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 *

 * Module Name: aslresource - Resource template/descriptor 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.

 *

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

#include "aslcompiler.y.h"

#include "amlcode.h"

        ACPI_MODULE_NAME    ("aslresource")

 *

 * FUNCTION:    RsSmallAddressCheck

 *

 * PARAMETERS:  Minimum             - Address Min value

 *              Maximum             - Address Max value

 *              Length              - Address range value

 *              Alignment           - Address alignment value

 *              MinOp               - Original Op for Address Min

 *              MaxOp               - Original Op for Address Max

 *              LengthOp            - Original Op for address range

 *              AlignOp             - Original Op for address alignment. If

 *                                    NULL, means "zero value for alignment is

 *                                    OK, and means 64K alignment" (for

 *                                    Memory24 descriptor)

 *              Op                  - Parent Op for entire construct

 *

 * RETURN:      None. Adds error messages to error log if necessary

 *

 * DESCRIPTION: Perform common value checks for "small" address descriptors.

 *              Currently:

 *                  Io, Memory24, Memory32

 *

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

RsSmallAddressCheck (

    UINT8                   Type,

    UINT32                  Minimum,

    UINT32                  Maximum,

    UINT32                  Length,

    UINT32                  Alignment,

    ACPI_PARSE_OBJECT       *MinOp,

    ACPI_PARSE_OBJECT       *MaxOp,

    ACPI_PARSE_OBJECT       *LengthOp,

    ACPI_PARSE_OBJECT       *AlignOp,

    ACPI_PARSE_OBJECT       *Op)

{

    {

        return;

    }

     * Check for a so-called "null descriptor". These are descriptors that are

     * created with most fields set to zero. The intent is that the descriptor

     * will be updated/completed at runtime via a BufferField.

     *

     * If the descriptor does NOT have a resource tag, it cannot be referenced

     * by a BufferField and we will flag this as an error. Conversely, if

     * the descriptor has a resource tag, we will assume that a BufferField

     * will be used to dynamically update it, so no error.

     *

     * A possible enhancement to this check would be to verify that in fact

     * a BufferField is created using the resource tag, and perhaps even

     * verify that a Store is performed to the BufferField.

     *

     * Note: for these descriptors, Alignment is allowed to be zero

     */

    if (!Minimum && !Maximum && !Length)

    {

        if (!Op->Asl.ExternalName)

        {

            /* No resource tag. Descriptor is fixed and is also illegal */

        }

    }

    {

        if (!Alignment) /* Alignment==0 means 64K - no invalid alignment */

        {

            Alignment = ACPI_UINT16_MAX + 1;

        }

        Maximum <<= 8;

        Length *= 256;

    }

    {

        /* Basic checks on Min/Max/Length */

        {

            AslError (ASL_ERROR, ASL_MSG_INVALID_MIN_MAX, MinOp, NULL);

        }

        else if (Length > (Maximum - Minimum + 1))

        {

            AslError (ASL_ERROR, ASL_MSG_INVALID_LENGTH, LengthOp, NULL);

        }

    }

    {

        Alignment = 1;

    }

    {

        AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MinOp, NULL);

    }

    if (Maximum % Alignment)

    {

        AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MaxOp, NULL);

    }

}

 *

 * FUNCTION:    RsLargeAddressCheck

 *

 * PARAMETERS:  Minimum             - Address Min value

 *              Maximum             - Address Max value

 *              Length              - Address range value

 *              Granularity         - Address granularity value

 *              Flags               - General flags for address descriptors:

 *                                    _MIF, _MAF, _DEC

 *              MinOp               - Original Op for Address Min

 *              MaxOp               - Original Op for Address Max

 *              LengthOp            - Original Op for address range

 *              GranOp              - Original Op for address granularity

 *              Op                  - Parent Op for entire construct

 *

 * RETURN:      None. Adds error messages to error log if necessary

 *

 * DESCRIPTION: Perform common value checks for "large" address descriptors.

 *              Currently:

 *                  WordIo,     WordBusNumber,  WordSpace

 *                  DWordIo,    DWordMemory,    DWordSpace

 *                  QWordIo,    QWordMemory,    QWordSpace

 *                  ExtendedIo, ExtendedMemory, ExtendedSpace

 *

 * _MIF flag set means that the minimum address is fixed and is not relocatable

 * _MAF flag set means that the maximum address is fixed and is not relocatable

 * Length of zero means that the record size is variable

 *

 * This function implements the LEN/MIF/MAF/MIN/MAX/GRA rules within Table 6-40

 * of the ACPI 4.0a specification. Added 04/2010.

 *

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

RsLargeAddressCheck (

    UINT64                  Minimum,

    UINT64                  Maximum,

    UINT64                  Length,

    UINT64                  Granularity,

    UINT8                   Flags,

    ACPI_PARSE_OBJECT       *MinOp,

    ACPI_PARSE_OBJECT       *MaxOp,

    ACPI_PARSE_OBJECT       *LengthOp,

    ACPI_PARSE_OBJECT       *GranOp,

    ACPI_PARSE_OBJECT       *Op)

{

    {

        return;

    }

     * Check for a so-called "null descriptor". These are descriptors that are

     * created with most fields set to zero. The intent is that the descriptor

     * will be updated/completed at runtime via a BufferField.

     *

     * If the descriptor does NOT have a resource tag, it cannot be referenced

     * by a BufferField and we will flag this as an error. Conversely, if

     * the descriptor has a resource tag, we will assume that a BufferField

     * will be used to dynamically update it, so no error.

     *

     * A possible enhancement to this check would be to verify that in fact

     * a BufferField is created using the resource tag, and perhaps even

     * verify that a Store is performed to the BufferField.

     */

    if (!Minimum && !Maximum && !Length && !Granularity)

    {

        if (!Op->Asl.ExternalName)

        {

            /* No resource tag. Descriptor is fixed and is also illegal */

        }

    }

    {

        AslError (ASL_ERROR, ASL_MSG_INVALID_MIN_MAX, MinOp, NULL);

        return;

    }

    else if (Length > (Maximum - Minimum + 1))

    {

        AslError (ASL_ERROR, ASL_MSG_INVALID_LENGTH, LengthOp, NULL);

        return;

    }

    {

        if ((Granularity + 1) &

             Granularity)

        {

            AslError (ASL_ERROR, ASL_MSG_INVALID_GRANULARITY, GranOp, NULL);

            return;

        }

    }

     * Check the various combinations of Length, MinFixed, and MaxFixed

     */

    if (Length)

    {

        /* Fixed non-zero length */

        {

        case 0:

            /*

             * Fixed length, variable locations (both _MIN and _MAX).

             * Length must be a multiple of granularity

             */

            if (Granularity & Length)

            {

                AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, LengthOp, NULL);

            }

            break;

            {

                AslError (ASL_ERROR, ASL_MSG_INVALID_GRAN_FIXED, GranOp, NULL);

            }

            {

                AslError (ASL_ERROR, ASL_MSG_INVALID_LENGTH_FIXED, LengthOp, NULL);

            }

            break;

        case ACPI_RESOURCE_FLAG_MAF:

        default:

            AslError (ASL_ERROR, ASL_MSG_INVALID_ADDR_FLAGS, LengthOp, NULL);

        }

    }

    else

    {

        /* Variable length (length==0) */

        {

        case 0:

            /*

             * Both _MIN and _MAX are variable.

             * No additional requirements, just exit

             */

            break;

             * The granularity is defined by the ACPI specification to be a

             * power-of-two minus one, therefore the granularity is a

             * bitmask which can be used to easily validate the addresses.

             */

            if (Granularity & Minimum)

            {

                AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MinOp, NULL);

            }

            break;

            {

                AslError (ASL_ERROR, ASL_MSG_ALIGNMENT, MaxOp, "-1");

            }

            break;

        default:

            AslError (ASL_ERROR, ASL_MSG_INVALID_ADDR_FLAGS, LengthOp, NULL);

        }

    }

}

 *

 * FUNCTION:    RsGetStringDataLength

 *

 * PARAMETERS:  InitializerOp     - Start of a subtree of init nodes

 *

 * RETURN:      Valid string length if a string node is found (otherwise 0)

 *

 * DESCRIPTION: In a list of peer nodes, find the first one that contains a

 *              string and return the length of the string.

 *

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

RsGetStringDataLength (

    ACPI_PARSE_OBJECT       *InitializerOp)

{

    {

        if (InitializerOp->Asl.ParseOpcode == PARSEOP_STRING_LITERAL)

        {

            return ((UINT16) (strlen (InitializerOp->Asl.Value.String) + 1));

        }

        InitializerOp = ASL_GET_PEER_NODE (InitializerOp);

    }

}

 *

 * FUNCTION:    RsAllocateResourceNode

 *

 * PARAMETERS:  Size        - Size of node in bytes

 *

 * RETURN:      The allocated node - aborts on allocation failure

 *

 * DESCRIPTION: Allocate a resource description node and the resource

 *              descriptor itself (the nodes are used to link descriptors).

 *

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

RsAllocateResourceNode (

    UINT32                  Size)

{

    ASL_RESOURCE_NODE       *Rnode;

    Rnode->BufferLength = Size;

}

 *

 * FUNCTION:    RsCreateBitField

 *

 * PARAMETERS:  Op              - Resource field node

 *              Name            - Name of the field (Used only to reference

 *                                the field in the ASL, not in the AML)

 *              ByteOffset      - Offset from the field start

 *              BitOffset       - Additional bit offset

 *

 * RETURN:      None, sets fields within the input node

 *

 * DESCRIPTION: Utility function to generate a named bit field within a

 *              resource descriptor.  Mark a node as 1) a field in a resource

 *              descriptor, and 2) set the value to be a BIT offset

 *

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

RsCreateBitField (

    ACPI_PARSE_OBJECT       *Op,

    char                    *Name,

    UINT32                  ByteOffset,

    UINT32                  BitOffset)

{

    Op->Asl.Value.Integer     = ((UINT64) ByteOffset * 8) + BitOffset;

    Op->Asl.CompileFlags     |= (NODE_IS_RESOURCE_FIELD | NODE_IS_BIT_OFFSET);

}

 *

 * FUNCTION:    RsCreateByteField

 *

 * PARAMETERS:  Op              - Resource field node

 *              Name            - Name of the field (Used only to reference

 *                                the field in the ASL, not in the AML)

 *              ByteOffset      - Offset from the field start

 *

 * RETURN:      None, sets fields within the input node

 *

 * DESCRIPTION: Utility function to generate a named byte field within a

 *              resource descriptor.  Mark a node as 1) a field in a resource

 *              descriptor, and 2) set the value to be a BYTE offset

 *

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

RsCreateByteField (

    ACPI_PARSE_OBJECT       *Op,

    char                    *Name,

    UINT32                  ByteOffset)

{

    Op->Asl.Value.Integer     = ByteOffset;

    Op->Asl.CompileFlags     |= NODE_IS_RESOURCE_FIELD;

}

 *

 * FUNCTION:    RsSetFlagBits

 *

 * PARAMETERS:  *Flags          - Pointer to the flag byte

 *              Op              - Flag initialization node

 *              Position        - Bit position within the flag byte

 *              Default         - Used if the node is DEFAULT.

 *

 * RETURN:      Sets bits within the *Flags output byte.

 *

 * DESCRIPTION: Set a bit in a cumulative flags word from an initialization

 *              node.  Will use a default value if the node is DEFAULT, meaning

 *              that no value was specified in the ASL.  Used to merge multiple

 *              keywords into a single flags byte.

 *

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

RsSetFlagBits (

    UINT8                   *Flags,

    ACPI_PARSE_OBJECT       *Op,

    UINT8                   Position,

    UINT8                   DefaultBit)

{

    {

        /* Use the default bit */

    }

    else

    {

        /* Use the bit specified in the initialization node */

    }

}

 *

 * FUNCTION:    RsCompleteNodeAndGetNext

 *

 * PARAMETERS:  Op            - Resource node to be completed

 *

 * RETURN:      The next peer to the input node.

 *

 * DESCRIPTION: Mark the current node completed and return the next peer.

 *              The node ParseOpcode is set to DEFAULT_ARG, meaning that

 *              this node is to be ignored from now on.

 *

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

RsCompleteNodeAndGetNext (

    ACPI_PARSE_OBJECT       *Op)

{

}

 *

 * FUNCTION:    RsCheckListForDuplicates

 *

 * PARAMETERS:  Op                  - First op in the initializer list

 *

 * RETURN:      None

 *

 * DESCRIPTION: Check an initializer list for duplicate values. Emits an error

 *              if any duplicates are found.

 *

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

RsCheckListForDuplicates (

    ACPI_PARSE_OBJECT       *Op)

{

    ACPI_PARSE_OBJECT       *NextValueOp = Op;

    ACPI_PARSE_OBJECT       *NextOp;

    UINT32                  Value;

    {

        return;

    }

    {

        Value = (UINT32) NextValueOp->Asl.Value.Integer;

        while (NextOp)

        {

            if (NextOp->Asl.ParseOpcode != PARSEOP_DEFAULT_ARG)

            {

                /* Compare values */

                {

                    /* Emit error only once per duplicate node */

                    {

                        NextOp->Asl.CompileFlags |= NODE_IS_DUPLICATE;

                        AslError (ASL_ERROR, ASL_MSG_DUPLICATE_ITEM,

                            NextOp, NULL);

                    }

                }

            }

        }

    }

}

 *

 * FUNCTION:    RsDoOneResourceDescriptor

 *

 * PARAMETERS:  DescriptorTypeOp    - Parent parse node of the descriptor

 *              CurrentByteOffset   - Offset in the resource descriptor

 *                                    buffer.

 *

 * RETURN:      A valid resource node for the descriptor

 *

 * DESCRIPTION: Dispatches the processing of one resource descriptor

 *

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

RsDoOneResourceDescriptor (

    ACPI_PARSE_OBJECT       *DescriptorTypeOp,

    UINT32                  CurrentByteOffset,

    UINT8                   *State)

{

    ASL_RESOURCE_NODE       *Rnode = NULL;

    {

    case PARSEOP_DMA:

        Rnode = RsDoDmaDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoDwordIoDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoDwordMemoryDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoDwordSpaceDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        switch (*State)

        {

        case ACPI_RSTATE_NORMAL:

            AslError (ASL_ERROR, ASL_MSG_MISSING_STARTDEPENDENT,

                DescriptorTypeOp, NULL);

            break;

            AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,

                DescriptorTypeOp, NULL);

            break;

        default:

            break;

        }

        Rnode = RsDoEndDependentDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoEndTagDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoExtendedIoDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoExtendedMemoryDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoExtendedSpaceDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoFixedIoDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoInterruptDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoIoDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoIrqDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoIrqNoFlagsDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoMemory24Descriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoMemory32Descriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoMemory32FixedDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoQwordIoDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoQwordMemoryDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoQwordSpaceDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoGeneralRegisterDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        switch (*State)

        {

        case ACPI_RSTATE_START_DEPENDENT:

            AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,

                DescriptorTypeOp, NULL);

            break;

        case ACPI_RSTATE_DEPENDENT_LIST:

        default:

            break;

        }

        Rnode = RsDoStartDependentDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        *State = ACPI_RSTATE_DEPENDENT_LIST;

        break;

        switch (*State)

        {

        case ACPI_RSTATE_START_DEPENDENT:

            AslError (ASL_ERROR, ASL_MSG_DEPENDENT_NESTING,

                DescriptorTypeOp, NULL);

            break;

        case ACPI_RSTATE_DEPENDENT_LIST:

        default:

            break;

        }

        Rnode = RsDoStartDependentNoPriDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        *State = ACPI_RSTATE_DEPENDENT_LIST;

        break;

        Rnode = RsDoVendorLargeDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoVendorSmallDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoWordBusNumberDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoWordIoDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        Rnode = RsDoWordSpaceDescriptor (DescriptorTypeOp,

                    CurrentByteOffset);

        break;

        /* Just ignore any of these, they are used as fillers/placeholders */

        break;

        printf ("Unknown resource descriptor type [%s]\n",

                    DescriptorTypeOp->Asl.ParseOpName);

        break;

    }

     * Mark original node as unused, but head of a resource descriptor.

     * This allows the resource to be installed in the namespace so that

     * references to the descriptor can be resolved.

     */

    DescriptorTypeOp->Asl.ParseOpcode = PARSEOP_DEFAULT_ARG;

    DescriptorTypeOp->Asl.CompileFlags = NODE_IS_RESOURCE_DESC;

    DescriptorTypeOp->Asl.Value.Integer = CurrentByteOffset;

    {

        DescriptorTypeOp->Asl.FinalAmlLength = Rnode->BufferLength;

    }

}

 *

 * FUNCTION:    RsLinkDescriptorChain

 *

 * PARAMETERS:  PreviousRnode       - Pointer to the node that will be previous

 *                                    to the linked node,  At exit, set to the

 *                                    last node in the new chain.

 *              Rnode               - Resource node to link into the list

 *

 * RETURN:      Cumulative buffer byte offset of the new segment of chain

 *

 * DESCRIPTION: Link a descriptor chain at the end of an existing chain.

 *

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

RsLinkDescriptorChain (

    ASL_RESOURCE_NODE       **PreviousRnode,

    ASL_RESOURCE_NODE       *Rnode)

{

    ASL_RESOURCE_NODE       *LastRnode;

    UINT32                  CurrentByteOffset;

    {

        return 0;

    }

    CurrentByteOffset = Rnode->BufferLength;

    while (LastRnode->Next)

    {

        LastRnode = LastRnode->Next;

        CurrentByteOffset += LastRnode->BufferLength;

    }

    return CurrentByteOffset;

}

 *

 * FUNCTION:    RsDoResourceTemplate

 *

 * PARAMETERS:  Op        - Parent of a resource template list

 *

 * RETURN:      None.  Sets input node to point to a list of AML code

 *

 * DESCRIPTION: Merge a list of resource descriptors into a single AML buffer,

 *              in preparation for output to the AML output file.

 *

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

RsDoResourceTemplate (

    ACPI_PARSE_OBJECT       *Op)

{

    ACPI_PARSE_OBJECT       *BufferLengthOp;

    ACPI_PARSE_OBJECT       *BufferOp;

    ACPI_PARSE_OBJECT       *DescriptorTypeOp;

    ACPI_PARSE_OBJECT       *LastOp = NULL;

    UINT32                  CurrentByteOffset = 0;

    ASL_RESOURCE_NODE       HeadRnode;

    ASL_RESOURCE_NODE       *PreviousRnode;

    ASL_RESOURCE_NODE       *Rnode;

    UINT8                   State;

    {

        Op->Asl.Parent->Asl.CompileFlags |= NODE_IS_RESOURCE_DESC;

    }

    /* Buffer Length node is first child */

     * Process all resource descriptors in the list

     * Note: It is assumed that the EndTag node has been automatically

     * inserted at the end of the template by the parser.

     */

    State = ACPI_RSTATE_NORMAL;

    PreviousRnode = &HeadRnode;

    while (DescriptorTypeOp)

    {

        DescriptorTypeOp->Asl.CompileFlags |= NODE_IS_RESOURCE_DESC;

        Rnode = RsDoOneResourceDescriptor (DescriptorTypeOp, CurrentByteOffset,

                    &State);

         * Update current byte offset to indicate the number of bytes from the

         * start of the buffer.  Buffer can include multiple descriptors, we

         * must keep track of the offset of not only each descriptor, but each

         * element (field) within each descriptor as well.

         */

        CurrentByteOffset += RsLinkDescriptorChain (&PreviousRnode, Rnode);

        DescriptorTypeOp = ASL_GET_PEER_NODE (DescriptorTypeOp);

    }

    {

        if (LastOp)

        {

            LastOp = LastOp->Asl.Parent;

        }

        AslError (ASL_ERROR, ASL_MSG_MISSING_ENDDEPENDENT, LastOp, NULL);

    }

     * Transform the nodes into the following

     *

     * Op           -> AML_BUFFER_OP

     * First Child  -> BufferLength

     * Second Child -> Descriptor Buffer (raw byte data)

     */

    Op->Asl.ParseOpcode               = PARSEOP_BUFFER;

    Op->Asl.AmlOpcode                 = AML_BUFFER_OP;

    Op->Asl.CompileFlags              = NODE_AML_PACKAGE | NODE_IS_RESOURCE_DESC;

    BufferLengthOp->Asl.Value.Integer = CurrentByteOffset;

    (void) OpcSetOptimalIntegerSize (BufferLengthOp);

    BufferOp->Asl.AmlOpcode           = AML_RAW_DATA_CHAIN;

    BufferOp->Asl.AmlOpcodeLength     = 0;

    BufferOp->Asl.AmlLength           = CurrentByteOffset;

    BufferOp->Asl.Value.Buffer        = (UINT8 *) HeadRnode.Next;

    BufferOp->Asl.CompileFlags       |= NODE_IS_RESOURCE_DATA;

}