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31 * @(#)tty_compat.c 8.1 (Berkeley) 6/10/93
34 #include <sys/cdefs.h>
36 * mapping routines for old line discipline (yuck)
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/ioctl_compat.h>
43 #include <sys/kernel.h>
44 #include <sys/sysctl.h>
47 int sp_speed; /* Speed. */
48 int sp_code; /* Code. */
51 static int ttcompatgetflags(struct tty *tp);
52 static void ttcompatsetflags(struct tty *tp, struct termios *t);
53 static void ttcompatsetlflags(struct tty *tp, struct termios *t);
54 static int ttcompatspeedtab(int speed, struct speedtab *table);
56 static int ttydebug = 0;
57 SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
59 static struct speedtab compatspeeds[] = {
81 static int compatspcodes[] = {
82 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
83 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
87 ttcompatspeedtab(int speed, struct speedtab *table)
90 return (0); /* hangup */
91 for ( ; table->sp_speed > 0; table++)
92 if (table->sp_speed <= speed) /* nearest one, rounded down */
93 return (table->sp_code);
94 return (1); /* 50, min and not hangup */
98 ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
103 struct sgttyb *sg = (struct sgttyb *)data;
106 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
108 else if (speed != ttcompatspeedtab(tp->t_termios.c_ispeed,
110 term->c_ispeed = compatspcodes[speed];
112 term->c_ispeed = tp->t_termios.c_ispeed;
113 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
115 else if (speed != ttcompatspeedtab(tp->t_termios.c_ospeed,
117 term->c_ospeed = compatspcodes[speed];
119 term->c_ospeed = tp->t_termios.c_ospeed;
120 term->c_cc[VERASE] = sg->sg_erase;
121 term->c_cc[VKILL] = sg->sg_kill;
122 tp->t_compatflags = (tp->t_compatflags&0xffff0000) |
123 (sg->sg_flags&0xffff);
124 ttcompatsetflags(tp, term);
125 *com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
129 struct tchars *tc = (struct tchars *)data;
133 cc[VINTR] = tc->t_intrc;
134 cc[VQUIT] = tc->t_quitc;
135 cc[VSTART] = tc->t_startc;
136 cc[VSTOP] = tc->t_stopc;
137 cc[VEOF] = tc->t_eofc;
138 cc[VEOL] = tc->t_brkc;
139 if (tc->t_brkc == (char)_POSIX_VDISABLE)
140 cc[VEOL2] = _POSIX_VDISABLE;
145 struct ltchars *ltc = (struct ltchars *)data;
149 cc[VSUSP] = ltc->t_suspc;
150 cc[VDSUSP] = ltc->t_dsuspc;
151 cc[VREPRINT] = ltc->t_rprntc;
152 cc[VDISCARD] = ltc->t_flushc;
153 cc[VWERASE] = ltc->t_werasc;
154 cc[VLNEXT] = ltc->t_lnextc;
161 if (*com == TIOCLSET)
162 tp->t_compatflags = (tp->t_compatflags&0xffff) |
165 tp->t_compatflags = (ttcompatgetflags(tp)&0xffff0000) |
166 (tp->t_compatflags&0xffff);
167 if (*com == TIOCLBIS)
168 tp->t_compatflags |= *(int *)data<<16;
170 tp->t_compatflags &= ~(*(int *)data<<16);
172 ttcompatsetlflags(tp, term);
181 tty_ioctl_compat(struct tty *tp, u_long com, caddr_t data, int fflag,
195 term = tp->t_termios;
196 if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
198 return tty_ioctl(tp, com, &term, fflag, td);
201 struct sgttyb *sg = (struct sgttyb *)data;
202 cc_t *cc = tp->t_termios.c_cc;
204 sg->sg_ospeed = ttcompatspeedtab(tp->t_termios.c_ospeed,
206 if (tp->t_termios.c_ispeed == 0)
207 sg->sg_ispeed = sg->sg_ospeed;
209 sg->sg_ispeed = ttcompatspeedtab(tp->t_termios.c_ispeed,
211 sg->sg_erase = cc[VERASE];
212 sg->sg_kill = cc[VKILL];
213 sg->sg_flags = tp->t_compatflags = ttcompatgetflags(tp);
217 struct tchars *tc = (struct tchars *)data;
218 cc_t *cc = tp->t_termios.c_cc;
220 tc->t_intrc = cc[VINTR];
221 tc->t_quitc = cc[VQUIT];
222 tc->t_startc = cc[VSTART];
223 tc->t_stopc = cc[VSTOP];
224 tc->t_eofc = cc[VEOF];
225 tc->t_brkc = cc[VEOL];
229 struct ltchars *ltc = (struct ltchars *)data;
230 cc_t *cc = tp->t_termios.c_cc;
232 ltc->t_suspc = cc[VSUSP];
233 ltc->t_dsuspc = cc[VDSUSP];
234 ltc->t_rprntc = cc[VREPRINT];
235 ltc->t_flushc = cc[VDISCARD];
236 ltc->t_werasc = cc[VWERASE];
237 ltc->t_lnextc = cc[VLNEXT];
242 (ttcompatgetflags(tp) & 0xffff0000UL)
243 | (tp->t_compatflags & 0xffff);
244 *(int *)data = tp->t_compatflags>>16;
246 printf("CLGET: returning %x\n", *(int *)data);
256 return (tty_ioctl(tp, TIOCSETD,
257 *(int *)data == 2 ? (caddr_t)&ldisczero : data,
264 return (tty_ioctl(tp, TIOCCONS, (caddr_t)&one, fflag, td));
274 ttcompatgetflags(struct tty *tp)
276 tcflag_t iflag = tp->t_termios.c_iflag;
277 tcflag_t lflag = tp->t_termios.c_lflag;
278 tcflag_t oflag = tp->t_termios.c_oflag;
279 tcflag_t cflag = tp->t_termios.c_cflag;
284 if (iflag&ICRNL || oflag&ONLCR)
286 if ((cflag&CSIZE) == CS8) {
291 else if (cflag&PARENB) {
298 flags |= EVENP | ODDP;
301 if ((lflag&ICANON) == 0) {
303 if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
304 || (cflag&(CSIZE|PARENB)) != CS8)
309 if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
313 if ((cflag&HUPCL) == 0)
318 flags |= CRTERA|CRTBS;
320 flags |= CRTKIL|CRTBS;
325 if ((iflag&IXANY) == 0)
327 flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
329 printf("getflags: %x\n", flags);
334 ttcompatsetflags(struct tty *tp, struct termios *t)
336 int flags = tp->t_compatflags;
337 tcflag_t iflag = t->c_iflag;
338 tcflag_t oflag = t->c_oflag;
339 tcflag_t lflag = t->c_lflag;
340 tcflag_t cflag = t->c_cflag;
344 lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
346 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
347 iflag |= BRKINT|IXON|IMAXBEL;
348 lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
370 cflag &= ~(CSIZE|PARENB);
371 if (flags&(RAW|LITOUT|PASS8)) {
373 if (!(flags&(RAW|PASS8))
374 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
378 if (flags&(RAW|LITOUT))
387 /* XXX don't set INPCK if RAW or PASS8? */
388 if ((flags&(EVENP|ODDP)) == EVENP) {
391 } else if ((flags&(EVENP|ODDP)) == ODDP) {
400 if ((flags&DECCTQ) == 0)
411 ttcompatsetlflags(struct tty *tp, struct termios *t)
413 int flags = tp->t_compatflags;
414 tcflag_t iflag = t->c_iflag;
415 tcflag_t oflag = t->c_oflag;
416 tcflag_t lflag = t->c_lflag;
417 tcflag_t cflag = t->c_cflag;
419 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
440 if ((flags&DECCTQ) == 0)
452 lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
453 lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
456 * The next if-else statement is copied from above so don't bother
457 * checking it separately. We could avoid fiddlling with the
458 * character size if the mode is already RAW or if neither the
459 * LITOUT bit or the PASS8 bit is being changed, but the delta of
460 * the change is not available here and skipping the RAW case would
461 * make the code different from above.
463 cflag &= ~(CSIZE|PARENB);
464 if (flags&(RAW|LITOUT|PASS8)) {
466 if (!(flags&(RAW|PASS8))
467 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
471 if (flags&(RAW|LITOUT))