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Commit | Line | Data |
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74510d4b ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
f77bb46d ML |
5 | * Copyright (C) 2010-2015 Uwe Hermann <uwe@hermann-uwe.de> |
6 | * Copyright (C) 2013-2015 Martin Ling <martin-libserialport@earth.li> | |
31b3a8f5 | 7 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> |
a93fb468 | 8 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> |
74510d4b ML |
9 | * |
10 | * This program is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU Lesser General Public License as | |
12 | * published by the Free Software Foundation, either version 3 of the | |
13 | * License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public License | |
21 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
1a584c45 | 24 | #include <config.h> |
f6a1fb65 | 25 | #include "libserialport.h" |
e33dcf90 | 26 | #include "libserialport_internal.h" |
da2748bf | 27 | |
6c6aebe7 | 28 | static const struct std_baudrate std_baudrates[] = { |
da2748bf ML |
29 | #ifdef _WIN32 |
30 | /* | |
31 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
32 | * have documented CBR_* macros. | |
33 | */ | |
34 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
35 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 36 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 37 | #else |
eac329d2 UH |
38 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
39 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
40 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
41 | BAUD(230400), | |
da2748bf | 42 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 43 | BAUD(460800), |
da2748bf ML |
44 | #endif |
45 | #endif | |
46 | }; | |
47 | ||
6c6aebe7 UH |
48 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) |
49 | ||
863b35e6 ML |
50 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
51 | ||
eb6ed20f ML |
52 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
53 | struct sp_port_config *config); | |
e33dcf90 | 54 | |
eb6ed20f ML |
55 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
56 | const struct sp_port_config *config); | |
80186526 | 57 | |
bd0fb609 | 58 | #ifndef _WIN32 |
9a7945af ML |
59 | |
60 | /* Timing abstraction */ | |
61 | ||
62 | struct time { | |
63 | struct timeval tv; | |
64 | }; | |
65 | ||
32dbe2d2 ML |
66 | struct timeout { |
67 | unsigned int ms; | |
68 | struct time start, delta, now, end; | |
69 | struct timeval delta_tv; | |
70 | bool overflow; | |
71 | }; | |
72 | ||
9a7945af ML |
73 | #define TIME_ZERO {.tv = {0, 0}} |
74 | #define TIME_MS(ms) {.tv = {ms / 1000, (ms % 1000) * 1000}} | |
75 | ||
32dbe2d2 ML |
76 | const struct time max_delta = TIME_MS(INT_MAX); |
77 | ||
9a7945af | 78 | static void time_get(struct time *time) |
573feabc | 79 | { |
f40ea9d4 ML |
80 | #ifdef HAVE_CLOCK_GETTIME |
81 | struct timespec ts; | |
7fb9a7b0 ML |
82 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) |
83 | clock_gettime(CLOCK_REALTIME, &ts); | |
9a7945af ML |
84 | time->tv.tv_sec = ts.tv_sec; |
85 | time->tv.tv_usec = ts.tv_nsec / 1000; | |
192e7749 ML |
86 | #elif defined(__APPLE__) |
87 | mach_timebase_info_data_t info; | |
88 | mach_timebase_info(&info); | |
89 | uint64_t ticks = mach_absolute_time(); | |
90 | uint64_t ns = (ticks * info.numer) / info.denom; | |
9a7945af ML |
91 | time->tv.tv_sec = ns / 1000000000; |
92 | time->tv.tv_usec = (ns % 1000000000) / 1000; | |
f40ea9d4 | 93 | #else |
9a7945af | 94 | gettimeofday(&time->tv, NULL); |
f40ea9d4 | 95 | #endif |
573feabc | 96 | } |
9a7945af ML |
97 | |
98 | static void time_set_ms(struct time *time, unsigned int ms) | |
99 | { | |
100 | time->tv.tv_sec = ms / 1000; | |
101 | time->tv.tv_usec = (ms % 1000) * 1000; | |
102 | } | |
103 | ||
104 | static void time_add(const struct time *a, | |
105 | const struct time *b, struct time *result) | |
106 | { | |
107 | timeradd(&a->tv, &b->tv, &result->tv); | |
108 | } | |
109 | ||
110 | static void time_sub(const struct time *a, | |
111 | const struct time *b, struct time *result) | |
112 | { | |
113 | timersub(&a->tv, &b->tv, &result->tv); | |
114 | } | |
115 | ||
116 | static bool time_greater(const struct time *a, const struct time *b) | |
117 | { | |
118 | return timercmp(&a->tv, &b->tv, >); | |
119 | } | |
120 | ||
121 | static void time_as_timeval(const struct time *time, struct timeval *tv) | |
122 | { | |
123 | *tv = time->tv; | |
124 | } | |
125 | ||
126 | static unsigned int time_as_ms(const struct time *time) | |
127 | { | |
128 | return time->tv.tv_sec * 1000 + time->tv.tv_usec / 1000; | |
129 | } | |
130 | ||
32dbe2d2 ML |
131 | static void timeout_start(struct timeout *timeout, unsigned int timeout_ms) |
132 | { | |
133 | timeout->ms = timeout_ms; | |
134 | ||
135 | timeout->overflow = (timeout->ms > INT_MAX); | |
136 | ||
137 | /* Get time at start of operation. */ | |
138 | time_get(&timeout->start); | |
139 | /* Define duration of timeout. */ | |
140 | time_set_ms(&timeout->delta, timeout_ms); | |
141 | /* Calculate time at which we should give up. */ | |
142 | time_add(&timeout->start, &timeout->delta, &timeout->end); | |
143 | } | |
144 | ||
145 | static bool timeout_check(struct timeout *timeout) | |
146 | { | |
147 | if (timeout->ms == 0) | |
148 | return false; | |
149 | ||
150 | time_get(&timeout->now); | |
151 | time_sub(&timeout->end, &timeout->now, &timeout->delta); | |
152 | if ((timeout->overflow = time_greater(&timeout->delta, &max_delta))) | |
153 | timeout->delta = max_delta; | |
154 | ||
155 | return time_greater(&timeout->now, &timeout->end); | |
156 | } | |
157 | ||
158 | static struct timeval *timeout_timeval(struct timeout *timeout) | |
159 | { | |
160 | if (timeout->ms == 0) | |
161 | return NULL; | |
162 | ||
163 | time_as_timeval(&timeout->delta, &timeout->delta_tv); | |
164 | ||
165 | return &timeout->delta_tv; | |
166 | } | |
167 | ||
168 | static unsigned int timeout_remaining_ms(struct timeout *timeout) | |
169 | { | |
170 | if (timeout->ms == 0) | |
171 | return -1; | |
172 | else if (timeout->overflow) | |
173 | return INT_MAX; | |
174 | else | |
175 | return time_as_ms(&timeout->delta); | |
176 | } | |
177 | ||
bd0fb609 | 178 | #endif |
573feabc | 179 | |
970f279a | 180 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
181 | { |
182 | struct sp_port *port; | |
5a8810e2 | 183 | #ifndef NO_PORT_METADATA |
a93fb468 | 184 | enum sp_return ret; |
5a8810e2 | 185 | #endif |
5919c913 | 186 | int len; |
d54e9004 | 187 | |
c33efc48 ML |
188 | TRACE("%s, %p", portname, port_ptr); |
189 | ||
32b5ac05 | 190 | if (!port_ptr) |
c33efc48 | 191 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 192 | |
77f262c4 ML |
193 | *port_ptr = NULL; |
194 | ||
d4babed2 | 195 | if (!portname) |
c33efc48 | 196 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 197 | |
7890cef6 | 198 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 199 | |
95bad38c ST |
200 | #if !defined(_WIN32) && defined(HAVE_REALPATH) |
201 | /* | |
202 | * get_port_details() below tries to be too smart and figure out | |
203 | * some transport properties from the port name which breaks with | |
204 | * symlinks. Therefore we canonicalize the portname first. | |
205 | */ | |
206 | char pathbuf[PATH_MAX + 1]; | |
207 | char *res = realpath(portname, pathbuf); | |
208 | if (!res) | |
209 | RETURN_ERROR(SP_ERR_ARG, "Could not retrieve realpath behind port name"); | |
210 | ||
211 | portname = pathbuf; | |
212 | #endif | |
213 | ||
d54e9004 | 214 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 215 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 216 | |
5919c913 ML |
217 | len = strlen(portname) + 1; |
218 | ||
eac329d2 | 219 | if (!(port->name = malloc(len))) { |
d54e9004 | 220 | free(port); |
c33efc48 | 221 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
222 | } |
223 | ||
224 | memcpy(port->name, portname, len); | |
225 | ||
8f471c66 | 226 | #ifdef _WIN32 |
e31f2c6b | 227 | port->usb_path = NULL; |
8f471c66 | 228 | port->hdl = INVALID_HANDLE_VALUE; |
39df7833 ML |
229 | port->write_buf = NULL; |
230 | port->write_buf_size = 0; | |
8f471c66 ML |
231 | #else |
232 | port->fd = -1; | |
233 | #endif | |
234 | ||
e33dcf90 ML |
235 | port->description = NULL; |
236 | port->transport = SP_TRANSPORT_NATIVE; | |
237 | port->usb_bus = -1; | |
238 | port->usb_address = -1; | |
239 | port->usb_vid = -1; | |
240 | port->usb_pid = -1; | |
241 | port->usb_manufacturer = NULL; | |
242 | port->usb_product = NULL; | |
243 | port->usb_serial = NULL; | |
244 | port->bluetooth_address = NULL; | |
245 | ||
e4ce975a | 246 | #ifndef NO_PORT_METADATA |
e33dcf90 | 247 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
248 | sp_free_port(port); |
249 | return ret; | |
250 | } | |
e4ce975a | 251 | #endif |
a93fb468 | 252 | |
77f262c4 ML |
253 | *port_ptr = port; |
254 | ||
c33efc48 | 255 | RETURN_OK(); |
d54e9004 ML |
256 | } |
257 | ||
970f279a | 258 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
259 | { |
260 | TRACE("%p", port); | |
261 | ||
262 | if (!port) | |
263 | return NULL; | |
264 | ||
9caa2e86 | 265 | RETURN_STRING(port->name); |
1c5aae9d ML |
266 | } |
267 | ||
f1480939 | 268 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
269 | { |
270 | TRACE("%p", port); | |
271 | ||
272 | if (!port || !port->description) | |
273 | return NULL; | |
274 | ||
9caa2e86 | 275 | RETURN_STRING(port->description); |
a93fb468 AJ |
276 | } |
277 | ||
ad036cc8 | 278 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
279 | { |
280 | TRACE("%p", port); | |
281 | ||
282 | if (!port) | |
283 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
284 | ||
9caa2e86 | 285 | RETURN_INT(port->transport); |
a93fb468 AJ |
286 | } |
287 | ||
970f279a AJ |
288 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
289 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
290 | { |
291 | TRACE("%p", port); | |
292 | ||
293 | if (!port) | |
294 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
295 | if (port->transport != SP_TRANSPORT_USB) | |
296 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
297 | if (port->usb_bus < 0 || port->usb_address < 0) |
298 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 299 | |
dc422c04 UH |
300 | if (usb_bus) |
301 | *usb_bus = port->usb_bus; | |
302 | if (usb_address) | |
303 | *usb_address = port->usb_address; | |
a93fb468 AJ |
304 | |
305 | RETURN_OK(); | |
306 | } | |
307 | ||
970f279a AJ |
308 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
309 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
310 | { |
311 | TRACE("%p", port); | |
312 | ||
313 | if (!port) | |
314 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
315 | if (port->transport != SP_TRANSPORT_USB) | |
316 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
317 | if (port->usb_vid < 0 || port->usb_pid < 0) |
318 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 319 | |
dc422c04 UH |
320 | if (usb_vid) |
321 | *usb_vid = port->usb_vid; | |
322 | if (usb_pid) | |
323 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
324 | |
325 | RETURN_OK(); | |
326 | } | |
327 | ||
970f279a | 328 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
329 | { |
330 | TRACE("%p", port); | |
331 | ||
332 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
333 | return NULL; | |
334 | ||
9caa2e86 | 335 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
336 | } |
337 | ||
970f279a | 338 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
339 | { |
340 | TRACE("%p", port); | |
341 | ||
342 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
343 | return NULL; | |
344 | ||
9caa2e86 | 345 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
346 | } |
347 | ||
970f279a | 348 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
349 | { |
350 | TRACE("%p", port); | |
351 | ||
352 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
353 | return NULL; | |
354 | ||
9caa2e86 | 355 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
356 | } |
357 | ||
970f279a | 358 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
359 | { |
360 | TRACE("%p", port); | |
361 | ||
362 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
363 | || !port->bluetooth_address) | |
364 | return NULL; | |
365 | ||
9caa2e86 | 366 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
367 | } |
368 | ||
970f279a AJ |
369 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
370 | void *result_ptr) | |
3c126654 | 371 | { |
00d8c56d | 372 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
373 | |
374 | if (!port) | |
375 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
376 | if (!result_ptr) |
377 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
378 | |
379 | #ifdef _WIN32 | |
380 | HANDLE *handle_ptr = result_ptr; | |
381 | *handle_ptr = port->hdl; | |
382 | #else | |
383 | int *fd_ptr = result_ptr; | |
384 | *fd_ptr = port->fd; | |
385 | #endif | |
386 | ||
387 | RETURN_OK(); | |
388 | } | |
389 | ||
970f279a AJ |
390 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
391 | struct sp_port **copy_ptr) | |
32b5ac05 | 392 | { |
c33efc48 ML |
393 | TRACE("%p, %p", port, copy_ptr); |
394 | ||
32b5ac05 | 395 | if (!copy_ptr) |
c33efc48 | 396 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
397 | |
398 | *copy_ptr = NULL; | |
399 | ||
c33efc48 ML |
400 | if (!port) |
401 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
402 | ||
403 | if (!port->name) | |
404 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 405 | |
ea667be7 ML |
406 | DEBUG("Copying port structure"); |
407 | ||
9caa2e86 | 408 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
409 | } |
410 | ||
970f279a | 411 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 412 | { |
c33efc48 ML |
413 | TRACE("%p", port); |
414 | ||
00d8c56d | 415 | if (!port) { |
c33efc48 ML |
416 | DEBUG("Null port"); |
417 | RETURN(); | |
418 | } | |
e3b2f7a4 | 419 | |
ea667be7 ML |
420 | DEBUG("Freeing port structure"); |
421 | ||
e3b2f7a4 ML |
422 | if (port->name) |
423 | free(port->name); | |
a93fb468 AJ |
424 | if (port->description) |
425 | free(port->description); | |
426 | if (port->usb_manufacturer) | |
427 | free(port->usb_manufacturer); | |
428 | if (port->usb_product) | |
429 | free(port->usb_product); | |
430 | if (port->usb_serial) | |
431 | free(port->usb_serial); | |
432 | if (port->bluetooth_address) | |
433 | free(port->bluetooth_address); | |
434 | #ifdef _WIN32 | |
435 | if (port->usb_path) | |
436 | free(port->usb_path); | |
39df7833 ML |
437 | if (port->write_buf) |
438 | free(port->write_buf); | |
a93fb468 | 439 | #endif |
e3b2f7a4 ML |
440 | |
441 | free(port); | |
c33efc48 ML |
442 | |
443 | RETURN(); | |
e3b2f7a4 ML |
444 | } |
445 | ||
970f279a AJ |
446 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
447 | const char *portname) | |
3b63f34d ML |
448 | { |
449 | void *tmp; | |
450 | unsigned int count; | |
f92f1f0c | 451 | |
81243567 UH |
452 | for (count = 0; list[count]; count++) |
453 | ; | |
d54e9004 | 454 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
455 | goto fail; |
456 | list = tmp; | |
77f262c4 | 457 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 458 | goto fail; |
db2794ce | 459 | list[count + 1] = NULL; |
3b63f34d | 460 | return list; |
f92f1f0c | 461 | |
3b63f34d ML |
462 | fail: |
463 | sp_free_port_list(list); | |
464 | return NULL; | |
465 | } | |
466 | ||
970f279a | 467 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 468 | { |
23e7fa37 | 469 | #ifndef NO_ENUMERATION |
d54e9004 | 470 | struct sp_port **list; |
48a4076f | 471 | int ret; |
23e7fa37 | 472 | #endif |
24c1a4bb | 473 | |
c33efc48 ML |
474 | TRACE("%p", list_ptr); |
475 | ||
dec10e31 ML |
476 | if (!list_ptr) |
477 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
478 | ||
63926415 UH |
479 | *list_ptr = NULL; |
480 | ||
8d12e620 ML |
481 | #ifdef NO_ENUMERATION |
482 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
483 | #else | |
ea667be7 ML |
484 | DEBUG("Enumerating ports"); |
485 | ||
8d12e620 | 486 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 487 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
488 | |
489 | list[0] = NULL; | |
3b63f34d | 490 | |
48a4076f | 491 | ret = list_ports(&list); |
77f262c4 | 492 | |
8d12e620 | 493 | if (ret == SP_OK) { |
77f262c4 | 494 | *list_ptr = list; |
8d12e620 ML |
495 | } else { |
496 | sp_free_port_list(list); | |
77f262c4 ML |
497 | *list_ptr = NULL; |
498 | } | |
8d12e620 ML |
499 | |
500 | RETURN_CODEVAL(ret); | |
501 | #endif | |
3b63f34d ML |
502 | } |
503 | ||
970f279a | 504 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
505 | { |
506 | unsigned int i; | |
f92f1f0c | 507 | |
c33efc48 ML |
508 | TRACE("%p", list); |
509 | ||
dec10e31 ML |
510 | if (!list) { |
511 | DEBUG("Null list"); | |
512 | RETURN(); | |
513 | } | |
514 | ||
ea667be7 ML |
515 | DEBUG("Freeing port list"); |
516 | ||
3b63f34d | 517 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 518 | sp_free_port(list[i]); |
3b63f34d | 519 | free(list); |
c33efc48 ML |
520 | |
521 | RETURN(); | |
3b63f34d ML |
522 | } |
523 | ||
c33efc48 | 524 | #define CHECK_PORT() do { \ |
dc422c04 | 525 | if (!port) \ |
c33efc48 | 526 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 527 | if (!port->name) \ |
dec10e31 ML |
528 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
529 | } while (0) | |
530 | #ifdef _WIN32 | |
531 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 532 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 533 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 534 | } while (0) |
74510d4b | 535 | #else |
dec10e31 | 536 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 537 | if (port->fd < 0) \ |
8062087a | 538 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 539 | } while (0) |
74510d4b | 540 | #endif |
dec10e31 ML |
541 | #define CHECK_OPEN_PORT() do { \ |
542 | CHECK_PORT(); \ | |
543 | CHECK_PORT_HANDLE(); \ | |
544 | } while (0) | |
74510d4b | 545 | |
47fcf8ec ML |
546 | #ifdef WIN32 |
547 | /** To be called after port receive buffer is emptied. */ | |
548 | static enum sp_return restart_wait(struct sp_port *port) | |
549 | { | |
550 | DWORD wait_result; | |
551 | ||
552 | if (port->wait_running) { | |
553 | /* Check status of running wait operation. */ | |
554 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
555 | &wait_result, FALSE)) { | |
556 | DEBUG("Previous wait completed"); | |
557 | port->wait_running = FALSE; | |
558 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
559 | DEBUG("Previous wait still running"); | |
560 | RETURN_OK(); | |
561 | } else { | |
562 | RETURN_FAIL("GetOverlappedResult() failed"); | |
563 | } | |
564 | } | |
565 | ||
566 | if (!port->wait_running) { | |
567 | /* Start new wait operation. */ | |
568 | if (WaitCommEvent(port->hdl, &port->events, | |
569 | &port->wait_ovl)) { | |
570 | DEBUG("New wait returned, events already pending"); | |
571 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
572 | DEBUG("New wait running in background"); | |
573 | port->wait_running = TRUE; | |
574 | } else { | |
575 | RETURN_FAIL("WaitCommEvent() failed"); | |
576 | } | |
577 | } | |
578 | ||
579 | RETURN_OK(); | |
580 | } | |
581 | #endif | |
582 | ||
970f279a | 583 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 584 | { |
bccc7c9f ML |
585 | struct port_data data; |
586 | struct sp_port_config config; | |
587 | enum sp_return ret; | |
588 | ||
00d8c56d | 589 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 590 | |
dec10e31 ML |
591 | CHECK_PORT(); |
592 | ||
276ef1b9 | 593 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 594 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 595 | |
7890cef6 | 596 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 597 | |
74510d4b | 598 | #ifdef _WIN32 |
537942c9 | 599 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 600 | char *escaped_port_name; |
537942c9 | 601 | COMSTAT status; |
99945a1f ML |
602 | |
603 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 604 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 605 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
606 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
607 | ||
74510d4b | 608 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 609 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
610 | if (flags & SP_MODE_READ) |
611 | desired_access |= GENERIC_READ; | |
612 | if (flags & SP_MODE_WRITE) | |
74510d4b | 613 | desired_access |= GENERIC_WRITE; |
74510d4b | 614 | |
99945a1f | 615 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 616 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
617 | |
618 | free(escaped_port_name); | |
619 | ||
74510d4b | 620 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 621 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
622 | |
623 | /* All timeouts initially disabled. */ | |
624 | port->timeouts.ReadIntervalTimeout = 0; | |
625 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
626 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
627 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
628 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 629 | |
e3dcf906 | 630 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
631 | sp_close(port); |
632 | RETURN_FAIL("SetCommTimeouts() failed"); | |
633 | } | |
e3dcf906 ML |
634 | |
635 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
636 | #define INIT_OVERLAPPED(ovl) do { \ |
637 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
638 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
639 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
640 | == INVALID_HANDLE_VALUE) { \ | |
641 | sp_close(port); \ | |
642 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
643 | } \ | |
644 | } while (0) | |
645 | ||
646 | INIT_OVERLAPPED(read_ovl); | |
647 | INIT_OVERLAPPED(write_ovl); | |
648 | INIT_OVERLAPPED(wait_ovl); | |
649 | ||
650 | /* Set event mask for RX and error events. */ | |
651 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 652 | sp_close(port); |
6f1186aa | 653 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 654 | } |
6f1186aa | 655 | |
e3dcf906 | 656 | port->writing = FALSE; |
47fcf8ec | 657 | port->wait_running = FALSE; |
e3dcf906 | 658 | |
47fcf8ec ML |
659 | ret = restart_wait(port); |
660 | ||
661 | if (ret < 0) { | |
662 | sp_close(port); | |
663 | RETURN_CODEVAL(ret); | |
664 | } | |
74510d4b | 665 | #else |
fa106ef1 | 666 | int flags_local = O_NONBLOCK | O_NOCTTY | O_CLOEXEC; |
f92f1f0c | 667 | |
74510d4b | 668 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 669 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 670 | flags_local |= O_RDWR; |
a036341b | 671 | else if (flags & SP_MODE_READ) |
74510d4b | 672 | flags_local |= O_RDONLY; |
a036341b ML |
673 | else if (flags & SP_MODE_WRITE) |
674 | flags_local |= O_WRONLY; | |
74510d4b ML |
675 | |
676 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 677 | RETURN_FAIL("open() failed"); |
bccc7c9f | 678 | #endif |
9cb98459 | 679 | |
e33ab9aa ML |
680 | ret = get_config(port, &data, &config); |
681 | ||
eac329d2 | 682 | if (ret < 0) { |
e33ab9aa | 683 | sp_close(port); |
c33efc48 | 684 | RETURN_CODEVAL(ret); |
e33ab9aa | 685 | } |
9cb98459 | 686 | |
bccc7c9f ML |
687 | /* Set sane port settings. */ |
688 | #ifdef _WIN32 | |
689 | data.dcb.fBinary = TRUE; | |
690 | data.dcb.fDsrSensitivity = FALSE; | |
691 | data.dcb.fErrorChar = FALSE; | |
692 | data.dcb.fNull = FALSE; | |
34442106 | 693 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 694 | #else |
b251be4b | 695 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
696 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
697 | #ifdef IUCLC | |
698 | data.term.c_iflag &= ~IUCLC; | |
699 | #endif | |
700 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
701 | #ifdef OLCUC | |
702 | data.term.c_oflag &= ~OLCUC; | |
703 | #endif | |
704 | #ifdef NLDLY | |
705 | data.term.c_oflag &= ~NLDLY; | |
706 | #endif | |
707 | #ifdef CRDLY | |
708 | data.term.c_oflag &= ~CRDLY; | |
709 | #endif | |
710 | #ifdef TABDLY | |
711 | data.term.c_oflag &= ~TABDLY; | |
712 | #endif | |
713 | #ifdef BSDLY | |
714 | data.term.c_oflag &= ~BSDLY; | |
715 | #endif | |
716 | #ifdef VTDLY | |
717 | data.term.c_oflag &= ~VTDLY; | |
718 | #endif | |
719 | #ifdef FFDLY | |
720 | data.term.c_oflag &= ~FFDLY; | |
721 | #endif | |
b251be4b | 722 | #ifdef OFILL |
9cb98459 ML |
723 | data.term.c_oflag &= ~OFILL; |
724 | #endif | |
c3e05092 | 725 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 726 | data.term.c_cc[VMIN] = 0; |
b251be4b | 727 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 728 | |
b251be4b ML |
729 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
730 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 731 | #endif |
9cb98459 | 732 | |
537942c9 | 733 | #ifdef _WIN32 |
1a2a1544 UH |
734 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
735 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
736 | #endif |
737 | ||
e33ab9aa ML |
738 | ret = set_config(port, &data, &config); |
739 | ||
eac329d2 | 740 | if (ret < 0) { |
e33ab9aa | 741 | sp_close(port); |
c33efc48 | 742 | RETURN_CODEVAL(ret); |
e33ab9aa | 743 | } |
74510d4b | 744 | |
c33efc48 | 745 | RETURN_OK(); |
74510d4b ML |
746 | } |
747 | ||
970f279a | 748 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 749 | { |
c33efc48 ML |
750 | TRACE("%p", port); |
751 | ||
dec10e31 | 752 | CHECK_OPEN_PORT(); |
74510d4b | 753 | |
7890cef6 | 754 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 755 | |
74510d4b ML |
756 | #ifdef _WIN32 |
757 | /* Returns non-zero upon success, 0 upon failure. */ | |
758 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 759 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 760 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
761 | |
762 | /* Close event handles for overlapped structures. */ | |
763 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
764 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
765 | CloseHandle(port->ovl.hEvent) == 0) \ | |
766 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
767 | } while (0) | |
768 | CLOSE_OVERLAPPED(read_ovl); | |
769 | CLOSE_OVERLAPPED(write_ovl); | |
770 | CLOSE_OVERLAPPED(wait_ovl); | |
771 | ||
39df7833 ML |
772 | if (port->write_buf) { |
773 | free(port->write_buf); | |
774 | port->write_buf = NULL; | |
775 | } | |
74510d4b ML |
776 | #else |
777 | /* Returns 0 upon success, -1 upon failure. */ | |
778 | if (close(port->fd) == -1) | |
c33efc48 | 779 | RETURN_FAIL("close() failed"); |
8f471c66 | 780 | port->fd = -1; |
74510d4b ML |
781 | #endif |
782 | ||
c33efc48 | 783 | RETURN_OK(); |
74510d4b ML |
784 | } |
785 | ||
970f279a | 786 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 787 | { |
00d8c56d | 788 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 789 | |
dec10e31 ML |
790 | CHECK_OPEN_PORT(); |
791 | ||
792 | if (buffers > SP_BUF_BOTH) | |
793 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 794 | |
0ba3e49b | 795 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 796 | |
7890cef6 ML |
797 | DEBUG_FMT("Flushing %s buffers on port %s", |
798 | buffer_names[buffers], port->name); | |
ea667be7 | 799 | |
74510d4b | 800 | #ifdef _WIN32 |
fd8fd11a ML |
801 | DWORD flags = 0; |
802 | if (buffers & SP_BUF_INPUT) | |
803 | flags |= PURGE_RXCLEAR; | |
804 | if (buffers & SP_BUF_OUTPUT) | |
805 | flags |= PURGE_TXCLEAR; | |
806 | ||
74510d4b | 807 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 808 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 809 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
810 | |
811 | if (buffers & SP_BUF_INPUT) | |
812 | TRY(restart_wait(port)); | |
74510d4b | 813 | #else |
fd8fd11a | 814 | int flags = 0; |
ad749855 | 815 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 816 | flags = TCIOFLUSH; |
ad749855 | 817 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 818 | flags = TCIFLUSH; |
ad749855 | 819 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
820 | flags = TCOFLUSH; |
821 | ||
74510d4b | 822 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 823 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 824 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 825 | #endif |
c33efc48 | 826 | RETURN_OK(); |
74510d4b ML |
827 | } |
828 | ||
970f279a | 829 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 830 | { |
c33efc48 ML |
831 | TRACE("%p", port); |
832 | ||
dec10e31 | 833 | CHECK_OPEN_PORT(); |
69a3739c | 834 | |
7890cef6 | 835 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 836 | |
69a3739c ML |
837 | #ifdef _WIN32 |
838 | /* Returns non-zero upon success, 0 upon failure. */ | |
839 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 840 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 841 | RETURN_OK(); |
69a3739c | 842 | #else |
2c827b21 ML |
843 | int result; |
844 | while (1) { | |
abd31fd9 ML |
845 | #if defined(__ANDROID__) && (__ANDROID_API__ < 21) |
846 | /* Android only has tcdrain from platform 21 onwards. | |
847 | * On previous API versions, use the ioctl directly. */ | |
33fd8804 ML |
848 | int arg = 1; |
849 | result = ioctl(port->fd, TCSBRK, &arg); | |
850 | #else | |
2c827b21 | 851 | result = tcdrain(port->fd); |
33fd8804 | 852 | #endif |
2c827b21 ML |
853 | if (result < 0) { |
854 | if (errno == EINTR) { | |
855 | DEBUG("tcdrain() was interrupted"); | |
856 | continue; | |
857 | } else { | |
858 | RETURN_FAIL("tcdrain() failed"); | |
859 | } | |
860 | } else { | |
861 | RETURN_OK(); | |
862 | } | |
863 | } | |
69a3739c | 864 | #endif |
69a3739c ML |
865 | } |
866 | ||
62ed9f80 ML |
867 | #ifdef _WIN32 |
868 | static enum sp_return await_write_completion(struct sp_port *port) | |
869 | { | |
870 | TRACE("%p", port); | |
871 | DWORD bytes_written; | |
872 | BOOL result; | |
873 | ||
874 | /* Wait for previous non-blocking write to complete, if any. */ | |
875 | if (port->writing) { | |
876 | DEBUG("Waiting for previous write to complete"); | |
877 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
878 | port->writing = 0; | |
879 | if (!result) | |
880 | RETURN_FAIL("Previous write failed to complete"); | |
881 | DEBUG("Previous write completed"); | |
882 | } | |
883 | ||
884 | RETURN_OK(); | |
885 | } | |
886 | #endif | |
887 | ||
970f279a | 888 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 889 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 890 | { |
1b91c6ea | 891 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
892 | |
893 | CHECK_OPEN_PORT(); | |
894 | ||
895 | if (!buf) | |
896 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
897 | ||
1b91c6ea | 898 | if (timeout_ms) |
7890cef6 | 899 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 900 | count, port->name, timeout_ms); |
e3dcf906 | 901 | else |
7890cef6 ML |
902 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
903 | count, port->name); | |
e3dcf906 ML |
904 | |
905 | if (count == 0) | |
9caa2e86 | 906 | RETURN_INT(0); |
e3dcf906 ML |
907 | |
908 | #ifdef _WIN32 | |
909 | DWORD bytes_written = 0; | |
e3dcf906 | 910 | |
62ed9f80 | 911 | TRY(await_write_completion(port)); |
e3dcf906 ML |
912 | |
913 | /* Set timeout. */ | |
27a58c05 ML |
914 | if (port->timeouts.WriteTotalTimeoutConstant != timeout_ms) { |
915 | port->timeouts.WriteTotalTimeoutConstant = timeout_ms; | |
916 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
917 | RETURN_FAIL("SetCommTimeouts() failed"); | |
918 | } | |
e3dcf906 | 919 | |
b457865b ML |
920 | /* Reduce count if it exceeds the WriteFile limit. */ |
921 | if (count > WRITEFILE_MAX_SIZE) | |
922 | count = WRITEFILE_MAX_SIZE; | |
923 | ||
e3dcf906 | 924 | /* Start write. */ |
bbe566fe | 925 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl)) { |
e3dcf906 | 926 | DEBUG("Write completed immediately"); |
9caa2e86 | 927 | RETURN_INT(count); |
bbe566fe ML |
928 | } else if (GetLastError() == ERROR_IO_PENDING) { |
929 | DEBUG("Waiting for write to complete"); | |
aee7d691 UH |
930 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) { |
931 | if (GetLastError() == ERROR_SEM_TIMEOUT) { | |
932 | DEBUG("Write timed out"); | |
933 | RETURN_INT(0); | |
934 | } else { | |
935 | RETURN_FAIL("GetOverlappedResult() failed"); | |
936 | } | |
937 | } | |
bbe566fe ML |
938 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
939 | RETURN_INT(bytes_written); | |
940 | } else { | |
941 | RETURN_FAIL("WriteFile() failed"); | |
e3dcf906 ML |
942 | } |
943 | #else | |
944 | size_t bytes_written = 0; | |
945 | unsigned char *ptr = (unsigned char *) buf; | |
32dbe2d2 | 946 | struct timeout timeout; |
76222ee5 | 947 | int started = 0; |
e3dcf906 ML |
948 | fd_set fds; |
949 | int result; | |
950 | ||
32dbe2d2 | 951 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 952 | |
772c5861 ML |
953 | FD_ZERO(&fds); |
954 | FD_SET(port->fd, &fds); | |
955 | ||
e3dcf906 | 956 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 957 | while (bytes_written < count) { |
76222ee5 ML |
958 | /* |
959 | * Check timeout only if we have run select() at least once, | |
960 | * to avoid any issues if a short timeout is reached before | |
961 | * select() is even run. | |
962 | */ | |
32dbe2d2 ML |
963 | if (started && timeout_check(&timeout)) |
964 | break; | |
965 | ||
966 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_timeval(&timeout)); | |
76222ee5 | 967 | started = 1; |
63a17c64 ML |
968 | if (result < 0) { |
969 | if (errno == EINTR) { | |
970 | DEBUG("select() call was interrupted, repeating"); | |
971 | continue; | |
972 | } else { | |
973 | RETURN_FAIL("select() failed"); | |
974 | } | |
975 | } else if (result == 0) { | |
c3cee38c ML |
976 | /* Timeout has expired. */ |
977 | break; | |
e3dcf906 ML |
978 | } |
979 | ||
980 | /* Do write. */ | |
981 | result = write(port->fd, ptr, count - bytes_written); | |
982 | ||
983 | if (result < 0) { | |
984 | if (errno == EAGAIN) | |
985 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
986 | continue; | |
987 | else | |
988 | /* This is an actual failure. */ | |
989 | RETURN_FAIL("write() failed"); | |
990 | } | |
991 | ||
992 | bytes_written += result; | |
993 | ptr += result; | |
994 | } | |
995 | ||
c3cee38c ML |
996 | if (bytes_written < count) |
997 | DEBUG("Write timed out"); | |
998 | ||
9caa2e86 | 999 | RETURN_INT(bytes_written); |
e3dcf906 ML |
1000 | #endif |
1001 | } | |
1002 | ||
970f279a AJ |
1003 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
1004 | const void *buf, size_t count) | |
74510d4b | 1005 | { |
c33efc48 ML |
1006 | TRACE("%p, %p, %d", port, buf, count); |
1007 | ||
dec10e31 | 1008 | CHECK_OPEN_PORT(); |
74510d4b ML |
1009 | |
1010 | if (!buf) | |
c33efc48 | 1011 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1012 | |
7890cef6 | 1013 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 1014 | |
a3cb91f5 | 1015 | if (count == 0) |
9caa2e86 | 1016 | RETURN_INT(0); |
a3cb91f5 | 1017 | |
74510d4b | 1018 | #ifdef _WIN32 |
39df7833 | 1019 | DWORD buf_bytes; |
f92f1f0c | 1020 | |
e3dcf906 ML |
1021 | /* Check whether previous write is complete. */ |
1022 | if (port->writing) { | |
1023 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
1024 | DEBUG("Previous write completed"); | |
1025 | port->writing = 0; | |
1026 | } else { | |
1027 | DEBUG("Previous write not complete"); | |
1028 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 1029 | RETURN_INT(0); |
a3cb91f5 | 1030 | } |
e3dcf906 | 1031 | } |
a3cb91f5 | 1032 | |
e3dcf906 | 1033 | /* Set timeout. */ |
27a58c05 ML |
1034 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
1035 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
1036 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1037 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1038 | } | |
e3dcf906 | 1039 | |
b457865b ML |
1040 | /* Reduce count if it exceeds the WriteFile limit. */ |
1041 | if (count > WRITEFILE_MAX_SIZE) | |
1042 | count = WRITEFILE_MAX_SIZE; | |
1043 | ||
39df7833 ML |
1044 | /* Copy data to our write buffer. */ |
1045 | buf_bytes = min(port->write_buf_size, count); | |
1046 | memcpy(port->write_buf, buf, buf_bytes); | |
1047 | ||
1048 | /* Start asynchronous write. */ | |
1049 | if (WriteFile(port->hdl, port->write_buf, buf_bytes, NULL, &port->write_ovl) == 0) { | |
1050 | if (GetLastError() == ERROR_IO_PENDING) { | |
1051 | if ((port->writing = !HasOverlappedIoCompleted(&port->write_ovl))) | |
1052 | DEBUG("Asynchronous write completed immediately"); | |
1053 | else | |
1054 | DEBUG("Asynchronous write running"); | |
e3dcf906 | 1055 | } else { |
39df7833 ML |
1056 | /* Actual failure of some kind. */ |
1057 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 ML |
1058 | } |
1059 | } | |
1060 | ||
9af8cff3 | 1061 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1062 | |
39df7833 | 1063 | RETURN_INT(buf_bytes); |
74510d4b ML |
1064 | #else |
1065 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1066 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1067 | |
55ab7e0b ML |
1068 | if (written < 0) { |
1069 | if (errno == EAGAIN) | |
1070 | // Buffer is full, no bytes written. | |
1071 | RETURN_INT(0); | |
1072 | else | |
1073 | RETURN_FAIL("write() failed"); | |
1074 | } else { | |
9caa2e86 | 1075 | RETURN_INT(written); |
55ab7e0b | 1076 | } |
74510d4b ML |
1077 | #endif |
1078 | } | |
1079 | ||
94a314a8 ML |
1080 | #ifdef _WIN32 |
1081 | /* Restart wait operation if buffer was emptied. */ | |
1082 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
1083 | { | |
8ebfaf89 ML |
1084 | DWORD errors; |
1085 | COMSTAT comstat; | |
94a314a8 | 1086 | |
21ae5ce1 ML |
1087 | if (bytes_read == 0) |
1088 | RETURN_OK(); | |
1089 | ||
8ebfaf89 ML |
1090 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
1091 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 1092 | |
8ebfaf89 | 1093 | if (comstat.cbInQue == 0) |
94a314a8 ML |
1094 | TRY(restart_wait(port)); |
1095 | ||
1096 | RETURN_OK(); | |
1097 | } | |
1098 | #endif | |
1099 | ||
970f279a | 1100 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 1101 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 1102 | { |
1b91c6ea | 1103 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
1104 | |
1105 | CHECK_OPEN_PORT(); | |
1106 | ||
1107 | if (!buf) | |
1108 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1109 | ||
1b91c6ea | 1110 | if (timeout_ms) |
7890cef6 | 1111 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 1112 | count, port->name, timeout_ms); |
e3dcf906 | 1113 | else |
7890cef6 ML |
1114 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
1115 | count, port->name); | |
e3dcf906 ML |
1116 | |
1117 | if (count == 0) | |
9caa2e86 | 1118 | RETURN_INT(0); |
e3dcf906 ML |
1119 | |
1120 | #ifdef _WIN32 | |
1121 | DWORD bytes_read = 0; | |
1122 | ||
1123 | /* Set timeout. */ | |
27a58c05 | 1124 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 1125 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1126 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
1127 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 1128 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1129 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
1130 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1131 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1132 | } | |
e3dcf906 ML |
1133 | |
1134 | /* Start read. */ | |
bbe566fe | 1135 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { |
e3dcf906 | 1136 | DEBUG("Read completed immediately"); |
6f1186aa | 1137 | bytes_read = count; |
bbe566fe ML |
1138 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1139 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
1140 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1141 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
1142 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
1143 | } else { | |
1144 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
1145 | } |
1146 | ||
94a314a8 | 1147 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1148 | |
9caa2e86 | 1149 | RETURN_INT(bytes_read); |
6f1186aa | 1150 | |
e3dcf906 ML |
1151 | #else |
1152 | size_t bytes_read = 0; | |
9a7945af | 1153 | unsigned char *ptr = (unsigned char *) buf; |
32dbe2d2 | 1154 | struct timeout timeout; |
76222ee5 | 1155 | int started = 0; |
e3dcf906 ML |
1156 | fd_set fds; |
1157 | int result; | |
1158 | ||
32dbe2d2 | 1159 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 1160 | |
772c5861 ML |
1161 | FD_ZERO(&fds); |
1162 | FD_SET(port->fd, &fds); | |
1163 | ||
e3dcf906 | 1164 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1165 | while (bytes_read < count) { |
76222ee5 ML |
1166 | /* |
1167 | * Check timeout only if we have run select() at least once, | |
1168 | * to avoid any issues if a short timeout is reached before | |
1169 | * select() is even run. | |
1170 | */ | |
32dbe2d2 ML |
1171 | if (started && timeout_check(&timeout)) |
1172 | /* Timeout has expired. */ | |
1173 | break; | |
1174 | ||
1175 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
76222ee5 | 1176 | started = 1; |
63a17c64 ML |
1177 | if (result < 0) { |
1178 | if (errno == EINTR) { | |
1179 | DEBUG("select() call was interrupted, repeating"); | |
1180 | continue; | |
1181 | } else { | |
1182 | RETURN_FAIL("select() failed"); | |
1183 | } | |
1184 | } else if (result == 0) { | |
c3cee38c ML |
1185 | /* Timeout has expired. */ |
1186 | break; | |
e3dcf906 ML |
1187 | } |
1188 | ||
1189 | /* Do read. */ | |
1190 | result = read(port->fd, ptr, count - bytes_read); | |
1191 | ||
1192 | if (result < 0) { | |
1193 | if (errno == EAGAIN) | |
76222ee5 ML |
1194 | /* |
1195 | * This shouldn't happen because we did a | |
1196 | * select() first, but handle anyway. | |
1197 | */ | |
e3dcf906 ML |
1198 | continue; |
1199 | else | |
1200 | /* This is an actual failure. */ | |
1201 | RETURN_FAIL("read() failed"); | |
1202 | } | |
1203 | ||
1204 | bytes_read += result; | |
1205 | ptr += result; | |
1206 | } | |
1207 | ||
c3cee38c ML |
1208 | if (bytes_read < count) |
1209 | DEBUG("Read timed out"); | |
1210 | ||
9caa2e86 | 1211 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1212 | #endif |
1213 | } | |
1214 | ||
e5c2630e ML |
1215 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1216 | size_t count, unsigned int timeout_ms) | |
1217 | { | |
1218 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1219 | ||
1220 | CHECK_OPEN_PORT(); | |
1221 | ||
1222 | if (!buf) | |
1223 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1224 | ||
1225 | if (count == 0) | |
1226 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1227 | ||
1228 | if (timeout_ms) | |
1229 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1230 | count, port->name, timeout_ms); | |
1231 | else | |
1232 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1233 | count, port->name); | |
1234 | ||
1235 | #ifdef _WIN32 | |
1236 | DWORD bytes_read = 0; | |
1237 | ||
1238 | /* If timeout_ms == 0, set maximum timeout. */ | |
1239 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1240 | ||
1241 | /* Set timeout. */ | |
1242 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1243 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1244 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1245 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1246 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1247 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1248 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1249 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1250 | } | |
1251 | ||
1252 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1253 | while (bytes_read == 0) { | |
1254 | /* Start read. */ | |
888fb45d | 1255 | if (ReadFile(port->hdl, buf, count, &bytes_read, &port->read_ovl)) { |
e5c2630e | 1256 | DEBUG("Read completed immediately"); |
e5c2630e ML |
1257 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1258 | DEBUG("Waiting for read to complete"); | |
1259 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1260 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1261 | if (bytes_read > 0) { | |
1262 | DEBUG("Read completed"); | |
1263 | } else if (timeout_ms > 0) { | |
1264 | DEBUG("Read timed out"); | |
1265 | break; | |
1266 | } else { | |
1267 | DEBUG("Restarting read"); | |
1268 | } | |
1269 | } else { | |
1270 | RETURN_FAIL("ReadFile() failed"); | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1275 | ||
1276 | RETURN_INT(bytes_read); | |
1277 | ||
1278 | #else | |
1279 | size_t bytes_read = 0; | |
32dbe2d2 | 1280 | struct timeout timeout; |
e5c2630e ML |
1281 | int started = 0; |
1282 | fd_set fds; | |
1283 | int result; | |
1284 | ||
32dbe2d2 | 1285 | timeout_start(&timeout, timeout_ms); |
e5c2630e ML |
1286 | |
1287 | FD_ZERO(&fds); | |
1288 | FD_SET(port->fd, &fds); | |
1289 | ||
1290 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1291 | while (bytes_read == 0) { | |
1292 | /* | |
1293 | * Check timeout only if we have run select() at least once, | |
1294 | * to avoid any issues if a short timeout is reached before | |
1295 | * select() is even run. | |
1296 | */ | |
32dbe2d2 ML |
1297 | if (started && timeout_check(&timeout)) |
1298 | /* Timeout has expired. */ | |
1299 | break; | |
1300 | ||
1301 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
e5c2630e ML |
1302 | started = 1; |
1303 | if (result < 0) { | |
1304 | if (errno == EINTR) { | |
1305 | DEBUG("select() call was interrupted, repeating"); | |
1306 | continue; | |
1307 | } else { | |
1308 | RETURN_FAIL("select() failed"); | |
1309 | } | |
1310 | } else if (result == 0) { | |
1311 | /* Timeout has expired. */ | |
1312 | break; | |
1313 | } | |
1314 | ||
1315 | /* Do read. */ | |
1316 | result = read(port->fd, buf, count); | |
1317 | ||
1318 | if (result < 0) { | |
1319 | if (errno == EAGAIN) | |
1320 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1321 | continue; | |
1322 | else | |
1323 | /* This is an actual failure. */ | |
1324 | RETURN_FAIL("read() failed"); | |
1325 | } | |
1326 | ||
1327 | bytes_read = result; | |
1328 | } | |
1329 | ||
1330 | if (bytes_read == 0) | |
1331 | DEBUG("Read timed out"); | |
1332 | ||
1333 | RETURN_INT(bytes_read); | |
1334 | #endif | |
1335 | } | |
1336 | ||
970f279a AJ |
1337 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1338 | size_t count) | |
74510d4b | 1339 | { |
c33efc48 ML |
1340 | TRACE("%p, %p, %d", port, buf, count); |
1341 | ||
dec10e31 | 1342 | CHECK_OPEN_PORT(); |
74510d4b ML |
1343 | |
1344 | if (!buf) | |
c33efc48 | 1345 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1346 | |
7890cef6 | 1347 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1348 | |
74510d4b | 1349 | #ifdef _WIN32 |
e3dcf906 | 1350 | DWORD bytes_read; |
f92f1f0c | 1351 | |
e3dcf906 | 1352 | /* Set timeout. */ |
27a58c05 | 1353 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1354 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1355 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1356 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1357 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1358 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1359 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1360 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1361 | } | |
e3dcf906 ML |
1362 | |
1363 | /* Do read. */ | |
1364 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
ae2c5825 ML |
1365 | if (GetLastError() != ERROR_IO_PENDING) |
1366 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1367 | |
1368 | /* Get number of bytes read. */ | |
ae2c5825 | 1369 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1370 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1371 | |
94a314a8 | 1372 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1373 | |
9caa2e86 | 1374 | RETURN_INT(bytes_read); |
74510d4b ML |
1375 | #else |
1376 | ssize_t bytes_read; | |
f92f1f0c | 1377 | |
74510d4b | 1378 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1379 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1380 | if (errno == EAGAIN) |
1381 | /* No bytes available. */ | |
33d5ff47 ML |
1382 | bytes_read = 0; |
1383 | else | |
1384 | /* This is an actual failure. */ | |
1385 | RETURN_FAIL("read() failed"); | |
1386 | } | |
9caa2e86 | 1387 | RETURN_INT(bytes_read); |
74510d4b ML |
1388 | #endif |
1389 | } | |
1390 | ||
970f279a | 1391 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1392 | { |
1393 | TRACE("%p", port); | |
1394 | ||
1395 | CHECK_OPEN_PORT(); | |
1396 | ||
7890cef6 | 1397 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1398 | |
1399 | #ifdef _WIN32 | |
1400 | DWORD errors; | |
1401 | COMSTAT comstat; | |
1402 | ||
1403 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1404 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1405 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1406 | #else |
1407 | int bytes_waiting; | |
1408 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1409 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1410 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1411 | #endif |
1412 | } | |
1413 | ||
970f279a | 1414 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1415 | { |
1416 | TRACE("%p", port); | |
1417 | ||
1418 | CHECK_OPEN_PORT(); | |
1419 | ||
7890cef6 | 1420 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1421 | |
1422 | #ifdef _WIN32 | |
1423 | DWORD errors; | |
1424 | COMSTAT comstat; | |
1425 | ||
1426 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1427 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1428 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1429 | #else |
1430 | int bytes_waiting; | |
1431 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1432 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1433 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1434 | #endif |
1435 | } | |
1436 | ||
970f279a | 1437 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1438 | { |
1439 | struct sp_event_set *result; | |
1440 | ||
1441 | TRACE("%p", result_ptr); | |
1442 | ||
1443 | if (!result_ptr) | |
1444 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1445 | ||
1446 | *result_ptr = NULL; | |
1447 | ||
1448 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1449 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1450 | ||
1451 | memset(result, 0, sizeof(struct sp_event_set)); | |
1452 | ||
1453 | *result_ptr = result; | |
1454 | ||
1455 | RETURN_OK(); | |
1456 | } | |
1457 | ||
1458 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1459 | event_handle handle, enum sp_event mask) | |
1460 | { | |
1461 | void *new_handles; | |
1462 | enum sp_event *new_masks; | |
1463 | ||
1464 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1465 | ||
1466 | if (!(new_handles = realloc(event_set->handles, | |
1467 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1468 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1469 | |
ac323d80 UH |
1470 | event_set->handles = new_handles; |
1471 | ||
6f1186aa | 1472 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1473 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1474 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1475 | |
6f1186aa ML |
1476 | event_set->masks = new_masks; |
1477 | ||
1478 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1479 | event_set->masks[event_set->count] = mask; | |
1480 | ||
1481 | event_set->count++; | |
1482 | ||
1483 | RETURN_OK(); | |
1484 | } | |
1485 | ||
970f279a | 1486 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1487 | const struct sp_port *port, enum sp_event mask) |
1488 | { | |
1489 | TRACE("%p, %p, %d", event_set, port, mask); | |
1490 | ||
1491 | if (!event_set) | |
1492 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1493 | ||
1494 | if (!port) | |
1495 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1496 | ||
1497 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1498 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1499 | ||
1500 | if (!mask) | |
1501 | RETURN_OK(); | |
1502 | ||
1503 | #ifdef _WIN32 | |
1504 | enum sp_event handle_mask; | |
1505 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1506 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1507 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1508 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1509 | #else | |
1510 | TRY(add_handle(event_set, port->fd, mask)); | |
1511 | #endif | |
1512 | ||
1513 | RETURN_OK(); | |
1514 | } | |
1515 | ||
970f279a | 1516 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1517 | { |
1518 | TRACE("%p", event_set); | |
1519 | ||
1520 | if (!event_set) { | |
1521 | DEBUG("Null event set"); | |
1522 | RETURN(); | |
1523 | } | |
1524 | ||
1525 | DEBUG("Freeing event set"); | |
1526 | ||
1527 | if (event_set->handles) | |
1528 | free(event_set->handles); | |
1529 | if (event_set->masks) | |
1530 | free(event_set->masks); | |
1531 | ||
1532 | free(event_set); | |
1533 | ||
1534 | RETURN(); | |
1535 | } | |
1536 | ||
970f279a | 1537 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1538 | unsigned int timeout_ms) |
6f1186aa | 1539 | { |
1b91c6ea | 1540 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1541 | |
1542 | if (!event_set) | |
1543 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1544 | ||
1545 | #ifdef _WIN32 | |
1546 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1547 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1548 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1549 | ||
1550 | RETURN_OK(); | |
1551 | #else | |
32dbe2d2 ML |
1552 | struct timeout timeout; |
1553 | int started = 0, result; | |
6f1186aa ML |
1554 | struct pollfd *pollfds; |
1555 | unsigned int i; | |
1556 | ||
1557 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1558 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1559 | ||
1560 | for (i = 0; i < event_set->count; i++) { | |
81243567 | 1561 | pollfds[i].fd = ((int *)event_set->handles)[i]; |
6f1186aa ML |
1562 | pollfds[i].events = 0; |
1563 | pollfds[i].revents = 0; | |
1564 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1565 | pollfds[i].events |= POLLIN; | |
1566 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1567 | pollfds[i].events |= POLLOUT; | |
1568 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1569 | pollfds[i].events |= POLLERR; | |
1570 | } | |
1571 | ||
32dbe2d2 | 1572 | timeout_start(&timeout, timeout_ms); |
6f1186aa ML |
1573 | |
1574 | /* Loop until an event occurs. */ | |
dc422c04 | 1575 | while (1) { |
76222ee5 ML |
1576 | /* |
1577 | * Check timeout only if we have run poll() at least once, | |
1578 | * to avoid any issues if a short timeout is reached before | |
1579 | * poll() is even run. | |
1580 | */ | |
32dbe2d2 ML |
1581 | if (started && timeout_check(&timeout)) { |
1582 | DEBUG("Wait timed out"); | |
1583 | break; | |
6f1186aa ML |
1584 | } |
1585 | ||
32dbe2d2 | 1586 | result = poll(pollfds, event_set->count, timeout_remaining_ms(&timeout)); |
76222ee5 | 1587 | started = 1; |
6f1186aa ML |
1588 | |
1589 | if (result < 0) { | |
1590 | if (errno == EINTR) { | |
1591 | DEBUG("poll() call was interrupted, repeating"); | |
1592 | continue; | |
1593 | } else { | |
1594 | free(pollfds); | |
1595 | RETURN_FAIL("poll() failed"); | |
1596 | } | |
1597 | } else if (result == 0) { | |
1598 | DEBUG("poll() timed out"); | |
32dbe2d2 | 1599 | if (!timeout.overflow) |
127d8d0c | 1600 | break; |
6f1186aa ML |
1601 | } else { |
1602 | DEBUG("poll() completed"); | |
1603 | break; | |
1604 | } | |
1605 | } | |
1606 | ||
1607 | free(pollfds); | |
1608 | RETURN_OK(); | |
1609 | #endif | |
1610 | } | |
1611 | ||
5cea279a | 1612 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1613 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1614 | { | |
1615 | void *data; | |
1616 | ||
c33efc48 ML |
1617 | TRACE("%d, %p", fd, baudrate); |
1618 | ||
ea667be7 ML |
1619 | DEBUG("Getting baud rate"); |
1620 | ||
7a6d2196 | 1621 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1622 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1623 | |
8d43110a ML |
1624 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1625 | free(data); | |
dc422c04 | 1626 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1627 | } |
7a6d2196 ML |
1628 | |
1629 | *baudrate = get_termios_speed(data); | |
1630 | ||
8d43110a ML |
1631 | free(data); |
1632 | ||
c33efc48 | 1633 | RETURN_OK(); |
7a6d2196 ML |
1634 | } |
1635 | ||
1636 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1637 | { | |
1638 | void *data; | |
1639 | ||
c33efc48 ML |
1640 | TRACE("%d, %d", fd, baudrate); |
1641 | ||
ea667be7 ML |
1642 | DEBUG("Getting baud rate"); |
1643 | ||
7a6d2196 | 1644 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1645 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1646 | |
8d43110a ML |
1647 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1648 | free(data); | |
dc422c04 | 1649 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1650 | } |
7a6d2196 | 1651 | |
ea667be7 ML |
1652 | DEBUG("Setting baud rate"); |
1653 | ||
7a6d2196 ML |
1654 | set_termios_speed(data, baudrate); |
1655 | ||
8d43110a ML |
1656 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1657 | free(data); | |
dc422c04 | 1658 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1659 | } |
1660 | ||
1661 | free(data); | |
7a6d2196 | 1662 | |
c33efc48 | 1663 | RETURN_OK(); |
7a6d2196 | 1664 | } |
5cea279a | 1665 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1666 | |
1667 | #ifdef USE_TERMIOX | |
bd791fe1 | 1668 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1669 | { |
bd791fe1 | 1670 | void *termx; |
40978c2b | 1671 | |
bd791fe1 | 1672 | TRACE("%d, %p", fd, data); |
c33efc48 | 1673 | |
ea667be7 ML |
1674 | DEBUG("Getting advanced flow control"); |
1675 | ||
bd791fe1 | 1676 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1677 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1678 | |
bd791fe1 ML |
1679 | if (ioctl(fd, TCGETX, termx) < 0) { |
1680 | free(termx); | |
dc422c04 | 1681 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1682 | } |
40978c2b | 1683 | |
bd791fe1 ML |
1684 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1685 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1686 | |
bd791fe1 | 1687 | free(termx); |
8d43110a | 1688 | |
c33efc48 | 1689 | RETURN_OK(); |
40978c2b ML |
1690 | } |
1691 | ||
bd791fe1 | 1692 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1693 | { |
bd791fe1 | 1694 | void *termx; |
40978c2b | 1695 | |
bd791fe1 | 1696 | TRACE("%d, %p", fd, data); |
c33efc48 | 1697 | |
ea667be7 ML |
1698 | DEBUG("Getting advanced flow control"); |
1699 | ||
bd791fe1 | 1700 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1701 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1702 | |
bd791fe1 ML |
1703 | if (ioctl(fd, TCGETX, termx) < 0) { |
1704 | free(termx); | |
dc422c04 | 1705 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1706 | } |
40978c2b | 1707 | |
ea667be7 ML |
1708 | DEBUG("Setting advanced flow control"); |
1709 | ||
bd791fe1 ML |
1710 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1711 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1712 | |
bd791fe1 ML |
1713 | if (ioctl(fd, TCSETX, termx) < 0) { |
1714 | free(termx); | |
dc422c04 | 1715 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1716 | } |
1717 | ||
bd791fe1 | 1718 | free(termx); |
40978c2b | 1719 | |
c33efc48 | 1720 | RETURN_OK(); |
40978c2b ML |
1721 | } |
1722 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1723 | |
eb6ed20f ML |
1724 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1725 | struct sp_port_config *config) | |
8094e4a0 | 1726 | { |
da2748bf | 1727 | unsigned int i; |
cbf628c7 | 1728 | |
c33efc48 ML |
1729 | TRACE("%p, %p, %p", port, data, config); |
1730 | ||
7890cef6 | 1731 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1732 | |
8094e4a0 | 1733 | #ifdef _WIN32 |
e33ab9aa | 1734 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1735 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1736 | |
067417af | 1737 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1738 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1739 | config->baudrate = std_baudrates[i].value; |
1740 | break; | |
1741 | } | |
1742 | } | |
1743 | ||
1744 | if (i == NUM_STD_BAUDRATES) | |
1745 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1746 | config->baudrate = data->dcb.BaudRate; |
067417af | 1747 | |
e33ab9aa | 1748 | config->bits = data->dcb.ByteSize; |
067417af | 1749 | |
e33ab9aa ML |
1750 | if (data->dcb.fParity) |
1751 | switch (data->dcb.Parity) { | |
067417af ML |
1752 | case NOPARITY: |
1753 | config->parity = SP_PARITY_NONE; | |
1754 | break; | |
e432ce60 ML |
1755 | case ODDPARITY: |
1756 | config->parity = SP_PARITY_ODD; | |
1757 | break; | |
067417af ML |
1758 | case EVENPARITY: |
1759 | config->parity = SP_PARITY_EVEN; | |
1760 | break; | |
e432ce60 ML |
1761 | case MARKPARITY: |
1762 | config->parity = SP_PARITY_MARK; | |
1763 | break; | |
1764 | case SPACEPARITY: | |
1765 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1766 | break; |
1767 | default: | |
1768 | config->parity = -1; | |
1769 | } | |
1770 | else | |
1771 | config->parity = SP_PARITY_NONE; | |
1772 | ||
e33ab9aa | 1773 | switch (data->dcb.StopBits) { |
067417af ML |
1774 | case ONESTOPBIT: |
1775 | config->stopbits = 1; | |
1776 | break; | |
1777 | case TWOSTOPBITS: | |
1778 | config->stopbits = 2; | |
1779 | break; | |
1780 | default: | |
1781 | config->stopbits = -1; | |
1782 | } | |
1783 | ||
e33ab9aa | 1784 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1785 | case RTS_CONTROL_DISABLE: |
1786 | config->rts = SP_RTS_OFF; | |
1787 | break; | |
1788 | case RTS_CONTROL_ENABLE: | |
1789 | config->rts = SP_RTS_ON; | |
1790 | break; | |
1791 | case RTS_CONTROL_HANDSHAKE: | |
1792 | config->rts = SP_RTS_FLOW_CONTROL; | |
1793 | break; | |
1794 | default: | |
1795 | config->rts = -1; | |
067417af ML |
1796 | } |
1797 | ||
e33ab9aa | 1798 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1799 | |
e33ab9aa | 1800 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1801 | case DTR_CONTROL_DISABLE: |
1802 | config->dtr = SP_DTR_OFF; | |
1803 | break; | |
1804 | case DTR_CONTROL_ENABLE: | |
1805 | config->dtr = SP_DTR_ON; | |
1806 | break; | |
1807 | case DTR_CONTROL_HANDSHAKE: | |
1808 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1809 | break; | |
1810 | default: | |
1811 | config->dtr = -1; | |
067417af ML |
1812 | } |
1813 | ||
e33ab9aa ML |
1814 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1815 | ||
c6754b45 ML |
1816 | if (data->dcb.fInX) { |
1817 | if (data->dcb.fOutX) | |
1818 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1819 | else | |
1820 | config->xon_xoff = SP_XONXOFF_IN; | |
1821 | } else { | |
1822 | if (data->dcb.fOutX) | |
1823 | config->xon_xoff = SP_XONXOFF_OUT; | |
1824 | else | |
1825 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1826 | } | |
1827 | ||
e33ab9aa ML |
1828 | #else // !_WIN32 |
1829 | ||
1830 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1831 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1832 | |
1833 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1834 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1835 | |
1836 | #ifdef USE_TERMIOX | |
bd791fe1 | 1837 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1838 | |
1839 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1840 | data->termiox_supported = 0; | |
1841 | else if (ret < 0) | |
c33efc48 | 1842 | RETURN_CODEVAL(ret); |
68ec29db ML |
1843 | else |
1844 | data->termiox_supported = 1; | |
1845 | #else | |
1846 | data->termiox_supported = 0; | |
40978c2b ML |
1847 | #endif |
1848 | ||
067417af | 1849 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1850 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1851 | config->baudrate = std_baudrates[i].value; |
1852 | break; | |
1853 | } | |
1854 | } | |
1855 | ||
31b3a8f5 MH |
1856 | if (i == NUM_STD_BAUDRATES) { |
1857 | #ifdef __APPLE__ | |
1858 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1859 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1860 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1861 | #else |
067417af | 1862 | config->baudrate = -1; |
31b3a8f5 MH |
1863 | #endif |
1864 | } | |
067417af | 1865 | |
e33ab9aa | 1866 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1867 | case CS8: |
1868 | config->bits = 8; | |
1869 | break; | |
1870 | case CS7: | |
1871 | config->bits = 7; | |
1872 | break; | |
1873 | case CS6: | |
1874 | config->bits = 6; | |
1875 | break; | |
1876 | case CS5: | |
1877 | config->bits = 5; | |
1878 | break; | |
1879 | default: | |
1880 | config->bits = -1; | |
1881 | } | |
1882 | ||
e33ab9aa | 1883 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1884 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1885 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1886 | config->parity = -1; |
c3e05092 | 1887 | #ifdef CMSPAR |
e432ce60 ML |
1888 | else if (data->term.c_cflag & CMSPAR) |
1889 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1890 | #endif |
067417af | 1891 | else |
e33ab9aa | 1892 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1893 | |
e33ab9aa | 1894 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1895 | |
e33ab9aa | 1896 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1897 | config->rts = SP_RTS_FLOW_CONTROL; |
1898 | config->cts = SP_CTS_FLOW_CONTROL; | |
1899 | } else { | |
bd791fe1 | 1900 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1901 | config->rts = SP_RTS_FLOW_CONTROL; |
1902 | else | |
1903 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1904 | ||
bd791fe1 | 1905 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1906 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1907 | } |
1908 | ||
bd791fe1 | 1909 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1910 | config->dtr = SP_DTR_FLOW_CONTROL; |
1911 | else | |
1912 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1913 | ||
bd791fe1 | 1914 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1915 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1916 | |
e29b93a5 ML |
1917 | if (data->term.c_iflag & IXOFF) { |
1918 | if (data->term.c_iflag & IXON) | |
1919 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1920 | else | |
1921 | config->xon_xoff = SP_XONXOFF_IN; | |
1922 | } else { | |
1923 | if (data->term.c_iflag & IXON) | |
1924 | config->xon_xoff = SP_XONXOFF_OUT; | |
1925 | else | |
1926 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1927 | } | |
067417af ML |
1928 | #endif |
1929 | ||
c33efc48 | 1930 | RETURN_OK(); |
067417af ML |
1931 | } |
1932 | ||
7a6d2196 | 1933 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1934 | const struct sp_port_config *config) |
18fc2dd1 | 1935 | { |
e33ab9aa | 1936 | unsigned int i; |
31b3a8f5 MH |
1937 | #ifdef __APPLE__ |
1938 | BAUD_TYPE baud_nonstd; | |
1939 | ||
1940 | baud_nonstd = B0; | |
1941 | #endif | |
5cea279a | 1942 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1943 | int baud_nonstd = 0; |
1944 | #endif | |
18fc2dd1 | 1945 | |
c33efc48 ML |
1946 | TRACE("%p, %p, %p", port, data, config); |
1947 | ||
7890cef6 | 1948 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1949 | |
e33ab9aa | 1950 | #ifdef _WIN32 |
6bd6a8b5 ML |
1951 | |
1952 | TRY(await_write_completion(port)); | |
1953 | ||
eac329d2 | 1954 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1955 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1956 | if (config->baudrate == std_baudrates[i].value) { | |
1957 | data->dcb.BaudRate = std_baudrates[i].index; | |
1958 | break; | |
1959 | } | |
1960 | } | |
18fc2dd1 | 1961 | |
e33ab9aa ML |
1962 | if (i == NUM_STD_BAUDRATES) |
1963 | data->dcb.BaudRate = config->baudrate; | |
39df7833 ML |
1964 | |
1965 | /* Allocate write buffer for 50ms of data at baud rate. */ | |
1966 | port->write_buf_size = max(config->baudrate / (8 * 20), 1); | |
1967 | port->write_buf = realloc(port->write_buf, | |
1968 | port->write_buf_size); | |
1969 | ||
1970 | if (!port->write_buf) | |
1971 | RETURN_ERROR(SP_ERR_MEM, "Allocating write buffer failed"); | |
e33ab9aa | 1972 | } |
18fc2dd1 | 1973 | |
e33ab9aa ML |
1974 | if (config->bits >= 0) |
1975 | data->dcb.ByteSize = config->bits; | |
1976 | ||
1977 | if (config->parity >= 0) { | |
1978 | switch (config->parity) { | |
e33ab9aa ML |
1979 | case SP_PARITY_NONE: |
1980 | data->dcb.Parity = NOPARITY; | |
1981 | break; | |
e432ce60 ML |
1982 | case SP_PARITY_ODD: |
1983 | data->dcb.Parity = ODDPARITY; | |
1984 | break; | |
e33ab9aa ML |
1985 | case SP_PARITY_EVEN: |
1986 | data->dcb.Parity = EVENPARITY; | |
1987 | break; | |
e432ce60 ML |
1988 | case SP_PARITY_MARK: |
1989 | data->dcb.Parity = MARKPARITY; | |
1990 | break; | |
1991 | case SP_PARITY_SPACE: | |
1992 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1993 | break; |
1994 | default: | |
c33efc48 | 1995 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1996 | } |
18fc2dd1 ML |
1997 | } |
1998 | ||
e33ab9aa ML |
1999 | if (config->stopbits >= 0) { |
2000 | switch (config->stopbits) { | |
2001 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
2002 | case 1: | |
2003 | data->dcb.StopBits = ONESTOPBIT; | |
2004 | break; | |
2005 | case 2: | |
2006 | data->dcb.StopBits = TWOSTOPBITS; | |
2007 | break; | |
2008 | default: | |
c33efc48 | 2009 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
2010 | } |
2011 | } | |
2012 | ||
2013 | if (config->rts >= 0) { | |
2014 | switch (config->rts) { | |
2015 | case SP_RTS_OFF: | |
2016 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
2017 | break; | |
2018 | case SP_RTS_ON: | |
2019 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
2020 | break; | |
2021 | case SP_RTS_FLOW_CONTROL: | |
2022 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
2023 | break; | |
2024 | default: | |
c33efc48 | 2025 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
2026 | } |
2027 | } | |
2028 | ||
2029 | if (config->cts >= 0) { | |
2030 | switch (config->cts) { | |
2031 | case SP_CTS_IGNORE: | |
2032 | data->dcb.fOutxCtsFlow = FALSE; | |
2033 | break; | |
2034 | case SP_CTS_FLOW_CONTROL: | |
2035 | data->dcb.fOutxCtsFlow = TRUE; | |
2036 | break; | |
2037 | default: | |
c33efc48 | 2038 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
2039 | } |
2040 | } | |
2041 | ||
2042 | if (config->dtr >= 0) { | |
2043 | switch (config->dtr) { | |
2044 | case SP_DTR_OFF: | |
2045 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
2046 | break; | |
2047 | case SP_DTR_ON: | |
2048 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
2049 | break; | |
2050 | case SP_DTR_FLOW_CONTROL: | |
2051 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
2052 | break; | |
2053 | default: | |
c33efc48 | 2054 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
2055 | } |
2056 | } | |
2057 | ||
2058 | if (config->dsr >= 0) { | |
2059 | switch (config->dsr) { | |
2060 | case SP_DSR_IGNORE: | |
2061 | data->dcb.fOutxDsrFlow = FALSE; | |
2062 | break; | |
2063 | case SP_DSR_FLOW_CONTROL: | |
2064 | data->dcb.fOutxDsrFlow = TRUE; | |
2065 | break; | |
2066 | default: | |
c33efc48 | 2067 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 2068 | } |
18fc2dd1 ML |
2069 | } |
2070 | ||
e33ab9aa ML |
2071 | if (config->xon_xoff >= 0) { |
2072 | switch (config->xon_xoff) { | |
2073 | case SP_XONXOFF_DISABLED: | |
2074 | data->dcb.fInX = FALSE; | |
2075 | data->dcb.fOutX = FALSE; | |
2076 | break; | |
2077 | case SP_XONXOFF_IN: | |
2078 | data->dcb.fInX = TRUE; | |
2079 | data->dcb.fOutX = FALSE; | |
2080 | break; | |
2081 | case SP_XONXOFF_OUT: | |
2082 | data->dcb.fInX = FALSE; | |
2083 | data->dcb.fOutX = TRUE; | |
2084 | break; | |
2085 | case SP_XONXOFF_INOUT: | |
2086 | data->dcb.fInX = TRUE; | |
2087 | data->dcb.fOutX = TRUE; | |
2088 | break; | |
2089 | default: | |
c33efc48 | 2090 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2091 | } |
2092 | } | |
2093 | ||
2094 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 2095 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 2096 | |
31b3a8f5 | 2097 | #else /* !_WIN32 */ |
e33ab9aa | 2098 | |
7a6d2196 ML |
2099 | int controlbits; |
2100 | ||
eac329d2 | 2101 | if (config->baudrate >= 0) { |
e33ab9aa ML |
2102 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
2103 | if (config->baudrate == std_baudrates[i].value) { | |
2104 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2105 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
2106 | |
2107 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2108 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
2109 | break; |
2110 | } | |
2111 | } | |
2112 | ||
31b3a8f5 MH |
2113 | /* Non-standard baud rate */ |
2114 | if (i == NUM_STD_BAUDRATES) { | |
2115 | #ifdef __APPLE__ | |
24abdb68 | 2116 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2117 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2118 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2119 | baud_nonstd = config->baudrate; |
5cea279a | 2120 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2121 | baud_nonstd = 1; |
31b3a8f5 | 2122 | #else |
c33efc48 | 2123 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2124 | #endif |
2125 | } | |
e33ab9aa ML |
2126 | } |
2127 | ||
2128 | if (config->bits >= 0) { | |
2129 | data->term.c_cflag &= ~CSIZE; | |
2130 | switch (config->bits) { | |
2131 | case 8: | |
2132 | data->term.c_cflag |= CS8; | |
2133 | break; | |
2134 | case 7: | |
2135 | data->term.c_cflag |= CS7; | |
2136 | break; | |
2137 | case 6: | |
2138 | data->term.c_cflag |= CS6; | |
2139 | break; | |
23922313 UH |
2140 | case 5: |
2141 | data->term.c_cflag |= CS5; | |
2142 | break; | |
e33ab9aa | 2143 | default: |
c33efc48 | 2144 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2145 | } |
2146 | } | |
2147 | ||
2148 | if (config->parity >= 0) { | |
2149 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2150 | data->term.c_cflag &= ~(PARENB | PARODD); |
2151 | #ifdef CMSPAR | |
2152 | data->term.c_cflag &= ~CMSPAR; | |
2153 | #endif | |
e33ab9aa ML |
2154 | switch (config->parity) { |
2155 | case SP_PARITY_NONE: | |
2156 | data->term.c_iflag |= IGNPAR; | |
2157 | break; | |
2158 | case SP_PARITY_EVEN: | |
2159 | data->term.c_cflag |= PARENB; | |
2160 | break; | |
2161 | case SP_PARITY_ODD: | |
2162 | data->term.c_cflag |= PARENB | PARODD; | |
2163 | break; | |
afb518f0 | 2164 | #ifdef CMSPAR |
e432ce60 | 2165 | case SP_PARITY_MARK: |
c3e05092 | 2166 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2167 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2168 | break; |
2169 | case SP_PARITY_SPACE: | |
c3e05092 | 2170 | data->term.c_cflag |= PARENB; |
c3e05092 | 2171 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2172 | break; |
afb518f0 ML |
2173 | #else |
2174 | case SP_PARITY_MARK: | |
2175 | case SP_PARITY_SPACE: | |
2176 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2177 | #endif | |
e33ab9aa | 2178 | default: |
c33efc48 | 2179 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2180 | } |
2181 | } | |
2182 | ||
2183 | if (config->stopbits >= 0) { | |
2184 | data->term.c_cflag &= ~CSTOPB; | |
2185 | switch (config->stopbits) { | |
2186 | case 1: | |
2187 | data->term.c_cflag &= ~CSTOPB; | |
2188 | break; | |
2189 | case 2: | |
2190 | data->term.c_cflag |= CSTOPB; | |
2191 | break; | |
2192 | default: | |
c33efc48 | 2193 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2194 | } |
2195 | } | |
2196 | ||
eac329d2 | 2197 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2198 | if (data->termiox_supported) { |
bd791fe1 | 2199 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2200 | switch (config->rts) { |
2201 | case SP_RTS_OFF: | |
2202 | case SP_RTS_ON: | |
2203 | controlbits = TIOCM_RTS; | |
2204 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2205 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2206 | break; |
2207 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2208 | data->rts_flow = 1; |
68ec29db ML |
2209 | break; |
2210 | default: | |
2211 | break; | |
e33ab9aa | 2212 | } |
68ec29db | 2213 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2214 | data->cts_flow = 1; |
e33ab9aa | 2215 | |
bd791fe1 | 2216 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2217 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2218 | else |
2219 | data->term.c_iflag &= ~CRTSCTS; | |
2220 | } else { | |
2221 | /* Asymmetric use of RTS/CTS not supported. */ | |
2222 | if (data->term.c_iflag & CRTSCTS) { | |
2223 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2224 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2225 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2226 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2227 | } |
2228 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2229 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2230 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2231 | } |
e33ab9aa | 2232 | } else { |
68ec29db ML |
2233 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2234 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2235 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2236 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2237 | } |
2238 | ||
2239 | if (config->rts >= 0) { | |
2240 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2241 | data->term.c_iflag |= CRTSCTS; | |
2242 | } else { | |
2243 | controlbits = TIOCM_RTS; | |
2244 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2245 | &controlbits) < 0) | |
c33efc48 | 2246 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2247 | } |
e33ab9aa ML |
2248 | } |
2249 | } | |
2250 | } | |
2251 | ||
eac329d2 | 2252 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2253 | if (data->termiox_supported) { |
bd791fe1 | 2254 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2255 | switch (config->dtr) { |
2256 | case SP_DTR_OFF: | |
2257 | case SP_DTR_ON: | |
2258 | controlbits = TIOCM_DTR; | |
2259 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2260 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2261 | break; |
2262 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2263 | data->dtr_flow = 1; |
68ec29db ML |
2264 | break; |
2265 | default: | |
2266 | break; | |
2267 | } | |
2268 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2269 | data->dsr_flow = 1; |
68ec29db ML |
2270 | } else { |
2271 | /* DTR/DSR flow control not supported. */ | |
2272 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2273 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2274 | |
68ec29db ML |
2275 | if (config->dtr >= 0) { |
2276 | controlbits = TIOCM_DTR; | |
2277 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2278 | &controlbits) < 0) | |
c33efc48 | 2279 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2280 | } |
e33ab9aa ML |
2281 | } |
2282 | } | |
2283 | ||
2284 | if (config->xon_xoff >= 0) { | |
2285 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2286 | switch (config->xon_xoff) { | |
2287 | case SP_XONXOFF_DISABLED: | |
2288 | break; | |
2289 | case SP_XONXOFF_IN: | |
2290 | data->term.c_iflag |= IXOFF; | |
2291 | break; | |
2292 | case SP_XONXOFF_OUT: | |
2293 | data->term.c_iflag |= IXON | IXANY; | |
2294 | break; | |
2295 | case SP_XONXOFF_INOUT: | |
2296 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2297 | break; | |
2298 | default: | |
c33efc48 | 2299 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2300 | } |
2301 | } | |
2302 | ||
3f5c06d0 | 2303 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2304 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2305 | |
2306 | #ifdef __APPLE__ | |
2307 | if (baud_nonstd != B0) { | |
2308 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2309 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2310 | /* |
2311 | * Set baud rates in data->term to correct, but incompatible | |
2312 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2313 | */ | |
31b3a8f5 | 2314 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2315 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2316 | } |
7a6d2196 | 2317 | #elif defined(__linux__) |
5cea279a | 2318 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2319 | if (baud_nonstd) |
2320 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2321 | #endif |
40978c2b | 2322 | #ifdef USE_TERMIOX |
68ec29db | 2323 | if (data->termiox_supported) |
bd791fe1 | 2324 | TRY(set_flow(port->fd, data)); |
40978c2b | 2325 | #endif |
7a6d2196 | 2326 | #endif |
31b3a8f5 MH |
2327 | |
2328 | #endif /* !_WIN32 */ | |
e33ab9aa | 2329 | |
c33efc48 | 2330 | RETURN_OK(); |
e33ab9aa ML |
2331 | } |
2332 | ||
970f279a | 2333 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2334 | { |
59131d60 | 2335 | struct sp_port_config *config; |
9b1502ef | 2336 | |
00d8c56d UH |
2337 | TRACE("%p", config_ptr); |
2338 | ||
9b1502ef ML |
2339 | if (!config_ptr) |
2340 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2341 | ||
59131d60 ML |
2342 | *config_ptr = NULL; |
2343 | ||
2344 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2345 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2346 | |
59131d60 ML |
2347 | config->baudrate = -1; |
2348 | config->bits = -1; | |
2349 | config->parity = -1; | |
2350 | config->stopbits = -1; | |
2351 | config->rts = -1; | |
2352 | config->cts = -1; | |
2353 | config->dtr = -1; | |
2354 | config->dsr = -1; | |
2355 | ||
2356 | *config_ptr = config; | |
2357 | ||
9b1502ef ML |
2358 | RETURN_OK(); |
2359 | } | |
2360 | ||
970f279a | 2361 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2362 | { |
2363 | TRACE("%p", config); | |
2364 | ||
2365 | if (!config) | |
2366 | DEBUG("Null config"); | |
2367 | else | |
2368 | free(config); | |
2369 | ||
2370 | RETURN(); | |
2371 | } | |
2372 | ||
970f279a AJ |
2373 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2374 | struct sp_port_config *config) | |
70cd37de ML |
2375 | { |
2376 | struct port_data data; | |
2377 | ||
2378 | TRACE("%p, %p", port, config); | |
2379 | ||
2380 | CHECK_OPEN_PORT(); | |
2381 | ||
2382 | if (!config) | |
9b1502ef | 2383 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2384 | |
2385 | TRY(get_config(port, &data, config)); | |
2386 | ||
2387 | RETURN_OK(); | |
2388 | } | |
2389 | ||
970f279a AJ |
2390 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2391 | const struct sp_port_config *config) | |
e33ab9aa | 2392 | { |
8f189c4c | 2393 | struct port_data data; |
e33ab9aa ML |
2394 | struct sp_port_config prev_config; |
2395 | ||
c33efc48 ML |
2396 | TRACE("%p, %p", port, config); |
2397 | ||
dec10e31 | 2398 | CHECK_OPEN_PORT(); |
823690ae ML |
2399 | |
2400 | if (!config) | |
c33efc48 | 2401 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2402 | |
e33ab9aa ML |
2403 | TRY(get_config(port, &data, &prev_config)); |
2404 | TRY(set_config(port, &data, config)); | |
74510d4b | 2405 | |
c33efc48 | 2406 | RETURN_OK(); |
74510d4b ML |
2407 | } |
2408 | ||
9b1502ef | 2409 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2410 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2411 | struct port_data data; \ |
e33ab9aa | 2412 | struct sp_port_config config; \ |
c33efc48 | 2413 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2414 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2415 | TRY(get_config(port, &data, &config)); \ |
2416 | config.x = x; \ | |
2417 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2418 | RETURN_OK(); \ |
9b1502ef | 2419 | } \ |
970f279a AJ |
2420 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2421 | type *x) { \ | |
00d8c56d | 2422 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2423 | if (!x) \ |
2424 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2425 | if (!config) \ |
2426 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2427 | *x = config->x; \ | |
2428 | RETURN_OK(); \ | |
2429 | } \ | |
970f279a AJ |
2430 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2431 | type x) { \ | |
9b1502ef ML |
2432 | TRACE("%p, %d", config, x); \ |
2433 | if (!config) \ | |
2434 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2435 | config->x = x; \ | |
2436 | RETURN_OK(); \ | |
9069c2fb ML |
2437 | } |
2438 | ||
9b1502ef ML |
2439 | CREATE_ACCESSORS(baudrate, int) |
2440 | CREATE_ACCESSORS(bits, int) | |
2441 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2442 | CREATE_ACCESSORS(stopbits, int) | |
2443 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2444 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2445 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2446 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2447 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2448 | ||
970f279a AJ |
2449 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2450 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2451 | { |
9b1502ef ML |
2452 | if (!config) |
2453 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2454 | |
2455 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2456 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2457 | |
e33ab9aa | 2458 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2459 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2460 | else |
9b1502ef | 2461 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2462 | |
2463 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2464 | config->rts = SP_RTS_FLOW_CONTROL; |
2465 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2466 | } else { |
9b1502ef ML |
2467 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2468 | config->rts = SP_RTS_ON; | |
2469 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2470 | } |
2471 | ||
2472 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2473 | config->dtr = SP_DTR_FLOW_CONTROL; |
2474 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2475 | } else { |
9b1502ef ML |
2476 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2477 | config->dtr = SP_DTR_ON; | |
2478 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2479 | } |
2480 | ||
9b1502ef ML |
2481 | RETURN_OK(); |
2482 | } | |
2483 | ||
970f279a AJ |
2484 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2485 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2486 | { |
2487 | struct port_data data; | |
2488 | struct sp_port_config config; | |
2489 | ||
2490 | TRACE("%p, %d", port, flowcontrol); | |
2491 | ||
2492 | CHECK_OPEN_PORT(); | |
2493 | ||
2494 | TRY(get_config(port, &data, &config)); | |
2495 | ||
2496 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2497 | ||
e33ab9aa ML |
2498 | TRY(set_config(port, &data, &config)); |
2499 | ||
c33efc48 | 2500 | RETURN_OK(); |
e33ab9aa ML |
2501 | } |
2502 | ||
970f279a AJ |
2503 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2504 | enum sp_signal *signals) | |
8cf7c697 | 2505 | { |
c33efc48 ML |
2506 | TRACE("%p, %p", port, signals); |
2507 | ||
dec10e31 | 2508 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2509 | |
2510 | if (!signals) | |
c33efc48 | 2511 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2512 | |
7890cef6 | 2513 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2514 | |
8cf7c697 ML |
2515 | *signals = 0; |
2516 | #ifdef _WIN32 | |
2517 | DWORD bits; | |
2518 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2519 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2520 | if (bits & MS_CTS_ON) |
2521 | *signals |= SP_SIG_CTS; | |
2522 | if (bits & MS_DSR_ON) | |
2523 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2524 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2525 | *signals |= SP_SIG_DCD; |
2526 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2527 | *signals |= SP_SIG_RI; |
2528 | #else | |
2529 | int bits; | |
2530 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2531 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2532 | if (bits & TIOCM_CTS) |
2533 | *signals |= SP_SIG_CTS; | |
2534 | if (bits & TIOCM_DSR) | |
2535 | *signals |= SP_SIG_DSR; | |
2536 | if (bits & TIOCM_CAR) | |
2537 | *signals |= SP_SIG_DCD; | |
2538 | if (bits & TIOCM_RNG) | |
2539 | *signals |= SP_SIG_RI; | |
2540 | #endif | |
c33efc48 | 2541 | RETURN_OK(); |
8cf7c697 ML |
2542 | } |
2543 | ||
970f279a | 2544 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2545 | { |
c33efc48 ML |
2546 | TRACE("%p", port); |
2547 | ||
dec10e31 | 2548 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2549 | #ifdef _WIN32 |
2550 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2551 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2552 | #else |
2553 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2554 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2555 | #endif |
2556 | ||
c33efc48 | 2557 | RETURN_OK(); |
90cc3ee6 ML |
2558 | } |
2559 | ||
970f279a | 2560 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2561 | { |
c33efc48 ML |
2562 | TRACE("%p", port); |
2563 | ||
dec10e31 | 2564 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2565 | #ifdef _WIN32 |
2566 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2567 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2568 | #else |
2569 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2570 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2571 | #endif |
2572 | ||
c33efc48 | 2573 | RETURN_OK(); |
90cc3ee6 ML |
2574 | } |
2575 | ||
970f279a | 2576 | SP_API int sp_last_error_code(void) |
74510d4b | 2577 | { |
7890cef6 | 2578 | TRACE_VOID(); |
74510d4b | 2579 | #ifdef _WIN32 |
9caa2e86 | 2580 | RETURN_INT(GetLastError()); |
74510d4b | 2581 | #else |
9caa2e86 | 2582 | RETURN_INT(errno); |
74510d4b ML |
2583 | #endif |
2584 | } | |
2585 | ||
970f279a | 2586 | SP_API char *sp_last_error_message(void) |
74510d4b | 2587 | { |
7890cef6 | 2588 | TRACE_VOID(); |
c33efc48 | 2589 | |
74510d4b | 2590 | #ifdef _WIN32 |
9a0c4bbd | 2591 | TCHAR *message; |
74510d4b ML |
2592 | DWORD error = GetLastError(); |
2593 | ||
9a0c4bbd | 2594 | DWORD length = FormatMessage( |
74510d4b ML |
2595 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2596 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2597 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2598 | NULL, | |
2599 | error, | |
2600 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2601 | (LPTSTR) &message, | |
2602 | 0, NULL ); | |
2603 | ||
9a0c4bbd ML |
2604 | if (length >= 2 && message[length - 2] == '\r') |
2605 | message[length - 2] = '\0'; | |
2606 | ||
9caa2e86 | 2607 | RETURN_STRING(message); |
74510d4b | 2608 | #else |
9caa2e86 | 2609 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2610 | #endif |
2611 | } | |
2612 | ||
970f279a | 2613 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2614 | { |
c33efc48 ML |
2615 | TRACE("%s", message); |
2616 | ||
74510d4b ML |
2617 | #ifdef _WIN32 |
2618 | LocalFree(message); | |
64eec30d ML |
2619 | #else |
2620 | (void)message; | |
74510d4b | 2621 | #endif |
c33efc48 ML |
2622 | |
2623 | RETURN(); | |
74510d4b | 2624 | } |
863b35e6 | 2625 | |
970f279a | 2626 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2627 | { |
c33efc48 ML |
2628 | TRACE("%p", handler); |
2629 | ||
863b35e6 | 2630 | sp_debug_handler = handler; |
c33efc48 ML |
2631 | |
2632 | RETURN(); | |
863b35e6 ML |
2633 | } |
2634 | ||
970f279a | 2635 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2636 | { |
2637 | va_list args; | |
2638 | va_start(args, format); | |
2639 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2640 | fputs("sp: ", stderr); |
863b35e6 ML |
2641 | vfprintf(stderr, format, args); |
2642 | } | |
2643 | va_end(args); | |
2644 | } | |
524b0e14 | 2645 | |
970f279a | 2646 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2647 | { |
2648 | return SP_PACKAGE_VERSION_MAJOR; | |
2649 | } | |
2650 | ||
970f279a | 2651 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2652 | { |
2653 | return SP_PACKAGE_VERSION_MINOR; | |
2654 | } | |
2655 | ||
970f279a | 2656 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2657 | { |
2658 | return SP_PACKAGE_VERSION_MICRO; | |
2659 | } | |
2660 | ||
970f279a | 2661 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2662 | { |
2663 | return SP_PACKAGE_VERSION_STRING; | |
2664 | } | |
2665 | ||
970f279a | 2666 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2667 | { |
2668 | return SP_LIB_VERSION_CURRENT; | |
2669 | } | |
2670 | ||
970f279a | 2671 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2672 | { |
2673 | return SP_LIB_VERSION_REVISION; | |
2674 | } | |
2675 | ||
970f279a | 2676 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2677 | { |
2678 | return SP_LIB_VERSION_AGE; | |
2679 | } | |
2680 | ||
970f279a | 2681 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2682 | { |
2683 | return SP_LIB_VERSION_STRING; | |
2684 | } | |
2685 | ||
2686 | /** @} */ |