int
vconsopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct vcons_softc *sc;
struct tty *tp;
int unit = minor(dev);
if (unit > vcons_cd.cd_ndevs)
return (ENXIO);
sc = vcons_cd.cd_devs[unit];
if (sc == NULL)
return (ENXIO);
if (sc->sc_tty)
tp = sc->sc_tty;
else
tp = sc->sc_tty = ttymalloc(0);
tp->t_oproc = vconsstart;
tp->t_param = vconsparam;
tp->t_dev = dev;
if ((tp->t_state & TS_ISOPEN) == 0) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
ttsetwater(tp);
} else if ((tp->t_state & TS_XCLUDE) && suser(p, 0))
return (EBUSY);
tp->t_state |= TS_CARR_ON;
return ((*linesw[tp->t_line].l_open)(dev, tp, p));
}
void trmOpen(dev_t dev, int flag) {
int d;
struct tty *tp;
struct device *addr;
d = minor(dev);
if (d >= NUM_TERMINALS) {
u.u_error = ENXIO;
return;
}
tp = &terminal[d];
addr = TERM_BASE + d;
tp->t_addr = (caddr_t) addr;
tp->t_oproc = xmtStart;
if ((tp->t_state & ISOPEN) == 0) {
tp->t_state = ISOPEN | CARR_ON;
tp->t_flags = EVENP | ECHO | XTABS | CRMOD;
ttychars(tp);
}
setISR(2 * d + 0, xmtISR);
setISR(2 * d + 1, rcvISR);
addr->xmtCtrl = XMT_RDY;
addr->rcvCtrl = RCV_IEN;
ttyopen(dev, tp);
}
int
uart_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct uart_softc *sc = device_lookup_private(&uart_cd, minor(dev));
struct tty *tp = sc->sc_tty;
int s, error = 0;
s = spltty();
tp->t_dev = dev;
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_CARR_ON;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG | CLOCAL;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = 115200;
ttsetwater(tp);
} else if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN,
tp) != 0) {
splx(s);
return (EBUSY);
}
splx(s);
error = (*tp->t_linesw->l_open)(dev, tp);
return (error);
}
int
xencons_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct xencons_softc *sc;
struct tty *tp;
sc = device_lookup_private(&xencons_cd, XENCONS_UNIT(dev));
if (sc == NULL)
return (ENXIO);
tp = sc->sc_tty;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
tp->t_dev = dev;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
xencons_param(tp, &tp->t_termios);
ttsetwater(tp);
}
tp->t_state |= TS_CARR_ON;
return ((*tp->t_linesw->l_open)(dev, tp));
}
int
biconsdevopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct tty *tp = &biconsdev_tty[0];
int status;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
if ((tp->t_state & TS_ISOPEN) == 0) {
/*
* Leave baud rate alone!
*/
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_state = TS_ISOPEN | TS_CARR_ON;
(void)(*tp->t_param)(tp, &tp->t_termios);
ttsetwater(tp);
}
status = (*tp->t_linesw->l_open)(dev, tp);
return status;
}
int
vioconopen(dev_t dev, int flag, int mode, struct proc *p)
{
int unit = VIOCONUNIT(dev);
int port = VIOCONPORT(dev);
struct viocon_softc *sc;
struct viocon_port *vp;
struct tty *tp;
int s, error;
if (unit >= viocon_cd.cd_ndevs)
return (ENXIO);
sc = viocon_cd.cd_devs[unit];
if (sc == NULL)
return (ENXIO);
if (ISSET(sc->sc_dev.dv_flags, DVF_ACTIVE) == 0)
return (ENXIO);
s = spltty();
if (port >= sc->sc_max_ports) {
splx(s);
return (ENXIO);
}
vp = sc->sc_ports[port];
tp = vp->vp_tty;
#ifdef NOTYET
vp->vp_guest_open = 1;
#endif
splx(s);
if (!ISSET(tp->t_state, TS_ISOPEN)) {
SET(tp->t_state, TS_WOPEN);
ttychars(tp);
tp->t_ispeed = 1000000;
tp->t_ospeed = 1000000;
tp->t_cflag = TTYDEF_CFLAG|CLOCAL|CRTSCTS;
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
if (vp->vp_cols != 0) {
tp->t_winsize.ws_col = vp->vp_cols;
tp->t_winsize.ws_row = vp->vp_rows;
}
s = spltty();
vioconparam(tp, &tp->t_termios);
ttsetwater(tp);
splx(s);
}
else if (ISSET(tp->t_state, TS_XCLUDE) && suser(p, 0) != 0) {
return (EBUSY);
}
error = linesw[tp->t_line].l_open(dev, tp, p);
return error;
}
int
dzopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct tty *tp;
int unit, line;
struct dz_softc *sc;
int s, error = 0;
unit = DZ_I2C(minor(dev));
sc = device_lookup_private(&dz_cd, unit);
if (sc == NULL)
return ENXIO;
line = DZ_PORT(minor(dev));
if (line > 0) /* FIXME for more than one line */
return ENXIO;
tp = sc->sc_dz.dz_tty;
if (tp == NULL)
return ENODEV;
tp->t_oproc = dzstart;
tp->t_param = dzparam;
tp->t_dev = dev;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
if ((tp->t_state & TS_ISOPEN) == 0) {
ttychars(tp);
if (tp->t_ispeed == 0) {
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
}
(void)dzparam(tp, &tp->t_termios);
ttsetwater(tp);
}
/* we have no modem control but..*/
if (dzmctl(sc, line, TIOCM_DTR, DMBIS) & TIOCM_CD)
tp->t_state |= TS_CARR_ON;
s = spltty();
while (!(flag & O_NONBLOCK) && !(tp->t_cflag & CLOCAL) &&
!(tp->t_state & TS_CARR_ON)) {
tp->t_wopen++;
error = ttysleep(tp, &tp->t_rawcv, true, 0);
tp->t_wopen--;
if (error)
break;
}
(void)splx(s);
if (error)
return error;
return (*tp->t_linesw->l_open)(dev, tp);
}
static int
zsttyopen(dev_t dev, int flags, int mode, struct thread *td)
{
struct zstty_softc *sc;
struct tty *tp;
int error;
sc = dev->si_drv1;
tp = dev->si_tty;
if ((tp->t_state & TS_ISOPEN) != 0 &&
(tp->t_state & TS_XCLUDE) != 0 &&
!suser(td))
return (EBUSY);
if ((tp->t_state & TS_ISOPEN) == 0) {
struct termios t;
/*
* Enable receive and status interrupts in zstty_param.
*/
sc->sc_preg[1] |= ZSWR1_RIE | ZSWR1_SIE;
sc->sc_iput = sc->sc_iget = sc->sc_ibuf;
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
t.c_ospeed = tp->t_ospeed;
t.c_cflag = TTYDEF_CFLAG;
/* Make sure zstty_param() will do something. */
tp->t_ospeed = 0;
(void)zstty_param(sc, tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
/* XXX turn on DTR */
/* XXX handle initial DCD */
}
error = ttyopen(dev, tp);
if (error != 0)
return (error);
error = (*linesw[tp->t_line].l_open)(dev, tp);
if (error != 0)
return (error);
return (0);
}
int
kdopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct kd_softc *kd;
int error, s, unit;
struct tty *tp;
static int firstopen = 1;
unit = minor(dev);
if (unit != 0)
return ENXIO;
kd = &kd_softc; /* XXX */
if (firstopen) {
kd_init(kd);
firstopen = 0;
}
tp = kd->kd_tty;
/* It's simpler to do this up here. */
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
s = spltty();
if ((tp->t_state & TS_ISOPEN) == 0) {
/* First open. */
/* Notify the input device that serves us */
struct cons_channel *cc = kd->kd_in;
if (cc != NULL &&
(error = (*cc->cc_iopen)(cc)) != 0) {
return (error);
}
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
(void) kdparam(tp, &tp->t_termios);
ttsetwater(tp);
tp->t_winsize.ws_row = kd->rows;
tp->t_winsize.ws_col = kd->cols;
/* Flush pending input? Clear translator? */
/* This (pseudo)device always has SOFTCAR */
tp->t_state |= TS_CARR_ON;
}
splx(s);
return ((*tp->t_linesw->l_open)(dev, tp));
}
int
arcbios_ttyopen(dev_t dev, int flag, int mode, struct lwp *l)
{
int unit = minor(dev);
struct tty *tp;
int s, error = 0, setuptimeout = 0;
if (!arcbios_ch_init) {
arcbios_ch_init = true;
callout_init(&arcbios_tty_ch, 0);
}
if (unit != 0)
return (ENODEV);
s = spltty();
if (arcbios_tty[unit] == NULL) {
tp = arcbios_tty[unit] = tty_alloc();
tty_attach(tp);
} else
tp = arcbios_tty[unit];
tp->t_oproc = arcbios_tty_start;
tp->t_param = arcbios_tty_param;
tp->t_dev = dev;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp)) {
splx(s);
return (EBUSY);
}
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_CARR_ON;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG | CLOCAL;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = 9600;
ttsetwater(tp);
setuptimeout = 1;
}
splx(s);
error = (*tp->t_linesw->l_open)(dev, tp);
if (error == 0 && setuptimeout)
callout_reset(&arcbios_tty_ch, 1, arcbios_tty_poll, tp);
return (error);
}
int
dartopen(dev_t dev, int flag, int mode, struct proc *p)
{
int s, port;
struct dart_info *dart;
struct dartsoftc *sc;
struct tty *tp;
port = DART_PORT(dev);
if (dart_cd.cd_ndevs == 0 || port >= NDARTPORTS)
return (ENODEV);
sc = (struct dartsoftc *)dart_cd.cd_devs[0]; /* the only one */
dart = &sc->sc_dart[port];
s = spltty();
if (dart->tty != NULL)
tp = dart->tty;
else
tp = dart->tty = ttymalloc();
tp->t_oproc = dartstart;
tp->t_param = dartparam;
tp->t_dev = dev;
if ((tp->t_state & TS_ISOPEN) == 0) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = B9600;
dartparam(tp, &tp->t_termios);
if (port == CONS_PORT) {
/* console is 8N1 */
tp->t_cflag = (CREAD | CS8 | HUPCL);
} else {
tp->t_cflag = TTYDEF_CFLAG;
}
ttsetwater(tp);
(void)dartmctl(dev, TIOCM_DTR | TIOCM_RTS, DMSET);
tp->t_state |= TS_CARR_ON;
} else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) {
splx(s);
return (EBUSY);
}
/*
* Reset the tty pointer, as there could have been a dialout
* use of the tty with a dialin open waiting.
*/
tp->t_dev = dev;
splx(s);
return ((*linesw[tp->t_line].l_open)(dev, tp));
}
static int
ofw_dev_open(dev_t dev, int flag, int mode, struct thread *td)
{
struct tty *tp;
int unit;
int error, setuptimeout;
error = 0;
setuptimeout = 0;
unit = minor(dev);
tp = ofw_tp = dev->si_tty = ttymalloc(ofw_tp);
tp->t_oproc = ofw_tty_start;
tp->t_param = ofw_tty_param;
tp->t_stop = ofw_tty_stop;
tp->t_dev = dev;
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_CARR_ON;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG|CLOCAL;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
ttsetwater(tp);
setuptimeout = 1;
} else if ((tp->t_state & TS_XCLUDE) && suser(td)) {
return (EBUSY);
}
error = (*linesw[tp->t_line].l_open)(dev, tp);
if (error == 0 && setuptimeout) {
polltime = hz / OFW_POLL_HZ;
if (polltime < 1) {
polltime = 1;
}
ofw_timeouthandle = timeout(ofw_timeout, tp, polltime);
}
return (error);
}
/*ARGSUSED*/
int
ptsopen(dev_t dev, int flag, int devtype, struct proc *p)
{
struct pt_softc *pti;
struct tty *tp;
int error;
if ((error = check_pty(minor(dev))))
return (error);
pti = pt_softc[minor(dev)];
if (!pti->pt_tty) {
tp = pti->pt_tty = ttymalloc();
} else
tp = pti->pt_tty;
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_WOPEN;
ttychars(tp); /* Set up default chars */
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
ttsetwater(tp); /* would be done in xxparam() */
} else if (tp->t_state&TS_XCLUDE && p->p_ucred->cr_uid != 0)
return (EBUSY);
if (tp->t_oproc) /* Ctrlr still around. */
tp->t_state |= TS_CARR_ON;
while ((tp->t_state & TS_CARR_ON) == 0) {
tp->t_state |= TS_WOPEN;
if (flag&FNONBLOCK)
break;
error = ttysleep(tp, &tp->t_rawq, TTIPRI | PCATCH,
ttopen, 0);
if (error)
return (error);
}
error = (*linesw[tp->t_line].l_open)(dev, tp);
ptcwakeup(tp, FREAD|FWRITE);
return (error);
}
int hypcnopen(dev_t dev, int flag, io_req_t ior)
{
struct tty *tp = &hypcn_tty;
spl_t o_pri;
o_pri = spltty();
simple_lock(&tp->t_lock);
if (!(tp->t_state & (TS_ISOPEN|TS_WOPEN))) {
/* XXX ttychars allocates memory */
simple_unlock(&tp->t_lock);
ttychars(tp);
simple_lock(&tp->t_lock);
tp->t_oproc = hypcnstart;
tp->t_stop = hypcnstop;
tp->t_ospeed = tp->t_ispeed = B9600;
tp->t_flags = ODDP|EVENP|ECHO|CRMOD|XTABS;
}
tp->t_state |= TS_CARR_ON;
simple_unlock(&tp->t_lock);
splx(o_pri);
return (char_open(dev, tp, flag, ior));
}
int
dlopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct tty *tp;
struct dl_softc *sc;
int unit;
unit = minor(dev);
sc = device_lookup_private(&dl_cd, unit);
if (!sc)
return ENXIO;
tp = sc->sc_tty;
if (tp == NULL)
return ENODEV;
tp->t_oproc = dlstart;
tp->t_param = dlparam;
tp->t_dev = dev;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
if (!(tp->t_state & TS_ISOPEN)) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
/* No modem control, so set CLOCAL. */
tp->t_cflag = TTYDEF_CFLAG | CLOCAL;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
dlparam(tp, &tp->t_termios);
ttsetwater(tp);
}
return ((*tp->t_linesw->l_open)(dev, tp));
}
static int
dcons_open(dev_t dev, int flag, int mode, struct THREAD *td)
{
struct tty *tp;
int unit, error, s;
unit = minor(dev);
if (unit != 0)
return (ENXIO);
tp = dev->si_tty = ttymalloc(dev->si_tty);
tp->t_oproc = dcons_tty_start;
tp->t_param = dcons_tty_param;
tp->t_stop = nottystop;
tp->t_dev = dev;
error = 0;
s = spltty();
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_state |= TS_CARR_ON;
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG|CLOCAL;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
ttsetwater(tp);
} else if ((tp->t_state & TS_XCLUDE) && suser(td)) {
splx(s);
return (EBUSY);
}
splx(s);
error = (*linesw[tp->t_line].l_open)(dev, tp);
return (error);
}
int usbopen (dev_t dev, int flag, int mode)
{
register struct tty *tp = &usbttys[0];
tp->t_oproc = usbstart;
if ((tp->t_state & TS_ISOPEN) == 0) {
tp->t_ispeed = BBAUD(UARTUSB_BAUD);
tp->t_ospeed = BBAUD(UARTUSB_BAUD);
ttychars(tp);
tp->t_state = TS_ISOPEN | TS_CARR_ON;
tp->t_flags = ECHO | XTABS | CRMOD | CRTBS | CRTERA | CTLECH | CRTKIL;
}
if ((tp->t_state & TS_XCLUDE) && u.u_uid != 0)
return (EBUSY);
if (tp->t_ispeed == 0) {
tp->t_ispeed = BBAUD(UARTUSB_BAUD);
tp->t_ospeed = BBAUD(UARTUSB_BAUD);
}
cdc_set_line_coding(speed_bps[tp->t_ospeed], NUM_STOP_BITS_1, PARITY_NONE, 8);
return ttyopen (dev, tp);
}
int
pconsopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct pconssoftc *sc;
struct tty *tp;
sc = device_lookup_private(&pcons_cd, minor(dev));
if (sc == NULL)
return ENXIO;
if ((tp = sc->of_tty) == NULL)
sc->of_tty = tp = tty_alloc();
tp->t_oproc = pconsstart;
tp->t_param = pconsparam;
tp->t_dev = dev;
cn_tab->cn_dev = dev;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
if ((tp->t_state & TS_ISOPEN) == 0) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
pconsparam(tp, &tp->t_termios);
ttsetwater(tp);
}
tp->t_state |= TS_CARR_ON;
if ((sc->of_flags & OFPOLL) == 0) {
sc->of_flags |= OFPOLL;
callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc);
}
return (*tp->t_linesw->l_open)(dev, tp);
}
int
sabopen(dev_t dev, int flags, int mode, struct lwp *l)
{
struct sabtty_softc *sc;
struct tty *tp;
struct proc *p;
int s, s1;
sc = device_lookup_private(&sabtty_cd, SABUNIT(dev));
if (sc == NULL)
return (ENXIO);
tp = sc->sc_tty;
tp->t_dev = dev;
p = l->l_proc;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
mutex_spin_enter(&tty_lock);
if ((tp->t_state & TS_ISOPEN) == 0) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
if (sc->sc_openflags & TIOCFLAG_CLOCAL)
tp->t_cflag |= CLOCAL;
if (sc->sc_openflags & TIOCFLAG_CRTSCTS)
tp->t_cflag |= CRTSCTS;
if (sc->sc_openflags & TIOCFLAG_MDMBUF)
tp->t_cflag |= MDMBUF;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
sc->sc_rput = sc->sc_rget = sc->sc_rbuf;
ttsetwater(tp);
s1 = splhigh();
sabtty_reset(sc);
sabtty_param(tp, &tp->t_termios);
sc->sc_imr0 = SAB_IMR0_PERR | SAB_IMR0_FERR | SAB_IMR0_PLLA;
SAB_WRITE(sc, SAB_IMR0, sc->sc_imr0);
sc->sc_imr1 = SAB_IMR1_BRK | SAB_IMR1_ALLS | SAB_IMR1_XDU |
SAB_IMR1_TIN | SAB_IMR1_CSC | SAB_IMR1_XMR | SAB_IMR1_XPR;
SAB_WRITE(sc, SAB_IMR1, sc->sc_imr1);
SAB_WRITE(sc, SAB_CCR0, SAB_READ(sc, SAB_CCR0) | SAB_CCR0_PU);
sabtty_cec_wait(sc);
SAB_WRITE(sc, SAB_CMDR, SAB_CMDR_XRES);
sabtty_cec_wait(sc);
SAB_WRITE(sc, SAB_CMDR, SAB_CMDR_RRES);
sabtty_cec_wait(sc);
splx(s1);
sabtty_flush(sc);
if ((sc->sc_openflags & TIOCFLAG_SOFTCAR) ||
(SAB_READ(sc, SAB_VSTR) & SAB_VSTR_CD))
tp->t_state |= TS_CARR_ON;
else
tp->t_state &= ~TS_CARR_ON;
}
if ((flags & O_NONBLOCK) == 0) {
while ((tp->t_cflag & CLOCAL) == 0 &&
(tp->t_state & TS_CARR_ON) == 0) {
int error;
error = ttysleep(tp, &tp->t_rawcv, true, 0);
if (error != 0) {
mutex_spin_exit(&tty_lock);
return (error);
}
}
}
mutex_spin_exit(&tty_lock);
s = (*tp->t_linesw->l_open)(dev, tp);
if (s != 0) {
mutex_spin_enter(&tty_lock);
if (tp->t_state & TS_ISOPEN) {
mutex_spin_exit(&tty_lock);
return (s);
}
if (tp->t_cflag & HUPCL) {
sabtty_mdmctrl(sc, 0, DMSET);
cv_wait(&lbolt, &tty_lock);
}
if ((sc->sc_flags & (SABTTYF_CONS_IN | SABTTYF_CONS_OUT)) == 0) {
/* Flush and power down if we're not the console */
sabtty_flush(sc);
sabtty_reset(sc);
}
mutex_spin_exit(&tty_lock);
}
return (s);
}
int
ucomopen(dev_t dev, int flag, int mode, struct proc *p)
{
int unit = UCOMUNIT(dev);
usbd_status err;
struct ucom_softc *sc;
struct tty *tp;
struct termios t;
int s;
int error;
if (unit >= ucom_cd.cd_ndevs)
return (ENXIO);
sc = ucom_cd.cd_devs[unit];
if (sc == NULL)
return (ENXIO);
if (sc->sc_dying)
return (EIO);
if (ISSET(sc->sc_dev.dv_flags, DVF_ACTIVE) == 0)
return (ENXIO);
/* open the pipes if this is the first open */
ucom_lock(sc);
if (sc->sc_open++ == 0) {
s = splusb();
DPRINTF(("ucomopen: open pipes in=%d out=%d\n",
sc->sc_bulkin_no, sc->sc_bulkout_no));
DPRINTF(("ucomopen: hid %p pipes in=%p out=%p\n",
sc->sc_uhidev, sc->sc_ipipe, sc->sc_opipe));
if (sc->sc_bulkin_no != -1) {
/* Open the bulk pipes */
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin_no, 0,
&sc->sc_bulkin_pipe);
if (err) {
DPRINTF(("%s: open bulk out error (addr %d), err=%s\n",
sc->sc_dev.dv_xname, sc->sc_bulkin_no,
usbd_errstr(err)));
error = EIO;
goto fail_0;
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout_no,
USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
if (err) {
DPRINTF(("%s: open bulk in error (addr %d), err=%s\n",
sc->sc_dev.dv_xname, sc->sc_bulkout_no,
usbd_errstr(err)));
error = EIO;
goto fail_1;
}
/* Allocate a request and an input buffer and start reading. */
sc->sc_ixfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_ixfer == NULL) {
error = ENOMEM;
goto fail_2;
}
sc->sc_ibuf = usbd_alloc_buffer(sc->sc_ixfer,
sc->sc_ibufsizepad);
if (sc->sc_ibuf == NULL) {
error = ENOMEM;
goto fail_2;
}
sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_oxfer == NULL) {
error = ENOMEM;
goto fail_3;
}
} else {
/*
* input/output pipes and xfers already allocated
* as is the input buffer.
*/
sc->sc_ipipe = sc->sc_uhidev->sc_ipipe;
sc->sc_ixfer = sc->sc_uhidev->sc_ixfer;
sc->sc_opipe = sc->sc_uhidev->sc_opipe;
sc->sc_oxfer = sc->sc_uhidev->sc_oxfer;
}
sc->sc_obuf = usbd_alloc_buffer(sc->sc_oxfer,
sc->sc_obufsize + sc->sc_opkthdrlen);
if (sc->sc_obuf == NULL) {
error = ENOMEM;
goto fail_4;
}
if (sc->sc_methods->ucom_open != NULL) {
error = sc->sc_methods->ucom_open(sc->sc_parent,
sc->sc_portno);
if (error) {
ucom_cleanup(sc);
splx(s);
ucom_unlock(sc);
return (error);
}
}
ucom_status_change(sc);
ucomstartread(sc);
splx(s);
}
ucom_unlock(sc);
s = spltty();
tp = sc->sc_tty;
splx(s);
DPRINTF(("ucomopen: unit=%d, tp=%p\n", unit, tp));
tp->t_dev = dev;
if (!ISSET(tp->t_state, TS_ISOPEN)) {
SET(tp->t_state, TS_WOPEN);
ttychars(tp);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
SET(t.c_cflag, MDMBUF);
/* Make sure ucomparam() will do something. */
tp->t_ospeed = 0;
(void) ucomparam(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
s = spltty();
ttsetwater(tp);
/*
* Turn on DTR. We must always do this, even if carrier is not
* present, because otherwise we'd have to use TIOCSDTR
* immediately after setting CLOCAL, which applications do not
* expect. We always assert DTR while the device is open
* unless explicitly requested to deassert it.
*/
ucom_dtr(sc, 1);
/* XXX CLR(sc->sc_rx_flags, RX_ANY_BLOCK);*/
ucom_hwiflow(sc);
if (ISSET(sc->sc_swflags, TIOCFLAG_SOFTCAR) || UCOMCUA(dev) ||
ISSET(sc->sc_msr, UMSR_DCD) || ISSET(tp->t_cflag, MDMBUF))
SET(tp->t_state, TS_CARR_ON);
else
CLR(tp->t_state, TS_CARR_ON);
} else if (ISSET(tp->t_state, TS_XCLUDE) && p->p_ucred->cr_uid != 0) {
error = EBUSY;
goto bad;
} else
s = spltty();
if (UCOMCUA(dev)) {
if (ISSET(tp->t_state, TS_ISOPEN)) {
/* Someone is already dialed in */
error = EBUSY;
goto bad1;
}
sc->sc_cua = 1;
} else {
/* tty (not cua) device, wait for carrier */
if (ISSET(flag, O_NONBLOCK)) {
if (sc->sc_cua) {
error = EBUSY;
goto bad1;
}
} else {
while (sc->sc_cua || (!ISSET(tp->t_cflag, CLOCAL) &&
!ISSET(tp->t_state, TS_CARR_ON))) {
SET(tp->t_state, TS_WOPEN);
error = ttysleep(tp, &tp->t_rawq,
TTIPRI | PCATCH, ttopen, 0);
/*
* If TS_WOPEN has been reset, that means the
* cua device has been closed. We don't want
* to fail in that case, so just go around
* again.
*/
if (error && ISSET(tp->t_state, TS_WOPEN)) {
CLR(tp->t_state, TS_WOPEN);
goto bad1;
}
}
}
}
splx(s);
error = ttyopen(UCOMUNIT(dev), tp);
if (error)
goto bad;
error = (*LINESW(tp, l_open))(dev, tp);
if (error)
goto bad;
return (0);
fail_4:
if (sc->sc_uhidev == NULL)
usbd_free_xfer(sc->sc_oxfer);
sc->sc_oxfer = NULL;
fail_3:
usbd_free_xfer(sc->sc_ixfer);
sc->sc_ixfer = NULL;
fail_2:
usbd_close_pipe(sc->sc_bulkout_pipe);
sc->sc_bulkout_pipe = NULL;
fail_1:
usbd_close_pipe(sc->sc_bulkin_pipe);
sc->sc_bulkin_pipe = NULL;
fail_0:
splx(s);
ucom_unlock(sc);
return (error);
bad1:
splx(s);
bad:
ucom_lock(sc);
ucom_cleanup(sc);
ucom_unlock(sc);
return (error);
}
int
zstty_attach(device_t dev)
{
struct zstty_softc *sc;
struct tty *tp;
char mode[32];
int reset;
int baud;
int clen;
char parity;
int stop;
char c;
sc = device_get_softc(dev);
mtx_init(&sc->sc_mtx, "zstty", NULL, MTX_SPIN);
sc->sc_dev = dev;
sc->sc_iput = sc->sc_iget = sc->sc_ibuf;
sc->sc_oget = sc->sc_obuf;
tp = ttymalloc(NULL);
sc->sc_si = make_dev(&zstty_cdevsw, device_get_unit(dev),
UID_ROOT, GID_WHEEL, 0600, "%s", device_get_desc(dev));
sc->sc_si->si_drv1 = sc;
sc->sc_si->si_tty = tp;
tp->t_dev = sc->sc_si;
sc->sc_tty = tp;
tp->t_oproc = zsttystart;
tp->t_param = zsttyparam;
tp->t_stop = zsttystop;
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_cflag = CREAD | CLOCAL | CS8;
tp->t_ospeed = TTYDEF_SPEED;
tp->t_ispeed = TTYDEF_SPEED;
if (zstty_console(dev, mode, sizeof(mode))) {
ttychars(tp);
/* format: 9600,8,n,1,- */
if (sscanf(mode, "%d,%d,%c,%d,%c", &baud, &clen, &parity,
&stop, &c) == 5) {
tp->t_ospeed = baud;
tp->t_ispeed = baud;
tp->t_cflag = CREAD | CLOCAL;
switch (clen) {
case 5:
tp->t_cflag |= CS5;
break;
case 6:
tp->t_cflag |= CS6;
break;
case 7:
tp->t_cflag |= CS7;
break;
case 8:
default:
tp->t_cflag |= CS8;
break;
}
if (parity == 'e')
tp->t_cflag |= PARENB;
else if (parity == 'o')
tp->t_cflag |= PARENB | PARODD;
if (stop == 2)
tp->t_cflag |= CSTOPB;
}
device_printf(dev, "console %s\n", mode);
sc->sc_console = 1;
zstty_cons = sc;
} else {
if ((device_get_unit(dev) & 1) == 0)
reset = ZSWR9_A_RESET;
else
reset = ZSWR9_B_RESET;
ZS_WRITE_REG(sc, 9, reset);
}
return (0);
}
int
at91dbgu_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct at91dbgu_softc *sc;
struct tty *tp;
int s, s2;
int error;
sc = device_lookup_private(&at91dbgu_cd, COMUNIT(dev));
if (sc == NULL || !ISSET(sc->sc_hwflags, COM_HW_DEV_OK) ||
sc->sc_rbuf == NULL)
return (ENXIO);
if (!device_is_active(sc->sc_dev))
return (ENXIO);
#ifdef KGDB
/*
* If this is the kgdb port, no other use is permitted.
*/
if (ISSET(sc->sc_hwflags, COM_HW_KGDB))
return (EBUSY);
#endif
tp = sc->sc_tty;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
s = spltty();
/*
* Do the following iff this is a first open.
*/
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
s2 = splserial();
if (sc->enable) {
if ((*sc->enable)(sc)) {
splx(s2);
splx(s);
printf("%s: device enable failed\n",
device_xname(sc->sc_dev));
return (EIO);
}
sc->enabled = 1;
#if 0
/* XXXXXXXXXXXXXXX */
com_config(sc);
#endif
}
/* Turn on interrupts. */
sc->sc_ier |= DBGU_INT_RXRDY;
DBGUREG(DBGU_IER) = DBGU_INT_RXRDY;
#if 0
/* Fetch the current modem control status, needed later. */
sc->sc_msr = bus_space_read_1(sc->sc_iot, sc->sc_ioh, com_msr);
/* Clear PPS capture state on first open. */
sc->sc_ppsmask = 0;
sc->ppsparam.mode = 0;
#endif
splx(s2);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
t.c_ospeed = dbgu_cn_sc.sc_ospeed;
t.c_cflag = dbgu_cn_sc.sc_cflag;
} else {
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
}
if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
SET(t.c_cflag, MDMBUF);
/* Make sure at91dbgu_param() will do something. */
tp->t_ospeed = 0;
(void) at91dbgu_param(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
s2 = splserial();
/* Clear the input ring, and unblock. */
sc->sc_rbput = sc->sc_rbget = sc->sc_rbuf;
sc->sc_rbavail = AT91DBGU_RING_SIZE;
at91dbgu_iflush(sc);
CLR(sc->sc_rx_flags, RX_ANY_BLOCK);
#ifdef COM_DEBUG
if (at91dbgu_debug)
comstatus(sc, "at91dbgu_open ");
#endif
splx(s2);
}
splx(s);
error = ttyopen(tp, COMDIALOUT(dev), ISSET(flag, O_NONBLOCK));
if (error)
goto bad;
error = (*tp->t_linesw->l_open)(dev, tp);
if (error)
goto bad;
return (0);
bad:
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
at91dbgu_shutdown(sc);
}
return (error);
}
/*
* czttyopen:
*
* Open a Cyclades-Z serial port.
*/
static int
czttyopen(dev_t dev, int flags, int mode, struct lwp *l)
{
struct cztty_softc *sc = CZTTY_SOFTC(dev);
struct cz_softc *cz;
struct tty *tp;
int s, error;
if (sc == NULL)
return (ENXIO);
if (sc->sc_channel == CZTTY_CHANNEL_DEAD)
return (ENXIO);
cz = CZTTY_CZ(sc);
tp = sc->sc_tty;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
s = spltty();
/*
* Do the following iff this is a first open.
*/
if (!ISSET(tp->t_state, TS_ISOPEN) && (tp->t_wopen == 0)) {
struct termios t;
tp->t_dev = dev;
/* If we're turning things on, enable interrupts */
if ((cz->cz_nopenchan++ == 0) && (cz->cz_ih == NULL)) {
#ifdef CZ_DEBUG
printf("%s: Enabling polling.\n",
device_xname(cz->cz_dev));
#endif
callout_reset(&cz->cz_callout, cz_timeout_ticks,
cz_poll, cz);
}
/*
* Enable the channel. Don't actually ring the
* doorbell here; czttyparam() will do it for us.
*/
cz_wait_pci_doorbell(cz, "czopen");
CZTTY_CHAN_WRITE(sc, CHNCTL_OP_MODE, C_CH_ENABLE);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
/*
* Reset the input and output rings. Do this before
* we call czttyparam(), as that function enables
* the channel.
*/
CZTTY_BUF_WRITE(sc, BUFCTL_RX_GET,
CZTTY_BUF_READ(sc, BUFCTL_RX_PUT));
CZTTY_BUF_WRITE(sc, BUFCTL_TX_PUT,
CZTTY_BUF_READ(sc, BUFCTL_TX_GET));
/* Make sure czttyparam() will see changes. */
tp->t_ospeed = 0;
(void) czttyparam(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
/*
* Turn on DTR. We must always do this, even if carrier is not
* present, because otherwise we'd have to use TIOCSDTR
* immediately after setting CLOCAL, which applications do not
* expect. We always assert DTR while the device is open
* unless explicitly requested to deassert it.
*/
cztty_modem(sc, 1);
}
splx(s);
error = ttyopen(tp, CZTTY_DIALOUT(dev), ISSET(flags, O_NONBLOCK));
if (error)
goto bad;
error = (*tp->t_linesw->l_open)(dev, tp);
if (error)
goto bad;
return (0);
bad:
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
cztty_shutdown(sc);
}
return (error);
}
/*
* open routine. returns zero if successful, else error code
*/
int
mttyopen(dev_t dev, int flags, int mode, struct proc *p)
{
int card = MAGMA_CARD(dev);
int port = MAGMA_PORT(dev);
struct mtty_softc *ms;
struct mtty_port *mp;
struct tty *tp;
struct cd1400 *cd;
int s;
if (card >= mtty_cd.cd_ndevs || (ms = mtty_cd.cd_devs[card]) == NULL
|| port >= ms->ms_nports)
return (ENXIO); /* device not configured */
mp = &ms->ms_port[port];
tp = mp->mp_tty;
tp->t_dev = dev;
if (!ISSET(tp->t_state, TS_ISOPEN)) {
SET(tp->t_state, TS_WOPEN);
/* set defaults */
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
if (ISSET(mp->mp_openflags, TIOCFLAG_CLOCAL))
SET(tp->t_cflag, CLOCAL);
if (ISSET(mp->mp_openflags, TIOCFLAG_CRTSCTS))
SET(tp->t_cflag, CRTSCTS);
if (ISSET(mp->mp_openflags, TIOCFLAG_MDMBUF))
SET(tp->t_cflag, MDMBUF);
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
/* init ring buffer */
mp->mp_rput = mp->mp_rget = mp->mp_rbuf;
s = spltty();
/* reset CD1400 channel */
cd = mp->mp_cd1400;
CD1400_WRITE_REG(cd, CD1400_CAR, mp->mp_channel);
cd1400_write_ccr(cd, CD1400_CCR_CMDRESET);
/* encode the port number in top half of LIVR */
CD1400_WRITE_REG(cd, CD1400_LIVR, port << 4);
/* sets parameters and raises DTR */
(void)mtty_param(tp, &tp->t_termios);
/* set tty watermarks */
ttsetwater(tp);
/* enable service requests */
CD1400_WRITE_REG(cd, CD1400_SRER, CD1400_SRER_RXDATA | CD1400_SRER_MDMCH);
/* tell the tty about the carrier status */
if (ISSET(mp->mp_openflags, TIOCFLAG_SOFTCAR) || mp->mp_carrier)
SET(tp->t_state, TS_CARR_ON);
else
CLR(tp->t_state, TS_CARR_ON);
} else if (ISSET(tp->t_state, TS_XCLUDE) && suser(p, 0) != 0) {
return (EBUSY); /* superuser can break exclusive access */
} else {
s = spltty();
}
/* wait for carrier if necessary */
if (!ISSET(flags, O_NONBLOCK)) {
while (!ISSET(tp->t_cflag, CLOCAL) && !ISSET(tp->t_state, TS_CARR_ON)) {
int error;
SET(tp->t_state, TS_WOPEN);
error = ttysleep(tp, &tp->t_rawq, TTIPRI | PCATCH, "mttydcd", 0);
if (error != 0) {
splx(s);
CLR(tp->t_state, TS_WOPEN);
return (error);
}
}
}
splx(s);
return ((*linesw[tp->t_line].l_open)(dev, tp, p));
}
int
stty_open(dev_t dev, int flags, int mode, struct lwp *l)
{
struct spif_softc *csc;
struct stty_softc *sc;
struct stty_port *sp;
struct tty *tp;
int card = SPIF_CARD(dev);
int port = SPIF_PORT(dev);
sc = device_lookup_private(&stty_cd, card);
csc = device_lookup_private(&spif_cd, card);
if (sc == NULL || csc == NULL)
return (ENXIO);
if (port >= sc->sc_nports)
return (ENXIO);
sp = &sc->sc_port[port];
tp = sp->sp_tty;
tp->t_dev = dev;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
mutex_spin_enter(&tty_lock);
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
if (ISSET(sp->sp_openflags, TIOCFLAG_CLOCAL))
SET(tp->t_cflag, CLOCAL);
if (ISSET(sp->sp_openflags, TIOCFLAG_CRTSCTS))
SET(tp->t_cflag, CRTSCTS);
if (ISSET(sp->sp_openflags, TIOCFLAG_MDMBUF))
SET(tp->t_cflag, MDMBUF);
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
sp->sp_rput = sp->sp_rget = sp->sp_rbuf;
STC_WRITE(csc, STC_CAR, sp->sp_channel);
stty_write_ccr(csc, CD180_CCR_CMD_RESET|CD180_CCR_RESETCHAN);
STC_WRITE(csc, STC_CAR, sp->sp_channel);
stty_param(tp, &tp->t_termios);
ttsetwater(tp);
STC_WRITE(csc, STC_SRER, CD180_SRER_CD | CD180_SRER_RXD);
if (ISSET(sp->sp_openflags, TIOCFLAG_SOFTCAR) || sp->sp_carrier)
SET(tp->t_state, TS_CARR_ON);
else
CLR(tp->t_state, TS_CARR_ON);
}
if (!ISSET(flags, O_NONBLOCK)) {
while (!ISSET(tp->t_cflag, CLOCAL) &&
!ISSET(tp->t_state, TS_CARR_ON)) {
int error;
error = ttysleep(tp, &tp->t_rawcv, true, 0);
if (error != 0) {
mutex_spin_exit(&tty_lock);
return (error);
}
}
}
mutex_spin_exit(&tty_lock);
return ((*tp->t_linesw->l_open)(dev, tp));
}
int
at91usart_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct at91usart_softc *sc;
struct tty *tp;
int s;
int error;
sc = device_lookup_private(&at91usart_cd, COMUNIT(dev));
if (sc == NULL || !ISSET(sc->sc_hwflags, COM_HW_DEV_OK))
return (ENXIO);
if (!device_is_active(sc->sc_dev))
return (ENXIO);
#ifdef KGDB
/*
* If this is the kgdb port, no other use is permitted.
*/
if (ISSET(sc->sc_hwflags, COM_HW_KGDB))
return (EBUSY);
#endif
tp = sc->sc_tty;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
s = spltty();
/*
* Do the following iff this is a first open.
*/
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
if (sc->enable) {
if ((*sc->enable)(sc)) {
splx(s);
printf("%s: device enable failed\n",
device_xname(sc->sc_dev));
return (EIO);
}
sc->enabled = 1;
#if 0
/* XXXXXXXXXXXXXXX */
com_config(sc);
#endif
}
/* reset fifos: */
AT91PDC_RESET_FIFO(sc->sc_iot, sc->sc_ioh, sc->sc_dmat, US_PDC, &sc->sc_rx_fifo, 0);
AT91PDC_RESET_FIFO(sc->sc_iot, sc->sc_ioh, sc->sc_dmat, US_PDC, &sc->sc_tx_fifo, 1);
/* reset receive */
at91usart_writereg(sc, US_CR, US_CR_RSTSTA | US_CR_STTTO);
/* Turn on interrupts. */
sc->sc_ier = US_CSR_ENDRX|US_CSR_RXBUFF|US_CSR_TIMEOUT|US_CSR_RXBRK;
at91usart_writereg(sc, US_IER, sc->sc_ier);
/* enable DMA: */
at91usart_writereg(sc, US_PDC + PDC_PTCR, PDC_PTCR_RXTEN);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
/* if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
t.c_ospeed = usart_cn_sc.sc_ospeed;
t.c_cflag = usart_cn_sc.sc_cflag;
} else*/ {
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
}
if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
SET(t.c_cflag, MDMBUF);
/* Make sure at91usart_param() will do something. */
tp->t_ospeed = 0;
(void) at91usart_param(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
/* and unblock. */
CLR(sc->sc_rx_flags, RX_ANY_BLOCK);
#ifdef COM_DEBUG
if (at91usart_debug)
comstatus(sc, "at91usart_open ");
#endif
}
splx(s);
error = ttyopen(tp, COMDIALOUT(dev), ISSET(flag, O_NONBLOCK));
if (error)
goto bad;
error = (*tp->t_linesw->l_open)(dev, tp);
if (error)
goto bad;
return (0);
bad:
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
at91usart_shutdown(sc);
}
return (error);
}
/*
* Open a zs serial port.
*/
int
zsopen(dev_t dev, int flags, int mode, struct lwp *l)
{
struct tty *tp;
struct zs_chanstate *cs;
struct zs_softc *sc;
int unit = ZS_UNIT(dev);
int zs = unit >> 1;
int error, s;
sc = device_lookup_private(&zs_cd, zs);
if (sc == NULL)
return ENXIO;
cs = sc->sc_cs[unit & 1];
/*
* When port A (ser02) is selected on the TT, make sure
* the port is enabled.
*/
if ((machineid & ATARI_TT) && !(unit & 1))
ym2149_ser2(1);
if (cs->cs_rbuf == NULL) {
cs->cs_rbuf = malloc(ZLRB_RING_SIZE * sizeof(int), M_DEVBUF,
M_WAITOK);
}
tp = cs->cs_ttyp;
if (tp == NULL) {
cs->cs_ttyp = tp = tty_alloc();
tty_attach(tp);
tp->t_dev = dev;
tp->t_oproc = zsstart;
tp->t_param = zsparam;
}
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return EBUSY;
s = spltty();
/*
* Do the following iff this is a first open.
*/
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
if (tp->t_ispeed == 0) {
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
}
ttychars(tp);
ttsetwater(tp);
(void)zsparam(tp, &tp->t_termios);
/*
* Turn on DTR. We must always do this, even if carrier is not
* present, because otherwise we'd have to use TIOCSDTR
* immediately after setting CLOCAL, which applications do not
* expect. We always assert DTR while the device is open
* unless explicitly requested to deassert it.
*/
zs_modem(cs, ZSWR5_RTS|ZSWR5_DTR, DMSET);
/* May never get a status intr. if DCD already on. -gwr */
if (((cs->cs_rr0 = cs->cs_zc->zc_csr) & ZSRR0_DCD) != 0)
tp->t_state |= TS_CARR_ON;
if (cs->cs_softcar)
tp->t_state |= TS_CARR_ON;
}
splx(s);
error = ttyopen(tp, ZS_DIALOUT(dev), (flags & O_NONBLOCK));
if (error)
goto bad;
error = tp->t_linesw->l_open(dev, tp);
if (error)
goto bad;
return 0;
bad:
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
zs_shutdown(cs);
}
return error;
}
int
mfcsopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct tty *tp;
struct mfcs_softc *sc;
int unit, error;
error = 0;
unit = dev & 0x1f;
sc = device_lookup_private(&mfcs_cd, unit);
if (sc == NULL || (mfcs_active & (1 << unit)) == 0)
return (ENXIO);
if (sc->sc_tty)
tp = sc->sc_tty;
else {
tp = sc->sc_tty = tty_alloc();
tty_attach(tp);
}
tp->t_oproc = (void (*) (struct tty *)) mfcsstart;
tp->t_param = mfcsparam;
tp->t_dev = dev;
tp->t_hwiflow = mfcshwiflow;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
mutex_spin_enter(&tty_lock);
if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
ttychars(tp);
if (tp->t_ispeed == 0) {
/*
* only when cleared do we reset to defaults.
*/
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = mfcsdefaultrate;
}
/*
* do these all the time
*/
if (sc->swflags & TIOCFLAG_CLOCAL)
tp->t_cflag |= CLOCAL;
if (sc->swflags & TIOCFLAG_CRTSCTS)
tp->t_cflag |= CRTSCTS;
if (sc->swflags & TIOCFLAG_MDMBUF)
tp->t_cflag |= MDMBUF;
mfcsparam(tp, &tp->t_termios);
ttsetwater(tp);
(void)mfcsmctl(dev, TIOCM_DTR | TIOCM_RTS, DMSET);
if ((SWFLAGS(dev) & TIOCFLAG_SOFTCAR) ||
(mfcsmctl(dev, 0, DMGET) & TIOCM_CD))
tp->t_state |= TS_CARR_ON;
else
tp->t_state &= ~TS_CARR_ON;
}
/*
* if NONBLOCK requested, ignore carrier
*/
if (flag & O_NONBLOCK)
goto done;
/*
* block waiting for carrier
*/
while ((tp->t_state & TS_CARR_ON) == 0 && (tp->t_cflag & CLOCAL) == 0) {
tp->t_wopen++;
error = ttysleep(tp, &tp->t_rawcv, true, 0);
tp->t_wopen--;
if (error) {
mutex_spin_exit(&tty_lock);
return(error);
}
}
done:
/* This is a way to handle lost XON characters */
if ((flag & O_TRUNC) && (tp->t_state & TS_TTSTOP)) {
tp->t_state &= ~TS_TTSTOP;
ttstart (tp);
}
/*
* Reset the tty pointer, as there could have been a dialout
* use of the tty with a dialin open waiting.
*/
tp->t_dev = dev;
mutex_spin_exit(&tty_lock);
return tp->t_linesw->l_open(dev, tp);
}
int
ucomopen(dev_t dev, int flag, int mode, struct lwp *l)
{
int unit = UCOMUNIT(dev);
usbd_status err;
struct ucom_softc *sc = device_lookup_private(&ucom_cd, unit);
struct ucom_buffer *ub;
struct tty *tp;
int s, i;
int error;
if (sc == NULL)
return (ENXIO);
if (sc->sc_dying)
return (EIO);
if (!device_is_active(sc->sc_dev))
return (ENXIO);
tp = sc->sc_tty;
DPRINTF(("ucomopen: unit=%d, tp=%p\n", unit, tp));
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
s = spltty();
/*
* Do the following iff this is a first open.
*/
while (sc->sc_opening)
tsleep(&sc->sc_opening, PRIBIO, "ucomop", 0);
if (sc->sc_dying) {
splx(s);
return (EIO);
}
sc->sc_opening = 1;
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
struct termios t;
tp->t_dev = dev;
if (sc->sc_methods->ucom_open != NULL) {
error = sc->sc_methods->ucom_open(sc->sc_parent,
sc->sc_portno);
if (error) {
ucom_cleanup(sc);
sc->sc_opening = 0;
wakeup(&sc->sc_opening);
splx(s);
return (error);
}
}
ucom_status_change(sc);
/*
* Initialize the termios status to the defaults. Add in the
* sticky bits from TIOCSFLAGS.
*/
t.c_ispeed = 0;
t.c_ospeed = TTYDEF_SPEED;
t.c_cflag = TTYDEF_CFLAG;
if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
SET(t.c_cflag, MDMBUF);
/* Make sure ucomparam() will do something. */
tp->t_ospeed = 0;
(void) ucomparam(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
/*
* Turn on DTR. We must always do this, even if carrier is not
* present, because otherwise we'd have to use TIOCSDTR
* immediately after setting CLOCAL, which applications do not
* expect. We always assert DTR while the device is open
* unless explicitly requested to deassert it. Ditto RTS.
*/
ucom_dtr(sc, 1);
ucom_rts(sc, 1);
DPRINTF(("ucomopen: open pipes in=%d out=%d\n",
sc->sc_bulkin_no, sc->sc_bulkout_no));
/* Open the bulk pipes */
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin_no,
USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe);
if (err) {
DPRINTF(("%s: open bulk in error (addr %d), err=%s\n",
USBDEVNAME(sc->sc_dev), sc->sc_bulkin_no,
usbd_errstr(err)));
error = EIO;
goto fail_0;
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout_no,
USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
if (err) {
DPRINTF(("%s: open bulk out error (addr %d), err=%s\n",
USBDEVNAME(sc->sc_dev), sc->sc_bulkout_no,
usbd_errstr(err)));
error = EIO;
goto fail_1;
}
sc->sc_rx_unblock = 0;
sc->sc_rx_stopped = 0;
sc->sc_tx_stopped = 0;
memset(sc->sc_ibuff, 0, sizeof(sc->sc_ibuff));
memset(sc->sc_obuff, 0, sizeof(sc->sc_obuff));
SIMPLEQ_INIT(&sc->sc_ibuff_empty);
SIMPLEQ_INIT(&sc->sc_ibuff_full);
SIMPLEQ_INIT(&sc->sc_obuff_free);
SIMPLEQ_INIT(&sc->sc_obuff_full);
/* Allocate input buffers */
for (ub = &sc->sc_ibuff[0]; ub != &sc->sc_ibuff[UCOM_IN_BUFFS];
ub++) {
ub->ub_xfer = usbd_alloc_xfer(sc->sc_udev);
if (ub->ub_xfer == NULL) {
error = ENOMEM;
goto fail_2;
}
ub->ub_data = usbd_alloc_buffer(ub->ub_xfer,
sc->sc_ibufsizepad);
if (ub->ub_data == NULL) {
error = ENOMEM;
goto fail_2;
}
if (ucomsubmitread(sc, ub) != USBD_NORMAL_COMPLETION) {
error = EIO;
goto fail_2;
}
}
for (ub = &sc->sc_obuff[0]; ub != &sc->sc_obuff[UCOM_OUT_BUFFS];
ub++) {
ub->ub_xfer = usbd_alloc_xfer(sc->sc_udev);
if (ub->ub_xfer == NULL) {
error = ENOMEM;
goto fail_2;
}
ub->ub_data = usbd_alloc_buffer(ub->ub_xfer,
sc->sc_obufsize);
if (ub->ub_data == NULL) {
error = ENOMEM;
goto fail_2;
}
SIMPLEQ_INSERT_TAIL(&sc->sc_obuff_free, ub, ub_link);
}
}
sc->sc_opening = 0;
wakeup(&sc->sc_opening);
splx(s);
error = ttyopen(tp, UCOMDIALOUT(dev), ISSET(flag, O_NONBLOCK));
if (error)
goto bad;
error = (*tp->t_linesw->l_open)(dev, tp);
if (error)
goto bad;
return (0);
fail_2:
usbd_abort_pipe(sc->sc_bulkin_pipe);
for (i = 0; i < UCOM_IN_BUFFS; i++) {
if (sc->sc_ibuff[i].ub_xfer != NULL) {
usbd_free_xfer(sc->sc_ibuff[i].ub_xfer);
sc->sc_ibuff[i].ub_xfer = NULL;
sc->sc_ibuff[i].ub_data = NULL;
}
}
usbd_abort_pipe(sc->sc_bulkout_pipe);
for (i = 0; i < UCOM_OUT_BUFFS; i++) {
if (sc->sc_obuff[i].ub_xfer != NULL) {
usbd_free_xfer(sc->sc_obuff[i].ub_xfer);
sc->sc_obuff[i].ub_xfer = NULL;
sc->sc_obuff[i].ub_data = NULL;
}
}
usbd_close_pipe(sc->sc_bulkout_pipe);
sc->sc_bulkout_pipe = NULL;
fail_1:
usbd_close_pipe(sc->sc_bulkin_pipe);
sc->sc_bulkin_pipe = NULL;
fail_0:
sc->sc_opening = 0;
wakeup(&sc->sc_opening);
splx(s);
return (error);
bad:
s = spltty();
CLR(tp->t_state, TS_BUSY);
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
/*
* We failed to open the device, and nobody else had it opened.
* Clean up the state as appropriate.
*/
ucom_cleanup(sc);
}
splx(s);
return (error);
}
/*ARGSUSED*/
static int
nmdmopen(struct dev_open_args *ap)
{
cdev_t dev = ap->a_head.a_dev;
struct tty *tp, *tp2;
int error;
int minr;
#if 0
cdev_t nextdev;
#endif
struct nm_softc *pti;
int is_b;
int pair;
struct softpart *ourpart, *otherpart;
minr = lminor(dev);
pair = minr >> 1;
is_b = minr & 1;
#if 0
/*
* XXX: Gross hack for DEVFS:
* If we openned this device, ensure we have the
* next one too, so people can open it.
*/
if (pair < 127) {
nextdev = makedev(major(dev), (pair+pair) + 1);
if (!nextdev->si_drv1) {
nmdminit(pair + 1);
}
}
#endif
if (!dev->si_drv1)
nmdminit(pair);
if (!dev->si_drv1)
return(ENXIO);
lwkt_gettoken(&tty_token);
pti = dev->si_drv1;
if (is_b)
tp = &pti->part2.nm_tty;
else
tp = &pti->part1.nm_tty;
GETPARTS(tp, ourpart, otherpart);
tp2 = &otherpart->nm_tty;
ourpart->modemsignals |= TIOCM_LE;
if ((tp->t_state & TS_ISOPEN) == 0) {
ttychars(tp); /* Set up default chars */
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
} else if (tp->t_state & TS_XCLUDE && priv_check_cred(ap->a_cred, PRIV_ROOT, 0)) {
lwkt_reltoken(&tty_token);
return (EBUSY);
} else if (pti->pt_prison != ap->a_cred->cr_prison) {
lwkt_reltoken(&tty_token);
return (EBUSY);
}
/*
* If the other side is open we have carrier
*/
if (tp2->t_state & TS_ISOPEN) {
(void)(*linesw[tp->t_line].l_modem)(tp, 1);
}
/*
* And the other side gets carrier as we are now open.
*/
(void)(*linesw[tp2->t_line].l_modem)(tp2, 1);
/* External processing makes no sense here */
tp->t_lflag &= ~EXTPROC;
/*
* Wait here if we don't have carrier.
*/
#if 0
while ((tp->t_state & TS_CARR_ON) == 0) {
if (flag & FNONBLOCK)
break;
error = ttysleep(tp, TSA_CARR_ON(tp), PCATCH, "nmdopn", 0);
if (error) {
lwkt_reltoken(&tty_token);
return (error);
}
}
#endif
/*
* Give the line disciplin a chance to set this end up.
*/
error = (*linesw[tp->t_line].l_open)(dev, tp);
/*
* Wake up the other side.
* Theoretically not needed.
*/
ourpart->modemsignals |= TIOCM_DTR;
nmdm_crossover(pti, ourpart, otherpart);
if (error == 0)
wakeup_other(tp, FREAD|FWRITE); /* XXX */
lwkt_reltoken(&tty_token);
return (error);
}
