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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 | |
ea667be7 ML |
73 | DEBUG("Building structure for port %s", portname); |
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 | ||
123 | RETURN_VALUE("%s", port->name); | |
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 | ||
133 | RETURN_VALUE("%s", port->description); | |
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 | ||
143 | RETURN_VALUE("%d", port->transport); | |
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 | ||
189 | RETURN_VALUE("%s", port->usb_manufacturer); | |
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 | ||
199 | RETURN_VALUE("%s", port->usb_product); | |
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 | ||
209 | RETURN_VALUE("%s", port->usb_serial); | |
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 | ||
220 | RETURN_VALUE("%s", port->bluetooth_address); | |
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 | ||
c33efc48 | 260 | RETURN_VALUE("%p", 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 | ||
e3dcf906 | 405 | if (flags > (SP_MODE_READ | SP_MODE_WRITE)) |
dec10e31 | 406 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 407 | |
ea667be7 ML |
408 | DEBUG("Opening port %s", port->name); |
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. */ |
a036341b | 482 | if (flags & (SP_MODE_READ | SP_MODE_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 | |
ea667be7 ML |
567 | DEBUG("Closing port %s", port->name); |
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 ML |
605 | |
606 | DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name); | |
607 | ||
74510d4b | 608 | #ifdef _WIN32 |
fd8fd11a ML |
609 | DWORD flags = 0; |
610 | if (buffers & SP_BUF_INPUT) | |
611 | flags |= PURGE_RXCLEAR; | |
612 | if (buffers & SP_BUF_OUTPUT) | |
613 | flags |= PURGE_TXCLEAR; | |
614 | ||
74510d4b | 615 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 616 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 617 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 618 | #else |
fd8fd11a ML |
619 | int flags = 0; |
620 | if (buffers & SP_BUF_BOTH) | |
621 | flags = TCIOFLUSH; | |
622 | else if (buffers & SP_BUF_INPUT) | |
623 | flags = TCIFLUSH; | |
82f424e6 | 624 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
625 | flags = TCOFLUSH; |
626 | ||
74510d4b | 627 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 628 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 629 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 630 | #endif |
c33efc48 | 631 | RETURN_OK(); |
74510d4b ML |
632 | } |
633 | ||
970f279a | 634 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 635 | { |
c33efc48 ML |
636 | TRACE("%p", port); |
637 | ||
dec10e31 | 638 | CHECK_OPEN_PORT(); |
69a3739c | 639 | |
ea667be7 ML |
640 | DEBUG("Draining port %s", port->name); |
641 | ||
69a3739c ML |
642 | #ifdef _WIN32 |
643 | /* Returns non-zero upon success, 0 upon failure. */ | |
644 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 645 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 646 | RETURN_OK(); |
69a3739c | 647 | #else |
2c827b21 ML |
648 | int result; |
649 | while (1) { | |
33fd8804 ML |
650 | #ifdef __ANDROID__ |
651 | int arg = 1; | |
652 | result = ioctl(port->fd, TCSBRK, &arg); | |
653 | #else | |
2c827b21 | 654 | result = tcdrain(port->fd); |
33fd8804 | 655 | #endif |
2c827b21 ML |
656 | if (result < 0) { |
657 | if (errno == EINTR) { | |
658 | DEBUG("tcdrain() was interrupted"); | |
659 | continue; | |
660 | } else { | |
661 | RETURN_FAIL("tcdrain() failed"); | |
662 | } | |
663 | } else { | |
664 | RETURN_OK(); | |
665 | } | |
666 | } | |
69a3739c | 667 | #endif |
69a3739c ML |
668 | } |
669 | ||
970f279a AJ |
670 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
671 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
672 | { |
673 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
674 | ||
675 | CHECK_OPEN_PORT(); | |
676 | ||
677 | if (!buf) | |
678 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
679 | ||
680 | if (timeout) | |
681 | DEBUG("Writing %d bytes to port %s, timeout %d ms", count, port->name, timeout); | |
682 | else | |
683 | DEBUG("Writing %d bytes to port %s, no timeout", count, port->name); | |
684 | ||
685 | if (count == 0) | |
686 | RETURN_VALUE("0", 0); | |
687 | ||
688 | #ifdef _WIN32 | |
689 | DWORD bytes_written = 0; | |
690 | BOOL result; | |
691 | ||
692 | /* Wait for previous non-blocking write to complete, if any. */ | |
693 | if (port->writing) { | |
694 | DEBUG("Waiting for previous write to complete"); | |
695 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
696 | port->writing = 0; | |
697 | if (!result) | |
698 | RETURN_FAIL("Previous write failed to complete"); | |
699 | DEBUG("Previous write completed"); | |
700 | } | |
701 | ||
702 | /* Set timeout. */ | |
703 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
704 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
705 | RETURN_FAIL("SetCommTimeouts() failed"); | |
706 | ||
707 | /* Start write. */ | |
708 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
709 | if (GetLastError() == ERROR_IO_PENDING) { | |
710 | DEBUG("Waiting for write to complete"); | |
711 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
712 | DEBUG("Write completed, %d/%d bytes written", bytes_written, count); | |
713 | RETURN_VALUE("%d", bytes_written); | |
714 | } else { | |
715 | RETURN_FAIL("WriteFile() failed"); | |
716 | } | |
717 | } else { | |
718 | DEBUG("Write completed immediately"); | |
719 | RETURN_VALUE("%d", count); | |
720 | } | |
721 | #else | |
722 | size_t bytes_written = 0; | |
723 | unsigned char *ptr = (unsigned char *) buf; | |
724 | struct timeval start, delta, now, end = {0, 0}; | |
725 | fd_set fds; | |
726 | int result; | |
727 | ||
728 | if (timeout) { | |
729 | /* Get time at start of operation. */ | |
730 | gettimeofday(&start, NULL); | |
731 | /* Define duration of timeout. */ | |
732 | delta.tv_sec = timeout / 1000; | |
1b342042 | 733 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
734 | /* Calculate time at which we should give up. */ |
735 | timeradd(&start, &delta, &end); | |
736 | } | |
737 | ||
738 | /* Loop until we have written the requested number of bytes. */ | |
739 | while (bytes_written < count) | |
740 | { | |
741 | /* Wait until space is available. */ | |
742 | FD_ZERO(&fds); | |
743 | FD_SET(port->fd, &fds); | |
744 | if (timeout) { | |
745 | gettimeofday(&now, NULL); | |
746 | if (timercmp(&now, &end, >)) { | |
747 | DEBUG("write timed out"); | |
748 | RETURN_VALUE("%d", bytes_written); | |
749 | } | |
750 | timersub(&end, &now, &delta); | |
751 | } | |
752 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
753 | if (result < 0) { |
754 | if (errno == EINTR) { | |
755 | DEBUG("select() call was interrupted, repeating"); | |
756 | continue; | |
757 | } else { | |
758 | RETURN_FAIL("select() failed"); | |
759 | } | |
760 | } else if (result == 0) { | |
e3dcf906 ML |
761 | DEBUG("write timed out"); |
762 | RETURN_VALUE("%d", bytes_written); | |
763 | } | |
764 | ||
765 | /* Do write. */ | |
766 | result = write(port->fd, ptr, count - bytes_written); | |
767 | ||
768 | if (result < 0) { | |
769 | if (errno == EAGAIN) | |
770 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
771 | continue; | |
772 | else | |
773 | /* This is an actual failure. */ | |
774 | RETURN_FAIL("write() failed"); | |
775 | } | |
776 | ||
777 | bytes_written += result; | |
778 | ptr += result; | |
779 | } | |
780 | ||
781 | RETURN_VALUE("%d", bytes_written); | |
782 | #endif | |
783 | } | |
784 | ||
970f279a AJ |
785 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
786 | const void *buf, size_t count) | |
74510d4b | 787 | { |
c33efc48 ML |
788 | TRACE("%p, %p, %d", port, buf, count); |
789 | ||
dec10e31 | 790 | CHECK_OPEN_PORT(); |
74510d4b ML |
791 | |
792 | if (!buf) | |
c33efc48 | 793 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 794 | |
ea667be7 ML |
795 | DEBUG("Writing up to %d bytes to port %s", count, port->name); |
796 | ||
a3cb91f5 ML |
797 | if (count == 0) |
798 | RETURN_VALUE("0", 0); | |
799 | ||
74510d4b ML |
800 | #ifdef _WIN32 |
801 | DWORD written = 0; | |
0765af56 | 802 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 803 | |
e3dcf906 ML |
804 | /* Check whether previous write is complete. */ |
805 | if (port->writing) { | |
806 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
807 | DEBUG("Previous write completed"); | |
808 | port->writing = 0; | |
809 | } else { | |
810 | DEBUG("Previous write not complete"); | |
811 | /* Can't take a new write until the previous one finishes. */ | |
812 | RETURN_VALUE("0", 0); | |
a3cb91f5 | 813 | } |
e3dcf906 | 814 | } |
a3cb91f5 | 815 | |
e3dcf906 ML |
816 | /* Set timeout. */ |
817 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
818 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
819 | RETURN_FAIL("SetCommTimeouts() failed"); | |
820 | ||
821 | /* Keep writing data until the OS has to actually start an async IO for it. | |
822 | * At that point we know the buffer is full. */ | |
823 | while (written < count) | |
824 | { | |
825 | /* Copy first byte of user buffer. */ | |
826 | port->pending_byte = *ptr++; | |
827 | ||
828 | /* Start asynchronous write. */ | |
829 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
830 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
831 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
832 | DEBUG("Asynchronous write completed immediately"); | |
833 | port->writing = 0; | |
834 | written++; | |
835 | continue; | |
836 | } else { | |
837 | DEBUG("Asynchronous write running"); | |
838 | port->writing = 1; | |
839 | RETURN_VALUE("%d", ++written); | |
840 | } | |
a3cb91f5 | 841 | } else { |
e3dcf906 ML |
842 | /* Actual failure of some kind. */ |
843 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 844 | } |
e3dcf906 | 845 | } else { |
9af8cff3 | 846 | DEBUG("Single byte written immediately"); |
e3dcf906 | 847 | written++; |
a3cb91f5 ML |
848 | } |
849 | } | |
850 | ||
9af8cff3 | 851 | DEBUG("All bytes written immediately"); |
e3dcf906 | 852 | |
c33efc48 | 853 | RETURN_VALUE("%d", written); |
74510d4b ML |
854 | #else |
855 | /* Returns the number of bytes written, or -1 upon failure. */ | |
856 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 857 | |
74510d4b | 858 | if (written < 0) |
c33efc48 | 859 | RETURN_FAIL("write() failed"); |
74510d4b | 860 | else |
c33efc48 | 861 | RETURN_VALUE("%d", written); |
74510d4b ML |
862 | #endif |
863 | } | |
864 | ||
970f279a AJ |
865 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
866 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
867 | { |
868 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
869 | ||
870 | CHECK_OPEN_PORT(); | |
871 | ||
872 | if (!buf) | |
873 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
874 | ||
875 | if (timeout) | |
876 | DEBUG("Reading %d bytes from port %s, timeout %d ms", count, port->name, timeout); | |
877 | else | |
878 | DEBUG("Reading %d bytes from port %s, no timeout", count, port->name); | |
879 | ||
880 | if (count == 0) | |
881 | RETURN_VALUE("0", 0); | |
882 | ||
883 | #ifdef _WIN32 | |
884 | DWORD bytes_read = 0; | |
885 | ||
886 | /* Set timeout. */ | |
887 | port->timeouts.ReadIntervalTimeout = 0; | |
888 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
889 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
890 | RETURN_FAIL("SetCommTimeouts() failed"); | |
891 | ||
892 | /* Start read. */ | |
893 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
894 | if (GetLastError() == ERROR_IO_PENDING) { | |
895 | DEBUG("Waiting for read to complete"); | |
896 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
897 | DEBUG("Read completed, %d/%d bytes read", bytes_read, count); | |
e3dcf906 ML |
898 | } else { |
899 | RETURN_FAIL("ReadFile() failed"); | |
900 | } | |
901 | } else { | |
902 | DEBUG("Read completed immediately"); | |
6f1186aa ML |
903 | bytes_read = count; |
904 | } | |
905 | ||
906 | /* Start background operation for subsequent events. */ | |
907 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
908 | if (GetLastError() != ERROR_IO_PENDING) | |
909 | RETURN_FAIL("WaitCommEvent() failed"); | |
e3dcf906 | 910 | } |
6f1186aa ML |
911 | |
912 | RETURN_VALUE("%d", bytes_read); | |
913 | ||
e3dcf906 ML |
914 | #else |
915 | size_t bytes_read = 0; | |
916 | unsigned char *ptr = (unsigned char *) buf; | |
917 | struct timeval start, delta, now, end = {0, 0}; | |
918 | fd_set fds; | |
919 | int result; | |
920 | ||
921 | if (timeout) { | |
922 | /* Get time at start of operation. */ | |
923 | gettimeofday(&start, NULL); | |
924 | /* Define duration of timeout. */ | |
925 | delta.tv_sec = timeout / 1000; | |
1b342042 | 926 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
927 | /* Calculate time at which we should give up. */ |
928 | timeradd(&start, &delta, &end); | |
929 | } | |
930 | ||
931 | /* Loop until we have the requested number of bytes. */ | |
932 | while (bytes_read < count) | |
933 | { | |
934 | /* Wait until data is available. */ | |
935 | FD_ZERO(&fds); | |
936 | FD_SET(port->fd, &fds); | |
937 | if (timeout) { | |
938 | gettimeofday(&now, NULL); | |
939 | if (timercmp(&now, &end, >)) | |
940 | /* Timeout has expired. */ | |
941 | RETURN_VALUE("%d", bytes_read); | |
942 | timersub(&end, &now, &delta); | |
943 | } | |
944 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
945 | if (result < 0) { |
946 | if (errno == EINTR) { | |
947 | DEBUG("select() call was interrupted, repeating"); | |
948 | continue; | |
949 | } else { | |
950 | RETURN_FAIL("select() failed"); | |
951 | } | |
952 | } else if (result == 0) { | |
e3dcf906 ML |
953 | DEBUG("read timed out"); |
954 | RETURN_VALUE("%d", bytes_read); | |
955 | } | |
956 | ||
957 | /* Do read. */ | |
958 | result = read(port->fd, ptr, count - bytes_read); | |
959 | ||
960 | if (result < 0) { | |
961 | if (errno == EAGAIN) | |
962 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
963 | continue; | |
964 | else | |
965 | /* This is an actual failure. */ | |
966 | RETURN_FAIL("read() failed"); | |
967 | } | |
968 | ||
969 | bytes_read += result; | |
970 | ptr += result; | |
971 | } | |
972 | ||
973 | RETURN_VALUE("%d", bytes_read); | |
974 | #endif | |
975 | } | |
976 | ||
970f279a AJ |
977 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
978 | size_t count) | |
74510d4b | 979 | { |
c33efc48 ML |
980 | TRACE("%p, %p, %d", port, buf, count); |
981 | ||
dec10e31 | 982 | CHECK_OPEN_PORT(); |
74510d4b ML |
983 | |
984 | if (!buf) | |
c33efc48 | 985 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 986 | |
ea667be7 ML |
987 | DEBUG("Reading up to %d bytes from port %s", count, port->name); |
988 | ||
74510d4b | 989 | #ifdef _WIN32 |
e3dcf906 | 990 | DWORD bytes_read; |
f92f1f0c | 991 | |
e3dcf906 ML |
992 | /* Set timeout. */ |
993 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
994 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
995 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
996 | RETURN_FAIL("SetCommTimeouts() failed"); | |
997 | ||
998 | /* Do read. */ | |
999 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1000 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1001 | |
1002 | /* Get number of bytes read. */ | |
1622ef60 ML |
1003 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1004 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 1005 | |
6f1186aa ML |
1006 | if (bytes_read > 0) { |
1007 | /* Start background operation for subsequent events. */ | |
1008 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
1009 | if (GetLastError() != ERROR_IO_PENDING) | |
1010 | RETURN_FAIL("WaitCommEvent() failed"); | |
1011 | } | |
1012 | } | |
1013 | ||
c33efc48 | 1014 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1015 | #else |
1016 | ssize_t bytes_read; | |
f92f1f0c | 1017 | |
74510d4b | 1018 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1019 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1020 | if (errno == EAGAIN) |
1021 | /* No bytes available. */ | |
33d5ff47 ML |
1022 | bytes_read = 0; |
1023 | else | |
1024 | /* This is an actual failure. */ | |
1025 | RETURN_FAIL("read() failed"); | |
1026 | } | |
c33efc48 | 1027 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1028 | #endif |
1029 | } | |
1030 | ||
970f279a | 1031 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1032 | { |
1033 | TRACE("%p", port); | |
1034 | ||
1035 | CHECK_OPEN_PORT(); | |
1036 | ||
1037 | DEBUG("Checking input bytes waiting on port %s", port->name); | |
1038 | ||
1039 | #ifdef _WIN32 | |
1040 | DWORD errors; | |
1041 | COMSTAT comstat; | |
1042 | ||
1043 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1044 | RETURN_FAIL("ClearCommError() failed"); |
3353c22f ML |
1045 | RETURN_VALUE("%d", comstat.cbInQue); |
1046 | #else | |
1047 | int bytes_waiting; | |
1048 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1049 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
1050 | RETURN_VALUE("%d", bytes_waiting); | |
1051 | #endif | |
1052 | } | |
1053 | ||
970f279a | 1054 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1055 | { |
1056 | TRACE("%p", port); | |
1057 | ||
1058 | CHECK_OPEN_PORT(); | |
1059 | ||
1060 | DEBUG("Checking output bytes waiting on port %s", port->name); | |
1061 | ||
1062 | #ifdef _WIN32 | |
1063 | DWORD errors; | |
1064 | COMSTAT comstat; | |
1065 | ||
1066 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1067 | RETURN_FAIL("ClearCommError() failed"); |
3353c22f ML |
1068 | RETURN_VALUE("%d", comstat.cbOutQue); |
1069 | #else | |
1070 | int bytes_waiting; | |
1071 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1072 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
1073 | RETURN_VALUE("%d", bytes_waiting); | |
1074 | #endif | |
1075 | } | |
1076 | ||
970f279a | 1077 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1078 | { |
1079 | struct sp_event_set *result; | |
1080 | ||
1081 | TRACE("%p", result_ptr); | |
1082 | ||
1083 | if (!result_ptr) | |
1084 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1085 | ||
1086 | *result_ptr = NULL; | |
1087 | ||
1088 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1089 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1090 | ||
1091 | memset(result, 0, sizeof(struct sp_event_set)); | |
1092 | ||
1093 | *result_ptr = result; | |
1094 | ||
1095 | RETURN_OK(); | |
1096 | } | |
1097 | ||
1098 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1099 | event_handle handle, enum sp_event mask) | |
1100 | { | |
1101 | void *new_handles; | |
1102 | enum sp_event *new_masks; | |
1103 | ||
1104 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1105 | ||
1106 | if (!(new_handles = realloc(event_set->handles, | |
1107 | sizeof(event_handle) * (event_set->count + 1)))) | |
1108 | RETURN_ERROR(SP_ERR_MEM, "handle array realloc() failed"); | |
1109 | ||
1110 | if (!(new_masks = realloc(event_set->masks, | |
1111 | sizeof(enum sp_event) * (event_set->count + 1)))) | |
1112 | RETURN_ERROR(SP_ERR_MEM, "mask array realloc() failed"); | |
1113 | ||
1114 | event_set->handles = new_handles; | |
1115 | event_set->masks = new_masks; | |
1116 | ||
1117 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1118 | event_set->masks[event_set->count] = mask; | |
1119 | ||
1120 | event_set->count++; | |
1121 | ||
1122 | RETURN_OK(); | |
1123 | } | |
1124 | ||
970f279a | 1125 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1126 | const struct sp_port *port, enum sp_event mask) |
1127 | { | |
1128 | TRACE("%p, %p, %d", event_set, port, mask); | |
1129 | ||
1130 | if (!event_set) | |
1131 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1132 | ||
1133 | if (!port) | |
1134 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1135 | ||
1136 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1137 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1138 | ||
1139 | if (!mask) | |
1140 | RETURN_OK(); | |
1141 | ||
1142 | #ifdef _WIN32 | |
1143 | enum sp_event handle_mask; | |
1144 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1145 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1146 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1147 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1148 | #else | |
1149 | TRY(add_handle(event_set, port->fd, mask)); | |
1150 | #endif | |
1151 | ||
1152 | RETURN_OK(); | |
1153 | } | |
1154 | ||
970f279a | 1155 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1156 | { |
1157 | TRACE("%p", event_set); | |
1158 | ||
1159 | if (!event_set) { | |
1160 | DEBUG("Null event set"); | |
1161 | RETURN(); | |
1162 | } | |
1163 | ||
1164 | DEBUG("Freeing event set"); | |
1165 | ||
1166 | if (event_set->handles) | |
1167 | free(event_set->handles); | |
1168 | if (event_set->masks) | |
1169 | free(event_set->masks); | |
1170 | ||
1171 | free(event_set); | |
1172 | ||
1173 | RETURN(); | |
1174 | } | |
1175 | ||
970f279a AJ |
1176 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1177 | unsigned int timeout) | |
6f1186aa ML |
1178 | { |
1179 | TRACE("%p, %d", event_set, timeout); | |
1180 | ||
1181 | if (!event_set) | |
1182 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1183 | ||
1184 | #ifdef _WIN32 | |
1185 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1186 | timeout ? timeout : INFINITE) == WAIT_FAILED) | |
1187 | RETURN_FAIL("WaitForMultipleObjects() failed"); | |
1188 | ||
1189 | RETURN_OK(); | |
1190 | #else | |
1191 | struct timeval start, delta, now, end = {0, 0}; | |
1192 | int result, timeout_remaining; | |
1193 | struct pollfd *pollfds; | |
1194 | unsigned int i; | |
1195 | ||
1196 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1197 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1198 | ||
1199 | for (i = 0; i < event_set->count; i++) { | |
1200 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1201 | pollfds[i].events = 0; | |
1202 | pollfds[i].revents = 0; | |
1203 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1204 | pollfds[i].events |= POLLIN; | |
1205 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1206 | pollfds[i].events |= POLLOUT; | |
1207 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1208 | pollfds[i].events |= POLLERR; | |
1209 | } | |
1210 | ||
1211 | if (timeout) { | |
1212 | /* Get time at start of operation. */ | |
1213 | gettimeofday(&start, NULL); | |
1214 | /* Define duration of timeout. */ | |
1215 | delta.tv_sec = timeout / 1000; | |
1216 | delta.tv_usec = (timeout % 1000) * 1000; | |
1217 | /* Calculate time at which we should give up. */ | |
1218 | timeradd(&start, &delta, &end); | |
1219 | } | |
1220 | ||
1221 | /* Loop until an event occurs. */ | |
1222 | while (1) | |
1223 | { | |
1224 | if (timeout) { | |
1225 | gettimeofday(&now, NULL); | |
1226 | if (timercmp(&now, &end, >)) { | |
1227 | DEBUG("wait timed out"); | |
1228 | break; | |
1229 | } | |
1230 | timersub(&end, &now, &delta); | |
1231 | timeout_remaining = delta.tv_sec * 1000 + delta.tv_usec / 1000; | |
1232 | } | |
1233 | ||
1234 | result = poll(pollfds, event_set->count, timeout ? timeout_remaining : -1); | |
1235 | ||
1236 | if (result < 0) { | |
1237 | if (errno == EINTR) { | |
1238 | DEBUG("poll() call was interrupted, repeating"); | |
1239 | continue; | |
1240 | } else { | |
1241 | free(pollfds); | |
1242 | RETURN_FAIL("poll() failed"); | |
1243 | } | |
1244 | } else if (result == 0) { | |
1245 | DEBUG("poll() timed out"); | |
1246 | break; | |
1247 | } else { | |
1248 | DEBUG("poll() completed"); | |
1249 | break; | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | free(pollfds); | |
1254 | RETURN_OK(); | |
1255 | #endif | |
1256 | } | |
1257 | ||
5cea279a | 1258 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1259 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1260 | { | |
1261 | void *data; | |
1262 | ||
c33efc48 ML |
1263 | TRACE("%d, %p", fd, baudrate); |
1264 | ||
ea667be7 ML |
1265 | DEBUG("Getting baud rate"); |
1266 | ||
7a6d2196 | 1267 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1268 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1269 | |
8d43110a ML |
1270 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1271 | free(data); | |
c33efc48 | 1272 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1273 | } |
7a6d2196 ML |
1274 | |
1275 | *baudrate = get_termios_speed(data); | |
1276 | ||
8d43110a ML |
1277 | free(data); |
1278 | ||
c33efc48 | 1279 | RETURN_OK(); |
7a6d2196 ML |
1280 | } |
1281 | ||
1282 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1283 | { | |
1284 | void *data; | |
1285 | ||
c33efc48 ML |
1286 | TRACE("%d, %d", fd, baudrate); |
1287 | ||
ea667be7 ML |
1288 | DEBUG("Getting baud rate"); |
1289 | ||
7a6d2196 | 1290 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1291 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1292 | |
8d43110a ML |
1293 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1294 | free(data); | |
c33efc48 | 1295 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1296 | } |
7a6d2196 | 1297 | |
ea667be7 ML |
1298 | DEBUG("Setting baud rate"); |
1299 | ||
7a6d2196 ML |
1300 | set_termios_speed(data, baudrate); |
1301 | ||
8d43110a ML |
1302 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1303 | free(data); | |
c33efc48 | 1304 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
1305 | } |
1306 | ||
1307 | free(data); | |
7a6d2196 | 1308 | |
c33efc48 | 1309 | RETURN_OK(); |
7a6d2196 | 1310 | } |
5cea279a | 1311 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1312 | |
1313 | #ifdef USE_TERMIOX | |
bd791fe1 | 1314 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1315 | { |
bd791fe1 | 1316 | void *termx; |
40978c2b | 1317 | |
bd791fe1 | 1318 | TRACE("%d, %p", fd, data); |
c33efc48 | 1319 | |
ea667be7 ML |
1320 | DEBUG("Getting advanced flow control"); |
1321 | ||
bd791fe1 | 1322 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1323 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1324 | |
bd791fe1 ML |
1325 | if (ioctl(fd, TCGETX, termx) < 0) { |
1326 | free(termx); | |
c33efc48 | 1327 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1328 | } |
40978c2b | 1329 | |
bd791fe1 ML |
1330 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1331 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1332 | |
bd791fe1 | 1333 | free(termx); |
8d43110a | 1334 | |
c33efc48 | 1335 | RETURN_OK(); |
40978c2b ML |
1336 | } |
1337 | ||
bd791fe1 | 1338 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1339 | { |
bd791fe1 | 1340 | void *termx; |
40978c2b | 1341 | |
bd791fe1 | 1342 | TRACE("%d, %p", fd, data); |
c33efc48 | 1343 | |
ea667be7 ML |
1344 | DEBUG("Getting advanced flow control"); |
1345 | ||
bd791fe1 | 1346 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1347 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1348 | |
bd791fe1 ML |
1349 | if (ioctl(fd, TCGETX, termx) < 0) { |
1350 | free(termx); | |
c33efc48 | 1351 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1352 | } |
40978c2b | 1353 | |
ea667be7 ML |
1354 | DEBUG("Setting advanced flow control"); |
1355 | ||
bd791fe1 ML |
1356 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1357 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1358 | |
bd791fe1 ML |
1359 | if (ioctl(fd, TCSETX, termx) < 0) { |
1360 | free(termx); | |
c33efc48 | 1361 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
1362 | } |
1363 | ||
bd791fe1 | 1364 | free(termx); |
40978c2b | 1365 | |
c33efc48 | 1366 | RETURN_OK(); |
40978c2b ML |
1367 | } |
1368 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1369 | |
eb6ed20f ML |
1370 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1371 | struct sp_port_config *config) | |
8094e4a0 | 1372 | { |
da2748bf | 1373 | unsigned int i; |
cbf628c7 | 1374 | |
c33efc48 ML |
1375 | TRACE("%p, %p, %p", port, data, config); |
1376 | ||
ea667be7 ML |
1377 | DEBUG("Getting configuration for port %s", port->name); |
1378 | ||
8094e4a0 | 1379 | #ifdef _WIN32 |
e33ab9aa | 1380 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1381 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1382 | |
067417af | 1383 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1384 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1385 | config->baudrate = std_baudrates[i].value; |
1386 | break; | |
1387 | } | |
1388 | } | |
1389 | ||
1390 | if (i == NUM_STD_BAUDRATES) | |
1391 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1392 | config->baudrate = data->dcb.BaudRate; |
067417af | 1393 | |
e33ab9aa | 1394 | config->bits = data->dcb.ByteSize; |
067417af | 1395 | |
e33ab9aa ML |
1396 | if (data->dcb.fParity) |
1397 | switch (data->dcb.Parity) { | |
067417af ML |
1398 | case NOPARITY: |
1399 | config->parity = SP_PARITY_NONE; | |
1400 | break; | |
e432ce60 ML |
1401 | case ODDPARITY: |
1402 | config->parity = SP_PARITY_ODD; | |
1403 | break; | |
067417af ML |
1404 | case EVENPARITY: |
1405 | config->parity = SP_PARITY_EVEN; | |
1406 | break; | |
e432ce60 ML |
1407 | case MARKPARITY: |
1408 | config->parity = SP_PARITY_MARK; | |
1409 | break; | |
1410 | case SPACEPARITY: | |
1411 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1412 | break; |
1413 | default: | |
1414 | config->parity = -1; | |
1415 | } | |
1416 | else | |
1417 | config->parity = SP_PARITY_NONE; | |
1418 | ||
e33ab9aa | 1419 | switch (data->dcb.StopBits) { |
067417af ML |
1420 | case ONESTOPBIT: |
1421 | config->stopbits = 1; | |
1422 | break; | |
1423 | case TWOSTOPBITS: | |
1424 | config->stopbits = 2; | |
1425 | break; | |
1426 | default: | |
1427 | config->stopbits = -1; | |
1428 | } | |
1429 | ||
e33ab9aa | 1430 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1431 | case RTS_CONTROL_DISABLE: |
1432 | config->rts = SP_RTS_OFF; | |
1433 | break; | |
1434 | case RTS_CONTROL_ENABLE: | |
1435 | config->rts = SP_RTS_ON; | |
1436 | break; | |
1437 | case RTS_CONTROL_HANDSHAKE: | |
1438 | config->rts = SP_RTS_FLOW_CONTROL; | |
1439 | break; | |
1440 | default: | |
1441 | config->rts = -1; | |
067417af ML |
1442 | } |
1443 | ||
e33ab9aa | 1444 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1445 | |
e33ab9aa | 1446 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1447 | case DTR_CONTROL_DISABLE: |
1448 | config->dtr = SP_DTR_OFF; | |
1449 | break; | |
1450 | case DTR_CONTROL_ENABLE: | |
1451 | config->dtr = SP_DTR_ON; | |
1452 | break; | |
1453 | case DTR_CONTROL_HANDSHAKE: | |
1454 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1455 | break; | |
1456 | default: | |
1457 | config->dtr = -1; | |
067417af ML |
1458 | } |
1459 | ||
e33ab9aa ML |
1460 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1461 | ||
c6754b45 ML |
1462 | if (data->dcb.fInX) { |
1463 | if (data->dcb.fOutX) | |
1464 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1465 | else | |
1466 | config->xon_xoff = SP_XONXOFF_IN; | |
1467 | } else { | |
1468 | if (data->dcb.fOutX) | |
1469 | config->xon_xoff = SP_XONXOFF_OUT; | |
1470 | else | |
1471 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1472 | } | |
1473 | ||
e33ab9aa ML |
1474 | #else // !_WIN32 |
1475 | ||
1476 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1477 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1478 | |
1479 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1480 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1481 | |
1482 | #ifdef USE_TERMIOX | |
bd791fe1 | 1483 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1484 | |
1485 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1486 | data->termiox_supported = 0; | |
1487 | else if (ret < 0) | |
c33efc48 | 1488 | RETURN_CODEVAL(ret); |
68ec29db ML |
1489 | else |
1490 | data->termiox_supported = 1; | |
1491 | #else | |
1492 | data->termiox_supported = 0; | |
40978c2b ML |
1493 | #endif |
1494 | ||
067417af | 1495 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1496 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1497 | config->baudrate = std_baudrates[i].value; |
1498 | break; | |
1499 | } | |
1500 | } | |
1501 | ||
31b3a8f5 MH |
1502 | if (i == NUM_STD_BAUDRATES) { |
1503 | #ifdef __APPLE__ | |
1504 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1505 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1506 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1507 | #else |
067417af | 1508 | config->baudrate = -1; |
31b3a8f5 MH |
1509 | #endif |
1510 | } | |
067417af | 1511 | |
e33ab9aa | 1512 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1513 | case CS8: |
1514 | config->bits = 8; | |
1515 | break; | |
1516 | case CS7: | |
1517 | config->bits = 7; | |
1518 | break; | |
1519 | case CS6: | |
1520 | config->bits = 6; | |
1521 | break; | |
1522 | case CS5: | |
1523 | config->bits = 5; | |
1524 | break; | |
1525 | default: | |
1526 | config->bits = -1; | |
1527 | } | |
1528 | ||
e33ab9aa | 1529 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1530 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1531 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1532 | config->parity = -1; |
c3e05092 | 1533 | #ifdef CMSPAR |
e432ce60 ML |
1534 | else if (data->term.c_cflag & CMSPAR) |
1535 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1536 | #endif |
067417af | 1537 | else |
e33ab9aa | 1538 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1539 | |
e33ab9aa | 1540 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1541 | |
e33ab9aa | 1542 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1543 | config->rts = SP_RTS_FLOW_CONTROL; |
1544 | config->cts = SP_CTS_FLOW_CONTROL; | |
1545 | } else { | |
bd791fe1 | 1546 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1547 | config->rts = SP_RTS_FLOW_CONTROL; |
1548 | else | |
1549 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1550 | ||
bd791fe1 | 1551 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1552 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1553 | } |
1554 | ||
bd791fe1 | 1555 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1556 | config->dtr = SP_DTR_FLOW_CONTROL; |
1557 | else | |
1558 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1559 | ||
bd791fe1 | 1560 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1561 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1562 | |
e29b93a5 ML |
1563 | if (data->term.c_iflag & IXOFF) { |
1564 | if (data->term.c_iflag & IXON) | |
1565 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1566 | else | |
1567 | config->xon_xoff = SP_XONXOFF_IN; | |
1568 | } else { | |
1569 | if (data->term.c_iflag & IXON) | |
1570 | config->xon_xoff = SP_XONXOFF_OUT; | |
1571 | else | |
1572 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1573 | } | |
067417af ML |
1574 | #endif |
1575 | ||
c33efc48 | 1576 | RETURN_OK(); |
067417af ML |
1577 | } |
1578 | ||
7a6d2196 | 1579 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1580 | const struct sp_port_config *config) |
18fc2dd1 | 1581 | { |
e33ab9aa | 1582 | unsigned int i; |
31b3a8f5 MH |
1583 | #ifdef __APPLE__ |
1584 | BAUD_TYPE baud_nonstd; | |
1585 | ||
1586 | baud_nonstd = B0; | |
1587 | #endif | |
5cea279a | 1588 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1589 | int baud_nonstd = 0; |
1590 | #endif | |
18fc2dd1 | 1591 | |
c33efc48 ML |
1592 | TRACE("%p, %p, %p", port, data, config); |
1593 | ||
ea667be7 ML |
1594 | DEBUG("Setting configuration for port %s", port->name); |
1595 | ||
e33ab9aa | 1596 | #ifdef _WIN32 |
eac329d2 | 1597 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1598 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1599 | if (config->baudrate == std_baudrates[i].value) { | |
1600 | data->dcb.BaudRate = std_baudrates[i].index; | |
1601 | break; | |
1602 | } | |
1603 | } | |
18fc2dd1 | 1604 | |
e33ab9aa ML |
1605 | if (i == NUM_STD_BAUDRATES) |
1606 | data->dcb.BaudRate = config->baudrate; | |
1607 | } | |
18fc2dd1 | 1608 | |
e33ab9aa ML |
1609 | if (config->bits >= 0) |
1610 | data->dcb.ByteSize = config->bits; | |
1611 | ||
1612 | if (config->parity >= 0) { | |
1613 | switch (config->parity) { | |
e33ab9aa ML |
1614 | case SP_PARITY_NONE: |
1615 | data->dcb.Parity = NOPARITY; | |
1616 | break; | |
e432ce60 ML |
1617 | case SP_PARITY_ODD: |
1618 | data->dcb.Parity = ODDPARITY; | |
1619 | break; | |
e33ab9aa ML |
1620 | case SP_PARITY_EVEN: |
1621 | data->dcb.Parity = EVENPARITY; | |
1622 | break; | |
e432ce60 ML |
1623 | case SP_PARITY_MARK: |
1624 | data->dcb.Parity = MARKPARITY; | |
1625 | break; | |
1626 | case SP_PARITY_SPACE: | |
1627 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1628 | break; |
1629 | default: | |
c33efc48 | 1630 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1631 | } |
18fc2dd1 ML |
1632 | } |
1633 | ||
e33ab9aa ML |
1634 | if (config->stopbits >= 0) { |
1635 | switch (config->stopbits) { | |
1636 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1637 | case 1: | |
1638 | data->dcb.StopBits = ONESTOPBIT; | |
1639 | break; | |
1640 | case 2: | |
1641 | data->dcb.StopBits = TWOSTOPBITS; | |
1642 | break; | |
1643 | default: | |
c33efc48 | 1644 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1645 | } |
1646 | } | |
1647 | ||
1648 | if (config->rts >= 0) { | |
1649 | switch (config->rts) { | |
1650 | case SP_RTS_OFF: | |
1651 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1652 | break; | |
1653 | case SP_RTS_ON: | |
1654 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1655 | break; | |
1656 | case SP_RTS_FLOW_CONTROL: | |
1657 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1658 | break; | |
1659 | default: | |
c33efc48 | 1660 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1661 | } |
1662 | } | |
1663 | ||
1664 | if (config->cts >= 0) { | |
1665 | switch (config->cts) { | |
1666 | case SP_CTS_IGNORE: | |
1667 | data->dcb.fOutxCtsFlow = FALSE; | |
1668 | break; | |
1669 | case SP_CTS_FLOW_CONTROL: | |
1670 | data->dcb.fOutxCtsFlow = TRUE; | |
1671 | break; | |
1672 | default: | |
c33efc48 | 1673 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1674 | } |
1675 | } | |
1676 | ||
1677 | if (config->dtr >= 0) { | |
1678 | switch (config->dtr) { | |
1679 | case SP_DTR_OFF: | |
1680 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1681 | break; | |
1682 | case SP_DTR_ON: | |
1683 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1684 | break; | |
1685 | case SP_DTR_FLOW_CONTROL: | |
1686 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1687 | break; | |
1688 | default: | |
c33efc48 | 1689 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1690 | } |
1691 | } | |
1692 | ||
1693 | if (config->dsr >= 0) { | |
1694 | switch (config->dsr) { | |
1695 | case SP_DSR_IGNORE: | |
1696 | data->dcb.fOutxDsrFlow = FALSE; | |
1697 | break; | |
1698 | case SP_DSR_FLOW_CONTROL: | |
1699 | data->dcb.fOutxDsrFlow = TRUE; | |
1700 | break; | |
1701 | default: | |
c33efc48 | 1702 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1703 | } |
18fc2dd1 ML |
1704 | } |
1705 | ||
e33ab9aa ML |
1706 | if (config->xon_xoff >= 0) { |
1707 | switch (config->xon_xoff) { | |
1708 | case SP_XONXOFF_DISABLED: | |
1709 | data->dcb.fInX = FALSE; | |
1710 | data->dcb.fOutX = FALSE; | |
1711 | break; | |
1712 | case SP_XONXOFF_IN: | |
1713 | data->dcb.fInX = TRUE; | |
1714 | data->dcb.fOutX = FALSE; | |
1715 | break; | |
1716 | case SP_XONXOFF_OUT: | |
1717 | data->dcb.fInX = FALSE; | |
1718 | data->dcb.fOutX = TRUE; | |
1719 | break; | |
1720 | case SP_XONXOFF_INOUT: | |
1721 | data->dcb.fInX = TRUE; | |
1722 | data->dcb.fOutX = TRUE; | |
1723 | break; | |
1724 | default: | |
c33efc48 | 1725 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1726 | } |
1727 | } | |
1728 | ||
1729 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1730 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1731 | |
31b3a8f5 | 1732 | #else /* !_WIN32 */ |
e33ab9aa | 1733 | |
7a6d2196 ML |
1734 | int controlbits; |
1735 | ||
eac329d2 | 1736 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1737 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1738 | if (config->baudrate == std_baudrates[i].value) { | |
1739 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1740 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1741 | |
1742 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1743 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1744 | break; |
1745 | } | |
1746 | } | |
1747 | ||
31b3a8f5 MH |
1748 | /* Non-standard baud rate */ |
1749 | if (i == NUM_STD_BAUDRATES) { | |
1750 | #ifdef __APPLE__ | |
24abdb68 | 1751 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1752 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1753 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1754 | baud_nonstd = config->baudrate; |
5cea279a | 1755 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1756 | baud_nonstd = 1; |
31b3a8f5 | 1757 | #else |
c33efc48 | 1758 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1759 | #endif |
1760 | } | |
e33ab9aa ML |
1761 | } |
1762 | ||
1763 | if (config->bits >= 0) { | |
1764 | data->term.c_cflag &= ~CSIZE; | |
1765 | switch (config->bits) { | |
1766 | case 8: | |
1767 | data->term.c_cflag |= CS8; | |
1768 | break; | |
1769 | case 7: | |
1770 | data->term.c_cflag |= CS7; | |
1771 | break; | |
1772 | case 6: | |
1773 | data->term.c_cflag |= CS6; | |
1774 | break; | |
23922313 UH |
1775 | case 5: |
1776 | data->term.c_cflag |= CS5; | |
1777 | break; | |
e33ab9aa | 1778 | default: |
c33efc48 | 1779 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1780 | } |
1781 | } | |
1782 | ||
1783 | if (config->parity >= 0) { | |
1784 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1785 | data->term.c_cflag &= ~(PARENB | PARODD); |
1786 | #ifdef CMSPAR | |
1787 | data->term.c_cflag &= ~CMSPAR; | |
1788 | #endif | |
e33ab9aa ML |
1789 | switch (config->parity) { |
1790 | case SP_PARITY_NONE: | |
1791 | data->term.c_iflag |= IGNPAR; | |
1792 | break; | |
1793 | case SP_PARITY_EVEN: | |
1794 | data->term.c_cflag |= PARENB; | |
1795 | break; | |
1796 | case SP_PARITY_ODD: | |
1797 | data->term.c_cflag |= PARENB | PARODD; | |
1798 | break; | |
afb518f0 | 1799 | #ifdef CMSPAR |
e432ce60 | 1800 | case SP_PARITY_MARK: |
c3e05092 | 1801 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 1802 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
1803 | break; |
1804 | case SP_PARITY_SPACE: | |
c3e05092 | 1805 | data->term.c_cflag |= PARENB; |
c3e05092 | 1806 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 1807 | break; |
afb518f0 ML |
1808 | #else |
1809 | case SP_PARITY_MARK: | |
1810 | case SP_PARITY_SPACE: | |
1811 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
1812 | #endif | |
e33ab9aa | 1813 | default: |
c33efc48 | 1814 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1815 | } |
1816 | } | |
1817 | ||
1818 | if (config->stopbits >= 0) { | |
1819 | data->term.c_cflag &= ~CSTOPB; | |
1820 | switch (config->stopbits) { | |
1821 | case 1: | |
1822 | data->term.c_cflag &= ~CSTOPB; | |
1823 | break; | |
1824 | case 2: | |
1825 | data->term.c_cflag |= CSTOPB; | |
1826 | break; | |
1827 | default: | |
c33efc48 | 1828 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1829 | } |
1830 | } | |
1831 | ||
eac329d2 | 1832 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 1833 | if (data->termiox_supported) { |
bd791fe1 | 1834 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
1835 | switch (config->rts) { |
1836 | case SP_RTS_OFF: | |
1837 | case SP_RTS_ON: | |
1838 | controlbits = TIOCM_RTS; | |
1839 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1840 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1841 | break; |
1842 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 1843 | data->rts_flow = 1; |
68ec29db ML |
1844 | break; |
1845 | default: | |
1846 | break; | |
e33ab9aa | 1847 | } |
68ec29db | 1848 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 1849 | data->cts_flow = 1; |
e33ab9aa | 1850 | |
bd791fe1 | 1851 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 1852 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1853 | else |
1854 | data->term.c_iflag &= ~CRTSCTS; | |
1855 | } else { | |
1856 | /* Asymmetric use of RTS/CTS not supported. */ | |
1857 | if (data->term.c_iflag & CRTSCTS) { | |
1858 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1859 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1860 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1861 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1862 | } |
1863 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1864 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1865 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1866 | } |
e33ab9aa | 1867 | } else { |
68ec29db ML |
1868 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1869 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1870 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1871 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1872 | } |
1873 | ||
1874 | if (config->rts >= 0) { | |
1875 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1876 | data->term.c_iflag |= CRTSCTS; | |
1877 | } else { | |
1878 | controlbits = TIOCM_RTS; | |
1879 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1880 | &controlbits) < 0) | |
c33efc48 | 1881 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1882 | } |
e33ab9aa ML |
1883 | } |
1884 | } | |
1885 | } | |
1886 | ||
eac329d2 | 1887 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 1888 | if (data->termiox_supported) { |
bd791fe1 | 1889 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
1890 | switch (config->dtr) { |
1891 | case SP_DTR_OFF: | |
1892 | case SP_DTR_ON: | |
1893 | controlbits = TIOCM_DTR; | |
1894 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1895 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1896 | break; |
1897 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 1898 | data->dtr_flow = 1; |
68ec29db ML |
1899 | break; |
1900 | default: | |
1901 | break; | |
1902 | } | |
1903 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 1904 | data->dsr_flow = 1; |
68ec29db ML |
1905 | } else { |
1906 | /* DTR/DSR flow control not supported. */ | |
1907 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1908 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1909 | |
68ec29db ML |
1910 | if (config->dtr >= 0) { |
1911 | controlbits = TIOCM_DTR; | |
1912 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1913 | &controlbits) < 0) | |
c33efc48 | 1914 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1915 | } |
e33ab9aa ML |
1916 | } |
1917 | } | |
1918 | ||
1919 | if (config->xon_xoff >= 0) { | |
1920 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1921 | switch (config->xon_xoff) { | |
1922 | case SP_XONXOFF_DISABLED: | |
1923 | break; | |
1924 | case SP_XONXOFF_IN: | |
1925 | data->term.c_iflag |= IXOFF; | |
1926 | break; | |
1927 | case SP_XONXOFF_OUT: | |
1928 | data->term.c_iflag |= IXON | IXANY; | |
1929 | break; | |
1930 | case SP_XONXOFF_INOUT: | |
1931 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1932 | break; | |
1933 | default: | |
c33efc48 | 1934 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1935 | } |
1936 | } | |
1937 | ||
3f5c06d0 | 1938 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 1939 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1940 | |
1941 | #ifdef __APPLE__ | |
1942 | if (baud_nonstd != B0) { | |
1943 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1944 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
1945 | /* Set baud rates in data->term to correct, but incompatible |
1946 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
1947 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 1948 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1949 | } |
7a6d2196 | 1950 | #elif defined(__linux__) |
5cea279a | 1951 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1952 | if (baud_nonstd) |
1953 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 1954 | #endif |
40978c2b | 1955 | #ifdef USE_TERMIOX |
68ec29db | 1956 | if (data->termiox_supported) |
bd791fe1 | 1957 | TRY(set_flow(port->fd, data)); |
40978c2b | 1958 | #endif |
7a6d2196 | 1959 | #endif |
31b3a8f5 MH |
1960 | |
1961 | #endif /* !_WIN32 */ | |
e33ab9aa | 1962 | |
c33efc48 | 1963 | RETURN_OK(); |
e33ab9aa ML |
1964 | } |
1965 | ||
970f279a | 1966 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 1967 | { |
59131d60 | 1968 | struct sp_port_config *config; |
9b1502ef | 1969 | |
00d8c56d UH |
1970 | TRACE("%p", config_ptr); |
1971 | ||
9b1502ef ML |
1972 | if (!config_ptr) |
1973 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
1974 | ||
59131d60 ML |
1975 | *config_ptr = NULL; |
1976 | ||
1977 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
9b1502ef ML |
1978 | RETURN_ERROR(SP_ERR_MEM, "config malloc failed"); |
1979 | ||
59131d60 ML |
1980 | config->baudrate = -1; |
1981 | config->bits = -1; | |
1982 | config->parity = -1; | |
1983 | config->stopbits = -1; | |
1984 | config->rts = -1; | |
1985 | config->cts = -1; | |
1986 | config->dtr = -1; | |
1987 | config->dsr = -1; | |
1988 | ||
1989 | *config_ptr = config; | |
1990 | ||
9b1502ef ML |
1991 | RETURN_OK(); |
1992 | } | |
1993 | ||
970f279a | 1994 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
1995 | { |
1996 | TRACE("%p", config); | |
1997 | ||
1998 | if (!config) | |
1999 | DEBUG("Null config"); | |
2000 | else | |
2001 | free(config); | |
2002 | ||
2003 | RETURN(); | |
2004 | } | |
2005 | ||
970f279a AJ |
2006 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2007 | struct sp_port_config *config) | |
70cd37de ML |
2008 | { |
2009 | struct port_data data; | |
2010 | ||
2011 | TRACE("%p, %p", port, config); | |
2012 | ||
2013 | CHECK_OPEN_PORT(); | |
2014 | ||
2015 | if (!config) | |
9b1502ef | 2016 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2017 | |
2018 | TRY(get_config(port, &data, config)); | |
2019 | ||
2020 | RETURN_OK(); | |
2021 | } | |
2022 | ||
970f279a AJ |
2023 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2024 | const struct sp_port_config *config) | |
e33ab9aa | 2025 | { |
8f189c4c | 2026 | struct port_data data; |
e33ab9aa ML |
2027 | struct sp_port_config prev_config; |
2028 | ||
c33efc48 ML |
2029 | TRACE("%p, %p", port, config); |
2030 | ||
dec10e31 | 2031 | CHECK_OPEN_PORT(); |
823690ae ML |
2032 | |
2033 | if (!config) | |
c33efc48 | 2034 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2035 | |
e33ab9aa ML |
2036 | TRY(get_config(port, &data, &prev_config)); |
2037 | TRY(set_config(port, &data, config)); | |
74510d4b | 2038 | |
c33efc48 | 2039 | RETURN_OK(); |
74510d4b ML |
2040 | } |
2041 | ||
9b1502ef | 2042 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2043 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2044 | struct port_data data; \ |
e33ab9aa | 2045 | struct sp_port_config config; \ |
c33efc48 | 2046 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2047 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2048 | TRY(get_config(port, &data, &config)); \ |
2049 | config.x = x; \ | |
2050 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2051 | RETURN_OK(); \ |
9b1502ef | 2052 | } \ |
970f279a AJ |
2053 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2054 | type *x) { \ | |
00d8c56d | 2055 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2056 | if (!config) \ |
2057 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2058 | *x = config->x; \ | |
2059 | RETURN_OK(); \ | |
2060 | } \ | |
970f279a AJ |
2061 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2062 | type x) { \ | |
9b1502ef ML |
2063 | TRACE("%p, %d", config, x); \ |
2064 | if (!config) \ | |
2065 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2066 | config->x = x; \ | |
2067 | RETURN_OK(); \ | |
9069c2fb ML |
2068 | } |
2069 | ||
9b1502ef ML |
2070 | CREATE_ACCESSORS(baudrate, int) |
2071 | CREATE_ACCESSORS(bits, int) | |
2072 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2073 | CREATE_ACCESSORS(stopbits, int) | |
2074 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2075 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2076 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2077 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2078 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2079 | ||
970f279a AJ |
2080 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2081 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2082 | { |
9b1502ef ML |
2083 | if (!config) |
2084 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2085 | |
2086 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2087 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2088 | |
e33ab9aa | 2089 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2090 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2091 | else |
9b1502ef | 2092 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2093 | |
2094 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2095 | config->rts = SP_RTS_FLOW_CONTROL; |
2096 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2097 | } else { |
9b1502ef ML |
2098 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2099 | config->rts = SP_RTS_ON; | |
2100 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2101 | } |
2102 | ||
2103 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2104 | config->dtr = SP_DTR_FLOW_CONTROL; |
2105 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2106 | } else { |
9b1502ef ML |
2107 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2108 | config->dtr = SP_DTR_ON; | |
2109 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2110 | } |
2111 | ||
9b1502ef ML |
2112 | RETURN_OK(); |
2113 | } | |
2114 | ||
970f279a AJ |
2115 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2116 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2117 | { |
2118 | struct port_data data; | |
2119 | struct sp_port_config config; | |
2120 | ||
2121 | TRACE("%p, %d", port, flowcontrol); | |
2122 | ||
2123 | CHECK_OPEN_PORT(); | |
2124 | ||
2125 | TRY(get_config(port, &data, &config)); | |
2126 | ||
2127 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2128 | ||
e33ab9aa ML |
2129 | TRY(set_config(port, &data, &config)); |
2130 | ||
c33efc48 | 2131 | RETURN_OK(); |
e33ab9aa ML |
2132 | } |
2133 | ||
970f279a AJ |
2134 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2135 | enum sp_signal *signals) | |
8cf7c697 | 2136 | { |
c33efc48 ML |
2137 | TRACE("%p, %p", port, signals); |
2138 | ||
dec10e31 | 2139 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2140 | |
2141 | if (!signals) | |
c33efc48 | 2142 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2143 | |
ea667be7 ML |
2144 | DEBUG("Getting control signals for port %s", port->name); |
2145 | ||
8cf7c697 ML |
2146 | *signals = 0; |
2147 | #ifdef _WIN32 | |
2148 | DWORD bits; | |
2149 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2150 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2151 | if (bits & MS_CTS_ON) |
2152 | *signals |= SP_SIG_CTS; | |
2153 | if (bits & MS_DSR_ON) | |
2154 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2155 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2156 | *signals |= SP_SIG_DCD; |
2157 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2158 | *signals |= SP_SIG_RI; |
2159 | #else | |
2160 | int bits; | |
2161 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2162 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2163 | if (bits & TIOCM_CTS) |
2164 | *signals |= SP_SIG_CTS; | |
2165 | if (bits & TIOCM_DSR) | |
2166 | *signals |= SP_SIG_DSR; | |
2167 | if (bits & TIOCM_CAR) | |
2168 | *signals |= SP_SIG_DCD; | |
2169 | if (bits & TIOCM_RNG) | |
2170 | *signals |= SP_SIG_RI; | |
2171 | #endif | |
c33efc48 | 2172 | RETURN_OK(); |
8cf7c697 ML |
2173 | } |
2174 | ||
970f279a | 2175 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2176 | { |
c33efc48 ML |
2177 | TRACE("%p", port); |
2178 | ||
dec10e31 | 2179 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2180 | #ifdef _WIN32 |
2181 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2182 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2183 | #else |
2184 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2185 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2186 | #endif |
2187 | ||
c33efc48 | 2188 | RETURN_OK(); |
90cc3ee6 ML |
2189 | } |
2190 | ||
970f279a | 2191 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2192 | { |
c33efc48 ML |
2193 | TRACE("%p", port); |
2194 | ||
dec10e31 | 2195 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2196 | #ifdef _WIN32 |
2197 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2198 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2199 | #else |
2200 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2201 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2202 | #endif |
2203 | ||
c33efc48 | 2204 | RETURN_OK(); |
90cc3ee6 ML |
2205 | } |
2206 | ||
970f279a | 2207 | SP_API int sp_last_error_code(void) |
74510d4b | 2208 | { |
c33efc48 | 2209 | TRACE(""); |
74510d4b | 2210 | #ifdef _WIN32 |
c33efc48 | 2211 | RETURN_VALUE("%d", GetLastError()); |
74510d4b | 2212 | #else |
c33efc48 | 2213 | RETURN_VALUE("%d", errno); |
74510d4b ML |
2214 | #endif |
2215 | } | |
2216 | ||
970f279a | 2217 | SP_API char *sp_last_error_message(void) |
74510d4b | 2218 | { |
c33efc48 ML |
2219 | TRACE(""); |
2220 | ||
74510d4b ML |
2221 | #ifdef _WIN32 |
2222 | LPVOID message; | |
2223 | DWORD error = GetLastError(); | |
2224 | ||
2225 | FormatMessage( | |
2226 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2227 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2228 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2229 | NULL, | |
2230 | error, | |
2231 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2232 | (LPTSTR) &message, | |
2233 | 0, NULL ); | |
2234 | ||
c33efc48 | 2235 | RETURN_VALUE("%s", message); |
74510d4b | 2236 | #else |
c33efc48 | 2237 | RETURN_VALUE("%s", strerror(errno)); |
74510d4b ML |
2238 | #endif |
2239 | } | |
2240 | ||
970f279a | 2241 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2242 | { |
c33efc48 ML |
2243 | TRACE("%s", message); |
2244 | ||
74510d4b ML |
2245 | #ifdef _WIN32 |
2246 | LocalFree(message); | |
64eec30d ML |
2247 | #else |
2248 | (void)message; | |
74510d4b | 2249 | #endif |
c33efc48 ML |
2250 | |
2251 | RETURN(); | |
74510d4b | 2252 | } |
863b35e6 | 2253 | |
970f279a | 2254 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2255 | { |
c33efc48 ML |
2256 | TRACE("%p", handler); |
2257 | ||
863b35e6 | 2258 | sp_debug_handler = handler; |
c33efc48 ML |
2259 | |
2260 | RETURN(); | |
863b35e6 ML |
2261 | } |
2262 | ||
970f279a | 2263 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2264 | { |
2265 | va_list args; | |
2266 | va_start(args, format); | |
2267 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2268 | fputs("sp: ", stderr); |
863b35e6 ML |
2269 | vfprintf(stderr, format, args); |
2270 | } | |
2271 | va_end(args); | |
2272 | } | |
524b0e14 | 2273 | |
970f279a | 2274 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2275 | { |
2276 | return SP_PACKAGE_VERSION_MAJOR; | |
2277 | } | |
2278 | ||
970f279a | 2279 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2280 | { |
2281 | return SP_PACKAGE_VERSION_MINOR; | |
2282 | } | |
2283 | ||
970f279a | 2284 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2285 | { |
2286 | return SP_PACKAGE_VERSION_MICRO; | |
2287 | } | |
2288 | ||
970f279a | 2289 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2290 | { |
2291 | return SP_PACKAGE_VERSION_STRING; | |
2292 | } | |
2293 | ||
970f279a | 2294 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2295 | { |
2296 | return SP_LIB_VERSION_CURRENT; | |
2297 | } | |
2298 | ||
970f279a | 2299 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2300 | { |
2301 | return SP_LIB_VERSION_REVISION; | |
2302 | } | |
2303 | ||
970f279a | 2304 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2305 | { |
2306 | return SP_LIB_VERSION_AGE; | |
2307 | } | |
2308 | ||
970f279a | 2309 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2310 | { |
2311 | return SP_LIB_VERSION_STRING; | |
2312 | } | |
2313 | ||
2314 | /** @} */ |