616 lines
18 KiB
C
616 lines
18 KiB
C
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/******************************************************************************
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*
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* Module Name: aslcodegen - AML code generation
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* $Revision: 51 $
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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 - 2004, 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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#include "aslcompiler.h"
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#include "aslcompiler.y.h"
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#include "amlcode.h"
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#define _COMPONENT ACPI_COMPILER
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ACPI_MODULE_NAME ("aslcodegen")
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/*******************************************************************************
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*
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* FUNCTION: CgGenerateAmlOutput
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*
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* PARAMETERS: None.
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*
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* RETURN: None
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*
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* DESCRIPTION: Generate AML code. Currently generates the listing file
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* simultaneously.
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*
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******************************************************************************/
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void
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CgGenerateAmlOutput (void)
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{
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DbgPrint (ASL_DEBUG_OUTPUT, "\nWriting AML\n\n");
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/* Generate the AML output file */
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FlSeekFile (ASL_FILE_SOURCE_OUTPUT, 0);
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Gbl_SourceLine = 0;
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Gbl_NextError = Gbl_ErrorLog;
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TrWalkParseTree (RootNode, ASL_WALK_VISIT_DOWNWARD, CgAmlWriteWalk, NULL, NULL);
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CgCloseTable ();
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}
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/*******************************************************************************
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*
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* FUNCTION: CgAmlWriteWalk
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*
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* PARAMETERS: ASL_WALK_CALLBACK
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*
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* RETURN: Status
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*
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* DESCRIPTION: Parse tree walk to generate the AML code.
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*
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******************************************************************************/
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ACPI_STATUS
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CgAmlWriteWalk (
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ACPI_PARSE_OBJECT *Op,
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UINT32 Level,
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void *Context)
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{
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/*
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* Debug output
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*/
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DbgPrint (ASL_TREE_OUTPUT,
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"%5.5d [%2d]", Op->Asl.LogicalLineNumber, Level);
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UtPrintFormattedName (Op->Asl.ParseOpcode, Level);
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if (Op->Asl.ParseOpcode == PARSEOP_NAMESEG ||
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Op->Asl.ParseOpcode == PARSEOP_NAMESTRING ||
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Op->Asl.ParseOpcode == PARSEOP_METHODCALL)
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{
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DbgPrint (ASL_TREE_OUTPUT,
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"%10.32s ", Op->Asl.ExternalName);
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}
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else
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{
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DbgPrint (ASL_TREE_OUTPUT, " ");
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}
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DbgPrint (ASL_TREE_OUTPUT,
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"Val-%08X POp-%04X AOp-%04X OpLen-%01X PByts-%01X Len-%04X SubLen-%04X PSubLen-%04X Op-%08X Chld-%08X Paren-%08X Flags-%04X AcTyp-%08X C-%2d L-%d\n",
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(UINT32) Op->Asl.Value.Integer,
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Op->Asl.ParseOpcode,
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Op->Asl.AmlOpcode,
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Op->Asl.AmlOpcodeLength,
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Op->Asl.AmlPkgLenBytes,
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Op->Asl.AmlLength,
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Op->Asl.AmlSubtreeLength,
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Op->Asl.Parent ? Op->Asl.Parent->Asl.AmlSubtreeLength : 0,
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Op,
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Op->Asl.Child,
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Op->Asl.Parent,
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Op->Asl.CompileFlags,
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Op->Asl.AcpiBtype,
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Op->Asl.Column,
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Op->Asl.LineNumber);
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/*
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* Generate the AML for this node
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*/
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CgWriteNode (Op);
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: CgLocalWriteAmlData
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*
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* PARAMETERS: Buffer - Buffer to write
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* Length - Size of data in buffer
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*
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* RETURN: None
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*
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* DESCRIPTION: Write a buffer of AML data to the AML output file.
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*
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******************************************************************************/
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void
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CgLocalWriteAmlData (
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ACPI_PARSE_OBJECT *Op,
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void *Buffer,
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UINT32 Length)
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{
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/* Write the raw data to the AML file */
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FlWriteFile (ASL_FILE_AML_OUTPUT, Buffer, Length);
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/* Update the final AML length for this node (used for listings) */
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if (Op)
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{
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Op->Asl.FinalAmlLength += Length;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: CgWriteAmlOpcode
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*
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* PARAMETERS: Op - Parse node with an AML opcode
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*
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* RETURN: None.
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*
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* DESCRIPTION: Write the AML opcode corresponding to a parse node.
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*
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******************************************************************************/
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void
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CgWriteAmlOpcode (
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ACPI_PARSE_OBJECT *Op)
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{
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union {
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UINT16 Opcode;
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UINT8 OpcodeBytes[2];
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} Aml;
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union {
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UINT32 Len;
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UINT8 LenBytes[4];
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} PkgLen;
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UINT8 PkgLenFirstByte;
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UINT32 i;
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/* We expect some DEFAULT_ARGs, just ignore them */
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if (Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG)
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{
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return;
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}
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switch (Op->Asl.AmlOpcode)
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{
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case AML_UNASSIGNED_OPCODE:
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/* These opcodes should not get here */
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printf ("Found a node with an unassigned AML opcode\n");
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fprintf (stderr, "Found a node with an unassigned AML opcode\n");
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return;
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case AML_INT_RESERVEDFIELD_OP:
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/* Special opcodes for within a field definition */
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Aml.Opcode = 0x00;
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break;
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case AML_INT_ACCESSFIELD_OP:
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Aml.Opcode = 0x01;
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break;
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default:
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Aml.Opcode = Op->Asl.AmlOpcode;
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break;
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}
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switch (Aml.Opcode)
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{
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case AML_PACKAGE_LENGTH:
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/* Value is the length to be encoded (Used in field definitions) */
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PkgLen.Len = (UINT32) Op->Asl.Value.Integer;
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break;
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default:
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/* Check for two-byte opcode */
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if (Aml.Opcode > 0x00FF)
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{
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/* Write the high byte first */
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CgLocalWriteAmlData (Op, &Aml.OpcodeBytes[1], 1);
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}
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CgLocalWriteAmlData (Op, &Aml.OpcodeBytes[0], 1);
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/* Subtreelength doesn't include length of package length bytes */
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PkgLen.Len = Op->Asl.AmlSubtreeLength + Op->Asl.AmlPkgLenBytes;
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break;
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}
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/* Does this opcode have an associated "PackageLength" field? */
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if (Op->Asl.CompileFlags & NODE_AML_PACKAGE)
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{
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if (Op->Asl.AmlPkgLenBytes == 1)
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{
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/* Simplest case -- no bytes to follow, just write the count */
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CgLocalWriteAmlData (Op, &PkgLen.LenBytes[0], 1);
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}
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else
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{
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/*
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* Encode the "bytes to follow" in the first byte, top two bits.
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* The low-order nybble of the length is in the bottom 4 bits
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*/
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PkgLenFirstByte = (UINT8) (((UINT32) (Op->Asl.AmlPkgLenBytes - 1) << 6) |
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(PkgLen.LenBytes[0] & 0x0F));
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CgLocalWriteAmlData (Op, &PkgLenFirstByte, 1);
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/* Shift the length over by the 4 bits we just stuffed in the first byte */
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PkgLen.Len >>= 4;
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/* Now we can write the remaining bytes - either 1, 2, or 3 bytes */
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for (i = 0; i < (UINT32) (Op->Asl.AmlPkgLenBytes - 1); i++)
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{
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CgLocalWriteAmlData (Op, &PkgLen.LenBytes[i], 1);
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}
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}
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}
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switch (Aml.Opcode)
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{
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case AML_BYTE_OP:
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CgLocalWriteAmlData (Op, (UINT8 *) &Op->Asl.Value.Integer, 1);
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break;
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case AML_WORD_OP:
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CgLocalWriteAmlData (Op, (UINT16 *) &Op->Asl.Value.Integer, 2);
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break;
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case AML_DWORD_OP:
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CgLocalWriteAmlData (Op, (UINT32 *) &Op->Asl.Value.Integer, 4);
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break;
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case AML_QWORD_OP:
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CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, 8);
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break;
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case AML_STRING_OP:
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CgLocalWriteAmlData (Op, Op->Asl.Value.String, Op->Asl.AmlLength);
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break;
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default:
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/* All data opcodes must appear above */
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break;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: CgWriteTableHeader
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*
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* PARAMETERS: Op - The DEFINITIONBLOCK node
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*
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* RETURN: None.
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*
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* DESCRIPTION: Write a table header corresponding to the DEFINITIONBLOCK
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*
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******************************************************************************/
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void
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CgWriteTableHeader (
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ACPI_PARSE_OBJECT *Op)
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{
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ACPI_PARSE_OBJECT *Child;
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/* AML filename */
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Child = Op->Asl.Child;
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/* Signature */
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Child = Child->Asl.Next;
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strncpy (TableHeader.Signature, Child->Asl.Value.String, 4);
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/* Revision */
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Child = Child->Asl.Next;
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TableHeader.Revision = (UINT8) Child->Asl.Value.Integer;
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/* Command-line Revision override */
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if (Gbl_RevisionOverride)
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{
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TableHeader.Revision = Gbl_RevisionOverride;
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}
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/* OEMID */
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Child = Child->Asl.Next;
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strncpy (TableHeader.OemId, Child->Asl.Value.String, 6);
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/* OEM TableID */
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Child = Child->Asl.Next;
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strncpy (TableHeader.OemTableId, Child->Asl.Value.String, 8);
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/* OEM Revision */
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Child = Child->Asl.Next;
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TableHeader.OemRevision = (UINT32) Child->Asl.Value.Integer;
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/* Compiler ID */
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strncpy (TableHeader.AslCompilerId, CompilerCreatorId, 4);
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/* Compiler version */
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TableHeader.AslCompilerRevision = CompilerCreatorRevision;
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/* Table length. Checksum zero for now, will rewrite later */
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TableHeader.Length = Gbl_TableLength;
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TableHeader.Checksum = 0;
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CgLocalWriteAmlData (Op, &TableHeader, sizeof (ACPI_TABLE_HEADER));
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}
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/*******************************************************************************
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*
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* FUNCTION: CgCloseTable
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*
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* PARAMETERS: None.
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*
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* RETURN: None.
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*
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* DESCRIPTION: Complete the ACPI table by calculating the checksum and
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* re-writing the header.
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*
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******************************************************************************/
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void
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CgCloseTable (void)
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{
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signed char Sum;
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UINT8 FileByte;
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FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
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Sum = 0;
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/* Calculate the checksum over the entire file */
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while (FlReadFile (ASL_FILE_AML_OUTPUT, &FileByte, 1) == AE_OK)
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{
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Sum = (signed char) (Sum + FileByte);
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}
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/* Re-write the table header with the checksum */
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TableHeader.Checksum = (UINT8) (0 - Sum);
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FlSeekFile (ASL_FILE_AML_OUTPUT, 0);
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CgLocalWriteAmlData (NULL, &TableHeader, sizeof (ACPI_TABLE_HEADER));
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}
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/*******************************************************************************
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*
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* FUNCTION: CgWriteNode
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*
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* PARAMETERS: Op - Parse node to write.
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*
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* RETURN: None.
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*
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* DESCRIPTION: Write the AML that corresponds to a parse node.
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*
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******************************************************************************/
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void
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CgWriteNode (
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ACPI_PARSE_OBJECT *Op)
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{
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ASL_RESOURCE_NODE *Rnode;
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Op->Asl.FinalAmlLength = 0;
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/* Always check for DEFAULT_ARG and other "Noop" nodes */
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/* TBD: this may not be the best place for this check */
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if ((Op->Asl.ParseOpcode == PARSEOP_DEFAULT_ARG) ||
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(Op->Asl.ParseOpcode == PARSEOP_EXTERNAL) ||
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(Op->Asl.ParseOpcode == PARSEOP_INCLUDE) ||
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(Op->Asl.ParseOpcode == PARSEOP_INCLUDE_END))
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{
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return;
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}
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|
|
|
switch (Op->Asl.AmlOpcode)
|
|
{
|
|
case AML_RAW_DATA_BYTE:
|
|
case AML_RAW_DATA_WORD:
|
|
case AML_RAW_DATA_DWORD:
|
|
case AML_RAW_DATA_QWORD:
|
|
|
|
CgLocalWriteAmlData (Op, &Op->Asl.Value.Integer, Op->Asl.AmlLength);
|
|
return;
|
|
|
|
|
|
case AML_RAW_DATA_BUFFER:
|
|
|
|
CgLocalWriteAmlData (Op, Op->Asl.Value.Buffer, Op->Asl.AmlLength);
|
|
return;
|
|
|
|
|
|
case AML_RAW_DATA_CHAIN:
|
|
|
|
Rnode = ACPI_CAST_PTR (ASL_RESOURCE_NODE, Op->Asl.Value.Buffer);
|
|
while (Rnode)
|
|
{
|
|
CgLocalWriteAmlData (Op, Rnode->Buffer, Rnode->BufferLength);
|
|
Rnode = Rnode->Next;
|
|
}
|
|
return;
|
|
|
|
default:
|
|
/* Internal data opcodes must all appear above */
|
|
break;
|
|
}
|
|
|
|
switch (Op->Asl.ParseOpcode)
|
|
{
|
|
case PARSEOP_DEFAULT_ARG:
|
|
|
|
break;
|
|
|
|
case PARSEOP_DEFINITIONBLOCK:
|
|
|
|
CgWriteTableHeader (Op);
|
|
break;
|
|
|
|
case PARSEOP_NAMESEG:
|
|
case PARSEOP_NAMESTRING:
|
|
case PARSEOP_METHODCALL:
|
|
|
|
CgLocalWriteAmlData (Op, Op->Asl.Value.String, Op->Asl.AmlLength);
|
|
break;
|
|
|
|
default:
|
|
|
|
CgWriteAmlOpcode (Op);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|