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31 * @(#)tty_compat.c 8.1 (Berkeley) 6/10/93
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
37 #include "opt_compat.h"
40 * mapping routines for old line discipline (yuck)
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/ioctl_compat.h>
47 #include <sys/kernel.h>
48 #include <sys/sysctl.h>
51 int sp_speed; /* Speed. */
52 int sp_code; /* Code. */
55 static int ttcompatgetflags(struct tty *tp);
56 static void ttcompatsetflags(struct tty *tp, struct termios *t);
57 static void ttcompatsetlflags(struct tty *tp, struct termios *t);
58 static int ttcompatspeedtab(int speed, struct speedtab *table);
60 static int ttydebug = 0;
61 SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
63 static struct speedtab compatspeeds[] = {
85 static int compatspcodes[] = {
86 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
87 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
91 ttcompatspeedtab(int speed, struct speedtab *table)
94 return (0); /* hangup */
95 for ( ; table->sp_speed > 0; table++)
96 if (table->sp_speed <= speed) /* nearest one, rounded down */
97 return (table->sp_code);
98 return (1); /* 50, min and not hangup */
102 ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
107 struct sgttyb *sg = (struct sgttyb *)data;
110 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
112 else if (speed != ttcompatspeedtab(tp->t_termios.c_ispeed,
114 term->c_ispeed = compatspcodes[speed];
116 term->c_ispeed = tp->t_termios.c_ispeed;
117 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
119 else if (speed != ttcompatspeedtab(tp->t_termios.c_ospeed,
121 term->c_ospeed = compatspcodes[speed];
123 term->c_ospeed = tp->t_termios.c_ospeed;
124 term->c_cc[VERASE] = sg->sg_erase;
125 term->c_cc[VKILL] = sg->sg_kill;
126 tp->t_compatflags = (tp->t_compatflags&0xffff0000) |
127 (sg->sg_flags&0xffff);
128 ttcompatsetflags(tp, term);
129 *com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
133 struct tchars *tc = (struct tchars *)data;
137 cc[VINTR] = tc->t_intrc;
138 cc[VQUIT] = tc->t_quitc;
139 cc[VSTART] = tc->t_startc;
140 cc[VSTOP] = tc->t_stopc;
141 cc[VEOF] = tc->t_eofc;
142 cc[VEOL] = tc->t_brkc;
143 if (tc->t_brkc == (char)_POSIX_VDISABLE)
144 cc[VEOL2] = _POSIX_VDISABLE;
149 struct ltchars *ltc = (struct ltchars *)data;
153 cc[VSUSP] = ltc->t_suspc;
154 cc[VDSUSP] = ltc->t_dsuspc;
155 cc[VREPRINT] = ltc->t_rprntc;
156 cc[VDISCARD] = ltc->t_flushc;
157 cc[VWERASE] = ltc->t_werasc;
158 cc[VLNEXT] = ltc->t_lnextc;
165 if (*com == TIOCLSET)
166 tp->t_compatflags = (tp->t_compatflags&0xffff) |
169 tp->t_compatflags = (ttcompatgetflags(tp)&0xffff0000) |
170 (tp->t_compatflags&0xffff);
171 if (*com == TIOCLBIS)
172 tp->t_compatflags |= *(int *)data<<16;
174 tp->t_compatflags &= ~(*(int *)data<<16);
176 ttcompatsetlflags(tp, term);
185 tty_ioctl_compat(struct tty *tp, u_long com, caddr_t data, int fflag,
199 term = tp->t_termios;
200 if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
202 return tty_ioctl(tp, com, &term, fflag, td);
205 struct sgttyb *sg = (struct sgttyb *)data;
206 cc_t *cc = tp->t_termios.c_cc;
208 sg->sg_ospeed = ttcompatspeedtab(tp->t_termios.c_ospeed,
210 if (tp->t_termios.c_ispeed == 0)
211 sg->sg_ispeed = sg->sg_ospeed;
213 sg->sg_ispeed = ttcompatspeedtab(tp->t_termios.c_ispeed,
215 sg->sg_erase = cc[VERASE];
216 sg->sg_kill = cc[VKILL];
217 sg->sg_flags = tp->t_compatflags = ttcompatgetflags(tp);
221 struct tchars *tc = (struct tchars *)data;
222 cc_t *cc = tp->t_termios.c_cc;
224 tc->t_intrc = cc[VINTR];
225 tc->t_quitc = cc[VQUIT];
226 tc->t_startc = cc[VSTART];
227 tc->t_stopc = cc[VSTOP];
228 tc->t_eofc = cc[VEOF];
229 tc->t_brkc = cc[VEOL];
233 struct ltchars *ltc = (struct ltchars *)data;
234 cc_t *cc = tp->t_termios.c_cc;
236 ltc->t_suspc = cc[VSUSP];
237 ltc->t_dsuspc = cc[VDSUSP];
238 ltc->t_rprntc = cc[VREPRINT];
239 ltc->t_flushc = cc[VDISCARD];
240 ltc->t_werasc = cc[VWERASE];
241 ltc->t_lnextc = cc[VLNEXT];
246 (ttcompatgetflags(tp) & 0xffff0000UL)
247 | (tp->t_compatflags & 0xffff);
248 *(int *)data = tp->t_compatflags>>16;
250 printf("CLGET: returning %x\n", *(int *)data);
260 return (tty_ioctl(tp, TIOCSETD,
261 *(int *)data == 2 ? (caddr_t)&ldisczero : data,
267 return (tty_ioctl(tp, TIOCCONS, data, fflag, td));
276 ttcompatgetflags(struct tty *tp)
278 tcflag_t iflag = tp->t_termios.c_iflag;
279 tcflag_t lflag = tp->t_termios.c_lflag;
280 tcflag_t oflag = tp->t_termios.c_oflag;
281 tcflag_t cflag = tp->t_termios.c_cflag;
286 if (iflag&ICRNL || oflag&ONLCR)
288 if ((cflag&CSIZE) == CS8) {
293 else if (cflag&PARENB) {
300 flags |= EVENP | ODDP;
303 if ((lflag&ICANON) == 0) {
305 if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
306 || (cflag&(CSIZE|PARENB)) != CS8)
311 if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
315 if ((cflag&HUPCL) == 0)
320 flags |= CRTERA|CRTBS;
322 flags |= CRTKIL|CRTBS;
327 if ((iflag&IXANY) == 0)
329 flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
331 printf("getflags: %x\n", flags);
336 ttcompatsetflags(struct tty *tp, struct termios *t)
338 int flags = tp->t_compatflags;
339 tcflag_t iflag = t->c_iflag;
340 tcflag_t oflag = t->c_oflag;
341 tcflag_t lflag = t->c_lflag;
342 tcflag_t cflag = t->c_cflag;
346 lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
348 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
349 iflag |= BRKINT|IXON|IMAXBEL;
350 lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
372 cflag &= ~(CSIZE|PARENB);
373 if (flags&(RAW|LITOUT|PASS8)) {
375 if (!(flags&(RAW|PASS8))
376 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
380 if (flags&(RAW|LITOUT))
389 /* XXX don't set INPCK if RAW or PASS8? */
390 if ((flags&(EVENP|ODDP)) == EVENP) {
393 } else if ((flags&(EVENP|ODDP)) == ODDP) {
402 if ((flags&DECCTQ) == 0)
413 ttcompatsetlflags(struct tty *tp, struct termios *t)
415 int flags = tp->t_compatflags;
416 tcflag_t iflag = t->c_iflag;
417 tcflag_t oflag = t->c_oflag;
418 tcflag_t lflag = t->c_lflag;
419 tcflag_t cflag = t->c_cflag;
421 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
442 if ((flags&DECCTQ) == 0)
454 lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
455 lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
458 * The next if-else statement is copied from above so don't bother
459 * checking it separately. We could avoid fiddlling with the
460 * character size if the mode is already RAW or if neither the
461 * LITOUT bit or the PASS8 bit is being changed, but the delta of
462 * the change is not available here and skipping the RAW case would
463 * make the code different from above.
465 cflag &= ~(CSIZE|PARENB);
466 if (flags&(RAW|LITOUT|PASS8)) {
468 if (!(flags&(RAW|PASS8))
469 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
473 if (flags&(RAW|LITOUT))