NTSTATUS
NTAPI
Bus_PnP (
PDEVICE_OBJECT DeviceObject,
PIRP Irp
)
{
PIO_STACK_LOCATION irpStack;
NTSTATUS status;
PCOMMON_DEVICE_DATA commonData;
PAGED_CODE ();
irpStack = IoGetCurrentIrpStackLocation (Irp);
ASSERT (IRP_MJ_PNP == irpStack->MajorFunction);
commonData = (PCOMMON_DEVICE_DATA) DeviceObject->DeviceExtension;
if (commonData->IsFDO) {
DPRINT("FDO %s IRP:0x%p\n",
PnPMinorFunctionString(irpStack->MinorFunction),
Irp);
//
// Request is for the bus FDO
//
status = Bus_FDO_PnP (
DeviceObject,
Irp,
irpStack,
(PFDO_DEVICE_DATA) commonData);
} else {
DPRINT("PDO %s IRP: 0x%p\n",
PnPMinorFunctionString(irpStack->MinorFunction),
Irp);
//
// Request is for the child PDO.
//
status = Bus_PDO_PnP (
DeviceObject,
Irp,
irpStack,
(PPDO_DEVICE_DATA) commonData);
}
return status;
}
NTSTATUS Bus_PnP(PDEVICE_OBJECT DeviceObject, PIRP Irp)
{
PIO_STACK_LOCATION irpStack;
NTSTATUS status;
PCOMMON_DEVICE_DATA commonData;
PAGED_CODE();
irpStack = IoGetCurrentIrpStackLocation(Irp);
ASSERT(IRP_MJ_PNP == irpStack->MajorFunction);
commonData = (PCOMMON_DEVICE_DATA) DeviceObject->DeviceExtension;
if (commonData->DevicePnPState == Deleted)
{
Irp->IoStatus.Status = status = STATUS_NO_SUCH_DEVICE ;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return status;
}
if (commonData->IsFDO)
{
Bus_KdPrint(("FDO %s IRP:0x%p\n", PnPMinorFunctionString(irpStack->MinorFunction), Irp));
status = Bus_FDO_PnP(DeviceObject, Irp, irpStack, (PFDO_DEVICE_DATA) commonData);
}
else
{
Bus_KdPrint(("PDO %s IRP: 0x%p\n", PnPMinorFunctionString(irpStack->MinorFunction), Irp));
status = Bus_PDO_PnP(DeviceObject, Irp, irpStack, (PPDO_DEVICE_DATA) commonData);
}
return status;
}
NTSTATUS
Bus_PnP (
__in PDEVICE_OBJECT DeviceObject,
__in PIRP Irp
)
/*++
Routine Description:
Handles PnP Irps sent to both FDO and child PDOs.
Arguments:
DeviceObject - Pointer to deviceobject
Irp - Pointer to a PnP Irp.
Return Value:
NT Status is returned.
--*/
{
PIO_STACK_LOCATION irpStack;
NTSTATUS status;
PCOMMON_DEVICE_DATA commonData;
PAGED_CODE ();
KdPrint(("Bus_PnP\r\n"));
irpStack = IoGetCurrentIrpStackLocation (Irp);
ASSERT (IRP_MJ_PNP == irpStack->MajorFunction);
commonData = (PCOMMON_DEVICE_DATA) DeviceObject->DeviceExtension;
//
// If the device has been removed, the driver should
// not pass the IRP down to the next lower driver.
//
if (commonData->DevicePnPState == Deleted) {
Irp->IoStatus.Status = status = STATUS_NO_SUCH_DEVICE ;
IoCompleteRequest (Irp, IO_NO_INCREMENT);
return status;
}
if (commonData->IsFDO) {
Bus_KdPrint (commonData, BUS_DBG_PNP_TRACE,
("FDO %s IRP:0x%p\n",
PnPMinorFunctionString(irpStack->MinorFunction),
Irp));
//
// Request is for the bus FDO
//
status = Bus_FDO_PnP (
DeviceObject,
Irp,
irpStack,
(PFDO_DEVICE_DATA) commonData);
} else {
Bus_KdPrint (commonData, BUS_DBG_PNP_TRACE,
("PDO %s IRP: 0x%p\n",
PnPMinorFunctionString(irpStack->MinorFunction),
Irp));
//
// Request is for the child PDO.
//
status = Bus_PDO_PnP (
DeviceObject,
Irp,
irpStack,
(PPDO_DEVICE_DATA) commonData);
}
return status;
}
