Initial import of the Intel-maintained ACPI Component Architecture. This

is Intel's reference implementation of the core operating-system ACPI
support.  (This import is on the vendor branch.)

1 files changed, 805 insertions, 0 deletions

diff --git a/sys/contrib/dev/acpica/dsobject.c b/sys/contrib/dev/acpica/dsobject.c
new file mode 100644
index 0000000..71cb151
--- /dev/null
+++ b/sys/contrib/dev/acpica/dsobject.c
@@ -0,0 +1,805 @@
+/******************************************************************************
+ *
+ * Module Name: dsobject - Dispatcher object management routines
+ *              $Revision: 48 $
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999, 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 __DSOBJECT_C__
+
+#include "acpi.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          DISPATCHER
+        MODULE_NAME         ("dsobject")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsInitOneObject
+ *
+ * PARAMETERS:  ObjHandle       - Node
+ *              Level           - Current nesting level
+ *              Context         - Points to a init info struct
+ *              ReturnValue     - Not used
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Callback from AcpiWalkNamespace.  Invoked for every object
+ *              within the  namespace.
+ *
+ *              Currently, the only objects that require initialization are:
+ *              1) Methods
+ *              2) Op Regions
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsInitOneObject (
+    ACPI_HANDLE             ObjHandle,
+    UINT32                  Level,
+    void                    *Context,
+    void                    **ReturnValue)
+{
+    OBJECT_TYPE_INTERNAL    Type;
+    ACPI_STATUS             Status;
+    ACPI_INIT_WALK_INFO     *Info = (ACPI_INIT_WALK_INFO *) Context;
+
+
+    Info->ObjectCount++;
+
+    /*
+     * We are only interested in objects owned by the table that
+     * was just loaded
+     */
+
+    if (((ACPI_NAMESPACE_NODE *) ObjHandle)->OwnerId !=
+            Info->TableDesc->TableId)
+    {
+        return (AE_OK);
+    }
+
+
+    /* And even then, we are only interested in a few object types */
+
+    Type = AcpiNsGetType (ObjHandle);
+
+    switch (Type)
+    {
+
+    case ACPI_TYPE_REGION:
+
+        AcpiDsInitializeRegion (ObjHandle);
+
+        Info->OpRegionCount++;
+        break;
+
+
+    case ACPI_TYPE_METHOD:
+
+        Info->MethodCount++;
+
+        DEBUG_PRINT_RAW (ACPI_OK, ("."));
+
+
+        /*
+         * Always parse methods to detect errors, we may delete
+         * the parse tree below
+         */
+
+        Status = AcpiDsParseMethod (ObjHandle);
+
+        /* TBD: [Errors] what do we do with an error? */
+
+        if (ACPI_FAILURE (Status))
+        {
+            DEBUG_PRINT (ACPI_ERROR,
+                ("DsInitOneObject: Method %p [%4.4s] parse failed! %s\n",
+                ObjHandle, &((ACPI_NAMESPACE_NODE *)ObjHandle)->Name,
+                AcpiCmFormatException (Status)));
+            break;
+        }
+
+        /*
+         * Keep the parse tree only if we are parsing all methods
+         * at init time (versus just-in-time)
+         */
+
+        if (AcpiGbl_WhenToParseMethods != METHOD_PARSE_AT_INIT)
+        {
+            AcpiNsDeleteNamespaceSubtree (ObjHandle);
+        }
+
+        break;
+
+    default:
+        break;
+    }
+
+    /*
+     * We ignore errors from above, and always return OK, since
+     * we don't want to abort the walk on a single error.
+     */
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDsInitializeObjects
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Walk the entire namespace and perform any necessary
+ *              initialization on the objects found therein
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDsInitializeObjects (
+    ACPI_TABLE_DESC         *TableDesc,
+    ACPI_NAMESPACE_NODE     *StartNode)
+{
+    ACPI_STATUS             Status;
+    ACPI_INIT_WALK_INFO     Info;
+
+
+    FUNCTION_TRACE ("DsInitializeObjects");
+
+
+    DEBUG_PRINT (TRACE_DISPATCH,
+        ("DsInitializeObjects: **** Starting initialization of namespace objects ****\n"));
+    DEBUG_PRINT_RAW (ACPI_OK, ("Parsing Methods:"));
+
+
+    Info.MethodCount = 0;
+    Info.OpRegionCount = 0;
+    Info.ObjectCount = 0;
+    Info.TableDesc = TableDesc;
+
+
+    /* Walk entire namespace from the supplied root */
+
+    Status = AcpiWalkNamespace (ACPI_TYPE_ANY, StartNode,
+                                ACPI_UINT32_MAX, AcpiDsInitOneObject,
+                                &Info, NULL);
+    if (ACPI_FAILURE (Status))
+    {
+        DEBUG_PRINT (ACPI_ERROR,
+            ("DsInitializeObjects: WalkNamespace failed! %x\n", Status));
+    }
+
+    DEBUG_PRINT_RAW (ACPI_OK,
+        ("\n%d Control Methods found and parsed (%d nodes total)\n",
+        Info.MethodCount, Info.ObjectCount));
+    DEBUG_PRINT (TRACE_DISPATCH,
+        ("DsInitializeObjects: %d Control Methods found\n", Info.MethodCount));
+    DEBUG_PRINT (TRACE_DISPATCH,
+        ("DsInitializeObjects: %d Op Regions found\n", Info.OpRegionCount));
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    AcpiDsInitObjectFromOp
+ *
+ * PARAMETERS:  Op              - Parser op used to init the internal object
+ *              Opcode          - AML opcode associated with the object
+ *              ObjDesc         - Namespace object to be initialized
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initialize a namespace object from a parser Op and its
+ *              associated arguments.  The namespace object is a more compact
+ *              representation of the Op and its arguments.
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+AcpiDsInitObjectFromOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    UINT16                  Opcode,
+    ACPI_OPERAND_OBJECT     **ObjDesc)
+{
+    ACPI_STATUS             Status;
+    ACPI_PARSE_OBJECT       *Arg;
+    ACPI_PARSE2_OBJECT      *ByteList;
+    ACPI_OPERAND_OBJECT     *ArgDesc;
+    ACPI_OPCODE_INFO        *OpInfo;
+
+
+    OpInfo = AcpiPsGetOpcodeInfo (Opcode);
+    if (ACPI_GET_OP_TYPE (OpInfo) != ACPI_OP_TYPE_OPCODE)
+    {
+        /* Unknown opcode */
+
+        return (AE_TYPE);
+    }
+
+
+    /* Get and prepare the first argument */
+
+    switch ((*ObjDesc)->Common.Type)
+    {
+    case ACPI_TYPE_BUFFER:
+
+        /* First arg is a number */
+
+        AcpiDsCreateOperand (WalkState, Op->Value.Arg);
+        ArgDesc = WalkState->Operands [WalkState->NumOperands - 1];
+        AcpiDsObjStackPop (1, WalkState);
+
+        /* Resolve the object (could be an arg or local) */
+
+        Status = AcpiAmlResolveToValue (&ArgDesc, WalkState);
+        if (ACPI_FAILURE (Status))
+        {
+            AcpiCmRemoveReference (ArgDesc);
+            return (Status);
+        }
+
+        /* We are expecting a number */
+
+        if (ArgDesc->Common.Type != ACPI_TYPE_NUMBER)
+        {
+            DEBUG_PRINT (ACPI_ERROR,
+                ("InitObject: Expecting number, got obj: %p type %X\n",
+                ArgDesc, ArgDesc->Common.Type));
+            AcpiCmRemoveReference (ArgDesc);
+            return (AE_TYPE);
+        }
+
+        /* Get the value, delete the internal object */
+
+        (*ObjDesc)->Buffer.Length = (UINT32) ArgDesc->Number.Value;
+        AcpiCmRemoveReference (ArgDesc);
+
+        /* Allocate the buffer */
+
+        if ((*ObjDesc)->Buffer.Length == 0)
+        {
+            (*ObjDesc)->Buffer.Pointer = NULL;
+            REPORT_WARNING (("Buffer created with zero length in AML\n"));
+            break;
+        }
+
+        else
+        {
+            (*ObjDesc)->Buffer.Pointer =
+                            AcpiCmCallocate ((*ObjDesc)->Buffer.Length);
+
+            if (!(*ObjDesc)->Buffer.Pointer)
+            {
+                return (AE_NO_MEMORY);
+            }
+        }
+
+        /*
+         * Second arg is the buffer data (optional)
+         * ByteList can be either individual bytes or a
+         * string initializer!
+         */
+
+        /* skip first arg */
+        Arg = Op->Value.Arg;
+        ByteList = (ACPI_PARSE2_OBJECT *) Arg->Next;
+        if (ByteList)
+        {
+            if (ByteList->Opcode != AML_BYTELIST_OP)
+            {
+                DEBUG_PRINT (ACPI_ERROR,
+                    ("InitObject: Expecting bytelist, got: %x\n",
+                    ByteList));
+                return (AE_TYPE);
+            }
+
+            MEMCPY ((*ObjDesc)->Buffer.Pointer, ByteList->Data,
+                    (*ObjDesc)->Buffer.Length);
+        }
+
+        break;
+
+
+    case ACPI_TYPE_PACKAGE:
+
+        /*
+         * When called, an internal package object has already
+         *  been built and is pointed to by *ObjDesc.
+         *  AcpiDsBuildInternalObject build another internal
+         *  package object, so remove reference to the original
+         *  so that it is deleted.  Error checking is done
+         *  within the remove reference function.
+         */
+        AcpiCmRemoveReference(*ObjDesc);
+
+        Status = AcpiDsBuildInternalObject (WalkState, Op, ObjDesc);
+        break;
+
+    case ACPI_TYPE_NUMBER:
+        (*ObjDesc)->Number.Value = Op->Value.Integer;
+        break;
+
+
+    case ACPI_TYPE_STRING:
+        (*ObjDesc)->String.Pointer = Op->Value.String;
+        (*ObjDesc)->String.Length = STRLEN (Op->Value.String);
+        break;
+
+
+    case ACPI_TYPE_METHOD:
+        break;
+
+
+    case INTERNAL_TYPE_REFERENCE:
+
+        switch (ACPI_GET_OP_CLASS (OpInfo))
+        {
+        case OPTYPE_LOCAL_VARIABLE:
+
+            /* Split the opcode into a base opcode + offset */
+
+            (*ObjDesc)->Reference.OpCode = AML_LOCAL_OP;
+            (*ObjDesc)->Reference.Offset = Opcode - AML_LOCAL_OP;
+            break;
+
+        case OPTYPE_METHOD_ARGUMENT:
+
+            /* Split the opcode into a base opcode + offset */
+
+            (*ObjDesc)->Reference.OpCode = AML_ARG_OP;
+            (*ObjDesc)->Reference.Offset = Opcode - AML_ARG_OP;
+            break;
+
+        default: /* Constants, Literals, etc.. */
+
+            if (Op->Opcode == AML_NAMEPATH_OP)
+            {
+                /* Node was saved in Op */
+
+                (*ObjDesc)->Reference.Node = Op->Node;
+            }
+
+            (*ObjDesc)->Reference.OpCode = Opcode;
+            break;
+        }
+
+        break;
+
+
+    default:
+
+        DEBUG_PRINT (ACPI_ERROR,
+            ("InitObject: Unimplemented data type: %x\n",
+            (*ObjDesc)->Common.Type));
+
+        break;
+    }
+
+    return (AE_OK);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    AcpiDsBuildInternalSimpleObj
+ *
+ * PARAMETERS:  Op              - Parser object to be translated
+ *              ObjDescPtr      - Where the ACPI internal object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Translate a parser Op object to the equivalent namespace object
+ *              Simple objects are any objects other than a package object!
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+AcpiDsBuildInternalSimpleObj (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_OPERAND_OBJECT     **ObjDescPtr)
+{
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+    OBJECT_TYPE_INTERNAL    Type;
+    ACPI_STATUS             Status;
+    UINT32                  Length;
+    char                    *Name;
+
+
+    FUNCTION_TRACE ("DsBuildInternalSimpleObj");
+
+
+    if (Op->Opcode == AML_NAMEPATH_OP)
+    {
+        /*
+         * This is an object reference.  If The name was
+         * previously looked up in the NS, it is stored in this op.
+         * Otherwise, go ahead and look it up now
+         */
+
+        if (!Op->Node)
+        {
+            Status = AcpiNsLookup (WalkState->ScopeInfo,
+                            Op->Value.String, ACPI_TYPE_ANY,
+                            IMODE_EXECUTE,
+                            NS_SEARCH_PARENT | NS_DONT_OPEN_SCOPE,
+                            NULL,
+                            (ACPI_NAMESPACE_NODE **)&(Op->Node));
+
+            if (ACPI_FAILURE (Status))
+            {
+                if (Status == AE_NOT_FOUND)
+                {
+                    Name = NULL;
+                    AcpiNsExternalizeName (ACPI_UINT32_MAX, Op->Value.String, &Length, &Name);
+
+                    if (Name)
+                    {
+                        REPORT_WARNING (("Reference %s AML 0x%X not found\n",
+                                    Name, Op->AmlOffset));
+                        AcpiCmFree (Name);
+                    }
+                    else
+                    {
+                        REPORT_WARNING (("Reference %s AML 0x%X not found\n",
+                                   Op->Value.String, Op->AmlOffset));
+                    }
+                    *ObjDescPtr = NULL;
+                    return_ACPI_STATUS (AE_OK);
+                }
+
+                return_ACPI_STATUS (Status);
+            }
+        }
+
+        /*
+         * The reference will be a Reference
+         * TBD: [Restructure] unless we really need a separate
+         *  type of INTERNAL_TYPE_REFERENCE change
+         *  AcpiDsMapOpcodeToDataType to handle this case
+         */
+        Type = INTERNAL_TYPE_REFERENCE;
+    }
+    else
+    {
+        Type = AcpiDsMapOpcodeToDataType (Op->Opcode, NULL);
+    }
+
+
+    /* Create and init the internal ACPI object */
+
+    ObjDesc = AcpiCmCreateInternalObject (Type);
+    if (!ObjDesc)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    Status = AcpiDsInitObjectFromOp (WalkState, Op,
+                                        Op->Opcode, &ObjDesc);
+
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiCmRemoveReference (ObjDesc);
+        return_ACPI_STATUS (Status);
+    }
+
+    *ObjDescPtr = ObjDesc;
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    AcpiDsBuildInternalPackageObj
+ *
+ * PARAMETERS:  Op              - Parser object to be translated
+ *              ObjDescPtr      - Where the ACPI internal object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Translate a parser Op package object to the equivalent
+ *              namespace object
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+AcpiDsBuildInternalPackageObj (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_OPERAND_OBJECT     **ObjDescPtr)
+{
+    ACPI_PARSE_OBJECT       *Arg;
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+    ACPI_STATUS             Status = AE_OK;
+
+
+    FUNCTION_TRACE ("DsBuildInternalPackageObj");
+
+
+    ObjDesc = AcpiCmCreateInternalObject (ACPI_TYPE_PACKAGE);
+    if (!ObjDesc)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    /* The first argument must be the package length */
+
+    Arg = Op->Value.Arg;
+    ObjDesc->Package.Count = Arg->Value.Integer;
+
+    /*
+     * Allocate the array of pointers (ptrs to the
+     * individual objects) Add an extra pointer slot so
+     * that the list is always null terminated.
+     */
+
+    ObjDesc->Package.Elements =
+                AcpiCmCallocate ((ObjDesc->Package.Count + 1) *
+                sizeof (void *));
+
+    if (!ObjDesc->Package.Elements)
+    {
+        /* Package vector allocation failure   */
+
+        REPORT_ERROR (("DsBuildInternalPackageObj: Package vector allocation failure\n"));
+
+        AcpiCmDeleteObjectDesc (ObjDesc);
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    ObjDesc->Package.NextElement = ObjDesc->Package.Elements;
+
+    /*
+     * Now init the elements of the package
+     */
+
+    Arg = Arg->Next;
+    while (Arg)
+    {
+        if (Arg->Opcode == AML_PACKAGE_OP)
+        {
+            Status = AcpiDsBuildInternalPackageObj (WalkState, Arg,
+                                        ObjDesc->Package.NextElement);
+        }
+
+        else
+        {
+            Status = AcpiDsBuildInternalSimpleObj (WalkState, Arg,
+                                        ObjDesc->Package.NextElement);
+        }
+
+        ObjDesc->Package.NextElement++;
+        Arg = Arg->Next;
+    }
+
+    *ObjDescPtr = ObjDesc;
+    return_ACPI_STATUS (Status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    AcpiDsBuildInternalObject
+ *
+ * PARAMETERS:  Op              - Parser object to be translated
+ *              ObjDescPtr      - Where the ACPI internal object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Translate a parser Op object to the equivalent namespace
+ *              object
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+AcpiDsBuildInternalObject (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_OPERAND_OBJECT     **ObjDescPtr)
+{
+    ACPI_STATUS             Status;
+
+
+    if (Op->Opcode == AML_PACKAGE_OP)
+    {
+        Status = AcpiDsBuildInternalPackageObj (WalkState, Op,
+                                                ObjDescPtr);
+    }
+
+    else
+    {
+        Status = AcpiDsBuildInternalSimpleObj (WalkState, Op,
+                                                ObjDescPtr);
+    }
+
+    return (Status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION:    AcpiDsCreateNode
+ *
+ * PARAMETERS:  Op              - Parser object to be translated
+ *              ObjDescPtr      - Where the ACPI internal object is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+AcpiDsCreateNode (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_NAMESPACE_NODE     *Node,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_STATUS             Status;
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+
+
+    FUNCTION_TRACE_PTR ("DsCreateNode", Op);
+
+
+    if (!Op->Value.Arg)
+    {
+        /* No arguments, there is nothing to do */
+
+        return_ACPI_STATUS (AE_OK);
+    }
+
+
+    /* Build an internal object for the argument(s) */
+
+    Status = AcpiDsBuildInternalObject (WalkState,
+                                        Op->Value.Arg, &ObjDesc);
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
+
+
+    /* Re-type the object according to it's argument */
+
+    Node->Type = ObjDesc->Common.Type;
+
+    /* Init obj */
+
+    Status = AcpiNsAttachObject ((ACPI_HANDLE) Node, ObjDesc,
+                                    (UINT8) Node->Type);
+    if (ACPI_FAILURE (Status))
+    {
+        goto Cleanup;
+    }
+
+    return_ACPI_STATUS (Status);
+
+
+Cleanup:
+
+    AcpiCmRemoveReference (ObjDesc);
+
+    return_ACPI_STATUS (Status);
+}
+
+