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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 |
74510d4b ML |
37 | #include <termios.h> |
38 | #include <sys/ioctl.h> | |
39 | #endif | |
3b63f34d | 40 | #ifdef __APPLE__ |
1ebf4347 ML |
41 | #include <IOKit/IOKitLib.h> |
42 | #include <IOKit/serial/IOSerialKeys.h> | |
31b3a8f5 | 43 | #include <IOKit/serial/ioss.h> |
1ebf4347 | 44 | #include <sys/syslimits.h> |
3b63f34d ML |
45 | #endif |
46 | #ifdef __linux__ | |
47 | #include "libudev.h" | |
4b97c9fc | 48 | #include "linux/serial.h" |
7a6d2196 | 49 | #include "linux_termios.h" |
40978c2b | 50 | #if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX) |
68ec29db | 51 | #define USE_TERMIOX |
40978c2b | 52 | #endif |
3b63f34d | 53 | #endif |
74510d4b | 54 | |
71c8a9b9 UH |
55 | #ifndef _WIN32 |
56 | #include "linux_termios.h" | |
57 | #endif | |
58 | ||
f6a1fb65 | 59 | #include "libserialport.h" |
74510d4b | 60 | |
1c5aae9d ML |
61 | struct sp_port { |
62 | char *name; | |
63 | #ifdef _WIN32 | |
64 | HANDLE hdl; | |
65 | #else | |
66 | int fd; | |
67 | #endif | |
68 | }; | |
69 | ||
8f189c4c | 70 | struct port_data { |
8094e4a0 ML |
71 | #ifdef _WIN32 |
72 | DCB dcb; | |
73 | #else | |
74 | struct termios term; | |
824dcb45 | 75 | int controlbits; |
68ec29db | 76 | int termiox_supported; |
40978c2b ML |
77 | int flow; |
78 | #endif | |
8094e4a0 ML |
79 | }; |
80 | ||
da2748bf ML |
81 | /* Standard baud rates. */ |
82 | #ifdef _WIN32 | |
83 | #define BAUD_TYPE DWORD | |
84 | #define BAUD(n) {CBR_##n, n} | |
85 | #else | |
86 | #define BAUD_TYPE speed_t | |
87 | #define BAUD(n) {B##n, n} | |
88 | #endif | |
89 | ||
90 | struct std_baudrate { | |
91 | BAUD_TYPE index; | |
92 | int value; | |
93 | }; | |
94 | ||
95 | const struct std_baudrate std_baudrates[] = { | |
96 | #ifdef _WIN32 | |
97 | /* | |
98 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
99 | * have documented CBR_* macros. | |
100 | */ | |
101 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
102 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 103 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 104 | #else |
eac329d2 UH |
105 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
106 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
107 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
108 | BAUD(230400), | |
da2748bf | 109 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 110 | BAUD(460800), |
da2748bf ML |
111 | #endif |
112 | #endif | |
113 | }; | |
114 | ||
863b35e6 ML |
115 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
116 | ||
da2748bf ML |
117 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
118 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) | |
119 | ||
92f756f8 ML |
120 | /* Debug output macros. */ |
121 | #define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0) | |
122 | #define DEBUG_ERROR(err, msg) DEBUG("%s returning " #err ": " msg, __func__) | |
123 | #define DEBUG_FAIL(msg) do { \ | |
124 | char *errmsg = sp_last_error_message(); \ | |
125 | DEBUG("%s returning SP_ERR_FAIL: " msg ": %s", __func__, errmsg); \ | |
126 | sp_free_error_message(errmsg); \ | |
127 | } while (0); | |
128 | #define RETURN() do { DEBUG("%s returning", __func__); return; } while(0) | |
129 | #define RETURN_CODE(x) do { DEBUG("%s returning " #x, __func__); return x; } while (0) | |
130 | #define RETURN_CODEVAL(x) do { \ | |
131 | switch (x) { \ | |
132 | case SP_OK: RETURN_CODE(SP_OK); \ | |
133 | case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \ | |
134 | case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \ | |
135 | case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \ | |
136 | case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \ | |
137 | } \ | |
138 | } while (0) | |
139 | #define RETURN_OK() RETURN_CODE(SP_OK); | |
140 | #define RETURN_ERROR(err, msg) do { DEBUG_ERROR(err, msg); return err; } while (0) | |
141 | #define RETURN_FAIL(msg) do { DEBUG_FAIL(msg); return SP_ERR_FAIL; } while (0) | |
142 | #define RETURN_VALUE(fmt, x) do { DEBUG("%s returning " fmt, __func__, x); return x; } while (0) | |
143 | #define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0) | |
144 | #define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = err; } while (0) | |
145 | #define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__) | |
146 | ||
64690702 ML |
147 | #define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0) |
148 | ||
348e23cc | 149 | /* Helper functions. */ |
348e23cc | 150 | static struct sp_port **list_append(struct sp_port **list, const char *portname); |
eb6ed20f ML |
151 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
152 | struct sp_port_config *config); | |
153 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, | |
154 | const struct sp_port_config *config); | |
80186526 | 155 | |
eb6ed20f | 156 | enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
157 | { |
158 | struct sp_port *port; | |
5919c913 | 159 | int len; |
d54e9004 | 160 | |
c33efc48 ML |
161 | TRACE("%s, %p", portname, port_ptr); |
162 | ||
32b5ac05 | 163 | if (!port_ptr) |
c33efc48 | 164 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 165 | |
77f262c4 ML |
166 | *port_ptr = NULL; |
167 | ||
d4babed2 | 168 | if (!portname) |
c33efc48 | 169 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 170 | |
ea667be7 ML |
171 | DEBUG("Building structure for port %s", portname); |
172 | ||
d54e9004 | 173 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 174 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 175 | |
5919c913 ML |
176 | len = strlen(portname) + 1; |
177 | ||
eac329d2 | 178 | if (!(port->name = malloc(len))) { |
d54e9004 | 179 | free(port); |
c33efc48 | 180 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
181 | } |
182 | ||
183 | memcpy(port->name, portname, len); | |
184 | ||
8f471c66 ML |
185 | #ifdef _WIN32 |
186 | port->hdl = INVALID_HANDLE_VALUE; | |
187 | #else | |
188 | port->fd = -1; | |
189 | #endif | |
190 | ||
77f262c4 ML |
191 | *port_ptr = port; |
192 | ||
c33efc48 | 193 | RETURN_OK(); |
d54e9004 ML |
194 | } |
195 | ||
1c5aae9d ML |
196 | char *sp_get_port_name(const struct sp_port *port) |
197 | { | |
198 | TRACE("%p", port); | |
199 | ||
200 | if (!port) | |
201 | return NULL; | |
202 | ||
203 | RETURN_VALUE("%s", port->name); | |
204 | } | |
205 | ||
3c126654 ML |
206 | enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr) |
207 | { | |
208 | TRACE("%p", port); | |
209 | ||
210 | if (!port) | |
211 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
212 | ||
213 | #ifdef _WIN32 | |
214 | HANDLE *handle_ptr = result_ptr; | |
215 | *handle_ptr = port->hdl; | |
216 | #else | |
217 | int *fd_ptr = result_ptr; | |
218 | *fd_ptr = port->fd; | |
219 | #endif | |
220 | ||
221 | RETURN_OK(); | |
222 | } | |
223 | ||
eb6ed20f | 224 | enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr) |
32b5ac05 | 225 | { |
c33efc48 ML |
226 | TRACE("%p, %p", port, copy_ptr); |
227 | ||
32b5ac05 | 228 | if (!copy_ptr) |
c33efc48 | 229 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
230 | |
231 | *copy_ptr = NULL; | |
232 | ||
c33efc48 ML |
233 | if (!port) |
234 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
235 | ||
236 | if (!port->name) | |
237 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 238 | |
ea667be7 ML |
239 | DEBUG("Copying port structure"); |
240 | ||
c33efc48 | 241 | RETURN_VALUE("%p", sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
242 | } |
243 | ||
e3b2f7a4 ML |
244 | void sp_free_port(struct sp_port *port) |
245 | { | |
c33efc48 ML |
246 | TRACE("%p", port); |
247 | ||
e3b2f7a4 | 248 | if (!port) |
c33efc48 ML |
249 | { |
250 | DEBUG("Null port"); | |
251 | RETURN(); | |
252 | } | |
e3b2f7a4 | 253 | |
ea667be7 ML |
254 | DEBUG("Freeing port structure"); |
255 | ||
e3b2f7a4 ML |
256 | if (port->name) |
257 | free(port->name); | |
258 | ||
259 | free(port); | |
c33efc48 ML |
260 | |
261 | RETURN(); | |
e3b2f7a4 ML |
262 | } |
263 | ||
348e23cc | 264 | static struct sp_port **list_append(struct sp_port **list, const char *portname) |
3b63f34d ML |
265 | { |
266 | void *tmp; | |
267 | unsigned int count; | |
f92f1f0c | 268 | |
3b63f34d | 269 | for (count = 0; list[count]; count++); |
d54e9004 | 270 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
271 | goto fail; |
272 | list = tmp; | |
77f262c4 | 273 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 274 | goto fail; |
db2794ce | 275 | list[count + 1] = NULL; |
3b63f34d | 276 | return list; |
f92f1f0c | 277 | |
3b63f34d ML |
278 | fail: |
279 | sp_free_port_list(list); | |
280 | return NULL; | |
281 | } | |
282 | ||
eb6ed20f | 283 | enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 284 | { |
d54e9004 | 285 | struct sp_port **list; |
6b93ede4 | 286 | int ret = SP_ERR_SUPP; |
24c1a4bb | 287 | |
c33efc48 ML |
288 | TRACE("%p", list_ptr); |
289 | ||
dec10e31 ML |
290 | if (!list_ptr) |
291 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
292 | ||
ea667be7 ML |
293 | DEBUG("Enumerating ports"); |
294 | ||
d54e9004 | 295 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 296 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
297 | |
298 | list[0] = NULL; | |
3b63f34d ML |
299 | |
300 | #ifdef _WIN32 | |
301 | HKEY key; | |
bdfb5b8c ML |
302 | TCHAR *value, *data; |
303 | DWORD max_value_len, max_data_size, max_data_len; | |
304 | DWORD value_len, data_size, data_len; | |
3b63f34d | 305 | DWORD type, index = 0; |
8b532d9c ML |
306 | char *name; |
307 | int name_len; | |
3b63f34d | 308 | |
6b93ede4 ML |
309 | ret = SP_OK; |
310 | ||
ea667be7 | 311 | DEBUG("Opening registry key"); |
3b63f34d | 312 | if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"), |
eac329d2 | 313 | 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) { |
c33efc48 | 314 | SET_FAIL(ret, "RegOpenKeyEx() failed"); |
77f262c4 ML |
315 | goto out_done; |
316 | } | |
ea667be7 | 317 | DEBUG("Querying registry key value and data sizes"); |
3b63f34d | 318 | if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
eac329d2 | 319 | &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) { |
c33efc48 | 320 | SET_FAIL(ret, "RegQueryInfoKey() failed"); |
3b63f34d | 321 | goto out_close; |
77f262c4 | 322 | } |
3b63f34d | 323 | max_data_len = max_data_size / sizeof(TCHAR); |
eac329d2 | 324 | if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 325 | SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed"); |
3b63f34d | 326 | goto out_close; |
77f262c4 | 327 | } |
eac329d2 | 328 | if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 329 | SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed"); |
bdfb5b8c | 330 | goto out_free_value; |
77f262c4 | 331 | } |
ea667be7 | 332 | DEBUG("Iterating over values"); |
3b63f34d | 333 | while ( |
d9573bad | 334 | value_len = max_value_len + 1, |
3b63f34d | 335 | data_size = max_data_size, |
bdfb5b8c | 336 | RegEnumValue(key, index, value, &value_len, |
3b63f34d ML |
337 | NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS) |
338 | { | |
339 | data_len = data_size / sizeof(TCHAR); | |
340 | data[data_len] = '\0'; | |
8b532d9c ML |
341 | #ifdef UNICODE |
342 | name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL) | |
343 | #else | |
344 | name_len = data_len + 1; | |
345 | #endif | |
eac329d2 | 346 | if (!(name = malloc(name_len))) { |
c33efc48 | 347 | SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed"); |
8b532d9c | 348 | goto out; |
77f262c4 | 349 | } |
8b532d9c ML |
350 | #ifdef UNICODE |
351 | WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL); | |
352 | #else | |
353 | strcpy(name, data); | |
354 | #endif | |
c33efc48 ML |
355 | if (type == REG_SZ) { |
356 | DEBUG("Found port %s", name); | |
357 | if (!(list = list_append(list, name))) { | |
358 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
359 | goto out; | |
360 | } | |
77f262c4 | 361 | } |
3b63f34d ML |
362 | index++; |
363 | } | |
364 | out: | |
365 | free(data); | |
bdfb5b8c ML |
366 | out_free_value: |
367 | free(value); | |
3b63f34d ML |
368 | out_close: |
369 | RegCloseKey(key); | |
77f262c4 | 370 | out_done: |
3b63f34d ML |
371 | #endif |
372 | #ifdef __APPLE__ | |
373 | mach_port_t master; | |
374 | CFMutableDictionaryRef classes; | |
375 | io_iterator_t iter; | |
376 | char *path; | |
377 | io_object_t port; | |
378 | CFTypeRef cf_path; | |
379 | Boolean result; | |
380 | ||
6b93ede4 ML |
381 | ret = SP_OK; |
382 | ||
ea667be7 | 383 | DEBUG("Getting IOKit master port"); |
eac329d2 | 384 | if (IOMasterPort(MACH_PORT_NULL, &master) != KERN_SUCCESS) { |
c33efc48 | 385 | SET_FAIL(ret, "IOMasterPort() failed"); |
77f262c4 ML |
386 | goto out_done; |
387 | } | |
3b63f34d | 388 | |
ea667be7 | 389 | DEBUG("Creating matching dictionary"); |
eac329d2 | 390 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) { |
c33efc48 | 391 | SET_FAIL(ret, "IOServiceMatching() failed"); |
77f262c4 ML |
392 | goto out_done; |
393 | } | |
3b63f34d ML |
394 | |
395 | CFDictionarySetValue(classes, | |
396 | CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes)); | |
397 | ||
ea667be7 | 398 | DEBUG("Getting matching services"); |
eac329d2 | 399 | if (IOServiceGetMatchingServices(master, classes, &iter) != KERN_SUCCESS) { |
c33efc48 | 400 | SET_FAIL(ret, "IOServiceGetMatchingServices() failed"); |
77f262c4 ML |
401 | goto out_done; |
402 | } | |
3b63f34d | 403 | |
eac329d2 | 404 | if (!(path = malloc(PATH_MAX))) { |
c33efc48 | 405 | SET_ERROR(ret, SP_ERR_MEM, "device path malloc failed"); |
3b63f34d | 406 | goto out_release; |
77f262c4 | 407 | } |
3b63f34d | 408 | |
ea667be7 | 409 | DEBUG("Iterating over results"); |
1ebf4347 | 410 | while ((port = IOIteratorNext(iter))) { |
3b63f34d ML |
411 | cf_path = IORegistryEntryCreateCFProperty(port, |
412 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
413 | if (cf_path) { | |
414 | result = CFStringGetCString(cf_path, | |
415 | path, PATH_MAX, kCFStringEncodingASCII); | |
416 | CFRelease(cf_path); | |
c33efc48 ML |
417 | if (result) { |
418 | DEBUG("Found port %s", path); | |
419 | if (!(list = list_append(list, path))) { | |
420 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
421 | IOObjectRelease(port); | |
422 | goto out; | |
423 | } | |
77f262c4 | 424 | } |
3b63f34d ML |
425 | } |
426 | IOObjectRelease(port); | |
427 | } | |
3b63f34d ML |
428 | out: |
429 | free(path); | |
430 | out_release: | |
431 | IOObjectRelease(iter); | |
77f262c4 | 432 | out_done: |
3b63f34d ML |
433 | #endif |
434 | #ifdef __linux__ | |
435 | struct udev *ud; | |
436 | struct udev_enumerate *ud_enumerate; | |
437 | struct udev_list_entry *ud_list; | |
438 | struct udev_list_entry *ud_entry; | |
439 | const char *path; | |
08fe0bdb | 440 | struct udev_device *ud_dev, *ud_parent; |
3b63f34d | 441 | const char *name; |
4b97c9fc ML |
442 | const char *driver; |
443 | int fd, ioctl_result; | |
444 | struct serial_struct serial_info; | |
3b63f34d | 445 | |
6b93ede4 ML |
446 | ret = SP_OK; |
447 | ||
ea667be7 | 448 | DEBUG("Enumerating tty devices"); |
3b63f34d ML |
449 | ud = udev_new(); |
450 | ud_enumerate = udev_enumerate_new(ud); | |
451 | udev_enumerate_add_match_subsystem(ud_enumerate, "tty"); | |
452 | udev_enumerate_scan_devices(ud_enumerate); | |
453 | ud_list = udev_enumerate_get_list_entry(ud_enumerate); | |
ea667be7 | 454 | DEBUG("Iterating over results"); |
eac329d2 | 455 | udev_list_entry_foreach(ud_entry, ud_list) { |
3b63f34d | 456 | path = udev_list_entry_get_name(ud_entry); |
ea667be7 | 457 | DEBUG("Found device %s", path); |
3b63f34d | 458 | ud_dev = udev_device_new_from_syspath(ud, path); |
08fe0bdb ML |
459 | /* If there is no parent device, this is a virtual tty. */ |
460 | ud_parent = udev_device_get_parent(ud_dev); | |
eac329d2 | 461 | if (ud_parent == NULL) { |
ea667be7 | 462 | DEBUG("No parent device, assuming virtual tty"); |
08fe0bdb ML |
463 | udev_device_unref(ud_dev); |
464 | continue; | |
465 | } | |
3b63f34d | 466 | name = udev_device_get_devnode(ud_dev); |
4b97c9fc ML |
467 | /* The serial8250 driver has a hardcoded number of ports. |
468 | * The only way to tell which actually exist on a given system | |
469 | * is to try to open them and make an ioctl call. */ | |
470 | driver = udev_device_get_driver(ud_parent); | |
eac329d2 | 471 | if (driver && !strcmp(driver, "serial8250")) { |
ea667be7 ML |
472 | DEBUG("serial8250 device, attempting to open"); |
473 | if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) { | |
474 | DEBUG("open failed, skipping"); | |
4b97c9fc | 475 | goto skip; |
ea667be7 | 476 | } |
4b97c9fc ML |
477 | ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info); |
478 | close(fd); | |
ea667be7 ML |
479 | if (ioctl_result != 0) { |
480 | DEBUG("ioctl failed, skipping"); | |
4b97c9fc | 481 | goto skip; |
ea667be7 ML |
482 | } |
483 | if (serial_info.type == PORT_UNKNOWN) { | |
484 | DEBUG("port type is unknown, skipping"); | |
4b97c9fc | 485 | goto skip; |
ea667be7 | 486 | } |
4b97c9fc | 487 | } |
c33efc48 | 488 | DEBUG("Found port %s", name); |
348e23cc | 489 | list = list_append(list, name); |
4b97c9fc | 490 | skip: |
3b63f34d | 491 | udev_device_unref(ud_dev); |
eac329d2 | 492 | if (!list) { |
c33efc48 | 493 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); |
3b63f34d | 494 | goto out; |
77f262c4 | 495 | } |
3b63f34d ML |
496 | } |
497 | out: | |
498 | udev_enumerate_unref(ud_enumerate); | |
499 | udev_unref(ud); | |
3b63f34d | 500 | #endif |
77f262c4 | 501 | |
6b93ede4 ML |
502 | switch (ret) { |
503 | case SP_OK: | |
77f262c4 | 504 | *list_ptr = list; |
c33efc48 | 505 | RETURN_OK(); |
6b93ede4 ML |
506 | case SP_ERR_SUPP: |
507 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform."); | |
508 | default: | |
77f262c4 ML |
509 | if (list) |
510 | sp_free_port_list(list); | |
77f262c4 | 511 | *list_ptr = NULL; |
c33efc48 | 512 | return ret; |
77f262c4 | 513 | } |
3b63f34d ML |
514 | } |
515 | ||
d54e9004 | 516 | void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
517 | { |
518 | unsigned int i; | |
f92f1f0c | 519 | |
c33efc48 ML |
520 | TRACE("%p", list); |
521 | ||
dec10e31 ML |
522 | if (!list) { |
523 | DEBUG("Null list"); | |
524 | RETURN(); | |
525 | } | |
526 | ||
ea667be7 ML |
527 | DEBUG("Freeing port list"); |
528 | ||
3b63f34d | 529 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 530 | sp_free_port(list[i]); |
3b63f34d | 531 | free(list); |
c33efc48 ML |
532 | |
533 | RETURN(); | |
3b63f34d ML |
534 | } |
535 | ||
c33efc48 ML |
536 | #define CHECK_PORT() do { \ |
537 | if (port == NULL) \ | |
538 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
dec10e31 ML |
539 | if (port->name == NULL) \ |
540 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ | |
541 | } while (0) | |
542 | #ifdef _WIN32 | |
543 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
544 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
545 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 546 | } while (0) |
74510d4b | 547 | #else |
dec10e31 | 548 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
549 | if (port->fd < 0) \ |
550 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 551 | } while (0) |
74510d4b | 552 | #endif |
dec10e31 ML |
553 | #define CHECK_OPEN_PORT() do { \ |
554 | CHECK_PORT(); \ | |
555 | CHECK_PORT_HANDLE(); \ | |
556 | } while (0) | |
74510d4b | 557 | |
eb6ed20f | 558 | enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 559 | { |
c33efc48 ML |
560 | TRACE("%p, %x", port, flags); |
561 | ||
dec10e31 ML |
562 | CHECK_PORT(); |
563 | ||
564 | if (flags > (SP_MODE_READ | SP_MODE_WRITE | SP_MODE_NONBLOCK)) | |
565 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); | |
74510d4b | 566 | |
ea667be7 ML |
567 | DEBUG("Opening port %s", port->name); |
568 | ||
74510d4b ML |
569 | #ifdef _WIN32 |
570 | DWORD desired_access = 0, flags_and_attributes = 0; | |
99945a1f ML |
571 | char *escaped_port_name; |
572 | ||
573 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
574 | if (!(escaped_port_name = malloc(strlen(port->name + 5)))) | |
c33efc48 | 575 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
576 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
577 | ||
74510d4b | 578 | /* Map 'flags' to the OS-specific settings. */ |
74510d4b | 579 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL; |
a036341b ML |
580 | if (flags & SP_MODE_READ) |
581 | desired_access |= GENERIC_READ; | |
582 | if (flags & SP_MODE_WRITE) | |
74510d4b ML |
583 | desired_access |= GENERIC_WRITE; |
584 | if (flags & SP_MODE_NONBLOCK) | |
585 | flags_and_attributes |= FILE_FLAG_OVERLAPPED; | |
586 | ||
99945a1f | 587 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 588 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
589 | |
590 | free(escaped_port_name); | |
591 | ||
74510d4b | 592 | if (port->hdl == INVALID_HANDLE_VALUE) |
c33efc48 | 593 | RETURN_FAIL("CreateFile() failed"); |
74510d4b ML |
594 | #else |
595 | int flags_local = 0; | |
8f189c4c | 596 | struct port_data data; |
e33ab9aa ML |
597 | struct sp_port_config config; |
598 | int ret; | |
f92f1f0c | 599 | |
74510d4b | 600 | /* Map 'flags' to the OS-specific settings. */ |
a036341b | 601 | if (flags & (SP_MODE_READ | SP_MODE_WRITE)) |
74510d4b | 602 | flags_local |= O_RDWR; |
a036341b | 603 | else if (flags & SP_MODE_READ) |
74510d4b | 604 | flags_local |= O_RDONLY; |
a036341b ML |
605 | else if (flags & SP_MODE_WRITE) |
606 | flags_local |= O_WRONLY; | |
74510d4b ML |
607 | if (flags & SP_MODE_NONBLOCK) |
608 | flags_local |= O_NONBLOCK; | |
609 | ||
610 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 611 | RETURN_FAIL("open() failed"); |
9cb98459 | 612 | |
e33ab9aa ML |
613 | ret = get_config(port, &data, &config); |
614 | ||
eac329d2 | 615 | if (ret < 0) { |
e33ab9aa | 616 | sp_close(port); |
c33efc48 | 617 | RETURN_CODEVAL(ret); |
e33ab9aa | 618 | } |
9cb98459 ML |
619 | |
620 | /* Turn off all serial port cooking. */ | |
621 | data.term.c_iflag &= ~(ISTRIP | INLCR | ICRNL); | |
622 | data.term.c_oflag &= ~(ONLCR | OCRNL | ONOCR); | |
623 | #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) | |
624 | data.term.c_oflag &= ~OFILL; | |
625 | #endif | |
626 | /* Disable canonical mode, and don't echo input characters. */ | |
627 | data.term.c_lflag &= ~(ICANON | ECHO); | |
628 | ||
629 | /* Ignore modem status lines; enable receiver */ | |
630 | data.term.c_cflag |= (CLOCAL | CREAD); | |
631 | ||
e33ab9aa ML |
632 | ret = set_config(port, &data, &config); |
633 | ||
eac329d2 | 634 | if (ret < 0) { |
e33ab9aa | 635 | sp_close(port); |
c33efc48 | 636 | RETURN_CODEVAL(ret); |
e33ab9aa | 637 | } |
74510d4b ML |
638 | #endif |
639 | ||
c33efc48 | 640 | RETURN_OK(); |
74510d4b ML |
641 | } |
642 | ||
eb6ed20f | 643 | enum sp_return sp_close(struct sp_port *port) |
74510d4b | 644 | { |
c33efc48 ML |
645 | TRACE("%p", port); |
646 | ||
dec10e31 | 647 | CHECK_OPEN_PORT(); |
74510d4b | 648 | |
ea667be7 ML |
649 | DEBUG("Closing port %s", port->name); |
650 | ||
74510d4b ML |
651 | #ifdef _WIN32 |
652 | /* Returns non-zero upon success, 0 upon failure. */ | |
653 | if (CloseHandle(port->hdl) == 0) | |
c33efc48 | 654 | RETURN_FAIL("CloseHandle() failed"); |
8f471c66 | 655 | port->hdl = INVALID_HANDLE_VALUE; |
74510d4b ML |
656 | #else |
657 | /* Returns 0 upon success, -1 upon failure. */ | |
658 | if (close(port->fd) == -1) | |
c33efc48 | 659 | RETURN_FAIL("close() failed"); |
8f471c66 | 660 | port->fd = -1; |
74510d4b ML |
661 | #endif |
662 | ||
c33efc48 | 663 | RETURN_OK(); |
74510d4b ML |
664 | } |
665 | ||
fd8fd11a | 666 | enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 667 | { |
c33efc48 ML |
668 | TRACE("%p, %x", port, buffers); |
669 | ||
dec10e31 ML |
670 | CHECK_OPEN_PORT(); |
671 | ||
672 | if (buffers > SP_BUF_BOTH) | |
673 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 674 | |
ea667be7 ML |
675 | const char *buffer_names[] = {"input", "output", "both"}; |
676 | ||
677 | DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name); | |
678 | ||
74510d4b | 679 | #ifdef _WIN32 |
fd8fd11a ML |
680 | DWORD flags = 0; |
681 | if (buffers & SP_BUF_INPUT) | |
682 | flags |= PURGE_RXCLEAR; | |
683 | if (buffers & SP_BUF_OUTPUT) | |
684 | flags |= PURGE_TXCLEAR; | |
685 | ||
74510d4b | 686 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 687 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 688 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 689 | #else |
fd8fd11a ML |
690 | int flags = 0; |
691 | if (buffers & SP_BUF_BOTH) | |
692 | flags = TCIOFLUSH; | |
693 | else if (buffers & SP_BUF_INPUT) | |
694 | flags = TCIFLUSH; | |
82f424e6 | 695 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
696 | flags = TCOFLUSH; |
697 | ||
74510d4b | 698 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 699 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 700 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 701 | #endif |
c33efc48 | 702 | RETURN_OK(); |
74510d4b ML |
703 | } |
704 | ||
69a3739c ML |
705 | enum sp_return sp_drain(struct sp_port *port) |
706 | { | |
c33efc48 ML |
707 | TRACE("%p", port); |
708 | ||
dec10e31 | 709 | CHECK_OPEN_PORT(); |
69a3739c | 710 | |
ea667be7 ML |
711 | DEBUG("Draining port %s", port->name); |
712 | ||
69a3739c ML |
713 | #ifdef _WIN32 |
714 | /* Returns non-zero upon success, 0 upon failure. */ | |
715 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 716 | RETURN_FAIL("FlushFileBuffers() failed"); |
69a3739c ML |
717 | #else |
718 | /* Returns 0 upon success, -1 upon failure. */ | |
719 | if (tcdrain(port->fd) < 0) | |
c33efc48 | 720 | RETURN_FAIL("tcdrain() failed"); |
69a3739c ML |
721 | #endif |
722 | ||
c33efc48 | 723 | RETURN_OK(); |
69a3739c ML |
724 | } |
725 | ||
eb6ed20f | 726 | enum sp_return sp_write(struct sp_port *port, const void *buf, size_t count) |
74510d4b | 727 | { |
c33efc48 ML |
728 | TRACE("%p, %p, %d", port, buf, count); |
729 | ||
dec10e31 | 730 | CHECK_OPEN_PORT(); |
74510d4b ML |
731 | |
732 | if (!buf) | |
c33efc48 | 733 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 734 | |
ea667be7 ML |
735 | DEBUG("Writing up to %d bytes to port %s", count, port->name); |
736 | ||
74510d4b ML |
737 | #ifdef _WIN32 |
738 | DWORD written = 0; | |
f92f1f0c | 739 | |
74510d4b ML |
740 | /* Returns non-zero upon success, 0 upon failure. */ |
741 | if (WriteFile(port->hdl, buf, count, &written, NULL) == 0) | |
c33efc48 ML |
742 | RETURN_FAIL("WriteFile() failed"); |
743 | RETURN_VALUE("%d", written); | |
74510d4b ML |
744 | #else |
745 | /* Returns the number of bytes written, or -1 upon failure. */ | |
746 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 747 | |
74510d4b | 748 | if (written < 0) |
c33efc48 | 749 | RETURN_FAIL("write() failed"); |
74510d4b | 750 | else |
c33efc48 | 751 | RETURN_VALUE("%d", written); |
74510d4b ML |
752 | #endif |
753 | } | |
754 | ||
eb6ed20f | 755 | enum sp_return sp_read(struct sp_port *port, void *buf, size_t count) |
74510d4b | 756 | { |
c33efc48 ML |
757 | TRACE("%p, %p, %d", port, buf, count); |
758 | ||
dec10e31 | 759 | CHECK_OPEN_PORT(); |
74510d4b ML |
760 | |
761 | if (!buf) | |
c33efc48 | 762 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 763 | |
ea667be7 ML |
764 | DEBUG("Reading up to %d bytes from port %s", count, port->name); |
765 | ||
74510d4b ML |
766 | #ifdef _WIN32 |
767 | DWORD bytes_read = 0; | |
f92f1f0c | 768 | |
74510d4b ML |
769 | /* Returns non-zero upon success, 0 upon failure. */ |
770 | if (ReadFile(port->hdl, buf, count, &bytes_read, NULL) == 0) | |
c33efc48 ML |
771 | RETURN_FAIL("ReadFile() failed"); |
772 | RETURN_VALUE("%d", bytes_read); | |
74510d4b ML |
773 | #else |
774 | ssize_t bytes_read; | |
f92f1f0c | 775 | |
74510d4b ML |
776 | /* Returns the number of bytes read, or -1 upon failure. */ |
777 | if ((bytes_read = read(port->fd, buf, count)) < 0) | |
c33efc48 ML |
778 | RETURN_FAIL("read() failed"); |
779 | RETURN_VALUE("%d", bytes_read); | |
74510d4b ML |
780 | #endif |
781 | } | |
782 | ||
7a6d2196 ML |
783 | #ifdef __linux__ |
784 | static enum sp_return get_baudrate(int fd, int *baudrate) | |
785 | { | |
786 | void *data; | |
787 | ||
c33efc48 ML |
788 | TRACE("%d, %p", fd, baudrate); |
789 | ||
ea667be7 ML |
790 | DEBUG("Getting baud rate"); |
791 | ||
7a6d2196 | 792 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 793 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 794 | |
8d43110a ML |
795 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
796 | free(data); | |
c33efc48 | 797 | RETURN_FAIL("getting termios failed"); |
8d43110a | 798 | } |
7a6d2196 ML |
799 | |
800 | *baudrate = get_termios_speed(data); | |
801 | ||
8d43110a ML |
802 | free(data); |
803 | ||
c33efc48 | 804 | RETURN_OK(); |
7a6d2196 ML |
805 | } |
806 | ||
807 | static enum sp_return set_baudrate(int fd, int baudrate) | |
808 | { | |
809 | void *data; | |
810 | ||
c33efc48 ML |
811 | TRACE("%d, %d", fd, baudrate); |
812 | ||
ea667be7 ML |
813 | DEBUG("Getting baud rate"); |
814 | ||
7a6d2196 | 815 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 816 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 817 | |
8d43110a ML |
818 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
819 | free(data); | |
c33efc48 | 820 | RETURN_FAIL("getting termios failed"); |
8d43110a | 821 | } |
7a6d2196 | 822 | |
ea667be7 ML |
823 | DEBUG("Setting baud rate"); |
824 | ||
7a6d2196 ML |
825 | set_termios_speed(data, baudrate); |
826 | ||
8d43110a ML |
827 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
828 | free(data); | |
c33efc48 | 829 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
830 | } |
831 | ||
832 | free(data); | |
7a6d2196 | 833 | |
c33efc48 | 834 | RETURN_OK(); |
7a6d2196 | 835 | } |
40978c2b ML |
836 | |
837 | #ifdef USE_TERMIOX | |
838 | static enum sp_return get_flow(int fd, int *flow) | |
839 | { | |
840 | void *data; | |
841 | ||
c33efc48 ML |
842 | TRACE("%d, %p", fd, flow); |
843 | ||
ea667be7 ML |
844 | DEBUG("Getting advanced flow control"); |
845 | ||
40978c2b | 846 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 847 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 848 | |
8d43110a ML |
849 | if (ioctl(fd, TCGETX, data) < 0) { |
850 | free(data); | |
c33efc48 | 851 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 852 | } |
40978c2b ML |
853 | |
854 | *flow = get_termiox_flow(data); | |
855 | ||
8d43110a ML |
856 | free(data); |
857 | ||
c33efc48 | 858 | RETURN_OK(); |
40978c2b ML |
859 | } |
860 | ||
861 | static enum sp_return set_flow(int fd, int flow) | |
862 | { | |
863 | void *data; | |
864 | ||
c33efc48 ML |
865 | TRACE("%d, %d", fd, flow); |
866 | ||
ea667be7 ML |
867 | DEBUG("Getting advanced flow control"); |
868 | ||
40978c2b | 869 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 870 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 871 | |
8d43110a ML |
872 | if (ioctl(fd, TCGETX, data) < 0) { |
873 | free(data); | |
c33efc48 | 874 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 875 | } |
40978c2b | 876 | |
ea667be7 ML |
877 | DEBUG("Setting advanced flow control"); |
878 | ||
40978c2b ML |
879 | set_termiox_flow(data, flow); |
880 | ||
8d43110a ML |
881 | if (ioctl(fd, TCSETX, data) < 0) { |
882 | free(data); | |
c33efc48 | 883 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
884 | } |
885 | ||
886 | free(data); | |
40978c2b | 887 | |
c33efc48 | 888 | RETURN_OK(); |
40978c2b ML |
889 | } |
890 | #endif /* USE_TERMIOX */ | |
891 | #endif /* __linux__ */ | |
7a6d2196 | 892 | |
eb6ed20f ML |
893 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
894 | struct sp_port_config *config) | |
8094e4a0 | 895 | { |
da2748bf | 896 | unsigned int i; |
cbf628c7 | 897 | |
c33efc48 ML |
898 | TRACE("%p, %p, %p", port, data, config); |
899 | ||
ea667be7 ML |
900 | DEBUG("Getting configuration for port %s", port->name); |
901 | ||
8094e4a0 | 902 | #ifdef _WIN32 |
e33ab9aa | 903 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 904 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 905 | |
067417af | 906 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 907 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
908 | config->baudrate = std_baudrates[i].value; |
909 | break; | |
910 | } | |
911 | } | |
912 | ||
913 | if (i == NUM_STD_BAUDRATES) | |
914 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 915 | config->baudrate = data->dcb.BaudRate; |
067417af | 916 | |
e33ab9aa | 917 | config->bits = data->dcb.ByteSize; |
067417af | 918 | |
e33ab9aa ML |
919 | if (data->dcb.fParity) |
920 | switch (data->dcb.Parity) { | |
067417af ML |
921 | case NOPARITY: |
922 | config->parity = SP_PARITY_NONE; | |
923 | break; | |
924 | case EVENPARITY: | |
925 | config->parity = SP_PARITY_EVEN; | |
926 | break; | |
927 | case ODDPARITY: | |
928 | config->parity = SP_PARITY_ODD; | |
929 | break; | |
930 | default: | |
931 | config->parity = -1; | |
932 | } | |
933 | else | |
934 | config->parity = SP_PARITY_NONE; | |
935 | ||
e33ab9aa | 936 | switch (data->dcb.StopBits) { |
067417af ML |
937 | case ONESTOPBIT: |
938 | config->stopbits = 1; | |
939 | break; | |
940 | case TWOSTOPBITS: | |
941 | config->stopbits = 2; | |
942 | break; | |
943 | default: | |
944 | config->stopbits = -1; | |
945 | } | |
946 | ||
e33ab9aa | 947 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
948 | case RTS_CONTROL_DISABLE: |
949 | config->rts = SP_RTS_OFF; | |
950 | break; | |
951 | case RTS_CONTROL_ENABLE: | |
952 | config->rts = SP_RTS_ON; | |
953 | break; | |
954 | case RTS_CONTROL_HANDSHAKE: | |
955 | config->rts = SP_RTS_FLOW_CONTROL; | |
956 | break; | |
957 | default: | |
958 | config->rts = -1; | |
067417af ML |
959 | } |
960 | ||
e33ab9aa | 961 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 962 | |
e33ab9aa | 963 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
964 | case DTR_CONTROL_DISABLE: |
965 | config->dtr = SP_DTR_OFF; | |
966 | break; | |
967 | case DTR_CONTROL_ENABLE: | |
968 | config->dtr = SP_DTR_ON; | |
969 | break; | |
970 | case DTR_CONTROL_HANDSHAKE: | |
971 | config->dtr = SP_DTR_FLOW_CONTROL; | |
972 | break; | |
973 | default: | |
974 | config->dtr = -1; | |
067417af ML |
975 | } |
976 | ||
e33ab9aa ML |
977 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
978 | ||
c6754b45 ML |
979 | if (data->dcb.fInX) { |
980 | if (data->dcb.fOutX) | |
981 | config->xon_xoff = SP_XONXOFF_INOUT; | |
982 | else | |
983 | config->xon_xoff = SP_XONXOFF_IN; | |
984 | } else { | |
985 | if (data->dcb.fOutX) | |
986 | config->xon_xoff = SP_XONXOFF_OUT; | |
987 | else | |
988 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
989 | } | |
990 | ||
e33ab9aa ML |
991 | #else // !_WIN32 |
992 | ||
993 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 994 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
995 | |
996 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 997 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
998 | |
999 | #ifdef USE_TERMIOX | |
68ec29db ML |
1000 | int ret = get_flow(port->fd, &data->flow); |
1001 | ||
1002 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1003 | data->termiox_supported = 0; | |
1004 | else if (ret < 0) | |
c33efc48 | 1005 | RETURN_CODEVAL(ret); |
68ec29db ML |
1006 | else |
1007 | data->termiox_supported = 1; | |
1008 | #else | |
1009 | data->termiox_supported = 0; | |
40978c2b ML |
1010 | #endif |
1011 | ||
067417af | 1012 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1013 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1014 | config->baudrate = std_baudrates[i].value; |
1015 | break; | |
1016 | } | |
1017 | } | |
1018 | ||
31b3a8f5 MH |
1019 | if (i == NUM_STD_BAUDRATES) { |
1020 | #ifdef __APPLE__ | |
1021 | config->baudrate = (int)data->term.c_ispeed; | |
7a6d2196 ML |
1022 | #elif defined(__linux__) |
1023 | TRY(get_baudrate(port->fd, &config->baudrate)); | |
31b3a8f5 | 1024 | #else |
067417af | 1025 | config->baudrate = -1; |
31b3a8f5 MH |
1026 | #endif |
1027 | } | |
067417af | 1028 | |
e33ab9aa | 1029 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1030 | case CS8: |
1031 | config->bits = 8; | |
1032 | break; | |
1033 | case CS7: | |
1034 | config->bits = 7; | |
1035 | break; | |
1036 | case CS6: | |
1037 | config->bits = 6; | |
1038 | break; | |
1039 | case CS5: | |
1040 | config->bits = 5; | |
1041 | break; | |
1042 | default: | |
1043 | config->bits = -1; | |
1044 | } | |
1045 | ||
e33ab9aa | 1046 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1047 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1048 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af ML |
1049 | config->parity = -1; |
1050 | else | |
e33ab9aa | 1051 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1052 | |
e33ab9aa | 1053 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1054 | |
e33ab9aa | 1055 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1056 | config->rts = SP_RTS_FLOW_CONTROL; |
1057 | config->cts = SP_CTS_FLOW_CONTROL; | |
1058 | } else { | |
68ec29db | 1059 | if (data->termiox_supported && data->flow & RTS_FLOW) |
40978c2b ML |
1060 | config->rts = SP_RTS_FLOW_CONTROL; |
1061 | else | |
1062 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1063 | ||
68ec29db ML |
1064 | config->cts = (data->termiox_supported && data->flow & CTS_FLOW) ? |
1065 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; | |
067417af ML |
1066 | } |
1067 | ||
68ec29db | 1068 | if (data->termiox_supported && data->flow & DTR_FLOW) |
40978c2b ML |
1069 | config->dtr = SP_DTR_FLOW_CONTROL; |
1070 | else | |
1071 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1072 | ||
68ec29db ML |
1073 | config->dsr = (data->termiox_supported && data->flow & DSR_FLOW) ? |
1074 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; | |
705bdc69 | 1075 | |
e29b93a5 ML |
1076 | if (data->term.c_iflag & IXOFF) { |
1077 | if (data->term.c_iflag & IXON) | |
1078 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1079 | else | |
1080 | config->xon_xoff = SP_XONXOFF_IN; | |
1081 | } else { | |
1082 | if (data->term.c_iflag & IXON) | |
1083 | config->xon_xoff = SP_XONXOFF_OUT; | |
1084 | else | |
1085 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1086 | } | |
067417af ML |
1087 | #endif |
1088 | ||
c33efc48 | 1089 | RETURN_OK(); |
067417af ML |
1090 | } |
1091 | ||
7a6d2196 | 1092 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1093 | const struct sp_port_config *config) |
18fc2dd1 | 1094 | { |
e33ab9aa | 1095 | unsigned int i; |
31b3a8f5 MH |
1096 | #ifdef __APPLE__ |
1097 | BAUD_TYPE baud_nonstd; | |
1098 | ||
1099 | baud_nonstd = B0; | |
1100 | #endif | |
7a6d2196 ML |
1101 | #ifdef __linux__ |
1102 | int baud_nonstd = 0; | |
1103 | #endif | |
18fc2dd1 | 1104 | |
c33efc48 ML |
1105 | TRACE("%p, %p, %p", port, data, config); |
1106 | ||
ea667be7 ML |
1107 | DEBUG("Setting configuration for port %s", port->name); |
1108 | ||
e33ab9aa | 1109 | #ifdef _WIN32 |
eac329d2 | 1110 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1111 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1112 | if (config->baudrate == std_baudrates[i].value) { | |
1113 | data->dcb.BaudRate = std_baudrates[i].index; | |
1114 | break; | |
1115 | } | |
1116 | } | |
18fc2dd1 | 1117 | |
e33ab9aa ML |
1118 | if (i == NUM_STD_BAUDRATES) |
1119 | data->dcb.BaudRate = config->baudrate; | |
1120 | } | |
18fc2dd1 | 1121 | |
e33ab9aa ML |
1122 | if (config->bits >= 0) |
1123 | data->dcb.ByteSize = config->bits; | |
1124 | ||
1125 | if (config->parity >= 0) { | |
1126 | switch (config->parity) { | |
1127 | /* Note: There's also SPACEPARITY, MARKPARITY (unneeded so far). */ | |
1128 | case SP_PARITY_NONE: | |
1129 | data->dcb.Parity = NOPARITY; | |
1130 | break; | |
1131 | case SP_PARITY_EVEN: | |
1132 | data->dcb.Parity = EVENPARITY; | |
1133 | break; | |
1134 | case SP_PARITY_ODD: | |
1135 | data->dcb.Parity = ODDPARITY; | |
1136 | break; | |
1137 | default: | |
c33efc48 | 1138 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1139 | } |
18fc2dd1 ML |
1140 | } |
1141 | ||
e33ab9aa ML |
1142 | if (config->stopbits >= 0) { |
1143 | switch (config->stopbits) { | |
1144 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1145 | case 1: | |
1146 | data->dcb.StopBits = ONESTOPBIT; | |
1147 | break; | |
1148 | case 2: | |
1149 | data->dcb.StopBits = TWOSTOPBITS; | |
1150 | break; | |
1151 | default: | |
c33efc48 | 1152 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1153 | } |
1154 | } | |
1155 | ||
1156 | if (config->rts >= 0) { | |
1157 | switch (config->rts) { | |
1158 | case SP_RTS_OFF: | |
1159 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1160 | break; | |
1161 | case SP_RTS_ON: | |
1162 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1163 | break; | |
1164 | case SP_RTS_FLOW_CONTROL: | |
1165 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1166 | break; | |
1167 | default: | |
c33efc48 | 1168 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1169 | } |
1170 | } | |
1171 | ||
1172 | if (config->cts >= 0) { | |
1173 | switch (config->cts) { | |
1174 | case SP_CTS_IGNORE: | |
1175 | data->dcb.fOutxCtsFlow = FALSE; | |
1176 | break; | |
1177 | case SP_CTS_FLOW_CONTROL: | |
1178 | data->dcb.fOutxCtsFlow = TRUE; | |
1179 | break; | |
1180 | default: | |
c33efc48 | 1181 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1182 | } |
1183 | } | |
1184 | ||
1185 | if (config->dtr >= 0) { | |
1186 | switch (config->dtr) { | |
1187 | case SP_DTR_OFF: | |
1188 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1189 | break; | |
1190 | case SP_DTR_ON: | |
1191 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1192 | break; | |
1193 | case SP_DTR_FLOW_CONTROL: | |
1194 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1195 | break; | |
1196 | default: | |
c33efc48 | 1197 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1198 | } |
1199 | } | |
1200 | ||
1201 | if (config->dsr >= 0) { | |
1202 | switch (config->dsr) { | |
1203 | case SP_DSR_IGNORE: | |
1204 | data->dcb.fOutxDsrFlow = FALSE; | |
1205 | break; | |
1206 | case SP_DSR_FLOW_CONTROL: | |
1207 | data->dcb.fOutxDsrFlow = TRUE; | |
1208 | break; | |
1209 | default: | |
c33efc48 | 1210 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1211 | } |
18fc2dd1 ML |
1212 | } |
1213 | ||
e33ab9aa ML |
1214 | if (config->xon_xoff >= 0) { |
1215 | switch (config->xon_xoff) { | |
1216 | case SP_XONXOFF_DISABLED: | |
1217 | data->dcb.fInX = FALSE; | |
1218 | data->dcb.fOutX = FALSE; | |
1219 | break; | |
1220 | case SP_XONXOFF_IN: | |
1221 | data->dcb.fInX = TRUE; | |
1222 | data->dcb.fOutX = FALSE; | |
1223 | break; | |
1224 | case SP_XONXOFF_OUT: | |
1225 | data->dcb.fInX = FALSE; | |
1226 | data->dcb.fOutX = TRUE; | |
1227 | break; | |
1228 | case SP_XONXOFF_INOUT: | |
1229 | data->dcb.fInX = TRUE; | |
1230 | data->dcb.fOutX = TRUE; | |
1231 | break; | |
1232 | default: | |
c33efc48 | 1233 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1234 | } |
1235 | } | |
1236 | ||
1237 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1238 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1239 | |
31b3a8f5 | 1240 | #else /* !_WIN32 */ |
e33ab9aa | 1241 | |
7a6d2196 ML |
1242 | int controlbits; |
1243 | ||
eac329d2 | 1244 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1245 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1246 | if (config->baudrate == std_baudrates[i].value) { | |
1247 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1248 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1249 | |
1250 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1251 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1252 | break; |
1253 | } | |
1254 | } | |
1255 | ||
31b3a8f5 MH |
1256 | /* Non-standard baud rate */ |
1257 | if (i == NUM_STD_BAUDRATES) { | |
1258 | #ifdef __APPLE__ | |
24abdb68 | 1259 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1260 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1261 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1262 | baud_nonstd = config->baudrate; |
7a6d2196 ML |
1263 | #elif defined(__linux__) |
1264 | baud_nonstd = 1; | |
31b3a8f5 | 1265 | #else |
c33efc48 | 1266 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1267 | #endif |
1268 | } | |
e33ab9aa ML |
1269 | } |
1270 | ||
1271 | if (config->bits >= 0) { | |
1272 | data->term.c_cflag &= ~CSIZE; | |
1273 | switch (config->bits) { | |
1274 | case 8: | |
1275 | data->term.c_cflag |= CS8; | |
1276 | break; | |
1277 | case 7: | |
1278 | data->term.c_cflag |= CS7; | |
1279 | break; | |
1280 | case 6: | |
1281 | data->term.c_cflag |= CS6; | |
1282 | break; | |
23922313 UH |
1283 | case 5: |
1284 | data->term.c_cflag |= CS5; | |
1285 | break; | |
e33ab9aa | 1286 | default: |
c33efc48 | 1287 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1288 | } |
1289 | } | |
1290 | ||
1291 | if (config->parity >= 0) { | |
1292 | data->term.c_iflag &= ~IGNPAR; | |
1293 | data->term.c_cflag &= ~(PARENB | PARODD); | |
1294 | switch (config->parity) { | |
1295 | case SP_PARITY_NONE: | |
1296 | data->term.c_iflag |= IGNPAR; | |
1297 | break; | |
1298 | case SP_PARITY_EVEN: | |
1299 | data->term.c_cflag |= PARENB; | |
1300 | break; | |
1301 | case SP_PARITY_ODD: | |
1302 | data->term.c_cflag |= PARENB | PARODD; | |
1303 | break; | |
1304 | default: | |
c33efc48 | 1305 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1306 | } |
1307 | } | |
1308 | ||
1309 | if (config->stopbits >= 0) { | |
1310 | data->term.c_cflag &= ~CSTOPB; | |
1311 | switch (config->stopbits) { | |
1312 | case 1: | |
1313 | data->term.c_cflag &= ~CSTOPB; | |
1314 | break; | |
1315 | case 2: | |
1316 | data->term.c_cflag |= CSTOPB; | |
1317 | break; | |
1318 | default: | |
c33efc48 | 1319 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1320 | } |
1321 | } | |
1322 | ||
eac329d2 | 1323 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db ML |
1324 | if (data->termiox_supported) { |
1325 | data->flow &= ~(RTS_FLOW | CTS_FLOW); | |
1326 | switch (config->rts) { | |
1327 | case SP_RTS_OFF: | |
1328 | case SP_RTS_ON: | |
1329 | controlbits = TIOCM_RTS; | |
1330 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1331 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1332 | break; |
1333 | case SP_RTS_FLOW_CONTROL: | |
1334 | data->flow |= RTS_FLOW; | |
1335 | break; | |
1336 | default: | |
1337 | break; | |
e33ab9aa | 1338 | } |
68ec29db ML |
1339 | if (config->cts == SP_CTS_FLOW_CONTROL) |
1340 | data->flow |= CTS_FLOW; | |
e33ab9aa | 1341 | |
68ec29db | 1342 | if (data->flow & (RTS_FLOW | CTS_FLOW)) |
e33ab9aa | 1343 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1344 | else |
1345 | data->term.c_iflag &= ~CRTSCTS; | |
1346 | } else { | |
1347 | /* Asymmetric use of RTS/CTS not supported. */ | |
1348 | if (data->term.c_iflag & CRTSCTS) { | |
1349 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1350 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1351 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1352 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1353 | } |
1354 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1355 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1356 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1357 | } |
e33ab9aa | 1358 | } else { |
68ec29db ML |
1359 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1360 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1361 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1362 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1363 | } |
1364 | ||
1365 | if (config->rts >= 0) { | |
1366 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1367 | data->term.c_iflag |= CRTSCTS; | |
1368 | } else { | |
1369 | controlbits = TIOCM_RTS; | |
1370 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1371 | &controlbits) < 0) | |
c33efc48 | 1372 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1373 | } |
e33ab9aa ML |
1374 | } |
1375 | } | |
1376 | } | |
1377 | ||
eac329d2 | 1378 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db ML |
1379 | if (data->termiox_supported) { |
1380 | data->flow &= ~(DTR_FLOW | DSR_FLOW); | |
1381 | switch (config->dtr) { | |
1382 | case SP_DTR_OFF: | |
1383 | case SP_DTR_ON: | |
1384 | controlbits = TIOCM_DTR; | |
1385 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1386 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1387 | break; |
1388 | case SP_DTR_FLOW_CONTROL: | |
1389 | data->flow |= DTR_FLOW; | |
1390 | break; | |
1391 | default: | |
1392 | break; | |
1393 | } | |
1394 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
1395 | data->flow |= DSR_FLOW; | |
1396 | } else { | |
1397 | /* DTR/DSR flow control not supported. */ | |
1398 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1399 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1400 | |
68ec29db ML |
1401 | if (config->dtr >= 0) { |
1402 | controlbits = TIOCM_DTR; | |
1403 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1404 | &controlbits) < 0) | |
c33efc48 | 1405 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1406 | } |
e33ab9aa ML |
1407 | } |
1408 | } | |
1409 | ||
1410 | if (config->xon_xoff >= 0) { | |
1411 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1412 | switch (config->xon_xoff) { | |
1413 | case SP_XONXOFF_DISABLED: | |
1414 | break; | |
1415 | case SP_XONXOFF_IN: | |
1416 | data->term.c_iflag |= IXOFF; | |
1417 | break; | |
1418 | case SP_XONXOFF_OUT: | |
1419 | data->term.c_iflag |= IXON | IXANY; | |
1420 | break; | |
1421 | case SP_XONXOFF_INOUT: | |
1422 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1423 | break; | |
1424 | default: | |
c33efc48 | 1425 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1426 | } |
1427 | } | |
1428 | ||
1429 | if (tcsetattr(port->fd, TCSADRAIN, &data->term) < 0) | |
c33efc48 | 1430 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1431 | |
1432 | #ifdef __APPLE__ | |
1433 | if (baud_nonstd != B0) { | |
1434 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1435 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
1436 | /* Set baud rates in data->term to correct, but incompatible |
1437 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
1438 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 1439 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1440 | } |
7a6d2196 ML |
1441 | #elif defined(__linux__) |
1442 | if (baud_nonstd) | |
1443 | TRY(set_baudrate(port->fd, config->baudrate)); | |
40978c2b | 1444 | #ifdef USE_TERMIOX |
68ec29db ML |
1445 | if (data->termiox_supported) |
1446 | TRY(set_flow(port->fd, data->flow)); | |
40978c2b | 1447 | #endif |
7a6d2196 | 1448 | #endif |
31b3a8f5 MH |
1449 | |
1450 | #endif /* !_WIN32 */ | |
e33ab9aa | 1451 | |
c33efc48 | 1452 | RETURN_OK(); |
e33ab9aa ML |
1453 | } |
1454 | ||
70cd37de ML |
1455 | enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config) |
1456 | { | |
1457 | struct port_data data; | |
1458 | ||
1459 | TRACE("%p, %p", port, config); | |
1460 | ||
1461 | CHECK_OPEN_PORT(); | |
1462 | ||
1463 | if (!config) | |
1464 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
1465 | ||
1466 | TRY(get_config(port, &data, config)); | |
1467 | ||
1468 | RETURN_OK(); | |
1469 | } | |
1470 | ||
eb6ed20f | 1471 | enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config) |
e33ab9aa | 1472 | { |
8f189c4c | 1473 | struct port_data data; |
e33ab9aa ML |
1474 | struct sp_port_config prev_config; |
1475 | ||
c33efc48 ML |
1476 | TRACE("%p, %p", port, config); |
1477 | ||
dec10e31 | 1478 | CHECK_OPEN_PORT(); |
823690ae ML |
1479 | |
1480 | if (!config) | |
c33efc48 | 1481 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 1482 | |
e33ab9aa ML |
1483 | TRY(get_config(port, &data, &prev_config)); |
1484 | TRY(set_config(port, &data, config)); | |
74510d4b | 1485 | |
c33efc48 | 1486 | RETURN_OK(); |
74510d4b ML |
1487 | } |
1488 | ||
eb6ed20f | 1489 | #define CREATE_SETTER(x, type) int sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 1490 | struct port_data data; \ |
e33ab9aa | 1491 | struct sp_port_config config; \ |
c33efc48 | 1492 | TRACE("%p, %d", port, x); \ |
dec10e31 | 1493 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
1494 | TRY(get_config(port, &data, &config)); \ |
1495 | config.x = x; \ | |
1496 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 1497 | RETURN_OK(); \ |
9069c2fb ML |
1498 | } |
1499 | ||
eb6ed20f ML |
1500 | CREATE_SETTER(baudrate, int) |
1501 | CREATE_SETTER(bits, int) | |
1502 | CREATE_SETTER(parity, enum sp_parity) | |
1503 | CREATE_SETTER(stopbits, int) | |
1504 | CREATE_SETTER(rts, enum sp_rts) | |
1505 | CREATE_SETTER(cts, enum sp_cts) | |
1506 | CREATE_SETTER(dtr, enum sp_dtr) | |
1507 | CREATE_SETTER(dsr, enum sp_dsr) | |
1508 | CREATE_SETTER(xon_xoff, enum sp_xonxoff) | |
1509 | ||
1510 | enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 1511 | { |
8f189c4c | 1512 | struct port_data data; |
e33ab9aa ML |
1513 | struct sp_port_config config; |
1514 | ||
c33efc48 ML |
1515 | TRACE("%p, %d", port, flowcontrol); |
1516 | ||
dec10e31 ML |
1517 | CHECK_OPEN_PORT(); |
1518 | ||
1519 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
1520 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 1521 | |
e33ab9aa ML |
1522 | TRY(get_config(port, &data, &config)); |
1523 | ||
1524 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) | |
1525 | config.xon_xoff = SP_XONXOFF_INOUT; | |
1526 | else | |
1527 | config.xon_xoff = SP_XONXOFF_DISABLED; | |
1528 | ||
1529 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
1530 | config.rts = SP_RTS_FLOW_CONTROL; | |
1531 | config.cts = SP_CTS_FLOW_CONTROL; | |
1532 | } else { | |
1533 | if (config.rts == SP_RTS_FLOW_CONTROL) | |
1534 | config.rts = SP_RTS_ON; | |
1535 | config.cts = SP_CTS_IGNORE; | |
1536 | } | |
1537 | ||
1538 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
1539 | config.dtr = SP_DTR_FLOW_CONTROL; | |
1540 | config.dsr = SP_DSR_FLOW_CONTROL; | |
1541 | } else { | |
1542 | if (config.dtr == SP_DTR_FLOW_CONTROL) | |
1543 | config.dtr = SP_DTR_ON; | |
1544 | config.dsr = SP_DSR_IGNORE; | |
1545 | } | |
1546 | ||
1547 | TRY(set_config(port, &data, &config)); | |
1548 | ||
c33efc48 | 1549 | RETURN_OK(); |
e33ab9aa ML |
1550 | } |
1551 | ||
8cf7c697 ML |
1552 | enum sp_return sp_get_signals(struct sp_port *port, enum sp_signal *signals) |
1553 | { | |
c33efc48 ML |
1554 | TRACE("%p, %p", port, signals); |
1555 | ||
dec10e31 | 1556 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
1557 | |
1558 | if (!signals) | |
c33efc48 | 1559 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 1560 | |
ea667be7 ML |
1561 | DEBUG("Getting control signals for port %s", port->name); |
1562 | ||
8cf7c697 ML |
1563 | *signals = 0; |
1564 | #ifdef _WIN32 | |
1565 | DWORD bits; | |
1566 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 1567 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
1568 | if (bits & MS_CTS_ON) |
1569 | *signals |= SP_SIG_CTS; | |
1570 | if (bits & MS_DSR_ON) | |
1571 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 1572 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
1573 | *signals |= SP_SIG_DCD; |
1574 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
1575 | *signals |= SP_SIG_RI; |
1576 | #else | |
1577 | int bits; | |
1578 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 1579 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
1580 | if (bits & TIOCM_CTS) |
1581 | *signals |= SP_SIG_CTS; | |
1582 | if (bits & TIOCM_DSR) | |
1583 | *signals |= SP_SIG_DSR; | |
1584 | if (bits & TIOCM_CAR) | |
1585 | *signals |= SP_SIG_DCD; | |
1586 | if (bits & TIOCM_RNG) | |
1587 | *signals |= SP_SIG_RI; | |
1588 | #endif | |
c33efc48 | 1589 | RETURN_OK(); |
8cf7c697 ML |
1590 | } |
1591 | ||
90cc3ee6 ML |
1592 | enum sp_return sp_start_break(struct sp_port *port) |
1593 | { | |
c33efc48 ML |
1594 | TRACE("%p", port); |
1595 | ||
dec10e31 | 1596 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
1597 | #ifdef _WIN32 |
1598 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 1599 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
1600 | #else |
1601 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 1602 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
1603 | #endif |
1604 | ||
c33efc48 | 1605 | RETURN_OK(); |
90cc3ee6 ML |
1606 | } |
1607 | ||
1608 | enum sp_return sp_end_break(struct sp_port *port) | |
1609 | { | |
c33efc48 ML |
1610 | TRACE("%p", port); |
1611 | ||
dec10e31 | 1612 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
1613 | #ifdef _WIN32 |
1614 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 1615 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
1616 | #else |
1617 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 1618 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
1619 | #endif |
1620 | ||
c33efc48 | 1621 | RETURN_OK(); |
90cc3ee6 ML |
1622 | } |
1623 | ||
74510d4b ML |
1624 | int sp_last_error_code(void) |
1625 | { | |
c33efc48 | 1626 | TRACE(""); |
74510d4b | 1627 | #ifdef _WIN32 |
c33efc48 | 1628 | RETURN_VALUE("%d", GetLastError()); |
74510d4b | 1629 | #else |
c33efc48 | 1630 | RETURN_VALUE("%d", errno); |
74510d4b ML |
1631 | #endif |
1632 | } | |
1633 | ||
74510d4b ML |
1634 | char *sp_last_error_message(void) |
1635 | { | |
c33efc48 ML |
1636 | TRACE(""); |
1637 | ||
74510d4b ML |
1638 | #ifdef _WIN32 |
1639 | LPVOID message; | |
1640 | DWORD error = GetLastError(); | |
1641 | ||
1642 | FormatMessage( | |
1643 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
1644 | FORMAT_MESSAGE_FROM_SYSTEM | | |
1645 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
1646 | NULL, | |
1647 | error, | |
1648 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
1649 | (LPTSTR) &message, | |
1650 | 0, NULL ); | |
1651 | ||
c33efc48 | 1652 | RETURN_VALUE("%s", message); |
74510d4b | 1653 | #else |
c33efc48 | 1654 | RETURN_VALUE("%s", strerror(errno)); |
74510d4b ML |
1655 | #endif |
1656 | } | |
1657 | ||
74510d4b ML |
1658 | void sp_free_error_message(char *message) |
1659 | { | |
c33efc48 ML |
1660 | TRACE("%s", message); |
1661 | ||
74510d4b ML |
1662 | #ifdef _WIN32 |
1663 | LocalFree(message); | |
64eec30d ML |
1664 | #else |
1665 | (void)message; | |
74510d4b | 1666 | #endif |
c33efc48 ML |
1667 | |
1668 | RETURN(); | |
74510d4b | 1669 | } |
863b35e6 ML |
1670 | |
1671 | void sp_set_debug_handler(void (*handler)(const char *format, ...)) | |
1672 | { | |
c33efc48 ML |
1673 | TRACE("%p", handler); |
1674 | ||
863b35e6 | 1675 | sp_debug_handler = handler; |
c33efc48 ML |
1676 | |
1677 | RETURN(); | |
863b35e6 ML |
1678 | } |
1679 | ||
1680 | void sp_default_debug_handler(const char *format, ...) | |
1681 | { | |
1682 | va_list args; | |
1683 | va_start(args, format); | |
1684 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
1685 | fputs("libserialport: ", stderr); | |
1686 | vfprintf(stderr, format, args); | |
1687 | } | |
1688 | va_end(args); | |
1689 | } |