ACPI_STATUS
AcpiDisable (void)
{
ACPI_STATUS Status;
FUNCTION_TRACE ("AcpiDisable");
/* Ensure that ACPI has been initialized */
ACPI_IS_INITIALIZATION_COMPLETE (Status);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Restore original mode */
Status = AcpiHwSetMode (AcpiGbl_OriginalMode);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unable to transition to original mode"));
return_ACPI_STATUS (Status);
}
/* Unload the SCI interrupt handler */
AcpiEvRemoveSciHandler ();
AcpiEvRestoreAcpiState ();
return_ACPI_STATUS (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);
/* Remove SCI handler */
Status = AcpiEvRemoveSciHandler ();
if (ACPI_FAILURE(Status))
{
ACPI_ERROR ((AE_INFO,
"Could not remove SCI handler"));
}
Status = AcpiEvRemoveGlobalLockHandler ();
if (ACPI_FAILURE(Status))
{
ACPI_ERROR ((AE_INFO,
"Could not remove Global Lock handler"));
}
AcpiGbl_EventsInitialized = FALSE;
}
/* 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;
}