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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> | |
5 | * Copyright (C) 2010-2012 Uwe Hermann <uwe@hermann-uwe.de> | |
6 | * Copyright (C) 2013 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 | ||
f6a1fb65 | 24 | #include "libserialport.h" |
e33dcf90 | 25 | #include "libserialport_internal.h" |
da2748bf ML |
26 | |
27 | const struct std_baudrate std_baudrates[] = { | |
28 | #ifdef _WIN32 | |
29 | /* | |
30 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
31 | * have documented CBR_* macros. | |
32 | */ | |
33 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
34 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 35 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 36 | #else |
eac329d2 UH |
37 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
38 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
39 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
40 | BAUD(230400), | |
da2748bf | 41 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 42 | BAUD(460800), |
da2748bf ML |
43 | #endif |
44 | #endif | |
45 | }; | |
46 | ||
863b35e6 ML |
47 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
48 | ||
eb6ed20f ML |
49 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
50 | struct sp_port_config *config); | |
e33dcf90 | 51 | |
eb6ed20f ML |
52 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
53 | const struct sp_port_config *config); | |
80186526 | 54 | |
970f279a | 55 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
56 | { |
57 | struct sp_port *port; | |
5a8810e2 | 58 | #ifndef NO_PORT_METADATA |
a93fb468 | 59 | enum sp_return ret; |
5a8810e2 | 60 | #endif |
5919c913 | 61 | int len; |
d54e9004 | 62 | |
c33efc48 ML |
63 | TRACE("%s, %p", portname, port_ptr); |
64 | ||
32b5ac05 | 65 | if (!port_ptr) |
c33efc48 | 66 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 67 | |
77f262c4 ML |
68 | *port_ptr = NULL; |
69 | ||
d4babed2 | 70 | if (!portname) |
c33efc48 | 71 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 72 | |
7890cef6 | 73 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 74 | |
d54e9004 | 75 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 76 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 77 | |
5919c913 ML |
78 | len = strlen(portname) + 1; |
79 | ||
eac329d2 | 80 | if (!(port->name = malloc(len))) { |
d54e9004 | 81 | free(port); |
c33efc48 | 82 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
83 | } |
84 | ||
85 | memcpy(port->name, portname, len); | |
86 | ||
8f471c66 ML |
87 | #ifdef _WIN32 |
88 | port->hdl = INVALID_HANDLE_VALUE; | |
89 | #else | |
90 | port->fd = -1; | |
91 | #endif | |
92 | ||
e33dcf90 ML |
93 | port->description = NULL; |
94 | port->transport = SP_TRANSPORT_NATIVE; | |
95 | port->usb_bus = -1; | |
96 | port->usb_address = -1; | |
97 | port->usb_vid = -1; | |
98 | port->usb_pid = -1; | |
99 | port->usb_manufacturer = NULL; | |
100 | port->usb_product = NULL; | |
101 | port->usb_serial = NULL; | |
102 | port->bluetooth_address = NULL; | |
103 | ||
e4ce975a | 104 | #ifndef NO_PORT_METADATA |
e33dcf90 | 105 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
106 | sp_free_port(port); |
107 | return ret; | |
108 | } | |
e4ce975a | 109 | #endif |
a93fb468 | 110 | |
77f262c4 ML |
111 | *port_ptr = port; |
112 | ||
c33efc48 | 113 | RETURN_OK(); |
d54e9004 ML |
114 | } |
115 | ||
970f279a | 116 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
117 | { |
118 | TRACE("%p", port); | |
119 | ||
120 | if (!port) | |
121 | return NULL; | |
122 | ||
9caa2e86 | 123 | RETURN_STRING(port->name); |
1c5aae9d ML |
124 | } |
125 | ||
970f279a | 126 | SP_API char *sp_get_port_description(struct sp_port *port) |
a93fb468 AJ |
127 | { |
128 | TRACE("%p", port); | |
129 | ||
130 | if (!port || !port->description) | |
131 | return NULL; | |
132 | ||
9caa2e86 | 133 | RETURN_STRING(port->description); |
a93fb468 AJ |
134 | } |
135 | ||
970f279a | 136 | SP_API enum sp_transport sp_get_port_transport(struct sp_port *port) |
a93fb468 AJ |
137 | { |
138 | TRACE("%p", port); | |
139 | ||
140 | if (!port) | |
141 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
142 | ||
9caa2e86 | 143 | RETURN_INT(port->transport); |
a93fb468 AJ |
144 | } |
145 | ||
970f279a AJ |
146 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
147 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
148 | { |
149 | TRACE("%p", port); | |
150 | ||
151 | if (!port) | |
152 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
153 | if (port->transport != SP_TRANSPORT_USB) | |
154 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
155 | if (port->usb_bus < 0 || port->usb_address < 0) |
156 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 AJ |
157 | |
158 | if (usb_bus) *usb_bus = port->usb_bus; | |
159 | if (usb_address) *usb_address = port->usb_address; | |
160 | ||
161 | RETURN_OK(); | |
162 | } | |
163 | ||
970f279a AJ |
164 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
165 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
166 | { |
167 | TRACE("%p", port); | |
168 | ||
169 | if (!port) | |
170 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
171 | if (port->transport != SP_TRANSPORT_USB) | |
172 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
173 | if (port->usb_vid < 0 || port->usb_pid < 0) |
174 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 AJ |
175 | |
176 | if (usb_vid) *usb_vid = port->usb_vid; | |
177 | if (usb_pid) *usb_pid = port->usb_pid; | |
178 | ||
179 | RETURN_OK(); | |
180 | } | |
181 | ||
970f279a | 182 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
183 | { |
184 | TRACE("%p", port); | |
185 | ||
186 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
187 | return NULL; | |
188 | ||
9caa2e86 | 189 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
190 | } |
191 | ||
970f279a | 192 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
193 | { |
194 | TRACE("%p", port); | |
195 | ||
196 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
197 | return NULL; | |
198 | ||
9caa2e86 | 199 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
200 | } |
201 | ||
970f279a | 202 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
203 | { |
204 | TRACE("%p", port); | |
205 | ||
206 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
207 | return NULL; | |
208 | ||
9caa2e86 | 209 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
210 | } |
211 | ||
970f279a | 212 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
213 | { |
214 | TRACE("%p", port); | |
215 | ||
216 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
217 | || !port->bluetooth_address) | |
218 | return NULL; | |
219 | ||
9caa2e86 | 220 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
221 | } |
222 | ||
970f279a AJ |
223 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
224 | void *result_ptr) | |
3c126654 | 225 | { |
00d8c56d | 226 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
227 | |
228 | if (!port) | |
229 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
230 | ||
231 | #ifdef _WIN32 | |
232 | HANDLE *handle_ptr = result_ptr; | |
233 | *handle_ptr = port->hdl; | |
234 | #else | |
235 | int *fd_ptr = result_ptr; | |
236 | *fd_ptr = port->fd; | |
237 | #endif | |
238 | ||
239 | RETURN_OK(); | |
240 | } | |
241 | ||
970f279a AJ |
242 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
243 | struct sp_port **copy_ptr) | |
32b5ac05 | 244 | { |
c33efc48 ML |
245 | TRACE("%p, %p", port, copy_ptr); |
246 | ||
32b5ac05 | 247 | if (!copy_ptr) |
c33efc48 | 248 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
249 | |
250 | *copy_ptr = NULL; | |
251 | ||
c33efc48 ML |
252 | if (!port) |
253 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
254 | ||
255 | if (!port->name) | |
256 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 257 | |
ea667be7 ML |
258 | DEBUG("Copying port structure"); |
259 | ||
9caa2e86 | 260 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
261 | } |
262 | ||
970f279a | 263 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 264 | { |
c33efc48 ML |
265 | TRACE("%p", port); |
266 | ||
00d8c56d | 267 | if (!port) { |
c33efc48 ML |
268 | DEBUG("Null port"); |
269 | RETURN(); | |
270 | } | |
e3b2f7a4 | 271 | |
ea667be7 ML |
272 | DEBUG("Freeing port structure"); |
273 | ||
e3b2f7a4 ML |
274 | if (port->name) |
275 | free(port->name); | |
a93fb468 AJ |
276 | if (port->description) |
277 | free(port->description); | |
278 | if (port->usb_manufacturer) | |
279 | free(port->usb_manufacturer); | |
280 | if (port->usb_product) | |
281 | free(port->usb_product); | |
282 | if (port->usb_serial) | |
283 | free(port->usb_serial); | |
284 | if (port->bluetooth_address) | |
285 | free(port->bluetooth_address); | |
286 | #ifdef _WIN32 | |
287 | if (port->usb_path) | |
288 | free(port->usb_path); | |
289 | #endif | |
e3b2f7a4 ML |
290 | |
291 | free(port); | |
c33efc48 ML |
292 | |
293 | RETURN(); | |
e3b2f7a4 ML |
294 | } |
295 | ||
970f279a AJ |
296 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
297 | const char *portname) | |
3b63f34d ML |
298 | { |
299 | void *tmp; | |
300 | unsigned int count; | |
f92f1f0c | 301 | |
3b63f34d | 302 | for (count = 0; list[count]; count++); |
d54e9004 | 303 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
304 | goto fail; |
305 | list = tmp; | |
77f262c4 | 306 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 307 | goto fail; |
db2794ce | 308 | list[count + 1] = NULL; |
3b63f34d | 309 | return list; |
f92f1f0c | 310 | |
3b63f34d ML |
311 | fail: |
312 | sp_free_port_list(list); | |
313 | return NULL; | |
314 | } | |
315 | ||
970f279a | 316 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 317 | { |
d54e9004 | 318 | struct sp_port **list; |
48a4076f | 319 | int ret; |
24c1a4bb | 320 | |
c33efc48 ML |
321 | TRACE("%p", list_ptr); |
322 | ||
dec10e31 ML |
323 | if (!list_ptr) |
324 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
325 | ||
ea667be7 ML |
326 | DEBUG("Enumerating ports"); |
327 | ||
d54e9004 | 328 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 329 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
330 | |
331 | list[0] = NULL; | |
3b63f34d | 332 | |
e4ce975a ML |
333 | #ifdef NO_ENUMERATION |
334 | ret = SP_ERR_SUPP; | |
335 | #else | |
48a4076f | 336 | ret = list_ports(&list); |
e4ce975a | 337 | #endif |
77f262c4 | 338 | |
6b93ede4 ML |
339 | switch (ret) { |
340 | case SP_OK: | |
77f262c4 | 341 | *list_ptr = list; |
c33efc48 | 342 | RETURN_OK(); |
6b93ede4 | 343 | case SP_ERR_SUPP: |
9af8cff3 | 344 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); |
6b93ede4 | 345 | default: |
77f262c4 ML |
346 | if (list) |
347 | sp_free_port_list(list); | |
77f262c4 | 348 | *list_ptr = NULL; |
c33efc48 | 349 | return ret; |
77f262c4 | 350 | } |
3b63f34d ML |
351 | } |
352 | ||
970f279a | 353 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
354 | { |
355 | unsigned int i; | |
f92f1f0c | 356 | |
c33efc48 ML |
357 | TRACE("%p", list); |
358 | ||
dec10e31 ML |
359 | if (!list) { |
360 | DEBUG("Null list"); | |
361 | RETURN(); | |
362 | } | |
363 | ||
ea667be7 ML |
364 | DEBUG("Freeing port list"); |
365 | ||
3b63f34d | 366 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 367 | sp_free_port(list[i]); |
3b63f34d | 368 | free(list); |
c33efc48 ML |
369 | |
370 | RETURN(); | |
3b63f34d ML |
371 | } |
372 | ||
c33efc48 ML |
373 | #define CHECK_PORT() do { \ |
374 | if (port == NULL) \ | |
375 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
dec10e31 ML |
376 | if (port->name == NULL) \ |
377 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ | |
378 | } while (0) | |
379 | #ifdef _WIN32 | |
380 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
381 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
382 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 383 | } while (0) |
74510d4b | 384 | #else |
dec10e31 | 385 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
386 | if (port->fd < 0) \ |
387 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 388 | } while (0) |
74510d4b | 389 | #endif |
dec10e31 ML |
390 | #define CHECK_OPEN_PORT() do { \ |
391 | CHECK_PORT(); \ | |
392 | CHECK_PORT_HANDLE(); \ | |
393 | } while (0) | |
74510d4b | 394 | |
970f279a | 395 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 396 | { |
bccc7c9f ML |
397 | struct port_data data; |
398 | struct sp_port_config config; | |
399 | enum sp_return ret; | |
400 | ||
00d8c56d | 401 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 402 | |
dec10e31 ML |
403 | CHECK_PORT(); |
404 | ||
276ef1b9 | 405 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 406 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 407 | |
7890cef6 | 408 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 409 | |
74510d4b | 410 | #ifdef _WIN32 |
537942c9 | 411 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 412 | char *escaped_port_name; |
537942c9 | 413 | COMSTAT status; |
99945a1f ML |
414 | |
415 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 416 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 417 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
418 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
419 | ||
74510d4b | 420 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 421 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
422 | if (flags & SP_MODE_READ) |
423 | desired_access |= GENERIC_READ; | |
424 | if (flags & SP_MODE_WRITE) | |
74510d4b | 425 | desired_access |= GENERIC_WRITE; |
74510d4b | 426 | |
99945a1f | 427 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 428 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
429 | |
430 | free(escaped_port_name); | |
431 | ||
74510d4b | 432 | if (port->hdl == INVALID_HANDLE_VALUE) |
e3dcf906 ML |
433 | RETURN_FAIL("port CreateFile() failed"); |
434 | ||
435 | /* All timeouts initially disabled. */ | |
436 | port->timeouts.ReadIntervalTimeout = 0; | |
437 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
438 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
439 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
440 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 441 | |
e3dcf906 | 442 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
443 | sp_close(port); |
444 | RETURN_FAIL("SetCommTimeouts() failed"); | |
445 | } | |
e3dcf906 ML |
446 | |
447 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
448 | #define INIT_OVERLAPPED(ovl) do { \ |
449 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
450 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
451 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
452 | == INVALID_HANDLE_VALUE) { \ | |
453 | sp_close(port); \ | |
454 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
455 | } \ | |
456 | } while (0) | |
457 | ||
458 | INIT_OVERLAPPED(read_ovl); | |
459 | INIT_OVERLAPPED(write_ovl); | |
460 | INIT_OVERLAPPED(wait_ovl); | |
461 | ||
462 | /* Set event mask for RX and error events. */ | |
463 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 464 | sp_close(port); |
6f1186aa | 465 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 466 | } |
6f1186aa ML |
467 | |
468 | /* Start background operation for RX and error events. */ | |
469 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
470 | if (GetLastError() != ERROR_IO_PENDING) { | |
471 | sp_close(port); | |
472 | RETURN_FAIL("WaitCommEvent() failed"); | |
473 | } | |
e3dcf906 ML |
474 | } |
475 | ||
476 | port->writing = FALSE; | |
477 | ||
74510d4b | 478 | #else |
e3dcf906 | 479 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 480 | |
74510d4b | 481 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 482 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 483 | flags_local |= O_RDWR; |
a036341b | 484 | else if (flags & SP_MODE_READ) |
74510d4b | 485 | flags_local |= O_RDONLY; |
a036341b ML |
486 | else if (flags & SP_MODE_WRITE) |
487 | flags_local |= O_WRONLY; | |
74510d4b ML |
488 | |
489 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 490 | RETURN_FAIL("open() failed"); |
bccc7c9f | 491 | #endif |
9cb98459 | 492 | |
e33ab9aa ML |
493 | ret = get_config(port, &data, &config); |
494 | ||
eac329d2 | 495 | if (ret < 0) { |
e33ab9aa | 496 | sp_close(port); |
c33efc48 | 497 | RETURN_CODEVAL(ret); |
e33ab9aa | 498 | } |
9cb98459 | 499 | |
bccc7c9f ML |
500 | /* Set sane port settings. */ |
501 | #ifdef _WIN32 | |
502 | data.dcb.fBinary = TRUE; | |
503 | data.dcb.fDsrSensitivity = FALSE; | |
504 | data.dcb.fErrorChar = FALSE; | |
505 | data.dcb.fNull = FALSE; | |
506 | data.dcb.fAbortOnError = TRUE; | |
507 | #else | |
b251be4b | 508 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
509 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
510 | #ifdef IUCLC | |
511 | data.term.c_iflag &= ~IUCLC; | |
512 | #endif | |
513 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
514 | #ifdef OLCUC | |
515 | data.term.c_oflag &= ~OLCUC; | |
516 | #endif | |
517 | #ifdef NLDLY | |
518 | data.term.c_oflag &= ~NLDLY; | |
519 | #endif | |
520 | #ifdef CRDLY | |
521 | data.term.c_oflag &= ~CRDLY; | |
522 | #endif | |
523 | #ifdef TABDLY | |
524 | data.term.c_oflag &= ~TABDLY; | |
525 | #endif | |
526 | #ifdef BSDLY | |
527 | data.term.c_oflag &= ~BSDLY; | |
528 | #endif | |
529 | #ifdef VTDLY | |
530 | data.term.c_oflag &= ~VTDLY; | |
531 | #endif | |
532 | #ifdef FFDLY | |
533 | data.term.c_oflag &= ~FFDLY; | |
534 | #endif | |
b251be4b | 535 | #ifdef OFILL |
9cb98459 ML |
536 | data.term.c_oflag &= ~OFILL; |
537 | #endif | |
c3e05092 | 538 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 539 | data.term.c_cc[VMIN] = 0; |
b251be4b | 540 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 541 | |
b251be4b ML |
542 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
543 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 544 | #endif |
9cb98459 | 545 | |
537942c9 | 546 | #ifdef _WIN32 |
1a2a1544 UH |
547 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
548 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
549 | #endif |
550 | ||
e33ab9aa ML |
551 | ret = set_config(port, &data, &config); |
552 | ||
eac329d2 | 553 | if (ret < 0) { |
e33ab9aa | 554 | sp_close(port); |
c33efc48 | 555 | RETURN_CODEVAL(ret); |
e33ab9aa | 556 | } |
74510d4b | 557 | |
c33efc48 | 558 | RETURN_OK(); |
74510d4b ML |
559 | } |
560 | ||
970f279a | 561 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 562 | { |
c33efc48 ML |
563 | TRACE("%p", port); |
564 | ||
dec10e31 | 565 | CHECK_OPEN_PORT(); |
74510d4b | 566 | |
7890cef6 | 567 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 568 | |
74510d4b ML |
569 | #ifdef _WIN32 |
570 | /* Returns non-zero upon success, 0 upon failure. */ | |
571 | if (CloseHandle(port->hdl) == 0) | |
e3dcf906 | 572 | RETURN_FAIL("port CloseHandle() failed"); |
8f471c66 | 573 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
574 | |
575 | /* Close event handles for overlapped structures. */ | |
576 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
577 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
578 | CloseHandle(port->ovl.hEvent) == 0) \ | |
579 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
580 | } while (0) | |
581 | CLOSE_OVERLAPPED(read_ovl); | |
582 | CLOSE_OVERLAPPED(write_ovl); | |
583 | CLOSE_OVERLAPPED(wait_ovl); | |
584 | ||
74510d4b ML |
585 | #else |
586 | /* Returns 0 upon success, -1 upon failure. */ | |
587 | if (close(port->fd) == -1) | |
c33efc48 | 588 | RETURN_FAIL("close() failed"); |
8f471c66 | 589 | port->fd = -1; |
74510d4b ML |
590 | #endif |
591 | ||
c33efc48 | 592 | RETURN_OK(); |
74510d4b ML |
593 | } |
594 | ||
970f279a | 595 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 596 | { |
00d8c56d | 597 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 598 | |
dec10e31 ML |
599 | CHECK_OPEN_PORT(); |
600 | ||
601 | if (buffers > SP_BUF_BOTH) | |
602 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 603 | |
0ba3e49b | 604 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 605 | |
7890cef6 ML |
606 | DEBUG_FMT("Flushing %s buffers on port %s", |
607 | buffer_names[buffers], port->name); | |
ea667be7 | 608 | |
74510d4b | 609 | #ifdef _WIN32 |
fd8fd11a ML |
610 | DWORD flags = 0; |
611 | if (buffers & SP_BUF_INPUT) | |
612 | flags |= PURGE_RXCLEAR; | |
613 | if (buffers & SP_BUF_OUTPUT) | |
614 | flags |= PURGE_TXCLEAR; | |
615 | ||
74510d4b | 616 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 617 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 618 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 619 | #else |
fd8fd11a ML |
620 | int flags = 0; |
621 | if (buffers & SP_BUF_BOTH) | |
622 | flags = TCIOFLUSH; | |
623 | else if (buffers & SP_BUF_INPUT) | |
624 | flags = TCIFLUSH; | |
82f424e6 | 625 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
626 | flags = TCOFLUSH; |
627 | ||
74510d4b | 628 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 629 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 630 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 631 | #endif |
c33efc48 | 632 | RETURN_OK(); |
74510d4b ML |
633 | } |
634 | ||
970f279a | 635 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 636 | { |
c33efc48 ML |
637 | TRACE("%p", port); |
638 | ||
dec10e31 | 639 | CHECK_OPEN_PORT(); |
69a3739c | 640 | |
7890cef6 | 641 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 642 | |
69a3739c ML |
643 | #ifdef _WIN32 |
644 | /* Returns non-zero upon success, 0 upon failure. */ | |
645 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 646 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 647 | RETURN_OK(); |
69a3739c | 648 | #else |
2c827b21 ML |
649 | int result; |
650 | while (1) { | |
33fd8804 ML |
651 | #ifdef __ANDROID__ |
652 | int arg = 1; | |
653 | result = ioctl(port->fd, TCSBRK, &arg); | |
654 | #else | |
2c827b21 | 655 | result = tcdrain(port->fd); |
33fd8804 | 656 | #endif |
2c827b21 ML |
657 | if (result < 0) { |
658 | if (errno == EINTR) { | |
659 | DEBUG("tcdrain() was interrupted"); | |
660 | continue; | |
661 | } else { | |
662 | RETURN_FAIL("tcdrain() failed"); | |
663 | } | |
664 | } else { | |
665 | RETURN_OK(); | |
666 | } | |
667 | } | |
69a3739c | 668 | #endif |
69a3739c ML |
669 | } |
670 | ||
970f279a AJ |
671 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
672 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
673 | { |
674 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
675 | ||
676 | CHECK_OPEN_PORT(); | |
677 | ||
678 | if (!buf) | |
679 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
680 | ||
681 | if (timeout) | |
7890cef6 ML |
682 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
683 | count, port->name, timeout); | |
e3dcf906 | 684 | else |
7890cef6 ML |
685 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
686 | count, port->name); | |
e3dcf906 ML |
687 | |
688 | if (count == 0) | |
9caa2e86 | 689 | RETURN_INT(0); |
e3dcf906 ML |
690 | |
691 | #ifdef _WIN32 | |
692 | DWORD bytes_written = 0; | |
693 | BOOL result; | |
694 | ||
695 | /* Wait for previous non-blocking write to complete, if any. */ | |
696 | if (port->writing) { | |
697 | DEBUG("Waiting for previous write to complete"); | |
698 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
699 | port->writing = 0; | |
700 | if (!result) | |
701 | RETURN_FAIL("Previous write failed to complete"); | |
702 | DEBUG("Previous write completed"); | |
703 | } | |
704 | ||
705 | /* Set timeout. */ | |
706 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
707 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
708 | RETURN_FAIL("SetCommTimeouts() failed"); | |
709 | ||
710 | /* Start write. */ | |
711 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
712 | if (GetLastError() == ERROR_IO_PENDING) { | |
713 | DEBUG("Waiting for write to complete"); | |
714 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
7890cef6 | 715 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
9caa2e86 | 716 | RETURN_INT(bytes_written); |
e3dcf906 ML |
717 | } else { |
718 | RETURN_FAIL("WriteFile() failed"); | |
719 | } | |
720 | } else { | |
721 | DEBUG("Write completed immediately"); | |
9caa2e86 | 722 | RETURN_INT(count); |
e3dcf906 ML |
723 | } |
724 | #else | |
725 | size_t bytes_written = 0; | |
726 | unsigned char *ptr = (unsigned char *) buf; | |
727 | struct timeval start, delta, now, end = {0, 0}; | |
728 | fd_set fds; | |
729 | int result; | |
730 | ||
731 | if (timeout) { | |
732 | /* Get time at start of operation. */ | |
733 | gettimeofday(&start, NULL); | |
734 | /* Define duration of timeout. */ | |
735 | delta.tv_sec = timeout / 1000; | |
1b342042 | 736 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
737 | /* Calculate time at which we should give up. */ |
738 | timeradd(&start, &delta, &end); | |
739 | } | |
740 | ||
741 | /* Loop until we have written the requested number of bytes. */ | |
742 | while (bytes_written < count) | |
743 | { | |
744 | /* Wait until space is available. */ | |
745 | FD_ZERO(&fds); | |
746 | FD_SET(port->fd, &fds); | |
747 | if (timeout) { | |
748 | gettimeofday(&now, NULL); | |
749 | if (timercmp(&now, &end, >)) { | |
750 | DEBUG("write timed out"); | |
9caa2e86 | 751 | RETURN_INT(bytes_written); |
e3dcf906 ML |
752 | } |
753 | timersub(&end, &now, &delta); | |
754 | } | |
755 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
756 | if (result < 0) { |
757 | if (errno == EINTR) { | |
758 | DEBUG("select() call was interrupted, repeating"); | |
759 | continue; | |
760 | } else { | |
761 | RETURN_FAIL("select() failed"); | |
762 | } | |
763 | } else if (result == 0) { | |
e3dcf906 | 764 | DEBUG("write timed out"); |
9caa2e86 | 765 | RETURN_INT(bytes_written); |
e3dcf906 ML |
766 | } |
767 | ||
768 | /* Do write. */ | |
769 | result = write(port->fd, ptr, count - bytes_written); | |
770 | ||
771 | if (result < 0) { | |
772 | if (errno == EAGAIN) | |
773 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
774 | continue; | |
775 | else | |
776 | /* This is an actual failure. */ | |
777 | RETURN_FAIL("write() failed"); | |
778 | } | |
779 | ||
780 | bytes_written += result; | |
781 | ptr += result; | |
782 | } | |
783 | ||
9caa2e86 | 784 | RETURN_INT(bytes_written); |
e3dcf906 ML |
785 | #endif |
786 | } | |
787 | ||
970f279a AJ |
788 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
789 | const void *buf, size_t count) | |
74510d4b | 790 | { |
c33efc48 ML |
791 | TRACE("%p, %p, %d", port, buf, count); |
792 | ||
dec10e31 | 793 | CHECK_OPEN_PORT(); |
74510d4b ML |
794 | |
795 | if (!buf) | |
c33efc48 | 796 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 797 | |
7890cef6 | 798 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 799 | |
a3cb91f5 | 800 | if (count == 0) |
9caa2e86 | 801 | RETURN_INT(0); |
a3cb91f5 | 802 | |
74510d4b ML |
803 | #ifdef _WIN32 |
804 | DWORD written = 0; | |
0765af56 | 805 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 806 | |
e3dcf906 ML |
807 | /* Check whether previous write is complete. */ |
808 | if (port->writing) { | |
809 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
810 | DEBUG("Previous write completed"); | |
811 | port->writing = 0; | |
812 | } else { | |
813 | DEBUG("Previous write not complete"); | |
814 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 815 | RETURN_INT(0); |
a3cb91f5 | 816 | } |
e3dcf906 | 817 | } |
a3cb91f5 | 818 | |
e3dcf906 ML |
819 | /* Set timeout. */ |
820 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
821 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
822 | RETURN_FAIL("SetCommTimeouts() failed"); | |
823 | ||
824 | /* Keep writing data until the OS has to actually start an async IO for it. | |
825 | * At that point we know the buffer is full. */ | |
826 | while (written < count) | |
827 | { | |
828 | /* Copy first byte of user buffer. */ | |
829 | port->pending_byte = *ptr++; | |
830 | ||
831 | /* Start asynchronous write. */ | |
832 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
833 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
834 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
835 | DEBUG("Asynchronous write completed immediately"); | |
836 | port->writing = 0; | |
837 | written++; | |
838 | continue; | |
839 | } else { | |
840 | DEBUG("Asynchronous write running"); | |
841 | port->writing = 1; | |
9caa2e86 | 842 | RETURN_INT(++written); |
64d99621 | 843 | } |
a3cb91f5 | 844 | } else { |
e3dcf906 ML |
845 | /* Actual failure of some kind. */ |
846 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 847 | } |
e3dcf906 | 848 | } else { |
9af8cff3 | 849 | DEBUG("Single byte written immediately"); |
e3dcf906 | 850 | written++; |
a3cb91f5 ML |
851 | } |
852 | } | |
853 | ||
9af8cff3 | 854 | DEBUG("All bytes written immediately"); |
e3dcf906 | 855 | |
9caa2e86 | 856 | RETURN_INT(written); |
74510d4b ML |
857 | #else |
858 | /* Returns the number of bytes written, or -1 upon failure. */ | |
859 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 860 | |
74510d4b | 861 | if (written < 0) |
c33efc48 | 862 | RETURN_FAIL("write() failed"); |
74510d4b | 863 | else |
9caa2e86 | 864 | RETURN_INT(written); |
74510d4b ML |
865 | #endif |
866 | } | |
867 | ||
970f279a AJ |
868 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
869 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
870 | { |
871 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
872 | ||
873 | CHECK_OPEN_PORT(); | |
874 | ||
875 | if (!buf) | |
876 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
877 | ||
878 | if (timeout) | |
7890cef6 ML |
879 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
880 | count, port->name, timeout); | |
e3dcf906 | 881 | else |
7890cef6 ML |
882 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
883 | count, port->name); | |
e3dcf906 ML |
884 | |
885 | if (count == 0) | |
9caa2e86 | 886 | RETURN_INT(0); |
e3dcf906 ML |
887 | |
888 | #ifdef _WIN32 | |
889 | DWORD bytes_read = 0; | |
890 | ||
891 | /* Set timeout. */ | |
892 | port->timeouts.ReadIntervalTimeout = 0; | |
893 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
894 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
895 | RETURN_FAIL("SetCommTimeouts() failed"); | |
896 | ||
897 | /* Start read. */ | |
898 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
899 | if (GetLastError() == ERROR_IO_PENDING) { | |
900 | DEBUG("Waiting for read to complete"); | |
901 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
7890cef6 | 902 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
e3dcf906 ML |
903 | } else { |
904 | RETURN_FAIL("ReadFile() failed"); | |
905 | } | |
906 | } else { | |
907 | DEBUG("Read completed immediately"); | |
6f1186aa ML |
908 | bytes_read = count; |
909 | } | |
910 | ||
911 | /* Start background operation for subsequent events. */ | |
912 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
913 | if (GetLastError() != ERROR_IO_PENDING) | |
914 | RETURN_FAIL("WaitCommEvent() failed"); | |
e3dcf906 | 915 | } |
6f1186aa | 916 | |
9caa2e86 | 917 | RETURN_INT(bytes_read); |
6f1186aa | 918 | |
e3dcf906 ML |
919 | #else |
920 | size_t bytes_read = 0; | |
921 | unsigned char *ptr = (unsigned char *) buf; | |
922 | struct timeval start, delta, now, end = {0, 0}; | |
923 | fd_set fds; | |
924 | int result; | |
925 | ||
926 | if (timeout) { | |
927 | /* Get time at start of operation. */ | |
928 | gettimeofday(&start, NULL); | |
929 | /* Define duration of timeout. */ | |
930 | delta.tv_sec = timeout / 1000; | |
1b342042 | 931 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
932 | /* Calculate time at which we should give up. */ |
933 | timeradd(&start, &delta, &end); | |
934 | } | |
935 | ||
936 | /* Loop until we have the requested number of bytes. */ | |
937 | while (bytes_read < count) | |
938 | { | |
939 | /* Wait until data is available. */ | |
940 | FD_ZERO(&fds); | |
941 | FD_SET(port->fd, &fds); | |
942 | if (timeout) { | |
943 | gettimeofday(&now, NULL); | |
944 | if (timercmp(&now, &end, >)) | |
945 | /* Timeout has expired. */ | |
9caa2e86 | 946 | RETURN_INT(bytes_read); |
e3dcf906 ML |
947 | timersub(&end, &now, &delta); |
948 | } | |
949 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
950 | if (result < 0) { |
951 | if (errno == EINTR) { | |
952 | DEBUG("select() call was interrupted, repeating"); | |
953 | continue; | |
954 | } else { | |
955 | RETURN_FAIL("select() failed"); | |
956 | } | |
957 | } else if (result == 0) { | |
e3dcf906 | 958 | DEBUG("read timed out"); |
9caa2e86 | 959 | RETURN_INT(bytes_read); |
e3dcf906 ML |
960 | } |
961 | ||
962 | /* Do read. */ | |
963 | result = read(port->fd, ptr, count - bytes_read); | |
964 | ||
965 | if (result < 0) { | |
966 | if (errno == EAGAIN) | |
967 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
968 | continue; | |
969 | else | |
970 | /* This is an actual failure. */ | |
971 | RETURN_FAIL("read() failed"); | |
972 | } | |
973 | ||
974 | bytes_read += result; | |
975 | ptr += result; | |
976 | } | |
977 | ||
9caa2e86 | 978 | RETURN_INT(bytes_read); |
e3dcf906 ML |
979 | #endif |
980 | } | |
981 | ||
970f279a AJ |
982 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
983 | size_t count) | |
74510d4b | 984 | { |
c33efc48 ML |
985 | TRACE("%p, %p, %d", port, buf, count); |
986 | ||
dec10e31 | 987 | CHECK_OPEN_PORT(); |
74510d4b ML |
988 | |
989 | if (!buf) | |
c33efc48 | 990 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 991 | |
7890cef6 | 992 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 993 | |
74510d4b | 994 | #ifdef _WIN32 |
e3dcf906 | 995 | DWORD bytes_read; |
f92f1f0c | 996 | |
e3dcf906 ML |
997 | /* Set timeout. */ |
998 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
999 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
1000 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1001 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1002 | ||
1003 | /* Do read. */ | |
1004 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1005 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1006 | |
1007 | /* Get number of bytes read. */ | |
1622ef60 ML |
1008 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1009 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 1010 | |
6f1186aa ML |
1011 | if (bytes_read > 0) { |
1012 | /* Start background operation for subsequent events. */ | |
1013 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
1014 | if (GetLastError() != ERROR_IO_PENDING) | |
1015 | RETURN_FAIL("WaitCommEvent() failed"); | |
1016 | } | |
1017 | } | |
1018 | ||
9caa2e86 | 1019 | RETURN_INT(bytes_read); |
74510d4b ML |
1020 | #else |
1021 | ssize_t bytes_read; | |
f92f1f0c | 1022 | |
74510d4b | 1023 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1024 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1025 | if (errno == EAGAIN) |
1026 | /* No bytes available. */ | |
33d5ff47 ML |
1027 | bytes_read = 0; |
1028 | else | |
1029 | /* This is an actual failure. */ | |
1030 | RETURN_FAIL("read() failed"); | |
1031 | } | |
9caa2e86 | 1032 | RETURN_INT(bytes_read); |
74510d4b ML |
1033 | #endif |
1034 | } | |
1035 | ||
970f279a | 1036 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1037 | { |
1038 | TRACE("%p", port); | |
1039 | ||
1040 | CHECK_OPEN_PORT(); | |
1041 | ||
7890cef6 | 1042 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1043 | |
1044 | #ifdef _WIN32 | |
1045 | DWORD errors; | |
1046 | COMSTAT comstat; | |
1047 | ||
1048 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1049 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1050 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1051 | #else |
1052 | int bytes_waiting; | |
1053 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1054 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1055 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1056 | #endif |
1057 | } | |
1058 | ||
970f279a | 1059 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1060 | { |
1061 | TRACE("%p", port); | |
1062 | ||
1063 | CHECK_OPEN_PORT(); | |
1064 | ||
7890cef6 | 1065 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1066 | |
1067 | #ifdef _WIN32 | |
1068 | DWORD errors; | |
1069 | COMSTAT comstat; | |
1070 | ||
1071 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1072 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1073 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1074 | #else |
1075 | int bytes_waiting; | |
1076 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1077 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1078 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1079 | #endif |
1080 | } | |
1081 | ||
970f279a | 1082 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1083 | { |
1084 | struct sp_event_set *result; | |
1085 | ||
1086 | TRACE("%p", result_ptr); | |
1087 | ||
1088 | if (!result_ptr) | |
1089 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1090 | ||
1091 | *result_ptr = NULL; | |
1092 | ||
1093 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1094 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1095 | ||
1096 | memset(result, 0, sizeof(struct sp_event_set)); | |
1097 | ||
1098 | *result_ptr = result; | |
1099 | ||
1100 | RETURN_OK(); | |
1101 | } | |
1102 | ||
1103 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1104 | event_handle handle, enum sp_event mask) | |
1105 | { | |
1106 | void *new_handles; | |
1107 | enum sp_event *new_masks; | |
1108 | ||
1109 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1110 | ||
1111 | if (!(new_handles = realloc(event_set->handles, | |
1112 | sizeof(event_handle) * (event_set->count + 1)))) | |
1113 | RETURN_ERROR(SP_ERR_MEM, "handle array realloc() failed"); | |
1114 | ||
1115 | if (!(new_masks = realloc(event_set->masks, | |
1116 | sizeof(enum sp_event) * (event_set->count + 1)))) | |
1117 | RETURN_ERROR(SP_ERR_MEM, "mask array realloc() failed"); | |
1118 | ||
1119 | event_set->handles = new_handles; | |
1120 | event_set->masks = new_masks; | |
1121 | ||
1122 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1123 | event_set->masks[event_set->count] = mask; | |
1124 | ||
1125 | event_set->count++; | |
1126 | ||
1127 | RETURN_OK(); | |
1128 | } | |
1129 | ||
970f279a | 1130 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1131 | const struct sp_port *port, enum sp_event mask) |
1132 | { | |
1133 | TRACE("%p, %p, %d", event_set, port, mask); | |
1134 | ||
1135 | if (!event_set) | |
1136 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1137 | ||
1138 | if (!port) | |
1139 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1140 | ||
1141 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1142 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1143 | ||
1144 | if (!mask) | |
1145 | RETURN_OK(); | |
1146 | ||
1147 | #ifdef _WIN32 | |
1148 | enum sp_event handle_mask; | |
1149 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1150 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1151 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1152 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1153 | #else | |
1154 | TRY(add_handle(event_set, port->fd, mask)); | |
1155 | #endif | |
1156 | ||
1157 | RETURN_OK(); | |
1158 | } | |
1159 | ||
970f279a | 1160 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1161 | { |
1162 | TRACE("%p", event_set); | |
1163 | ||
1164 | if (!event_set) { | |
1165 | DEBUG("Null event set"); | |
1166 | RETURN(); | |
1167 | } | |
1168 | ||
1169 | DEBUG("Freeing event set"); | |
1170 | ||
1171 | if (event_set->handles) | |
1172 | free(event_set->handles); | |
1173 | if (event_set->masks) | |
1174 | free(event_set->masks); | |
1175 | ||
1176 | free(event_set); | |
1177 | ||
1178 | RETURN(); | |
1179 | } | |
1180 | ||
970f279a AJ |
1181 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1182 | unsigned int timeout) | |
6f1186aa ML |
1183 | { |
1184 | TRACE("%p, %d", event_set, timeout); | |
1185 | ||
1186 | if (!event_set) | |
1187 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1188 | ||
1189 | #ifdef _WIN32 | |
1190 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1191 | timeout ? timeout : INFINITE) == WAIT_FAILED) | |
1192 | RETURN_FAIL("WaitForMultipleObjects() failed"); | |
1193 | ||
1194 | RETURN_OK(); | |
1195 | #else | |
1196 | struct timeval start, delta, now, end = {0, 0}; | |
1197 | int result, timeout_remaining; | |
1198 | struct pollfd *pollfds; | |
1199 | unsigned int i; | |
1200 | ||
1201 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1202 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1203 | ||
1204 | for (i = 0; i < event_set->count; i++) { | |
1205 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1206 | pollfds[i].events = 0; | |
1207 | pollfds[i].revents = 0; | |
1208 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1209 | pollfds[i].events |= POLLIN; | |
1210 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1211 | pollfds[i].events |= POLLOUT; | |
1212 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1213 | pollfds[i].events |= POLLERR; | |
1214 | } | |
1215 | ||
1216 | if (timeout) { | |
1217 | /* Get time at start of operation. */ | |
1218 | gettimeofday(&start, NULL); | |
1219 | /* Define duration of timeout. */ | |
1220 | delta.tv_sec = timeout / 1000; | |
1221 | delta.tv_usec = (timeout % 1000) * 1000; | |
1222 | /* Calculate time at which we should give up. */ | |
1223 | timeradd(&start, &delta, &end); | |
1224 | } | |
1225 | ||
1226 | /* Loop until an event occurs. */ | |
1227 | while (1) | |
1228 | { | |
1229 | if (timeout) { | |
1230 | gettimeofday(&now, NULL); | |
1231 | if (timercmp(&now, &end, >)) { | |
1232 | DEBUG("wait timed out"); | |
1233 | break; | |
1234 | } | |
1235 | timersub(&end, &now, &delta); | |
1236 | timeout_remaining = delta.tv_sec * 1000 + delta.tv_usec / 1000; | |
1237 | } | |
1238 | ||
1239 | result = poll(pollfds, event_set->count, timeout ? timeout_remaining : -1); | |
1240 | ||
1241 | if (result < 0) { | |
1242 | if (errno == EINTR) { | |
1243 | DEBUG("poll() call was interrupted, repeating"); | |
1244 | continue; | |
1245 | } else { | |
1246 | free(pollfds); | |
1247 | RETURN_FAIL("poll() failed"); | |
1248 | } | |
1249 | } else if (result == 0) { | |
1250 | DEBUG("poll() timed out"); | |
1251 | break; | |
1252 | } else { | |
1253 | DEBUG("poll() completed"); | |
1254 | break; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | free(pollfds); | |
1259 | RETURN_OK(); | |
1260 | #endif | |
1261 | } | |
1262 | ||
5cea279a | 1263 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1264 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1265 | { | |
1266 | void *data; | |
1267 | ||
c33efc48 ML |
1268 | TRACE("%d, %p", fd, baudrate); |
1269 | ||
ea667be7 ML |
1270 | DEBUG("Getting baud rate"); |
1271 | ||
7a6d2196 | 1272 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1273 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1274 | |
8d43110a ML |
1275 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1276 | free(data); | |
c33efc48 | 1277 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1278 | } |
7a6d2196 ML |
1279 | |
1280 | *baudrate = get_termios_speed(data); | |
1281 | ||
8d43110a ML |
1282 | free(data); |
1283 | ||
c33efc48 | 1284 | RETURN_OK(); |
7a6d2196 ML |
1285 | } |
1286 | ||
1287 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1288 | { | |
1289 | void *data; | |
1290 | ||
c33efc48 ML |
1291 | TRACE("%d, %d", fd, baudrate); |
1292 | ||
ea667be7 ML |
1293 | DEBUG("Getting baud rate"); |
1294 | ||
7a6d2196 | 1295 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1296 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1297 | |
8d43110a ML |
1298 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1299 | free(data); | |
c33efc48 | 1300 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1301 | } |
7a6d2196 | 1302 | |
ea667be7 ML |
1303 | DEBUG("Setting baud rate"); |
1304 | ||
7a6d2196 ML |
1305 | set_termios_speed(data, baudrate); |
1306 | ||
8d43110a ML |
1307 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1308 | free(data); | |
c33efc48 | 1309 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
1310 | } |
1311 | ||
1312 | free(data); | |
7a6d2196 | 1313 | |
c33efc48 | 1314 | RETURN_OK(); |
7a6d2196 | 1315 | } |
5cea279a | 1316 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1317 | |
1318 | #ifdef USE_TERMIOX | |
bd791fe1 | 1319 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1320 | { |
bd791fe1 | 1321 | void *termx; |
40978c2b | 1322 | |
bd791fe1 | 1323 | TRACE("%d, %p", fd, data); |
c33efc48 | 1324 | |
ea667be7 ML |
1325 | DEBUG("Getting advanced flow control"); |
1326 | ||
bd791fe1 | 1327 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1328 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1329 | |
bd791fe1 ML |
1330 | if (ioctl(fd, TCGETX, termx) < 0) { |
1331 | free(termx); | |
c33efc48 | 1332 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1333 | } |
40978c2b | 1334 | |
bd791fe1 ML |
1335 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1336 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1337 | |
bd791fe1 | 1338 | free(termx); |
8d43110a | 1339 | |
c33efc48 | 1340 | RETURN_OK(); |
40978c2b ML |
1341 | } |
1342 | ||
bd791fe1 | 1343 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1344 | { |
bd791fe1 | 1345 | void *termx; |
40978c2b | 1346 | |
bd791fe1 | 1347 | TRACE("%d, %p", fd, data); |
c33efc48 | 1348 | |
ea667be7 ML |
1349 | DEBUG("Getting advanced flow control"); |
1350 | ||
bd791fe1 | 1351 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1352 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1353 | |
bd791fe1 ML |
1354 | if (ioctl(fd, TCGETX, termx) < 0) { |
1355 | free(termx); | |
c33efc48 | 1356 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1357 | } |
40978c2b | 1358 | |
ea667be7 ML |
1359 | DEBUG("Setting advanced flow control"); |
1360 | ||
bd791fe1 ML |
1361 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1362 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1363 | |
bd791fe1 ML |
1364 | if (ioctl(fd, TCSETX, termx) < 0) { |
1365 | free(termx); | |
c33efc48 | 1366 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
1367 | } |
1368 | ||
bd791fe1 | 1369 | free(termx); |
40978c2b | 1370 | |
c33efc48 | 1371 | RETURN_OK(); |
40978c2b ML |
1372 | } |
1373 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1374 | |
eb6ed20f ML |
1375 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1376 | struct sp_port_config *config) | |
8094e4a0 | 1377 | { |
da2748bf | 1378 | unsigned int i; |
cbf628c7 | 1379 | |
c33efc48 ML |
1380 | TRACE("%p, %p, %p", port, data, config); |
1381 | ||
7890cef6 | 1382 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1383 | |
8094e4a0 | 1384 | #ifdef _WIN32 |
e33ab9aa | 1385 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1386 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1387 | |
067417af | 1388 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1389 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1390 | config->baudrate = std_baudrates[i].value; |
1391 | break; | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | if (i == NUM_STD_BAUDRATES) | |
1396 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1397 | config->baudrate = data->dcb.BaudRate; |
067417af | 1398 | |
e33ab9aa | 1399 | config->bits = data->dcb.ByteSize; |
067417af | 1400 | |
e33ab9aa ML |
1401 | if (data->dcb.fParity) |
1402 | switch (data->dcb.Parity) { | |
067417af ML |
1403 | case NOPARITY: |
1404 | config->parity = SP_PARITY_NONE; | |
1405 | break; | |
e432ce60 ML |
1406 | case ODDPARITY: |
1407 | config->parity = SP_PARITY_ODD; | |
1408 | break; | |
067417af ML |
1409 | case EVENPARITY: |
1410 | config->parity = SP_PARITY_EVEN; | |
1411 | break; | |
e432ce60 ML |
1412 | case MARKPARITY: |
1413 | config->parity = SP_PARITY_MARK; | |
1414 | break; | |
1415 | case SPACEPARITY: | |
1416 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1417 | break; |
1418 | default: | |
1419 | config->parity = -1; | |
1420 | } | |
1421 | else | |
1422 | config->parity = SP_PARITY_NONE; | |
1423 | ||
e33ab9aa | 1424 | switch (data->dcb.StopBits) { |
067417af ML |
1425 | case ONESTOPBIT: |
1426 | config->stopbits = 1; | |
1427 | break; | |
1428 | case TWOSTOPBITS: | |
1429 | config->stopbits = 2; | |
1430 | break; | |
1431 | default: | |
1432 | config->stopbits = -1; | |
1433 | } | |
1434 | ||
e33ab9aa | 1435 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1436 | case RTS_CONTROL_DISABLE: |
1437 | config->rts = SP_RTS_OFF; | |
1438 | break; | |
1439 | case RTS_CONTROL_ENABLE: | |
1440 | config->rts = SP_RTS_ON; | |
1441 | break; | |
1442 | case RTS_CONTROL_HANDSHAKE: | |
1443 | config->rts = SP_RTS_FLOW_CONTROL; | |
1444 | break; | |
1445 | default: | |
1446 | config->rts = -1; | |
067417af ML |
1447 | } |
1448 | ||
e33ab9aa | 1449 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1450 | |
e33ab9aa | 1451 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1452 | case DTR_CONTROL_DISABLE: |
1453 | config->dtr = SP_DTR_OFF; | |
1454 | break; | |
1455 | case DTR_CONTROL_ENABLE: | |
1456 | config->dtr = SP_DTR_ON; | |
1457 | break; | |
1458 | case DTR_CONTROL_HANDSHAKE: | |
1459 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1460 | break; | |
1461 | default: | |
1462 | config->dtr = -1; | |
067417af ML |
1463 | } |
1464 | ||
e33ab9aa ML |
1465 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1466 | ||
c6754b45 ML |
1467 | if (data->dcb.fInX) { |
1468 | if (data->dcb.fOutX) | |
1469 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1470 | else | |
1471 | config->xon_xoff = SP_XONXOFF_IN; | |
1472 | } else { | |
1473 | if (data->dcb.fOutX) | |
1474 | config->xon_xoff = SP_XONXOFF_OUT; | |
1475 | else | |
1476 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1477 | } | |
1478 | ||
e33ab9aa ML |
1479 | #else // !_WIN32 |
1480 | ||
1481 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1482 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1483 | |
1484 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1485 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1486 | |
1487 | #ifdef USE_TERMIOX | |
bd791fe1 | 1488 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1489 | |
1490 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1491 | data->termiox_supported = 0; | |
1492 | else if (ret < 0) | |
c33efc48 | 1493 | RETURN_CODEVAL(ret); |
68ec29db ML |
1494 | else |
1495 | data->termiox_supported = 1; | |
1496 | #else | |
1497 | data->termiox_supported = 0; | |
40978c2b ML |
1498 | #endif |
1499 | ||
067417af | 1500 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1501 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1502 | config->baudrate = std_baudrates[i].value; |
1503 | break; | |
1504 | } | |
1505 | } | |
1506 | ||
31b3a8f5 MH |
1507 | if (i == NUM_STD_BAUDRATES) { |
1508 | #ifdef __APPLE__ | |
1509 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1510 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1511 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1512 | #else |
067417af | 1513 | config->baudrate = -1; |
31b3a8f5 MH |
1514 | #endif |
1515 | } | |
067417af | 1516 | |
e33ab9aa | 1517 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1518 | case CS8: |
1519 | config->bits = 8; | |
1520 | break; | |
1521 | case CS7: | |
1522 | config->bits = 7; | |
1523 | break; | |
1524 | case CS6: | |
1525 | config->bits = 6; | |
1526 | break; | |
1527 | case CS5: | |
1528 | config->bits = 5; | |
1529 | break; | |
1530 | default: | |
1531 | config->bits = -1; | |
1532 | } | |
1533 | ||
e33ab9aa | 1534 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1535 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1536 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1537 | config->parity = -1; |
c3e05092 | 1538 | #ifdef CMSPAR |
e432ce60 ML |
1539 | else if (data->term.c_cflag & CMSPAR) |
1540 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1541 | #endif |
067417af | 1542 | else |
e33ab9aa | 1543 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1544 | |
e33ab9aa | 1545 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1546 | |
e33ab9aa | 1547 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1548 | config->rts = SP_RTS_FLOW_CONTROL; |
1549 | config->cts = SP_CTS_FLOW_CONTROL; | |
1550 | } else { | |
bd791fe1 | 1551 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1552 | config->rts = SP_RTS_FLOW_CONTROL; |
1553 | else | |
1554 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1555 | ||
bd791fe1 | 1556 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1557 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1558 | } |
1559 | ||
bd791fe1 | 1560 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1561 | config->dtr = SP_DTR_FLOW_CONTROL; |
1562 | else | |
1563 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1564 | ||
bd791fe1 | 1565 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1566 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1567 | |
e29b93a5 ML |
1568 | if (data->term.c_iflag & IXOFF) { |
1569 | if (data->term.c_iflag & IXON) | |
1570 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1571 | else | |
1572 | config->xon_xoff = SP_XONXOFF_IN; | |
1573 | } else { | |
1574 | if (data->term.c_iflag & IXON) | |
1575 | config->xon_xoff = SP_XONXOFF_OUT; | |
1576 | else | |
1577 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1578 | } | |
067417af ML |
1579 | #endif |
1580 | ||
c33efc48 | 1581 | RETURN_OK(); |
067417af ML |
1582 | } |
1583 | ||
7a6d2196 | 1584 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1585 | const struct sp_port_config *config) |
18fc2dd1 | 1586 | { |
e33ab9aa | 1587 | unsigned int i; |
31b3a8f5 MH |
1588 | #ifdef __APPLE__ |
1589 | BAUD_TYPE baud_nonstd; | |
1590 | ||
1591 | baud_nonstd = B0; | |
1592 | #endif | |
5cea279a | 1593 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1594 | int baud_nonstd = 0; |
1595 | #endif | |
18fc2dd1 | 1596 | |
c33efc48 ML |
1597 | TRACE("%p, %p, %p", port, data, config); |
1598 | ||
7890cef6 | 1599 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1600 | |
e33ab9aa | 1601 | #ifdef _WIN32 |
eac329d2 | 1602 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1603 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1604 | if (config->baudrate == std_baudrates[i].value) { | |
1605 | data->dcb.BaudRate = std_baudrates[i].index; | |
1606 | break; | |
1607 | } | |
1608 | } | |
18fc2dd1 | 1609 | |
e33ab9aa ML |
1610 | if (i == NUM_STD_BAUDRATES) |
1611 | data->dcb.BaudRate = config->baudrate; | |
1612 | } | |
18fc2dd1 | 1613 | |
e33ab9aa ML |
1614 | if (config->bits >= 0) |
1615 | data->dcb.ByteSize = config->bits; | |
1616 | ||
1617 | if (config->parity >= 0) { | |
1618 | switch (config->parity) { | |
e33ab9aa ML |
1619 | case SP_PARITY_NONE: |
1620 | data->dcb.Parity = NOPARITY; | |
1621 | break; | |
e432ce60 ML |
1622 | case SP_PARITY_ODD: |
1623 | data->dcb.Parity = ODDPARITY; | |
1624 | break; | |
e33ab9aa ML |
1625 | case SP_PARITY_EVEN: |
1626 | data->dcb.Parity = EVENPARITY; | |
1627 | break; | |
e432ce60 ML |
1628 | case SP_PARITY_MARK: |
1629 | data->dcb.Parity = MARKPARITY; | |
1630 | break; | |
1631 | case SP_PARITY_SPACE: | |
1632 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1633 | break; |
1634 | default: | |
c33efc48 | 1635 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1636 | } |
18fc2dd1 ML |
1637 | } |
1638 | ||
e33ab9aa ML |
1639 | if (config->stopbits >= 0) { |
1640 | switch (config->stopbits) { | |
1641 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1642 | case 1: | |
1643 | data->dcb.StopBits = ONESTOPBIT; | |
1644 | break; | |
1645 | case 2: | |
1646 | data->dcb.StopBits = TWOSTOPBITS; | |
1647 | break; | |
1648 | default: | |
c33efc48 | 1649 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1650 | } |
1651 | } | |
1652 | ||
1653 | if (config->rts >= 0) { | |
1654 | switch (config->rts) { | |
1655 | case SP_RTS_OFF: | |
1656 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1657 | break; | |
1658 | case SP_RTS_ON: | |
1659 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1660 | break; | |
1661 | case SP_RTS_FLOW_CONTROL: | |
1662 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1663 | break; | |
1664 | default: | |
c33efc48 | 1665 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1666 | } |
1667 | } | |
1668 | ||
1669 | if (config->cts >= 0) { | |
1670 | switch (config->cts) { | |
1671 | case SP_CTS_IGNORE: | |
1672 | data->dcb.fOutxCtsFlow = FALSE; | |
1673 | break; | |
1674 | case SP_CTS_FLOW_CONTROL: | |
1675 | data->dcb.fOutxCtsFlow = TRUE; | |
1676 | break; | |
1677 | default: | |
c33efc48 | 1678 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1679 | } |
1680 | } | |
1681 | ||
1682 | if (config->dtr >= 0) { | |
1683 | switch (config->dtr) { | |
1684 | case SP_DTR_OFF: | |
1685 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1686 | break; | |
1687 | case SP_DTR_ON: | |
1688 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1689 | break; | |
1690 | case SP_DTR_FLOW_CONTROL: | |
1691 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1692 | break; | |
1693 | default: | |
c33efc48 | 1694 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1695 | } |
1696 | } | |
1697 | ||
1698 | if (config->dsr >= 0) { | |
1699 | switch (config->dsr) { | |
1700 | case SP_DSR_IGNORE: | |
1701 | data->dcb.fOutxDsrFlow = FALSE; | |
1702 | break; | |
1703 | case SP_DSR_FLOW_CONTROL: | |
1704 | data->dcb.fOutxDsrFlow = TRUE; | |
1705 | break; | |
1706 | default: | |
c33efc48 | 1707 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1708 | } |
18fc2dd1 ML |
1709 | } |
1710 | ||
e33ab9aa ML |
1711 | if (config->xon_xoff >= 0) { |
1712 | switch (config->xon_xoff) { | |
1713 | case SP_XONXOFF_DISABLED: | |
1714 | data->dcb.fInX = FALSE; | |
1715 | data->dcb.fOutX = FALSE; | |
1716 | break; | |
1717 | case SP_XONXOFF_IN: | |
1718 | data->dcb.fInX = TRUE; | |
1719 | data->dcb.fOutX = FALSE; | |
1720 | break; | |
1721 | case SP_XONXOFF_OUT: | |
1722 | data->dcb.fInX = FALSE; | |
1723 | data->dcb.fOutX = TRUE; | |
1724 | break; | |
1725 | case SP_XONXOFF_INOUT: | |
1726 | data->dcb.fInX = TRUE; | |
1727 | data->dcb.fOutX = TRUE; | |
1728 | break; | |
1729 | default: | |
c33efc48 | 1730 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1731 | } |
1732 | } | |
1733 | ||
1734 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1735 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1736 | |
31b3a8f5 | 1737 | #else /* !_WIN32 */ |
e33ab9aa | 1738 | |
7a6d2196 ML |
1739 | int controlbits; |
1740 | ||
eac329d2 | 1741 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1742 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1743 | if (config->baudrate == std_baudrates[i].value) { | |
1744 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1745 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1746 | |
1747 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1748 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1749 | break; |
1750 | } | |
1751 | } | |
1752 | ||
31b3a8f5 MH |
1753 | /* Non-standard baud rate */ |
1754 | if (i == NUM_STD_BAUDRATES) { | |
1755 | #ifdef __APPLE__ | |
24abdb68 | 1756 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1757 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1758 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1759 | baud_nonstd = config->baudrate; |
5cea279a | 1760 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1761 | baud_nonstd = 1; |
31b3a8f5 | 1762 | #else |
c33efc48 | 1763 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1764 | #endif |
1765 | } | |
e33ab9aa ML |
1766 | } |
1767 | ||
1768 | if (config->bits >= 0) { | |
1769 | data->term.c_cflag &= ~CSIZE; | |
1770 | switch (config->bits) { | |
1771 | case 8: | |
1772 | data->term.c_cflag |= CS8; | |
1773 | break; | |
1774 | case 7: | |
1775 | data->term.c_cflag |= CS7; | |
1776 | break; | |
1777 | case 6: | |
1778 | data->term.c_cflag |= CS6; | |
1779 | break; | |
23922313 UH |
1780 | case 5: |
1781 | data->term.c_cflag |= CS5; | |
1782 | break; | |
e33ab9aa | 1783 | default: |
c33efc48 | 1784 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1785 | } |
1786 | } | |
1787 | ||
1788 | if (config->parity >= 0) { | |
1789 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1790 | data->term.c_cflag &= ~(PARENB | PARODD); |
1791 | #ifdef CMSPAR | |
1792 | data->term.c_cflag &= ~CMSPAR; | |
1793 | #endif | |
e33ab9aa ML |
1794 | switch (config->parity) { |
1795 | case SP_PARITY_NONE: | |
1796 | data->term.c_iflag |= IGNPAR; | |
1797 | break; | |
1798 | case SP_PARITY_EVEN: | |
1799 | data->term.c_cflag |= PARENB; | |
1800 | break; | |
1801 | case SP_PARITY_ODD: | |
1802 | data->term.c_cflag |= PARENB | PARODD; | |
1803 | break; | |
afb518f0 | 1804 | #ifdef CMSPAR |
e432ce60 | 1805 | case SP_PARITY_MARK: |
c3e05092 | 1806 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 1807 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
1808 | break; |
1809 | case SP_PARITY_SPACE: | |
c3e05092 | 1810 | data->term.c_cflag |= PARENB; |
c3e05092 | 1811 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 1812 | break; |
afb518f0 ML |
1813 | #else |
1814 | case SP_PARITY_MARK: | |
1815 | case SP_PARITY_SPACE: | |
1816 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
1817 | #endif | |
e33ab9aa | 1818 | default: |
c33efc48 | 1819 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1820 | } |
1821 | } | |
1822 | ||
1823 | if (config->stopbits >= 0) { | |
1824 | data->term.c_cflag &= ~CSTOPB; | |
1825 | switch (config->stopbits) { | |
1826 | case 1: | |
1827 | data->term.c_cflag &= ~CSTOPB; | |
1828 | break; | |
1829 | case 2: | |
1830 | data->term.c_cflag |= CSTOPB; | |
1831 | break; | |
1832 | default: | |
c33efc48 | 1833 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1834 | } |
1835 | } | |
1836 | ||
eac329d2 | 1837 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 1838 | if (data->termiox_supported) { |
bd791fe1 | 1839 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
1840 | switch (config->rts) { |
1841 | case SP_RTS_OFF: | |
1842 | case SP_RTS_ON: | |
1843 | controlbits = TIOCM_RTS; | |
1844 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1845 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1846 | break; |
1847 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 1848 | data->rts_flow = 1; |
68ec29db ML |
1849 | break; |
1850 | default: | |
1851 | break; | |
e33ab9aa | 1852 | } |
68ec29db | 1853 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 1854 | data->cts_flow = 1; |
e33ab9aa | 1855 | |
bd791fe1 | 1856 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 1857 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1858 | else |
1859 | data->term.c_iflag &= ~CRTSCTS; | |
1860 | } else { | |
1861 | /* Asymmetric use of RTS/CTS not supported. */ | |
1862 | if (data->term.c_iflag & CRTSCTS) { | |
1863 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1864 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1865 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1866 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1867 | } |
1868 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1869 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1870 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1871 | } |
e33ab9aa | 1872 | } else { |
68ec29db ML |
1873 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1874 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1875 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1876 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1877 | } |
1878 | ||
1879 | if (config->rts >= 0) { | |
1880 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1881 | data->term.c_iflag |= CRTSCTS; | |
1882 | } else { | |
1883 | controlbits = TIOCM_RTS; | |
1884 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1885 | &controlbits) < 0) | |
c33efc48 | 1886 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1887 | } |
e33ab9aa ML |
1888 | } |
1889 | } | |
1890 | } | |
1891 | ||
eac329d2 | 1892 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 1893 | if (data->termiox_supported) { |
bd791fe1 | 1894 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
1895 | switch (config->dtr) { |
1896 | case SP_DTR_OFF: | |
1897 | case SP_DTR_ON: | |
1898 | controlbits = TIOCM_DTR; | |
1899 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1900 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1901 | break; |
1902 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 1903 | data->dtr_flow = 1; |
68ec29db ML |
1904 | break; |
1905 | default: | |
1906 | break; | |
1907 | } | |
1908 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 1909 | data->dsr_flow = 1; |
68ec29db ML |
1910 | } else { |
1911 | /* DTR/DSR flow control not supported. */ | |
1912 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1913 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1914 | |
68ec29db ML |
1915 | if (config->dtr >= 0) { |
1916 | controlbits = TIOCM_DTR; | |
1917 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1918 | &controlbits) < 0) | |
c33efc48 | 1919 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1920 | } |
e33ab9aa ML |
1921 | } |
1922 | } | |
1923 | ||
1924 | if (config->xon_xoff >= 0) { | |
1925 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1926 | switch (config->xon_xoff) { | |
1927 | case SP_XONXOFF_DISABLED: | |
1928 | break; | |
1929 | case SP_XONXOFF_IN: | |
1930 | data->term.c_iflag |= IXOFF; | |
1931 | break; | |
1932 | case SP_XONXOFF_OUT: | |
1933 | data->term.c_iflag |= IXON | IXANY; | |
1934 | break; | |
1935 | case SP_XONXOFF_INOUT: | |
1936 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1937 | break; | |
1938 | default: | |
c33efc48 | 1939 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1940 | } |
1941 | } | |
1942 | ||
3f5c06d0 | 1943 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 1944 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1945 | |
1946 | #ifdef __APPLE__ | |
1947 | if (baud_nonstd != B0) { | |
1948 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1949 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
1950 | /* Set baud rates in data->term to correct, but incompatible |
1951 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
1952 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 1953 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1954 | } |
7a6d2196 | 1955 | #elif defined(__linux__) |
5cea279a | 1956 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1957 | if (baud_nonstd) |
1958 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 1959 | #endif |
40978c2b | 1960 | #ifdef USE_TERMIOX |
68ec29db | 1961 | if (data->termiox_supported) |
bd791fe1 | 1962 | TRY(set_flow(port->fd, data)); |
40978c2b | 1963 | #endif |
7a6d2196 | 1964 | #endif |
31b3a8f5 MH |
1965 | |
1966 | #endif /* !_WIN32 */ | |
e33ab9aa | 1967 | |
c33efc48 | 1968 | RETURN_OK(); |
e33ab9aa ML |
1969 | } |
1970 | ||
970f279a | 1971 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 1972 | { |
59131d60 | 1973 | struct sp_port_config *config; |
9b1502ef | 1974 | |
00d8c56d UH |
1975 | TRACE("%p", config_ptr); |
1976 | ||
9b1502ef ML |
1977 | if (!config_ptr) |
1978 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
1979 | ||
59131d60 ML |
1980 | *config_ptr = NULL; |
1981 | ||
1982 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
9b1502ef ML |
1983 | RETURN_ERROR(SP_ERR_MEM, "config malloc failed"); |
1984 | ||
59131d60 ML |
1985 | config->baudrate = -1; |
1986 | config->bits = -1; | |
1987 | config->parity = -1; | |
1988 | config->stopbits = -1; | |
1989 | config->rts = -1; | |
1990 | config->cts = -1; | |
1991 | config->dtr = -1; | |
1992 | config->dsr = -1; | |
1993 | ||
1994 | *config_ptr = config; | |
1995 | ||
9b1502ef ML |
1996 | RETURN_OK(); |
1997 | } | |
1998 | ||
970f279a | 1999 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2000 | { |
2001 | TRACE("%p", config); | |
2002 | ||
2003 | if (!config) | |
2004 | DEBUG("Null config"); | |
2005 | else | |
2006 | free(config); | |
2007 | ||
2008 | RETURN(); | |
2009 | } | |
2010 | ||
970f279a AJ |
2011 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2012 | struct sp_port_config *config) | |
70cd37de ML |
2013 | { |
2014 | struct port_data data; | |
2015 | ||
2016 | TRACE("%p, %p", port, config); | |
2017 | ||
2018 | CHECK_OPEN_PORT(); | |
2019 | ||
2020 | if (!config) | |
9b1502ef | 2021 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2022 | |
2023 | TRY(get_config(port, &data, config)); | |
2024 | ||
2025 | RETURN_OK(); | |
2026 | } | |
2027 | ||
970f279a AJ |
2028 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2029 | const struct sp_port_config *config) | |
e33ab9aa | 2030 | { |
8f189c4c | 2031 | struct port_data data; |
e33ab9aa ML |
2032 | struct sp_port_config prev_config; |
2033 | ||
c33efc48 ML |
2034 | TRACE("%p, %p", port, config); |
2035 | ||
dec10e31 | 2036 | CHECK_OPEN_PORT(); |
823690ae ML |
2037 | |
2038 | if (!config) | |
c33efc48 | 2039 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2040 | |
e33ab9aa ML |
2041 | TRY(get_config(port, &data, &prev_config)); |
2042 | TRY(set_config(port, &data, config)); | |
74510d4b | 2043 | |
c33efc48 | 2044 | RETURN_OK(); |
74510d4b ML |
2045 | } |
2046 | ||
9b1502ef | 2047 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2048 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2049 | struct port_data data; \ |
e33ab9aa | 2050 | struct sp_port_config config; \ |
c33efc48 | 2051 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2052 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2053 | TRY(get_config(port, &data, &config)); \ |
2054 | config.x = x; \ | |
2055 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2056 | RETURN_OK(); \ |
9b1502ef | 2057 | } \ |
970f279a AJ |
2058 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2059 | type *x) { \ | |
00d8c56d | 2060 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2061 | if (!config) \ |
2062 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2063 | *x = config->x; \ | |
2064 | RETURN_OK(); \ | |
2065 | } \ | |
970f279a AJ |
2066 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2067 | type x) { \ | |
9b1502ef ML |
2068 | TRACE("%p, %d", config, x); \ |
2069 | if (!config) \ | |
2070 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2071 | config->x = x; \ | |
2072 | RETURN_OK(); \ | |
9069c2fb ML |
2073 | } |
2074 | ||
9b1502ef ML |
2075 | CREATE_ACCESSORS(baudrate, int) |
2076 | CREATE_ACCESSORS(bits, int) | |
2077 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2078 | CREATE_ACCESSORS(stopbits, int) | |
2079 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2080 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2081 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2082 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2083 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2084 | ||
970f279a AJ |
2085 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2086 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2087 | { |
9b1502ef ML |
2088 | if (!config) |
2089 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2090 | |
2091 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2092 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2093 | |
e33ab9aa | 2094 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2095 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2096 | else |
9b1502ef | 2097 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2098 | |
2099 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2100 | config->rts = SP_RTS_FLOW_CONTROL; |
2101 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2102 | } else { |
9b1502ef ML |
2103 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2104 | config->rts = SP_RTS_ON; | |
2105 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2106 | } |
2107 | ||
2108 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2109 | config->dtr = SP_DTR_FLOW_CONTROL; |
2110 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2111 | } else { |
9b1502ef ML |
2112 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2113 | config->dtr = SP_DTR_ON; | |
2114 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2115 | } |
2116 | ||
9b1502ef ML |
2117 | RETURN_OK(); |
2118 | } | |
2119 | ||
970f279a AJ |
2120 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2121 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2122 | { |
2123 | struct port_data data; | |
2124 | struct sp_port_config config; | |
2125 | ||
2126 | TRACE("%p, %d", port, flowcontrol); | |
2127 | ||
2128 | CHECK_OPEN_PORT(); | |
2129 | ||
2130 | TRY(get_config(port, &data, &config)); | |
2131 | ||
2132 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2133 | ||
e33ab9aa ML |
2134 | TRY(set_config(port, &data, &config)); |
2135 | ||
c33efc48 | 2136 | RETURN_OK(); |
e33ab9aa ML |
2137 | } |
2138 | ||
970f279a AJ |
2139 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2140 | enum sp_signal *signals) | |
8cf7c697 | 2141 | { |
c33efc48 ML |
2142 | TRACE("%p, %p", port, signals); |
2143 | ||
dec10e31 | 2144 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2145 | |
2146 | if (!signals) | |
c33efc48 | 2147 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2148 | |
7890cef6 | 2149 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2150 | |
8cf7c697 ML |
2151 | *signals = 0; |
2152 | #ifdef _WIN32 | |
2153 | DWORD bits; | |
2154 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2155 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2156 | if (bits & MS_CTS_ON) |
2157 | *signals |= SP_SIG_CTS; | |
2158 | if (bits & MS_DSR_ON) | |
2159 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2160 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2161 | *signals |= SP_SIG_DCD; |
2162 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2163 | *signals |= SP_SIG_RI; |
2164 | #else | |
2165 | int bits; | |
2166 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2167 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2168 | if (bits & TIOCM_CTS) |
2169 | *signals |= SP_SIG_CTS; | |
2170 | if (bits & TIOCM_DSR) | |
2171 | *signals |= SP_SIG_DSR; | |
2172 | if (bits & TIOCM_CAR) | |
2173 | *signals |= SP_SIG_DCD; | |
2174 | if (bits & TIOCM_RNG) | |
2175 | *signals |= SP_SIG_RI; | |
2176 | #endif | |
c33efc48 | 2177 | RETURN_OK(); |
8cf7c697 ML |
2178 | } |
2179 | ||
970f279a | 2180 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2181 | { |
c33efc48 ML |
2182 | TRACE("%p", port); |
2183 | ||
dec10e31 | 2184 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2185 | #ifdef _WIN32 |
2186 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2187 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2188 | #else |
2189 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2190 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2191 | #endif |
2192 | ||
c33efc48 | 2193 | RETURN_OK(); |
90cc3ee6 ML |
2194 | } |
2195 | ||
970f279a | 2196 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2197 | { |
c33efc48 ML |
2198 | TRACE("%p", port); |
2199 | ||
dec10e31 | 2200 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2201 | #ifdef _WIN32 |
2202 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2203 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2204 | #else |
2205 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2206 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2207 | #endif |
2208 | ||
c33efc48 | 2209 | RETURN_OK(); |
90cc3ee6 ML |
2210 | } |
2211 | ||
970f279a | 2212 | SP_API int sp_last_error_code(void) |
74510d4b | 2213 | { |
7890cef6 | 2214 | TRACE_VOID(); |
74510d4b | 2215 | #ifdef _WIN32 |
9caa2e86 | 2216 | RETURN_INT(GetLastError()); |
74510d4b | 2217 | #else |
9caa2e86 | 2218 | RETURN_INT(errno); |
74510d4b ML |
2219 | #endif |
2220 | } | |
2221 | ||
970f279a | 2222 | SP_API char *sp_last_error_message(void) |
74510d4b | 2223 | { |
7890cef6 | 2224 | TRACE_VOID(); |
c33efc48 | 2225 | |
74510d4b ML |
2226 | #ifdef _WIN32 |
2227 | LPVOID message; | |
2228 | DWORD error = GetLastError(); | |
2229 | ||
2230 | FormatMessage( | |
2231 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2232 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2233 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2234 | NULL, | |
2235 | error, | |
2236 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2237 | (LPTSTR) &message, | |
2238 | 0, NULL ); | |
2239 | ||
9caa2e86 | 2240 | RETURN_STRING(message); |
74510d4b | 2241 | #else |
9caa2e86 | 2242 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2243 | #endif |
2244 | } | |
2245 | ||
970f279a | 2246 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2247 | { |
c33efc48 ML |
2248 | TRACE("%s", message); |
2249 | ||
74510d4b ML |
2250 | #ifdef _WIN32 |
2251 | LocalFree(message); | |
64eec30d ML |
2252 | #else |
2253 | (void)message; | |
74510d4b | 2254 | #endif |
c33efc48 ML |
2255 | |
2256 | RETURN(); | |
74510d4b | 2257 | } |
863b35e6 | 2258 | |
970f279a | 2259 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2260 | { |
c33efc48 ML |
2261 | TRACE("%p", handler); |
2262 | ||
863b35e6 | 2263 | sp_debug_handler = handler; |
c33efc48 ML |
2264 | |
2265 | RETURN(); | |
863b35e6 ML |
2266 | } |
2267 | ||
970f279a | 2268 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2269 | { |
2270 | va_list args; | |
2271 | va_start(args, format); | |
2272 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2273 | fputs("sp: ", stderr); |
863b35e6 ML |
2274 | vfprintf(stderr, format, args); |
2275 | } | |
2276 | va_end(args); | |
2277 | } | |
524b0e14 | 2278 | |
970f279a | 2279 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2280 | { |
2281 | return SP_PACKAGE_VERSION_MAJOR; | |
2282 | } | |
2283 | ||
970f279a | 2284 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2285 | { |
2286 | return SP_PACKAGE_VERSION_MINOR; | |
2287 | } | |
2288 | ||
970f279a | 2289 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2290 | { |
2291 | return SP_PACKAGE_VERSION_MICRO; | |
2292 | } | |
2293 | ||
970f279a | 2294 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2295 | { |
2296 | return SP_PACKAGE_VERSION_STRING; | |
2297 | } | |
2298 | ||
970f279a | 2299 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2300 | { |
2301 | return SP_LIB_VERSION_CURRENT; | |
2302 | } | |
2303 | ||
970f279a | 2304 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2305 | { |
2306 | return SP_LIB_VERSION_REVISION; | |
2307 | } | |
2308 | ||
970f279a | 2309 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2310 | { |
2311 | return SP_LIB_VERSION_AGE; | |
2312 | } | |
2313 | ||
970f279a | 2314 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2315 | { |
2316 | return SP_LIB_VERSION_STRING; | |
2317 | } | |
2318 | ||
2319 | /** @} */ |