luna68k/dev/siotty.c

157 	struct tty *tp;
165 	tp = sc->sc_tty;
178 			if (tp == NULL || (tp->t_state & TS_ISOPEN) == 0)
181 			if ((rr & RR_BREAK) && tp->t_dev == cn_tab->cn_dev) {
186 			(*tp->t_linesw->l_rint)(code, tp);
191 		if (tp != NULL) {
192 			tp->t_state &= ~(TS_BUSY|TS_FLUSH);
193 			(*tp->t_linesw->l_start)(tp);
199 siostart(struct tty *tp)
204 	sc = device_lookup_private(&siotty_cd, minor(tp->t_dev));
206 	if (tp->t_state & (TS_BUSY|TS_TIMEOUT|TS_TTSTOP))
208 	if (!ttypull(tp))
210 	tp->t_state |= TS_BUSY;
212 		if ((c = getc(&tp->t_outq)) == -1)
221 siostop(struct tty *tp, int flag)
226         if (TS_BUSY == (tp->t_state & (TS_BUSY|TS_TTSTOP))) {
230 		tp->t_state |= TS_FLUSH;
236 sioparam(struct tty *tp, struct termios *t)
241 	sc = device_lookup_private(&siotty_cd, minor(tp->t_dev));
260 	if (tp->t_ospeed == t->c_ospeed && tp->t_cflag == t->c_cflag)
263 	tp->t_ispeed = t->c_ispeed;
264 	tp->t_ospeed = t->c_ospeed;
265 	tp->t_cflag = t->c_cflag;
269 	switch (tp->t_cflag & CSIZE) {
277 	if (tp->t_cflag & PARENB) {
279 		if ((tp->t_cflag & PARODD) == 0)
282 	wr4 |= (tp->t_cflag & CSTOPB) ? WR4_STOP2 : WR4_STOP1;
345 	struct tty *tp;
351 	if ((tp = sc->sc_tty) == NULL) {
352 		tp = sc->sc_tty = tty_alloc();
353 		tty_attach(tp);
356 	tp->t_oproc = siostart;
357 	tp->t_param = sioparam;
358 	tp->t_hwiflow = NULL /* XXX siohwiflow XXX */;
359 	tp->t_dev = dev;
361 	if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
364 	if ((tp->t_state & TS_ISOPEN) == 0 && tp->t_wopen == 0) {
369 		tp->t_ospeed = 0; /* force register update */
370 		(void)sioparam(tp, &t);
371 		tp->t_iflag = TTYDEF_IFLAG;
372 		tp->t_oflag = TTYDEF_OFLAG;
373 		tp->t_lflag = TTYDEF_LFLAG;
374 		ttychars(tp);
375 		ttsetwater(tp);
378 		tp->t_state |= TS_CARR_ON; /* assume detected all the time */
381 		    || (tp->t_cflag & MDMBUF)
383 			tp->t_state |= TS_CARR_ON;
385 			tp->t_state &= ~TS_CARR_ON;
389 	error = ttyopen(tp, 0, (flag & O_NONBLOCK));
392 	return (*tp->t_linesw->l_open)(dev, tp);
399 	struct tty *tp = sc->sc_tty;
402 	(*tp->t_linesw->l_close)(tp, flag);
407 	if ((tp->t_cflag & HUPCL)
408 	    || tp->t_wopen || (tp->t_state & TS_ISOPEN) == 0) {
415 	return ttyclose(tp);
422 	struct tty *tp;
425 	tp = sc->sc_tty;
426 	return (*tp->t_linesw->l_read)(tp, uio, flag);
433 	struct tty *tp;
436 	tp = sc->sc_tty;
437 	return (*tp->t_linesw->l_write)(tp, uio, flag);
444 	struct tty *tp;
447 	tp = sc->sc_tty;
448 	return ((*tp->t_linesw->l_poll)(tp, events, l));
455 	struct tty *tp;
459 	tp = sc->sc_tty;
460 	error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l);
464 	error = ttioctl(tp, cmd, data, flag, l);