Пример #1
0
int
com_detach(struct device *self, int flags)
{
	struct com_softc *sc = (struct com_softc *)self;
	int maj, mn;

	sc->sc_swflags |= COM_SW_DEAD;

	/* Locate the major number. */
	for (maj = 0; maj < nchrdev; maj++)
		if (cdevsw[maj].d_open == comopen)
			break;

	/* Nuke the vnodes for any open instances. */
	mn = self->dv_unit;
	vdevgone(maj, mn, mn, VCHR);

	/* XXX a symbolic constant for the cua bit would be nicer. */
	mn |= 0x80;
	vdevgone(maj, mn, mn, VCHR);

	/* Detach and free the tty. */
	if (sc->sc_tty) {
		ttyfree(sc->sc_tty);
	}

	timeout_del(&sc->sc_dtr_tmo);
	timeout_del(&sc->sc_diag_tmo);
	softintr_disestablish(sc->sc_si);

	return (0);
}
Пример #2
0
/* This is necessary when dynamically changing SAIP configuration. */
int
sacom_detach(struct device *self, int flags)
{
    struct sacom_softc *sc = (struct sacom_softc *)self;
    int maj, mn;

    /* locate the major number */
    maj = cdevsw_lookup_major(&sacom_cdevsw);

    /* Nuke the vnodes for any open instances. */
    mn = device_unit(self);
    vdevgone(maj, mn, mn, VCHR);

    mn |= COMDIALOUT_MASK;
    vdevgone(maj, mn, mn, VCHR);

    /* Free the receive buffer. */
    free(sc->sc_rbuf, M_DEVBUF);

    /* Detach and free the tty. */
    tty_detach(sc->sc_tty);
    ttyfree(sc->sc_tty);

    /* Unhook the soft interrupt handler. */
    softint_disestablish(sc->sc_si);

#if NRND > 0 && defined(RND_COM)
    /* Unhook the entropy source. */
    rnd_detach_source(&sc->rnd_source);
#endif

    return 0;
}
Пример #3
0
int
comclose(dev_t dev, int flag, int mode, struct lwp *l)
{
	struct com_softc *sc = device_lookup_private(&xcom_cd, COMUNIT(dev));
	struct tty *tp = sc->sc_tty;
	int iobase = sc->sc_iobase;
	int s;

	/* XXX This is for cons.c. */
	if (!ISSET(tp->t_state, TS_ISOPEN))
		return 0;

	(*tp->t_linesw->l_close)(tp, flag);
	s = spltty();
	CLR(sc->sc_lcr, LCR_SBREAK);
	outb(pio(iobase , com_lcr), sc->sc_lcr);
	outb(pio(iobase , com_ier), 0);
	if (ISSET(tp->t_cflag, HUPCL) &&
	    !ISSET(sc->sc_swflags, COM_SW_SOFTCAR)) {
		/* XXX perhaps only clear DTR */
		outb(pio(iobase , com_mcr), 0);
	}
	CLR(tp->t_state, TS_BUSY | TS_FLUSH);
	if (--comsopen == 0)
		callout_stop(&com_poll_ch);
	splx(s);
	ttyclose(tp);
#ifdef notyet /* XXXX */
	if (unit != comconsole) {
		ttyfree(tp);
		sc->sc_tty = 0;
	}
#endif
	return 0;
}
Пример #4
0
int
ucom_detach(struct device *self, int flags)
{
	struct ucom_softc *sc = (struct ucom_softc *)self;
	struct tty *tp = sc->sc_tty;
	int maj, mn;
	int s;

	DPRINTF(("ucom_detach: sc=%p flags=%d tp=%p, pipe=%d,%d\n",
		 sc, flags, tp, sc->sc_bulkin_no, sc->sc_bulkout_no));

	sc->sc_dying = 1;

	if (sc->sc_bulkin_pipe != NULL)
		usbd_abort_pipe(sc->sc_bulkin_pipe);
	if (sc->sc_bulkout_pipe != NULL)
		usbd_abort_pipe(sc->sc_bulkout_pipe);

	s = splusb();
	if (--sc->sc_refcnt >= 0) {
		/* Wake up anyone waiting */
		if (tp != NULL) {
			CLR(tp->t_state, TS_CARR_ON);
			CLR(tp->t_cflag, CLOCAL | MDMBUF);
			ttyflush(tp, FREAD|FWRITE);
		}
		/* Wait for processes to go away. */
		usb_detach_wait(&sc->sc_dev);
	}
	splx(s);

	/* locate the major number */
	for (maj = 0; maj < nchrdev; maj++)
		if (cdevsw[maj].d_open == ucomopen)
			break;

	/* Nuke the vnodes for any open instances. */
	mn = self->dv_unit;
	DPRINTF(("ucom_detach: maj=%d mn=%d\n", maj, mn));
	vdevgone(maj, mn, mn, VCHR);
	vdevgone(maj, mn | UCOMCUA_MASK, mn | UCOMCUA_MASK, VCHR);

	/* Detach and free the tty. */
	if (tp != NULL) {
		ttyfree(tp);
		sc->sc_tty = NULL;
	}

	return (0);
}
Пример #5
0
static int
ufoma_detach(device_t self)
{
	struct ufoma_softc *sc = device_get_softc(self);
	int rv = 0;

	usbd_free_xfer(sc->sc_msgxf);
	sc->sc_ucom.sc_dying = 1;
	usbd_abort_pipe(sc->sc_notify_pipe);
	usbd_close_pipe(sc->sc_notify_pipe);
	if(sc->sc_is_ucom)
		ucom_detach(&sc->sc_ucom);
	else
		ttyfree(sc->sc_ucom.sc_tty);
	free(sc->sc_modetable, M_USBDEV);
	return rv;
}
Пример #6
0
int
comclose(dev_t dev, int flag, int mode, struct proc *p)
{
	int unit = DEVUNIT(dev);
	struct com_softc *sc = com_cd.cd_devs[unit];
	bus_space_tag_t iot = sc->sc_iot;
	bus_space_handle_t ioh = sc->sc_ioh;
	struct tty *tp = sc->sc_tty;
	int s;

#ifdef COM_CONSOLE
	/* XXX This is for cons.c. */
	if (!ISSET(tp->t_state, TS_ISOPEN))
		return 0;
#endif

	if(sc->sc_swflags & COM_SW_DEAD)
		return 0;

	(*linesw[tp->t_line].l_close)(tp, flag, p);
	s = spltty();
	if (ISSET(tp->t_state, TS_WOPEN)) {
		/* tty device is waiting for carrier; drop dtr then re-raise */
		CLR(sc->sc_mcr, MCR_DTR | MCR_RTS);
		bus_space_write_1(iot, ioh, com_mcr, sc->sc_mcr);
		timeout_add_sec(&sc->sc_dtr_tmo, 2);
	} else {
		/* no one else waiting; turn off the uart */
		compwroff(sc);
	}
	CLR(tp->t_state, TS_BUSY | TS_FLUSH);
	sc->sc_cua = 0;
	splx(s);
	ttyclose(tp);

#ifdef COM_CONSOLE
#ifdef notyet /* XXXX */
	if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
		ttyfree(tp);
		sc->sc_tty = 0;
	}
#endif
#endif
	return 0;
}
Пример #7
0
int
ucom_detach(struct device *self, int flags)
{
	struct ucom_softc *sc = (struct ucom_softc *)self;
	struct tty *tp = sc->sc_tty;
	int maj, mn;
	int s;

	DPRINTF(("ucom_detach: sc=%p flags=%d tp=%p, pipe=%d,%d\n",
		 sc, flags, tp, sc->sc_bulkin_no, sc->sc_bulkout_no));

	if (sc->sc_bulkin_pipe != NULL) {
		usbd_abort_pipe(sc->sc_bulkin_pipe);
		usbd_close_pipe(sc->sc_bulkin_pipe);
		sc->sc_bulkin_pipe = NULL;
	}
	if (sc->sc_bulkout_pipe != NULL) {
		usbd_abort_pipe(sc->sc_bulkout_pipe);
		usbd_close_pipe(sc->sc_bulkout_pipe);
		sc->sc_bulkout_pipe = NULL;
	}
	if (sc->sc_ixfer != NULL) {
		if (sc->sc_uhidev == NULL)
			usbd_free_xfer(sc->sc_ixfer);
		sc->sc_ixfer = NULL;
	}
	if (sc->sc_oxfer != NULL) {
		usbd_free_buffer(sc->sc_oxfer);
		if (sc->sc_uhidev == NULL)
			usbd_free_xfer(sc->sc_oxfer);
		sc->sc_oxfer = NULL;
	}

	s = splusb();
	if (--sc->sc_refcnt >= 0) {
		/* Wake up anyone waiting */
		if (tp != NULL) {
			CLR(tp->t_state, TS_CARR_ON);
			CLR(tp->t_cflag, CLOCAL | MDMBUF);
			ttyflush(tp, FREAD|FWRITE);
		}
		usb_detach_wait(&sc->sc_dev);
	}
	splx(s);

	/* locate the major number */
	for (maj = 0; maj < nchrdev; maj++)
		if (cdevsw[maj].d_open == ucomopen)
			break;

	/* Nuke the vnodes for any open instances. */
	mn = self->dv_unit;
	DPRINTF(("ucom_detach: maj=%d mn=%d\n", maj, mn));
	vdevgone(maj, mn, mn, VCHR);
	vdevgone(maj, mn | UCOMCUA_MASK, mn | UCOMCUA_MASK, VCHR);

	/* Detach and free the tty. */
	if (tp != NULL) {
		(*LINESW(tp, l_close))(tp, FNONBLOCK, curproc);
		s = spltty();
		CLR(tp->t_state, TS_BUSY | TS_FLUSH);
		ttyclose(tp);
		splx(s);
		ttyfree(tp);
		sc->sc_tty = NULL;
	}

	return (0);
}