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/*******************************************************************************

 *

 * Module Name: rslist - Linked list utilities

 *

 ******************************************************************************/

/******************************************************************************

 *

 * 1. Copyright Notice

 *

 * Some or all of this work - Copyright (c) 1999 - 2011, 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 __RSLIST_C__

#include "acpi.h"

#include "accommon.h"

#include "acresrc.h"

#define _COMPONENT          ACPI_RESOURCES

        ACPI_MODULE_NAME    ("rslist")

/*******************************************************************************

 *

 * FUNCTION:    AcpiRsConvertAmlToResources

 *

 * PARAMETERS:  ACPI_WALK_AML_CALLBACK

 *              ResourcePtr             - Pointer to the buffer that will

 *                                        contain the output structures

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Convert an AML resource to an internal representation of the

 *              resource that is aligned and easier to access.

 *

 ******************************************************************************/

ACPI_STATUS

AcpiRsConvertAmlToResources (

    UINT8                   *Aml,

    UINT32                  Length,

    UINT32                  Offset,

    UINT8                   ResourceIndex,

    void                    *Context)

{

    ACPI_RESOURCE           **ResourcePtr = ACPI_CAST_INDIRECT_PTR (

                                ACPI_RESOURCE, Context);

    ACPI_RESOURCE           *Resource;

    ACPI_STATUS             Status;

    ACPI_FUNCTION_TRACE (RsConvertAmlToResources);

    /*

     * Check that the input buffer and all subsequent pointers into it

     * are aligned on a native word boundary. Most important on IA64

     */

    Resource = *ResourcePtr;

    if (ACPI_IS_MISALIGNED (Resource))

    {

        ACPI_WARNING ((AE_INFO,

            "Misaligned resource pointer %p", Resource));

    }

    /* Convert the AML byte stream resource to a local resource struct */

    Status = AcpiRsConvertAmlToResource (

                Resource, ACPI_CAST_PTR (AML_RESOURCE, Aml),

                AcpiGbl_GetResourceDispatch[ResourceIndex]);

    if (ACPI_FAILURE (Status))

    {

        ACPI_EXCEPTION ((AE_INFO, Status,

            "Could not convert AML resource (Type 0x%X)", *Aml));

        return_ACPI_STATUS (Status);

    }

    ACPI_DEBUG_PRINT ((ACPI_DB_RESOURCES,

        "Type %.2X, AmlLength %.2X InternalLength %.2X\n",

        AcpiUtGetResourceType (Aml), Length,

        Resource->Length));

    /* Point to the next structure in the output buffer */

    *ResourcePtr = ACPI_ADD_PTR (void, Resource, Resource->Length);

    return_ACPI_STATUS (AE_OK);

}

/*******************************************************************************

 *

 * FUNCTION:    AcpiRsConvertResourcesToAml

 *

 * PARAMETERS:  Resource            - Pointer to the resource linked list

 *              AmlSizeNeeded       - Calculated size of the byte stream

 *                                    needed from calling AcpiRsGetAmlLength()

 *                                    The size of the OutputBuffer is

 *                                    guaranteed to be >= AmlSizeNeeded

 *              OutputBuffer        - Pointer to the buffer that will

 *                                    contain the byte stream

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Takes the resource linked list and parses it, creating a

 *              byte stream of resources in the caller's output buffer

 *

 ******************************************************************************/

ACPI_STATUS

AcpiRsConvertResourcesToAml (

    ACPI_RESOURCE           *Resource,

    ACPI_SIZE               AmlSizeNeeded,

    UINT8                   *OutputBuffer)

{

    UINT8                   *Aml = OutputBuffer;

    UINT8                   *EndAml = OutputBuffer + AmlSizeNeeded;

    ACPI_STATUS             Status;

    ACPI_FUNCTION_TRACE (RsConvertResourcesToAml);

    /* Walk the resource descriptor list, convert each descriptor */

    while (Aml < EndAml)

    {

        /* Validate the (internal) Resource Type */

        if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)

        {

            ACPI_ERROR ((AE_INFO,

                "Invalid descriptor type (0x%X) in resource list",

                Resource->Type));

            return_ACPI_STATUS (AE_BAD_DATA);

        }

        /* Perform the conversion */

        Status = AcpiRsConvertResourceToAml (Resource,

                    ACPI_CAST_PTR (AML_RESOURCE, Aml),

                    AcpiGbl_SetResourceDispatch[Resource->Type]);

        if (ACPI_FAILURE (Status))

        {

            ACPI_EXCEPTION ((AE_INFO, Status,

                "Could not convert resource (type 0x%X) to AML",

                Resource->Type));

            return_ACPI_STATUS (Status);

        }

        /* Perform final sanity check on the new AML resource descriptor */

        Status = AcpiUtValidateResource (

                    ACPI_CAST_PTR (AML_RESOURCE, Aml), NULL);

        if (ACPI_FAILURE (Status))

        {

            return_ACPI_STATUS (Status);

        }

        /* Check for end-of-list, normal exit */

        if (Resource->Type == ACPI_RESOURCE_TYPE_END_TAG)

        {

            /* An End Tag indicates the end of the input Resource Template */

            return_ACPI_STATUS (AE_OK);

        }

        /*

         * Extract the total length of the new descriptor and set the

         * Aml to point to the next (output) resource descriptor

         */

        Aml += AcpiUtGetDescriptorLength (Aml);

        /* Point to the next input resource descriptor */

        Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length);

    }

    /* Completed buffer, but did not find an EndTag resource descriptor */

    return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);

}