diff options
Diffstat (limited to 'sys/contrib/dev/acpica/evxface.c')
-rw-r--r-- | sys/contrib/dev/acpica/evxface.c | 817 |
1 files changed, 817 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/evxface.c b/sys/contrib/dev/acpica/evxface.c new file mode 100644 index 0000000..b50e19e --- /dev/null +++ b/sys/contrib/dev/acpica/evxface.c @@ -0,0 +1,817 @@ +/****************************************************************************** + * + * Module Name: evxface - External interfaces for ACPI events + * $Revision: 132 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2002, 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 prton 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 __EVXFACE_C__ + +#include "acpi.h" +#include "acnamesp.h" +#include "acevents.h" +#include "acinterp.h" + +#define _COMPONENT ACPI_EVENTS + ACPI_MODULE_NAME ("evxface") + + +/******************************************************************************* + * + * FUNCTION: AcpiInstallFixedEventHandler + * + * PARAMETERS: Event - Event type to enable. + * Handler - Pointer to the handler function for the + * event + * Context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Saves the pointer to the handler function and then enables the + * event. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiInstallFixedEventHandler ( + UINT32 Event, + ACPI_EVENT_HANDLER Handler, + void *Context) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE ("AcpiInstallFixedEventHandler"); + + + /* Parameter validation */ + + if (Event > ACPI_EVENT_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Don't allow two handlers. */ + + if (NULL != AcpiGbl_FixedEventHandlers[Event].Handler) + { + Status = AE_ALREADY_EXISTS; + goto Cleanup; + } + + /* Install the handler before enabling the event */ + + AcpiGbl_FixedEventHandlers[Event].Handler = Handler; + AcpiGbl_FixedEventHandlers[Event].Context = Context; + + Status = AcpiEnableEvent (Event, ACPI_EVENT_FIXED, 0); + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Could not enable fixed event.\n")); + + /* Remove the handler */ + + AcpiGbl_FixedEventHandlers[Event].Handler = NULL; + AcpiGbl_FixedEventHandlers[Event].Context = NULL; + } + else + { + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, + "Enabled fixed event %X, Handler=%p\n", Event, Handler)); + } + + +Cleanup: + (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRemoveFixedEventHandler + * + * PARAMETERS: Event - Event type to disable. + * Handler - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Disables the event and unregisters the event handler. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRemoveFixedEventHandler ( + UINT32 Event, + ACPI_EVENT_HANDLER Handler) +{ + ACPI_STATUS Status = AE_OK; + + + ACPI_FUNCTION_TRACE ("AcpiRemoveFixedEventHandler"); + + + /* Parameter validation */ + + if (Event > ACPI_EVENT_MAX) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Disable the event before removing the handler */ + + Status = AcpiDisableEvent(Event, ACPI_EVENT_FIXED, 0); + + /* Always Remove the handler */ + + AcpiGbl_FixedEventHandlers[Event].Handler = NULL; + AcpiGbl_FixedEventHandlers[Event].Context = NULL; + + if (ACPI_FAILURE (Status)) + { + ACPI_DEBUG_PRINT ((ACPI_DB_WARN, + "Could not write to fixed event enable register.\n")); + } + else + { + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Disabled fixed event %X.\n", Event)); + } + + (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiInstallNotifyHandler + * + * PARAMETERS: Device - The device for which notifies will be handled + * HandlerType - The type of handler: + * ACPI_SYSTEM_NOTIFY: SystemHandler (00-7f) + * ACPI_DEVICE_NOTIFY: DriverHandler (80-ff) + * Handler - Address of the handler + * Context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for notifies on an ACPI device + * + ******************************************************************************/ + +ACPI_STATUS +AcpiInstallNotifyHandler ( + ACPI_HANDLE Device, + UINT32 HandlerType, + ACPI_NOTIFY_HANDLER Handler, + void *Context) +{ + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_OPERAND_OBJECT *NotifyObj; + ACPI_NAMESPACE_NODE *Node; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE ("AcpiInstallNotifyHandler"); + + + /* Parameter validation */ + + if ((!Device) || + (!Handler) || + (HandlerType > ACPI_MAX_NOTIFY_HANDLER_TYPE)) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Convert and validate the device handle */ + + Node = AcpiNsMapHandleToNode (Device); + if (!Node) + { + Status = AE_BAD_PARAMETER; + goto UnlockAndExit; + } + + /* + * Root Object: + * Registering a notify handler on the root object indicates that the + * caller wishes to receive notifications for all objects. Note that + * only one <external> global handler can be regsitered (per notify type). + */ + if (Device == ACPI_ROOT_OBJECT) + { + /* Make sure the handler is not already installed */ + + if (((HandlerType == ACPI_SYSTEM_NOTIFY) && + AcpiGbl_SysNotify.Handler) || + ((HandlerType == ACPI_DEVICE_NOTIFY) && + AcpiGbl_DrvNotify.Handler)) + { + Status = AE_ALREADY_EXISTS; + goto UnlockAndExit; + } + + if (HandlerType == ACPI_SYSTEM_NOTIFY) + { + AcpiGbl_SysNotify.Node = Node; + AcpiGbl_SysNotify.Handler = Handler; + AcpiGbl_SysNotify.Context = Context; + } + else /* ACPI_DEVICE_NOTIFY */ + { + AcpiGbl_DrvNotify.Node = Node; + AcpiGbl_DrvNotify.Handler = Handler; + AcpiGbl_DrvNotify.Context = Context; + } + + /* Global notify handler installed */ + } + + /* + * All Other Objects: + * Caller will only receive notifications specific to the target object. + * Note that only certain object types can receive notifications. + */ + else + { + /* Notifies allowed on this object? */ + + if (!AcpiEvIsNotifyObject (Node)) + { + Status = AE_TYPE; + goto UnlockAndExit; + } + + /* Check for an existing internal object */ + + ObjDesc = AcpiNsGetAttachedObject (Node); + if (ObjDesc) + { + + /* Object exists - make sure there's no handler */ + + if (((HandlerType == ACPI_SYSTEM_NOTIFY) && + ObjDesc->CommonNotify.SysHandler) || + ((HandlerType == ACPI_DEVICE_NOTIFY) && + ObjDesc->CommonNotify.DrvHandler)) + { + Status = AE_ALREADY_EXISTS; + goto UnlockAndExit; + } + } + else + { + /* Create a new object */ + + ObjDesc = AcpiUtCreateInternalObject (Node->Type); + if (!ObjDesc) + { + Status = AE_NO_MEMORY; + goto UnlockAndExit; + } + + /* Attach new object to the Node */ + + Status = AcpiNsAttachObject (Device, ObjDesc, Node->Type); + if (ACPI_FAILURE (Status)) + { + goto UnlockAndExit; + } + } + + /* Install the handler */ + + NotifyObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_NOTIFY); + if (!NotifyObj) + { + Status = AE_NO_MEMORY; + goto UnlockAndExit; + } + + NotifyObj->NotifyHandler.Node = Node; + NotifyObj->NotifyHandler.Handler = Handler; + NotifyObj->NotifyHandler.Context = Context; + + if (HandlerType == ACPI_SYSTEM_NOTIFY) + { + ObjDesc->CommonNotify.SysHandler = NotifyObj; + } + else /* ACPI_DEVICE_NOTIFY */ + { + ObjDesc->CommonNotify.DrvHandler = NotifyObj; + } + } + + +UnlockAndExit: + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRemoveNotifyHandler + * + * PARAMETERS: Device - The device for which notifies will be handled + * HandlerType - The type of handler: + * ACPI_SYSTEM_NOTIFY: SystemHandler (00-7f) + * ACPI_DEVICE_NOTIFY: DriverHandler (80-ff) + * Handler - Address of the handler + * RETURN: Status + * + * DESCRIPTION: Remove a handler for notifies on an ACPI device + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRemoveNotifyHandler ( + ACPI_HANDLE Device, + UINT32 HandlerType, + ACPI_NOTIFY_HANDLER Handler) +{ + ACPI_OPERAND_OBJECT *NotifyObj; + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_NAMESPACE_NODE *Node; + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE ("AcpiRemoveNotifyHandler"); + + + /* Parameter validation */ + + if ((!Device) || + (!Handler) || + (HandlerType > ACPI_MAX_NOTIFY_HANDLER_TYPE)) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Convert and validate the device handle */ + + Node = AcpiNsMapHandleToNode (Device); + if (!Node) + { + Status = AE_BAD_PARAMETER; + goto UnlockAndExit; + } + + /* + * Root Object + */ + if (Device == ACPI_ROOT_OBJECT) + { + ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing notify handler for ROOT object.\n")); + + if (((HandlerType == ACPI_SYSTEM_NOTIFY) && + !AcpiGbl_SysNotify.Handler) || + ((HandlerType == ACPI_DEVICE_NOTIFY) && + !AcpiGbl_DrvNotify.Handler)) + { + Status = AE_NOT_EXIST; + goto UnlockAndExit; + } + + if (HandlerType == ACPI_SYSTEM_NOTIFY) + { + AcpiGbl_SysNotify.Node = NULL; + AcpiGbl_SysNotify.Handler = NULL; + AcpiGbl_SysNotify.Context = NULL; + } + else + { + AcpiGbl_DrvNotify.Node = NULL; + AcpiGbl_DrvNotify.Handler = NULL; + AcpiGbl_DrvNotify.Context = NULL; + } + } + + /* + * All Other Objects + */ + else + { + /* Notifies allowed on this object? */ + + if (!AcpiEvIsNotifyObject (Node)) + { + Status = AE_TYPE; + goto UnlockAndExit; + } + + /* Check for an existing internal object */ + + ObjDesc = AcpiNsGetAttachedObject (Node); + if (!ObjDesc) + { + Status = AE_NOT_EXIST; + goto UnlockAndExit; + } + + /* Object exists - make sure there's an existing handler */ + + if (HandlerType == ACPI_SYSTEM_NOTIFY) + { + NotifyObj = ObjDesc->CommonNotify.SysHandler; + } + else + { + NotifyObj = ObjDesc->CommonNotify.DrvHandler; + } + + if ((!NotifyObj) || + (NotifyObj->NotifyHandler.Handler != Handler)) + { + Status = AE_BAD_PARAMETER; + goto UnlockAndExit; + } + + /* Remove the handler */ + + if (HandlerType == ACPI_SYSTEM_NOTIFY) + { + ObjDesc->CommonNotify.SysHandler = NULL; + } + else + { + ObjDesc->CommonNotify.DrvHandler = NULL; + } + + AcpiUtRemoveReference (NotifyObj); + } + + +UnlockAndExit: + (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiInstallGpeHandler + * + * PARAMETERS: GpeNumber - The GPE number. The numbering scheme is + * bank 0 first, then bank 1. + * Type - Whether this GPE should be treated as an + * edge- or level-triggered interrupt. + * Handler - Address of the handler + * Context - Value passed to the handler on each GPE + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for a General Purpose Event. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiInstallGpeHandler ( + UINT32 GpeNumber, + UINT32 Type, + ACPI_GPE_HANDLER Handler, + void *Context) +{ + ACPI_STATUS Status; + UINT32 GpeNumberIndex; + + + ACPI_FUNCTION_TRACE ("AcpiInstallGpeHandler"); + + + /* Parameter validation */ + + if (!Handler) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Ensure that we have a valid GPE number */ + + GpeNumberIndex = AcpiEvGetGpeNumberIndex (GpeNumber); + if (GpeNumberIndex == ACPI_GPE_INVALID) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Make sure that there isn't a handler there already */ + + if (AcpiGbl_GpeNumberInfo[GpeNumberIndex].Handler) + { + Status = AE_ALREADY_EXISTS; + goto Cleanup; + } + + /* Install the handler */ + + AcpiGbl_GpeNumberInfo[GpeNumberIndex].Handler = Handler; + AcpiGbl_GpeNumberInfo[GpeNumberIndex].Context = Context; + AcpiGbl_GpeNumberInfo[GpeNumberIndex].Type = (UINT8) Type; + + /* Clear the GPE (of stale events), the enable it */ + + Status = AcpiHwClearGpe (GpeNumber); + if (ACPI_FAILURE (Status)) + { + goto Cleanup; + } + + Status = AcpiHwEnableGpe (GpeNumber); + + +Cleanup: + (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiRemoveGpeHandler + * + * PARAMETERS: GpeNumber - The event to remove a handler + * Handler - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Remove a handler for a General Purpose AcpiEvent. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiRemoveGpeHandler ( + UINT32 GpeNumber, + ACPI_GPE_HANDLER Handler) +{ + ACPI_STATUS Status; + UINT32 GpeNumberIndex; + + + ACPI_FUNCTION_TRACE ("AcpiRemoveGpeHandler"); + + + /* Parameter validation */ + + if (!Handler) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Ensure that we have a valid GPE number */ + + GpeNumberIndex = AcpiEvGetGpeNumberIndex (GpeNumber); + if (GpeNumberIndex == ACPI_GPE_INVALID) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Disable the GPE before removing the handler */ + + Status = AcpiHwDisableGpe (GpeNumber); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Make sure that the installed handler is the same */ + + if (AcpiGbl_GpeNumberInfo[GpeNumberIndex].Handler != Handler) + { + (void) AcpiHwEnableGpe (GpeNumber); + Status = AE_BAD_PARAMETER; + goto Cleanup; + } + + /* Remove the handler */ + + AcpiGbl_GpeNumberInfo[GpeNumberIndex].Handler = NULL; + AcpiGbl_GpeNumberInfo[GpeNumberIndex].Context = NULL; + + +Cleanup: + (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiAcquireGlobalLock + * + * PARAMETERS: Timeout - How long the caller is willing to wait + * OutHandle - A handle to the lock if acquired + * + * RETURN: Status + * + * DESCRIPTION: Acquire the ACPI Global Lock + * + ******************************************************************************/ + +ACPI_STATUS +AcpiAcquireGlobalLock ( + UINT16 Timeout, + UINT32 *Handle) +{ + ACPI_STATUS Status; + + + if (!Handle) + { + return (AE_BAD_PARAMETER); + } + + Status = AcpiExEnterInterpreter (); + if (ACPI_FAILURE (Status)) + { + return (Status); + } + + Status = AcpiEvAcquireGlobalLock (Timeout); + AcpiExExitInterpreter (); + + if (ACPI_SUCCESS (Status)) + { + AcpiGbl_GlobalLockHandle++; + *Handle = AcpiGbl_GlobalLockHandle; + } + + return (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiReleaseGlobalLock + * + * PARAMETERS: Handle - Returned from AcpiAcquireGlobalLock + * + * RETURN: Status + * + * DESCRIPTION: Release the ACPI Global Lock + * + ******************************************************************************/ + +ACPI_STATUS +AcpiReleaseGlobalLock ( + UINT32 Handle) +{ + ACPI_STATUS Status; + + + if (Handle != AcpiGbl_GlobalLockHandle) + { + return (AE_NOT_ACQUIRED); + } + + Status = AcpiEvReleaseGlobalLock (); + return (Status); +} + + |