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 /******************************************************************************
  *
  * Module Name: utobject - ACPI object create/delete/size/cache routines
  *
  *****************************************************************************/
 
 /******************************************************************************
  *
  * 1. Copyright Notice
  *
  * Some or all of this work - Copyright (c) 1999 - 2024, 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 "acpi.h"
 #include "accommon.h"
 #include "acnamesp.h"
 
 
 #define _COMPONENT          ACPI_UTILITIES
         ACPI_MODULE_NAME    ("utobject")
 
 /* Local prototypes */
 
 static ACPI_STATUS
 AcpiUtGetSimpleObjectSize (
     ACPI_OPERAND_OBJECT     *Obj,
     ACPI_SIZE               *ObjLength);
 
 static ACPI_STATUS
 AcpiUtGetPackageObjectSize (
     ACPI_OPERAND_OBJECT     *Obj,
     ACPI_SIZE               *ObjLength);
 
 static ACPI_STATUS
 AcpiUtGetElementLength (
     UINT8                   ObjectType,
     ACPI_OPERAND_OBJECT     *SourceObject,
     ACPI_GENERIC_STATE      *State,
     void                    *Context);
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtCreateInternalObjectDbg
  *
  * PARAMETERS:  ModuleName          - Source file name of caller
  *              LineNumber          - Line number of caller
  *              ComponentId         - Component type of caller
  *              Type                - ACPI Type of the new object
  *
  * RETURN:      A new internal object, null on failure
  *
  * DESCRIPTION: Create and initialize a new internal object.
  *
  * NOTE:        We always allocate the worst-case object descriptor because
  *              these objects are cached, and we want them to be
  *              one-size-satisfies-any-request. This in itself may not be
  *              the most memory efficient, but the efficiency of the object
  *              cache should more than make up for this!
  *
  ******************************************************************************/
 
 ACPI_OPERAND_OBJECT  *
 AcpiUtCreateInternalObjectDbg (
     const char              *ModuleName,
     UINT32                  LineNumber,
     UINT32                  ComponentId,
     ACPI_OBJECT_TYPE        Type)
 {
     ACPI_OPERAND_OBJECT     *Object;
     ACPI_OPERAND_OBJECT     *SecondObject;
 
 
     ACPI_FUNCTION_TRACE_STR (UtCreateInternalObjectDbg,
         AcpiUtGetTypeName (Type));
 
 
     /* Allocate the raw object descriptor */
 
     Object = AcpiUtAllocateObjectDescDbg (
         ModuleName, LineNumber, ComponentId);
     if (!Object)
     {
         return_PTR (NULL);
     }
 
     switch (Type)
     {
     case ACPI_TYPE_REGION:
     case ACPI_TYPE_BUFFER_FIELD:
     case ACPI_TYPE_LOCAL_BANK_FIELD:
 
         /* These types require a secondary object */
 
         SecondObject = AcpiUtAllocateObjectDescDbg (
             ModuleName, LineNumber, ComponentId);
         if (!SecondObject)
         {
             AcpiUtDeleteObjectDesc (Object);
             return_PTR (NULL);
         }
 
         SecondObject->Common.Type = ACPI_TYPE_LOCAL_EXTRA;
         SecondObject->Common.ReferenceCount = 1;
 
         /* Link the second object to the first */
 
         Object->Common.NextObject = SecondObject;
         break;
 
     default:
 
         /* All others have no secondary object */
         break;
     }
 
     /* Save the object type in the object descriptor */
 
     Object->Common.Type = (UINT8) Type;
 
     /* Init the reference count */
 
     Object->Common.ReferenceCount = 1;
 
     /* Any per-type initialization should go here */
 
     return_PTR (Object);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtCreatePackageObject
  *
  * PARAMETERS:  Count               - Number of package elements
  *
  * RETURN:      Pointer to a new Package object, null on failure
  *
  * DESCRIPTION: Create a fully initialized package object
  *
  ******************************************************************************/
 
 ACPI_OPERAND_OBJECT *
 AcpiUtCreatePackageObject (
     UINT32                  Count)
 {
     ACPI_OPERAND_OBJECT     *PackageDesc;
     ACPI_OPERAND_OBJECT     **PackageElements;
 
 
     ACPI_FUNCTION_TRACE_U32 (UtCreatePackageObject, Count);
 
 
     /* Create a new Package object */
 
     PackageDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE);
     if (!PackageDesc)
     {
         return_PTR (NULL);
     }
 
     /*
      * Create the element array. Count+1 allows the array to be null
      * terminated.
      */
     PackageElements = ACPI_ALLOCATE_ZEROED (
         ((ACPI_SIZE) Count + 1) * sizeof (void *));
     if (!PackageElements)
     {
         ACPI_FREE (PackageDesc);
         return_PTR (NULL);
     }
 
     PackageDesc->Package.Count = Count;
     PackageDesc->Package.Elements = PackageElements;
     return_PTR (PackageDesc);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtCreateIntegerObject
  *
  * PARAMETERS:  InitialValue        - Initial value for the integer
  *
  * RETURN:      Pointer to a new Integer object, null on failure
  *
  * DESCRIPTION: Create an initialized integer object
  *
  ******************************************************************************/
 
 ACPI_OPERAND_OBJECT *
 AcpiUtCreateIntegerObject (
     UINT64                  InitialValue)
 {
     ACPI_OPERAND_OBJECT     *IntegerDesc;
 
 
     ACPI_FUNCTION_TRACE (UtCreateIntegerObject);
 
 
     /* Create and initialize a new integer object */
 
     IntegerDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
     if (!IntegerDesc)
     {
         return_PTR (NULL);
     }
 
     IntegerDesc->Integer.Value = InitialValue;
     return_PTR (IntegerDesc);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtCreateBufferObject
  *
  * PARAMETERS:  BufferSize             - Size of buffer to be created
  *
  * RETURN:      Pointer to a new Buffer object, null on failure
  *
  * DESCRIPTION: Create a fully initialized buffer object
  *
  ******************************************************************************/
 
 ACPI_OPERAND_OBJECT *
 AcpiUtCreateBufferObject (
     ACPI_SIZE               BufferSize)
 {
     ACPI_OPERAND_OBJECT     *BufferDesc;
     UINT8                   *Buffer = NULL;
 
 
     ACPI_FUNCTION_TRACE_U32 (UtCreateBufferObject, BufferSize);
 
 
     /* Create a new Buffer object */
 
     BufferDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
     if (!BufferDesc)
     {
         return_PTR (NULL);
     }
 
     /* Create an actual buffer only if size > 0 */
 
     if (BufferSize > 0)
     {
         /* Allocate the actual buffer */
 
         Buffer = ACPI_ALLOCATE_ZEROED (BufferSize);
         if (!Buffer)
         {
             ACPI_ERROR ((AE_INFO, "Could not allocate size %u",
                 (UINT32) BufferSize));
 
             AcpiUtRemoveReference (BufferDesc);
             return_PTR (NULL);
         }
     }
 
     /* Complete buffer object initialization */
 
     BufferDesc->Buffer.Flags |= AOPOBJ_DATA_VALID;
     BufferDesc->Buffer.Pointer = Buffer;
     BufferDesc->Buffer.Length = (UINT32) BufferSize;
 
     /* Return the new buffer descriptor */
 
     return_PTR (BufferDesc);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtCreateStringObject
  *
  * PARAMETERS:  StringSize          - Size of string to be created. Does not
  *                                    include NULL terminator, this is added
  *                                    automatically.
  *
  * RETURN:      Pointer to a new String object
  *
  * DESCRIPTION: Create a fully initialized string object
  *
  ******************************************************************************/
 
 ACPI_OPERAND_OBJECT *
 AcpiUtCreateStringObject (
     ACPI_SIZE               StringSize)
 {
     ACPI_OPERAND_OBJECT     *StringDesc;
     char                    *String;
 
 
     ACPI_FUNCTION_TRACE_U32 (UtCreateStringObject, StringSize);
 
 
     /* Create a new String object */
 
     StringDesc = AcpiUtCreateInternalObject (ACPI_TYPE_STRING);
     if (!StringDesc)
     {
         return_PTR (NULL);
     }
 
     /*
      * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
      * NOTE: Zero-length strings are NULL terminated
      */
     String = ACPI_ALLOCATE_ZEROED (StringSize + 1);
     if (!String)
     {
         ACPI_ERROR ((AE_INFO, "Could not allocate size %u",
             (UINT32) StringSize));
 
         AcpiUtRemoveReference (StringDesc);
         return_PTR (NULL);
     }
 
     /* Complete string object initialization */
 
     StringDesc->String.Pointer = String;
     StringDesc->String.Length = (UINT32) StringSize;
 
     /* Return the new string descriptor */
 
     return_PTR (StringDesc);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtValidInternalObject
  *
  * PARAMETERS:  Object              - Object to be validated
  *
  * RETURN:      TRUE if object is valid, FALSE otherwise
  *
  * DESCRIPTION: Validate a pointer to be of type ACPI_OPERAND_OBJECT
  *
  ******************************************************************************/
 
 BOOLEAN
 AcpiUtValidInternalObject (
     void                    *Object)
 {
 
     ACPI_FUNCTION_NAME (UtValidInternalObject);
 
 
     /* Check for a null pointer */
 
     if (!Object)
     {
         ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "**** Null Object Ptr\n"));
         return (FALSE);
     }
 
     /* Check the descriptor type field */
 
     switch (ACPI_GET_DESCRIPTOR_TYPE (Object))
     {
     case ACPI_DESC_TYPE_OPERAND:
 
         /* The object appears to be a valid ACPI_OPERAND_OBJECT */
 
         return (TRUE);
 
     default:
 
         ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
             "%p is not an ACPI operand obj [%s]\n",
             Object, AcpiUtGetDescriptorName (Object)));
         break;
     }
 
     return (FALSE);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtAllocateObjectDescDbg
  *
  * PARAMETERS:  ModuleName          - Caller's module name (for error output)
  *              LineNumber          - Caller's line number (for error output)
  *              ComponentId         - Caller's component ID (for error output)
  *
  * RETURN:      Pointer to newly allocated object descriptor. Null on error
  *
  * DESCRIPTION: Allocate a new object descriptor. Gracefully handle
  *              error conditions.
  *
  ******************************************************************************/
 
 void *
 AcpiUtAllocateObjectDescDbg (
     const char              *ModuleName,
     UINT32                  LineNumber,
     UINT32                  ComponentId)
 {
     ACPI_OPERAND_OBJECT     *Object;
 
 
     ACPI_FUNCTION_TRACE (UtAllocateObjectDescDbg);
 
 
     Object = AcpiOsAcquireObject (AcpiGbl_OperandCache);
     if (!Object)
     {
         ACPI_ERROR ((ModuleName, LineNumber,
             "Could not allocate an object descriptor"));
 
         return_PTR (NULL);
     }
 
     /* Mark the descriptor type */
 
     ACPI_SET_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_OPERAND);
 
     ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
         Object, (UINT32) sizeof (ACPI_OPERAND_OBJECT)));
 
     return_PTR (Object);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtDeleteObjectDesc
  *
  * PARAMETERS:  Object          - An Acpi internal object to be deleted
  *
  * RETURN:      None.
  *
  * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache
  *
  ******************************************************************************/
 
 void
 AcpiUtDeleteObjectDesc (
     ACPI_OPERAND_OBJECT     *Object)
 {
     ACPI_FUNCTION_TRACE_PTR (UtDeleteObjectDesc, Object);
 
 
     /* Object must be of type ACPI_OPERAND_OBJECT */
 
     if (ACPI_GET_DESCRIPTOR_TYPE (Object) != ACPI_DESC_TYPE_OPERAND)
     {
         ACPI_ERROR ((AE_INFO,
             "%p is not an ACPI Operand object [%s]", Object,
             AcpiUtGetDescriptorName (Object)));
         return_VOID;
     }
 
     (void) AcpiOsReleaseObject (AcpiGbl_OperandCache, Object);
     return_VOID;
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtGetSimpleObjectSize
  *
  * PARAMETERS:  InternalObject     - An ACPI operand object
  *              ObjLength          - Where the length is returned
  *
  * RETURN:      Status
  *
  * DESCRIPTION: This function is called to determine the space required to
  *              contain a simple object for return to an external user.
  *
  *              The length includes the object structure plus any additional
  *              needed space.
  *
  ******************************************************************************/
 
 static ACPI_STATUS
 AcpiUtGetSimpleObjectSize (
     ACPI_OPERAND_OBJECT     *InternalObject,
     ACPI_SIZE               *ObjLength)
 {
     ACPI_SIZE               Length;
     ACPI_SIZE               Size;
     ACPI_STATUS             Status = AE_OK;
 
 
     ACPI_FUNCTION_TRACE_PTR (UtGetSimpleObjectSize, InternalObject);
 
 
     /* Start with the length of the (external) Acpi object */
 
     Length = sizeof (ACPI_OBJECT);
 
     /* A NULL object is allowed, can be a legal uninitialized package element */
 
     if (!InternalObject)
     {
         /*
          * Object is NULL, just return the length of ACPI_OBJECT
          * (A NULL ACPI_OBJECT is an object of all zeroes.)
          */
         *ObjLength = ACPI_ROUND_UP_TO_NATIVE_WORD (Length);
         return_ACPI_STATUS (AE_OK);
     }
 
     /* A Namespace Node should never appear here */
 
     if (ACPI_GET_DESCRIPTOR_TYPE (InternalObject) == ACPI_DESC_TYPE_NAMED)
     {
         /* A namespace node should never get here */
 
         ACPI_ERROR ((AE_INFO,
             "Received a namespace node [%4.4s] "
             "where an operand object is required",
             ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, InternalObject)->Name.Ascii));
         return_ACPI_STATUS (AE_AML_INTERNAL);
     }
 
     /*
      * The final length depends on the object type
      * Strings and Buffers are packed right up against the parent object and
      * must be accessed bytewise or there may be alignment problems on
      * certain processors
      */
     switch (InternalObject->Common.Type)
     {
     case ACPI_TYPE_STRING:
 
         Length += (ACPI_SIZE) InternalObject->String.Length + 1;
         break;
 
     case ACPI_TYPE_BUFFER:
 
         Length += (ACPI_SIZE) InternalObject->Buffer.Length;
         break;
 
     case ACPI_TYPE_INTEGER:
     case ACPI_TYPE_PROCESSOR:
     case ACPI_TYPE_POWER:
 
         /* No extra data for these types */
 
         break;
 
     case ACPI_TYPE_LOCAL_REFERENCE:
 
         switch (InternalObject->Reference.Class)
         {
         case ACPI_REFCLASS_NAME:
             /*
              * Get the actual length of the full pathname to this object.
              * The reference will be converted to the pathname to the object
              */
             Size = AcpiNsGetPathnameLength (InternalObject->Reference.Node);
             if (!Size)
             {
                 return_ACPI_STATUS (AE_BAD_PARAMETER);
             }
 
             Length += ACPI_ROUND_UP_TO_NATIVE_WORD (Size);
             break;
 
         default:
             /*
              * No other reference opcodes are supported.
              * Notably, Locals and Args are not supported, but this may be
              * required eventually.
              */
             ACPI_ERROR ((AE_INFO, "Cannot convert to external object - "
                 "unsupported Reference Class [%s] 0x%X in object %p",
                 AcpiUtGetReferenceName (InternalObject),
                 InternalObject->Reference.Class, InternalObject));
             Status = AE_TYPE;
             break;
         }
         break;
 
     default:
 
         ACPI_ERROR ((AE_INFO, "Cannot convert to external object - "
             "unsupported type [%s] 0x%X in object %p",
             AcpiUtGetObjectTypeName (InternalObject),
             InternalObject->Common.Type, InternalObject));
         Status = AE_TYPE;
         break;
     }
 
     /*
      * Account for the space required by the object rounded up to the next
      * multiple of the machine word size. This keeps each object aligned
      * on a machine word boundary. (preventing alignment faults on some
      * machines.)
      */
     *ObjLength = ACPI_ROUND_UP_TO_NATIVE_WORD (Length);
     return_ACPI_STATUS (Status);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtGetElementLength
  *
  * PARAMETERS:  ACPI_PKG_CALLBACK
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Get the length of one package element.
  *
  ******************************************************************************/
 
 static ACPI_STATUS
 AcpiUtGetElementLength (
     UINT8                   ObjectType,
     ACPI_OPERAND_OBJECT     *SourceObject,
     ACPI_GENERIC_STATE      *State,
     void                    *Context)
 {
     ACPI_STATUS             Status = AE_OK;
     ACPI_PKG_INFO           *Info = (ACPI_PKG_INFO *) Context;
     ACPI_SIZE               ObjectSpace;
 
 
     switch (ObjectType)
     {
     case ACPI_COPY_TYPE_SIMPLE:
         /*
          * Simple object - just get the size (Null object/entry is handled
          * here also) and sum it into the running package length
          */
         Status = AcpiUtGetSimpleObjectSize (SourceObject, &ObjectSpace);
         if (ACPI_FAILURE (Status))
         {
             return (Status);
         }
 
         Info->Length += ObjectSpace;
         break;
 
     case ACPI_COPY_TYPE_PACKAGE:
 
         /* Package object - nothing much to do here, let the walk handle it */
 
         Info->NumPackages++;
         State->Pkg.ThisTargetObj = NULL;
         break;
 
     default:
 
         /* No other types allowed */
 
         return (AE_BAD_PARAMETER);
     }
 
     return (Status);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtGetPackageObjectSize
  *
  * PARAMETERS:  InternalObject      - An ACPI internal object
  *              ObjLength           - Where the length is returned
  *
  * RETURN:      Status
  *
  * DESCRIPTION: This function is called to determine the space required to
  *              contain a package object for return to an external user.
  *
  *              This is moderately complex since a package contains other
  *              objects including packages.
  *
  ******************************************************************************/
 
 static ACPI_STATUS
 AcpiUtGetPackageObjectSize (
     ACPI_OPERAND_OBJECT     *InternalObject,
     ACPI_SIZE               *ObjLength)
 {
     ACPI_STATUS             Status;
     ACPI_PKG_INFO           Info;
 
 
     ACPI_FUNCTION_TRACE_PTR (UtGetPackageObjectSize, InternalObject);
 
 
     Info.Length = 0;
     Info.ObjectSpace = 0;
     Info.NumPackages = 1;
 
     Status = AcpiUtWalkPackageTree (
         InternalObject, NULL, AcpiUtGetElementLength, &Info);
     if (ACPI_FAILURE (Status))
     {
         return_ACPI_STATUS (Status);
     }
 
     /*
      * We have handled all of the objects in all levels of the package.
      * just add the length of the package objects themselves.
      * Round up to the next machine word.
      */
     Info.Length += ACPI_ROUND_UP_TO_NATIVE_WORD (
         sizeof (ACPI_OBJECT)) * (ACPI_SIZE) Info.NumPackages;
 
     /* Return the total package length */
 
     *ObjLength = Info.Length;
     return_ACPI_STATUS (Status);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiUtGetObjectSize
  *
  * PARAMETERS:  InternalObject      - An ACPI internal object
  *              ObjLength           - Where the length will be returned
  *
  * RETURN:      Status
  *
  * DESCRIPTION: This function is called to determine the space required to
  *              contain an object for return to an API user.
  *
  ******************************************************************************/
 
 ACPI_STATUS
 AcpiUtGetObjectSize (
     ACPI_OPERAND_OBJECT     *InternalObject,
     ACPI_SIZE               *ObjLength)
 {
     ACPI_STATUS             Status;
 
 
     ACPI_FUNCTION_ENTRY ();
 
 
     if ((ACPI_GET_DESCRIPTOR_TYPE (InternalObject) ==
             ACPI_DESC_TYPE_OPERAND) &&
         (InternalObject->Common.Type == ACPI_TYPE_PACKAGE))
     {
         Status = AcpiUtGetPackageObjectSize (InternalObject, ObjLength);
     }
     else
     {
         Status = AcpiUtGetSimpleObjectSize (InternalObject, ObjLength);
     }
 
     return (Status);
 }

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