/********************************************************************************
* Disconnect from the controller completely, in preparation for unload.
*/
static int
twe_detach(device_t dev)
{
struct twe_softc *sc = device_get_softc(dev);
int s, error;
debug_called(4);
error = EBUSY;
s = splbio();
if (sc->twe_state & TWE_STATE_OPEN)
goto out;
/*
* Shut the controller down.
*/
if ((error = twe_shutdown(dev)))
goto out;
twe_free(sc);
error = 0;
out:
splx(s);
return(error);
}
/********************************************************************************
* Disconnect from the controller completely, in preparation for unload.
*/
static int
twe_detach(device_t dev)
{
struct twe_softc *sc = device_get_softc(dev);
debug_called(4);
TWE_IO_LOCK(sc);
if (sc->twe_state & TWE_STATE_OPEN) {
TWE_IO_UNLOCK(sc);
return (EBUSY);
}
sc->twe_state |= TWE_STATE_DETACHING;
TWE_IO_UNLOCK(sc);
/*
* Shut the controller down.
*/
if (twe_shutdown(dev)) {
TWE_IO_LOCK(sc);
sc->twe_state &= ~TWE_STATE_DETACHING;
TWE_IO_UNLOCK(sc);
return (EBUSY);
}
twe_free(sc);
return(0);
}