1151 lines
35 KiB
C
1151 lines
35 KiB
C
/******************************************************************************
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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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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __UTCOPY_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acnamesp.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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AcpiUtCopyIsimpleToEsimple (
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ACPI_OPERAND_OBJECT *InternalObject,
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ACPI_OBJECT *ExternalObject,
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UINT8 *DataSpace,
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ACPI_SIZE *BufferSpaceUsed);
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static ACPI_STATUS
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AcpiUtCopyIelementToIelement (
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UINT8 ObjectType,
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ACPI_OPERAND_OBJECT *SourceObject,
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ACPI_GENERIC_STATE *State,
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void *Context);
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static ACPI_STATUS
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AcpiUtCopyIpackageToEpackage (
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ACPI_OPERAND_OBJECT *InternalObject,
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UINT8 *Buffer,
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ACPI_SIZE *SpaceUsed);
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static ACPI_STATUS
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AcpiUtCopyEsimpleToIsimple(
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ACPI_OBJECT *UserObj,
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ACPI_OPERAND_OBJECT **ReturnObj);
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static ACPI_STATUS
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AcpiUtCopyEpackageToIpackage (
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ACPI_OBJECT *ExternalObject,
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ACPI_OPERAND_OBJECT **InternalObject);
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static ACPI_STATUS
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AcpiUtCopySimpleObject (
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ACPI_OPERAND_OBJECT *SourceDesc,
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ACPI_OPERAND_OBJECT *DestDesc);
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static ACPI_STATUS
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AcpiUtCopyIelementToEelement (
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UINT8 ObjectType,
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ACPI_OPERAND_OBJECT *SourceObject,
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ACPI_GENERIC_STATE *State,
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void *Context);
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static ACPI_STATUS
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AcpiUtCopyIpackageToIpackage (
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ACPI_OPERAND_OBJECT *SourceObj,
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ACPI_OPERAND_OBJECT *DestObj,
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ACPI_WALK_STATE *WalkState);
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtCopyIsimpleToEsimple
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*
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* PARAMETERS: InternalObject - Source object to be copied
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* ExternalObject - Where to return the copied object
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* DataSpace - Where object data is returned (such as
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* buffer and string data)
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* BufferSpaceUsed - Length of DataSpace 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 DataSpace 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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AcpiUtCopyIsimpleToEsimple (
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ACPI_OPERAND_OBJECT *InternalObject,
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ACPI_OBJECT *ExternalObject,
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UINT8 *DataSpace,
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ACPI_SIZE *BufferSpaceUsed)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE (UtCopyIsimpleToEsimple);
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*BufferSpaceUsed = 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 (!InternalObject)
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{
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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 (ExternalObject, 0, sizeof (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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ExternalObject->Type = InternalObject->Common.Type;
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/* However, only a limited number of external types are supported */
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switch (InternalObject->Common.Type)
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{
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case ACPI_TYPE_STRING:
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ExternalObject->String.Pointer = (char *) DataSpace;
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ExternalObject->String.Length = InternalObject->String.Length;
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*BufferSpaceUsed = ACPI_ROUND_UP_TO_NATIVE_WORD (
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(ACPI_SIZE) InternalObject->String.Length + 1);
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ACPI_MEMCPY ((void *) DataSpace,
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(void *) InternalObject->String.Pointer,
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(ACPI_SIZE) InternalObject->String.Length + 1);
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break;
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case ACPI_TYPE_BUFFER:
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ExternalObject->Buffer.Pointer = DataSpace;
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ExternalObject->Buffer.Length = InternalObject->Buffer.Length;
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*BufferSpaceUsed = ACPI_ROUND_UP_TO_NATIVE_WORD (
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InternalObject->String.Length);
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ACPI_MEMCPY ((void *) DataSpace,
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(void *) InternalObject->Buffer.Pointer,
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InternalObject->Buffer.Length);
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break;
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case ACPI_TYPE_INTEGER:
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ExternalObject->Integer.Value = InternalObject->Integer.Value;
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break;
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case ACPI_TYPE_LOCAL_REFERENCE:
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/* This is an object reference. */
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switch (InternalObject->Reference.Class)
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{
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case ACPI_REFCLASS_NAME:
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/*
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* For namepath, return the object handle ("reference")
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* We are referring to the namespace node
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*/
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ExternalObject->Reference.Handle =
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InternalObject->Reference.Node;
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ExternalObject->Reference.ActualType =
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AcpiNsGetType (InternalObject->Reference.Node);
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break;
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default:
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/* All other reference types are unsupported */
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return_ACPI_STATUS (AE_TYPE);
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}
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break;
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case ACPI_TYPE_PROCESSOR:
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ExternalObject->Processor.ProcId =
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InternalObject->Processor.ProcId;
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ExternalObject->Processor.PblkAddress =
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InternalObject->Processor.Address;
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ExternalObject->Processor.PblkLength =
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InternalObject->Processor.Length;
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break;
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case ACPI_TYPE_POWER:
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ExternalObject->PowerResource.SystemLevel =
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InternalObject->PowerResource.SystemLevel;
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ExternalObject->PowerResource.ResourceOrder =
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InternalObject->PowerResource.ResourceOrder;
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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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ACPI_ERROR ((AE_INFO,
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"Unsupported object type, cannot convert to external object: %s",
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AcpiUtGetTypeName (InternalObject->Common.Type)));
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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: AcpiUtCopyIelementToEelement
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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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AcpiUtCopyIelementToEelement (
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UINT8 ObjectType,
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ACPI_OPERAND_OBJECT *SourceObject,
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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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ACPI_PKG_INFO *Info = (ACPI_PKG_INFO *) Context;
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ACPI_SIZE ObjectSpace;
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UINT32 ThisIndex;
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ACPI_OBJECT *TargetObject;
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ACPI_FUNCTION_ENTRY ();
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ThisIndex = State->Pkg.Index;
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TargetObject = (ACPI_OBJECT *)
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&((ACPI_OBJECT *)(State->Pkg.DestObject))->Package.Elements[ThisIndex];
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switch (ObjectType)
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{
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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 = AcpiUtCopyIsimpleToEsimple (SourceObject,
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TargetObject, Info->FreeSpace, &ObjectSpace);
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if (ACPI_FAILURE (Status))
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{
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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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*/
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TargetObject->Type = ACPI_TYPE_PACKAGE;
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TargetObject->Package.Count = SourceObject->Package.Count;
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TargetObject->Package.Elements =
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ACPI_CAST_PTR (ACPI_OBJECT, Info->FreeSpace);
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/*
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* Pass the new package object back to the package walk routine
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*/
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State->Pkg.ThisTargetObj = TargetObject;
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/*
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* Save space for the array of objects (Package elements)
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* update the buffer length counter
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*/
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ObjectSpace = ACPI_ROUND_UP_TO_NATIVE_WORD (
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(ACPI_SIZE) TargetObject->Package.Count *
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sizeof (ACPI_OBJECT));
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break;
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default:
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return (AE_BAD_PARAMETER);
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}
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Info->FreeSpace += ObjectSpace;
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Info->Length += ObjectSpace;
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return (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiUtCopyIpackageToEpackage
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*
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* PARAMETERS: InternalObject - Pointer to the object we are returning
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* Buffer - Where the object is returned
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* SpaceUsed - Where the object length is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to place a package object in a user
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* buffer. A package object by definition contains other objects.
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*
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* The buffer is assumed to have sufficient space for the object.
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* The caller must have verified the buffer length needed using
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* the AcpiUtGetObjectSize function before calling this function.
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*
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******************************************************************************/
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static ACPI_STATUS
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AcpiUtCopyIpackageToEpackage (
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ACPI_OPERAND_OBJECT *InternalObject,
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UINT8 *Buffer,
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ACPI_SIZE *SpaceUsed)
|
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{
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ACPI_OBJECT *ExternalObject;
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ACPI_STATUS Status;
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ACPI_PKG_INFO Info;
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|
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ACPI_FUNCTION_TRACE (UtCopyIpackageToEpackage);
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|
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/*
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* First package at head of the buffer
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*/
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ExternalObject = ACPI_CAST_PTR (ACPI_OBJECT, Buffer);
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/*
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* Free space begins right after the first package
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*/
|
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Info.Length = ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
|
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Info.FreeSpace = Buffer + ACPI_ROUND_UP_TO_NATIVE_WORD (
|
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sizeof (ACPI_OBJECT));
|
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Info.ObjectSpace = 0;
|
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Info.NumPackages = 1;
|
|
|
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ExternalObject->Type = InternalObject->Common.Type;
|
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ExternalObject->Package.Count = InternalObject->Package.Count;
|
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ExternalObject->Package.Elements = ACPI_CAST_PTR (ACPI_OBJECT,
|
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Info.FreeSpace);
|
|
|
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/*
|
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* Leave room for an array of ACPI_OBJECTS in the buffer
|
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* and move the free space past it
|
|
*/
|
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Info.Length += (ACPI_SIZE) ExternalObject->Package.Count *
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ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
|
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Info.FreeSpace += ExternalObject->Package.Count *
|
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ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT));
|
|
|
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Status = AcpiUtWalkPackageTree (InternalObject, ExternalObject,
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AcpiUtCopyIelementToEelement, &Info);
|
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|
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*SpaceUsed = Info.Length;
|
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return_ACPI_STATUS (Status);
|
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}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
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* FUNCTION: AcpiUtCopyIobjectToEobject
|
|
*
|
|
* PARAMETERS: InternalObject - The internal object to be converted
|
|
* RetBuffer - 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
|
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AcpiUtCopyIobjectToEobject (
|
|
ACPI_OPERAND_OBJECT *InternalObject,
|
|
ACPI_BUFFER *RetBuffer)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
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ACPI_FUNCTION_TRACE (UtCopyIobjectToEobject);
|
|
|
|
|
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if (InternalObject->Common.Type == ACPI_TYPE_PACKAGE)
|
|
{
|
|
/*
|
|
* Package object: Copy all subobjects (including
|
|
* nested packages)
|
|
*/
|
|
Status = AcpiUtCopyIpackageToEpackage (InternalObject,
|
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RetBuffer->Pointer, &RetBuffer->Length);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Build a simple object (no nested objects)
|
|
*/
|
|
Status = AcpiUtCopyIsimpleToEsimple (InternalObject,
|
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ACPI_CAST_PTR (ACPI_OBJECT, RetBuffer->Pointer),
|
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ACPI_ADD_PTR (UINT8, RetBuffer->Pointer,
|
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ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (ACPI_OBJECT))),
|
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&RetBuffer->Length);
|
|
/*
|
|
* build simple does not include the object size in the length
|
|
* so we add it in here
|
|
*/
|
|
RetBuffer->Length += sizeof (ACPI_OBJECT);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopyEsimpleToIsimple
|
|
*
|
|
* PARAMETERS: ExternalObject - The external object to be converted
|
|
* RetInternalObject - 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!)
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiUtCopyEsimpleToIsimple (
|
|
ACPI_OBJECT *ExternalObject,
|
|
ACPI_OPERAND_OBJECT **RetInternalObject)
|
|
{
|
|
ACPI_OPERAND_OBJECT *InternalObject;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtCopyEsimpleToIsimple);
|
|
|
|
|
|
/*
|
|
* Simple types supported are: String, Buffer, Integer
|
|
*/
|
|
switch (ExternalObject->Type)
|
|
{
|
|
case ACPI_TYPE_STRING:
|
|
case ACPI_TYPE_BUFFER:
|
|
case ACPI_TYPE_INTEGER:
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
InternalObject = AcpiUtCreateInternalObject (
|
|
(UINT8) ExternalObject->Type);
|
|
if (!InternalObject)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
break;
|
|
|
|
case ACPI_TYPE_ANY: /* This is the case for a NULL object */
|
|
|
|
*RetInternalObject = NULL;
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
default:
|
|
/* All other types are not supported */
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Unsupported object type, cannot convert to internal object: %s",
|
|
AcpiUtGetTypeName (ExternalObject->Type)));
|
|
|
|
return_ACPI_STATUS (AE_SUPPORT);
|
|
}
|
|
|
|
|
|
/* Must COPY string and buffer contents */
|
|
|
|
switch (ExternalObject->Type)
|
|
{
|
|
case ACPI_TYPE_STRING:
|
|
|
|
InternalObject->String.Pointer =
|
|
ACPI_ALLOCATE_ZEROED ((ACPI_SIZE)
|
|
ExternalObject->String.Length + 1);
|
|
|
|
if (!InternalObject->String.Pointer)
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
ACPI_MEMCPY (InternalObject->String.Pointer,
|
|
ExternalObject->String.Pointer,
|
|
ExternalObject->String.Length);
|
|
|
|
InternalObject->String.Length = ExternalObject->String.Length;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
InternalObject->Buffer.Pointer =
|
|
ACPI_ALLOCATE_ZEROED (ExternalObject->Buffer.Length);
|
|
if (!InternalObject->Buffer.Pointer)
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
ACPI_MEMCPY (InternalObject->Buffer.Pointer,
|
|
ExternalObject->Buffer.Pointer,
|
|
ExternalObject->Buffer.Length);
|
|
|
|
InternalObject->Buffer.Length = ExternalObject->Buffer.Length;
|
|
|
|
/* Mark buffer data valid */
|
|
|
|
InternalObject->Buffer.Flags |= AOPOBJ_DATA_VALID;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_INTEGER:
|
|
|
|
InternalObject->Integer.Value = ExternalObject->Integer.Value;
|
|
break;
|
|
|
|
case ACPI_TYPE_LOCAL_REFERENCE:
|
|
|
|
/* TBD: should validate incoming handle */
|
|
|
|
InternalObject->Reference.Class = ACPI_REFCLASS_NAME;
|
|
InternalObject->Reference.Node = ExternalObject->Reference.Handle;
|
|
break;
|
|
|
|
default:
|
|
/* Other types can't get here */
|
|
break;
|
|
}
|
|
|
|
*RetInternalObject = InternalObject;
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
|
|
ErrorExit:
|
|
AcpiUtRemoveReference (InternalObject);
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopyEpackageToIpackage
|
|
*
|
|
* PARAMETERS: ExternalObject - The external object to be converted
|
|
* InternalObject - Where the internal object is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Copy an external package object to an internal package.
|
|
* Handles nested packages.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiUtCopyEpackageToIpackage (
|
|
ACPI_OBJECT *ExternalObject,
|
|
ACPI_OPERAND_OBJECT **InternalObject)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_OPERAND_OBJECT *PackageObject;
|
|
ACPI_OPERAND_OBJECT **PackageElements;
|
|
UINT32 i;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtCopyEpackageToIpackage);
|
|
|
|
|
|
/* Create the package object */
|
|
|
|
PackageObject = AcpiUtCreatePackageObject (ExternalObject->Package.Count);
|
|
if (!PackageObject)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
PackageElements = PackageObject->Package.Elements;
|
|
|
|
/*
|
|
* Recursive implementation. Probably ok, since nested external packages
|
|
* as parameters should be very rare.
|
|
*/
|
|
for (i = 0; i < ExternalObject->Package.Count; i++)
|
|
{
|
|
Status = AcpiUtCopyEobjectToIobject (
|
|
&ExternalObject->Package.Elements[i],
|
|
&PackageElements[i]);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
/* Truncate package and delete it */
|
|
|
|
PackageObject->Package.Count = i;
|
|
PackageElements[i] = NULL;
|
|
AcpiUtRemoveReference (PackageObject);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
/* Mark package data valid */
|
|
|
|
PackageObject->Package.Flags |= AOPOBJ_DATA_VALID;
|
|
|
|
*InternalObject = PackageObject;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopyEobjectToIobject
|
|
*
|
|
* PARAMETERS: ExternalObject - The external object to be converted
|
|
* InternalObject - Where the internal object is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Converts an external object to an internal object.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtCopyEobjectToIobject (
|
|
ACPI_OBJECT *ExternalObject,
|
|
ACPI_OPERAND_OBJECT **InternalObject)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtCopyEobjectToIobject);
|
|
|
|
|
|
if (ExternalObject->Type == ACPI_TYPE_PACKAGE)
|
|
{
|
|
Status = AcpiUtCopyEpackageToIpackage (ExternalObject, InternalObject);
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Build a simple object (no nested objects)
|
|
*/
|
|
Status = AcpiUtCopyEsimpleToIsimple (ExternalObject, InternalObject);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopySimpleObject
|
|
*
|
|
* PARAMETERS: SourceDesc - The internal object to be copied
|
|
* DestDesc - New target object
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Simple copy of one internal object to another. Reference count
|
|
* of the destination object is preserved.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiUtCopySimpleObject (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT *DestDesc)
|
|
{
|
|
UINT16 ReferenceCount;
|
|
ACPI_OPERAND_OBJECT *NextObject;
|
|
ACPI_STATUS Status;
|
|
ACPI_SIZE CopySize;
|
|
|
|
|
|
/* Save fields from destination that we don't want to overwrite */
|
|
|
|
ReferenceCount = DestDesc->Common.ReferenceCount;
|
|
NextObject = DestDesc->Common.NextObject;
|
|
|
|
/*
|
|
* Copy the entire source object over the destination object.
|
|
* Note: Source can be either an operand object or namespace node.
|
|
*/
|
|
CopySize = sizeof (ACPI_OPERAND_OBJECT);
|
|
if (ACPI_GET_DESCRIPTOR_TYPE (SourceDesc) == ACPI_DESC_TYPE_NAMED)
|
|
{
|
|
CopySize = sizeof (ACPI_NAMESPACE_NODE);
|
|
}
|
|
|
|
ACPI_MEMCPY (ACPI_CAST_PTR (char, DestDesc),
|
|
ACPI_CAST_PTR (char, SourceDesc), CopySize);
|
|
|
|
/* Restore the saved fields */
|
|
|
|
DestDesc->Common.ReferenceCount = ReferenceCount;
|
|
DestDesc->Common.NextObject = NextObject;
|
|
|
|
/* New object is not static, regardless of source */
|
|
|
|
DestDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER;
|
|
|
|
/* Handle the objects with extra data */
|
|
|
|
switch (DestDesc->Common.Type)
|
|
{
|
|
case ACPI_TYPE_BUFFER:
|
|
/*
|
|
* Allocate and copy the actual buffer if and only if:
|
|
* 1) There is a valid buffer pointer
|
|
* 2) The buffer has a length > 0
|
|
*/
|
|
if ((SourceDesc->Buffer.Pointer) &&
|
|
(SourceDesc->Buffer.Length))
|
|
{
|
|
DestDesc->Buffer.Pointer =
|
|
ACPI_ALLOCATE (SourceDesc->Buffer.Length);
|
|
if (!DestDesc->Buffer.Pointer)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Copy the actual buffer data */
|
|
|
|
ACPI_MEMCPY (DestDesc->Buffer.Pointer,
|
|
SourceDesc->Buffer.Pointer, SourceDesc->Buffer.Length);
|
|
}
|
|
break;
|
|
|
|
case ACPI_TYPE_STRING:
|
|
/*
|
|
* Allocate and copy the actual string if and only if:
|
|
* 1) There is a valid string pointer
|
|
* (Pointer to a NULL string is allowed)
|
|
*/
|
|
if (SourceDesc->String.Pointer)
|
|
{
|
|
DestDesc->String.Pointer =
|
|
ACPI_ALLOCATE ((ACPI_SIZE) SourceDesc->String.Length + 1);
|
|
if (!DestDesc->String.Pointer)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Copy the actual string data */
|
|
|
|
ACPI_MEMCPY (DestDesc->String.Pointer, SourceDesc->String.Pointer,
|
|
(ACPI_SIZE) SourceDesc->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
|
|
*
|
|
* DDBHandle reference (from Load/LoadTable) is a special reference,
|
|
* it does not have a Reference.Object, so does not need to
|
|
* increase the reference count
|
|
*/
|
|
if (SourceDesc->Reference.Class == ACPI_REFCLASS_TABLE)
|
|
{
|
|
break;
|
|
}
|
|
|
|
AcpiUtAddReference (SourceDesc->Reference.Object);
|
|
break;
|
|
|
|
case ACPI_TYPE_REGION:
|
|
/*
|
|
* We copied the Region Handler, so we now must add a reference
|
|
*/
|
|
if (DestDesc->Region.Handler)
|
|
{
|
|
AcpiUtAddReference (DestDesc->Region.Handler);
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* For Mutex and Event objects, we cannot simply copy the underlying
|
|
* OS object. We must create a new one.
|
|
*/
|
|
case ACPI_TYPE_MUTEX:
|
|
|
|
Status = AcpiOsCreateMutex (&DestDesc->Mutex.OsMutex);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
break;
|
|
|
|
case ACPI_TYPE_EVENT:
|
|
|
|
Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
|
|
&DestDesc->Event.OsSemaphore);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
/* Nothing to do for other simple objects */
|
|
break;
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopyIelementToIelement
|
|
*
|
|
* PARAMETERS: ACPI_PKG_CALLBACK
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Copy one package element to another package element
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiUtCopyIelementToIelement (
|
|
UINT8 ObjectType,
|
|
ACPI_OPERAND_OBJECT *SourceObject,
|
|
ACPI_GENERIC_STATE *State,
|
|
void *Context)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
UINT32 ThisIndex;
|
|
ACPI_OPERAND_OBJECT **ThisTargetPtr;
|
|
ACPI_OPERAND_OBJECT *TargetObject;
|
|
|
|
|
|
ACPI_FUNCTION_ENTRY ();
|
|
|
|
|
|
ThisIndex = State->Pkg.Index;
|
|
ThisTargetPtr = (ACPI_OPERAND_OBJECT **)
|
|
&State->Pkg.DestObject->Package.Elements[ThisIndex];
|
|
|
|
switch (ObjectType)
|
|
{
|
|
case ACPI_COPY_TYPE_SIMPLE:
|
|
|
|
/* A null source object indicates a (legal) null package element */
|
|
|
|
if (SourceObject)
|
|
{
|
|
/*
|
|
* This is a simple object, just copy it
|
|
*/
|
|
TargetObject = AcpiUtCreateInternalObject (
|
|
SourceObject->Common.Type);
|
|
if (!TargetObject)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
Status = AcpiUtCopySimpleObject (SourceObject, TargetObject);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto ErrorExit;
|
|
}
|
|
|
|
*ThisTargetPtr = TargetObject;
|
|
}
|
|
else
|
|
{
|
|
/* Pass through a null element */
|
|
|
|
*ThisTargetPtr = NULL;
|
|
}
|
|
break;
|
|
|
|
|
|
case ACPI_COPY_TYPE_PACKAGE:
|
|
|
|
/*
|
|
* This object is a package - go down another nesting level
|
|
* Create and build the package object
|
|
*/
|
|
TargetObject = AcpiUtCreatePackageObject (SourceObject->Package.Count);
|
|
if (!TargetObject)
|
|
{
|
|
return (AE_NO_MEMORY);
|
|
}
|
|
|
|
TargetObject->Common.Flags = SourceObject->Common.Flags;
|
|
|
|
/* Pass the new package object back to the package walk routine */
|
|
|
|
State->Pkg.ThisTargetObj = TargetObject;
|
|
|
|
/* Store the object pointer in the parent package object */
|
|
|
|
*ThisTargetPtr = TargetObject;
|
|
break;
|
|
|
|
|
|
default:
|
|
return (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
return (Status);
|
|
|
|
ErrorExit:
|
|
AcpiUtRemoveReference (TargetObject);
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopyIpackageToIpackage
|
|
*
|
|
* PARAMETERS: SourceObj - Pointer to the source package object
|
|
* DestObj - Where the internal object is returned
|
|
* WalkState - Current Walk state descriptor
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to copy an internal package object
|
|
* into another internal package object.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_STATUS
|
|
AcpiUtCopyIpackageToIpackage (
|
|
ACPI_OPERAND_OBJECT *SourceObj,
|
|
ACPI_OPERAND_OBJECT *DestObj,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtCopyIpackageToIpackage);
|
|
|
|
|
|
DestObj->Common.Type = SourceObj->Common.Type;
|
|
DestObj->Common.Flags = SourceObj->Common.Flags;
|
|
DestObj->Package.Count = SourceObj->Package.Count;
|
|
|
|
/*
|
|
* Create the object array and walk the source package tree
|
|
*/
|
|
DestObj->Package.Elements = ACPI_ALLOCATE_ZEROED (
|
|
((ACPI_SIZE) SourceObj->Package.Count + 1) *
|
|
sizeof (void *));
|
|
if (!DestObj->Package.Elements)
|
|
{
|
|
ACPI_ERROR ((AE_INFO, "Package allocation failure"));
|
|
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 = AcpiUtWalkPackageTree (SourceObj, DestObj,
|
|
AcpiUtCopyIelementToIelement, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
/* On failure, delete the destination package object */
|
|
|
|
AcpiUtRemoveReference (DestObj);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtCopyIobjectToIobject
|
|
*
|
|
* PARAMETERS: SourceDesc - The internal object to be copied
|
|
* DestDesc - Where the copied object is returned
|
|
* WalkState - Current walk state
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Copy an internal object to a new internal object
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtCopyIobjectToIobject (
|
|
ACPI_OPERAND_OBJECT *SourceDesc,
|
|
ACPI_OPERAND_OBJECT **DestDesc,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtCopyIobjectToIobject);
|
|
|
|
|
|
/* Create the top level object */
|
|
|
|
*DestDesc = AcpiUtCreateInternalObject (SourceDesc->Common.Type);
|
|
if (!*DestDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Copy the object and possible subobjects */
|
|
|
|
if (SourceDesc->Common.Type == ACPI_TYPE_PACKAGE)
|
|
{
|
|
Status = AcpiUtCopyIpackageToIpackage (SourceDesc, *DestDesc,
|
|
WalkState);
|
|
}
|
|
else
|
|
{
|
|
Status = AcpiUtCopySimpleObject (SourceDesc, *DestDesc);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|