u32
acpi_ev_fixed_event_detect (void)
{
u32 int_status = INTERRUPT_NOT_HANDLED;
u32 status_register;
u32 enable_register;
PROC_NAME ("Ev_fixed_event_detect");
/*
* Read the fixed feature status and enable registers, as all the cases
* depend on their values.
*/
status_register = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, PM1_STS);
enable_register = acpi_hw_register_read (ACPI_MTX_DO_NOT_LOCK, PM1_EN);
ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
"Fixed Acpi_event Block: Enable %08X Status %08X\n",
enable_register, status_register));
/* power management timer roll over */
if ((status_register & ACPI_STATUS_PMTIMER) &&
(enable_register & ACPI_ENABLE_PMTIMER)) {
int_status |= acpi_ev_fixed_event_dispatch (ACPI_EVENT_PMTIMER);
}
/* global event (BIOS wants the global lock) */
if ((status_register & ACPI_STATUS_GLOBAL) &&
(enable_register & ACPI_ENABLE_GLOBAL)) {
int_status |= acpi_ev_fixed_event_dispatch (ACPI_EVENT_GLOBAL);
}
/* power button event */
if ((status_register & ACPI_STATUS_POWER_BUTTON) &&
(enable_register & ACPI_ENABLE_POWER_BUTTON)) {
int_status |= acpi_ev_fixed_event_dispatch (ACPI_EVENT_POWER_BUTTON);
}
/* sleep button event */
if ((status_register & ACPI_STATUS_SLEEP_BUTTON) &&
(enable_register & ACPI_ENABLE_SLEEP_BUTTON)) {
int_status |= acpi_ev_fixed_event_dispatch (ACPI_EVENT_SLEEP_BUTTON);
}
return (int_status);
}
u32 acpi_ev_fixed_event_detect(void)
{
u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
u32 fixed_status;
u32 fixed_enable;
u32 i;
acpi_status status;
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.
*/
status = acpi_hw_register_read(ACPI_REGISTER_PM1_STATUS, &fixed_status);
status |=
acpi_hw_register_read(ACPI_REGISTER_PM1_ENABLE, &fixed_enable);
if (ACPI_FAILURE(status)) {
return (int_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
*/
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)) {
/*
* Found an active (signalled) event. Invoke global event
* handler if present.
*/
acpi_fixed_event_count[i]++;
if (acpi_gbl_global_event_handler) {
acpi_gbl_global_event_handler
(ACPI_EVENT_TYPE_FIXED, NULL, i,
acpi_gbl_global_event_handler_context);
}
int_status |= acpi_ev_fixed_event_dispatch(i);
}
}
return (int_status);
}
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");
/*
* 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);
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
*/
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)) {
/* Found an active (signalled) event */
int_status |= acpi_ev_fixed_event_dispatch ((u32) i);
}
}
return (int_status);
}