/*
* Detach a keyboard. To keep track of users of the softc we keep
* a reference count that's incremented while inside, e.g., read.
* If the keyboard is active and the reference count is > 0 (0 is the
* normal state) we post an event and then wait for the process
* that had the reference to wake us up again. Then we blow away the
* vnode and return (which will deallocate the softc).
*/
int
wskbd_detach(device_t self, int flags)
{
struct wskbd_softc *sc = device_private(self);
struct wseventvar *evar;
int maj, mn;
int s;
#if NWSMUX > 0
/* Tell parent mux we're leaving. */
if (sc->sc_base.me_parent != NULL)
wsmux_detach_sc(&sc->sc_base);
#endif
callout_halt(&sc->sc_repeat_ch, NULL);
callout_destroy(&sc->sc_repeat_ch);
if (sc->sc_isconsole) {
KASSERT(wskbd_console_device == sc);
wskbd_console_device = NULL;
}
pmf_device_deregister(self);
evar = sc->sc_base.me_evp;
if (evar != NULL && evar->io != NULL) {
s = spltty();
if (--sc->sc_refcnt >= 0) {
struct wscons_event event;
/* Wake everyone by generating a dummy event. */
event.type = 0;
event.value = 0;
if (wsevent_inject(evar, &event, 1) != 0)
wsevent_wakeup(evar);
/* Wait for processes to go away. */
if (tsleep(sc, PZERO, "wskdet", hz * 60))
aprint_error("wskbd_detach: %s didn't detach\n",
device_xname(self));
}
splx(s);
}
/* locate the major number */
maj = cdevsw_lookup_major(&wskbd_cdevsw);
/* Nuke the vnodes for any open instances. */
mn = device_unit(self);
vdevgone(maj, mn, mn, VCHR);
return (0);
}
/*
* Detach a mouse. To keep track of users of the softc we keep
* a reference count that's incremented while inside, e.g., read.
* If the mouse is active and the reference count is > 0 (0 is the
* normal state) we post an event and then wait for the process
* that had the reference to wake us up again. Then we blow away the
* vnode and return (which will deallocate the softc).
*/
int
wsmouse_detach(device_t self, int flags)
{
struct wsmouse_softc *sc = device_private(self);
struct wseventvar *evar;
int maj, mn;
int s;
#if NWSMUX > 0
/* Tell parent mux we're leaving. */
if (sc->sc_base.me_parent != NULL) {
DPRINTF(("wsmouse_detach:\n"));
wsmux_detach_sc(&sc->sc_base);
}
#endif
/* If we're open ... */
evar = sc->sc_base.me_evp;
if (evar != NULL && evar->io != NULL) {
s = spltty();
if (--sc->sc_refcnt >= 0) {
struct wscons_event event;
/* Wake everyone by generating a dummy event. */
event.type = 0;
event.value = 0;
if (wsevent_inject(evar, &event, 1) != 0)
wsevent_wakeup(evar);
/* Wait for processes to go away. */
if (tsleep(sc, PZERO, "wsmdet", hz * 60))
printf("wsmouse_detach: %s didn't detach\n",
device_xname(self));
}
splx(s);
}
/* locate the major number */
maj = cdevsw_lookup_major(&wsmouse_cdevsw);
/* Nuke the vnodes for any open instances (calls close). */
mn = device_unit(self);
vdevgone(maj, mn, mn, VCHR);
return (0);
}
