*****************************************************************************/
/*
- * Copyright (C) 2000 - 2004, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* POSSIBILITY OF SUCH DAMAGES.
*/
+#include <linux/module.h>
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
-
#define _COMPONENT ACPI_NAMESPACE
- ACPI_MODULE_NAME ("nsxfname")
-
+ACPI_MODULE_NAME("nsxfname")
/******************************************************************************
*
* FUNCTION: acpi_get_handle
*
* PARAMETERS: Parent - Object to search under (search scope).
- * path_name - Pointer to an asciiz string containing the
- * name
- * ret_handle - Where the return handle is placed
+ * Pathname - Pointer to an asciiz string containing the
+ * name
+ * ret_handle - Where the return handle is returned
*
* RETURN: Status
*
* namespace handle.
*
******************************************************************************/
-
acpi_status
-acpi_get_handle (
- acpi_handle parent,
- acpi_string pathname,
- acpi_handle *ret_handle)
+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 ();
+ acpi_status status;
+ struct acpi_namespace_node *node = NULL;
+ struct acpi_namespace_node *prefix_node = NULL;
+ ACPI_FUNCTION_ENTRY();
/* Parameter Validation */
/* Convert a parent handle to a prefix node */
if (parent) {
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
return (status);
}
- prefix_node = acpi_ns_map_handle_to_node (parent);
+ prefix_node = acpi_ns_map_handle_to_node(parent);
if (!prefix_node) {
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (AE_BAD_PARAMETER);
}
- status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
return (status);
}
}
/* Special case for root, since we can't search for it */
- if (ACPI_STRCMP (pathname, ACPI_NS_ROOT_PATH) == 0) {
- *ret_handle = acpi_ns_convert_entry_to_handle (acpi_gbl_root_node);
+ if (ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH) == 0) {
+ *ret_handle =
+ acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
return (AE_OK);
}
/*
* Find the Node and convert to a handle
*/
- status = acpi_ns_get_node_by_path (pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
- &node);
+ status =
+ acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
+ &node);
*ret_handle = NULL;
- if (ACPI_SUCCESS (status)) {
- *ret_handle = acpi_ns_convert_entry_to_handle (node);
+ if (ACPI_SUCCESS(status)) {
+ *ret_handle = acpi_ns_convert_entry_to_handle(node);
}
return (status);
}
+EXPORT_SYMBOL(acpi_get_handle);
/******************************************************************************
*
******************************************************************************/
acpi_status
-acpi_get_name (
- acpi_handle handle,
- u32 name_type,
- struct acpi_buffer *buffer)
+acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
{
- acpi_status status;
- struct acpi_namespace_node *node;
-
+ acpi_status status;
+ struct acpi_namespace_node *node;
/* Parameter validation */
return (AE_BAD_PARAMETER);
}
- status = acpi_ut_validate_buffer (buffer);
- if (ACPI_FAILURE (status)) {
+ 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);
+ 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)) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
return (status);
}
- node = acpi_ns_map_handle_to_node (handle);
+ 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)) {
+ 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;
+ 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:
-unlock_and_exit:
-
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (status);
}
+EXPORT_SYMBOL(acpi_get_name);
/******************************************************************************
*
* FUNCTION: acpi_get_object_info
*
* PARAMETERS: Handle - Object Handle
- * Info - Where the info is returned
+ * Buffer - Where the info is returned
*
* RETURN: Status
*
******************************************************************************/
acpi_status
-acpi_get_object_info (
- acpi_handle handle,
- struct acpi_buffer *buffer)
+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;
+ 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;
-
+ acpi_size size;
/* Parameter validation */
return (AE_BAD_PARAMETER);
}
- status = acpi_ut_validate_buffer (buffer);
- if (ACPI_FAILURE (status)) {
+ status = acpi_ut_validate_buffer(buffer);
+ if (ACPI_FAILURE(status)) {
return (status);
}
- status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return (status);
+ info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_device_info));
+ if (!info) {
+ return (AE_NO_MEMORY);
}
- node = acpi_ns_map_handle_to_node (handle);
+ 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);
- return (AE_BAD_PARAMETER);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ goto cleanup;
}
/* Init return structure */
- size = sizeof (struct acpi_device_info);
- ACPI_MEMSET (&info, 0, size);
+ size = sizeof(struct acpi_device_info);
- info.type = node->type;
- info.name = node->name.integer;
- info.valid = 0;
+ info->type = node->type;
+ info->name = node->name.integer;
+ info->valid = 0;
- status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (status)) {
- return (status);
+ 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) {
+ 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
+ * 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;
+ 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;
+ 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 += ((acpi_size) cid_list->count - 1) *
- sizeof (struct acpi_compatible_id);
- info.valid |= ACPI_VALID_CID;
+ 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;
+ 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;
+ 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;
+ status = acpi_ut_execute_sxds(node, info->highest_dstates);
+ if (ACPI_SUCCESS(status)) {
+ info->valid |= ACPI_VALID_SXDS;
}
-
- status = AE_OK;
}
/* Validate/Allocate/Clear caller buffer */
- status = acpi_ut_initialize_buffer (buffer, size);
- if (ACPI_FAILURE (status)) {
+ 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));
+ ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info));
if (cid_list) {
- ACPI_MEMCPY (&return_info->compatibility_id, cid_list, cid_list->size);
+ ACPI_MEMCPY(&return_info->compatibility_id, cid_list,
+ cid_list->size);
}
-
-cleanup:
+ cleanup:
+ ACPI_MEM_FREE(info);
if (cid_list) {
- ACPI_MEM_FREE (cid_list);
+ ACPI_MEM_FREE(cid_list);
}
return (status);
}
+EXPORT_SYMBOL(acpi_get_object_info);
git://git.onelab.eu / linux-2.6.git / blobdiff