UINT32
AcpiEvFixedEventDetect (
void)
{
UINT32 IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
UINT32 FixedStatus;
UINT32 FixedEnable;
UINT32 i;
ACPI_STATUS Status;
ACPI_FUNCTION_NAME (EvFixedEventDetect);
/*
* Read the fixed feature status and enable registers, as all the cases
* depend on their values. Ignore errors here.
*/
Status = AcpiHwRegisterRead (ACPI_REGISTER_PM1_STATUS, &FixedStatus);
Status |= AcpiHwRegisterRead (ACPI_REGISTER_PM1_ENABLE, &FixedEnable);
if (ACPI_FAILURE (Status))
{
return (IntStatus);
}
ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
"Fixed Event Block: Enable %08X Status %08X\n",
FixedEnable, FixedStatus));
/*
* 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 ((FixedStatus & AcpiGbl_FixedEventInfo[i].StatusBitMask) &&
(FixedEnable & AcpiGbl_FixedEventInfo[i].EnableBitMask))
{
/*
* Found an active (signalled) event. Invoke global event
* handler if present.
*/
AcpiFixedEventCount[i]++;
if (AcpiGbl_GlobalEventHandler)
{
AcpiGbl_GlobalEventHandler (ACPI_EVENT_TYPE_FIXED, NULL,
i, AcpiGbl_GlobalEventHandlerContext);
}
IntStatus |= AcpiEvFixedEventDispatch (i);
}
}
return (IntStatus);
}
UINT32
AcpiEvFixedEventDetect (
void)
{
UINT32 IntStatus = ACPI_INTERRUPT_NOT_HANDLED;
UINT32 FixedStatus;
UINT32 FixedEnable;
ACPI_NATIVE_UINT i;
ACPI_FUNCTION_NAME (EvFixedEventDetect);
/*
* Read the fixed feature status and enable registers, as all the cases
* depend on their values. Ignore errors here.
*/
(void) AcpiHwRegisterRead (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS,
&FixedStatus);
(void) AcpiHwRegisterRead (ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_ENABLE,
&FixedEnable);
ACPI_DEBUG_PRINT ((ACPI_DB_INTERRUPTS,
"Fixed Event Block: Enable %08X Status %08X\n",
FixedEnable, FixedStatus));
/*
* 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 ((FixedStatus & AcpiGbl_FixedEventInfo[i].StatusBitMask) &&
(FixedEnable & AcpiGbl_FixedEventInfo[i].EnableBitMask))
{
/* Found an active (signalled) event */
AcpiFixedEventCount[i]++;
IntStatus |= AcpiEvFixedEventDispatch ((UINT32) i);
}
}
return (IntStatus);
}