MFV: ACPICA 20090521

9 files changed, 5346 insertions, 0 deletions

diff --git a/sys/contrib/dev/acpica/parser/psargs.c b/sys/contrib/dev/acpica/parser/psargs.c
new file mode 100644
index 0000000..60d4a83
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psargs.c
@@ -0,0 +1,893 @@
+/******************************************************************************
+ *
+ * Module Name: psargs - Parse AML opcode arguments
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, 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 __PSARGS_C__
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+#include "acnamesp.h"
+#include "acdispat.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psargs")
+
+/* Local prototypes */
+
+static UINT32
+AcpiPsGetNextPackageLength (
+    ACPI_PARSE_STATE        *ParserState);
+
+static ACPI_PARSE_OBJECT *
+AcpiPsGetNextField (
+    ACPI_PARSE_STATE        *ParserState);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextPackageLength
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      Decoded package length. On completion, the AML pointer points
+ *              past the length byte or bytes.
+ *
+ * DESCRIPTION: Decode and return a package length field.
+ *              Note: Largest package length is 28 bits, from ACPI specification
+ *
+ ******************************************************************************/
+
+static UINT32
+AcpiPsGetNextPackageLength (
+    ACPI_PARSE_STATE        *ParserState)
+{
+    UINT8                   *Aml = ParserState->Aml;
+    UINT32                  PackageLength = 0;
+    UINT32                  ByteCount;
+    UINT8                   ByteZeroMask = 0x3F; /* Default [0:5] */
+
+
+    ACPI_FUNCTION_TRACE (PsGetNextPackageLength);
+
+
+    /*
+     * Byte 0 bits [6:7] contain the number of additional bytes
+     * used to encode the package length, either 0,1,2, or 3
+     */
+    ByteCount = (Aml[0] >> 6);
+    ParserState->Aml += ((ACPI_SIZE) ByteCount + 1);
+
+    /* Get bytes 3, 2, 1 as needed */
+
+    while (ByteCount)
+    {
+        /*
+         * Final bit positions for the package length bytes:
+         *      Byte3->[20:27]
+         *      Byte2->[12:19]
+         *      Byte1->[04:11]
+         *      Byte0->[00:03]
+         */
+        PackageLength |= (Aml[ByteCount] << ((ByteCount << 3) - 4));
+
+        ByteZeroMask = 0x0F; /* Use bits [0:3] of byte 0 */
+        ByteCount--;
+    }
+
+    /* Byte 0 is a special case, either bits [0:3] or [0:5] are used */
+
+    PackageLength |= (Aml[0] & ByteZeroMask);
+    return_UINT32 (PackageLength);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextPackageEnd
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      Pointer to end-of-package +1
+ *
+ * DESCRIPTION: Get next package length and return a pointer past the end of
+ *              the package.  Consumes the package length field
+ *
+ ******************************************************************************/
+
+UINT8 *
+AcpiPsGetNextPackageEnd (
+    ACPI_PARSE_STATE        *ParserState)
+{
+    UINT8                   *Start = ParserState->Aml;
+    UINT32                  PackageLength;
+
+
+    ACPI_FUNCTION_TRACE (PsGetNextPackageEnd);
+
+
+    /* Function below updates ParserState->Aml */
+
+    PackageLength = AcpiPsGetNextPackageLength (ParserState);
+
+    return_PTR (Start + PackageLength); /* end of package */
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextNamestring
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      Pointer to the start of the name string (pointer points into
+ *              the AML.
+ *
+ * DESCRIPTION: Get next raw namestring within the AML stream.  Handles all name
+ *              prefix characters.  Set parser state to point past the string.
+ *              (Name is consumed from the AML.)
+ *
+ ******************************************************************************/
+
+char *
+AcpiPsGetNextNamestring (
+    ACPI_PARSE_STATE        *ParserState)
+{
+    UINT8                   *Start = ParserState->Aml;
+    UINT8                   *End = ParserState->Aml;
+
+
+    ACPI_FUNCTION_TRACE (PsGetNextNamestring);
+
+
+    /* Point past any namestring prefix characters (backslash or carat) */
+
+    while (AcpiPsIsPrefixChar (*End))
+    {
+        End++;
+    }
+
+    /* Decode the path prefix character */
+
+    switch (*End)
+    {
+    case 0:
+
+        /* NullName */
+
+        if (End == Start)
+        {
+            Start = NULL;
+        }
+        End++;
+        break;
+
+    case AML_DUAL_NAME_PREFIX:
+
+        /* Two name segments */
+
+        End += 1 + (2 * ACPI_NAME_SIZE);
+        break;
+
+    case AML_MULTI_NAME_PREFIX_OP:
+
+        /* Multiple name segments, 4 chars each, count in next byte */
+
+        End += 2 + (*(End + 1) * ACPI_NAME_SIZE);
+        break;
+
+    default:
+
+        /* Single name segment */
+
+        End += ACPI_NAME_SIZE;
+        break;
+    }
+
+    ParserState->Aml = End;
+    return_PTR ((char *) Start);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextNamepath
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *              Arg                 - Where the namepath will be stored
+ *              ArgCount            - If the namepath points to a control method
+ *                                    the method's argument is returned here.
+ *              PossibleMethodCall  - Whether the namepath can possibly be the
+ *                                    start of a method call
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get next name (if method call, return # of required args).
+ *              Names are looked up in the internal namespace to determine
+ *              if the name represents a control method.  If a method
+ *              is found, the number of arguments to the method is returned.
+ *              This information is critical for parsing to continue correctly.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsGetNextNamepath (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_STATE        *ParserState,
+    ACPI_PARSE_OBJECT       *Arg,
+    BOOLEAN                 PossibleMethodCall)
+{
+    ACPI_STATUS             Status;
+    char                    *Path;
+    ACPI_PARSE_OBJECT       *NameOp;
+    ACPI_OPERAND_OBJECT     *MethodDesc;
+    ACPI_NAMESPACE_NODE     *Node;
+    UINT8                   *Start = ParserState->Aml;
+
+
+    ACPI_FUNCTION_TRACE (PsGetNextNamepath);
+
+
+    Path = AcpiPsGetNextNamestring (ParserState);
+    AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
+
+    /* Null path case is allowed, just exit */
+
+    if (!Path)
+    {
+        Arg->Common.Value.Name = Path;
+        return_ACPI_STATUS (AE_OK);
+    }
+
+    /*
+     * Lookup the name in the internal namespace, starting with the current
+     * scope. We don't want to add anything new to the namespace here,
+     * however, so we use MODE_EXECUTE.
+     * Allow searching of the parent tree, but don't open a new scope -
+     * we just want to lookup the object (must be mode EXECUTE to perform
+     * the upsearch)
+     */
+    Status = AcpiNsLookup (WalkState->ScopeInfo, Path,
+                ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+                ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node);
+
+    /*
+     * If this name is a control method invocation, we must
+     * setup the method call
+     */
+    if (ACPI_SUCCESS (Status) &&
+        PossibleMethodCall &&
+        (Node->Type == ACPI_TYPE_METHOD))
+    {
+        if (WalkState->Opcode == AML_UNLOAD_OP)
+        {
+            /*
+             * AcpiPsGetNextNamestring has increased the AML pointer,
+             * so we need to restore the saved AML pointer for method call.
+             */
+            WalkState->ParserState.Aml = Start;
+            WalkState->ArgCount = 1;
+            AcpiPsInitOp (Arg, AML_INT_METHODCALL_OP);
+            return_ACPI_STATUS (AE_OK);
+        }
+
+        /* This name is actually a control method invocation */
+
+        MethodDesc = AcpiNsGetAttachedObject (Node);
+        ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+            "Control Method - %p Desc %p Path=%p\n", Node, MethodDesc, Path));
+
+        NameOp = AcpiPsAllocOp (AML_INT_NAMEPATH_OP);
+        if (!NameOp)
+        {
+            return_ACPI_STATUS (AE_NO_MEMORY);
+        }
+
+        /* Change Arg into a METHOD CALL and attach name to it */
+
+        AcpiPsInitOp (Arg, AML_INT_METHODCALL_OP);
+        NameOp->Common.Value.Name = Path;
+
+        /* Point METHODCALL/NAME to the METHOD Node */
+
+        NameOp->Common.Node = Node;
+        AcpiPsAppendArg (Arg, NameOp);
+
+        if (!MethodDesc)
+        {
+            ACPI_ERROR ((AE_INFO,
+                "Control Method %p has no attached object",
+                Node));
+            return_ACPI_STATUS (AE_AML_INTERNAL);
+        }
+
+        ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+            "Control Method - %p Args %X\n",
+            Node, MethodDesc->Method.ParamCount));
+
+        /* Get the number of arguments to expect */
+
+        WalkState->ArgCount = MethodDesc->Method.ParamCount;
+        return_ACPI_STATUS (AE_OK);
+    }
+
+    /*
+     * Special handling if the name was not found during the lookup -
+     * some NotFound cases are allowed
+     */
+    if (Status == AE_NOT_FOUND)
+    {
+        /* 1) NotFound is ok during load pass 1/2 (allow forward references) */
+
+        if ((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) !=
+                ACPI_PARSE_EXECUTE)
+        {
+            Status = AE_OK;
+        }
+
+        /* 2) NotFound during a CondRefOf(x) is ok by definition */
+
+        else if (WalkState->Op->Common.AmlOpcode == AML_COND_REF_OF_OP)
+        {
+            Status = AE_OK;
+        }
+
+        /*
+         * 3) NotFound while building a Package is ok at this point, we
+         * may flag as an error later if slack mode is not enabled.
+         * (Some ASL code depends on allowing this behavior)
+         */
+        else if ((Arg->Common.Parent) &&
+            ((Arg->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP) ||
+             (Arg->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP)))
+        {
+            Status = AE_OK;
+        }
+    }
+
+    /* Final exception check (may have been changed from code above) */
+
+    if (ACPI_FAILURE (Status))
+    {
+        ACPI_ERROR_NAMESPACE (Path, Status);
+
+        if ((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) ==
+                ACPI_PARSE_EXECUTE)
+        {
+            /* Report a control method execution error */
+
+            Status = AcpiDsMethodError (Status, WalkState);
+        }
+    }
+
+    /* Save the namepath */
+
+    Arg->Common.Value.Name = Path;
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextSimpleArg
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *              ArgType             - The argument type (AML_*_ARG)
+ *              Arg                 - Where the argument is returned
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Get the next simple argument (constant, string, or namestring)
+ *
+ ******************************************************************************/
+
+void
+AcpiPsGetNextSimpleArg (
+    ACPI_PARSE_STATE        *ParserState,
+    UINT32                  ArgType,
+    ACPI_PARSE_OBJECT       *Arg)
+{
+    UINT32                  Length;
+    UINT16                  Opcode;
+    UINT8                   *Aml = ParserState->Aml;
+
+
+    ACPI_FUNCTION_TRACE_U32 (PsGetNextSimpleArg, ArgType);
+
+
+    switch (ArgType)
+    {
+    case ARGP_BYTEDATA:
+
+        /* Get 1 byte from the AML stream */
+
+        Opcode = AML_BYTE_OP;
+        Arg->Common.Value.Integer = (ACPI_INTEGER) *Aml;
+        Length = 1;
+        break;
+
+
+    case ARGP_WORDDATA:
+
+        /* Get 2 bytes from the AML stream */
+
+        Opcode = AML_WORD_OP;
+        ACPI_MOVE_16_TO_64 (&Arg->Common.Value.Integer, Aml);
+        Length = 2;
+        break;
+
+
+    case ARGP_DWORDDATA:
+
+        /* Get 4 bytes from the AML stream */
+
+        Opcode = AML_DWORD_OP;
+        ACPI_MOVE_32_TO_64 (&Arg->Common.Value.Integer, Aml);
+        Length = 4;
+        break;
+
+
+    case ARGP_QWORDDATA:
+
+        /* Get 8 bytes from the AML stream */
+
+        Opcode = AML_QWORD_OP;
+        ACPI_MOVE_64_TO_64 (&Arg->Common.Value.Integer, Aml);
+        Length = 8;
+        break;
+
+
+    case ARGP_CHARLIST:
+
+        /* Get a pointer to the string, point past the string */
+
+        Opcode = AML_STRING_OP;
+        Arg->Common.Value.String = ACPI_CAST_PTR (char, Aml);
+
+        /* Find the null terminator */
+
+        Length = 0;
+        while (Aml[Length])
+        {
+            Length++;
+        }
+        Length++;
+        break;
+
+
+    case ARGP_NAME:
+    case ARGP_NAMESTRING:
+
+        AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
+        Arg->Common.Value.Name = AcpiPsGetNextNamestring (ParserState);
+        return_VOID;
+
+
+    default:
+
+        ACPI_ERROR ((AE_INFO, "Invalid ArgType %X", ArgType));
+        return_VOID;
+    }
+
+    AcpiPsInitOp (Arg, Opcode);
+    ParserState->Aml += Length;
+    return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextField
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      A newly allocated FIELD op
+ *
+ * DESCRIPTION: Get next field (NamedField, ReservedField, or AccessField)
+ *
+ ******************************************************************************/
+
+static ACPI_PARSE_OBJECT *
+AcpiPsGetNextField (
+    ACPI_PARSE_STATE        *ParserState)
+{
+    UINT32                  AmlOffset = (UINT32)
+                                ACPI_PTR_DIFF (ParserState->Aml,
+                                               ParserState->AmlStart);
+    ACPI_PARSE_OBJECT       *Field;
+    UINT16                  Opcode;
+    UINT32                  Name;
+
+
+    ACPI_FUNCTION_TRACE (PsGetNextField);
+
+
+    /* Determine field type */
+
+    switch (ACPI_GET8 (ParserState->Aml))
+    {
+    default:
+
+        Opcode = AML_INT_NAMEDFIELD_OP;
+        break;
+
+    case 0x00:
+
+        Opcode = AML_INT_RESERVEDFIELD_OP;
+        ParserState->Aml++;
+        break;
+
+    case 0x01:
+
+        Opcode = AML_INT_ACCESSFIELD_OP;
+        ParserState->Aml++;
+        break;
+    }
+
+    /* Allocate a new field op */
+
+    Field = AcpiPsAllocOp (Opcode);
+    if (!Field)
+    {
+        return_PTR (NULL);
+    }
+
+    Field->Common.AmlOffset = AmlOffset;
+
+    /* Decode the field type */
+
+    switch (Opcode)
+    {
+    case AML_INT_NAMEDFIELD_OP:
+
+        /* Get the 4-character name */
+
+        ACPI_MOVE_32_TO_32 (&Name, ParserState->Aml);
+        AcpiPsSetName (Field, Name);
+        ParserState->Aml += ACPI_NAME_SIZE;
+
+        /* Get the length which is encoded as a package length */
+
+        Field->Common.Value.Size = AcpiPsGetNextPackageLength (ParserState);
+        break;
+
+
+    case AML_INT_RESERVEDFIELD_OP:
+
+        /* Get the length which is encoded as a package length */
+
+        Field->Common.Value.Size = AcpiPsGetNextPackageLength (ParserState);
+        break;
+
+
+    case AML_INT_ACCESSFIELD_OP:
+
+        /*
+         * Get AccessType and AccessAttrib and merge into the field Op
+         * AccessType is first operand, AccessAttribute is second
+         */
+        Field->Common.Value.Integer = (((UINT32) ACPI_GET8 (ParserState->Aml) << 8));
+        ParserState->Aml++;
+        Field->Common.Value.Integer |= ACPI_GET8 (ParserState->Aml);
+        ParserState->Aml++;
+        break;
+
+    default:
+
+        /* Opcode was set in previous switch */
+        break;
+    }
+
+    return_PTR (Field);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetNextArg
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              ParserState         - Current parser state object
+ *              ArgType             - The argument type (AML_*_ARG)
+ *              ReturnArg           - Where the next arg is returned
+ *
+ * RETURN:      Status, and an op object containing the next argument.
+ *
+ * DESCRIPTION: Get next argument (including complex list arguments that require
+ *              pushing the parser stack)
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsGetNextArg (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_STATE        *ParserState,
+    UINT32                  ArgType,
+    ACPI_PARSE_OBJECT       **ReturnArg)
+{
+    ACPI_PARSE_OBJECT       *Arg = NULL;
+    ACPI_PARSE_OBJECT       *Prev = NULL;
+    ACPI_PARSE_OBJECT       *Field;
+    UINT32                  Subop;
+    ACPI_STATUS             Status = AE_OK;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsGetNextArg, ParserState);
+
+
+    switch (ArgType)
+    {
+    case ARGP_BYTEDATA:
+    case ARGP_WORDDATA:
+    case ARGP_DWORDDATA:
+    case ARGP_CHARLIST:
+    case ARGP_NAME:
+    case ARGP_NAMESTRING:
+
+        /* Constants, strings, and namestrings are all the same size */
+
+        Arg = AcpiPsAllocOp (AML_BYTE_OP);
+        if (!Arg)
+        {
+            return_ACPI_STATUS (AE_NO_MEMORY);
+        }
+        AcpiPsGetNextSimpleArg (ParserState, ArgType, Arg);
+        break;
+
+
+    case ARGP_PKGLENGTH:
+
+        /* Package length, nothing returned */
+
+        ParserState->PkgEnd = AcpiPsGetNextPackageEnd (ParserState);
+        break;
+
+
+    case ARGP_FIELDLIST:
+
+        if (ParserState->Aml < ParserState->PkgEnd)
+        {
+            /* Non-empty list */
+
+            while (ParserState->Aml < ParserState->PkgEnd)
+            {
+                Field = AcpiPsGetNextField (ParserState);
+                if (!Field)
+                {
+                    return_ACPI_STATUS (AE_NO_MEMORY);
+                }
+
+                if (Prev)
+                {
+                    Prev->Common.Next = Field;
+                }
+                else
+                {
+                    Arg = Field;
+                }
+                Prev = Field;
+            }
+
+            /* Skip to End of byte data */
+
+            ParserState->Aml = ParserState->PkgEnd;
+        }
+        break;
+
+
+    case ARGP_BYTELIST:
+
+        if (ParserState->Aml < ParserState->PkgEnd)
+        {
+            /* Non-empty list */
+
+            Arg = AcpiPsAllocOp (AML_INT_BYTELIST_OP);
+            if (!Arg)
+            {
+                return_ACPI_STATUS (AE_NO_MEMORY);
+            }
+
+            /* Fill in bytelist data */
+
+            Arg->Common.Value.Size = (UINT32)
+                ACPI_PTR_DIFF (ParserState->PkgEnd, ParserState->Aml);
+            Arg->Named.Data = ParserState->Aml;
+
+            /* Skip to End of byte data */
+
+            ParserState->Aml = ParserState->PkgEnd;
+        }
+        break;
+
+
+    case ARGP_TARGET:
+    case ARGP_SUPERNAME:
+    case ARGP_SIMPLENAME:
+
+        Subop = AcpiPsPeekOpcode (ParserState);
+        if (Subop == 0                  ||
+            AcpiPsIsLeadingChar (Subop) ||
+            AcpiPsIsPrefixChar (Subop))
+        {
+            /* NullName or NameString */
+
+            Arg = AcpiPsAllocOp (AML_INT_NAMEPATH_OP);
+            if (!Arg)
+            {
+                return_ACPI_STATUS (AE_NO_MEMORY);
+            }
+
+            /* To support SuperName arg of Unload */
+
+            if (WalkState->Opcode == AML_UNLOAD_OP)
+            {
+                Status = AcpiPsGetNextNamepath (WalkState, ParserState, Arg, 1);
+
+                /*
+                 * If the SuperName arg of Unload is a method call,
+                 * we have restored the AML pointer, just free this Arg
+                 */
+                if (Arg->Common.AmlOpcode == AML_INT_METHODCALL_OP)
+                {
+                    AcpiPsFreeOp (Arg);
+                    Arg = NULL;
+                }
+            }
+            else
+            {
+                Status = AcpiPsGetNextNamepath (WalkState, ParserState, Arg, 0);
+            }
+        }
+        else
+        {
+            /* Single complex argument, nothing returned */
+
+            WalkState->ArgCount = 1;
+        }
+        break;
+
+
+    case ARGP_DATAOBJ:
+    case ARGP_TERMARG:
+
+        /* Single complex argument, nothing returned */
+
+        WalkState->ArgCount = 1;
+        break;
+
+
+    case ARGP_DATAOBJLIST:
+    case ARGP_TERMLIST:
+    case ARGP_OBJLIST:
+
+        if (ParserState->Aml < ParserState->PkgEnd)
+        {
+            /* Non-empty list of variable arguments, nothing returned */
+
+            WalkState->ArgCount = ACPI_VAR_ARGS;
+        }
+        break;
+
+
+    default:
+
+        ACPI_ERROR ((AE_INFO, "Invalid ArgType: %X", ArgType));
+        Status = AE_AML_OPERAND_TYPE;
+        break;
+    }
+
+    *ReturnArg = Arg;
+    return_ACPI_STATUS (Status);
+}
diff --git a/sys/contrib/dev/acpica/parser/psloop.c b/sys/contrib/dev/acpica/parser/psloop.c
new file mode 100644
index 0000000..a6f4344
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psloop.c
@@ -0,0 +1,1208 @@
+/******************************************************************************
+ *
+ * Module Name: psloop - Main AML parse loop
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, 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.
+ *
+ *****************************************************************************/
+
+
+/*
+ * Parse the AML and build an operation tree as most interpreters, (such as
+ * Perl) do. Parsing is done by hand rather than with a YACC generated parser
+ * to tightly constrain stack and dynamic memory usage. Parsing is kept
+ * flexible and the code fairly compact by parsing based on a list of AML
+ * opcode templates in AmlOpInfo[].
+ */
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "amlcode.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psloop")
+
+static UINT32               AcpiGbl_Depth = 0;
+
+
+/* Local prototypes */
+
+static ACPI_STATUS
+AcpiPsGetAmlOpcode (
+    ACPI_WALK_STATE         *WalkState);
+
+static ACPI_STATUS
+AcpiPsBuildNamedOp (
+    ACPI_WALK_STATE         *WalkState,
+    UINT8                   *AmlOpStart,
+    ACPI_PARSE_OBJECT       *UnnamedOp,
+    ACPI_PARSE_OBJECT       **Op);
+
+static ACPI_STATUS
+AcpiPsCreateOp (
+    ACPI_WALK_STATE         *WalkState,
+    UINT8                   *AmlOpStart,
+    ACPI_PARSE_OBJECT       **NewOp);
+
+static ACPI_STATUS
+AcpiPsGetArguments (
+    ACPI_WALK_STATE         *WalkState,
+    UINT8                   *AmlOpStart,
+    ACPI_PARSE_OBJECT       *Op);
+
+static ACPI_STATUS
+AcpiPsCompleteOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       **Op,
+    ACPI_STATUS             Status);
+
+static ACPI_STATUS
+AcpiPsCompleteFinalOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_STATUS             Status);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetAmlOpcode
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Extract the next AML opcode from the input stream.
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiPsGetAmlOpcode (
+    ACPI_WALK_STATE         *WalkState)
+{
+
+    ACPI_FUNCTION_TRACE_PTR (PsGetAmlOpcode, WalkState);
+
+
+    WalkState->AmlOffset = (UINT32) ACPI_PTR_DIFF (WalkState->ParserState.Aml,
+                                WalkState->ParserState.AmlStart);
+    WalkState->Opcode = AcpiPsPeekOpcode (&(WalkState->ParserState));
+
+    /*
+     * First cut to determine what we have found:
+     * 1) A valid AML opcode
+     * 2) A name string
+     * 3) An unknown/invalid opcode
+     */
+    WalkState->OpInfo = AcpiPsGetOpcodeInfo (WalkState->Opcode);
+
+    switch (WalkState->OpInfo->Class)
+    {
+    case AML_CLASS_ASCII:
+    case AML_CLASS_PREFIX:
+        /*
+         * Starts with a valid prefix or ASCII char, this is a name
+         * string. Convert the bare name string to a namepath.
+         */
+        WalkState->Opcode = AML_INT_NAMEPATH_OP;
+        WalkState->ArgTypes = ARGP_NAMESTRING;
+        break;
+
+    case AML_CLASS_UNKNOWN:
+
+        /* The opcode is unrecognized. Just skip unknown opcodes */
+
+        ACPI_ERROR ((AE_INFO,
+             "Found unknown opcode %X at AML address %p offset %X, ignoring",
+              WalkState->Opcode, WalkState->ParserState.Aml, WalkState->AmlOffset));
+
+        ACPI_DUMP_BUFFER (WalkState->ParserState.Aml, 128);
+
+        /* Assume one-byte bad opcode */
+
+        WalkState->ParserState.Aml++;
+        return_ACPI_STATUS (AE_CTRL_PARSE_CONTINUE);
+
+    default:
+
+        /* Found opcode info, this is a normal opcode */
+
+        WalkState->ParserState.Aml += AcpiPsGetOpcodeSize (WalkState->Opcode);
+        WalkState->ArgTypes = WalkState->OpInfo->ParseArgs;
+        break;
+    }
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsBuildNamedOp
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              AmlOpStart          - Begin of named Op in AML
+ *              UnnamedOp           - Early Op (not a named Op)
+ *              Op                  - Returned Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Parse a named Op
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiPsBuildNamedOp (
+    ACPI_WALK_STATE         *WalkState,
+    UINT8                   *AmlOpStart,
+    ACPI_PARSE_OBJECT       *UnnamedOp,
+    ACPI_PARSE_OBJECT       **Op)
+{
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_PARSE_OBJECT       *Arg = NULL;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsBuildNamedOp, WalkState);
+
+
+    UnnamedOp->Common.Value.Arg = NULL;
+    UnnamedOp->Common.ArgListLength = 0;
+    UnnamedOp->Common.AmlOpcode = WalkState->Opcode;
+
+    /*
+     * Get and append arguments until we find the node that contains
+     * the name (the type ARGP_NAME).
+     */
+    while (GET_CURRENT_ARG_TYPE (WalkState->ArgTypes) &&
+          (GET_CURRENT_ARG_TYPE (WalkState->ArgTypes) != ARGP_NAME))
+    {
+        Status = AcpiPsGetNextArg (WalkState, &(WalkState->ParserState),
+                    GET_CURRENT_ARG_TYPE (WalkState->ArgTypes), &Arg);
+        if (ACPI_FAILURE (Status))
+        {
+            return_ACPI_STATUS (Status);
+        }
+
+        AcpiPsAppendArg (UnnamedOp, Arg);
+        INCREMENT_ARG_LIST (WalkState->ArgTypes);
+    }
+
+    /*
+     * Make sure that we found a NAME and didn't run out of arguments
+     */
+    if (!GET_CURRENT_ARG_TYPE (WalkState->ArgTypes))
+    {
+        return_ACPI_STATUS (AE_AML_NO_OPERAND);
+    }
+
+    /* We know that this arg is a name, move to next arg */
+
+    INCREMENT_ARG_LIST (WalkState->ArgTypes);
+
+    /*
+     * Find the object. This will either insert the object into
+     * the namespace or simply look it up
+     */
+    WalkState->Op = NULL;
+
+    Status = WalkState->DescendingCallback (WalkState, Op);
+    if (ACPI_FAILURE (Status))
+    {
+        ACPI_EXCEPTION ((AE_INFO, Status, "During name lookup/catalog"));
+        return_ACPI_STATUS (Status);
+    }
+
+    if (!*Op)
+    {
+        return_ACPI_STATUS (AE_CTRL_PARSE_CONTINUE);
+    }
+
+    Status = AcpiPsNextParseState (WalkState, *Op, Status);
+    if (ACPI_FAILURE (Status))
+    {
+        if (Status == AE_CTRL_PENDING)
+        {
+            return_ACPI_STATUS (AE_CTRL_PARSE_PENDING);
+        }
+        return_ACPI_STATUS (Status);
+    }
+
+    AcpiPsAppendArg (*Op, UnnamedOp->Common.Value.Arg);
+    AcpiGbl_Depth++;
+
+    if ((*Op)->Common.AmlOpcode == AML_REGION_OP ||
+        (*Op)->Common.AmlOpcode == AML_DATA_REGION_OP)
+    {
+        /*
+         * Defer final parsing of an OperationRegion body, because we don't
+         * have enough info in the first pass to parse it correctly (i.e.,
+         * there may be method calls within the TermArg elements of the body.)
+         *
+         * However, we must continue parsing because the opregion is not a
+         * standalone package -- we don't know where the end is at this point.
+         *
+         * (Length is unknown until parse of the body complete)
+         */
+        (*Op)->Named.Data = AmlOpStart;
+        (*Op)->Named.Length = 0;
+    }
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsCreateOp
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              AmlOpStart          - Op start in AML
+ *              NewOp               - Returned Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get Op from AML
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiPsCreateOp (
+    ACPI_WALK_STATE         *WalkState,
+    UINT8                   *AmlOpStart,
+    ACPI_PARSE_OBJECT       **NewOp)
+{
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_PARSE_OBJECT       *Op;
+    ACPI_PARSE_OBJECT       *NamedOp = NULL;
+    ACPI_PARSE_OBJECT       *ParentScope;
+    UINT8                   ArgumentCount;
+    const ACPI_OPCODE_INFO  *OpInfo;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsCreateOp, WalkState);
+
+
+    Status = AcpiPsGetAmlOpcode (WalkState);
+    if (Status == AE_CTRL_PARSE_CONTINUE)
+    {
+        return_ACPI_STATUS (AE_CTRL_PARSE_CONTINUE);
+    }
+
+    /* Create Op structure and append to parent's argument list */
+
+    WalkState->OpInfo = AcpiPsGetOpcodeInfo (WalkState->Opcode);
+    Op = AcpiPsAllocOp (WalkState->Opcode);
+    if (!Op)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    if (WalkState->OpInfo->Flags & AML_NAMED)
+    {
+        Status = AcpiPsBuildNamedOp (WalkState, AmlOpStart, Op, &NamedOp);
+        AcpiPsFreeOp (Op);
+        if (ACPI_FAILURE (Status))
+        {
+            return_ACPI_STATUS (Status);
+        }
+
+        *NewOp = NamedOp;
+        return_ACPI_STATUS (AE_OK);
+    }
+
+    /* Not a named opcode, just allocate Op and append to parent */
+
+    if (WalkState->OpInfo->Flags & AML_CREATE)
+    {
+        /*
+         * Backup to beginning of CreateXXXfield declaration
+         * BodyLength is unknown until we parse the body
+         */
+        Op->Named.Data = AmlOpStart;
+        Op->Named.Length = 0;
+    }
+
+    if (WalkState->Opcode == AML_BANK_FIELD_OP)
+    {
+        /*
+         * Backup to beginning of BankField declaration
+         * BodyLength is unknown until we parse the body
+         */
+        Op->Named.Data = AmlOpStart;
+        Op->Named.Length = 0;
+    }
+
+    ParentScope = AcpiPsGetParentScope (&(WalkState->ParserState));
+    AcpiPsAppendArg (ParentScope, Op);
+
+    if (ParentScope)
+    {
+        OpInfo = AcpiPsGetOpcodeInfo (ParentScope->Common.AmlOpcode);
+        if (OpInfo->Flags & AML_HAS_TARGET)
+        {
+            ArgumentCount = AcpiPsGetArgumentCount (OpInfo->Type);
+            if (ParentScope->Common.ArgListLength > ArgumentCount)
+            {
+                Op->Common.Flags |= ACPI_PARSEOP_TARGET;
+            }
+        }
+        else if (ParentScope->Common.AmlOpcode == AML_INCREMENT_OP)
+        {
+            Op->Common.Flags |= ACPI_PARSEOP_TARGET;
+        }
+    }
+
+    if (WalkState->DescendingCallback != NULL)
+    {
+        /*
+         * Find the object. This will either insert the object into
+         * the namespace or simply look it up
+         */
+        WalkState->Op = *NewOp = Op;
+
+        Status = WalkState->DescendingCallback (WalkState, &Op);
+        Status = AcpiPsNextParseState (WalkState, Op, Status);
+        if (Status == AE_CTRL_PENDING)
+        {
+            Status = AE_CTRL_PARSE_PENDING;
+        }
+    }
+
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetArguments
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              AmlOpStart          - Op start in AML
+ *              Op                  - Current Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get arguments for passed Op.
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiPsGetArguments (
+    ACPI_WALK_STATE         *WalkState,
+    UINT8                   *AmlOpStart,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_PARSE_OBJECT       *Arg = NULL;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsGetArguments, WalkState);
+
+
+    switch (Op->Common.AmlOpcode)
+    {
+    case AML_BYTE_OP:       /* AML_BYTEDATA_ARG */
+    case AML_WORD_OP:       /* AML_WORDDATA_ARG */
+    case AML_DWORD_OP:      /* AML_DWORDATA_ARG */
+    case AML_QWORD_OP:      /* AML_QWORDATA_ARG */
+    case AML_STRING_OP:     /* AML_ASCIICHARLIST_ARG */
+
+        /* Fill in constant or string argument directly */
+
+        AcpiPsGetNextSimpleArg (&(WalkState->ParserState),
+            GET_CURRENT_ARG_TYPE (WalkState->ArgTypes), Op);
+        break;
+
+    case AML_INT_NAMEPATH_OP:   /* AML_NAMESTRING_ARG */
+
+        Status = AcpiPsGetNextNamepath (WalkState, &(WalkState->ParserState), Op, 1);
+        if (ACPI_FAILURE (Status))
+        {
+            return_ACPI_STATUS (Status);
+        }
+
+        WalkState->ArgTypes = 0;
+        break;
+
+    default:
+        /*
+         * Op is not a constant or string, append each argument to the Op
+         */
+        while (GET_CURRENT_ARG_TYPE (WalkState->ArgTypes) && !WalkState->ArgCount)
+        {
+            WalkState->AmlOffset = (UINT32) ACPI_PTR_DIFF (WalkState->ParserState.Aml,
+                WalkState->ParserState.AmlStart);
+
+            Status = AcpiPsGetNextArg (WalkState, &(WalkState->ParserState),
+                        GET_CURRENT_ARG_TYPE (WalkState->ArgTypes), &Arg);
+            if (ACPI_FAILURE (Status))
+            {
+                return_ACPI_STATUS (Status);
+            }
+
+            if (Arg)
+            {
+                Arg->Common.AmlOffset = WalkState->AmlOffset;
+                AcpiPsAppendArg (Op, Arg);
+            }
+
+            INCREMENT_ARG_LIST (WalkState->ArgTypes);
+        }
+
+
+        /* Special processing for certain opcodes */
+
+        /* TBD (remove): Temporary mechanism to disable this code if needed */
+
+#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
+
+        if ((WalkState->PassNumber <= ACPI_IMODE_LOAD_PASS1) &&
+            ((WalkState->ParseFlags & ACPI_PARSE_DISASSEMBLE) == 0))
+        {
+            /*
+             * We want to skip If/Else/While constructs during Pass1 because we
+             * want to actually conditionally execute the code during Pass2.
+             *
+             * Except for disassembly, where we always want to walk the
+             * If/Else/While packages
+             */
+            switch (Op->Common.AmlOpcode)
+            {
+            case AML_IF_OP:
+            case AML_ELSE_OP:
+            case AML_WHILE_OP:
+
+                ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+                    "Pass1: Skipping an If/Else/While body\n"));
+
+                /* Skip body of if/else/while in pass 1 */
+
+                WalkState->ParserState.Aml = WalkState->ParserState.PkgEnd;
+                WalkState->ArgCount = 0;
+                break;
+
+            default:
+                break;
+            }
+        }
+#endif
+
+        switch (Op->Common.AmlOpcode)
+        {
+        case AML_METHOD_OP:
+            /*
+             * Skip parsing of control method because we don't have enough
+             * info in the first pass to parse it correctly.
+             *
+             * Save the length and address of the body
+             */
+            Op->Named.Data = WalkState->ParserState.Aml;
+            Op->Named.Length = (UINT32)
+                (WalkState->ParserState.PkgEnd - WalkState->ParserState.Aml);
+
+            /* Skip body of method */
+
+            WalkState->ParserState.Aml = WalkState->ParserState.PkgEnd;
+            WalkState->ArgCount = 0;
+            break;
+
+        case AML_BUFFER_OP:
+        case AML_PACKAGE_OP:
+        case AML_VAR_PACKAGE_OP:
+
+            if ((Op->Common.Parent) &&
+                (Op->Common.Parent->Common.AmlOpcode == AML_NAME_OP) &&
+                (WalkState->PassNumber <= ACPI_IMODE_LOAD_PASS2))
+            {
+                /*
+                 * Skip parsing of Buffers and Packages because we don't have
+                 * enough info in the first pass to parse them correctly.
+                 */
+                Op->Named.Data = AmlOpStart;
+                Op->Named.Length = (UINT32)
+                    (WalkState->ParserState.PkgEnd - AmlOpStart);
+
+                /* Skip body */
+
+                WalkState->ParserState.Aml = WalkState->ParserState.PkgEnd;
+                WalkState->ArgCount = 0;
+            }
+            break;
+
+        case AML_WHILE_OP:
+
+            if (WalkState->ControlState)
+            {
+                WalkState->ControlState->Control.PackageEnd =
+                    WalkState->ParserState.PkgEnd;
+            }
+            break;
+
+        default:
+
+            /* No action for all other opcodes */
+            break;
+        }
+
+        break;
+    }
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsCompleteOp
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              Op                  - Returned Op
+ *              Status              - Parse status before complete Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Complete Op
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiPsCompleteOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       **Op,
+    ACPI_STATUS             Status)
+{
+    ACPI_STATUS             Status2;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsCompleteOp, WalkState);
+
+
+    /*
+     * Finished one argument of the containing scope
+     */
+    WalkState->ParserState.Scope->ParseScope.ArgCount--;
+
+    /* Close this Op (will result in parse subtree deletion) */
+
+    Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
+    if (ACPI_FAILURE (Status2))
+    {
+        return_ACPI_STATUS (Status2);
+    }
+
+    *Op = NULL;
+
+    switch (Status)
+    {
+    case AE_OK:
+        break;
+
+
+    case AE_CTRL_TRANSFER:
+
+        /* We are about to transfer to a called method */
+
+        WalkState->PrevOp = NULL;
+        WalkState->PrevArgTypes = WalkState->ArgTypes;
+        return_ACPI_STATUS (Status);
+
+
+    case AE_CTRL_END:
+
+        AcpiPsPopScope (&(WalkState->ParserState), Op,
+            &WalkState->ArgTypes, &WalkState->ArgCount);
+
+        if (*Op)
+        {
+            WalkState->Op = *Op;
+            WalkState->OpInfo = AcpiPsGetOpcodeInfo ((*Op)->Common.AmlOpcode);
+            WalkState->Opcode = (*Op)->Common.AmlOpcode;
+
+            Status = WalkState->AscendingCallback (WalkState);
+            Status = AcpiPsNextParseState (WalkState, *Op, Status);
+
+            Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
+            if (ACPI_FAILURE (Status2))
+            {
+                return_ACPI_STATUS (Status2);
+            }
+        }
+
+        Status = AE_OK;
+        break;
+
+
+    case AE_CTRL_BREAK:
+    case AE_CTRL_CONTINUE:
+
+        /* Pop off scopes until we find the While */
+
+        while (!(*Op) || ((*Op)->Common.AmlOpcode != AML_WHILE_OP))
+        {
+            AcpiPsPopScope (&(WalkState->ParserState), Op,
+                &WalkState->ArgTypes, &WalkState->ArgCount);
+        }
+
+        /* Close this iteration of the While loop */
+
+        WalkState->Op = *Op;
+        WalkState->OpInfo = AcpiPsGetOpcodeInfo ((*Op)->Common.AmlOpcode);
+        WalkState->Opcode = (*Op)->Common.AmlOpcode;
+
+        Status = WalkState->AscendingCallback (WalkState);
+        Status = AcpiPsNextParseState (WalkState, *Op, Status);
+
+        Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
+        if (ACPI_FAILURE (Status2))
+        {
+            return_ACPI_STATUS (Status2);
+        }
+
+        Status = AE_OK;
+        break;
+
+
+    case AE_CTRL_TERMINATE:
+
+        /* Clean up */
+        do
+        {
+            if (*Op)
+            {
+                Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
+                if (ACPI_FAILURE (Status2))
+                {
+                    return_ACPI_STATUS (Status2);
+                }
+
+                AcpiUtDeleteGenericState (
+                    AcpiUtPopGenericState (&WalkState->ControlState));
+            }
+
+            AcpiPsPopScope (&(WalkState->ParserState), Op,
+                &WalkState->ArgTypes, &WalkState->ArgCount);
+
+        } while (*Op);
+
+        return_ACPI_STATUS (AE_OK);
+
+
+    default:  /* All other non-AE_OK status */
+
+        do
+        {
+            if (*Op)
+            {
+                Status2 = AcpiPsCompleteThisOp (WalkState, *Op);
+                if (ACPI_FAILURE (Status2))
+                {
+                    return_ACPI_STATUS (Status2);
+                }
+            }
+
+            AcpiPsPopScope (&(WalkState->ParserState), Op,
+                &WalkState->ArgTypes, &WalkState->ArgCount);
+
+        } while (*Op);
+
+
+#if 0
+        /*
+         * TBD: Cleanup parse ops on error
+         */
+        if (*Op == NULL)
+        {
+            AcpiPsPopScope (ParserState, Op,
+                &WalkState->ArgTypes, &WalkState->ArgCount);
+        }
+#endif
+        WalkState->PrevOp = NULL;
+        WalkState->PrevArgTypes = WalkState->ArgTypes;
+        return_ACPI_STATUS (Status);
+    }
+
+    /* This scope complete? */
+
+    if (AcpiPsHasCompletedScope (&(WalkState->ParserState)))
+    {
+        AcpiPsPopScope (&(WalkState->ParserState), Op,
+            &WalkState->ArgTypes, &WalkState->ArgCount);
+        ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Popped scope, Op=%p\n", *Op));
+    }
+    else
+    {
+        *Op = NULL;
+    }
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsCompleteFinalOp
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              Op                  - Current Op
+ *              Status              - Current parse status before complete last
+ *                                    Op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Complete last Op.
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiPsCompleteFinalOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_STATUS             Status)
+{
+    ACPI_STATUS             Status2;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsCompleteFinalOp, WalkState);
+
+
+    /*
+     * Complete the last Op (if not completed), and clear the scope stack.
+     * It is easily possible to end an AML "package" with an unbounded number
+     * of open scopes (such as when several ASL blocks are closed with
+     * sequential closing braces). We want to terminate each one cleanly.
+     */
+    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "AML package complete at Op %p\n", Op));
+    do
+    {
+        if (Op)
+        {
+            if (WalkState->AscendingCallback != NULL)
+            {
+                WalkState->Op = Op;
+                WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+                WalkState->Opcode = Op->Common.AmlOpcode;
+
+                Status = WalkState->AscendingCallback (WalkState);
+                Status = AcpiPsNextParseState (WalkState, Op, Status);
+                if (Status == AE_CTRL_PENDING)
+                {
+                    Status = AcpiPsCompleteOp (WalkState, &Op, AE_OK);
+                    if (ACPI_FAILURE (Status))
+                    {
+                        return_ACPI_STATUS (Status);
+                    }
+                }
+
+                if (Status == AE_CTRL_TERMINATE)
+                {
+                    Status = AE_OK;
+
+                    /* Clean up */
+                    do
+                    {
+                        if (Op)
+                        {
+                            Status2 = AcpiPsCompleteThisOp (WalkState, Op);
+                            if (ACPI_FAILURE (Status2))
+                            {
+                                return_ACPI_STATUS (Status2);
+                            }
+                        }
+
+                        AcpiPsPopScope (&(WalkState->ParserState), &Op,
+                            &WalkState->ArgTypes, &WalkState->ArgCount);
+
+                    } while (Op);
+
+                    return_ACPI_STATUS (Status);
+                }
+
+                else if (ACPI_FAILURE (Status))
+                {
+                    /* First error is most important */
+
+                    (void) AcpiPsCompleteThisOp (WalkState, Op);
+                    return_ACPI_STATUS (Status);
+                }
+            }
+
+            Status2 = AcpiPsCompleteThisOp (WalkState, Op);
+            if (ACPI_FAILURE (Status2))
+            {
+                return_ACPI_STATUS (Status2);
+            }
+        }
+
+        AcpiPsPopScope (&(WalkState->ParserState), &Op, &WalkState->ArgTypes,
+            &WalkState->ArgCount);
+
+    } while (Op);
+
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsParseLoop
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Parse AML (pointed to by the current parser state) and return
+ *              a tree of ops.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsParseLoop (
+    ACPI_WALK_STATE         *WalkState)
+{
+    ACPI_STATUS             Status = AE_OK;
+    ACPI_PARSE_OBJECT       *Op = NULL;     /* current op */
+    ACPI_PARSE_STATE        *ParserState;
+    UINT8                   *AmlOpStart = NULL;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsParseLoop, WalkState);
+
+
+    if (WalkState->DescendingCallback == NULL)
+    {
+        return_ACPI_STATUS (AE_BAD_PARAMETER);
+    }
+
+    ParserState = &WalkState->ParserState;
+    WalkState->ArgTypes = 0;
+
+#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
+
+    if (WalkState->WalkType & ACPI_WALK_METHOD_RESTART)
+    {
+        /* We are restarting a preempted control method */
+
+        if (AcpiPsHasCompletedScope (ParserState))
+        {
+            /*
+             * We must check if a predicate to an IF or WHILE statement
+             * was just completed
+             */
+            if ((ParserState->Scope->ParseScope.Op) &&
+               ((ParserState->Scope->ParseScope.Op->Common.AmlOpcode == AML_IF_OP) ||
+                (ParserState->Scope->ParseScope.Op->Common.AmlOpcode == AML_WHILE_OP)) &&
+                (WalkState->ControlState) &&
+                (WalkState->ControlState->Common.State ==
+                    ACPI_CONTROL_PREDICATE_EXECUTING))
+            {
+                /*
+                 * A predicate was just completed, get the value of the
+                 * predicate and branch based on that value
+                 */
+                WalkState->Op = NULL;
+                Status = AcpiDsGetPredicateValue (WalkState, ACPI_TO_POINTER (TRUE));
+                if (ACPI_FAILURE (Status) &&
+                    ((Status & AE_CODE_MASK) != AE_CODE_CONTROL))
+                {
+                    if (Status == AE_AML_NO_RETURN_VALUE)
+                    {
+                        ACPI_EXCEPTION ((AE_INFO, Status,
+                            "Invoked method did not return a value"));
+
+                    }
+
+                    ACPI_EXCEPTION ((AE_INFO, Status, "GetPredicate Failed"));
+                    return_ACPI_STATUS (Status);
+                }
+
+                Status = AcpiPsNextParseState (WalkState, Op, Status);
+            }
+
+            AcpiPsPopScope (ParserState, &Op,
+                &WalkState->ArgTypes, &WalkState->ArgCount);
+            ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Popped scope, Op=%p\n", Op));
+        }
+        else if (WalkState->PrevOp)
+        {
+            /* We were in the middle of an op */
+
+            Op = WalkState->PrevOp;
+            WalkState->ArgTypes = WalkState->PrevArgTypes;
+        }
+    }
+#endif
+
+    /* Iterative parsing loop, while there is more AML to process: */
+
+    while ((ParserState->Aml < ParserState->AmlEnd) || (Op))
+    {
+        AmlOpStart = ParserState->Aml;
+        if (!Op)
+        {
+            Status = AcpiPsCreateOp (WalkState, AmlOpStart, &Op);
+            if (ACPI_FAILURE (Status))
+            {
+                if (Status == AE_CTRL_PARSE_CONTINUE)
+                {
+                    continue;
+                }
+
+                if (Status == AE_CTRL_PARSE_PENDING)
+                {
+                    Status = AE_OK;
+                }
+
+                Status = AcpiPsCompleteOp (WalkState, &Op, Status);
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
+
+                continue;
+            }
+
+            Op->Common.AmlOffset = WalkState->AmlOffset;
+
+            if (WalkState->OpInfo)
+            {
+                ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+                    "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n",
+                     (UINT32) Op->Common.AmlOpcode, WalkState->OpInfo->Name,
+                     Op, ParserState->Aml, Op->Common.AmlOffset));
+            }
+        }
+
+
+        /*
+         * Start ArgCount at zero because we don't know if there are
+         * any args yet
+         */
+        WalkState->ArgCount  = 0;
+
+        /* Are there any arguments that must be processed? */
+
+        if (WalkState->ArgTypes)
+        {
+            /* Get arguments */
+
+            Status = AcpiPsGetArguments (WalkState, AmlOpStart, Op);
+            if (ACPI_FAILURE (Status))
+            {
+                Status = AcpiPsCompleteOp (WalkState, &Op, Status);
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
+
+                continue;
+            }
+        }
+
+        /* Check for arguments that need to be processed */
+
+        if (WalkState->ArgCount)
+        {
+            /*
+             * There are arguments (complex ones), push Op and
+             * prepare for argument
+             */
+            Status = AcpiPsPushScope (ParserState, Op,
+                        WalkState->ArgTypes, WalkState->ArgCount);
+            if (ACPI_FAILURE (Status))
+            {
+                Status = AcpiPsCompleteOp (WalkState, &Op, Status);
+                if (ACPI_FAILURE (Status))
+                {
+                    return_ACPI_STATUS (Status);
+                }
+
+                continue;
+            }
+
+            Op = NULL;
+            continue;
+        }
+
+        /*
+         * All arguments have been processed -- Op is complete,
+         * prepare for next
+         */
+        WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+        if (WalkState->OpInfo->Flags & AML_NAMED)
+        {
+            if (AcpiGbl_Depth)
+            {
+                AcpiGbl_Depth--;
+            }
+
+            if (Op->Common.AmlOpcode == AML_REGION_OP ||
+                Op->Common.AmlOpcode == AML_DATA_REGION_OP)
+            {
+                /*
+                 * Skip parsing of control method or opregion body,
+                 * because we don't have enough info in the first pass
+                 * to parse them correctly.
+                 *
+                 * Completed parsing an OpRegion declaration, we now
+                 * know the length.
+                 */
+                Op->Named.Length = (UINT32) (ParserState->Aml - Op->Named.Data);
+            }
+        }
+
+        if (WalkState->OpInfo->Flags & AML_CREATE)
+        {
+            /*
+             * Backup to beginning of CreateXXXfield declaration (1 for
+             * Opcode)
+             *
+             * BodyLength is unknown until we parse the body
+             */
+            Op->Named.Length = (UINT32) (ParserState->Aml - Op->Named.Data);
+        }
+
+        if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP)
+        {
+            /*
+             * Backup to beginning of BankField declaration
+             *
+             * BodyLength is unknown until we parse the body
+             */
+            Op->Named.Length = (UINT32) (ParserState->Aml - Op->Named.Data);
+        }
+
+        /* This op complete, notify the dispatcher */
+
+        if (WalkState->AscendingCallback != NULL)
+        {
+            WalkState->Op = Op;
+            WalkState->Opcode = Op->Common.AmlOpcode;
+
+            Status = WalkState->AscendingCallback (WalkState);
+            Status = AcpiPsNextParseState (WalkState, Op, Status);
+            if (Status == AE_CTRL_PENDING)
+            {
+                Status = AE_OK;
+            }
+        }
+
+        Status = AcpiPsCompleteOp (WalkState, &Op, Status);
+        if (ACPI_FAILURE (Status))
+        {
+            return_ACPI_STATUS (Status);
+        }
+
+    } /* while ParserState->Aml */
+
+    Status = AcpiPsCompleteFinalOp (WalkState, Op, Status);
+    return_ACPI_STATUS (Status);
+}
+
diff --git a/sys/contrib/dev/acpica/parser/psopcode.c b/sys/contrib/dev/acpica/parser/psopcode.c
new file mode 100644
index 0000000..d107c52
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psopcode.c
@@ -0,0 +1,589 @@
+/******************************************************************************
+ *
+ * Module Name: psopcode - Parser/Interpreter opcode information table
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "acopcode.h"
+#include "amlcode.h"
+
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psopcode")
+
+
+static const UINT8          AcpiGbl_ArgumentCount[] = {0,1,1,1,1,2,2,2,2,3,3,6};
+
+
+/*******************************************************************************
+ *
+ * NAME:        AcpiGbl_AmlOpInfo
+ *
+ * DESCRIPTION: Opcode table. Each entry contains <opcode, type, name, operands>
+ *              The name is a simple ascii string, the operand specifier is an
+ *              ascii string with one letter per operand.  The letter specifies
+ *              the operand type.
+ *
+ ******************************************************************************/
+
+/*
+ * Summary of opcode types/flags
+ *
+
+ Opcodes that have associated namespace objects (AML_NSOBJECT flag)
+
+    AML_SCOPE_OP
+    AML_DEVICE_OP
+    AML_THERMAL_ZONE_OP
+    AML_METHOD_OP
+    AML_POWER_RES_OP
+    AML_PROCESSOR_OP
+    AML_FIELD_OP
+    AML_INDEX_FIELD_OP
+    AML_BANK_FIELD_OP
+    AML_NAME_OP
+    AML_ALIAS_OP
+    AML_MUTEX_OP
+    AML_EVENT_OP
+    AML_REGION_OP
+    AML_CREATE_FIELD_OP
+    AML_CREATE_BIT_FIELD_OP
+    AML_CREATE_BYTE_FIELD_OP
+    AML_CREATE_WORD_FIELD_OP
+    AML_CREATE_DWORD_FIELD_OP
+    AML_CREATE_QWORD_FIELD_OP
+    AML_INT_NAMEDFIELD_OP
+    AML_INT_METHODCALL_OP
+    AML_INT_NAMEPATH_OP
+
+  Opcodes that are "namespace" opcodes (AML_NSOPCODE flag)
+
+    AML_SCOPE_OP
+    AML_DEVICE_OP
+    AML_THERMAL_ZONE_OP
+    AML_METHOD_OP
+    AML_POWER_RES_OP
+    AML_PROCESSOR_OP
+    AML_FIELD_OP
+    AML_INDEX_FIELD_OP
+    AML_BANK_FIELD_OP
+    AML_NAME_OP
+    AML_ALIAS_OP
+    AML_MUTEX_OP
+    AML_EVENT_OP
+    AML_REGION_OP
+    AML_INT_NAMEDFIELD_OP
+
+  Opcodes that have an associated namespace node (AML_NSNODE flag)
+
+    AML_SCOPE_OP
+    AML_DEVICE_OP
+    AML_THERMAL_ZONE_OP
+    AML_METHOD_OP
+    AML_POWER_RES_OP
+    AML_PROCESSOR_OP
+    AML_NAME_OP
+    AML_ALIAS_OP
+    AML_MUTEX_OP
+    AML_EVENT_OP
+    AML_REGION_OP
+    AML_CREATE_FIELD_OP
+    AML_CREATE_BIT_FIELD_OP
+    AML_CREATE_BYTE_FIELD_OP
+    AML_CREATE_WORD_FIELD_OP
+    AML_CREATE_DWORD_FIELD_OP
+    AML_CREATE_QWORD_FIELD_OP
+    AML_INT_NAMEDFIELD_OP
+    AML_INT_METHODCALL_OP
+    AML_INT_NAMEPATH_OP
+
+  Opcodes that define named ACPI objects (AML_NAMED flag)
+
+    AML_SCOPE_OP
+    AML_DEVICE_OP
+    AML_THERMAL_ZONE_OP
+    AML_METHOD_OP
+    AML_POWER_RES_OP
+    AML_PROCESSOR_OP
+    AML_NAME_OP
+    AML_ALIAS_OP
+    AML_MUTEX_OP
+    AML_EVENT_OP
+    AML_REGION_OP
+    AML_INT_NAMEDFIELD_OP
+
+  Opcodes that contain executable AML as part of the definition that
+  must be deferred until needed
+
+    AML_METHOD_OP
+    AML_VAR_PACKAGE_OP
+    AML_CREATE_FIELD_OP
+    AML_CREATE_BIT_FIELD_OP
+    AML_CREATE_BYTE_FIELD_OP
+    AML_CREATE_WORD_FIELD_OP
+    AML_CREATE_DWORD_FIELD_OP
+    AML_CREATE_QWORD_FIELD_OP
+    AML_REGION_OP
+    AML_BUFFER_OP
+
+  Field opcodes
+
+    AML_CREATE_FIELD_OP
+    AML_FIELD_OP
+    AML_INDEX_FIELD_OP
+    AML_BANK_FIELD_OP
+
+  Field "Create" opcodes
+
+    AML_CREATE_FIELD_OP
+    AML_CREATE_BIT_FIELD_OP
+    AML_CREATE_BYTE_FIELD_OP
+    AML_CREATE_WORD_FIELD_OP
+    AML_CREATE_DWORD_FIELD_OP
+    AML_CREATE_QWORD_FIELD_OP
+
+ ******************************************************************************/
+
+
+/*
+ * Master Opcode information table.  A summary of everything we know about each
+ * opcode, all in one place.
+ */
+const ACPI_OPCODE_INFO    AcpiGbl_AmlOpInfo[AML_NUM_OPCODES] =
+{
+/*! [Begin] no source code translation */
+/* Index           Name                 Parser Args               Interpreter Args                ObjectType                    Class                      Type                  Flags */
+
+/* 00 */ ACPI_OP ("Zero",               ARGP_ZERO_OP,              ARGI_ZERO_OP,               ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_CONSTANT,        AML_CONSTANT),
+/* 01 */ ACPI_OP ("One",                ARGP_ONE_OP,               ARGI_ONE_OP,                ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_CONSTANT,        AML_CONSTANT),
+/* 02 */ ACPI_OP ("Alias",              ARGP_ALIAS_OP,             ARGI_ALIAS_OP,              ACPI_TYPE_LOCAL_ALIAS,       AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_SIMPLE,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 03 */ ACPI_OP ("Name",               ARGP_NAME_OP,              ARGI_NAME_OP,               ACPI_TYPE_ANY,               AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_COMPLEX,   AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 04 */ ACPI_OP ("ByteConst",          ARGP_BYTE_OP,              ARGI_BYTE_OP,               ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         AML_CONSTANT),
+/* 05 */ ACPI_OP ("WordConst",          ARGP_WORD_OP,              ARGI_WORD_OP,               ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         AML_CONSTANT),
+/* 06 */ ACPI_OP ("DwordConst",         ARGP_DWORD_OP,             ARGI_DWORD_OP,              ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         AML_CONSTANT),
+/* 07 */ ACPI_OP ("String",             ARGP_STRING_OP,            ARGI_STRING_OP,             ACPI_TYPE_STRING,            AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         AML_CONSTANT),
+/* 08 */ ACPI_OP ("Scope",              ARGP_SCOPE_OP,             ARGI_SCOPE_OP,              ACPI_TYPE_LOCAL_SCOPE,       AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_NO_OBJ,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 09 */ ACPI_OP ("Buffer",             ARGP_BUFFER_OP,            ARGI_BUFFER_OP,             ACPI_TYPE_BUFFER,            AML_CLASS_CREATE,          AML_TYPE_CREATE_OBJECT,   AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+/* 0A */ ACPI_OP ("Package",            ARGP_PACKAGE_OP,           ARGI_PACKAGE_OP,            ACPI_TYPE_PACKAGE,           AML_CLASS_CREATE,          AML_TYPE_CREATE_OBJECT,   AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+/* 0B */ ACPI_OP ("Method",             ARGP_METHOD_OP,            ARGI_METHOD_OP,             ACPI_TYPE_METHOD,            AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_COMPLEX,   AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED | AML_DEFER),
+/* 0C */ ACPI_OP ("Local0",             ARGP_LOCAL0,               ARGI_LOCAL0,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 0D */ ACPI_OP ("Local1",             ARGP_LOCAL1,               ARGI_LOCAL1,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 0E */ ACPI_OP ("Local2",             ARGP_LOCAL2,               ARGI_LOCAL2,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 0F */ ACPI_OP ("Local3",             ARGP_LOCAL3,               ARGI_LOCAL3,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 10 */ ACPI_OP ("Local4",             ARGP_LOCAL4,               ARGI_LOCAL4,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 11 */ ACPI_OP ("Local5",             ARGP_LOCAL5,               ARGI_LOCAL5,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 12 */ ACPI_OP ("Local6",             ARGP_LOCAL6,               ARGI_LOCAL6,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 13 */ ACPI_OP ("Local7",             ARGP_LOCAL7,               ARGI_LOCAL7,                ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LOCAL_VARIABLE,  0),
+/* 14 */ ACPI_OP ("Arg0",               ARGP_ARG0,                 ARGI_ARG0,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 15 */ ACPI_OP ("Arg1",               ARGP_ARG1,                 ARGI_ARG1,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 16 */ ACPI_OP ("Arg2",               ARGP_ARG2,                 ARGI_ARG2,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 17 */ ACPI_OP ("Arg3",               ARGP_ARG3,                 ARGI_ARG3,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 18 */ ACPI_OP ("Arg4",               ARGP_ARG4,                 ARGI_ARG4,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 19 */ ACPI_OP ("Arg5",               ARGP_ARG5,                 ARGI_ARG5,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 1A */ ACPI_OP ("Arg6",               ARGP_ARG6,                 ARGI_ARG6,                  ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_METHOD_ARGUMENT, 0),
+/* 1B */ ACPI_OP ("Store",              ARGP_STORE_OP,             ARGI_STORE_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R),
+/* 1C */ ACPI_OP ("RefOf",              ARGP_REF_OF_OP,            ARGI_REF_OF_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R),
+/* 1D */ ACPI_OP ("Add",                ARGP_ADD_OP,               ARGI_ADD_OP,                ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 1E */ ACPI_OP ("Concatenate",        ARGP_CONCAT_OP,            ARGI_CONCAT_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 1F */ ACPI_OP ("Subtract",           ARGP_SUBTRACT_OP,          ARGI_SUBTRACT_OP,           ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 20 */ ACPI_OP ("Increment",          ARGP_INCREMENT_OP,         ARGI_INCREMENT_OP,          ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+/* 21 */ ACPI_OP ("Decrement",          ARGP_DECREMENT_OP,         ARGI_DECREMENT_OP,          ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+/* 22 */ ACPI_OP ("Multiply",           ARGP_MULTIPLY_OP,          ARGI_MULTIPLY_OP,           ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 23 */ ACPI_OP ("Divide",             ARGP_DIVIDE_OP,            ARGI_DIVIDE_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_2T_1R,   AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
+/* 24 */ ACPI_OP ("ShiftLeft",          ARGP_SHIFT_LEFT_OP,        ARGI_SHIFT_LEFT_OP,         ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 25 */ ACPI_OP ("ShiftRight",         ARGP_SHIFT_RIGHT_OP,       ARGI_SHIFT_RIGHT_OP,        ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 26 */ ACPI_OP ("And",                ARGP_BIT_AND_OP,           ARGI_BIT_AND_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 27 */ ACPI_OP ("NAnd",               ARGP_BIT_NAND_OP,          ARGI_BIT_NAND_OP,           ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 28 */ ACPI_OP ("Or",                 ARGP_BIT_OR_OP,            ARGI_BIT_OR_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 29 */ ACPI_OP ("NOr",                ARGP_BIT_NOR_OP,           ARGI_BIT_NOR_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 2A */ ACPI_OP ("XOr",                ARGP_BIT_XOR_OP,           ARGI_BIT_XOR_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+/* 2B */ ACPI_OP ("Not",                ARGP_BIT_NOT_OP,           ARGI_BIT_NOT_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 2C */ ACPI_OP ("FindSetLeftBit",     ARGP_FIND_SET_LEFT_BIT_OP, ARGI_FIND_SET_LEFT_BIT_OP,  ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 2D */ ACPI_OP ("FindSetRightBit",    ARGP_FIND_SET_RIGHT_BIT_OP,ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 2E */ ACPI_OP ("DerefOf",            ARGP_DEREF_OF_OP,          ARGI_DEREF_OF_OP,           ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R),
+/* 2F */ ACPI_OP ("Notify",             ARGP_NOTIFY_OP,            ARGI_NOTIFY_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_0R,   AML_FLAGS_EXEC_2A_0T_0R),
+/* 30 */ ACPI_OP ("SizeOf",             ARGP_SIZE_OF_OP,           ARGI_SIZE_OF_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+/* 31 */ ACPI_OP ("Index",              ARGP_INDEX_OP,             ARGI_INDEX_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R),
+/* 32 */ ACPI_OP ("Match",              ARGP_MATCH_OP,             ARGI_MATCH_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_6A_0T_1R,   AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
+/* 33 */ ACPI_OP ("CreateDWordField",   ARGP_CREATE_DWORD_FIELD_OP,ARGI_CREATE_DWORD_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,      AML_CLASS_CREATE,          AML_TYPE_CREATE_FIELD,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | AML_DEFER | AML_CREATE),
+/* 34 */ ACPI_OP ("CreateWordField",    ARGP_CREATE_WORD_FIELD_OP, ARGI_CREATE_WORD_FIELD_OP,  ACPI_TYPE_BUFFER_FIELD,      AML_CLASS_CREATE,          AML_TYPE_CREATE_FIELD,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | AML_DEFER | AML_CREATE),
+/* 35 */ ACPI_OP ("CreateByteField",    ARGP_CREATE_BYTE_FIELD_OP, ARGI_CREATE_BYTE_FIELD_OP,  ACPI_TYPE_BUFFER_FIELD,      AML_CLASS_CREATE,          AML_TYPE_CREATE_FIELD,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | AML_DEFER | AML_CREATE),
+/* 36 */ ACPI_OP ("CreateBitField",     ARGP_CREATE_BIT_FIELD_OP,  ARGI_CREATE_BIT_FIELD_OP,   ACPI_TYPE_BUFFER_FIELD,      AML_CLASS_CREATE,          AML_TYPE_CREATE_FIELD,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | AML_DEFER | AML_CREATE),
+/* 37 */ ACPI_OP ("ObjectType",         ARGP_TYPE_OP,              ARGI_TYPE_OP,               ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+/* 38 */ ACPI_OP ("LAnd",               ARGP_LAND_OP,              ARGI_LAND_OP,               ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
+/* 39 */ ACPI_OP ("LOr",                ARGP_LOR_OP,               ARGI_LOR_OP,                ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
+/* 3A */ ACPI_OP ("LNot",               ARGP_LNOT_OP,              ARGI_LNOT_OP,               ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_1R,   AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+/* 3B */ ACPI_OP ("LEqual",             ARGP_LEQUAL_OP,            ARGI_LEQUAL_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+/* 3C */ ACPI_OP ("LGreater",           ARGP_LGREATER_OP,          ARGI_LGREATER_OP,           ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+/* 3D */ ACPI_OP ("LLess",              ARGP_LLESS_OP,             ARGI_LLESS_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+/* 3E */ ACPI_OP ("If",                 ARGP_IF_OP,                ARGI_IF_OP,                 ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         AML_HAS_ARGS),
+/* 3F */ ACPI_OP ("Else",               ARGP_ELSE_OP,              ARGI_ELSE_OP,               ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         AML_HAS_ARGS),
+/* 40 */ ACPI_OP ("While",              ARGP_WHILE_OP,             ARGI_WHILE_OP,              ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         AML_HAS_ARGS),
+/* 41 */ ACPI_OP ("Noop",               ARGP_NOOP_OP,              ARGI_NOOP_OP,               ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         0),
+/* 42 */ ACPI_OP ("Return",             ARGP_RETURN_OP,            ARGI_RETURN_OP,             ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         AML_HAS_ARGS),
+/* 43 */ ACPI_OP ("Break",              ARGP_BREAK_OP,             ARGI_BREAK_OP,              ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         0),
+/* 44 */ ACPI_OP ("BreakPoint",         ARGP_BREAK_POINT_OP,       ARGI_BREAK_POINT_OP,        ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         0),
+/* 45 */ ACPI_OP ("Ones",               ARGP_ONES_OP,              ARGI_ONES_OP,               ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_CONSTANT,        AML_CONSTANT),
+
+/* Prefixed opcodes (Two-byte opcodes with a prefix op) */
+
+/* 46 */ ACPI_OP ("Mutex",              ARGP_MUTEX_OP,             ARGI_MUTEX_OP,              ACPI_TYPE_MUTEX,             AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_SIMPLE,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 47 */ ACPI_OP ("Event",              ARGP_EVENT_OP,             ARGI_EVENT_OP,              ACPI_TYPE_EVENT,             AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_SIMPLE,    AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED ),
+/* 48 */ ACPI_OP ("CondRefOf",          ARGP_COND_REF_OF_OP,       ARGI_COND_REF_OF_OP,        ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R),
+/* 49 */ ACPI_OP ("CreateField",        ARGP_CREATE_FIELD_OP,      ARGI_CREATE_FIELD_OP,       ACPI_TYPE_BUFFER_FIELD,      AML_CLASS_CREATE,          AML_TYPE_CREATE_FIELD,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | AML_DEFER | AML_FIELD | AML_CREATE),
+/* 4A */ ACPI_OP ("Load",               ARGP_LOAD_OP,              ARGI_LOAD_OP,               ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_0R,   AML_FLAGS_EXEC_1A_1T_0R),
+/* 4B */ ACPI_OP ("Stall",              ARGP_STALL_OP,             ARGI_STALL_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_0R,   AML_FLAGS_EXEC_1A_0T_0R),
+/* 4C */ ACPI_OP ("Sleep",              ARGP_SLEEP_OP,             ARGI_SLEEP_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_0R,   AML_FLAGS_EXEC_1A_0T_0R),
+/* 4D */ ACPI_OP ("Acquire",            ARGP_ACQUIRE_OP,           ARGI_ACQUIRE_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R),
+/* 4E */ ACPI_OP ("Signal",             ARGP_SIGNAL_OP,            ARGI_SIGNAL_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_0R,   AML_FLAGS_EXEC_1A_0T_0R),
+/* 4F */ ACPI_OP ("Wait",               ARGP_WAIT_OP,              ARGI_WAIT_OP,               ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_0T_1R,   AML_FLAGS_EXEC_2A_0T_1R),
+/* 50 */ ACPI_OP ("Reset",              ARGP_RESET_OP,             ARGI_RESET_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_0R,   AML_FLAGS_EXEC_1A_0T_0R),
+/* 51 */ ACPI_OP ("Release",            ARGP_RELEASE_OP,           ARGI_RELEASE_OP,            ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_0R,   AML_FLAGS_EXEC_1A_0T_0R),
+/* 52 */ ACPI_OP ("FromBCD",            ARGP_FROM_BCD_OP,          ARGI_FROM_BCD_OP,           ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 53 */ ACPI_OP ("ToBCD",              ARGP_TO_BCD_OP,            ARGI_TO_BCD_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 54 */ ACPI_OP ("Unload",             ARGP_UNLOAD_OP,            ARGI_UNLOAD_OP,             ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_0T_0R,   AML_FLAGS_EXEC_1A_0T_0R),
+/* 55 */ ACPI_OP ("Revision",           ARGP_REVISION_OP,          ARGI_REVISION_OP,           ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_CONSTANT,        0),
+/* 56 */ ACPI_OP ("Debug",              ARGP_DEBUG_OP,             ARGI_DEBUG_OP,              ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_CONSTANT,        0),
+/* 57 */ ACPI_OP ("Fatal",              ARGP_FATAL_OP,             ARGI_FATAL_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_3A_0T_0R,   AML_FLAGS_EXEC_3A_0T_0R),
+/* 58 */ ACPI_OP ("OperationRegion",    ARGP_REGION_OP,            ARGI_REGION_OP,             ACPI_TYPE_REGION,            AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_COMPLEX,   AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED | AML_DEFER),
+/* 59 */ ACPI_OP ("Field",              ARGP_FIELD_OP,             ARGI_FIELD_OP,              ACPI_TYPE_ANY,               AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_FIELD,     AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
+/* 5A */ ACPI_OP ("Device",             ARGP_DEVICE_OP,            ARGI_DEVICE_OP,             ACPI_TYPE_DEVICE,            AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_NO_OBJ,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 5B */ ACPI_OP ("Processor",          ARGP_PROCESSOR_OP,         ARGI_PROCESSOR_OP,          ACPI_TYPE_PROCESSOR,         AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_SIMPLE,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 5C */ ACPI_OP ("PowerResource",      ARGP_POWER_RES_OP,         ARGI_POWER_RES_OP,          ACPI_TYPE_POWER,             AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_SIMPLE,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 5D */ ACPI_OP ("ThermalZone",        ARGP_THERMAL_ZONE_OP,      ARGI_THERMAL_ZONE_OP,       ACPI_TYPE_THERMAL,           AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_NO_OBJ,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+/* 5E */ ACPI_OP ("IndexField",         ARGP_INDEX_FIELD_OP,       ARGI_INDEX_FIELD_OP,        ACPI_TYPE_ANY,               AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_FIELD,     AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
+/* 5F */ ACPI_OP ("BankField",          ARGP_BANK_FIELD_OP,        ARGI_BANK_FIELD_OP,         ACPI_TYPE_LOCAL_BANK_FIELD,  AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_FIELD,     AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD | AML_DEFER),
+
+/* Internal opcodes that map to invalid AML opcodes */
+
+/* 60 */ ACPI_OP ("LNotEqual",          ARGP_LNOTEQUAL_OP,         ARGI_LNOTEQUAL_OP,          ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           AML_HAS_ARGS | AML_CONSTANT),
+/* 61 */ ACPI_OP ("LLessEqual",         ARGP_LLESSEQUAL_OP,        ARGI_LLESSEQUAL_OP,         ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           AML_HAS_ARGS | AML_CONSTANT),
+/* 62 */ ACPI_OP ("LGreaterEqual",      ARGP_LGREATEREQUAL_OP,     ARGI_LGREATEREQUAL_OP,      ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           AML_HAS_ARGS | AML_CONSTANT),
+/* 63 */ ACPI_OP ("-NamePath-",         ARGP_NAMEPATH_OP,          ARGI_NAMEPATH_OP,           ACPI_TYPE_LOCAL_REFERENCE,   AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         AML_NSOBJECT | AML_NSNODE ),
+/* 64 */ ACPI_OP ("-MethodCall-",       ARGP_METHODCALL_OP,        ARGI_METHODCALL_OP,         ACPI_TYPE_METHOD,            AML_CLASS_METHOD_CALL,     AML_TYPE_METHOD_CALL,     AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
+/* 65 */ ACPI_OP ("-ByteList-",         ARGP_BYTELIST_OP,          ARGI_BYTELIST_OP,           ACPI_TYPE_ANY,               AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         0),
+/* 66 */ ACPI_OP ("-ReservedField-",    ARGP_RESERVEDFIELD_OP,     ARGI_RESERVEDFIELD_OP,      ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           0),
+/* 67 */ ACPI_OP ("-NamedField-",       ARGP_NAMEDFIELD_OP,        ARGI_NAMEDFIELD_OP,         ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED ),
+/* 68 */ ACPI_OP ("-AccessField-",      ARGP_ACCESSFIELD_OP,       ARGI_ACCESSFIELD_OP,        ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           0),
+/* 69 */ ACPI_OP ("-StaticString",      ARGP_STATICSTRING_OP,      ARGI_STATICSTRING_OP,       ACPI_TYPE_ANY,               AML_CLASS_INTERNAL,        AML_TYPE_BOGUS,           0),
+/* 6A */ ACPI_OP ("-Return Value-",     ARG_NONE,                  ARG_NONE,                   ACPI_TYPE_ANY,               AML_CLASS_RETURN_VALUE,    AML_TYPE_RETURN,          AML_HAS_ARGS | AML_HAS_RETVAL),
+/* 6B */ ACPI_OP ("-UNKNOWN_OP-",       ARG_NONE,                  ARG_NONE,                   ACPI_TYPE_INVALID,           AML_CLASS_UNKNOWN,         AML_TYPE_BOGUS,           AML_HAS_ARGS),
+/* 6C */ ACPI_OP ("-ASCII_ONLY-",       ARG_NONE,                  ARG_NONE,                   ACPI_TYPE_ANY,               AML_CLASS_ASCII,           AML_TYPE_BOGUS,           AML_HAS_ARGS),
+/* 6D */ ACPI_OP ("-PREFIX_ONLY-",      ARG_NONE,                  ARG_NONE,                   ACPI_TYPE_ANY,               AML_CLASS_PREFIX,          AML_TYPE_BOGUS,           AML_HAS_ARGS),
+
+/* ACPI 2.0 opcodes */
+
+/* 6E */ ACPI_OP ("QwordConst",         ARGP_QWORD_OP,             ARGI_QWORD_OP,              ACPI_TYPE_INTEGER,           AML_CLASS_ARGUMENT,        AML_TYPE_LITERAL,         AML_CONSTANT),
+/* 6F */ ACPI_OP ("Package", /* Var */  ARGP_VAR_PACKAGE_OP,       ARGI_VAR_PACKAGE_OP,        ACPI_TYPE_PACKAGE,           AML_CLASS_CREATE,          AML_TYPE_CREATE_OBJECT,   AML_HAS_ARGS | AML_DEFER),
+/* 70 */ ACPI_OP ("ConcatenateResTemplate", ARGP_CONCAT_RES_OP,    ARGI_CONCAT_RES_OP,         ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 71 */ ACPI_OP ("Mod",                ARGP_MOD_OP,               ARGI_MOD_OP,                ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 72 */ ACPI_OP ("CreateQWordField",   ARGP_CREATE_QWORD_FIELD_OP,ARGI_CREATE_QWORD_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,      AML_CLASS_CREATE,          AML_TYPE_CREATE_FIELD,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE | AML_DEFER | AML_CREATE),
+/* 73 */ ACPI_OP ("ToBuffer",           ARGP_TO_BUFFER_OP,         ARGI_TO_BUFFER_OP,          ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 74 */ ACPI_OP ("ToDecimalString",    ARGP_TO_DEC_STR_OP,        ARGI_TO_DEC_STR_OP,         ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 75 */ ACPI_OP ("ToHexString",        ARGP_TO_HEX_STR_OP,        ARGI_TO_HEX_STR_OP,         ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 76 */ ACPI_OP ("ToInteger",          ARGP_TO_INTEGER_OP,        ARGI_TO_INTEGER_OP,         ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+/* 77 */ ACPI_OP ("ToString",           ARGP_TO_STRING_OP,         ARGI_TO_STRING_OP,          ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_2A_1T_1R,   AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+/* 78 */ ACPI_OP ("CopyObject",         ARGP_COPY_OP,              ARGI_COPY_OP,               ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_1A_1T_1R,   AML_FLAGS_EXEC_1A_1T_1R),
+/* 79 */ ACPI_OP ("Mid",                ARGP_MID_OP,               ARGI_MID_OP,                ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_3A_1T_1R,   AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
+/* 7A */ ACPI_OP ("Continue",           ARGP_CONTINUE_OP,          ARGI_CONTINUE_OP,           ACPI_TYPE_ANY,               AML_CLASS_CONTROL,         AML_TYPE_CONTROL,         0),
+/* 7B */ ACPI_OP ("LoadTable",          ARGP_LOAD_TABLE_OP,        ARGI_LOAD_TABLE_OP,         ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_6A_0T_1R,   AML_FLAGS_EXEC_6A_0T_1R),
+/* 7C */ ACPI_OP ("DataTableRegion",    ARGP_DATA_REGION_OP,       ARGI_DATA_REGION_OP,        ACPI_TYPE_REGION,            AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_COMPLEX,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED | AML_DEFER),
+/* 7D */ ACPI_OP ("[EvalSubTree]",      ARGP_SCOPE_OP,             ARGI_SCOPE_OP,              ACPI_TYPE_ANY,               AML_CLASS_NAMED_OBJECT,    AML_TYPE_NAMED_NO_OBJ,    AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE),
+
+/* ACPI 3.0 opcodes */
+
+/* 7E */ ACPI_OP ("Timer",              ARGP_TIMER_OP,             ARGI_TIMER_OP,              ACPI_TYPE_ANY,               AML_CLASS_EXECUTE,         AML_TYPE_EXEC_0A_0T_1R,   AML_FLAGS_EXEC_0A_0T_1R)
+
+/*! [End] no source code translation !*/
+};
+
+/*
+ * This table is directly indexed by the opcodes, and returns an
+ * index into the table above
+ */
+static const UINT8 AcpiGbl_ShortOpIndex[256] =
+{
+/*              0     1     2     3     4     5     6     7  */
+/*              8     9     A     B     C     D     E     F  */
+/* 0x00 */    0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,
+/* 0x08 */    0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,
+/* 0x10 */    0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK,
+/* 0x18 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x20 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x28 */    _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,
+/* 0x30 */    0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,
+/* 0x38 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x40 */    _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x48 */    _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x50 */    _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,
+/* 0x58 */    _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,
+/* 0x60 */    0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,
+/* 0x68 */    0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,
+/* 0x70 */    0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,
+/* 0x78 */    0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,
+/* 0x80 */    0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,
+/* 0x88 */    0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,
+/* 0x90 */    0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,
+/* 0x98 */    0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,
+/* 0xA0 */    0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,
+/* 0xA8 */    0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xB0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xB8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xC0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xC8 */    _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,
+/* 0xD0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xD8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xE0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xE8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xF0 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0xF8 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,
+};
+
+/*
+ * This table is indexed by the second opcode of the extended opcode
+ * pair.  It returns an index into the opcode table (AcpiGbl_AmlOpInfo)
+ */
+static const UINT8 AcpiGbl_LongOpIndex[NUM_EXTENDED_OPCODE] =
+{
+/*              0     1     2     3     4     5     6     7  */
+/*              8     9     A     B     C     D     E     F  */
+/* 0x00 */    _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x08 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x10 */    _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,
+/* 0x18 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,
+/* 0x20 */    0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
+/* 0x28 */    0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x30 */    0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,
+/* 0x38 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x40 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x48 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x50 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x58 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x60 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x68 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x70 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x78 */    _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,
+/* 0x80 */    0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+/* 0x88 */    0x7C,
+};
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetOpcodeInfo
+ *
+ * PARAMETERS:  Opcode              - The AML opcode
+ *
+ * RETURN:      A pointer to the info about the opcode.
+ *
+ * DESCRIPTION: Find AML opcode description based on the opcode.
+ *              NOTE: This procedure must ALWAYS return a valid pointer!
+ *
+ ******************************************************************************/
+
+const ACPI_OPCODE_INFO *
+AcpiPsGetOpcodeInfo (
+    UINT16                  Opcode)
+{
+    ACPI_FUNCTION_NAME (PsGetOpcodeInfo);
+
+
+    /*
+     * Detect normal 8-bit opcode or extended 16-bit opcode
+     */
+    if (!(Opcode & 0xFF00))
+    {
+        /* Simple (8-bit) opcode: 0-255, can't index beyond table  */
+
+        return (&AcpiGbl_AmlOpInfo [AcpiGbl_ShortOpIndex [(UINT8) Opcode]]);
+    }
+
+    if (((Opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&
+        (((UINT8) Opcode) <= MAX_EXTENDED_OPCODE))
+    {
+        /* Valid extended (16-bit) opcode */
+
+        return (&AcpiGbl_AmlOpInfo [AcpiGbl_LongOpIndex [(UINT8) Opcode]]);
+    }
+
+    /* Unknown AML opcode */
+
+    ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+        "Unknown AML opcode [%4.4X]\n", Opcode));
+
+    return (&AcpiGbl_AmlOpInfo [_UNK]);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetOpcodeName
+ *
+ * PARAMETERS:  Opcode              - The AML opcode
+ *
+ * RETURN:      A pointer to the name of the opcode (ASCII String)
+ *              Note: Never returns NULL.
+ *
+ * DESCRIPTION: Translate an opcode into a human-readable string
+ *
+ ******************************************************************************/
+
+char *
+AcpiPsGetOpcodeName (
+    UINT16                  Opcode)
+{
+#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
+
+    const ACPI_OPCODE_INFO  *Op;
+
+
+    Op = AcpiPsGetOpcodeInfo (Opcode);
+
+    /* Always guaranteed to return a valid pointer */
+
+    return (Op->Name);
+
+#else
+    return ("OpcodeName unavailable");
+
+#endif
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetArgumentCount
+ *
+ * PARAMETERS:  OpType              - Type associated with the AML opcode
+ *
+ * RETURN:      Argument count
+ *
+ * DESCRIPTION: Obtain the number of expected arguments for an AML opcode
+ *
+ ******************************************************************************/
+
+UINT8
+AcpiPsGetArgumentCount (
+    UINT32                  OpType)
+{
+
+    if (OpType <= AML_TYPE_EXEC_6A_0T_1R)
+    {
+        return (AcpiGbl_ArgumentCount[OpType]);
+    }
+
+    return (0);
+}
diff --git a/sys/contrib/dev/acpica/parser/psparse.c b/sys/contrib/dev/acpica/parser/psparse.c
new file mode 100644
index 0000000..d9d6a29
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psparse.c
@@ -0,0 +1,793 @@
+/******************************************************************************
+ *
+ * Module Name: psparse - Parser top level AML parse routines
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, 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.
+ *
+ *****************************************************************************/
+
+
+/*
+ * Parse the AML and build an operation tree as most interpreters,
+ * like Perl, do.  Parsing is done by hand rather than with a YACC
+ * generated parser to tightly constrain stack and dynamic memory
+ * usage.  At the same time, parsing is kept flexible and the code
+ * fairly compact by parsing based on a list of AML opcode
+ * templates in AmlOpInfo[]
+ */
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "amlcode.h"
+#include "acnamesp.h"
+#include "acinterp.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psparse")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetOpcodeSize
+ *
+ * PARAMETERS:  Opcode          - An AML opcode
+ *
+ * RETURN:      Size of the opcode, in bytes (1 or 2)
+ *
+ * DESCRIPTION: Get the size of the current opcode.
+ *
+ ******************************************************************************/
+
+UINT32
+AcpiPsGetOpcodeSize (
+    UINT32                  Opcode)
+{
+
+    /* Extended (2-byte) opcode if > 255 */
+
+    if (Opcode > 0x00FF)
+    {
+        return (2);
+    }
+
+    /* Otherwise, just a single byte opcode */
+
+    return (1);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsPeekOpcode
+ *
+ * PARAMETERS:  ParserState         - A parser state object
+ *
+ * RETURN:      Next AML opcode
+ *
+ * DESCRIPTION: Get next AML opcode (without incrementing AML pointer)
+ *
+ ******************************************************************************/
+
+UINT16
+AcpiPsPeekOpcode (
+    ACPI_PARSE_STATE        *ParserState)
+{
+    UINT8                   *Aml;
+    UINT16                  Opcode;
+
+
+    Aml = ParserState->Aml;
+    Opcode = (UINT16) ACPI_GET8 (Aml);
+
+    if (Opcode == AML_EXTENDED_OP_PREFIX)
+    {
+        /* Extended opcode, get the second opcode byte */
+
+        Aml++;
+        Opcode = (UINT16) ((Opcode << 8) | ACPI_GET8 (Aml));
+    }
+
+    return (Opcode);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsCompleteThisOp
+ *
+ * PARAMETERS:  WalkState       - Current State
+ *              Op              - Op to complete
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform any cleanup at the completion of an Op.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsCompleteThisOp (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *Prev;
+    ACPI_PARSE_OBJECT       *Next;
+    const ACPI_OPCODE_INFO  *ParentInfo;
+    ACPI_PARSE_OBJECT       *ReplacementOp = NULL;
+    ACPI_STATUS             Status = AE_OK;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsCompleteThisOp, Op);
+
+
+    /* Check for null Op, can happen if AML code is corrupt */
+
+    if (!Op)
+    {
+        return_ACPI_STATUS (AE_OK);  /* OK for now */
+    }
+
+    /* Delete this op and the subtree below it if asked to */
+
+    if (((WalkState->ParseFlags & ACPI_PARSE_TREE_MASK) != ACPI_PARSE_DELETE_TREE) ||
+         (WalkState->OpInfo->Class == AML_CLASS_ARGUMENT))
+    {
+        return_ACPI_STATUS (AE_OK);
+    }
+
+    /* Make sure that we only delete this subtree */
+
+    if (Op->Common.Parent)
+    {
+        Prev = Op->Common.Parent->Common.Value.Arg;
+        if (!Prev)
+        {
+            /* Nothing more to do */
+
+            goto Cleanup;
+        }
+
+        /*
+         * Check if we need to replace the operator and its subtree
+         * with a return value op (placeholder op)
+         */
+        ParentInfo = AcpiPsGetOpcodeInfo (Op->Common.Parent->Common.AmlOpcode);
+
+        switch (ParentInfo->Class)
+        {
+        case AML_CLASS_CONTROL:
+            break;
+
+        case AML_CLASS_CREATE:
+
+            /*
+             * These opcodes contain TermArg operands.  The current
+             * op must be replaced by a placeholder return op
+             */
+            ReplacementOp = AcpiPsAllocOp (AML_INT_RETURN_VALUE_OP);
+            if (!ReplacementOp)
+            {
+                Status = AE_NO_MEMORY;
+            }
+            break;
+
+        case AML_CLASS_NAMED_OBJECT:
+
+            /*
+             * These opcodes contain TermArg operands.  The current
+             * op must be replaced by a placeholder return op
+             */
+            if ((Op->Common.Parent->Common.AmlOpcode == AML_REGION_OP)       ||
+                (Op->Common.Parent->Common.AmlOpcode == AML_DATA_REGION_OP)  ||
+                (Op->Common.Parent->Common.AmlOpcode == AML_BUFFER_OP)       ||
+                (Op->Common.Parent->Common.AmlOpcode == AML_PACKAGE_OP)      ||
+                (Op->Common.Parent->Common.AmlOpcode == AML_BANK_FIELD_OP)   ||
+                (Op->Common.Parent->Common.AmlOpcode == AML_VAR_PACKAGE_OP))
+            {
+                ReplacementOp = AcpiPsAllocOp (AML_INT_RETURN_VALUE_OP);
+                if (!ReplacementOp)
+                {
+                    Status = AE_NO_MEMORY;
+                }
+            }
+            else if ((Op->Common.Parent->Common.AmlOpcode == AML_NAME_OP) &&
+                     (WalkState->PassNumber <= ACPI_IMODE_LOAD_PASS2))
+            {
+                if ((Op->Common.AmlOpcode == AML_BUFFER_OP) ||
+                    (Op->Common.AmlOpcode == AML_PACKAGE_OP) ||
+                    (Op->Common.AmlOpcode == AML_VAR_PACKAGE_OP))
+                {
+                    ReplacementOp = AcpiPsAllocOp (Op->Common.AmlOpcode);
+                    if (!ReplacementOp)
+                    {
+                        Status = AE_NO_MEMORY;
+                    }
+                    else
+                    {
+                        ReplacementOp->Named.Data = Op->Named.Data;
+                        ReplacementOp->Named.Length = Op->Named.Length;
+                    }
+                }
+            }
+            break;
+
+        default:
+
+            ReplacementOp = AcpiPsAllocOp (AML_INT_RETURN_VALUE_OP);
+            if (!ReplacementOp)
+            {
+                Status = AE_NO_MEMORY;
+            }
+        }
+
+        /* We must unlink this op from the parent tree */
+
+        if (Prev == Op)
+        {
+            /* This op is the first in the list */
+
+            if (ReplacementOp)
+            {
+                ReplacementOp->Common.Parent        = Op->Common.Parent;
+                ReplacementOp->Common.Value.Arg     = NULL;
+                ReplacementOp->Common.Node          = Op->Common.Node;
+                Op->Common.Parent->Common.Value.Arg = ReplacementOp;
+                ReplacementOp->Common.Next          = Op->Common.Next;
+            }
+            else
+            {
+                Op->Common.Parent->Common.Value.Arg = Op->Common.Next;
+            }
+        }
+
+        /* Search the parent list */
+
+        else while (Prev)
+        {
+            /* Traverse all siblings in the parent's argument list */
+
+            Next = Prev->Common.Next;
+            if (Next == Op)
+            {
+                if (ReplacementOp)
+                {
+                    ReplacementOp->Common.Parent    = Op->Common.Parent;
+                    ReplacementOp->Common.Value.Arg = NULL;
+                    ReplacementOp->Common.Node      = Op->Common.Node;
+                    Prev->Common.Next               = ReplacementOp;
+                    ReplacementOp->Common.Next      = Op->Common.Next;
+                    Next = NULL;
+                }
+                else
+                {
+                    Prev->Common.Next = Op->Common.Next;
+                    Next = NULL;
+                }
+            }
+            Prev = Next;
+        }
+    }
+
+
+Cleanup:
+
+    /* Now we can actually delete the subtree rooted at Op */
+
+    AcpiPsDeleteParseTree (Op);
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsNextParseState
+ *
+ * PARAMETERS:  WalkState           - Current state
+ *              Op                  - Current parse op
+ *              CallbackStatus      - Status from previous operation
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Update the parser state based upon the return exception from
+ *              the parser callback.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsNextParseState (
+    ACPI_WALK_STATE         *WalkState,
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_STATUS             CallbackStatus)
+{
+    ACPI_PARSE_STATE        *ParserState = &WalkState->ParserState;
+    ACPI_STATUS             Status = AE_CTRL_PENDING;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsNextParseState, Op);
+
+
+    switch (CallbackStatus)
+    {
+    case AE_CTRL_TERMINATE:
+        /*
+         * A control method was terminated via a RETURN statement.
+         * The walk of this method is complete.
+         */
+        ParserState->Aml = ParserState->AmlEnd;
+        Status = AE_CTRL_TERMINATE;
+        break;
+
+
+    case AE_CTRL_BREAK:
+
+        ParserState->Aml = WalkState->AmlLastWhile;
+        WalkState->ControlState->Common.Value = FALSE;
+        Status = AE_CTRL_BREAK;
+        break;
+
+
+    case AE_CTRL_CONTINUE:
+
+        ParserState->Aml = WalkState->AmlLastWhile;
+        Status = AE_CTRL_CONTINUE;
+        break;
+
+
+    case AE_CTRL_PENDING:
+
+        ParserState->Aml = WalkState->AmlLastWhile;
+        break;
+
+#if 0
+    case AE_CTRL_SKIP:
+
+        ParserState->Aml = ParserState->Scope->ParseScope.PkgEnd;
+        Status = AE_OK;
+        break;
+#endif
+
+    case AE_CTRL_TRUE:
+        /*
+         * Predicate of an IF was true, and we are at the matching ELSE.
+         * Just close out this package
+         */
+        ParserState->Aml = AcpiPsGetNextPackageEnd (ParserState);
+        Status = AE_CTRL_PENDING;
+        break;
+
+
+    case AE_CTRL_FALSE:
+        /*
+         * Either an IF/WHILE Predicate was false or we encountered a BREAK
+         * opcode.  In both cases, we do not execute the rest of the
+         * package;  We simply close out the parent (finishing the walk of
+         * this branch of the tree) and continue execution at the parent
+         * level.
+         */
+        ParserState->Aml = ParserState->Scope->ParseScope.PkgEnd;
+
+        /* In the case of a BREAK, just force a predicate (if any) to FALSE */
+
+        WalkState->ControlState->Common.Value = FALSE;
+        Status = AE_CTRL_END;
+        break;
+
+
+    case AE_CTRL_TRANSFER:
+
+        /* A method call (invocation) -- transfer control */
+
+        Status = AE_CTRL_TRANSFER;
+        WalkState->PrevOp = Op;
+        WalkState->MethodCallOp = Op;
+        WalkState->MethodCallNode = (Op->Common.Value.Arg)->Common.Node;
+
+        /* Will return value (if any) be used by the caller? */
+
+        WalkState->ReturnUsed = AcpiDsIsResultUsed (Op, WalkState);
+        break;
+
+
+    default:
+
+        Status = CallbackStatus;
+        if ((CallbackStatus & AE_CODE_MASK) == AE_CODE_CONTROL)
+        {
+            Status = AE_OK;
+        }
+        break;
+    }
+
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsParseAml
+ *
+ * PARAMETERS:  WalkState       - Current state
+ *
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Parse raw AML and return a tree of ops
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsParseAml (
+    ACPI_WALK_STATE         *WalkState)
+{
+    ACPI_STATUS             Status;
+    ACPI_THREAD_STATE       *Thread;
+    ACPI_THREAD_STATE       *PrevWalkList = AcpiGbl_CurrentWalkList;
+    ACPI_WALK_STATE         *PreviousWalkState;
+
+
+    ACPI_FUNCTION_TRACE (PsParseAml);
+
+    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+        "Entered with WalkState=%p Aml=%p size=%X\n",
+        WalkState, WalkState->ParserState.Aml,
+        WalkState->ParserState.AmlSize));
+
+    if (!WalkState->ParserState.Aml)
+    {
+        return_ACPI_STATUS (AE_NULL_OBJECT);
+    }
+
+    /* Create and initialize a new thread state */
+
+    Thread = AcpiUtCreateThreadState ();
+    if (!Thread)
+    {
+        if (WalkState->MethodDesc)
+        {
+            /* Executing a control method - additional cleanup */
+
+            AcpiDsTerminateControlMethod (WalkState->MethodDesc, WalkState);
+        }
+
+        AcpiDsDeleteWalkState (WalkState);
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    WalkState->Thread = Thread;
+
+    /*
+     * If executing a method, the starting SyncLevel is this method's
+     * SyncLevel
+     */
+    if (WalkState->MethodDesc)
+    {
+        WalkState->Thread->CurrentSyncLevel = WalkState->MethodDesc->Method.SyncLevel;
+    }
+
+    AcpiDsPushWalkState (WalkState, Thread);
+
+    /*
+     * This global allows the AML debugger to get a handle to the currently
+     * executing control method.
+     */
+    AcpiGbl_CurrentWalkList = Thread;
+
+    /*
+     * Execute the walk loop as long as there is a valid Walk State.  This
+     * handles nested control method invocations without recursion.
+     */
+    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "State=%p\n", WalkState));
+
+    Status = AE_OK;
+    while (WalkState)
+    {
+        if (ACPI_SUCCESS (Status))
+        {
+            /*
+             * The ParseLoop executes AML until the method terminates
+             * or calls another method.
+             */
+            Status = AcpiPsParseLoop (WalkState);
+        }
+
+        ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+            "Completed one call to walk loop, %s State=%p\n",
+            AcpiFormatException (Status), WalkState));
+
+        if (Status == AE_CTRL_TRANSFER)
+        {
+            /*
+             * A method call was detected.
+             * Transfer control to the called control method
+             */
+            Status = AcpiDsCallControlMethod (Thread, WalkState, NULL);
+            if (ACPI_FAILURE (Status))
+            {
+                Status = AcpiDsMethodError (Status, WalkState);
+            }
+
+            /*
+             * If the transfer to the new method method call worked, a new walk
+             * state was created -- get it
+             */
+            WalkState = AcpiDsGetCurrentWalkState (Thread);
+            continue;
+        }
+        else if (Status == AE_CTRL_TERMINATE)
+        {
+            Status = AE_OK;
+        }
+        else if ((Status != AE_OK) && (WalkState->MethodDesc))
+        {
+            /* Either the method parse or actual execution failed */
+
+            ACPI_ERROR_METHOD ("Method parse/execution failed",
+                WalkState->MethodNode, NULL, Status);
+
+            /* Check for possible multi-thread reentrancy problem */
+
+            if ((Status == AE_ALREADY_EXISTS) &&
+                (!WalkState->MethodDesc->Method.Mutex))
+            {
+                ACPI_INFO ((AE_INFO,
+                    "Marking method %4.4s as Serialized because of AE_ALREADY_EXISTS error",
+                    WalkState->MethodNode->Name.Ascii));
+
+                /*
+                 * Method tried to create an object twice. The probable cause is
+                 * that the method cannot handle reentrancy.
+                 *
+                 * The method is marked NotSerialized, but it tried to create
+                 * a named object, causing the second thread entrance to fail.
+                 * Workaround this problem by marking the method permanently
+                 * as Serialized.
+                 */
+                WalkState->MethodDesc->Method.MethodFlags |= AML_METHOD_SERIALIZED;
+                WalkState->MethodDesc->Method.SyncLevel = 0;
+            }
+        }
+
+        /* We are done with this walk, move on to the parent if any */
+
+        WalkState = AcpiDsPopWalkState (Thread);
+
+        /* Reset the current scope to the beginning of scope stack */
+
+        AcpiDsScopeStackClear (WalkState);
+
+        /*
+         * If we just returned from the execution of a control method or if we
+         * encountered an error during the method parse phase, there's lots of
+         * cleanup to do
+         */
+        if (((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) == ACPI_PARSE_EXECUTE) ||
+            (ACPI_FAILURE (Status)))
+        {
+            AcpiDsTerminateControlMethod (WalkState->MethodDesc, WalkState);
+        }
+
+        /* Delete this walk state and all linked control states */
+
+        AcpiPsCleanupScope (&WalkState->ParserState);
+        PreviousWalkState = WalkState;
+
+        ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+            "ReturnValue=%p, ImplicitValue=%p State=%p\n",
+            WalkState->ReturnDesc, WalkState->ImplicitReturnObj, WalkState));
+
+        /* Check if we have restarted a preempted walk */
+
+        WalkState = AcpiDsGetCurrentWalkState (Thread);
+        if (WalkState)
+        {
+            if (ACPI_SUCCESS (Status))
+            {
+                /*
+                 * There is another walk state, restart it.
+                 * If the method return value is not used by the parent,
+                 * The object is deleted
+                 */
+                if (!PreviousWalkState->ReturnDesc)
+                {
+                    /*
+                     * In slack mode execution, if there is no return value
+                     * we should implicitly return zero (0) as a default value.
+                     */
+                    if (AcpiGbl_EnableInterpreterSlack &&
+                        !PreviousWalkState->ImplicitReturnObj)
+                    {
+                        PreviousWalkState->ImplicitReturnObj =
+                            AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
+                        if (!PreviousWalkState->ImplicitReturnObj)
+                        {
+                            return_ACPI_STATUS (AE_NO_MEMORY);
+                        }
+
+                        PreviousWalkState->ImplicitReturnObj->Integer.Value = 0;
+                    }
+
+                    /* Restart the calling control method */
+
+                    Status = AcpiDsRestartControlMethod (WalkState,
+                                PreviousWalkState->ImplicitReturnObj);
+                }
+                else
+                {
+                    /*
+                     * We have a valid return value, delete any implicit
+                     * return value.
+                     */
+                    AcpiDsClearImplicitReturn (PreviousWalkState);
+
+                    Status = AcpiDsRestartControlMethod (WalkState,
+                                PreviousWalkState->ReturnDesc);
+                }
+                if (ACPI_SUCCESS (Status))
+                {
+                    WalkState->WalkType |= ACPI_WALK_METHOD_RESTART;
+                }
+            }
+            else
+            {
+                /* On error, delete any return object or implicit return */
+
+                AcpiUtRemoveReference (PreviousWalkState->ReturnDesc);
+                AcpiDsClearImplicitReturn (PreviousWalkState);
+            }
+        }
+
+        /*
+         * Just completed a 1st-level method, save the final internal return
+         * value (if any)
+         */
+        else if (PreviousWalkState->CallerReturnDesc)
+        {
+            if (PreviousWalkState->ImplicitReturnObj)
+            {
+                *(PreviousWalkState->CallerReturnDesc) =
+                    PreviousWalkState->ImplicitReturnObj;
+            }
+            else
+            {
+                 /* NULL if no return value */
+
+                *(PreviousWalkState->CallerReturnDesc) =
+                    PreviousWalkState->ReturnDesc;
+            }
+        }
+        else
+        {
+            if (PreviousWalkState->ReturnDesc)
+            {
+                /* Caller doesn't want it, must delete it */
+
+                AcpiUtRemoveReference (PreviousWalkState->ReturnDesc);
+            }
+            if (PreviousWalkState->ImplicitReturnObj)
+            {
+                /* Caller doesn't want it, must delete it */
+
+                AcpiUtRemoveReference (PreviousWalkState->ImplicitReturnObj);
+            }
+        }
+
+        AcpiDsDeleteWalkState (PreviousWalkState);
+    }
+
+    /* Normal exit */
+
+    AcpiExReleaseAllMutexes (Thread);
+    AcpiUtDeleteGenericState (ACPI_CAST_PTR (ACPI_GENERIC_STATE, Thread));
+    AcpiGbl_CurrentWalkList = PrevWalkList;
+    return_ACPI_STATUS (Status);
+}
+
+
diff --git a/sys/contrib/dev/acpica/parser/psscope.c b/sys/contrib/dev/acpica/parser/psscope.c
new file mode 100644
index 0000000..979dbb1
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psscope.c
@@ -0,0 +1,374 @@
+/******************************************************************************
+ *
+ * Module Name: psscope - Parser scope stack management routines
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psscope")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetParentScope
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      Pointer to an Op object
+ *
+ * DESCRIPTION: Get parent of current op being parsed
+ *
+ ******************************************************************************/
+
+ACPI_PARSE_OBJECT *
+AcpiPsGetParentScope (
+    ACPI_PARSE_STATE        *ParserState)
+{
+
+    return (ParserState->Scope->ParseScope.Op);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsHasCompletedScope
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      Boolean, TRUE = scope completed.
+ *
+ * DESCRIPTION: Is parsing of current argument complete?  Determined by
+ *              1) AML pointer is at or beyond the end of the scope
+ *              2) The scope argument count has reached zero.
+ *
+ ******************************************************************************/
+
+BOOLEAN
+AcpiPsHasCompletedScope (
+    ACPI_PARSE_STATE        *ParserState)
+{
+
+    return ((BOOLEAN)
+            ((ParserState->Aml >= ParserState->Scope->ParseScope.ArgEnd ||
+             !ParserState->Scope->ParseScope.ArgCount)));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsInitScope
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *              Root                - the Root Node of this new scope
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Allocate and init a new scope object
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsInitScope (
+    ACPI_PARSE_STATE        *ParserState,
+    ACPI_PARSE_OBJECT       *RootOp)
+{
+    ACPI_GENERIC_STATE      *Scope;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsInitScope, RootOp);
+
+
+    Scope = AcpiUtCreateGenericState ();
+    if (!Scope)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    Scope->Common.DescriptorType = ACPI_DESC_TYPE_STATE_RPSCOPE;
+    Scope->ParseScope.Op = RootOp;
+    Scope->ParseScope.ArgCount = ACPI_VAR_ARGS;
+    Scope->ParseScope.ArgEnd = ParserState->AmlEnd;
+    Scope->ParseScope.PkgEnd = ParserState->AmlEnd;
+
+    ParserState->Scope = Scope;
+    ParserState->StartOp = RootOp;
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsPushScope
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *              Op                  - Current op to be pushed
+ *              RemainingArgs       - List of args remaining
+ *              ArgCount            - Fixed or variable number of args
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Push current op to begin parsing its argument
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsPushScope (
+    ACPI_PARSE_STATE        *ParserState,
+    ACPI_PARSE_OBJECT       *Op,
+    UINT32                  RemainingArgs,
+    UINT32                  ArgCount)
+{
+    ACPI_GENERIC_STATE      *Scope;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsPushScope, Op);
+
+
+    Scope = AcpiUtCreateGenericState ();
+    if (!Scope)
+    {
+        return_ACPI_STATUS (AE_NO_MEMORY);
+    }
+
+    Scope->Common.DescriptorType = ACPI_DESC_TYPE_STATE_PSCOPE;
+    Scope->ParseScope.Op = Op;
+    Scope->ParseScope.ArgList = RemainingArgs;
+    Scope->ParseScope.ArgCount = ArgCount;
+    Scope->ParseScope.PkgEnd = ParserState->PkgEnd;
+
+    /* Push onto scope stack */
+
+    AcpiUtPushGenericState (&ParserState->Scope, Scope);
+
+    if (ArgCount == ACPI_VAR_ARGS)
+    {
+        /* Multiple arguments */
+
+        Scope->ParseScope.ArgEnd = ParserState->PkgEnd;
+    }
+    else
+    {
+        /* Single argument */
+
+        Scope->ParseScope.ArgEnd = ACPI_TO_POINTER (ACPI_MAX_PTR);
+    }
+
+    return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsPopScope
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *              Op                  - Where the popped op is returned
+ *              ArgList             - Where the popped "next argument" is
+ *                                    returned
+ *              ArgCount            - Count of objects in ArgList
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Return to parsing a previous op
+ *
+ ******************************************************************************/
+
+void
+AcpiPsPopScope (
+    ACPI_PARSE_STATE        *ParserState,
+    ACPI_PARSE_OBJECT       **Op,
+    UINT32                  *ArgList,
+    UINT32                  *ArgCount)
+{
+    ACPI_GENERIC_STATE      *Scope = ParserState->Scope;
+
+
+    ACPI_FUNCTION_TRACE (PsPopScope);
+
+
+    /* Only pop the scope if there is in fact a next scope */
+
+    if (Scope->Common.Next)
+    {
+        Scope = AcpiUtPopGenericState (&ParserState->Scope);
+
+        /* Return to parsing previous op */
+
+        *Op                 = Scope->ParseScope.Op;
+        *ArgList            = Scope->ParseScope.ArgList;
+        *ArgCount           = Scope->ParseScope.ArgCount;
+        ParserState->PkgEnd = Scope->ParseScope.PkgEnd;
+
+        /* All done with this scope state structure */
+
+        AcpiUtDeleteGenericState (Scope);
+    }
+    else
+    {
+        /* Empty parse stack, prepare to fetch next opcode */
+
+        *Op       = NULL;
+        *ArgList  = 0;
+        *ArgCount = 0;
+    }
+
+    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+        "Popped Op %p Args %X\n", *Op, *ArgCount));
+    return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsCleanupScope
+ *
+ * PARAMETERS:  ParserState         - Current parser state object
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Destroy available list, remaining stack levels, and return
+ *              root scope
+ *
+ ******************************************************************************/
+
+void
+AcpiPsCleanupScope (
+    ACPI_PARSE_STATE        *ParserState)
+{
+    ACPI_GENERIC_STATE      *Scope;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsCleanupScope, ParserState);
+
+
+    if (!ParserState)
+    {
+        return_VOID;
+    }
+
+    /* Delete anything on the scope stack */
+
+    while (ParserState->Scope)
+    {
+        Scope = AcpiUtPopGenericState (&ParserState->Scope);
+        AcpiUtDeleteGenericState (Scope);
+    }
+
+    return_VOID;
+}
+
diff --git a/sys/contrib/dev/acpica/parser/pstree.c b/sys/contrib/dev/acpica/parser/pstree.c
new file mode 100644
index 0000000..20ac405
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/pstree.c
@@ -0,0 +1,427 @@
+/******************************************************************************
+ *
+ * Module Name: pstree - Parser op tree manipulation/traversal/search
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, 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 __PSTREE_C__
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("pstree")
+
+/* Local prototypes */
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+ACPI_PARSE_OBJECT *
+AcpiPsGetChild (
+    ACPI_PARSE_OBJECT       *op);
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetArg
+ *
+ * PARAMETERS:  Op              - Get an argument for this op
+ *              Argn            - Nth argument to get
+ *
+ * RETURN:      The argument (as an Op object). NULL if argument does not exist
+ *
+ * DESCRIPTION: Get the specified op's argument.
+ *
+ ******************************************************************************/
+
+ACPI_PARSE_OBJECT *
+AcpiPsGetArg (
+    ACPI_PARSE_OBJECT       *Op,
+    UINT32                  Argn)
+{
+    ACPI_PARSE_OBJECT       *Arg = NULL;
+    const ACPI_OPCODE_INFO  *OpInfo;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    /* Get the info structure for this opcode */
+
+    OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+    if (OpInfo->Class == AML_CLASS_UNKNOWN)
+    {
+        /* Invalid opcode or ASCII character */
+
+        return (NULL);
+    }
+
+    /* Check if this opcode requires argument sub-objects */
+
+    if (!(OpInfo->Flags & AML_HAS_ARGS))
+    {
+        /* Has no linked argument objects */
+
+        return (NULL);
+    }
+
+    /* Get the requested argument object */
+
+    Arg = Op->Common.Value.Arg;
+    while (Arg && Argn)
+    {
+        Argn--;
+        Arg = Arg->Common.Next;
+    }
+
+    return (Arg);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsAppendArg
+ *
+ * PARAMETERS:  Op              - Append an argument to this Op.
+ *              Arg             - Argument Op to append
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Append an argument to an op's argument list (a NULL arg is OK)
+ *
+ ******************************************************************************/
+
+void
+AcpiPsAppendArg (
+    ACPI_PARSE_OBJECT       *Op,
+    ACPI_PARSE_OBJECT       *Arg)
+{
+    ACPI_PARSE_OBJECT       *PrevArg;
+    const ACPI_OPCODE_INFO  *OpInfo;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    if (!Op)
+    {
+        return;
+    }
+
+    /* Get the info structure for this opcode */
+
+    OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
+    if (OpInfo->Class == AML_CLASS_UNKNOWN)
+    {
+        /* Invalid opcode */
+
+        ACPI_ERROR ((AE_INFO, "Invalid AML Opcode: 0x%2.2X",
+            Op->Common.AmlOpcode));
+        return;
+    }
+
+    /* Check if this opcode requires argument sub-objects */
+
+    if (!(OpInfo->Flags & AML_HAS_ARGS))
+    {
+        /* Has no linked argument objects */
+
+        return;
+    }
+
+    /* Append the argument to the linked argument list */
+
+    if (Op->Common.Value.Arg)
+    {
+        /* Append to existing argument list */
+
+        PrevArg = Op->Common.Value.Arg;
+        while (PrevArg->Common.Next)
+        {
+            PrevArg = PrevArg->Common.Next;
+        }
+        PrevArg->Common.Next = Arg;
+    }
+    else
+    {
+        /* No argument list, this will be the first argument */
+
+        Op->Common.Value.Arg = Arg;
+    }
+
+    /* Set the parent in this arg and any args linked after it */
+
+    while (Arg)
+    {
+        Arg->Common.Parent = Op;
+        Arg = Arg->Common.Next;
+
+        Op->Common.ArgListLength++;
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetDepthNext
+ *
+ * PARAMETERS:  Origin          - Root of subtree to search
+ *              Op              - Last (previous) Op that was found
+ *
+ * RETURN:      Next Op found in the search.
+ *
+ * DESCRIPTION: Get next op in tree (walking the tree in depth-first order)
+ *              Return NULL when reaching "origin" or when walking up from root
+ *
+ ******************************************************************************/
+
+ACPI_PARSE_OBJECT *
+AcpiPsGetDepthNext (
+    ACPI_PARSE_OBJECT       *Origin,
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *Next = NULL;
+    ACPI_PARSE_OBJECT       *Parent;
+    ACPI_PARSE_OBJECT       *Arg;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    if (!Op)
+    {
+        return (NULL);
+    }
+
+    /* Look for an argument or child */
+
+    Next = AcpiPsGetArg (Op, 0);
+    if (Next)
+    {
+        return (Next);
+    }
+
+    /* Look for a sibling */
+
+    Next = Op->Common.Next;
+    if (Next)
+    {
+        return (Next);
+    }
+
+    /* Look for a sibling of parent */
+
+    Parent = Op->Common.Parent;
+
+    while (Parent)
+    {
+        Arg = AcpiPsGetArg (Parent, 0);
+        while (Arg && (Arg != Origin) && (Arg != Op))
+        {
+            Arg = Arg->Common.Next;
+        }
+
+        if (Arg == Origin)
+        {
+            /* Reached parent of origin, end search */
+
+            return (NULL);
+        }
+
+        if (Parent->Common.Next)
+        {
+            /* Found sibling of parent */
+
+            return (Parent->Common.Next);
+        }
+
+        Op = Parent;
+        Parent = Parent->Common.Parent;
+    }
+
+    return (Next);
+}
+
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsGetChild
+ *
+ * PARAMETERS:  Op              - Get the child of this Op
+ *
+ * RETURN:      Child Op, Null if none is found.
+ *
+ * DESCRIPTION: Get op's children or NULL if none
+ *
+ ******************************************************************************/
+
+ACPI_PARSE_OBJECT *
+AcpiPsGetChild (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_PARSE_OBJECT       *Child = NULL;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    switch (Op->Common.AmlOpcode)
+    {
+    case AML_SCOPE_OP:
+    case AML_ELSE_OP:
+    case AML_DEVICE_OP:
+    case AML_THERMAL_ZONE_OP:
+    case AML_INT_METHODCALL_OP:
+
+        Child = AcpiPsGetArg (Op, 0);
+        break;
+
+
+    case AML_BUFFER_OP:
+    case AML_PACKAGE_OP:
+    case AML_METHOD_OP:
+    case AML_IF_OP:
+    case AML_WHILE_OP:
+    case AML_FIELD_OP:
+
+        Child = AcpiPsGetArg (Op, 1);
+        break;
+
+
+    case AML_POWER_RES_OP:
+    case AML_INDEX_FIELD_OP:
+
+        Child = AcpiPsGetArg (Op, 2);
+        break;
+
+
+    case AML_PROCESSOR_OP:
+    case AML_BANK_FIELD_OP:
+
+        Child = AcpiPsGetArg (Op, 3);
+        break;
+
+
+    default:
+        /* All others have no children */
+        break;
+    }
+
+    return (Child);
+}
+#endif
+
+
diff --git a/sys/contrib/dev/acpica/parser/psutils.c b/sys/contrib/dev/acpica/parser/psutils.c
new file mode 100644
index 0000000..42f2b01
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psutils.c
@@ -0,0 +1,362 @@
+/******************************************************************************
+ *
+ * Module Name: psutils - Parser miscellaneous utilities (Parser only)
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "amlcode.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psutils")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsCreateScopeOp
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      A new Scope object, null on failure
+ *
+ * DESCRIPTION: Create a Scope and associated namepath op with the root name
+ *
+ ******************************************************************************/
+
+ACPI_PARSE_OBJECT *
+AcpiPsCreateScopeOp (
+    void)
+{
+    ACPI_PARSE_OBJECT       *ScopeOp;
+
+
+    ScopeOp = AcpiPsAllocOp (AML_SCOPE_OP);
+    if (!ScopeOp)
+    {
+        return (NULL);
+    }
+
+    ScopeOp->Named.Name = ACPI_ROOT_NAME;
+    return (ScopeOp);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsInitOp
+ *
+ * PARAMETERS:  Op              - A newly allocated Op object
+ *              Opcode          - Opcode to store in the Op
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Initialize a parse (Op) object
+ *
+ ******************************************************************************/
+
+void
+AcpiPsInitOp (
+    ACPI_PARSE_OBJECT       *Op,
+    UINT16                  Opcode)
+{
+    ACPI_FUNCTION_ENTRY ();
+
+
+    Op->Common.DescriptorType = ACPI_DESC_TYPE_PARSER;
+    Op->Common.AmlOpcode = Opcode;
+
+    ACPI_DISASM_ONLY_MEMBERS (ACPI_STRNCPY (Op->Common.AmlOpName,
+            (AcpiPsGetOpcodeInfo (Opcode))->Name,
+                sizeof (Op->Common.AmlOpName)));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsAllocOp
+ *
+ * PARAMETERS:  Opcode          - Opcode that will be stored in the new Op
+ *
+ * RETURN:      Pointer to the new Op, null on failure
+ *
+ * DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on
+ *              opcode.  A cache of opcodes is available for the pure
+ *              GENERIC_OP, since this is by far the most commonly used.
+ *
+ ******************************************************************************/
+
+ACPI_PARSE_OBJECT*
+AcpiPsAllocOp (
+    UINT16                  Opcode)
+{
+    ACPI_PARSE_OBJECT       *Op;
+    const ACPI_OPCODE_INFO  *OpInfo;
+    UINT8                   Flags = ACPI_PARSEOP_GENERIC;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    OpInfo = AcpiPsGetOpcodeInfo (Opcode);
+
+    /* Determine type of ParseOp required */
+
+    if (OpInfo->Flags & AML_DEFER)
+    {
+        Flags = ACPI_PARSEOP_DEFERRED;
+    }
+    else if (OpInfo->Flags & AML_NAMED)
+    {
+        Flags = ACPI_PARSEOP_NAMED;
+    }
+    else if (Opcode == AML_INT_BYTELIST_OP)
+    {
+        Flags = ACPI_PARSEOP_BYTELIST;
+    }
+
+    /* Allocate the minimum required size object */
+
+    if (Flags == ACPI_PARSEOP_GENERIC)
+    {
+        /* The generic op (default) is by far the most common (16 to 1) */
+
+        Op = AcpiOsAcquireObject (AcpiGbl_PsNodeCache);
+    }
+    else
+    {
+        /* Extended parseop */
+
+        Op = AcpiOsAcquireObject (AcpiGbl_PsNodeExtCache);
+    }
+
+    /* Initialize the Op */
+
+    if (Op)
+    {
+        AcpiPsInitOp (Op, Opcode);
+        Op->Common.Flags = Flags;
+    }
+
+    return (Op);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsFreeOp
+ *
+ * PARAMETERS:  Op              - Op to be freed
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Free an Op object.  Either put it on the GENERIC_OP cache list
+ *              or actually free it.
+ *
+ ******************************************************************************/
+
+void
+AcpiPsFreeOp (
+    ACPI_PARSE_OBJECT       *Op)
+{
+    ACPI_FUNCTION_NAME (PsFreeOp);
+
+
+    if (Op->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP)
+    {
+        ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n", Op));
+    }
+
+    if (Op->Common.Flags & ACPI_PARSEOP_GENERIC)
+    {
+        (void) AcpiOsReleaseObject (AcpiGbl_PsNodeCache, Op);
+    }
+    else
+    {
+        (void) AcpiOsReleaseObject (AcpiGbl_PsNodeExtCache, Op);
+    }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    Utility functions
+ *
+ * DESCRIPTION: Low level character and object functions
+ *
+ ******************************************************************************/
+
+
+/*
+ * Is "c" a namestring lead character?
+ */
+BOOLEAN
+AcpiPsIsLeadingChar (
+    UINT32                  c)
+{
+    return ((BOOLEAN) (c == '_' || (c >= 'A' && c <= 'Z')));
+}
+
+
+/*
+ * Is "c" a namestring prefix character?
+ */
+BOOLEAN
+AcpiPsIsPrefixChar (
+    UINT32                  c)
+{
+    return ((BOOLEAN) (c == '\\' || c == '^'));
+}
+
+
+/*
+ * Get op's name (4-byte name segment) or 0 if unnamed
+ */
+UINT32
+AcpiPsGetName (
+    ACPI_PARSE_OBJECT       *Op)
+{
+
+    /* The "generic" object has no name associated with it */
+
+    if (Op->Common.Flags & ACPI_PARSEOP_GENERIC)
+    {
+        return (0);
+    }
+
+    /* Only the "Extended" parse objects have a name */
+
+    return (Op->Named.Name);
+}
+
+
+/*
+ * Set op's name
+ */
+void
+AcpiPsSetName (
+    ACPI_PARSE_OBJECT       *Op,
+    UINT32                  name)
+{
+
+    /* The "generic" object has no name associated with it */
+
+    if (Op->Common.Flags & ACPI_PARSEOP_GENERIC)
+    {
+        return;
+    }
+
+    Op->Named.Name = name;
+}
+
diff --git a/sys/contrib/dev/acpica/parser/pswalk.c b/sys/contrib/dev/acpica/parser/pswalk.c
new file mode 100644
index 0000000..d8d5f5e
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/pswalk.c
@@ -0,0 +1,193 @@
+/******************************************************************************
+ *
+ * Module Name: pswalk - Parser routines to walk parsed op tree(s)
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
+ * All rights reserved.
+ *
+ * 2. License
+ *
+ * 2.1. This is your license from Intel Corp. under its intellectual property
+ * rights.  You may have additional license terms from the party that provided
+ * you this software, covering your right to use that party's intellectual
+ * property rights.
+ *
+ * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
+ * copy of the source code appearing in this file ("Covered Code") an
+ * irrevocable, perpetual, worldwide license under Intel's copyrights in the
+ * base code distributed originally by Intel ("Original Intel Code") to copy,
+ * make derivatives, distribute, use and display any portion of the Covered
+ * Code in any form, with the right to sublicense such rights; and
+ *
+ * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
+ * license (with the right to sublicense), under only those claims of Intel
+ * patents that are infringed by the Original Intel Code, to make, use, sell,
+ * offer to sell, and import the Covered Code and derivative works thereof
+ * solely to the minimum extent necessary to exercise the above copyright
+ * license, and in no event shall the patent license extend to any additions
+ * to or modifications of the Original Intel Code.  No other license or right
+ * is granted directly or by implication, estoppel or otherwise;
+ *
+ * The above copyright and patent license is granted only if the following
+ * conditions are met:
+ *
+ * 3. Conditions
+ *
+ * 3.1. Redistribution of Source with Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification with rights to further distribute source must include
+ * the above Copyright Notice, the above License, this list of Conditions,
+ * and the following Disclaimer and Export Compliance provision.  In addition,
+ * Licensee must cause all Covered Code to which Licensee contributes to
+ * contain a file documenting the changes Licensee made to create that Covered
+ * Code and the date of any change.  Licensee must include in that file the
+ * documentation of any changes made by any predecessor Licensee.  Licensee
+ * must include a prominent statement that the modification is derived,
+ * directly or indirectly, from Original Intel Code.
+ *
+ * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
+ * Redistribution of source code of any substantial portion of the Covered
+ * Code or modification without rights to further distribute source must
+ * include the following Disclaimer and Export Compliance provision in the
+ * documentation and/or other materials provided with distribution.  In
+ * addition, Licensee may not authorize further sublicense of source of any
+ * portion of the Covered Code, and must include terms to the effect that the
+ * license from Licensee to its licensee is limited to the intellectual
+ * property embodied in the software Licensee provides to its licensee, and
+ * not to intellectual property embodied in modifications its licensee may
+ * make.
+ *
+ * 3.3. Redistribution of Executable. Redistribution in executable form of any
+ * substantial portion of the Covered Code or modification must reproduce the
+ * above Copyright Notice, and the following Disclaimer and Export Compliance
+ * provision in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3.4. Intel retains all right, title, and interest in and to the Original
+ * Intel Code.
+ *
+ * 3.5. Neither the name Intel nor any other trademark owned or controlled by
+ * Intel shall be used in advertising or otherwise to promote the sale, use or
+ * other dealings in products derived from or relating to the Covered Code
+ * without prior written authorization from Intel.
+ *
+ * 4. Disclaimer and Export Compliance
+ *
+ * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
+ * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
+ * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
+ * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
+ * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
+ * PARTICULAR PURPOSE.
+ *
+ * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
+ * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
+ * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
+ * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
+ * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
+ * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
+ * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
+ * LIMITED REMEDY.
+ *
+ * 4.3. Licensee shall not export, either directly or indirectly, any of this
+ * software or system incorporating such software without first obtaining any
+ * required license or other approval from the U. S. Department of Commerce or
+ * any other agency or department of the United States Government.  In the
+ * event Licensee exports any such software from the United States or
+ * re-exports any such software from a foreign destination, Licensee shall
+ * ensure that the distribution and export/re-export of the software is in
+ * compliance with all laws, regulations, orders, or other restrictions of the
+ * U.S. Export Administration Regulations. Licensee agrees that neither it nor
+ * any of its subsidiaries will export/re-export any technical data, process,
+ * software, or service, directly or indirectly, to any country for which the
+ * United States government or any agency thereof requires an export license,
+ * other governmental approval, or letter of assurance, without first obtaining
+ * such license, approval or letter.
+ *
+ *****************************************************************************/
+
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("pswalk")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsDeleteParseTree
+ *
+ * PARAMETERS:  SubtreeRoot         - Root of tree (or subtree) to delete
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete a portion of or an entire parse tree.
+ *
+ ******************************************************************************/
+
+void
+AcpiPsDeleteParseTree (
+    ACPI_PARSE_OBJECT       *SubtreeRoot)
+{
+    ACPI_PARSE_OBJECT       *Op = SubtreeRoot;
+    ACPI_PARSE_OBJECT       *Next = NULL;
+    ACPI_PARSE_OBJECT       *Parent = NULL;
+
+
+    ACPI_FUNCTION_TRACE_PTR (PsDeleteParseTree, SubtreeRoot);
+
+
+    /* Visit all nodes in the subtree */
+
+    while (Op)
+    {
+        /* Check if we are not ascending */
+
+        if (Op != Parent)
+        {
+            /* Look for an argument or child of the current op */
+
+            Next = AcpiPsGetArg (Op, 0);
+            if (Next)
+            {
+                /* Still going downward in tree (Op is not completed yet) */
+
+                Op = Next;
+                continue;
+            }
+        }
+
+        /* No more children, this Op is complete. */
+
+        Next = Op->Common.Next;
+        Parent = Op->Common.Parent;
+
+        AcpiPsFreeOp (Op);
+
+        /* If we are back to the starting point, the walk is complete. */
+
+        if (Op == SubtreeRoot)
+        {
+            return_VOID;
+        }
+        if (Next)
+        {
+            Op = Next;
+        }
+        else
+        {
+            Op = Parent;
+        }
+    }
+
+    return_VOID;
+}
diff --git a/sys/contrib/dev/acpica/parser/psxface.c b/sys/contrib/dev/acpica/parser/psxface.c
new file mode 100644
index 0000000..d63abb6
--- /dev/null
+++ b/sys/contrib/dev/acpica/parser/psxface.c
@@ -0,0 +1,507 @@
+/******************************************************************************
+ *
+ * Module Name: psxface - Parser external interfaces
+ *
+ *****************************************************************************/
+
+/******************************************************************************
+ *
+ * 1. Copyright Notice
+ *
+ * Some or all of this work - Copyright (c) 1999 - 2009, 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 __PSXFACE_C__
+
+#include "acpi.h"
+#include "accommon.h"
+#include "acparser.h"
+#include "acdispat.h"
+#include "acinterp.h"
+#include "amlcode.h"
+
+
+#define _COMPONENT          ACPI_PARSER
+        ACPI_MODULE_NAME    ("psxface")
+
+/* Local Prototypes */
+
+static void
+AcpiPsStartTrace (
+    ACPI_EVALUATE_INFO      *Info);
+
+static void
+AcpiPsStopTrace (
+    ACPI_EVALUATE_INFO      *Info);
+
+static void
+AcpiPsUpdateParameterList (
+    ACPI_EVALUATE_INFO      *Info,
+    UINT16                  Action);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiDebugTrace
+ *
+ * PARAMETERS:  MethodName      - Valid ACPI name string
+ *              DebugLevel      - Optional level mask. 0 to use default
+ *              DebugLayer      - Optional layer mask. 0 to use default
+ *              Flags           - bit 1: one shot(1) or persistent(0)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: External interface to enable debug tracing during control
+ *              method execution
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiDebugTrace (
+    char                    *Name,
+    UINT32                  DebugLevel,
+    UINT32                  DebugLayer,
+    UINT32                  Flags)
+{
+    ACPI_STATUS             Status;
+
+
+    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+    if (ACPI_FAILURE (Status))
+    {
+        return (Status);
+    }
+
+    /* TBDs: Validate name, allow full path or just nameseg */
+
+    AcpiGbl_TraceMethodName = *ACPI_CAST_PTR (UINT32, Name);
+    AcpiGbl_TraceFlags = Flags;
+
+    if (DebugLevel)
+    {
+        AcpiGbl_TraceDbgLevel = DebugLevel;
+    }
+    if (DebugLayer)
+    {
+        AcpiGbl_TraceDbgLayer = DebugLayer;
+    }
+
+    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+    return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsStartTrace
+ *
+ * PARAMETERS:  Info        - Method info struct
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Start control method execution trace
+ *
+ ******************************************************************************/
+
+static void
+AcpiPsStartTrace (
+    ACPI_EVALUATE_INFO      *Info)
+{
+    ACPI_STATUS             Status;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+    if (ACPI_FAILURE (Status))
+    {
+        return;
+    }
+
+    if ((!AcpiGbl_TraceMethodName) ||
+        (AcpiGbl_TraceMethodName != Info->ResolvedNode->Name.Integer))
+    {
+        goto Exit;
+    }
+
+    AcpiGbl_OriginalDbgLevel = AcpiDbgLevel;
+    AcpiGbl_OriginalDbgLayer = AcpiDbgLayer;
+
+    AcpiDbgLevel = 0x00FFFFFF;
+    AcpiDbgLayer = ACPI_UINT32_MAX;
+
+    if (AcpiGbl_TraceDbgLevel)
+    {
+        AcpiDbgLevel = AcpiGbl_TraceDbgLevel;
+    }
+    if (AcpiGbl_TraceDbgLayer)
+    {
+        AcpiDbgLayer = AcpiGbl_TraceDbgLayer;
+    }
+
+
+Exit:
+    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsStopTrace
+ *
+ * PARAMETERS:  Info        - Method info struct
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Stop control method execution trace
+ *
+ ******************************************************************************/
+
+static void
+AcpiPsStopTrace (
+    ACPI_EVALUATE_INFO      *Info)
+{
+    ACPI_STATUS             Status;
+
+
+    ACPI_FUNCTION_ENTRY ();
+
+
+    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+    if (ACPI_FAILURE (Status))
+    {
+        return;
+    }
+
+    if ((!AcpiGbl_TraceMethodName) ||
+        (AcpiGbl_TraceMethodName != Info->ResolvedNode->Name.Integer))
+    {
+        goto Exit;
+    }
+
+    /* Disable further tracing if type is one-shot */
+
+    if (AcpiGbl_TraceFlags & 1)
+    {
+        AcpiGbl_TraceMethodName = 0;
+        AcpiGbl_TraceDbgLevel = 0;
+        AcpiGbl_TraceDbgLayer = 0;
+    }
+
+    AcpiDbgLevel = AcpiGbl_OriginalDbgLevel;
+    AcpiDbgLayer = AcpiGbl_OriginalDbgLayer;
+
+Exit:
+    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsExecuteMethod
+ *
+ * PARAMETERS:  Info            - Method info block, contains:
+ *                  Node            - Method Node to execute
+ *                  ObjDesc         - Method object
+ *                  Parameters      - List of parameters to pass to the method,
+ *                                    terminated by NULL. Params itself may be
+ *                                    NULL if no parameters are being passed.
+ *                  ReturnObject    - Where to put method's return value (if
+ *                                    any). If NULL, no value is returned.
+ *                  ParameterType   - Type of Parameter list
+ *                  ReturnObject    - Where to put method's return value (if
+ *                                    any). If NULL, no value is returned.
+ *                  PassNumber      - Parse or execute pass
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute a control method
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiPsExecuteMethod (
+    ACPI_EVALUATE_INFO      *Info)
+{
+    ACPI_STATUS             Status;
+    ACPI_PARSE_OBJECT       *Op;
+    ACPI_WALK_STATE         *WalkState;
+
+
+    ACPI_FUNCTION_TRACE (PsExecuteMethod);
+
+
+    /* Validate the Info and method Node */
+
+    if (!Info || !Info->ResolvedNode)
+    {
+        return_ACPI_STATUS (AE_NULL_ENTRY);
+    }
+
+    /* Init for new method, wait on concurrency semaphore */
+
+    Status = AcpiDsBeginMethodExecution (Info->ResolvedNode, Info->ObjDesc, NULL);
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
+
+    /*
+     * The caller "owns" the parameters, so give each one an extra reference
+     */
+    AcpiPsUpdateParameterList (Info, REF_INCREMENT);
+
+    /* Begin tracing if requested */
+
+    AcpiPsStartTrace (Info);
+
+    /*
+     * Execute the method. Performs parse simultaneously
+     */
+    ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
+        "**** Begin Method Parse/Execute [%4.4s] **** Node=%p Obj=%p\n",
+        Info->ResolvedNode->Name.Ascii, Info->ResolvedNode, Info->ObjDesc));
+
+    /* Create and init a Root Node */
+
+    Op = AcpiPsCreateScopeOp ();
+    if (!Op)
+    {
+        Status = AE_NO_MEMORY;
+        goto Cleanup;
+    }
+
+    /* Create and initialize a new walk state */
+
+    Info->PassNumber = ACPI_IMODE_EXECUTE;
+    WalkState = AcpiDsCreateWalkState (
+                    Info->ObjDesc->Method.OwnerId, NULL, NULL, NULL);
+    if (!WalkState)
+    {
+        Status = AE_NO_MEMORY;
+        goto Cleanup;
+    }
+
+    Status = AcpiDsInitAmlWalk (WalkState, Op, Info->ResolvedNode,
+                Info->ObjDesc->Method.AmlStart,
+                Info->ObjDesc->Method.AmlLength, Info, Info->PassNumber);
+    if (ACPI_FAILURE (Status))
+    {
+        AcpiDsDeleteWalkState (WalkState);
+        goto Cleanup;
+    }
+
+    /* Invoke an internal method if necessary */
+
+    if (Info->ObjDesc->Method.MethodFlags & AML_METHOD_INTERNAL_ONLY)
+    {
+        Status = Info->ObjDesc->Method.Implementation (WalkState);
+        Info->ReturnObject = WalkState->ReturnDesc;
+
+        /* Cleanup states */
+
+        AcpiDsScopeStackClear (WalkState);
+        AcpiPsCleanupScope (&WalkState->ParserState);
+        AcpiDsTerminateControlMethod (WalkState->MethodDesc, WalkState);
+        AcpiDsDeleteWalkState (WalkState);
+        goto Cleanup;
+    }
+
+    /*
+     * Start method evaluation with an implicit return of zero. This is done
+     * for Windows compatibility.
+     */
+    if (AcpiGbl_EnableInterpreterSlack)
+    {
+        WalkState->ImplicitReturnObj =
+            AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER);
+        if (!WalkState->ImplicitReturnObj)
+        {
+            Status = AE_NO_MEMORY;
+            AcpiDsDeleteWalkState (WalkState);
+            goto Cleanup;
+        }
+
+        WalkState->ImplicitReturnObj->Integer.Value = 0;
+    }
+
+    /* Parse the AML */
+
+    Status = AcpiPsParseAml (WalkState);
+
+    /* WalkState was deleted by ParseAml */
+
+Cleanup:
+    AcpiPsDeleteParseTree (Op);
+
+    /* End optional tracing */
+
+    AcpiPsStopTrace (Info);
+
+    /* Take away the extra reference that we gave the parameters above */
+
+    AcpiPsUpdateParameterList (Info, REF_DECREMENT);
+
+    /* Exit now if error above */
+
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
+
+    /*
+     * If the method has returned an object, signal this to the caller with
+     * a control exception code
+     */
+    if (Info->ReturnObject)
+    {
+        ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n",
+            Info->ReturnObject));
+        ACPI_DUMP_STACK_ENTRY (Info->ReturnObject);
+
+        Status = AE_CTRL_RETURN_VALUE;
+    }
+
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiPsUpdateParameterList
+ *
+ * PARAMETERS:  Info            - See ACPI_EVALUATE_INFO
+ *                                (Used: ParameterType and Parameters)
+ *              Action          - Add or Remove reference
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Update reference count on all method parameter objects
+ *
+ ******************************************************************************/
+
+static void
+AcpiPsUpdateParameterList (
+    ACPI_EVALUATE_INFO      *Info,
+    UINT16                  Action)
+{
+    UINT32                  i;
+
+
+    if (Info->Parameters)
+    {
+        /* Update reference count for each parameter */
+
+        for (i = 0; Info->Parameters[i]; i++)
+        {
+            /* Ignore errors, just do them all */
+
+            (void) AcpiUtUpdateObjectReference (Info->Parameters[i], Action);
+        }
+    }
+}
+
+