utmisc.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:27k
- /*******************************************************************************
- *
- * Module Name: utmisc - common utility procedures
- * $Revision: 52 $
- *
- ******************************************************************************/
- /*
- * Copyright (C) 2000, 2001 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include "acpi.h"
- #include "acevents.h"
- #include "achware.h"
- #include "acnamesp.h"
- #include "acinterp.h"
- #include "amlcode.h"
- #include "acdebug.h"
- #define _COMPONENT ACPI_UTILITIES
- MODULE_NAME ("utmisc")
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_valid_acpi_name
- *
- * PARAMETERS: Character - The character to be examined
- *
- * RETURN: 1 if Character may appear in a name, else 0
- *
- * 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)
- {
- NATIVE_CHAR *name_ptr = (NATIVE_CHAR *) &name;
- u32 i;
- FUNCTION_ENTRY ();
- for (i = 0; i < ACPI_NAME_SIZE; i++) {
- if (!((name_ptr[i] == '_') ||
- (name_ptr[i] >= 'A' && name_ptr[i] <= 'Z') ||
- (name_ptr[i] >= '0' && name_ptr[i] <= '9'))) {
- return (FALSE);
- }
- }
- return (TRUE);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_valid_acpi_character
- *
- * PARAMETERS: Character - The character to be examined
- *
- * RETURN: 1 if Character may appear in a name, else 0
- *
- * DESCRIPTION: Check for a printable character
- *
- ******************************************************************************/
- u8
- acpi_ut_valid_acpi_character (
- NATIVE_CHAR character)
- {
- FUNCTION_ENTRY ();
- return ((u8) ((character == '_') ||
- (character >= 'A' && character <= 'Z') ||
- (character >= '0' && character <= '9')));
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_strupr
- *
- * PARAMETERS: Src_string - The source string to convert to
- *
- * RETURN: Src_string
- *
- * DESCRIPTION: Convert string to uppercase
- *
- ******************************************************************************/
- NATIVE_CHAR *
- acpi_ut_strupr (
- NATIVE_CHAR *src_string)
- {
- NATIVE_CHAR *string;
- FUNCTION_ENTRY ();
- /* Walk entire string, uppercasing the letters */
- for (string = src_string; *string; ) {
- *string = (char) TOUPPER (*string);
- string++;
- }
- return (src_string);
- }
- /*******************************************************************************
- *
- * 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;
- FUNCTION_TRACE ("Ut_mutex_initialize");
- /*
- * Create each of the predefined mutex objects
- */
- for (i = 0; i < NUM_MTX; i++) {
- status = acpi_ut_create_mutex (i);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
- }
- }
- return_ACPI_STATUS (AE_OK);
- }
- /*******************************************************************************
- *
- * 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;
- FUNCTION_TRACE ("Ut_mutex_terminate");
- /*
- * Delete each predefined mutex object
- */
- for (i = 0; i < NUM_MTX; i++) {
- acpi_ut_delete_mutex (i);
- }
- return_VOID;
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_create_mutex
- *
- * PARAMETERS: Mutex_iD - ID of the mutex to be created
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a mutex object.
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_create_mutex (
- ACPI_MUTEX_HANDLE mutex_id)
- {
- acpi_status status = AE_OK;
- FUNCTION_TRACE_U32 ("Ut_create_mutex", mutex_id);
- if (mutex_id > MAX_MTX) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
- }
- if (!acpi_gbl_acpi_mutex_info[mutex_id].mutex) {
- status = acpi_os_create_semaphore (1, 1,
- &acpi_gbl_acpi_mutex_info[mutex_id].mutex);
- acpi_gbl_acpi_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
- acpi_gbl_acpi_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.
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_delete_mutex (
- ACPI_MUTEX_HANDLE mutex_id)
- {
- acpi_status status;
- FUNCTION_TRACE_U32 ("Ut_delete_mutex", mutex_id);
- if (mutex_id > MAX_MTX) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
- }
- status = acpi_os_delete_semaphore (acpi_gbl_acpi_mutex_info[mutex_id].mutex);
- acpi_gbl_acpi_mutex_info[mutex_id].mutex = NULL;
- acpi_gbl_acpi_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
- return_ACPI_STATUS (status);
- }
- /*******************************************************************************
- *
- * 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;
- u32 i;
- u32 this_thread_id;
- PROC_NAME ("Ut_acquire_mutex");
- if (mutex_id > MAX_MTX) {
- return (AE_BAD_PARAMETER);
- }
- this_thread_id = acpi_os_get_thread_id ();
- /*
- * 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 < MAX_MTX; i++) {
- if (acpi_gbl_acpi_mutex_info[i].owner_id == this_thread_id) {
- if (i == mutex_id) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Mutex [%s] already acquired by this thread [%X]n",
- acpi_ut_get_mutex_name (mutex_id), this_thread_id));
- return (AE_ALREADY_ACQUIRED);
- }
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Invalid acquire order: Thread %X owns [%s], wants [%s]n",
- this_thread_id, acpi_ut_get_mutex_name (i),
- acpi_ut_get_mutex_name (mutex_id)));
- return (AE_ACQUIRE_DEADLOCK);
- }
- }
- ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
- "Thread %X attempting to acquire Mutex [%s]n",
- this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
- status = acpi_os_wait_semaphore (acpi_gbl_acpi_mutex_info[mutex_id].mutex,
- 1, WAIT_FOREVER);
- if (ACPI_SUCCESS (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]n",
- this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
- acpi_gbl_acpi_mutex_info[mutex_id].use_count++;
- acpi_gbl_acpi_mutex_info[mutex_id].owner_id = this_thread_id;
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Thread %X could not acquire Mutex [%s] %sn",
- this_thread_id, acpi_ut_get_mutex_name (mutex_id),
- acpi_format_exception (status)));
- }
- 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_status status;
- u32 i;
- u32 this_thread_id;
- PROC_NAME ("Ut_release_mutex");
- this_thread_id = acpi_os_get_thread_id ();
- ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
- "Thread %X releasing Mutex [%s]n", this_thread_id,
- acpi_ut_get_mutex_name (mutex_id)));
- if (mutex_id > MAX_MTX) {
- return (AE_BAD_PARAMETER);
- }
- /*
- * Mutex must be acquired in order to release it!
- */
- if (acpi_gbl_acpi_mutex_info[mutex_id].owner_id == ACPI_MUTEX_NOT_ACQUIRED) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Mutex [%s] is not acquired, cannot releasen",
- acpi_ut_get_mutex_name (mutex_id)));
- return (AE_NOT_ACQUIRED);
- }
- /*
- * 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 < MAX_MTX; i++) {
- if (acpi_gbl_acpi_mutex_info[i].owner_id == this_thread_id) {
- if (i == mutex_id) {
- continue;
- }
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Invalid release order: owns [%s], releasing [%s]n",
- acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id)));
- return (AE_RELEASE_DEADLOCK);
- }
- }
- /* Mark unlocked FIRST */
- acpi_gbl_acpi_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
- status = acpi_os_signal_semaphore (acpi_gbl_acpi_mutex_info[mutex_id].mutex, 1);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Thread %X could not release Mutex [%s] %sn",
- this_thread_id, acpi_ut_get_mutex_name (mutex_id),
- acpi_format_exception (status)));
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]n",
- this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
- }
- return (status);
- }
- /*******************************************************************************
- *
- * 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: None
- *
- * DESCRIPTION: Create a new state and push it
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_create_update_state_and_push (
- acpi_operand_object *object,
- u16 action,
- acpi_generic_state **state_list)
- {
- acpi_generic_state *state;
- 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_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: None
- *
- * 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,
- acpi_generic_state **state_list)
- {
- acpi_generic_state *state;
- 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: Status
- *
- * DESCRIPTION: Push a state object onto a state stack
- *
- ******************************************************************************/
- void
- acpi_ut_push_generic_state (
- acpi_generic_state **list_head,
- acpi_generic_state *state)
- {
- 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: Status
- *
- * DESCRIPTION: Pop a state object from a state stack
- *
- ******************************************************************************/
- acpi_generic_state *
- acpi_ut_pop_generic_state (
- acpi_generic_state **list_head)
- {
- acpi_generic_state *state;
- 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: Status
- *
- * DESCRIPTION: Create a generic state object. Attempt to obtain one from
- * the global state cache; If none available, create a new one.
- *
- ******************************************************************************/
- acpi_generic_state *
- acpi_ut_create_generic_state (void)
- {
- acpi_generic_state *state;
- FUNCTION_ENTRY ();
- state = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_STATE);
- /* Initialize */
- if (state) {
- state->common.data_type = ACPI_DESC_TYPE_STATE;
- }
- return (state);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_create_update_state
- *
- * PARAMETERS: Object - Initial Object to be installed in the
- * state
- * Action - Update action to be performed
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create an "Update State" - a flavor of the generic state used
- * to update reference counts and delete complex objects such
- * as packages.
- *
- ******************************************************************************/
- acpi_generic_state *
- acpi_ut_create_update_state (
- acpi_operand_object *object,
- u16 action)
- {
- acpi_generic_state *state;
- FUNCTION_TRACE_PTR ("Ut_create_update_state", object);
- /* Create the generic state object */
- state = acpi_ut_create_generic_state ();
- if (!state) {
- return (NULL);
- }
- /* Init fields specific to the update struct */
- state->common.data_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: Status
- *
- * DESCRIPTION: Create a "Package State"
- *
- ******************************************************************************/
- acpi_generic_state *
- acpi_ut_create_pkg_state (
- void *internal_object,
- void *external_object,
- u16 index)
- {
- acpi_generic_state *state;
- FUNCTION_TRACE_PTR ("Ut_create_pkg_state", internal_object);
- /* Create the generic state object */
- state = acpi_ut_create_generic_state ();
- if (!state) {
- return (NULL);
- }
- /* Init fields specific to the update struct */
- state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE;
- state->pkg.source_object = (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: Status
- *
- * DESCRIPTION: Create a "Control State" - a flavor of the generic state used
- * to support nested IF/WHILE constructs in the AML.
- *
- ******************************************************************************/
- acpi_generic_state *
- acpi_ut_create_control_state (
- void)
- {
- acpi_generic_state *state;
- FUNCTION_TRACE ("Ut_create_control_state");
- /* Create the generic state object */
- state = acpi_ut_create_generic_state ();
- if (!state) {
- return (NULL);
- }
- /* Init fields specific to the control struct */
- state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL;
- state->common.state = CONTROL_CONDITIONAL_EXECUTING;
- return_PTR (state);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_delete_generic_state
- *
- * PARAMETERS: State - The state object to be deleted
- *
- * RETURN: Status
- *
- * DESCRIPTION: Put a state object back into the global state cache. The object
- * is not actually freed at this time.
- *
- ******************************************************************************/
- void
- acpi_ut_delete_generic_state (
- acpi_generic_state *state)
- {
- FUNCTION_TRACE ("Ut_delete_generic_state");
- acpi_ut_release_to_cache (ACPI_MEM_LIST_STATE, state);
- return_VOID;
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_delete_generic_state_cache
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Purge the global state object cache. Used during subsystem
- * termination.
- *
- ******************************************************************************/
- void
- acpi_ut_delete_generic_state_cache (
- void)
- {
- FUNCTION_TRACE ("Ut_delete_generic_state_cache");
- acpi_ut_delete_generic_cache (ACPI_MEM_LIST_STATE);
- return_VOID;
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_resolve_package_references
- *
- * PARAMETERS: Obj_desc - The Package object on which to resolve refs
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk through a package and turn internal references into values
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_resolve_package_references (
- acpi_operand_object *obj_desc)
- {
- u32 count;
- acpi_operand_object *sub_object;
- FUNCTION_TRACE ("Ut_resolve_package_references");
- if (obj_desc->common.type != ACPI_TYPE_PACKAGE) {
- /* The object must be a package */
- REPORT_ERROR (("Must resolve Package Refs on a Packagen"));
- return_ACPI_STATUS(AE_ERROR);
- }
- /*
- * TBD: what about nested packages? */
- for (count = 0; count < obj_desc->package.count; count++) {
- sub_object = obj_desc->package.elements[count];
- if (sub_object->common.type == INTERNAL_TYPE_REFERENCE) {
- if (sub_object->reference.opcode == AML_ZERO_OP) {
- sub_object->common.type = ACPI_TYPE_INTEGER;
- sub_object->integer.value = 0;
- }
- else if (sub_object->reference.opcode == AML_ONE_OP) {
- sub_object->common.type = ACPI_TYPE_INTEGER;
- sub_object->integer.value = 1;
- }
- else if (sub_object->reference.opcode == AML_ONES_OP) {
- sub_object->common.type = ACPI_TYPE_INTEGER;
- sub_object->integer.value = ACPI_INTEGER_MAX;
- }
- }
- }
- return_ACPI_STATUS(AE_OK);
- }
- #ifdef ACPI_DEBUG
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_display_init_pathname
- *
- * PARAMETERS: Obj_handle - Handle whose pathname will be displayed
- * Path - Additional path string to be appended
- *
- * RETURN: acpi_status
- *
- * DESCRIPTION: Display full pathnbame of an object, DEBUG ONLY
- *
- ******************************************************************************/
- void
- acpi_ut_display_init_pathname (
- acpi_handle obj_handle,
- char *path)
- {
- acpi_status status;
- u32 length = 128;
- char buffer[128];
- PROC_NAME ("Ut_display_init_pathname");
- status = acpi_ns_handle_to_pathname (obj_handle, &length, buffer);
- if (ACPI_SUCCESS (status)) {
- if (path) {
- ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "%s.%sn", buffer, path));
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "%sn", buffer));
- }
- }
- }
- #endif
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_walk_package_tree
- *
- * PARAMETERS: Obj_desc - The Package object on which to resolve refs
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk through a package
- *
- ******************************************************************************/
- acpi_status
- acpi_ut_walk_package_tree (
- acpi_operand_object *source_object,
- void *target_object,
- ACPI_PKG_CALLBACK walk_callback,
- void *context)
- {
- acpi_status status = AE_OK;
- acpi_generic_state *state_list = NULL;
- acpi_generic_state *state;
- u32 this_index;
- acpi_operand_object *this_source_obj;
- 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) {
- this_index = state->pkg.index;
- this_source_obj = (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) ||
- (!VALID_DESCRIPTOR_TYPE (
- this_source_obj, ACPI_DESC_TYPE_INTERNAL)) ||
- (!IS_THIS_OBJECT_TYPE (
- this_source_obj, ACPI_TYPE_PACKAGE))) {
- status = walk_callback (ACPI_COPY_TYPE_SIMPLE, this_source_obj,
- state, context);
- if (ACPI_FAILURE (status)) {
- /* TBD: must delete package created up to this point */
- 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 sub-object of type package */
- status = walk_callback (ACPI_COPY_TYPE_PACKAGE, this_source_obj,
- state, context);
- if (ACPI_FAILURE (status)) {
- /* TBD: must delete package created up to this point */
- return_ACPI_STATUS (status);
- }
- /*
- * The callback above returned a new target package object.
- */
- /*
- * Push the current state and create a new one
- */
- 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) {
- /* TBD: must delete package created up to this point */
- return_ACPI_STATUS (AE_NO_MEMORY);
- }
- }
- }
- /* We should never get here */
- return (AE_AML_INTERNAL);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_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)
- * Message - Error message to use on failure
- *
- * RETURN: None
- *
- * DESCRIPTION: Print error message
- *
- ******************************************************************************/
- void
- acpi_ut_report_error (
- NATIVE_CHAR *module_name,
- u32 line_number,
- u32 component_id)
- {
- acpi_os_printf ("%8s-%04d: *** Error: ", module_name, line_number);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_report_warning
- *
- * 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
- *
- * RETURN: None
- *
- * DESCRIPTION: Print warning message
- *
- ******************************************************************************/
- void
- acpi_ut_report_warning (
- NATIVE_CHAR *module_name,
- u32 line_number,
- u32 component_id)
- {
- acpi_os_printf ("%8s-%04d: *** Warning: ", module_name, line_number);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_ut_report_info
- *
- * 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
- *
- * RETURN: None
- *
- * DESCRIPTION: Print information message
- *
- ******************************************************************************/
- void
- acpi_ut_report_info (
- NATIVE_CHAR *module_name,
- u32 line_number,
- u32 component_id)
- {
- acpi_os_printf ("%8s-%04d: *** Info: ", module_name, line_number);
- }