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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> |
767c5ba8 | 35 | #include <stdio.h> |
74510d4b | 36 | #else |
8fbf876d | 37 | #include <limits.h> |
74510d4b ML |
38 | #include <termios.h> |
39 | #include <sys/ioctl.h> | |
e3dcf906 ML |
40 | #include <sys/time.h> |
41 | #include <limits.h> | |
6f1186aa | 42 | #include <poll.h> |
74510d4b | 43 | #endif |
3b63f34d | 44 | #ifdef __APPLE__ |
1ebf4347 ML |
45 | #include <IOKit/IOKitLib.h> |
46 | #include <IOKit/serial/IOSerialKeys.h> | |
31b3a8f5 | 47 | #include <IOKit/serial/ioss.h> |
1ebf4347 | 48 | #include <sys/syslimits.h> |
3b63f34d ML |
49 | #endif |
50 | #ifdef __linux__ | |
397d89de | 51 | #ifdef HAVE_LIBUDEV |
3b63f34d | 52 | #include "libudev.h" |
397d89de | 53 | #endif |
33fd8804 | 54 | #ifndef __ANDROID__ |
4b97c9fc | 55 | #include "linux/serial.h" |
33fd8804 | 56 | #endif |
7a6d2196 | 57 | #include "linux_termios.h" |
6c8716e9 UH |
58 | |
59 | /* TCGETX/TCSETX is not available everywhere. */ | |
40978c2b | 60 | #if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX) |
68ec29db | 61 | #define USE_TERMIOX |
40978c2b | 62 | #endif |
3b63f34d | 63 | #endif |
74510d4b | 64 | |
6c8716e9 UH |
65 | /* TIOCINQ/TIOCOUTQ is not available everywhere. */ |
66 | #if !defined(TIOCINQ) && defined(FIONREAD) | |
67 | #define TIOCINQ FIONREAD | |
68 | #endif | |
69 | #if !defined(TIOCOUTQ) && defined(FIONWRITE) | |
70 | #define TIOCOUTQ FIONWRITE | |
71 | #endif | |
72 | ||
71c8a9b9 UH |
73 | #ifndef _WIN32 |
74 | #include "linux_termios.h" | |
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; |
40978c2b ML |
114 | int flow; |
115 | #endif | |
8094e4a0 ML |
116 | }; |
117 | ||
6f1186aa ML |
118 | #ifdef _WIN32 |
119 | typedef HANDLE event_handle; | |
120 | #else | |
121 | typedef int event_handle; | |
122 | #endif | |
123 | ||
da2748bf ML |
124 | /* Standard baud rates. */ |
125 | #ifdef _WIN32 | |
126 | #define BAUD_TYPE DWORD | |
127 | #define BAUD(n) {CBR_##n, n} | |
128 | #else | |
129 | #define BAUD_TYPE speed_t | |
130 | #define BAUD(n) {B##n, n} | |
131 | #endif | |
132 | ||
133 | struct std_baudrate { | |
134 | BAUD_TYPE index; | |
135 | int value; | |
136 | }; | |
137 | ||
138 | const struct std_baudrate std_baudrates[] = { | |
139 | #ifdef _WIN32 | |
140 | /* | |
141 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
142 | * have documented CBR_* macros. | |
143 | */ | |
144 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
145 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 146 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 147 | #else |
eac329d2 UH |
148 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
149 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
150 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
151 | BAUD(230400), | |
da2748bf | 152 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 153 | BAUD(460800), |
da2748bf ML |
154 | #endif |
155 | #endif | |
156 | }; | |
157 | ||
863b35e6 ML |
158 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
159 | ||
da2748bf ML |
160 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
161 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) | |
162 | ||
92f756f8 ML |
163 | /* Debug output macros. */ |
164 | #define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0) | |
165 | #define DEBUG_ERROR(err, msg) DEBUG("%s returning " #err ": " msg, __func__) | |
166 | #define DEBUG_FAIL(msg) do { \ | |
167 | char *errmsg = sp_last_error_message(); \ | |
168 | DEBUG("%s returning SP_ERR_FAIL: " msg ": %s", __func__, errmsg); \ | |
169 | sp_free_error_message(errmsg); \ | |
170 | } while (0); | |
171 | #define RETURN() do { DEBUG("%s returning", __func__); return; } while(0) | |
172 | #define RETURN_CODE(x) do { DEBUG("%s returning " #x, __func__); return x; } while (0) | |
173 | #define RETURN_CODEVAL(x) do { \ | |
174 | switch (x) { \ | |
175 | case SP_OK: RETURN_CODE(SP_OK); \ | |
176 | case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \ | |
177 | case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \ | |
178 | case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \ | |
179 | case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \ | |
180 | } \ | |
181 | } while (0) | |
182 | #define RETURN_OK() RETURN_CODE(SP_OK); | |
183 | #define RETURN_ERROR(err, msg) do { DEBUG_ERROR(err, msg); return err; } while (0) | |
184 | #define RETURN_FAIL(msg) do { DEBUG_FAIL(msg); return SP_ERR_FAIL; } while (0) | |
7c1eff54 ML |
185 | #define RETURN_VALUE(fmt, x) do { \ |
186 | typeof(x) _x = x; \ | |
187 | DEBUG("%s returning " fmt, __func__, _x); \ | |
188 | return _x; \ | |
189 | } while (0) | |
92f756f8 | 190 | #define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0) |
aac4d7f2 | 191 | #define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = SP_ERR_FAIL; } while (0) |
92f756f8 ML |
192 | #define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__) |
193 | ||
64690702 ML |
194 | #define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0) |
195 | ||
348e23cc | 196 | /* Helper functions. */ |
348e23cc | 197 | static struct sp_port **list_append(struct sp_port **list, const char *portname); |
eb6ed20f ML |
198 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
199 | struct sp_port_config *config); | |
200 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, | |
201 | const struct sp_port_config *config); | |
80186526 | 202 | |
eb6ed20f | 203 | enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
204 | { |
205 | struct sp_port *port; | |
5919c913 | 206 | int len; |
d54e9004 | 207 | |
c33efc48 ML |
208 | TRACE("%s, %p", portname, port_ptr); |
209 | ||
32b5ac05 | 210 | if (!port_ptr) |
c33efc48 | 211 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 212 | |
77f262c4 ML |
213 | *port_ptr = NULL; |
214 | ||
d4babed2 | 215 | if (!portname) |
c33efc48 | 216 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 217 | |
ea667be7 ML |
218 | DEBUG("Building structure for port %s", portname); |
219 | ||
d54e9004 | 220 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 221 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 222 | |
5919c913 ML |
223 | len = strlen(portname) + 1; |
224 | ||
eac329d2 | 225 | if (!(port->name = malloc(len))) { |
d54e9004 | 226 | free(port); |
c33efc48 | 227 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
228 | } |
229 | ||
230 | memcpy(port->name, portname, len); | |
231 | ||
8f471c66 ML |
232 | #ifdef _WIN32 |
233 | port->hdl = INVALID_HANDLE_VALUE; | |
234 | #else | |
235 | port->fd = -1; | |
236 | #endif | |
237 | ||
77f262c4 ML |
238 | *port_ptr = port; |
239 | ||
c33efc48 | 240 | RETURN_OK(); |
d54e9004 ML |
241 | } |
242 | ||
1c5aae9d ML |
243 | char *sp_get_port_name(const struct sp_port *port) |
244 | { | |
245 | TRACE("%p", port); | |
246 | ||
247 | if (!port) | |
248 | return NULL; | |
249 | ||
250 | RETURN_VALUE("%s", port->name); | |
251 | } | |
252 | ||
3c126654 ML |
253 | enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr) |
254 | { | |
00d8c56d | 255 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
256 | |
257 | if (!port) | |
258 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
259 | ||
260 | #ifdef _WIN32 | |
261 | HANDLE *handle_ptr = result_ptr; | |
262 | *handle_ptr = port->hdl; | |
263 | #else | |
264 | int *fd_ptr = result_ptr; | |
265 | *fd_ptr = port->fd; | |
266 | #endif | |
267 | ||
268 | RETURN_OK(); | |
269 | } | |
270 | ||
eb6ed20f | 271 | enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr) |
32b5ac05 | 272 | { |
c33efc48 ML |
273 | TRACE("%p, %p", port, copy_ptr); |
274 | ||
32b5ac05 | 275 | if (!copy_ptr) |
c33efc48 | 276 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
277 | |
278 | *copy_ptr = NULL; | |
279 | ||
c33efc48 ML |
280 | if (!port) |
281 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
282 | ||
283 | if (!port->name) | |
284 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 285 | |
ea667be7 ML |
286 | DEBUG("Copying port structure"); |
287 | ||
c33efc48 | 288 | RETURN_VALUE("%p", sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
289 | } |
290 | ||
e3b2f7a4 ML |
291 | void sp_free_port(struct sp_port *port) |
292 | { | |
c33efc48 ML |
293 | TRACE("%p", port); |
294 | ||
00d8c56d | 295 | if (!port) { |
c33efc48 ML |
296 | DEBUG("Null port"); |
297 | RETURN(); | |
298 | } | |
e3b2f7a4 | 299 | |
ea667be7 ML |
300 | DEBUG("Freeing port structure"); |
301 | ||
e3b2f7a4 ML |
302 | if (port->name) |
303 | free(port->name); | |
304 | ||
305 | free(port); | |
c33efc48 ML |
306 | |
307 | RETURN(); | |
e3b2f7a4 ML |
308 | } |
309 | ||
348e23cc | 310 | static struct sp_port **list_append(struct sp_port **list, const char *portname) |
3b63f34d ML |
311 | { |
312 | void *tmp; | |
313 | unsigned int count; | |
f92f1f0c | 314 | |
3b63f34d | 315 | for (count = 0; list[count]; count++); |
d54e9004 | 316 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
317 | goto fail; |
318 | list = tmp; | |
77f262c4 | 319 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 320 | goto fail; |
db2794ce | 321 | list[count + 1] = NULL; |
3b63f34d | 322 | return list; |
f92f1f0c | 323 | |
3b63f34d ML |
324 | fail: |
325 | sp_free_port_list(list); | |
326 | return NULL; | |
327 | } | |
328 | ||
eb6ed20f | 329 | enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 330 | { |
d54e9004 | 331 | struct sp_port **list; |
6b93ede4 | 332 | int ret = SP_ERR_SUPP; |
24c1a4bb | 333 | |
c33efc48 ML |
334 | TRACE("%p", list_ptr); |
335 | ||
dec10e31 ML |
336 | if (!list_ptr) |
337 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
338 | ||
ea667be7 ML |
339 | DEBUG("Enumerating ports"); |
340 | ||
d54e9004 | 341 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 342 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
343 | |
344 | list[0] = NULL; | |
3b63f34d ML |
345 | |
346 | #ifdef _WIN32 | |
347 | HKEY key; | |
bdfb5b8c ML |
348 | TCHAR *value, *data; |
349 | DWORD max_value_len, max_data_size, max_data_len; | |
350 | DWORD value_len, data_size, data_len; | |
3b63f34d | 351 | DWORD type, index = 0; |
8b532d9c ML |
352 | char *name; |
353 | int name_len; | |
3b63f34d | 354 | |
6b93ede4 ML |
355 | ret = SP_OK; |
356 | ||
ea667be7 | 357 | DEBUG("Opening registry key"); |
3b63f34d | 358 | if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"), |
eac329d2 | 359 | 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) { |
c33efc48 | 360 | SET_FAIL(ret, "RegOpenKeyEx() failed"); |
77f262c4 ML |
361 | goto out_done; |
362 | } | |
ea667be7 | 363 | DEBUG("Querying registry key value and data sizes"); |
3b63f34d | 364 | if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
eac329d2 | 365 | &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) { |
c33efc48 | 366 | SET_FAIL(ret, "RegQueryInfoKey() failed"); |
3b63f34d | 367 | goto out_close; |
77f262c4 | 368 | } |
3b63f34d | 369 | max_data_len = max_data_size / sizeof(TCHAR); |
eac329d2 | 370 | if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 371 | SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed"); |
3b63f34d | 372 | goto out_close; |
77f262c4 | 373 | } |
eac329d2 | 374 | if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 375 | SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed"); |
bdfb5b8c | 376 | goto out_free_value; |
77f262c4 | 377 | } |
ea667be7 | 378 | DEBUG("Iterating over values"); |
3b63f34d | 379 | while ( |
d9573bad | 380 | value_len = max_value_len + 1, |
3b63f34d | 381 | data_size = max_data_size, |
bdfb5b8c | 382 | RegEnumValue(key, index, value, &value_len, |
3b63f34d ML |
383 | NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS) |
384 | { | |
385 | data_len = data_size / sizeof(TCHAR); | |
386 | data[data_len] = '\0'; | |
8b532d9c ML |
387 | #ifdef UNICODE |
388 | name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL) | |
389 | #else | |
390 | name_len = data_len + 1; | |
391 | #endif | |
eac329d2 | 392 | if (!(name = malloc(name_len))) { |
c33efc48 | 393 | SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed"); |
8b532d9c | 394 | goto out; |
77f262c4 | 395 | } |
8b532d9c ML |
396 | #ifdef UNICODE |
397 | WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL); | |
398 | #else | |
399 | strcpy(name, data); | |
400 | #endif | |
c33efc48 ML |
401 | if (type == REG_SZ) { |
402 | DEBUG("Found port %s", name); | |
403 | if (!(list = list_append(list, name))) { | |
404 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
405 | goto out; | |
406 | } | |
77f262c4 | 407 | } |
3b63f34d ML |
408 | index++; |
409 | } | |
410 | out: | |
411 | free(data); | |
bdfb5b8c ML |
412 | out_free_value: |
413 | free(value); | |
3b63f34d ML |
414 | out_close: |
415 | RegCloseKey(key); | |
77f262c4 | 416 | out_done: |
3b63f34d ML |
417 | #endif |
418 | #ifdef __APPLE__ | |
419 | mach_port_t master; | |
420 | CFMutableDictionaryRef classes; | |
421 | io_iterator_t iter; | |
422 | char *path; | |
423 | io_object_t port; | |
424 | CFTypeRef cf_path; | |
425 | Boolean result; | |
426 | ||
6b93ede4 ML |
427 | ret = SP_OK; |
428 | ||
ea667be7 | 429 | DEBUG("Getting IOKit master port"); |
eac329d2 | 430 | if (IOMasterPort(MACH_PORT_NULL, &master) != KERN_SUCCESS) { |
c33efc48 | 431 | SET_FAIL(ret, "IOMasterPort() failed"); |
77f262c4 ML |
432 | goto out_done; |
433 | } | |
3b63f34d | 434 | |
ea667be7 | 435 | DEBUG("Creating matching dictionary"); |
eac329d2 | 436 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) { |
c33efc48 | 437 | SET_FAIL(ret, "IOServiceMatching() failed"); |
77f262c4 ML |
438 | goto out_done; |
439 | } | |
3b63f34d ML |
440 | |
441 | CFDictionarySetValue(classes, | |
442 | CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes)); | |
443 | ||
ea667be7 | 444 | DEBUG("Getting matching services"); |
eac329d2 | 445 | if (IOServiceGetMatchingServices(master, classes, &iter) != KERN_SUCCESS) { |
c33efc48 | 446 | SET_FAIL(ret, "IOServiceGetMatchingServices() failed"); |
77f262c4 ML |
447 | goto out_done; |
448 | } | |
3b63f34d | 449 | |
eac329d2 | 450 | if (!(path = malloc(PATH_MAX))) { |
c33efc48 | 451 | SET_ERROR(ret, SP_ERR_MEM, "device path malloc failed"); |
3b63f34d | 452 | goto out_release; |
77f262c4 | 453 | } |
3b63f34d | 454 | |
ea667be7 | 455 | DEBUG("Iterating over results"); |
1ebf4347 | 456 | while ((port = IOIteratorNext(iter))) { |
3b63f34d ML |
457 | cf_path = IORegistryEntryCreateCFProperty(port, |
458 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
459 | if (cf_path) { | |
460 | result = CFStringGetCString(cf_path, | |
461 | path, PATH_MAX, kCFStringEncodingASCII); | |
462 | CFRelease(cf_path); | |
c33efc48 ML |
463 | if (result) { |
464 | DEBUG("Found port %s", path); | |
465 | if (!(list = list_append(list, path))) { | |
466 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
467 | IOObjectRelease(port); | |
468 | goto out; | |
469 | } | |
77f262c4 | 470 | } |
3b63f34d ML |
471 | } |
472 | IOObjectRelease(port); | |
473 | } | |
3b63f34d ML |
474 | out: |
475 | free(path); | |
476 | out_release: | |
477 | IOObjectRelease(iter); | |
77f262c4 | 478 | out_done: |
3b63f34d | 479 | #endif |
397d89de | 480 | #if defined(__linux__) && defined(HAVE_LIBUDEV) |
3b63f34d ML |
481 | struct udev *ud; |
482 | struct udev_enumerate *ud_enumerate; | |
483 | struct udev_list_entry *ud_list; | |
484 | struct udev_list_entry *ud_entry; | |
485 | const char *path; | |
08fe0bdb | 486 | struct udev_device *ud_dev, *ud_parent; |
3b63f34d | 487 | const char *name; |
4b97c9fc ML |
488 | const char *driver; |
489 | int fd, ioctl_result; | |
490 | struct serial_struct serial_info; | |
3b63f34d | 491 | |
6b93ede4 ML |
492 | ret = SP_OK; |
493 | ||
ea667be7 | 494 | DEBUG("Enumerating tty devices"); |
3b63f34d ML |
495 | ud = udev_new(); |
496 | ud_enumerate = udev_enumerate_new(ud); | |
497 | udev_enumerate_add_match_subsystem(ud_enumerate, "tty"); | |
498 | udev_enumerate_scan_devices(ud_enumerate); | |
499 | ud_list = udev_enumerate_get_list_entry(ud_enumerate); | |
ea667be7 | 500 | DEBUG("Iterating over results"); |
eac329d2 | 501 | udev_list_entry_foreach(ud_entry, ud_list) { |
3b63f34d | 502 | path = udev_list_entry_get_name(ud_entry); |
ea667be7 | 503 | DEBUG("Found device %s", path); |
3b63f34d | 504 | ud_dev = udev_device_new_from_syspath(ud, path); |
08fe0bdb ML |
505 | /* If there is no parent device, this is a virtual tty. */ |
506 | ud_parent = udev_device_get_parent(ud_dev); | |
eac329d2 | 507 | if (ud_parent == NULL) { |
ea667be7 | 508 | DEBUG("No parent device, assuming virtual tty"); |
08fe0bdb ML |
509 | udev_device_unref(ud_dev); |
510 | continue; | |
511 | } | |
3b63f34d | 512 | name = udev_device_get_devnode(ud_dev); |
4b97c9fc ML |
513 | /* The serial8250 driver has a hardcoded number of ports. |
514 | * The only way to tell which actually exist on a given system | |
515 | * is to try to open them and make an ioctl call. */ | |
516 | driver = udev_device_get_driver(ud_parent); | |
eac329d2 | 517 | if (driver && !strcmp(driver, "serial8250")) { |
ea667be7 ML |
518 | DEBUG("serial8250 device, attempting to open"); |
519 | if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) { | |
520 | DEBUG("open failed, skipping"); | |
4b97c9fc | 521 | goto skip; |
ea667be7 | 522 | } |
4b97c9fc ML |
523 | ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info); |
524 | close(fd); | |
ea667be7 ML |
525 | if (ioctl_result != 0) { |
526 | DEBUG("ioctl failed, skipping"); | |
4b97c9fc | 527 | goto skip; |
ea667be7 ML |
528 | } |
529 | if (serial_info.type == PORT_UNKNOWN) { | |
530 | DEBUG("port type is unknown, skipping"); | |
4b97c9fc | 531 | goto skip; |
ea667be7 | 532 | } |
4b97c9fc | 533 | } |
c33efc48 | 534 | DEBUG("Found port %s", name); |
348e23cc | 535 | list = list_append(list, name); |
4b97c9fc | 536 | skip: |
3b63f34d | 537 | udev_device_unref(ud_dev); |
eac329d2 | 538 | if (!list) { |
c33efc48 | 539 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); |
3b63f34d | 540 | goto out; |
77f262c4 | 541 | } |
3b63f34d ML |
542 | } |
543 | out: | |
544 | udev_enumerate_unref(ud_enumerate); | |
545 | udev_unref(ud); | |
3b63f34d | 546 | #endif |
77f262c4 | 547 | |
6b93ede4 ML |
548 | switch (ret) { |
549 | case SP_OK: | |
77f262c4 | 550 | *list_ptr = list; |
c33efc48 | 551 | RETURN_OK(); |
6b93ede4 | 552 | case SP_ERR_SUPP: |
9af8cff3 | 553 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform"); |
6b93ede4 | 554 | default: |
77f262c4 ML |
555 | if (list) |
556 | sp_free_port_list(list); | |
77f262c4 | 557 | *list_ptr = NULL; |
c33efc48 | 558 | return ret; |
77f262c4 | 559 | } |
3b63f34d ML |
560 | } |
561 | ||
d54e9004 | 562 | void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
563 | { |
564 | unsigned int i; | |
f92f1f0c | 565 | |
c33efc48 ML |
566 | TRACE("%p", list); |
567 | ||
dec10e31 ML |
568 | if (!list) { |
569 | DEBUG("Null list"); | |
570 | RETURN(); | |
571 | } | |
572 | ||
ea667be7 ML |
573 | DEBUG("Freeing port list"); |
574 | ||
3b63f34d | 575 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 576 | sp_free_port(list[i]); |
3b63f34d | 577 | free(list); |
c33efc48 ML |
578 | |
579 | RETURN(); | |
3b63f34d ML |
580 | } |
581 | ||
c33efc48 ML |
582 | #define CHECK_PORT() do { \ |
583 | if (port == NULL) \ | |
584 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
dec10e31 ML |
585 | if (port->name == NULL) \ |
586 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ | |
587 | } while (0) | |
588 | #ifdef _WIN32 | |
589 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
590 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
591 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 592 | } while (0) |
74510d4b | 593 | #else |
dec10e31 | 594 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
595 | if (port->fd < 0) \ |
596 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 597 | } while (0) |
74510d4b | 598 | #endif |
dec10e31 ML |
599 | #define CHECK_OPEN_PORT() do { \ |
600 | CHECK_PORT(); \ | |
601 | CHECK_PORT_HANDLE(); \ | |
602 | } while (0) | |
74510d4b | 603 | |
eb6ed20f | 604 | enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 605 | { |
bccc7c9f ML |
606 | struct port_data data; |
607 | struct sp_port_config config; | |
608 | enum sp_return ret; | |
609 | ||
00d8c56d | 610 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 611 | |
dec10e31 ML |
612 | CHECK_PORT(); |
613 | ||
e3dcf906 | 614 | if (flags > (SP_MODE_READ | SP_MODE_WRITE)) |
dec10e31 | 615 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 616 | |
ea667be7 ML |
617 | DEBUG("Opening port %s", port->name); |
618 | ||
74510d4b | 619 | #ifdef _WIN32 |
537942c9 | 620 | DWORD desired_access = 0, flags_and_attributes = 0, errors; |
99945a1f | 621 | char *escaped_port_name; |
537942c9 | 622 | COMSTAT status; |
99945a1f ML |
623 | |
624 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
625 | if (!(escaped_port_name = malloc(strlen(port->name + 5)))) | |
c33efc48 | 626 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
627 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
628 | ||
74510d4b | 629 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 630 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
631 | if (flags & SP_MODE_READ) |
632 | desired_access |= GENERIC_READ; | |
633 | if (flags & SP_MODE_WRITE) | |
74510d4b | 634 | desired_access |= GENERIC_WRITE; |
74510d4b | 635 | |
99945a1f | 636 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 637 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
638 | |
639 | free(escaped_port_name); | |
640 | ||
74510d4b | 641 | if (port->hdl == INVALID_HANDLE_VALUE) |
e3dcf906 ML |
642 | RETURN_FAIL("port CreateFile() failed"); |
643 | ||
644 | /* All timeouts initially disabled. */ | |
645 | port->timeouts.ReadIntervalTimeout = 0; | |
646 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
647 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
648 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
649 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 650 | |
e3dcf906 | 651 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
652 | sp_close(port); |
653 | RETURN_FAIL("SetCommTimeouts() failed"); | |
654 | } | |
e3dcf906 ML |
655 | |
656 | /* Prepare OVERLAPPED structures. */ | |
6f1186aa ML |
657 | #define INIT_OVERLAPPED(ovl) do { \ |
658 | memset(&port->ovl, 0, sizeof(port->ovl)); \ | |
659 | port->ovl.hEvent = INVALID_HANDLE_VALUE; \ | |
660 | if ((port->ovl.hEvent = CreateEvent(NULL, TRUE, TRUE, NULL)) \ | |
661 | == INVALID_HANDLE_VALUE) { \ | |
662 | sp_close(port); \ | |
663 | RETURN_FAIL(#ovl "CreateEvent() failed"); \ | |
664 | } \ | |
665 | } while (0) | |
666 | ||
667 | INIT_OVERLAPPED(read_ovl); | |
668 | INIT_OVERLAPPED(write_ovl); | |
669 | INIT_OVERLAPPED(wait_ovl); | |
670 | ||
671 | /* Set event mask for RX and error events. */ | |
672 | if (SetCommMask(port->hdl, EV_RXCHAR | EV_ERR) == 0) { | |
e3dcf906 | 673 | sp_close(port); |
6f1186aa | 674 | RETURN_FAIL("SetCommMask() failed"); |
e3dcf906 | 675 | } |
6f1186aa ML |
676 | |
677 | /* Start background operation for RX and error events. */ | |
678 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
679 | if (GetLastError() != ERROR_IO_PENDING) { | |
680 | sp_close(port); | |
681 | RETURN_FAIL("WaitCommEvent() failed"); | |
682 | } | |
e3dcf906 ML |
683 | } |
684 | ||
685 | port->writing = FALSE; | |
686 | ||
74510d4b | 687 | #else |
e3dcf906 | 688 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 689 | |
74510d4b | 690 | /* Map 'flags' to the OS-specific settings. */ |
a036341b | 691 | if (flags & (SP_MODE_READ | SP_MODE_WRITE)) |
74510d4b | 692 | flags_local |= O_RDWR; |
a036341b | 693 | else if (flags & SP_MODE_READ) |
74510d4b | 694 | flags_local |= O_RDONLY; |
a036341b ML |
695 | else if (flags & SP_MODE_WRITE) |
696 | flags_local |= O_WRONLY; | |
74510d4b ML |
697 | |
698 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 699 | RETURN_FAIL("open() failed"); |
bccc7c9f | 700 | #endif |
9cb98459 | 701 | |
e33ab9aa ML |
702 | ret = get_config(port, &data, &config); |
703 | ||
eac329d2 | 704 | if (ret < 0) { |
e33ab9aa | 705 | sp_close(port); |
c33efc48 | 706 | RETURN_CODEVAL(ret); |
e33ab9aa | 707 | } |
9cb98459 | 708 | |
bccc7c9f ML |
709 | /* Set sane port settings. */ |
710 | #ifdef _WIN32 | |
711 | data.dcb.fBinary = TRUE; | |
712 | data.dcb.fDsrSensitivity = FALSE; | |
713 | data.dcb.fErrorChar = FALSE; | |
714 | data.dcb.fNull = FALSE; | |
715 | data.dcb.fAbortOnError = TRUE; | |
716 | #else | |
b251be4b | 717 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
718 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
719 | #ifdef IUCLC | |
720 | data.term.c_iflag &= ~IUCLC; | |
721 | #endif | |
722 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
723 | #ifdef OLCUC | |
724 | data.term.c_oflag &= ~OLCUC; | |
725 | #endif | |
726 | #ifdef NLDLY | |
727 | data.term.c_oflag &= ~NLDLY; | |
728 | #endif | |
729 | #ifdef CRDLY | |
730 | data.term.c_oflag &= ~CRDLY; | |
731 | #endif | |
732 | #ifdef TABDLY | |
733 | data.term.c_oflag &= ~TABDLY; | |
734 | #endif | |
735 | #ifdef BSDLY | |
736 | data.term.c_oflag &= ~BSDLY; | |
737 | #endif | |
738 | #ifdef VTDLY | |
739 | data.term.c_oflag &= ~VTDLY; | |
740 | #endif | |
741 | #ifdef FFDLY | |
742 | data.term.c_oflag &= ~FFDLY; | |
743 | #endif | |
b251be4b | 744 | #ifdef OFILL |
9cb98459 ML |
745 | data.term.c_oflag &= ~OFILL; |
746 | #endif | |
c3e05092 | 747 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 748 | data.term.c_cc[VMIN] = 0; |
b251be4b | 749 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 750 | |
b251be4b ML |
751 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
752 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 753 | #endif |
9cb98459 | 754 | |
537942c9 | 755 | #ifdef _WIN32 |
1a2a1544 UH |
756 | if (ClearCommError(port->hdl, &errors, &status) == 0) |
757 | RETURN_FAIL("ClearCommError() failed"); | |
537942c9 ML |
758 | #endif |
759 | ||
e33ab9aa ML |
760 | ret = set_config(port, &data, &config); |
761 | ||
eac329d2 | 762 | if (ret < 0) { |
e33ab9aa | 763 | sp_close(port); |
c33efc48 | 764 | RETURN_CODEVAL(ret); |
e33ab9aa | 765 | } |
74510d4b | 766 | |
c33efc48 | 767 | RETURN_OK(); |
74510d4b ML |
768 | } |
769 | ||
eb6ed20f | 770 | enum sp_return sp_close(struct sp_port *port) |
74510d4b | 771 | { |
c33efc48 ML |
772 | TRACE("%p", port); |
773 | ||
dec10e31 | 774 | CHECK_OPEN_PORT(); |
74510d4b | 775 | |
ea667be7 ML |
776 | DEBUG("Closing port %s", port->name); |
777 | ||
74510d4b ML |
778 | #ifdef _WIN32 |
779 | /* Returns non-zero upon success, 0 upon failure. */ | |
780 | if (CloseHandle(port->hdl) == 0) | |
e3dcf906 | 781 | RETURN_FAIL("port CloseHandle() failed"); |
8f471c66 | 782 | port->hdl = INVALID_HANDLE_VALUE; |
6f1186aa ML |
783 | |
784 | /* Close event handles for overlapped structures. */ | |
785 | #define CLOSE_OVERLAPPED(ovl) do { \ | |
786 | if (port->ovl.hEvent != INVALID_HANDLE_VALUE && \ | |
787 | CloseHandle(port->ovl.hEvent) == 0) \ | |
788 | RETURN_FAIL(# ovl "event CloseHandle() failed"); \ | |
789 | } while (0) | |
790 | CLOSE_OVERLAPPED(read_ovl); | |
791 | CLOSE_OVERLAPPED(write_ovl); | |
792 | CLOSE_OVERLAPPED(wait_ovl); | |
793 | ||
74510d4b ML |
794 | #else |
795 | /* Returns 0 upon success, -1 upon failure. */ | |
796 | if (close(port->fd) == -1) | |
c33efc48 | 797 | RETURN_FAIL("close() failed"); |
8f471c66 | 798 | port->fd = -1; |
74510d4b ML |
799 | #endif |
800 | ||
c33efc48 | 801 | RETURN_OK(); |
74510d4b ML |
802 | } |
803 | ||
fd8fd11a | 804 | enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 805 | { |
00d8c56d | 806 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 807 | |
dec10e31 ML |
808 | CHECK_OPEN_PORT(); |
809 | ||
810 | if (buffers > SP_BUF_BOTH) | |
811 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 812 | |
0ba3e49b | 813 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 ML |
814 | |
815 | DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name); | |
816 | ||
74510d4b | 817 | #ifdef _WIN32 |
fd8fd11a ML |
818 | DWORD flags = 0; |
819 | if (buffers & SP_BUF_INPUT) | |
820 | flags |= PURGE_RXCLEAR; | |
821 | if (buffers & SP_BUF_OUTPUT) | |
822 | flags |= PURGE_TXCLEAR; | |
823 | ||
74510d4b | 824 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 825 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 826 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 827 | #else |
fd8fd11a ML |
828 | int flags = 0; |
829 | if (buffers & SP_BUF_BOTH) | |
830 | flags = TCIOFLUSH; | |
831 | else if (buffers & SP_BUF_INPUT) | |
832 | flags = TCIFLUSH; | |
82f424e6 | 833 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
834 | flags = TCOFLUSH; |
835 | ||
74510d4b | 836 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 837 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 838 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 839 | #endif |
c33efc48 | 840 | RETURN_OK(); |
74510d4b ML |
841 | } |
842 | ||
69a3739c ML |
843 | enum sp_return sp_drain(struct sp_port *port) |
844 | { | |
c33efc48 ML |
845 | TRACE("%p", port); |
846 | ||
dec10e31 | 847 | CHECK_OPEN_PORT(); |
69a3739c | 848 | |
ea667be7 ML |
849 | DEBUG("Draining port %s", port->name); |
850 | ||
69a3739c ML |
851 | #ifdef _WIN32 |
852 | /* Returns non-zero upon success, 0 upon failure. */ | |
853 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 854 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 855 | RETURN_OK(); |
69a3739c | 856 | #else |
2c827b21 ML |
857 | int result; |
858 | while (1) { | |
33fd8804 ML |
859 | #ifdef __ANDROID__ |
860 | int arg = 1; | |
861 | result = ioctl(port->fd, TCSBRK, &arg); | |
862 | #else | |
2c827b21 | 863 | result = tcdrain(port->fd); |
33fd8804 | 864 | #endif |
2c827b21 ML |
865 | if (result < 0) { |
866 | if (errno == EINTR) { | |
867 | DEBUG("tcdrain() was interrupted"); | |
868 | continue; | |
869 | } else { | |
870 | RETURN_FAIL("tcdrain() failed"); | |
871 | } | |
872 | } else { | |
873 | RETURN_OK(); | |
874 | } | |
875 | } | |
69a3739c | 876 | #endif |
69a3739c ML |
877 | } |
878 | ||
e3dcf906 ML |
879 | enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, size_t count, unsigned int timeout) |
880 | { | |
881 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
882 | ||
883 | CHECK_OPEN_PORT(); | |
884 | ||
885 | if (!buf) | |
886 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
887 | ||
888 | if (timeout) | |
889 | DEBUG("Writing %d bytes to port %s, timeout %d ms", count, port->name, timeout); | |
890 | else | |
891 | DEBUG("Writing %d bytes to port %s, no timeout", count, port->name); | |
892 | ||
893 | if (count == 0) | |
894 | RETURN_VALUE("0", 0); | |
895 | ||
896 | #ifdef _WIN32 | |
897 | DWORD bytes_written = 0; | |
898 | BOOL result; | |
899 | ||
900 | /* Wait for previous non-blocking write to complete, if any. */ | |
901 | if (port->writing) { | |
902 | DEBUG("Waiting for previous write to complete"); | |
903 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
904 | port->writing = 0; | |
905 | if (!result) | |
906 | RETURN_FAIL("Previous write failed to complete"); | |
907 | DEBUG("Previous write completed"); | |
908 | } | |
909 | ||
910 | /* Set timeout. */ | |
911 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
912 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
913 | RETURN_FAIL("SetCommTimeouts() failed"); | |
914 | ||
915 | /* Start write. */ | |
916 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
917 | if (GetLastError() == ERROR_IO_PENDING) { | |
918 | DEBUG("Waiting for write to complete"); | |
919 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
920 | DEBUG("Write completed, %d/%d bytes written", bytes_written, count); | |
921 | RETURN_VALUE("%d", bytes_written); | |
922 | } else { | |
923 | RETURN_FAIL("WriteFile() failed"); | |
924 | } | |
925 | } else { | |
926 | DEBUG("Write completed immediately"); | |
927 | RETURN_VALUE("%d", count); | |
928 | } | |
929 | #else | |
930 | size_t bytes_written = 0; | |
931 | unsigned char *ptr = (unsigned char *) buf; | |
932 | struct timeval start, delta, now, end = {0, 0}; | |
933 | fd_set fds; | |
934 | int result; | |
935 | ||
936 | if (timeout) { | |
937 | /* Get time at start of operation. */ | |
938 | gettimeofday(&start, NULL); | |
939 | /* Define duration of timeout. */ | |
940 | delta.tv_sec = timeout / 1000; | |
1b342042 | 941 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
942 | /* Calculate time at which we should give up. */ |
943 | timeradd(&start, &delta, &end); | |
944 | } | |
945 | ||
946 | /* Loop until we have written the requested number of bytes. */ | |
947 | while (bytes_written < count) | |
948 | { | |
949 | /* Wait until space is available. */ | |
950 | FD_ZERO(&fds); | |
951 | FD_SET(port->fd, &fds); | |
952 | if (timeout) { | |
953 | gettimeofday(&now, NULL); | |
954 | if (timercmp(&now, &end, >)) { | |
955 | DEBUG("write timed out"); | |
956 | RETURN_VALUE("%d", bytes_written); | |
957 | } | |
958 | timersub(&end, &now, &delta); | |
959 | } | |
960 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
961 | if (result < 0) { |
962 | if (errno == EINTR) { | |
963 | DEBUG("select() call was interrupted, repeating"); | |
964 | continue; | |
965 | } else { | |
966 | RETURN_FAIL("select() failed"); | |
967 | } | |
968 | } else if (result == 0) { | |
e3dcf906 ML |
969 | DEBUG("write timed out"); |
970 | RETURN_VALUE("%d", bytes_written); | |
971 | } | |
972 | ||
973 | /* Do write. */ | |
974 | result = write(port->fd, ptr, count - bytes_written); | |
975 | ||
976 | if (result < 0) { | |
977 | if (errno == EAGAIN) | |
978 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
979 | continue; | |
980 | else | |
981 | /* This is an actual failure. */ | |
982 | RETURN_FAIL("write() failed"); | |
983 | } | |
984 | ||
985 | bytes_written += result; | |
986 | ptr += result; | |
987 | } | |
988 | ||
989 | RETURN_VALUE("%d", bytes_written); | |
990 | #endif | |
991 | } | |
992 | ||
993 | enum sp_return sp_nonblocking_write(struct sp_port *port, const void *buf, size_t count) | |
74510d4b | 994 | { |
c33efc48 ML |
995 | TRACE("%p, %p, %d", port, buf, count); |
996 | ||
dec10e31 | 997 | CHECK_OPEN_PORT(); |
74510d4b ML |
998 | |
999 | if (!buf) | |
c33efc48 | 1000 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1001 | |
ea667be7 ML |
1002 | DEBUG("Writing up to %d bytes to port %s", count, port->name); |
1003 | ||
a3cb91f5 ML |
1004 | if (count == 0) |
1005 | RETURN_VALUE("0", 0); | |
1006 | ||
74510d4b ML |
1007 | #ifdef _WIN32 |
1008 | DWORD written = 0; | |
0765af56 | 1009 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 1010 | |
e3dcf906 ML |
1011 | /* Check whether previous write is complete. */ |
1012 | if (port->writing) { | |
1013 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
1014 | DEBUG("Previous write completed"); | |
1015 | port->writing = 0; | |
1016 | } else { | |
1017 | DEBUG("Previous write not complete"); | |
1018 | /* Can't take a new write until the previous one finishes. */ | |
1019 | RETURN_VALUE("0", 0); | |
a3cb91f5 | 1020 | } |
e3dcf906 | 1021 | } |
a3cb91f5 | 1022 | |
e3dcf906 ML |
1023 | /* Set timeout. */ |
1024 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
1025 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1026 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1027 | ||
1028 | /* Keep writing data until the OS has to actually start an async IO for it. | |
1029 | * At that point we know the buffer is full. */ | |
1030 | while (written < count) | |
1031 | { | |
1032 | /* Copy first byte of user buffer. */ | |
1033 | port->pending_byte = *ptr++; | |
1034 | ||
1035 | /* Start asynchronous write. */ | |
1036 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
1037 | if (GetLastError() == ERROR_IO_PENDING) { | |
64d99621 ML |
1038 | if (HasOverlappedIoCompleted(&port->write_ovl)) { |
1039 | DEBUG("Asynchronous write completed immediately"); | |
1040 | port->writing = 0; | |
1041 | written++; | |
1042 | continue; | |
1043 | } else { | |
1044 | DEBUG("Asynchronous write running"); | |
1045 | port->writing = 1; | |
1046 | RETURN_VALUE("%d", ++written); | |
1047 | } | |
a3cb91f5 | 1048 | } else { |
e3dcf906 ML |
1049 | /* Actual failure of some kind. */ |
1050 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 1051 | } |
e3dcf906 | 1052 | } else { |
9af8cff3 | 1053 | DEBUG("Single byte written immediately"); |
e3dcf906 | 1054 | written++; |
a3cb91f5 ML |
1055 | } |
1056 | } | |
1057 | ||
9af8cff3 | 1058 | DEBUG("All bytes written immediately"); |
e3dcf906 | 1059 | |
c33efc48 | 1060 | RETURN_VALUE("%d", written); |
74510d4b ML |
1061 | #else |
1062 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1063 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1064 | |
74510d4b | 1065 | if (written < 0) |
c33efc48 | 1066 | RETURN_FAIL("write() failed"); |
74510d4b | 1067 | else |
c33efc48 | 1068 | RETURN_VALUE("%d", written); |
74510d4b ML |
1069 | #endif |
1070 | } | |
1071 | ||
e3dcf906 ML |
1072 | enum sp_return sp_blocking_read(struct sp_port *port, void *buf, size_t count, unsigned int timeout) |
1073 | { | |
1074 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
1075 | ||
1076 | CHECK_OPEN_PORT(); | |
1077 | ||
1078 | if (!buf) | |
1079 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1080 | ||
1081 | if (timeout) | |
1082 | DEBUG("Reading %d bytes from port %s, timeout %d ms", count, port->name, timeout); | |
1083 | else | |
1084 | DEBUG("Reading %d bytes from port %s, no timeout", count, port->name); | |
1085 | ||
1086 | if (count == 0) | |
1087 | RETURN_VALUE("0", 0); | |
1088 | ||
1089 | #ifdef _WIN32 | |
1090 | DWORD bytes_read = 0; | |
1091 | ||
1092 | /* Set timeout. */ | |
1093 | port->timeouts.ReadIntervalTimeout = 0; | |
1094 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
1095 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1096 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1097 | ||
1098 | /* Start read. */ | |
1099 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
1100 | if (GetLastError() == ERROR_IO_PENDING) { | |
1101 | DEBUG("Waiting for read to complete"); | |
1102 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
1103 | DEBUG("Read completed, %d/%d bytes read", bytes_read, count); | |
e3dcf906 ML |
1104 | } else { |
1105 | RETURN_FAIL("ReadFile() failed"); | |
1106 | } | |
1107 | } else { | |
1108 | DEBUG("Read completed immediately"); | |
6f1186aa ML |
1109 | bytes_read = count; |
1110 | } | |
1111 | ||
1112 | /* Start background operation for subsequent events. */ | |
1113 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
1114 | if (GetLastError() != ERROR_IO_PENDING) | |
1115 | RETURN_FAIL("WaitCommEvent() failed"); | |
e3dcf906 | 1116 | } |
6f1186aa ML |
1117 | |
1118 | RETURN_VALUE("%d", bytes_read); | |
1119 | ||
e3dcf906 ML |
1120 | #else |
1121 | size_t bytes_read = 0; | |
1122 | unsigned char *ptr = (unsigned char *) buf; | |
1123 | struct timeval start, delta, now, end = {0, 0}; | |
1124 | fd_set fds; | |
1125 | int result; | |
1126 | ||
1127 | if (timeout) { | |
1128 | /* Get time at start of operation. */ | |
1129 | gettimeofday(&start, NULL); | |
1130 | /* Define duration of timeout. */ | |
1131 | delta.tv_sec = timeout / 1000; | |
1b342042 | 1132 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
1133 | /* Calculate time at which we should give up. */ |
1134 | timeradd(&start, &delta, &end); | |
1135 | } | |
1136 | ||
1137 | /* Loop until we have the requested number of bytes. */ | |
1138 | while (bytes_read < count) | |
1139 | { | |
1140 | /* Wait until data is available. */ | |
1141 | FD_ZERO(&fds); | |
1142 | FD_SET(port->fd, &fds); | |
1143 | if (timeout) { | |
1144 | gettimeofday(&now, NULL); | |
1145 | if (timercmp(&now, &end, >)) | |
1146 | /* Timeout has expired. */ | |
1147 | RETURN_VALUE("%d", bytes_read); | |
1148 | timersub(&end, &now, &delta); | |
1149 | } | |
1150 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
1151 | if (result < 0) { |
1152 | if (errno == EINTR) { | |
1153 | DEBUG("select() call was interrupted, repeating"); | |
1154 | continue; | |
1155 | } else { | |
1156 | RETURN_FAIL("select() failed"); | |
1157 | } | |
1158 | } else if (result == 0) { | |
e3dcf906 ML |
1159 | DEBUG("read timed out"); |
1160 | RETURN_VALUE("%d", bytes_read); | |
1161 | } | |
1162 | ||
1163 | /* Do read. */ | |
1164 | result = read(port->fd, ptr, count - bytes_read); | |
1165 | ||
1166 | if (result < 0) { | |
1167 | if (errno == EAGAIN) | |
1168 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1169 | continue; | |
1170 | else | |
1171 | /* This is an actual failure. */ | |
1172 | RETURN_FAIL("read() failed"); | |
1173 | } | |
1174 | ||
1175 | bytes_read += result; | |
1176 | ptr += result; | |
1177 | } | |
1178 | ||
1179 | RETURN_VALUE("%d", bytes_read); | |
1180 | #endif | |
1181 | } | |
1182 | ||
1183 | enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, size_t count) | |
74510d4b | 1184 | { |
c33efc48 ML |
1185 | TRACE("%p, %p, %d", port, buf, count); |
1186 | ||
dec10e31 | 1187 | CHECK_OPEN_PORT(); |
74510d4b ML |
1188 | |
1189 | if (!buf) | |
c33efc48 | 1190 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1191 | |
ea667be7 ML |
1192 | DEBUG("Reading up to %d bytes from port %s", count, port->name); |
1193 | ||
74510d4b | 1194 | #ifdef _WIN32 |
e3dcf906 | 1195 | DWORD bytes_read; |
f92f1f0c | 1196 | |
e3dcf906 ML |
1197 | /* Set timeout. */ |
1198 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1199 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
1200 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1201 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1202 | ||
1203 | /* Do read. */ | |
1204 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1205 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1206 | |
1207 | /* Get number of bytes read. */ | |
1622ef60 ML |
1208 | if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0) |
1209 | RETURN_FAIL("GetOverlappedResult() failed"); | |
e3dcf906 | 1210 | |
6f1186aa ML |
1211 | if (bytes_read > 0) { |
1212 | /* Start background operation for subsequent events. */ | |
1213 | if (WaitCommEvent(port->hdl, &port->events, &port->wait_ovl) == 0) { | |
1214 | if (GetLastError() != ERROR_IO_PENDING) | |
1215 | RETURN_FAIL("WaitCommEvent() failed"); | |
1216 | } | |
1217 | } | |
1218 | ||
c33efc48 | 1219 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1220 | #else |
1221 | ssize_t bytes_read; | |
f92f1f0c | 1222 | |
74510d4b | 1223 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1224 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1225 | if (errno == EAGAIN) |
1226 | /* No bytes available. */ | |
33d5ff47 ML |
1227 | bytes_read = 0; |
1228 | else | |
1229 | /* This is an actual failure. */ | |
1230 | RETURN_FAIL("read() failed"); | |
1231 | } | |
c33efc48 | 1232 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1233 | #endif |
1234 | } | |
1235 | ||
3353c22f ML |
1236 | enum sp_return sp_input_waiting(struct sp_port *port) |
1237 | { | |
1238 | TRACE("%p", port); | |
1239 | ||
1240 | CHECK_OPEN_PORT(); | |
1241 | ||
1242 | DEBUG("Checking input bytes waiting on port %s", port->name); | |
1243 | ||
1244 | #ifdef _WIN32 | |
1245 | DWORD errors; | |
1246 | COMSTAT comstat; | |
1247 | ||
1248 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1249 | RETURN_FAIL("ClearCommError() failed"); |
3353c22f ML |
1250 | RETURN_VALUE("%d", comstat.cbInQue); |
1251 | #else | |
1252 | int bytes_waiting; | |
1253 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1254 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
1255 | RETURN_VALUE("%d", bytes_waiting); | |
1256 | #endif | |
1257 | } | |
1258 | ||
1259 | enum sp_return sp_output_waiting(struct sp_port *port) | |
1260 | { | |
1261 | TRACE("%p", port); | |
1262 | ||
1263 | CHECK_OPEN_PORT(); | |
1264 | ||
1265 | DEBUG("Checking output bytes waiting on port %s", port->name); | |
1266 | ||
1267 | #ifdef _WIN32 | |
1268 | DWORD errors; | |
1269 | COMSTAT comstat; | |
1270 | ||
1271 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1a2a1544 | 1272 | RETURN_FAIL("ClearCommError() failed"); |
3353c22f ML |
1273 | RETURN_VALUE("%d", comstat.cbOutQue); |
1274 | #else | |
1275 | int bytes_waiting; | |
1276 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1277 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
1278 | RETURN_VALUE("%d", bytes_waiting); | |
1279 | #endif | |
1280 | } | |
1281 | ||
6f1186aa ML |
1282 | enum sp_return sp_new_event_set(struct sp_event_set **result_ptr) |
1283 | { | |
1284 | struct sp_event_set *result; | |
1285 | ||
1286 | TRACE("%p", result_ptr); | |
1287 | ||
1288 | if (!result_ptr) | |
1289 | RETURN_ERROR(SP_ERR_ARG, "Null result"); | |
1290 | ||
1291 | *result_ptr = NULL; | |
1292 | ||
1293 | if (!(result = malloc(sizeof(struct sp_event_set)))) | |
1294 | RETURN_ERROR(SP_ERR_MEM, "sp_event_set malloc() failed"); | |
1295 | ||
1296 | memset(result, 0, sizeof(struct sp_event_set)); | |
1297 | ||
1298 | *result_ptr = result; | |
1299 | ||
1300 | RETURN_OK(); | |
1301 | } | |
1302 | ||
1303 | static enum sp_return add_handle(struct sp_event_set *event_set, | |
1304 | event_handle handle, enum sp_event mask) | |
1305 | { | |
1306 | void *new_handles; | |
1307 | enum sp_event *new_masks; | |
1308 | ||
1309 | TRACE("%p, %d, %d", event_set, handle, mask); | |
1310 | ||
1311 | if (!(new_handles = realloc(event_set->handles, | |
1312 | sizeof(event_handle) * (event_set->count + 1)))) | |
1313 | RETURN_ERROR(SP_ERR_MEM, "handle array realloc() failed"); | |
1314 | ||
1315 | if (!(new_masks = realloc(event_set->masks, | |
1316 | sizeof(enum sp_event) * (event_set->count + 1)))) | |
1317 | RETURN_ERROR(SP_ERR_MEM, "mask array realloc() failed"); | |
1318 | ||
1319 | event_set->handles = new_handles; | |
1320 | event_set->masks = new_masks; | |
1321 | ||
1322 | ((event_handle *) event_set->handles)[event_set->count] = handle; | |
1323 | event_set->masks[event_set->count] = mask; | |
1324 | ||
1325 | event_set->count++; | |
1326 | ||
1327 | RETURN_OK(); | |
1328 | } | |
1329 | ||
1330 | enum sp_return sp_add_port_events(struct sp_event_set *event_set, | |
1331 | const struct sp_port *port, enum sp_event mask) | |
1332 | { | |
1333 | TRACE("%p, %p, %d", event_set, port, mask); | |
1334 | ||
1335 | if (!event_set) | |
1336 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1337 | ||
1338 | if (!port) | |
1339 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
1340 | ||
1341 | if (mask > (SP_EVENT_RX_READY | SP_EVENT_TX_READY | SP_EVENT_ERROR)) | |
1342 | RETURN_ERROR(SP_ERR_ARG, "Invalid event mask"); | |
1343 | ||
1344 | if (!mask) | |
1345 | RETURN_OK(); | |
1346 | ||
1347 | #ifdef _WIN32 | |
1348 | enum sp_event handle_mask; | |
1349 | if ((handle_mask = mask & SP_EVENT_TX_READY)) | |
1350 | TRY(add_handle(event_set, port->write_ovl.hEvent, handle_mask)); | |
1351 | if ((handle_mask = mask & (SP_EVENT_RX_READY | SP_EVENT_ERROR))) | |
1352 | TRY(add_handle(event_set, port->wait_ovl.hEvent, handle_mask)); | |
1353 | #else | |
1354 | TRY(add_handle(event_set, port->fd, mask)); | |
1355 | #endif | |
1356 | ||
1357 | RETURN_OK(); | |
1358 | } | |
1359 | ||
1360 | void sp_free_event_set(struct sp_event_set *event_set) | |
1361 | { | |
1362 | TRACE("%p", event_set); | |
1363 | ||
1364 | if (!event_set) { | |
1365 | DEBUG("Null event set"); | |
1366 | RETURN(); | |
1367 | } | |
1368 | ||
1369 | DEBUG("Freeing event set"); | |
1370 | ||
1371 | if (event_set->handles) | |
1372 | free(event_set->handles); | |
1373 | if (event_set->masks) | |
1374 | free(event_set->masks); | |
1375 | ||
1376 | free(event_set); | |
1377 | ||
1378 | RETURN(); | |
1379 | } | |
1380 | ||
1381 | enum sp_return sp_wait(struct sp_event_set *event_set, unsigned int timeout) | |
1382 | { | |
1383 | TRACE("%p, %d", event_set, timeout); | |
1384 | ||
1385 | if (!event_set) | |
1386 | RETURN_ERROR(SP_ERR_ARG, "Null event set"); | |
1387 | ||
1388 | #ifdef _WIN32 | |
1389 | if (WaitForMultipleObjects(event_set->count, event_set->handles, FALSE, | |
1390 | timeout ? timeout : INFINITE) == WAIT_FAILED) | |
1391 | RETURN_FAIL("WaitForMultipleObjects() failed"); | |
1392 | ||
1393 | RETURN_OK(); | |
1394 | #else | |
1395 | struct timeval start, delta, now, end = {0, 0}; | |
1396 | int result, timeout_remaining; | |
1397 | struct pollfd *pollfds; | |
1398 | unsigned int i; | |
1399 | ||
1400 | if (!(pollfds = malloc(sizeof(struct pollfd) * event_set->count))) | |
1401 | RETURN_ERROR(SP_ERR_MEM, "pollfds malloc() failed"); | |
1402 | ||
1403 | for (i = 0; i < event_set->count; i++) { | |
1404 | pollfds[i].fd = ((int *) event_set->handles)[i]; | |
1405 | pollfds[i].events = 0; | |
1406 | pollfds[i].revents = 0; | |
1407 | if (event_set->masks[i] & SP_EVENT_RX_READY) | |
1408 | pollfds[i].events |= POLLIN; | |
1409 | if (event_set->masks[i] & SP_EVENT_TX_READY) | |
1410 | pollfds[i].events |= POLLOUT; | |
1411 | if (event_set->masks[i] & SP_EVENT_ERROR) | |
1412 | pollfds[i].events |= POLLERR; | |
1413 | } | |
1414 | ||
1415 | if (timeout) { | |
1416 | /* Get time at start of operation. */ | |
1417 | gettimeofday(&start, NULL); | |
1418 | /* Define duration of timeout. */ | |
1419 | delta.tv_sec = timeout / 1000; | |
1420 | delta.tv_usec = (timeout % 1000) * 1000; | |
1421 | /* Calculate time at which we should give up. */ | |
1422 | timeradd(&start, &delta, &end); | |
1423 | } | |
1424 | ||
1425 | /* Loop until an event occurs. */ | |
1426 | while (1) | |
1427 | { | |
1428 | if (timeout) { | |
1429 | gettimeofday(&now, NULL); | |
1430 | if (timercmp(&now, &end, >)) { | |
1431 | DEBUG("wait timed out"); | |
1432 | break; | |
1433 | } | |
1434 | timersub(&end, &now, &delta); | |
1435 | timeout_remaining = delta.tv_sec * 1000 + delta.tv_usec / 1000; | |
1436 | } | |
1437 | ||
1438 | result = poll(pollfds, event_set->count, timeout ? timeout_remaining : -1); | |
1439 | ||
1440 | if (result < 0) { | |
1441 | if (errno == EINTR) { | |
1442 | DEBUG("poll() call was interrupted, repeating"); | |
1443 | continue; | |
1444 | } else { | |
1445 | free(pollfds); | |
1446 | RETURN_FAIL("poll() failed"); | |
1447 | } | |
1448 | } else if (result == 0) { | |
1449 | DEBUG("poll() timed out"); | |
1450 | break; | |
1451 | } else { | |
1452 | DEBUG("poll() completed"); | |
1453 | break; | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | free(pollfds); | |
1458 | RETURN_OK(); | |
1459 | #endif | |
1460 | } | |
1461 | ||
7a6d2196 ML |
1462 | #ifdef __linux__ |
1463 | static enum sp_return get_baudrate(int fd, int *baudrate) | |
1464 | { | |
1465 | void *data; | |
1466 | ||
c33efc48 ML |
1467 | TRACE("%d, %p", fd, baudrate); |
1468 | ||
ea667be7 ML |
1469 | DEBUG("Getting baud rate"); |
1470 | ||
7a6d2196 | 1471 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1472 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1473 | |
8d43110a ML |
1474 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1475 | free(data); | |
c33efc48 | 1476 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1477 | } |
7a6d2196 ML |
1478 | |
1479 | *baudrate = get_termios_speed(data); | |
1480 | ||
8d43110a ML |
1481 | free(data); |
1482 | ||
c33efc48 | 1483 | RETURN_OK(); |
7a6d2196 ML |
1484 | } |
1485 | ||
1486 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1487 | { | |
1488 | void *data; | |
1489 | ||
c33efc48 ML |
1490 | TRACE("%d, %d", fd, baudrate); |
1491 | ||
ea667be7 ML |
1492 | DEBUG("Getting baud rate"); |
1493 | ||
7a6d2196 | 1494 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1495 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1496 | |
8d43110a ML |
1497 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1498 | free(data); | |
c33efc48 | 1499 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1500 | } |
7a6d2196 | 1501 | |
ea667be7 ML |
1502 | DEBUG("Setting baud rate"); |
1503 | ||
7a6d2196 ML |
1504 | set_termios_speed(data, baudrate); |
1505 | ||
8d43110a ML |
1506 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1507 | free(data); | |
c33efc48 | 1508 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
1509 | } |
1510 | ||
1511 | free(data); | |
7a6d2196 | 1512 | |
c33efc48 | 1513 | RETURN_OK(); |
7a6d2196 | 1514 | } |
40978c2b ML |
1515 | |
1516 | #ifdef USE_TERMIOX | |
1517 | static enum sp_return get_flow(int fd, int *flow) | |
1518 | { | |
1519 | void *data; | |
1520 | ||
c33efc48 ML |
1521 | TRACE("%d, %p", fd, flow); |
1522 | ||
ea667be7 ML |
1523 | DEBUG("Getting advanced flow control"); |
1524 | ||
40978c2b | 1525 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 1526 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1527 | |
8d43110a ML |
1528 | if (ioctl(fd, TCGETX, data) < 0) { |
1529 | free(data); | |
c33efc48 | 1530 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1531 | } |
40978c2b ML |
1532 | |
1533 | *flow = get_termiox_flow(data); | |
1534 | ||
8d43110a ML |
1535 | free(data); |
1536 | ||
c33efc48 | 1537 | RETURN_OK(); |
40978c2b ML |
1538 | } |
1539 | ||
1540 | static enum sp_return set_flow(int fd, int flow) | |
1541 | { | |
1542 | void *data; | |
1543 | ||
c33efc48 ML |
1544 | TRACE("%d, %d", fd, flow); |
1545 | ||
ea667be7 ML |
1546 | DEBUG("Getting advanced flow control"); |
1547 | ||
40978c2b | 1548 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 1549 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1550 | |
8d43110a ML |
1551 | if (ioctl(fd, TCGETX, data) < 0) { |
1552 | free(data); | |
c33efc48 | 1553 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1554 | } |
40978c2b | 1555 | |
ea667be7 ML |
1556 | DEBUG("Setting advanced flow control"); |
1557 | ||
40978c2b ML |
1558 | set_termiox_flow(data, flow); |
1559 | ||
8d43110a ML |
1560 | if (ioctl(fd, TCSETX, data) < 0) { |
1561 | free(data); | |
c33efc48 | 1562 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
1563 | } |
1564 | ||
1565 | free(data); | |
40978c2b | 1566 | |
c33efc48 | 1567 | RETURN_OK(); |
40978c2b ML |
1568 | } |
1569 | #endif /* USE_TERMIOX */ | |
1570 | #endif /* __linux__ */ | |
7a6d2196 | 1571 | |
eb6ed20f ML |
1572 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1573 | struct sp_port_config *config) | |
8094e4a0 | 1574 | { |
da2748bf | 1575 | unsigned int i; |
cbf628c7 | 1576 | |
c33efc48 ML |
1577 | TRACE("%p, %p, %p", port, data, config); |
1578 | ||
ea667be7 ML |
1579 | DEBUG("Getting configuration for port %s", port->name); |
1580 | ||
8094e4a0 | 1581 | #ifdef _WIN32 |
e33ab9aa | 1582 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1583 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1584 | |
067417af | 1585 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1586 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1587 | config->baudrate = std_baudrates[i].value; |
1588 | break; | |
1589 | } | |
1590 | } | |
1591 | ||
1592 | if (i == NUM_STD_BAUDRATES) | |
1593 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1594 | config->baudrate = data->dcb.BaudRate; |
067417af | 1595 | |
e33ab9aa | 1596 | config->bits = data->dcb.ByteSize; |
067417af | 1597 | |
e33ab9aa ML |
1598 | if (data->dcb.fParity) |
1599 | switch (data->dcb.Parity) { | |
067417af ML |
1600 | case NOPARITY: |
1601 | config->parity = SP_PARITY_NONE; | |
1602 | break; | |
e432ce60 ML |
1603 | case ODDPARITY: |
1604 | config->parity = SP_PARITY_ODD; | |
1605 | break; | |
067417af ML |
1606 | case EVENPARITY: |
1607 | config->parity = SP_PARITY_EVEN; | |
1608 | break; | |
e432ce60 ML |
1609 | case MARKPARITY: |
1610 | config->parity = SP_PARITY_MARK; | |
1611 | break; | |
1612 | case SPACEPARITY: | |
1613 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1614 | break; |
1615 | default: | |
1616 | config->parity = -1; | |
1617 | } | |
1618 | else | |
1619 | config->parity = SP_PARITY_NONE; | |
1620 | ||
e33ab9aa | 1621 | switch (data->dcb.StopBits) { |
067417af ML |
1622 | case ONESTOPBIT: |
1623 | config->stopbits = 1; | |
1624 | break; | |
1625 | case TWOSTOPBITS: | |
1626 | config->stopbits = 2; | |
1627 | break; | |
1628 | default: | |
1629 | config->stopbits = -1; | |
1630 | } | |
1631 | ||
e33ab9aa | 1632 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1633 | case RTS_CONTROL_DISABLE: |
1634 | config->rts = SP_RTS_OFF; | |
1635 | break; | |
1636 | case RTS_CONTROL_ENABLE: | |
1637 | config->rts = SP_RTS_ON; | |
1638 | break; | |
1639 | case RTS_CONTROL_HANDSHAKE: | |
1640 | config->rts = SP_RTS_FLOW_CONTROL; | |
1641 | break; | |
1642 | default: | |
1643 | config->rts = -1; | |
067417af ML |
1644 | } |
1645 | ||
e33ab9aa | 1646 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1647 | |
e33ab9aa | 1648 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1649 | case DTR_CONTROL_DISABLE: |
1650 | config->dtr = SP_DTR_OFF; | |
1651 | break; | |
1652 | case DTR_CONTROL_ENABLE: | |
1653 | config->dtr = SP_DTR_ON; | |
1654 | break; | |
1655 | case DTR_CONTROL_HANDSHAKE: | |
1656 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1657 | break; | |
1658 | default: | |
1659 | config->dtr = -1; | |
067417af ML |
1660 | } |
1661 | ||
e33ab9aa ML |
1662 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1663 | ||
c6754b45 ML |
1664 | if (data->dcb.fInX) { |
1665 | if (data->dcb.fOutX) | |
1666 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1667 | else | |
1668 | config->xon_xoff = SP_XONXOFF_IN; | |
1669 | } else { | |
1670 | if (data->dcb.fOutX) | |
1671 | config->xon_xoff = SP_XONXOFF_OUT; | |
1672 | else | |
1673 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1674 | } | |
1675 | ||
e33ab9aa ML |
1676 | #else // !_WIN32 |
1677 | ||
1678 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1679 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1680 | |
1681 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1682 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1683 | |
1684 | #ifdef USE_TERMIOX | |
68ec29db ML |
1685 | int ret = get_flow(port->fd, &data->flow); |
1686 | ||
1687 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1688 | data->termiox_supported = 0; | |
1689 | else if (ret < 0) | |
c33efc48 | 1690 | RETURN_CODEVAL(ret); |
68ec29db ML |
1691 | else |
1692 | data->termiox_supported = 1; | |
1693 | #else | |
1694 | data->termiox_supported = 0; | |
40978c2b ML |
1695 | #endif |
1696 | ||
067417af | 1697 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1698 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1699 | config->baudrate = std_baudrates[i].value; |
1700 | break; | |
1701 | } | |
1702 | } | |
1703 | ||
31b3a8f5 MH |
1704 | if (i == NUM_STD_BAUDRATES) { |
1705 | #ifdef __APPLE__ | |
1706 | config->baudrate = (int)data->term.c_ispeed; | |
7a6d2196 ML |
1707 | #elif defined(__linux__) |
1708 | TRY(get_baudrate(port->fd, &config->baudrate)); | |
31b3a8f5 | 1709 | #else |
067417af | 1710 | config->baudrate = -1; |
31b3a8f5 MH |
1711 | #endif |
1712 | } | |
067417af | 1713 | |
e33ab9aa | 1714 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1715 | case CS8: |
1716 | config->bits = 8; | |
1717 | break; | |
1718 | case CS7: | |
1719 | config->bits = 7; | |
1720 | break; | |
1721 | case CS6: | |
1722 | config->bits = 6; | |
1723 | break; | |
1724 | case CS5: | |
1725 | config->bits = 5; | |
1726 | break; | |
1727 | default: | |
1728 | config->bits = -1; | |
1729 | } | |
1730 | ||
e33ab9aa | 1731 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1732 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1733 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1734 | config->parity = -1; |
c3e05092 | 1735 | #ifdef CMSPAR |
e432ce60 ML |
1736 | else if (data->term.c_cflag & CMSPAR) |
1737 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1738 | #endif |
067417af | 1739 | else |
e33ab9aa | 1740 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1741 | |
e33ab9aa | 1742 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1743 | |
e33ab9aa | 1744 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1745 | config->rts = SP_RTS_FLOW_CONTROL; |
1746 | config->cts = SP_CTS_FLOW_CONTROL; | |
1747 | } else { | |
68ec29db | 1748 | if (data->termiox_supported && data->flow & RTS_FLOW) |
40978c2b ML |
1749 | config->rts = SP_RTS_FLOW_CONTROL; |
1750 | else | |
1751 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1752 | ||
68ec29db ML |
1753 | config->cts = (data->termiox_supported && data->flow & CTS_FLOW) ? |
1754 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; | |
067417af ML |
1755 | } |
1756 | ||
68ec29db | 1757 | if (data->termiox_supported && data->flow & DTR_FLOW) |
40978c2b ML |
1758 | config->dtr = SP_DTR_FLOW_CONTROL; |
1759 | else | |
1760 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1761 | ||
68ec29db ML |
1762 | config->dsr = (data->termiox_supported && data->flow & DSR_FLOW) ? |
1763 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; | |
705bdc69 | 1764 | |
e29b93a5 ML |
1765 | if (data->term.c_iflag & IXOFF) { |
1766 | if (data->term.c_iflag & IXON) | |
1767 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1768 | else | |
1769 | config->xon_xoff = SP_XONXOFF_IN; | |
1770 | } else { | |
1771 | if (data->term.c_iflag & IXON) | |
1772 | config->xon_xoff = SP_XONXOFF_OUT; | |
1773 | else | |
1774 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1775 | } | |
067417af ML |
1776 | #endif |
1777 | ||
c33efc48 | 1778 | RETURN_OK(); |
067417af ML |
1779 | } |
1780 | ||
7a6d2196 | 1781 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1782 | const struct sp_port_config *config) |
18fc2dd1 | 1783 | { |
e33ab9aa | 1784 | unsigned int i; |
31b3a8f5 MH |
1785 | #ifdef __APPLE__ |
1786 | BAUD_TYPE baud_nonstd; | |
1787 | ||
1788 | baud_nonstd = B0; | |
1789 | #endif | |
7a6d2196 ML |
1790 | #ifdef __linux__ |
1791 | int baud_nonstd = 0; | |
1792 | #endif | |
18fc2dd1 | 1793 | |
c33efc48 ML |
1794 | TRACE("%p, %p, %p", port, data, config); |
1795 | ||
ea667be7 ML |
1796 | DEBUG("Setting configuration for port %s", port->name); |
1797 | ||
e33ab9aa | 1798 | #ifdef _WIN32 |
eac329d2 | 1799 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1800 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1801 | if (config->baudrate == std_baudrates[i].value) { | |
1802 | data->dcb.BaudRate = std_baudrates[i].index; | |
1803 | break; | |
1804 | } | |
1805 | } | |
18fc2dd1 | 1806 | |
e33ab9aa ML |
1807 | if (i == NUM_STD_BAUDRATES) |
1808 | data->dcb.BaudRate = config->baudrate; | |
1809 | } | |
18fc2dd1 | 1810 | |
e33ab9aa ML |
1811 | if (config->bits >= 0) |
1812 | data->dcb.ByteSize = config->bits; | |
1813 | ||
1814 | if (config->parity >= 0) { | |
1815 | switch (config->parity) { | |
e33ab9aa ML |
1816 | case SP_PARITY_NONE: |
1817 | data->dcb.Parity = NOPARITY; | |
1818 | break; | |
e432ce60 ML |
1819 | case SP_PARITY_ODD: |
1820 | data->dcb.Parity = ODDPARITY; | |
1821 | break; | |
e33ab9aa ML |
1822 | case SP_PARITY_EVEN: |
1823 | data->dcb.Parity = EVENPARITY; | |
1824 | break; | |
e432ce60 ML |
1825 | case SP_PARITY_MARK: |
1826 | data->dcb.Parity = MARKPARITY; | |
1827 | break; | |
1828 | case SP_PARITY_SPACE: | |
1829 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1830 | break; |
1831 | default: | |
c33efc48 | 1832 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1833 | } |
18fc2dd1 ML |
1834 | } |
1835 | ||
e33ab9aa ML |
1836 | if (config->stopbits >= 0) { |
1837 | switch (config->stopbits) { | |
1838 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1839 | case 1: | |
1840 | data->dcb.StopBits = ONESTOPBIT; | |
1841 | break; | |
1842 | case 2: | |
1843 | data->dcb.StopBits = TWOSTOPBITS; | |
1844 | break; | |
1845 | default: | |
c33efc48 | 1846 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1847 | } |
1848 | } | |
1849 | ||
1850 | if (config->rts >= 0) { | |
1851 | switch (config->rts) { | |
1852 | case SP_RTS_OFF: | |
1853 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1854 | break; | |
1855 | case SP_RTS_ON: | |
1856 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1857 | break; | |
1858 | case SP_RTS_FLOW_CONTROL: | |
1859 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1860 | break; | |
1861 | default: | |
c33efc48 | 1862 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1863 | } |
1864 | } | |
1865 | ||
1866 | if (config->cts >= 0) { | |
1867 | switch (config->cts) { | |
1868 | case SP_CTS_IGNORE: | |
1869 | data->dcb.fOutxCtsFlow = FALSE; | |
1870 | break; | |
1871 | case SP_CTS_FLOW_CONTROL: | |
1872 | data->dcb.fOutxCtsFlow = TRUE; | |
1873 | break; | |
1874 | default: | |
c33efc48 | 1875 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1876 | } |
1877 | } | |
1878 | ||
1879 | if (config->dtr >= 0) { | |
1880 | switch (config->dtr) { | |
1881 | case SP_DTR_OFF: | |
1882 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1883 | break; | |
1884 | case SP_DTR_ON: | |
1885 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1886 | break; | |
1887 | case SP_DTR_FLOW_CONTROL: | |
1888 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1889 | break; | |
1890 | default: | |
c33efc48 | 1891 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1892 | } |
1893 | } | |
1894 | ||
1895 | if (config->dsr >= 0) { | |
1896 | switch (config->dsr) { | |
1897 | case SP_DSR_IGNORE: | |
1898 | data->dcb.fOutxDsrFlow = FALSE; | |
1899 | break; | |
1900 | case SP_DSR_FLOW_CONTROL: | |
1901 | data->dcb.fOutxDsrFlow = TRUE; | |
1902 | break; | |
1903 | default: | |
c33efc48 | 1904 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1905 | } |
18fc2dd1 ML |
1906 | } |
1907 | ||
e33ab9aa ML |
1908 | if (config->xon_xoff >= 0) { |
1909 | switch (config->xon_xoff) { | |
1910 | case SP_XONXOFF_DISABLED: | |
1911 | data->dcb.fInX = FALSE; | |
1912 | data->dcb.fOutX = FALSE; | |
1913 | break; | |
1914 | case SP_XONXOFF_IN: | |
1915 | data->dcb.fInX = TRUE; | |
1916 | data->dcb.fOutX = FALSE; | |
1917 | break; | |
1918 | case SP_XONXOFF_OUT: | |
1919 | data->dcb.fInX = FALSE; | |
1920 | data->dcb.fOutX = TRUE; | |
1921 | break; | |
1922 | case SP_XONXOFF_INOUT: | |
1923 | data->dcb.fInX = TRUE; | |
1924 | data->dcb.fOutX = TRUE; | |
1925 | break; | |
1926 | default: | |
c33efc48 | 1927 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1928 | } |
1929 | } | |
1930 | ||
1931 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1932 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1933 | |
31b3a8f5 | 1934 | #else /* !_WIN32 */ |
e33ab9aa | 1935 | |
7a6d2196 ML |
1936 | int controlbits; |
1937 | ||
eac329d2 | 1938 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1939 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1940 | if (config->baudrate == std_baudrates[i].value) { | |
1941 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1942 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1943 | |
1944 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1945 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1946 | break; |
1947 | } | |
1948 | } | |
1949 | ||
31b3a8f5 MH |
1950 | /* Non-standard baud rate */ |
1951 | if (i == NUM_STD_BAUDRATES) { | |
1952 | #ifdef __APPLE__ | |
24abdb68 | 1953 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1954 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1955 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1956 | baud_nonstd = config->baudrate; |
7a6d2196 ML |
1957 | #elif defined(__linux__) |
1958 | baud_nonstd = 1; | |
31b3a8f5 | 1959 | #else |
c33efc48 | 1960 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1961 | #endif |
1962 | } | |
e33ab9aa ML |
1963 | } |
1964 | ||
1965 | if (config->bits >= 0) { | |
1966 | data->term.c_cflag &= ~CSIZE; | |
1967 | switch (config->bits) { | |
1968 | case 8: | |
1969 | data->term.c_cflag |= CS8; | |
1970 | break; | |
1971 | case 7: | |
1972 | data->term.c_cflag |= CS7; | |
1973 | break; | |
1974 | case 6: | |
1975 | data->term.c_cflag |= CS6; | |
1976 | break; | |
23922313 UH |
1977 | case 5: |
1978 | data->term.c_cflag |= CS5; | |
1979 | break; | |
e33ab9aa | 1980 | default: |
c33efc48 | 1981 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1982 | } |
1983 | } | |
1984 | ||
1985 | if (config->parity >= 0) { | |
1986 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1987 | data->term.c_cflag &= ~(PARENB | PARODD); |
1988 | #ifdef CMSPAR | |
1989 | data->term.c_cflag &= ~CMSPAR; | |
1990 | #endif | |
e33ab9aa ML |
1991 | switch (config->parity) { |
1992 | case SP_PARITY_NONE: | |
1993 | data->term.c_iflag |= IGNPAR; | |
1994 | break; | |
1995 | case SP_PARITY_EVEN: | |
1996 | data->term.c_cflag |= PARENB; | |
1997 | break; | |
1998 | case SP_PARITY_ODD: | |
1999 | data->term.c_cflag |= PARENB | PARODD; | |
2000 | break; | |
afb518f0 | 2001 | #ifdef CMSPAR |
e432ce60 | 2002 | case SP_PARITY_MARK: |
c3e05092 | 2003 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 2004 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
2005 | break; |
2006 | case SP_PARITY_SPACE: | |
c3e05092 | 2007 | data->term.c_cflag |= PARENB; |
c3e05092 | 2008 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 2009 | break; |
afb518f0 ML |
2010 | #else |
2011 | case SP_PARITY_MARK: | |
2012 | case SP_PARITY_SPACE: | |
2013 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
2014 | #endif | |
e33ab9aa | 2015 | default: |
c33efc48 | 2016 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
2017 | } |
2018 | } | |
2019 | ||
2020 | if (config->stopbits >= 0) { | |
2021 | data->term.c_cflag &= ~CSTOPB; | |
2022 | switch (config->stopbits) { | |
2023 | case 1: | |
2024 | data->term.c_cflag &= ~CSTOPB; | |
2025 | break; | |
2026 | case 2: | |
2027 | data->term.c_cflag |= CSTOPB; | |
2028 | break; | |
2029 | default: | |
c33efc48 | 2030 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
2031 | } |
2032 | } | |
2033 | ||
eac329d2 | 2034 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db ML |
2035 | if (data->termiox_supported) { |
2036 | data->flow &= ~(RTS_FLOW | CTS_FLOW); | |
2037 | switch (config->rts) { | |
2038 | case SP_RTS_OFF: | |
2039 | case SP_RTS_ON: | |
2040 | controlbits = TIOCM_RTS; | |
2041 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2042 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
2043 | break; |
2044 | case SP_RTS_FLOW_CONTROL: | |
2045 | data->flow |= RTS_FLOW; | |
2046 | break; | |
2047 | default: | |
2048 | break; | |
e33ab9aa | 2049 | } |
68ec29db ML |
2050 | if (config->cts == SP_CTS_FLOW_CONTROL) |
2051 | data->flow |= CTS_FLOW; | |
e33ab9aa | 2052 | |
68ec29db | 2053 | if (data->flow & (RTS_FLOW | CTS_FLOW)) |
e33ab9aa | 2054 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
2055 | else |
2056 | data->term.c_iflag &= ~CRTSCTS; | |
2057 | } else { | |
2058 | /* Asymmetric use of RTS/CTS not supported. */ | |
2059 | if (data->term.c_iflag & CRTSCTS) { | |
2060 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
2061 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
2062 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 2063 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
2064 | } |
2065 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
2066 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 2067 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 2068 | } |
e33ab9aa | 2069 | } else { |
68ec29db ML |
2070 | /* Flow control can only be enabled for both RTS & CTS together. */ |
2071 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
2072 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 2073 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
2074 | } |
2075 | ||
2076 | if (config->rts >= 0) { | |
2077 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
2078 | data->term.c_iflag |= CRTSCTS; | |
2079 | } else { | |
2080 | controlbits = TIOCM_RTS; | |
2081 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
2082 | &controlbits) < 0) | |
c33efc48 | 2083 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 2084 | } |
e33ab9aa ML |
2085 | } |
2086 | } | |
2087 | } | |
2088 | ||
eac329d2 | 2089 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db ML |
2090 | if (data->termiox_supported) { |
2091 | data->flow &= ~(DTR_FLOW | DSR_FLOW); | |
2092 | switch (config->dtr) { | |
2093 | case SP_DTR_OFF: | |
2094 | case SP_DTR_ON: | |
2095 | controlbits = TIOCM_DTR; | |
2096 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 2097 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
2098 | break; |
2099 | case SP_DTR_FLOW_CONTROL: | |
2100 | data->flow |= DTR_FLOW; | |
2101 | break; | |
2102 | default: | |
2103 | break; | |
2104 | } | |
2105 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
2106 | data->flow |= DSR_FLOW; | |
2107 | } else { | |
2108 | /* DTR/DSR flow control not supported. */ | |
2109 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 2110 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 2111 | |
68ec29db ML |
2112 | if (config->dtr >= 0) { |
2113 | controlbits = TIOCM_DTR; | |
2114 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
2115 | &controlbits) < 0) | |
c33efc48 | 2116 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 2117 | } |
e33ab9aa ML |
2118 | } |
2119 | } | |
2120 | ||
2121 | if (config->xon_xoff >= 0) { | |
2122 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
2123 | switch (config->xon_xoff) { | |
2124 | case SP_XONXOFF_DISABLED: | |
2125 | break; | |
2126 | case SP_XONXOFF_IN: | |
2127 | data->term.c_iflag |= IXOFF; | |
2128 | break; | |
2129 | case SP_XONXOFF_OUT: | |
2130 | data->term.c_iflag |= IXON | IXANY; | |
2131 | break; | |
2132 | case SP_XONXOFF_INOUT: | |
2133 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
2134 | break; | |
2135 | default: | |
c33efc48 | 2136 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
2137 | } |
2138 | } | |
2139 | ||
3f5c06d0 | 2140 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 2141 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
2142 | |
2143 | #ifdef __APPLE__ | |
2144 | if (baud_nonstd != B0) { | |
2145 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 2146 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
2147 | /* Set baud rates in data->term to correct, but incompatible |
2148 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
2149 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 2150 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 2151 | } |
7a6d2196 ML |
2152 | #elif defined(__linux__) |
2153 | if (baud_nonstd) | |
2154 | TRY(set_baudrate(port->fd, config->baudrate)); | |
40978c2b | 2155 | #ifdef USE_TERMIOX |
68ec29db ML |
2156 | if (data->termiox_supported) |
2157 | TRY(set_flow(port->fd, data->flow)); | |
40978c2b | 2158 | #endif |
7a6d2196 | 2159 | #endif |
31b3a8f5 MH |
2160 | |
2161 | #endif /* !_WIN32 */ | |
e33ab9aa | 2162 | |
c33efc48 | 2163 | RETURN_OK(); |
e33ab9aa ML |
2164 | } |
2165 | ||
9b1502ef ML |
2166 | enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
2167 | { | |
59131d60 | 2168 | struct sp_port_config *config; |
9b1502ef | 2169 | |
00d8c56d UH |
2170 | TRACE("%p", config_ptr); |
2171 | ||
9b1502ef ML |
2172 | if (!config_ptr) |
2173 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
2174 | ||
59131d60 ML |
2175 | *config_ptr = NULL; |
2176 | ||
2177 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
9b1502ef ML |
2178 | RETURN_ERROR(SP_ERR_MEM, "config malloc failed"); |
2179 | ||
59131d60 ML |
2180 | config->baudrate = -1; |
2181 | config->bits = -1; | |
2182 | config->parity = -1; | |
2183 | config->stopbits = -1; | |
2184 | config->rts = -1; | |
2185 | config->cts = -1; | |
2186 | config->dtr = -1; | |
2187 | config->dsr = -1; | |
2188 | ||
2189 | *config_ptr = config; | |
2190 | ||
9b1502ef ML |
2191 | RETURN_OK(); |
2192 | } | |
2193 | ||
2194 | void sp_free_config(struct sp_port_config *config) | |
2195 | { | |
2196 | TRACE("%p", config); | |
2197 | ||
2198 | if (!config) | |
2199 | DEBUG("Null config"); | |
2200 | else | |
2201 | free(config); | |
2202 | ||
2203 | RETURN(); | |
2204 | } | |
2205 | ||
70cd37de ML |
2206 | enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config) |
2207 | { | |
2208 | struct port_data data; | |
2209 | ||
2210 | TRACE("%p, %p", port, config); | |
2211 | ||
2212 | CHECK_OPEN_PORT(); | |
2213 | ||
2214 | if (!config) | |
9b1502ef | 2215 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
2216 | |
2217 | TRY(get_config(port, &data, config)); | |
2218 | ||
2219 | RETURN_OK(); | |
2220 | } | |
2221 | ||
eb6ed20f | 2222 | enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config) |
e33ab9aa | 2223 | { |
8f189c4c | 2224 | struct port_data data; |
e33ab9aa ML |
2225 | struct sp_port_config prev_config; |
2226 | ||
c33efc48 ML |
2227 | TRACE("%p, %p", port, config); |
2228 | ||
dec10e31 | 2229 | CHECK_OPEN_PORT(); |
823690ae ML |
2230 | |
2231 | if (!config) | |
c33efc48 | 2232 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 2233 | |
e33ab9aa ML |
2234 | TRY(get_config(port, &data, &prev_config)); |
2235 | TRY(set_config(port, &data, config)); | |
74510d4b | 2236 | |
c33efc48 | 2237 | RETURN_OK(); |
74510d4b ML |
2238 | } |
2239 | ||
9b1502ef ML |
2240 | #define CREATE_ACCESSORS(x, type) \ |
2241 | enum sp_return sp_set_##x(struct sp_port *port, type x) { \ | |
8f189c4c | 2242 | struct port_data data; \ |
e33ab9aa | 2243 | struct sp_port_config config; \ |
c33efc48 | 2244 | TRACE("%p, %d", port, x); \ |
dec10e31 | 2245 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
2246 | TRY(get_config(port, &data, &config)); \ |
2247 | config.x = x; \ | |
2248 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 2249 | RETURN_OK(); \ |
9b1502ef ML |
2250 | } \ |
2251 | enum sp_return sp_get_config_##x(const struct sp_port_config *config, type *x) { \ | |
00d8c56d | 2252 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2253 | if (!config) \ |
2254 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2255 | *x = config->x; \ | |
2256 | RETURN_OK(); \ | |
2257 | } \ | |
2258 | enum sp_return sp_set_config_##x(struct sp_port_config *config, type x) { \ | |
2259 | TRACE("%p, %d", config, x); \ | |
2260 | if (!config) \ | |
2261 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2262 | config->x = x; \ | |
2263 | RETURN_OK(); \ | |
9069c2fb ML |
2264 | } |
2265 | ||
9b1502ef ML |
2266 | CREATE_ACCESSORS(baudrate, int) |
2267 | CREATE_ACCESSORS(bits, int) | |
2268 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2269 | CREATE_ACCESSORS(stopbits, int) | |
2270 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2271 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2272 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2273 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2274 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2275 | ||
2276 | enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2277 | { |
9b1502ef ML |
2278 | if (!config) |
2279 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2280 | |
2281 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2282 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2283 | |
e33ab9aa | 2284 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2285 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2286 | else |
9b1502ef | 2287 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2288 | |
2289 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2290 | config->rts = SP_RTS_FLOW_CONTROL; |
2291 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2292 | } else { |
9b1502ef ML |
2293 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2294 | config->rts = SP_RTS_ON; | |
2295 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2296 | } |
2297 | ||
2298 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2299 | config->dtr = SP_DTR_FLOW_CONTROL; |
2300 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2301 | } else { |
9b1502ef ML |
2302 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2303 | config->dtr = SP_DTR_ON; | |
2304 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2305 | } |
2306 | ||
9b1502ef ML |
2307 | RETURN_OK(); |
2308 | } | |
2309 | ||
2310 | enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol) | |
2311 | { | |
2312 | struct port_data data; | |
2313 | struct sp_port_config config; | |
2314 | ||
2315 | TRACE("%p, %d", port, flowcontrol); | |
2316 | ||
2317 | CHECK_OPEN_PORT(); | |
2318 | ||
2319 | TRY(get_config(port, &data, &config)); | |
2320 | ||
2321 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2322 | ||
e33ab9aa ML |
2323 | TRY(set_config(port, &data, &config)); |
2324 | ||
c33efc48 | 2325 | RETURN_OK(); |
e33ab9aa ML |
2326 | } |
2327 | ||
8cf7c697 ML |
2328 | enum sp_return sp_get_signals(struct sp_port *port, enum sp_signal *signals) |
2329 | { | |
c33efc48 ML |
2330 | TRACE("%p, %p", port, signals); |
2331 | ||
dec10e31 | 2332 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2333 | |
2334 | if (!signals) | |
c33efc48 | 2335 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2336 | |
ea667be7 ML |
2337 | DEBUG("Getting control signals for port %s", port->name); |
2338 | ||
8cf7c697 ML |
2339 | *signals = 0; |
2340 | #ifdef _WIN32 | |
2341 | DWORD bits; | |
2342 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2343 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2344 | if (bits & MS_CTS_ON) |
2345 | *signals |= SP_SIG_CTS; | |
2346 | if (bits & MS_DSR_ON) | |
2347 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2348 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2349 | *signals |= SP_SIG_DCD; |
2350 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2351 | *signals |= SP_SIG_RI; |
2352 | #else | |
2353 | int bits; | |
2354 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2355 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2356 | if (bits & TIOCM_CTS) |
2357 | *signals |= SP_SIG_CTS; | |
2358 | if (bits & TIOCM_DSR) | |
2359 | *signals |= SP_SIG_DSR; | |
2360 | if (bits & TIOCM_CAR) | |
2361 | *signals |= SP_SIG_DCD; | |
2362 | if (bits & TIOCM_RNG) | |
2363 | *signals |= SP_SIG_RI; | |
2364 | #endif | |
c33efc48 | 2365 | RETURN_OK(); |
8cf7c697 ML |
2366 | } |
2367 | ||
90cc3ee6 ML |
2368 | enum sp_return sp_start_break(struct sp_port *port) |
2369 | { | |
c33efc48 ML |
2370 | TRACE("%p", port); |
2371 | ||
dec10e31 | 2372 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2373 | #ifdef _WIN32 |
2374 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2375 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2376 | #else |
2377 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2378 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2379 | #endif |
2380 | ||
c33efc48 | 2381 | RETURN_OK(); |
90cc3ee6 ML |
2382 | } |
2383 | ||
2384 | enum sp_return sp_end_break(struct sp_port *port) | |
2385 | { | |
c33efc48 ML |
2386 | TRACE("%p", port); |
2387 | ||
dec10e31 | 2388 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2389 | #ifdef _WIN32 |
2390 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2391 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2392 | #else |
2393 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2394 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2395 | #endif |
2396 | ||
c33efc48 | 2397 | RETURN_OK(); |
90cc3ee6 ML |
2398 | } |
2399 | ||
74510d4b ML |
2400 | int sp_last_error_code(void) |
2401 | { | |
c33efc48 | 2402 | TRACE(""); |
74510d4b | 2403 | #ifdef _WIN32 |
c33efc48 | 2404 | RETURN_VALUE("%d", GetLastError()); |
74510d4b | 2405 | #else |
c33efc48 | 2406 | RETURN_VALUE("%d", errno); |
74510d4b ML |
2407 | #endif |
2408 | } | |
2409 | ||
74510d4b ML |
2410 | char *sp_last_error_message(void) |
2411 | { | |
c33efc48 ML |
2412 | TRACE(""); |
2413 | ||
74510d4b ML |
2414 | #ifdef _WIN32 |
2415 | LPVOID message; | |
2416 | DWORD error = GetLastError(); | |
2417 | ||
2418 | FormatMessage( | |
2419 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2420 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2421 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2422 | NULL, | |
2423 | error, | |
2424 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2425 | (LPTSTR) &message, | |
2426 | 0, NULL ); | |
2427 | ||
c33efc48 | 2428 | RETURN_VALUE("%s", message); |
74510d4b | 2429 | #else |
c33efc48 | 2430 | RETURN_VALUE("%s", strerror(errno)); |
74510d4b ML |
2431 | #endif |
2432 | } | |
2433 | ||
74510d4b ML |
2434 | void sp_free_error_message(char *message) |
2435 | { | |
c33efc48 ML |
2436 | TRACE("%s", message); |
2437 | ||
74510d4b ML |
2438 | #ifdef _WIN32 |
2439 | LocalFree(message); | |
64eec30d ML |
2440 | #else |
2441 | (void)message; | |
74510d4b | 2442 | #endif |
c33efc48 ML |
2443 | |
2444 | RETURN(); | |
74510d4b | 2445 | } |
863b35e6 ML |
2446 | |
2447 | void sp_set_debug_handler(void (*handler)(const char *format, ...)) | |
2448 | { | |
c33efc48 ML |
2449 | TRACE("%p", handler); |
2450 | ||
863b35e6 | 2451 | sp_debug_handler = handler; |
c33efc48 ML |
2452 | |
2453 | RETURN(); | |
863b35e6 ML |
2454 | } |
2455 | ||
2456 | void sp_default_debug_handler(const char *format, ...) | |
2457 | { | |
2458 | va_list args; | |
2459 | va_start(args, format); | |
2460 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2461 | fputs("sp: ", stderr); |
863b35e6 ML |
2462 | vfprintf(stderr, format, args); |
2463 | } | |
2464 | va_end(args); | |
2465 | } |