1084 lines
32 KiB
C
1084 lines
32 KiB
C
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|
/******************************************************************************
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*
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* Module Name: exmonad - ACPI AML execution for monadic (1 operand) operators
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* $Revision: 113 $
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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
|
|
* Code or modification without rights to further distribute source must
|
|
* include the following Disclaimer and Export Compliance provision in the
|
|
* 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 __EXMONAD_C__
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#include "acpi.h"
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#include "acparser.h"
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#include "acdispat.h"
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#include "acinterp.h"
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#include "amlcode.h"
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#include "acnamesp.h"
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#define _COMPONENT ACPI_EXECUTER
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MODULE_NAME ("exmonad")
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/*******************************************************************************
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*
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* FUNCTION: AcpiExGetObjectReference
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*
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* PARAMETERS: ObjDesc - Create a reference to this object
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* RetDesc - Where to store the reference
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*
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* RETURN: Status
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*
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* DESCRIPTION: Obtain and return a "reference" to the target object
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* Common code for the RefOfOp and the CondRefOfOp.
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*
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******************************************************************************/
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static ACPI_STATUS
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AcpiExGetObjectReference (
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ACPI_OPERAND_OBJECT *ObjDesc,
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ACPI_OPERAND_OBJECT **RetDesc,
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status = AE_OK;
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FUNCTION_TRACE_PTR ("ExGetObjectReference", ObjDesc);
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if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_INTERNAL))
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{
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if (ObjDesc->Common.Type != INTERNAL_TYPE_REFERENCE)
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{
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*RetDesc = NULL;
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Status = AE_TYPE;
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goto Cleanup;
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}
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/*
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* Not a Name -- an indirect name pointer would have
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* been converted to a direct name pointer in AcpiExResolveOperands
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*/
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switch (ObjDesc->Reference.Opcode)
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{
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case AML_LOCAL_OP:
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case AML_ARG_OP:
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*RetDesc = (void *) AcpiDsMethodDataGetNode (ObjDesc->Reference.Opcode,
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ObjDesc->Reference.Offset, WalkState);
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break;
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default:
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ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "(Internal) Unknown Ref subtype %02x\n",
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ObjDesc->Reference.Opcode));
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*RetDesc = NULL;
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Status = AE_AML_INTERNAL;
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goto Cleanup;
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}
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}
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else if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED))
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{
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/* Must be a named object; Just return the Node */
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*RetDesc = ObjDesc;
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}
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else
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{
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*RetDesc = NULL;
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Status = AE_TYPE;
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}
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Cleanup:
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p Ref=%p\n", ObjDesc, *RetDesc));
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return_ACPI_STATUS (Status);
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}
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#define ObjDesc Operand[0]
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#define ResDesc Operand[1]
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/*******************************************************************************
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*
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* FUNCTION: AcpiExMonadic1
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*
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* PARAMETERS: WalkState - Current state (contains AML opcode)
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Type 1 monadic operator with numeric operand on
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* object stack
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExMonadic1 (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
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ACPI_STATUS Status;
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FUNCTION_TRACE_PTR ("ExMonadic1", WALK_OPERANDS);
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/* Examine the opcode */
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switch (WalkState->Opcode)
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{
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case AML_RELEASE_OP: /* Release (MutexObject) */
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Status = AcpiExReleaseMutex (ObjDesc, WalkState);
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break;
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case AML_RESET_OP: /* Reset (EventObject) */
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Status = AcpiExSystemResetEvent (ObjDesc);
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break;
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case AML_SIGNAL_OP: /* Signal (EventObject) */
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Status = AcpiExSystemSignalEvent (ObjDesc);
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break;
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case AML_SLEEP_OP: /* Sleep (MsecTime) */
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AcpiExSystemDoSuspend ((UINT32) ObjDesc->Integer.Value);
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break;
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case AML_STALL_OP: /* Stall (UsecTime) */
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AcpiExSystemDoStall ((UINT32) ObjDesc->Integer.Value);
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break;
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default: /* Unknown opcode */
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REPORT_ERROR (("AcpiExMonadic1: Unknown monadic opcode %X\n",
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WalkState->Opcode));
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Status = AE_AML_BAD_OPCODE;
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break;
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}
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/* Always delete the operand */
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AcpiUtRemoveReference (ObjDesc);
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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: AcpiExMonadic2R
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*
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* PARAMETERS: WalkState - Current state (contains AML opcode)
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*
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* RETURN: Status
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*
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* DESCRIPTION: Execute Type 2 monadic operator with numeric operand and
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* result operand on operand stack
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiExMonadic2R (
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ACPI_WALK_STATE *WalkState)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
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ACPI_OPERAND_OBJECT *RetDesc = NULL;
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ACPI_OPERAND_OBJECT *RetDesc2 = NULL;
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UINT32 Temp32;
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UINT32 i;
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UINT32 j;
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ACPI_INTEGER Digit;
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FUNCTION_TRACE_PTR ("ExMonadic2R", WALK_OPERANDS);
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|
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/* Create a return object of type NUMBER for most opcodes */
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switch (WalkState->Opcode)
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{
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case AML_BIT_NOT_OP:
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case AML_FIND_SET_LEFT_BIT_OP:
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case AML_FIND_SET_RIGHT_BIT_OP:
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case AML_FROM_BCD_OP:
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case AML_TO_BCD_OP:
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case AML_COND_REF_OF_OP:
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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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break;
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}
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|
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switch (WalkState->Opcode)
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{
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case AML_BIT_NOT_OP: /* Not (Operand, Result) */
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RetDesc->Integer.Value = ~ObjDesc->Integer.Value;
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break;
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case AML_FIND_SET_LEFT_BIT_OP: /* FindSetLeftBit (Operand, Result) */
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|
|
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RetDesc->Integer.Value = ObjDesc->Integer.Value;
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/*
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* Acpi specification describes Integer type as a little
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* endian unsigned value, so this boundary condition is valid.
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*/
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for (Temp32 = 0; RetDesc->Integer.Value && Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32)
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{
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RetDesc->Integer.Value >>= 1;
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}
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RetDesc->Integer.Value = Temp32;
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break;
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|
|
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case AML_FIND_SET_RIGHT_BIT_OP: /* FindSetRightBit (Operand, Result) */
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|
|
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RetDesc->Integer.Value = ObjDesc->Integer.Value;
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|
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/*
|
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* The Acpi specification describes Integer type as a little
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* endian unsigned value, so this boundary condition is valid.
|
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*/
|
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for (Temp32 = 0; RetDesc->Integer.Value && Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32)
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{
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RetDesc->Integer.Value <<= 1;
|
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}
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|
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/* Since returns must be 1-based, subtract from 33 (65) */
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|
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RetDesc->Integer.Value = Temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - Temp32;
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break;
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|
|
|
|
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case AML_FROM_BCD_OP: /* FromBcd (BCDValue, Result) */
|
|
|
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/*
|
|
* The 64-bit ACPI integer can hold 16 4-bit BCD integers
|
|
*/
|
|
RetDesc->Integer.Value = 0;
|
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for (i = 0; i < ACPI_MAX_BCD_DIGITS; i++)
|
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{
|
|
/* Get one BCD digit */
|
|
|
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Digit = (ACPI_INTEGER) ((ObjDesc->Integer.Value >> (i * 4)) & 0xF);
|
|
|
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/* Check the range of the digit */
|
|
|
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if (Digit > 9)
|
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{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "BCD digit too large: \n",
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Digit));
|
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Status = AE_AML_NUMERIC_OVERFLOW;
|
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goto Cleanup;
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}
|
|
|
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if (Digit > 0)
|
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{
|
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/* Sum into the result with the appropriate power of 10 */
|
|
|
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for (j = 0; j < i; j++)
|
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{
|
|
Digit *= 10;
|
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}
|
|
|
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RetDesc->Integer.Value += Digit;
|
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}
|
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}
|
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break;
|
|
|
|
|
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case AML_TO_BCD_OP: /* ToBcd (Operand, Result) */
|
|
|
|
if (ObjDesc->Integer.Value > ACPI_MAX_BCD_VALUE)
|
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{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "BCD overflow: %d\n",
|
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ObjDesc->Integer.Value));
|
|
Status = AE_AML_NUMERIC_OVERFLOW;
|
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goto Cleanup;
|
|
}
|
|
|
|
RetDesc->Integer.Value = 0;
|
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for (i = 0; i < ACPI_MAX_BCD_DIGITS; i++)
|
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{
|
|
/* Divide by nth factor of 10 */
|
|
|
|
Temp32 = 0;
|
|
Digit = ObjDesc->Integer.Value;
|
|
for (j = 0; j < i; j++)
|
|
{
|
|
AcpiUtShortDivide (&Digit, 10, &Digit, &Temp32);
|
|
}
|
|
|
|
/* Create the BCD digit from the remainder above */
|
|
|
|
if (Digit > 0)
|
|
{
|
|
RetDesc->Integer.Value += (Temp32 << (i * 4));
|
|
}
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_COND_REF_OF_OP: /* CondRefOf (SourceObject, Result) */
|
|
|
|
/*
|
|
* This op is a little strange because the internal return value is
|
|
* different than the return value stored in the result descriptor
|
|
* (There are really two return values)
|
|
*/
|
|
if ((ACPI_NAMESPACE_NODE *) ObjDesc == AcpiGbl_RootNode)
|
|
{
|
|
/*
|
|
* This means that the object does not exist in the namespace,
|
|
* return FALSE
|
|
*/
|
|
RetDesc->Integer.Value = 0;
|
|
|
|
/*
|
|
* Must delete the result descriptor since there is no reference
|
|
* being returned
|
|
*/
|
|
AcpiUtRemoveReference (ResDesc);
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Get the object reference and store it */
|
|
|
|
Status = AcpiExGetObjectReference (ObjDesc, &RetDesc2, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
Status = AcpiExStore (RetDesc2, ResDesc, WalkState);
|
|
|
|
/* The object exists in the namespace, return TRUE */
|
|
|
|
RetDesc->Integer.Value = ACPI_INTEGER_MAX;
|
|
goto Cleanup;
|
|
break;
|
|
|
|
|
|
case AML_STORE_OP: /* Store (Source, Target) */
|
|
|
|
/*
|
|
* A store operand is typically a number, string, buffer or lvalue
|
|
* Be careful about deleting the source object,
|
|
* since the object itself may have been stored.
|
|
*/
|
|
Temp32 = ObjDesc->Common.ReferenceCount;
|
|
Status = AcpiExStore (ObjDesc, ResDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
/* On failure, just delete the ObjDesc */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
#if 0
|
|
if ((ObjDesc->Common.ReferenceCount > Temp32) &&
|
|
(!AcpiDsIsResultUsed (WalkState->Op, WalkState)))
|
|
{
|
|
ObjDesc->Common.ReferenceCount++;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Normally, we would remove a reference on the ObjDesc parameter;
|
|
* But since it is being used as the internal return object
|
|
* (meaning we would normally increment it), the two cancel out,
|
|
* and we simply don't do anything.
|
|
*/
|
|
WalkState->ResultObj = ObjDesc;
|
|
return_ACPI_STATUS (Status);
|
|
break;
|
|
|
|
|
|
/*
|
|
* ACPI 2.0 Opcodes
|
|
*/
|
|
case AML_TO_DECSTRING_OP: /* ToDecimalString (Data, Result) */
|
|
|
|
Status = AcpiExConvertToString (ObjDesc, &RetDesc, 10, ACPI_UINT32_MAX, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TO_HEXSTRING_OP: /* ToHexString (Data, Result) */
|
|
|
|
Status = AcpiExConvertToString (ObjDesc, &RetDesc, 16, ACPI_UINT32_MAX, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TO_BUFFER_OP: /* ToBuffer (Data, Result) */
|
|
|
|
Status = AcpiExConvertToBuffer (ObjDesc, &RetDesc, WalkState);
|
|
break;
|
|
|
|
|
|
case AML_TO_INTEGER_OP: /* ToInteger (Data, Result) */
|
|
|
|
Status = AcpiExConvertToInteger (ObjDesc, &RetDesc, WalkState);
|
|
break;
|
|
|
|
|
|
/*
|
|
* These are two obsolete opcodes
|
|
*/
|
|
case AML_SHIFT_LEFT_BIT_OP: /* ShiftLeftBit (Source, BitNum) */
|
|
case AML_SHIFT_RIGHT_BIT_OP: /* ShiftRightBit (Source, BitNum) */
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s is unimplemented\n",
|
|
AcpiPsGetOpcodeName (WalkState->Opcode)));
|
|
Status = AE_SUPPORT;
|
|
goto Cleanup;
|
|
break;
|
|
|
|
|
|
default: /* Unknown opcode */
|
|
|
|
REPORT_ERROR (("AcpiExMonadic2R: Unknown monadic opcode %X\n",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
/*
|
|
* Store the return value computed above into the result object
|
|
*/
|
|
Status = AcpiExStore (RetDesc, ResDesc, WalkState);
|
|
|
|
|
|
Cleanup:
|
|
/* Always delete the operand object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
|
|
/* Delete return object(s) on error */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (ResDesc); /* Result descriptor */
|
|
if (RetDesc)
|
|
{
|
|
AcpiUtRemoveReference (RetDesc);
|
|
RetDesc = NULL;
|
|
}
|
|
}
|
|
|
|
/* Set the return object and exit */
|
|
|
|
WalkState->ResultObj = RetDesc;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiExMonadic2
|
|
*
|
|
* PARAMETERS: WalkState - Current state (contains AML opcode)
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Execute Type 2 monadic operator with numeric operand:
|
|
* DerefOfOp, RefOfOp, SizeOfOp, TypeOp, IncrementOp,
|
|
* DecrementOp, LNotOp,
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiExMonadic2 (
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
|
|
ACPI_OPERAND_OBJECT *TmpDesc;
|
|
ACPI_OPERAND_OBJECT *RetDesc = NULL;
|
|
ACPI_STATUS Status = AE_OK;
|
|
UINT32 Type;
|
|
ACPI_INTEGER Value;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("ExMonadic2", WALK_OPERANDS);
|
|
|
|
|
|
|
|
|
|
/* Get the operand and decode the opcode */
|
|
|
|
switch (WalkState->Opcode)
|
|
{
|
|
|
|
case AML_LNOT_OP: /* LNot (Operand) */
|
|
|
|
RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!RetDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
RetDesc->Integer.Value = !ObjDesc->Integer.Value;
|
|
break;
|
|
|
|
|
|
case AML_DECREMENT_OP: /* Decrement (Operand) */
|
|
case AML_INCREMENT_OP: /* Increment (Operand) */
|
|
|
|
/*
|
|
* Since we are expecting an Reference on the top of the stack, it
|
|
* can be either an Node or an internal object.
|
|
*
|
|
* TBD: [Future] This may be the prototype code for all cases where
|
|
* a Reference is expected!! 10/99
|
|
*/
|
|
if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
RetDesc = ObjDesc;
|
|
}
|
|
|
|
else
|
|
{
|
|
/*
|
|
* Duplicate the Reference in a new object so that we can resolve it
|
|
* without destroying the original Reference object
|
|
*/
|
|
RetDesc = AcpiUtCreateInternalObject (INTERNAL_TYPE_REFERENCE);
|
|
if (!RetDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
RetDesc->Reference.Opcode = ObjDesc->Reference.Opcode;
|
|
RetDesc->Reference.Offset = ObjDesc->Reference.Offset;
|
|
RetDesc->Reference.Object = ObjDesc->Reference.Object;
|
|
}
|
|
|
|
|
|
/*
|
|
* Convert the RetDesc Reference to a Number
|
|
* (This deletes the original RetDesc object)
|
|
*/
|
|
Status = AcpiExResolveOperands (AML_LNOT_OP, &RetDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "%s: bad operand(s) %s\n",
|
|
AcpiPsGetOpcodeName (WalkState->Opcode), AcpiFormatException(Status)));
|
|
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Do the actual increment or decrement */
|
|
|
|
if (AML_INCREMENT_OP == WalkState->Opcode)
|
|
{
|
|
RetDesc->Integer.Value++;
|
|
}
|
|
else
|
|
{
|
|
RetDesc->Integer.Value--;
|
|
}
|
|
|
|
/* Store the result back in the original descriptor */
|
|
|
|
Status = AcpiExStore (RetDesc, ObjDesc, WalkState);
|
|
|
|
/* Objdesc was just deleted (because it is an Reference) */
|
|
|
|
ObjDesc = NULL;
|
|
|
|
break;
|
|
|
|
|
|
case AML_TYPE_OP: /* ObjectType (SourceObject) */
|
|
|
|
if (INTERNAL_TYPE_REFERENCE == ObjDesc->Common.Type)
|
|
{
|
|
/*
|
|
* Not a Name -- an indirect name pointer would have
|
|
* been converted to a direct name pointer in ResolveOperands
|
|
*/
|
|
switch (ObjDesc->Reference.Opcode)
|
|
{
|
|
case AML_ZERO_OP:
|
|
case AML_ONE_OP:
|
|
case AML_ONES_OP:
|
|
case AML_REVISION_OP:
|
|
|
|
/* Constants are of type Number */
|
|
|
|
Type = ACPI_TYPE_INTEGER;
|
|
break;
|
|
|
|
|
|
case AML_DEBUG_OP:
|
|
|
|
/* Per 1.0b spec, Debug object is of type "DebugObject" */
|
|
|
|
Type = ACPI_TYPE_DEBUG_OBJECT;
|
|
break;
|
|
|
|
|
|
case AML_INDEX_OP:
|
|
|
|
/* Get the type of this reference (index into another object) */
|
|
|
|
Type = ObjDesc->Reference.TargetType;
|
|
if (Type == ACPI_TYPE_PACKAGE)
|
|
{
|
|
/*
|
|
* The main object is a package, we want to get the type
|
|
* of the individual package element that is referenced by
|
|
* the index.
|
|
*/
|
|
Type = (*(ObjDesc->Reference.Where))->Common.Type;
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
case AML_LOCAL_OP:
|
|
case AML_ARG_OP:
|
|
|
|
Type = AcpiDsMethodDataGetType (ObjDesc->Reference.Opcode,
|
|
ObjDesc->Reference.Offset, WalkState);
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
REPORT_ERROR (("AcpiExMonadic2/TypeOp: Internal error - Unknown Reference subtype %X\n",
|
|
ObjDesc->Reference.Opcode));
|
|
Status = AE_AML_INTERNAL;
|
|
goto Cleanup;
|
|
}
|
|
}
|
|
|
|
else
|
|
{
|
|
/*
|
|
* It's not a Reference, so it must be a direct name pointer.
|
|
*/
|
|
Type = AcpiNsGetType ((ACPI_NAMESPACE_NODE *) ObjDesc);
|
|
|
|
/* Convert internal types to external types */
|
|
|
|
switch (Type)
|
|
{
|
|
case INTERNAL_TYPE_REGION_FIELD:
|
|
case INTERNAL_TYPE_BANK_FIELD:
|
|
case INTERNAL_TYPE_INDEX_FIELD:
|
|
|
|
Type = ACPI_TYPE_FIELD_UNIT;
|
|
}
|
|
|
|
}
|
|
|
|
/* Allocate a descriptor to hold the type. */
|
|
|
|
RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!RetDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
RetDesc->Integer.Value = Type;
|
|
break;
|
|
|
|
|
|
case AML_SIZE_OF_OP: /* SizeOf (SourceObject) */
|
|
|
|
if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
ObjDesc = AcpiNsGetAttachedObject ((ACPI_NAMESPACE_NODE *) ObjDesc);
|
|
}
|
|
|
|
if (!ObjDesc)
|
|
{
|
|
Value = 0;
|
|
}
|
|
|
|
else
|
|
{
|
|
switch (ObjDesc->Common.Type)
|
|
{
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
Value = ObjDesc->Buffer.Length;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
Value = ObjDesc->String.Length;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
|
|
Value = ObjDesc->Package.Count;
|
|
break;
|
|
|
|
case INTERNAL_TYPE_REFERENCE:
|
|
|
|
Value = 4;
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Not Buf/Str/Pkg - found type %X\n",
|
|
ObjDesc->Common.Type));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Now that we have the size of the object, create a result
|
|
* object to hold the value
|
|
*/
|
|
RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!RetDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
RetDesc->Integer.Value = Value;
|
|
break;
|
|
|
|
|
|
case AML_REF_OF_OP: /* RefOf (SourceObject) */
|
|
|
|
Status = AcpiExGetObjectReference (ObjDesc, &RetDesc, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
break;
|
|
|
|
|
|
case AML_DEREF_OF_OP: /* DerefOf (ObjReference) */
|
|
|
|
/* Check for a method local or argument */
|
|
|
|
if (!VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
/*
|
|
* Must resolve/dereference the local/arg reference first
|
|
*/
|
|
switch (ObjDesc->Reference.Opcode)
|
|
{
|
|
/* Set ObjDesc to the value of the local/arg */
|
|
|
|
case AML_LOCAL_OP:
|
|
case AML_ARG_OP:
|
|
|
|
AcpiDsMethodDataGetValue (ObjDesc->Reference.Opcode,
|
|
ObjDesc->Reference.Offset, WalkState, &TmpDesc);
|
|
|
|
/*
|
|
* Delete our reference to the input object and
|
|
* point to the object just retrieved
|
|
*/
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
ObjDesc = TmpDesc;
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Index op - handled below */
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* ObjDesc may have changed from the code above */
|
|
|
|
if (VALID_DESCRIPTOR_TYPE (ObjDesc, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
/* Get the actual object from the Node (This is the dereference) */
|
|
|
|
RetDesc = ((ACPI_NAMESPACE_NODE *) ObjDesc)->Object;
|
|
|
|
/* Returning a pointer to the object, add another reference! */
|
|
|
|
AcpiUtAddReference (RetDesc);
|
|
}
|
|
|
|
else
|
|
{
|
|
/*
|
|
* This must be a reference object produced by the Index
|
|
* ASL operation -- check internal opcode
|
|
*/
|
|
if ((ObjDesc->Reference.Opcode != AML_INDEX_OP) &&
|
|
(ObjDesc->Reference.Opcode != AML_REF_OF_OP))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown opcode in ref(%p) - %X\n",
|
|
ObjDesc, ObjDesc->Reference.Opcode));
|
|
|
|
Status = AE_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
switch (ObjDesc->Reference.Opcode)
|
|
{
|
|
case AML_INDEX_OP:
|
|
|
|
/*
|
|
* Supported target types for the Index operator are
|
|
* 1) A Buffer
|
|
* 2) A Package
|
|
*/
|
|
if (ObjDesc->Reference.TargetType == ACPI_TYPE_BUFFER_FIELD)
|
|
{
|
|
/*
|
|
* The target is a buffer, we must create a new object that
|
|
* contains one element of the buffer, the element pointed
|
|
* to by the index.
|
|
*
|
|
* NOTE: index into a buffer is NOT a pointer to a
|
|
* sub-buffer of the main buffer, it is only a pointer to a
|
|
* single element (byte) of the buffer!
|
|
*/
|
|
RetDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
|
|
if (!RetDesc)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
goto Cleanup;
|
|
}
|
|
|
|
TmpDesc = ObjDesc->Reference.Object;
|
|
RetDesc->Integer.Value =
|
|
TmpDesc->Buffer.Pointer[ObjDesc->Reference.Offset];
|
|
|
|
/* TBD: [Investigate] (see below) Don't add an additional
|
|
* ref!
|
|
*/
|
|
}
|
|
|
|
else if (ObjDesc->Reference.TargetType == ACPI_TYPE_PACKAGE)
|
|
{
|
|
/*
|
|
* The target is a package, we want to return the referenced
|
|
* element of the package. We must add another reference to
|
|
* this object, however.
|
|
*/
|
|
RetDesc = *(ObjDesc->Reference.Where);
|
|
if (!RetDesc)
|
|
{
|
|
/*
|
|
* We can't return a NULL dereferenced value. This is
|
|
* an uninitialized package element and is thus a
|
|
* severe error.
|
|
*/
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "NULL package element obj %p\n",
|
|
ObjDesc));
|
|
Status = AE_AML_UNINITIALIZED_ELEMENT;
|
|
goto Cleanup;
|
|
}
|
|
|
|
AcpiUtAddReference (RetDesc);
|
|
}
|
|
|
|
else
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown TargetType %X in obj %p\n",
|
|
ObjDesc->Reference.TargetType, ObjDesc));
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
case AML_REF_OF_OP:
|
|
|
|
RetDesc = ObjDesc->Reference.Object;
|
|
|
|
/* Add another reference to the object! */
|
|
|
|
AcpiUtAddReference (RetDesc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
REPORT_ERROR (("AcpiExMonadic2: Unknown monadic opcode %X\n",
|
|
WalkState->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
Cleanup:
|
|
|
|
if (ObjDesc)
|
|
{
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
}
|
|
|
|
/* Delete return object on error */
|
|
|
|
if (ACPI_FAILURE (Status) &&
|
|
(RetDesc))
|
|
{
|
|
AcpiUtRemoveReference (RetDesc);
|
|
RetDesc = NULL;
|
|
}
|
|
|
|
WalkState->ResultObj = RetDesc;
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|