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