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