| 0,0 → 1,428 |
|---|
| /****************************************************************************** |
| * |
| * Module Name: nsload - namespace loading/expanding/contracting procedures |
| * |
| *****************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * 1. Copyright Notice |
| * |
| * Some or all of this work - Copyright (c) 1999 - 2010, 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 __NSLOAD_C__ |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| #include "acnamesp.h" |
| #include "acdispat.h" |
| #include "actables.h" |
| |
| |
| #define _COMPONENT ACPI_NAMESPACE |
| ACPI_MODULE_NAME ("nsload") |
| |
| /* Local prototypes */ |
| |
| #ifdef ACPI_FUTURE_IMPLEMENTATION |
| ACPI_STATUS |
| AcpiNsUnloadNamespace ( |
| ACPI_HANDLE Handle); |
| |
| static ACPI_STATUS |
| AcpiNsDeleteSubtree ( |
| ACPI_HANDLE StartHandle); |
| #endif |
| |
| |
| #ifndef ACPI_NO_METHOD_EXECUTION |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiNsLoadTable |
| * |
| * PARAMETERS: TableIndex - Index for table to be loaded |
| * Node - Owning NS node |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Load one ACPI table into the namespace |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiNsLoadTable ( |
| UINT32 TableIndex, |
| ACPI_NAMESPACE_NODE *Node) |
| { |
| ACPI_STATUS Status; |
| |
| |
| ACPI_FUNCTION_TRACE (NsLoadTable); |
| |
| |
| /* |
| * Parse the table and load the namespace with all named |
| * objects found within. Control methods are NOT parsed |
| * at this time. In fact, the control methods cannot be |
| * parsed until the entire namespace is loaded, because |
| * if a control method makes a forward reference (call) |
| * to another control method, we can't continue parsing |
| * because we don't know how many arguments to parse next! |
| */ |
| Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| |
| /* If table already loaded into namespace, just return */ |
| |
| if (AcpiTbIsTableLoaded (TableIndex)) |
| { |
| Status = AE_ALREADY_EXISTS; |
| goto Unlock; |
| } |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
| "**** Loading table into namespace ****\n")); |
| |
| Status = AcpiTbAllocateOwnerId (TableIndex); |
| if (ACPI_FAILURE (Status)) |
| { |
| goto Unlock; |
| } |
| |
| Status = AcpiNsParseTable (TableIndex, Node); |
| if (ACPI_SUCCESS (Status)) |
| { |
| AcpiTbSetTableLoadedFlag (TableIndex, TRUE); |
| } |
| else |
| { |
| (void) AcpiTbReleaseOwnerId (TableIndex); |
| } |
| |
| Unlock: |
| (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
| |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| |
| /* |
| * Now we can parse the control methods. We always parse |
| * them here for a sanity check, and if configured for |
| * just-in-time parsing, we delete the control method |
| * parse trees. |
| */ |
| ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
| "**** Begin Table Method Parsing and Object Initialization\n")); |
| |
| Status = AcpiDsInitializeObjects (TableIndex, Node); |
| |
| ACPI_DEBUG_PRINT ((ACPI_DB_INFO, |
| "**** Completed Table Method Parsing and Object Initialization\n")); |
| |
| return_ACPI_STATUS (Status); |
| } |
| |
| |
| #ifdef ACPI_OBSOLETE_FUNCTIONS |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiLoadNamespace |
| * |
| * PARAMETERS: None |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Load the name space from what ever is pointed to by DSDT. |
| * (DSDT points to either the BIOS or a buffer.) |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiNsLoadNamespace ( |
| void) |
| { |
| ACPI_STATUS Status; |
| |
| |
| ACPI_FUNCTION_TRACE (AcpiLoadNameSpace); |
| |
| |
| /* There must be at least a DSDT installed */ |
| |
| if (AcpiGbl_DSDT == NULL) |
| { |
| ACPI_ERROR ((AE_INFO, "DSDT is not in memory")); |
| return_ACPI_STATUS (AE_NO_ACPI_TABLES); |
| } |
| |
| /* |
| * Load the namespace. The DSDT is required, |
| * but the SSDT and PSDT tables are optional. |
| */ |
| Status = AcpiNsLoadTableByType (ACPI_TABLE_ID_DSDT); |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| |
| /* Ignore exceptions from these */ |
| |
| (void) AcpiNsLoadTableByType (ACPI_TABLE_ID_SSDT); |
| (void) AcpiNsLoadTableByType (ACPI_TABLE_ID_PSDT); |
| |
| ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, |
| "ACPI Namespace successfully loaded at root %p\n", |
| AcpiGbl_RootNode)); |
| |
| return_ACPI_STATUS (Status); |
| } |
| #endif |
| |
| #ifdef ACPI_FUTURE_IMPLEMENTATION |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiNsDeleteSubtree |
| * |
| * PARAMETERS: StartHandle - Handle in namespace where search begins |
| * |
| * RETURNS Status |
| * |
| * DESCRIPTION: Walks the namespace starting at the given handle and deletes |
| * all objects, entries, and scopes in the entire subtree. |
| * |
| * Namespace/Interpreter should be locked or the subsystem should |
| * be in shutdown before this routine is called. |
| * |
| ******************************************************************************/ |
| |
| static ACPI_STATUS |
| AcpiNsDeleteSubtree ( |
| ACPI_HANDLE StartHandle) |
| { |
| ACPI_STATUS Status; |
| ACPI_HANDLE ChildHandle; |
| ACPI_HANDLE ParentHandle; |
| ACPI_HANDLE NextChildHandle; |
| ACPI_HANDLE Dummy; |
| UINT32 Level; |
| |
| |
| ACPI_FUNCTION_TRACE (NsDeleteSubtree); |
| |
| |
| ParentHandle = StartHandle; |
| ChildHandle = NULL; |
| Level = 1; |
| |
| /* |
| * Traverse the tree of objects until we bubble back up |
| * to where we started. |
| */ |
| while (Level > 0) |
| { |
| /* Attempt to get the next object in this scope */ |
| |
| Status = AcpiGetNextObject (ACPI_TYPE_ANY, ParentHandle, |
| ChildHandle, &NextChildHandle); |
| |
| ChildHandle = NextChildHandle; |
| |
| /* Did we get a new object? */ |
| |
| if (ACPI_SUCCESS (Status)) |
| { |
| /* Check if this object has any children */ |
| |
| if (ACPI_SUCCESS (AcpiGetNextObject (ACPI_TYPE_ANY, ChildHandle, |
| NULL, &Dummy))) |
| { |
| /* |
| * There is at least one child of this object, |
| * visit the object |
| */ |
| Level++; |
| ParentHandle = ChildHandle; |
| ChildHandle = NULL; |
| } |
| } |
| else |
| { |
| /* |
| * No more children in this object, go back up to |
| * the object's parent |
| */ |
| Level--; |
| |
| /* Delete all children now */ |
| |
| AcpiNsDeleteChildren (ChildHandle); |
| |
| ChildHandle = ParentHandle; |
| Status = AcpiGetParent (ParentHandle, &ParentHandle); |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| } |
| } |
| |
| /* Now delete the starting object, and we are done */ |
| |
| AcpiNsRemoveNode (ChildHandle); |
| return_ACPI_STATUS (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiNsUnloadNameSpace |
| * |
| * PARAMETERS: Handle - Root of namespace subtree to be deleted |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Shrinks the namespace, typically in response to an undocking |
| * event. Deletes an entire subtree starting from (and |
| * including) the given handle. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiNsUnloadNamespace ( |
| ACPI_HANDLE Handle) |
| { |
| ACPI_STATUS Status; |
| |
| |
| ACPI_FUNCTION_TRACE (NsUnloadNameSpace); |
| |
| |
| /* Parameter validation */ |
| |
| if (!AcpiGbl_RootNode) |
| { |
| return_ACPI_STATUS (AE_NO_NAMESPACE); |
| } |
| |
| if (!Handle) |
| { |
| return_ACPI_STATUS (AE_BAD_PARAMETER); |
| } |
| |
| /* This function does the real work */ |
| |
| Status = AcpiNsDeleteSubtree (Handle); |
| |
| return_ACPI_STATUS (Status); |
| } |
| #endif |
| #endif |
| |