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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> |
74510d4b ML |
8 | * |
9 | * This program is free software: you can redistribute it and/or modify | |
10 | * it under the terms of the GNU Lesser General Public License as | |
11 | * published by the Free Software Foundation, either version 3 of the | |
12 | * License, or (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public License | |
20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | #include <string.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <unistd.h> | |
3b63f34d ML |
28 | #include <stdlib.h> |
29 | #include <errno.h> | |
863b35e6 ML |
30 | #include <stdio.h> |
31 | #include <stdarg.h> | |
74510d4b ML |
32 | #ifdef _WIN32 |
33 | #include <windows.h> | |
3b63f34d | 34 | #include <tchar.h> |
74510d4b | 35 | #else |
8fbf876d | 36 | #include <limits.h> |
74510d4b ML |
37 | #include <termios.h> |
38 | #include <sys/ioctl.h> | |
e3dcf906 ML |
39 | #include <sys/time.h> |
40 | #include <limits.h> | |
6f1186aa | 41 | #include <poll.h> |
74510d4b | 42 | #endif |
3b63f34d | 43 | #ifdef __APPLE__ |
1ebf4347 ML |
44 | #include <IOKit/IOKitLib.h> |
45 | #include <IOKit/serial/IOSerialKeys.h> | |
31b3a8f5 | 46 | #include <IOKit/serial/ioss.h> |
1ebf4347 | 47 | #include <sys/syslimits.h> |
3b63f34d ML |
48 | #endif |
49 | #ifdef __linux__ | |
397d89de | 50 | #ifdef HAVE_LIBUDEV |
3b63f34d | 51 | #include "libudev.h" |
397d89de | 52 | #endif |
33fd8804 | 53 | #ifndef __ANDROID__ |
4b97c9fc | 54 | #include "linux/serial.h" |
33fd8804 | 55 | #endif |
7a6d2196 | 56 | #include "linux_termios.h" |
6c8716e9 UH |
57 | |
58 | /* TCGETX/TCSETX is not available everywhere. */ | |
40978c2b | 59 | #if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX) |
68ec29db | 60 | #define USE_TERMIOX |
40978c2b | 61 | #endif |
3b63f34d | 62 | #endif |
74510d4b | 63 | |
6c8716e9 UH |
64 | /* TIOCINQ/TIOCOUTQ is not available everywhere. */ |
65 | #if !defined(TIOCINQ) && defined(FIONREAD) | |
66 | #define TIOCINQ FIONREAD | |
67 | #endif | |
68 | #if !defined(TIOCOUTQ) && defined(FIONWRITE) | |
69 | #define TIOCOUTQ FIONWRITE | |
70 | #endif | |
71 | ||
5cea279a ML |
72 | /* Non-standard baudrates are not available everywhere. */ |
73 | #if defined(HAVE_TERMIOS_SPEED) || defined(HAVE_TERMIOS2_SPEED) | |
74 | #define USE_TERMIOS_SPEED | |
75 | #endif | |
76 | ||
f6a1fb65 | 77 | #include "libserialport.h" |
74510d4b | 78 | |
1c5aae9d ML |
79 | struct sp_port { |
80 | char *name; | |
81 | #ifdef _WIN32 | |
82 | HANDLE hdl; | |
e3dcf906 | 83 | COMMTIMEOUTS timeouts; |
a3cb91f5 | 84 | OVERLAPPED write_ovl; |
e3dcf906 | 85 | OVERLAPPED read_ovl; |
6f1186aa ML |
86 | OVERLAPPED wait_ovl; |
87 | DWORD events; | |
0765af56 | 88 | BYTE pending_byte; |
a3cb91f5 | 89 | BOOL writing; |
1c5aae9d ML |
90 | #else |
91 | int fd; | |
92 | #endif | |
93 | }; | |
94 | ||
9b1502ef ML |
95 | struct sp_port_config { |
96 | int baudrate; | |
97 | int bits; | |
98 | enum sp_parity parity; | |
99 | int stopbits; | |
100 | enum sp_rts rts; | |
101 | enum sp_cts cts; | |
102 | enum sp_dtr dtr; | |
103 | enum sp_dsr dsr; | |
104 | enum sp_xonxoff xon_xoff; | |
105 | }; | |
106 | ||
8f189c4c | 107 | struct port_data { |
8094e4a0 ML |
108 | #ifdef _WIN32 |
109 | DCB dcb; | |
110 | #else | |
111 | struct termios term; | |
824dcb45 | 112 | int controlbits; |
68ec29db | 113 | int termiox_supported; |
bd791fe1 ML |
114 | int rts_flow; |
115 | int cts_flow; | |
116 | int dtr_flow; | |
117 | int dsr_flow; | |
40978c2b | 118 | #endif |
8094e4a0 ML |
119 | }; |
120 | ||
6f1186aa ML |
121 | #ifdef _WIN32 |
122 | typedef HANDLE event_handle; | |
123 | #else | |
124 | typedef int event_handle; | |
125 | #endif | |
126 | ||
da2748bf ML |
127 | /* Standard baud rates. */ |
128 | #ifdef _WIN32 | |
129 | #define BAUD_TYPE DWORD | |
130 | #define BAUD(n) {CBR_##n, n} | |
131 | #else | |
132 | #define BAUD_TYPE speed_t | |
133 | #define BAUD(n) {B##n, n} | |
134 | #endif | |
135 | ||
136 | struct std_baudrate { | |
137 | BAUD_TYPE index; | |
138 | int value; | |
139 | }; | |
140 | ||
141 | const struct std_baudrate std_baudrates[] = { | |
142 | #ifdef _WIN32 | |
143 | /* | |
144 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
145 | * have documented CBR_* macros. | |
146 | */ | |
147 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
148 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 149 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 150 | #else |
eac329d2 UH |
151 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
152 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
153 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
154 | BAUD(230400), | |
da2748bf | 155 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 156 | BAUD(460800), |
da2748bf ML |
157 | #endif |
158 | #endif | |
159 | }; | |
160 | ||
863b35e6 ML |
161 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
162 | ||
da2748bf ML |
163 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
164 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) | |
165 | ||
92f756f8 ML |
166 | /* Debug output macros. */ |
167 | #define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0) | |
8edf649c AJ |
168 | #define DEBUG_ERROR(err, fmt, ...) DEBUG("%s returning " #err ": " fmt, __func__, ##__VA_ARGS__) |
169 | #define DEBUG_FAIL(fmt, ...) do { \ | |
92f756f8 | 170 | char *errmsg = sp_last_error_message(); \ |
8edf649c | 171 | DEBUG("%s returning SP_ERR_FAIL: "fmt": %s", __func__,##__VA_ARGS__,errmsg); \ |
92f756f8 ML |
172 | sp_free_error_message(errmsg); \ |
173 | } while (0); | |
174 | #define RETURN() do { DEBUG("%s returning", __func__); return; } while(0) | |
175 | #define RETURN_CODE(x) do { DEBUG("%s returning " #x, __func__); return x; } while (0) | |
176 | #define RETURN_CODEVAL(x) do { \ | |
177 | switch (x) { \ | |
178 | case SP_OK: RETURN_CODE(SP_OK); \ | |
179 | case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \ | |
180 | case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \ | |
181 | case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \ | |
182 | case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \ | |
183 | } \ | |
184 | } while (0) | |
185 | #define RETURN_OK() RETURN_CODE(SP_OK); | |
8edf649c AJ |
186 | #define RETURN_ERROR(err, ...) do { DEBUG_ERROR(err, __VA_ARGS__); return err; } while (0) |
187 | #define RETURN_FAIL(...) do { DEBUG_FAIL(__VA_ARGS__); return SP_ERR_FAIL; } while (0) | |
7c1eff54 ML |
188 | #define RETURN_VALUE(fmt, x) do { \ |
189 | typeof(x) _x = x; \ | |
190 | DEBUG("%s returning " fmt, __func__, _x); \ | |
191 | return _x; \ | |
192 | } while (0) | |
92f756f8 | 193 | #define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0) |
aac4d7f2 | 194 | #define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = SP_ERR_FAIL; } while (0) |
92f756f8 ML |
195 | #define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__) |
196 | ||
64690702 ML |
197 | #define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0) |
198 | ||
348e23cc | 199 | /* Helper functions. */ |
eb6ed20f ML |
200 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
201 | struct sp_port_config *config); | |
202 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, | |
203 | const struct sp_port_config *config); | |
80186526 | 204 | |
eb6ed20f | 205 | enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
206 | { |
207 | struct sp_port *port; | |
5919c913 | 208 | int len; |
d54e9004 | 209 | |
c33efc48 ML |
210 | TRACE("%s, %p", portname, port_ptr); |
211 | ||
32b5ac05 | 212 | if (!port_ptr) |
c33efc48 | 213 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 214 | |
77f262c4 ML |
215 | *port_ptr = NULL; |
216 | ||
d4babed2 | 217 | if (!portname) |
c33efc48 | 218 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 219 | |
ea667be7 ML |
220 | DEBUG("Building structure for port %s", portname); |
221 | ||
d54e9004 | 222 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 223 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 224 | |
5919c913 ML |
225 | len = strlen(portname) + 1; |
226 | ||
eac329d2 | 227 | if (!(port->name = malloc(len))) { |
d54e9004 | 228 | free(port); |
c33efc48 | 229 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
230 | } |
231 | ||
232 | memcpy(port->name, portname, len); | |
233 | ||
8f471c66 ML |
234 | #ifdef _WIN32 |
235 | port->hdl = INVALID_HANDLE_VALUE; | |
236 | #else | |
237 | port->fd = -1; | |
238 | #endif | |
239 | ||
77f262c4 ML |
240 | *port_ptr = port; |
241 | ||
c33efc48 | 242 | RETURN_OK(); |
d54e9004 ML |
243 | } |
244 | ||
1c5aae9d ML |
245 | char *sp_get_port_name(const struct sp_port *port) |
246 | { | |
247 | TRACE("%p", port); | |
248 | ||
249 | if (!port) | |
250 | return NULL; | |
251 | ||
252 | RETURN_VALUE("%s", port->name); | |
253 | } | |
254 | ||
3c126654 ML |
255 | enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr) |
256 | { | |
00d8c56d | 257 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
258 | |
259 | if (!port) | |
260 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
261 | ||
262 | #ifdef _WIN32 | |
263 | HANDLE *handle_ptr = result_ptr; | |
264 | *handle_ptr = port->hdl; | |
265 | #else | |
266 | int *fd_ptr = result_ptr; | |
267 | *fd_ptr = port->fd; | |
268 | #endif | |
269 | ||
270 | RETURN_OK(); | |
271 | } | |
272 | ||
eb6ed20f | 273 | enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr) |
32b5ac05 | 274 | { |
c33efc48 ML |
275 | TRACE("%p, %p", port, copy_ptr); |
276 | ||
32b5ac05 | 277 | if (!copy_ptr) |
c33efc48 | 278 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
279 | |
280 | *copy_ptr = NULL; | |
281 | ||
c33efc48 ML |
282 | if (!port) |
283 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
284 | ||
285 | if (!port->name) | |
286 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 287 | |
ea667be7 ML |
288 | DEBUG("Copying port structure"); |
289 | ||
c33efc48 | 290 | RETURN_VALUE("%p", sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
291 | } |
292 | ||
e3b2f7a4 ML |
293 | void sp_free_port(struct sp_port *port) |
294 | { | |
c33efc48 ML |
295 | TRACE("%p", port); |
296 | ||
00d8c56d | 297 | if (!port) { |
c33efc48 ML |
298 | DEBUG("Null port"); |
299 | RETURN(); | |
300 | } | |
e3b2f7a4 | 301 | |
ea667be7 ML |
302 | DEBUG("Freeing port structure"); |
303 | ||
e3b2f7a4 ML |
304 | if (port->name) |
305 | free(port->name); | |
306 | ||
307 | free(port); | |
c33efc48 ML |
308 | |
309 | RETURN(); | |
e3b2f7a4 ML |
310 | } |
311 | ||
348e23cc | 312 | static struct sp_port **list_append(struct sp_port **list, const char *portname) |
3b63f34d ML |
313 | { |
314 | void *tmp; | |
315 | unsigned int count; | |
f92f1f0c | 316 | |
3b63f34d | 317 | for (count = 0; list[count]; count++); |
d54e9004 | 318 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
319 | goto fail; |
320 | list = tmp; | |
77f262c4 | 321 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 322 | goto fail; |
db2794ce | 323 | list[count + 1] = NULL; |
3b63f34d | 324 | return list; |
f92f1f0c | 325 | |
3b63f34d ML |
326 | fail: |
327 | sp_free_port_list(list); | |
328 | return NULL; | |
329 | } | |
330 | ||
eb6ed20f | 331 | enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 332 | { |
d54e9004 | 333 | struct sp_port **list; |
6b93ede4 | 334 | int ret = SP_ERR_SUPP; |
24c1a4bb | 335 | |
c33efc48 ML |
336 | TRACE("%p", list_ptr); |
337 | ||
dec10e31 ML |
338 | if (!list_ptr) |
339 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
340 | ||
ea667be7 ML |
341 | DEBUG("Enumerating ports"); |
342 | ||
d54e9004 | 343 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 344 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
345 | |
346 | list[0] = NULL; | |
3b63f34d ML |
347 | |
348 | #ifdef _WIN32 | |
349 | HKEY key; | |
bdfb5b8c ML |
350 | TCHAR *value, *data; |
351 | DWORD max_value_len, max_data_size, max_data_len; | |
352 | DWORD value_len, data_size, data_len; | |
3b63f34d | 353 | DWORD type, index = 0; |
8b532d9c ML |
354 | char *name; |
355 | int name_len; | |
3b63f34d | 356 | |
6b93ede4 ML |
357 | ret = SP_OK; |
358 | ||
ea667be7 | 359 | DEBUG("Opening registry key"); |
3b63f34d | 360 | if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"), |
eac329d2 | 361 | 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) { |
c33efc48 | 362 | SET_FAIL(ret, "RegOpenKeyEx() failed"); |
77f262c4 ML |
363 | goto out_done; |
364 | } | |
ea667be7 | 365 | DEBUG("Querying registry key value and data sizes"); |
3b63f34d | 366 | if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
eac329d2 | 367 | &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) { |
c33efc48 | 368 | SET_FAIL(ret, "RegQueryInfoKey() failed"); |
3b63f34d | 369 | goto out_close; |
77f262c4 | 370 | } |
3b63f34d | 371 | max_data_len = max_data_size / sizeof(TCHAR); |
eac329d2 | 372 | if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 373 | SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed"); |
3b63f34d | 374 | goto out_close; |
77f262c4 | 375 | } |
eac329d2 | 376 | if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 377 | SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed"); |
bdfb5b8c | 378 | goto out_free_value; |
77f262c4 | 379 | } |
ea667be7 | 380 | DEBUG("Iterating over values"); |
3b63f34d | 381 | while ( |
d9573bad | 382 | value_len = max_value_len + 1, |
3b63f34d | 383 | data_size = max_data_size, |
bdfb5b8c | 384 | RegEnumValue(key, index, value, &value_len, |
3b63f34d ML |
385 | NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS) |
386 | { | |
387 | data_len = data_size / sizeof(TCHAR); | |
388 | data[data_len] = '\0'; | |
8b532d9c | 389 | #ifdef UNICODE |
904ac164 | 390 | name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL); |
8b532d9c ML |
391 | #else |
392 | name_len = data_len + 1; | |
393 | #endif | |
eac329d2 | 394 | if (!(name = malloc(name_len))) { |
c33efc48 | 395 | SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed"); |
8b532d9c | 396 | goto out; |
77f262c4 | 397 | } |
8b532d9c ML |
398 | #ifdef UNICODE |
399 | WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL); | |
400 | #else | |
401 | strcpy(name, data); | |
402 | #endif | |
c33efc48 ML |
403 | if (type == REG_SZ) { |
404 | DEBUG("Found port %s", name); | |
405 | if (!(list = list_append(list, name))) { | |
406 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
407 | goto out; | |
408 | } | |
77f262c4 | 409 | } |
3b63f34d ML |
410 | index++; |
411 | } | |
412 | out: | |
413 | free(data); | |
bdfb5b8c ML |
414 | out_free_value: |
415 | free(value); | |
3b63f34d ML |
416 | out_close: |
417 | RegCloseKey(key); | |
77f262c4 | 418 | out_done: |
3b63f34d ML |
419 | #endif |
420 | #ifdef __APPLE__ | |
3b63f34d ML |
421 | CFMutableDictionaryRef classes; |
422 | io_iterator_t iter; | |
073c86bd | 423 | char path[PATH_MAX]; |
3b63f34d ML |
424 | io_object_t port; |
425 | CFTypeRef cf_path; | |
426 | Boolean result; | |
427 | ||
6b93ede4 ML |
428 | ret = SP_OK; |
429 | ||
ea667be7 | 430 | DEBUG("Creating matching dictionary"); |
eac329d2 | 431 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) { |
c33efc48 | 432 | SET_FAIL(ret, "IOServiceMatching() failed"); |
77f262c4 ML |
433 | goto out_done; |
434 | } | |
3b63f34d | 435 | |
ea667be7 | 436 | DEBUG("Getting matching services"); |
073c86bd AJ |
437 | if (IOServiceGetMatchingServices(kIOMasterPortDefault, classes, |
438 | &iter) != KERN_SUCCESS) { | |
c33efc48 | 439 | SET_FAIL(ret, "IOServiceGetMatchingServices() failed"); |
77f262c4 ML |
440 | goto out_done; |
441 | } | |
3b63f34d | 442 | |
ea667be7 | 443 | DEBUG("Iterating over results"); |
1ebf4347 | 444 | while ((port = IOIteratorNext(iter))) { |
3b63f34d ML |
445 | cf_path = IORegistryEntryCreateCFProperty(port, |
446 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
447 | if (cf_path) { | |
073c86bd AJ |
448 | result = CFStringGetCString(cf_path, path, sizeof(path), |
449 | kCFStringEncodingASCII); | |
3b63f34d | 450 | CFRelease(cf_path); |
c33efc48 ML |
451 | if (result) { |
452 | DEBUG("Found port %s", path); | |
453 | if (!(list = list_append(list, path))) { | |
454 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
455 | IOObjectRelease(port); | |
456 | goto out; | |
457 | } | |
77f262c4 | 458 | } |
3b63f34d ML |
459 | } |
460 | IOObjectRelease(port); | |
461 | } | |
3b63f34d | 462 | out: |
3b63f34d | 463 | IOObjectRelease(iter); |
77f262c4 | 464 | out_done: |
3b63f34d | 465 | #endif |
397d89de | 466 | #if defined(__linux__) && defined(HAVE_LIBUDEV) |
3b63f34d ML |
467 | struct udev *ud; |
468 | struct udev_enumerate *ud_enumerate; | |
469 | struct udev_list_entry *ud_list; | |
470 | struct udev_list_entry *ud_entry; | |
471 | const char *path; | |
08fe0bdb | 472 | struct udev_device *ud_dev, *ud_parent; |
3b63f34d | 473 | const char *name; |
4b97c9fc ML |
474 | const char *driver; |
475 | int fd, ioctl_result; | |
476 | struct serial_struct serial_info; | |
3b63f34d | 477 | |
6b93ede4 ML |
478 | ret = SP_OK; |
479 | ||
ea667be7 | 480 | DEBUG("Enumerating tty devices"); |
3b63f34d ML |
481 | ud = udev_new(); |
482 | ud_enumerate = udev_enumerate_new(ud); | |
483 | udev_enumerate_add_match_subsystem(ud_enumerate, "tty"); | |
484 | udev_enumerate_scan_devices(ud_enumerate); | |
485 | ud_list = udev_enumerate_get_list_entry(ud_enumerate); | |
ea667be7 | 486 | DEBUG("Iterating over results"); |
eac329d2 | 487 | udev_list_entry_foreach(ud_entry, ud_list) { |
3b63f34d | 488 | path = udev_list_entry_get_name(ud_entry); |
ea667be7 | 489 | DEBUG("Found device %s", path); |
3b63f34d | 490 | ud_dev = udev_device_new_from_syspath(ud, path); |
08fe0bdb ML |
491 | /* If there is no parent device, this is a virtual tty. */ |
492 | ud_parent = udev_device_get_parent(ud_dev); | |
eac329d2 | 493 | if (ud_parent == NULL) { |
ea667be7 | 494 | DEBUG("No parent device, assuming virtual tty"); |
08fe0bdb ML |
495 | udev_device_unref(ud_dev); |
496 | continue; | |
497 | } | |
3b63f34d | 498 | name = udev_device_get_devnode(ud_dev); |
4b97c9fc ML |
499 | /* The serial8250 driver has a hardcoded number of ports. |
500 | * The only way to tell which actually exist on a given system | |
501 | * is to try to open them and make an ioctl call. */ | |
502 | driver = udev_device_get_driver(ud_parent); | |
eac329d2 | 503 | if (driver && !strcmp(driver, "serial8250")) { |
ea667be7 ML |
504 | DEBUG("serial8250 device, attempting to open"); |
505 | if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) { | |
506 | DEBUG("open failed, skipping"); | |
4b97c9fc | 507 | goto skip; |
ea667be7 | 508 | } |
4b97c9fc ML |
509 | ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info); |
510 | close(fd); | |
ea667be7 ML |
511 | if (ioctl_result != 0) { |
512 | DEBUG("ioctl failed, skipping"); | |
4b97c9fc | 513 | goto skip; |
ea667be7 ML |
514 | } |
515 | if (serial_info.type == PORT_UNKNOWN) { | |
516 | DEBUG("port type is unknown, skipping"); | |
4b97c9fc | 517 | goto skip; |
ea667be7 | 518 | } |
4b97c9fc | 519 | } |
c33efc48 | 520 | DEBUG("Found port %s", name); |
348e23cc | 521 | list = list_append(list, name); |
4b97c9fc | 522 | skip: |
3b63f34d | 523 | udev_device_unref(ud_dev); |
eac329d2 | 524 | if (!list) { |
c33efc48 | 525 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); |
3b63f34d | 526 | goto out; |
77f262c4 | 527 | } |
3b63f34d ML |
528 | } |
529 | out: | |
530 | udev_enumerate_unref(ud_enumerate); | |
531 | udev_unref(ud); | |
3b63f34d | 532 | #endif |
77f262c4 | 533 | |
6b93ede4 ML |
534 | switch (ret) { |
535 | case SP_OK: | |
77f262c4 | 536 | *list_ptr = list; |
c33efc48 | 537 | RETURN_OK(); |
6b93ede4 | 538 | case SP_ERR_SUPP: |
9af8cff3 | 539 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); |
6b93ede4 | 540 | default: |
77f262c4 ML |
541 | if (list) |
542 | sp_free_port_list(list); | |
77f262c4 | 543 | *list_ptr = NULL; |
c33efc48 | 544 | return ret; |
77f262c4 | 545 | } |
3b63f34d ML |
546 | } |
547 | ||
d54e9004 | 548 | void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
549 | { |
550 | unsigned int i; | |
f92f1f0c | 551 | |
c33efc48 ML |
552 | TRACE("%p", list); |
553 | ||
dec10e31 ML |
554 | if (!list) { |
555 | DEBUG("Null list"); | |
556 | RETURN(); | |
557 | } | |
558 | ||
ea667be7 ML |
559 | DEBUG("Freeing port list"); |
560 | ||
3b63f34d | 561 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 562 | sp_free_port(list[i]); |
3b63f34d | 563 | free(list); |
c33efc48 ML |
564 | |
565 | RETURN(); | |
3b63f34d ML |
566 | } |
567 | ||
c33efc48 ML |
568 | #define CHECK_PORT() do { \ |
569 | if (port == NULL) \ | |
570 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
dec10e31 ML |
571 | if (port->name == NULL) \ |
572 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ | |
573 | } while (0) | |
574 | #ifdef _WIN32 | |
575 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
576 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
577 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 578 | } while (0) |
74510d4b | 579 | #else |
dec10e31 | 580 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
581 | if (port->fd < 0) \ |
582 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 583 | } while (0) |
74510d4b | 584 | #endif |
dec10e31 ML |
585 | #define CHECK_OPEN_PORT() do { \ |
586 | CHECK_PORT(); \ | |
587 | CHECK_PORT_HANDLE(); \ | |
588 | } while (0) | |
74510d4b | 589 | |
eb6ed20f | 590 | enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 591 | { |
bccc7c9f ML |
592 | struct port_data data; |
593 | struct sp_port_config config; | |
594 | enum sp_return ret; | |
595 | ||
00d8c56d | 596 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 597 | |
dec10e31 ML |
598 | CHECK_PORT(); |
599 | ||
e3dcf906 | 600 | if (flags > (SP_MODE_READ | SP_MODE_WRITE)) |
dec10e31 | 601 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 602 | |
ea667be7 ML |
603 | DEBUG("Opening port %s", port->name); |
604 | ||
74510d4b | 605 | #ifdef _WIN32 |
537942c9 | 606 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 607 | char *escaped_port_name; |
537942c9 | 608 | COMSTAT status; |
99945a1f ML |
609 | |
610 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
e48f0ece | 611 | if (!(escaped_port_name = malloc(strlen(port->name) + 5))) |
c33efc48 | 612 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
613 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
614 | ||
74510d4b | 615 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 616 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
617 | if (flags & SP_MODE_READ) |
618 | desired_access |= GENERIC_READ; | |
619 | if (flags & SP_MODE_WRITE) | |
74510d4b | 620 | desired_access |= GENERIC_WRITE; |
74510d4b | 621 | |
99945a1f | 622 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 623 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
624 | |
625 | free(escaped_port_name); | |
626 | ||
74510d4b | 627 | if (port->hdl == INVALID_HANDLE_VALUE) |
e3dcf906 ML |
628 | RETURN_FAIL("port CreateFile() failed"); |
629 | ||
630 | /* All timeouts initially disabled. */ | |
631 | port->timeouts.ReadIntervalTimeout = 0; | |
632 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
633 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
634 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
635 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 636 | |
e3dcf906 | 637 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
638 | sp_close(port); |
639 | RETURN_FAIL("SetCommTimeouts() failed"); | |
640 | } | |
e3dcf906 ML |
641 | |
642 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
643 | #define INIT_OVERLAPPED(ovl) do { \ |
644 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
645 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
646 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
647 | == INVALID_HANDLE_VALUE) { \ | |
648 | sp_close(port); \ | |
649 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
650 | } \ | |
651 | } while (0) | |
652 | ||
653 | INIT_OVERLAPPED(read_ovl); | |
654 | INIT_OVERLAPPED(write_ovl); | |
655 | INIT_OVERLAPPED(wait_ovl); | |
656 | ||
657 | /* Set event mask for RX and error events. */ | |
658 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 659 | sp_close(port); |
6f1186aa | 660 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 661 | } |
6f1186aa ML |
662 | |
663 | /* Start background operation for RX and error events. */ | |
664 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
665 | if (GetLastError() != ERROR_IO_PENDING) { | |
666 | sp_close(port); | |
667 | RETURN_FAIL("WaitCommEvent() failed"); | |
668 | } | |
e3dcf906 ML |
669 | } |
670 | ||
671 | port->writing = FALSE; | |
672 | ||
74510d4b | 673 | #else |
e3dcf906 | 674 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 675 | |
74510d4b | 676 | /* Map 'flags' to the OS-specific settings. */ |
a036341b | 677 | if (flags & (SP_MODE_READ | SP_MODE_WRITE)) |
74510d4b | 678 | flags_local |= O_RDWR; |
a036341b | 679 | else if (flags & SP_MODE_READ) |
74510d4b | 680 | flags_local |= O_RDONLY; |
a036341b ML |
681 | else if (flags & SP_MODE_WRITE) |
682 | flags_local |= O_WRONLY; | |
74510d4b ML |
683 | |
684 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 685 | RETURN_FAIL("open() failed"); |
bccc7c9f | 686 | #endif |
9cb98459 | 687 | |
e33ab9aa ML |
688 | ret = get_config(port, &data, &config); |
689 | ||
eac329d2 | 690 | if (ret < 0) { |
e33ab9aa | 691 | sp_close(port); |
c33efc48 | 692 | RETURN_CODEVAL(ret); |
e33ab9aa | 693 | } |
9cb98459 | 694 | |
bccc7c9f ML |
695 | /* Set sane port settings. */ |
696 | #ifdef _WIN32 | |
697 | data.dcb.fBinary = TRUE; | |
698 | data.dcb.fDsrSensitivity = FALSE; | |
699 | data.dcb.fErrorChar = FALSE; | |
700 | data.dcb.fNull = FALSE; | |
701 | data.dcb.fAbortOnError = TRUE; | |
702 | #else | |
b251be4b | 703 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
704 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
705 | #ifdef IUCLC | |
706 | data.term.c_iflag &= ~IUCLC; | |
707 | #endif | |
708 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
709 | #ifdef OLCUC | |
710 | data.term.c_oflag &= ~OLCUC; | |
711 | #endif | |
712 | #ifdef NLDLY | |
713 | data.term.c_oflag &= ~NLDLY; | |
714 | #endif | |
715 | #ifdef CRDLY | |
716 | data.term.c_oflag &= ~CRDLY; | |
717 | #endif | |
718 | #ifdef TABDLY | |
719 | data.term.c_oflag &= ~TABDLY; | |
720 | #endif | |
721 | #ifdef BSDLY | |
722 | data.term.c_oflag &= ~BSDLY; | |
723 | #endif | |
724 | #ifdef VTDLY | |
725 | data.term.c_oflag &= ~VTDLY; | |
726 | #endif | |
727 | #ifdef FFDLY | |
728 | data.term.c_oflag &= ~FFDLY; | |
729 | #endif | |
b251be4b | 730 | #ifdef OFILL |
9cb98459 ML |
731 | data.term.c_oflag &= ~OFILL; |
732 | #endif | |
c3e05092 | 733 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 734 | data.term.c_cc[VMIN] = 0; |
b251be4b | 735 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 736 | |
b251be4b ML |
737 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
738 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 739 | #endif |
9cb98459 | 740 | |
537942c9 | 741 | #ifdef _WIN32 |
1a2a1544 UH |
742 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
743 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
744 | #endif |
745 | ||
e33ab9aa ML |
746 | ret = set_config(port, &data, &config); |
747 | ||
eac329d2 | 748 | if (ret < 0) { |
e33ab9aa | 749 | sp_close(port); |
c33efc48 | 750 | RETURN_CODEVAL(ret); |
e33ab9aa | 751 | } |
74510d4b | 752 | |
c33efc48 | 753 | RETURN_OK(); |
74510d4b ML |
754 | } |
755 | ||
eb6ed20f | 756 | enum sp_return sp_close(struct sp_port *port) |
74510d4b | 757 | { |
c33efc48 ML |
758 | TRACE("%p", port); |
759 | ||
dec10e31 | 760 | CHECK_OPEN_PORT(); |
74510d4b | 761 | |
ea667be7 ML |
762 | DEBUG("Closing port %s", port->name); |
763 | ||
74510d4b ML |
764 | #ifdef _WIN32 |
765 | /* Returns non-zero upon success, 0 upon failure. */ | |
766 | if (CloseHandle(port->hdl) == 0) | |
e3dcf906 | 767 | RETURN_FAIL("port CloseHandle() failed"); |
8f471c66 | 768 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
769 | |
770 | /* Close event handles for overlapped structures. */ | |
771 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
772 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
773 | CloseHandle(port->ovl.hEvent) == 0) \ | |
774 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
775 | } while (0) | |
776 | CLOSE_OVERLAPPED(read_ovl); | |
777 | CLOSE_OVERLAPPED(write_ovl); | |
778 | CLOSE_OVERLAPPED(wait_ovl); | |
779 | ||
74510d4b ML |
780 | #else |
781 | /* Returns 0 upon success, -1 upon failure. */ | |
782 | if (close(port->fd) == -1) | |
c33efc48 | 783 | RETURN_FAIL("close() failed"); |
8f471c66 | 784 | port->fd = -1; |
74510d4b ML |
785 | #endif |
786 | ||
c33efc48 | 787 | RETURN_OK(); |
74510d4b ML |
788 | } |
789 | ||
fd8fd11a | 790 | enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 791 | { |
00d8c56d | 792 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 793 | |
dec10e31 ML |
794 | CHECK_OPEN_PORT(); |
795 | ||
796 | if (buffers > SP_BUF_BOTH) | |
797 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 798 | |
0ba3e49b | 799 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 ML |
800 | |
801 | DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name); | |
802 | ||
74510d4b | 803 | #ifdef _WIN32 |
fd8fd11a ML |
804 | DWORD flags = 0; |
805 | if (buffers & SP_BUF_INPUT) | |
806 | flags |= PURGE_RXCLEAR; | |
807 | if (buffers & SP_BUF_OUTPUT) | |
808 | flags |= PURGE_TXCLEAR; | |
809 | ||
74510d4b | 810 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 811 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 812 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 813 | #else |
fd8fd11a ML |
814 | int flags = 0; |
815 | if (buffers & SP_BUF_BOTH) | |
816 | flags = TCIOFLUSH; | |
817 | else if (buffers & SP_BUF_INPUT) | |
818 | flags = TCIFLUSH; | |
82f424e6 | 819 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
820 | flags = TCOFLUSH; |
821 | ||
74510d4b | 822 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 823 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 824 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 825 | #endif |
c33efc48 | 826 | RETURN_OK(); |
74510d4b ML |
827 | } |
828 | ||
69a3739c ML |
829 | enum sp_return sp_drain(struct sp_port *port) |
830 | { | |
c33efc48 ML |
831 | TRACE("%p", port); |
832 | ||
dec10e31 | 833 | CHECK_OPEN_PORT(); |
69a3739c | 834 | |
ea667be7 ML |
835 | DEBUG("Draining port %s", port->name); |
836 | ||
69a3739c ML |
837 | #ifdef _WIN32 |
838 | /* Returns non-zero upon success, 0 upon failure. */ | |
839 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 840 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 841 | RETURN_OK(); |
69a3739c | 842 | #else |
2c827b21 ML |
843 | int result; |
844 | while (1) { | |
33fd8804 ML |
845 | #ifdef __ANDROID__ |
846 | int arg = 1; | |
847 | result = ioctl(port->fd, TCSBRK, &arg); | |
848 | #else | |
2c827b21 | 849 | result = tcdrain(port->fd); |
33fd8804 | 850 | #endif |
2c827b21 ML |
851 | if (result < 0) { |
852 | if (errno == EINTR) { | |
853 | DEBUG("tcdrain() was interrupted"); | |
854 | continue; | |
855 | } else { | |
856 | RETURN_FAIL("tcdrain() failed"); | |
857 | } | |
858 | } else { | |
859 | RETURN_OK(); | |
860 | } | |
861 | } | |
69a3739c | 862 | #endif |
69a3739c ML |
863 | } |
864 | ||
e3dcf906 ML |
865 | enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, size_t count, unsigned int timeout) |
866 | { | |
867 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
868 | ||
869 | CHECK_OPEN_PORT(); | |
870 | ||
871 | if (!buf) | |
872 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
873 | ||
874 | if (timeout) | |
875 | DEBUG("Writing %d bytes to port %s, timeout %d ms", count, port->name, timeout); | |
876 | else | |
877 | DEBUG("Writing %d bytes to port %s, no timeout", count, port->name); | |
878 | ||
879 | if (count == 0) | |
880 | RETURN_VALUE("0", 0); | |
881 | ||
882 | #ifdef _WIN32 | |
883 | DWORD bytes_written = 0; | |
884 | BOOL result; | |
885 | ||
886 | /* Wait for previous non-blocking write to complete, if any. */ | |
887 | if (port->writing) { | |
888 | DEBUG("Waiting for previous write to complete"); | |
889 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
890 | port->writing = 0; | |
891 | if (!result) | |
892 | RETURN_FAIL("Previous write failed to complete"); | |
893 | DEBUG("Previous write completed"); | |
894 | } | |
895 | ||
896 | /* Set timeout. */ | |
897 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
898 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
899 | RETURN_FAIL("SetCommTimeouts() failed"); | |
900 | ||
901 | /* Start write. */ | |
902 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
903 | if (GetLastError() == ERROR_IO_PENDING) { | |
904 | DEBUG("Waiting for write to complete"); | |
905 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
906 | DEBUG("Write completed, %d/%d bytes written", bytes_written, count); | |
907 | RETURN_VALUE("%d", bytes_written); | |
908 | } else { | |
909 | RETURN_FAIL("WriteFile() failed"); | |
910 | } | |
911 | } else { | |
912 | DEBUG("Write completed immediately"); | |
913 | RETURN_VALUE("%d", count); | |
914 | } | |
915 | #else | |
916 | size_t bytes_written = 0; | |
917 | unsigned char *ptr = (unsigned char *) buf; | |
918 | struct timeval start, delta, now, end = {0, 0}; | |
919 | fd_set fds; | |
920 | int result; | |
921 | ||
922 | if (timeout) { | |
923 | /* Get time at start of operation. */ | |
924 | gettimeofday(&start, NULL); | |
925 | /* Define duration of timeout. */ | |
926 | delta.tv_sec = timeout / 1000; | |
1b342042 | 927 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
928 | /* Calculate time at which we should give up. */ |
929 | timeradd(&start, &delta, &end); | |
930 | } | |
931 | ||
932 | /* Loop until we have written the requested number of bytes. */ | |
933 | while (bytes_written < count) | |
934 | { | |
935 | /* Wait until space is available. */ | |
936 | FD_ZERO(&fds); | |
937 | FD_SET(port->fd, &fds); | |
938 | if (timeout) { | |
939 | gettimeofday(&now, NULL); | |
940 | if (timercmp(&now, &end, >)) { | |
941 | DEBUG("write timed out"); | |
942 | RETURN_VALUE("%d", bytes_written); | |
943 | } | |
944 | timersub(&end, &now, &delta); | |
945 | } | |
946 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
947 | if (result < 0) { |
948 | if (errno == EINTR) { | |
949 | DEBUG("select() call was interrupted, repeating"); | |
950 | continue; | |
951 | } else { | |
952 | RETURN_FAIL("select() failed"); | |
953 | } | |
954 | } else if (result == 0) { | |
e3dcf906 ML |
955 | DEBUG("write timed out"); |
956 | RETURN_VALUE("%d", bytes_written); | |
957 | } | |
958 | ||
959 | /* Do write. */ | |
960 | result = write(port->fd, ptr, count - bytes_written); | |
961 | ||
962 | if (result < 0) { | |
963 | if (errno == EAGAIN) | |
964 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
965 | continue; | |
966 | else | |
967 | /* This is an actual failure. */ | |
968 | RETURN_FAIL("write() failed"); | |
969 | } | |
970 | ||
971 | bytes_written += result; | |
972 | ptr += result; | |
973 | } | |
974 | ||
975 | RETURN_VALUE("%d", bytes_written); | |
976 | #endif | |
977 | } | |
978 | ||
979 | enum sp_return sp_nonblocking_write(struct sp_port *port, const void *buf, size_t count) | |
74510d4b | 980 | { |
c33efc48 ML |
981 | TRACE("%p, %p, %d", port, buf, count); |
982 | ||
dec10e31 | 983 | CHECK_OPEN_PORT(); |
74510d4b ML |
984 | |
985 | if (!buf) | |
c33efc48 | 986 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 987 | |
ea667be7 ML |
988 | DEBUG("Writing up to %d bytes to port %s", count, port->name); |
989 | ||
a3cb91f5 ML |
990 | if (count == 0) |
991 | RETURN_VALUE("0", 0); | |
992 | ||
74510d4b ML |
993 | #ifdef _WIN32 |
994 | DWORD written = 0; | |
0765af56 | 995 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 996 | |
e3dcf906 ML |
997 | /* Check whether previous write is complete. */ |
998 | if (port->writing) { | |
999 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
1000 | DEBUG("Previous write completed"); | |
1001 | port->writing = 0; | |
1002 | } else { | |
1003 | DEBUG("Previous write not complete"); | |
1004 | /* Can't take a new write until the previous one finishes. */ | |
1005 | RETURN_VALUE("0", 0); | |
a3cb91f5 | 1006 | } |
e3dcf906 | 1007 | } |
a3cb91f5 | 1008 | |
e3dcf906 ML |
1009 | /* Set timeout. */ |
1010 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
1011 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1012 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1013 | ||
1014 | /* Keep writing data until the OS has to actually start an async IO for it. | |
1015 | * At that point we know the buffer is full. */ | |
1016 | while (written < count) | |
1017 | { | |
1018 | /* Copy first byte of user buffer. */ | |
1019 | port->pending_byte = *ptr++; | |
1020 | ||
1021 | /* Start asynchronous write. */ | |
1022 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
1023 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
1024 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
1025 | DEBUG("Asynchronous write completed immediately"); | |
1026 | port->writing = 0; | |
1027 | written++; | |
1028 | continue; | |
1029 | } else { | |
1030 | DEBUG("Asynchronous write running"); | |
1031 | port->writing = 1; | |
1032 | RETURN_VALUE("%d", ++written); | |
1033 | } | |
a3cb91f5 | 1034 | } else { |
e3dcf906 ML |
1035 | /* Actual failure of some kind. */ |
1036 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 1037 | } |
e3dcf906 | 1038 | } else { |
9af8cff3 | 1039 | DEBUG("Single byte written immediately"); |
e3dcf906 | 1040 | written++; |
a3cb91f5 ML |
1041 | } |
1042 | } | |
1043 | ||
9af8cff3 | 1044 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1045 | |
c33efc48 | 1046 | RETURN_VALUE("%d", written); |
74510d4b ML |
1047 | #else |
1048 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1049 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1050 | |
74510d4b | 1051 | if (written < 0) |
c33efc48 | 1052 | RETURN_FAIL("write() failed"); |
74510d4b | 1053 | else |
c33efc48 | 1054 | RETURN_VALUE("%d", written); |
74510d4b ML |
1055 | #endif |
1056 | } | |
1057 | ||
e3dcf906 ML |
1058 | enum sp_return sp_blocking_read(struct sp_port *port, void *buf, size_t count, unsigned int timeout) |
1059 | { | |
1060 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
1061 | ||
1062 | CHECK_OPEN_PORT(); | |
1063 | ||
1064 | if (!buf) | |
1065 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1066 | ||
1067 | if (timeout) | |
1068 | DEBUG("Reading %d bytes from port %s, timeout %d ms", count, port->name, timeout); | |
1069 | else | |
1070 | DEBUG("Reading %d bytes from port %s, no timeout", count, port->name); | |
1071 | ||
1072 | if (count == 0) | |
1073 | RETURN_VALUE("0", 0); | |
1074 | ||
1075 | #ifdef _WIN32 | |
1076 | DWORD bytes_read = 0; | |
1077 | ||
1078 | /* Set timeout. */ | |
1079 | port->timeouts.ReadIntervalTimeout = 0; | |
1080 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
1081 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1082 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1083 | ||
1084 | /* Start read. */ | |
1085 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
1086 | if (GetLastError() == ERROR_IO_PENDING) { | |
1087 | DEBUG("Waiting for read to complete"); | |
1088 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
1089 | DEBUG("Read completed, %d/%d bytes read", bytes_read, count); | |
e3dcf906 ML |
1090 | } else { |
1091 | RETURN_FAIL("ReadFile() failed"); | |
1092 | } | |
1093 | } else { | |
1094 | DEBUG("Read completed immediately"); | |
6f1186aa ML |
1095 | bytes_read = count; |
1096 | } | |
1097 | ||
1098 | /* Start background operation for subsequent events. */ | |
1099 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
1100 | if (GetLastError() != ERROR_IO_PENDING) | |
1101 | RETURN_FAIL("WaitCommEvent() failed"); | |
e3dcf906 | 1102 | } |
6f1186aa ML |
1103 | |
1104 | RETURN_VALUE("%d", bytes_read); | |
1105 | ||
e3dcf906 ML |
1106 | #else |
1107 | size_t bytes_read = 0; | |
1108 | unsigned char *ptr = (unsigned char *) buf; | |
1109 | struct timeval start, delta, now, end = {0, 0}; | |
1110 | fd_set fds; | |
1111 | int result; | |
1112 | ||
1113 | if (timeout) { | |
1114 | /* Get time at start of operation. */ | |
1115 | gettimeofday(&start, NULL); | |
1116 | /* Define duration of timeout. */ | |
1117 | delta.tv_sec = timeout / 1000; | |
1b342042 | 1118 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
1119 | /* Calculate time at which we should give up. */ |
1120 | timeradd(&start, &delta, &end); | |
1121 | } | |
1122 | ||
1123 | /* Loop until we have the requested number of bytes. */ | |
1124 | while (bytes_read < count) | |
1125 | { | |
1126 | /* Wait until data is available. */ | |
1127 | FD_ZERO(&fds); | |
1128 | FD_SET(port->fd, &fds); | |
1129 | if (timeout) { | |
1130 | gettimeofday(&now, NULL); | |
1131 | if (timercmp(&now, &end, >)) | |
1132 | /* Timeout has expired. */ | |
1133 | RETURN_VALUE("%d", bytes_read); | |
1134 | timersub(&end, &now, &delta); | |
1135 | } | |
1136 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
1137 | if (result < 0) { |
1138 | if (errno == EINTR) { | |
1139 | DEBUG("select() call was interrupted, repeating"); | |
1140 | continue; | |
1141 | } else { | |
1142 | RETURN_FAIL("select() failed"); | |
1143 | } | |
1144 | } else if (result == 0) { | |
e3dcf906 ML |
1145 | DEBUG("read timed out"); |
1146 | RETURN_VALUE("%d", bytes_read); | |
1147 | } | |
1148 | ||
1149 | /* Do read. */ | |
1150 | result = read(port->fd, ptr, count - bytes_read); | |
1151 | ||
1152 | if (result < 0) { | |
1153 | if (errno == EAGAIN) | |
1154 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1155 | continue; | |
1156 | else | |
1157 | /* This is an actual failure. */ | |
1158 | RETURN_FAIL("read() failed"); | |
1159 | } | |
1160 | ||
1161 | bytes_read += result; | |
1162 | ptr += result; | |
1163 | } | |
1164 | ||
1165 | RETURN_VALUE("%d", bytes_read); | |
1166 | #endif | |
1167 | } | |
1168 | ||
1169 | enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, size_t count) | |
74510d4b | 1170 | { |
c33efc48 ML |
1171 | TRACE("%p, %p, %d", port, buf, count); |
1172 | ||
dec10e31 | 1173 | CHECK_OPEN_PORT(); |
74510d4b ML |
1174 | |
1175 | if (!buf) | |
c33efc48 | 1176 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1177 | |
ea667be7 ML |
1178 | DEBUG("Reading up to %d bytes from port %s", count, port->name); |
1179 | ||
74510d4b | 1180 | #ifdef _WIN32 |
e3dcf906 | 1181 | DWORD bytes_read; |
f92f1f0c | 1182 | |
e3dcf906 ML |
1183 | /* Set timeout. */ |
1184 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1185 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
1186 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1187 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1188 | ||
1189 | /* Do read. */ | |
1190 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1191 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1192 | |
1193 | /* Get number of bytes read. */ | |
1622ef60 ML |
1194 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1195 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 1196 | |
6f1186aa ML |
1197 | if (bytes_read > 0) { |
1198 | /* Start background operation for subsequent events. */ | |
1199 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
1200 | if (GetLastError() != ERROR_IO_PENDING) | |
1201 | RETURN_FAIL("WaitCommEvent() failed"); | |
1202 | } | |
1203 | } | |
1204 | ||
c33efc48 | 1205 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1206 | #else |
1207 | ssize_t bytes_read; | |
f92f1f0c | 1208 | |
74510d4b | 1209 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1210 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1211 | if (errno == EAGAIN) |
1212 | /* No bytes available. */ | |
33d5ff47 ML |
1213 | bytes_read = 0; |
1214 | else | |
1215 | /* This is an actual failure. */ | |
1216 | RETURN_FAIL("read() failed"); | |
1217 | } | |
c33efc48 | 1218 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1219 | #endif |
1220 | } | |
1221 | ||
3353c22f ML |
1222 | enum sp_return sp_input_waiting(struct sp_port *port) |
1223 | { | |
1224 | TRACE("%p", port); | |
1225 | ||
1226 | CHECK_OPEN_PORT(); | |
1227 | ||
1228 | DEBUG("Checking input bytes waiting on port %s", port->name); | |
1229 | ||
1230 | #ifdef _WIN32 | |
1231 | DWORD errors; | |
1232 | COMSTAT comstat; | |
1233 | ||
1234 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1235 | RETURN_FAIL("ClearCommError() failed"); |
3353c22f ML |
1236 | RETURN_VALUE("%d", comstat.cbInQue); |
1237 | #else | |
1238 | int bytes_waiting; | |
1239 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1240 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
1241 | RETURN_VALUE("%d", bytes_waiting); | |
1242 | #endif | |
1243 | } | |
1244 | ||
1245 | enum sp_return sp_output_waiting(struct sp_port *port) | |
1246 | { | |
1247 | TRACE("%p", port); | |
1248 | ||
1249 | CHECK_OPEN_PORT(); | |
1250 | ||
1251 | DEBUG("Checking output bytes waiting on port %s", port->name); | |
1252 | ||
1253 | #ifdef _WIN32 | |
1254 | DWORD errors; | |
1255 | COMSTAT comstat; | |
1256 | ||
1257 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1258 | RETURN_FAIL("ClearCommError() failed"); |
3353c22f ML |
1259 | RETURN_VALUE("%d", comstat.cbOutQue); |
1260 | #else | |
1261 | int bytes_waiting; | |
1262 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1263 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
1264 | RETURN_VALUE("%d", bytes_waiting); | |
1265 | #endif | |
1266 | } | |
1267 | ||
6f1186aa ML |
1268 | enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
1269 | { | |
1270 | struct sp_event_set *result; | |
1271 | ||
1272 | TRACE("%p", result_ptr); | |
1273 | ||
1274 | if (!result_ptr) | |
1275 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1276 | ||
1277 | *result_ptr = NULL; | |
1278 | ||
1279 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1280 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1281 | ||
1282 | memset(result, 0, sizeof(struct sp_event_set)); | |
1283 | ||
1284 | *result_ptr = result; | |
1285 | ||
1286 | RETURN_OK(); | |
1287 | } | |
1288 | ||
1289 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1290 | event_handle handle, enum sp_event mask) | |
1291 | { | |
1292 | void *new_handles; | |
1293 | enum sp_event *new_masks; | |
1294 | ||
1295 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1296 | ||
1297 | if (!(new_handles = realloc(event_set->handles, | |
1298 | sizeof(event_handle) * (event_set->count + 1)))) | |
1299 | RETURN_ERROR(SP_ERR_MEM, "handle array realloc() failed"); | |
1300 | ||
1301 | if (!(new_masks = realloc(event_set->masks, | |
1302 | sizeof(enum sp_event) * (event_set->count + 1)))) | |
1303 | RETURN_ERROR(SP_ERR_MEM, "mask array realloc() failed"); | |
1304 | ||
1305 | event_set->handles = new_handles; | |
1306 | event_set->masks = new_masks; | |
1307 | ||
1308 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1309 | event_set->masks[event_set->count] = mask; | |
1310 | ||
1311 | event_set->count++; | |
1312 | ||
1313 | RETURN_OK(); | |
1314 | } | |
1315 | ||
1316 | enum sp_return sp_add_port_events(struct sp_event_set *event_set, | |
1317 | const struct sp_port *port, enum sp_event mask) | |
1318 | { | |
1319 | TRACE("%p, %p, %d", event_set, port, mask); | |
1320 | ||
1321 | if (!event_set) | |
1322 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1323 | ||
1324 | if (!port) | |
1325 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1326 | ||
1327 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1328 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1329 | ||
1330 | if (!mask) | |
1331 | RETURN_OK(); | |
1332 | ||
1333 | #ifdef _WIN32 | |
1334 | enum sp_event handle_mask; | |
1335 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1336 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1337 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1338 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1339 | #else | |
1340 | TRY(add_handle(event_set, port->fd, mask)); | |
1341 | #endif | |
1342 | ||
1343 | RETURN_OK(); | |
1344 | } | |
1345 | ||
1346 | void sp_free_event_set(struct sp_event_set *event_set) | |
1347 | { | |
1348 | TRACE("%p", event_set); | |
1349 | ||
1350 | if (!event_set) { | |
1351 | DEBUG("Null event set"); | |
1352 | RETURN(); | |
1353 | } | |
1354 | ||
1355 | DEBUG("Freeing event set"); | |
1356 | ||
1357 | if (event_set->handles) | |
1358 | free(event_set->handles); | |
1359 | if (event_set->masks) | |
1360 | free(event_set->masks); | |
1361 | ||
1362 | free(event_set); | |
1363 | ||
1364 | RETURN(); | |
1365 | } | |
1366 | ||
1367 | enum sp_return sp_wait(struct sp_event_set *event_set, unsigned int timeout) | |
1368 | { | |
1369 | TRACE("%p, %d", event_set, timeout); | |
1370 | ||
1371 | if (!event_set) | |
1372 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1373 | ||
1374 | #ifdef _WIN32 | |
1375 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1376 | timeout ? timeout : INFINITE) == WAIT_FAILED) | |
1377 | RETURN_FAIL("WaitForMultipleObjects() failed"); | |
1378 | ||
1379 | RETURN_OK(); | |
1380 | #else | |
1381 | struct timeval start, delta, now, end = {0, 0}; | |
1382 | int result, timeout_remaining; | |
1383 | struct pollfd *pollfds; | |
1384 | unsigned int i; | |
1385 | ||
1386 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1387 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1388 | ||
1389 | for (i = 0; i < event_set->count; i++) { | |
1390 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1391 | pollfds[i].events = 0; | |
1392 | pollfds[i].revents = 0; | |
1393 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1394 | pollfds[i].events |= POLLIN; | |
1395 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1396 | pollfds[i].events |= POLLOUT; | |
1397 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1398 | pollfds[i].events |= POLLERR; | |
1399 | } | |
1400 | ||
1401 | if (timeout) { | |
1402 | /* Get time at start of operation. */ | |
1403 | gettimeofday(&start, NULL); | |
1404 | /* Define duration of timeout. */ | |
1405 | delta.tv_sec = timeout / 1000; | |
1406 | delta.tv_usec = (timeout % 1000) * 1000; | |
1407 | /* Calculate time at which we should give up. */ | |
1408 | timeradd(&start, &delta, &end); | |
1409 | } | |
1410 | ||
1411 | /* Loop until an event occurs. */ | |
1412 | while (1) | |
1413 | { | |
1414 | if (timeout) { | |
1415 | gettimeofday(&now, NULL); | |
1416 | if (timercmp(&now, &end, >)) { | |
1417 | DEBUG("wait timed out"); | |
1418 | break; | |
1419 | } | |
1420 | timersub(&end, &now, &delta); | |
1421 | timeout_remaining = delta.tv_sec * 1000 + delta.tv_usec / 1000; | |
1422 | } | |
1423 | ||
1424 | result = poll(pollfds, event_set->count, timeout ? timeout_remaining : -1); | |
1425 | ||
1426 | if (result < 0) { | |
1427 | if (errno == EINTR) { | |
1428 | DEBUG("poll() call was interrupted, repeating"); | |
1429 | continue; | |
1430 | } else { | |
1431 | free(pollfds); | |
1432 | RETURN_FAIL("poll() failed"); | |
1433 | } | |
1434 | } else if (result == 0) { | |
1435 | DEBUG("poll() timed out"); | |
1436 | break; | |
1437 | } else { | |
1438 | DEBUG("poll() completed"); | |
1439 | break; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | free(pollfds); | |
1444 | RETURN_OK(); | |
1445 | #endif | |
1446 | } | |
1447 | ||
5cea279a | 1448 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1449 | static enum sp_return get_baudrate(int fd, int *baudrate) |
1450 | { | |
1451 | void *data; | |
1452 | ||
c33efc48 ML |
1453 | TRACE("%d, %p", fd, baudrate); |
1454 | ||
ea667be7 ML |
1455 | DEBUG("Getting baud rate"); |
1456 | ||
7a6d2196 | 1457 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1458 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1459 | |
8d43110a ML |
1460 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1461 | free(data); | |
c33efc48 | 1462 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1463 | } |
7a6d2196 ML |
1464 | |
1465 | *baudrate = get_termios_speed(data); | |
1466 | ||
8d43110a ML |
1467 | free(data); |
1468 | ||
c33efc48 | 1469 | RETURN_OK(); |
7a6d2196 ML |
1470 | } |
1471 | ||
1472 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1473 | { | |
1474 | void *data; | |
1475 | ||
c33efc48 ML |
1476 | TRACE("%d, %d", fd, baudrate); |
1477 | ||
ea667be7 ML |
1478 | DEBUG("Getting baud rate"); |
1479 | ||
7a6d2196 | 1480 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1481 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1482 | |
8d43110a ML |
1483 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1484 | free(data); | |
c33efc48 | 1485 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1486 | } |
7a6d2196 | 1487 | |
ea667be7 ML |
1488 | DEBUG("Setting baud rate"); |
1489 | ||
7a6d2196 ML |
1490 | set_termios_speed(data, baudrate); |
1491 | ||
8d43110a ML |
1492 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1493 | free(data); | |
c33efc48 | 1494 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
1495 | } |
1496 | ||
1497 | free(data); | |
7a6d2196 | 1498 | |
c33efc48 | 1499 | RETURN_OK(); |
7a6d2196 | 1500 | } |
5cea279a | 1501 | #endif /* USE_TERMIOS_SPEED */ |
40978c2b ML |
1502 | |
1503 | #ifdef USE_TERMIOX | |
bd791fe1 | 1504 | static enum sp_return get_flow(int fd, struct port_data *data) |
40978c2b | 1505 | { |
bd791fe1 | 1506 | void *termx; |
40978c2b | 1507 | |
bd791fe1 | 1508 | TRACE("%d, %p", fd, data); |
c33efc48 | 1509 | |
ea667be7 ML |
1510 | DEBUG("Getting advanced flow control"); |
1511 | ||
bd791fe1 | 1512 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1513 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1514 | |
bd791fe1 ML |
1515 | if (ioctl(fd, TCGETX, termx) < 0) { |
1516 | free(termx); | |
c33efc48 | 1517 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1518 | } |
40978c2b | 1519 | |
bd791fe1 ML |
1520 | get_termiox_flow(termx, &data->rts_flow, &data->cts_flow, |
1521 | &data->dtr_flow, &data->dsr_flow); | |
40978c2b | 1522 | |
bd791fe1 | 1523 | free(termx); |
8d43110a | 1524 | |
c33efc48 | 1525 | RETURN_OK(); |
40978c2b ML |
1526 | } |
1527 | ||
bd791fe1 | 1528 | static enum sp_return set_flow(int fd, struct port_data *data) |
40978c2b | 1529 | { |
bd791fe1 | 1530 | void *termx; |
40978c2b | 1531 | |
bd791fe1 | 1532 | TRACE("%d, %p", fd, data); |
c33efc48 | 1533 | |
ea667be7 ML |
1534 | DEBUG("Getting advanced flow control"); |
1535 | ||
bd791fe1 | 1536 | if (!(termx = malloc(get_termiox_size()))) |
c33efc48 | 1537 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1538 | |
bd791fe1 ML |
1539 | if (ioctl(fd, TCGETX, termx) < 0) { |
1540 | free(termx); | |
c33efc48 | 1541 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1542 | } |
40978c2b | 1543 | |
ea667be7 ML |
1544 | DEBUG("Setting advanced flow control"); |
1545 | ||
bd791fe1 ML |
1546 | set_termiox_flow(termx, data->rts_flow, data->cts_flow, |
1547 | data->dtr_flow, data->dsr_flow); | |
40978c2b | 1548 | |
bd791fe1 ML |
1549 | if (ioctl(fd, TCSETX, termx) < 0) { |
1550 | free(termx); | |
c33efc48 | 1551 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
1552 | } |
1553 | ||
bd791fe1 | 1554 | free(termx); |
40978c2b | 1555 | |
c33efc48 | 1556 | RETURN_OK(); |
40978c2b ML |
1557 | } |
1558 | #endif /* USE_TERMIOX */ | |
7a6d2196 | 1559 | |
eb6ed20f ML |
1560 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1561 | struct sp_port_config *config) | |
8094e4a0 | 1562 | { |
da2748bf | 1563 | unsigned int i; |
cbf628c7 | 1564 | |
c33efc48 ML |
1565 | TRACE("%p, %p, %p", port, data, config); |
1566 | ||
ea667be7 ML |
1567 | DEBUG("Getting configuration for port %s", port->name); |
1568 | ||
8094e4a0 | 1569 | #ifdef _WIN32 |
e33ab9aa | 1570 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1571 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1572 | |
067417af | 1573 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1574 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1575 | config->baudrate = std_baudrates[i].value; |
1576 | break; | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | if (i == NUM_STD_BAUDRATES) | |
1581 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1582 | config->baudrate = data->dcb.BaudRate; |
067417af | 1583 | |
e33ab9aa | 1584 | config->bits = data->dcb.ByteSize; |
067417af | 1585 | |
e33ab9aa ML |
1586 | if (data->dcb.fParity) |
1587 | switch (data->dcb.Parity) { | |
067417af ML |
1588 | case NOPARITY: |
1589 | config->parity = SP_PARITY_NONE; | |
1590 | break; | |
e432ce60 ML |
1591 | case ODDPARITY: |
1592 | config->parity = SP_PARITY_ODD; | |
1593 | break; | |
067417af ML |
1594 | case EVENPARITY: |
1595 | config->parity = SP_PARITY_EVEN; | |
1596 | break; | |
e432ce60 ML |
1597 | case MARKPARITY: |
1598 | config->parity = SP_PARITY_MARK; | |
1599 | break; | |
1600 | case SPACEPARITY: | |
1601 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1602 | break; |
1603 | default: | |
1604 | config->parity = -1; | |
1605 | } | |
1606 | else | |
1607 | config->parity = SP_PARITY_NONE; | |
1608 | ||
e33ab9aa | 1609 | switch (data->dcb.StopBits) { |
067417af ML |
1610 | case ONESTOPBIT: |
1611 | config->stopbits = 1; | |
1612 | break; | |
1613 | case TWOSTOPBITS: | |
1614 | config->stopbits = 2; | |
1615 | break; | |
1616 | default: | |
1617 | config->stopbits = -1; | |
1618 | } | |
1619 | ||
e33ab9aa | 1620 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1621 | case RTS_CONTROL_DISABLE: |
1622 | config->rts = SP_RTS_OFF; | |
1623 | break; | |
1624 | case RTS_CONTROL_ENABLE: | |
1625 | config->rts = SP_RTS_ON; | |
1626 | break; | |
1627 | case RTS_CONTROL_HANDSHAKE: | |
1628 | config->rts = SP_RTS_FLOW_CONTROL; | |
1629 | break; | |
1630 | default: | |
1631 | config->rts = -1; | |
067417af ML |
1632 | } |
1633 | ||
e33ab9aa | 1634 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1635 | |
e33ab9aa | 1636 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1637 | case DTR_CONTROL_DISABLE: |
1638 | config->dtr = SP_DTR_OFF; | |
1639 | break; | |
1640 | case DTR_CONTROL_ENABLE: | |
1641 | config->dtr = SP_DTR_ON; | |
1642 | break; | |
1643 | case DTR_CONTROL_HANDSHAKE: | |
1644 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1645 | break; | |
1646 | default: | |
1647 | config->dtr = -1; | |
067417af ML |
1648 | } |
1649 | ||
e33ab9aa ML |
1650 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1651 | ||
c6754b45 ML |
1652 | if (data->dcb.fInX) { |
1653 | if (data->dcb.fOutX) | |
1654 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1655 | else | |
1656 | config->xon_xoff = SP_XONXOFF_IN; | |
1657 | } else { | |
1658 | if (data->dcb.fOutX) | |
1659 | config->xon_xoff = SP_XONXOFF_OUT; | |
1660 | else | |
1661 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1662 | } | |
1663 | ||
e33ab9aa ML |
1664 | #else // !_WIN32 |
1665 | ||
1666 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1667 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1668 | |
1669 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1670 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1671 | |
1672 | #ifdef USE_TERMIOX | |
bd791fe1 | 1673 | int ret = get_flow(port->fd, data); |
68ec29db ML |
1674 | |
1675 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1676 | data->termiox_supported = 0; | |
1677 | else if (ret < 0) | |
c33efc48 | 1678 | RETURN_CODEVAL(ret); |
68ec29db ML |
1679 | else |
1680 | data->termiox_supported = 1; | |
1681 | #else | |
1682 | data->termiox_supported = 0; | |
40978c2b ML |
1683 | #endif |
1684 | ||
067417af | 1685 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1686 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1687 | config->baudrate = std_baudrates[i].value; |
1688 | break; | |
1689 | } | |
1690 | } | |
1691 | ||
31b3a8f5 MH |
1692 | if (i == NUM_STD_BAUDRATES) { |
1693 | #ifdef __APPLE__ | |
1694 | config->baudrate = (int)data->term.c_ispeed; | |
5cea279a | 1695 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1696 | TRY(get_baudrate(port->fd, &config->baudrate)); |
31b3a8f5 | 1697 | #else |
067417af | 1698 | config->baudrate = -1; |
31b3a8f5 MH |
1699 | #endif |
1700 | } | |
067417af | 1701 | |
e33ab9aa | 1702 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1703 | case CS8: |
1704 | config->bits = 8; | |
1705 | break; | |
1706 | case CS7: | |
1707 | config->bits = 7; | |
1708 | break; | |
1709 | case CS6: | |
1710 | config->bits = 6; | |
1711 | break; | |
1712 | case CS5: | |
1713 | config->bits = 5; | |
1714 | break; | |
1715 | default: | |
1716 | config->bits = -1; | |
1717 | } | |
1718 | ||
e33ab9aa | 1719 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1720 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1721 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1722 | config->parity = -1; |
c3e05092 | 1723 | #ifdef CMSPAR |
e432ce60 ML |
1724 | else if (data->term.c_cflag & CMSPAR) |
1725 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1726 | #endif |
067417af | 1727 | else |
e33ab9aa | 1728 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1729 | |
e33ab9aa | 1730 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1731 | |
e33ab9aa | 1732 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1733 | config->rts = SP_RTS_FLOW_CONTROL; |
1734 | config->cts = SP_CTS_FLOW_CONTROL; | |
1735 | } else { | |
bd791fe1 | 1736 | if (data->termiox_supported && data->rts_flow) |
40978c2b ML |
1737 | config->rts = SP_RTS_FLOW_CONTROL; |
1738 | else | |
1739 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1740 | ||
bd791fe1 | 1741 | config->cts = (data->termiox_supported && data->cts_flow) ? |
68ec29db | 1742 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af ML |
1743 | } |
1744 | ||
bd791fe1 | 1745 | if (data->termiox_supported && data->dtr_flow) |
40978c2b ML |
1746 | config->dtr = SP_DTR_FLOW_CONTROL; |
1747 | else | |
1748 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1749 | ||
bd791fe1 | 1750 | config->dsr = (data->termiox_supported && data->dsr_flow) ? |
68ec29db | 1751 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
705bdc69 | 1752 | |
e29b93a5 ML |
1753 | if (data->term.c_iflag & IXOFF) { |
1754 | if (data->term.c_iflag & IXON) | |
1755 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1756 | else | |
1757 | config->xon_xoff = SP_XONXOFF_IN; | |
1758 | } else { | |
1759 | if (data->term.c_iflag & IXON) | |
1760 | config->xon_xoff = SP_XONXOFF_OUT; | |
1761 | else | |
1762 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1763 | } | |
067417af ML |
1764 | #endif |
1765 | ||
c33efc48 | 1766 | RETURN_OK(); |
067417af ML |
1767 | } |
1768 | ||
7a6d2196 | 1769 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1770 | const struct sp_port_config *config) |
18fc2dd1 | 1771 | { |
e33ab9aa | 1772 | unsigned int i; |
31b3a8f5 MH |
1773 | #ifdef __APPLE__ |
1774 | BAUD_TYPE baud_nonstd; | |
1775 | ||
1776 | baud_nonstd = B0; | |
1777 | #endif | |
5cea279a | 1778 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
1779 | int baud_nonstd = 0; |
1780 | #endif | |
18fc2dd1 | 1781 | |
c33efc48 ML |
1782 | TRACE("%p, %p, %p", port, data, config); |
1783 | ||
ea667be7 ML |
1784 | DEBUG("Setting configuration for port %s", port->name); |
1785 | ||
e33ab9aa | 1786 | #ifdef _WIN32 |
eac329d2 | 1787 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1788 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1789 | if (config->baudrate == std_baudrates[i].value) { | |
1790 | data->dcb.BaudRate = std_baudrates[i].index; | |
1791 | break; | |
1792 | } | |
1793 | } | |
18fc2dd1 | 1794 | |
e33ab9aa ML |
1795 | if (i == NUM_STD_BAUDRATES) |
1796 | data->dcb.BaudRate = config->baudrate; | |
1797 | } | |
18fc2dd1 | 1798 | |
e33ab9aa ML |
1799 | if (config->bits >= 0) |
1800 | data->dcb.ByteSize = config->bits; | |
1801 | ||
1802 | if (config->parity >= 0) { | |
1803 | switch (config->parity) { | |
e33ab9aa ML |
1804 | case SP_PARITY_NONE: |
1805 | data->dcb.Parity = NOPARITY; | |
1806 | break; | |
e432ce60 ML |
1807 | case SP_PARITY_ODD: |
1808 | data->dcb.Parity = ODDPARITY; | |
1809 | break; | |
e33ab9aa ML |
1810 | case SP_PARITY_EVEN: |
1811 | data->dcb.Parity = EVENPARITY; | |
1812 | break; | |
e432ce60 ML |
1813 | case SP_PARITY_MARK: |
1814 | data->dcb.Parity = MARKPARITY; | |
1815 | break; | |
1816 | case SP_PARITY_SPACE: | |
1817 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1818 | break; |
1819 | default: | |
c33efc48 | 1820 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1821 | } |
18fc2dd1 ML |
1822 | } |
1823 | ||
e33ab9aa ML |
1824 | if (config->stopbits >= 0) { |
1825 | switch (config->stopbits) { | |
1826 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1827 | case 1: | |
1828 | data->dcb.StopBits = ONESTOPBIT; | |
1829 | break; | |
1830 | case 2: | |
1831 | data->dcb.StopBits = TWOSTOPBITS; | |
1832 | break; | |
1833 | default: | |
c33efc48 | 1834 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1835 | } |
1836 | } | |
1837 | ||
1838 | if (config->rts >= 0) { | |
1839 | switch (config->rts) { | |
1840 | case SP_RTS_OFF: | |
1841 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1842 | break; | |
1843 | case SP_RTS_ON: | |
1844 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1845 | break; | |
1846 | case SP_RTS_FLOW_CONTROL: | |
1847 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1848 | break; | |
1849 | default: | |
c33efc48 | 1850 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1851 | } |
1852 | } | |
1853 | ||
1854 | if (config->cts >= 0) { | |
1855 | switch (config->cts) { | |
1856 | case SP_CTS_IGNORE: | |
1857 | data->dcb.fOutxCtsFlow = FALSE; | |
1858 | break; | |
1859 | case SP_CTS_FLOW_CONTROL: | |
1860 | data->dcb.fOutxCtsFlow = TRUE; | |
1861 | break; | |
1862 | default: | |
c33efc48 | 1863 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1864 | } |
1865 | } | |
1866 | ||
1867 | if (config->dtr >= 0) { | |
1868 | switch (config->dtr) { | |
1869 | case SP_DTR_OFF: | |
1870 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1871 | break; | |
1872 | case SP_DTR_ON: | |
1873 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1874 | break; | |
1875 | case SP_DTR_FLOW_CONTROL: | |
1876 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1877 | break; | |
1878 | default: | |
c33efc48 | 1879 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1880 | } |
1881 | } | |
1882 | ||
1883 | if (config->dsr >= 0) { | |
1884 | switch (config->dsr) { | |
1885 | case SP_DSR_IGNORE: | |
1886 | data->dcb.fOutxDsrFlow = FALSE; | |
1887 | break; | |
1888 | case SP_DSR_FLOW_CONTROL: | |
1889 | data->dcb.fOutxDsrFlow = TRUE; | |
1890 | break; | |
1891 | default: | |
c33efc48 | 1892 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1893 | } |
18fc2dd1 ML |
1894 | } |
1895 | ||
e33ab9aa ML |
1896 | if (config->xon_xoff >= 0) { |
1897 | switch (config->xon_xoff) { | |
1898 | case SP_XONXOFF_DISABLED: | |
1899 | data->dcb.fInX = FALSE; | |
1900 | data->dcb.fOutX = FALSE; | |
1901 | break; | |
1902 | case SP_XONXOFF_IN: | |
1903 | data->dcb.fInX = TRUE; | |
1904 | data->dcb.fOutX = FALSE; | |
1905 | break; | |
1906 | case SP_XONXOFF_OUT: | |
1907 | data->dcb.fInX = FALSE; | |
1908 | data->dcb.fOutX = TRUE; | |
1909 | break; | |
1910 | case SP_XONXOFF_INOUT: | |
1911 | data->dcb.fInX = TRUE; | |
1912 | data->dcb.fOutX = TRUE; | |
1913 | break; | |
1914 | default: | |
c33efc48 | 1915 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1916 | } |
1917 | } | |
1918 | ||
1919 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1920 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1921 | |
31b3a8f5 | 1922 | #else /* !_WIN32 */ |
e33ab9aa | 1923 | |
7a6d2196 ML |
1924 | int controlbits; |
1925 | ||
eac329d2 | 1926 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1927 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1928 | if (config->baudrate == std_baudrates[i].value) { | |
1929 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1930 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1931 | |
1932 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1933 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1934 | break; |
1935 | } | |
1936 | } | |
1937 | ||
31b3a8f5 MH |
1938 | /* Non-standard baud rate */ |
1939 | if (i == NUM_STD_BAUDRATES) { | |
1940 | #ifdef __APPLE__ | |
24abdb68 | 1941 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1942 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1943 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1944 | baud_nonstd = config->baudrate; |
5cea279a | 1945 | #elif defined(USE_TERMIOS_SPEED) |
7a6d2196 | 1946 | baud_nonstd = 1; |
31b3a8f5 | 1947 | #else |
c33efc48 | 1948 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1949 | #endif |
1950 | } | |
e33ab9aa ML |
1951 | } |
1952 | ||
1953 | if (config->bits >= 0) { | |
1954 | data->term.c_cflag &= ~CSIZE; | |
1955 | switch (config->bits) { | |
1956 | case 8: | |
1957 | data->term.c_cflag |= CS8; | |
1958 | break; | |
1959 | case 7: | |
1960 | data->term.c_cflag |= CS7; | |
1961 | break; | |
1962 | case 6: | |
1963 | data->term.c_cflag |= CS6; | |
1964 | break; | |
23922313 UH |
1965 | case 5: |
1966 | data->term.c_cflag |= CS5; | |
1967 | break; | |
e33ab9aa | 1968 | default: |
c33efc48 | 1969 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1970 | } |
1971 | } | |
1972 | ||
1973 | if (config->parity >= 0) { | |
1974 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1975 | data->term.c_cflag &= ~(PARENB | PARODD); |
1976 | #ifdef CMSPAR | |
1977 | data->term.c_cflag &= ~CMSPAR; | |
1978 | #endif | |
e33ab9aa ML |
1979 | switch (config->parity) { |
1980 | case SP_PARITY_NONE: | |
1981 | data->term.c_iflag |= IGNPAR; | |
1982 | break; | |
1983 | case SP_PARITY_EVEN: | |
1984 | data->term.c_cflag |= PARENB; | |
1985 | break; | |
1986 | case SP_PARITY_ODD: | |
1987 | data->term.c_cflag |= PARENB | PARODD; | |
1988 | break; | |
afb518f0 | 1989 | #ifdef CMSPAR |
e432ce60 | 1990 | case SP_PARITY_MARK: |
c3e05092 | 1991 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 1992 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
1993 | break; |
1994 | case SP_PARITY_SPACE: | |
c3e05092 | 1995 | data->term.c_cflag |= PARENB; |
c3e05092 | 1996 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 1997 | break; |
afb518f0 ML |
1998 | #else |
1999 | case SP_PARITY_MARK: | |
2000 | case SP_PARITY_SPACE: | |
2001 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2002 | #endif | |
e33ab9aa | 2003 | default: |
c33efc48 | 2004 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2005 | } |
2006 | } | |
2007 | ||
2008 | if (config->stopbits >= 0) { | |
2009 | data->term.c_cflag &= ~CSTOPB; | |
2010 | switch (config->stopbits) { | |
2011 | case 1: | |
2012 | data->term.c_cflag &= ~CSTOPB; | |
2013 | break; | |
2014 | case 2: | |
2015 | data->term.c_cflag |= CSTOPB; | |
2016 | break; | |
2017 | default: | |
c33efc48 | 2018 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2019 | } |
2020 | } | |
2021 | ||
eac329d2 | 2022 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db | 2023 | if (data->termiox_supported) { |
bd791fe1 | 2024 | data->rts_flow = data->cts_flow = 0; |
68ec29db ML |
2025 | switch (config->rts) { |
2026 | case SP_RTS_OFF: | |
2027 | case SP_RTS_ON: | |
2028 | controlbits = TIOCM_RTS; | |
2029 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2030 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2031 | break; |
2032 | case SP_RTS_FLOW_CONTROL: | |
bd791fe1 | 2033 | data->rts_flow = 1; |
68ec29db ML |
2034 | break; |
2035 | default: | |
2036 | break; | |
e33ab9aa | 2037 | } |
68ec29db | 2038 | if (config->cts == SP_CTS_FLOW_CONTROL) |
bd791fe1 | 2039 | data->cts_flow = 1; |
e33ab9aa | 2040 | |
bd791fe1 | 2041 | if (data->rts_flow && data->cts_flow) |
e33ab9aa | 2042 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2043 | else |
2044 | data->term.c_iflag &= ~CRTSCTS; | |
2045 | } else { | |
2046 | /* Asymmetric use of RTS/CTS not supported. */ | |
2047 | if (data->term.c_iflag & CRTSCTS) { | |
2048 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2049 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2050 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2051 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2052 | } |
2053 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2054 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2055 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2056 | } |
e33ab9aa | 2057 | } else { |
68ec29db ML |
2058 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2059 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2060 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2061 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2062 | } |
2063 | ||
2064 | if (config->rts >= 0) { | |
2065 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2066 | data->term.c_iflag |= CRTSCTS; | |
2067 | } else { | |
2068 | controlbits = TIOCM_RTS; | |
2069 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2070 | &controlbits) < 0) | |
c33efc48 | 2071 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2072 | } |
e33ab9aa ML |
2073 | } |
2074 | } | |
2075 | } | |
2076 | ||
eac329d2 | 2077 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db | 2078 | if (data->termiox_supported) { |
bd791fe1 | 2079 | data->dtr_flow = data->dsr_flow = 0; |
68ec29db ML |
2080 | switch (config->dtr) { |
2081 | case SP_DTR_OFF: | |
2082 | case SP_DTR_ON: | |
2083 | controlbits = TIOCM_DTR; | |
2084 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2085 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2086 | break; |
2087 | case SP_DTR_FLOW_CONTROL: | |
bd791fe1 | 2088 | data->dtr_flow = 1; |
68ec29db ML |
2089 | break; |
2090 | default: | |
2091 | break; | |
2092 | } | |
2093 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
bd791fe1 | 2094 | data->dsr_flow = 1; |
68ec29db ML |
2095 | } else { |
2096 | /* DTR/DSR flow control not supported. */ | |
2097 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2098 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2099 | |
68ec29db ML |
2100 | if (config->dtr >= 0) { |
2101 | controlbits = TIOCM_DTR; | |
2102 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2103 | &controlbits) < 0) | |
c33efc48 | 2104 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2105 | } |
e33ab9aa ML |
2106 | } |
2107 | } | |
2108 | ||
2109 | if (config->xon_xoff >= 0) { | |
2110 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2111 | switch (config->xon_xoff) { | |
2112 | case SP_XONXOFF_DISABLED: | |
2113 | break; | |
2114 | case SP_XONXOFF_IN: | |
2115 | data->term.c_iflag |= IXOFF; | |
2116 | break; | |
2117 | case SP_XONXOFF_OUT: | |
2118 | data->term.c_iflag |= IXON | IXANY; | |
2119 | break; | |
2120 | case SP_XONXOFF_INOUT: | |
2121 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2122 | break; | |
2123 | default: | |
c33efc48 | 2124 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2125 | } |
2126 | } | |
2127 | ||
3f5c06d0 | 2128 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2129 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2130 | |
2131 | #ifdef __APPLE__ | |
2132 | if (baud_nonstd != B0) { | |
2133 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2134 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
2135 | /* Set baud rates in data->term to correct, but incompatible |
2136 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
2137 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 2138 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2139 | } |
7a6d2196 | 2140 | #elif defined(__linux__) |
5cea279a | 2141 | #ifdef USE_TERMIOS_SPEED |
7a6d2196 ML |
2142 | if (baud_nonstd) |
2143 | TRY(set_baudrate(port->fd, config->baudrate)); | |
5cea279a | 2144 | #endif |
40978c2b | 2145 | #ifdef USE_TERMIOX |
68ec29db | 2146 | if (data->termiox_supported) |
bd791fe1 | 2147 | TRY(set_flow(port->fd, data)); |
40978c2b | 2148 | #endif |
7a6d2196 | 2149 | #endif |
31b3a8f5 MH |
2150 | |
2151 | #endif /* !_WIN32 */ | |
e33ab9aa | 2152 | |
c33efc48 | 2153 | RETURN_OK(); |
e33ab9aa ML |
2154 | } |
2155 | ||
9b1502ef ML |
2156 | enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
2157 | { | |
59131d60 | 2158 | struct sp_port_config *config; |
9b1502ef | 2159 | |
00d8c56d UH |
2160 | TRACE("%p", config_ptr); |
2161 | ||
9b1502ef ML |
2162 | if (!config_ptr) |
2163 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2164 | ||
59131d60 ML |
2165 | *config_ptr = NULL; |
2166 | ||
2167 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
9b1502ef ML |
2168 | RETURN_ERROR(SP_ERR_MEM, "config malloc failed"); |
2169 | ||
59131d60 ML |
2170 | config->baudrate = -1; |
2171 | config->bits = -1; | |
2172 | config->parity = -1; | |
2173 | config->stopbits = -1; | |
2174 | config->rts = -1; | |
2175 | config->cts = -1; | |
2176 | config->dtr = -1; | |
2177 | config->dsr = -1; | |
2178 | ||
2179 | *config_ptr = config; | |
2180 | ||
9b1502ef ML |
2181 | RETURN_OK(); |
2182 | } | |
2183 | ||
2184 | void sp_free_config(struct sp_port_config *config) | |
2185 | { | |
2186 | TRACE("%p", config); | |
2187 | ||
2188 | if (!config) | |
2189 | DEBUG("Null config"); | |
2190 | else | |
2191 | free(config); | |
2192 | ||
2193 | RETURN(); | |
2194 | } | |
2195 | ||
70cd37de ML |
2196 | enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config) |
2197 | { | |
2198 | struct port_data data; | |
2199 | ||
2200 | TRACE("%p, %p", port, config); | |
2201 | ||
2202 | CHECK_OPEN_PORT(); | |
2203 | ||
2204 | if (!config) | |
9b1502ef | 2205 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2206 | |
2207 | TRY(get_config(port, &data, config)); | |
2208 | ||
2209 | RETURN_OK(); | |
2210 | } | |
2211 | ||
eb6ed20f | 2212 | enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config) |
e33ab9aa | 2213 | { |
8f189c4c | 2214 | struct port_data data; |
e33ab9aa ML |
2215 | struct sp_port_config prev_config; |
2216 | ||
c33efc48 ML |
2217 | TRACE("%p, %p", port, config); |
2218 | ||
dec10e31 | 2219 | CHECK_OPEN_PORT(); |
823690ae ML |
2220 | |
2221 | if (!config) | |
c33efc48 | 2222 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2223 | |
e33ab9aa ML |
2224 | TRY(get_config(port, &data, &prev_config)); |
2225 | TRY(set_config(port, &data, config)); | |
74510d4b | 2226 | |
c33efc48 | 2227 | RETURN_OK(); |
74510d4b ML |
2228 | } |
2229 | ||
9b1502ef ML |
2230 | #define CREATE_ACCESSORS(x, type) \ |
2231 | enum sp_return sp_set_##x(struct sp_port *port, type x) { \ | |
8f189c4c | 2232 | struct port_data data; \ |
e33ab9aa | 2233 | struct sp_port_config config; \ |
c33efc48 | 2234 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2235 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2236 | TRY(get_config(port, &data, &config)); \ |
2237 | config.x = x; \ | |
2238 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2239 | RETURN_OK(); \ |
9b1502ef ML |
2240 | } \ |
2241 | enum sp_return sp_get_config_##x(const struct sp_port_config *config, type *x) { \ | |
00d8c56d | 2242 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2243 | if (!config) \ |
2244 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2245 | *x = config->x; \ | |
2246 | RETURN_OK(); \ | |
2247 | } \ | |
2248 | enum sp_return sp_set_config_##x(struct sp_port_config *config, type x) { \ | |
2249 | TRACE("%p, %d", config, x); \ | |
2250 | if (!config) \ | |
2251 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2252 | config->x = x; \ | |
2253 | RETURN_OK(); \ | |
9069c2fb ML |
2254 | } |
2255 | ||
9b1502ef ML |
2256 | CREATE_ACCESSORS(baudrate, int) |
2257 | CREATE_ACCESSORS(bits, int) | |
2258 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2259 | CREATE_ACCESSORS(stopbits, int) | |
2260 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2261 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2262 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2263 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2264 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2265 | ||
2266 | enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2267 | { |
9b1502ef ML |
2268 | if (!config) |
2269 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2270 | |
2271 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2272 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2273 | |
e33ab9aa | 2274 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2275 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2276 | else |
9b1502ef | 2277 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2278 | |
2279 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2280 | config->rts = SP_RTS_FLOW_CONTROL; |
2281 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2282 | } else { |
9b1502ef ML |
2283 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2284 | config->rts = SP_RTS_ON; | |
2285 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2286 | } |
2287 | ||
2288 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2289 | config->dtr = SP_DTR_FLOW_CONTROL; |
2290 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2291 | } else { |
9b1502ef ML |
2292 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2293 | config->dtr = SP_DTR_ON; | |
2294 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2295 | } |
2296 | ||
9b1502ef ML |
2297 | RETURN_OK(); |
2298 | } | |
2299 | ||
2300 | enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol) | |
2301 | { | |
2302 | struct port_data data; | |
2303 | struct sp_port_config config; | |
2304 | ||
2305 | TRACE("%p, %d", port, flowcontrol); | |
2306 | ||
2307 | CHECK_OPEN_PORT(); | |
2308 | ||
2309 | TRY(get_config(port, &data, &config)); | |
2310 | ||
2311 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2312 | ||
e33ab9aa ML |
2313 | TRY(set_config(port, &data, &config)); |
2314 | ||
c33efc48 | 2315 | RETURN_OK(); |
e33ab9aa ML |
2316 | } |
2317 | ||
8cf7c697 ML |
2318 | enum sp_return sp_get_signals(struct sp_port *port, enum sp_signal *signals) |
2319 | { | |
c33efc48 ML |
2320 | TRACE("%p, %p", port, signals); |
2321 | ||
dec10e31 | 2322 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2323 | |
2324 | if (!signals) | |
c33efc48 | 2325 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2326 | |
ea667be7 ML |
2327 | DEBUG("Getting control signals for port %s", port->name); |
2328 | ||
8cf7c697 ML |
2329 | *signals = 0; |
2330 | #ifdef _WIN32 | |
2331 | DWORD bits; | |
2332 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2333 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2334 | if (bits & MS_CTS_ON) |
2335 | *signals |= SP_SIG_CTS; | |
2336 | if (bits & MS_DSR_ON) | |
2337 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2338 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2339 | *signals |= SP_SIG_DCD; |
2340 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2341 | *signals |= SP_SIG_RI; |
2342 | #else | |
2343 | int bits; | |
2344 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2345 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2346 | if (bits & TIOCM_CTS) |
2347 | *signals |= SP_SIG_CTS; | |
2348 | if (bits & TIOCM_DSR) | |
2349 | *signals |= SP_SIG_DSR; | |
2350 | if (bits & TIOCM_CAR) | |
2351 | *signals |= SP_SIG_DCD; | |
2352 | if (bits & TIOCM_RNG) | |
2353 | *signals |= SP_SIG_RI; | |
2354 | #endif | |
c33efc48 | 2355 | RETURN_OK(); |
8cf7c697 ML |
2356 | } |
2357 | ||
90cc3ee6 ML |
2358 | enum sp_return sp_start_break(struct sp_port *port) |
2359 | { | |
c33efc48 ML |
2360 | TRACE("%p", port); |
2361 | ||
dec10e31 | 2362 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2363 | #ifdef _WIN32 |
2364 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2365 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2366 | #else |
2367 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2368 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2369 | #endif |
2370 | ||
c33efc48 | 2371 | RETURN_OK(); |
90cc3ee6 ML |
2372 | } |
2373 | ||
2374 | enum sp_return sp_end_break(struct sp_port *port) | |
2375 | { | |
c33efc48 ML |
2376 | TRACE("%p", port); |
2377 | ||
dec10e31 | 2378 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2379 | #ifdef _WIN32 |
2380 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2381 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2382 | #else |
2383 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2384 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2385 | #endif |
2386 | ||
c33efc48 | 2387 | RETURN_OK(); |
90cc3ee6 ML |
2388 | } |
2389 | ||
74510d4b ML |
2390 | int sp_last_error_code(void) |
2391 | { | |
c33efc48 | 2392 | TRACE(""); |
74510d4b | 2393 | #ifdef _WIN32 |
c33efc48 | 2394 | RETURN_VALUE("%d", GetLastError()); |
74510d4b | 2395 | #else |
c33efc48 | 2396 | RETURN_VALUE("%d", errno); |
74510d4b ML |
2397 | #endif |
2398 | } | |
2399 | ||
74510d4b ML |
2400 | char *sp_last_error_message(void) |
2401 | { | |
c33efc48 ML |
2402 | TRACE(""); |
2403 | ||
74510d4b ML |
2404 | #ifdef _WIN32 |
2405 | LPVOID message; | |
2406 | DWORD error = GetLastError(); | |
2407 | ||
2408 | FormatMessage( | |
2409 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2410 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2411 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2412 | NULL, | |
2413 | error, | |
2414 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2415 | (LPTSTR) &message, | |
2416 | 0, NULL ); | |
2417 | ||
c33efc48 | 2418 | RETURN_VALUE("%s", message); |
74510d4b | 2419 | #else |
c33efc48 | 2420 | RETURN_VALUE("%s", strerror(errno)); |
74510d4b ML |
2421 | #endif |
2422 | } | |
2423 | ||
74510d4b ML |
2424 | void sp_free_error_message(char *message) |
2425 | { | |
c33efc48 ML |
2426 | TRACE("%s", message); |
2427 | ||
74510d4b ML |
2428 | #ifdef _WIN32 |
2429 | LocalFree(message); | |
64eec30d ML |
2430 | #else |
2431 | (void)message; | |
74510d4b | 2432 | #endif |
c33efc48 ML |
2433 | |
2434 | RETURN(); | |
74510d4b | 2435 | } |
863b35e6 ML |
2436 | |
2437 | void sp_set_debug_handler(void (*handler)(const char *format, ...)) | |
2438 | { | |
c33efc48 ML |
2439 | TRACE("%p", handler); |
2440 | ||
863b35e6 | 2441 | sp_debug_handler = handler; |
c33efc48 ML |
2442 | |
2443 | RETURN(); | |
863b35e6 ML |
2444 | } |
2445 | ||
2446 | void sp_default_debug_handler(const char *format, ...) | |
2447 | { | |
2448 | va_list args; | |
2449 | va_start(args, format); | |
2450 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2451 | fputs("sp: ", stderr); |
863b35e6 ML |
2452 | vfprintf(stderr, format, args); |
2453 | } | |
2454 | va_end(args); | |
2455 | } | |
524b0e14 UH |
2456 | |
2457 | int sp_get_major_package_version(void) | |
2458 | { | |
2459 | return SP_PACKAGE_VERSION_MAJOR; | |
2460 | } | |
2461 | ||
2462 | int sp_get_minor_package_version(void) | |
2463 | { | |
2464 | return SP_PACKAGE_VERSION_MINOR; | |
2465 | } | |
2466 | ||
2467 | int sp_get_micro_package_version(void) | |
2468 | { | |
2469 | return SP_PACKAGE_VERSION_MICRO; | |
2470 | } | |
2471 | ||
2472 | const char *sp_get_package_version_string(void) | |
2473 | { | |
2474 | return SP_PACKAGE_VERSION_STRING; | |
2475 | } | |
2476 | ||
2477 | int sp_get_current_lib_version(void) | |
2478 | { | |
2479 | return SP_LIB_VERSION_CURRENT; | |
2480 | } | |
2481 | ||
2482 | int sp_get_revision_lib_version(void) | |
2483 | { | |
2484 | return SP_LIB_VERSION_REVISION; | |
2485 | } | |
2486 | ||
2487 | int sp_get_age_lib_version(void) | |
2488 | { | |
2489 | return SP_LIB_VERSION_AGE; | |
2490 | } | |
2491 | ||
2492 | const char *sp_get_lib_version_string(void) | |
2493 | { | |
2494 | return SP_LIB_VERSION_STRING; | |
2495 | } | |
2496 | ||
2497 | /** @} */ |