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672 lines
20 KiB
C
672 lines
20 KiB
C
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/******************************************************************************
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*
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* Module Name: exmisc - ACPI AML (p-code) execution - specific opcodes
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* $Revision: 77 $
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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, 2000, 2001, 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 __EXMISC_C__
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#include "acpi.h"
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#include "acparser.h"
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#include "acinterp.h"
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#include "amlcode.h"
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#include "acdispat.h"
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#define _COMPONENT ACPI_EXECUTER
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MODULE_NAME ("exmisc")
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/*******************************************************************************
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*
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* FUNCTION: AcpiExFatal
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*
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* PARAMETERS: none
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*
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* RETURN: Status. If the OS returns from the OSD call, we just keep
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* on going.
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*
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* DESCRIPTION: Execute Fatal operator
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*
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* ACPI SPECIFICATION REFERENCES:
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* DefFatal := FatalOp FatalType FatalCode FatalArg
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* FatalType := ByteData
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* FatalCode := DWordData
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* FatalArg := TermArg=>Integer
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExFatal (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_OPERAND_OBJECT *TypeDesc;
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ACPI_OPERAND_OBJECT *CodeDesc;
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ACPI_OPERAND_OBJECT *ArgDesc;
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ACPI_STATUS Status;
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FUNCTION_TRACE ("ExFatal");
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/* Resolve operands */
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Status = AcpiExResolveOperands (AML_FATAL_OP, WALK_OPERANDS, WalkState);
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DUMP_OPERANDS (WALK_OPERANDS, IMODE_EXECUTE,
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AcpiPsGetOpcodeName (AML_FATAL_OP),
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3, "after AcpiExResolveOperands");
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/* Get operands */
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Status |= AcpiDsObjStackPopObject (&ArgDesc, WalkState);
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Status |= AcpiDsObjStackPopObject (&CodeDesc, WalkState);
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Status |= AcpiDsObjStackPopObject (&TypeDesc, WalkState);
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if (ACPI_FAILURE (Status))
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{
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/* Invalid parameters on object stack */
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DEBUG_PRINTP (ACPI_ERROR, ("bad operand(s) (Status=%X)\n",
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Status));
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goto Cleanup;
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}
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/* DefFatal := FatalOp FatalType FatalCode FatalArg */
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DEBUG_PRINTP (ACPI_INFO,
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("Type %x Code %x Arg %x <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n",
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TypeDesc->Integer.Value, CodeDesc->Integer.Value, ArgDesc->Integer.Value));
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/*
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* TBD: [Unhandled] call OSD interface to notify OS of fatal error
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* requiring shutdown!
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*/
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Cleanup:
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/* Free the operands */
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AcpiUtRemoveReference (ArgDesc);
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AcpiUtRemoveReference (CodeDesc);
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AcpiUtRemoveReference (TypeDesc);
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/* If we get back from the OS call, we might as well keep going. */
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REPORT_WARNING (("An AML \"Fatal\" Opcode (FatalOp) was executed\n"));
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiExIndex
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*
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* PARAMETERS: none
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Index operator
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*
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* ALLOCATION: Deletes one operand descriptor -- other remains on stack
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*
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* ACPI SPECIFICATION REFERENCES:
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* DefIndex := IndexOp BuffPkgObj IndexValue Result
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* IndexValue := TermArg=>Integer
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* NameString := <RootChar NamePath> | <PrefixPath NamePath>
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* Result := SuperName
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* SuperName := NameString | ArgObj | LocalObj | DebugObj | DefIndex
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* Local4Op | Local5Op | Local6Op | Local7Op
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExIndex (
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ACPI_WALK_STATE *WalkState,
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ACPI_OPERAND_OBJECT **ReturnDesc)
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{
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ACPI_OPERAND_OBJECT *ObjDesc;
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ACPI_OPERAND_OBJECT *IdxDesc;
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ACPI_OPERAND_OBJECT *ResDesc;
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ACPI_OPERAND_OBJECT *RetDesc = NULL;
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ACPI_OPERAND_OBJECT *TmpDesc;
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ACPI_STATUS Status;
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FUNCTION_TRACE ("ExIndex");
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/* Resolve operands */
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/* First operand can be either a package or a buffer */
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Status = AcpiExResolveOperands (AML_INDEX_OP, WALK_OPERANDS, WalkState);
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DUMP_OPERANDS (WALK_OPERANDS, IMODE_EXECUTE,
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AcpiPsGetOpcodeName (AML_INDEX_OP),
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3, "after AcpiExResolveOperands");
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/* Get all operands */
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Status |= AcpiDsObjStackPopObject (&ResDesc, WalkState);
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Status |= AcpiDsObjStackPopObject (&IdxDesc, WalkState);
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Status |= AcpiDsObjStackPopObject (&ObjDesc, WalkState);
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if (ACPI_FAILURE (Status))
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{
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/* Invalid parameters on object stack */
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DEBUG_PRINTP (ACPI_ERROR, ("bad operand(s) (Status=%X)\n",
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Status));
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goto Cleanup;
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}
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/* Create the internal return object */
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RetDesc = AcpiUtCreateInternalObject (INTERNAL_TYPE_REFERENCE);
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if (!RetDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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/*
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* At this point, the ObjDesc operand is either a Package or a Buffer
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*/
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if (ObjDesc->Common.Type == ACPI_TYPE_PACKAGE)
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{
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/* Object to be indexed is a Package */
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if (IdxDesc->Integer.Value >= ObjDesc->Package.Count)
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{
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DEBUG_PRINTP (ACPI_ERROR, ("Index value beyond package end\n"));
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Status = AE_AML_PACKAGE_LIMIT;
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goto Cleanup;
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}
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if ((ResDesc->Common.Type == INTERNAL_TYPE_REFERENCE) &&
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(ResDesc->Reference.Opcode == AML_ZERO_OP))
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{
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/*
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* There is no actual result descriptor (the ZeroOp Result
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* descriptor is a placeholder), so just delete the placeholder and
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* return a reference to the package element
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*/
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AcpiUtRemoveReference (ResDesc);
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}
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else
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{
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/*
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* Each element of the package is an internal object. Get the one
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* we are after.
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*/
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TmpDesc = ObjDesc->Package.Elements[IdxDesc->Integer.Value];
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RetDesc->Reference.Opcode = AML_INDEX_OP;
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RetDesc->Reference.TargetType = TmpDesc->Common.Type;
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RetDesc->Reference.Object = TmpDesc;
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Status = AcpiExStore (RetDesc, ResDesc, WalkState);
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RetDesc->Reference.Object = NULL;
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}
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/*
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* The local return object must always be a reference to the package element,
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* not the element itself.
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*/
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RetDesc->Reference.Opcode = AML_INDEX_OP;
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RetDesc->Reference.TargetType = ACPI_TYPE_PACKAGE;
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RetDesc->Reference.Where = &ObjDesc->Package.Elements[IdxDesc->Integer.Value];
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}
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else
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{
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/* Object to be indexed is a Buffer */
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if (IdxDesc->Integer.Value >= ObjDesc->Buffer.Length)
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{
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DEBUG_PRINTP (ACPI_ERROR, ("Index value beyond end of buffer\n"));
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Status = AE_AML_BUFFER_LIMIT;
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goto Cleanup;
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}
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RetDesc->Reference.Opcode = AML_INDEX_OP;
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RetDesc->Reference.TargetType = ACPI_TYPE_BUFFER_FIELD;
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RetDesc->Reference.Object = ObjDesc;
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RetDesc->Reference.Offset = (UINT32) IdxDesc->Integer.Value;
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Status = AcpiExStore (RetDesc, ResDesc, WalkState);
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}
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Cleanup:
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/* Always delete operands */
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AcpiUtRemoveReference (ObjDesc);
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AcpiUtRemoveReference (IdxDesc);
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/* Delete return object on error */
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if (ACPI_FAILURE (Status))
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{
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AcpiUtRemoveReference (ResDesc);
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if (RetDesc)
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{
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AcpiUtRemoveReference (RetDesc);
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RetDesc = NULL;
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}
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}
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/* Set the return object and exit */
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*ReturnDesc = RetDesc;
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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: AcpiExMatch
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*
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* PARAMETERS: none
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Match operator
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*
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* ACPI SPECIFICATION REFERENCES:
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* DefMatch := MatchOp SearchPkg Opcode1 Operand1
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* Opcode2 Operand2 StartIndex
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* Opcode1 := ByteData: MTR, MEQ, MLE, MLT, MGE, or MGT
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* Opcode2 := ByteData: MTR, MEQ, MLE, MLT, MGE, or MGT
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* Operand1 := TermArg=>Integer
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* Operand2 := TermArg=>Integer
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* SearchPkg := TermArg=>PackageObject
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* StartIndex := TermArg=>Integer
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExMatch (
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ACPI_WALK_STATE *WalkState,
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ACPI_OPERAND_OBJECT **ReturnDesc)
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{
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ACPI_OPERAND_OBJECT *PkgDesc;
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ACPI_OPERAND_OBJECT *Op1Desc;
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ACPI_OPERAND_OBJECT *V1Desc;
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ACPI_OPERAND_OBJECT *Op2Desc;
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ACPI_OPERAND_OBJECT *V2Desc;
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ACPI_OPERAND_OBJECT *StartDesc;
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ACPI_OPERAND_OBJECT *RetDesc = NULL;
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ACPI_STATUS Status;
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UINT32 Index;
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UINT32 MatchValue = (UINT32) -1;
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FUNCTION_TRACE ("ExMatch");
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/* Resolve all operands */
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Status = AcpiExResolveOperands (AML_MATCH_OP, WALK_OPERANDS, WalkState);
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DUMP_OPERANDS (WALK_OPERANDS, IMODE_EXECUTE,
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AcpiPsGetOpcodeName (AML_MATCH_OP),
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6, "after AcpiExResolveOperands");
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/* Get all operands */
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Status |= AcpiDsObjStackPopObject (&StartDesc, WalkState);
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Status |= AcpiDsObjStackPopObject (&V2Desc, WalkState);
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Status |= AcpiDsObjStackPopObject (&Op2Desc, WalkState);
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Status |= AcpiDsObjStackPopObject (&V1Desc, WalkState);
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Status |= AcpiDsObjStackPopObject (&Op1Desc, WalkState);
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Status |= AcpiDsObjStackPopObject (&PkgDesc, WalkState);
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if (ACPI_FAILURE (Status))
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{
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/* Invalid parameters on object stack */
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DEBUG_PRINTP (ACPI_ERROR, ("bad operand(s) (Status=%X)\n",
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Status));
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goto Cleanup;
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}
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/* Validate match comparison sub-opcodes */
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if ((Op1Desc->Integer.Value > MAX_MATCH_OPERATOR) ||
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(Op2Desc->Integer.Value > MAX_MATCH_OPERATOR))
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{
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DEBUG_PRINTP (ACPI_ERROR, ("operation encoding out of range\n"));
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Status = AE_AML_OPERAND_VALUE;
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goto Cleanup;
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}
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Index = (UINT32) StartDesc->Integer.Value;
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if (Index >= (UINT32) PkgDesc->Package.Count)
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{
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DEBUG_PRINTP (ACPI_ERROR, ("Start position value out of range\n"));
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Status = AE_AML_PACKAGE_LIMIT;
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goto Cleanup;
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}
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RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
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if (!RetDesc)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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/*
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* Examine each element until a match is found. Within the loop,
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* "continue" signifies that the current element does not match
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* and the next should be examined.
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|
* Upon finding a match, the loop will terminate via "break" at
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* the bottom. If it terminates "normally", MatchValue will be -1
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* (its initial value) indicating that no match was found. When
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* returned as a Number, this will produce the Ones value as specified.
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*/
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for ( ; Index < PkgDesc->Package.Count; ++Index)
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{
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/*
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* Treat any NULL or non-numeric elements as non-matching.
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* TBD [Unhandled] - if an element is a Name,
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* should we examine its value?
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*/
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if (!PkgDesc->Package.Elements[Index] ||
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ACPI_TYPE_INTEGER != PkgDesc->Package.Elements[Index]->Common.Type)
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{
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continue;
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}
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/*
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* Within these switch statements:
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* "break" (exit from the switch) signifies a match;
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* "continue" (proceed to next iteration of enclosing
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* "for" loop) signifies a non-match.
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*/
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switch (Op1Desc->Integer.Value)
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{
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case MATCH_MTR: /* always true */
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break;
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|
|
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case MATCH_MEQ: /* true if equal */
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if (PkgDesc->Package.Elements[Index]->Integer.Value
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!= V1Desc->Integer.Value)
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{
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continue;
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}
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break;
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|
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case MATCH_MLE: /* true if less than or equal */
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
> V1Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MLT: /* true if less than */
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
>= V1Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MGE: /* true if greater than or equal */
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
< V1Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MGT: /* true if greater than */
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
<= V1Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
default: /* undefined */
|
|
|
|
continue;
|
|
}
|
|
|
|
|
|
switch(Op2Desc->Integer.Value)
|
|
{
|
|
|
|
case MATCH_MTR:
|
|
|
|
break;
|
|
|
|
|
|
case MATCH_MEQ:
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
!= V2Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MLE:
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
> V2Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MLT:
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
>= V2Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MGE:
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
< V2Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
case MATCH_MGT:
|
|
|
|
if (PkgDesc->Package.Elements[Index]->Integer.Value
|
|
<= V2Desc->Integer.Value)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
continue;
|
|
}
|
|
|
|
/* Match found: exit from loop */
|
|
|
|
MatchValue = Index;
|
|
break;
|
|
}
|
|
|
|
/* MatchValue is the return value */
|
|
|
|
RetDesc->Integer.Value = MatchValue;
|
|
|
|
|
|
Cleanup:
|
|
|
|
/* Free the operands */
|
|
|
|
AcpiUtRemoveReference (StartDesc);
|
|
AcpiUtRemoveReference (V2Desc);
|
|
AcpiUtRemoveReference (Op2Desc);
|
|
AcpiUtRemoveReference (V1Desc);
|
|
AcpiUtRemoveReference (Op1Desc);
|
|
AcpiUtRemoveReference (PkgDesc);
|
|
|
|
|
|
/* Delete return object on error */
|
|
|
|
if (ACPI_FAILURE (Status) &&
|
|
(RetDesc))
|
|
{
|
|
AcpiUtRemoveReference (RetDesc);
|
|
RetDesc = NULL;
|
|
}
|
|
|
|
|
|
/* Set the return object and exit */
|
|
|
|
*ReturnDesc = RetDesc;
|
|
return_ACPI_STATUS (Status);
|
|
}
|