/* Handle an IRP. */
static NTSTATUS WvFilediskIrpDispatch(
IN PDEVICE_OBJECT dev_obj,
IN PIRP irp
) {
PIO_STACK_LOCATION io_stack_loc;
WV_SP_FILEDISK_T filedisk;
NTSTATUS status;
io_stack_loc = IoGetCurrentIrpStackLocation(irp);
filedisk = dev_obj->DeviceExtension;
switch (io_stack_loc->MajorFunction) {
case IRP_MJ_SCSI:
return WvlDiskScsi(dev_obj, irp, filedisk->disk);
case IRP_MJ_PNP:
status = WvlDiskPnp(dev_obj, irp, filedisk->disk);
/* Note any state change. */
filedisk->Dev->OldState = filedisk->disk->OldState;
filedisk->Dev->State = filedisk->disk->State;
if (filedisk->Dev->State == WvlDiskStateNotStarted) {
if (!filedisk->Dev->BusNode.Linked) {
/* Unlinked _and_ deleted */
DBG("Deleting filedisk PDO: %p", dev_obj);
IoDeleteDevice(dev_obj);
}
}
return status;
case IRP_MJ_DEVICE_CONTROL:
return WvlDiskDevCtl(
filedisk->disk,
irp,
io_stack_loc->Parameters.DeviceIoControl.IoControlCode
);
case IRP_MJ_POWER:
return WvlDiskPower(dev_obj, irp, filedisk->disk);
case IRP_MJ_CREATE:
case IRP_MJ_CLOSE:
/* Always succeed with nothing to do. */
return WvlIrpComplete(irp, 0, STATUS_SUCCESS);
case IRP_MJ_SYSTEM_CONTROL:
return WvlDiskSysCtl(dev_obj, irp, filedisk->disk);
default:
DBG("Unhandled IRP_MJ_*: %d\n", io_stack_loc->MajorFunction);
}
return WvlIrpComplete(irp, 0, STATUS_NOT_SUPPORTED);
}
NTSTATUS STDCALL WvDiskPnp(
IN WV_SP_DEV_T dev,
IN PIRP irp,
IN UCHAR code
) {
NTSTATUS status;
WVL_SP_DISK_T disk = disk__get_ptr(dev);
status = WvlDiskPnp(dev->Self, irp, disk);
/* Note any state change. */
dev->OldState = disk->OldState;
dev->State = disk->State;
return status;
}