drivers/acpi/acpica/acnamesp.h

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Name: acnamesp.h - Namespace subcomponent prototypes and defines
   5  *
   6  * Copyright (C) 2000 - 2019, Intel Corp.
   7  *
   8  *****************************************************************************/
   9
  10 #ifndef __ACNAMESP_H__
  11 #define __ACNAMESP_H__
  12
  13 /* To search the entire name space, pass this as search_base */
  14
  15 #define ACPI_NS_ALL                 ((acpi_handle)0)
  16
  17 /*
  18  * Elements of acpi_ns_properties are bit significant
  19  * and should be one-to-one with values of acpi_object_type
  20  */
  21 #define ACPI_NS_NORMAL              0
  22 #define ACPI_NS_NEWSCOPE            1   /* a definition of this type opens a name scope */
  23 #define ACPI_NS_LOCAL               2   /* suppress search of enclosing scopes */
  24
  25 /* Flags for acpi_ns_lookup, acpi_ns_search_and_enter */
  26
  27 #define ACPI_NS_NO_UPSEARCH         0
  28 #define ACPI_NS_SEARCH_PARENT       0x0001
  29 #define ACPI_NS_DONT_OPEN_SCOPE     0x0002
  30 #define ACPI_NS_NO_PEER_SEARCH      0x0004
  31 #define ACPI_NS_ERROR_IF_FOUND      0x0008
  32 #define ACPI_NS_PREFIX_IS_SCOPE     0x0010
  33 #define ACPI_NS_EXTERNAL            0x0020
  34 #define ACPI_NS_TEMPORARY           0x0040
  35 #define ACPI_NS_OVERRIDE_IF_FOUND   0x0080
  36 #define ACPI_NS_EARLY_INIT          0x0100
  37 #define ACPI_NS_PREFIX_MUST_EXIST   0x0200
  38
  39 /* Flags for acpi_ns_walk_namespace */
  40
  41 #define ACPI_NS_WALK_NO_UNLOCK      0
  42 #define ACPI_NS_WALK_UNLOCK         0x01
  43 #define ACPI_NS_WALK_TEMP_NODES     0x02
  44
  45 /* Object is not a package element */
  46
  47 #define ACPI_NOT_PACKAGE_ELEMENT    ACPI_UINT32_MAX
  48 #define ACPI_ALL_PACKAGE_ELEMENTS   (ACPI_UINT32_MAX-1)
  49
  50 /* Always emit warning message, not dependent on node flags */
  51
  52 #define ACPI_WARN_ALWAYS            0
  53
  54 /*
  55  * nsinit - Namespace initialization
  56  */
  57 acpi_status acpi_ns_initialize_objects(void);
  58
  59 acpi_status acpi_ns_initialize_devices(u32 flags);
  60
  61 acpi_status
  62 acpi_ns_init_one_package(acpi_handle obj_handle,
  63                          u32 level, void *context, void **return_value);
  64
  65 /*
  66  * nsload -  Namespace loading
  67  */
  68 acpi_status acpi_ns_load_namespace(void);
  69
  70 acpi_status
  71 acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node);
  72
  73 /*
  74  * nswalk - walk the namespace
  75  */
  76 acpi_status
  77 acpi_ns_walk_namespace(acpi_object_type type,
  78                        acpi_handle start_object,
  79                        u32 max_depth,
  80                        u32 flags,
  81                        acpi_walk_callback descending_callback,
  82                        acpi_walk_callback ascending_callback,
  83                        void *context, void **return_value);
  84
  85 struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
  86                                                   *parent,
  87                                                   struct acpi_namespace_node
  88                                                   *child);
  89
  90 struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
  91                                                         struct
  92                                                         acpi_namespace_node
  93                                                         *parent,
  94                                                         struct
  95                                                         acpi_namespace_node
  96                                                         *child);
  97
  98 /*
  99  * nsparse - table parsing
 100  */
 101 acpi_status
 102 acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node);
 103
 104 acpi_status
 105 acpi_ns_execute_table(u32 table_index, struct acpi_namespace_node *start_node);
 106
 107 acpi_status
 108 acpi_ns_one_complete_parse(u32 pass_number,
 109                            u32 table_index,
 110                            struct acpi_namespace_node *start_node);
 111
 112 /*
 113  * nsaccess - Top-level namespace access
 114  */
 115 acpi_status acpi_ns_root_initialize(void);
 116
 117 acpi_status
 118 acpi_ns_lookup(union acpi_generic_state *scope_info,
 119                char *name,
 120                acpi_object_type type,
 121                acpi_interpreter_mode interpreter_mode,
 122                u32 flags,
 123                struct acpi_walk_state *walk_state,
 124                struct acpi_namespace_node **ret_node);
 125
 126 /*
 127  * nsalloc - Named object allocation/deallocation
 128  */
 129 struct acpi_namespace_node *acpi_ns_create_node(u32 name);
 130
 131 void acpi_ns_delete_node(struct acpi_namespace_node *node);
 132
 133 void acpi_ns_remove_node(struct acpi_namespace_node *node);
 134
 135 void
 136 acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle);
 137
 138 void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id);
 139
 140 void acpi_ns_detach_object(struct acpi_namespace_node *node);
 141
 142 void acpi_ns_delete_children(struct acpi_namespace_node *parent);
 143
 144 int acpi_ns_compare_names(char *name1, char *name2);
 145
 146 /*
 147  * nsconvert - Dynamic object conversion routines
 148  */
 149 acpi_status
 150 acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 151                            union acpi_operand_object **return_object);
 152
 153 acpi_status
 154 acpi_ns_convert_to_string(union acpi_operand_object *original_object,
 155                           union acpi_operand_object **return_object);
 156
 157 acpi_status
 158 acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 159                           union acpi_operand_object **return_object);
 160
 161 acpi_status
 162 acpi_ns_convert_to_unicode(struct acpi_namespace_node *scope,
 163                            union acpi_operand_object *original_object,
 164                            union acpi_operand_object **return_object);
 165
 166 acpi_status
 167 acpi_ns_convert_to_resource(struct acpi_namespace_node *scope,
 168                             union acpi_operand_object *original_object,
 169                             union acpi_operand_object **return_object);
 170
 171 acpi_status
 172 acpi_ns_convert_to_reference(struct acpi_namespace_node *scope,
 173                              union acpi_operand_object *original_object,
 174                              union acpi_operand_object **return_object);
 175
 176 /*
 177  * nsdump - Namespace dump/print utilities
 178  */
 179 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth);
 180
 181 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level);
 182
 183 void
 184 acpi_ns_dump_pathname(acpi_handle handle,
 185                       const char *msg, u32 level, u32 component);
 186
 187 void acpi_ns_print_pathname(u32 num_segments, const char *pathname);
 188
 189 acpi_status
 190 acpi_ns_dump_one_object(acpi_handle obj_handle,
 191                         u32 level, void *context, void **return_value);
 192
 193 void
 194 acpi_ns_dump_objects(acpi_object_type type,
 195                      u8 display_type,
 196                      u32 max_depth,
 197                      acpi_owner_id owner_id, acpi_handle start_handle);
 198
 199 void
 200 acpi_ns_dump_object_paths(acpi_object_type type,
 201                           u8 display_type,
 202                           u32 max_depth,
 203                           acpi_owner_id owner_id, acpi_handle start_handle);
 204
 205 /*
 206  * nseval - Namespace evaluation functions
 207  */
 208 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 209
 210 /*
 211  * nsarguments - Argument count/type checking for predefined/reserved names
 212  */
 213 void
 214 acpi_ns_check_argument_count(char *pathname,
 215                              struct acpi_namespace_node *node,
 216                              u32 user_param_count,
 217                              const union acpi_predefined_info *info);
 218
 219 void
 220 acpi_ns_check_acpi_compliance(char *pathname,
 221                               struct acpi_namespace_node *node,
 222                               const union acpi_predefined_info *predefined);
 223
 224 void acpi_ns_check_argument_types(struct acpi_evaluate_info *info);
 225
 226 /*
 227  * nspredef - Return value checking for predefined/reserved names
 228  */
 229 acpi_status
 230 acpi_ns_check_return_value(struct acpi_namespace_node *node,
 231                            struct acpi_evaluate_info *info,
 232                            u32 user_param_count,
 233                            acpi_status return_status,
 234                            union acpi_operand_object **return_object);
 235
 236 acpi_status
 237 acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 238                           union acpi_operand_object **return_object_ptr,
 239                           u32 expected_btypes, u32 package_index);
 240
 241 /*
 242  * nsprepkg - Validation of predefined name packages
 243  */
 244 acpi_status
 245 acpi_ns_check_package(struct acpi_evaluate_info *info,
 246                       union acpi_operand_object **return_object_ptr);
 247
 248 /*
 249  * nsnames - Name and Scope manipulation
 250  */
 251 u32 acpi_ns_opens_scope(acpi_object_type type);
 252
 253 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node);
 254
 255 u32
 256 acpi_ns_build_normalized_path(struct acpi_namespace_node *node,
 257                               char *full_path, u32 path_size, u8 no_trailing);
 258
 259 char *acpi_ns_get_normalized_pathname(struct acpi_namespace_node *node,
 260                                       u8 no_trailing);
 261
 262 char *acpi_ns_build_prefixed_pathname(union acpi_generic_state *prefix_scope,
 263                                       const char *internal_path);
 264
 265 char *acpi_ns_name_of_current_scope(struct acpi_walk_state *walk_state);
 266
 267 acpi_status
 268 acpi_ns_handle_to_name(acpi_handle target_handle, struct acpi_buffer *buffer);
 269
 270 acpi_status
 271 acpi_ns_handle_to_pathname(acpi_handle target_handle,
 272                            struct acpi_buffer *buffer, u8 no_trailing);
 273
 274 u8
 275 acpi_ns_pattern_match(struct acpi_namespace_node *obj_node, char *search_for);
 276
 277 acpi_status
 278 acpi_ns_get_node_unlocked(struct acpi_namespace_node *prefix_node,
 279                           const char *external_pathname,
 280                           u32 flags, struct acpi_namespace_node **out_node);
 281
 282 acpi_status
 283 acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 284                  const char *external_pathname,
 285                  u32 flags, struct acpi_namespace_node **out_node);
 286
 287 acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node);
 288
 289 /*
 290  * nsobject - Object management for namespace nodes
 291  */
 292 acpi_status
 293 acpi_ns_attach_object(struct acpi_namespace_node *node,
 294                       union acpi_operand_object *object, acpi_object_type type);
 295
 296 union acpi_operand_object *acpi_ns_get_attached_object(struct
 297                                                        acpi_namespace_node
 298                                                        *node);
 299
 300 union acpi_operand_object *acpi_ns_get_secondary_object(union
 301                                                         acpi_operand_object
 302                                                         *obj_desc);
 303
 304 acpi_status
 305 acpi_ns_attach_data(struct acpi_namespace_node *node,
 306                     acpi_object_handler handler, void *data);
 307
 308 acpi_status
 309 acpi_ns_detach_data(struct acpi_namespace_node *node,
 310                     acpi_object_handler handler);
 311
 312 acpi_status
 313 acpi_ns_get_attached_data(struct acpi_namespace_node *node,
 314                           acpi_object_handler handler, void **data);
 315
 316 /*
 317  * nsrepair - General return object repair for all
 318  * predefined methods/objects
 319  */
 320 acpi_status
 321 acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 322                       u32 expected_btypes,
 323                       u32 package_index,
 324                       union acpi_operand_object **return_object_ptr);
 325
 326 acpi_status
 327 acpi_ns_wrap_with_package(struct acpi_evaluate_info *info,
 328                           union acpi_operand_object *original_object,
 329                           union acpi_operand_object **obj_desc_ptr);
 330
 331 acpi_status
 332 acpi_ns_repair_null_element(struct acpi_evaluate_info *info,
 333                             u32 expected_btypes,
 334                             u32 package_index,
 335                             union acpi_operand_object **return_object_ptr);
 336
 337 void
 338 acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
 339                              u8 package_type,
 340                              union acpi_operand_object *obj_desc);
 341
 342 /*
 343  * nsrepair2 - Return object repair for specific
 344  * predefined methods/objects
 345  */
 346 acpi_status
 347 acpi_ns_complex_repairs(struct acpi_evaluate_info *info,
 348                         struct acpi_namespace_node *node,
 349                         acpi_status validate_status,
 350                         union acpi_operand_object **return_object_ptr);
 351
 352 /*
 353  * nssearch - Namespace searching and entry
 354  */
 355 acpi_status
 356 acpi_ns_search_and_enter(u32 entry_name,
 357                          struct acpi_walk_state *walk_state,
 358                          struct acpi_namespace_node *node,
 359                          acpi_interpreter_mode interpreter_mode,
 360                          acpi_object_type type,
 361                          u32 flags, struct acpi_namespace_node **ret_node);
 362
 363 acpi_status
 364 acpi_ns_search_one_scope(u32 entry_name,
 365                          struct acpi_namespace_node *node,
 366                          acpi_object_type type,
 367                          struct acpi_namespace_node **ret_node);
 368
 369 void
 370 acpi_ns_install_node(struct acpi_walk_state *walk_state,
 371                      struct acpi_namespace_node *parent_node,
 372                      struct acpi_namespace_node *node, acpi_object_type type);
 373
 374 /*
 375  * nsutils - Utility functions
 376  */
 377 acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 378
 379 u32 acpi_ns_local(acpi_object_type type);
 380
 381 void
 382 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 383
 384 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
 385
 386 void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info);
 387
 388 acpi_status
 389 acpi_ns_internalize_name(const char *dotted_name, char **converted_name);
 390
 391 acpi_status
 392 acpi_ns_externalize_name(u32 internal_name_length,
 393                          const char *internal_name,
 394                          u32 * converted_name_length, char **converted_name);
 395
 396 struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
 397
 398 void acpi_ns_terminate(void);
 399
 400 #endif                          /* __ACNAMESP_H__ */