functioning. We must abort the
- * walk of this subtree immediately -- don't look at the children
- * of such a device.
- *
- * From the ACPI spec, description of _INI:
- *
- * "If the _STA method indicates that the device is not present,
- * OSPM will not run the _INI and will not examine the children
- * of the device for _INI methods"
- */
- return_ACPI_STATUS(AE_CTRL_DEPTH);
- }
- }
-
- /*
- * The device is present or is assumed present if no _STA exists.
- * Run the _INI if it exists (not required to exist)
- *
- * Note: We know there is an _INI within this subtree, but it may not be
- * under this particular device, it may be lower in the branch.
- */
- ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
- (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
-
- info->prefix_node = device_node;
- info->pathname = METHOD_NAME__INI;
- info->parameters = NULL;
- info->flags = ACPI_IGNORE_RETURN_VALUE;
-
- /*
- * Some hardware relies on this being executed as atomically
- * as possible (without an NMI being received in the middle of
- * this) - so disable NMIs and initialize the device:
- */
- acpi_nmi_disable();
- status = acpi_ns_evaluate(info);
- acpi_nmi_enable();
-
- if (ACPI_SUCCESS(status)) {
- walk_info->num_INI++;
-
- if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
- (!(acpi_dbg_level & ACPI_LV_INFO))) {
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
- }
- }
-#ifdef ACPI_DEBUG_OUTPUT
- else if (status != AE_NOT_FOUND) {
-
- /* Ignore error and move on to next device */
-
- char *scope_name =
- acpi_ns_get_external_pathname(info->resolved_node);
-
- ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution",
- scope_name));
- ACPI_FREE(scope_name);
- }
-#endif
-
- /* Ignore errors from above */
-
- status = AE_OK;
-
- /*
- * The _INI method has been run if present; call the Global Initialization
- * Handler for this device.
- */
- if (acpi_gbl_init_handler) {
- status =
- acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI);
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsload - namespace loading/expanding/contracting procedures
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsload")
-
-/* Local prototypes */
-#ifdef ACPI_FUTURE_IMPLEMENTATION
-acpi_status acpi_ns_unload_namespace(acpi_handle handle);
-
-static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle);
-#endif
-
-#ifndef ACPI_NO_METHOD_EXECUTION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_load_table
- *
- * PARAMETERS: table_index - Index for table to be loaded
- * Node - Owning NS node
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load one ACPI table into the namespace
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ns_load_table);
-
- /*
- * Parse the table and load the namespace with all named
- * objects found within. Control methods are NOT parsed
- * at this time. In fact, the control methods cannot be
- * parsed until the entire namespace is loaded, because
- * if a control method makes a forward reference (call)
- * to another control method, we can't continue parsing
- * because we don't know how many arguments to parse next!
- */
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* If table already loaded into namespace, just return */
-
- if (acpi_tb_is_table_loaded(table_index)) {
- status = AE_ALREADY_EXISTS;
- goto unlock;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "**** Loading table into namespace ****\n"));
-
- status = acpi_tb_allocate_owner_id(table_index);
- if (ACPI_FAILURE(status)) {
- goto unlock;
- }
-
- status = acpi_ns_parse_table(table_index, node);
- if (ACPI_SUCCESS(status)) {
- acpi_tb_set_table_loaded_flag(table_index, TRUE);
- } else {
- (void)acpi_tb_release_owner_id(table_index);
- }
-
- unlock:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Now we can parse the control methods. We always parse
- * them here for a sanity check, and if configured for
- * just-in-time parsing, we delete the control method
- * parse trees.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "**** Begin Table Method Parsing and Object Initialization ****\n"));
-
- status = acpi_ds_initialize_objects(table_index, node);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "**** Completed Table Method Parsing and Object Initialization ****\n"));
-
- return_ACPI_STATUS(status);
-}
-
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-/*******************************************************************************
- *
- * FUNCTION: acpi_load_namespace
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load the name space from what ever is pointed to by DSDT.
- * (DSDT points to either the BIOS or a buffer.)
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_load_namespace(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_load_name_space);
-
- /* There must be at least a DSDT installed */
-
- if (acpi_gbl_DSDT == NULL) {
- ACPI_ERROR((AE_INFO, "DSDT is not in memory"));
- return_ACPI_STATUS(AE_NO_ACPI_TABLES);
- }
-
- /*
- * Load the namespace. The DSDT is required,
- * but the SSDT and PSDT tables are optional.
- */
- status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Ignore exceptions from these */
-
- (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT);
- (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT);
-
- ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- "ACPI Namespace successfully loaded at root %p\n",
- acpi_gbl_root_node));
-
- return_ACPI_STATUS(status);
-}
-#endif
-
-#ifdef ACPI_FUTURE_IMPLEMENTATION
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_delete_subtree
- *
- * PARAMETERS: start_handle - Handle in namespace where search begins
- *
- * RETURNS Status
- *
- * DESCRIPTION: Walks the namespace starting at the given handle and deletes
- * all objects, entries, and scopes in the entire subtree.
- *
- * Namespace/Interpreter should be locked or the subsystem should
- * be in shutdown before this routine is called.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
-{
- acpi_status status;
- acpi_handle child_handle;
- acpi_handle parent_handle;
- acpi_handle next_child_handle;
- acpi_handle dummy;
- u32 level;
-
- ACPI_FUNCTION_TRACE(ns_delete_subtree);
-
- parent_handle = start_handle;
- child_handle = NULL;
- level = 1;
-
- /*
- * Traverse the tree of objects until we bubble back up
- * to where we started.
- */
- while (level > 0) {
-
- /* Attempt to get the next object in this scope */
-
- status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle,
- child_handle, &next_child_handle);
-
- child_handle = next_child_handle;
-
- /* Did we get a new object? */
-
- if (ACPI_SUCCESS(status)) {
-
- /* Check if this object has any children */
-
- if (ACPI_SUCCESS
- (acpi_get_next_object
- (ACPI_TYPE_ANY, child_handle, NULL, &dummy))) {
- /*
- * There is at least one child of this object,
- * visit the object
- */
- level++;
- parent_handle = child_handle;
- child_handle = NULL;
- }
- } else {
- /*
- * No more children in this object, go back up to
- * the object's parent
- */
- level--;
-
- /* Delete all children now */
-
- acpi_ns_delete_children(child_handle);
-
- child_handle = parent_handle;
- status = acpi_get_parent(parent_handle, &parent_handle);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
- }
-
- /* Now delete the starting object, and we are done */
-
- acpi_ns_delete_node(child_handle);
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_unload_name_space
- *
- * PARAMETERS: Handle - Root of namespace subtree to be deleted
- *
- * RETURN: Status
- *
- * DESCRIPTION: Shrinks the namespace, typically in response to an undocking
- * event. Deletes an entire subtree starting from (and
- * including) the given handle.
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_unload_namespace(acpi_handle handle)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ns_unload_name_space);
-
- /* Parameter validation */
-
- if (!acpi_gbl_root_node) {
- return_ACPI_STATUS(AE_NO_NAMESPACE);
- }
-
- if (!handle) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* This function does the real work */
-
- status = acpi_ns_delete_subtree(handle);
-
- return_ACPI_STATUS(status);
-}
-#endif
-#endif
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nsnames - Name manipulation and search
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsnames")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_build_external_path
- *
- * PARAMETERS: Node - NS node whose pathname is needed
- * Size - Size of the pathname
- * *name_buffer - Where to return the pathname
- *
- * RETURN: Status
- * Places the pathname into the name_buffer, in external format
- * (name segments separated by path separators)
- *
- * DESCRIPTION: Generate a full pathaname
- *
- ******************************************************************************/
-acpi_status
-acpi_ns_build_external_path(struct acpi_namespace_node *node,
- acpi_size size, char *name_buffer)
-{
- acpi_size index;
- struct acpi_namespace_node *parent_node;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Special case for root */
-
- index = size - 1;
- if (index < ACPI_NAME_SIZE) {
- name_buffer[0] = AML_ROOT_PREFIX;
- name_buffer[1] = 0;
- return (AE_OK);
- }
-
- /* Store terminator byte, then build name backwards */
-
- parent_node = node;
- name_buffer[index] = 0;
-
- while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) {
- index -= ACPI_NAME_SIZE;
-
- /* Put the name into the buffer */
-
- ACPI_MOVE_32_TO_32((name_buffer + index), &parent_node->name);
- parent_node = acpi_ns_get_parent_node(parent_node);
-
- /* Prefix name with the path separator */
-
- index--;
- name_buffer[index] = ACPI_PATH_SEPARATOR;
- }
-
- /* Overwrite final separator with the root prefix character */
-
- name_buffer[index] = AML_ROOT_PREFIX;
-
- if (index != 0) {
- ACPI_ERROR((AE_INFO,
- "Could not construct external pathname; index=%X, size=%X, Path=%s",
- (u32) index, (u32) size, &name_buffer[size]));
-
- return (AE_BAD_PARAMETER);
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_external_pathname
- *
- * PARAMETERS: Node - Namespace node whose pathname is needed
- *
- * RETURN: Pointer to storage containing the fully qualified name of
- * the node, In external format (name segments separated by path
- * separators.)
- *
- * DESCRIPTION: Used for debug printing in acpi_ns_search_table().
- *
- ******************************************************************************/
-
-char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
-{
- acpi_status status;
- char *name_buffer;
- acpi_size size;
-
- ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);
-
- /* Calculate required buffer size based on depth below root */
-
- size = acpi_ns_get_pathname_length(node);
- if (!size) {
- return_PTR(NULL);
- }
-
- /* Allocate a buffer to be returned to caller */
-
- name_buffer = ACPI_ALLOCATE_ZEROED(size);
- if (!name_buffer) {
- ACPI_ERROR((AE_INFO, "Allocation failure"));
- return_PTR(NULL);
- }
-
- /* Build the path in the allocated buffer */
-
- status = acpi_ns_build_external_path(node, size, name_buffer);
- if (ACPI_FAILURE(status)) {
- ACPI_FREE(name_buffer);
- return_PTR(NULL);
- }
-
- return_PTR(name_buffer);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_pathname_length
- *
- * PARAMETERS: Node - Namespace node
- *
- * RETURN: Length of path, including prefix
- *
- * DESCRIPTION: Get the length of the pathname string for this node
- *
- ******************************************************************************/
-
-acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node)
-{
- acpi_size size;
- struct acpi_namespace_node *next_node;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Compute length of pathname as 5 * number of name segments.
- * Go back up the parent tree to the root
- */
- size = 0;
- next_node = node;
-
- while (next_node && (next_node != acpi_gbl_root_node)) {
- if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) {
- ACPI_ERROR((AE_INFO,
- "Invalid Namespace Node (%p) while traversing namespace",
- next_node));
- return 0;
- }
- size += ACPI_PATH_SEGMENT_LENGTH;
- next_node = acpi_ns_get_parent_node(next_node);
- }
-
- if (!size) {
- size = 1; /* Root node case */
- }
-
- return (size + 1); /* +1 for null string terminator */
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_handle_to_pathname
- *
- * PARAMETERS: target_handle - Handle of named object whose name is
- * to be found
- * Buffer - Where the pathname is returned
- *
- * RETURN: Status, Buffer is filled with pathname if status is AE_OK
- *
- * DESCRIPTION: Build and return a full namespace pathname
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_handle_to_pathname(acpi_handle target_handle,
- struct acpi_buffer * buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- acpi_size required_size;
-
- ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);
-
- node = acpi_ns_map_handle_to_node(target_handle);
- if (!node) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Determine size required for the caller buffer */
-
- required_size = acpi_ns_get_pathname_length(node);
- if (!required_size) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- status = acpi_ut_initialize_buffer(buffer, required_size);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Build the path in the caller buffer */
-
- status =
- acpi_ns_build_external_path(node, required_size, buffer->pointer);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n",
- (char *)buffer->pointer, (u32) required_size));
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nsobject - Utilities for objects attached to namespace
- * table entries
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsobject")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_attach_object
- *
- * PARAMETERS: Node - Parent Node
- * Object - Object to be attached
- * Type - Type of object, or ACPI_TYPE_ANY if not
- * known
- *
- * RETURN: Status
- *
- * DESCRIPTION: Record the given object as the value associated with the
- * name whose acpi_handle is passed. If Object is NULL
- * and Type is ACPI_TYPE_ANY, set the name as having no value.
- * Note: Future may require that the Node->Flags field be passed
- * as a parameter.
- *
- * MUTEX: Assumes namespace is locked
- *
- ******************************************************************************/
-acpi_status
-acpi_ns_attach_object(struct acpi_namespace_node *node,
- union acpi_operand_object *object, acpi_object_type type)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *last_obj_desc;
- acpi_object_type object_type = ACPI_TYPE_ANY;
-
- ACPI_FUNCTION_TRACE(ns_attach_object);
-
- /*
- * Parameter validation
- */
- if (!node) {
-
- /* Invalid handle */
-
- ACPI_ERROR((AE_INFO, "Null NamedObj handle"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (!object && (ACPI_TYPE_ANY != type)) {
-
- /* Null object */
-
- ACPI_ERROR((AE_INFO,
- "Null object, but type not ACPI_TYPE_ANY"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
-
- /* Not a name handle */
-
- ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]",
- node, acpi_ut_get_descriptor_name(node)));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Check if this object is already attached */
-
- if (node->object == object) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Obj %p already installed in NameObj %p\n",
- object, node));
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* If null object, we will just install it */
-
- if (!object) {
- obj_desc = NULL;
- object_type = ACPI_TYPE_ANY;
- }
-
- /*
- * If the source object is a namespace Node with an attached object,
- * we will use that (attached) object
- */
- else if ((ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) &&
- ((struct acpi_namespace_node *)object)->object) {
- /*
- * Value passed is a name handle and that name has a
- * non-null value. Use that name's value and type.
- */
- obj_desc = ((struct acpi_namespace_node *)object)->object;
- object_type = ((struct acpi_namespace_node *)object)->type;
- }
-
- /*
- * Otherwise, we will use the parameter object, but we must type
- * it first
- */
- else {
- obj_desc = (union acpi_operand_object *)object;
-
- /* Use the given type */
-
- object_type = type;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n",
- obj_desc, node, acpi_ut_get_node_name(node)));
-
- /* Detach an existing attached object if present */
-
- if (node->object) {
- acpi_ns_detach_object(node);
- }
-
- if (obj_desc) {
- /*
- * Must increment the new value's reference count
- * (if it is an internal object)
- */
- acpi_ut_add_reference(obj_desc);
-
- /*
- * Handle objects with multiple descriptors - walk
- * to the end of the descriptor list
- */
- last_obj_desc = obj_desc;
- while (last_obj_desc->common.next_object) {
- last_obj_desc = last_obj_desc->common.next_object;
- }
-
- /* Install the object at the front of the object list */
-
- last_obj_desc->common.next_object = node->object;
- }
-
- node->type = (u8) object_type;
- node->object = obj_desc;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_detach_object
- *
- * PARAMETERS: Node - A Namespace node whose object will be detached
- *
- * RETURN: None.
- *
- * DESCRIPTION: Detach/delete an object associated with a namespace node.
- * if the object is an allocated object, it is freed.
- * Otherwise, the field is simply cleared.
- *
- ******************************************************************************/
-
-void acpi_ns_detach_object(struct acpi_namespace_node *node)
-{
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE(ns_detach_object);
-
- obj_desc = node->object;
-
- if (!obj_desc ||
- (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA)) {
- return_VOID;
- }
-
- /* Clear the entry in all cases */
-
- node->object = NULL;
- if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == ACPI_DESC_TYPE_OPERAND) {
- node->object = obj_desc->common.next_object;
- if (node->object &&
- (ACPI_GET_OBJECT_TYPE(node->object) !=
- ACPI_TYPE_LOCAL_DATA)) {
- node->object = node->object->common.next_object;
- }
- }
-
- /* Reset the node type to untyped */
-
- node->type = ACPI_TYPE_ANY;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n",
- node, acpi_ut_get_node_name(node), obj_desc));
-
- /* Remove one reference on the object (and all subobjects) */
-
- acpi_ut_remove_reference(obj_desc);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_attached_object
- *
- * PARAMETERS: Node - Namespace node
- *
- * RETURN: Current value of the object field from the Node whose
- * handle is passed
- *
- * DESCRIPTION: Obtain the object attached to a namespace node.
- *
- ******************************************************************************/
-
-union acpi_operand_object *acpi_ns_get_attached_object(struct
- acpi_namespace_node
- *node)
-{
- ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node);
-
- if (!node) {
- ACPI_WARNING((AE_INFO, "Null Node ptr"));
- return_PTR(NULL);
- }
-
- if (!node->object ||
- ((ACPI_GET_DESCRIPTOR_TYPE(node->object) != ACPI_DESC_TYPE_OPERAND)
- && (ACPI_GET_DESCRIPTOR_TYPE(node->object) !=
- ACPI_DESC_TYPE_NAMED))
- || (ACPI_GET_OBJECT_TYPE(node->object) == ACPI_TYPE_LOCAL_DATA)) {
- return_PTR(NULL);
- }
-
- return_PTR(node->object);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_secondary_object
- *
- * PARAMETERS: Node - Namespace node
- *
- * RETURN: Current value of the object field from the Node whose
- * handle is passed.
- *
- * DESCRIPTION: Obtain a secondary object associated with a namespace node.
- *
- ******************************************************************************/
-
-union acpi_operand_object *acpi_ns_get_secondary_object(union
- acpi_operand_object
- *obj_desc)
-{
- ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc);
-
- if ((!obj_desc) ||
- (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) ||
- (!obj_desc->common.next_object) ||
- (ACPI_GET_OBJECT_TYPE(obj_desc->common.next_object) ==
- ACPI_TYPE_LOCAL_DATA)) {
- return_PTR(NULL);
- }
-
- return_PTR(obj_desc->common.next_object);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_attach_data
- *
- * PARAMETERS: Node - Namespace node
- * Handler - Handler to be associated with the data
- * Data - Data to be attached
- *
- * RETURN: Status
- *
- * DESCRIPTION: Low-level attach data. Create and attach a Data object.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_attach_data(struct acpi_namespace_node *node,
- acpi_object_handler handler, void *data)
-{
- union acpi_operand_object *prev_obj_desc;
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *data_desc;
-
- /* We only allow one attachment per handler */
-
- prev_obj_desc = NULL;
- obj_desc = node->object;
- while (obj_desc) {
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
- (obj_desc->data.handler == handler)) {
- return (AE_ALREADY_EXISTS);
- }
-
- prev_obj_desc = obj_desc;
- obj_desc = obj_desc->common.next_object;
- }
-
- /* Create an internal object for the data */
-
- data_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_DATA);
- if (!data_desc) {
- return (AE_NO_MEMORY);
- }
-
- data_desc->data.handler = handler;
- data_desc->data.pointer = data;
-
- /* Install the data object */
-
- if (prev_obj_desc) {
- prev_obj_desc->common.next_object = data_desc;
- } else {
- node->object = data_desc;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_detach_data
- *
- * PARAMETERS: Node - Namespace node
- * Handler - Handler associated with the data
- *
- * RETURN: Status
- *
- * DESCRIPTION: Low-level detach data. Delete the data node, but the caller
- * is responsible for the actual data.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_detach_data(struct acpi_namespace_node * node,
- acpi_object_handler handler)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *prev_obj_desc;
-
- prev_obj_desc = NULL;
- obj_desc = node->object;
- while (obj_desc) {
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
- (obj_desc->data.handler == handler)) {
- if (prev_obj_desc) {
- prev_obj_desc->common.next_object =
- obj_desc->common.next_object;
- } else {
- node->object = obj_desc->common.next_object;
- }
-
- acpi_ut_remove_reference(obj_desc);
- return (AE_OK);
- }
-
- prev_obj_desc = obj_desc;
- obj_desc = obj_desc->common.next_object;
- }
-
- return (AE_NOT_FOUND);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_attached_data
- *
- * PARAMETERS: Node - Namespace node
- * Handler - Handler associated with the data
- * Data - Where the data is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Low level interface to obtain data previously associated with
- * a namespace node.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_get_attached_data(struct acpi_namespace_node * node,
- acpi_object_handler handler, void **data)
-{
- union acpi_operand_object *obj_desc;
-
- obj_desc = node->object;
- while (obj_desc) {
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
- (obj_desc->data.handler == handler)) {
- *data = obj_desc->data.pointer;
- return (AE_OK);
- }
-
- obj_desc = obj_desc->common.next_object;
- }
-
- return (AE_NOT_FOUND);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsparse - namespace interface to AML parser
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsparse")
-
-/*******************************************************************************
- *
- * FUNCTION: ns_one_complete_parse
- *
- * PARAMETERS: pass_number - 1 or 2
- * table_desc - The table to be parsed.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
- *
- ******************************************************************************/
-acpi_status
-acpi_ns_one_complete_parse(u32 pass_number,
- u32 table_index,
- struct acpi_namespace_node *start_node)
-{
- union acpi_parse_object *parse_root;
- acpi_status status;
- u32 aml_length;
- u8 *aml_start;
- struct acpi_walk_state *walk_state;
- struct acpi_table_header *table;
- acpi_owner_id owner_id;
-
- ACPI_FUNCTION_TRACE(ns_one_complete_parse);
-
- status = acpi_tb_get_owner_id(table_index, &owner_id);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Create and init a Root Node */
-
- parse_root = acpi_ps_create_scope_op();
- if (!parse_root) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Create and initialize a new walk state */
-
- walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL);
- if (!walk_state) {
- acpi_ps_free_op(parse_root);
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- status = acpi_get_table_by_index(table_index, &table);
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- acpi_ps_free_op(parse_root);
- return_ACPI_STATUS(status);
- }
-
- /* Table must consist of at least a complete header */
-
- if (table->length < sizeof(struct acpi_table_header)) {
- status = AE_BAD_HEADER;
- } else {
- aml_start = (u8 *) table + sizeof(struct acpi_table_header);
- aml_length = table->length - sizeof(struct acpi_table_header);
- status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL,
- aml_start, aml_length, NULL,
- (u8) pass_number);
- }
-
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
- /* start_node is the default location to load the table */
-
- if (start_node && start_node != acpi_gbl_root_node) {
- status =
- acpi_ds_scope_stack_push(start_node, ACPI_TYPE_METHOD,
- walk_state);
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
- }
-
- /* Parse the AML */
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "*PARSE* pass %d parse\n",
- (unsigned)pass_number));
- status = acpi_ps_parse_aml(walk_state);
-
- cleanup:
- acpi_ps_delete_parse_tree(parse_root);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_parse_table
- *
- * PARAMETERS: table_desc - An ACPI table descriptor for table to parse
- * start_node - Where to enter the table into the namespace
- *
- * RETURN: Status
- *
- * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ns_parse_table);
-
- /*
- * AML Parse, pass 1
- *
- * In this pass, we load most of the namespace. Control methods
- * are not parsed until later. A parse tree is not created. Instead,
- * each Parser Op subtree is deleted when it is finished. This saves
- * a great deal of memory, and allows a small cache of parse objects
- * to service the entire parse. The second pass of the parse then
- * performs another complete parse of the AML.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 1\n"));
- status =
- acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1, table_index,
- start_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * AML Parse, pass 2
- *
- * In this pass, we resolve forward references and other things
- * that could not be completed during the first pass.
- * Another complete parse of the AML is performed, but the
- * overhead of this is compensated for by the fact that the
- * parse objects are all cached.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Start pass 2\n"));
- status =
- acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2, table_index,
- start_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nspredef - Validation of ACPI predefined methods and objects
- * $Revision: 1.1 $
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acpredef.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nspredef")
-
-/*******************************************************************************
- *
- * This module validates predefined ACPI objects that appear in the namespace,
- * at the time they are evaluated (via acpi_evaluate_object). The purpose of this
- * validation is to detect problems with BIOS-exposed predefined ACPI objects
- * before the results are returned to the ACPI-related drivers.
- *
- * There are several areas that are validated:
- *
- * 1) The number of input arguments as defined by the method/object in the
- * ASL is validated against the ACPI specification.
- * 2) The type of the return object (if any) is validated against the ACPI
- * specification.
- * 3) For returned package objects, the count of package elements is
- * validated, as well as the type of each package element. Nested
- * packages are supported.
- *
- * For any problems found, a warning message is issued.
- *
- ******************************************************************************/
-/* Local prototypes */
-static acpi_status
-acpi_ns_check_package(char *pathname,
- union acpi_operand_object **return_object_ptr,
- const union acpi_predefined_info *predefined);
-
-static acpi_status
-acpi_ns_check_package_elements(char *pathname,
- union acpi_operand_object **elements,
- u8 type1, u32 count1, u8 type2, u32 count2);
-
-static acpi_status
-acpi_ns_check_object_type(char *pathname,
- union acpi_operand_object **return_object_ptr,
- u32 expected_btypes, u32 package_index);
-
-static acpi_status
-acpi_ns_check_reference(char *pathname,
- union acpi_operand_object *return_object);
-
-static acpi_status
-acpi_ns_repair_object(u32 expected_btypes,
- u32 package_index,
- union acpi_operand_object **return_object_ptr);
-
-/*
- * Names for the types that can be returned by the predefined objects.
- * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
- */
-static const char *acpi_rtype_names[] = {
- "/Integer",
- "/String",
- "/Buffer",
- "/Package",
- "/Reference",
-};
-
-#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_predefined_names
- *
- * PARAMETERS: Node - Namespace node for the method/object
- * return_object_ptr - Pointer to the object returned from the
- * evaluation of a method or object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check an ACPI name for a match in the predefined name list.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
- u32 user_param_count,
- acpi_status return_status,
- union acpi_operand_object **return_object_ptr)
-{
- union acpi_operand_object *return_object = *return_object_ptr;
- acpi_status status = AE_OK;
- const union acpi_predefined_info *predefined;
- char *pathname;
-
- /* Match the name for this method/object against the predefined list */
-
- predefined = acpi_ns_check_for_predefined_name(node);
-
- /* Get the full pathname to the object, for use in error messages */
-
- pathname = acpi_ns_get_external_pathname(node);
- if (!pathname) {
- pathname = ACPI_CAST_PTR(char, predefined->info.name);
- }
-
- /*
- * Check that the parameter count for this method matches the ASL
- * definition. For predefined names, ensure that both the caller and
- * the method itself are in accordance with the ACPI specification.
- */
- acpi_ns_check_parameter_count(pathname, node, user_param_count,
- predefined);
-
- /* If not a predefined name, we cannot validate the return object */
-
- if (!predefined) {
- goto exit;
- }
-
- /* If the method failed, we cannot validate the return object */
-
- if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) {
- goto exit;
- }
-
- /*
- * Only validate the return value on the first successful evaluation of
- * the method. This ensures that any warnings will only be emitted during
- * the very first evaluation of the method/object.
- */
- if (node->flags & ANOBJ_EVALUATED) {
- goto exit;
- }
-
- /* Mark the node as having been successfully evaluated */
-
- node->flags |= ANOBJ_EVALUATED;
-
- /*
- * If there is no return value, check if we require a return value for
- * this predefined name. Either one return value is expected, or none,
- * for both methods and other objects.
- *
- * Exit now if there is no return object. Warning if one was expected.
- */
- if (!return_object) {
- if ((predefined->info.expected_btypes) &&
- (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) {
- ACPI_ERROR((AE_INFO,
- "%s: Missing expected return value",
- pathname));
-
- status = AE_AML_NO_RETURN_VALUE;
- }
- goto exit;
- }
-
- /*
- * We have a return value, but if one wasn't expected, just exit, this is
- * not a problem
- *
- * For example, if the "Implicit Return" feature is enabled, methods will
- * always return a value
- */
- if (!predefined->info.expected_btypes) {
- goto exit;
- }
-
- /*
- * Check that the type of the return object is what is expected for
- * this predefined name
- */
- status = acpi_ns_check_object_type(pathname, return_object_ptr,
- predefined->info.expected_btypes,
- ACPI_NOT_PACKAGE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* For returned Package objects, check the type of all sub-objects */
-
- if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) {
- status =
- acpi_ns_check_package(pathname, return_object_ptr,
- predefined);
- }
-
- exit:
- if (pathname != predefined->info.name) {
- ACPI_FREE(pathname);
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_parameter_count
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * Node - Namespace node for the method/object
- * user_param_count - Number of args passed in by the caller
- * Predefined - Pointer to entry in predefined name table
- *
- * RETURN: None
- *
- * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a
- * predefined name is what is expected (i.e., what is defined in
- * the ACPI specification for this predefined name.)
- *
- ******************************************************************************/
-
-void
-acpi_ns_check_parameter_count(char *pathname,
- struct acpi_namespace_node *node,
- u32 user_param_count,
- const union acpi_predefined_info *predefined)
-{
- u32 param_count;
- u32 required_params_current;
- u32 required_params_old;
-
- /* Methods have 0-7 parameters. All other types have zero. */
-
- param_count = 0;
- if (node->type == ACPI_TYPE_METHOD) {
- param_count = node->object->method.param_count;
- }
-
- /* Argument count check for non-predefined methods/objects */
-
- if (!predefined) {
- /*
- * Warning if too few or too many arguments have been passed by the
- * caller. An incorrect number of arguments may not cause the method
- * to fail. However, the method will fail if there are too few
- * arguments and the method attempts to use one of the missing ones.
- */
- if (user_param_count < param_count) {
- ACPI_WARNING((AE_INFO,
- "%s: Insufficient arguments - needs %d, found %d",
- pathname, param_count, user_param_count));
- } else if (user_param_count > param_count) {
- ACPI_WARNING((AE_INFO,
- "%s: Excess arguments - needs %d, found %d",
- pathname, param_count, user_param_count));
- }
- return;
- }
-
- /* Allow two different legal argument counts (_SCP, etc.) */
-
- required_params_current = predefined->info.param_count & 0x0F;
- required_params_old = predefined->info.param_count >> 4;
-
- if (user_param_count != ACPI_UINT32_MAX) {
-
- /* Validate the user-supplied parameter count */
-
- if ((user_param_count != required_params_current) &&
- (user_param_count != required_params_old)) {
- ACPI_WARNING((AE_INFO,
- "%s: Parameter count mismatch - caller passed %d, ACPI requires %d",
- pathname, user_param_count,
- required_params_current));
- }
- }
-
- /*
- * Only validate the argument count on the first successful evaluation of
- * the method. This ensures that any warnings will only be emitted during
- * the very first evaluation of the method/object.
- */
- if (node->flags & ANOBJ_EVALUATED) {
- return;
- }
-
- /*
- * Check that the ASL-defined parameter count is what is expected for
- * this predefined name.
- */
- if ((param_count != required_params_current) &&
- (param_count != required_params_old)) {
- ACPI_WARNING((AE_INFO,
- "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d",
- pathname, param_count, required_params_current));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_for_predefined_name
- *
- * PARAMETERS: Node - Namespace node for the method/object
- *
- * RETURN: Pointer to entry in predefined table. NULL indicates not found.
- *
- * DESCRIPTION: Check an object name against the predefined object list.
- *
- ******************************************************************************/
-
-const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
- acpi_namespace_node
- *node)
-{
- const union acpi_predefined_info *this_name;
-
- /* Quick check for a predefined name, first character must be underscore */
-
- if (node->name.ascii[0] != '_') {
- return (NULL);
- }
-
- /* Search info table for a predefined method/object name */
-
- this_name = predefined_names;
- while (this_name->info.name[0]) {
- if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) {
-
- /* Return pointer to this table entry */
-
- return (this_name);
- }
-
- /*
- * Skip next entry in the table if this name returns a Package
- * (next entry contains the package info)
- */
- if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
- this_name++;
- }
-
- this_name++;
- }
-
- return (NULL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_package
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * return_object_ptr - Pointer to the object returned from the
- * evaluation of a method or object
- * Predefined - Pointer to entry in predefined name table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check a returned package object for the correct count and
- * correct type of all sub-objects.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_package(char *pathname,
- union acpi_operand_object **return_object_ptr,
- const union acpi_predefined_info *predefined)
-{
- union acpi_operand_object *return_object = *return_object_ptr;
- const union acpi_predefined_info *package;
- union acpi_operand_object *sub_package;
- union acpi_operand_object **elements;
- union acpi_operand_object **sub_elements;
- acpi_status status;
- u32 expected_count;
- u32 count;
- u32 i;
- u32 j;
-
- ACPI_FUNCTION_NAME(ns_check_package);
-
- /* The package info for this name is in the next table entry */
-
- package = predefined + 1;
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "%s Validating return Package of Type %X, Count %X\n",
- pathname, package->ret_info.type,
- return_object->package.count));
-
- /* Extract package count and elements array */
-
- elements = return_object->package.elements;
- count = return_object->package.count;
-
- /* The package must have at least one element, else invalid */
-
- if (!count) {
- ACPI_WARNING((AE_INFO,
- "%s: Return Package has no elements (empty)",
- pathname));
-
- return (AE_AML_OPERAND_VALUE);
- }
-
- /*
- * Decode the type of the expected package contents
- *
- * PTYPE1 packages contain no subpackages
- * PTYPE2 packages contain sub-packages
- */
- switch (package->ret_info.type) {
- case ACPI_PTYPE1_FIXED:
-
- /*
- * The package count is fixed and there are no sub-packages
- *
- * If package is too small, exit.
- * If package is larger than expected, issue warning but continue
- */
- expected_count =
- package->ret_info.count1 + package->ret_info.count2;
- if (count < expected_count) {
- goto package_too_small;
- } else if (count > expected_count) {
- ACPI_WARNING((AE_INFO,
- "%s: Return Package is larger than needed - "
- "found %u, expected %u", pathname, count,
- expected_count));
- }
-
- /* Validate all elements of the returned package */
-
- status = acpi_ns_check_package_elements(pathname, elements,
- package->ret_info.
- object_type1,
- package->ret_info.
- count1,
- package->ret_info.
- object_type2,
- package->ret_info.
- count2);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
-
- case ACPI_PTYPE1_VAR:
-
- /*
- * The package count is variable, there are no sub-packages, and all
- * elements must be of the same type
- */
- for (i = 0; i < count; i++) {
- status = acpi_ns_check_object_type(pathname, elements,
- package->ret_info.
- object_type1, i);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- elements++;
- }
- break;
-
- case ACPI_PTYPE1_OPTION:
-
- /*
- * The package count is variable, there are no sub-packages. There are
- * a fixed number of required elements, and a variable number of
- * optional elements.
- *
- * Check if package is at least as large as the minimum required
- */
- expected_count = package->ret_info3.count;
- if (count < expected_count) {
- goto package_too_small;
- }
-
- /* Variable number of sub-objects */
-
- for (i = 0; i < count; i++) {
- if (i < package->ret_info3.count) {
-
- /* These are the required package elements (0, 1, or 2) */
-
- status =
- acpi_ns_check_object_type(pathname,
- elements,
- package->
- ret_info3.
- object_type[i],
- i);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- } else {
- /* These are the optional package elements */
-
- status =
- acpi_ns_check_object_type(pathname,
- elements,
- package->
- ret_info3.
- tail_object_type,
- i);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
- elements++;
- }
- break;
-
- case ACPI_PTYPE2_PKG_COUNT:
-
- /* First element is the (Integer) count of sub-packages to follow */
-
- status = acpi_ns_check_object_type(pathname, elements,
- ACPI_RTYPE_INTEGER, 0);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /*
- * Count cannot be larger than the parent package length, but allow it
- * to be smaller. The >= accounts for the Integer above.
- */
- expected_count = (u32) (*elements)->integer.value;
- if (expected_count >= count) {
- goto package_too_small;
- }
-
- count = expected_count;
- elements++;
-
- /* Now we can walk the sub-packages */
-
- /*lint -fallthrough */
-
- case ACPI_PTYPE2:
- case ACPI_PTYPE2_FIXED:
- case ACPI_PTYPE2_MIN:
- case ACPI_PTYPE2_COUNT:
-
- /*
- * These types all return a single package that consists of a variable
- * number of sub-packages
- */
- for (i = 0; i < count; i++) {
- sub_package = *elements;
- sub_elements = sub_package->package.elements;
-
- /* Each sub-object must be of type Package */
-
- status =
- acpi_ns_check_object_type(pathname, &sub_package,
- ACPI_RTYPE_PACKAGE, i);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Examine the different types of sub-packages */
-
- switch (package->ret_info.type) {
- case ACPI_PTYPE2:
- case ACPI_PTYPE2_PKG_COUNT:
-
- /* Each subpackage has a fixed number of elements */
-
- expected_count =
- package->ret_info.count1 +
- package->ret_info.count2;
- if (sub_package->package.count !=
- expected_count) {
- count = sub_package->package.count;
- goto package_too_small;
- }
-
- status =
- acpi_ns_check_package_elements(pathname,
- sub_elements,
- package->
- ret_info.
- object_type1,
- package->
- ret_info.
- count1,
- package->
- ret_info.
- object_type2,
- package->
- ret_info.
- count2);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
-
- case ACPI_PTYPE2_FIXED:
-
- /* Each sub-package has a fixed length */
-
- expected_count = package->ret_info2.count;
- if (sub_package->package.count < expected_count) {
- count = sub_package->package.count;
- goto package_too_small;
- }
-
- /* Check the type of each sub-package element */
-
- for (j = 0; j < expected_count; j++) {
- status =
- acpi_ns_check_object_type(pathname,
- &sub_elements[j],
- package->ret_info2.object_type[j], j);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
- break;
-
- case ACPI_PTYPE2_MIN:
-
- /* Each sub-package has a variable but minimum length */
-
- expected_count = package->ret_info.count1;
- if (sub_package->package.count < expected_count) {
- count = sub_package->package.count;
- goto package_too_small;
- }
-
- /* Check the type of each sub-package element */
-
- status =
- acpi_ns_check_package_elements(pathname,
- sub_elements,
- package->
- ret_info.
- object_type1,
- sub_package->
- package.
- count, 0, 0);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
-
- case ACPI_PTYPE2_COUNT:
-
- /* First element is the (Integer) count of elements to follow */
-
- status =
- acpi_ns_check_object_type(pathname,
- sub_elements,
- ACPI_RTYPE_INTEGER,
- 0);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Make sure package is large enough for the Count */
-
- expected_count =
- (u32) (*sub_elements)->integer.value;
- if (sub_package->package.count < expected_count) {
- count = sub_package->package.count;
- goto package_too_small;
- }
-
- /* Check the type of each sub-package element */
-
- status =
- acpi_ns_check_package_elements(pathname,
- (sub_elements
- + 1),
- package->
- ret_info.
- object_type1,
- (expected_count
- - 1), 0, 0);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
-
- default:
- break;
- }
-
- elements++;
- }
- break;
-
- default:
-
- /* Should not get here if predefined info table is correct */
-
- ACPI_WARNING((AE_INFO,
- "%s: Invalid internal return type in table entry: %X",
- pathname, package->ret_info.type));
-
- return (AE_AML_INTERNAL);
- }
-
- return (AE_OK);
-
- package_too_small:
-
- /* Error exit for the case with an incorrect package count */
-
- ACPI_WARNING((AE_INFO, "%s: Return Package is too small - "
- "found %u, expected %u", pathname, count,
- expected_count));
-
- return (AE_AML_OPERAND_VALUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_package_elements
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * Elements - Pointer to the package elements array
- * Type1 - Object type for first group
- * Count1 - Count for first group
- * Type2 - Object type for second group
- * Count2 - Count for second group
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check that all elements of a package are of the correct object
- * type. Supports up to two groups of different object types.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_package_elements(char *pathname,
- union acpi_operand_object **elements,
- u8 type1, u32 count1, u8 type2, u32 count2)
-{
- union acpi_operand_object **this_element = elements;
- acpi_status status;
- u32 i;
-
- /*
- * Up to two groups of package elements are supported by the data
- * structure. All elements in each group must be of the same type.
- * The second group can have a count of zero.
- */
- for (i = 0; i < count1; i++) {
- status = acpi_ns_check_object_type(pathname, this_element,
- type1, i);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- this_element++;
- }
-
- for (i = 0; i < count2; i++) {
- status = acpi_ns_check_object_type(pathname, this_element,
- type2, (i + count1));
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- this_element++;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_object_type
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * return_object_ptr - Pointer to the object returned from the
- * evaluation of a method or object
- * expected_btypes - Bitmap of expected return type(s)
- * package_index - Index of object within parent package (if
- * applicable - ACPI_NOT_PACKAGE otherwise)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check the type of the return object against the expected object
- * type(s). Use of Btype allows multiple expected object types.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_object_type(char *pathname,
- union acpi_operand_object **return_object_ptr,
- u32 expected_btypes, u32 package_index)
-{
- union acpi_operand_object *return_object = *return_object_ptr;
- acpi_status status = AE_OK;
- u32 return_btype;
- char type_buffer[48]; /* Room for 5 types */
- u32 this_rtype;
- u32 i;
- u32 j;
-
- /*
- * If we get a NULL return_object here, it is a NULL package element,
- * and this is always an error.
- */
- if (!return_object) {
- goto type_error_exit;
- }
-
- /* A Namespace node should not get here, but make sure */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) {
- ACPI_WARNING((AE_INFO,
- "%s: Invalid return type - Found a Namespace node [%4.4s] type %s",
- pathname, return_object->node.name.ascii,
- acpi_ut_get_type_name(return_object->node.type)));
- return (AE_AML_OPERAND_TYPE);
- }
-
- /*
- * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type.
- * The bitmapped type allows multiple possible return types.
- *
- * Note, the cases below must handle all of the possible types returned
- * from all of the predefined names (including elements of returned
- * packages)
- */
- switch (ACPI_GET_OBJECT_TYPE(return_object)) {
- case ACPI_TYPE_INTEGER:
- return_btype = ACPI_RTYPE_INTEGER;
- break;
-
- case ACPI_TYPE_BUFFER:
- return_btype = ACPI_RTYPE_BUFFER;
- break;
-
- case ACPI_TYPE_STRING:
- return_btype = ACPI_RTYPE_STRING;
- break;
-
- case ACPI_TYPE_PACKAGE:
- return_btype = ACPI_RTYPE_PACKAGE;
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
- return_btype = ACPI_RTYPE_REFERENCE;
- break;
-
- default:
- /* Not one of the supported objects, must be incorrect */
-
- goto type_error_exit;
- }
-
- /* Is the object one of the expected types? */
-
- if (!(return_btype & expected_btypes)) {
-
- /* Type mismatch -- attempt repair of the returned object */
-
- status = acpi_ns_repair_object(expected_btypes, package_index,
- return_object_ptr);
- if (ACPI_SUCCESS(status)) {
- return (status);
- }
- goto type_error_exit;
- }
-
- /* For reference objects, check that the reference type is correct */
-
- if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) {
- status = acpi_ns_check_reference(pathname, return_object);
- }
-
- return (status);
-
- type_error_exit:
-
- /* Create a string with all expected types for this predefined object */
-
- j = 1;
- type_buffer[0] = 0;
- this_rtype = ACPI_RTYPE_INTEGER;
-
- for (i = 0; i < ACPI_NUM_RTYPES; i++) {
-
- /* If one of the expected types, concatenate the name of this type */
-
- if (expected_btypes & this_rtype) {
- ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]);
- j = 0; /* Use name separator from now on */
- }
- this_rtype <<= 1; /* Next Rtype */
- }
-
- if (package_index == ACPI_NOT_PACKAGE) {
- ACPI_WARNING((AE_INFO,
- "%s: Return type mismatch - found %s, expected %s",
- pathname,
- acpi_ut_get_object_type_name(return_object),
- type_buffer));
- } else {
- ACPI_WARNING((AE_INFO,
- "%s: Return Package type mismatch at index %u - "
- "found %s, expected %s", pathname, package_index,
- acpi_ut_get_object_type_name(return_object),
- type_buffer));
- }
-
- return (AE_AML_OPERAND_TYPE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_check_reference
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * return_object - Object returned from the evaluation of a
- * method or object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check a returned reference object for the correct reference
- * type. The only reference type that can be returned from a
- * predefined method is a named reference. All others are invalid.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_check_reference(char *pathname,
- union acpi_operand_object *return_object)
-{
-
- /*
- * Check the reference object for the correct reference type (opcode).
- * The only type of reference that can be converted to an union acpi_object is
- * a reference to a named object (reference class: NAME)
- */
- if (return_object->reference.class == ACPI_REFCLASS_NAME) {
- return (AE_OK);
- }
-
- ACPI_WARNING((AE_INFO,
- "%s: Return type mismatch - unexpected reference object type [%s] %2.2X",
- pathname, acpi_ut_get_reference_name(return_object),
- return_object->reference.class));
-
- return (AE_AML_OPERAND_TYPE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_repair_object
- *
- * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
- * package_index - Used to determine if target is in a package
- * return_object_ptr - Pointer to the object returned from the
- * evaluation of a method or object
- *
- * RETURN: Status. AE_OK if repair was successful.
- *
- * DESCRIPTION: Attempt to repair/convert a return object of a type that was
- * not expected.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_repair_object(u32 expected_btypes,
- u32 package_index,
- union acpi_operand_object **return_object_ptr)
-{
- union acpi_operand_object *return_object = *return_object_ptr;
- union acpi_operand_object *new_object;
- acpi_size length;
-
- switch (ACPI_GET_OBJECT_TYPE(return_object)) {
- case ACPI_TYPE_BUFFER:
-
- if (!(expected_btypes & ACPI_RTYPE_STRING)) {
- return (AE_AML_OPERAND_TYPE);
- }
-
- /*
- * Have a Buffer, expected a String, convert. Use a to_string
- * conversion, no transform performed on the buffer data. The best
- * example of this is the _BIF method, where the string data from
- * the battery is often (incorrectly) returned as buffer object(s).
- */
- length = 0;
- while ((length < return_object->buffer.length) &&
- (return_object->buffer.pointer[length])) {
- length++;
- }
-
- /* Allocate a new string object */
-
- new_object = acpi_ut_create_string_object(length);
- if (!new_object) {
- return (AE_NO_MEMORY);
- }
-
- /*
- * Copy the raw buffer data with no transform. String is already NULL
- * terminated at Length+1.
- */
- ACPI_MEMCPY(new_object->string.pointer,
- return_object->buffer.pointer, length);
-
- /* Install the new return object */
-
- acpi_ut_remove_reference(return_object);
- *return_object_ptr = new_object;
-
- /*
- * If the object is a package element, we need to:
- * 1. Decrement the reference count of the orignal object, it was
- * incremented when building the package
- * 2. Increment the reference count of the new object, it will be
- * decremented when releasing the package
- */
- if (package_index != ACPI_NOT_PACKAGE) {
- acpi_ut_remove_reference(return_object);
- acpi_ut_add_reference(new_object);
- }
- return (AE_OK);
-
- default:
- break;
- }
-
- return (AE_AML_OPERAND_TYPE);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nssearch - Namespace search
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nssearch")
-
-/* Local prototypes */
-static acpi_status
-acpi_ns_search_parent_tree(u32 target_name,
- struct acpi_namespace_node *node,
- acpi_object_type type,
- struct acpi_namespace_node **return_node);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_search_one_scope
- *
- * PARAMETERS: target_name - Ascii ACPI name to search for
- * parent_node - Starting node where search will begin
- * Type - Object type to match
- * return_node - Where the matched Named obj is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Search a single level of the namespace. Performs a
- * simple search of the specified level, and does not add
- * entries or search parents.
- *
- *
- * Named object lists are built (and subsequently dumped) in the
- * order in which the names are encountered during the namespace load;
- *
- * All namespace searching is linear in this implementation, but
- * could be easily modified to support any improved search
- * algorithm. However, the linear search was chosen for simplicity
- * and because the trees are small and the other interpreter
- * execution overhead is relatively high.
- *
- * Note: CPU execution analysis has shown that the AML interpreter spends
- * a very small percentage of its time searching the namespace. Therefore,
- * the linear search seems to be sufficient, as there would seem to be
- * little value in improving the search.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_search_one_scope(u32 target_name,
- struct acpi_namespace_node *parent_node,
- acpi_object_type type,
- struct acpi_namespace_node **return_node)
-{
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(ns_search_one_scope);
-
-#ifdef ACPI_DEBUG_OUTPUT
- if (ACPI_LV_NAMES & acpi_dbg_level) {
- char *scope_name;
-
- scope_name = acpi_ns_get_external_pathname(parent_node);
- if (scope_name) {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Searching %s (%p) For [%4.4s] (%s)\n",
- scope_name, parent_node,
- ACPI_CAST_PTR(char, &target_name),
- acpi_ut_get_type_name(type)));
-
- ACPI_FREE(scope_name);
- }
- }
-#endif
-
- /*
- * Search for name at this namespace level, which is to say that we
- * must search for the name among the children of this object
- */
- node = parent_node->child;
- while (node) {
-
- /* Check for match against the name */
-
- if (node->name.integer == target_name) {
-
- /* Resolve a control method alias if any */
-
- if (acpi_ns_get_type(node) ==
- ACPI_TYPE_LOCAL_METHOD_ALIAS) {
- node =
- ACPI_CAST_PTR(struct acpi_namespace_node,
- node->object);
- }
-
- /* Found matching entry */
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n",
- ACPI_CAST_PTR(char, &target_name),
- acpi_ut_get_type_name(node->type),
- node,
- acpi_ut_get_node_name(parent_node),
- parent_node));
-
- *return_node = node;
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * The last entry in the list points back to the parent,
- * so a flag is used to indicate the end-of-list
- */
- if (node->flags & ANOBJ_END_OF_PEER_LIST) {
-
- /* Searched entire list, we are done */
-
- break;
- }
-
- /* Didn't match name, move on to the next peer object */
-
- node = node->peer;
- }
-
- /* Searched entire namespace level, not found */
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n",
- ACPI_CAST_PTR(char, &target_name),
- acpi_ut_get_type_name(type),
- acpi_ut_get_node_name(parent_node), parent_node,
- parent_node->child));
-
- return_ACPI_STATUS(AE_NOT_FOUND);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_search_parent_tree
- *
- * PARAMETERS: target_name - Ascii ACPI name to search for
- * Node - Starting node where search will begin
- * Type - Object type to match
- * return_node - Where the matched Node is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Called when a name has not been found in the current namespace
- * level. Before adding it or giving up, ACPI scope rules require
- * searching enclosing scopes in cases identified by acpi_ns_local().
- *
- * "A name is located by finding the matching name in the current
- * name space, and then in the parent name space. If the parent
- * name space does not contain the name, the search continues
- * recursively until either the name is found or the name space
- * does not have a parent (the root of the name space). This
- * indicates that the name is not found" (From ACPI Specification,
- * section 5.3)
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_search_parent_tree(u32 target_name,
- struct acpi_namespace_node *node,
- acpi_object_type type,
- struct acpi_namespace_node **return_node)
-{
- acpi_status status;
- struct acpi_namespace_node *parent_node;
-
- ACPI_FUNCTION_TRACE(ns_search_parent_tree);
-
- parent_node = acpi_ns_get_parent_node(node);
-
- /*
- * If there is no parent (i.e., we are at the root) or type is "local",
- * we won't be searching the parent tree.
- */
- if (!parent_node) {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "[%4.4s] has no parent\n",
- ACPI_CAST_PTR(char, &target_name)));
- return_ACPI_STATUS(AE_NOT_FOUND);
- }
-
- if (acpi_ns_local(type)) {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "[%4.4s] type [%s] must be local to this scope (no parent search)\n",
- ACPI_CAST_PTR(char, &target_name),
- acpi_ut_get_type_name(type)));
- return_ACPI_STATUS(AE_NOT_FOUND);
- }
-
- /* Search the parent tree */
-
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "Searching parent [%4.4s] for [%4.4s]\n",
- acpi_ut_get_node_name(parent_node),
- ACPI_CAST_PTR(char, &target_name)));
-
- /*
- * Search parents until target is found or we have backed up to the root
- */
- while (parent_node) {
- /*
- * Search parent scope. Use TYPE_ANY because we don't care about the
- * object type at this point, we only care about the existence of
- * the actual name we are searching for. Typechecking comes later.
- */
- status =
- acpi_ns_search_one_scope(target_name, parent_node,
- ACPI_TYPE_ANY, return_node);
- if (ACPI_SUCCESS(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Not found here, go up another level (until we reach the root) */
-
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
-
- /* Not found in parent tree */
-
- return_ACPI_STATUS(AE_NOT_FOUND);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_search_and_enter
- *
- * PARAMETERS: target_name - Ascii ACPI name to search for (4 chars)
- * walk_state - Current state of the walk
- * Node - Starting node where search will begin
- * interpreter_mode - Add names only in ACPI_MODE_LOAD_PASS_x.
- * Otherwise,search only.
- * Type - Object type to match
- * Flags - Flags describing the search restrictions
- * return_node - Where the Node is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Search for a name segment in a single namespace level,
- * optionally adding it if it is not found. If the passed
- * Type is not Any and the type previously stored in the
- * entry was Any (i.e. unknown), update the stored type.
- *
- * In ACPI_IMODE_EXECUTE, search only.
- * In other modes, search and add if not found.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_search_and_enter(u32 target_name,
- struct acpi_walk_state *walk_state,
- struct acpi_namespace_node *node,
- acpi_interpreter_mode interpreter_mode,
- acpi_object_type type,
- u32 flags, struct acpi_namespace_node **return_node)
-{
- acpi_status status;
- struct acpi_namespace_node *new_node;
-
- ACPI_FUNCTION_TRACE(ns_search_and_enter);
-
- /* Parameter validation */
-
- if (!node || !target_name || !return_node) {
- ACPI_ERROR((AE_INFO,
- "Null parameter: Node %p Name %X ReturnNode %p",
- node, target_name, return_node));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Name must consist of valid ACPI characters. We will repair the name if
- * necessary because we don't want to abort because of this, but we want
- * all namespace names to be printable. A warning message is appropriate.
- *
- * This issue came up because there are in fact machines that exhibit
- * this problem, and we want to be able to enable ACPI support for them,
- * even though there are a few bad names.
- */
- if (!acpi_ut_valid_acpi_name(target_name)) {
- target_name =
- acpi_ut_repair_name(ACPI_CAST_PTR(char, &target_name));
-
- /* Report warning only if in strict mode or debug mode */
-
- if (!acpi_gbl_enable_interpreter_slack) {
- ACPI_WARNING((AE_INFO,
- "Found bad character(s) in name, repaired: [%4.4s]\n",
- ACPI_CAST_PTR(char, &target_name)));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Found bad character(s) in name, repaired: [%4.4s]\n",
- ACPI_CAST_PTR(char, &target_name)));
- }
- }
-
- /* Try to find the name in the namespace level specified by the caller */
-
- *return_node = ACPI_ENTRY_NOT_FOUND;
- status = acpi_ns_search_one_scope(target_name, node, type, return_node);
- if (status != AE_NOT_FOUND) {
- /*
- * If we found it AND the request specifies that a find is an error,
- * return the error
- */
- if ((status == AE_OK) && (flags & ACPI_NS_ERROR_IF_FOUND)) {
- status = AE_ALREADY_EXISTS;
- }
-
- /* Either found it or there was an error: finished either way */
-
- return_ACPI_STATUS(status);
- }
-
- /*
- * The name was not found. If we are NOT performing the first pass
- * (name entry) of loading the namespace, search the parent tree (all the
- * way to the root if necessary.) We don't want to perform the parent
- * search when the namespace is actually being loaded. We want to perform
- * the search when namespace references are being resolved (load pass 2)
- * and during the execution phase.
- */
- if ((interpreter_mode != ACPI_IMODE_LOAD_PASS1) &&
- (flags & ACPI_NS_SEARCH_PARENT)) {
- /*
- * Not found at this level - search parent tree according to the
- * ACPI specification
- */
- status =
- acpi_ns_search_parent_tree(target_name, node, type,
- return_node);
- if (ACPI_SUCCESS(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* In execute mode, just search, never add names. Exit now */
-
- if (interpreter_mode == ACPI_IMODE_EXECUTE) {
- ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
- "%4.4s Not found in %p [Not adding]\n",
- ACPI_CAST_PTR(char, &target_name), node));
-
- return_ACPI_STATUS(AE_NOT_FOUND);
- }
-
- /* Create the new named object */
-
- new_node = acpi_ns_create_node(target_name);
- if (!new_node) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-#ifdef ACPI_ASL_COMPILER
- /*
- * Node is an object defined by an External() statement
- */
- if (flags & ACPI_NS_EXTERNAL) {
- new_node->flags |= ANOBJ_IS_EXTERNAL;
- }
-#endif
-
- if (flags & ACPI_NS_TEMPORARY) {
- new_node->flags |= ANOBJ_TEMPORARY;
- }
-
- /* Install the new object into the parent's list of children */
-
- acpi_ns_install_node(walk_state, node, new_node, type);
- *return_node = new_node;
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing
- * parents and siblings and Scope manipulation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/amlcode.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsutils")
-
-/* Local prototypes */
-static u8 acpi_ns_valid_path_separator(char sep);
-
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search);
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_report_error
- *
- * PARAMETERS: module_name - Caller's module name (for error output)
- * line_number - Caller's line number (for error output)
- * internal_name - Name or path of the namespace node
- * lookup_status - Exception code from NS lookup
- *
- * RETURN: None
- *
- * DESCRIPTION: Print warning message with full pathname
- *
- ******************************************************************************/
-
-void
-acpi_ns_report_error(const char *module_name,
- u32 line_number,
- const char *internal_name, acpi_status lookup_status)
-{
- acpi_status status;
- u32 bad_name;
- char *name = NULL;
-
- acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
-
- if (lookup_status == AE_BAD_CHARACTER) {
-
- /* There is a non-ascii character in the name */
-
- ACPI_MOVE_32_TO_32(&bad_name, internal_name);
- acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name);
- } else {
- /* Convert path to external format */
-
- status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
- internal_name, NULL, &name);
-
- /* Print target name */
-
- if (ACPI_SUCCESS(status)) {
- acpi_os_printf("[%s]", name);
- } else {
- acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
- }
-
- if (name) {
- ACPI_FREE(name);
- }
- }
-
- acpi_os_printf(" Namespace lookup failure, %s\n",
- acpi_format_exception(lookup_status));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_report_method_error
- *
- * PARAMETERS: module_name - Caller's module name (for error output)
- * line_number - Caller's line number (for error output)
- * Message - Error message to use on failure
- * prefix_node - Prefix relative to the path
- * Path - Path to the node (optional)
- * method_status - Execution status
- *
- * RETURN: None
- *
- * DESCRIPTION: Print warning message with full pathname
- *
- ******************************************************************************/
-
-void
-acpi_ns_report_method_error(const char *module_name,
- u32 line_number,
- const char *message,
- struct acpi_namespace_node *prefix_node,
- const char *path, acpi_status method_status)
-{
- acpi_status status;
- struct acpi_namespace_node *node = prefix_node;
-
- acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
-
- if (path) {
- status =
- acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
- &node);
- if (ACPI_FAILURE(status)) {
- acpi_os_printf("[Could not get node by pathname]");
- }
- }
-
- acpi_ns_print_node_pathname(node, message);
- acpi_os_printf(", %s\n", acpi_format_exception(method_status));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_print_node_pathname
- *
- * PARAMETERS: Node - Object
- * Message - Prefix message
- *
- * DESCRIPTION: Print an object's full namespace pathname
- * Manages allocation/freeing of a pathname buffer
- *
- ******************************************************************************/
-
-void
-acpi_ns_print_node_pathname(struct acpi_namespace_node *node,
- const char *message)
-{
- struct acpi_buffer buffer;
- acpi_status status;
-
- if (!node) {
- acpi_os_printf("[NULL NAME]");
- return;
- }
-
- /* Convert handle to full pathname and print it (with supplied message) */
-
- buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-
- status = acpi_ns_handle_to_pathname(node, &buffer);
- if (ACPI_SUCCESS(status)) {
- if (message) {
- acpi_os_printf("%s ", message);
- }
-
- acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node);
- ACPI_FREE(buffer.pointer);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_valid_root_prefix
- *
- * PARAMETERS: Prefix - Character to be checked
- *
- * RETURN: TRUE if a valid prefix
- *
- * DESCRIPTION: Check if a character is a valid ACPI Root prefix
- *
- ******************************************************************************/
-
-u8 acpi_ns_valid_root_prefix(char prefix)
-{
-
- return ((u8) (prefix == '\\'));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_valid_path_separator
- *
- * PARAMETERS: Sep - Character to be checked
- *
- * RETURN: TRUE if a valid path separator
- *
- * DESCRIPTION: Check if a character is a valid ACPI path separator
- *
- ******************************************************************************/
-
-static u8 acpi_ns_valid_path_separator(char sep)
-{
-
- return ((u8) (sep == '.'));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_type
- *
- * PARAMETERS: Node - Parent Node to be examined
- *
- * RETURN: Type field from Node whose handle is passed
- *
- * DESCRIPTION: Return the type of a Namespace node
- *
- ******************************************************************************/
-
-acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
-{
- ACPI_FUNCTION_TRACE(ns_get_type);
-
- if (!node) {
- ACPI_WARNING((AE_INFO, "Null Node parameter"));
- return_UINT32(ACPI_TYPE_ANY);
- }
-
- return_UINT32((acpi_object_type) node->type);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_local
- *
- * PARAMETERS: Type - A namespace object type
- *
- * RETURN: LOCAL if names must be found locally in objects of the
- * passed type, 0 if enclosing scopes should be searched
- *
- * DESCRIPTION: Returns scope rule for the given object type.
- *
- ******************************************************************************/
-
-u32 acpi_ns_local(acpi_object_type type)
-{
- ACPI_FUNCTION_TRACE(ns_local);
-
- if (!acpi_ut_valid_object_type(type)) {
-
- /* Type code out of range */
-
- ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
- return_UINT32(ACPI_NS_NORMAL);
- }
-
- return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_internal_name_length
- *
- * PARAMETERS: Info - Info struct initialized with the
- * external name pointer.
- *
- * RETURN: None
- *
- * DESCRIPTION: Calculate the length of the internal (AML) namestring
- * corresponding to the external (ASL) namestring.
- *
- ******************************************************************************/
-
-void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
-{
- const char *next_external_char;
- u32 i;
-
- ACPI_FUNCTION_ENTRY();
-
- next_external_char = info->external_name;
- info->num_carats = 0;
- info->num_segments = 0;
- info->fully_qualified = FALSE;
-
- /*
- * For the internal name, the required length is 4 bytes per segment, plus
- * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null
- * (which is not really needed, but no there's harm in putting it there)
- *
- * strlen() + 1 covers the first name_seg, which has no path separator
- */
- if (acpi_ns_valid_root_prefix(*next_external_char)) {
- info->fully_qualified = TRUE;
- next_external_char++;
-
- /* Skip redundant root_prefix, like \\_SB.PCI0.SBRG.EC0 */
-
- while (acpi_ns_valid_root_prefix(*next_external_char)) {
- next_external_char++;
- }
- } else {
- /*
- * Handle Carat prefixes
- */
- while (*next_external_char == '^') {
- info->num_carats++;
- next_external_char++;
- }
- }
-
- /*
- * Determine the number of ACPI name "segments" by counting the number of
- * path separators within the string. Start with one segment since the
- * segment count is [(# separators) + 1], and zero separators is ok.
- */
- if (*next_external_char) {
- info->num_segments = 1;
- for (i = 0; next_external_char[i]; i++) {
- if (acpi_ns_valid_path_separator(next_external_char[i])) {
- info->num_segments++;
- }
- }
- }
-
- info->length = (ACPI_NAME_SIZE * info->num_segments) +
- 4 + info->num_carats;
-
- info->next_external_char = next_external_char;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_build_internal_name
- *
- * PARAMETERS: Info - Info struct fully initialized
- *
- * RETURN: Status
- *
- * DESCRIPTION: Construct the internal (AML) namestring
- * corresponding to the external (ASL) namestring.
- *
- ******************************************************************************/
-
-acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
-{
- u32 num_segments = info->num_segments;
- char *internal_name = info->internal_name;
- const char *external_name = info->next_external_char;
- char *result = NULL;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ns_build_internal_name);
-
- /* Setup the correct prefixes, counts, and pointers */
-
- if (info->fully_qualified) {
- internal_name[0] = '\\';
-
- if (num_segments <= 1) {
- result = &internal_name[1];
- } else if (num_segments == 2) {
- internal_name[1] = AML_DUAL_NAME_PREFIX;
- result = &internal_name[2];
- } else {
- internal_name[1] = AML_MULTI_NAME_PREFIX_OP;
- internal_name[2] = (char)num_segments;
- result = &internal_name[3];
- }
- } else {
- /*
- * Not fully qualified.
- * Handle Carats first, then append the name segments
- */
- i = 0;
- if (info->num_carats) {
- for (i = 0; i < info->num_carats; i++) {
- internal_name[i] = '^';
- }
- }
-
- if (num_segments <= 1) {
- result = &internal_name[i];
- } else if (num_segments == 2) {
- internal_name[i] = AML_DUAL_NAME_PREFIX;
- result = &internal_name[(acpi_size) i + 1];
- } else {
- internal_name[i] = AML_MULTI_NAME_PREFIX_OP;
- internal_name[(acpi_size) i + 1] = (char)num_segments;
- result = &internal_name[(acpi_size) i + 2];
- }
- }
-
- /* Build the name (minus path separators) */
-
- for (; num_segments; num_segments--) {
- for (i = 0; i < ACPI_NAME_SIZE; i++) {
- if (acpi_ns_valid_path_separator(*external_name) ||
- (*external_name == 0)) {
-
- /* Pad the segment with underscore(s) if segment is short */
-
- result[i] = '_';
- } else {
- /* Convert the character to uppercase and save it */
-
- result[i] =
- (char)ACPI_TOUPPER((int)*external_name);
- external_name++;
- }
- }
-
- /* Now we must have a path separator, or the pathname is bad */
-
- if (!acpi_ns_valid_path_separator(*external_name) &&
- (*external_name != 0)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Move on the next segment */
-
- external_name++;
- result += ACPI_NAME_SIZE;
- }
-
- /* Terminate the string */
-
- *result = 0;
-
- if (info->fully_qualified) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Returning [%p] (abs) \"\\%s\"\n",
- internal_name, internal_name));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n",
- internal_name, internal_name));
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_internalize_name
- *
- * PARAMETERS: *external_name - External representation of name
- * **Converted Name - Where to return the resulting
- * internal represention of the name
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0")
- * to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
- *
- *******************************************************************************/
-
-acpi_status
-acpi_ns_internalize_name(const char *external_name, char **converted_name)
-{
- char *internal_name;
- struct acpi_namestring_info info;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ns_internalize_name);
-
- if ((!external_name) || (*external_name == 0) || (!converted_name)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Get the length of the new internal name */
-
- info.external_name = external_name;
- acpi_ns_get_internal_name_length(&info);
-
- /* We need a segment to store the internal name */
-
- internal_name = ACPI_ALLOCATE_ZEROED(info.length);
- if (!internal_name) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Build the name */
-
- info.internal_name = internal_name;
- status = acpi_ns_build_internal_name(&info);
- if (ACPI_FAILURE(status)) {
- ACPI_FREE(internal_name);
- return_ACPI_STATUS(status);
- }
-
- *converted_name = internal_name;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_externalize_name
- *
- * PARAMETERS: internal_name_length - Lenth of the internal name below
- * internal_name - Internal representation of name
- * converted_name_length - Where the length is returned
- * converted_name - Where the resulting external name
- * is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
- * to its external (printable) form (e.g. "\_PR_.CPU0")
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_externalize_name(u32 internal_name_length,
- const char *internal_name,
- u32 * converted_name_length, char **converted_name)
-{
- u32 names_index = 0;
- u32 num_segments = 0;
- u32 required_length;
- u32 prefix_length = 0;
- u32 i = 0;
- u32 j = 0;
-
- ACPI_FUNCTION_TRACE(ns_externalize_name);
-
- if (!internal_name_length || !internal_name || !converted_name) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Check for a prefix (one '\' | one or more '^').
- */
- switch (internal_name[0]) {
- case '\\':
- prefix_length = 1;
- break;
-
- case '^':
- for (i = 0; i < internal_name_length; i++) {
- if (internal_name[i] == '^') {
- prefix_length = i + 1;
- } else {
- break;
- }
- }
-
- if (i == internal_name_length) {
- prefix_length = i;
- }
-
- break;
-
- default:
- break;
- }
-
- /*
- * Check for object names. Note that there could be 0-255 of these
- * 4-byte elements.
- */
- if (prefix_length < internal_name_length) {
- switch (internal_name[prefix_length]) {
- case AML_MULTI_NAME_PREFIX_OP:
-
- /* <count> 4-byte names */
-
- names_index = prefix_length + 2;
- num_segments = (u8)
- internal_name[(acpi_size) prefix_length + 1];
- break;
-
- case AML_DUAL_NAME_PREFIX:
-
- /* Two 4-byte names */
-
- names_index = prefix_length + 1;
- num_segments = 2;
- break;
-
- case 0:
-
- /* null_name */
-
- names_index = 0;
- num_segments = 0;
- break;
-
- default:
-
- /* one 4-byte name */
-
- names_index = prefix_length;
- num_segments = 1;
- break;
- }
- }
-
- /*
- * Calculate the length of converted_name, which equals the length
- * of the prefix, length of all object names, length of any required
- * punctuation ('.') between object names, plus the NULL terminator.
- */
- required_length = prefix_length + (4 * num_segments) +
- ((num_segments > 0) ? (num_segments - 1) : 0) + 1;
-
- /*
- * Check to see if we're still in bounds. If not, there's a problem
- * with internal_name (invalid format).
- */
- if (required_length > internal_name_length) {
- ACPI_ERROR((AE_INFO, "Invalid internal name"));
- return_ACPI_STATUS(AE_BAD_PATHNAME);
- }
-
- /*
- * Build converted_name
- */
- *converted_name = ACPI_ALLOCATE_ZEROED(required_length);
- if (!(*converted_name)) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- j = 0;
-
- for (i = 0; i < prefix_length; i++) {
- (*converted_name)[j++] = internal_name[i];
- }
-
- if (num_segments > 0) {
- for (i = 0; i < num_segments; i++) {
- if (i > 0) {
- (*converted_name)[j++] = '.';
- }
-
- (*converted_name)[j++] = internal_name[names_index++];
- (*converted_name)[j++] = internal_name[names_index++];
- (*converted_name)[j++] = internal_name[names_index++];
- (*converted_name)[j++] = internal_name[names_index++];
- }
- }
-
- if (converted_name_length) {
- *converted_name_length = (u32) required_length;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_map_handle_to_node
- *
- * PARAMETERS: Handle - Handle to be converted to an Node
- *
- * RETURN: A Name table entry pointer
- *
- * DESCRIPTION: Convert a namespace handle to a real Node
- *
- * Note: Real integer handles would allow for more verification
- * and keep all pointers within this subsystem - however this introduces
- * more (and perhaps unnecessary) overhead.
- *
- ******************************************************************************/
-
-struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
-{
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Simple implementation
- */
- if ((!handle) || (handle == ACPI_ROOT_OBJECT)) {
- return (acpi_gbl_root_node);
- }
-
- /* We can at least attempt to verify the handle */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(handle) != ACPI_DESC_TYPE_NAMED) {
- return (NULL);
- }
-
- return (ACPI_CAST_PTR(struct acpi_namespace_node, handle));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_convert_entry_to_handle
- *
- * PARAMETERS: Node - Node to be converted to a Handle
- *
- * RETURN: A user handle
- *
- * DESCRIPTION: Convert a real Node to a namespace handle
- *
- ******************************************************************************/
-
-acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node)
-{
-
- /*
- * Simple implementation for now;
- */
- return ((acpi_handle) node);
-
-/* Example future implementation ---------------------
-
- if (!Node)
- {
- return (NULL);
- }
-
- if (Node == acpi_gbl_root_node)
- {
- return (ACPI_ROOT_OBJECT);
- }
-
- return ((acpi_handle) Node);
-------------------------------------------------------*/
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_terminate
- *
- * PARAMETERS: none
- *
- * RETURN: none
- *
- * DESCRIPTION: free memory allocated for namespace and ACPI table storage.
- *
- ******************************************************************************/
-
-void acpi_ns_terminate(void)
-{
- union acpi_operand_object *obj_desc;
-
- ACPI_FUNCTION_TRACE(ns_terminate);
-
- /*
- * 1) Free the entire namespace -- all nodes and objects
- *
- * Delete all object descriptors attached to namepsace nodes
- */
- acpi_ns_delete_namespace_subtree(acpi_gbl_root_node);
-
- /* Detach any objects attached to the root */
-
- obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node);
- if (obj_desc) {
- acpi_ns_detach_object(acpi_gbl_root_node);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n"));
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_opens_scope
- *
- * PARAMETERS: Type - A valid namespace type
- *
- * RETURN: NEWSCOPE if the passed type "opens a name scope" according
- * to the ACPI specification, else 0
- *
- ******************************************************************************/
-
-u32 acpi_ns_opens_scope(acpi_object_type type)
-{
- ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type));
-
- if (!acpi_ut_valid_object_type(type)) {
-
- /* type code out of range */
-
- ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
- return_UINT32(ACPI_NS_NORMAL);
- }
-
- return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_node
- *
- * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The
- * \ (backslash) and ^ (carat) prefixes, and the
- * . (period) to separate segments are supported.
- * prefix_node - Root of subtree to be searched, or NS_ALL for the
- * root of the name space. If Name is fully
- * qualified (first s8 is '\'), the passed value
- * of Scope will not be accessed.
- * Flags - Used to indicate whether to perform upsearch or
- * not.
- * return_node - Where the Node is returned
- *
- * DESCRIPTION: Look up a name relative to a given scope and return the
- * corresponding Node. NOTE: Scope can be null.
- *
- * MUTEX: Locks namespace
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
- const char *pathname,
- u32 flags, struct acpi_namespace_node **return_node)
-{
- union acpi_generic_state scope_info;
- acpi_status status;
- char *internal_path;
-
- ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname);
-
- if (!pathname) {
- *return_node = prefix_node;
- if (!prefix_node) {
- *return_node = acpi_gbl_root_node;
- }
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Convert path to internal representation */
-
- status = acpi_ns_internalize_name(pathname, &internal_path);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Must lock namespace during lookup */
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Setup lookup scope (search starting point) */
-
- scope_info.scope.node = prefix_node;
-
- /* Lookup the name in the namespace */
-
- status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY,
- ACPI_IMODE_EXECUTE,
- (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL,
- return_node);
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n",
- pathname, acpi_format_exception(status)));
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-
- cleanup:
- ACPI_FREE(internal_path);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_parent_node
- *
- * PARAMETERS: Node - Current table entry
- *
- * RETURN: Parent entry of the given entry
- *
- * DESCRIPTION: Obtain the parent entry for a given entry in the namespace.
- *
- ******************************************************************************/
-
-struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node
- *node)
-{
- ACPI_FUNCTION_ENTRY();
-
- if (!node) {
- return (NULL);
- }
-
- /*
- * Walk to the end of this peer list. The last entry is marked with a flag
- * and the peer pointer is really a pointer back to the parent. This saves
- * putting a parent back pointer in each and every named object!
- */
- while (!(node->flags & ANOBJ_END_OF_PEER_LIST)) {
- node = node->peer;
- }
-
- return (node->peer);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_next_valid_node
- *
- * PARAMETERS: Node - Current table entry
- *
- * RETURN: Next valid Node in the linked node list. NULL if no more valid
- * nodes.
- *
- * DESCRIPTION: Find the next valid node within a name table.
- * Useful for implementing NULL-end-of-list loops.
- *
- ******************************************************************************/
-
-struct acpi_namespace_node *acpi_ns_get_next_valid_node(struct
- acpi_namespace_node
- *node)
-{
-
- /* If we are at the end of this peer list, return NULL */
-
- if (node->flags & ANOBJ_END_OF_PEER_LIST) {
- return NULL;
- }
-
- /* Otherwise just return the next peer */
-
- return (node->peer);
-}
-
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_find_parent_name
- *
- * PARAMETERS: *child_node - Named Obj whose name is to be found
- *
- * RETURN: The ACPI name
- *
- * DESCRIPTION: Search for the given obj in its parent scope and return the
- * name segment, or "????" if the parent name can't be found
- * (which "should not happen").
- *
- ******************************************************************************/
-
-acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node)
-{
- struct acpi_namespace_node *parent_node;
-
- ACPI_FUNCTION_TRACE(ns_find_parent_name);
-
- if (child_node) {
-
- /* Valid entry. Get the parent Node */
-
- parent_node = acpi_ns_get_parent_node(child_node);
- if (parent_node) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Parent of %p [%4.4s] is %p [%4.4s]\n",
- child_node,
- acpi_ut_get_node_name(child_node),
- parent_node,
- acpi_ut_get_node_name(parent_node)));
-
- if (parent_node->name.integer) {
- return_VALUE((acpi_name) parent_node->name.
- integer);
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Unable to find parent of %p (%4.4s)\n",
- child_node,
- acpi_ut_get_node_name(child_node)));
- }
-
- return_VALUE(ACPI_UNKNOWN_NAME);
-}
-#endif
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nswalk - Functions for walking the ACPI namespace
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nswalk")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_next_node
- *
- * PARAMETERS: Type - Type of node to be searched for
- * parent_node - Parent node whose children we are
- * getting
- * child_node - Previous child that was found.
- * The NEXT child will be returned
- *
- * RETURN: struct acpi_namespace_node - Pointer to the NEXT child or NULL if
- * none is found.
- *
- * DESCRIPTION: Return the next peer node within the namespace. If Handle
- * is valid, Scope is ignored. Otherwise, the first node
- * within Scope is returned.
- *
- ******************************************************************************/
-struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
- *parent_node, struct acpi_namespace_node
- *child_node)
-{
- struct acpi_namespace_node *next_node = NULL;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!child_node) {
-
- /* It's really the parent's _scope_ that we want */
-
- next_node = parent_node->child;
- }
-
- else {
- /* Start search at the NEXT node */
-
- next_node = acpi_ns_get_next_valid_node(child_node);
- }
-
- /* If any type is OK, we are done */
-
- if (type == ACPI_TYPE_ANY) {
-
- /* next_node is NULL if we are at the end-of-list */
-
- return (next_node);
- }
-
- /* Must search for the node -- but within this scope only */
-
- while (next_node) {
-
- /* If type matches, we are done */
-
- if (next_node->type == type) {
- return (next_node);
- }
-
- /* Otherwise, move on to the next node */
-
- next_node = acpi_ns_get_next_valid_node(next_node);
- }
-
- /* Not found */
-
- return (NULL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_walk_namespace
- *
- * PARAMETERS: Type - acpi_object_type to search for
- * start_node - Handle in namespace where search begins
- * max_depth - Depth to which search is to reach
- * Flags - Whether to unlock the NS before invoking
- * the callback routine
- * user_function - Called when an object of "Type" is found
- * Context - Passed to user function
- * return_value - from the user_function if terminated early.
- * Otherwise, returns NULL.
- * RETURNS: Status
- *
- * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
- * starting (and ending) at the node specified by start_handle.
- * The user_function is called whenever a node that matches
- * the type parameter is found. If the user function returns
- * a non-zero value, the search is terminated immediately and this
- * value is returned to the caller.
- *
- * The point of this procedure is to provide a generic namespace
- * walk routine that can be called from multiple places to
- * provide multiple services; the User Function can be tailored
- * to each task, whether it is a print function, a compare
- * function, etc.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ns_walk_namespace(acpi_object_type type,
- acpi_handle start_node,
- u32 max_depth,
- u32 flags,
- acpi_walk_callback user_function,
- void *context, void **return_value)
-{
- acpi_status status;
- acpi_status mutex_status;
- struct acpi_namespace_node *child_node;
- struct acpi_namespace_node *parent_node;
- acpi_object_type child_type;
- u32 level;
-
- ACPI_FUNCTION_TRACE(ns_walk_namespace);
-
- /* Special case for the namespace Root Node */
-
- if (start_node == ACPI_ROOT_OBJECT) {
- start_node = acpi_gbl_root_node;
- }
-
- /* Null child means "get first node" */
-
- parent_node = start_node;
- child_node = NULL;
- child_type = ACPI_TYPE_ANY;
- level = 1;
-
- /*
- * Traverse the tree of nodes until we bubble back up to where we
- * started. When Level is zero, the loop is done because we have
- * bubbled up to (and passed) the original parent handle (start_entry)
- */
- while (level > 0) {
-
- /* Get the next node in this scope. Null if not found */
-
- status = AE_OK;
- child_node =
- acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
- child_node);
- if (child_node) {
-
- /* Found next child, get the type if we are not searching for ANY */
-
- if (type != ACPI_TYPE_ANY) {
- child_type = child_node->type;
- }
-
- /*
- * Ignore all temporary namespace nodes (created during control
- * method execution) unless told otherwise. These temporary nodes
- * can cause a race condition because they can be deleted during the
- * execution of the user function (if the namespace is unlocked before
- * invocation of the user function.) Only the debugger namespace dump
- * will examine the temporary nodes.
- */
- if ((child_node->flags & ANOBJ_TEMPORARY) &&
- !(flags & ACPI_NS_WALK_TEMP_NODES)) {
- status = AE_CTRL_DEPTH;
- }
-
- /* Type must match requested type */
-
- else if (child_type == type) {
- /*
- * Found a matching node, invoke the user callback function.
- * Unlock the namespace if flag is set.
- */
- if (flags & ACPI_NS_WALK_UNLOCK) {
- mutex_status =
- acpi_ut_release_mutex
- (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(mutex_status)) {
- return_ACPI_STATUS
- (mutex_status);
- }
- }
-
- status =
- user_function(child_node, level, context,
- return_value);
-
- if (flags & ACPI_NS_WALK_UNLOCK) {
- mutex_status =
- acpi_ut_acquire_mutex
- (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(mutex_status)) {
- return_ACPI_STATUS
- (mutex_status);
- }
- }
-
- switch (status) {
- case AE_OK:
- case AE_CTRL_DEPTH:
-
- /* Just keep going */
- break;
-
- case AE_CTRL_TERMINATE:
-
- /* Exit now, with OK status */
-
- return_ACPI_STATUS(AE_OK);
-
- default:
-
- /* All others are valid exceptions */
-
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Depth first search: Attempt to go down another level in the
- * namespace if we are allowed to. Don't go any further if we have
- * reached the caller specified maximum depth or if the user
- * function has specified that the maximum depth has been reached.
- */
- if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
- if (acpi_ns_get_next_node
- (ACPI_TYPE_ANY, child_node, NULL)) {
-
- /* There is at least one child of this node, visit it */
-
- level++;
- parent_node = child_node;
- child_node = NULL;
- }
- }
- } else {
- /*
- * No more children of this node (acpi_ns_get_next_node failed), go
- * back upwards in the namespace tree to the node's parent.
- */
- level--;
- child_node = parent_node;
- parent_node = acpi_ns_get_parent_node(parent_node);
- }
- }
-
- /* Complete walk, not terminated by user function */
-
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nsxfeval - Public interfaces to the ACPI subsystem
- * ACPI Object evaluation interfaces
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsxfeval")
-
-/* Local prototypes */
-static void acpi_ns_resolve_references(struct acpi_evaluate_info *info);
-
-#ifdef ACPI_FUTURE_USAGE
-/*******************************************************************************
- *
- * FUNCTION: acpi_evaluate_object_typed
- *
- * PARAMETERS: Handle - Object handle (optional)
- * Pathname - Object pathname (optional)
- * external_params - List of parameters to pass to method,
- * terminated by NULL. May be NULL
- * if no parameters are being passed.
- * return_buffer - Where to put method's return value (if
- * any). If NULL, no value is returned.
- * return_type - Expected type of return object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Find and evaluate the given object, passing the given
- * parameters if necessary. One of "Handle" or "Pathname" must
- * be valid (non-null)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_evaluate_object_typed(acpi_handle handle,
- acpi_string pathname,
- struct acpi_object_list *external_params,
- struct acpi_buffer *return_buffer,
- acpi_object_type return_type)
-{
- acpi_status status;
- u8 must_free = FALSE;
-
- ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed);
-
- /* Return buffer must be valid */
-
- if (!return_buffer) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (return_buffer->length == ACPI_ALLOCATE_BUFFER) {
- must_free = TRUE;
- }
-
- /* Evaluate the object */
-
- status =
- acpi_evaluate_object(handle, pathname, external_params,
- return_buffer);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Type ANY means "don't care" */
-
- if (return_type == ACPI_TYPE_ANY) {
- return_ACPI_STATUS(AE_OK);
- }
-
- if (return_buffer->length == 0) {
-
- /* Error because caller specifically asked for a return value */
-
- ACPI_ERROR((AE_INFO, "No return value"));
- return_ACPI_STATUS(AE_NULL_OBJECT);
- }
-
- /* Examine the object type returned from evaluate_object */
-
- if (((union acpi_object *)return_buffer->pointer)->type == return_type) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Return object type does not match requested type */
-
- ACPI_ERROR((AE_INFO,
- "Incorrect return type [%s] requested [%s]",
- acpi_ut_get_type_name(((union acpi_object *)return_buffer->
- pointer)->type),
- acpi_ut_get_type_name(return_type)));
-
- if (must_free) {
-
- /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
-
- ACPI_FREE(return_buffer->pointer);
- return_buffer->pointer = NULL;
- }
-
- return_buffer->length = 0;
- return_ACPI_STATUS(AE_TYPE);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
-#endif /* ACPI_FUTURE_USAGE */
-/*******************************************************************************
- *
- * FUNCTION: acpi_evaluate_object
- *
- * PARAMETERS: Handle - Object handle (optional)
- * Pathname - Object pathname (optional)
- * external_params - List of parameters to pass to method,
- * terminated by NULL. May be NULL
- * if no parameters are being passed.
- * return_buffer - Where to put method's return value (if
- * any). If NULL, no value is returned.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Find and evaluate the given object, passing the given
- * parameters if necessary. One of "Handle" or "Pathname" must
- * be valid (non-null)
- *
- ******************************************************************************/
-acpi_status
-acpi_evaluate_object(acpi_handle handle,
- acpi_string pathname,
- struct acpi_object_list *external_params,
- struct acpi_buffer *return_buffer)
-{
- acpi_status status;
- struct acpi_evaluate_info *info;
- acpi_size buffer_space_needed;
- u32 i;
-
- ACPI_FUNCTION_TRACE(acpi_evaluate_object);
-
- /* Allocate and initialize the evaluation information block */
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- info->pathname = pathname;
-
- /* Convert and validate the device handle */
-
- info->prefix_node = acpi_ns_map_handle_to_node(handle);
- if (!info->prefix_node) {
- status = AE_BAD_PARAMETER;
- goto cleanup;
- }
-
- /*
- * If there are parameters to be passed to a control method, the external
- * objects must all be converted to internal objects
- */
- if (external_params && external_params->count) {
- /*
- * Allocate a new parameter block for the internal objects
- * Add 1 to count to allow for null terminated internal list
- */
- info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size)
- external_params->
- count +
- 1) * sizeof(void *));
- if (!info->parameters) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Convert each external object in the list to an internal object */
-
- for (i = 0; i < external_params->count; i++) {
- status =
- acpi_ut_copy_eobject_to_iobject(&external_params->
- pointer[i],
- &info->
- parameters[i]);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
- }
- info->parameters[external_params->count] = NULL;
- }
-
- /*
- * Three major cases:
- * 1) Fully qualified pathname
- * 2) No handle, not fully qualified pathname (error)
- * 3) Valid handle
- */
- if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) {
-
- /* The path is fully qualified, just evaluate by name */
-
- info->prefix_node = NULL;
- status = acpi_ns_evaluate(info);
- } else if (!handle) {
- /*
- * A handle is optional iff a fully qualified pathname is specified.
- * Since we've already handled fully qualified names above, this is
- * an error
- */
- if (!pathname) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Both Handle and Pathname are NULL"));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Null Handle with relative pathname [%s]",
- pathname));
- }
-
- status = AE_BAD_PARAMETER;
- } else {
- /* We have a namespace a node and a possible relative path */
-
- status = acpi_ns_evaluate(info);
- }
-
- /*
- * If we are expecting a return value, and all went well above,
- * copy the return value to an external object.
- */
- if (return_buffer) {
- if (!info->return_object) {
- return_buffer->length = 0;
- } else {
- if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) ==
- ACPI_DESC_TYPE_NAMED) {
- /*
- * If we received a NS Node as a return object, this means that
- * the object we are evaluating has nothing interesting to
- * return (such as a mutex, etc.) We return an error because
- * these types are essentially unsupported by this interface.
- * We don't check up front because this makes it easier to add
- * support for various types at a later date if necessary.
- */
- status = AE_TYPE;
- info->return_object = NULL; /* No need to delete a NS Node */
- return_buffer->length = 0;
- }
-
- if (ACPI_SUCCESS(status)) {
-
- /* Dereference Index and ref_of references */
-
- acpi_ns_resolve_references(info);
-
- /* Get the size of the returned object */
-
- status =
- acpi_ut_get_object_size(info->return_object,
- &buffer_space_needed);
- if (ACPI_SUCCESS(status)) {
-
- /* Validate/Allocate/Clear caller buffer */
-
- status =
- acpi_ut_initialize_buffer
- (return_buffer,
- buffer_space_needed);
- if (ACPI_FAILURE(status)) {
- /*
- * Caller's buffer is too small or a new one can't
- * be allocated
- */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Needed buffer size %X, %s\n",
- (u32)
- buffer_space_needed,
- acpi_format_exception
- (status)));
- } else {
- /* We have enough space for the object, build it */
-
- status =
- acpi_ut_copy_iobject_to_eobject
- (info->return_object,
- return_buffer);
- }
- }
- }
- }
- }
-
- if (info->return_object) {
- /*
- * Delete the internal return object. NOTE: Interpreter must be
- * locked to avoid race condition.
- */
- acpi_ex_enter_interpreter();
-
- /* Remove one reference on the return object (should delete it) */
-
- acpi_ut_remove_reference(info->return_object);
- acpi_ex_exit_interpreter();
- }
-
- cleanup:
-
- /* Free the input parameter list (if we created one) */
-
- if (info->parameters) {
-
- /* Free the allocated parameter block */
-
- acpi_ut_delete_internal_object_list(info->parameters);
- }
-
- ACPI_FREE(info);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_evaluate_object)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_resolve_references
- *
- * PARAMETERS: Info - Evaluation info block
- *
- * RETURN: Info->return_object is replaced with the dereferenced object
- *
- * DESCRIPTION: Dereference certain reference objects. Called before an
- * internal return object is converted to an external union acpi_object.
- *
- * Performs an automatic dereference of Index and ref_of reference objects.
- * These reference objects are not supported by the union acpi_object, so this is a
- * last resort effort to return something useful. Also, provides compatibility
- * with other ACPI implementations.
- *
- * NOTE: does not handle references within returned package objects or nested
- * references, but this support could be added later if found to be necessary.
- *
- ******************************************************************************/
-static void acpi_ns_resolve_references(struct acpi_evaluate_info *info)
-{
- union acpi_operand_object *obj_desc = NULL;
- struct acpi_namespace_node *node;
-
- /* We are interested in reference objects only */
-
- if (ACPI_GET_OBJECT_TYPE(info->return_object) !=
- ACPI_TYPE_LOCAL_REFERENCE) {
- return;
- }
-
- /*
- * Two types of references are supported - those created by Index and
- * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted
- * to an union acpi_object, so it is not dereferenced here. A ddb_handle
- * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to
- * an union acpi_object.
- */
- switch (info->return_object->reference.class) {
- case ACPI_REFCLASS_INDEX:
-
- obj_desc = *(info->return_object->reference.where);
- break;
-
- case ACPI_REFCLASS_REFOF:
-
- node = info->return_object->reference.object;
- if (node) {
- obj_desc = node->object;
- }
- break;
-
- default:
- return;
- }
-
- /* Replace the existing reference object */
-
- if (obj_desc) {
- acpi_ut_add_reference(obj_desc);
- acpi_ut_remove_reference(info->return_object);
- info->return_object = obj_desc;
- }
-
- return;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_walk_namespace
- *
- * PARAMETERS: Type - acpi_object_type to search for
- * start_object - Handle in namespace where search begins
- * max_depth - Depth to which search is to reach
- * user_function - Called when an object of "Type" is found
- * Context - Passed to user function
- * return_value - Location where return value of
- * user_function is put if terminated early
- *
- * RETURNS Return value from the user_function if terminated early.
- * Otherwise, returns NULL.
- *
- * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
- * starting (and ending) at the object specified by start_handle.
- * The user_function is called whenever an object that matches
- * the type parameter is found. If the user function returns
- * a non-zero value, the search is terminated immediately and this
- * value is returned to the caller.
- *
- * The point of this procedure is to provide a generic namespace
- * walk routine that can be called from multiple places to
- * provide multiple services; the User Function can be tailored
- * to each task, whether it is a print function, a compare
- * function, etc.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_walk_namespace(acpi_object_type type,
- acpi_handle start_object,
- u32 max_depth,
- acpi_walk_callback user_function,
- void *context, void **return_value)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_walk_namespace);
-
- /* Parameter validation */
-
- if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * Lock the namespace around the walk.
- * The namespace will be unlocked/locked around each call
- * to the user function - since this function
- * must be allowed to make Acpi calls itself.
- */
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_ns_walk_namespace(type, start_object, max_depth,
- ACPI_NS_WALK_UNLOCK,
- user_function, context, return_value);
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_walk_namespace)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_get_device_callback
- *
- * PARAMETERS: Callback from acpi_get_device
- *
- * RETURN: Status
- *
- * DESCRIPTION: Takes callbacks from walk_namespace and filters out all non-
- * present devices, or if they specified a HID, it filters based
- * on that.
- *
- ******************************************************************************/
-static acpi_status
-acpi_ns_get_device_callback(acpi_handle obj_handle,
- u32 nesting_level,
- void *context, void **return_value)
-{
- struct acpi_get_devices_info *info = context;
- acpi_status status;
- struct acpi_namespace_node *node;
- u32 flags;
- struct acpica_device_id hid;
- struct acpi_compatible_id_list *cid;
- u32 i;
- int found;
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- node = acpi_ns_map_handle_to_node(obj_handle);
- status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- if (!node) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Run _STA to determine if device is present */
-
- status = acpi_ut_execute_STA(node, &flags);
- if (ACPI_FAILURE(status)) {
- return (AE_CTRL_DEPTH);
- }
-
- if (!(flags & ACPI_STA_DEVICE_PRESENT) &&
- !(flags & ACPI_STA_DEVICE_FUNCTIONING)) {
- /*
- * Don't examine the children of the device only when the
- * device is neither present nor functional. See ACPI spec,
- * description of _STA for more information.
- */
- return (AE_CTRL_DEPTH);
- }
-
- /* Filter based on device HID & CID */
-
- if (info->hid != NULL) {
- status = acpi_ut_execute_HID(node, &hid);
- if (status == AE_NOT_FOUND) {
- return (AE_OK);
- } else if (ACPI_FAILURE(status)) {
- return (AE_CTRL_DEPTH);
- }
-
- if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) {
-
- /* Get the list of Compatible IDs */
-
- status = acpi_ut_execute_CID(node, &cid);
- if (status == AE_NOT_FOUND) {
- return (AE_OK);
- } else if (ACPI_FAILURE(status)) {
- return (AE_CTRL_DEPTH);
- }
-
- /* Walk the CID list */
-
- found = 0;
- for (i = 0; i < cid->count; i++) {
- if (ACPI_STRNCMP(cid->id[i].value, info->hid,
- sizeof(struct
- acpi_compatible_id)) ==
- 0) {
- found = 1;
- break;
- }
- }
- ACPI_FREE(cid);
- if (!found)
- return (AE_OK);
- }
- }
-
- status = info->user_function(obj_handle, nesting_level, info->context,
- return_value);
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_devices
- *
- * PARAMETERS: HID - HID to search for. Can be NULL.
- * user_function - Called when a matching object is found
- * Context - Passed to user function
- * return_value - Location where return value of
- * user_function is put if terminated early
- *
- * RETURNS Return value from the user_function if terminated early.
- * Otherwise, returns NULL.
- *
- * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
- * starting (and ending) at the object specified by start_handle.
- * The user_function is called whenever an object of type
- * Device is found. If the user function returns
- * a non-zero value, the search is terminated immediately and this
- * value is returned to the caller.
- *
- * This is a wrapper for walk_namespace, but the callback performs
- * additional filtering. Please see acpi_ns_get_device_callback.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_get_devices(const char *HID,
- acpi_walk_callback user_function,
- void *context, void **return_value)
-{
- acpi_status status;
- struct acpi_get_devices_info info;
-
- ACPI_FUNCTION_TRACE(acpi_get_devices);
-
- /* Parameter validation */
-
- if (!user_function) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /*
- * We're going to call their callback from OUR callback, so we need
- * to know what it is, and their context parameter.
- */
- info.hid = HID;
- info.context = context;
- info.user_function = user_function;
-
- /*
- * Lock the namespace around the walk.
- * The namespace will be unlocked/locked around each call
- * to the user function - since this function
- * must be allowed to make Acpi calls itself.
- */
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
- acpi_ns_get_device_callback, &info,
- return_value);
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_devices)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_attach_data
- *
- * PARAMETERS: obj_handle - Namespace node
- * Handler - Handler for this attachment
- * Data - Pointer to data to be attached
- *
- * RETURN: Status
- *
- * DESCRIPTION: Attach arbitrary data and handler to a namespace node.
- *
- ******************************************************************************/
-acpi_status
-acpi_attach_data(acpi_handle obj_handle,
- acpi_object_handler handler, void *data)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- /* Parameter validation */
-
- if (!obj_handle || !handler || !data) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Convert and validate the handle */
-
- node = acpi_ns_map_handle_to_node(obj_handle);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- status = acpi_ns_attach_data(node, handler, data);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_attach_data)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_detach_data
- *
- * PARAMETERS: obj_handle - Namespace node handle
- * Handler - Handler used in call to acpi_attach_data
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove data that was previously attached to a node.
- *
- ******************************************************************************/
-acpi_status
-acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- /* Parameter validation */
-
- if (!obj_handle || !handler) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Convert and validate the handle */
-
- node = acpi_ns_map_handle_to_node(obj_handle);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- status = acpi_ns_detach_data(node, handler);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_detach_data)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_data
- *
- * PARAMETERS: obj_handle - Namespace node
- * Handler - Handler used in call to attach_data
- * Data - Where the data is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- /* Parameter validation */
-
- if (!obj_handle || !handler || !data) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Convert and validate the handle */
-
- node = acpi_ns_map_handle_to_node(obj_handle);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- status = acpi_ns_get_attached_data(node, handler, data);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_data)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: nsxfname - Public interfaces to the ACPI subsystem
- * ACPI Namespace oriented interfaces
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsxfname")
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_handle
- *
- * PARAMETERS: Parent - Object to search under (search scope).
- * Pathname - Pointer to an asciiz string containing the
- * name
- * ret_handle - Where the return handle is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This routine will search for a caller specified name in the
- * name space. The caller can restrict the search region by
- * specifying a non NULL parent. The parent value is itself a
- * namespace handle.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_handle(acpi_handle parent,
- acpi_string pathname, acpi_handle * ret_handle)
-{
- acpi_status status;
- struct acpi_namespace_node *node = NULL;
- struct acpi_namespace_node *prefix_node = NULL;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Parameter Validation */
-
- if (!ret_handle || !pathname) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Convert a parent handle to a prefix node */
-
- if (parent) {
- prefix_node = acpi_ns_map_handle_to_node(parent);
- if (!prefix_node) {
- return (AE_BAD_PARAMETER);
- }
- }
-
- /*
- * Valid cases are:
- * 1) Fully qualified pathname
- * 2) Parent + Relative pathname
- *
- * Error for <null Parent + relative path>
- */
- if (acpi_ns_valid_root_prefix(pathname[0])) {
-
- /* Pathname is fully qualified (starts with '\') */
-
- /* Special case for root-only, since we can't search for it */
-
- if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
- *ret_handle =
- acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
- return (AE_OK);
- }
- } else if (!prefix_node) {
-
- /* Relative path with null prefix is disallowed */
-
- return (AE_BAD_PARAMETER);
- }
-
- /* Find the Node and convert to a handle */
-
- status =
- acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node);
- if (ACPI_SUCCESS(status)) {
- *ret_handle = acpi_ns_convert_entry_to_handle(node);
- }
-
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_handle)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_name
- *
- * PARAMETERS: Handle - Handle to be converted to a pathname
- * name_type - Full pathname or single segment
- * Buffer - Buffer for returned path
- *
- * RETURN: Pointer to a string containing the fully qualified Name.
- *
- * DESCRIPTION: This routine returns the fully qualified name associated with
- * the Handle parameter. This and the acpi_pathname_to_handle are
- * complementary functions.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- /* Parameter validation */
-
- if (name_type > ACPI_NAME_TYPE_MAX) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_validate_buffer(buffer);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- if (name_type == ACPI_FULL_PATHNAME) {
-
- /* Get the full pathname (From the namespace root) */
-
- status = acpi_ns_handle_to_pathname(handle, buffer);
- return (status);
- }
-
- /*
- * Wants the single segment ACPI name.
- * Validate handle and convert to a namespace Node
- */
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- node = acpi_ns_map_handle_to_node(handle);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- status = acpi_ut_initialize_buffer(buffer, ACPI_PATH_SEGMENT_LENGTH);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Just copy the ACPI name from the Node and zero terminate it */
-
- ACPI_STRNCPY(buffer->pointer, acpi_ut_get_node_name(node),
- ACPI_NAME_SIZE);
- ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
- status = AE_OK;
-
- unlock_and_exit:
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_name)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_object_info
- *
- * PARAMETERS: Handle - Object Handle
- * Buffer - Where the info is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Returns information about an object as gleaned from the
- * namespace node and possibly by running several standard
- * control methods (Such as in the case of a device.)
- *
- ******************************************************************************/
-acpi_status
-acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- struct acpi_device_info *info;
- struct acpi_device_info *return_info;
- struct acpi_compatible_id_list *cid_list = NULL;
- acpi_size size;
-
- /* Parameter validation */
-
- if (!handle || !buffer) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_validate_buffer(buffer);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
- if (!info) {
- return (AE_NO_MEMORY);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- node = acpi_ns_map_handle_to_node(handle);
- if (!node) {
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- status = AE_BAD_PARAMETER;
- goto cleanup;
- }
-
- /* Init return structure */
-
- size = sizeof(struct acpi_device_info);
-
- info->type = node->type;
- info->name = node->name.integer;
- info->valid = 0;
-
- if (node->type == ACPI_TYPE_METHOD) {
- info->param_count = node->object->method.param_count;
- }
-
- status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* If not a device, we are all done */
-
- if (info->type == ACPI_TYPE_DEVICE) {
- /*
- * Get extra info for ACPI Devices objects only:
- * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
- *
- * Note: none of these methods are required, so they may or may
- * not be present for this device. The Info->Valid bitfield is used
- * to indicate which methods were found and ran successfully.
- */
-
- /* Execute the Device._HID method */
-
- status = acpi_ut_execute_HID(node, &info->hardware_id);
- if (ACPI_SUCCESS(status)) {
- info->valid |= ACPI_VALID_HID;
- }
-
- /* Execute the Device._UID method */
-
- status = acpi_ut_execute_UID(node, &info->unique_id);
- if (ACPI_SUCCESS(status)) {
- info->valid |= ACPI_VALID_UID;
- }
-
- /* Execute the Device._CID method */
-
- status = acpi_ut_execute_CID(node, &cid_list);
- if (ACPI_SUCCESS(status)) {
- size += cid_list->size;
- info->valid |= ACPI_VALID_CID;
- }
-
- /* Execute the Device._STA method */
-
- status = acpi_ut_execute_STA(node, &info->current_status);
- if (ACPI_SUCCESS(status)) {
- info->valid |= ACPI_VALID_STA;
- }
-
- /* Execute the Device._ADR method */
-
- status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node,
- &info->address);
- if (ACPI_SUCCESS(status)) {
- info->valid |= ACPI_VALID_ADR;
- }
-
- /* Execute the Device._sx_d methods */
-
- status = acpi_ut_execute_sxds(node, info->highest_dstates);
- if (ACPI_SUCCESS(status)) {
- info->valid |= ACPI_VALID_SXDS;
- }
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- status = acpi_ut_initialize_buffer(buffer, size);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Populate the return buffer */
-
- return_info = buffer->pointer;
- ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
-
- if (cid_list) {
- ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
- cid_list->size);
- }
-
- cleanup:
- ACPI_FREE(info);
- if (cid_list) {
- ACPI_FREE(cid_list);
- }
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_object_info)
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: nsxfobj - Public interfaces to the ACPI subsystem
- * ACPI Object oriented interfaces
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_NAMESPACE
-ACPI_MODULE_NAME("nsxfobj")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_id
- *
- * PARAMETERS: Handle - Handle of object whose id is desired
- * ret_id - Where the id will be placed
- *
- * RETURN: Status
- *
- * DESCRIPTION: This routine returns the owner id associated with a handle
- *
- ******************************************************************************/
-acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- /* Parameter Validation */
-
- if (!ret_id) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Convert and validate the handle */
-
- node = acpi_ns_map_handle_to_node(handle);
- if (!node) {
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (AE_BAD_PARAMETER);
- }
-
- *ret_id = node->owner_id;
-
- status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_id)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_type
- *
- * PARAMETERS: Handle - Handle of object whose type is desired
- * ret_type - Where the type will be placed
- *
- * RETURN: Status
- *
- * DESCRIPTION: This routine returns the type associatd with a particular handle
- *
- ******************************************************************************/
-acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- /* Parameter Validation */
-
- if (!ret_type) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Special case for the predefined Root Node
- * (return type ANY)
- */
- if (handle == ACPI_ROOT_OBJECT) {
- *ret_type = ACPI_TYPE_ANY;
- return (AE_OK);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Convert and validate the handle */
-
- node = acpi_ns_map_handle_to_node(handle);
- if (!node) {
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (AE_BAD_PARAMETER);
- }
-
- *ret_type = node->type;
-
- status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_type)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_parent
- *
- * PARAMETERS: Handle - Handle of object whose parent is desired
- * ret_handle - Where the parent handle will be placed
- *
- * RETURN: Status
- *
- * DESCRIPTION: Returns a handle to the parent of the object represented by
- * Handle.
- *
- ******************************************************************************/
-acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
-{
- struct acpi_namespace_node *node;
- acpi_status status;
-
- if (!ret_handle) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Special case for the predefined Root Node (no parent) */
-
- if (handle == ACPI_ROOT_OBJECT) {
- return (AE_NULL_ENTRY);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Convert and validate the handle */
-
- node = acpi_ns_map_handle_to_node(handle);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Get the parent entry */
-
- *ret_handle =
- acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node));
-
- /* Return exception if parent is null */
-
- if (!acpi_ns_get_parent_node(node)) {
- status = AE_NULL_ENTRY;
- }
-
- unlock_and_exit:
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_parent)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_next_object
- *
- * PARAMETERS: Type - Type of object to be searched for
- * Parent - Parent object whose children we are getting
- * last_child - Previous child that was found.
- * The NEXT child will be returned
- * ret_handle - Where handle to the next object is placed
- *
- * RETURN: Status
- *
- * DESCRIPTION: Return the next peer object within the namespace. If Handle is
- * valid, Scope is ignored. Otherwise, the first object within
- * Scope is returned.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_next_object(acpi_object_type type,
- acpi_handle parent,
- acpi_handle child, acpi_handle * ret_handle)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
- struct acpi_namespace_node *parent_node = NULL;
- struct acpi_namespace_node *child_node = NULL;
-
- /* Parameter validation */
-
- if (type > ACPI_TYPE_EXTERNAL_MAX) {
- return (AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* If null handle, use the parent */
-
- if (!child) {
-
- /* Start search at the beginning of the specified scope */
-
- parent_node = acpi_ns_map_handle_to_node(parent);
- if (!parent_node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- } else {
- /* Non-null handle, ignore the parent */
- /* Convert and validate the handle */
-
- child_node = acpi_ns_map_handle_to_node(child);
- if (!child_node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- }
-
- /* Internal function does the real work */
-
- node = acpi_ns_get_next_node(type, parent_node, child_node);
- if (!node) {
- status = AE_NOT_FOUND;
- goto unlock_and_exit;
- }
-
- if (ret_handle) {
- *ret_handle = acpi_ns_convert_entry_to_handle(node);
- }
-
- unlock_and_exit:
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_next_object)
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := psargs.o psparse.o psloop.o pstree.o pswalk.o \
- psopcode.o psscope.o psutils.o psxface.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psargs - Parse AML opcode arguments
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdispat.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psargs")
-
-/* Local prototypes */
-static u32
-acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state);
-
-static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
- *parser_state);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_package_length
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: Decoded package length. On completion, the AML pointer points
- * past the length byte or bytes.
- *
- * DESCRIPTION: Decode and return a package length field.
- * Note: Largest package length is 28 bits, from ACPI specification
- *
- ******************************************************************************/
-
-static u32
-acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state)
-{
- u8 *aml = parser_state->aml;
- u32 package_length = 0;
- u32 byte_count;
- u8 byte_zero_mask = 0x3F; /* Default [0:5] */
-
- ACPI_FUNCTION_TRACE(ps_get_next_package_length);
-
- /*
- * Byte 0 bits [6:7] contain the number of additional bytes
- * used to encode the package length, either 0,1,2, or 3
- */
- byte_count = (aml[0] >> 6);
- parser_state->aml += ((acpi_size) byte_count + 1);
-
- /* Get bytes 3, 2, 1 as needed */
-
- while (byte_count) {
- /*
- * Final bit positions for the package length bytes:
- * Byte3->[20:27]
- * Byte2->[12:19]
- * Byte1->[04:11]
- * Byte0->[00:03]
- */
- package_length |= (aml[byte_count] << ((byte_count << 3) - 4));
-
- byte_zero_mask = 0x0F; /* Use bits [0:3] of byte 0 */
- byte_count--;
- }
-
- /* Byte 0 is a special case, either bits [0:3] or [0:5] are used */
-
- package_length |= (aml[0] & byte_zero_mask);
- return_UINT32(package_length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_package_end
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: Pointer to end-of-package +1
- *
- * DESCRIPTION: Get next package length and return a pointer past the end of
- * the package. Consumes the package length field
- *
- ******************************************************************************/
-
-u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state)
-{
- u8 *start = parser_state->aml;
- u32 package_length;
-
- ACPI_FUNCTION_TRACE(ps_get_next_package_end);
-
- /* Function below updates parser_state->Aml */
-
- package_length = acpi_ps_get_next_package_length(parser_state);
-
- return_PTR(start + package_length); /* end of package */
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_namestring
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: Pointer to the start of the name string (pointer points into
- * the AML.
- *
- * DESCRIPTION: Get next raw namestring within the AML stream. Handles all name
- * prefix characters. Set parser state to point past the string.
- * (Name is consumed from the AML.)
- *
- ******************************************************************************/
-
-char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state)
-{
- u8 *start = parser_state->aml;
- u8 *end = parser_state->aml;
-
- ACPI_FUNCTION_TRACE(ps_get_next_namestring);
-
- /* Point past any namestring prefix characters (backslash or carat) */
-
- while (acpi_ps_is_prefix_char(*end)) {
- end++;
- }
-
- /* Decode the path prefix character */
-
- switch (*end) {
- case 0:
-
- /* null_name */
-
- if (end == start) {
- start = NULL;
- }
- end++;
- break;
-
- case AML_DUAL_NAME_PREFIX:
-
- /* Two name segments */
-
- end += 1 + (2 * ACPI_NAME_SIZE);
- break;
-
- case AML_MULTI_NAME_PREFIX_OP:
-
- /* Multiple name segments, 4 chars each, count in next byte */
-
- end += 2 + (*(end + 1) * ACPI_NAME_SIZE);
- break;
-
- default:
-
- /* Single name segment */
-
- end += ACPI_NAME_SIZE;
- break;
- }
-
- parser_state->aml = end;
- return_PTR((char *)start);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_namepath
- *
- * PARAMETERS: parser_state - Current parser state object
- * Arg - Where the namepath will be stored
- * arg_count - If the namepath points to a control method
- * the method's argument is returned here.
- * possible_method_call - Whether the namepath can possibly be the
- * start of a method call
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get next name (if method call, return # of required args).
- * Names are looked up in the internal namespace to determine
- * if the name represents a control method. If a method
- * is found, the number of arguments to the method is returned.
- * This information is critical for parsing to continue correctly.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
- struct acpi_parse_state *parser_state,
- union acpi_parse_object *arg, u8 possible_method_call)
-{
- acpi_status status;
- char *path;
- union acpi_parse_object *name_op;
- union acpi_operand_object *method_desc;
- struct acpi_namespace_node *node;
- u8 *start = parser_state->aml;
-
- ACPI_FUNCTION_TRACE(ps_get_next_namepath);
-
- path = acpi_ps_get_next_namestring(parser_state);
- acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP);
-
- /* Null path case is allowed, just exit */
-
- if (!path) {
- arg->common.value.name = path;
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Lookup the name in the internal namespace, starting with the current
- * scope. We don't want to add anything new to the namespace here,
- * however, so we use MODE_EXECUTE.
- * Allow searching of the parent tree, but don't open a new scope -
- * we just want to lookup the object (must be mode EXECUTE to perform
- * the upsearch)
- */
- status = acpi_ns_lookup(walk_state->scope_info, path,
- ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
- ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE,
- NULL, &node);
-
- /*
- * If this name is a control method invocation, we must
- * setup the method call
- */
- if (ACPI_SUCCESS(status) &&
- possible_method_call && (node->type == ACPI_TYPE_METHOD)) {
- if (walk_state->opcode == AML_UNLOAD_OP) {
- /*
- * acpi_ps_get_next_namestring has increased the AML pointer,
- * so we need to restore the saved AML pointer for method call.
- */
- walk_state->parser_state.aml = start;
- walk_state->arg_count = 1;
- acpi_ps_init_op(arg, AML_INT_METHODCALL_OP);
- return_ACPI_STATUS(AE_OK);
- }
-
- /* This name is actually a control method invocation */
-
- method_desc = acpi_ns_get_attached_object(node);
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Control Method - %p Desc %p Path=%p\n", node,
- method_desc, path));
-
- name_op = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
- if (!name_op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Change Arg into a METHOD CALL and attach name to it */
-
- acpi_ps_init_op(arg, AML_INT_METHODCALL_OP);
- name_op->common.value.name = path;
-
- /* Point METHODCALL/NAME to the METHOD Node */
-
- name_op->common.node = node;
- acpi_ps_append_arg(arg, name_op);
-
- if (!method_desc) {
- ACPI_ERROR((AE_INFO,
- "Control Method %p has no attached object",
- node));
- return_ACPI_STATUS(AE_AML_INTERNAL);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Control Method - %p Args %X\n",
- node, method_desc->method.param_count));
-
- /* Get the number of arguments to expect */
-
- walk_state->arg_count = method_desc->method.param_count;
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Special handling if the name was not found during the lookup -
- * some not_found cases are allowed
- */
- if (status == AE_NOT_FOUND) {
-
- /* 1) not_found is ok during load pass 1/2 (allow forward references) */
-
- if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) !=
- ACPI_PARSE_EXECUTE) {
- status = AE_OK;
- }
-
- /* 2) not_found during a cond_ref_of(x) is ok by definition */
-
- else if (walk_state->op->common.aml_opcode ==
- AML_COND_REF_OF_OP) {
- status = AE_OK;
- }
-
- /*
- * 3) not_found while building a Package is ok at this point, we
- * may flag as an error later if slack mode is not enabled.
- * (Some ASL code depends on allowing this behavior)
- */
- else if ((arg->common.parent) &&
- ((arg->common.parent->common.aml_opcode ==
- AML_PACKAGE_OP)
- || (arg->common.parent->common.aml_opcode ==
- AML_VAR_PACKAGE_OP))) {
- status = AE_OK;
- }
- }
-
- /* Final exception check (may have been changed from code above) */
-
- if (ACPI_FAILURE(status)) {
- ACPI_ERROR_NAMESPACE(path, status);
-
- if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
- ACPI_PARSE_EXECUTE) {
-
- /* Report a control method execution error */
-
- status = acpi_ds_method_error(status, walk_state);
- }
- }
-
- /* Save the namepath */
-
- arg->common.value.name = path;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_simple_arg
- *
- * PARAMETERS: parser_state - Current parser state object
- * arg_type - The argument type (AML_*_ARG)
- * Arg - Where the argument is returned
- *
- * RETURN: None
- *
- * DESCRIPTION: Get the next simple argument (constant, string, or namestring)
- *
- ******************************************************************************/
-
-void
-acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
- u32 arg_type, union acpi_parse_object *arg)
-{
- u32 length;
- u16 opcode;
- u8 *aml = parser_state->aml;
-
- ACPI_FUNCTION_TRACE_U32(ps_get_next_simple_arg, arg_type);
-
- switch (arg_type) {
- case ARGP_BYTEDATA:
-
- /* Get 1 byte from the AML stream */
-
- opcode = AML_BYTE_OP;
- arg->common.value.integer = (acpi_integer) * aml;
- length = 1;
- break;
-
- case ARGP_WORDDATA:
-
- /* Get 2 bytes from the AML stream */
-
- opcode = AML_WORD_OP;
- ACPI_MOVE_16_TO_64(&arg->common.value.integer, aml);
- length = 2;
- break;
-
- case ARGP_DWORDDATA:
-
- /* Get 4 bytes from the AML stream */
-
- opcode = AML_DWORD_OP;
- ACPI_MOVE_32_TO_64(&arg->common.value.integer, aml);
- length = 4;
- break;
-
- case ARGP_QWORDDATA:
-
- /* Get 8 bytes from the AML stream */
-
- opcode = AML_QWORD_OP;
- ACPI_MOVE_64_TO_64(&arg->common.value.integer, aml);
- length = 8;
- break;
-
- case ARGP_CHARLIST:
-
- /* Get a pointer to the string, point past the string */
-
- opcode = AML_STRING_OP;
- arg->common.value.string = ACPI_CAST_PTR(char, aml);
-
- /* Find the null terminator */
-
- length = 0;
- while (aml[length]) {
- length++;
- }
- length++;
- break;
-
- case ARGP_NAME:
- case ARGP_NAMESTRING:
-
- acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP);
- arg->common.value.name =
- acpi_ps_get_next_namestring(parser_state);
- return_VOID;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type));
- return_VOID;
- }
-
- acpi_ps_init_op(arg, opcode);
- parser_state->aml += length;
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_field
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: A newly allocated FIELD op
- *
- * DESCRIPTION: Get next field (named_field, reserved_field, or access_field)
- *
- ******************************************************************************/
-
-static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
- *parser_state)
-{
- u32 aml_offset = (u32)
- ACPI_PTR_DIFF(parser_state->aml,
- parser_state->aml_start);
- union acpi_parse_object *field;
- u16 opcode;
- u32 name;
-
- ACPI_FUNCTION_TRACE(ps_get_next_field);
-
- /* Determine field type */
-
- switch (ACPI_GET8(parser_state->aml)) {
- default:
-
- opcode = AML_INT_NAMEDFIELD_OP;
- break;
-
- case 0x00:
-
- opcode = AML_INT_RESERVEDFIELD_OP;
- parser_state->aml++;
- break;
-
- case 0x01:
-
- opcode = AML_INT_ACCESSFIELD_OP;
- parser_state->aml++;
- break;
- }
-
- /* Allocate a new field op */
-
- field = acpi_ps_alloc_op(opcode);
- if (!field) {
- return_PTR(NULL);
- }
-
- field->common.aml_offset = aml_offset;
-
- /* Decode the field type */
-
- switch (opcode) {
- case AML_INT_NAMEDFIELD_OP:
-
- /* Get the 4-character name */
-
- ACPI_MOVE_32_TO_32(&name, parser_state->aml);
- acpi_ps_set_name(field, name);
- parser_state->aml += ACPI_NAME_SIZE;
-
- /* Get the length which is encoded as a package length */
-
- field->common.value.size =
- acpi_ps_get_next_package_length(parser_state);
- break;
-
- case AML_INT_RESERVEDFIELD_OP:
-
- /* Get the length which is encoded as a package length */
-
- field->common.value.size =
- acpi_ps_get_next_package_length(parser_state);
- break;
-
- case AML_INT_ACCESSFIELD_OP:
-
- /*
- * Get access_type and access_attrib and merge into the field Op
- * access_type is first operand, access_attribute is second
- */
- field->common.value.integer =
- (((u32) ACPI_GET8(parser_state->aml) << 8));
- parser_state->aml++;
- field->common.value.integer |= ACPI_GET8(parser_state->aml);
- parser_state->aml++;
- break;
-
- default:
-
- /* Opcode was set in previous switch */
- break;
- }
-
- return_PTR(field);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_next_arg
- *
- * PARAMETERS: walk_state - Current state
- * parser_state - Current parser state object
- * arg_type - The argument type (AML_*_ARG)
- * return_arg - Where the next arg is returned
- *
- * RETURN: Status, and an op object containing the next argument.
- *
- * DESCRIPTION: Get next argument (including complex list arguments that require
- * pushing the parser stack)
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
- struct acpi_parse_state *parser_state,
- u32 arg_type, union acpi_parse_object **return_arg)
-{
- union acpi_parse_object *arg = NULL;
- union acpi_parse_object *prev = NULL;
- union acpi_parse_object *field;
- u32 subop;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ps_get_next_arg, parser_state);
-
- switch (arg_type) {
- case ARGP_BYTEDATA:
- case ARGP_WORDDATA:
- case ARGP_DWORDDATA:
- case ARGP_CHARLIST:
- case ARGP_NAME:
- case ARGP_NAMESTRING:
-
- /* Constants, strings, and namestrings are all the same size */
-
- arg = acpi_ps_alloc_op(AML_BYTE_OP);
- if (!arg) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- acpi_ps_get_next_simple_arg(parser_state, arg_type, arg);
- break;
-
- case ARGP_PKGLENGTH:
-
- /* Package length, nothing returned */
-
- parser_state->pkg_end =
- acpi_ps_get_next_package_end(parser_state);
- break;
-
- case ARGP_FIELDLIST:
-
- if (parser_state->aml < parser_state->pkg_end) {
-
- /* Non-empty list */
-
- while (parser_state->aml < parser_state->pkg_end) {
- field = acpi_ps_get_next_field(parser_state);
- if (!field) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- if (prev) {
- prev->common.next = field;
- } else {
- arg = field;
- }
- prev = field;
- }
-
- /* Skip to End of byte data */
-
- parser_state->aml = parser_state->pkg_end;
- }
- break;
-
- case ARGP_BYTELIST:
-
- if (parser_state->aml < parser_state->pkg_end) {
-
- /* Non-empty list */
-
- arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP);
- if (!arg) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Fill in bytelist data */
-
- arg->common.value.size = (u32)
- ACPI_PTR_DIFF(parser_state->pkg_end,
- parser_state->aml);
- arg->named.data = parser_state->aml;
-
- /* Skip to End of byte data */
-
- parser_state->aml = parser_state->pkg_end;
- }
- break;
-
- case ARGP_TARGET:
- case ARGP_SUPERNAME:
- case ARGP_SIMPLENAME:
-
- subop = acpi_ps_peek_opcode(parser_state);
- if (subop == 0 ||
- acpi_ps_is_leading_char(subop) ||
- acpi_ps_is_prefix_char(subop)) {
-
- /* null_name or name_string */
-
- arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP);
- if (!arg) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* To support super_name arg of Unload */
-
- if (walk_state->opcode == AML_UNLOAD_OP) {
- status =
- acpi_ps_get_next_namepath(walk_state,
- parser_state, arg,
- 1);
-
- /*
- * If the super_name arg of Unload is a method call,
- * we have restored the AML pointer, just free this Arg
- */
- if (arg->common.aml_opcode ==
- AML_INT_METHODCALL_OP) {
- acpi_ps_free_op(arg);
- arg = NULL;
- }
- } else {
- status =
- acpi_ps_get_next_namepath(walk_state,
- parser_state, arg,
- 0);
- }
- } else {
- /* Single complex argument, nothing returned */
-
- walk_state->arg_count = 1;
- }
- break;
-
- case ARGP_DATAOBJ:
- case ARGP_TERMARG:
-
- /* Single complex argument, nothing returned */
-
- walk_state->arg_count = 1;
- break;
-
- case ARGP_DATAOBJLIST:
- case ARGP_TERMLIST:
- case ARGP_OBJLIST:
-
- if (parser_state->aml < parser_state->pkg_end) {
-
- /* Non-empty list of variable arguments, nothing returned */
-
- walk_state->arg_count = ACPI_VAR_ARGS;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type));
- status = AE_AML_OPERAND_TYPE;
- break;
- }
-
- *return_arg = arg;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psloop - Main AML parse loop
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-/*
- * Parse the AML and build an operation tree as most interpreters, (such as
- * Perl) do. Parsing is done by hand rather than with a YACC generated parser
- * to tightly constrain stack and dynamic memory usage. Parsing is kept
- * flexible and the code fairly compact by parsing based on a list of AML
- * opcode templates in aml_op_info[].
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psloop")
-
-static u32 acpi_gbl_depth = 0;
-
-/* Local prototypes */
-
-static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state);
-
-static acpi_status
-acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
- u8 * aml_op_start,
- union acpi_parse_object *unnamed_op,
- union acpi_parse_object **op);
-
-static acpi_status
-acpi_ps_create_op(struct acpi_walk_state *walk_state,
- u8 * aml_op_start, union acpi_parse_object **new_op);
-
-static acpi_status
-acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
- u8 * aml_op_start, union acpi_parse_object *op);
-
-static acpi_status
-acpi_ps_complete_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object **op, acpi_status status);
-
-static acpi_status
-acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op, acpi_status status);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_aml_opcode
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Extract the next AML opcode from the input stream.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state)
-{
-
- ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state);
-
- walk_state->aml_offset =
- (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
- walk_state->parser_state.aml_start);
- walk_state->opcode = acpi_ps_peek_opcode(&(walk_state->parser_state));
-
- /*
- * First cut to determine what we have found:
- * 1) A valid AML opcode
- * 2) A name string
- * 3) An unknown/invalid opcode
- */
- walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
-
- switch (walk_state->op_info->class) {
- case AML_CLASS_ASCII:
- case AML_CLASS_PREFIX:
- /*
- * Starts with a valid prefix or ASCII char, this is a name
- * string. Convert the bare name string to a namepath.
- */
- walk_state->opcode = AML_INT_NAMEPATH_OP;
- walk_state->arg_types = ARGP_NAMESTRING;
- break;
-
- case AML_CLASS_UNKNOWN:
-
- /* The opcode is unrecognized. Just skip unknown opcodes */
-
- ACPI_ERROR((AE_INFO,
- "Found unknown opcode %X at AML address %p offset %X, ignoring",
- walk_state->opcode, walk_state->parser_state.aml,
- walk_state->aml_offset));
-
- ACPI_DUMP_BUFFER(walk_state->parser_state.aml, 128);
-
- /* Assume one-byte bad opcode */
-
- walk_state->parser_state.aml++;
- return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
-
- default:
-
- /* Found opcode info, this is a normal opcode */
-
- walk_state->parser_state.aml +=
- acpi_ps_get_opcode_size(walk_state->opcode);
- walk_state->arg_types = walk_state->op_info->parse_args;
- break;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_build_named_op
- *
- * PARAMETERS: walk_state - Current state
- * aml_op_start - Begin of named Op in AML
- * unnamed_op - Early Op (not a named Op)
- * Op - Returned Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Parse a named Op
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
- u8 * aml_op_start,
- union acpi_parse_object *unnamed_op,
- union acpi_parse_object **op)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *arg = NULL;
-
- ACPI_FUNCTION_TRACE_PTR(ps_build_named_op, walk_state);
-
- unnamed_op->common.value.arg = NULL;
- unnamed_op->common.arg_list_length = 0;
- unnamed_op->common.aml_opcode = walk_state->opcode;
-
- /*
- * Get and append arguments until we find the node that contains
- * the name (the type ARGP_NAME).
- */
- while (GET_CURRENT_ARG_TYPE(walk_state->arg_types) &&
- (GET_CURRENT_ARG_TYPE(walk_state->arg_types) != ARGP_NAME)) {
- status =
- acpi_ps_get_next_arg(walk_state,
- &(walk_state->parser_state),
- GET_CURRENT_ARG_TYPE(walk_state->
- arg_types), &arg);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- acpi_ps_append_arg(unnamed_op, arg);
- INCREMENT_ARG_LIST(walk_state->arg_types);
- }
-
- /*
- * Make sure that we found a NAME and didn't run out of arguments
- */
- if (!GET_CURRENT_ARG_TYPE(walk_state->arg_types)) {
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- /* We know that this arg is a name, move to next arg */
-
- INCREMENT_ARG_LIST(walk_state->arg_types);
-
- /*
- * Find the object. This will either insert the object into
- * the namespace or simply look it up
- */
- walk_state->op = NULL;
-
- status = walk_state->descending_callback(walk_state, op);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "During name lookup/catalog"));
- return_ACPI_STATUS(status);
- }
-
- if (!*op) {
- return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
- }
-
- status = acpi_ps_next_parse_state(walk_state, *op, status);
- if (ACPI_FAILURE(status)) {
- if (status == AE_CTRL_PENDING) {
- return_ACPI_STATUS(AE_CTRL_PARSE_PENDING);
- }
- return_ACPI_STATUS(status);
- }
-
- acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
- acpi_gbl_depth++;
-
- if ((*op)->common.aml_opcode == AML_REGION_OP ||
- (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
- /*
- * Defer final parsing of an operation_region body, because we don't
- * have enough info in the first pass to parse it correctly (i.e.,
- * there may be method calls within the term_arg elements of the body.)
- *
- * However, we must continue parsing because the opregion is not a
- * standalone package -- we don't know where the end is at this point.
- *
- * (Length is unknown until parse of the body complete)
- */
- (*op)->named.data = aml_op_start;
- (*op)->named.length = 0;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_create_op
- *
- * PARAMETERS: walk_state - Current state
- * aml_op_start - Op start in AML
- * new_op - Returned Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get Op from AML
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_create_op(struct acpi_walk_state *walk_state,
- u8 * aml_op_start, union acpi_parse_object **new_op)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *op;
- union acpi_parse_object *named_op = NULL;
- union acpi_parse_object *parent_scope;
- u8 argument_count;
- const struct acpi_opcode_info *op_info;
-
- ACPI_FUNCTION_TRACE_PTR(ps_create_op, walk_state);
-
- status = acpi_ps_get_aml_opcode(walk_state);
- if (status == AE_CTRL_PARSE_CONTINUE) {
- return_ACPI_STATUS(AE_CTRL_PARSE_CONTINUE);
- }
-
- /* Create Op structure and append to parent's argument list */
-
- walk_state->op_info = acpi_ps_get_opcode_info(walk_state->opcode);
- op = acpi_ps_alloc_op(walk_state->opcode);
- if (!op) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- if (walk_state->op_info->flags & AML_NAMED) {
- status =
- acpi_ps_build_named_op(walk_state, aml_op_start, op,
- &named_op);
- acpi_ps_free_op(op);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- *new_op = named_op;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Not a named opcode, just allocate Op and append to parent */
-
- if (walk_state->op_info->flags & AML_CREATE) {
- /*
- * Backup to beginning of create_xXXfield declaration
- * body_length is unknown until we parse the body
- */
- op->named.data = aml_op_start;
- op->named.length = 0;
- }
-
- if (walk_state->opcode == AML_BANK_FIELD_OP) {
- /*
- * Backup to beginning of bank_field declaration
- * body_length is unknown until we parse the body
- */
- op->named.data = aml_op_start;
- op->named.length = 0;
- }
-
- parent_scope = acpi_ps_get_parent_scope(&(walk_state->parser_state));
- acpi_ps_append_arg(parent_scope, op);
-
- if (parent_scope) {
- op_info =
- acpi_ps_get_opcode_info(parent_scope->common.aml_opcode);
- if (op_info->flags & AML_HAS_TARGET) {
- argument_count =
- acpi_ps_get_argument_count(op_info->type);
- if (parent_scope->common.arg_list_length >
- argument_count) {
- op->common.flags |= ACPI_PARSEOP_TARGET;
- }
- } else if (parent_scope->common.aml_opcode == AML_INCREMENT_OP) {
- op->common.flags |= ACPI_PARSEOP_TARGET;
- }
- }
-
- if (walk_state->descending_callback != NULL) {
- /*
- * Find the object. This will either insert the object into
- * the namespace or simply look it up
- */
- walk_state->op = *new_op = op;
-
- status = walk_state->descending_callback(walk_state, &op);
- status = acpi_ps_next_parse_state(walk_state, op, status);
- if (status == AE_CTRL_PENDING) {
- status = AE_CTRL_PARSE_PENDING;
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_arguments
- *
- * PARAMETERS: walk_state - Current state
- * aml_op_start - Op start in AML
- * Op - Current Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get arguments for passed Op.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_get_arguments(struct acpi_walk_state *walk_state,
- u8 * aml_op_start, union acpi_parse_object *op)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *arg = NULL;
-
- ACPI_FUNCTION_TRACE_PTR(ps_get_arguments, walk_state);
-
- switch (op->common.aml_opcode) {
- case AML_BYTE_OP: /* AML_BYTEDATA_ARG */
- case AML_WORD_OP: /* AML_WORDDATA_ARG */
- case AML_DWORD_OP: /* AML_DWORDATA_ARG */
- case AML_QWORD_OP: /* AML_QWORDATA_ARG */
- case AML_STRING_OP: /* AML_ASCIICHARLIST_ARG */
-
- /* Fill in constant or string argument directly */
-
- acpi_ps_get_next_simple_arg(&(walk_state->parser_state),
- GET_CURRENT_ARG_TYPE(walk_state->
- arg_types),
- op);
- break;
-
- case AML_INT_NAMEPATH_OP: /* AML_NAMESTRING_ARG */
-
- status =
- acpi_ps_get_next_namepath(walk_state,
- &(walk_state->parser_state), op,
- 1);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- walk_state->arg_types = 0;
- break;
-
- default:
- /*
- * Op is not a constant or string, append each argument to the Op
- */
- while (GET_CURRENT_ARG_TYPE(walk_state->arg_types)
- && !walk_state->arg_count) {
- walk_state->aml_offset =
- (u32) ACPI_PTR_DIFF(walk_state->parser_state.aml,
- walk_state->parser_state.
- aml_start);
-
- status =
- acpi_ps_get_next_arg(walk_state,
- &(walk_state->parser_state),
- GET_CURRENT_ARG_TYPE
- (walk_state->arg_types), &arg);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (arg) {
- arg->common.aml_offset = walk_state->aml_offset;
- acpi_ps_append_arg(op, arg);
- }
-
- INCREMENT_ARG_LIST(walk_state->arg_types);
- }
-
- /* Special processing for certain opcodes */
-
- /* TBD (remove): Temporary mechanism to disable this code if needed */
-
-#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
-
- if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) &&
- ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) {
- /*
- * We want to skip If/Else/While constructs during Pass1 because we
- * want to actually conditionally execute the code during Pass2.
- *
- * Except for disassembly, where we always want to walk the
- * If/Else/While packages
- */
- switch (op->common.aml_opcode) {
- case AML_IF_OP:
- case AML_ELSE_OP:
- case AML_WHILE_OP:
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Pass1: Skipping an If/Else/While body\n"));
-
- /* Skip body of if/else/while in pass 1 */
-
- walk_state->parser_state.aml =
- walk_state->parser_state.pkg_end;
- walk_state->arg_count = 0;
- break;
-
- default:
- break;
- }
- }
-#endif
-
- switch (op->common.aml_opcode) {
- case AML_METHOD_OP:
- /*
- * Skip parsing of control method because we don't have enough
- * info in the first pass to parse it correctly.
- *
- * Save the length and address of the body
- */
- op->named.data = walk_state->parser_state.aml;
- op->named.length = (u32)
- (walk_state->parser_state.pkg_end -
- walk_state->parser_state.aml);
-
- /* Skip body of method */
-
- walk_state->parser_state.aml =
- walk_state->parser_state.pkg_end;
- walk_state->arg_count = 0;
- break;
-
- case AML_BUFFER_OP:
- case AML_PACKAGE_OP:
- case AML_VAR_PACKAGE_OP:
-
- if ((op->common.parent) &&
- (op->common.parent->common.aml_opcode ==
- AML_NAME_OP)
- && (walk_state->pass_number <=
- ACPI_IMODE_LOAD_PASS2)) {
- /*
- * Skip parsing of Buffers and Packages because we don't have
- * enough info in the first pass to parse them correctly.
- */
- op->named.data = aml_op_start;
- op->named.length = (u32)
- (walk_state->parser_state.pkg_end -
- aml_op_start);
-
- /* Skip body */
-
- walk_state->parser_state.aml =
- walk_state->parser_state.pkg_end;
- walk_state->arg_count = 0;
- }
- break;
-
- case AML_WHILE_OP:
-
- if (walk_state->control_state) {
- walk_state->control_state->control.package_end =
- walk_state->parser_state.pkg_end;
- }
- break;
-
- default:
-
- /* No action for all other opcodes */
- break;
- }
-
- break;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_complete_op
- *
- * PARAMETERS: walk_state - Current state
- * Op - Returned Op
- * Status - Parse status before complete Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Complete Op
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_complete_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object **op, acpi_status status)
-{
- acpi_status status2;
-
- ACPI_FUNCTION_TRACE_PTR(ps_complete_op, walk_state);
-
- /*
- * Finished one argument of the containing scope
- */
- walk_state->parser_state.scope->parse_scope.arg_count--;
-
- /* Close this Op (will result in parse subtree deletion) */
-
- status2 = acpi_ps_complete_this_op(walk_state, *op);
- if (ACPI_FAILURE(status2)) {
- return_ACPI_STATUS(status2);
- }
-
- *op = NULL;
-
- switch (status) {
- case AE_OK:
- break;
-
- case AE_CTRL_TRANSFER:
-
- /* We are about to transfer to a called method */
-
- walk_state->prev_op = NULL;
- walk_state->prev_arg_types = walk_state->arg_types;
- return_ACPI_STATUS(status);
-
- case AE_CTRL_END:
-
- acpi_ps_pop_scope(&(walk_state->parser_state), op,
- &walk_state->arg_types,
- &walk_state->arg_count);
-
- if (*op) {
- walk_state->op = *op;
- walk_state->op_info =
- acpi_ps_get_opcode_info((*op)->common.aml_opcode);
- walk_state->opcode = (*op)->common.aml_opcode;
-
- status = walk_state->ascending_callback(walk_state);
- status =
- acpi_ps_next_parse_state(walk_state, *op, status);
-
- status2 = acpi_ps_complete_this_op(walk_state, *op);
- if (ACPI_FAILURE(status2)) {
- return_ACPI_STATUS(status2);
- }
- }
-
- status = AE_OK;
- break;
-
- case AE_CTRL_BREAK:
- case AE_CTRL_CONTINUE:
-
- /* Pop off scopes until we find the While */
-
- while (!(*op) || ((*op)->common.aml_opcode != AML_WHILE_OP)) {
- acpi_ps_pop_scope(&(walk_state->parser_state), op,
- &walk_state->arg_types,
- &walk_state->arg_count);
- }
-
- /* Close this iteration of the While loop */
-
- walk_state->op = *op;
- walk_state->op_info =
- acpi_ps_get_opcode_info((*op)->common.aml_opcode);
- walk_state->opcode = (*op)->common.aml_opcode;
-
- status = walk_state->ascending_callback(walk_state);
- status = acpi_ps_next_parse_state(walk_state, *op, status);
-
- status2 = acpi_ps_complete_this_op(walk_state, *op);
- if (ACPI_FAILURE(status2)) {
- return_ACPI_STATUS(status2);
- }
-
- status = AE_OK;
- break;
-
- case AE_CTRL_TERMINATE:
-
- /* Clean up */
- do {
- if (*op) {
- status2 =
- acpi_ps_complete_this_op(walk_state, *op);
- if (ACPI_FAILURE(status2)) {
- return_ACPI_STATUS(status2);
- }
-
- acpi_ut_delete_generic_state
- (acpi_ut_pop_generic_state
- (&walk_state->control_state));
- }
-
- acpi_ps_pop_scope(&(walk_state->parser_state), op,
- &walk_state->arg_types,
- &walk_state->arg_count);
-
- } while (*op);
-
- return_ACPI_STATUS(AE_OK);
-
- default: /* All other non-AE_OK status */
-
- do {
- if (*op) {
- status2 =
- acpi_ps_complete_this_op(walk_state, *op);
- if (ACPI_FAILURE(status2)) {
- return_ACPI_STATUS(status2);
- }
- }
-
- acpi_ps_pop_scope(&(walk_state->parser_state), op,
- &walk_state->arg_types,
- &walk_state->arg_count);
-
- } while (*op);
-
-#if 0
- /*
- * TBD: Cleanup parse ops on error
- */
- if (*op == NULL) {
- acpi_ps_pop_scope(parser_state, op,
- &walk_state->arg_types,
- &walk_state->arg_count);
- }
-#endif
- walk_state->prev_op = NULL;
- walk_state->prev_arg_types = walk_state->arg_types;
- return_ACPI_STATUS(status);
- }
-
- /* This scope complete? */
-
- if (acpi_ps_has_completed_scope(&(walk_state->parser_state))) {
- acpi_ps_pop_scope(&(walk_state->parser_state), op,
- &walk_state->arg_types,
- &walk_state->arg_count);
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *op));
- } else {
- *op = NULL;
- }
-
- ACPI_PREEMPTION_POINT();
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_complete_final_op
- *
- * PARAMETERS: walk_state - Current state
- * Op - Current Op
- * Status - Current parse status before complete last
- * Op
- *
- * RETURN: Status
- *
- * DESCRIPTION: Complete last Op.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op, acpi_status status)
-{
- acpi_status status2;
-
- ACPI_FUNCTION_TRACE_PTR(ps_complete_final_op, walk_state);
-
- /*
- * Complete the last Op (if not completed), and clear the scope stack.
- * It is easily possible to end an AML "package" with an unbounded number
- * of open scopes (such as when several ASL blocks are closed with
- * sequential closing braces). We want to terminate each one cleanly.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "AML package complete at Op %p\n",
- op));
- do {
- if (op) {
- if (walk_state->ascending_callback != NULL) {
- walk_state->op = op;
- walk_state->op_info =
- acpi_ps_get_opcode_info(op->common.
- aml_opcode);
- walk_state->opcode = op->common.aml_opcode;
-
- status =
- walk_state->ascending_callback(walk_state);
- status =
- acpi_ps_next_parse_state(walk_state, op,
- status);
- if (status == AE_CTRL_PENDING) {
- status =
- acpi_ps_complete_op(walk_state, &op,
- AE_OK);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- if (status == AE_CTRL_TERMINATE) {
- status = AE_OK;
-
- /* Clean up */
- do {
- if (op) {
- status2 =
- acpi_ps_complete_this_op
- (walk_state, op);
- if (ACPI_FAILURE
- (status2)) {
- return_ACPI_STATUS
- (status2);
- }
- }
-
- acpi_ps_pop_scope(&
- (walk_state->
- parser_state),
- &op,
- &walk_state->
- arg_types,
- &walk_state->
- arg_count);
-
- } while (op);
-
- return_ACPI_STATUS(status);
- }
-
- else if (ACPI_FAILURE(status)) {
-
- /* First error is most important */
-
- (void)
- acpi_ps_complete_this_op(walk_state,
- op);
- return_ACPI_STATUS(status);
- }
- }
-
- status2 = acpi_ps_complete_this_op(walk_state, op);
- if (ACPI_FAILURE(status2)) {
- return_ACPI_STATUS(status2);
- }
- }
-
- acpi_ps_pop_scope(&(walk_state->parser_state), &op,
- &walk_state->arg_types,
- &walk_state->arg_count);
-
- } while (op);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_parse_loop
- *
- * PARAMETERS: walk_state - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Parse AML (pointed to by the current parser state) and return
- * a tree of ops.
- *
- ******************************************************************************/
-
-acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
- union acpi_parse_object *op = NULL; /* current op */
- struct acpi_parse_state *parser_state;
- u8 *aml_op_start = NULL;
-
- ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state);
-
- if (walk_state->descending_callback == NULL) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- parser_state = &walk_state->parser_state;
- walk_state->arg_types = 0;
-
-#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
-
- if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) {
-
- /* We are restarting a preempted control method */
-
- if (acpi_ps_has_completed_scope(parser_state)) {
- /*
- * We must check if a predicate to an IF or WHILE statement
- * was just completed
- */
- if ((parser_state->scope->parse_scope.op) &&
- ((parser_state->scope->parse_scope.op->common.
- aml_opcode == AML_IF_OP)
- || (parser_state->scope->parse_scope.op->common.
- aml_opcode == AML_WHILE_OP))
- && (walk_state->control_state)
- && (walk_state->control_state->common.state ==
- ACPI_CONTROL_PREDICATE_EXECUTING)) {
- /*
- * A predicate was just completed, get the value of the
- * predicate and branch based on that value
- */
- walk_state->op = NULL;
- status =
- acpi_ds_get_predicate_value(walk_state,
- ACPI_TO_POINTER
- (TRUE));
- if (ACPI_FAILURE(status)
- && ((status & AE_CODE_MASK) !=
- AE_CODE_CONTROL)) {
- if (status == AE_AML_NO_RETURN_VALUE) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Invoked method did not return a value"));
-
- }
-
- ACPI_EXCEPTION((AE_INFO, status,
- "GetPredicate Failed"));
- return_ACPI_STATUS(status);
- }
-
- status =
- acpi_ps_next_parse_state(walk_state, op,
- status);
- }
-
- acpi_ps_pop_scope(parser_state, &op,
- &walk_state->arg_types,
- &walk_state->arg_count);
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Popped scope, Op=%p\n", op));
- } else if (walk_state->prev_op) {
-
- /* We were in the middle of an op */
-
- op = walk_state->prev_op;
- walk_state->arg_types = walk_state->prev_arg_types;
- }
- }
-#endif
-
- /* Iterative parsing loop, while there is more AML to process: */
-
- while ((parser_state->aml < parser_state->aml_end) || (op)) {
- aml_op_start = parser_state->aml;
- if (!op) {
- status =
- acpi_ps_create_op(walk_state, aml_op_start, &op);
- if (ACPI_FAILURE(status)) {
- if (status == AE_CTRL_PARSE_CONTINUE) {
- continue;
- }
-
- if (status == AE_CTRL_PARSE_PENDING) {
- status = AE_OK;
- }
-
- status =
- acpi_ps_complete_op(walk_state, &op,
- status);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- continue;
- }
-
- op->common.aml_offset = walk_state->aml_offset;
-
- if (walk_state->op_info) {
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n",
- (u32) op->common.aml_opcode,
- walk_state->op_info->name, op,
- parser_state->aml,
- op->common.aml_offset));
- }
- }
-
- /*
- * Start arg_count at zero because we don't know if there are
- * any args yet
- */
- walk_state->arg_count = 0;
-
- /* Are there any arguments that must be processed? */
-
- if (walk_state->arg_types) {
-
- /* Get arguments */
-
- status =
- acpi_ps_get_arguments(walk_state, aml_op_start, op);
- if (ACPI_FAILURE(status)) {
- status =
- acpi_ps_complete_op(walk_state, &op,
- status);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- continue;
- }
- }
-
- /* Check for arguments that need to be processed */
-
- if (walk_state->arg_count) {
- /*
- * There are arguments (complex ones), push Op and
- * prepare for argument
- */
- status = acpi_ps_push_scope(parser_state, op,
- walk_state->arg_types,
- walk_state->arg_count);
- if (ACPI_FAILURE(status)) {
- status =
- acpi_ps_complete_op(walk_state, &op,
- status);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- continue;
- }
-
- op = NULL;
- continue;
- }
-
- /*
- * All arguments have been processed -- Op is complete,
- * prepare for next
- */
- walk_state->op_info =
- acpi_ps_get_opcode_info(op->common.aml_opcode);
- if (walk_state->op_info->flags & AML_NAMED) {
- if (acpi_gbl_depth) {
- acpi_gbl_depth--;
- }
-
- if (op->common.aml_opcode == AML_REGION_OP ||
- op->common.aml_opcode == AML_DATA_REGION_OP) {
- /*
- * Skip parsing of control method or opregion body,
- * because we don't have enough info in the first pass
- * to parse them correctly.
- *
- * Completed parsing an op_region declaration, we now
- * know the length.
- */
- op->named.length =
- (u32) (parser_state->aml - op->named.data);
- }
- }
-
- if (walk_state->op_info->flags & AML_CREATE) {
- /*
- * Backup to beginning of create_xXXfield declaration (1 for
- * Opcode)
- *
- * body_length is unknown until we parse the body
- */
- op->named.length =
- (u32) (parser_state->aml - op->named.data);
- }
-
- if (op->common.aml_opcode == AML_BANK_FIELD_OP) {
- /*
- * Backup to beginning of bank_field declaration
- *
- * body_length is unknown until we parse the body
- */
- op->named.length =
- (u32) (parser_state->aml - op->named.data);
- }
-
- /* This op complete, notify the dispatcher */
-
- if (walk_state->ascending_callback != NULL) {
- walk_state->op = op;
- walk_state->opcode = op->common.aml_opcode;
-
- status = walk_state->ascending_callback(walk_state);
- status =
- acpi_ps_next_parse_state(walk_state, op, status);
- if (status == AE_CTRL_PENDING) {
- status = AE_OK;
- }
- }
-
- status = acpi_ps_complete_op(walk_state, &op, status);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- } /* while parser_state->Aml */
-
- status = acpi_ps_complete_final_op(walk_state, op, status);
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psopcode - Parser/Interpreter opcode information table
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acopcode.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psopcode")
-
-static const u8 acpi_gbl_argument_count[] =
- { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 };
-
-/*******************************************************************************
- *
- * NAME: acpi_gbl_aml_op_info
- *
- * DESCRIPTION: Opcode table. Each entry contains <opcode, type, name, operands>
- * The name is a simple ascii string, the operand specifier is an
- * ascii string with one letter per operand. The letter specifies
- * the operand type.
- *
- ******************************************************************************/
-
-/*
- * Summary of opcode types/flags
- *
-
- Opcodes that have associated namespace objects (AML_NSOBJECT flag)
-
- AML_SCOPE_OP
- AML_DEVICE_OP
- AML_THERMAL_ZONE_OP
- AML_METHOD_OP
- AML_POWER_RES_OP
- AML_PROCESSOR_OP
- AML_FIELD_OP
- AML_INDEX_FIELD_OP
- AML_BANK_FIELD_OP
- AML_NAME_OP
- AML_ALIAS_OP
- AML_MUTEX_OP
- AML_EVENT_OP
- AML_REGION_OP
- AML_CREATE_FIELD_OP
- AML_CREATE_BIT_FIELD_OP
- AML_CREATE_BYTE_FIELD_OP
- AML_CREATE_WORD_FIELD_OP
- AML_CREATE_DWORD_FIELD_OP
- AML_CREATE_QWORD_FIELD_OP
- AML_INT_NAMEDFIELD_OP
- AML_INT_METHODCALL_OP
- AML_INT_NAMEPATH_OP
-
- Opcodes that are "namespace" opcodes (AML_NSOPCODE flag)
-
- AML_SCOPE_OP
- AML_DEVICE_OP
- AML_THERMAL_ZONE_OP
- AML_METHOD_OP
- AML_POWER_RES_OP
- AML_PROCESSOR_OP
- AML_FIELD_OP
- AML_INDEX_FIELD_OP
- AML_BANK_FIELD_OP
- AML_NAME_OP
- AML_ALIAS_OP
- AML_MUTEX_OP
- AML_EVENT_OP
- AML_REGION_OP
- AML_INT_NAMEDFIELD_OP
-
- Opcodes that have an associated namespace node (AML_NSNODE flag)
-
- AML_SCOPE_OP
- AML_DEVICE_OP
- AML_THERMAL_ZONE_OP
- AML_METHOD_OP
- AML_POWER_RES_OP
- AML_PROCESSOR_OP
- AML_NAME_OP
- AML_ALIAS_OP
- AML_MUTEX_OP
- AML_EVENT_OP
- AML_REGION_OP
- AML_CREATE_FIELD_OP
- AML_CREATE_BIT_FIELD_OP
- AML_CREATE_BYTE_FIELD_OP
- AML_CREATE_WORD_FIELD_OP
- AML_CREATE_DWORD_FIELD_OP
- AML_CREATE_QWORD_FIELD_OP
- AML_INT_NAMEDFIELD_OP
- AML_INT_METHODCALL_OP
- AML_INT_NAMEPATH_OP
-
- Opcodes that define named ACPI objects (AML_NAMED flag)
-
- AML_SCOPE_OP
- AML_DEVICE_OP
- AML_THERMAL_ZONE_OP
- AML_METHOD_OP
- AML_POWER_RES_OP
- AML_PROCESSOR_OP
- AML_NAME_OP
- AML_ALIAS_OP
- AML_MUTEX_OP
- AML_EVENT_OP
- AML_REGION_OP
- AML_INT_NAMEDFIELD_OP
-
- Opcodes that contain executable AML as part of the definition that
- must be deferred until needed
-
- AML_METHOD_OP
- AML_VAR_PACKAGE_OP
- AML_CREATE_FIELD_OP
- AML_CREATE_BIT_FIELD_OP
- AML_CREATE_BYTE_FIELD_OP
- AML_CREATE_WORD_FIELD_OP
- AML_CREATE_DWORD_FIELD_OP
- AML_CREATE_QWORD_FIELD_OP
- AML_REGION_OP
- AML_BUFFER_OP
-
- Field opcodes
-
- AML_CREATE_FIELD_OP
- AML_FIELD_OP
- AML_INDEX_FIELD_OP
- AML_BANK_FIELD_OP
-
- Field "Create" opcodes
-
- AML_CREATE_FIELD_OP
- AML_CREATE_BIT_FIELD_OP
- AML_CREATE_BYTE_FIELD_OP
- AML_CREATE_WORD_FIELD_OP
- AML_CREATE_DWORD_FIELD_OP
- AML_CREATE_QWORD_FIELD_OP
-
- ******************************************************************************/
-
-/*
- * Master Opcode information table. A summary of everything we know about each
- * opcode, all in one place.
- */
-const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
-/*! [Begin] no source code translation */
-/* Index Name Parser Args Interpreter Args ObjectType Class Type Flags */
-
-/* 00 */ ACPI_OP("Zero", ARGP_ZERO_OP, ARGI_ZERO_OP, ACPI_TYPE_INTEGER,
- AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
-/* 01 */ ACPI_OP("One", ARGP_ONE_OP, ARGI_ONE_OP, ACPI_TYPE_INTEGER,
- AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
-/* 02 */ ACPI_OP("Alias", ARGP_ALIAS_OP, ARGI_ALIAS_OP,
- ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_SIMPLE,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 03 */ ACPI_OP("Name", ARGP_NAME_OP, ARGI_NAME_OP, ACPI_TYPE_ANY,
- AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 04 */ ACPI_OP("ByteConst", ARGP_BYTE_OP, ARGI_BYTE_OP,
- ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, AML_CONSTANT),
-/* 05 */ ACPI_OP("WordConst", ARGP_WORD_OP, ARGI_WORD_OP,
- ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, AML_CONSTANT),
-/* 06 */ ACPI_OP("DwordConst", ARGP_DWORD_OP, ARGI_DWORD_OP,
- ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, AML_CONSTANT),
-/* 07 */ ACPI_OP("String", ARGP_STRING_OP, ARGI_STRING_OP,
- ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, AML_CONSTANT),
-/* 08 */ ACPI_OP("Scope", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
- ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_NO_OBJ,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 09 */ ACPI_OP("Buffer", ARGP_BUFFER_OP, ARGI_BUFFER_OP,
- ACPI_TYPE_BUFFER, AML_CLASS_CREATE,
- AML_TYPE_CREATE_OBJECT,
- AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
-/* 0A */ ACPI_OP("Package", ARGP_PACKAGE_OP, ARGI_PACKAGE_OP,
- ACPI_TYPE_PACKAGE, AML_CLASS_CREATE,
- AML_TYPE_CREATE_OBJECT,
- AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
-/* 0B */ ACPI_OP("Method", ARGP_METHOD_OP, ARGI_METHOD_OP,
- ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_COMPLEX,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED | AML_DEFER),
-/* 0C */ ACPI_OP("Local0", ARGP_LOCAL0, ARGI_LOCAL0,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 0D */ ACPI_OP("Local1", ARGP_LOCAL1, ARGI_LOCAL1,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 0E */ ACPI_OP("Local2", ARGP_LOCAL2, ARGI_LOCAL2,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 0F */ ACPI_OP("Local3", ARGP_LOCAL3, ARGI_LOCAL3,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 10 */ ACPI_OP("Local4", ARGP_LOCAL4, ARGI_LOCAL4,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 11 */ ACPI_OP("Local5", ARGP_LOCAL5, ARGI_LOCAL5,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 12 */ ACPI_OP("Local6", ARGP_LOCAL6, ARGI_LOCAL6,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 13 */ ACPI_OP("Local7", ARGP_LOCAL7, ARGI_LOCAL7,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LOCAL_VARIABLE, 0),
-/* 14 */ ACPI_OP("Arg0", ARGP_ARG0, ARGI_ARG0,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 15 */ ACPI_OP("Arg1", ARGP_ARG1, ARGI_ARG1,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 16 */ ACPI_OP("Arg2", ARGP_ARG2, ARGI_ARG2,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 17 */ ACPI_OP("Arg3", ARGP_ARG3, ARGI_ARG3,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 18 */ ACPI_OP("Arg4", ARGP_ARG4, ARGI_ARG4,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 19 */ ACPI_OP("Arg5", ARGP_ARG5, ARGI_ARG5,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 1A */ ACPI_OP("Arg6", ARGP_ARG6, ARGI_ARG6,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_METHOD_ARGUMENT, 0),
-/* 1B */ ACPI_OP("Store", ARGP_STORE_OP, ARGI_STORE_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R),
-/* 1C */ ACPI_OP("RefOf", ARGP_REF_OF_OP, ARGI_REF_OF_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
- AML_FLAGS_EXEC_1A_0T_1R),
-/* 1D */ ACPI_OP("Add", ARGP_ADD_OP, ARGI_ADD_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 1E */ ACPI_OP("Concatenate", ARGP_CONCAT_OP, ARGI_CONCAT_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
-/* 1F */ ACPI_OP("Subtract", ARGP_SUBTRACT_OP, ARGI_SUBTRACT_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 20 */ ACPI_OP("Increment", ARGP_INCREMENT_OP, ARGI_INCREMENT_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_1R,
- AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
-/* 21 */ ACPI_OP("Decrement", ARGP_DECREMENT_OP, ARGI_DECREMENT_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_1R,
- AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
-/* 22 */ ACPI_OP("Multiply", ARGP_MULTIPLY_OP, ARGI_MULTIPLY_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 23 */ ACPI_OP("Divide", ARGP_DIVIDE_OP, ARGI_DIVIDE_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_2T_1R,
- AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
-/* 24 */ ACPI_OP("ShiftLeft", ARGP_SHIFT_LEFT_OP, ARGI_SHIFT_LEFT_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 25 */ ACPI_OP("ShiftRight", ARGP_SHIFT_RIGHT_OP, ARGI_SHIFT_RIGHT_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 26 */ ACPI_OP("And", ARGP_BIT_AND_OP, ARGI_BIT_AND_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 27 */ ACPI_OP("NAnd", ARGP_BIT_NAND_OP, ARGI_BIT_NAND_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 28 */ ACPI_OP("Or", ARGP_BIT_OR_OP, ARGI_BIT_OR_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 29 */ ACPI_OP("NOr", ARGP_BIT_NOR_OP, ARGI_BIT_NOR_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 2A */ ACPI_OP("XOr", ARGP_BIT_XOR_OP, ARGI_BIT_XOR_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
-/* 2B */ ACPI_OP("Not", ARGP_BIT_NOT_OP, ARGI_BIT_NOT_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 2C */ ACPI_OP("FindSetLeftBit", ARGP_FIND_SET_LEFT_BIT_OP,
- ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 2D */ ACPI_OP("FindSetRightBit", ARGP_FIND_SET_RIGHT_BIT_OP,
- ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 2E */ ACPI_OP("DerefOf", ARGP_DEREF_OF_OP, ARGI_DEREF_OF_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R),
-/* 2F */ ACPI_OP("Notify", ARGP_NOTIFY_OP, ARGI_NOTIFY_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R),
-/* 30 */ ACPI_OP("SizeOf", ARGP_SIZE_OF_OP, ARGI_SIZE_OF_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_1R,
- AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
-/* 31 */ ACPI_OP("Index", ARGP_INDEX_OP, ARGI_INDEX_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R),
-/* 32 */ ACPI_OP("Match", ARGP_MATCH_OP, ARGI_MATCH_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R,
- AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
-/* 33 */ ACPI_OP("CreateDWordField", ARGP_CREATE_DWORD_FIELD_OP,
- ARGI_CREATE_DWORD_FIELD_OP,
- ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
- AML_TYPE_CREATE_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
- AML_DEFER | AML_CREATE),
-/* 34 */ ACPI_OP("CreateWordField", ARGP_CREATE_WORD_FIELD_OP,
- ARGI_CREATE_WORD_FIELD_OP,
- ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
- AML_TYPE_CREATE_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
- AML_DEFER | AML_CREATE),
-/* 35 */ ACPI_OP("CreateByteField", ARGP_CREATE_BYTE_FIELD_OP,
- ARGI_CREATE_BYTE_FIELD_OP,
- ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
- AML_TYPE_CREATE_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
- AML_DEFER | AML_CREATE),
-/* 36 */ ACPI_OP("CreateBitField", ARGP_CREATE_BIT_FIELD_OP,
- ARGI_CREATE_BIT_FIELD_OP,
- ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
- AML_TYPE_CREATE_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
- AML_DEFER | AML_CREATE),
-/* 37 */ ACPI_OP("ObjectType", ARGP_TYPE_OP, ARGI_TYPE_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_1R,
- AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
-/* 38 */ ACPI_OP("LAnd", ARGP_LAND_OP, ARGI_LAND_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
- AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
-/* 39 */ ACPI_OP("LOr", ARGP_LOR_OP, ARGI_LOR_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
- AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
-/* 3A */ ACPI_OP("LNot", ARGP_LNOT_OP, ARGI_LNOT_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
- AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
-/* 3B */ ACPI_OP("LEqual", ARGP_LEQUAL_OP, ARGI_LEQUAL_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_0T_1R,
- AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
-/* 3C */ ACPI_OP("LGreater", ARGP_LGREATER_OP, ARGI_LGREATER_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_0T_1R,
- AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
-/* 3D */ ACPI_OP("LLess", ARGP_LLESS_OP, ARGI_LLESS_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
- AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
-/* 3E */ ACPI_OP("If", ARGP_IF_OP, ARGI_IF_OP, ACPI_TYPE_ANY,
- AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
-/* 3F */ ACPI_OP("Else", ARGP_ELSE_OP, ARGI_ELSE_OP, ACPI_TYPE_ANY,
- AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
-/* 40 */ ACPI_OP("While", ARGP_WHILE_OP, ARGI_WHILE_OP, ACPI_TYPE_ANY,
- AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
-/* 41 */ ACPI_OP("Noop", ARGP_NOOP_OP, ARGI_NOOP_OP, ACPI_TYPE_ANY,
- AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
-/* 42 */ ACPI_OP("Return", ARGP_RETURN_OP, ARGI_RETURN_OP,
- ACPI_TYPE_ANY, AML_CLASS_CONTROL,
- AML_TYPE_CONTROL, AML_HAS_ARGS),
-/* 43 */ ACPI_OP("Break", ARGP_BREAK_OP, ARGI_BREAK_OP, ACPI_TYPE_ANY,
- AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
-/* 44 */ ACPI_OP("BreakPoint", ARGP_BREAK_POINT_OP, ARGI_BREAK_POINT_OP,
- ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
-/* 45 */ ACPI_OP("Ones", ARGP_ONES_OP, ARGI_ONES_OP, ACPI_TYPE_INTEGER,
- AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
-
-/* Prefixed opcodes (Two-byte opcodes with a prefix op) */
-
-/* 46 */ ACPI_OP("Mutex", ARGP_MUTEX_OP, ARGI_MUTEX_OP, ACPI_TYPE_MUTEX,
- AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 47 */ ACPI_OP("Event", ARGP_EVENT_OP, ARGI_EVENT_OP, ACPI_TYPE_EVENT,
- AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
- AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
-/* 48 */ ACPI_OP("CondRefOf", ARGP_COND_REF_OF_OP, ARGI_COND_REF_OF_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
-/* 49 */ ACPI_OP("CreateField", ARGP_CREATE_FIELD_OP,
- ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,
- AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
- AML_DEFER | AML_FIELD | AML_CREATE),
-/* 4A */ ACPI_OP("Load", ARGP_LOAD_OP, ARGI_LOAD_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R,
- AML_FLAGS_EXEC_1A_1T_0R),
-/* 4B */ ACPI_OP("Stall", ARGP_STALL_OP, ARGI_STALL_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
- AML_FLAGS_EXEC_1A_0T_0R),
-/* 4C */ ACPI_OP("Sleep", ARGP_SLEEP_OP, ARGI_SLEEP_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
- AML_FLAGS_EXEC_1A_0T_0R),
-/* 4D */ ACPI_OP("Acquire", ARGP_ACQUIRE_OP, ARGI_ACQUIRE_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R),
-/* 4E */ ACPI_OP("Signal", ARGP_SIGNAL_OP, ARGI_SIGNAL_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
-/* 4F */ ACPI_OP("Wait", ARGP_WAIT_OP, ARGI_WAIT_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
- AML_FLAGS_EXEC_2A_0T_1R),
-/* 50 */ ACPI_OP("Reset", ARGP_RESET_OP, ARGI_RESET_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
- AML_FLAGS_EXEC_1A_0T_0R),
-/* 51 */ ACPI_OP("Release", ARGP_RELEASE_OP, ARGI_RELEASE_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
-/* 52 */ ACPI_OP("FromBCD", ARGP_FROM_BCD_OP, ARGI_FROM_BCD_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 53 */ ACPI_OP("ToBCD", ARGP_TO_BCD_OP, ARGI_TO_BCD_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 54 */ ACPI_OP("Unload", ARGP_UNLOAD_OP, ARGI_UNLOAD_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
-/* 55 */ ACPI_OP("Revision", ARGP_REVISION_OP, ARGI_REVISION_OP,
- ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
- AML_TYPE_CONSTANT, 0),
-/* 56 */ ACPI_OP("Debug", ARGP_DEBUG_OP, ARGI_DEBUG_OP,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_CONSTANT, 0),
-/* 57 */ ACPI_OP("Fatal", ARGP_FATAL_OP, ARGI_FATAL_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R,
- AML_FLAGS_EXEC_3A_0T_0R),
-/* 58 */ ACPI_OP("OperationRegion", ARGP_REGION_OP, ARGI_REGION_OP,
- ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_COMPLEX,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED | AML_DEFER),
-/* 59 */ ACPI_OP("Field", ARGP_FIELD_OP, ARGI_FIELD_OP, ACPI_TYPE_ANY,
- AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
-/* 5A */ ACPI_OP("Device", ARGP_DEVICE_OP, ARGI_DEVICE_OP,
- ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_NO_OBJ,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 5B */ ACPI_OP("Processor", ARGP_PROCESSOR_OP, ARGI_PROCESSOR_OP,
- ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_SIMPLE,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 5C */ ACPI_OP("PowerResource", ARGP_POWER_RES_OP, ARGI_POWER_RES_OP,
- ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_SIMPLE,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 5D */ ACPI_OP("ThermalZone", ARGP_THERMAL_ZONE_OP,
- ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL,
- AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED),
-/* 5E */ ACPI_OP("IndexField", ARGP_INDEX_FIELD_OP, ARGI_INDEX_FIELD_OP,
- ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
-/* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP,
- ACPI_TYPE_LOCAL_BANK_FIELD, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD |
- AML_DEFER),
-
-/* Internal opcodes that map to invalid AML opcodes */
-
-/* 60 */ ACPI_OP("LNotEqual", ARGP_LNOTEQUAL_OP, ARGI_LNOTEQUAL_OP,
- ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
- AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
-/* 61 */ ACPI_OP("LLessEqual", ARGP_LLESSEQUAL_OP, ARGI_LLESSEQUAL_OP,
- ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
- AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
-/* 62 */ ACPI_OP("LGreaterEqual", ARGP_LGREATEREQUAL_OP,
- ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY,
- AML_CLASS_INTERNAL, AML_TYPE_BOGUS,
- AML_HAS_ARGS | AML_CONSTANT),
-/* 63 */ ACPI_OP("-NamePath-", ARGP_NAMEPATH_OP, ARGI_NAMEPATH_OP,
- ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE),
-/* 64 */ ACPI_OP("-MethodCall-", ARGP_METHODCALL_OP, ARGI_METHODCALL_OP,
- ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL,
- AML_TYPE_METHOD_CALL,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
-/* 65 */ ACPI_OP("-ByteList-", ARGP_BYTELIST_OP, ARGI_BYTELIST_OP,
- ACPI_TYPE_ANY, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, 0),
-/* 66 */ ACPI_OP("-ReservedField-", ARGP_RESERVEDFIELD_OP,
- ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY,
- AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
-/* 67 */ ACPI_OP("-NamedField-", ARGP_NAMEDFIELD_OP, ARGI_NAMEDFIELD_OP,
- ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
- AML_TYPE_BOGUS,
- AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
-/* 68 */ ACPI_OP("-AccessField-", ARGP_ACCESSFIELD_OP,
- ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY,
- AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
-/* 69 */ ACPI_OP("-StaticString", ARGP_STATICSTRING_OP,
- ARGI_STATICSTRING_OP, ACPI_TYPE_ANY,
- AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
-/* 6A */ ACPI_OP("-Return Value-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
- AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN,
- AML_HAS_ARGS | AML_HAS_RETVAL),
-/* 6B */ ACPI_OP("-UNKNOWN_OP-", ARG_NONE, ARG_NONE, ACPI_TYPE_INVALID,
- AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS),
-/* 6C */ ACPI_OP("-ASCII_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
- AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS),
-/* 6D */ ACPI_OP("-PREFIX_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
- AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS),
-
-/* ACPI 2.0 opcodes */
-
-/* 6E */ ACPI_OP("QwordConst", ARGP_QWORD_OP, ARGI_QWORD_OP,
- ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
- AML_TYPE_LITERAL, AML_CONSTANT),
- /* 6F */ ACPI_OP("Package", /* Var */ ARGP_VAR_PACKAGE_OP,
- ARGI_VAR_PACKAGE_OP, ACPI_TYPE_PACKAGE,
- AML_CLASS_CREATE, AML_TYPE_CREATE_OBJECT,
- AML_HAS_ARGS | AML_DEFER),
-/* 70 */ ACPI_OP("ConcatenateResTemplate", ARGP_CONCAT_RES_OP,
- ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
-/* 71 */ ACPI_OP("Mod", ARGP_MOD_OP, ARGI_MOD_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
-/* 72 */ ACPI_OP("CreateQWordField", ARGP_CREATE_QWORD_FIELD_OP,
- ARGI_CREATE_QWORD_FIELD_OP,
- ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
- AML_TYPE_CREATE_FIELD,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
- AML_DEFER | AML_CREATE),
-/* 73 */ ACPI_OP("ToBuffer", ARGP_TO_BUFFER_OP, ARGI_TO_BUFFER_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 74 */ ACPI_OP("ToDecimalString", ARGP_TO_DEC_STR_OP,
- ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 75 */ ACPI_OP("ToHexString", ARGP_TO_HEX_STR_OP, ARGI_TO_HEX_STR_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 76 */ ACPI_OP("ToInteger", ARGP_TO_INTEGER_OP, ARGI_TO_INTEGER_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_1T_1R,
- AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
-/* 77 */ ACPI_OP("ToString", ARGP_TO_STRING_OP, ARGI_TO_STRING_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_2A_1T_1R,
- AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
-/* 78 */ ACPI_OP("CopyObject", ARGP_COPY_OP, ARGI_COPY_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
-/* 79 */ ACPI_OP("Mid", ARGP_MID_OP, ARGI_MID_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R,
- AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
-/* 7A */ ACPI_OP("Continue", ARGP_CONTINUE_OP, ARGI_CONTINUE_OP,
- ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
-/* 7B */ ACPI_OP("LoadTable", ARGP_LOAD_TABLE_OP, ARGI_LOAD_TABLE_OP,
- ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
- AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
-/* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP,
- ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
- AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
- AML_NSNODE | AML_NAMED | AML_DEFER),
-/* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
- ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
- AML_TYPE_NAMED_NO_OBJ,
- AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE),
-
-/* ACPI 3.0 opcodes */
-
-/* 7E */ ACPI_OP("Timer", ARGP_TIMER_OP, ARGI_TIMER_OP, ACPI_TYPE_ANY,
- AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R,
- AML_FLAGS_EXEC_0A_0T_1R)
-
-/*! [End] no source code translation !*/
-};
-
-/*
- * This table is directly indexed by the opcodes, and returns an
- * index into the table above
- */
-static const u8 acpi_gbl_short_op_index[256] = {
-/* 0 1 2 3 4 5 6 7 */
-/* 8 9 A B C D E F */
-/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
-/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
-/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
-/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
-/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
-/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
-/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
-/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
-/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
-/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
-/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
-/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
-/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
-/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
-/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
-/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
-/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
-/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
-/* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
-/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
-};
-
-/*
- * This table is indexed by the second opcode of the extended opcode
- * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info)
- */
-static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = {
-/* 0 1 2 3 4 5 6 7 */
-/* 8 9 A B C D E F */
-/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
-/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
-/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
-/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
-/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
-/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
-/* 0x88 */ 0x7C,
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_opcode_info
- *
- * PARAMETERS: Opcode - The AML opcode
- *
- * RETURN: A pointer to the info about the opcode.
- *
- * DESCRIPTION: Find AML opcode description based on the opcode.
- * NOTE: This procedure must ALWAYS return a valid pointer!
- *
- ******************************************************************************/
-
-const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)
-{
- ACPI_FUNCTION_NAME(ps_get_opcode_info);
-
- /*
- * Detect normal 8-bit opcode or extended 16-bit opcode
- */
- if (!(opcode & 0xFF00)) {
-
- /* Simple (8-bit) opcode: 0-255, can't index beyond table */
-
- return (&acpi_gbl_aml_op_info
- [acpi_gbl_short_op_index[(u8) opcode]]);
- }
-
- if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
- (((u8) opcode) <= MAX_EXTENDED_OPCODE)) {
-
- /* Valid extended (16-bit) opcode */
-
- return (&acpi_gbl_aml_op_info
- [acpi_gbl_long_op_index[(u8) opcode]]);
- }
-
- /* Unknown AML opcode */
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "Unknown AML opcode [%4.4X]\n", opcode));
-
- return (&acpi_gbl_aml_op_info[_UNK]);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_opcode_name
- *
- * PARAMETERS: Opcode - The AML opcode
- *
- * RETURN: A pointer to the name of the opcode (ASCII String)
- * Note: Never returns NULL.
- *
- * DESCRIPTION: Translate an opcode into a human-readable string
- *
- ******************************************************************************/
-
-char *acpi_ps_get_opcode_name(u16 opcode)
-{
-#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
-
- const struct acpi_opcode_info *op;
-
- op = acpi_ps_get_opcode_info(opcode);
-
- /* Always guaranteed to return a valid pointer */
-
- return (op->name);
-
-#else
- return ("OpcodeName unavailable");
-
-#endif
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_argument_count
- *
- * PARAMETERS: op_type - Type associated with the AML opcode
- *
- * RETURN: Argument count
- *
- * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
- *
- ******************************************************************************/
-
-u8 acpi_ps_get_argument_count(u32 op_type)
-{
-
- if (op_type <= AML_TYPE_EXEC_6A_0T_1R) {
- return (acpi_gbl_argument_count[op_type]);
- }
-
- return (0);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psparse - Parser top level AML parse routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-/*
- * Parse the AML and build an operation tree as most interpreters,
- * like Perl, do. Parsing is done by hand rather than with a YACC
- * generated parser to tightly constrain stack and dynamic memory
- * usage. At the same time, parsing is kept flexible and the code
- * fairly compact by parsing based on a list of AML opcode
- * templates in aml_op_info[]
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/amlcode.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psparse")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_opcode_size
- *
- * PARAMETERS: Opcode - An AML opcode
- *
- * RETURN: Size of the opcode, in bytes (1 or 2)
- *
- * DESCRIPTION: Get the size of the current opcode.
- *
- ******************************************************************************/
-u32 acpi_ps_get_opcode_size(u32 opcode)
-{
-
- /* Extended (2-byte) opcode if > 255 */
-
- if (opcode > 0x00FF) {
- return (2);
- }
-
- /* Otherwise, just a single byte opcode */
-
- return (1);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_peek_opcode
- *
- * PARAMETERS: parser_state - A parser state object
- *
- * RETURN: Next AML opcode
- *
- * DESCRIPTION: Get next AML opcode (without incrementing AML pointer)
- *
- ******************************************************************************/
-
-u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state)
-{
- u8 *aml;
- u16 opcode;
-
- aml = parser_state->aml;
- opcode = (u16) ACPI_GET8(aml);
-
- if (opcode == AML_EXTENDED_OP_PREFIX) {
-
- /* Extended opcode, get the second opcode byte */
-
- aml++;
- opcode = (u16) ((opcode << 8) | ACPI_GET8(aml));
- }
-
- return (opcode);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_complete_this_op
- *
- * PARAMETERS: walk_state - Current State
- * Op - Op to complete
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform any cleanup at the completion of an Op.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
- union acpi_parse_object * op)
-{
- union acpi_parse_object *prev;
- union acpi_parse_object *next;
- const struct acpi_opcode_info *parent_info;
- union acpi_parse_object *replacement_op = NULL;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op);
-
- /* Check for null Op, can happen if AML code is corrupt */
-
- if (!op) {
- return_ACPI_STATUS(AE_OK); /* OK for now */
- }
-
- /* Delete this op and the subtree below it if asked to */
-
- if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) !=
- ACPI_PARSE_DELETE_TREE)
- || (walk_state->op_info->class == AML_CLASS_ARGUMENT)) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Make sure that we only delete this subtree */
-
- if (op->common.parent) {
- prev = op->common.parent->common.value.arg;
- if (!prev) {
-
- /* Nothing more to do */
-
- goto cleanup;
- }
-
- /*
- * Check if we need to replace the operator and its subtree
- * with a return value op (placeholder op)
- */
- parent_info =
- acpi_ps_get_opcode_info(op->common.parent->common.
- aml_opcode);
-
- switch (parent_info->class) {
- case AML_CLASS_CONTROL:
- break;
-
- case AML_CLASS_CREATE:
-
- /*
- * These opcodes contain term_arg operands. The current
- * op must be replaced by a placeholder return op
- */
- replacement_op =
- acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
- if (!replacement_op) {
- status = AE_NO_MEMORY;
- }
- break;
-
- case AML_CLASS_NAMED_OBJECT:
-
- /*
- * These opcodes contain term_arg operands. The current
- * op must be replaced by a placeholder return op
- */
- if ((op->common.parent->common.aml_opcode ==
- AML_REGION_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_DATA_REGION_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_BUFFER_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_PACKAGE_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_BANK_FIELD_OP)
- || (op->common.parent->common.aml_opcode ==
- AML_VAR_PACKAGE_OP)) {
- replacement_op =
- acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
- if (!replacement_op) {
- status = AE_NO_MEMORY;
- }
- } else
- if ((op->common.parent->common.aml_opcode ==
- AML_NAME_OP)
- && (walk_state->pass_number <=
- ACPI_IMODE_LOAD_PASS2)) {
- if ((op->common.aml_opcode == AML_BUFFER_OP)
- || (op->common.aml_opcode == AML_PACKAGE_OP)
- || (op->common.aml_opcode ==
- AML_VAR_PACKAGE_OP)) {
- replacement_op =
- acpi_ps_alloc_op(op->common.
- aml_opcode);
- if (!replacement_op) {
- status = AE_NO_MEMORY;
- } else {
- replacement_op->named.data =
- op->named.data;
- replacement_op->named.length =
- op->named.length;
- }
- }
- }
- break;
-
- default:
-
- replacement_op =
- acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
- if (!replacement_op) {
- status = AE_NO_MEMORY;
- }
- }
-
- /* We must unlink this op from the parent tree */
-
- if (prev == op) {
-
- /* This op is the first in the list */
-
- if (replacement_op) {
- replacement_op->common.parent =
- op->common.parent;
- replacement_op->common.value.arg = NULL;
- replacement_op->common.node = op->common.node;
- op->common.parent->common.value.arg =
- replacement_op;
- replacement_op->common.next = op->common.next;
- } else {
- op->common.parent->common.value.arg =
- op->common.next;
- }
- }
-
- /* Search the parent list */
-
- else
- while (prev) {
-
- /* Traverse all siblings in the parent's argument list */
-
- next = prev->common.next;
- if (next == op) {
- if (replacement_op) {
- replacement_op->common.parent =
- op->common.parent;
- replacement_op->common.value.
- arg = NULL;
- replacement_op->common.node =
- op->common.node;
- prev->common.next =
- replacement_op;
- replacement_op->common.next =
- op->common.next;
- next = NULL;
- } else {
- prev->common.next =
- op->common.next;
- next = NULL;
- }
- }
- prev = next;
- }
- }
-
- cleanup:
-
- /* Now we can actually delete the subtree rooted at Op */
-
- acpi_ps_delete_parse_tree(op);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_next_parse_state
- *
- * PARAMETERS: walk_state - Current state
- * Op - Current parse op
- * callback_status - Status from previous operation
- *
- * RETURN: Status
- *
- * DESCRIPTION: Update the parser state based upon the return exception from
- * the parser callback.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
- union acpi_parse_object *op,
- acpi_status callback_status)
-{
- struct acpi_parse_state *parser_state = &walk_state->parser_state;
- acpi_status status = AE_CTRL_PENDING;
-
- ACPI_FUNCTION_TRACE_PTR(ps_next_parse_state, op);
-
- switch (callback_status) {
- case AE_CTRL_TERMINATE:
- /*
- * A control method was terminated via a RETURN statement.
- * The walk of this method is complete.
- */
- parser_state->aml = parser_state->aml_end;
- status = AE_CTRL_TERMINATE;
- break;
-
- case AE_CTRL_BREAK:
-
- parser_state->aml = walk_state->aml_last_while;
- walk_state->control_state->common.value = FALSE;
- status = AE_CTRL_BREAK;
- break;
-
- case AE_CTRL_CONTINUE:
-
- parser_state->aml = walk_state->aml_last_while;
- status = AE_CTRL_CONTINUE;
- break;
-
- case AE_CTRL_PENDING:
-
- parser_state->aml = walk_state->aml_last_while;
- break;
-
-#if 0
- case AE_CTRL_SKIP:
-
- parser_state->aml = parser_state->scope->parse_scope.pkg_end;
- status = AE_OK;
- break;
-#endif
-
- case AE_CTRL_TRUE:
- /*
- * Predicate of an IF was true, and we are at the matching ELSE.
- * Just close out this package
- */
- parser_state->aml = acpi_ps_get_next_package_end(parser_state);
- status = AE_CTRL_PENDING;
- break;
-
- case AE_CTRL_FALSE:
- /*
- * Either an IF/WHILE Predicate was false or we encountered a BREAK
- * opcode. In both cases, we do not execute the rest of the
- * package; We simply close out the parent (finishing the walk of
- * this branch of the tree) and continue execution at the parent
- * level.
- */
- parser_state->aml = parser_state->scope->parse_scope.pkg_end;
-
- /* In the case of a BREAK, just force a predicate (if any) to FALSE */
-
- walk_state->control_state->common.value = FALSE;
- status = AE_CTRL_END;
- break;
-
- case AE_CTRL_TRANSFER:
-
- /* A method call (invocation) -- transfer control */
-
- status = AE_CTRL_TRANSFER;
- walk_state->prev_op = op;
- walk_state->method_call_op = op;
- walk_state->method_call_node =
- (op->common.value.arg)->common.node;
-
- /* Will return value (if any) be used by the caller? */
-
- walk_state->return_used =
- acpi_ds_is_result_used(op, walk_state);
- break;
-
- default:
-
- status = callback_status;
- if ((callback_status & AE_CODE_MASK) == AE_CODE_CONTROL) {
- status = AE_OK;
- }
- break;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_parse_aml
- *
- * PARAMETERS: walk_state - Current state
- *
- *
- * RETURN: Status
- *
- * DESCRIPTION: Parse raw AML and return a tree of ops
- *
- ******************************************************************************/
-
-acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- struct acpi_thread_state *thread;
- struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list;
- struct acpi_walk_state *previous_walk_state;
-
- ACPI_FUNCTION_TRACE(ps_parse_aml);
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Entered with WalkState=%p Aml=%p size=%X\n",
- walk_state, walk_state->parser_state.aml,
- walk_state->parser_state.aml_size));
-
- if (!walk_state->parser_state.aml) {
- return_ACPI_STATUS(AE_NULL_OBJECT);
- }
-
- /* Create and initialize a new thread state */
-
- thread = acpi_ut_create_thread_state();
- if (!thread) {
- if (walk_state->method_desc) {
-
- /* Executing a control method - additional cleanup */
-
- acpi_ds_terminate_control_method(
- walk_state->method_desc, walk_state);
- }
-
- acpi_ds_delete_walk_state(walk_state);
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- walk_state->thread = thread;
-
- /*
- * If executing a method, the starting sync_level is this method's
- * sync_level
- */
- if (walk_state->method_desc) {
- walk_state->thread->current_sync_level =
- walk_state->method_desc->method.sync_level;
- }
-
- acpi_ds_push_walk_state(walk_state, thread);
-
- /*
- * This global allows the AML debugger to get a handle to the currently
- * executing control method.
- */
- acpi_gbl_current_walk_list = thread;
-
- /*
- * Execute the walk loop as long as there is a valid Walk State. This
- * handles nested control method invocations without recursion.
- */
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "State=%p\n", walk_state));
-
- status = AE_OK;
- while (walk_state) {
- if (ACPI_SUCCESS(status)) {
- /*
- * The parse_loop executes AML until the method terminates
- * or calls another method.
- */
- status = acpi_ps_parse_loop(walk_state);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Completed one call to walk loop, %s State=%p\n",
- acpi_format_exception(status), walk_state));
-
- if (status == AE_CTRL_TRANSFER) {
- /*
- * A method call was detected.
- * Transfer control to the called control method
- */
- status =
- acpi_ds_call_control_method(thread, walk_state,
- NULL);
- if (ACPI_FAILURE(status)) {
- status =
- acpi_ds_method_error(status, walk_state);
- }
-
- /*
- * If the transfer to the new method method call worked, a new walk
- * state was created -- get it
- */
- walk_state = acpi_ds_get_current_walk_state(thread);
- continue;
- } else if (status == AE_CTRL_TERMINATE) {
- status = AE_OK;
- } else if ((status != AE_OK) && (walk_state->method_desc)) {
-
- /* Either the method parse or actual execution failed */
-
- ACPI_ERROR_METHOD("Method parse/execution failed",
- walk_state->method_node, NULL,
- status);
-
- /* Check for possible multi-thread reentrancy problem */
-
- if ((status == AE_ALREADY_EXISTS) &&
- (!walk_state->method_desc->method.mutex)) {
- ACPI_INFO((AE_INFO,
- "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error",
- walk_state->method_node->name.
- ascii));
-
- /*
- * Method tried to create an object twice. The probable cause is
- * that the method cannot handle reentrancy.
- *
- * The method is marked not_serialized, but it tried to create
- * a named object, causing the second thread entrance to fail.
- * Workaround this problem by marking the method permanently
- * as Serialized.
- */
- walk_state->method_desc->method.method_flags |=
- AML_METHOD_SERIALIZED;
- walk_state->method_desc->method.sync_level = 0;
- }
- }
-
- /* We are done with this walk, move on to the parent if any */
-
- walk_state = acpi_ds_pop_walk_state(thread);
-
- /* Reset the current scope to the beginning of scope stack */
-
- acpi_ds_scope_stack_clear(walk_state);
-
- /*
- * If we just returned from the execution of a control method or if we
- * encountered an error during the method parse phase, there's lots of
- * cleanup to do
- */
- if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) ==
- ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) {
- acpi_ds_terminate_control_method(walk_state->
- method_desc,
- walk_state);
- }
-
- /* Delete this walk state and all linked control states */
-
- acpi_ps_cleanup_scope(&walk_state->parser_state);
- previous_walk_state = walk_state;
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "ReturnValue=%p, ImplicitValue=%p State=%p\n",
- walk_state->return_desc,
- walk_state->implicit_return_obj, walk_state));
-
- /* Check if we have restarted a preempted walk */
-
- walk_state = acpi_ds_get_current_walk_state(thread);
- if (walk_state) {
- if (ACPI_SUCCESS(status)) {
- /*
- * There is another walk state, restart it.
- * If the method return value is not used by the parent,
- * The object is deleted
- */
- if (!previous_walk_state->return_desc) {
- /*
- * In slack mode execution, if there is no return value
- * we should implicitly return zero (0) as a default value.
- */
- if (acpi_gbl_enable_interpreter_slack &&
- !previous_walk_state->
- implicit_return_obj) {
- previous_walk_state->
- implicit_return_obj =
- acpi_ut_create_internal_object
- (ACPI_TYPE_INTEGER);
- if (!previous_walk_state->
- implicit_return_obj) {
- return_ACPI_STATUS
- (AE_NO_MEMORY);
- }
-
- previous_walk_state->
- implicit_return_obj->
- integer.value = 0;
- }
-
- /* Restart the calling control method */
-
- status =
- acpi_ds_restart_control_method
- (walk_state,
- previous_walk_state->
- implicit_return_obj);
- } else {
- /*
- * We have a valid return value, delete any implicit
- * return value.
- */
- acpi_ds_clear_implicit_return
- (previous_walk_state);
-
- status =
- acpi_ds_restart_control_method
- (walk_state,
- previous_walk_state->return_desc);
- }
- if (ACPI_SUCCESS(status)) {
- walk_state->walk_type |=
- ACPI_WALK_METHOD_RESTART;
- }
- } else {
- /* On error, delete any return object or implicit return */
-
- acpi_ut_remove_reference(previous_walk_state->
- return_desc);
- acpi_ds_clear_implicit_return
- (previous_walk_state);
- }
- }
-
- /*
- * Just completed a 1st-level method, save the final internal return
- * value (if any)
- */
- else if (previous_walk_state->caller_return_desc) {
- if (previous_walk_state->implicit_return_obj) {
- *(previous_walk_state->caller_return_desc) =
- previous_walk_state->implicit_return_obj;
- } else {
- /* NULL if no return value */
-
- *(previous_walk_state->caller_return_desc) =
- previous_walk_state->return_desc;
- }
- } else {
- if (previous_walk_state->return_desc) {
-
- /* Caller doesn't want it, must delete it */
-
- acpi_ut_remove_reference(previous_walk_state->
- return_desc);
- }
- if (previous_walk_state->implicit_return_obj) {
-
- /* Caller doesn't want it, must delete it */
-
- acpi_ut_remove_reference(previous_walk_state->
- implicit_return_obj);
- }
- }
-
- acpi_ds_delete_walk_state(previous_walk_state);
- }
-
- /* Normal exit */
-
- acpi_ex_release_all_mutexes(thread);
- acpi_ut_delete_generic_state(ACPI_CAST_PTR
- (union acpi_generic_state, thread));
- acpi_gbl_current_walk_list = prev_walk_list;
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psscope - Parser scope stack management routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psscope")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_parent_scope
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: Pointer to an Op object
- *
- * DESCRIPTION: Get parent of current op being parsed
- *
- ******************************************************************************/
-union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state
- *parser_state)
-{
-
- return (parser_state->scope->parse_scope.op);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_has_completed_scope
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: Boolean, TRUE = scope completed.
- *
- * DESCRIPTION: Is parsing of current argument complete? Determined by
- * 1) AML pointer is at or beyond the end of the scope
- * 2) The scope argument count has reached zero.
- *
- ******************************************************************************/
-
-u8 acpi_ps_has_completed_scope(struct acpi_parse_state * parser_state)
-{
-
- return ((u8)
- ((parser_state->aml >= parser_state->scope->parse_scope.arg_end
- || !parser_state->scope->parse_scope.arg_count)));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_init_scope
- *
- * PARAMETERS: parser_state - Current parser state object
- * Root - the Root Node of this new scope
- *
- * RETURN: Status
- *
- * DESCRIPTION: Allocate and init a new scope object
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ps_init_scope(struct acpi_parse_state * parser_state,
- union acpi_parse_object * root_op)
-{
- union acpi_generic_state *scope;
-
- ACPI_FUNCTION_TRACE_PTR(ps_init_scope, root_op);
-
- scope = acpi_ut_create_generic_state();
- if (!scope) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_RPSCOPE;
- scope->parse_scope.op = root_op;
- scope->parse_scope.arg_count = ACPI_VAR_ARGS;
- scope->parse_scope.arg_end = parser_state->aml_end;
- scope->parse_scope.pkg_end = parser_state->aml_end;
-
- parser_state->scope = scope;
- parser_state->start_op = root_op;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_push_scope
- *
- * PARAMETERS: parser_state - Current parser state object
- * Op - Current op to be pushed
- * remaining_args - List of args remaining
- * arg_count - Fixed or variable number of args
- *
- * RETURN: Status
- *
- * DESCRIPTION: Push current op to begin parsing its argument
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ps_push_scope(struct acpi_parse_state *parser_state,
- union acpi_parse_object *op,
- u32 remaining_args, u32 arg_count)
-{
- union acpi_generic_state *scope;
-
- ACPI_FUNCTION_TRACE_PTR(ps_push_scope, op);
-
- scope = acpi_ut_create_generic_state();
- if (!scope) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_PSCOPE;
- scope->parse_scope.op = op;
- scope->parse_scope.arg_list = remaining_args;
- scope->parse_scope.arg_count = arg_count;
- scope->parse_scope.pkg_end = parser_state->pkg_end;
-
- /* Push onto scope stack */
-
- acpi_ut_push_generic_state(&parser_state->scope, scope);
-
- if (arg_count == ACPI_VAR_ARGS) {
-
- /* Multiple arguments */
-
- scope->parse_scope.arg_end = parser_state->pkg_end;
- } else {
- /* Single argument */
-
- scope->parse_scope.arg_end = ACPI_TO_POINTER(ACPI_MAX_PTR);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_pop_scope
- *
- * PARAMETERS: parser_state - Current parser state object
- * Op - Where the popped op is returned
- * arg_list - Where the popped "next argument" is
- * returned
- * arg_count - Count of objects in arg_list
- *
- * RETURN: Status
- *
- * DESCRIPTION: Return to parsing a previous op
- *
- ******************************************************************************/
-
-void
-acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
- union acpi_parse_object **op, u32 * arg_list, u32 * arg_count)
-{
- union acpi_generic_state *scope = parser_state->scope;
-
- ACPI_FUNCTION_TRACE(ps_pop_scope);
-
- /* Only pop the scope if there is in fact a next scope */
-
- if (scope->common.next) {
- scope = acpi_ut_pop_generic_state(&parser_state->scope);
-
- /* Return to parsing previous op */
-
- *op = scope->parse_scope.op;
- *arg_list = scope->parse_scope.arg_list;
- *arg_count = scope->parse_scope.arg_count;
- parser_state->pkg_end = scope->parse_scope.pkg_end;
-
- /* All done with this scope state structure */
-
- acpi_ut_delete_generic_state(scope);
- } else {
- /* Empty parse stack, prepare to fetch next opcode */
-
- *op = NULL;
- *arg_list = 0;
- *arg_count = 0;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "Popped Op %p Args %X\n", *op, *arg_count));
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_cleanup_scope
- *
- * PARAMETERS: parser_state - Current parser state object
- *
- * RETURN: None
- *
- * DESCRIPTION: Destroy available list, remaining stack levels, and return
- * root scope
- *
- ******************************************************************************/
-
-void acpi_ps_cleanup_scope(struct acpi_parse_state *parser_state)
-{
- union acpi_generic_state *scope;
-
- ACPI_FUNCTION_TRACE_PTR(ps_cleanup_scope, parser_state);
-
- if (!parser_state) {
- return_VOID;
- }
-
- /* Delete anything on the scope stack */
-
- while (parser_state->scope) {
- scope = acpi_ut_pop_generic_state(&parser_state->scope);
- acpi_ut_delete_generic_state(scope);
- }
-
- return_VOID;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: pstree - Parser op tree manipulation/traversal/search
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("pstree")
-
-/* Local prototypes */
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op);
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_arg
- *
- * PARAMETERS: Op - Get an argument for this op
- * Argn - Nth argument to get
- *
- * RETURN: The argument (as an Op object). NULL if argument does not exist
- *
- * DESCRIPTION: Get the specified op's argument.
- *
- ******************************************************************************/
-
-union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn)
-{
- union acpi_parse_object *arg = NULL;
- const struct acpi_opcode_info *op_info;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Get the info structure for this opcode */
-
- op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
- if (op_info->class == AML_CLASS_UNKNOWN) {
-
- /* Invalid opcode or ASCII character */
-
- return (NULL);
- }
-
- /* Check if this opcode requires argument sub-objects */
-
- if (!(op_info->flags & AML_HAS_ARGS)) {
-
- /* Has no linked argument objects */
-
- return (NULL);
- }
-
- /* Get the requested argument object */
-
- arg = op->common.value.arg;
- while (arg && argn) {
- argn--;
- arg = arg->common.next;
- }
-
- return (arg);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_append_arg
- *
- * PARAMETERS: Op - Append an argument to this Op.
- * Arg - Argument Op to append
- *
- * RETURN: None.
- *
- * DESCRIPTION: Append an argument to an op's argument list (a NULL arg is OK)
- *
- ******************************************************************************/
-
-void
-acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg)
-{
- union acpi_parse_object *prev_arg;
- const struct acpi_opcode_info *op_info;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!op) {
- return;
- }
-
- /* Get the info structure for this opcode */
-
- op_info = acpi_ps_get_opcode_info(op->common.aml_opcode);
- if (op_info->class == AML_CLASS_UNKNOWN) {
-
- /* Invalid opcode */
-
- ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X",
- op->common.aml_opcode));
- return;
- }
-
- /* Check if this opcode requires argument sub-objects */
-
- if (!(op_info->flags & AML_HAS_ARGS)) {
-
- /* Has no linked argument objects */
-
- return;
- }
-
- /* Append the argument to the linked argument list */
-
- if (op->common.value.arg) {
-
- /* Append to existing argument list */
-
- prev_arg = op->common.value.arg;
- while (prev_arg->common.next) {
- prev_arg = prev_arg->common.next;
- }
- prev_arg->common.next = arg;
- } else {
- /* No argument list, this will be the first argument */
-
- op->common.value.arg = arg;
- }
-
- /* Set the parent in this arg and any args linked after it */
-
- while (arg) {
- arg->common.parent = op;
- arg = arg->common.next;
-
- op->common.arg_list_length++;
- }
-}
-
-#ifdef ACPI_FUTURE_USAGE
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_depth_next
- *
- * PARAMETERS: Origin - Root of subtree to search
- * Op - Last (previous) Op that was found
- *
- * RETURN: Next Op found in the search.
- *
- * DESCRIPTION: Get next op in tree (walking the tree in depth-first order)
- * Return NULL when reaching "origin" or when walking up from root
- *
- ******************************************************************************/
-
-union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
- union acpi_parse_object *op)
-{
- union acpi_parse_object *next = NULL;
- union acpi_parse_object *parent;
- union acpi_parse_object *arg;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!op) {
- return (NULL);
- }
-
- /* Look for an argument or child */
-
- next = acpi_ps_get_arg(op, 0);
- if (next) {
- return (next);
- }
-
- /* Look for a sibling */
-
- next = op->common.next;
- if (next) {
- return (next);
- }
-
- /* Look for a sibling of parent */
-
- parent = op->common.parent;
-
- while (parent) {
- arg = acpi_ps_get_arg(parent, 0);
- while (arg && (arg != origin) && (arg != op)) {
- arg = arg->common.next;
- }
-
- if (arg == origin) {
-
- /* Reached parent of origin, end search */
-
- return (NULL);
- }
-
- if (parent->common.next) {
-
- /* Found sibling of parent */
-
- return (parent->common.next);
- }
-
- op = parent;
- parent = parent->common.parent;
- }
-
- return (next);
-}
-
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_get_child
- *
- * PARAMETERS: Op - Get the child of this Op
- *
- * RETURN: Child Op, Null if none is found.
- *
- * DESCRIPTION: Get op's children or NULL if none
- *
- ******************************************************************************/
-
-union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op)
-{
- union acpi_parse_object *child = NULL;
-
- ACPI_FUNCTION_ENTRY();
-
- switch (op->common.aml_opcode) {
- case AML_SCOPE_OP:
- case AML_ELSE_OP:
- case AML_DEVICE_OP:
- case AML_THERMAL_ZONE_OP:
- case AML_INT_METHODCALL_OP:
-
- child = acpi_ps_get_arg(op, 0);
- break;
-
- case AML_BUFFER_OP:
- case AML_PACKAGE_OP:
- case AML_METHOD_OP:
- case AML_IF_OP:
- case AML_WHILE_OP:
- case AML_FIELD_OP:
-
- child = acpi_ps_get_arg(op, 1);
- break;
-
- case AML_POWER_RES_OP:
- case AML_INDEX_FIELD_OP:
-
- child = acpi_ps_get_arg(op, 2);
- break;
-
- case AML_PROCESSOR_OP:
- case AML_BANK_FIELD_OP:
-
- child = acpi_ps_get_arg(op, 3);
- break;
-
- default:
- /* All others have no children */
- break;
- }
-
- return (child);
-}
-#endif
-#endif /* ACPI_FUTURE_USAGE */
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psutils - Parser miscellaneous utilities (Parser only)
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psutils")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_create_scope_op
- *
- * PARAMETERS: None
- *
- * RETURN: A new Scope object, null on failure
- *
- * DESCRIPTION: Create a Scope and associated namepath op with the root name
- *
- ******************************************************************************/
-union acpi_parse_object *acpi_ps_create_scope_op(void)
-{
- union acpi_parse_object *scope_op;
-
- scope_op = acpi_ps_alloc_op(AML_SCOPE_OP);
- if (!scope_op) {
- return (NULL);
- }
-
- scope_op->named.name = ACPI_ROOT_NAME;
- return (scope_op);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_init_op
- *
- * PARAMETERS: Op - A newly allocated Op object
- * Opcode - Opcode to store in the Op
- *
- * RETURN: None
- *
- * DESCRIPTION: Initialize a parse (Op) object
- *
- ******************************************************************************/
-
-void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode)
-{
- ACPI_FUNCTION_ENTRY();
-
- op->common.descriptor_type = ACPI_DESC_TYPE_PARSER;
- op->common.aml_opcode = opcode;
-
- ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name,
- (acpi_ps_get_opcode_info
- (opcode))->name,
- sizeof(op->common.aml_op_name)));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_alloc_op
- *
- * PARAMETERS: Opcode - Opcode that will be stored in the new Op
- *
- * RETURN: Pointer to the new Op, null on failure
- *
- * DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on
- * opcode. A cache of opcodes is available for the pure
- * GENERIC_OP, since this is by far the most commonly used.
- *
- ******************************************************************************/
-
-union acpi_parse_object *acpi_ps_alloc_op(u16 opcode)
-{
- union acpi_parse_object *op;
- const struct acpi_opcode_info *op_info;
- u8 flags = ACPI_PARSEOP_GENERIC;
-
- ACPI_FUNCTION_ENTRY();
-
- op_info = acpi_ps_get_opcode_info(opcode);
-
- /* Determine type of parse_op required */
-
- if (op_info->flags & AML_DEFER) {
- flags = ACPI_PARSEOP_DEFERRED;
- } else if (op_info->flags & AML_NAMED) {
- flags = ACPI_PARSEOP_NAMED;
- } else if (opcode == AML_INT_BYTELIST_OP) {
- flags = ACPI_PARSEOP_BYTELIST;
- }
-
- /* Allocate the minimum required size object */
-
- if (flags == ACPI_PARSEOP_GENERIC) {
-
- /* The generic op (default) is by far the most common (16 to 1) */
-
- op = acpi_os_acquire_object(acpi_gbl_ps_node_cache);
- } else {
- /* Extended parseop */
-
- op = acpi_os_acquire_object(acpi_gbl_ps_node_ext_cache);
- }
-
- /* Initialize the Op */
-
- if (op) {
- acpi_ps_init_op(op, opcode);
- op->common.flags = flags;
- }
-
- return (op);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_free_op
- *
- * PARAMETERS: Op - Op to be freed
- *
- * RETURN: None.
- *
- * DESCRIPTION: Free an Op object. Either put it on the GENERIC_OP cache list
- * or actually free it.
- *
- ******************************************************************************/
-
-void acpi_ps_free_op(union acpi_parse_object *op)
-{
- ACPI_FUNCTION_NAME(ps_free_op);
-
- if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n",
- op));
- }
-
- if (op->common.flags & ACPI_PARSEOP_GENERIC) {
- (void)acpi_os_release_object(acpi_gbl_ps_node_cache, op);
- } else {
- (void)acpi_os_release_object(acpi_gbl_ps_node_ext_cache, op);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: Utility functions
- *
- * DESCRIPTION: Low level character and object functions
- *
- ******************************************************************************/
-
-/*
- * Is "c" a namestring lead character?
- */
-u8 acpi_ps_is_leading_char(u32 c)
-{
- return ((u8) (c == '_' || (c >= 'A' && c <= 'Z')));
-}
-
-/*
- * Is "c" a namestring prefix character?
- */
-u8 acpi_ps_is_prefix_char(u32 c)
-{
- return ((u8) (c == '\\' || c == '^'));
-}
-
-/*
- * Get op's name (4-byte name segment) or 0 if unnamed
- */
-#ifdef ACPI_FUTURE_USAGE
-u32 acpi_ps_get_name(union acpi_parse_object * op)
-{
-
- /* The "generic" object has no name associated with it */
-
- if (op->common.flags & ACPI_PARSEOP_GENERIC) {
- return (0);
- }
-
- /* Only the "Extended" parse objects have a name */
-
- return (op->named.name);
-}
-#endif /* ACPI_FUTURE_USAGE */
-
-/*
- * Set op's name
- */
-void acpi_ps_set_name(union acpi_parse_object *op, u32 name)
-{
-
- /* The "generic" object has no name associated with it */
-
- if (op->common.flags & ACPI_PARSEOP_GENERIC) {
- return;
- }
-
- op->named.name = name;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: pswalk - Parser routines to walk parsed op tree(s)
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("pswalk")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_delete_parse_tree
- *
- * PARAMETERS: subtree_root - Root of tree (or subtree) to delete
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete a portion of or an entire parse tree.
- *
- ******************************************************************************/
-void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root)
-{
- union acpi_parse_object *op = subtree_root;
- union acpi_parse_object *next = NULL;
- union acpi_parse_object *parent = NULL;
-
- ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root);
-
- /* Visit all nodes in the subtree */
-
- while (op) {
-
- /* Check if we are not ascending */
-
- if (op != parent) {
-
- /* Look for an argument or child of the current op */
-
- next = acpi_ps_get_arg(op, 0);
- if (next) {
-
- /* Still going downward in tree (Op is not completed yet) */
-
- op = next;
- continue;
- }
- }
-
- /* No more children, this Op is complete. */
-
- next = op->common.next;
- parent = op->common.parent;
-
- acpi_ps_free_op(op);
-
- /* If we are back to the starting point, the walk is complete. */
-
- if (op == subtree_root) {
- return_VOID;
- }
- if (next) {
- op = next;
- } else {
- op = parent;
- }
- }
-
- return_VOID;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: psxface - Parser external interfaces
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acparser.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
-
-#define _COMPONENT ACPI_PARSER
-ACPI_MODULE_NAME("psxface")
-
-/* Local Prototypes */
-static void acpi_ps_start_trace(struct acpi_evaluate_info *info);
-
-static void acpi_ps_stop_trace(struct acpi_evaluate_info *info);
-
-static void
-acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_debug_trace
- *
- * PARAMETERS: method_name - Valid ACPI name string
- * debug_level - Optional level mask. 0 to use default
- * debug_layer - Optional layer mask. 0 to use default
- * Flags - bit 1: one shot(1) or persistent(0)
- *
- * RETURN: Status
- *
- * DESCRIPTION: External interface to enable debug tracing during control
- * method execution
- *
- ******************************************************************************/
-
-acpi_status
-acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags)
-{
- acpi_status status;
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* TBDs: Validate name, allow full path or just nameseg */
-
- acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name);
- acpi_gbl_trace_flags = flags;
-
- if (debug_level) {
- acpi_gbl_trace_dbg_level = debug_level;
- }
- if (debug_layer) {
- acpi_gbl_trace_dbg_layer = debug_layer;
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_start_trace
- *
- * PARAMETERS: Info - Method info struct
- *
- * RETURN: None
- *
- * DESCRIPTION: Start control method execution trace
- *
- ******************************************************************************/
-
-static void acpi_ps_start_trace(struct acpi_evaluate_info *info)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return;
- }
-
- if ((!acpi_gbl_trace_method_name) ||
- (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) {
- goto exit;
- }
-
- acpi_gbl_original_dbg_level = acpi_dbg_level;
- acpi_gbl_original_dbg_layer = acpi_dbg_layer;
-
- acpi_dbg_level = 0x00FFFFFF;
- acpi_dbg_layer = ACPI_UINT32_MAX;
-
- if (acpi_gbl_trace_dbg_level) {
- acpi_dbg_level = acpi_gbl_trace_dbg_level;
- }
- if (acpi_gbl_trace_dbg_layer) {
- acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
- }
-
- exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_stop_trace
- *
- * PARAMETERS: Info - Method info struct
- *
- * RETURN: None
- *
- * DESCRIPTION: Stop control method execution trace
- *
- ******************************************************************************/
-
-static void acpi_ps_stop_trace(struct acpi_evaluate_info *info)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return;
- }
-
- if ((!acpi_gbl_trace_method_name) ||
- (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) {
- goto exit;
- }
-
- /* Disable further tracing if type is one-shot */
-
- if (acpi_gbl_trace_flags & 1) {
- acpi_gbl_trace_method_name = 0;
- acpi_gbl_trace_dbg_level = 0;
- acpi_gbl_trace_dbg_layer = 0;
- }
-
- acpi_dbg_level = acpi_gbl_original_dbg_level;
- acpi_dbg_layer = acpi_gbl_original_dbg_layer;
-
- exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_execute_method
- *
- * PARAMETERS: Info - Method info block, contains:
- * Node - Method Node to execute
- * obj_desc - Method object
- * Parameters - List of parameters to pass to the method,
- * terminated by NULL. Params itself may be
- * NULL if no parameters are being passed.
- * return_object - Where to put method's return value (if
- * any). If NULL, no value is returned.
- * parameter_type - Type of Parameter list
- * return_object - Where to put method's return value (if
- * any). If NULL, no value is returned.
- * pass_number - Parse or execute pass
- *
- * RETURN: Status
- *
- * DESCRIPTION: Execute a control method
- *
- ******************************************************************************/
-
-acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
-{
- acpi_status status;
- union acpi_parse_object *op;
- struct acpi_walk_state *walk_state;
-
- ACPI_FUNCTION_TRACE(ps_execute_method);
-
- /* Validate the Info and method Node */
-
- if (!info || !info->resolved_node) {
- return_ACPI_STATUS(AE_NULL_ENTRY);
- }
-
- /* Init for new method, wait on concurrency semaphore */
-
- status =
- acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc,
- NULL);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * The caller "owns" the parameters, so give each one an extra reference
- */
- acpi_ps_update_parameter_list(info, REF_INCREMENT);
-
- /* Begin tracing if requested */
-
- acpi_ps_start_trace(info);
-
- /*
- * Execute the method. Performs parse simultaneously
- */
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
- "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n",
- info->resolved_node->name.ascii, info->resolved_node,
- info->obj_desc));
-
- /* Create and init a Root Node */
-
- op = acpi_ps_create_scope_op();
- if (!op) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Create and initialize a new walk state */
-
- info->pass_number = ACPI_IMODE_EXECUTE;
- walk_state =
- acpi_ds_create_walk_state(info->obj_desc->method.owner_id, NULL,
- NULL, NULL);
- if (!walk_state) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node,
- info->obj_desc->method.aml_start,
- info->obj_desc->method.aml_length, info,
- info->pass_number);
- if (ACPI_FAILURE(status)) {
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
- /* Invoke an internal method if necessary */
-
- if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) {
- status = info->obj_desc->method.implementation(walk_state);
- info->return_object = walk_state->return_desc;
-
- /* Cleanup states */
-
- acpi_ds_scope_stack_clear(walk_state);
- acpi_ps_cleanup_scope(&walk_state->parser_state);
- acpi_ds_terminate_control_method(walk_state->method_desc,
- walk_state);
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
- /*
- * Start method evaluation with an implicit return of zero.
- * This is done for Windows compatibility.
- */
- if (acpi_gbl_enable_interpreter_slack) {
- walk_state->implicit_return_obj =
- acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!walk_state->implicit_return_obj) {
- status = AE_NO_MEMORY;
- acpi_ds_delete_walk_state(walk_state);
- goto cleanup;
- }
-
- walk_state->implicit_return_obj->integer.value = 0;
- }
-
- /* Parse the AML */
-
- status = acpi_ps_parse_aml(walk_state);
-
- /* walk_state was deleted by parse_aml */
-
- cleanup:
- acpi_ps_delete_parse_tree(op);
-
- /* End optional tracing */
-
- acpi_ps_stop_trace(info);
-
- /* Take away the extra reference that we gave the parameters above */
-
- acpi_ps_update_parameter_list(info, REF_DECREMENT);
-
- /* Exit now if error above */
-
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * If the method has returned an object, signal this to the caller with
- * a control exception code
- */
- if (info->return_object) {
- ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n",
- info->return_object));
- ACPI_DUMP_STACK_ENTRY(info->return_object);
-
- status = AE_CTRL_RETURN_VALUE;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ps_update_parameter_list
- *
- * PARAMETERS: Info - See struct acpi_evaluate_info
- * (Used: parameter_type and Parameters)
- * Action - Add or Remove reference
- *
- * RETURN: Status
- *
- * DESCRIPTION: Update reference count on all method parameter objects
- *
- ******************************************************************************/
-
-static void
-acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action)
-{
- u32 i;
-
- if (info->parameters) {
-
- /* Update reference count for each parameter */
-
- for (i = 0; info->parameters[i]; i++) {
-
- /* Ignore errors, just do them all */
-
- (void)acpi_ut_update_object_reference(info->
- parameters[i],
- action);
- }
- }
-}
--- /dev/null
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/suspend.h>
+#include <linux/bcd.h>
+#include <asm/uaccess.h>
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+#ifdef CONFIG_X86
+#include <linux/mc146818rtc.h>
+#endif
+
+#include "sleep.h"
+
+#define _COMPONENT ACPI_SYSTEM_COMPONENT
+
+/*
+ * this file provides support for:
+ * /proc/acpi/sleep
+ * /proc/acpi/alarm
+ * /proc/acpi/wakeup
+ */
+
+ACPI_MODULE_NAME("sleep")
+#ifdef CONFIG_ACPI_PROCFS
+static int acpi_system_sleep_seq_show(struct seq_file *seq, void *offset)
+{
+ int i;
+
+ for (i = 0; i <= ACPI_STATE_S5; i++) {
+ if (sleep_states[i]) {
+ seq_printf(seq, "S%d ", i);
+ }
+ }
+
+ seq_puts(seq, "\n");
+
+ return 0;
+}
+
+static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_system_sleep_seq_show, PDE(inode)->data);
+}
+
+static ssize_t
+acpi_system_write_sleep(struct file *file,
+ const char __user * buffer, size_t count, loff_t * ppos)
+{
+ char str[12];
+ u32 state = 0;
+ int error = 0;
+
+ if (count > sizeof(str) - 1)
+ goto Done;
+ memset(str, 0, sizeof(str));
+ if (copy_from_user(str, buffer, count))
+ return -EFAULT;
+
+ /* Check for S4 bios request */
+ if (!strcmp(str, "4b")) {
+ error = acpi_suspend(4);
+ goto Done;
+ }
+ state = simple_strtoul(str, NULL, 0);
+#ifdef CONFIG_HIBERNATION
+ if (state == 4) {
+ error = hibernate();
+ goto Done;
+ }
+#endif
+ error = acpi_suspend(state);
+ Done:
+ return error ? error : count;
+}
+#endif /* CONFIG_ACPI_PROCFS */
+
+#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86)
+/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */
+#else
+#define HAVE_ACPI_LEGACY_ALARM
+#endif
+
+#ifdef HAVE_ACPI_LEGACY_ALARM
+
+static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
+{
+ u32 sec, min, hr;
+ u32 day, mo, yr, cent = 0;
+ unsigned char rtc_control = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rtc_lock, flags);
+
+ sec = CMOS_READ(RTC_SECONDS_ALARM);
+ min = CMOS_READ(RTC_MINUTES_ALARM);
+ hr = CMOS_READ(RTC_HOURS_ALARM);
+ rtc_control = CMOS_READ(RTC_CONTROL);
+
+ /* If we ever get an FACP with proper values... */
+ if (acpi_gbl_FADT.day_alarm)
+ /* ACPI spec: only low 6 its should be cared */
+ day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F;
+ else
+ day = CMOS_READ(RTC_DAY_OF_MONTH);
+ if (acpi_gbl_FADT.month_alarm)
+ mo = CMOS_READ(acpi_gbl_FADT.month_alarm);
+ else
+ mo = CMOS_READ(RTC_MONTH);
+ if (acpi_gbl_FADT.century)
+ cent = CMOS_READ(acpi_gbl_FADT.century);
+
+ yr = CMOS_READ(RTC_YEAR);
+
+ spin_unlock_irqrestore(&rtc_lock, flags);
+
+ if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+ sec = bcd2bin(sec);
+ min = bcd2bin(min);
+ hr = bcd2bin(hr);
+ day = bcd2bin(day);
+ mo = bcd2bin(mo);
+ yr = bcd2bin(yr);
+ cent = bcd2bin(cent);
+ }
+
+ /* we're trusting the FADT (see above) */
+ if (!acpi_gbl_FADT.century)
+ /* If we're not trusting the FADT, we should at least make it
+ * right for _this_ century... ehm, what is _this_ century?
+ *
+ * TBD:
+ * ASAP: find piece of code in the kernel, e.g. star tracker driver,
+ * which we can trust to determine the century correctly. Atom
+ * watch driver would be nice, too...
+ *
+ * if that has not happened, change for first release in 2050:
+ * if (yr<50)
+ * yr += 2100;
+ * else
+ * yr += 2000; // current line of code
+ *
+ * if that has not happened either, please do on 2099/12/31:23:59:59
+ * s/2000/2100
+ *
+ */
+ yr += 2000;
+ else
+ yr += cent * 100;
+
+ seq_printf(seq, "%4.4u-", yr);
+ (mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
+ (day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
+ (hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr);
+ (min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min);
+ (sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec);
+
+ return 0;
+}
+
+static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data);
+}
+
+static int get_date_field(char **p, u32 * value)
+{
+ char *next = NULL;
+ char *string_end = NULL;
+ int result = -EINVAL;
+
+ /*
+ * Try to find delimeter, only to insert null. The end of the
+ * string won't have one, but is still valid.
+ */
+ if (*p == NULL)
+ return result;
+
+ next = strpbrk(*p, "- :");
+ if (next)
+ *next++ = '\0';
+
+ *value = simple_strtoul(*p, &string_end, 10);
+
+ /* Signal success if we got a good digit */
+ if (string_end != *p)
+ result = 0;
+
+ if (next)
+ *p = next;
+ else
+ *p = NULL;
+
+ return result;
+}
+
+/* Read a possibly BCD register, always return binary */
+static u32 cmos_bcd_read(int offset, int rtc_control)
+{
+ u32 val = CMOS_READ(offset);
+ if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+ val = bcd2bin(val);
+ return val;
+}
+
+/* Write binary value into possibly BCD register */
+static void cmos_bcd_write(u32 val, int offset, int rtc_control)
+{
+ if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+ val = bin2bcd(val);
+ CMOS_WRITE(val, offset);
+}
+
+static ssize_t
+acpi_system_write_alarm(struct file *file,
+ const char __user * buffer, size_t count, loff_t * ppos)
+{
+ int result = 0;
+ char alarm_string[30] = { '\0' };
+ char *p = alarm_string;
+ u32 sec, min, hr, day, mo, yr;
+ int adjust = 0;
+ unsigned char rtc_control = 0;
+
+ if (count > sizeof(alarm_string) - 1)
+ return -EINVAL;
+
+ if (copy_from_user(alarm_string, buffer, count))
+ return -EFAULT;
+
+ alarm_string[count] = '\0';
+
+ /* check for time adjustment */
+ if (alarm_string[0] == '+') {
+ p++;
+ adjust = 1;
+ }
+
+ if ((result = get_date_field(&p, &yr)))
+ goto end;
+ if ((result = get_date_field(&p, &mo)))
+ goto end;
+ if ((result = get_date_field(&p, &day)))
+ goto end;
+ if ((result = get_date_field(&p, &hr)))
+ goto end;
+ if ((result = get_date_field(&p, &min)))
+ goto end;
+ if ((result = get_date_field(&p, &sec)))
+ goto end;
+
+ spin_lock_irq(&rtc_lock);
+
+ rtc_control = CMOS_READ(RTC_CONTROL);
+
+ if (adjust) {
+ yr += cmos_bcd_read(RTC_YEAR, rtc_control);
+ mo += cmos_bcd_read(RTC_MONTH, rtc_control);
+ day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
+ hr += cmos_bcd_read(RTC_HOURS, rtc_control);
+ min += cmos_bcd_read(RTC_MINUTES, rtc_control);
+ sec += cmos_bcd_read(RTC_SECONDS, rtc_control);
+ }
+
+ spin_unlock_irq(&rtc_lock);
+
+ if (sec > 59) {
+ min += sec/60;
+ sec = sec%60;
+ }
+ if (min > 59) {
+ hr += min/60;
+ min = min%60;
+ }
+ if (hr > 23) {
+ day += hr/24;
+ hr = hr%24;
+ }
+ if (day > 31) {
+ mo += day/32;
+ day = day%32;
+ }
+ if (mo > 12) {
+ yr += mo/13;
+ mo = mo%13;
+ }
+
+ spin_lock_irq(&rtc_lock);
+ /*
+ * Disable alarm interrupt before setting alarm timer or else
+ * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs
+ */
+ rtc_control &= ~RTC_AIE;
+ CMOS_WRITE(rtc_control, RTC_CONTROL);
+ CMOS_READ(RTC_INTR_FLAGS);
+
+ /* write the fields the rtc knows about */
+ cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control);
+ cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control);
+ cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control);
+
+ /*
+ * If the system supports an enhanced alarm it will have non-zero
+ * offsets into the CMOS RAM here -- which for some reason are pointing
+ * to the RTC area of memory.
+ */
+ if (acpi_gbl_FADT.day_alarm)
+ cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control);
+ if (acpi_gbl_FADT.month_alarm)
+ cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control);
+ if (acpi_gbl_FADT.century) {
+ if (adjust)
+ yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100;
+ cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control);
+ }
+ /* enable the rtc alarm interrupt */
+ rtc_control |= RTC_AIE;
+ CMOS_WRITE(rtc_control, RTC_CONTROL);
+ CMOS_READ(RTC_INTR_FLAGS);
+
+ spin_unlock_irq(&rtc_lock);
+
+ acpi_clear_event(ACPI_EVENT_RTC);
+ acpi_enable_event(ACPI_EVENT_RTC, 0);
+
+ *ppos += count;
+
+ result = 0;
+ end:
+ return result ? result : count;
+}
+#endif /* HAVE_ACPI_LEGACY_ALARM */
+
+extern struct list_head acpi_wakeup_device_list;
+extern spinlock_t acpi_device_lock;
+
+static int
+acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
+{
+ struct list_head *node, *next;
+
+ seq_printf(seq, "Device\tS-state\t Status Sysfs node\n");
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
+ struct device *ldev;
+
+ if (!dev->wakeup.flags.valid)
+ continue;
+ spin_unlock(&acpi_device_lock);
+
+ ldev = acpi_get_physical_device(dev->handle);
+ seq_printf(seq, "%s\t S%d\t%c%-8s ",
+ dev->pnp.bus_id,
+ (u32) dev->wakeup.sleep_state,
+ dev->wakeup.flags.run_wake ? '*' : ' ',
+ dev->wakeup.state.enabled ? "enabled" : "disabled");
+ if (ldev)
+ seq_printf(seq, "%s:%s",
+ ldev->bus ? ldev->bus->name : "no-bus",
+ dev_name(ldev));
+ seq_printf(seq, "\n");
+ put_device(ldev);
+
+ spin_lock(&acpi_device_lock);
+ }
+ spin_unlock(&acpi_device_lock);
+ return 0;
+}
+
+static void physical_device_enable_wakeup(struct acpi_device *adev)
+{
+ struct device *dev = acpi_get_physical_device(adev->handle);
+
+ if (dev && device_can_wakeup(dev))
+ device_set_wakeup_enable(dev, adev->wakeup.state.enabled);
+}
+
+static ssize_t
+acpi_system_write_wakeup_device(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
+{
+ struct list_head *node, *next;
+ char strbuf[5];
+ char str[5] = "";
+ int len = count;
+ struct acpi_device *found_dev = NULL;
+
+ if (len > 4)
+ len = 4;
+
+ if (copy_from_user(strbuf, buffer, len))
+ return -EFAULT;
+ strbuf[len] = '\0';
+ sscanf(strbuf, "%s", str);
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
+ if (!dev->wakeup.flags.valid)
+ continue;
+
+ if (!strncmp(dev->pnp.bus_id, str, 4)) {
+ dev->wakeup.state.enabled =
+ dev->wakeup.state.enabled ? 0 : 1;
+ found_dev = dev;
+ break;
+ }
+ }
+ if (found_dev) {
+ physical_device_enable_wakeup(found_dev);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev = container_of(node,
+ struct
+ acpi_device,
+ wakeup_list);
+
+ if ((dev != found_dev) &&
+ (dev->wakeup.gpe_number ==
+ found_dev->wakeup.gpe_number)
+ && (dev->wakeup.gpe_device ==
+ found_dev->wakeup.gpe_device)) {
+ printk(KERN_WARNING
+ "ACPI: '%s' and '%s' have the same GPE, "
+ "can't disable/enable one seperately\n",
+ dev->pnp.bus_id, found_dev->pnp.bus_id);
+ dev->wakeup.state.enabled =
+ found_dev->wakeup.state.enabled;
+ physical_device_enable_wakeup(dev);
+ }
+ }
+ }
+ spin_unlock(&acpi_device_lock);
+ return count;
+}
+
+static int
+acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_system_wakeup_device_seq_show,
+ PDE(inode)->data);
+}
+
+static const struct file_operations acpi_system_wakeup_device_fops = {
+ .owner = THIS_MODULE,
+ .open = acpi_system_wakeup_device_open_fs,
+ .read = seq_read,
+ .write = acpi_system_write_wakeup_device,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+#ifdef CONFIG_ACPI_PROCFS
+static const struct file_operations acpi_system_sleep_fops = {
+ .owner = THIS_MODULE,
+ .open = acpi_system_sleep_open_fs,
+ .read = seq_read,
+ .write = acpi_system_write_sleep,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#endif /* CONFIG_ACPI_PROCFS */
+
+#ifdef HAVE_ACPI_LEGACY_ALARM
+static const struct file_operations acpi_system_alarm_fops = {
+ .owner = THIS_MODULE,
+ .open = acpi_system_alarm_open_fs,
+ .read = seq_read,
+ .write = acpi_system_write_alarm,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static u32 rtc_handler(void *context)
+{
+ acpi_clear_event(ACPI_EVENT_RTC);
+ acpi_disable_event(ACPI_EVENT_RTC, 0);
+
+ return ACPI_INTERRUPT_HANDLED;
+}
+#endif /* HAVE_ACPI_LEGACY_ALARM */
+
+static int __init acpi_sleep_proc_init(void)
+{
+ if (acpi_disabled)
+ return 0;
+
+#ifdef CONFIG_ACPI_PROCFS
+ /* 'sleep' [R/W] */
+ proc_create("sleep", S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_root_dir, &acpi_system_sleep_fops);
+#endif /* CONFIG_ACPI_PROCFS */
+
+#ifdef HAVE_ACPI_LEGACY_ALARM
+ /* 'alarm' [R/W] */
+ proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_root_dir, &acpi_system_alarm_fops);
+
+ acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
+ /*
+ * Disable the RTC event after installing RTC handler.
+ * Only when RTC alarm is set will it be enabled.
+ */
+ acpi_clear_event(ACPI_EVENT_RTC);
+ acpi_disable_event(ACPI_EVENT_RTC, 0);
+#endif /* HAVE_ACPI_LEGACY_ALARM */
+
+ /* 'wakeup device' [R/W] */
+ proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_root_dir, &acpi_system_wakeup_device_fops);
+
+ return 0;
+}
+
+late_initcall(acpi_sleep_proc_init);
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := rsaddr.o rscreate.o rsinfo.o rsio.o rslist.o rsmisc.o rsxface.o \
- rscalc.o rsirq.o rsmemory.o rsutils.o
-
-obj-$(ACPI_FUTURE_USAGE) += rsdump.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsaddr - Address resource descriptors (16/32/64)
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsaddr")
-
-/*******************************************************************************
- *
- * acpi_rs_convert_address16 - All WORD (16-bit) address resources
- *
- ******************************************************************************/
-struct acpi_rsconvert_info acpi_rs_convert_address16[5] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16,
- ACPI_RS_SIZE(struct acpi_resource_address16),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16,
- sizeof(struct aml_resource_address16),
- 0},
-
- /* Resource Type, General Flags, and Type-Specific Flags */
-
- {ACPI_RSC_ADDRESS, 0, 0, 0},
-
- /*
- * These fields are contiguous in both the source and destination:
- * Address Granularity
- * Address Range Minimum
- * Address Range Maximum
- * Address Translation Offset
- * Address Length
- */
- {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.granularity),
- AML_OFFSET(address16.granularity),
- 5},
-
- /* Optional resource_source (Index and String) */
-
- {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source),
- 0,
- sizeof(struct aml_resource_address16)}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_address32 - All DWORD (32-bit) address resources
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_address32[5] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32,
- ACPI_RS_SIZE(struct acpi_resource_address32),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32,
- sizeof(struct aml_resource_address32),
- 0},
-
- /* Resource Type, General Flags, and Type-Specific Flags */
-
- {ACPI_RSC_ADDRESS, 0, 0, 0},
-
- /*
- * These fields are contiguous in both the source and destination:
- * Address Granularity
- * Address Range Minimum
- * Address Range Maximum
- * Address Translation Offset
- * Address Length
- */
- {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.granularity),
- AML_OFFSET(address32.granularity),
- 5},
-
- /* Optional resource_source (Index and String) */
-
- {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source),
- 0,
- sizeof(struct aml_resource_address32)}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_address64 - All QWORD (64-bit) address resources
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_address64[5] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64,
- ACPI_RS_SIZE(struct acpi_resource_address64),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64,
- sizeof(struct aml_resource_address64),
- 0},
-
- /* Resource Type, General Flags, and Type-Specific Flags */
-
- {ACPI_RSC_ADDRESS, 0, 0, 0},
-
- /*
- * These fields are contiguous in both the source and destination:
- * Address Granularity
- * Address Range Minimum
- * Address Range Maximum
- * Address Translation Offset
- * Address Length
- */
- {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.granularity),
- AML_OFFSET(address64.granularity),
- 5},
-
- /* Optional resource_source (Index and String) */
-
- {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source),
- 0,
- sizeof(struct aml_resource_address64)}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64,
- ACPI_RS_SIZE(struct acpi_resource_extended_address64),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64,
- sizeof(struct aml_resource_extended_address64),
- 0},
-
- /* Resource Type, General Flags, and Type-Specific Flags */
-
- {ACPI_RSC_ADDRESS, 0, 0, 0},
-
- /* Revision ID */
-
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_iD),
- AML_OFFSET(ext_address64.revision_iD),
- 1},
- /*
- * These fields are contiguous in both the source and destination:
- * Address Granularity
- * Address Range Minimum
- * Address Range Maximum
- * Address Translation Offset
- * Address Length
- * Type-Specific Attribute
- */
- {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.ext_address64.granularity),
- AML_OFFSET(ext_address64.granularity),
- 6}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_general_flags - Flags common to all address descriptors
- *
- ******************************************************************************/
-
-static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = {
- {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)},
-
- /* Resource Type (Memory, Io, bus_number, etc.) */
-
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type),
- AML_OFFSET(address.resource_type),
- 1},
-
- /* General Flags - Consume, Decode, min_fixed, max_fixed */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer),
- AML_OFFSET(address.flags),
- 0},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode),
- AML_OFFSET(address.flags),
- 1},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed),
- AML_OFFSET(address.flags),
- 2},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed),
- AML_OFFSET(address.flags),
- 3}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors
- *
- ******************************************************************************/
-
-static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = {
- {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)},
-
- /* Memory-specific flags */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect),
- AML_OFFSET(address.specific_flags),
- 0},
-
- {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching),
- AML_OFFSET(address.specific_flags),
- 1},
-
- {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type),
- AML_OFFSET(address.specific_flags),
- 3},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation),
- AML_OFFSET(address.specific_flags),
- 5}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_io_flags - Flags common to I/O address descriptors
- *
- ******************************************************************************/
-
-static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = {
- {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)},
-
- /* I/O-specific flags */
-
- {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type),
- AML_OFFSET(address.specific_flags),
- 0},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation),
- AML_OFFSET(address.specific_flags),
- 4},
-
- {ACPI_RSC_1BITFLAG,
- ACPI_RS_OFFSET(data.address.info.io.translation_type),
- AML_OFFSET(address.specific_flags),
- 5}
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_address_common
- *
- * PARAMETERS: Resource - Pointer to the internal resource struct
- * Aml - Pointer to the AML resource descriptor
- *
- * RETURN: TRUE if the resource_type field is OK, FALSE otherwise
- *
- * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor
- * to an internal resource descriptor
- *
- ******************************************************************************/
-
-u8
-acpi_rs_get_address_common(struct acpi_resource *resource,
- union aml_resource *aml)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Validate the Resource Type */
-
- if ((aml->address.resource_type > 2)
- && (aml->address.resource_type < 0xC0)) {
- return (FALSE);
- }
-
- /* Get the Resource Type and General Flags */
-
- (void)acpi_rs_convert_aml_to_resource(resource, aml,
- acpi_rs_convert_general_flags);
-
- /* Get the Type-Specific Flags (Memory and I/O descriptors only) */
-
- if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
- (void)acpi_rs_convert_aml_to_resource(resource, aml,
- acpi_rs_convert_mem_flags);
- } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
- (void)acpi_rs_convert_aml_to_resource(resource, aml,
- acpi_rs_convert_io_flags);
- } else {
- /* Generic resource type, just grab the type_specific byte */
-
- resource->data.address.info.type_specific =
- aml->address.specific_flags;
- }
-
- return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_set_address_common
- *
- * PARAMETERS: Aml - Pointer to the AML resource descriptor
- * Resource - Pointer to the internal resource struct
- *
- * RETURN: None
- *
- * DESCRIPTION: Convert common flag fields from a resource descriptor to an
- * AML descriptor
- *
- ******************************************************************************/
-
-void
-acpi_rs_set_address_common(union aml_resource *aml,
- struct acpi_resource *resource)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Set the Resource Type and General Flags */
-
- (void)acpi_rs_convert_resource_to_aml(resource, aml,
- acpi_rs_convert_general_flags);
-
- /* Set the Type-Specific Flags (Memory and I/O descriptors only) */
-
- if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) {
- (void)acpi_rs_convert_resource_to_aml(resource, aml,
- acpi_rs_convert_mem_flags);
- } else if (resource->data.address.resource_type == ACPI_IO_RANGE) {
- (void)acpi_rs_convert_resource_to_aml(resource, aml,
- acpi_rs_convert_io_flags);
- } else {
- /* Generic resource type, just copy the type_specific byte */
-
- aml->address.specific_flags =
- resource->data.address.info.type_specific;
- }
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rscalc - Calculate stream and list lengths
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rscalc")
-
-/* Local prototypes */
-static u8 acpi_rs_count_set_bits(u16 bit_field);
-
-static acpi_rs_length
-acpi_rs_struct_option_length(struct acpi_resource_source *resource_source);
-
-static u32
-acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_count_set_bits
- *
- * PARAMETERS: bit_field - Field in which to count bits
- *
- * RETURN: Number of bits set within the field
- *
- * DESCRIPTION: Count the number of bits set in a resource field. Used for
- * (Short descriptor) interrupt and DMA lists.
- *
- ******************************************************************************/
-
-static u8 acpi_rs_count_set_bits(u16 bit_field)
-{
- u8 bits_set;
-
- ACPI_FUNCTION_ENTRY();
-
- for (bits_set = 0; bit_field; bits_set++) {
-
- /* Zero the least significant bit that is set */
-
- bit_field &= (u16) (bit_field - 1);
- }
-
- return bits_set;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_struct_option_length
- *
- * PARAMETERS: resource_source - Pointer to optional descriptor field
- *
- * RETURN: Status
- *
- * DESCRIPTION: Common code to handle optional resource_source_index and
- * resource_source fields in some Large descriptors. Used during
- * list-to-stream conversion
- *
- ******************************************************************************/
-
-static acpi_rs_length
-acpi_rs_struct_option_length(struct acpi_resource_source *resource_source)
-{
- ACPI_FUNCTION_ENTRY();
-
- /*
- * If the resource_source string is valid, return the size of the string
- * (string_length includes the NULL terminator) plus the size of the
- * resource_source_index (1).
- */
- if (resource_source->string_ptr) {
- return ((acpi_rs_length) (resource_source->string_length + 1));
- }
-
- return (0);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_stream_option_length
- *
- * PARAMETERS: resource_length - Length from the resource header
- * minimum_total_length - Minimum length of this resource, before
- * any optional fields. Includes header size
- *
- * RETURN: Length of optional string (0 if no string present)
- *
- * DESCRIPTION: Common code to handle optional resource_source_index and
- * resource_source fields in some Large descriptors. Used during
- * stream-to-list conversion
- *
- ******************************************************************************/
-
-static u32
-acpi_rs_stream_option_length(u32 resource_length,
- u32 minimum_aml_resource_length)
-{
- u32 string_length = 0;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * The resource_source_index and resource_source are optional elements of some
- * Large-type resource descriptors.
- */
-
- /*
- * If the length of the actual resource descriptor is greater than the ACPI
- * spec-defined minimum length, it means that a resource_source_index exists
- * and is followed by a (required) null terminated string. The string length
- * (including the null terminator) is the resource length minus the minimum
- * length, minus one byte for the resource_source_index itself.
- */
- if (resource_length > minimum_aml_resource_length) {
-
- /* Compute the length of the optional string */
-
- string_length =
- resource_length - minimum_aml_resource_length - 1;
- }
-
- /*
- * Round the length up to a multiple of the native word in order to
- * guarantee that the entire resource descriptor is native word aligned
- */
- return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_aml_length
- *
- * PARAMETERS: Resource - Pointer to the resource linked list
- * size_needed - Where the required size is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Takes a linked list of internal resource descriptors and
- * calculates the size buffer needed to hold the corresponding
- * external resource byte stream.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
-{
- acpi_size aml_size_needed = 0;
- acpi_rs_length total_size;
-
- ACPI_FUNCTION_TRACE(rs_get_aml_length);
-
- /* Traverse entire list of internal resource descriptors */
-
- while (resource) {
-
- /* Validate the descriptor type */
-
- if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
- return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE);
- }
-
- /* Get the base size of the (external stream) resource descriptor */
-
- total_size = acpi_gbl_aml_resource_sizes[resource->type];
-
- /*
- * Augment the base size for descriptors with optional and/or
- * variable-length fields
- */
- switch (resource->type) {
- case ACPI_RESOURCE_TYPE_IRQ:
-
- /* Length can be 3 or 2 */
-
- if (resource->data.irq.descriptor_length == 2) {
- total_size--;
- }
- break;
-
- case ACPI_RESOURCE_TYPE_START_DEPENDENT:
-
- /* Length can be 1 or 0 */
-
- if (resource->data.irq.descriptor_length == 0) {
- total_size--;
- }
- break;
-
- case ACPI_RESOURCE_TYPE_VENDOR:
- /*
- * Vendor Defined Resource:
- * For a Vendor Specific resource, if the Length is between 1 and 7
- * it will be created as a Small Resource data type, otherwise it
- * is a Large Resource data type.
- */
- if (resource->data.vendor.byte_length > 7) {
-
- /* Base size of a Large resource descriptor */
-
- total_size =
- sizeof(struct aml_resource_large_header);
- }
-
- /* Add the size of the vendor-specific data */
-
- total_size = (acpi_rs_length)
- (total_size + resource->data.vendor.byte_length);
- break;
-
- case ACPI_RESOURCE_TYPE_END_TAG:
- /*
- * End Tag:
- * We are done -- return the accumulated total size.
- */
- *size_needed = aml_size_needed + total_size;
-
- /* Normal exit */
-
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_RESOURCE_TYPE_ADDRESS16:
- /*
- * 16-Bit Address Resource:
- * Add the size of the optional resource_source info
- */
- total_size = (acpi_rs_length)
- (total_size +
- acpi_rs_struct_option_length(&resource->data.
- address16.
- resource_source));
- break;
-
- case ACPI_RESOURCE_TYPE_ADDRESS32:
- /*
- * 32-Bit Address Resource:
- * Add the size of the optional resource_source info
- */
- total_size = (acpi_rs_length)
- (total_size +
- acpi_rs_struct_option_length(&resource->data.
- address32.
- resource_source));
- break;
-
- case ACPI_RESOURCE_TYPE_ADDRESS64:
- /*
- * 64-Bit Address Resource:
- * Add the size of the optional resource_source info
- */
- total_size = (acpi_rs_length)
- (total_size +
- acpi_rs_struct_option_length(&resource->data.
- address64.
- resource_source));
- break;
-
- case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
- /*
- * Extended IRQ Resource:
- * Add the size of each additional optional interrupt beyond the
- * required 1 (4 bytes for each u32 interrupt number)
- */
- total_size = (acpi_rs_length)
- (total_size +
- ((resource->data.extended_irq.interrupt_count -
- 1) * 4) +
- /* Add the size of the optional resource_source info */
- acpi_rs_struct_option_length(&resource->data.
- extended_irq.
- resource_source));
- break;
-
- default:
- break;
- }
-
- /* Update the total */
-
- aml_size_needed += total_size;
-
- /* Point to the next object */
-
- resource =
- ACPI_ADD_PTR(struct acpi_resource, resource,
- resource->length);
- }
-
- /* Did not find an end_tag resource descriptor */
-
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_list_length
- *
- * PARAMETERS: aml_buffer - Pointer to the resource byte stream
- * aml_buffer_length - Size of aml_buffer
- * size_needed - Where the size needed is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Takes an external resource byte stream and calculates the size
- * buffer needed to hold the corresponding internal resource
- * descriptor linked list.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_get_list_length(u8 * aml_buffer,
- u32 aml_buffer_length, acpi_size * size_needed)
-{
- acpi_status status;
- u8 *end_aml;
- u8 *buffer;
- u32 buffer_size;
- u16 temp16;
- u16 resource_length;
- u32 extra_struct_bytes;
- u8 resource_index;
- u8 minimum_aml_resource_length;
-
- ACPI_FUNCTION_TRACE(rs_get_list_length);
-
- *size_needed = 0;
- end_aml = aml_buffer + aml_buffer_length;
-
- /* Walk the list of AML resource descriptors */
-
- while (aml_buffer < end_aml) {
-
- /* Validate the Resource Type and Resource Length */
-
- status = acpi_ut_validate_resource(aml_buffer, &resource_index);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the resource length and base (minimum) AML size */
-
- resource_length = acpi_ut_get_resource_length(aml_buffer);
- minimum_aml_resource_length =
- acpi_gbl_resource_aml_sizes[resource_index];
-
- /*
- * Augment the size for descriptors with optional
- * and/or variable length fields
- */
- extra_struct_bytes = 0;
- buffer =
- aml_buffer + acpi_ut_get_resource_header_length(aml_buffer);
-
- switch (acpi_ut_get_resource_type(aml_buffer)) {
- case ACPI_RESOURCE_NAME_IRQ:
- /*
- * IRQ Resource:
- * Get the number of bits set in the 16-bit IRQ mask
- */
- ACPI_MOVE_16_TO_16(&temp16, buffer);
- extra_struct_bytes = acpi_rs_count_set_bits(temp16);
- break;
-
- case ACPI_RESOURCE_NAME_DMA:
- /*
- * DMA Resource:
- * Get the number of bits set in the 8-bit DMA mask
- */
- extra_struct_bytes = acpi_rs_count_set_bits(*buffer);
- break;
-
- case ACPI_RESOURCE_NAME_VENDOR_SMALL:
- case ACPI_RESOURCE_NAME_VENDOR_LARGE:
- /*
- * Vendor Resource:
- * Get the number of vendor data bytes
- */
- extra_struct_bytes = resource_length;
- break;
-
- case ACPI_RESOURCE_NAME_END_TAG:
- /*
- * End Tag:
- * This is the normal exit, add size of end_tag
- */
- *size_needed += ACPI_RS_SIZE_MIN;
- return_ACPI_STATUS(AE_OK);
-
- case ACPI_RESOURCE_NAME_ADDRESS32:
- case ACPI_RESOURCE_NAME_ADDRESS16:
- case ACPI_RESOURCE_NAME_ADDRESS64:
- /*
- * Address Resource:
- * Add the size of the optional resource_source
- */
- extra_struct_bytes =
- acpi_rs_stream_option_length(resource_length,
- minimum_aml_resource_length);
- break;
-
- case ACPI_RESOURCE_NAME_EXTENDED_IRQ:
- /*
- * Extended IRQ Resource:
- * Using the interrupt_table_length, add 4 bytes for each additional
- * interrupt. Note: at least one interrupt is required and is
- * included in the minimum descriptor size (reason for the -1)
- */
- extra_struct_bytes = (buffer[1] - 1) * sizeof(u32);
-
- /* Add the size of the optional resource_source */
-
- extra_struct_bytes +=
- acpi_rs_stream_option_length(resource_length -
- extra_struct_bytes,
- minimum_aml_resource_length);
- break;
-
- default:
- break;
- }
-
- /*
- * Update the required buffer size for the internal descriptor structs
- *
- * Important: Round the size up for the appropriate alignment. This
- * is a requirement on IA64.
- */
- buffer_size = acpi_gbl_resource_struct_sizes[resource_index] +
- extra_struct_bytes;
- buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
-
- *size_needed += buffer_size;
-
- ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
- "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
- acpi_ut_get_resource_type(aml_buffer),
- acpi_ut_get_descriptor_length(aml_buffer),
- buffer_size));
-
- /*
- * Point to the next resource within the AML stream using the length
- * contained in the resource descriptor header
- */
- aml_buffer += acpi_ut_get_descriptor_length(aml_buffer);
- }
-
- /* Did not find an end_tag resource descriptor */
-
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_pci_routing_table_length
- *
- * PARAMETERS: package_object - Pointer to the package object
- * buffer_size_needed - u32 pointer of the size buffer
- * needed to properly return the
- * parsed data
- *
- * RETURN: Status
- *
- * DESCRIPTION: Given a package representing a PCI routing table, this
- * calculates the size of the corresponding linked list of
- * descriptions.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
- acpi_size * buffer_size_needed)
-{
- u32 number_of_elements;
- acpi_size temp_size_needed = 0;
- union acpi_operand_object **top_object_list;
- u32 index;
- union acpi_operand_object *package_element;
- union acpi_operand_object **sub_object_list;
- u8 name_found;
- u32 table_index;
-
- ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length);
-
- number_of_elements = package_object->package.count;
-
- /*
- * Calculate the size of the return buffer.
- * The base size is the number of elements * the sizes of the
- * structures. Additional space for the strings is added below.
- * The minus one is to subtract the size of the u8 Source[1]
- * member because it is added below.
- *
- * But each PRT_ENTRY structure has a pointer to a string and
- * the size of that string must be found.
- */
- top_object_list = package_object->package.elements;
-
- for (index = 0; index < number_of_elements; index++) {
-
- /* Dereference the sub-package */
-
- package_element = *top_object_list;
-
- /*
- * The sub_object_list will now point to an array of the
- * four IRQ elements: Address, Pin, Source and source_index
- */
- sub_object_list = package_element->package.elements;
-
- /* Scan the irq_table_elements for the Source Name String */
-
- name_found = FALSE;
-
- for (table_index = 0; table_index < 4 && !name_found;
- table_index++) {
- if (*sub_object_list && /* Null object allowed */
- ((ACPI_TYPE_STRING ==
- ACPI_GET_OBJECT_TYPE(*sub_object_list)) ||
- ((ACPI_TYPE_LOCAL_REFERENCE ==
- ACPI_GET_OBJECT_TYPE(*sub_object_list)) &&
- ((*sub_object_list)->reference.class ==
- ACPI_REFCLASS_NAME)))) {
- name_found = TRUE;
- } else {
- /* Look at the next element */
-
- sub_object_list++;
- }
- }
-
- temp_size_needed += (sizeof(struct acpi_pci_routing_table) - 4);
-
- /* Was a String type found? */
-
- if (name_found) {
- if (ACPI_GET_OBJECT_TYPE(*sub_object_list) ==
- ACPI_TYPE_STRING) {
- /*
- * The length String.Length field does not include the
- * terminating NULL, add 1
- */
- temp_size_needed += ((acpi_size)
- (*sub_object_list)->string.
- length + 1);
- } else {
- temp_size_needed +=
- acpi_ns_get_pathname_length((*sub_object_list)->reference.node);
- if (!temp_size_needed) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
- }
- } else {
- /*
- * If no name was found, then this is a NULL, which is
- * translated as a u32 zero.
- */
- temp_size_needed += sizeof(u32);
- }
-
- /* Round up the size since each element must be aligned */
-
- temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed);
-
- /* Point to the next union acpi_operand_object */
-
- top_object_list++;
- }
-
- /*
- * Add an extra element to the end of the list, essentially a
- * NULL terminator
- */
- *buffer_size_needed =
- temp_size_needed + sizeof(struct acpi_pci_routing_table);
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rscreate - Create resource lists/tables
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rscreate")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_create_resource_list
- *
- * PARAMETERS: aml_buffer - Pointer to the resource byte stream
- * output_buffer - Pointer to the user's buffer
- *
- * RETURN: Status: AE_OK if okay, else a valid acpi_status code
- * If output_buffer is not large enough, output_buffer_length
- * indicates how large output_buffer should be, else it
- * indicates how may u8 elements of output_buffer are valid.
- *
- * DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
- * execution and parses the stream to create a linked list
- * of device resources.
- *
- ******************************************************************************/
-acpi_status
-acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
- struct acpi_buffer *output_buffer)
-{
-
- acpi_status status;
- u8 *aml_start;
- acpi_size list_size_needed = 0;
- u32 aml_buffer_length;
- void *resource;
-
- ACPI_FUNCTION_TRACE(rs_create_resource_list);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer));
-
- /* Params already validated, so we don't re-validate here */
-
- aml_buffer_length = aml_buffer->buffer.length;
- aml_start = aml_buffer->buffer.pointer;
-
- /*
- * Pass the aml_buffer into a module that can calculate
- * the buffer size needed for the linked list
- */
- status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
- &list_size_needed);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
- status, (u32) list_size_needed));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- status = acpi_ut_initialize_buffer(output_buffer, list_size_needed);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Do the conversion */
-
- resource = output_buffer->pointer;
- status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length,
- acpi_rs_convert_aml_to_resources,
- &resource);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
- output_buffer->pointer, (u32) output_buffer->length));
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_create_pci_routing_table
- *
- * PARAMETERS: package_object - Pointer to an union acpi_operand_object
- * package
- * output_buffer - Pointer to the user's buffer
- *
- * RETURN: Status AE_OK if okay, else a valid acpi_status code.
- * If the output_buffer is too small, the error will be
- * AE_BUFFER_OVERFLOW and output_buffer->Length will point
- * to the size buffer needed.
- *
- * DESCRIPTION: Takes the union acpi_operand_object package and creates a
- * linked list of PCI interrupt descriptions
- *
- * NOTE: It is the caller's responsibility to ensure that the start of the
- * output buffer is aligned properly (if necessary).
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
- struct acpi_buffer *output_buffer)
-{
- u8 *buffer;
- union acpi_operand_object **top_object_list;
- union acpi_operand_object **sub_object_list;
- union acpi_operand_object *obj_desc;
- acpi_size buffer_size_needed = 0;
- u32 number_of_elements;
- u32 index;
- struct acpi_pci_routing_table *user_prt;
- struct acpi_namespace_node *node;
- acpi_status status;
- struct acpi_buffer path_buffer;
-
- ACPI_FUNCTION_TRACE(rs_create_pci_routing_table);
-
- /* Params already validated, so we don't re-validate here */
-
- /* Get the required buffer length */
-
- status = acpi_rs_get_pci_routing_table_length(package_object,
- &buffer_size_needed);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
- (u32) buffer_size_needed));
-
- /* Validate/Allocate/Clear caller buffer */
-
- status = acpi_ut_initialize_buffer(output_buffer, buffer_size_needed);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
- * package that in turn contains an acpi_integer Address, a u8 Pin,
- * a Name, and a u8 source_index.
- */
- top_object_list = package_object->package.elements;
- number_of_elements = package_object->package.count;
- buffer = output_buffer->pointer;
- user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
-
- for (index = 0; index < number_of_elements; index++) {
- int source_name_index = 2;
- int source_index_index = 3;
-
- /*
- * Point user_prt past this current structure
- *
- * NOTE: On the first iteration, user_prt->Length will
- * be zero because we cleared the return buffer earlier
- */
- buffer += user_prt->length;
- user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
-
- /*
- * Fill in the Length field with the information we have at this point.
- * The minus four is to subtract the size of the u8 Source[4] member
- * because it is added below.
- */
- user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4);
-
- /* Each element of the top-level package must also be a package */
-
- if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X]) Need sub-package, found %s",
- index,
- acpi_ut_get_object_type_name
- (*top_object_list)));
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- /* Each sub-package must be of length 4 */
-
- if ((*top_object_list)->package.count != 4) {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X]) Need package of length 4, found length %d",
- index, (*top_object_list)->package.count));
- return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
- }
-
- /*
- * Dereference the sub-package.
- * The sub_object_list will now point to an array of the four IRQ
- * elements: [Address, Pin, Source, source_index]
- */
- sub_object_list = (*top_object_list)->package.elements;
-
- /* 1) First subobject: Dereference the PRT.Address */
-
- obj_desc = sub_object_list[0];
- if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X].Address) Need Integer, found %s",
- index,
- acpi_ut_get_object_type_name(obj_desc)));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- user_prt->address = obj_desc->integer.value;
-
- /* 2) Second subobject: Dereference the PRT.Pin */
-
- obj_desc = sub_object_list[1];
- if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X].Pin) Need Integer, found %s",
- index,
- acpi_ut_get_object_type_name(obj_desc)));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- /*
- * If BIOS erroneously reversed the _PRT source_name and source_index,
- * then reverse them back.
- */
- if (ACPI_GET_OBJECT_TYPE(sub_object_list[3]) !=
- ACPI_TYPE_INTEGER) {
- if (acpi_gbl_enable_interpreter_slack) {
- source_name_index = 3;
- source_index_index = 2;
- printk(KERN_WARNING
- "ACPI: Handling Garbled _PRT entry\n");
- } else {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X].source_index) Need Integer, found %s",
- index,
- acpi_ut_get_object_type_name
- (sub_object_list[3])));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
- }
-
- user_prt->pin = (u32) obj_desc->integer.value;
-
- /*
- * If the BIOS has erroneously reversed the _PRT source_name (index 2)
- * and the source_index (index 3), fix it. _PRT is important enough to
- * workaround this BIOS error. This also provides compatibility with
- * other ACPI implementations.
- */
- obj_desc = sub_object_list[3];
- if (!obj_desc
- || (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER)) {
- sub_object_list[3] = sub_object_list[2];
- sub_object_list[2] = obj_desc;
-
- ACPI_WARNING((AE_INFO,
- "(PRT[%X].Source) SourceName and SourceIndex are reversed, fixed",
- index));
- }
-
- /*
- * 3) Third subobject: Dereference the PRT.source_name
- * The name may be unresolved (slack mode), so allow a null object
- */
- obj_desc = sub_object_list[source_name_index];
- if (obj_desc) {
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- if (obj_desc->reference.class !=
- ACPI_REFCLASS_NAME) {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X].Source) Need name, found Reference Class %X",
- index,
- obj_desc->reference.class));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- node = obj_desc->reference.node;
-
- /* Use *remaining* length of the buffer as max for pathname */
-
- path_buffer.length = output_buffer->length -
- (u32) ((u8 *) user_prt->source -
- (u8 *) output_buffer->pointer);
- path_buffer.pointer = user_prt->source;
-
- status =
- acpi_ns_handle_to_pathname((acpi_handle)
- node,
- &path_buffer);
-
- /* +1 to include null terminator */
-
- user_prt->length +=
- (u32) ACPI_STRLEN(user_prt->source) + 1;
- break;
-
- case ACPI_TYPE_STRING:
-
- ACPI_STRCPY(user_prt->source,
- obj_desc->string.pointer);
-
- /*
- * Add to the Length field the length of the string
- * (add 1 for terminator)
- */
- user_prt->length += obj_desc->string.length + 1;
- break;
-
- case ACPI_TYPE_INTEGER:
- /*
- * If this is a number, then the Source Name is NULL, since the
- * entire buffer was zeroed out, we can leave this alone.
- *
- * Add to the Length field the length of the u32 NULL
- */
- user_prt->length += sizeof(u32);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "(PRT[%X].Source) Need Ref/String/Integer, found %s",
- index,
- acpi_ut_get_object_type_name
- (obj_desc)));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
- }
-
- /* Now align the current length */
-
- user_prt->length =
- (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
-
- /* 4) Fourth subobject: Dereference the PRT.source_index */
-
- obj_desc = sub_object_list[source_index_index];
- if (ACPI_GET_OBJECT_TYPE(obj_desc) != ACPI_TYPE_INTEGER) {
- ACPI_ERROR((AE_INFO,
- "(PRT[%X].SourceIndex) Need Integer, found %s",
- index,
- acpi_ut_get_object_type_name(obj_desc)));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- user_prt->source_index = (u32) obj_desc->integer.value;
-
- /* Point to the next union acpi_operand_object in the top level package */
-
- top_object_list++;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
- output_buffer->pointer, (u32) output_buffer->length));
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_create_aml_resources
- *
- * PARAMETERS: linked_list_buffer - Pointer to the resource linked list
- * output_buffer - Pointer to the user's buffer
- *
- * RETURN: Status AE_OK if okay, else a valid acpi_status code.
- * If the output_buffer is too small, the error will be
- * AE_BUFFER_OVERFLOW and output_buffer->Length will point
- * to the size buffer needed.
- *
- * DESCRIPTION: Takes the linked list of device resources and
- * creates a bytestream to be used as input for the
- * _SRS control method.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
- struct acpi_buffer *output_buffer)
-{
- acpi_status status;
- acpi_size aml_size_needed = 0;
-
- ACPI_FUNCTION_TRACE(rs_create_aml_resources);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
- linked_list_buffer));
-
- /*
- * Params already validated, so we don't re-validate here
- *
- * Pass the linked_list_buffer into a module that calculates
- * the buffer size needed for the byte stream.
- */
- status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
- (u32) aml_size_needed,
- acpi_format_exception(status)));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Do the conversion */
-
- status =
- acpi_rs_convert_resources_to_aml(linked_list_buffer,
- aml_size_needed,
- output_buffer->pointer);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
- output_buffer->pointer, (u32) output_buffer->length));
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsdump - Functions to display the resource structures.
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsdump")
-#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-/* Local prototypes */
-static void acpi_rs_out_string(char *title, char *value);
-
-static void acpi_rs_out_integer8(char *title, u8 value);
-
-static void acpi_rs_out_integer16(char *title, u16 value);
-
-static void acpi_rs_out_integer32(char *title, u32 value);
-
-static void acpi_rs_out_integer64(char *title, u64 value);
-
-static void acpi_rs_out_title(char *title);
-
-static void acpi_rs_dump_byte_list(u16 length, u8 * data);
-
-static void acpi_rs_dump_dword_list(u8 length, u32 * data);
-
-static void acpi_rs_dump_short_byte_list(u8 length, u8 * data);
-
-static void
-acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
-
-static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
-
-static void
-acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
-
-#define ACPI_RSD_OFFSET(f) (u8) ACPI_OFFSET (union acpi_resource_data,f)
-#define ACPI_PRT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_pci_routing_table,f)
-#define ACPI_RSD_TABLE_SIZE(name) (sizeof(name) / sizeof (struct acpi_rsdump_info))
-
-/*******************************************************************************
- *
- * Resource Descriptor info tables
- *
- * Note: The first table entry must be a Title or Literal and must contain
- * the table length (number of table entries)
- *
- ******************************************************************************/
-
-struct acpi_rsdump_info acpi_rs_dump_irq[7] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.descriptor_length),
- "Descriptor Length", NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering",
- acpi_gbl_he_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity",
- acpi_gbl_ll_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing",
- acpi_gbl_shr_decode},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count),
- "Interrupt Count", NULL},
- {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]),
- "Interrupt List", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_dma[6] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed",
- acpi_gbl_typ_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering",
- acpi_gbl_bm_decode},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type",
- acpi_gbl_siz_decode},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count",
- NULL},
- {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List",
- NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_start_dpf[4] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_start_dpf),
- "Start-Dependent-Functions", NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(start_dpf.descriptor_length),
- "Descriptor Length", NULL},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.compatibility_priority),
- "Compatibility Priority", acpi_gbl_config_decode},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(start_dpf.performance_robustness),
- "Performance/Robustness", acpi_gbl_config_decode}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_end_dpf[1] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_dpf),
- "End-Dependent-Functions", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_io[6] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io), "I/O", NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(io.io_decode), "Address Decoding",
- acpi_gbl_io_decode},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.minimum), "Address Minimum", NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(io.maximum), "Address Maximum", NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.alignment), "Alignment", NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(io.address_length), "Address Length",
- NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_fixed_io[3] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_io),
- "Fixed I/O", NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(fixed_io.address), "Address", NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(fixed_io.address_length),
- "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_vendor[3] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_vendor),
- "Vendor Specific", NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(vendor.byte_length), "Length", NULL},
- {ACPI_RSD_LONGLIST, ACPI_RSD_OFFSET(vendor.byte_data[0]), "Vendor Data",
- NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag",
- NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_memory24[6] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24),
- "24-Bit Memory Range", NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect),
- "Write Protect", acpi_gbl_rw_decode},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum",
- NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum",
- NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.alignment), "Alignment",
- NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.address_length),
- "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_memory32[6] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32),
- "32-Bit Memory Range", NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect),
- "Write Protect", acpi_gbl_rw_decode},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.alignment), "Alignment",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.address_length),
- "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32),
- "32-Bit Fixed Memory Range", NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect),
- "Write Protect", acpi_gbl_rw_decode},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length),
- "Address Length", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_address16[8] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address16),
- "16-Bit WORD Address Space", NULL},
- {ACPI_RSD_ADDRESS, 0, NULL, NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.granularity), "Granularity",
- NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.minimum), "Address Minimum",
- NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.maximum), "Address Maximum",
- NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.translation_offset),
- "Translation Offset", NULL},
- {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(address16.address_length),
- "Address Length", NULL},
- {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address16.resource_source), NULL, NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_address32[8] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address32),
- "32-Bit DWORD Address Space", NULL},
- {ACPI_RSD_ADDRESS, 0, NULL, NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.granularity), "Granularity",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.minimum), "Address Minimum",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.maximum), "Address Maximum",
- NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.translation_offset),
- "Translation Offset", NULL},
- {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(address32.address_length),
- "Address Length", NULL},
- {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address32.resource_source), NULL, NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_address64[8] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_address64),
- "64-Bit QWORD Address Space", NULL},
- {ACPI_RSD_ADDRESS, 0, NULL, NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.granularity), "Granularity",
- NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.minimum), "Address Minimum",
- NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.maximum), "Address Maximum",
- NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.translation_offset),
- "Translation Offset", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(address64.address_length),
- "Address Length", NULL},
- {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(address64.resource_source), NULL, NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_ext_address64[8] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_address64),
- "64-Bit Extended Address Space", NULL},
- {ACPI_RSD_ADDRESS, 0, NULL, NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.granularity),
- "Granularity", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.minimum),
- "Address Minimum", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.maximum),
- "Address Maximum", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.translation_offset),
- "Translation Offset", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.address_length),
- "Address Length", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(ext_address64.type_specific),
- "Type-Specific Attribute", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_ext_irq),
- "Extended IRQ", NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer),
- "Type", acpi_gbl_consume_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering),
- "Triggering", acpi_gbl_he_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity",
- acpi_gbl_ll_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing",
- acpi_gbl_shr_decode},
- {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL,
- NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count),
- "Interrupt Count", NULL},
- {ACPI_RSD_DWORDLIST, ACPI_RSD_OFFSET(extended_irq.interrupts[0]),
- "Interrupt List", NULL}
-};
-
-struct acpi_rsdump_info acpi_rs_dump_generic_reg[6] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_generic_reg),
- "Generic Register", NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.space_id), "Space ID",
- NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_width), "Bit Width",
- NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.bit_offset), "Bit Offset",
- NULL},
- {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(generic_reg.access_size),
- "Access Size", NULL},
- {ACPI_RSD_UINT64, ACPI_RSD_OFFSET(generic_reg.address), "Address", NULL}
-};
-
-/*
- * Tables used for common address descriptor flag fields
- */
-static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_general_flags), NULL,
- NULL},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer),
- "Consumer/Producer", acpi_gbl_consume_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode",
- acpi_gbl_dec_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed),
- "Min Relocatability", acpi_gbl_min_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed),
- "Max Relocatability", acpi_gbl_max_decode}
-};
-
-static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = {
- {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags),
- "Resource Type", (void *)"Memory Range"},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect),
- "Write Protect", acpi_gbl_rw_decode},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching),
- "Caching", acpi_gbl_mem_decode},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type),
- "Range Type", acpi_gbl_mtp_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation),
- "Translation", acpi_gbl_ttp_decode}
-};
-
-static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = {
- {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags),
- "Resource Type", (void *)"I/O Range"},
- {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type),
- "Range Type", acpi_gbl_rng_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation),
- "Translation", acpi_gbl_ttp_decode},
- {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type),
- "Translation Type", acpi_gbl_trs_decode}
-};
-
-/*
- * Table used to dump _PRT contents
- */
-static struct acpi_rsdump_info acpi_rs_dump_prt[5] = {
- {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_prt), NULL, NULL},
- {ACPI_RSD_UINT64, ACPI_PRT_OFFSET(address), "Address", NULL},
- {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(pin), "Pin", NULL},
- {ACPI_RSD_STRING, ACPI_PRT_OFFSET(source[0]), "Source", NULL},
- {ACPI_RSD_UINT32, ACPI_PRT_OFFSET(source_index), "Source Index", NULL}
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_dump_descriptor
- *
- * PARAMETERS: Resource
- *
- * RETURN: None
- *
- * DESCRIPTION:
- *
- ******************************************************************************/
-
-static void
-acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
-{
- u8 *target = NULL;
- u8 *previous_target;
- char *name;
- u8 count;
-
- /* First table entry must contain the table length (# of table entries) */
-
- count = table->offset;
-
- while (count) {
- previous_target = target;
- target = ACPI_ADD_PTR(u8, resource, table->offset);
- name = table->name;
-
- switch (table->opcode) {
- case ACPI_RSD_TITLE:
- /*
- * Optional resource title
- */
- if (table->name) {
- acpi_os_printf("%s Resource\n", name);
- }
- break;
-
- /* Strings */
-
- case ACPI_RSD_LITERAL:
- acpi_rs_out_string(name,
- ACPI_CAST_PTR(char, table->pointer));
- break;
-
- case ACPI_RSD_STRING:
- acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
- break;
-
- /* Data items, 8/16/32/64 bit */
-
- case ACPI_RSD_UINT8:
- acpi_rs_out_integer8(name, ACPI_GET8(target));
- break;
-
- case ACPI_RSD_UINT16:
- acpi_rs_out_integer16(name, ACPI_GET16(target));
- break;
-
- case ACPI_RSD_UINT32:
- acpi_rs_out_integer32(name, ACPI_GET32(target));
- break;
-
- case ACPI_RSD_UINT64:
- acpi_rs_out_integer64(name, ACPI_GET64(target));
- break;
-
- /* Flags: 1-bit and 2-bit flags supported */
-
- case ACPI_RSD_1BITFLAG:
- acpi_rs_out_string(name, ACPI_CAST_PTR(char,
- table->
- pointer[*target &
- 0x01]));
- break;
-
- case ACPI_RSD_2BITFLAG:
- acpi_rs_out_string(name, ACPI_CAST_PTR(char,
- table->
- pointer[*target &
- 0x03]));
- break;
-
- case ACPI_RSD_SHORTLIST:
- /*
- * Short byte list (single line output) for DMA and IRQ resources
- * Note: The list length is obtained from the previous table entry
- */
- if (previous_target) {
- acpi_rs_out_title(name);
- acpi_rs_dump_short_byte_list(*previous_target,
- target);
- }
- break;
-
- case ACPI_RSD_LONGLIST:
- /*
- * Long byte list for Vendor resource data
- * Note: The list length is obtained from the previous table entry
- */
- if (previous_target) {
- acpi_rs_dump_byte_list(ACPI_GET16
- (previous_target),
- target);
- }
- break;
-
- case ACPI_RSD_DWORDLIST:
- /*
- * Dword list for Extended Interrupt resources
- * Note: The list length is obtained from the previous table entry
- */
- if (previous_target) {
- acpi_rs_dump_dword_list(*previous_target,
- ACPI_CAST_PTR(u32,
- target));
- }
- break;
-
- case ACPI_RSD_ADDRESS:
- /*
- * Common flags for all Address resources
- */
- acpi_rs_dump_address_common(ACPI_CAST_PTR
- (union acpi_resource_data,
- target));
- break;
-
- case ACPI_RSD_SOURCE:
- /*
- * Optional resource_source for Address resources
- */
- acpi_rs_dump_resource_source(ACPI_CAST_PTR(struct
- acpi_resource_source,
- target));
- break;
-
- default:
- acpi_os_printf("**** Invalid table opcode [%X] ****\n",
- table->opcode);
- return;
- }
-
- table++;
- count--;
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_dump_resource_source
- *
- * PARAMETERS: resource_source - Pointer to a Resource Source struct
- *
- * RETURN: None
- *
- * DESCRIPTION: Common routine for dumping the optional resource_source and the
- * corresponding resource_source_index.
- *
- ******************************************************************************/
-
-static void
-acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
-{
- ACPI_FUNCTION_ENTRY();
-
- if (resource_source->index == 0xFF) {
- return;
- }
-
- acpi_rs_out_integer8("Resource Source Index", resource_source->index);
-
- acpi_rs_out_string("Resource Source",
- resource_source->string_ptr ?
- resource_source->string_ptr : "[Not Specified]");
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_dump_address_common
- *
- * PARAMETERS: Resource - Pointer to an internal resource descriptor
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump the fields that are common to all Address resource
- * descriptors
- *
- ******************************************************************************/
-
-static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Decode the type-specific flags */
-
- switch (resource->address.resource_type) {
- case ACPI_MEMORY_RANGE:
-
- acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
- break;
-
- case ACPI_IO_RANGE:
-
- acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
- break;
-
- case ACPI_BUS_NUMBER_RANGE:
-
- acpi_rs_out_string("Resource Type", "Bus Number Range");
- break;
-
- default:
-
- acpi_rs_out_integer8("Resource Type",
- (u8) resource->address.resource_type);
- break;
- }
-
- /* Decode the general flags */
-
- acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_dump_resource_list
- *
- * PARAMETERS: resource_list - Pointer to a resource descriptor list
- *
- * RETURN: None
- *
- * DESCRIPTION: Dispatches the structure to the correct dump routine.
- *
- ******************************************************************************/
-
-void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
-{
- u32 count = 0;
- u32 type;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!(acpi_dbg_level & ACPI_LV_RESOURCES)
- || !(_COMPONENT & acpi_dbg_layer)) {
- return;
- }
-
- /* Walk list and dump all resource descriptors (END_TAG terminates) */
-
- do {
- acpi_os_printf("\n[%02X] ", count);
- count++;
-
- /* Validate Type before dispatch */
-
- type = resource_list->type;
- if (type > ACPI_RESOURCE_TYPE_MAX) {
- acpi_os_printf
- ("Invalid descriptor type (%X) in resource list\n",
- resource_list->type);
- return;
- }
-
- /* Dump the resource descriptor */
-
- acpi_rs_dump_descriptor(&resource_list->data,
- acpi_gbl_dump_resource_dispatch[type]);
-
- /* Point to the next resource structure */
-
- resource_list =
- ACPI_ADD_PTR(struct acpi_resource, resource_list,
- resource_list->length);
-
- /* Exit when END_TAG descriptor is reached */
-
- } while (type != ACPI_RESOURCE_TYPE_END_TAG);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_dump_irq_list
- *
- * PARAMETERS: route_table - Pointer to the routing table to dump.
- *
- * RETURN: None
- *
- * DESCRIPTION: Print IRQ routing table
- *
- ******************************************************************************/
-
-void acpi_rs_dump_irq_list(u8 * route_table)
-{
- struct acpi_pci_routing_table *prt_element;
- u8 count;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!(acpi_dbg_level & ACPI_LV_RESOURCES)
- || !(_COMPONENT & acpi_dbg_layer)) {
- return;
- }
-
- prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
-
- /* Dump all table elements, Exit on zero length element */
-
- for (count = 0; prt_element->length; count++) {
- acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
- count);
- acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
-
- prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
- prt_element, prt_element->length);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_out*
- *
- * PARAMETERS: Title - Name of the resource field
- * Value - Value of the resource field
- *
- * RETURN: None
- *
- * DESCRIPTION: Miscellaneous helper functions to consistently format the
- * output of the resource dump routines
- *
- ******************************************************************************/
-
-static void acpi_rs_out_string(char *title, char *value)
-{
- acpi_os_printf("%27s : %s", title, value);
- if (!*value) {
- acpi_os_printf("[NULL NAMESTRING]");
- }
- acpi_os_printf("\n");
-}
-
-static void acpi_rs_out_integer8(char *title, u8 value)
-{
- acpi_os_printf("%27s : %2.2X\n", title, value);
-}
-
-static void acpi_rs_out_integer16(char *title, u16 value)
-{
- acpi_os_printf("%27s : %4.4X\n", title, value);
-}
-
-static void acpi_rs_out_integer32(char *title, u32 value)
-{
- acpi_os_printf("%27s : %8.8X\n", title, value);
-}
-
-static void acpi_rs_out_integer64(char *title, u64 value)
-{
- acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
-}
-
-static void acpi_rs_out_title(char *title)
-{
- acpi_os_printf("%27s : ", title);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_dump*List
- *
- * PARAMETERS: Length - Number of elements in the list
- * Data - Start of the list
- *
- * RETURN: None
- *
- * DESCRIPTION: Miscellaneous functions to dump lists of raw data
- *
- ******************************************************************************/
-
-static void acpi_rs_dump_byte_list(u16 length, u8 * data)
-{
- u8 i;
-
- for (i = 0; i < length; i++) {
- acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
- }
-}
-
-static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
-{
- u8 i;
-
- for (i = 0; i < length; i++) {
- acpi_os_printf("%X ", data[i]);
- }
- acpi_os_printf("\n");
-}
-
-static void acpi_rs_dump_dword_list(u8 length, u32 * data)
-{
- u8 i;
-
- for (i = 0; i < length; i++) {
- acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
- }
-}
-
-#endif
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsinfo - Dispatch and Info tables
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsinfo")
-
-/*
- * Resource dispatch and information tables. Any new resource types (either
- * Large or Small) must be reflected in each of these tables, so they are here
- * in one place.
- *
- * The tables for Large descriptors are indexed by bits 6:0 of the AML
- * descriptor type byte. The tables for Small descriptors are indexed by
- * bits 6:3 of the descriptor byte. The tables for internal resource
- * descriptors are indexed by the acpi_resource_type field.
- */
-/* Dispatch table for resource-to-AML (Set Resource) conversion functions */
-struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
- acpi_rs_set_irq, /* 0x00, ACPI_RESOURCE_TYPE_IRQ */
- acpi_rs_convert_dma, /* 0x01, ACPI_RESOURCE_TYPE_DMA */
- acpi_rs_set_start_dpf, /* 0x02, ACPI_RESOURCE_TYPE_START_DEPENDENT */
- acpi_rs_convert_end_dpf, /* 0x03, ACPI_RESOURCE_TYPE_END_DEPENDENT */
- acpi_rs_convert_io, /* 0x04, ACPI_RESOURCE_TYPE_IO */
- acpi_rs_convert_fixed_io, /* 0x05, ACPI_RESOURCE_TYPE_FIXED_IO */
- acpi_rs_set_vendor, /* 0x06, ACPI_RESOURCE_TYPE_VENDOR */
- acpi_rs_convert_end_tag, /* 0x07, ACPI_RESOURCE_TYPE_END_TAG */
- acpi_rs_convert_memory24, /* 0x08, ACPI_RESOURCE_TYPE_MEMORY24 */
- acpi_rs_convert_memory32, /* 0x09, ACPI_RESOURCE_TYPE_MEMORY32 */
- acpi_rs_convert_fixed_memory32, /* 0x0A, ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
- acpi_rs_convert_address16, /* 0x0B, ACPI_RESOURCE_TYPE_ADDRESS16 */
- acpi_rs_convert_address32, /* 0x0C, ACPI_RESOURCE_TYPE_ADDRESS32 */
- acpi_rs_convert_address64, /* 0x0D, ACPI_RESOURCE_TYPE_ADDRESS64 */
- acpi_rs_convert_ext_address64, /* 0x0E, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
- acpi_rs_convert_ext_irq, /* 0x0F, ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
- acpi_rs_convert_generic_reg /* 0x10, ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
-};
-
-/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
-
-struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
- /* Small descriptors */
-
- NULL, /* 0x00, Reserved */
- NULL, /* 0x01, Reserved */
- NULL, /* 0x02, Reserved */
- NULL, /* 0x03, Reserved */
- acpi_rs_get_irq, /* 0x04, ACPI_RESOURCE_NAME_IRQ */
- acpi_rs_convert_dma, /* 0x05, ACPI_RESOURCE_NAME_DMA */
- acpi_rs_get_start_dpf, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */
- acpi_rs_convert_end_dpf, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */
- acpi_rs_convert_io, /* 0x08, ACPI_RESOURCE_NAME_IO */
- acpi_rs_convert_fixed_io, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO */
- NULL, /* 0x0A, Reserved */
- NULL, /* 0x0B, Reserved */
- NULL, /* 0x0C, Reserved */
- NULL, /* 0x0D, Reserved */
- acpi_rs_get_vendor_small, /* 0x0E, ACPI_RESOURCE_NAME_VENDOR_SMALL */
- acpi_rs_convert_end_tag, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG */
-
- /* Large descriptors */
-
- NULL, /* 0x00, Reserved */
- acpi_rs_convert_memory24, /* 0x01, ACPI_RESOURCE_NAME_MEMORY24 */
- acpi_rs_convert_generic_reg, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */
- NULL, /* 0x03, Reserved */
- acpi_rs_get_vendor_large, /* 0x04, ACPI_RESOURCE_NAME_VENDOR_LARGE */
- acpi_rs_convert_memory32, /* 0x05, ACPI_RESOURCE_NAME_MEMORY32 */
- acpi_rs_convert_fixed_memory32, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY32 */
- acpi_rs_convert_address32, /* 0x07, ACPI_RESOURCE_NAME_ADDRESS32 */
- acpi_rs_convert_address16, /* 0x08, ACPI_RESOURCE_NAME_ADDRESS16 */
- acpi_rs_convert_ext_irq, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_IRQ */
- acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */
- acpi_rs_convert_ext_address64 /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */
-};
-
-#ifdef ACPI_FUTURE_USAGE
-#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-
-/* Dispatch table for resource dump functions */
-
-struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
- acpi_rs_dump_irq, /* ACPI_RESOURCE_TYPE_IRQ */
- acpi_rs_dump_dma, /* ACPI_RESOURCE_TYPE_DMA */
- acpi_rs_dump_start_dpf, /* ACPI_RESOURCE_TYPE_START_DEPENDENT */
- acpi_rs_dump_end_dpf, /* ACPI_RESOURCE_TYPE_END_DEPENDENT */
- acpi_rs_dump_io, /* ACPI_RESOURCE_TYPE_IO */
- acpi_rs_dump_fixed_io, /* ACPI_RESOURCE_TYPE_FIXED_IO */
- acpi_rs_dump_vendor, /* ACPI_RESOURCE_TYPE_VENDOR */
- acpi_rs_dump_end_tag, /* ACPI_RESOURCE_TYPE_END_TAG */
- acpi_rs_dump_memory24, /* ACPI_RESOURCE_TYPE_MEMORY24 */
- acpi_rs_dump_memory32, /* ACPI_RESOURCE_TYPE_MEMORY32 */
- acpi_rs_dump_fixed_memory32, /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
- acpi_rs_dump_address16, /* ACPI_RESOURCE_TYPE_ADDRESS16 */
- acpi_rs_dump_address32, /* ACPI_RESOURCE_TYPE_ADDRESS32 */
- acpi_rs_dump_address64, /* ACPI_RESOURCE_TYPE_ADDRESS64 */
- acpi_rs_dump_ext_address64, /* ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
- acpi_rs_dump_ext_irq, /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
- acpi_rs_dump_generic_reg, /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
-};
-#endif
-
-#endif /* ACPI_FUTURE_USAGE */
-/*
- * Base sizes for external AML resource descriptors, indexed by internal type.
- * Includes size of the descriptor header (1 byte for small descriptors,
- * 3 bytes for large descriptors)
- */
-const u8 acpi_gbl_aml_resource_sizes[] = {
- sizeof(struct aml_resource_irq), /* ACPI_RESOURCE_TYPE_IRQ (optional Byte 3 always created) */
- sizeof(struct aml_resource_dma), /* ACPI_RESOURCE_TYPE_DMA */
- sizeof(struct aml_resource_start_dependent), /* ACPI_RESOURCE_TYPE_START_DEPENDENT (optional Byte 1 always created) */
- sizeof(struct aml_resource_end_dependent), /* ACPI_RESOURCE_TYPE_END_DEPENDENT */
- sizeof(struct aml_resource_io), /* ACPI_RESOURCE_TYPE_IO */
- sizeof(struct aml_resource_fixed_io), /* ACPI_RESOURCE_TYPE_FIXED_IO */
- sizeof(struct aml_resource_vendor_small), /* ACPI_RESOURCE_TYPE_VENDOR */
- sizeof(struct aml_resource_end_tag), /* ACPI_RESOURCE_TYPE_END_TAG */
- sizeof(struct aml_resource_memory24), /* ACPI_RESOURCE_TYPE_MEMORY24 */
- sizeof(struct aml_resource_memory32), /* ACPI_RESOURCE_TYPE_MEMORY32 */
- sizeof(struct aml_resource_fixed_memory32), /* ACPI_RESOURCE_TYPE_FIXED_MEMORY32 */
- sizeof(struct aml_resource_address16), /* ACPI_RESOURCE_TYPE_ADDRESS16 */
- sizeof(struct aml_resource_address32), /* ACPI_RESOURCE_TYPE_ADDRESS32 */
- sizeof(struct aml_resource_address64), /* ACPI_RESOURCE_TYPE_ADDRESS64 */
- sizeof(struct aml_resource_extended_address64), /*ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64 */
- sizeof(struct aml_resource_extended_irq), /* ACPI_RESOURCE_TYPE_EXTENDED_IRQ */
- sizeof(struct aml_resource_generic_register) /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */
-};
-
-const u8 acpi_gbl_resource_struct_sizes[] = {
- /* Small descriptors */
-
- 0,
- 0,
- 0,
- 0,
- ACPI_RS_SIZE(struct acpi_resource_irq),
- ACPI_RS_SIZE(struct acpi_resource_dma),
- ACPI_RS_SIZE(struct acpi_resource_start_dependent),
- ACPI_RS_SIZE_MIN,
- ACPI_RS_SIZE(struct acpi_resource_io),
- ACPI_RS_SIZE(struct acpi_resource_fixed_io),
- 0,
- 0,
- 0,
- 0,
- ACPI_RS_SIZE(struct acpi_resource_vendor),
- ACPI_RS_SIZE_MIN,
-
- /* Large descriptors */
-
- 0,
- ACPI_RS_SIZE(struct acpi_resource_memory24),
- ACPI_RS_SIZE(struct acpi_resource_generic_register),
- 0,
- ACPI_RS_SIZE(struct acpi_resource_vendor),
- ACPI_RS_SIZE(struct acpi_resource_memory32),
- ACPI_RS_SIZE(struct acpi_resource_fixed_memory32),
- ACPI_RS_SIZE(struct acpi_resource_address32),
- ACPI_RS_SIZE(struct acpi_resource_address16),
- ACPI_RS_SIZE(struct acpi_resource_extended_irq),
- ACPI_RS_SIZE(struct acpi_resource_address64),
- ACPI_RS_SIZE(struct acpi_resource_extended_address64)
-};
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsio - IO and DMA resource descriptors
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsio")
-
-/*******************************************************************************
- *
- * acpi_rs_convert_io
- *
- ******************************************************************************/
-struct acpi_rsconvert_info acpi_rs_convert_io[5] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IO,
- ACPI_RS_SIZE(struct acpi_resource_io),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IO,
- sizeof(struct aml_resource_io),
- 0},
-
- /* Decode flag */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.io.io_decode),
- AML_OFFSET(io.flags),
- 0},
- /*
- * These fields are contiguous in both the source and destination:
- * Address Alignment
- * Length
- * Minimum Base Address
- * Maximum Base Address
- */
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.io.alignment),
- AML_OFFSET(io.alignment),
- 2},
-
- {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.io.minimum),
- AML_OFFSET(io.minimum),
- 2}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_fixed_io
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_fixed_io[4] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_IO,
- ACPI_RS_SIZE(struct acpi_resource_fixed_io),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_io)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_IO,
- sizeof(struct aml_resource_fixed_io),
- 0},
- /*
- * These fields are contiguous in both the source and destination:
- * Base Address
- * Length
- */
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.fixed_io.address_length),
- AML_OFFSET(fixed_io.address_length),
- 1},
-
- {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.fixed_io.address),
- AML_OFFSET(fixed_io.address),
- 1}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_generic_reg
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_generic_reg[4] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GENERIC_REGISTER,
- ACPI_RS_SIZE(struct acpi_resource_generic_register),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_generic_reg)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GENERIC_REGISTER,
- sizeof(struct aml_resource_generic_register),
- 0},
- /*
- * These fields are contiguous in both the source and destination:
- * Address Space ID
- * Register Bit Width
- * Register Bit Offset
- * Access Size
- */
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.generic_reg.space_id),
- AML_OFFSET(generic_reg.address_space_id),
- 4},
-
- /* Get the Register Address */
-
- {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.generic_reg.address),
- AML_OFFSET(generic_reg.address),
- 1}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_end_dpf
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_end_dpf[2] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_DEPENDENT,
- ACPI_RS_SIZE_MIN,
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_dpf)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_DEPENDENT,
- sizeof(struct aml_resource_end_dependent),
- 0}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_end_tag
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_end_tag[2] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_END_TAG,
- ACPI_RS_SIZE_MIN,
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_end_tag)},
-
- /*
- * Note: The checksum field is set to zero, meaning that the resource
- * data is treated as if the checksum operation succeeded.
- * (ACPI Spec 1.0b Section 6.4.2.8)
- */
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_END_TAG,
- sizeof(struct aml_resource_end_tag),
- 0}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_get_start_dpf
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_get_start_dpf[6] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_START_DEPENDENT,
- ACPI_RS_SIZE(struct acpi_resource_start_dependent),
- ACPI_RSC_TABLE_SIZE(acpi_rs_get_start_dpf)},
-
- /* Defaults for Compatibility and Performance priorities */
-
- {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
- ACPI_ACCEPTABLE_CONFIGURATION,
- 2},
-
- /* Get the descriptor length (0 or 1 for Start Dpf descriptor) */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
- AML_OFFSET(start_dpf.descriptor_type),
- 0},
-
- /* All done if there is no flag byte present in the descriptor */
-
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 1},
-
- /* Flag byte is present, get the flags */
-
- {ACPI_RSC_2BITFLAG,
- ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
- AML_OFFSET(start_dpf.flags),
- 0},
-
- {ACPI_RSC_2BITFLAG,
- ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
- AML_OFFSET(start_dpf.flags),
- 2}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_set_start_dpf
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_set_start_dpf[10] = {
- /* Start with a default descriptor of length 1 */
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_START_DEPENDENT,
- sizeof(struct aml_resource_start_dependent),
- ACPI_RSC_TABLE_SIZE(acpi_rs_set_start_dpf)},
-
- /* Set the default flag values */
-
- {ACPI_RSC_2BITFLAG,
- ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
- AML_OFFSET(start_dpf.flags),
- 0},
-
- {ACPI_RSC_2BITFLAG,
- ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
- AML_OFFSET(start_dpf.flags),
- 2},
- /*
- * All done if the output descriptor length is required to be 1
- * (i.e., optimization to 0 bytes cannot be attempted)
- */
- {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
- 1},
-
- /* Set length to 0 bytes (no flags byte) */
-
- {ACPI_RSC_LENGTH, 0, 0,
- sizeof(struct aml_resource_start_dependent_noprio)},
-
- /*
- * All done if the output descriptor length is required to be 0.
- *
- * TBD: Perhaps we should check for error if input flags are not
- * compatible with a 0-byte descriptor.
- */
- {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.start_dpf.descriptor_length),
- 0},
-
- /* Reset length to 1 byte (descriptor with flags byte) */
-
- {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_start_dependent)},
-
- /*
- * All done if flags byte is necessary -- if either priority value
- * is not ACPI_ACCEPTABLE_CONFIGURATION
- */
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.start_dpf.compatibility_priority),
- ACPI_ACCEPTABLE_CONFIGURATION},
-
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.start_dpf.performance_robustness),
- ACPI_ACCEPTABLE_CONFIGURATION},
-
- /* Flag byte is not necessary */
-
- {ACPI_RSC_LENGTH, 0, 0,
- sizeof(struct aml_resource_start_dependent_noprio)}
-};
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsirq - IRQ resource descriptors
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsirq")
-
-/*******************************************************************************
- *
- * acpi_rs_get_irq
- *
- ******************************************************************************/
-struct acpi_rsconvert_info acpi_rs_get_irq[8] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_IRQ,
- ACPI_RS_SIZE(struct acpi_resource_irq),
- ACPI_RSC_TABLE_SIZE(acpi_rs_get_irq)},
-
- /* Get the IRQ mask (bytes 1:2) */
-
- {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
- AML_OFFSET(irq.irq_mask),
- ACPI_RS_OFFSET(data.irq.interrupt_count)},
-
- /* Set default flags (others are zero) */
-
- {ACPI_RSC_SET8, ACPI_RS_OFFSET(data.irq.triggering),
- ACPI_EDGE_SENSITIVE,
- 1},
-
- /* Get the descriptor length (2 or 3 for IRQ descriptor) */
-
- {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.irq.descriptor_length),
- AML_OFFSET(irq.descriptor_type),
- 0},
-
- /* All done if no flag byte present in descriptor */
-
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_AML_LENGTH, 0, 3},
-
- /* Get flags: Triggering[0], Polarity[3], Sharing[4] */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
- AML_OFFSET(irq.flags),
- 0},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
- AML_OFFSET(irq.flags),
- 3},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
- AML_OFFSET(irq.flags),
- 4}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_set_irq
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_set_irq[13] = {
- /* Start with a default descriptor of length 3 */
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_IRQ,
- sizeof(struct aml_resource_irq),
- ACPI_RSC_TABLE_SIZE(acpi_rs_set_irq)},
-
- /* Convert interrupt list to 16-bit IRQ bitmask */
-
- {ACPI_RSC_BITMASK16, ACPI_RS_OFFSET(data.irq.interrupts[0]),
- AML_OFFSET(irq.irq_mask),
- ACPI_RS_OFFSET(data.irq.interrupt_count)},
-
- /* Set the flags byte */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.triggering),
- AML_OFFSET(irq.flags),
- 0},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.polarity),
- AML_OFFSET(irq.flags),
- 3},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.irq.sharable),
- AML_OFFSET(irq.flags),
- 4},
-
- /*
- * All done if the output descriptor length is required to be 3
- * (i.e., optimization to 2 bytes cannot be attempted)
- */
- {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.irq.descriptor_length),
- 3},
-
- /* Set length to 2 bytes (no flags byte) */
-
- {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)},
-
- /*
- * All done if the output descriptor length is required to be 2.
- *
- * TBD: Perhaps we should check for error if input flags are not
- * compatible with a 2-byte descriptor.
- */
- {ACPI_RSC_EXIT_EQ, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.irq.descriptor_length),
- 2},
-
- /* Reset length to 3 bytes (descriptor with flags byte) */
-
- {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq)},
-
- /*
- * Check if the flags byte is necessary. Not needed if the flags are:
- * ACPI_EDGE_SENSITIVE, ACPI_ACTIVE_HIGH, ACPI_EXCLUSIVE
- */
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.irq.triggering),
- ACPI_EDGE_SENSITIVE},
-
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.irq.polarity),
- ACPI_ACTIVE_HIGH},
-
- {ACPI_RSC_EXIT_NE, ACPI_RSC_COMPARE_VALUE,
- ACPI_RS_OFFSET(data.irq.sharable),
- ACPI_EXCLUSIVE},
-
- /* We can optimize to a 2-byte irq_no_flags() descriptor */
-
- {ACPI_RSC_LENGTH, 0, 0, sizeof(struct aml_resource_irq_noflags)}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_ext_irq
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_ext_irq[9] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_IRQ,
- ACPI_RS_SIZE(struct acpi_resource_extended_irq),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_irq)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_IRQ,
- sizeof(struct aml_resource_extended_irq),
- 0},
-
- /* Flag bits */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.producer_consumer),
- AML_OFFSET(extended_irq.flags),
- 0},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.triggering),
- AML_OFFSET(extended_irq.flags),
- 1},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.polarity),
- AML_OFFSET(extended_irq.flags),
- 2},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.extended_irq.sharable),
- AML_OFFSET(extended_irq.flags),
- 3},
-
- /* IRQ Table length (Byte4) */
-
- {ACPI_RSC_COUNT, ACPI_RS_OFFSET(data.extended_irq.interrupt_count),
- AML_OFFSET(extended_irq.interrupt_count),
- sizeof(u32)}
- ,
-
- /* Copy every IRQ in the table, each is 32 bits */
-
- {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
- AML_OFFSET(extended_irq.interrupts[0]),
- 0}
- ,
-
- /* Optional resource_source (Index and String) */
-
- {ACPI_RSC_SOURCEX, ACPI_RS_OFFSET(data.extended_irq.resource_source),
- ACPI_RS_OFFSET(data.extended_irq.interrupts[0]),
- sizeof(struct aml_resource_extended_irq)}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_dma
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_dma[6] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_DMA,
- ACPI_RS_SIZE(struct acpi_resource_dma),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_dma)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_DMA,
- sizeof(struct aml_resource_dma),
- 0},
-
- /* Flags: transfer preference, bus mastering, channel speed */
-
- {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.transfer),
- AML_OFFSET(dma.flags),
- 0},
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.dma.bus_master),
- AML_OFFSET(dma.flags),
- 2},
-
- {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.dma.type),
- AML_OFFSET(dma.flags),
- 5},
-
- /* DMA channel mask bits */
-
- {ACPI_RSC_BITMASK, ACPI_RS_OFFSET(data.dma.channels[0]),
- AML_OFFSET(dma.dma_channel_mask),
- ACPI_RS_OFFSET(data.dma.channel_count)}
-};
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rslist - Linked list utilities
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rslist")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_convert_aml_to_resources
- *
- * PARAMETERS: acpi_walk_aml_callback
- * resource_ptr - Pointer to the buffer that will
- * contain the output structures
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an AML resource to an internal representation of the
- * resource that is aligned and easier to access.
- *
- ******************************************************************************/
-acpi_status
-acpi_rs_convert_aml_to_resources(u8 * aml,
- u32 length,
- u32 offset, u8 resource_index, void **context)
-{
- struct acpi_resource **resource_ptr =
- ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context);
- struct acpi_resource *resource;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources);
-
- /*
- * Check that the input buffer and all subsequent pointers into it
- * are aligned on a native word boundary. Most important on IA64
- */
- resource = *resource_ptr;
- if (ACPI_IS_MISALIGNED(resource)) {
- ACPI_WARNING((AE_INFO,
- "Misaligned resource pointer %p", resource));
- }
-
- /* Convert the AML byte stream resource to a local resource struct */
-
- status =
- acpi_rs_convert_aml_to_resource(resource,
- ACPI_CAST_PTR(union aml_resource,
- aml),
- acpi_gbl_get_resource_dispatch
- [resource_index]);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not convert AML resource (Type %X)",
- *aml));
- return_ACPI_STATUS(status);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES,
- "Type %.2X, AmlLength %.2X InternalLength %.2X\n",
- acpi_ut_get_resource_type(aml), length,
- resource->length));
-
- /* Point to the next structure in the output buffer */
-
- *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length);
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_convert_resources_to_aml
- *
- * PARAMETERS: Resource - Pointer to the resource linked list
- * aml_size_needed - Calculated size of the byte stream
- * needed from calling acpi_rs_get_aml_length()
- * The size of the output_buffer is
- * guaranteed to be >= aml_size_needed
- * output_buffer - Pointer to the buffer that will
- * contain the byte stream
- *
- * RETURN: Status
- *
- * DESCRIPTION: Takes the resource linked list and parses it, creating a
- * byte stream of resources in the caller's output buffer
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
- acpi_size aml_size_needed, u8 * output_buffer)
-{
- u8 *aml = output_buffer;
- u8 *end_aml = output_buffer + aml_size_needed;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml);
-
- /* Walk the resource descriptor list, convert each descriptor */
-
- while (aml < end_aml) {
-
- /* Validate the (internal) Resource Type */
-
- if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
- ACPI_ERROR((AE_INFO,
- "Invalid descriptor type (%X) in resource list",
- resource->type));
- return_ACPI_STATUS(AE_BAD_DATA);
- }
-
- /* Perform the conversion */
-
- status = acpi_rs_convert_resource_to_aml(resource, ACPI_CAST_PTR(union
- aml_resource,
- aml),
- acpi_gbl_set_resource_dispatch
- [resource->type]);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not convert resource (type %X) to AML",
- resource->type));
- return_ACPI_STATUS(status);
- }
-
- /* Perform final sanity check on the new AML resource descriptor */
-
- status =
- acpi_ut_validate_resource(ACPI_CAST_PTR
- (union aml_resource, aml), NULL);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Check for end-of-list, normal exit */
-
- if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
-
- /* An End Tag indicates the end of the input Resource Template */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Extract the total length of the new descriptor and set the
- * Aml to point to the next (output) resource descriptor
- */
- aml += acpi_ut_get_descriptor_length(aml);
-
- /* Point to the next input resource descriptor */
-
- resource =
- ACPI_ADD_PTR(struct acpi_resource, resource,
- resource->length);
- }
-
- /* Completed buffer, but did not find an end_tag resource descriptor */
-
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsmem24 - Memory resource descriptors
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsmemory")
-
-/*******************************************************************************
- *
- * acpi_rs_convert_memory24
- *
- ******************************************************************************/
-struct acpi_rsconvert_info acpi_rs_convert_memory24[4] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY24,
- ACPI_RS_SIZE(struct acpi_resource_memory24),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory24)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY24,
- sizeof(struct aml_resource_memory24),
- 0},
-
- /* Read/Write bit */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory24.write_protect),
- AML_OFFSET(memory24.flags),
- 0},
- /*
- * These fields are contiguous in both the source and destination:
- * Minimum Base Address
- * Maximum Base Address
- * Address Base Alignment
- * Range Length
- */
- {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.memory24.minimum),
- AML_OFFSET(memory24.minimum),
- 4}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_memory32
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_memory32[4] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY32,
- ACPI_RS_SIZE(struct acpi_resource_memory32),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory32)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY32,
- sizeof(struct aml_resource_memory32),
- 0},
-
- /* Read/Write bit */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory32.write_protect),
- AML_OFFSET(memory32.flags),
- 0},
- /*
- * These fields are contiguous in both the source and destination:
- * Minimum Base Address
- * Maximum Base Address
- * Address Base Alignment
- * Range Length
- */
- {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.memory32.minimum),
- AML_OFFSET(memory32.minimum),
- 4}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_convert_fixed_memory32
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[4] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_MEMORY32,
- ACPI_RS_SIZE(struct acpi_resource_fixed_memory32),
- ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_memory32)},
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_MEMORY32,
- sizeof(struct aml_resource_fixed_memory32),
- 0},
-
- /* Read/Write bit */
-
- {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.fixed_memory32.write_protect),
- AML_OFFSET(fixed_memory32.flags),
- 0},
- /*
- * These fields are contiguous in both the source and destination:
- * Base Address
- * Range Length
- */
- {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.fixed_memory32.address),
- AML_OFFSET(fixed_memory32.address),
- 2}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_get_vendor_small
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
- ACPI_RS_SIZE(struct acpi_resource_vendor),
- ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_small)},
-
- /* Length of the vendor data (byte count) */
-
- {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
- 0,
- sizeof(u8)}
- ,
-
- /* Vendor data */
-
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
- sizeof(struct aml_resource_small_header),
- 0}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_get_vendor_large
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = {
- {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
- ACPI_RS_SIZE(struct acpi_resource_vendor),
- ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_large)},
-
- /* Length of the vendor data (byte count) */
-
- {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
- 0,
- sizeof(u8)}
- ,
-
- /* Vendor data */
-
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
- sizeof(struct aml_resource_large_header),
- 0}
-};
-
-/*******************************************************************************
- *
- * acpi_rs_set_vendor
- *
- ******************************************************************************/
-
-struct acpi_rsconvert_info acpi_rs_set_vendor[7] = {
- /* Default is a small vendor descriptor */
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_SMALL,
- sizeof(struct aml_resource_small_header),
- ACPI_RSC_TABLE_SIZE(acpi_rs_set_vendor)},
-
- /* Get the length and copy the data */
-
- {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
- 0,
- 0},
-
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
- sizeof(struct aml_resource_small_header),
- 0},
-
- /*
- * All done if the Vendor byte length is 7 or less, meaning that it will
- * fit within a small descriptor
- */
- {ACPI_RSC_EXIT_LE, 0, 0, 7},
-
- /* Must create a large vendor descriptor */
-
- {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_LARGE,
- sizeof(struct aml_resource_large_header),
- 0},
-
- {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
- 0,
- 0},
-
- {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
- sizeof(struct aml_resource_large_header),
- 0}
-};
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsmisc - Miscellaneous resource descriptors
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsmisc")
-#define INIT_RESOURCE_TYPE(i) i->resource_offset
-#define INIT_RESOURCE_LENGTH(i) i->aml_offset
-#define INIT_TABLE_LENGTH(i) i->value
-#define COMPARE_OPCODE(i) i->resource_offset
-#define COMPARE_TARGET(i) i->aml_offset
-#define COMPARE_VALUE(i) i->value
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_convert_aml_to_resource
- *
- * PARAMETERS: Resource - Pointer to the resource descriptor
- * Aml - Where the AML descriptor is returned
- * Info - Pointer to appropriate conversion table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
- * internal resource descriptor
- *
- ******************************************************************************/
-acpi_status
-acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
- union aml_resource *aml,
- struct acpi_rsconvert_info *info)
-{
- acpi_rs_length aml_resource_length;
- void *source;
- void *destination;
- char *target;
- u8 count;
- u8 flags_mode = FALSE;
- u16 item_count = 0;
- u16 temp16 = 0;
-
- ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
-
- if (((acpi_size) resource) & 0x3) {
-
- /* Each internal resource struct is expected to be 32-bit aligned */
-
- ACPI_WARNING((AE_INFO,
- "Misaligned resource pointer (get): %p Type %2.2X Len %X",
- resource, resource->type, resource->length));
- }
-
- /* Extract the resource Length field (does not include header length) */
-
- aml_resource_length = acpi_ut_get_resource_length(aml);
-
- /*
- * First table entry must be ACPI_RSC_INITxxx and must contain the
- * table length (# of table entries)
- */
- count = INIT_TABLE_LENGTH(info);
-
- while (count) {
- /*
- * Source is the external AML byte stream buffer,
- * destination is the internal resource descriptor
- */
- source = ACPI_ADD_PTR(void, aml, info->aml_offset);
- destination =
- ACPI_ADD_PTR(void, resource, info->resource_offset);
-
- switch (info->opcode) {
- case ACPI_RSC_INITGET:
- /*
- * Get the resource type and the initial (minimum) length
- */
- ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
- resource->type = INIT_RESOURCE_TYPE(info);
- resource->length = INIT_RESOURCE_LENGTH(info);
- break;
-
- case ACPI_RSC_INITSET:
- break;
-
- case ACPI_RSC_FLAGINIT:
-
- flags_mode = TRUE;
- break;
-
- case ACPI_RSC_1BITFLAG:
- /*
- * Mask and shift the flag bit
- */
- ACPI_SET8(destination) = (u8)
- ((ACPI_GET8(source) >> info->value) & 0x01);
- break;
-
- case ACPI_RSC_2BITFLAG:
- /*
- * Mask and shift the flag bits
- */
- ACPI_SET8(destination) = (u8)
- ((ACPI_GET8(source) >> info->value) & 0x03);
- break;
-
- case ACPI_RSC_COUNT:
-
- item_count = ACPI_GET8(source);
- ACPI_SET8(destination) = (u8) item_count;
-
- resource->length = resource->length +
- (info->value * (item_count - 1));
- break;
-
- case ACPI_RSC_COUNT16:
-
- item_count = aml_resource_length;
- ACPI_SET16(destination) = item_count;
-
- resource->length = resource->length +
- (info->value * (item_count - 1));
- break;
-
- case ACPI_RSC_LENGTH:
-
- resource->length = resource->length + info->value;
- break;
-
- case ACPI_RSC_MOVE8:
- case ACPI_RSC_MOVE16:
- case ACPI_RSC_MOVE32:
- case ACPI_RSC_MOVE64:
- /*
- * Raw data move. Use the Info value field unless item_count has
- * been previously initialized via a COUNT opcode
- */
- if (info->value) {
- item_count = info->value;
- }
- acpi_rs_move_data(destination, source, item_count,
- info->opcode);
- break;
-
- case ACPI_RSC_SET8:
-
- ACPI_MEMSET(destination, info->aml_offset, info->value);
- break;
-
- case ACPI_RSC_DATA8:
-
- target = ACPI_ADD_PTR(char, resource, info->value);
- ACPI_MEMCPY(destination, source, ACPI_GET16(target));
- break;
-
- case ACPI_RSC_ADDRESS:
- /*
- * Common handler for address descriptor flags
- */
- if (!acpi_rs_get_address_common(resource, aml)) {
- return_ACPI_STATUS
- (AE_AML_INVALID_RESOURCE_TYPE);
- }
- break;
-
- case ACPI_RSC_SOURCE:
- /*
- * Optional resource_source (Index and String)
- */
- resource->length +=
- acpi_rs_get_resource_source(aml_resource_length,
- info->value,
- destination, aml, NULL);
- break;
-
- case ACPI_RSC_SOURCEX:
- /*
- * Optional resource_source (Index and String). This is the more
- * complicated case used by the Interrupt() macro
- */
- target =
- ACPI_ADD_PTR(char, resource,
- info->aml_offset + (item_count * 4));
-
- resource->length +=
- acpi_rs_get_resource_source(aml_resource_length,
- (acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
- break;
-
- case ACPI_RSC_BITMASK:
- /*
- * 8-bit encoded bitmask (DMA macro)
- */
- item_count =
- acpi_rs_decode_bitmask(ACPI_GET8(source),
- destination);
- if (item_count) {
- resource->length += (item_count - 1);
- }
-
- target = ACPI_ADD_PTR(char, resource, info->value);
- ACPI_SET8(target) = (u8) item_count;
- break;
-
- case ACPI_RSC_BITMASK16:
- /*
- * 16-bit encoded bitmask (IRQ macro)
- */
- ACPI_MOVE_16_TO_16(&temp16, source);
-
- item_count =
- acpi_rs_decode_bitmask(temp16, destination);
- if (item_count) {
- resource->length += (item_count - 1);
- }
-
- target = ACPI_ADD_PTR(char, resource, info->value);
- ACPI_SET8(target) = (u8) item_count;
- break;
-
- case ACPI_RSC_EXIT_NE:
- /*
- * Control - Exit conversion if not equal
- */
- switch (info->resource_offset) {
- case ACPI_RSC_COMPARE_AML_LENGTH:
- if (aml_resource_length != info->value) {
- goto exit;
- }
- break;
-
- case ACPI_RSC_COMPARE_VALUE:
- if (ACPI_GET8(source) != info->value) {
- goto exit;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Invalid conversion sub-opcode"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- count--;
- info++;
- }
-
- exit:
- if (!flags_mode) {
-
- /* Round the resource struct length up to the next boundary (32 or 64) */
-
- resource->length =
- (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
- }
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_convert_resource_to_aml
- *
- * PARAMETERS: Resource - Pointer to the resource descriptor
- * Aml - Where the AML descriptor is returned
- * Info - Pointer to appropriate conversion table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Convert an internal resource descriptor to the corresponding
- * external AML resource descriptor.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
- union aml_resource *aml,
- struct acpi_rsconvert_info *info)
-{
- void *source = NULL;
- void *destination;
- acpi_rsdesc_size aml_length = 0;
- u8 count;
- u16 temp16 = 0;
- u16 item_count = 0;
-
- ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
-
- /*
- * First table entry must be ACPI_RSC_INITxxx and must contain the
- * table length (# of table entries)
- */
- count = INIT_TABLE_LENGTH(info);
-
- while (count) {
- /*
- * Source is the internal resource descriptor,
- * destination is the external AML byte stream buffer
- */
- source = ACPI_ADD_PTR(void, resource, info->resource_offset);
- destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
-
- switch (info->opcode) {
- case ACPI_RSC_INITSET:
-
- ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
- aml_length = INIT_RESOURCE_LENGTH(info);
- acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
- aml_length, aml);
- break;
-
- case ACPI_RSC_INITGET:
- break;
-
- case ACPI_RSC_FLAGINIT:
- /*
- * Clear the flag byte
- */
- ACPI_SET8(destination) = 0;
- break;
-
- case ACPI_RSC_1BITFLAG:
- /*
- * Mask and shift the flag bit
- */
- ACPI_SET8(destination) |= (u8)
- ((ACPI_GET8(source) & 0x01) << info->value);
- break;
-
- case ACPI_RSC_2BITFLAG:
- /*
- * Mask and shift the flag bits
- */
- ACPI_SET8(destination) |= (u8)
- ((ACPI_GET8(source) & 0x03) << info->value);
- break;
-
- case ACPI_RSC_COUNT:
-
- item_count = ACPI_GET8(source);
- ACPI_SET8(destination) = (u8) item_count;
-
- aml_length =
- (u16) (aml_length +
- (info->value * (item_count - 1)));
- break;
-
- case ACPI_RSC_COUNT16:
-
- item_count = ACPI_GET16(source);
- aml_length = (u16) (aml_length + item_count);
- acpi_rs_set_resource_length(aml_length, aml);
- break;
-
- case ACPI_RSC_LENGTH:
-
- acpi_rs_set_resource_length(info->value, aml);
- break;
-
- case ACPI_RSC_MOVE8:
- case ACPI_RSC_MOVE16:
- case ACPI_RSC_MOVE32:
- case ACPI_RSC_MOVE64:
-
- if (info->value) {
- item_count = info->value;
- }
- acpi_rs_move_data(destination, source, item_count,
- info->opcode);
- break;
-
- case ACPI_RSC_ADDRESS:
-
- /* Set the Resource Type, General Flags, and Type-Specific Flags */
-
- acpi_rs_set_address_common(aml, resource);
- break;
-
- case ACPI_RSC_SOURCEX:
- /*
- * Optional resource_source (Index and String)
- */
- aml_length =
- acpi_rs_set_resource_source(aml, (acpi_rs_length)
- aml_length, source);
- acpi_rs_set_resource_length(aml_length, aml);
- break;
-
- case ACPI_RSC_SOURCE:
- /*
- * Optional resource_source (Index and String). This is the more
- * complicated case used by the Interrupt() macro
- */
- aml_length =
- acpi_rs_set_resource_source(aml, info->value,
- source);
- acpi_rs_set_resource_length(aml_length, aml);
- break;
-
- case ACPI_RSC_BITMASK:
- /*
- * 8-bit encoded bitmask (DMA macro)
- */
- ACPI_SET8(destination) = (u8)
- acpi_rs_encode_bitmask(source,
- *ACPI_ADD_PTR(u8, resource,
- info->value));
- break;
-
- case ACPI_RSC_BITMASK16:
- /*
- * 16-bit encoded bitmask (IRQ macro)
- */
- temp16 = acpi_rs_encode_bitmask(source,
- *ACPI_ADD_PTR(u8,
- resource,
- info->
- value));
- ACPI_MOVE_16_TO_16(destination, &temp16);
- break;
-
- case ACPI_RSC_EXIT_LE:
- /*
- * Control - Exit conversion if less than or equal
- */
- if (item_count <= info->value) {
- goto exit;
- }
- break;
-
- case ACPI_RSC_EXIT_NE:
- /*
- * Control - Exit conversion if not equal
- */
- switch (COMPARE_OPCODE(info)) {
- case ACPI_RSC_COMPARE_VALUE:
-
- if (*ACPI_ADD_PTR(u8, resource,
- COMPARE_TARGET(info)) !=
- COMPARE_VALUE(info)) {
- goto exit;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO,
- "Invalid conversion sub-opcode"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
- break;
-
- case ACPI_RSC_EXIT_EQ:
- /*
- * Control - Exit conversion if equal
- */
- if (*ACPI_ADD_PTR(u8, resource,
- COMPARE_TARGET(info)) ==
- COMPARE_VALUE(info)) {
- goto exit;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- count--;
- info++;
- }
-
- exit:
- return_ACPI_STATUS(AE_OK);
-}
-
-#if 0
-/* Previous resource validations */
-
-if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
- return_ACPI_STATUS(AE_SUPPORT);
-}
-
-if (resource->data.start_dpf.performance_robustness >= 3) {
- return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
-}
-
-if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
- /*
- * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
- * polarity/trigger interrupts are allowed (ACPI spec, section
- * "IRQ Format"), so 0x00 and 0x09 are illegal.
- */
- ACPI_ERROR((AE_INFO,
- "Invalid interrupt polarity/trigger in resource list, %X",
- aml->irq.flags));
- return_ACPI_STATUS(AE_BAD_DATA);
-}
-
-resource->data.extended_irq.interrupt_count = temp8;
-if (temp8 < 1) {
-
- /* Must have at least one IRQ */
-
- return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
-}
-
-if (resource->data.dma.transfer == 0x03) {
- ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
- return_ACPI_STATUS(AE_BAD_DATA);
-}
-#endif
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsutils - Utilities for the resource manager
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acresrc.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsutils")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_decode_bitmask
- *
- * PARAMETERS: Mask - Bitmask to decode
- * List - Where the converted list is returned
- *
- * RETURN: Count of bits set (length of list)
- *
- * DESCRIPTION: Convert a bit mask into a list of values
- *
- ******************************************************************************/
-u8 acpi_rs_decode_bitmask(u16 mask, u8 * list)
-{
- u8 i;
- u8 bit_count;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Decode the mask bits */
-
- for (i = 0, bit_count = 0; mask; i++) {
- if (mask & 0x0001) {
- list[bit_count] = i;
- bit_count++;
- }
-
- mask >>= 1;
- }
-
- return (bit_count);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_encode_bitmask
- *
- * PARAMETERS: List - List of values to encode
- * Count - Length of list
- *
- * RETURN: Encoded bitmask
- *
- * DESCRIPTION: Convert a list of values to an encoded bitmask
- *
- ******************************************************************************/
-
-u16 acpi_rs_encode_bitmask(u8 * list, u8 count)
-{
- u32 i;
- u16 mask;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Encode the list into a single bitmask */
-
- for (i = 0, mask = 0; i < count; i++) {
- mask |= (0x1 << list[i]);
- }
-
- return mask;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_move_data
- *
- * PARAMETERS: Destination - Pointer to the destination descriptor
- * Source - Pointer to the source descriptor
- * item_count - How many items to move
- * move_type - Byte width
- *
- * RETURN: None
- *
- * DESCRIPTION: Move multiple data items from one descriptor to another. Handles
- * alignment issues and endian issues if necessary, as configured
- * via the ACPI_MOVE_* macros. (This is why a memcpy is not used)
- *
- ******************************************************************************/
-
-void
-acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type)
-{
- u32 i;
-
- ACPI_FUNCTION_ENTRY();
-
- /* One move per item */
-
- for (i = 0; i < item_count; i++) {
- switch (move_type) {
- /*
- * For the 8-bit case, we can perform the move all at once
- * since there are no alignment or endian issues
- */
- case ACPI_RSC_MOVE8:
- ACPI_MEMCPY(destination, source, item_count);
- return;
-
- /*
- * 16-, 32-, and 64-bit cases must use the move macros that perform
- * endian conversion and/or accomodate hardware that cannot perform
- * misaligned memory transfers
- */
- case ACPI_RSC_MOVE16:
- ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i],
- &ACPI_CAST_PTR(u16, source)[i]);
- break;
-
- case ACPI_RSC_MOVE32:
- ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i],
- &ACPI_CAST_PTR(u32, source)[i]);
- break;
-
- case ACPI_RSC_MOVE64:
- ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i],
- &ACPI_CAST_PTR(u64, source)[i]);
- break;
-
- default:
- return;
- }
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_set_resource_length
- *
- * PARAMETERS: total_length - Length of the AML descriptor, including
- * the header and length fields.
- * Aml - Pointer to the raw AML descriptor
- *
- * RETURN: None
- *
- * DESCRIPTION: Set the resource_length field of an AML
- * resource descriptor, both Large and Small descriptors are
- * supported automatically. Note: Descriptor Type field must
- * be valid.
- *
- ******************************************************************************/
-
-void
-acpi_rs_set_resource_length(acpi_rsdesc_size total_length,
- union aml_resource *aml)
-{
- acpi_rs_length resource_length;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Length is the total descriptor length minus the header length */
-
- resource_length = (acpi_rs_length)
- (total_length - acpi_ut_get_resource_header_length(aml));
-
- /* Length is stored differently for large and small descriptors */
-
- if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) {
-
- /* Large descriptor -- bytes 1-2 contain the 16-bit length */
-
- ACPI_MOVE_16_TO_16(&aml->large_header.resource_length,
- &resource_length);
- } else {
- /* Small descriptor -- bits 2:0 of byte 0 contain the length */
-
- aml->small_header.descriptor_type = (u8)
-
- /* Clear any existing length, preserving descriptor type bits */
- ((aml->small_header.
- descriptor_type & ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK)
-
- | resource_length);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_set_resource_header
- *
- * PARAMETERS: descriptor_type - Byte to be inserted as the type
- * total_length - Length of the AML descriptor, including
- * the header and length fields.
- * Aml - Pointer to the raw AML descriptor
- *
- * RETURN: None
- *
- * DESCRIPTION: Set the descriptor_type and resource_length fields of an AML
- * resource descriptor, both Large and Small descriptors are
- * supported automatically
- *
- ******************************************************************************/
-
-void
-acpi_rs_set_resource_header(u8 descriptor_type,
- acpi_rsdesc_size total_length,
- union aml_resource *aml)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Set the Resource Type */
-
- aml->small_header.descriptor_type = descriptor_type;
-
- /* Set the Resource Length */
-
- acpi_rs_set_resource_length(total_length, aml);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_strcpy
- *
- * PARAMETERS: Destination - Pointer to the destination string
- * Source - Pointer to the source string
- *
- * RETURN: String length, including NULL terminator
- *
- * DESCRIPTION: Local string copy that returns the string length, saving a
- * strcpy followed by a strlen.
- *
- ******************************************************************************/
-
-static u16 acpi_rs_strcpy(char *destination, char *source)
-{
- u16 i;
-
- ACPI_FUNCTION_ENTRY();
-
- for (i = 0; source[i]; i++) {
- destination[i] = source[i];
- }
-
- destination[i] = 0;
-
- /* Return string length including the NULL terminator */
-
- return ((u16) (i + 1));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_resource_source
- *
- * PARAMETERS: resource_length - Length field of the descriptor
- * minimum_length - Minimum length of the descriptor (minus
- * any optional fields)
- * resource_source - Where the resource_source is returned
- * Aml - Pointer to the raw AML descriptor
- * string_ptr - (optional) where to store the actual
- * resource_source string
- *
- * RETURN: Length of the string plus NULL terminator, rounded up to native
- * word boundary
- *
- * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor
- * to an internal resource descriptor
- *
- ******************************************************************************/
-
-acpi_rs_length
-acpi_rs_get_resource_source(acpi_rs_length resource_length,
- acpi_rs_length minimum_length,
- struct acpi_resource_source * resource_source,
- union aml_resource * aml, char *string_ptr)
-{
- acpi_rsdesc_size total_length;
- u8 *aml_resource_source;
-
- ACPI_FUNCTION_ENTRY();
-
- total_length =
- resource_length + sizeof(struct aml_resource_large_header);
- aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
-
- /*
- * resource_source is present if the length of the descriptor is longer than
- * the minimum length.
- *
- * Note: Some resource descriptors will have an additional null, so
- * we add 1 to the minimum length.
- */
- if (total_length > (acpi_rsdesc_size) (minimum_length + 1)) {
-
- /* Get the resource_source_index */
-
- resource_source->index = aml_resource_source[0];
-
- resource_source->string_ptr = string_ptr;
- if (!string_ptr) {
- /*
- * String destination pointer is not specified; Set the String
- * pointer to the end of the current resource_source structure.
- */
- resource_source->string_ptr =
- ACPI_ADD_PTR(char, resource_source,
- sizeof(struct acpi_resource_source));
- }
-
- /*
- * In order for the Resource length to be a multiple of the native
- * word, calculate the length of the string (+1 for NULL terminator)
- * and expand to the next word multiple.
- *
- * Zero the entire area of the buffer.
- */
- total_length = (u32)
- ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1;
- total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
-
- ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
-
- /* Copy the resource_source string to the destination */
-
- resource_source->string_length =
- acpi_rs_strcpy(resource_source->string_ptr,
- ACPI_CAST_PTR(char,
- &aml_resource_source[1]));
-
- return ((acpi_rs_length) total_length);
- }
-
- /* resource_source is not present */
-
- resource_source->index = 0;
- resource_source->string_length = 0;
- resource_source->string_ptr = NULL;
- return (0);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_set_resource_source
- *
- * PARAMETERS: Aml - Pointer to the raw AML descriptor
- * minimum_length - Minimum length of the descriptor (minus
- * any optional fields)
- * resource_source - Internal resource_source
-
- *
- * RETURN: Total length of the AML descriptor
- *
- * DESCRIPTION: Convert an optional resource_source from internal format to a
- * raw AML resource descriptor
- *
- ******************************************************************************/
-
-acpi_rsdesc_size
-acpi_rs_set_resource_source(union aml_resource * aml,
- acpi_rs_length minimum_length,
- struct acpi_resource_source * resource_source)
-{
- u8 *aml_resource_source;
- acpi_rsdesc_size descriptor_length;
-
- ACPI_FUNCTION_ENTRY();
-
- descriptor_length = minimum_length;
-
- /* Non-zero string length indicates presence of a resource_source */
-
- if (resource_source->string_length) {
-
- /* Point to the end of the AML descriptor */
-
- aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length);
-
- /* Copy the resource_source_index */
-
- aml_resource_source[0] = (u8) resource_source->index;
-
- /* Copy the resource_source string */
-
- ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]),
- resource_source->string_ptr);
-
- /*
- * Add the length of the string (+ 1 for null terminator) to the
- * final descriptor length
- */
- descriptor_length +=
- ((acpi_rsdesc_size) resource_source->string_length + 1);
- }
-
- /* Return the new total length of the AML descriptor */
-
- return (descriptor_length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_prt_method_data
- *
- * PARAMETERS: Node - Device node
- * ret_buffer - Pointer to a buffer structure for the
- * results
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get the _PRT value of an object
- * contained in an object specified by the handle passed in
- *
- * If the function fails an appropriate status will be returned
- * and the contents of the callers buffer is undefined.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_get_prt_method_data(struct acpi_namespace_node * node,
- struct acpi_buffer * ret_buffer)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(rs_get_prt_method_data);
-
- /* Parameters guaranteed valid by caller */
-
- /* Execute the method, no parameters */
-
- status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT,
- ACPI_BTYPE_PACKAGE, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Create a resource linked list from the byte stream buffer that comes
- * back from the _CRS method execution.
- */
- status = acpi_rs_create_pci_routing_table(obj_desc, ret_buffer);
-
- /* On exit, we must delete the object returned by evaluate_object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_crs_method_data
- *
- * PARAMETERS: Node - Device node
- * ret_buffer - Pointer to a buffer structure for the
- * results
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get the _CRS value of an object
- * contained in an object specified by the handle passed in
- *
- * If the function fails an appropriate status will be returned
- * and the contents of the callers buffer is undefined.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_get_crs_method_data(struct acpi_namespace_node *node,
- struct acpi_buffer *ret_buffer)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(rs_get_crs_method_data);
-
- /* Parameters guaranteed valid by caller */
-
- /* Execute the method, no parameters */
-
- status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS,
- ACPI_BTYPE_BUFFER, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Make the call to create a resource linked list from the
- * byte stream buffer that comes back from the _CRS method
- * execution.
- */
- status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
-
- /* On exit, we must delete the object returned by evaluate_object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_prs_method_data
- *
- * PARAMETERS: Node - Device node
- * ret_buffer - Pointer to a buffer structure for the
- * results
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get the _PRS value of an object
- * contained in an object specified by the handle passed in
- *
- * If the function fails an appropriate status will be returned
- * and the contents of the callers buffer is undefined.
- *
- ******************************************************************************/
-
-#ifdef ACPI_FUTURE_USAGE
-acpi_status
-acpi_rs_get_prs_method_data(struct acpi_namespace_node *node,
- struct acpi_buffer *ret_buffer)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(rs_get_prs_method_data);
-
- /* Parameters guaranteed valid by caller */
-
- /* Execute the method, no parameters */
-
- status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS,
- ACPI_BTYPE_BUFFER, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Make the call to create a resource linked list from the
- * byte stream buffer that comes back from the _CRS method
- * execution.
- */
- status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
-
- /* On exit, we must delete the object returned by evaluate_object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-#endif /* ACPI_FUTURE_USAGE */
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_get_method_data
- *
- * PARAMETERS: Handle - Handle to the containing object
- * Path - Path to method, relative to Handle
- * ret_buffer - Pointer to a buffer structure for the
- * results
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get the _CRS or _PRS value of an
- * object contained in an object specified by the handle passed in
- *
- * If the function fails an appropriate status will be returned
- * and the contents of the callers buffer is undefined.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_get_method_data(acpi_handle handle,
- char *path, struct acpi_buffer *ret_buffer)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(rs_get_method_data);
-
- /* Parameters guaranteed valid by caller */
-
- /* Execute the method, no parameters */
-
- status =
- acpi_ut_evaluate_object(handle, path, ACPI_BTYPE_BUFFER, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Make the call to create a resource linked list from the
- * byte stream buffer that comes back from the method
- * execution.
- */
- status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
-
- /* On exit, we must delete the object returned by evaluate_object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_set_srs_method_data
- *
- * PARAMETERS: Node - Device node
- * in_buffer - Pointer to a buffer structure of the
- * parameter
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to set the _SRS of an object contained
- * in an object specified by the handle passed in
- *
- * If the function fails an appropriate status will be returned
- * and the contents of the callers buffer is undefined.
- *
- * Note: Parameters guaranteed valid by caller
- *
- ******************************************************************************/
-
-acpi_status
-acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
- struct acpi_buffer *in_buffer)
-{
- struct acpi_evaluate_info *info;
- union acpi_operand_object *args[2];
- acpi_status status;
- struct acpi_buffer buffer;
-
- ACPI_FUNCTION_TRACE(rs_set_srs_method_data);
-
- /* Allocate and initialize the evaluation information block */
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- info->prefix_node = node;
- info->pathname = METHOD_NAME__SRS;
- info->parameters = args;
- info->flags = ACPI_IGNORE_RETURN_VALUE;
-
- /*
- * The in_buffer parameter will point to a linked list of
- * resource parameters. It needs to be formatted into a
- * byte stream to be sent in as an input parameter to _SRS
- *
- * Convert the linked list into a byte stream
- */
- buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
- status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer);
- if (ACPI_FAILURE(status)) {
- goto cleanup;
- }
-
- /* Create and initialize the method parameter object */
-
- args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
- if (!args[0]) {
- /*
- * Must free the buffer allocated above (otherwise it is freed
- * later)
- */
- ACPI_FREE(buffer.pointer);
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- args[0]->buffer.length = (u32) buffer.length;
- args[0]->buffer.pointer = buffer.pointer;
- args[0]->common.flags = AOPOBJ_DATA_VALID;
- args[1] = NULL;
-
- /* Execute the method, no return value is expected */
-
- status = acpi_ns_evaluate(info);
-
- /* Clean up and return the status from acpi_ns_evaluate */
-
- acpi_ut_remove_reference(args[0]);
-
- cleanup:
- ACPI_FREE(info);
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: rsxface - Public interfaces to the resource manager
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acresrc.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_RESOURCES
-ACPI_MODULE_NAME("rsxface")
-
-/* Local macros for 16,32-bit to 64-bit conversion */
-#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field)
-#define ACPI_COPY_ADDRESS(out, in) \
- ACPI_COPY_FIELD(out, in, resource_type); \
- ACPI_COPY_FIELD(out, in, producer_consumer); \
- ACPI_COPY_FIELD(out, in, decode); \
- ACPI_COPY_FIELD(out, in, min_address_fixed); \
- ACPI_COPY_FIELD(out, in, max_address_fixed); \
- ACPI_COPY_FIELD(out, in, info); \
- ACPI_COPY_FIELD(out, in, granularity); \
- ACPI_COPY_FIELD(out, in, minimum); \
- ACPI_COPY_FIELD(out, in, maximum); \
- ACPI_COPY_FIELD(out, in, translation_offset); \
- ACPI_COPY_FIELD(out, in, address_length); \
- ACPI_COPY_FIELD(out, in, resource_source);
-/* Local prototypes */
-static acpi_status
-acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context);
-
-static acpi_status
-acpi_rs_validate_parameters(acpi_handle device_handle,
- struct acpi_buffer *buffer,
- struct acpi_namespace_node **return_node);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_validate_parameters
- *
- * PARAMETERS: device_handle - Handle to a device
- * Buffer - Pointer to a data buffer
- * return_node - Pointer to where the device node is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Common parameter validation for resource interfaces
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_rs_validate_parameters(acpi_handle device_handle,
- struct acpi_buffer *buffer,
- struct acpi_namespace_node **return_node)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(rs_validate_parameters);
-
- /*
- * Must have a valid handle to an ACPI device
- */
- if (!device_handle) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- node = acpi_ns_map_handle_to_node(device_handle);
- if (!node) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (node->type != ACPI_TYPE_DEVICE) {
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /*
- * Validate the user buffer object
- *
- * if there is a non-zero buffer length we also need a valid pointer in
- * the buffer. If it's a zero buffer length, we'll be returning the
- * needed buffer size (later), so keep going.
- */
- status = acpi_ut_validate_buffer(buffer);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- *return_node = node;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_irq_routing_table
- *
- * PARAMETERS: device_handle - Handle to the Bus device we are querying
- * ret_buffer - Pointer to a buffer to receive the
- * current resources for the device
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get the IRQ routing table for a
- * specific bus. The caller must first acquire a handle for the
- * desired bus. The routine table is placed in the buffer pointed
- * to by the ret_buffer variable parameter.
- *
- * If the function fails an appropriate status will be returned
- * and the value of ret_buffer is undefined.
- *
- * This function attempts to execute the _PRT method contained in
- * the object indicated by the passed device_handle.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_get_irq_routing_table(acpi_handle device_handle,
- struct acpi_buffer *ret_buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table);
-
- /* Validate parameters then dispatch to internal routine */
-
- status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_rs_get_prt_method_data(node, ret_buffer);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_current_resources
- *
- * PARAMETERS: device_handle - Handle to the device object for the
- * device we are querying
- * ret_buffer - Pointer to a buffer to receive the
- * current resources for the device
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get the current resources for a
- * specific device. The caller must first acquire a handle for
- * the desired device. The resource data is placed in the buffer
- * pointed to by the ret_buffer variable parameter.
- *
- * If the function fails an appropriate status will be returned
- * and the value of ret_buffer is undefined.
- *
- * This function attempts to execute the _CRS method contained in
- * the object indicated by the passed device_handle.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_current_resources(acpi_handle device_handle,
- struct acpi_buffer *ret_buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(acpi_get_current_resources);
-
- /* Validate parameters then dispatch to internal routine */
-
- status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_rs_get_crs_method_data(node, ret_buffer);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_current_resources)
-#ifdef ACPI_FUTURE_USAGE
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_possible_resources
- *
- * PARAMETERS: device_handle - Handle to the device object for the
- * device we are querying
- * ret_buffer - Pointer to a buffer to receive the
- * resources for the device
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to get a list of the possible resources
- * for a specific device. The caller must first acquire a handle
- * for the desired device. The resource data is placed in the
- * buffer pointed to by the ret_buffer variable.
- *
- * If the function fails an appropriate status will be returned
- * and the value of ret_buffer is undefined.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_possible_resources(acpi_handle device_handle,
- struct acpi_buffer *ret_buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(acpi_get_possible_resources);
-
- /* Validate parameters then dispatch to internal routine */
-
- status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_rs_get_prs_method_data(node, ret_buffer);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
-#endif /* ACPI_FUTURE_USAGE */
-/*******************************************************************************
- *
- * FUNCTION: acpi_set_current_resources
- *
- * PARAMETERS: device_handle - Handle to the device object for the
- * device we are setting resources
- * in_buffer - Pointer to a buffer containing the
- * resources to be set for the device
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to set the current resources for a
- * specific device. The caller must first acquire a handle for
- * the desired device. The resource data is passed to the routine
- * the buffer pointed to by the in_buffer variable.
- *
- ******************************************************************************/
-acpi_status
-acpi_set_current_resources(acpi_handle device_handle,
- struct acpi_buffer *in_buffer)
-{
- acpi_status status;
- struct acpi_namespace_node *node;
-
- ACPI_FUNCTION_TRACE(acpi_set_current_resources);
-
- /* Validate the buffer, don't allow zero length */
-
- if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Validate parameters then dispatch to internal routine */
-
- status = acpi_rs_validate_parameters(device_handle, in_buffer, &node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- status = acpi_rs_set_srs_method_data(node, in_buffer);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_current_resources)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_resource_to_address64
- *
- * PARAMETERS: Resource - Pointer to a resource
- * Out - Pointer to the users's return buffer
- * (a struct acpi_resource_address64)
- *
- * RETURN: Status
- *
- * DESCRIPTION: If the resource is an address16, address32, or address64,
- * copy it to the address64 return buffer. This saves the
- * caller from having to duplicate code for different-sized
- * addresses.
- *
- ******************************************************************************/
-acpi_status
-acpi_resource_to_address64(struct acpi_resource *resource,
- struct acpi_resource_address64 *out)
-{
- struct acpi_resource_address16 *address16;
- struct acpi_resource_address32 *address32;
-
- if (!resource || !out) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Convert 16 or 32 address descriptor to 64 */
-
- switch (resource->type) {
- case ACPI_RESOURCE_TYPE_ADDRESS16:
-
- address16 = (struct acpi_resource_address16 *)&resource->data;
- ACPI_COPY_ADDRESS(out, address16);
- break;
-
- case ACPI_RESOURCE_TYPE_ADDRESS32:
-
- address32 = (struct acpi_resource_address32 *)&resource->data;
- ACPI_COPY_ADDRESS(out, address32);
- break;
-
- case ACPI_RESOURCE_TYPE_ADDRESS64:
-
- /* Simple copy for 64 bit source */
-
- ACPI_MEMCPY(out, &resource->data,
- sizeof(struct acpi_resource_address64));
- break;
-
- default:
- return (AE_BAD_PARAMETER);
- }
-
- return (AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_resource_to_address64)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_vendor_resource
- *
- * PARAMETERS: device_handle - Handle for the parent device object
- * Name - Method name for the parent resource
- * (METHOD_NAME__CRS or METHOD_NAME__PRS)
- * Uuid - Pointer to the UUID to be matched.
- * includes both subtype and 16-byte UUID
- * ret_buffer - Where the vendor resource is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk a resource template for the specified evice to find a
- * vendor-defined resource that matches the supplied UUID and
- * UUID subtype. Returns a struct acpi_resource of type Vendor.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_vendor_resource(acpi_handle device_handle,
- char *name,
- struct acpi_vendor_uuid * uuid,
- struct acpi_buffer * ret_buffer)
-{
- struct acpi_vendor_walk_info info;
- acpi_status status;
-
- /* Other parameters are validated by acpi_walk_resources */
-
- if (!uuid || !ret_buffer) {
- return (AE_BAD_PARAMETER);
- }
-
- info.uuid = uuid;
- info.buffer = ret_buffer;
- info.status = AE_NOT_EXIST;
-
- /* Walk the _CRS or _PRS resource list for this device */
-
- status =
- acpi_walk_resources(device_handle, name,
- acpi_rs_match_vendor_resource, &info);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- return (info.status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_rs_match_vendor_resource
- *
- * PARAMETERS: acpi_walk_resource_callback
- *
- * RETURN: Status
- *
- * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID
- *
- ******************************************************************************/
-static acpi_status
-acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
-{
- struct acpi_vendor_walk_info *info = context;
- struct acpi_resource_vendor_typed *vendor;
- struct acpi_buffer *buffer;
- acpi_status status;
-
- /* Ignore all descriptors except Vendor */
-
- if (resource->type != ACPI_RESOURCE_TYPE_VENDOR) {
- return (AE_OK);
- }
-
- vendor = &resource->data.vendor_typed;
-
- /*
- * For a valid match, these conditions must hold:
- *
- * 1) Length of descriptor data must be at least as long as a UUID struct
- * 2) The UUID subtypes must match
- * 3) The UUID data must match
- */
- if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) ||
- (vendor->uuid_subtype != info->uuid->subtype) ||
- (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
- return (AE_OK);
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- buffer = info->buffer;
- status = acpi_ut_initialize_buffer(buffer, resource->length);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- /* Found the correct resource, copy and return it */
-
- ACPI_MEMCPY(buffer->pointer, resource, resource->length);
- buffer->length = resource->length;
-
- /* Found the desired descriptor, terminate resource walk */
-
- info->status = AE_OK;
- return (AE_CTRL_TERMINATE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_walk_resources
- *
- * PARAMETERS: device_handle - Handle to the device object for the
- * device we are querying
- * Name - Method name of the resources we want
- * (METHOD_NAME__CRS or METHOD_NAME__PRS)
- * user_function - Called for each resource
- * Context - Passed to user_function
- *
- * RETURN: Status
- *
- * DESCRIPTION: Retrieves the current or possible resource list for the
- * specified device. The user_function is called once for
- * each resource in the list.
- *
- ******************************************************************************/
-acpi_status
-acpi_walk_resources(acpi_handle device_handle,
- char *name,
- acpi_walk_resource_callback user_function, void *context)
-{
- acpi_status status;
- struct acpi_buffer buffer;
- struct acpi_resource *resource;
- struct acpi_resource *resource_end;
-
- ACPI_FUNCTION_TRACE(acpi_walk_resources);
-
- /* Parameter validation */
-
- if (!device_handle || !user_function || !name ||
- (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
- !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- /* Get the _CRS or _PRS resource list */
-
- buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
- status = acpi_rs_get_method_data(device_handle, name, &buffer);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Buffer now contains the resource list */
-
- resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer);
- resource_end =
- ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length);
-
- /* Walk the resource list until the end_tag is found (or buffer end) */
-
- while (resource < resource_end) {
-
- /* Sanity check the resource */
-
- if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
- status = AE_AML_INVALID_RESOURCE_TYPE;
- break;
- }
-
- /* Invoke the user function, abort on any error returned */
-
- status = user_function(resource, context);
- if (ACPI_FAILURE(status)) {
- if (status == AE_CTRL_TERMINATE) {
-
- /* This is an OK termination by the user function */
-
- status = AE_OK;
- }
- break;
- }
-
- /* end_tag indicates end-of-list */
-
- if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
- break;
- }
-
- /* Get the next resource descriptor */
-
- resource =
- ACPI_ADD_PTR(struct acpi_resource, resource,
- resource->length);
- }
-
- ACPI_FREE(buffer.pointer);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_walk_resources)
--- /dev/null
+
+extern u8 sleep_states[];
+extern int acpi_suspend (u32 state);
+
+extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
+extern void acpi_enable_wakeup_device(u8 sleep_state);
+extern void acpi_disable_wakeup_device(u8 sleep_state);
+++ /dev/null
-obj-y := wakeup.o
-obj-y += main.o
-obj-$(CONFIG_ACPI_SLEEP) += proc.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/*
- * sleep.c - ACPI sleep support.
- *
- * Copyright (c) 2005 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
- * Copyright (c) 2004 David Shaohua Li <shaohua.li@intel.com>
- * Copyright (c) 2000-2003 Patrick Mochel
- * Copyright (c) 2003 Open Source Development Lab
- *
- * This file is released under the GPLv2.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/dmi.h>
-#include <linux/device.h>
-#include <linux/suspend.h>
-#include <linux/reboot.h>
-
-#include <asm/io.h>
-
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-#include "sleep.h"
-
-u8 sleep_states[ACPI_S_STATE_COUNT];
-
-static void acpi_sleep_tts_switch(u32 acpi_state)
-{
- union acpi_object in_arg = { ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &in_arg };
- acpi_status status = AE_OK;
-
- in_arg.integer.value = acpi_state;
- status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- /*
- * OS can't evaluate the _TTS object correctly. Some warning
- * message will be printed. But it won't break anything.
- */
- printk(KERN_NOTICE "Failure in evaluating _TTS object\n");
- }
-}
-
-static int tts_notify_reboot(struct notifier_block *this,
- unsigned long code, void *x)
-{
- acpi_sleep_tts_switch(ACPI_STATE_S5);
- return NOTIFY_DONE;
-}
-
-static struct notifier_block tts_notifier = {
- .notifier_call = tts_notify_reboot,
- .next = NULL,
- .priority = 0,
-};
-
-static int acpi_sleep_prepare(u32 acpi_state)
-{
-#ifdef CONFIG_ACPI_SLEEP
- /* do we have a wakeup address for S2 and S3? */
- if (acpi_state == ACPI_STATE_S3) {
- if (!acpi_wakeup_address) {
- return -EFAULT;
- }
- acpi_set_firmware_waking_vector(
- (acpi_physical_address)acpi_wakeup_address);
-
- }
- ACPI_FLUSH_CPU_CACHE();
- acpi_enable_wakeup_device_prep(acpi_state);
-#endif
- printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
- acpi_state);
- acpi_enter_sleep_state_prep(acpi_state);
- return 0;
-}
-
-#ifdef CONFIG_ACPI_SLEEP
-static u32 acpi_target_sleep_state = ACPI_STATE_S0;
-/*
- * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
- * user to request that behavior by using the 'acpi_old_suspend_ordering'
- * kernel command line option that causes the following variable to be set.
- */
-static bool old_suspend_ordering;
-
-void __init acpi_old_suspend_ordering(void)
-{
- old_suspend_ordering = true;
-}
-
-/*
- * According to the ACPI specification the BIOS should make sure that ACPI is
- * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still,
- * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
- * on such systems during resume. Unfortunately that doesn't help in
- * particularly pathological cases in which SCI_EN has to be set directly on
- * resume, although the specification states very clearly that this flag is
- * owned by the hardware. The set_sci_en_on_resume variable will be set in such
- * cases.
- */
-static bool set_sci_en_on_resume;
-
-/**
- * acpi_pm_disable_gpes - Disable the GPEs.
- */
-static int acpi_pm_disable_gpes(void)
-{
- acpi_disable_all_gpes();
- return 0;
-}
-
-/**
- * __acpi_pm_prepare - Prepare the platform to enter the target state.
- *
- * If necessary, set the firmware waking vector and do arch-specific
- * nastiness to get the wakeup code to the waking vector.
- */
-static int __acpi_pm_prepare(void)
-{
- int error = acpi_sleep_prepare(acpi_target_sleep_state);
-
- if (error)
- acpi_target_sleep_state = ACPI_STATE_S0;
- return error;
-}
-
-/**
- * acpi_pm_prepare - Prepare the platform to enter the target sleep
- * state and disable the GPEs.
- */
-static int acpi_pm_prepare(void)
-{
- int error = __acpi_pm_prepare();
-
- if (!error)
- acpi_disable_all_gpes();
- return error;
-}
-
-/**
- * acpi_pm_finish - Instruct the platform to leave a sleep state.
- *
- * This is called after we wake back up (or if entering the sleep state
- * failed).
- */
-static void acpi_pm_finish(void)
-{
- u32 acpi_state = acpi_target_sleep_state;
-
- if (acpi_state == ACPI_STATE_S0)
- return;
-
- printk(KERN_INFO PREFIX "Waking up from system sleep state S%d\n",
- acpi_state);
- acpi_disable_wakeup_device(acpi_state);
- acpi_leave_sleep_state(acpi_state);
-
- /* reset firmware waking vector */
- acpi_set_firmware_waking_vector((acpi_physical_address) 0);
-
- acpi_target_sleep_state = ACPI_STATE_S0;
-}
-
-/**
- * acpi_pm_end - Finish up suspend sequence.
- */
-static void acpi_pm_end(void)
-{
- /*
- * This is necessary in case acpi_pm_finish() is not called during a
- * failing transition to a sleep state.
- */
- acpi_target_sleep_state = ACPI_STATE_S0;
- acpi_sleep_tts_switch(acpi_target_sleep_state);
-}
-#else /* !CONFIG_ACPI_SLEEP */
-#define acpi_target_sleep_state ACPI_STATE_S0
-#endif /* CONFIG_ACPI_SLEEP */
-
-#ifdef CONFIG_SUSPEND
-extern void do_suspend_lowlevel(void);
-
-static u32 acpi_suspend_states[] = {
- [PM_SUSPEND_ON] = ACPI_STATE_S0,
- [PM_SUSPEND_STANDBY] = ACPI_STATE_S1,
- [PM_SUSPEND_MEM] = ACPI_STATE_S3,
- [PM_SUSPEND_MAX] = ACPI_STATE_S5
-};
-
-/**
- * acpi_suspend_begin - Set the target system sleep state to the state
- * associated with given @pm_state, if supported.
- */
-static int acpi_suspend_begin(suspend_state_t pm_state)
-{
- u32 acpi_state = acpi_suspend_states[pm_state];
- int error = 0;
-
- if (sleep_states[acpi_state]) {
- acpi_target_sleep_state = acpi_state;
- acpi_sleep_tts_switch(acpi_target_sleep_state);
- } else {
- printk(KERN_ERR "ACPI does not support this state: %d\n",
- pm_state);
- error = -ENOSYS;
- }
- return error;
-}
-
-/**
- * acpi_suspend_enter - Actually enter a sleep state.
- * @pm_state: ignored
- *
- * Flush caches and go to sleep. For STR we have to call arch-specific
- * assembly, which in turn call acpi_enter_sleep_state().
- * It's unfortunate, but it works. Please fix if you're feeling frisky.
- */
-static int acpi_suspend_enter(suspend_state_t pm_state)
-{
- acpi_status status = AE_OK;
- unsigned long flags = 0;
- u32 acpi_state = acpi_target_sleep_state;
-
- ACPI_FLUSH_CPU_CACHE();
-
- /* Do arch specific saving of state. */
- if (acpi_state == ACPI_STATE_S3) {
- int error = acpi_save_state_mem();
-
- if (error)
- return error;
- }
-
- local_irq_save(flags);
- acpi_enable_wakeup_device(acpi_state);
- switch (acpi_state) {
- case ACPI_STATE_S1:
- barrier();
- status = acpi_enter_sleep_state(acpi_state);
- break;
-
- case ACPI_STATE_S3:
- do_suspend_lowlevel();
- break;
- }
-
- /* If ACPI is not enabled by the BIOS, we need to enable it here. */
- if (set_sci_en_on_resume)
- acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
- else
- acpi_enable();
-
- /* Reprogram control registers and execute _BFS */
- acpi_leave_sleep_state_prep(acpi_state);
-
- /* ACPI 3.0 specs (P62) says that it's the responsibility
- * of the OSPM to clear the status bit [ implying that the
- * POWER_BUTTON event should not reach userspace ]
- */
- if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3))
- acpi_clear_event(ACPI_EVENT_POWER_BUTTON);
-
- /*
- * Disable and clear GPE status before interrupt is enabled. Some GPEs
- * (like wakeup GPE) haven't handler, this can avoid such GPE misfire.
- * acpi_leave_sleep_state will reenable specific GPEs later
- */
- acpi_disable_all_gpes();
-
- local_irq_restore(flags);
- printk(KERN_DEBUG "Back to C!\n");
-
- /* restore processor state */
- if (acpi_state == ACPI_STATE_S3)
- acpi_restore_state_mem();
-
- return ACPI_SUCCESS(status) ? 0 : -EFAULT;
-}
-
-static int acpi_suspend_state_valid(suspend_state_t pm_state)
-{
- u32 acpi_state;
-
- switch (pm_state) {
- case PM_SUSPEND_ON:
- case PM_SUSPEND_STANDBY:
- case PM_SUSPEND_MEM:
- acpi_state = acpi_suspend_states[pm_state];
-
- return sleep_states[acpi_state];
- default:
- return 0;
- }
-}
-
-static struct platform_suspend_ops acpi_suspend_ops = {
- .valid = acpi_suspend_state_valid,
- .begin = acpi_suspend_begin,
- .prepare = acpi_pm_prepare,
- .enter = acpi_suspend_enter,
- .finish = acpi_pm_finish,
- .end = acpi_pm_end,
-};
-
-/**
- * acpi_suspend_begin_old - Set the target system sleep state to the
- * state associated with given @pm_state, if supported, and
- * execute the _PTS control method. This function is used if the
- * pre-ACPI 2.0 suspend ordering has been requested.
- */
-static int acpi_suspend_begin_old(suspend_state_t pm_state)
-{
- int error = acpi_suspend_begin(pm_state);
-
- if (!error)
- error = __acpi_pm_prepare();
- return error;
-}
-
-/*
- * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
- * been requested.
- */
-static struct platform_suspend_ops acpi_suspend_ops_old = {
- .valid = acpi_suspend_state_valid,
- .begin = acpi_suspend_begin_old,
- .prepare = acpi_pm_disable_gpes,
- .enter = acpi_suspend_enter,
- .finish = acpi_pm_finish,
- .end = acpi_pm_end,
- .recover = acpi_pm_finish,
-};
-
-static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
-{
- old_suspend_ordering = true;
- return 0;
-}
-
-static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d)
-{
- set_sci_en_on_resume = true;
- return 0;
-}
-
-static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
- {
- .callback = init_old_suspend_ordering,
- .ident = "Abit KN9 (nForce4 variant)",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
- DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
- },
- },
- {
- .callback = init_old_suspend_ordering,
- .ident = "HP xw4600 Workstation",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
- },
- },
- {
- .callback = init_set_sci_en_on_resume,
- .ident = "Apple MacBook 1,1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
- },
- },
- {
- .callback = init_set_sci_en_on_resume,
- .ident = "Apple MacMini 1,1",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
- },
- },
- {},
-};
-#endif /* CONFIG_SUSPEND */
-
-#ifdef CONFIG_HIBERNATION
-static unsigned long s4_hardware_signature;
-static struct acpi_table_facs *facs;
-static bool nosigcheck;
-
-void __init acpi_no_s4_hw_signature(void)
-{
- nosigcheck = true;
-}
-
-static int acpi_hibernation_begin(void)
-{
- acpi_target_sleep_state = ACPI_STATE_S4;
- acpi_sleep_tts_switch(acpi_target_sleep_state);
- return 0;
-}
-
-static int acpi_hibernation_enter(void)
-{
- acpi_status status = AE_OK;
- unsigned long flags = 0;
-
- ACPI_FLUSH_CPU_CACHE();
-
- local_irq_save(flags);
- acpi_enable_wakeup_device(ACPI_STATE_S4);
- /* This shouldn't return. If it returns, we have a problem */
- status = acpi_enter_sleep_state(ACPI_STATE_S4);
- /* Reprogram control registers and execute _BFS */
- acpi_leave_sleep_state_prep(ACPI_STATE_S4);
- local_irq_restore(flags);
-
- return ACPI_SUCCESS(status) ? 0 : -EFAULT;
-}
-
-static void acpi_hibernation_leave(void)
-{
- /*
- * If ACPI is not enabled by the BIOS and the boot kernel, we need to
- * enable it here.
- */
- acpi_enable();
- /* Reprogram control registers and execute _BFS */
- acpi_leave_sleep_state_prep(ACPI_STATE_S4);
- /* Check the hardware signature */
- if (facs && s4_hardware_signature != facs->hardware_signature) {
- printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
- "cannot resume!\n");
- panic("ACPI S4 hardware signature mismatch");
- }
-}
-
-static void acpi_pm_enable_gpes(void)
-{
- acpi_enable_all_runtime_gpes();
-}
-
-static struct platform_hibernation_ops acpi_hibernation_ops = {
- .begin = acpi_hibernation_begin,
- .end = acpi_pm_end,
- .pre_snapshot = acpi_pm_prepare,
- .finish = acpi_pm_finish,
- .prepare = acpi_pm_prepare,
- .enter = acpi_hibernation_enter,
- .leave = acpi_hibernation_leave,
- .pre_restore = acpi_pm_disable_gpes,
- .restore_cleanup = acpi_pm_enable_gpes,
-};
-
-/**
- * acpi_hibernation_begin_old - Set the target system sleep state to
- * ACPI_STATE_S4 and execute the _PTS control method. This
- * function is used if the pre-ACPI 2.0 suspend ordering has been
- * requested.
- */
-static int acpi_hibernation_begin_old(void)
-{
- int error;
- /*
- * The _TTS object should always be evaluated before the _PTS object.
- * When the old_suspended_ordering is true, the _PTS object is
- * evaluated in the acpi_sleep_prepare.
- */
- acpi_sleep_tts_switch(ACPI_STATE_S4);
-
- error = acpi_sleep_prepare(ACPI_STATE_S4);
-
- if (!error)
- acpi_target_sleep_state = ACPI_STATE_S4;
- return error;
-}
-
-/*
- * The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
- * been requested.
- */
-static struct platform_hibernation_ops acpi_hibernation_ops_old = {
- .begin = acpi_hibernation_begin_old,
- .end = acpi_pm_end,
- .pre_snapshot = acpi_pm_disable_gpes,
- .finish = acpi_pm_finish,
- .prepare = acpi_pm_disable_gpes,
- .enter = acpi_hibernation_enter,
- .leave = acpi_hibernation_leave,
- .pre_restore = acpi_pm_disable_gpes,
- .restore_cleanup = acpi_pm_enable_gpes,
- .recover = acpi_pm_finish,
-};
-#endif /* CONFIG_HIBERNATION */
-
-int acpi_suspend(u32 acpi_state)
-{
- suspend_state_t states[] = {
- [1] = PM_SUSPEND_STANDBY,
- [3] = PM_SUSPEND_MEM,
- [5] = PM_SUSPEND_MAX
- };
-
- if (acpi_state < 6 && states[acpi_state])
- return pm_suspend(states[acpi_state]);
- if (acpi_state == 4)
- return hibernate();
- return -EINVAL;
-}
-
-#ifdef CONFIG_PM_SLEEP
-/**
- * acpi_pm_device_sleep_state - return preferred power state of ACPI device
- * in the system sleep state given by %acpi_target_sleep_state
- * @dev: device to examine; its driver model wakeup flags control
- * whether it should be able to wake up the system
- * @d_min_p: used to store the upper limit of allowed states range
- * Return value: preferred power state of the device on success, -ENODEV on
- * failure (ie. if there's no 'struct acpi_device' for @dev)
- *
- * Find the lowest power (highest number) ACPI device power state that
- * device @dev can be in while the system is in the sleep state represented
- * by %acpi_target_sleep_state. If @wake is nonzero, the device should be
- * able to wake up the system from this sleep state. If @d_min_p is set,
- * the highest power (lowest number) device power state of @dev allowed
- * in this system sleep state is stored at the location pointed to by it.
- *
- * The caller must ensure that @dev is valid before using this function.
- * The caller is also responsible for figuring out if the device is
- * supposed to be able to wake up the system and passing this information
- * via @wake.
- */
-
-int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p)
-{
- acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
- struct acpi_device *adev;
- char acpi_method[] = "_SxD";
- unsigned long long d_min, d_max;
-
- if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
- printk(KERN_DEBUG "ACPI handle has no context!\n");
- return -ENODEV;
- }
-
- acpi_method[2] = '0' + acpi_target_sleep_state;
- /*
- * If the sleep state is S0, we will return D3, but if the device has
- * _S0W, we will use the value from _S0W
- */
- d_min = ACPI_STATE_D0;
- d_max = ACPI_STATE_D3;
-
- /*
- * If present, _SxD methods return the minimum D-state (highest power
- * state) we can use for the corresponding S-states. Otherwise, the
- * minimum D-state is D0 (ACPI 3.x).
- *
- * NOTE: We rely on acpi_evaluate_integer() not clobbering the integer
- * provided -- that's our fault recovery, we ignore retval.
- */
- if (acpi_target_sleep_state > ACPI_STATE_S0)
- acpi_evaluate_integer(handle, acpi_method, NULL, &d_min);
-
- /*
- * If _PRW says we can wake up the system from the target sleep state,
- * the D-state returned by _SxD is sufficient for that (we assume a
- * wakeup-aware driver if wake is set). Still, if _SxW exists
- * (ACPI 3.x), it should return the maximum (lowest power) D-state that
- * can wake the system. _S0W may be valid, too.
- */
- if (acpi_target_sleep_state == ACPI_STATE_S0 ||
- (device_may_wakeup(dev) && adev->wakeup.state.enabled &&
- adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
- acpi_status status;
-
- acpi_method[3] = 'W';
- status = acpi_evaluate_integer(handle, acpi_method, NULL,
- &d_max);
- if (ACPI_FAILURE(status)) {
- d_max = d_min;
- } else if (d_max < d_min) {
- /* Warn the user of the broken DSDT */
- printk(KERN_WARNING "ACPI: Wrong value from %s\n",
- acpi_method);
- /* Sanitize it */
- d_min = d_max;
- }
- }
-
- if (d_min_p)
- *d_min_p = d_min;
- return d_max;
-}
-
-/**
- * acpi_pm_device_sleep_wake - enable or disable the system wake-up
- * capability of given device
- * @dev: device to handle
- * @enable: 'true' - enable, 'false' - disable the wake-up capability
- */
-int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
-{
- acpi_handle handle;
- struct acpi_device *adev;
-
- if (!device_may_wakeup(dev))
- return -EINVAL;
-
- handle = DEVICE_ACPI_HANDLE(dev);
- if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
- printk(KERN_DEBUG "ACPI handle has no context!\n");
- return -ENODEV;
- }
-
- return enable ?
- acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
- acpi_disable_wakeup_device_power(adev);
-}
-#endif
-
-static void acpi_power_off_prepare(void)
-{
- /* Prepare to power off the system */
- acpi_sleep_prepare(ACPI_STATE_S5);
- acpi_disable_all_gpes();
-}
-
-static void acpi_power_off(void)
-{
- /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
- printk("%s called\n", __func__);
- local_irq_disable();
- acpi_enable_wakeup_device(ACPI_STATE_S5);
- acpi_enter_sleep_state(ACPI_STATE_S5);
-}
-
-int __init acpi_sleep_init(void)
-{
- acpi_status status;
- u8 type_a, type_b;
-#ifdef CONFIG_SUSPEND
- int i = 0;
-
- dmi_check_system(acpisleep_dmi_table);
-#endif
-
- if (acpi_disabled)
- return 0;
-
- sleep_states[ACPI_STATE_S0] = 1;
- printk(KERN_INFO PREFIX "(supports S0");
-
-#ifdef CONFIG_SUSPEND
- for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
- status = acpi_get_sleep_type_data(i, &type_a, &type_b);
- if (ACPI_SUCCESS(status)) {
- sleep_states[i] = 1;
- printk(" S%d", i);
- }
- }
-
- suspend_set_ops(old_suspend_ordering ?
- &acpi_suspend_ops_old : &acpi_suspend_ops);
-#endif
-
-#ifdef CONFIG_HIBERNATION
- status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
- if (ACPI_SUCCESS(status)) {
- hibernation_set_ops(old_suspend_ordering ?
- &acpi_hibernation_ops_old : &acpi_hibernation_ops);
- sleep_states[ACPI_STATE_S4] = 1;
- printk(" S4");
- if (!nosigcheck) {
- acpi_get_table(ACPI_SIG_FACS, 1,
- (struct acpi_table_header **)&facs);
- if (facs)
- s4_hardware_signature =
- facs->hardware_signature;
- }
- }
-#endif
- status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
- if (ACPI_SUCCESS(status)) {
- sleep_states[ACPI_STATE_S5] = 1;
- printk(" S5");
- pm_power_off_prepare = acpi_power_off_prepare;
- pm_power_off = acpi_power_off;
- }
- printk(")\n");
- /*
- * Register the tts_notifier to reboot notifier list so that the _TTS
- * object can also be evaluated when the system enters S5.
- */
- register_reboot_notifier(&tts_notifier);
- return 0;
-}
+++ /dev/null
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/suspend.h>
-#include <linux/bcd.h>
-#include <asm/uaccess.h>
-
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
-#ifdef CONFIG_X86
-#include <linux/mc146818rtc.h>
-#endif
-
-#include "sleep.h"
-
-#define _COMPONENT ACPI_SYSTEM_COMPONENT
-
-/*
- * this file provides support for:
- * /proc/acpi/sleep
- * /proc/acpi/alarm
- * /proc/acpi/wakeup
- */
-
-ACPI_MODULE_NAME("sleep")
-#ifdef CONFIG_ACPI_PROCFS
-static int acpi_system_sleep_seq_show(struct seq_file *seq, void *offset)
-{
- int i;
-
- for (i = 0; i <= ACPI_STATE_S5; i++) {
- if (sleep_states[i]) {
- seq_printf(seq, "S%d ", i);
- }
- }
-
- seq_puts(seq, "\n");
-
- return 0;
-}
-
-static int acpi_system_sleep_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_system_sleep_seq_show, PDE(inode)->data);
-}
-
-static ssize_t
-acpi_system_write_sleep(struct file *file,
- const char __user * buffer, size_t count, loff_t * ppos)
-{
- char str[12];
- u32 state = 0;
- int error = 0;
-
- if (count > sizeof(str) - 1)
- goto Done;
- memset(str, 0, sizeof(str));
- if (copy_from_user(str, buffer, count))
- return -EFAULT;
-
- /* Check for S4 bios request */
- if (!strcmp(str, "4b")) {
- error = acpi_suspend(4);
- goto Done;
- }
- state = simple_strtoul(str, NULL, 0);
-#ifdef CONFIG_HIBERNATION
- if (state == 4) {
- error = hibernate();
- goto Done;
- }
-#endif
- error = acpi_suspend(state);
- Done:
- return error ? error : count;
-}
-#endif /* CONFIG_ACPI_PROCFS */
-
-#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86)
-/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */
-#else
-#define HAVE_ACPI_LEGACY_ALARM
-#endif
-
-#ifdef HAVE_ACPI_LEGACY_ALARM
-
-static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
-{
- u32 sec, min, hr;
- u32 day, mo, yr, cent = 0;
- unsigned char rtc_control = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&rtc_lock, flags);
-
- sec = CMOS_READ(RTC_SECONDS_ALARM);
- min = CMOS_READ(RTC_MINUTES_ALARM);
- hr = CMOS_READ(RTC_HOURS_ALARM);
- rtc_control = CMOS_READ(RTC_CONTROL);
-
- /* If we ever get an FACP with proper values... */
- if (acpi_gbl_FADT.day_alarm)
- /* ACPI spec: only low 6 its should be cared */
- day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F;
- else
- day = CMOS_READ(RTC_DAY_OF_MONTH);
- if (acpi_gbl_FADT.month_alarm)
- mo = CMOS_READ(acpi_gbl_FADT.month_alarm);
- else
- mo = CMOS_READ(RTC_MONTH);
- if (acpi_gbl_FADT.century)
- cent = CMOS_READ(acpi_gbl_FADT.century);
-
- yr = CMOS_READ(RTC_YEAR);
-
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
- sec = bcd2bin(sec);
- min = bcd2bin(min);
- hr = bcd2bin(hr);
- day = bcd2bin(day);
- mo = bcd2bin(mo);
- yr = bcd2bin(yr);
- cent = bcd2bin(cent);
- }
-
- /* we're trusting the FADT (see above) */
- if (!acpi_gbl_FADT.century)
- /* If we're not trusting the FADT, we should at least make it
- * right for _this_ century... ehm, what is _this_ century?
- *
- * TBD:
- * ASAP: find piece of code in the kernel, e.g. star tracker driver,
- * which we can trust to determine the century correctly. Atom
- * watch driver would be nice, too...
- *
- * if that has not happened, change for first release in 2050:
- * if (yr<50)
- * yr += 2100;
- * else
- * yr += 2000; // current line of code
- *
- * if that has not happened either, please do on 2099/12/31:23:59:59
- * s/2000/2100
- *
- */
- yr += 2000;
- else
- yr += cent * 100;
-
- seq_printf(seq, "%4.4u-", yr);
- (mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
- (day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
- (hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr);
- (min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min);
- (sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec);
-
- return 0;
-}
-
-static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_system_alarm_seq_show, PDE(inode)->data);
-}
-
-static int get_date_field(char **p, u32 * value)
-{
- char *next = NULL;
- char *string_end = NULL;
- int result = -EINVAL;
-
- /*
- * Try to find delimeter, only to insert null. The end of the
- * string won't have one, but is still valid.
- */
- if (*p == NULL)
- return result;
-
- next = strpbrk(*p, "- :");
- if (next)
- *next++ = '\0';
-
- *value = simple_strtoul(*p, &string_end, 10);
-
- /* Signal success if we got a good digit */
- if (string_end != *p)
- result = 0;
-
- if (next)
- *p = next;
- else
- *p = NULL;
-
- return result;
-}
-
-/* Read a possibly BCD register, always return binary */
-static u32 cmos_bcd_read(int offset, int rtc_control)
-{
- u32 val = CMOS_READ(offset);
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- val = bcd2bin(val);
- return val;
-}
-
-/* Write binary value into possibly BCD register */
-static void cmos_bcd_write(u32 val, int offset, int rtc_control)
-{
- if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
- val = bin2bcd(val);
- CMOS_WRITE(val, offset);
-}
-
-static ssize_t
-acpi_system_write_alarm(struct file *file,
- const char __user * buffer, size_t count, loff_t * ppos)
-{
- int result = 0;
- char alarm_string[30] = { '\0' };
- char *p = alarm_string;
- u32 sec, min, hr, day, mo, yr;
- int adjust = 0;
- unsigned char rtc_control = 0;
-
- if (count > sizeof(alarm_string) - 1)
- return -EINVAL;
-
- if (copy_from_user(alarm_string, buffer, count))
- return -EFAULT;
-
- alarm_string[count] = '\0';
-
- /* check for time adjustment */
- if (alarm_string[0] == '+') {
- p++;
- adjust = 1;
- }
-
- if ((result = get_date_field(&p, &yr)))
- goto end;
- if ((result = get_date_field(&p, &mo)))
- goto end;
- if ((result = get_date_field(&p, &day)))
- goto end;
- if ((result = get_date_field(&p, &hr)))
- goto end;
- if ((result = get_date_field(&p, &min)))
- goto end;
- if ((result = get_date_field(&p, &sec)))
- goto end;
-
- spin_lock_irq(&rtc_lock);
-
- rtc_control = CMOS_READ(RTC_CONTROL);
-
- if (adjust) {
- yr += cmos_bcd_read(RTC_YEAR, rtc_control);
- mo += cmos_bcd_read(RTC_MONTH, rtc_control);
- day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
- hr += cmos_bcd_read(RTC_HOURS, rtc_control);
- min += cmos_bcd_read(RTC_MINUTES, rtc_control);
- sec += cmos_bcd_read(RTC_SECONDS, rtc_control);
- }
-
- spin_unlock_irq(&rtc_lock);
-
- if (sec > 59) {
- min += sec/60;
- sec = sec%60;
- }
- if (min > 59) {
- hr += min/60;
- min = min%60;
- }
- if (hr > 23) {
- day += hr/24;
- hr = hr%24;
- }
- if (day > 31) {
- mo += day/32;
- day = day%32;
- }
- if (mo > 12) {
- yr += mo/13;
- mo = mo%13;
- }
-
- spin_lock_irq(&rtc_lock);
- /*
- * Disable alarm interrupt before setting alarm timer or else
- * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs
- */
- rtc_control &= ~RTC_AIE;
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
-
- /* write the fields the rtc knows about */
- cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control);
- cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control);
- cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control);
-
- /*
- * If the system supports an enhanced alarm it will have non-zero
- * offsets into the CMOS RAM here -- which for some reason are pointing
- * to the RTC area of memory.
- */
- if (acpi_gbl_FADT.day_alarm)
- cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control);
- if (acpi_gbl_FADT.month_alarm)
- cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control);
- if (acpi_gbl_FADT.century) {
- if (adjust)
- yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100;
- cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control);
- }
- /* enable the rtc alarm interrupt */
- rtc_control |= RTC_AIE;
- CMOS_WRITE(rtc_control, RTC_CONTROL);
- CMOS_READ(RTC_INTR_FLAGS);
-
- spin_unlock_irq(&rtc_lock);
-
- acpi_clear_event(ACPI_EVENT_RTC);
- acpi_enable_event(ACPI_EVENT_RTC, 0);
-
- *ppos += count;
-
- result = 0;
- end:
- return result ? result : count;
-}
-#endif /* HAVE_ACPI_LEGACY_ALARM */
-
-extern struct list_head acpi_wakeup_device_list;
-extern spinlock_t acpi_device_lock;
-
-static int
-acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
-{
- struct list_head *node, *next;
-
- seq_printf(seq, "Device\tS-state\t Status Sysfs node\n");
-
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev =
- container_of(node, struct acpi_device, wakeup_list);
- struct device *ldev;
-
- if (!dev->wakeup.flags.valid)
- continue;
- spin_unlock(&acpi_device_lock);
-
- ldev = acpi_get_physical_device(dev->handle);
- seq_printf(seq, "%s\t S%d\t%c%-8s ",
- dev->pnp.bus_id,
- (u32) dev->wakeup.sleep_state,
- dev->wakeup.flags.run_wake ? '*' : ' ',
- dev->wakeup.state.enabled ? "enabled" : "disabled");
- if (ldev)
- seq_printf(seq, "%s:%s",
- ldev->bus ? ldev->bus->name : "no-bus",
- dev_name(ldev));
- seq_printf(seq, "\n");
- put_device(ldev);
-
- spin_lock(&acpi_device_lock);
- }
- spin_unlock(&acpi_device_lock);
- return 0;
-}
-
-static void physical_device_enable_wakeup(struct acpi_device *adev)
-{
- struct device *dev = acpi_get_physical_device(adev->handle);
-
- if (dev && device_can_wakeup(dev))
- device_set_wakeup_enable(dev, adev->wakeup.state.enabled);
-}
-
-static ssize_t
-acpi_system_write_wakeup_device(struct file *file,
- const char __user * buffer,
- size_t count, loff_t * ppos)
-{
- struct list_head *node, *next;
- char strbuf[5];
- char str[5] = "";
- int len = count;
- struct acpi_device *found_dev = NULL;
-
- if (len > 4)
- len = 4;
-
- if (copy_from_user(strbuf, buffer, len))
- return -EFAULT;
- strbuf[len] = '\0';
- sscanf(strbuf, "%s", str);
-
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev =
- container_of(node, struct acpi_device, wakeup_list);
- if (!dev->wakeup.flags.valid)
- continue;
-
- if (!strncmp(dev->pnp.bus_id, str, 4)) {
- dev->wakeup.state.enabled =
- dev->wakeup.state.enabled ? 0 : 1;
- found_dev = dev;
- break;
- }
- }
- if (found_dev) {
- physical_device_enable_wakeup(found_dev);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct
- acpi_device,
- wakeup_list);
-
- if ((dev != found_dev) &&
- (dev->wakeup.gpe_number ==
- found_dev->wakeup.gpe_number)
- && (dev->wakeup.gpe_device ==
- found_dev->wakeup.gpe_device)) {
- printk(KERN_WARNING
- "ACPI: '%s' and '%s' have the same GPE, "
- "can't disable/enable one seperately\n",
- dev->pnp.bus_id, found_dev->pnp.bus_id);
- dev->wakeup.state.enabled =
- found_dev->wakeup.state.enabled;
- physical_device_enable_wakeup(dev);
- }
- }
- }
- spin_unlock(&acpi_device_lock);
- return count;
-}
-
-static int
-acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_system_wakeup_device_seq_show,
- PDE(inode)->data);
-}
-
-static const struct file_operations acpi_system_wakeup_device_fops = {
- .owner = THIS_MODULE,
- .open = acpi_system_wakeup_device_open_fs,
- .read = seq_read,
- .write = acpi_system_write_wakeup_device,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-#ifdef CONFIG_ACPI_PROCFS
-static const struct file_operations acpi_system_sleep_fops = {
- .owner = THIS_MODULE,
- .open = acpi_system_sleep_open_fs,
- .read = seq_read,
- .write = acpi_system_write_sleep,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif /* CONFIG_ACPI_PROCFS */
-
-#ifdef HAVE_ACPI_LEGACY_ALARM
-static const struct file_operations acpi_system_alarm_fops = {
- .owner = THIS_MODULE,
- .open = acpi_system_alarm_open_fs,
- .read = seq_read,
- .write = acpi_system_write_alarm,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static u32 rtc_handler(void *context)
-{
- acpi_clear_event(ACPI_EVENT_RTC);
- acpi_disable_event(ACPI_EVENT_RTC, 0);
-
- return ACPI_INTERRUPT_HANDLED;
-}
-#endif /* HAVE_ACPI_LEGACY_ALARM */
-
-static int __init acpi_sleep_proc_init(void)
-{
- if (acpi_disabled)
- return 0;
-
-#ifdef CONFIG_ACPI_PROCFS
- /* 'sleep' [R/W] */
- proc_create("sleep", S_IFREG | S_IRUGO | S_IWUSR,
- acpi_root_dir, &acpi_system_sleep_fops);
-#endif /* CONFIG_ACPI_PROCFS */
-
-#ifdef HAVE_ACPI_LEGACY_ALARM
- /* 'alarm' [R/W] */
- proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR,
- acpi_root_dir, &acpi_system_alarm_fops);
-
- acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
- /*
- * Disable the RTC event after installing RTC handler.
- * Only when RTC alarm is set will it be enabled.
- */
- acpi_clear_event(ACPI_EVENT_RTC);
- acpi_disable_event(ACPI_EVENT_RTC, 0);
-#endif /* HAVE_ACPI_LEGACY_ALARM */
-
- /* 'wakeup device' [R/W] */
- proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR,
- acpi_root_dir, &acpi_system_wakeup_device_fops);
-
- return 0;
-}
-
-late_initcall(acpi_sleep_proc_init);
+++ /dev/null
-
-extern u8 sleep_states[];
-extern int acpi_suspend (u32 state);
-
-extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
-extern void acpi_enable_wakeup_device(u8 sleep_state);
-extern void acpi_disable_wakeup_device(u8 sleep_state);
+++ /dev/null
-/*
- * wakeup.c - support wakeup devices
- * Copyright (C) 2004 Li Shaohua <shaohua.li@intel.com>
- */
-
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <acpi/acpi_drivers.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include "sleep.h"
-
-#define _COMPONENT ACPI_SYSTEM_COMPONENT
-ACPI_MODULE_NAME("wakeup_devices")
-
-extern struct list_head acpi_wakeup_device_list;
-extern spinlock_t acpi_device_lock;
-
-/**
- * acpi_enable_wakeup_device_prep - prepare wakeup devices
- * @sleep_state: ACPI state
- * Enable all wakup devices power if the devices' wakeup level
- * is higher than requested sleep level
- */
-
-void acpi_enable_wakeup_device_prep(u8 sleep_state)
-{
- struct list_head *node, *next;
-
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
-
- if (!dev->wakeup.flags.valid ||
- !dev->wakeup.state.enabled ||
- (sleep_state > (u32) dev->wakeup.sleep_state))
- continue;
-
- spin_unlock(&acpi_device_lock);
- acpi_enable_wakeup_device_power(dev, sleep_state);
- spin_lock(&acpi_device_lock);
- }
- spin_unlock(&acpi_device_lock);
-}
-
-/**
- * acpi_enable_wakeup_device - enable wakeup devices
- * @sleep_state: ACPI state
- * Enable all wakup devices's GPE
- */
-void acpi_enable_wakeup_device(u8 sleep_state)
-{
- struct list_head *node, *next;
-
- /*
- * Caution: this routine must be invoked when interrupt is disabled
- * Refer ACPI2.0: P212
- */
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev =
- container_of(node, struct acpi_device, wakeup_list);
-
- if (!dev->wakeup.flags.valid)
- continue;
-
- /* If users want to disable run-wake GPE,
- * we only disable it for wake and leave it for runtime
- */
- if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
- || sleep_state > (u32) dev->wakeup.sleep_state) {
- if (dev->wakeup.flags.run_wake) {
- spin_unlock(&acpi_device_lock);
- /* set_gpe_type will disable GPE, leave it like that */
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_RUNTIME);
- spin_lock(&acpi_device_lock);
- }
- continue;
- }
- spin_unlock(&acpi_device_lock);
- if (!dev->wakeup.flags.run_wake)
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number);
- spin_lock(&acpi_device_lock);
- }
- spin_unlock(&acpi_device_lock);
-}
-
-/**
- * acpi_disable_wakeup_device - disable devices' wakeup capability
- * @sleep_state: ACPI state
- * Disable all wakup devices's GPE and wakeup capability
- */
-void acpi_disable_wakeup_device(u8 sleep_state)
-{
- struct list_head *node, *next;
-
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev =
- container_of(node, struct acpi_device, wakeup_list);
-
- if (!dev->wakeup.flags.valid)
- continue;
-
- if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
- || sleep_state > (u32) dev->wakeup.sleep_state) {
- if (dev->wakeup.flags.run_wake) {
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE_RUN);
- /* Re-enable it, since set_gpe_type will disable it */
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number);
- spin_lock(&acpi_device_lock);
- }
- continue;
- }
-
- spin_unlock(&acpi_device_lock);
- acpi_disable_wakeup_device_power(dev);
- /* Never disable run-wake GPE */
- if (!dev->wakeup.flags.run_wake) {
- acpi_disable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number);
- acpi_clear_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number, ACPI_NOT_ISR);
- }
- spin_lock(&acpi_device_lock);
- }
- spin_unlock(&acpi_device_lock);
-}
-
-static int __init acpi_wakeup_device_init(void)
-{
- struct list_head *node, *next;
-
- if (acpi_disabled)
- return 0;
-
- spin_lock(&acpi_device_lock);
- list_for_each_safe(node, next, &acpi_wakeup_device_list) {
- struct acpi_device *dev = container_of(node,
- struct acpi_device,
- wakeup_list);
- /* In case user doesn't load button driver */
- if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled)
- continue;
- spin_unlock(&acpi_device_lock);
- acpi_set_gpe_type(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number,
- ACPI_GPE_TYPE_WAKE_RUN);
- acpi_enable_gpe(dev->wakeup.gpe_device,
- dev->wakeup.gpe_number);
- dev->wakeup.state.enabled = 1;
- spin_lock(&acpi_device_lock);
- }
- spin_unlock(&acpi_device_lock);
- return 0;
-}
-
-late_initcall(acpi_wakeup_device_init);
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: tbfadt - FADT table utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbfadt")
-
-/* Local prototypes */
-static inline void
-acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
- u8 space_id, u8 byte_width, u64 address);
-
-static void acpi_tb_convert_fadt(void);
-
-static void acpi_tb_validate_fadt(void);
-
-/* Table for conversion of FADT to common internal format and FADT validation */
-
-typedef struct acpi_fadt_info {
- char *name;
- u8 address64;
- u8 address32;
- u8 length;
- u8 default_length;
- u8 type;
-
-} acpi_fadt_info;
-
-#define ACPI_FADT_REQUIRED 1
-#define ACPI_FADT_SEPARATE_LENGTH 2
-
-static struct acpi_fadt_info fadt_info_table[] = {
- {"Pm1aEventBlock",
- ACPI_FADT_OFFSET(xpm1a_event_block),
- ACPI_FADT_OFFSET(pm1a_event_block),
- ACPI_FADT_OFFSET(pm1_event_length),
- ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
- ACPI_FADT_REQUIRED},
-
- {"Pm1bEventBlock",
- ACPI_FADT_OFFSET(xpm1b_event_block),
- ACPI_FADT_OFFSET(pm1b_event_block),
- ACPI_FADT_OFFSET(pm1_event_length),
- ACPI_PM1_REGISTER_WIDTH * 2, /* Enable + Status register */
- 0},
-
- {"Pm1aControlBlock",
- ACPI_FADT_OFFSET(xpm1a_control_block),
- ACPI_FADT_OFFSET(pm1a_control_block),
- ACPI_FADT_OFFSET(pm1_control_length),
- ACPI_PM1_REGISTER_WIDTH,
- ACPI_FADT_REQUIRED},
-
- {"Pm1bControlBlock",
- ACPI_FADT_OFFSET(xpm1b_control_block),
- ACPI_FADT_OFFSET(pm1b_control_block),
- ACPI_FADT_OFFSET(pm1_control_length),
- ACPI_PM1_REGISTER_WIDTH,
- 0},
-
- {"Pm2ControlBlock",
- ACPI_FADT_OFFSET(xpm2_control_block),
- ACPI_FADT_OFFSET(pm2_control_block),
- ACPI_FADT_OFFSET(pm2_control_length),
- ACPI_PM2_REGISTER_WIDTH,
- ACPI_FADT_SEPARATE_LENGTH},
-
- {"PmTimerBlock",
- ACPI_FADT_OFFSET(xpm_timer_block),
- ACPI_FADT_OFFSET(pm_timer_block),
- ACPI_FADT_OFFSET(pm_timer_length),
- ACPI_PM_TIMER_WIDTH,
- ACPI_FADT_REQUIRED},
-
- {"Gpe0Block",
- ACPI_FADT_OFFSET(xgpe0_block),
- ACPI_FADT_OFFSET(gpe0_block),
- ACPI_FADT_OFFSET(gpe0_block_length),
- 0,
- ACPI_FADT_SEPARATE_LENGTH},
-
- {"Gpe1Block",
- ACPI_FADT_OFFSET(xgpe1_block),
- ACPI_FADT_OFFSET(gpe1_block),
- ACPI_FADT_OFFSET(gpe1_block_length),
- 0,
- ACPI_FADT_SEPARATE_LENGTH}
-};
-
-#define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info))
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_init_generic_address
- *
- * PARAMETERS: generic_address - GAS struct to be initialized
- * byte_width - Width of this register
- * Address - Address of the register
- *
- * RETURN: None
- *
- * DESCRIPTION: Initialize a Generic Address Structure (GAS)
- * See the ACPI specification for a full description and
- * definition of this structure.
- *
- ******************************************************************************/
-
-static inline void
-acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
- u8 space_id, u8 byte_width, u64 address)
-{
-
- /*
- * The 64-bit Address field is non-aligned in the byte packed
- * GAS struct.
- */
- ACPI_MOVE_64_TO_64(&generic_address->address, &address);
-
- /* All other fields are byte-wide */
-
- generic_address->space_id = space_id;
- generic_address->bit_width = (u8)ACPI_MUL_8(byte_width);
- generic_address->bit_offset = 0;
- generic_address->access_width = 0; /* Access width ANY */
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_parse_fadt
- *
- * PARAMETERS: table_index - Index for the FADT
- * Flags - Flags
- *
- * RETURN: None
- *
- * DESCRIPTION: Initialize the FADT, DSDT and FACS tables
- * (FADT contains the addresses of the DSDT and FACS)
- *
- ******************************************************************************/
-
-void acpi_tb_parse_fadt(u32 table_index, u8 flags)
-{
- u32 length;
- struct acpi_table_header *table;
-
- /*
- * The FADT has multiple versions with different lengths,
- * and it contains pointers to both the DSDT and FACS tables.
- *
- * Get a local copy of the FADT and convert it to a common format
- * Map entire FADT, assumed to be smaller than one page.
- */
- length = acpi_gbl_root_table_list.tables[table_index].length;
-
- table =
- acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
- address, length);
- if (!table) {
- return;
- }
-
- /*
- * Validate the FADT checksum before we copy the table. Ignore
- * checksum error as we want to try to get the DSDT and FACS.
- */
- (void)acpi_tb_verify_checksum(table, length);
-
- /* Obtain a local copy of the FADT in common ACPI 2.0+ format */
-
- acpi_tb_create_local_fadt(table, length);
-
- /* All done with the real FADT, unmap it */
-
- acpi_os_unmap_memory(table, length);
-
- /* Obtain the DSDT and FACS tables via their addresses within the FADT */
-
- acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
- flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
-
- acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs,
- flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_create_local_fadt
- *
- * PARAMETERS: Table - Pointer to BIOS FADT
- * Length - Length of the table
- *
- * RETURN: None
- *
- * DESCRIPTION: Get a local copy of the FADT and convert it to a common format.
- * Performs validation on some important FADT fields.
- *
- * NOTE: We create a local copy of the FADT regardless of the version.
- *
- ******************************************************************************/
-
-void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
-{
-
- /*
- * Check if the FADT is larger than the largest table that we expect
- * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue
- * a warning.
- */
- if (length > sizeof(struct acpi_table_fadt)) {
- ACPI_WARNING((AE_INFO,
- "FADT (revision %u) is longer than ACPI 2.0 version, "
- "truncating length 0x%X to 0x%zX",
- table->revision, (unsigned)length,
- sizeof(struct acpi_table_fadt)));
- }
-
- /* Clear the entire local FADT */
-
- ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
-
- /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */
-
- ACPI_MEMCPY(&acpi_gbl_FADT, table,
- ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
-
- /*
- * 1) Convert the local copy of the FADT to the common internal format
- * 2) Validate some of the important values within the FADT
- */
- acpi_tb_convert_fadt();
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_convert_fadt
- *
- * PARAMETERS: None, uses acpi_gbl_FADT
- *
- * RETURN: None
- *
- * DESCRIPTION: Converts all versions of the FADT to a common internal format.
- * Expand all 32-bit addresses to 64-bit.
- *
- * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt),
- * and must contain a copy of the actual FADT.
- *
- * ACPICA will use the "X" fields of the FADT for all addresses.
- *
- * "X" fields are optional extensions to the original V1.0 fields. Even if
- * they are present in the structure, they can be optionally not used by
- * setting them to zero. Therefore, we must selectively expand V1.0 fields
- * if the corresponding X field is zero.
- *
- * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding
- * "X" fields.
- *
- * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by
- * expanding the corresponding ACPI 1.0 field.
- *
- ******************************************************************************/
-
-static void acpi_tb_convert_fadt(void)
-{
- u8 pm1_register_bit_width;
- u8 pm1_register_byte_width;
- struct acpi_generic_address *target64;
- u32 i;
-
- /* Update the local FADT table header length */
-
- acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
-
- /*
- * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
- * Later code will always use the X 64-bit field. Also, check for an
- * address mismatch between the 32-bit and 64-bit address fields
- * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate
- * the presence of two FACS or two DSDT tables.
- */
- if (!acpi_gbl_FADT.Xfacs) {
- acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
- } else if (acpi_gbl_FADT.facs &&
- (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
- ACPI_WARNING((AE_INFO,
- "32/64 FACS address mismatch in FADT - two FACS tables!"));
- }
-
- if (!acpi_gbl_FADT.Xdsdt) {
- acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
- } else if (acpi_gbl_FADT.dsdt &&
- (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
- ACPI_WARNING((AE_INFO,
- "32/64 DSDT address mismatch in FADT - two DSDT tables!"));
- }
-
- /*
- * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which
- * should be zero are indeed zero. This will workaround BIOSs that
- * inadvertently place values in these fields.
- *
- * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at
- * offset 45, 55, 95, and the word located at offset 109, 110.
- */
- if (acpi_gbl_FADT.header.revision < FADT2_REVISION_ID) {
- acpi_gbl_FADT.preferred_profile = 0;
- acpi_gbl_FADT.pstate_control = 0;
- acpi_gbl_FADT.cst_control = 0;
- acpi_gbl_FADT.boot_flags = 0;
- }
-
- /*
- * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X"
- * generic address structures as necessary. Later code will always use
- * the 64-bit address structures.
- */
- for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
- target64 =
- ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
- fadt_info_table[i].address64);
-
- /* Expand only if the 64-bit X target is null */
-
- if (!target64->address) {
-
- /* The space_id is always I/O for the 32-bit legacy address fields */
-
- acpi_tb_init_generic_address(target64,
- ACPI_ADR_SPACE_SYSTEM_IO,
- *ACPI_ADD_PTR(u8,
- &acpi_gbl_FADT,
- fadt_info_table
- [i].length),
- (u64) * ACPI_ADD_PTR(u32,
- &acpi_gbl_FADT,
- fadt_info_table
- [i].
- address32));
- }
- }
-
- /* Validate FADT values now, before we make any changes */
-
- acpi_tb_validate_fadt();
-
- /*
- * Optionally check all register lengths against the default values and
- * update them if they are incorrect.
- */
- if (acpi_gbl_use_default_register_widths) {
- for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
- target64 =
- ACPI_ADD_PTR(struct acpi_generic_address,
- &acpi_gbl_FADT,
- fadt_info_table[i].address64);
-
- /*
- * If a valid register (Address != 0) and the (default_length > 0)
- * (Not a GPE register), then check the width against the default.
- */
- if ((target64->address) &&
- (fadt_info_table[i].default_length > 0) &&
- (fadt_info_table[i].default_length !=
- target64->bit_width)) {
- ACPI_WARNING((AE_INFO,
- "Invalid length for %s: %d, using default %d",
- fadt_info_table[i].name,
- target64->bit_width,
- fadt_info_table[i].
- default_length));
-
- /* Incorrect size, set width to the default */
-
- target64->bit_width =
- fadt_info_table[i].default_length;
- }
- }
- }
-
- /*
- * Get the length of the individual PM1 registers (enable and status).
- * Each register is defined to be (event block length / 2).
- */
- pm1_register_bit_width =
- (u8)ACPI_DIV_2(acpi_gbl_FADT.xpm1a_event_block.bit_width);
- pm1_register_byte_width = (u8)ACPI_DIV_8(pm1_register_bit_width);
-
- /*
- * Adjust the lengths of the PM1 Event Blocks so that they can be used to
- * access the PM1 status register(s). Use (width / 2)
- */
- acpi_gbl_FADT.xpm1a_event_block.bit_width = pm1_register_bit_width;
- acpi_gbl_FADT.xpm1b_event_block.bit_width = pm1_register_bit_width;
-
- /*
- * Calculate separate GAS structs for the PM1 Enable registers.
- * These addresses do not appear (directly) in the FADT, so it is
- * useful to calculate them once, here.
- *
- * The PM event blocks are split into two register blocks, first is the
- * PM Status Register block, followed immediately by the PM Enable
- * Register block. Each is of length (xpm1x_event_block.bit_width/2).
- *
- * On various systems the v2 fields (and particularly the bit widths)
- * cannot be relied upon, though. Hence resort to using the v1 length
- * here (and warn about the inconsistency).
- */
- if (acpi_gbl_FADT.xpm1a_event_block.bit_width
- != acpi_gbl_FADT.pm1_event_length * 8)
- printk(KERN_WARNING "FADT: "
- "X_PM1a_EVT_BLK.bit_width (%u) does not match"
- " PM1_EVT_LEN (%u)\n",
- acpi_gbl_FADT.xpm1a_event_block.bit_width,
- acpi_gbl_FADT.pm1_event_length);
-
- /* The PM1A register block is required */
-
- acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
- acpi_gbl_FADT.xpm1a_event_block.space_id,
- pm1_register_byte_width,
- (acpi_gbl_FADT.xpm1a_event_block.address +
- pm1_register_byte_width));
- /* Don't forget to copy space_id of the GAS */
- acpi_gbl_xpm1a_enable.space_id =
- acpi_gbl_FADT.xpm1a_event_block.space_id;
-
- /* The PM1B register block is optional, ignore if not present */
-
- if (acpi_gbl_FADT.xpm1b_event_block.address) {
- if (acpi_gbl_FADT.xpm1b_event_block.bit_width
- != acpi_gbl_FADT.pm1_event_length * 8)
- printk(KERN_WARNING "FADT: "
- "X_PM1b_EVT_BLK.bit_width (%u) does not match"
- " PM1_EVT_LEN (%u)\n",
- acpi_gbl_FADT.xpm1b_event_block.bit_width,
- acpi_gbl_FADT.pm1_event_length);
- acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
- acpi_gbl_FADT.xpm1b_event_block.space_id,
- pm1_register_byte_width,
- (acpi_gbl_FADT.xpm1b_event_block.
- address + pm1_register_byte_width));
- /* Don't forget to copy space_id of the GAS */
- acpi_gbl_xpm1b_enable.space_id =
- acpi_gbl_FADT.xpm1b_event_block.space_id;
-
- }
-}
-
-/******************************************************************************
- *
- * FUNCTION: acpi_tb_validate_fadt
- *
- * PARAMETERS: Table - Pointer to the FADT to be validated
- *
- * RETURN: None
- *
- * DESCRIPTION: Validate various important fields within the FADT. If a problem
- * is found, issue a message, but no status is returned.
- * Used by both the table manager and the disassembler.
- *
- * Possible additional checks:
- * (acpi_gbl_FADT.pm1_event_length >= 4)
- * (acpi_gbl_FADT.pm1_control_length >= 2)
- * (acpi_gbl_FADT.pm_timer_length >= 4)
- * Gpe block lengths must be multiple of 2
- *
- ******************************************************************************/
-
-static void acpi_tb_validate_fadt(void)
-{
- char *name;
- u32 *address32;
- struct acpi_generic_address *address64;
- u8 length;
- u32 i;
-
- /*
- * Check for FACS and DSDT address mismatches. An address mismatch between
- * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and
- * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables.
- */
- if (acpi_gbl_FADT.facs &&
- (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) {
- ACPI_WARNING((AE_INFO,
- "32/64X FACS address mismatch in FADT - "
- "two FACS tables! %8.8X/%8.8X%8.8X",
- acpi_gbl_FADT.facs,
- ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs)));
- }
-
- if (acpi_gbl_FADT.dsdt &&
- (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) {
- ACPI_WARNING((AE_INFO,
- "32/64X DSDT address mismatch in FADT - "
- "two DSDT tables! %8.8X/%8.8X%8.8X",
- acpi_gbl_FADT.dsdt,
- ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt)));
- }
-
- /* Examine all of the 64-bit extended address fields (X fields) */
-
- for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
- /*
- * Generate pointers to the 32-bit and 64-bit addresses, get the
- * register length (width), and the register name
- */
- address64 = ACPI_ADD_PTR(struct acpi_generic_address,
- &acpi_gbl_FADT,
- fadt_info_table[i].address64);
- address32 =
- ACPI_ADD_PTR(u32, &acpi_gbl_FADT,
- fadt_info_table[i].address32);
- length =
- *ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
- fadt_info_table[i].length);
- name = fadt_info_table[i].name;
-
- /*
- * For each extended field, check for length mismatch between the
- * legacy length field and the corresponding 64-bit X length field.
- */
- if (address64 && (address64->bit_width != ACPI_MUL_8(length))) {
- ACPI_WARNING((AE_INFO,
- "32/64X length mismatch in %s: %d/%d",
- name, ACPI_MUL_8(length),
- address64->bit_width));
- }
-
- if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
- /*
- * Field is required (Pm1a_event, Pm1a_control, pm_timer).
- * Both the address and length must be non-zero.
- */
- if (!address64->address || !length) {
- ACPI_ERROR((AE_INFO,
- "Required field %s has zero address and/or length: %8.8X%8.8X/%X",
- name,
- ACPI_FORMAT_UINT64(address64->
- address),
- length));
- }
- } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) {
- /*
- * Field is optional (PM2Control, GPE0, GPE1) AND has its own
- * length field. If present, both the address and length must be valid.
- */
- if ((address64->address && !length)
- || (!address64->address && length)) {
- ACPI_WARNING((AE_INFO,
- "Optional field %s has zero address or length: %8.8X%8.8X/%X",
- name,
- ACPI_FORMAT_UINT64(address64->
- address),
- length));
- }
- }
-
- /* If both 32- and 64-bit addresses are valid (non-zero), they must match */
-
- if (address64->address && *address32 &&
- (address64->address != (u64) * address32)) {
- ACPI_ERROR((AE_INFO,
- "32/64X address mismatch in %s: %8.8X/%8.8X%8.8X, using 64X",
- name, *address32,
- ACPI_FORMAT_UINT64(address64->address)));
- }
- }
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: tbfind - find table
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbfind")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_find_table
- *
- * PARAMETERS: Signature - String with ACPI table signature
- * oem_id - String with the table OEM ID
- * oem_table_id - String with the OEM Table ID
- * table_index - Where the table index is returned
- *
- * RETURN: Status and table index
- *
- * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the
- * Signature, OEM ID and OEM Table ID. Returns an index that can
- * be used to get the table header or entire table.
- *
- ******************************************************************************/
-acpi_status
-acpi_tb_find_table(char *signature,
- char *oem_id, char *oem_table_id, u32 *table_index)
-{
- u32 i;
- acpi_status status;
- struct acpi_table_header header;
-
- ACPI_FUNCTION_TRACE(tb_find_table);
-
- /* Normalize the input strings */
-
- ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header));
- ACPI_STRNCPY(header.signature, signature, ACPI_NAME_SIZE);
- ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
- ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE);
-
- /* Search for the table */
-
- for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
- if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature),
- header.signature, ACPI_NAME_SIZE)) {
-
- /* Not the requested table */
-
- continue;
- }
-
- /* Table with matching signature has been found */
-
- if (!acpi_gbl_root_table_list.tables[i].pointer) {
-
- /* Table is not currently mapped, map it */
-
- status =
- acpi_tb_verify_table(&acpi_gbl_root_table_list.
- tables[i]);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (!acpi_gbl_root_table_list.tables[i].pointer) {
- continue;
- }
- }
-
- /* Check for table match on all IDs */
-
- if (!ACPI_MEMCMP
- (acpi_gbl_root_table_list.tables[i].pointer->signature,
- header.signature, ACPI_NAME_SIZE) && (!oem_id[0]
- ||
- !ACPI_MEMCMP
- (acpi_gbl_root_table_list.
- tables[i].pointer->
- oem_id,
- header.oem_id,
- ACPI_OEM_ID_SIZE))
- && (!oem_table_id[0]
- || !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i].
- pointer->oem_table_id,
- header.oem_table_id,
- ACPI_OEM_TABLE_ID_SIZE))) {
- *table_index = i;
-
- ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
- "Found table [%4.4s]\n",
- header.signature));
- return_ACPI_STATUS(AE_OK);
- }
- }
-
- return_ACPI_STATUS(AE_NOT_FOUND);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: tbinstal - ACPI table installation and removal
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbinstal")
-
-/******************************************************************************
- *
- * FUNCTION: acpi_tb_verify_table
- *
- * PARAMETERS: table_desc - table
- *
- * RETURN: Status
- *
- * DESCRIPTION: this function is called to verify and map table
- *
- *****************************************************************************/
-acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(tb_verify_table);
-
- /* Map the table if necessary */
-
- if (!table_desc->pointer) {
- if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) ==
- ACPI_TABLE_ORIGIN_MAPPED) {
- table_desc->pointer =
- acpi_os_map_memory(table_desc->address,
- table_desc->length);
- }
- if (!table_desc->pointer) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- }
-
- /* FACS is the odd table, has no standard ACPI header and no checksum */
-
- if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) {
-
- /* Always calculate checksum, ignore bad checksum if requested */
-
- status =
- acpi_tb_verify_checksum(table_desc->pointer,
- table_desc->length);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_add_table
- *
- * PARAMETERS: table_desc - Table descriptor
- * table_index - Where the table index is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to add the ACPI table
- *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
-{
- u32 i;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(tb_add_table);
-
- if (!table_desc->pointer) {
- status = acpi_tb_verify_table(table_desc);
- if (ACPI_FAILURE(status) || !table_desc->pointer) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Originally, we checked the table signature for "SSDT" or "PSDT" here.
- * Next, we added support for OEMx tables, signature "OEM".
- * Valid tables were encountered with a null signature, so we've just
- * given up on validating the signature, since it seems to be a waste
- * of code. The original code was removed (05/2008).
- */
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-
- /* Check if table is already registered */
-
- for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
- if (!acpi_gbl_root_table_list.tables[i].pointer) {
- status =
- acpi_tb_verify_table(&acpi_gbl_root_table_list.
- tables[i]);
- if (ACPI_FAILURE(status)
- || !acpi_gbl_root_table_list.tables[i].pointer) {
- continue;
- }
- }
-
- /*
- * Check for a table match on the entire table length,
- * not just the header.
- */
- if (table_desc->length !=
- acpi_gbl_root_table_list.tables[i].length) {
- continue;
- }
-
- if (ACPI_MEMCMP(table_desc->pointer,
- acpi_gbl_root_table_list.tables[i].pointer,
- acpi_gbl_root_table_list.tables[i].length)) {
- continue;
- }
-
- /*
- * Note: the current mechanism does not unregister a table if it is
- * dynamically unloaded. The related namespace entries are deleted,
- * but the table remains in the root table list.
- *
- * The assumption here is that the number of different tables that
- * will be loaded is actually small, and there is minimal overhead
- * in just keeping the table in case it is needed again.
- *
- * If this assumption changes in the future (perhaps on large
- * machines with many table load/unload operations), tables will
- * need to be unregistered when they are unloaded, and slots in the
- * root table list should be reused when empty.
- */
-
- /*
- * Table is already registered.
- * We can delete the table that was passed as a parameter.
- */
- acpi_tb_delete_table(table_desc);
- *table_index = i;
-
- if (acpi_gbl_root_table_list.tables[i].
- flags & ACPI_TABLE_IS_LOADED) {
-
- /* Table is still loaded, this is an error */
-
- status = AE_ALREADY_EXISTS;
- goto release;
- } else {
- /* Table was unloaded, allow it to be reloaded */
-
- table_desc->pointer =
- acpi_gbl_root_table_list.tables[i].pointer;
- table_desc->address =
- acpi_gbl_root_table_list.tables[i].address;
- status = AE_OK;
- goto print_header;
- }
- }
-
- /* Add the table to the global root table list */
-
- status = acpi_tb_store_table(table_desc->address, table_desc->pointer,
- table_desc->length, table_desc->flags,
- table_index);
- if (ACPI_FAILURE(status)) {
- goto release;
- }
-
- print_header:
- acpi_tb_print_table_header(table_desc->address, table_desc->pointer);
-
- release:
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_resize_root_table_list
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Expand the size of global table array
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_resize_root_table_list(void)
-{
- struct acpi_table_desc *tables;
-
- ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
-
- /* allow_resize flag is a parameter to acpi_initialize_tables */
-
- if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) {
- ACPI_ERROR((AE_INFO,
- "Resize of Root Table Array is not allowed"));
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- /* Increase the Table Array size */
-
- tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list.
- size + ACPI_ROOT_TABLE_SIZE_INCREMENT)
- * sizeof(struct acpi_table_desc));
- if (!tables) {
- ACPI_ERROR((AE_INFO,
- "Could not allocate new root table array"));
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Copy and free the previous table array */
-
- if (acpi_gbl_root_table_list.tables) {
- ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
- (acpi_size) acpi_gbl_root_table_list.size *
- sizeof(struct acpi_table_desc));
-
- if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
- ACPI_FREE(acpi_gbl_root_table_list.tables);
- }
- }
-
- acpi_gbl_root_table_list.tables = tables;
- acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT;
- acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_store_table
- *
- * PARAMETERS: Address - Table address
- * Table - Table header
- * Length - Table length
- * Flags - flags
- *
- * RETURN: Status and table index.
- *
- * DESCRIPTION: Add an ACPI table to the global table list
- *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_store_table(acpi_physical_address address,
- struct acpi_table_header *table,
- u32 length, u8 flags, u32 *table_index)
-{
- acpi_status status = AE_OK;
-
- /* Ensure that there is room for the table in the Root Table List */
-
- if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) {
- status = acpi_tb_resize_root_table_list();
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- /* Initialize added table */
-
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
- address = address;
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
- pointer = table;
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length =
- length;
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
- owner_id = 0;
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags =
- flags;
-
- ACPI_MOVE_32_TO_32(&
- (acpi_gbl_root_table_list.
- tables[acpi_gbl_root_table_list.count].signature),
- table->signature);
-
- *table_index = acpi_gbl_root_table_list.count;
- acpi_gbl_root_table_list.count++;
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_delete_table
- *
- * PARAMETERS: table_index - Table index
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete one internal ACPI table
- *
- ******************************************************************************/
-
-void acpi_tb_delete_table(struct acpi_table_desc *table_desc)
-{
- /* Table must be mapped or allocated */
- if (!table_desc->pointer) {
- return;
- }
- switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
- case ACPI_TABLE_ORIGIN_MAPPED:
- acpi_os_unmap_memory(table_desc->pointer, table_desc->length);
- break;
- case ACPI_TABLE_ORIGIN_ALLOCATED:
- ACPI_FREE(table_desc->pointer);
- break;
- default:;
- }
-
- table_desc->pointer = NULL;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_terminate
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete all internal ACPI tables
- *
- ******************************************************************************/
-
-void acpi_tb_terminate(void)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE(tb_terminate);
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-
- /* Delete the individual tables */
-
- for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
- acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]);
- }
-
- /*
- * Delete the root table array if allocated locally. Array cannot be
- * mapped, so we don't need to check for that flag.
- */
- if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
- ACPI_FREE(acpi_gbl_root_table_list.tables);
- }
-
- acpi_gbl_root_table_list.tables = NULL;
- acpi_gbl_root_table_list.flags = 0;
- acpi_gbl_root_table_list.count = 0;
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_delete_namespace_by_owner
- *
- * PARAMETERS: table_index - Table index
- *
- * RETURN: None
- *
- * DESCRIPTION: Delete all namespace objects created when this table was loaded.
- *
- ******************************************************************************/
-
-void acpi_tb_delete_namespace_by_owner(u32 table_index)
-{
- acpi_owner_id owner_id;
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (table_index < acpi_gbl_root_table_list.count) {
- owner_id =
- acpi_gbl_root_table_list.tables[table_index].owner_id;
- } else {
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return;
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- acpi_ns_delete_namespace_by_owner(owner_id);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_allocate_owner_id
- *
- * PARAMETERS: table_index - Table index
- *
- * RETURN: Status
- *
- * DESCRIPTION: Allocates owner_id in table_desc
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_allocate_owner_id(u32 table_index)
-{
- acpi_status status = AE_BAD_PARAMETER;
-
- ACPI_FUNCTION_TRACE(tb_allocate_owner_id);
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (table_index < acpi_gbl_root_table_list.count) {
- status = acpi_ut_allocate_owner_id
- (&(acpi_gbl_root_table_list.tables[table_index].owner_id));
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_release_owner_id
- *
- * PARAMETERS: table_index - Table index
- *
- * RETURN: Status
- *
- * DESCRIPTION: Releases owner_id in table_desc
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_release_owner_id(u32 table_index)
-{
- acpi_status status = AE_BAD_PARAMETER;
-
- ACPI_FUNCTION_TRACE(tb_release_owner_id);
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (table_index < acpi_gbl_root_table_list.count) {
- acpi_ut_release_owner_id(&
- (acpi_gbl_root_table_list.
- tables[table_index].owner_id));
- status = AE_OK;
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_get_owner_id
- *
- * PARAMETERS: table_index - Table index
- * owner_id - Where the table owner_id is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: returns owner_id for the ACPI table
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id)
-{
- acpi_status status = AE_BAD_PARAMETER;
-
- ACPI_FUNCTION_TRACE(tb_get_owner_id);
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (table_index < acpi_gbl_root_table_list.count) {
- *owner_id =
- acpi_gbl_root_table_list.tables[table_index].owner_id;
- status = AE_OK;
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_is_table_loaded
- *
- * PARAMETERS: table_index - Table index
- *
- * RETURN: Table Loaded Flag
- *
- ******************************************************************************/
-
-u8 acpi_tb_is_table_loaded(u32 table_index)
-{
- u8 is_loaded = FALSE;
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (table_index < acpi_gbl_root_table_list.count) {
- is_loaded = (u8)
- (acpi_gbl_root_table_list.tables[table_index].
- flags & ACPI_TABLE_IS_LOADED);
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return (is_loaded);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_set_table_loaded_flag
- *
- * PARAMETERS: table_index - Table index
- * is_loaded - TRUE if table is loaded, FALSE otherwise
- *
- * RETURN: None
- *
- * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
- *
- ******************************************************************************/
-
-void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded)
-{
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (table_index < acpi_gbl_root_table_list.count) {
- if (is_loaded) {
- acpi_gbl_root_table_list.tables[table_index].flags |=
- ACPI_TABLE_IS_LOADED;
- } else {
- acpi_gbl_root_table_list.tables[table_index].flags &=
- ~ACPI_TABLE_IS_LOADED;
- }
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: tbutils - table utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbutils")
-
-/* Local prototypes */
-static acpi_physical_address
-acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_check_xsdt
- *
- * PARAMETERS: address - Pointer to the XSDT
- *
- * RETURN: status
- * AE_OK - XSDT is okay
- * AE_NO_MEMORY - can't map XSDT
- * AE_INVALID_TABLE_LENGTH - invalid table length
- * AE_NULL_ENTRY - XSDT has NULL entry
- *
- * DESCRIPTION: validate XSDT
-******************************************************************************/
-
-static acpi_status
-acpi_tb_check_xsdt(acpi_physical_address address)
-{
- struct acpi_table_header *table;
- u32 length;
- u64 xsdt_entry_address;
- u8 *table_entry;
- u32 table_count;
- int i;
-
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table)
- return AE_NO_MEMORY;
-
- length = table->length;
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
- if (length < sizeof(struct acpi_table_header))
- return AE_INVALID_TABLE_LENGTH;
-
- table = acpi_os_map_memory(address, length);
- if (!table)
- return AE_NO_MEMORY;
-
- /* Calculate the number of tables described in XSDT */
- table_count =
- (u32) ((table->length -
- sizeof(struct acpi_table_header)) / sizeof(u64));
- table_entry =
- ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
- for (i = 0; i < table_count; i++) {
- ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry);
- if (!xsdt_entry_address) {
- /* XSDT has NULL entry */
- break;
- }
- table_entry += sizeof(u64);
- }
- acpi_os_unmap_memory(table, length);
-
- if (i < table_count)
- return AE_NULL_ENTRY;
- else
- return AE_OK;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_initialize_facs
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global
- * for accessing the Global Lock and Firmware Waking Vector
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_initialize_facs(void)
-{
- acpi_status status;
-
- status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_table_header,
- &acpi_gbl_FACS));
- return status;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_tables_loaded
- *
- * PARAMETERS: None
- *
- * RETURN: TRUE if required ACPI tables are loaded
- *
- * DESCRIPTION: Determine if the minimum required ACPI tables are present
- * (FADT, FACS, DSDT)
- *
- ******************************************************************************/
-
-u8 acpi_tb_tables_loaded(void)
-{
-
- if (acpi_gbl_root_table_list.count >= 3) {
- return (TRUE);
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_print_table_header
- *
- * PARAMETERS: Address - Table physical address
- * Header - Table header
- *
- * RETURN: None
- *
- * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
- *
- ******************************************************************************/
-
-void
-acpi_tb_print_table_header(acpi_physical_address address,
- struct acpi_table_header *header)
-{
-
- if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) {
-
- /* FACS only has signature and length fields of common table header */
-
- ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X",
- header->signature, (unsigned long)address,
- header->length));
- } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
-
- /* RSDP has no common fields */
-
- ACPI_INFO((AE_INFO, "RSDP %08lX, %04X (r%d %6.6s)",
- (unsigned long)address,
- (ACPI_CAST_PTR(struct acpi_table_rsdp, header)->
- revision >
- 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->length : 20,
- ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->revision,
- ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->oem_id));
- } else {
- /* Standard ACPI table with full common header */
-
- ACPI_INFO((AE_INFO,
- "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)",
- header->signature, (unsigned long)address,
- header->length, header->revision, header->oem_id,
- header->oem_table_id, header->oem_revision,
- header->asl_compiler_id,
- header->asl_compiler_revision));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_validate_checksum
- *
- * PARAMETERS: Table - ACPI table to verify
- * Length - Length of entire table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
- * exception on bad checksum.
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
-{
- u8 checksum;
-
- /* Compute the checksum on the table */
-
- checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
-
- /* Checksum ok? (should be zero) */
-
- if (checksum) {
- ACPI_WARNING((AE_INFO,
- "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X",
- table->signature, table->checksum,
- (u8) (table->checksum - checksum)));
-
-#if (ACPI_CHECKSUM_ABORT)
-
- return (AE_BAD_CHECKSUM);
-#endif
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_checksum
- *
- * PARAMETERS: Buffer - Pointer to memory region to be checked
- * Length - Length of this memory region
- *
- * RETURN: Checksum (u8)
- *
- * DESCRIPTION: Calculates circular checksum of memory region.
- *
- ******************************************************************************/
-
-u8 acpi_tb_checksum(u8 *buffer, u32 length)
-{
- u8 sum = 0;
- u8 *end = buffer + length;
-
- while (buffer < end) {
- sum = (u8) (sum + *(buffer++));
- }
-
- return sum;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_install_table
- *
- * PARAMETERS: Address - Physical address of DSDT or FACS
- * Flags - Flags
- * Signature - Table signature, NULL if no need to
- * match
- * table_index - Index into root table array
- *
- * RETURN: None
- *
- * DESCRIPTION: Install an ACPI table into the global data structure.
- *
- ******************************************************************************/
-
-void
-acpi_tb_install_table(acpi_physical_address address,
- u8 flags, char *signature, u32 table_index)
-{
- struct acpi_table_header *table;
-
- if (!address) {
- ACPI_ERROR((AE_INFO,
- "Null physical address for ACPI table [%s]",
- signature));
- return;
- }
-
- /* Map just the table header */
-
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table) {
- return;
- }
-
- /* If a particular signature is expected, signature must match */
-
- if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
- ACPI_ERROR((AE_INFO,
- "Invalid signature 0x%X for ACPI table [%s]",
- *ACPI_CAST_PTR(u32, table->signature), signature));
- goto unmap_and_exit;
- }
-
- /* Initialize the table entry */
-
- acpi_gbl_root_table_list.tables[table_index].address = address;
- acpi_gbl_root_table_list.tables[table_index].length = table->length;
- acpi_gbl_root_table_list.tables[table_index].flags = flags;
-
- ACPI_MOVE_32_TO_32(&
- (acpi_gbl_root_table_list.tables[table_index].
- signature), table->signature);
-
- acpi_tb_print_table_header(address, table);
-
- if (table_index == ACPI_TABLE_INDEX_DSDT) {
-
- /* Global integer width is based upon revision of the DSDT */
-
- acpi_ut_set_integer_width(table->revision);
- }
-
- unmap_and_exit:
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_get_root_table_entry
- *
- * PARAMETERS: table_entry - Pointer to the RSDT/XSDT table entry
- * table_entry_size - sizeof 32 or 64 (RSDT or XSDT)
- *
- * RETURN: Physical address extracted from the root table
- *
- * DESCRIPTION: Get one root table entry. Handles 32-bit and 64-bit cases on
- * both 32-bit and 64-bit platforms
- *
- * NOTE: acpi_physical_address is 32-bit on 32-bit platforms, 64-bit on
- * 64-bit platforms.
- *
- ******************************************************************************/
-
-static acpi_physical_address
-acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
-{
- u64 address64;
-
- /*
- * Get the table physical address (32-bit for RSDT, 64-bit for XSDT):
- * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT
- */
- if (table_entry_size == sizeof(u32)) {
- /*
- * 32-bit platform, RSDT: Return 32-bit table entry
- * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return
- */
- return ((acpi_physical_address)
- (*ACPI_CAST_PTR(u32, table_entry)));
- } else {
- /*
- * 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return
- * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit
- */
- ACPI_MOVE_64_TO_64(&address64, table_entry);
-
-#if ACPI_MACHINE_WIDTH == 32
- if (address64 > ACPI_UINT32_MAX) {
-
- /* Will truncate 64-bit address to 32 bits, issue warning */
-
- ACPI_WARNING((AE_INFO,
- "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating",
- ACPI_FORMAT_UINT64(address64)));
- }
-#endif
- return ((acpi_physical_address) (address64));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_parse_root_table
- *
- * PARAMETERS: Rsdp - Pointer to the RSDP
- * Flags - Flags
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to parse the Root System Description
- * Table (RSDT or XSDT)
- *
- * NOTE: Tables are mapped (not copied) for efficiency. The FACS must
- * be mapped and cannot be copied because it contains the actual
- * memory location of the ACPI Global Lock.
- *
- ******************************************************************************/
-
-acpi_status __init
-acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
-{
- struct acpi_table_rsdp *rsdp;
- u32 table_entry_size;
- u32 i;
- u32 table_count;
- struct acpi_table_header *table;
- acpi_physical_address address;
- acpi_physical_address uninitialized_var(rsdt_address);
- u32 length;
- u8 *table_entry;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(tb_parse_root_table);
-
- /*
- * Map the entire RSDP and extract the address of the RSDT or XSDT
- */
- rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp));
- if (!rsdp) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- acpi_tb_print_table_header(rsdp_address,
- ACPI_CAST_PTR(struct acpi_table_header,
- rsdp));
-
- /* Differentiate between RSDT and XSDT root tables */
-
- if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
- /*
- * Root table is an XSDT (64-bit physical addresses). We must use the
- * XSDT if the revision is > 1 and the XSDT pointer is present, as per
- * the ACPI specification.
- */
- address = (acpi_physical_address) rsdp->xsdt_physical_address;
- table_entry_size = sizeof(u64);
- rsdt_address = (acpi_physical_address)
- rsdp->rsdt_physical_address;
- } else {
- /* Root table is an RSDT (32-bit physical addresses) */
-
- address = (acpi_physical_address) rsdp->rsdt_physical_address;
- table_entry_size = sizeof(u32);
- }
-
- /*
- * It is not possible to map more than one entry in some environments,
- * so unmap the RSDP here before mapping other tables
- */
- acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
-
- if (table_entry_size == sizeof(u64)) {
- if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) {
- /* XSDT has NULL entry, RSDT is used */
- address = rsdt_address;
- table_entry_size = sizeof(u32);
- ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, "
- "using RSDT"));
- }
- }
- /* Map the RSDT/XSDT table header to get the full table length */
-
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- acpi_tb_print_table_header(address, table);
-
- /* Get the length of the full table, verify length and map entire table */
-
- length = table->length;
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-
- if (length < sizeof(struct acpi_table_header)) {
- ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT",
- length));
- return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
- }
-
- table = acpi_os_map_memory(address, length);
- if (!table) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Validate the root table checksum */
-
- status = acpi_tb_verify_checksum(table, length);
- if (ACPI_FAILURE(status)) {
- acpi_os_unmap_memory(table, length);
- return_ACPI_STATUS(status);
- }
-
- /* Calculate the number of tables described in the root table */
-
- table_count =
- (u32) ((table->length -
- sizeof(struct acpi_table_header)) / table_entry_size);
-
- /*
- * First two entries in the table array are reserved for the DSDT and FACS,
- * which are not actually present in the RSDT/XSDT - they come from the FADT
- */
- table_entry =
- ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
- acpi_gbl_root_table_list.count = 2;
-
- /*
- * Initialize the root table array from the RSDT/XSDT
- */
- for (i = 0; i < table_count; i++) {
- if (acpi_gbl_root_table_list.count >=
- acpi_gbl_root_table_list.size) {
-
- /* There is no more room in the root table array, attempt resize */
-
- status = acpi_tb_resize_root_table_list();
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO,
- "Truncating %u table entries!",
- (unsigned)
- (acpi_gbl_root_table_list.size -
- acpi_gbl_root_table_list.
- count)));
- break;
- }
- }
-
- /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */
-
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
- address =
- acpi_tb_get_root_table_entry(table_entry, table_entry_size);
-
- table_entry += table_entry_size;
- acpi_gbl_root_table_list.count++;
- }
-
- /*
- * It is not possible to map more than one entry in some environments,
- * so unmap the root table here before mapping other tables
- */
- acpi_os_unmap_memory(table, length);
-
- /*
- * Complete the initialization of the root table array by examining
- * the header of each table
- */
- for (i = 2; i < acpi_gbl_root_table_list.count; i++) {
- acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
- address, flags, NULL, i);
-
- /* Special case for FADT - get the DSDT and FACS */
-
- if (ACPI_COMPARE_NAME
- (&acpi_gbl_root_table_list.tables[i].signature,
- ACPI_SIG_FADT)) {
- acpi_tb_parse_fadt(i, flags);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: tbxface - Public interfaces to the ACPI subsystem
- * ACPI table oriented interfaces
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbxface")
-
-/* Local prototypes */
-static acpi_status acpi_tb_load_namespace(void);
-
-static int no_auto_ssdt;
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_allocate_root_table
- *
- * PARAMETERS: initial_table_count - Size of initial_table_array, in number of
- * struct acpi_table_desc structures
- *
- * RETURN: Status
- *
- * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and
- * acpi_initialize_tables.
- *
- ******************************************************************************/
-
-acpi_status acpi_allocate_root_table(u32 initial_table_count)
-{
-
- acpi_gbl_root_table_list.size = initial_table_count;
- acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE;
-
- return (acpi_tb_resize_root_table_list());
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_initialize_tables
- *
- * PARAMETERS: initial_table_array - Pointer to an array of pre-allocated
- * struct acpi_table_desc structures. If NULL, the
- * array is dynamically allocated.
- * initial_table_count - Size of initial_table_array, in number of
- * struct acpi_table_desc structures
- * allow_realloc - Flag to tell Table Manager if resize of
- * pre-allocated array is allowed. Ignored
- * if initial_table_array is NULL.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT.
- *
- * NOTE: Allows static allocation of the initial table array in order
- * to avoid the use of dynamic memory in confined environments
- * such as the kernel boot sequence where it may not be available.
- *
- * If the host OS memory managers are initialized, use NULL for
- * initial_table_array, and the table will be dynamically allocated.
- *
- ******************************************************************************/
-
-acpi_status __init
-acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
- u32 initial_table_count, u8 allow_resize)
-{
- acpi_physical_address rsdp_address;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_initialize_tables);
-
- /*
- * Set up the Root Table Array
- * Allocate the table array if requested
- */
- if (!initial_table_array) {
- status = acpi_allocate_root_table(initial_table_count);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- } else {
- /* Root Table Array has been statically allocated by the host */
-
- ACPI_MEMSET(initial_table_array, 0,
- (acpi_size) initial_table_count *
- sizeof(struct acpi_table_desc));
-
- acpi_gbl_root_table_list.tables = initial_table_array;
- acpi_gbl_root_table_list.size = initial_table_count;
- acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN;
- if (allow_resize) {
- acpi_gbl_root_table_list.flags |=
- ACPI_ROOT_ALLOW_RESIZE;
- }
- }
-
- /* Get the address of the RSDP */
-
- rsdp_address = acpi_os_get_root_pointer();
- if (!rsdp_address) {
- return_ACPI_STATUS(AE_NOT_FOUND);
- }
-
- /*
- * Get the root table (RSDT or XSDT) and extract all entries to the local
- * Root Table Array. This array contains the information of the RSDT/XSDT
- * in a common, more useable format.
- */
- status =
- acpi_tb_parse_root_table(rsdp_address, ACPI_TABLE_ORIGIN_MAPPED);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_reallocate_root_table
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
- * root list from the previously provided scratch area. Should
- * be called once dynamic memory allocation is available in the
- * kernel
- *
- ******************************************************************************/
-acpi_status acpi_reallocate_root_table(void)
-{
- struct acpi_table_desc *tables;
- acpi_size new_size;
-
- ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
-
- /*
- * Only reallocate the root table if the host provided a static buffer
- * for the table array in the call to acpi_initialize_tables.
- */
- if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- new_size = ((acpi_size) acpi_gbl_root_table_list.count +
- ACPI_ROOT_TABLE_SIZE_INCREMENT) *
- sizeof(struct acpi_table_desc);
-
- /* Create new array and copy the old array */
-
- tables = ACPI_ALLOCATE_ZEROED(new_size);
- if (!tables) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size);
-
- acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count;
- acpi_gbl_root_table_list.tables = tables;
- acpi_gbl_root_table_list.flags =
- ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_load_table
- *
- * PARAMETERS: table_ptr - pointer to a buffer containing the entire
- * table to be loaded
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to load a table from the caller's
- * buffer. The buffer must contain an entire ACPI Table including
- * a valid header. The header fields will be verified, and if it
- * is determined that the table is invalid, the call will fail.
- *
- ******************************************************************************/
-acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
-{
- acpi_status status;
- u32 table_index;
- struct acpi_table_desc table_desc;
-
- if (!table_ptr)
- return AE_BAD_PARAMETER;
-
- ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
- table_desc.pointer = table_ptr;
- table_desc.length = table_ptr->length;
- table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN;
-
- /*
- * Install the new table into the local data structures
- */
- status = acpi_tb_add_table(&table_desc, &table_index);
- if (ACPI_FAILURE(status)) {
- return status;
- }
- status = acpi_ns_load_table(table_index, acpi_gbl_root_node);
- return status;
-}
-
-ACPI_EXPORT_SYMBOL(acpi_load_table)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_get_table_header
- *
- * PARAMETERS: Signature - ACPI signature of needed table
- * Instance - Which instance (for SSDTs)
- * out_table_header - The pointer to the table header to fill
- *
- * RETURN: Status and pointer to mapped table header
- *
- * DESCRIPTION: Finds an ACPI table header.
- *
- * NOTE: Caller is responsible in unmapping the header with
- * acpi_os_unmap_memory
- *
- *****************************************************************************/
-acpi_status
-acpi_get_table_header(char *signature,
- u32 instance, struct acpi_table_header *out_table_header)
-{
- u32 i;
- u32 j;
- struct acpi_table_header *header;
-
- /* Parameter validation */
-
- if (!signature || !out_table_header) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Walk the root table list
- */
- for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) {
- if (!ACPI_COMPARE_NAME
- (&(acpi_gbl_root_table_list.tables[i].signature),
- signature)) {
- continue;
- }
-
- if (++j < instance) {
- continue;
- }
-
- if (!acpi_gbl_root_table_list.tables[i].pointer) {
- if ((acpi_gbl_root_table_list.tables[i].
- flags & ACPI_TABLE_ORIGIN_MASK) ==
- ACPI_TABLE_ORIGIN_MAPPED) {
- header =
- acpi_os_map_memory(acpi_gbl_root_table_list.
- tables[i].address,
- sizeof(struct
- acpi_table_header));
- if (!header) {
- return AE_NO_MEMORY;
- }
- ACPI_MEMCPY(out_table_header, header,
- sizeof(struct acpi_table_header));
- acpi_os_unmap_memory(header,
- sizeof(struct
- acpi_table_header));
- } else {
- return AE_NOT_FOUND;
- }
- } else {
- ACPI_MEMCPY(out_table_header,
- acpi_gbl_root_table_list.tables[i].pointer,
- sizeof(struct acpi_table_header));
- }
- return (AE_OK);
- }
-
- return (AE_NOT_FOUND);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_table_header)
-
-/******************************************************************************
- *
- * FUNCTION: acpi_unload_table_id
- *
- * PARAMETERS: id - Owner ID of the table to be removed.
- *
- * RETURN: Status
- *
- * DESCRIPTION: This routine is used to force the unload of a table (by id)
- *
- ******************************************************************************/
-acpi_status acpi_unload_table_id(acpi_owner_id id)
-{
- int i;
- acpi_status status = AE_NOT_EXIST;
-
- ACPI_FUNCTION_TRACE(acpi_unload_table_id);
-
- /* Find table in the global table list */
- for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
- if (id != acpi_gbl_root_table_list.tables[i].owner_id) {
- continue;
- }
- /*
- * Delete all namespace objects owned by this table. Note that these
- * objects can appear anywhere in the namespace by virtue of the AML
- * "Scope" operator. Thus, we need to track ownership by an ID, not
- * simply a position within the hierarchy
- */
- acpi_tb_delete_namespace_by_owner(i);
- status = acpi_tb_release_owner_id(i);
- acpi_tb_set_table_loaded_flag(i, FALSE);
- break;
- }
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_table
- *
- * PARAMETERS: Signature - ACPI signature of needed table
- * Instance - Which instance (for SSDTs)
- * out_table - Where the pointer to the table is returned
- *
- * RETURN: Status and pointer to table
- *
- * DESCRIPTION: Finds and verifies an ACPI table.
- *
- *****************************************************************************/
-acpi_status
-acpi_get_table(char *signature,
- u32 instance, struct acpi_table_header **out_table)
-{
- u32 i;
- u32 j;
- acpi_status status;
-
- /* Parameter validation */
-
- if (!signature || !out_table) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Walk the root table list
- */
- for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) {
- if (!ACPI_COMPARE_NAME
- (&(acpi_gbl_root_table_list.tables[i].signature),
- signature)) {
- continue;
- }
-
- if (++j < instance) {
- continue;
- }
-
- status =
- acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
- if (ACPI_SUCCESS(status)) {
- *out_table = acpi_gbl_root_table_list.tables[i].pointer;
- }
-
- if (!acpi_gbl_permanent_mmap) {
- acpi_gbl_root_table_list.tables[i].pointer = NULL;
- }
-
- return (status);
- }
-
- return (AE_NOT_FOUND);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_table)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_table_by_index
- *
- * PARAMETERS: table_index - Table index
- * Table - Where the pointer to the table is returned
- *
- * RETURN: Status and pointer to the table
- *
- * DESCRIPTION: Obtain a table by an index into the global table list.
- *
- ******************************************************************************/
-acpi_status
-acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_get_table_by_index);
-
- /* Parameter validation */
-
- if (!table) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-
- /* Validate index */
-
- if (table_index >= acpi_gbl_root_table_list.count) {
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (!acpi_gbl_root_table_list.tables[table_index].pointer) {
-
- /* Table is not mapped, map it */
-
- status =
- acpi_tb_verify_table(&acpi_gbl_root_table_list.
- tables[table_index]);
- if (ACPI_FAILURE(status)) {
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
- }
- }
-
- *table = acpi_gbl_root_table_list.tables[table_index].pointer;
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_load_namespace
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
- * the RSDT/XSDT.
- *
- ******************************************************************************/
-static acpi_status acpi_tb_load_namespace(void)
-{
- acpi_status status;
- struct acpi_table_header *table;
- u32 i;
-
- ACPI_FUNCTION_TRACE(tb_load_namespace);
-
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-
- /*
- * Load the namespace. The DSDT is required, but any SSDT and PSDT tables
- * are optional.
- */
- if (!acpi_gbl_root_table_list.count ||
- !ACPI_COMPARE_NAME(&
- (acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_DSDT].signature),
- ACPI_SIG_DSDT)
- ||
- ACPI_FAILURE(acpi_tb_verify_table
- (&acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_DSDT]))) {
- status = AE_NO_ACPI_TABLES;
- goto unlock_and_exit;
- }
-
- /*
- * Find DSDT table
- */
- status =
- acpi_os_table_override(acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_DSDT].pointer,
- &table);
- if (ACPI_SUCCESS(status) && table) {
- /*
- * DSDT table has been found
- */
- acpi_tb_delete_table(&acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_DSDT]);
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer =
- table;
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length =
- table->length;
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags =
- ACPI_TABLE_ORIGIN_UNKNOWN;
-
- ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS"));
- acpi_tb_print_table_header(0, table);
-
- if (no_auto_ssdt == 0) {
- printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"\n");
- }
- }
-
- status =
- acpi_tb_verify_table(&acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_DSDT]);
- if (ACPI_FAILURE(status)) {
-
- /* A valid DSDT is required */
-
- status = AE_NO_ACPI_TABLES;
- goto unlock_and_exit;
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-
- /*
- * Load and parse tables.
- */
- status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Load any SSDT or PSDT tables. Note: Loop leaves tables locked
- */
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
- if ((!ACPI_COMPARE_NAME
- (&(acpi_gbl_root_table_list.tables[i].signature),
- ACPI_SIG_SSDT)
- &&
- !ACPI_COMPARE_NAME(&
- (acpi_gbl_root_table_list.tables[i].
- signature), ACPI_SIG_PSDT))
- ||
- ACPI_FAILURE(acpi_tb_verify_table
- (&acpi_gbl_root_table_list.tables[i]))) {
- continue;
- }
-
- if (no_auto_ssdt) {
- printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
- continue;
- }
-
- /* Ignore errors while loading tables, get as many as possible */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- (void)acpi_ns_load_table(i, acpi_gbl_root_node);
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_load_tables
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT
- *
- ******************************************************************************/
-
-acpi_status acpi_load_tables(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_load_tables);
-
- /*
- * Load the namespace from the tables
- */
- status = acpi_tb_load_namespace();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While loading namespace from ACPI tables"));
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_load_tables)
-
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_table_handler
- *
- * PARAMETERS: Handler - Table event handler
- * Context - Value passed to the handler on each event
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install table event handler
- *
- ******************************************************************************/
-acpi_status
-acpi_install_table_handler(acpi_tbl_handler handler, void *context)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_table_handler);
-
- if (!handler) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Don't allow more than one handler */
-
- if (acpi_gbl_table_handler) {
- status = AE_ALREADY_EXISTS;
- goto cleanup;
- }
-
- /* Install the handler */
-
- acpi_gbl_table_handler = handler;
- acpi_gbl_table_handler_context = context;
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_table_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_table_handler
- *
- * PARAMETERS: Handler - Table event handler that was installed
- * previously.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove table event handler
- *
- ******************************************************************************/
-acpi_status acpi_remove_table_handler(acpi_tbl_handler handler)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_remove_table_handler);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Make sure that the installed handler is the same */
-
- if (!handler || handler != acpi_gbl_table_handler) {
- status = AE_BAD_PARAMETER;
- goto cleanup;
- }
-
- /* Remove the handler */
-
- acpi_gbl_table_handler = NULL;
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_table_handler)
-
-
-static int __init acpi_no_auto_ssdt_setup(char *s) {
-
- printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
-
- no_auto_ssdt = 1;
-
- return 1;
-}
-
-__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: tbxfroot - Find the root ACPI table (RSDT)
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbxfroot")
-
-/* Local prototypes */
-static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length);
-
-static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_validate_rsdp
- *
- * PARAMETERS: Rsdp - Pointer to unvalidated RSDP
- *
- * RETURN: Status
- *
- * DESCRIPTION: Validate the RSDP (ptr)
- *
- ******************************************************************************/
-
-static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
-{
- ACPI_FUNCTION_ENTRY();
-
- /*
- * The signature and checksum must both be correct
- *
- * Note: Sometimes there exists more than one RSDP in memory; the valid
- * RSDP has a valid checksum, all others have an invalid checksum.
- */
- if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1)
- != 0) {
-
- /* Nope, BAD Signature */
-
- return (AE_BAD_SIGNATURE);
- }
-
- /* Check the standard checksum */
-
- if (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
- return (AE_BAD_CHECKSUM);
- }
-
- /* Check extended checksum if table version >= 2 */
-
- if ((rsdp->revision >= 2) &&
- (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) {
- return (AE_BAD_CHECKSUM);
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_find_root_pointer
- *
- * PARAMETERS: table_address - Where the table pointer is returned
- *
- * RETURN: Status, RSDP physical address
- *
- * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
- * pointer structure. If it is found, set *RSDP to point to it.
- *
- * NOTE1: The RSDP must be either in the first 1_k of the Extended
- * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.)
- * Only a 32-bit physical address is necessary.
- *
- * NOTE2: This function is always available, regardless of the
- * initialization state of the rest of ACPI.
- *
- ******************************************************************************/
-
-acpi_status acpi_find_root_pointer(acpi_size *table_address)
-{
- u8 *table_ptr;
- u8 *mem_rover;
- u32 physical_address;
-
- ACPI_FUNCTION_TRACE(acpi_find_root_pointer);
-
- /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */
-
- table_ptr = acpi_os_map_memory((acpi_physical_address)
- ACPI_EBDA_PTR_LOCATION,
- ACPI_EBDA_PTR_LENGTH);
- if (!table_ptr) {
- ACPI_ERROR((AE_INFO,
- "Could not map memory at %8.8X for length %X",
- ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH));
-
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- ACPI_MOVE_16_TO_32(&physical_address, table_ptr);
-
- /* Convert segment part to physical address */
-
- physical_address <<= 4;
- acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH);
-
- /* EBDA present? */
-
- if (physical_address > 0x400) {
- /*
- * 1b) Search EBDA paragraphs (EBDA is required to be a
- * minimum of 1_k length)
- */
- table_ptr = acpi_os_map_memory((acpi_physical_address)
- physical_address,
- ACPI_EBDA_WINDOW_SIZE);
- if (!table_ptr) {
- ACPI_ERROR((AE_INFO,
- "Could not map memory at %8.8X for length %X",
- physical_address, ACPI_EBDA_WINDOW_SIZE));
-
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- mem_rover =
- acpi_tb_scan_memory_for_rsdp(table_ptr,
- ACPI_EBDA_WINDOW_SIZE);
- acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE);
-
- if (mem_rover) {
-
- /* Return the physical address */
-
- physical_address +=
- (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
-
- *table_address = physical_address;
- return_ACPI_STATUS(AE_OK);
- }
- }
-
- /*
- * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh
- */
- table_ptr = acpi_os_map_memory((acpi_physical_address)
- ACPI_HI_RSDP_WINDOW_BASE,
- ACPI_HI_RSDP_WINDOW_SIZE);
-
- if (!table_ptr) {
- ACPI_ERROR((AE_INFO,
- "Could not map memory at %8.8X for length %X",
- ACPI_HI_RSDP_WINDOW_BASE,
- ACPI_HI_RSDP_WINDOW_SIZE));
-
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- mem_rover =
- acpi_tb_scan_memory_for_rsdp(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
- acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
-
- if (mem_rover) {
-
- /* Return the physical address */
-
- physical_address = (u32)
- (ACPI_HI_RSDP_WINDOW_BASE +
- ACPI_PTR_DIFF(mem_rover, table_ptr));
-
- *table_address = physical_address;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* A valid RSDP was not found */
-
- ACPI_ERROR((AE_INFO, "A valid RSDP was not found"));
- return_ACPI_STATUS(AE_NOT_FOUND);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_scan_memory_for_rsdp
- *
- * PARAMETERS: start_address - Starting pointer for search
- * Length - Maximum length to search
- *
- * RETURN: Pointer to the RSDP if found, otherwise NULL.
- *
- * DESCRIPTION: Search a block of memory for the RSDP signature
- *
- ******************************************************************************/
-static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
-{
- acpi_status status;
- u8 *mem_rover;
- u8 *end_address;
-
- ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp);
-
- end_address = start_address + length;
-
- /* Search from given start address for the requested length */
-
- for (mem_rover = start_address; mem_rover < end_address;
- mem_rover += ACPI_RSDP_SCAN_STEP) {
-
- /* The RSDP signature and checksum must both be correct */
-
- status =
- acpi_tb_validate_rsdp(ACPI_CAST_PTR
- (struct acpi_table_rsdp, mem_rover));
- if (ACPI_SUCCESS(status)) {
-
- /* Sig and checksum valid, we have found a real RSDP */
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "RSDP located at physical address %p\n",
- mem_rover));
- return_PTR(mem_rover);
- }
-
- /* No sig match or bad checksum, keep searching */
- }
-
- /* Searched entire block, no RSDP was found */
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Searched entire block from %p, valid RSDP was not found\n",
- start_address));
- return_PTR(NULL);
-}
+++ /dev/null
-#
-# Makefile for all Linux ACPI interpreter subdirectories
-#
-
-obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
- utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
- utstate.o utmutex.o utobject.o utresrc.o
-
-EXTRA_CFLAGS += $(ACPI_CFLAGS)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utalloc - local memory allocation routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdebug.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utalloc")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_caches
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create all local caches
- *
- ******************************************************************************/
-acpi_status acpi_ut_create_caches(void)
-{
- acpi_status status;
-
- /* Object Caches, for frequently used objects */
-
- status =
- acpi_os_create_cache("Acpi-Namespace",
- sizeof(struct acpi_namespace_node),
- ACPI_MAX_NAMESPACE_CACHE_DEPTH,
- &acpi_gbl_namespace_cache);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- status =
- acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
- ACPI_MAX_STATE_CACHE_DEPTH,
- &acpi_gbl_state_cache);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- status =
- acpi_os_create_cache("Acpi-Parse",
- sizeof(struct acpi_parse_obj_common),
- ACPI_MAX_PARSE_CACHE_DEPTH,
- &acpi_gbl_ps_node_cache);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- status =
- acpi_os_create_cache("Acpi-ParseExt",
- sizeof(struct acpi_parse_obj_named),
- ACPI_MAX_EXTPARSE_CACHE_DEPTH,
- &acpi_gbl_ps_node_ext_cache);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- status =
- acpi_os_create_cache("Acpi-Operand",
- sizeof(union acpi_operand_object),
- ACPI_MAX_OBJECT_CACHE_DEPTH,
- &acpi_gbl_operand_cache);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Memory allocation lists */
-
- status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- status =
- acpi_ut_create_list("Acpi-Namespace",
- sizeof(struct acpi_namespace_node),
- &acpi_gbl_ns_node_list);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-#endif
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_caches
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Purge and delete all local caches
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_delete_caches(void)
-{
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
- char buffer[7];
-
- if (acpi_gbl_display_final_mem_stats) {
- ACPI_STRCPY(buffer, "MEMORY");
- (void)acpi_db_display_statistics(buffer);
- }
-#endif
-
- (void)acpi_os_delete_cache(acpi_gbl_namespace_cache);
- acpi_gbl_namespace_cache = NULL;
-
- (void)acpi_os_delete_cache(acpi_gbl_state_cache);
- acpi_gbl_state_cache = NULL;
-
- (void)acpi_os_delete_cache(acpi_gbl_operand_cache);
- acpi_gbl_operand_cache = NULL;
-
- (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache);
- acpi_gbl_ps_node_cache = NULL;
-
- (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
- acpi_gbl_ps_node_ext_cache = NULL;
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
-
- /* Debug only - display leftover memory allocation, if any */
-
- acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
-
- /* Free memory lists */
-
- ACPI_FREE(acpi_gbl_global_list);
- acpi_gbl_global_list = NULL;
-
- ACPI_FREE(acpi_gbl_ns_node_list);
- acpi_gbl_ns_node_list = NULL;
-#endif
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_validate_buffer
- *
- * PARAMETERS: Buffer - Buffer descriptor to be validated
- *
- * RETURN: Status
- *
- * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer)
-{
-
- /* Obviously, the structure pointer must be valid */
-
- if (!buffer) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Special semantics for the length */
-
- if ((buffer->length == ACPI_NO_BUFFER) ||
- (buffer->length == ACPI_ALLOCATE_BUFFER) ||
- (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) {
- return (AE_OK);
- }
-
- /* Length is valid, the buffer pointer must be also */
-
- if (!buffer->pointer) {
- return (AE_BAD_PARAMETER);
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_initialize_buffer
- *
- * PARAMETERS: Buffer - Buffer to be validated
- * required_length - Length needed
- *
- * RETURN: Status
- *
- * DESCRIPTION: Validate that the buffer is of the required length or
- * allocate a new buffer. Returned buffer is always zeroed.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
- acpi_size required_length)
-{
- acpi_size input_buffer_length;
-
- /* Parameter validation */
-
- if (!buffer || !required_length) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Buffer->Length is used as both an input and output parameter. Get the
- * input actual length and set the output required buffer length.
- */
- input_buffer_length = buffer->length;
- buffer->length = required_length;
-
- /*
- * The input buffer length contains the actual buffer length, or the type
- * of buffer to be allocated by this routine.
- */
- switch (input_buffer_length) {
- case ACPI_NO_BUFFER:
-
- /* Return the exception (and the required buffer length) */
-
- return (AE_BUFFER_OVERFLOW);
-
- case ACPI_ALLOCATE_BUFFER:
-
- /* Allocate a new buffer */
-
- buffer->pointer = acpi_os_allocate(required_length);
- break;
-
- case ACPI_ALLOCATE_LOCAL_BUFFER:
-
- /* Allocate a new buffer with local interface to allow tracking */
-
- buffer->pointer = ACPI_ALLOCATE(required_length);
- break;
-
- default:
-
- /* Existing buffer: Validate the size of the buffer */
-
- if (input_buffer_length < required_length) {
- return (AE_BUFFER_OVERFLOW);
- }
- break;
- }
-
- /* Validate allocation from above or input buffer pointer */
-
- if (!buffer->pointer) {
- return (AE_NO_MEMORY);
- }
-
- /* Have a valid buffer, clear it */
-
- ACPI_MEMSET(buffer->pointer, 0, required_length);
- return (AE_OK);
-}
-
-#ifdef NOT_USED_BY_LINUX
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_allocate
- *
- * PARAMETERS: Size - Size of the allocation
- * Component - Component type of caller
- * Module - Source file name of caller
- * Line - Line number of caller
- *
- * RETURN: Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of malloc.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate(acpi_size size,
- u32 component, const char *module, u32 line)
-{
- void *allocation;
-
- ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
-
- /* Check for an inadvertent size of zero bytes */
-
- if (!size) {
- ACPI_WARNING((module, line,
- "Attempt to allocate zero bytes, allocating 1 byte"));
- size = 1;
- }
-
- allocation = acpi_os_allocate(size);
- if (!allocation) {
-
- /* Report allocation error */
-
- ACPI_WARNING((module, line,
- "Could not allocate size %X", (u32) size));
-
- return_PTR(NULL);
- }
-
- return_PTR(allocation);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_allocate_zeroed
- *
- * PARAMETERS: Size - Size of the allocation
- * Component - Component type of caller
- * Module - Source file name of caller
- * Line - Line number of caller
- *
- * RETURN: Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate_zeroed(acpi_size size,
- u32 component, const char *module, u32 line)
-{
- void *allocation;
-
- ACPI_FUNCTION_ENTRY();
-
- allocation = acpi_ut_allocate(size, component, module, line);
- if (allocation) {
-
- /* Clear the memory block */
-
- ACPI_MEMSET(allocation, 0, size);
- }
-
- return (allocation);
-}
-#endif
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utcopy - Internal to external object translation utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utcopy")
-
-/* Local prototypes */
-static acpi_status
-acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
- union acpi_object *external_object,
- u8 * data_space, acpi_size * buffer_space_used);
-
-static acpi_status
-acpi_ut_copy_ielement_to_ielement(u8 object_type,
- union acpi_operand_object *source_object,
- union acpi_generic_state *state,
- void *context);
-
-static acpi_status
-acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
- u8 * buffer, acpi_size * space_used);
-
-static acpi_status
-acpi_ut_copy_esimple_to_isimple(union acpi_object *user_obj,
- union acpi_operand_object **return_obj);
-
-static acpi_status
-acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
- union acpi_operand_object **internal_object);
-
-static acpi_status
-acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
- union acpi_operand_object *dest_desc);
-
-static acpi_status
-acpi_ut_copy_ielement_to_eelement(u8 object_type,
- union acpi_operand_object *source_object,
- union acpi_generic_state *state,
- void *context);
-
-static acpi_status
-acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
- union acpi_operand_object *dest_obj,
- struct acpi_walk_state *walk_state);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_isimple_to_esimple
- *
- * PARAMETERS: internal_object - Source object to be copied
- * external_object - Where to return the copied object
- * data_space - Where object data is returned (such as
- * buffer and string data)
- * buffer_space_used - Length of data_space that was used
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to copy a simple internal object to
- * an external object.
- *
- * The data_space buffer is assumed to have sufficient space for
- * the object.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
- union acpi_object *external_object,
- u8 * data_space, acpi_size * buffer_space_used)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple);
-
- *buffer_space_used = 0;
-
- /*
- * Check for NULL object case (could be an uninitialized
- * package element)
- */
- if (!internal_object) {
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Always clear the external object */
-
- ACPI_MEMSET(external_object, 0, sizeof(union acpi_object));
-
- /*
- * In general, the external object will be the same type as
- * the internal object
- */
- external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
-
- /* However, only a limited number of external types are supported */
-
- switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
- case ACPI_TYPE_STRING:
-
- external_object->string.pointer = (char *)data_space;
- external_object->string.length = internal_object->string.length;
- *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
- internal_object->
- string.
- length + 1);
-
- ACPI_MEMCPY((void *)data_space,
- (void *)internal_object->string.pointer,
- (acpi_size) internal_object->string.length + 1);
- break;
-
- case ACPI_TYPE_BUFFER:
-
- external_object->buffer.pointer = data_space;
- external_object->buffer.length = internal_object->buffer.length;
- *buffer_space_used =
- ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string.
- length);
-
- ACPI_MEMCPY((void *)data_space,
- (void *)internal_object->buffer.pointer,
- internal_object->buffer.length);
- break;
-
- case ACPI_TYPE_INTEGER:
-
- external_object->integer.value = internal_object->integer.value;
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- /* This is an object reference. */
-
- switch (internal_object->reference.class) {
- case ACPI_REFCLASS_NAME:
-
- /*
- * For namepath, return the object handle ("reference")
- * We are referring to the namespace node
- */
- external_object->reference.handle =
- internal_object->reference.node;
- external_object->reference.actual_type =
- acpi_ns_get_type(internal_object->reference.node);
- break;
-
- default:
-
- /* All other reference types are unsupported */
-
- return_ACPI_STATUS(AE_TYPE);
- }
- break;
-
- case ACPI_TYPE_PROCESSOR:
-
- external_object->processor.proc_id =
- internal_object->processor.proc_id;
- external_object->processor.pblk_address =
- internal_object->processor.address;
- external_object->processor.pblk_length =
- internal_object->processor.length;
- break;
-
- case ACPI_TYPE_POWER:
-
- external_object->power_resource.system_level =
- internal_object->power_resource.system_level;
-
- external_object->power_resource.resource_order =
- internal_object->power_resource.resource_order;
- break;
-
- default:
- /*
- * There is no corresponding external object type
- */
- ACPI_ERROR((AE_INFO,
- "Unsupported object type, cannot convert to external object: %s",
- acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
- (internal_object))));
-
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_ielement_to_eelement
- *
- * PARAMETERS: acpi_pkg_callback
- *
- * RETURN: Status
- *
- * DESCRIPTION: Copy one package element to another package element
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_ielement_to_eelement(u8 object_type,
- union acpi_operand_object *source_object,
- union acpi_generic_state *state,
- void *context)
-{
- acpi_status status = AE_OK;
- struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
- acpi_size object_space;
- u32 this_index;
- union acpi_object *target_object;
-
- ACPI_FUNCTION_ENTRY();
-
- this_index = state->pkg.index;
- target_object = (union acpi_object *)
- &((union acpi_object *)(state->pkg.dest_object))->package.
- elements[this_index];
-
- switch (object_type) {
- case ACPI_COPY_TYPE_SIMPLE:
-
- /*
- * This is a simple or null object
- */
- status = acpi_ut_copy_isimple_to_esimple(source_object,
- target_object,
- info->free_space,
- &object_space);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- break;
-
- case ACPI_COPY_TYPE_PACKAGE:
-
- /*
- * Build the package object
- */
- target_object->type = ACPI_TYPE_PACKAGE;
- target_object->package.count = source_object->package.count;
- target_object->package.elements =
- ACPI_CAST_PTR(union acpi_object, info->free_space);
-
- /*
- * Pass the new package object back to the package walk routine
- */
- state->pkg.this_target_obj = target_object;
-
- /*
- * Save space for the array of objects (Package elements)
- * update the buffer length counter
- */
- object_space = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
- target_object->
- package.count *
- sizeof(union
- acpi_object));
- break;
-
- default:
- return (AE_BAD_PARAMETER);
- }
-
- info->free_space += object_space;
- info->length += object_space;
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_ipackage_to_epackage
- *
- * PARAMETERS: internal_object - Pointer to the object we are returning
- * Buffer - Where the object is returned
- * space_used - Where the object length is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to place a package object in a user
- * buffer. A package object by definition contains other objects.
- *
- * The buffer is assumed to have sufficient space for the object.
- * The caller must have verified the buffer length needed using the
- * acpi_ut_get_object_size function before calling this function.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
- u8 * buffer, acpi_size * space_used)
-{
- union acpi_object *external_object;
- acpi_status status;
- struct acpi_pkg_info info;
-
- ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage);
-
- /*
- * First package at head of the buffer
- */
- external_object = ACPI_CAST_PTR(union acpi_object, buffer);
-
- /*
- * Free space begins right after the first package
- */
- info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
- info.free_space =
- buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
- info.object_space = 0;
- info.num_packages = 1;
-
- external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
- external_object->package.count = internal_object->package.count;
- external_object->package.elements = ACPI_CAST_PTR(union acpi_object,
- info.free_space);
-
- /*
- * Leave room for an array of ACPI_OBJECTS in the buffer
- * and move the free space past it
- */
- info.length += (acpi_size) external_object->package.count *
- ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
- info.free_space += external_object->package.count *
- ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
-
- status = acpi_ut_walk_package_tree(internal_object, external_object,
- acpi_ut_copy_ielement_to_eelement,
- &info);
-
- *space_used = info.length;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_iobject_to_eobject
- *
- * PARAMETERS: internal_object - The internal object to be converted
- * buffer_ptr - Where the object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to build an API object to be returned to
- * the caller.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object,
- struct acpi_buffer *ret_buffer)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject);
-
- if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) {
- /*
- * Package object: Copy all subobjects (including
- * nested packages)
- */
- status = acpi_ut_copy_ipackage_to_epackage(internal_object,
- ret_buffer->pointer,
- &ret_buffer->length);
- } else {
- /*
- * Build a simple object (no nested objects)
- */
- status = acpi_ut_copy_isimple_to_esimple(internal_object,
- ACPI_CAST_PTR(union
- acpi_object,
- ret_buffer->
- pointer),
- ACPI_ADD_PTR(u8,
- ret_buffer->
- pointer,
- ACPI_ROUND_UP_TO_NATIVE_WORD
- (sizeof
- (union
- acpi_object))),
- &ret_buffer->length);
- /*
- * build simple does not include the object size in the length
- * so we add it in here
- */
- ret_buffer->length += sizeof(union acpi_object);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_esimple_to_isimple
- *
- * PARAMETERS: external_object - The external object to be converted
- * ret_internal_object - Where the internal object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function copies an external object to an internal one.
- * NOTE: Pointers can be copied, we don't need to copy data.
- * (The pointers have to be valid in our address space no matter
- * what we do with them!)
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
- union acpi_operand_object **ret_internal_object)
-{
- union acpi_operand_object *internal_object;
-
- ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple);
-
- /*
- * Simple types supported are: String, Buffer, Integer
- */
- switch (external_object->type) {
- case ACPI_TYPE_STRING:
- case ACPI_TYPE_BUFFER:
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- internal_object = acpi_ut_create_internal_object((u8)
- external_object->
- type);
- if (!internal_object) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- break;
-
- case ACPI_TYPE_ANY: /* This is the case for a NULL object */
-
- *ret_internal_object = NULL;
- return_ACPI_STATUS(AE_OK);
-
- default:
- /* All other types are not supported */
-
- ACPI_ERROR((AE_INFO,
- "Unsupported object type, cannot convert to internal object: %s",
- acpi_ut_get_type_name(external_object->type)));
-
- return_ACPI_STATUS(AE_SUPPORT);
- }
-
- /* Must COPY string and buffer contents */
-
- switch (external_object->type) {
- case ACPI_TYPE_STRING:
-
- internal_object->string.pointer =
- ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string.
- length + 1);
- if (!internal_object->string.pointer) {
- goto error_exit;
- }
-
- ACPI_MEMCPY(internal_object->string.pointer,
- external_object->string.pointer,
- external_object->string.length);
-
- internal_object->string.length = external_object->string.length;
- break;
-
- case ACPI_TYPE_BUFFER:
-
- internal_object->buffer.pointer =
- ACPI_ALLOCATE_ZEROED(external_object->buffer.length);
- if (!internal_object->buffer.pointer) {
- goto error_exit;
- }
-
- ACPI_MEMCPY(internal_object->buffer.pointer,
- external_object->buffer.pointer,
- external_object->buffer.length);
-
- internal_object->buffer.length = external_object->buffer.length;
-
- /* Mark buffer data valid */
-
- internal_object->buffer.flags |= AOPOBJ_DATA_VALID;
- break;
-
- case ACPI_TYPE_INTEGER:
-
- internal_object->integer.value = external_object->integer.value;
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- /* TBD: should validate incoming handle */
-
- internal_object->reference.class = ACPI_REFCLASS_NAME;
- internal_object->reference.node =
- external_object->reference.handle;
- break;
-
- default:
- /* Other types can't get here */
- break;
- }
-
- *ret_internal_object = internal_object;
- return_ACPI_STATUS(AE_OK);
-
- error_exit:
- acpi_ut_remove_reference(internal_object);
- return_ACPI_STATUS(AE_NO_MEMORY);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_epackage_to_ipackage
- *
- * PARAMETERS: external_object - The external object to be converted
- * internal_object - Where the internal object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Copy an external package object to an internal package.
- * Handles nested packages.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
- union acpi_operand_object **internal_object)
-{
- acpi_status status = AE_OK;
- union acpi_operand_object *package_object;
- union acpi_operand_object **package_elements;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
-
- /* Create the package object */
-
- package_object =
- acpi_ut_create_package_object(external_object->package.count);
- if (!package_object) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- package_elements = package_object->package.elements;
-
- /*
- * Recursive implementation. Probably ok, since nested external packages
- * as parameters should be very rare.
- */
- for (i = 0; i < external_object->package.count; i++) {
- status =
- acpi_ut_copy_eobject_to_iobject(&external_object->package.
- elements[i],
- &package_elements[i]);
- if (ACPI_FAILURE(status)) {
-
- /* Truncate package and delete it */
-
- package_object->package.count = i;
- package_elements[i] = NULL;
- acpi_ut_remove_reference(package_object);
- return_ACPI_STATUS(status);
- }
- }
-
- /* Mark package data valid */
-
- package_object->package.flags |= AOPOBJ_DATA_VALID;
-
- *internal_object = package_object;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_eobject_to_iobject
- *
- * PARAMETERS: external_object - The external object to be converted
- * internal_object - Where the internal object is returned
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: Converts an external object to an internal object.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
- union acpi_operand_object **internal_object)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject);
-
- if (external_object->type == ACPI_TYPE_PACKAGE) {
- status =
- acpi_ut_copy_epackage_to_ipackage(external_object,
- internal_object);
- } else {
- /*
- * Build a simple object (no nested objects)
- */
- status =
- acpi_ut_copy_esimple_to_isimple(external_object,
- internal_object);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_simple_object
- *
- * PARAMETERS: source_desc - The internal object to be copied
- * dest_desc - New target object
- *
- * RETURN: Status
- *
- * DESCRIPTION: Simple copy of one internal object to another. Reference count
- * of the destination object is preserved.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
- union acpi_operand_object *dest_desc)
-{
- u16 reference_count;
- union acpi_operand_object *next_object;
-
- /* Save fields from destination that we don't want to overwrite */
-
- reference_count = dest_desc->common.reference_count;
- next_object = dest_desc->common.next_object;
-
- /* Copy the entire source object over the destination object */
-
- ACPI_MEMCPY((char *)dest_desc, (char *)source_desc,
- sizeof(union acpi_operand_object));
-
- /* Restore the saved fields */
-
- dest_desc->common.reference_count = reference_count;
- dest_desc->common.next_object = next_object;
-
- /* New object is not static, regardless of source */
-
- dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
-
- /* Handle the objects with extra data */
-
- switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
- case ACPI_TYPE_BUFFER:
- /*
- * Allocate and copy the actual buffer if and only if:
- * 1) There is a valid buffer pointer
- * 2) The buffer has a length > 0
- */
- if ((source_desc->buffer.pointer) &&
- (source_desc->buffer.length)) {
- dest_desc->buffer.pointer =
- ACPI_ALLOCATE(source_desc->buffer.length);
- if (!dest_desc->buffer.pointer) {
- return (AE_NO_MEMORY);
- }
-
- /* Copy the actual buffer data */
-
- ACPI_MEMCPY(dest_desc->buffer.pointer,
- source_desc->buffer.pointer,
- source_desc->buffer.length);
- }
- break;
-
- case ACPI_TYPE_STRING:
- /*
- * Allocate and copy the actual string if and only if:
- * 1) There is a valid string pointer
- * (Pointer to a NULL string is allowed)
- */
- if (source_desc->string.pointer) {
- dest_desc->string.pointer =
- ACPI_ALLOCATE((acpi_size) source_desc->string.
- length + 1);
- if (!dest_desc->string.pointer) {
- return (AE_NO_MEMORY);
- }
-
- /* Copy the actual string data */
-
- ACPI_MEMCPY(dest_desc->string.pointer,
- source_desc->string.pointer,
- (acpi_size) source_desc->string.length + 1);
- }
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
- /*
- * We copied the reference object, so we now must add a reference
- * to the object pointed to by the reference
- *
- * DDBHandle reference (from Load/load_table) is a special reference,
- * it does not have a Reference.Object, so does not need to
- * increase the reference count
- */
- if (source_desc->reference.class == ACPI_REFCLASS_TABLE) {
- break;
- }
-
- acpi_ut_add_reference(source_desc->reference.object);
- break;
-
- case ACPI_TYPE_REGION:
- /*
- * We copied the Region Handler, so we now must add a reference
- */
- if (dest_desc->region.handler) {
- acpi_ut_add_reference(dest_desc->region.handler);
- }
- break;
-
- default:
- /* Nothing to do for other simple objects */
- break;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_ielement_to_ielement
- *
- * PARAMETERS: acpi_pkg_callback
- *
- * RETURN: Status
- *
- * DESCRIPTION: Copy one package element to another package element
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_ielement_to_ielement(u8 object_type,
- union acpi_operand_object *source_object,
- union acpi_generic_state *state,
- void *context)
-{
- acpi_status status = AE_OK;
- u32 this_index;
- union acpi_operand_object **this_target_ptr;
- union acpi_operand_object *target_object;
-
- ACPI_FUNCTION_ENTRY();
-
- this_index = state->pkg.index;
- this_target_ptr = (union acpi_operand_object **)
- &state->pkg.dest_object->package.elements[this_index];
-
- switch (object_type) {
- case ACPI_COPY_TYPE_SIMPLE:
-
- /* A null source object indicates a (legal) null package element */
-
- if (source_object) {
- /*
- * This is a simple object, just copy it
- */
- target_object =
- acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE
- (source_object));
- if (!target_object) {
- return (AE_NO_MEMORY);
- }
-
- status =
- acpi_ut_copy_simple_object(source_object,
- target_object);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
-
- *this_target_ptr = target_object;
- } else {
- /* Pass through a null element */
-
- *this_target_ptr = NULL;
- }
- break;
-
- case ACPI_COPY_TYPE_PACKAGE:
-
- /*
- * This object is a package - go down another nesting level
- * Create and build the package object
- */
- target_object =
- acpi_ut_create_package_object(source_object->package.count);
- if (!target_object) {
- return (AE_NO_MEMORY);
- }
-
- target_object->common.flags = source_object->common.flags;
-
- /* Pass the new package object back to the package walk routine */
-
- state->pkg.this_target_obj = target_object;
-
- /* Store the object pointer in the parent package object */
-
- *this_target_ptr = target_object;
- break;
-
- default:
- return (AE_BAD_PARAMETER);
- }
-
- return (status);
-
- error_exit:
- acpi_ut_remove_reference(target_object);
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_ipackage_to_ipackage
- *
- * PARAMETERS: *source_obj - Pointer to the source package object
- * *dest_obj - Where the internal object is returned
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: This function is called to copy an internal package object
- * into another internal package object.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
- union acpi_operand_object *dest_obj,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage);
-
- dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj);
- dest_obj->common.flags = source_obj->common.flags;
- dest_obj->package.count = source_obj->package.count;
-
- /*
- * Create the object array and walk the source package tree
- */
- dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
- source_obj->package.
- count +
- 1) * sizeof(void *));
- if (!dest_obj->package.elements) {
- ACPI_ERROR((AE_INFO, "Package allocation failure"));
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /*
- * Copy the package element-by-element by walking the package "tree".
- * This handles nested packages of arbitrary depth.
- */
- status = acpi_ut_walk_package_tree(source_obj, dest_obj,
- acpi_ut_copy_ielement_to_ielement,
- walk_state);
- if (ACPI_FAILURE(status)) {
-
- /* On failure, delete the destination package object */
-
- acpi_ut_remove_reference(dest_obj);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_iobject_to_iobject
- *
- * PARAMETERS: walk_state - Current walk state
- * source_desc - The internal object to be copied
- * dest_desc - Where the copied object is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Copy an internal object to a new internal object
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc,
- union acpi_operand_object **dest_desc,
- struct acpi_walk_state *walk_state)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject);
-
- /* Create the top level object */
-
- *dest_desc =
- acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE(source_desc));
- if (!*dest_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Copy the object and possible subobjects */
-
- if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_PACKAGE) {
- status =
- acpi_ut_copy_ipackage_to_ipackage(source_desc, *dest_desc,
- walk_state);
- } else {
- status = acpi_ut_copy_simple_object(source_desc, *dest_desc);
- }
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utdebug - Debug print routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utdebug")
-#ifdef ACPI_DEBUG_OUTPUT
-static acpi_thread_id acpi_gbl_prev_thread_id;
-static char *acpi_gbl_fn_entry_str = "----Entry";
-static char *acpi_gbl_fn_exit_str = "----Exit-";
-
-/* Local prototypes */
-
-static const char *acpi_ut_trim_function_name(const char *function_name);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_init_stack_ptr_trace
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Save the current CPU stack pointer at subsystem startup
- *
- ******************************************************************************/
-
-void acpi_ut_init_stack_ptr_trace(void)
-{
- acpi_size current_sp;
-
- acpi_gbl_entry_stack_pointer = ¤t_sp;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_track_stack_ptr
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: Save the current CPU stack pointer
- *
- ******************************************************************************/
-
-void acpi_ut_track_stack_ptr(void)
-{
- acpi_size current_sp;
-
- if (¤t_sp < acpi_gbl_lowest_stack_pointer) {
- acpi_gbl_lowest_stack_pointer = ¤t_sp;
- }
-
- if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) {
- acpi_gbl_deepest_nesting = acpi_gbl_nesting_level;
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_trim_function_name
- *
- * PARAMETERS: function_name - Ascii string containing a procedure name
- *
- * RETURN: Updated pointer to the function name
- *
- * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
- * This allows compiler macros such as __func__ to be used
- * with no change to the debug output.
- *
- ******************************************************************************/
-
-static const char *acpi_ut_trim_function_name(const char *function_name)
-{
-
- /* All Function names are longer than 4 chars, check is safe */
-
- if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) {
-
- /* This is the case where the original source has not been modified */
-
- return (function_name + 4);
- }
-
- if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) {
-
- /* This is the case where the source has been 'linuxized' */
-
- return (function_name + 5);
- }
-
- return (function_name);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_debug_print
- *
- * PARAMETERS: requested_debug_level - Requested debug print level
- * line_number - Caller's line number (for error output)
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Format - Printf format field
- * ... - Optional printf arguments
- *
- * RETURN: None
- *
- * DESCRIPTION: Print error message with prefix consisting of the module name,
- * line number, and component ID.
- *
- ******************************************************************************/
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_debug_print(u32 requested_debug_level,
- u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id, const char *format, ...)
-{
- acpi_thread_id thread_id;
- va_list args;
-
- /*
- * Stay silent if the debug level or component ID is disabled
- */
- if (!(requested_debug_level & acpi_dbg_level) ||
- !(component_id & acpi_dbg_layer)) {
- return;
- }
-
- /*
- * Thread tracking and context switch notification
- */
- thread_id = acpi_os_get_thread_id();
- if (thread_id != acpi_gbl_prev_thread_id) {
- if (ACPI_LV_THREADS & acpi_dbg_level) {
- acpi_os_printf
- ("\n**** Context Switch from TID %lX to TID %lX ****\n\n",
- (unsigned long)acpi_gbl_prev_thread_id,
- (unsigned long)thread_id);
- }
-
- acpi_gbl_prev_thread_id = thread_id;
- }
-
- /*
- * Display the module name, current line number, thread ID (if requested),
- * current procedure nesting level, and the current procedure name
- */
- acpi_os_printf("%8s-%04ld ", module_name, line_number);
-
- if (ACPI_LV_THREADS & acpi_dbg_level) {
- acpi_os_printf("[%04lX] ", (unsigned long)thread_id);
- }
-
- acpi_os_printf("[%02ld] %-22.22s: ",
- acpi_gbl_nesting_level,
- acpi_ut_trim_function_name(function_name));
-
- va_start(args, format);
- acpi_os_vprintf(format, args);
- va_end(args);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_debug_print)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_debug_print_raw
- *
- * PARAMETERS: requested_debug_level - Requested debug print level
- * line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Format - Printf format field
- * ... - Optional printf arguments
- *
- * RETURN: None
- *
- * DESCRIPTION: Print message with no headers. Has same interface as
- * debug_print so that the same macros can be used.
- *
- ******************************************************************************/
-void ACPI_INTERNAL_VAR_XFACE
-acpi_debug_print_raw(u32 requested_debug_level,
- u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id, const char *format, ...)
-{
- va_list args;
-
- if (!(requested_debug_level & acpi_dbg_level) ||
- !(component_id & acpi_dbg_layer)) {
- return;
- }
-
- va_start(args, format);
- acpi_os_vprintf(format, args);
- va_end(args);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_debug_print_raw)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_trace
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- *
- * RETURN: None
- *
- * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level
- *
- ******************************************************************************/
-void
-acpi_ut_trace(u32 line_number,
- const char *function_name,
- const char *module_name, u32 component_id)
-{
-
- acpi_gbl_nesting_level++;
- acpi_ut_track_stack_ptr();
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s\n", acpi_gbl_fn_entry_str);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_ut_trace)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_trace_ptr
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Pointer - Pointer to display
- *
- * RETURN: None
- *
- * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level
- *
- ******************************************************************************/
-void
-acpi_ut_trace_ptr(u32 line_number,
- const char *function_name,
- const char *module_name, u32 component_id, void *pointer)
-{
- acpi_gbl_nesting_level++;
- acpi_ut_track_stack_ptr();
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s %p\n", acpi_gbl_fn_entry_str, pointer);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_trace_str
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * String - Additional string to display
- *
- * RETURN: None
- *
- * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level
- *
- ******************************************************************************/
-
-void
-acpi_ut_trace_str(u32 line_number,
- const char *function_name,
- const char *module_name, u32 component_id, char *string)
-{
-
- acpi_gbl_nesting_level++;
- acpi_ut_track_stack_ptr();
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s %s\n", acpi_gbl_fn_entry_str, string);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_trace_u32
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Integer - Integer to display
- *
- * RETURN: None
- *
- * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level
- *
- ******************************************************************************/
-
-void
-acpi_ut_trace_u32(u32 line_number,
- const char *function_name,
- const char *module_name, u32 component_id, u32 integer)
-{
-
- acpi_gbl_nesting_level++;
- acpi_ut_track_stack_ptr();
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s %08X\n", acpi_gbl_fn_entry_str, integer);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_exit
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- *
- * RETURN: None
- *
- * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level
- *
- ******************************************************************************/
-
-void
-acpi_ut_exit(u32 line_number,
- const char *function_name,
- const char *module_name, u32 component_id)
-{
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s\n", acpi_gbl_fn_exit_str);
-
- acpi_gbl_nesting_level--;
-}
-
-ACPI_EXPORT_SYMBOL(acpi_ut_exit)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_status_exit
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Status - Exit status code
- *
- * RETURN: None
- *
- * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level. Prints exit status also.
- *
- ******************************************************************************/
-void
-acpi_ut_status_exit(u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id, acpi_status status)
-{
-
- if (ACPI_SUCCESS(status)) {
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s %s\n", acpi_gbl_fn_exit_str,
- acpi_format_exception(status));
- } else {
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name,
- component_id, "%s ****Exception****: %s\n",
- acpi_gbl_fn_exit_str,
- acpi_format_exception(status));
- }
-
- acpi_gbl_nesting_level--;
-}
-
-ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_value_exit
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Value - Value to be printed with exit msg
- *
- * RETURN: None
- *
- * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level. Prints exit value also.
- *
- ******************************************************************************/
-void
-acpi_ut_value_exit(u32 line_number,
- const char *function_name,
- const char *module_name,
- u32 component_id, acpi_integer value)
-{
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s %8.8X%8.8X\n", acpi_gbl_fn_exit_str,
- ACPI_FORMAT_UINT64(value));
-
- acpi_gbl_nesting_level--;
-}
-
-ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_ptr_exit
- *
- * PARAMETERS: line_number - Caller's line number
- * function_name - Caller's procedure name
- * module_name - Caller's module name
- * component_id - Caller's component ID
- * Ptr - Pointer to display
- *
- * RETURN: None
- *
- * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is
- * set in debug_level. Prints exit value also.
- *
- ******************************************************************************/
-void
-acpi_ut_ptr_exit(u32 line_number,
- const char *function_name,
- const char *module_name, u32 component_id, u8 *ptr)
-{
-
- acpi_debug_print(ACPI_LV_FUNCTIONS,
- line_number, function_name, module_name, component_id,
- "%s %p\n", acpi_gbl_fn_exit_str, ptr);
-
- acpi_gbl_nesting_level--;
-}
-
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_dump_buffer
- *
- * PARAMETERS: Buffer - Buffer to dump
- * Count - Amount to dump, in bytes
- * Display - BYTE, WORD, DWORD, or QWORD display
- * component_iD - Caller's component ID
- *
- * RETURN: None
- *
- * DESCRIPTION: Generic dump buffer in both hex and ascii.
- *
- ******************************************************************************/
-
-void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display)
-{
- u32 i = 0;
- u32 j;
- u32 temp32;
- u8 buf_char;
-
- if (!buffer) {
- acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
- return;
- }
-
- if ((count < 4) || (count & 0x01)) {
- display = DB_BYTE_DISPLAY;
- }
-
- /* Nasty little dump buffer routine! */
-
- while (i < count) {
-
- /* Print current offset */
-
- acpi_os_printf("%6.4X: ", i);
-
- /* Print 16 hex chars */
-
- for (j = 0; j < 16;) {
- if (i + j >= count) {
-
- /* Dump fill spaces */
-
- acpi_os_printf("%*s", ((display * 2) + 1), " ");
- j += display;
- continue;
- }
-
- switch (display) {
- case DB_BYTE_DISPLAY:
- default: /* Default is BYTE display */
-
- acpi_os_printf("%02X ",
- buffer[(acpi_size) i + j]);
- break;
-
- case DB_WORD_DISPLAY:
-
- ACPI_MOVE_16_TO_32(&temp32,
- &buffer[(acpi_size) i + j]);
- acpi_os_printf("%04X ", temp32);
- break;
-
- case DB_DWORD_DISPLAY:
-
- ACPI_MOVE_32_TO_32(&temp32,
- &buffer[(acpi_size) i + j]);
- acpi_os_printf("%08X ", temp32);
- break;
-
- case DB_QWORD_DISPLAY:
-
- ACPI_MOVE_32_TO_32(&temp32,
- &buffer[(acpi_size) i + j]);
- acpi_os_printf("%08X", temp32);
-
- ACPI_MOVE_32_TO_32(&temp32,
- &buffer[(acpi_size) i + j +
- 4]);
- acpi_os_printf("%08X ", temp32);
- break;
- }
-
- j += display;
- }
-
- /*
- * Print the ASCII equivalent characters but watch out for the bad
- * unprintable ones (printable chars are 0x20 through 0x7E)
- */
- acpi_os_printf(" ");
- for (j = 0; j < 16; j++) {
- if (i + j >= count) {
- acpi_os_printf("\n");
- return;
- }
-
- buf_char = buffer[(acpi_size) i + j];
- if (ACPI_IS_PRINT(buf_char)) {
- acpi_os_printf("%c", buf_char);
- } else {
- acpi_os_printf(".");
- }
- }
-
- /* Done with that line. */
-
- acpi_os_printf("\n");
- i += 16;
- }
-
- return;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_dump_buffer
- *
- * PARAMETERS: Buffer - Buffer to dump
- * Count - Amount to dump, in bytes
- * Display - BYTE, WORD, DWORD, or QWORD display
- * component_iD - Caller's component ID
- *
- * RETURN: None
- *
- * DESCRIPTION: Generic dump buffer in both hex and ascii.
- *
- ******************************************************************************/
-
-void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id)
-{
-
- /* Only dump the buffer if tracing is enabled */
-
- if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
- (component_id & acpi_dbg_layer))) {
- return;
- }
-
- acpi_ut_dump_buffer2(buffer, count, display);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: utdelete - object deletion and reference count utilities
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acinterp.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utdelete")
-
-/* Local prototypes */
-static void acpi_ut_delete_internal_obj(union acpi_operand_object *object);
-
-static void
-acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_internal_obj
- *
- * PARAMETERS: Object - Object to be deleted
- *
- * RETURN: None
- *
- * DESCRIPTION: Low level object deletion, after reference counts have been
- * updated (All reference counts, including sub-objects!)
- *
- ******************************************************************************/
-
-static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
-{
- void *obj_pointer = NULL;
- union acpi_operand_object *handler_desc;
- union acpi_operand_object *second_desc;
- union acpi_operand_object *next_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object);
-
- if (!object) {
- return_VOID;
- }
-
- /*
- * Must delete or free any pointers within the object that are not
- * actual ACPI objects (for example, a raw buffer pointer).
- */
- switch (ACPI_GET_OBJECT_TYPE(object)) {
- case ACPI_TYPE_STRING:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "**** String %p, ptr %p\n", object,
- object->string.pointer));
-
- /* Free the actual string buffer */
-
- if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
-
- /* But only if it is NOT a pointer into an ACPI table */
-
- obj_pointer = object->string.pointer;
- }
- break;
-
- case ACPI_TYPE_BUFFER:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "**** Buffer %p, ptr %p\n", object,
- object->buffer.pointer));
-
- /* Free the actual buffer */
-
- if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) {
-
- /* But only if it is NOT a pointer into an ACPI table */
-
- obj_pointer = object->buffer.pointer;
- }
- break;
-
- case ACPI_TYPE_PACKAGE:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- " **** Package of count %X\n",
- object->package.count));
-
- /*
- * Elements of the package are not handled here, they are deleted
- * separately
- */
-
- /* Free the (variable length) element pointer array */
-
- obj_pointer = object->package.elements;
- break;
-
- /*
- * These objects have a possible list of notify handlers.
- * Device object also may have a GPE block.
- */
- case ACPI_TYPE_DEVICE:
-
- if (object->device.gpe_block) {
- (void)acpi_ev_delete_gpe_block(object->device.
- gpe_block);
- }
-
- /*lint -fallthrough */
-
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_THERMAL:
-
- /* Walk the notify handler list for this object */
-
- handler_desc = object->common_notify.handler;
- while (handler_desc) {
- next_desc = handler_desc->address_space.next;
- acpi_ut_remove_reference(handler_desc);
- handler_desc = next_desc;
- }
- break;
-
- case ACPI_TYPE_MUTEX:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "***** Mutex %p, OS Mutex %p\n",
- object, object->mutex.os_mutex));
-
- if (object == acpi_gbl_global_lock_mutex) {
-
- /* Global Lock has extra semaphore */
-
- (void)
- acpi_os_delete_semaphore
- (acpi_gbl_global_lock_semaphore);
- acpi_gbl_global_lock_semaphore = NULL;
-
- acpi_os_delete_mutex(object->mutex.os_mutex);
- acpi_gbl_global_lock_mutex = NULL;
- } else {
- acpi_ex_unlink_mutex(object);
- acpi_os_delete_mutex(object->mutex.os_mutex);
- }
- break;
-
- case ACPI_TYPE_EVENT:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "***** Event %p, OS Semaphore %p\n",
- object, object->event.os_semaphore));
-
- (void)acpi_os_delete_semaphore(object->event.os_semaphore);
- object->event.os_semaphore = NULL;
- break;
-
- case ACPI_TYPE_METHOD:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "***** Method %p\n", object));
-
- /* Delete the method mutex if it exists */
-
- if (object->method.mutex) {
- acpi_os_delete_mutex(object->method.mutex->mutex.
- os_mutex);
- acpi_ut_delete_object_desc(object->method.mutex);
- object->method.mutex = NULL;
- }
- break;
-
- case ACPI_TYPE_REGION:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "***** Region %p\n", object));
-
- second_desc = acpi_ns_get_secondary_object(object);
- if (second_desc) {
- /*
- * Free the region_context if and only if the handler is one of the
- * default handlers -- and therefore, we created the context object
- * locally, it was not created by an external caller.
- */
- handler_desc = object->region.handler;
- if (handler_desc) {
- if (handler_desc->address_space.handler_flags &
- ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
-
- /* Deactivate region and free region context */
-
- if (handler_desc->address_space.setup) {
- (void)handler_desc->
- address_space.setup(object,
- ACPI_REGION_DEACTIVATE,
- handler_desc->
- address_space.
- context,
- &second_desc->
- extra.
- region_context);
- }
- }
-
- acpi_ut_remove_reference(handler_desc);
- }
-
- /* Now we can free the Extra object */
-
- acpi_ut_delete_object_desc(second_desc);
- }
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "***** Buffer Field %p\n", object));
-
- second_desc = acpi_ns_get_secondary_object(object);
- if (second_desc) {
- acpi_ut_delete_object_desc(second_desc);
- }
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "***** Bank Field %p\n", object));
-
- second_desc = acpi_ns_get_secondary_object(object);
- if (second_desc) {
- acpi_ut_delete_object_desc(second_desc);
- }
- break;
-
- default:
- break;
- }
-
- /* Free any allocated memory (pointer within the object) found above */
-
- if (obj_pointer) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Deleting Object Subptr %p\n", obj_pointer));
- ACPI_FREE(obj_pointer);
- }
-
- /* Now the object can be safely deleted */
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Deleting Object %p [%s]\n",
- object, acpi_ut_get_object_type_name(object)));
-
- acpi_ut_delete_object_desc(object);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_internal_object_list
- *
- * PARAMETERS: obj_list - Pointer to the list to be deleted
- *
- * RETURN: None
- *
- * DESCRIPTION: This function deletes an internal object list, including both
- * simple objects and package objects
- *
- ******************************************************************************/
-
-void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list)
-{
- union acpi_operand_object **internal_obj;
-
- ACPI_FUNCTION_TRACE(ut_delete_internal_object_list);
-
- /* Walk the null-terminated internal list */
-
- for (internal_obj = obj_list; *internal_obj; internal_obj++) {
- acpi_ut_remove_reference(*internal_obj);
- }
-
- /* Free the combined parameter pointer list and object array */
-
- ACPI_FREE(obj_list);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_update_ref_count
- *
- * PARAMETERS: Object - Object whose ref count is to be updated
- * Action - What to do
- *
- * RETURN: New ref count
- *
- * DESCRIPTION: Modify the ref count and return it.
- *
- ******************************************************************************/
-
-static void
-acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
-{
- u16 count;
- u16 new_count;
-
- ACPI_FUNCTION_NAME(ut_update_ref_count);
-
- if (!object) {
- return;
- }
-
- count = object->common.reference_count;
- new_count = count;
-
- /*
- * Perform the reference count action (increment, decrement, force delete)
- */
- switch (action) {
- case REF_INCREMENT:
-
- new_count++;
- object->common.reference_count = new_count;
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, [Incremented]\n",
- object, new_count));
- break;
-
- case REF_DECREMENT:
-
- if (count < 1) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, can't decrement! (Set to 0)\n",
- object, new_count));
-
- new_count = 0;
- } else {
- new_count--;
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, [Decremented]\n",
- object, new_count));
- }
-
- if (ACPI_GET_OBJECT_TYPE(object) == ACPI_TYPE_METHOD) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Method Obj %p Refs=%X, [Decremented]\n",
- object, new_count));
- }
-
- object->common.reference_count = new_count;
- if (new_count == 0) {
- acpi_ut_delete_internal_obj(object);
- }
- break;
-
- case REF_FORCE_DELETE:
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Refs=%X, Force delete! (Set to 0)\n",
- object, count));
-
- new_count = 0;
- object->common.reference_count = new_count;
- acpi_ut_delete_internal_obj(object);
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Unknown action (%X)", action));
- break;
- }
-
- /*
- * Sanity check the reference count, for debug purposes only.
- * (A deleted object will have a huge reference count)
- */
- if (count > ACPI_MAX_REFERENCE_COUNT) {
- ACPI_WARNING((AE_INFO,
- "Large Reference Count (%X) in object %p", count,
- object));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_update_object_reference
- *
- * PARAMETERS: Object - Increment ref count for this object
- * and all sub-objects
- * Action - Either REF_INCREMENT or REF_DECREMENT or
- * REF_FORCE_DELETE
- *
- * RETURN: Status
- *
- * DESCRIPTION: Increment the object reference count
- *
- * Object references are incremented when:
- * 1) An object is attached to a Node (namespace object)
- * 2) An object is copied (all subobjects must be incremented)
- *
- * Object references are decremented when:
- * 1) An object is detached from an Node
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
-{
- acpi_status status = AE_OK;
- union acpi_generic_state *state_list = NULL;
- union acpi_operand_object *next_object = NULL;
- union acpi_generic_state *state;
- u32 i;
-
- ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object);
-
- while (object) {
-
- /* Make sure that this isn't a namespace handle */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) {
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Object %p is NS handle\n", object));
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * All sub-objects must have their reference count incremented also.
- * Different object types have different subobjects.
- */
- switch (ACPI_GET_OBJECT_TYPE(object)) {
- case ACPI_TYPE_DEVICE:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_POWER:
- case ACPI_TYPE_THERMAL:
-
- /* Update the notify objects for these types (if present) */
-
- acpi_ut_update_ref_count(object->common_notify.
- system_notify, action);
- acpi_ut_update_ref_count(object->common_notify.
- device_notify, action);
- break;
-
- case ACPI_TYPE_PACKAGE:
- /*
- * We must update all the sub-objects of the package,
- * each of whom may have their own sub-objects.
- */
- for (i = 0; i < object->package.count; i++) {
- /*
- * Push each element onto the stack for later processing.
- * Note: There can be null elements within the package,
- * these are simply ignored
- */
- status =
- acpi_ut_create_update_state_and_push
- (object->package.elements[i], action,
- &state_list);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
- }
- break;
-
- case ACPI_TYPE_BUFFER_FIELD:
-
- next_object = object->buffer_field.buffer_obj;
- break;
-
- case ACPI_TYPE_LOCAL_REGION_FIELD:
-
- next_object = object->field.region_obj;
- break;
-
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- next_object = object->bank_field.bank_obj;
- status =
- acpi_ut_create_update_state_and_push(object->
- bank_field.
- region_obj,
- action,
- &state_list);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
- break;
-
- case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
- next_object = object->index_field.index_obj;
- status =
- acpi_ut_create_update_state_and_push(object->
- index_field.
- data_obj,
- action,
- &state_list);
- if (ACPI_FAILURE(status)) {
- goto error_exit;
- }
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
- /*
- * The target of an Index (a package, string, or buffer) or a named
- * reference must track changes to the ref count of the index or
- * target object.
- */
- if ((object->reference.class == ACPI_REFCLASS_INDEX) ||
- (object->reference.class == ACPI_REFCLASS_NAME)) {
- next_object = object->reference.object;
- }
- break;
-
- case ACPI_TYPE_REGION:
- default:
- break; /* No subobjects for all other types */
- }
-
- /*
- * Now we can update the count in the main object. This can only
- * happen after we update the sub-objects in case this causes the
- * main object to be deleted.
- */
- acpi_ut_update_ref_count(object, action);
- object = NULL;
-
- /* Move on to the next object to be updated */
-
- if (next_object) {
- object = next_object;
- next_object = NULL;
- } else if (state_list) {
- state = acpi_ut_pop_generic_state(&state_list);
- object = state->update.object;
- acpi_ut_delete_generic_state(state);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
-
- error_exit:
-
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not update object reference count"));
-
- /* Free any stacked Update State objects */
-
- while (state_list) {
- state = acpi_ut_pop_generic_state(&state_list);
- acpi_ut_delete_generic_state(state);
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_add_reference
- *
- * PARAMETERS: Object - Object whose reference count is to be
- * incremented
- *
- * RETURN: None
- *
- * DESCRIPTION: Add one reference to an ACPI object
- *
- ******************************************************************************/
-
-void acpi_ut_add_reference(union acpi_operand_object *object)
-{
-
- ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object);
-
- /* Ensure that we have a valid object */
-
- if (!acpi_ut_valid_internal_object(object)) {
- return_VOID;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Current Refs=%X [To Be Incremented]\n",
- object, object->common.reference_count));
-
- /* Increment the reference count */
-
- (void)acpi_ut_update_object_reference(object, REF_INCREMENT);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_remove_reference
- *
- * PARAMETERS: Object - Object whose ref count will be decremented
- *
- * RETURN: None
- *
- * DESCRIPTION: Decrement the reference count of an ACPI internal object
- *
- ******************************************************************************/
-
-void acpi_ut_remove_reference(union acpi_operand_object *object)
-{
-
- ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object);
-
- /*
- * Allow a NULL pointer to be passed in, just ignore it. This saves
- * each caller from having to check. Also, ignore NS nodes.
- *
- */
- if (!object ||
- (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED)) {
- return_VOID;
- }
-
- /* Ensure that we have a valid object */
-
- if (!acpi_ut_valid_internal_object(object)) {
- return_VOID;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
- "Obj %p Current Refs=%X [To Be Decremented]\n",
- object, object->common.reference_count));
-
- /*
- * Decrement the reference count, and only actually delete the object
- * if the reference count becomes 0. (Must also decrement the ref count
- * of all subobjects!)
- */
- (void)acpi_ut_update_object_reference(object, REF_DECREMENT);
- return_VOID;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: uteval - Object evaluation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("uteval")
-
-/* Local prototypes */
-static void
-acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length);
-
-static acpi_status
-acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
- struct acpi_compatible_id *one_cid);
-
-/*
- * Strings supported by the _OSI predefined (internal) method.
- */
-static char *acpi_interfaces_supported[] = {
- /* Operating System Vendor Strings */
-
- "Windows 2000", /* Windows 2000 */
- "Windows 2001", /* Windows XP */
- "Windows 2001 SP1", /* Windows XP SP1 */
- "Windows 2001 SP2", /* Windows XP SP2 */
- "Windows 2001.1", /* Windows Server 2003 */
- "Windows 2001.1 SP1", /* Windows Server 2003 SP1 - Added 03/2006 */
- "Windows 2006", /* Windows Vista - Added 03/2006 */
-
- /* Feature Group Strings */
-
- "Extended Address Space Descriptor"
- /*
- * All "optional" feature group strings (features that are implemented
- * by the host) should be implemented in the host version of
- * acpi_os_validate_interface and should not be added here.
- */
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_osi_implementation
- *
- * PARAMETERS: walk_state - Current walk state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Implementation of the _OSI predefined control method
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
-{
- acpi_status status;
- union acpi_operand_object *string_desc;
- union acpi_operand_object *return_desc;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_osi_implementation);
-
- /* Validate the string input argument */
-
- string_desc = walk_state->arguments[0].object;
- if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
- return_ACPI_STATUS(AE_TYPE);
- }
-
- /* Create a return object */
-
- return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!return_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Default return value is SUPPORTED */
-
- return_desc->integer.value = ACPI_UINT32_MAX;
- walk_state->return_desc = return_desc;
-
- /* Compare input string to static table of supported interfaces */
-
- for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
- if (!ACPI_STRCMP
- (string_desc->string.pointer,
- acpi_interfaces_supported[i])) {
-
- /* The interface is supported */
-
- return_ACPI_STATUS(AE_OK);
- }
- }
-
- /*
- * Did not match the string in the static table, call the host OSL to
- * check for a match with one of the optional strings (such as
- * "Module Device", "3.0 Thermal Model", etc.)
- */
- status = acpi_os_validate_interface(string_desc->string.pointer);
- if (ACPI_SUCCESS(status)) {
-
- /* The interface is supported */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* The interface is not supported */
-
- return_desc->integer.value = 0;
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_osi_invalidate
- *
- * PARAMETERS: interface_string
- *
- * RETURN: Status
- *
- * DESCRIPTION: invalidate string in pre-defiend _OSI string list
- *
- ******************************************************************************/
-
-acpi_status acpi_osi_invalidate(char *interface)
-{
- int i;
-
- for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
- if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i])) {
- *acpi_interfaces_supported[i] = '\0';
- return AE_OK;
- }
- }
- return AE_NOT_FOUND;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_evaluate_object
- *
- * PARAMETERS: prefix_node - Starting node
- * Path - Path to object from starting node
- * expected_return_types - Bitmap of allowed return types
- * return_desc - Where a return value is stored
- *
- * RETURN: Status
- *
- * DESCRIPTION: Evaluates a namespace object and verifies the type of the
- * return object. Common code that simplifies accessing objects
- * that have required return objects of fixed types.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
- char *path,
- u32 expected_return_btypes,
- union acpi_operand_object **return_desc)
-{
- struct acpi_evaluate_info *info;
- acpi_status status;
- u32 return_btype;
-
- ACPI_FUNCTION_TRACE(ut_evaluate_object);
-
- /* Allocate the evaluation information block */
-
- info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
- if (!info) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- info->prefix_node = prefix_node;
- info->pathname = path;
-
- /* Evaluate the object/method */
-
- status = acpi_ns_evaluate(info);
- if (ACPI_FAILURE(status)) {
- if (status == AE_NOT_FOUND) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[%4.4s.%s] was not found\n",
- acpi_ut_get_node_name(prefix_node),
- path));
- } else {
- ACPI_ERROR_METHOD("Method execution failed",
- prefix_node, path, status);
- }
-
- goto cleanup;
- }
-
- /* Did we get a return object? */
-
- if (!info->return_object) {
- if (expected_return_btypes) {
- ACPI_ERROR_METHOD("No object was returned from",
- prefix_node, path, AE_NOT_EXIST);
-
- status = AE_NOT_EXIST;
- }
-
- goto cleanup;
- }
-
- /* Map the return object type to the bitmapped type */
-
- switch (ACPI_GET_OBJECT_TYPE(info->return_object)) {
- case ACPI_TYPE_INTEGER:
- return_btype = ACPI_BTYPE_INTEGER;
- break;
-
- case ACPI_TYPE_BUFFER:
- return_btype = ACPI_BTYPE_BUFFER;
- break;
-
- case ACPI_TYPE_STRING:
- return_btype = ACPI_BTYPE_STRING;
- break;
-
- case ACPI_TYPE_PACKAGE:
- return_btype = ACPI_BTYPE_PACKAGE;
- break;
-
- default:
- return_btype = 0;
- break;
- }
-
- if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) {
- /*
- * We received a return object, but one was not expected. This can
- * happen frequently if the "implicit return" feature is enabled.
- * Just delete the return object and return AE_OK.
- */
- acpi_ut_remove_reference(info->return_object);
- goto cleanup;
- }
-
- /* Is the return object one of the expected types? */
-
- if (!(expected_return_btypes & return_btype)) {
- ACPI_ERROR_METHOD("Return object type is incorrect",
- prefix_node, path, AE_TYPE);
-
- ACPI_ERROR((AE_INFO,
- "Type returned from %s was incorrect: %s, expected Btypes: %X",
- path,
- acpi_ut_get_object_type_name(info->return_object),
- expected_return_btypes));
-
- /* On error exit, we must delete the return object */
-
- acpi_ut_remove_reference(info->return_object);
- status = AE_TYPE;
- goto cleanup;
- }
-
- /* Object type is OK, return it */
-
- *return_desc = info->return_object;
-
- cleanup:
- ACPI_FREE(info);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_evaluate_numeric_object
- *
- * PARAMETERS: object_name - Object name to be evaluated
- * device_node - Node for the device
- * Address - Where the value is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Evaluates a numeric namespace object for a selected device
- * and stores result in *Address.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_evaluate_numeric_object(char *object_name,
- struct acpi_namespace_node *device_node,
- acpi_integer * address)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object);
-
- status = acpi_ut_evaluate_object(device_node, object_name,
- ACPI_BTYPE_INTEGER, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the returned Integer */
-
- *address = obj_desc->integer.value;
-
- /* On exit, we must delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_copy_id_string
- *
- * PARAMETERS: Destination - Where to copy the string
- * Source - Source string
- * max_length - Length of the destination buffer
- *
- * RETURN: None
- *
- * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
- * Performs removal of a leading asterisk if present -- workaround
- * for a known issue on a bunch of machines.
- *
- ******************************************************************************/
-
-static void
-acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length)
-{
-
- /*
- * Workaround for ID strings that have a leading asterisk. This construct
- * is not allowed by the ACPI specification (ID strings must be
- * alphanumeric), but enough existing machines have this embedded in their
- * ID strings that the following code is useful.
- */
- if (*source == '*') {
- source++;
- }
-
- /* Do the actual copy */
-
- ACPI_STRNCPY(destination, source, max_length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_HID
- *
- * PARAMETERS: device_node - Node for the device
- * Hid - Where the HID is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes the _HID control method that returns the hardware
- * ID of the device.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
- struct acpica_device_id *hid)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_execute_HID);
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID,
- ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-
- /* Convert the Numeric HID to string */
-
- acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
- hid->value);
- } else {
- /* Copy the String HID from the returned object */
-
- acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer,
- sizeof(hid->value));
- }
-
- /* On exit, we must delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_translate_one_cid
- *
- * PARAMETERS: obj_desc - _CID object, must be integer or string
- * one_cid - Where the CID string is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Return a numeric or string _CID value as a string.
- * (Compatible ID)
- *
- * NOTE: Assumes a maximum _CID string length of
- * ACPI_MAX_CID_LENGTH.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc,
- struct acpi_compatible_id *one_cid)
-{
-
- switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
- case ACPI_TYPE_INTEGER:
-
- /* Convert the Numeric CID to string */
-
- acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value,
- one_cid->value);
- return (AE_OK);
-
- case ACPI_TYPE_STRING:
-
- if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) {
- return (AE_AML_STRING_LIMIT);
- }
-
- /* Copy the String CID from the returned object */
-
- acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer,
- ACPI_MAX_CID_LENGTH);
- return (AE_OK);
-
- default:
-
- return (AE_TYPE);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_CID
- *
- * PARAMETERS: device_node - Node for the device
- * return_cid_list - Where the CID list is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes the _CID control method that returns one or more
- * compatible hardware IDs for the device.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_CID(struct acpi_namespace_node * device_node,
- struct acpi_compatible_id_list ** return_cid_list)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
- u32 count;
- u32 size;
- struct acpi_compatible_id_list *cid_list;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_execute_CID);
-
- /* Evaluate the _CID method for this device */
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID,
- ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING
- | ACPI_BTYPE_PACKAGE, &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the number of _CIDs returned */
-
- count = 1;
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
- count = obj_desc->package.count;
- }
-
- /* Allocate a worst-case buffer for the _CIDs */
-
- size = (((count - 1) * sizeof(struct acpi_compatible_id)) +
- sizeof(struct acpi_compatible_id_list));
-
- cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
- if (!cid_list) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Init CID list */
-
- cid_list->count = count;
- cid_list->size = size;
-
- /*
- * A _CID can return either a single compatible ID or a package of
- * compatible IDs. Each compatible ID can be one of the following:
- * 1) Integer (32 bit compressed EISA ID) or
- * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss")
- */
-
- /* The _CID object can be either a single CID or a package (list) of CIDs */
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) {
-
- /* Translate each package element */
-
- for (i = 0; i < count; i++) {
- status =
- acpi_ut_translate_one_cid(obj_desc->package.
- elements[i],
- &cid_list->id[i]);
- if (ACPI_FAILURE(status)) {
- break;
- }
- }
- } else {
- /* Only one CID, translate to a string */
-
- status = acpi_ut_translate_one_cid(obj_desc, cid_list->id);
- }
-
- /* Cleanup on error */
-
- if (ACPI_FAILURE(status)) {
- ACPI_FREE(cid_list);
- } else {
- *return_cid_list = cid_list;
- }
-
- /* On exit, we must delete the _CID return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_UID
- *
- * PARAMETERS: device_node - Node for the device
- * Uid - Where the UID is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes the _UID control method that returns the hardware
- * ID of the device.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
- struct acpica_device_id *uid)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_execute_UID);
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID,
- ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING,
- &obj_desc);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
-
- /* Convert the Numeric UID to string */
-
- acpi_ex_unsigned_integer_to_string(obj_desc->integer.value,
- uid->value);
- } else {
- /* Copy the String UID from the returned object */
-
- acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer,
- sizeof(uid->value));
- }
-
- /* On exit, we must delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_STA
- *
- * PARAMETERS: device_node - Node for the device
- * Flags - Where the status flags are returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes _STA for selected device and stores results in
- * *Flags.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_execute_STA);
-
- status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA,
- ACPI_BTYPE_INTEGER, &obj_desc);
- if (ACPI_FAILURE(status)) {
- if (AE_NOT_FOUND == status) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "_STA on %4.4s was not found, assuming device is present\n",
- acpi_ut_get_node_name(device_node)));
-
- *flags = ACPI_UINT32_MAX;
- status = AE_OK;
- }
-
- return_ACPI_STATUS(status);
- }
-
- /* Extract the status flags */
-
- *flags = (u32) obj_desc->integer.value;
-
- /* On exit, we must delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_execute_Sxds
- *
- * PARAMETERS: device_node - Node for the device
- * Flags - Where the status flags are returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Executes _STA for selected device and stores results in
- * *Flags.
- *
- * NOTE: Internal function, no parameter validation
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest)
-{
- union acpi_operand_object *obj_desc;
- acpi_status status;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_execute_sxds);
-
- for (i = 0; i < 4; i++) {
- highest[i] = 0xFF;
- status = acpi_ut_evaluate_object(device_node,
- ACPI_CAST_PTR(char,
- acpi_gbl_highest_dstate_names
- [i]),
- ACPI_BTYPE_INTEGER, &obj_desc);
- if (ACPI_FAILURE(status)) {
- if (status != AE_NOT_FOUND) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "%s on Device %4.4s, %s\n",
- ACPI_CAST_PTR(char,
- acpi_gbl_highest_dstate_names
- [i]),
- acpi_ut_get_node_name
- (device_node),
- acpi_format_exception
- (status)));
-
- return_ACPI_STATUS(status);
- }
- } else {
- /* Extract the Dstate value */
-
- highest[i] = (u8) obj_desc->integer.value;
-
- /* Delete the return object */
-
- acpi_ut_remove_reference(obj_desc);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utglobal - Global variables for the ACPI subsystem
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#define DEFINE_ACPI_GLOBALS
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utglobal")
-
-/*******************************************************************************
- *
- * Static global variable initialization.
- *
- ******************************************************************************/
-/*
- * We want the debug switches statically initialized so they
- * are already set when the debugger is entered.
- */
-/* Debug switch - level and trace mask */
-u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
-
-/* Debug switch - layer (component) mask */
-
-u32 acpi_dbg_layer = 0;
-u32 acpi_gbl_nesting_level = 0;
-
-/* Debugger globals */
-
-u8 acpi_gbl_db_terminate_threads = FALSE;
-u8 acpi_gbl_abort_method = FALSE;
-u8 acpi_gbl_method_executing = FALSE;
-
-/* System flags */
-
-u32 acpi_gbl_startup_flags = 0;
-
-/* System starts uninitialized */
-
-u8 acpi_gbl_shutdown = TRUE;
-
-const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
- "\\_S0_",
- "\\_S1_",
- "\\_S2_",
- "\\_S3_",
- "\\_S4_",
- "\\_S5_"
-};
-
-const char *acpi_gbl_highest_dstate_names[4] = {
- "_S1D",
- "_S2D",
- "_S3D",
- "_S4D"
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_format_exception
- *
- * PARAMETERS: Status - The acpi_status code to be formatted
- *
- * RETURN: A string containing the exception text. A valid pointer is
- * always returned.
- *
- * DESCRIPTION: This function translates an ACPI exception into an ASCII string
- * It is here instead of utxface.c so it is always present.
- *
- ******************************************************************************/
-
-const char *acpi_format_exception(acpi_status status)
-{
- const char *exception = NULL;
-
- ACPI_FUNCTION_ENTRY();
-
- exception = acpi_ut_validate_exception(status);
- if (!exception) {
-
- /* Exception code was not recognized */
-
- ACPI_ERROR((AE_INFO,
- "Unknown exception code: 0x%8.8X", status));
-
- exception = "UNKNOWN_STATUS_CODE";
- dump_stack();
- }
-
- return (ACPI_CAST_PTR(const char, exception));
-}
-
-ACPI_EXPORT_SYMBOL(acpi_format_exception)
-
-/*******************************************************************************
- *
- * Namespace globals
- *
- ******************************************************************************/
-/*
- * Predefined ACPI Names (Built-in to the Interpreter)
- *
- * NOTES:
- * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
- * during the initialization sequence.
- * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
- * perform a Notify() operation on it.
- */
-const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
- {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
- {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
- {"_SB_", ACPI_TYPE_DEVICE, NULL},
- {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
- {"_TZ_", ACPI_TYPE_THERMAL, NULL},
- {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
- {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
- {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
-
-#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
- {"_OSI", ACPI_TYPE_METHOD, (char *)1},
-#endif
-
- /* Table terminator */
-
- {NULL, ACPI_TYPE_ANY, NULL}
-};
-
-/*
- * Properties of the ACPI Object Types, both internal and external.
- * The table is indexed by values of acpi_object_type
- */
-const u8 acpi_gbl_ns_properties[] = {
- ACPI_NS_NORMAL, /* 00 Any */
- ACPI_NS_NORMAL, /* 01 Number */
- ACPI_NS_NORMAL, /* 02 String */
- ACPI_NS_NORMAL, /* 03 Buffer */
- ACPI_NS_NORMAL, /* 04 Package */
- ACPI_NS_NORMAL, /* 05 field_unit */
- ACPI_NS_NEWSCOPE, /* 06 Device */
- ACPI_NS_NORMAL, /* 07 Event */
- ACPI_NS_NEWSCOPE, /* 08 Method */
- ACPI_NS_NORMAL, /* 09 Mutex */
- ACPI_NS_NORMAL, /* 10 Region */
- ACPI_NS_NEWSCOPE, /* 11 Power */
- ACPI_NS_NEWSCOPE, /* 12 Processor */
- ACPI_NS_NEWSCOPE, /* 13 Thermal */
- ACPI_NS_NORMAL, /* 14 buffer_field */
- ACPI_NS_NORMAL, /* 15 ddb_handle */
- ACPI_NS_NORMAL, /* 16 Debug Object */
- ACPI_NS_NORMAL, /* 17 def_field */
- ACPI_NS_NORMAL, /* 18 bank_field */
- ACPI_NS_NORMAL, /* 19 index_field */
- ACPI_NS_NORMAL, /* 20 Reference */
- ACPI_NS_NORMAL, /* 21 Alias */
- ACPI_NS_NORMAL, /* 22 method_alias */
- ACPI_NS_NORMAL, /* 23 Notify */
- ACPI_NS_NORMAL, /* 24 Address Handler */
- ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
- ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
- ACPI_NS_NEWSCOPE, /* 27 Scope */
- ACPI_NS_NORMAL, /* 28 Extra */
- ACPI_NS_NORMAL, /* 29 Data */
- ACPI_NS_NORMAL /* 30 Invalid */
-};
-
-/* Hex to ASCII conversion table */
-
-static const char acpi_gbl_hex_to_ascii[] = {
- '0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_hex_to_ascii_char
- *
- * PARAMETERS: Integer - Contains the hex digit
- * Position - bit position of the digit within the
- * integer (multiple of 4)
- *
- * RETURN: The converted Ascii character
- *
- * DESCRIPTION: Convert a hex digit to an Ascii character
- *
- ******************************************************************************/
-
-char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
-{
-
- return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
-}
-
-/******************************************************************************
- *
- * Event and Hardware globals
- *
- ******************************************************************************/
-
-struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
- /* Name Parent Register Register Bit Position Register Bit Mask */
-
- /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_TIMER_STATUS,
- ACPI_BITMASK_TIMER_STATUS},
- /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_BUS_MASTER_STATUS,
- ACPI_BITMASK_BUS_MASTER_STATUS},
- /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
- ACPI_BITMASK_GLOBAL_LOCK_STATUS},
- /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_POWER_BUTTON_STATUS,
- ACPI_BITMASK_POWER_BUTTON_STATUS},
- /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
- ACPI_BITMASK_SLEEP_BUTTON_STATUS},
- /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_RT_CLOCK_STATUS,
- ACPI_BITMASK_RT_CLOCK_STATUS},
- /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_WAKE_STATUS,
- ACPI_BITMASK_WAKE_STATUS},
- /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
- ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
- ACPI_BITMASK_PCIEXP_WAKE_STATUS},
-
- /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
- ACPI_BITPOSITION_TIMER_ENABLE,
- ACPI_BITMASK_TIMER_ENABLE},
- /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
- ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
- ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
- /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
- ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
- ACPI_BITMASK_POWER_BUTTON_ENABLE},
- /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
- ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
- ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
- /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
- ACPI_BITPOSITION_RT_CLOCK_ENABLE,
- ACPI_BITMASK_RT_CLOCK_ENABLE},
- /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
- ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
- ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
-
- /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
- ACPI_BITPOSITION_SCI_ENABLE,
- ACPI_BITMASK_SCI_ENABLE},
- /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
- ACPI_BITPOSITION_BUS_MASTER_RLD,
- ACPI_BITMASK_BUS_MASTER_RLD},
- /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
- ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
- ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
- /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL,
- ACPI_BITPOSITION_SLEEP_TYPE_X,
- ACPI_BITMASK_SLEEP_TYPE_X},
- /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL,
- ACPI_BITPOSITION_SLEEP_TYPE_X,
- ACPI_BITMASK_SLEEP_TYPE_X},
- /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
- ACPI_BITPOSITION_SLEEP_ENABLE,
- ACPI_BITMASK_SLEEP_ENABLE},
-
- /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
- ACPI_BITPOSITION_ARB_DISABLE,
- ACPI_BITMASK_ARB_DISABLE}
-};
-
-struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
- /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
- ACPI_BITREG_TIMER_ENABLE,
- ACPI_BITMASK_TIMER_STATUS,
- ACPI_BITMASK_TIMER_ENABLE},
- /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
- ACPI_BITREG_GLOBAL_LOCK_ENABLE,
- ACPI_BITMASK_GLOBAL_LOCK_STATUS,
- ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
- /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
- ACPI_BITREG_POWER_BUTTON_ENABLE,
- ACPI_BITMASK_POWER_BUTTON_STATUS,
- ACPI_BITMASK_POWER_BUTTON_ENABLE},
- /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
- ACPI_BITREG_SLEEP_BUTTON_ENABLE,
- ACPI_BITMASK_SLEEP_BUTTON_STATUS,
- ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
- /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
- ACPI_BITREG_RT_CLOCK_ENABLE,
- ACPI_BITMASK_RT_CLOCK_STATUS,
- ACPI_BITMASK_RT_CLOCK_ENABLE},
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_region_name
- *
- * PARAMETERS: None.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a Space ID into a name string (Debug only)
- *
- ******************************************************************************/
-
-/* Region type decoding */
-
-const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
- "SystemMemory",
- "SystemIO",
- "PCI_Config",
- "EmbeddedControl",
- "SMBus",
- "SystemCMOS",
- "PCIBARTarget",
- "DataTable"
-};
-
-char *acpi_ut_get_region_name(u8 space_id)
-{
-
- if (space_id >= ACPI_USER_REGION_BEGIN) {
- return ("UserDefinedRegion");
- } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
- return ("InvalidSpaceId");
- }
-
- return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_event_name
- *
- * PARAMETERS: None.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a Event ID into a name string (Debug only)
- *
- ******************************************************************************/
-
-/* Event type decoding */
-
-static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
- "PM_Timer",
- "GlobalLock",
- "PowerButton",
- "SleepButton",
- "RealTimeClock",
-};
-
-char *acpi_ut_get_event_name(u32 event_id)
-{
-
- if (event_id > ACPI_EVENT_MAX) {
- return ("InvalidEventID");
- }
-
- return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_type_name
- *
- * PARAMETERS: None.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Translate a Type ID into a name string (Debug only)
- *
- ******************************************************************************/
-
-/*
- * Elements of acpi_gbl_ns_type_names below must match
- * one-to-one with values of acpi_object_type
- *
- * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
- * when stored in a table it really means that we have thus far seen no
- * evidence to indicate what type is actually going to be stored for this entry.
- */
-static const char acpi_gbl_bad_type[] = "UNDEFINED";
-
-/* Printable names of the ACPI object types */
-
-static const char *acpi_gbl_ns_type_names[] = {
- /* 00 */ "Untyped",
- /* 01 */ "Integer",
- /* 02 */ "String",
- /* 03 */ "Buffer",
- /* 04 */ "Package",
- /* 05 */ "FieldUnit",
- /* 06 */ "Device",
- /* 07 */ "Event",
- /* 08 */ "Method",
- /* 09 */ "Mutex",
- /* 10 */ "Region",
- /* 11 */ "Power",
- /* 12 */ "Processor",
- /* 13 */ "Thermal",
- /* 14 */ "BufferField",
- /* 15 */ "DdbHandle",
- /* 16 */ "DebugObject",
- /* 17 */ "RegionField",
- /* 18 */ "BankField",
- /* 19 */ "IndexField",
- /* 20 */ "Reference",
- /* 21 */ "Alias",
- /* 22 */ "MethodAlias",
- /* 23 */ "Notify",
- /* 24 */ "AddrHandler",
- /* 25 */ "ResourceDesc",
- /* 26 */ "ResourceFld",
- /* 27 */ "Scope",
- /* 28 */ "Extra",
- /* 29 */ "Data",
- /* 30 */ "Invalid"
-};
-
-char *acpi_ut_get_type_name(acpi_object_type type)
-{
-
- if (type > ACPI_TYPE_INVALID) {
- return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
- }
-
- return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
-}
-
-char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
-{
-
- if (!obj_desc) {
- return ("[NULL Object Descriptor]");
- }
-
- return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_node_name
- *
- * PARAMETERS: Object - A namespace node
- *
- * RETURN: Pointer to a string
- *
- * DESCRIPTION: Validate the node and return the node's ACPI name.
- *
- ******************************************************************************/
-
-char *acpi_ut_get_node_name(void *object)
-{
- struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
-
- /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
-
- if (!object) {
- return ("NULL");
- }
-
- /* Check for Root node */
-
- if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
- return ("\"\\\" ");
- }
-
- /* Descriptor must be a namespace node */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
- return ("####");
- }
-
- /* Name must be a valid ACPI name */
-
- if (!acpi_ut_valid_acpi_name(node->name.integer)) {
- node->name.integer = acpi_ut_repair_name(node->name.ascii);
- }
-
- /* Return the name */
-
- return (node->name.ascii);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_descriptor_name
- *
- * PARAMETERS: Object - An ACPI object
- *
- * RETURN: Pointer to a string
- *
- * DESCRIPTION: Validate object and return the descriptor type
- *
- ******************************************************************************/
-
-/* Printable names of object descriptor types */
-
-static const char *acpi_gbl_desc_type_names[] = {
- /* 00 */ "Invalid",
- /* 01 */ "Cached",
- /* 02 */ "State-Generic",
- /* 03 */ "State-Update",
- /* 04 */ "State-Package",
- /* 05 */ "State-Control",
- /* 06 */ "State-RootParseScope",
- /* 07 */ "State-ParseScope",
- /* 08 */ "State-WalkScope",
- /* 09 */ "State-Result",
- /* 10 */ "State-Notify",
- /* 11 */ "State-Thread",
- /* 12 */ "Walk",
- /* 13 */ "Parser",
- /* 14 */ "Operand",
- /* 15 */ "Node"
-};
-
-char *acpi_ut_get_descriptor_name(void *object)
-{
-
- if (!object) {
- return ("NULL OBJECT");
- }
-
- if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
- return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
- }
-
- return (ACPI_CAST_PTR(char,
- acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
- (object)]));
-
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_reference_name
- *
- * PARAMETERS: Object - An ACPI reference object
- *
- * RETURN: Pointer to a string
- *
- * DESCRIPTION: Decode a reference object sub-type to a string.
- *
- ******************************************************************************/
-
-/* Printable names of reference object sub-types */
-
-static const char *acpi_gbl_ref_class_names[] = {
- /* 00 */ "Local",
- /* 01 */ "Argument",
- /* 02 */ "RefOf",
- /* 03 */ "Index",
- /* 04 */ "DdbHandle",
- /* 05 */ "Named Object",
- /* 06 */ "Debug"
-};
-
-const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
-{
- if (!object)
- return "NULL Object";
-
- if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
- return "Not an Operand object";
-
- if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
- return "Not a Reference object";
-
- if (object->reference.class > ACPI_REFCLASS_MAX)
- return "Unknown Reference class";
-
- return acpi_gbl_ref_class_names[object->reference.class];
-}
-
-#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
-/*
- * Strings and procedures used for debug only
- */
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_mutex_name
- *
- * PARAMETERS: mutex_id - The predefined ID for this mutex.
- *
- * RETURN: String containing the name of the mutex. Always returns a valid
- * pointer.
- *
- * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
- *
- ******************************************************************************/
-
-char *acpi_ut_get_mutex_name(u32 mutex_id)
-{
-
- if (mutex_id > ACPI_MAX_MUTEX) {
- return ("Invalid Mutex ID");
- }
-
- return (acpi_gbl_mutex_names[mutex_id]);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_notify_name
- *
- * PARAMETERS: notify_value - Value from the Notify() request
- *
- * RETURN: String corresponding to the Notify Value.
- *
- * DESCRIPTION: Translate a Notify Value to a notify namestring.
- *
- ******************************************************************************/
-
-/* Names for Notify() values, used for debug output */
-
-static const char *acpi_gbl_notify_value_names[] = {
- "Bus Check",
- "Device Check",
- "Device Wake",
- "Eject Request",
- "Device Check Light",
- "Frequency Mismatch",
- "Bus Mode Mismatch",
- "Power Fault",
- "Capabilities Check",
- "Device PLD Check",
- "Reserved",
- "System Locality Update"
-};
-
-const char *acpi_ut_get_notify_name(u32 notify_value)
-{
-
- if (notify_value <= ACPI_NOTIFY_MAX) {
- return (acpi_gbl_notify_value_names[notify_value]);
- } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
- return ("Reserved");
- } else { /* Greater or equal to 0x80 */
-
- return ("**Device Specific**");
- }
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_valid_object_type
- *
- * PARAMETERS: Type - Object type to be validated
- *
- * RETURN: TRUE if valid object type, FALSE otherwise
- *
- * DESCRIPTION: Validate an object type
- *
- ******************************************************************************/
-
-u8 acpi_ut_valid_object_type(acpi_object_type type)
-{
-
- if (type > ACPI_TYPE_LOCAL_MAX) {
-
- /* Note: Assumes all TYPEs are contiguous (external/local) */
-
- return (FALSE);
- }
-
- return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_init_globals
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Init library globals. All globals that require specific
- * initialization should be initialized here!
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_init_globals(void)
-{
- acpi_status status;
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_init_globals);
-
- /* Create all memory caches */
-
- status = acpi_ut_create_caches();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Mutex locked flags */
-
- for (i = 0; i < ACPI_NUM_MUTEX; i++) {
- acpi_gbl_mutex_info[i].mutex = NULL;
- acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
- acpi_gbl_mutex_info[i].use_count = 0;
- }
-
- for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
- acpi_gbl_owner_id_mask[i] = 0;
- }
- acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
-
- /* GPE support */
-
- acpi_gbl_gpe_xrupt_list_head = NULL;
- acpi_gbl_gpe_fadt_blocks[0] = NULL;
- acpi_gbl_gpe_fadt_blocks[1] = NULL;
- acpi_current_gpe_count = 0;
-
- /* Global handlers */
-
- acpi_gbl_system_notify.handler = NULL;
- acpi_gbl_device_notify.handler = NULL;
- acpi_gbl_exception_handler = NULL;
- acpi_gbl_init_handler = NULL;
- acpi_gbl_table_handler = NULL;
-
- /* Global Lock support */
-
- acpi_gbl_global_lock_semaphore = NULL;
- acpi_gbl_global_lock_mutex = NULL;
- acpi_gbl_global_lock_acquired = FALSE;
- acpi_gbl_global_lock_handle = 0;
- acpi_gbl_global_lock_present = FALSE;
-
- /* Miscellaneous variables */
-
- acpi_gbl_cm_single_step = FALSE;
- acpi_gbl_db_terminate_threads = FALSE;
- acpi_gbl_shutdown = FALSE;
- acpi_gbl_ns_lookup_count = 0;
- acpi_gbl_ps_find_count = 0;
- acpi_gbl_acpi_hardware_present = TRUE;
- acpi_gbl_last_owner_id_index = 0;
- acpi_gbl_next_owner_id_offset = 0;
- acpi_gbl_trace_method_name = 0;
- acpi_gbl_trace_dbg_level = 0;
- acpi_gbl_trace_dbg_layer = 0;
- acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
- acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
-
- /* Hardware oriented */
-
- acpi_gbl_events_initialized = FALSE;
- acpi_gbl_system_awake_and_running = TRUE;
-
- /* Namespace */
-
- acpi_gbl_root_node = NULL;
- acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
- acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
- acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
- acpi_gbl_root_node_struct.child = NULL;
- acpi_gbl_root_node_struct.peer = NULL;
- acpi_gbl_root_node_struct.object = NULL;
- acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
-
-#ifdef ACPI_DEBUG_OUTPUT
- acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
-#endif
-
-#ifdef ACPI_DBG_TRACK_ALLOCATIONS
- acpi_gbl_display_final_mem_stats = FALSE;
-#endif
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
-ACPI_EXPORT_SYMBOL(acpi_dbg_level)
-ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
-ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utinit - Common ACPI subsystem initialization
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utinit")
-
-/* Local prototypes */
-static void acpi_ut_terminate(void);
-
-/******************************************************************************
- *
- * FUNCTION: acpi_ut_terminate
- *
- * PARAMETERS: none
- *
- * RETURN: none
- *
- * DESCRIPTION: Free global memory
- *
- ******************************************************************************/
-
-static void acpi_ut_terminate(void)
-{
- struct acpi_gpe_block_info *gpe_block;
- struct acpi_gpe_block_info *next_gpe_block;
- struct acpi_gpe_xrupt_info *gpe_xrupt_info;
- struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
-
- ACPI_FUNCTION_TRACE(ut_terminate);
-
- /* Free global GPE blocks and related info structures */
-
- gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
- while (gpe_xrupt_info) {
- gpe_block = gpe_xrupt_info->gpe_block_list_head;
- while (gpe_block) {
- next_gpe_block = gpe_block->next;
- ACPI_FREE(gpe_block->event_info);
- ACPI_FREE(gpe_block->register_info);
- ACPI_FREE(gpe_block);
-
- gpe_block = next_gpe_block;
- }
- next_gpe_xrupt_info = gpe_xrupt_info->next;
- ACPI_FREE(gpe_xrupt_info);
- gpe_xrupt_info = next_gpe_xrupt_info;
- }
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_subsystem_shutdown
- *
- * PARAMETERS: none
- *
- * RETURN: none
- *
- * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex
- * objects here -- because the AML debugger may be still running.
- *
- ******************************************************************************/
-
-void acpi_ut_subsystem_shutdown(void)
-{
-
- ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
-
- /* Just exit if subsystem is already shutdown */
-
- if (acpi_gbl_shutdown) {
- ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
- return_VOID;
- }
-
- /* Subsystem appears active, go ahead and shut it down */
-
- acpi_gbl_shutdown = TRUE;
- acpi_gbl_startup_flags = 0;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
-
-#ifndef ACPI_ASL_COMPILER
-
- /* Close the acpi_event Handling */
-
- acpi_ev_terminate();
-#endif
-
- /* Close the Namespace */
-
- acpi_ns_terminate();
-
- /* Delete the ACPI tables */
-
- acpi_tb_terminate();
-
- /* Close the globals */
-
- acpi_ut_terminate();
-
- /* Purge the local caches */
-
- (void)acpi_ut_delete_caches();
- return_VOID;
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: utmath - Integer math support routines
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utmath")
-
-/*
- * Support for double-precision integer divide. This code is included here
- * in order to support kernel environments where the double-precision math
- * library is not available.
- */
-#ifndef ACPI_USE_NATIVE_DIVIDE
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_short_divide
- *
- * PARAMETERS: Dividend - 64-bit dividend
- * Divisor - 32-bit divisor
- * out_quotient - Pointer to where the quotient is returned
- * out_remainder - Pointer to where the remainder is returned
- *
- * RETURN: Status (Checks for divide-by-zero)
- *
- * DESCRIPTION: Perform a short (maximum 64 bits divided by 32 bits)
- * divide and modulo. The result is a 64-bit quotient and a
- * 32-bit remainder.
- *
- ******************************************************************************/
-acpi_status
-acpi_ut_short_divide(acpi_integer dividend,
- u32 divisor,
- acpi_integer * out_quotient, u32 * out_remainder)
-{
- union uint64_overlay dividend_ovl;
- union uint64_overlay quotient;
- u32 remainder32;
-
- ACPI_FUNCTION_TRACE(ut_short_divide);
-
- /* Always check for a zero divisor */
-
- if (divisor == 0) {
- ACPI_ERROR((AE_INFO, "Divide by zero"));
- return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
- }
-
- dividend_ovl.full = dividend;
-
- /*
- * The quotient is 64 bits, the remainder is always 32 bits,
- * and is generated by the second divide.
- */
- ACPI_DIV_64_BY_32(0, dividend_ovl.part.hi, divisor,
- quotient.part.hi, remainder32);
- ACPI_DIV_64_BY_32(remainder32, dividend_ovl.part.lo, divisor,
- quotient.part.lo, remainder32);
-
- /* Return only what was requested */
-
- if (out_quotient) {
- *out_quotient = quotient.full;
- }
- if (out_remainder) {
- *out_remainder = remainder32;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_divide
- *
- * PARAMETERS: in_dividend - Dividend
- * in_divisor - Divisor
- * out_quotient - Pointer to where the quotient is returned
- * out_remainder - Pointer to where the remainder is returned
- *
- * RETURN: Status (Checks for divide-by-zero)
- *
- * DESCRIPTION: Perform a divide and modulo.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_divide(acpi_integer in_dividend,
- acpi_integer in_divisor,
- acpi_integer * out_quotient, acpi_integer * out_remainder)
-{
- union uint64_overlay dividend;
- union uint64_overlay divisor;
- union uint64_overlay quotient;
- union uint64_overlay remainder;
- union uint64_overlay normalized_dividend;
- union uint64_overlay normalized_divisor;
- u32 partial1;
- union uint64_overlay partial2;
- union uint64_overlay partial3;
-
- ACPI_FUNCTION_TRACE(ut_divide);
-
- /* Always check for a zero divisor */
-
- if (in_divisor == 0) {
- ACPI_ERROR((AE_INFO, "Divide by zero"));
- return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
- }
-
- divisor.full = in_divisor;
- dividend.full = in_dividend;
- if (divisor.part.hi == 0) {
- /*
- * 1) Simplest case is where the divisor is 32 bits, we can
- * just do two divides
- */
- remainder.part.hi = 0;
-
- /*
- * The quotient is 64 bits, the remainder is always 32 bits,
- * and is generated by the second divide.
- */
- ACPI_DIV_64_BY_32(0, dividend.part.hi, divisor.part.lo,
- quotient.part.hi, partial1);
- ACPI_DIV_64_BY_32(partial1, dividend.part.lo, divisor.part.lo,
- quotient.part.lo, remainder.part.lo);
- }
-
- else {
- /*
- * 2) The general case where the divisor is a full 64 bits
- * is more difficult
- */
- quotient.part.hi = 0;
- normalized_dividend = dividend;
- normalized_divisor = divisor;
-
- /* Normalize the operands (shift until the divisor is < 32 bits) */
-
- do {
- ACPI_SHIFT_RIGHT_64(normalized_divisor.part.hi,
- normalized_divisor.part.lo);
- ACPI_SHIFT_RIGHT_64(normalized_dividend.part.hi,
- normalized_dividend.part.lo);
-
- } while (normalized_divisor.part.hi != 0);
-
- /* Partial divide */
-
- ACPI_DIV_64_BY_32(normalized_dividend.part.hi,
- normalized_dividend.part.lo,
- normalized_divisor.part.lo,
- quotient.part.lo, partial1);
-
- /*
- * The quotient is always 32 bits, and simply requires adjustment.
- * The 64-bit remainder must be generated.
- */
- partial1 = quotient.part.lo * divisor.part.hi;
- partial2.full =
- (acpi_integer) quotient.part.lo * divisor.part.lo;
- partial3.full = (acpi_integer) partial2.part.hi + partial1;
-
- remainder.part.hi = partial3.part.lo;
- remainder.part.lo = partial2.part.lo;
-
- if (partial3.part.hi == 0) {
- if (partial3.part.lo >= dividend.part.hi) {
- if (partial3.part.lo == dividend.part.hi) {
- if (partial2.part.lo > dividend.part.lo) {
- quotient.part.lo--;
- remainder.full -= divisor.full;
- }
- } else {
- quotient.part.lo--;
- remainder.full -= divisor.full;
- }
- }
-
- remainder.full = remainder.full - dividend.full;
- remainder.part.hi = (u32) - ((s32) remainder.part.hi);
- remainder.part.lo = (u32) - ((s32) remainder.part.lo);
-
- if (remainder.part.lo) {
- remainder.part.hi--;
- }
- }
- }
-
- /* Return only what was requested */
-
- if (out_quotient) {
- *out_quotient = quotient.full;
- }
- if (out_remainder) {
- *out_remainder = remainder.full;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-#else
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_short_divide, acpi_ut_divide
- *
- * PARAMETERS: See function headers above
- *
- * DESCRIPTION: Native versions of the ut_divide functions. Use these if either
- * 1) The target is a 64-bit platform and therefore 64-bit
- * integer math is supported directly by the machine.
- * 2) The target is a 32-bit or 16-bit platform, and the
- * double-precision integer math library is available to
- * perform the divide.
- *
- ******************************************************************************/
-acpi_status
-acpi_ut_short_divide(acpi_integer in_dividend,
- u32 divisor,
- acpi_integer * out_quotient, u32 * out_remainder)
-{
-
- ACPI_FUNCTION_TRACE(ut_short_divide);
-
- /* Always check for a zero divisor */
-
- if (divisor == 0) {
- ACPI_ERROR((AE_INFO, "Divide by zero"));
- return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
- }
-
- /* Return only what was requested */
-
- if (out_quotient) {
- *out_quotient = in_dividend / divisor;
- }
- if (out_remainder) {
- *out_remainder = (u32) (in_dividend % divisor);
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-acpi_status
-acpi_ut_divide(acpi_integer in_dividend,
- acpi_integer in_divisor,
- acpi_integer * out_quotient, acpi_integer * out_remainder)
-{
- ACPI_FUNCTION_TRACE(ut_divide);
-
- /* Always check for a zero divisor */
-
- if (in_divisor == 0) {
- ACPI_ERROR((AE_INFO, "Divide by zero"));
- return_ACPI_STATUS(AE_AML_DIVIDE_BY_ZERO);
- }
-
- /* Return only what was requested */
-
- if (out_quotient) {
- *out_quotient = in_dividend / in_divisor;
- }
- if (out_remainder) {
- *out_remainder = in_dividend % in_divisor;
- }
-
- return_ACPI_STATUS(AE_OK);
-}
-
-#endif
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: utmisc - common utility procedures
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <linux/module.h>
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utmisc")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_validate_exception
- *
- * PARAMETERS: Status - The acpi_status code to be formatted
- *
- * RETURN: A string containing the exception text. NULL if exception is
- * not valid.
- *
- * DESCRIPTION: This function validates and translates an ACPI exception into
- * an ASCII string.
- *
- ******************************************************************************/
-const char *acpi_ut_validate_exception(acpi_status status)
-{
- u32 sub_status;
- const char *exception = NULL;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Status is composed of two parts, a "type" and an actual code
- */
- sub_status = (status & ~AE_CODE_MASK);
-
- switch (status & AE_CODE_MASK) {
- case AE_CODE_ENVIRONMENTAL:
-
- if (sub_status <= AE_CODE_ENV_MAX) {
- exception = acpi_gbl_exception_names_env[sub_status];
- }
- break;
-
- case AE_CODE_PROGRAMMER:
-
- if (sub_status <= AE_CODE_PGM_MAX) {
- exception = acpi_gbl_exception_names_pgm[sub_status];
- }
- break;
-
- case AE_CODE_ACPI_TABLES:
-
- if (sub_status <= AE_CODE_TBL_MAX) {
- exception = acpi_gbl_exception_names_tbl[sub_status];
- }
- break;
-
- case AE_CODE_AML:
-
- if (sub_status <= AE_CODE_AML_MAX) {
- exception = acpi_gbl_exception_names_aml[sub_status];
- }
- break;
-
- case AE_CODE_CONTROL:
-
- if (sub_status <= AE_CODE_CTRL_MAX) {
- exception = acpi_gbl_exception_names_ctrl[sub_status];
- }
- break;
-
- default:
- break;
- }
-
- return (ACPI_CAST_PTR(const char, exception));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_is_aml_table
- *
- * PARAMETERS: Table - An ACPI table
- *
- * RETURN: TRUE if table contains executable AML; FALSE otherwise
- *
- * DESCRIPTION: Check ACPI Signature for a table that contains AML code.
- * Currently, these are DSDT,SSDT,PSDT. All other table types are
- * data tables that do not contain AML code.
- *
- ******************************************************************************/
-
-u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
-{
-
- /* These are the only tables that contain executable AML */
-
- if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) ||
- ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) ||
- ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) {
- return (TRUE);
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_allocate_owner_id
- *
- * PARAMETERS: owner_id - Where the new owner ID is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
- * track objects created by the table or method, to be deleted
- * when the method exits or the table is unloaded.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
-{
- u32 i;
- u32 j;
- u32 k;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_allocate_owner_id);
-
- /* Guard against multiple allocations of ID to the same location */
-
- if (*owner_id) {
- ACPI_ERROR((AE_INFO, "Owner ID [%2.2X] already exists",
- *owner_id));
- return_ACPI_STATUS(AE_ALREADY_EXISTS);
- }
-
- /* Mutex for the global ID mask */
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Find a free owner ID, cycle through all possible IDs on repeated
- * allocations. (ACPI_NUM_OWNERID_MASKS + 1) because first index may have
- * to be scanned twice.
- */
- for (i = 0, j = acpi_gbl_last_owner_id_index;
- i < (ACPI_NUM_OWNERID_MASKS + 1); i++, j++) {
- if (j >= ACPI_NUM_OWNERID_MASKS) {
- j = 0; /* Wraparound to start of mask array */
- }
-
- for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) {
- if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) {
-
- /* There are no free IDs in this mask */
-
- break;
- }
-
- if (!(acpi_gbl_owner_id_mask[j] & (1 << k))) {
- /*
- * Found a free ID. The actual ID is the bit index plus one,
- * making zero an invalid Owner ID. Save this as the last ID
- * allocated and update the global ID mask.
- */
- acpi_gbl_owner_id_mask[j] |= (1 << k);
-
- acpi_gbl_last_owner_id_index = (u8) j;
- acpi_gbl_next_owner_id_offset = (u8) (k + 1);
-
- /*
- * Construct encoded ID from the index and bit position
- *
- * Note: Last [j].k (bit 255) is never used and is marked
- * permanently allocated (prevents +1 overflow)
- */
- *owner_id =
- (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j));
-
- ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
- "Allocated OwnerId: %2.2X\n",
- (unsigned int)*owner_id));
- goto exit;
- }
- }
-
- acpi_gbl_next_owner_id_offset = 0;
- }
-
- /*
- * All owner_ids have been allocated. This typically should
- * not happen since the IDs are reused after deallocation. The IDs are
- * allocated upon table load (one per table) and method execution, and
- * they are released when a table is unloaded or a method completes
- * execution.
- *
- * If this error happens, there may be very deep nesting of invoked control
- * methods, or there may be a bug where the IDs are not released.
- */
- status = AE_OWNER_ID_LIMIT;
- ACPI_ERROR((AE_INFO,
- "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
-
- exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_release_owner_id
- *
- * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD
- *
- * RETURN: None. No error is returned because we are either exiting a
- * control method or unloading a table. Either way, we would
- * ignore any error anyway.
- *
- * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 255
- *
- ******************************************************************************/
-
-void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr)
-{
- acpi_owner_id owner_id = *owner_id_ptr;
- acpi_status status;
- u32 index;
- u32 bit;
-
- ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id);
-
- /* Always clear the input owner_id (zero is an invalid ID) */
-
- *owner_id_ptr = 0;
-
- /* Zero is not a valid owner_iD */
-
- if (owner_id == 0) {
- ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id));
- return_VOID;
- }
-
- /* Mutex for the global ID mask */
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES);
- if (ACPI_FAILURE(status)) {
- return_VOID;
- }
-
- /* Normalize the ID to zero */
-
- owner_id--;
-
- /* Decode ID to index/offset pair */
-
- index = ACPI_DIV_32(owner_id);
- bit = 1 << ACPI_MOD_32(owner_id);
-
- /* Free the owner ID only if it is valid */
-
- if (acpi_gbl_owner_id_mask[index] & bit) {
- acpi_gbl_owner_id_mask[index] ^= bit;
- } else {
- ACPI_ERROR((AE_INFO,
- "Release of non-allocated OwnerId: %2.2X",
- owner_id + 1));
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_strupr (strupr)
- *
- * PARAMETERS: src_string - The source string to convert
- *
- * RETURN: None
- *
- * DESCRIPTION: Convert string to uppercase
- *
- * NOTE: This is not a POSIX function, so it appears here, not in utclib.c
- *
- ******************************************************************************/
-
-void acpi_ut_strupr(char *src_string)
-{
- char *string;
-
- ACPI_FUNCTION_ENTRY();
-
- if (!src_string) {
- return;
- }
-
- /* Walk entire string, uppercasing the letters */
-
- for (string = src_string; *string; string++) {
- *string = (char)ACPI_TOUPPER(*string);
- }
-
- return;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_print_string
- *
- * PARAMETERS: String - Null terminated ASCII string
- * max_length - Maximum output length
- *
- * RETURN: None
- *
- * DESCRIPTION: Dump an ASCII string with support for ACPI-defined escape
- * sequences.
- *
- ******************************************************************************/
-
-void acpi_ut_print_string(char *string, u8 max_length)
-{
- u32 i;
-
- if (!string) {
- acpi_os_printf("<\"NULL STRING PTR\">");
- return;
- }
-
- acpi_os_printf("\"");
- for (i = 0; string[i] && (i < max_length); i++) {
-
- /* Escape sequences */
-
- switch (string[i]) {
- case 0x07:
- acpi_os_printf("\\a"); /* BELL */
- break;
-
- case 0x08:
- acpi_os_printf("\\b"); /* BACKSPACE */
- break;
-
- case 0x0C:
- acpi_os_printf("\\f"); /* FORMFEED */
- break;
-
- case 0x0A:
- acpi_os_printf("\\n"); /* LINEFEED */
- break;
-
- case 0x0D:
- acpi_os_printf("\\r"); /* CARRIAGE RETURN */
- break;
-
- case 0x09:
- acpi_os_printf("\\t"); /* HORIZONTAL TAB */
- break;
-
- case 0x0B:
- acpi_os_printf("\\v"); /* VERTICAL TAB */
- break;
-
- case '\'': /* Single Quote */
- case '\"': /* Double Quote */
- case '\\': /* Backslash */
- acpi_os_printf("\\%c", (int)string[i]);
- break;
-
- default:
-
- /* Check for printable character or hex escape */
-
- if (ACPI_IS_PRINT(string[i])) {
- /* This is a normal character */
-
- acpi_os_printf("%c", (int)string[i]);
- } else {
- /* All others will be Hex escapes */
-
- acpi_os_printf("\\x%2.2X", (s32) string[i]);
- }
- break;
- }
- }
- acpi_os_printf("\"");
-
- if (i == max_length && string[i]) {
- acpi_os_printf("...");
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_dword_byte_swap
- *
- * PARAMETERS: Value - Value to be converted
- *
- * RETURN: u32 integer with bytes swapped
- *
- * DESCRIPTION: Convert a 32-bit value to big-endian (swap the bytes)
- *
- ******************************************************************************/
-
-u32 acpi_ut_dword_byte_swap(u32 value)
-{
- union {
- u32 value;
- u8 bytes[4];
- } out;
- union {
- u32 value;
- u8 bytes[4];
- } in;
-
- ACPI_FUNCTION_ENTRY();
-
- in.value = value;
-
- out.bytes[0] = in.bytes[3];
- out.bytes[1] = in.bytes[2];
- out.bytes[2] = in.bytes[1];
- out.bytes[3] = in.bytes[0];
-
- return (out.value);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_set_integer_width
- *
- * PARAMETERS: Revision From DSDT header
- *
- * RETURN: None
- *
- * DESCRIPTION: Set the global integer bit width based upon the revision
- * of the DSDT. For Revision 1 and 0, Integers are 32 bits.
- * For Revision 2 and above, Integers are 64 bits. Yes, this
- * makes a difference.
- *
- ******************************************************************************/
-
-void acpi_ut_set_integer_width(u8 revision)
-{
-
- if (revision < 2) {
-
- /* 32-bit case */
-
- acpi_gbl_integer_bit_width = 32;
- acpi_gbl_integer_nybble_width = 8;
- acpi_gbl_integer_byte_width = 4;
- } else {
- /* 64-bit case (ACPI 2.0+) */
-
- acpi_gbl_integer_bit_width = 64;
- acpi_gbl_integer_nybble_width = 16;
- acpi_gbl_integer_byte_width = 8;
- }
-}
-
-#ifdef ACPI_DEBUG_OUTPUT
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_display_init_pathname
- *
- * PARAMETERS: Type - Object type of the node
- * obj_handle - Handle whose pathname will be displayed
- * Path - Additional path string to be appended.
- * (NULL if no extra path)
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: Display full pathname of an object, DEBUG ONLY
- *
- ******************************************************************************/
-
-void
-acpi_ut_display_init_pathname(u8 type,
- struct acpi_namespace_node *obj_handle,
- char *path)
-{
- acpi_status status;
- struct acpi_buffer buffer;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Only print the path if the appropriate debug level is enabled */
-
- if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
- return;
- }
-
- /* Get the full pathname to the node */
-
- buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
- status = acpi_ns_handle_to_pathname(obj_handle, &buffer);
- if (ACPI_FAILURE(status)) {
- return;
- }
-
- /* Print what we're doing */
-
- switch (type) {
- case ACPI_TYPE_METHOD:
- acpi_os_printf("Executing ");
- break;
-
- default:
- acpi_os_printf("Initializing ");
- break;
- }
-
- /* Print the object type and pathname */
-
- acpi_os_printf("%-12s %s",
- acpi_ut_get_type_name(type), (char *)buffer.pointer);
-
- /* Extra path is used to append names like _STA, _INI, etc. */
-
- if (path) {
- acpi_os_printf(".%s", path);
- }
- acpi_os_printf("\n");
-
- ACPI_FREE(buffer.pointer);
-}
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_valid_acpi_char
- *
- * PARAMETERS: Char - The character to be examined
- * Position - Byte position (0-3)
- *
- * RETURN: TRUE if the character is valid, FALSE otherwise
- *
- * DESCRIPTION: Check for a valid ACPI character. Must be one of:
- * 1) Upper case alpha
- * 2) numeric
- * 3) underscore
- *
- * We allow a '!' as the last character because of the ASF! table
- *
- ******************************************************************************/
-
-u8 acpi_ut_valid_acpi_char(char character, u32 position)
-{
-
- if (!((character >= 'A' && character <= 'Z') ||
- (character >= '0' && character <= '9') || (character == '_'))) {
-
- /* Allow a '!' in the last position */
-
- if (character == '!' && position == 3) {
- return (TRUE);
- }
-
- return (FALSE);
- }
-
- return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_valid_acpi_name
- *
- * PARAMETERS: Name - The name to be examined
- *
- * RETURN: TRUE if the name is valid, FALSE otherwise
- *
- * DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
- * 1) Upper case alpha
- * 2) numeric
- * 3) underscore
- *
- ******************************************************************************/
-
-u8 acpi_ut_valid_acpi_name(u32 name)
-{
- u32 i;
-
- ACPI_FUNCTION_ENTRY();
-
- for (i = 0; i < ACPI_NAME_SIZE; i++) {
- if (!acpi_ut_valid_acpi_char
- ((ACPI_CAST_PTR(char, &name))[i], i)) {
- return (FALSE);
- }
- }
-
- return (TRUE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_repair_name
- *
- * PARAMETERS: Name - The ACPI name to be repaired
- *
- * RETURN: Repaired version of the name
- *
- * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and
- * return the new name.
- *
- ******************************************************************************/
-
-acpi_name acpi_ut_repair_name(char *name)
-{
- u32 i;
- char new_name[ACPI_NAME_SIZE];
-
- for (i = 0; i < ACPI_NAME_SIZE; i++) {
- new_name[i] = name[i];
-
- /*
- * Replace a bad character with something printable, yet technically
- * still invalid. This prevents any collisions with existing "good"
- * names in the namespace.
- */
- if (!acpi_ut_valid_acpi_char(name[i], i)) {
- new_name[i] = '*';
- }
- }
-
- return (*(u32 *) new_name);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_strtoul64
- *
- * PARAMETERS: String - Null terminated string
- * Base - Radix of the string: 16 or ACPI_ANY_BASE;
- * ACPI_ANY_BASE means 'in behalf of to_integer'
- * ret_integer - Where the converted integer is returned
- *
- * RETURN: Status and Converted value
- *
- * DESCRIPTION: Convert a string into an unsigned value. Performs either a
- * 32-bit or 64-bit conversion, depending on the current mode
- * of the interpreter.
- * NOTE: Does not support Octal strings, not needed.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
-{
- u32 this_digit = 0;
- acpi_integer return_value = 0;
- acpi_integer quotient;
- acpi_integer dividend;
- u32 to_integer_op = (base == ACPI_ANY_BASE);
- u32 mode32 = (acpi_gbl_integer_byte_width == 4);
- u8 valid_digits = 0;
- u8 sign_of0x = 0;
- u8 term = 0;
-
- ACPI_FUNCTION_TRACE_STR(ut_stroul64, string);
-
- switch (base) {
- case ACPI_ANY_BASE:
- case 16:
- break;
-
- default:
- /* Invalid Base */
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (!string) {
- goto error_exit;
- }
-
- /* Skip over any white space in the buffer */
-
- while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) {
- string++;
- }
-
- if (to_integer_op) {
- /*
- * Base equal to ACPI_ANY_BASE means 'to_integer operation case'.
- * We need to determine if it is decimal or hexadecimal.
- */
- if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) {
- sign_of0x = 1;
- base = 16;
-
- /* Skip over the leading '0x' */
- string += 2;
- } else {
- base = 10;
- }
- }
-
- /* Any string left? Check that '0x' is not followed by white space. */
-
- if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') {
- if (to_integer_op) {
- goto error_exit;
- } else {
- goto all_done;
- }
- }
-
- /*
- * Perform a 32-bit or 64-bit conversion, depending upon the current
- * execution mode of the interpreter
- */
- dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
-
- /* Main loop: convert the string to a 32- or 64-bit integer */
-
- while (*string) {
- if (ACPI_IS_DIGIT(*string)) {
-
- /* Convert ASCII 0-9 to Decimal value */
-
- this_digit = ((u8) * string) - '0';
- } else if (base == 10) {
-
- /* Digit is out of range; possible in to_integer case only */
-
- term = 1;
- } else {
- this_digit = (u8) ACPI_TOUPPER(*string);
- if (ACPI_IS_XDIGIT((char)this_digit)) {
-
- /* Convert ASCII Hex char to value */
-
- this_digit = this_digit - 'A' + 10;
- } else {
- term = 1;
- }
- }
-
- if (term) {
- if (to_integer_op) {
- goto error_exit;
- } else {
- break;
- }
- } else if ((valid_digits == 0) && (this_digit == 0)
- && !sign_of0x) {
-
- /* Skip zeros */
- string++;
- continue;
- }
-
- valid_digits++;
-
- if (sign_of0x && ((valid_digits > 16)
- || ((valid_digits > 8) && mode32))) {
- /*
- * This is to_integer operation case.
- * No any restrictions for string-to-integer conversion,
- * see ACPI spec.
- */
- goto error_exit;
- }
-
- /* Divide the digit into the correct position */
-
- (void)
- acpi_ut_short_divide((dividend - (acpi_integer) this_digit),
- base, "ient, NULL);
-
- if (return_value > quotient) {
- if (to_integer_op) {
- goto error_exit;
- } else {
- break;
- }
- }
-
- return_value *= base;
- return_value += this_digit;
- string++;
- }
-
- /* All done, normal exit */
-
- all_done:
-
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64(return_value)));
-
- *ret_integer = return_value;
- return_ACPI_STATUS(AE_OK);
-
- error_exit:
- /* Base was set/validated above */
-
- if (base == 10) {
- return_ACPI_STATUS(AE_BAD_DECIMAL_CONSTANT);
- } else {
- return_ACPI_STATUS(AE_BAD_HEX_CONSTANT);
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_update_state_and_push
- *
- * PARAMETERS: Object - Object to be added to the new state
- * Action - Increment/Decrement
- * state_list - List the state will be added to
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new state and push it
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_create_update_state_and_push(union acpi_operand_object *object,
- u16 action,
- union acpi_generic_state **state_list)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_ENTRY();
-
- /* Ignore null objects; these are expected */
-
- if (!object) {
- return (AE_OK);
- }
-
- state = acpi_ut_create_update_state(object, action);
- if (!state) {
- return (AE_NO_MEMORY);
- }
-
- acpi_ut_push_generic_state(state_list, state);
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_walk_package_tree
- *
- * PARAMETERS: source_object - The package to walk
- * target_object - Target object (if package is being copied)
- * walk_callback - Called once for each package element
- * Context - Passed to the callback function
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk through a package
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
- void *target_object,
- acpi_pkg_callback walk_callback, void *context)
-{
- acpi_status status = AE_OK;
- union acpi_generic_state *state_list = NULL;
- union acpi_generic_state *state;
- u32 this_index;
- union acpi_operand_object *this_source_obj;
-
- ACPI_FUNCTION_TRACE(ut_walk_package_tree);
-
- state = acpi_ut_create_pkg_state(source_object, target_object, 0);
- if (!state) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- while (state) {
-
- /* Get one element of the package */
-
- this_index = state->pkg.index;
- this_source_obj = (union acpi_operand_object *)
- state->pkg.source_object->package.elements[this_index];
-
- /*
- * Check for:
- * 1) An uninitialized package element. It is completely
- * legal to declare a package and leave it uninitialized
- * 2) Not an internal object - can be a namespace node instead
- * 3) Any type other than a package. Packages are handled in else
- * case below.
- */
- if ((!this_source_obj) ||
- (ACPI_GET_DESCRIPTOR_TYPE(this_source_obj) !=
- ACPI_DESC_TYPE_OPERAND)
- || (ACPI_GET_OBJECT_TYPE(this_source_obj) !=
- ACPI_TYPE_PACKAGE)) {
- status =
- walk_callback(ACPI_COPY_TYPE_SIMPLE,
- this_source_obj, state, context);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- state->pkg.index++;
- while (state->pkg.index >=
- state->pkg.source_object->package.count) {
- /*
- * We've handled all of the objects at this level, This means
- * that we have just completed a package. That package may
- * have contained one or more packages itself.
- *
- * Delete this state and pop the previous state (package).
- */
- acpi_ut_delete_generic_state(state);
- state = acpi_ut_pop_generic_state(&state_list);
-
- /* Finished when there are no more states */
-
- if (!state) {
- /*
- * We have handled all of the objects in the top level
- * package just add the length of the package objects
- * and exit
- */
- return_ACPI_STATUS(AE_OK);
- }
-
- /*
- * Go back up a level and move the index past the just
- * completed package object.
- */
- state->pkg.index++;
- }
- } else {
- /* This is a subobject of type package */
-
- status =
- walk_callback(ACPI_COPY_TYPE_PACKAGE,
- this_source_obj, state, context);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Push the current state and create a new one
- * The callback above returned a new target package object.
- */
- acpi_ut_push_generic_state(&state_list, state);
- state = acpi_ut_create_pkg_state(this_source_obj,
- state->pkg.
- this_target_obj, 0);
- if (!state) {
-
- /* Free any stacked Update State objects */
-
- while (state_list) {
- state =
- acpi_ut_pop_generic_state
- (&state_list);
- acpi_ut_delete_generic_state(state);
- }
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- }
- }
-
- /* We should never get here */
-
- return_ACPI_STATUS(AE_AML_INTERNAL);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_error, acpi_exception, acpi_warning, acpi_info
- *
- * PARAMETERS: module_name - Caller's module name (for error output)
- * line_number - Caller's line number (for error output)
- * Format - Printf format string + additional args
- *
- * RETURN: None
- *
- * DESCRIPTION: Print message with module/line/version info
- *
- ******************************************************************************/
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_error(const char *module_name, u32 line_number, const char *format, ...)
-{
- va_list args;
-
- acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
-
- va_start(args, format);
- acpi_os_vprintf(format, args);
- acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
- va_end(args);
-}
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_exception(const char *module_name,
- u32 line_number, acpi_status status, const char *format, ...)
-{
- va_list args;
-
- acpi_os_printf("ACPI Exception (%s-%04d): %s, ", module_name,
- line_number, acpi_format_exception(status));
-
- va_start(args, format);
- acpi_os_vprintf(format, args);
- acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
- va_end(args);
-}
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
-{
- va_list args;
-
- acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number);
-
- va_start(args, format);
- acpi_os_vprintf(format, args);
- acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
- va_end(args);
-}
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_info(const char *module_name, u32 line_number, const char *format, ...)
-{
- va_list args;
-
- /*
- * Removed module_name, line_number, and acpica version, not needed
- * for info output
- */
- acpi_os_printf("ACPI: ");
-
- va_start(args, format);
- acpi_os_vprintf(format, args);
- acpi_os_printf("\n");
- va_end(args);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_error)
-ACPI_EXPORT_SYMBOL(acpi_exception)
-ACPI_EXPORT_SYMBOL(acpi_warning)
-ACPI_EXPORT_SYMBOL(acpi_info)
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: utmutex - local mutex support
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utmutex")
-
-/* Local prototypes */
-static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id);
-
-static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_mutex_initialize
- *
- * PARAMETERS: None.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create the system mutex objects.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_mutex_initialize(void)
-{
- u32 i;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_mutex_initialize);
-
- /*
- * Create each of the predefined mutex objects
- */
- for (i = 0; i < ACPI_NUM_MUTEX; i++) {
- status = acpi_ut_create_mutex(i);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /* Create the spinlocks for use at interrupt level */
-
- spin_lock_init(acpi_gbl_gpe_lock);
- spin_lock_init(acpi_gbl_hardware_lock);
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_mutex_terminate
- *
- * PARAMETERS: None.
- *
- * RETURN: None.
- *
- * DESCRIPTION: Delete all of the system mutex objects.
- *
- ******************************************************************************/
-
-void acpi_ut_mutex_terminate(void)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE(ut_mutex_terminate);
-
- /*
- * Delete each predefined mutex object
- */
- for (i = 0; i < ACPI_NUM_MUTEX; i++) {
- (void)acpi_ut_delete_mutex(i);
- }
-
- /* Delete the spinlocks */
-
- acpi_os_delete_lock(acpi_gbl_gpe_lock);
- acpi_os_delete_lock(acpi_gbl_hardware_lock);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be created
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a mutex object.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id);
-
- if (mutex_id > ACPI_MAX_MUTEX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (!acpi_gbl_mutex_info[mutex_id].mutex) {
- status =
- acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex);
- acpi_gbl_mutex_info[mutex_id].thread_id =
- ACPI_MUTEX_NOT_ACQUIRED;
- acpi_gbl_mutex_info[mutex_id].use_count = 0;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be deleted
- *
- * RETURN: Status
- *
- * DESCRIPTION: Delete a mutex object.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
-{
-
- ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id);
-
- if (mutex_id > ACPI_MAX_MUTEX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
-
- acpi_gbl_mutex_info[mutex_id].mutex = NULL;
- acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_acquire_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be acquired
- *
- * RETURN: Status
- *
- * DESCRIPTION: Acquire a mutex object.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_status status;
- acpi_thread_id this_thread_id;
-
- ACPI_FUNCTION_NAME(ut_acquire_mutex);
-
- if (mutex_id > ACPI_MAX_MUTEX) {
- return (AE_BAD_PARAMETER);
- }
-
- this_thread_id = acpi_os_get_thread_id();
-
-#ifdef ACPI_MUTEX_DEBUG
- {
- u32 i;
- /*
- * Mutex debug code, for internal debugging only.
- *
- * Deadlock prevention. Check if this thread owns any mutexes of value
- * greater than or equal to this one. If so, the thread has violated
- * the mutex ordering rule. This indicates a coding error somewhere in
- * the ACPI subsystem code.
- */
- for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
- if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
- if (i == mutex_id) {
- ACPI_ERROR((AE_INFO,
- "Mutex [%s] already acquired by this thread [%X]",
- acpi_ut_get_mutex_name
- (mutex_id),
- this_thread_id));
-
- return (AE_ALREADY_ACQUIRED);
- }
-
- ACPI_ERROR((AE_INFO,
- "Invalid acquire order: Thread %X owns [%s], wants [%s]",
- this_thread_id,
- acpi_ut_get_mutex_name(i),
- acpi_ut_get_mutex_name(mutex_id)));
-
- return (AE_ACQUIRE_DEADLOCK);
- }
- }
- }
-#endif
-
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %lX attempting to acquire Mutex [%s]\n",
- (unsigned long)this_thread_id,
- acpi_ut_get_mutex_name(mutex_id)));
-
- status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
- ACPI_WAIT_FOREVER);
- if (ACPI_SUCCESS(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %lX acquired Mutex [%s]\n",
- (unsigned long)this_thread_id,
- acpi_ut_get_mutex_name(mutex_id)));
-
- acpi_gbl_mutex_info[mutex_id].use_count++;
- acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id;
- } else {
- ACPI_EXCEPTION((AE_INFO, status,
- "Thread %lX could not acquire Mutex [%X]",
- (unsigned long)this_thread_id, mutex_id));
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_release_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be released
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release a mutex object.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_thread_id this_thread_id;
-
- ACPI_FUNCTION_NAME(ut_release_mutex);
-
- this_thread_id = acpi_os_get_thread_id();
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %lX releasing Mutex [%s]\n",
- (unsigned long)this_thread_id,
- acpi_ut_get_mutex_name(mutex_id)));
-
- if (mutex_id > ACPI_MAX_MUTEX) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Mutex must be acquired in order to release it!
- */
- if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) {
- ACPI_ERROR((AE_INFO,
- "Mutex [%X] is not acquired, cannot release",
- mutex_id));
-
- return (AE_NOT_ACQUIRED);
- }
-#ifdef ACPI_MUTEX_DEBUG
- {
- u32 i;
- /*
- * Mutex debug code, for internal debugging only.
- *
- * Deadlock prevention. Check if this thread owns any mutexes of value
- * greater than this one. If so, the thread has violated the mutex
- * ordering rule. This indicates a coding error somewhere in
- * the ACPI subsystem code.
- */
- for (i = mutex_id; i < ACPI_NUM_MUTEX; i++) {
- if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
- if (i == mutex_id) {
- continue;
- }
-
- ACPI_ERROR((AE_INFO,
- "Invalid release order: owns [%s], releasing [%s]",
- acpi_ut_get_mutex_name(i),
- acpi_ut_get_mutex_name(mutex_id)));
-
- return (AE_RELEASE_DEADLOCK);
- }
- }
- }
-#endif
-
- /* Mark unlocked FIRST */
-
- acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
-
- acpi_os_release_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
- return (AE_OK);
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utobject - ACPI object create/delete/size/cache routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utobject")
-
-/* Local prototypes */
-static acpi_status
-acpi_ut_get_simple_object_size(union acpi_operand_object *obj,
- acpi_size * obj_length);
-
-static acpi_status
-acpi_ut_get_package_object_size(union acpi_operand_object *obj,
- acpi_size * obj_length);
-
-static acpi_status
-acpi_ut_get_element_length(u8 object_type,
- union acpi_operand_object *source_object,
- union acpi_generic_state *state, void *context);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_internal_object_dbg
- *
- * PARAMETERS: module_name - Source file name of caller
- * line_number - Line number of caller
- * component_id - Component type of caller
- * Type - ACPI Type of the new object
- *
- * RETURN: A new internal object, null on failure
- *
- * DESCRIPTION: Create and initialize a new internal object.
- *
- * NOTE: We always allocate the worst-case object descriptor because
- * these objects are cached, and we want them to be
- * one-size-satisifies-any-request. This in itself may not be
- * the most memory efficient, but the efficiency of the object
- * cache should more than make up for this!
- *
- ******************************************************************************/
-
-union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
- *module_name,
- u32 line_number,
- u32 component_id,
- acpi_object_type
- type)
-{
- union acpi_operand_object *object;
- union acpi_operand_object *second_object;
-
- ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg,
- acpi_ut_get_type_name(type));
-
- /* Allocate the raw object descriptor */
-
- object =
- acpi_ut_allocate_object_desc_dbg(module_name, line_number,
- component_id);
- if (!object) {
- return_PTR(NULL);
- }
-
- switch (type) {
- case ACPI_TYPE_REGION:
- case ACPI_TYPE_BUFFER_FIELD:
- case ACPI_TYPE_LOCAL_BANK_FIELD:
-
- /* These types require a secondary object */
-
- second_object = acpi_ut_allocate_object_desc_dbg(module_name,
- line_number,
- component_id);
- if (!second_object) {
- acpi_ut_delete_object_desc(object);
- return_PTR(NULL);
- }
-
- second_object->common.type = ACPI_TYPE_LOCAL_EXTRA;
- second_object->common.reference_count = 1;
-
- /* Link the second object to the first */
-
- object->common.next_object = second_object;
- break;
-
- default:
- /* All others have no secondary object */
- break;
- }
-
- /* Save the object type in the object descriptor */
-
- object->common.type = (u8) type;
-
- /* Init the reference count */
-
- object->common.reference_count = 1;
-
- /* Any per-type initialization should go here */
-
- return_PTR(object);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_package_object
- *
- * PARAMETERS: Count - Number of package elements
- *
- * RETURN: Pointer to a new Package object, null on failure
- *
- * DESCRIPTION: Create a fully initialized package object
- *
- ******************************************************************************/
-
-union acpi_operand_object *acpi_ut_create_package_object(u32 count)
-{
- union acpi_operand_object *package_desc;
- union acpi_operand_object **package_elements;
-
- ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count);
-
- /* Create a new Package object */
-
- package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
- if (!package_desc) {
- return_PTR(NULL);
- }
-
- /*
- * Create the element array. Count+1 allows the array to be null
- * terminated.
- */
- package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count +
- 1) * sizeof(void *));
- if (!package_elements) {
- acpi_ut_remove_reference(package_desc);
- return_PTR(NULL);
- }
-
- package_desc->package.count = count;
- package_desc->package.elements = package_elements;
- return_PTR(package_desc);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_buffer_object
- *
- * PARAMETERS: buffer_size - Size of buffer to be created
- *
- * RETURN: Pointer to a new Buffer object, null on failure
- *
- * DESCRIPTION: Create a fully initialized buffer object
- *
- ******************************************************************************/
-
-union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
-{
- union acpi_operand_object *buffer_desc;
- u8 *buffer = NULL;
-
- ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size);
-
- /* Create a new Buffer object */
-
- buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
- if (!buffer_desc) {
- return_PTR(NULL);
- }
-
- /* Create an actual buffer only if size > 0 */
-
- if (buffer_size > 0) {
-
- /* Allocate the actual buffer */
-
- buffer = ACPI_ALLOCATE_ZEROED(buffer_size);
- if (!buffer) {
- ACPI_ERROR((AE_INFO, "Could not allocate size %X",
- (u32) buffer_size));
- acpi_ut_remove_reference(buffer_desc);
- return_PTR(NULL);
- }
- }
-
- /* Complete buffer object initialization */
-
- buffer_desc->buffer.flags |= AOPOBJ_DATA_VALID;
- buffer_desc->buffer.pointer = buffer;
- buffer_desc->buffer.length = (u32) buffer_size;
-
- /* Return the new buffer descriptor */
-
- return_PTR(buffer_desc);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_string_object
- *
- * PARAMETERS: string_size - Size of string to be created. Does not
- * include NULL terminator, this is added
- * automatically.
- *
- * RETURN: Pointer to a new String object
- *
- * DESCRIPTION: Create a fully initialized string object
- *
- ******************************************************************************/
-
-union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
-{
- union acpi_operand_object *string_desc;
- char *string;
-
- ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size);
-
- /* Create a new String object */
-
- string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING);
- if (!string_desc) {
- return_PTR(NULL);
- }
-
- /*
- * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
- * NOTE: Zero-length strings are NULL terminated
- */
- string = ACPI_ALLOCATE_ZEROED(string_size + 1);
- if (!string) {
- ACPI_ERROR((AE_INFO, "Could not allocate size %X",
- (u32) string_size));
- acpi_ut_remove_reference(string_desc);
- return_PTR(NULL);
- }
-
- /* Complete string object initialization */
-
- string_desc->string.pointer = string;
- string_desc->string.length = (u32) string_size;
-
- /* Return the new string descriptor */
-
- return_PTR(string_desc);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_valid_internal_object
- *
- * PARAMETERS: Object - Object to be validated
- *
- * RETURN: TRUE if object is valid, FALSE otherwise
- *
- * DESCRIPTION: Validate a pointer to be an union acpi_operand_object
- *
- ******************************************************************************/
-
-u8 acpi_ut_valid_internal_object(void *object)
-{
-
- ACPI_FUNCTION_NAME(ut_valid_internal_object);
-
- /* Check for a null pointer */
-
- if (!object) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "**** Null Object Ptr\n"));
- return (FALSE);
- }
-
- /* Check the descriptor type field */
-
- switch (ACPI_GET_DESCRIPTOR_TYPE(object)) {
- case ACPI_DESC_TYPE_OPERAND:
-
- /* The object appears to be a valid union acpi_operand_object */
-
- return (TRUE);
-
- default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "%p is not not an ACPI operand obj [%s]\n",
- object, acpi_ut_get_descriptor_name(object)));
- break;
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_allocate_object_desc_dbg
- *
- * PARAMETERS: module_name - Caller's module name (for error output)
- * line_number - Caller's line number (for error output)
- * component_id - Caller's component ID (for error output)
- *
- * RETURN: Pointer to newly allocated object descriptor. Null on error
- *
- * DESCRIPTION: Allocate a new object descriptor. Gracefully handle
- * error conditions.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
- u32 line_number, u32 component_id)
-{
- union acpi_operand_object *object;
-
- ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg);
-
- object = acpi_os_acquire_object(acpi_gbl_operand_cache);
- if (!object) {
- ACPI_ERROR((module_name, line_number,
- "Could not allocate an object descriptor"));
-
- return_PTR(NULL);
- }
-
- /* Mark the descriptor type */
-
- memset(object, 0, sizeof(union acpi_operand_object));
- ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
-
- ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
- object, (u32) sizeof(union acpi_operand_object)));
-
- return_PTR(object);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_object_desc
- *
- * PARAMETERS: Object - An Acpi internal object to be deleted
- *
- * RETURN: None.
- *
- * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache
- *
- ******************************************************************************/
-
-void acpi_ut_delete_object_desc(union acpi_operand_object *object)
-{
- ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object);
-
- /* Object must be an union acpi_operand_object */
-
- if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
- ACPI_ERROR((AE_INFO,
- "%p is not an ACPI Operand object [%s]", object,
- acpi_ut_get_descriptor_name(object)));
- return_VOID;
- }
-
- (void)acpi_os_release_object(acpi_gbl_operand_cache, object);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_simple_object_size
- *
- * PARAMETERS: internal_object - An ACPI operand object
- * obj_length - Where the length is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to determine the space required to
- * contain a simple object for return to an external user.
- *
- * The length includes the object structure plus any additional
- * needed space.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
- acpi_size * obj_length)
-{
- acpi_size length;
- acpi_size size;
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
-
- /*
- * Handle a null object (Could be a uninitialized package
- * element -- which is legal)
- */
- if (!internal_object) {
- *obj_length = sizeof(union acpi_object);
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Start with the length of the Acpi object */
-
- length = sizeof(union acpi_object);
-
- if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
-
- /* Object is a named object (reference), just return the length */
-
- *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
- return_ACPI_STATUS(status);
- }
-
- /*
- * The final length depends on the object type
- * Strings and Buffers are packed right up against the parent object and
- * must be accessed bytewise or there may be alignment problems on
- * certain processors
- */
- switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
- case ACPI_TYPE_STRING:
-
- length += (acpi_size) internal_object->string.length + 1;
- break;
-
- case ACPI_TYPE_BUFFER:
-
- length += (acpi_size) internal_object->buffer.length;
- break;
-
- case ACPI_TYPE_INTEGER:
- case ACPI_TYPE_PROCESSOR:
- case ACPI_TYPE_POWER:
-
- /* No extra data for these types */
-
- break;
-
- case ACPI_TYPE_LOCAL_REFERENCE:
-
- switch (internal_object->reference.class) {
- case ACPI_REFCLASS_NAME:
-
- /*
- * Get the actual length of the full pathname to this object.
- * The reference will be converted to the pathname to the object
- */
- size =
- acpi_ns_get_pathname_length(internal_object->
- reference.node);
- if (!size) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
- break;
-
- default:
-
- /*
- * No other reference opcodes are supported.
- * Notably, Locals and Args are not supported, but this may be
- * required eventually.
- */
- ACPI_ERROR((AE_INFO,
- "Cannot convert to external object - "
- "unsupported Reference Class [%s] %X in object %p",
- acpi_ut_get_reference_name(internal_object),
- internal_object->reference.class,
- internal_object));
- status = AE_TYPE;
- break;
- }
- break;
-
- default:
-
- ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
- "unsupported type [%s] %X in object %p",
- acpi_ut_get_object_type_name(internal_object),
- ACPI_GET_OBJECT_TYPE(internal_object),
- internal_object));
- status = AE_TYPE;
- break;
- }
-
- /*
- * Account for the space required by the object rounded up to the next
- * multiple of the machine word size. This keeps each object aligned
- * on a machine word boundary. (preventing alignment faults on some
- * machines.)
- */
- *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_element_length
- *
- * PARAMETERS: acpi_pkg_callback
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get the length of one package element.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_get_element_length(u8 object_type,
- union acpi_operand_object *source_object,
- union acpi_generic_state *state, void *context)
-{
- acpi_status status = AE_OK;
- struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
- acpi_size object_space;
-
- switch (object_type) {
- case ACPI_COPY_TYPE_SIMPLE:
-
- /*
- * Simple object - just get the size (Null object/entry is handled
- * here also) and sum it into the running package length
- */
- status =
- acpi_ut_get_simple_object_size(source_object,
- &object_space);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
-
- info->length += object_space;
- break;
-
- case ACPI_COPY_TYPE_PACKAGE:
-
- /* Package object - nothing much to do here, let the walk handle it */
-
- info->num_packages++;
- state->pkg.this_target_obj = NULL;
- break;
-
- default:
-
- /* No other types allowed */
-
- return (AE_BAD_PARAMETER);
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_package_object_size
- *
- * PARAMETERS: internal_object - An ACPI internal object
- * obj_length - Where the length is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to determine the space required to
- * contain a package object for return to an external user.
- *
- * This is moderately complex since a package contains other
- * objects including packages.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
- acpi_size * obj_length)
-{
- acpi_status status;
- struct acpi_pkg_info info;
-
- ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
-
- info.length = 0;
- info.object_space = 0;
- info.num_packages = 1;
-
- status = acpi_ut_walk_package_tree(internal_object, NULL,
- acpi_ut_get_element_length, &info);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * We have handled all of the objects in all levels of the package.
- * just add the length of the package objects themselves.
- * Round up to the next machine word.
- */
- info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
- (acpi_size) info.num_packages;
-
- /* Return the total package length */
-
- *obj_length = info.length;
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_object_size
- *
- * PARAMETERS: internal_object - An ACPI internal object
- * obj_length - Where the length will be returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to determine the space required to
- * contain an object for return to an API user.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_get_object_size(union acpi_operand_object *internal_object,
- acpi_size * obj_length)
-{
- acpi_status status;
-
- ACPI_FUNCTION_ENTRY();
-
- if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) ==
- ACPI_DESC_TYPE_OPERAND)
- && (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE)) {
- status =
- acpi_ut_get_package_object_size(internal_object,
- obj_length);
- } else {
- status =
- acpi_ut_get_simple_object_size(internal_object, obj_length);
- }
-
- return (status);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: utresrc - Resource management utilities
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/amlresrc.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utresrc")
-#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)
-/*
- * Strings used to decode resource descriptors.
- * Used by both the disasssembler and the debugger resource dump routines
- */
-const char *acpi_gbl_bm_decode[] = {
- "NotBusMaster",
- "BusMaster"
-};
-
-const char *acpi_gbl_config_decode[] = {
- "0 - Good Configuration",
- "1 - Acceptable Configuration",
- "2 - Suboptimal Configuration",
- "3 - ***Invalid Configuration***",
-};
-
-const char *acpi_gbl_consume_decode[] = {
- "ResourceProducer",
- "ResourceConsumer"
-};
-
-const char *acpi_gbl_dec_decode[] = {
- "PosDecode",
- "SubDecode"
-};
-
-const char *acpi_gbl_he_decode[] = {
- "Level",
- "Edge"
-};
-
-const char *acpi_gbl_io_decode[] = {
- "Decode10",
- "Decode16"
-};
-
-const char *acpi_gbl_ll_decode[] = {
- "ActiveHigh",
- "ActiveLow"
-};
-
-const char *acpi_gbl_max_decode[] = {
- "MaxNotFixed",
- "MaxFixed"
-};
-
-const char *acpi_gbl_mem_decode[] = {
- "NonCacheable",
- "Cacheable",
- "WriteCombining",
- "Prefetchable"
-};
-
-const char *acpi_gbl_min_decode[] = {
- "MinNotFixed",
- "MinFixed"
-};
-
-const char *acpi_gbl_mtp_decode[] = {
- "AddressRangeMemory",
- "AddressRangeReserved",
- "AddressRangeACPI",
- "AddressRangeNVS"
-};
-
-const char *acpi_gbl_rng_decode[] = {
- "InvalidRanges",
- "NonISAOnlyRanges",
- "ISAOnlyRanges",
- "EntireRange"
-};
-
-const char *acpi_gbl_rw_decode[] = {
- "ReadOnly",
- "ReadWrite"
-};
-
-const char *acpi_gbl_shr_decode[] = {
- "Exclusive",
- "Shared"
-};
-
-const char *acpi_gbl_siz_decode[] = {
- "Transfer8",
- "Transfer8_16",
- "Transfer16",
- "InvalidSize"
-};
-
-const char *acpi_gbl_trs_decode[] = {
- "DenseTranslation",
- "SparseTranslation"
-};
-
-const char *acpi_gbl_ttp_decode[] = {
- "TypeStatic",
- "TypeTranslation"
-};
-
-const char *acpi_gbl_typ_decode[] = {
- "Compatibility",
- "TypeA",
- "TypeB",
- "TypeF"
-};
-
-#endif
-
-/*
- * Base sizes of the raw AML resource descriptors, indexed by resource type.
- * Zero indicates a reserved (and therefore invalid) resource type.
- */
-const u8 acpi_gbl_resource_aml_sizes[] = {
- /* Small descriptors */
-
- 0,
- 0,
- 0,
- 0,
- ACPI_AML_SIZE_SMALL(struct aml_resource_irq),
- ACPI_AML_SIZE_SMALL(struct aml_resource_dma),
- ACPI_AML_SIZE_SMALL(struct aml_resource_start_dependent),
- ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent),
- ACPI_AML_SIZE_SMALL(struct aml_resource_io),
- ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io),
- 0,
- 0,
- 0,
- 0,
- ACPI_AML_SIZE_SMALL(struct aml_resource_vendor_small),
- ACPI_AML_SIZE_SMALL(struct aml_resource_end_tag),
-
- /* Large descriptors */
-
- 0,
- ACPI_AML_SIZE_LARGE(struct aml_resource_memory24),
- ACPI_AML_SIZE_LARGE(struct aml_resource_generic_register),
- 0,
- ACPI_AML_SIZE_LARGE(struct aml_resource_vendor_large),
- ACPI_AML_SIZE_LARGE(struct aml_resource_memory32),
- ACPI_AML_SIZE_LARGE(struct aml_resource_fixed_memory32),
- ACPI_AML_SIZE_LARGE(struct aml_resource_address32),
- ACPI_AML_SIZE_LARGE(struct aml_resource_address16),
- ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq),
- ACPI_AML_SIZE_LARGE(struct aml_resource_address64),
- ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64)
-};
-
-/*
- * Resource types, used to validate the resource length field.
- * The length of fixed-length types must match exactly, variable
- * lengths must meet the minimum required length, etc.
- * Zero indicates a reserved (and therefore invalid) resource type.
- */
-static const u8 acpi_gbl_resource_types[] = {
- /* Small descriptors */
-
- 0,
- 0,
- 0,
- 0,
- ACPI_SMALL_VARIABLE_LENGTH,
- ACPI_FIXED_LENGTH,
- ACPI_SMALL_VARIABLE_LENGTH,
- ACPI_FIXED_LENGTH,
- ACPI_FIXED_LENGTH,
- ACPI_FIXED_LENGTH,
- 0,
- 0,
- 0,
- 0,
- ACPI_VARIABLE_LENGTH,
- ACPI_FIXED_LENGTH,
-
- /* Large descriptors */
-
- 0,
- ACPI_FIXED_LENGTH,
- ACPI_FIXED_LENGTH,
- 0,
- ACPI_VARIABLE_LENGTH,
- ACPI_FIXED_LENGTH,
- ACPI_FIXED_LENGTH,
- ACPI_VARIABLE_LENGTH,
- ACPI_VARIABLE_LENGTH,
- ACPI_VARIABLE_LENGTH,
- ACPI_VARIABLE_LENGTH,
- ACPI_FIXED_LENGTH
-};
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_walk_aml_resources
- *
- * PARAMETERS: Aml - Pointer to the raw AML resource template
- * aml_length - Length of the entire template
- * user_function - Called once for each descriptor found. If
- * NULL, a pointer to the end_tag is returned
- * Context - Passed to user_function
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk a raw AML resource list(buffer). User function called
- * once for each resource found.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_walk_aml_resources(u8 * aml,
- acpi_size aml_length,
- acpi_walk_aml_callback user_function, void **context)
-{
- acpi_status status;
- u8 *end_aml;
- u8 resource_index;
- u32 length;
- u32 offset = 0;
-
- ACPI_FUNCTION_TRACE(ut_walk_aml_resources);
-
- /* The absolute minimum resource template is one end_tag descriptor */
-
- if (aml_length < sizeof(struct aml_resource_end_tag)) {
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
- }
-
- /* Point to the end of the resource template buffer */
-
- end_aml = aml + aml_length;
-
- /* Walk the byte list, abort on any invalid descriptor type or length */
-
- while (aml < end_aml) {
-
- /* Validate the Resource Type and Resource Length */
-
- status = acpi_ut_validate_resource(aml, &resource_index);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Get the length of this descriptor */
-
- length = acpi_ut_get_descriptor_length(aml);
-
- /* Invoke the user function */
-
- if (user_function) {
- status =
- user_function(aml, length, offset, resource_index,
- context);
- if (ACPI_FAILURE(status)) {
- return (status);
- }
- }
-
- /* An end_tag descriptor terminates this resource template */
-
- if (acpi_ut_get_resource_type(aml) ==
- ACPI_RESOURCE_NAME_END_TAG) {
- /*
- * There must be at least one more byte in the buffer for
- * the 2nd byte of the end_tag
- */
- if ((aml + 1) >= end_aml) {
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
- }
-
- /* Return the pointer to the end_tag if requested */
-
- if (!user_function) {
- *context = aml;
- }
-
- /* Normal exit */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- aml += length;
- offset += length;
- }
-
- /* Did not find an end_tag descriptor */
-
- return (AE_AML_NO_RESOURCE_END_TAG);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_validate_resource
- *
- * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
- * return_index - Where the resource index is returned. NULL
- * if the index is not required.
- *
- * RETURN: Status, and optionally the Index into the global resource tables
- *
- * DESCRIPTION: Validate an AML resource descriptor by checking the Resource
- * Type and Resource Length. Returns an index into the global
- * resource information/dispatch tables for later use.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
-{
- u8 resource_type;
- u8 resource_index;
- acpi_rs_length resource_length;
- acpi_rs_length minimum_resource_length;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * 1) Validate the resource_type field (Byte 0)
- */
- resource_type = ACPI_GET8(aml);
-
- /*
- * Byte 0 contains the descriptor name (Resource Type)
- * Examine the large/small bit in the resource header
- */
- if (resource_type & ACPI_RESOURCE_NAME_LARGE) {
-
- /* Verify the large resource type (name) against the max */
-
- if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) {
- return (AE_AML_INVALID_RESOURCE_TYPE);
- }
-
- /*
- * Large Resource Type -- bits 6:0 contain the name
- * Translate range 0x80-0x8B to index range 0x10-0x1B
- */
- resource_index = (u8) (resource_type - 0x70);
- } else {
- /*
- * Small Resource Type -- bits 6:3 contain the name
- * Shift range to index range 0x00-0x0F
- */
- resource_index = (u8)
- ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3);
- }
-
- /* Check validity of the resource type, zero indicates name is invalid */
-
- if (!acpi_gbl_resource_types[resource_index]) {
- return (AE_AML_INVALID_RESOURCE_TYPE);
- }
-
- /*
- * 2) Validate the resource_length field. This ensures that the length
- * is at least reasonable, and guarantees that it is non-zero.
- */
- resource_length = acpi_ut_get_resource_length(aml);
- minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index];
-
- /* Validate based upon the type of resource - fixed length or variable */
-
- switch (acpi_gbl_resource_types[resource_index]) {
- case ACPI_FIXED_LENGTH:
-
- /* Fixed length resource, length must match exactly */
-
- if (resource_length != minimum_resource_length) {
- return (AE_AML_BAD_RESOURCE_LENGTH);
- }
- break;
-
- case ACPI_VARIABLE_LENGTH:
-
- /* Variable length resource, length must be at least the minimum */
-
- if (resource_length < minimum_resource_length) {
- return (AE_AML_BAD_RESOURCE_LENGTH);
- }
- break;
-
- case ACPI_SMALL_VARIABLE_LENGTH:
-
- /* Small variable length resource, length can be (Min) or (Min-1) */
-
- if ((resource_length > minimum_resource_length) ||
- (resource_length < (minimum_resource_length - 1))) {
- return (AE_AML_BAD_RESOURCE_LENGTH);
- }
- break;
-
- default:
-
- /* Shouldn't happen (because of validation earlier), but be sure */
-
- return (AE_AML_INVALID_RESOURCE_TYPE);
- }
-
- /* Optionally return the resource table index */
-
- if (return_index) {
- *return_index = resource_index;
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_resource_type
- *
- * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
- *
- * RETURN: The Resource Type with no extraneous bits (except the
- * Large/Small descriptor bit -- this is left alone)
- *
- * DESCRIPTION: Extract the Resource Type/Name from the first byte of
- * a resource descriptor.
- *
- ******************************************************************************/
-
-u8 acpi_ut_get_resource_type(void *aml)
-{
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Byte 0 contains the descriptor name (Resource Type)
- * Examine the large/small bit in the resource header
- */
- if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
-
- /* Large Resource Type -- bits 6:0 contain the name */
-
- return (ACPI_GET8(aml));
- } else {
- /* Small Resource Type -- bits 6:3 contain the name */
-
- return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_resource_length
- *
- * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
- *
- * RETURN: Byte Length
- *
- * DESCRIPTION: Get the "Resource Length" of a raw AML descriptor. By
- * definition, this does not include the size of the descriptor
- * header or the length field itself.
- *
- ******************************************************************************/
-
-u16 acpi_ut_get_resource_length(void *aml)
-{
- acpi_rs_length resource_length;
-
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Byte 0 contains the descriptor name (Resource Type)
- * Examine the large/small bit in the resource header
- */
- if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
-
- /* Large Resource type -- bytes 1-2 contain the 16-bit length */
-
- ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1));
-
- } else {
- /* Small Resource type -- bits 2:0 of byte 0 contain the length */
-
- resource_length = (u16) (ACPI_GET8(aml) &
- ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK);
- }
-
- return (resource_length);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_resource_header_length
- *
- * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
- *
- * RETURN: Length of the AML header (depends on large/small descriptor)
- *
- * DESCRIPTION: Get the length of the header for this resource.
- *
- ******************************************************************************/
-
-u8 acpi_ut_get_resource_header_length(void *aml)
-{
- ACPI_FUNCTION_ENTRY();
-
- /* Examine the large/small bit in the resource header */
-
- if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) {
- return (sizeof(struct aml_resource_large_header));
- } else {
- return (sizeof(struct aml_resource_small_header));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_descriptor_length
- *
- * PARAMETERS: Aml - Pointer to the raw AML resource descriptor
- *
- * RETURN: Byte length
- *
- * DESCRIPTION: Get the total byte length of a raw AML descriptor, including the
- * length of the descriptor header and the length field itself.
- * Used to walk descriptor lists.
- *
- ******************************************************************************/
-
-u32 acpi_ut_get_descriptor_length(void *aml)
-{
- ACPI_FUNCTION_ENTRY();
-
- /*
- * Get the Resource Length (does not include header length) and add
- * the header length (depends on if this is a small or large resource)
- */
- return (acpi_ut_get_resource_length(aml) +
- acpi_ut_get_resource_header_length(aml));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_get_resource_end_tag
- *
- * PARAMETERS: obj_desc - The resource template buffer object
- * end_tag - Where the pointer to the end_tag is returned
- *
- * RETURN: Status, pointer to the end tag
- *
- * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template
- * Note: allows a buffer length of zero.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc,
- u8 ** end_tag)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(ut_get_resource_end_tag);
-
- /* Allow a buffer length of zero */
-
- if (!obj_desc->buffer.length) {
- *end_tag = obj_desc->buffer.pointer;
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Validate the template and get a pointer to the end_tag */
-
- status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer,
- obj_desc->buffer.length, NULL,
- (void **)end_tag);
-
- return_ACPI_STATUS(status);
-}
+++ /dev/null
-/*******************************************************************************
- *
- * Module Name: utstate - state object support procedures
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utstate")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_pkg_state_and_push
- *
- * PARAMETERS: Object - Object to be added to the new state
- * Action - Increment/Decrement
- * state_list - List the state will be added to
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a new state and push it
- *
- ******************************************************************************/
-acpi_status
-acpi_ut_create_pkg_state_and_push(void *internal_object,
- void *external_object,
- u16 index,
- union acpi_generic_state **state_list)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_ENTRY();
-
- state =
- acpi_ut_create_pkg_state(internal_object, external_object, index);
- if (!state) {
- return (AE_NO_MEMORY);
- }
-
- acpi_ut_push_generic_state(state_list, state);
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_push_generic_state
- *
- * PARAMETERS: list_head - Head of the state stack
- * State - State object to push
- *
- * RETURN: None
- *
- * DESCRIPTION: Push a state object onto a state stack
- *
- ******************************************************************************/
-
-void
-acpi_ut_push_generic_state(union acpi_generic_state **list_head,
- union acpi_generic_state *state)
-{
- ACPI_FUNCTION_TRACE(ut_push_generic_state);
-
- /* Push the state object onto the front of the list (stack) */
-
- state->common.next = *list_head;
- *list_head = state;
-
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_pop_generic_state
- *
- * PARAMETERS: list_head - Head of the state stack
- *
- * RETURN: The popped state object
- *
- * DESCRIPTION: Pop a state object from a state stack
- *
- ******************************************************************************/
-
-union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state
- **list_head)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_TRACE(ut_pop_generic_state);
-
- /* Remove the state object at the head of the list (stack) */
-
- state = *list_head;
- if (state) {
-
- /* Update the list head */
-
- *list_head = state->common.next;
- }
-
- return_PTR(state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_generic_state
- *
- * PARAMETERS: None
- *
- * RETURN: The new state object. NULL on failure.
- *
- * DESCRIPTION: Create a generic state object. Attempt to obtain one from
- * the global state cache; If none available, create a new one.
- *
- ******************************************************************************/
-
-union acpi_generic_state *acpi_ut_create_generic_state(void)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_ENTRY();
-
- state = acpi_os_acquire_object(acpi_gbl_state_cache);
- if (state) {
-
- /* Initialize */
- memset(state, 0, sizeof(union acpi_generic_state));
- state->common.descriptor_type = ACPI_DESC_TYPE_STATE;
- }
-
- return (state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_thread_state
- *
- * PARAMETERS: None
- *
- * RETURN: New Thread State. NULL on failure
- *
- * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used
- * to track per-thread info during method execution
- *
- ******************************************************************************/
-
-struct acpi_thread_state *acpi_ut_create_thread_state(void)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_TRACE(ut_create_thread_state);
-
- /* Create the generic state object */
-
- state = acpi_ut_create_generic_state();
- if (!state) {
- return_PTR(NULL);
- }
-
- /* Init fields specific to the update struct */
-
- state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD;
- state->thread.thread_id = acpi_os_get_thread_id();
-
- /* Check for invalid thread ID - zero is very bad, it will break things */
-
- if (!state->thread.thread_id) {
- ACPI_ERROR((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId"));
- state->thread.thread_id = (acpi_thread_id) 1;
- }
-
- return_PTR((struct acpi_thread_state *)state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_update_state
- *
- * PARAMETERS: Object - Initial Object to be installed in the state
- * Action - Update action to be performed
- *
- * RETURN: New state object, null on failure
- *
- * DESCRIPTION: Create an "Update State" - a flavor of the generic state used
- * to update reference counts and delete complex objects such
- * as packages.
- *
- ******************************************************************************/
-
-union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object
- *object, u16 action)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object);
-
- /* Create the generic state object */
-
- state = acpi_ut_create_generic_state();
- if (!state) {
- return_PTR(NULL);
- }
-
- /* Init fields specific to the update struct */
-
- state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE;
- state->update.object = object;
- state->update.value = action;
-
- return_PTR(state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_pkg_state
- *
- * PARAMETERS: Object - Initial Object to be installed in the state
- * Action - Update action to be performed
- *
- * RETURN: New state object, null on failure
- *
- * DESCRIPTION: Create a "Package State"
- *
- ******************************************************************************/
-
-union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object,
- void *external_object,
- u16 index)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object);
-
- /* Create the generic state object */
-
- state = acpi_ut_create_generic_state();
- if (!state) {
- return_PTR(NULL);
- }
-
- /* Init fields specific to the update struct */
-
- state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE;
- state->pkg.source_object = (union acpi_operand_object *)internal_object;
- state->pkg.dest_object = external_object;
- state->pkg.index = index;
- state->pkg.num_packages = 1;
-
- return_PTR(state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_control_state
- *
- * PARAMETERS: None
- *
- * RETURN: New state object, null on failure
- *
- * DESCRIPTION: Create a "Control State" - a flavor of the generic state used
- * to support nested IF/WHILE constructs in the AML.
- *
- ******************************************************************************/
-
-union acpi_generic_state *acpi_ut_create_control_state(void)
-{
- union acpi_generic_state *state;
-
- ACPI_FUNCTION_TRACE(ut_create_control_state);
-
- /* Create the generic state object */
-
- state = acpi_ut_create_generic_state();
- if (!state) {
- return_PTR(NULL);
- }
-
- /* Init fields specific to the control struct */
-
- state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL;
- state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
-
- return_PTR(state);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_generic_state
- *
- * PARAMETERS: State - The state object to be deleted
- *
- * RETURN: None
- *
- * DESCRIPTION: Release a state object to the state cache. NULL state objects
- * are ignored.
- *
- ******************************************************************************/
-
-void acpi_ut_delete_generic_state(union acpi_generic_state *state)
-{
- ACPI_FUNCTION_TRACE(ut_delete_generic_state);
-
- /* Ignore null state */
-
- if (state) {
- (void)acpi_os_release_object(acpi_gbl_state_cache, state);
- }
- return_VOID;
-}
+++ /dev/null
-/******************************************************************************
- *
- * Module Name: utxface - External interfaces for "global" ACPI functions
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acevents.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acdebug.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utxface")
-
-#ifndef ACPI_ASL_COMPILER
-/*******************************************************************************
- *
- * FUNCTION: acpi_initialize_subsystem
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Initializes all global variables. This is the first function
- * called, so any early initialization belongs here.
- *
- ******************************************************************************/
-acpi_status __init acpi_initialize_subsystem(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_initialize_subsystem);
-
- acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE;
- ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace());
-
- /* Initialize the OS-Dependent layer */
-
- status = acpi_os_initialize();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization"));
- return_ACPI_STATUS(status);
- }
-
- /* Initialize all globals used by the subsystem */
-
- status = acpi_ut_init_globals();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "During initialization of globals"));
- return_ACPI_STATUS(status);
- }
-
- /* Create the default mutex objects */
-
- status = acpi_ut_mutex_initialize();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "During Global Mutex creation"));
- return_ACPI_STATUS(status);
- }
-
- /*
- * Initialize the namespace manager and
- * the root of the namespace tree
- */
- status = acpi_ns_root_initialize();
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "During Namespace initialization"));
- return_ACPI_STATUS(status);
- }
-
- /* If configured, initialize the AML debugger */
-
- ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_enable_subsystem
- *
- * PARAMETERS: Flags - Init/enable Options
- *
- * RETURN: Status
- *
- * DESCRIPTION: Completes the subsystem initialization including hardware.
- * Puts system into ACPI mode if it isn't already.
- *
- ******************************************************************************/
-acpi_status acpi_enable_subsystem(u32 flags)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
-
- /* Enable ACPI mode */
-
- if (!(flags & ACPI_NO_ACPI_ENABLE)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Going into ACPI mode\n"));
-
- acpi_gbl_original_mode = acpi_hw_get_mode();
-
- status = acpi_enable();
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "AcpiEnable failed"));
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Obtain a permanent mapping for the FACS. This is required for the
- * Global Lock and the Firmware Waking Vector
- */
- status = acpi_tb_initialize_facs();
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
- return_ACPI_STATUS(status);
- }
-
- /*
- * Install the default op_region handlers. These are installed unless
- * other handlers have already been installed via the
- * install_address_space_handler interface.
- */
- if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Installing default address space handlers\n"));
-
- status = acpi_ev_install_region_handlers();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Initialize ACPI Event handling (Fixed and General Purpose)
- *
- * Note1: We must have the hardware and events initialized before we can
- * execute any control methods safely. Any control method can require
- * ACPI hardware support, so the hardware must be fully initialized before
- * any method execution!
- *
- * Note2: Fixed events are initialized and enabled here. GPEs are
- * initialized, but cannot be enabled until after the hardware is
- * completely initialized (SCI and global_lock activated)
- */
- if (!(flags & ACPI_NO_EVENT_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Initializing ACPI events\n"));
-
- status = acpi_ev_initialize_events();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Install the SCI handler and Global Lock handler. This completes the
- * hardware initialization.
- */
- if (!(flags & ACPI_NO_HANDLER_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Installing SCI/GL handlers\n"));
-
- status = acpi_ev_install_xrupt_handlers();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enable_subsystem)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_initialize_objects
- *
- * PARAMETERS: Flags - Init/enable Options
- *
- * RETURN: Status
- *
- * DESCRIPTION: Completes namespace initialization by initializing device
- * objects and executing AML code for Regions, buffers, etc.
- *
- ******************************************************************************/
-acpi_status acpi_initialize_objects(u32 flags)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_initialize_objects);
-
- /*
- * Run all _REG methods
- *
- * Note: Any objects accessed by the _REG methods will be automatically
- * initialized, even if they contain executable AML (see the call to
- * acpi_ns_initialize_objects below).
- */
- if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Executing _REG OpRegion methods\n"));
-
- status = acpi_ev_initialize_op_regions();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Initialize the objects that remain uninitialized. This runs the
- * executable AML that may be part of the declaration of these objects:
- * operation_regions, buffer_fields, Buffers, and Packages.
- */
- if (!(flags & ACPI_NO_OBJECT_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Completing Initialization of ACPI Objects\n"));
-
- status = acpi_ns_initialize_objects();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Initialize all device objects in the namespace. This runs the device
- * _STA and _INI methods.
- */
- if (!(flags & ACPI_NO_DEVICE_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Initializing ACPI Devices\n"));
-
- status = acpi_ns_initialize_devices();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- /*
- * Complete the GPE initialization for the GPE blocks defined in the FADT
- * (GPE block 0 and 1).
- *
- * Note1: This is where the _PRW methods are executed for the GPEs. These
- * methods can only be executed after the SCI and Global Lock handlers are
- * installed and initialized.
- *
- * Note2: Currently, there seems to be no need to run the _REG methods
- * before execution of the _PRW methods and enabling of the GPEs.
- */
- if (!(flags & ACPI_NO_EVENT_INIT)) {
- status = acpi_ev_install_fadt_gpes();
- if (ACPI_FAILURE(status))
- return (status);
- }
-
- /*
- * Empty the caches (delete the cached objects) on the assumption that
- * the table load filled them up more than they will be at runtime --
- * thus wasting non-paged memory.
- */
- status = acpi_purge_cached_objects();
-
- acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_initialize_objects)
-
-#endif
-/*******************************************************************************
- *
- * FUNCTION: acpi_terminate
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources.
- *
- ******************************************************************************/
-acpi_status acpi_terminate(void)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_terminate);
-
- /* Terminate the AML Debugger if present */
-
- ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE);
-
- /* Shutdown and free all resources */
-
- acpi_ut_subsystem_shutdown();
-
- /* Free the mutex objects */
-
- acpi_ut_mutex_terminate();
-
-#ifdef ACPI_DEBUGGER
-
- /* Shut down the debugger */
-
- acpi_db_terminate();
-#endif
-
- /* Now we can shutdown the OS-dependent layer */
-
- status = acpi_os_terminate();
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_terminate)
-#ifndef ACPI_ASL_COMPILER
-#ifdef ACPI_FUTURE_USAGE
-/*******************************************************************************
- *
- * FUNCTION: acpi_subsystem_status
- *
- * PARAMETERS: None
- *
- * RETURN: Status of the ACPI subsystem
- *
- * DESCRIPTION: Other drivers that use the ACPI subsystem should call this
- * before making any other calls, to ensure the subsystem
- * initialized successfully.
- *
- ******************************************************************************/
-acpi_status acpi_subsystem_status(void)
-{
-
- if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) {
- return (AE_OK);
- } else {
- return (AE_ERROR);
- }
-}
-
-ACPI_EXPORT_SYMBOL(acpi_subsystem_status)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_get_system_info
- *
- * PARAMETERS: out_buffer - A buffer to receive the resources for the
- * device
- *
- * RETURN: Status - the status of the call
- *
- * DESCRIPTION: This function is called to get information about the current
- * state of the ACPI subsystem. It will return system information
- * in the out_buffer.
- *
- * If the function fails an appropriate status will be returned
- * and the value of out_buffer is undefined.
- *
- ******************************************************************************/
-acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
-{
- struct acpi_system_info *info_ptr;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_get_system_info);
-
- /* Parameter validation */
-
- status = acpi_ut_validate_buffer(out_buffer);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Validate/Allocate/Clear caller buffer */
-
- status =
- acpi_ut_initialize_buffer(out_buffer,
- sizeof(struct acpi_system_info));
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Populate the return buffer
- */
- info_ptr = (struct acpi_system_info *)out_buffer->pointer;
-
- info_ptr->acpi_ca_version = ACPI_CA_VERSION;
-
- /* System flags (ACPI capabilities) */
-
- info_ptr->flags = ACPI_SYS_MODE_ACPI;
-
- /* Timer resolution - 24 or 32 bits */
-
- if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) {
- info_ptr->timer_resolution = 24;
- } else {
- info_ptr->timer_resolution = 32;
- }
-
- /* Clear the reserved fields */
-
- info_ptr->reserved1 = 0;
- info_ptr->reserved2 = 0;
-
- /* Current debug levels */
-
- info_ptr->debug_layer = acpi_dbg_layer;
- info_ptr->debug_level = acpi_dbg_level;
-
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_get_system_info)
-
-/*****************************************************************************
- *
- * FUNCTION: acpi_install_initialization_handler
- *
- * PARAMETERS: Handler - Callback procedure
- * Function - Not (currently) used, see below
- *
- * RETURN: Status
- *
- * DESCRIPTION: Install an initialization handler
- *
- * TBD: When a second function is added, must save the Function also.
- *
- ****************************************************************************/
-acpi_status
-acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
-{
-
- if (!handler) {
- return (AE_BAD_PARAMETER);
- }
-
- if (acpi_gbl_init_handler) {
- return (AE_ALREADY_EXISTS);
- }
-
- acpi_gbl_init_handler = handler;
- return AE_OK;
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
-#endif /* ACPI_FUTURE_USAGE */
-/*****************************************************************************
- *
- * FUNCTION: acpi_purge_cached_objects
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Empty all caches (delete the cached objects)
- *
- ****************************************************************************/
-acpi_status acpi_purge_cached_objects(void)
-{
- ACPI_FUNCTION_TRACE(acpi_purge_cached_objects);
-
- (void)acpi_os_purge_cache(acpi_gbl_state_cache);
- (void)acpi_os_purge_cache(acpi_gbl_operand_cache);
- (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache);
- (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache);
- return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
-#endif
--- /dev/null
+/*
+ * wakeup.c - support wakeup devices
+ * Copyright (C) 2004 Li Shaohua <shaohua.li@intel.com>
+ */
+
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <acpi/acpi_drivers.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include "sleep.h"
+
+#define _COMPONENT ACPI_SYSTEM_COMPONENT
+ACPI_MODULE_NAME("wakeup_devices")
+
+extern struct list_head acpi_wakeup_device_list;
+extern spinlock_t acpi_device_lock;
+
+/**
+ * acpi_enable_wakeup_device_prep - prepare wakeup devices
+ * @sleep_state: ACPI state
+ * Enable all wakup devices power if the devices' wakeup level
+ * is higher than requested sleep level
+ */
+
+void acpi_enable_wakeup_device_prep(u8 sleep_state)
+{
+ struct list_head *node, *next;
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev = container_of(node,
+ struct acpi_device,
+ wakeup_list);
+
+ if (!dev->wakeup.flags.valid ||
+ !dev->wakeup.state.enabled ||
+ (sleep_state > (u32) dev->wakeup.sleep_state))
+ continue;
+
+ spin_unlock(&acpi_device_lock);
+ acpi_enable_wakeup_device_power(dev, sleep_state);
+ spin_lock(&acpi_device_lock);
+ }
+ spin_unlock(&acpi_device_lock);
+}
+
+/**
+ * acpi_enable_wakeup_device - enable wakeup devices
+ * @sleep_state: ACPI state
+ * Enable all wakup devices's GPE
+ */
+void acpi_enable_wakeup_device(u8 sleep_state)
+{
+ struct list_head *node, *next;
+
+ /*
+ * Caution: this routine must be invoked when interrupt is disabled
+ * Refer ACPI2.0: P212
+ */
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
+
+ if (!dev->wakeup.flags.valid)
+ continue;
+
+ /* If users want to disable run-wake GPE,
+ * we only disable it for wake and leave it for runtime
+ */
+ if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
+ || sleep_state > (u32) dev->wakeup.sleep_state) {
+ if (dev->wakeup.flags.run_wake) {
+ spin_unlock(&acpi_device_lock);
+ /* set_gpe_type will disable GPE, leave it like that */
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_RUNTIME);
+ spin_lock(&acpi_device_lock);
+ }
+ continue;
+ }
+ spin_unlock(&acpi_device_lock);
+ if (!dev->wakeup.flags.run_wake)
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number);
+ spin_lock(&acpi_device_lock);
+ }
+ spin_unlock(&acpi_device_lock);
+}
+
+/**
+ * acpi_disable_wakeup_device - disable devices' wakeup capability
+ * @sleep_state: ACPI state
+ * Disable all wakup devices's GPE and wakeup capability
+ */
+void acpi_disable_wakeup_device(u8 sleep_state)
+{
+ struct list_head *node, *next;
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev =
+ container_of(node, struct acpi_device, wakeup_list);
+
+ if (!dev->wakeup.flags.valid)
+ continue;
+
+ if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
+ || sleep_state > (u32) dev->wakeup.sleep_state) {
+ if (dev->wakeup.flags.run_wake) {
+ spin_unlock(&acpi_device_lock);
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ /* Re-enable it, since set_gpe_type will disable it */
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number);
+ spin_lock(&acpi_device_lock);
+ }
+ continue;
+ }
+
+ spin_unlock(&acpi_device_lock);
+ acpi_disable_wakeup_device_power(dev);
+ /* Never disable run-wake GPE */
+ if (!dev->wakeup.flags.run_wake) {
+ acpi_disable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number);
+ acpi_clear_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number, ACPI_NOT_ISR);
+ }
+ spin_lock(&acpi_device_lock);
+ }
+ spin_unlock(&acpi_device_lock);
+}
+
+static int __init acpi_wakeup_device_init(void)
+{
+ struct list_head *node, *next;
+
+ if (acpi_disabled)
+ return 0;
+
+ spin_lock(&acpi_device_lock);
+ list_for_each_safe(node, next, &acpi_wakeup_device_list) {
+ struct acpi_device *dev = container_of(node,
+ struct acpi_device,
+ wakeup_list);
+ /* In case user doesn't load button driver */
+ if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled)
+ continue;
+ spin_unlock(&acpi_device_lock);
+ acpi_set_gpe_type(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE_RUN);
+ acpi_enable_gpe(dev->wakeup.gpe_device,
+ dev->wakeup.gpe_number);
+ dev->wakeup.state.enabled = 1;
+ spin_lock(&acpi_device_lock);
+ }
+ spin_unlock(&acpi_device_lock);
+ return 0;
+}
+
+late_initcall(acpi_wakeup_device_init);
projects / linux-2.6-microblaze.git / commitdiff