ACPI_STATUS
AcpiHwDisableAllGpes (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (HwDisableAllGpes);
Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock, NULL);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiUpdateAllGpes (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiUpdateAllGpes);
Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (AcpiGbl_AllGpesInitialized)
{
goto UnlockAndExit;
}
Status = AcpiEvWalkGpeList (AcpiEvInitializeGpeBlock, NULL);
if (ACPI_SUCCESS (Status))
{
AcpiGbl_AllGpesInitialized = TRUE;
}
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiHwClearAcpiStatus (
void)
{
ACPI_STATUS Status;
ACPI_CPU_FLAGS LockFlags = 0;
ACPI_FUNCTION_TRACE (HwClearAcpiStatus);
ACPI_DEBUG_PRINT ((ACPI_DB_IO, "About to write %04X to %8.8X%8.8X\n",
ACPI_BITMASK_ALL_FIXED_STATUS,
ACPI_FORMAT_UINT64 (AcpiGbl_XPm1aStatus.Address)));
LockFlags = AcpiOsAcquireLock (AcpiGbl_HardwareLock);
/* Clear the fixed events in PM1 A/B */
Status = AcpiHwRegisterWrite (ACPI_REGISTER_PM1_STATUS,
ACPI_BITMASK_ALL_FIXED_STATUS);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
/* Clear the GPE Bits in all GPE registers in all GPE blocks */
Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock, NULL);
UnlockAndExit:
AcpiOsReleaseLock (AcpiGbl_HardwareLock, LockFlags);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiHwEnableAllWakeupGpes (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (HwEnableAllWakeupGpes);
Status = AcpiEvWalkGpeList (AcpiHwEnableWakeupGpeBlock, NULL);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiUpdateAllGpes (
void)
{
ACPI_STATUS Status;
BOOLEAN IsPollingNeeded = FALSE;
ACPI_FUNCTION_TRACE (AcpiUpdateAllGpes);
Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (AcpiGbl_AllGpesInitialized)
{
goto UnlockAndExit;
}
Status = AcpiEvWalkGpeList (AcpiEvInitializeGpeBlock,
&IsPollingNeeded);
if (ACPI_SUCCESS (Status))
{
AcpiGbl_AllGpesInitialized = TRUE;
}
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
if (IsPollingNeeded && AcpiGbl_AllGpesInitialized)
{
/* Poll GPEs to handle already triggered events */
AcpiEvGpeDetect (AcpiGbl_GpeXruptListHead);
}
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiGetGpeDevice (
UINT32 Index,
ACPI_HANDLE *GpeDevice)
{
ACPI_GPE_DEVICE_INFO Info;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiGetGpeDevice);
if (!GpeDevice)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
if (Index >= AcpiCurrentGpeCount)
{
return_ACPI_STATUS (AE_NOT_EXIST);
}
/* Setup and walk the GPE list */
Info.Index = Index;
Info.Status = AE_NOT_EXIST;
Info.GpeDevice = NULL;
Info.NextBlockBaseIndex = 0;
Status = AcpiEvWalkGpeList (AcpiEvGetGpeDevice, &Info);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
*GpeDevice = ACPI_CAST_PTR (ACPI_HANDLE, Info.GpeDevice);
return_ACPI_STATUS (Info.Status);
}
void
AcpiEvTerminate (
void)
{
UINT32 i;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (EvTerminate);
if (AcpiGbl_EventsInitialized)
{
/*
* Disable all event-related functionality. In all cases, on error,
* print a message but obviously we don't abort.
*/
/* Disable all fixed events */
for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
{
Status = AcpiDisableEvent (i, 0);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO,
"Could not disable fixed event %u", (UINT32) i));
}
}
/* Disable all GPEs in all GPE blocks */
Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
Status = AcpiEvRemoveGlobalLockHandler ();
if (ACPI_FAILURE(Status))
{
ACPI_ERROR ((AE_INFO,
"Could not remove Global Lock handler"));
}
AcpiGbl_EventsInitialized = FALSE;
}
/* Remove SCI handlers */
Status = AcpiEvRemoveAllSciHandlers ();
if (ACPI_FAILURE(Status))
{
ACPI_ERROR ((AE_INFO,
"Could not remove SCI handler"));
}
/* Deallocate all handler objects installed within GPE info structs */
Status = AcpiEvWalkGpeList (AcpiEvDeleteGpeHandlers, NULL);
/* Return to original mode if necessary */
if (AcpiGbl_OriginalMode == ACPI_SYS_MODE_LEGACY)
{
Status = AcpiDisable ();
if (ACPI_FAILURE (Status))
{
ACPI_WARNING ((AE_INFO, "AcpiDisable failed"));
}
}
return_VOID;
}