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Commit | Line | Data |
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74510d4b ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
f77bb46d ML |
5 | * Copyright (C) 2010-2015 Uwe Hermann <uwe@hermann-uwe.de> |
6 | * Copyright (C) 2013-2015 Martin Ling <martin-libserialport@earth.li> | |
31b3a8f5 | 7 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> |
a93fb468 | 8 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> |
74510d4b ML |
9 | * |
10 | * This program is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU Lesser General Public License as | |
12 | * published by the Free Software Foundation, either version 3 of the | |
13 | * License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public License | |
21 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
1a584c45 | 24 | #include <config.h> |
f6a1fb65 | 25 | #include "libserialport.h" |
e33dcf90 | 26 | #include "libserialport_internal.h" |
da2748bf | 27 | |
6c6aebe7 | 28 | static const struct std_baudrate std_baudrates[] = { |
da2748bf ML |
29 | #ifdef _WIN32 |
30 | /* | |
31 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
32 | * have documented CBR_* macros. | |
33 | */ | |
34 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
35 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 36 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 37 | #else |
eac329d2 UH |
38 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
39 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
40 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
41 | BAUD(230400), | |
da2748bf | 42 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 43 | BAUD(460800), |
da2748bf ML |
44 | #endif |
45 | #endif | |
46 | }; | |
47 | ||
6c6aebe7 UH |
48 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) |
49 | ||
863b35e6 ML |
50 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
51 | ||
eb6ed20f ML |
52 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
53 | struct sp_port_config *config); | |
e33dcf90 | 54 | |
eb6ed20f ML |
55 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
56 | const struct sp_port_config *config); | |
80186526 | 57 | |
9a7945af ML |
58 | /* Timing abstraction */ |
59 | ||
60 | struct time { | |
3317d678 ML |
61 | #ifdef _WIN32 |
62 | int64_t ticks; | |
63 | #else | |
9a7945af | 64 | struct timeval tv; |
3317d678 | 65 | #endif |
9a7945af ML |
66 | }; |
67 | ||
32dbe2d2 | 68 | struct timeout { |
08eb25f5 ML |
69 | unsigned int ms, limit_ms; |
70 | struct time start, now, end, delta, delta_max; | |
32dbe2d2 ML |
71 | struct timeval delta_tv; |
72 | bool overflow; | |
73 | }; | |
74 | ||
9a7945af | 75 | static void time_get(struct time *time) |
573feabc | 76 | { |
3317d678 ML |
77 | #ifdef _WIN32 |
78 | LARGE_INTEGER count; | |
79 | QueryPerformanceCounter(&count); | |
80 | time->ticks = count.QuadPart; | |
81 | #elif defined(HAVE_CLOCK_GETTIME) | |
f40ea9d4 | 82 | struct timespec ts; |
7fb9a7b0 ML |
83 | if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) |
84 | clock_gettime(CLOCK_REALTIME, &ts); | |
9a7945af ML |
85 | time->tv.tv_sec = ts.tv_sec; |
86 | time->tv.tv_usec = ts.tv_nsec / 1000; | |
192e7749 ML |
87 | #elif defined(__APPLE__) |
88 | mach_timebase_info_data_t info; | |
89 | mach_timebase_info(&info); | |
90 | uint64_t ticks = mach_absolute_time(); | |
91 | uint64_t ns = (ticks * info.numer) / info.denom; | |
9a7945af ML |
92 | time->tv.tv_sec = ns / 1000000000; |
93 | time->tv.tv_usec = (ns % 1000000000) / 1000; | |
f40ea9d4 | 94 | #else |
9a7945af | 95 | gettimeofday(&time->tv, NULL); |
f40ea9d4 | 96 | #endif |
573feabc | 97 | } |
9a7945af ML |
98 | |
99 | static void time_set_ms(struct time *time, unsigned int ms) | |
100 | { | |
3317d678 ML |
101 | #ifdef _WIN32 |
102 | LARGE_INTEGER frequency; | |
103 | QueryPerformanceFrequency(&frequency); | |
104 | time->ticks = ms * (frequency.QuadPart / 1000); | |
105 | #else | |
9a7945af ML |
106 | time->tv.tv_sec = ms / 1000; |
107 | time->tv.tv_usec = (ms % 1000) * 1000; | |
3317d678 | 108 | #endif |
9a7945af ML |
109 | } |
110 | ||
111 | static void time_add(const struct time *a, | |
112 | const struct time *b, struct time *result) | |
113 | { | |
3317d678 ML |
114 | #ifdef _WIN32 |
115 | result->ticks = a->ticks + b->ticks; | |
116 | #else | |
9a7945af | 117 | timeradd(&a->tv, &b->tv, &result->tv); |
3317d678 | 118 | #endif |
9a7945af ML |
119 | } |
120 | ||
121 | static void time_sub(const struct time *a, | |
122 | const struct time *b, struct time *result) | |
123 | { | |
3317d678 ML |
124 | #ifdef _WIN32 |
125 | result->ticks = a->ticks - b->ticks; | |
126 | #else | |
9a7945af | 127 | timersub(&a->tv, &b->tv, &result->tv); |
3317d678 | 128 | #endif |
9a7945af ML |
129 | } |
130 | ||
131 | static bool time_greater(const struct time *a, const struct time *b) | |
132 | { | |
3317d678 ML |
133 | #ifdef _WIN32 |
134 | return (a->ticks > b->ticks); | |
135 | #else | |
9a7945af | 136 | return timercmp(&a->tv, &b->tv, >); |
3317d678 | 137 | #endif |
9a7945af ML |
138 | } |
139 | ||
140 | static void time_as_timeval(const struct time *time, struct timeval *tv) | |
141 | { | |
3317d678 ML |
142 | #ifdef _WIN32 |
143 | LARGE_INTEGER frequency; | |
144 | QueryPerformanceFrequency(&frequency); | |
145 | tv->tv_sec = time->ticks / frequency.QuadPart; | |
146 | tv->tv_usec = (time->ticks % frequency.QuadPart) / | |
147 | (frequency.QuadPart / 1000000); | |
148 | #else | |
9a7945af | 149 | *tv = time->tv; |
3317d678 | 150 | #endif |
9a7945af ML |
151 | } |
152 | ||
153 | static unsigned int time_as_ms(const struct time *time) | |
154 | { | |
3317d678 ML |
155 | #ifdef _WIN32 |
156 | LARGE_INTEGER frequency; | |
157 | QueryPerformanceFrequency(&frequency); | |
158 | return time->ticks / (frequency.QuadPart / 1000); | |
159 | #else | |
9a7945af | 160 | return time->tv.tv_sec * 1000 + time->tv.tv_usec / 1000; |
3317d678 | 161 | #endif |
9a7945af ML |
162 | } |
163 | ||
32dbe2d2 ML |
164 | static void timeout_start(struct timeout *timeout, unsigned int timeout_ms) |
165 | { | |
166 | timeout->ms = timeout_ms; | |
167 | ||
32dbe2d2 ML |
168 | /* Get time at start of operation. */ |
169 | time_get(&timeout->start); | |
170 | /* Define duration of timeout. */ | |
171 | time_set_ms(&timeout->delta, timeout_ms); | |
172 | /* Calculate time at which we should give up. */ | |
173 | time_add(&timeout->start, &timeout->delta, &timeout->end); | |
08eb25f5 ML |
174 | /* Disable limit unless timeout_limit() called. */ |
175 | timeout->limit_ms = 0; | |
176 | } | |
177 | ||
178 | static void timeout_limit(struct timeout *timeout, unsigned int limit_ms) | |
179 | { | |
180 | timeout->limit_ms = limit_ms; | |
181 | timeout->overflow = (timeout->ms > timeout->limit_ms); | |
182 | time_set_ms(&timeout->delta_max, timeout->limit_ms); | |
32dbe2d2 ML |
183 | } |
184 | ||
185 | static bool timeout_check(struct timeout *timeout) | |
186 | { | |
187 | if (timeout->ms == 0) | |
188 | return false; | |
189 | ||
190 | time_get(&timeout->now); | |
191 | time_sub(&timeout->end, &timeout->now, &timeout->delta); | |
08eb25f5 ML |
192 | if (timeout->limit_ms) |
193 | if ((timeout->overflow = time_greater(&timeout->delta, &timeout->delta_max))) | |
194 | timeout->delta = timeout->delta_max; | |
32dbe2d2 ML |
195 | |
196 | return time_greater(&timeout->now, &timeout->end); | |
197 | } | |
198 | ||
3317d678 | 199 | #ifndef _WIN32 |
32dbe2d2 ML |
200 | static struct timeval *timeout_timeval(struct timeout *timeout) |
201 | { | |
202 | if (timeout->ms == 0) | |
203 | return NULL; | |
204 | ||
205 | time_as_timeval(&timeout->delta, &timeout->delta_tv); | |
206 | ||
207 | return &timeout->delta_tv; | |
208 | } | |
3317d678 | 209 | #endif |
32dbe2d2 ML |
210 | |
211 | static unsigned int timeout_remaining_ms(struct timeout *timeout) | |
212 | { | |
213 | if (timeout->ms == 0) | |
214 | return -1; | |
08eb25f5 ML |
215 | else if (timeout->limit_ms && timeout->overflow) |
216 | return timeout->limit_ms; | |
32dbe2d2 ML |
217 | else |
218 | return time_as_ms(&timeout->delta); | |
219 | } | |
573feabc | 220 | |
970f279a | 221 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
222 | { |
223 | struct sp_port *port; | |
5a8810e2 | 224 | #ifndef NO_PORT_METADATA |
a93fb468 | 225 | enum sp_return ret; |
5a8810e2 | 226 | #endif |
5919c913 | 227 | int len; |
d54e9004 | 228 | |
c33efc48 ML |
229 | TRACE("%s, %p", portname, port_ptr); |
230 | ||
32b5ac05 | 231 | if (!port_ptr) |
c33efc48 | 232 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 233 | |
77f262c4 ML |
234 | *port_ptr = NULL; |
235 | ||
d4babed2 | 236 | if (!portname) |
c33efc48 | 237 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 238 | |
7890cef6 | 239 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 240 | |
95bad38c ST |
241 | #if !defined(_WIN32) && defined(HAVE_REALPATH) |
242 | /* | |
243 | * get_port_details() below tries to be too smart and figure out | |
244 | * some transport properties from the port name which breaks with | |
245 | * symlinks. Therefore we canonicalize the portname first. | |
246 | */ | |
247 | char pathbuf[PATH_MAX + 1]; | |
248 | char *res = realpath(portname, pathbuf); | |
249 | if (!res) | |
250 | RETURN_ERROR(SP_ERR_ARG, "Could not retrieve realpath behind port name"); | |
251 | ||
252 | portname = pathbuf; | |
253 | #endif | |
254 | ||
d54e9004 | 255 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 256 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 257 | |
5919c913 ML |
258 | len = strlen(portname) + 1; |
259 | ||
eac329d2 | 260 | if (!(port->name = malloc(len))) { |
d54e9004 | 261 | free(port); |
c33efc48 | 262 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
263 | } |
264 | ||
265 | memcpy(port->name, portname, len); | |
266 | ||
8f471c66 | 267 | #ifdef _WIN32 |
e31f2c6b | 268 | port->usb_path = NULL; |
8f471c66 | 269 | port->hdl = INVALID_HANDLE_VALUE; |
39df7833 ML |
270 | port->write_buf = NULL; |
271 | port->write_buf_size = 0; | |
8f471c66 ML |
272 | #else |
273 | port->fd = -1; | |
274 | #endif | |
275 | ||
e33dcf90 ML |
276 | port->description = NULL; |
277 | port->transport = SP_TRANSPORT_NATIVE; | |
278 | port->usb_bus = -1; | |
279 | port->usb_address = -1; | |
280 | port->usb_vid = -1; | |
281 | port->usb_pid = -1; | |
282 | port->usb_manufacturer = NULL; | |
283 | port->usb_product = NULL; | |
284 | port->usb_serial = NULL; | |
285 | port->bluetooth_address = NULL; | |
286 | ||
e4ce975a | 287 | #ifndef NO_PORT_METADATA |
e33dcf90 | 288 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
289 | sp_free_port(port); |
290 | return ret; | |
291 | } | |
e4ce975a | 292 | #endif |
a93fb468 | 293 | |
77f262c4 ML |
294 | *port_ptr = port; |
295 | ||
c33efc48 | 296 | RETURN_OK(); |
d54e9004 ML |
297 | } |
298 | ||
970f279a | 299 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
300 | { |
301 | TRACE("%p", port); | |
302 | ||
303 | if (!port) | |
304 | return NULL; | |
305 | ||
9caa2e86 | 306 | RETURN_STRING(port->name); |
1c5aae9d ML |
307 | } |
308 | ||
f1480939 | 309 | SP_API char *sp_get_port_description(const struct sp_port *port) |
a93fb468 AJ |
310 | { |
311 | TRACE("%p", port); | |
312 | ||
313 | if (!port || !port->description) | |
314 | return NULL; | |
315 | ||
9caa2e86 | 316 | RETURN_STRING(port->description); |
a93fb468 AJ |
317 | } |
318 | ||
ad036cc8 | 319 | SP_API enum sp_transport sp_get_port_transport(const struct sp_port *port) |
a93fb468 AJ |
320 | { |
321 | TRACE("%p", port); | |
322 | ||
323 | if (!port) | |
324 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
325 | ||
9caa2e86 | 326 | RETURN_INT(port->transport); |
a93fb468 AJ |
327 | } |
328 | ||
970f279a AJ |
329 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
330 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
331 | { |
332 | TRACE("%p", port); | |
333 | ||
334 | if (!port) | |
335 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
336 | if (port->transport != SP_TRANSPORT_USB) | |
337 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
338 | if (port->usb_bus < 0 || port->usb_address < 0) |
339 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 340 | |
dc422c04 UH |
341 | if (usb_bus) |
342 | *usb_bus = port->usb_bus; | |
343 | if (usb_address) | |
344 | *usb_address = port->usb_address; | |
a93fb468 AJ |
345 | |
346 | RETURN_OK(); | |
347 | } | |
348 | ||
970f279a AJ |
349 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
350 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
351 | { |
352 | TRACE("%p", port); | |
353 | ||
354 | if (!port) | |
355 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
356 | if (port->transport != SP_TRANSPORT_USB) | |
357 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
358 | if (port->usb_vid < 0 || port->usb_pid < 0) |
359 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 360 | |
dc422c04 UH |
361 | if (usb_vid) |
362 | *usb_vid = port->usb_vid; | |
363 | if (usb_pid) | |
364 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
365 | |
366 | RETURN_OK(); | |
367 | } | |
368 | ||
970f279a | 369 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
370 | { |
371 | TRACE("%p", port); | |
372 | ||
373 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
374 | return NULL; | |
375 | ||
9caa2e86 | 376 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
377 | } |
378 | ||
970f279a | 379 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
380 | { |
381 | TRACE("%p", port); | |
382 | ||
383 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
384 | return NULL; | |
385 | ||
9caa2e86 | 386 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
387 | } |
388 | ||
970f279a | 389 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
390 | { |
391 | TRACE("%p", port); | |
392 | ||
393 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
394 | return NULL; | |
395 | ||
9caa2e86 | 396 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
397 | } |
398 | ||
970f279a | 399 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
400 | { |
401 | TRACE("%p", port); | |
402 | ||
403 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
404 | || !port->bluetooth_address) | |
405 | return NULL; | |
406 | ||
9caa2e86 | 407 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
408 | } |
409 | ||
970f279a AJ |
410 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
411 | void *result_ptr) | |
3c126654 | 412 | { |
00d8c56d | 413 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
414 | |
415 | if (!port) | |
416 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
5f64c285 UH |
417 | if (!result_ptr) |
418 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
3c126654 ML |
419 | |
420 | #ifdef _WIN32 | |
421 | HANDLE *handle_ptr = result_ptr; | |
422 | *handle_ptr = port->hdl; | |
423 | #else | |
424 | int *fd_ptr = result_ptr; | |
425 | *fd_ptr = port->fd; | |
426 | #endif | |
427 | ||
428 | RETURN_OK(); | |
429 | } | |
430 | ||
970f279a AJ |
431 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
432 | struct sp_port **copy_ptr) | |
32b5ac05 | 433 | { |
c33efc48 ML |
434 | TRACE("%p, %p", port, copy_ptr); |
435 | ||
32b5ac05 | 436 | if (!copy_ptr) |
c33efc48 | 437 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
438 | |
439 | *copy_ptr = NULL; | |
440 | ||
c33efc48 ML |
441 | if (!port) |
442 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
443 | ||
444 | if (!port->name) | |
445 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 446 | |
ea667be7 ML |
447 | DEBUG("Copying port structure"); |
448 | ||
9caa2e86 | 449 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
450 | } |
451 | ||
970f279a | 452 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 453 | { |
c33efc48 ML |
454 | TRACE("%p", port); |
455 | ||
00d8c56d | 456 | if (!port) { |
c33efc48 ML |
457 | DEBUG("Null port"); |
458 | RETURN(); | |
459 | } | |
e3b2f7a4 | 460 | |
ea667be7 ML |
461 | DEBUG("Freeing port structure"); |
462 | ||
e3b2f7a4 ML |
463 | if (port->name) |
464 | free(port->name); | |
a93fb468 AJ |
465 | if (port->description) |
466 | free(port->description); | |
467 | if (port->usb_manufacturer) | |
468 | free(port->usb_manufacturer); | |
469 | if (port->usb_product) | |
470 | free(port->usb_product); | |
471 | if (port->usb_serial) | |
472 | free(port->usb_serial); | |
473 | if (port->bluetooth_address) | |
474 | free(port->bluetooth_address); | |
475 | #ifdef _WIN32 | |
476 | if (port->usb_path) | |
477 | free(port->usb_path); | |
39df7833 ML |
478 | if (port->write_buf) |
479 | free(port->write_buf); | |
a93fb468 | 480 | #endif |
e3b2f7a4 ML |
481 | |
482 | free(port); | |
c33efc48 ML |
483 | |
484 | RETURN(); | |
e3b2f7a4 ML |
485 | } |
486 | ||
970f279a AJ |
487 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
488 | const char *portname) | |
3b63f34d ML |
489 | { |
490 | void *tmp; | |
491 | unsigned int count; | |
f92f1f0c | 492 | |
81243567 UH |
493 | for (count = 0; list[count]; count++) |
494 | ; | |
d54e9004 | 495 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
496 | goto fail; |
497 | list = tmp; | |
77f262c4 | 498 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 499 | goto fail; |
db2794ce | 500 | list[count + 1] = NULL; |
3b63f34d | 501 | return list; |
f92f1f0c | 502 | |
3b63f34d ML |
503 | fail: |
504 | sp_free_port_list(list); | |
505 | return NULL; | |
506 | } | |
507 | ||
970f279a | 508 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 509 | { |
23e7fa37 | 510 | #ifndef NO_ENUMERATION |
d54e9004 | 511 | struct sp_port **list; |
48a4076f | 512 | int ret; |
23e7fa37 | 513 | #endif |
24c1a4bb | 514 | |
c33efc48 ML |
515 | TRACE("%p", list_ptr); |
516 | ||
dec10e31 ML |
517 | if (!list_ptr) |
518 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
519 | ||
63926415 UH |
520 | *list_ptr = NULL; |
521 | ||
8d12e620 ML |
522 | #ifdef NO_ENUMERATION |
523 | RETURN_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); | |
524 | #else | |
ea667be7 ML |
525 | DEBUG("Enumerating ports"); |
526 | ||
8d12e620 | 527 | if (!(list = malloc(sizeof(struct sp_port *)))) |
c33efc48 | 528 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
529 | |
530 | list[0] = NULL; | |
3b63f34d | 531 | |
48a4076f | 532 | ret = list_ports(&list); |
77f262c4 | 533 | |
8d12e620 | 534 | if (ret == SP_OK) { |
77f262c4 | 535 | *list_ptr = list; |
8d12e620 ML |
536 | } else { |
537 | sp_free_port_list(list); | |
77f262c4 ML |
538 | *list_ptr = NULL; |
539 | } | |
8d12e620 ML |
540 | |
541 | RETURN_CODEVAL(ret); | |
542 | #endif | |
3b63f34d ML |
543 | } |
544 | ||
970f279a | 545 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
546 | { |
547 | unsigned int i; | |
f92f1f0c | 548 | |
c33efc48 ML |
549 | TRACE("%p", list); |
550 | ||
dec10e31 ML |
551 | if (!list) { |
552 | DEBUG("Null list"); | |
553 | RETURN(); | |
554 | } | |
555 | ||
ea667be7 ML |
556 | DEBUG("Freeing port list"); |
557 | ||
3b63f34d | 558 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 559 | sp_free_port(list[i]); |
3b63f34d | 560 | free(list); |
c33efc48 ML |
561 | |
562 | RETURN(); | |
3b63f34d ML |
563 | } |
564 | ||
c33efc48 | 565 | #define CHECK_PORT() do { \ |
dc422c04 | 566 | if (!port) \ |
c33efc48 | 567 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 568 | if (!port->name) \ |
dec10e31 ML |
569 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
570 | } while (0) | |
571 | #ifdef _WIN32 | |
572 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 | 573 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
8062087a | 574 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 575 | } while (0) |
74510d4b | 576 | #else |
dec10e31 | 577 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 | 578 | if (port->fd < 0) \ |
8062087a | 579 | RETURN_ERROR(SP_ERR_ARG, "Port not open"); \ |
dec10e31 | 580 | } while (0) |
74510d4b | 581 | #endif |
dec10e31 ML |
582 | #define CHECK_OPEN_PORT() do { \ |
583 | CHECK_PORT(); \ | |
584 | CHECK_PORT_HANDLE(); \ | |
585 | } while (0) | |
74510d4b | 586 | |
47fcf8ec ML |
587 | #ifdef WIN32 |
588 | /** To be called after port receive buffer is emptied. */ | |
589 | static enum sp_return restart_wait(struct sp_port *port) | |
590 | { | |
591 | DWORD wait_result; | |
592 | ||
593 | if (port->wait_running) { | |
594 | /* Check status of running wait operation. */ | |
595 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, | |
596 | &wait_result, FALSE)) { | |
597 | DEBUG("Previous wait completed"); | |
598 | port->wait_running = FALSE; | |
599 | } else if (GetLastError() == ERROR_IO_INCOMPLETE) { | |
600 | DEBUG("Previous wait still running"); | |
601 | RETURN_OK(); | |
602 | } else { | |
603 | RETURN_FAIL("GetOverlappedResult() failed"); | |
604 | } | |
605 | } | |
606 | ||
607 | if (!port->wait_running) { | |
608 | /* Start new wait operation. */ | |
609 | if (WaitCommEvent(port->hdl, &port->events, | |
610 | &port->wait_ovl)) { | |
611 | DEBUG("New wait returned, events already pending"); | |
612 | } else if (GetLastError() == ERROR_IO_PENDING) { | |
613 | DEBUG("New wait running in background"); | |
614 | port->wait_running = TRUE; | |
615 | } else { | |
616 | RETURN_FAIL("WaitCommEvent() failed"); | |
617 | } | |
618 | } | |
619 | ||
620 | RETURN_OK(); | |
621 | } | |
622 | #endif | |
623 | ||
970f279a | 624 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 625 | { |
bccc7c9f ML |
626 | struct port_data data; |
627 | struct sp_port_config config; | |
628 | enum sp_return ret; | |
629 | ||
00d8c56d | 630 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 631 | |
dec10e31 ML |
632 | CHECK_PORT(); |
633 | ||
276ef1b9 | 634 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 635 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 636 | |
7890cef6 | 637 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 638 | |
74510d4b | 639 | #ifdef _WIN32 |
537942c9 | 640 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 641 | char *escaped_port_name; |
537942c9 | 642 | COMSTAT status; |
99945a1f ML |
643 | |
644 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 645 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 646 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
647 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
648 | ||
74510d4b | 649 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 650 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
651 | if (flags & SP_MODE_READ) |
652 | desired_access |= GENERIC_READ; | |
653 | if (flags & SP_MODE_WRITE) | |
74510d4b | 654 | desired_access |= GENERIC_WRITE; |
74510d4b | 655 | |
99945a1f | 656 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 657 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
658 | |
659 | free(escaped_port_name); | |
660 | ||
74510d4b | 661 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 662 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
663 | |
664 | /* All timeouts initially disabled. */ | |
665 | port->timeouts.ReadIntervalTimeout = 0; | |
666 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
667 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
668 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
669 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 670 | |
e3dcf906 | 671 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
672 | sp_close(port); |
673 | RETURN_FAIL("SetCommTimeouts() failed"); | |
674 | } | |
e3dcf906 ML |
675 | |
676 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
677 | #define INIT_OVERLAPPED(ovl) do { \ |
678 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
679 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
680 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
681 | == INVALID_HANDLE_VALUE) { \ | |
682 | sp_close(port); \ | |
683 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
684 | } \ | |
685 | } while (0) | |
686 | ||
687 | INIT_OVERLAPPED(read_ovl); | |
688 | INIT_OVERLAPPED(write_ovl); | |
689 | INIT_OVERLAPPED(wait_ovl); | |
690 | ||
691 | /* Set event mask for RX and error events. */ | |
692 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 693 | sp_close(port); |
6f1186aa | 694 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 695 | } |
6f1186aa | 696 | |
e3dcf906 | 697 | port->writing = FALSE; |
47fcf8ec | 698 | port->wait_running = FALSE; |
e3dcf906 | 699 | |
47fcf8ec ML |
700 | ret = restart_wait(port); |
701 | ||
702 | if (ret < 0) { | |
703 | sp_close(port); | |
704 | RETURN_CODEVAL(ret); | |
705 | } | |
74510d4b | 706 | #else |
fa106ef1 | 707 | int flags_local = O_NONBLOCK | O_NOCTTY | O_CLOEXEC; |
f92f1f0c | 708 | |
74510d4b | 709 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 710 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 711 | flags_local |= O_RDWR; |
a036341b | 712 | else if (flags & SP_MODE_READ) |
74510d4b | 713 | flags_local |= O_RDONLY; |
a036341b ML |
714 | else if (flags & SP_MODE_WRITE) |
715 | flags_local |= O_WRONLY; | |
74510d4b ML |
716 | |
717 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 718 | RETURN_FAIL("open() failed"); |
bccc7c9f | 719 | #endif |
9cb98459 | 720 | |
e33ab9aa ML |
721 | ret = get_config(port, &data, &config); |
722 | ||
eac329d2 | 723 | if (ret < 0) { |
e33ab9aa | 724 | sp_close(port); |
c33efc48 | 725 | RETURN_CODEVAL(ret); |
e33ab9aa | 726 | } |
9cb98459 | 727 | |
bccc7c9f ML |
728 | /* Set sane port settings. */ |
729 | #ifdef _WIN32 | |
730 | data.dcb.fBinary = TRUE; | |
731 | data.dcb.fDsrSensitivity = FALSE; | |
732 | data.dcb.fErrorChar = FALSE; | |
733 | data.dcb.fNull = FALSE; | |
34442106 | 734 | data.dcb.fAbortOnError = FALSE; |
bccc7c9f | 735 | #else |
b251be4b | 736 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
737 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
738 | #ifdef IUCLC | |
739 | data.term.c_iflag &= ~IUCLC; | |
740 | #endif | |
741 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
742 | #ifdef OLCUC | |
743 | data.term.c_oflag &= ~OLCUC; | |
744 | #endif | |
745 | #ifdef NLDLY | |
746 | data.term.c_oflag &= ~NLDLY; | |
747 | #endif | |
748 | #ifdef CRDLY | |
749 | data.term.c_oflag &= ~CRDLY; | |
750 | #endif | |
751 | #ifdef TABDLY | |
752 | data.term.c_oflag &= ~TABDLY; | |
753 | #endif | |
754 | #ifdef BSDLY | |
755 | data.term.c_oflag &= ~BSDLY; | |
756 | #endif | |
757 | #ifdef VTDLY | |
758 | data.term.c_oflag &= ~VTDLY; | |
759 | #endif | |
760 | #ifdef FFDLY | |
761 | data.term.c_oflag &= ~FFDLY; | |
762 | #endif | |
b251be4b | 763 | #ifdef OFILL |
9cb98459 ML |
764 | data.term.c_oflag &= ~OFILL; |
765 | #endif | |
c3e05092 | 766 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 767 | data.term.c_cc[VMIN] = 0; |
b251be4b | 768 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 769 | |
b251be4b ML |
770 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
771 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 772 | #endif |
9cb98459 | 773 | |
537942c9 | 774 | #ifdef _WIN32 |
1a2a1544 UH |
775 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
776 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
777 | #endif |
778 | ||
e33ab9aa ML |
779 | ret = set_config(port, &data, &config); |
780 | ||
eac329d2 | 781 | if (ret < 0) { |
e33ab9aa | 782 | sp_close(port); |
c33efc48 | 783 | RETURN_CODEVAL(ret); |
e33ab9aa | 784 | } |
74510d4b | 785 | |
c33efc48 | 786 | RETURN_OK(); |
74510d4b ML |
787 | } |
788 | ||
970f279a | 789 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 790 | { |
c33efc48 ML |
791 | TRACE("%p", port); |
792 | ||
dec10e31 | 793 | CHECK_OPEN_PORT(); |
74510d4b | 794 | |
7890cef6 | 795 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 796 | |
74510d4b ML |
797 | #ifdef _WIN32 |
798 | /* Returns non-zero upon success, 0 upon failure. */ | |
799 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 800 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 801 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
802 | |
803 | /* Close event handles for overlapped structures. */ | |
804 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
805 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
806 | CloseHandle(port->ovl.hEvent) == 0) \ | |
807 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
808 | } while (0) | |
809 | CLOSE_OVERLAPPED(read_ovl); | |
810 | CLOSE_OVERLAPPED(write_ovl); | |
811 | CLOSE_OVERLAPPED(wait_ovl); | |
812 | ||
39df7833 ML |
813 | if (port->write_buf) { |
814 | free(port->write_buf); | |
815 | port->write_buf = NULL; | |
816 | } | |
74510d4b ML |
817 | #else |
818 | /* Returns 0 upon success, -1 upon failure. */ | |
819 | if (close(port->fd) == -1) | |
c33efc48 | 820 | RETURN_FAIL("close() failed"); |
8f471c66 | 821 | port->fd = -1; |
74510d4b ML |
822 | #endif |
823 | ||
c33efc48 | 824 | RETURN_OK(); |
74510d4b ML |
825 | } |
826 | ||
970f279a | 827 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 828 | { |
00d8c56d | 829 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 830 | |
dec10e31 ML |
831 | CHECK_OPEN_PORT(); |
832 | ||
833 | if (buffers > SP_BUF_BOTH) | |
834 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 835 | |
0ba3e49b | 836 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 837 | |
7890cef6 ML |
838 | DEBUG_FMT("Flushing %s buffers on port %s", |
839 | buffer_names[buffers], port->name); | |
ea667be7 | 840 | |
74510d4b | 841 | #ifdef _WIN32 |
fd8fd11a ML |
842 | DWORD flags = 0; |
843 | if (buffers & SP_BUF_INPUT) | |
844 | flags |= PURGE_RXCLEAR; | |
845 | if (buffers & SP_BUF_OUTPUT) | |
846 | flags |= PURGE_TXCLEAR; | |
847 | ||
74510d4b | 848 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 849 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 850 | RETURN_FAIL("PurgeComm() failed"); |
47fcf8ec ML |
851 | |
852 | if (buffers & SP_BUF_INPUT) | |
853 | TRY(restart_wait(port)); | |
74510d4b | 854 | #else |
fd8fd11a | 855 | int flags = 0; |
ad749855 | 856 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 857 | flags = TCIOFLUSH; |
ad749855 | 858 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 859 | flags = TCIFLUSH; |
ad749855 | 860 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
861 | flags = TCOFLUSH; |
862 | ||
74510d4b | 863 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 864 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 865 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 866 | #endif |
c33efc48 | 867 | RETURN_OK(); |
74510d4b ML |
868 | } |
869 | ||
970f279a | 870 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 871 | { |
c33efc48 ML |
872 | TRACE("%p", port); |
873 | ||
dec10e31 | 874 | CHECK_OPEN_PORT(); |
69a3739c | 875 | |
7890cef6 | 876 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 877 | |
69a3739c ML |
878 | #ifdef _WIN32 |
879 | /* Returns non-zero upon success, 0 upon failure. */ | |
880 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 881 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 882 | RETURN_OK(); |
69a3739c | 883 | #else |
2c827b21 ML |
884 | int result; |
885 | while (1) { | |
abd31fd9 ML |
886 | #if defined(__ANDROID__) && (__ANDROID_API__ < 21) |
887 | /* Android only has tcdrain from platform 21 onwards. | |
888 | * On previous API versions, use the ioctl directly. */ | |
33fd8804 ML |
889 | int arg = 1; |
890 | result = ioctl(port->fd, TCSBRK, &arg); | |
891 | #else | |
2c827b21 | 892 | result = tcdrain(port->fd); |
33fd8804 | 893 | #endif |
2c827b21 ML |
894 | if (result < 0) { |
895 | if (errno == EINTR) { | |
896 | DEBUG("tcdrain() was interrupted"); | |
897 | continue; | |
898 | } else { | |
899 | RETURN_FAIL("tcdrain() failed"); | |
900 | } | |
901 | } else { | |
902 | RETURN_OK(); | |
903 | } | |
904 | } | |
69a3739c | 905 | #endif |
69a3739c ML |
906 | } |
907 | ||
62ed9f80 ML |
908 | #ifdef _WIN32 |
909 | static enum sp_return await_write_completion(struct sp_port *port) | |
910 | { | |
911 | TRACE("%p", port); | |
912 | DWORD bytes_written; | |
913 | BOOL result; | |
914 | ||
915 | /* Wait for previous non-blocking write to complete, if any. */ | |
916 | if (port->writing) { | |
917 | DEBUG("Waiting for previous write to complete"); | |
918 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
919 | port->writing = 0; | |
920 | if (!result) | |
921 | RETURN_FAIL("Previous write failed to complete"); | |
922 | DEBUG("Previous write completed"); | |
923 | } | |
924 | ||
925 | RETURN_OK(); | |
926 | } | |
927 | #endif | |
928 | ||
970f279a | 929 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
1b91c6ea | 930 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 931 | { |
1b91c6ea | 932 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
933 | |
934 | CHECK_OPEN_PORT(); | |
935 | ||
936 | if (!buf) | |
937 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
938 | ||
1b91c6ea | 939 | if (timeout_ms) |
7890cef6 | 940 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
1b91c6ea | 941 | count, port->name, timeout_ms); |
e3dcf906 | 942 | else |
7890cef6 ML |
943 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
944 | count, port->name); | |
e3dcf906 ML |
945 | |
946 | if (count == 0) | |
9caa2e86 | 947 | RETURN_INT(0); |
e3dcf906 ML |
948 | |
949 | #ifdef _WIN32 | |
950 | DWORD bytes_written = 0; | |
e3dcf906 | 951 | |
62ed9f80 | 952 | TRY(await_write_completion(port)); |
e3dcf906 ML |
953 | |
954 | /* Set timeout. */ | |
27a58c05 ML |
955 | if (port->timeouts.WriteTotalTimeoutConstant != timeout_ms) { |
956 | port->timeouts.WriteTotalTimeoutConstant = timeout_ms; | |
957 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
958 | RETURN_FAIL("SetCommTimeouts() failed"); | |
959 | } | |
e3dcf906 | 960 | |
b457865b ML |
961 | /* Reduce count if it exceeds the WriteFile limit. */ |
962 | if (count > WRITEFILE_MAX_SIZE) | |
963 | count = WRITEFILE_MAX_SIZE; | |
964 | ||
e3dcf906 | 965 | /* Start write. */ |
bbe566fe | 966 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl)) { |
e3dcf906 | 967 | DEBUG("Write completed immediately"); |
9caa2e86 | 968 | RETURN_INT(count); |
bbe566fe ML |
969 | } else if (GetLastError() == ERROR_IO_PENDING) { |
970 | DEBUG("Waiting for write to complete"); | |
aee7d691 UH |
971 | if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0) { |
972 | if (GetLastError() == ERROR_SEM_TIMEOUT) { | |
973 | DEBUG("Write timed out"); | |
974 | RETURN_INT(0); | |
975 | } else { | |
976 | RETURN_FAIL("GetOverlappedResult() failed"); | |
977 | } | |
978 | } | |
bbe566fe ML |
979 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
980 | RETURN_INT(bytes_written); | |
981 | } else { | |
982 | RETURN_FAIL("WriteFile() failed"); | |
e3dcf906 ML |
983 | } |
984 | #else | |
985 | size_t bytes_written = 0; | |
986 | unsigned char *ptr = (unsigned char *) buf; | |
32dbe2d2 | 987 | struct timeout timeout; |
76222ee5 | 988 | int started = 0; |
e3dcf906 ML |
989 | fd_set fds; |
990 | int result; | |
991 | ||
32dbe2d2 | 992 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 993 | |
772c5861 ML |
994 | FD_ZERO(&fds); |
995 | FD_SET(port->fd, &fds); | |
996 | ||
e3dcf906 | 997 | /* Loop until we have written the requested number of bytes. */ |
dc422c04 | 998 | while (bytes_written < count) { |
76222ee5 ML |
999 | /* |
1000 | * Check timeout only if we have run select() at least once, | |
1001 | * to avoid any issues if a short timeout is reached before | |
1002 | * select() is even run. | |
1003 | */ | |
32dbe2d2 ML |
1004 | if (started && timeout_check(&timeout)) |
1005 | break; | |
1006 | ||
1007 | result = select(port->fd + 1, NULL, &fds, NULL, timeout_timeval(&timeout)); | |
76222ee5 | 1008 | started = 1; |
63a17c64 ML |
1009 | if (result < 0) { |
1010 | if (errno == EINTR) { | |
1011 | DEBUG("select() call was interrupted, repeating"); | |
1012 | continue; | |
1013 | } else { | |
1014 | RETURN_FAIL("select() failed"); | |
1015 | } | |
1016 | } else if (result == 0) { | |
c3cee38c ML |
1017 | /* Timeout has expired. */ |
1018 | break; | |
e3dcf906 ML |
1019 | } |
1020 | ||
1021 | /* Do write. */ | |
1022 | result = write(port->fd, ptr, count - bytes_written); | |
1023 | ||
1024 | if (result < 0) { | |
1025 | if (errno == EAGAIN) | |
1026 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1027 | continue; | |
1028 | else | |
1029 | /* This is an actual failure. */ | |
1030 | RETURN_FAIL("write() failed"); | |
1031 | } | |
1032 | ||
1033 | bytes_written += result; | |
1034 | ptr += result; | |
1035 | } | |
1036 | ||
c3cee38c ML |
1037 | if (bytes_written < count) |
1038 | DEBUG("Write timed out"); | |
1039 | ||
9caa2e86 | 1040 | RETURN_INT(bytes_written); |
e3dcf906 ML |
1041 | #endif |
1042 | } | |
1043 | ||
970f279a AJ |
1044 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
1045 | const void *buf, size_t count) | |
74510d4b | 1046 | { |
c33efc48 ML |
1047 | TRACE("%p, %p, %d", port, buf, count); |
1048 | ||
dec10e31 | 1049 | CHECK_OPEN_PORT(); |
74510d4b ML |
1050 | |
1051 | if (!buf) | |
c33efc48 | 1052 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1053 | |
7890cef6 | 1054 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 1055 | |
a3cb91f5 | 1056 | if (count == 0) |
9caa2e86 | 1057 | RETURN_INT(0); |
a3cb91f5 | 1058 | |
74510d4b | 1059 | #ifdef _WIN32 |
39df7833 | 1060 | DWORD buf_bytes; |
f92f1f0c | 1061 | |
e3dcf906 ML |
1062 | /* Check whether previous write is complete. */ |
1063 | if (port->writing) { | |
1064 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
1065 | DEBUG("Previous write completed"); | |
1066 | port->writing = 0; | |
1067 | } else { | |
1068 | DEBUG("Previous write not complete"); | |
1069 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 1070 | RETURN_INT(0); |
a3cb91f5 | 1071 | } |
e3dcf906 | 1072 | } |
a3cb91f5 | 1073 | |
e3dcf906 | 1074 | /* Set timeout. */ |
27a58c05 ML |
1075 | if (port->timeouts.WriteTotalTimeoutConstant != 0) { |
1076 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
1077 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1078 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1079 | } | |
e3dcf906 | 1080 | |
b457865b ML |
1081 | /* Reduce count if it exceeds the WriteFile limit. */ |
1082 | if (count > WRITEFILE_MAX_SIZE) | |
1083 | count = WRITEFILE_MAX_SIZE; | |
1084 | ||
39df7833 ML |
1085 | /* Copy data to our write buffer. */ |
1086 | buf_bytes = min(port->write_buf_size, count); | |
1087 | memcpy(port->write_buf, buf, buf_bytes); | |
1088 | ||
1089 | /* Start asynchronous write. */ | |
1090 | if (WriteFile(port->hdl, port->write_buf, buf_bytes, NULL, &port->write_ovl) == 0) { | |
1091 | if (GetLastError() == ERROR_IO_PENDING) { | |
1092 | if ((port->writing = !HasOverlappedIoCompleted(&port->write_ovl))) | |
1093 | DEBUG("Asynchronous write completed immediately"); | |
1094 | else | |
1095 | DEBUG("Asynchronous write running"); | |
e3dcf906 | 1096 | } else { |
39df7833 ML |
1097 | /* Actual failure of some kind. */ |
1098 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 ML |
1099 | } |
1100 | } | |
1101 | ||
9af8cff3 | 1102 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1103 | |
39df7833 | 1104 | RETURN_INT(buf_bytes); |
74510d4b ML |
1105 | #else |
1106 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1107 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1108 | |
55ab7e0b ML |
1109 | if (written < 0) { |
1110 | if (errno == EAGAIN) | |
1111 | // Buffer is full, no bytes written. | |
1112 | RETURN_INT(0); | |
1113 | else | |
1114 | RETURN_FAIL("write() failed"); | |
1115 | } else { | |
9caa2e86 | 1116 | RETURN_INT(written); |
55ab7e0b | 1117 | } |
74510d4b ML |
1118 | #endif |
1119 | } | |
1120 | ||
94a314a8 ML |
1121 | #ifdef _WIN32 |
1122 | /* Restart wait operation if buffer was emptied. */ | |
1123 | static enum sp_return restart_wait_if_needed(struct sp_port *port, unsigned int bytes_read) | |
1124 | { | |
8ebfaf89 ML |
1125 | DWORD errors; |
1126 | COMSTAT comstat; | |
94a314a8 | 1127 | |
21ae5ce1 ML |
1128 | if (bytes_read == 0) |
1129 | RETURN_OK(); | |
1130 | ||
8ebfaf89 ML |
1131 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) |
1132 | RETURN_FAIL("ClearCommError() failed"); | |
94a314a8 | 1133 | |
8ebfaf89 | 1134 | if (comstat.cbInQue == 0) |
94a314a8 ML |
1135 | TRY(restart_wait(port)); |
1136 | ||
1137 | RETURN_OK(); | |
1138 | } | |
1139 | #endif | |
1140 | ||
970f279a | 1141 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
1b91c6ea | 1142 | size_t count, unsigned int timeout_ms) |
e3dcf906 | 1143 | { |
1b91c6ea | 1144 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); |
e3dcf906 ML |
1145 | |
1146 | CHECK_OPEN_PORT(); | |
1147 | ||
1148 | if (!buf) | |
1149 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1150 | ||
1b91c6ea | 1151 | if (timeout_ms) |
7890cef6 | 1152 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
1b91c6ea | 1153 | count, port->name, timeout_ms); |
e3dcf906 | 1154 | else |
7890cef6 ML |
1155 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
1156 | count, port->name); | |
e3dcf906 ML |
1157 | |
1158 | if (count == 0) | |
9caa2e86 | 1159 | RETURN_INT(0); |
e3dcf906 ML |
1160 | |
1161 | #ifdef _WIN32 | |
1162 | DWORD bytes_read = 0; | |
1163 | ||
1164 | /* Set timeout. */ | |
27a58c05 | 1165 | if (port->timeouts.ReadIntervalTimeout != 0 || |
0188a545 | 1166 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1167 | port->timeouts.ReadTotalTimeoutConstant != timeout_ms) { |
1168 | port->timeouts.ReadIntervalTimeout = 0; | |
0188a545 | 1169 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1170 | port->timeouts.ReadTotalTimeoutConstant = timeout_ms; |
1171 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1172 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1173 | } | |
e3dcf906 ML |
1174 | |
1175 | /* Start read. */ | |
bbe566fe | 1176 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl)) { |
e3dcf906 | 1177 | DEBUG("Read completed immediately"); |
6f1186aa | 1178 | bytes_read = count; |
bbe566fe ML |
1179 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1180 | DEBUG("Waiting for read to complete"); | |
27911925 ML |
1181 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1182 | RETURN_FAIL("GetOverlappedResult() failed"); | |
bbe566fe ML |
1183 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
1184 | } else { | |
1185 | RETURN_FAIL("ReadFile() failed"); | |
6f1186aa ML |
1186 | } |
1187 | ||
94a314a8 | 1188 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1189 | |
9caa2e86 | 1190 | RETURN_INT(bytes_read); |
6f1186aa | 1191 | |
e3dcf906 ML |
1192 | #else |
1193 | size_t bytes_read = 0; | |
9a7945af | 1194 | unsigned char *ptr = (unsigned char *) buf; |
32dbe2d2 | 1195 | struct timeout timeout; |
76222ee5 | 1196 | int started = 0; |
e3dcf906 ML |
1197 | fd_set fds; |
1198 | int result; | |
1199 | ||
32dbe2d2 | 1200 | timeout_start(&timeout, timeout_ms); |
e3dcf906 | 1201 | |
772c5861 ML |
1202 | FD_ZERO(&fds); |
1203 | FD_SET(port->fd, &fds); | |
1204 | ||
e3dcf906 | 1205 | /* Loop until we have the requested number of bytes. */ |
dc422c04 | 1206 | while (bytes_read < count) { |
76222ee5 ML |
1207 | /* |
1208 | * Check timeout only if we have run select() at least once, | |
1209 | * to avoid any issues if a short timeout is reached before | |
1210 | * select() is even run. | |
1211 | */ | |
32dbe2d2 ML |
1212 | if (started && timeout_check(&timeout)) |
1213 | /* Timeout has expired. */ | |
1214 | break; | |
1215 | ||
1216 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
76222ee5 | 1217 | started = 1; |
63a17c64 ML |
1218 | if (result < 0) { |
1219 | if (errno == EINTR) { | |
1220 | DEBUG("select() call was interrupted, repeating"); | |
1221 | continue; | |
1222 | } else { | |
1223 | RETURN_FAIL("select() failed"); | |
1224 | } | |
1225 | } else if (result == 0) { | |
c3cee38c ML |
1226 | /* Timeout has expired. */ |
1227 | break; | |
e3dcf906 ML |
1228 | } |
1229 | ||
1230 | /* Do read. */ | |
1231 | result = read(port->fd, ptr, count - bytes_read); | |
1232 | ||
1233 | if (result < 0) { | |
1234 | if (errno == EAGAIN) | |
76222ee5 ML |
1235 | /* |
1236 | * This shouldn't happen because we did a | |
1237 | * select() first, but handle anyway. | |
1238 | */ | |
e3dcf906 ML |
1239 | continue; |
1240 | else | |
1241 | /* This is an actual failure. */ | |
1242 | RETURN_FAIL("read() failed"); | |
1243 | } | |
1244 | ||
1245 | bytes_read += result; | |
1246 | ptr += result; | |
1247 | } | |
1248 | ||
c3cee38c ML |
1249 | if (bytes_read < count) |
1250 | DEBUG("Read timed out"); | |
1251 | ||
9caa2e86 | 1252 | RETURN_INT(bytes_read); |
e3dcf906 ML |
1253 | #endif |
1254 | } | |
1255 | ||
e5c2630e ML |
1256 | SP_API enum sp_return sp_blocking_read_next(struct sp_port *port, void *buf, |
1257 | size_t count, unsigned int timeout_ms) | |
1258 | { | |
1259 | TRACE("%p, %p, %d, %d", port, buf, count, timeout_ms); | |
1260 | ||
1261 | CHECK_OPEN_PORT(); | |
1262 | ||
1263 | if (!buf) | |
1264 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1265 | ||
1266 | if (count == 0) | |
1267 | RETURN_ERROR(SP_ERR_ARG, "Zero count"); | |
1268 | ||
1269 | if (timeout_ms) | |
1270 | DEBUG_FMT("Reading next max %d bytes from port %s, timeout %d ms", | |
1271 | count, port->name, timeout_ms); | |
1272 | else | |
1273 | DEBUG_FMT("Reading next max %d bytes from port %s, no timeout", | |
1274 | count, port->name); | |
1275 | ||
1276 | #ifdef _WIN32 | |
1277 | DWORD bytes_read = 0; | |
1278 | ||
1279 | /* If timeout_ms == 0, set maximum timeout. */ | |
1280 | DWORD timeout_val = (timeout_ms == 0 ? MAXDWORD - 1 : timeout_ms); | |
1281 | ||
1282 | /* Set timeout. */ | |
1283 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || | |
1284 | port->timeouts.ReadTotalTimeoutMultiplier != MAXDWORD || | |
1285 | port->timeouts.ReadTotalTimeoutConstant != timeout_val) { | |
1286 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1287 | port->timeouts.ReadTotalTimeoutMultiplier = MAXDWORD; | |
1288 | port->timeouts.ReadTotalTimeoutConstant = timeout_val; | |
1289 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1290 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1291 | } | |
1292 | ||
1293 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1294 | while (bytes_read == 0) { | |
1295 | /* Start read. */ | |
888fb45d | 1296 | if (ReadFile(port->hdl, buf, count, &bytes_read, &port->read_ovl)) { |
e5c2630e | 1297 | DEBUG("Read completed immediately"); |
e5c2630e ML |
1298 | } else if (GetLastError() == ERROR_IO_PENDING) { |
1299 | DEBUG("Waiting for read to complete"); | |
1300 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) | |
1301 | RETURN_FAIL("GetOverlappedResult() failed"); | |
1302 | if (bytes_read > 0) { | |
1303 | DEBUG("Read completed"); | |
1304 | } else if (timeout_ms > 0) { | |
1305 | DEBUG("Read timed out"); | |
1306 | break; | |
1307 | } else { | |
1308 | DEBUG("Restarting read"); | |
1309 | } | |
1310 | } else { | |
1311 | RETURN_FAIL("ReadFile() failed"); | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | TRY(restart_wait_if_needed(port, bytes_read)); | |
1316 | ||
1317 | RETURN_INT(bytes_read); | |
1318 | ||
1319 | #else | |
1320 | size_t bytes_read = 0; | |
32dbe2d2 | 1321 | struct timeout timeout; |
e5c2630e ML |
1322 | int started = 0; |
1323 | fd_set fds; | |
1324 | int result; | |
1325 | ||
32dbe2d2 | 1326 | timeout_start(&timeout, timeout_ms); |
e5c2630e ML |
1327 | |
1328 | FD_ZERO(&fds); | |
1329 | FD_SET(port->fd, &fds); | |
1330 | ||
1331 | /* Loop until we have at least one byte, or timeout is reached. */ | |
1332 | while (bytes_read == 0) { | |
1333 | /* | |
1334 | * Check timeout only if we have run select() at least once, | |
1335 | * to avoid any issues if a short timeout is reached before | |
1336 | * select() is even run. | |
1337 | */ | |
32dbe2d2 ML |
1338 | if (started && timeout_check(&timeout)) |
1339 | /* Timeout has expired. */ | |
1340 | break; | |
1341 | ||
1342 | result = select(port->fd + 1, &fds, NULL, NULL, timeout_timeval(&timeout)); | |
e5c2630e ML |
1343 | started = 1; |
1344 | if (result < 0) { | |
1345 | if (errno == EINTR) { | |
1346 | DEBUG("select() call was interrupted, repeating"); | |
1347 | continue; | |
1348 | } else { | |
1349 | RETURN_FAIL("select() failed"); | |
1350 | } | |
1351 | } else if (result == 0) { | |
1352 | /* Timeout has expired. */ | |
1353 | break; | |
1354 | } | |
1355 | ||
1356 | /* Do read. */ | |
1357 | result = read(port->fd, buf, count); | |
1358 | ||
1359 | if (result < 0) { | |
1360 | if (errno == EAGAIN) | |
1361 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1362 | continue; | |
1363 | else | |
1364 | /* This is an actual failure. */ | |
1365 | RETURN_FAIL("read() failed"); | |
1366 | } | |
1367 | ||
1368 | bytes_read = result; | |
1369 | } | |
1370 | ||
1371 | if (bytes_read == 0) | |
1372 | DEBUG("Read timed out"); | |
1373 | ||
1374 | RETURN_INT(bytes_read); | |
1375 | #endif | |
1376 | } | |
1377 | ||
970f279a AJ |
1378 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
1379 | size_t count) | |
74510d4b | 1380 | { |
c33efc48 ML |
1381 | TRACE("%p, %p, %d", port, buf, count); |
1382 | ||
dec10e31 | 1383 | CHECK_OPEN_PORT(); |
74510d4b ML |
1384 | |
1385 | if (!buf) | |
c33efc48 | 1386 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1387 | |
7890cef6 | 1388 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1389 | |
74510d4b | 1390 | #ifdef _WIN32 |
e3dcf906 | 1391 | DWORD bytes_read; |
f92f1f0c | 1392 | |
e3dcf906 | 1393 | /* Set timeout. */ |
27a58c05 | 1394 | if (port->timeouts.ReadIntervalTimeout != MAXDWORD || |
0188a545 | 1395 | port->timeouts.ReadTotalTimeoutMultiplier != 0 || |
27a58c05 ML |
1396 | port->timeouts.ReadTotalTimeoutConstant != 0) { |
1397 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
0188a545 | 1398 | port->timeouts.ReadTotalTimeoutMultiplier = 0; |
27a58c05 ML |
1399 | port->timeouts.ReadTotalTimeoutConstant = 0; |
1400 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1401 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1402 | } | |
e3dcf906 ML |
1403 | |
1404 | /* Do read. */ | |
1405 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
ae2c5825 ML |
1406 | if (GetLastError() != ERROR_IO_PENDING) |
1407 | RETURN_FAIL("ReadFile() failed"); | |
e3dcf906 ML |
1408 | |
1409 | /* Get number of bytes read. */ | |
ae2c5825 | 1410 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, FALSE) == 0) |
1622ef60 | 1411 | RETURN_FAIL("GetOverlappedResult() failed"); |
e3dcf906 | 1412 | |
94a314a8 | 1413 | TRY(restart_wait_if_needed(port, bytes_read)); |
6f1186aa | 1414 | |
9caa2e86 | 1415 | RETURN_INT(bytes_read); |
74510d4b ML |
1416 | #else |
1417 | ssize_t bytes_read; | |
f92f1f0c | 1418 | |
74510d4b | 1419 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1420 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1421 | if (errno == EAGAIN) |
1422 | /* No bytes available. */ | |
33d5ff47 ML |
1423 | bytes_read = 0; |
1424 | else | |
1425 | /* This is an actual failure. */ | |
1426 | RETURN_FAIL("read() failed"); | |
1427 | } | |
9caa2e86 | 1428 | RETURN_INT(bytes_read); |
74510d4b ML |
1429 | #endif |
1430 | } | |
1431 | ||
970f279a | 1432 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1433 | { |
1434 | TRACE("%p", port); | |
1435 | ||
1436 | CHECK_OPEN_PORT(); | |
1437 | ||
7890cef6 | 1438 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1439 | |
1440 | #ifdef _WIN32 | |
1441 | DWORD errors; | |
1442 | COMSTAT comstat; | |
1443 | ||
1444 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1445 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1446 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1447 | #else |
1448 | int bytes_waiting; | |
1449 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1450 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1451 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1452 | #endif |
1453 | } | |
1454 | ||
970f279a | 1455 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1456 | { |
1457 | TRACE("%p", port); | |
1458 | ||
1459 | CHECK_OPEN_PORT(); | |
1460 | ||
7890cef6 | 1461 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1462 | |
1463 | #ifdef _WIN32 | |
1464 | DWORD errors; | |
1465 | COMSTAT comstat; | |
1466 | ||
1467 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1468 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1469 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1470 | #else |
1471 | int bytes_waiting; | |
1472 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1473 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1474 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1475 | #endif |
1476 | } | |
1477 | ||
970f279a | 1478 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1479 | { |
1480 | struct sp_event_set *result; | |
1481 | ||
1482 | TRACE("%p", result_ptr); | |
1483 | ||
1484 | if (!result_ptr) | |
1485 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1486 | ||
1487 | *result_ptr = NULL; | |
1488 | ||
1489 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1490 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1491 | ||
1492 | memset(result, 0, sizeof(struct sp_event_set)); | |
1493 | ||
1494 | *result_ptr = result; | |
1495 | ||
1496 | RETURN_OK(); | |
1497 | } | |
1498 | ||
1499 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1500 | event_handle handle, enum sp_event mask) | |
1501 | { | |
1502 | void *new_handles; | |
1503 | enum sp_event *new_masks; | |
1504 | ||
1505 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1506 | ||
1507 | if (!(new_handles = realloc(event_set->handles, | |
1508 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1509 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa | 1510 | |
ac323d80 UH |
1511 | event_set->handles = new_handles; |
1512 | ||
6f1186aa | 1513 | if (!(new_masks = realloc(event_set->masks, |
ac323d80 | 1514 | sizeof(enum sp_event) * (event_set->count + 1)))) |
dc422c04 | 1515 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa | 1516 | |
6f1186aa ML |
1517 | event_set->masks = new_masks; |
1518 | ||
1519 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1520 | event_set->masks[event_set->count] = mask; | |
1521 | ||
1522 | event_set->count++; | |
1523 | ||
1524 | RETURN_OK(); | |
1525 | } | |
1526 | ||
970f279a | 1527 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1528 | const struct sp_port *port, enum sp_event mask) |
1529 | { | |
1530 | TRACE("%p, %p, %d", event_set, port, mask); | |
1531 | ||
1532 | if (!event_set) | |
1533 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1534 | ||
1535 | if (!port) | |
1536 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1537 | ||
1538 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1539 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1540 | ||
1541 | if (!mask) | |
1542 | RETURN_OK(); | |
1543 | ||
1544 | #ifdef _WIN32 | |
1545 | enum sp_event handle_mask; | |
1546 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1547 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1548 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1549 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1550 | #else | |
1551 | TRY(add_handle(event_set, port->fd, mask)); | |
1552 | #endif | |
1553 | ||
1554 | RETURN_OK(); | |
1555 | } | |
1556 | ||
970f279a | 1557 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1558 | { |
1559 | TRACE("%p", event_set); | |
1560 | ||
1561 | if (!event_set) { | |
1562 | DEBUG("Null event set"); | |
1563 | RETURN(); | |
1564 | } | |
1565 | ||
1566 | DEBUG("Freeing event set"); | |
1567 | ||
1568 | if (event_set->handles) | |
1569 | free(event_set->handles); | |
1570 | if (event_set->masks) | |
1571 | free(event_set->masks); | |
1572 | ||
1573 | free(event_set); | |
1574 | ||
1575 | RETURN(); | |
1576 | } | |
1577 | ||
970f279a | 1578 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1b91c6ea | 1579 | unsigned int timeout_ms) |
6f1186aa | 1580 | { |
1b91c6ea | 1581 | TRACE("%p, %d", event_set, timeout_ms); |
6f1186aa ML |
1582 | |
1583 | if (!event_set) | |
1584 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1585 | ||
1586 | #ifdef _WIN32 | |
1587 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1b91c6ea | 1588 | timeout_ms ? timeout_ms : INFINITE) == WAIT_FAILED) |
6f1186aa ML |
1589 | RETURN_FAIL("WaitForMultipleObjects() failed"); |
1590 | ||
1591 | RETURN_OK(); | |
1592 | #else | |
32dbe2d2 ML |
1593 | struct timeout timeout; |
1594 | int started = 0, result; | |
6f1186aa ML |
1595 | struct pollfd *pollfds; |
1596 | unsigned int i; | |
1597 | ||
1598 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1599 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1600 | ||
1601 | for (i = 0; i < event_set->count; i++) { | |
81243567 | 1602 | pollfds[i].fd = ((int *)event_set->handles)[i]; |
6f1186aa ML |
1603 | pollfds[i].events = 0; |
1604 | pollfds[i].revents = 0; | |
1605 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1606 | pollfds[i].events |= POLLIN; | |
1607 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1608 | pollfds[i].events |= POLLOUT; | |
1609 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1610 | pollfds[i].events |= POLLERR; | |
1611 | } | |
1612 | ||
32dbe2d2 | 1613 | timeout_start(&timeout, timeout_ms); |
08eb25f5 | 1614 | timeout_limit(&timeout, INT_MAX); |
6f1186aa ML |
1615 | |
1616 | /* Loop until an event occurs. */ | |
dc422c04 | 1617 | while (1) { |
76222ee5 ML |
1618 | /* |
1619 | * Check timeout only if we have run poll() at least once, | |
1620 | * to avoid any issues if a short timeout is reached before | |
1621 | * poll() is even run. | |
1622 | */ | |
32dbe2d2 ML |
1623 | if (started && timeout_check(&timeout)) { |
1624 | DEBUG("Wait timed out"); | |
1625 | break; | |
6f1186aa ML |
1626 | } |
1627 | ||
32dbe2d2 | 1628 | result = poll(pollfds, event_set->count, timeout_remaining_ms(&timeout)); |
76222ee5 | 1629 | started = 1; |
6f1186aa ML |
1630 | |
1631 | if (result < 0) { | |
1632 | if (errno == EINTR) { | |
1633 | DEBUG("poll() call was interrupted, repeating"); | |
1634 | continue; | |
1635 | } else { | |
1636 | free(pollfds); | |
1637 | RETURN_FAIL("poll() failed"); | |
1638 | } | |
1639 | } else if (result == 0) { | |
1640 | DEBUG("poll() timed out"); | |
32dbe2d2 | 1641 | if (!timeout.overflow) |
127d8d0c | 1642 | break; |
6f1186aa ML |
1643 | } else { |
1644 | DEBUG("poll() completed"); | |
1645 | break; | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | free(pollfds); | |
1650 | RETURN_OK(); | |
1651 | #endif | |
1652 | } | |
1653 | ||
5cea279a | 1654 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1655 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1656 | { | |
1657 | void *data; | |
1658 | ||
c33efc48 ML |
1659 | TRACE("%d, %p", fd, baudrate); |
1660 | ||
ea667be7 ML |
1661 | DEBUG("Getting baud rate"); |
1662 | ||
7a6d2196 | 1663 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1664 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1665 | |
8d43110a ML |
1666 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1667 | free(data); | |
dc422c04 | 1668 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1669 | } |
7a6d2196 ML |
1670 | |
1671 | *baudrate = get_termios_speed(data); | |
1672 | ||
8d43110a ML |
1673 | free(data); |
1674 | ||
c33efc48 | 1675 | RETURN_OK(); |
7a6d2196 ML |
1676 | } |
1677 | ||
1678 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1679 | { | |
1680 | void *data; | |
1681 | ||
c33efc48 ML |
1682 | TRACE("%d, %d", fd, baudrate); |
1683 | ||
ea667be7 ML |
1684 | DEBUG("Getting baud rate"); |
1685 | ||
7a6d2196 | 1686 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1687 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1688 | |
8d43110a ML |
1689 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1690 | free(data); | |
dc422c04 | 1691 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1692 | } |
7a6d2196 | 1693 | |
ea667be7 ML |
1694 | DEBUG("Setting baud rate"); |
1695 | ||
7a6d2196 ML |
1696 | set_termios_speed(data, baudrate); |
1697 | ||
8d43110a ML |
1698 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1699 | free(data); | |
dc422c04 | 1700 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1701 | } |
1702 | ||
1703 | free(data); | |
7a6d2196 | 1704 | |
c33efc48 | 1705 | RETURN_OK(); |
7a6d2196 | 1706 | } |
5cea279a | 1707 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1708 | |
1709 | #ifdef USE_TERMIOX | |
bd791fe1 | 1710 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1711 | { |
bd791fe1 | 1712 | void *termx; |
40978c2b | 1713 | |
bd791fe1 | 1714 | TRACE("%d, %p", fd, data); |
c33efc48 | 1715 | |
ea667be7 ML |
1716 | DEBUG("Getting advanced flow control"); |
1717 | ||
bd791fe1 | 1718 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1719 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1720 | |
bd791fe1 ML |
1721 | if (ioctl(fd, TCGETX, termx) < 0) { |
1722 | free(termx); | |
dc422c04 | 1723 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1724 | } |
40978c2b | 1725 | |
bd791fe1 ML |
1726 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1727 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1728 | |
bd791fe1 | 1729 | free(termx); |
8d43110a | 1730 | |
c33efc48 | 1731 | RETURN_OK(); |
40978c2b ML |
1732 | } |
1733 | ||
bd791fe1 | 1734 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1735 | { |
bd791fe1 | 1736 | void *termx; |
40978c2b | 1737 | |
bd791fe1 | 1738 | TRACE("%d, %p", fd, data); |
c33efc48 | 1739 | |
ea667be7 ML |
1740 | DEBUG("Getting advanced flow control"); |
1741 | ||
bd791fe1 | 1742 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1743 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1744 | |
bd791fe1 ML |
1745 | if (ioctl(fd, TCGETX, termx) < 0) { |
1746 | free(termx); | |
dc422c04 | 1747 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1748 | } |
40978c2b | 1749 | |
ea667be7 ML |
1750 | DEBUG("Setting advanced flow control"); |
1751 | ||
bd791fe1 ML |
1752 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1753 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1754 | |
bd791fe1 ML |
1755 | if (ioctl(fd, TCSETX, termx) < 0) { |
1756 | free(termx); | |
dc422c04 | 1757 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1758 | } |
1759 | ||
bd791fe1 | 1760 | free(termx); |
40978c2b | 1761 | |
c33efc48 | 1762 | RETURN_OK(); |
40978c2b ML |
1763 | } |
1764 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1765 | |
eb6ed20f ML |
1766 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1767 | struct sp_port_config *config) | |
8094e4a0 | 1768 | { |
da2748bf | 1769 | unsigned int i; |
cbf628c7 | 1770 | |
c33efc48 ML |
1771 | TRACE("%p, %p, %p", port, data, config); |
1772 | ||
7890cef6 | 1773 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1774 | |
8094e4a0 | 1775 | #ifdef _WIN32 |
e33ab9aa | 1776 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1777 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1778 | |
067417af | 1779 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1780 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1781 | config->baudrate = std_baudrates[i].value; |
1782 | break; | |
1783 | } | |
1784 | } | |
1785 | ||
1786 | if (i == NUM_STD_BAUDRATES) | |
1787 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1788 | config->baudrate = data->dcb.BaudRate; |
067417af | 1789 | |
e33ab9aa | 1790 | config->bits = data->dcb.ByteSize; |
067417af | 1791 | |
e33ab9aa ML |
1792 | if (data->dcb.fParity) |
1793 | switch (data->dcb.Parity) { | |
067417af ML |
1794 | case NOPARITY: |
1795 | config->parity = SP_PARITY_NONE; | |
1796 | break; | |
e432ce60 ML |
1797 | case ODDPARITY: |
1798 | config->parity = SP_PARITY_ODD; | |
1799 | break; | |
067417af ML |
1800 | case EVENPARITY: |
1801 | config->parity = SP_PARITY_EVEN; | |
1802 | break; | |
e432ce60 ML |
1803 | case MARKPARITY: |
1804 | config->parity = SP_PARITY_MARK; | |
1805 | break; | |
1806 | case SPACEPARITY: | |
1807 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1808 | break; |
1809 | default: | |
1810 | config->parity = -1; | |
1811 | } | |
1812 | else | |
1813 | config->parity = SP_PARITY_NONE; | |
1814 | ||
e33ab9aa | 1815 | switch (data->dcb.StopBits) { |
067417af ML |
1816 | case ONESTOPBIT: |
1817 | config->stopbits = 1; | |
1818 | break; | |
1819 | case TWOSTOPBITS: | |
1820 | config->stopbits = 2; | |
1821 | break; | |
1822 | default: | |
1823 | config->stopbits = -1; | |
1824 | } | |
1825 | ||
e33ab9aa | 1826 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1827 | case RTS_CONTROL_DISABLE: |
1828 | config->rts = SP_RTS_OFF; | |
1829 | break; | |
1830 | case RTS_CONTROL_ENABLE: | |
1831 | config->rts = SP_RTS_ON; | |
1832 | break; | |
1833 | case RTS_CONTROL_HANDSHAKE: | |
1834 | config->rts = SP_RTS_FLOW_CONTROL; | |
1835 | break; | |
1836 | default: | |
1837 | config->rts = -1; | |
067417af ML |
1838 | } |
1839 | ||
e33ab9aa | 1840 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1841 | |
e33ab9aa | 1842 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1843 | case DTR_CONTROL_DISABLE: |
1844 | config->dtr = SP_DTR_OFF; | |
1845 | break; | |
1846 | case DTR_CONTROL_ENABLE: | |
1847 | config->dtr = SP_DTR_ON; | |
1848 | break; | |
1849 | case DTR_CONTROL_HANDSHAKE: | |
1850 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1851 | break; | |
1852 | default: | |
1853 | config->dtr = -1; | |
067417af ML |
1854 | } |
1855 | ||
e33ab9aa ML |
1856 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1857 | ||
c6754b45 ML |
1858 | if (data->dcb.fInX) { |
1859 | if (data->dcb.fOutX) | |
1860 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1861 | else | |
1862 | config->xon_xoff = SP_XONXOFF_IN; | |
1863 | } else { | |
1864 | if (data->dcb.fOutX) | |
1865 | config->xon_xoff = SP_XONXOFF_OUT; | |
1866 | else | |
1867 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1868 | } | |
1869 | ||
e33ab9aa ML |
1870 | #else // !_WIN32 |
1871 | ||
1872 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1873 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1874 | |
1875 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1876 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1877 | |
1878 | #ifdef USE_TERMIOX | |
bd791fe1 | 1879 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1880 | |
1881 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1882 | data->termiox_supported = 0; | |
1883 | else if (ret < 0) | |
c33efc48 | 1884 | RETURN_CODEVAL(ret); |
68ec29db ML |
1885 | else |
1886 | data->termiox_supported = 1; | |
1887 | #else | |
1888 | data->termiox_supported = 0; | |
40978c2b ML |
1889 | #endif |
1890 | ||
067417af | 1891 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1892 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1893 | config->baudrate = std_baudrates[i].value; |
1894 | break; | |
1895 | } | |
1896 | } | |
1897 | ||
31b3a8f5 MH |
1898 | if (i == NUM_STD_BAUDRATES) { |
1899 | #ifdef __APPLE__ | |
1900 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1901 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1902 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1903 | #else |
067417af | 1904 | config->baudrate = -1; |
31b3a8f5 MH |
1905 | #endif |
1906 | } | |
067417af | 1907 | |
e33ab9aa | 1908 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1909 | case CS8: |
1910 | config->bits = 8; | |
1911 | break; | |
1912 | case CS7: | |
1913 | config->bits = 7; | |
1914 | break; | |
1915 | case CS6: | |
1916 | config->bits = 6; | |
1917 | break; | |
1918 | case CS5: | |
1919 | config->bits = 5; | |
1920 | break; | |
1921 | default: | |
1922 | config->bits = -1; | |
1923 | } | |
1924 | ||
e33ab9aa | 1925 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1926 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1927 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1928 | config->parity = -1; |
c3e05092 | 1929 | #ifdef CMSPAR |
e432ce60 ML |
1930 | else if (data->term.c_cflag & CMSPAR) |
1931 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1932 | #endif |
067417af | 1933 | else |
e33ab9aa | 1934 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1935 | |
e33ab9aa | 1936 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1937 | |
e33ab9aa | 1938 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1939 | config->rts = SP_RTS_FLOW_CONTROL; |
1940 | config->cts = SP_CTS_FLOW_CONTROL; | |
1941 | } else { | |
bd791fe1 | 1942 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1943 | config->rts = SP_RTS_FLOW_CONTROL; |
1944 | else | |
1945 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1946 | ||
bd791fe1 | 1947 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1948 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1949 | } |
1950 | ||
bd791fe1 | 1951 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1952 | config->dtr = SP_DTR_FLOW_CONTROL; |
1953 | else | |
1954 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1955 | ||
bd791fe1 | 1956 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1957 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1958 | |
e29b93a5 ML |
1959 | if (data->term.c_iflag & IXOFF) { |
1960 | if (data->term.c_iflag & IXON) | |
1961 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1962 | else | |
1963 | config->xon_xoff = SP_XONXOFF_IN; | |
1964 | } else { | |
1965 | if (data->term.c_iflag & IXON) | |
1966 | config->xon_xoff = SP_XONXOFF_OUT; | |
1967 | else | |
1968 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1969 | } | |
067417af ML |
1970 | #endif |
1971 | ||
c33efc48 | 1972 | RETURN_OK(); |
067417af ML |
1973 | } |
1974 | ||
7a6d2196 | 1975 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1976 | const struct sp_port_config *config) |
18fc2dd1 | 1977 | { |
e33ab9aa | 1978 | unsigned int i; |
31b3a8f5 MH |
1979 | #ifdef __APPLE__ |
1980 | BAUD_TYPE baud_nonstd; | |
1981 | ||
1982 | baud_nonstd = B0; | |
1983 | #endif | |
5cea279a | 1984 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1985 | int baud_nonstd = 0; |
1986 | #endif | |
18fc2dd1 | 1987 | |
c33efc48 ML |
1988 | TRACE("%p, %p, %p", port, data, config); |
1989 | ||
7890cef6 | 1990 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1991 | |
e33ab9aa | 1992 | #ifdef _WIN32 |
6bd6a8b5 ML |
1993 | |
1994 | TRY(await_write_completion(port)); | |
1995 | ||
eac329d2 | 1996 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1997 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1998 | if (config->baudrate == std_baudrates[i].value) { | |
1999 | data->dcb.BaudRate = std_baudrates[i].index; | |
2000 | break; | |
2001 | } | |
2002 | } | |
18fc2dd1 | 2003 | |
e33ab9aa ML |
2004 | if (i == NUM_STD_BAUDRATES) |
2005 | data->dcb.BaudRate = config->baudrate; | |
39df7833 ML |
2006 | |
2007 | /* Allocate write buffer for 50ms of data at baud rate. */ | |
2008 | port->write_buf_size = max(config->baudrate / (8 * 20), 1); | |
2009 | port->write_buf = realloc(port->write_buf, | |
2010 | port->write_buf_size); | |
2011 | ||
2012 | if (!port->write_buf) | |
2013 | RETURN_ERROR(SP_ERR_MEM, "Allocating write buffer failed"); | |
e33ab9aa | 2014 | } |
18fc2dd1 | 2015 | |
e33ab9aa ML |
2016 | if (config->bits >= 0) |
2017 | data->dcb.ByteSize = config->bits; | |
2018 | ||
2019 | if (config->parity >= 0) { | |
2020 | switch (config->parity) { | |
e33ab9aa ML |
2021 | case SP_PARITY_NONE: |
2022 | data->dcb.Parity = NOPARITY; | |
2023 | break; | |
e432ce60 ML |
2024 | case SP_PARITY_ODD: |
2025 | data->dcb.Parity = ODDPARITY; | |
2026 | break; | |
e33ab9aa ML |
2027 | case SP_PARITY_EVEN: |
2028 | data->dcb.Parity = EVENPARITY; | |
2029 | break; | |
e432ce60 ML |
2030 | case SP_PARITY_MARK: |
2031 | data->dcb.Parity = MARKPARITY; | |
2032 | break; | |
2033 | case SP_PARITY_SPACE: | |
2034 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
2035 | break; |
2036 | default: | |
c33efc48 | 2037 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 2038 | } |
18fc2dd1 ML |
2039 | } |
2040 | ||
e33ab9aa ML |
2041 | if (config->stopbits >= 0) { |
2042 | switch (config->stopbits) { | |
2043 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
2044 | case 1: | |
2045 | data->dcb.StopBits = ONESTOPBIT; | |
2046 | break; | |
2047 | case 2: | |
2048 | data->dcb.StopBits = TWOSTOPBITS; | |
2049 | break; | |
2050 | default: | |
c33efc48 | 2051 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
2052 | } |
2053 | } | |
2054 | ||
2055 | if (config->rts >= 0) { | |
2056 | switch (config->rts) { | |
2057 | case SP_RTS_OFF: | |
2058 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
2059 | break; | |
2060 | case SP_RTS_ON: | |
2061 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
2062 | break; | |
2063 | case SP_RTS_FLOW_CONTROL: | |
2064 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
2065 | break; | |
2066 | default: | |
c33efc48 | 2067 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
2068 | } |
2069 | } | |
2070 | ||
2071 | if (config->cts >= 0) { | |
2072 | switch (config->cts) { | |
2073 | case SP_CTS_IGNORE: | |
2074 | data->dcb.fOutxCtsFlow = FALSE; | |
2075 | break; | |
2076 | case SP_CTS_FLOW_CONTROL: | |
2077 | data->dcb.fOutxCtsFlow = TRUE; | |
2078 | break; | |
2079 | default: | |
c33efc48 | 2080 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
2081 | } |
2082 | } | |
2083 | ||
2084 | if (config->dtr >= 0) { | |
2085 | switch (config->dtr) { | |
2086 | case SP_DTR_OFF: | |
2087 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
2088 | break; | |
2089 | case SP_DTR_ON: | |
2090 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
2091 | break; | |
2092 | case SP_DTR_FLOW_CONTROL: | |
2093 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
2094 | break; | |
2095 | default: | |
c33efc48 | 2096 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
2097 | } |
2098 | } | |
2099 | ||
2100 | if (config->dsr >= 0) { | |
2101 | switch (config->dsr) { | |
2102 | case SP_DSR_IGNORE: | |
2103 | data->dcb.fOutxDsrFlow = FALSE; | |
2104 | break; | |
2105 | case SP_DSR_FLOW_CONTROL: | |
2106 | data->dcb.fOutxDsrFlow = TRUE; | |
2107 | break; | |
2108 | default: | |
c33efc48 | 2109 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 2110 | } |
18fc2dd1 ML |
2111 | } |
2112 | ||
e33ab9aa ML |
2113 | if (config->xon_xoff >= 0) { |
2114 | switch (config->xon_xoff) { | |
2115 | case SP_XONXOFF_DISABLED: | |
2116 | data->dcb.fInX = FALSE; | |
2117 | data->dcb.fOutX = FALSE; | |
2118 | break; | |
2119 | case SP_XONXOFF_IN: | |
2120 | data->dcb.fInX = TRUE; | |
2121 | data->dcb.fOutX = FALSE; | |
2122 | break; | |
2123 | case SP_XONXOFF_OUT: | |
2124 | data->dcb.fInX = FALSE; | |
2125 | data->dcb.fOutX = TRUE; | |
2126 | break; | |
2127 | case SP_XONXOFF_INOUT: | |
2128 | data->dcb.fInX = TRUE; | |
2129 | data->dcb.fOutX = TRUE; | |
2130 | break; | |
2131 | default: | |
c33efc48 | 2132 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2133 | } |
2134 | } | |
2135 | ||
2136 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 2137 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 2138 | |
31b3a8f5 | 2139 | #else /* !_WIN32 */ |
e33ab9aa | 2140 | |
7a6d2196 ML |
2141 | int controlbits; |
2142 | ||
eac329d2 | 2143 | if (config->baudrate >= 0) { |
e33ab9aa ML |
2144 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
2145 | if (config->baudrate == std_baudrates[i].value) { | |
2146 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2147 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
2148 | |
2149 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 2150 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
2151 | break; |
2152 | } | |
2153 | } | |
2154 | ||
31b3a8f5 MH |
2155 | /* Non-standard baud rate */ |
2156 | if (i == NUM_STD_BAUDRATES) { | |
2157 | #ifdef __APPLE__ | |
24abdb68 | 2158 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 2159 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 2160 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2161 | baud_nonstd = config->baudrate; |
5cea279a | 2162 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 2163 | baud_nonstd = 1; |
31b3a8f5 | 2164 | #else |
c33efc48 | 2165 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
2166 | #endif |
2167 | } | |
e33ab9aa ML |
2168 | } |
2169 | ||
2170 | if (config->bits >= 0) { | |
2171 | data->term.c_cflag &= ~CSIZE; | |
2172 | switch (config->bits) { | |
2173 | case 8: | |
2174 | data->term.c_cflag |= CS8; | |
2175 | break; | |
2176 | case 7: | |
2177 | data->term.c_cflag |= CS7; | |
2178 | break; | |
2179 | case 6: | |
2180 | data->term.c_cflag |= CS6; | |
2181 | break; | |
23922313 UH |
2182 | case 5: |
2183 | data->term.c_cflag |= CS5; | |
2184 | break; | |
e33ab9aa | 2185 | default: |
c33efc48 | 2186 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
2187 | } |
2188 | } | |
2189 | ||
2190 | if (config->parity >= 0) { | |
2191 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
2192 | data->term.c_cflag &= ~(PARENB | PARODD); |
2193 | #ifdef CMSPAR | |
2194 | data->term.c_cflag &= ~CMSPAR; | |
2195 | #endif | |
e33ab9aa ML |
2196 | switch (config->parity) { |
2197 | case SP_PARITY_NONE: | |
2198 | data->term.c_iflag |= IGNPAR; | |
2199 | break; | |
2200 | case SP_PARITY_EVEN: | |
2201 | data->term.c_cflag |= PARENB; | |
2202 | break; | |
2203 | case SP_PARITY_ODD: | |
2204 | data->term.c_cflag |= PARENB | PARODD; | |
2205 | break; | |
afb518f0 | 2206 | #ifdef CMSPAR |
e432ce60 | 2207 | case SP_PARITY_MARK: |
c3e05092 | 2208 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2209 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2210 | break; |
2211 | case SP_PARITY_SPACE: | |
c3e05092 | 2212 | data->term.c_cflag |= PARENB; |
c3e05092 | 2213 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2214 | break; |
afb518f0 ML |
2215 | #else |
2216 | case SP_PARITY_MARK: | |
2217 | case SP_PARITY_SPACE: | |
2218 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2219 | #endif | |
e33ab9aa | 2220 | default: |
c33efc48 | 2221 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2222 | } |
2223 | } | |
2224 | ||
2225 | if (config->stopbits >= 0) { | |
2226 | data->term.c_cflag &= ~CSTOPB; | |
2227 | switch (config->stopbits) { | |
2228 | case 1: | |
2229 | data->term.c_cflag &= ~CSTOPB; | |
2230 | break; | |
2231 | case 2: | |
2232 | data->term.c_cflag |= CSTOPB; | |
2233 | break; | |
2234 | default: | |
c33efc48 | 2235 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2236 | } |
2237 | } | |
2238 | ||
eac329d2 | 2239 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2240 | if (data->termiox_supported) { |
bd791fe1 | 2241 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2242 | switch (config->rts) { |
2243 | case SP_RTS_OFF: | |
2244 | case SP_RTS_ON: | |
2245 | controlbits = TIOCM_RTS; | |
2246 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2247 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2248 | break; |
2249 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2250 | data->rts_flow = 1; |
68ec29db ML |
2251 | break; |
2252 | default: | |
2253 | break; | |
e33ab9aa | 2254 | } |
68ec29db | 2255 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2256 | data->cts_flow = 1; |
e33ab9aa | 2257 | |
bd791fe1 | 2258 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2259 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2260 | else |
2261 | data->term.c_iflag &= ~CRTSCTS; | |
2262 | } else { | |
2263 | /* Asymmetric use of RTS/CTS not supported. */ | |
2264 | if (data->term.c_iflag & CRTSCTS) { | |
2265 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2266 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2267 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2268 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2269 | } |
2270 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2271 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2272 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2273 | } |
e33ab9aa | 2274 | } else { |
68ec29db ML |
2275 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2276 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2277 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2278 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2279 | } |
2280 | ||
2281 | if (config->rts >= 0) { | |
2282 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2283 | data->term.c_iflag |= CRTSCTS; | |
2284 | } else { | |
2285 | controlbits = TIOCM_RTS; | |
2286 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2287 | &controlbits) < 0) | |
c33efc48 | 2288 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2289 | } |
e33ab9aa ML |
2290 | } |
2291 | } | |
2292 | } | |
2293 | ||
eac329d2 | 2294 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2295 | if (data->termiox_supported) { |
bd791fe1 | 2296 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2297 | switch (config->dtr) { |
2298 | case SP_DTR_OFF: | |
2299 | case SP_DTR_ON: | |
2300 | controlbits = TIOCM_DTR; | |
2301 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2302 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2303 | break; |
2304 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2305 | data->dtr_flow = 1; |
68ec29db ML |
2306 | break; |
2307 | default: | |
2308 | break; | |
2309 | } | |
2310 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2311 | data->dsr_flow = 1; |
68ec29db ML |
2312 | } else { |
2313 | /* DTR/DSR flow control not supported. */ | |
2314 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2315 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2316 | |
68ec29db ML |
2317 | if (config->dtr >= 0) { |
2318 | controlbits = TIOCM_DTR; | |
2319 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2320 | &controlbits) < 0) | |
c33efc48 | 2321 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2322 | } |
e33ab9aa ML |
2323 | } |
2324 | } | |
2325 | ||
2326 | if (config->xon_xoff >= 0) { | |
2327 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2328 | switch (config->xon_xoff) { | |
2329 | case SP_XONXOFF_DISABLED: | |
2330 | break; | |
2331 | case SP_XONXOFF_IN: | |
2332 | data->term.c_iflag |= IXOFF; | |
2333 | break; | |
2334 | case SP_XONXOFF_OUT: | |
2335 | data->term.c_iflag |= IXON | IXANY; | |
2336 | break; | |
2337 | case SP_XONXOFF_INOUT: | |
2338 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2339 | break; | |
2340 | default: | |
c33efc48 | 2341 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2342 | } |
2343 | } | |
2344 | ||
3f5c06d0 | 2345 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2346 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2347 | |
2348 | #ifdef __APPLE__ | |
2349 | if (baud_nonstd != B0) { | |
2350 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2351 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
2352 | /* |
2353 | * Set baud rates in data->term to correct, but incompatible | |
2354 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
2355 | */ | |
31b3a8f5 | 2356 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 2357 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2358 | } |
7a6d2196 | 2359 | #elif defined(__linux__) |
5cea279a | 2360 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2361 | if (baud_nonstd) |
2362 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2363 | #endif |
40978c2b | 2364 | #ifdef USE_TERMIOX |
68ec29db | 2365 | if (data->termiox_supported) |
bd791fe1 | 2366 | TRY(set_flow(port->fd, data)); |
40978c2b | 2367 | #endif |
7a6d2196 | 2368 | #endif |
31b3a8f5 MH |
2369 | |
2370 | #endif /* !_WIN32 */ | |
e33ab9aa | 2371 | |
c33efc48 | 2372 | RETURN_OK(); |
e33ab9aa ML |
2373 | } |
2374 | ||
970f279a | 2375 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 2376 | { |
59131d60 | 2377 | struct sp_port_config *config; |
9b1502ef | 2378 | |
00d8c56d UH |
2379 | TRACE("%p", config_ptr); |
2380 | ||
9b1502ef ML |
2381 | if (!config_ptr) |
2382 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2383 | ||
59131d60 ML |
2384 | *config_ptr = NULL; |
2385 | ||
2386 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2387 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2388 | |
59131d60 ML |
2389 | config->baudrate = -1; |
2390 | config->bits = -1; | |
2391 | config->parity = -1; | |
2392 | config->stopbits = -1; | |
2393 | config->rts = -1; | |
2394 | config->cts = -1; | |
2395 | config->dtr = -1; | |
2396 | config->dsr = -1; | |
2397 | ||
2398 | *config_ptr = config; | |
2399 | ||
9b1502ef ML |
2400 | RETURN_OK(); |
2401 | } | |
2402 | ||
970f279a | 2403 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2404 | { |
2405 | TRACE("%p", config); | |
2406 | ||
2407 | if (!config) | |
2408 | DEBUG("Null config"); | |
2409 | else | |
2410 | free(config); | |
2411 | ||
2412 | RETURN(); | |
2413 | } | |
2414 | ||
970f279a AJ |
2415 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2416 | struct sp_port_config *config) | |
70cd37de ML |
2417 | { |
2418 | struct port_data data; | |
2419 | ||
2420 | TRACE("%p, %p", port, config); | |
2421 | ||
2422 | CHECK_OPEN_PORT(); | |
2423 | ||
2424 | if (!config) | |
9b1502ef | 2425 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2426 | |
2427 | TRY(get_config(port, &data, config)); | |
2428 | ||
2429 | RETURN_OK(); | |
2430 | } | |
2431 | ||
970f279a AJ |
2432 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2433 | const struct sp_port_config *config) | |
e33ab9aa | 2434 | { |
8f189c4c | 2435 | struct port_data data; |
e33ab9aa ML |
2436 | struct sp_port_config prev_config; |
2437 | ||
c33efc48 ML |
2438 | TRACE("%p, %p", port, config); |
2439 | ||
dec10e31 | 2440 | CHECK_OPEN_PORT(); |
823690ae ML |
2441 | |
2442 | if (!config) | |
c33efc48 | 2443 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2444 | |
e33ab9aa ML |
2445 | TRY(get_config(port, &data, &prev_config)); |
2446 | TRY(set_config(port, &data, config)); | |
74510d4b | 2447 | |
c33efc48 | 2448 | RETURN_OK(); |
74510d4b ML |
2449 | } |
2450 | ||
9b1502ef | 2451 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2452 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2453 | struct port_data data; \ |
e33ab9aa | 2454 | struct sp_port_config config; \ |
c33efc48 | 2455 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2456 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2457 | TRY(get_config(port, &data, &config)); \ |
2458 | config.x = x; \ | |
2459 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2460 | RETURN_OK(); \ |
9b1502ef | 2461 | } \ |
970f279a AJ |
2462 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2463 | type *x) { \ | |
00d8c56d | 2464 | TRACE("%p, %p", config, x); \ |
6aad5bdd UH |
2465 | if (!x) \ |
2466 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \ | |
9b1502ef ML |
2467 | if (!config) \ |
2468 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2469 | *x = config->x; \ | |
2470 | RETURN_OK(); \ | |
2471 | } \ | |
970f279a AJ |
2472 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2473 | type x) { \ | |
9b1502ef ML |
2474 | TRACE("%p, %d", config, x); \ |
2475 | if (!config) \ | |
2476 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2477 | config->x = x; \ | |
2478 | RETURN_OK(); \ | |
9069c2fb ML |
2479 | } |
2480 | ||
9b1502ef ML |
2481 | CREATE_ACCESSORS(baudrate, int) |
2482 | CREATE_ACCESSORS(bits, int) | |
2483 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2484 | CREATE_ACCESSORS(stopbits, int) | |
2485 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2486 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2487 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2488 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2489 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2490 | ||
970f279a AJ |
2491 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2492 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2493 | { |
9b1502ef ML |
2494 | if (!config) |
2495 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2496 | |
2497 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2498 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2499 | |
e33ab9aa | 2500 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2501 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2502 | else |
9b1502ef | 2503 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2504 | |
2505 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2506 | config->rts = SP_RTS_FLOW_CONTROL; |
2507 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2508 | } else { |
9b1502ef ML |
2509 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2510 | config->rts = SP_RTS_ON; | |
2511 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2512 | } |
2513 | ||
2514 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2515 | config->dtr = SP_DTR_FLOW_CONTROL; |
2516 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2517 | } else { |
9b1502ef ML |
2518 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2519 | config->dtr = SP_DTR_ON; | |
2520 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2521 | } |
2522 | ||
9b1502ef ML |
2523 | RETURN_OK(); |
2524 | } | |
2525 | ||
970f279a AJ |
2526 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2527 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2528 | { |
2529 | struct port_data data; | |
2530 | struct sp_port_config config; | |
2531 | ||
2532 | TRACE("%p, %d", port, flowcontrol); | |
2533 | ||
2534 | CHECK_OPEN_PORT(); | |
2535 | ||
2536 | TRY(get_config(port, &data, &config)); | |
2537 | ||
2538 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2539 | ||
e33ab9aa ML |
2540 | TRY(set_config(port, &data, &config)); |
2541 | ||
c33efc48 | 2542 | RETURN_OK(); |
e33ab9aa ML |
2543 | } |
2544 | ||
970f279a AJ |
2545 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2546 | enum sp_signal *signals) | |
8cf7c697 | 2547 | { |
c33efc48 ML |
2548 | TRACE("%p, %p", port, signals); |
2549 | ||
dec10e31 | 2550 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2551 | |
2552 | if (!signals) | |
c33efc48 | 2553 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2554 | |
7890cef6 | 2555 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2556 | |
8cf7c697 ML |
2557 | *signals = 0; |
2558 | #ifdef _WIN32 | |
2559 | DWORD bits; | |
2560 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2561 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2562 | if (bits & MS_CTS_ON) |
2563 | *signals |= SP_SIG_CTS; | |
2564 | if (bits & MS_DSR_ON) | |
2565 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2566 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2567 | *signals |= SP_SIG_DCD; |
2568 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2569 | *signals |= SP_SIG_RI; |
2570 | #else | |
2571 | int bits; | |
2572 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2573 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2574 | if (bits & TIOCM_CTS) |
2575 | *signals |= SP_SIG_CTS; | |
2576 | if (bits & TIOCM_DSR) | |
2577 | *signals |= SP_SIG_DSR; | |
2578 | if (bits & TIOCM_CAR) | |
2579 | *signals |= SP_SIG_DCD; | |
2580 | if (bits & TIOCM_RNG) | |
2581 | *signals |= SP_SIG_RI; | |
2582 | #endif | |
c33efc48 | 2583 | RETURN_OK(); |
8cf7c697 ML |
2584 | } |
2585 | ||
970f279a | 2586 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2587 | { |
c33efc48 ML |
2588 | TRACE("%p", port); |
2589 | ||
dec10e31 | 2590 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2591 | #ifdef _WIN32 |
2592 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2593 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2594 | #else |
2595 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2596 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2597 | #endif |
2598 | ||
c33efc48 | 2599 | RETURN_OK(); |
90cc3ee6 ML |
2600 | } |
2601 | ||
970f279a | 2602 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2603 | { |
c33efc48 ML |
2604 | TRACE("%p", port); |
2605 | ||
dec10e31 | 2606 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2607 | #ifdef _WIN32 |
2608 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2609 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2610 | #else |
2611 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2612 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2613 | #endif |
2614 | ||
c33efc48 | 2615 | RETURN_OK(); |
90cc3ee6 ML |
2616 | } |
2617 | ||
970f279a | 2618 | SP_API int sp_last_error_code(void) |
74510d4b | 2619 | { |
7890cef6 | 2620 | TRACE_VOID(); |
74510d4b | 2621 | #ifdef _WIN32 |
9caa2e86 | 2622 | RETURN_INT(GetLastError()); |
74510d4b | 2623 | #else |
9caa2e86 | 2624 | RETURN_INT(errno); |
74510d4b ML |
2625 | #endif |
2626 | } | |
2627 | ||
970f279a | 2628 | SP_API char *sp_last_error_message(void) |
74510d4b | 2629 | { |
7890cef6 | 2630 | TRACE_VOID(); |
c33efc48 | 2631 | |
74510d4b | 2632 | #ifdef _WIN32 |
9a0c4bbd | 2633 | TCHAR *message; |
74510d4b ML |
2634 | DWORD error = GetLastError(); |
2635 | ||
9a0c4bbd | 2636 | DWORD length = FormatMessage( |
74510d4b ML |
2637 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
2638 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2639 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2640 | NULL, | |
2641 | error, | |
2642 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2643 | (LPTSTR) &message, | |
2644 | 0, NULL ); | |
2645 | ||
9a0c4bbd ML |
2646 | if (length >= 2 && message[length - 2] == '\r') |
2647 | message[length - 2] = '\0'; | |
2648 | ||
9caa2e86 | 2649 | RETURN_STRING(message); |
74510d4b | 2650 | #else |
9caa2e86 | 2651 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2652 | #endif |
2653 | } | |
2654 | ||
970f279a | 2655 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2656 | { |
c33efc48 ML |
2657 | TRACE("%s", message); |
2658 | ||
74510d4b ML |
2659 | #ifdef _WIN32 |
2660 | LocalFree(message); | |
64eec30d ML |
2661 | #else |
2662 | (void)message; | |
74510d4b | 2663 | #endif |
c33efc48 ML |
2664 | |
2665 | RETURN(); | |
74510d4b | 2666 | } |
863b35e6 | 2667 | |
970f279a | 2668 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2669 | { |
c33efc48 ML |
2670 | TRACE("%p", handler); |
2671 | ||
863b35e6 | 2672 | sp_debug_handler = handler; |
c33efc48 ML |
2673 | |
2674 | RETURN(); | |
863b35e6 ML |
2675 | } |
2676 | ||
970f279a | 2677 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2678 | { |
2679 | va_list args; | |
2680 | va_start(args, format); | |
2681 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2682 | fputs("sp: ", stderr); |
863b35e6 ML |
2683 | vfprintf(stderr, format, args); |
2684 | } | |
2685 | va_end(args); | |
2686 | } | |
524b0e14 | 2687 | |
970f279a | 2688 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2689 | { |
2690 | return SP_PACKAGE_VERSION_MAJOR; | |
2691 | } | |
2692 | ||
970f279a | 2693 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2694 | { |
2695 | return SP_PACKAGE_VERSION_MINOR; | |
2696 | } | |
2697 | ||
970f279a | 2698 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2699 | { |
2700 | return SP_PACKAGE_VERSION_MICRO; | |
2701 | } | |
2702 | ||
970f279a | 2703 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2704 | { |
2705 | return SP_PACKAGE_VERSION_STRING; | |
2706 | } | |
2707 | ||
970f279a | 2708 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2709 | { |
2710 | return SP_LIB_VERSION_CURRENT; | |
2711 | } | |
2712 | ||
970f279a | 2713 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2714 | { |
2715 | return SP_LIB_VERSION_REVISION; | |
2716 | } | |
2717 | ||
970f279a | 2718 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2719 | { |
2720 | return SP_LIB_VERSION_AGE; | |
2721 | } | |
2722 | ||
970f279a | 2723 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2724 | { |
2725 | return SP_LIB_VERSION_STRING; | |
2726 | } | |
2727 | ||
2728 | /** @} */ |