Commit | Line | Data |
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c906108c | 1 | /* Serial interface for local (hardwired) serial ports on Un*x like systems |
1e4728e7 | 2 | |
61baf725 | 3 | Copyright (C) 1992-2017 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "serial.h" | |
3eb25fda | 22 | #include "ser-base.h" |
c2c6d25f JM |
23 | #include "ser-unix.h" |
24 | ||
c906108c SS |
25 | #include <fcntl.h> |
26 | #include <sys/types.h> | |
27 | #include "terminal.h" | |
c2c6d25f | 28 | #include <sys/socket.h> |
438e1e42 | 29 | #include "gdb_sys_time.h" |
c2c6d25f | 30 | |
0ea3f30e | 31 | #include "gdb_select.h" |
23776285 | 32 | #include "gdbcmd.h" |
614c279d | 33 | #include "filestuff.h" |
be628ab8 | 34 | #include "gdb_termios.h" |
c2c6d25f | 35 | |
c906108c SS |
36 | #ifdef HAVE_TERMIOS |
37 | ||
38 | struct hardwire_ttystate | |
c5aa993b JM |
39 | { |
40 | struct termios termios; | |
41 | }; | |
23776285 MR |
42 | |
43 | #ifdef CRTSCTS | |
44 | /* Boolean to explicitly enable or disable h/w flow control. */ | |
45 | static int serial_hwflow; | |
46 | static void | |
47 | show_serial_hwflow (struct ui_file *file, int from_tty, | |
48 | struct cmd_list_element *c, const char *value) | |
49 | { | |
50 | fprintf_filtered (file, _("Hardware flow control is %s.\n"), value); | |
51 | } | |
52 | #endif | |
53 | ||
c906108c SS |
54 | #endif /* termios */ |
55 | ||
56 | #ifdef HAVE_TERMIO | |
57 | ||
58 | /* It is believed that all systems which have added job control to SVR3 | |
59 | (e.g. sco) have also added termios. Even if not, trying to figure out | |
60 | all the variations (TIOCGPGRP vs. TCGETPGRP, etc.) would be pretty | |
61 | bewildering. So we don't attempt it. */ | |
62 | ||
63 | struct hardwire_ttystate | |
c5aa993b JM |
64 | { |
65 | struct termio termio; | |
66 | }; | |
c906108c SS |
67 | #endif /* termio */ |
68 | ||
69 | #ifdef HAVE_SGTTY | |
c906108c | 70 | struct hardwire_ttystate |
c5aa993b JM |
71 | { |
72 | struct sgttyb sgttyb; | |
73 | struct tchars tc; | |
74 | struct ltchars ltc; | |
75 | /* Line discipline flags. */ | |
76 | int lmode; | |
77 | }; | |
c906108c SS |
78 | #endif /* sgtty */ |
79 | ||
819cc324 AC |
80 | static int hardwire_open (struct serial *scb, const char *name); |
81 | static void hardwire_raw (struct serial *scb); | |
c2c6d25f | 82 | static int rate_to_code (int rate); |
819cc324 | 83 | static int hardwire_setbaudrate (struct serial *scb, int rate); |
236af5e3 | 84 | static int hardwire_setparity (struct serial *scb, int parity); |
819cc324 AC |
85 | static void hardwire_close (struct serial *scb); |
86 | static int get_tty_state (struct serial *scb, | |
87 | struct hardwire_ttystate * state); | |
88 | static int set_tty_state (struct serial *scb, | |
89 | struct hardwire_ttystate * state); | |
90 | static serial_ttystate hardwire_get_tty_state (struct serial *scb); | |
91 | static int hardwire_set_tty_state (struct serial *scb, serial_ttystate state); | |
92 | static int hardwire_noflush_set_tty_state (struct serial *, serial_ttystate, | |
93 | serial_ttystate); | |
94 | static void hardwire_print_tty_state (struct serial *, serial_ttystate, | |
95 | struct ui_file *); | |
96 | static int hardwire_drain_output (struct serial *); | |
97 | static int hardwire_flush_output (struct serial *); | |
98 | static int hardwire_flush_input (struct serial *); | |
99 | static int hardwire_send_break (struct serial *); | |
100 | static int hardwire_setstopbits (struct serial *, int); | |
101 | ||
c2c6d25f JM |
102 | void _initialize_ser_hardwire (void); |
103 | ||
c378eb4e | 104 | /* Open up a real live device for serial I/O. */ |
c906108c SS |
105 | |
106 | static int | |
819cc324 | 107 | hardwire_open (struct serial *scb, const char *name) |
c906108c | 108 | { |
614c279d | 109 | scb->fd = gdb_open_cloexec (name, O_RDWR, 0); |
c906108c SS |
110 | if (scb->fd < 0) |
111 | return -1; | |
112 | ||
113 | return 0; | |
114 | } | |
115 | ||
116 | static int | |
819cc324 | 117 | get_tty_state (struct serial *scb, struct hardwire_ttystate *state) |
c906108c SS |
118 | { |
119 | #ifdef HAVE_TERMIOS | |
c5aa993b | 120 | if (tcgetattr (scb->fd, &state->termios) < 0) |
c906108c SS |
121 | return -1; |
122 | ||
123 | return 0; | |
124 | #endif | |
125 | ||
126 | #ifdef HAVE_TERMIO | |
127 | if (ioctl (scb->fd, TCGETA, &state->termio) < 0) | |
128 | return -1; | |
129 | return 0; | |
130 | #endif | |
131 | ||
132 | #ifdef HAVE_SGTTY | |
133 | if (ioctl (scb->fd, TIOCGETP, &state->sgttyb) < 0) | |
134 | return -1; | |
135 | if (ioctl (scb->fd, TIOCGETC, &state->tc) < 0) | |
136 | return -1; | |
137 | if (ioctl (scb->fd, TIOCGLTC, &state->ltc) < 0) | |
138 | return -1; | |
139 | if (ioctl (scb->fd, TIOCLGET, &state->lmode) < 0) | |
140 | return -1; | |
141 | ||
142 | return 0; | |
143 | #endif | |
144 | } | |
145 | ||
146 | static int | |
819cc324 | 147 | set_tty_state (struct serial *scb, struct hardwire_ttystate *state) |
c906108c SS |
148 | { |
149 | #ifdef HAVE_TERMIOS | |
c5aa993b | 150 | if (tcsetattr (scb->fd, TCSANOW, &state->termios) < 0) |
c906108c SS |
151 | return -1; |
152 | ||
153 | return 0; | |
154 | #endif | |
155 | ||
156 | #ifdef HAVE_TERMIO | |
157 | if (ioctl (scb->fd, TCSETA, &state->termio) < 0) | |
158 | return -1; | |
159 | return 0; | |
160 | #endif | |
161 | ||
162 | #ifdef HAVE_SGTTY | |
163 | if (ioctl (scb->fd, TIOCSETN, &state->sgttyb) < 0) | |
164 | return -1; | |
165 | if (ioctl (scb->fd, TIOCSETC, &state->tc) < 0) | |
166 | return -1; | |
167 | if (ioctl (scb->fd, TIOCSLTC, &state->ltc) < 0) | |
168 | return -1; | |
169 | if (ioctl (scb->fd, TIOCLSET, &state->lmode) < 0) | |
170 | return -1; | |
171 | ||
172 | return 0; | |
173 | #endif | |
174 | } | |
175 | ||
176 | static serial_ttystate | |
819cc324 | 177 | hardwire_get_tty_state (struct serial *scb) |
c906108c | 178 | { |
8d749320 | 179 | struct hardwire_ttystate *state = XNEW (struct hardwire_ttystate); |
c906108c | 180 | |
c5aa993b | 181 | if (get_tty_state (scb, state)) |
0b2381f5 MS |
182 | { |
183 | xfree (state); | |
184 | return NULL; | |
185 | } | |
c906108c | 186 | |
c5aa993b | 187 | return (serial_ttystate) state; |
c906108c SS |
188 | } |
189 | ||
1e182ce8 UW |
190 | static serial_ttystate |
191 | hardwire_copy_tty_state (struct serial *scb, serial_ttystate ttystate) | |
192 | { | |
8d749320 | 193 | struct hardwire_ttystate *state = XNEW (struct hardwire_ttystate); |
1e182ce8 | 194 | |
1e182ce8 UW |
195 | *state = *(struct hardwire_ttystate *) ttystate; |
196 | ||
197 | return (serial_ttystate) state; | |
198 | } | |
199 | ||
c906108c | 200 | static int |
819cc324 | 201 | hardwire_set_tty_state (struct serial *scb, serial_ttystate ttystate) |
c906108c SS |
202 | { |
203 | struct hardwire_ttystate *state; | |
204 | ||
c5aa993b | 205 | state = (struct hardwire_ttystate *) ttystate; |
c906108c | 206 | |
c5aa993b | 207 | return set_tty_state (scb, state); |
c906108c SS |
208 | } |
209 | ||
210 | static int | |
819cc324 | 211 | hardwire_noflush_set_tty_state (struct serial *scb, |
c2c6d25f JM |
212 | serial_ttystate new_ttystate, |
213 | serial_ttystate old_ttystate) | |
c906108c SS |
214 | { |
215 | struct hardwire_ttystate new_state; | |
216 | #ifdef HAVE_SGTTY | |
217 | struct hardwire_ttystate *state = (struct hardwire_ttystate *) old_ttystate; | |
218 | #endif | |
219 | ||
c5aa993b | 220 | new_state = *(struct hardwire_ttystate *) new_ttystate; |
c906108c SS |
221 | |
222 | /* Don't change in or out of raw mode; we don't want to flush input. | |
223 | termio and termios have no such restriction; for them flushing input | |
224 | is separate from setting the attributes. */ | |
225 | ||
226 | #ifdef HAVE_SGTTY | |
227 | if (state->sgttyb.sg_flags & RAW) | |
228 | new_state.sgttyb.sg_flags |= RAW; | |
229 | else | |
230 | new_state.sgttyb.sg_flags &= ~RAW; | |
231 | ||
232 | /* I'm not sure whether this is necessary; the manpage just mentions | |
233 | RAW not CBREAK. */ | |
234 | if (state->sgttyb.sg_flags & CBREAK) | |
235 | new_state.sgttyb.sg_flags |= CBREAK; | |
236 | else | |
237 | new_state.sgttyb.sg_flags &= ~CBREAK; | |
238 | #endif | |
239 | ||
240 | return set_tty_state (scb, &new_state); | |
241 | } | |
242 | ||
243 | static void | |
819cc324 | 244 | hardwire_print_tty_state (struct serial *scb, |
c2c6d25f | 245 | serial_ttystate ttystate, |
d9fcf2fb | 246 | struct ui_file *stream) |
c906108c SS |
247 | { |
248 | struct hardwire_ttystate *state = (struct hardwire_ttystate *) ttystate; | |
249 | int i; | |
250 | ||
251 | #ifdef HAVE_TERMIOS | |
c2c6d25f | 252 | fprintf_filtered (stream, "c_iflag = 0x%x, c_oflag = 0x%x,\n", |
2acceee2 JM |
253 | (int) state->termios.c_iflag, |
254 | (int) state->termios.c_oflag); | |
c2c6d25f | 255 | fprintf_filtered (stream, "c_cflag = 0x%x, c_lflag = 0x%x\n", |
2acceee2 JM |
256 | (int) state->termios.c_cflag, |
257 | (int) state->termios.c_lflag); | |
c906108c SS |
258 | #if 0 |
259 | /* This not in POSIX, and is not really documented by those systems | |
260 | which have it (at least not Sun). */ | |
c2c6d25f | 261 | fprintf_filtered (stream, "c_line = 0x%x.\n", state->termios.c_line); |
c906108c | 262 | #endif |
c2c6d25f | 263 | fprintf_filtered (stream, "c_cc: "); |
c906108c | 264 | for (i = 0; i < NCCS; i += 1) |
c2c6d25f JM |
265 | fprintf_filtered (stream, "0x%x ", state->termios.c_cc[i]); |
266 | fprintf_filtered (stream, "\n"); | |
c906108c SS |
267 | #endif |
268 | ||
269 | #ifdef HAVE_TERMIO | |
c2c6d25f JM |
270 | fprintf_filtered (stream, "c_iflag = 0x%x, c_oflag = 0x%x,\n", |
271 | state->termio.c_iflag, state->termio.c_oflag); | |
272 | fprintf_filtered (stream, "c_cflag = 0x%x, c_lflag = 0x%x, c_line = 0x%x.\n", | |
273 | state->termio.c_cflag, state->termio.c_lflag, | |
274 | state->termio.c_line); | |
275 | fprintf_filtered (stream, "c_cc: "); | |
c906108c | 276 | for (i = 0; i < NCC; i += 1) |
c2c6d25f JM |
277 | fprintf_filtered (stream, "0x%x ", state->termio.c_cc[i]); |
278 | fprintf_filtered (stream, "\n"); | |
c906108c SS |
279 | #endif |
280 | ||
281 | #ifdef HAVE_SGTTY | |
c2c6d25f JM |
282 | fprintf_filtered (stream, "sgttyb.sg_flags = 0x%x.\n", |
283 | state->sgttyb.sg_flags); | |
c906108c | 284 | |
c2c6d25f | 285 | fprintf_filtered (stream, "tchars: "); |
c5aa993b | 286 | for (i = 0; i < (int) sizeof (struct tchars); i++) |
c2c6d25f | 287 | fprintf_filtered (stream, "0x%x ", ((unsigned char *) &state->tc)[i]); |
64122a8b | 288 | fprintf_filtered (stream, "\n"); |
c906108c | 289 | |
c2c6d25f | 290 | fprintf_filtered (stream, "ltchars: "); |
c5aa993b | 291 | for (i = 0; i < (int) sizeof (struct ltchars); i++) |
c2c6d25f JM |
292 | fprintf_filtered (stream, "0x%x ", ((unsigned char *) &state->ltc)[i]); |
293 | fprintf_filtered (stream, "\n"); | |
c906108c | 294 | |
c2c6d25f | 295 | fprintf_filtered (stream, "lmode: 0x%x\n", state->lmode); |
c906108c SS |
296 | #endif |
297 | } | |
298 | ||
c378eb4e MS |
299 | /* Wait for the output to drain away, as opposed to flushing |
300 | (discarding) it. */ | |
c906108c SS |
301 | |
302 | static int | |
819cc324 | 303 | hardwire_drain_output (struct serial *scb) |
c906108c SS |
304 | { |
305 | #ifdef HAVE_TERMIOS | |
306 | return tcdrain (scb->fd); | |
307 | #endif | |
308 | ||
309 | #ifdef HAVE_TERMIO | |
310 | return ioctl (scb->fd, TCSBRK, 1); | |
311 | #endif | |
312 | ||
313 | #ifdef HAVE_SGTTY | |
314 | /* Get the current state and then restore it using TIOCSETP, | |
315 | which should cause the output to drain and pending input | |
c378eb4e | 316 | to be discarded. */ |
c906108c SS |
317 | { |
318 | struct hardwire_ttystate state; | |
433759f7 | 319 | |
c906108c SS |
320 | if (get_tty_state (scb, &state)) |
321 | { | |
322 | return (-1); | |
323 | } | |
324 | else | |
325 | { | |
326 | return (ioctl (scb->fd, TIOCSETP, &state.sgttyb)); | |
327 | } | |
328 | } | |
c5aa993b | 329 | #endif |
c906108c SS |
330 | } |
331 | ||
332 | static int | |
819cc324 | 333 | hardwire_flush_output (struct serial *scb) |
c906108c SS |
334 | { |
335 | #ifdef HAVE_TERMIOS | |
336 | return tcflush (scb->fd, TCOFLUSH); | |
337 | #endif | |
338 | ||
339 | #ifdef HAVE_TERMIO | |
340 | return ioctl (scb->fd, TCFLSH, 1); | |
341 | #endif | |
342 | ||
343 | #ifdef HAVE_SGTTY | |
344 | /* This flushes both input and output, but we can't do better. */ | |
345 | return ioctl (scb->fd, TIOCFLUSH, 0); | |
c5aa993b | 346 | #endif |
c906108c SS |
347 | } |
348 | ||
349 | static int | |
819cc324 | 350 | hardwire_flush_input (struct serial *scb) |
c906108c | 351 | { |
dd5da072 | 352 | ser_base_flush_input (scb); |
c906108c SS |
353 | |
354 | #ifdef HAVE_TERMIOS | |
355 | return tcflush (scb->fd, TCIFLUSH); | |
356 | #endif | |
357 | ||
358 | #ifdef HAVE_TERMIO | |
359 | return ioctl (scb->fd, TCFLSH, 0); | |
360 | #endif | |
361 | ||
362 | #ifdef HAVE_SGTTY | |
363 | /* This flushes both input and output, but we can't do better. */ | |
364 | return ioctl (scb->fd, TIOCFLUSH, 0); | |
c5aa993b | 365 | #endif |
c906108c SS |
366 | } |
367 | ||
368 | static int | |
819cc324 | 369 | hardwire_send_break (struct serial *scb) |
c906108c SS |
370 | { |
371 | #ifdef HAVE_TERMIOS | |
372 | return tcsendbreak (scb->fd, 0); | |
373 | #endif | |
374 | ||
375 | #ifdef HAVE_TERMIO | |
376 | return ioctl (scb->fd, TCSBRK, 0); | |
377 | #endif | |
378 | ||
379 | #ifdef HAVE_SGTTY | |
380 | { | |
381 | int status; | |
c906108c SS |
382 | |
383 | status = ioctl (scb->fd, TIOCSBRK, 0); | |
384 | ||
385 | /* Can't use usleep; it doesn't exist in BSD 4.2. */ | |
dcb626be JB |
386 | /* Note that if this gdb_select() is interrupted by a signal it will not |
387 | wait the full length of time. I think that is OK. */ | |
388 | gdb_usleep (250000); | |
c906108c SS |
389 | status = ioctl (scb->fd, TIOCCBRK, 0); |
390 | return status; | |
391 | } | |
c5aa993b | 392 | #endif |
c906108c SS |
393 | } |
394 | ||
395 | static void | |
819cc324 | 396 | hardwire_raw (struct serial *scb) |
c906108c SS |
397 | { |
398 | struct hardwire_ttystate state; | |
399 | ||
c5aa993b | 400 | if (get_tty_state (scb, &state)) |
3e43a32a MS |
401 | fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", |
402 | safe_strerror (errno)); | |
c906108c SS |
403 | |
404 | #ifdef HAVE_TERMIOS | |
405 | state.termios.c_iflag = 0; | |
406 | state.termios.c_oflag = 0; | |
407 | state.termios.c_lflag = 0; | |
236af5e3 | 408 | state.termios.c_cflag &= ~CSIZE; |
c906108c | 409 | state.termios.c_cflag |= CLOCAL | CS8; |
23776285 MR |
410 | #ifdef CRTSCTS |
411 | /* h/w flow control. */ | |
412 | if (serial_hwflow) | |
413 | state.termios.c_cflag |= CRTSCTS; | |
414 | else | |
415 | state.termios.c_cflag &= ~CRTSCTS; | |
416 | #ifdef CRTS_IFLOW | |
417 | if (serial_hwflow) | |
418 | state.termios.c_cflag |= CRTS_IFLOW; | |
419 | else | |
420 | state.termios.c_cflag &= ~CRTS_IFLOW; | |
421 | #endif | |
422 | #endif | |
c906108c SS |
423 | state.termios.c_cc[VMIN] = 0; |
424 | state.termios.c_cc[VTIME] = 0; | |
425 | #endif | |
426 | ||
427 | #ifdef HAVE_TERMIO | |
428 | state.termio.c_iflag = 0; | |
429 | state.termio.c_oflag = 0; | |
430 | state.termio.c_lflag = 0; | |
236af5e3 | 431 | state.termio.c_cflag &= ~CSIZE; |
c906108c SS |
432 | state.termio.c_cflag |= CLOCAL | CS8; |
433 | state.termio.c_cc[VMIN] = 0; | |
434 | state.termio.c_cc[VTIME] = 0; | |
435 | #endif | |
436 | ||
437 | #ifdef HAVE_SGTTY | |
438 | state.sgttyb.sg_flags |= RAW | ANYP; | |
439 | state.sgttyb.sg_flags &= ~(CBREAK | ECHO); | |
440 | #endif | |
441 | ||
c906108c | 442 | if (set_tty_state (scb, &state)) |
3e43a32a MS |
443 | fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n", |
444 | safe_strerror (errno)); | |
c906108c SS |
445 | } |
446 | ||
c906108c SS |
447 | #ifndef B19200 |
448 | #define B19200 EXTA | |
449 | #endif | |
450 | ||
451 | #ifndef B38400 | |
452 | #define B38400 EXTB | |
453 | #endif | |
454 | ||
455 | /* Translate baud rates from integers to damn B_codes. Unix should | |
456 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
457 | ||
458 | static struct | |
459 | { | |
460 | int rate; | |
461 | int code; | |
462 | } | |
463 | baudtab[] = | |
464 | { | |
c5aa993b JM |
465 | { |
466 | 50, B50 | |
467 | } | |
468 | , | |
469 | { | |
470 | 75, B75 | |
471 | } | |
472 | , | |
473 | { | |
474 | 110, B110 | |
475 | } | |
476 | , | |
477 | { | |
478 | 134, B134 | |
479 | } | |
480 | , | |
481 | { | |
482 | 150, B150 | |
483 | } | |
484 | , | |
485 | { | |
486 | 200, B200 | |
487 | } | |
488 | , | |
489 | { | |
490 | 300, B300 | |
491 | } | |
492 | , | |
493 | { | |
494 | 600, B600 | |
495 | } | |
496 | , | |
497 | { | |
498 | 1200, B1200 | |
499 | } | |
500 | , | |
501 | { | |
502 | 1800, B1800 | |
503 | } | |
504 | , | |
505 | { | |
506 | 2400, B2400 | |
507 | } | |
508 | , | |
509 | { | |
510 | 4800, B4800 | |
511 | } | |
512 | , | |
513 | { | |
514 | 9600, B9600 | |
515 | } | |
516 | , | |
517 | { | |
518 | 19200, B19200 | |
519 | } | |
520 | , | |
521 | { | |
522 | 38400, B38400 | |
523 | } | |
524 | , | |
c906108c | 525 | #ifdef B57600 |
c5aa993b JM |
526 | { |
527 | 57600, B57600 | |
528 | } | |
529 | , | |
c906108c SS |
530 | #endif |
531 | #ifdef B115200 | |
c5aa993b JM |
532 | { |
533 | 115200, B115200 | |
534 | } | |
535 | , | |
c906108c SS |
536 | #endif |
537 | #ifdef B230400 | |
c5aa993b JM |
538 | { |
539 | 230400, B230400 | |
540 | } | |
541 | , | |
c906108c SS |
542 | #endif |
543 | #ifdef B460800 | |
c5aa993b JM |
544 | { |
545 | 460800, B460800 | |
546 | } | |
547 | , | |
c906108c | 548 | #endif |
c5aa993b JM |
549 | { |
550 | -1, -1 | |
551 | } | |
552 | , | |
c906108c SS |
553 | }; |
554 | ||
c5aa993b | 555 | static int |
c2c6d25f | 556 | rate_to_code (int rate) |
c906108c SS |
557 | { |
558 | int i; | |
559 | ||
560 | for (i = 0; baudtab[i].rate != -1; i++) | |
08b4f080 | 561 | { |
c378eb4e | 562 | /* test for perfect macth. */ |
08b4f080 FN |
563 | if (rate == baudtab[i].rate) |
564 | return baudtab[i].code; | |
565 | else | |
566 | { | |
c378eb4e | 567 | /* check if it is in between valid values. */ |
08b4f080 FN |
568 | if (rate < baudtab[i].rate) |
569 | { | |
570 | if (i) | |
571 | { | |
3e43a32a MS |
572 | warning (_("Invalid baud rate %d. " |
573 | "Closest values are %d and %d."), | |
574 | rate, baudtab[i - 1].rate, baudtab[i].rate); | |
08b4f080 FN |
575 | } |
576 | else | |
577 | { | |
8a3fe4f8 | 578 | warning (_("Invalid baud rate %d. Minimum value is %d."), |
3e43a32a | 579 | rate, baudtab[0].rate); |
08b4f080 FN |
580 | } |
581 | return -1; | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
c378eb4e | 586 | /* The requested speed was too large. */ |
8a3fe4f8 | 587 | warning (_("Invalid baud rate %d. Maximum value is %d."), |
08b4f080 | 588 | rate, baudtab[i - 1].rate); |
c906108c SS |
589 | return -1; |
590 | } | |
591 | ||
592 | static int | |
819cc324 | 593 | hardwire_setbaudrate (struct serial *scb, int rate) |
c906108c SS |
594 | { |
595 | struct hardwire_ttystate state; | |
08b4f080 FN |
596 | int baud_code = rate_to_code (rate); |
597 | ||
598 | if (baud_code < 0) | |
599 | { | |
600 | /* The baud rate was not valid. | |
c378eb4e | 601 | A warning has already been issued. */ |
08b4f080 FN |
602 | errno = EINVAL; |
603 | return -1; | |
604 | } | |
c906108c | 605 | |
c5aa993b | 606 | if (get_tty_state (scb, &state)) |
c906108c SS |
607 | return -1; |
608 | ||
609 | #ifdef HAVE_TERMIOS | |
08b4f080 FN |
610 | cfsetospeed (&state.termios, baud_code); |
611 | cfsetispeed (&state.termios, baud_code); | |
c906108c SS |
612 | #endif |
613 | ||
614 | #ifdef HAVE_TERMIO | |
615 | #ifndef CIBAUD | |
616 | #define CIBAUD CBAUD | |
617 | #endif | |
618 | ||
619 | state.termio.c_cflag &= ~(CBAUD | CIBAUD); | |
08b4f080 | 620 | state.termio.c_cflag |= baud_code; |
c906108c SS |
621 | #endif |
622 | ||
623 | #ifdef HAVE_SGTTY | |
08b4f080 FN |
624 | state.sgttyb.sg_ispeed = baud_code; |
625 | state.sgttyb.sg_ospeed = baud_code; | |
c906108c SS |
626 | #endif |
627 | ||
628 | return set_tty_state (scb, &state); | |
629 | } | |
630 | ||
631 | static int | |
819cc324 | 632 | hardwire_setstopbits (struct serial *scb, int num) |
c906108c SS |
633 | { |
634 | struct hardwire_ttystate state; | |
635 | int newbit; | |
636 | ||
c5aa993b | 637 | if (get_tty_state (scb, &state)) |
c906108c SS |
638 | return -1; |
639 | ||
640 | switch (num) | |
641 | { | |
642 | case SERIAL_1_STOPBITS: | |
643 | newbit = 0; | |
644 | break; | |
645 | case SERIAL_1_AND_A_HALF_STOPBITS: | |
646 | case SERIAL_2_STOPBITS: | |
647 | newbit = 1; | |
648 | break; | |
649 | default: | |
650 | return 1; | |
651 | } | |
652 | ||
653 | #ifdef HAVE_TERMIOS | |
654 | if (!newbit) | |
655 | state.termios.c_cflag &= ~CSTOPB; | |
656 | else | |
c5aa993b | 657 | state.termios.c_cflag |= CSTOPB; /* two bits */ |
c906108c SS |
658 | #endif |
659 | ||
660 | #ifdef HAVE_TERMIO | |
661 | if (!newbit) | |
662 | state.termio.c_cflag &= ~CSTOPB; | |
663 | else | |
c5aa993b | 664 | state.termio.c_cflag |= CSTOPB; /* two bits */ |
c906108c SS |
665 | #endif |
666 | ||
667 | #ifdef HAVE_SGTTY | |
668 | return 0; /* sgtty doesn't support this */ | |
669 | #endif | |
670 | ||
671 | return set_tty_state (scb, &state); | |
672 | } | |
673 | ||
236af5e3 YG |
674 | /* Implement the "setparity" serial_ops callback. */ |
675 | ||
676 | static int | |
677 | hardwire_setparity (struct serial *scb, int parity) | |
678 | { | |
679 | struct hardwire_ttystate state; | |
680 | int newparity = 0; | |
681 | ||
682 | if (get_tty_state (scb, &state)) | |
683 | return -1; | |
684 | ||
685 | switch (parity) | |
686 | { | |
687 | case GDBPARITY_NONE: | |
688 | newparity = 0; | |
689 | break; | |
690 | case GDBPARITY_ODD: | |
691 | newparity = PARENB | PARODD; | |
692 | break; | |
693 | case GDBPARITY_EVEN: | |
694 | newparity = PARENB; | |
695 | break; | |
696 | default: | |
697 | internal_warning (__FILE__, __LINE__, | |
8a4506c0 | 698 | "Incorrect parity value: %d", parity); |
236af5e3 YG |
699 | return -1; |
700 | } | |
701 | ||
702 | #ifdef HAVE_TERMIOS | |
703 | state.termios.c_cflag &= ~(PARENB | PARODD); | |
704 | state.termios.c_cflag |= newparity; | |
705 | #endif | |
706 | ||
707 | #ifdef HAVE_TERMIO | |
708 | state.termio.c_cflag &= ~(PARENB | PARODD); | |
709 | state.termio.c_cflag |= newparity; | |
710 | #endif | |
711 | ||
712 | #ifdef HAVE_SGTTY | |
713 | return 0; /* sgtty doesn't support this */ | |
714 | #endif | |
715 | return set_tty_state (scb, &state); | |
716 | } | |
717 | ||
718 | ||
c906108c | 719 | static void |
819cc324 | 720 | hardwire_close (struct serial *scb) |
c906108c SS |
721 | { |
722 | if (scb->fd < 0) | |
723 | return; | |
724 | ||
c5aa993b | 725 | close (scb->fd); |
c906108c SS |
726 | scb->fd = -1; |
727 | } | |
c2c6d25f | 728 | \f |
2acceee2 | 729 | \f |
433759f7 | 730 | |
12e8c7d7 TT |
731 | /* The hardwire ops. */ |
732 | ||
733 | static const struct serial_ops hardwire_ops = | |
734 | { | |
735 | "hardwire", | |
736 | hardwire_open, | |
737 | hardwire_close, | |
738 | NULL, | |
9bcbdca8 | 739 | ser_base_readchar, |
12e8c7d7 TT |
740 | ser_base_write, |
741 | hardwire_flush_output, | |
742 | hardwire_flush_input, | |
743 | hardwire_send_break, | |
744 | hardwire_raw, | |
745 | hardwire_get_tty_state, | |
746 | hardwire_copy_tty_state, | |
747 | hardwire_set_tty_state, | |
748 | hardwire_print_tty_state, | |
749 | hardwire_noflush_set_tty_state, | |
750 | hardwire_setbaudrate, | |
751 | hardwire_setstopbits, | |
236af5e3 | 752 | hardwire_setparity, |
12e8c7d7 TT |
753 | hardwire_drain_output, |
754 | ser_base_async, | |
755 | ser_unix_read_prim, | |
756 | ser_unix_write_prim | |
757 | }; | |
758 | ||
759 | void | |
760 | _initialize_ser_hardwire (void) | |
761 | { | |
762 | serial_add_interface (&hardwire_ops); | |
23776285 MR |
763 | |
764 | #ifdef HAVE_TERMIOS | |
765 | #ifdef CRTSCTS | |
766 | add_setshow_boolean_cmd ("remoteflow", no_class, | |
767 | &serial_hwflow, _("\ | |
768 | Set use of hardware flow control for remote serial I/O."), _("\ | |
769 | Show use of hardware flow control for remote serial I/O."), _("\ | |
770 | Enable or disable hardware flow control (RTS/CTS) on the serial port\n\ | |
771 | when debugging using remote targets."), | |
772 | NULL, | |
773 | show_serial_hwflow, | |
774 | &setlist, &showlist); | |
775 | #endif | |
776 | #endif | |
c906108c | 777 | } |
b4505029 MM |
778 | |
779 | int | |
780 | ser_unix_read_prim (struct serial *scb, size_t count) | |
781 | { | |
75ee5925 | 782 | return read (scb->fd, scb->buf, count); |
b4505029 MM |
783 | } |
784 | ||
785 | int | |
786 | ser_unix_write_prim (struct serial *scb, const void *buf, size_t len) | |
787 | { | |
b4505029 MM |
788 | return write (scb->fd, buf, len); |
789 | } |