]>
Commit | Line | Data |
---|---|---|
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 | 66 | struct timeout { |
08eb25f5 ML |
67 | unsigned int ms, limit_ms; |
68 | struct time start, now, end, delta, delta_max; | |
32dbe2d2 ML |
69 | struct timeval delta_tv; |
70 | bool overflow; | |
71 | }; | |
72 | ||
9a7945af | 73 | static void time_get(struct time *time) |
573feabc | 74 | { |
f40ea9d4 ML |
75 | #ifdef HAVE_CLOCK_GETTIME |
76 | struct timespec ts; | |
7fb9a7b0 ML |
77 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) |
78 | clock_gettime(CLOCK_REALTIME, &ts); | |
9a7945af ML |
79 | time->tv.tv_sec = ts.tv_sec; |
80 | time->tv.tv_usec = ts.tv_nsec / 1000; | |
192e7749 ML |
81 | #elif defined(__APPLE__) |
82 | mach_timebase_info_data_t info; | |
83 | mach_timebase_info(&info); | |
84 | uint64_t ticks = mach_absolute_time(); | |
85 | uint64_t ns = (ticks * info.numer) / info.denom; | |
9a7945af ML |
86 | time->tv.tv_sec = ns / 1000000000; |
87 | time->tv.tv_usec = (ns % 1000000000) / 1000; | |
f40ea9d4 | 88 | #else |
9a7945af | 89 | gettimeofday(&time->tv, NULL); |
f40ea9d4 | 90 | #endif |
573feabc | 91 | } |
9a7945af ML |
92 | |
93 | static void time_set_ms(struct time *time, unsigned int ms) | |
94 | { | |
95 | time->tv.tv_sec = ms / 1000; | |
96 | time->tv.tv_usec = (ms % 1000) * 1000; | |
97 | } | |
98 | ||
99 | static void time_add(const struct time *a, | |
100 | const struct time *b, struct time *result) | |
101 | { | |
102 | timeradd(&a->tv, &b->tv, &result->tv); | |
103 | } | |
104 | ||
105 | static void time_sub(const struct time *a, | |
106 | const struct time *b, struct time *result) | |
107 | { | |
108 | timersub(&a->tv, &b->tv, &result->tv); | |
109 | } | |
110 | ||
111 | static bool time_greater(const struct time *a, const struct time *b) | |
112 | { | |
113 | return timercmp(&a->tv, &b->tv, >); | |
114 | } | |
115 | ||
116 | static void time_as_timeval(const struct time *time, struct timeval *tv) | |
117 | { | |
118 | *tv = time->tv; | |
119 | } | |
120 | ||
121 | static unsigned int time_as_ms(const struct time *time) | |
122 | { | |
123 | return time->tv.tv_sec * 1000 + time->tv.tv_usec / 1000; | |
124 | } | |
125 | ||
32dbe2d2 ML |
126 | static void timeout_start(struct timeout *timeout, unsigned int timeout_ms) |
127 | { | |
128 | timeout->ms = timeout_ms; | |
129 | ||
32dbe2d2 ML |
130 | /* Get time at start of operation. */ |
131 | time_get(&timeout->start); | |
132 | /* Define duration of timeout. */ | |
133 | time_set_ms(&timeout->delta, timeout_ms); | |
134 | /* Calculate time at which we should give up. */ | |
135 | time_add(&timeout->start, &timeout->delta, &timeout->end); | |
08eb25f5 ML |
136 | /* Disable limit unless timeout_limit() called. */ |
137 | timeout->limit_ms = 0; | |
138 | } | |
139 | ||
140 | static void timeout_limit(struct timeout *timeout, unsigned int limit_ms) | |
141 | { | |
142 | timeout->limit_ms = limit_ms; | |
143 | timeout->overflow = (timeout->ms > timeout->limit_ms); | |
144 | time_set_ms(&timeout->delta_max, timeout->limit_ms); | |
32dbe2d2 ML |
145 | } |
146 | ||
147 | static bool timeout_check(struct timeout *timeout) | |
148 | { | |
149 | if (timeout->ms == 0) | |
150 | return false; | |
151 | ||
152 | time_get(&timeout->now); | |
153 | time_sub(&timeout->end, &timeout->now, &timeout->delta); | |
08eb25f5 ML |
154 | if (timeout->limit_ms) |
155 | if ((timeout->overflow = time_greater(&timeout->delta, &timeout->delta_max))) | |
156 | timeout->delta = timeout->delta_max; | |
32dbe2d2 ML |
157 | |
158 | return time_greater(&timeout->now, &timeout->end); | |
159 | } | |
160 | ||
161 | static struct timeval *timeout_timeval(struct timeout *timeout) | |
162 | { | |
163 | if (timeout->ms == 0) | |
164 | return NULL; | |
165 | ||
166 | time_as_timeval(&timeout->delta, &timeout->delta_tv); | |
167 | ||
168 | return &timeout->delta_tv; | |
169 | } | |
170 | ||
171 | static unsigned int timeout_remaining_ms(struct timeout *timeout) | |
172 | { | |
173 | if (timeout->ms == 0) | |
174 | return -1; | |
08eb25f5 ML |
175 | else if (timeout->limit_ms && timeout->overflow) |
176 | return timeout->limit_ms; | |
32dbe2d2 ML |
177 | else |
178 | return time_as_ms(&timeout->delta); | |
179 | } | |
180 | ||
bd0fb609 | 181 | #endif |
573feabc | 182 | |
970f279a | 183 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
184 | { |
185 | struct sp_port *port; | |
5a8810e2 | 186 | #ifndef NO_PORT_METADATA |
a93fb468 | 187 | enum sp_return ret; |
5a8810e2 | 188 | #endif |
5919c913 | 189 | int len; |
d54e9004 | 190 | |
c33efc48 ML |
191 | TRACE("%s, %p", portname, port_ptr); |
192 | ||
32b5ac05 | 193 | if (!port_ptr) |
c33efc48 | 194 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 195 | |
77f262c4 ML |
196 | *port_ptr = NULL; |
197 | ||
d4babed2 | 198 | if (!portname) |
c33efc48 | 199 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 200 | |
7890cef6 | 201 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 202 | |
95bad38c ST |
203 | #if !defined(_WIN32) && defined(HAVE_REALPATH) |
204 | /* | |
205 | * get_port_details() below tries to be too smart and figure out | |
206 | * some transport properties from the port name which breaks with | |
207 | * symlinks. Therefore we canonicalize the portname first. | |
208 | */ | |
209 | char pathbuf[PATH_MAX + 1]; | |
210 | char *res = realpath(portname, pathbuf); | |
211 | if (!res) | |
212 | RETURN_ERROR(SP_ERR_ARG, "Could not retrieve realpath behind port name"); | |
213 | ||
214 | portname = pathbuf; | |
215 | #endif | |
216 | ||
d54e9004 | 217 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 218 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 219 | |
5919c913 ML |
220 | len = strlen(portname) + 1; |
221 | ||
eac329d2 | 222 | if (!(port->name = malloc(len))) { |
d54e9004 | 223 | free(port); |
c33efc48 | 224 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
225 | } |
226 | ||
227 | memcpy(port->name, portname, len); | |
228 | ||
8f471c66 | 229 | #ifdef _WIN32 |
e31f2c6b | 230 | port->usb_path = NULL; |
8f471c66 | 231 | port->hdl = INVALID_HANDLE_VALUE; |
39df7833 ML |
232 | port->write_buf = NULL; |
233 | port->write_buf_size = 0; | |
8f471c66 ML |
234 | #else |
235 | port->fd = -1; | |
236 | #endif | |
237 | ||
e33dcf90 ML |
238 | port->description = NULL; |
239 | port->transport = SP_TRANSPORT_NATIVE; | |
240 | port->usb_bus = -1; | |
241 | port->usb_address = -1; | |
242 | port->usb_vid = -1; | |
243 | port->usb_pid = -1; | |
244 | port->usb_manufacturer = NULL; | |
245 | port->usb_product = NULL; | |
246 | port->usb_serial = NULL; | |
247 | port->bluetooth_address = NULL; | |
248 | ||
e4ce975a | 249 | #ifndef NO_PORT_METADATA |
e33dcf90 | 250 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
251 | sp_free_port(port); |
252 | return ret; | |
253 | } | |
e4ce975a | 254 | #endif |
a93fb468 | 255 | |
77f262c4 ML |
256 | *port_ptr = port; |
257 | ||
c33efc48 | 258 | RETURN_OK(); |
d54e9004 ML |
259 | } |
260 | ||
970f279a | 261 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
262 | { |
263 | TRACE("%p", port); | |
264 | ||
265 | if (!port) | |
266 | return NULL; | |
267 | ||
9caa2e86 | 268 | RETURN_STRING(port->name); |
1c5aae9d ML |
269 | } |
270 | ||
f1480939 | 271 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
272 | { |
273 | TRACE("%p", port); | |
274 | ||
275 | if (!port || !port->description) | |
276 | return NULL; | |
277 | ||
9caa2e86 | 278 | RETURN_STRING(port->description); |
a93fb468 AJ |
279 | } |
280 | ||
ad036cc8 | 281 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
282 | { |
283 | TRACE("%p", port); | |
284 | ||
285 | if (!port) | |
286 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
287 | ||
9caa2e86 | 288 | RETURN_INT(port->transport); |
a93fb468 AJ |
289 | } |
290 | ||
970f279a AJ |
291 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
292 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
293 | { |
294 | TRACE("%p", port); | |
295 | ||
296 | if (!port) | |
297 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
298 | if (port->transport != SP_TRANSPORT_USB) | |
299 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
300 | if (port->usb_bus < 0 || port->usb_address < 0) |
301 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 302 | |
dc422c04 UH |
303 | if (usb_bus) |
304 | *usb_bus = port->usb_bus; | |
305 | if (usb_address) | |
306 | *usb_address = port->usb_address; | |
a93fb468 AJ |
307 | |
308 | RETURN_OK(); | |
309 | } | |
310 | ||
970f279a AJ |
311 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
312 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
313 | { |
314 | TRACE("%p", port); | |
315 | ||
316 | if (!port) | |
317 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
318 | if (port->transport != SP_TRANSPORT_USB) | |
319 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
320 | if (port->usb_vid < 0 || port->usb_pid < 0) |
321 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 322 | |
dc422c04 UH |
323 | if (usb_vid) |
324 | *usb_vid = port->usb_vid; | |
325 | if (usb_pid) | |
326 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
327 | |
328 | RETURN_OK(); | |
329 | } | |
330 | ||
970f279a | 331 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
332 | { |
333 | TRACE("%p", port); | |
334 | ||
335 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
336 | return NULL; | |
337 | ||
9caa2e86 | 338 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
339 | } |
340 | ||
970f279a | 341 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
342 | { |
343 | TRACE("%p", port); | |
344 | ||
345 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
346 | return NULL; | |
347 | ||
9caa2e86 | 348 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
349 | } |
350 | ||
970f279a | 351 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
352 | { |
353 | TRACE("%p", port); | |
354 | ||
355 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
356 | return NULL; | |
357 | ||
9caa2e86 | 358 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
359 | } |
360 | ||
970f279a | 361 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
362 | { |
363 | TRACE("%p", port); | |
364 | ||
365 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
366 | || !port->bluetooth_address) | |
367 | return NULL; | |
368 | ||
9caa2e86 | 369 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
370 | } |
371 | ||
970f279a AJ |
372 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
373 | void *result_ptr) | |
3c126654 | 374 | { |
00d8c56d | 375 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
376 | |
377 | if (!port) | |
378 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
379 | if (!result_ptr) |
380 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
381 | |
382 | #ifdef _WIN32 | |
383 | HANDLE *handle_ptr = result_ptr; | |
384 | *handle_ptr = port->hdl; | |
385 | #else | |
386 | int *fd_ptr = result_ptr; | |
387 | *fd_ptr = port->fd; | |
388 | #endif | |
389 | ||
390 | RETURN_OK(); | |
391 | } | |
392 | ||
970f279a AJ |
393 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
394 | struct sp_port **copy_ptr) | |
32b5ac05 | 395 | { |
c33efc48 ML |
396 | TRACE("%p, %p", port, copy_ptr); |
397 | ||
32b5ac05 | 398 | if (!copy_ptr) |
c33efc48 | 399 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
400 | |
401 | *copy_ptr = NULL; | |
402 | ||
c33efc48 ML |
403 | if (!port) |
404 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
405 | ||
406 | if (!port->name) | |
407 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 408 | |
ea667be7 ML |
409 | DEBUG("Copying port structure"); |
410 | ||
9caa2e86 | 411 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
412 | } |
413 | ||
970f279a | 414 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 415 | { |
c33efc48 ML |
416 | TRACE("%p", port); |
417 | ||
00d8c56d | 418 | if (!port) { |
c33efc48 ML |
419 | DEBUG("Null port"); |
420 | RETURN(); | |
421 | } | |
e3b2f7a4 | 422 | |
ea667be7 ML |
423 | DEBUG("Freeing port structure"); |
424 | ||
e3b2f7a4 ML |
425 | if (port->name) |
426 | free(port->name); | |
a93fb468 AJ |
427 | if (port->description) |
428 | free(port->description); | |
429 | if (port->usb_manufacturer) | |
430 | free(port->usb_manufacturer); | |
431 | if (port->usb_product) | |
432 | free(port->usb_product); | |
433 | if (port->usb_serial) | |
434 | free(port->usb_serial); | |
435 | if (port->bluetooth_address) | |
436 | free(port->bluetooth_address); | |
437 | #ifdef _WIN32 | |
438 | if (port->usb_path) | |
439 | free(port->usb_path); | |
39df7833 ML |
440 | if (port->write_buf) |
441 | free(port->write_buf); | |
a93fb468 | 442 | #endif |
e3b2f7a4 ML |
443 | |
444 | free(port); | |
c33efc48 ML |
445 | |
446 | RETURN(); | |
e3b2f7a4 ML |
447 | } |
448 | ||
970f279a AJ |
449 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
450 | const char *portname) | |
3b63f34d ML |
451 | { |
452 | void *tmp; | |
453 | unsigned int count; | |
f92f1f0c | 454 | |
81243567 UH |
455 | for (count = 0; list[count]; count++) |
456 | ; | |
d54e9004 | 457 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
458 | goto fail; |
459 | list = tmp; | |
77f262c4 | 460 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 461 | goto fail; |
db2794ce | 462 | list[count + 1] = NULL; |
3b63f34d | 463 | return list; |
f92f1f0c | 464 | |
3b63f34d ML |
465 | fail: |
466 | sp_free_port_list(list); | |
467 | return NULL; | |
468 | } | |
469 | ||
970f279a | 470 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 471 | { |
23e7fa37 | 472 | #ifndef NO_ENUMERATION |
d54e9004 | 473 | struct sp_port **list; |
48a4076f | 474 | int ret; |
23e7fa37 | 475 | #endif |
24c1a4bb | 476 | |
c33efc48 ML |
477 | TRACE("%p", list_ptr); |
478 | ||
dec10e31 ML |
479 | if (!list_ptr) |
480 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
481 | ||
63926415 UH |
482 | *list_ptr = NULL; |
483 | ||
8d12e620 ML |
484 | #ifdef NO_ENUMERATION |
485 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
486 | #else | |
ea667be7 ML |
487 | DEBUG("Enumerating ports"); |
488 | ||
8d12e620 | 489 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 490 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
491 | |
492 | list[0] = NULL; | |
3b63f34d | 493 | |
48a4076f | 494 | ret = list_ports(&list); |
77f262c4 | 495 | |
8d12e620 | 496 | if (ret == SP_OK) { |
77f262c4 | 497 | *list_ptr = list; |
8d12e620 ML |
498 | } else { |
499 | sp_free_port_list(list); | |
77f262c4 ML |
500 | *list_ptr = NULL; |
501 | } | |
8d12e620 ML |
502 | |
503 | RETURN_CODEVAL(ret); | |
504 | #endif | |
3b63f34d ML |
505 | } |
506 | ||
970f279a | 507 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
508 | { |
509 | unsigned int i; | |
f92f1f0c | 510 | |
c33efc48 ML |
511 | TRACE("%p", list); |
512 | ||
dec10e31 ML |
513 | if (!list) { |
514 | DEBUG("Null list"); | |
515 | RETURN(); | |
516 | } | |
517 | ||
ea667be7 ML |
518 | DEBUG("Freeing port list"); |
519 | ||
3b63f34d | 520 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 521 | sp_free_port(list[i]); |
3b63f34d | 522 | free(list); |
c33efc48 ML |
523 | |
524 | RETURN(); | |
3b63f34d ML |
525 | } |
526 | ||
c33efc48 | 527 | #define CHECK_PORT() do { \ |
dc422c04 | 528 | if (!port) \ |
c33efc48 | 529 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 530 | if (!port->name) \ |
dec10e31 ML |
531 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
532 | } while (0) | |
533 | #ifdef _WIN32 | |
534 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 535 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 536 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 537 | } while (0) |
74510d4b | 538 | #else |
dec10e31 | 539 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 540 | if (port->fd < 0) \ |
8062087a | 541 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 542 | } while (0) |
74510d4b | 543 | #endif |
dec10e31 ML |
544 | #define CHECK_OPEN_PORT() do { \ |
545 | CHECK_PORT(); \ | |
546 | CHECK_PORT_HANDLE(); \ | |
547 | } while (0) | |
74510d4b | 548 | |
47fcf8ec ML |
549 | #ifdef WIN32 |
550 | /** To be called after port receive buffer is emptied. */ | |
551 | static enum sp_return restart_wait(struct sp_port *port) | |
552 | { | |
553 | DWORD wait_result; | |
554 | ||
555 | if (port->wait_running) { | |
556 | /* Check status of running wait operation. */ | |
557 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
558 | &wait_result, FALSE)) { | |
559 | DEBUG("Previous wait completed"); | |
560 | port->wait_running = FALSE; | |
561 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
562 | DEBUG("Previous wait still running"); | |
563 | RETURN_OK(); | |
564 | } else { | |
565 | RETURN_FAIL("GetOverlappedResult() failed"); | |
566 | } | |
567 | } | |
568 | ||
569 | if (!port->wait_running) { | |
570 | /* Start new wait operation. */ | |
571 | if (WaitCommEvent(port->hdl, &port->events, | |
572 | &port->wait_ovl)) { | |
573 | DEBUG("New wait returned, events already pending"); | |
574 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
575 | DEBUG("New wait running in background"); | |
576 | port->wait_running = TRUE; | |
577 | } else { | |
578 | RETURN_FAIL("WaitCommEvent() failed"); | |
579 | } | |
580 | } | |
581 | ||
582 | RETURN_OK(); | |
583 | } | |
584 | #endif | |
585 | ||
970f279a | 586 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 587 | { |
bccc7c9f ML |
588 | struct port_data data; |
589 | struct sp_port_config config; | |
590 | enum sp_return ret; | |
591 | ||
00d8c56d | 592 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 593 | |
dec10e31 ML |
594 | CHECK_PORT(); |
595 | ||
276ef1b9 | 596 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 597 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 598 | |
7890cef6 | 599 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 600 | |
74510d4b | 601 | #ifdef _WIN32 |
537942c9 | 602 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 603 | char *escaped_port_name; |
537942c9 | 604 | COMSTAT status; |
99945a1f ML |
605 | |
606 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 607 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 608 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
609 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
610 | ||
74510d4b | 611 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 612 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
613 | if (flags & SP_MODE_READ) |
614 | desired_access |= GENERIC_READ; | |
615 | if (flags & SP_MODE_WRITE) | |
74510d4b | 616 | desired_access |= GENERIC_WRITE; |
74510d4b | 617 | |
99945a1f | 618 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 619 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
620 | |
621 | free(escaped_port_name); | |
622 | ||
74510d4b | 623 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 624 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
625 | |
626 | /* All timeouts initially disabled. */ | |
627 | port->timeouts.ReadIntervalTimeout = 0; | |
628 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
629 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
630 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
631 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 632 | |
e3dcf906 | 633 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
634 | sp_close(port); |
635 | RETURN_FAIL("SetCommTimeouts() failed"); | |
636 | } | |
e3dcf906 ML |
637 | |
638 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
639 | #define INIT_OVERLAPPED(ovl) do { \ |
640 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
641 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
642 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
643 | == INVALID_HANDLE_VALUE) { \ | |
644 | sp_close(port); \ | |
645 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
646 | } \ | |
647 | } while (0) | |
648 | ||
649 | INIT_OVERLAPPED(read_ovl); | |
650 | INIT_OVERLAPPED(write_ovl); | |
651 | INIT_OVERLAPPED(wait_ovl); | |
652 | ||
653 | /* Set event mask for RX and error events. */ | |
654 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 655 | sp_close(port); |
6f1186aa | 656 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 657 | } |
6f1186aa | 658 | |
e3dcf906 | 659 | port->writing = FALSE; |
47fcf8ec | 660 | port->wait_running = FALSE; |
e3dcf906 | 661 | |
47fcf8ec ML |
662 | ret = restart_wait(port); |
663 | ||
664 | if (ret < 0) { | |
665 | sp_close(port); | |
666 | RETURN_CODEVAL(ret); | |
667 | } | |
74510d4b | 668 | #else |
fa106ef1 | 669 | int flags_local = O_NONBLOCK | O_NOCTTY | O_CLOEXEC; |
f92f1f0c | 670 | |
74510d4b | 671 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 672 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 673 | flags_local |= O_RDWR; |
a036341b | 674 | else if (flags & SP_MODE_READ) |
74510d4b | 675 | flags_local |= O_RDONLY; |
a036341b ML |
676 | else if (flags & SP_MODE_WRITE) |
677 | flags_local |= O_WRONLY; | |
74510d4b ML |
678 | |
679 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 680 | RETURN_FAIL("open() failed"); |
bccc7c9f | 681 | #endif |
9cb98459 | 682 | |
e33ab9aa ML |
683 | ret = get_config(port, &data, &config); |
684 | ||
eac329d2 | 685 | if (ret < 0) { |
e33ab9aa | 686 | sp_close(port); |
c33efc48 | 687 | RETURN_CODEVAL(ret); |
e33ab9aa | 688 | } |
9cb98459 | 689 | |
bccc7c9f ML |
690 | /* Set sane port settings. */ |
691 | #ifdef _WIN32 | |
692 | data.dcb.fBinary = TRUE; | |
693 | data.dcb.fDsrSensitivity = FALSE; | |
694 | data.dcb.fErrorChar = FALSE; | |
695 | data.dcb.fNull = FALSE; | |
34442106 | 696 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 697 | #else |
b251be4b | 698 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
699 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
700 | #ifdef IUCLC | |
701 | data.term.c_iflag &= ~IUCLC; | |
702 | #endif | |
703 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
704 | #ifdef OLCUC | |
705 | data.term.c_oflag &= ~OLCUC; | |
706 | #endif | |
707 | #ifdef NLDLY | |
708 | data.term.c_oflag &= ~NLDLY; | |
709 | #endif | |
710 | #ifdef CRDLY | |
711 | data.term.c_oflag &= ~CRDLY; | |
712 | #endif | |
713 | #ifdef TABDLY | |
714 | data.term.c_oflag &= ~TABDLY; | |
715 | #endif | |
716 | #ifdef BSDLY | |
717 | data.term.c_oflag &= ~BSDLY; | |
718 | #endif | |
719 | #ifdef VTDLY | |
720 | data.term.c_oflag &= ~VTDLY; | |
721 | #endif | |
722 | #ifdef FFDLY | |
723 | data.term.c_oflag &= ~FFDLY; | |
724 | #endif | |
b251be4b | 725 | #ifdef OFILL |
9cb98459 ML |
726 | data.term.c_oflag &= ~OFILL; |
727 | #endif | |
c3e05092 | 728 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 729 | data.term.c_cc[VMIN] = 0; |
b251be4b | 730 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 731 | |
b251be4b ML |
732 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
733 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 734 | #endif |
9cb98459 | 735 | |
537942c9 | 736 | #ifdef _WIN32 |
1a2a1544 UH |
737 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
738 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
739 | #endif |
740 | ||
e33ab9aa ML |
741 | ret = set_config(port, &data, &config); |
742 | ||
eac329d2 | 743 | if (ret < 0) { |
e33ab9aa | 744 | sp_close(port); |
c33efc48 | 745 | RETURN_CODEVAL(ret); |
e33ab9aa | 746 | } |
74510d4b | 747 | |
c33efc48 | 748 | RETURN_OK(); |
74510d4b ML |
749 | } |
750 | ||
970f279a | 751 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 752 | { |
c33efc48 ML |
753 | TRACE("%p", port); |
754 | ||
dec10e31 | 755 | CHECK_OPEN_PORT(); |
74510d4b | 756 | |
7890cef6 | 757 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 758 | |
74510d4b ML |
759 | #ifdef _WIN32 |
760 | /* Returns non-zero upon success, 0 upon failure. */ | |
761 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 762 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 763 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
764 | |
765 | /* Close event handles for overlapped structures. */ | |
766 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
767 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
768 | CloseHandle(port->ovl.hEvent) == 0) \ | |
769 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
770 | } while (0) | |
771 | CLOSE_OVERLAPPED(read_ovl); | |
772 | CLOSE_OVERLAPPED(write_ovl); | |
773 | CLOSE_OVERLAPPED(wait_ovl); | |
774 | ||
39df7833 ML |
775 | if (port->write_buf) { |
776 | free(port->write_buf); | |
777 | port->write_buf = NULL; | |
778 | } | |
74510d4b ML |
779 | #else |
780 | /* Returns 0 upon success, -1 upon failure. */ | |
781 | if (close(port->fd) == -1) | |
c33efc48 | 782 | RETURN_FAIL("close() failed"); |
8f471c66 | 783 | port->fd = -1; |
74510d4b ML |
784 | #endif |
785 | ||
c33efc48 | 786 | RETURN_OK(); |
74510d4b ML |
787 | } |
788 | ||
970f279a | 789 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 790 | { |
00d8c56d | 791 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 792 | |
dec10e31 ML |
793 | CHECK_OPEN_PORT(); |
794 | ||
795 | if (buffers > SP_BUF_BOTH) | |
796 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 797 | |
0ba3e49b | 798 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 799 | |
7890cef6 ML |
800 | DEBUG_FMT("Flushing %s buffers on port %s", |
801 | buffer_names[buffers], port->name); | |
ea667be7 | 802 | |
74510d4b | 803 | #ifdef _WIN32 |
fd8fd11a ML |
804 | DWORD flags = 0; |
805 | if (buffers & SP_BUF_INPUT) | |
806 | flags |= PURGE_RXCLEAR; | |
807 | if (buffers & SP_BUF_OUTPUT) | |
808 | flags |= PURGE_TXCLEAR; | |
809 | ||
74510d4b | 810 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 811 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 812 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
813 | |
814 | if (buffers & SP_BUF_INPUT) | |
815 | TRY(restart_wait(port)); | |
74510d4b | 816 | #else |
fd8fd11a | 817 | int flags = 0; |
ad749855 | 818 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 819 | flags = TCIOFLUSH; |
ad749855 | 820 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 821 | flags = TCIFLUSH; |
ad749855 | 822 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
823 | flags = TCOFLUSH; |
824 | ||
74510d4b | 825 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 826 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 827 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 828 | #endif |
c33efc48 | 829 | RETURN_OK(); |
74510d4b ML |
830 | } |
831 | ||
970f279a | 832 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 833 | { |
c33efc48 ML |
834 | TRACE("%p", port); |
835 | ||
dec10e31 | 836 | CHECK_OPEN_PORT(); |
69a3739c | 837 | |
7890cef6 | 838 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 839 | |
69a3739c ML |
840 | #ifdef _WIN32 |
841 | /* Returns non-zero upon success, 0 upon failure. */ | |
842 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 843 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 844 | RETURN_OK(); |
69a3739c | 845 | #else |
2c827b21 ML |
846 | int result; |
847 | while (1) { | |
abd31fd9 ML |
848 | #if defined(__ANDROID__) && (__ANDROID_API__ < 21) |
849 | /* Android only has tcdrain from platform 21 onwards. | |
850 | * On previous API versions, use the ioctl directly. */ | |
33fd8804 ML |
851 | int arg = 1; |
852 | result = ioctl(port->fd, TCSBRK, &arg); | |
853 | #else | |
2c827b21 | 854 | result = tcdrain(port->fd); |
33fd8804 | 855 | #endif |
2c827b21 ML |
856 | if (result < 0) { |
857 | if (errno == EINTR) { | |
858 | DEBUG("tcdrain() was interrupted"); | |
859 | continue; | |
860 | } else { | |
861 | RETURN_FAIL("tcdrain() failed"); | |
862 | } | |
863 | } else { | |
864 | RETURN_OK(); | |
865 | } | |
866 | } | |
69a3739c | 867 | #endif |
69a3739c ML |
868 | } |
869 | ||
62ed9f80 ML |
870 | #ifdef _WIN32 |
871 | static enum sp_return await_write_completion(struct sp_port *port) | |
872 | { | |
873 | TRACE("%p", port); | |
874 | DWORD bytes_written; | |
875 | BOOL result; | |
876 | ||
877 | /* Wait for previous non-blocking write to complete, if any. */ | |
878 | if (port->writing) { | |
879 | DEBUG("Waiting for previous write to complete"); | |
880 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
881 | port->writing = 0; | |
882 | if (!result) | |
883 | RETURN_FAIL("Previous write failed to complete"); | |
884 | DEBUG("Previous write completed"); | |
885 | } | |
886 | ||
887 | RETURN_OK(); | |
888 | } | |
889 | #endif | |
890 | ||
970f279a | 891 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 892 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 893 | { |
1b91c6ea | 894 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
895 | |
896 | CHECK_OPEN_PORT(); | |
897 | ||
898 | if (!buf) | |
899 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
900 | ||
1b91c6ea | 901 | if (timeout_ms) |
7890cef6 | 902 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 903 | count, port->name, timeout_ms); |
e3dcf906 | 904 | else |
7890cef6 ML |
905 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
906 | count, port->name); | |
e3dcf906 ML |
907 | |
908 | if (count == 0) | |
9caa2e86 | 909 | RETURN_INT(0); |
e3dcf906 ML |
910 | |
911 | #ifdef _WIN32 | |
912 | DWORD bytes_written = 0; | |
e3dcf906 | 913 | |
62ed9f80 | 914 | TRY(await_write_completion(port)); |
e3dcf906 ML |
915 | |
916 | /* Set timeout. */ | |
27a58c05 ML |
917 | if (port->timeouts.WriteTotalTimeoutConstant != timeout_ms) { |
918 | port->timeouts.WriteTotalTimeoutConstant = timeout_ms; | |
919 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
920 | RETURN_FAIL("SetCommTimeouts() failed"); | |
921 | } | |
e3dcf906 | 922 | |
b457865b ML |
923 | /* Reduce count if it exceeds the WriteFile limit. */ |
924 | if (count > WRITEFILE_MAX_SIZE) | |
925 | count = WRITEFILE_MAX_SIZE; | |
926 | ||
e3dcf906 | 927 | /* Start write. */ |
bbe566fe | 928 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl)) { |
e3dcf906 | 929 | DEBUG("Write completed immediately"); |
9caa2e86 | 930 | RETURN_INT(count); |
bbe566fe ML |
931 | } else if (GetLastError() == ERROR_IO_PENDING) { |
932 | DEBUG("Waiting for write to complete"); | |
aee7d691 UH |
933 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) { |
934 | if (GetLastError() == ERROR_SEM_TIMEOUT) { | |
935 | DEBUG("Write timed out"); | |
936 | RETURN_INT(0); | |
937 | } else { | |
938 | RETURN_FAIL("GetOverlappedResult() failed"); | |
939 | } | |
940 | } | |
bbe566fe ML |
941 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
942 | RETURN_INT(bytes_written); | |
943 | } else { | |
944 | RETURN_FAIL("WriteFile() failed"); | |
e3dcf906 ML |
945 | } |
946 | #else | |
947 | size_t bytes_written = 0; | |
948 | unsigned char *ptr = (unsigned char *) buf; | |
32dbe2d2 | 949 | struct timeout timeout; |
76222ee5 | 950 | int started = 0; |
e3dcf906 ML |
951 | fd_set fds; |
952 | int result; | |
953 | ||
32dbe2d2 | 954 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 955 | |
772c5861 ML |
956 | FD_ZERO(&fds); |
957 | FD_SET(port->fd, &fds); | |
958 | ||
e3dcf906 | 959 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 960 | while (bytes_written < count) { |
76222ee5 ML |
961 | /* |
962 | * Check timeout only if we have run select() at least once, | |
963 | * to avoid any issues if a short timeout is reached before | |
964 | * select() is even run. | |
965 | */ | |
32dbe2d2 ML |
966 | if (started && timeout_check(&timeout)) |
967 | break; | |
968 | ||
969 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_timeval(&timeout)); | |
76222ee5 | 970 | started = 1; |
63a17c64 ML |
971 | if (result < 0) { |
972 | if (errno == EINTR) { | |
973 | DEBUG("select() call was interrupted, repeating"); | |
974 | continue; | |
975 | } else { | |
976 | RETURN_FAIL("select() failed"); | |
977 | } | |
978 | } else if (result == 0) { | |
c3cee38c ML |
979 | /* Timeout has expired. */ |
980 | break; | |
e3dcf906 ML |
981 | } |
982 | ||
983 | /* Do write. */ | |
984 | result = write(port->fd, ptr, count - bytes_written); | |
985 | ||
986 | if (result < 0) { | |
987 | if (errno == EAGAIN) | |
988 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
989 | continue; | |
990 | else | |
991 | /* This is an actual failure. */ | |
992 | RETURN_FAIL("write() failed"); | |
993 | } | |
994 | ||
995 | bytes_written += result; | |
996 | ptr += result; | |
997 | } | |
998 | ||
c3cee38c ML |
999 | if (bytes_written < count) |
1000 | DEBUG("Write timed out"); | |
1001 | ||
9caa2e86 | 1002 | RETURN_INT(bytes_written); |
e3dcf906 ML |
1003 | #endif |
1004 | } | |
1005 | ||
970f279a AJ |
1006 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
1007 | const void *buf, size_t count) | |
74510d4b | 1008 | { |
c33efc48 ML |
1009 | TRACE("%p, %p, %d", port, buf, count); |
1010 | ||
dec10e31 | 1011 | CHECK_OPEN_PORT(); |
74510d4b ML |
1012 | |
1013 | if (!buf) | |
c33efc48 | 1014 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1015 | |
7890cef6 | 1016 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 1017 | |
a3cb91f5 | 1018 | if (count == 0) |
9caa2e86 | 1019 | RETURN_INT(0); |
a3cb91f5 | 1020 | |
74510d4b | 1021 | #ifdef _WIN32 |
39df7833 | 1022 | DWORD buf_bytes; |
f92f1f0c | 1023 | |
e3dcf906 ML |
1024 | /* Check whether previous write is complete. */ |
1025 | if (port->writing) { | |
1026 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
1027 | DEBUG("Previous write completed"); | |
1028 | port->writing = 0; | |
1029 | } else { | |
1030 | DEBUG("Previous write not complete"); | |
1031 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 1032 | RETURN_INT(0); |
a3cb91f5 | 1033 | } |
e3dcf906 | 1034 | } |
a3cb91f5 | 1035 | |
e3dcf906 | 1036 | /* Set timeout. */ |
27a58c05 ML |
1037 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
1038 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
1039 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1040 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1041 | } | |
e3dcf906 | 1042 | |
b457865b ML |
1043 | /* Reduce count if it exceeds the WriteFile limit. */ |
1044 | if (count > WRITEFILE_MAX_SIZE) | |
1045 | count = WRITEFILE_MAX_SIZE; | |
1046 | ||
39df7833 ML |
1047 | /* Copy data to our write buffer. */ |
1048 | buf_bytes = min(port->write_buf_size, count); | |
1049 | memcpy(port->write_buf, buf, buf_bytes); | |
1050 | ||
1051 | /* Start asynchronous write. */ | |
1052 | if (WriteFile(port->hdl, port->write_buf, buf_bytes, NULL, &port->write_ovl) == 0) { | |
1053 | if (GetLastError() == ERROR_IO_PENDING) { | |
1054 | if ((port->writing = !HasOverlappedIoCompleted(&port->write_ovl))) | |
1055 | DEBUG("Asynchronous write completed immediately"); | |
1056 | else | |
1057 | DEBUG("Asynchronous write running"); | |
e3dcf906 | 1058 | } else { |
39df7833 ML |
1059 | /* Actual failure of some kind. */ |
1060 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 ML |
1061 | } |
1062 | } | |
1063 | ||
9af8cff3 | 1064 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1065 | |
39df7833 | 1066 | RETURN_INT(buf_bytes); |
74510d4b ML |
1067 | #else |
1068 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1069 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1070 | |
55ab7e0b ML |
1071 | if (written < 0) { |
1072 | if (errno == EAGAIN) | |
1073 | // Buffer is full, no bytes written. | |
1074 | RETURN_INT(0); | |
1075 | else | |
1076 | RETURN_FAIL("write() failed"); | |
1077 | } else { | |
9caa2e86 | 1078 | RETURN_INT(written); |
55ab7e0b | 1079 | } |
74510d4b ML |
1080 | #endif |
1081 | } | |
1082 | ||
94a314a8 ML |
1083 | #ifdef _WIN32 |
1084 | /* Restart wait operation if buffer was emptied. */ | |
1085 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
1086 | { | |
8ebfaf89 ML |
1087 | DWORD errors; |
1088 | COMSTAT comstat; | |
94a314a8 | 1089 | |
21ae5ce1 ML |
1090 | if (bytes_read == 0) |
1091 | RETURN_OK(); | |
1092 | ||
8ebfaf89 ML |
1093 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
1094 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 1095 | |
8ebfaf89 | 1096 | if (comstat.cbInQue == 0) |
94a314a8 ML |
1097 | TRY(restart_wait(port)); |
1098 | ||
1099 | RETURN_OK(); | |
1100 | } | |
1101 | #endif | |
1102 | ||
970f279a | 1103 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 1104 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 1105 | { |
1b91c6ea | 1106 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
1107 | |
1108 | CHECK_OPEN_PORT(); | |
1109 | ||
1110 | if (!buf) | |
1111 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1112 | ||
1b91c6ea | 1113 | if (timeout_ms) |
7890cef6 | 1114 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 1115 | count, port->name, timeout_ms); |
e3dcf906 | 1116 | else |
7890cef6 ML |
1117 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
1118 | count, port->name); | |
e3dcf906 ML |
1119 | |
1120 | if (count == 0) | |
9caa2e86 | 1121 | RETURN_INT(0); |
e3dcf906 ML |
1122 | |
1123 | #ifdef _WIN32 | |
1124 | DWORD bytes_read = 0; | |
1125 | ||
1126 | /* Set timeout. */ | |
27a58c05 | 1127 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 1128 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1129 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
1130 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 1131 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1132 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
1133 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1134 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1135 | } | |
e3dcf906 ML |
1136 | |
1137 | /* Start read. */ | |
bbe566fe | 1138 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { |
e3dcf906 | 1139 | DEBUG("Read completed immediately"); |
6f1186aa | 1140 | bytes_read = count; |
bbe566fe ML |
1141 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1142 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
1143 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1144 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
1145 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
1146 | } else { | |
1147 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
1148 | } |
1149 | ||
94a314a8 | 1150 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1151 | |
9caa2e86 | 1152 | RETURN_INT(bytes_read); |
6f1186aa | 1153 | |
e3dcf906 ML |
1154 | #else |
1155 | size_t bytes_read = 0; | |
9a7945af | 1156 | unsigned char *ptr = (unsigned char *) buf; |
32dbe2d2 | 1157 | struct timeout timeout; |
76222ee5 | 1158 | int started = 0; |
e3dcf906 ML |
1159 | fd_set fds; |
1160 | int result; | |
1161 | ||
32dbe2d2 | 1162 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 1163 | |
772c5861 ML |
1164 | FD_ZERO(&fds); |
1165 | FD_SET(port->fd, &fds); | |
1166 | ||
e3dcf906 | 1167 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1168 | while (bytes_read < count) { |
76222ee5 ML |
1169 | /* |
1170 | * Check timeout only if we have run select() at least once, | |
1171 | * to avoid any issues if a short timeout is reached before | |
1172 | * select() is even run. | |
1173 | */ | |
32dbe2d2 ML |
1174 | if (started && timeout_check(&timeout)) |
1175 | /* Timeout has expired. */ | |
1176 | break; | |
1177 | ||
1178 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
76222ee5 | 1179 | started = 1; |
63a17c64 ML |
1180 | if (result < 0) { |
1181 | if (errno == EINTR) { | |
1182 | DEBUG("select() call was interrupted, repeating"); | |
1183 | continue; | |
1184 | } else { | |
1185 | RETURN_FAIL("select() failed"); | |
1186 | } | |
1187 | } else if (result == 0) { | |
c3cee38c ML |
1188 | /* Timeout has expired. */ |
1189 | break; | |
e3dcf906 ML |
1190 | } |
1191 | ||
1192 | /* Do read. */ | |
1193 | result = read(port->fd, ptr, count - bytes_read); | |
1194 | ||
1195 | if (result < 0) { | |
1196 | if (errno == EAGAIN) | |
76222ee5 ML |
1197 | /* |
1198 | * This shouldn't happen because we did a | |
1199 | * select() first, but handle anyway. | |
1200 | */ | |
e3dcf906 ML |
1201 | continue; |
1202 | else | |
1203 | /* This is an actual failure. */ | |
1204 | RETURN_FAIL("read() failed"); | |
1205 | } | |
1206 | ||
1207 | bytes_read += result; | |
1208 | ptr += result; | |
1209 | } | |
1210 | ||
c3cee38c ML |
1211 | if (bytes_read < count) |
1212 | DEBUG("Read timed out"); | |
1213 | ||
9caa2e86 | 1214 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1215 | #endif |
1216 | } | |
1217 | ||
e5c2630e ML |
1218 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1219 | size_t count, unsigned int timeout_ms) | |
1220 | { | |
1221 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1222 | ||
1223 | CHECK_OPEN_PORT(); | |
1224 | ||
1225 | if (!buf) | |
1226 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1227 | ||
1228 | if (count == 0) | |
1229 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1230 | ||
1231 | if (timeout_ms) | |
1232 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1233 | count, port->name, timeout_ms); | |
1234 | else | |
1235 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1236 | count, port->name); | |
1237 | ||
1238 | #ifdef _WIN32 | |
1239 | DWORD bytes_read = 0; | |
1240 | ||
1241 | /* If timeout_ms == 0, set maximum timeout. */ | |
1242 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1243 | ||
1244 | /* Set timeout. */ | |
1245 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1246 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1247 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1248 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1249 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1250 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1251 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1252 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1253 | } | |
1254 | ||
1255 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1256 | while (bytes_read == 0) { | |
1257 | /* Start read. */ | |
888fb45d | 1258 | if (ReadFile(port->hdl, buf, count, &bytes_read, &port->read_ovl)) { |
e5c2630e | 1259 | DEBUG("Read completed immediately"); |
e5c2630e ML |
1260 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1261 | DEBUG("Waiting for read to complete"); | |
1262 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1263 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1264 | if (bytes_read > 0) { | |
1265 | DEBUG("Read completed"); | |
1266 | } else if (timeout_ms > 0) { | |
1267 | DEBUG("Read timed out"); | |
1268 | break; | |
1269 | } else { | |
1270 | DEBUG("Restarting read"); | |
1271 | } | |
1272 | } else { | |
1273 | RETURN_FAIL("ReadFile() failed"); | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1278 | ||
1279 | RETURN_INT(bytes_read); | |
1280 | ||
1281 | #else | |
1282 | size_t bytes_read = 0; | |
32dbe2d2 | 1283 | struct timeout timeout; |
e5c2630e ML |
1284 | int started = 0; |
1285 | fd_set fds; | |
1286 | int result; | |
1287 | ||
32dbe2d2 | 1288 | timeout_start(&timeout, timeout_ms); |
e5c2630e ML |
1289 | |
1290 | FD_ZERO(&fds); | |
1291 | FD_SET(port->fd, &fds); | |
1292 | ||
1293 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1294 | while (bytes_read == 0) { | |
1295 | /* | |
1296 | * Check timeout only if we have run select() at least once, | |
1297 | * to avoid any issues if a short timeout is reached before | |
1298 | * select() is even run. | |
1299 | */ | |
32dbe2d2 ML |
1300 | if (started && timeout_check(&timeout)) |
1301 | /* Timeout has expired. */ | |
1302 | break; | |
1303 | ||
1304 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
e5c2630e ML |
1305 | started = 1; |
1306 | if (result < 0) { | |
1307 | if (errno == EINTR) { | |
1308 | DEBUG("select() call was interrupted, repeating"); | |
1309 | continue; | |
1310 | } else { | |
1311 | RETURN_FAIL("select() failed"); | |
1312 | } | |
1313 | } else if (result == 0) { | |
1314 | /* Timeout has expired. */ | |
1315 | break; | |
1316 | } | |
1317 | ||
1318 | /* Do read. */ | |
1319 | result = read(port->fd, buf, count); | |
1320 | ||
1321 | if (result < 0) { | |
1322 | if (errno == EAGAIN) | |
1323 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1324 | continue; | |
1325 | else | |
1326 | /* This is an actual failure. */ | |
1327 | RETURN_FAIL("read() failed"); | |
1328 | } | |
1329 | ||
1330 | bytes_read = result; | |
1331 | } | |
1332 | ||
1333 | if (bytes_read == 0) | |
1334 | DEBUG("Read timed out"); | |
1335 | ||
1336 | RETURN_INT(bytes_read); | |
1337 | #endif | |
1338 | } | |
1339 | ||
970f279a AJ |
1340 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1341 | size_t count) | |
74510d4b | 1342 | { |
c33efc48 ML |
1343 | TRACE("%p, %p, %d", port, buf, count); |
1344 | ||
dec10e31 | 1345 | CHECK_OPEN_PORT(); |
74510d4b ML |
1346 | |
1347 | if (!buf) | |
c33efc48 | 1348 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1349 | |
7890cef6 | 1350 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1351 | |
74510d4b | 1352 | #ifdef _WIN32 |
e3dcf906 | 1353 | DWORD bytes_read; |
f92f1f0c | 1354 | |
e3dcf906 | 1355 | /* Set timeout. */ |
27a58c05 | 1356 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1357 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1358 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1359 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1360 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1361 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1362 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1363 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1364 | } | |
e3dcf906 ML |
1365 | |
1366 | /* Do read. */ | |
1367 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
ae2c5825 ML |
1368 | if (GetLastError() != ERROR_IO_PENDING) |
1369 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1370 | |
1371 | /* Get number of bytes read. */ | |
ae2c5825 | 1372 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1373 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1374 | |
94a314a8 | 1375 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1376 | |
9caa2e86 | 1377 | RETURN_INT(bytes_read); |
74510d4b ML |
1378 | #else |
1379 | ssize_t bytes_read; | |
f92f1f0c | 1380 | |
74510d4b | 1381 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1382 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1383 | if (errno == EAGAIN) |
1384 | /* No bytes available. */ | |
33d5ff47 ML |
1385 | bytes_read = 0; |
1386 | else | |
1387 | /* This is an actual failure. */ | |
1388 | RETURN_FAIL("read() failed"); | |
1389 | } | |
9caa2e86 | 1390 | RETURN_INT(bytes_read); |
74510d4b ML |
1391 | #endif |
1392 | } | |
1393 | ||
970f279a | 1394 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1395 | { |
1396 | TRACE("%p", port); | |
1397 | ||
1398 | CHECK_OPEN_PORT(); | |
1399 | ||
7890cef6 | 1400 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1401 | |
1402 | #ifdef _WIN32 | |
1403 | DWORD errors; | |
1404 | COMSTAT comstat; | |
1405 | ||
1406 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1407 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1408 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1409 | #else |
1410 | int bytes_waiting; | |
1411 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1412 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1413 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1414 | #endif |
1415 | } | |
1416 | ||
970f279a | 1417 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1418 | { |
1419 | TRACE("%p", port); | |
1420 | ||
1421 | CHECK_OPEN_PORT(); | |
1422 | ||
7890cef6 | 1423 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1424 | |
1425 | #ifdef _WIN32 | |
1426 | DWORD errors; | |
1427 | COMSTAT comstat; | |
1428 | ||
1429 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1430 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1431 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1432 | #else |
1433 | int bytes_waiting; | |
1434 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1435 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1436 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1437 | #endif |
1438 | } | |
1439 | ||
970f279a | 1440 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1441 | { |
1442 | struct sp_event_set *result; | |
1443 | ||
1444 | TRACE("%p", result_ptr); | |
1445 | ||
1446 | if (!result_ptr) | |
1447 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1448 | ||
1449 | *result_ptr = NULL; | |
1450 | ||
1451 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1452 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1453 | ||
1454 | memset(result, 0, sizeof(struct sp_event_set)); | |
1455 | ||
1456 | *result_ptr = result; | |
1457 | ||
1458 | RETURN_OK(); | |
1459 | } | |
1460 | ||
1461 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1462 | event_handle handle, enum sp_event mask) | |
1463 | { | |
1464 | void *new_handles; | |
1465 | enum sp_event *new_masks; | |
1466 | ||
1467 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1468 | ||
1469 | if (!(new_handles = realloc(event_set->handles, | |
1470 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1471 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1472 | |
ac323d80 UH |
1473 | event_set->handles = new_handles; |
1474 | ||
6f1186aa | 1475 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1476 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1477 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1478 | |
6f1186aa ML |
1479 | event_set->masks = new_masks; |
1480 | ||
1481 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1482 | event_set->masks[event_set->count] = mask; | |
1483 | ||
1484 | event_set->count++; | |
1485 | ||
1486 | RETURN_OK(); | |
1487 | } | |
1488 | ||
970f279a | 1489 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1490 | const struct sp_port *port, enum sp_event mask) |
1491 | { | |
1492 | TRACE("%p, %p, %d", event_set, port, mask); | |
1493 | ||
1494 | if (!event_set) | |
1495 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1496 | ||
1497 | if (!port) | |
1498 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1499 | ||
1500 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1501 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1502 | ||
1503 | if (!mask) | |
1504 | RETURN_OK(); | |
1505 | ||
1506 | #ifdef _WIN32 | |
1507 | enum sp_event handle_mask; | |
1508 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1509 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1510 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1511 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1512 | #else | |
1513 | TRY(add_handle(event_set, port->fd, mask)); | |
1514 | #endif | |
1515 | ||
1516 | RETURN_OK(); | |
1517 | } | |
1518 | ||
970f279a | 1519 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1520 | { |
1521 | TRACE("%p", event_set); | |
1522 | ||
1523 | if (!event_set) { | |
1524 | DEBUG("Null event set"); | |
1525 | RETURN(); | |
1526 | } | |
1527 | ||
1528 | DEBUG("Freeing event set"); | |
1529 | ||
1530 | if (event_set->handles) | |
1531 | free(event_set->handles); | |
1532 | if (event_set->masks) | |
1533 | free(event_set->masks); | |
1534 | ||
1535 | free(event_set); | |
1536 | ||
1537 | RETURN(); | |
1538 | } | |
1539 | ||
970f279a | 1540 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1541 | unsigned int timeout_ms) |
6f1186aa | 1542 | { |
1b91c6ea | 1543 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1544 | |
1545 | if (!event_set) | |
1546 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1547 | ||
1548 | #ifdef _WIN32 | |
1549 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1550 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1551 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1552 | ||
1553 | RETURN_OK(); | |
1554 | #else | |
32dbe2d2 ML |
1555 | struct timeout timeout; |
1556 | int started = 0, result; | |
6f1186aa ML |
1557 | struct pollfd *pollfds; |
1558 | unsigned int i; | |
1559 | ||
1560 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1561 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1562 | ||
1563 | for (i = 0; i < event_set->count; i++) { | |
81243567 | 1564 | pollfds[i].fd = ((int *)event_set->handles)[i]; |
6f1186aa ML |
1565 | pollfds[i].events = 0; |
1566 | pollfds[i].revents = 0; | |
1567 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1568 | pollfds[i].events |= POLLIN; | |
1569 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1570 | pollfds[i].events |= POLLOUT; | |
1571 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1572 | pollfds[i].events |= POLLERR; | |
1573 | } | |
1574 | ||
32dbe2d2 | 1575 | timeout_start(&timeout, timeout_ms); |
08eb25f5 | 1576 | timeout_limit(&timeout, INT_MAX); |
6f1186aa ML |
1577 | |
1578 | /* Loop until an event occurs. */ | |
dc422c04 | 1579 | while (1) { |
76222ee5 ML |
1580 | /* |
1581 | * Check timeout only if we have run poll() at least once, | |
1582 | * to avoid any issues if a short timeout is reached before | |
1583 | * poll() is even run. | |
1584 | */ | |
32dbe2d2 ML |
1585 | if (started && timeout_check(&timeout)) { |
1586 | DEBUG("Wait timed out"); | |
1587 | break; | |
6f1186aa ML |
1588 | } |
1589 | ||
32dbe2d2 | 1590 | result = poll(pollfds, event_set->count, timeout_remaining_ms(&timeout)); |
76222ee5 | 1591 | started = 1; |
6f1186aa ML |
1592 | |
1593 | if (result < 0) { | |
1594 | if (errno == EINTR) { | |
1595 | DEBUG("poll() call was interrupted, repeating"); | |
1596 | continue; | |
1597 | } else { | |
1598 | free(pollfds); | |
1599 | RETURN_FAIL("poll() failed"); | |
1600 | } | |
1601 | } else if (result == 0) { | |
1602 | DEBUG("poll() timed out"); | |
32dbe2d2 | 1603 | if (!timeout.overflow) |
127d8d0c | 1604 | break; |
6f1186aa ML |
1605 | } else { |
1606 | DEBUG("poll() completed"); | |
1607 | break; | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | free(pollfds); | |
1612 | RETURN_OK(); | |
1613 | #endif | |
1614 | } | |
1615 | ||
5cea279a | 1616 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1617 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1618 | { | |
1619 | void *data; | |
1620 | ||
c33efc48 ML |
1621 | TRACE("%d, %p", fd, baudrate); |
1622 | ||
ea667be7 ML |
1623 | DEBUG("Getting baud rate"); |
1624 | ||
7a6d2196 | 1625 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1626 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1627 | |
8d43110a ML |
1628 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1629 | free(data); | |
dc422c04 | 1630 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1631 | } |
7a6d2196 ML |
1632 | |
1633 | *baudrate = get_termios_speed(data); | |
1634 | ||
8d43110a ML |
1635 | free(data); |
1636 | ||
c33efc48 | 1637 | RETURN_OK(); |
7a6d2196 ML |
1638 | } |
1639 | ||
1640 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1641 | { | |
1642 | void *data; | |
1643 | ||
c33efc48 ML |
1644 | TRACE("%d, %d", fd, baudrate); |
1645 | ||
ea667be7 ML |
1646 | DEBUG("Getting baud rate"); |
1647 | ||
7a6d2196 | 1648 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1649 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1650 | |
8d43110a ML |
1651 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1652 | free(data); | |
dc422c04 | 1653 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1654 | } |
7a6d2196 | 1655 | |
ea667be7 ML |
1656 | DEBUG("Setting baud rate"); |
1657 | ||
7a6d2196 ML |
1658 | set_termios_speed(data, baudrate); |
1659 | ||
8d43110a ML |
1660 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1661 | free(data); | |
dc422c04 | 1662 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1663 | } |
1664 | ||
1665 | free(data); | |
7a6d2196 | 1666 | |
c33efc48 | 1667 | RETURN_OK(); |
7a6d2196 | 1668 | } |
5cea279a | 1669 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1670 | |
1671 | #ifdef USE_TERMIOX | |
bd791fe1 | 1672 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1673 | { |
bd791fe1 | 1674 | void *termx; |
40978c2b | 1675 | |
bd791fe1 | 1676 | TRACE("%d, %p", fd, data); |
c33efc48 | 1677 | |
ea667be7 ML |
1678 | DEBUG("Getting advanced flow control"); |
1679 | ||
bd791fe1 | 1680 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1681 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1682 | |
bd791fe1 ML |
1683 | if (ioctl(fd, TCGETX, termx) < 0) { |
1684 | free(termx); | |
dc422c04 | 1685 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1686 | } |
40978c2b | 1687 | |
bd791fe1 ML |
1688 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1689 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1690 | |
bd791fe1 | 1691 | free(termx); |
8d43110a | 1692 | |
c33efc48 | 1693 | RETURN_OK(); |
40978c2b ML |
1694 | } |
1695 | ||
bd791fe1 | 1696 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1697 | { |
bd791fe1 | 1698 | void *termx; |
40978c2b | 1699 | |
bd791fe1 | 1700 | TRACE("%d, %p", fd, data); |
c33efc48 | 1701 | |
ea667be7 ML |
1702 | DEBUG("Getting advanced flow control"); |
1703 | ||
bd791fe1 | 1704 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1705 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1706 | |
bd791fe1 ML |
1707 | if (ioctl(fd, TCGETX, termx) < 0) { |
1708 | free(termx); | |
dc422c04 | 1709 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1710 | } |
40978c2b | 1711 | |
ea667be7 ML |
1712 | DEBUG("Setting advanced flow control"); |
1713 | ||
bd791fe1 ML |
1714 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1715 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1716 | |
bd791fe1 ML |
1717 | if (ioctl(fd, TCSETX, termx) < 0) { |
1718 | free(termx); | |
dc422c04 | 1719 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1720 | } |
1721 | ||
bd791fe1 | 1722 | free(termx); |
40978c2b | 1723 | |
c33efc48 | 1724 | RETURN_OK(); |
40978c2b ML |
1725 | } |
1726 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1727 | |
eb6ed20f ML |
1728 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1729 | struct sp_port_config *config) | |
8094e4a0 | 1730 | { |
da2748bf | 1731 | unsigned int i; |
cbf628c7 | 1732 | |
c33efc48 ML |
1733 | TRACE("%p, %p, %p", port, data, config); |
1734 | ||
7890cef6 | 1735 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1736 | |
8094e4a0 | 1737 | #ifdef _WIN32 |
e33ab9aa | 1738 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1739 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1740 | |
067417af | 1741 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1742 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1743 | config->baudrate = std_baudrates[i].value; |
1744 | break; | |
1745 | } | |
1746 | } | |
1747 | ||
1748 | if (i == NUM_STD_BAUDRATES) | |
1749 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1750 | config->baudrate = data->dcb.BaudRate; |
067417af | 1751 | |
e33ab9aa | 1752 | config->bits = data->dcb.ByteSize; |
067417af | 1753 | |
e33ab9aa ML |
1754 | if (data->dcb.fParity) |
1755 | switch (data->dcb.Parity) { | |
067417af ML |
1756 | case NOPARITY: |
1757 | config->parity = SP_PARITY_NONE; | |
1758 | break; | |
e432ce60 ML |
1759 | case ODDPARITY: |
1760 | config->parity = SP_PARITY_ODD; | |
1761 | break; | |
067417af ML |
1762 | case EVENPARITY: |
1763 | config->parity = SP_PARITY_EVEN; | |
1764 | break; | |
e432ce60 ML |
1765 | case MARKPARITY: |
1766 | config->parity = SP_PARITY_MARK; | |
1767 | break; | |
1768 | case SPACEPARITY: | |
1769 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1770 | break; |
1771 | default: | |
1772 | config->parity = -1; | |
1773 | } | |
1774 | else | |
1775 | config->parity = SP_PARITY_NONE; | |
1776 | ||
e33ab9aa | 1777 | switch (data->dcb.StopBits) { |
067417af ML |
1778 | case ONESTOPBIT: |
1779 | config->stopbits = 1; | |
1780 | break; | |
1781 | case TWOSTOPBITS: | |
1782 | config->stopbits = 2; | |
1783 | break; | |
1784 | default: | |
1785 | config->stopbits = -1; | |
1786 | } | |
1787 | ||
e33ab9aa | 1788 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1789 | case RTS_CONTROL_DISABLE: |
1790 | config->rts = SP_RTS_OFF; | |
1791 | break; | |
1792 | case RTS_CONTROL_ENABLE: | |
1793 | config->rts = SP_RTS_ON; | |
1794 | break; | |
1795 | case RTS_CONTROL_HANDSHAKE: | |
1796 | config->rts = SP_RTS_FLOW_CONTROL; | |
1797 | break; | |
1798 | default: | |
1799 | config->rts = -1; | |
067417af ML |
1800 | } |
1801 | ||
e33ab9aa | 1802 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1803 | |
e33ab9aa | 1804 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1805 | case DTR_CONTROL_DISABLE: |
1806 | config->dtr = SP_DTR_OFF; | |
1807 | break; | |
1808 | case DTR_CONTROL_ENABLE: | |
1809 | config->dtr = SP_DTR_ON; | |
1810 | break; | |
1811 | case DTR_CONTROL_HANDSHAKE: | |
1812 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1813 | break; | |
1814 | default: | |
1815 | config->dtr = -1; | |
067417af ML |
1816 | } |
1817 | ||
e33ab9aa ML |
1818 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1819 | ||
c6754b45 ML |
1820 | if (data->dcb.fInX) { |
1821 | if (data->dcb.fOutX) | |
1822 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1823 | else | |
1824 | config->xon_xoff = SP_XONXOFF_IN; | |
1825 | } else { | |
1826 | if (data->dcb.fOutX) | |
1827 | config->xon_xoff = SP_XONXOFF_OUT; | |
1828 | else | |
1829 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1830 | } | |
1831 | ||
e33ab9aa ML |
1832 | #else // !_WIN32 |
1833 | ||
1834 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1835 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1836 | |
1837 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1838 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1839 | |
1840 | #ifdef USE_TERMIOX | |
bd791fe1 | 1841 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1842 | |
1843 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1844 | data->termiox_supported = 0; | |
1845 | else if (ret < 0) | |
c33efc48 | 1846 | RETURN_CODEVAL(ret); |
68ec29db ML |
1847 | else |
1848 | data->termiox_supported = 1; | |
1849 | #else | |
1850 | data->termiox_supported = 0; | |
40978c2b ML |
1851 | #endif |
1852 | ||
067417af | 1853 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1854 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1855 | config->baudrate = std_baudrates[i].value; |
1856 | break; | |
1857 | } | |
1858 | } | |
1859 | ||
31b3a8f5 MH |
1860 | if (i == NUM_STD_BAUDRATES) { |
1861 | #ifdef __APPLE__ | |
1862 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1863 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1864 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1865 | #else |
067417af | 1866 | config->baudrate = -1; |
31b3a8f5 MH |
1867 | #endif |
1868 | } | |
067417af | 1869 | |
e33ab9aa | 1870 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1871 | case CS8: |
1872 | config->bits = 8; | |
1873 | break; | |
1874 | case CS7: | |
1875 | config->bits = 7; | |
1876 | break; | |
1877 | case CS6: | |
1878 | config->bits = 6; | |
1879 | break; | |
1880 | case CS5: | |
1881 | config->bits = 5; | |
1882 | break; | |
1883 | default: | |
1884 | config->bits = -1; | |
1885 | } | |
1886 | ||
e33ab9aa | 1887 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1888 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1889 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1890 | config->parity = -1; |
c3e05092 | 1891 | #ifdef CMSPAR |
e432ce60 ML |
1892 | else if (data->term.c_cflag & CMSPAR) |
1893 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1894 | #endif |
067417af | 1895 | else |
e33ab9aa | 1896 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1897 | |
e33ab9aa | 1898 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1899 | |
e33ab9aa | 1900 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1901 | config->rts = SP_RTS_FLOW_CONTROL; |
1902 | config->cts = SP_CTS_FLOW_CONTROL; | |
1903 | } else { | |
bd791fe1 | 1904 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1905 | config->rts = SP_RTS_FLOW_CONTROL; |
1906 | else | |
1907 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1908 | ||
bd791fe1 | 1909 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1910 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1911 | } |
1912 | ||
bd791fe1 | 1913 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1914 | config->dtr = SP_DTR_FLOW_CONTROL; |
1915 | else | |
1916 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1917 | ||
bd791fe1 | 1918 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1919 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1920 | |
e29b93a5 ML |
1921 | if (data->term.c_iflag & IXOFF) { |
1922 | if (data->term.c_iflag & IXON) | |
1923 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1924 | else | |
1925 | config->xon_xoff = SP_XONXOFF_IN; | |
1926 | } else { | |
1927 | if (data->term.c_iflag & IXON) | |
1928 | config->xon_xoff = SP_XONXOFF_OUT; | |
1929 | else | |
1930 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1931 | } | |
067417af ML |
1932 | #endif |
1933 | ||
c33efc48 | 1934 | RETURN_OK(); |
067417af ML |
1935 | } |
1936 | ||
7a6d2196 | 1937 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1938 | const struct sp_port_config *config) |
18fc2dd1 | 1939 | { |
e33ab9aa | 1940 | unsigned int i; |
31b3a8f5 MH |
1941 | #ifdef __APPLE__ |
1942 | BAUD_TYPE baud_nonstd; | |
1943 | ||
1944 | baud_nonstd = B0; | |
1945 | #endif | |
5cea279a | 1946 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1947 | int baud_nonstd = 0; |
1948 | #endif | |
18fc2dd1 | 1949 | |
c33efc48 ML |
1950 | TRACE("%p, %p, %p", port, data, config); |
1951 | ||
7890cef6 | 1952 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1953 | |
e33ab9aa | 1954 | #ifdef _WIN32 |
6bd6a8b5 ML |
1955 | |
1956 | TRY(await_write_completion(port)); | |
1957 | ||
eac329d2 | 1958 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1959 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1960 | if (config->baudrate == std_baudrates[i].value) { | |
1961 | data->dcb.BaudRate = std_baudrates[i].index; | |
1962 | break; | |
1963 | } | |
1964 | } | |
18fc2dd1 | 1965 | |
e33ab9aa ML |
1966 | if (i == NUM_STD_BAUDRATES) |
1967 | data->dcb.BaudRate = config->baudrate; | |
39df7833 ML |
1968 | |
1969 | /* Allocate write buffer for 50ms of data at baud rate. */ | |
1970 | port->write_buf_size = max(config->baudrate / (8 * 20), 1); | |
1971 | port->write_buf = realloc(port->write_buf, | |
1972 | port->write_buf_size); | |
1973 | ||
1974 | if (!port->write_buf) | |
1975 | RETURN_ERROR(SP_ERR_MEM, "Allocating write buffer failed"); | |
e33ab9aa | 1976 | } |
18fc2dd1 | 1977 | |
e33ab9aa ML |
1978 | if (config->bits >= 0) |
1979 | data->dcb.ByteSize = config->bits; | |
1980 | ||
1981 | if (config->parity >= 0) { | |
1982 | switch (config->parity) { | |
e33ab9aa ML |
1983 | case SP_PARITY_NONE: |
1984 | data->dcb.Parity = NOPARITY; | |
1985 | break; | |
e432ce60 ML |
1986 | case SP_PARITY_ODD: |
1987 | data->dcb.Parity = ODDPARITY; | |
1988 | break; | |
e33ab9aa ML |
1989 | case SP_PARITY_EVEN: |
1990 | data->dcb.Parity = EVENPARITY; | |
1991 | break; | |
e432ce60 ML |
1992 | case SP_PARITY_MARK: |
1993 | data->dcb.Parity = MARKPARITY; | |
1994 | break; | |
1995 | case SP_PARITY_SPACE: | |
1996 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1997 | break; |
1998 | default: | |
c33efc48 | 1999 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 2000 | } |
18fc2dd1 ML |
2001 | } |
2002 | ||
e33ab9aa ML |
2003 | if (config->stopbits >= 0) { |
2004 | switch (config->stopbits) { | |
2005 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
2006 | case 1: | |
2007 | data->dcb.StopBits = ONESTOPBIT; | |
2008 | break; | |
2009 | case 2: | |
2010 | data->dcb.StopBits = TWOSTOPBITS; | |
2011 | break; | |
2012 | default: | |
c33efc48 | 2013 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
2014 | } |
2015 | } | |
2016 | ||
2017 | if (config->rts >= 0) { | |
2018 | switch (config->rts) { | |
2019 | case SP_RTS_OFF: | |
2020 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
2021 | break; | |
2022 | case SP_RTS_ON: | |
2023 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
2024 | break; | |
2025 | case SP_RTS_FLOW_CONTROL: | |
2026 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
2027 | break; | |
2028 | default: | |
c33efc48 | 2029 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
2030 | } |
2031 | } | |
2032 | ||
2033 | if (config->cts >= 0) { | |
2034 | switch (config->cts) { | |
2035 | case SP_CTS_IGNORE: | |
2036 | data->dcb.fOutxCtsFlow = FALSE; | |
2037 | break; | |
2038 | case SP_CTS_FLOW_CONTROL: | |
2039 | data->dcb.fOutxCtsFlow = TRUE; | |
2040 | break; | |
2041 | default: | |
c33efc48 | 2042 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
2043 | } |
2044 | } | |
2045 | ||
2046 | if (config->dtr >= 0) { | |
2047 | switch (config->dtr) { | |
2048 | case SP_DTR_OFF: | |
2049 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
2050 | break; | |
2051 | case SP_DTR_ON: | |
2052 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
2053 | break; | |
2054 | case SP_DTR_FLOW_CONTROL: | |
2055 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
2056 | break; | |
2057 | default: | |
c33efc48 | 2058 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
2059 | } |
2060 | } | |
2061 | ||
2062 | if (config->dsr >= 0) { | |
2063 | switch (config->dsr) { | |
2064 | case SP_DSR_IGNORE: | |
2065 | data->dcb.fOutxDsrFlow = FALSE; | |
2066 | break; | |
2067 | case SP_DSR_FLOW_CONTROL: | |
2068 | data->dcb.fOutxDsrFlow = TRUE; | |
2069 | break; | |
2070 | default: | |
c33efc48 | 2071 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 2072 | } |
18fc2dd1 ML |
2073 | } |
2074 | ||
e33ab9aa ML |
2075 | if (config->xon_xoff >= 0) { |
2076 | switch (config->xon_xoff) { | |
2077 | case SP_XONXOFF_DISABLED: | |
2078 | data->dcb.fInX = FALSE; | |
2079 | data->dcb.fOutX = FALSE; | |
2080 | break; | |
2081 | case SP_XONXOFF_IN: | |
2082 | data->dcb.fInX = TRUE; | |
2083 | data->dcb.fOutX = FALSE; | |
2084 | break; | |
2085 | case SP_XONXOFF_OUT: | |
2086 | data->dcb.fInX = FALSE; | |
2087 | data->dcb.fOutX = TRUE; | |
2088 | break; | |
2089 | case SP_XONXOFF_INOUT: | |
2090 | data->dcb.fInX = TRUE; | |
2091 | data->dcb.fOutX = TRUE; | |
2092 | break; | |
2093 | default: | |
c33efc48 | 2094 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2095 | } |
2096 | } | |
2097 | ||
2098 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 2099 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 2100 | |
31b3a8f5 | 2101 | #else /* !_WIN32 */ |
e33ab9aa | 2102 | |
7a6d2196 ML |
2103 | int controlbits; |
2104 | ||
eac329d2 | 2105 | if (config->baudrate >= 0) { |
e33ab9aa ML |
2106 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
2107 | if (config->baudrate == std_baudrates[i].value) { | |
2108 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2109 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
2110 | |
2111 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2112 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
2113 | break; |
2114 | } | |
2115 | } | |
2116 | ||
31b3a8f5 MH |
2117 | /* Non-standard baud rate */ |
2118 | if (i == NUM_STD_BAUDRATES) { | |
2119 | #ifdef __APPLE__ | |
24abdb68 | 2120 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2121 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2122 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2123 | baud_nonstd = config->baudrate; |
5cea279a | 2124 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2125 | baud_nonstd = 1; |
31b3a8f5 | 2126 | #else |
c33efc48 | 2127 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2128 | #endif |
2129 | } | |
e33ab9aa ML |
2130 | } |
2131 | ||
2132 | if (config->bits >= 0) { | |
2133 | data->term.c_cflag &= ~CSIZE; | |
2134 | switch (config->bits) { | |
2135 | case 8: | |
2136 | data->term.c_cflag |= CS8; | |
2137 | break; | |
2138 | case 7: | |
2139 | data->term.c_cflag |= CS7; | |
2140 | break; | |
2141 | case 6: | |
2142 | data->term.c_cflag |= CS6; | |
2143 | break; | |
23922313 UH |
2144 | case 5: |
2145 | data->term.c_cflag |= CS5; | |
2146 | break; | |
e33ab9aa | 2147 | default: |
c33efc48 | 2148 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2149 | } |
2150 | } | |
2151 | ||
2152 | if (config->parity >= 0) { | |
2153 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2154 | data->term.c_cflag &= ~(PARENB | PARODD); |
2155 | #ifdef CMSPAR | |
2156 | data->term.c_cflag &= ~CMSPAR; | |
2157 | #endif | |
e33ab9aa ML |
2158 | switch (config->parity) { |
2159 | case SP_PARITY_NONE: | |
2160 | data->term.c_iflag |= IGNPAR; | |
2161 | break; | |
2162 | case SP_PARITY_EVEN: | |
2163 | data->term.c_cflag |= PARENB; | |
2164 | break; | |
2165 | case SP_PARITY_ODD: | |
2166 | data->term.c_cflag |= PARENB | PARODD; | |
2167 | break; | |
afb518f0 | 2168 | #ifdef CMSPAR |
e432ce60 | 2169 | case SP_PARITY_MARK: |
c3e05092 | 2170 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2171 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2172 | break; |
2173 | case SP_PARITY_SPACE: | |
c3e05092 | 2174 | data->term.c_cflag |= PARENB; |
c3e05092 | 2175 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2176 | break; |
afb518f0 ML |
2177 | #else |
2178 | case SP_PARITY_MARK: | |
2179 | case SP_PARITY_SPACE: | |
2180 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2181 | #endif | |
e33ab9aa | 2182 | default: |
c33efc48 | 2183 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2184 | } |
2185 | } | |
2186 | ||
2187 | if (config->stopbits >= 0) { | |
2188 | data->term.c_cflag &= ~CSTOPB; | |
2189 | switch (config->stopbits) { | |
2190 | case 1: | |
2191 | data->term.c_cflag &= ~CSTOPB; | |
2192 | break; | |
2193 | case 2: | |
2194 | data->term.c_cflag |= CSTOPB; | |
2195 | break; | |
2196 | default: | |
c33efc48 | 2197 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2198 | } |
2199 | } | |
2200 | ||
eac329d2 | 2201 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2202 | if (data->termiox_supported) { |
bd791fe1 | 2203 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2204 | switch (config->rts) { |
2205 | case SP_RTS_OFF: | |
2206 | case SP_RTS_ON: | |
2207 | controlbits = TIOCM_RTS; | |
2208 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2209 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2210 | break; |
2211 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2212 | data->rts_flow = 1; |
68ec29db ML |
2213 | break; |
2214 | default: | |
2215 | break; | |
e33ab9aa | 2216 | } |
68ec29db | 2217 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2218 | data->cts_flow = 1; |
e33ab9aa | 2219 | |
bd791fe1 | 2220 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2221 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2222 | else |
2223 | data->term.c_iflag &= ~CRTSCTS; | |
2224 | } else { | |
2225 | /* Asymmetric use of RTS/CTS not supported. */ | |
2226 | if (data->term.c_iflag & CRTSCTS) { | |
2227 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2228 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2229 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2230 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2231 | } |
2232 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2233 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2234 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2235 | } |
e33ab9aa | 2236 | } else { |
68ec29db ML |
2237 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2238 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2239 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2240 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2241 | } |
2242 | ||
2243 | if (config->rts >= 0) { | |
2244 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2245 | data->term.c_iflag |= CRTSCTS; | |
2246 | } else { | |
2247 | controlbits = TIOCM_RTS; | |
2248 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2249 | &controlbits) < 0) | |
c33efc48 | 2250 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2251 | } |
e33ab9aa ML |
2252 | } |
2253 | } | |
2254 | } | |
2255 | ||
eac329d2 | 2256 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2257 | if (data->termiox_supported) { |
bd791fe1 | 2258 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2259 | switch (config->dtr) { |
2260 | case SP_DTR_OFF: | |
2261 | case SP_DTR_ON: | |
2262 | controlbits = TIOCM_DTR; | |
2263 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2264 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2265 | break; |
2266 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2267 | data->dtr_flow = 1; |
68ec29db ML |
2268 | break; |
2269 | default: | |
2270 | break; | |
2271 | } | |
2272 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2273 | data->dsr_flow = 1; |
68ec29db ML |
2274 | } else { |
2275 | /* DTR/DSR flow control not supported. */ | |
2276 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2277 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2278 | |
68ec29db ML |
2279 | if (config->dtr >= 0) { |
2280 | controlbits = TIOCM_DTR; | |
2281 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2282 | &controlbits) < 0) | |
c33efc48 | 2283 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2284 | } |
e33ab9aa ML |
2285 | } |
2286 | } | |
2287 | ||
2288 | if (config->xon_xoff >= 0) { | |
2289 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2290 | switch (config->xon_xoff) { | |
2291 | case SP_XONXOFF_DISABLED: | |
2292 | break; | |
2293 | case SP_XONXOFF_IN: | |
2294 | data->term.c_iflag |= IXOFF; | |
2295 | break; | |
2296 | case SP_XONXOFF_OUT: | |
2297 | data->term.c_iflag |= IXON | IXANY; | |
2298 | break; | |
2299 | case SP_XONXOFF_INOUT: | |
2300 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2301 | break; | |
2302 | default: | |
c33efc48 | 2303 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2304 | } |
2305 | } | |
2306 | ||
3f5c06d0 | 2307 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2308 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2309 | |
2310 | #ifdef __APPLE__ | |
2311 | if (baud_nonstd != B0) { | |
2312 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2313 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2314 | /* |
2315 | * Set baud rates in data->term to correct, but incompatible | |
2316 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2317 | */ | |
31b3a8f5 | 2318 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2319 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2320 | } |
7a6d2196 | 2321 | #elif defined(__linux__) |
5cea279a | 2322 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2323 | if (baud_nonstd) |
2324 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2325 | #endif |
40978c2b | 2326 | #ifdef USE_TERMIOX |
68ec29db | 2327 | if (data->termiox_supported) |
bd791fe1 | 2328 | TRY(set_flow(port->fd, data)); |
40978c2b | 2329 | #endif |
7a6d2196 | 2330 | #endif |
31b3a8f5 MH |
2331 | |
2332 | #endif /* !_WIN32 */ | |
e33ab9aa | 2333 | |
c33efc48 | 2334 | RETURN_OK(); |
e33ab9aa ML |
2335 | } |
2336 | ||
970f279a | 2337 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2338 | { |
59131d60 | 2339 | struct sp_port_config *config; |
9b1502ef | 2340 | |
00d8c56d UH |
2341 | TRACE("%p", config_ptr); |
2342 | ||
9b1502ef ML |
2343 | if (!config_ptr) |
2344 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2345 | ||
59131d60 ML |
2346 | *config_ptr = NULL; |
2347 | ||
2348 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2349 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2350 | |
59131d60 ML |
2351 | config->baudrate = -1; |
2352 | config->bits = -1; | |
2353 | config->parity = -1; | |
2354 | config->stopbits = -1; | |
2355 | config->rts = -1; | |
2356 | config->cts = -1; | |
2357 | config->dtr = -1; | |
2358 | config->dsr = -1; | |
2359 | ||
2360 | *config_ptr = config; | |
2361 | ||
9b1502ef ML |
2362 | RETURN_OK(); |
2363 | } | |
2364 | ||
970f279a | 2365 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2366 | { |
2367 | TRACE("%p", config); | |
2368 | ||
2369 | if (!config) | |
2370 | DEBUG("Null config"); | |
2371 | else | |
2372 | free(config); | |
2373 | ||
2374 | RETURN(); | |
2375 | } | |
2376 | ||
970f279a AJ |
2377 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2378 | struct sp_port_config *config) | |
70cd37de ML |
2379 | { |
2380 | struct port_data data; | |
2381 | ||
2382 | TRACE("%p, %p", port, config); | |
2383 | ||
2384 | CHECK_OPEN_PORT(); | |
2385 | ||
2386 | if (!config) | |
9b1502ef | 2387 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2388 | |
2389 | TRY(get_config(port, &data, config)); | |
2390 | ||
2391 | RETURN_OK(); | |
2392 | } | |
2393 | ||
970f279a AJ |
2394 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2395 | const struct sp_port_config *config) | |
e33ab9aa | 2396 | { |
8f189c4c | 2397 | struct port_data data; |
e33ab9aa ML |
2398 | struct sp_port_config prev_config; |
2399 | ||
c33efc48 ML |
2400 | TRACE("%p, %p", port, config); |
2401 | ||
dec10e31 | 2402 | CHECK_OPEN_PORT(); |
823690ae ML |
2403 | |
2404 | if (!config) | |
c33efc48 | 2405 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2406 | |
e33ab9aa ML |
2407 | TRY(get_config(port, &data, &prev_config)); |
2408 | TRY(set_config(port, &data, config)); | |
74510d4b | 2409 | |
c33efc48 | 2410 | RETURN_OK(); |
74510d4b ML |
2411 | } |
2412 | ||
9b1502ef | 2413 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2414 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2415 | struct port_data data; \ |
e33ab9aa | 2416 | struct sp_port_config config; \ |
c33efc48 | 2417 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2418 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2419 | TRY(get_config(port, &data, &config)); \ |
2420 | config.x = x; \ | |
2421 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2422 | RETURN_OK(); \ |
9b1502ef | 2423 | } \ |
970f279a AJ |
2424 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2425 | type *x) { \ | |
00d8c56d | 2426 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2427 | if (!x) \ |
2428 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2429 | if (!config) \ |
2430 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2431 | *x = config->x; \ | |
2432 | RETURN_OK(); \ | |
2433 | } \ | |
970f279a AJ |
2434 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2435 | type x) { \ | |
9b1502ef ML |
2436 | TRACE("%p, %d", config, x); \ |
2437 | if (!config) \ | |
2438 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2439 | config->x = x; \ | |
2440 | RETURN_OK(); \ | |
9069c2fb ML |
2441 | } |
2442 | ||
9b1502ef ML |
2443 | CREATE_ACCESSORS(baudrate, int) |
2444 | CREATE_ACCESSORS(bits, int) | |
2445 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2446 | CREATE_ACCESSORS(stopbits, int) | |
2447 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2448 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2449 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2450 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2451 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2452 | ||
970f279a AJ |
2453 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2454 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2455 | { |
9b1502ef ML |
2456 | if (!config) |
2457 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2458 | |
2459 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2460 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2461 | |
e33ab9aa | 2462 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2463 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2464 | else |
9b1502ef | 2465 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2466 | |
2467 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2468 | config->rts = SP_RTS_FLOW_CONTROL; |
2469 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2470 | } else { |
9b1502ef ML |
2471 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2472 | config->rts = SP_RTS_ON; | |
2473 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2474 | } |
2475 | ||
2476 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2477 | config->dtr = SP_DTR_FLOW_CONTROL; |
2478 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2479 | } else { |
9b1502ef ML |
2480 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2481 | config->dtr = SP_DTR_ON; | |
2482 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2483 | } |
2484 | ||
9b1502ef ML |
2485 | RETURN_OK(); |
2486 | } | |
2487 | ||
970f279a AJ |
2488 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2489 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2490 | { |
2491 | struct port_data data; | |
2492 | struct sp_port_config config; | |
2493 | ||
2494 | TRACE("%p, %d", port, flowcontrol); | |
2495 | ||
2496 | CHECK_OPEN_PORT(); | |
2497 | ||
2498 | TRY(get_config(port, &data, &config)); | |
2499 | ||
2500 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2501 | ||
e33ab9aa ML |
2502 | TRY(set_config(port, &data, &config)); |
2503 | ||
c33efc48 | 2504 | RETURN_OK(); |
e33ab9aa ML |
2505 | } |
2506 | ||
970f279a AJ |
2507 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2508 | enum sp_signal *signals) | |
8cf7c697 | 2509 | { |
c33efc48 ML |
2510 | TRACE("%p, %p", port, signals); |
2511 | ||
dec10e31 | 2512 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2513 | |
2514 | if (!signals) | |
c33efc48 | 2515 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2516 | |
7890cef6 | 2517 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2518 | |
8cf7c697 ML |
2519 | *signals = 0; |
2520 | #ifdef _WIN32 | |
2521 | DWORD bits; | |
2522 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2523 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2524 | if (bits & MS_CTS_ON) |
2525 | *signals |= SP_SIG_CTS; | |
2526 | if (bits & MS_DSR_ON) | |
2527 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2528 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2529 | *signals |= SP_SIG_DCD; |
2530 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2531 | *signals |= SP_SIG_RI; |
2532 | #else | |
2533 | int bits; | |
2534 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2535 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2536 | if (bits & TIOCM_CTS) |
2537 | *signals |= SP_SIG_CTS; | |
2538 | if (bits & TIOCM_DSR) | |
2539 | *signals |= SP_SIG_DSR; | |
2540 | if (bits & TIOCM_CAR) | |
2541 | *signals |= SP_SIG_DCD; | |
2542 | if (bits & TIOCM_RNG) | |
2543 | *signals |= SP_SIG_RI; | |
2544 | #endif | |
c33efc48 | 2545 | RETURN_OK(); |
8cf7c697 ML |
2546 | } |
2547 | ||
970f279a | 2548 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2549 | { |
c33efc48 ML |
2550 | TRACE("%p", port); |
2551 | ||
dec10e31 | 2552 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2553 | #ifdef _WIN32 |
2554 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2555 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2556 | #else |
2557 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2558 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2559 | #endif |
2560 | ||
c33efc48 | 2561 | RETURN_OK(); |
90cc3ee6 ML |
2562 | } |
2563 | ||
970f279a | 2564 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2565 | { |
c33efc48 ML |
2566 | TRACE("%p", port); |
2567 | ||
dec10e31 | 2568 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2569 | #ifdef _WIN32 |
2570 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2571 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2572 | #else |
2573 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2574 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2575 | #endif |
2576 | ||
c33efc48 | 2577 | RETURN_OK(); |
90cc3ee6 ML |
2578 | } |
2579 | ||
970f279a | 2580 | SP_API int sp_last_error_code(void) |
74510d4b | 2581 | { |
7890cef6 | 2582 | TRACE_VOID(); |
74510d4b | 2583 | #ifdef _WIN32 |
9caa2e86 | 2584 | RETURN_INT(GetLastError()); |
74510d4b | 2585 | #else |
9caa2e86 | 2586 | RETURN_INT(errno); |
74510d4b ML |
2587 | #endif |
2588 | } | |
2589 | ||
970f279a | 2590 | SP_API char *sp_last_error_message(void) |
74510d4b | 2591 | { |
7890cef6 | 2592 | TRACE_VOID(); |
c33efc48 | 2593 | |
74510d4b | 2594 | #ifdef _WIN32 |
9a0c4bbd | 2595 | TCHAR *message; |
74510d4b ML |
2596 | DWORD error = GetLastError(); |
2597 | ||
9a0c4bbd | 2598 | DWORD length = FormatMessage( |
74510d4b ML |
2599 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2600 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2601 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2602 | NULL, | |
2603 | error, | |
2604 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2605 | (LPTSTR) &message, | |
2606 | 0, NULL ); | |
2607 | ||
9a0c4bbd ML |
2608 | if (length >= 2 && message[length - 2] == '\r') |
2609 | message[length - 2] = '\0'; | |
2610 | ||
9caa2e86 | 2611 | RETURN_STRING(message); |
74510d4b | 2612 | #else |
9caa2e86 | 2613 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2614 | #endif |
2615 | } | |
2616 | ||
970f279a | 2617 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2618 | { |
c33efc48 ML |
2619 | TRACE("%s", message); |
2620 | ||
74510d4b ML |
2621 | #ifdef _WIN32 |
2622 | LocalFree(message); | |
64eec30d ML |
2623 | #else |
2624 | (void)message; | |
74510d4b | 2625 | #endif |
c33efc48 ML |
2626 | |
2627 | RETURN(); | |
74510d4b | 2628 | } |
863b35e6 | 2629 | |
970f279a | 2630 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2631 | { |
c33efc48 ML |
2632 | TRACE("%p", handler); |
2633 | ||
863b35e6 | 2634 | sp_debug_handler = handler; |
c33efc48 ML |
2635 | |
2636 | RETURN(); | |
863b35e6 ML |
2637 | } |
2638 | ||
970f279a | 2639 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2640 | { |
2641 | va_list args; | |
2642 | va_start(args, format); | |
2643 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2644 | fputs("sp: ", stderr); |
863b35e6 ML |
2645 | vfprintf(stderr, format, args); |
2646 | } | |
2647 | va_end(args); | |
2648 | } | |
524b0e14 | 2649 | |
970f279a | 2650 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2651 | { |
2652 | return SP_PACKAGE_VERSION_MAJOR; | |
2653 | } | |
2654 | ||
970f279a | 2655 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2656 | { |
2657 | return SP_PACKAGE_VERSION_MINOR; | |
2658 | } | |
2659 | ||
970f279a | 2660 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2661 | { |
2662 | return SP_PACKAGE_VERSION_MICRO; | |
2663 | } | |
2664 | ||
970f279a | 2665 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2666 | { |
2667 | return SP_PACKAGE_VERSION_STRING; | |
2668 | } | |
2669 | ||
970f279a | 2670 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2671 | { |
2672 | return SP_LIB_VERSION_CURRENT; | |
2673 | } | |
2674 | ||
970f279a | 2675 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2676 | { |
2677 | return SP_LIB_VERSION_REVISION; | |
2678 | } | |
2679 | ||
970f279a | 2680 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2681 | { |
2682 | return SP_LIB_VERSION_AGE; | |
2683 | } | |
2684 | ||
970f279a | 2685 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2686 | { |
2687 | return SP_LIB_VERSION_STRING; | |
2688 | } | |
2689 | ||
2690 | /** @} */ |