utresrc.c

acpi tools for linux include acpiexec and acpixtract

/*******************************************************************************
 *
 * Module Name: utresrc - Resource managment utilities
 *              $Revision: 1.15 $
 *
 ******************************************************************************/

/******************************************************************************
 *
 * 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.
 *
 *****************************************************************************/


#define __UTRESRC_C__

#include "acpi.h"
#include "amlresrc.h"


#define _COMPONENT          ACPI_UTILITIES
        ACPI_MODULE_NAME    ("utresrc")


#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)

/*
 * Strings used to decode resource descriptors.
 * Used by both the disasssembler and the debugger resource dump routines
 */
const char                      *AcpiGbl_BmDecode[] =
{
    "NotBusMaster",
    "BusMaster"
};

const char                      *AcpiGbl_ConfigDecode[] =
{
    "0 - Good Configuration",
    "1 - Acceptable Configuration",
    "2 - Suboptimal Configuration",
    "3 - ***Invalid Configuration***",
};

const char                      *AcpiGbl_ConsumeDecode[] =
{
    "ResourceProducer",
    "ResourceConsumer"
};

const char                      *AcpiGbl_DecDecode[] =
{
    "PosDecode",
    "SubDecode"
};

const char                      *AcpiGbl_HeDecode[] =
{
    "Level",
    "Edge"
};

const char                      *AcpiGbl_IoDecode[] =
{
    "Decode10",
    "Decode16"
};

const char                      *AcpiGbl_LlDecode[] =
{
    "ActiveHigh",
    "ActiveLow"
};

const char                      *AcpiGbl_MaxDecode[] =
{
    "MaxNotFixed",
    "MaxFixed"
};

const char                      *AcpiGbl_MemDecode[] =
{
    "NonCacheable",
    "Cacheable",
    "WriteCombining",
    "Prefetchable"
};

const char                      *AcpiGbl_MinDecode[] =
{
    "MinNotFixed",
    "MinFixed"
};

const char                      *AcpiGbl_MtpDecode[] =
{
    "AddressRangeMemory",
    "AddressRangeReserved",
    "AddressRangeACPI",
    "AddressRangeNVS"
};

const char                      *AcpiGbl_RngDecode[] =
{
    "InvalidRanges",
    "NonISAOnlyRanges",
    "ISAOnlyRanges",
    "EntireRange"
};

const char                      *AcpiGbl_RwDecode[] =
{
    "ReadOnly",
    "ReadWrite"
};

const char                      *AcpiGbl_ShrDecode[] =
{
    "Exclusive",
    "Shared"
};

const char                      *AcpiGbl_SizDecode[] =
{
    "Transfer8",
    "Transfer8_16",
    "Transfer16",
    "InvalidSize"
};

const char                      *AcpiGbl_TrsDecode[] =
{
    "DenseTranslation",
    "SparseTranslation"
};

const char                      *AcpiGbl_TtpDecode[] =
{
    "TypeStatic",
    "TypeTranslation"
};

const char                      *AcpiGbl_TypDecode[] =
{
    "Compatibility",
    "TypeA",
    "TypeB",
    "TypeF"
};

#endif


/*
 * Base sizes of the raw AML resource descriptors, indexed by resource type.
 * Zero indicates a reserved (and therefore invalid) resource type.
 */
const UINT8                 AcpiGbl_ResourceAmlSizes[] =
{
    /* Small descriptors */

    0,
    0,
    0,
    0,
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_IRQ),
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_DMA),
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_START_DEPENDENT),
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_END_DEPENDENT),
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_IO),
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_FIXED_IO),
    0,
    0,
    0,
    0,
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_VENDOR_SMALL),
    ACPI_AML_SIZE_SMALL (AML_RESOURCE_END_TAG),

    /* Large descriptors */

    0,
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_MEMORY24),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_GENERIC_REGISTER),
    0,
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_VENDOR_LARGE),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_MEMORY32),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_FIXED_MEMORY32),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_ADDRESS32),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_ADDRESS16),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_EXTENDED_IRQ),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_ADDRESS64),
    ACPI_AML_SIZE_LARGE (AML_RESOURCE_EXTENDED_ADDRESS64)
};


/*
 * Resource types, used to validate the resource length field.
 * The length of fixed-length types must match exactly, variable
 * lengths must meet the minimum required length, etc.
 * Zero indicates a reserved (and therefore invalid) resource type.
 */
static const UINT8          AcpiGbl_ResourceTypes[] =
{
    /* Small descriptors */

    0,
    0,
    0,
    0,
    ACPI_SMALL_VARIABLE_LENGTH,
    ACPI_FIXED_LENGTH,
    ACPI_SMALL_VARIABLE_LENGTH,
    ACPI_FIXED_LENGTH,
    ACPI_FIXED_LENGTH,
    ACPI_FIXED_LENGTH,
    0,
    0,
    0,
    0,
    ACPI_VARIABLE_LENGTH,
    ACPI_FIXED_LENGTH,

    /* Large descriptors */

    0,
    ACPI_FIXED_LENGTH,
    ACPI_FIXED_LENGTH,
    0,
    ACPI_VARIABLE_LENGTH,
    ACPI_FIXED_LENGTH,
    ACPI_FIXED_LENGTH,
    ACPI_VARIABLE_LENGTH,
    ACPI_VARIABLE_LENGTH,
    ACPI_VARIABLE_LENGTH,
    ACPI_VARIABLE_LENGTH,
    ACPI_FIXED_LENGTH
};


/*******************************************************************************
 *
 * FUNCTION:    AcpiUtWalkAmlResources
 *
 * PARAMETERS:  Aml             - Pointer to the raw AML resource template
 *              AmlLength       - Length of the entire template
 *              UserFunction    - Called once for each descriptor found. If
 *                                NULL, a pointer to the EndTag is returned
 *              Context         - Passed to UserFunction
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Walk a raw AML resource list(buffer). User function called
 *              once for each resource found.
 *
 ******************************************************************************/

ACPI_STATUS
AcpiUtWalkAmlResources (
    UINT8                   *Aml,
    ACPI_SIZE               AmlLength,
    ACPI_WALK_AML_CALLBACK  UserFunction,
    void                    *Context)
{
    ACPI_STATUS             Status;
    UINT8                   *EndAml;
    UINT8                   ResourceIndex;
    UINT32                  Length;
    UINT32                  Offset = 0;


    ACPI_FUNCTION_TRACE (UtWalkAmlResources);


    /* The absolute minimum resource template is one EndTag descriptor */

    if (AmlLength < sizeof (AML_RESOURCE_END_TAG))
    {
        return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
    }

    /* Point to the end of the resource template buffer */

    EndAml = Aml + AmlLength;