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Diffstat (limited to 'drivers/acpi/utilities/utcopy.c')
| -rw-r--r-- | drivers/acpi/utilities/utcopy.c | 930 |
1 files changed, 930 insertions, 0 deletions
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c new file mode 100644 index 00000000000..0fcd98bde0d --- /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); +} + + |