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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 | 26 | |
6c6aebe7 | 27 | static const struct std_baudrate std_baudrates[] = { |
da2748bf ML |
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 | ||
6c6aebe7 UH |
47 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) |
48 | ||
863b35e6 ML |
49 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
50 | ||
eb6ed20f ML |
51 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
52 | struct sp_port_config *config); | |
e33dcf90 | 53 | |
eb6ed20f ML |
54 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
55 | const struct sp_port_config *config); | |
80186526 | 56 | |
970f279a | 57 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
58 | { |
59 | struct sp_port *port; | |
5a8810e2 | 60 | #ifndef NO_PORT_METADATA |
a93fb468 | 61 | enum sp_return ret; |
5a8810e2 | 62 | #endif |
5919c913 | 63 | int len; |
d54e9004 | 64 | |
c33efc48 ML |
65 | TRACE("%s, %p", portname, port_ptr); |
66 | ||
32b5ac05 | 67 | if (!port_ptr) |
c33efc48 | 68 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 69 | |
77f262c4 ML |
70 | *port_ptr = NULL; |
71 | ||
d4babed2 | 72 | if (!portname) |
c33efc48 | 73 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 74 | |
7890cef6 | 75 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 76 | |
d54e9004 | 77 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 78 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 79 | |
5919c913 ML |
80 | len = strlen(portname) + 1; |
81 | ||
eac329d2 | 82 | if (!(port->name = malloc(len))) { |
d54e9004 | 83 | free(port); |
c33efc48 | 84 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
85 | } |
86 | ||
87 | memcpy(port->name, portname, len); | |
88 | ||
8f471c66 | 89 | #ifdef _WIN32 |
e31f2c6b | 90 | port->usb_path = NULL; |
8f471c66 ML |
91 | port->hdl = INVALID_HANDLE_VALUE; |
92 | #else | |
93 | port->fd = -1; | |
94 | #endif | |
95 | ||
e33dcf90 ML |
96 | port->description = NULL; |
97 | port->transport = SP_TRANSPORT_NATIVE; | |
98 | port->usb_bus = -1; | |
99 | port->usb_address = -1; | |
100 | port->usb_vid = -1; | |
101 | port->usb_pid = -1; | |
102 | port->usb_manufacturer = NULL; | |
103 | port->usb_product = NULL; | |
104 | port->usb_serial = NULL; | |
105 | port->bluetooth_address = NULL; | |
106 | ||
e4ce975a | 107 | #ifndef NO_PORT_METADATA |
e33dcf90 | 108 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
109 | sp_free_port(port); |
110 | return ret; | |
111 | } | |
e4ce975a | 112 | #endif |
a93fb468 | 113 | |
77f262c4 ML |
114 | *port_ptr = port; |
115 | ||
c33efc48 | 116 | RETURN_OK(); |
d54e9004 ML |
117 | } |
118 | ||
970f279a | 119 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
120 | { |
121 | TRACE("%p", port); | |
122 | ||
123 | if (!port) | |
124 | return NULL; | |
125 | ||
9caa2e86 | 126 | RETURN_STRING(port->name); |
1c5aae9d ML |
127 | } |
128 | ||
970f279a | 129 | SP_API char *sp_get_port_description(struct sp_port *port) |
a93fb468 AJ |
130 | { |
131 | TRACE("%p", port); | |
132 | ||
133 | if (!port || !port->description) | |
134 | return NULL; | |
135 | ||
9caa2e86 | 136 | RETURN_STRING(port->description); |
a93fb468 AJ |
137 | } |
138 | ||
970f279a | 139 | SP_API enum sp_transport sp_get_port_transport(struct sp_port *port) |
a93fb468 AJ |
140 | { |
141 | TRACE("%p", port); | |
142 | ||
143 | if (!port) | |
144 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
145 | ||
9caa2e86 | 146 | RETURN_INT(port->transport); |
a93fb468 AJ |
147 | } |
148 | ||
970f279a AJ |
149 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
150 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
151 | { |
152 | TRACE("%p", port); | |
153 | ||
154 | if (!port) | |
155 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
156 | if (port->transport != SP_TRANSPORT_USB) | |
157 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
158 | if (port->usb_bus < 0 || port->usb_address < 0) |
159 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 160 | |
dc422c04 UH |
161 | if (usb_bus) |
162 | *usb_bus = port->usb_bus; | |
163 | if (usb_address) | |
164 | *usb_address = port->usb_address; | |
a93fb468 AJ |
165 | |
166 | RETURN_OK(); | |
167 | } | |
168 | ||
970f279a AJ |
169 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
170 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
171 | { |
172 | TRACE("%p", port); | |
173 | ||
174 | if (!port) | |
175 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
176 | if (port->transport != SP_TRANSPORT_USB) | |
177 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
178 | if (port->usb_vid < 0 || port->usb_pid < 0) |
179 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 180 | |
dc422c04 UH |
181 | if (usb_vid) |
182 | *usb_vid = port->usb_vid; | |
183 | if (usb_pid) | |
184 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
185 | |
186 | RETURN_OK(); | |
187 | } | |
188 | ||
970f279a | 189 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
190 | { |
191 | TRACE("%p", port); | |
192 | ||
193 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
194 | return NULL; | |
195 | ||
9caa2e86 | 196 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
197 | } |
198 | ||
970f279a | 199 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
200 | { |
201 | TRACE("%p", port); | |
202 | ||
203 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
204 | return NULL; | |
205 | ||
9caa2e86 | 206 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
207 | } |
208 | ||
970f279a | 209 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
210 | { |
211 | TRACE("%p", port); | |
212 | ||
213 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
214 | return NULL; | |
215 | ||
9caa2e86 | 216 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
217 | } |
218 | ||
970f279a | 219 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
220 | { |
221 | TRACE("%p", port); | |
222 | ||
223 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
224 | || !port->bluetooth_address) | |
225 | return NULL; | |
226 | ||
9caa2e86 | 227 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
228 | } |
229 | ||
970f279a AJ |
230 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
231 | void *result_ptr) | |
3c126654 | 232 | { |
00d8c56d | 233 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
234 | |
235 | if (!port) | |
236 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
237 | ||
238 | #ifdef _WIN32 | |
239 | HANDLE *handle_ptr = result_ptr; | |
240 | *handle_ptr = port->hdl; | |
241 | #else | |
242 | int *fd_ptr = result_ptr; | |
243 | *fd_ptr = port->fd; | |
244 | #endif | |
245 | ||
246 | RETURN_OK(); | |
247 | } | |
248 | ||
970f279a AJ |
249 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
250 | struct sp_port **copy_ptr) | |
32b5ac05 | 251 | { |
c33efc48 ML |
252 | TRACE("%p, %p", port, copy_ptr); |
253 | ||
32b5ac05 | 254 | if (!copy_ptr) |
c33efc48 | 255 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
256 | |
257 | *copy_ptr = NULL; | |
258 | ||
c33efc48 ML |
259 | if (!port) |
260 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
261 | ||
262 | if (!port->name) | |
263 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 264 | |
ea667be7 ML |
265 | DEBUG("Copying port structure"); |
266 | ||
9caa2e86 | 267 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
268 | } |
269 | ||
970f279a | 270 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 271 | { |
c33efc48 ML |
272 | TRACE("%p", port); |
273 | ||
00d8c56d | 274 | if (!port) { |
c33efc48 ML |
275 | DEBUG("Null port"); |
276 | RETURN(); | |
277 | } | |
e3b2f7a4 | 278 | |
ea667be7 ML |
279 | DEBUG("Freeing port structure"); |
280 | ||
e3b2f7a4 ML |
281 | if (port->name) |
282 | free(port->name); | |
a93fb468 AJ |
283 | if (port->description) |
284 | free(port->description); | |
285 | if (port->usb_manufacturer) | |
286 | free(port->usb_manufacturer); | |
287 | if (port->usb_product) | |
288 | free(port->usb_product); | |
289 | if (port->usb_serial) | |
290 | free(port->usb_serial); | |
291 | if (port->bluetooth_address) | |
292 | free(port->bluetooth_address); | |
293 | #ifdef _WIN32 | |
294 | if (port->usb_path) | |
295 | free(port->usb_path); | |
296 | #endif | |
e3b2f7a4 ML |
297 | |
298 | free(port); | |
c33efc48 ML |
299 | |
300 | RETURN(); | |
e3b2f7a4 ML |
301 | } |
302 | ||
970f279a AJ |
303 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
304 | const char *portname) | |
3b63f34d ML |
305 | { |
306 | void *tmp; | |
307 | unsigned int count; | |
f92f1f0c | 308 | |
3b63f34d | 309 | for (count = 0; list[count]; count++); |
d54e9004 | 310 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
311 | goto fail; |
312 | list = tmp; | |
77f262c4 | 313 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 314 | goto fail; |
db2794ce | 315 | list[count + 1] = NULL; |
3b63f34d | 316 | return list; |
f92f1f0c | 317 | |
3b63f34d ML |
318 | fail: |
319 | sp_free_port_list(list); | |
320 | return NULL; | |
321 | } | |
322 | ||
970f279a | 323 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 324 | { |
d54e9004 | 325 | struct sp_port **list; |
48a4076f | 326 | int ret; |
24c1a4bb | 327 | |
c33efc48 ML |
328 | TRACE("%p", list_ptr); |
329 | ||
dec10e31 ML |
330 | if (!list_ptr) |
331 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
332 | ||
ea667be7 ML |
333 | DEBUG("Enumerating ports"); |
334 | ||
d54e9004 | 335 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 336 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
337 | |
338 | list[0] = NULL; | |
3b63f34d | 339 | |
e4ce975a ML |
340 | #ifdef NO_ENUMERATION |
341 | ret = SP_ERR_SUPP; | |
342 | #else | |
48a4076f | 343 | ret = list_ports(&list); |
e4ce975a | 344 | #endif |
77f262c4 | 345 | |
6b93ede4 ML |
346 | switch (ret) { |
347 | case SP_OK: | |
77f262c4 | 348 | *list_ptr = list; |
c33efc48 | 349 | RETURN_OK(); |
6b93ede4 | 350 | case SP_ERR_SUPP: |
9af8cff3 | 351 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); |
6b93ede4 | 352 | default: |
77f262c4 ML |
353 | if (list) |
354 | sp_free_port_list(list); | |
77f262c4 | 355 | *list_ptr = NULL; |
c33efc48 | 356 | return ret; |
77f262c4 | 357 | } |
3b63f34d ML |
358 | } |
359 | ||
970f279a | 360 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
361 | { |
362 | unsigned int i; | |
f92f1f0c | 363 | |
c33efc48 ML |
364 | TRACE("%p", list); |
365 | ||
dec10e31 ML |
366 | if (!list) { |
367 | DEBUG("Null list"); | |
368 | RETURN(); | |
369 | } | |
370 | ||
ea667be7 ML |
371 | DEBUG("Freeing port list"); |
372 | ||
3b63f34d | 373 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 374 | sp_free_port(list[i]); |
3b63f34d | 375 | free(list); |
c33efc48 ML |
376 | |
377 | RETURN(); | |
3b63f34d ML |
378 | } |
379 | ||
c33efc48 | 380 | #define CHECK_PORT() do { \ |
dc422c04 | 381 | if (!port) \ |
c33efc48 | 382 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 383 | if (!port->name) \ |
dec10e31 ML |
384 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
385 | } while (0) | |
386 | #ifdef _WIN32 | |
387 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
388 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
389 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 390 | } while (0) |
74510d4b | 391 | #else |
dec10e31 | 392 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
393 | if (port->fd < 0) \ |
394 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 395 | } while (0) |
74510d4b | 396 | #endif |
dec10e31 ML |
397 | #define CHECK_OPEN_PORT() do { \ |
398 | CHECK_PORT(); \ | |
399 | CHECK_PORT_HANDLE(); \ | |
400 | } while (0) | |
74510d4b | 401 | |
970f279a | 402 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 403 | { |
bccc7c9f ML |
404 | struct port_data data; |
405 | struct sp_port_config config; | |
406 | enum sp_return ret; | |
407 | ||
00d8c56d | 408 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 409 | |
dec10e31 ML |
410 | CHECK_PORT(); |
411 | ||
276ef1b9 | 412 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 413 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 414 | |
7890cef6 | 415 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 416 | |
74510d4b | 417 | #ifdef _WIN32 |
537942c9 | 418 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 419 | char *escaped_port_name; |
537942c9 | 420 | COMSTAT status; |
99945a1f ML |
421 | |
422 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 423 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 424 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
425 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
426 | ||
74510d4b | 427 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 428 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
429 | if (flags & SP_MODE_READ) |
430 | desired_access |= GENERIC_READ; | |
431 | if (flags & SP_MODE_WRITE) | |
74510d4b | 432 | desired_access |= GENERIC_WRITE; |
74510d4b | 433 | |
99945a1f | 434 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 435 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
436 | |
437 | free(escaped_port_name); | |
438 | ||
74510d4b | 439 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 440 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
441 | |
442 | /* All timeouts initially disabled. */ | |
443 | port->timeouts.ReadIntervalTimeout = 0; | |
444 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
445 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
446 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
447 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 448 | |
e3dcf906 | 449 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
450 | sp_close(port); |
451 | RETURN_FAIL("SetCommTimeouts() failed"); | |
452 | } | |
e3dcf906 ML |
453 | |
454 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
455 | #define INIT_OVERLAPPED(ovl) do { \ |
456 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
457 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
458 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
459 | == INVALID_HANDLE_VALUE) { \ | |
460 | sp_close(port); \ | |
461 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
462 | } \ | |
463 | } while (0) | |
464 | ||
465 | INIT_OVERLAPPED(read_ovl); | |
466 | INIT_OVERLAPPED(write_ovl); | |
467 | INIT_OVERLAPPED(wait_ovl); | |
468 | ||
469 | /* Set event mask for RX and error events. */ | |
470 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 471 | sp_close(port); |
6f1186aa | 472 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 473 | } |
6f1186aa ML |
474 | |
475 | /* Start background operation for RX and error events. */ | |
476 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
477 | if (GetLastError() != ERROR_IO_PENDING) { | |
478 | sp_close(port); | |
479 | RETURN_FAIL("WaitCommEvent() failed"); | |
480 | } | |
e3dcf906 ML |
481 | } |
482 | ||
483 | port->writing = FALSE; | |
484 | ||
74510d4b | 485 | #else |
e3dcf906 | 486 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 487 | |
74510d4b | 488 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 489 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 490 | flags_local |= O_RDWR; |
a036341b | 491 | else if (flags & SP_MODE_READ) |
74510d4b | 492 | flags_local |= O_RDONLY; |
a036341b ML |
493 | else if (flags & SP_MODE_WRITE) |
494 | flags_local |= O_WRONLY; | |
74510d4b ML |
495 | |
496 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 497 | RETURN_FAIL("open() failed"); |
bccc7c9f | 498 | #endif |
9cb98459 | 499 | |
e33ab9aa ML |
500 | ret = get_config(port, &data, &config); |
501 | ||
eac329d2 | 502 | if (ret < 0) { |
e33ab9aa | 503 | sp_close(port); |
c33efc48 | 504 | RETURN_CODEVAL(ret); |
e33ab9aa | 505 | } |
9cb98459 | 506 | |
bccc7c9f ML |
507 | /* Set sane port settings. */ |
508 | #ifdef _WIN32 | |
509 | data.dcb.fBinary = TRUE; | |
510 | data.dcb.fDsrSensitivity = FALSE; | |
511 | data.dcb.fErrorChar = FALSE; | |
512 | data.dcb.fNull = FALSE; | |
513 | data.dcb.fAbortOnError = TRUE; | |
514 | #else | |
b251be4b | 515 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
516 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
517 | #ifdef IUCLC | |
518 | data.term.c_iflag &= ~IUCLC; | |
519 | #endif | |
520 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
521 | #ifdef OLCUC | |
522 | data.term.c_oflag &= ~OLCUC; | |
523 | #endif | |
524 | #ifdef NLDLY | |
525 | data.term.c_oflag &= ~NLDLY; | |
526 | #endif | |
527 | #ifdef CRDLY | |
528 | data.term.c_oflag &= ~CRDLY; | |
529 | #endif | |
530 | #ifdef TABDLY | |
531 | data.term.c_oflag &= ~TABDLY; | |
532 | #endif | |
533 | #ifdef BSDLY | |
534 | data.term.c_oflag &= ~BSDLY; | |
535 | #endif | |
536 | #ifdef VTDLY | |
537 | data.term.c_oflag &= ~VTDLY; | |
538 | #endif | |
539 | #ifdef FFDLY | |
540 | data.term.c_oflag &= ~FFDLY; | |
541 | #endif | |
b251be4b | 542 | #ifdef OFILL |
9cb98459 ML |
543 | data.term.c_oflag &= ~OFILL; |
544 | #endif | |
c3e05092 | 545 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 546 | data.term.c_cc[VMIN] = 0; |
b251be4b | 547 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 548 | |
b251be4b ML |
549 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
550 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 551 | #endif |
9cb98459 | 552 | |
537942c9 | 553 | #ifdef _WIN32 |
1a2a1544 UH |
554 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
555 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
556 | #endif |
557 | ||
e33ab9aa ML |
558 | ret = set_config(port, &data, &config); |
559 | ||
eac329d2 | 560 | if (ret < 0) { |
e33ab9aa | 561 | sp_close(port); |
c33efc48 | 562 | RETURN_CODEVAL(ret); |
e33ab9aa | 563 | } |
74510d4b | 564 | |
c33efc48 | 565 | RETURN_OK(); |
74510d4b ML |
566 | } |
567 | ||
970f279a | 568 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 569 | { |
c33efc48 ML |
570 | TRACE("%p", port); |
571 | ||
dec10e31 | 572 | CHECK_OPEN_PORT(); |
74510d4b | 573 | |
7890cef6 | 574 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 575 | |
74510d4b ML |
576 | #ifdef _WIN32 |
577 | /* Returns non-zero upon success, 0 upon failure. */ | |
578 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 579 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 580 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
581 | |
582 | /* Close event handles for overlapped structures. */ | |
583 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
584 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
585 | CloseHandle(port->ovl.hEvent) == 0) \ | |
586 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
587 | } while (0) | |
588 | CLOSE_OVERLAPPED(read_ovl); | |
589 | CLOSE_OVERLAPPED(write_ovl); | |
590 | CLOSE_OVERLAPPED(wait_ovl); | |
591 | ||
74510d4b ML |
592 | #else |
593 | /* Returns 0 upon success, -1 upon failure. */ | |
594 | if (close(port->fd) == -1) | |
c33efc48 | 595 | RETURN_FAIL("close() failed"); |
8f471c66 | 596 | port->fd = -1; |
74510d4b ML |
597 | #endif |
598 | ||
c33efc48 | 599 | RETURN_OK(); |
74510d4b ML |
600 | } |
601 | ||
970f279a | 602 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 603 | { |
00d8c56d | 604 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 605 | |
dec10e31 ML |
606 | CHECK_OPEN_PORT(); |
607 | ||
608 | if (buffers > SP_BUF_BOTH) | |
609 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 610 | |
0ba3e49b | 611 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 612 | |
7890cef6 ML |
613 | DEBUG_FMT("Flushing %s buffers on port %s", |
614 | buffer_names[buffers], port->name); | |
ea667be7 | 615 | |
74510d4b | 616 | #ifdef _WIN32 |
fd8fd11a ML |
617 | DWORD flags = 0; |
618 | if (buffers & SP_BUF_INPUT) | |
619 | flags |= PURGE_RXCLEAR; | |
620 | if (buffers & SP_BUF_OUTPUT) | |
621 | flags |= PURGE_TXCLEAR; | |
622 | ||
74510d4b | 623 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 624 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 625 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 626 | #else |
fd8fd11a | 627 | int flags = 0; |
ad749855 | 628 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 629 | flags = TCIOFLUSH; |
ad749855 | 630 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 631 | flags = TCIFLUSH; |
ad749855 | 632 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
633 | flags = TCOFLUSH; |
634 | ||
74510d4b | 635 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 636 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 637 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 638 | #endif |
c33efc48 | 639 | RETURN_OK(); |
74510d4b ML |
640 | } |
641 | ||
970f279a | 642 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 643 | { |
c33efc48 ML |
644 | TRACE("%p", port); |
645 | ||
dec10e31 | 646 | CHECK_OPEN_PORT(); |
69a3739c | 647 | |
7890cef6 | 648 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 649 | |
69a3739c ML |
650 | #ifdef _WIN32 |
651 | /* Returns non-zero upon success, 0 upon failure. */ | |
652 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 653 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 654 | RETURN_OK(); |
69a3739c | 655 | #else |
2c827b21 ML |
656 | int result; |
657 | while (1) { | |
33fd8804 ML |
658 | #ifdef __ANDROID__ |
659 | int arg = 1; | |
660 | result = ioctl(port->fd, TCSBRK, &arg); | |
661 | #else | |
2c827b21 | 662 | result = tcdrain(port->fd); |
33fd8804 | 663 | #endif |
2c827b21 ML |
664 | if (result < 0) { |
665 | if (errno == EINTR) { | |
666 | DEBUG("tcdrain() was interrupted"); | |
667 | continue; | |
668 | } else { | |
669 | RETURN_FAIL("tcdrain() failed"); | |
670 | } | |
671 | } else { | |
672 | RETURN_OK(); | |
673 | } | |
674 | } | |
69a3739c | 675 | #endif |
69a3739c ML |
676 | } |
677 | ||
970f279a AJ |
678 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
679 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
680 | { |
681 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
682 | ||
683 | CHECK_OPEN_PORT(); | |
684 | ||
685 | if (!buf) | |
686 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
687 | ||
688 | if (timeout) | |
7890cef6 ML |
689 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
690 | count, port->name, timeout); | |
e3dcf906 | 691 | else |
7890cef6 ML |
692 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
693 | count, port->name); | |
e3dcf906 ML |
694 | |
695 | if (count == 0) | |
9caa2e86 | 696 | RETURN_INT(0); |
e3dcf906 ML |
697 | |
698 | #ifdef _WIN32 | |
699 | DWORD bytes_written = 0; | |
700 | BOOL result; | |
701 | ||
702 | /* Wait for previous non-blocking write to complete, if any. */ | |
703 | if (port->writing) { | |
704 | DEBUG("Waiting for previous write to complete"); | |
705 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
706 | port->writing = 0; | |
707 | if (!result) | |
708 | RETURN_FAIL("Previous write failed to complete"); | |
709 | DEBUG("Previous write completed"); | |
710 | } | |
711 | ||
712 | /* Set timeout. */ | |
713 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
714 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
715 | RETURN_FAIL("SetCommTimeouts() failed"); | |
716 | ||
717 | /* Start write. */ | |
718 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
719 | if (GetLastError() == ERROR_IO_PENDING) { | |
720 | DEBUG("Waiting for write to complete"); | |
721 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
7890cef6 | 722 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
9caa2e86 | 723 | RETURN_INT(bytes_written); |
e3dcf906 ML |
724 | } else { |
725 | RETURN_FAIL("WriteFile() failed"); | |
726 | } | |
727 | } else { | |
728 | DEBUG("Write completed immediately"); | |
9caa2e86 | 729 | RETURN_INT(count); |
e3dcf906 ML |
730 | } |
731 | #else | |
732 | size_t bytes_written = 0; | |
733 | unsigned char *ptr = (unsigned char *) buf; | |
734 | struct timeval start, delta, now, end = {0, 0}; | |
735 | fd_set fds; | |
736 | int result; | |
737 | ||
738 | if (timeout) { | |
739 | /* Get time at start of operation. */ | |
740 | gettimeofday(&start, NULL); | |
741 | /* Define duration of timeout. */ | |
742 | delta.tv_sec = timeout / 1000; | |
1b342042 | 743 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
744 | /* Calculate time at which we should give up. */ |
745 | timeradd(&start, &delta, &end); | |
746 | } | |
747 | ||
748 | /* Loop until we have written the requested number of bytes. */ | |
dc422c04 | 749 | while (bytes_written < count) { |
e3dcf906 ML |
750 | /* Wait until space is available. */ |
751 | FD_ZERO(&fds); | |
752 | FD_SET(port->fd, &fds); | |
753 | if (timeout) { | |
754 | gettimeofday(&now, NULL); | |
755 | if (timercmp(&now, &end, >)) { | |
dc422c04 | 756 | DEBUG("Write timed out"); |
9caa2e86 | 757 | RETURN_INT(bytes_written); |
e3dcf906 ML |
758 | } |
759 | timersub(&end, &now, &delta); | |
760 | } | |
761 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
762 | if (result < 0) { |
763 | if (errno == EINTR) { | |
764 | DEBUG("select() call was interrupted, repeating"); | |
765 | continue; | |
766 | } else { | |
767 | RETURN_FAIL("select() failed"); | |
768 | } | |
769 | } else if (result == 0) { | |
dc422c04 | 770 | DEBUG("Write timed out"); |
9caa2e86 | 771 | RETURN_INT(bytes_written); |
e3dcf906 ML |
772 | } |
773 | ||
774 | /* Do write. */ | |
775 | result = write(port->fd, ptr, count - bytes_written); | |
776 | ||
777 | if (result < 0) { | |
778 | if (errno == EAGAIN) | |
779 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
780 | continue; | |
781 | else | |
782 | /* This is an actual failure. */ | |
783 | RETURN_FAIL("write() failed"); | |
784 | } | |
785 | ||
786 | bytes_written += result; | |
787 | ptr += result; | |
788 | } | |
789 | ||
9caa2e86 | 790 | RETURN_INT(bytes_written); |
e3dcf906 ML |
791 | #endif |
792 | } | |
793 | ||
970f279a AJ |
794 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
795 | const void *buf, size_t count) | |
74510d4b | 796 | { |
c33efc48 ML |
797 | TRACE("%p, %p, %d", port, buf, count); |
798 | ||
dec10e31 | 799 | CHECK_OPEN_PORT(); |
74510d4b ML |
800 | |
801 | if (!buf) | |
c33efc48 | 802 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 803 | |
7890cef6 | 804 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 805 | |
a3cb91f5 | 806 | if (count == 0) |
9caa2e86 | 807 | RETURN_INT(0); |
a3cb91f5 | 808 | |
74510d4b ML |
809 | #ifdef _WIN32 |
810 | DWORD written = 0; | |
0765af56 | 811 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 812 | |
e3dcf906 ML |
813 | /* Check whether previous write is complete. */ |
814 | if (port->writing) { | |
815 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
816 | DEBUG("Previous write completed"); | |
817 | port->writing = 0; | |
818 | } else { | |
819 | DEBUG("Previous write not complete"); | |
820 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 821 | RETURN_INT(0); |
a3cb91f5 | 822 | } |
e3dcf906 | 823 | } |
a3cb91f5 | 824 | |
e3dcf906 ML |
825 | /* Set timeout. */ |
826 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
827 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
828 | RETURN_FAIL("SetCommTimeouts() failed"); | |
829 | ||
dc422c04 UH |
830 | /* |
831 | * Keep writing data until the OS has to actually start an async IO | |
832 | * for it. At that point we know the buffer is full. | |
833 | */ | |
834 | while (written < count) { | |
e3dcf906 ML |
835 | /* Copy first byte of user buffer. */ |
836 | port->pending_byte = *ptr++; | |
837 | ||
838 | /* Start asynchronous write. */ | |
839 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
840 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
841 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
842 | DEBUG("Asynchronous write completed immediately"); | |
843 | port->writing = 0; | |
844 | written++; | |
845 | continue; | |
846 | } else { | |
847 | DEBUG("Asynchronous write running"); | |
848 | port->writing = 1; | |
9caa2e86 | 849 | RETURN_INT(++written); |
64d99621 | 850 | } |
a3cb91f5 | 851 | } else { |
e3dcf906 ML |
852 | /* Actual failure of some kind. */ |
853 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 854 | } |
e3dcf906 | 855 | } else { |
9af8cff3 | 856 | DEBUG("Single byte written immediately"); |
e3dcf906 | 857 | written++; |
a3cb91f5 ML |
858 | } |
859 | } | |
860 | ||
9af8cff3 | 861 | DEBUG("All bytes written immediately"); |
e3dcf906 | 862 | |
9caa2e86 | 863 | RETURN_INT(written); |
74510d4b ML |
864 | #else |
865 | /* Returns the number of bytes written, or -1 upon failure. */ | |
866 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 867 | |
74510d4b | 868 | if (written < 0) |
c33efc48 | 869 | RETURN_FAIL("write() failed"); |
74510d4b | 870 | else |
9caa2e86 | 871 | RETURN_INT(written); |
74510d4b ML |
872 | #endif |
873 | } | |
874 | ||
970f279a AJ |
875 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
876 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
877 | { |
878 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
879 | ||
880 | CHECK_OPEN_PORT(); | |
881 | ||
882 | if (!buf) | |
883 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
884 | ||
885 | if (timeout) | |
7890cef6 ML |
886 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
887 | count, port->name, timeout); | |
e3dcf906 | 888 | else |
7890cef6 ML |
889 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
890 | count, port->name); | |
e3dcf906 ML |
891 | |
892 | if (count == 0) | |
9caa2e86 | 893 | RETURN_INT(0); |
e3dcf906 ML |
894 | |
895 | #ifdef _WIN32 | |
896 | DWORD bytes_read = 0; | |
f446cfbf | 897 | DWORD wait_result = 0; |
e3dcf906 ML |
898 | |
899 | /* Set timeout. */ | |
900 | port->timeouts.ReadIntervalTimeout = 0; | |
901 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
902 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
903 | RETURN_FAIL("SetCommTimeouts() failed"); | |
904 | ||
905 | /* Start read. */ | |
906 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
907 | if (GetLastError() == ERROR_IO_PENDING) { | |
908 | DEBUG("Waiting for read to complete"); | |
909 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
7890cef6 | 910 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
e3dcf906 ML |
911 | } else { |
912 | RETURN_FAIL("ReadFile() failed"); | |
913 | } | |
914 | } else { | |
915 | DEBUG("Read completed immediately"); | |
6f1186aa ML |
916 | bytes_read = count; |
917 | } | |
918 | ||
f446cfbf ML |
919 | /* Restart wait operation if needed. */ |
920 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, &wait_result, FALSE)) { | |
921 | /* Previous wait completed, start a new one. */ | |
922 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
923 | if (GetLastError() != ERROR_IO_PENDING) | |
924 | RETURN_FAIL("WaitCommEvent() failed"); | |
925 | } | |
926 | } else if (GetLastError() != ERROR_IO_INCOMPLETE) { | |
927 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 928 | } |
6f1186aa | 929 | |
9caa2e86 | 930 | RETURN_INT(bytes_read); |
6f1186aa | 931 | |
e3dcf906 ML |
932 | #else |
933 | size_t bytes_read = 0; | |
934 | unsigned char *ptr = (unsigned char *) buf; | |
935 | struct timeval start, delta, now, end = {0, 0}; | |
936 | fd_set fds; | |
937 | int result; | |
938 | ||
939 | if (timeout) { | |
940 | /* Get time at start of operation. */ | |
941 | gettimeofday(&start, NULL); | |
942 | /* Define duration of timeout. */ | |
943 | delta.tv_sec = timeout / 1000; | |
1b342042 | 944 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
945 | /* Calculate time at which we should give up. */ |
946 | timeradd(&start, &delta, &end); | |
947 | } | |
948 | ||
949 | /* Loop until we have the requested number of bytes. */ | |
dc422c04 | 950 | while (bytes_read < count) { |
e3dcf906 ML |
951 | /* Wait until data is available. */ |
952 | FD_ZERO(&fds); | |
953 | FD_SET(port->fd, &fds); | |
954 | if (timeout) { | |
955 | gettimeofday(&now, NULL); | |
956 | if (timercmp(&now, &end, >)) | |
957 | /* Timeout has expired. */ | |
9caa2e86 | 958 | RETURN_INT(bytes_read); |
e3dcf906 ML |
959 | timersub(&end, &now, &delta); |
960 | } | |
961 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
962 | if (result < 0) { |
963 | if (errno == EINTR) { | |
964 | DEBUG("select() call was interrupted, repeating"); | |
965 | continue; | |
966 | } else { | |
967 | RETURN_FAIL("select() failed"); | |
968 | } | |
969 | } else if (result == 0) { | |
dc422c04 | 970 | DEBUG("Read timed out"); |
9caa2e86 | 971 | RETURN_INT(bytes_read); |
e3dcf906 ML |
972 | } |
973 | ||
974 | /* Do read. */ | |
975 | result = read(port->fd, ptr, count - bytes_read); | |
976 | ||
977 | if (result < 0) { | |
978 | if (errno == EAGAIN) | |
979 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
980 | continue; | |
981 | else | |
982 | /* This is an actual failure. */ | |
983 | RETURN_FAIL("read() failed"); | |
984 | } | |
985 | ||
986 | bytes_read += result; | |
987 | ptr += result; | |
988 | } | |
989 | ||
9caa2e86 | 990 | RETURN_INT(bytes_read); |
e3dcf906 ML |
991 | #endif |
992 | } | |
993 | ||
970f279a AJ |
994 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
995 | size_t count) | |
74510d4b | 996 | { |
c33efc48 ML |
997 | TRACE("%p, %p, %d", port, buf, count); |
998 | ||
dec10e31 | 999 | CHECK_OPEN_PORT(); |
74510d4b ML |
1000 | |
1001 | if (!buf) | |
c33efc48 | 1002 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1003 | |
7890cef6 | 1004 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1005 | |
74510d4b | 1006 | #ifdef _WIN32 |
e3dcf906 | 1007 | DWORD bytes_read; |
f446cfbf | 1008 | DWORD wait_result; |
f92f1f0c | 1009 | |
e3dcf906 ML |
1010 | /* Set timeout. */ |
1011 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1012 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
1013 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1014 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1015 | ||
1016 | /* Do read. */ | |
1017 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1018 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1019 | |
1020 | /* Get number of bytes read. */ | |
1622ef60 ML |
1021 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1022 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 1023 | |
f446cfbf ML |
1024 | /* Restart wait operation if needed. */ |
1025 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, &wait_result, FALSE)) { | |
1026 | /* Previous wait completed, start a new one. */ | |
6f1186aa ML |
1027 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { |
1028 | if (GetLastError() != ERROR_IO_PENDING) | |
1029 | RETURN_FAIL("WaitCommEvent() failed"); | |
1030 | } | |
f446cfbf ML |
1031 | } else if (GetLastError() != ERROR_IO_INCOMPLETE) { |
1032 | RETURN_FAIL("GetOverlappedResult() failed"); | |
6f1186aa ML |
1033 | } |
1034 | ||
9caa2e86 | 1035 | RETURN_INT(bytes_read); |
74510d4b ML |
1036 | #else |
1037 | ssize_t bytes_read; | |
f92f1f0c | 1038 | |
74510d4b | 1039 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1040 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1041 | if (errno == EAGAIN) |
1042 | /* No bytes available. */ | |
33d5ff47 ML |
1043 | bytes_read = 0; |
1044 | else | |
1045 | /* This is an actual failure. */ | |
1046 | RETURN_FAIL("read() failed"); | |
1047 | } | |
9caa2e86 | 1048 | RETURN_INT(bytes_read); |
74510d4b ML |
1049 | #endif |
1050 | } | |
1051 | ||
970f279a | 1052 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1053 | { |
1054 | TRACE("%p", port); | |
1055 | ||
1056 | CHECK_OPEN_PORT(); | |
1057 | ||
7890cef6 | 1058 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1059 | |
1060 | #ifdef _WIN32 | |
1061 | DWORD errors; | |
1062 | COMSTAT comstat; | |
1063 | ||
1064 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1065 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1066 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1067 | #else |
1068 | int bytes_waiting; | |
1069 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1070 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1071 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1072 | #endif |
1073 | } | |
1074 | ||
970f279a | 1075 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1076 | { |
1077 | TRACE("%p", port); | |
1078 | ||
1079 | CHECK_OPEN_PORT(); | |
1080 | ||
7890cef6 | 1081 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1082 | |
1083 | #ifdef _WIN32 | |
1084 | DWORD errors; | |
1085 | COMSTAT comstat; | |
1086 | ||
1087 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1088 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1089 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1090 | #else |
1091 | int bytes_waiting; | |
1092 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1093 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1094 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1095 | #endif |
1096 | } | |
1097 | ||
970f279a | 1098 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1099 | { |
1100 | struct sp_event_set *result; | |
1101 | ||
1102 | TRACE("%p", result_ptr); | |
1103 | ||
1104 | if (!result_ptr) | |
1105 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1106 | ||
1107 | *result_ptr = NULL; | |
1108 | ||
1109 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1110 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1111 | ||
1112 | memset(result, 0, sizeof(struct sp_event_set)); | |
1113 | ||
1114 | *result_ptr = result; | |
1115 | ||
1116 | RETURN_OK(); | |
1117 | } | |
1118 | ||
1119 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1120 | event_handle handle, enum sp_event mask) | |
1121 | { | |
1122 | void *new_handles; | |
1123 | enum sp_event *new_masks; | |
1124 | ||
1125 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1126 | ||
1127 | if (!(new_handles = realloc(event_set->handles, | |
1128 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1129 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa ML |
1130 | |
1131 | if (!(new_masks = realloc(event_set->masks, | |
1132 | sizeof(enum sp_event) * (event_set->count + 1)))) | |
dc422c04 | 1133 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa ML |
1134 | |
1135 | event_set->handles = new_handles; | |
1136 | event_set->masks = new_masks; | |
1137 | ||
1138 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1139 | event_set->masks[event_set->count] = mask; | |
1140 | ||
1141 | event_set->count++; | |
1142 | ||
1143 | RETURN_OK(); | |
1144 | } | |
1145 | ||
970f279a | 1146 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1147 | const struct sp_port *port, enum sp_event mask) |
1148 | { | |
1149 | TRACE("%p, %p, %d", event_set, port, mask); | |
1150 | ||
1151 | if (!event_set) | |
1152 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1153 | ||
1154 | if (!port) | |
1155 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1156 | ||
1157 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1158 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1159 | ||
1160 | if (!mask) | |
1161 | RETURN_OK(); | |
1162 | ||
1163 | #ifdef _WIN32 | |
1164 | enum sp_event handle_mask; | |
1165 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1166 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1167 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1168 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1169 | #else | |
1170 | TRY(add_handle(event_set, port->fd, mask)); | |
1171 | #endif | |
1172 | ||
1173 | RETURN_OK(); | |
1174 | } | |
1175 | ||
970f279a | 1176 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1177 | { |
1178 | TRACE("%p", event_set); | |
1179 | ||
1180 | if (!event_set) { | |
1181 | DEBUG("Null event set"); | |
1182 | RETURN(); | |
1183 | } | |
1184 | ||
1185 | DEBUG("Freeing event set"); | |
1186 | ||
1187 | if (event_set->handles) | |
1188 | free(event_set->handles); | |
1189 | if (event_set->masks) | |
1190 | free(event_set->masks); | |
1191 | ||
1192 | free(event_set); | |
1193 | ||
1194 | RETURN(); | |
1195 | } | |
1196 | ||
970f279a AJ |
1197 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1198 | unsigned int timeout) | |
6f1186aa ML |
1199 | { |
1200 | TRACE("%p, %d", event_set, timeout); | |
1201 | ||
1202 | if (!event_set) | |
1203 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1204 | ||
1205 | #ifdef _WIN32 | |
1206 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1207 | timeout ? timeout : INFINITE) == WAIT_FAILED) | |
1208 | RETURN_FAIL("WaitForMultipleObjects() failed"); | |
1209 | ||
1210 | RETURN_OK(); | |
1211 | #else | |
1212 | struct timeval start, delta, now, end = {0, 0}; | |
1213 | int result, timeout_remaining; | |
1214 | struct pollfd *pollfds; | |
1215 | unsigned int i; | |
1216 | ||
1217 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1218 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1219 | ||
1220 | for (i = 0; i < event_set->count; i++) { | |
1221 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1222 | pollfds[i].events = 0; | |
1223 | pollfds[i].revents = 0; | |
1224 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1225 | pollfds[i].events |= POLLIN; | |
1226 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1227 | pollfds[i].events |= POLLOUT; | |
1228 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1229 | pollfds[i].events |= POLLERR; | |
1230 | } | |
1231 | ||
1232 | if (timeout) { | |
1233 | /* Get time at start of operation. */ | |
1234 | gettimeofday(&start, NULL); | |
1235 | /* Define duration of timeout. */ | |
1236 | delta.tv_sec = timeout / 1000; | |
1237 | delta.tv_usec = (timeout % 1000) * 1000; | |
1238 | /* Calculate time at which we should give up. */ | |
1239 | timeradd(&start, &delta, &end); | |
1240 | } | |
1241 | ||
1242 | /* Loop until an event occurs. */ | |
dc422c04 | 1243 | while (1) { |
6f1186aa ML |
1244 | if (timeout) { |
1245 | gettimeofday(&now, NULL); | |
1246 | if (timercmp(&now, &end, >)) { | |
dc422c04 | 1247 | DEBUG("Wait timed out"); |
6f1186aa ML |
1248 | break; |
1249 | } | |
1250 | timersub(&end, &now, &delta); | |
1251 | timeout_remaining = delta.tv_sec * 1000 + delta.tv_usec / 1000; | |
1252 | } | |
1253 | ||
1254 | result = poll(pollfds, event_set->count, timeout ? timeout_remaining : -1); | |
1255 | ||
1256 | if (result < 0) { | |
1257 | if (errno == EINTR) { | |
1258 | DEBUG("poll() call was interrupted, repeating"); | |
1259 | continue; | |
1260 | } else { | |
1261 | free(pollfds); | |
1262 | RETURN_FAIL("poll() failed"); | |
1263 | } | |
1264 | } else if (result == 0) { | |
1265 | DEBUG("poll() timed out"); | |
1266 | break; | |
1267 | } else { | |
1268 | DEBUG("poll() completed"); | |
1269 | break; | |
1270 | } | |
1271 | } | |
1272 | ||
1273 | free(pollfds); | |
1274 | RETURN_OK(); | |
1275 | #endif | |
1276 | } | |
1277 | ||
5cea279a | 1278 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1279 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1280 | { | |
1281 | void *data; | |
1282 | ||
c33efc48 ML |
1283 | TRACE("%d, %p", fd, baudrate); |
1284 | ||
ea667be7 ML |
1285 | DEBUG("Getting baud rate"); |
1286 | ||
7a6d2196 | 1287 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1288 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1289 | |
8d43110a ML |
1290 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1291 | free(data); | |
dc422c04 | 1292 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1293 | } |
7a6d2196 ML |
1294 | |
1295 | *baudrate = get_termios_speed(data); | |
1296 | ||
8d43110a ML |
1297 | free(data); |
1298 | ||
c33efc48 | 1299 | RETURN_OK(); |
7a6d2196 ML |
1300 | } |
1301 | ||
1302 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1303 | { | |
1304 | void *data; | |
1305 | ||
c33efc48 ML |
1306 | TRACE("%d, %d", fd, baudrate); |
1307 | ||
ea667be7 ML |
1308 | DEBUG("Getting baud rate"); |
1309 | ||
7a6d2196 | 1310 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1311 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1312 | |
8d43110a ML |
1313 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1314 | free(data); | |
dc422c04 | 1315 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1316 | } |
7a6d2196 | 1317 | |
ea667be7 ML |
1318 | DEBUG("Setting baud rate"); |
1319 | ||
7a6d2196 ML |
1320 | set_termios_speed(data, baudrate); |
1321 | ||
8d43110a ML |
1322 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1323 | free(data); | |
dc422c04 | 1324 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1325 | } |
1326 | ||
1327 | free(data); | |
7a6d2196 | 1328 | |
c33efc48 | 1329 | RETURN_OK(); |
7a6d2196 | 1330 | } |
5cea279a | 1331 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1332 | |
1333 | #ifdef USE_TERMIOX | |
bd791fe1 | 1334 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1335 | { |
bd791fe1 | 1336 | void *termx; |
40978c2b | 1337 | |
bd791fe1 | 1338 | TRACE("%d, %p", fd, data); |
c33efc48 | 1339 | |
ea667be7 ML |
1340 | DEBUG("Getting advanced flow control"); |
1341 | ||
bd791fe1 | 1342 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1343 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1344 | |
bd791fe1 ML |
1345 | if (ioctl(fd, TCGETX, termx) < 0) { |
1346 | free(termx); | |
dc422c04 | 1347 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1348 | } |
40978c2b | 1349 | |
bd791fe1 ML |
1350 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1351 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1352 | |
bd791fe1 | 1353 | free(termx); |
8d43110a | 1354 | |
c33efc48 | 1355 | RETURN_OK(); |
40978c2b ML |
1356 | } |
1357 | ||
bd791fe1 | 1358 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1359 | { |
bd791fe1 | 1360 | void *termx; |
40978c2b | 1361 | |
bd791fe1 | 1362 | TRACE("%d, %p", fd, data); |
c33efc48 | 1363 | |
ea667be7 ML |
1364 | DEBUG("Getting advanced flow control"); |
1365 | ||
bd791fe1 | 1366 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1367 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1368 | |
bd791fe1 ML |
1369 | if (ioctl(fd, TCGETX, termx) < 0) { |
1370 | free(termx); | |
dc422c04 | 1371 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1372 | } |
40978c2b | 1373 | |
ea667be7 ML |
1374 | DEBUG("Setting advanced flow control"); |
1375 | ||
bd791fe1 ML |
1376 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1377 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1378 | |
bd791fe1 ML |
1379 | if (ioctl(fd, TCSETX, termx) < 0) { |
1380 | free(termx); | |
dc422c04 | 1381 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1382 | } |
1383 | ||
bd791fe1 | 1384 | free(termx); |
40978c2b | 1385 | |
c33efc48 | 1386 | RETURN_OK(); |
40978c2b ML |
1387 | } |
1388 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1389 | |
eb6ed20f ML |
1390 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1391 | struct sp_port_config *config) | |
8094e4a0 | 1392 | { |
da2748bf | 1393 | unsigned int i; |
cbf628c7 | 1394 | |
c33efc48 ML |
1395 | TRACE("%p, %p, %p", port, data, config); |
1396 | ||
7890cef6 | 1397 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1398 | |
8094e4a0 | 1399 | #ifdef _WIN32 |
e33ab9aa | 1400 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1401 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1402 | |
067417af | 1403 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1404 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1405 | config->baudrate = std_baudrates[i].value; |
1406 | break; | |
1407 | } | |
1408 | } | |
1409 | ||
1410 | if (i == NUM_STD_BAUDRATES) | |
1411 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1412 | config->baudrate = data->dcb.BaudRate; |
067417af | 1413 | |
e33ab9aa | 1414 | config->bits = data->dcb.ByteSize; |
067417af | 1415 | |
e33ab9aa ML |
1416 | if (data->dcb.fParity) |
1417 | switch (data->dcb.Parity) { | |
067417af ML |
1418 | case NOPARITY: |
1419 | config->parity = SP_PARITY_NONE; | |
1420 | break; | |
e432ce60 ML |
1421 | case ODDPARITY: |
1422 | config->parity = SP_PARITY_ODD; | |
1423 | break; | |
067417af ML |
1424 | case EVENPARITY: |
1425 | config->parity = SP_PARITY_EVEN; | |
1426 | break; | |
e432ce60 ML |
1427 | case MARKPARITY: |
1428 | config->parity = SP_PARITY_MARK; | |
1429 | break; | |
1430 | case SPACEPARITY: | |
1431 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1432 | break; |
1433 | default: | |
1434 | config->parity = -1; | |
1435 | } | |
1436 | else | |
1437 | config->parity = SP_PARITY_NONE; | |
1438 | ||
e33ab9aa | 1439 | switch (data->dcb.StopBits) { |
067417af ML |
1440 | case ONESTOPBIT: |
1441 | config->stopbits = 1; | |
1442 | break; | |
1443 | case TWOSTOPBITS: | |
1444 | config->stopbits = 2; | |
1445 | break; | |
1446 | default: | |
1447 | config->stopbits = -1; | |
1448 | } | |
1449 | ||
e33ab9aa | 1450 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1451 | case RTS_CONTROL_DISABLE: |
1452 | config->rts = SP_RTS_OFF; | |
1453 | break; | |
1454 | case RTS_CONTROL_ENABLE: | |
1455 | config->rts = SP_RTS_ON; | |
1456 | break; | |
1457 | case RTS_CONTROL_HANDSHAKE: | |
1458 | config->rts = SP_RTS_FLOW_CONTROL; | |
1459 | break; | |
1460 | default: | |
1461 | config->rts = -1; | |
067417af ML |
1462 | } |
1463 | ||
e33ab9aa | 1464 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1465 | |
e33ab9aa | 1466 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1467 | case DTR_CONTROL_DISABLE: |
1468 | config->dtr = SP_DTR_OFF; | |
1469 | break; | |
1470 | case DTR_CONTROL_ENABLE: | |
1471 | config->dtr = SP_DTR_ON; | |
1472 | break; | |
1473 | case DTR_CONTROL_HANDSHAKE: | |
1474 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1475 | break; | |
1476 | default: | |
1477 | config->dtr = -1; | |
067417af ML |
1478 | } |
1479 | ||
e33ab9aa ML |
1480 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1481 | ||
c6754b45 ML |
1482 | if (data->dcb.fInX) { |
1483 | if (data->dcb.fOutX) | |
1484 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1485 | else | |
1486 | config->xon_xoff = SP_XONXOFF_IN; | |
1487 | } else { | |
1488 | if (data->dcb.fOutX) | |
1489 | config->xon_xoff = SP_XONXOFF_OUT; | |
1490 | else | |
1491 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1492 | } | |
1493 | ||
e33ab9aa ML |
1494 | #else // !_WIN32 |
1495 | ||
1496 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1497 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1498 | |
1499 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1500 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1501 | |
1502 | #ifdef USE_TERMIOX | |
bd791fe1 | 1503 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1504 | |
1505 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1506 | data->termiox_supported = 0; | |
1507 | else if (ret < 0) | |
c33efc48 | 1508 | RETURN_CODEVAL(ret); |
68ec29db ML |
1509 | else |
1510 | data->termiox_supported = 1; | |
1511 | #else | |
1512 | data->termiox_supported = 0; | |
40978c2b ML |
1513 | #endif |
1514 | ||
067417af | 1515 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1516 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1517 | config->baudrate = std_baudrates[i].value; |
1518 | break; | |
1519 | } | |
1520 | } | |
1521 | ||
31b3a8f5 MH |
1522 | if (i == NUM_STD_BAUDRATES) { |
1523 | #ifdef __APPLE__ | |
1524 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1525 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1526 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1527 | #else |
067417af | 1528 | config->baudrate = -1; |
31b3a8f5 MH |
1529 | #endif |
1530 | } | |
067417af | 1531 | |
e33ab9aa | 1532 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1533 | case CS8: |
1534 | config->bits = 8; | |
1535 | break; | |
1536 | case CS7: | |
1537 | config->bits = 7; | |
1538 | break; | |
1539 | case CS6: | |
1540 | config->bits = 6; | |
1541 | break; | |
1542 | case CS5: | |
1543 | config->bits = 5; | |
1544 | break; | |
1545 | default: | |
1546 | config->bits = -1; | |
1547 | } | |
1548 | ||
e33ab9aa | 1549 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1550 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1551 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1552 | config->parity = -1; |
c3e05092 | 1553 | #ifdef CMSPAR |
e432ce60 ML |
1554 | else if (data->term.c_cflag & CMSPAR) |
1555 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1556 | #endif |
067417af | 1557 | else |
e33ab9aa | 1558 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1559 | |
e33ab9aa | 1560 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1561 | |
e33ab9aa | 1562 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1563 | config->rts = SP_RTS_FLOW_CONTROL; |
1564 | config->cts = SP_CTS_FLOW_CONTROL; | |
1565 | } else { | |
bd791fe1 | 1566 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1567 | config->rts = SP_RTS_FLOW_CONTROL; |
1568 | else | |
1569 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1570 | ||
bd791fe1 | 1571 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1572 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1573 | } |
1574 | ||
bd791fe1 | 1575 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1576 | config->dtr = SP_DTR_FLOW_CONTROL; |
1577 | else | |
1578 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1579 | ||
bd791fe1 | 1580 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1581 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1582 | |
e29b93a5 ML |
1583 | if (data->term.c_iflag & IXOFF) { |
1584 | if (data->term.c_iflag & IXON) | |
1585 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1586 | else | |
1587 | config->xon_xoff = SP_XONXOFF_IN; | |
1588 | } else { | |
1589 | if (data->term.c_iflag & IXON) | |
1590 | config->xon_xoff = SP_XONXOFF_OUT; | |
1591 | else | |
1592 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1593 | } | |
067417af ML |
1594 | #endif |
1595 | ||
c33efc48 | 1596 | RETURN_OK(); |
067417af ML |
1597 | } |
1598 | ||
7a6d2196 | 1599 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1600 | const struct sp_port_config *config) |
18fc2dd1 | 1601 | { |
e33ab9aa | 1602 | unsigned int i; |
31b3a8f5 MH |
1603 | #ifdef __APPLE__ |
1604 | BAUD_TYPE baud_nonstd; | |
1605 | ||
1606 | baud_nonstd = B0; | |
1607 | #endif | |
5cea279a | 1608 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1609 | int baud_nonstd = 0; |
1610 | #endif | |
18fc2dd1 | 1611 | |
c33efc48 ML |
1612 | TRACE("%p, %p, %p", port, data, config); |
1613 | ||
7890cef6 | 1614 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1615 | |
e33ab9aa | 1616 | #ifdef _WIN32 |
eac329d2 | 1617 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1618 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1619 | if (config->baudrate == std_baudrates[i].value) { | |
1620 | data->dcb.BaudRate = std_baudrates[i].index; | |
1621 | break; | |
1622 | } | |
1623 | } | |
18fc2dd1 | 1624 | |
e33ab9aa ML |
1625 | if (i == NUM_STD_BAUDRATES) |
1626 | data->dcb.BaudRate = config->baudrate; | |
1627 | } | |
18fc2dd1 | 1628 | |
e33ab9aa ML |
1629 | if (config->bits >= 0) |
1630 | data->dcb.ByteSize = config->bits; | |
1631 | ||
1632 | if (config->parity >= 0) { | |
1633 | switch (config->parity) { | |
e33ab9aa ML |
1634 | case SP_PARITY_NONE: |
1635 | data->dcb.Parity = NOPARITY; | |
1636 | break; | |
e432ce60 ML |
1637 | case SP_PARITY_ODD: |
1638 | data->dcb.Parity = ODDPARITY; | |
1639 | break; | |
e33ab9aa ML |
1640 | case SP_PARITY_EVEN: |
1641 | data->dcb.Parity = EVENPARITY; | |
1642 | break; | |
e432ce60 ML |
1643 | case SP_PARITY_MARK: |
1644 | data->dcb.Parity = MARKPARITY; | |
1645 | break; | |
1646 | case SP_PARITY_SPACE: | |
1647 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1648 | break; |
1649 | default: | |
c33efc48 | 1650 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1651 | } |
18fc2dd1 ML |
1652 | } |
1653 | ||
e33ab9aa ML |
1654 | if (config->stopbits >= 0) { |
1655 | switch (config->stopbits) { | |
1656 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1657 | case 1: | |
1658 | data->dcb.StopBits = ONESTOPBIT; | |
1659 | break; | |
1660 | case 2: | |
1661 | data->dcb.StopBits = TWOSTOPBITS; | |
1662 | break; | |
1663 | default: | |
c33efc48 | 1664 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1665 | } |
1666 | } | |
1667 | ||
1668 | if (config->rts >= 0) { | |
1669 | switch (config->rts) { | |
1670 | case SP_RTS_OFF: | |
1671 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1672 | break; | |
1673 | case SP_RTS_ON: | |
1674 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1675 | break; | |
1676 | case SP_RTS_FLOW_CONTROL: | |
1677 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1678 | break; | |
1679 | default: | |
c33efc48 | 1680 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1681 | } |
1682 | } | |
1683 | ||
1684 | if (config->cts >= 0) { | |
1685 | switch (config->cts) { | |
1686 | case SP_CTS_IGNORE: | |
1687 | data->dcb.fOutxCtsFlow = FALSE; | |
1688 | break; | |
1689 | case SP_CTS_FLOW_CONTROL: | |
1690 | data->dcb.fOutxCtsFlow = TRUE; | |
1691 | break; | |
1692 | default: | |
c33efc48 | 1693 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1694 | } |
1695 | } | |
1696 | ||
1697 | if (config->dtr >= 0) { | |
1698 | switch (config->dtr) { | |
1699 | case SP_DTR_OFF: | |
1700 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1701 | break; | |
1702 | case SP_DTR_ON: | |
1703 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1704 | break; | |
1705 | case SP_DTR_FLOW_CONTROL: | |
1706 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1707 | break; | |
1708 | default: | |
c33efc48 | 1709 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1710 | } |
1711 | } | |
1712 | ||
1713 | if (config->dsr >= 0) { | |
1714 | switch (config->dsr) { | |
1715 | case SP_DSR_IGNORE: | |
1716 | data->dcb.fOutxDsrFlow = FALSE; | |
1717 | break; | |
1718 | case SP_DSR_FLOW_CONTROL: | |
1719 | data->dcb.fOutxDsrFlow = TRUE; | |
1720 | break; | |
1721 | default: | |
c33efc48 | 1722 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1723 | } |
18fc2dd1 ML |
1724 | } |
1725 | ||
e33ab9aa ML |
1726 | if (config->xon_xoff >= 0) { |
1727 | switch (config->xon_xoff) { | |
1728 | case SP_XONXOFF_DISABLED: | |
1729 | data->dcb.fInX = FALSE; | |
1730 | data->dcb.fOutX = FALSE; | |
1731 | break; | |
1732 | case SP_XONXOFF_IN: | |
1733 | data->dcb.fInX = TRUE; | |
1734 | data->dcb.fOutX = FALSE; | |
1735 | break; | |
1736 | case SP_XONXOFF_OUT: | |
1737 | data->dcb.fInX = FALSE; | |
1738 | data->dcb.fOutX = TRUE; | |
1739 | break; | |
1740 | case SP_XONXOFF_INOUT: | |
1741 | data->dcb.fInX = TRUE; | |
1742 | data->dcb.fOutX = TRUE; | |
1743 | break; | |
1744 | default: | |
c33efc48 | 1745 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1746 | } |
1747 | } | |
1748 | ||
1749 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1750 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1751 | |
31b3a8f5 | 1752 | #else /* !_WIN32 */ |
e33ab9aa | 1753 | |
7a6d2196 ML |
1754 | int controlbits; |
1755 | ||
eac329d2 | 1756 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1757 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1758 | if (config->baudrate == std_baudrates[i].value) { | |
1759 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1760 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1761 | |
1762 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1763 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1764 | break; |
1765 | } | |
1766 | } | |
1767 | ||
31b3a8f5 MH |
1768 | /* Non-standard baud rate */ |
1769 | if (i == NUM_STD_BAUDRATES) { | |
1770 | #ifdef __APPLE__ | |
24abdb68 | 1771 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1772 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1773 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1774 | baud_nonstd = config->baudrate; |
5cea279a | 1775 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1776 | baud_nonstd = 1; |
31b3a8f5 | 1777 | #else |
c33efc48 | 1778 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1779 | #endif |
1780 | } | |
e33ab9aa ML |
1781 | } |
1782 | ||
1783 | if (config->bits >= 0) { | |
1784 | data->term.c_cflag &= ~CSIZE; | |
1785 | switch (config->bits) { | |
1786 | case 8: | |
1787 | data->term.c_cflag |= CS8; | |
1788 | break; | |
1789 | case 7: | |
1790 | data->term.c_cflag |= CS7; | |
1791 | break; | |
1792 | case 6: | |
1793 | data->term.c_cflag |= CS6; | |
1794 | break; | |
23922313 UH |
1795 | case 5: |
1796 | data->term.c_cflag |= CS5; | |
1797 | break; | |
e33ab9aa | 1798 | default: |
c33efc48 | 1799 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1800 | } |
1801 | } | |
1802 | ||
1803 | if (config->parity >= 0) { | |
1804 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1805 | data->term.c_cflag &= ~(PARENB | PARODD); |
1806 | #ifdef CMSPAR | |
1807 | data->term.c_cflag &= ~CMSPAR; | |
1808 | #endif | |
e33ab9aa ML |
1809 | switch (config->parity) { |
1810 | case SP_PARITY_NONE: | |
1811 | data->term.c_iflag |= IGNPAR; | |
1812 | break; | |
1813 | case SP_PARITY_EVEN: | |
1814 | data->term.c_cflag |= PARENB; | |
1815 | break; | |
1816 | case SP_PARITY_ODD: | |
1817 | data->term.c_cflag |= PARENB | PARODD; | |
1818 | break; | |
afb518f0 | 1819 | #ifdef CMSPAR |
e432ce60 | 1820 | case SP_PARITY_MARK: |
c3e05092 | 1821 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 1822 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
1823 | break; |
1824 | case SP_PARITY_SPACE: | |
c3e05092 | 1825 | data->term.c_cflag |= PARENB; |
c3e05092 | 1826 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 1827 | break; |
afb518f0 ML |
1828 | #else |
1829 | case SP_PARITY_MARK: | |
1830 | case SP_PARITY_SPACE: | |
1831 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
1832 | #endif | |
e33ab9aa | 1833 | default: |
c33efc48 | 1834 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1835 | } |
1836 | } | |
1837 | ||
1838 | if (config->stopbits >= 0) { | |
1839 | data->term.c_cflag &= ~CSTOPB; | |
1840 | switch (config->stopbits) { | |
1841 | case 1: | |
1842 | data->term.c_cflag &= ~CSTOPB; | |
1843 | break; | |
1844 | case 2: | |
1845 | data->term.c_cflag |= CSTOPB; | |
1846 | break; | |
1847 | default: | |
c33efc48 | 1848 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1849 | } |
1850 | } | |
1851 | ||
eac329d2 | 1852 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 1853 | if (data->termiox_supported) { |
bd791fe1 | 1854 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
1855 | switch (config->rts) { |
1856 | case SP_RTS_OFF: | |
1857 | case SP_RTS_ON: | |
1858 | controlbits = TIOCM_RTS; | |
1859 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1860 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1861 | break; |
1862 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 1863 | data->rts_flow = 1; |
68ec29db ML |
1864 | break; |
1865 | default: | |
1866 | break; | |
e33ab9aa | 1867 | } |
68ec29db | 1868 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 1869 | data->cts_flow = 1; |
e33ab9aa | 1870 | |
bd791fe1 | 1871 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 1872 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1873 | else |
1874 | data->term.c_iflag &= ~CRTSCTS; | |
1875 | } else { | |
1876 | /* Asymmetric use of RTS/CTS not supported. */ | |
1877 | if (data->term.c_iflag & CRTSCTS) { | |
1878 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1879 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1880 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1881 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1882 | } |
1883 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1884 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1885 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1886 | } |
e33ab9aa | 1887 | } else { |
68ec29db ML |
1888 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1889 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1890 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1891 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1892 | } |
1893 | ||
1894 | if (config->rts >= 0) { | |
1895 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1896 | data->term.c_iflag |= CRTSCTS; | |
1897 | } else { | |
1898 | controlbits = TIOCM_RTS; | |
1899 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1900 | &controlbits) < 0) | |
c33efc48 | 1901 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1902 | } |
e33ab9aa ML |
1903 | } |
1904 | } | |
1905 | } | |
1906 | ||
eac329d2 | 1907 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 1908 | if (data->termiox_supported) { |
bd791fe1 | 1909 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
1910 | switch (config->dtr) { |
1911 | case SP_DTR_OFF: | |
1912 | case SP_DTR_ON: | |
1913 | controlbits = TIOCM_DTR; | |
1914 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1915 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1916 | break; |
1917 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 1918 | data->dtr_flow = 1; |
68ec29db ML |
1919 | break; |
1920 | default: | |
1921 | break; | |
1922 | } | |
1923 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 1924 | data->dsr_flow = 1; |
68ec29db ML |
1925 | } else { |
1926 | /* DTR/DSR flow control not supported. */ | |
1927 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1928 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1929 | |
68ec29db ML |
1930 | if (config->dtr >= 0) { |
1931 | controlbits = TIOCM_DTR; | |
1932 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1933 | &controlbits) < 0) | |
c33efc48 | 1934 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1935 | } |
e33ab9aa ML |
1936 | } |
1937 | } | |
1938 | ||
1939 | if (config->xon_xoff >= 0) { | |
1940 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1941 | switch (config->xon_xoff) { | |
1942 | case SP_XONXOFF_DISABLED: | |
1943 | break; | |
1944 | case SP_XONXOFF_IN: | |
1945 | data->term.c_iflag |= IXOFF; | |
1946 | break; | |
1947 | case SP_XONXOFF_OUT: | |
1948 | data->term.c_iflag |= IXON | IXANY; | |
1949 | break; | |
1950 | case SP_XONXOFF_INOUT: | |
1951 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1952 | break; | |
1953 | default: | |
c33efc48 | 1954 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1955 | } |
1956 | } | |
1957 | ||
3f5c06d0 | 1958 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 1959 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1960 | |
1961 | #ifdef __APPLE__ | |
1962 | if (baud_nonstd != B0) { | |
1963 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1964 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
1965 | /* |
1966 | * Set baud rates in data->term to correct, but incompatible | |
1967 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
1968 | */ | |
31b3a8f5 | 1969 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 1970 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1971 | } |
7a6d2196 | 1972 | #elif defined(__linux__) |
5cea279a | 1973 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1974 | if (baud_nonstd) |
1975 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 1976 | #endif |
40978c2b | 1977 | #ifdef USE_TERMIOX |
68ec29db | 1978 | if (data->termiox_supported) |
bd791fe1 | 1979 | TRY(set_flow(port->fd, data)); |
40978c2b | 1980 | #endif |
7a6d2196 | 1981 | #endif |
31b3a8f5 MH |
1982 | |
1983 | #endif /* !_WIN32 */ | |
e33ab9aa | 1984 | |
c33efc48 | 1985 | RETURN_OK(); |
e33ab9aa ML |
1986 | } |
1987 | ||
970f279a | 1988 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 1989 | { |
59131d60 | 1990 | struct sp_port_config *config; |
9b1502ef | 1991 | |
00d8c56d UH |
1992 | TRACE("%p", config_ptr); |
1993 | ||
9b1502ef ML |
1994 | if (!config_ptr) |
1995 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
1996 | ||
59131d60 ML |
1997 | *config_ptr = NULL; |
1998 | ||
1999 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 2000 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 2001 | |
59131d60 ML |
2002 | config->baudrate = -1; |
2003 | config->bits = -1; | |
2004 | config->parity = -1; | |
2005 | config->stopbits = -1; | |
2006 | config->rts = -1; | |
2007 | config->cts = -1; | |
2008 | config->dtr = -1; | |
2009 | config->dsr = -1; | |
2010 | ||
2011 | *config_ptr = config; | |
2012 | ||
9b1502ef ML |
2013 | RETURN_OK(); |
2014 | } | |
2015 | ||
970f279a | 2016 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2017 | { |
2018 | TRACE("%p", config); | |
2019 | ||
2020 | if (!config) | |
2021 | DEBUG("Null config"); | |
2022 | else | |
2023 | free(config); | |
2024 | ||
2025 | RETURN(); | |
2026 | } | |
2027 | ||
970f279a AJ |
2028 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2029 | struct sp_port_config *config) | |
70cd37de ML |
2030 | { |
2031 | struct port_data data; | |
2032 | ||
2033 | TRACE("%p, %p", port, config); | |
2034 | ||
2035 | CHECK_OPEN_PORT(); | |
2036 | ||
2037 | if (!config) | |
9b1502ef | 2038 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2039 | |
2040 | TRY(get_config(port, &data, config)); | |
2041 | ||
2042 | RETURN_OK(); | |
2043 | } | |
2044 | ||
970f279a AJ |
2045 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2046 | const struct sp_port_config *config) | |
e33ab9aa | 2047 | { |
8f189c4c | 2048 | struct port_data data; |
e33ab9aa ML |
2049 | struct sp_port_config prev_config; |
2050 | ||
c33efc48 ML |
2051 | TRACE("%p, %p", port, config); |
2052 | ||
dec10e31 | 2053 | CHECK_OPEN_PORT(); |
823690ae ML |
2054 | |
2055 | if (!config) | |
c33efc48 | 2056 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2057 | |
e33ab9aa ML |
2058 | TRY(get_config(port, &data, &prev_config)); |
2059 | TRY(set_config(port, &data, config)); | |
74510d4b | 2060 | |
c33efc48 | 2061 | RETURN_OK(); |
74510d4b ML |
2062 | } |
2063 | ||
9b1502ef | 2064 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2065 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2066 | struct port_data data; \ |
e33ab9aa | 2067 | struct sp_port_config config; \ |
c33efc48 | 2068 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2069 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2070 | TRY(get_config(port, &data, &config)); \ |
2071 | config.x = x; \ | |
2072 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2073 | RETURN_OK(); \ |
9b1502ef | 2074 | } \ |
970f279a AJ |
2075 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2076 | type *x) { \ | |
00d8c56d | 2077 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2078 | if (!config) \ |
2079 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2080 | *x = config->x; \ | |
2081 | RETURN_OK(); \ | |
2082 | } \ | |
970f279a AJ |
2083 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2084 | type x) { \ | |
9b1502ef ML |
2085 | TRACE("%p, %d", config, x); \ |
2086 | if (!config) \ | |
2087 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2088 | config->x = x; \ | |
2089 | RETURN_OK(); \ | |
9069c2fb ML |
2090 | } |
2091 | ||
9b1502ef ML |
2092 | CREATE_ACCESSORS(baudrate, int) |
2093 | CREATE_ACCESSORS(bits, int) | |
2094 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2095 | CREATE_ACCESSORS(stopbits, int) | |
2096 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2097 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2098 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2099 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2100 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2101 | ||
970f279a AJ |
2102 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2103 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2104 | { |
9b1502ef ML |
2105 | if (!config) |
2106 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2107 | |
2108 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2109 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2110 | |
e33ab9aa | 2111 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2112 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2113 | else |
9b1502ef | 2114 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2115 | |
2116 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2117 | config->rts = SP_RTS_FLOW_CONTROL; |
2118 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2119 | } else { |
9b1502ef ML |
2120 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2121 | config->rts = SP_RTS_ON; | |
2122 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2123 | } |
2124 | ||
2125 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2126 | config->dtr = SP_DTR_FLOW_CONTROL; |
2127 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2128 | } else { |
9b1502ef ML |
2129 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2130 | config->dtr = SP_DTR_ON; | |
2131 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2132 | } |
2133 | ||
9b1502ef ML |
2134 | RETURN_OK(); |
2135 | } | |
2136 | ||
970f279a AJ |
2137 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2138 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2139 | { |
2140 | struct port_data data; | |
2141 | struct sp_port_config config; | |
2142 | ||
2143 | TRACE("%p, %d", port, flowcontrol); | |
2144 | ||
2145 | CHECK_OPEN_PORT(); | |
2146 | ||
2147 | TRY(get_config(port, &data, &config)); | |
2148 | ||
2149 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2150 | ||
e33ab9aa ML |
2151 | TRY(set_config(port, &data, &config)); |
2152 | ||
c33efc48 | 2153 | RETURN_OK(); |
e33ab9aa ML |
2154 | } |
2155 | ||
970f279a AJ |
2156 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2157 | enum sp_signal *signals) | |
8cf7c697 | 2158 | { |
c33efc48 ML |
2159 | TRACE("%p, %p", port, signals); |
2160 | ||
dec10e31 | 2161 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2162 | |
2163 | if (!signals) | |
c33efc48 | 2164 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2165 | |
7890cef6 | 2166 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2167 | |
8cf7c697 ML |
2168 | *signals = 0; |
2169 | #ifdef _WIN32 | |
2170 | DWORD bits; | |
2171 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2172 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2173 | if (bits & MS_CTS_ON) |
2174 | *signals |= SP_SIG_CTS; | |
2175 | if (bits & MS_DSR_ON) | |
2176 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2177 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2178 | *signals |= SP_SIG_DCD; |
2179 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2180 | *signals |= SP_SIG_RI; |
2181 | #else | |
2182 | int bits; | |
2183 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2184 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2185 | if (bits & TIOCM_CTS) |
2186 | *signals |= SP_SIG_CTS; | |
2187 | if (bits & TIOCM_DSR) | |
2188 | *signals |= SP_SIG_DSR; | |
2189 | if (bits & TIOCM_CAR) | |
2190 | *signals |= SP_SIG_DCD; | |
2191 | if (bits & TIOCM_RNG) | |
2192 | *signals |= SP_SIG_RI; | |
2193 | #endif | |
c33efc48 | 2194 | RETURN_OK(); |
8cf7c697 ML |
2195 | } |
2196 | ||
970f279a | 2197 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2198 | { |
c33efc48 ML |
2199 | TRACE("%p", port); |
2200 | ||
dec10e31 | 2201 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2202 | #ifdef _WIN32 |
2203 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2204 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2205 | #else |
2206 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2207 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2208 | #endif |
2209 | ||
c33efc48 | 2210 | RETURN_OK(); |
90cc3ee6 ML |
2211 | } |
2212 | ||
970f279a | 2213 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2214 | { |
c33efc48 ML |
2215 | TRACE("%p", port); |
2216 | ||
dec10e31 | 2217 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2218 | #ifdef _WIN32 |
2219 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2220 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2221 | #else |
2222 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2223 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2224 | #endif |
2225 | ||
c33efc48 | 2226 | RETURN_OK(); |
90cc3ee6 ML |
2227 | } |
2228 | ||
970f279a | 2229 | SP_API int sp_last_error_code(void) |
74510d4b | 2230 | { |
7890cef6 | 2231 | TRACE_VOID(); |
74510d4b | 2232 | #ifdef _WIN32 |
9caa2e86 | 2233 | RETURN_INT(GetLastError()); |
74510d4b | 2234 | #else |
9caa2e86 | 2235 | RETURN_INT(errno); |
74510d4b ML |
2236 | #endif |
2237 | } | |
2238 | ||
970f279a | 2239 | SP_API char *sp_last_error_message(void) |
74510d4b | 2240 | { |
7890cef6 | 2241 | TRACE_VOID(); |
c33efc48 | 2242 | |
74510d4b ML |
2243 | #ifdef _WIN32 |
2244 | LPVOID message; | |
2245 | DWORD error = GetLastError(); | |
2246 | ||
2247 | FormatMessage( | |
2248 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2249 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2250 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2251 | NULL, | |
2252 | error, | |
2253 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2254 | (LPTSTR) &message, | |
2255 | 0, NULL ); | |
2256 | ||
9caa2e86 | 2257 | RETURN_STRING(message); |
74510d4b | 2258 | #else |
9caa2e86 | 2259 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2260 | #endif |
2261 | } | |
2262 | ||
970f279a | 2263 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2264 | { |
c33efc48 ML |
2265 | TRACE("%s", message); |
2266 | ||
74510d4b ML |
2267 | #ifdef _WIN32 |
2268 | LocalFree(message); | |
64eec30d ML |
2269 | #else |
2270 | (void)message; | |
74510d4b | 2271 | #endif |
c33efc48 ML |
2272 | |
2273 | RETURN(); | |
74510d4b | 2274 | } |
863b35e6 | 2275 | |
970f279a | 2276 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2277 | { |
c33efc48 ML |
2278 | TRACE("%p", handler); |
2279 | ||
863b35e6 | 2280 | sp_debug_handler = handler; |
c33efc48 ML |
2281 | |
2282 | RETURN(); | |
863b35e6 ML |
2283 | } |
2284 | ||
970f279a | 2285 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2286 | { |
2287 | va_list args; | |
2288 | va_start(args, format); | |
2289 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2290 | fputs("sp: ", stderr); |
863b35e6 ML |
2291 | vfprintf(stderr, format, args); |
2292 | } | |
2293 | va_end(args); | |
2294 | } | |
524b0e14 | 2295 | |
970f279a | 2296 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2297 | { |
2298 | return SP_PACKAGE_VERSION_MAJOR; | |
2299 | } | |
2300 | ||
970f279a | 2301 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2302 | { |
2303 | return SP_PACKAGE_VERSION_MINOR; | |
2304 | } | |
2305 | ||
970f279a | 2306 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2307 | { |
2308 | return SP_PACKAGE_VERSION_MICRO; | |
2309 | } | |
2310 | ||
970f279a | 2311 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2312 | { |
2313 | return SP_PACKAGE_VERSION_STRING; | |
2314 | } | |
2315 | ||
970f279a | 2316 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2317 | { |
2318 | return SP_LIB_VERSION_CURRENT; | |
2319 | } | |
2320 | ||
970f279a | 2321 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2322 | { |
2323 | return SP_LIB_VERSION_REVISION; | |
2324 | } | |
2325 | ||
970f279a | 2326 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2327 | { |
2328 | return SP_LIB_VERSION_AGE; | |
2329 | } | |
2330 | ||
970f279a | 2331 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2332 | { |
2333 | return SP_LIB_VERSION_STRING; | |
2334 | } | |
2335 | ||
2336 | /** @} */ |