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Commit | Line | Data |
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74510d4b ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
5 | * Copyright (C) 2010-2012 Uwe Hermann <uwe@hermann-uwe.de> | |
6 | * Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li> | |
31b3a8f5 | 7 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> |
a93fb468 | 8 | * Copyright (C) 2014 Aurelien Jacobs <aurel@gnuage.org> |
74510d4b ML |
9 | * |
10 | * This program is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU Lesser General Public License as | |
12 | * published by the Free Software Foundation, either version 3 of the | |
13 | * License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public License | |
21 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
f6a1fb65 | 24 | #include "libserialport.h" |
e33dcf90 | 25 | #include "libserialport_internal.h" |
da2748bf ML |
26 | |
27 | const struct std_baudrate std_baudrates[] = { | |
28 | #ifdef _WIN32 | |
29 | /* | |
30 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
31 | * have documented CBR_* macros. | |
32 | */ | |
33 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
34 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 35 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 36 | #else |
eac329d2 UH |
37 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
38 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
39 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
40 | BAUD(230400), | |
da2748bf | 41 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 42 | BAUD(460800), |
da2748bf ML |
43 | #endif |
44 | #endif | |
45 | }; | |
46 | ||
863b35e6 ML |
47 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
48 | ||
eb6ed20f ML |
49 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
50 | struct sp_port_config *config); | |
e33dcf90 | 51 | |
eb6ed20f ML |
52 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
53 | const struct sp_port_config *config); | |
80186526 | 54 | |
970f279a | 55 | SP_API enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
56 | { |
57 | struct sp_port *port; | |
5a8810e2 | 58 | #ifndef NO_PORT_METADATA |
a93fb468 | 59 | enum sp_return ret; |
5a8810e2 | 60 | #endif |
5919c913 | 61 | int len; |
d54e9004 | 62 | |
c33efc48 ML |
63 | TRACE("%s, %p", portname, port_ptr); |
64 | ||
32b5ac05 | 65 | if (!port_ptr) |
c33efc48 | 66 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 67 | |
77f262c4 ML |
68 | *port_ptr = NULL; |
69 | ||
d4babed2 | 70 | if (!portname) |
c33efc48 | 71 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 72 | |
7890cef6 | 73 | DEBUG_FMT("Building structure for port %s", portname); |
ea667be7 | 74 | |
d54e9004 | 75 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 76 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 77 | |
5919c913 ML |
78 | len = strlen(portname) + 1; |
79 | ||
eac329d2 | 80 | if (!(port->name = malloc(len))) { |
d54e9004 | 81 | free(port); |
c33efc48 | 82 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
83 | } |
84 | ||
85 | memcpy(port->name, portname, len); | |
86 | ||
8f471c66 | 87 | #ifdef _WIN32 |
e31f2c6b | 88 | port->usb_path = NULL; |
8f471c66 ML |
89 | port->hdl = INVALID_HANDLE_VALUE; |
90 | #else | |
91 | port->fd = -1; | |
92 | #endif | |
93 | ||
e33dcf90 ML |
94 | port->description = NULL; |
95 | port->transport = SP_TRANSPORT_NATIVE; | |
96 | port->usb_bus = -1; | |
97 | port->usb_address = -1; | |
98 | port->usb_vid = -1; | |
99 | port->usb_pid = -1; | |
100 | port->usb_manufacturer = NULL; | |
101 | port->usb_product = NULL; | |
102 | port->usb_serial = NULL; | |
103 | port->bluetooth_address = NULL; | |
104 | ||
e4ce975a | 105 | #ifndef NO_PORT_METADATA |
e33dcf90 | 106 | if ((ret = get_port_details(port)) != SP_OK) { |
a93fb468 AJ |
107 | sp_free_port(port); |
108 | return ret; | |
109 | } | |
e4ce975a | 110 | #endif |
a93fb468 | 111 | |
77f262c4 ML |
112 | *port_ptr = port; |
113 | ||
c33efc48 | 114 | RETURN_OK(); |
d54e9004 ML |
115 | } |
116 | ||
970f279a | 117 | SP_API char *sp_get_port_name(const struct sp_port *port) |
1c5aae9d ML |
118 | { |
119 | TRACE("%p", port); | |
120 | ||
121 | if (!port) | |
122 | return NULL; | |
123 | ||
9caa2e86 | 124 | RETURN_STRING(port->name); |
1c5aae9d ML |
125 | } |
126 | ||
970f279a | 127 | SP_API char *sp_get_port_description(struct sp_port *port) |
a93fb468 AJ |
128 | { |
129 | TRACE("%p", port); | |
130 | ||
131 | if (!port || !port->description) | |
132 | return NULL; | |
133 | ||
9caa2e86 | 134 | RETURN_STRING(port->description); |
a93fb468 AJ |
135 | } |
136 | ||
970f279a | 137 | SP_API enum sp_transport sp_get_port_transport(struct sp_port *port) |
a93fb468 AJ |
138 | { |
139 | TRACE("%p", port); | |
140 | ||
141 | if (!port) | |
142 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
143 | ||
9caa2e86 | 144 | RETURN_INT(port->transport); |
a93fb468 AJ |
145 | } |
146 | ||
970f279a AJ |
147 | SP_API enum sp_return sp_get_port_usb_bus_address(const struct sp_port *port, |
148 | int *usb_bus,int *usb_address) | |
a93fb468 AJ |
149 | { |
150 | TRACE("%p", port); | |
151 | ||
152 | if (!port) | |
153 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
154 | if (port->transport != SP_TRANSPORT_USB) | |
155 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
156 | if (port->usb_bus < 0 || port->usb_address < 0) |
157 | RETURN_ERROR(SP_ERR_SUPP, "Bus and address values are not available"); | |
a93fb468 | 158 | |
dc422c04 UH |
159 | if (usb_bus) |
160 | *usb_bus = port->usb_bus; | |
161 | if (usb_address) | |
162 | *usb_address = port->usb_address; | |
a93fb468 AJ |
163 | |
164 | RETURN_OK(); | |
165 | } | |
166 | ||
970f279a AJ |
167 | SP_API enum sp_return sp_get_port_usb_vid_pid(const struct sp_port *port, |
168 | int *usb_vid, int *usb_pid) | |
a93fb468 AJ |
169 | { |
170 | TRACE("%p", port); | |
171 | ||
172 | if (!port) | |
173 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
174 | if (port->transport != SP_TRANSPORT_USB) | |
175 | RETURN_ERROR(SP_ERR_ARG, "Port does not use USB transport"); | |
65172bef AJ |
176 | if (port->usb_vid < 0 || port->usb_pid < 0) |
177 | RETURN_ERROR(SP_ERR_SUPP, "VID:PID values are not available"); | |
a93fb468 | 178 | |
dc422c04 UH |
179 | if (usb_vid) |
180 | *usb_vid = port->usb_vid; | |
181 | if (usb_pid) | |
182 | *usb_pid = port->usb_pid; | |
a93fb468 AJ |
183 | |
184 | RETURN_OK(); | |
185 | } | |
186 | ||
970f279a | 187 | SP_API char *sp_get_port_usb_manufacturer(const struct sp_port *port) |
a93fb468 AJ |
188 | { |
189 | TRACE("%p", port); | |
190 | ||
191 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_manufacturer) | |
192 | return NULL; | |
193 | ||
9caa2e86 | 194 | RETURN_STRING(port->usb_manufacturer); |
a93fb468 AJ |
195 | } |
196 | ||
970f279a | 197 | SP_API char *sp_get_port_usb_product(const struct sp_port *port) |
a93fb468 AJ |
198 | { |
199 | TRACE("%p", port); | |
200 | ||
201 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_product) | |
202 | return NULL; | |
203 | ||
9caa2e86 | 204 | RETURN_STRING(port->usb_product); |
a93fb468 AJ |
205 | } |
206 | ||
970f279a | 207 | SP_API char *sp_get_port_usb_serial(const struct sp_port *port) |
a93fb468 AJ |
208 | { |
209 | TRACE("%p", port); | |
210 | ||
211 | if (!port || port->transport != SP_TRANSPORT_USB || !port->usb_serial) | |
212 | return NULL; | |
213 | ||
9caa2e86 | 214 | RETURN_STRING(port->usb_serial); |
a93fb468 AJ |
215 | } |
216 | ||
970f279a | 217 | SP_API char *sp_get_port_bluetooth_address(const struct sp_port *port) |
a93fb468 AJ |
218 | { |
219 | TRACE("%p", port); | |
220 | ||
221 | if (!port || port->transport != SP_TRANSPORT_BLUETOOTH | |
222 | || !port->bluetooth_address) | |
223 | return NULL; | |
224 | ||
9caa2e86 | 225 | RETURN_STRING(port->bluetooth_address); |
a93fb468 AJ |
226 | } |
227 | ||
970f279a AJ |
228 | SP_API enum sp_return sp_get_port_handle(const struct sp_port *port, |
229 | void *result_ptr) | |
3c126654 | 230 | { |
00d8c56d | 231 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
232 | |
233 | if (!port) | |
234 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
235 | ||
236 | #ifdef _WIN32 | |
237 | HANDLE *handle_ptr = result_ptr; | |
238 | *handle_ptr = port->hdl; | |
239 | #else | |
240 | int *fd_ptr = result_ptr; | |
241 | *fd_ptr = port->fd; | |
242 | #endif | |
243 | ||
244 | RETURN_OK(); | |
245 | } | |
246 | ||
970f279a AJ |
247 | SP_API enum sp_return sp_copy_port(const struct sp_port *port, |
248 | struct sp_port **copy_ptr) | |
32b5ac05 | 249 | { |
c33efc48 ML |
250 | TRACE("%p, %p", port, copy_ptr); |
251 | ||
32b5ac05 | 252 | if (!copy_ptr) |
c33efc48 | 253 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
254 | |
255 | *copy_ptr = NULL; | |
256 | ||
c33efc48 ML |
257 | if (!port) |
258 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
259 | ||
260 | if (!port->name) | |
261 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 262 | |
ea667be7 ML |
263 | DEBUG("Copying port structure"); |
264 | ||
9caa2e86 | 265 | RETURN_INT(sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
266 | } |
267 | ||
970f279a | 268 | SP_API void sp_free_port(struct sp_port *port) |
e3b2f7a4 | 269 | { |
c33efc48 ML |
270 | TRACE("%p", port); |
271 | ||
00d8c56d | 272 | if (!port) { |
c33efc48 ML |
273 | DEBUG("Null port"); |
274 | RETURN(); | |
275 | } | |
e3b2f7a4 | 276 | |
ea667be7 ML |
277 | DEBUG("Freeing port structure"); |
278 | ||
e3b2f7a4 ML |
279 | if (port->name) |
280 | free(port->name); | |
a93fb468 AJ |
281 | if (port->description) |
282 | free(port->description); | |
283 | if (port->usb_manufacturer) | |
284 | free(port->usb_manufacturer); | |
285 | if (port->usb_product) | |
286 | free(port->usb_product); | |
287 | if (port->usb_serial) | |
288 | free(port->usb_serial); | |
289 | if (port->bluetooth_address) | |
290 | free(port->bluetooth_address); | |
291 | #ifdef _WIN32 | |
292 | if (port->usb_path) | |
293 | free(port->usb_path); | |
294 | #endif | |
e3b2f7a4 ML |
295 | |
296 | free(port); | |
c33efc48 ML |
297 | |
298 | RETURN(); | |
e3b2f7a4 ML |
299 | } |
300 | ||
970f279a AJ |
301 | SP_PRIV struct sp_port **list_append(struct sp_port **list, |
302 | const char *portname) | |
3b63f34d ML |
303 | { |
304 | void *tmp; | |
305 | unsigned int count; | |
f92f1f0c | 306 | |
3b63f34d | 307 | for (count = 0; list[count]; count++); |
d54e9004 | 308 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
309 | goto fail; |
310 | list = tmp; | |
77f262c4 | 311 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 312 | goto fail; |
db2794ce | 313 | list[count + 1] = NULL; |
3b63f34d | 314 | return list; |
f92f1f0c | 315 | |
3b63f34d ML |
316 | fail: |
317 | sp_free_port_list(list); | |
318 | return NULL; | |
319 | } | |
320 | ||
970f279a | 321 | SP_API enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 322 | { |
d54e9004 | 323 | struct sp_port **list; |
48a4076f | 324 | int ret; |
24c1a4bb | 325 | |
c33efc48 ML |
326 | TRACE("%p", list_ptr); |
327 | ||
dec10e31 ML |
328 | if (!list_ptr) |
329 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
330 | ||
ea667be7 ML |
331 | DEBUG("Enumerating ports"); |
332 | ||
d54e9004 | 333 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 334 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
335 | |
336 | list[0] = NULL; | |
3b63f34d | 337 | |
e4ce975a ML |
338 | #ifdef NO_ENUMERATION |
339 | ret = SP_ERR_SUPP; | |
340 | #else | |
48a4076f | 341 | ret = list_ports(&list); |
e4ce975a | 342 | #endif |
77f262c4 | 343 | |
6b93ede4 ML |
344 | switch (ret) { |
345 | case SP_OK: | |
77f262c4 | 346 | *list_ptr = list; |
c33efc48 | 347 | RETURN_OK(); |
6b93ede4 | 348 | case SP_ERR_SUPP: |
9af8cff3 | 349 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); |
6b93ede4 | 350 | default: |
77f262c4 ML |
351 | if (list) |
352 | sp_free_port_list(list); | |
77f262c4 | 353 | *list_ptr = NULL; |
c33efc48 | 354 | return ret; |
77f262c4 | 355 | } |
3b63f34d ML |
356 | } |
357 | ||
970f279a | 358 | SP_API void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
359 | { |
360 | unsigned int i; | |
f92f1f0c | 361 | |
c33efc48 ML |
362 | TRACE("%p", list); |
363 | ||
dec10e31 ML |
364 | if (!list) { |
365 | DEBUG("Null list"); | |
366 | RETURN(); | |
367 | } | |
368 | ||
ea667be7 ML |
369 | DEBUG("Freeing port list"); |
370 | ||
3b63f34d | 371 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 372 | sp_free_port(list[i]); |
3b63f34d | 373 | free(list); |
c33efc48 ML |
374 | |
375 | RETURN(); | |
3b63f34d ML |
376 | } |
377 | ||
c33efc48 | 378 | #define CHECK_PORT() do { \ |
dc422c04 | 379 | if (!port) \ |
c33efc48 | 380 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ |
dc422c04 | 381 | if (!port->name) \ |
dec10e31 ML |
382 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ |
383 | } while (0) | |
384 | #ifdef _WIN32 | |
385 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
386 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
387 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 388 | } while (0) |
74510d4b | 389 | #else |
dec10e31 | 390 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
391 | if (port->fd < 0) \ |
392 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 393 | } while (0) |
74510d4b | 394 | #endif |
dec10e31 ML |
395 | #define CHECK_OPEN_PORT() do { \ |
396 | CHECK_PORT(); \ | |
397 | CHECK_PORT_HANDLE(); \ | |
398 | } while (0) | |
74510d4b | 399 | |
970f279a | 400 | SP_API enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 401 | { |
bccc7c9f ML |
402 | struct port_data data; |
403 | struct sp_port_config config; | |
404 | enum sp_return ret; | |
405 | ||
00d8c56d | 406 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 407 | |
dec10e31 ML |
408 | CHECK_PORT(); |
409 | ||
276ef1b9 | 410 | if (flags > SP_MODE_READ_WRITE) |
dec10e31 | 411 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 412 | |
7890cef6 | 413 | DEBUG_FMT("Opening port %s", port->name); |
ea667be7 | 414 | |
74510d4b | 415 | #ifdef _WIN32 |
537942c9 | 416 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 417 | char *escaped_port_name; |
537942c9 | 418 | COMSTAT status; |
99945a1f ML |
419 | |
420 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 421 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 422 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
423 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
424 | ||
74510d4b | 425 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 426 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
427 | if (flags & SP_MODE_READ) |
428 | desired_access |= GENERIC_READ; | |
429 | if (flags & SP_MODE_WRITE) | |
74510d4b | 430 | desired_access |= GENERIC_WRITE; |
74510d4b | 431 | |
99945a1f | 432 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 433 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
434 | |
435 | free(escaped_port_name); | |
436 | ||
74510d4b | 437 | if (port->hdl == INVALID_HANDLE_VALUE) |
dc422c04 | 438 | RETURN_FAIL("Port CreateFile() failed"); |
e3dcf906 ML |
439 | |
440 | /* All timeouts initially disabled. */ | |
441 | port->timeouts.ReadIntervalTimeout = 0; | |
442 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
443 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
444 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
445 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 446 | |
e3dcf906 | 447 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
448 | sp_close(port); |
449 | RETURN_FAIL("SetCommTimeouts() failed"); | |
450 | } | |
e3dcf906 ML |
451 | |
452 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
453 | #define INIT_OVERLAPPED(ovl) do { \ |
454 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
455 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
456 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
457 | == INVALID_HANDLE_VALUE) { \ | |
458 | sp_close(port); \ | |
459 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
460 | } \ | |
461 | } while (0) | |
462 | ||
463 | INIT_OVERLAPPED(read_ovl); | |
464 | INIT_OVERLAPPED(write_ovl); | |
465 | INIT_OVERLAPPED(wait_ovl); | |
466 | ||
467 | /* Set event mask for RX and error events. */ | |
468 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 469 | sp_close(port); |
6f1186aa | 470 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 471 | } |
6f1186aa ML |
472 | |
473 | /* Start background operation for RX and error events. */ | |
474 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
475 | if (GetLastError() != ERROR_IO_PENDING) { | |
476 | sp_close(port); | |
477 | RETURN_FAIL("WaitCommEvent() failed"); | |
478 | } | |
e3dcf906 ML |
479 | } |
480 | ||
481 | port->writing = FALSE; | |
482 | ||
74510d4b | 483 | #else |
e3dcf906 | 484 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 485 | |
74510d4b | 486 | /* Map 'flags' to the OS-specific settings. */ |
276ef1b9 | 487 | if ((flags & SP_MODE_READ_WRITE) == SP_MODE_READ_WRITE) |
74510d4b | 488 | flags_local |= O_RDWR; |
a036341b | 489 | else if (flags & SP_MODE_READ) |
74510d4b | 490 | flags_local |= O_RDONLY; |
a036341b ML |
491 | else if (flags & SP_MODE_WRITE) |
492 | flags_local |= O_WRONLY; | |
74510d4b ML |
493 | |
494 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 495 | RETURN_FAIL("open() failed"); |
bccc7c9f | 496 | #endif |
9cb98459 | 497 | |
e33ab9aa ML |
498 | ret = get_config(port, &data, &config); |
499 | ||
eac329d2 | 500 | if (ret < 0) { |
e33ab9aa | 501 | sp_close(port); |
c33efc48 | 502 | RETURN_CODEVAL(ret); |
e33ab9aa | 503 | } |
9cb98459 | 504 | |
bccc7c9f ML |
505 | /* Set sane port settings. */ |
506 | #ifdef _WIN32 | |
507 | data.dcb.fBinary = TRUE; | |
508 | data.dcb.fDsrSensitivity = FALSE; | |
509 | data.dcb.fErrorChar = FALSE; | |
510 | data.dcb.fNull = FALSE; | |
511 | data.dcb.fAbortOnError = TRUE; | |
512 | #else | |
b251be4b | 513 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
514 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
515 | #ifdef IUCLC | |
516 | data.term.c_iflag &= ~IUCLC; | |
517 | #endif | |
518 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
519 | #ifdef OLCUC | |
520 | data.term.c_oflag &= ~OLCUC; | |
521 | #endif | |
522 | #ifdef NLDLY | |
523 | data.term.c_oflag &= ~NLDLY; | |
524 | #endif | |
525 | #ifdef CRDLY | |
526 | data.term.c_oflag &= ~CRDLY; | |
527 | #endif | |
528 | #ifdef TABDLY | |
529 | data.term.c_oflag &= ~TABDLY; | |
530 | #endif | |
531 | #ifdef BSDLY | |
532 | data.term.c_oflag &= ~BSDLY; | |
533 | #endif | |
534 | #ifdef VTDLY | |
535 | data.term.c_oflag &= ~VTDLY; | |
536 | #endif | |
537 | #ifdef FFDLY | |
538 | data.term.c_oflag &= ~FFDLY; | |
539 | #endif | |
b251be4b | 540 | #ifdef OFILL |
9cb98459 ML |
541 | data.term.c_oflag &= ~OFILL; |
542 | #endif | |
c3e05092 | 543 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 544 | data.term.c_cc[VMIN] = 0; |
b251be4b | 545 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 546 | |
b251be4b ML |
547 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
548 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 549 | #endif |
9cb98459 | 550 | |
537942c9 | 551 | #ifdef _WIN32 |
1a2a1544 UH |
552 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
553 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
554 | #endif |
555 | ||
e33ab9aa ML |
556 | ret = set_config(port, &data, &config); |
557 | ||
eac329d2 | 558 | if (ret < 0) { |
e33ab9aa | 559 | sp_close(port); |
c33efc48 | 560 | RETURN_CODEVAL(ret); |
e33ab9aa | 561 | } |
74510d4b | 562 | |
c33efc48 | 563 | RETURN_OK(); |
74510d4b ML |
564 | } |
565 | ||
970f279a | 566 | SP_API enum sp_return sp_close(struct sp_port *port) |
74510d4b | 567 | { |
c33efc48 ML |
568 | TRACE("%p", port); |
569 | ||
dec10e31 | 570 | CHECK_OPEN_PORT(); |
74510d4b | 571 | |
7890cef6 | 572 | DEBUG_FMT("Closing port %s", port->name); |
ea667be7 | 573 | |
74510d4b ML |
574 | #ifdef _WIN32 |
575 | /* Returns non-zero upon success, 0 upon failure. */ | |
576 | if (CloseHandle(port->hdl) == 0) | |
dc422c04 | 577 | RETURN_FAIL("Port CloseHandle() failed"); |
8f471c66 | 578 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
579 | |
580 | /* Close event handles for overlapped structures. */ | |
581 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
582 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
583 | CloseHandle(port->ovl.hEvent) == 0) \ | |
584 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
585 | } while (0) | |
586 | CLOSE_OVERLAPPED(read_ovl); | |
587 | CLOSE_OVERLAPPED(write_ovl); | |
588 | CLOSE_OVERLAPPED(wait_ovl); | |
589 | ||
74510d4b ML |
590 | #else |
591 | /* Returns 0 upon success, -1 upon failure. */ | |
592 | if (close(port->fd) == -1) | |
c33efc48 | 593 | RETURN_FAIL("close() failed"); |
8f471c66 | 594 | port->fd = -1; |
74510d4b ML |
595 | #endif |
596 | ||
c33efc48 | 597 | RETURN_OK(); |
74510d4b ML |
598 | } |
599 | ||
970f279a | 600 | SP_API enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 601 | { |
00d8c56d | 602 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 603 | |
dec10e31 ML |
604 | CHECK_OPEN_PORT(); |
605 | ||
606 | if (buffers > SP_BUF_BOTH) | |
607 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 608 | |
0ba3e49b | 609 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 | 610 | |
7890cef6 ML |
611 | DEBUG_FMT("Flushing %s buffers on port %s", |
612 | buffer_names[buffers], port->name); | |
ea667be7 | 613 | |
74510d4b | 614 | #ifdef _WIN32 |
fd8fd11a ML |
615 | DWORD flags = 0; |
616 | if (buffers & SP_BUF_INPUT) | |
617 | flags |= PURGE_RXCLEAR; | |
618 | if (buffers & SP_BUF_OUTPUT) | |
619 | flags |= PURGE_TXCLEAR; | |
620 | ||
74510d4b | 621 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 622 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 623 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 624 | #else |
fd8fd11a | 625 | int flags = 0; |
ad749855 | 626 | if (buffers == SP_BUF_BOTH) |
fd8fd11a | 627 | flags = TCIOFLUSH; |
ad749855 | 628 | else if (buffers == SP_BUF_INPUT) |
fd8fd11a | 629 | flags = TCIFLUSH; |
ad749855 | 630 | else if (buffers == SP_BUF_OUTPUT) |
fd8fd11a ML |
631 | flags = TCOFLUSH; |
632 | ||
74510d4b | 633 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 634 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 635 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 636 | #endif |
c33efc48 | 637 | RETURN_OK(); |
74510d4b ML |
638 | } |
639 | ||
970f279a | 640 | SP_API enum sp_return sp_drain(struct sp_port *port) |
69a3739c | 641 | { |
c33efc48 ML |
642 | TRACE("%p", port); |
643 | ||
dec10e31 | 644 | CHECK_OPEN_PORT(); |
69a3739c | 645 | |
7890cef6 | 646 | DEBUG_FMT("Draining port %s", port->name); |
ea667be7 | 647 | |
69a3739c ML |
648 | #ifdef _WIN32 |
649 | /* Returns non-zero upon success, 0 upon failure. */ | |
650 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 651 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 652 | RETURN_OK(); |
69a3739c | 653 | #else |
2c827b21 ML |
654 | int result; |
655 | while (1) { | |
33fd8804 ML |
656 | #ifdef __ANDROID__ |
657 | int arg = 1; | |
658 | result = ioctl(port->fd, TCSBRK, &arg); | |
659 | #else | |
2c827b21 | 660 | result = tcdrain(port->fd); |
33fd8804 | 661 | #endif |
2c827b21 ML |
662 | if (result < 0) { |
663 | if (errno == EINTR) { | |
664 | DEBUG("tcdrain() was interrupted"); | |
665 | continue; | |
666 | } else { | |
667 | RETURN_FAIL("tcdrain() failed"); | |
668 | } | |
669 | } else { | |
670 | RETURN_OK(); | |
671 | } | |
672 | } | |
69a3739c | 673 | #endif |
69a3739c ML |
674 | } |
675 | ||
970f279a AJ |
676 | SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, |
677 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
678 | { |
679 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
680 | ||
681 | CHECK_OPEN_PORT(); | |
682 | ||
683 | if (!buf) | |
684 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
685 | ||
686 | if (timeout) | |
7890cef6 ML |
687 | DEBUG_FMT("Writing %d bytes to port %s, timeout %d ms", |
688 | count, port->name, timeout); | |
e3dcf906 | 689 | else |
7890cef6 ML |
690 | DEBUG_FMT("Writing %d bytes to port %s, no timeout", |
691 | count, port->name); | |
e3dcf906 ML |
692 | |
693 | if (count == 0) | |
9caa2e86 | 694 | RETURN_INT(0); |
e3dcf906 ML |
695 | |
696 | #ifdef _WIN32 | |
697 | DWORD bytes_written = 0; | |
698 | BOOL result; | |
699 | ||
700 | /* Wait for previous non-blocking write to complete, if any. */ | |
701 | if (port->writing) { | |
702 | DEBUG("Waiting for previous write to complete"); | |
703 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
704 | port->writing = 0; | |
705 | if (!result) | |
706 | RETURN_FAIL("Previous write failed to complete"); | |
707 | DEBUG("Previous write completed"); | |
708 | } | |
709 | ||
710 | /* Set timeout. */ | |
711 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
712 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
713 | RETURN_FAIL("SetCommTimeouts() failed"); | |
714 | ||
715 | /* Start write. */ | |
716 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
717 | if (GetLastError() == ERROR_IO_PENDING) { | |
718 | DEBUG("Waiting for write to complete"); | |
719 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
7890cef6 | 720 | DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); |
9caa2e86 | 721 | RETURN_INT(bytes_written); |
e3dcf906 ML |
722 | } else { |
723 | RETURN_FAIL("WriteFile() failed"); | |
724 | } | |
725 | } else { | |
726 | DEBUG("Write completed immediately"); | |
9caa2e86 | 727 | RETURN_INT(count); |
e3dcf906 ML |
728 | } |
729 | #else | |
730 | size_t bytes_written = 0; | |
731 | unsigned char *ptr = (unsigned char *) buf; | |
732 | struct timeval start, delta, now, end = {0, 0}; | |
733 | fd_set fds; | |
734 | int result; | |
735 | ||
736 | if (timeout) { | |
737 | /* Get time at start of operation. */ | |
738 | gettimeofday(&start, NULL); | |
739 | /* Define duration of timeout. */ | |
740 | delta.tv_sec = timeout / 1000; | |
1b342042 | 741 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
742 | /* Calculate time at which we should give up. */ |
743 | timeradd(&start, &delta, &end); | |
744 | } | |
745 | ||
746 | /* Loop until we have written the requested number of bytes. */ | |
dc422c04 | 747 | while (bytes_written < count) { |
e3dcf906 ML |
748 | /* Wait until space is available. */ |
749 | FD_ZERO(&fds); | |
750 | FD_SET(port->fd, &fds); | |
751 | if (timeout) { | |
752 | gettimeofday(&now, NULL); | |
753 | if (timercmp(&now, &end, >)) { | |
dc422c04 | 754 | DEBUG("Write timed out"); |
9caa2e86 | 755 | RETURN_INT(bytes_written); |
e3dcf906 ML |
756 | } |
757 | timersub(&end, &now, &delta); | |
758 | } | |
759 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
760 | if (result < 0) { |
761 | if (errno == EINTR) { | |
762 | DEBUG("select() call was interrupted, repeating"); | |
763 | continue; | |
764 | } else { | |
765 | RETURN_FAIL("select() failed"); | |
766 | } | |
767 | } else if (result == 0) { | |
dc422c04 | 768 | DEBUG("Write timed out"); |
9caa2e86 | 769 | RETURN_INT(bytes_written); |
e3dcf906 ML |
770 | } |
771 | ||
772 | /* Do write. */ | |
773 | result = write(port->fd, ptr, count - bytes_written); | |
774 | ||
775 | if (result < 0) { | |
776 | if (errno == EAGAIN) | |
777 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
778 | continue; | |
779 | else | |
780 | /* This is an actual failure. */ | |
781 | RETURN_FAIL("write() failed"); | |
782 | } | |
783 | ||
784 | bytes_written += result; | |
785 | ptr += result; | |
786 | } | |
787 | ||
9caa2e86 | 788 | RETURN_INT(bytes_written); |
e3dcf906 ML |
789 | #endif |
790 | } | |
791 | ||
970f279a AJ |
792 | SP_API enum sp_return sp_nonblocking_write(struct sp_port *port, |
793 | const void *buf, size_t count) | |
74510d4b | 794 | { |
c33efc48 ML |
795 | TRACE("%p, %p, %d", port, buf, count); |
796 | ||
dec10e31 | 797 | CHECK_OPEN_PORT(); |
74510d4b ML |
798 | |
799 | if (!buf) | |
c33efc48 | 800 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 801 | |
7890cef6 | 802 | DEBUG_FMT("Writing up to %d bytes to port %s", count, port->name); |
ea667be7 | 803 | |
a3cb91f5 | 804 | if (count == 0) |
9caa2e86 | 805 | RETURN_INT(0); |
a3cb91f5 | 806 | |
74510d4b ML |
807 | #ifdef _WIN32 |
808 | DWORD written = 0; | |
0765af56 | 809 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 810 | |
e3dcf906 ML |
811 | /* Check whether previous write is complete. */ |
812 | if (port->writing) { | |
813 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
814 | DEBUG("Previous write completed"); | |
815 | port->writing = 0; | |
816 | } else { | |
817 | DEBUG("Previous write not complete"); | |
818 | /* Can't take a new write until the previous one finishes. */ | |
9caa2e86 | 819 | RETURN_INT(0); |
a3cb91f5 | 820 | } |
e3dcf906 | 821 | } |
a3cb91f5 | 822 | |
e3dcf906 ML |
823 | /* Set timeout. */ |
824 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
825 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
826 | RETURN_FAIL("SetCommTimeouts() failed"); | |
827 | ||
dc422c04 UH |
828 | /* |
829 | * Keep writing data until the OS has to actually start an async IO | |
830 | * for it. At that point we know the buffer is full. | |
831 | */ | |
832 | while (written < count) { | |
e3dcf906 ML |
833 | /* Copy first byte of user buffer. */ |
834 | port->pending_byte = *ptr++; | |
835 | ||
836 | /* Start asynchronous write. */ | |
837 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
838 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
839 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
840 | DEBUG("Asynchronous write completed immediately"); | |
841 | port->writing = 0; | |
842 | written++; | |
843 | continue; | |
844 | } else { | |
845 | DEBUG("Asynchronous write running"); | |
846 | port->writing = 1; | |
9caa2e86 | 847 | RETURN_INT(++written); |
64d99621 | 848 | } |
a3cb91f5 | 849 | } else { |
e3dcf906 ML |
850 | /* Actual failure of some kind. */ |
851 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 852 | } |
e3dcf906 | 853 | } else { |
9af8cff3 | 854 | DEBUG("Single byte written immediately"); |
e3dcf906 | 855 | written++; |
a3cb91f5 ML |
856 | } |
857 | } | |
858 | ||
9af8cff3 | 859 | DEBUG("All bytes written immediately"); |
e3dcf906 | 860 | |
9caa2e86 | 861 | RETURN_INT(written); |
74510d4b ML |
862 | #else |
863 | /* Returns the number of bytes written, or -1 upon failure. */ | |
864 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 865 | |
74510d4b | 866 | if (written < 0) |
c33efc48 | 867 | RETURN_FAIL("write() failed"); |
74510d4b | 868 | else |
9caa2e86 | 869 | RETURN_INT(written); |
74510d4b ML |
870 | #endif |
871 | } | |
872 | ||
970f279a AJ |
873 | SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf, |
874 | size_t count, unsigned int timeout) | |
e3dcf906 ML |
875 | { |
876 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
877 | ||
878 | CHECK_OPEN_PORT(); | |
879 | ||
880 | if (!buf) | |
881 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
882 | ||
883 | if (timeout) | |
7890cef6 ML |
884 | DEBUG_FMT("Reading %d bytes from port %s, timeout %d ms", |
885 | count, port->name, timeout); | |
e3dcf906 | 886 | else |
7890cef6 ML |
887 | DEBUG_FMT("Reading %d bytes from port %s, no timeout", |
888 | count, port->name); | |
e3dcf906 ML |
889 | |
890 | if (count == 0) | |
9caa2e86 | 891 | RETURN_INT(0); |
e3dcf906 ML |
892 | |
893 | #ifdef _WIN32 | |
894 | DWORD bytes_read = 0; | |
f446cfbf | 895 | DWORD wait_result = 0; |
e3dcf906 ML |
896 | |
897 | /* Set timeout. */ | |
898 | port->timeouts.ReadIntervalTimeout = 0; | |
899 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
900 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
901 | RETURN_FAIL("SetCommTimeouts() failed"); | |
902 | ||
903 | /* Start read. */ | |
904 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
905 | if (GetLastError() == ERROR_IO_PENDING) { | |
906 | DEBUG("Waiting for read to complete"); | |
907 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
7890cef6 | 908 | DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); |
e3dcf906 ML |
909 | } else { |
910 | RETURN_FAIL("ReadFile() failed"); | |
911 | } | |
912 | } else { | |
913 | DEBUG("Read completed immediately"); | |
6f1186aa ML |
914 | bytes_read = count; |
915 | } | |
916 | ||
f446cfbf ML |
917 | /* Restart wait operation if needed. */ |
918 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, &wait_result, FALSE)) { | |
919 | /* Previous wait completed, start a new one. */ | |
920 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
921 | if (GetLastError() != ERROR_IO_PENDING) | |
922 | RETURN_FAIL("WaitCommEvent() failed"); | |
923 | } | |
924 | } else if (GetLastError() != ERROR_IO_INCOMPLETE) { | |
925 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 926 | } |
6f1186aa | 927 | |
9caa2e86 | 928 | RETURN_INT(bytes_read); |
6f1186aa | 929 | |
e3dcf906 ML |
930 | #else |
931 | size_t bytes_read = 0; | |
932 | unsigned char *ptr = (unsigned char *) buf; | |
933 | struct timeval start, delta, now, end = {0, 0}; | |
934 | fd_set fds; | |
935 | int result; | |
936 | ||
937 | if (timeout) { | |
938 | /* Get time at start of operation. */ | |
939 | gettimeofday(&start, NULL); | |
940 | /* Define duration of timeout. */ | |
941 | delta.tv_sec = timeout / 1000; | |
1b342042 | 942 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
943 | /* Calculate time at which we should give up. */ |
944 | timeradd(&start, &delta, &end); | |
945 | } | |
946 | ||
947 | /* Loop until we have the requested number of bytes. */ | |
dc422c04 | 948 | while (bytes_read < count) { |
e3dcf906 ML |
949 | /* Wait until data is available. */ |
950 | FD_ZERO(&fds); | |
951 | FD_SET(port->fd, &fds); | |
952 | if (timeout) { | |
953 | gettimeofday(&now, NULL); | |
954 | if (timercmp(&now, &end, >)) | |
955 | /* Timeout has expired. */ | |
9caa2e86 | 956 | RETURN_INT(bytes_read); |
e3dcf906 ML |
957 | timersub(&end, &now, &delta); |
958 | } | |
959 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
960 | if (result < 0) { |
961 | if (errno == EINTR) { | |
962 | DEBUG("select() call was interrupted, repeating"); | |
963 | continue; | |
964 | } else { | |
965 | RETURN_FAIL("select() failed"); | |
966 | } | |
967 | } else if (result == 0) { | |
dc422c04 | 968 | DEBUG("Read timed out"); |
9caa2e86 | 969 | RETURN_INT(bytes_read); |
e3dcf906 ML |
970 | } |
971 | ||
972 | /* Do read. */ | |
973 | result = read(port->fd, ptr, count - bytes_read); | |
974 | ||
975 | if (result < 0) { | |
976 | if (errno == EAGAIN) | |
977 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
978 | continue; | |
979 | else | |
980 | /* This is an actual failure. */ | |
981 | RETURN_FAIL("read() failed"); | |
982 | } | |
983 | ||
984 | bytes_read += result; | |
985 | ptr += result; | |
986 | } | |
987 | ||
9caa2e86 | 988 | RETURN_INT(bytes_read); |
e3dcf906 ML |
989 | #endif |
990 | } | |
991 | ||
970f279a AJ |
992 | SP_API enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, |
993 | size_t count) | |
74510d4b | 994 | { |
c33efc48 ML |
995 | TRACE("%p, %p, %d", port, buf, count); |
996 | ||
dec10e31 | 997 | CHECK_OPEN_PORT(); |
74510d4b ML |
998 | |
999 | if (!buf) | |
c33efc48 | 1000 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1001 | |
7890cef6 | 1002 | DEBUG_FMT("Reading up to %d bytes from port %s", count, port->name); |
ea667be7 | 1003 | |
74510d4b | 1004 | #ifdef _WIN32 |
e3dcf906 | 1005 | DWORD bytes_read; |
f446cfbf | 1006 | DWORD wait_result; |
f92f1f0c | 1007 | |
e3dcf906 ML |
1008 | /* Set timeout. */ |
1009 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1010 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
1011 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1012 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1013 | ||
1014 | /* Do read. */ | |
1015 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1016 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1017 | |
1018 | /* Get number of bytes read. */ | |
1622ef60 ML |
1019 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1020 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 1021 | |
f446cfbf ML |
1022 | /* Restart wait operation if needed. */ |
1023 | if (GetOverlappedResult(port->hdl, &port->wait_ovl, &wait_result, FALSE)) { | |
1024 | /* Previous wait completed, start a new one. */ | |
6f1186aa ML |
1025 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { |
1026 | if (GetLastError() != ERROR_IO_PENDING) | |
1027 | RETURN_FAIL("WaitCommEvent() failed"); | |
1028 | } | |
f446cfbf ML |
1029 | } else if (GetLastError() != ERROR_IO_INCOMPLETE) { |
1030 | RETURN_FAIL("GetOverlappedResult() failed"); | |
6f1186aa ML |
1031 | } |
1032 | ||
9caa2e86 | 1033 | RETURN_INT(bytes_read); |
74510d4b ML |
1034 | #else |
1035 | ssize_t bytes_read; | |
f92f1f0c | 1036 | |
74510d4b | 1037 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1038 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1039 | if (errno == EAGAIN) |
1040 | /* No bytes available. */ | |
33d5ff47 ML |
1041 | bytes_read = 0; |
1042 | else | |
1043 | /* This is an actual failure. */ | |
1044 | RETURN_FAIL("read() failed"); | |
1045 | } | |
9caa2e86 | 1046 | RETURN_INT(bytes_read); |
74510d4b ML |
1047 | #endif |
1048 | } | |
1049 | ||
970f279a | 1050 | SP_API enum sp_return sp_input_waiting(struct sp_port *port) |
3353c22f ML |
1051 | { |
1052 | TRACE("%p", port); | |
1053 | ||
1054 | CHECK_OPEN_PORT(); | |
1055 | ||
7890cef6 | 1056 | DEBUG_FMT("Checking input bytes waiting on port %s", port->name); |
3353c22f ML |
1057 | |
1058 | #ifdef _WIN32 | |
1059 | DWORD errors; | |
1060 | COMSTAT comstat; | |
1061 | ||
1062 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1063 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1064 | RETURN_INT(comstat.cbInQue); |
3353c22f ML |
1065 | #else |
1066 | int bytes_waiting; | |
1067 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1068 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
9caa2e86 | 1069 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1070 | #endif |
1071 | } | |
1072 | ||
970f279a | 1073 | SP_API enum sp_return sp_output_waiting(struct sp_port *port) |
3353c22f ML |
1074 | { |
1075 | TRACE("%p", port); | |
1076 | ||
1077 | CHECK_OPEN_PORT(); | |
1078 | ||
7890cef6 | 1079 | DEBUG_FMT("Checking output bytes waiting on port %s", port->name); |
3353c22f ML |
1080 | |
1081 | #ifdef _WIN32 | |
1082 | DWORD errors; | |
1083 | COMSTAT comstat; | |
1084 | ||
1085 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1086 | RETURN_FAIL("ClearCommError() failed"); |
9caa2e86 | 1087 | RETURN_INT(comstat.cbOutQue); |
3353c22f ML |
1088 | #else |
1089 | int bytes_waiting; | |
1090 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1091 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
9caa2e86 | 1092 | RETURN_INT(bytes_waiting); |
3353c22f ML |
1093 | #endif |
1094 | } | |
1095 | ||
970f279a | 1096 | SP_API enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
6f1186aa ML |
1097 | { |
1098 | struct sp_event_set *result; | |
1099 | ||
1100 | TRACE("%p", result_ptr); | |
1101 | ||
1102 | if (!result_ptr) | |
1103 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1104 | ||
1105 | *result_ptr = NULL; | |
1106 | ||
1107 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1108 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1109 | ||
1110 | memset(result, 0, sizeof(struct sp_event_set)); | |
1111 | ||
1112 | *result_ptr = result; | |
1113 | ||
1114 | RETURN_OK(); | |
1115 | } | |
1116 | ||
1117 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1118 | event_handle handle, enum sp_event mask) | |
1119 | { | |
1120 | void *new_handles; | |
1121 | enum sp_event *new_masks; | |
1122 | ||
1123 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1124 | ||
1125 | if (!(new_handles = realloc(event_set->handles, | |
1126 | sizeof(event_handle) * (event_set->count + 1)))) | |
dc422c04 | 1127 | RETURN_ERROR(SP_ERR_MEM, "Handle array realloc() failed"); |
6f1186aa ML |
1128 | |
1129 | if (!(new_masks = realloc(event_set->masks, | |
1130 | sizeof(enum sp_event) * (event_set->count + 1)))) | |
dc422c04 | 1131 | RETURN_ERROR(SP_ERR_MEM, "Mask array realloc() failed"); |
6f1186aa ML |
1132 | |
1133 | event_set->handles = new_handles; | |
1134 | event_set->masks = new_masks; | |
1135 | ||
1136 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1137 | event_set->masks[event_set->count] = mask; | |
1138 | ||
1139 | event_set->count++; | |
1140 | ||
1141 | RETURN_OK(); | |
1142 | } | |
1143 | ||
970f279a | 1144 | SP_API enum sp_return sp_add_port_events(struct sp_event_set *event_set, |
6f1186aa ML |
1145 | const struct sp_port *port, enum sp_event mask) |
1146 | { | |
1147 | TRACE("%p, %p, %d", event_set, port, mask); | |
1148 | ||
1149 | if (!event_set) | |
1150 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1151 | ||
1152 | if (!port) | |
1153 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1154 | ||
1155 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1156 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1157 | ||
1158 | if (!mask) | |
1159 | RETURN_OK(); | |
1160 | ||
1161 | #ifdef _WIN32 | |
1162 | enum sp_event handle_mask; | |
1163 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1164 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1165 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1166 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1167 | #else | |
1168 | TRY(add_handle(event_set, port->fd, mask)); | |
1169 | #endif | |
1170 | ||
1171 | RETURN_OK(); | |
1172 | } | |
1173 | ||
970f279a | 1174 | SP_API void sp_free_event_set(struct sp_event_set *event_set) |
6f1186aa ML |
1175 | { |
1176 | TRACE("%p", event_set); | |
1177 | ||
1178 | if (!event_set) { | |
1179 | DEBUG("Null event set"); | |
1180 | RETURN(); | |
1181 | } | |
1182 | ||
1183 | DEBUG("Freeing event set"); | |
1184 | ||
1185 | if (event_set->handles) | |
1186 | free(event_set->handles); | |
1187 | if (event_set->masks) | |
1188 | free(event_set->masks); | |
1189 | ||
1190 | free(event_set); | |
1191 | ||
1192 | RETURN(); | |
1193 | } | |
1194 | ||
970f279a AJ |
1195 | SP_API enum sp_return sp_wait(struct sp_event_set *event_set, |
1196 | unsigned int timeout) | |
6f1186aa ML |
1197 | { |
1198 | TRACE("%p, %d", event_set, timeout); | |
1199 | ||
1200 | if (!event_set) | |
1201 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1202 | ||
1203 | #ifdef _WIN32 | |
1204 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1205 | timeout ? timeout : INFINITE) == WAIT_FAILED) | |
1206 | RETURN_FAIL("WaitForMultipleObjects() failed"); | |
1207 | ||
1208 | RETURN_OK(); | |
1209 | #else | |
1210 | struct timeval start, delta, now, end = {0, 0}; | |
1211 | int result, timeout_remaining; | |
1212 | struct pollfd *pollfds; | |
1213 | unsigned int i; | |
1214 | ||
1215 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1216 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1217 | ||
1218 | for (i = 0; i < event_set->count; i++) { | |
1219 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1220 | pollfds[i].events = 0; | |
1221 | pollfds[i].revents = 0; | |
1222 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1223 | pollfds[i].events |= POLLIN; | |
1224 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1225 | pollfds[i].events |= POLLOUT; | |
1226 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1227 | pollfds[i].events |= POLLERR; | |
1228 | } | |
1229 | ||
1230 | if (timeout) { | |
1231 | /* Get time at start of operation. */ | |
1232 | gettimeofday(&start, NULL); | |
1233 | /* Define duration of timeout. */ | |
1234 | delta.tv_sec = timeout / 1000; | |
1235 | delta.tv_usec = (timeout % 1000) * 1000; | |
1236 | /* Calculate time at which we should give up. */ | |
1237 | timeradd(&start, &delta, &end); | |
1238 | } | |
1239 | ||
1240 | /* Loop until an event occurs. */ | |
dc422c04 | 1241 | while (1) { |
6f1186aa ML |
1242 | if (timeout) { |
1243 | gettimeofday(&now, NULL); | |
1244 | if (timercmp(&now, &end, >)) { | |
dc422c04 | 1245 | DEBUG("Wait timed out"); |
6f1186aa ML |
1246 | break; |
1247 | } | |
1248 | timersub(&end, &now, &delta); | |
1249 | timeout_remaining = delta.tv_sec * 1000 + delta.tv_usec / 1000; | |
1250 | } | |
1251 | ||
1252 | result = poll(pollfds, event_set->count, timeout ? timeout_remaining : -1); | |
1253 | ||
1254 | if (result < 0) { | |
1255 | if (errno == EINTR) { | |
1256 | DEBUG("poll() call was interrupted, repeating"); | |
1257 | continue; | |
1258 | } else { | |
1259 | free(pollfds); | |
1260 | RETURN_FAIL("poll() failed"); | |
1261 | } | |
1262 | } else if (result == 0) { | |
1263 | DEBUG("poll() timed out"); | |
1264 | break; | |
1265 | } else { | |
1266 | DEBUG("poll() completed"); | |
1267 | break; | |
1268 | } | |
1269 | } | |
1270 | ||
1271 | free(pollfds); | |
1272 | RETURN_OK(); | |
1273 | #endif | |
1274 | } | |
1275 | ||
5cea279a | 1276 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1277 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1278 | { | |
1279 | void *data; | |
1280 | ||
c33efc48 ML |
1281 | TRACE("%d, %p", fd, baudrate); |
1282 | ||
ea667be7 ML |
1283 | DEBUG("Getting baud rate"); |
1284 | ||
7a6d2196 | 1285 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1286 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1287 | |
8d43110a ML |
1288 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1289 | free(data); | |
dc422c04 | 1290 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1291 | } |
7a6d2196 ML |
1292 | |
1293 | *baudrate = get_termios_speed(data); | |
1294 | ||
8d43110a ML |
1295 | free(data); |
1296 | ||
c33efc48 | 1297 | RETURN_OK(); |
7a6d2196 ML |
1298 | } |
1299 | ||
1300 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1301 | { | |
1302 | void *data; | |
1303 | ||
c33efc48 ML |
1304 | TRACE("%d, %d", fd, baudrate); |
1305 | ||
ea667be7 ML |
1306 | DEBUG("Getting baud rate"); |
1307 | ||
7a6d2196 | 1308 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1309 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1310 | |
8d43110a ML |
1311 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1312 | free(data); | |
dc422c04 | 1313 | RETURN_FAIL("Getting termios failed"); |
8d43110a | 1314 | } |
7a6d2196 | 1315 | |
ea667be7 ML |
1316 | DEBUG("Setting baud rate"); |
1317 | ||
7a6d2196 ML |
1318 | set_termios_speed(data, baudrate); |
1319 | ||
8d43110a ML |
1320 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1321 | free(data); | |
dc422c04 | 1322 | RETURN_FAIL("Setting termios failed"); |
8d43110a ML |
1323 | } |
1324 | ||
1325 | free(data); | |
7a6d2196 | 1326 | |
c33efc48 | 1327 | RETURN_OK(); |
7a6d2196 | 1328 | } |
5cea279a | 1329 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1330 | |
1331 | #ifdef USE_TERMIOX | |
bd791fe1 | 1332 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1333 | { |
bd791fe1 | 1334 | void *termx; |
40978c2b | 1335 | |
bd791fe1 | 1336 | TRACE("%d, %p", fd, data); |
c33efc48 | 1337 | |
ea667be7 ML |
1338 | DEBUG("Getting advanced flow control"); |
1339 | ||
bd791fe1 | 1340 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1341 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1342 | |
bd791fe1 ML |
1343 | if (ioctl(fd, TCGETX, termx) < 0) { |
1344 | free(termx); | |
dc422c04 | 1345 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1346 | } |
40978c2b | 1347 | |
bd791fe1 ML |
1348 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1349 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1350 | |
bd791fe1 | 1351 | free(termx); |
8d43110a | 1352 | |
c33efc48 | 1353 | RETURN_OK(); |
40978c2b ML |
1354 | } |
1355 | ||
bd791fe1 | 1356 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1357 | { |
bd791fe1 | 1358 | void *termx; |
40978c2b | 1359 | |
bd791fe1 | 1360 | TRACE("%d, %p", fd, data); |
c33efc48 | 1361 | |
ea667be7 ML |
1362 | DEBUG("Getting advanced flow control"); |
1363 | ||
bd791fe1 | 1364 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1365 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1366 | |
bd791fe1 ML |
1367 | if (ioctl(fd, TCGETX, termx) < 0) { |
1368 | free(termx); | |
dc422c04 | 1369 | RETURN_FAIL("Getting termiox failed"); |
8d43110a | 1370 | } |
40978c2b | 1371 | |
ea667be7 ML |
1372 | DEBUG("Setting advanced flow control"); |
1373 | ||
bd791fe1 ML |
1374 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1375 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1376 | |
bd791fe1 ML |
1377 | if (ioctl(fd, TCSETX, termx) < 0) { |
1378 | free(termx); | |
dc422c04 | 1379 | RETURN_FAIL("Setting termiox failed"); |
8d43110a ML |
1380 | } |
1381 | ||
bd791fe1 | 1382 | free(termx); |
40978c2b | 1383 | |
c33efc48 | 1384 | RETURN_OK(); |
40978c2b ML |
1385 | } |
1386 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1387 | |
eb6ed20f ML |
1388 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1389 | struct sp_port_config *config) | |
8094e4a0 | 1390 | { |
da2748bf | 1391 | unsigned int i; |
cbf628c7 | 1392 | |
c33efc48 ML |
1393 | TRACE("%p, %p, %p", port, data, config); |
1394 | ||
7890cef6 | 1395 | DEBUG_FMT("Getting configuration for port %s", port->name); |
ea667be7 | 1396 | |
8094e4a0 | 1397 | #ifdef _WIN32 |
e33ab9aa | 1398 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1399 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1400 | |
067417af | 1401 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1402 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1403 | config->baudrate = std_baudrates[i].value; |
1404 | break; | |
1405 | } | |
1406 | } | |
1407 | ||
1408 | if (i == NUM_STD_BAUDRATES) | |
1409 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1410 | config->baudrate = data->dcb.BaudRate; |
067417af | 1411 | |
e33ab9aa | 1412 | config->bits = data->dcb.ByteSize; |
067417af | 1413 | |
e33ab9aa ML |
1414 | if (data->dcb.fParity) |
1415 | switch (data->dcb.Parity) { | |
067417af ML |
1416 | case NOPARITY: |
1417 | config->parity = SP_PARITY_NONE; | |
1418 | break; | |
e432ce60 ML |
1419 | case ODDPARITY: |
1420 | config->parity = SP_PARITY_ODD; | |
1421 | break; | |
067417af ML |
1422 | case EVENPARITY: |
1423 | config->parity = SP_PARITY_EVEN; | |
1424 | break; | |
e432ce60 ML |
1425 | case MARKPARITY: |
1426 | config->parity = SP_PARITY_MARK; | |
1427 | break; | |
1428 | case SPACEPARITY: | |
1429 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1430 | break; |
1431 | default: | |
1432 | config->parity = -1; | |
1433 | } | |
1434 | else | |
1435 | config->parity = SP_PARITY_NONE; | |
1436 | ||
e33ab9aa | 1437 | switch (data->dcb.StopBits) { |
067417af ML |
1438 | case ONESTOPBIT: |
1439 | config->stopbits = 1; | |
1440 | break; | |
1441 | case TWOSTOPBITS: | |
1442 | config->stopbits = 2; | |
1443 | break; | |
1444 | default: | |
1445 | config->stopbits = -1; | |
1446 | } | |
1447 | ||
e33ab9aa | 1448 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1449 | case RTS_CONTROL_DISABLE: |
1450 | config->rts = SP_RTS_OFF; | |
1451 | break; | |
1452 | case RTS_CONTROL_ENABLE: | |
1453 | config->rts = SP_RTS_ON; | |
1454 | break; | |
1455 | case RTS_CONTROL_HANDSHAKE: | |
1456 | config->rts = SP_RTS_FLOW_CONTROL; | |
1457 | break; | |
1458 | default: | |
1459 | config->rts = -1; | |
067417af ML |
1460 | } |
1461 | ||
e33ab9aa | 1462 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1463 | |
e33ab9aa | 1464 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1465 | case DTR_CONTROL_DISABLE: |
1466 | config->dtr = SP_DTR_OFF; | |
1467 | break; | |
1468 | case DTR_CONTROL_ENABLE: | |
1469 | config->dtr = SP_DTR_ON; | |
1470 | break; | |
1471 | case DTR_CONTROL_HANDSHAKE: | |
1472 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1473 | break; | |
1474 | default: | |
1475 | config->dtr = -1; | |
067417af ML |
1476 | } |
1477 | ||
e33ab9aa ML |
1478 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1479 | ||
c6754b45 ML |
1480 | if (data->dcb.fInX) { |
1481 | if (data->dcb.fOutX) | |
1482 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1483 | else | |
1484 | config->xon_xoff = SP_XONXOFF_IN; | |
1485 | } else { | |
1486 | if (data->dcb.fOutX) | |
1487 | config->xon_xoff = SP_XONXOFF_OUT; | |
1488 | else | |
1489 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1490 | } | |
1491 | ||
e33ab9aa ML |
1492 | #else // !_WIN32 |
1493 | ||
1494 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1495 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1496 | |
1497 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1498 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1499 | |
1500 | #ifdef USE_TERMIOX | |
bd791fe1 | 1501 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1502 | |
1503 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1504 | data->termiox_supported = 0; | |
1505 | else if (ret < 0) | |
c33efc48 | 1506 | RETURN_CODEVAL(ret); |
68ec29db ML |
1507 | else |
1508 | data->termiox_supported = 1; | |
1509 | #else | |
1510 | data->termiox_supported = 0; | |
40978c2b ML |
1511 | #endif |
1512 | ||
067417af | 1513 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1514 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1515 | config->baudrate = std_baudrates[i].value; |
1516 | break; | |
1517 | } | |
1518 | } | |
1519 | ||
31b3a8f5 MH |
1520 | if (i == NUM_STD_BAUDRATES) { |
1521 | #ifdef __APPLE__ | |
1522 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1523 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1524 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1525 | #else |
067417af | 1526 | config->baudrate = -1; |
31b3a8f5 MH |
1527 | #endif |
1528 | } | |
067417af | 1529 | |
e33ab9aa | 1530 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1531 | case CS8: |
1532 | config->bits = 8; | |
1533 | break; | |
1534 | case CS7: | |
1535 | config->bits = 7; | |
1536 | break; | |
1537 | case CS6: | |
1538 | config->bits = 6; | |
1539 | break; | |
1540 | case CS5: | |
1541 | config->bits = 5; | |
1542 | break; | |
1543 | default: | |
1544 | config->bits = -1; | |
1545 | } | |
1546 | ||
e33ab9aa | 1547 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1548 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1549 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1550 | config->parity = -1; |
c3e05092 | 1551 | #ifdef CMSPAR |
e432ce60 ML |
1552 | else if (data->term.c_cflag & CMSPAR) |
1553 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1554 | #endif |
067417af | 1555 | else |
e33ab9aa | 1556 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1557 | |
e33ab9aa | 1558 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1559 | |
e33ab9aa | 1560 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1561 | config->rts = SP_RTS_FLOW_CONTROL; |
1562 | config->cts = SP_CTS_FLOW_CONTROL; | |
1563 | } else { | |
bd791fe1 | 1564 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1565 | config->rts = SP_RTS_FLOW_CONTROL; |
1566 | else | |
1567 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1568 | ||
bd791fe1 | 1569 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1570 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1571 | } |
1572 | ||
bd791fe1 | 1573 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1574 | config->dtr = SP_DTR_FLOW_CONTROL; |
1575 | else | |
1576 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1577 | ||
bd791fe1 | 1578 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1579 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1580 | |
e29b93a5 ML |
1581 | if (data->term.c_iflag & IXOFF) { |
1582 | if (data->term.c_iflag & IXON) | |
1583 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1584 | else | |
1585 | config->xon_xoff = SP_XONXOFF_IN; | |
1586 | } else { | |
1587 | if (data->term.c_iflag & IXON) | |
1588 | config->xon_xoff = SP_XONXOFF_OUT; | |
1589 | else | |
1590 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1591 | } | |
067417af ML |
1592 | #endif |
1593 | ||
c33efc48 | 1594 | RETURN_OK(); |
067417af ML |
1595 | } |
1596 | ||
7a6d2196 | 1597 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1598 | const struct sp_port_config *config) |
18fc2dd1 | 1599 | { |
e33ab9aa | 1600 | unsigned int i; |
31b3a8f5 MH |
1601 | #ifdef __APPLE__ |
1602 | BAUD_TYPE baud_nonstd; | |
1603 | ||
1604 | baud_nonstd = B0; | |
1605 | #endif | |
5cea279a | 1606 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1607 | int baud_nonstd = 0; |
1608 | #endif | |
18fc2dd1 | 1609 | |
c33efc48 ML |
1610 | TRACE("%p, %p, %p", port, data, config); |
1611 | ||
7890cef6 | 1612 | DEBUG_FMT("Setting configuration for port %s", port->name); |
ea667be7 | 1613 | |
e33ab9aa | 1614 | #ifdef _WIN32 |
eac329d2 | 1615 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1616 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1617 | if (config->baudrate == std_baudrates[i].value) { | |
1618 | data->dcb.BaudRate = std_baudrates[i].index; | |
1619 | break; | |
1620 | } | |
1621 | } | |
18fc2dd1 | 1622 | |
e33ab9aa ML |
1623 | if (i == NUM_STD_BAUDRATES) |
1624 | data->dcb.BaudRate = config->baudrate; | |
1625 | } | |
18fc2dd1 | 1626 | |
e33ab9aa ML |
1627 | if (config->bits >= 0) |
1628 | data->dcb.ByteSize = config->bits; | |
1629 | ||
1630 | if (config->parity >= 0) { | |
1631 | switch (config->parity) { | |
e33ab9aa ML |
1632 | case SP_PARITY_NONE: |
1633 | data->dcb.Parity = NOPARITY; | |
1634 | break; | |
e432ce60 ML |
1635 | case SP_PARITY_ODD: |
1636 | data->dcb.Parity = ODDPARITY; | |
1637 | break; | |
e33ab9aa ML |
1638 | case SP_PARITY_EVEN: |
1639 | data->dcb.Parity = EVENPARITY; | |
1640 | break; | |
e432ce60 ML |
1641 | case SP_PARITY_MARK: |
1642 | data->dcb.Parity = MARKPARITY; | |
1643 | break; | |
1644 | case SP_PARITY_SPACE: | |
1645 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1646 | break; |
1647 | default: | |
c33efc48 | 1648 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1649 | } |
18fc2dd1 ML |
1650 | } |
1651 | ||
e33ab9aa ML |
1652 | if (config->stopbits >= 0) { |
1653 | switch (config->stopbits) { | |
1654 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1655 | case 1: | |
1656 | data->dcb.StopBits = ONESTOPBIT; | |
1657 | break; | |
1658 | case 2: | |
1659 | data->dcb.StopBits = TWOSTOPBITS; | |
1660 | break; | |
1661 | default: | |
c33efc48 | 1662 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1663 | } |
1664 | } | |
1665 | ||
1666 | if (config->rts >= 0) { | |
1667 | switch (config->rts) { | |
1668 | case SP_RTS_OFF: | |
1669 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1670 | break; | |
1671 | case SP_RTS_ON: | |
1672 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1673 | break; | |
1674 | case SP_RTS_FLOW_CONTROL: | |
1675 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1676 | break; | |
1677 | default: | |
c33efc48 | 1678 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1679 | } |
1680 | } | |
1681 | ||
1682 | if (config->cts >= 0) { | |
1683 | switch (config->cts) { | |
1684 | case SP_CTS_IGNORE: | |
1685 | data->dcb.fOutxCtsFlow = FALSE; | |
1686 | break; | |
1687 | case SP_CTS_FLOW_CONTROL: | |
1688 | data->dcb.fOutxCtsFlow = TRUE; | |
1689 | break; | |
1690 | default: | |
c33efc48 | 1691 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1692 | } |
1693 | } | |
1694 | ||
1695 | if (config->dtr >= 0) { | |
1696 | switch (config->dtr) { | |
1697 | case SP_DTR_OFF: | |
1698 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1699 | break; | |
1700 | case SP_DTR_ON: | |
1701 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1702 | break; | |
1703 | case SP_DTR_FLOW_CONTROL: | |
1704 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1705 | break; | |
1706 | default: | |
c33efc48 | 1707 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1708 | } |
1709 | } | |
1710 | ||
1711 | if (config->dsr >= 0) { | |
1712 | switch (config->dsr) { | |
1713 | case SP_DSR_IGNORE: | |
1714 | data->dcb.fOutxDsrFlow = FALSE; | |
1715 | break; | |
1716 | case SP_DSR_FLOW_CONTROL: | |
1717 | data->dcb.fOutxDsrFlow = TRUE; | |
1718 | break; | |
1719 | default: | |
c33efc48 | 1720 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1721 | } |
18fc2dd1 ML |
1722 | } |
1723 | ||
e33ab9aa ML |
1724 | if (config->xon_xoff >= 0) { |
1725 | switch (config->xon_xoff) { | |
1726 | case SP_XONXOFF_DISABLED: | |
1727 | data->dcb.fInX = FALSE; | |
1728 | data->dcb.fOutX = FALSE; | |
1729 | break; | |
1730 | case SP_XONXOFF_IN: | |
1731 | data->dcb.fInX = TRUE; | |
1732 | data->dcb.fOutX = FALSE; | |
1733 | break; | |
1734 | case SP_XONXOFF_OUT: | |
1735 | data->dcb.fInX = FALSE; | |
1736 | data->dcb.fOutX = TRUE; | |
1737 | break; | |
1738 | case SP_XONXOFF_INOUT: | |
1739 | data->dcb.fInX = TRUE; | |
1740 | data->dcb.fOutX = TRUE; | |
1741 | break; | |
1742 | default: | |
c33efc48 | 1743 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1744 | } |
1745 | } | |
1746 | ||
1747 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1748 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1749 | |
31b3a8f5 | 1750 | #else /* !_WIN32 */ |
e33ab9aa | 1751 | |
7a6d2196 ML |
1752 | int controlbits; |
1753 | ||
eac329d2 | 1754 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1755 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1756 | if (config->baudrate == std_baudrates[i].value) { | |
1757 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1758 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1759 | |
1760 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1761 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1762 | break; |
1763 | } | |
1764 | } | |
1765 | ||
31b3a8f5 MH |
1766 | /* Non-standard baud rate */ |
1767 | if (i == NUM_STD_BAUDRATES) { | |
1768 | #ifdef __APPLE__ | |
24abdb68 | 1769 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1770 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1771 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1772 | baud_nonstd = config->baudrate; |
5cea279a | 1773 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1774 | baud_nonstd = 1; |
31b3a8f5 | 1775 | #else |
c33efc48 | 1776 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1777 | #endif |
1778 | } | |
e33ab9aa ML |
1779 | } |
1780 | ||
1781 | if (config->bits >= 0) { | |
1782 | data->term.c_cflag &= ~CSIZE; | |
1783 | switch (config->bits) { | |
1784 | case 8: | |
1785 | data->term.c_cflag |= CS8; | |
1786 | break; | |
1787 | case 7: | |
1788 | data->term.c_cflag |= CS7; | |
1789 | break; | |
1790 | case 6: | |
1791 | data->term.c_cflag |= CS6; | |
1792 | break; | |
23922313 UH |
1793 | case 5: |
1794 | data->term.c_cflag |= CS5; | |
1795 | break; | |
e33ab9aa | 1796 | default: |
c33efc48 | 1797 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1798 | } |
1799 | } | |
1800 | ||
1801 | if (config->parity >= 0) { | |
1802 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1803 | data->term.c_cflag &= ~(PARENB | PARODD); |
1804 | #ifdef CMSPAR | |
1805 | data->term.c_cflag &= ~CMSPAR; | |
1806 | #endif | |
e33ab9aa ML |
1807 | switch (config->parity) { |
1808 | case SP_PARITY_NONE: | |
1809 | data->term.c_iflag |= IGNPAR; | |
1810 | break; | |
1811 | case SP_PARITY_EVEN: | |
1812 | data->term.c_cflag |= PARENB; | |
1813 | break; | |
1814 | case SP_PARITY_ODD: | |
1815 | data->term.c_cflag |= PARENB | PARODD; | |
1816 | break; | |
afb518f0 | 1817 | #ifdef CMSPAR |
e432ce60 | 1818 | case SP_PARITY_MARK: |
c3e05092 | 1819 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 1820 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
1821 | break; |
1822 | case SP_PARITY_SPACE: | |
c3e05092 | 1823 | data->term.c_cflag |= PARENB; |
c3e05092 | 1824 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 1825 | break; |
afb518f0 ML |
1826 | #else |
1827 | case SP_PARITY_MARK: | |
1828 | case SP_PARITY_SPACE: | |
1829 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
1830 | #endif | |
e33ab9aa | 1831 | default: |
c33efc48 | 1832 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1833 | } |
1834 | } | |
1835 | ||
1836 | if (config->stopbits >= 0) { | |
1837 | data->term.c_cflag &= ~CSTOPB; | |
1838 | switch (config->stopbits) { | |
1839 | case 1: | |
1840 | data->term.c_cflag &= ~CSTOPB; | |
1841 | break; | |
1842 | case 2: | |
1843 | data->term.c_cflag |= CSTOPB; | |
1844 | break; | |
1845 | default: | |
c33efc48 | 1846 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1847 | } |
1848 | } | |
1849 | ||
eac329d2 | 1850 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 1851 | if (data->termiox_supported) { |
bd791fe1 | 1852 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
1853 | switch (config->rts) { |
1854 | case SP_RTS_OFF: | |
1855 | case SP_RTS_ON: | |
1856 | controlbits = TIOCM_RTS; | |
1857 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1858 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1859 | break; |
1860 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 1861 | data->rts_flow = 1; |
68ec29db ML |
1862 | break; |
1863 | default: | |
1864 | break; | |
e33ab9aa | 1865 | } |
68ec29db | 1866 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 1867 | data->cts_flow = 1; |
e33ab9aa | 1868 | |
bd791fe1 | 1869 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 1870 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1871 | else |
1872 | data->term.c_iflag &= ~CRTSCTS; | |
1873 | } else { | |
1874 | /* Asymmetric use of RTS/CTS not supported. */ | |
1875 | if (data->term.c_iflag & CRTSCTS) { | |
1876 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1877 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1878 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1879 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1880 | } |
1881 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1882 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1883 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1884 | } |
e33ab9aa | 1885 | } else { |
68ec29db ML |
1886 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1887 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1888 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1889 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1890 | } |
1891 | ||
1892 | if (config->rts >= 0) { | |
1893 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1894 | data->term.c_iflag |= CRTSCTS; | |
1895 | } else { | |
1896 | controlbits = TIOCM_RTS; | |
1897 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1898 | &controlbits) < 0) | |
c33efc48 | 1899 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1900 | } |
e33ab9aa ML |
1901 | } |
1902 | } | |
1903 | } | |
1904 | ||
eac329d2 | 1905 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 1906 | if (data->termiox_supported) { |
bd791fe1 | 1907 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
1908 | switch (config->dtr) { |
1909 | case SP_DTR_OFF: | |
1910 | case SP_DTR_ON: | |
1911 | controlbits = TIOCM_DTR; | |
1912 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1913 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1914 | break; |
1915 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 1916 | data->dtr_flow = 1; |
68ec29db ML |
1917 | break; |
1918 | default: | |
1919 | break; | |
1920 | } | |
1921 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 1922 | data->dsr_flow = 1; |
68ec29db ML |
1923 | } else { |
1924 | /* DTR/DSR flow control not supported. */ | |
1925 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1926 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1927 | |
68ec29db ML |
1928 | if (config->dtr >= 0) { |
1929 | controlbits = TIOCM_DTR; | |
1930 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1931 | &controlbits) < 0) | |
c33efc48 | 1932 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1933 | } |
e33ab9aa ML |
1934 | } |
1935 | } | |
1936 | ||
1937 | if (config->xon_xoff >= 0) { | |
1938 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1939 | switch (config->xon_xoff) { | |
1940 | case SP_XONXOFF_DISABLED: | |
1941 | break; | |
1942 | case SP_XONXOFF_IN: | |
1943 | data->term.c_iflag |= IXOFF; | |
1944 | break; | |
1945 | case SP_XONXOFF_OUT: | |
1946 | data->term.c_iflag |= IXON | IXANY; | |
1947 | break; | |
1948 | case SP_XONXOFF_INOUT: | |
1949 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1950 | break; | |
1951 | default: | |
c33efc48 | 1952 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1953 | } |
1954 | } | |
1955 | ||
3f5c06d0 | 1956 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 1957 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1958 | |
1959 | #ifdef __APPLE__ | |
1960 | if (baud_nonstd != B0) { | |
1961 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1962 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
dc422c04 UH |
1963 | /* |
1964 | * Set baud rates in data->term to correct, but incompatible | |
1965 | * with tcsetattr() value, same as delivered by tcgetattr(). | |
1966 | */ | |
31b3a8f5 | 1967 | if (cfsetspeed(&data->term, baud_nonstd) < 0) |
c33efc48 | 1968 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1969 | } |
7a6d2196 | 1970 | #elif defined(__linux__) |
5cea279a | 1971 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1972 | if (baud_nonstd) |
1973 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 1974 | #endif |
40978c2b | 1975 | #ifdef USE_TERMIOX |
68ec29db | 1976 | if (data->termiox_supported) |
bd791fe1 | 1977 | TRY(set_flow(port->fd, data)); |
40978c2b | 1978 | #endif |
7a6d2196 | 1979 | #endif |
31b3a8f5 MH |
1980 | |
1981 | #endif /* !_WIN32 */ | |
e33ab9aa | 1982 | |
c33efc48 | 1983 | RETURN_OK(); |
e33ab9aa ML |
1984 | } |
1985 | ||
970f279a | 1986 | SP_API enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
9b1502ef | 1987 | { |
59131d60 | 1988 | struct sp_port_config *config; |
9b1502ef | 1989 | |
00d8c56d UH |
1990 | TRACE("%p", config_ptr); |
1991 | ||
9b1502ef ML |
1992 | if (!config_ptr) |
1993 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
1994 | ||
59131d60 ML |
1995 | *config_ptr = NULL; |
1996 | ||
1997 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
dc422c04 | 1998 | RETURN_ERROR(SP_ERR_MEM, "Config malloc failed"); |
9b1502ef | 1999 | |
59131d60 ML |
2000 | config->baudrate = -1; |
2001 | config->bits = -1; | |
2002 | config->parity = -1; | |
2003 | config->stopbits = -1; | |
2004 | config->rts = -1; | |
2005 | config->cts = -1; | |
2006 | config->dtr = -1; | |
2007 | config->dsr = -1; | |
2008 | ||
2009 | *config_ptr = config; | |
2010 | ||
9b1502ef ML |
2011 | RETURN_OK(); |
2012 | } | |
2013 | ||
970f279a | 2014 | SP_API void sp_free_config(struct sp_port_config *config) |
9b1502ef ML |
2015 | { |
2016 | TRACE("%p", config); | |
2017 | ||
2018 | if (!config) | |
2019 | DEBUG("Null config"); | |
2020 | else | |
2021 | free(config); | |
2022 | ||
2023 | RETURN(); | |
2024 | } | |
2025 | ||
970f279a AJ |
2026 | SP_API enum sp_return sp_get_config(struct sp_port *port, |
2027 | struct sp_port_config *config) | |
70cd37de ML |
2028 | { |
2029 | struct port_data data; | |
2030 | ||
2031 | TRACE("%p, %p", port, config); | |
2032 | ||
2033 | CHECK_OPEN_PORT(); | |
2034 | ||
2035 | if (!config) | |
9b1502ef | 2036 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2037 | |
2038 | TRY(get_config(port, &data, config)); | |
2039 | ||
2040 | RETURN_OK(); | |
2041 | } | |
2042 | ||
970f279a AJ |
2043 | SP_API enum sp_return sp_set_config(struct sp_port *port, |
2044 | const struct sp_port_config *config) | |
e33ab9aa | 2045 | { |
8f189c4c | 2046 | struct port_data data; |
e33ab9aa ML |
2047 | struct sp_port_config prev_config; |
2048 | ||
c33efc48 ML |
2049 | TRACE("%p, %p", port, config); |
2050 | ||
dec10e31 | 2051 | CHECK_OPEN_PORT(); |
823690ae ML |
2052 | |
2053 | if (!config) | |
c33efc48 | 2054 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2055 | |
e33ab9aa ML |
2056 | TRY(get_config(port, &data, &prev_config)); |
2057 | TRY(set_config(port, &data, config)); | |
74510d4b | 2058 | |
c33efc48 | 2059 | RETURN_OK(); |
74510d4b ML |
2060 | } |
2061 | ||
9b1502ef | 2062 | #define CREATE_ACCESSORS(x, type) \ |
970f279a | 2063 | SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 2064 | struct port_data data; \ |
e33ab9aa | 2065 | struct sp_port_config config; \ |
c33efc48 | 2066 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2067 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2068 | TRY(get_config(port, &data, &config)); \ |
2069 | config.x = x; \ | |
2070 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2071 | RETURN_OK(); \ |
9b1502ef | 2072 | } \ |
970f279a AJ |
2073 | SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \ |
2074 | type *x) { \ | |
00d8c56d | 2075 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2076 | if (!config) \ |
2077 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2078 | *x = config->x; \ | |
2079 | RETURN_OK(); \ | |
2080 | } \ | |
970f279a AJ |
2081 | SP_API enum sp_return sp_set_config_##x(struct sp_port_config *config, \ |
2082 | type x) { \ | |
9b1502ef ML |
2083 | TRACE("%p, %d", config, x); \ |
2084 | if (!config) \ | |
2085 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2086 | config->x = x; \ | |
2087 | RETURN_OK(); \ | |
9069c2fb ML |
2088 | } |
2089 | ||
9b1502ef ML |
2090 | CREATE_ACCESSORS(baudrate, int) |
2091 | CREATE_ACCESSORS(bits, int) | |
2092 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2093 | CREATE_ACCESSORS(stopbits, int) | |
2094 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2095 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2096 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2097 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2098 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2099 | ||
970f279a AJ |
2100 | SP_API enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, |
2101 | enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2102 | { |
9b1502ef ML |
2103 | if (!config) |
2104 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2105 | |
2106 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2107 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2108 | |
e33ab9aa | 2109 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2110 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2111 | else |
9b1502ef | 2112 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2113 | |
2114 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2115 | config->rts = SP_RTS_FLOW_CONTROL; |
2116 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2117 | } else { |
9b1502ef ML |
2118 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2119 | config->rts = SP_RTS_ON; | |
2120 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2121 | } |
2122 | ||
2123 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2124 | config->dtr = SP_DTR_FLOW_CONTROL; |
2125 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2126 | } else { |
9b1502ef ML |
2127 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2128 | config->dtr = SP_DTR_ON; | |
2129 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2130 | } |
2131 | ||
9b1502ef ML |
2132 | RETURN_OK(); |
2133 | } | |
2134 | ||
970f279a AJ |
2135 | SP_API enum sp_return sp_set_flowcontrol(struct sp_port *port, |
2136 | enum sp_flowcontrol flowcontrol) | |
9b1502ef ML |
2137 | { |
2138 | struct port_data data; | |
2139 | struct sp_port_config config; | |
2140 | ||
2141 | TRACE("%p, %d", port, flowcontrol); | |
2142 | ||
2143 | CHECK_OPEN_PORT(); | |
2144 | ||
2145 | TRY(get_config(port, &data, &config)); | |
2146 | ||
2147 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2148 | ||
e33ab9aa ML |
2149 | TRY(set_config(port, &data, &config)); |
2150 | ||
c33efc48 | 2151 | RETURN_OK(); |
e33ab9aa ML |
2152 | } |
2153 | ||
970f279a AJ |
2154 | SP_API enum sp_return sp_get_signals(struct sp_port *port, |
2155 | enum sp_signal *signals) | |
8cf7c697 | 2156 | { |
c33efc48 ML |
2157 | TRACE("%p, %p", port, signals); |
2158 | ||
dec10e31 | 2159 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2160 | |
2161 | if (!signals) | |
c33efc48 | 2162 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2163 | |
7890cef6 | 2164 | DEBUG_FMT("Getting control signals for port %s", port->name); |
ea667be7 | 2165 | |
8cf7c697 ML |
2166 | *signals = 0; |
2167 | #ifdef _WIN32 | |
2168 | DWORD bits; | |
2169 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2170 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2171 | if (bits & MS_CTS_ON) |
2172 | *signals |= SP_SIG_CTS; | |
2173 | if (bits & MS_DSR_ON) | |
2174 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2175 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2176 | *signals |= SP_SIG_DCD; |
2177 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2178 | *signals |= SP_SIG_RI; |
2179 | #else | |
2180 | int bits; | |
2181 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2182 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2183 | if (bits & TIOCM_CTS) |
2184 | *signals |= SP_SIG_CTS; | |
2185 | if (bits & TIOCM_DSR) | |
2186 | *signals |= SP_SIG_DSR; | |
2187 | if (bits & TIOCM_CAR) | |
2188 | *signals |= SP_SIG_DCD; | |
2189 | if (bits & TIOCM_RNG) | |
2190 | *signals |= SP_SIG_RI; | |
2191 | #endif | |
c33efc48 | 2192 | RETURN_OK(); |
8cf7c697 ML |
2193 | } |
2194 | ||
970f279a | 2195 | SP_API enum sp_return sp_start_break(struct sp_port *port) |
90cc3ee6 | 2196 | { |
c33efc48 ML |
2197 | TRACE("%p", port); |
2198 | ||
dec10e31 | 2199 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2200 | #ifdef _WIN32 |
2201 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2202 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2203 | #else |
2204 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2205 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2206 | #endif |
2207 | ||
c33efc48 | 2208 | RETURN_OK(); |
90cc3ee6 ML |
2209 | } |
2210 | ||
970f279a | 2211 | SP_API enum sp_return sp_end_break(struct sp_port *port) |
90cc3ee6 | 2212 | { |
c33efc48 ML |
2213 | TRACE("%p", port); |
2214 | ||
dec10e31 | 2215 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2216 | #ifdef _WIN32 |
2217 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2218 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2219 | #else |
2220 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2221 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2222 | #endif |
2223 | ||
c33efc48 | 2224 | RETURN_OK(); |
90cc3ee6 ML |
2225 | } |
2226 | ||
970f279a | 2227 | SP_API int sp_last_error_code(void) |
74510d4b | 2228 | { |
7890cef6 | 2229 | TRACE_VOID(); |
74510d4b | 2230 | #ifdef _WIN32 |
9caa2e86 | 2231 | RETURN_INT(GetLastError()); |
74510d4b | 2232 | #else |
9caa2e86 | 2233 | RETURN_INT(errno); |
74510d4b ML |
2234 | #endif |
2235 | } | |
2236 | ||
970f279a | 2237 | SP_API char *sp_last_error_message(void) |
74510d4b | 2238 | { |
7890cef6 | 2239 | TRACE_VOID(); |
c33efc48 | 2240 | |
74510d4b ML |
2241 | #ifdef _WIN32 |
2242 | LPVOID message; | |
2243 | DWORD error = GetLastError(); | |
2244 | ||
2245 | FormatMessage( | |
2246 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2247 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2248 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2249 | NULL, | |
2250 | error, | |
2251 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2252 | (LPTSTR) &message, | |
2253 | 0, NULL ); | |
2254 | ||
9caa2e86 | 2255 | RETURN_STRING(message); |
74510d4b | 2256 | #else |
9caa2e86 | 2257 | RETURN_STRING(strerror(errno)); |
74510d4b ML |
2258 | #endif |
2259 | } | |
2260 | ||
970f279a | 2261 | SP_API void sp_free_error_message(char *message) |
74510d4b | 2262 | { |
c33efc48 ML |
2263 | TRACE("%s", message); |
2264 | ||
74510d4b ML |
2265 | #ifdef _WIN32 |
2266 | LocalFree(message); | |
64eec30d ML |
2267 | #else |
2268 | (void)message; | |
74510d4b | 2269 | #endif |
c33efc48 ML |
2270 | |
2271 | RETURN(); | |
74510d4b | 2272 | } |
863b35e6 | 2273 | |
970f279a | 2274 | SP_API void sp_set_debug_handler(void (*handler)(const char *format, ...)) |
863b35e6 | 2275 | { |
c33efc48 ML |
2276 | TRACE("%p", handler); |
2277 | ||
863b35e6 | 2278 | sp_debug_handler = handler; |
c33efc48 ML |
2279 | |
2280 | RETURN(); | |
863b35e6 ML |
2281 | } |
2282 | ||
970f279a | 2283 | SP_API void sp_default_debug_handler(const char *format, ...) |
863b35e6 ML |
2284 | { |
2285 | va_list args; | |
2286 | va_start(args, format); | |
2287 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2288 | fputs("sp: ", stderr); |
863b35e6 ML |
2289 | vfprintf(stderr, format, args); |
2290 | } | |
2291 | va_end(args); | |
2292 | } | |
524b0e14 | 2293 | |
970f279a | 2294 | SP_API int sp_get_major_package_version(void) |
524b0e14 UH |
2295 | { |
2296 | return SP_PACKAGE_VERSION_MAJOR; | |
2297 | } | |
2298 | ||
970f279a | 2299 | SP_API int sp_get_minor_package_version(void) |
524b0e14 UH |
2300 | { |
2301 | return SP_PACKAGE_VERSION_MINOR; | |
2302 | } | |
2303 | ||
970f279a | 2304 | SP_API int sp_get_micro_package_version(void) |
524b0e14 UH |
2305 | { |
2306 | return SP_PACKAGE_VERSION_MICRO; | |
2307 | } | |
2308 | ||
970f279a | 2309 | SP_API const char *sp_get_package_version_string(void) |
524b0e14 UH |
2310 | { |
2311 | return SP_PACKAGE_VERSION_STRING; | |
2312 | } | |
2313 | ||
970f279a | 2314 | SP_API int sp_get_current_lib_version(void) |
524b0e14 UH |
2315 | { |
2316 | return SP_LIB_VERSION_CURRENT; | |
2317 | } | |
2318 | ||
970f279a | 2319 | SP_API int sp_get_revision_lib_version(void) |
524b0e14 UH |
2320 | { |
2321 | return SP_LIB_VERSION_REVISION; | |
2322 | } | |
2323 | ||
970f279a | 2324 | SP_API int sp_get_age_lib_version(void) |
524b0e14 UH |
2325 | { |
2326 | return SP_LIB_VERSION_AGE; | |
2327 | } | |
2328 | ||
970f279a | 2329 | SP_API const char *sp_get_lib_version_string(void) |
524b0e14 UH |
2330 | { |
2331 | return SP_LIB_VERSION_STRING; | |
2332 | } | |
2333 | ||
2334 | /** @} */ |