882 lines
26 KiB
C
882 lines
26 KiB
C
/******************************************************************************
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*
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* Module Name: dsopcode - Dispatcher suport for regions and fields
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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 __DSOPCODE_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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#include "acevents.h"
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#include "actables.h"
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#define _COMPONENT ACPI_DISPATCHER
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ACPI_MODULE_NAME ("dsopcode")
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/* Local prototypes */
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static ACPI_STATUS
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AcpiDsInitBufferField (
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UINT16 AmlOpcode,
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_OPERAND_OBJECT *BufferDesc,
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ACPI_OPERAND_OBJECT *OffsetDesc,
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ACPI_OPERAND_OBJECT *LengthDesc,
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ACPI_OPERAND_OBJECT *ResultDesc);
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsInitializeRegion
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*
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* PARAMETERS: ObjHandle - Region namespace node
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*
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* RETURN: Status
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*
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* DESCRIPTION: Front end to EvInitializeRegion
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsInitializeRegion (
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ACPI_HANDLE ObjHandle)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_STATUS Status;
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ObjDesc = AcpiNsGetAttachedObject (ObjHandle);
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/* Namespace is NOT locked */
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Status = AcpiEvInitializeRegion (ObjDesc, FALSE);
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return (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsInitBufferField
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*
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* PARAMETERS: AmlOpcode - CreateXxxField
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* ObjDesc - BufferField object
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* BufferDesc - Host Buffer
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* OffsetDesc - Offset into buffer
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* LengthDesc - Length of field (CREATE_FIELD_OP only)
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* ResultDesc - Where to store the result
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*
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* RETURN: Status
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*
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* DESCRIPTION: Perform actual initialization of a buffer field
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*
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******************************************************************************/
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static ACPI_STATUS
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AcpiDsInitBufferField (
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UINT16 AmlOpcode,
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_OPERAND_OBJECT *BufferDesc,
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ACPI_OPERAND_OBJECT *OffsetDesc,
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ACPI_OPERAND_OBJECT *LengthDesc,
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ACPI_OPERAND_OBJECT *ResultDesc)
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{
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UINT32 Offset;
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UINT32 BitOffset;
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UINT32 BitCount;
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UINT8 FieldFlags;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_PTR (DsInitBufferField, ObjDesc);
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/* Host object must be a Buffer */
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if (BufferDesc->Common.Type != ACPI_TYPE_BUFFER)
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{
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ACPI_ERROR ((AE_INFO,
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"Target of Create Field is not a Buffer object - %s",
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AcpiUtGetObjectTypeName (BufferDesc)));
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Status = AE_AML_OPERAND_TYPE;
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goto Cleanup;
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}
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/*
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* The last parameter to all of these opcodes (ResultDesc) started
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* out as a NameString, and should therefore now be a NS node
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* after resolution in AcpiExResolveOperands().
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*/
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if (ACPI_GET_DESCRIPTOR_TYPE (ResultDesc) != ACPI_DESC_TYPE_NAMED)
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{
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ACPI_ERROR ((AE_INFO,
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"(%s) destination not a NS Node [%s]",
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AcpiPsGetOpcodeName (AmlOpcode),
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AcpiUtGetDescriptorName (ResultDesc)));
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Status = AE_AML_OPERAND_TYPE;
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goto Cleanup;
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}
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Offset = (UINT32) OffsetDesc->Integer.Value;
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/*
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* Setup the Bit offsets and counts, according to the opcode
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*/
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switch (AmlOpcode)
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{
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case AML_CREATE_FIELD_OP:
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/* Offset is in bits, count is in bits */
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FieldFlags = AML_FIELD_ACCESS_BYTE;
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BitOffset = Offset;
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BitCount = (UINT32) LengthDesc->Integer.Value;
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/* Must have a valid (>0) bit count */
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if (BitCount == 0)
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{
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ACPI_ERROR ((AE_INFO,
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"Attempt to CreateField of length zero"));
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Status = AE_AML_OPERAND_VALUE;
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goto Cleanup;
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}
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break;
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case AML_CREATE_BIT_FIELD_OP:
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/* Offset is in bits, Field is one bit */
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BitOffset = Offset;
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BitCount = 1;
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FieldFlags = AML_FIELD_ACCESS_BYTE;
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break;
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case AML_CREATE_BYTE_FIELD_OP:
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/* Offset is in bytes, field is one byte */
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BitOffset = 8 * Offset;
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BitCount = 8;
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FieldFlags = AML_FIELD_ACCESS_BYTE;
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break;
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case AML_CREATE_WORD_FIELD_OP:
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/* Offset is in bytes, field is one word */
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BitOffset = 8 * Offset;
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BitCount = 16;
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FieldFlags = AML_FIELD_ACCESS_WORD;
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break;
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case AML_CREATE_DWORD_FIELD_OP:
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/* Offset is in bytes, field is one dword */
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BitOffset = 8 * Offset;
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BitCount = 32;
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FieldFlags = AML_FIELD_ACCESS_DWORD;
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break;
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case AML_CREATE_QWORD_FIELD_OP:
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/* Offset is in bytes, field is one qword */
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BitOffset = 8 * Offset;
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BitCount = 64;
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FieldFlags = AML_FIELD_ACCESS_QWORD;
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break;
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default:
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ACPI_ERROR ((AE_INFO,
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"Unknown field creation opcode 0x%02X",
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AmlOpcode));
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Status = AE_AML_BAD_OPCODE;
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goto Cleanup;
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}
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/* Entire field must fit within the current length of the buffer */
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if ((BitOffset + BitCount) >
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(8 * (UINT32) BufferDesc->Buffer.Length))
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{
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ACPI_ERROR ((AE_INFO,
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"Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)",
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AcpiUtGetNodeName (ResultDesc),
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BitOffset + BitCount,
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AcpiUtGetNodeName (BufferDesc->Buffer.Node),
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8 * (UINT32) BufferDesc->Buffer.Length));
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Status = AE_AML_BUFFER_LIMIT;
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goto Cleanup;
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}
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/*
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* Initialize areas of the field object that are common to all fields
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* For FieldFlags, use LOCK_RULE = 0 (NO_LOCK),
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* UPDATE_RULE = 0 (UPDATE_PRESERVE)
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*/
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Status = AcpiExPrepCommonFieldObject (ObjDesc, FieldFlags, 0,
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BitOffset, BitCount);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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ObjDesc->BufferField.BufferObj = BufferDesc;
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/* Reference count for BufferDesc inherits ObjDesc count */
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BufferDesc->Common.ReferenceCount = (UINT16)
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(BufferDesc->Common.ReferenceCount + ObjDesc->Common.ReferenceCount);
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Cleanup:
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/* Always delete the operands */
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AcpiUtRemoveReference (OffsetDesc);
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AcpiUtRemoveReference (BufferDesc);
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if (AmlOpcode == AML_CREATE_FIELD_OP)
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{
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AcpiUtRemoveReference (LengthDesc);
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}
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/* On failure, delete the result descriptor */
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if (ACPI_FAILURE (Status))
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{
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AcpiUtRemoveReference (ResultDesc); /* Result descriptor */
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}
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else
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{
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/* Now the address and length are valid for this BufferField */
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ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID;
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}
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsEvalBufferFieldOperands
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*
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* PARAMETERS: WalkState - Current walk
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* Op - A valid BufferField Op object
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*
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* RETURN: Status
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*
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* DESCRIPTION: Get BufferField Buffer and Index
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* Called from AcpiDsExecEndOp during BufferField parse tree walk
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsEvalBufferFieldOperands (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_STATUS Status;
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_PARSE_OBJECT *NextOp;
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ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op);
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/*
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* This is where we evaluate the address and length fields of the
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* CreateXxxField declaration
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*/
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Node = Op->Common.Node;
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/* NextOp points to the op that holds the Buffer */
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NextOp = Op->Common.Value.Arg;
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/* Evaluate/create the address and length operands */
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Status = AcpiDsCreateOperands (WalkState, NextOp);
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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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ObjDesc = AcpiNsGetAttachedObject (Node);
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if (!ObjDesc)
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{
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return_ACPI_STATUS (AE_NOT_EXIST);
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}
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/* Resolve the operands */
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Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
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ACPI_WALK_OPERANDS, WalkState);
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if (ACPI_FAILURE (Status))
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{
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ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X",
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AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status));
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return_ACPI_STATUS (Status);
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}
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/* Initialize the Buffer Field */
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if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)
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{
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/* NOTE: Slightly different operands for this opcode */
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Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc,
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WalkState->Operands[0], WalkState->Operands[1],
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WalkState->Operands[2], WalkState->Operands[3]);
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}
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else
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{
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/* All other, CreateXxxField opcodes */
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Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc,
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WalkState->Operands[0], WalkState->Operands[1],
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NULL, WalkState->Operands[2]);
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}
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsEvalRegionOperands
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*
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* PARAMETERS: WalkState - Current walk
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* Op - A valid region Op object
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*
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* RETURN: Status
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*
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* DESCRIPTION: Get region address and length
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* Called from AcpiDsExecEndOp during OpRegion parse tree walk
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsEvalRegionOperands (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_STATUS Status;
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_OPERAND_OBJECT *OperandDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_PARSE_OBJECT *NextOp;
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ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op);
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/*
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* This is where we evaluate the address and length fields of the
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* OpRegion declaration
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*/
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Node = Op->Common.Node;
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/* NextOp points to the op that holds the SpaceID */
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NextOp = Op->Common.Value.Arg;
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/* NextOp points to address op */
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NextOp = NextOp->Common.Next;
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/* Evaluate/create the address and length operands */
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Status = AcpiDsCreateOperands (WalkState, NextOp);
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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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/* Resolve the length and address operands to numbers */
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Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
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ACPI_WALK_OPERANDS, 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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ObjDesc = AcpiNsGetAttachedObject (Node);
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if (!ObjDesc)
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{
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return_ACPI_STATUS (AE_NOT_EXIST);
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}
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/*
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* Get the length operand and save it
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* (at Top of stack)
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*/
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OperandDesc = WalkState->Operands[WalkState->NumOperands - 1];
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ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value;
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AcpiUtRemoveReference (OperandDesc);
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/*
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* Get the address and save it
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* (at top of stack - 1)
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*/
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OperandDesc = WalkState->Operands[WalkState->NumOperands - 2];
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ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS)
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OperandDesc->Integer.Value;
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AcpiUtRemoveReference (OperandDesc);
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|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
|
|
ObjDesc,
|
|
ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address),
|
|
ObjDesc->Region.Length));
|
|
|
|
/* Now the address and length are valid for this opregion */
|
|
|
|
ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsEvalTableRegionOperands
|
|
*
|
|
* PARAMETERS: WalkState - Current walk
|
|
* Op - A valid region Op object
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get region address and length.
|
|
* Called from AcpiDsExecEndOp during DataTableRegion parse
|
|
* tree walk.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsEvalTableRegionOperands (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT **Operand;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
UINT32 TableIndex;
|
|
ACPI_TABLE_HEADER *Table;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op);
|
|
|
|
|
|
/*
|
|
* This is where we evaluate the SignatureString and OemIDString
|
|
* and OemTableIDString of the DataTableRegion declaration
|
|
*/
|
|
Node = Op->Common.Node;
|
|
|
|
/* NextOp points to SignatureString op */
|
|
|
|
NextOp = Op->Common.Value.Arg;
|
|
|
|
/*
|
|
* Evaluate/create the SignatureString and OemIDString
|
|
* and OemTableIDString operands
|
|
*/
|
|
Status = AcpiDsCreateOperands (WalkState, NextOp);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Resolve the SignatureString and OemIDString
|
|
* and OemTableIDString operands
|
|
*/
|
|
Status = AcpiExResolveOperands (Op->Common.AmlOpcode,
|
|
ACPI_WALK_OPERANDS, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
Operand = &WalkState->Operands[0];
|
|
|
|
/* Find the ACPI table */
|
|
|
|
Status = AcpiTbFindTable (Operand[0]->String.Pointer,
|
|
Operand[1]->String.Pointer, Operand[2]->String.Pointer,
|
|
&TableIndex);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
AcpiUtRemoveReference (Operand[0]);
|
|
AcpiUtRemoveReference (Operand[1]);
|
|
AcpiUtRemoveReference (Operand[2]);
|
|
|
|
Status = AcpiGetTableByIndex (TableIndex, &Table);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) ACPI_TO_INTEGER (Table);
|
|
ObjDesc->Region.Length = Table->Length;
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
|
|
ObjDesc,
|
|
ACPI_FORMAT_NATIVE_UINT (ObjDesc->Region.Address),
|
|
ObjDesc->Region.Length));
|
|
|
|
/* Now the address and length are valid for this opregion */
|
|
|
|
ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsEvalDataObjectOperands
|
|
*
|
|
* PARAMETERS: WalkState - Current walk
|
|
* Op - A valid DataObject Op object
|
|
* ObjDesc - DataObject
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get the operands and complete the following data object types:
|
|
* Buffer, Package.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsEvalDataObjectOperands (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_OPERAND_OBJECT *ObjDesc)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_OPERAND_OBJECT *ArgDesc;
|
|
UINT32 Length;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands);
|
|
|
|
|
|
/* The first operand (for all of these data objects) is the length */
|
|
|
|
/*
|
|
* Set proper index into operand stack for AcpiDsObjStackPush
|
|
* invoked inside AcpiDsCreateOperand.
|
|
*/
|
|
WalkState->OperandIndex = WalkState->NumOperands;
|
|
|
|
Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
Status = AcpiExResolveOperands (WalkState->Opcode,
|
|
&(WalkState->Operands [WalkState->NumOperands -1]),
|
|
WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Extract length operand */
|
|
|
|
ArgDesc = WalkState->Operands [WalkState->NumOperands - 1];
|
|
Length = (UINT32) ArgDesc->Integer.Value;
|
|
|
|
/* Cleanup for length operand */
|
|
|
|
Status = AcpiDsObjStackPop (1, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
AcpiUtRemoveReference (ArgDesc);
|
|
|
|
/*
|
|
* Create the actual data object
|
|
*/
|
|
switch (Op->Common.AmlOpcode)
|
|
{
|
|
case AML_BUFFER_OP:
|
|
|
|
Status = AcpiDsBuildInternalBufferObj (WalkState, Op, Length, &ObjDesc);
|
|
break;
|
|
|
|
case AML_PACKAGE_OP:
|
|
case AML_VAR_PACKAGE_OP:
|
|
|
|
Status = AcpiDsBuildInternalPackageObj (WalkState, Op, Length, &ObjDesc);
|
|
break;
|
|
|
|
default:
|
|
return_ACPI_STATUS (AE_AML_BAD_OPCODE);
|
|
}
|
|
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
/*
|
|
* Return the object in the WalkState, unless the parent is a package -
|
|
* in this case, the return object will be stored in the parse tree
|
|
* for the package.
|
|
*/
|
|
if ((!Op->Common.Parent) ||
|
|
((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) &&
|
|
(Op->Common.Parent->Common.AmlOpcode != AML_VAR_PACKAGE_OP) &&
|
|
(Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP)))
|
|
{
|
|
WalkState->ResultObj = ObjDesc;
|
|
}
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsEvalBankFieldOperands
|
|
*
|
|
* PARAMETERS: WalkState - Current walk
|
|
* Op - A valid BankField Op object
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get BankField BankValue
|
|
* Called from AcpiDsExecEndOp during BankField parse tree walk
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsEvalBankFieldOperands (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *OperandDesc;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op);
|
|
|
|
|
|
/*
|
|
* This is where we evaluate the BankValue field of the
|
|
* BankField declaration
|
|
*/
|
|
|
|
/* NextOp points to the op that holds the Region */
|
|
|
|
NextOp = Op->Common.Value.Arg;
|
|
|
|
/* NextOp points to the op that holds the Bank Register */
|
|
|
|
NextOp = NextOp->Common.Next;
|
|
|
|
/* NextOp points to the op that holds the Bank Value */
|
|
|
|
NextOp = NextOp->Common.Next;
|
|
|
|
/*
|
|
* Set proper index into operand stack for AcpiDsObjStackPush
|
|
* invoked inside AcpiDsCreateOperand.
|
|
*
|
|
* We use WalkState->Operands[0] to store the evaluated BankValue
|
|
*/
|
|
WalkState->OperandIndex = 0;
|
|
|
|
Status = AcpiDsCreateOperand (WalkState, NextOp, 0);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS,
|
|
AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1);
|
|
/*
|
|
* Get the BankValue operand and save it
|
|
* (at Top of stack)
|
|
*/
|
|
OperandDesc = WalkState->Operands[0];
|
|
|
|
/* Arg points to the start Bank Field */
|
|
|
|
Arg = AcpiPsGetArg (Op, 4);
|
|
while (Arg)
|
|
{
|
|
/* Ignore OFFSET and ACCESSAS terms here */
|
|
|
|
if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP)
|
|
{
|
|
Node = Arg->Common.Node;
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value;
|
|
}
|
|
|
|
/* Move to next field in the list */
|
|
|
|
Arg = Arg->Common.Next;
|
|
}
|
|
|
|
AcpiUtRemoveReference (OperandDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|