*****************************************************************************/
/*
- * Copyright (C) 2000 - 2005, 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 <acpi/acpi.h>
#include <acpi/acnamesp.h>
#include <acpi/amlcode.h>
#include <acpi/actables.h>
#define _COMPONENT ACPI_NAMESPACE
- ACPI_MODULE_NAME ("nsutils")
+ACPI_MODULE_NAME("nsutils")
/* Local prototypes */
-
-static u8
-acpi_ns_valid_path_separator (
- char sep);
+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);
+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)
- * component_id - Caller's component ID (for error output)
* internal_name - Name or path of the namespace node
* lookup_status - Exception code from NS lookup
*
******************************************************************************/
void
-acpi_ns_report_error (
- char *module_name,
- u32 line_number,
- u32 component_id,
- char *internal_name,
- acpi_status lookup_status)
+acpi_ns_report_error(char *module_name,
+ u32 line_number,
+ char *internal_name, acpi_status lookup_status)
{
- acpi_status status;
- char *name = NULL;
+ acpi_status status;
+ u32 bad_name;
+ char *name = NULL;
-
- acpi_os_printf ("%8s-%04d: *** Error: Looking up ",
- module_name, line_number);
+ 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_os_printf ("[0x%4.4X] (NON-ASCII)\n",
- *(ACPI_CAST_PTR (u32, internal_name)));
- }
- else {
+ 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);
+ 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 (ACPI_SUCCESS(status)) {
+ acpi_os_printf("[%s]", name);
+ } else {
+ acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
}
if (name) {
- ACPI_MEM_FREE (name);
+ ACPI_FREE(name);
}
}
- acpi_os_printf (" in namespace, %s\n",
- acpi_format_exception (lookup_status));
+ 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)
- * component_id - Caller's component ID (for error output)
* Message - Error message to use on failure
* prefix_node - Prefix relative to the path
- * Path - Path to the node
+ * Path - Path to the node (optional)
* method_status - Execution status
*
* RETURN: None
******************************************************************************/
void
-acpi_ns_report_method_error (
- char *module_name,
- u32 line_number,
- u32 component_id,
- char *message,
- struct acpi_namespace_node *prefix_node,
- char *path,
- acpi_status method_status)
+acpi_ns_report_method_error(char *module_name,
+ u32 line_number,
+ char *message,
+ struct acpi_namespace_node *prefix_node,
+ char *path, acpi_status method_status)
{
- acpi_status status;
- struct acpi_namespace_node *node = prefix_node;
+ 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_by_path (path, prefix_node,
- ACPI_NS_NO_UPSEARCH, &node);
- if (ACPI_FAILURE (status)) {
- acpi_os_printf ("report_method_error: Could not get node\n");
- return;
+ 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_os_printf ("%8s-%04d: *** Error: ", module_name, line_number);
- acpi_ns_print_node_pathname (node, message);
- acpi_os_printf (", %s\n", acpi_format_exception (method_status));
+ acpi_ns_print_node_pathname(node, message);
+ acpi_os_printf(", %s\n", acpi_format_exception(method_status));
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_print_node_pathname
******************************************************************************/
void
-acpi_ns_print_node_pathname (
- struct acpi_namespace_node *node,
- char *message)
+acpi_ns_print_node_pathname(struct acpi_namespace_node *node, char *message)
{
- struct acpi_buffer buffer;
- acpi_status status;
-
+ struct acpi_buffer buffer;
+ acpi_status status;
if (!node) {
- acpi_os_printf ("[NULL NAME]");
+ acpi_os_printf("[NULL NAME]");
return;
}
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
- status = acpi_ns_handle_to_pathname (node, &buffer);
- if (ACPI_SUCCESS (status)) {
+ status = acpi_ns_handle_to_pathname(node, &buffer);
+ if (ACPI_SUCCESS(status)) {
if (message) {
- acpi_os_printf ("%s ", message);
+ acpi_os_printf("%s ", message);
}
- acpi_os_printf ("[%s] (Node %p)", (char *) buffer.pointer, node);
- ACPI_MEM_FREE (buffer.pointer);
+ acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node);
+ ACPI_FREE(buffer.pointer);
}
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_valid_root_prefix
*
******************************************************************************/
-u8
-acpi_ns_valid_root_prefix (
- char prefix)
+u8 acpi_ns_valid_root_prefix(char prefix)
{
return ((u8) (prefix == '\\'));
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_valid_path_separator
*
******************************************************************************/
-static u8
-acpi_ns_valid_path_separator (
- char sep)
+static u8 acpi_ns_valid_path_separator(char sep)
{
return ((u8) (sep == '.'));
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_get_type
*
******************************************************************************/
-acpi_object_type
-acpi_ns_get_type (
- struct acpi_namespace_node *node)
+acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
{
- ACPI_FUNCTION_TRACE ("ns_get_type");
-
+ ACPI_FUNCTION_TRACE(ns_get_type);
if (!node) {
- ACPI_REPORT_WARNING (("ns_get_type: Null Node input pointer\n"));
- return_VALUE (ACPI_TYPE_ANY);
+ ACPI_WARNING((AE_INFO, "Null Node parameter"));
+ return_UINT32(ACPI_TYPE_ANY);
}
- return_VALUE ((acpi_object_type) node->type);
+ return_UINT32((acpi_object_type) node->type);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_local
*
******************************************************************************/
-u32
-acpi_ns_local (
- acpi_object_type type)
+u32 acpi_ns_local(acpi_object_type type)
{
- ACPI_FUNCTION_TRACE ("ns_local");
+ ACPI_FUNCTION_TRACE(ns_local);
+ if (!acpi_ut_valid_object_type(type)) {
- if (!acpi_ut_valid_object_type (type)) {
/* Type code out of range */
- ACPI_REPORT_WARNING (("ns_local: Invalid Object Type\n"));
- return_VALUE (ACPI_NS_NORMAL);
+ ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
+ return_UINT32(ACPI_NS_NORMAL);
}
- return_VALUE ((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
+ return_UINT32((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_get_internal_name_length
*
******************************************************************************/
-void
-acpi_ns_get_internal_name_length (
- struct acpi_namestring_info *info)
+void acpi_ns_get_internal_name_length(struct acpi_namestring_info *info)
{
- char *next_external_char;
- u32 i;
-
-
- ACPI_FUNCTION_ENTRY ();
+ char *next_external_char;
+ u32 i;
+ ACPI_FUNCTION_ENTRY();
next_external_char = info->external_name;
info->num_carats = 0;
*
* strlen() + 1 covers the first name_seg, which has no path separator
*/
- if (acpi_ns_valid_root_prefix (next_external_char[0])) {
+ if (acpi_ns_valid_root_prefix(next_external_char[0])) {
info->fully_qualified = TRUE;
next_external_char++;
- }
- else {
+ } else {
/*
* Handle Carat prefixes
*/
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])) {
+ 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;
+ 4 + info->num_carats;
info->next_external_char = next_external_char;
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_build_internal_name
*
******************************************************************************/
-acpi_status
-acpi_ns_build_internal_name (
- struct acpi_namestring_info *info)
+acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
{
- u32 num_segments = info->num_segments;
- char *internal_name = info->internal_name;
- char *external_name = info->next_external_char;
- char *result = NULL;
- acpi_native_uint i;
-
-
- ACPI_FUNCTION_TRACE ("ns_build_internal_name");
+ u32 num_segments = info->num_segments;
+ char *internal_name = info->internal_name;
+ char *external_name = info->next_external_char;
+ char *result = NULL;
+ acpi_native_uint i;
+ ACPI_FUNCTION_TRACE(ns_build_internal_name);
/* Setup the correct prefixes, counts, and pointers */
if (num_segments <= 1) {
result = &internal_name[1];
- }
- else if (num_segments == 2) {
+ } else if (num_segments == 2) {
internal_name[1] = AML_DUAL_NAME_PREFIX;
result = &internal_name[2];
- }
- else {
+ } else {
internal_name[1] = AML_MULTI_NAME_PREFIX_OP;
- internal_name[2] = (char) num_segments;
+ internal_name[2] = (char)num_segments;
result = &internal_name[3];
}
- }
- else {
+ } else {
/*
* Not fully qualified.
* Handle Carats first, then append the name segments
if (num_segments <= 1) {
result = &internal_name[i];
- }
- else if (num_segments == 2) {
+ } else if (num_segments == 2) {
internal_name[i] = AML_DUAL_NAME_PREFIX;
- result = &internal_name[(acpi_native_uint) (i+1)];
- }
- else {
+ result = &internal_name[(acpi_native_uint) (i + 1)];
+ } else {
internal_name[i] = AML_MULTI_NAME_PREFIX_OP;
- internal_name[(acpi_native_uint) (i+1)] = (char) num_segments;
- result = &internal_name[(acpi_native_uint) (i+2)];
+ internal_name[(acpi_native_uint) (i + 1)] =
+ (char)num_segments;
+ result = &internal_name[(acpi_native_uint) (i + 2)];
}
}
for (; num_segments; num_segments--) {
for (i = 0; i < ACPI_NAME_SIZE; i++) {
- if (acpi_ns_valid_path_separator (*external_name) ||
- (*external_name == 0)) {
+ if (acpi_ns_valid_path_separator(*external_name) ||
+ (*external_name == 0)) {
+
/* Pad the segment with underscore(s) if segment is short */
result[i] = '_';
- }
- else {
+ } else {
/* Convert the character to uppercase and save it */
- result[i] = (char) ACPI_TOUPPER ((int) *external_name);
+ 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);
+ if (!acpi_ns_valid_path_separator(*external_name) &&
+ (*external_name != 0)) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* Move on the next segment */
*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));
+ 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);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_internalize_name
*
*******************************************************************************/
-acpi_status
-acpi_ns_internalize_name (
- char *external_name,
- char **converted_name)
+acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
{
- char *internal_name;
- struct acpi_namestring_info info;
- acpi_status status;
-
+ char *internal_name;
+ struct acpi_namestring_info info;
+ acpi_status status;
- ACPI_FUNCTION_TRACE ("ns_internalize_name");
+ ACPI_FUNCTION_TRACE(ns_internalize_name);
-
- if ((!external_name) ||
- (*external_name == 0) ||
- (!converted_name)) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ 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);
+ acpi_ns_get_internal_name_length(&info);
/* We need a segment to store the internal name */
- internal_name = ACPI_MEM_CALLOCATE (info.length);
+ internal_name = ACPI_ALLOCATE_ZEROED(info.length);
if (!internal_name) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ 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_MEM_FREE (internal_name);
- return_ACPI_STATUS (status);
+ 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);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_externalize_name
******************************************************************************/
acpi_status
-acpi_ns_externalize_name (
- u32 internal_name_length,
- char *internal_name,
- u32 *converted_name_length,
- char **converted_name)
+acpi_ns_externalize_name(u32 internal_name_length,
+ char *internal_name,
+ u32 * converted_name_length, char **converted_name)
{
- acpi_native_uint names_index = 0;
- acpi_native_uint num_segments = 0;
- acpi_native_uint required_length;
- acpi_native_uint prefix_length = 0;
- acpi_native_uint i = 0;
- acpi_native_uint j = 0;
-
+ acpi_native_uint names_index = 0;
+ acpi_native_uint num_segments = 0;
+ acpi_native_uint required_length;
+ acpi_native_uint prefix_length = 0;
+ acpi_native_uint i = 0;
+ acpi_native_uint j = 0;
- ACPI_FUNCTION_TRACE ("ns_externalize_name");
+ ACPI_FUNCTION_TRACE(ns_externalize_name);
-
- if (!internal_name_length ||
- !internal_name ||
- !converted_name) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ if (!internal_name_length || !internal_name || !converted_name) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/*
for (i = 0; i < internal_name_length; i++) {
if (internal_name[i] == '^') {
prefix_length = i + 1;
- }
- else {
+ } else {
break;
}
}
names_index = prefix_length + 2;
num_segments = (acpi_native_uint) (u8)
- internal_name[(acpi_native_uint) (prefix_length + 1)];
+ internal_name[(acpi_native_uint)
+ (prefix_length + 1)];
break;
case AML_DUAL_NAME_PREFIX:
* punctuation ('.') between object names, plus the NULL terminator.
*/
required_length = prefix_length + (4 * num_segments) +
- ((num_segments > 0) ? (num_segments - 1) : 0) + 1;
+ ((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_REPORT_ERROR (("ns_externalize_name: Invalid internal name\n"));
- return_ACPI_STATUS (AE_BAD_PATHNAME);
+ ACPI_ERROR((AE_INFO, "Invalid internal name"));
+ return_ACPI_STATUS(AE_BAD_PATHNAME);
}
/*
* Build converted_name
*/
- *converted_name = ACPI_MEM_CALLOCATE (required_length);
+ *converted_name = ACPI_ALLOCATE_ZEROED(required_length);
if (!(*converted_name)) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ return_ACPI_STATUS(AE_NO_MEMORY);
}
j = 0;
*converted_name_length = (u32) required_length;
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_map_handle_to_node
*
******************************************************************************/
-struct acpi_namespace_node *
-acpi_ns_map_handle_to_node (
- acpi_handle handle)
+struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
{
- ACPI_FUNCTION_ENTRY ();
-
+ ACPI_FUNCTION_ENTRY();
/*
- * Simple implementation.
+ * Simple implementation
*/
- if (!handle) {
- return (NULL);
- }
-
- if (handle == ACPI_ROOT_OBJECT) {
+ 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) {
+ if (ACPI_GET_DESCRIPTOR_TYPE(handle) != ACPI_DESC_TYPE_NAMED) {
return (NULL);
}
- return ((struct acpi_namespace_node *) handle);
+ return (ACPI_CAST_PTR(struct acpi_namespace_node, handle));
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_convert_entry_to_handle
*
******************************************************************************/
-acpi_handle
-acpi_ns_convert_entry_to_handle (
- struct acpi_namespace_node *node)
+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 (ACPI_ROOT_OBJECT);
}
-
return ((acpi_handle) Node);
------------------------------------------------------*/
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_terminate
*
******************************************************************************/
-void
-acpi_ns_terminate (
- void)
+void acpi_ns_terminate(void)
{
- union acpi_operand_object *obj_desc;
-
-
- ACPI_FUNCTION_TRACE ("ns_terminate");
+ 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);
+ 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);
+ obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node);
if (obj_desc) {
- acpi_ns_detach_object (acpi_gbl_root_node);
+ acpi_ns_detach_object(acpi_gbl_root_node);
}
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Namespace freed\n"));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n"));
/*
* 2) Now we can delete the ACPI tables
*/
- acpi_tb_delete_all_tables ();
- ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n"));
+ acpi_tb_delete_all_tables();
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
return_VOID;
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_opens_scope
*
******************************************************************************/
-u32
-acpi_ns_opens_scope (
- acpi_object_type type)
+u32 acpi_ns_opens_scope(acpi_object_type type)
{
- ACPI_FUNCTION_TRACE_STR ("ns_opens_scope", acpi_ut_get_type_name (type));
+ ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type));
+ if (!acpi_ut_valid_object_type(type)) {
- if (!acpi_ut_valid_object_type (type)) {
/* type code out of range */
- ACPI_REPORT_WARNING (("ns_opens_scope: Invalid Object Type %X\n", type));
- return_VALUE (ACPI_NS_NORMAL);
+ ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
+ return_UINT32(ACPI_NS_NORMAL);
}
- return_VALUE (((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
+ return_UINT32(((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
}
-
/*******************************************************************************
*
- * FUNCTION: acpi_ns_get_node_by_path
+ * 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.
- * start_node - Root of subtree to be searched, or NS_ALL for the
+ * 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.
******************************************************************************/
acpi_status
-acpi_ns_get_node_by_path (
- char *pathname,
- struct acpi_namespace_node *start_node,
- u32 flags,
- struct acpi_namespace_node **return_node)
+acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
+ char *pathname,
+ u32 flags, struct acpi_namespace_node **return_node)
{
- union acpi_generic_state scope_info;
- acpi_status status;
- char *internal_path = NULL;
+ union acpi_generic_state scope_info;
+ acpi_status status;
+ char *internal_path;
+ ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname);
- ACPI_FUNCTION_TRACE_PTR ("ns_get_node_by_path", pathname);
-
+ if (!pathname) {
+ *return_node = prefix_node;
+ if (!prefix_node) {
+ *return_node = acpi_gbl_root_node;
+ }
+ return_ACPI_STATUS(AE_OK);
+ }
- if (pathname) {
- /* Convert path to internal representation */
+ /* Convert path to internal representation */
- status = acpi_ns_internalize_name (pathname, &internal_path);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
- }
+ 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)) {
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
goto cleanup;
}
/* Setup lookup scope (search starting point) */
- scope_info.scope.node = start_node;
+ 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",
- internal_path, acpi_format_exception (status)));
+ 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);
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-cleanup:
- if (internal_path) {
- ACPI_MEM_FREE (internal_path);
- }
- return_ACPI_STATUS (status);
+ cleanup:
+ ACPI_FREE(internal_path);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_get_parent_node
*
******************************************************************************/
-struct acpi_namespace_node *
-acpi_ns_get_parent_node (
- struct acpi_namespace_node *node)
+struct acpi_namespace_node *acpi_ns_get_parent_node(struct acpi_namespace_node
+ *node)
{
- ACPI_FUNCTION_ENTRY ();
-
+ ACPI_FUNCTION_ENTRY();
if (!node) {
return (NULL);
return (node->peer);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ns_get_next_valid_node
*
******************************************************************************/
-struct acpi_namespace_node *
-acpi_ns_get_next_valid_node (
- struct acpi_namespace_node *node)
+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 */
return (node->peer);
}
-
#ifdef ACPI_OBSOLETE_FUNCTIONS
/*******************************************************************************
*
*
******************************************************************************/
-acpi_name
-acpi_ns_find_parent_name (
- struct acpi_namespace_node *child_node)
+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");
+ 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);
+ 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)));
+ 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);
+ 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)));
+ 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);
+ return_VALUE(ACPI_UNKNOWN_NAME);
}
#endif
-
-
git.openpandora.org / pandora-kernel.git / blobdiff