ACPI_STATUS
AcpiEvDeleteGpeXrupt (
ACPI_GPE_XRUPT_INFO *GpeXrupt)
{
ACPI_STATUS Status;
ACPI_CPU_FLAGS Flags;
ACPI_FUNCTION_TRACE (EvDeleteGpeXrupt);
/* We never want to remove the SCI interrupt handler */
if (GpeXrupt->InterruptNumber == AcpiGbl_FADT.SciInterrupt)
{
GpeXrupt->GpeBlockListHead = NULL;
return_ACPI_STATUS (AE_OK);
}
/* Disable this interrupt */
Status = AcpiOsRemoveInterruptHandler (
GpeXrupt->InterruptNumber, AcpiEvGpeXruptHandler);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Unlink the interrupt block with lock */
Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
if (GpeXrupt->Previous)
{
GpeXrupt->Previous->Next = GpeXrupt->Next;
}
else
{
/* No previous, update list head */
AcpiGbl_GpeXruptListHead = GpeXrupt->Next;
}
if (GpeXrupt->Next)
{
GpeXrupt->Next->Previous = GpeXrupt->Previous;
}
AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
/* Free the block */
ACPI_FREE (GpeXrupt);
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
AcpiEvRemoveSciHandler (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (EvRemoveSciHandler);
/* Just let the OS remove the handler and disable the level */
Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
AcpiEvSciXruptHandler);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiEvRemoveAllSciHandlers (
void)
{
ACPI_SCI_HANDLER_INFO *SciHandler;
ACPI_CPU_FLAGS Flags;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (EvRemoveAllSciHandlers);
/* Just let the OS remove the handler and disable the level */
Status = AcpiOsRemoveInterruptHandler ((UINT32) AcpiGbl_FADT.SciInterrupt,
AcpiEvSciXruptHandler);
if (!AcpiGbl_SciHandlerList)
{
return (Status);
}
Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
/* Free all host-installed SCI handlers */
while (AcpiGbl_SciHandlerList)
{
SciHandler = AcpiGbl_SciHandlerList;
AcpiGbl_SciHandlerList = SciHandler->Next;
ACPI_FREE (SciHandler);
}
AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
return_ACPI_STATUS (Status);
}