acpi_status
acpi_ev_enable_gpe (
struct acpi_gpe_event_info *gpe_event_info,
u8 write_to_hardware)
{
acpi_status status;
ACPI_FUNCTION_TRACE ("ev_enable_gpe");
/* Make sure HW enable masks are updated */
status = acpi_ev_update_gpe_enable_masks (gpe_event_info, ACPI_GPE_ENABLE);
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;
default:
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info,
u8 write_to_hardware)
{
acpi_status status;
ACPI_FUNCTION_TRACE(ev_enable_gpe);
status =
acpi_ev_update_gpe_enable_masks(gpe_event_info, ACPI_GPE_ENABLE);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
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);
case ACPI_GPE_TYPE_RUNTIME:
ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
if (write_to_hardware) {
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
}
break;
default:
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
return_ACPI_STATUS(AE_OK);
}
acpi_status
acpi_ev_disable_gpe (
struct acpi_gpe_event_info *gpe_event_info)
{
acpi_status status;
ACPI_FUNCTION_TRACE ("ev_disable_gpe");
if (!(gpe_event_info->flags & ACPI_GPE_ENABLE_MASK)) {
return_ACPI_STATUS (AE_OK);
}
/* Make sure HW enable masks are updated */
status = acpi_ev_update_gpe_enable_masks (gpe_event_info, ACPI_GPE_DISABLE);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Mark wake-disabled or HW disable, or both */
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);
/*lint -fallthrough */
case ACPI_GPE_TYPE_RUNTIME:
/* Disable the requested runtime GPE */
ACPI_CLEAR_BIT (gpe_event_info->flags, ACPI_GPE_RUN_ENABLED);
status = acpi_hw_write_gpe_enable_reg (gpe_event_info);
break;
default:
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
return_ACPI_STATUS (AE_OK);
}
static void acpi_ev_asynch_enable_gpe(void *context)
{
struct acpi_gpe_event_info *gpe_event_info = context;
acpi_status status;
if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
ACPI_GPE_LEVEL_TRIGGERED) {
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
return_VOID;
}
}
(void)acpi_hw_write_gpe_enable_reg(gpe_event_info);
return_VOID;
}
static void acpi_ev_asynch_enable_gpe(void *context)
{
struct acpi_gpe_event_info *gpe_event_info = context;
acpi_status status;
if ((gpe_event_info->flags & ACPI_GPE_XRUPT_TYPE_MASK) ==
ACPI_GPE_LEVEL_TRIGGERED) {
/*
* GPE is level-triggered, we clear the GPE status bit after handling
* the event.
*/
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status)) {
return_VOID;
}
}
/* Enable this GPE */
(void)acpi_hw_write_gpe_enable_reg(gpe_event_info);
return_VOID;
}
