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33 * @(#)tty_compat.c 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/kern/tty_compat.c,v 1.29 1999/08/28 00:46:20 peter Exp $
35 * $DragonFly: src/sys/kern/tty_compat.c,v 1.6 2006/12/23 23:47:54 swildner Exp $
38 #include "opt_compat.h"
41 * mapping routines for old line discipline (yuck)
43 #if defined(COMPAT_43) || defined(COMPAT_SUNOS)
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/ioctl_compat.h>
49 #include <sys/kernel.h>
50 #include <sys/sysctl.h>
52 static int ttcompatgetflags (struct tty *tp);
53 static void ttcompatsetflags (struct tty *tp, struct termios *t);
54 static void ttcompatsetlflags (struct tty *tp, struct termios *t);
55 static int ttcompatspeedtab (int speed, struct speedtab *table);
57 static int ttydebug = 0;
58 SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
60 static struct speedtab compatspeeds[] = {
82 static int compatspcodes[] = {
83 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
84 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
88 ttcompatspeedtab(int speed, struct speedtab *table)
91 return (0); /* hangup */
92 for ( ; table->sp_speed > 0; table++)
93 if (table->sp_speed <= speed) /* nearest one, rounded down */
94 return (table->sp_code);
95 return (1); /* 50, min and not hangup */
99 ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
104 struct sgttyb *sg = (struct sgttyb *)data;
107 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
109 else if (speed != ttcompatspeedtab(tp->t_ispeed, compatspeeds))
110 term->c_ispeed = compatspcodes[speed];
112 term->c_ispeed = tp->t_ispeed;
113 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
115 else if (speed != ttcompatspeedtab(tp->t_ospeed, compatspeeds))
116 term->c_ospeed = compatspcodes[speed];
118 term->c_ospeed = tp->t_ospeed;
119 term->c_cc[VERASE] = sg->sg_erase;
120 term->c_cc[VKILL] = sg->sg_kill;
121 tp->t_flags = (tp->t_flags&0xffff0000) | (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 == -1)
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_flags = (tp->t_flags&0xffff) | *(int *)data<<16;
163 (ttcompatgetflags(tp)&0xffff0000)|(tp->t_flags&0xffff);
164 if (*com == TIOCLBIS)
165 tp->t_flags |= *(int *)data<<16;
167 tp->t_flags &= ~(*(int *)data<<16);
169 ttcompatsetlflags(tp, term);
178 ttcompat(struct tty *tp, u_long com, caddr_t data, int flag)
191 term = tp->t_termios;
192 if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
194 return ttioctl(tp, com, &term, flag);
197 struct sgttyb *sg = (struct sgttyb *)data;
200 sg->sg_ospeed = ttcompatspeedtab(tp->t_ospeed, compatspeeds);
201 if (tp->t_ispeed == 0)
202 sg->sg_ispeed = sg->sg_ospeed;
204 sg->sg_ispeed = ttcompatspeedtab(tp->t_ispeed, compatspeeds);
205 sg->sg_erase = cc[VERASE];
206 sg->sg_kill = cc[VKILL];
207 sg->sg_flags = tp->t_flags = ttcompatgetflags(tp);
211 struct tchars *tc = (struct tchars *)data;
214 tc->t_intrc = cc[VINTR];
215 tc->t_quitc = cc[VQUIT];
216 tc->t_startc = cc[VSTART];
217 tc->t_stopc = cc[VSTOP];
218 tc->t_eofc = cc[VEOF];
219 tc->t_brkc = cc[VEOL];
223 struct ltchars *ltc = (struct ltchars *)data;
226 ltc->t_suspc = cc[VSUSP];
227 ltc->t_dsuspc = cc[VDSUSP];
228 ltc->t_rprntc = cc[VREPRINT];
229 ltc->t_flushc = cc[VDISCARD];
230 ltc->t_werasc = cc[VWERASE];
231 ltc->t_lnextc = cc[VLNEXT];
236 (ttcompatgetflags(tp) & 0xffff0000UL)
237 | (tp->t_flags & 0xffff);
238 *(int *)data = tp->t_flags>>16;
240 kprintf("CLGET: returning %x\n", *(int *)data);
244 *(int *)data = tp->t_line ? tp->t_line : 2;
250 return (ttioctl(tp, TIOCSETD,
251 *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag));
256 return (ttioctl(tp, TIOCCONS, data, flag));
265 ttcompatgetflags(struct tty *tp)
267 tcflag_t iflag = tp->t_iflag;
268 tcflag_t lflag = tp->t_lflag;
269 tcflag_t oflag = tp->t_oflag;
270 tcflag_t cflag = tp->t_cflag;
275 if (iflag&ICRNL || oflag&ONLCR)
277 if ((cflag&CSIZE) == CS8) {
282 else if (cflag&PARENB) {
289 flags |= EVENP | ODDP;
292 if ((lflag&ICANON) == 0) {
294 if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
295 || (cflag&(CSIZE|PARENB)) != CS8)
300 if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
304 if ((cflag&HUPCL) == 0)
309 flags |= CRTERA|CRTBS;
311 flags |= CRTKIL|CRTBS;
316 if ((iflag&IXANY) == 0)
318 flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
320 kprintf("getflags: %x\n", flags);
325 ttcompatsetflags(struct tty *tp, struct termios *t)
327 int flags = tp->t_flags;
328 tcflag_t iflag = t->c_iflag;
329 tcflag_t oflag = t->c_oflag;
330 tcflag_t lflag = t->c_lflag;
331 tcflag_t cflag = t->c_cflag;
335 lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
337 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
338 iflag |= BRKINT|IXON|IMAXBEL;
339 lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
361 cflag &= ~(CSIZE|PARENB);
362 if (flags&(RAW|LITOUT|PASS8)) {
364 if (!(flags&(RAW|PASS8))
365 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
369 if (flags&(RAW|LITOUT))
378 /* XXX don't set INPCK if RAW or PASS8? */
379 if ((flags&(EVENP|ODDP)) == EVENP) {
382 } else if ((flags&(EVENP|ODDP)) == ODDP) {
391 if ((flags&DECCTQ) == 0)
402 ttcompatsetlflags(struct tty *tp, struct termios *t)
404 int flags = tp->t_flags;
405 tcflag_t iflag = t->c_iflag;
406 tcflag_t oflag = t->c_oflag;
407 tcflag_t lflag = t->c_lflag;
408 tcflag_t cflag = t->c_cflag;
410 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
431 if ((flags&DECCTQ) == 0)
443 lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
444 lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
447 * The next if-else statement is copied from above so don't bother
448 * checking it separately. We could avoid fiddlling with the
449 * character size if the mode is already RAW or if neither the
450 * LITOUT bit or the PASS8 bit is being changed, but the delta of
451 * the change is not available here and skipping the RAW case would
452 * make the code different from above.
454 cflag &= ~(CSIZE|PARENB);
455 if (flags&(RAW|LITOUT|PASS8)) {
457 if (!(flags&(RAW|PASS8))
458 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
462 if (flags&(RAW|LITOUT))
476 #endif /* COMPAT_43 || COMPAT_SUNOS */