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