ACPI_STATUS
AcpiUtCopyIobjectToIobject (
    ACPI_OPERAND_OBJECT     *SourceDesc,
    ACPI_OPERAND_OBJECT     **DestDesc,
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_STATUS             Status = AE_OK;


    ACPI_FUNCTION_TRACE (UtCopyIobjectToIobject);


    /* Create the top level object */

    *DestDesc = AcpiUtCreateInternalObject (ACPI_GET_OBJECT_TYPE (SourceDesc));
    if (!*DestDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Copy the object and possible subobjects */

    if (ACPI_GET_OBJECT_TYPE (SourceDesc) == ACPI_TYPE_PACKAGE)
    {
        Status = AcpiUtCopyIpackageToIpackage (SourceDesc, *DestDesc,
                        WalkState);
    }
    else
    {
        Status = AcpiUtCopySimpleObject (SourceDesc, *DestDesc);
    }

    return_ACPI_STATUS (Status);
}

static ACPI_STATUS
AcpiExAddTable (
    UINT32                  TableIndex,
    ACPI_OPERAND_OBJECT     **DdbHandle)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;


    ACPI_FUNCTION_TRACE (ExAddTable);


    /* Create an object to be the table handle */

    ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
    if (!ObjDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Init the table handle */

    ObjDesc->Common.Flags |= AOPOBJ_DATA_VALID;
    ObjDesc->Reference.Class = ACPI_REFCLASS_TABLE;
    ObjDesc->Reference.Value = TableIndex;
    *DdbHandle = ObjDesc;
    return_ACPI_STATUS (AE_OK);
}

static ACPI_STATUS
AcpiDsCreateMethodMutex (
    ACPI_OPERAND_OBJECT     *MethodDesc)
{
    ACPI_OPERAND_OBJECT     *MutexDesc;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (DsCreateMethodMutex);


    /* Create the new mutex object */

    MutexDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX);
    if (!MutexDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Create the actual OS Mutex */

    Status = AcpiOsCreateMutex (&MutexDesc->Mutex.OsMutex);
    if (ACPI_FAILURE (Status))
    {
        AcpiUtDeleteObjectDesc (MutexDesc);
        return_ACPI_STATUS (Status);
    }

    MutexDesc->Mutex.SyncLevel = MethodDesc->Method.SyncLevel;
    MethodDesc->Method.Mutex = MutexDesc;
    return_ACPI_STATUS (AE_OK);
}

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);
}

ACPI_STATUS
AcpiExOpcode_0A_0T_1R (
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_STATUS             Status = AE_OK;
    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;


    ACPI_FUNCTION_TRACE_STR (ExOpcode_0A_0T_1R,
        AcpiPsGetOpcodeName (WalkState->Opcode));


    /* Examine the AML opcode */

    switch (WalkState->Opcode)
    {
    case AML_TIMER_OP:      /*  Timer () */

        /* Create a return object of type Integer */

        ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
        if (!ReturnDesc)
        {
            Status = AE_NO_MEMORY;
            goto Cleanup;
        }
#if ACPI_MACHINE_WIDTH != 16
        ReturnDesc->Integer.Value = AcpiOsGetTimer ();
#endif
        break;

    default:                /*  Unknown opcode  */

        ACPI_ERROR ((AE_INFO, "Unknown AML opcode %X",
            WalkState->Opcode));
        Status = AE_AML_BAD_OPCODE;
        break;
    }

Cleanup:

    /* Delete return object on error */

    if ((ACPI_FAILURE (Status)) || WalkState->ResultObj)
    {
        AcpiUtRemoveReference (ReturnDesc);
    }
    else
    {
        /* Save the return value */

        WalkState->ResultObj = ReturnDesc;
    }

    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiDsBuildInternalObject (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op,
    ACPI_OPERAND_OBJECT     **ObjDescPtr)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE ("DsBuildInternalObject");


    *ObjDescPtr = NULL;
    if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
    {
        /*
         * This is an named object reference.  If this name was
         * previously looked up in the namespace, it was stored in this op.
         * Otherwise, go ahead and look it up now
         */
        if (!Op->Common.Node)
        {
            Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String,
                            ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
                            ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL,
                            (ACPI_NAMESPACE_NODE **) &(Op->Common.Node));

            if (ACPI_FAILURE (Status))
            {
                ACPI_REPORT_NSERROR (Op->Common.Value.String, Status);
                return_ACPI_STATUS (Status);
            }
        }
    }

    /* Create and init the internal ACPI object */

    ObjDesc = AcpiUtCreateInternalObject ((AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType);
    if (!ObjDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    Status = AcpiDsInitObjectFromOp (WalkState, Op, Op->Common.AmlOpcode, &ObjDesc);
    if (ACPI_FAILURE (Status))
    {
        AcpiUtRemoveReference (ObjDesc);
        return_ACPI_STATUS (Status);
    }

    *ObjDescPtr = ObjDesc;
    return_ACPI_STATUS (AE_OK);
}

static void
AcpiPsLinkModuleCode (
    UINT8                   *AmlStart,
    UINT32                  AmlLength,
    ACPI_OWNER_ID           OwnerId)
{
    ACPI_OPERAND_OBJECT     *Prev;
    ACPI_OPERAND_OBJECT     *Next;
    ACPI_OPERAND_OBJECT     *MethodObj;


    /* Get the tail of the list */

    Prev = Next = AcpiGbl_ModuleCodeList;
    while (Next)
    {
        Prev = Next;
        Next = Next->Method.Mutex;
    }

    /*
     * Insert the module level code into the list. Merge it if it is
     * adjacent to the previous element.
     */
    if (!Prev ||
       ((Prev->Method.AmlStart + Prev->Method.AmlLength) != AmlStart))
    {
        /* Create, initialize, and link a new temporary method object */

        MethodObj = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
        if (!MethodObj)
        {
            return;
        }

        MethodObj->Method.AmlStart = AmlStart;
        MethodObj->Method.AmlLength = AmlLength;
        MethodObj->Method.OwnerId = OwnerId;
        MethodObj->Method.Flags |= AOPOBJ_MODULE_LEVEL;

        if (!Prev)
        {
            AcpiGbl_ModuleCodeList = MethodObj;
        }
        else
        {
            Prev->Method.Mutex = MethodObj;
        }
    }
    else
    {
        Prev->Method.AmlLength += AmlLength;
    }
}

ACPI_STATUS
AcpiNsAttachData (
    ACPI_NAMESPACE_NODE     *Node,
    ACPI_OBJECT_HANDLER     Handler,
    void                    *Data)
{
    ACPI_OPERAND_OBJECT     *PrevObjDesc;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_OPERAND_OBJECT     *DataDesc;


    /* We only allow one attachment per handler */

    PrevObjDesc = NULL;
    ObjDesc = Node->Object;
    while (ObjDesc)
    {
        if ((ObjDesc->Common.Type == ACPI_TYPE_LOCAL_DATA) &&
            (ObjDesc->Data.Handler == Handler))
        {
            return (AE_ALREADY_EXISTS);
        }

        PrevObjDesc = ObjDesc;
        ObjDesc = ObjDesc->Common.NextObject;
    }

    /* Create an internal object for the data */

    DataDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_DATA);
    if (!DataDesc)
    {
        return (AE_NO_MEMORY);
    }

    DataDesc->Data.Handler = Handler;
    DataDesc->Data.Pointer = Data;

    /* Install the data object */

    if (PrevObjDesc)
    {
        PrevObjDesc->Common.NextObject = DataDesc;
    }
    else
    {
        Node->Object = DataDesc;
    }

    return (AE_OK);
}

static ACPI_STATUS
AcpiExAddTable (
    UINT32                  TableIndex,
    ACPI_NAMESPACE_NODE     *ParentNode,
    ACPI_OPERAND_OBJECT     **DdbHandle)
{
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ObjDesc;


    ACPI_FUNCTION_TRACE (ExAddTable);


    /* Create an object to be the table handle */

    ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_REFERENCE);
    if (!ObjDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Init the table handle */

    ObjDesc->Common.Flags |= AOPOBJ_DATA_VALID;
    ObjDesc->Reference.Class = ACPI_REFCLASS_TABLE;
    *DdbHandle = ObjDesc;

    /* Install the new table into the local data structures */

    ObjDesc->Reference.Value = TableIndex;

    /* Add the table to the namespace */

    Status = AcpiNsLoadTable (TableIndex, ParentNode);
    if (ACPI_FAILURE (Status))
    {
        AcpiUtRemoveReference (ObjDesc);
        *DdbHandle = NULL;
        return_ACPI_STATUS (Status);
    }

    /* Execute any module-level code that was found in the table */

    AcpiExExitInterpreter ();
    AcpiNsExecModuleCodeList ();
    AcpiExEnterInterpreter ();

    return_ACPI_STATUS (Status);
}

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);
}

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);
}

ACPI_OPERAND_OBJECT *
AcpiUtCreateBufferObject (
    ACPI_SIZE               BufferSize)
{
    ACPI_OPERAND_OBJECT     *BufferDesc;
    UINT8                   *Buffer;


    ACPI_FUNCTION_TRACE_U32 ("UtCreateBufferObject", BufferSize);


    /*
     * Create a new Buffer object
     */
    BufferDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
    if (!BufferDesc)
    {
        return_PTR (NULL);
    }

    /* Allocate the actual buffer */

    Buffer = ACPI_MEM_CALLOCATE (BufferSize);
    if (!Buffer)
    {
        ACPI_REPORT_ERROR (("CreateBuffer: could not allocate size %X\n", 
            (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);
}

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);
}

void
AcpiDmAddExternalsToNamespace (
    void)
{
    ACPI_STATUS             Status;
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_OPERAND_OBJECT     *MethodDesc;
    ACPI_EXTERNAL_LIST      *External = AcpiGbl_ExternalList;


    while (External)
    {
        /* Add the external name (object) into the namespace */

        Status = AcpiNsLookup (NULL, External->InternalPath, External->Type,
                   ACPI_IMODE_LOAD_PASS1,
                   ACPI_NS_EXTERNAL | ACPI_NS_DONT_OPEN_SCOPE,
                   NULL, &Node);

        if (ACPI_FAILURE (Status))
        {
            ACPI_EXCEPTION ((AE_INFO, Status,
                "while adding external to namespace [%s]",
                External->Path));
        }
        else if (External->Type == ACPI_TYPE_METHOD)
        {
            /* For methods, we need to save the argument count */

            MethodDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
            MethodDesc->Method.ParamCount = (UINT8) External->Value;
            Node->Object = MethodDesc;
        }

        External = External->Next;
    }
}

ACPI_STATUS
AcpiDsBuildInternalPackageObj (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  ElementCount,
    ACPI_OPERAND_OBJECT     **ObjDescPtr)
{
    ACPI_PARSE_OBJECT       *Arg;
    ACPI_PARSE_OBJECT       *Parent;
    ACPI_OPERAND_OBJECT     *ObjDesc = NULL;
    ACPI_STATUS             Status = AE_OK;
    UINT32                  i;
    UINT16                  Index;
    UINT16                  ReferenceCount;


    ACPI_FUNCTION_TRACE (DsBuildInternalPackageObj);


    /* Find the parent of a possibly nested package */

    Parent = Op->Common.Parent;
    while ((Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
           (Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))
    {
        Parent = Parent->Common.Parent;
    }

    /*
     * If we are evaluating a Named package object "Name (xxxx, Package)",
     * the package object already exists, otherwise it must be created.
     */
    ObjDesc = *ObjDescPtr;
    if (!ObjDesc)
    {
        ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE);
        *ObjDescPtr = ObjDesc;
        if (!ObjDesc)
        {
            return_ACPI_STATUS (AE_NO_MEMORY);
        }

        ObjDesc->Package.Node = Parent->Common.Node;
    }

    /*
     * Allocate the element array (array of pointers to the individual
     * objects) based on the NumElements parameter. Add an extra pointer slot
     * so that the list is always null terminated.
     */
    ObjDesc->Package.Elements = ACPI_ALLOCATE_ZEROED (
        ((ACPI_SIZE) ElementCount + 1) * sizeof (void *));

    if (!ObjDesc->Package.Elements)
    {
        AcpiUtDeleteObjectDesc (ObjDesc);
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    ObjDesc->Package.Count = ElementCount;

    /*
     * Initialize the elements of the package, up to the NumElements count.
     * Package is automatically padded with uninitialized (NULL) elements
     * if NumElements is greater than the package list length. Likewise,
     * Package is truncated if NumElements is less than the list length.
     */
    Arg = Op->Common.Value.Arg;
    Arg = Arg->Common.Next;
    for (i = 0; Arg && (i < ElementCount); i++)
    {
        if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP)
        {
            if (Arg->Common.Node->Type == ACPI_TYPE_METHOD)
            {
                /*
                 * A method reference "looks" to the parser to be a method
                 * invocation, so we special case it here
                 */
                Arg->Common.AmlOpcode = AML_INT_NAMEPATH_OP;
                Status = AcpiDsBuildInternalObject (WalkState, Arg,
                            &ObjDesc->Package.Elements[i]);
            }
            else
            {
                /* This package element is already built, just get it */

                ObjDesc->Package.Elements[i] =
                    ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node);
            }
        }
        else
        {
            Status = AcpiDsBuildInternalObject (WalkState, Arg,
                        &ObjDesc->Package.Elements[i]);
        }

        if (*ObjDescPtr)
        {
            /* Existing package, get existing reference count */
//.........这里部分代码省略.........

ACPI_STATUS
AcpiDsBuildInternalBufferObj (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op,
    UINT32                  BufferLength,
    ACPI_OPERAND_OBJECT     **ObjDescPtr)
{
    ACPI_PARSE_OBJECT       *Arg;
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_PARSE_OBJECT       *ByteList;
    UINT32                  ByteListLength = 0;


    ACPI_FUNCTION_TRACE (DsBuildInternalBufferObj);


    /*
     * If we are evaluating a Named buffer object "Name (xxxx, Buffer)".
     * The buffer object already exists (from the NS node), otherwise it must
     * be created.
     */
    ObjDesc = *ObjDescPtr;
    if (!ObjDesc)
    {
        /* Create a new buffer object */

        ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER);
        *ObjDescPtr = ObjDesc;
        if (!ObjDesc)
        {
            return_ACPI_STATUS (AE_NO_MEMORY);
        }
    }

    /*
     * Second arg is the buffer data (optional) ByteList can be either
     * individual bytes or a string initializer. In either case, a
     * ByteList appears in the AML.
     */
    Arg = Op->Common.Value.Arg;         /* skip first arg */

    ByteList = Arg->Named.Next;
    if (ByteList)
    {
        if (ByteList->Common.AmlOpcode != AML_INT_BYTELIST_OP)
        {
            ACPI_ERROR ((AE_INFO,
                "Expecting bytelist, found AML opcode 0x%X in op %p",
                ByteList->Common.AmlOpcode, ByteList));

            AcpiUtRemoveReference (ObjDesc);
            return (AE_TYPE);
        }

        ByteListLength = (UINT32) ByteList->Common.Value.Integer;
    }

    /*
     * The buffer length (number of bytes) will be the larger of:
     * 1) The specified buffer length and
     * 2) The length of the initializer byte list
     */
    ObjDesc->Buffer.Length = BufferLength;
    if (ByteListLength > BufferLength)
    {
        ObjDesc->Buffer.Length = ByteListLength;
    }

    /* Allocate the buffer */

    if (ObjDesc->Buffer.Length == 0)
    {
        ObjDesc->Buffer.Pointer = NULL;
        ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
            "Buffer defined with zero length in AML, creating\n"));
    }
    else
    {
        ObjDesc->Buffer.Pointer = ACPI_ALLOCATE_ZEROED (
                                        ObjDesc->Buffer.Length);
        if (!ObjDesc->Buffer.Pointer)
        {
            AcpiUtDeleteObjectDesc (ObjDesc);
            return_ACPI_STATUS (AE_NO_MEMORY);
        }

        /* Initialize buffer from the ByteList (if present) */

        if (ByteList)
        {
            ACPI_MEMCPY (ObjDesc->Buffer.Pointer, ByteList->Named.Data,
                         ByteListLength);
        }
    }

    ObjDesc->Buffer.Flags |= AOPOBJ_DATA_VALID;
    Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc);
    return_ACPI_STATUS (AE_OK);
}

ACPI_STATUS
AcpiDsBuildInternalObject (
    ACPI_WALK_STATE         *WalkState,
    ACPI_PARSE_OBJECT       *Op,
    ACPI_OPERAND_OBJECT     **ObjDescPtr)
{
    ACPI_OPERAND_OBJECT     *ObjDesc;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (DsBuildInternalObject);


    *ObjDescPtr = NULL;
    if (Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP)
    {
        /*
         * This is a named object reference. If this name was
         * previously looked up in the namespace, it was stored in
         * this op. Otherwise, go ahead and look it up now
         */
        if (!Op->Common.Node)
        {
            /* Check if we are resolving a named reference within a package */

            if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
                (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))
            {
                /*
                 * We won't resolve package elements here, we will do this
                 * after all ACPI tables are loaded into the namespace. This
                 * behavior supports both forward references to named objects
                 * and external references to objects in other tables.
                 */
                goto CreateNewObject;
            }
            else
            {
                Status = AcpiNsLookup (WalkState->ScopeInfo,
                    Op->Common.Value.String,
                    ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
                    ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL,
                    ACPI_CAST_INDIRECT_PTR (
                        ACPI_NAMESPACE_NODE, &(Op->Common.Node)));
                if (ACPI_FAILURE (Status))
                {
                    ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo,
                        Op->Common.Value.String, Status);
                    return_ACPI_STATUS (Status);
                }
            }
        }
    }

CreateNewObject:

    /* Create and init a new internal ACPI object */

    ObjDesc = AcpiUtCreateInternalObject (
        (AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode))->ObjectType);
    if (!ObjDesc)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    Status = AcpiDsInitObjectFromOp (
        WalkState, Op, Op->Common.AmlOpcode, &ObjDesc);
    if (ACPI_FAILURE (Status))
    {
        AcpiUtRemoveReference (ObjDesc);
        return_ACPI_STATUS (Status);
    }

    /*
     * Handling for unresolved package reference elements.
     * These are elements that are namepaths.
     */
    if ((Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
        (Op->Common.Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP))
    {
        ObjDesc->Reference.Resolved = TRUE;

        if ((Op->Common.AmlOpcode == AML_INT_NAMEPATH_OP) &&
            !ObjDesc->Reference.Node)
        {
            /*
             * Name was unresolved above.
             * Get the prefix node for later lookup
             */
            ObjDesc->Reference.Node = WalkState->ScopeInfo->Scope.Node;
            ObjDesc->Reference.Aml = Op->Common.Aml;
            ObjDesc->Reference.Resolved = FALSE;
        }
    }

    *ObjDescPtr = ObjDesc;
    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiExOpcode_1A_0T_1R (
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    ACPI_OPERAND_OBJECT     *TempDesc;
    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
    ACPI_STATUS             Status = AE_OK;
    UINT32                  Type;
    UINT64                  Value;


    ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_0T_1R,
        AcpiPsGetOpcodeName (WalkState->Opcode));


    /* Examine the AML opcode */

    switch (WalkState->Opcode)
    {
    case AML_LNOT_OP:               /* LNot (Operand) */

        ReturnDesc = AcpiUtCreateIntegerObject ((UINT64) 0);
        if (!ReturnDesc)
        {
            Status = AE_NO_MEMORY;
            goto Cleanup;
        }

        /*
         * Set result to ONES (TRUE) if Value == 0. Note:
         * ReturnDesc->Integer.Value is initially == 0 (FALSE) from above.
         */
        if (!Operand[0]->Integer.Value)
        {
            ReturnDesc->Integer.Value = ACPI_UINT64_MAX;
        }
        break;

    case AML_DECREMENT_OP:          /* Decrement (Operand)  */
    case AML_INCREMENT_OP:          /* Increment (Operand)  */
        /*
         * Create a new integer. Can't just get the base integer and
         * increment it because it may be an Arg or Field.
         */
        ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
        if (!ReturnDesc)
        {
            Status = AE_NO_MEMORY;
            goto Cleanup;
        }

        /*
         * Since we are expecting a Reference operand, it can be either a
         * NS Node or an internal object.
         */
        TempDesc = Operand[0];
        if (ACPI_GET_DESCRIPTOR_TYPE (TempDesc) == ACPI_DESC_TYPE_OPERAND)
        {
            /* Internal reference object - prevent deletion */

            AcpiUtAddReference (TempDesc);
        }

        /*
         * Convert the Reference operand to an Integer (This removes a
         * reference on the Operand[0] object)
         *
         * NOTE:  We use LNOT_OP here in order to force resolution of the
         * reference operand to an actual integer.
         */
        Status = AcpiExResolveOperands (AML_LNOT_OP, &TempDesc, WalkState);
        if (ACPI_FAILURE (Status))
        {
            ACPI_EXCEPTION ((AE_INFO, Status,
                "While resolving operands for [%s]",
                AcpiPsGetOpcodeName (WalkState->Opcode)));

            goto Cleanup;
        }

        /*
         * TempDesc is now guaranteed to be an Integer object --
         * Perform the actual increment or decrement
         */
        if (WalkState->Opcode == AML_INCREMENT_OP)
        {
            ReturnDesc->Integer.Value = TempDesc->Integer.Value + 1;
        }
        else
        {
            ReturnDesc->Integer.Value = TempDesc->Integer.Value - 1;
        }

        /* Finished with this Integer object */

        AcpiUtRemoveReference (TempDesc);

        /*
         * Store the result back (indirectly) through the original
//.........这里部分代码省略.........

ACPI_STATUS
AcpiExOpcode_1A_1T_1R (
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_STATUS             Status = AE_OK;
    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
    ACPI_OPERAND_OBJECT     *ReturnDesc2 = NULL;
    UINT32                  Temp32;
    UINT32                  i;
    UINT64                  PowerOfTen;
    UINT64                  Digit;


    ACPI_FUNCTION_TRACE_STR (ExOpcode_1A_1T_1R,
        AcpiPsGetOpcodeName (WalkState->Opcode));


    /* Examine the AML opcode */

    switch (WalkState->Opcode)
    {
    case AML_BIT_NOT_OP:
    case AML_FIND_SET_LEFT_BIT_OP:
    case AML_FIND_SET_RIGHT_BIT_OP:
    case AML_FROM_BCD_OP:
    case AML_TO_BCD_OP:
    case AML_COND_REF_OF_OP:

        /* Create a return object of type Integer for these opcodes */

        ReturnDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
        if (!ReturnDesc)
        {
            Status = AE_NO_MEMORY;
            goto Cleanup;
        }

        switch (WalkState->Opcode)
        {
        case AML_BIT_NOT_OP:            /* Not (Operand, Result)  */

            ReturnDesc->Integer.Value = ~Operand[0]->Integer.Value;
            break;

        case AML_FIND_SET_LEFT_BIT_OP:  /* FindSetLeftBit (Operand, Result) */

            ReturnDesc->Integer.Value = Operand[0]->Integer.Value;

            /*
             * Acpi specification describes Integer type as a little
             * endian unsigned value, so this boundary condition is valid.
             */
            for (Temp32 = 0; ReturnDesc->Integer.Value &&
                    Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32)
            {
                ReturnDesc->Integer.Value >>= 1;
            }

            ReturnDesc->Integer.Value = Temp32;
            break;

        case AML_FIND_SET_RIGHT_BIT_OP: /* FindSetRightBit (Operand, Result) */

            ReturnDesc->Integer.Value = Operand[0]->Integer.Value;

            /*
             * The Acpi specification describes Integer type as a little
             * endian unsigned value, so this boundary condition is valid.
             */
            for (Temp32 = 0; ReturnDesc->Integer.Value &&
                     Temp32 < ACPI_INTEGER_BIT_SIZE; ++Temp32)
            {
                ReturnDesc->Integer.Value <<= 1;
            }

            /* Since the bit position is one-based, subtract from 33 (65) */

            ReturnDesc->Integer.Value =
                Temp32 == 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - Temp32;
            break;

        case AML_FROM_BCD_OP:           /* FromBcd (BCDValue, Result)  */
            /*
             * The 64-bit ACPI integer can hold 16 4-bit BCD characters
             * (if table is 32-bit, integer can hold 8 BCD characters)
             * Convert each 4-bit BCD value
             */
            PowerOfTen = 1;
            ReturnDesc->Integer.Value = 0;
            Digit = Operand[0]->Integer.Value;

            /* Convert each BCD digit (each is one nybble wide) */

            for (i = 0; (i < AcpiGbl_IntegerNybbleWidth) && (Digit > 0); i++)
            {
                /* Get the least significant 4-bit BCD digit */

                Temp32 = ((UINT32) Digit) & 0xF;

//.........这里部分代码省略.........

ACPI_STATUS
AcpiExOpcode_3A_1T_1R (
    ACPI_WALK_STATE         *WalkState)
{
    ACPI_OPERAND_OBJECT     **Operand = &WalkState->Operands[0];
    ACPI_OPERAND_OBJECT     *ReturnDesc = NULL;
    char                    *Buffer = NULL;
    ACPI_STATUS             Status = AE_OK;
    UINT64                  Index;
    ACPI_SIZE               Length;


    ACPI_FUNCTION_TRACE_STR (ExOpcode_3A_1T_1R,
        AcpiPsGetOpcodeName (WalkState->Opcode));


    switch (WalkState->Opcode)
    {
    case AML_MID_OP:    /* Mid (Source[0], Index[1], Length[2], Result[3]) */

        /*
         * Create the return object.  The Source operand is guaranteed to be
         * either a String or a Buffer, so just use its type.
         */
        ReturnDesc = AcpiUtCreateInternalObject (
                        (Operand[0])->Common.Type);
        if (!ReturnDesc)
        {
            Status = AE_NO_MEMORY;
            goto Cleanup;
        }

        /* Get the Integer values from the objects */

        Index = Operand[1]->Integer.Value;
        Length = (ACPI_SIZE) Operand[2]->Integer.Value;

        /*
         * If the index is beyond the length of the String/Buffer, or if the
         * requested length is zero, return a zero-length String/Buffer
         */
        if (Index >= Operand[0]->String.Length)
        {
            Length = 0;
        }

        /* Truncate request if larger than the actual String/Buffer */

        else if ((Index + Length) > Operand[0]->String.Length)
        {
            Length = (ACPI_SIZE) Operand[0]->String.Length -
                        (ACPI_SIZE) Index;
        }

        /* Strings always have a sub-pointer, not so for buffers */

        switch ((Operand[0])->Common.Type)
        {
        case ACPI_TYPE_STRING:

            /* Always allocate a new buffer for the String */

            Buffer = ACPI_ALLOCATE_ZEROED ((ACPI_SIZE) Length + 1);
            if (!Buffer)
            {
                Status = AE_NO_MEMORY;
                goto Cleanup;
            }
            break;

        case ACPI_TYPE_BUFFER:

            /* If the requested length is zero, don't allocate a buffer */

            if (Length > 0)
            {
                /* Allocate a new buffer for the Buffer */

                Buffer = ACPI_ALLOCATE_ZEROED (Length);
                if (!Buffer)
                {
                    Status = AE_NO_MEMORY;
                    goto Cleanup;
                }
            }
            break;

        default:                        /* Should not happen */

            Status = AE_AML_OPERAND_TYPE;
            goto Cleanup;
        }

        if (Buffer)
        {
            /* We have a buffer, copy the portion requested */

            ACPI_MEMCPY (Buffer, Operand[0]->String.Pointer + Index,
                         Length);
        }
//.........这里部分代码省略.........