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Commit | Line | Data |
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74510d4b ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
f77bb46d ML |
5 | * Copyright (C) 2010-2015 Uwe Hermann <uwe@hermann-uwe.de> |
6 | * Copyright (C) 2013-2015 Martin Ling <martin-libserialport@earth.li> | |
31b3a8f5 | 7 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> |
a93fb468 | 8 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> |
74510d4b ML |
9 | * |
10 | * This program is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU Lesser General Public License as | |
12 | * published by the Free Software Foundation, either version 3 of the | |
13 | * License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public License | |
21 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
1a584c45 | 24 | #include <config.h> |
f6a1fb65 | 25 | #include "libserialport.h" |
e33dcf90 | 26 | #include "libserialport_internal.h" |
da2748bf | 27 | |
6c6aebe7 | 28 | static const struct std_baudrate std_baudrates[] = { |
da2748bf ML |
29 | #ifdef _WIN32 |
30 | /* | |
31 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
32 | * have documented CBR_* macros. | |
33 | */ | |
34 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
35 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 36 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 37 | #else |
eac329d2 UH |
38 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
39 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
40 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
41 | BAUD(230400), | |
da2748bf | 42 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 43 | BAUD(460800), |
da2748bf ML |
44 | #endif |
45 | #endif | |
46 | }; | |
47 | ||
6c6aebe7 UH |
48 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) |
49 | ||
863b35e6 ML |
50 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
51 | ||
eb6ed20f ML |
52 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
53 | struct sp_port_config *config); | |
e33dcf90 | 54 | |
eb6ed20f ML |
55 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
56 | const struct sp_port_config *config); | |
80186526 | 57 | |
bd0fb609 | 58 | #ifndef _WIN32 |
9a7945af ML |
59 | |
60 | /* Timing abstraction */ | |
61 | ||
62 | struct time { | |
63 | struct timeval tv; | |
64 | }; | |
65 | ||
66 | #define TIME_ZERO {.tv = {0, 0}} | |
67 | #define TIME_MS(ms) {.tv = {ms / 1000, (ms % 1000) * 1000}} | |
68 | ||
69 | static void time_get(struct time *time) | |
573feabc | 70 | { |
f40ea9d4 ML |
71 | #ifdef HAVE_CLOCK_GETTIME |
72 | struct timespec ts; | |
7fb9a7b0 ML |
73 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) |
74 | clock_gettime(CLOCK_REALTIME, &ts); | |
9a7945af ML |
75 | time->tv.tv_sec = ts.tv_sec; |
76 | time->tv.tv_usec = ts.tv_nsec / 1000; | |
192e7749 ML |
77 | #elif defined(__APPLE__) |
78 | mach_timebase_info_data_t info; | |
79 | mach_timebase_info(&info); | |
80 | uint64_t ticks = mach_absolute_time(); | |
81 | uint64_t ns = (ticks * info.numer) / info.denom; | |
9a7945af ML |
82 | time->tv.tv_sec = ns / 1000000000; |
83 | time->tv.tv_usec = (ns % 1000000000) / 1000; | |
f40ea9d4 | 84 | #else |
9a7945af | 85 | gettimeofday(&time->tv, NULL); |
f40ea9d4 | 86 | #endif |
573feabc | 87 | } |
9a7945af ML |
88 | |
89 | static void time_set_ms(struct time *time, unsigned int ms) | |
90 | { | |
91 | time->tv.tv_sec = ms / 1000; | |
92 | time->tv.tv_usec = (ms % 1000) * 1000; | |
93 | } | |
94 | ||
95 | static void time_add(const struct time *a, | |
96 | const struct time *b, struct time *result) | |
97 | { | |
98 | timeradd(&a->tv, &b->tv, &result->tv); | |
99 | } | |
100 | ||
101 | static void time_sub(const struct time *a, | |
102 | const struct time *b, struct time *result) | |
103 | { | |
104 | timersub(&a->tv, &b->tv, &result->tv); | |
105 | } | |
106 | ||
107 | static bool time_greater(const struct time *a, const struct time *b) | |
108 | { | |
109 | return timercmp(&a->tv, &b->tv, >); | |
110 | } | |
111 | ||
112 | static void time_as_timeval(const struct time *time, struct timeval *tv) | |
113 | { | |
114 | *tv = time->tv; | |
115 | } | |
116 | ||
117 | static unsigned int time_as_ms(const struct time *time) | |
118 | { | |
119 | return time->tv.tv_sec * 1000 + time->tv.tv_usec / 1000; | |
120 | } | |
121 | ||
bd0fb609 | 122 | #endif |
573feabc | 123 | |
970f279a | 124 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
125 | { |
126 | struct sp_port *port; | |
5a8810e2 | 127 | #ifndef NO_PORT_METADATA |
a93fb468 | 128 | enum sp_return ret; |
5a8810e2 | 129 | #endif |
5919c913 | 130 | int len; |
d54e9004 | 131 | |
c33efc48 ML |
132 | TRACE("%s, %p", portname, port_ptr); |
133 | ||
32b5ac05 | 134 | if (!port_ptr) |
c33efc48 | 135 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 136 | |
77f262c4 ML |
137 | *port_ptr = NULL; |
138 | ||
d4babed2 | 139 | if (!portname) |
c33efc48 | 140 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 141 | |
7890cef6 | 142 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 143 | |
95bad38c ST |
144 | #if !defined(_WIN32) && defined(HAVE_REALPATH) |
145 | /* | |
146 | * get_port_details() below tries to be too smart and figure out | |
147 | * some transport properties from the port name which breaks with | |
148 | * symlinks. Therefore we canonicalize the portname first. | |
149 | */ | |
150 | char pathbuf[PATH_MAX + 1]; | |
151 | char *res = realpath(portname, pathbuf); | |
152 | if (!res) | |
153 | RETURN_ERROR(SP_ERR_ARG, "Could not retrieve realpath behind port name"); | |
154 | ||
155 | portname = pathbuf; | |
156 | #endif | |
157 | ||
d54e9004 | 158 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 159 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 160 | |
5919c913 ML |
161 | len = strlen(portname) + 1; |
162 | ||
eac329d2 | 163 | if (!(port->name = malloc(len))) { |
d54e9004 | 164 | free(port); |
c33efc48 | 165 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
166 | } |
167 | ||
168 | memcpy(port->name, portname, len); | |
169 | ||
8f471c66 | 170 | #ifdef _WIN32 |
e31f2c6b | 171 | port->usb_path = NULL; |
8f471c66 | 172 | port->hdl = INVALID_HANDLE_VALUE; |
39df7833 ML |
173 | port->write_buf = NULL; |
174 | port->write_buf_size = 0; | |
8f471c66 ML |
175 | #else |
176 | port->fd = -1; | |
177 | #endif | |
178 | ||
e33dcf90 ML |
179 | port->description = NULL; |
180 | port->transport = SP_TRANSPORT_NATIVE; | |
181 | port->usb_bus = -1; | |
182 | port->usb_address = -1; | |
183 | port->usb_vid = -1; | |
184 | port->usb_pid = -1; | |
185 | port->usb_manufacturer = NULL; | |
186 | port->usb_product = NULL; | |
187 | port->usb_serial = NULL; | |
188 | port->bluetooth_address = NULL; | |
189 | ||
e4ce975a | 190 | #ifndef NO_PORT_METADATA |
e33dcf90 | 191 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
192 | sp_free_port(port); |
193 | return ret; | |
194 | } | |
e4ce975a | 195 | #endif |
a93fb468 | 196 | |
77f262c4 ML |
197 | *port_ptr = port; |
198 | ||
c33efc48 | 199 | RETURN_OK(); |
d54e9004 ML |
200 | } |
201 | ||
970f279a | 202 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
203 | { |
204 | TRACE("%p", port); | |
205 | ||
206 | if (!port) | |
207 | return NULL; | |
208 | ||
9caa2e86 | 209 | RETURN_STRING(port->name); |
1c5aae9d ML |
210 | } |
211 | ||
f1480939 | 212 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
213 | { |
214 | TRACE("%p", port); | |
215 | ||
216 | if (!port || !port->description) | |
217 | return NULL; | |
218 | ||
9caa2e86 | 219 | RETURN_STRING(port->description); |
a93fb468 AJ |
220 | } |
221 | ||
ad036cc8 | 222 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
223 | { |
224 | TRACE("%p", port); | |
225 | ||
226 | if (!port) | |
227 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
228 | ||
9caa2e86 | 229 | RETURN_INT(port->transport); |
a93fb468 AJ |
230 | } |
231 | ||
970f279a AJ |
232 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
233 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
234 | { |
235 | TRACE("%p", port); | |
236 | ||
237 | if (!port) | |
238 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
239 | if (port->transport != SP_TRANSPORT_USB) | |
240 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
241 | if (port->usb_bus < 0 || port->usb_address < 0) |
242 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 243 | |
dc422c04 UH |
244 | if (usb_bus) |
245 | *usb_bus = port->usb_bus; | |
246 | if (usb_address) | |
247 | *usb_address = port->usb_address; | |
a93fb468 AJ |
248 | |
249 | RETURN_OK(); | |
250 | } | |
251 | ||
970f279a AJ |
252 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
253 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
254 | { |
255 | TRACE("%p", port); | |
256 | ||
257 | if (!port) | |
258 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
259 | if (port->transport != SP_TRANSPORT_USB) | |
260 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
261 | if (port->usb_vid < 0 || port->usb_pid < 0) |
262 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 263 | |
dc422c04 UH |
264 | if (usb_vid) |
265 | *usb_vid = port->usb_vid; | |
266 | if (usb_pid) | |
267 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
268 | |
269 | RETURN_OK(); | |
270 | } | |
271 | ||
970f279a | 272 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
273 | { |
274 | TRACE("%p", port); | |
275 | ||
276 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
277 | return NULL; | |
278 | ||
9caa2e86 | 279 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
280 | } |
281 | ||
970f279a | 282 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
283 | { |
284 | TRACE("%p", port); | |
285 | ||
286 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
287 | return NULL; | |
288 | ||
9caa2e86 | 289 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
290 | } |
291 | ||
970f279a | 292 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
293 | { |
294 | TRACE("%p", port); | |
295 | ||
296 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
297 | return NULL; | |
298 | ||
9caa2e86 | 299 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
300 | } |
301 | ||
970f279a | 302 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
303 | { |
304 | TRACE("%p", port); | |
305 | ||
306 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
307 | || !port->bluetooth_address) | |
308 | return NULL; | |
309 | ||
9caa2e86 | 310 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
311 | } |
312 | ||
970f279a AJ |
313 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
314 | void *result_ptr) | |
3c126654 | 315 | { |
00d8c56d | 316 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
317 | |
318 | if (!port) | |
319 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
320 | if (!result_ptr) |
321 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
322 | |
323 | #ifdef _WIN32 | |
324 | HANDLE *handle_ptr = result_ptr; | |
325 | *handle_ptr = port->hdl; | |
326 | #else | |
327 | int *fd_ptr = result_ptr; | |
328 | *fd_ptr = port->fd; | |
329 | #endif | |
330 | ||
331 | RETURN_OK(); | |
332 | } | |
333 | ||
970f279a AJ |
334 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
335 | struct sp_port **copy_ptr) | |
32b5ac05 | 336 | { |
c33efc48 ML |
337 | TRACE("%p, %p", port, copy_ptr); |
338 | ||
32b5ac05 | 339 | if (!copy_ptr) |
c33efc48 | 340 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
341 | |
342 | *copy_ptr = NULL; | |
343 | ||
c33efc48 ML |
344 | if (!port) |
345 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
346 | ||
347 | if (!port->name) | |
348 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 349 | |
ea667be7 ML |
350 | DEBUG("Copying port structure"); |
351 | ||
9caa2e86 | 352 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
353 | } |
354 | ||
970f279a | 355 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 356 | { |
c33efc48 ML |
357 | TRACE("%p", port); |
358 | ||
00d8c56d | 359 | if (!port) { |
c33efc48 ML |
360 | DEBUG("Null port"); |
361 | RETURN(); | |
362 | } | |
e3b2f7a4 | 363 | |
ea667be7 ML |
364 | DEBUG("Freeing port structure"); |
365 | ||
e3b2f7a4 ML |
366 | if (port->name) |
367 | free(port->name); | |
a93fb468 AJ |
368 | if (port->description) |
369 | free(port->description); | |
370 | if (port->usb_manufacturer) | |
371 | free(port->usb_manufacturer); | |
372 | if (port->usb_product) | |
373 | free(port->usb_product); | |
374 | if (port->usb_serial) | |
375 | free(port->usb_serial); | |
376 | if (port->bluetooth_address) | |
377 | free(port->bluetooth_address); | |
378 | #ifdef _WIN32 | |
379 | if (port->usb_path) | |
380 | free(port->usb_path); | |
39df7833 ML |
381 | if (port->write_buf) |
382 | free(port->write_buf); | |
a93fb468 | 383 | #endif |
e3b2f7a4 ML |
384 | |
385 | free(port); | |
c33efc48 ML |
386 | |
387 | RETURN(); | |
e3b2f7a4 ML |
388 | } |
389 | ||
970f279a AJ |
390 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
391 | const char *portname) | |
3b63f34d ML |
392 | { |
393 | void *tmp; | |
394 | unsigned int count; | |
f92f1f0c | 395 | |
81243567 UH |
396 | for (count = 0; list[count]; count++) |
397 | ; | |
d54e9004 | 398 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
399 | goto fail; |
400 | list = tmp; | |
77f262c4 | 401 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 402 | goto fail; |
db2794ce | 403 | list[count + 1] = NULL; |
3b63f34d | 404 | return list; |
f92f1f0c | 405 | |
3b63f34d ML |
406 | fail: |
407 | sp_free_port_list(list); | |
408 | return NULL; | |
409 | } | |
410 | ||
970f279a | 411 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 412 | { |
23e7fa37 | 413 | #ifndef NO_ENUMERATION |
d54e9004 | 414 | struct sp_port **list; |
48a4076f | 415 | int ret; |
23e7fa37 | 416 | #endif |
24c1a4bb | 417 | |
c33efc48 ML |
418 | TRACE("%p", list_ptr); |
419 | ||
dec10e31 ML |
420 | if (!list_ptr) |
421 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
422 | ||
63926415 UH |
423 | *list_ptr = NULL; |
424 | ||
8d12e620 ML |
425 | #ifdef NO_ENUMERATION |
426 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
427 | #else | |
ea667be7 ML |
428 | DEBUG("Enumerating ports"); |
429 | ||
8d12e620 | 430 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 431 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
432 | |
433 | list[0] = NULL; | |
3b63f34d | 434 | |
48a4076f | 435 | ret = list_ports(&list); |
77f262c4 | 436 | |
8d12e620 | 437 | if (ret == SP_OK) { |
77f262c4 | 438 | *list_ptr = list; |
8d12e620 ML |
439 | } else { |
440 | sp_free_port_list(list); | |
77f262c4 ML |
441 | *list_ptr = NULL; |
442 | } | |
8d12e620 ML |
443 | |
444 | RETURN_CODEVAL(ret); | |
445 | #endif | |
3b63f34d ML |
446 | } |
447 | ||
970f279a | 448 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
449 | { |
450 | unsigned int i; | |
f92f1f0c | 451 | |
c33efc48 ML |
452 | TRACE("%p", list); |
453 | ||
dec10e31 ML |
454 | if (!list) { |
455 | DEBUG("Null list"); | |
456 | RETURN(); | |
457 | } | |
458 | ||
ea667be7 ML |
459 | DEBUG("Freeing port list"); |
460 | ||
3b63f34d | 461 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 462 | sp_free_port(list[i]); |
3b63f34d | 463 | free(list); |
c33efc48 ML |
464 | |
465 | RETURN(); | |
3b63f34d ML |
466 | } |
467 | ||
c33efc48 | 468 | #define CHECK_PORT() do { \ |
dc422c04 | 469 | if (!port) \ |
c33efc48 | 470 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 471 | if (!port->name) \ |
dec10e31 ML |
472 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
473 | } while (0) | |
474 | #ifdef _WIN32 | |
475 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 476 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 477 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 478 | } while (0) |
74510d4b | 479 | #else |
dec10e31 | 480 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 481 | if (port->fd < 0) \ |
8062087a | 482 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 483 | } while (0) |
74510d4b | 484 | #endif |
dec10e31 ML |
485 | #define CHECK_OPEN_PORT() do { \ |
486 | CHECK_PORT(); \ | |
487 | CHECK_PORT_HANDLE(); \ | |
488 | } while (0) | |
74510d4b | 489 | |
47fcf8ec ML |
490 | #ifdef WIN32 |
491 | /** To be called after port receive buffer is emptied. */ | |
492 | static enum sp_return restart_wait(struct sp_port *port) | |
493 | { | |
494 | DWORD wait_result; | |
495 | ||
496 | if (port->wait_running) { | |
497 | /* Check status of running wait operation. */ | |
498 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
499 | &wait_result, FALSE)) { | |
500 | DEBUG("Previous wait completed"); | |
501 | port->wait_running = FALSE; | |
502 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
503 | DEBUG("Previous wait still running"); | |
504 | RETURN_OK(); | |
505 | } else { | |
506 | RETURN_FAIL("GetOverlappedResult() failed"); | |
507 | } | |
508 | } | |
509 | ||
510 | if (!port->wait_running) { | |
511 | /* Start new wait operation. */ | |
512 | if (WaitCommEvent(port->hdl, &port->events, | |
513 | &port->wait_ovl)) { | |
514 | DEBUG("New wait returned, events already pending"); | |
515 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
516 | DEBUG("New wait running in background"); | |
517 | port->wait_running = TRUE; | |
518 | } else { | |
519 | RETURN_FAIL("WaitCommEvent() failed"); | |
520 | } | |
521 | } | |
522 | ||
523 | RETURN_OK(); | |
524 | } | |
525 | #endif | |
526 | ||
970f279a | 527 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 528 | { |
bccc7c9f ML |
529 | struct port_data data; |
530 | struct sp_port_config config; | |
531 | enum sp_return ret; | |
532 | ||
00d8c56d | 533 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 534 | |
dec10e31 ML |
535 | CHECK_PORT(); |
536 | ||
276ef1b9 | 537 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 538 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 539 | |
7890cef6 | 540 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 541 | |
74510d4b | 542 | #ifdef _WIN32 |
537942c9 | 543 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 544 | char *escaped_port_name; |
537942c9 | 545 | COMSTAT status; |
99945a1f ML |
546 | |
547 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 548 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 549 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
550 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
551 | ||
74510d4b | 552 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 553 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
554 | if (flags & SP_MODE_READ) |
555 | desired_access |= GENERIC_READ; | |
556 | if (flags & SP_MODE_WRITE) | |
74510d4b | 557 | desired_access |= GENERIC_WRITE; |
74510d4b | 558 | |
99945a1f | 559 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 560 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
561 | |
562 | free(escaped_port_name); | |
563 | ||
74510d4b | 564 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 565 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
566 | |
567 | /* All timeouts initially disabled. */ | |
568 | port->timeouts.ReadIntervalTimeout = 0; | |
569 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
570 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
571 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
572 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 573 | |
e3dcf906 | 574 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
575 | sp_close(port); |
576 | RETURN_FAIL("SetCommTimeouts() failed"); | |
577 | } | |
e3dcf906 ML |
578 | |
579 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
580 | #define INIT_OVERLAPPED(ovl) do { \ |
581 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
582 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
583 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
584 | == INVALID_HANDLE_VALUE) { \ | |
585 | sp_close(port); \ | |
586 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
587 | } \ | |
588 | } while (0) | |
589 | ||
590 | INIT_OVERLAPPED(read_ovl); | |
591 | INIT_OVERLAPPED(write_ovl); | |
592 | INIT_OVERLAPPED(wait_ovl); | |
593 | ||
594 | /* Set event mask for RX and error events. */ | |
595 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 596 | sp_close(port); |
6f1186aa | 597 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 598 | } |
6f1186aa | 599 | |
e3dcf906 | 600 | port->writing = FALSE; |
47fcf8ec | 601 | port->wait_running = FALSE; |
e3dcf906 | 602 | |
47fcf8ec ML |
603 | ret = restart_wait(port); |
604 | ||
605 | if (ret < 0) { | |
606 | sp_close(port); | |
607 | RETURN_CODEVAL(ret); | |
608 | } | |
74510d4b | 609 | #else |
fa106ef1 | 610 | int flags_local = O_NONBLOCK | O_NOCTTY | O_CLOEXEC; |
f92f1f0c | 611 | |
74510d4b | 612 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 613 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 614 | flags_local |= O_RDWR; |
a036341b | 615 | else if (flags & SP_MODE_READ) |
74510d4b | 616 | flags_local |= O_RDONLY; |
a036341b ML |
617 | else if (flags & SP_MODE_WRITE) |
618 | flags_local |= O_WRONLY; | |
74510d4b ML |
619 | |
620 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 621 | RETURN_FAIL("open() failed"); |
bccc7c9f | 622 | #endif |
9cb98459 | 623 | |
e33ab9aa ML |
624 | ret = get_config(port, &data, &config); |
625 | ||
eac329d2 | 626 | if (ret < 0) { |
e33ab9aa | 627 | sp_close(port); |
c33efc48 | 628 | RETURN_CODEVAL(ret); |
e33ab9aa | 629 | } |
9cb98459 | 630 | |
bccc7c9f ML |
631 | /* Set sane port settings. */ |
632 | #ifdef _WIN32 | |
633 | data.dcb.fBinary = TRUE; | |
634 | data.dcb.fDsrSensitivity = FALSE; | |
635 | data.dcb.fErrorChar = FALSE; | |
636 | data.dcb.fNull = FALSE; | |
34442106 | 637 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 638 | #else |
b251be4b | 639 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
640 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
641 | #ifdef IUCLC | |
642 | data.term.c_iflag &= ~IUCLC; | |
643 | #endif | |
644 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
645 | #ifdef OLCUC | |
646 | data.term.c_oflag &= ~OLCUC; | |
647 | #endif | |
648 | #ifdef NLDLY | |
649 | data.term.c_oflag &= ~NLDLY; | |
650 | #endif | |
651 | #ifdef CRDLY | |
652 | data.term.c_oflag &= ~CRDLY; | |
653 | #endif | |
654 | #ifdef TABDLY | |
655 | data.term.c_oflag &= ~TABDLY; | |
656 | #endif | |
657 | #ifdef BSDLY | |
658 | data.term.c_oflag &= ~BSDLY; | |
659 | #endif | |
660 | #ifdef VTDLY | |
661 | data.term.c_oflag &= ~VTDLY; | |
662 | #endif | |
663 | #ifdef FFDLY | |
664 | data.term.c_oflag &= ~FFDLY; | |
665 | #endif | |
b251be4b | 666 | #ifdef OFILL |
9cb98459 ML |
667 | data.term.c_oflag &= ~OFILL; |
668 | #endif | |
c3e05092 | 669 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 670 | data.term.c_cc[VMIN] = 0; |
b251be4b | 671 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 672 | |
b251be4b ML |
673 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
674 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 675 | #endif |
9cb98459 | 676 | |
537942c9 | 677 | #ifdef _WIN32 |
1a2a1544 UH |
678 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
679 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
680 | #endif |
681 | ||
e33ab9aa ML |
682 | ret = set_config(port, &data, &config); |
683 | ||
eac329d2 | 684 | if (ret < 0) { |
e33ab9aa | 685 | sp_close(port); |
c33efc48 | 686 | RETURN_CODEVAL(ret); |
e33ab9aa | 687 | } |
74510d4b | 688 | |
c33efc48 | 689 | RETURN_OK(); |
74510d4b ML |
690 | } |
691 | ||
970f279a | 692 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 693 | { |
c33efc48 ML |
694 | TRACE("%p", port); |
695 | ||
dec10e31 | 696 | CHECK_OPEN_PORT(); |
74510d4b | 697 | |
7890cef6 | 698 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 699 | |
74510d4b ML |
700 | #ifdef _WIN32 |
701 | /* Returns non-zero upon success, 0 upon failure. */ | |
702 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 703 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 704 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
705 | |
706 | /* Close event handles for overlapped structures. */ | |
707 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
708 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
709 | CloseHandle(port->ovl.hEvent) == 0) \ | |
710 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
711 | } while (0) | |
712 | CLOSE_OVERLAPPED(read_ovl); | |
713 | CLOSE_OVERLAPPED(write_ovl); | |
714 | CLOSE_OVERLAPPED(wait_ovl); | |
715 | ||
39df7833 ML |
716 | if (port->write_buf) { |
717 | free(port->write_buf); | |
718 | port->write_buf = NULL; | |
719 | } | |
74510d4b ML |
720 | #else |
721 | /* Returns 0 upon success, -1 upon failure. */ | |
722 | if (close(port->fd) == -1) | |
c33efc48 | 723 | RETURN_FAIL("close() failed"); |
8f471c66 | 724 | port->fd = -1; |
74510d4b ML |
725 | #endif |
726 | ||
c33efc48 | 727 | RETURN_OK(); |
74510d4b ML |
728 | } |
729 | ||
970f279a | 730 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 731 | { |
00d8c56d | 732 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 733 | |
dec10e31 ML |
734 | CHECK_OPEN_PORT(); |
735 | ||
736 | if (buffers > SP_BUF_BOTH) | |
737 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 738 | |
0ba3e49b | 739 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 740 | |
7890cef6 ML |
741 | DEBUG_FMT("Flushing %s buffers on port %s", |
742 | buffer_names[buffers], port->name); | |
ea667be7 | 743 | |
74510d4b | 744 | #ifdef _WIN32 |
fd8fd11a ML |
745 | DWORD flags = 0; |
746 | if (buffers & SP_BUF_INPUT) | |
747 | flags |= PURGE_RXCLEAR; | |
748 | if (buffers & SP_BUF_OUTPUT) | |
749 | flags |= PURGE_TXCLEAR; | |
750 | ||
74510d4b | 751 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 752 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 753 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
754 | |
755 | if (buffers & SP_BUF_INPUT) | |
756 | TRY(restart_wait(port)); | |
74510d4b | 757 | #else |
fd8fd11a | 758 | int flags = 0; |
ad749855 | 759 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 760 | flags = TCIOFLUSH; |
ad749855 | 761 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 762 | flags = TCIFLUSH; |
ad749855 | 763 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
764 | flags = TCOFLUSH; |
765 | ||
74510d4b | 766 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 767 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 768 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 769 | #endif |
c33efc48 | 770 | RETURN_OK(); |
74510d4b ML |
771 | } |
772 | ||
970f279a | 773 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 774 | { |
c33efc48 ML |
775 | TRACE("%p", port); |
776 | ||
dec10e31 | 777 | CHECK_OPEN_PORT(); |
69a3739c | 778 | |
7890cef6 | 779 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 780 | |
69a3739c ML |
781 | #ifdef _WIN32 |
782 | /* Returns non-zero upon success, 0 upon failure. */ | |
783 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 784 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 785 | RETURN_OK(); |
69a3739c | 786 | #else |
2c827b21 ML |
787 | int result; |
788 | while (1) { | |
abd31fd9 ML |
789 | #if defined(__ANDROID__) && (__ANDROID_API__ < 21) |
790 | /* Android only has tcdrain from platform 21 onwards. | |
791 | * On previous API versions, use the ioctl directly. */ | |
33fd8804 ML |
792 | int arg = 1; |
793 | result = ioctl(port->fd, TCSBRK, &arg); | |
794 | #else | |
2c827b21 | 795 | result = tcdrain(port->fd); |
33fd8804 | 796 | #endif |
2c827b21 ML |
797 | if (result < 0) { |
798 | if (errno == EINTR) { | |
799 | DEBUG("tcdrain() was interrupted"); | |
800 | continue; | |
801 | } else { | |
802 | RETURN_FAIL("tcdrain() failed"); | |
803 | } | |
804 | } else { | |
805 | RETURN_OK(); | |
806 | } | |
807 | } | |
69a3739c | 808 | #endif |
69a3739c ML |
809 | } |
810 | ||
62ed9f80 ML |
811 | #ifdef _WIN32 |
812 | static enum sp_return await_write_completion(struct sp_port *port) | |
813 | { | |
814 | TRACE("%p", port); | |
815 | DWORD bytes_written; | |
816 | BOOL result; | |
817 | ||
818 | /* Wait for previous non-blocking write to complete, if any. */ | |
819 | if (port->writing) { | |
820 | DEBUG("Waiting for previous write to complete"); | |
821 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
822 | port->writing = 0; | |
823 | if (!result) | |
824 | RETURN_FAIL("Previous write failed to complete"); | |
825 | DEBUG("Previous write completed"); | |
826 | } | |
827 | ||
828 | RETURN_OK(); | |
829 | } | |
830 | #endif | |
831 | ||
970f279a | 832 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 833 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 834 | { |
1b91c6ea | 835 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
836 | |
837 | CHECK_OPEN_PORT(); | |
838 | ||
839 | if (!buf) | |
840 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
841 | ||
1b91c6ea | 842 | if (timeout_ms) |
7890cef6 | 843 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 844 | count, port->name, timeout_ms); |
e3dcf906 | 845 | else |
7890cef6 ML |
846 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
847 | count, port->name); | |
e3dcf906 ML |
848 | |
849 | if (count == 0) | |
9caa2e86 | 850 | RETURN_INT(0); |
e3dcf906 ML |
851 | |
852 | #ifdef _WIN32 | |
853 | DWORD bytes_written = 0; | |
e3dcf906 | 854 | |
62ed9f80 | 855 | TRY(await_write_completion(port)); |
e3dcf906 ML |
856 | |
857 | /* Set timeout. */ | |
27a58c05 ML |
858 | if (port->timeouts.WriteTotalTimeoutConstant != timeout_ms) { |
859 | port->timeouts.WriteTotalTimeoutConstant = timeout_ms; | |
860 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
861 | RETURN_FAIL("SetCommTimeouts() failed"); | |
862 | } | |
e3dcf906 | 863 | |
b457865b ML |
864 | /* Reduce count if it exceeds the WriteFile limit. */ |
865 | if (count > WRITEFILE_MAX_SIZE) | |
866 | count = WRITEFILE_MAX_SIZE; | |
867 | ||
e3dcf906 | 868 | /* Start write. */ |
bbe566fe | 869 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl)) { |
e3dcf906 | 870 | DEBUG("Write completed immediately"); |
9caa2e86 | 871 | RETURN_INT(count); |
bbe566fe ML |
872 | } else if (GetLastError() == ERROR_IO_PENDING) { |
873 | DEBUG("Waiting for write to complete"); | |
aee7d691 UH |
874 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) { |
875 | if (GetLastError() == ERROR_SEM_TIMEOUT) { | |
876 | DEBUG("Write timed out"); | |
877 | RETURN_INT(0); | |
878 | } else { | |
879 | RETURN_FAIL("GetOverlappedResult() failed"); | |
880 | } | |
881 | } | |
bbe566fe ML |
882 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
883 | RETURN_INT(bytes_written); | |
884 | } else { | |
885 | RETURN_FAIL("WriteFile() failed"); | |
e3dcf906 ML |
886 | } |
887 | #else | |
888 | size_t bytes_written = 0; | |
889 | unsigned char *ptr = (unsigned char *) buf; | |
9a7945af | 890 | struct time start, delta, now, end = TIME_ZERO; |
76222ee5 | 891 | int started = 0; |
e3dcf906 ML |
892 | fd_set fds; |
893 | int result; | |
894 | ||
1b91c6ea | 895 | if (timeout_ms) { |
e3dcf906 | 896 | /* Get time at start of operation. */ |
9a7945af | 897 | time_get(&start); |
e3dcf906 | 898 | /* Define duration of timeout. */ |
9a7945af | 899 | time_set_ms(&delta, timeout_ms); |
e3dcf906 | 900 | /* Calculate time at which we should give up. */ |
9a7945af | 901 | time_add(&start, &delta, &end); |
e3dcf906 ML |
902 | } |
903 | ||
772c5861 ML |
904 | FD_ZERO(&fds); |
905 | FD_SET(port->fd, &fds); | |
906 | ||
e3dcf906 | 907 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 908 | while (bytes_written < count) { |
76222ee5 ML |
909 | /* |
910 | * Check timeout only if we have run select() at least once, | |
911 | * to avoid any issues if a short timeout is reached before | |
912 | * select() is even run. | |
913 | */ | |
9a7945af | 914 | struct timeval tv; |
76222ee5 | 915 | if (timeout_ms && started) { |
9a7945af ML |
916 | time_get(&now); |
917 | if (time_greater(&now, &end)) | |
c3cee38c ML |
918 | /* Timeout has expired. */ |
919 | break; | |
9a7945af ML |
920 | time_sub(&end, &now, &delta); |
921 | time_as_timeval(&delta, &tv); | |
e3dcf906 | 922 | } |
9a7945af | 923 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_ms ? &tv : NULL); |
76222ee5 | 924 | started = 1; |
63a17c64 ML |
925 | if (result < 0) { |
926 | if (errno == EINTR) { | |
927 | DEBUG("select() call was interrupted, repeating"); | |
928 | continue; | |
929 | } else { | |
930 | RETURN_FAIL("select() failed"); | |
931 | } | |
932 | } else if (result == 0) { | |
c3cee38c ML |
933 | /* Timeout has expired. */ |
934 | break; | |
e3dcf906 ML |
935 | } |
936 | ||
937 | /* Do write. */ | |
938 | result = write(port->fd, ptr, count - bytes_written); | |
939 | ||
940 | if (result < 0) { | |
941 | if (errno == EAGAIN) | |
942 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
943 | continue; | |
944 | else | |
945 | /* This is an actual failure. */ | |
946 | RETURN_FAIL("write() failed"); | |
947 | } | |
948 | ||
949 | bytes_written += result; | |
950 | ptr += result; | |
951 | } | |
952 | ||
c3cee38c ML |
953 | if (bytes_written < count) |
954 | DEBUG("Write timed out"); | |
955 | ||
9caa2e86 | 956 | RETURN_INT(bytes_written); |
e3dcf906 ML |
957 | #endif |
958 | } | |
959 | ||
970f279a AJ |
960 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
961 | const void *buf, size_t count) | |
74510d4b | 962 | { |
c33efc48 ML |
963 | TRACE("%p, %p, %d", port, buf, count); |
964 | ||
dec10e31 | 965 | CHECK_OPEN_PORT(); |
74510d4b ML |
966 | |
967 | if (!buf) | |
c33efc48 | 968 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 969 | |
7890cef6 | 970 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 971 | |
a3cb91f5 | 972 | if (count == 0) |
9caa2e86 | 973 | RETURN_INT(0); |
a3cb91f5 | 974 | |
74510d4b | 975 | #ifdef _WIN32 |
39df7833 | 976 | DWORD buf_bytes; |
f92f1f0c | 977 | |
e3dcf906 ML |
978 | /* Check whether previous write is complete. */ |
979 | if (port->writing) { | |
980 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
981 | DEBUG("Previous write completed"); | |
982 | port->writing = 0; | |
983 | } else { | |
984 | DEBUG("Previous write not complete"); | |
985 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 986 | RETURN_INT(0); |
a3cb91f5 | 987 | } |
e3dcf906 | 988 | } |
a3cb91f5 | 989 | |
e3dcf906 | 990 | /* Set timeout. */ |
27a58c05 ML |
991 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
992 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
993 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
994 | RETURN_FAIL("SetCommTimeouts() failed"); | |
995 | } | |
e3dcf906 | 996 | |
b457865b ML |
997 | /* Reduce count if it exceeds the WriteFile limit. */ |
998 | if (count > WRITEFILE_MAX_SIZE) | |
999 | count = WRITEFILE_MAX_SIZE; | |
1000 | ||
39df7833 ML |
1001 | /* Copy data to our write buffer. */ |
1002 | buf_bytes = min(port->write_buf_size, count); | |
1003 | memcpy(port->write_buf, buf, buf_bytes); | |
1004 | ||
1005 | /* Start asynchronous write. */ | |
1006 | if (WriteFile(port->hdl, port->write_buf, buf_bytes, NULL, &port->write_ovl) == 0) { | |
1007 | if (GetLastError() == ERROR_IO_PENDING) { | |
1008 | if ((port->writing = !HasOverlappedIoCompleted(&port->write_ovl))) | |
1009 | DEBUG("Asynchronous write completed immediately"); | |
1010 | else | |
1011 | DEBUG("Asynchronous write running"); | |
e3dcf906 | 1012 | } else { |
39df7833 ML |
1013 | /* Actual failure of some kind. */ |
1014 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 ML |
1015 | } |
1016 | } | |
1017 | ||
9af8cff3 | 1018 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1019 | |
39df7833 | 1020 | RETURN_INT(buf_bytes); |
74510d4b ML |
1021 | #else |
1022 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1023 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1024 | |
55ab7e0b ML |
1025 | if (written < 0) { |
1026 | if (errno == EAGAIN) | |
1027 | // Buffer is full, no bytes written. | |
1028 | RETURN_INT(0); | |
1029 | else | |
1030 | RETURN_FAIL("write() failed"); | |
1031 | } else { | |
9caa2e86 | 1032 | RETURN_INT(written); |
55ab7e0b | 1033 | } |
74510d4b ML |
1034 | #endif |
1035 | } | |
1036 | ||
94a314a8 ML |
1037 | #ifdef _WIN32 |
1038 | /* Restart wait operation if buffer was emptied. */ | |
1039 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
1040 | { | |
8ebfaf89 ML |
1041 | DWORD errors; |
1042 | COMSTAT comstat; | |
94a314a8 | 1043 | |
21ae5ce1 ML |
1044 | if (bytes_read == 0) |
1045 | RETURN_OK(); | |
1046 | ||
8ebfaf89 ML |
1047 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
1048 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 1049 | |
8ebfaf89 | 1050 | if (comstat.cbInQue == 0) |
94a314a8 ML |
1051 | TRY(restart_wait(port)); |
1052 | ||
1053 | RETURN_OK(); | |
1054 | } | |
1055 | #endif | |
1056 | ||
970f279a | 1057 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 1058 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 1059 | { |
1b91c6ea | 1060 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
1061 | |
1062 | CHECK_OPEN_PORT(); | |
1063 | ||
1064 | if (!buf) | |
1065 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1066 | ||
1b91c6ea | 1067 | if (timeout_ms) |
7890cef6 | 1068 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 1069 | count, port->name, timeout_ms); |
e3dcf906 | 1070 | else |
7890cef6 ML |
1071 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
1072 | count, port->name); | |
e3dcf906 ML |
1073 | |
1074 | if (count == 0) | |
9caa2e86 | 1075 | RETURN_INT(0); |
e3dcf906 ML |
1076 | |
1077 | #ifdef _WIN32 | |
1078 | DWORD bytes_read = 0; | |
1079 | ||
1080 | /* Set timeout. */ | |
27a58c05 | 1081 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 1082 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1083 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
1084 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 1085 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1086 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
1087 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1088 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1089 | } | |
e3dcf906 ML |
1090 | |
1091 | /* Start read. */ | |
bbe566fe | 1092 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { |
e3dcf906 | 1093 | DEBUG("Read completed immediately"); |
6f1186aa | 1094 | bytes_read = count; |
bbe566fe ML |
1095 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1096 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
1097 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1098 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
1099 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
1100 | } else { | |
1101 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
1102 | } |
1103 | ||
94a314a8 | 1104 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1105 | |
9caa2e86 | 1106 | RETURN_INT(bytes_read); |
6f1186aa | 1107 | |
e3dcf906 ML |
1108 | #else |
1109 | size_t bytes_read = 0; | |
9a7945af ML |
1110 | unsigned char *ptr = (unsigned char *) buf; |
1111 | struct time start, delta, now, end = TIME_ZERO; | |
76222ee5 | 1112 | int started = 0; |
e3dcf906 ML |
1113 | fd_set fds; |
1114 | int result; | |
1115 | ||
1b91c6ea | 1116 | if (timeout_ms) { |
e3dcf906 | 1117 | /* Get time at start of operation. */ |
9a7945af | 1118 | time_get(&start); |
e3dcf906 | 1119 | /* Define duration of timeout. */ |
9a7945af | 1120 | time_set_ms(&delta, timeout_ms); |
e3dcf906 | 1121 | /* Calculate time at which we should give up. */ |
9a7945af | 1122 | time_add(&start, &delta, &end); |
e3dcf906 ML |
1123 | } |
1124 | ||
772c5861 ML |
1125 | FD_ZERO(&fds); |
1126 | FD_SET(port->fd, &fds); | |
1127 | ||
e3dcf906 | 1128 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1129 | while (bytes_read < count) { |
76222ee5 ML |
1130 | /* |
1131 | * Check timeout only if we have run select() at least once, | |
1132 | * to avoid any issues if a short timeout is reached before | |
1133 | * select() is even run. | |
1134 | */ | |
9a7945af | 1135 | struct timeval tv; |
76222ee5 | 1136 | if (timeout_ms && started) { |
9a7945af ML |
1137 | time_get(&now); |
1138 | if (time_greater(&now, &end)) | |
e3dcf906 | 1139 | /* Timeout has expired. */ |
c3cee38c | 1140 | break; |
9a7945af ML |
1141 | time_sub(&end, &now, &delta); |
1142 | time_as_timeval(&delta, &tv); | |
e3dcf906 | 1143 | } |
9a7945af | 1144 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_ms ? &tv : NULL); |
76222ee5 | 1145 | started = 1; |
63a17c64 ML |
1146 | if (result < 0) { |
1147 | if (errno == EINTR) { | |
1148 | DEBUG("select() call was interrupted, repeating"); | |
1149 | continue; | |
1150 | } else { | |
1151 | RETURN_FAIL("select() failed"); | |
1152 | } | |
1153 | } else if (result == 0) { | |
c3cee38c ML |
1154 | /* Timeout has expired. */ |
1155 | break; | |
e3dcf906 ML |
1156 | } |
1157 | ||
1158 | /* Do read. */ | |
1159 | result = read(port->fd, ptr, count - bytes_read); | |
1160 | ||
1161 | if (result < 0) { | |
1162 | if (errno == EAGAIN) | |
76222ee5 ML |
1163 | /* |
1164 | * This shouldn't happen because we did a | |
1165 | * select() first, but handle anyway. | |
1166 | */ | |
e3dcf906 ML |
1167 | continue; |
1168 | else | |
1169 | /* This is an actual failure. */ | |
1170 | RETURN_FAIL("read() failed"); | |
1171 | } | |
1172 | ||
1173 | bytes_read += result; | |
1174 | ptr += result; | |
1175 | } | |
1176 | ||
c3cee38c ML |
1177 | if (bytes_read < count) |
1178 | DEBUG("Read timed out"); | |
1179 | ||
9caa2e86 | 1180 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1181 | #endif |
1182 | } | |
1183 | ||
e5c2630e ML |
1184 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1185 | size_t count, unsigned int timeout_ms) | |
1186 | { | |
1187 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1188 | ||
1189 | CHECK_OPEN_PORT(); | |
1190 | ||
1191 | if (!buf) | |
1192 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1193 | ||
1194 | if (count == 0) | |
1195 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1196 | ||
1197 | if (timeout_ms) | |
1198 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1199 | count, port->name, timeout_ms); | |
1200 | else | |
1201 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1202 | count, port->name); | |
1203 | ||
1204 | #ifdef _WIN32 | |
1205 | DWORD bytes_read = 0; | |
1206 | ||
1207 | /* If timeout_ms == 0, set maximum timeout. */ | |
1208 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1209 | ||
1210 | /* Set timeout. */ | |
1211 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1212 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1213 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1214 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1215 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1216 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1217 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1218 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1219 | } | |
1220 | ||
1221 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1222 | while (bytes_read == 0) { | |
1223 | /* Start read. */ | |
888fb45d | 1224 | if (ReadFile(port->hdl, buf, count, &bytes_read, &port->read_ovl)) { |
e5c2630e | 1225 | DEBUG("Read completed immediately"); |
e5c2630e ML |
1226 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1227 | DEBUG("Waiting for read to complete"); | |
1228 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1229 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1230 | if (bytes_read > 0) { | |
1231 | DEBUG("Read completed"); | |
1232 | } else if (timeout_ms > 0) { | |
1233 | DEBUG("Read timed out"); | |
1234 | break; | |
1235 | } else { | |
1236 | DEBUG("Restarting read"); | |
1237 | } | |
1238 | } else { | |
1239 | RETURN_FAIL("ReadFile() failed"); | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1244 | ||
1245 | RETURN_INT(bytes_read); | |
1246 | ||
1247 | #else | |
1248 | size_t bytes_read = 0; | |
9a7945af | 1249 | struct time start, delta, now, end = TIME_ZERO; |
e5c2630e ML |
1250 | int started = 0; |
1251 | fd_set fds; | |
1252 | int result; | |
1253 | ||
1254 | if (timeout_ms) { | |
1255 | /* Get time at start of operation. */ | |
9a7945af | 1256 | time_get(&start); |
e5c2630e | 1257 | /* Define duration of timeout. */ |
9a7945af | 1258 | time_set_ms(&delta, timeout_ms); |
e5c2630e | 1259 | /* Calculate time at which we should give up. */ |
9a7945af | 1260 | time_add(&start, &delta, &end); |
e5c2630e ML |
1261 | } |
1262 | ||
1263 | FD_ZERO(&fds); | |
1264 | FD_SET(port->fd, &fds); | |
1265 | ||
1266 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1267 | while (bytes_read == 0) { | |
1268 | /* | |
1269 | * Check timeout only if we have run select() at least once, | |
1270 | * to avoid any issues if a short timeout is reached before | |
1271 | * select() is even run. | |
1272 | */ | |
9a7945af | 1273 | struct timeval tv; |
e5c2630e | 1274 | if (timeout_ms && started) { |
9a7945af ML |
1275 | time_get(&now); |
1276 | if (time_greater(&now, &end)) | |
e5c2630e ML |
1277 | /* Timeout has expired. */ |
1278 | break; | |
9a7945af ML |
1279 | time_sub(&end, &now, &delta); |
1280 | time_as_timeval(&delta, &tv); | |
e5c2630e | 1281 | } |
9a7945af | 1282 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_ms ? &tv : NULL); |
e5c2630e ML |
1283 | started = 1; |
1284 | if (result < 0) { | |
1285 | if (errno == EINTR) { | |
1286 | DEBUG("select() call was interrupted, repeating"); | |
1287 | continue; | |
1288 | } else { | |
1289 | RETURN_FAIL("select() failed"); | |
1290 | } | |
1291 | } else if (result == 0) { | |
1292 | /* Timeout has expired. */ | |
1293 | break; | |
1294 | } | |
1295 | ||
1296 | /* Do read. */ | |
1297 | result = read(port->fd, buf, count); | |
1298 | ||
1299 | if (result < 0) { | |
1300 | if (errno == EAGAIN) | |
1301 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1302 | continue; | |
1303 | else | |
1304 | /* This is an actual failure. */ | |
1305 | RETURN_FAIL("read() failed"); | |
1306 | } | |
1307 | ||
1308 | bytes_read = result; | |
1309 | } | |
1310 | ||
1311 | if (bytes_read == 0) | |
1312 | DEBUG("Read timed out"); | |
1313 | ||
1314 | RETURN_INT(bytes_read); | |
1315 | #endif | |
1316 | } | |
1317 | ||
970f279a AJ |
1318 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1319 | size_t count) | |
74510d4b | 1320 | { |
c33efc48 ML |
1321 | TRACE("%p, %p, %d", port, buf, count); |
1322 | ||
dec10e31 | 1323 | CHECK_OPEN_PORT(); |
74510d4b ML |
1324 | |
1325 | if (!buf) | |
c33efc48 | 1326 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1327 | |
7890cef6 | 1328 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1329 | |
74510d4b | 1330 | #ifdef _WIN32 |
e3dcf906 | 1331 | DWORD bytes_read; |
f92f1f0c | 1332 | |
e3dcf906 | 1333 | /* Set timeout. */ |
27a58c05 | 1334 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1335 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1336 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1337 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1338 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1339 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1340 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1341 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1342 | } | |
e3dcf906 ML |
1343 | |
1344 | /* Do read. */ | |
1345 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
ae2c5825 ML |
1346 | if (GetLastError() != ERROR_IO_PENDING) |
1347 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1348 | |
1349 | /* Get number of bytes read. */ | |
ae2c5825 | 1350 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1351 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1352 | |
94a314a8 | 1353 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1354 | |
9caa2e86 | 1355 | RETURN_INT(bytes_read); |
74510d4b ML |
1356 | #else |
1357 | ssize_t bytes_read; | |
f92f1f0c | 1358 | |
74510d4b | 1359 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1360 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1361 | if (errno == EAGAIN) |
1362 | /* No bytes available. */ | |
33d5ff47 ML |
1363 | bytes_read = 0; |
1364 | else | |
1365 | /* This is an actual failure. */ | |
1366 | RETURN_FAIL("read() failed"); | |
1367 | } | |
9caa2e86 | 1368 | RETURN_INT(bytes_read); |
74510d4b ML |
1369 | #endif |
1370 | } | |
1371 | ||
970f279a | 1372 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1373 | { |
1374 | TRACE("%p", port); | |
1375 | ||
1376 | CHECK_OPEN_PORT(); | |
1377 | ||
7890cef6 | 1378 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1379 | |
1380 | #ifdef _WIN32 | |
1381 | DWORD errors; | |
1382 | COMSTAT comstat; | |
1383 | ||
1384 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1385 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1386 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1387 | #else |
1388 | int bytes_waiting; | |
1389 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1390 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1391 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1392 | #endif |
1393 | } | |
1394 | ||
970f279a | 1395 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1396 | { |
1397 | TRACE("%p", port); | |
1398 | ||
1399 | CHECK_OPEN_PORT(); | |
1400 | ||
7890cef6 | 1401 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1402 | |
1403 | #ifdef _WIN32 | |
1404 | DWORD errors; | |
1405 | COMSTAT comstat; | |
1406 | ||
1407 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1408 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1409 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1410 | #else |
1411 | int bytes_waiting; | |
1412 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1413 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1414 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1415 | #endif |
1416 | } | |
1417 | ||
970f279a | 1418 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1419 | { |
1420 | struct sp_event_set *result; | |
1421 | ||
1422 | TRACE("%p", result_ptr); | |
1423 | ||
1424 | if (!result_ptr) | |
1425 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1426 | ||
1427 | *result_ptr = NULL; | |
1428 | ||
1429 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1430 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1431 | ||
1432 | memset(result, 0, sizeof(struct sp_event_set)); | |
1433 | ||
1434 | *result_ptr = result; | |
1435 | ||
1436 | RETURN_OK(); | |
1437 | } | |
1438 | ||
1439 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1440 | event_handle handle, enum sp_event mask) | |
1441 | { | |
1442 | void *new_handles; | |
1443 | enum sp_event *new_masks; | |
1444 | ||
1445 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1446 | ||
1447 | if (!(new_handles = realloc(event_set->handles, | |
1448 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1449 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1450 | |
ac323d80 UH |
1451 | event_set->handles = new_handles; |
1452 | ||
6f1186aa | 1453 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1454 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1455 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1456 | |
6f1186aa ML |
1457 | event_set->masks = new_masks; |
1458 | ||
1459 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1460 | event_set->masks[event_set->count] = mask; | |
1461 | ||
1462 | event_set->count++; | |
1463 | ||
1464 | RETURN_OK(); | |
1465 | } | |
1466 | ||
970f279a | 1467 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1468 | const struct sp_port *port, enum sp_event mask) |
1469 | { | |
1470 | TRACE("%p, %p, %d", event_set, port, mask); | |
1471 | ||
1472 | if (!event_set) | |
1473 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1474 | ||
1475 | if (!port) | |
1476 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1477 | ||
1478 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1479 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1480 | ||
1481 | if (!mask) | |
1482 | RETURN_OK(); | |
1483 | ||
1484 | #ifdef _WIN32 | |
1485 | enum sp_event handle_mask; | |
1486 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1487 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1488 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1489 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1490 | #else | |
1491 | TRY(add_handle(event_set, port->fd, mask)); | |
1492 | #endif | |
1493 | ||
1494 | RETURN_OK(); | |
1495 | } | |
1496 | ||
970f279a | 1497 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1498 | { |
1499 | TRACE("%p", event_set); | |
1500 | ||
1501 | if (!event_set) { | |
1502 | DEBUG("Null event set"); | |
1503 | RETURN(); | |
1504 | } | |
1505 | ||
1506 | DEBUG("Freeing event set"); | |
1507 | ||
1508 | if (event_set->handles) | |
1509 | free(event_set->handles); | |
1510 | if (event_set->masks) | |
1511 | free(event_set->masks); | |
1512 | ||
1513 | free(event_set); | |
1514 | ||
1515 | RETURN(); | |
1516 | } | |
1517 | ||
970f279a | 1518 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1519 | unsigned int timeout_ms) |
6f1186aa | 1520 | { |
1b91c6ea | 1521 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1522 | |
1523 | if (!event_set) | |
1524 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1525 | ||
1526 | #ifdef _WIN32 | |
1527 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1528 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1529 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1530 | ||
1531 | RETURN_OK(); | |
1532 | #else | |
9a7945af ML |
1533 | struct time start, delta, now, end = TIME_ZERO; |
1534 | const struct time max_delta = TIME_MS(INT_MAX); | |
127d8d0c | 1535 | int started = 0, timeout_overflow = 0; |
1b91c6ea | 1536 | int result, timeout_remaining_ms; |
6f1186aa ML |
1537 | struct pollfd *pollfds; |
1538 | unsigned int i; | |
1539 | ||
1540 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1541 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1542 | ||
1543 | for (i = 0; i < event_set->count; i++) { | |
81243567 | 1544 | pollfds[i].fd = ((int *)event_set->handles)[i]; |
6f1186aa ML |
1545 | pollfds[i].events = 0; |
1546 | pollfds[i].revents = 0; | |
1547 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1548 | pollfds[i].events |= POLLIN; | |
1549 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1550 | pollfds[i].events |= POLLOUT; | |
1551 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1552 | pollfds[i].events |= POLLERR; | |
1553 | } | |
1554 | ||
1b91c6ea | 1555 | if (timeout_ms) { |
6f1186aa | 1556 | /* Get time at start of operation. */ |
9a7945af | 1557 | time_get(&start); |
6f1186aa | 1558 | /* Define duration of timeout. */ |
9a7945af | 1559 | time_set_ms(&delta, timeout_ms); |
6f1186aa | 1560 | /* Calculate time at which we should give up. */ |
9a7945af | 1561 | time_add(&start, &delta, &end); |
6f1186aa ML |
1562 | } |
1563 | ||
1564 | /* Loop until an event occurs. */ | |
dc422c04 | 1565 | while (1) { |
76222ee5 ML |
1566 | /* |
1567 | * Check timeout only if we have run poll() at least once, | |
1568 | * to avoid any issues if a short timeout is reached before | |
1569 | * poll() is even run. | |
1570 | */ | |
6b8eee06 ML |
1571 | if (!timeout_ms) { |
1572 | timeout_remaining_ms = -1; | |
1573 | } else if (!started) { | |
127d8d0c ML |
1574 | timeout_overflow = (timeout_ms > INT_MAX); |
1575 | timeout_remaining_ms = timeout_overflow ? INT_MAX : timeout_ms; | |
6b8eee06 | 1576 | } else { |
9a7945af ML |
1577 | time_get(&now); |
1578 | if (time_greater(&now, &end)) { | |
dc422c04 | 1579 | DEBUG("Wait timed out"); |
6f1186aa ML |
1580 | break; |
1581 | } | |
9a7945af ML |
1582 | time_sub(&end, &now, &delta); |
1583 | if ((timeout_overflow = time_greater(&delta, &max_delta))) | |
127d8d0c | 1584 | delta = max_delta; |
9a7945af | 1585 | timeout_remaining_ms = time_as_ms(&delta); |
6f1186aa ML |
1586 | } |
1587 | ||
6b8eee06 | 1588 | result = poll(pollfds, event_set->count, timeout_remaining_ms); |
76222ee5 | 1589 | started = 1; |
6f1186aa ML |
1590 | |
1591 | if (result < 0) { | |
1592 | if (errno == EINTR) { | |
1593 | DEBUG("poll() call was interrupted, repeating"); | |
1594 | continue; | |
1595 | } else { | |
1596 | free(pollfds); | |
1597 | RETURN_FAIL("poll() failed"); | |
1598 | } | |
1599 | } else if (result == 0) { | |
1600 | DEBUG("poll() timed out"); | |
127d8d0c ML |
1601 | if (!timeout_overflow) |
1602 | break; | |
6f1186aa ML |
1603 | } else { |
1604 | DEBUG("poll() completed"); | |
1605 | break; | |
1606 | } | |
1607 | } | |
1608 | ||
1609 | free(pollfds); | |
1610 | RETURN_OK(); | |
1611 | #endif | |
1612 | } | |
1613 | ||
5cea279a | 1614 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1615 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1616 | { | |
1617 | void *data; | |
1618 | ||
c33efc48 ML |
1619 | TRACE("%d, %p", fd, baudrate); |
1620 | ||
ea667be7 ML |
1621 | DEBUG("Getting baud rate"); |
1622 | ||
7a6d2196 | 1623 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1624 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1625 | |
8d43110a ML |
1626 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1627 | free(data); | |
dc422c04 | 1628 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1629 | } |
7a6d2196 ML |
1630 | |
1631 | *baudrate = get_termios_speed(data); | |
1632 | ||
8d43110a ML |
1633 | free(data); |
1634 | ||
c33efc48 | 1635 | RETURN_OK(); |
7a6d2196 ML |
1636 | } |
1637 | ||
1638 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1639 | { | |
1640 | void *data; | |
1641 | ||
c33efc48 ML |
1642 | TRACE("%d, %d", fd, baudrate); |
1643 | ||
ea667be7 ML |
1644 | DEBUG("Getting baud rate"); |
1645 | ||
7a6d2196 | 1646 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1647 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1648 | |
8d43110a ML |
1649 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1650 | free(data); | |
dc422c04 | 1651 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1652 | } |
7a6d2196 | 1653 | |
ea667be7 ML |
1654 | DEBUG("Setting baud rate"); |
1655 | ||
7a6d2196 ML |
1656 | set_termios_speed(data, baudrate); |
1657 | ||
8d43110a ML |
1658 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1659 | free(data); | |
dc422c04 | 1660 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1661 | } |
1662 | ||
1663 | free(data); | |
7a6d2196 | 1664 | |
c33efc48 | 1665 | RETURN_OK(); |
7a6d2196 | 1666 | } |
5cea279a | 1667 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1668 | |
1669 | #ifdef USE_TERMIOX | |
bd791fe1 | 1670 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1671 | { |
bd791fe1 | 1672 | void *termx; |
40978c2b | 1673 | |
bd791fe1 | 1674 | TRACE("%d, %p", fd, data); |
c33efc48 | 1675 | |
ea667be7 ML |
1676 | DEBUG("Getting advanced flow control"); |
1677 | ||
bd791fe1 | 1678 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1679 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1680 | |
bd791fe1 ML |
1681 | if (ioctl(fd, TCGETX, termx) < 0) { |
1682 | free(termx); | |
dc422c04 | 1683 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1684 | } |
40978c2b | 1685 | |
bd791fe1 ML |
1686 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1687 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1688 | |
bd791fe1 | 1689 | free(termx); |
8d43110a | 1690 | |
c33efc48 | 1691 | RETURN_OK(); |
40978c2b ML |
1692 | } |
1693 | ||
bd791fe1 | 1694 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1695 | { |
bd791fe1 | 1696 | void *termx; |
40978c2b | 1697 | |
bd791fe1 | 1698 | TRACE("%d, %p", fd, data); |
c33efc48 | 1699 | |
ea667be7 ML |
1700 | DEBUG("Getting advanced flow control"); |
1701 | ||
bd791fe1 | 1702 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1703 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1704 | |
bd791fe1 ML |
1705 | if (ioctl(fd, TCGETX, termx) < 0) { |
1706 | free(termx); | |
dc422c04 | 1707 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1708 | } |
40978c2b | 1709 | |
ea667be7 ML |
1710 | DEBUG("Setting advanced flow control"); |
1711 | ||
bd791fe1 ML |
1712 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1713 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1714 | |
bd791fe1 ML |
1715 | if (ioctl(fd, TCSETX, termx) < 0) { |
1716 | free(termx); | |
dc422c04 | 1717 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1718 | } |
1719 | ||
bd791fe1 | 1720 | free(termx); |
40978c2b | 1721 | |
c33efc48 | 1722 | RETURN_OK(); |
40978c2b ML |
1723 | } |
1724 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1725 | |
eb6ed20f ML |
1726 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1727 | struct sp_port_config *config) | |
8094e4a0 | 1728 | { |
da2748bf | 1729 | unsigned int i; |
cbf628c7 | 1730 | |
c33efc48 ML |
1731 | TRACE("%p, %p, %p", port, data, config); |
1732 | ||
7890cef6 | 1733 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1734 | |
8094e4a0 | 1735 | #ifdef _WIN32 |
e33ab9aa | 1736 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1737 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1738 | |
067417af | 1739 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1740 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1741 | config->baudrate = std_baudrates[i].value; |
1742 | break; | |
1743 | } | |
1744 | } | |
1745 | ||
1746 | if (i == NUM_STD_BAUDRATES) | |
1747 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1748 | config->baudrate = data->dcb.BaudRate; |
067417af | 1749 | |
e33ab9aa | 1750 | config->bits = data->dcb.ByteSize; |
067417af | 1751 | |
e33ab9aa ML |
1752 | if (data->dcb.fParity) |
1753 | switch (data->dcb.Parity) { | |
067417af ML |
1754 | case NOPARITY: |
1755 | config->parity = SP_PARITY_NONE; | |
1756 | break; | |
e432ce60 ML |
1757 | case ODDPARITY: |
1758 | config->parity = SP_PARITY_ODD; | |
1759 | break; | |
067417af ML |
1760 | case EVENPARITY: |
1761 | config->parity = SP_PARITY_EVEN; | |
1762 | break; | |
e432ce60 ML |
1763 | case MARKPARITY: |
1764 | config->parity = SP_PARITY_MARK; | |
1765 | break; | |
1766 | case SPACEPARITY: | |
1767 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1768 | break; |
1769 | default: | |
1770 | config->parity = -1; | |
1771 | } | |
1772 | else | |
1773 | config->parity = SP_PARITY_NONE; | |
1774 | ||
e33ab9aa | 1775 | switch (data->dcb.StopBits) { |
067417af ML |
1776 | case ONESTOPBIT: |
1777 | config->stopbits = 1; | |
1778 | break; | |
1779 | case TWOSTOPBITS: | |
1780 | config->stopbits = 2; | |
1781 | break; | |
1782 | default: | |
1783 | config->stopbits = -1; | |
1784 | } | |
1785 | ||
e33ab9aa | 1786 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1787 | case RTS_CONTROL_DISABLE: |
1788 | config->rts = SP_RTS_OFF; | |
1789 | break; | |
1790 | case RTS_CONTROL_ENABLE: | |
1791 | config->rts = SP_RTS_ON; | |
1792 | break; | |
1793 | case RTS_CONTROL_HANDSHAKE: | |
1794 | config->rts = SP_RTS_FLOW_CONTROL; | |
1795 | break; | |
1796 | default: | |
1797 | config->rts = -1; | |
067417af ML |
1798 | } |
1799 | ||
e33ab9aa | 1800 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1801 | |
e33ab9aa | 1802 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1803 | case DTR_CONTROL_DISABLE: |
1804 | config->dtr = SP_DTR_OFF; | |
1805 | break; | |
1806 | case DTR_CONTROL_ENABLE: | |
1807 | config->dtr = SP_DTR_ON; | |
1808 | break; | |
1809 | case DTR_CONTROL_HANDSHAKE: | |
1810 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1811 | break; | |
1812 | default: | |
1813 | config->dtr = -1; | |
067417af ML |
1814 | } |
1815 | ||
e33ab9aa ML |
1816 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1817 | ||
c6754b45 ML |
1818 | if (data->dcb.fInX) { |
1819 | if (data->dcb.fOutX) | |
1820 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1821 | else | |
1822 | config->xon_xoff = SP_XONXOFF_IN; | |
1823 | } else { | |
1824 | if (data->dcb.fOutX) | |
1825 | config->xon_xoff = SP_XONXOFF_OUT; | |
1826 | else | |
1827 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1828 | } | |
1829 | ||
e33ab9aa ML |
1830 | #else // !_WIN32 |
1831 | ||
1832 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1833 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1834 | |
1835 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1836 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1837 | |
1838 | #ifdef USE_TERMIOX | |
bd791fe1 | 1839 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1840 | |
1841 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1842 | data->termiox_supported = 0; | |
1843 | else if (ret < 0) | |
c33efc48 | 1844 | RETURN_CODEVAL(ret); |
68ec29db ML |
1845 | else |
1846 | data->termiox_supported = 1; | |
1847 | #else | |
1848 | data->termiox_supported = 0; | |
40978c2b ML |
1849 | #endif |
1850 | ||
067417af | 1851 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1852 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1853 | config->baudrate = std_baudrates[i].value; |
1854 | break; | |
1855 | } | |
1856 | } | |
1857 | ||
31b3a8f5 MH |
1858 | if (i == NUM_STD_BAUDRATES) { |
1859 | #ifdef __APPLE__ | |
1860 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1861 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1862 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1863 | #else |
067417af | 1864 | config->baudrate = -1; |
31b3a8f5 MH |
1865 | #endif |
1866 | } | |
067417af | 1867 | |
e33ab9aa | 1868 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1869 | case CS8: |
1870 | config->bits = 8; | |
1871 | break; | |
1872 | case CS7: | |
1873 | config->bits = 7; | |
1874 | break; | |
1875 | case CS6: | |
1876 | config->bits = 6; | |
1877 | break; | |
1878 | case CS5: | |
1879 | config->bits = 5; | |
1880 | break; | |
1881 | default: | |
1882 | config->bits = -1; | |
1883 | } | |
1884 | ||
e33ab9aa | 1885 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1886 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1887 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1888 | config->parity = -1; |
c3e05092 | 1889 | #ifdef CMSPAR |
e432ce60 ML |
1890 | else if (data->term.c_cflag & CMSPAR) |
1891 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1892 | #endif |
067417af | 1893 | else |
e33ab9aa | 1894 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1895 | |
e33ab9aa | 1896 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1897 | |
e33ab9aa | 1898 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1899 | config->rts = SP_RTS_FLOW_CONTROL; |
1900 | config->cts = SP_CTS_FLOW_CONTROL; | |
1901 | } else { | |
bd791fe1 | 1902 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1903 | config->rts = SP_RTS_FLOW_CONTROL; |
1904 | else | |
1905 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1906 | ||
bd791fe1 | 1907 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1908 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1909 | } |
1910 | ||
bd791fe1 | 1911 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1912 | config->dtr = SP_DTR_FLOW_CONTROL; |
1913 | else | |
1914 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1915 | ||
bd791fe1 | 1916 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1917 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1918 | |
e29b93a5 ML |
1919 | if (data->term.c_iflag & IXOFF) { |
1920 | if (data->term.c_iflag & IXON) | |
1921 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1922 | else | |
1923 | config->xon_xoff = SP_XONXOFF_IN; | |
1924 | } else { | |
1925 | if (data->term.c_iflag & IXON) | |
1926 | config->xon_xoff = SP_XONXOFF_OUT; | |
1927 | else | |
1928 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1929 | } | |
067417af ML |
1930 | #endif |
1931 | ||
c33efc48 | 1932 | RETURN_OK(); |
067417af ML |
1933 | } |
1934 | ||
7a6d2196 | 1935 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1936 | const struct sp_port_config *config) |
18fc2dd1 | 1937 | { |
e33ab9aa | 1938 | unsigned int i; |
31b3a8f5 MH |
1939 | #ifdef __APPLE__ |
1940 | BAUD_TYPE baud_nonstd; | |
1941 | ||
1942 | baud_nonstd = B0; | |
1943 | #endif | |
5cea279a | 1944 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1945 | int baud_nonstd = 0; |
1946 | #endif | |
18fc2dd1 | 1947 | |
c33efc48 ML |
1948 | TRACE("%p, %p, %p", port, data, config); |
1949 | ||
7890cef6 | 1950 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1951 | |
e33ab9aa | 1952 | #ifdef _WIN32 |
6bd6a8b5 ML |
1953 | |
1954 | TRY(await_write_completion(port)); | |
1955 | ||
eac329d2 | 1956 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1957 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1958 | if (config->baudrate == std_baudrates[i].value) { | |
1959 | data->dcb.BaudRate = std_baudrates[i].index; | |
1960 | break; | |
1961 | } | |
1962 | } | |
18fc2dd1 | 1963 | |
e33ab9aa ML |
1964 | if (i == NUM_STD_BAUDRATES) |
1965 | data->dcb.BaudRate = config->baudrate; | |
39df7833 ML |
1966 | |
1967 | /* Allocate write buffer for 50ms of data at baud rate. */ | |
1968 | port->write_buf_size = max(config->baudrate / (8 * 20), 1); | |
1969 | port->write_buf = realloc(port->write_buf, | |
1970 | port->write_buf_size); | |
1971 | ||
1972 | if (!port->write_buf) | |
1973 | RETURN_ERROR(SP_ERR_MEM, "Allocating write buffer failed"); | |
e33ab9aa | 1974 | } |
18fc2dd1 | 1975 | |
e33ab9aa ML |
1976 | if (config->bits >= 0) |
1977 | data->dcb.ByteSize = config->bits; | |
1978 | ||
1979 | if (config->parity >= 0) { | |
1980 | switch (config->parity) { | |
e33ab9aa ML |
1981 | case SP_PARITY_NONE: |
1982 | data->dcb.Parity = NOPARITY; | |
1983 | break; | |
e432ce60 ML |
1984 | case SP_PARITY_ODD: |
1985 | data->dcb.Parity = ODDPARITY; | |
1986 | break; | |
e33ab9aa ML |
1987 | case SP_PARITY_EVEN: |
1988 | data->dcb.Parity = EVENPARITY; | |
1989 | break; | |
e432ce60 ML |
1990 | case SP_PARITY_MARK: |
1991 | data->dcb.Parity = MARKPARITY; | |
1992 | break; | |
1993 | case SP_PARITY_SPACE: | |
1994 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1995 | break; |
1996 | default: | |
c33efc48 | 1997 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1998 | } |
18fc2dd1 ML |
1999 | } |
2000 | ||
e33ab9aa ML |
2001 | if (config->stopbits >= 0) { |
2002 | switch (config->stopbits) { | |
2003 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
2004 | case 1: | |
2005 | data->dcb.StopBits = ONESTOPBIT; | |
2006 | break; | |
2007 | case 2: | |
2008 | data->dcb.StopBits = TWOSTOPBITS; | |
2009 | break; | |
2010 | default: | |
c33efc48 | 2011 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
2012 | } |
2013 | } | |
2014 | ||
2015 | if (config->rts >= 0) { | |
2016 | switch (config->rts) { | |
2017 | case SP_RTS_OFF: | |
2018 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
2019 | break; | |
2020 | case SP_RTS_ON: | |
2021 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
2022 | break; | |
2023 | case SP_RTS_FLOW_CONTROL: | |
2024 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
2025 | break; | |
2026 | default: | |
c33efc48 | 2027 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
2028 | } |
2029 | } | |
2030 | ||
2031 | if (config->cts >= 0) { | |
2032 | switch (config->cts) { | |
2033 | case SP_CTS_IGNORE: | |
2034 | data->dcb.fOutxCtsFlow = FALSE; | |
2035 | break; | |
2036 | case SP_CTS_FLOW_CONTROL: | |
2037 | data->dcb.fOutxCtsFlow = TRUE; | |
2038 | break; | |
2039 | default: | |
c33efc48 | 2040 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
2041 | } |
2042 | } | |
2043 | ||
2044 | if (config->dtr >= 0) { | |
2045 | switch (config->dtr) { | |
2046 | case SP_DTR_OFF: | |
2047 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
2048 | break; | |
2049 | case SP_DTR_ON: | |
2050 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
2051 | break; | |
2052 | case SP_DTR_FLOW_CONTROL: | |
2053 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
2054 | break; | |
2055 | default: | |
c33efc48 | 2056 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
2057 | } |
2058 | } | |
2059 | ||
2060 | if (config->dsr >= 0) { | |
2061 | switch (config->dsr) { | |
2062 | case SP_DSR_IGNORE: | |
2063 | data->dcb.fOutxDsrFlow = FALSE; | |
2064 | break; | |
2065 | case SP_DSR_FLOW_CONTROL: | |
2066 | data->dcb.fOutxDsrFlow = TRUE; | |
2067 | break; | |
2068 | default: | |
c33efc48 | 2069 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 2070 | } |
18fc2dd1 ML |
2071 | } |
2072 | ||
e33ab9aa ML |
2073 | if (config->xon_xoff >= 0) { |
2074 | switch (config->xon_xoff) { | |
2075 | case SP_XONXOFF_DISABLED: | |
2076 | data->dcb.fInX = FALSE; | |
2077 | data->dcb.fOutX = FALSE; | |
2078 | break; | |
2079 | case SP_XONXOFF_IN: | |
2080 | data->dcb.fInX = TRUE; | |
2081 | data->dcb.fOutX = FALSE; | |
2082 | break; | |
2083 | case SP_XONXOFF_OUT: | |
2084 | data->dcb.fInX = FALSE; | |
2085 | data->dcb.fOutX = TRUE; | |
2086 | break; | |
2087 | case SP_XONXOFF_INOUT: | |
2088 | data->dcb.fInX = TRUE; | |
2089 | data->dcb.fOutX = TRUE; | |
2090 | break; | |
2091 | default: | |
c33efc48 | 2092 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2093 | } |
2094 | } | |
2095 | ||
2096 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 2097 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 2098 | |
31b3a8f5 | 2099 | #else /* !_WIN32 */ |
e33ab9aa | 2100 | |
7a6d2196 ML |
2101 | int controlbits; |
2102 | ||
eac329d2 | 2103 | if (config->baudrate >= 0) { |
e33ab9aa ML |
2104 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
2105 | if (config->baudrate == std_baudrates[i].value) { | |
2106 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2107 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
2108 | |
2109 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2110 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
2111 | break; |
2112 | } | |
2113 | } | |
2114 | ||
31b3a8f5 MH |
2115 | /* Non-standard baud rate */ |
2116 | if (i == NUM_STD_BAUDRATES) { | |
2117 | #ifdef __APPLE__ | |
24abdb68 | 2118 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2119 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2120 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2121 | baud_nonstd = config->baudrate; |
5cea279a | 2122 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2123 | baud_nonstd = 1; |
31b3a8f5 | 2124 | #else |
c33efc48 | 2125 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2126 | #endif |
2127 | } | |
e33ab9aa ML |
2128 | } |
2129 | ||
2130 | if (config->bits >= 0) { | |
2131 | data->term.c_cflag &= ~CSIZE; | |
2132 | switch (config->bits) { | |
2133 | case 8: | |
2134 | data->term.c_cflag |= CS8; | |
2135 | break; | |
2136 | case 7: | |
2137 | data->term.c_cflag |= CS7; | |
2138 | break; | |
2139 | case 6: | |
2140 | data->term.c_cflag |= CS6; | |
2141 | break; | |
23922313 UH |
2142 | case 5: |
2143 | data->term.c_cflag |= CS5; | |
2144 | break; | |
e33ab9aa | 2145 | default: |
c33efc48 | 2146 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2147 | } |
2148 | } | |
2149 | ||
2150 | if (config->parity >= 0) { | |
2151 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2152 | data->term.c_cflag &= ~(PARENB | PARODD); |
2153 | #ifdef CMSPAR | |
2154 | data->term.c_cflag &= ~CMSPAR; | |
2155 | #endif | |
e33ab9aa ML |
2156 | switch (config->parity) { |
2157 | case SP_PARITY_NONE: | |
2158 | data->term.c_iflag |= IGNPAR; | |
2159 | break; | |
2160 | case SP_PARITY_EVEN: | |
2161 | data->term.c_cflag |= PARENB; | |
2162 | break; | |
2163 | case SP_PARITY_ODD: | |
2164 | data->term.c_cflag |= PARENB | PARODD; | |
2165 | break; | |
afb518f0 | 2166 | #ifdef CMSPAR |
e432ce60 | 2167 | case SP_PARITY_MARK: |
c3e05092 | 2168 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2169 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2170 | break; |
2171 | case SP_PARITY_SPACE: | |
c3e05092 | 2172 | data->term.c_cflag |= PARENB; |
c3e05092 | 2173 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2174 | break; |
afb518f0 ML |
2175 | #else |
2176 | case SP_PARITY_MARK: | |
2177 | case SP_PARITY_SPACE: | |
2178 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2179 | #endif | |
e33ab9aa | 2180 | default: |
c33efc48 | 2181 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2182 | } |
2183 | } | |
2184 | ||
2185 | if (config->stopbits >= 0) { | |
2186 | data->term.c_cflag &= ~CSTOPB; | |
2187 | switch (config->stopbits) { | |
2188 | case 1: | |
2189 | data->term.c_cflag &= ~CSTOPB; | |
2190 | break; | |
2191 | case 2: | |
2192 | data->term.c_cflag |= CSTOPB; | |
2193 | break; | |
2194 | default: | |
c33efc48 | 2195 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2196 | } |
2197 | } | |
2198 | ||
eac329d2 | 2199 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2200 | if (data->termiox_supported) { |
bd791fe1 | 2201 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2202 | switch (config->rts) { |
2203 | case SP_RTS_OFF: | |
2204 | case SP_RTS_ON: | |
2205 | controlbits = TIOCM_RTS; | |
2206 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2207 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2208 | break; |
2209 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2210 | data->rts_flow = 1; |
68ec29db ML |
2211 | break; |
2212 | default: | |
2213 | break; | |
e33ab9aa | 2214 | } |
68ec29db | 2215 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2216 | data->cts_flow = 1; |
e33ab9aa | 2217 | |
bd791fe1 | 2218 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2219 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2220 | else |
2221 | data->term.c_iflag &= ~CRTSCTS; | |
2222 | } else { | |
2223 | /* Asymmetric use of RTS/CTS not supported. */ | |
2224 | if (data->term.c_iflag & CRTSCTS) { | |
2225 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2226 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2227 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2228 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2229 | } |
2230 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2231 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2232 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2233 | } |
e33ab9aa | 2234 | } else { |
68ec29db ML |
2235 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2236 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2237 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2238 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2239 | } |
2240 | ||
2241 | if (config->rts >= 0) { | |
2242 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2243 | data->term.c_iflag |= CRTSCTS; | |
2244 | } else { | |
2245 | controlbits = TIOCM_RTS; | |
2246 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2247 | &controlbits) < 0) | |
c33efc48 | 2248 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2249 | } |
e33ab9aa ML |
2250 | } |
2251 | } | |
2252 | } | |
2253 | ||
eac329d2 | 2254 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2255 | if (data->termiox_supported) { |
bd791fe1 | 2256 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2257 | switch (config->dtr) { |
2258 | case SP_DTR_OFF: | |
2259 | case SP_DTR_ON: | |
2260 | controlbits = TIOCM_DTR; | |
2261 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2262 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2263 | break; |
2264 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2265 | data->dtr_flow = 1; |
68ec29db ML |
2266 | break; |
2267 | default: | |
2268 | break; | |
2269 | } | |
2270 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2271 | data->dsr_flow = 1; |
68ec29db ML |
2272 | } else { |
2273 | /* DTR/DSR flow control not supported. */ | |
2274 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2275 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2276 | |
68ec29db ML |
2277 | if (config->dtr >= 0) { |
2278 | controlbits = TIOCM_DTR; | |
2279 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2280 | &controlbits) < 0) | |
c33efc48 | 2281 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2282 | } |
e33ab9aa ML |
2283 | } |
2284 | } | |
2285 | ||
2286 | if (config->xon_xoff >= 0) { | |
2287 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2288 | switch (config->xon_xoff) { | |
2289 | case SP_XONXOFF_DISABLED: | |
2290 | break; | |
2291 | case SP_XONXOFF_IN: | |
2292 | data->term.c_iflag |= IXOFF; | |
2293 | break; | |
2294 | case SP_XONXOFF_OUT: | |
2295 | data->term.c_iflag |= IXON | IXANY; | |
2296 | break; | |
2297 | case SP_XONXOFF_INOUT: | |
2298 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2299 | break; | |
2300 | default: | |
c33efc48 | 2301 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2302 | } |
2303 | } | |
2304 | ||
3f5c06d0 | 2305 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2306 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2307 | |
2308 | #ifdef __APPLE__ | |
2309 | if (baud_nonstd != B0) { | |
2310 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2311 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2312 | /* |
2313 | * Set baud rates in data->term to correct, but incompatible | |
2314 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2315 | */ | |
31b3a8f5 | 2316 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2317 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2318 | } |
7a6d2196 | 2319 | #elif defined(__linux__) |
5cea279a | 2320 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2321 | if (baud_nonstd) |
2322 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2323 | #endif |
40978c2b | 2324 | #ifdef USE_TERMIOX |
68ec29db | 2325 | if (data->termiox_supported) |
bd791fe1 | 2326 | TRY(set_flow(port->fd, data)); |
40978c2b | 2327 | #endif |
7a6d2196 | 2328 | #endif |
31b3a8f5 MH |
2329 | |
2330 | #endif /* !_WIN32 */ | |
e33ab9aa | 2331 | |
c33efc48 | 2332 | RETURN_OK(); |
e33ab9aa ML |
2333 | } |
2334 | ||
970f279a | 2335 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2336 | { |
59131d60 | 2337 | struct sp_port_config *config; |
9b1502ef | 2338 | |
00d8c56d UH |
2339 | TRACE("%p", config_ptr); |
2340 | ||
9b1502ef ML |
2341 | if (!config_ptr) |
2342 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2343 | ||
59131d60 ML |
2344 | *config_ptr = NULL; |
2345 | ||
2346 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2347 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2348 | |
59131d60 ML |
2349 | config->baudrate = -1; |
2350 | config->bits = -1; | |
2351 | config->parity = -1; | |
2352 | config->stopbits = -1; | |
2353 | config->rts = -1; | |
2354 | config->cts = -1; | |
2355 | config->dtr = -1; | |
2356 | config->dsr = -1; | |
2357 | ||
2358 | *config_ptr = config; | |
2359 | ||
9b1502ef ML |
2360 | RETURN_OK(); |
2361 | } | |
2362 | ||
970f279a | 2363 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2364 | { |
2365 | TRACE("%p", config); | |
2366 | ||
2367 | if (!config) | |
2368 | DEBUG("Null config"); | |
2369 | else | |
2370 | free(config); | |
2371 | ||
2372 | RETURN(); | |
2373 | } | |
2374 | ||
970f279a AJ |
2375 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2376 | struct sp_port_config *config) | |
70cd37de ML |
2377 | { |
2378 | struct port_data data; | |
2379 | ||
2380 | TRACE("%p, %p", port, config); | |
2381 | ||
2382 | CHECK_OPEN_PORT(); | |
2383 | ||
2384 | if (!config) | |
9b1502ef | 2385 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2386 | |
2387 | TRY(get_config(port, &data, config)); | |
2388 | ||
2389 | RETURN_OK(); | |
2390 | } | |
2391 | ||
970f279a AJ |
2392 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2393 | const struct sp_port_config *config) | |
e33ab9aa | 2394 | { |
8f189c4c | 2395 | struct port_data data; |
e33ab9aa ML |
2396 | struct sp_port_config prev_config; |
2397 | ||
c33efc48 ML |
2398 | TRACE("%p, %p", port, config); |
2399 | ||
dec10e31 | 2400 | CHECK_OPEN_PORT(); |
823690ae ML |
2401 | |
2402 | if (!config) | |
c33efc48 | 2403 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2404 | |
e33ab9aa ML |
2405 | TRY(get_config(port, &data, &prev_config)); |
2406 | TRY(set_config(port, &data, config)); | |
74510d4b | 2407 | |
c33efc48 | 2408 | RETURN_OK(); |
74510d4b ML |
2409 | } |
2410 | ||
9b1502ef | 2411 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2412 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2413 | struct port_data data; \ |
e33ab9aa | 2414 | struct sp_port_config config; \ |
c33efc48 | 2415 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2416 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2417 | TRY(get_config(port, &data, &config)); \ |
2418 | config.x = x; \ | |
2419 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2420 | RETURN_OK(); \ |
9b1502ef | 2421 | } \ |
970f279a AJ |
2422 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2423 | type *x) { \ | |
00d8c56d | 2424 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2425 | if (!x) \ |
2426 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2427 | if (!config) \ |
2428 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2429 | *x = config->x; \ | |
2430 | RETURN_OK(); \ | |
2431 | } \ | |
970f279a AJ |
2432 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2433 | type x) { \ | |
9b1502ef ML |
2434 | TRACE("%p, %d", config, x); \ |
2435 | if (!config) \ | |
2436 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2437 | config->x = x; \ | |
2438 | RETURN_OK(); \ | |
9069c2fb ML |
2439 | } |
2440 | ||
9b1502ef ML |
2441 | CREATE_ACCESSORS(baudrate, int) |
2442 | CREATE_ACCESSORS(bits, int) | |
2443 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2444 | CREATE_ACCESSORS(stopbits, int) | |
2445 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2446 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2447 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2448 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2449 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2450 | ||
970f279a AJ |
2451 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2452 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2453 | { |
9b1502ef ML |
2454 | if (!config) |
2455 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2456 | |
2457 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2458 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2459 | |
e33ab9aa | 2460 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2461 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2462 | else |
9b1502ef | 2463 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2464 | |
2465 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2466 | config->rts = SP_RTS_FLOW_CONTROL; |
2467 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2468 | } else { |
9b1502ef ML |
2469 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2470 | config->rts = SP_RTS_ON; | |
2471 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2472 | } |
2473 | ||
2474 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2475 | config->dtr = SP_DTR_FLOW_CONTROL; |
2476 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2477 | } else { |
9b1502ef ML |
2478 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2479 | config->dtr = SP_DTR_ON; | |
2480 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2481 | } |
2482 | ||
9b1502ef ML |
2483 | RETURN_OK(); |
2484 | } | |
2485 | ||
970f279a AJ |
2486 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2487 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2488 | { |
2489 | struct port_data data; | |
2490 | struct sp_port_config config; | |
2491 | ||
2492 | TRACE("%p, %d", port, flowcontrol); | |
2493 | ||
2494 | CHECK_OPEN_PORT(); | |
2495 | ||
2496 | TRY(get_config(port, &data, &config)); | |
2497 | ||
2498 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2499 | ||
e33ab9aa ML |
2500 | TRY(set_config(port, &data, &config)); |
2501 | ||
c33efc48 | 2502 | RETURN_OK(); |
e33ab9aa ML |
2503 | } |
2504 | ||
970f279a AJ |
2505 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2506 | enum sp_signal *signals) | |
8cf7c697 | 2507 | { |
c33efc48 ML |
2508 | TRACE("%p, %p", port, signals); |
2509 | ||
dec10e31 | 2510 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2511 | |
2512 | if (!signals) | |
c33efc48 | 2513 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2514 | |
7890cef6 | 2515 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2516 | |
8cf7c697 ML |
2517 | *signals = 0; |
2518 | #ifdef _WIN32 | |
2519 | DWORD bits; | |
2520 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2521 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2522 | if (bits & MS_CTS_ON) |
2523 | *signals |= SP_SIG_CTS; | |
2524 | if (bits & MS_DSR_ON) | |
2525 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2526 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2527 | *signals |= SP_SIG_DCD; |
2528 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2529 | *signals |= SP_SIG_RI; |
2530 | #else | |
2531 | int bits; | |
2532 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2533 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2534 | if (bits & TIOCM_CTS) |
2535 | *signals |= SP_SIG_CTS; | |
2536 | if (bits & TIOCM_DSR) | |
2537 | *signals |= SP_SIG_DSR; | |
2538 | if (bits & TIOCM_CAR) | |
2539 | *signals |= SP_SIG_DCD; | |
2540 | if (bits & TIOCM_RNG) | |
2541 | *signals |= SP_SIG_RI; | |
2542 | #endif | |
c33efc48 | 2543 | RETURN_OK(); |
8cf7c697 ML |
2544 | } |
2545 | ||
970f279a | 2546 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2547 | { |
c33efc48 ML |
2548 | TRACE("%p", port); |
2549 | ||
dec10e31 | 2550 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2551 | #ifdef _WIN32 |
2552 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2553 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2554 | #else |
2555 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2556 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2557 | #endif |
2558 | ||
c33efc48 | 2559 | RETURN_OK(); |
90cc3ee6 ML |
2560 | } |
2561 | ||
970f279a | 2562 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2563 | { |
c33efc48 ML |
2564 | TRACE("%p", port); |
2565 | ||
dec10e31 | 2566 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2567 | #ifdef _WIN32 |
2568 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2569 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2570 | #else |
2571 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2572 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2573 | #endif |
2574 | ||
c33efc48 | 2575 | RETURN_OK(); |
90cc3ee6 ML |
2576 | } |
2577 | ||
970f279a | 2578 | SP_API int sp_last_error_code(void) |
74510d4b | 2579 | { |
7890cef6 | 2580 | TRACE_VOID(); |
74510d4b | 2581 | #ifdef _WIN32 |
9caa2e86 | 2582 | RETURN_INT(GetLastError()); |
74510d4b | 2583 | #else |
9caa2e86 | 2584 | RETURN_INT(errno); |
74510d4b ML |
2585 | #endif |
2586 | } | |
2587 | ||
970f279a | 2588 | SP_API char *sp_last_error_message(void) |
74510d4b | 2589 | { |
7890cef6 | 2590 | TRACE_VOID(); |
c33efc48 | 2591 | |
74510d4b | 2592 | #ifdef _WIN32 |
9a0c4bbd | 2593 | TCHAR *message; |
74510d4b ML |
2594 | DWORD error = GetLastError(); |
2595 | ||
9a0c4bbd | 2596 | DWORD length = FormatMessage( |
74510d4b ML |
2597 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2598 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2599 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2600 | NULL, | |
2601 | error, | |
2602 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2603 | (LPTSTR) &message, | |
2604 | 0, NULL ); | |
2605 | ||
9a0c4bbd ML |
2606 | if (length >= 2 && message[length - 2] == '\r') |
2607 | message[length - 2] = '\0'; | |
2608 | ||
9caa2e86 | 2609 | RETURN_STRING(message); |
74510d4b | 2610 | #else |
9caa2e86 | 2611 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2612 | #endif |
2613 | } | |
2614 | ||
970f279a | 2615 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2616 | { |
c33efc48 ML |
2617 | TRACE("%s", message); |
2618 | ||
74510d4b ML |
2619 | #ifdef _WIN32 |
2620 | LocalFree(message); | |
64eec30d ML |
2621 | #else |
2622 | (void)message; | |
74510d4b | 2623 | #endif |
c33efc48 ML |
2624 | |
2625 | RETURN(); | |
74510d4b | 2626 | } |
863b35e6 | 2627 | |
970f279a | 2628 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2629 | { |
c33efc48 ML |
2630 | TRACE("%p", handler); |
2631 | ||
863b35e6 | 2632 | sp_debug_handler = handler; |
c33efc48 ML |
2633 | |
2634 | RETURN(); | |
863b35e6 ML |
2635 | } |
2636 | ||
970f279a | 2637 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2638 | { |
2639 | va_list args; | |
2640 | va_start(args, format); | |
2641 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2642 | fputs("sp: ", stderr); |
863b35e6 ML |
2643 | vfprintf(stderr, format, args); |
2644 | } | |
2645 | va_end(args); | |
2646 | } | |
524b0e14 | 2647 | |
970f279a | 2648 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2649 | { |
2650 | return SP_PACKAGE_VERSION_MAJOR; | |
2651 | } | |
2652 | ||
970f279a | 2653 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2654 | { |
2655 | return SP_PACKAGE_VERSION_MINOR; | |
2656 | } | |
2657 | ||
970f279a | 2658 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2659 | { |
2660 | return SP_PACKAGE_VERSION_MICRO; | |
2661 | } | |
2662 | ||
970f279a | 2663 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2664 | { |
2665 | return SP_PACKAGE_VERSION_STRING; | |
2666 | } | |
2667 | ||
970f279a | 2668 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2669 | { |
2670 | return SP_LIB_VERSION_CURRENT; | |
2671 | } | |
2672 | ||
970f279a | 2673 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2674 | { |
2675 | return SP_LIB_VERSION_REVISION; | |
2676 | } | |
2677 | ||
970f279a | 2678 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2679 | { |
2680 | return SP_LIB_VERSION_AGE; | |
2681 | } | |
2682 | ||
970f279a | 2683 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2684 | { |
2685 | return SP_LIB_VERSION_STRING; | |
2686 | } | |
2687 | ||
2688 | /** @} */ |