* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*/
+#define pr_fmt(fmt) "ACPI: utils: " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include "internal.h"
#include "sleep.h"
-#define _COMPONENT ACPI_BUS_COMPONENT
-ACPI_MODULE_NAME("utils");
-
/* --------------------------------------------------------------------------
Object Evaluation Helpers
-------------------------------------------------------------------------- */
-static void
-acpi_util_eval_error(acpi_handle h, acpi_string p, acpi_status s)
+static void acpi_util_eval_error(acpi_handle h, acpi_string p, acpi_status s)
{
-#ifdef ACPI_DEBUG_OUTPUT
- char prefix[80] = {'\0'};
- struct acpi_buffer buffer = {sizeof(prefix), prefix};
- acpi_get_name(h, ACPI_FULL_PATHNAME, &buffer);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Evaluate [%s.%s]: %s\n",
- (char *) prefix, p, acpi_format_exception(s)));
-#else
- return;
-#endif
+ acpi_handle_debug(h, "Evaluate [%s]: %s\n", p, acpi_format_exception(s));
}
acpi_status
if (!package || (package->type != ACPI_TYPE_PACKAGE)
|| (package->package.count < 1)) {
- printk(KERN_WARNING PREFIX "Invalid package argument\n");
+ pr_debug("Invalid package argument\n");
return AE_BAD_PARAMETER;
}
if (!format || !format->pointer || (format->length < 1)) {
- printk(KERN_WARNING PREFIX "Invalid format argument\n");
+ pr_debug("Invalid format argument\n");
return AE_BAD_PARAMETER;
}
if (!buffer) {
- printk(KERN_WARNING PREFIX "Invalid buffer argument\n");
+ pr_debug("Invalid buffer argument\n");
return AE_BAD_PARAMETER;
}
format_count = (format->length / sizeof(char)) - 1;
if (format_count > package->package.count) {
- printk(KERN_WARNING PREFIX "Format specifies more objects [%d]"
- " than exist in package [%d].\n",
- format_count, package->package.count);
+ pr_debug("Format specifies more objects [%d] than present [%d]\n",
+ format_count, package->package.count);
return AE_BAD_DATA;
}
tail_offset += sizeof(char *);
break;
default:
- printk(KERN_WARNING PREFIX "Invalid package element"
- " [%d]: got number, expecting"
- " [%c]\n",
- i, format_string[i]);
+ pr_debug("Invalid package element [%d]: got number, expected [%c]\n",
+ i, format_string[i]);
return AE_BAD_DATA;
}
break;
tail_offset += sizeof(u8 *);
break;
default:
- printk(KERN_WARNING PREFIX "Invalid package element"
- " [%d] got string/buffer,"
- " expecting [%c]\n",
- i, format_string[i]);
+ pr_debug("Invalid package element [%d] got string/buffer, expected [%c]\n",
+ i, format_string[i]);
return AE_BAD_DATA;
}
break;
tail_offset += sizeof(void *);
break;
default:
- printk(KERN_WARNING PREFIX "Invalid package element"
- " [%d] got reference,"
- " expecting [%c]\n",
- i, format_string[i]);
+ pr_debug("Invalid package element [%d] got reference, expected [%c]\n",
+ i, format_string[i]);
return AE_BAD_DATA;
}
break;
case ACPI_TYPE_PACKAGE:
default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Found unsupported element at index=%d\n",
- i));
+ pr_debug("Unsupported element at index=%d\n", i);
/* TBD: handle nested packages... */
return AE_SUPPORT;
}
*data = element.integer.value;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%llu]\n", *data));
+ acpi_handle_debug(handle, "Return value [%llu]\n", *data);
return AE_OK;
}
/* Get the acpi_handle. */
list->handles[i] = element->reference.handle;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found reference [%p]\n",
- list->handles[i]));
+ acpi_handle_debug(list->handles[i], "Found in reference list\n");
}
end:
EXPORT_SYMBOL(acpi_dev_present);
/**
- * acpi_dev_get_first_match_dev - Return the first match of ACPI device
+ * acpi_dev_get_next_match_dev - Return the next match of ACPI device
+ * @adev: Pointer to the previous acpi_device matching this @hid, @uid and @hrv
* @hid: Hardware ID of the device.
* @uid: Unique ID of the device, pass NULL to not check _UID
* @hrv: Hardware Revision of the device, pass -1 to not check _HRV
*
- * Return the first match of ACPI device if a matching device was present
+ * Return the next match of ACPI device if another matching device was present
* at the moment of invocation, or NULL otherwise.
*
* The caller is responsible to call put_device() on the returned device.
* See additional information in acpi_dev_present() as well.
*/
struct acpi_device *
-acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
+acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv)
{
+ struct device *start = adev ? &adev->dev : NULL;
struct acpi_dev_match_info match = {};
struct device *dev;
match.uid = uid;
match.hrv = hrv;
- dev = bus_find_device(&acpi_bus_type, NULL, &match, acpi_dev_match_cb);
+ dev = bus_find_device(&acpi_bus_type, start, &match, acpi_dev_match_cb);
return dev ? to_acpi_device(dev) : NULL;
}
+EXPORT_SYMBOL(acpi_dev_get_next_match_dev);
+
+/**
+ * acpi_dev_get_first_match_dev - Return the first match of ACPI device
+ * @hid: Hardware ID of the device.
+ * @uid: Unique ID of the device, pass NULL to not check _UID
+ * @hrv: Hardware Revision of the device, pass -1 to not check _HRV
+ *
+ * Return the first match of ACPI device if a matching device was present
+ * at the moment of invocation, or NULL otherwise.
+ *
+ * The caller is responsible to call put_device() on the returned device.
+ *
+ * See additional information in acpi_dev_present() as well.
+ */
+struct acpi_device *
+acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
+{
+ return acpi_dev_get_next_match_dev(NULL, hid, uid, hrv);
+}
EXPORT_SYMBOL(acpi_dev_get_first_match_dev);
/*
projects / linux-2.6-microblaze.git / blobdiff