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diff --git a/sys/contrib/dev/acpica/components/namespace/nsutils.c b/sys/contrib/dev/acpica/components/namespace/nsutils.c
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+++ b/sys/contrib/dev/acpica/components/namespace/nsutils.c
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+/******************************************************************************
+ *
+ * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing
+ * parents and siblings and Scope manipulation
+ *
+ *****************************************************************************/
+
+/*
+ * 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 __NSUTILS_C__
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <contrib/dev/acpica/include/acnamesp.h>
+#include <contrib/dev/acpica/include/amlcode.h>
+
+#define _COMPONENT ACPI_NAMESPACE
+ ACPI_MODULE_NAME ("nsutils")
+
+/* Local prototypes */
+
+static BOOLEAN
+AcpiNsValidPathSeparator (
+ char Sep);
+
+#ifdef ACPI_OBSOLETE_FUNCTIONS
+ACPI_NAME
+AcpiNsFindParentName (
+ ACPI_NAMESPACE_NODE *NodeToSearch);
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsPrintNodePathname
+ *
+ * PARAMETERS: Node - Object
+ * Message - Prefix message
+ *
+ * DESCRIPTION: Print an object's full namespace pathname
+ * Manages allocation/freeing of a pathname buffer
+ *
+ ******************************************************************************/
+
+void
+AcpiNsPrintNodePathname (
+ ACPI_NAMESPACE_NODE *Node,
+ const char *Message)
+{
+ ACPI_BUFFER Buffer;
+ ACPI_STATUS Status;
+
+
+ if (!Node)
+ {
+ AcpiOsPrintf ("[NULL NAME]");
+ return;
+ }
+
+ /* Convert handle to full pathname and print it (with supplied message) */
+
+ Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
+
+ Status = AcpiNsHandleToPathname (Node, &Buffer);
+ if (ACPI_SUCCESS (Status))
+ {
+ if (Message)
+ {
+ AcpiOsPrintf ("%s ", Message);
+ }
+
+ AcpiOsPrintf ("[%s] (Node %p)", (char *) Buffer.Pointer, Node);
+ ACPI_FREE (Buffer.Pointer);
+ }
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsValidRootPrefix
+ *
+ * PARAMETERS: Prefix - Character to be checked
+ *
+ * RETURN: TRUE if a valid prefix
+ *
+ * DESCRIPTION: Check if a character is a valid ACPI Root prefix
+ *
+ ******************************************************************************/
+
+BOOLEAN
+AcpiNsValidRootPrefix (
+ char Prefix)
+{
+
+ return ((BOOLEAN) (Prefix == '\\'));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsValidPathSeparator
+ *
+ * PARAMETERS: Sep - Character to be checked
+ *
+ * RETURN: TRUE if a valid path separator
+ *
+ * DESCRIPTION: Check if a character is a valid ACPI path separator
+ *
+ ******************************************************************************/
+
+static BOOLEAN
+AcpiNsValidPathSeparator (
+ char Sep)
+{
+
+ return ((BOOLEAN) (Sep == '.'));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsGetType
+ *
+ * PARAMETERS: Node - Parent Node to be examined
+ *
+ * RETURN: Type field from Node whose handle is passed
+ *
+ * DESCRIPTION: Return the type of a Namespace node
+ *
+ ******************************************************************************/
+
+ACPI_OBJECT_TYPE
+AcpiNsGetType (
+ ACPI_NAMESPACE_NODE *Node)
+{
+ ACPI_FUNCTION_TRACE (NsGetType);
+
+
+ if (!Node)
+ {
+ ACPI_WARNING ((AE_INFO, "Null Node parameter"));
+ return_UINT32 (ACPI_TYPE_ANY);
+ }
+
+ return_UINT32 ((ACPI_OBJECT_TYPE) Node->Type);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsLocal
+ *
+ * PARAMETERS: Type - A namespace object type
+ *
+ * RETURN: LOCAL if names must be found locally in objects of the
+ * passed type, 0 if enclosing scopes should be searched
+ *
+ * DESCRIPTION: Returns scope rule for the given object type.
+ *
+ ******************************************************************************/
+
+UINT32
+AcpiNsLocal (
+ ACPI_OBJECT_TYPE Type)
+{
+ ACPI_FUNCTION_TRACE (NsLocal);
+
+
+ if (!AcpiUtValidObjectType (Type))
+ {
+ /* Type code out of range */
+
+ ACPI_WARNING ((AE_INFO, "Invalid Object Type 0x%X", Type));
+ return_UINT32 (ACPI_NS_NORMAL);
+ }
+
+ return_UINT32 ((UINT32) AcpiGbl_NsProperties[Type] & ACPI_NS_LOCAL);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsGetInternalNameLength
+ *
+ * PARAMETERS: Info - Info struct initialized with the
+ * external name pointer.
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Calculate the length of the internal (AML) namestring
+ * corresponding to the external (ASL) namestring.
+ *
+ ******************************************************************************/
+
+void
+AcpiNsGetInternalNameLength (
+ ACPI_NAMESTRING_INFO *Info)
+{
+ const char *NextExternalChar;
+ UINT32 i;
+
+
+ ACPI_FUNCTION_ENTRY ();
+
+
+ NextExternalChar = Info->ExternalName;
+ Info->NumCarats = 0;
+ Info->NumSegments = 0;
+ Info->FullyQualified = FALSE;
+
+ /*
+ * For the internal name, the required length is 4 bytes per segment, plus
+ * 1 each for RootPrefix, MultiNamePrefixOp, segment count, trailing null
+ * (which is not really needed, but no there's harm in putting it there)
+ *
+ * strlen() + 1 covers the first NameSeg, which has no path separator
+ */
+ if (AcpiNsValidRootPrefix (*NextExternalChar))
+ {
+ Info->FullyQualified = TRUE;
+ NextExternalChar++;
+
+ /* Skip redundant RootPrefix, like \\_SB.PCI0.SBRG.EC0 */
+
+ while (AcpiNsValidRootPrefix (*NextExternalChar))
+ {
+ NextExternalChar++;
+ }
+ }
+ else
+ {
+ /* Handle Carat prefixes */
+
+ while (*NextExternalChar == '^')
+ {
+ Info->NumCarats++;
+ NextExternalChar++;
+ }
+ }
+
+ /*
+ * Determine the number of ACPI name "segments" by counting the number of
+ * path separators within the string. Start with one segment since the
+ * segment count is [(# separators) + 1], and zero separators is ok.
+ */
+ if (*NextExternalChar)
+ {
+ Info->NumSegments = 1;
+ for (i = 0; NextExternalChar[i]; i++)
+ {
+ if (AcpiNsValidPathSeparator (NextExternalChar[i]))
+ {
+ Info->NumSegments++;
+ }
+ }
+ }
+
+ Info->Length = (ACPI_NAME_SIZE * Info->NumSegments) +
+ 4 + Info->NumCarats;
+
+ Info->NextExternalChar = NextExternalChar;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsBuildInternalName
+ *
+ * PARAMETERS: Info - Info struct fully initialized
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Construct the internal (AML) namestring
+ * corresponding to the external (ASL) namestring.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsBuildInternalName (
+ ACPI_NAMESTRING_INFO *Info)
+{
+ UINT32 NumSegments = Info->NumSegments;
+ char *InternalName = Info->InternalName;
+ const char *ExternalName = Info->NextExternalChar;
+ char *Result = NULL;
+ UINT32 i;
+
+
+ ACPI_FUNCTION_TRACE (NsBuildInternalName);
+
+
+ /* Setup the correct prefixes, counts, and pointers */
+
+ if (Info->FullyQualified)
+ {
+ InternalName[0] = '\\';
+
+ if (NumSegments <= 1)
+ {
+ Result = &InternalName[1];
+ }
+ else if (NumSegments == 2)
+ {
+ InternalName[1] = AML_DUAL_NAME_PREFIX;
+ Result = &InternalName[2];
+ }
+ else
+ {
+ InternalName[1] = AML_MULTI_NAME_PREFIX_OP;
+ InternalName[2] = (char) NumSegments;
+ Result = &InternalName[3];
+ }
+ }
+ else
+ {
+ /*
+ * Not fully qualified.
+ * Handle Carats first, then append the name segments
+ */
+ i = 0;
+ if (Info->NumCarats)
+ {
+ for (i = 0; i < Info->NumCarats; i++)
+ {
+ InternalName[i] = '^';
+ }
+ }
+
+ if (NumSegments <= 1)
+ {
+ Result = &InternalName[i];
+ }
+ else if (NumSegments == 2)
+ {
+ InternalName[i] = AML_DUAL_NAME_PREFIX;
+ Result = &InternalName[(ACPI_SIZE) i+1];
+ }
+ else
+ {
+ InternalName[i] = AML_MULTI_NAME_PREFIX_OP;
+ InternalName[(ACPI_SIZE) i+1] = (char) NumSegments;
+ Result = &InternalName[(ACPI_SIZE) i+2];
+ }
+ }
+
+ /* Build the name (minus path separators) */
+
+ for (; NumSegments; NumSegments--)
+ {
+ for (i = 0; i < ACPI_NAME_SIZE; i++)
+ {
+ if (AcpiNsValidPathSeparator (*ExternalName) ||
+ (*ExternalName == 0))
+ {
+ /* Pad the segment with underscore(s) if segment is short */
+
+ Result[i] = '_';
+ }
+ else
+ {
+ /* Convert the character to uppercase and save it */
+
+ Result[i] = (char) ACPI_TOUPPER ((int) *ExternalName);
+ ExternalName++;
+ }
+ }
+
+ /* Now we must have a path separator, or the pathname is bad */
+
+ if (!AcpiNsValidPathSeparator (*ExternalName) &&
+ (*ExternalName != 0))
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /* Move on the next segment */
+
+ ExternalName++;
+ Result += ACPI_NAME_SIZE;
+ }
+
+ /* Terminate the string */
+
+ *Result = 0;
+
+ if (Info->FullyQualified)
+ {
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Returning [%p] (abs) \"\\%s\"\n",
+ InternalName, InternalName));
+ }
+ else
+ {
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n",
+ InternalName, InternalName));
+ }
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsInternalizeName
+ *
+ * PARAMETERS: *ExternalName - External representation of name
+ * **Converted Name - Where to return the resulting
+ * internal represention of the name
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0")
+ * to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
+ *
+ *******************************************************************************/
+
+ACPI_STATUS
+AcpiNsInternalizeName (
+ const char *ExternalName,
+ char **ConvertedName)
+{
+ char *InternalName;
+ ACPI_NAMESTRING_INFO Info;
+ ACPI_STATUS Status;
+
+
+ ACPI_FUNCTION_TRACE (NsInternalizeName);
+
+
+ if ((!ExternalName) ||
+ (*ExternalName == 0) ||
+ (!ConvertedName))
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /* Get the length of the new internal name */
+
+ Info.ExternalName = ExternalName;
+ AcpiNsGetInternalNameLength (&Info);
+
+ /* We need a segment to store the internal name */
+
+ InternalName = ACPI_ALLOCATE_ZEROED (Info.Length);
+ if (!InternalName)
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Build the name */
+
+ Info.InternalName = InternalName;
+ Status = AcpiNsBuildInternalName (&Info);
+ if (ACPI_FAILURE (Status))
+ {
+ ACPI_FREE (InternalName);
+ return_ACPI_STATUS (Status);
+ }
+
+ *ConvertedName = InternalName;
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsExternalizeName
+ *
+ * PARAMETERS: InternalNameLength - Lenth of the internal name below
+ * InternalName - Internal representation of name
+ * ConvertedNameLength - Where the length is returned
+ * ConvertedName - Where the resulting external name
+ * is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
+ * to its external (printable) form (e.g. "\_PR_.CPU0")
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsExternalizeName (
+ UINT32 InternalNameLength,
+ const char *InternalName,
+ UINT32 *ConvertedNameLength,
+ char **ConvertedName)
+{
+ UINT32 NamesIndex = 0;
+ UINT32 NumSegments = 0;
+ UINT32 RequiredLength;
+ UINT32 PrefixLength = 0;
+ UINT32 i = 0;
+ UINT32 j = 0;
+
+
+ ACPI_FUNCTION_TRACE (NsExternalizeName);
+
+
+ if (!InternalNameLength ||
+ !InternalName ||
+ !ConvertedName)
+ {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /* Check for a prefix (one '\' | one or more '^') */
+
+ switch (InternalName[0])
+ {
+ case '\\':
+ PrefixLength = 1;
+ break;
+
+ case '^':
+ for (i = 0; i < InternalNameLength; i++)
+ {
+ if (InternalName[i] == '^')
+ {
+ PrefixLength = i + 1;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ if (i == InternalNameLength)
+ {
+ PrefixLength = i;
+ }
+
+ break;
+
+ default:
+ break;
+ }
+
+ /*
+ * Check for object names. Note that there could be 0-255 of these
+ * 4-byte elements.
+ */
+ if (PrefixLength < InternalNameLength)
+ {
+ switch (InternalName[PrefixLength])
+ {
+ case AML_MULTI_NAME_PREFIX_OP:
+
+ /* <count> 4-byte names */
+
+ NamesIndex = PrefixLength + 2;
+ NumSegments = (UINT8)
+ InternalName[(ACPI_SIZE) PrefixLength + 1];
+ break;
+
+ case AML_DUAL_NAME_PREFIX:
+
+ /* Two 4-byte names */
+
+ NamesIndex = PrefixLength + 1;
+ NumSegments = 2;
+ break;
+
+ case 0:
+
+ /* NullName */
+
+ NamesIndex = 0;
+ NumSegments = 0;
+ break;
+
+ default:
+
+ /* one 4-byte name */
+
+ NamesIndex = PrefixLength;
+ NumSegments = 1;
+ break;
+ }
+ }
+
+ /*
+ * Calculate the length of ConvertedName, which equals the length
+ * of the prefix, length of all object names, length of any required
+ * punctuation ('.') between object names, plus the NULL terminator.
+ */
+ RequiredLength = PrefixLength + (4 * NumSegments) +
+ ((NumSegments > 0) ? (NumSegments - 1) : 0) + 1;
+
+ /*
+ * Check to see if we're still in bounds. If not, there's a problem
+ * with InternalName (invalid format).
+ */
+ if (RequiredLength > InternalNameLength)
+ {
+ ACPI_ERROR ((AE_INFO, "Invalid internal name"));
+ return_ACPI_STATUS (AE_BAD_PATHNAME);
+ }
+
+ /* Build the ConvertedName */
+
+ *ConvertedName = ACPI_ALLOCATE_ZEROED (RequiredLength);
+ if (!(*ConvertedName))
+ {
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ j = 0;
+
+ for (i = 0; i < PrefixLength; i++)
+ {
+ (*ConvertedName)[j++] = InternalName[i];
+ }
+
+ if (NumSegments > 0)
+ {
+ for (i = 0; i < NumSegments; i++)
+ {
+ if (i > 0)
+ {
+ (*ConvertedName)[j++] = '.';
+ }
+
+ (*ConvertedName)[j++] = InternalName[NamesIndex++];
+ (*ConvertedName)[j++] = InternalName[NamesIndex++];
+ (*ConvertedName)[j++] = InternalName[NamesIndex++];
+ (*ConvertedName)[j++] = InternalName[NamesIndex++];
+ }
+ }
+
+ if (ConvertedNameLength)
+ {
+ *ConvertedNameLength = (UINT32) RequiredLength;
+ }
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsValidateHandle
+ *
+ * PARAMETERS: Handle - Handle to be validated and typecast to a
+ * namespace node.
+ *
+ * RETURN: A pointer to a namespace node
+ *
+ * DESCRIPTION: Convert a namespace handle to a namespace node. Handles special
+ * cases for the root node.
+ *
+ * NOTE: Real integer handles would allow for more verification
+ * and keep all pointers within this subsystem - however this introduces
+ * more overhead and has not been necessary to this point. Drivers
+ * holding handles are typically notified before a node becomes invalid
+ * due to a table unload.
+ *
+ ******************************************************************************/
+
+ACPI_NAMESPACE_NODE *
+AcpiNsValidateHandle (
+ ACPI_HANDLE Handle)
+{
+
+ ACPI_FUNCTION_ENTRY ();
+
+
+ /* Parameter validation */
+
+ if ((!Handle) || (Handle == ACPI_ROOT_OBJECT))
+ {
+ return (AcpiGbl_RootNode);
+ }
+
+ /* We can at least attempt to verify the handle */
+
+ if (ACPI_GET_DESCRIPTOR_TYPE (Handle) != ACPI_DESC_TYPE_NAMED)
+ {
+ return (NULL);
+ }
+
+ return (ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Handle));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsTerminate
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: none
+ *
+ * DESCRIPTION: free memory allocated for namespace and ACPI table storage.
+ *
+ ******************************************************************************/
+
+void
+AcpiNsTerminate (
+ void)
+{
+ ACPI_OPERAND_OBJECT *ObjDesc;
+
+
+ ACPI_FUNCTION_TRACE (NsTerminate);
+
+
+ /*
+ * 1) Free the entire namespace -- all nodes and objects
+ *
+ * Delete all object descriptors attached to namepsace nodes
+ */
+ AcpiNsDeleteNamespaceSubtree (AcpiGbl_RootNode);
+
+ /* Detach any objects attached to the root */
+
+ ObjDesc = AcpiNsGetAttachedObject (AcpiGbl_RootNode);
+ if (ObjDesc)
+ {
+ AcpiNsDetachObject (AcpiGbl_RootNode);
+ }
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Namespace freed\n"));
+ return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsOpensScope
+ *
+ * PARAMETERS: Type - A valid namespace type
+ *
+ * RETURN: NEWSCOPE if the passed type "opens a name scope" according
+ * to the ACPI specification, else 0
+ *
+ ******************************************************************************/
+
+UINT32
+AcpiNsOpensScope (
+ ACPI_OBJECT_TYPE Type)
+{
+ ACPI_FUNCTION_TRACE_STR (NsOpensScope, AcpiUtGetTypeName (Type));
+
+
+ if (!AcpiUtValidObjectType (Type))
+ {
+ /* type code out of range */
+
+ ACPI_WARNING ((AE_INFO, "Invalid Object Type 0x%X", Type));
+ return_UINT32 (ACPI_NS_NORMAL);
+ }
+
+ return_UINT32 (((UINT32) AcpiGbl_NsProperties[Type]) & ACPI_NS_NEWSCOPE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: AcpiNsGetNode
+ *
+ * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The
+ * \ (backslash) and ^ (carat) prefixes, and the
+ * . (period) to separate segments are supported.
+ * PrefixNode - Root of subtree to be searched, or NS_ALL for the
+ * root of the name space. If Name is fully
+ * qualified (first INT8 is '\'), the passed value
+ * of Scope will not be accessed.
+ * Flags - Used to indicate whether to perform upsearch or
+ * not.
+ * ReturnNode - Where the Node is returned
+ *
+ * DESCRIPTION: Look up a name relative to a given scope and return the
+ * corresponding Node. NOTE: Scope can be null.
+ *
+ * MUTEX: Locks namespace
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiNsGetNode (
+ ACPI_NAMESPACE_NODE *PrefixNode,
+ const char *Pathname,
+ UINT32 Flags,
+ ACPI_NAMESPACE_NODE **ReturnNode)
+{
+ ACPI_GENERIC_STATE ScopeInfo;
+ ACPI_STATUS Status;
+ char *InternalPath;
+
+
+ ACPI_FUNCTION_TRACE_PTR (NsGetNode, ACPI_CAST_PTR (char, Pathname));
+
+
+ if (!Pathname)
+ {
+ *ReturnNode = PrefixNode;
+ if (!PrefixNode)
+ {
+ *ReturnNode = AcpiGbl_RootNode;
+ }
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /* Convert path to internal representation */
+
+ Status = AcpiNsInternalizeName (Pathname, &InternalPath);
+ if (ACPI_FAILURE (Status))
+ {
+ return_ACPI_STATUS (Status);
+ }
+
+ /* Must lock namespace during lookup */
+
+ Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE (Status))
+ {
+ goto Cleanup;
+ }
+
+ /* Setup lookup scope (search starting point) */
+
+ ScopeInfo.Scope.Node = PrefixNode;
+
+ /* Lookup the name in the namespace */
+
+ Status = AcpiNsLookup (&ScopeInfo, InternalPath, ACPI_TYPE_ANY,
+ ACPI_IMODE_EXECUTE, (Flags | ACPI_NS_DONT_OPEN_SCOPE),
+ NULL, ReturnNode);
+ if (ACPI_FAILURE (Status))
+ {
+ ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%s, %s\n",
+ Pathname, AcpiFormatException (Status)));
+ }
+
+ (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+
+Cleanup:
+ ACPI_FREE (InternalPath);
+ return_ACPI_STATUS (Status);
+}
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