diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/acpica/acdebug.h | 3 | ||||
| -rw-r--r-- | drivers/acpi/acpica/acevents.h | 6 | ||||
| -rw-r--r-- | drivers/acpi/acpica/acglobal.h | 1 | ||||
| -rw-r--r-- | drivers/acpi/acpica/aclocal.h | 8 | ||||
| -rw-r--r-- | drivers/acpi/acpica/evgpeutil.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/acpica/evmisc.c | 14 | ||||
| -rw-r--r-- | drivers/acpi/acpica/evsci.c | 80 | ||||
| -rw-r--r-- | drivers/acpi/acpica/evxface.c | 139 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utglobal.c | 3 |
9 files changed, 236 insertions, 20 deletions
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index 9feba08c29fe..30c2d6911386 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -113,11 +113,12 @@ void acpi_db_display_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)) + ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void)) /* * dbconvert - miscellaneous conversion routines */ - acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value); +acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value); acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object); diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index ab0e97710381..3ae5fd02ae64 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -242,11 +242,11 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, */ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context); -u32 acpi_ev_install_sci_handler(void); +u32 acpi_ev_sci_dispatch(void); -acpi_status acpi_ev_remove_sci_handler(void); +u32 acpi_ev_install_sci_handler(void); -u32 acpi_ev_initialize_SCI(u32 program_SCI); +acpi_status acpi_ev_remove_all_sci_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_terminate(void)) #endif /* __ACEVENTS_H__ */ diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index c9ad2e1f1ee1..0fba431f4fcb 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -269,6 +269,7 @@ ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler; ACPI_EXTERN void *acpi_gbl_table_handler_context; ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; +ACPI_EXTERN struct acpi_sci_handler_info *acpi_gbl_sci_handler_list; /* Owner ID support */ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 0ed00669cd21..be9e30ee6048 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -398,6 +398,14 @@ struct acpi_simple_repair_info { * ****************************************************************************/ +/* Dispatch info for each host-installed SCI handler */ + +struct acpi_sci_handler_info { + struct acpi_sci_handler_info *next; + acpi_sci_handler address; /* Address of handler */ + void *context; /* Context to be passed to handler */ +}; + /* Dispatch info for each GPE -- either a method or handler, cannot be both */ struct acpi_gpe_handler_info { diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index b24dbb80fab8..d52339090b60 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -196,7 +196,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * * FUNCTION: acpi_ev_get_gpe_xrupt_block * - * PARAMETERS: interrupt_number - Interrupt for a GPE block + * PARAMETERS: interrupt_number - Interrupt for a GPE block * * RETURN: A GPE interrupt block * diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index 1b111ef74903..a5687540e9a6 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -264,13 +264,6 @@ void acpi_ev_terminate(void) status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); - /* Remove SCI handler */ - - status = acpi_ev_remove_sci_handler(); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); - } - status = acpi_ev_remove_global_lock_handler(); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, @@ -280,6 +273,13 @@ void acpi_ev_terminate(void) acpi_gbl_events_initialized = FALSE; } + /* Remove SCI handlers */ + + status = acpi_ev_remove_all_sci_handlers(); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); + } + /* Deallocate all handler objects installed within GPE info structs */ status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL); diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c index b905acf7aacd..b2f0fb2f57b4 100644 --- a/drivers/acpi/acpica/evsci.c +++ b/drivers/acpi/acpica/evsci.c @@ -54,6 +54,52 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context); /******************************************************************************* * + * FUNCTION: acpi_ev_sci_dispatch + * + * PARAMETERS: None + * + * RETURN: Status code indicates whether interrupt was handled. + * + * DESCRIPTION: Dispatch the SCI to all host-installed SCI handlers. + * + ******************************************************************************/ + +u32 acpi_ev_sci_dispatch(void) +{ + struct acpi_sci_handler_info *sci_handler; + acpi_cpu_flags flags; + u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; + + ACPI_FUNCTION_NAME(ev_sci_dispatch); + + /* Are there any host-installed SCI handlers? */ + + if (!acpi_gbl_sci_handler_list) { + return (int_status); + } + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Invoke all host-installed SCI handlers */ + + sci_handler = acpi_gbl_sci_handler_list; + while (sci_handler) { + + /* Invoke the installed handler (at interrupt level) */ + + int_status |= sci_handler->address((u32)acpi_gbl_FADT. + sci_interrupt, + sci_handler->context); + + sci_handler = sci_handler->next; + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return (int_status); +} + +/******************************************************************************* + * * FUNCTION: acpi_ev_sci_xrupt_handler * * PARAMETERS: context - Calling Context @@ -89,6 +135,10 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context) */ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); + /* Invoke all host-installed SCI handlers */ + + interrupt_handled |= acpi_ev_sci_dispatch(); + return_UINT32(interrupt_handled); } @@ -112,14 +162,13 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context) ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler); /* - * We are guaranteed by the ACPI CA initialization/shutdown code that + * We are guaranteed by the ACPICA initialization/shutdown code that * if this interrupt handler is installed, ACPI is enabled. */ /* GPEs: Check for and dispatch any GPEs that have occurred */ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); - return_UINT32(interrupt_handled); } @@ -150,15 +199,15 @@ u32 acpi_ev_install_sci_handler(void) /****************************************************************************** * - * FUNCTION: acpi_ev_remove_sci_handler + * FUNCTION: acpi_ev_remove_all_sci_handlers * * PARAMETERS: none * - * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not + * RETURN: AE_OK if handler uninstalled, AE_ERROR if handler was not * installed to begin with * * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be - * taken. + * taken. Remove all host-installed SCI handlers. * * Note: It doesn't seem important to disable all events or set the event * enable registers to their original values. The OS should disable @@ -167,11 +216,13 @@ u32 acpi_ev_install_sci_handler(void) * ******************************************************************************/ -acpi_status acpi_ev_remove_sci_handler(void) +acpi_status acpi_ev_remove_all_sci_handlers(void) { + struct acpi_sci_handler_info *sci_handler; + acpi_cpu_flags flags; acpi_status status; - ACPI_FUNCTION_TRACE(ev_remove_sci_handler); + ACPI_FUNCTION_TRACE(ev_remove_all_sci_handlers); /* Just let the OS remove the handler and disable the level */ @@ -179,6 +230,21 @@ acpi_status acpi_ev_remove_sci_handler(void) acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt, acpi_ev_sci_xrupt_handler); + if (!acpi_gbl_sci_handler_list) { + return (status); + } + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Free all host-installed SCI handlers */ + + while (acpi_gbl_sci_handler_list) { + sci_handler = acpi_gbl_sci_handler_list; + acpi_gbl_sci_handler_list = sci_handler->next; + ACPI_FREE(sci_handler); + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index ca5fba99c33b..6f56146a6f88 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -385,6 +385,144 @@ ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) #if (!ACPI_REDUCED_HARDWARE) /******************************************************************************* * + * FUNCTION: acpi_install_sci_handler + * + * PARAMETERS: address - Address of the handler + * context - Value passed to the handler on each SCI + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for a System Control Interrupt. + * + ******************************************************************************/ +acpi_status acpi_install_sci_handler(acpi_sci_handler address, void *context) +{ + struct acpi_sci_handler_info *new_sci_handler; + struct acpi_sci_handler_info *sci_handler; + acpi_cpu_flags flags; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_sci_handler); + + if (!address) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Allocate and init a handler object */ + + new_sci_handler = ACPI_ALLOCATE(sizeof(struct acpi_sci_handler_info)); + if (!new_sci_handler) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + new_sci_handler->address = address; + new_sci_handler->context = context; + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Lock list during installation */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + sci_handler = acpi_gbl_sci_handler_list; + + /* Ensure handler does not already exist */ + + while (sci_handler) { + if (address == sci_handler->address) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + + sci_handler = sci_handler->next; + } + + /* Install the new handler into the global list (at head) */ + + new_sci_handler->next = acpi_gbl_sci_handler_list; + acpi_gbl_sci_handler_list = new_sci_handler; + + unlock_and_exit: + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + exit: + if (ACPI_FAILURE(status)) { + ACPI_FREE(new_sci_handler); + } + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_remove_sci_handler + * + * PARAMETERS: address - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Remove a handler for a System Control Interrupt. + * + ******************************************************************************/ + +acpi_status acpi_remove_sci_handler(acpi_sci_handler address) +{ + struct acpi_sci_handler_info *prev_sci_handler; + struct acpi_sci_handler_info *next_sci_handler; + acpi_cpu_flags flags; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_remove_sci_handler); + + if (!address) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Remove the SCI handler with lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + prev_sci_handler = NULL; + next_sci_handler = acpi_gbl_sci_handler_list; + while (next_sci_handler) { + if (next_sci_handler->address == address) { + + /* Unlink and free the SCI handler info block */ + + if (prev_sci_handler) { + prev_sci_handler->next = next_sci_handler->next; + } else { + acpi_gbl_sci_handler_list = + next_sci_handler->next; + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + ACPI_FREE(next_sci_handler); + goto unlock_and_exit; + } + + prev_sci_handler = next_sci_handler; + next_sci_handler = next_sci_handler->next; + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + status = AE_NOT_EXIST; + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * * FUNCTION: acpi_install_global_event_handler * * PARAMETERS: handler - Pointer to the global event handler function @@ -398,6 +536,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) * Can be used to update event counters, etc. * ******************************************************************************/ + acpi_status acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context) { diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index d6f26bf8a062..046d5b059c07 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -291,7 +291,7 @@ acpi_status acpi_ut_init_globals(void) #if (!ACPI_REDUCED_HARDWARE) - /* GPE support */ + /* GPE/SCI support */ acpi_gbl_all_gpes_initialized = FALSE; acpi_gbl_gpe_xrupt_list_head = NULL; @@ -300,6 +300,7 @@ acpi_status acpi_ut_init_globals(void) acpi_current_gpe_count = 0; acpi_gbl_global_event_handler = NULL; + acpi_gbl_sci_handler_list = NULL; #endif /* !ACPI_REDUCED_HARDWARE */ |