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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> | |
74510d4b | 42 | #endif |
3b63f34d | 43 | #ifdef __APPLE__ |
1ebf4347 ML |
44 | #include <IOKit/IOKitLib.h> |
45 | #include <IOKit/serial/IOSerialKeys.h> | |
31b3a8f5 | 46 | #include <IOKit/serial/ioss.h> |
1ebf4347 | 47 | #include <sys/syslimits.h> |
3b63f34d ML |
48 | #endif |
49 | #ifdef __linux__ | |
50 | #include "libudev.h" | |
4b97c9fc | 51 | #include "linux/serial.h" |
7a6d2196 | 52 | #include "linux_termios.h" |
6c8716e9 UH |
53 | |
54 | /* TCGETX/TCSETX is not available everywhere. */ | |
40978c2b | 55 | #if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX) |
68ec29db | 56 | #define USE_TERMIOX |
40978c2b | 57 | #endif |
3b63f34d | 58 | #endif |
74510d4b | 59 | |
6c8716e9 UH |
60 | /* TIOCINQ/TIOCOUTQ is not available everywhere. */ |
61 | #if !defined(TIOCINQ) && defined(FIONREAD) | |
62 | #define TIOCINQ FIONREAD | |
63 | #endif | |
64 | #if !defined(TIOCOUTQ) && defined(FIONWRITE) | |
65 | #define TIOCOUTQ FIONWRITE | |
66 | #endif | |
67 | ||
71c8a9b9 UH |
68 | #ifndef _WIN32 |
69 | #include "linux_termios.h" | |
70 | #endif | |
71 | ||
f6a1fb65 | 72 | #include "libserialport.h" |
74510d4b | 73 | |
1c5aae9d ML |
74 | struct sp_port { |
75 | char *name; | |
76 | #ifdef _WIN32 | |
77 | HANDLE hdl; | |
e3dcf906 | 78 | COMMTIMEOUTS timeouts; |
a3cb91f5 | 79 | OVERLAPPED write_ovl; |
e3dcf906 | 80 | OVERLAPPED read_ovl; |
0765af56 | 81 | BYTE pending_byte; |
a3cb91f5 | 82 | BOOL writing; |
1c5aae9d ML |
83 | #else |
84 | int fd; | |
85 | #endif | |
86 | }; | |
87 | ||
9b1502ef ML |
88 | struct sp_port_config { |
89 | int baudrate; | |
90 | int bits; | |
91 | enum sp_parity parity; | |
92 | int stopbits; | |
93 | enum sp_rts rts; | |
94 | enum sp_cts cts; | |
95 | enum sp_dtr dtr; | |
96 | enum sp_dsr dsr; | |
97 | enum sp_xonxoff xon_xoff; | |
98 | }; | |
99 | ||
8f189c4c | 100 | struct port_data { |
8094e4a0 ML |
101 | #ifdef _WIN32 |
102 | DCB dcb; | |
103 | #else | |
104 | struct termios term; | |
824dcb45 | 105 | int controlbits; |
68ec29db | 106 | int termiox_supported; |
40978c2b ML |
107 | int flow; |
108 | #endif | |
8094e4a0 ML |
109 | }; |
110 | ||
da2748bf ML |
111 | /* Standard baud rates. */ |
112 | #ifdef _WIN32 | |
113 | #define BAUD_TYPE DWORD | |
114 | #define BAUD(n) {CBR_##n, n} | |
115 | #else | |
116 | #define BAUD_TYPE speed_t | |
117 | #define BAUD(n) {B##n, n} | |
118 | #endif | |
119 | ||
120 | struct std_baudrate { | |
121 | BAUD_TYPE index; | |
122 | int value; | |
123 | }; | |
124 | ||
125 | const struct std_baudrate std_baudrates[] = { | |
126 | #ifdef _WIN32 | |
127 | /* | |
128 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
129 | * have documented CBR_* macros. | |
130 | */ | |
131 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
132 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 133 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 134 | #else |
eac329d2 UH |
135 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
136 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
137 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
138 | BAUD(230400), | |
da2748bf | 139 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 140 | BAUD(460800), |
da2748bf ML |
141 | #endif |
142 | #endif | |
143 | }; | |
144 | ||
863b35e6 ML |
145 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
146 | ||
da2748bf ML |
147 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
148 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) | |
149 | ||
92f756f8 ML |
150 | /* Debug output macros. */ |
151 | #define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0) | |
152 | #define DEBUG_ERROR(err, msg) DEBUG("%s returning " #err ": " msg, __func__) | |
153 | #define DEBUG_FAIL(msg) do { \ | |
154 | char *errmsg = sp_last_error_message(); \ | |
155 | DEBUG("%s returning SP_ERR_FAIL: " msg ": %s", __func__, errmsg); \ | |
156 | sp_free_error_message(errmsg); \ | |
157 | } while (0); | |
158 | #define RETURN() do { DEBUG("%s returning", __func__); return; } while(0) | |
159 | #define RETURN_CODE(x) do { DEBUG("%s returning " #x, __func__); return x; } while (0) | |
160 | #define RETURN_CODEVAL(x) do { \ | |
161 | switch (x) { \ | |
162 | case SP_OK: RETURN_CODE(SP_OK); \ | |
163 | case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \ | |
164 | case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \ | |
165 | case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \ | |
166 | case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \ | |
167 | } \ | |
168 | } while (0) | |
169 | #define RETURN_OK() RETURN_CODE(SP_OK); | |
170 | #define RETURN_ERROR(err, msg) do { DEBUG_ERROR(err, msg); return err; } while (0) | |
171 | #define RETURN_FAIL(msg) do { DEBUG_FAIL(msg); return SP_ERR_FAIL; } while (0) | |
172 | #define RETURN_VALUE(fmt, x) do { DEBUG("%s returning " fmt, __func__, x); return x; } while (0) | |
173 | #define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0) | |
aac4d7f2 | 174 | #define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = SP_ERR_FAIL; } while (0) |
92f756f8 ML |
175 | #define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__) |
176 | ||
64690702 ML |
177 | #define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0) |
178 | ||
348e23cc | 179 | /* Helper functions. */ |
348e23cc | 180 | static struct sp_port **list_append(struct sp_port **list, const char *portname); |
eb6ed20f ML |
181 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
182 | struct sp_port_config *config); | |
183 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, | |
184 | const struct sp_port_config *config); | |
80186526 | 185 | |
eb6ed20f | 186 | enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
187 | { |
188 | struct sp_port *port; | |
5919c913 | 189 | int len; |
d54e9004 | 190 | |
c33efc48 ML |
191 | TRACE("%s, %p", portname, port_ptr); |
192 | ||
32b5ac05 | 193 | if (!port_ptr) |
c33efc48 | 194 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 195 | |
77f262c4 ML |
196 | *port_ptr = NULL; |
197 | ||
d4babed2 | 198 | if (!portname) |
c33efc48 | 199 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 200 | |
ea667be7 ML |
201 | DEBUG("Building structure for port %s", portname); |
202 | ||
d54e9004 | 203 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 204 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 205 | |
5919c913 ML |
206 | len = strlen(portname) + 1; |
207 | ||
eac329d2 | 208 | if (!(port->name = malloc(len))) { |
d54e9004 | 209 | free(port); |
c33efc48 | 210 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
211 | } |
212 | ||
213 | memcpy(port->name, portname, len); | |
214 | ||
8f471c66 ML |
215 | #ifdef _WIN32 |
216 | port->hdl = INVALID_HANDLE_VALUE; | |
217 | #else | |
218 | port->fd = -1; | |
219 | #endif | |
220 | ||
77f262c4 ML |
221 | *port_ptr = port; |
222 | ||
c33efc48 | 223 | RETURN_OK(); |
d54e9004 ML |
224 | } |
225 | ||
1c5aae9d ML |
226 | char *sp_get_port_name(const struct sp_port *port) |
227 | { | |
228 | TRACE("%p", port); | |
229 | ||
230 | if (!port) | |
231 | return NULL; | |
232 | ||
233 | RETURN_VALUE("%s", port->name); | |
234 | } | |
235 | ||
3c126654 ML |
236 | enum sp_return sp_get_port_handle(const struct sp_port *port, void *result_ptr) |
237 | { | |
00d8c56d | 238 | TRACE("%p, %p", port, result_ptr); |
3c126654 ML |
239 | |
240 | if (!port) | |
241 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
242 | ||
243 | #ifdef _WIN32 | |
244 | HANDLE *handle_ptr = result_ptr; | |
245 | *handle_ptr = port->hdl; | |
246 | #else | |
247 | int *fd_ptr = result_ptr; | |
248 | *fd_ptr = port->fd; | |
249 | #endif | |
250 | ||
251 | RETURN_OK(); | |
252 | } | |
253 | ||
eb6ed20f | 254 | enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr) |
32b5ac05 | 255 | { |
c33efc48 ML |
256 | TRACE("%p, %p", port, copy_ptr); |
257 | ||
32b5ac05 | 258 | if (!copy_ptr) |
c33efc48 | 259 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
260 | |
261 | *copy_ptr = NULL; | |
262 | ||
c33efc48 ML |
263 | if (!port) |
264 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
265 | ||
266 | if (!port->name) | |
267 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 268 | |
ea667be7 ML |
269 | DEBUG("Copying port structure"); |
270 | ||
c33efc48 | 271 | RETURN_VALUE("%p", sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
272 | } |
273 | ||
e3b2f7a4 ML |
274 | void sp_free_port(struct sp_port *port) |
275 | { | |
c33efc48 ML |
276 | TRACE("%p", port); |
277 | ||
00d8c56d | 278 | if (!port) { |
c33efc48 ML |
279 | DEBUG("Null port"); |
280 | RETURN(); | |
281 | } | |
e3b2f7a4 | 282 | |
ea667be7 ML |
283 | DEBUG("Freeing port structure"); |
284 | ||
e3b2f7a4 ML |
285 | if (port->name) |
286 | free(port->name); | |
287 | ||
288 | free(port); | |
c33efc48 ML |
289 | |
290 | RETURN(); | |
e3b2f7a4 ML |
291 | } |
292 | ||
348e23cc | 293 | static struct sp_port **list_append(struct sp_port **list, const char *portname) |
3b63f34d ML |
294 | { |
295 | void *tmp; | |
296 | unsigned int count; | |
f92f1f0c | 297 | |
3b63f34d | 298 | for (count = 0; list[count]; count++); |
d54e9004 | 299 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
300 | goto fail; |
301 | list = tmp; | |
77f262c4 | 302 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 303 | goto fail; |
db2794ce | 304 | list[count + 1] = NULL; |
3b63f34d | 305 | return list; |
f92f1f0c | 306 | |
3b63f34d ML |
307 | fail: |
308 | sp_free_port_list(list); | |
309 | return NULL; | |
310 | } | |
311 | ||
eb6ed20f | 312 | enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 313 | { |
d54e9004 | 314 | struct sp_port **list; |
6b93ede4 | 315 | int ret = SP_ERR_SUPP; |
24c1a4bb | 316 | |
c33efc48 ML |
317 | TRACE("%p", list_ptr); |
318 | ||
dec10e31 ML |
319 | if (!list_ptr) |
320 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
321 | ||
ea667be7 ML |
322 | DEBUG("Enumerating ports"); |
323 | ||
d54e9004 | 324 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 325 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
326 | |
327 | list[0] = NULL; | |
3b63f34d ML |
328 | |
329 | #ifdef _WIN32 | |
330 | HKEY key; | |
bdfb5b8c ML |
331 | TCHAR *value, *data; |
332 | DWORD max_value_len, max_data_size, max_data_len; | |
333 | DWORD value_len, data_size, data_len; | |
3b63f34d | 334 | DWORD type, index = 0; |
8b532d9c ML |
335 | char *name; |
336 | int name_len; | |
3b63f34d | 337 | |
6b93ede4 ML |
338 | ret = SP_OK; |
339 | ||
ea667be7 | 340 | DEBUG("Opening registry key"); |
3b63f34d | 341 | if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"), |
eac329d2 | 342 | 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) { |
c33efc48 | 343 | SET_FAIL(ret, "RegOpenKeyEx() failed"); |
77f262c4 ML |
344 | goto out_done; |
345 | } | |
ea667be7 | 346 | DEBUG("Querying registry key value and data sizes"); |
3b63f34d | 347 | if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
eac329d2 | 348 | &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) { |
c33efc48 | 349 | SET_FAIL(ret, "RegQueryInfoKey() failed"); |
3b63f34d | 350 | goto out_close; |
77f262c4 | 351 | } |
3b63f34d | 352 | max_data_len = max_data_size / sizeof(TCHAR); |
eac329d2 | 353 | if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 354 | SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed"); |
3b63f34d | 355 | goto out_close; |
77f262c4 | 356 | } |
eac329d2 | 357 | if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 358 | SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed"); |
bdfb5b8c | 359 | goto out_free_value; |
77f262c4 | 360 | } |
ea667be7 | 361 | DEBUG("Iterating over values"); |
3b63f34d | 362 | while ( |
d9573bad | 363 | value_len = max_value_len + 1, |
3b63f34d | 364 | data_size = max_data_size, |
bdfb5b8c | 365 | RegEnumValue(key, index, value, &value_len, |
3b63f34d ML |
366 | NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS) |
367 | { | |
368 | data_len = data_size / sizeof(TCHAR); | |
369 | data[data_len] = '\0'; | |
8b532d9c ML |
370 | #ifdef UNICODE |
371 | name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL) | |
372 | #else | |
373 | name_len = data_len + 1; | |
374 | #endif | |
eac329d2 | 375 | if (!(name = malloc(name_len))) { |
c33efc48 | 376 | SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed"); |
8b532d9c | 377 | goto out; |
77f262c4 | 378 | } |
8b532d9c ML |
379 | #ifdef UNICODE |
380 | WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL); | |
381 | #else | |
382 | strcpy(name, data); | |
383 | #endif | |
c33efc48 ML |
384 | if (type == REG_SZ) { |
385 | DEBUG("Found port %s", name); | |
386 | if (!(list = list_append(list, name))) { | |
387 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
388 | goto out; | |
389 | } | |
77f262c4 | 390 | } |
3b63f34d ML |
391 | index++; |
392 | } | |
393 | out: | |
394 | free(data); | |
bdfb5b8c ML |
395 | out_free_value: |
396 | free(value); | |
3b63f34d ML |
397 | out_close: |
398 | RegCloseKey(key); | |
77f262c4 | 399 | out_done: |
3b63f34d ML |
400 | #endif |
401 | #ifdef __APPLE__ | |
402 | mach_port_t master; | |
403 | CFMutableDictionaryRef classes; | |
404 | io_iterator_t iter; | |
405 | char *path; | |
406 | io_object_t port; | |
407 | CFTypeRef cf_path; | |
408 | Boolean result; | |
409 | ||
6b93ede4 ML |
410 | ret = SP_OK; |
411 | ||
ea667be7 | 412 | DEBUG("Getting IOKit master port"); |
eac329d2 | 413 | if (IOMasterPort(MACH_PORT_NULL, &master) != KERN_SUCCESS) { |
c33efc48 | 414 | SET_FAIL(ret, "IOMasterPort() failed"); |
77f262c4 ML |
415 | goto out_done; |
416 | } | |
3b63f34d | 417 | |
ea667be7 | 418 | DEBUG("Creating matching dictionary"); |
eac329d2 | 419 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) { |
c33efc48 | 420 | SET_FAIL(ret, "IOServiceMatching() failed"); |
77f262c4 ML |
421 | goto out_done; |
422 | } | |
3b63f34d ML |
423 | |
424 | CFDictionarySetValue(classes, | |
425 | CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes)); | |
426 | ||
ea667be7 | 427 | DEBUG("Getting matching services"); |
eac329d2 | 428 | if (IOServiceGetMatchingServices(master, classes, &iter) != KERN_SUCCESS) { |
c33efc48 | 429 | SET_FAIL(ret, "IOServiceGetMatchingServices() failed"); |
77f262c4 ML |
430 | goto out_done; |
431 | } | |
3b63f34d | 432 | |
eac329d2 | 433 | if (!(path = malloc(PATH_MAX))) { |
c33efc48 | 434 | SET_ERROR(ret, SP_ERR_MEM, "device path malloc failed"); |
3b63f34d | 435 | goto out_release; |
77f262c4 | 436 | } |
3b63f34d | 437 | |
ea667be7 | 438 | DEBUG("Iterating over results"); |
1ebf4347 | 439 | while ((port = IOIteratorNext(iter))) { |
3b63f34d ML |
440 | cf_path = IORegistryEntryCreateCFProperty(port, |
441 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
442 | if (cf_path) { | |
443 | result = CFStringGetCString(cf_path, | |
444 | path, PATH_MAX, kCFStringEncodingASCII); | |
445 | CFRelease(cf_path); | |
c33efc48 ML |
446 | if (result) { |
447 | DEBUG("Found port %s", path); | |
448 | if (!(list = list_append(list, path))) { | |
449 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
450 | IOObjectRelease(port); | |
451 | goto out; | |
452 | } | |
77f262c4 | 453 | } |
3b63f34d ML |
454 | } |
455 | IOObjectRelease(port); | |
456 | } | |
3b63f34d ML |
457 | out: |
458 | free(path); | |
459 | out_release: | |
460 | IOObjectRelease(iter); | |
77f262c4 | 461 | out_done: |
3b63f34d ML |
462 | #endif |
463 | #ifdef __linux__ | |
464 | struct udev *ud; | |
465 | struct udev_enumerate *ud_enumerate; | |
466 | struct udev_list_entry *ud_list; | |
467 | struct udev_list_entry *ud_entry; | |
468 | const char *path; | |
08fe0bdb | 469 | struct udev_device *ud_dev, *ud_parent; |
3b63f34d | 470 | const char *name; |
4b97c9fc ML |
471 | const char *driver; |
472 | int fd, ioctl_result; | |
473 | struct serial_struct serial_info; | |
3b63f34d | 474 | |
6b93ede4 ML |
475 | ret = SP_OK; |
476 | ||
ea667be7 | 477 | DEBUG("Enumerating tty devices"); |
3b63f34d ML |
478 | ud = udev_new(); |
479 | ud_enumerate = udev_enumerate_new(ud); | |
480 | udev_enumerate_add_match_subsystem(ud_enumerate, "tty"); | |
481 | udev_enumerate_scan_devices(ud_enumerate); | |
482 | ud_list = udev_enumerate_get_list_entry(ud_enumerate); | |
ea667be7 | 483 | DEBUG("Iterating over results"); |
eac329d2 | 484 | udev_list_entry_foreach(ud_entry, ud_list) { |
3b63f34d | 485 | path = udev_list_entry_get_name(ud_entry); |
ea667be7 | 486 | DEBUG("Found device %s", path); |
3b63f34d | 487 | ud_dev = udev_device_new_from_syspath(ud, path); |
08fe0bdb ML |
488 | /* If there is no parent device, this is a virtual tty. */ |
489 | ud_parent = udev_device_get_parent(ud_dev); | |
eac329d2 | 490 | if (ud_parent == NULL) { |
ea667be7 | 491 | DEBUG("No parent device, assuming virtual tty"); |
08fe0bdb ML |
492 | udev_device_unref(ud_dev); |
493 | continue; | |
494 | } | |
3b63f34d | 495 | name = udev_device_get_devnode(ud_dev); |
4b97c9fc ML |
496 | /* The serial8250 driver has a hardcoded number of ports. |
497 | * The only way to tell which actually exist on a given system | |
498 | * is to try to open them and make an ioctl call. */ | |
499 | driver = udev_device_get_driver(ud_parent); | |
eac329d2 | 500 | if (driver && !strcmp(driver, "serial8250")) { |
ea667be7 ML |
501 | DEBUG("serial8250 device, attempting to open"); |
502 | if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) { | |
503 | DEBUG("open failed, skipping"); | |
4b97c9fc | 504 | goto skip; |
ea667be7 | 505 | } |
4b97c9fc ML |
506 | ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info); |
507 | close(fd); | |
ea667be7 ML |
508 | if (ioctl_result != 0) { |
509 | DEBUG("ioctl failed, skipping"); | |
4b97c9fc | 510 | goto skip; |
ea667be7 ML |
511 | } |
512 | if (serial_info.type == PORT_UNKNOWN) { | |
513 | DEBUG("port type is unknown, skipping"); | |
4b97c9fc | 514 | goto skip; |
ea667be7 | 515 | } |
4b97c9fc | 516 | } |
c33efc48 | 517 | DEBUG("Found port %s", name); |
348e23cc | 518 | list = list_append(list, name); |
4b97c9fc | 519 | skip: |
3b63f34d | 520 | udev_device_unref(ud_dev); |
eac329d2 | 521 | if (!list) { |
c33efc48 | 522 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); |
3b63f34d | 523 | goto out; |
77f262c4 | 524 | } |
3b63f34d ML |
525 | } |
526 | out: | |
527 | udev_enumerate_unref(ud_enumerate); | |
528 | udev_unref(ud); | |
3b63f34d | 529 | #endif |
77f262c4 | 530 | |
6b93ede4 ML |
531 | switch (ret) { |
532 | case SP_OK: | |
77f262c4 | 533 | *list_ptr = list; |
c33efc48 | 534 | RETURN_OK(); |
6b93ede4 ML |
535 | case SP_ERR_SUPP: |
536 | DEBUG_ERROR(SP_ERR_SUPP, "Enumeration not supported on this platform."); | |
537 | default: | |
77f262c4 ML |
538 | if (list) |
539 | sp_free_port_list(list); | |
77f262c4 | 540 | *list_ptr = NULL; |
c33efc48 | 541 | return ret; |
77f262c4 | 542 | } |
3b63f34d ML |
543 | } |
544 | ||
d54e9004 | 545 | void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
546 | { |
547 | unsigned int i; | |
f92f1f0c | 548 | |
c33efc48 ML |
549 | TRACE("%p", list); |
550 | ||
dec10e31 ML |
551 | if (!list) { |
552 | DEBUG("Null list"); | |
553 | RETURN(); | |
554 | } | |
555 | ||
ea667be7 ML |
556 | DEBUG("Freeing port list"); |
557 | ||
3b63f34d | 558 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 559 | sp_free_port(list[i]); |
3b63f34d | 560 | free(list); |
c33efc48 ML |
561 | |
562 | RETURN(); | |
3b63f34d ML |
563 | } |
564 | ||
c33efc48 ML |
565 | #define CHECK_PORT() do { \ |
566 | if (port == NULL) \ | |
567 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
dec10e31 ML |
568 | if (port->name == NULL) \ |
569 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); \ | |
570 | } while (0) | |
571 | #ifdef _WIN32 | |
572 | #define CHECK_PORT_HANDLE() do { \ | |
c33efc48 ML |
573 | if (port->hdl == INVALID_HANDLE_VALUE) \ |
574 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
dec10e31 | 575 | } while (0) |
74510d4b | 576 | #else |
dec10e31 | 577 | #define CHECK_PORT_HANDLE() do { \ |
c33efc48 ML |
578 | if (port->fd < 0) \ |
579 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
dec10e31 | 580 | } while (0) |
74510d4b | 581 | #endif |
dec10e31 ML |
582 | #define CHECK_OPEN_PORT() do { \ |
583 | CHECK_PORT(); \ | |
584 | CHECK_PORT_HANDLE(); \ | |
585 | } while (0) | |
74510d4b | 586 | |
eb6ed20f | 587 | enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 588 | { |
bccc7c9f ML |
589 | struct port_data data; |
590 | struct sp_port_config config; | |
591 | enum sp_return ret; | |
592 | ||
00d8c56d | 593 | TRACE("%p, 0x%x", port, flags); |
c33efc48 | 594 | |
dec10e31 ML |
595 | CHECK_PORT(); |
596 | ||
e3dcf906 | 597 | if (flags > (SP_MODE_READ | SP_MODE_WRITE)) |
dec10e31 | 598 | RETURN_ERROR(SP_ERR_ARG, "Invalid flags"); |
74510d4b | 599 | |
ea667be7 ML |
600 | DEBUG("Opening port %s", port->name); |
601 | ||
74510d4b ML |
602 | #ifdef _WIN32 |
603 | DWORD desired_access = 0, flags_and_attributes = 0; | |
99945a1f ML |
604 | char *escaped_port_name; |
605 | ||
606 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
607 | if (!(escaped_port_name = malloc(strlen(port->name + 5)))) | |
c33efc48 | 608 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
609 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
610 | ||
74510d4b | 611 | /* Map 'flags' to the OS-specific settings. */ |
e3dcf906 | 612 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED; |
a036341b ML |
613 | if (flags & SP_MODE_READ) |
614 | desired_access |= GENERIC_READ; | |
615 | if (flags & SP_MODE_WRITE) | |
74510d4b | 616 | desired_access |= GENERIC_WRITE; |
74510d4b | 617 | |
99945a1f | 618 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 619 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
620 | |
621 | free(escaped_port_name); | |
622 | ||
74510d4b | 623 | if (port->hdl == INVALID_HANDLE_VALUE) |
e3dcf906 ML |
624 | RETURN_FAIL("port CreateFile() failed"); |
625 | ||
626 | /* All timeouts initially disabled. */ | |
627 | port->timeouts.ReadIntervalTimeout = 0; | |
628 | port->timeouts.ReadTotalTimeoutMultiplier = 0; | |
629 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
630 | port->timeouts.WriteTotalTimeoutMultiplier = 0; | |
631 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
a3cb91f5 | 632 | |
e3dcf906 | 633 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) { |
a3cb91f5 ML |
634 | sp_close(port); |
635 | RETURN_FAIL("SetCommTimeouts() failed"); | |
636 | } | |
e3dcf906 ML |
637 | |
638 | /* Prepare OVERLAPPED structures. */ | |
639 | memset(&port->read_ovl, 0, sizeof(port->read_ovl)); | |
640 | memset(&port->write_ovl, 0, sizeof(port->write_ovl)); | |
641 | port->read_ovl.hEvent = INVALID_HANDLE_VALUE; | |
642 | port->write_ovl.hEvent = INVALID_HANDLE_VALUE; | |
643 | if ((port->read_ovl.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL)) == INVALID_HANDLE_VALUE) { | |
644 | sp_close(port); | |
645 | RETURN_FAIL("read event CreateEvent() failed"); | |
646 | } | |
647 | if ((port->write_ovl.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL)) == INVALID_HANDLE_VALUE) { | |
648 | sp_close(port); | |
649 | RETURN_FAIL("write event CreateEvent() failed"); | |
650 | } | |
651 | ||
652 | port->writing = FALSE; | |
653 | ||
74510d4b | 654 | #else |
e3dcf906 | 655 | int flags_local = O_NONBLOCK | O_NOCTTY; |
f92f1f0c | 656 | |
74510d4b | 657 | /* Map 'flags' to the OS-specific settings. */ |
a036341b | 658 | if (flags & (SP_MODE_READ | SP_MODE_WRITE)) |
74510d4b | 659 | flags_local |= O_RDWR; |
a036341b | 660 | else if (flags & SP_MODE_READ) |
74510d4b | 661 | flags_local |= O_RDONLY; |
a036341b ML |
662 | else if (flags & SP_MODE_WRITE) |
663 | flags_local |= O_WRONLY; | |
74510d4b ML |
664 | |
665 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 666 | RETURN_FAIL("open() failed"); |
bccc7c9f | 667 | #endif |
9cb98459 | 668 | |
e33ab9aa ML |
669 | ret = get_config(port, &data, &config); |
670 | ||
eac329d2 | 671 | if (ret < 0) { |
e33ab9aa | 672 | sp_close(port); |
c33efc48 | 673 | RETURN_CODEVAL(ret); |
e33ab9aa | 674 | } |
9cb98459 | 675 | |
bccc7c9f ML |
676 | /* Set sane port settings. */ |
677 | #ifdef _WIN32 | |
678 | data.dcb.fBinary = TRUE; | |
679 | data.dcb.fDsrSensitivity = FALSE; | |
680 | data.dcb.fErrorChar = FALSE; | |
681 | data.dcb.fNull = FALSE; | |
682 | data.dcb.fAbortOnError = TRUE; | |
683 | #else | |
b251be4b | 684 | /* Turn off all fancy termios tricks, give us a raw channel. */ |
c3e05092 UH |
685 | data.term.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IMAXBEL); |
686 | #ifdef IUCLC | |
687 | data.term.c_iflag &= ~IUCLC; | |
688 | #endif | |
689 | data.term.c_oflag &= ~(OPOST | ONLCR | OCRNL | ONOCR | ONLRET); | |
690 | #ifdef OLCUC | |
691 | data.term.c_oflag &= ~OLCUC; | |
692 | #endif | |
693 | #ifdef NLDLY | |
694 | data.term.c_oflag &= ~NLDLY; | |
695 | #endif | |
696 | #ifdef CRDLY | |
697 | data.term.c_oflag &= ~CRDLY; | |
698 | #endif | |
699 | #ifdef TABDLY | |
700 | data.term.c_oflag &= ~TABDLY; | |
701 | #endif | |
702 | #ifdef BSDLY | |
703 | data.term.c_oflag &= ~BSDLY; | |
704 | #endif | |
705 | #ifdef VTDLY | |
706 | data.term.c_oflag &= ~VTDLY; | |
707 | #endif | |
708 | #ifdef FFDLY | |
709 | data.term.c_oflag &= ~FFDLY; | |
710 | #endif | |
b251be4b | 711 | #ifdef OFILL |
9cb98459 ML |
712 | data.term.c_oflag &= ~OFILL; |
713 | #endif | |
c3e05092 | 714 | data.term.c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN); |
e3dcf906 | 715 | data.term.c_cc[VMIN] = 0; |
b251be4b | 716 | data.term.c_cc[VTIME] = 0; |
9cb98459 | 717 | |
b251be4b ML |
718 | /* Ignore modem status lines; enable receiver; leave control lines alone on close. */ |
719 | data.term.c_cflag |= (CLOCAL | CREAD | HUPCL); | |
bccc7c9f | 720 | #endif |
9cb98459 | 721 | |
e33ab9aa ML |
722 | ret = set_config(port, &data, &config); |
723 | ||
eac329d2 | 724 | if (ret < 0) { |
e33ab9aa | 725 | sp_close(port); |
c33efc48 | 726 | RETURN_CODEVAL(ret); |
e33ab9aa | 727 | } |
74510d4b | 728 | |
c33efc48 | 729 | RETURN_OK(); |
74510d4b ML |
730 | } |
731 | ||
eb6ed20f | 732 | enum sp_return sp_close(struct sp_port *port) |
74510d4b | 733 | { |
c33efc48 ML |
734 | TRACE("%p", port); |
735 | ||
dec10e31 | 736 | CHECK_OPEN_PORT(); |
74510d4b | 737 | |
ea667be7 ML |
738 | DEBUG("Closing port %s", port->name); |
739 | ||
74510d4b ML |
740 | #ifdef _WIN32 |
741 | /* Returns non-zero upon success, 0 upon failure. */ | |
742 | if (CloseHandle(port->hdl) == 0) | |
e3dcf906 | 743 | RETURN_FAIL("port CloseHandle() failed"); |
8f471c66 | 744 | port->hdl = INVALID_HANDLE_VALUE; |
e3dcf906 ML |
745 | /* Close event handle created for overlapped reads. */ |
746 | if (port->read_ovl.hEvent != INVALID_HANDLE_VALUE && CloseHandle(port->read_ovl.hEvent) == 0) | |
747 | RETURN_FAIL("read event CloseHandle() failed"); | |
748 | /* Close event handle created for overlapped writes. */ | |
749 | if (port->write_ovl.hEvent != INVALID_HANDLE_VALUE && CloseHandle(port->write_ovl.hEvent) == 0) | |
750 | RETURN_FAIL("write event CloseHandle() failed"); | |
74510d4b ML |
751 | #else |
752 | /* Returns 0 upon success, -1 upon failure. */ | |
753 | if (close(port->fd) == -1) | |
c33efc48 | 754 | RETURN_FAIL("close() failed"); |
8f471c66 | 755 | port->fd = -1; |
74510d4b ML |
756 | #endif |
757 | ||
c33efc48 | 758 | RETURN_OK(); |
74510d4b ML |
759 | } |
760 | ||
fd8fd11a | 761 | enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 762 | { |
00d8c56d | 763 | TRACE("%p, 0x%x", port, buffers); |
c33efc48 | 764 | |
dec10e31 ML |
765 | CHECK_OPEN_PORT(); |
766 | ||
767 | if (buffers > SP_BUF_BOTH) | |
768 | RETURN_ERROR(SP_ERR_ARG, "Invalid buffer selection"); | |
74510d4b | 769 | |
0ba3e49b | 770 | const char *buffer_names[] = {"no", "input", "output", "both"}; |
ea667be7 ML |
771 | |
772 | DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name); | |
773 | ||
74510d4b | 774 | #ifdef _WIN32 |
fd8fd11a ML |
775 | DWORD flags = 0; |
776 | if (buffers & SP_BUF_INPUT) | |
777 | flags |= PURGE_RXCLEAR; | |
778 | if (buffers & SP_BUF_OUTPUT) | |
779 | flags |= PURGE_TXCLEAR; | |
780 | ||
74510d4b | 781 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 782 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 783 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 784 | #else |
fd8fd11a ML |
785 | int flags = 0; |
786 | if (buffers & SP_BUF_BOTH) | |
787 | flags = TCIOFLUSH; | |
788 | else if (buffers & SP_BUF_INPUT) | |
789 | flags = TCIFLUSH; | |
82f424e6 | 790 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
791 | flags = TCOFLUSH; |
792 | ||
74510d4b | 793 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 794 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 795 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 796 | #endif |
c33efc48 | 797 | RETURN_OK(); |
74510d4b ML |
798 | } |
799 | ||
69a3739c ML |
800 | enum sp_return sp_drain(struct sp_port *port) |
801 | { | |
c33efc48 ML |
802 | TRACE("%p", port); |
803 | ||
dec10e31 | 804 | CHECK_OPEN_PORT(); |
69a3739c | 805 | |
ea667be7 ML |
806 | DEBUG("Draining port %s", port->name); |
807 | ||
69a3739c ML |
808 | #ifdef _WIN32 |
809 | /* Returns non-zero upon success, 0 upon failure. */ | |
810 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 811 | RETURN_FAIL("FlushFileBuffers() failed"); |
2c827b21 | 812 | RETURN_OK(); |
69a3739c | 813 | #else |
2c827b21 ML |
814 | int result; |
815 | while (1) { | |
816 | result = tcdrain(port->fd); | |
817 | if (result < 0) { | |
818 | if (errno == EINTR) { | |
819 | DEBUG("tcdrain() was interrupted"); | |
820 | continue; | |
821 | } else { | |
822 | RETURN_FAIL("tcdrain() failed"); | |
823 | } | |
824 | } else { | |
825 | RETURN_OK(); | |
826 | } | |
827 | } | |
69a3739c | 828 | #endif |
69a3739c ML |
829 | } |
830 | ||
e3dcf906 ML |
831 | enum sp_return sp_blocking_write(struct sp_port *port, const void *buf, size_t count, unsigned int timeout) |
832 | { | |
833 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
834 | ||
835 | CHECK_OPEN_PORT(); | |
836 | ||
837 | if (!buf) | |
838 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
839 | ||
840 | if (timeout) | |
841 | DEBUG("Writing %d bytes to port %s, timeout %d ms", count, port->name, timeout); | |
842 | else | |
843 | DEBUG("Writing %d bytes to port %s, no timeout", count, port->name); | |
844 | ||
845 | if (count == 0) | |
846 | RETURN_VALUE("0", 0); | |
847 | ||
848 | #ifdef _WIN32 | |
849 | DWORD bytes_written = 0; | |
850 | BOOL result; | |
851 | ||
852 | /* Wait for previous non-blocking write to complete, if any. */ | |
853 | if (port->writing) { | |
854 | DEBUG("Waiting for previous write to complete"); | |
855 | result = GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
856 | port->writing = 0; | |
857 | if (!result) | |
858 | RETURN_FAIL("Previous write failed to complete"); | |
859 | DEBUG("Previous write completed"); | |
860 | } | |
861 | ||
862 | /* Set timeout. */ | |
863 | port->timeouts.WriteTotalTimeoutConstant = timeout; | |
864 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
865 | RETURN_FAIL("SetCommTimeouts() failed"); | |
866 | ||
867 | /* Start write. */ | |
868 | if (WriteFile(port->hdl, buf, count, NULL, &port->write_ovl) == 0) { | |
869 | if (GetLastError() == ERROR_IO_PENDING) { | |
870 | DEBUG("Waiting for write to complete"); | |
871 | GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); | |
872 | DEBUG("Write completed, %d/%d bytes written", bytes_written, count); | |
873 | RETURN_VALUE("%d", bytes_written); | |
874 | } else { | |
875 | RETURN_FAIL("WriteFile() failed"); | |
876 | } | |
877 | } else { | |
878 | DEBUG("Write completed immediately"); | |
879 | RETURN_VALUE("%d", count); | |
880 | } | |
881 | #else | |
882 | size_t bytes_written = 0; | |
883 | unsigned char *ptr = (unsigned char *) buf; | |
884 | struct timeval start, delta, now, end = {0, 0}; | |
885 | fd_set fds; | |
886 | int result; | |
887 | ||
888 | if (timeout) { | |
889 | /* Get time at start of operation. */ | |
890 | gettimeofday(&start, NULL); | |
891 | /* Define duration of timeout. */ | |
892 | delta.tv_sec = timeout / 1000; | |
1b342042 | 893 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
894 | /* Calculate time at which we should give up. */ |
895 | timeradd(&start, &delta, &end); | |
896 | } | |
897 | ||
898 | /* Loop until we have written the requested number of bytes. */ | |
899 | while (bytes_written < count) | |
900 | { | |
901 | /* Wait until space is available. */ | |
902 | FD_ZERO(&fds); | |
903 | FD_SET(port->fd, &fds); | |
904 | if (timeout) { | |
905 | gettimeofday(&now, NULL); | |
906 | if (timercmp(&now, &end, >)) { | |
907 | DEBUG("write timed out"); | |
908 | RETURN_VALUE("%d", bytes_written); | |
909 | } | |
910 | timersub(&end, &now, &delta); | |
911 | } | |
912 | result = select(port->fd + 1, NULL, &fds, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
913 | if (result < 0) { |
914 | if (errno == EINTR) { | |
915 | DEBUG("select() call was interrupted, repeating"); | |
916 | continue; | |
917 | } else { | |
918 | RETURN_FAIL("select() failed"); | |
919 | } | |
920 | } else if (result == 0) { | |
e3dcf906 ML |
921 | DEBUG("write timed out"); |
922 | RETURN_VALUE("%d", bytes_written); | |
923 | } | |
924 | ||
925 | /* Do write. */ | |
926 | result = write(port->fd, ptr, count - bytes_written); | |
927 | ||
928 | if (result < 0) { | |
929 | if (errno == EAGAIN) | |
930 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
931 | continue; | |
932 | else | |
933 | /* This is an actual failure. */ | |
934 | RETURN_FAIL("write() failed"); | |
935 | } | |
936 | ||
937 | bytes_written += result; | |
938 | ptr += result; | |
939 | } | |
940 | ||
941 | RETURN_VALUE("%d", bytes_written); | |
942 | #endif | |
943 | } | |
944 | ||
945 | enum sp_return sp_nonblocking_write(struct sp_port *port, const void *buf, size_t count) | |
74510d4b | 946 | { |
c33efc48 ML |
947 | TRACE("%p, %p, %d", port, buf, count); |
948 | ||
dec10e31 | 949 | CHECK_OPEN_PORT(); |
74510d4b ML |
950 | |
951 | if (!buf) | |
c33efc48 | 952 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 953 | |
ea667be7 ML |
954 | DEBUG("Writing up to %d bytes to port %s", count, port->name); |
955 | ||
a3cb91f5 ML |
956 | if (count == 0) |
957 | RETURN_VALUE("0", 0); | |
958 | ||
74510d4b ML |
959 | #ifdef _WIN32 |
960 | DWORD written = 0; | |
0765af56 | 961 | BYTE *ptr = (BYTE *) buf; |
f92f1f0c | 962 | |
e3dcf906 ML |
963 | /* Check whether previous write is complete. */ |
964 | if (port->writing) { | |
965 | if (HasOverlappedIoCompleted(&port->write_ovl)) { | |
966 | DEBUG("Previous write completed"); | |
967 | port->writing = 0; | |
968 | } else { | |
969 | DEBUG("Previous write not complete"); | |
970 | /* Can't take a new write until the previous one finishes. */ | |
971 | RETURN_VALUE("0", 0); | |
a3cb91f5 | 972 | } |
e3dcf906 | 973 | } |
a3cb91f5 | 974 | |
e3dcf906 ML |
975 | /* Set timeout. */ |
976 | port->timeouts.WriteTotalTimeoutConstant = 0; | |
977 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
978 | RETURN_FAIL("SetCommTimeouts() failed"); | |
979 | ||
980 | /* Keep writing data until the OS has to actually start an async IO for it. | |
981 | * At that point we know the buffer is full. */ | |
982 | while (written < count) | |
983 | { | |
984 | /* Copy first byte of user buffer. */ | |
985 | port->pending_byte = *ptr++; | |
986 | ||
987 | /* Start asynchronous write. */ | |
988 | if (WriteFile(port->hdl, &port->pending_byte, 1, NULL, &port->write_ovl) == 0) { | |
989 | if (GetLastError() == ERROR_IO_PENDING) { | |
990 | DEBUG("Asynchronous write started"); | |
991 | port->writing = 1; | |
992 | RETURN_VALUE("%d", ++written); | |
a3cb91f5 | 993 | } else { |
e3dcf906 ML |
994 | /* Actual failure of some kind. */ |
995 | RETURN_FAIL("WriteFile() failed"); | |
a3cb91f5 | 996 | } |
e3dcf906 ML |
997 | } else { |
998 | DEBUG("Single byte written immediately."); | |
999 | written++; | |
a3cb91f5 ML |
1000 | } |
1001 | } | |
1002 | ||
e3dcf906 ML |
1003 | DEBUG("All bytes written immediately."); |
1004 | ||
c33efc48 | 1005 | RETURN_VALUE("%d", written); |
74510d4b ML |
1006 | #else |
1007 | /* Returns the number of bytes written, or -1 upon failure. */ | |
1008 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 1009 | |
74510d4b | 1010 | if (written < 0) |
c33efc48 | 1011 | RETURN_FAIL("write() failed"); |
74510d4b | 1012 | else |
c33efc48 | 1013 | RETURN_VALUE("%d", written); |
74510d4b ML |
1014 | #endif |
1015 | } | |
1016 | ||
e3dcf906 ML |
1017 | enum sp_return sp_blocking_read(struct sp_port *port, void *buf, size_t count, unsigned int timeout) |
1018 | { | |
1019 | TRACE("%p, %p, %d, %d", port, buf, count, timeout); | |
1020 | ||
1021 | CHECK_OPEN_PORT(); | |
1022 | ||
1023 | if (!buf) | |
1024 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); | |
1025 | ||
1026 | if (timeout) | |
1027 | DEBUG("Reading %d bytes from port %s, timeout %d ms", count, port->name, timeout); | |
1028 | else | |
1029 | DEBUG("Reading %d bytes from port %s, no timeout", count, port->name); | |
1030 | ||
1031 | if (count == 0) | |
1032 | RETURN_VALUE("0", 0); | |
1033 | ||
1034 | #ifdef _WIN32 | |
1035 | DWORD bytes_read = 0; | |
1036 | ||
1037 | /* Set timeout. */ | |
1038 | port->timeouts.ReadIntervalTimeout = 0; | |
1039 | port->timeouts.ReadTotalTimeoutConstant = timeout; | |
1040 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1041 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1042 | ||
1043 | /* Start read. */ | |
1044 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) { | |
1045 | if (GetLastError() == ERROR_IO_PENDING) { | |
1046 | DEBUG("Waiting for read to complete"); | |
1047 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
1048 | DEBUG("Read completed, %d/%d bytes read", bytes_read, count); | |
1049 | RETURN_VALUE("%d", bytes_read); | |
1050 | } else { | |
1051 | RETURN_FAIL("ReadFile() failed"); | |
1052 | } | |
1053 | } else { | |
1054 | DEBUG("Read completed immediately"); | |
1055 | RETURN_VALUE("%d", count); | |
1056 | } | |
1057 | #else | |
1058 | size_t bytes_read = 0; | |
1059 | unsigned char *ptr = (unsigned char *) buf; | |
1060 | struct timeval start, delta, now, end = {0, 0}; | |
1061 | fd_set fds; | |
1062 | int result; | |
1063 | ||
1064 | if (timeout) { | |
1065 | /* Get time at start of operation. */ | |
1066 | gettimeofday(&start, NULL); | |
1067 | /* Define duration of timeout. */ | |
1068 | delta.tv_sec = timeout / 1000; | |
1b342042 | 1069 | delta.tv_usec = (timeout % 1000) * 1000; |
e3dcf906 ML |
1070 | /* Calculate time at which we should give up. */ |
1071 | timeradd(&start, &delta, &end); | |
1072 | } | |
1073 | ||
1074 | /* Loop until we have the requested number of bytes. */ | |
1075 | while (bytes_read < count) | |
1076 | { | |
1077 | /* Wait until data is available. */ | |
1078 | FD_ZERO(&fds); | |
1079 | FD_SET(port->fd, &fds); | |
1080 | if (timeout) { | |
1081 | gettimeofday(&now, NULL); | |
1082 | if (timercmp(&now, &end, >)) | |
1083 | /* Timeout has expired. */ | |
1084 | RETURN_VALUE("%d", bytes_read); | |
1085 | timersub(&end, &now, &delta); | |
1086 | } | |
1087 | result = select(port->fd + 1, &fds, NULL, NULL, timeout ? &delta : NULL); | |
63a17c64 ML |
1088 | if (result < 0) { |
1089 | if (errno == EINTR) { | |
1090 | DEBUG("select() call was interrupted, repeating"); | |
1091 | continue; | |
1092 | } else { | |
1093 | RETURN_FAIL("select() failed"); | |
1094 | } | |
1095 | } else if (result == 0) { | |
e3dcf906 ML |
1096 | DEBUG("read timed out"); |
1097 | RETURN_VALUE("%d", bytes_read); | |
1098 | } | |
1099 | ||
1100 | /* Do read. */ | |
1101 | result = read(port->fd, ptr, count - bytes_read); | |
1102 | ||
1103 | if (result < 0) { | |
1104 | if (errno == EAGAIN) | |
1105 | /* This shouldn't happen because we did a select() first, but handle anyway. */ | |
1106 | continue; | |
1107 | else | |
1108 | /* This is an actual failure. */ | |
1109 | RETURN_FAIL("read() failed"); | |
1110 | } | |
1111 | ||
1112 | bytes_read += result; | |
1113 | ptr += result; | |
1114 | } | |
1115 | ||
1116 | RETURN_VALUE("%d", bytes_read); | |
1117 | #endif | |
1118 | } | |
1119 | ||
1120 | enum sp_return sp_nonblocking_read(struct sp_port *port, void *buf, size_t count) | |
74510d4b | 1121 | { |
c33efc48 ML |
1122 | TRACE("%p, %p, %d", port, buf, count); |
1123 | ||
dec10e31 | 1124 | CHECK_OPEN_PORT(); |
74510d4b ML |
1125 | |
1126 | if (!buf) | |
c33efc48 | 1127 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 1128 | |
ea667be7 ML |
1129 | DEBUG("Reading up to %d bytes from port %s", count, port->name); |
1130 | ||
74510d4b | 1131 | #ifdef _WIN32 |
e3dcf906 | 1132 | DWORD bytes_read; |
f92f1f0c | 1133 | |
e3dcf906 ML |
1134 | /* Set timeout. */ |
1135 | port->timeouts.ReadIntervalTimeout = MAXDWORD; | |
1136 | port->timeouts.ReadTotalTimeoutConstant = 0; | |
1137 | if (SetCommTimeouts(port->hdl, &port->timeouts) == 0) | |
1138 | RETURN_FAIL("SetCommTimeouts() failed"); | |
1139 | ||
1140 | /* Do read. */ | |
1141 | if (ReadFile(port->hdl, buf, count, NULL, &port->read_ovl) == 0) | |
c33efc48 | 1142 | RETURN_FAIL("ReadFile() failed"); |
e3dcf906 ML |
1143 | |
1144 | /* Get number of bytes read. */ | |
1145 | GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); | |
1146 | ||
c33efc48 | 1147 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1148 | #else |
1149 | ssize_t bytes_read; | |
f92f1f0c | 1150 | |
74510d4b | 1151 | /* Returns the number of bytes read, or -1 upon failure. */ |
33d5ff47 | 1152 | if ((bytes_read = read(port->fd, buf, count)) < 0) { |
e3dcf906 ML |
1153 | if (errno == EAGAIN) |
1154 | /* No bytes available. */ | |
33d5ff47 ML |
1155 | bytes_read = 0; |
1156 | else | |
1157 | /* This is an actual failure. */ | |
1158 | RETURN_FAIL("read() failed"); | |
1159 | } | |
c33efc48 | 1160 | RETURN_VALUE("%d", bytes_read); |
74510d4b ML |
1161 | #endif |
1162 | } | |
1163 | ||
3353c22f ML |
1164 | enum sp_return sp_input_waiting(struct sp_port *port) |
1165 | { | |
1166 | TRACE("%p", port); | |
1167 | ||
1168 | CHECK_OPEN_PORT(); | |
1169 | ||
1170 | DEBUG("Checking input bytes waiting on port %s", port->name); | |
1171 | ||
1172 | #ifdef _WIN32 | |
1173 | DWORD errors; | |
1174 | COMSTAT comstat; | |
1175 | ||
1176 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1177 | RETURN_FAIL("ClearComError() failed"); | |
1178 | RETURN_VALUE("%d", comstat.cbInQue); | |
1179 | #else | |
1180 | int bytes_waiting; | |
1181 | if (ioctl(port->fd, TIOCINQ, &bytes_waiting) < 0) | |
1182 | RETURN_FAIL("TIOCINQ ioctl failed"); | |
1183 | RETURN_VALUE("%d", bytes_waiting); | |
1184 | #endif | |
1185 | } | |
1186 | ||
1187 | enum sp_return sp_output_waiting(struct sp_port *port) | |
1188 | { | |
1189 | TRACE("%p", port); | |
1190 | ||
1191 | CHECK_OPEN_PORT(); | |
1192 | ||
1193 | DEBUG("Checking output bytes waiting on port %s", port->name); | |
1194 | ||
1195 | #ifdef _WIN32 | |
1196 | DWORD errors; | |
1197 | COMSTAT comstat; | |
1198 | ||
1199 | if (ClearCommError(port->hdl, &errors, &comstat) == 0) | |
1200 | RETURN_FAIL("ClearComError() failed"); | |
1201 | RETURN_VALUE("%d", comstat.cbOutQue); | |
1202 | #else | |
1203 | int bytes_waiting; | |
1204 | if (ioctl(port->fd, TIOCOUTQ, &bytes_waiting) < 0) | |
1205 | RETURN_FAIL("TIOCOUTQ ioctl failed"); | |
1206 | RETURN_VALUE("%d", bytes_waiting); | |
1207 | #endif | |
1208 | } | |
1209 | ||
7a6d2196 ML |
1210 | #ifdef __linux__ |
1211 | static enum sp_return get_baudrate(int fd, int *baudrate) | |
1212 | { | |
1213 | void *data; | |
1214 | ||
c33efc48 ML |
1215 | TRACE("%d, %p", fd, baudrate); |
1216 | ||
ea667be7 ML |
1217 | DEBUG("Getting baud rate"); |
1218 | ||
7a6d2196 | 1219 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1220 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1221 | |
8d43110a ML |
1222 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1223 | free(data); | |
c33efc48 | 1224 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1225 | } |
7a6d2196 ML |
1226 | |
1227 | *baudrate = get_termios_speed(data); | |
1228 | ||
8d43110a ML |
1229 | free(data); |
1230 | ||
c33efc48 | 1231 | RETURN_OK(); |
7a6d2196 ML |
1232 | } |
1233 | ||
1234 | static enum sp_return set_baudrate(int fd, int baudrate) | |
1235 | { | |
1236 | void *data; | |
1237 | ||
c33efc48 ML |
1238 | TRACE("%d, %d", fd, baudrate); |
1239 | ||
ea667be7 ML |
1240 | DEBUG("Getting baud rate"); |
1241 | ||
7a6d2196 | 1242 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 1243 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 1244 | |
8d43110a ML |
1245 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
1246 | free(data); | |
c33efc48 | 1247 | RETURN_FAIL("getting termios failed"); |
8d43110a | 1248 | } |
7a6d2196 | 1249 | |
ea667be7 ML |
1250 | DEBUG("Setting baud rate"); |
1251 | ||
7a6d2196 ML |
1252 | set_termios_speed(data, baudrate); |
1253 | ||
8d43110a ML |
1254 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
1255 | free(data); | |
c33efc48 | 1256 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
1257 | } |
1258 | ||
1259 | free(data); | |
7a6d2196 | 1260 | |
c33efc48 | 1261 | RETURN_OK(); |
7a6d2196 | 1262 | } |
40978c2b ML |
1263 | |
1264 | #ifdef USE_TERMIOX | |
1265 | static enum sp_return get_flow(int fd, int *flow) | |
1266 | { | |
1267 | void *data; | |
1268 | ||
c33efc48 ML |
1269 | TRACE("%d, %p", fd, flow); |
1270 | ||
ea667be7 ML |
1271 | DEBUG("Getting advanced flow control"); |
1272 | ||
40978c2b | 1273 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 1274 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1275 | |
8d43110a ML |
1276 | if (ioctl(fd, TCGETX, data) < 0) { |
1277 | free(data); | |
c33efc48 | 1278 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1279 | } |
40978c2b ML |
1280 | |
1281 | *flow = get_termiox_flow(data); | |
1282 | ||
8d43110a ML |
1283 | free(data); |
1284 | ||
c33efc48 | 1285 | RETURN_OK(); |
40978c2b ML |
1286 | } |
1287 | ||
1288 | static enum sp_return set_flow(int fd, int flow) | |
1289 | { | |
1290 | void *data; | |
1291 | ||
c33efc48 ML |
1292 | TRACE("%d, %d", fd, flow); |
1293 | ||
ea667be7 ML |
1294 | DEBUG("Getting advanced flow control"); |
1295 | ||
40978c2b | 1296 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 1297 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 1298 | |
8d43110a ML |
1299 | if (ioctl(fd, TCGETX, data) < 0) { |
1300 | free(data); | |
c33efc48 | 1301 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 1302 | } |
40978c2b | 1303 | |
ea667be7 ML |
1304 | DEBUG("Setting advanced flow control"); |
1305 | ||
40978c2b ML |
1306 | set_termiox_flow(data, flow); |
1307 | ||
8d43110a ML |
1308 | if (ioctl(fd, TCSETX, data) < 0) { |
1309 | free(data); | |
c33efc48 | 1310 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
1311 | } |
1312 | ||
1313 | free(data); | |
40978c2b | 1314 | |
c33efc48 | 1315 | RETURN_OK(); |
40978c2b ML |
1316 | } |
1317 | #endif /* USE_TERMIOX */ | |
1318 | #endif /* __linux__ */ | |
7a6d2196 | 1319 | |
eb6ed20f ML |
1320 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
1321 | struct sp_port_config *config) | |
8094e4a0 | 1322 | { |
da2748bf | 1323 | unsigned int i; |
cbf628c7 | 1324 | |
c33efc48 ML |
1325 | TRACE("%p, %p, %p", port, data, config); |
1326 | ||
ea667be7 ML |
1327 | DEBUG("Getting configuration for port %s", port->name); |
1328 | ||
8094e4a0 | 1329 | #ifdef _WIN32 |
e33ab9aa | 1330 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 1331 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 1332 | |
067417af | 1333 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1334 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
1335 | config->baudrate = std_baudrates[i].value; |
1336 | break; | |
1337 | } | |
1338 | } | |
1339 | ||
1340 | if (i == NUM_STD_BAUDRATES) | |
1341 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 1342 | config->baudrate = data->dcb.BaudRate; |
067417af | 1343 | |
e33ab9aa | 1344 | config->bits = data->dcb.ByteSize; |
067417af | 1345 | |
e33ab9aa ML |
1346 | if (data->dcb.fParity) |
1347 | switch (data->dcb.Parity) { | |
067417af ML |
1348 | case NOPARITY: |
1349 | config->parity = SP_PARITY_NONE; | |
1350 | break; | |
e432ce60 ML |
1351 | case ODDPARITY: |
1352 | config->parity = SP_PARITY_ODD; | |
1353 | break; | |
067417af ML |
1354 | case EVENPARITY: |
1355 | config->parity = SP_PARITY_EVEN; | |
1356 | break; | |
e432ce60 ML |
1357 | case MARKPARITY: |
1358 | config->parity = SP_PARITY_MARK; | |
1359 | break; | |
1360 | case SPACEPARITY: | |
1361 | config->parity = SP_PARITY_SPACE; | |
067417af ML |
1362 | break; |
1363 | default: | |
1364 | config->parity = -1; | |
1365 | } | |
1366 | else | |
1367 | config->parity = SP_PARITY_NONE; | |
1368 | ||
e33ab9aa | 1369 | switch (data->dcb.StopBits) { |
067417af ML |
1370 | case ONESTOPBIT: |
1371 | config->stopbits = 1; | |
1372 | break; | |
1373 | case TWOSTOPBITS: | |
1374 | config->stopbits = 2; | |
1375 | break; | |
1376 | default: | |
1377 | config->stopbits = -1; | |
1378 | } | |
1379 | ||
e33ab9aa | 1380 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
1381 | case RTS_CONTROL_DISABLE: |
1382 | config->rts = SP_RTS_OFF; | |
1383 | break; | |
1384 | case RTS_CONTROL_ENABLE: | |
1385 | config->rts = SP_RTS_ON; | |
1386 | break; | |
1387 | case RTS_CONTROL_HANDSHAKE: | |
1388 | config->rts = SP_RTS_FLOW_CONTROL; | |
1389 | break; | |
1390 | default: | |
1391 | config->rts = -1; | |
067417af ML |
1392 | } |
1393 | ||
e33ab9aa | 1394 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 1395 | |
e33ab9aa | 1396 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
1397 | case DTR_CONTROL_DISABLE: |
1398 | config->dtr = SP_DTR_OFF; | |
1399 | break; | |
1400 | case DTR_CONTROL_ENABLE: | |
1401 | config->dtr = SP_DTR_ON; | |
1402 | break; | |
1403 | case DTR_CONTROL_HANDSHAKE: | |
1404 | config->dtr = SP_DTR_FLOW_CONTROL; | |
1405 | break; | |
1406 | default: | |
1407 | config->dtr = -1; | |
067417af ML |
1408 | } |
1409 | ||
e33ab9aa ML |
1410 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
1411 | ||
c6754b45 ML |
1412 | if (data->dcb.fInX) { |
1413 | if (data->dcb.fOutX) | |
1414 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1415 | else | |
1416 | config->xon_xoff = SP_XONXOFF_IN; | |
1417 | } else { | |
1418 | if (data->dcb.fOutX) | |
1419 | config->xon_xoff = SP_XONXOFF_OUT; | |
1420 | else | |
1421 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1422 | } | |
1423 | ||
e33ab9aa ML |
1424 | #else // !_WIN32 |
1425 | ||
1426 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 1427 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
1428 | |
1429 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 1430 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
1431 | |
1432 | #ifdef USE_TERMIOX | |
68ec29db ML |
1433 | int ret = get_flow(port->fd, &data->flow); |
1434 | ||
1435 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
1436 | data->termiox_supported = 0; | |
1437 | else if (ret < 0) | |
c33efc48 | 1438 | RETURN_CODEVAL(ret); |
68ec29db ML |
1439 | else |
1440 | data->termiox_supported = 1; | |
1441 | #else | |
1442 | data->termiox_supported = 0; | |
40978c2b ML |
1443 | #endif |
1444 | ||
067417af | 1445 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 1446 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
1447 | config->baudrate = std_baudrates[i].value; |
1448 | break; | |
1449 | } | |
1450 | } | |
1451 | ||
31b3a8f5 MH |
1452 | if (i == NUM_STD_BAUDRATES) { |
1453 | #ifdef __APPLE__ | |
1454 | config->baudrate = (int)data->term.c_ispeed; | |
7a6d2196 ML |
1455 | #elif defined(__linux__) |
1456 | TRY(get_baudrate(port->fd, &config->baudrate)); | |
31b3a8f5 | 1457 | #else |
067417af | 1458 | config->baudrate = -1; |
31b3a8f5 MH |
1459 | #endif |
1460 | } | |
067417af | 1461 | |
e33ab9aa | 1462 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
1463 | case CS8: |
1464 | config->bits = 8; | |
1465 | break; | |
1466 | case CS7: | |
1467 | config->bits = 7; | |
1468 | break; | |
1469 | case CS6: | |
1470 | config->bits = 6; | |
1471 | break; | |
1472 | case CS5: | |
1473 | config->bits = 5; | |
1474 | break; | |
1475 | default: | |
1476 | config->bits = -1; | |
1477 | } | |
1478 | ||
e33ab9aa | 1479 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 1480 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 1481 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af | 1482 | config->parity = -1; |
c3e05092 | 1483 | #ifdef CMSPAR |
e432ce60 ML |
1484 | else if (data->term.c_cflag & CMSPAR) |
1485 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_MARK : SP_PARITY_SPACE; | |
c3e05092 | 1486 | #endif |
067417af | 1487 | else |
e33ab9aa | 1488 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 1489 | |
e33ab9aa | 1490 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 1491 | |
e33ab9aa | 1492 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
1493 | config->rts = SP_RTS_FLOW_CONTROL; |
1494 | config->cts = SP_CTS_FLOW_CONTROL; | |
1495 | } else { | |
68ec29db | 1496 | if (data->termiox_supported && data->flow & RTS_FLOW) |
40978c2b ML |
1497 | config->rts = SP_RTS_FLOW_CONTROL; |
1498 | else | |
1499 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
1500 | ||
68ec29db ML |
1501 | config->cts = (data->termiox_supported && data->flow & CTS_FLOW) ? |
1502 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; | |
067417af ML |
1503 | } |
1504 | ||
68ec29db | 1505 | if (data->termiox_supported && data->flow & DTR_FLOW) |
40978c2b ML |
1506 | config->dtr = SP_DTR_FLOW_CONTROL; |
1507 | else | |
1508 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1509 | ||
68ec29db ML |
1510 | config->dsr = (data->termiox_supported && data->flow & DSR_FLOW) ? |
1511 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; | |
705bdc69 | 1512 | |
e29b93a5 ML |
1513 | if (data->term.c_iflag & IXOFF) { |
1514 | if (data->term.c_iflag & IXON) | |
1515 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1516 | else | |
1517 | config->xon_xoff = SP_XONXOFF_IN; | |
1518 | } else { | |
1519 | if (data->term.c_iflag & IXON) | |
1520 | config->xon_xoff = SP_XONXOFF_OUT; | |
1521 | else | |
1522 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1523 | } | |
067417af ML |
1524 | #endif |
1525 | ||
c33efc48 | 1526 | RETURN_OK(); |
067417af ML |
1527 | } |
1528 | ||
7a6d2196 | 1529 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1530 | const struct sp_port_config *config) |
18fc2dd1 | 1531 | { |
e33ab9aa | 1532 | unsigned int i; |
31b3a8f5 MH |
1533 | #ifdef __APPLE__ |
1534 | BAUD_TYPE baud_nonstd; | |
1535 | ||
1536 | baud_nonstd = B0; | |
1537 | #endif | |
7a6d2196 ML |
1538 | #ifdef __linux__ |
1539 | int baud_nonstd = 0; | |
1540 | #endif | |
18fc2dd1 | 1541 | |
c33efc48 ML |
1542 | TRACE("%p, %p, %p", port, data, config); |
1543 | ||
ea667be7 ML |
1544 | DEBUG("Setting configuration for port %s", port->name); |
1545 | ||
e33ab9aa | 1546 | #ifdef _WIN32 |
eac329d2 | 1547 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1548 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1549 | if (config->baudrate == std_baudrates[i].value) { | |
1550 | data->dcb.BaudRate = std_baudrates[i].index; | |
1551 | break; | |
1552 | } | |
1553 | } | |
18fc2dd1 | 1554 | |
e33ab9aa ML |
1555 | if (i == NUM_STD_BAUDRATES) |
1556 | data->dcb.BaudRate = config->baudrate; | |
1557 | } | |
18fc2dd1 | 1558 | |
e33ab9aa ML |
1559 | if (config->bits >= 0) |
1560 | data->dcb.ByteSize = config->bits; | |
1561 | ||
1562 | if (config->parity >= 0) { | |
1563 | switch (config->parity) { | |
1564 | /* Note: There's also SPACEPARITY, MARKPARITY (unneeded so far). */ | |
1565 | case SP_PARITY_NONE: | |
1566 | data->dcb.Parity = NOPARITY; | |
1567 | break; | |
e432ce60 ML |
1568 | case SP_PARITY_ODD: |
1569 | data->dcb.Parity = ODDPARITY; | |
1570 | break; | |
e33ab9aa ML |
1571 | case SP_PARITY_EVEN: |
1572 | data->dcb.Parity = EVENPARITY; | |
1573 | break; | |
e432ce60 ML |
1574 | case SP_PARITY_MARK: |
1575 | data->dcb.Parity = MARKPARITY; | |
1576 | break; | |
1577 | case SP_PARITY_SPACE: | |
1578 | data->dcb.Parity = SPACEPARITY; | |
e33ab9aa ML |
1579 | break; |
1580 | default: | |
c33efc48 | 1581 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1582 | } |
18fc2dd1 ML |
1583 | } |
1584 | ||
e33ab9aa ML |
1585 | if (config->stopbits >= 0) { |
1586 | switch (config->stopbits) { | |
1587 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1588 | case 1: | |
1589 | data->dcb.StopBits = ONESTOPBIT; | |
1590 | break; | |
1591 | case 2: | |
1592 | data->dcb.StopBits = TWOSTOPBITS; | |
1593 | break; | |
1594 | default: | |
c33efc48 | 1595 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1596 | } |
1597 | } | |
1598 | ||
1599 | if (config->rts >= 0) { | |
1600 | switch (config->rts) { | |
1601 | case SP_RTS_OFF: | |
1602 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1603 | break; | |
1604 | case SP_RTS_ON: | |
1605 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1606 | break; | |
1607 | case SP_RTS_FLOW_CONTROL: | |
1608 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1609 | break; | |
1610 | default: | |
c33efc48 | 1611 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1612 | } |
1613 | } | |
1614 | ||
1615 | if (config->cts >= 0) { | |
1616 | switch (config->cts) { | |
1617 | case SP_CTS_IGNORE: | |
1618 | data->dcb.fOutxCtsFlow = FALSE; | |
1619 | break; | |
1620 | case SP_CTS_FLOW_CONTROL: | |
1621 | data->dcb.fOutxCtsFlow = TRUE; | |
1622 | break; | |
1623 | default: | |
c33efc48 | 1624 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1625 | } |
1626 | } | |
1627 | ||
1628 | if (config->dtr >= 0) { | |
1629 | switch (config->dtr) { | |
1630 | case SP_DTR_OFF: | |
1631 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1632 | break; | |
1633 | case SP_DTR_ON: | |
1634 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1635 | break; | |
1636 | case SP_DTR_FLOW_CONTROL: | |
1637 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1638 | break; | |
1639 | default: | |
c33efc48 | 1640 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1641 | } |
1642 | } | |
1643 | ||
1644 | if (config->dsr >= 0) { | |
1645 | switch (config->dsr) { | |
1646 | case SP_DSR_IGNORE: | |
1647 | data->dcb.fOutxDsrFlow = FALSE; | |
1648 | break; | |
1649 | case SP_DSR_FLOW_CONTROL: | |
1650 | data->dcb.fOutxDsrFlow = TRUE; | |
1651 | break; | |
1652 | default: | |
c33efc48 | 1653 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1654 | } |
18fc2dd1 ML |
1655 | } |
1656 | ||
e33ab9aa ML |
1657 | if (config->xon_xoff >= 0) { |
1658 | switch (config->xon_xoff) { | |
1659 | case SP_XONXOFF_DISABLED: | |
1660 | data->dcb.fInX = FALSE; | |
1661 | data->dcb.fOutX = FALSE; | |
1662 | break; | |
1663 | case SP_XONXOFF_IN: | |
1664 | data->dcb.fInX = TRUE; | |
1665 | data->dcb.fOutX = FALSE; | |
1666 | break; | |
1667 | case SP_XONXOFF_OUT: | |
1668 | data->dcb.fInX = FALSE; | |
1669 | data->dcb.fOutX = TRUE; | |
1670 | break; | |
1671 | case SP_XONXOFF_INOUT: | |
1672 | data->dcb.fInX = TRUE; | |
1673 | data->dcb.fOutX = TRUE; | |
1674 | break; | |
1675 | default: | |
c33efc48 | 1676 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1677 | } |
1678 | } | |
1679 | ||
1680 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1681 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1682 | |
31b3a8f5 | 1683 | #else /* !_WIN32 */ |
e33ab9aa | 1684 | |
7a6d2196 ML |
1685 | int controlbits; |
1686 | ||
eac329d2 | 1687 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1688 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1689 | if (config->baudrate == std_baudrates[i].value) { | |
1690 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1691 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1692 | |
1693 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1694 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1695 | break; |
1696 | } | |
1697 | } | |
1698 | ||
31b3a8f5 MH |
1699 | /* Non-standard baud rate */ |
1700 | if (i == NUM_STD_BAUDRATES) { | |
1701 | #ifdef __APPLE__ | |
24abdb68 | 1702 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1703 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1704 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1705 | baud_nonstd = config->baudrate; |
7a6d2196 ML |
1706 | #elif defined(__linux__) |
1707 | baud_nonstd = 1; | |
31b3a8f5 | 1708 | #else |
c33efc48 | 1709 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1710 | #endif |
1711 | } | |
e33ab9aa ML |
1712 | } |
1713 | ||
1714 | if (config->bits >= 0) { | |
1715 | data->term.c_cflag &= ~CSIZE; | |
1716 | switch (config->bits) { | |
1717 | case 8: | |
1718 | data->term.c_cflag |= CS8; | |
1719 | break; | |
1720 | case 7: | |
1721 | data->term.c_cflag |= CS7; | |
1722 | break; | |
1723 | case 6: | |
1724 | data->term.c_cflag |= CS6; | |
1725 | break; | |
23922313 UH |
1726 | case 5: |
1727 | data->term.c_cflag |= CS5; | |
1728 | break; | |
e33ab9aa | 1729 | default: |
c33efc48 | 1730 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1731 | } |
1732 | } | |
1733 | ||
1734 | if (config->parity >= 0) { | |
1735 | data->term.c_iflag &= ~IGNPAR; | |
c3e05092 UH |
1736 | data->term.c_cflag &= ~(PARENB | PARODD); |
1737 | #ifdef CMSPAR | |
1738 | data->term.c_cflag &= ~CMSPAR; | |
1739 | #endif | |
e33ab9aa ML |
1740 | switch (config->parity) { |
1741 | case SP_PARITY_NONE: | |
1742 | data->term.c_iflag |= IGNPAR; | |
1743 | break; | |
1744 | case SP_PARITY_EVEN: | |
1745 | data->term.c_cflag |= PARENB; | |
1746 | break; | |
1747 | case SP_PARITY_ODD: | |
1748 | data->term.c_cflag |= PARENB | PARODD; | |
1749 | break; | |
afb518f0 | 1750 | #ifdef CMSPAR |
e432ce60 | 1751 | case SP_PARITY_MARK: |
c3e05092 | 1752 | data->term.c_cflag |= PARENB | PARODD; |
c3e05092 | 1753 | data->term.c_cflag |= CMSPAR; |
e432ce60 ML |
1754 | break; |
1755 | case SP_PARITY_SPACE: | |
c3e05092 | 1756 | data->term.c_cflag |= PARENB; |
c3e05092 | 1757 | data->term.c_cflag |= CMSPAR; |
e432ce60 | 1758 | break; |
afb518f0 ML |
1759 | #else |
1760 | case SP_PARITY_MARK: | |
1761 | case SP_PARITY_SPACE: | |
1762 | RETURN_ERROR(SP_ERR_SUPP, "Mark/space parity not supported"); | |
1763 | #endif | |
e33ab9aa | 1764 | default: |
c33efc48 | 1765 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1766 | } |
1767 | } | |
1768 | ||
1769 | if (config->stopbits >= 0) { | |
1770 | data->term.c_cflag &= ~CSTOPB; | |
1771 | switch (config->stopbits) { | |
1772 | case 1: | |
1773 | data->term.c_cflag &= ~CSTOPB; | |
1774 | break; | |
1775 | case 2: | |
1776 | data->term.c_cflag |= CSTOPB; | |
1777 | break; | |
1778 | default: | |
c33efc48 | 1779 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1780 | } |
1781 | } | |
1782 | ||
eac329d2 | 1783 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db ML |
1784 | if (data->termiox_supported) { |
1785 | data->flow &= ~(RTS_FLOW | CTS_FLOW); | |
1786 | switch (config->rts) { | |
1787 | case SP_RTS_OFF: | |
1788 | case SP_RTS_ON: | |
1789 | controlbits = TIOCM_RTS; | |
1790 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1791 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1792 | break; |
1793 | case SP_RTS_FLOW_CONTROL: | |
1794 | data->flow |= RTS_FLOW; | |
1795 | break; | |
1796 | default: | |
1797 | break; | |
e33ab9aa | 1798 | } |
68ec29db ML |
1799 | if (config->cts == SP_CTS_FLOW_CONTROL) |
1800 | data->flow |= CTS_FLOW; | |
e33ab9aa | 1801 | |
68ec29db | 1802 | if (data->flow & (RTS_FLOW | CTS_FLOW)) |
e33ab9aa | 1803 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1804 | else |
1805 | data->term.c_iflag &= ~CRTSCTS; | |
1806 | } else { | |
1807 | /* Asymmetric use of RTS/CTS not supported. */ | |
1808 | if (data->term.c_iflag & CRTSCTS) { | |
1809 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1810 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1811 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1812 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1813 | } |
1814 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1815 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1816 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1817 | } |
e33ab9aa | 1818 | } else { |
68ec29db ML |
1819 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1820 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1821 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1822 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1823 | } |
1824 | ||
1825 | if (config->rts >= 0) { | |
1826 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1827 | data->term.c_iflag |= CRTSCTS; | |
1828 | } else { | |
1829 | controlbits = TIOCM_RTS; | |
1830 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1831 | &controlbits) < 0) | |
c33efc48 | 1832 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1833 | } |
e33ab9aa ML |
1834 | } |
1835 | } | |
1836 | } | |
1837 | ||
eac329d2 | 1838 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db ML |
1839 | if (data->termiox_supported) { |
1840 | data->flow &= ~(DTR_FLOW | DSR_FLOW); | |
1841 | switch (config->dtr) { | |
1842 | case SP_DTR_OFF: | |
1843 | case SP_DTR_ON: | |
1844 | controlbits = TIOCM_DTR; | |
1845 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1846 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1847 | break; |
1848 | case SP_DTR_FLOW_CONTROL: | |
1849 | data->flow |= DTR_FLOW; | |
1850 | break; | |
1851 | default: | |
1852 | break; | |
1853 | } | |
1854 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
1855 | data->flow |= DSR_FLOW; | |
1856 | } else { | |
1857 | /* DTR/DSR flow control not supported. */ | |
1858 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1859 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1860 | |
68ec29db ML |
1861 | if (config->dtr >= 0) { |
1862 | controlbits = TIOCM_DTR; | |
1863 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1864 | &controlbits) < 0) | |
c33efc48 | 1865 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1866 | } |
e33ab9aa ML |
1867 | } |
1868 | } | |
1869 | ||
1870 | if (config->xon_xoff >= 0) { | |
1871 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1872 | switch (config->xon_xoff) { | |
1873 | case SP_XONXOFF_DISABLED: | |
1874 | break; | |
1875 | case SP_XONXOFF_IN: | |
1876 | data->term.c_iflag |= IXOFF; | |
1877 | break; | |
1878 | case SP_XONXOFF_OUT: | |
1879 | data->term.c_iflag |= IXON | IXANY; | |
1880 | break; | |
1881 | case SP_XONXOFF_INOUT: | |
1882 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1883 | break; | |
1884 | default: | |
c33efc48 | 1885 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1886 | } |
1887 | } | |
1888 | ||
3f5c06d0 | 1889 | if (tcsetattr(port->fd, TCSANOW, &data->term) < 0) |
c33efc48 | 1890 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1891 | |
1892 | #ifdef __APPLE__ | |
1893 | if (baud_nonstd != B0) { | |
1894 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1895 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
1896 | /* Set baud rates in data->term to correct, but incompatible |
1897 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
1898 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 1899 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1900 | } |
7a6d2196 ML |
1901 | #elif defined(__linux__) |
1902 | if (baud_nonstd) | |
1903 | TRY(set_baudrate(port->fd, config->baudrate)); | |
40978c2b | 1904 | #ifdef USE_TERMIOX |
68ec29db ML |
1905 | if (data->termiox_supported) |
1906 | TRY(set_flow(port->fd, data->flow)); | |
40978c2b | 1907 | #endif |
7a6d2196 | 1908 | #endif |
31b3a8f5 MH |
1909 | |
1910 | #endif /* !_WIN32 */ | |
e33ab9aa | 1911 | |
c33efc48 | 1912 | RETURN_OK(); |
e33ab9aa ML |
1913 | } |
1914 | ||
9b1502ef ML |
1915 | enum sp_return sp_new_config(struct sp_port_config **config_ptr) |
1916 | { | |
59131d60 | 1917 | struct sp_port_config *config; |
9b1502ef | 1918 | |
00d8c56d UH |
1919 | TRACE("%p", config_ptr); |
1920 | ||
9b1502ef ML |
1921 | if (!config_ptr) |
1922 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); | |
1923 | ||
59131d60 ML |
1924 | *config_ptr = NULL; |
1925 | ||
1926 | if (!(config = malloc(sizeof(struct sp_port_config)))) | |
9b1502ef ML |
1927 | RETURN_ERROR(SP_ERR_MEM, "config malloc failed"); |
1928 | ||
59131d60 ML |
1929 | config->baudrate = -1; |
1930 | config->bits = -1; | |
1931 | config->parity = -1; | |
1932 | config->stopbits = -1; | |
1933 | config->rts = -1; | |
1934 | config->cts = -1; | |
1935 | config->dtr = -1; | |
1936 | config->dsr = -1; | |
1937 | ||
1938 | *config_ptr = config; | |
1939 | ||
9b1502ef ML |
1940 | RETURN_OK(); |
1941 | } | |
1942 | ||
1943 | void sp_free_config(struct sp_port_config *config) | |
1944 | { | |
1945 | TRACE("%p", config); | |
1946 | ||
1947 | if (!config) | |
1948 | DEBUG("Null config"); | |
1949 | else | |
1950 | free(config); | |
1951 | ||
1952 | RETURN(); | |
1953 | } | |
1954 | ||
70cd37de ML |
1955 | enum sp_return sp_get_config(struct sp_port *port, struct sp_port_config *config) |
1956 | { | |
1957 | struct port_data data; | |
1958 | ||
1959 | TRACE("%p, %p", port, config); | |
1960 | ||
1961 | CHECK_OPEN_PORT(); | |
1962 | ||
1963 | if (!config) | |
9b1502ef | 1964 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
70cd37de ML |
1965 | |
1966 | TRY(get_config(port, &data, config)); | |
1967 | ||
1968 | RETURN_OK(); | |
1969 | } | |
1970 | ||
eb6ed20f | 1971 | enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config) |
e33ab9aa | 1972 | { |
8f189c4c | 1973 | struct port_data data; |
e33ab9aa ML |
1974 | struct sp_port_config prev_config; |
1975 | ||
c33efc48 ML |
1976 | TRACE("%p, %p", port, config); |
1977 | ||
dec10e31 | 1978 | CHECK_OPEN_PORT(); |
823690ae ML |
1979 | |
1980 | if (!config) | |
c33efc48 | 1981 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 1982 | |
e33ab9aa ML |
1983 | TRY(get_config(port, &data, &prev_config)); |
1984 | TRY(set_config(port, &data, config)); | |
74510d4b | 1985 | |
c33efc48 | 1986 | RETURN_OK(); |
74510d4b ML |
1987 | } |
1988 | ||
9b1502ef ML |
1989 | #define CREATE_ACCESSORS(x, type) \ |
1990 | enum sp_return sp_set_##x(struct sp_port *port, type x) { \ | |
8f189c4c | 1991 | struct port_data data; \ |
e33ab9aa | 1992 | struct sp_port_config config; \ |
c33efc48 | 1993 | TRACE("%p, %d", port, x); \ |
dec10e31 | 1994 | CHECK_OPEN_PORT(); \ |
e33ab9aa ML |
1995 | TRY(get_config(port, &data, &config)); \ |
1996 | config.x = x; \ | |
1997 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 1998 | RETURN_OK(); \ |
9b1502ef ML |
1999 | } \ |
2000 | enum sp_return sp_get_config_##x(const struct sp_port_config *config, type *x) { \ | |
00d8c56d | 2001 | TRACE("%p, %p", config, x); \ |
9b1502ef ML |
2002 | if (!config) \ |
2003 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2004 | *x = config->x; \ | |
2005 | RETURN_OK(); \ | |
2006 | } \ | |
2007 | enum sp_return sp_set_config_##x(struct sp_port_config *config, type x) { \ | |
2008 | TRACE("%p, %d", config, x); \ | |
2009 | if (!config) \ | |
2010 | RETURN_ERROR(SP_ERR_ARG, "Null config"); \ | |
2011 | config->x = x; \ | |
2012 | RETURN_OK(); \ | |
9069c2fb ML |
2013 | } |
2014 | ||
9b1502ef ML |
2015 | CREATE_ACCESSORS(baudrate, int) |
2016 | CREATE_ACCESSORS(bits, int) | |
2017 | CREATE_ACCESSORS(parity, enum sp_parity) | |
2018 | CREATE_ACCESSORS(stopbits, int) | |
2019 | CREATE_ACCESSORS(rts, enum sp_rts) | |
2020 | CREATE_ACCESSORS(cts, enum sp_cts) | |
2021 | CREATE_ACCESSORS(dtr, enum sp_dtr) | |
2022 | CREATE_ACCESSORS(dsr, enum sp_dsr) | |
2023 | CREATE_ACCESSORS(xon_xoff, enum sp_xonxoff) | |
2024 | ||
2025 | enum sp_return sp_set_config_flowcontrol(struct sp_port_config *config, enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 2026 | { |
9b1502ef ML |
2027 | if (!config) |
2028 | RETURN_ERROR(SP_ERR_ARG, "Null configuration"); | |
dec10e31 ML |
2029 | |
2030 | if (flowcontrol > SP_FLOWCONTROL_DTRDSR) | |
2031 | RETURN_ERROR(SP_ERR_ARG, "Invalid flow control setting"); | |
823690ae | 2032 | |
e33ab9aa | 2033 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) |
9b1502ef | 2034 | config->xon_xoff = SP_XONXOFF_INOUT; |
e33ab9aa | 2035 | else |
9b1502ef | 2036 | config->xon_xoff = SP_XONXOFF_DISABLED; |
e33ab9aa ML |
2037 | |
2038 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
9b1502ef ML |
2039 | config->rts = SP_RTS_FLOW_CONTROL; |
2040 | config->cts = SP_CTS_FLOW_CONTROL; | |
e33ab9aa | 2041 | } else { |
9b1502ef ML |
2042 | if (config->rts == SP_RTS_FLOW_CONTROL) |
2043 | config->rts = SP_RTS_ON; | |
2044 | config->cts = SP_CTS_IGNORE; | |
e33ab9aa ML |
2045 | } |
2046 | ||
2047 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
9b1502ef ML |
2048 | config->dtr = SP_DTR_FLOW_CONTROL; |
2049 | config->dsr = SP_DSR_FLOW_CONTROL; | |
e33ab9aa | 2050 | } else { |
9b1502ef ML |
2051 | if (config->dtr == SP_DTR_FLOW_CONTROL) |
2052 | config->dtr = SP_DTR_ON; | |
2053 | config->dsr = SP_DSR_IGNORE; | |
e33ab9aa ML |
2054 | } |
2055 | ||
9b1502ef ML |
2056 | RETURN_OK(); |
2057 | } | |
2058 | ||
2059 | enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol) | |
2060 | { | |
2061 | struct port_data data; | |
2062 | struct sp_port_config config; | |
2063 | ||
2064 | TRACE("%p, %d", port, flowcontrol); | |
2065 | ||
2066 | CHECK_OPEN_PORT(); | |
2067 | ||
2068 | TRY(get_config(port, &data, &config)); | |
2069 | ||
2070 | TRY(sp_set_config_flowcontrol(&config, flowcontrol)); | |
2071 | ||
e33ab9aa ML |
2072 | TRY(set_config(port, &data, &config)); |
2073 | ||
c33efc48 | 2074 | RETURN_OK(); |
e33ab9aa ML |
2075 | } |
2076 | ||
8cf7c697 ML |
2077 | enum sp_return sp_get_signals(struct sp_port *port, enum sp_signal *signals) |
2078 | { | |
c33efc48 ML |
2079 | TRACE("%p, %p", port, signals); |
2080 | ||
dec10e31 | 2081 | CHECK_OPEN_PORT(); |
8cf7c697 ML |
2082 | |
2083 | if (!signals) | |
c33efc48 | 2084 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 2085 | |
ea667be7 ML |
2086 | DEBUG("Getting control signals for port %s", port->name); |
2087 | ||
8cf7c697 ML |
2088 | *signals = 0; |
2089 | #ifdef _WIN32 | |
2090 | DWORD bits; | |
2091 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 2092 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
2093 | if (bits & MS_CTS_ON) |
2094 | *signals |= SP_SIG_CTS; | |
2095 | if (bits & MS_DSR_ON) | |
2096 | *signals |= SP_SIG_DSR; | |
8cf7c697 | 2097 | if (bits & MS_RLSD_ON) |
a6cda1e8 ML |
2098 | *signals |= SP_SIG_DCD; |
2099 | if (bits & MS_RING_ON) | |
8cf7c697 ML |
2100 | *signals |= SP_SIG_RI; |
2101 | #else | |
2102 | int bits; | |
2103 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 2104 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
2105 | if (bits & TIOCM_CTS) |
2106 | *signals |= SP_SIG_CTS; | |
2107 | if (bits & TIOCM_DSR) | |
2108 | *signals |= SP_SIG_DSR; | |
2109 | if (bits & TIOCM_CAR) | |
2110 | *signals |= SP_SIG_DCD; | |
2111 | if (bits & TIOCM_RNG) | |
2112 | *signals |= SP_SIG_RI; | |
2113 | #endif | |
c33efc48 | 2114 | RETURN_OK(); |
8cf7c697 ML |
2115 | } |
2116 | ||
90cc3ee6 ML |
2117 | enum sp_return sp_start_break(struct sp_port *port) |
2118 | { | |
c33efc48 ML |
2119 | TRACE("%p", port); |
2120 | ||
dec10e31 | 2121 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2122 | #ifdef _WIN32 |
2123 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 2124 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
2125 | #else |
2126 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 2127 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
2128 | #endif |
2129 | ||
c33efc48 | 2130 | RETURN_OK(); |
90cc3ee6 ML |
2131 | } |
2132 | ||
2133 | enum sp_return sp_end_break(struct sp_port *port) | |
2134 | { | |
c33efc48 ML |
2135 | TRACE("%p", port); |
2136 | ||
dec10e31 | 2137 | CHECK_OPEN_PORT(); |
90cc3ee6 ML |
2138 | #ifdef _WIN32 |
2139 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 2140 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
2141 | #else |
2142 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 2143 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
2144 | #endif |
2145 | ||
c33efc48 | 2146 | RETURN_OK(); |
90cc3ee6 ML |
2147 | } |
2148 | ||
74510d4b ML |
2149 | int sp_last_error_code(void) |
2150 | { | |
c33efc48 | 2151 | TRACE(""); |
74510d4b | 2152 | #ifdef _WIN32 |
c33efc48 | 2153 | RETURN_VALUE("%d", GetLastError()); |
74510d4b | 2154 | #else |
c33efc48 | 2155 | RETURN_VALUE("%d", errno); |
74510d4b ML |
2156 | #endif |
2157 | } | |
2158 | ||
74510d4b ML |
2159 | char *sp_last_error_message(void) |
2160 | { | |
c33efc48 ML |
2161 | TRACE(""); |
2162 | ||
74510d4b ML |
2163 | #ifdef _WIN32 |
2164 | LPVOID message; | |
2165 | DWORD error = GetLastError(); | |
2166 | ||
2167 | FormatMessage( | |
2168 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
2169 | FORMAT_MESSAGE_FROM_SYSTEM | | |
2170 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
2171 | NULL, | |
2172 | error, | |
2173 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
2174 | (LPTSTR) &message, | |
2175 | 0, NULL ); | |
2176 | ||
c33efc48 | 2177 | RETURN_VALUE("%s", message); |
74510d4b | 2178 | #else |
c33efc48 | 2179 | RETURN_VALUE("%s", strerror(errno)); |
74510d4b ML |
2180 | #endif |
2181 | } | |
2182 | ||
74510d4b ML |
2183 | void sp_free_error_message(char *message) |
2184 | { | |
c33efc48 ML |
2185 | TRACE("%s", message); |
2186 | ||
74510d4b ML |
2187 | #ifdef _WIN32 |
2188 | LocalFree(message); | |
64eec30d ML |
2189 | #else |
2190 | (void)message; | |
74510d4b | 2191 | #endif |
c33efc48 ML |
2192 | |
2193 | RETURN(); | |
74510d4b | 2194 | } |
863b35e6 ML |
2195 | |
2196 | void sp_set_debug_handler(void (*handler)(const char *format, ...)) | |
2197 | { | |
c33efc48 ML |
2198 | TRACE("%p", handler); |
2199 | ||
863b35e6 | 2200 | sp_debug_handler = handler; |
c33efc48 ML |
2201 | |
2202 | RETURN(); | |
863b35e6 ML |
2203 | } |
2204 | ||
2205 | void sp_default_debug_handler(const char *format, ...) | |
2206 | { | |
2207 | va_list args; | |
2208 | va_start(args, format); | |
2209 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
dd7742fb | 2210 | fputs("sp: ", stderr); |
863b35e6 ML |
2211 | vfprintf(stderr, format, args); |
2212 | } | |
2213 | va_end(args); | |
2214 | } |