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marcus.erl |
/******************************************************************************
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*
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* Module Name: utcopy - Internal to external object translation utilities
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2007, R. Byron Moore
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include <acpi/amlcode.h>
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME("utcopy")
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/* Local prototypes */
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static acpi_status
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acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
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union acpi_object *external_object,
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u8 * data_space, acpi_size * buffer_space_used);
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static acpi_status
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acpi_ut_copy_ielement_to_ielement(u8 object_type,
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union acpi_operand_object *source_object,
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union acpi_generic_state *state,
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void *context);
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static acpi_status
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acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
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u8 * buffer, acpi_size * space_used);
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static acpi_status
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acpi_ut_copy_esimple_to_isimple(union acpi_object *user_obj,
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union acpi_operand_object **return_obj);
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static acpi_status
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acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
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union acpi_operand_object **internal_object);
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static acpi_status
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acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
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union acpi_operand_object *dest_desc);
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static acpi_status
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acpi_ut_copy_ielement_to_eelement(u8 object_type,
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union acpi_operand_object *source_object,
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union acpi_generic_state *state,
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void *context);
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static acpi_status
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acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
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union acpi_operand_object *dest_obj,
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struct acpi_walk_state *walk_state);
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_copy_isimple_to_esimple
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*
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* PARAMETERS: internal_object - Source object to be copied
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* external_object - Where to return the copied object
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* data_space - Where object data is returned (such as
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* buffer and string data)
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* buffer_space_used - Length of data_space that was used
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to copy a simple internal object to
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* an external object.
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*
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* The data_space buffer is assumed to have sufficient space for
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* the object.
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*
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******************************************************************************/
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static acpi_status
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acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object,
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union acpi_object *external_object,
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u8 * data_space, acpi_size * buffer_space_used)
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{
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acpi_status status = AE_OK;
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ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple);
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*buffer_space_used = 0;
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/*
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* Check for NULL object case (could be an uninitialized
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* package element)
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*/
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if (!internal_object) {
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return_ACPI_STATUS(AE_OK);
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}
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/* Always clear the external object */
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ACPI_MEMSET(external_object, 0, sizeof(union acpi_object));
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/*
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* In general, the external object will be the same type as
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* the internal object
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*/
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external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
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/* However, only a limited number of external types are supported */
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switch (ACPI_GET_OBJECT_TYPE(internal_object)) {
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case ACPI_TYPE_STRING:
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external_object->string.pointer = (char *)data_space;
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external_object->string.length = internal_object->string.length;
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*buffer_space_used = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
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internal_object->
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string.
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length + 1);
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ACPI_MEMCPY((void *)data_space,
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(void *)internal_object->string.pointer,
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(acpi_size) internal_object->string.length + 1);
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break;
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case ACPI_TYPE_BUFFER:
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external_object->buffer.pointer = data_space;
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external_object->buffer.length = internal_object->buffer.length;
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*buffer_space_used =
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ACPI_ROUND_UP_TO_NATIVE_WORD(internal_object->string.
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length);
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ACPI_MEMCPY((void *)data_space,
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(void *)internal_object->buffer.pointer,
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internal_object->buffer.length);
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break;
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case ACPI_TYPE_INTEGER:
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external_object->integer.value = internal_object->integer.value;
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break;
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case ACPI_TYPE_LOCAL_REFERENCE:
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/*
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* This is an object reference. Attempt to dereference it.
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*/
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switch (internal_object->reference.opcode) {
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case AML_INT_NAMEPATH_OP:
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/* For namepath, return the object handle ("reference") */
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default:
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/*
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* Use the object type of "Any" to indicate a reference
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* to object containing a handle to an ACPI named object.
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*/
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external_object->type = ACPI_TYPE_ANY;
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external_object->reference.handle =
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internal_object->reference.node;
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break;
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}
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break;
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case ACPI_TYPE_PROCESSOR:
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external_object->processor.proc_id =
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internal_object->processor.proc_id;
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external_object->processor.pblk_address =
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internal_object->processor.address;
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external_object->processor.pblk_length =
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internal_object->processor.length;
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break;
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case ACPI_TYPE_POWER:
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external_object->power_resource.system_level =
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internal_object->power_resource.system_level;
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external_object->power_resource.resource_order =
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internal_object->power_resource.resource_order;
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break;
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default:
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/*
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* There is no corresponding external object type
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*/
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return_ACPI_STATUS(AE_SUPPORT);
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}
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_copy_ielement_to_eelement
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*
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* PARAMETERS: acpi_pkg_callback
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*
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* RETURN: Status
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*
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* DESCRIPTION: Copy one package element to another package element
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*
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******************************************************************************/
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static acpi_status
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acpi_ut_copy_ielement_to_eelement(u8 object_type,
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union acpi_operand_object *source_object,
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union acpi_generic_state *state,
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void *context)
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{
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acpi_status status = AE_OK;
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struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
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acpi_size object_space;
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u32 this_index;
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union acpi_object *target_object;
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ACPI_FUNCTION_ENTRY();
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this_index = state->pkg.index;
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target_object = (union acpi_object *)
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&((union acpi_object *)(state->pkg.dest_object))->package.
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elements[this_index];
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switch (object_type) {
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case ACPI_COPY_TYPE_SIMPLE:
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/*
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* This is a simple or null object
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*/
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status = acpi_ut_copy_isimple_to_esimple(source_object,
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target_object,
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info->free_space,
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&object_space);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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break;
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case ACPI_COPY_TYPE_PACKAGE:
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/*
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* Build the package object
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274 |
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*/
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target_object->type = ACPI_TYPE_PACKAGE;
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target_object->package.count = source_object->package.count;
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target_object->package.elements =
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ACPI_CAST_PTR(union acpi_object, info->free_space);
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280 |
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/*
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281 |
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* Pass the new package object back to the package walk routine
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282 |
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*/
|
283 |
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state->pkg.this_target_obj = target_object;
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284 |
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|
285 |
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/*
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286 |
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* Save space for the array of objects (Package elements)
|
287 |
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* update the buffer length counter
|
288 |
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*/
|
289 |
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object_space = ACPI_ROUND_UP_TO_NATIVE_WORD((acpi_size)
|
290 |
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target_object->
|
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package.count *
|
292 |
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sizeof(union
|
293 |
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acpi_object));
|
294 |
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break;
|
295 |
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|
296 |
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default:
|
297 |
|
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return (AE_BAD_PARAMETER);
|
298 |
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}
|
299 |
|
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|
300 |
|
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info->free_space += object_space;
|
301 |
|
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info->length += object_space;
|
302 |
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return (status);
|
303 |
|
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}
|
304 |
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|
305 |
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/*******************************************************************************
|
306 |
|
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*
|
307 |
|
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* FUNCTION: acpi_ut_copy_ipackage_to_epackage
|
308 |
|
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*
|
309 |
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* PARAMETERS: internal_object - Pointer to the object we are returning
|
310 |
|
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* Buffer - Where the object is returned
|
311 |
|
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* space_used - Where the object length is returned
|
312 |
|
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*
|
313 |
|
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* RETURN: Status
|
314 |
|
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*
|
315 |
|
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* DESCRIPTION: This function is called to place a package object in a user
|
316 |
|
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* buffer. A package object by definition contains other objects.
|
317 |
|
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*
|
318 |
|
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* The buffer is assumed to have sufficient space for the object.
|
319 |
|
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* The caller must have verified the buffer length needed using the
|
320 |
|
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* acpi_ut_get_object_size function before calling this function.
|
321 |
|
|
*
|
322 |
|
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******************************************************************************/
|
323 |
|
|
|
324 |
|
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static acpi_status
|
325 |
|
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acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object,
|
326 |
|
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u8 * buffer, acpi_size * space_used)
|
327 |
|
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{
|
328 |
|
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union acpi_object *external_object;
|
329 |
|
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acpi_status status;
|
330 |
|
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struct acpi_pkg_info info;
|
331 |
|
|
|
332 |
|
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ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage);
|
333 |
|
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|
334 |
|
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/*
|
335 |
|
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* First package at head of the buffer
|
336 |
|
|
*/
|
337 |
|
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external_object = ACPI_CAST_PTR(union acpi_object, buffer);
|
338 |
|
|
|
339 |
|
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/*
|
340 |
|
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* Free space begins right after the first package
|
341 |
|
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*/
|
342 |
|
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info.length = ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
|
343 |
|
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info.free_space =
|
344 |
|
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buffer + ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
|
345 |
|
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info.object_space = 0;
|
346 |
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info.num_packages = 1;
|
347 |
|
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|
348 |
|
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external_object->type = ACPI_GET_OBJECT_TYPE(internal_object);
|
349 |
|
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external_object->package.count = internal_object->package.count;
|
350 |
|
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external_object->package.elements = ACPI_CAST_PTR(union acpi_object,
|
351 |
|
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info.free_space);
|
352 |
|
|
|
353 |
|
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/*
|
354 |
|
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* Leave room for an array of ACPI_OBJECTS in the buffer
|
355 |
|
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* and move the free space past it
|
356 |
|
|
*/
|
357 |
|
|
info.length += (acpi_size) external_object->package.count *
|
358 |
|
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ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
|
359 |
|
|
info.free_space += external_object->package.count *
|
360 |
|
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ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object));
|
361 |
|
|
|
362 |
|
|
status = acpi_ut_walk_package_tree(internal_object, external_object,
|
363 |
|
|
acpi_ut_copy_ielement_to_eelement,
|
364 |
|
|
&info);
|
365 |
|
|
|
366 |
|
|
*space_used = info.length;
|
367 |
|
|
return_ACPI_STATUS(status);
|
368 |
|
|
}
|
369 |
|
|
|
370 |
|
|
/*******************************************************************************
|
371 |
|
|
*
|
372 |
|
|
* FUNCTION: acpi_ut_copy_iobject_to_eobject
|
373 |
|
|
*
|
374 |
|
|
* PARAMETERS: internal_object - The internal object to be converted
|
375 |
|
|
* buffer_ptr - Where the object is returned
|
376 |
|
|
*
|
377 |
|
|
* RETURN: Status
|
378 |
|
|
*
|
379 |
|
|
* DESCRIPTION: This function is called to build an API object to be returned to
|
380 |
|
|
* the caller.
|
381 |
|
|
*
|
382 |
|
|
******************************************************************************/
|
383 |
|
|
|
384 |
|
|
acpi_status
|
385 |
|
|
acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object,
|
386 |
|
|
struct acpi_buffer *ret_buffer)
|
387 |
|
|
{
|
388 |
|
|
acpi_status status;
|
389 |
|
|
|
390 |
|
|
ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject);
|
391 |
|
|
|
392 |
|
|
if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) {
|
393 |
|
|
/*
|
394 |
|
|
* Package object: Copy all subobjects (including
|
395 |
|
|
* nested packages)
|
396 |
|
|
*/
|
397 |
|
|
status = acpi_ut_copy_ipackage_to_epackage(internal_object,
|
398 |
|
|
ret_buffer->pointer,
|
399 |
|
|
&ret_buffer->length);
|
400 |
|
|
} else {
|
401 |
|
|
/*
|
402 |
|
|
* Build a simple object (no nested objects)
|
403 |
|
|
*/
|
404 |
|
|
status = acpi_ut_copy_isimple_to_esimple(internal_object,
|
405 |
|
|
ACPI_CAST_PTR(union
|
406 |
|
|
acpi_object,
|
407 |
|
|
ret_buffer->
|
408 |
|
|
pointer),
|
409 |
|
|
ACPI_ADD_PTR(u8,
|
410 |
|
|
ret_buffer->
|
411 |
|
|
pointer,
|
412 |
|
|
ACPI_ROUND_UP_TO_NATIVE_WORD
|
413 |
|
|
(sizeof
|
414 |
|
|
(union
|
415 |
|
|
acpi_object))),
|
416 |
|
|
&ret_buffer->length);
|
417 |
|
|
/*
|
418 |
|
|
* build simple does not include the object size in the length
|
419 |
|
|
* so we add it in here
|
420 |
|
|
*/
|
421 |
|
|
ret_buffer->length += sizeof(union acpi_object);
|
422 |
|
|
}
|
423 |
|
|
|
424 |
|
|
return_ACPI_STATUS(status);
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
/*******************************************************************************
|
428 |
|
|
*
|
429 |
|
|
* FUNCTION: acpi_ut_copy_esimple_to_isimple
|
430 |
|
|
*
|
431 |
|
|
* PARAMETERS: external_object - The external object to be converted
|
432 |
|
|
* ret_internal_object - Where the internal object is returned
|
433 |
|
|
*
|
434 |
|
|
* RETURN: Status
|
435 |
|
|
*
|
436 |
|
|
* DESCRIPTION: This function copies an external object to an internal one.
|
437 |
|
|
* NOTE: Pointers can be copied, we don't need to copy data.
|
438 |
|
|
* (The pointers have to be valid in our address space no matter
|
439 |
|
|
* what we do with them!)
|
440 |
|
|
*
|
441 |
|
|
******************************************************************************/
|
442 |
|
|
|
443 |
|
|
static acpi_status
|
444 |
|
|
acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
|
445 |
|
|
union acpi_operand_object **ret_internal_object)
|
446 |
|
|
{
|
447 |
|
|
union acpi_operand_object *internal_object;
|
448 |
|
|
|
449 |
|
|
ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple);
|
450 |
|
|
|
451 |
|
|
/*
|
452 |
|
|
* Simple types supported are: String, Buffer, Integer
|
453 |
|
|
*/
|
454 |
|
|
switch (external_object->type) {
|
455 |
|
|
case ACPI_TYPE_STRING:
|
456 |
|
|
case ACPI_TYPE_BUFFER:
|
457 |
|
|
case ACPI_TYPE_INTEGER:
|
458 |
|
|
|
459 |
|
|
internal_object = acpi_ut_create_internal_object((u8)
|
460 |
|
|
external_object->
|
461 |
|
|
type);
|
462 |
|
|
if (!internal_object) {
|
463 |
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
464 |
|
|
}
|
465 |
|
|
break;
|
466 |
|
|
|
467 |
|
|
default:
|
468 |
|
|
/* All other types are not supported */
|
469 |
|
|
|
470 |
|
|
return_ACPI_STATUS(AE_SUPPORT);
|
471 |
|
|
}
|
472 |
|
|
|
473 |
|
|
/* Must COPY string and buffer contents */
|
474 |
|
|
|
475 |
|
|
switch (external_object->type) {
|
476 |
|
|
case ACPI_TYPE_STRING:
|
477 |
|
|
|
478 |
|
|
internal_object->string.pointer =
|
479 |
|
|
ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string.
|
480 |
|
|
length + 1);
|
481 |
|
|
if (!internal_object->string.pointer) {
|
482 |
|
|
goto error_exit;
|
483 |
|
|
}
|
484 |
|
|
|
485 |
|
|
ACPI_MEMCPY(internal_object->string.pointer,
|
486 |
|
|
external_object->string.pointer,
|
487 |
|
|
external_object->string.length);
|
488 |
|
|
|
489 |
|
|
internal_object->string.length = external_object->string.length;
|
490 |
|
|
break;
|
491 |
|
|
|
492 |
|
|
case ACPI_TYPE_BUFFER:
|
493 |
|
|
|
494 |
|
|
internal_object->buffer.pointer =
|
495 |
|
|
ACPI_ALLOCATE_ZEROED(external_object->buffer.length);
|
496 |
|
|
if (!internal_object->buffer.pointer) {
|
497 |
|
|
goto error_exit;
|
498 |
|
|
}
|
499 |
|
|
|
500 |
|
|
ACPI_MEMCPY(internal_object->buffer.pointer,
|
501 |
|
|
external_object->buffer.pointer,
|
502 |
|
|
external_object->buffer.length);
|
503 |
|
|
|
504 |
|
|
internal_object->buffer.length = external_object->buffer.length;
|
505 |
|
|
break;
|
506 |
|
|
|
507 |
|
|
case ACPI_TYPE_INTEGER:
|
508 |
|
|
|
509 |
|
|
internal_object->integer.value = external_object->integer.value;
|
510 |
|
|
break;
|
511 |
|
|
|
512 |
|
|
default:
|
513 |
|
|
/* Other types can't get here */
|
514 |
|
|
break;
|
515 |
|
|
}
|
516 |
|
|
|
517 |
|
|
*ret_internal_object = internal_object;
|
518 |
|
|
return_ACPI_STATUS(AE_OK);
|
519 |
|
|
|
520 |
|
|
error_exit:
|
521 |
|
|
acpi_ut_remove_reference(internal_object);
|
522 |
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
523 |
|
|
}
|
524 |
|
|
|
525 |
|
|
/*******************************************************************************
|
526 |
|
|
*
|
527 |
|
|
* FUNCTION: acpi_ut_copy_epackage_to_ipackage
|
528 |
|
|
*
|
529 |
|
|
* PARAMETERS: external_object - The external object to be converted
|
530 |
|
|
* internal_object - Where the internal object is returned
|
531 |
|
|
*
|
532 |
|
|
* RETURN: Status
|
533 |
|
|
*
|
534 |
|
|
* DESCRIPTION: Copy an external package object to an internal package.
|
535 |
|
|
* Handles nested packages.
|
536 |
|
|
*
|
537 |
|
|
******************************************************************************/
|
538 |
|
|
|
539 |
|
|
static acpi_status
|
540 |
|
|
acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object,
|
541 |
|
|
union acpi_operand_object **internal_object)
|
542 |
|
|
{
|
543 |
|
|
acpi_status status = AE_OK;
|
544 |
|
|
union acpi_operand_object *package_object;
|
545 |
|
|
union acpi_operand_object **package_elements;
|
546 |
|
|
acpi_native_uint i;
|
547 |
|
|
|
548 |
|
|
ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage);
|
549 |
|
|
|
550 |
|
|
/* Create the package object */
|
551 |
|
|
|
552 |
|
|
package_object =
|
553 |
|
|
acpi_ut_create_package_object(external_object->package.count);
|
554 |
|
|
if (!package_object) {
|
555 |
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
556 |
|
|
}
|
557 |
|
|
|
558 |
|
|
package_elements = package_object->package.elements;
|
559 |
|
|
|
560 |
|
|
/*
|
561 |
|
|
* Recursive implementation. Probably ok, since nested external packages
|
562 |
|
|
* as parameters should be very rare.
|
563 |
|
|
*/
|
564 |
|
|
for (i = 0; i < external_object->package.count; i++) {
|
565 |
|
|
status =
|
566 |
|
|
acpi_ut_copy_eobject_to_iobject(&external_object->package.
|
567 |
|
|
elements[i],
|
568 |
|
|
&package_elements[i]);
|
569 |
|
|
if (ACPI_FAILURE(status)) {
|
570 |
|
|
|
571 |
|
|
/* Truncate package and delete it */
|
572 |
|
|
|
573 |
|
|
package_object->package.count = i;
|
574 |
|
|
package_elements[i] = NULL;
|
575 |
|
|
acpi_ut_remove_reference(package_object);
|
576 |
|
|
return_ACPI_STATUS(status);
|
577 |
|
|
}
|
578 |
|
|
}
|
579 |
|
|
|
580 |
|
|
*internal_object = package_object;
|
581 |
|
|
return_ACPI_STATUS(status);
|
582 |
|
|
}
|
583 |
|
|
|
584 |
|
|
/*******************************************************************************
|
585 |
|
|
*
|
586 |
|
|
* FUNCTION: acpi_ut_copy_eobject_to_iobject
|
587 |
|
|
*
|
588 |
|
|
* PARAMETERS: external_object - The external object to be converted
|
589 |
|
|
* internal_object - Where the internal object is returned
|
590 |
|
|
*
|
591 |
|
|
* RETURN: Status - the status of the call
|
592 |
|
|
*
|
593 |
|
|
* DESCRIPTION: Converts an external object to an internal object.
|
594 |
|
|
*
|
595 |
|
|
******************************************************************************/
|
596 |
|
|
|
597 |
|
|
acpi_status
|
598 |
|
|
acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object,
|
599 |
|
|
union acpi_operand_object **internal_object)
|
600 |
|
|
{
|
601 |
|
|
acpi_status status;
|
602 |
|
|
|
603 |
|
|
ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject);
|
604 |
|
|
|
605 |
|
|
if (external_object->type == ACPI_TYPE_PACKAGE) {
|
606 |
|
|
status =
|
607 |
|
|
acpi_ut_copy_epackage_to_ipackage(external_object,
|
608 |
|
|
internal_object);
|
609 |
|
|
} else {
|
610 |
|
|
/*
|
611 |
|
|
* Build a simple object (no nested objects)
|
612 |
|
|
*/
|
613 |
|
|
status =
|
614 |
|
|
acpi_ut_copy_esimple_to_isimple(external_object,
|
615 |
|
|
internal_object);
|
616 |
|
|
}
|
617 |
|
|
|
618 |
|
|
return_ACPI_STATUS(status);
|
619 |
|
|
}
|
620 |
|
|
|
621 |
|
|
/*******************************************************************************
|
622 |
|
|
*
|
623 |
|
|
* FUNCTION: acpi_ut_copy_simple_object
|
624 |
|
|
*
|
625 |
|
|
* PARAMETERS: source_desc - The internal object to be copied
|
626 |
|
|
* dest_desc - New target object
|
627 |
|
|
*
|
628 |
|
|
* RETURN: Status
|
629 |
|
|
*
|
630 |
|
|
* DESCRIPTION: Simple copy of one internal object to another. Reference count
|
631 |
|
|
* of the destination object is preserved.
|
632 |
|
|
*
|
633 |
|
|
******************************************************************************/
|
634 |
|
|
|
635 |
|
|
static acpi_status
|
636 |
|
|
acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
|
637 |
|
|
union acpi_operand_object *dest_desc)
|
638 |
|
|
{
|
639 |
|
|
u16 reference_count;
|
640 |
|
|
union acpi_operand_object *next_object;
|
641 |
|
|
|
642 |
|
|
/* Save fields from destination that we don't want to overwrite */
|
643 |
|
|
|
644 |
|
|
reference_count = dest_desc->common.reference_count;
|
645 |
|
|
next_object = dest_desc->common.next_object;
|
646 |
|
|
|
647 |
|
|
/* Copy the entire source object over the destination object */
|
648 |
|
|
|
649 |
|
|
ACPI_MEMCPY((char *)dest_desc, (char *)source_desc,
|
650 |
|
|
sizeof(union acpi_operand_object));
|
651 |
|
|
|
652 |
|
|
/* Restore the saved fields */
|
653 |
|
|
|
654 |
|
|
dest_desc->common.reference_count = reference_count;
|
655 |
|
|
dest_desc->common.next_object = next_object;
|
656 |
|
|
|
657 |
|
|
/* New object is not static, regardless of source */
|
658 |
|
|
|
659 |
|
|
dest_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
|
660 |
|
|
|
661 |
|
|
/* Handle the objects with extra data */
|
662 |
|
|
|
663 |
|
|
switch (ACPI_GET_OBJECT_TYPE(dest_desc)) {
|
664 |
|
|
case ACPI_TYPE_BUFFER:
|
665 |
|
|
/*
|
666 |
|
|
* Allocate and copy the actual buffer if and only if:
|
667 |
|
|
* 1) There is a valid buffer pointer
|
668 |
|
|
* 2) The buffer has a length > 0
|
669 |
|
|
*/
|
670 |
|
|
if ((source_desc->buffer.pointer) &&
|
671 |
|
|
(source_desc->buffer.length)) {
|
672 |
|
|
dest_desc->buffer.pointer =
|
673 |
|
|
ACPI_ALLOCATE(source_desc->buffer.length);
|
674 |
|
|
if (!dest_desc->buffer.pointer) {
|
675 |
|
|
return (AE_NO_MEMORY);
|
676 |
|
|
}
|
677 |
|
|
|
678 |
|
|
/* Copy the actual buffer data */
|
679 |
|
|
|
680 |
|
|
ACPI_MEMCPY(dest_desc->buffer.pointer,
|
681 |
|
|
source_desc->buffer.pointer,
|
682 |
|
|
source_desc->buffer.length);
|
683 |
|
|
}
|
684 |
|
|
break;
|
685 |
|
|
|
686 |
|
|
case ACPI_TYPE_STRING:
|
687 |
|
|
/*
|
688 |
|
|
* Allocate and copy the actual string if and only if:
|
689 |
|
|
* 1) There is a valid string pointer
|
690 |
|
|
* (Pointer to a NULL string is allowed)
|
691 |
|
|
*/
|
692 |
|
|
if (source_desc->string.pointer) {
|
693 |
|
|
dest_desc->string.pointer =
|
694 |
|
|
ACPI_ALLOCATE((acpi_size) source_desc->string.
|
695 |
|
|
length + 1);
|
696 |
|
|
if (!dest_desc->string.pointer) {
|
697 |
|
|
return (AE_NO_MEMORY);
|
698 |
|
|
}
|
699 |
|
|
|
700 |
|
|
/* Copy the actual string data */
|
701 |
|
|
|
702 |
|
|
ACPI_MEMCPY(dest_desc->string.pointer,
|
703 |
|
|
source_desc->string.pointer,
|
704 |
|
|
(acpi_size) source_desc->string.length + 1);
|
705 |
|
|
}
|
706 |
|
|
break;
|
707 |
|
|
|
708 |
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
709 |
|
|
/*
|
710 |
|
|
* We copied the reference object, so we now must add a reference
|
711 |
|
|
* to the object pointed to by the reference
|
712 |
|
|
*/
|
713 |
|
|
acpi_ut_add_reference(source_desc->reference.object);
|
714 |
|
|
break;
|
715 |
|
|
|
716 |
|
|
case ACPI_TYPE_REGION:
|
717 |
|
|
/*
|
718 |
|
|
* We copied the Region Handler, so we now must add a reference
|
719 |
|
|
*/
|
720 |
|
|
if (dest_desc->region.handler) {
|
721 |
|
|
acpi_ut_add_reference(dest_desc->region.handler);
|
722 |
|
|
}
|
723 |
|
|
break;
|
724 |
|
|
|
725 |
|
|
default:
|
726 |
|
|
/* Nothing to do for other simple objects */
|
727 |
|
|
break;
|
728 |
|
|
}
|
729 |
|
|
|
730 |
|
|
return (AE_OK);
|
731 |
|
|
}
|
732 |
|
|
|
733 |
|
|
/*******************************************************************************
|
734 |
|
|
*
|
735 |
|
|
* FUNCTION: acpi_ut_copy_ielement_to_ielement
|
736 |
|
|
*
|
737 |
|
|
* PARAMETERS: acpi_pkg_callback
|
738 |
|
|
*
|
739 |
|
|
* RETURN: Status
|
740 |
|
|
*
|
741 |
|
|
* DESCRIPTION: Copy one package element to another package element
|
742 |
|
|
*
|
743 |
|
|
******************************************************************************/
|
744 |
|
|
|
745 |
|
|
static acpi_status
|
746 |
|
|
acpi_ut_copy_ielement_to_ielement(u8 object_type,
|
747 |
|
|
union acpi_operand_object *source_object,
|
748 |
|
|
union acpi_generic_state *state,
|
749 |
|
|
void *context)
|
750 |
|
|
{
|
751 |
|
|
acpi_status status = AE_OK;
|
752 |
|
|
u32 this_index;
|
753 |
|
|
union acpi_operand_object **this_target_ptr;
|
754 |
|
|
union acpi_operand_object *target_object;
|
755 |
|
|
|
756 |
|
|
ACPI_FUNCTION_ENTRY();
|
757 |
|
|
|
758 |
|
|
this_index = state->pkg.index;
|
759 |
|
|
this_target_ptr = (union acpi_operand_object **)
|
760 |
|
|
&state->pkg.dest_object->package.elements[this_index];
|
761 |
|
|
|
762 |
|
|
switch (object_type) {
|
763 |
|
|
case ACPI_COPY_TYPE_SIMPLE:
|
764 |
|
|
|
765 |
|
|
/* A null source object indicates a (legal) null package element */
|
766 |
|
|
|
767 |
|
|
if (source_object) {
|
768 |
|
|
/*
|
769 |
|
|
* This is a simple object, just copy it
|
770 |
|
|
*/
|
771 |
|
|
target_object =
|
772 |
|
|
acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE
|
773 |
|
|
(source_object));
|
774 |
|
|
if (!target_object) {
|
775 |
|
|
return (AE_NO_MEMORY);
|
776 |
|
|
}
|
777 |
|
|
|
778 |
|
|
status =
|
779 |
|
|
acpi_ut_copy_simple_object(source_object,
|
780 |
|
|
target_object);
|
781 |
|
|
if (ACPI_FAILURE(status)) {
|
782 |
|
|
goto error_exit;
|
783 |
|
|
}
|
784 |
|
|
|
785 |
|
|
*this_target_ptr = target_object;
|
786 |
|
|
} else {
|
787 |
|
|
/* Pass through a null element */
|
788 |
|
|
|
789 |
|
|
*this_target_ptr = NULL;
|
790 |
|
|
}
|
791 |
|
|
break;
|
792 |
|
|
|
793 |
|
|
case ACPI_COPY_TYPE_PACKAGE:
|
794 |
|
|
|
795 |
|
|
/*
|
796 |
|
|
* This object is a package - go down another nesting level
|
797 |
|
|
* Create and build the package object
|
798 |
|
|
*/
|
799 |
|
|
target_object =
|
800 |
|
|
acpi_ut_create_package_object(source_object->package.count);
|
801 |
|
|
if (!target_object) {
|
802 |
|
|
return (AE_NO_MEMORY);
|
803 |
|
|
}
|
804 |
|
|
|
805 |
|
|
target_object->common.flags = source_object->common.flags;
|
806 |
|
|
|
807 |
|
|
/* Pass the new package object back to the package walk routine */
|
808 |
|
|
|
809 |
|
|
state->pkg.this_target_obj = target_object;
|
810 |
|
|
|
811 |
|
|
/* Store the object pointer in the parent package object */
|
812 |
|
|
|
813 |
|
|
*this_target_ptr = target_object;
|
814 |
|
|
break;
|
815 |
|
|
|
816 |
|
|
default:
|
817 |
|
|
return (AE_BAD_PARAMETER);
|
818 |
|
|
}
|
819 |
|
|
|
820 |
|
|
return (status);
|
821 |
|
|
|
822 |
|
|
error_exit:
|
823 |
|
|
acpi_ut_remove_reference(target_object);
|
824 |
|
|
return (status);
|
825 |
|
|
}
|
826 |
|
|
|
827 |
|
|
/*******************************************************************************
|
828 |
|
|
*
|
829 |
|
|
* FUNCTION: acpi_ut_copy_ipackage_to_ipackage
|
830 |
|
|
*
|
831 |
|
|
* PARAMETERS: *source_obj - Pointer to the source package object
|
832 |
|
|
* *dest_obj - Where the internal object is returned
|
833 |
|
|
*
|
834 |
|
|
* RETURN: Status - the status of the call
|
835 |
|
|
*
|
836 |
|
|
* DESCRIPTION: This function is called to copy an internal package object
|
837 |
|
|
* into another internal package object.
|
838 |
|
|
*
|
839 |
|
|
******************************************************************************/
|
840 |
|
|
|
841 |
|
|
static acpi_status
|
842 |
|
|
acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj,
|
843 |
|
|
union acpi_operand_object *dest_obj,
|
844 |
|
|
struct acpi_walk_state *walk_state)
|
845 |
|
|
{
|
846 |
|
|
acpi_status status = AE_OK;
|
847 |
|
|
|
848 |
|
|
ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage);
|
849 |
|
|
|
850 |
|
|
dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj);
|
851 |
|
|
dest_obj->common.flags = source_obj->common.flags;
|
852 |
|
|
dest_obj->package.count = source_obj->package.count;
|
853 |
|
|
|
854 |
|
|
/*
|
855 |
|
|
* Create the object array and walk the source package tree
|
856 |
|
|
*/
|
857 |
|
|
dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size)
|
858 |
|
|
source_obj->package.
|
859 |
|
|
count +
|
860 |
|
|
1) * sizeof(void *));
|
861 |
|
|
if (!dest_obj->package.elements) {
|
862 |
|
|
ACPI_ERROR((AE_INFO, "Package allocation failure"));
|
863 |
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
864 |
|
|
}
|
865 |
|
|
|
866 |
|
|
/*
|
867 |
|
|
* Copy the package element-by-element by walking the package "tree".
|
868 |
|
|
* This handles nested packages of arbitrary depth.
|
869 |
|
|
*/
|
870 |
|
|
status = acpi_ut_walk_package_tree(source_obj, dest_obj,
|
871 |
|
|
acpi_ut_copy_ielement_to_ielement,
|
872 |
|
|
walk_state);
|
873 |
|
|
if (ACPI_FAILURE(status)) {
|
874 |
|
|
|
875 |
|
|
/* On failure, delete the destination package object */
|
876 |
|
|
|
877 |
|
|
acpi_ut_remove_reference(dest_obj);
|
878 |
|
|
}
|
879 |
|
|
|
880 |
|
|
return_ACPI_STATUS(status);
|
881 |
|
|
}
|
882 |
|
|
|
883 |
|
|
/*******************************************************************************
|
884 |
|
|
*
|
885 |
|
|
* FUNCTION: acpi_ut_copy_iobject_to_iobject
|
886 |
|
|
*
|
887 |
|
|
* PARAMETERS: walk_state - Current walk state
|
888 |
|
|
* source_desc - The internal object to be copied
|
889 |
|
|
* dest_desc - Where the copied object is returned
|
890 |
|
|
*
|
891 |
|
|
* RETURN: Status
|
892 |
|
|
*
|
893 |
|
|
* DESCRIPTION: Copy an internal object to a new internal object
|
894 |
|
|
*
|
895 |
|
|
******************************************************************************/
|
896 |
|
|
|
897 |
|
|
acpi_status
|
898 |
|
|
acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc,
|
899 |
|
|
union acpi_operand_object **dest_desc,
|
900 |
|
|
struct acpi_walk_state *walk_state)
|
901 |
|
|
{
|
902 |
|
|
acpi_status status = AE_OK;
|
903 |
|
|
|
904 |
|
|
ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject);
|
905 |
|
|
|
906 |
|
|
/* Create the top level object */
|
907 |
|
|
|
908 |
|
|
*dest_desc =
|
909 |
|
|
acpi_ut_create_internal_object(ACPI_GET_OBJECT_TYPE(source_desc));
|
910 |
|
|
if (!*dest_desc) {
|
911 |
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
912 |
|
|
}
|
913 |
|
|
|
914 |
|
|
/* Copy the object and possible subobjects */
|
915 |
|
|
|
916 |
|
|
if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_PACKAGE) {
|
917 |
|
|
status =
|
918 |
|
|
acpi_ut_copy_ipackage_to_ipackage(source_desc, *dest_desc,
|
919 |
|
|
walk_state);
|
920 |
|
|
} else {
|
921 |
|
|
status = acpi_ut_copy_simple_object(source_desc, *dest_desc);
|
922 |
|
|
}
|
923 |
|
|
|
924 |
|
|
return_ACPI_STATUS(status);
|
925 |
|
|
}
|