diff options
Diffstat (limited to 'drivers/acpi/events/evmisc.c')
| -rw-r--r-- | drivers/acpi/events/evmisc.c | 293 |
1 files changed, 127 insertions, 166 deletions
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c index 659e90956112..7e57b8470f55 100644 --- a/drivers/acpi/events/evmisc.c +++ b/drivers/acpi/events/evmisc.c @@ -47,12 +47,10 @@ #include <acpi/acinterp.h> #define _COMPONENT ACPI_EVENTS - ACPI_MODULE_NAME ("evmisc") - +ACPI_MODULE_NAME("evmisc") #ifdef ACPI_DEBUG_OUTPUT -static const char *acpi_notify_value_names[] = -{ +static const char *acpi_notify_value_names[] = { "Bus Check", "Device Check", "Device Wake", @@ -66,18 +64,11 @@ static const char *acpi_notify_value_names[] = /* Local prototypes */ -static void ACPI_SYSTEM_XFACE -acpi_ev_notify_dispatch ( - void *context); - -static void ACPI_SYSTEM_XFACE -acpi_ev_global_lock_thread ( - void *context); +static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context); -static u32 -acpi_ev_global_lock_handler ( - void *context); +static void ACPI_SYSTEM_XFACE acpi_ev_global_lock_thread(void *context); +static u32 acpi_ev_global_lock_handler(void *context); /******************************************************************************* * @@ -93,9 +84,7 @@ acpi_ev_global_lock_handler ( * ******************************************************************************/ -u8 -acpi_ev_is_notify_object ( - struct acpi_namespace_node *node) +u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node) { switch (node->type) { case ACPI_TYPE_DEVICE: @@ -112,7 +101,6 @@ acpi_ev_is_notify_object ( } } - /******************************************************************************* * * FUNCTION: acpi_ev_queue_notify_request @@ -128,18 +116,15 @@ acpi_ev_is_notify_object ( ******************************************************************************/ acpi_status -acpi_ev_queue_notify_request ( - struct acpi_namespace_node *node, - u32 notify_value) +acpi_ev_queue_notify_request(struct acpi_namespace_node * node, + u32 notify_value) { - union acpi_operand_object *obj_desc; - union acpi_operand_object *handler_obj = NULL; - union acpi_generic_state *notify_info; - acpi_status status = AE_OK; - - - ACPI_FUNCTION_NAME ("ev_queue_notify_request"); + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj = NULL; + union acpi_generic_state *notify_info; + acpi_status status = AE_OK; + ACPI_FUNCTION_NAME("ev_queue_notify_request"); /* * For value 3 (Ejection Request), some device method may need to be run. @@ -148,22 +133,22 @@ acpi_ev_queue_notify_request ( * For value 0x80 (Status Change) on the power button or sleep button, * initiate soft-off or sleep operation? */ - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Dispatching Notify(%X) on node %p\n", notify_value, node)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Dispatching Notify(%X) on node %p\n", notify_value, + node)); if (notify_value <= 7) { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Notify value: %s\n", - acpi_notify_value_names[notify_value])); - } - else { - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "Notify value: 0x%2.2X **Device Specific**\n", - notify_value)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notify value: %s\n", + acpi_notify_value_names[notify_value])); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Notify value: 0x%2.2X **Device Specific**\n", + notify_value)); } /* Get the notify object attached to the NS Node */ - obj_desc = acpi_ns_get_attached_object (node); + obj_desc = acpi_ns_get_attached_object(node); if (obj_desc) { /* We have the notify object, Get the right handler */ @@ -174,10 +159,11 @@ acpi_ev_queue_notify_request ( case ACPI_TYPE_POWER: if (notify_value <= ACPI_MAX_SYS_NOTIFY) { - handler_obj = obj_desc->common_notify.system_notify; - } - else { - handler_obj = obj_desc->common_notify.device_notify; + handler_obj = + obj_desc->common_notify.system_notify; + } else { + handler_obj = + obj_desc->common_notify.device_notify; } break; @@ -189,23 +175,25 @@ acpi_ev_queue_notify_request ( /* If there is any handler to run, schedule the dispatcher */ - if ((acpi_gbl_system_notify.handler && (notify_value <= ACPI_MAX_SYS_NOTIFY)) || - (acpi_gbl_device_notify.handler && (notify_value > ACPI_MAX_SYS_NOTIFY)) || - handler_obj) { - notify_info = acpi_ut_create_generic_state (); + if ((acpi_gbl_system_notify.handler + && (notify_value <= ACPI_MAX_SYS_NOTIFY)) + || (acpi_gbl_device_notify.handler + && (notify_value > ACPI_MAX_SYS_NOTIFY)) || handler_obj) { + notify_info = acpi_ut_create_generic_state(); if (!notify_info) { return (AE_NO_MEMORY); } notify_info->common.data_type = ACPI_DESC_TYPE_STATE_NOTIFY; - notify_info->notify.node = node; - notify_info->notify.value = (u16) notify_value; + notify_info->notify.node = node; + notify_info->notify.value = (u16) notify_value; notify_info->notify.handler_obj = handler_obj; - status = acpi_os_queue_for_execution (OSD_PRIORITY_HIGH, - acpi_ev_notify_dispatch, notify_info); - if (ACPI_FAILURE (status)) { - acpi_ut_delete_generic_state (notify_info); + status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH, + acpi_ev_notify_dispatch, + notify_info); + if (ACPI_FAILURE(status)) { + acpi_ut_delete_generic_state(notify_info); } } @@ -214,15 +202,15 @@ acpi_ev_queue_notify_request ( * There is no per-device notify handler for this device. * This may or may not be a problem. */ - ACPI_DEBUG_PRINT ((ACPI_DB_INFO, - "No notify handler for Notify(%4.4s, %X) node %p\n", - acpi_ut_get_node_name (node), notify_value, node)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "No notify handler for Notify(%4.4s, %X) node %p\n", + acpi_ut_get_node_name(node), notify_value, + node)); } return (status); } - /******************************************************************************* * * FUNCTION: acpi_ev_notify_dispatch @@ -236,18 +224,15 @@ acpi_ev_queue_notify_request ( * ******************************************************************************/ -static void ACPI_SYSTEM_XFACE -acpi_ev_notify_dispatch ( - void *context) +static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) { - union acpi_generic_state *notify_info = (union acpi_generic_state *) context; - acpi_notify_handler global_handler = NULL; - void *global_context = NULL; - union acpi_operand_object *handler_obj; - - - ACPI_FUNCTION_ENTRY (); + union acpi_generic_state *notify_info = + (union acpi_generic_state *)context; + acpi_notify_handler global_handler = NULL; + void *global_context = NULL; + union acpi_operand_object *handler_obj; + ACPI_FUNCTION_ENTRY(); /* * We will invoke a global notify handler if installed. @@ -261,8 +246,7 @@ acpi_ev_notify_dispatch ( global_handler = acpi_gbl_system_notify.handler; global_context = acpi_gbl_system_notify.context; } - } - else { + } else { /* Global driver notification handler */ if (acpi_gbl_device_notify.handler) { @@ -274,25 +258,24 @@ acpi_ev_notify_dispatch ( /* Invoke the system handler first, if present */ if (global_handler) { - global_handler (notify_info->notify.node, notify_info->notify.value, - global_context); + global_handler(notify_info->notify.node, + notify_info->notify.value, global_context); } /* Now invoke the per-device handler, if present */ handler_obj = notify_info->notify.handler_obj; if (handler_obj) { - handler_obj->notify.handler (notify_info->notify.node, - notify_info->notify.value, - handler_obj->notify.context); + handler_obj->notify.handler(notify_info->notify.node, + notify_info->notify.value, + handler_obj->notify.context); } /* All done with the info object */ - acpi_ut_delete_generic_state (notify_info); + acpi_ut_delete_generic_state(notify_info); } - /******************************************************************************* * * FUNCTION: acpi_ev_global_lock_thread @@ -307,27 +290,24 @@ acpi_ev_notify_dispatch ( * ******************************************************************************/ -static void ACPI_SYSTEM_XFACE -acpi_ev_global_lock_thread ( - void *context) +static void ACPI_SYSTEM_XFACE acpi_ev_global_lock_thread(void *context) { - acpi_status status; - + acpi_status status; /* Signal threads that are waiting for the lock */ if (acpi_gbl_global_lock_thread_count) { /* Send sufficient units to the semaphore */ - status = acpi_os_signal_semaphore (acpi_gbl_global_lock_semaphore, - acpi_gbl_global_lock_thread_count); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (("Could not signal Global Lock semaphore\n")); + status = + acpi_os_signal_semaphore(acpi_gbl_global_lock_semaphore, + acpi_gbl_global_lock_thread_count); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Could not signal Global Lock semaphore\n")); } } } - /******************************************************************************* * * FUNCTION: acpi_ev_global_lock_handler @@ -342,20 +322,17 @@ acpi_ev_global_lock_thread ( * ******************************************************************************/ -static u32 -acpi_ev_global_lock_handler ( - void *context) +static u32 acpi_ev_global_lock_handler(void *context) { - u8 acquired = FALSE; - acpi_status status; - + u8 acquired = FALSE; + acpi_status status; /* * Attempt to get the lock * If we don't get it now, it will be marked pending and we will * take another interrupt when it becomes free. */ - ACPI_ACQUIRE_GLOBAL_LOCK (acpi_gbl_common_fACS.global_lock, acquired); + ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, acquired); if (acquired) { /* Got the lock, now wake all threads waiting for it */ @@ -363,11 +340,11 @@ acpi_ev_global_lock_handler ( /* Run the Global Lock thread which will signal all waiting threads */ - status = acpi_os_queue_for_execution (OSD_PRIORITY_HIGH, - acpi_ev_global_lock_thread, context); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (("Could not queue Global Lock thread, %s\n", - acpi_format_exception (status))); + status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH, + acpi_ev_global_lock_thread, + context); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Could not queue Global Lock thread, %s\n", acpi_format_exception(status))); return (ACPI_INTERRUPT_NOT_HANDLED); } @@ -376,7 +353,6 @@ acpi_ev_global_lock_handler ( return (ACPI_INTERRUPT_HANDLED); } - /******************************************************************************* * * FUNCTION: acpi_ev_init_global_lock_handler @@ -389,19 +365,16 @@ acpi_ev_global_lock_handler ( * ******************************************************************************/ -acpi_status -acpi_ev_init_global_lock_handler ( - void) +acpi_status acpi_ev_init_global_lock_handler(void) { - acpi_status status; - - - ACPI_FUNCTION_TRACE ("ev_init_global_lock_handler"); + acpi_status status; + ACPI_FUNCTION_TRACE("ev_init_global_lock_handler"); acpi_gbl_global_lock_present = TRUE; - status = acpi_install_fixed_event_handler (ACPI_EVENT_GLOBAL, - acpi_ev_global_lock_handler, NULL); + status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, + acpi_ev_global_lock_handler, + NULL); /* * If the global lock does not exist on this platform, the attempt @@ -411,14 +384,15 @@ acpi_ev_init_global_lock_handler ( * with an error. */ if (status == AE_NO_HARDWARE_RESPONSE) { + ACPI_REPORT_ERROR(("No response from Global Lock hardware, disabling lock\n")); + acpi_gbl_global_lock_present = FALSE; status = AE_OK; } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /****************************************************************************** * * FUNCTION: acpi_ev_acquire_global_lock @@ -431,22 +405,18 @@ acpi_ev_init_global_lock_handler ( * *****************************************************************************/ -acpi_status -acpi_ev_acquire_global_lock ( - u16 timeout) +acpi_status acpi_ev_acquire_global_lock(u16 timeout) { - acpi_status status = AE_OK; - u8 acquired = FALSE; - - - ACPI_FUNCTION_TRACE ("ev_acquire_global_lock"); + acpi_status status = AE_OK; + u8 acquired = FALSE; + ACPI_FUNCTION_TRACE("ev_acquire_global_lock"); #ifndef ACPI_APPLICATION /* Make sure that we actually have a global lock */ if (!acpi_gbl_global_lock_present) { - return_ACPI_STATUS (AE_NO_GLOBAL_LOCK); + return_ACPI_STATUS(AE_NO_GLOBAL_LOCK); } #endif @@ -459,37 +429,37 @@ acpi_ev_acquire_global_lock ( * we are done */ if (acpi_gbl_global_lock_acquired) { - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } /* We must acquire the actual hardware lock */ - ACPI_ACQUIRE_GLOBAL_LOCK (acpi_gbl_common_fACS.global_lock, acquired); + ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, acquired); if (acquired) { - /* We got the lock */ + /* We got the lock */ - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Acquired the HW Global Lock\n")); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Acquired the HW Global Lock\n")); acpi_gbl_global_lock_acquired = TRUE; - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } /* * Did not get the lock. The pending bit was set above, and we must now * wait until we get the global lock released interrupt. */ - ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Waiting for the HW Global Lock\n")); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Waiting for the HW Global Lock\n")); /* * Acquire the global lock semaphore first. * Since this wait will block, we must release the interpreter */ - status = acpi_ex_system_wait_semaphore (acpi_gbl_global_lock_semaphore, - timeout); - return_ACPI_STATUS (status); + status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore, + timeout); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ev_release_global_lock @@ -502,21 +472,16 @@ acpi_ev_acquire_global_lock ( * ******************************************************************************/ -acpi_status -acpi_ev_release_global_lock ( - void) +acpi_status acpi_ev_release_global_lock(void) { - u8 pending = FALSE; - acpi_status status = AE_OK; - - - ACPI_FUNCTION_TRACE ("ev_release_global_lock"); + u8 pending = FALSE; + acpi_status status = AE_OK; + ACPI_FUNCTION_TRACE("ev_release_global_lock"); if (!acpi_gbl_global_lock_thread_count) { - ACPI_REPORT_WARNING(( - "Cannot release HW Global Lock, it has not been acquired\n")); - return_ACPI_STATUS (AE_NOT_ACQUIRED); + ACPI_REPORT_WARNING(("Cannot release HW Global Lock, it has not been acquired\n")); + return_ACPI_STATUS(AE_NOT_ACQUIRED); } /* One fewer thread has the global lock */ @@ -525,14 +490,14 @@ acpi_ev_release_global_lock ( if (acpi_gbl_global_lock_thread_count) { /* There are still some threads holding the lock, cannot release */ - return_ACPI_STATUS (AE_OK); + return_ACPI_STATUS(AE_OK); } /* * No more threads holding lock, we can do the actual hardware * release */ - ACPI_RELEASE_GLOBAL_LOCK (acpi_gbl_common_fACS.global_lock, pending); + ACPI_RELEASE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, pending); acpi_gbl_global_lock_acquired = FALSE; /* @@ -540,14 +505,13 @@ acpi_ev_release_global_lock ( * register */ if (pending) { - status = acpi_set_register (ACPI_BITREG_GLOBAL_LOCK_RELEASE, - 1, ACPI_MTX_LOCK); + status = acpi_set_register(ACPI_BITREG_GLOBAL_LOCK_RELEASE, + 1, ACPI_MTX_LOCK); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /****************************************************************************** * * FUNCTION: acpi_ev_terminate @@ -560,16 +524,12 @@ acpi_ev_release_global_lock ( * ******************************************************************************/ -void -acpi_ev_terminate ( - void) +void acpi_ev_terminate(void) { - acpi_native_uint i; - acpi_status status; - - - ACPI_FUNCTION_TRACE ("ev_terminate"); + acpi_native_uint i; + acpi_status status; + ACPI_FUNCTION_TRACE("ev_terminate"); if (acpi_gbl_events_initialized) { /* @@ -580,38 +540,39 @@ acpi_ev_terminate ( /* Disable all fixed events */ for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { - status = acpi_disable_event ((u32) i, 0); - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Could not disable fixed event %d\n", (u32) i)); + status = acpi_disable_event((u32) i, 0); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Could not disable fixed event %d\n", + (u32) i)); } } /* Disable all GPEs in all GPE blocks */ - status = acpi_ev_walk_gpe_list (acpi_hw_disable_gpe_block, ACPI_NOT_ISR); + status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block); /* Remove SCI handler */ - status = acpi_ev_remove_sci_handler (); + status = acpi_ev_remove_sci_handler(); if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, - "Could not remove SCI handler\n")); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Could not remove SCI handler\n")); } } /* Deallocate all handler objects installed within GPE info structs */ - status = acpi_ev_walk_gpe_list (acpi_ev_delete_gpe_handlers, ACPI_NOT_ISR); + status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers); /* Return to original mode if necessary */ if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) { - status = acpi_disable (); - if (ACPI_FAILURE (status)) { - ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "acpi_disable failed\n")); + status = acpi_disable(); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "acpi_disable failed\n")); } } return_VOID; } - |