1043 lines
30 KiB
C
1043 lines
30 KiB
C
/******************************************************************************
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*
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* Module Name: dsopcode - Dispatcher Op Region support and handling of
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* "control" opcodes
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* $Revision: 66 $
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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 __DSOPCODE_C__
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#include "acpi.h"
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#include "acparser.h"
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#include "amlcode.h"
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#include "acdispat.h"
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#include "acinterp.h"
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#include "acnamesp.h"
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#include "acevents.h"
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#include "actables.h"
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#define _COMPONENT ACPI_DISPATCHER
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MODULE_NAME ("dsopcode")
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/*****************************************************************************
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*
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* FUNCTION: AcpiDsExecuteArguments
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*
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* PARAMETERS: Node - Parent NS node
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* ExtraDesc - Has AML pointer and length
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Late execution of region or field arguments
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*
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****************************************************************************/
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ACPI_STATUS
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AcpiDsExecuteArguments (
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ACPI_NAMESPACE_NODE *Node,
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ACPI_OPERAND_OBJECT *ExtraDesc)
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{
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ACPI_STATUS Status;
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ACPI_PARSE_OBJECT *Op;
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ACPI_WALK_STATE *WalkState;
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ACPI_PARSE_OBJECT *Arg;
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FUNCTION_TRACE ("AcpiDsExecuteArguments");
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/*
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* Allocate a new parser op to be the root of the parsed
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* BufferField tree
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*/
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Op = AcpiPsAllocOp (AML_SCOPE_OP);
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if (!Op)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Save the Node for use in AcpiPsParseAml */
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Op->Node = AcpiNsGetParentObject (Node);
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/* Create and initialize a new parser state */
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WalkState = AcpiDsCreateWalkState (TABLE_ID_DSDT, NULL, NULL, NULL);
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if (!WalkState)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, ExtraDesc->Extra.AmlStart,
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ExtraDesc->Extra.AmlLength, NULL, NULL, 1);
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if (ACPI_FAILURE (Status))
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{
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AcpiDsDeleteWalkState (WalkState);
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return_ACPI_STATUS (Status);
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}
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WalkState->ParseFlags = 0;
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/* Pass1: Parse the entire BufferField declaration */
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Status = AcpiPsParseAml (WalkState);
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if (ACPI_FAILURE (Status))
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{
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AcpiPsDeleteParseTree (Op);
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return_ACPI_STATUS (Status);
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}
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/* Get and init the actual FieldUnit Op created above */
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Arg = Op->Value.Arg;
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Op->Node = Node;
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Arg->Node = Node;
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AcpiPsDeleteParseTree (Op);
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/* Evaluate the address and length arguments for the Buffer Field */
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Op = AcpiPsAllocOp (AML_SCOPE_OP);
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if (!Op)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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Op->Node = AcpiNsGetParentObject (Node);
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/* Create and initialize a new parser state */
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WalkState = AcpiDsCreateWalkState (TABLE_ID_DSDT, NULL, NULL, NULL);
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if (!WalkState)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, ExtraDesc->Extra.AmlStart,
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ExtraDesc->Extra.AmlLength, NULL, NULL, 3);
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if (ACPI_FAILURE (Status))
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{
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AcpiDsDeleteWalkState (WalkState);
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return_ACPI_STATUS (Status);
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}
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Status = AcpiPsParseAml (WalkState);
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AcpiPsDeleteParseTree (Op);
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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: AcpiDsGetBufferFieldArguments
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*
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* PARAMETERS: ObjDesc - A valid BufferField object
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Get BufferField Buffer and Index. This implements the late
|
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* evaluation of these field attributes.
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*
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****************************************************************************/
|
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ACPI_STATUS
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AcpiDsGetBufferFieldArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
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{
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ACPI_OPERAND_OBJECT *ExtraDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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|
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FUNCTION_TRACE_PTR ("DsGetBufferFieldArguments", ObjDesc);
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if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Get the AML pointer (method object) and BufferField node */
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ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
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Node = ObjDesc->BufferField.Node;
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|
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DEBUG_EXEC(AcpiUtDisplayInitPathname (Node, " [Field]"));
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField JIT Init\n",
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(char *) &Node->Name));
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/* Execute the AML code for the TermArg arguments */
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Status = AcpiDsExecuteArguments (Node, ExtraDesc);
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return_ACPI_STATUS (Status);
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}
|
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|
|
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/*****************************************************************************
|
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*
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* FUNCTION: AcpiDsGetRegionArguments
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*
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* PARAMETERS: ObjDesc - A valid region object
|
|
*
|
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* RETURN: Status.
|
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*
|
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* DESCRIPTION: Get region address and length. This implements the late
|
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* evaluation of these region attributes.
|
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*
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****************************************************************************/
|
|
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ACPI_STATUS
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AcpiDsGetRegionArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
|
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{
|
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ACPI_NAMESPACE_NODE *Node;
|
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ACPI_STATUS Status;
|
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ACPI_OPERAND_OBJECT *RegionObj2;
|
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|
|
|
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FUNCTION_TRACE_PTR ("DsGetRegionArguments", ObjDesc);
|
|
|
|
|
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if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
|
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{
|
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return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
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RegionObj2 = AcpiNsGetSecondaryObject (ObjDesc);
|
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if (!RegionObj2)
|
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{
|
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return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
/* Get the AML pointer (method object) and region node */
|
|
|
|
Node = ObjDesc->Region.Node;
|
|
|
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DEBUG_EXEC(AcpiUtDisplayInitPathname (Node, " [Operation Region]"));
|
|
|
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Init at AML %p\n",
|
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(char *) &Node->Name, RegionObj2->Extra.AmlStart));
|
|
|
|
|
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Status = AcpiDsExecuteArguments (Node, RegionObj2);
|
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|
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return_ACPI_STATUS (Status);
|
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}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsInitializeRegion
|
|
*
|
|
* PARAMETERS: Op - A valid region Op object
|
|
*
|
|
* RETURN: Status
|
|
*
|
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* DESCRIPTION:
|
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*
|
|
****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsInitializeRegion (
|
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ACPI_HANDLE ObjHandle)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
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ObjDesc = AcpiNsGetAttachedObject (ObjHandle);
|
|
|
|
/* Namespace is NOT locked */
|
|
|
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Status = AcpiEvInitializeRegion (ObjDesc, FALSE);
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsEvalBufferFieldOperands
|
|
*
|
|
* PARAMETERS: Op - A valid BufferField Op object
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get BufferField Buffer and Index
|
|
* Called from AcpiDsExecEndOp during BufferField parse tree walk
|
|
*
|
|
****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsEvalBufferFieldOperands (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
UINT32 Offset;
|
|
UINT32 BitOffset;
|
|
UINT32 BitCount;
|
|
UINT8 FieldFlags;
|
|
ACPI_OPERAND_OBJECT *ResDesc = NULL;
|
|
ACPI_OPERAND_OBJECT *CntDesc = NULL;
|
|
ACPI_OPERAND_OBJECT *OffDesc = NULL;
|
|
ACPI_OPERAND_OBJECT *SrcDesc = NULL;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("DsEvalBufferFieldOperands", Op);
|
|
|
|
|
|
/*
|
|
* This is where we evaluate the address and length fields of the
|
|
* CreateXxxField declaration
|
|
*/
|
|
Node = Op->Node;
|
|
|
|
/* NextOp points to the op that holds the Buffer */
|
|
|
|
NextOp = Op->Value.Arg;
|
|
|
|
/* AcpiEvaluate/create the address and length operands */
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, NextOp);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
/* Resolve the operands */
|
|
|
|
Status = AcpiExResolveOperands (Op->Opcode, WALK_OPERANDS, WalkState);
|
|
DUMP_OPERANDS (WALK_OPERANDS, IMODE_EXECUTE, AcpiPsGetOpcodeName (Op->Opcode),
|
|
WalkState->NumOperands, "after AcpiExResolveOperands");
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "(%s) bad operand(s) (%X)\n",
|
|
AcpiPsGetOpcodeName (Op->Opcode), Status));
|
|
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Get the operands */
|
|
|
|
if (AML_CREATE_FIELD_OP == Op->Opcode)
|
|
{
|
|
ResDesc = WalkState->Operands[3];
|
|
CntDesc = WalkState->Operands[2];
|
|
}
|
|
else
|
|
{
|
|
ResDesc = WalkState->Operands[2];
|
|
}
|
|
|
|
OffDesc = WalkState->Operands[1];
|
|
SrcDesc = WalkState->Operands[0];
|
|
Offset = (UINT32) OffDesc->Integer.Value;
|
|
|
|
/*
|
|
* If ResDesc is a Name, it will be a direct name pointer after
|
|
* AcpiExResolveOperands()
|
|
*/
|
|
if (!VALID_DESCRIPTOR_TYPE (ResDesc, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "(%s) destination must be a Node\n",
|
|
AcpiPsGetOpcodeName (Op->Opcode)));
|
|
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Setup the Bit offsets and counts, according to the opcode
|
|
*/
|
|
switch (Op->Opcode)
|
|
{
|
|
|
|
case AML_CREATE_FIELD_OP:
|
|
|
|
/* Offset is in bits, count is in bits */
|
|
|
|
BitOffset = Offset;
|
|
BitCount = (UINT32) CntDesc->Integer.Value;
|
|
FieldFlags = AML_FIELD_ACCESS_BYTE;
|
|
break;
|
|
|
|
case AML_CREATE_BIT_FIELD_OP:
|
|
|
|
/* Offset is in bits, Field is one bit */
|
|
|
|
BitOffset = Offset;
|
|
BitCount = 1;
|
|
FieldFlags = AML_FIELD_ACCESS_BYTE;
|
|
break;
|
|
|
|
case AML_CREATE_BYTE_FIELD_OP:
|
|
|
|
/* Offset is in bytes, field is one byte */
|
|
|
|
BitOffset = 8 * Offset;
|
|
BitCount = 8;
|
|
FieldFlags = AML_FIELD_ACCESS_BYTE;
|
|
break;
|
|
|
|
case AML_CREATE_WORD_FIELD_OP:
|
|
|
|
/* Offset is in bytes, field is one word */
|
|
|
|
BitOffset = 8 * Offset;
|
|
BitCount = 16;
|
|
FieldFlags = AML_FIELD_ACCESS_WORD;
|
|
break;
|
|
|
|
case AML_CREATE_DWORD_FIELD_OP:
|
|
|
|
/* Offset is in bytes, field is one dword */
|
|
|
|
BitOffset = 8 * Offset;
|
|
BitCount = 32;
|
|
FieldFlags = AML_FIELD_ACCESS_DWORD;
|
|
break;
|
|
|
|
case AML_CREATE_QWORD_FIELD_OP:
|
|
|
|
/* Offset is in bytes, field is one qword */
|
|
|
|
BitOffset = 8 * Offset;
|
|
BitCount = 64;
|
|
FieldFlags = AML_FIELD_ACCESS_QWORD;
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Internal error - unknown field creation opcode %02x\n",
|
|
Op->Opcode));
|
|
Status = AE_AML_BAD_OPCODE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Setup field according to the object type
|
|
*/
|
|
switch (SrcDesc->Common.Type)
|
|
{
|
|
|
|
/* SourceBuff := TermArg=>Buffer */
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
if ((BitOffset + BitCount) >
|
|
(8 * (UINT32) SrcDesc->Buffer.Length))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Field size %d exceeds Buffer size %d (bits)\n",
|
|
BitOffset + BitCount, 8 * (UINT32) SrcDesc->Buffer.Length));
|
|
Status = AE_AML_BUFFER_LIMIT;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/*
|
|
* Initialize areas of the field object that are common to all fields
|
|
* For FieldFlags, use LOCK_RULE = 0 (NO_LOCK), UPDATE_RULE = 0 (UPDATE_PRESERVE)
|
|
*/
|
|
Status = AcpiExPrepCommonFieldObject (ObjDesc, FieldFlags, 0,
|
|
BitOffset, BitCount);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
ObjDesc->BufferField.BufferObj = SrcDesc;
|
|
|
|
/* Reference count for SrcDesc inherits ObjDesc count */
|
|
|
|
SrcDesc->Common.ReferenceCount = (UINT16) (SrcDesc->Common.ReferenceCount +
|
|
ObjDesc->Common.ReferenceCount);
|
|
break;
|
|
|
|
|
|
/* Improper object type */
|
|
|
|
default:
|
|
|
|
if ((SrcDesc->Common.Type > (UINT8) INTERNAL_TYPE_REFERENCE) || !AcpiUtValidObjectType (SrcDesc->Common.Type)) /* This line MUST be a single line until AcpiSrc can handle it (block deletion) */
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Tried to create field in invalid object type %X\n",
|
|
SrcDesc->Common.Type));
|
|
}
|
|
|
|
else
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
|
|
"Tried to create field in improper object type - %s\n",
|
|
AcpiUtGetTypeName (SrcDesc->Common.Type)));
|
|
}
|
|
|
|
Status = AE_AML_OPERAND_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
if (AML_CREATE_FIELD_OP == Op->Opcode)
|
|
{
|
|
/* Delete object descriptor unique to CreateField */
|
|
|
|
AcpiUtRemoveReference (CntDesc);
|
|
CntDesc = NULL;
|
|
}
|
|
|
|
|
|
Cleanup:
|
|
|
|
/* Always delete the operands */
|
|
|
|
AcpiUtRemoveReference (OffDesc);
|
|
AcpiUtRemoveReference (SrcDesc);
|
|
|
|
if (AML_CREATE_FIELD_OP == Op->Opcode)
|
|
{
|
|
AcpiUtRemoveReference (CntDesc);
|
|
}
|
|
|
|
/* On failure, delete the result descriptor */
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
AcpiUtRemoveReference (ResDesc); /* Result descriptor */
|
|
}
|
|
|
|
else
|
|
{
|
|
/* Now the address and length are valid for this BufferField */
|
|
|
|
ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsEvalRegionOperands
|
|
*
|
|
* PARAMETERS: Op - A valid region Op object
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get region address and length
|
|
* Called from AcpiDsExecEndOp during OpRegion parse tree walk
|
|
*
|
|
****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsEvalRegionOperands (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_OPERAND_OBJECT *OperandDesc;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_PARSE_OBJECT *NextOp;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("DsEvalRegionOperands", Op);
|
|
|
|
|
|
/*
|
|
* This is where we evaluate the address and length fields of the OpRegion declaration
|
|
*/
|
|
Node = Op->Node;
|
|
|
|
/* NextOp points to the op that holds the SpaceID */
|
|
|
|
NextOp = Op->Value.Arg;
|
|
|
|
/* NextOp points to address op */
|
|
|
|
NextOp = NextOp->Next;
|
|
|
|
/* AcpiEvaluate/create the address and length operands */
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, NextOp);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Resolve the length and address operands to numbers */
|
|
|
|
Status = AcpiExResolveOperands (Op->Opcode, WALK_OPERANDS, WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
DUMP_OPERANDS (WALK_OPERANDS, IMODE_EXECUTE,
|
|
AcpiPsGetOpcodeName (Op->Opcode),
|
|
1, "after AcpiExResolveOperands");
|
|
|
|
|
|
ObjDesc = AcpiNsGetAttachedObject (Node);
|
|
if (!ObjDesc)
|
|
{
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
/*
|
|
* Get the length operand and save it
|
|
* (at Top of stack)
|
|
*/
|
|
OperandDesc = WalkState->Operands[WalkState->NumOperands - 1];
|
|
|
|
ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value;
|
|
AcpiUtRemoveReference (OperandDesc);
|
|
|
|
/*
|
|
* Get the address and save it
|
|
* (at top of stack - 1)
|
|
*/
|
|
OperandDesc = WalkState->Operands[WalkState->NumOperands - 2];
|
|
|
|
ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) OperandDesc->Integer.Value;
|
|
AcpiUtRemoveReference (OperandDesc);
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",
|
|
ObjDesc, HIDWORD(ObjDesc->Region.Address), LODWORD(ObjDesc->Region.Address),
|
|
ObjDesc->Region.Length));
|
|
|
|
/* Now the address and length are valid for this opregion */
|
|
|
|
ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID;
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsExecBeginControlOp
|
|
*
|
|
* PARAMETERS: WalkList - The list that owns the walk stack
|
|
* Op - The control Op
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handles all control ops encountered during control method
|
|
* execution.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsExecBeginControlOp (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_GENERIC_STATE *ControlState;
|
|
|
|
|
|
PROC_NAME ("DsExecBeginControlOp");
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", Op,
|
|
Op->Opcode, WalkState));
|
|
|
|
switch (Op->Opcode)
|
|
{
|
|
case AML_IF_OP:
|
|
case AML_WHILE_OP:
|
|
|
|
/*
|
|
* IF/WHILE: Create a new control state to manage these
|
|
* constructs. We need to manage these as a stack, in order
|
|
* to handle nesting.
|
|
*/
|
|
ControlState = AcpiUtCreateControlState ();
|
|
if (!ControlState)
|
|
{
|
|
Status = AE_NO_MEMORY;
|
|
break;
|
|
}
|
|
|
|
AcpiUtPushGenericState (&WalkState->ControlState, ControlState);
|
|
|
|
/*
|
|
* Save a pointer to the predicate for multiple executions
|
|
* of a loop
|
|
*/
|
|
WalkState->ControlState->Control.AmlPredicateStart =
|
|
WalkState->ParserState.Aml - 1;
|
|
break;
|
|
|
|
case AML_ELSE_OP:
|
|
|
|
/* Predicate is in the state object */
|
|
/* If predicate is true, the IF was executed, ignore ELSE part */
|
|
|
|
if (WalkState->LastPredicate)
|
|
{
|
|
Status = AE_CTRL_TRUE;
|
|
}
|
|
|
|
break;
|
|
|
|
case AML_RETURN_OP:
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsExecEndControlOp
|
|
*
|
|
* PARAMETERS: WalkList - The list that owns the walk stack
|
|
* Op - The control Op
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Handles all control ops encountered during control method
|
|
* execution.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsExecEndControlOp (
|
|
ACPI_WALK_STATE *WalkState,
|
|
ACPI_PARSE_OBJECT *Op)
|
|
{
|
|
ACPI_STATUS Status = AE_OK;
|
|
ACPI_GENERIC_STATE *ControlState;
|
|
|
|
|
|
PROC_NAME ("DsExecEndControlOp");
|
|
|
|
|
|
switch (Op->Opcode)
|
|
{
|
|
case AML_IF_OP:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[IF_OP] Op=%p\n", Op));
|
|
|
|
/*
|
|
* Save the result of the predicate in case there is an
|
|
* ELSE to come
|
|
*/
|
|
WalkState->LastPredicate =
|
|
(BOOLEAN) WalkState->ControlState->Common.Value;
|
|
|
|
/*
|
|
* Pop the control state that was created at the start
|
|
* of the IF and free it
|
|
*/
|
|
ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
|
|
AcpiUtDeleteGenericState (ControlState);
|
|
break;
|
|
|
|
|
|
case AML_ELSE_OP:
|
|
|
|
break;
|
|
|
|
|
|
case AML_WHILE_OP:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", Op));
|
|
|
|
if (WalkState->ControlState->Common.Value)
|
|
{
|
|
/* Predicate was true, go back and evaluate it again! */
|
|
|
|
Status = AE_CTRL_PENDING;
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[WHILE_OP] termination! Op=%p\n", Op));
|
|
|
|
/* Pop this control state and free it */
|
|
|
|
ControlState = AcpiUtPopGenericState (&WalkState->ControlState);
|
|
|
|
WalkState->AmlLastWhile = ControlState->Control.AmlPredicateStart;
|
|
AcpiUtDeleteGenericState (ControlState);
|
|
break;
|
|
|
|
|
|
case AML_RETURN_OP:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"[RETURN_OP] Op=%p Arg=%p\n",Op, Op->Value.Arg));
|
|
|
|
/*
|
|
* One optional operand -- the return value
|
|
* It can be either an immediate operand or a result that
|
|
* has been bubbled up the tree
|
|
*/
|
|
if (Op->Value.Arg)
|
|
{
|
|
/* Return statement has an immediate operand */
|
|
|
|
Status = AcpiDsCreateOperands (WalkState, Op->Value.Arg);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
|
|
/*
|
|
* If value being returned is a Reference (such as
|
|
* an arg or local), resolve it now because it may
|
|
* cease to exist at the end of the method.
|
|
*/
|
|
Status = AcpiExResolveToValue (&WalkState->Operands [0], WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
|
|
/*
|
|
* Get the return value and save as the last result
|
|
* value. This is the only place where WalkState->ReturnDesc
|
|
* is set to anything other than zero!
|
|
*/
|
|
WalkState->ReturnDesc = WalkState->Operands[0];
|
|
}
|
|
|
|
else if ((WalkState->Results) &&
|
|
(WalkState->Results->Results.NumResults > 0))
|
|
{
|
|
/*
|
|
* The return value has come from a previous calculation.
|
|
*
|
|
* If value being returned is a Reference (such as
|
|
* an arg or local), resolve it now because it may
|
|
* cease to exist at the end of the method.
|
|
*
|
|
* Allow references created by the Index operator to return unchanged.
|
|
*/
|
|
if (VALID_DESCRIPTOR_TYPE (WalkState->Results->Results.ObjDesc [0], ACPI_DESC_TYPE_INTERNAL) &&
|
|
((WalkState->Results->Results.ObjDesc [0])->Common.Type == INTERNAL_TYPE_REFERENCE) &&
|
|
((WalkState->Results->Results.ObjDesc [0])->Reference.Opcode != AML_INDEX_OP))
|
|
{
|
|
Status = AcpiExResolveToValue (&WalkState->Results->Results.ObjDesc [0], WalkState);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return (Status);
|
|
}
|
|
}
|
|
|
|
WalkState->ReturnDesc = WalkState->Results->Results.ObjDesc [0];
|
|
}
|
|
|
|
else
|
|
{
|
|
/* No return operand */
|
|
|
|
if (WalkState->NumOperands)
|
|
{
|
|
AcpiUtRemoveReference (WalkState->Operands [0]);
|
|
}
|
|
|
|
WalkState->Operands [0] = NULL;
|
|
WalkState->NumOperands = 0;
|
|
WalkState->ReturnDesc = NULL;
|
|
}
|
|
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
|
|
"Completed RETURN_OP State=%p, RetVal=%p\n",
|
|
WalkState, WalkState->ReturnDesc));
|
|
|
|
/* End the control method execution right now */
|
|
|
|
Status = AE_CTRL_TERMINATE;
|
|
break;
|
|
|
|
|
|
case AML_NOOP_OP:
|
|
|
|
/* Just do nothing! */
|
|
break;
|
|
|
|
|
|
case AML_BREAK_POINT_OP:
|
|
|
|
/* Call up to the OS service layer to handle this */
|
|
|
|
AcpiOsSignal (ACPI_SIGNAL_BREAKPOINT, "Executed AML Breakpoint opcode");
|
|
|
|
/* If and when it returns, all done. */
|
|
|
|
break;
|
|
|
|
|
|
case AML_BREAK_OP:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"Break to end of current package, Op=%p\n", Op));
|
|
|
|
/* TBD: update behavior for ACPI 2.0 */
|
|
|
|
/*
|
|
* As per the ACPI specification:
|
|
* "The break operation causes the current package
|
|
* execution to complete"
|
|
* "Break -- Stop executing the current code package
|
|
* at this point"
|
|
*
|
|
* Returning AE_FALSE here will cause termination of
|
|
* the current package, and execution will continue one
|
|
* level up, starting with the completion of the parent Op.
|
|
*/
|
|
Status = AE_CTRL_FALSE;
|
|
break;
|
|
|
|
|
|
case AML_CONTINUE_OP: /* ACPI 2.0 */
|
|
|
|
Status = AE_NOT_IMPLEMENTED;
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown control opcode=%X Op=%p\n",
|
|
Op->Opcode, Op));
|
|
|
|
Status = AE_AML_BAD_OPCODE;
|
|
break;
|
|
}
|
|
|
|
return (Status);
|
|
}
|
|
|