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29 * @(#)tty_compat.c 8.1 (Berkeley) 6/10/93
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include "opt_compat.h"
38 * mapping routines for old line discipline (yuck)
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/ioctl_compat.h>
45 #include <sys/kernel.h>
46 #include <sys/sysctl.h>
48 static int ttcompatgetflags(struct tty *tp);
49 static void ttcompatsetflags(struct tty *tp, struct termios *t);
50 static void ttcompatsetlflags(struct tty *tp, struct termios *t);
51 static int ttcompatspeedtab(int speed, struct speedtab *table);
53 static int ttydebug = 0;
54 SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
56 static struct speedtab compatspeeds[] = {
78 static int compatspcodes[] = {
79 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
80 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
84 ttcompatspeedtab(int speed, struct speedtab *table)
87 return (0); /* hangup */
88 for ( ; table->sp_speed > 0; table++)
89 if (table->sp_speed <= speed) /* nearest one, rounded down */
90 return (table->sp_code);
91 return (1); /* 50, min and not hangup */
95 ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
100 struct sgttyb *sg = (struct sgttyb *)data;
103 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
105 else if (speed != ttcompatspeedtab(tp->t_ispeed, compatspeeds))
106 term->c_ispeed = compatspcodes[speed];
108 term->c_ispeed = tp->t_ispeed;
109 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
111 else if (speed != ttcompatspeedtab(tp->t_ospeed, compatspeeds))
112 term->c_ospeed = compatspcodes[speed];
114 term->c_ospeed = tp->t_ospeed;
115 term->c_cc[VERASE] = sg->sg_erase;
116 term->c_cc[VKILL] = sg->sg_kill;
117 tp->t_flags = (tp->t_flags&0xffff0000) | (sg->sg_flags&0xffff);
118 ttcompatsetflags(tp, term);
119 *com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
123 struct tchars *tc = (struct tchars *)data;
127 cc[VINTR] = tc->t_intrc;
128 cc[VQUIT] = tc->t_quitc;
129 cc[VSTART] = tc->t_startc;
130 cc[VSTOP] = tc->t_stopc;
131 cc[VEOF] = tc->t_eofc;
132 cc[VEOL] = tc->t_brkc;
133 if (tc->t_brkc == (char)_POSIX_VDISABLE)
134 cc[VEOL2] = _POSIX_VDISABLE;
139 struct ltchars *ltc = (struct ltchars *)data;
143 cc[VSUSP] = ltc->t_suspc;
144 cc[VDSUSP] = ltc->t_dsuspc;
145 cc[VREPRINT] = ltc->t_rprntc;
146 cc[VDISCARD] = ltc->t_flushc;
147 cc[VWERASE] = ltc->t_werasc;
148 cc[VLNEXT] = ltc->t_lnextc;
155 if (*com == TIOCLSET)
156 tp->t_flags = (tp->t_flags&0xffff) | *(int *)data<<16;
159 (ttcompatgetflags(tp)&0xffff0000)|(tp->t_flags&0xffff);
160 if (*com == TIOCLBIS)
161 tp->t_flags |= *(int *)data<<16;
163 tp->t_flags &= ~(*(int *)data<<16);
165 ttcompatsetlflags(tp, term);
174 ttcompat(struct tty *tp, u_long com, caddr_t data, int flag)
187 term = tp->t_termios;
188 if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
190 return ttioctl(tp, com, &term, flag);
193 struct sgttyb *sg = (struct sgttyb *)data;
196 sg->sg_ospeed = ttcompatspeedtab(tp->t_ospeed, compatspeeds);
197 if (tp->t_ispeed == 0)
198 sg->sg_ispeed = sg->sg_ospeed;
200 sg->sg_ispeed = ttcompatspeedtab(tp->t_ispeed, compatspeeds);
201 sg->sg_erase = cc[VERASE];
202 sg->sg_kill = cc[VKILL];
203 sg->sg_flags = tp->t_flags = ttcompatgetflags(tp);
207 struct tchars *tc = (struct tchars *)data;
210 tc->t_intrc = cc[VINTR];
211 tc->t_quitc = cc[VQUIT];
212 tc->t_startc = cc[VSTART];
213 tc->t_stopc = cc[VSTOP];
214 tc->t_eofc = cc[VEOF];
215 tc->t_brkc = cc[VEOL];
219 struct ltchars *ltc = (struct ltchars *)data;
222 ltc->t_suspc = cc[VSUSP];
223 ltc->t_dsuspc = cc[VDSUSP];
224 ltc->t_rprntc = cc[VREPRINT];
225 ltc->t_flushc = cc[VDISCARD];
226 ltc->t_werasc = cc[VWERASE];
227 ltc->t_lnextc = cc[VLNEXT];
232 (ttcompatgetflags(tp) & 0xffff0000UL)
233 | (tp->t_flags & 0xffff);
234 *(int *)data = tp->t_flags>>16;
236 printf("CLGET: returning %x\n", *(int *)data);
240 *(int *)data = tp->t_line ? tp->t_line : 2;
246 return (ttioctl(tp, TIOCSETD,
247 *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag));
252 return (ttioctl(tp, TIOCCONS, data, flag));
261 ttcompatgetflags(struct tty *tp)
263 tcflag_t iflag = tp->t_iflag;
264 tcflag_t lflag = tp->t_lflag;
265 tcflag_t oflag = tp->t_oflag;
266 tcflag_t cflag = tp->t_cflag;
271 if (iflag&ICRNL || oflag&ONLCR)
273 if ((cflag&CSIZE) == CS8) {
278 else if (cflag&PARENB) {
285 flags |= EVENP | ODDP;
288 if ((lflag&ICANON) == 0) {
290 if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
291 || (cflag&(CSIZE|PARENB)) != CS8)
296 if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
300 if ((cflag&HUPCL) == 0)
305 flags |= CRTERA|CRTBS;
307 flags |= CRTKIL|CRTBS;
312 if ((iflag&IXANY) == 0)
314 flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
316 printf("getflags: %x\n", flags);
321 ttcompatsetflags(struct tty *tp, struct termios *t)
323 int flags = tp->t_flags;
324 tcflag_t iflag = t->c_iflag;
325 tcflag_t oflag = t->c_oflag;
326 tcflag_t lflag = t->c_lflag;
327 tcflag_t cflag = t->c_cflag;
331 lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
333 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
334 iflag |= BRKINT|IXON|IMAXBEL;
335 lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
357 cflag &= ~(CSIZE|PARENB);
358 if (flags&(RAW|LITOUT|PASS8)) {
360 if (!(flags&(RAW|PASS8))
361 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
365 if (flags&(RAW|LITOUT))
374 /* XXX don't set INPCK if RAW or PASS8? */
375 if ((flags&(EVENP|ODDP)) == EVENP) {
378 } else if ((flags&(EVENP|ODDP)) == ODDP) {
387 if ((flags&DECCTQ) == 0)
398 ttcompatsetlflags(struct tty *tp, struct termios *t)
400 int flags = tp->t_flags;
401 tcflag_t iflag = t->c_iflag;
402 tcflag_t oflag = t->c_oflag;
403 tcflag_t lflag = t->c_lflag;
404 tcflag_t cflag = t->c_cflag;
406 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
427 if ((flags&DECCTQ) == 0)
439 lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
440 lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
443 * The next if-else statement is copied from above so don't bother
444 * checking it separately. We could avoid fiddlling with the
445 * character size if the mode is already RAW or if neither the
446 * LITOUT bit or the PASS8 bit is being changed, but the delta of
447 * the change is not available here and skipping the RAW case would
448 * make the code different from above.
450 cflag &= ~(CSIZE|PARENB);
451 if (flags&(RAW|LITOUT|PASS8)) {
453 if (!(flags&(RAW|PASS8))
454 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
458 if (flags&(RAW|LITOUT))