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-rw-r--r--drivers/acpi/events/evxface.c821
1 files changed, 0 insertions, 821 deletions
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
deleted file mode 100644
index 3b6a069f5b0..00000000000
--- a/drivers/acpi/events/evxface.c
+++ /dev/null
@@ -1,821 +0,0 @@
-/******************************************************************************
- *
- * Module Name: evxface - External interfaces for ACPI events
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, 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.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acnamesp.h>
-#include <acpi/acevents.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EVENTS
-ACPI_MODULE_NAME("evxface")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_exception_handler
- *
- * PARAMETERS: Handler - Pointer to the handler function for the
- * event
- *
- * RETURN: Status
- *
- * DESCRIPTION: Saves the pointer to the handler function
- *
- ******************************************************************************/
-#ifdef ACPI_FUTURE_USAGE
-acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_exception_handler);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Don't allow two handlers. */
-
- if (acpi_gbl_exception_handler) {
- status = AE_ALREADY_EXISTS;
- goto cleanup;
- }
-
- /* Install the handler */
-
- acpi_gbl_exception_handler = handler;
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
-#endif /* ACPI_FUTURE_USAGE */
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_fixed_event_handler
- *
- * 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
-acpi_install_fixed_event_handler(u32 event,
- acpi_event_handler handler, void *context)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler);
-
- /* Parameter validation */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Don't allow two handlers. */
-
- if (NULL != acpi_gbl_fixed_event_handlers[event].handler) {
- status = AE_ALREADY_EXISTS;
- goto cleanup;
- }
-
- /* Install the handler before enabling the event */
-
- acpi_gbl_fixed_event_handlers[event].handler = handler;
- acpi_gbl_fixed_event_handlers[event].context = context;
-
- status = acpi_clear_event(event);
- if (ACPI_SUCCESS(status))
- status = acpi_enable_event(event, 0);
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO, "Could not enable fixed event %X",
- event));
-
- /* Remove the handler */
-
- acpi_gbl_fixed_event_handlers[event].handler = NULL;
- acpi_gbl_fixed_event_handlers[event].context = NULL;
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Enabled fixed event %X, Handler=%p\n", event,
- handler));
- }
-
- cleanup:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_fixed_event_handler
- *
- * PARAMETERS: Event - Event type to disable.
- * Handler - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Disables the event and unregisters the event handler.
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler);
-
- /* Parameter validation */
-
- if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Disable the event before removing the handler */
-
- status = acpi_disable_event(event, 0);
-
- /* Always Remove the handler */
-
- acpi_gbl_fixed_event_handlers[event].handler = NULL;
- acpi_gbl_fixed_event_handlers[event].context = NULL;
-
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO,
- "Could not write to fixed event enable register %X",
- event));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n",
- event));
- }
-
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_notify_handler
- *
- * PARAMETERS: Device - The device for which notifies will be handled
- * handler_type - The type of handler:
- * ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
- * ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
- * ACPI_ALL_NOTIFY: both system and device
- * 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
-acpi_install_notify_handler(acpi_handle device,
- u32 handler_type,
- acpi_notify_handler handler, void *context)
-{
- union acpi_operand_object *obj_desc;
- union acpi_operand_object *notify_obj;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_install_notify_handler);
-
- /* Parameter validation */
-
- if ((!device) ||
- (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /*
- * 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 (((handler_type & ACPI_SYSTEM_NOTIFY) &&
- acpi_gbl_system_notify.handler) ||
- ((handler_type & ACPI_DEVICE_NOTIFY) &&
- acpi_gbl_device_notify.handler)) {
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- }
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- acpi_gbl_system_notify.node = node;
- acpi_gbl_system_notify.handler = handler;
- acpi_gbl_system_notify.context = context;
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- acpi_gbl_device_notify.node = node;
- acpi_gbl_device_notify.handler = handler;
- acpi_gbl_device_notify.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 (!acpi_ev_is_notify_object(node)) {
- status = AE_TYPE;
- goto unlock_and_exit;
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (obj_desc) {
-
- /* Object exists - make sure there's no handler */
-
- if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
- obj_desc->common_notify.system_notify) ||
- ((handler_type & ACPI_DEVICE_NOTIFY) &&
- obj_desc->common_notify.device_notify)) {
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- }
- } else {
- /* Create a new object */
-
- obj_desc = acpi_ut_create_internal_object(node->type);
- if (!obj_desc) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- /* Attach new object to the Node */
-
- status =
- acpi_ns_attach_object(device, obj_desc, node->type);
-
- /* Remove local reference to the object */
-
- acpi_ut_remove_reference(obj_desc);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
- }
-
- /* Install the handler */
-
- notify_obj =
- acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_NOTIFY);
- if (!notify_obj) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- notify_obj->notify.node = node;
- notify_obj->notify.handler = handler;
- notify_obj->notify.context = context;
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- obj_desc->common_notify.system_notify = notify_obj;
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- obj_desc->common_notify.device_notify = notify_obj;
- }
-
- if (handler_type == ACPI_ALL_NOTIFY) {
-
- /* Extra ref if installed in both */
-
- acpi_ut_add_reference(notify_obj);
- }
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_notify_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_notify_handler
- *
- * PARAMETERS: Device - The device for which notifies will be handled
- * handler_type - The type of handler:
- * ACPI_SYSTEM_NOTIFY: system_handler (00-7f)
- * ACPI_DEVICE_NOTIFY: driver_handler (80-ff)
- * ACPI_ALL_NOTIFY: both system and device
- * Handler - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a handler for notifies on an ACPI device
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_notify_handler(acpi_handle device,
- u32 handler_type, acpi_notify_handler handler)
-{
- union acpi_operand_object *notify_obj;
- union acpi_operand_object *obj_desc;
- struct acpi_namespace_node *node;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(acpi_remove_notify_handler);
-
- /* Parameter validation */
-
- if ((!device) ||
- (!handler) || (handler_type > ACPI_MAX_NOTIFY_HANDLER_TYPE)) {
- status = AE_BAD_PARAMETER;
- goto exit;
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Convert and validate the device handle */
-
- node = acpi_ns_map_handle_to_node(device);
- if (!node) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Root Object */
-
- if (device == ACPI_ROOT_OBJECT) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Removing notify handler for namespace root object\n"));
-
- if (((handler_type & ACPI_SYSTEM_NOTIFY) &&
- !acpi_gbl_system_notify.handler) ||
- ((handler_type & ACPI_DEVICE_NOTIFY) &&
- !acpi_gbl_device_notify.handler)) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- acpi_gbl_system_notify.node = NULL;
- acpi_gbl_system_notify.handler = NULL;
- acpi_gbl_system_notify.context = NULL;
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- acpi_gbl_device_notify.node = NULL;
- acpi_gbl_device_notify.handler = NULL;
- acpi_gbl_device_notify.context = NULL;
- }
- }
-
- /* All Other Objects */
-
- else {
- /* Notifies allowed on this object? */
-
- if (!acpi_ev_is_notify_object(node)) {
- status = AE_TYPE;
- goto unlock_and_exit;
- }
-
- /* Check for an existing internal object */
-
- obj_desc = acpi_ns_get_attached_object(node);
- if (!obj_desc) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Object exists - make sure there's an existing handler */
-
- if (handler_type & ACPI_SYSTEM_NOTIFY) {
- notify_obj = obj_desc->common_notify.system_notify;
- if (!notify_obj) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- if (notify_obj->notify.handler != handler) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Remove the handler */
- obj_desc->common_notify.system_notify = NULL;
- acpi_ut_remove_reference(notify_obj);
- }
-
- if (handler_type & ACPI_DEVICE_NOTIFY) {
- notify_obj = obj_desc->common_notify.device_notify;
- if (!notify_obj) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- if (notify_obj->notify.handler != handler) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Remove the handler */
- obj_desc->common_notify.device_notify = NULL;
- acpi_ut_remove_reference(notify_obj);
- }
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
- exit:
- if (ACPI_FAILURE(status))
- ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler"));
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_install_gpe_handler
- *
- * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT
- * defined GPEs)
- * gpe_number - The GPE number within the GPE block
- * Type - Whether this GPE should be treated as an
- * edge- or level-triggered interrupt.
- * Address - 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
-acpi_install_gpe_handler(acpi_handle gpe_device,
- u32 gpe_number,
- u32 type, acpi_event_handler address, void *context)
-{
- struct acpi_gpe_event_info *gpe_event_info;
- struct acpi_handler_info *handler;
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(acpi_install_gpe_handler);
-
- /* Parameter validation */
-
- if ((!address) || (type > ACPI_GPE_XRUPT_TYPE_MASK)) {
- status = AE_BAD_PARAMETER;
- goto exit;
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- goto exit;
- }
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Make sure that there isn't a handler there already */
-
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
- ACPI_GPE_DISPATCH_HANDLER) {
- status = AE_ALREADY_EXISTS;
- goto unlock_and_exit;
- }
-
- /* Allocate and init handler object */
-
- handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info));
- if (!handler) {
- status = AE_NO_MEMORY;
- goto unlock_and_exit;
- }
-
- handler->address = address;
- handler->context = context;
- handler->method_node = gpe_event_info->dispatch.method_node;
-
- /* Disable the GPE before installing the handler */
-
- status = acpi_ev_disable_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Install the handler */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- gpe_event_info->dispatch.handler = handler;
-
- /* Setup up dispatch flags to indicate handler (vs. method) */
-
- gpe_event_info->flags &= ~(ACPI_GPE_XRUPT_TYPE_MASK | ACPI_GPE_DISPATCH_MASK); /* Clear bits */
- gpe_event_info->flags |= (u8) (type | ACPI_GPE_DISPATCH_HANDLER);
-
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- exit:
- if (ACPI_FAILURE(status))
- ACPI_EXCEPTION((AE_INFO, status,
- "Installing notify handler failed"));
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_remove_gpe_handler
- *
- * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT
- * defined GPEs)
- * gpe_number - The event to remove a handler
- * Address - Address of the handler
- *
- * RETURN: Status
- *
- * DESCRIPTION: Remove a handler for a General Purpose acpi_event.
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_gpe_handler(acpi_handle gpe_device,
- u32 gpe_number, acpi_event_handler address)
-{
- struct acpi_gpe_event_info *gpe_event_info;
- struct acpi_handler_info *handler;
- acpi_status status;
- acpi_cpu_flags flags;
-
- ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler);
-
- /* Parameter validation */
-
- if (!address) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Ensure that we have a valid GPE number */
-
- gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
- if (!gpe_event_info) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Make sure that a handler is indeed installed */
-
- if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) !=
- ACPI_GPE_DISPATCH_HANDLER) {
- status = AE_NOT_EXIST;
- goto unlock_and_exit;
- }
-
- /* Make sure that the installed handler is the same */
-
- if (gpe_event_info->dispatch.handler->address != address) {
- status = AE_BAD_PARAMETER;
- goto unlock_and_exit;
- }
-
- /* Disable the GPE before removing the handler */
-
- status = acpi_ev_disable_gpe(gpe_event_info);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
-
- /* Make sure all deferred tasks are completed */
-
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- acpi_os_wait_events_complete(NULL);
- status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /* Remove the handler */
-
- flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
- handler = gpe_event_info->dispatch.handler;
-
- /* Restore Method node (if any), set dispatch flags */
-
- gpe_event_info->dispatch.method_node = handler->method_node;
- gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; /* Clear bits */
- if (handler->method_node) {
- gpe_event_info->flags |= ACPI_GPE_DISPATCH_METHOD;
- }
- acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-
- /* Now we can free the handler object */
-
- ACPI_FREE(handler);
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
- return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_acquire_global_lock
- *
- * PARAMETERS: Timeout - How long the caller is willing to wait
- * Handle - Where the handle to the lock is returned
- * (if acquired)
- *
- * RETURN: Status
- *
- * DESCRIPTION: Acquire the ACPI Global Lock
- *
- * Note: Allows callers with the same thread ID to acquire the global lock
- * multiple times. In other words, externally, the behavior of the global lock
- * is identical to an AML mutex. On the first acquire, a new handle is
- * returned. On any subsequent calls to acquire by the same thread, the same
- * handle is returned.
- *
- ******************************************************************************/
-acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
-{
- acpi_status status;
-
- if (!handle) {
- return (AE_BAD_PARAMETER);
- }
-
- /* Must lock interpreter to prevent race conditions */
-
- acpi_ex_enter_interpreter();
-
- status = acpi_ex_acquire_mutex_object(timeout,
- acpi_gbl_global_lock_mutex,
- acpi_os_get_thread_id());
-
- if (ACPI_SUCCESS(status)) {
-
- /* Return the global lock handle (updated in acpi_ev_acquire_global_lock) */
-
- *handle = acpi_gbl_global_lock_handle;
- }
-
- acpi_ex_exit_interpreter();
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock)
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_release_global_lock
- *
- * PARAMETERS: Handle - Returned from acpi_acquire_global_lock
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid.
- *
- ******************************************************************************/
-acpi_status acpi_release_global_lock(u32 handle)
-{
- acpi_status status;
-
- if (!handle || (handle != acpi_gbl_global_lock_handle)) {
- return (AE_NOT_ACQUIRED);
- }
-
- status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
- return (status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_release_global_lock)