Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
new file mode 100644
index 0000000..0fcd98b
--- /dev/null
+++ b/drivers/acpi/utilities/utcopy.c
@@ -0,0 +1,930 @@
+/******************************************************************************
+ *
+ * Module Name: utcopy - Internal to external object translation utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+
+#include <acpi/acpi.h>
+#include <acpi/amlcode.h>
+
+
+#define _COMPONENT ACPI_UTILITIES
+ ACPI_MODULE_NAME ("utcopy")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_isimple_to_esimple
+ *
+ * PARAMETERS: *internal_object - Pointer to the object we are examining
+ * *Buffer - Where the object is returned
+ * *space_used - Where the data length is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to place a simple object in a user
+ * buffer.
+ *
+ * The buffer is assumed to have sufficient space for the object.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_isimple_to_esimple (
+ union acpi_operand_object *internal_object,
+ union acpi_object *external_object,
+ u8 *data_space,
+ acpi_size *buffer_space_used)
+{
+ acpi_status status = AE_OK;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_isimple_to_esimple");
+
+
+ *buffer_space_used = 0;
+
+ /*
+ * Check for NULL object case (could be an uninitialized
+ * package element)
+ */
+ if (!internal_object) {
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Always clear the external object */
+
+ ACPI_MEMSET (external_object, 0, sizeof (union acpi_object));
+
+ /*
+ * In general, the external object will be the same type as
+ * the internal object
+ */
+ external_object->type = ACPI_GET_OBJECT_TYPE (internal_object);
+
+ /* However, only a limited number of external types are supported */
+
+ switch (ACPI_GET_OBJECT_TYPE (internal_object)) {
+ case ACPI_TYPE_STRING:
+
+ external_object->string.pointer = (char *) data_space;
+ external_object->string.length = internal_object->string.length;
+ *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD ((acpi_size) internal_object->string.length + 1);
+
+ ACPI_MEMCPY ((void *) data_space, (void *) internal_object->string.pointer,
+ (acpi_size) internal_object->string.length + 1);
+ break;
+
+
+ case ACPI_TYPE_BUFFER:
+
+ external_object->buffer.pointer = data_space;
+ external_object->buffer.length = internal_object->buffer.length;
+ *buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD (internal_object->string.length);
+
+ ACPI_MEMCPY ((void *) data_space, (void *) internal_object->buffer.pointer,
+ internal_object->buffer.length);
+ break;
+
+
+ case ACPI_TYPE_INTEGER:
+
+ external_object->integer.value = internal_object->integer.value;
+ break;
+
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+
+ /*
+ * This is an object reference. Attempt to dereference it.
+ */
+ switch (internal_object->reference.opcode) {
+ case AML_INT_NAMEPATH_OP:
+
+ /* For namepath, return the object handle ("reference") */
+
+ default:
+ /*
+ * Use the object type of "Any" to indicate a reference
+ * to object containing a handle to an ACPI named object.
+ */
+ external_object->type = ACPI_TYPE_ANY;
+ external_object->reference.handle = internal_object->reference.node;
+ break;
+ }
+ break;
+
+
+ case ACPI_TYPE_PROCESSOR:
+
+ external_object->processor.proc_id = internal_object->processor.proc_id;
+ external_object->processor.pblk_address = internal_object->processor.address;
+ external_object->processor.pblk_length = internal_object->processor.length;
+ break;
+
+
+ case ACPI_TYPE_POWER:
+
+ external_object->power_resource.system_level =
+ internal_object->power_resource.system_level;
+
+ external_object->power_resource.resource_order =
+ internal_object->power_resource.resource_order;
+ break;
+
+
+ default:
+ /*
+ * There is no corresponding external object type
+ */
+ return_ACPI_STATUS (AE_SUPPORT);
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ielement_to_eelement
+ *
+ * PARAMETERS: acpi_pkg_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy one package element to another package element
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_ielement_to_eelement (
+ u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state,
+ void *context)
+{
+ acpi_status status = AE_OK;
+ struct acpi_pkg_info *info = (struct acpi_pkg_info *) context;
+ acpi_size object_space;
+ u32 this_index;
+ union acpi_object *target_object;
+
+
+ ACPI_FUNCTION_ENTRY ();
+
+
+ this_index = state->pkg.index;
+ target_object = (union acpi_object *)
+ &((union acpi_object *)(state->pkg.dest_object))->package.elements[this_index];
+
+ switch (object_type) {
+ case ACPI_COPY_TYPE_SIMPLE:
+
+ /*
+ * This is a simple or null object
+ */
+ status = acpi_ut_copy_isimple_to_esimple (source_object,
+ target_object, info->free_space, &object_space);
+ if (ACPI_FAILURE (status)) {
+ return (status);
+ }
+ break;
+
+
+ case ACPI_COPY_TYPE_PACKAGE:
+
+ /*
+ * Build the package object
+ */
+ target_object->type = ACPI_TYPE_PACKAGE;
+ target_object->package.count = source_object->package.count;
+ target_object->package.elements = ACPI_CAST_PTR (union acpi_object, info->free_space);
+
+ /*
+ * Pass the new package object back to the package walk routine
+ */
+ state->pkg.this_target_obj = target_object;
+
+ /*
+ * Save space for the array of objects (Package elements)
+ * update the buffer length counter
+ */
+ object_space = ACPI_ROUND_UP_TO_NATIVE_WORD (
+ (acpi_size) target_object->package.count * sizeof (union acpi_object));
+ break;
+
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ info->free_space += object_space;
+ info->length += object_space;
+ return (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ipackage_to_epackage
+ *
+ * PARAMETERS: *internal_object - Pointer to the object we are returning
+ * *Buffer - Where the object is returned
+ * *space_used - Where the object length is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to place a package object in a user
+ * buffer. A package object by definition contains other objects.
+ *
+ * The buffer is assumed to have sufficient space for the object.
+ * The caller must have verified the buffer length needed using the
+ * acpi_ut_get_object_size function before calling this function.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_ipackage_to_epackage (
+ union acpi_operand_object *internal_object,
+ u8 *buffer,
+ acpi_size *space_used)
+{
+ union acpi_object *external_object;
+ acpi_status status;
+ struct acpi_pkg_info info;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_ipackage_to_epackage");
+
+
+ /*
+ * First package at head of the buffer
+ */
+ external_object = ACPI_CAST_PTR (union acpi_object, buffer);
+
+ /*
+ * Free space begins right after the first package
+ */
+ info.length = ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
+ info.free_space = buffer + ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
+ info.object_space = 0;
+ info.num_packages = 1;
+
+ external_object->type = ACPI_GET_OBJECT_TYPE (internal_object);
+ external_object->package.count = internal_object->package.count;
+ external_object->package.elements = ACPI_CAST_PTR (union acpi_object, info.free_space);
+
+ /*
+ * Leave room for an array of ACPI_OBJECTS in the buffer
+ * and move the free space past it
+ */
+ info.length += (acpi_size) external_object->package.count *
+ ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
+ info.free_space += external_object->package.count *
+ ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
+
+ status = acpi_ut_walk_package_tree (internal_object, external_object,
+ acpi_ut_copy_ielement_to_eelement, &info);
+
+ *space_used = info.length;
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_iobject_to_eobject
+ *
+ * PARAMETERS: *internal_object - The internal object to be converted
+ * *buffer_ptr - Where the object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to build an API object to be returned to
+ * the caller.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_iobject_to_eobject (
+ union acpi_operand_object *internal_object,
+ struct acpi_buffer *ret_buffer)
+{
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_iobject_to_eobject");
+
+
+ if (ACPI_GET_OBJECT_TYPE (internal_object) == ACPI_TYPE_PACKAGE) {
+ /*
+ * Package object: Copy all subobjects (including
+ * nested packages)
+ */
+ status = acpi_ut_copy_ipackage_to_epackage (internal_object,
+ ret_buffer->pointer, &ret_buffer->length);
+ }
+ else {
+ /*
+ * Build a simple object (no nested objects)
+ */
+ status = acpi_ut_copy_isimple_to_esimple (internal_object,
+ (union acpi_object *) ret_buffer->pointer,
+ ((u8 *) ret_buffer->pointer +
+ ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object))),
+ &ret_buffer->length);
+ /*
+ * build simple does not include the object size in the length
+ * so we add it in here
+ */
+ ret_buffer->length += sizeof (union acpi_object);
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_esimple_to_isimple
+ *
+ * PARAMETERS: *external_object - The external object to be converted
+ * *internal_object - Where the internal object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function copies an external object to an internal one.
+ * NOTE: Pointers can be copied, we don't need to copy data.
+ * (The pointers have to be valid in our address space no matter
+ * what we do with them!)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_esimple_to_isimple (
+ union acpi_object *external_object,
+ union acpi_operand_object **ret_internal_object)
+{
+ union acpi_operand_object *internal_object;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_esimple_to_isimple");
+
+
+ /*
+ * Simple types supported are: String, Buffer, Integer
+ */
+ switch (external_object->type) {
+ case ACPI_TYPE_STRING:
+ case ACPI_TYPE_BUFFER:
+ case ACPI_TYPE_INTEGER:
+
+ internal_object = acpi_ut_create_internal_object ((u8) external_object->type);
+ if (!internal_object) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+ break;
+
+ default:
+ /* All other types are not supported */
+
+ return_ACPI_STATUS (AE_SUPPORT);
+ }
+
+
+ /* Must COPY string and buffer contents */
+
+ switch (external_object->type) {
+ case ACPI_TYPE_STRING:
+
+ internal_object->string.pointer =
+ ACPI_MEM_CALLOCATE ((acpi_size) external_object->string.length + 1);
+ if (!internal_object->string.pointer) {
+ goto error_exit;
+ }
+
+ ACPI_MEMCPY (internal_object->string.pointer,
+ external_object->string.pointer,
+ external_object->string.length);
+
+ internal_object->string.length = external_object->string.length;
+ break;
+
+
+ case ACPI_TYPE_BUFFER:
+
+ internal_object->buffer.pointer =
+ ACPI_MEM_CALLOCATE (external_object->buffer.length);
+ if (!internal_object->buffer.pointer) {
+ goto error_exit;
+ }
+
+ ACPI_MEMCPY (internal_object->buffer.pointer,
+ external_object->buffer.pointer,
+ external_object->buffer.length);
+
+ internal_object->buffer.length = external_object->buffer.length;
+ break;
+
+
+ case ACPI_TYPE_INTEGER:
+
+ internal_object->integer.value = external_object->integer.value;
+ break;
+
+ default:
+ /* Other types can't get here */
+ break;
+ }
+
+ *ret_internal_object = internal_object;
+ return_ACPI_STATUS (AE_OK);
+
+
+error_exit:
+ acpi_ut_remove_reference (internal_object);
+ return_ACPI_STATUS (AE_NO_MEMORY);
+}
+
+
+#ifdef ACPI_FUTURE_IMPLEMENTATION
+
+/* Code to convert packages that are parameters to control methods */
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_epackage_to_ipackage
+ *
+ * PARAMETERS: *internal_object - Pointer to the object we are returning
+ * *Buffer - Where the object is returned
+ * *space_used - Where the length of the object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to place a package object in a user
+ * buffer. A package object by definition contains other objects.
+ *
+ * The buffer is assumed to have sufficient space for the object.
+ * The caller must have verified the buffer length needed using the
+ * acpi_ut_get_object_size function before calling this function.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_copy_epackage_to_ipackage (
+ union acpi_operand_object *internal_object,
+ u8 *buffer,
+ u32 *space_used)
+{
+ u8 *free_space;
+ union acpi_object *external_object;
+ u32 length = 0;
+ u32 this_index;
+ u32 object_space = 0;
+ union acpi_operand_object *this_internal_obj;
+ union acpi_object *this_external_obj;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_epackage_to_ipackage");
+
+
+ /*
+ * First package at head of the buffer
+ */
+ external_object = (union acpi_object *)buffer;
+
+ /*
+ * Free space begins right after the first package
+ */
+ free_space = buffer + sizeof(union acpi_object);
+
+
+ external_object->type = ACPI_GET_OBJECT_TYPE (internal_object);
+ external_object->package.count = internal_object->package.count;
+ external_object->package.elements = (union acpi_object *)free_space;
+
+ /*
+ * Build an array of ACPI_OBJECTS in the buffer
+ * and move the free space past it
+ */
+ free_space += external_object->package.count * sizeof(union acpi_object);
+
+
+ /* Call walk_package */
+
+}
+
+#endif /* Future implementation */
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_eobject_to_iobject
+ *
+ * PARAMETERS: *internal_object - The external object to be converted
+ * *buffer_ptr - Where the internal object is returned
+ *
+ * RETURN: Status - the status of the call
+ *
+ * DESCRIPTION: Converts an external object to an internal object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_eobject_to_iobject (
+ union acpi_object *external_object,
+ union acpi_operand_object **internal_object)
+{
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_eobject_to_iobject");
+
+
+ if (external_object->type == ACPI_TYPE_PACKAGE) {
+ /*
+ * Packages as external input to control methods are not supported,
+ */
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Packages as parameters not implemented!\n"));
+
+ return_ACPI_STATUS (AE_NOT_IMPLEMENTED);
+ }
+
+ else {
+ /*
+ * Build a simple object (no nested objects)
+ */
+ status = acpi_ut_copy_esimple_to_isimple (external_object, internal_object);
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_simple_object
+ *
+ * PARAMETERS: source_desc - The internal object to be copied
+ * dest_desc - New target object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Simple copy of one internal object to another. Reference count
+ * of the destination object is preserved.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_simple_object (
+ union acpi_operand_object *source_desc,
+ union acpi_operand_object *dest_desc)
+{
+ u16 reference_count;
+ union acpi_operand_object *next_object;
+
+
+ /* Save fields from destination that we don't want to overwrite */
+
+ reference_count = dest_desc->common.reference_count;
+ next_object = dest_desc->common.next_object;
+
+ /* Copy the entire source object over the destination object*/
+
+ ACPI_MEMCPY ((char *) dest_desc, (char *) source_desc,
+ sizeof (union acpi_operand_object));
+
+ /* Restore the saved fields */
+
+ dest_desc->common.reference_count = reference_count;
+ dest_desc->common.next_object = next_object;
+
+ /* Handle the objects with extra data */
+
+ switch (ACPI_GET_OBJECT_TYPE (dest_desc)) {
+ case ACPI_TYPE_BUFFER:
+
+ dest_desc->buffer.node = NULL;
+ dest_desc->common.flags = source_desc->common.flags;
+
+ /*
+ * Allocate and copy the actual buffer if and only if:
+ * 1) There is a valid buffer pointer
+ * 2) The buffer is not static (not in an ACPI table) (in this case,
+ * the actual pointer was already copied above)
+ */
+ if ((source_desc->buffer.pointer) &&
+ (!(source_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
+ dest_desc->buffer.pointer = NULL;
+
+ /* Create an actual buffer only if length > 0 */
+
+ if (source_desc->buffer.length) {
+ dest_desc->buffer.pointer =
+ ACPI_MEM_ALLOCATE (source_desc->buffer.length);
+ if (!dest_desc->buffer.pointer) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* Copy the actual buffer data */
+
+ ACPI_MEMCPY (dest_desc->buffer.pointer,
+ source_desc->buffer.pointer,
+ source_desc->buffer.length);
+ }
+ }
+ break;
+
+ case ACPI_TYPE_STRING:
+
+ /*
+ * Allocate and copy the actual string if and only if:
+ * 1) There is a valid string pointer
+ * 2) The string is not static (not in an ACPI table) (in this case,
+ * the actual pointer was already copied above)
+ */
+ if ((source_desc->string.pointer) &&
+ (!(source_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
+ dest_desc->string.pointer =
+ ACPI_MEM_ALLOCATE ((acpi_size) source_desc->string.length + 1);
+ if (!dest_desc->string.pointer) {
+ return (AE_NO_MEMORY);
+ }
+
+ ACPI_MEMCPY (dest_desc->string.pointer, source_desc->string.pointer,
+ (acpi_size) source_desc->string.length + 1);
+ }
+ break;
+
+ case ACPI_TYPE_LOCAL_REFERENCE:
+ /*
+ * We copied the reference object, so we now must add a reference
+ * to the object pointed to by the reference
+ */
+ acpi_ut_add_reference (source_desc->reference.object);
+ break;
+
+ default:
+ /* Nothing to do for other simple objects */
+ break;
+ }
+
+ return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ielement_to_ielement
+ *
+ * PARAMETERS: acpi_pkg_callback
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy one package element to another package element
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_ielement_to_ielement (
+ u8 object_type,
+ union acpi_operand_object *source_object,
+ union acpi_generic_state *state,
+ void *context)
+{
+ acpi_status status = AE_OK;
+ u32 this_index;
+ union acpi_operand_object **this_target_ptr;
+ union acpi_operand_object *target_object;
+
+
+ ACPI_FUNCTION_ENTRY ();
+
+
+ this_index = state->pkg.index;
+ this_target_ptr = (union acpi_operand_object **)
+ &state->pkg.dest_object->package.elements[this_index];
+
+ switch (object_type) {
+ case ACPI_COPY_TYPE_SIMPLE:
+
+ /* A null source object indicates a (legal) null package element */
+
+ if (source_object) {
+ /*
+ * This is a simple object, just copy it
+ */
+ target_object = acpi_ut_create_internal_object (
+ ACPI_GET_OBJECT_TYPE (source_object));
+ if (!target_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ status = acpi_ut_copy_simple_object (source_object, target_object);
+ if (ACPI_FAILURE (status)) {
+ goto error_exit;
+ }
+
+ *this_target_ptr = target_object;
+ }
+ else {
+ /* Pass through a null element */
+
+ *this_target_ptr = NULL;
+ }
+ break;
+
+
+ case ACPI_COPY_TYPE_PACKAGE:
+
+ /*
+ * This object is a package - go down another nesting level
+ * Create and build the package object
+ */
+ target_object = acpi_ut_create_internal_object (ACPI_TYPE_PACKAGE);
+ if (!target_object) {
+ return (AE_NO_MEMORY);
+ }
+
+ target_object->package.count = source_object->package.count;
+ target_object->common.flags = source_object->common.flags;
+
+ /*
+ * Create the object array
+ */
+ target_object->package.elements =
+ ACPI_MEM_CALLOCATE (((acpi_size) source_object->package.count + 1) *
+ sizeof (void *));
+ if (!target_object->package.elements) {
+ status = AE_NO_MEMORY;
+ goto error_exit;
+ }
+
+ /*
+ * Pass the new package object back to the package walk routine
+ */
+ state->pkg.this_target_obj = target_object;
+
+ /*
+ * Store the object pointer in the parent package object
+ */
+ *this_target_ptr = target_object;
+ break;
+
+
+ default:
+ return (AE_BAD_PARAMETER);
+ }
+
+ return (status);
+
+error_exit:
+ acpi_ut_remove_reference (target_object);
+ return (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_ipackage_to_ipackage
+ *
+ * PARAMETERS: *source_obj - Pointer to the source package object
+ * *dest_obj - Where the internal object is returned
+ *
+ * RETURN: Status - the status of the call
+ *
+ * DESCRIPTION: This function is called to copy an internal package object
+ * into another internal package object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_ipackage_to_ipackage (
+ union acpi_operand_object *source_obj,
+ union acpi_operand_object *dest_obj,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_ipackage_to_ipackage");
+
+
+ dest_obj->common.type = ACPI_GET_OBJECT_TYPE (source_obj);
+ dest_obj->common.flags = source_obj->common.flags;
+ dest_obj->package.count = source_obj->package.count;
+
+ /*
+ * Create the object array and walk the source package tree
+ */
+ dest_obj->package.elements = ACPI_MEM_CALLOCATE (
+ ((acpi_size) source_obj->package.count + 1) *
+ sizeof (void *));
+ if (!dest_obj->package.elements) {
+ ACPI_REPORT_ERROR (
+ ("aml_build_copy_internal_package_object: Package allocation failure\n"));
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /*
+ * Copy the package element-by-element by walking the package "tree".
+ * This handles nested packages of arbitrary depth.
+ */
+ status = acpi_ut_walk_package_tree (source_obj, dest_obj,
+ acpi_ut_copy_ielement_to_ielement, walk_state);
+ if (ACPI_FAILURE (status)) {
+ /* On failure, delete the destination package object */
+
+ acpi_ut_remove_reference (dest_obj);
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_copy_iobject_to_iobject
+ *
+ * PARAMETERS: walk_state - Current walk state
+ * source_desc - The internal object to be copied
+ * dest_desc - Where the copied object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Copy an internal object to a new internal object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ut_copy_iobject_to_iobject (
+ union acpi_operand_object *source_desc,
+ union acpi_operand_object **dest_desc,
+ struct acpi_walk_state *walk_state)
+{
+ acpi_status status = AE_OK;
+
+
+ ACPI_FUNCTION_TRACE ("ut_copy_iobject_to_iobject");
+
+
+ /* Create the top level object */
+
+ *dest_desc = acpi_ut_create_internal_object (ACPI_GET_OBJECT_TYPE (source_desc));
+ if (!*dest_desc) {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Copy the object and possible subobjects */
+
+ if (ACPI_GET_OBJECT_TYPE (source_desc) == ACPI_TYPE_PACKAGE) {
+ status = acpi_ut_copy_ipackage_to_ipackage (source_desc, *dest_desc,
+ walk_state);
+ }
+ else {
+ status = acpi_ut_copy_simple_object (source_desc, *dest_desc);
+ }
+
+ return_ACPI_STATUS (status);
+}
+
+