dev/cy/cy.c

205 	struct tty	*tp;	/* cross reference */
240 static	int	cyparam(struct tty *tp, struct termios *t);
245 static	void	cystart(struct tty *tp);
246 static	void	comstop(struct tty *tp, int rw);
248 static	void	disc_optim(struct tty *tp, struct termios *t,
351 	struct tty *tp;
411 			tp = com->tp = ttyalloc();
412 			tp->t_open = cyopen;
413 			tp->t_close = cyclose;
414 			tp->t_oproc = cystart;
415 			tp->t_stop = comstop;
416 			tp->t_param = cyparam;
417 			tp->t_break = cybreak;
418 			tp->t_modem = cymodem;
419 			tp->t_sc = com;
421 			if (cysetwater(com, tp->t_init_in.c_ispeed) != 0) {
436 			ttycreate(tp, TS_CALLOUT, "c%r%r",
448 cyopen(struct tty *tp, struct cdev *dev)
453 	com = tp->t_sc;
488 cyclose(struct tty *tp)
495 	com = tp->t_sc;
515 		tp = com->tp;
516 		if ((tp->t_cflag & HUPCL)
524 		    || (!tp->t_actout
526 		       && !(tp->t_init_in.c_cflag & CLOCAL))
527 		    || !(tp->t_state & TS_ISOPEN)) {
528 			(void)cymodem(tp, 0, SER_DTR);
536 			ttydtrwaitstart(tp);
539 	tp->t_actout = FALSE;
540 	wakeup(&tp->t_actout);
541 	wakeup(TSA_CARR_ON(tp));	/* restart any wopeners */
557 	struct tty	*tp;
560 	tp = com->tp;
561 	if (!(tp->t_state & TS_ISOPEN)) {
566 	if (tp->t_state & TS_CAN_BYPASS_L_RINT) {
584 			if (tp->t_rawq.c_cc + incc > tp->t_ihiwat
586 				|| tp->t_iflag & IXOFF)
587 			    && !(tp->t_state & TS_TBLOCK))
588 				ttyblock(tp);
590 				+= b_to_q((char *)buf, incc, &tp->t_rawq);
594 			tp->t_rawcc += incc;
595 			ttwakeup(tp);
596 			if (tp->t_state & TS_TTSTOP
597 			    && (tp->t_iflag & IXANY
598 				|| tp->t_cc[VSTART] == tp->t_cc[VSTOP])) {
599 				tp->t_state &= ~TS_TTSTOP;
600 				tp->t_lflag &= ~FLUSHO;
601 				cystart(tp);
628 			ttyld_rint(tp, recv_data);
642 	    !(tp->t_state & TS_TBLOCK))
718 			    && com->tp->t_hotchar != 0)
729 				if (   com->tp == NULL
730 				    || !(com->tp->t_state & TS_ISOPEN)
732 				    &&  (com->tp->t_iflag & IGNPAR))
734 				    &&  (com->tp->t_iflag & IGNBRK)))
737 				    && (com->tp->t_state & TS_CAN_BYPASS_L_RINT)
740 				    &&  (com->tp->t_iflag & INPCK))))
746 			if (com->tp->t_hotchar != 0 && recv_data == com->tp->t_hotchar)
753 				if (com->tp != NULL && com->tp->t_do_timestamp)
754 					microtime(&com->tp->t_timestamp);
782 					if (com->tp != NULL && com->tp->t_do_timestamp)
783 						microtime(&com->tp->t_timestamp);
789 						if (com->tp->t_hotchar != 0
791 						       == com->tp->t_hotchar)
806 					if (com->tp->t_hotchar != 0
807 					    && recv_data == com->tp->t_hotchar)
812 				if (com->tp != NULL && com->tp->t_do_timestamp)
813 					microtime(&com->tp->t_timestamp);
826 					if (com->tp->t_hotchar != 0
827 					    && recv_data == com->tp->t_hotchar)
1118 cybreak(struct tty *tp, int sig)
1122 	com = tp->t_sc;
1143 		struct tty	*tp;
1148 		tp = com->tp;
1149 		if (tp == NULL) {
1168 				    "cy%d: %d events for device with no tp\n",
1193 				ttyld_modem(tp,
1204 				tp->t_state &= ~TS_BUSY;
1205 				ttwwakeup(com->tp);
1220 			ttyld_start(tp);
1230 cyparam(struct tty *tp, struct termios *t)
1246 	com = tp->t_sc;
1253 	odivisor = cyspeed(t->c_ospeed != 0 ? t->c_ospeed : tp->t_ospeed,
1261 		(void)cymodem(tp, 0, SER_DTR);
1263 		(void)cymodem(tp, SER_DTR, 0);
1512 	if (!(tp->t_state & TS_TTSTOP))
1547 	disc_optim(tp, t, com);
1574 	cystart(tp);
1588 	struct tty	*tp;
1615 	tp = com->tp;
1616 	if (tp != NULL) {
1617 		tp->t_ififosize = 2 * ibufsize;
1618 		tp->t_ispeedwat = (speed_t)-1;
1619 		tp->t_ospeedwat = (speed_t)-1;
1653 cystart(struct tty *tp)
1661 	com = tp->t_sc;
1671 	if (tp->t_state & TS_TTSTOP) {
1687 	if (tp->t_state & TS_TBLOCK) {
1708 	if (tp->t_state & (TS_TIMEOUT | TS_TTSTOP)) {
1709 		ttwwakeup(tp);
1713 	if (tp->t_outq.c_cc != 0) {
1722 			    = com->obuf1 + q_to_b(&tp->t_outq, com->obuf1,
1749 		if (tp->t_outq.c_cc != 0 && !com->obufs[1].l_queued) {
1754 			    = com->obuf2 + q_to_b(&tp->t_outq, com->obuf2,
1781 		tp->t_state |= TS_BUSY;
1795 	ttwwakeup(tp);
1800 comstop(struct tty *tp, int rw)
1805 	com = tp->t_sc;
1821 		com->tp->t_state &= ~TS_BUSY;
1837 	cystart(tp);
1841 cymodem(struct tty *tp, int sigon, int sigoff)
1847 	com = tp->t_sc;
1914 		if (com != NULL && com->tp != NULL
1915 		    && com->tp->t_state & TS_ISOPEN) {
1972 disc_optim(struct tty *tp, struct termios *t, struct com_s *com)
1978 	ttyldoptim(tp);
1981 	if (com->tp->t_hotchar != 0) {
1982 		cd_setreg(com, CD1400_SCHR3, com->tp->t_hotchar);
1983 		cd_setreg(com, CD1400_SCHR4, com->tp->t_hotchar);
1996 cyinput(int c, struct tty *tp)
2192 	struct tty	*tp;
2233 	tp = com->tp;
2234 	if (tp != NULL) {
2235 		printf("tty state:\t\t\t0x%08x\n", tp->t_state);
2238 		       tp->t_rawq.c_cc, tp->t_canq.c_cc, tp->t_outq.c_cc);