847 lines
25 KiB
C
847 lines
25 KiB
C
/******************************************************************************
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*
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* Module Name: psargs - Parse AML opcode arguments
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* $Revision: 65 $
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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 - 2002, 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 __PSARGS_C__
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#include "acpi.h"
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#include "acparser.h"
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#include "amlcode.h"
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#include "acnamesp.h"
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#define _COMPONENT ACPI_PARSER
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ACPI_MODULE_NAME ("psargs")
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/*******************************************************************************
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*
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* FUNCTION: AcpiPsGetNextPackageLength
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*
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* PARAMETERS: ParserState - Current parser state object
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*
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* RETURN: Decoded package length. On completion, the AML pointer points
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* past the length byte or bytes.
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*
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* DESCRIPTION: Decode and return a package length field
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*
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******************************************************************************/
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UINT32
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AcpiPsGetNextPackageLength (
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ACPI_PARSE_STATE *ParserState)
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{
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UINT32 EncodedLength;
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UINT32 Length = 0;
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ACPI_FUNCTION_TRACE ("PsGetNextPackageLength");
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EncodedLength = (UINT32) ACPI_GET8 (ParserState->Aml);
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ParserState->Aml++;
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switch (EncodedLength >> 6) /* bits 6-7 contain encoding scheme */
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{
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case 0: /* 1-byte encoding (bits 0-5) */
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Length = (EncodedLength & 0x3F);
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break;
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case 1: /* 2-byte encoding (next byte + bits 0-3) */
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Length = ((ACPI_GET8 (ParserState->Aml) << 04) |
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(EncodedLength & 0x0F));
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ParserState->Aml++;
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break;
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case 2: /* 3-byte encoding (next 2 bytes + bits 0-3) */
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Length = ((ACPI_GET8 (ParserState->Aml + 1) << 12) |
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(ACPI_GET8 (ParserState->Aml) << 04) |
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(EncodedLength & 0x0F));
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ParserState->Aml += 2;
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break;
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case 3: /* 4-byte encoding (next 3 bytes + bits 0-3) */
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Length = ((ACPI_GET8 (ParserState->Aml + 2) << 20) |
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(ACPI_GET8 (ParserState->Aml + 1) << 12) |
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(ACPI_GET8 (ParserState->Aml) << 04) |
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(EncodedLength & 0x0F));
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ParserState->Aml += 3;
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break;
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default:
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/* Can't get here, only 2 bits / 4 cases */
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break;
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}
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return_VALUE (Length);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiPsGetNextPackageEnd
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*
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* PARAMETERS: ParserState - Current parser state object
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*
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* RETURN: Pointer to end-of-package +1
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*
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* DESCRIPTION: Get next package length and return a pointer past the end of
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* the package. Consumes the package length field
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*
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******************************************************************************/
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UINT8 *
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AcpiPsGetNextPackageEnd (
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ACPI_PARSE_STATE *ParserState)
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{
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UINT8 *Start = ParserState->Aml;
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NATIVE_UINT Length;
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ACPI_FUNCTION_TRACE ("PsGetNextPackageEnd");
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/* Function below changes ParserState->Aml */
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Length = (NATIVE_UINT) AcpiPsGetNextPackageLength (ParserState);
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return_PTR (Start + Length); /* end of package */
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiPsGetNextNamestring
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*
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* PARAMETERS: ParserState - Current parser state object
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*
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* RETURN: Pointer to the start of the name string (pointer points into
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* the AML.
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*
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* DESCRIPTION: Get next raw namestring within the AML stream. Handles all name
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* prefix characters. Set parser state to point past the string.
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* (Name is consumed from the AML.)
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*
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******************************************************************************/
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NATIVE_CHAR *
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AcpiPsGetNextNamestring (
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ACPI_PARSE_STATE *ParserState)
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{
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UINT8 *Start = ParserState->Aml;
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UINT8 *End = ParserState->Aml;
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ACPI_FUNCTION_TRACE ("PsGetNextNamestring");
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/* Handle multiple prefix characters */
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while (AcpiPsIsPrefixChar (ACPI_GET8 (End)))
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{
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/* Include prefix '\\' or '^' */
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End++;
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}
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/* Decode the path */
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switch (ACPI_GET8 (End))
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{
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case 0:
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/* NullName */
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if (End == Start)
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{
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Start = NULL;
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}
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End++;
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break;
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case AML_DUAL_NAME_PREFIX:
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/* Two name segments */
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End += 1 + (2 * ACPI_NAME_SIZE);
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break;
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case AML_MULTI_NAME_PREFIX_OP:
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/* Multiple name segments, 4 chars each */
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End += 2 + ((ACPI_SIZE) ACPI_GET8 (End + 1) * ACPI_NAME_SIZE);
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break;
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default:
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/* Single name segment */
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End += ACPI_NAME_SIZE;
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break;
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}
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ParserState->Aml = (UINT8*) End;
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return_PTR ((NATIVE_CHAR *) Start);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiPsGetNextNamepath
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*
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* PARAMETERS: ParserState - Current parser state object
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* Arg - Where the namepath will be stored
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* ArgCount - If the namepath points to a control method
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* the method's argument is returned here.
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* MethodCall - Whether the namepath can possibly be the
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* start of a method call
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*
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* RETURN: Status
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*
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* DESCRIPTION: Get next name (if method call, return # of required args).
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* Names are looked up in the internal namespace to determine
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* if the name represents a control method. If a method
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* is found, the number of arguments to the method is returned.
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* This information is critical for parsing to continue correctly.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiPsGetNextNamepath (
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ACPI_WALK_STATE *WalkState,
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ACPI_PARSE_STATE *ParserState,
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ACPI_PARSE_OBJECT *Arg,
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BOOLEAN MethodCall)
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{
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NATIVE_CHAR *Path;
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ACPI_PARSE_OBJECT *NameOp;
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ACPI_STATUS Status = AE_OK;
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ACPI_OPERAND_OBJECT *MethodDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_GENERIC_STATE ScopeInfo;
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ACPI_FUNCTION_TRACE ("PsGetNextNamepath");
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Path = AcpiPsGetNextNamestring (ParserState);
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/* Null path case is allowed */
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if (Path)
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{
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/*
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* Lookup the name in the internal namespace
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*/
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ScopeInfo.Scope.Node = NULL;
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Node = ParserState->StartNode;
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if (Node)
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{
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ScopeInfo.Scope.Node = Node;
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}
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/*
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* Lookup object. We don't want to add anything new to the namespace
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* here, however. So we use MODE_EXECUTE. Allow searching of the
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* parent tree, but don't open a new scope -- we just want to lookup the
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* object (MUST BE mode EXECUTE to perform upsearch)
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*/
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Status = AcpiNsLookup (&ScopeInfo, Path, ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
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ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node);
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if (ACPI_SUCCESS (Status) && MethodCall)
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{
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if (Node->Type == ACPI_TYPE_METHOD)
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{
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/*
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* This name is actually a control method invocation
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*/
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MethodDesc = AcpiNsGetAttachedObject (Node);
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ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
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"Control Method - %p Desc %p Path=%p\n",
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Node, MethodDesc, Path));
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NameOp = AcpiPsAllocOp (AML_INT_NAMEPATH_OP);
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if (!NameOp)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Change arg into a METHOD CALL and attach name to it */
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AcpiPsInitOp (Arg, AML_INT_METHODCALL_OP);
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NameOp->Common.Value.Name = Path;
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/* Point METHODCALL/NAME to the METHOD Node */
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NameOp->Common.Node = Node;
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AcpiPsAppendArg (Arg, NameOp);
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if (!MethodDesc)
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
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"Control Method - %p has no attached object\n",
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Node));
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return_ACPI_STATUS (AE_AML_INTERNAL);
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}
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ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
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"Control Method - %p Args %X\n",
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Node, MethodDesc->Method.ParamCount));
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/* Get the number of arguments to expect */
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WalkState->ArgCount = MethodDesc->Method.ParamCount;
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return_ACPI_STATUS (AE_OK);
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}
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/*
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* Else this is normal named object reference.
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* Just init the NAMEPATH object with the pathname.
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* (See code below)
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*/
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}
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if (ACPI_FAILURE (Status))
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{
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/*
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* 1) Any error other than NOT_FOUND is always severe
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* 2) NOT_FOUND is only important if we are executing a method.
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* 3) If executing a CondRefOf opcode, NOT_FOUND is ok.
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*/
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if ((((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) == ACPI_PARSE_EXECUTE) &&
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(Status == AE_NOT_FOUND) &&
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(WalkState->Op->Common.AmlOpcode != AML_COND_REF_OF_OP)) ||
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(Status != AE_NOT_FOUND))
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{
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ACPI_REPORT_NSERROR (Path, Status);
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}
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else
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{
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/*
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* We got a NOT_FOUND during table load or we encountered
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* a CondRefOf(x) where the target does not exist.
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* -- either case is ok
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*/
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Status = AE_OK;
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}
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}
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}
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/*
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* Regardless of success/failure above,
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* Just initialize the Op with the pathname.
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*/
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AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
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Arg->Common.Value.Name = Path;
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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: AcpiPsGetNextSimpleArg
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*
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* PARAMETERS: ParserState - Current parser state object
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* ArgType - The argument type (AML_*_ARG)
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* Arg - Where the argument is returned
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*
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* RETURN: None
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*
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* DESCRIPTION: Get the next simple argument (constant, string, or namestring)
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*
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******************************************************************************/
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void
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AcpiPsGetNextSimpleArg (
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ACPI_PARSE_STATE *ParserState,
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UINT32 ArgType,
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ACPI_PARSE_OBJECT *Arg)
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{
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ACPI_FUNCTION_TRACE_U32 ("PsGetNextSimpleArg", ArgType);
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switch (ArgType)
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{
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case ARGP_BYTEDATA:
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AcpiPsInitOp (Arg, AML_BYTE_OP);
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Arg->Common.Value.Integer = (UINT32) ACPI_GET8 (ParserState->Aml);
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ParserState->Aml++;
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break;
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case ARGP_WORDDATA:
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AcpiPsInitOp (Arg, AML_WORD_OP);
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/* Get 2 bytes from the AML stream */
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ACPI_MOVE_UNALIGNED16_TO_32 (&Arg->Common.Value.Integer, ParserState->Aml);
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ParserState->Aml += 2;
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break;
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case ARGP_DWORDDATA:
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AcpiPsInitOp (Arg, AML_DWORD_OP);
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/* Get 4 bytes from the AML stream */
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ACPI_MOVE_UNALIGNED32_TO_32 (&Arg->Common.Value.Integer, ParserState->Aml);
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ParserState->Aml += 4;
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break;
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case ARGP_QWORDDATA:
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AcpiPsInitOp (Arg, AML_QWORD_OP);
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/* Get 8 bytes from the AML stream */
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ACPI_MOVE_UNALIGNED64_TO_64 (&Arg->Common.Value.Integer, ParserState->Aml);
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ParserState->Aml += 8;
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break;
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case ARGP_CHARLIST:
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AcpiPsInitOp (Arg, AML_STRING_OP);
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Arg->Common.Value.String = (char *) ParserState->Aml;
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while (ACPI_GET8 (ParserState->Aml) != '\0')
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{
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ParserState->Aml++;
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}
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ParserState->Aml++;
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break;
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case ARGP_NAME:
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case ARGP_NAMESTRING:
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AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
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Arg->Common.Value.Name = AcpiPsGetNextNamestring (ParserState);
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break;
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default:
|
|
|
|
ACPI_REPORT_ERROR (("Invalid ArgType %X\n", ArgType));
|
|
break;
|
|
}
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiPsGetNextField
|
|
*
|
|
* PARAMETERS: ParserState - Current parser state object
|
|
*
|
|
* RETURN: A newly allocated FIELD op
|
|
*
|
|
* DESCRIPTION: Get next field (NamedField, ReservedField, or AccessField)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PARSE_OBJECT *
|
|
AcpiPsGetNextField (
|
|
ACPI_PARSE_STATE *ParserState)
|
|
{
|
|
UINT32 AmlOffset = ACPI_PTR_DIFF (ParserState->Aml,
|
|
ParserState->AmlStart);
|
|
ACPI_PARSE_OBJECT *Field;
|
|
UINT16 Opcode;
|
|
UINT32 Name;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("PsGetNextField");
|
|
|
|
|
|
/* determine field type */
|
|
|
|
switch (ACPI_GET8 (ParserState->Aml))
|
|
{
|
|
default:
|
|
|
|
Opcode = AML_INT_NAMEDFIELD_OP;
|
|
break;
|
|
|
|
case 0x00:
|
|
|
|
Opcode = AML_INT_RESERVEDFIELD_OP;
|
|
ParserState->Aml++;
|
|
break;
|
|
|
|
case 0x01:
|
|
|
|
Opcode = AML_INT_ACCESSFIELD_OP;
|
|
ParserState->Aml++;
|
|
break;
|
|
}
|
|
|
|
|
|
/* Allocate a new field op */
|
|
|
|
Field = AcpiPsAllocOp (Opcode);
|
|
if (!Field)
|
|
{
|
|
return_PTR (NULL);
|
|
}
|
|
|
|
Field->Common.AmlOffset = AmlOffset;
|
|
|
|
/* Decode the field type */
|
|
|
|
switch (Opcode)
|
|
{
|
|
case AML_INT_NAMEDFIELD_OP:
|
|
|
|
/* Get the 4-character name */
|
|
|
|
ACPI_MOVE_UNALIGNED32_TO_32 (&Name, ParserState->Aml);
|
|
AcpiPsSetName (Field, Name);
|
|
ParserState->Aml += ACPI_NAME_SIZE;
|
|
|
|
/* Get the length which is encoded as a package length */
|
|
|
|
Field->Common.Value.Size = AcpiPsGetNextPackageLength (ParserState);
|
|
break;
|
|
|
|
|
|
case AML_INT_RESERVEDFIELD_OP:
|
|
|
|
/* Get the length which is encoded as a package length */
|
|
|
|
Field->Common.Value.Size = AcpiPsGetNextPackageLength (ParserState);
|
|
break;
|
|
|
|
|
|
case AML_INT_ACCESSFIELD_OP:
|
|
|
|
/*
|
|
* Get AccessType and AccessAttrib and merge into the field Op
|
|
* AccessType is first operand, AccessAttribute is second
|
|
*/
|
|
Field->Common.Value.Integer32 = (ACPI_GET8 (ParserState->Aml) << 8);
|
|
ParserState->Aml++;
|
|
Field->Common.Value.Integer32 |= ACPI_GET8 (ParserState->Aml);
|
|
ParserState->Aml++;
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Opcode was set in previous switch */
|
|
break;
|
|
}
|
|
|
|
return_PTR (Field);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiPsGetNextArg
|
|
*
|
|
* PARAMETERS: ParserState - Current parser state object
|
|
* ArgType - The argument type (AML_*_ARG)
|
|
* ArgCount - If the argument points to a control method
|
|
* the method's argument is returned here.
|
|
*
|
|
* RETURN: Status, and an op object containing the next argument.
|
|
*
|
|
* DESCRIPTION: Get next argument (including complex list arguments that require
|
|
* pushing the parser stack)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiPsGetNextArg (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_STATE *ParserState,
|
|
UINT32 ArgType,
|
|
ACPI_PARSE_OBJECT **ReturnArg)
|
|
{
|
|
ACPI_PARSE_OBJECT *Arg = NULL;
|
|
ACPI_PARSE_OBJECT *Prev = NULL;
|
|
ACPI_PARSE_OBJECT *Field;
|
|
UINT32 Subop;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_PTR ("PsGetNextArg", ParserState);
|
|
|
|
|
|
switch (ArgType)
|
|
{
|
|
case ARGP_BYTEDATA:
|
|
case ARGP_WORDDATA:
|
|
case ARGP_DWORDDATA:
|
|
case ARGP_CHARLIST:
|
|
case ARGP_NAME:
|
|
case ARGP_NAMESTRING:
|
|
|
|
/* constants, strings, and namestrings are all the same size */
|
|
|
|
Arg = AcpiPsAllocOp (AML_BYTE_OP);
|
|
if (!Arg)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
AcpiPsGetNextSimpleArg (ParserState, ArgType, Arg);
|
|
break;
|
|
|
|
|
|
case ARGP_PKGLENGTH:
|
|
|
|
/* Package length, nothing returned */
|
|
|
|
ParserState->PkgEnd = AcpiPsGetNextPackageEnd (ParserState);
|
|
break;
|
|
|
|
|
|
case ARGP_FIELDLIST:
|
|
|
|
if (ParserState->Aml < ParserState->PkgEnd)
|
|
{
|
|
/* Non-empty list */
|
|
|
|
while (ParserState->Aml < ParserState->PkgEnd)
|
|
{
|
|
Field = AcpiPsGetNextField (ParserState);
|
|
if (!Field)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
if (Prev)
|
|
{
|
|
Prev->Common.Next = Field;
|
|
}
|
|
else
|
|
{
|
|
Arg = Field;
|
|
}
|
|
|
|
Prev = Field;
|
|
}
|
|
|
|
/* Skip to End of byte data */
|
|
|
|
ParserState->Aml = ParserState->PkgEnd;
|
|
}
|
|
break;
|
|
|
|
|
|
case ARGP_BYTELIST:
|
|
|
|
if (ParserState->Aml < ParserState->PkgEnd)
|
|
{
|
|
/* Non-empty list */
|
|
|
|
Arg = AcpiPsAllocOp (AML_INT_BYTELIST_OP);
|
|
if (!Arg)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Fill in bytelist data */
|
|
|
|
Arg->Common.Value.Size = ACPI_PTR_DIFF (ParserState->PkgEnd,
|
|
ParserState->Aml);
|
|
Arg->Named.Data = ParserState->Aml;
|
|
|
|
/* Skip to End of byte data */
|
|
|
|
ParserState->Aml = ParserState->PkgEnd;
|
|
}
|
|
break;
|
|
|
|
|
|
case ARGP_TARGET:
|
|
case ARGP_SUPERNAME:
|
|
case ARGP_SIMPLENAME:
|
|
|
|
Subop = AcpiPsPeekOpcode (ParserState);
|
|
if (Subop == 0 ||
|
|
AcpiPsIsLeadingChar (Subop) ||
|
|
AcpiPsIsPrefixChar (Subop))
|
|
{
|
|
/* NullName or NameString */
|
|
|
|
Arg = AcpiPsAllocOp (AML_INT_NAMEPATH_OP);
|
|
if (!Arg)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
Status = AcpiPsGetNextNamepath (WalkState, ParserState, Arg, 0);
|
|
}
|
|
else
|
|
{
|
|
/* single complex argument, nothing returned */
|
|
|
|
WalkState->ArgCount = 1;
|
|
}
|
|
break;
|
|
|
|
|
|
case ARGP_DATAOBJ:
|
|
case ARGP_TERMARG:
|
|
|
|
/* single complex argument, nothing returned */
|
|
|
|
WalkState->ArgCount = 1;
|
|
break;
|
|
|
|
|
|
case ARGP_DATAOBJLIST:
|
|
case ARGP_TERMLIST:
|
|
case ARGP_OBJLIST:
|
|
|
|
if (ParserState->Aml < ParserState->PkgEnd)
|
|
{
|
|
/* non-empty list of variable arguments, nothing returned */
|
|
|
|
WalkState->ArgCount = ACPI_VAR_ARGS;
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_REPORT_ERROR (("Invalid ArgType: %X\n", ArgType));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
break;
|
|
}
|
|
|
|
*ReturnArg = Arg;
|
|
return_ACPI_STATUS (Status);
|
|
}
|