/******************************************************************************* * * Module Name: nsnames - Name manipulation and search * $Revision: 82 $ * ******************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2003, 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. * *****************************************************************************/ /* $DragonFly: src/sys/contrib/dev/acpica/Attic/nsnames.c,v 1.1 2003/09/24 03:32:16 drhodus Exp $ */ #define __NSNAMES_C__ #include "acpi.h" #include "amlcode.h" #include "acnamesp.h" #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME ("nsnames") /******************************************************************************* * * FUNCTION: AcpiNsBuildExternalPath * * PARAMETERS: Node - NS node whose pathname is needed * Size - Size of the pathname * *NameBuffer - Where to return the pathname * * RETURN: Places the pathname into the NameBuffer, in external format * (name segments separated by path separators) * * DESCRIPTION: Generate a full pathaname * ******************************************************************************/ void AcpiNsBuildExternalPath ( ACPI_NAMESPACE_NODE *Node, ACPI_SIZE Size, char *NameBuffer) { ACPI_SIZE Index; ACPI_NAMESPACE_NODE *ParentNode; ACPI_FUNCTION_NAME ("NsBuildExternalPath"); /* Special case for root */ Index = Size - 1; if (Index < ACPI_NAME_SIZE) { NameBuffer[0] = AML_ROOT_PREFIX; NameBuffer[1] = 0; return; } /* Store terminator byte, then build name backwards */ ParentNode = Node; NameBuffer[Index] = 0; while ((Index > ACPI_NAME_SIZE) && (ParentNode != AcpiGbl_RootNode)) { Index -= ACPI_NAME_SIZE; /* Put the name into the buffer */ ACPI_MOVE_UNALIGNED32_TO_32 ((NameBuffer + Index), &ParentNode->Name); ParentNode = AcpiNsGetParentNode (ParentNode); /* Prefix name with the path separator */ Index--; NameBuffer[Index] = ACPI_PATH_SEPARATOR; } /* Overwrite final separator with the root prefix character */ NameBuffer[Index] = AML_ROOT_PREFIX; if (Index != 0) { ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not construct pathname; index=%X, size=%X, Path=%s\n", (UINT32) Index, (UINT32) Size, &NameBuffer[Size])); } return; } #ifdef ACPI_DEBUG_OUTPUT /******************************************************************************* * * FUNCTION: AcpiNsGetExternalPathname * * PARAMETERS: Node - NS node whose pathname is needed * * RETURN: Pointer to storage containing the fully qualified name of * the node, In external format (name segments separated by path * separators.) * * DESCRIPTION: Used for debug printing in AcpiNsSearchTable(). * ******************************************************************************/ char * AcpiNsGetExternalPathname ( ACPI_NAMESPACE_NODE *Node) { char *NameBuffer; ACPI_SIZE Size; ACPI_FUNCTION_TRACE_PTR ("NsGetExternalPathname", Node); /* Calculate required buffer size based on depth below root */ Size = AcpiNsGetPathnameLength (Node); /* Allocate a buffer to be returned to caller */ NameBuffer = ACPI_MEM_CALLOCATE (Size); if (!NameBuffer) { ACPI_REPORT_ERROR (("NsGetTablePathname: allocation failure\n")); return_PTR (NULL); } /* Build the path in the allocated buffer */ AcpiNsBuildExternalPath (Node, Size, NameBuffer); return_PTR (NameBuffer); } #endif /******************************************************************************* * * FUNCTION: AcpiNsGetPathnameLength * * PARAMETERS: Node - Namespace node * * RETURN: Length of path, including prefix * * DESCRIPTION: Get the length of the pathname string for this node * ******************************************************************************/ ACPI_SIZE AcpiNsGetPathnameLength ( ACPI_NAMESPACE_NODE *Node) { ACPI_SIZE Size; ACPI_NAMESPACE_NODE *NextNode; ACPI_FUNCTION_ENTRY (); /* * Compute length of pathname as 5 * number of name segments. * Go back up the parent tree to the root */ Size = 0; NextNode = Node; while (NextNode && (NextNode != AcpiGbl_RootNode)) { Size += ACPI_PATH_SEGMENT_LENGTH; NextNode = AcpiNsGetParentNode (NextNode); } return (Size + 1); } /******************************************************************************* * * FUNCTION: AcpiNsHandleToPathname * * PARAMETERS: TargetHandle - Handle of named object whose name is * to be found * Buffer - Where the pathname is returned * * RETURN: Status, Buffer is filled with pathname if status is AE_OK * * DESCRIPTION: Build and return a full namespace pathname * ******************************************************************************/ ACPI_STATUS AcpiNsHandleToPathname ( ACPI_HANDLE TargetHandle, ACPI_BUFFER *Buffer) { ACPI_STATUS Status; ACPI_NAMESPACE_NODE *Node; ACPI_SIZE RequiredSize; ACPI_FUNCTION_TRACE_PTR ("NsHandleToPathname", TargetHandle); Node = AcpiNsMapHandleToNode (TargetHandle); if (!Node) { return_ACPI_STATUS (AE_BAD_PARAMETER); } /* Determine size required for the caller buffer */ RequiredSize = AcpiNsGetPathnameLength (Node); /* Validate/Allocate/Clear caller buffer */ Status = AcpiUtInitializeBuffer (Buffer, RequiredSize); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* Build the path in the caller buffer */ AcpiNsBuildExternalPath (Node, RequiredSize, Buffer->Pointer); ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%s [%X] \n", (char *) Buffer->Pointer, (UINT32) RequiredSize)); return_ACPI_STATUS (AE_OK); }