diff options
Diffstat (limited to 'drivers/acpi/hardware/hwgpe.c')
| -rw-r--r-- | drivers/acpi/hardware/hwgpe.c | 220 |
1 files changed, 98 insertions, 122 deletions
diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c index 9ac1d639bf5..5c8e5dfd024 100644 --- a/drivers/acpi/hardware/hwgpe.c +++ b/drivers/acpi/hardware/hwgpe.c @@ -46,8 +46,12 @@ #include <acpi/acevents.h> #define _COMPONENT ACPI_HARDWARE - ACPI_MODULE_NAME ("hwgpe") +ACPI_MODULE_NAME("hwgpe") +/* Local prototypes */ +static acpi_status +acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block); /****************************************************************************** * @@ -64,15 +68,12 @@ ******************************************************************************/ acpi_status -acpi_hw_write_gpe_enable_reg ( - struct acpi_gpe_event_info *gpe_event_info) +acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info) { - struct acpi_gpe_register_info *gpe_register_info; - acpi_status status; - - - ACPI_FUNCTION_ENTRY (); + struct acpi_gpe_register_info *gpe_register_info; + acpi_status status; + ACPI_FUNCTION_ENTRY(); /* Get the info block for the entire GPE register */ @@ -83,13 +84,12 @@ acpi_hw_write_gpe_enable_reg ( /* Write the entire GPE (runtime) enable register */ - status = acpi_hw_low_level_write (8, gpe_register_info->enable_for_run, - &gpe_register_info->enable_address); + status = acpi_hw_low_level_write(8, gpe_register_info->enable_for_run, + &gpe_register_info->enable_address); return (status); } - /****************************************************************************** * * FUNCTION: acpi_hw_clear_gpe @@ -102,27 +102,23 @@ acpi_hw_write_gpe_enable_reg ( * ******************************************************************************/ -acpi_status -acpi_hw_clear_gpe ( - struct acpi_gpe_event_info *gpe_event_info) +acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) { - acpi_status status; - - - ACPI_FUNCTION_ENTRY (); + acpi_status status; + ACPI_FUNCTION_ENTRY(); /* * Write a one to the appropriate bit in the status register to * clear this GPE. */ - status = acpi_hw_low_level_write (8, gpe_event_info->register_bit, - &gpe_event_info->register_info->status_address); + status = acpi_hw_low_level_write(8, gpe_event_info->register_bit, + &gpe_event_info->register_info-> + status_address); return (status); } - /****************************************************************************** * * FUNCTION: acpi_hw_get_gpe_status @@ -135,21 +131,19 @@ acpi_hw_clear_gpe ( * DESCRIPTION: Return the status of a single GPE. * ******************************************************************************/ + #ifdef ACPI_FUTURE_USAGE acpi_status -acpi_hw_get_gpe_status ( - struct acpi_gpe_event_info *gpe_event_info, - acpi_event_status *event_status) +acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, + acpi_event_status * event_status) { - u32 in_byte; - u8 register_bit; - struct acpi_gpe_register_info *gpe_register_info; - acpi_status status; - acpi_event_status local_event_status = 0; - - - ACPI_FUNCTION_ENTRY (); + u32 in_byte; + u8 register_bit; + struct acpi_gpe_register_info *gpe_register_info; + acpi_status status; + acpi_event_status local_event_status = 0; + ACPI_FUNCTION_ENTRY(); if (!event_status) { return (AE_BAD_PARAMETER); @@ -177,8 +171,10 @@ acpi_hw_get_gpe_status ( /* GPE currently active (status bit == 1)? */ - status = acpi_hw_low_level_read (8, &in_byte, &gpe_register_info->status_address); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_read(8, &in_byte, + &gpe_register_info->status_address); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -190,12 +186,10 @@ acpi_hw_get_gpe_status ( (*event_status) = local_event_status; - -unlock_and_exit: + unlock_and_exit: return (status); } -#endif /* ACPI_FUTURE_USAGE */ - +#endif /* ACPI_FUTURE_USAGE */ /****************************************************************************** * @@ -206,27 +200,26 @@ unlock_and_exit: * * RETURN: Status * - * DESCRIPTION: Disable all GPEs within a GPE block + * DESCRIPTION: Disable all GPEs within a single GPE block * ******************************************************************************/ acpi_status -acpi_hw_disable_gpe_block ( - struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block) +acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info, + struct acpi_gpe_block_info * gpe_block) { - u32 i; - acpi_status status; - + u32 i; + acpi_status status; /* Examine each GPE Register within the block */ for (i = 0; i < gpe_block->register_count; i++) { /* Disable all GPEs in this register */ - status = acpi_hw_low_level_write (8, 0x00, - &gpe_block->register_info[i].enable_address); - if (ACPI_FAILURE (status)) { + status = acpi_hw_low_level_write(8, 0x00, + &gpe_block->register_info[i]. + enable_address); + if (ACPI_FAILURE(status)) { return (status); } } @@ -234,7 +227,6 @@ acpi_hw_disable_gpe_block ( return (AE_OK); } - /****************************************************************************** * * FUNCTION: acpi_hw_clear_gpe_block @@ -244,27 +236,26 @@ acpi_hw_disable_gpe_block ( * * RETURN: Status * - * DESCRIPTION: Clear status bits for all GPEs within a GPE block + * DESCRIPTION: Clear status bits for all GPEs within a single GPE block * ******************************************************************************/ acpi_status -acpi_hw_clear_gpe_block ( - struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block) +acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info, + struct acpi_gpe_block_info * gpe_block) { - u32 i; - acpi_status status; - + u32 i; + acpi_status status; /* Examine each GPE Register within the block */ for (i = 0; i < gpe_block->register_count; i++) { /* Clear status on all GPEs in this register */ - status = acpi_hw_low_level_write (8, 0xFF, - &gpe_block->register_info[i].status_address); - if (ACPI_FAILURE (status)) { + status = acpi_hw_low_level_write(8, 0xFF, + &gpe_block->register_info[i]. + status_address); + if (ACPI_FAILURE(status)) { return (status); } } @@ -272,7 +263,6 @@ acpi_hw_clear_gpe_block ( return (AE_OK); } - /****************************************************************************** * * FUNCTION: acpi_hw_enable_runtime_gpe_block @@ -282,19 +272,17 @@ acpi_hw_clear_gpe_block ( * * RETURN: Status * - * DESCRIPTION: Enable all "runtime" GPEs within a GPE block. (Includes - * combination wake/run GPEs.) + * DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes + * combination wake/run GPEs. * ******************************************************************************/ acpi_status -acpi_hw_enable_runtime_gpe_block ( - struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block) +acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info, + struct acpi_gpe_block_info * gpe_block) { - u32 i; - acpi_status status; - + u32 i; + acpi_status status; /* NOTE: assumes that all GPEs are currently disabled */ @@ -307,9 +295,13 @@ acpi_hw_enable_runtime_gpe_block ( /* Enable all "runtime" GPEs in this register */ - status = acpi_hw_low_level_write (8, gpe_block->register_info[i].enable_for_run, - &gpe_block->register_info[i].enable_address); - if (ACPI_FAILURE (status)) { + status = + acpi_hw_low_level_write(8, + gpe_block->register_info[i]. + enable_for_run, + &gpe_block->register_info[i]. + enable_address); + if (ACPI_FAILURE(status)) { return (status); } } @@ -317,7 +309,6 @@ acpi_hw_enable_runtime_gpe_block ( return (AE_OK); } - /****************************************************************************** * * FUNCTION: acpi_hw_enable_wakeup_gpe_block @@ -327,19 +318,17 @@ acpi_hw_enable_runtime_gpe_block ( * * RETURN: Status * - * DESCRIPTION: Enable all "wake" GPEs within a GPE block. (Includes - * combination wake/run GPEs.) + * DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes + * combination wake/run GPEs. * ******************************************************************************/ -acpi_status -acpi_hw_enable_wakeup_gpe_block ( - struct acpi_gpe_xrupt_info *gpe_xrupt_info, - struct acpi_gpe_block_info *gpe_block) +static acpi_status +acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, + struct acpi_gpe_block_info *gpe_block) { - u32 i; - acpi_status status; - + u32 i; + acpi_status status; /* Examine each GPE Register within the block */ @@ -350,9 +339,12 @@ acpi_hw_enable_wakeup_gpe_block ( /* Enable all "wake" GPEs in this register */ - status = acpi_hw_low_level_write (8, gpe_block->register_info[i].enable_for_wake, - &gpe_block->register_info[i].enable_address); - if (ACPI_FAILURE (status)) { + status = acpi_hw_low_level_write(8, + gpe_block->register_info[i]. + enable_for_wake, + &gpe_block->register_info[i]. + enable_address); + if (ACPI_FAILURE(status)) { return (status); } } @@ -360,85 +352,69 @@ acpi_hw_enable_wakeup_gpe_block ( return (AE_OK); } - /****************************************************************************** * * FUNCTION: acpi_hw_disable_all_gpes * - * PARAMETERS: Flags - ACPI_NOT_ISR or ACPI_ISR + * PARAMETERS: None * * RETURN: Status * - * DESCRIPTION: Disable and clear all GPEs + * DESCRIPTION: Disable and clear all GPEs in all GPE blocks * ******************************************************************************/ -acpi_status -acpi_hw_disable_all_gpes ( - u32 flags) +acpi_status acpi_hw_disable_all_gpes(void) { - acpi_status status; - + acpi_status status; - ACPI_FUNCTION_TRACE ("hw_disable_all_gpes"); + ACPI_FUNCTION_TRACE("hw_disable_all_gpes"); - - status = acpi_ev_walk_gpe_list (acpi_hw_disable_gpe_block, flags); - status = acpi_ev_walk_gpe_list (acpi_hw_clear_gpe_block, flags); - return_ACPI_STATUS (status); + status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block); + status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block); + return_ACPI_STATUS(status); } - /****************************************************************************** * * FUNCTION: acpi_hw_enable_all_runtime_gpes * - * PARAMETERS: Flags - ACPI_NOT_ISR or ACPI_ISR + * PARAMETERS: None * * RETURN: Status * - * DESCRIPTION: Enable all GPEs of the given type + * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks * ******************************************************************************/ -acpi_status -acpi_hw_enable_all_runtime_gpes ( - u32 flags) +acpi_status acpi_hw_enable_all_runtime_gpes(void) { - acpi_status status; - + acpi_status status; - ACPI_FUNCTION_TRACE ("hw_enable_all_runtime_gpes"); + ACPI_FUNCTION_TRACE("hw_enable_all_runtime_gpes"); - - status = acpi_ev_walk_gpe_list (acpi_hw_enable_runtime_gpe_block, flags); - return_ACPI_STATUS (status); + status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block); + return_ACPI_STATUS(status); } - /****************************************************************************** * * FUNCTION: acpi_hw_enable_all_wakeup_gpes * - * PARAMETERS: Flags - ACPI_NOT_ISR or ACPI_ISR + * PARAMETERS: None * * RETURN: Status * - * DESCRIPTION: Enable all GPEs of the given type + * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks * ******************************************************************************/ -acpi_status -acpi_hw_enable_all_wakeup_gpes ( - u32 flags) +acpi_status acpi_hw_enable_all_wakeup_gpes(void) { - acpi_status status; - + acpi_status status; - ACPI_FUNCTION_TRACE ("hw_enable_all_wakeup_gpes"); + ACPI_FUNCTION_TRACE("hw_enable_all_wakeup_gpes"); - - status = acpi_ev_walk_gpe_list (acpi_hw_enable_wakeup_gpe_block, flags); - return_ACPI_STATUS (status); + status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block); + return_ACPI_STATUS(status); } - |