ACPI_STATUS
AcpiEvInstallFadtGpes (
void)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (EvInstallFadtGpes);
/* Namespace must be locked */
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* FADT GPE Block 0 */
(void) AcpiEvInitializeGpeBlock (
AcpiGbl_FadtGpeDevice, AcpiGbl_GpeFadtBlocks[0]);
/* FADT GPE Block 1 */
(void) AcpiEvInitializeGpeBlock (
AcpiGbl_FadtGpeDevice, AcpiGbl_GpeFadtBlocks[1]);
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
AcpiInstallGpeBlock (
ACPI_HANDLE GpeDevice,
ACPI_GENERIC_ADDRESS *GpeBlockAddress,
UINT32 RegisterCount,
UINT32 InterruptNumber)
{
ACPI_STATUS Status;
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_NAMESPACE_NODE *Node;
ACPI_GPE_BLOCK_INFO *GpeBlock;
ACPI_FUNCTION_TRACE (AcpiInstallGpeBlock);
if ((!GpeDevice) ||
(!GpeBlockAddress) ||
(!RegisterCount))
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
return (Status);
}
Node = AcpiNsValidateHandle (GpeDevice);
if (!Node)
{
Status = AE_BAD_PARAMETER;
goto UnlockAndExit;
}
/*
* For user-installed GPE Block Devices, the GpeBlockBaseNumber
* is always zero
*/
Status = AcpiEvCreateGpeBlock (Node, GpeBlockAddress, RegisterCount,
0, InterruptNumber, &GpeBlock);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
/* Install block in the DeviceObject attached to the node */
ObjDesc = AcpiNsGetAttachedObject (Node);
if (!ObjDesc)
{
/*
* No object, create a new one (Device nodes do not always have
* an attached object)
*/
ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_DEVICE);
if (!ObjDesc)
{
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_DEVICE);
/* Remove local reference to the object */
AcpiUtRemoveReference (ObjDesc);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
}
/* Now install the GPE block in the DeviceObject */
ObjDesc->Device.GpeBlock = GpeBlock;
/* Run the _PRW methods and enable the runtime GPEs in the new block */
Status = AcpiEvInitializeGpeBlock (Node, GpeBlock);
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
return_ACPI_STATUS (Status);
}
