Rename printf -> kprintf in sys/ and add some defines where necessary
[dragonfly.git] / sys / kern / tty_compat.c
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1/*-
2 * Copyright (c) 1982, 1986, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
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 $
402ed7e1 35 * $DragonFly: src/sys/kern/tty_compat.c,v 1.4 2003/08/26 21:09:02 rob Exp $
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36 */
37
38#include "opt_compat.h"
39
40/*
41 * mapping routines for old line discipline (yuck)
42 */
43#if defined(COMPAT_43) || defined(COMPAT_SUNOS)
44
45#include <sys/param.h>
46#include <sys/systm.h>
47#include <sys/ioctl_compat.h>
48#include <sys/tty.h>
49#include <sys/kernel.h>
50#include <sys/sysctl.h>
51
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52static int ttcompatgetflags (struct tty *tp);
53static void ttcompatsetflags (struct tty *tp, struct termios *t);
54static void ttcompatsetlflags (struct tty *tp, struct termios *t);
55static int ttcompatspeedtab (int speed, struct speedtab *table);
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56
57static int ttydebug = 0;
58SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
59
60static struct speedtab compatspeeds[] = {
61#define MAX_SPEED 17
62 { 115200, 17 },
63 { 57600, 16 },
64 { 38400, 15 },
65 { 19200, 14 },
66 { 9600, 13 },
67 { 4800, 12 },
68 { 2400, 11 },
69 { 1800, 10 },
70 { 1200, 9 },
71 { 600, 8 },
72 { 300, 7 },
73 { 200, 6 },
74 { 150, 5 },
75 { 134, 4 },
76 { 110, 3 },
77 { 75, 2 },
78 { 50, 1 },
79 { 0, 0 },
80 { -1, -1 },
81};
82static int compatspcodes[] = {
83 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
84 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
85};
86
87static int
88ttcompatspeedtab(speed, table)
89 int speed;
1fd87d54 90 struct speedtab *table;
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91{
92 if (speed == 0)
93 return (0); /* hangup */
94 for ( ; table->sp_speed > 0; table++)
95 if (table->sp_speed <= speed) /* nearest one, rounded down */
96 return (table->sp_code);
97 return (1); /* 50, min and not hangup */
98}
99
100int
101ttsetcompat(tp, com, data, term)
1fd87d54 102 struct tty *tp;
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103 u_long *com;
104 caddr_t data;
105 struct termios *term;
106{
107 switch (*com) {
108 case TIOCSETP:
109 case TIOCSETN: {
1fd87d54 110 struct sgttyb *sg = (struct sgttyb *)data;
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111 int speed;
112
113 if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
114 return(EINVAL);
115 else if (speed != ttcompatspeedtab(tp->t_ispeed, compatspeeds))
116 term->c_ispeed = compatspcodes[speed];
117 else
118 term->c_ispeed = tp->t_ispeed;
119 if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
120 return(EINVAL);
121 else if (speed != ttcompatspeedtab(tp->t_ospeed, compatspeeds))
122 term->c_ospeed = compatspcodes[speed];
123 else
124 term->c_ospeed = tp->t_ospeed;
125 term->c_cc[VERASE] = sg->sg_erase;
126 term->c_cc[VKILL] = sg->sg_kill;
127 tp->t_flags = (tp->t_flags&0xffff0000) | (sg->sg_flags&0xffff);
128 ttcompatsetflags(tp, term);
129 *com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
130 break;
131 }
132 case TIOCSETC: {
133 struct tchars *tc = (struct tchars *)data;
1fd87d54 134 cc_t *cc;
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135
136 cc = term->c_cc;
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 == -1)
144 cc[VEOL2] = _POSIX_VDISABLE;
145 *com = TIOCSETA;
146 break;
147 }
148 case TIOCSLTC: {
149 struct ltchars *ltc = (struct ltchars *)data;
1fd87d54 150 cc_t *cc;
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151
152 cc = term->c_cc;
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;
159 *com = TIOCSETA;
160 break;
161 }
162 case TIOCLBIS:
163 case TIOCLBIC:
164 case TIOCLSET:
165 if (*com == TIOCLSET)
166 tp->t_flags = (tp->t_flags&0xffff) | *(int *)data<<16;
167 else {
168 tp->t_flags =
169 (ttcompatgetflags(tp)&0xffff0000)|(tp->t_flags&0xffff);
170 if (*com == TIOCLBIS)
171 tp->t_flags |= *(int *)data<<16;
172 else
173 tp->t_flags &= ~(*(int *)data<<16);
174 }
175 ttcompatsetlflags(tp, term);
176 *com = TIOCSETA;
177 break;
178 }
179 return 0;
180}
181
182/*ARGSUSED*/
183int
184ttcompat(tp, com, data, flag)
1fd87d54 185 struct tty *tp;
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186 u_long com;
187 caddr_t data;
188 int flag;
189{
190 switch (com) {
191 case TIOCSETP:
192 case TIOCSETN:
193 case TIOCSETC:
194 case TIOCSLTC:
195 case TIOCLBIS:
196 case TIOCLBIC:
197 case TIOCLSET: {
198 struct termios term;
199 int error;
200
201 term = tp->t_termios;
202 if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
203 return error;
204 return ttioctl(tp, com, &term, flag);
205 }
206 case TIOCGETP: {
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207 struct sgttyb *sg = (struct sgttyb *)data;
208 cc_t *cc = tp->t_cc;
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209
210 sg->sg_ospeed = ttcompatspeedtab(tp->t_ospeed, compatspeeds);
211 if (tp->t_ispeed == 0)
212 sg->sg_ispeed = sg->sg_ospeed;
213 else
214 sg->sg_ispeed = ttcompatspeedtab(tp->t_ispeed, compatspeeds);
215 sg->sg_erase = cc[VERASE];
216 sg->sg_kill = cc[VKILL];
217 sg->sg_flags = tp->t_flags = ttcompatgetflags(tp);
218 break;
219 }
220 case TIOCGETC: {
221 struct tchars *tc = (struct tchars *)data;
1fd87d54 222 cc_t *cc = tp->t_cc;
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223
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];
230 break;
231 }
232 case TIOCGLTC: {
233 struct ltchars *ltc = (struct ltchars *)data;
1fd87d54 234 cc_t *cc = tp->t_cc;
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235
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];
242 break;
243 }
244 case TIOCLGET:
245 tp->t_flags =
246 (ttcompatgetflags(tp) & 0xffff0000UL)
247 | (tp->t_flags & 0xffff);
248 *(int *)data = tp->t_flags>>16;
249 if (ttydebug)
250 printf("CLGET: returning %x\n", *(int *)data);
251 break;
252
253 case OTIOCGETD:
254 *(int *)data = tp->t_line ? tp->t_line : 2;
255 break;
256
257 case OTIOCSETD: {
258 int ldisczero = 0;
259
260 return (ttioctl(tp, TIOCSETD,
261 *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag));
262 }
263
264 case OTIOCCONS:
265 *(int *)data = 1;
266 return (ttioctl(tp, TIOCCONS, data, flag));
267
268 default:
269 return (ENOIOCTL);
270 }
271 return (0);
272}
273
274static int
275ttcompatgetflags(tp)
1fd87d54 276 struct tty *tp;
984263bc 277{
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278 tcflag_t iflag = tp->t_iflag;
279 tcflag_t lflag = tp->t_lflag;
280 tcflag_t oflag = tp->t_oflag;
281 tcflag_t cflag = tp->t_cflag;
282 int flags = 0;
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283
284 if (iflag&IXOFF)
285 flags |= TANDEM;
286 if (iflag&ICRNL || oflag&ONLCR)
287 flags |= CRMOD;
288 if ((cflag&CSIZE) == CS8) {
289 flags |= PASS8;
290 if (iflag&ISTRIP)
291 flags |= ANYP;
292 }
293 else if (cflag&PARENB) {
294 if (iflag&INPCK) {
295 if (cflag&PARODD)
296 flags |= ODDP;
297 else
298 flags |= EVENP;
299 } else
300 flags |= EVENP | ODDP;
301 }
302
303 if ((lflag&ICANON) == 0) {
304 /* fudge */
305 if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
306 || (cflag&(CSIZE|PARENB)) != CS8)
307 flags |= CBREAK;
308 else
309 flags |= RAW;
310 }
311 if (!(flags&RAW) && !(oflag&OPOST) && (cflag&(CSIZE|PARENB)) == CS8)
312 flags |= LITOUT;
313 if (cflag&MDMBUF)
314 flags |= MDMBUF;
315 if ((cflag&HUPCL) == 0)
316 flags |= NOHANG;
317 if (oflag&OXTABS)
318 flags |= XTABS;
319 if (lflag&ECHOE)
320 flags |= CRTERA|CRTBS;
321 if (lflag&ECHOKE)
322 flags |= CRTKIL|CRTBS;
323 if (lflag&ECHOPRT)
324 flags |= PRTERA;
325 if (lflag&ECHOCTL)
326 flags |= CTLECH;
327 if ((iflag&IXANY) == 0)
328 flags |= DECCTQ;
329 flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
330 if (ttydebug)
331 printf("getflags: %x\n", flags);
332 return (flags);
333}
334
335static void
336ttcompatsetflags(tp, t)
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337 struct tty *tp;
338 struct termios *t;
984263bc 339{
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340 int flags = tp->t_flags;
341 tcflag_t iflag = t->c_iflag;
342 tcflag_t oflag = t->c_oflag;
343 tcflag_t lflag = t->c_lflag;
344 tcflag_t cflag = t->c_cflag;
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345
346 if (flags & RAW) {
347 iflag = IGNBRK;
348 lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
349 } else {
350 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
351 iflag |= BRKINT|IXON|IMAXBEL;
352 lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
353 if (flags & XTABS)
354 oflag |= OXTABS;
355 else
356 oflag &= ~OXTABS;
357 if (flags & CBREAK)
358 lflag &= ~ICANON;
359 else
360 lflag |= ICANON;
361 if (flags&CRMOD) {
362 iflag |= ICRNL;
363 oflag |= ONLCR;
364 } else {
365 iflag &= ~ICRNL;
366 oflag &= ~ONLCR;
367 }
368 }
369 if (flags&ECHO)
370 lflag |= ECHO;
371 else
372 lflag &= ~ECHO;
373
374 cflag &= ~(CSIZE|PARENB);
375 if (flags&(RAW|LITOUT|PASS8)) {
376 cflag |= CS8;
377 if (!(flags&(RAW|PASS8))
378 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
379 iflag |= ISTRIP;
380 else
381 iflag &= ~ISTRIP;
382 if (flags&(RAW|LITOUT))
383 oflag &= ~OPOST;
384 else
385 oflag |= OPOST;
386 } else {
387 cflag |= CS7|PARENB;
388 iflag |= ISTRIP;
389 oflag |= OPOST;
390 }
391 /* XXX don't set INPCK if RAW or PASS8? */
392 if ((flags&(EVENP|ODDP)) == EVENP) {
393 iflag |= INPCK;
394 cflag &= ~PARODD;
395 } else if ((flags&(EVENP|ODDP)) == ODDP) {
396 iflag |= INPCK;
397 cflag |= PARODD;
398 } else
399 iflag &= ~INPCK;
400 if (flags&TANDEM)
401 iflag |= IXOFF;
402 else
403 iflag &= ~IXOFF;
404 if ((flags&DECCTQ) == 0)
405 iflag |= IXANY;
406 else
407 iflag &= ~IXANY;
408 t->c_iflag = iflag;
409 t->c_oflag = oflag;
410 t->c_lflag = lflag;
411 t->c_cflag = cflag;
412}
413
414static void
415ttcompatsetlflags(tp, t)
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416 struct tty *tp;
417 struct termios *t;
984263bc 418{
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419 int flags = tp->t_flags;
420 tcflag_t iflag = t->c_iflag;
421 tcflag_t oflag = t->c_oflag;
422 tcflag_t lflag = t->c_lflag;
423 tcflag_t cflag = t->c_cflag;
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424
425 iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
426 if (flags&CRTERA)
427 lflag |= ECHOE;
428 else
429 lflag &= ~ECHOE;
430 if (flags&CRTKIL)
431 lflag |= ECHOKE;
432 else
433 lflag &= ~ECHOKE;
434 if (flags&PRTERA)
435 lflag |= ECHOPRT;
436 else
437 lflag &= ~ECHOPRT;
438 if (flags&CTLECH)
439 lflag |= ECHOCTL;
440 else
441 lflag &= ~ECHOCTL;
442 if (flags&TANDEM)
443 iflag |= IXOFF;
444 else
445 iflag &= ~IXOFF;
446 if ((flags&DECCTQ) == 0)
447 iflag |= IXANY;
448 else
449 iflag &= ~IXANY;
450 if (flags & MDMBUF)
451 cflag |= MDMBUF;
452 else
453 cflag &= ~MDMBUF;
454 if (flags&NOHANG)
455 cflag &= ~HUPCL;
456 else
457 cflag |= HUPCL;
458 lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
459 lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
460
461 /*
462 * The next if-else statement is copied from above so don't bother
463 * checking it separately. We could avoid fiddlling with the
464 * character size if the mode is already RAW or if neither the
465 * LITOUT bit or the PASS8 bit is being changed, but the delta of
466 * the change is not available here and skipping the RAW case would
467 * make the code different from above.
468 */
469 cflag &= ~(CSIZE|PARENB);
470 if (flags&(RAW|LITOUT|PASS8)) {
471 cflag |= CS8;
472 if (!(flags&(RAW|PASS8))
473 || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
474 iflag |= ISTRIP;
475 else
476 iflag &= ~ISTRIP;
477 if (flags&(RAW|LITOUT))
478 oflag &= ~OPOST;
479 else
480 oflag |= OPOST;
481 } else {
482 cflag |= CS7|PARENB;
483 iflag |= ISTRIP;
484 oflag |= OPOST;
485 }
486 t->c_iflag = iflag;
487 t->c_oflag = oflag;
488 t->c_lflag = lflag;
489 t->c_cflag = cflag;
490}
491#endif /* COMPAT_43 || COMPAT_SUNOS */