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