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diff --git a/sys/contrib/dev/acpica/components/parser/pstree.c b/sys/contrib/dev/acpica/components/parser/pstree.c
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+/******************************************************************************
+ *
+ * Module Name: pstree - Parser op tree manipulation/traversal/search
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+
+#define __PSTREE_C__
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <contrib/dev/acpica/include/acparser.h>
+#include <contrib/dev/acpica/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 ();
+
+/*
+ if (Op->Common.AmlOpcode == AML_INT_CONNECTION_OP)
+ {
+ return (Op->Common.Value.Arg);
+ }
+*/
+ /* 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
+
+
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