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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 | ||
e33dcf90 | 24 | #include "libserialport_internal.h" |
da2748bf | 25 | |
6c6aebe7 | 26 | static const struct std_baudrate std_baudrates[] = { |
da2748bf ML |
27 | #ifdef _WIN32 |
28 | /* | |
29 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
30 | * have documented CBR_* macros. | |
31 | */ | |
32 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
33 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 34 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 35 | #else |
eac329d2 UH |
36 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
37 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
38 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
39 | BAUD(230400), | |
da2748bf | 40 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 41 | BAUD(460800), |
da2748bf ML |
42 | #endif |
43 | #endif | |
44 | }; | |
45 | ||
6c6aebe7 UH |
46 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) |
47 | ||
863b35e6 ML |
48 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
49 | ||
eb6ed20f ML |
50 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
51 | struct sp_port_config *config); | |
e33dcf90 | 52 | |
eb6ed20f ML |
53 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
54 | const struct sp_port_config *config); | |
80186526 | 55 | |
970f279a | 56 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
57 | { |
58 | struct sp_port *port; | |
5a8810e2 | 59 | #ifndef NO_PORT_METADATA |
a93fb468 | 60 | enum sp_return ret; |
5a8810e2 | 61 | #endif |
4651adb4 | 62 | size_t len; |
d54e9004 | 63 | |
c33efc48 ML |
64 | TRACE("%s, %p", portname, port_ptr); |
65 | ||
32b5ac05 | 66 | if (!port_ptr) |
c33efc48 | 67 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 68 | |
77f262c4 ML |
69 | *port_ptr = NULL; |
70 | ||
d4babed2 | 71 | if (!portname) |
c33efc48 | 72 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 73 | |
7890cef6 | 74 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 75 | |
95bad38c ST |
76 | #if !defined(_WIN32) && defined(HAVE_REALPATH) |
77 | /* | |
78 | * get_port_details() below tries to be too smart and figure out | |
79 | * some transport properties from the port name which breaks with | |
80 | * symlinks. Therefore we canonicalize the portname first. | |
81 | */ | |
82 | char pathbuf[PATH_MAX + 1]; | |
83 | char *res = realpath(portname, pathbuf); | |
84 | if (!res) | |
85 | RETURN_ERROR(SP_ERR_ARG, "Could not retrieve realpath behind port name"); | |
86 | ||
87 | portname = pathbuf; | |
88 | #endif | |
89 | ||
d54e9004 | 90 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 91 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 92 | |
5919c913 ML |
93 | len = strlen(portname) + 1; |
94 | ||
eac329d2 | 95 | if (!(port->name = malloc(len))) { |
d54e9004 | 96 | free(port); |
c33efc48 | 97 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
98 | } |
99 | ||
100 | memcpy(port->name, portname, len); | |
101 | ||
8f471c66 | 102 | #ifdef _WIN32 |
e31f2c6b | 103 | port->usb_path = NULL; |
8f471c66 | 104 | port->hdl = INVALID_HANDLE_VALUE; |
39df7833 ML |
105 | port->write_buf = NULL; |
106 | port->write_buf_size = 0; | |
8f471c66 ML |
107 | #else |
108 | port->fd = -1; | |
109 | #endif | |
110 | ||
e33dcf90 ML |
111 | port->description = NULL; |
112 | port->transport = SP_TRANSPORT_NATIVE; | |
113 | port->usb_bus = -1; | |
114 | port->usb_address = -1; | |
115 | port->usb_vid = -1; | |
116 | port->usb_pid = -1; | |
117 | port->usb_manufacturer = NULL; | |
118 | port->usb_product = NULL; | |
119 | port->usb_serial = NULL; | |
120 | port->bluetooth_address = NULL; | |
121 | ||
e4ce975a | 122 | #ifndef NO_PORT_METADATA |
e33dcf90 | 123 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
124 | sp_free_port(port); |
125 | return ret; | |
126 | } | |
e4ce975a | 127 | #endif |
a93fb468 | 128 | |
77f262c4 ML |
129 | *port_ptr = port; |
130 | ||
c33efc48 | 131 | RETURN_OK(); |
d54e9004 ML |
132 | } |
133 | ||
970f279a | 134 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
135 | { |
136 | TRACE("%p", port); | |
137 | ||
138 | if (!port) | |
139 | return NULL; | |
140 | ||
9caa2e86 | 141 | RETURN_STRING(port->name); |
1c5aae9d ML |
142 | } |
143 | ||
f1480939 | 144 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
145 | { |
146 | TRACE("%p", port); | |
147 | ||
148 | if (!port || !port->description) | |
149 | return NULL; | |
150 | ||
9caa2e86 | 151 | RETURN_STRING(port->description); |
a93fb468 AJ |
152 | } |
153 | ||
ad036cc8 | 154 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
155 | { |
156 | TRACE("%p", port); | |
157 | ||
086a4181 | 158 | RETURN_INT(port ? port->transport : SP_TRANSPORT_NATIVE); |
a93fb468 AJ |
159 | } |
160 | ||
970f279a AJ |
161 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
162 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
163 | { |
164 | TRACE("%p", port); | |
165 | ||
166 | if (!port) | |
167 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
168 | if (port->transport != SP_TRANSPORT_USB) | |
169 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
170 | if (port->usb_bus < 0 || port->usb_address < 0) |
171 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 172 | |
dc422c04 UH |
173 | if (usb_bus) |
174 | *usb_bus = port->usb_bus; | |
175 | if (usb_address) | |
176 | *usb_address = port->usb_address; | |
a93fb468 AJ |
177 | |
178 | RETURN_OK(); | |
179 | } | |
180 | ||
970f279a AJ |
181 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
182 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
183 | { |
184 | TRACE("%p", port); | |
185 | ||
186 | if (!port) | |
187 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
188 | if (port->transport != SP_TRANSPORT_USB) | |
189 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
190 | if (port->usb_vid < 0 || port->usb_pid < 0) |
191 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 192 | |
dc422c04 UH |
193 | if (usb_vid) |
194 | *usb_vid = port->usb_vid; | |
195 | if (usb_pid) | |
196 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
197 | |
198 | RETURN_OK(); | |
199 | } | |
200 | ||
970f279a | 201 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
202 | { |
203 | TRACE("%p", port); | |
204 | ||
205 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
206 | return NULL; | |
207 | ||
9caa2e86 | 208 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
209 | } |
210 | ||
970f279a | 211 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
212 | { |
213 | TRACE("%p", port); | |
214 | ||
215 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
216 | return NULL; | |
217 | ||
9caa2e86 | 218 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
219 | } |
220 | ||
970f279a | 221 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
222 | { |
223 | TRACE("%p", port); | |
224 | ||
225 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
226 | return NULL; | |
227 | ||
9caa2e86 | 228 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
229 | } |
230 | ||
970f279a | 231 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
232 | { |
233 | TRACE("%p", port); | |
234 | ||
235 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
236 | || !port->bluetooth_address) | |
237 | return NULL; | |
238 | ||
9caa2e86 | 239 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
240 | } |
241 | ||
970f279a AJ |
242 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
243 | void *result_ptr) | |
3c126654 | 244 | { |
00d8c56d | 245 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
246 | |
247 | if (!port) | |
248 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
249 | if (!result_ptr) |
250 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
251 | |
252 | #ifdef _WIN32 | |
253 | HANDLE *handle_ptr = result_ptr; | |
254 | *handle_ptr = port->hdl; | |
255 | #else | |
256 | int *fd_ptr = result_ptr; | |
257 | *fd_ptr = port->fd; | |
258 | #endif | |
259 | ||
260 | RETURN_OK(); | |
261 | } | |
262 | ||
970f279a AJ |
263 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
264 | struct sp_port **copy_ptr) | |
32b5ac05 | 265 | { |
c33efc48 ML |
266 | TRACE("%p, %p", port, copy_ptr); |
267 | ||
32b5ac05 | 268 | if (!copy_ptr) |
c33efc48 | 269 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
270 | |
271 | *copy_ptr = NULL; | |
272 | ||
c33efc48 ML |
273 | if (!port) |
274 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
275 | ||
276 | if (!port->name) | |
277 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 278 | |
ea667be7 ML |
279 | DEBUG("Copying port structure"); |
280 | ||
9caa2e86 | 281 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
282 | } |
283 | ||
970f279a | 284 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 285 | { |
c33efc48 ML |
286 | TRACE("%p", port); |
287 | ||
00d8c56d | 288 | if (!port) { |
c33efc48 ML |
289 | DEBUG("Null port"); |
290 | RETURN(); | |
291 | } | |
e3b2f7a4 | 292 | |
ea667be7 ML |
293 | DEBUG("Freeing port structure"); |
294 | ||
e3b2f7a4 ML |
295 | if (port->name) |
296 | free(port->name); | |
a93fb468 AJ |
297 | if (port->description) |
298 | free(port->description); | |
299 | if (port->usb_manufacturer) | |
300 | free(port->usb_manufacturer); | |
301 | if (port->usb_product) | |
302 | free(port->usb_product); | |
303 | if (port->usb_serial) | |
304 | free(port->usb_serial); | |
305 | if (port->bluetooth_address) | |
306 | free(port->bluetooth_address); | |
307 | #ifdef _WIN32 | |
308 | if (port->usb_path) | |
309 | free(port->usb_path); | |
39df7833 ML |
310 | if (port->write_buf) |
311 | free(port->write_buf); | |
a93fb468 | 312 | #endif |
e3b2f7a4 ML |
313 | |
314 | free(port); | |
c33efc48 ML |
315 | |
316 | RETURN(); | |
e3b2f7a4 ML |
317 | } |
318 | ||
970f279a AJ |
319 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
320 | const char *portname) | |
3b63f34d ML |
321 | { |
322 | void *tmp; | |
4651adb4 | 323 | size_t count; |
f92f1f0c | 324 | |
81243567 UH |
325 | for (count = 0; list[count]; count++) |
326 | ; | |
d54e9004 | 327 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
328 | goto fail; |
329 | list = tmp; | |
77f262c4 | 330 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 331 | goto fail; |
db2794ce | 332 | list[count + 1] = NULL; |
3b63f34d | 333 | return list; |
f92f1f0c | 334 | |
3b63f34d ML |
335 | fail: |
336 | sp_free_port_list(list); | |
337 | return NULL; | |
338 | } | |
339 | ||
970f279a | 340 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 341 | { |
23e7fa37 | 342 | #ifndef NO_ENUMERATION |
d54e9004 | 343 | struct sp_port **list; |
48a4076f | 344 | int ret; |
23e7fa37 | 345 | #endif |
24c1a4bb | 346 | |
c33efc48 ML |
347 | TRACE("%p", list_ptr); |
348 | ||
dec10e31 ML |
349 | if (!list_ptr) |
350 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
351 | ||
63926415 UH |
352 | *list_ptr = NULL; |
353 | ||
8d12e620 ML |
354 | #ifdef NO_ENUMERATION |
355 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
356 | #else | |
ea667be7 ML |
357 | DEBUG("Enumerating ports"); |
358 | ||
8d12e620 | 359 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 360 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
361 | |
362 | list[0] = NULL; | |
3b63f34d | 363 | |
48a4076f | 364 | ret = list_ports(&list); |
77f262c4 | 365 | |
8d12e620 | 366 | if (ret == SP_OK) { |
77f262c4 | 367 | *list_ptr = list; |
8d12e620 ML |
368 | } else { |
369 | sp_free_port_list(list); | |
77f262c4 ML |
370 | *list_ptr = NULL; |
371 | } | |
8d12e620 ML |
372 | |
373 | RETURN_CODEVAL(ret); | |
374 | #endif | |
3b63f34d ML |
375 | } |
376 | ||
970f279a | 377 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
378 | { |
379 | unsigned int i; | |
f92f1f0c | 380 | |
c33efc48 ML |
381 | TRACE("%p", list); |
382 | ||
dec10e31 ML |
383 | if (!list) { |
384 | DEBUG("Null list"); | |
385 | RETURN(); | |
386 | } | |
387 | ||
ea667be7 ML |
388 | DEBUG("Freeing port list"); |
389 | ||
3b63f34d | 390 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 391 | sp_free_port(list[i]); |
3b63f34d | 392 | free(list); |
c33efc48 ML |
393 | |
394 | RETURN(); | |
3b63f34d ML |
395 | } |
396 | ||
c33efc48 | 397 | #define CHECK_PORT() do { \ |
dc422c04 | 398 | if (!port) \ |
c33efc48 | 399 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 400 | if (!port->name) \ |
dec10e31 ML |
401 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
402 | } while (0) | |
403 | #ifdef _WIN32 | |
404 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 405 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 406 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 407 | } while (0) |
74510d4b | 408 | #else |
dec10e31 | 409 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 410 | if (port->fd < 0) \ |
8062087a | 411 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 412 | } while (0) |
74510d4b | 413 | #endif |
dec10e31 ML |
414 | #define CHECK_OPEN_PORT() do { \ |
415 | CHECK_PORT(); \ | |
416 | CHECK_PORT_HANDLE(); \ | |
417 | } while (0) | |
74510d4b | 418 | |
47fcf8ec ML |
419 | #ifdef WIN32 |
420 | /** To be called after port receive buffer is emptied. */ | |
421 | static enum sp_return restart_wait(struct sp_port *port) | |
422 | { | |
423 | DWORD wait_result; | |
424 | ||
425 | if (port->wait_running) { | |
426 | /* Check status of running wait operation. */ | |
427 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
428 | &wait_result, FALSE)) { | |
429 | DEBUG("Previous wait completed"); | |
430 | port->wait_running = FALSE; | |
431 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
432 | DEBUG("Previous wait still running"); | |
433 | RETURN_OK(); | |
434 | } else { | |
435 | RETURN_FAIL("GetOverlappedResult() failed"); | |
436 | } | |
437 | } | |
438 | ||
439 | if (!port->wait_running) { | |
440 | /* Start new wait operation. */ | |
441 | if (WaitCommEvent(port->hdl, &port->events, | |
442 | &port->wait_ovl)) { | |
443 | DEBUG("New wait returned, events already pending"); | |
444 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
445 | DEBUG("New wait running in background"); | |
446 | port->wait_running = TRUE; | |
447 | } else { | |
448 | RETURN_FAIL("WaitCommEvent() failed"); | |
449 | } | |
450 | } | |
451 | ||
452 | RETURN_OK(); | |
453 | } | |
454 | #endif | |
455 | ||
970f279a | 456 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 457 | { |
bccc7c9f ML |
458 | struct port_data data; |
459 | struct sp_port_config config; | |
460 | enum sp_return ret; | |
461 | ||
00d8c56d | 462 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 463 | |
dec10e31 ML |
464 | CHECK_PORT(); |
465 | ||
276ef1b9 | 466 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 467 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 468 | |
7890cef6 | 469 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 470 | |
74510d4b | 471 | #ifdef _WIN32 |
537942c9 | 472 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 473 | char *escaped_port_name; |
537942c9 | 474 | COMSTAT status; |
99945a1f ML |
475 | |
476 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 477 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 478 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
479 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
480 | ||
74510d4b | 481 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 482 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
483 | if (flags & SP_MODE_READ) |
484 | desired_access |= GENERIC_READ; | |
485 | if (flags & SP_MODE_WRITE) | |
74510d4b | 486 | desired_access |= GENERIC_WRITE; |
74510d4b | 487 | |
e47c7dcb | 488 | port->hdl = CreateFileA(escaped_port_name, desired_access, 0, 0, |
74510d4b | 489 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
490 | |
491 | free(escaped_port_name); | |
492 | ||
74510d4b | 493 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 494 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
495 | |
496 | /* All timeouts initially disabled. */ | |
497 | port->timeouts.ReadIntervalTimeout = 0; | |
498 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
499 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
500 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
501 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 502 | |
e3dcf906 | 503 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
504 | sp_close(port); |
505 | RETURN_FAIL("SetCommTimeouts() failed"); | |
506 | } | |
e3dcf906 ML |
507 | |
508 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
509 | #define INIT_OVERLAPPED(ovl) do { \ |
510 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
511 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
512 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
513 | == INVALID_HANDLE_VALUE) { \ | |
514 | sp_close(port); \ | |
515 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
516 | } \ | |
517 | } while (0) | |
518 | ||
519 | INIT_OVERLAPPED(read_ovl); | |
520 | INIT_OVERLAPPED(write_ovl); | |
521 | INIT_OVERLAPPED(wait_ovl); | |
522 | ||
523 | /* Set event mask for RX and error events. */ | |
524 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 525 | sp_close(port); |
6f1186aa | 526 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 527 | } |
6f1186aa | 528 | |
e3dcf906 | 529 | port->writing = FALSE; |
47fcf8ec | 530 | port->wait_running = FALSE; |
e3dcf906 | 531 | |
47fcf8ec ML |
532 | ret = restart_wait(port); |
533 | ||
534 | if (ret < 0) { | |
535 | sp_close(port); | |
536 | RETURN_CODEVAL(ret); | |
537 | } | |
74510d4b | 538 | #else |
fa106ef1 | 539 | int flags_local = O_NONBLOCK | O_NOCTTY | O_CLOEXEC; |
f92f1f0c | 540 | |
74510d4b | 541 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 542 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 543 | flags_local |= O_RDWR; |
a036341b | 544 | else if (flags & SP_MODE_READ) |
74510d4b | 545 | flags_local |= O_RDONLY; |
a036341b ML |
546 | else if (flags & SP_MODE_WRITE) |
547 | flags_local |= O_WRONLY; | |
74510d4b ML |
548 | |
549 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 550 | RETURN_FAIL("open() failed"); |
ffbfc5c7 LV |
551 | |
552 | /* | |
553 | * On POSIX in the default case the file descriptor of a serial port | |
554 | * is not opened exclusively. Therefore the settings of a port are | |
555 | * overwritten if the serial port is opened a second time. Windows | |
556 | * opens all serial ports exclusively. | |
557 | * So the idea is to open the serial ports alike in the exclusive mode. | |
558 | * | |
559 | * ioctl(*, TIOCEXCL) defines the file descriptor as exclusive. So all | |
560 | * further open calls on the serial port will fail. | |
561 | * | |
562 | * There is a race condition if two processes open the same serial | |
563 | * port. None of the processes will notice the exclusive ownership of | |
564 | * the other process because ioctl() doesn't return an error code if | |
565 | * the file descriptor is already marked as exclusive. | |
566 | * This can be solved with flock(). It returns an error if the file | |
567 | * descriptor is already locked by another process. | |
568 | */ | |
569 | #ifdef HAVE_FLOCK | |
570 | if (flock(port->fd, LOCK_EX | LOCK_NB) < 0) | |
571 | RETURN_FAIL("flock() failed"); | |
572 | #endif | |
573 | ||
574 | #ifdef TIOCEXCL | |
575 | /* | |
576 | * Before Linux 3.8 ioctl(*, TIOCEXCL) was not implemented and could | |
577 | * lead to EINVAL or ENOTTY. | |
578 | * These errors aren't fatal and can be ignored. | |
579 | */ | |
580 | if (ioctl(port->fd, TIOCEXCL) < 0 && errno != EINVAL && errno != ENOTTY) | |
581 | RETURN_FAIL("ioctl() failed"); | |
582 | #endif | |
583 | ||
bccc7c9f | 584 | #endif |
9cb98459 | 585 | |
e33ab9aa ML |
586 | ret = get_config(port, &data, &config); |
587 | ||
eac329d2 | 588 | if (ret < 0) { |
e33ab9aa | 589 | sp_close(port); |
c33efc48 | 590 | RETURN_CODEVAL(ret); |
e33ab9aa | 591 | } |
9cb98459 | 592 | |
1abec205 JJ |
593 | /* |
594 | * Assume a default baudrate if the OS does not provide one. | |
595 | * Cannot assign -1 here since Windows holds the baudrate in | |
596 | * the DCB and does not configure the rate individually. | |
597 | */ | |
598 | if (config.baudrate == 0) { | |
599 | config.baudrate = 9600; | |
600 | } | |
601 | ||
bccc7c9f ML |
602 | /* Set sane port settings. */ |
603 | #ifdef _WIN32 | |
604 | data.dcb.fBinary = TRUE; | |
605 | data.dcb.fDsrSensitivity = FALSE; | |
606 | data.dcb.fErrorChar = FALSE; | |
607 | data.dcb.fNull = FALSE; | |
34442106 | 608 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 609 | #else |
b251be4b | 610 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
611 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
612 | #ifdef IUCLC | |
613 | data.term.c_iflag &= ~IUCLC; | |
614 | #endif | |
615 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
616 | #ifdef OLCUC | |
617 | data.term.c_oflag &= ~OLCUC; | |
618 | #endif | |
619 | #ifdef NLDLY | |
620 | data.term.c_oflag &= ~NLDLY; | |
621 | #endif | |
622 | #ifdef CRDLY | |
623 | data.term.c_oflag &= ~CRDLY; | |
624 | #endif | |
625 | #ifdef TABDLY | |
626 | data.term.c_oflag &= ~TABDLY; | |
627 | #endif | |
628 | #ifdef BSDLY | |
629 | data.term.c_oflag &= ~BSDLY; | |
630 | #endif | |
631 | #ifdef VTDLY | |
632 | data.term.c_oflag &= ~VTDLY; | |
633 | #endif | |
634 | #ifdef FFDLY | |
635 | data.term.c_oflag &= ~FFDLY; | |
636 | #endif | |
b251be4b | 637 | #ifdef OFILL |
9cb98459 ML |
638 | data.term.c_oflag &= ~OFILL; |
639 | #endif | |
c3e05092 | 640 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 641 | data.term.c_cc[VMIN] = 0; |
b251be4b | 642 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 643 | |
b251be4b | 644 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
1b011060 BG |
645 | data.term.c_cflag |= (CLOCAL | CREAD); |
646 | data.term.c_cflag &= ~(HUPCL); | |
bccc7c9f | 647 | #endif |
9cb98459 | 648 | |
537942c9 | 649 | #ifdef _WIN32 |
1a2a1544 UH |
650 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
651 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
652 | #endif |
653 | ||
e33ab9aa ML |
654 | ret = set_config(port, &data, &config); |
655 | ||
eac329d2 | 656 | if (ret < 0) { |
e33ab9aa | 657 | sp_close(port); |
c33efc48 | 658 | RETURN_CODEVAL(ret); |
e33ab9aa | 659 | } |
74510d4b | 660 | |
c33efc48 | 661 | RETURN_OK(); |
74510d4b ML |
662 | } |
663 | ||
970f279a | 664 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 665 | { |
c33efc48 ML |
666 | TRACE("%p", port); |
667 | ||
dec10e31 | 668 | CHECK_OPEN_PORT(); |
74510d4b | 669 | |
7890cef6 | 670 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 671 | |
74510d4b ML |
672 | #ifdef _WIN32 |
673 | /* Returns non-zero upon success, 0 upon failure. */ | |
674 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 675 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 676 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
677 | |
678 | /* Close event handles for overlapped structures. */ | |
679 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
680 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
681 | CloseHandle(port->ovl.hEvent) == 0) \ | |
682 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
683 | } while (0) | |
684 | CLOSE_OVERLAPPED(read_ovl); | |
685 | CLOSE_OVERLAPPED(write_ovl); | |
686 | CLOSE_OVERLAPPED(wait_ovl); | |
687 | ||
39df7833 ML |
688 | if (port->write_buf) { |
689 | free(port->write_buf); | |
690 | port->write_buf = NULL; | |
691 | } | |
74510d4b ML |
692 | #else |
693 | /* Returns 0 upon success, -1 upon failure. */ | |
694 | if (close(port->fd) == -1) | |
c33efc48 | 695 | RETURN_FAIL("close() failed"); |
8f471c66 | 696 | port->fd = -1; |
74510d4b ML |
697 | #endif |
698 | ||
c33efc48 | 699 | RETURN_OK(); |
74510d4b ML |
700 | } |
701 | ||
970f279a | 702 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 703 | { |
00d8c56d | 704 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 705 | |
dec10e31 ML |
706 | CHECK_OPEN_PORT(); |
707 | ||
708 | if (buffers > SP_BUF_BOTH) | |
709 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 710 | |
0ba3e49b | 711 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 712 | |
7890cef6 ML |
713 | DEBUG_FMT("Flushing %s buffers on port %s", |
714 | buffer_names[buffers], port->name); | |
ea667be7 | 715 | |
74510d4b | 716 | #ifdef _WIN32 |
fd8fd11a ML |
717 | DWORD flags = 0; |
718 | if (buffers & SP_BUF_INPUT) | |
719 | flags |= PURGE_RXCLEAR; | |
720 | if (buffers & SP_BUF_OUTPUT) | |
721 | flags |= PURGE_TXCLEAR; | |
722 | ||
74510d4b | 723 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 724 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 725 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
726 | |
727 | if (buffers & SP_BUF_INPUT) | |
728 | TRY(restart_wait(port)); | |
74510d4b | 729 | #else |
fd8fd11a | 730 | int flags = 0; |
ad749855 | 731 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 732 | flags = TCIOFLUSH; |
ad749855 | 733 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 734 | flags = TCIFLUSH; |
ad749855 | 735 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
736 | flags = TCOFLUSH; |
737 | ||
74510d4b | 738 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 739 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 740 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 741 | #endif |
c33efc48 | 742 | RETURN_OK(); |
74510d4b ML |
743 | } |
744 | ||
970f279a | 745 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 746 | { |
c33efc48 ML |
747 | TRACE("%p", port); |
748 | ||
dec10e31 | 749 | CHECK_OPEN_PORT(); |
69a3739c | 750 | |
7890cef6 | 751 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 752 | |
69a3739c ML |
753 | #ifdef _WIN32 |
754 | /* Returns non-zero upon success, 0 upon failure. */ | |
755 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 756 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 757 | RETURN_OK(); |
69a3739c | 758 | #else |
2c827b21 ML |
759 | int result; |
760 | while (1) { | |
abd31fd9 ML |
761 | #if defined(__ANDROID__) && (__ANDROID_API__ < 21) |
762 | /* Android only has tcdrain from platform 21 onwards. | |
763 | * On previous API versions, use the ioctl directly. */ | |
33fd8804 ML |
764 | int arg = 1; |
765 | result = ioctl(port->fd, TCSBRK, &arg); | |
766 | #else | |
2c827b21 | 767 | result = tcdrain(port->fd); |
33fd8804 | 768 | #endif |
2c827b21 ML |
769 | if (result < 0) { |
770 | if (errno == EINTR) { | |
771 | DEBUG("tcdrain() was interrupted"); | |
772 | continue; | |
773 | } else { | |
774 | RETURN_FAIL("tcdrain() failed"); | |
775 | } | |
776 | } else { | |
777 | RETURN_OK(); | |
778 | } | |
779 | } | |
69a3739c | 780 | #endif |
69a3739c ML |
781 | } |
782 | ||
62ed9f80 ML |
783 | #ifdef _WIN32 |
784 | static enum sp_return await_write_completion(struct sp_port *port) | |
785 | { | |
786 | TRACE("%p", port); | |
787 | DWORD bytes_written; | |
788 | BOOL result; | |
789 | ||
790 | /* Wait for previous non-blocking write to complete, if any. */ | |
791 | if (port->writing) { | |
792 | DEBUG("Waiting for previous write to complete"); | |
793 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
794 | port->writing = 0; | |
795 | if (!result) | |
796 | RETURN_FAIL("Previous write failed to complete"); | |
797 | DEBUG("Previous write completed"); | |
798 | } | |
799 | ||
800 | RETURN_OK(); | |
801 | } | |
802 | #endif | |
803 | ||
970f279a | 804 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 805 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 806 | { |
1b91c6ea | 807 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
808 | |
809 | CHECK_OPEN_PORT(); | |
810 | ||
811 | if (!buf) | |
812 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
813 | ||
1b91c6ea | 814 | if (timeout_ms) |
7890cef6 | 815 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 816 | count, port->name, timeout_ms); |
e3dcf906 | 817 | else |
7890cef6 ML |
818 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
819 | count, port->name); | |
e3dcf906 ML |
820 | |
821 | if (count == 0) | |
9caa2e86 | 822 | RETURN_INT(0); |
e3dcf906 ML |
823 | |
824 | #ifdef _WIN32 | |
2149db9e ML |
825 | DWORD remaining_ms, write_size, bytes_written; |
826 | size_t remaining_bytes, total_bytes_written = 0; | |
060d1d8a ML |
827 | const uint8_t *write_ptr = (uint8_t *) buf; |
828 | bool result; | |
829 | struct timeout timeout; | |
830 | ||
831 | timeout_start(&timeout, timeout_ms); | |
e3dcf906 | 832 | |
62ed9f80 | 833 | TRY(await_write_completion(port)); |
e3dcf906 | 834 | |
060d1d8a | 835 | while (total_bytes_written < count) { |
e3dcf906 | 836 | |
060d1d8a ML |
837 | if (timeout_check(&timeout)) |
838 | break; | |
839 | ||
840 | remaining_ms = timeout_remaining_ms(&timeout); | |
841 | ||
842 | if (port->timeouts.WriteTotalTimeoutConstant != remaining_ms) { | |
843 | port->timeouts.WriteTotalTimeoutConstant = remaining_ms; | |
844 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
845 | RETURN_FAIL("SetCommTimeouts() failed"); | |
846 | } | |
847 | ||
848 | /* Reduce write size if it exceeds the WriteFile limit. */ | |
2149db9e ML |
849 | remaining_bytes = count - total_bytes_written; |
850 | if (remaining_bytes > WRITEFILE_MAX_SIZE) | |
060d1d8a | 851 | write_size = WRITEFILE_MAX_SIZE; |
2149db9e ML |
852 | else |
853 | write_size = (DWORD) remaining_bytes; | |
060d1d8a ML |
854 | |
855 | /* Start write. */ | |
856 | ||
857 | result = WriteFile(port->hdl, write_ptr, write_size, NULL, &port->write_ovl); | |
858 | ||
859 | timeout_update(&timeout); | |
860 | ||
861 | if (result) { | |
862 | DEBUG("Write completed immediately"); | |
863 | bytes_written = write_size; | |
864 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
865 | DEBUG("Waiting for write to complete"); | |
866 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) { | |
867 | if (GetLastError() == ERROR_SEM_TIMEOUT) { | |
868 | DEBUG("Write timed out"); | |
869 | break; | |
870 | } else { | |
871 | RETURN_FAIL("GetOverlappedResult() failed"); | |
872 | } | |
aee7d691 | 873 | } |
060d1d8a ML |
874 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, write_size); |
875 | } else { | |
876 | RETURN_FAIL("WriteFile() failed"); | |
aee7d691 | 877 | } |
060d1d8a ML |
878 | |
879 | write_ptr += bytes_written; | |
880 | total_bytes_written += bytes_written; | |
e3dcf906 | 881 | } |
060d1d8a | 882 | |
2149db9e | 883 | RETURN_INT((int) total_bytes_written); |
e3dcf906 ML |
884 | #else |
885 | size_t bytes_written = 0; | |
886 | unsigned char *ptr = (unsigned char *) buf; | |
32dbe2d2 | 887 | struct timeout timeout; |
e3dcf906 | 888 | fd_set fds; |
fd20b0fc | 889 | ssize_t result; |
e3dcf906 | 890 | |
32dbe2d2 | 891 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 892 | |
772c5861 ML |
893 | FD_ZERO(&fds); |
894 | FD_SET(port->fd, &fds); | |
895 | ||
e3dcf906 | 896 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 897 | while (bytes_written < count) { |
bd72614f ML |
898 | |
899 | if (timeout_check(&timeout)) | |
32dbe2d2 ML |
900 | break; |
901 | ||
902 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_timeval(&timeout)); | |
bd72614f ML |
903 | |
904 | timeout_update(&timeout); | |
905 | ||
63a17c64 ML |
906 | if (result < 0) { |
907 | if (errno == EINTR) { | |
908 | DEBUG("select() call was interrupted, repeating"); | |
909 | continue; | |
910 | } else { | |
911 | RETURN_FAIL("select() failed"); | |
912 | } | |
913 | } else if (result == 0) { | |
c3cee38c ML |
914 | /* Timeout has expired. */ |
915 | break; | |
e3dcf906 ML |
916 | } |
917 | ||
918 | /* Do write. */ | |
919 | result = write(port->fd, ptr, count - bytes_written); | |
920 | ||
921 | if (result < 0) { | |
922 | if (errno == EAGAIN) | |
923 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
924 | continue; | |
925 | else | |
926 | /* This is an actual failure. */ | |
927 | RETURN_FAIL("write() failed"); | |
928 | } | |
929 | ||
930 | bytes_written += result; | |
931 | ptr += result; | |
932 | } | |
933 | ||
c3cee38c ML |
934 | if (bytes_written < count) |
935 | DEBUG("Write timed out"); | |
936 | ||
9caa2e86 | 937 | RETURN_INT(bytes_written); |
e3dcf906 ML |
938 | #endif |
939 | } | |
940 | ||
970f279a AJ |
941 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
942 | const void *buf, size_t count) | |
74510d4b | 943 | { |
c33efc48 ML |
944 | TRACE("%p, %p, %d", port, buf, count); |
945 | ||
dec10e31 | 946 | CHECK_OPEN_PORT(); |
74510d4b ML |
947 | |
948 | if (!buf) | |
c33efc48 | 949 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 950 | |
7890cef6 | 951 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 952 | |
a3cb91f5 | 953 | if (count == 0) |
9caa2e86 | 954 | RETURN_INT(0); |
a3cb91f5 | 955 | |
74510d4b | 956 | #ifdef _WIN32 |
2149db9e | 957 | size_t buf_bytes; |
f92f1f0c | 958 | |
e3dcf906 ML |
959 | /* Check whether previous write is complete. */ |
960 | if (port->writing) { | |
961 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
962 | DEBUG("Previous write completed"); | |
963 | port->writing = 0; | |
964 | } else { | |
965 | DEBUG("Previous write not complete"); | |
966 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 967 | RETURN_INT(0); |
a3cb91f5 | 968 | } |
e3dcf906 | 969 | } |
a3cb91f5 | 970 | |
e3dcf906 | 971 | /* Set timeout. */ |
27a58c05 ML |
972 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
973 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
974 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
975 | RETURN_FAIL("SetCommTimeouts() failed"); | |
976 | } | |
e3dcf906 | 977 | |
b457865b ML |
978 | /* Reduce count if it exceeds the WriteFile limit. */ |
979 | if (count > WRITEFILE_MAX_SIZE) | |
980 | count = WRITEFILE_MAX_SIZE; | |
981 | ||
39df7833 ML |
982 | /* Copy data to our write buffer. */ |
983 | buf_bytes = min(port->write_buf_size, count); | |
984 | memcpy(port->write_buf, buf, buf_bytes); | |
985 | ||
986 | /* Start asynchronous write. */ | |
2149db9e | 987 | if (WriteFile(port->hdl, port->write_buf, (DWORD) buf_bytes, NULL, &port->write_ovl) == 0) { |
39df7833 ML |
988 | if (GetLastError() == ERROR_IO_PENDING) { |
989 | if ((port->writing = !HasOverlappedIoCompleted(&port->write_ovl))) | |
990 | DEBUG("Asynchronous write completed immediately"); | |
991 | else | |
992 | DEBUG("Asynchronous write running"); | |
e3dcf906 | 993 | } else { |
39df7833 ML |
994 | /* Actual failure of some kind. */ |
995 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 ML |
996 | } |
997 | } | |
998 | ||
9af8cff3 | 999 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1000 | |
2149db9e | 1001 | RETURN_INT((int) buf_bytes); |
74510d4b ML |
1002 | #else |
1003 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1004 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1005 | |
55ab7e0b ML |
1006 | if (written < 0) { |
1007 | if (errno == EAGAIN) | |
1008 | // Buffer is full, no bytes written. | |
1009 | RETURN_INT(0); | |
1010 | else | |
1011 | RETURN_FAIL("write() failed"); | |
1012 | } else { | |
9caa2e86 | 1013 | RETURN_INT(written); |
55ab7e0b | 1014 | } |
74510d4b ML |
1015 | #endif |
1016 | } | |
1017 | ||
94a314a8 ML |
1018 | #ifdef _WIN32 |
1019 | /* Restart wait operation if buffer was emptied. */ | |
1020 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
1021 | { | |
8ebfaf89 ML |
1022 | DWORD errors; |
1023 | COMSTAT comstat; | |
94a314a8 | 1024 | |
21ae5ce1 ML |
1025 | if (bytes_read == 0) |
1026 | RETURN_OK(); | |
1027 | ||
8ebfaf89 ML |
1028 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
1029 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 1030 | |
8ebfaf89 | 1031 | if (comstat.cbInQue == 0) |
94a314a8 ML |
1032 | TRY(restart_wait(port)); |
1033 | ||
1034 | RETURN_OK(); | |
1035 | } | |
1036 | #endif | |
1037 | ||
970f279a | 1038 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 1039 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 1040 | { |
1b91c6ea | 1041 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
1042 | |
1043 | CHECK_OPEN_PORT(); | |
1044 | ||
1045 | if (!buf) | |
1046 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1047 | ||
1b91c6ea | 1048 | if (timeout_ms) |
7890cef6 | 1049 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 1050 | count, port->name, timeout_ms); |
e3dcf906 | 1051 | else |
7890cef6 ML |
1052 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
1053 | count, port->name); | |
e3dcf906 ML |
1054 | |
1055 | if (count == 0) | |
9caa2e86 | 1056 | RETURN_INT(0); |
e3dcf906 ML |
1057 | |
1058 | #ifdef _WIN32 | |
2149db9e | 1059 | DWORD bytes_read; |
e3dcf906 ML |
1060 | |
1061 | /* Set timeout. */ | |
27a58c05 | 1062 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 1063 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1064 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
1065 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 1066 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1067 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
1068 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1069 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1070 | } | |
e3dcf906 ML |
1071 | |
1072 | /* Start read. */ | |
2149db9e | 1073 | if (ReadFile(port->hdl, buf, (DWORD) count, NULL, &port->read_ovl)) { |
e3dcf906 | 1074 | DEBUG("Read completed immediately"); |
2149db9e | 1075 | bytes_read = (DWORD) count; |
bbe566fe ML |
1076 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1077 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
1078 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1079 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
1080 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
1081 | } else { | |
1082 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
1083 | } |
1084 | ||
94a314a8 | 1085 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1086 | |
2149db9e | 1087 | RETURN_INT((int) bytes_read); |
6f1186aa | 1088 | |
e3dcf906 ML |
1089 | #else |
1090 | size_t bytes_read = 0; | |
9a7945af | 1091 | unsigned char *ptr = (unsigned char *) buf; |
32dbe2d2 | 1092 | struct timeout timeout; |
e3dcf906 | 1093 | fd_set fds; |
fd20b0fc | 1094 | ssize_t result; |
e3dcf906 | 1095 | |
32dbe2d2 | 1096 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 1097 | |
772c5861 ML |
1098 | FD_ZERO(&fds); |
1099 | FD_SET(port->fd, &fds); | |
1100 | ||
e3dcf906 | 1101 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1102 | while (bytes_read < count) { |
bd72614f ML |
1103 | |
1104 | if (timeout_check(&timeout)) | |
32dbe2d2 ML |
1105 | /* Timeout has expired. */ |
1106 | break; | |
1107 | ||
1108 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
bd72614f ML |
1109 | |
1110 | timeout_update(&timeout); | |
1111 | ||
63a17c64 ML |
1112 | if (result < 0) { |
1113 | if (errno == EINTR) { | |
1114 | DEBUG("select() call was interrupted, repeating"); | |
1115 | continue; | |
1116 | } else { | |
1117 | RETURN_FAIL("select() failed"); | |
1118 | } | |
1119 | } else if (result == 0) { | |
c3cee38c ML |
1120 | /* Timeout has expired. */ |
1121 | break; | |
e3dcf906 ML |
1122 | } |
1123 | ||
1124 | /* Do read. */ | |
1125 | result = read(port->fd, ptr, count - bytes_read); | |
1126 | ||
1127 | if (result < 0) { | |
1128 | if (errno == EAGAIN) | |
76222ee5 ML |
1129 | /* |
1130 | * This shouldn't happen because we did a | |
1131 | * select() first, but handle anyway. | |
1132 | */ | |
e3dcf906 ML |
1133 | continue; |
1134 | else | |
1135 | /* This is an actual failure. */ | |
1136 | RETURN_FAIL("read() failed"); | |
1137 | } | |
1138 | ||
1139 | bytes_read += result; | |
1140 | ptr += result; | |
1141 | } | |
1142 | ||
c3cee38c ML |
1143 | if (bytes_read < count) |
1144 | DEBUG("Read timed out"); | |
1145 | ||
9caa2e86 | 1146 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1147 | #endif |
1148 | } | |
1149 | ||
e5c2630e ML |
1150 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1151 | size_t count, unsigned int timeout_ms) | |
1152 | { | |
1153 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1154 | ||
1155 | CHECK_OPEN_PORT(); | |
1156 | ||
1157 | if (!buf) | |
1158 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1159 | ||
1160 | if (count == 0) | |
1161 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1162 | ||
1163 | if (timeout_ms) | |
1164 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1165 | count, port->name, timeout_ms); | |
1166 | else | |
1167 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1168 | count, port->name); | |
1169 | ||
1170 | #ifdef _WIN32 | |
1171 | DWORD bytes_read = 0; | |
1172 | ||
1173 | /* If timeout_ms == 0, set maximum timeout. */ | |
1174 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1175 | ||
1176 | /* Set timeout. */ | |
1177 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1178 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1179 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1180 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1181 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1182 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1183 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1184 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1185 | } | |
1186 | ||
1187 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1188 | while (bytes_read == 0) { | |
1189 | /* Start read. */ | |
2149db9e | 1190 | if (ReadFile(port->hdl, buf, (DWORD) count, &bytes_read, &port->read_ovl)) { |
e5c2630e | 1191 | DEBUG("Read completed immediately"); |
e5c2630e ML |
1192 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1193 | DEBUG("Waiting for read to complete"); | |
1194 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1195 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1196 | if (bytes_read > 0) { | |
1197 | DEBUG("Read completed"); | |
1198 | } else if (timeout_ms > 0) { | |
1199 | DEBUG("Read timed out"); | |
1200 | break; | |
1201 | } else { | |
1202 | DEBUG("Restarting read"); | |
1203 | } | |
1204 | } else { | |
1205 | RETURN_FAIL("ReadFile() failed"); | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1210 | ||
1211 | RETURN_INT(bytes_read); | |
1212 | ||
1213 | #else | |
1214 | size_t bytes_read = 0; | |
32dbe2d2 | 1215 | struct timeout timeout; |
e5c2630e | 1216 | fd_set fds; |
fd20b0fc | 1217 | ssize_t result; |
e5c2630e | 1218 | |
32dbe2d2 | 1219 | timeout_start(&timeout, timeout_ms); |
e5c2630e ML |
1220 | |
1221 | FD_ZERO(&fds); | |
1222 | FD_SET(port->fd, &fds); | |
1223 | ||
1224 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1225 | while (bytes_read == 0) { | |
bd72614f ML |
1226 | |
1227 | if (timeout_check(&timeout)) | |
32dbe2d2 ML |
1228 | /* Timeout has expired. */ |
1229 | break; | |
1230 | ||
1231 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
bd72614f ML |
1232 | |
1233 | timeout_update(&timeout); | |
1234 | ||
e5c2630e ML |
1235 | if (result < 0) { |
1236 | if (errno == EINTR) { | |
1237 | DEBUG("select() call was interrupted, repeating"); | |
1238 | continue; | |
1239 | } else { | |
1240 | RETURN_FAIL("select() failed"); | |
1241 | } | |
1242 | } else if (result == 0) { | |
1243 | /* Timeout has expired. */ | |
1244 | break; | |
1245 | } | |
1246 | ||
1247 | /* Do read. */ | |
1248 | result = read(port->fd, buf, count); | |
1249 | ||
1250 | if (result < 0) { | |
1251 | if (errno == EAGAIN) | |
1252 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1253 | continue; | |
1254 | else | |
1255 | /* This is an actual failure. */ | |
1256 | RETURN_FAIL("read() failed"); | |
1257 | } | |
1258 | ||
1259 | bytes_read = result; | |
1260 | } | |
1261 | ||
1262 | if (bytes_read == 0) | |
1263 | DEBUG("Read timed out"); | |
1264 | ||
1265 | RETURN_INT(bytes_read); | |
1266 | #endif | |
1267 | } | |
1268 | ||
970f279a AJ |
1269 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1270 | size_t count) | |
74510d4b | 1271 | { |
c33efc48 ML |
1272 | TRACE("%p, %p, %d", port, buf, count); |
1273 | ||
dec10e31 | 1274 | CHECK_OPEN_PORT(); |
74510d4b ML |
1275 | |
1276 | if (!buf) | |
c33efc48 | 1277 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1278 | |
7890cef6 | 1279 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1280 | |
74510d4b | 1281 | #ifdef _WIN32 |
e3dcf906 | 1282 | DWORD bytes_read; |
f92f1f0c | 1283 | |
e3dcf906 | 1284 | /* Set timeout. */ |
27a58c05 | 1285 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1286 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1287 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1288 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1289 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1290 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1291 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1292 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1293 | } | |
e3dcf906 ML |
1294 | |
1295 | /* Do read. */ | |
2149db9e | 1296 | if (ReadFile(port->hdl, buf, (DWORD) count, NULL, &port->read_ovl) == 0) |
ae2c5825 ML |
1297 | if (GetLastError() != ERROR_IO_PENDING) |
1298 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1299 | |
1300 | /* Get number of bytes read. */ | |
ae2c5825 | 1301 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1302 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1303 | |
94a314a8 | 1304 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1305 | |
9caa2e86 | 1306 | RETURN_INT(bytes_read); |
74510d4b ML |
1307 | #else |
1308 | ssize_t bytes_read; | |
f92f1f0c | 1309 | |
74510d4b | 1310 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1311 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1312 | if (errno == EAGAIN) |
1313 | /* No bytes available. */ | |
33d5ff47 ML |
1314 | bytes_read = 0; |
1315 | else | |
1316 | /* This is an actual failure. */ | |
1317 | RETURN_FAIL("read() failed"); | |
1318 | } | |
9caa2e86 | 1319 | RETURN_INT(bytes_read); |
74510d4b ML |
1320 | #endif |
1321 | } | |
1322 | ||
970f279a | 1323 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1324 | { |
1325 | TRACE("%p", port); | |
1326 | ||
1327 | CHECK_OPEN_PORT(); | |
1328 | ||
7890cef6 | 1329 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1330 | |
1331 | #ifdef _WIN32 | |
1332 | DWORD errors; | |
1333 | COMSTAT comstat; | |
1334 | ||
1335 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1336 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1337 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1338 | #else |
1339 | int bytes_waiting; | |
1340 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1341 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1342 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1343 | #endif |
1344 | } | |
1345 | ||
970f279a | 1346 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1347 | { |
1348 | TRACE("%p", port); | |
1349 | ||
2be41b12 ML |
1350 | #ifdef __CYGWIN__ |
1351 | /* TIOCOUTQ is not defined in Cygwin headers */ | |
1352 | RETURN_ERROR(SP_ERR_SUPP, | |
1353 | "Getting output bytes waiting is not supported on Cygwin"); | |
1354 | #else | |
3353c22f ML |
1355 | CHECK_OPEN_PORT(); |
1356 | ||
7890cef6 | 1357 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1358 | |
1359 | #ifdef _WIN32 | |
1360 | DWORD errors; | |
1361 | COMSTAT comstat; | |
1362 | ||
1363 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1364 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1365 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1366 | #else |
1367 | int bytes_waiting; | |
1368 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1369 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1370 | RETURN_INT(bytes_waiting); |
3353c22f | 1371 | #endif |
2be41b12 | 1372 | #endif |
3353c22f ML |
1373 | } |
1374 | ||
970f279a | 1375 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1376 | { |
1377 | struct sp_event_set *result; | |
1378 | ||
1379 | TRACE("%p", result_ptr); | |
1380 | ||
1381 | if (!result_ptr) | |
1382 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1383 | ||
1384 | *result_ptr = NULL; | |
1385 | ||
1386 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1387 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1388 | ||
1389 | memset(result, 0, sizeof(struct sp_event_set)); | |
1390 | ||
1391 | *result_ptr = result; | |
1392 | ||
1393 | RETURN_OK(); | |
1394 | } | |
1395 | ||
1396 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1397 | event_handle handle, enum sp_event mask) | |
1398 | { | |
1399 | void *new_handles; | |
1400 | enum sp_event *new_masks; | |
1401 | ||
1402 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1403 | ||
1404 | if (!(new_handles = realloc(event_set->handles, | |
1405 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1406 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1407 | |
ac323d80 UH |
1408 | event_set->handles = new_handles; |
1409 | ||
6f1186aa | 1410 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1411 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1412 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1413 | |
6f1186aa ML |
1414 | event_set->masks = new_masks; |
1415 | ||
1416 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1417 | event_set->masks[event_set->count] = mask; | |
1418 | ||
1419 | event_set->count++; | |
1420 | ||
1421 | RETURN_OK(); | |
1422 | } | |
1423 | ||
970f279a | 1424 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1425 | const struct sp_port *port, enum sp_event mask) |
1426 | { | |
1427 | TRACE("%p, %p, %d", event_set, port, mask); | |
1428 | ||
1429 | if (!event_set) | |
1430 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1431 | ||
1432 | if (!port) | |
1433 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1434 | ||
1435 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1436 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1437 | ||
1438 | if (!mask) | |
1439 | RETURN_OK(); | |
1440 | ||
1441 | #ifdef _WIN32 | |
1442 | enum sp_event handle_mask; | |
1443 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1444 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1445 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1446 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1447 | #else | |
1448 | TRY(add_handle(event_set, port->fd, mask)); | |
1449 | #endif | |
1450 | ||
1451 | RETURN_OK(); | |
1452 | } | |
1453 | ||
970f279a | 1454 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1455 | { |
1456 | TRACE("%p", event_set); | |
1457 | ||
1458 | if (!event_set) { | |
1459 | DEBUG("Null event set"); | |
1460 | RETURN(); | |
1461 | } | |
1462 | ||
1463 | DEBUG("Freeing event set"); | |
1464 | ||
1465 | if (event_set->handles) | |
1466 | free(event_set->handles); | |
1467 | if (event_set->masks) | |
1468 | free(event_set->masks); | |
1469 | ||
1470 | free(event_set); | |
1471 | ||
1472 | RETURN(); | |
1473 | } | |
1474 | ||
970f279a | 1475 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1476 | unsigned int timeout_ms) |
6f1186aa | 1477 | { |
1b91c6ea | 1478 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1479 | |
1480 | if (!event_set) | |
1481 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1482 | ||
1483 | #ifdef _WIN32 | |
1484 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1485 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1486 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1487 | ||
1488 | RETURN_OK(); | |
1489 | #else | |
32dbe2d2 | 1490 | struct timeout timeout; |
d81a4dfd | 1491 | int poll_timeout; |
bd72614f | 1492 | int result; |
6f1186aa ML |
1493 | struct pollfd *pollfds; |
1494 | unsigned int i; | |
1495 | ||
1496 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1497 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1498 | ||
1499 | for (i = 0; i < event_set->count; i++) { | |
81243567 | 1500 | pollfds[i].fd = ((int *)event_set->handles)[i]; |
6f1186aa ML |
1501 | pollfds[i].events = 0; |
1502 | pollfds[i].revents = 0; | |
1503 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1504 | pollfds[i].events |= POLLIN; | |
1505 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1506 | pollfds[i].events |= POLLOUT; | |
1507 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1508 | pollfds[i].events |= POLLERR; | |
1509 | } | |
1510 | ||
32dbe2d2 | 1511 | timeout_start(&timeout, timeout_ms); |
08eb25f5 | 1512 | timeout_limit(&timeout, INT_MAX); |
6f1186aa ML |
1513 | |
1514 | /* Loop until an event occurs. */ | |
dc422c04 | 1515 | while (1) { |
bd72614f ML |
1516 | |
1517 | if (timeout_check(&timeout)) { | |
32dbe2d2 ML |
1518 | DEBUG("Wait timed out"); |
1519 | break; | |
6f1186aa ML |
1520 | } |
1521 | ||
d81a4dfd ML |
1522 | poll_timeout = (int) timeout_remaining_ms(&timeout); |
1523 | if (poll_timeout == 0) | |
1524 | poll_timeout = -1; | |
1525 | ||
1526 | result = poll(pollfds, event_set->count, poll_timeout); | |
bd72614f ML |
1527 | |
1528 | timeout_update(&timeout); | |
6f1186aa ML |
1529 | |
1530 | if (result < 0) { | |
1531 | if (errno == EINTR) { | |
1532 | DEBUG("poll() call was interrupted, repeating"); | |
1533 | continue; | |
1534 | } else { | |
1535 | free(pollfds); | |
1536 | RETURN_FAIL("poll() failed"); | |
1537 | } | |
1538 | } else if (result == 0) { | |
1539 | DEBUG("poll() timed out"); | |
32dbe2d2 | 1540 | if (!timeout.overflow) |
127d8d0c | 1541 | break; |
6f1186aa ML |
1542 | } else { |
1543 | DEBUG("poll() completed"); | |
1544 | break; | |
1545 | } | |
1546 | } | |
1547 | ||
1548 | free(pollfds); | |
1549 | RETURN_OK(); | |
1550 | #endif | |
1551 | } | |
1552 | ||
5cea279a | 1553 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1554 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1555 | { | |
1556 | void *data; | |
1557 | ||
c33efc48 ML |
1558 | TRACE("%d, %p", fd, baudrate); |
1559 | ||
ea667be7 ML |
1560 | DEBUG("Getting baud rate"); |
1561 | ||
7a6d2196 | 1562 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1563 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1564 | |
8d43110a ML |
1565 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1566 | free(data); | |
dc422c04 | 1567 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1568 | } |
7a6d2196 ML |
1569 | |
1570 | *baudrate = get_termios_speed(data); | |
1571 | ||
8d43110a ML |
1572 | free(data); |
1573 | ||
c33efc48 | 1574 | RETURN_OK(); |
7a6d2196 ML |
1575 | } |
1576 | ||
1577 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1578 | { | |
1579 | void *data; | |
1580 | ||
c33efc48 ML |
1581 | TRACE("%d, %d", fd, baudrate); |
1582 | ||
ea667be7 ML |
1583 | DEBUG("Getting baud rate"); |
1584 | ||
7a6d2196 | 1585 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1586 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1587 | |
8d43110a ML |
1588 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1589 | free(data); | |
dc422c04 | 1590 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1591 | } |
7a6d2196 | 1592 | |
ea667be7 ML |
1593 | DEBUG("Setting baud rate"); |
1594 | ||
7a6d2196 ML |
1595 | set_termios_speed(data, baudrate); |
1596 | ||
8d43110a ML |
1597 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1598 | free(data); | |
dc422c04 | 1599 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1600 | } |
1601 | ||
1602 | free(data); | |
7a6d2196 | 1603 | |
c33efc48 | 1604 | RETURN_OK(); |
7a6d2196 | 1605 | } |
5cea279a | 1606 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1607 | |
1608 | #ifdef USE_TERMIOX | |
bd791fe1 | 1609 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1610 | { |
bd791fe1 | 1611 | void *termx; |
40978c2b | 1612 | |
bd791fe1 | 1613 | TRACE("%d, %p", fd, data); |
c33efc48 | 1614 | |
ea667be7 ML |
1615 | DEBUG("Getting advanced flow control"); |
1616 | ||
bd791fe1 | 1617 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1618 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1619 | |
bd791fe1 ML |
1620 | if (ioctl(fd, TCGETX, termx) < 0) { |
1621 | free(termx); | |
dc422c04 | 1622 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1623 | } |
40978c2b | 1624 | |
bd791fe1 ML |
1625 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1626 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1627 | |
bd791fe1 | 1628 | free(termx); |
8d43110a | 1629 | |
c33efc48 | 1630 | RETURN_OK(); |
40978c2b ML |
1631 | } |
1632 | ||
bd791fe1 | 1633 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1634 | { |
bd791fe1 | 1635 | void *termx; |
40978c2b | 1636 | |
bd791fe1 | 1637 | TRACE("%d, %p", fd, data); |
c33efc48 | 1638 | |
ea667be7 ML |
1639 | DEBUG("Getting advanced flow control"); |
1640 | ||
bd791fe1 | 1641 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1642 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1643 | |
bd791fe1 ML |
1644 | if (ioctl(fd, TCGETX, termx) < 0) { |
1645 | free(termx); | |
dc422c04 | 1646 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1647 | } |
40978c2b | 1648 | |
ea667be7 ML |
1649 | DEBUG("Setting advanced flow control"); |
1650 | ||
bd791fe1 ML |
1651 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1652 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1653 | |
bd791fe1 ML |
1654 | if (ioctl(fd, TCSETX, termx) < 0) { |
1655 | free(termx); | |
dc422c04 | 1656 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1657 | } |
1658 | ||
bd791fe1 | 1659 | free(termx); |
40978c2b | 1660 | |
c33efc48 | 1661 | RETURN_OK(); |
40978c2b ML |
1662 | } |
1663 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1664 | |
eb6ed20f ML |
1665 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1666 | struct sp_port_config *config) | |
8094e4a0 | 1667 | { |
da2748bf | 1668 | unsigned int i; |
cbf628c7 | 1669 | |
c33efc48 ML |
1670 | TRACE("%p, %p, %p", port, data, config); |
1671 | ||
7890cef6 | 1672 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1673 | |
8094e4a0 | 1674 | #ifdef _WIN32 |
e33ab9aa | 1675 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1676 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1677 | |
067417af | 1678 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1679 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1680 | config->baudrate = std_baudrates[i].value; |
1681 | break; | |
1682 | } | |
1683 | } | |
1684 | ||
1685 | if (i == NUM_STD_BAUDRATES) | |
1686 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1687 | config->baudrate = data->dcb.BaudRate; |
067417af | 1688 | |
e33ab9aa | 1689 | config->bits = data->dcb.ByteSize; |
067417af | 1690 | |
2913355f ML |
1691 | switch (data->dcb.Parity) { |
1692 | case NOPARITY: | |
067417af | 1693 | config->parity = SP_PARITY_NONE; |
2913355f ML |
1694 | break; |
1695 | case ODDPARITY: | |
1696 | config->parity = SP_PARITY_ODD; | |
1697 | break; | |
1698 | case EVENPARITY: | |
1699 | config->parity = SP_PARITY_EVEN; | |
1700 | break; | |
1701 | case MARKPARITY: | |
1702 | config->parity = SP_PARITY_MARK; | |
1703 | break; | |
1704 | case SPACEPARITY: | |
1705 | config->parity = SP_PARITY_SPACE; | |
1706 | break; | |
1707 | default: | |
1708 | config->parity = -1; | |
1709 | } | |
067417af | 1710 | |
e33ab9aa | 1711 | switch (data->dcb.StopBits) { |
067417af ML |
1712 | case ONESTOPBIT: |
1713 | config->stopbits = 1; | |
1714 | break; | |
1715 | case TWOSTOPBITS: | |
1716 | config->stopbits = 2; | |
1717 | break; | |
1718 | default: | |
1719 | config->stopbits = -1; | |
1720 | } | |
1721 | ||
e33ab9aa | 1722 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1723 | case RTS_CONTROL_DISABLE: |
1724 | config->rts = SP_RTS_OFF; | |
1725 | break; | |
1726 | case RTS_CONTROL_ENABLE: | |
1727 | config->rts = SP_RTS_ON; | |
1728 | break; | |
1729 | case RTS_CONTROL_HANDSHAKE: | |
1730 | config->rts = SP_RTS_FLOW_CONTROL; | |
1731 | break; | |
1732 | default: | |
1733 | config->rts = -1; | |
067417af ML |
1734 | } |
1735 | ||
e33ab9aa | 1736 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1737 | |
e33ab9aa | 1738 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1739 | case DTR_CONTROL_DISABLE: |
1740 | config->dtr = SP_DTR_OFF; | |
1741 | break; | |
1742 | case DTR_CONTROL_ENABLE: | |
1743 | config->dtr = SP_DTR_ON; | |
1744 | break; | |
1745 | case DTR_CONTROL_HANDSHAKE: | |
1746 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1747 | break; | |
1748 | default: | |
1749 | config->dtr = -1; | |
067417af ML |
1750 | } |
1751 | ||
e33ab9aa ML |
1752 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1753 | ||
c6754b45 ML |
1754 | if (data->dcb.fInX) { |
1755 | if (data->dcb.fOutX) | |
1756 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1757 | else | |
1758 | config->xon_xoff = SP_XONXOFF_IN; | |
1759 | } else { | |
1760 | if (data->dcb.fOutX) | |
1761 | config->xon_xoff = SP_XONXOFF_OUT; | |
1762 | else | |
1763 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1764 | } | |
1765 | ||
e33ab9aa ML |
1766 | #else // !_WIN32 |
1767 | ||
1768 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1769 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1770 | |
1771 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1772 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1773 | |
1774 | #ifdef USE_TERMIOX | |
bd791fe1 | 1775 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1776 | |
1777 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1778 | data->termiox_supported = 0; | |
1779 | else if (ret < 0) | |
c33efc48 | 1780 | RETURN_CODEVAL(ret); |
68ec29db ML |
1781 | else |
1782 | data->termiox_supported = 1; | |
1783 | #else | |
1784 | data->termiox_supported = 0; | |
40978c2b ML |
1785 | #endif |
1786 | ||
067417af | 1787 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1788 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1789 | config->baudrate = std_baudrates[i].value; |
1790 | break; | |
1791 | } | |
1792 | } | |
1793 | ||
31b3a8f5 MH |
1794 | if (i == NUM_STD_BAUDRATES) { |
1795 | #ifdef __APPLE__ | |
1796 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1797 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1798 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1799 | #else |
067417af | 1800 | config->baudrate = -1; |
31b3a8f5 MH |
1801 | #endif |
1802 | } | |
067417af | 1803 | |
e33ab9aa | 1804 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1805 | case CS8: |
1806 | config->bits = 8; | |
1807 | break; | |
1808 | case CS7: | |
1809 | config->bits = 7; | |
1810 | break; | |
1811 | case CS6: | |
1812 | config->bits = 6; | |
1813 | break; | |
1814 | case CS5: | |
1815 | config->bits = 5; | |
1816 | break; | |
1817 | default: | |
1818 | config->bits = -1; | |
1819 | } | |
1820 | ||
e33ab9aa | 1821 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1822 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1823 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1824 | config->parity = -1; |
c3e05092 | 1825 | #ifdef CMSPAR |
e432ce60 ML |
1826 | else if (data->term.c_cflag & CMSPAR) |
1827 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1828 | #endif |
067417af | 1829 | else |
e33ab9aa | 1830 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1831 | |
e33ab9aa | 1832 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1833 | |
e33ab9aa | 1834 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1835 | config->rts = SP_RTS_FLOW_CONTROL; |
1836 | config->cts = SP_CTS_FLOW_CONTROL; | |
1837 | } else { | |
bd791fe1 | 1838 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1839 | config->rts = SP_RTS_FLOW_CONTROL; |
1840 | else | |
1841 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1842 | ||
bd791fe1 | 1843 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1844 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1845 | } |
1846 | ||
bd791fe1 | 1847 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1848 | config->dtr = SP_DTR_FLOW_CONTROL; |
1849 | else | |
1850 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1851 | ||
bd791fe1 | 1852 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1853 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1854 | |
e29b93a5 ML |
1855 | if (data->term.c_iflag & IXOFF) { |
1856 | if (data->term.c_iflag & IXON) | |
1857 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1858 | else | |
1859 | config->xon_xoff = SP_XONXOFF_IN; | |
1860 | } else { | |
1861 | if (data->term.c_iflag & IXON) | |
1862 | config->xon_xoff = SP_XONXOFF_OUT; | |
1863 | else | |
1864 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1865 | } | |
067417af ML |
1866 | #endif |
1867 | ||
c33efc48 | 1868 | RETURN_OK(); |
067417af ML |
1869 | } |
1870 | ||
7a6d2196 | 1871 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1872 | const struct sp_port_config *config) |
18fc2dd1 | 1873 | { |
e33ab9aa | 1874 | unsigned int i; |
31b3a8f5 MH |
1875 | #ifdef __APPLE__ |
1876 | BAUD_TYPE baud_nonstd; | |
1877 | ||
1878 | baud_nonstd = B0; | |
1879 | #endif | |
5cea279a | 1880 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1881 | int baud_nonstd = 0; |
1882 | #endif | |
18fc2dd1 | 1883 | |
c33efc48 ML |
1884 | TRACE("%p, %p, %p", port, data, config); |
1885 | ||
7890cef6 | 1886 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1887 | |
e33ab9aa | 1888 | #ifdef _WIN32 |
988ace6c | 1889 | BYTE* new_buf; |
6bd6a8b5 ML |
1890 | |
1891 | TRY(await_write_completion(port)); | |
1892 | ||
eac329d2 | 1893 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1894 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1895 | if (config->baudrate == std_baudrates[i].value) { | |
1896 | data->dcb.BaudRate = std_baudrates[i].index; | |
1897 | break; | |
1898 | } | |
1899 | } | |
18fc2dd1 | 1900 | |
e33ab9aa ML |
1901 | if (i == NUM_STD_BAUDRATES) |
1902 | data->dcb.BaudRate = config->baudrate; | |
39df7833 ML |
1903 | |
1904 | /* Allocate write buffer for 50ms of data at baud rate. */ | |
1905 | port->write_buf_size = max(config->baudrate / (8 * 20), 1); | |
988ace6c ML |
1906 | new_buf = realloc(port->write_buf, port->write_buf_size); |
1907 | if (!new_buf) | |
39df7833 | 1908 | RETURN_ERROR(SP_ERR_MEM, "Allocating write buffer failed"); |
988ace6c | 1909 | port->write_buf = new_buf; |
e33ab9aa | 1910 | } |
18fc2dd1 | 1911 | |
e33ab9aa ML |
1912 | if (config->bits >= 0) |
1913 | data->dcb.ByteSize = config->bits; | |
1914 | ||
1915 | if (config->parity >= 0) { | |
1916 | switch (config->parity) { | |
e33ab9aa ML |
1917 | case SP_PARITY_NONE: |
1918 | data->dcb.Parity = NOPARITY; | |
1919 | break; | |
e432ce60 ML |
1920 | case SP_PARITY_ODD: |
1921 | data->dcb.Parity = ODDPARITY; | |
1922 | break; | |
e33ab9aa ML |
1923 | case SP_PARITY_EVEN: |
1924 | data->dcb.Parity = EVENPARITY; | |
1925 | break; | |
e432ce60 ML |
1926 | case SP_PARITY_MARK: |
1927 | data->dcb.Parity = MARKPARITY; | |
1928 | break; | |
1929 | case SP_PARITY_SPACE: | |
1930 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1931 | break; |
1932 | default: | |
c33efc48 | 1933 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1934 | } |
18fc2dd1 ML |
1935 | } |
1936 | ||
e33ab9aa ML |
1937 | if (config->stopbits >= 0) { |
1938 | switch (config->stopbits) { | |
1939 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1940 | case 1: | |
1941 | data->dcb.StopBits = ONESTOPBIT; | |
1942 | break; | |
1943 | case 2: | |
1944 | data->dcb.StopBits = TWOSTOPBITS; | |
1945 | break; | |
1946 | default: | |
c33efc48 | 1947 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1948 | } |
1949 | } | |
1950 | ||
1951 | if (config->rts >= 0) { | |
1952 | switch (config->rts) { | |
1953 | case SP_RTS_OFF: | |
1954 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1955 | break; | |
1956 | case SP_RTS_ON: | |
1957 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1958 | break; | |
1959 | case SP_RTS_FLOW_CONTROL: | |
1960 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1961 | break; | |
1962 | default: | |
c33efc48 | 1963 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1964 | } |
1965 | } | |
1966 | ||
1967 | if (config->cts >= 0) { | |
1968 | switch (config->cts) { | |
1969 | case SP_CTS_IGNORE: | |
1970 | data->dcb.fOutxCtsFlow = FALSE; | |
1971 | break; | |
1972 | case SP_CTS_FLOW_CONTROL: | |
1973 | data->dcb.fOutxCtsFlow = TRUE; | |
1974 | break; | |
1975 | default: | |
c33efc48 | 1976 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1977 | } |
1978 | } | |
1979 | ||
1980 | if (config->dtr >= 0) { | |
1981 | switch (config->dtr) { | |
1982 | case SP_DTR_OFF: | |
1983 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1984 | break; | |
1985 | case SP_DTR_ON: | |
1986 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1987 | break; | |
1988 | case SP_DTR_FLOW_CONTROL: | |
1989 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1990 | break; | |
1991 | default: | |
c33efc48 | 1992 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1993 | } |
1994 | } | |
1995 | ||
1996 | if (config->dsr >= 0) { | |
1997 | switch (config->dsr) { | |
1998 | case SP_DSR_IGNORE: | |
1999 | data->dcb.fOutxDsrFlow = FALSE; | |
2000 | break; | |
2001 | case SP_DSR_FLOW_CONTROL: | |
2002 | data->dcb.fOutxDsrFlow = TRUE; | |
2003 | break; | |
2004 | default: | |
c33efc48 | 2005 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 2006 | } |
18fc2dd1 ML |
2007 | } |
2008 | ||
e33ab9aa ML |
2009 | if (config->xon_xoff >= 0) { |
2010 | switch (config->xon_xoff) { | |
2011 | case SP_XONXOFF_DISABLED: | |
2012 | data->dcb.fInX = FALSE; | |
2013 | data->dcb.fOutX = FALSE; | |
2014 | break; | |
2015 | case SP_XONXOFF_IN: | |
2016 | data->dcb.fInX = TRUE; | |
2017 | data->dcb.fOutX = FALSE; | |
2018 | break; | |
2019 | case SP_XONXOFF_OUT: | |
2020 | data->dcb.fInX = FALSE; | |
2021 | data->dcb.fOutX = TRUE; | |
2022 | break; | |
2023 | case SP_XONXOFF_INOUT: | |
2024 | data->dcb.fInX = TRUE; | |
2025 | data->dcb.fOutX = TRUE; | |
2026 | break; | |
2027 | default: | |
c33efc48 | 2028 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2029 | } |
2030 | } | |
2031 | ||
2032 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 2033 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 2034 | |
31b3a8f5 | 2035 | #else /* !_WIN32 */ |
e33ab9aa | 2036 | |
7a6d2196 ML |
2037 | int controlbits; |
2038 | ||
eac329d2 | 2039 | if (config->baudrate >= 0) { |
e33ab9aa ML |
2040 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
2041 | if (config->baudrate == std_baudrates[i].value) { | |
2042 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2043 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
2044 | |
2045 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2046 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
2047 | break; |
2048 | } | |
2049 | } | |
2050 | ||
31b3a8f5 MH |
2051 | /* Non-standard baud rate */ |
2052 | if (i == NUM_STD_BAUDRATES) { | |
2053 | #ifdef __APPLE__ | |
24abdb68 | 2054 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2055 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2056 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2057 | baud_nonstd = config->baudrate; |
5cea279a | 2058 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2059 | baud_nonstd = 1; |
31b3a8f5 | 2060 | #else |
c33efc48 | 2061 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2062 | #endif |
2063 | } | |
e33ab9aa ML |
2064 | } |
2065 | ||
2066 | if (config->bits >= 0) { | |
2067 | data->term.c_cflag &= ~CSIZE; | |
2068 | switch (config->bits) { | |
2069 | case 8: | |
2070 | data->term.c_cflag |= CS8; | |
2071 | break; | |
2072 | case 7: | |
2073 | data->term.c_cflag |= CS7; | |
2074 | break; | |
2075 | case 6: | |
2076 | data->term.c_cflag |= CS6; | |
2077 | break; | |
23922313 UH |
2078 | case 5: |
2079 | data->term.c_cflag |= CS5; | |
2080 | break; | |
e33ab9aa | 2081 | default: |
c33efc48 | 2082 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2083 | } |
2084 | } | |
2085 | ||
2086 | if (config->parity >= 0) { | |
2087 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2088 | data->term.c_cflag &= ~(PARENB | PARODD); |
2089 | #ifdef CMSPAR | |
2090 | data->term.c_cflag &= ~CMSPAR; | |
2091 | #endif | |
e33ab9aa ML |
2092 | switch (config->parity) { |
2093 | case SP_PARITY_NONE: | |
2094 | data->term.c_iflag |= IGNPAR; | |
2095 | break; | |
2096 | case SP_PARITY_EVEN: | |
2097 | data->term.c_cflag |= PARENB; | |
2098 | break; | |
2099 | case SP_PARITY_ODD: | |
2100 | data->term.c_cflag |= PARENB | PARODD; | |
2101 | break; | |
afb518f0 | 2102 | #ifdef CMSPAR |
e432ce60 | 2103 | case SP_PARITY_MARK: |
c3e05092 | 2104 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2105 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2106 | break; |
2107 | case SP_PARITY_SPACE: | |
c3e05092 | 2108 | data->term.c_cflag |= PARENB; |
c3e05092 | 2109 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2110 | break; |
afb518f0 ML |
2111 | #else |
2112 | case SP_PARITY_MARK: | |
2113 | case SP_PARITY_SPACE: | |
2114 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2115 | #endif | |
e33ab9aa | 2116 | default: |
c33efc48 | 2117 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2118 | } |
2119 | } | |
2120 | ||
2121 | if (config->stopbits >= 0) { | |
2122 | data->term.c_cflag &= ~CSTOPB; | |
2123 | switch (config->stopbits) { | |
2124 | case 1: | |
2125 | data->term.c_cflag &= ~CSTOPB; | |
2126 | break; | |
2127 | case 2: | |
2128 | data->term.c_cflag |= CSTOPB; | |
2129 | break; | |
2130 | default: | |
c33efc48 | 2131 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2132 | } |
2133 | } | |
2134 | ||
eac329d2 | 2135 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2136 | if (data->termiox_supported) { |
bd791fe1 | 2137 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2138 | switch (config->rts) { |
2139 | case SP_RTS_OFF: | |
2140 | case SP_RTS_ON: | |
2141 | controlbits = TIOCM_RTS; | |
2142 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2143 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2144 | break; |
2145 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2146 | data->rts_flow = 1; |
68ec29db ML |
2147 | break; |
2148 | default: | |
2149 | break; | |
e33ab9aa | 2150 | } |
68ec29db | 2151 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2152 | data->cts_flow = 1; |
e33ab9aa | 2153 | |
bd791fe1 | 2154 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2155 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2156 | else |
2157 | data->term.c_iflag &= ~CRTSCTS; | |
2158 | } else { | |
2159 | /* Asymmetric use of RTS/CTS not supported. */ | |
2160 | if (data->term.c_iflag & CRTSCTS) { | |
2161 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2162 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2163 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2164 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2165 | } |
2166 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2167 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2168 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2169 | } |
e33ab9aa | 2170 | } else { |
68ec29db ML |
2171 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2172 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2173 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2174 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2175 | } |
2176 | ||
2177 | if (config->rts >= 0) { | |
2178 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2179 | data->term.c_iflag |= CRTSCTS; | |
2180 | } else { | |
2181 | controlbits = TIOCM_RTS; | |
2182 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2183 | &controlbits) < 0) | |
c33efc48 | 2184 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2185 | } |
e33ab9aa ML |
2186 | } |
2187 | } | |
2188 | } | |
2189 | ||
eac329d2 | 2190 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2191 | if (data->termiox_supported) { |
bd791fe1 | 2192 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2193 | switch (config->dtr) { |
2194 | case SP_DTR_OFF: | |
2195 | case SP_DTR_ON: | |
2196 | controlbits = TIOCM_DTR; | |
2197 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2198 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2199 | break; |
2200 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2201 | data->dtr_flow = 1; |
68ec29db ML |
2202 | break; |
2203 | default: | |
2204 | break; | |
2205 | } | |
2206 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2207 | data->dsr_flow = 1; |
68ec29db ML |
2208 | } else { |
2209 | /* DTR/DSR flow control not supported. */ | |
2210 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2211 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2212 | |
68ec29db ML |
2213 | if (config->dtr >= 0) { |
2214 | controlbits = TIOCM_DTR; | |
2215 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2216 | &controlbits) < 0) | |
c33efc48 | 2217 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2218 | } |
e33ab9aa ML |
2219 | } |
2220 | } | |
2221 | ||
2222 | if (config->xon_xoff >= 0) { | |
2223 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2224 | switch (config->xon_xoff) { | |
2225 | case SP_XONXOFF_DISABLED: | |
2226 | break; | |
2227 | case SP_XONXOFF_IN: | |
2228 | data->term.c_iflag |= IXOFF; | |
2229 | break; | |
2230 | case SP_XONXOFF_OUT: | |
2231 | data->term.c_iflag |= IXON | IXANY; | |
2232 | break; | |
2233 | case SP_XONXOFF_INOUT: | |
2234 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2235 | break; | |
2236 | default: | |
c33efc48 | 2237 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2238 | } |
2239 | } | |
2240 | ||
3f5c06d0 | 2241 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2242 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2243 | |
2244 | #ifdef __APPLE__ | |
2245 | if (baud_nonstd != B0) { | |
2246 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2247 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2248 | /* |
2249 | * Set baud rates in data->term to correct, but incompatible | |
2250 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2251 | */ | |
31b3a8f5 | 2252 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2253 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2254 | } |
7a6d2196 | 2255 | #elif defined(__linux__) |
5cea279a | 2256 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2257 | if (baud_nonstd) |
2258 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2259 | #endif |
40978c2b | 2260 | #ifdef USE_TERMIOX |
68ec29db | 2261 | if (data->termiox_supported) |
bd791fe1 | 2262 | TRY(set_flow(port->fd, data)); |
40978c2b | 2263 | #endif |
7a6d2196 | 2264 | #endif |
31b3a8f5 MH |
2265 | |
2266 | #endif /* !_WIN32 */ | |
e33ab9aa | 2267 | |
c33efc48 | 2268 | RETURN_OK(); |
e33ab9aa ML |
2269 | } |
2270 | ||
970f279a | 2271 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2272 | { |
59131d60 | 2273 | struct sp_port_config *config; |
9b1502ef | 2274 | |
00d8c56d UH |
2275 | TRACE("%p", config_ptr); |
2276 | ||
9b1502ef ML |
2277 | if (!config_ptr) |
2278 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2279 | ||
59131d60 ML |
2280 | *config_ptr = NULL; |
2281 | ||
2282 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2283 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2284 | |
59131d60 ML |
2285 | config->baudrate = -1; |
2286 | config->bits = -1; | |
2287 | config->parity = -1; | |
2288 | config->stopbits = -1; | |
2289 | config->rts = -1; | |
2290 | config->cts = -1; | |
2291 | config->dtr = -1; | |
2292 | config->dsr = -1; | |
2293 | ||
2294 | *config_ptr = config; | |
2295 | ||
9b1502ef ML |
2296 | RETURN_OK(); |
2297 | } | |
2298 | ||
970f279a | 2299 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2300 | { |
2301 | TRACE("%p", config); | |
2302 | ||
2303 | if (!config) | |
2304 | DEBUG("Null config"); | |
2305 | else | |
2306 | free(config); | |
2307 | ||
2308 | RETURN(); | |
2309 | } | |
2310 | ||
970f279a AJ |
2311 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2312 | struct sp_port_config *config) | |
70cd37de ML |
2313 | { |
2314 | struct port_data data; | |
2315 | ||
2316 | TRACE("%p, %p", port, config); | |
2317 | ||
2318 | CHECK_OPEN_PORT(); | |
2319 | ||
2320 | if (!config) | |
9b1502ef | 2321 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2322 | |
2323 | TRY(get_config(port, &data, config)); | |
2324 | ||
2325 | RETURN_OK(); | |
2326 | } | |
2327 | ||
970f279a AJ |
2328 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2329 | const struct sp_port_config *config) | |
e33ab9aa | 2330 | { |
8f189c4c | 2331 | struct port_data data; |
e33ab9aa ML |
2332 | struct sp_port_config prev_config; |
2333 | ||
c33efc48 ML |
2334 | TRACE("%p, %p", port, config); |
2335 | ||
dec10e31 | 2336 | CHECK_OPEN_PORT(); |
823690ae ML |
2337 | |
2338 | if (!config) | |
c33efc48 | 2339 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2340 | |
e33ab9aa ML |
2341 | TRY(get_config(port, &data, &prev_config)); |
2342 | TRY(set_config(port, &data, config)); | |
74510d4b | 2343 | |
c33efc48 | 2344 | RETURN_OK(); |
74510d4b ML |
2345 | } |
2346 | ||
9b1502ef | 2347 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2348 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2349 | struct port_data data; \ |
e33ab9aa | 2350 | struct sp_port_config config; \ |
c33efc48 | 2351 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2352 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2353 | TRY(get_config(port, &data, &config)); \ |
2354 | config.x = x; \ | |
2355 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2356 | RETURN_OK(); \ |
9b1502ef | 2357 | } \ |
970f279a AJ |
2358 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2359 | type *x) { \ | |
00d8c56d | 2360 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2361 | if (!x) \ |
2362 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2363 | if (!config) \ |
2364 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2365 | *x = config->x; \ | |
2366 | RETURN_OK(); \ | |
2367 | } \ | |
970f279a AJ |
2368 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2369 | type x) { \ | |
9b1502ef ML |
2370 | TRACE("%p, %d", config, x); \ |
2371 | if (!config) \ | |
2372 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2373 | config->x = x; \ | |
2374 | RETURN_OK(); \ | |
9069c2fb ML |
2375 | } |
2376 | ||
9b1502ef ML |
2377 | CREATE_ACCESSORS(baudrate, int) |
2378 | CREATE_ACCESSORS(bits, int) | |
2379 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2380 | CREATE_ACCESSORS(stopbits, int) | |
2381 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2382 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2383 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2384 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2385 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2386 | ||
970f279a AJ |
2387 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2388 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2389 | { |
9b1502ef ML |
2390 | if (!config) |
2391 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2392 | |
2393 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2394 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2395 | |
e33ab9aa | 2396 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2397 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2398 | else |
9b1502ef | 2399 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2400 | |
2401 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2402 | config->rts = SP_RTS_FLOW_CONTROL; |
2403 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2404 | } else { |
9b1502ef ML |
2405 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2406 | config->rts = SP_RTS_ON; | |
2407 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2408 | } |
2409 | ||
2410 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2411 | config->dtr = SP_DTR_FLOW_CONTROL; |
2412 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2413 | } else { |
9b1502ef ML |
2414 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2415 | config->dtr = SP_DTR_ON; | |
2416 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2417 | } |
2418 | ||
9b1502ef ML |
2419 | RETURN_OK(); |
2420 | } | |
2421 | ||
970f279a AJ |
2422 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2423 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2424 | { |
2425 | struct port_data data; | |
2426 | struct sp_port_config config; | |
2427 | ||
2428 | TRACE("%p, %d", port, flowcontrol); | |
2429 | ||
2430 | CHECK_OPEN_PORT(); | |
2431 | ||
2432 | TRY(get_config(port, &data, &config)); | |
2433 | ||
2434 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2435 | ||
e33ab9aa ML |
2436 | TRY(set_config(port, &data, &config)); |
2437 | ||
c33efc48 | 2438 | RETURN_OK(); |
e33ab9aa ML |
2439 | } |
2440 | ||
970f279a AJ |
2441 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2442 | enum sp_signal *signals) | |
8cf7c697 | 2443 | { |
c33efc48 ML |
2444 | TRACE("%p, %p", port, signals); |
2445 | ||
dec10e31 | 2446 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2447 | |
2448 | if (!signals) | |
c33efc48 | 2449 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2450 | |
7890cef6 | 2451 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2452 | |
8cf7c697 ML |
2453 | *signals = 0; |
2454 | #ifdef _WIN32 | |
2455 | DWORD bits; | |
2456 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2457 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2458 | if (bits & MS_CTS_ON) |
2459 | *signals |= SP_SIG_CTS; | |
2460 | if (bits & MS_DSR_ON) | |
2461 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2462 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2463 | *signals |= SP_SIG_DCD; |
2464 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2465 | *signals |= SP_SIG_RI; |
2466 | #else | |
2467 | int bits; | |
2468 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2469 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2470 | if (bits & TIOCM_CTS) |
2471 | *signals |= SP_SIG_CTS; | |
2472 | if (bits & TIOCM_DSR) | |
2473 | *signals |= SP_SIG_DSR; | |
2474 | if (bits & TIOCM_CAR) | |
2475 | *signals |= SP_SIG_DCD; | |
2476 | if (bits & TIOCM_RNG) | |
2477 | *signals |= SP_SIG_RI; | |
2478 | #endif | |
c33efc48 | 2479 | RETURN_OK(); |
8cf7c697 ML |
2480 | } |
2481 | ||
970f279a | 2482 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2483 | { |
c33efc48 ML |
2484 | TRACE("%p", port); |
2485 | ||
dec10e31 | 2486 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2487 | #ifdef _WIN32 |
2488 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2489 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2490 | #else |
2491 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2492 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2493 | #endif |
2494 | ||
c33efc48 | 2495 | RETURN_OK(); |
90cc3ee6 ML |
2496 | } |
2497 | ||
970f279a | 2498 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2499 | { |
c33efc48 ML |
2500 | TRACE("%p", port); |
2501 | ||
dec10e31 | 2502 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2503 | #ifdef _WIN32 |
2504 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2505 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2506 | #else |
2507 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2508 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2509 | #endif |
2510 | ||
c33efc48 | 2511 | RETURN_OK(); |
90cc3ee6 ML |
2512 | } |
2513 | ||
970f279a | 2514 | SP_API int sp_last_error_code(void) |
74510d4b | 2515 | { |
7890cef6 | 2516 | TRACE_VOID(); |
74510d4b | 2517 | #ifdef _WIN32 |
9caa2e86 | 2518 | RETURN_INT(GetLastError()); |
74510d4b | 2519 | #else |
9caa2e86 | 2520 | RETURN_INT(errno); |
74510d4b ML |
2521 | #endif |
2522 | } | |
2523 | ||
970f279a | 2524 | SP_API char *sp_last_error_message(void) |
74510d4b | 2525 | { |
7890cef6 | 2526 | TRACE_VOID(); |
c33efc48 | 2527 | |
74510d4b | 2528 | #ifdef _WIN32 |
bf40b1ce | 2529 | char *message; |
74510d4b ML |
2530 | DWORD error = GetLastError(); |
2531 | ||
bf40b1ce | 2532 | DWORD length = FormatMessageA( |
74510d4b ML |
2533 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2534 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2535 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2536 | NULL, | |
2537 | error, | |
2538 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
bf40b1ce | 2539 | (LPSTR) &message, |
74510d4b ML |
2540 | 0, NULL ); |
2541 | ||
9a0c4bbd ML |
2542 | if (length >= 2 && message[length - 2] == '\r') |
2543 | message[length - 2] = '\0'; | |
2544 | ||
9caa2e86 | 2545 | RETURN_STRING(message); |
74510d4b | 2546 | #else |
9caa2e86 | 2547 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2548 | #endif |
2549 | } | |
2550 | ||
970f279a | 2551 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2552 | { |
c33efc48 ML |
2553 | TRACE("%s", message); |
2554 | ||
74510d4b ML |
2555 | #ifdef _WIN32 |
2556 | LocalFree(message); | |
64eec30d ML |
2557 | #else |
2558 | (void)message; | |
74510d4b | 2559 | #endif |
c33efc48 ML |
2560 | |
2561 | RETURN(); | |
74510d4b | 2562 | } |
863b35e6 | 2563 | |
970f279a | 2564 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2565 | { |
c33efc48 ML |
2566 | TRACE("%p", handler); |
2567 | ||
863b35e6 | 2568 | sp_debug_handler = handler; |
c33efc48 ML |
2569 | |
2570 | RETURN(); | |
863b35e6 ML |
2571 | } |
2572 | ||
970f279a | 2573 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2574 | { |
2575 | va_list args; | |
2576 | va_start(args, format); | |
2577 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2578 | fputs("sp: ", stderr); |
863b35e6 ML |
2579 | vfprintf(stderr, format, args); |
2580 | } | |
2581 | va_end(args); | |
2582 | } | |
524b0e14 | 2583 | |
970f279a | 2584 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2585 | { |
2586 | return SP_PACKAGE_VERSION_MAJOR; | |
2587 | } | |
2588 | ||
970f279a | 2589 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2590 | { |
2591 | return SP_PACKAGE_VERSION_MINOR; | |
2592 | } | |
2593 | ||
970f279a | 2594 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2595 | { |
2596 | return SP_PACKAGE_VERSION_MICRO; | |
2597 | } | |
2598 | ||
970f279a | 2599 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2600 | { |
2601 | return SP_PACKAGE_VERSION_STRING; | |
2602 | } | |
2603 | ||
970f279a | 2604 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2605 | { |
2606 | return SP_LIB_VERSION_CURRENT; | |
2607 | } | |
2608 | ||
970f279a | 2609 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2610 | { |
2611 | return SP_LIB_VERSION_REVISION; | |
2612 | } | |
2613 | ||
970f279a | 2614 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2615 | { |
2616 | return SP_LIB_VERSION_AGE; | |
2617 | } | |
2618 | ||
970f279a | 2619 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2620 | { |
2621 | return SP_LIB_VERSION_STRING; | |
2622 | } | |
2623 | ||
2624 | /** @} */ |