704 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			704 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /******************************************************************************
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|  *
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|  * Module Name: nsrepair2 - Repair for objects returned by specific
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|  *                          predefined methods
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|  *
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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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| 
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| #define __NSREPAIR2_C__
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| 
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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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| 
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| #define _COMPONENT          ACPI_NAMESPACE
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|         ACPI_MODULE_NAME    ("nsrepair2")
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| 
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| 
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| /*
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|  * Information structure and handler for ACPI predefined names that can
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|  * be repaired on a per-name basis.
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|  */
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| typedef
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| ACPI_STATUS (*ACPI_REPAIR_FUNCTION) (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr);
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| 
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| typedef struct acpi_repair_info
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| {
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|     char                    Name[ACPI_NAME_SIZE];
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|     ACPI_REPAIR_FUNCTION    RepairFunction;
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| 
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| } ACPI_REPAIR_INFO;
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| 
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| 
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| /* Local prototypes */
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| 
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| static const ACPI_REPAIR_INFO *
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| AcpiNsMatchRepairableName (
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|     ACPI_NAMESPACE_NODE     *Node);
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_ALR (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr);
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_FDE (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr);
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_PSS (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr);
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_TSS (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr);
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| 
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| static ACPI_STATUS
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| AcpiNsCheckSortedList (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     *ReturnObject,
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|     UINT32                  ExpectedCount,
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|     UINT32                  SortIndex,
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|     UINT8                   SortDirection,
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|     char                    *SortKeyName);
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| 
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| static void
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| AcpiNsSortList (
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|     ACPI_OPERAND_OBJECT     **Elements,
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|     UINT32                  Count,
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|     UINT32                  Index,
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|     UINT8                   SortDirection);
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| 
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| /* Values for SortDirection above */
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| 
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| #define ACPI_SORT_ASCENDING     0
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| #define ACPI_SORT_DESCENDING    1
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| 
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| 
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| /*
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|  * This table contains the names of the predefined methods for which we can
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|  * perform more complex repairs.
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|  *
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|  * As necessary:
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|  *
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|  * _ALR: Sort the list ascending by AmbientIlluminance
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|  * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs
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|  * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs
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|  * _PSS: Sort the list descending by Power
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|  * _TSS: Sort the list descending by Power
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|  *
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|  * Names that must be packages, but cannot be sorted:
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|  *
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|  * _BCL: Values are tied to the Package index where they appear, and cannot
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|  * be moved or sorted. These index values are used for _BQC and _BCM.
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|  * However, we can fix the case where a buffer is returned, by converting
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|  * it to a Package of integers.
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|  */
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| static const ACPI_REPAIR_INFO       AcpiNsRepairableNames[] =
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| {
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|     {"_ALR", AcpiNsRepair_ALR},
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|     {"_FDE", AcpiNsRepair_FDE},
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|     {"_GTM", AcpiNsRepair_FDE},     /* _GTM has same repair as _FDE */
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|     {"_PSS", AcpiNsRepair_PSS},
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|     {"_TSS", AcpiNsRepair_TSS},
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|     {{0,0,0,0}, NULL}               /* Table terminator */
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| };
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| 
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| 
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| #define ACPI_FDE_FIELD_COUNT        5
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| #define ACPI_FDE_BYTE_BUFFER_SIZE   5
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| #define ACPI_FDE_DWORD_BUFFER_SIZE  (ACPI_FDE_FIELD_COUNT * sizeof (UINT32))
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| 
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| 
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| /******************************************************************************
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|  *
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|  * FUNCTION:    AcpiNsComplexRepairs
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|  *
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|  * PARAMETERS:  Data                - Pointer to validation data structure
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|  *              Node                - Namespace node for the method/object
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|  *              ValidateStatus      - Original status of earlier validation
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|  *              ReturnObjectPtr     - Pointer to the object returned from the
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|  *                                    evaluation of a method or object
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|  *
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|  * RETURN:      Status. AE_OK if repair was successful. If name is not
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|  *              matched, ValidateStatus is returned.
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|  *
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|  * DESCRIPTION: Attempt to repair/convert a return object of a type that was
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|  *              not expected.
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|  *
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|  *****************************************************************************/
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| 
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| ACPI_STATUS
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| AcpiNsComplexRepairs (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_NAMESPACE_NODE     *Node,
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|     ACPI_STATUS             ValidateStatus,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr)
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| {
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|     const ACPI_REPAIR_INFO  *Predefined;
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|     ACPI_STATUS             Status;
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| 
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| 
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|     /* Check if this name is in the list of repairable names */
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| 
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|     Predefined = AcpiNsMatchRepairableName (Node);
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|     if (!Predefined)
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|     {
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|         return (ValidateStatus);
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|     }
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| 
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|     Status = Predefined->RepairFunction (Data, ReturnObjectPtr);
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|     return (Status);
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| }
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| 
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| 
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| /******************************************************************************
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|  *
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|  * FUNCTION:    AcpiNsMatchRepairableName
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|  *
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|  * PARAMETERS:  Node                - Namespace node for the method/object
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|  *
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|  * RETURN:      Pointer to entry in repair table. NULL indicates not found.
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|  *
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|  * DESCRIPTION: Check an object name against the repairable object list.
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|  *
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|  *****************************************************************************/
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| 
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| static const ACPI_REPAIR_INFO *
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| AcpiNsMatchRepairableName (
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|     ACPI_NAMESPACE_NODE     *Node)
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| {
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|     const ACPI_REPAIR_INFO  *ThisName;
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| 
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| 
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|     /* Search info table for a repairable predefined method/object name */
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| 
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|     ThisName = AcpiNsRepairableNames;
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|     while (ThisName->RepairFunction)
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|     {
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|         if (ACPI_COMPARE_NAME (Node->Name.Ascii, ThisName->Name))
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|         {
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|             return (ThisName);
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|         }
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|         ThisName++;
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|     }
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| 
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|     return (NULL); /* Not found */
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| }
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| 
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| 
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| /******************************************************************************
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|  *
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|  * FUNCTION:    AcpiNsRepair_ALR
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|  *
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|  * PARAMETERS:  Data                - Pointer to validation data structure
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|  *              ReturnObjectPtr     - Pointer to the object returned from the
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|  *                                    evaluation of a method or object
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|  *
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|  * RETURN:      Status. AE_OK if object is OK or was repaired successfully
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|  *
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|  * DESCRIPTION: Repair for the _ALR object. If necessary, sort the object list
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|  *              ascending by the ambient illuminance values.
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|  *
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|  *****************************************************************************/
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_ALR (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr)
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| {
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|     ACPI_OPERAND_OBJECT     *ReturnObject = *ReturnObjectPtr;
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|     ACPI_STATUS             Status;
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| 
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| 
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|     Status = AcpiNsCheckSortedList (Data, ReturnObject, 2, 1,
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|                 ACPI_SORT_ASCENDING, "AmbientIlluminance");
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| 
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|     return (Status);
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| }
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| 
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| 
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| /******************************************************************************
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|  *
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|  * FUNCTION:    AcpiNsRepair_FDE
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|  *
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|  * PARAMETERS:  Data                - Pointer to validation data structure
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|  *              ReturnObjectPtr     - Pointer to the object returned from the
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|  *                                    evaluation of a method or object
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|  *
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|  * RETURN:      Status. AE_OK if object is OK or was repaired successfully
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|  *
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|  * DESCRIPTION: Repair for the _FDE and _GTM objects. The expected return
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|  *              value is a Buffer of 5 DWORDs. This function repairs a common
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|  *              problem where the return value is a Buffer of BYTEs, not
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|  *              DWORDs.
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|  *
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|  *****************************************************************************/
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_FDE (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr)
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| {
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|     ACPI_OPERAND_OBJECT     *ReturnObject = *ReturnObjectPtr;
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|     ACPI_OPERAND_OBJECT     *BufferObject;
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|     UINT8                   *ByteBuffer;
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|     UINT32                  *DwordBuffer;
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|     UINT32                  i;
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| 
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| 
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|     ACPI_FUNCTION_NAME (NsRepair_FDE);
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| 
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| 
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|     switch (ReturnObject->Common.Type)
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|     {
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|     case ACPI_TYPE_BUFFER:
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| 
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|         /* This is the expected type. Length should be (at least) 5 DWORDs */
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| 
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|         if (ReturnObject->Buffer.Length >= ACPI_FDE_DWORD_BUFFER_SIZE)
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|         {
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|             return (AE_OK);
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|         }
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| 
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|         /* We can only repair if we have exactly 5 BYTEs */
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| 
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|         if (ReturnObject->Buffer.Length != ACPI_FDE_BYTE_BUFFER_SIZE)
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|         {
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|             ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
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|                 "Incorrect return buffer length %u, expected %u",
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|                 ReturnObject->Buffer.Length, ACPI_FDE_DWORD_BUFFER_SIZE));
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| 
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|             return (AE_AML_OPERAND_TYPE);
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|         }
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| 
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|         /* Create the new (larger) buffer object */
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| 
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|         BufferObject = AcpiUtCreateBufferObject (ACPI_FDE_DWORD_BUFFER_SIZE);
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|         if (!BufferObject)
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|         {
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|             return (AE_NO_MEMORY);
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|         }
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| 
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|         /* Expand each byte to a DWORD */
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| 
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|         ByteBuffer = ReturnObject->Buffer.Pointer;
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|         DwordBuffer = ACPI_CAST_PTR (UINT32, BufferObject->Buffer.Pointer);
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| 
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|         for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++)
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|         {
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|             *DwordBuffer = (UINT32) *ByteBuffer;
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|             DwordBuffer++;
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|             ByteBuffer++;
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|         }
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| 
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|         ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR,
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|             "%s Expanded Byte Buffer to expected DWord Buffer\n",
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|             Data->Pathname));
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|         break;
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| 
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|     default:
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|         return (AE_AML_OPERAND_TYPE);
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|     }
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| 
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|     /* Delete the original return object, return the new buffer object */
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| 
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|     AcpiUtRemoveReference (ReturnObject);
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|     *ReturnObjectPtr = BufferObject;
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| 
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|     Data->Flags |= ACPI_OBJECT_REPAIRED;
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|     return (AE_OK);
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| }
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| 
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| 
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| /******************************************************************************
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|  *
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|  * FUNCTION:    AcpiNsRepair_TSS
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|  *
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|  * PARAMETERS:  Data                - Pointer to validation data structure
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|  *              ReturnObjectPtr     - Pointer to the object returned from the
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|  *                                    evaluation of a method or object
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|  *
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|  * RETURN:      Status. AE_OK if object is OK or was repaired successfully
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|  *
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|  * DESCRIPTION: Repair for the _TSS object. If necessary, sort the object list
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|  *              descending by the power dissipation values.
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|  *
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|  *****************************************************************************/
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| 
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| static ACPI_STATUS
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| AcpiNsRepair_TSS (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr)
 | |
| {
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|     ACPI_OPERAND_OBJECT     *ReturnObject = *ReturnObjectPtr;
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|     ACPI_STATUS             Status;
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| 
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| 
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|     Status = AcpiNsCheckSortedList (Data, ReturnObject, 5, 1,
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|                 ACPI_SORT_DESCENDING, "PowerDissipation");
 | |
| 
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|     return (Status);
 | |
| }
 | |
| 
 | |
| 
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| /******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiNsRepair_PSS
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|  *
 | |
|  * PARAMETERS:  Data                - Pointer to validation data structure
 | |
|  *              ReturnObjectPtr     - Pointer to the object returned from the
 | |
|  *                                    evaluation of a method or object
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|  *
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|  * RETURN:      Status. AE_OK if object is OK or was repaired successfully
 | |
|  *
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|  * DESCRIPTION: Repair for the _PSS object. If necessary, sort the object list
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|  *              by the CPU frequencies. Check that the power dissipation values
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|  *              are all proportional to CPU frequency (i.e., sorting by
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|  *              frequency should be the same as sorting by power.)
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|  *
 | |
|  *****************************************************************************/
 | |
| 
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| static ACPI_STATUS
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| AcpiNsRepair_PSS (
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|     ACPI_PREDEFINED_DATA    *Data,
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|     ACPI_OPERAND_OBJECT     **ReturnObjectPtr)
 | |
| {
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|     ACPI_OPERAND_OBJECT     *ReturnObject = *ReturnObjectPtr;
 | |
|     ACPI_OPERAND_OBJECT     **OuterElements;
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|     UINT32                  OuterElementCount;
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|     ACPI_OPERAND_OBJECT     **Elements;
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|     ACPI_OPERAND_OBJECT     *ObjDesc;
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|     UINT32                  PreviousValue;
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|     ACPI_STATUS             Status;
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|     UINT32                  i;
 | |
| 
 | |
| 
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|     /*
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|      * Entries (sub-packages) in the _PSS Package must be sorted by power
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|      * dissipation, in descending order. If it appears that the list is
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|      * incorrectly sorted, sort it. We sort by CpuFrequency, since this
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|      * should be proportional to the power.
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|      */
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|     Status =AcpiNsCheckSortedList (Data, ReturnObject, 6, 0,
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|                 ACPI_SORT_DESCENDING, "CpuFrequency");
 | |
|     if (ACPI_FAILURE (Status))
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|     {
 | |
|         return (Status);
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * We now know the list is correctly sorted by CPU frequency. Check if
 | |
|      * the power dissipation values are proportional.
 | |
|      */
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|     PreviousValue = ACPI_UINT32_MAX;
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|     OuterElements = ReturnObject->Package.Elements;
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|     OuterElementCount = ReturnObject->Package.Count;
 | |
| 
 | |
|     for (i = 0; i < OuterElementCount; i++)
 | |
|     {
 | |
|         Elements = (*OuterElements)->Package.Elements;
 | |
|         ObjDesc = Elements[1]; /* Index1 = PowerDissipation */
 | |
| 
 | |
|         if ((UINT32) ObjDesc->Integer.Value > PreviousValue)
 | |
|         {
 | |
|             ACPI_WARN_PREDEFINED ((AE_INFO, Data->Pathname, Data->NodeFlags,
 | |
|                 "SubPackage[%u,%u] - suspicious power dissipation values",
 | |
|                 i-1, i));
 | |
|         }
 | |
| 
 | |
|         PreviousValue = (UINT32) ObjDesc->Integer.Value;
 | |
|         OuterElements++;
 | |
|     }
 | |
| 
 | |
|     return (AE_OK);
 | |
| }
 | |
| 
 | |
| 
 | |
| /******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiNsCheckSortedList
 | |
|  *
 | |
|  * PARAMETERS:  Data                - Pointer to validation data structure
 | |
|  *              ReturnObject        - Pointer to the top-level returned object
 | |
|  *              ExpectedCount       - Minimum length of each sub-package
 | |
|  *              SortIndex           - Sub-package entry to sort on
 | |
|  *              SortDirection       - Ascending or descending
 | |
|  *              SortKeyName         - Name of the SortIndex field
 | |
|  *
 | |
|  * RETURN:      Status. AE_OK if the list is valid and is sorted correctly or
 | |
|  *              has been repaired by sorting the list.
 | |
|  *
 | |
|  * DESCRIPTION: Check if the package list is valid and sorted correctly by the
 | |
|  *              SortIndex. If not, then sort the list.
 | |
|  *
 | |
|  *****************************************************************************/
 | |
| 
 | |
| static ACPI_STATUS
 | |
| AcpiNsCheckSortedList (
 | |
|     ACPI_PREDEFINED_DATA    *Data,
 | |
|     ACPI_OPERAND_OBJECT     *ReturnObject,
 | |
|     UINT32                  ExpectedCount,
 | |
|     UINT32                  SortIndex,
 | |
|     UINT8                   SortDirection,
 | |
|     char                    *SortKeyName)
 | |
| {
 | |
|     UINT32                  OuterElementCount;
 | |
|     ACPI_OPERAND_OBJECT     **OuterElements;
 | |
|     ACPI_OPERAND_OBJECT     **Elements;
 | |
|     ACPI_OPERAND_OBJECT     *ObjDesc;
 | |
|     UINT32                  i;
 | |
|     UINT32                  PreviousValue;
 | |
| 
 | |
| 
 | |
|     ACPI_FUNCTION_NAME (NsCheckSortedList);
 | |
| 
 | |
| 
 | |
|     /* The top-level object must be a package */
 | |
| 
 | |
|     if (ReturnObject->Common.Type != ACPI_TYPE_PACKAGE)
 | |
|     {
 | |
|         return (AE_AML_OPERAND_TYPE);
 | |
|     }
 | |
| 
 | |
|     /*
 | |
|      * NOTE: assumes list of sub-packages contains no NULL elements.
 | |
|      * Any NULL elements should have been removed by earlier call
 | |
|      * to AcpiNsRemoveNullElements.
 | |
|      */
 | |
|     OuterElements = ReturnObject->Package.Elements;
 | |
|     OuterElementCount = ReturnObject->Package.Count;
 | |
|     if (!OuterElementCount)
 | |
|     {
 | |
|         return (AE_AML_PACKAGE_LIMIT);
 | |
|     }
 | |
| 
 | |
|     PreviousValue = 0;
 | |
|     if (SortDirection == ACPI_SORT_DESCENDING)
 | |
|     {
 | |
|         PreviousValue = ACPI_UINT32_MAX;
 | |
|     }
 | |
| 
 | |
|     /* Examine each subpackage */
 | |
| 
 | |
|     for (i = 0; i < OuterElementCount; i++)
 | |
|     {
 | |
|         /* Each element of the top-level package must also be a package */
 | |
| 
 | |
|         if ((*OuterElements)->Common.Type != ACPI_TYPE_PACKAGE)
 | |
|         {
 | |
|             return (AE_AML_OPERAND_TYPE);
 | |
|         }
 | |
| 
 | |
|         /* Each sub-package must have the minimum length */
 | |
| 
 | |
|         if ((*OuterElements)->Package.Count < ExpectedCount)
 | |
|         {
 | |
|             return (AE_AML_PACKAGE_LIMIT);
 | |
|         }
 | |
| 
 | |
|         Elements = (*OuterElements)->Package.Elements;
 | |
|         ObjDesc = Elements[SortIndex];
 | |
| 
 | |
|         if (ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
 | |
|         {
 | |
|             return (AE_AML_OPERAND_TYPE);
 | |
|         }
 | |
| 
 | |
|         /*
 | |
|          * The list must be sorted in the specified order. If we detect a
 | |
|          * discrepancy, sort the entire list.
 | |
|          */
 | |
|         if (((SortDirection == ACPI_SORT_ASCENDING) &&
 | |
|                 (ObjDesc->Integer.Value < PreviousValue)) ||
 | |
|             ((SortDirection == ACPI_SORT_DESCENDING) &&
 | |
|                 (ObjDesc->Integer.Value > PreviousValue)))
 | |
|         {
 | |
|             AcpiNsSortList (ReturnObject->Package.Elements,
 | |
|                 OuterElementCount, SortIndex, SortDirection);
 | |
| 
 | |
|             Data->Flags |= ACPI_OBJECT_REPAIRED;
 | |
| 
 | |
|             ACPI_DEBUG_PRINT ((ACPI_DB_REPAIR,
 | |
|                 "%s: Repaired unsorted list - now sorted by %s\n",
 | |
|                 Data->Pathname, SortKeyName));
 | |
|             return (AE_OK);
 | |
|         }
 | |
| 
 | |
|         PreviousValue = (UINT32) ObjDesc->Integer.Value;
 | |
|         OuterElements++;
 | |
|     }
 | |
| 
 | |
|     return (AE_OK);
 | |
| }
 | |
| 
 | |
| 
 | |
| /******************************************************************************
 | |
|  *
 | |
|  * FUNCTION:    AcpiNsSortList
 | |
|  *
 | |
|  * PARAMETERS:  Elements            - Package object element list
 | |
|  *              Count               - Element count for above
 | |
|  *              Index               - Sort by which package element
 | |
|  *              SortDirection       - Ascending or Descending sort
 | |
|  *
 | |
|  * RETURN:      None
 | |
|  *
 | |
|  * DESCRIPTION: Sort the objects that are in a package element list.
 | |
|  *
 | |
|  * NOTE: Assumes that all NULL elements have been removed from the package,
 | |
|  *       and that all elements have been verified to be of type Integer.
 | |
|  *
 | |
|  *****************************************************************************/
 | |
| 
 | |
| static void
 | |
| AcpiNsSortList (
 | |
|     ACPI_OPERAND_OBJECT     **Elements,
 | |
|     UINT32                  Count,
 | |
|     UINT32                  Index,
 | |
|     UINT8                   SortDirection)
 | |
| {
 | |
|     ACPI_OPERAND_OBJECT     *ObjDesc1;
 | |
|     ACPI_OPERAND_OBJECT     *ObjDesc2;
 | |
|     ACPI_OPERAND_OBJECT     *TempObj;
 | |
|     UINT32                  i;
 | |
|     UINT32                  j;
 | |
| 
 | |
| 
 | |
|     /* Simple bubble sort */
 | |
| 
 | |
|     for (i = 1; i < Count; i++)
 | |
|     {
 | |
|         for (j = (Count - 1); j >= i; j--)
 | |
|         {
 | |
|             ObjDesc1 = Elements[j-1]->Package.Elements[Index];
 | |
|             ObjDesc2 = Elements[j]->Package.Elements[Index];
 | |
| 
 | |
|             if (((SortDirection == ACPI_SORT_ASCENDING) &&
 | |
|                     (ObjDesc1->Integer.Value > ObjDesc2->Integer.Value)) ||
 | |
| 
 | |
|                 ((SortDirection == ACPI_SORT_DESCENDING) &&
 | |
|                     (ObjDesc1->Integer.Value < ObjDesc2->Integer.Value)))
 | |
|             {
 | |
|                 TempObj = Elements[j-1];
 | |
|                 Elements[j-1] = Elements[j];
 | |
|                 Elements[j] = TempObj;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| }
 | 
