diff options
Diffstat (limited to 'drivers/acpi/acpica/evgpe.c')
| -rw-r--r-- | drivers/acpi/acpica/evgpe.c | 153 |
1 files changed, 16 insertions, 137 deletions
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index afacf4416c73..30ca3a30ef00 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -54,54 +54,9 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context); /******************************************************************************* * - * FUNCTION: acpi_ev_set_gpe_type - * - * PARAMETERS: gpe_event_info - GPE to set - * Type - New type - * - * RETURN: Status - * - * DESCRIPTION: Sets the new type for the GPE (wake, run, or wake/run) - * - ******************************************************************************/ - -acpi_status -acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_set_gpe_type); - - /* Validate type and update register enable masks */ - - switch (type) { - case ACPI_GPE_TYPE_WAKE: - case ACPI_GPE_TYPE_RUNTIME: - case ACPI_GPE_TYPE_WAKE_RUN: - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Disable the GPE if currently enabled */ - - status = acpi_ev_disable_gpe(gpe_event_info); - - /* Clear the type bits and insert the new Type */ - - gpe_event_info->flags &= ~ACPI_GPE_TYPE_MASK; - gpe_event_info->flags |= type; - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * * FUNCTION: acpi_ev_update_gpe_enable_masks * * PARAMETERS: gpe_event_info - GPE to update - * Type - What to do: ACPI_GPE_DISABLE or - * ACPI_GPE_ENABLE * * RETURN: Status * @@ -110,8 +65,7 @@ acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) ******************************************************************************/ acpi_status -acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, - u8 type) +acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) { struct acpi_gpe_register_info *gpe_register_info; u8 register_bit; @@ -127,37 +81,14 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, (1 << (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number)); - /* 1) Disable case. Simply clear all enable bits */ - - if (type == ACPI_GPE_DISABLE) { - ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, - register_bit); - ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - return_ACPI_STATUS(AE_OK); - } - - /* 2) Enable case. Set/Clear the appropriate enable bits */ + ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, register_bit); + ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); - ACPI_CLEAR_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - case ACPI_GPE_TYPE_RUNTIME: - ACPI_CLEAR_BIT(gpe_register_info->enable_for_wake, - register_bit); + if (gpe_event_info->runtime_count) ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); - break; - case ACPI_GPE_TYPE_WAKE_RUN: + if (gpe_event_info->wakeup_count) ACPI_SET_BIT(gpe_register_info->enable_for_wake, register_bit); - ACPI_SET_BIT(gpe_register_info->enable_for_run, register_bit); - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } return_ACPI_STATUS(AE_OK); } @@ -186,47 +117,20 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, /* Make sure HW enable masks are updated */ - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE); - if (ACPI_FAILURE(status)) { + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_FAILURE(status)) return_ACPI_STATUS(status); - } /* Mark wake-enabled or HW enable, or both */ - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - - /*lint -fallthrough */ - - case ACPI_GPE_TYPE_RUNTIME: - - ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); - - if (write_to_hardware) { - - /* Clear the GPE (of stale events), then enable it */ - - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Enable the requested runtime GPE */ - - status = acpi_hw_write_gpe_enable_reg(gpe_event_info); - } - break; + if (gpe_event_info->runtime_count && write_to_hardware) { + /* Clear the GPE (of stale events), then enable it */ + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); + /* Enable the requested runtime GPE */ + status = acpi_hw_write_gpe_enable_reg(gpe_event_info); } return_ACPI_STATUS(AE_OK); @@ -252,34 +156,9 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) /* Make sure HW enable masks are updated */ - status = - acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_DISABLE); - if (ACPI_FAILURE(status)) { + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_FAILURE(status)) return_ACPI_STATUS(status); - } - - /* Clear the appropriate enabled flags for this GPE */ - - switch (gpe_event_info->flags & ACPI_GPE_TYPE_MASK) { - case ACPI_GPE_TYPE_WAKE: - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - break; - - case ACPI_GPE_TYPE_WAKE_RUN: - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_WAKE_ENABLED); - - /* fallthrough */ - - case ACPI_GPE_TYPE_RUNTIME: - - /* Disable the requested runtime GPE */ - - ACPI_CLEAR_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); - break; - - default: - break; - } /* * Even if we don't know the GPE type, make sure that we always |
