FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/components/resources/rscreate.c

     /*******************************************************************************
      *
      * Module Name: rscreate - Create resource lists/tables
      *
      ******************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/include/acpi.h>
   #include <contrib/dev/acpica/include/accommon.h>
   #include <contrib/dev/acpica/include/acresrc.h>
   #include <contrib/dev/acpica/include/acnamesp.h>
   
   #define _COMPONENT          ACPI_RESOURCES
           ACPI_MODULE_NAME    ("rscreate")
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiBufferToResource
    *
    * PARAMETERS:  AmlBuffer           - Pointer to the resource byte stream
    *              AmlBufferLength     - Length of the AmlBuffer
    *              ResourcePtr         - Where the converted resource is returned
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Convert a raw AML buffer to a resource list
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiBufferToResource (
       UINT8                   *AmlBuffer,
       UINT16                  AmlBufferLength,
       ACPI_RESOURCE           **ResourcePtr)
   {
       ACPI_STATUS             Status;
       ACPI_SIZE               ListSizeNeeded;
       void                    *Resource;
       void                    *CurrentResourcePtr;
   
   
       ACPI_FUNCTION_TRACE (AcpiBufferToResource);
   
   
       /*
        * Note: we allow AE_AML_NO_RESOURCE_END_TAG, since an end tag
        * is not required here.
        */
   
       /* Get the required length for the converted resource */
   
       Status = AcpiRsGetListLength (
           AmlBuffer, AmlBufferLength, &ListSizeNeeded);
       if (Status == AE_AML_NO_RESOURCE_END_TAG)
       {
           Status = AE_OK;
       }
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /* Allocate a buffer for the converted resource */
   
       Resource = ACPI_ALLOCATE_ZEROED (ListSizeNeeded);
       CurrentResourcePtr = Resource;
       if (!Resource)
       {
           return_ACPI_STATUS (AE_NO_MEMORY);
       }
   
       /* Perform the AML-to-Resource conversion */
   
       Status = AcpiUtWalkAmlResources (NULL, AmlBuffer, AmlBufferLength,
           AcpiRsConvertAmlToResources, &CurrentResourcePtr);
       if (Status == AE_AML_NO_RESOURCE_END_TAG)
       {
           Status = AE_OK;
       }
       if (ACPI_FAILURE (Status))
       {
           ACPI_FREE (Resource);
       }
       else
       {
           *ResourcePtr = Resource;
       }
   
       return_ACPI_STATUS (Status);
   }
   
   ACPI_EXPORT_SYMBOL (AcpiBufferToResource)
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiRsCreateResourceList
    *
    * PARAMETERS:  AmlBuffer           - Pointer to the resource byte stream
    *              OutputBuffer        - Pointer to the user's buffer
    *
    * RETURN:      Status: AE_OK if okay, else a valid ACPI_STATUS code
    *              If OutputBuffer is not large enough, OutputBufferLength
    *              indicates how large OutputBuffer should be, else it
    *              indicates how may UINT8 elements of OutputBuffer are valid.
    *
    * DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
    *              execution and parses the stream to create a linked list
    *              of device resources.
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiRsCreateResourceList (
       ACPI_OPERAND_OBJECT     *AmlBuffer,
       ACPI_BUFFER             *OutputBuffer)
   {
   
       ACPI_STATUS             Status;
       UINT8                   *AmlStart;
       ACPI_SIZE               ListSizeNeeded = 0;
       UINT32                  AmlBufferLength;
       void                    *Resource;
   
   
       ACPI_FUNCTION_TRACE (RsCreateResourceList);
   
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AmlBuffer = %p\n",
           AmlBuffer));
   
       /* Params already validated, so we don't re-validate here */
   
       AmlBufferLength = AmlBuffer->Buffer.Length;
       AmlStart = AmlBuffer->Buffer.Pointer;
   
       /*
        * Pass the AmlBuffer into a module that can calculate
        * the buffer size needed for the linked list
        */
       Status = AcpiRsGetListLength (AmlStart, AmlBufferLength,
                   &ListSizeNeeded);
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
           Status, (UINT32) ListSizeNeeded));
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /* Validate/Allocate/Clear caller buffer */
   
       Status = AcpiUtInitializeBuffer (OutputBuffer, ListSizeNeeded);
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /* Do the conversion */
   
       Resource = OutputBuffer->Pointer;
       Status = AcpiUtWalkAmlResources (NULL, AmlStart, AmlBufferLength,
           AcpiRsConvertAmlToResources, &Resource);
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
           OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
       return_ACPI_STATUS (AE_OK);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiRsCreatePciRoutingTable
    *
    * PARAMETERS:  PackageObject           - Pointer to a package containing one
    *                                        of more ACPI_OPERAND_OBJECTs
    *              OutputBuffer            - Pointer to the user's buffer
    *
    * RETURN:      Status  AE_OK if okay, else a valid ACPI_STATUS code.
    *              If the OutputBuffer is too small, the error will be
    *              AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
    *              to the size buffer needed.
    *
    * DESCRIPTION: Takes the ACPI_OPERAND_OBJECT package and creates a
    *              linked list of PCI interrupt descriptions
    *
    * NOTE: It is the caller's responsibility to ensure that the start of the
    * output buffer is aligned properly (if necessary).
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiRsCreatePciRoutingTable (
       ACPI_OPERAND_OBJECT     *PackageObject,
       ACPI_BUFFER             *OutputBuffer)
   {
       UINT8                   *Buffer;
       ACPI_OPERAND_OBJECT     **TopObjectList;
       ACPI_OPERAND_OBJECT     **SubObjectList;
       ACPI_OPERAND_OBJECT     *ObjDesc;
       ACPI_SIZE               BufferSizeNeeded = 0;
       UINT32                  NumberOfElements;
       UINT32                  Index;
       ACPI_PCI_ROUTING_TABLE  *UserPrt;
       ACPI_NAMESPACE_NODE     *Node;
       ACPI_STATUS             Status;
       ACPI_BUFFER             PathBuffer;
   
   
       ACPI_FUNCTION_TRACE (RsCreatePciRoutingTable);
   
   
       /* Params already validated, so we don't re-validate here */
   
       /* Get the required buffer length */
   
       Status = AcpiRsGetPciRoutingTableLength (
           PackageObject,&BufferSizeNeeded);
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
           (UINT32) BufferSizeNeeded));
   
       /* Validate/Allocate/Clear caller buffer */
   
       Status = AcpiUtInitializeBuffer (OutputBuffer, BufferSizeNeeded);
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /*
        * Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
        * package that in turn contains an UINT64 Address, a UINT8 Pin,
        * a Name, and a UINT8 SourceIndex.
        */
       TopObjectList = PackageObject->Package.Elements;
       NumberOfElements = PackageObject->Package.Count;
       Buffer = OutputBuffer->Pointer;
       UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
   
       for (Index = 0; Index < NumberOfElements; Index++)
       {
           /*
            * Point UserPrt past this current structure
            *
            * NOTE: On the first iteration, UserPrt->Length will
            * be zero because we cleared the return buffer earlier
            */
           Buffer += UserPrt->Length;
           UserPrt = ACPI_CAST_PTR (ACPI_PCI_ROUTING_TABLE, Buffer);
   
           /*
            * Fill in the Length field with the information we have at this
            * point. The minus four is to subtract the size of the UINT8
            * Source[4] member because it is added below.
            */
           UserPrt->Length = (sizeof (ACPI_PCI_ROUTING_TABLE) - 4);
   
           /* Each subpackage must be of length 4 */
   
           if ((*TopObjectList)->Package.Count != 4)
           {
               ACPI_ERROR ((AE_INFO,
                   "(PRT[%u]) Need package of length 4, found length %u",
                   Index, (*TopObjectList)->Package.Count));
               return_ACPI_STATUS (AE_AML_PACKAGE_LIMIT);
           }
   
           /*
            * Dereference the subpackage.
            * The SubObjectList will now point to an array of the four IRQ
            * elements: [Address, Pin, Source, SourceIndex]
            */
           SubObjectList = (*TopObjectList)->Package.Elements;
   
           /* 1) First subobject: Dereference the PRT.Address */
   
           ObjDesc = SubObjectList[0];
           if (!ObjDesc || ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
           {
               ACPI_ERROR ((AE_INFO,
                   "(PRT[%u].Address) Need Integer, found %s",
                   Index, AcpiUtGetObjectTypeName (ObjDesc)));
               return_ACPI_STATUS (AE_BAD_DATA);
           }
   
           UserPrt->Address = ObjDesc->Integer.Value;
   
           /* 2) Second subobject: Dereference the PRT.Pin */
   
           ObjDesc = SubObjectList[1];
           if (!ObjDesc || ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
           {
               ACPI_ERROR ((AE_INFO, "(PRT[%u].Pin) Need Integer, found %s",
                   Index, AcpiUtGetObjectTypeName (ObjDesc)));
               return_ACPI_STATUS (AE_BAD_DATA);
           }
   
           UserPrt->Pin = (UINT32) ObjDesc->Integer.Value;
   
           /*
            * 3) Third subobject: Dereference the PRT.SourceName
            * The name may be unresolved (slack mode), so allow a null object
            */
           ObjDesc = SubObjectList[2];
           if (ObjDesc)
           {
               switch (ObjDesc->Common.Type)
               {
               case ACPI_TYPE_LOCAL_REFERENCE:
   
                   if (ObjDesc->Reference.Class != ACPI_REFCLASS_NAME)
                   {
                       ACPI_ERROR ((AE_INFO,
                           "(PRT[%u].Source) Need name, found Reference Class 0x%X",
                           Index, ObjDesc->Reference.Class));
                       return_ACPI_STATUS (AE_BAD_DATA);
                   }
   
                   Node = ObjDesc->Reference.Node;
   
                   /* Use *remaining* length of the buffer as max for pathname */
   
                   PathBuffer.Length = OutputBuffer->Length -
                       (UINT32) ((UINT8 *) UserPrt->Source -
                       (UINT8 *) OutputBuffer->Pointer);
                   PathBuffer.Pointer = UserPrt->Source;
   
                   Status = AcpiNsHandleToPathname (
                       (ACPI_HANDLE) Node, &PathBuffer, FALSE);
                   if (ACPI_FAILURE (Status))
                   {
                       return_ACPI_STATUS (Status);
                   }
   
                   /* +1 to include null terminator */
   
                   UserPrt->Length += (UINT32) strlen (UserPrt->Source) + 1;
                   break;
   
               case ACPI_TYPE_STRING:
   
                   strcpy (UserPrt->Source, ObjDesc->String.Pointer);
   
                   /*
                    * Add to the Length field the length of the string
                    * (add 1 for terminator)
                    */
                   UserPrt->Length += ObjDesc->String.Length + 1;
                   break;
   
               case ACPI_TYPE_INTEGER:
                   /*
                    * If this is a number, then the Source Name is NULL, since
                    * the entire buffer was zeroed out, we can leave this alone.
                    *
                    * Add to the Length field the length of the UINT32 NULL
                    */
                   UserPrt->Length += sizeof (UINT32);
                   break;
   
               default:
   
                  ACPI_ERROR ((AE_INFO,
                      "(PRT[%u].Source) Need Ref/String/Integer, found %s",
                      Index, AcpiUtGetObjectTypeName (ObjDesc)));
                  return_ACPI_STATUS (AE_BAD_DATA);
               }
           }
   
           /* Now align the current length */
   
           UserPrt->Length = (UINT32) ACPI_ROUND_UP_TO_64BIT (UserPrt->Length);
   
           /* 4) Fourth subobject: Dereference the PRT.SourceIndex */
   
           ObjDesc = SubObjectList[3];
           if (!ObjDesc || ObjDesc->Common.Type != ACPI_TYPE_INTEGER)
           {
               ACPI_ERROR ((AE_INFO,
                   "(PRT[%u].SourceIndex) Need Integer, found %s",
                   Index, AcpiUtGetObjectTypeName (ObjDesc)));
               return_ACPI_STATUS (AE_BAD_DATA);
           }
   
           UserPrt->SourceIndex = (UINT32) ObjDesc->Integer.Value;
   
           /* Point to the next ACPI_OPERAND_OBJECT in the top level package */
   
           TopObjectList++;
       }
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
           OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
       return_ACPI_STATUS (AE_OK);
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiRsCreateAmlResources
    *
    * PARAMETERS:  ResourceList            - Pointer to the resource list buffer
    *              OutputBuffer            - Where the AML buffer is returned
    *
    * RETURN:      Status  AE_OK if okay, else a valid ACPI_STATUS code.
    *              If the OutputBuffer is too small, the error will be
    *              AE_BUFFER_OVERFLOW and OutputBuffer->Length will point
    *              to the size buffer needed.
    *
    * DESCRIPTION: Converts a list of device resources to an AML bytestream
    *              to be used as input for the _SRS control method.
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiRsCreateAmlResources (
       ACPI_BUFFER             *ResourceList,
       ACPI_BUFFER             *OutputBuffer)
   {
       ACPI_STATUS             Status;
       ACPI_SIZE               AmlSizeNeeded = 0;
   
   
       ACPI_FUNCTION_TRACE (RsCreateAmlResources);
   
   
       /* Params already validated, no need to re-validate here */
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ResourceList Buffer = %p\n",
           ResourceList->Pointer));
   
       /* Get the buffer size needed for the AML byte stream */
   
       Status = AcpiRsGetAmlLength (
           ResourceList->Pointer, ResourceList->Length, &AmlSizeNeeded);
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
           (UINT32) AmlSizeNeeded, AcpiFormatException (Status)));
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /* Validate/Allocate/Clear caller buffer */
   
       Status = AcpiUtInitializeBuffer (OutputBuffer, AmlSizeNeeded);
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /* Do the conversion */
   
       Status = AcpiRsConvertResourcesToAml (ResourceList->Pointer,
           AmlSizeNeeded, OutputBuffer->Pointer);
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
           OutputBuffer->Pointer, (UINT32) OutputBuffer->Length));
       return_ACPI_STATUS (AE_OK);
   }

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