2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1982, 1986, 1991, 1993
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32 #include <sys/cdefs.h>
34 * mapping routines for old line discipline (yuck)
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/ioctl_compat.h>
41 #include <sys/kernel.h>
42 #include <sys/sysctl.h>
45 int sp_speed; /* Speed. */
46 int sp_code; /* Code. */
49 static int ttcompatgetflags(struct tty *tp);
50 static void ttcompatsetflags(struct tty *tp, struct termios *t);
51 static void ttcompatsetlflags(struct tty *tp, struct termios *t);
52 static int ttcompatspeedtab(int speed, struct speedtab *table);
54 static int ttydebug = 0;
55 SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
57 static struct speedtab compatspeeds[] = {
79 static int compatspcodes[] = {
80 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
81 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
85 ttcompatspeedtab(int speed, struct speedtab *table)
88 return (0); /* hangup */
89 for ( ; table->sp_speed > 0; table++)
90 if (table->sp_speed <= speed) /* nearest one, rounded down */
91 return (table->sp_code);
92 return (1); /* 50, min and not hangup */
96 ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
101 struct sgttyb *sg = (struct sgttyb *)data;
104 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
106 else if (speed != ttcompatspeedtab(tp->t_termios.c_ispeed,
108 term->c_ispeed = compatspcodes[speed];
110 term->c_ispeed = tp->t_termios.c_ispeed;
111 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
113 else if (speed != ttcompatspeedtab(tp->t_termios.c_ospeed,
115 term->c_ospeed = compatspcodes[speed];
117 term->c_ospeed = tp->t_termios.c_ospeed;
118 term->c_cc[VERASE] = sg->sg_erase;
119 term->c_cc[VKILL] = sg->sg_kill;
120 tp->t_compatflags = (tp->t_compatflags&0xffff0000) |
121 (sg->sg_flags&0xffff);
122 ttcompatsetflags(tp, term);
123 *com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
127 struct tchars *tc = (struct tchars *)data;
131 cc[VINTR] = tc->t_intrc;
132 cc[VQUIT] = tc->t_quitc;
133 cc[VSTART] = tc->t_startc;
134 cc[VSTOP] = tc->t_stopc;
135 cc[VEOF] = tc->t_eofc;
136 cc[VEOL] = tc->t_brkc;
137 if (tc->t_brkc == (char)_POSIX_VDISABLE)
138 cc[VEOL2] = _POSIX_VDISABLE;
143 struct ltchars *ltc = (struct ltchars *)data;
147 cc[VSUSP] = ltc->t_suspc;
148 cc[VDSUSP] = ltc->t_dsuspc;
149 cc[VREPRINT] = ltc->t_rprntc;
150 cc[VDISCARD] = ltc->t_flushc;
151 cc[VWERASE] = ltc->t_werasc;
152 cc[VLNEXT] = ltc->t_lnextc;
159 if (*com == TIOCLSET)
160 tp->t_compatflags = (tp->t_compatflags&0xffff) |
163 tp->t_compatflags = (ttcompatgetflags(tp)&0xffff0000) |
164 (tp->t_compatflags&0xffff);
165 if (*com == TIOCLBIS)
166 tp->t_compatflags |= *(int *)data<<16;
168 tp->t_compatflags &= ~(*(int *)data<<16);
170 ttcompatsetlflags(tp, term);
179 tty_ioctl_compat(struct tty *tp, u_long com, caddr_t data, int fflag,
193 term = tp->t_termios;
194 if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
196 return tty_ioctl(tp, com, &term, fflag, td);
199 struct sgttyb *sg = (struct sgttyb *)data;
200 cc_t *cc = tp->t_termios.c_cc;
202 sg->sg_ospeed = ttcompatspeedtab(tp->t_termios.c_ospeed,
204 if (tp->t_termios.c_ispeed == 0)
205 sg->sg_ispeed = sg->sg_ospeed;
207 sg->sg_ispeed = ttcompatspeedtab(tp->t_termios.c_ispeed,
209 sg->sg_erase = cc[VERASE];
210 sg->sg_kill = cc[VKILL];
211 sg->sg_flags = tp->t_compatflags = ttcompatgetflags(tp);
215 struct tchars *tc = (struct tchars *)data;
216 cc_t *cc = tp->t_termios.c_cc;
218 tc->t_intrc = cc[VINTR];
219 tc->t_quitc = cc[VQUIT];
220 tc->t_startc = cc[VSTART];
221 tc->t_stopc = cc[VSTOP];
222 tc->t_eofc = cc[VEOF];
223 tc->t_brkc = cc[VEOL];
227 struct ltchars *ltc = (struct ltchars *)data;
228 cc_t *cc = tp->t_termios.c_cc;
230 ltc->t_suspc = cc[VSUSP];
231 ltc->t_dsuspc = cc[VDSUSP];
232 ltc->t_rprntc = cc[VREPRINT];
233 ltc->t_flushc = cc[VDISCARD];
234 ltc->t_werasc = cc[VWERASE];
235 ltc->t_lnextc = cc[VLNEXT];
240 (ttcompatgetflags(tp) & 0xffff0000UL)
241 | (tp->t_compatflags & 0xffff);
242 *(int *)data = tp->t_compatflags>>16;
244 printf("CLGET: returning %x\n", *(int *)data);
254 return (tty_ioctl(tp, TIOCSETD,
255 *(int *)data == 2 ? (caddr_t)&ldisczero : data,
262 return (tty_ioctl(tp, TIOCCONS, (caddr_t)&one, fflag, td));
272 ttcompatgetflags(struct tty *tp)
274 tcflag_t iflag = tp->t_termios.c_iflag;
275 tcflag_t lflag = tp->t_termios.c_lflag;
276 tcflag_t oflag = tp->t_termios.c_oflag;
277 tcflag_t cflag = tp->t_termios.c_cflag;
282 if (iflag&ICRNL || oflag&ONLCR)
284 if ((cflag&CSIZE) == CS8) {
289 else if (cflag&PARENB) {
296 flags |= EVENP | ODDP;
299 if ((lflag&ICANON) == 0) {
301 if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
302 || (cflag&(CSIZE|PARENB)) != CS8)
307 if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
311 if ((cflag&HUPCL) == 0)
316 flags |= CRTERA|CRTBS;
318 flags |= CRTKIL|CRTBS;
323 if ((iflag&IXANY) == 0)
325 flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
327 printf("getflags: %x\n", flags);
332 ttcompatsetflags(struct tty *tp, struct termios *t)
334 int flags = tp->t_compatflags;
335 tcflag_t iflag = t->c_iflag;
336 tcflag_t oflag = t->c_oflag;
337 tcflag_t lflag = t->c_lflag;
338 tcflag_t cflag = t->c_cflag;
342 lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
344 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
345 iflag |= BRKINT|IXON|IMAXBEL;
346 lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
368 cflag &= ~(CSIZE|PARENB);
369 if (flags&(RAW|LITOUT|PASS8)) {
371 if (!(flags&(RAW|PASS8))
372 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
376 if (flags&(RAW|LITOUT))
385 /* XXX don't set INPCK if RAW or PASS8? */
386 if ((flags&(EVENP|ODDP)) == EVENP) {
389 } else if ((flags&(EVENP|ODDP)) == ODDP) {
398 if ((flags&DECCTQ) == 0)
409 ttcompatsetlflags(struct tty *tp, struct termios *t)
411 int flags = tp->t_compatflags;
412 tcflag_t iflag = t->c_iflag;
413 tcflag_t oflag = t->c_oflag;
414 tcflag_t lflag = t->c_lflag;
415 tcflag_t cflag = t->c_cflag;
417 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
438 if ((flags&DECCTQ) == 0)
450 lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
451 lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
454 * The next if-else statement is copied from above so don't bother
455 * checking it separately. We could avoid fiddlling with the
456 * character size if the mode is already RAW or if neither the
457 * LITOUT bit or the PASS8 bit is being changed, but the delta of
458 * the change is not available here and skipping the RAW case would
459 * make the code different from above.
461 cflag &= ~(CSIZE|PARENB);
462 if (flags&(RAW|LITOUT|PASS8)) {
464 if (!(flags&(RAW|PASS8))
465 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
469 if (flags&(RAW|LITOUT))