diff options
Diffstat (limited to 'drivers/acpi/events/evevent.c')
| -rw-r--r-- | drivers/acpi/events/evevent.c | 168 |
1 files changed, 66 insertions, 102 deletions
diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c index dd3a72a869f4..842d1e3fb37b 100644 --- a/drivers/acpi/events/evevent.c +++ b/drivers/acpi/events/evevent.c @@ -45,18 +45,12 @@ #include <acpi/acevents.h> #define _COMPONENT ACPI_EVENTS - ACPI_MODULE_NAME ("evevent") +ACPI_MODULE_NAME("evevent") /* Local prototypes */ +static acpi_status acpi_ev_fixed_event_initialize(void); -static acpi_status -acpi_ev_fixed_event_initialize ( - void); - -static u32 -acpi_ev_fixed_event_dispatch ( - u32 event); - +static u32 acpi_ev_fixed_event_dispatch(u32 event); /******************************************************************************* * @@ -70,21 +64,17 @@ acpi_ev_fixed_event_dispatch ( * ******************************************************************************/ -acpi_status -acpi_ev_initialize_events ( - void) +acpi_status acpi_ev_initialize_events(void) { - acpi_status status; - - - ACPI_FUNCTION_TRACE ("ev_initialize_events"); + acpi_status status; + ACPI_FUNCTION_TRACE("ev_initialize_events"); /* Make sure we have ACPI tables */ if (!acpi_gbl_DSDT) { - ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "No ACPI tables present!\n")); - return_ACPI_STATUS (AE_NO_ACPI_TABLES); + ACPI_DEBUG_PRINT((ACPI_DB_WARN, "No ACPI tables present!\n")); + return_ACPI_STATUS(AE_NO_ACPI_TABLES); } /* @@ -92,26 +82,22 @@ acpi_ev_initialize_events ( * enabling SCIs to prevent interrupts from occurring before the handlers are * installed. */ - status = acpi_ev_fixed_event_initialize (); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "Unable to initialize fixed events, %s\n", - acpi_format_exception (status))); - return_ACPI_STATUS (status); + status = acpi_ev_fixed_event_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Unable to initialize fixed events, %s\n", + acpi_format_exception(status))); + return_ACPI_STATUS(status); } - status = acpi_ev_gpe_initialize (); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "Unable to initialize general purpose events, %s\n", - acpi_format_exception (status))); - return_ACPI_STATUS (status); + status = acpi_ev_gpe_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Unable to initialize general purpose events, %s\n", acpi_format_exception(status))); + return_ACPI_STATUS(status); } - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ev_install_xrupt_handlers @@ -124,41 +110,32 @@ acpi_ev_initialize_events ( * ******************************************************************************/ -acpi_status -acpi_ev_install_xrupt_handlers ( - void) +acpi_status acpi_ev_install_xrupt_handlers(void) { - acpi_status status; - - - ACPI_FUNCTION_TRACE ("ev_install_xrupt_handlers"); + acpi_status status; + ACPI_FUNCTION_TRACE("ev_install_xrupt_handlers"); /* Install the SCI handler */ - status = acpi_ev_install_sci_handler (); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "Unable to install System Control Interrupt Handler, %s\n", - acpi_format_exception (status))); - return_ACPI_STATUS (status); + status = acpi_ev_install_sci_handler(); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Unable to install System Control Interrupt Handler, %s\n", acpi_format_exception(status))); + return_ACPI_STATUS(status); } /* Install the handler for the Global Lock */ - status = acpi_ev_init_global_lock_handler (); - if (ACPI_FAILURE (status)) { - ACPI_REPORT_ERROR (( - "Unable to initialize Global Lock handler, %s\n", - acpi_format_exception (status))); - return_ACPI_STATUS (status); + status = acpi_ev_init_global_lock_handler(); + if (ACPI_FAILURE(status)) { + ACPI_REPORT_ERROR(("Unable to initialize Global Lock handler, %s\n", acpi_format_exception(status))); + return_ACPI_STATUS(status); } acpi_gbl_events_initialized = TRUE; - return_ACPI_STATUS (status); + return_ACPI_STATUS(status); } - /******************************************************************************* * * FUNCTION: acpi_ev_fixed_event_initialize @@ -171,13 +148,10 @@ acpi_ev_install_xrupt_handlers ( * ******************************************************************************/ -static acpi_status -acpi_ev_fixed_event_initialize ( - void) +static acpi_status acpi_ev_fixed_event_initialize(void) { - acpi_native_uint i; - acpi_status status; - + acpi_native_uint i; + acpi_status status; /* * Initialize the structure that keeps track of fixed event handlers @@ -190,10 +164,11 @@ acpi_ev_fixed_event_initialize ( /* Enable the fixed event */ if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) { - status = acpi_set_register ( - acpi_gbl_fixed_event_info[i].enable_register_id, - 0, ACPI_MTX_LOCK); - if (ACPI_FAILURE (status)) { + status = + acpi_set_register(acpi_gbl_fixed_event_info[i]. + enable_register_id, 0, + ACPI_MTX_LOCK); + if (ACPI_FAILURE(status)) { return (status); } } @@ -202,7 +177,6 @@ acpi_ev_fixed_event_initialize ( return (AE_OK); } - /******************************************************************************* * * FUNCTION: acpi_ev_fixed_event_detect @@ -215,31 +189,27 @@ acpi_ev_fixed_event_initialize ( * ******************************************************************************/ -u32 -acpi_ev_fixed_event_detect ( - void) +u32 acpi_ev_fixed_event_detect(void) { - u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; - u32 fixed_status; - u32 fixed_enable; - acpi_native_uint i; - - - ACPI_FUNCTION_NAME ("ev_fixed_event_detect"); + u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; + u32 fixed_status; + u32 fixed_enable; + acpi_native_uint i; + ACPI_FUNCTION_NAME("ev_fixed_event_detect"); /* * Read the fixed feature status and enable registers, as all the cases * depend on their values. Ignore errors here. */ - (void) acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS, - &fixed_status); - (void) acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_ENABLE, - &fixed_enable); + (void)acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_STATUS, &fixed_status); + (void)acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, + ACPI_REGISTER_PM1_ENABLE, &fixed_enable); - ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS, - "Fixed Event Block: Enable %08X Status %08X\n", - fixed_enable, fixed_status)); + ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, + "Fixed Event Block: Enable %08X Status %08X\n", + fixed_enable, fixed_status)); /* * Check for all possible Fixed Events and dispatch those that are active @@ -247,18 +217,19 @@ acpi_ev_fixed_event_detect ( for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { /* Both the status and enable bits must be on for this event */ - if ((fixed_status & acpi_gbl_fixed_event_info[i].status_bit_mask) && - (fixed_enable & acpi_gbl_fixed_event_info[i].enable_bit_mask)) { + if ((fixed_status & acpi_gbl_fixed_event_info[i]. + status_bit_mask) + && (fixed_enable & acpi_gbl_fixed_event_info[i]. + enable_bit_mask)) { /* Found an active (signalled) event */ - int_status |= acpi_ev_fixed_event_dispatch ((u32) i); + int_status |= acpi_ev_fixed_event_dispatch((u32) i); } } return (int_status); } - /******************************************************************************* * * FUNCTION: acpi_ev_fixed_event_dispatch @@ -272,39 +243,32 @@ acpi_ev_fixed_event_detect ( * ******************************************************************************/ -static u32 -acpi_ev_fixed_event_dispatch ( - u32 event) +static u32 acpi_ev_fixed_event_dispatch(u32 event) { - - ACPI_FUNCTION_ENTRY (); - + ACPI_FUNCTION_ENTRY(); /* Clear the status bit */ - (void) acpi_set_register (acpi_gbl_fixed_event_info[event].status_register_id, - 1, ACPI_MTX_DO_NOT_LOCK); + (void)acpi_set_register(acpi_gbl_fixed_event_info[event]. + status_register_id, 1, ACPI_MTX_DO_NOT_LOCK); /* * Make sure we've got a handler. If not, report an error. * The event is disabled to prevent further interrupts. */ if (NULL == acpi_gbl_fixed_event_handlers[event].handler) { - (void) acpi_set_register (acpi_gbl_fixed_event_info[event].enable_register_id, - 0, ACPI_MTX_DO_NOT_LOCK); + (void)acpi_set_register(acpi_gbl_fixed_event_info[event]. + enable_register_id, 0, + ACPI_MTX_DO_NOT_LOCK); - ACPI_REPORT_ERROR ( - ("No installed handler for fixed event [%08X]\n", - event)); + ACPI_REPORT_ERROR(("No installed handler for fixed event [%08X]\n", event)); return (ACPI_INTERRUPT_NOT_HANDLED); } /* Invoke the Fixed Event handler */ - return ((acpi_gbl_fixed_event_handlers[event].handler)( - acpi_gbl_fixed_event_handlers[event].context)); + return ((acpi_gbl_fixed_event_handlers[event]. + handler) (acpi_gbl_fixed_event_handlers[event].context)); } - - |