9560b6dea8
- 99% of the code is Intel's ACPICA. The license is compliant with BSD and GNU and virtually all systems that use ACPI use this code, For instance it is part of the Linux kernel. - The only minix specific files are acpi.c osminixxf.c platform/acminix.h and include/minix/acpi.h - At the moment the driver does not register interrupt hooks which I believe is mainly for handling PnP, events like "battery level is low" and power management. Should not be difficult to add it if need be. - The interface to the outside world is virtually non-existent except a trivial message based service for PCI driver to query which device is connected to what IRQ line. This will evolve as more components start using this driver. VM, Scheduler and IOMMU are the possible users right now. - because of dependency on a native 64bit (long long, part of c99) it is compiled only with a gnu-like compilers which in case of Minix includes gcc llvm-gcc and clang
894 lines
26 KiB
C
894 lines
26 KiB
C
/******************************************************************************
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*
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* Module Name: psargs - Parse AML opcode arguments
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __PSARGS_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 "acnamesp.h"
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#include "acdispat.h"
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#define _COMPONENT ACPI_PARSER
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ACPI_MODULE_NAME ("psargs")
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/* Local prototypes */
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static UINT32
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AcpiPsGetNextPackageLength (
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ACPI_PARSE_STATE *ParserState);
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static ACPI_PARSE_OBJECT *
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AcpiPsGetNextField (
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ACPI_PARSE_STATE *ParserState);
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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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* Note: Largest package length is 28 bits, from ACPI specification
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*
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******************************************************************************/
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static UINT32
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AcpiPsGetNextPackageLength (
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ACPI_PARSE_STATE *ParserState)
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{
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UINT8 *Aml = ParserState->Aml;
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UINT32 PackageLength = 0;
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UINT32 ByteCount;
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UINT8 ByteZeroMask = 0x3F; /* Default [0:5] */
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ACPI_FUNCTION_TRACE (PsGetNextPackageLength);
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/*
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* Byte 0 bits [6:7] contain the number of additional bytes
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* used to encode the package length, either 0,1,2, or 3
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*/
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ByteCount = (Aml[0] >> 6);
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ParserState->Aml += ((ACPI_SIZE) ByteCount + 1);
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/* Get bytes 3, 2, 1 as needed */
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while (ByteCount)
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{
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/*
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* Final bit positions for the package length bytes:
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* Byte3->[20:27]
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* Byte2->[12:19]
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* Byte1->[04:11]
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* Byte0->[00:03]
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*/
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PackageLength |= (Aml[ByteCount] << ((ByteCount << 3) - 4));
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ByteZeroMask = 0x0F; /* Use bits [0:3] of byte 0 */
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ByteCount--;
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}
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/* Byte 0 is a special case, either bits [0:3] or [0:5] are used */
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PackageLength |= (Aml[0] & ByteZeroMask);
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return_UINT32 (PackageLength);
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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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UINT32 PackageLength;
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ACPI_FUNCTION_TRACE (PsGetNextPackageEnd);
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/* Function below updates ParserState->Aml */
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PackageLength = AcpiPsGetNextPackageLength (ParserState);
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return_PTR (Start + PackageLength); /* 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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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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/* Point past any namestring prefix characters (backslash or carat) */
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while (AcpiPsIsPrefixChar (*End))
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{
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End++;
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}
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/* Decode the path prefix character */
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switch (*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, count in next byte */
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End += 2 + (*(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 = End;
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return_PTR ((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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* PossibleMethodCall - 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 PossibleMethodCall)
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{
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ACPI_STATUS Status;
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char *Path;
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ACPI_PARSE_OBJECT *NameOp;
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ACPI_OPERAND_OBJECT *MethodDesc;
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ACPI_NAMESPACE_NODE *Node;
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UINT8 *Start = ParserState->Aml;
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ACPI_FUNCTION_TRACE (PsGetNextNamepath);
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Path = AcpiPsGetNextNamestring (ParserState);
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AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
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/* Null path case is allowed, just exit */
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if (!Path)
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{
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Arg->Common.Value.Name = Path;
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return_ACPI_STATUS (AE_OK);
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}
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/*
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* Lookup the name in the internal namespace, starting with the current
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* scope. We don't want to add anything new to the namespace here,
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* however, so we use MODE_EXECUTE.
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* Allow searching of the parent tree, but don't open a new scope -
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* we just want to lookup the object (must be mode EXECUTE to perform
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* the upsearch)
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*/
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Status = AcpiNsLookup (WalkState->ScopeInfo, Path,
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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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/*
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* If this name is a control method invocation, we must
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* setup the method call
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*/
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if (ACPI_SUCCESS (Status) &&
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PossibleMethodCall &&
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(Node->Type == ACPI_TYPE_METHOD))
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{
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if (WalkState->Opcode == AML_UNLOAD_OP)
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{
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/*
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* AcpiPsGetNextNamestring has increased the AML pointer,
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* so we need to restore the saved AML pointer for method call.
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*/
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WalkState->ParserState.Aml = Start;
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WalkState->ArgCount = 1;
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AcpiPsInitOp (Arg, AML_INT_METHODCALL_OP);
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return_ACPI_STATUS (AE_OK);
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}
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/* This name is actually a control method invocation */
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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", 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_ERROR ((AE_INFO,
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"Control Method %p has no attached object",
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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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* Special handling if the name was not found during the lookup -
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* some NotFound cases are allowed
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*/
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if (Status == AE_NOT_FOUND)
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{
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/* 1) NotFound is ok during load pass 1/2 (allow forward references) */
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if ((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) !=
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ACPI_PARSE_EXECUTE)
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{
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Status = AE_OK;
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}
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/* 2) NotFound during a CondRefOf(x) is ok by definition */
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else if (WalkState->Op->Common.AmlOpcode == AML_COND_REF_OF_OP)
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{
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Status = AE_OK;
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}
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/*
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* 3) NotFound while building a Package is ok at this point, we
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* may flag as an error later if slack mode is not enabled.
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* (Some ASL code depends on allowing this behavior)
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*/
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else if ((Arg->Common.Parent) &&
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((Arg->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
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(Arg->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP)))
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{
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Status = AE_OK;
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}
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}
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/* Final exception check (may have been changed from code above) */
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if (ACPI_FAILURE (Status))
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{
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ACPI_ERROR_NAMESPACE (Path, Status);
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if ((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) ==
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ACPI_PARSE_EXECUTE)
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{
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/* Report a control method execution error */
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Status = AcpiDsMethodError (Status, WalkState);
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}
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}
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/* Save the namepath */
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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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UINT32 Length;
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UINT16 Opcode;
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UINT8 *Aml = ParserState->Aml;
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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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/* Get 1 byte from the AML stream */
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Opcode = AML_BYTE_OP;
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Arg->Common.Value.Integer = (UINT64) *Aml;
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Length = 1;
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break;
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case ARGP_WORDDATA:
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/* Get 2 bytes from the AML stream */
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Opcode = AML_WORD_OP;
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ACPI_MOVE_16_TO_64 (&Arg->Common.Value.Integer, Aml);
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Length = 2;
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break;
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|
|
|
case ARGP_DWORDDATA:
|
|
|
|
/* Get 4 bytes from the AML stream */
|
|
|
|
Opcode = AML_DWORD_OP;
|
|
ACPI_MOVE_32_TO_64 (&Arg->Common.Value.Integer, Aml);
|
|
Length = 4;
|
|
break;
|
|
|
|
|
|
case ARGP_QWORDDATA:
|
|
|
|
/* Get 8 bytes from the AML stream */
|
|
|
|
Opcode = AML_QWORD_OP;
|
|
ACPI_MOVE_64_TO_64 (&Arg->Common.Value.Integer, Aml);
|
|
Length = 8;
|
|
break;
|
|
|
|
|
|
case ARGP_CHARLIST:
|
|
|
|
/* Get a pointer to the string, point past the string */
|
|
|
|
Opcode = AML_STRING_OP;
|
|
Arg->Common.Value.String = ACPI_CAST_PTR (char, Aml);
|
|
|
|
/* Find the null terminator */
|
|
|
|
Length = 0;
|
|
while (Aml[Length])
|
|
{
|
|
Length++;
|
|
}
|
|
Length++;
|
|
break;
|
|
|
|
|
|
case ARGP_NAME:
|
|
case ARGP_NAMESTRING:
|
|
|
|
AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
|
|
Arg->Common.Value.Name = AcpiPsGetNextNamestring (ParserState);
|
|
return_VOID;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_ERROR ((AE_INFO, "Invalid ArgType 0x%X", ArgType));
|
|
return_VOID;
|
|
}
|
|
|
|
AcpiPsInitOp (Arg, Opcode);
|
|
ParserState->Aml += Length;
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiPsGetNextField
|
|
*
|
|
* PARAMETERS: ParserState - Current parser state object
|
|
*
|
|
* RETURN: A newly allocated FIELD op
|
|
*
|
|
* DESCRIPTION: Get next field (NamedField, ReservedField, or AccessField)
|
|
*
|
|
******************************************************************************/
|
|
|
|
static ACPI_PARSE_OBJECT *
|
|
AcpiPsGetNextField (
|
|
ACPI_PARSE_STATE *ParserState)
|
|
{
|
|
UINT32 AmlOffset = (UINT32)
|
|
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_32_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.Integer = (((UINT32) ACPI_GET8 (ParserState->Aml) << 8));
|
|
ParserState->Aml++;
|
|
Field->Common.Value.Integer |= ACPI_GET8 (ParserState->Aml);
|
|
ParserState->Aml++;
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Opcode was set in previous switch */
|
|
break;
|
|
}
|
|
|
|
return_PTR (Field);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiPsGetNextArg
|
|
*
|
|
* PARAMETERS: WalkState - Current state
|
|
* ParserState - Current parser state object
|
|
* ArgType - The argument type (AML_*_ARG)
|
|
* ReturnArg - Where the next arg is returned
|
|
*
|
|
* 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 = (UINT32)
|
|
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);
|
|
}
|
|
|
|
/* To support SuperName arg of Unload */
|
|
|
|
if (WalkState->Opcode == AML_UNLOAD_OP)
|
|
{
|
|
Status = AcpiPsGetNextNamepath (WalkState, ParserState, Arg, 1);
|
|
|
|
/*
|
|
* If the SuperName arg of Unload is a method call,
|
|
* we have restored the AML pointer, just free this Arg
|
|
*/
|
|
if (Arg->Common.AmlOpcode == AML_INT_METHODCALL_OP)
|
|
{
|
|
AcpiPsFreeOp (Arg);
|
|
Arg = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
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_ERROR ((AE_INFO, "Invalid ArgType: 0x%X", ArgType));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
break;
|
|
}
|
|
|
|
*ReturnArg = Arg;
|
|
return_ACPI_STATUS (Status);
|
|
}
|