forked from KolibriOS/kolibrios
624 lines
21 KiB
C
624 lines
21 KiB
C
/******************************************************************************
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*
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* Module Name: dswload - Dispatcher first pass namespace load callbacks
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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 - 2011, 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 __DSWLOAD_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acparser.h"
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#include "amlcode.h"
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#include "acdispat.h"
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#include "acinterp.h"
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#include "acnamesp.h"
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#ifdef ACPI_ASL_COMPILER
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#include "acdisasm.h"
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#endif
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#define _COMPONENT ACPI_DISPATCHER
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ACPI_MODULE_NAME ("dswload")
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsInitCallbacks
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*
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* PARAMETERS: WalkState - Current state of the parse tree walk
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* PassNumber - 1, 2, or 3
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*
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* RETURN: Status
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*
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* DESCRIPTION: Init walk state callbacks
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsInitCallbacks (
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ACPI_WALK_STATE *WalkState,
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UINT32 PassNumber)
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{
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switch (PassNumber)
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{
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case 1:
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WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 |
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ACPI_PARSE_DELETE_TREE;
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WalkState->DescendingCallback = AcpiDsLoad1BeginOp;
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WalkState->AscendingCallback = AcpiDsLoad1EndOp;
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break;
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case 2:
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WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 |
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ACPI_PARSE_DELETE_TREE;
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WalkState->DescendingCallback = AcpiDsLoad2BeginOp;
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WalkState->AscendingCallback = AcpiDsLoad2EndOp;
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break;
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case 3:
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#ifndef ACPI_NO_METHOD_EXECUTION
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WalkState->ParseFlags |= ACPI_PARSE_EXECUTE |
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ACPI_PARSE_DELETE_TREE;
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WalkState->DescendingCallback = AcpiDsExecBeginOp;
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WalkState->AscendingCallback = AcpiDsExecEndOp;
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#endif
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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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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsLoad1BeginOp
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*
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* PARAMETERS: WalkState - Current state of the parse tree walk
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* OutOp - Where to return op if a new one is created
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*
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* RETURN: Status
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*
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* DESCRIPTION: Descending callback used during the loading of ACPI tables.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsLoad1BeginOp (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT **OutOp)
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{
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ACPI_PARSE_OBJECT *Op;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_OBJECT_TYPE ObjectType;
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char *Path;
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UINT32 Flags;
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ACPI_FUNCTION_TRACE (DsLoad1BeginOp);
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Op = WalkState->Op;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
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/* We are only interested in opcodes that have an associated name */
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if (Op)
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{
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if (!(WalkState->OpInfo->Flags & AML_NAMED))
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{
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*OutOp = Op;
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return_ACPI_STATUS (AE_OK);
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}
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/* Check if this object has already been installed in the namespace */
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if (Op->Common.Node)
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{
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*OutOp = Op;
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return_ACPI_STATUS (AE_OK);
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}
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}
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Path = AcpiPsGetNextNamestring (&WalkState->ParserState);
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/* Map the raw opcode into an internal object type */
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ObjectType = WalkState->OpInfo->ObjectType;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
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"State=%p Op=%p [%s]\n", WalkState, Op, AcpiUtGetTypeName (ObjectType)));
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switch (WalkState->Opcode)
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{
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case AML_SCOPE_OP:
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/*
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* The target name of the Scope() operator must exist at this point so
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* that we can actually open the scope to enter new names underneath it.
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* Allow search-to-root for single namesegs.
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
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ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node));
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#ifdef ACPI_ASL_COMPILER
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if (Status == AE_NOT_FOUND)
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{
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/*
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* Table disassembly:
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* Target of Scope() not found. Generate an External for it, and
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* insert the name into the namespace.
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*/
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AcpiDmAddToExternalList (Op, Path, ACPI_TYPE_DEVICE, 0);
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
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ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT,
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WalkState, &Node);
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}
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#endif
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if (ACPI_FAILURE (Status))
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{
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ACPI_ERROR_NAMESPACE (Path, Status);
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return_ACPI_STATUS (Status);
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}
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/*
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* Check to make sure that the target is
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* one of the opcodes that actually opens a scope
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*/
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switch (Node->Type)
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{
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case ACPI_TYPE_ANY:
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case ACPI_TYPE_LOCAL_SCOPE: /* Scope */
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case ACPI_TYPE_DEVICE:
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case ACPI_TYPE_POWER:
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case ACPI_TYPE_PROCESSOR:
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case ACPI_TYPE_THERMAL:
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/* These are acceptable types */
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break;
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case ACPI_TYPE_INTEGER:
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case ACPI_TYPE_STRING:
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case ACPI_TYPE_BUFFER:
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/*
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* These types we will allow, but we will change the type.
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* This enables some existing code of the form:
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*
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* Name (DEB, 0)
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* Scope (DEB) { ... }
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*
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* Note: silently change the type here. On the second pass,
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* we will report a warning
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*/
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
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"Type override - [%4.4s] had invalid type (%s) "
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"for Scope operator, changed to type ANY\n",
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AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type)));
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Node->Type = ACPI_TYPE_ANY;
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WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY;
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break;
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default:
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/* All other types are an error */
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ACPI_ERROR ((AE_INFO,
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"Invalid type (%s) for target of "
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"Scope operator [%4.4s] (Cannot override)",
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AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node)));
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return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
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}
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break;
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default:
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/*
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* For all other named opcodes, we will enter the name into
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* the namespace.
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*
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* Setup the search flags.
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* Since we are entering a name into the namespace, we do not want to
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* enable the search-to-root upsearch.
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*
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* There are only two conditions where it is acceptable that the name
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* already exists:
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* 1) the Scope() operator can reopen a scoping object that was
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* previously defined (Scope, Method, Device, etc.)
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* 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer,
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* BufferField, or Package), the name of the object is already
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* in the namespace.
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*/
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if (WalkState->DeferredNode)
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{
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/* This name is already in the namespace, get the node */
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Node = WalkState->DeferredNode;
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Status = AE_OK;
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break;
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}
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/*
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* If we are executing a method, do not create any namespace objects
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* during the load phase, only during execution.
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*/
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if (WalkState->MethodNode)
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{
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Node = NULL;
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Status = AE_OK;
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break;
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}
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Flags = ACPI_NS_NO_UPSEARCH;
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if ((WalkState->Opcode != AML_SCOPE_OP) &&
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(!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP)))
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{
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Flags |= ACPI_NS_ERROR_IF_FOUND;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n",
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AcpiUtGetTypeName (ObjectType)));
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}
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else
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
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"[%s] Both Find or Create allowed\n",
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AcpiUtGetTypeName (ObjectType)));
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}
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/*
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* Enter the named type into the internal namespace. We enter the name
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* as we go downward in the parse tree. Any necessary subobjects that
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* involve arguments to the opcode must be created as we go back up the
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* parse tree later.
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType,
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ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node);
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if (ACPI_FAILURE (Status))
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{
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if (Status == AE_ALREADY_EXISTS)
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{
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/* The name already exists in this scope */
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if (Node->Flags & ANOBJ_IS_EXTERNAL)
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{
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/*
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* Allow one create on an object or segment that was
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* previously declared External
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*/
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Node->Flags &= ~ANOBJ_IS_EXTERNAL;
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Node->Type = (UINT8) ObjectType;
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/* Just retyped a node, probably will need to open a scope */
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if (AcpiNsOpensScope (ObjectType))
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{
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Status = AcpiDsScopeStackPush (Node, ObjectType, WalkState);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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}
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Status = AE_OK;
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}
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}
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if (ACPI_FAILURE (Status))
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{
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ACPI_ERROR_NAMESPACE (Path, Status);
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return_ACPI_STATUS (Status);
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}
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}
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break;
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}
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/* Common exit */
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if (!Op)
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{
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/* Create a new op */
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Op = AcpiPsAllocOp (WalkState->Opcode);
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if (!Op)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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}
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/* Initialize the op */
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#if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY))
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Op->Named.Path = ACPI_CAST_PTR (UINT8, Path);
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#endif
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if (Node)
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{
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/*
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* Put the Node in the "op" object that the parser uses, so we
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* can get it again quickly when this scope is closed
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*/
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Op->Common.Node = Node;
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Op->Named.Name = Node->Name.Integer;
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}
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AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op);
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*OutOp = Op;
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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: AcpiDsLoad1EndOp
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*
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* PARAMETERS: WalkState - Current state of the parse tree walk
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*
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* RETURN: Status
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*
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* DESCRIPTION: Ascending callback used during the loading of the namespace,
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* both control methods and everything else.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsLoad1EndOp (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_PARSE_OBJECT *Op;
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ACPI_OBJECT_TYPE ObjectType;
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE (DsLoad1EndOp);
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Op = WalkState->Op;
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ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState));
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/* We are only interested in opcodes that have an associated name */
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if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD)))
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Get the object type to determine if we should pop the scope */
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ObjectType = WalkState->OpInfo->ObjectType;
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#ifndef ACPI_NO_METHOD_EXECUTION
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if (WalkState->OpInfo->Flags & AML_FIELD)
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{
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/*
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* If we are executing a method, do not create any namespace objects
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* during the load phase, only during execution.
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*/
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if (!WalkState->MethodNode)
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{
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if (WalkState->Opcode == AML_FIELD_OP ||
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WalkState->Opcode == AML_BANK_FIELD_OP ||
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WalkState->Opcode == AML_INDEX_FIELD_OP)
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{
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Status = AcpiDsInitFieldObjects (Op, WalkState);
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}
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}
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return_ACPI_STATUS (Status);
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}
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/*
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* If we are executing a method, do not create any namespace objects
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* during the load phase, only during execution.
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*/
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if (!WalkState->MethodNode)
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{
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if (Op->Common.AmlOpcode == AML_REGION_OP)
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{
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Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
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(ACPI_ADR_SPACE_TYPE) ((Op->Common.Value.Arg)->Common.Value.Integer),
|
|
WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP)
|
|
{
|
|
Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length,
|
|
ACPI_ADR_SPACE_DATA_TABLE, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (Op->Common.AmlOpcode == AML_NAME_OP)
|
|
{
|
|
/* For Name opcode, get the object type from the argument */
|
|
|
|
if (Op->Common.Value.Arg)
|
|
{
|
|
ObjectType = (AcpiPsGetOpcodeInfo (
|
|
(Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType;
|
|
|
|
/* Set node type if we have a namespace node */
|
|
|
|
if (Op->Common.Node)
|
|
{
|
|
Op->Common.Node->Type = (UINT8) ObjectType;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If we are executing a method, do not create any namespace objects
|
|
* during the load phase, only during execution.
|
|
*/
|
|
if (!WalkState->MethodNode)
|
|
{
|
|
if (Op->Common.AmlOpcode == AML_METHOD_OP)
|
|
{
|
|
/*
|
|
* MethodOp PkgLength NameString MethodFlags TermList
|
|
*
|
|
* Note: We must create the method node/object pair as soon as we
|
|
* see the method declaration. This allows later pass1 parsing
|
|
* of invocations of the method (need to know the number of
|
|
* arguments.)
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"LOADING-Method: State=%p Op=%p NamedObj=%p\n",
|
|
WalkState, Op, Op->Named.Node));
|
|
|
|
if (!AcpiNsGetAttachedObject (Op->Named.Node))
|
|
{
|
|
WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node);
|
|
WalkState->NumOperands = 1;
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, Op->Common.Value.Arg);
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
Status = AcpiExCreateMethod (Op->Named.Data,
|
|
Op->Named.Length, WalkState);
|
|
}
|
|
|
|
WalkState->Operands[0] = NULL;
|
|
WalkState->NumOperands = 0;
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Pop the scope stack (only if loading a table) */
|
|
|
|
if (!WalkState->MethodNode &&
|
|
AcpiNsOpensScope (ObjectType))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n",
|
|
AcpiUtGetTypeName (ObjectType), Op));
|
|
|
|
Status = AcpiDsScopeStackPop (WalkState);
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|