*****************************************************************************/
/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
+ * Copyright (C) 2000 - 2006, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <acpi/acinterp.h>
#define _COMPONENT ACPI_EVENTS
- ACPI_MODULE_NAME ("evxface")
-
+ACPI_MODULE_NAME("evxface")
/*******************************************************************************
*
*
******************************************************************************/
#ifdef ACPI_FUTURE_USAGE
-acpi_status
-acpi_install_exception_handler (
- acpi_exception_handler handler)
+acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("acpi_install_exception_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);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/* Don't allow two handlers. */
acpi_gbl_exception_handler = handler;
-cleanup:
- (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS);
- return_ACPI_STATUS (status);
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
}
-#endif /* ACPI_FUTURE_USAGE */
-
+#endif /* ACPI_FUTURE_USAGE */
/*******************************************************************************
*
******************************************************************************/
acpi_status
-acpi_install_fixed_event_handler (
- u32 event,
- acpi_event_handler handler,
- void *context)
+acpi_install_fixed_event_handler(u32 event,
+ acpi_event_handler handler, void *context)
{
- acpi_status status;
-
-
- ACPI_FUNCTION_TRACE ("acpi_install_fixed_event_handler");
+ acpi_status status;
+ ACPI_FUNCTION_TRACE("acpi_install_fixed_event_handler");
/* Parameter validation */
if (event > ACPI_EVENT_MAX) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/* Don't allow two handlers. */
acpi_gbl_fixed_event_handlers[event].handler = handler;
acpi_gbl_fixed_event_handlers[event].context = context;
- status = acpi_clear_event (event);
+ status = acpi_clear_event(event);
if (ACPI_SUCCESS(status))
- status = acpi_enable_event (event, 0);
- if (ACPI_FAILURE (status)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Could not enable fixed event.\n"));
+ 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));
}
- 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);
+ cleanup:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_install_fixed_event_handler);
+EXPORT_SYMBOL(acpi_install_fixed_event_handler);
/*******************************************************************************
*
******************************************************************************/
acpi_status
-acpi_remove_fixed_event_handler (
- u32 event,
- acpi_event_handler handler)
+acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
{
- acpi_status status = AE_OK;
-
-
- ACPI_FUNCTION_TRACE ("acpi_remove_fixed_event_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);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ 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);
+ 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_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));
+ 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);
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_remove_fixed_event_handler);
+EXPORT_SYMBOL(acpi_remove_fixed_event_handler);
/*******************************************************************************
*
******************************************************************************/
acpi_status
-acpi_install_notify_handler (
- acpi_handle device,
- u32 handler_type,
- acpi_notify_handler handler,
- void *context)
+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");
+ 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);
+ 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);
+ 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);
+ node = acpi_ns_map_handle_to_node(device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
/* 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)) {
+ 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.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.node = node;
acpi_gbl_device_notify.handler = handler;
acpi_gbl_device_notify.context = context;
}
else {
/* Notifies allowed on this object? */
- if (!acpi_ev_is_notify_object (node)) {
+ 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);
+ 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)) {
+ 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 {
+ } else {
/* Create a new object */
- obj_desc = acpi_ut_create_internal_object (node->type);
+ 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);
+ 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)) {
+ 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);
+ 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.node = node;
notify_obj->notify.handler = handler;
notify_obj->notify.context = context;
if (handler_type == ACPI_ALL_NOTIFY) {
/* Extra ref if installed in both */
- acpi_ut_add_reference (notify_obj);
+ acpi_ut_add_reference(notify_obj);
}
}
-
-unlock_and_exit:
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS (status);
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_install_notify_handler);
+EXPORT_SYMBOL(acpi_install_notify_handler);
/*******************************************************************************
*
******************************************************************************/
acpi_status
-acpi_remove_notify_handler (
- acpi_handle device,
- u32 handler_type,
- acpi_notify_handler handler)
+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");
+ 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)) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ 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);
+ 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);
+ 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 ROOT object.\n"));
+ 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)) {
+ !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);
+ (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)) {
- return_ACPI_STATUS (status);
- }
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
if (handler_type & ACPI_SYSTEM_NOTIFY) {
- acpi_gbl_system_notify.node = NULL;
+ 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.node = NULL;
acpi_gbl_device_notify.handler = NULL;
acpi_gbl_device_notify.context = NULL;
}
else {
/* Notifies allowed on this object? */
- if (!acpi_ev_is_notify_object (node)) {
+ 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);
+ obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
status = AE_NOT_EXIST;
goto unlock_and_exit;
if (handler_type & ACPI_SYSTEM_NOTIFY) {
notify_obj = obj_desc->common_notify.system_notify;
if ((!notify_obj) ||
- (notify_obj->notify.handler != handler)) {
+ (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);
+ (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)) {
- return_ACPI_STATUS (status);
- }
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/* Remove the handler */
obj_desc->common_notify.system_notify = NULL;
- acpi_ut_remove_reference (notify_obj);
+ acpi_ut_remove_reference(notify_obj);
}
if (handler_type & ACPI_DEVICE_NOTIFY) {
notify_obj = obj_desc->common_notify.device_notify;
if ((!notify_obj) ||
- (notify_obj->notify.handler != handler)) {
+ (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);
+ (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)) {
- return_ACPI_STATUS (status);
- }
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/* Remove the handler */
obj_desc->common_notify.device_notify = NULL;
- acpi_ut_remove_reference (notify_obj);
+ acpi_ut_remove_reference(notify_obj);
}
}
-
-unlock_and_exit:
- (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
- return_ACPI_STATUS (status);
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_remove_notify_handler);
+EXPORT_SYMBOL(acpi_remove_notify_handler);
/*******************************************************************************
*
* FUNCTION: acpi_install_gpe_handler
*
- * PARAMETERS: gpe_number - The GPE number within the GPE block
- * gpe_block - GPE block (NULL == FADT GPEs)
+ * 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
******************************************************************************/
acpi_status
-acpi_install_gpe_handler (
- acpi_handle gpe_device,
- u32 gpe_number,
- u32 type,
- acpi_event_handler address,
- void *context)
+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_FUNCTION_TRACE ("acpi_install_gpe_handler");
+ 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)) {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ 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);
+ 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) {
+ 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_MEM_CALLOCATE (sizeof (struct acpi_handler_info));
+ handler = ACPI_MEM_CALLOCATE(sizeof(struct acpi_handler_info));
if (!handler) {
status = AE_NO_MEMORY;
goto unlock_and_exit;
}
- handler->address = address;
- handler->context = context;
+ 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)) {
+ status = acpi_ev_disable_gpe(gpe_event_info);
+ if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
/* Install the handler */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ 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 &= ~(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, ACPI_NOT_ISR);
-
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
-unlock_and_exit:
- (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS);
- return_ACPI_STATUS (status);
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_install_gpe_handler);
+EXPORT_SYMBOL(acpi_install_gpe_handler);
/*******************************************************************************
*
* FUNCTION: acpi_remove_gpe_handler
*
- * PARAMETERS: gpe_number - The event to remove a handler
- * gpe_block - GPE block (NULL == FADT GPEs)
+ * 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
******************************************************************************/
acpi_status
-acpi_remove_gpe_handler (
- acpi_handle gpe_device,
- u32 gpe_number,
- acpi_event_handler address)
+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_FUNCTION_TRACE ("acpi_remove_gpe_handler");
+ 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);
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- status = acpi_ut_acquire_mutex (ACPI_MTX_EVENTS);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ 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);
+ 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) {
+ if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) !=
+ ACPI_GPE_DISPATCH_HANDLER) {
status = AE_NOT_EXIST;
goto unlock_and_exit;
}
/* Disable the GPE before removing the handler */
- status = acpi_ev_disable_gpe (gpe_event_info);
- if (ACPI_FAILURE (status)) {
+ 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);
+ (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);
- }
+ status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/* Remove the handler */
- acpi_os_acquire_lock (acpi_gbl_gpe_lock, ACPI_NOT_ISR);
+ 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 */
+ 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, ACPI_NOT_ISR);
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
/* Now we can free the handler object */
- ACPI_MEM_FREE (handler);
-
+ ACPI_MEM_FREE(handler);
-unlock_and_exit:
- (void) acpi_ut_release_mutex (ACPI_MTX_EVENTS);
- return_ACPI_STATUS (status);
+ unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+ return_ACPI_STATUS(status);
}
-EXPORT_SYMBOL(acpi_remove_gpe_handler);
+EXPORT_SYMBOL(acpi_remove_gpe_handler);
/*******************************************************************************
*
* FUNCTION: acpi_acquire_global_lock
*
* PARAMETERS: Timeout - How long the caller is willing to wait
- * out_handle - A handle to the lock if acquired
+ * Handle - Where the handle to the lock is returned
+ * (if acquired)
*
* RETURN: Status
*
*
******************************************************************************/
-acpi_status
-acpi_acquire_global_lock (
- u16 timeout,
- u32 *handle)
+acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
{
- acpi_status status;
-
+ acpi_status status;
if (!handle) {
return (AE_BAD_PARAMETER);
}
- status = acpi_ex_enter_interpreter ();
- if (ACPI_FAILURE (status)) {
+ status = acpi_ex_enter_interpreter();
+ if (ACPI_FAILURE(status)) {
return (status);
}
- status = acpi_ev_acquire_global_lock (timeout);
- acpi_ex_exit_interpreter ();
+ status = acpi_ev_acquire_global_lock(timeout);
+ acpi_ex_exit_interpreter();
- if (ACPI_SUCCESS (status)) {
+ if (ACPI_SUCCESS(status)) {
acpi_gbl_global_lock_handle++;
*handle = acpi_gbl_global_lock_handle;
}
return (status);
}
-EXPORT_SYMBOL(acpi_acquire_global_lock);
+EXPORT_SYMBOL(acpi_acquire_global_lock);
/*******************************************************************************
*
*
* RETURN: Status
*
- * DESCRIPTION: Release the ACPI Global Lock
+ * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid.
*
******************************************************************************/
-acpi_status
-acpi_release_global_lock (
- u32 handle)
+acpi_status acpi_release_global_lock(u32 handle)
{
- acpi_status status;
-
+ acpi_status status;
if (handle != acpi_gbl_global_lock_handle) {
return (AE_NOT_ACQUIRED);
}
- status = acpi_ev_release_global_lock ();
+ status = acpi_ev_release_global_lock();
return (status);
}
-EXPORT_SYMBOL(acpi_release_global_lock);
+EXPORT_SYMBOL(acpi_release_global_lock);
git://git.onelab.eu / linux-2.6.git / blobdiff