asllookup.c

acpi tools for linux include acpiexec and acpixtract

/******************************************************************************
 *
 * Module Name: asllookup- Namespace lookup
 *              $Revision: 1.106 $
 *
 *****************************************************************************/

/******************************************************************************
 *
 * 1. Copyright Notice
 *
 * Some or all of this work - Copyright (c) 1999 - 2008, Intel Corp.
 * All rights reserved.
 *
 * 2. License
 *
 * 2.1. This is your license from Intel Corp. under its intellectual property
 * rights.  You may have additional license terms from the party that provided
 * you this software, covering your right to use that party's intellectual
 * property rights.
 *
 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
 * copy of the source code appearing in this file ("Covered Code") an
 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
 * base code distributed originally by Intel ("Original Intel Code") to copy,
 * make derivatives, distribute, use and display any portion of the Covered
 * Code in any form, with the right to sublicense such rights; and
 *
 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
 * license (with the right to sublicense), under only those claims of Intel
 * patents that are infringed by the Original Intel Code, to make, use, sell,
 * offer to sell, and import the Covered Code and derivative works thereof
 * solely to the minimum extent necessary to exercise the above copyright
 * license, and in no event shall the patent license extend to any additions
 * to or modifications of the Original Intel Code.  No other license or right
 * is granted directly or by implication, estoppel or otherwise;
 *
 * The above copyright and patent license is granted only if the following
 * conditions are met:
 *
 * 3. Conditions
 *
 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification with rights to further distribute source must include
 * the above Copyright Notice, the above License, this list of Conditions,
 * and the following Disclaimer and Export Compliance provision.  In addition,
 * Licensee must cause all Covered Code to which Licensee contributes to
 * contain a file documenting the changes Licensee made to create that Covered
 * Code and the date of any change.  Licensee must include in that file the
 * documentation of any changes made by any predecessor Licensee.  Licensee
 * must include a prominent statement that the modification is derived,
 * directly or indirectly, from Original Intel Code.
 *
 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
 * 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
 * addition, Licensee may not authorize further sublicense of source of any
 * portion of the Covered Code, and must include terms to the effect that the
 * license from Licensee to its licensee is limited to the intellectual
 * property embodied in the software Licensee provides to its licensee, and
 * not to intellectual property embodied in modifications its licensee may
 * make.
 *
 * 3.3. Redistribution of Executable. Redistribution in executable form of any
 * substantial portion of the Covered Code or modification must reproduce the
 * above Copyright Notice, and the following Disclaimer and Export Compliance
 * provision in the documentation and/or other materials provided with the
 * distribution.
 *
 * 3.4. Intel retains all right, title, and interest in and to the Original
 * Intel Code.
 *
 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
 * Intel shall be used in advertising or otherwise to promote the sale, use or
 * other dealings in products derived from or relating to the Covered Code
 * without prior written authorization from Intel.
 *
 * 4. Disclaimer and Export Compliance
 *
 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
 * PARTICULAR PURPOSE.
 *
 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
 * LIMITED REMEDY.
 *
 * 4.3. Licensee shall not export, either directly or indirectly, any of this
 * software or system incorporating such software without first obtaining any
 * required license or other approval from the U. S. Department of Commerce or
 * any other agency or department of the United States Government.  In the
 * event Licensee exports any such software from the United States or
 * re-exports any such software from a foreign destination, Licensee shall
 * ensure that the distribution and export/re-export of the software is in
 * compliance with all laws, regulations, orders, or other restrictions of the
 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 * any of its subsidiaries will export/re-export any technical data, process,
 * software, or service, directly or indirectly, to any country for which the
 * United States government or any agency thereof requires an export license,
 * other governmental approval, or letter of assurance, without first obtaining
 * such license, approval or letter.
 *
 *****************************************************************************/


#include "aslcompiler.h"
#include "aslcompiler.y.h"

#include "acparser.h"
#include "amlcode.h"
#include "acnamesp.h"
#include "acdispat.h"


#define _COMPONENT          ACPI_COMPILER
        ACPI_MODULE_NAME    ("asllookup")

/* Local prototypes */

static ACPI_STATUS
LsCompareOneNamespaceObject (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue);

static ACPI_STATUS
LsDoOneNamespaceObject (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue);

static BOOLEAN
LkObjectExists (
    char                    *Name);

static void
LkCheckFieldRange (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  RegionBitLength,
    UINT32                  FieldBitOffset,
    UINT32                  FieldBitLength,
    UINT32                  AccessBitWidth);

static ACPI_STATUS
LkNamespaceLocateBegin (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  Level,
    void                    *Context);

static ACPI_STATUS
LkNamespaceLocateEnd (
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  Level,
    void                    *Context);

static ACPI_STATUS
LkIsObjectUsed (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue);

static ACPI_STATUS
LsDoOnePathname (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue);


/*******************************************************************************
 *
 * FUNCTION:    LsDoOneNamespaceObject
 *
 * PARAMETERS:  ACPI_WALK_CALLBACK
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Dump a namespace object to the namespace output file.
 *              Called during the walk of the namespace to dump all objects.
 *
 ******************************************************************************/

static ACPI_STATUS
LsDoOneNamespaceObject (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_PARSE_OBJECT       *Op;


    Gbl_NumNamespaceObjects++;

    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "%5d  [%d]  %*s %4.4s - %s",
        Gbl_NumNamespaceObjects, Level, (Level * 3), " ",
        &Node->Name,
        AcpiUtGetTypeName (Node->Type));

    Op = Node->Op;
    ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Node->Object);

    if (!Op)
    {
        FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\n");
        return (AE_OK);
    }


    if ((ObjDesc) &&
        (ACPI_GET_DESCRIPTOR_TYPE (ObjDesc) == ACPI_DESC_TYPE_OPERAND))
    {
        switch (Node->Type)
        {
        case ACPI_TYPE_INTEGER:

            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "       [Initial Value   0x%8.8X%8.8X]",
                ACPI_FORMAT_UINT64 (ObjDesc->Integer.Value));
            break;


        case ACPI_TYPE_STRING:

            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "        [Initial Value   \"%s\"]",
                ObjDesc->String.Pointer);
            break;

        default:
            /* Nothing to do for other types */
            break;
        }

    }
    else
    {
        switch (Node->Type)
        {
        case ACPI_TYPE_INTEGER:

            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
            {
                Op = Op->Asl.Child;
            }
            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
            {
                Op = Op->Asl.Next;
            }
            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "       [Initial Value   0x%8.8X%8.8X]",
                ACPI_FORMAT_UINT64 (Op->Asl.Value.Integer));
            break;


        case ACPI_TYPE_STRING:

            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
            {
                Op = Op->Asl.Child;
            }
            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
            {
                Op = Op->Asl.Next;
            }
            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "        [Initial Value   \"%s\"]",
                Op->Asl.Value.String);
            break;


        case ACPI_TYPE_LOCAL_REGION_FIELD:

            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
            {
                Op = Op->Asl.Child;
            }
            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "   [Offset 0x%04X   Length 0x%04X bits]",
                Op->Asl.Parent->Asl.ExtraValue, (UINT32) Op->Asl.Value.Integer);
            break;


        case ACPI_TYPE_BUFFER_FIELD:

            switch (Op->Asl.ParseOpcode)
            {
            case PARSEOP_CREATEBYTEFIELD:
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [BYTE  ( 8 bit)]");
                break;

            case PARSEOP_CREATEDWORDFIELD:
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [DWORD (32 bit)]");
                break;

            case PARSEOP_CREATEQWORDFIELD:
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [QWORD (64 bit)]");
                break;

            case PARSEOP_CREATEWORDFIELD:
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [WORD  (16 bit)]");
                break;

            case PARSEOP_CREATEBITFIELD:
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [BIT   ( 1 bit)]");
                break;

            case PARSEOP_CREATEFIELD:
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "   [Arbitrary Bit Field]");
                break;

            default:
                break;

            }
            break;


        case ACPI_TYPE_PACKAGE:

            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
            {
                Op = Op->Asl.Child;
            }
            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
            {
                Op = Op->Asl.Next;
            }
            Op = Op->Asl.Child;

            if ((Op->Asl.ParseOpcode == PARSEOP_BYTECONST) ||
                (Op->Asl.ParseOpcode == PARSEOP_RAW_DATA))
            {
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                    "       [Initial Length  0x%.2X elements]",
                    Op->Asl.Value.Integer);
            }
            break;


        case ACPI_TYPE_BUFFER:

            if (Op->Asl.ParseOpcode == PARSEOP_NAME)
            {
                Op = Op->Asl.Child;
            }
            if ((Op->Asl.ParseOpcode == PARSEOP_NAMESEG)  ||
                (Op->Asl.ParseOpcode == PARSEOP_NAMESTRING))
            {
                Op = Op->Asl.Next;
            }
            Op = Op->Asl.Child;

            if (Op && (Op->Asl.ParseOpcode == PARSEOP_INTEGER))
            {
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                    "        [Initial Length  0x%.2X bytes]",
                    Op->Asl.Value.Integer);
            }
            break;


        case ACPI_TYPE_METHOD:

            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "        [Code Length     0x%.4X bytes]",
                Op->Asl.AmlSubtreeLength);
            break;


        case ACPI_TYPE_LOCAL_RESOURCE:

            FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                "  [Desc Offset     0x%.4X Bytes]", Node->Value);
            break;


        case ACPI_TYPE_LOCAL_RESOURCE_FIELD:

            if (Node->Flags & 0x80)
            {
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                    "   [Field Offset    0x%.4X Bits 0x%.4X Bytes]",
                    Node->Value, Node->Value / 8);
            }
            else
            {
                FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT,
                    "   [Field Offset    0x%.4X Bytes]", Node->Value);
            }
            break;


        default:
            /* Nothing to do for other types */
            break;
        }
    }

    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\n");
    return (AE_OK);
}


/*******************************************************************************
 *
 * FUNCTION:    LsSetupNsList
 *
 * PARAMETERS:  Handle          - local file handle
 *
 * RETURN:      None
 *
 * DESCRIPTION: Set the namespace output file to the input handle
 *
 ******************************************************************************/

void
LsSetupNsList (void * Handle)
{

    Gbl_NsOutputFlag = TRUE;
    Gbl_Files[ASL_FILE_NAMESPACE_OUTPUT].Handle = Handle;
}


/*******************************************************************************
 *
 * FUNCTION:    LsDoOnePathname
 *
 * PARAMETERS:  ACPI_WALK_CALLBACK
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Print the full pathname for a namespace node.
 *
 ******************************************************************************/

static ACPI_STATUS
LsDoOnePathname (
    ACPI_HANDLE             ObjHandle,
    UINT32                  Level,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
    ACPI_STATUS             Status;
    ACPI_BUFFER             TargetPath;


    TargetPath.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
    Status = AcpiNsHandleToPathname (Node, &TargetPath);
    if (ACPI_FAILURE (Status))
    {
        return (Status);
    }

    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "%s\n", TargetPath.Pointer);
    ACPI_FREE (TargetPath.Pointer);