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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 | |
d54e9004 | 78 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 79 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 80 | |
5919c913 ML |
81 | len = strlen(portname) + 1; |
82 | ||
eac329d2 | 83 | if (!(port->name = malloc(len))) { |
d54e9004 | 84 | free(port); |
c33efc48 | 85 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
86 | } |
87 | ||
88 | memcpy(port->name, portname, len); | |
89 | ||
8f471c66 | 90 | #ifdef _WIN32 |
e31f2c6b | 91 | port->usb_path = NULL; |
8f471c66 ML |
92 | port->hdl = INVALID_HANDLE_VALUE; |
93 | #else | |
94 | port->fd = -1; | |
95 | #endif | |
96 | ||
e33dcf90 ML |
97 | port->description = NULL; |
98 | port->transport = SP_TRANSPORT_NATIVE; | |
99 | port->usb_bus = -1; | |
100 | port->usb_address = -1; | |
101 | port->usb_vid = -1; | |
102 | port->usb_pid = -1; | |
103 | port->usb_manufacturer = NULL; | |
104 | port->usb_product = NULL; | |
105 | port->usb_serial = NULL; | |
106 | port->bluetooth_address = NULL; | |
107 | ||
e4ce975a | 108 | #ifndef NO_PORT_METADATA |
e33dcf90 | 109 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
110 | sp_free_port(port); |
111 | return ret; | |
112 | } | |
e4ce975a | 113 | #endif |
a93fb468 | 114 | |
77f262c4 ML |
115 | *port_ptr = port; |
116 | ||
c33efc48 | 117 | RETURN_OK(); |
d54e9004 ML |
118 | } |
119 | ||
970f279a | 120 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
121 | { |
122 | TRACE("%p", port); | |
123 | ||
124 | if (!port) | |
125 | return NULL; | |
126 | ||
9caa2e86 | 127 | RETURN_STRING(port->name); |
1c5aae9d ML |
128 | } |
129 | ||
f1480939 | 130 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
131 | { |
132 | TRACE("%p", port); | |
133 | ||
134 | if (!port || !port->description) | |
135 | return NULL; | |
136 | ||
9caa2e86 | 137 | RETURN_STRING(port->description); |
a93fb468 AJ |
138 | } |
139 | ||
ad036cc8 | 140 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
141 | { |
142 | TRACE("%p", port); | |
143 | ||
144 | if (!port) | |
145 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
146 | ||
9caa2e86 | 147 | RETURN_INT(port->transport); |
a93fb468 AJ |
148 | } |
149 | ||
970f279a AJ |
150 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
151 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
152 | { |
153 | TRACE("%p", port); | |
154 | ||
155 | if (!port) | |
156 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
157 | if (port->transport != SP_TRANSPORT_USB) | |
158 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
159 | if (port->usb_bus < 0 || port->usb_address < 0) |
160 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 161 | |
dc422c04 UH |
162 | if (usb_bus) |
163 | *usb_bus = port->usb_bus; | |
164 | if (usb_address) | |
165 | *usb_address = port->usb_address; | |
a93fb468 AJ |
166 | |
167 | RETURN_OK(); | |
168 | } | |
169 | ||
970f279a AJ |
170 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
171 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
172 | { |
173 | TRACE("%p", port); | |
174 | ||
175 | if (!port) | |
176 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
177 | if (port->transport != SP_TRANSPORT_USB) | |
178 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
179 | if (port->usb_vid < 0 || port->usb_pid < 0) |
180 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 181 | |
dc422c04 UH |
182 | if (usb_vid) |
183 | *usb_vid = port->usb_vid; | |
184 | if (usb_pid) | |
185 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
186 | |
187 | RETURN_OK(); | |
188 | } | |
189 | ||
970f279a | 190 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
191 | { |
192 | TRACE("%p", port); | |
193 | ||
194 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
195 | return NULL; | |
196 | ||
9caa2e86 | 197 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
198 | } |
199 | ||
970f279a | 200 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
201 | { |
202 | TRACE("%p", port); | |
203 | ||
204 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
205 | return NULL; | |
206 | ||
9caa2e86 | 207 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
208 | } |
209 | ||
970f279a | 210 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
211 | { |
212 | TRACE("%p", port); | |
213 | ||
214 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
215 | return NULL; | |
216 | ||
9caa2e86 | 217 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
218 | } |
219 | ||
970f279a | 220 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
221 | { |
222 | TRACE("%p", port); | |
223 | ||
224 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
225 | || !port->bluetooth_address) | |
226 | return NULL; | |
227 | ||
9caa2e86 | 228 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
229 | } |
230 | ||
970f279a AJ |
231 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
232 | void *result_ptr) | |
3c126654 | 233 | { |
00d8c56d | 234 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
235 | |
236 | if (!port) | |
237 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
238 | if (!result_ptr) |
239 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
240 | |
241 | #ifdef _WIN32 | |
242 | HANDLE *handle_ptr = result_ptr; | |
243 | *handle_ptr = port->hdl; | |
244 | #else | |
245 | int *fd_ptr = result_ptr; | |
246 | *fd_ptr = port->fd; | |
247 | #endif | |
248 | ||
249 | RETURN_OK(); | |
250 | } | |
251 | ||
970f279a AJ |
252 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
253 | struct sp_port **copy_ptr) | |
32b5ac05 | 254 | { |
c33efc48 ML |
255 | TRACE("%p, %p", port, copy_ptr); |
256 | ||
32b5ac05 | 257 | if (!copy_ptr) |
c33efc48 | 258 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
259 | |
260 | *copy_ptr = NULL; | |
261 | ||
c33efc48 ML |
262 | if (!port) |
263 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
264 | ||
265 | if (!port->name) | |
266 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 267 | |
ea667be7 ML |
268 | DEBUG("Copying port structure"); |
269 | ||
9caa2e86 | 270 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
271 | } |
272 | ||
970f279a | 273 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 274 | { |
c33efc48 ML |
275 | TRACE("%p", port); |
276 | ||
00d8c56d | 277 | if (!port) { |
c33efc48 ML |
278 | DEBUG("Null port"); |
279 | RETURN(); | |
280 | } | |
e3b2f7a4 | 281 | |
ea667be7 ML |
282 | DEBUG("Freeing port structure"); |
283 | ||
e3b2f7a4 ML |
284 | if (port->name) |
285 | free(port->name); | |
a93fb468 AJ |
286 | if (port->description) |
287 | free(port->description); | |
288 | if (port->usb_manufacturer) | |
289 | free(port->usb_manufacturer); | |
290 | if (port->usb_product) | |
291 | free(port->usb_product); | |
292 | if (port->usb_serial) | |
293 | free(port->usb_serial); | |
294 | if (port->bluetooth_address) | |
295 | free(port->bluetooth_address); | |
296 | #ifdef _WIN32 | |
297 | if (port->usb_path) | |
298 | free(port->usb_path); | |
299 | #endif | |
e3b2f7a4 ML |
300 | |
301 | free(port); | |
c33efc48 ML |
302 | |
303 | RETURN(); | |
e3b2f7a4 ML |
304 | } |
305 | ||
970f279a AJ |
306 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
307 | const char *portname) | |
3b63f34d ML |
308 | { |
309 | void *tmp; | |
310 | unsigned int count; | |
f92f1f0c | 311 | |
3b63f34d | 312 | for (count = 0; list[count]; count++); |
d54e9004 | 313 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
314 | goto fail; |
315 | list = tmp; | |
77f262c4 | 316 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 317 | goto fail; |
db2794ce | 318 | list[count + 1] = NULL; |
3b63f34d | 319 | return list; |
f92f1f0c | 320 | |
3b63f34d ML |
321 | fail: |
322 | sp_free_port_list(list); | |
323 | return NULL; | |
324 | } | |
325 | ||
970f279a | 326 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 327 | { |
23e7fa37 | 328 | #ifndef NO_ENUMERATION |
d54e9004 | 329 | struct sp_port **list; |
48a4076f | 330 | int ret; |
23e7fa37 | 331 | #endif |
24c1a4bb | 332 | |
c33efc48 ML |
333 | TRACE("%p", list_ptr); |
334 | ||
dec10e31 ML |
335 | if (!list_ptr) |
336 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
337 | ||
63926415 UH |
338 | *list_ptr = NULL; |
339 | ||
8d12e620 ML |
340 | #ifdef NO_ENUMERATION |
341 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
342 | #else | |
ea667be7 ML |
343 | DEBUG("Enumerating ports"); |
344 | ||
8d12e620 | 345 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 346 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
347 | |
348 | list[0] = NULL; | |
3b63f34d | 349 | |
48a4076f | 350 | ret = list_ports(&list); |
77f262c4 | 351 | |
8d12e620 | 352 | if (ret == SP_OK) { |
77f262c4 | 353 | *list_ptr = list; |
8d12e620 ML |
354 | } else { |
355 | sp_free_port_list(list); | |
77f262c4 ML |
356 | *list_ptr = NULL; |
357 | } | |
8d12e620 ML |
358 | |
359 | RETURN_CODEVAL(ret); | |
360 | #endif | |
3b63f34d ML |
361 | } |
362 | ||
970f279a | 363 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
364 | { |
365 | unsigned int i; | |
f92f1f0c | 366 | |
c33efc48 ML |
367 | TRACE("%p", list); |
368 | ||
dec10e31 ML |
369 | if (!list) { |
370 | DEBUG("Null list"); | |
371 | RETURN(); | |
372 | } | |
373 | ||
ea667be7 ML |
374 | DEBUG("Freeing port list"); |
375 | ||
3b63f34d | 376 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 377 | sp_free_port(list[i]); |
3b63f34d | 378 | free(list); |
c33efc48 ML |
379 | |
380 | RETURN(); | |
3b63f34d ML |
381 | } |
382 | ||
c33efc48 | 383 | #define CHECK_PORT() do { \ |
dc422c04 | 384 | if (!port) \ |
c33efc48 | 385 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 386 | if (!port->name) \ |
dec10e31 ML |
387 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
388 | } while (0) | |
389 | #ifdef _WIN32 | |
390 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 391 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 392 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 393 | } while (0) |
74510d4b | 394 | #else |
dec10e31 | 395 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 396 | if (port->fd < 0) \ |
8062087a | 397 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 398 | } while (0) |
74510d4b | 399 | #endif |
dec10e31 ML |
400 | #define CHECK_OPEN_PORT() do { \ |
401 | CHECK_PORT(); \ | |
402 | CHECK_PORT_HANDLE(); \ | |
403 | } while (0) | |
74510d4b | 404 | |
47fcf8ec ML |
405 | #ifdef WIN32 |
406 | /** To be called after port receive buffer is emptied. */ | |
407 | static enum sp_return restart_wait(struct sp_port *port) | |
408 | { | |
409 | DWORD wait_result; | |
410 | ||
411 | if (port->wait_running) { | |
412 | /* Check status of running wait operation. */ | |
413 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
414 | &wait_result, FALSE)) { | |
415 | DEBUG("Previous wait completed"); | |
416 | port->wait_running = FALSE; | |
417 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
418 | DEBUG("Previous wait still running"); | |
419 | RETURN_OK(); | |
420 | } else { | |
421 | RETURN_FAIL("GetOverlappedResult() failed"); | |
422 | } | |
423 | } | |
424 | ||
425 | if (!port->wait_running) { | |
426 | /* Start new wait operation. */ | |
427 | if (WaitCommEvent(port->hdl, &port->events, | |
428 | &port->wait_ovl)) { | |
429 | DEBUG("New wait returned, events already pending"); | |
430 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
431 | DEBUG("New wait running in background"); | |
432 | port->wait_running = TRUE; | |
433 | } else { | |
434 | RETURN_FAIL("WaitCommEvent() failed"); | |
435 | } | |
436 | } | |
437 | ||
438 | RETURN_OK(); | |
439 | } | |
440 | #endif | |
441 | ||
970f279a | 442 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 443 | { |
bccc7c9f ML |
444 | struct port_data data; |
445 | struct sp_port_config config; | |
446 | enum sp_return ret; | |
447 | ||
00d8c56d | 448 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 449 | |
dec10e31 ML |
450 | CHECK_PORT(); |
451 | ||
276ef1b9 | 452 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 453 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 454 | |
7890cef6 | 455 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 456 | |
74510d4b | 457 | #ifdef _WIN32 |
537942c9 | 458 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 459 | char *escaped_port_name; |
537942c9 | 460 | COMSTAT status; |
99945a1f ML |
461 | |
462 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 463 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 464 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
465 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
466 | ||
74510d4b | 467 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 468 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
469 | if (flags & SP_MODE_READ) |
470 | desired_access |= GENERIC_READ; | |
471 | if (flags & SP_MODE_WRITE) | |
74510d4b | 472 | desired_access |= GENERIC_WRITE; |
74510d4b | 473 | |
99945a1f | 474 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 475 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
476 | |
477 | free(escaped_port_name); | |
478 | ||
74510d4b | 479 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 480 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
481 | |
482 | /* All timeouts initially disabled. */ | |
483 | port->timeouts.ReadIntervalTimeout = 0; | |
484 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
485 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
486 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
487 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 488 | |
e3dcf906 | 489 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
490 | sp_close(port); |
491 | RETURN_FAIL("SetCommTimeouts() failed"); | |
492 | } | |
e3dcf906 ML |
493 | |
494 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
495 | #define INIT_OVERLAPPED(ovl) do { \ |
496 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
497 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
498 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
499 | == INVALID_HANDLE_VALUE) { \ | |
500 | sp_close(port); \ | |
501 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
502 | } \ | |
503 | } while (0) | |
504 | ||
505 | INIT_OVERLAPPED(read_ovl); | |
506 | INIT_OVERLAPPED(write_ovl); | |
507 | INIT_OVERLAPPED(wait_ovl); | |
508 | ||
509 | /* Set event mask for RX and error events. */ | |
510 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 511 | sp_close(port); |
6f1186aa | 512 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 513 | } |
6f1186aa | 514 | |
e3dcf906 | 515 | port->writing = FALSE; |
47fcf8ec | 516 | port->wait_running = FALSE; |
e3dcf906 | 517 | |
47fcf8ec ML |
518 | ret = restart_wait(port); |
519 | ||
520 | if (ret < 0) { | |
521 | sp_close(port); | |
522 | RETURN_CODEVAL(ret); | |
523 | } | |
74510d4b | 524 | #else |
e3dcf906 | 525 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 526 | |
74510d4b | 527 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 528 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 529 | flags_local |= O_RDWR; |
a036341b | 530 | else if (flags & SP_MODE_READ) |
74510d4b | 531 | flags_local |= O_RDONLY; |
a036341b ML |
532 | else if (flags & SP_MODE_WRITE) |
533 | flags_local |= O_WRONLY; | |
74510d4b ML |
534 | |
535 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 536 | RETURN_FAIL("open() failed"); |
bccc7c9f | 537 | #endif |
9cb98459 | 538 | |
e33ab9aa ML |
539 | ret = get_config(port, &data, &config); |
540 | ||
eac329d2 | 541 | if (ret < 0) { |
e33ab9aa | 542 | sp_close(port); |
c33efc48 | 543 | RETURN_CODEVAL(ret); |
e33ab9aa | 544 | } |
9cb98459 | 545 | |
bccc7c9f ML |
546 | /* Set sane port settings. */ |
547 | #ifdef _WIN32 | |
548 | data.dcb.fBinary = TRUE; | |
549 | data.dcb.fDsrSensitivity = FALSE; | |
550 | data.dcb.fErrorChar = FALSE; | |
551 | data.dcb.fNull = FALSE; | |
34442106 | 552 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 553 | #else |
b251be4b | 554 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
555 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
556 | #ifdef IUCLC | |
557 | data.term.c_iflag &= ~IUCLC; | |
558 | #endif | |
559 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
560 | #ifdef OLCUC | |
561 | data.term.c_oflag &= ~OLCUC; | |
562 | #endif | |
563 | #ifdef NLDLY | |
564 | data.term.c_oflag &= ~NLDLY; | |
565 | #endif | |
566 | #ifdef CRDLY | |
567 | data.term.c_oflag &= ~CRDLY; | |
568 | #endif | |
569 | #ifdef TABDLY | |
570 | data.term.c_oflag &= ~TABDLY; | |
571 | #endif | |
572 | #ifdef BSDLY | |
573 | data.term.c_oflag &= ~BSDLY; | |
574 | #endif | |
575 | #ifdef VTDLY | |
576 | data.term.c_oflag &= ~VTDLY; | |
577 | #endif | |
578 | #ifdef FFDLY | |
579 | data.term.c_oflag &= ~FFDLY; | |
580 | #endif | |
b251be4b | 581 | #ifdef OFILL |
9cb98459 ML |
582 | data.term.c_oflag &= ~OFILL; |
583 | #endif | |
c3e05092 | 584 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 585 | data.term.c_cc[VMIN] = 0; |
b251be4b | 586 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 587 | |
b251be4b ML |
588 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
589 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 590 | #endif |
9cb98459 | 591 | |
537942c9 | 592 | #ifdef _WIN32 |
1a2a1544 UH |
593 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
594 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
595 | #endif |
596 | ||
e33ab9aa ML |
597 | ret = set_config(port, &data, &config); |
598 | ||
eac329d2 | 599 | if (ret < 0) { |
e33ab9aa | 600 | sp_close(port); |
c33efc48 | 601 | RETURN_CODEVAL(ret); |
e33ab9aa | 602 | } |
74510d4b | 603 | |
c33efc48 | 604 | RETURN_OK(); |
74510d4b ML |
605 | } |
606 | ||
970f279a | 607 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 608 | { |
c33efc48 ML |
609 | TRACE("%p", port); |
610 | ||
dec10e31 | 611 | CHECK_OPEN_PORT(); |
74510d4b | 612 | |
7890cef6 | 613 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 614 | |
74510d4b ML |
615 | #ifdef _WIN32 |
616 | /* Returns non-zero upon success, 0 upon failure. */ | |
617 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 618 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 619 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
620 | |
621 | /* Close event handles for overlapped structures. */ | |
622 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
623 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
624 | CloseHandle(port->ovl.hEvent) == 0) \ | |
625 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
626 | } while (0) | |
627 | CLOSE_OVERLAPPED(read_ovl); | |
628 | CLOSE_OVERLAPPED(write_ovl); | |
629 | CLOSE_OVERLAPPED(wait_ovl); | |
630 | ||
74510d4b ML |
631 | #else |
632 | /* Returns 0 upon success, -1 upon failure. */ | |
633 | if (close(port->fd) == -1) | |
c33efc48 | 634 | RETURN_FAIL("close() failed"); |
8f471c66 | 635 | port->fd = -1; |
74510d4b ML |
636 | #endif |
637 | ||
c33efc48 | 638 | RETURN_OK(); |
74510d4b ML |
639 | } |
640 | ||
970f279a | 641 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 642 | { |
00d8c56d | 643 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 644 | |
dec10e31 ML |
645 | CHECK_OPEN_PORT(); |
646 | ||
647 | if (buffers > SP_BUF_BOTH) | |
648 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 649 | |
0ba3e49b | 650 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 651 | |
7890cef6 ML |
652 | DEBUG_FMT("Flushing %s buffers on port %s", |
653 | buffer_names[buffers], port->name); | |
ea667be7 | 654 | |
74510d4b | 655 | #ifdef _WIN32 |
fd8fd11a ML |
656 | DWORD flags = 0; |
657 | if (buffers & SP_BUF_INPUT) | |
658 | flags |= PURGE_RXCLEAR; | |
659 | if (buffers & SP_BUF_OUTPUT) | |
660 | flags |= PURGE_TXCLEAR; | |
661 | ||
74510d4b | 662 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 663 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 664 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
665 | |
666 | if (buffers & SP_BUF_INPUT) | |
667 | TRY(restart_wait(port)); | |
74510d4b | 668 | #else |
fd8fd11a | 669 | int flags = 0; |
ad749855 | 670 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 671 | flags = TCIOFLUSH; |
ad749855 | 672 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 673 | flags = TCIFLUSH; |
ad749855 | 674 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
675 | flags = TCOFLUSH; |
676 | ||
74510d4b | 677 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 678 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 679 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 680 | #endif |
c33efc48 | 681 | RETURN_OK(); |
74510d4b ML |
682 | } |
683 | ||
970f279a | 684 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 685 | { |
c33efc48 ML |
686 | TRACE("%p", port); |
687 | ||
dec10e31 | 688 | CHECK_OPEN_PORT(); |
69a3739c | 689 | |
7890cef6 | 690 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 691 | |
69a3739c ML |
692 | #ifdef _WIN32 |
693 | /* Returns non-zero upon success, 0 upon failure. */ | |
694 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 695 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 696 | RETURN_OK(); |
69a3739c | 697 | #else |
2c827b21 ML |
698 | int result; |
699 | while (1) { | |
33fd8804 ML |
700 | #ifdef __ANDROID__ |
701 | int arg = 1; | |
702 | result = ioctl(port->fd, TCSBRK, &arg); | |
703 | #else | |
2c827b21 | 704 | result = tcdrain(port->fd); |
33fd8804 | 705 | #endif |
2c827b21 ML |
706 | if (result < 0) { |
707 | if (errno == EINTR) { | |
708 | DEBUG("tcdrain() was interrupted"); | |
709 | continue; | |
710 | } else { | |
711 | RETURN_FAIL("tcdrain() failed"); | |
712 | } | |
713 | } else { | |
714 | RETURN_OK(); | |
715 | } | |
716 | } | |
69a3739c | 717 | #endif |
69a3739c ML |
718 | } |
719 | ||
970f279a | 720 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 721 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 722 | { |
1b91c6ea | 723 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
724 | |
725 | CHECK_OPEN_PORT(); | |
726 | ||
727 | if (!buf) | |
728 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
729 | ||
1b91c6ea | 730 | if (timeout_ms) |
7890cef6 | 731 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 732 | count, port->name, timeout_ms); |
e3dcf906 | 733 | else |
7890cef6 ML |
734 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
735 | count, port->name); | |
e3dcf906 ML |
736 | |
737 | if (count == 0) | |
9caa2e86 | 738 | RETURN_INT(0); |
e3dcf906 ML |
739 | |
740 | #ifdef _WIN32 | |
741 | DWORD bytes_written = 0; | |
742 | BOOL result; | |
743 | ||
744 | /* Wait for previous non-blocking write to complete, if any. */ | |
745 | if (port->writing) { | |
746 | DEBUG("Waiting for previous write to complete"); | |
747 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
748 | port->writing = 0; | |
749 | if (!result) | |
750 | RETURN_FAIL("Previous write failed to complete"); | |
751 | DEBUG("Previous write completed"); | |
752 | } | |
753 | ||
754 | /* Set timeout. */ | |
27a58c05 ML |
755 | if (port->timeouts.WriteTotalTimeoutConstant != timeout_ms) { |
756 | port->timeouts.WriteTotalTimeoutConstant = timeout_ms; | |
757 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
758 | RETURN_FAIL("SetCommTimeouts() failed"); | |
759 | } | |
e3dcf906 ML |
760 | |
761 | /* Start write. */ | |
bbe566fe | 762 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl)) { |
e3dcf906 | 763 | DEBUG("Write completed immediately"); |
9caa2e86 | 764 | RETURN_INT(count); |
bbe566fe ML |
765 | } else if (GetLastError() == ERROR_IO_PENDING) { |
766 | DEBUG("Waiting for write to complete"); | |
27911925 ML |
767 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) |
768 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
769 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
770 | RETURN_INT(bytes_written); | |
771 | } else { | |
772 | RETURN_FAIL("WriteFile() failed"); | |
e3dcf906 ML |
773 | } |
774 | #else | |
775 | size_t bytes_written = 0; | |
776 | unsigned char *ptr = (unsigned char *) buf; | |
777 | struct timeval start, delta, now, end = {0, 0}; | |
76222ee5 | 778 | int started = 0; |
e3dcf906 ML |
779 | fd_set fds; |
780 | int result; | |
781 | ||
1b91c6ea | 782 | if (timeout_ms) { |
e3dcf906 ML |
783 | /* Get time at start of operation. */ |
784 | gettimeofday(&start, NULL); | |
785 | /* Define duration of timeout. */ | |
1b91c6ea UH |
786 | delta.tv_sec = timeout_ms / 1000; |
787 | delta.tv_usec = (timeout_ms % 1000) * 1000; | |
e3dcf906 ML |
788 | /* Calculate time at which we should give up. */ |
789 | timeradd(&start, &delta, &end); | |
790 | } | |
791 | ||
772c5861 ML |
792 | FD_ZERO(&fds); |
793 | FD_SET(port->fd, &fds); | |
794 | ||
e3dcf906 | 795 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 796 | while (bytes_written < count) { |
76222ee5 ML |
797 | /* |
798 | * Check timeout only if we have run select() at least once, | |
799 | * to avoid any issues if a short timeout is reached before | |
800 | * select() is even run. | |
801 | */ | |
802 | if (timeout_ms && started) { | |
e3dcf906 | 803 | gettimeofday(&now, NULL); |
c3cee38c ML |
804 | if (timercmp(&now, &end, >)) |
805 | /* Timeout has expired. */ | |
806 | break; | |
e3dcf906 ML |
807 | timersub(&end, &now, &delta); |
808 | } | |
1b91c6ea | 809 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_ms ? &delta : NULL); |
76222ee5 | 810 | started = 1; |
63a17c64 ML |
811 | if (result < 0) { |
812 | if (errno == EINTR) { | |
813 | DEBUG("select() call was interrupted, repeating"); | |
814 | continue; | |
815 | } else { | |
816 | RETURN_FAIL("select() failed"); | |
817 | } | |
818 | } else if (result == 0) { | |
c3cee38c ML |
819 | /* Timeout has expired. */ |
820 | break; | |
e3dcf906 ML |
821 | } |
822 | ||
823 | /* Do write. */ | |
824 | result = write(port->fd, ptr, count - bytes_written); | |
825 | ||
826 | if (result < 0) { | |
827 | if (errno == EAGAIN) | |
828 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
829 | continue; | |
830 | else | |
831 | /* This is an actual failure. */ | |
832 | RETURN_FAIL("write() failed"); | |
833 | } | |
834 | ||
835 | bytes_written += result; | |
836 | ptr += result; | |
837 | } | |
838 | ||
c3cee38c ML |
839 | if (bytes_written < count) |
840 | DEBUG("Write timed out"); | |
841 | ||
9caa2e86 | 842 | RETURN_INT(bytes_written); |
e3dcf906 ML |
843 | #endif |
844 | } | |
845 | ||
970f279a AJ |
846 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
847 | const void *buf, size_t count) | |
74510d4b | 848 | { |
c33efc48 ML |
849 | TRACE("%p, %p, %d", port, buf, count); |
850 | ||
dec10e31 | 851 | CHECK_OPEN_PORT(); |
74510d4b ML |
852 | |
853 | if (!buf) | |
c33efc48 | 854 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 855 | |
7890cef6 | 856 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 857 | |
a3cb91f5 | 858 | if (count == 0) |
9caa2e86 | 859 | RETURN_INT(0); |
a3cb91f5 | 860 | |
74510d4b ML |
861 | #ifdef _WIN32 |
862 | DWORD written = 0; | |
0765af56 | 863 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 864 | |
e3dcf906 ML |
865 | /* Check whether previous write is complete. */ |
866 | if (port->writing) { | |
867 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
868 | DEBUG("Previous write completed"); | |
869 | port->writing = 0; | |
870 | } else { | |
871 | DEBUG("Previous write not complete"); | |
872 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 873 | RETURN_INT(0); |
a3cb91f5 | 874 | } |
e3dcf906 | 875 | } |
a3cb91f5 | 876 | |
e3dcf906 | 877 | /* Set timeout. */ |
27a58c05 ML |
878 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
879 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
880 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
881 | RETURN_FAIL("SetCommTimeouts() failed"); | |
882 | } | |
e3dcf906 | 883 | |
dc422c04 UH |
884 | /* |
885 | * Keep writing data until the OS has to actually start an async IO | |
886 | * for it. At that point we know the buffer is full. | |
887 | */ | |
888 | while (written < count) { | |
e3dcf906 ML |
889 | /* Copy first byte of user buffer. */ |
890 | port->pending_byte = *ptr++; | |
891 | ||
892 | /* Start asynchronous write. */ | |
893 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
894 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
895 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
896 | DEBUG("Asynchronous write completed immediately"); | |
897 | port->writing = 0; | |
898 | written++; | |
899 | continue; | |
900 | } else { | |
901 | DEBUG("Asynchronous write running"); | |
902 | port->writing = 1; | |
9caa2e86 | 903 | RETURN_INT(++written); |
64d99621 | 904 | } |
a3cb91f5 | 905 | } else { |
e3dcf906 ML |
906 | /* Actual failure of some kind. */ |
907 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 908 | } |
e3dcf906 | 909 | } else { |
9af8cff3 | 910 | DEBUG("Single byte written immediately"); |
e3dcf906 | 911 | written++; |
a3cb91f5 ML |
912 | } |
913 | } | |
914 | ||
9af8cff3 | 915 | DEBUG("All bytes written immediately"); |
e3dcf906 | 916 | |
9caa2e86 | 917 | RETURN_INT(written); |
74510d4b ML |
918 | #else |
919 | /* Returns the number of bytes written, or -1 upon failure. */ | |
920 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 921 | |
74510d4b | 922 | if (written < 0) |
c33efc48 | 923 | RETURN_FAIL("write() failed"); |
74510d4b | 924 | else |
9caa2e86 | 925 | RETURN_INT(written); |
74510d4b ML |
926 | #endif |
927 | } | |
928 | ||
94a314a8 ML |
929 | #ifdef _WIN32 |
930 | /* Restart wait operation if buffer was emptied. */ | |
931 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
932 | { | |
8ebfaf89 ML |
933 | DWORD errors; |
934 | COMSTAT comstat; | |
94a314a8 | 935 | |
21ae5ce1 ML |
936 | if (bytes_read == 0) |
937 | RETURN_OK(); | |
938 | ||
8ebfaf89 ML |
939 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
940 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 941 | |
8ebfaf89 | 942 | if (comstat.cbInQue == 0) |
94a314a8 ML |
943 | TRY(restart_wait(port)); |
944 | ||
945 | RETURN_OK(); | |
946 | } | |
947 | #endif | |
948 | ||
970f279a | 949 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 950 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 951 | { |
1b91c6ea | 952 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
953 | |
954 | CHECK_OPEN_PORT(); | |
955 | ||
956 | if (!buf) | |
957 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
958 | ||
1b91c6ea | 959 | if (timeout_ms) |
7890cef6 | 960 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 961 | count, port->name, timeout_ms); |
e3dcf906 | 962 | else |
7890cef6 ML |
963 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
964 | count, port->name); | |
e3dcf906 ML |
965 | |
966 | if (count == 0) | |
9caa2e86 | 967 | RETURN_INT(0); |
e3dcf906 ML |
968 | |
969 | #ifdef _WIN32 | |
970 | DWORD bytes_read = 0; | |
971 | ||
972 | /* Set timeout. */ | |
27a58c05 | 973 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 974 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
975 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
976 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 977 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
978 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
979 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
980 | RETURN_FAIL("SetCommTimeouts() failed"); | |
981 | } | |
e3dcf906 ML |
982 | |
983 | /* Start read. */ | |
bbe566fe | 984 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { |
e3dcf906 | 985 | DEBUG("Read completed immediately"); |
6f1186aa | 986 | bytes_read = count; |
bbe566fe ML |
987 | } else if (GetLastError() == ERROR_IO_PENDING) { |
988 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
989 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
990 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
991 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
992 | } else { | |
993 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
994 | } |
995 | ||
94a314a8 | 996 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 997 | |
9caa2e86 | 998 | RETURN_INT(bytes_read); |
6f1186aa | 999 | |
e3dcf906 ML |
1000 | #else |
1001 | size_t bytes_read = 0; | |
1002 | unsigned char *ptr = (unsigned char *) buf; | |
1003 | struct timeval start, delta, now, end = {0, 0}; | |
76222ee5 | 1004 | int started = 0; |
e3dcf906 ML |
1005 | fd_set fds; |
1006 | int result; | |
1007 | ||
1b91c6ea | 1008 | if (timeout_ms) { |
e3dcf906 ML |
1009 | /* Get time at start of operation. */ |
1010 | gettimeofday(&start, NULL); | |
1011 | /* Define duration of timeout. */ | |
1b91c6ea UH |
1012 | delta.tv_sec = timeout_ms / 1000; |
1013 | delta.tv_usec = (timeout_ms % 1000) * 1000; | |
e3dcf906 ML |
1014 | /* Calculate time at which we should give up. */ |
1015 | timeradd(&start, &delta, &end); | |
1016 | } | |
1017 | ||
772c5861 ML |
1018 | FD_ZERO(&fds); |
1019 | FD_SET(port->fd, &fds); | |
1020 | ||
e3dcf906 | 1021 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1022 | while (bytes_read < count) { |
76222ee5 ML |
1023 | /* |
1024 | * Check timeout only if we have run select() at least once, | |
1025 | * to avoid any issues if a short timeout is reached before | |
1026 | * select() is even run. | |
1027 | */ | |
1028 | if (timeout_ms && started) { | |
e3dcf906 ML |
1029 | gettimeofday(&now, NULL); |
1030 | if (timercmp(&now, &end, >)) | |
1031 | /* Timeout has expired. */ | |
c3cee38c | 1032 | break; |
e3dcf906 ML |
1033 | timersub(&end, &now, &delta); |
1034 | } | |
1b91c6ea | 1035 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_ms ? &delta : NULL); |
76222ee5 | 1036 | started = 1; |
63a17c64 ML |
1037 | if (result < 0) { |
1038 | if (errno == EINTR) { | |
1039 | DEBUG("select() call was interrupted, repeating"); | |
1040 | continue; | |
1041 | } else { | |
1042 | RETURN_FAIL("select() failed"); | |
1043 | } | |
1044 | } else if (result == 0) { | |
c3cee38c ML |
1045 | /* Timeout has expired. */ |
1046 | break; | |
e3dcf906 ML |
1047 | } |
1048 | ||
1049 | /* Do read. */ | |
1050 | result = read(port->fd, ptr, count - bytes_read); | |
1051 | ||
1052 | if (result < 0) { | |
1053 | if (errno == EAGAIN) | |
76222ee5 ML |
1054 | /* |
1055 | * This shouldn't happen because we did a | |
1056 | * select() first, but handle anyway. | |
1057 | */ | |
e3dcf906 ML |
1058 | continue; |
1059 | else | |
1060 | /* This is an actual failure. */ | |
1061 | RETURN_FAIL("read() failed"); | |
1062 | } | |
1063 | ||
1064 | bytes_read += result; | |
1065 | ptr += result; | |
1066 | } | |
1067 | ||
c3cee38c ML |
1068 | if (bytes_read < count) |
1069 | DEBUG("Read timed out"); | |
1070 | ||
9caa2e86 | 1071 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1072 | #endif |
1073 | } | |
1074 | ||
e5c2630e ML |
1075 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1076 | size_t count, unsigned int timeout_ms) | |
1077 | { | |
1078 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1079 | ||
1080 | CHECK_OPEN_PORT(); | |
1081 | ||
1082 | if (!buf) | |
1083 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1084 | ||
1085 | if (count == 0) | |
1086 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1087 | ||
1088 | if (timeout_ms) | |
1089 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1090 | count, port->name, timeout_ms); | |
1091 | else | |
1092 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1093 | count, port->name); | |
1094 | ||
1095 | #ifdef _WIN32 | |
1096 | DWORD bytes_read = 0; | |
1097 | ||
1098 | /* If timeout_ms == 0, set maximum timeout. */ | |
1099 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1100 | ||
1101 | /* Set timeout. */ | |
1102 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1103 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1104 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1105 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1106 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1107 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1108 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1109 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1110 | } | |
1111 | ||
1112 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1113 | while (bytes_read == 0) { | |
1114 | /* Start read. */ | |
1115 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { | |
1116 | DEBUG("Read completed immediately"); | |
1117 | bytes_read = count; | |
1118 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
1119 | DEBUG("Waiting for read to complete"); | |
1120 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1121 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1122 | if (bytes_read > 0) { | |
1123 | DEBUG("Read completed"); | |
1124 | } else if (timeout_ms > 0) { | |
1125 | DEBUG("Read timed out"); | |
1126 | break; | |
1127 | } else { | |
1128 | DEBUG("Restarting read"); | |
1129 | } | |
1130 | } else { | |
1131 | RETURN_FAIL("ReadFile() failed"); | |
1132 | } | |
1133 | } | |
1134 | ||
1135 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1136 | ||
1137 | RETURN_INT(bytes_read); | |
1138 | ||
1139 | #else | |
1140 | size_t bytes_read = 0; | |
1141 | struct timeval start, delta, now, end = {0, 0}; | |
1142 | int started = 0; | |
1143 | fd_set fds; | |
1144 | int result; | |
1145 | ||
1146 | if (timeout_ms) { | |
1147 | /* Get time at start of operation. */ | |
1148 | gettimeofday(&start, NULL); | |
1149 | /* Define duration of timeout. */ | |
1150 | delta.tv_sec = timeout_ms / 1000; | |
1151 | delta.tv_usec = (timeout_ms % 1000) * 1000; | |
1152 | /* Calculate time at which we should give up. */ | |
1153 | timeradd(&start, &delta, &end); | |
1154 | } | |
1155 | ||
1156 | FD_ZERO(&fds); | |
1157 | FD_SET(port->fd, &fds); | |
1158 | ||
1159 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1160 | while (bytes_read == 0) { | |
1161 | /* | |
1162 | * Check timeout only if we have run select() at least once, | |
1163 | * to avoid any issues if a short timeout is reached before | |
1164 | * select() is even run. | |
1165 | */ | |
1166 | if (timeout_ms && started) { | |
1167 | gettimeofday(&now, NULL); | |
1168 | if (timercmp(&now, &end, >)) | |
1169 | /* Timeout has expired. */ | |
1170 | break; | |
1171 | timersub(&end, &now, &delta); | |
1172 | } | |
1173 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_ms ? &delta : NULL); | |
1174 | started = 1; | |
1175 | if (result < 0) { | |
1176 | if (errno == EINTR) { | |
1177 | DEBUG("select() call was interrupted, repeating"); | |
1178 | continue; | |
1179 | } else { | |
1180 | RETURN_FAIL("select() failed"); | |
1181 | } | |
1182 | } else if (result == 0) { | |
1183 | /* Timeout has expired. */ | |
1184 | break; | |
1185 | } | |
1186 | ||
1187 | /* Do read. */ | |
1188 | result = read(port->fd, buf, count); | |
1189 | ||
1190 | if (result < 0) { | |
1191 | if (errno == EAGAIN) | |
1192 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1193 | continue; | |
1194 | else | |
1195 | /* This is an actual failure. */ | |
1196 | RETURN_FAIL("read() failed"); | |
1197 | } | |
1198 | ||
1199 | bytes_read = result; | |
1200 | } | |
1201 | ||
1202 | if (bytes_read == 0) | |
1203 | DEBUG("Read timed out"); | |
1204 | ||
1205 | RETURN_INT(bytes_read); | |
1206 | #endif | |
1207 | } | |
1208 | ||
970f279a AJ |
1209 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1210 | size_t count) | |
74510d4b | 1211 | { |
c33efc48 ML |
1212 | TRACE("%p, %p, %d", port, buf, count); |
1213 | ||
dec10e31 | 1214 | CHECK_OPEN_PORT(); |
74510d4b ML |
1215 | |
1216 | if (!buf) | |
c33efc48 | 1217 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1218 | |
7890cef6 | 1219 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1220 | |
74510d4b | 1221 | #ifdef _WIN32 |
e3dcf906 | 1222 | DWORD bytes_read; |
f92f1f0c | 1223 | |
e3dcf906 | 1224 | /* Set timeout. */ |
27a58c05 | 1225 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1226 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1227 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1228 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1229 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1230 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1231 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1232 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1233 | } | |
e3dcf906 ML |
1234 | |
1235 | /* Do read. */ | |
1236 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
ae2c5825 ML |
1237 | if (GetLastError() != ERROR_IO_PENDING) |
1238 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1239 | |
1240 | /* Get number of bytes read. */ | |
ae2c5825 | 1241 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1242 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1243 | |
94a314a8 | 1244 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1245 | |
9caa2e86 | 1246 | RETURN_INT(bytes_read); |
74510d4b ML |
1247 | #else |
1248 | ssize_t bytes_read; | |
f92f1f0c | 1249 | |
74510d4b | 1250 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1251 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1252 | if (errno == EAGAIN) |
1253 | /* No bytes available. */ | |
33d5ff47 ML |
1254 | bytes_read = 0; |
1255 | else | |
1256 | /* This is an actual failure. */ | |
1257 | RETURN_FAIL("read() failed"); | |
1258 | } | |
9caa2e86 | 1259 | RETURN_INT(bytes_read); |
74510d4b ML |
1260 | #endif |
1261 | } | |
1262 | ||
970f279a | 1263 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1264 | { |
1265 | TRACE("%p", port); | |
1266 | ||
1267 | CHECK_OPEN_PORT(); | |
1268 | ||
7890cef6 | 1269 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1270 | |
1271 | #ifdef _WIN32 | |
1272 | DWORD errors; | |
1273 | COMSTAT comstat; | |
1274 | ||
1275 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1276 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1277 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1278 | #else |
1279 | int bytes_waiting; | |
1280 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1281 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1282 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1283 | #endif |
1284 | } | |
1285 | ||
970f279a | 1286 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1287 | { |
1288 | TRACE("%p", port); | |
1289 | ||
1290 | CHECK_OPEN_PORT(); | |
1291 | ||
7890cef6 | 1292 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1293 | |
1294 | #ifdef _WIN32 | |
1295 | DWORD errors; | |
1296 | COMSTAT comstat; | |
1297 | ||
1298 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1299 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1300 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1301 | #else |
1302 | int bytes_waiting; | |
1303 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1304 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1305 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1306 | #endif |
1307 | } | |
1308 | ||
970f279a | 1309 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1310 | { |
1311 | struct sp_event_set *result; | |
1312 | ||
1313 | TRACE("%p", result_ptr); | |
1314 | ||
1315 | if (!result_ptr) | |
1316 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1317 | ||
1318 | *result_ptr = NULL; | |
1319 | ||
1320 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1321 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1322 | ||
1323 | memset(result, 0, sizeof(struct sp_event_set)); | |
1324 | ||
1325 | *result_ptr = result; | |
1326 | ||
1327 | RETURN_OK(); | |
1328 | } | |
1329 | ||
1330 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1331 | event_handle handle, enum sp_event mask) | |
1332 | { | |
1333 | void *new_handles; | |
1334 | enum sp_event *new_masks; | |
1335 | ||
1336 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1337 | ||
1338 | if (!(new_handles = realloc(event_set->handles, | |
1339 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1340 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1341 | |
ac323d80 UH |
1342 | event_set->handles = new_handles; |
1343 | ||
6f1186aa | 1344 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1345 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1346 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1347 | |
6f1186aa ML |
1348 | event_set->masks = new_masks; |
1349 | ||
1350 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1351 | event_set->masks[event_set->count] = mask; | |
1352 | ||
1353 | event_set->count++; | |
1354 | ||
1355 | RETURN_OK(); | |
1356 | } | |
1357 | ||
970f279a | 1358 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1359 | const struct sp_port *port, enum sp_event mask) |
1360 | { | |
1361 | TRACE("%p, %p, %d", event_set, port, mask); | |
1362 | ||
1363 | if (!event_set) | |
1364 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1365 | ||
1366 | if (!port) | |
1367 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1368 | ||
1369 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1370 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1371 | ||
1372 | if (!mask) | |
1373 | RETURN_OK(); | |
1374 | ||
1375 | #ifdef _WIN32 | |
1376 | enum sp_event handle_mask; | |
1377 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1378 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1379 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1380 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1381 | #else | |
1382 | TRY(add_handle(event_set, port->fd, mask)); | |
1383 | #endif | |
1384 | ||
1385 | RETURN_OK(); | |
1386 | } | |
1387 | ||
970f279a | 1388 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1389 | { |
1390 | TRACE("%p", event_set); | |
1391 | ||
1392 | if (!event_set) { | |
1393 | DEBUG("Null event set"); | |
1394 | RETURN(); | |
1395 | } | |
1396 | ||
1397 | DEBUG("Freeing event set"); | |
1398 | ||
1399 | if (event_set->handles) | |
1400 | free(event_set->handles); | |
1401 | if (event_set->masks) | |
1402 | free(event_set->masks); | |
1403 | ||
1404 | free(event_set); | |
1405 | ||
1406 | RETURN(); | |
1407 | } | |
1408 | ||
970f279a | 1409 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1410 | unsigned int timeout_ms) |
6f1186aa | 1411 | { |
1b91c6ea | 1412 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1413 | |
1414 | if (!event_set) | |
1415 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1416 | ||
1417 | #ifdef _WIN32 | |
1418 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1419 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1420 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1421 | ||
1422 | RETURN_OK(); | |
1423 | #else | |
1424 | struct timeval start, delta, now, end = {0, 0}; | |
127d8d0c ML |
1425 | const struct timeval max_delta = { |
1426 | (INT_MAX / 1000), (INT_MAX % 1000) * 1000}; | |
1427 | int started = 0, timeout_overflow = 0; | |
1b91c6ea | 1428 | int result, timeout_remaining_ms; |
6f1186aa ML |
1429 | struct pollfd *pollfds; |
1430 | unsigned int i; | |
1431 | ||
1432 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1433 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1434 | ||
1435 | for (i = 0; i < event_set->count; i++) { | |
1436 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1437 | pollfds[i].events = 0; | |
1438 | pollfds[i].revents = 0; | |
1439 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1440 | pollfds[i].events |= POLLIN; | |
1441 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1442 | pollfds[i].events |= POLLOUT; | |
1443 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1444 | pollfds[i].events |= POLLERR; | |
1445 | } | |
1446 | ||
1b91c6ea | 1447 | if (timeout_ms) { |
6f1186aa ML |
1448 | /* Get time at start of operation. */ |
1449 | gettimeofday(&start, NULL); | |
1450 | /* Define duration of timeout. */ | |
1b91c6ea UH |
1451 | delta.tv_sec = timeout_ms / 1000; |
1452 | delta.tv_usec = (timeout_ms % 1000) * 1000; | |
6f1186aa ML |
1453 | /* Calculate time at which we should give up. */ |
1454 | timeradd(&start, &delta, &end); | |
1455 | } | |
1456 | ||
1457 | /* Loop until an event occurs. */ | |
dc422c04 | 1458 | while (1) { |
76222ee5 ML |
1459 | /* |
1460 | * Check timeout only if we have run poll() at least once, | |
1461 | * to avoid any issues if a short timeout is reached before | |
1462 | * poll() is even run. | |
1463 | */ | |
6b8eee06 ML |
1464 | if (!timeout_ms) { |
1465 | timeout_remaining_ms = -1; | |
1466 | } else if (!started) { | |
127d8d0c ML |
1467 | timeout_overflow = (timeout_ms > INT_MAX); |
1468 | timeout_remaining_ms = timeout_overflow ? INT_MAX : timeout_ms; | |
6b8eee06 | 1469 | } else { |
6f1186aa ML |
1470 | gettimeofday(&now, NULL); |
1471 | if (timercmp(&now, &end, >)) { | |
dc422c04 | 1472 | DEBUG("Wait timed out"); |
6f1186aa ML |
1473 | break; |
1474 | } | |
1475 | timersub(&end, &now, &delta); | |
127d8d0c ML |
1476 | if ((timeout_overflow = timercmp(&delta, &max_delta, >))) |
1477 | delta = max_delta; | |
1b91c6ea | 1478 | timeout_remaining_ms = delta.tv_sec * 1000 + delta.tv_usec / 1000; |
6f1186aa ML |
1479 | } |
1480 | ||
6b8eee06 | 1481 | result = poll(pollfds, event_set->count, timeout_remaining_ms); |
76222ee5 | 1482 | started = 1; |
6f1186aa ML |
1483 | |
1484 | if (result < 0) { | |
1485 | if (errno == EINTR) { | |
1486 | DEBUG("poll() call was interrupted, repeating"); | |
1487 | continue; | |
1488 | } else { | |
1489 | free(pollfds); | |
1490 | RETURN_FAIL("poll() failed"); | |
1491 | } | |
1492 | } else if (result == 0) { | |
1493 | DEBUG("poll() timed out"); | |
127d8d0c ML |
1494 | if (!timeout_overflow) |
1495 | break; | |
6f1186aa ML |
1496 | } else { |
1497 | DEBUG("poll() completed"); | |
1498 | break; | |
1499 | } | |
1500 | } | |
1501 | ||
1502 | free(pollfds); | |
1503 | RETURN_OK(); | |
1504 | #endif | |
1505 | } | |
1506 | ||
5cea279a | 1507 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1508 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1509 | { | |
1510 | void *data; | |
1511 | ||
c33efc48 ML |
1512 | TRACE("%d, %p", fd, baudrate); |
1513 | ||
ea667be7 ML |
1514 | DEBUG("Getting baud rate"); |
1515 | ||
7a6d2196 | 1516 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1517 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1518 | |
8d43110a ML |
1519 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1520 | free(data); | |
dc422c04 | 1521 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1522 | } |
7a6d2196 ML |
1523 | |
1524 | *baudrate = get_termios_speed(data); | |
1525 | ||
8d43110a ML |
1526 | free(data); |
1527 | ||
c33efc48 | 1528 | RETURN_OK(); |
7a6d2196 ML |
1529 | } |
1530 | ||
1531 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1532 | { | |
1533 | void *data; | |
1534 | ||
c33efc48 ML |
1535 | TRACE("%d, %d", fd, baudrate); |
1536 | ||
ea667be7 ML |
1537 | DEBUG("Getting baud rate"); |
1538 | ||
7a6d2196 | 1539 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1540 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1541 | |
8d43110a ML |
1542 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1543 | free(data); | |
dc422c04 | 1544 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1545 | } |
7a6d2196 | 1546 | |
ea667be7 ML |
1547 | DEBUG("Setting baud rate"); |
1548 | ||
7a6d2196 ML |
1549 | set_termios_speed(data, baudrate); |
1550 | ||
8d43110a ML |
1551 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1552 | free(data); | |
dc422c04 | 1553 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1554 | } |
1555 | ||
1556 | free(data); | |
7a6d2196 | 1557 | |
c33efc48 | 1558 | RETURN_OK(); |
7a6d2196 | 1559 | } |
5cea279a | 1560 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1561 | |
1562 | #ifdef USE_TERMIOX | |
bd791fe1 | 1563 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1564 | { |
bd791fe1 | 1565 | void *termx; |
40978c2b | 1566 | |
bd791fe1 | 1567 | TRACE("%d, %p", fd, data); |
c33efc48 | 1568 | |
ea667be7 ML |
1569 | DEBUG("Getting advanced flow control"); |
1570 | ||
bd791fe1 | 1571 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1572 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1573 | |
bd791fe1 ML |
1574 | if (ioctl(fd, TCGETX, termx) < 0) { |
1575 | free(termx); | |
dc422c04 | 1576 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1577 | } |
40978c2b | 1578 | |
bd791fe1 ML |
1579 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1580 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1581 | |
bd791fe1 | 1582 | free(termx); |
8d43110a | 1583 | |
c33efc48 | 1584 | RETURN_OK(); |
40978c2b ML |
1585 | } |
1586 | ||
bd791fe1 | 1587 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1588 | { |
bd791fe1 | 1589 | void *termx; |
40978c2b | 1590 | |
bd791fe1 | 1591 | TRACE("%d, %p", fd, data); |
c33efc48 | 1592 | |
ea667be7 ML |
1593 | DEBUG("Getting advanced flow control"); |
1594 | ||
bd791fe1 | 1595 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1596 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1597 | |
bd791fe1 ML |
1598 | if (ioctl(fd, TCGETX, termx) < 0) { |
1599 | free(termx); | |
dc422c04 | 1600 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1601 | } |
40978c2b | 1602 | |
ea667be7 ML |
1603 | DEBUG("Setting advanced flow control"); |
1604 | ||
bd791fe1 ML |
1605 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1606 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1607 | |
bd791fe1 ML |
1608 | if (ioctl(fd, TCSETX, termx) < 0) { |
1609 | free(termx); | |
dc422c04 | 1610 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1611 | } |
1612 | ||
bd791fe1 | 1613 | free(termx); |
40978c2b | 1614 | |
c33efc48 | 1615 | RETURN_OK(); |
40978c2b ML |
1616 | } |
1617 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1618 | |
eb6ed20f ML |
1619 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1620 | struct sp_port_config *config) | |
8094e4a0 | 1621 | { |
da2748bf | 1622 | unsigned int i; |
cbf628c7 | 1623 | |
c33efc48 ML |
1624 | TRACE("%p, %p, %p", port, data, config); |
1625 | ||
7890cef6 | 1626 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1627 | |
8094e4a0 | 1628 | #ifdef _WIN32 |
e33ab9aa | 1629 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1630 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1631 | |
067417af | 1632 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1633 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1634 | config->baudrate = std_baudrates[i].value; |
1635 | break; | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | if (i == NUM_STD_BAUDRATES) | |
1640 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1641 | config->baudrate = data->dcb.BaudRate; |
067417af | 1642 | |
e33ab9aa | 1643 | config->bits = data->dcb.ByteSize; |
067417af | 1644 | |
e33ab9aa ML |
1645 | if (data->dcb.fParity) |
1646 | switch (data->dcb.Parity) { | |
067417af ML |
1647 | case NOPARITY: |
1648 | config->parity = SP_PARITY_NONE; | |
1649 | break; | |
e432ce60 ML |
1650 | case ODDPARITY: |
1651 | config->parity = SP_PARITY_ODD; | |
1652 | break; | |
067417af ML |
1653 | case EVENPARITY: |
1654 | config->parity = SP_PARITY_EVEN; | |
1655 | break; | |
e432ce60 ML |
1656 | case MARKPARITY: |
1657 | config->parity = SP_PARITY_MARK; | |
1658 | break; | |
1659 | case SPACEPARITY: | |
1660 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1661 | break; |
1662 | default: | |
1663 | config->parity = -1; | |
1664 | } | |
1665 | else | |
1666 | config->parity = SP_PARITY_NONE; | |
1667 | ||
e33ab9aa | 1668 | switch (data->dcb.StopBits) { |
067417af ML |
1669 | case ONESTOPBIT: |
1670 | config->stopbits = 1; | |
1671 | break; | |
1672 | case TWOSTOPBITS: | |
1673 | config->stopbits = 2; | |
1674 | break; | |
1675 | default: | |
1676 | config->stopbits = -1; | |
1677 | } | |
1678 | ||
e33ab9aa | 1679 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1680 | case RTS_CONTROL_DISABLE: |
1681 | config->rts = SP_RTS_OFF; | |
1682 | break; | |
1683 | case RTS_CONTROL_ENABLE: | |
1684 | config->rts = SP_RTS_ON; | |
1685 | break; | |
1686 | case RTS_CONTROL_HANDSHAKE: | |
1687 | config->rts = SP_RTS_FLOW_CONTROL; | |
1688 | break; | |
1689 | default: | |
1690 | config->rts = -1; | |
067417af ML |
1691 | } |
1692 | ||
e33ab9aa | 1693 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1694 | |
e33ab9aa | 1695 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1696 | case DTR_CONTROL_DISABLE: |
1697 | config->dtr = SP_DTR_OFF; | |
1698 | break; | |
1699 | case DTR_CONTROL_ENABLE: | |
1700 | config->dtr = SP_DTR_ON; | |
1701 | break; | |
1702 | case DTR_CONTROL_HANDSHAKE: | |
1703 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1704 | break; | |
1705 | default: | |
1706 | config->dtr = -1; | |
067417af ML |
1707 | } |
1708 | ||
e33ab9aa ML |
1709 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1710 | ||
c6754b45 ML |
1711 | if (data->dcb.fInX) { |
1712 | if (data->dcb.fOutX) | |
1713 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1714 | else | |
1715 | config->xon_xoff = SP_XONXOFF_IN; | |
1716 | } else { | |
1717 | if (data->dcb.fOutX) | |
1718 | config->xon_xoff = SP_XONXOFF_OUT; | |
1719 | else | |
1720 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1721 | } | |
1722 | ||
e33ab9aa ML |
1723 | #else // !_WIN32 |
1724 | ||
1725 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1726 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1727 | |
1728 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1729 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1730 | |
1731 | #ifdef USE_TERMIOX | |
bd791fe1 | 1732 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1733 | |
1734 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1735 | data->termiox_supported = 0; | |
1736 | else if (ret < 0) | |
c33efc48 | 1737 | RETURN_CODEVAL(ret); |
68ec29db ML |
1738 | else |
1739 | data->termiox_supported = 1; | |
1740 | #else | |
1741 | data->termiox_supported = 0; | |
40978c2b ML |
1742 | #endif |
1743 | ||
067417af | 1744 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1745 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1746 | config->baudrate = std_baudrates[i].value; |
1747 | break; | |
1748 | } | |
1749 | } | |
1750 | ||
31b3a8f5 MH |
1751 | if (i == NUM_STD_BAUDRATES) { |
1752 | #ifdef __APPLE__ | |
1753 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1754 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1755 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1756 | #else |
067417af | 1757 | config->baudrate = -1; |
31b3a8f5 MH |
1758 | #endif |
1759 | } | |
067417af | 1760 | |
e33ab9aa | 1761 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1762 | case CS8: |
1763 | config->bits = 8; | |
1764 | break; | |
1765 | case CS7: | |
1766 | config->bits = 7; | |
1767 | break; | |
1768 | case CS6: | |
1769 | config->bits = 6; | |
1770 | break; | |
1771 | case CS5: | |
1772 | config->bits = 5; | |
1773 | break; | |
1774 | default: | |
1775 | config->bits = -1; | |
1776 | } | |
1777 | ||
e33ab9aa | 1778 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1779 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1780 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1781 | config->parity = -1; |
c3e05092 | 1782 | #ifdef CMSPAR |
e432ce60 ML |
1783 | else if (data->term.c_cflag & CMSPAR) |
1784 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1785 | #endif |
067417af | 1786 | else |
e33ab9aa | 1787 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1788 | |
e33ab9aa | 1789 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1790 | |
e33ab9aa | 1791 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1792 | config->rts = SP_RTS_FLOW_CONTROL; |
1793 | config->cts = SP_CTS_FLOW_CONTROL; | |
1794 | } else { | |
bd791fe1 | 1795 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1796 | config->rts = SP_RTS_FLOW_CONTROL; |
1797 | else | |
1798 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1799 | ||
bd791fe1 | 1800 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1801 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1802 | } |
1803 | ||
bd791fe1 | 1804 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1805 | config->dtr = SP_DTR_FLOW_CONTROL; |
1806 | else | |
1807 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1808 | ||
bd791fe1 | 1809 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1810 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1811 | |
e29b93a5 ML |
1812 | if (data->term.c_iflag & IXOFF) { |
1813 | if (data->term.c_iflag & IXON) | |
1814 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1815 | else | |
1816 | config->xon_xoff = SP_XONXOFF_IN; | |
1817 | } else { | |
1818 | if (data->term.c_iflag & IXON) | |
1819 | config->xon_xoff = SP_XONXOFF_OUT; | |
1820 | else | |
1821 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1822 | } | |
067417af ML |
1823 | #endif |
1824 | ||
c33efc48 | 1825 | RETURN_OK(); |
067417af ML |
1826 | } |
1827 | ||
7a6d2196 | 1828 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1829 | const struct sp_port_config *config) |
18fc2dd1 | 1830 | { |
e33ab9aa | 1831 | unsigned int i; |
31b3a8f5 MH |
1832 | #ifdef __APPLE__ |
1833 | BAUD_TYPE baud_nonstd; | |
1834 | ||
1835 | baud_nonstd = B0; | |
1836 | #endif | |
5cea279a | 1837 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1838 | int baud_nonstd = 0; |
1839 | #endif | |
18fc2dd1 | 1840 | |
c33efc48 ML |
1841 | TRACE("%p, %p, %p", port, data, config); |
1842 | ||
7890cef6 | 1843 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1844 | |
e33ab9aa | 1845 | #ifdef _WIN32 |
eac329d2 | 1846 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1847 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1848 | if (config->baudrate == std_baudrates[i].value) { | |
1849 | data->dcb.BaudRate = std_baudrates[i].index; | |
1850 | break; | |
1851 | } | |
1852 | } | |
18fc2dd1 | 1853 | |
e33ab9aa ML |
1854 | if (i == NUM_STD_BAUDRATES) |
1855 | data->dcb.BaudRate = config->baudrate; | |
1856 | } | |
18fc2dd1 | 1857 | |
e33ab9aa ML |
1858 | if (config->bits >= 0) |
1859 | data->dcb.ByteSize = config->bits; | |
1860 | ||
1861 | if (config->parity >= 0) { | |
1862 | switch (config->parity) { | |
e33ab9aa ML |
1863 | case SP_PARITY_NONE: |
1864 | data->dcb.Parity = NOPARITY; | |
1865 | break; | |
e432ce60 ML |
1866 | case SP_PARITY_ODD: |
1867 | data->dcb.Parity = ODDPARITY; | |
1868 | break; | |
e33ab9aa ML |
1869 | case SP_PARITY_EVEN: |
1870 | data->dcb.Parity = EVENPARITY; | |
1871 | break; | |
e432ce60 ML |
1872 | case SP_PARITY_MARK: |
1873 | data->dcb.Parity = MARKPARITY; | |
1874 | break; | |
1875 | case SP_PARITY_SPACE: | |
1876 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1877 | break; |
1878 | default: | |
c33efc48 | 1879 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1880 | } |
18fc2dd1 ML |
1881 | } |
1882 | ||
e33ab9aa ML |
1883 | if (config->stopbits >= 0) { |
1884 | switch (config->stopbits) { | |
1885 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1886 | case 1: | |
1887 | data->dcb.StopBits = ONESTOPBIT; | |
1888 | break; | |
1889 | case 2: | |
1890 | data->dcb.StopBits = TWOSTOPBITS; | |
1891 | break; | |
1892 | default: | |
c33efc48 | 1893 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1894 | } |
1895 | } | |
1896 | ||
1897 | if (config->rts >= 0) { | |
1898 | switch (config->rts) { | |
1899 | case SP_RTS_OFF: | |
1900 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1901 | break; | |
1902 | case SP_RTS_ON: | |
1903 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1904 | break; | |
1905 | case SP_RTS_FLOW_CONTROL: | |
1906 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1907 | break; | |
1908 | default: | |
c33efc48 | 1909 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1910 | } |
1911 | } | |
1912 | ||
1913 | if (config->cts >= 0) { | |
1914 | switch (config->cts) { | |
1915 | case SP_CTS_IGNORE: | |
1916 | data->dcb.fOutxCtsFlow = FALSE; | |
1917 | break; | |
1918 | case SP_CTS_FLOW_CONTROL: | |
1919 | data->dcb.fOutxCtsFlow = TRUE; | |
1920 | break; | |
1921 | default: | |
c33efc48 | 1922 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1923 | } |
1924 | } | |
1925 | ||
1926 | if (config->dtr >= 0) { | |
1927 | switch (config->dtr) { | |
1928 | case SP_DTR_OFF: | |
1929 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1930 | break; | |
1931 | case SP_DTR_ON: | |
1932 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1933 | break; | |
1934 | case SP_DTR_FLOW_CONTROL: | |
1935 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1936 | break; | |
1937 | default: | |
c33efc48 | 1938 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1939 | } |
1940 | } | |
1941 | ||
1942 | if (config->dsr >= 0) { | |
1943 | switch (config->dsr) { | |
1944 | case SP_DSR_IGNORE: | |
1945 | data->dcb.fOutxDsrFlow = FALSE; | |
1946 | break; | |
1947 | case SP_DSR_FLOW_CONTROL: | |
1948 | data->dcb.fOutxDsrFlow = TRUE; | |
1949 | break; | |
1950 | default: | |
c33efc48 | 1951 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1952 | } |
18fc2dd1 ML |
1953 | } |
1954 | ||
e33ab9aa ML |
1955 | if (config->xon_xoff >= 0) { |
1956 | switch (config->xon_xoff) { | |
1957 | case SP_XONXOFF_DISABLED: | |
1958 | data->dcb.fInX = FALSE; | |
1959 | data->dcb.fOutX = FALSE; | |
1960 | break; | |
1961 | case SP_XONXOFF_IN: | |
1962 | data->dcb.fInX = TRUE; | |
1963 | data->dcb.fOutX = FALSE; | |
1964 | break; | |
1965 | case SP_XONXOFF_OUT: | |
1966 | data->dcb.fInX = FALSE; | |
1967 | data->dcb.fOutX = TRUE; | |
1968 | break; | |
1969 | case SP_XONXOFF_INOUT: | |
1970 | data->dcb.fInX = TRUE; | |
1971 | data->dcb.fOutX = TRUE; | |
1972 | break; | |
1973 | default: | |
c33efc48 | 1974 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1975 | } |
1976 | } | |
1977 | ||
1978 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1979 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1980 | |
31b3a8f5 | 1981 | #else /* !_WIN32 */ |
e33ab9aa | 1982 | |
7a6d2196 ML |
1983 | int controlbits; |
1984 | ||
eac329d2 | 1985 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1986 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1987 | if (config->baudrate == std_baudrates[i].value) { | |
1988 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1989 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1990 | |
1991 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1992 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1993 | break; |
1994 | } | |
1995 | } | |
1996 | ||
31b3a8f5 MH |
1997 | /* Non-standard baud rate */ |
1998 | if (i == NUM_STD_BAUDRATES) { | |
1999 | #ifdef __APPLE__ | |
24abdb68 | 2000 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2001 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2002 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2003 | baud_nonstd = config->baudrate; |
5cea279a | 2004 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2005 | baud_nonstd = 1; |
31b3a8f5 | 2006 | #else |
c33efc48 | 2007 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2008 | #endif |
2009 | } | |
e33ab9aa ML |
2010 | } |
2011 | ||
2012 | if (config->bits >= 0) { | |
2013 | data->term.c_cflag &= ~CSIZE; | |
2014 | switch (config->bits) { | |
2015 | case 8: | |
2016 | data->term.c_cflag |= CS8; | |
2017 | break; | |
2018 | case 7: | |
2019 | data->term.c_cflag |= CS7; | |
2020 | break; | |
2021 | case 6: | |
2022 | data->term.c_cflag |= CS6; | |
2023 | break; | |
23922313 UH |
2024 | case 5: |
2025 | data->term.c_cflag |= CS5; | |
2026 | break; | |
e33ab9aa | 2027 | default: |
c33efc48 | 2028 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2029 | } |
2030 | } | |
2031 | ||
2032 | if (config->parity >= 0) { | |
2033 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2034 | data->term.c_cflag &= ~(PARENB | PARODD); |
2035 | #ifdef CMSPAR | |
2036 | data->term.c_cflag &= ~CMSPAR; | |
2037 | #endif | |
e33ab9aa ML |
2038 | switch (config->parity) { |
2039 | case SP_PARITY_NONE: | |
2040 | data->term.c_iflag |= IGNPAR; | |
2041 | break; | |
2042 | case SP_PARITY_EVEN: | |
2043 | data->term.c_cflag |= PARENB; | |
2044 | break; | |
2045 | case SP_PARITY_ODD: | |
2046 | data->term.c_cflag |= PARENB | PARODD; | |
2047 | break; | |
afb518f0 | 2048 | #ifdef CMSPAR |
e432ce60 | 2049 | case SP_PARITY_MARK: |
c3e05092 | 2050 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2051 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2052 | break; |
2053 | case SP_PARITY_SPACE: | |
c3e05092 | 2054 | data->term.c_cflag |= PARENB; |
c3e05092 | 2055 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2056 | break; |
afb518f0 ML |
2057 | #else |
2058 | case SP_PARITY_MARK: | |
2059 | case SP_PARITY_SPACE: | |
2060 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2061 | #endif | |
e33ab9aa | 2062 | default: |
c33efc48 | 2063 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2064 | } |
2065 | } | |
2066 | ||
2067 | if (config->stopbits >= 0) { | |
2068 | data->term.c_cflag &= ~CSTOPB; | |
2069 | switch (config->stopbits) { | |
2070 | case 1: | |
2071 | data->term.c_cflag &= ~CSTOPB; | |
2072 | break; | |
2073 | case 2: | |
2074 | data->term.c_cflag |= CSTOPB; | |
2075 | break; | |
2076 | default: | |
c33efc48 | 2077 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2078 | } |
2079 | } | |
2080 | ||
eac329d2 | 2081 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2082 | if (data->termiox_supported) { |
bd791fe1 | 2083 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2084 | switch (config->rts) { |
2085 | case SP_RTS_OFF: | |
2086 | case SP_RTS_ON: | |
2087 | controlbits = TIOCM_RTS; | |
2088 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2089 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2090 | break; |
2091 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2092 | data->rts_flow = 1; |
68ec29db ML |
2093 | break; |
2094 | default: | |
2095 | break; | |
e33ab9aa | 2096 | } |
68ec29db | 2097 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2098 | data->cts_flow = 1; |
e33ab9aa | 2099 | |
bd791fe1 | 2100 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2101 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2102 | else |
2103 | data->term.c_iflag &= ~CRTSCTS; | |
2104 | } else { | |
2105 | /* Asymmetric use of RTS/CTS not supported. */ | |
2106 | if (data->term.c_iflag & CRTSCTS) { | |
2107 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2108 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2109 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2110 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2111 | } |
2112 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2113 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2114 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2115 | } |
e33ab9aa | 2116 | } else { |
68ec29db ML |
2117 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2118 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2119 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2120 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2121 | } |
2122 | ||
2123 | if (config->rts >= 0) { | |
2124 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2125 | data->term.c_iflag |= CRTSCTS; | |
2126 | } else { | |
2127 | controlbits = TIOCM_RTS; | |
2128 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2129 | &controlbits) < 0) | |
c33efc48 | 2130 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2131 | } |
e33ab9aa ML |
2132 | } |
2133 | } | |
2134 | } | |
2135 | ||
eac329d2 | 2136 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2137 | if (data->termiox_supported) { |
bd791fe1 | 2138 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2139 | switch (config->dtr) { |
2140 | case SP_DTR_OFF: | |
2141 | case SP_DTR_ON: | |
2142 | controlbits = TIOCM_DTR; | |
2143 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2144 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2145 | break; |
2146 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2147 | data->dtr_flow = 1; |
68ec29db ML |
2148 | break; |
2149 | default: | |
2150 | break; | |
2151 | } | |
2152 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2153 | data->dsr_flow = 1; |
68ec29db ML |
2154 | } else { |
2155 | /* DTR/DSR flow control not supported. */ | |
2156 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2157 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2158 | |
68ec29db ML |
2159 | if (config->dtr >= 0) { |
2160 | controlbits = TIOCM_DTR; | |
2161 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2162 | &controlbits) < 0) | |
c33efc48 | 2163 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2164 | } |
e33ab9aa ML |
2165 | } |
2166 | } | |
2167 | ||
2168 | if (config->xon_xoff >= 0) { | |
2169 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2170 | switch (config->xon_xoff) { | |
2171 | case SP_XONXOFF_DISABLED: | |
2172 | break; | |
2173 | case SP_XONXOFF_IN: | |
2174 | data->term.c_iflag |= IXOFF; | |
2175 | break; | |
2176 | case SP_XONXOFF_OUT: | |
2177 | data->term.c_iflag |= IXON | IXANY; | |
2178 | break; | |
2179 | case SP_XONXOFF_INOUT: | |
2180 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2181 | break; | |
2182 | default: | |
c33efc48 | 2183 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2184 | } |
2185 | } | |
2186 | ||
3f5c06d0 | 2187 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2188 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2189 | |
2190 | #ifdef __APPLE__ | |
2191 | if (baud_nonstd != B0) { | |
2192 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2193 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2194 | /* |
2195 | * Set baud rates in data->term to correct, but incompatible | |
2196 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2197 | */ | |
31b3a8f5 | 2198 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2199 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2200 | } |
7a6d2196 | 2201 | #elif defined(__linux__) |
5cea279a | 2202 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2203 | if (baud_nonstd) |
2204 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2205 | #endif |
40978c2b | 2206 | #ifdef USE_TERMIOX |
68ec29db | 2207 | if (data->termiox_supported) |
bd791fe1 | 2208 | TRY(set_flow(port->fd, data)); |
40978c2b | 2209 | #endif |
7a6d2196 | 2210 | #endif |
31b3a8f5 MH |
2211 | |
2212 | #endif /* !_WIN32 */ | |
e33ab9aa | 2213 | |
c33efc48 | 2214 | RETURN_OK(); |
e33ab9aa ML |
2215 | } |
2216 | ||
970f279a | 2217 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2218 | { |
59131d60 | 2219 | struct sp_port_config *config; |
9b1502ef | 2220 | |
00d8c56d UH |
2221 | TRACE("%p", config_ptr); |
2222 | ||
9b1502ef ML |
2223 | if (!config_ptr) |
2224 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2225 | ||
59131d60 ML |
2226 | *config_ptr = NULL; |
2227 | ||
2228 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2229 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2230 | |
59131d60 ML |
2231 | config->baudrate = -1; |
2232 | config->bits = -1; | |
2233 | config->parity = -1; | |
2234 | config->stopbits = -1; | |
2235 | config->rts = -1; | |
2236 | config->cts = -1; | |
2237 | config->dtr = -1; | |
2238 | config->dsr = -1; | |
2239 | ||
2240 | *config_ptr = config; | |
2241 | ||
9b1502ef ML |
2242 | RETURN_OK(); |
2243 | } | |
2244 | ||
970f279a | 2245 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2246 | { |
2247 | TRACE("%p", config); | |
2248 | ||
2249 | if (!config) | |
2250 | DEBUG("Null config"); | |
2251 | else | |
2252 | free(config); | |
2253 | ||
2254 | RETURN(); | |
2255 | } | |
2256 | ||
970f279a AJ |
2257 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2258 | struct sp_port_config *config) | |
70cd37de ML |
2259 | { |
2260 | struct port_data data; | |
2261 | ||
2262 | TRACE("%p, %p", port, config); | |
2263 | ||
2264 | CHECK_OPEN_PORT(); | |
2265 | ||
2266 | if (!config) | |
9b1502ef | 2267 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2268 | |
2269 | TRY(get_config(port, &data, config)); | |
2270 | ||
2271 | RETURN_OK(); | |
2272 | } | |
2273 | ||
970f279a AJ |
2274 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2275 | const struct sp_port_config *config) | |
e33ab9aa | 2276 | { |
8f189c4c | 2277 | struct port_data data; |
e33ab9aa ML |
2278 | struct sp_port_config prev_config; |
2279 | ||
c33efc48 ML |
2280 | TRACE("%p, %p", port, config); |
2281 | ||
dec10e31 | 2282 | CHECK_OPEN_PORT(); |
823690ae ML |
2283 | |
2284 | if (!config) | |
c33efc48 | 2285 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2286 | |
e33ab9aa ML |
2287 | TRY(get_config(port, &data, &prev_config)); |
2288 | TRY(set_config(port, &data, config)); | |
74510d4b | 2289 | |
c33efc48 | 2290 | RETURN_OK(); |
74510d4b ML |
2291 | } |
2292 | ||
9b1502ef | 2293 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2294 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2295 | struct port_data data; \ |
e33ab9aa | 2296 | struct sp_port_config config; \ |
c33efc48 | 2297 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2298 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2299 | TRY(get_config(port, &data, &config)); \ |
2300 | config.x = x; \ | |
2301 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2302 | RETURN_OK(); \ |
9b1502ef | 2303 | } \ |
970f279a AJ |
2304 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2305 | type *x) { \ | |
00d8c56d | 2306 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2307 | if (!x) \ |
2308 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2309 | if (!config) \ |
2310 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2311 | *x = config->x; \ | |
2312 | RETURN_OK(); \ | |
2313 | } \ | |
970f279a AJ |
2314 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2315 | type x) { \ | |
9b1502ef ML |
2316 | TRACE("%p, %d", config, x); \ |
2317 | if (!config) \ | |
2318 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2319 | config->x = x; \ | |
2320 | RETURN_OK(); \ | |
9069c2fb ML |
2321 | } |
2322 | ||
9b1502ef ML |
2323 | CREATE_ACCESSORS(baudrate, int) |
2324 | CREATE_ACCESSORS(bits, int) | |
2325 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2326 | CREATE_ACCESSORS(stopbits, int) | |
2327 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2328 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2329 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2330 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2331 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2332 | ||
970f279a AJ |
2333 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2334 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2335 | { |
9b1502ef ML |
2336 | if (!config) |
2337 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2338 | |
2339 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2340 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2341 | |
e33ab9aa | 2342 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2343 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2344 | else |
9b1502ef | 2345 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2346 | |
2347 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2348 | config->rts = SP_RTS_FLOW_CONTROL; |
2349 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2350 | } else { |
9b1502ef ML |
2351 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2352 | config->rts = SP_RTS_ON; | |
2353 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2354 | } |
2355 | ||
2356 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2357 | config->dtr = SP_DTR_FLOW_CONTROL; |
2358 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2359 | } else { |
9b1502ef ML |
2360 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2361 | config->dtr = SP_DTR_ON; | |
2362 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2363 | } |
2364 | ||
9b1502ef ML |
2365 | RETURN_OK(); |
2366 | } | |
2367 | ||
970f279a AJ |
2368 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2369 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2370 | { |
2371 | struct port_data data; | |
2372 | struct sp_port_config config; | |
2373 | ||
2374 | TRACE("%p, %d", port, flowcontrol); | |
2375 | ||
2376 | CHECK_OPEN_PORT(); | |
2377 | ||
2378 | TRY(get_config(port, &data, &config)); | |
2379 | ||
2380 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2381 | ||
e33ab9aa ML |
2382 | TRY(set_config(port, &data, &config)); |
2383 | ||
c33efc48 | 2384 | RETURN_OK(); |
e33ab9aa ML |
2385 | } |
2386 | ||
970f279a AJ |
2387 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2388 | enum sp_signal *signals) | |
8cf7c697 | 2389 | { |
c33efc48 ML |
2390 | TRACE("%p, %p", port, signals); |
2391 | ||
dec10e31 | 2392 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2393 | |
2394 | if (!signals) | |
c33efc48 | 2395 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2396 | |
7890cef6 | 2397 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2398 | |
8cf7c697 ML |
2399 | *signals = 0; |
2400 | #ifdef _WIN32 | |
2401 | DWORD bits; | |
2402 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2403 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2404 | if (bits & MS_CTS_ON) |
2405 | *signals |= SP_SIG_CTS; | |
2406 | if (bits & MS_DSR_ON) | |
2407 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2408 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2409 | *signals |= SP_SIG_DCD; |
2410 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2411 | *signals |= SP_SIG_RI; |
2412 | #else | |
2413 | int bits; | |
2414 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2415 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2416 | if (bits & TIOCM_CTS) |
2417 | *signals |= SP_SIG_CTS; | |
2418 | if (bits & TIOCM_DSR) | |
2419 | *signals |= SP_SIG_DSR; | |
2420 | if (bits & TIOCM_CAR) | |
2421 | *signals |= SP_SIG_DCD; | |
2422 | if (bits & TIOCM_RNG) | |
2423 | *signals |= SP_SIG_RI; | |
2424 | #endif | |
c33efc48 | 2425 | RETURN_OK(); |
8cf7c697 ML |
2426 | } |
2427 | ||
970f279a | 2428 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2429 | { |
c33efc48 ML |
2430 | TRACE("%p", port); |
2431 | ||
dec10e31 | 2432 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2433 | #ifdef _WIN32 |
2434 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2435 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2436 | #else |
2437 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2438 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2439 | #endif |
2440 | ||
c33efc48 | 2441 | RETURN_OK(); |
90cc3ee6 ML |
2442 | } |
2443 | ||
970f279a | 2444 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2445 | { |
c33efc48 ML |
2446 | TRACE("%p", port); |
2447 | ||
dec10e31 | 2448 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2449 | #ifdef _WIN32 |
2450 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2451 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2452 | #else |
2453 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2454 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2455 | #endif |
2456 | ||
c33efc48 | 2457 | RETURN_OK(); |
90cc3ee6 ML |
2458 | } |
2459 | ||
970f279a | 2460 | SP_API int sp_last_error_code(void) |
74510d4b | 2461 | { |
7890cef6 | 2462 | TRACE_VOID(); |
74510d4b | 2463 | #ifdef _WIN32 |
9caa2e86 | 2464 | RETURN_INT(GetLastError()); |
74510d4b | 2465 | #else |
9caa2e86 | 2466 | RETURN_INT(errno); |
74510d4b ML |
2467 | #endif |
2468 | } | |
2469 | ||
970f279a | 2470 | SP_API char *sp_last_error_message(void) |
74510d4b | 2471 | { |
7890cef6 | 2472 | TRACE_VOID(); |
c33efc48 | 2473 | |
74510d4b | 2474 | #ifdef _WIN32 |
9a0c4bbd | 2475 | TCHAR *message; |
74510d4b ML |
2476 | DWORD error = GetLastError(); |
2477 | ||
9a0c4bbd | 2478 | DWORD length = FormatMessage( |
74510d4b ML |
2479 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2480 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2481 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2482 | NULL, | |
2483 | error, | |
2484 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2485 | (LPTSTR) &message, | |
2486 | 0, NULL ); | |
2487 | ||
9a0c4bbd ML |
2488 | if (length >= 2 && message[length - 2] == '\r') |
2489 | message[length - 2] = '\0'; | |
2490 | ||
9caa2e86 | 2491 | RETURN_STRING(message); |
74510d4b | 2492 | #else |
9caa2e86 | 2493 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2494 | #endif |
2495 | } | |
2496 | ||
970f279a | 2497 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2498 | { |
c33efc48 ML |
2499 | TRACE("%s", message); |
2500 | ||
74510d4b ML |
2501 | #ifdef _WIN32 |
2502 | LocalFree(message); | |
64eec30d ML |
2503 | #else |
2504 | (void)message; | |
74510d4b | 2505 | #endif |
c33efc48 ML |
2506 | |
2507 | RETURN(); | |
74510d4b | 2508 | } |
863b35e6 | 2509 | |
970f279a | 2510 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2511 | { |
c33efc48 ML |
2512 | TRACE("%p", handler); |
2513 | ||
863b35e6 | 2514 | sp_debug_handler = handler; |
c33efc48 ML |
2515 | |
2516 | RETURN(); | |
863b35e6 ML |
2517 | } |
2518 | ||
970f279a | 2519 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2520 | { |
2521 | va_list args; | |
2522 | va_start(args, format); | |
2523 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2524 | fputs("sp: ", stderr); |
863b35e6 ML |
2525 | vfprintf(stderr, format, args); |
2526 | } | |
2527 | va_end(args); | |
2528 | } | |
524b0e14 | 2529 | |
970f279a | 2530 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2531 | { |
2532 | return SP_PACKAGE_VERSION_MAJOR; | |
2533 | } | |
2534 | ||
970f279a | 2535 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2536 | { |
2537 | return SP_PACKAGE_VERSION_MINOR; | |
2538 | } | |
2539 | ||
970f279a | 2540 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2541 | { |
2542 | return SP_PACKAGE_VERSION_MICRO; | |
2543 | } | |
2544 | ||
970f279a | 2545 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2546 | { |
2547 | return SP_PACKAGE_VERSION_STRING; | |
2548 | } | |
2549 | ||
970f279a | 2550 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2551 | { |
2552 | return SP_LIB_VERSION_CURRENT; | |
2553 | } | |
2554 | ||
970f279a | 2555 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2556 | { |
2557 | return SP_LIB_VERSION_REVISION; | |
2558 | } | |
2559 | ||
970f279a | 2560 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2561 | { |
2562 | return SP_LIB_VERSION_AGE; | |
2563 | } | |
2564 | ||
970f279a | 2565 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2566 | { |
2567 | return SP_LIB_VERSION_STRING; | |
2568 | } | |
2569 | ||
2570 | /** @} */ |