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Commit | Line | Data |
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74510d4b ML |
1 | /* |
2 | * This file is part of the libserialport project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com> | |
5 | * Copyright (C) 2010-2012 Uwe Hermann <uwe@hermann-uwe.de> | |
6 | * Copyright (C) 2013 Martin Ling <martin-libserialport@earth.li> | |
31b3a8f5 | 7 | * Copyright (C) 2013 Matthias Heidbrink <m-sigrok@heidbrink.biz> |
74510d4b ML |
8 | * |
9 | * This program is free software: you can redistribute it and/or modify | |
10 | * it under the terms of the GNU Lesser General Public License as | |
11 | * published by the Free Software Foundation, either version 3 of the | |
12 | * License, or (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public License | |
20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | #include <string.h> | |
24 | #include <sys/types.h> | |
25 | #include <sys/stat.h> | |
26 | #include <fcntl.h> | |
27 | #include <unistd.h> | |
3b63f34d ML |
28 | #include <stdlib.h> |
29 | #include <errno.h> | |
863b35e6 ML |
30 | #include <stdio.h> |
31 | #include <stdarg.h> | |
74510d4b ML |
32 | #ifdef _WIN32 |
33 | #include <windows.h> | |
3b63f34d | 34 | #include <tchar.h> |
767c5ba8 | 35 | #include <stdio.h> |
74510d4b | 36 | #else |
74510d4b ML |
37 | #include <termios.h> |
38 | #include <sys/ioctl.h> | |
39 | #endif | |
3b63f34d | 40 | #ifdef __APPLE__ |
1ebf4347 ML |
41 | #include <IOKit/IOKitLib.h> |
42 | #include <IOKit/serial/IOSerialKeys.h> | |
31b3a8f5 | 43 | #include <IOKit/serial/ioss.h> |
1ebf4347 | 44 | #include <sys/syslimits.h> |
3b63f34d ML |
45 | #endif |
46 | #ifdef __linux__ | |
47 | #include "libudev.h" | |
4b97c9fc | 48 | #include "linux/serial.h" |
7a6d2196 | 49 | #include "linux_termios.h" |
40978c2b | 50 | #if defined(TCGETX) && defined(TCSETX) && defined(HAVE_TERMIOX) |
68ec29db | 51 | #define USE_TERMIOX |
40978c2b | 52 | #endif |
3b63f34d | 53 | #endif |
74510d4b | 54 | |
71c8a9b9 UH |
55 | #ifndef _WIN32 |
56 | #include "linux_termios.h" | |
57 | #endif | |
58 | ||
f6a1fb65 | 59 | #include "libserialport.h" |
74510d4b | 60 | |
8f189c4c | 61 | struct port_data { |
8094e4a0 ML |
62 | #ifdef _WIN32 |
63 | DCB dcb; | |
64 | #else | |
65 | struct termios term; | |
824dcb45 | 66 | int controlbits; |
68ec29db | 67 | int termiox_supported; |
40978c2b ML |
68 | int flow; |
69 | #endif | |
8094e4a0 ML |
70 | }; |
71 | ||
da2748bf ML |
72 | /* Standard baud rates. */ |
73 | #ifdef _WIN32 | |
74 | #define BAUD_TYPE DWORD | |
75 | #define BAUD(n) {CBR_##n, n} | |
76 | #else | |
77 | #define BAUD_TYPE speed_t | |
78 | #define BAUD(n) {B##n, n} | |
79 | #endif | |
80 | ||
81 | struct std_baudrate { | |
82 | BAUD_TYPE index; | |
83 | int value; | |
84 | }; | |
85 | ||
86 | const struct std_baudrate std_baudrates[] = { | |
87 | #ifdef _WIN32 | |
88 | /* | |
89 | * The baudrates 50/75/134/150/200/1800/230400/460800 do not seem to | |
90 | * have documented CBR_* macros. | |
91 | */ | |
92 | BAUD(110), BAUD(300), BAUD(600), BAUD(1200), BAUD(2400), BAUD(4800), | |
93 | BAUD(9600), BAUD(14400), BAUD(19200), BAUD(38400), BAUD(57600), | |
eac329d2 | 94 | BAUD(115200), BAUD(128000), BAUD(256000), |
da2748bf | 95 | #else |
eac329d2 UH |
96 | BAUD(50), BAUD(75), BAUD(110), BAUD(134), BAUD(150), BAUD(200), |
97 | BAUD(300), BAUD(600), BAUD(1200), BAUD(1800), BAUD(2400), BAUD(4800), | |
98 | BAUD(9600), BAUD(19200), BAUD(38400), BAUD(57600), BAUD(115200), | |
99 | BAUD(230400), | |
da2748bf | 100 | #if !defined(__APPLE__) && !defined(__OpenBSD__) |
eac329d2 | 101 | BAUD(460800), |
da2748bf ML |
102 | #endif |
103 | #endif | |
104 | }; | |
105 | ||
863b35e6 ML |
106 | void (*sp_debug_handler)(const char *format, ...) = sp_default_debug_handler; |
107 | ||
da2748bf ML |
108 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
109 | #define NUM_STD_BAUDRATES ARRAY_SIZE(std_baudrates) | |
110 | ||
7a6d2196 ML |
111 | #define TRY(x) do { int ret = x; if (ret != SP_OK) return ret; } while (0) |
112 | ||
92f756f8 ML |
113 | /* Debug output macros. */ |
114 | #define DEBUG(fmt, ...) do { if (sp_debug_handler) sp_debug_handler(fmt ".\n", ##__VA_ARGS__); } while (0) | |
115 | #define DEBUG_ERROR(err, msg) DEBUG("%s returning " #err ": " msg, __func__) | |
116 | #define DEBUG_FAIL(msg) do { \ | |
117 | char *errmsg = sp_last_error_message(); \ | |
118 | DEBUG("%s returning SP_ERR_FAIL: " msg ": %s", __func__, errmsg); \ | |
119 | sp_free_error_message(errmsg); \ | |
120 | } while (0); | |
121 | #define RETURN() do { DEBUG("%s returning", __func__); return; } while(0) | |
122 | #define RETURN_CODE(x) do { DEBUG("%s returning " #x, __func__); return x; } while (0) | |
123 | #define RETURN_CODEVAL(x) do { \ | |
124 | switch (x) { \ | |
125 | case SP_OK: RETURN_CODE(SP_OK); \ | |
126 | case SP_ERR_ARG: RETURN_CODE(SP_ERR_ARG); \ | |
127 | case SP_ERR_FAIL: RETURN_CODE(SP_ERR_FAIL); \ | |
128 | case SP_ERR_MEM: RETURN_CODE(SP_ERR_MEM); \ | |
129 | case SP_ERR_SUPP: RETURN_CODE(SP_ERR_SUPP); \ | |
130 | } \ | |
131 | } while (0) | |
132 | #define RETURN_OK() RETURN_CODE(SP_OK); | |
133 | #define RETURN_ERROR(err, msg) do { DEBUG_ERROR(err, msg); return err; } while (0) | |
134 | #define RETURN_FAIL(msg) do { DEBUG_FAIL(msg); return SP_ERR_FAIL; } while (0) | |
135 | #define RETURN_VALUE(fmt, x) do { DEBUG("%s returning " fmt, __func__, x); return x; } while (0) | |
136 | #define SET_ERROR(val, err, msg) do { DEBUG_ERROR(err, msg); val = err; } while (0) | |
137 | #define SET_FAIL(val, msg) do { DEBUG_FAIL(msg); val = err; } while (0) | |
138 | #define TRACE(fmt, ...) DEBUG("%s(" fmt ") called", __func__, ##__VA_ARGS__) | |
139 | ||
348e23cc | 140 | /* Helper functions. */ |
348e23cc | 141 | static struct sp_port **list_append(struct sp_port **list, const char *portname); |
eb6ed20f ML |
142 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
143 | struct sp_port_config *config); | |
144 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, | |
145 | const struct sp_port_config *config); | |
80186526 | 146 | |
eb6ed20f | 147 | enum sp_return sp_get_port_by_name(const char *portname, struct sp_port **port_ptr) |
d54e9004 ML |
148 | { |
149 | struct sp_port *port; | |
5919c913 | 150 | int len; |
d54e9004 | 151 | |
c33efc48 ML |
152 | TRACE("%s, %p", portname, port_ptr); |
153 | ||
32b5ac05 | 154 | if (!port_ptr) |
c33efc48 | 155 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 | 156 | |
77f262c4 ML |
157 | *port_ptr = NULL; |
158 | ||
d4babed2 | 159 | if (!portname) |
c33efc48 | 160 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); |
d4babed2 | 161 | |
ea667be7 ML |
162 | DEBUG("Building structure for port %s", portname); |
163 | ||
d54e9004 | 164 | if (!(port = malloc(sizeof(struct sp_port)))) |
c33efc48 | 165 | RETURN_ERROR(SP_ERR_MEM, "Port structure malloc failed"); |
d54e9004 | 166 | |
5919c913 ML |
167 | len = strlen(portname) + 1; |
168 | ||
eac329d2 | 169 | if (!(port->name = malloc(len))) { |
d54e9004 | 170 | free(port); |
c33efc48 | 171 | RETURN_ERROR(SP_ERR_MEM, "Port name malloc failed"); |
d54e9004 ML |
172 | } |
173 | ||
174 | memcpy(port->name, portname, len); | |
175 | ||
8f471c66 ML |
176 | #ifdef _WIN32 |
177 | port->hdl = INVALID_HANDLE_VALUE; | |
178 | #else | |
179 | port->fd = -1; | |
180 | #endif | |
181 | ||
77f262c4 ML |
182 | *port_ptr = port; |
183 | ||
c33efc48 | 184 | RETURN_OK(); |
d54e9004 ML |
185 | } |
186 | ||
eb6ed20f | 187 | enum sp_return sp_copy_port(const struct sp_port *port, struct sp_port **copy_ptr) |
32b5ac05 | 188 | { |
c33efc48 ML |
189 | TRACE("%p, %p", port, copy_ptr); |
190 | ||
32b5ac05 | 191 | if (!copy_ptr) |
c33efc48 | 192 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
32b5ac05 ML |
193 | |
194 | *copy_ptr = NULL; | |
195 | ||
c33efc48 ML |
196 | if (!port) |
197 | RETURN_ERROR(SP_ERR_ARG, "Null port"); | |
198 | ||
199 | if (!port->name) | |
200 | RETURN_ERROR(SP_ERR_ARG, "Null port name"); | |
32b5ac05 | 201 | |
ea667be7 ML |
202 | DEBUG("Copying port structure"); |
203 | ||
c33efc48 | 204 | RETURN_VALUE("%p", sp_get_port_by_name(port->name, copy_ptr)); |
32b5ac05 ML |
205 | } |
206 | ||
e3b2f7a4 ML |
207 | void sp_free_port(struct sp_port *port) |
208 | { | |
c33efc48 ML |
209 | TRACE("%p", port); |
210 | ||
e3b2f7a4 | 211 | if (!port) |
c33efc48 ML |
212 | { |
213 | DEBUG("Null port"); | |
214 | RETURN(); | |
215 | } | |
e3b2f7a4 | 216 | |
ea667be7 ML |
217 | DEBUG("Freeing port structure"); |
218 | ||
e3b2f7a4 ML |
219 | if (port->name) |
220 | free(port->name); | |
221 | ||
222 | free(port); | |
c33efc48 ML |
223 | |
224 | RETURN(); | |
e3b2f7a4 ML |
225 | } |
226 | ||
348e23cc | 227 | static struct sp_port **list_append(struct sp_port **list, const char *portname) |
3b63f34d ML |
228 | { |
229 | void *tmp; | |
230 | unsigned int count; | |
f92f1f0c | 231 | |
3b63f34d | 232 | for (count = 0; list[count]; count++); |
d54e9004 | 233 | if (!(tmp = realloc(list, sizeof(struct sp_port *) * (count + 2)))) |
3b63f34d ML |
234 | goto fail; |
235 | list = tmp; | |
77f262c4 | 236 | if (sp_get_port_by_name(portname, &list[count]) != SP_OK) |
3b63f34d | 237 | goto fail; |
db2794ce | 238 | list[count + 1] = NULL; |
3b63f34d | 239 | return list; |
f92f1f0c | 240 | |
3b63f34d ML |
241 | fail: |
242 | sp_free_port_list(list); | |
243 | return NULL; | |
244 | } | |
245 | ||
eb6ed20f | 246 | enum sp_return sp_list_ports(struct sp_port ***list_ptr) |
3b63f34d | 247 | { |
d54e9004 | 248 | struct sp_port **list; |
77f262c4 | 249 | int ret = SP_OK; |
24c1a4bb | 250 | |
c33efc48 ML |
251 | TRACE("%p", list_ptr); |
252 | ||
ea667be7 ML |
253 | DEBUG("Enumerating ports"); |
254 | ||
d54e9004 | 255 | if (!(list = malloc(sizeof(struct sp_port **)))) |
c33efc48 | 256 | RETURN_ERROR(SP_ERR_MEM, "Port list malloc failed"); |
24c1a4bb ML |
257 | |
258 | list[0] = NULL; | |
3b63f34d ML |
259 | |
260 | #ifdef _WIN32 | |
261 | HKEY key; | |
bdfb5b8c ML |
262 | TCHAR *value, *data; |
263 | DWORD max_value_len, max_data_size, max_data_len; | |
264 | DWORD value_len, data_size, data_len; | |
3b63f34d | 265 | DWORD type, index = 0; |
8b532d9c ML |
266 | char *name; |
267 | int name_len; | |
3b63f34d | 268 | |
ea667be7 | 269 | DEBUG("Opening registry key"); |
3b63f34d | 270 | if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"), |
eac329d2 | 271 | 0, KEY_QUERY_VALUE, &key) != ERROR_SUCCESS) { |
c33efc48 | 272 | SET_FAIL(ret, "RegOpenKeyEx() failed"); |
77f262c4 ML |
273 | goto out_done; |
274 | } | |
ea667be7 | 275 | DEBUG("Querying registry key value and data sizes"); |
3b63f34d | 276 | if (RegQueryInfoKey(key, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
eac329d2 | 277 | &max_value_len, &max_data_size, NULL, NULL) != ERROR_SUCCESS) { |
c33efc48 | 278 | SET_FAIL(ret, "RegQueryInfoKey() failed"); |
3b63f34d | 279 | goto out_close; |
77f262c4 | 280 | } |
3b63f34d | 281 | max_data_len = max_data_size / sizeof(TCHAR); |
eac329d2 | 282 | if (!(value = malloc((max_value_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 283 | SET_ERROR(ret, SP_ERR_MEM, "registry value malloc failed"); |
3b63f34d | 284 | goto out_close; |
77f262c4 | 285 | } |
eac329d2 | 286 | if (!(data = malloc((max_data_len + 1) * sizeof(TCHAR)))) { |
c33efc48 | 287 | SET_ERROR(ret, SP_ERR_MEM, "registry data malloc failed"); |
bdfb5b8c | 288 | goto out_free_value; |
77f262c4 | 289 | } |
ea667be7 | 290 | DEBUG("Iterating over values"); |
3b63f34d | 291 | while ( |
d9573bad | 292 | value_len = max_value_len + 1, |
3b63f34d | 293 | data_size = max_data_size, |
bdfb5b8c | 294 | RegEnumValue(key, index, value, &value_len, |
3b63f34d ML |
295 | NULL, &type, (LPBYTE)data, &data_size) == ERROR_SUCCESS) |
296 | { | |
297 | data_len = data_size / sizeof(TCHAR); | |
298 | data[data_len] = '\0'; | |
8b532d9c ML |
299 | #ifdef UNICODE |
300 | name_len = WideCharToMultiByte(CP_ACP, 0, data, -1, NULL, 0, NULL, NULL) | |
301 | #else | |
302 | name_len = data_len + 1; | |
303 | #endif | |
eac329d2 | 304 | if (!(name = malloc(name_len))) { |
c33efc48 | 305 | SET_ERROR(ret, SP_ERR_MEM, "registry port name malloc failed"); |
8b532d9c | 306 | goto out; |
77f262c4 | 307 | } |
8b532d9c ML |
308 | #ifdef UNICODE |
309 | WideCharToMultiByte(CP_ACP, 0, data, -1, name, name_len, NULL, NULL); | |
310 | #else | |
311 | strcpy(name, data); | |
312 | #endif | |
c33efc48 ML |
313 | if (type == REG_SZ) { |
314 | DEBUG("Found port %s", name); | |
315 | if (!(list = list_append(list, name))) { | |
316 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
317 | goto out; | |
318 | } | |
77f262c4 | 319 | } |
3b63f34d ML |
320 | index++; |
321 | } | |
322 | out: | |
323 | free(data); | |
bdfb5b8c ML |
324 | out_free_value: |
325 | free(value); | |
3b63f34d ML |
326 | out_close: |
327 | RegCloseKey(key); | |
77f262c4 | 328 | out_done: |
3b63f34d ML |
329 | #endif |
330 | #ifdef __APPLE__ | |
331 | mach_port_t master; | |
332 | CFMutableDictionaryRef classes; | |
333 | io_iterator_t iter; | |
334 | char *path; | |
335 | io_object_t port; | |
336 | CFTypeRef cf_path; | |
337 | Boolean result; | |
338 | ||
ea667be7 | 339 | DEBUG("Getting IOKit master port"); |
eac329d2 | 340 | if (IOMasterPort(MACH_PORT_NULL, &master) != KERN_SUCCESS) { |
c33efc48 | 341 | SET_FAIL(ret, "IOMasterPort() failed"); |
77f262c4 ML |
342 | goto out_done; |
343 | } | |
3b63f34d | 344 | |
ea667be7 | 345 | DEBUG("Creating matching dictionary"); |
eac329d2 | 346 | if (!(classes = IOServiceMatching(kIOSerialBSDServiceValue))) { |
c33efc48 | 347 | SET_FAIL(ret, "IOServiceMatching() failed"); |
77f262c4 ML |
348 | goto out_done; |
349 | } | |
3b63f34d ML |
350 | |
351 | CFDictionarySetValue(classes, | |
352 | CFSTR(kIOSerialBSDTypeKey), CFSTR(kIOSerialBSDAllTypes)); | |
353 | ||
ea667be7 | 354 | DEBUG("Getting matching services"); |
eac329d2 | 355 | if (IOServiceGetMatchingServices(master, classes, &iter) != KERN_SUCCESS) { |
c33efc48 | 356 | SET_FAIL(ret, "IOServiceGetMatchingServices() failed"); |
77f262c4 ML |
357 | goto out_done; |
358 | } | |
3b63f34d | 359 | |
eac329d2 | 360 | if (!(path = malloc(PATH_MAX))) { |
c33efc48 | 361 | SET_ERROR(ret, SP_ERR_MEM, "device path malloc failed"); |
3b63f34d | 362 | goto out_release; |
77f262c4 | 363 | } |
3b63f34d | 364 | |
ea667be7 | 365 | DEBUG("Iterating over results"); |
1ebf4347 | 366 | while ((port = IOIteratorNext(iter))) { |
3b63f34d ML |
367 | cf_path = IORegistryEntryCreateCFProperty(port, |
368 | CFSTR(kIOCalloutDeviceKey), kCFAllocatorDefault, 0); | |
369 | if (cf_path) { | |
370 | result = CFStringGetCString(cf_path, | |
371 | path, PATH_MAX, kCFStringEncodingASCII); | |
372 | CFRelease(cf_path); | |
c33efc48 ML |
373 | if (result) { |
374 | DEBUG("Found port %s", path); | |
375 | if (!(list = list_append(list, path))) { | |
376 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); | |
377 | IOObjectRelease(port); | |
378 | goto out; | |
379 | } | |
77f262c4 | 380 | } |
3b63f34d ML |
381 | } |
382 | IOObjectRelease(port); | |
383 | } | |
3b63f34d ML |
384 | out: |
385 | free(path); | |
386 | out_release: | |
387 | IOObjectRelease(iter); | |
77f262c4 | 388 | out_done: |
3b63f34d ML |
389 | #endif |
390 | #ifdef __linux__ | |
391 | struct udev *ud; | |
392 | struct udev_enumerate *ud_enumerate; | |
393 | struct udev_list_entry *ud_list; | |
394 | struct udev_list_entry *ud_entry; | |
395 | const char *path; | |
08fe0bdb | 396 | struct udev_device *ud_dev, *ud_parent; |
3b63f34d | 397 | const char *name; |
4b97c9fc ML |
398 | const char *driver; |
399 | int fd, ioctl_result; | |
400 | struct serial_struct serial_info; | |
3b63f34d | 401 | |
ea667be7 | 402 | DEBUG("Enumerating tty devices"); |
3b63f34d ML |
403 | ud = udev_new(); |
404 | ud_enumerate = udev_enumerate_new(ud); | |
405 | udev_enumerate_add_match_subsystem(ud_enumerate, "tty"); | |
406 | udev_enumerate_scan_devices(ud_enumerate); | |
407 | ud_list = udev_enumerate_get_list_entry(ud_enumerate); | |
ea667be7 | 408 | DEBUG("Iterating over results"); |
eac329d2 | 409 | udev_list_entry_foreach(ud_entry, ud_list) { |
3b63f34d | 410 | path = udev_list_entry_get_name(ud_entry); |
ea667be7 | 411 | DEBUG("Found device %s", path); |
3b63f34d | 412 | ud_dev = udev_device_new_from_syspath(ud, path); |
08fe0bdb ML |
413 | /* If there is no parent device, this is a virtual tty. */ |
414 | ud_parent = udev_device_get_parent(ud_dev); | |
eac329d2 | 415 | if (ud_parent == NULL) { |
ea667be7 | 416 | DEBUG("No parent device, assuming virtual tty"); |
08fe0bdb ML |
417 | udev_device_unref(ud_dev); |
418 | continue; | |
419 | } | |
3b63f34d | 420 | name = udev_device_get_devnode(ud_dev); |
4b97c9fc ML |
421 | /* The serial8250 driver has a hardcoded number of ports. |
422 | * The only way to tell which actually exist on a given system | |
423 | * is to try to open them and make an ioctl call. */ | |
424 | driver = udev_device_get_driver(ud_parent); | |
eac329d2 | 425 | if (driver && !strcmp(driver, "serial8250")) { |
ea667be7 ML |
426 | DEBUG("serial8250 device, attempting to open"); |
427 | if ((fd = open(name, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) { | |
428 | DEBUG("open failed, skipping"); | |
4b97c9fc | 429 | goto skip; |
ea667be7 | 430 | } |
4b97c9fc ML |
431 | ioctl_result = ioctl(fd, TIOCGSERIAL, &serial_info); |
432 | close(fd); | |
ea667be7 ML |
433 | if (ioctl_result != 0) { |
434 | DEBUG("ioctl failed, skipping"); | |
4b97c9fc | 435 | goto skip; |
ea667be7 ML |
436 | } |
437 | if (serial_info.type == PORT_UNKNOWN) { | |
438 | DEBUG("port type is unknown, skipping"); | |
4b97c9fc | 439 | goto skip; |
ea667be7 | 440 | } |
4b97c9fc | 441 | } |
c33efc48 | 442 | DEBUG("Found port %s", name); |
348e23cc | 443 | list = list_append(list, name); |
4b97c9fc | 444 | skip: |
3b63f34d | 445 | udev_device_unref(ud_dev); |
eac329d2 | 446 | if (!list) { |
c33efc48 | 447 | SET_ERROR(ret, SP_ERR_MEM, "list append failed"); |
3b63f34d | 448 | goto out; |
77f262c4 | 449 | } |
3b63f34d ML |
450 | } |
451 | out: | |
452 | udev_enumerate_unref(ud_enumerate); | |
453 | udev_unref(ud); | |
3b63f34d | 454 | #endif |
77f262c4 | 455 | |
eac329d2 | 456 | if (ret == SP_OK) { |
77f262c4 | 457 | *list_ptr = list; |
c33efc48 | 458 | RETURN_OK(); |
eac329d2 | 459 | } else { |
77f262c4 ML |
460 | if (list) |
461 | sp_free_port_list(list); | |
77f262c4 | 462 | *list_ptr = NULL; |
c33efc48 | 463 | return ret; |
77f262c4 | 464 | } |
3b63f34d ML |
465 | } |
466 | ||
d54e9004 | 467 | void sp_free_port_list(struct sp_port **list) |
3b63f34d ML |
468 | { |
469 | unsigned int i; | |
f92f1f0c | 470 | |
c33efc48 ML |
471 | TRACE("%p", list); |
472 | ||
ea667be7 ML |
473 | DEBUG("Freeing port list"); |
474 | ||
3b63f34d | 475 | for (i = 0; list[i]; i++) |
e3b2f7a4 | 476 | sp_free_port(list[i]); |
3b63f34d | 477 | free(list); |
c33efc48 ML |
478 | |
479 | RETURN(); | |
3b63f34d ML |
480 | } |
481 | ||
74510d4b | 482 | #ifdef _WIN32 |
c33efc48 ML |
483 | #define CHECK_PORT() do { \ |
484 | if (port == NULL) \ | |
485 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
486 | if (port->hdl == INVALID_HANDLE_VALUE) \ | |
487 | RETURN_ERROR(SP_ERR_ARG, "Invalid port handle"); \ | |
488 | } while(0); | |
74510d4b | 489 | #else |
c33efc48 ML |
490 | #define CHECK_PORT() do { \ |
491 | if (port == NULL) \ | |
492 | RETURN_ERROR(SP_ERR_ARG, "Null port"); \ | |
493 | if (port->fd < 0) \ | |
494 | RETURN_ERROR(SP_ERR_ARG, "Invalid port fd"); \ | |
495 | } while(0); | |
74510d4b | 496 | #endif |
74510d4b | 497 | |
eb6ed20f | 498 | enum sp_return sp_open(struct sp_port *port, enum sp_mode flags) |
74510d4b | 499 | { |
c33efc48 ML |
500 | TRACE("%p, %x", port, flags); |
501 | ||
74510d4b | 502 | if (!port) |
c33efc48 | 503 | RETURN_ERROR(SP_ERR_ARG, "Null port"); |
74510d4b | 504 | |
ea667be7 ML |
505 | DEBUG("Opening port %s", port->name); |
506 | ||
74510d4b ML |
507 | #ifdef _WIN32 |
508 | DWORD desired_access = 0, flags_and_attributes = 0; | |
99945a1f ML |
509 | char *escaped_port_name; |
510 | ||
511 | /* Prefix port name with '\\.\' to work with ports above COM9. */ | |
512 | if (!(escaped_port_name = malloc(strlen(port->name + 5)))) | |
c33efc48 | 513 | RETURN_ERROR(SP_ERR_MEM, "Escaped port name malloc failed"); |
99945a1f ML |
514 | sprintf(escaped_port_name, "\\\\.\\%s", port->name); |
515 | ||
74510d4b | 516 | /* Map 'flags' to the OS-specific settings. */ |
74510d4b | 517 | flags_and_attributes = FILE_ATTRIBUTE_NORMAL; |
a036341b ML |
518 | if (flags & SP_MODE_READ) |
519 | desired_access |= GENERIC_READ; | |
520 | if (flags & SP_MODE_WRITE) | |
74510d4b ML |
521 | desired_access |= GENERIC_WRITE; |
522 | if (flags & SP_MODE_NONBLOCK) | |
523 | flags_and_attributes |= FILE_FLAG_OVERLAPPED; | |
524 | ||
99945a1f | 525 | port->hdl = CreateFile(escaped_port_name, desired_access, 0, 0, |
74510d4b | 526 | OPEN_EXISTING, flags_and_attributes, 0); |
99945a1f ML |
527 | |
528 | free(escaped_port_name); | |
529 | ||
74510d4b | 530 | if (port->hdl == INVALID_HANDLE_VALUE) |
c33efc48 | 531 | RETURN_FAIL("CreateFile() failed"); |
74510d4b ML |
532 | #else |
533 | int flags_local = 0; | |
8f189c4c | 534 | struct port_data data; |
e33ab9aa ML |
535 | struct sp_port_config config; |
536 | int ret; | |
f92f1f0c | 537 | |
74510d4b | 538 | /* Map 'flags' to the OS-specific settings. */ |
a036341b | 539 | if (flags & (SP_MODE_READ | SP_MODE_WRITE)) |
74510d4b | 540 | flags_local |= O_RDWR; |
a036341b | 541 | else if (flags & SP_MODE_READ) |
74510d4b | 542 | flags_local |= O_RDONLY; |
a036341b ML |
543 | else if (flags & SP_MODE_WRITE) |
544 | flags_local |= O_WRONLY; | |
74510d4b ML |
545 | if (flags & SP_MODE_NONBLOCK) |
546 | flags_local |= O_NONBLOCK; | |
547 | ||
548 | if ((port->fd = open(port->name, flags_local)) < 0) | |
c33efc48 | 549 | RETURN_FAIL("open() failed"); |
9cb98459 | 550 | |
e33ab9aa ML |
551 | ret = get_config(port, &data, &config); |
552 | ||
eac329d2 | 553 | if (ret < 0) { |
e33ab9aa | 554 | sp_close(port); |
c33efc48 | 555 | RETURN_CODEVAL(ret); |
e33ab9aa | 556 | } |
9cb98459 ML |
557 | |
558 | /* Turn off all serial port cooking. */ | |
559 | data.term.c_iflag &= ~(ISTRIP | INLCR | ICRNL); | |
560 | data.term.c_oflag &= ~(ONLCR | OCRNL | ONOCR); | |
561 | #if !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__) | |
562 | data.term.c_oflag &= ~OFILL; | |
563 | #endif | |
564 | /* Disable canonical mode, and don't echo input characters. */ | |
565 | data.term.c_lflag &= ~(ICANON | ECHO); | |
566 | ||
567 | /* Ignore modem status lines; enable receiver */ | |
568 | data.term.c_cflag |= (CLOCAL | CREAD); | |
569 | ||
e33ab9aa ML |
570 | ret = set_config(port, &data, &config); |
571 | ||
eac329d2 | 572 | if (ret < 0) { |
e33ab9aa | 573 | sp_close(port); |
c33efc48 | 574 | RETURN_CODEVAL(ret); |
e33ab9aa | 575 | } |
74510d4b ML |
576 | #endif |
577 | ||
c33efc48 | 578 | RETURN_OK(); |
74510d4b ML |
579 | } |
580 | ||
eb6ed20f | 581 | enum sp_return sp_close(struct sp_port *port) |
74510d4b | 582 | { |
c33efc48 ML |
583 | TRACE("%p", port); |
584 | ||
74510d4b ML |
585 | CHECK_PORT(); |
586 | ||
ea667be7 ML |
587 | DEBUG("Closing port %s", port->name); |
588 | ||
74510d4b ML |
589 | #ifdef _WIN32 |
590 | /* Returns non-zero upon success, 0 upon failure. */ | |
591 | if (CloseHandle(port->hdl) == 0) | |
c33efc48 | 592 | RETURN_FAIL("CloseHandle() failed"); |
8f471c66 | 593 | port->hdl = INVALID_HANDLE_VALUE; |
74510d4b ML |
594 | #else |
595 | /* Returns 0 upon success, -1 upon failure. */ | |
596 | if (close(port->fd) == -1) | |
c33efc48 | 597 | RETURN_FAIL("close() failed"); |
8f471c66 | 598 | port->fd = -1; |
74510d4b ML |
599 | #endif |
600 | ||
c33efc48 | 601 | RETURN_OK(); |
74510d4b ML |
602 | } |
603 | ||
fd8fd11a | 604 | enum sp_return sp_flush(struct sp_port *port, enum sp_buffer buffers) |
74510d4b | 605 | { |
c33efc48 ML |
606 | TRACE("%p, %x", port, buffers); |
607 | ||
74510d4b ML |
608 | CHECK_PORT(); |
609 | ||
ea667be7 ML |
610 | const char *buffer_names[] = {"input", "output", "both"}; |
611 | ||
612 | DEBUG("Flushing %s buffers on port %s", buffer_names[buffers], port->name); | |
613 | ||
74510d4b | 614 | #ifdef _WIN32 |
fd8fd11a ML |
615 | DWORD flags = 0; |
616 | if (buffers & SP_BUF_INPUT) | |
617 | flags |= PURGE_RXCLEAR; | |
618 | if (buffers & SP_BUF_OUTPUT) | |
619 | flags |= PURGE_TXCLEAR; | |
620 | ||
74510d4b | 621 | /* Returns non-zero upon success, 0 upon failure. */ |
fd8fd11a | 622 | if (PurgeComm(port->hdl, flags) == 0) |
c33efc48 | 623 | RETURN_FAIL("PurgeComm() failed"); |
74510d4b | 624 | #else |
fd8fd11a ML |
625 | int flags = 0; |
626 | if (buffers & SP_BUF_BOTH) | |
627 | flags = TCIOFLUSH; | |
628 | else if (buffers & SP_BUF_INPUT) | |
629 | flags = TCIFLUSH; | |
82f424e6 | 630 | else if (buffers & SP_BUF_OUTPUT) |
fd8fd11a ML |
631 | flags = TCOFLUSH; |
632 | ||
74510d4b | 633 | /* Returns 0 upon success, -1 upon failure. */ |
fd8fd11a | 634 | if (tcflush(port->fd, flags) < 0) |
c33efc48 | 635 | RETURN_FAIL("tcflush() failed"); |
74510d4b | 636 | #endif |
c33efc48 | 637 | RETURN_OK(); |
74510d4b ML |
638 | } |
639 | ||
69a3739c ML |
640 | enum sp_return sp_drain(struct sp_port *port) |
641 | { | |
c33efc48 ML |
642 | TRACE("%p", port); |
643 | ||
69a3739c ML |
644 | CHECK_PORT(); |
645 | ||
ea667be7 ML |
646 | DEBUG("Draining port %s", port->name); |
647 | ||
69a3739c ML |
648 | #ifdef _WIN32 |
649 | /* Returns non-zero upon success, 0 upon failure. */ | |
650 | if (FlushFileBuffers(port->hdl) == 0) | |
c33efc48 | 651 | RETURN_FAIL("FlushFileBuffers() failed"); |
69a3739c ML |
652 | #else |
653 | /* Returns 0 upon success, -1 upon failure. */ | |
654 | if (tcdrain(port->fd) < 0) | |
c33efc48 | 655 | RETURN_FAIL("tcdrain() failed"); |
69a3739c ML |
656 | #endif |
657 | ||
c33efc48 | 658 | RETURN_OK(); |
69a3739c ML |
659 | } |
660 | ||
eb6ed20f | 661 | enum sp_return sp_write(struct sp_port *port, const void *buf, size_t count) |
74510d4b | 662 | { |
c33efc48 ML |
663 | TRACE("%p, %p, %d", port, buf, count); |
664 | ||
74510d4b ML |
665 | CHECK_PORT(); |
666 | ||
667 | if (!buf) | |
c33efc48 | 668 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 669 | |
ea667be7 ML |
670 | DEBUG("Writing up to %d bytes to port %s", count, port->name); |
671 | ||
74510d4b ML |
672 | #ifdef _WIN32 |
673 | DWORD written = 0; | |
f92f1f0c | 674 | |
74510d4b ML |
675 | /* Returns non-zero upon success, 0 upon failure. */ |
676 | if (WriteFile(port->hdl, buf, count, &written, NULL) == 0) | |
c33efc48 ML |
677 | RETURN_FAIL("WriteFile() failed"); |
678 | RETURN_VALUE("%d", written); | |
74510d4b ML |
679 | #else |
680 | /* Returns the number of bytes written, or -1 upon failure. */ | |
681 | ssize_t written = write(port->fd, buf, count); | |
f92f1f0c | 682 | |
74510d4b | 683 | if (written < 0) |
c33efc48 | 684 | RETURN_FAIL("write() failed"); |
74510d4b | 685 | else |
c33efc48 | 686 | RETURN_VALUE("%d", written); |
74510d4b ML |
687 | #endif |
688 | } | |
689 | ||
eb6ed20f | 690 | enum sp_return sp_read(struct sp_port *port, void *buf, size_t count) |
74510d4b | 691 | { |
c33efc48 ML |
692 | TRACE("%p, %p, %d", port, buf, count); |
693 | ||
74510d4b ML |
694 | CHECK_PORT(); |
695 | ||
696 | if (!buf) | |
c33efc48 | 697 | RETURN_ERROR(SP_ERR_ARG, "Null buffer"); |
74510d4b | 698 | |
ea667be7 ML |
699 | DEBUG("Reading up to %d bytes from port %s", count, port->name); |
700 | ||
74510d4b ML |
701 | #ifdef _WIN32 |
702 | DWORD bytes_read = 0; | |
f92f1f0c | 703 | |
74510d4b ML |
704 | /* Returns non-zero upon success, 0 upon failure. */ |
705 | if (ReadFile(port->hdl, buf, count, &bytes_read, NULL) == 0) | |
c33efc48 ML |
706 | RETURN_FAIL("ReadFile() failed"); |
707 | RETURN_VALUE("%d", bytes_read); | |
74510d4b ML |
708 | #else |
709 | ssize_t bytes_read; | |
f92f1f0c | 710 | |
74510d4b ML |
711 | /* Returns the number of bytes read, or -1 upon failure. */ |
712 | if ((bytes_read = read(port->fd, buf, count)) < 0) | |
c33efc48 ML |
713 | RETURN_FAIL("read() failed"); |
714 | RETURN_VALUE("%d", bytes_read); | |
74510d4b ML |
715 | #endif |
716 | } | |
717 | ||
7a6d2196 ML |
718 | #ifdef __linux__ |
719 | static enum sp_return get_baudrate(int fd, int *baudrate) | |
720 | { | |
721 | void *data; | |
722 | ||
c33efc48 ML |
723 | TRACE("%d, %p", fd, baudrate); |
724 | ||
ea667be7 ML |
725 | DEBUG("Getting baud rate"); |
726 | ||
7a6d2196 | 727 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 728 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 729 | |
8d43110a ML |
730 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
731 | free(data); | |
c33efc48 | 732 | RETURN_FAIL("getting termios failed"); |
8d43110a | 733 | } |
7a6d2196 ML |
734 | |
735 | *baudrate = get_termios_speed(data); | |
736 | ||
8d43110a ML |
737 | free(data); |
738 | ||
c33efc48 | 739 | RETURN_OK(); |
7a6d2196 ML |
740 | } |
741 | ||
742 | static enum sp_return set_baudrate(int fd, int baudrate) | |
743 | { | |
744 | void *data; | |
745 | ||
c33efc48 ML |
746 | TRACE("%d, %d", fd, baudrate); |
747 | ||
ea667be7 ML |
748 | DEBUG("Getting baud rate"); |
749 | ||
7a6d2196 | 750 | if (!(data = malloc(get_termios_size()))) |
c33efc48 | 751 | RETURN_ERROR(SP_ERR_MEM, "termios malloc failed"); |
7a6d2196 | 752 | |
8d43110a ML |
753 | if (ioctl(fd, get_termios_get_ioctl(), data) < 0) { |
754 | free(data); | |
c33efc48 | 755 | RETURN_FAIL("getting termios failed"); |
8d43110a | 756 | } |
7a6d2196 | 757 | |
ea667be7 ML |
758 | DEBUG("Setting baud rate"); |
759 | ||
7a6d2196 ML |
760 | set_termios_speed(data, baudrate); |
761 | ||
8d43110a ML |
762 | if (ioctl(fd, get_termios_set_ioctl(), data) < 0) { |
763 | free(data); | |
c33efc48 | 764 | RETURN_FAIL("setting termios failed"); |
8d43110a ML |
765 | } |
766 | ||
767 | free(data); | |
7a6d2196 | 768 | |
c33efc48 | 769 | RETURN_OK(); |
7a6d2196 | 770 | } |
40978c2b ML |
771 | |
772 | #ifdef USE_TERMIOX | |
773 | static enum sp_return get_flow(int fd, int *flow) | |
774 | { | |
775 | void *data; | |
776 | ||
c33efc48 ML |
777 | TRACE("%d, %p", fd, flow); |
778 | ||
ea667be7 ML |
779 | DEBUG("Getting advanced flow control"); |
780 | ||
40978c2b | 781 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 782 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 783 | |
8d43110a ML |
784 | if (ioctl(fd, TCGETX, data) < 0) { |
785 | free(data); | |
c33efc48 | 786 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 787 | } |
40978c2b ML |
788 | |
789 | *flow = get_termiox_flow(data); | |
790 | ||
8d43110a ML |
791 | free(data); |
792 | ||
c33efc48 | 793 | RETURN_OK(); |
40978c2b ML |
794 | } |
795 | ||
796 | static enum sp_return set_flow(int fd, int flow) | |
797 | { | |
798 | void *data; | |
799 | ||
c33efc48 ML |
800 | TRACE("%d, %d", fd, flow); |
801 | ||
ea667be7 ML |
802 | DEBUG("Getting advanced flow control"); |
803 | ||
40978c2b | 804 | if (!(data = malloc(get_termiox_size()))) |
c33efc48 | 805 | RETURN_ERROR(SP_ERR_MEM, "termiox malloc failed"); |
40978c2b | 806 | |
8d43110a ML |
807 | if (ioctl(fd, TCGETX, data) < 0) { |
808 | free(data); | |
c33efc48 | 809 | RETURN_FAIL("getting termiox failed"); |
8d43110a | 810 | } |
40978c2b | 811 | |
ea667be7 ML |
812 | DEBUG("Setting advanced flow control"); |
813 | ||
40978c2b ML |
814 | set_termiox_flow(data, flow); |
815 | ||
8d43110a ML |
816 | if (ioctl(fd, TCSETX, data) < 0) { |
817 | free(data); | |
c33efc48 | 818 | RETURN_FAIL("setting termiox failed"); |
8d43110a ML |
819 | } |
820 | ||
821 | free(data); | |
40978c2b | 822 | |
c33efc48 | 823 | RETURN_OK(); |
40978c2b ML |
824 | } |
825 | #endif /* USE_TERMIOX */ | |
826 | #endif /* __linux__ */ | |
7a6d2196 | 827 | |
eb6ed20f ML |
828 | static enum sp_return get_config(struct sp_port *port, struct port_data *data, |
829 | struct sp_port_config *config) | |
8094e4a0 | 830 | { |
da2748bf | 831 | unsigned int i; |
cbf628c7 | 832 | |
c33efc48 ML |
833 | TRACE("%p, %p, %p", port, data, config); |
834 | ||
ea667be7 ML |
835 | DEBUG("Getting configuration for port %s", port->name); |
836 | ||
8094e4a0 | 837 | #ifdef _WIN32 |
e33ab9aa | 838 | if (!GetCommState(port->hdl, &data->dcb)) |
c33efc48 | 839 | RETURN_FAIL("GetCommState() failed"); |
8094e4a0 | 840 | |
067417af | 841 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 842 | if (data->dcb.BaudRate == std_baudrates[i].index) { |
067417af ML |
843 | config->baudrate = std_baudrates[i].value; |
844 | break; | |
845 | } | |
846 | } | |
847 | ||
848 | if (i == NUM_STD_BAUDRATES) | |
849 | /* BaudRate field can be either an index or a custom baud rate. */ | |
e33ab9aa | 850 | config->baudrate = data->dcb.BaudRate; |
067417af | 851 | |
e33ab9aa | 852 | config->bits = data->dcb.ByteSize; |
067417af | 853 | |
e33ab9aa ML |
854 | if (data->dcb.fParity) |
855 | switch (data->dcb.Parity) { | |
067417af ML |
856 | case NOPARITY: |
857 | config->parity = SP_PARITY_NONE; | |
858 | break; | |
859 | case EVENPARITY: | |
860 | config->parity = SP_PARITY_EVEN; | |
861 | break; | |
862 | case ODDPARITY: | |
863 | config->parity = SP_PARITY_ODD; | |
864 | break; | |
865 | default: | |
866 | config->parity = -1; | |
867 | } | |
868 | else | |
869 | config->parity = SP_PARITY_NONE; | |
870 | ||
e33ab9aa | 871 | switch (data->dcb.StopBits) { |
067417af ML |
872 | case ONESTOPBIT: |
873 | config->stopbits = 1; | |
874 | break; | |
875 | case TWOSTOPBITS: | |
876 | config->stopbits = 2; | |
877 | break; | |
878 | default: | |
879 | config->stopbits = -1; | |
880 | } | |
881 | ||
e33ab9aa | 882 | switch (data->dcb.fRtsControl) { |
eac329d2 UH |
883 | case RTS_CONTROL_DISABLE: |
884 | config->rts = SP_RTS_OFF; | |
885 | break; | |
886 | case RTS_CONTROL_ENABLE: | |
887 | config->rts = SP_RTS_ON; | |
888 | break; | |
889 | case RTS_CONTROL_HANDSHAKE: | |
890 | config->rts = SP_RTS_FLOW_CONTROL; | |
891 | break; | |
892 | default: | |
893 | config->rts = -1; | |
067417af ML |
894 | } |
895 | ||
e33ab9aa | 896 | config->cts = data->dcb.fOutxCtsFlow ? SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; |
067417af | 897 | |
e33ab9aa | 898 | switch (data->dcb.fDtrControl) { |
eac329d2 UH |
899 | case DTR_CONTROL_DISABLE: |
900 | config->dtr = SP_DTR_OFF; | |
901 | break; | |
902 | case DTR_CONTROL_ENABLE: | |
903 | config->dtr = SP_DTR_ON; | |
904 | break; | |
905 | case DTR_CONTROL_HANDSHAKE: | |
906 | config->dtr = SP_DTR_FLOW_CONTROL; | |
907 | break; | |
908 | default: | |
909 | config->dtr = -1; | |
067417af ML |
910 | } |
911 | ||
e33ab9aa ML |
912 | config->dsr = data->dcb.fOutxDsrFlow ? SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; |
913 | ||
c6754b45 ML |
914 | if (data->dcb.fInX) { |
915 | if (data->dcb.fOutX) | |
916 | config->xon_xoff = SP_XONXOFF_INOUT; | |
917 | else | |
918 | config->xon_xoff = SP_XONXOFF_IN; | |
919 | } else { | |
920 | if (data->dcb.fOutX) | |
921 | config->xon_xoff = SP_XONXOFF_OUT; | |
922 | else | |
923 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
924 | } | |
925 | ||
e33ab9aa ML |
926 | #else // !_WIN32 |
927 | ||
928 | if (tcgetattr(port->fd, &data->term) < 0) | |
c33efc48 | 929 | RETURN_FAIL("tcgetattr() failed"); |
e33ab9aa ML |
930 | |
931 | if (ioctl(port->fd, TIOCMGET, &data->controlbits) < 0) | |
c33efc48 | 932 | RETURN_FAIL("TIOCMGET ioctl failed"); |
40978c2b ML |
933 | |
934 | #ifdef USE_TERMIOX | |
68ec29db ML |
935 | int ret = get_flow(port->fd, &data->flow); |
936 | ||
937 | if (ret == SP_ERR_FAIL && errno == EINVAL) | |
938 | data->termiox_supported = 0; | |
939 | else if (ret < 0) | |
c33efc48 | 940 | RETURN_CODEVAL(ret); |
68ec29db ML |
941 | else |
942 | data->termiox_supported = 1; | |
943 | #else | |
944 | data->termiox_supported = 0; | |
40978c2b ML |
945 | #endif |
946 | ||
067417af | 947 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
e33ab9aa | 948 | if (cfgetispeed(&data->term) == std_baudrates[i].index) { |
067417af ML |
949 | config->baudrate = std_baudrates[i].value; |
950 | break; | |
951 | } | |
952 | } | |
953 | ||
31b3a8f5 MH |
954 | if (i == NUM_STD_BAUDRATES) { |
955 | #ifdef __APPLE__ | |
956 | config->baudrate = (int)data->term.c_ispeed; | |
7a6d2196 ML |
957 | #elif defined(__linux__) |
958 | TRY(get_baudrate(port->fd, &config->baudrate)); | |
31b3a8f5 | 959 | #else |
067417af | 960 | config->baudrate = -1; |
31b3a8f5 MH |
961 | #endif |
962 | } | |
067417af | 963 | |
e33ab9aa | 964 | switch (data->term.c_cflag & CSIZE) { |
067417af ML |
965 | case CS8: |
966 | config->bits = 8; | |
967 | break; | |
968 | case CS7: | |
969 | config->bits = 7; | |
970 | break; | |
971 | case CS6: | |
972 | config->bits = 6; | |
973 | break; | |
974 | case CS5: | |
975 | config->bits = 5; | |
976 | break; | |
977 | default: | |
978 | config->bits = -1; | |
979 | } | |
980 | ||
e33ab9aa | 981 | if (!(data->term.c_cflag & PARENB) && (data->term.c_iflag & IGNPAR)) |
067417af | 982 | config->parity = SP_PARITY_NONE; |
e33ab9aa | 983 | else if (!(data->term.c_cflag & PARENB) || (data->term.c_iflag & IGNPAR)) |
067417af ML |
984 | config->parity = -1; |
985 | else | |
e33ab9aa | 986 | config->parity = (data->term.c_cflag & PARODD) ? SP_PARITY_ODD : SP_PARITY_EVEN; |
067417af | 987 | |
e33ab9aa | 988 | config->stopbits = (data->term.c_cflag & CSTOPB) ? 2 : 1; |
067417af | 989 | |
e33ab9aa | 990 | if (data->term.c_cflag & CRTSCTS) { |
067417af ML |
991 | config->rts = SP_RTS_FLOW_CONTROL; |
992 | config->cts = SP_CTS_FLOW_CONTROL; | |
993 | } else { | |
68ec29db | 994 | if (data->termiox_supported && data->flow & RTS_FLOW) |
40978c2b ML |
995 | config->rts = SP_RTS_FLOW_CONTROL; |
996 | else | |
997 | config->rts = (data->controlbits & TIOCM_RTS) ? SP_RTS_ON : SP_RTS_OFF; | |
998 | ||
68ec29db ML |
999 | config->cts = (data->termiox_supported && data->flow & CTS_FLOW) ? |
1000 | SP_CTS_FLOW_CONTROL : SP_CTS_IGNORE; | |
067417af ML |
1001 | } |
1002 | ||
68ec29db | 1003 | if (data->termiox_supported && data->flow & DTR_FLOW) |
40978c2b ML |
1004 | config->dtr = SP_DTR_FLOW_CONTROL; |
1005 | else | |
1006 | config->dtr = (data->controlbits & TIOCM_DTR) ? SP_DTR_ON : SP_DTR_OFF; | |
1007 | ||
68ec29db ML |
1008 | config->dsr = (data->termiox_supported && data->flow & DSR_FLOW) ? |
1009 | SP_DSR_FLOW_CONTROL : SP_DSR_IGNORE; | |
705bdc69 | 1010 | |
e29b93a5 ML |
1011 | if (data->term.c_iflag & IXOFF) { |
1012 | if (data->term.c_iflag & IXON) | |
1013 | config->xon_xoff = SP_XONXOFF_INOUT; | |
1014 | else | |
1015 | config->xon_xoff = SP_XONXOFF_IN; | |
1016 | } else { | |
1017 | if (data->term.c_iflag & IXON) | |
1018 | config->xon_xoff = SP_XONXOFF_OUT; | |
1019 | else | |
1020 | config->xon_xoff = SP_XONXOFF_DISABLED; | |
1021 | } | |
067417af ML |
1022 | #endif |
1023 | ||
c33efc48 | 1024 | RETURN_OK(); |
067417af ML |
1025 | } |
1026 | ||
7a6d2196 | 1027 | static enum sp_return set_config(struct sp_port *port, struct port_data *data, |
eb6ed20f | 1028 | const struct sp_port_config *config) |
18fc2dd1 | 1029 | { |
e33ab9aa | 1030 | unsigned int i; |
31b3a8f5 MH |
1031 | #ifdef __APPLE__ |
1032 | BAUD_TYPE baud_nonstd; | |
1033 | ||
1034 | baud_nonstd = B0; | |
1035 | #endif | |
7a6d2196 ML |
1036 | #ifdef __linux__ |
1037 | int baud_nonstd = 0; | |
1038 | #endif | |
18fc2dd1 | 1039 | |
c33efc48 ML |
1040 | TRACE("%p, %p, %p", port, data, config); |
1041 | ||
ea667be7 ML |
1042 | DEBUG("Setting configuration for port %s", port->name); |
1043 | ||
e33ab9aa | 1044 | #ifdef _WIN32 |
eac329d2 | 1045 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1046 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1047 | if (config->baudrate == std_baudrates[i].value) { | |
1048 | data->dcb.BaudRate = std_baudrates[i].index; | |
1049 | break; | |
1050 | } | |
1051 | } | |
18fc2dd1 | 1052 | |
e33ab9aa ML |
1053 | if (i == NUM_STD_BAUDRATES) |
1054 | data->dcb.BaudRate = config->baudrate; | |
1055 | } | |
18fc2dd1 | 1056 | |
e33ab9aa ML |
1057 | if (config->bits >= 0) |
1058 | data->dcb.ByteSize = config->bits; | |
1059 | ||
1060 | if (config->parity >= 0) { | |
1061 | switch (config->parity) { | |
1062 | /* Note: There's also SPACEPARITY, MARKPARITY (unneeded so far). */ | |
1063 | case SP_PARITY_NONE: | |
1064 | data->dcb.Parity = NOPARITY; | |
1065 | break; | |
1066 | case SP_PARITY_EVEN: | |
1067 | data->dcb.Parity = EVENPARITY; | |
1068 | break; | |
1069 | case SP_PARITY_ODD: | |
1070 | data->dcb.Parity = ODDPARITY; | |
1071 | break; | |
1072 | default: | |
c33efc48 | 1073 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa | 1074 | } |
18fc2dd1 ML |
1075 | } |
1076 | ||
e33ab9aa ML |
1077 | if (config->stopbits >= 0) { |
1078 | switch (config->stopbits) { | |
1079 | /* Note: There's also ONE5STOPBITS == 1.5 (unneeded so far). */ | |
1080 | case 1: | |
1081 | data->dcb.StopBits = ONESTOPBIT; | |
1082 | break; | |
1083 | case 2: | |
1084 | data->dcb.StopBits = TWOSTOPBITS; | |
1085 | break; | |
1086 | default: | |
c33efc48 | 1087 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bit setting"); |
e33ab9aa ML |
1088 | } |
1089 | } | |
1090 | ||
1091 | if (config->rts >= 0) { | |
1092 | switch (config->rts) { | |
1093 | case SP_RTS_OFF: | |
1094 | data->dcb.fRtsControl = RTS_CONTROL_DISABLE; | |
1095 | break; | |
1096 | case SP_RTS_ON: | |
1097 | data->dcb.fRtsControl = RTS_CONTROL_ENABLE; | |
1098 | break; | |
1099 | case SP_RTS_FLOW_CONTROL: | |
1100 | data->dcb.fRtsControl = RTS_CONTROL_HANDSHAKE; | |
1101 | break; | |
1102 | default: | |
c33efc48 | 1103 | RETURN_ERROR(SP_ERR_ARG, "Invalid RTS setting"); |
e33ab9aa ML |
1104 | } |
1105 | } | |
1106 | ||
1107 | if (config->cts >= 0) { | |
1108 | switch (config->cts) { | |
1109 | case SP_CTS_IGNORE: | |
1110 | data->dcb.fOutxCtsFlow = FALSE; | |
1111 | break; | |
1112 | case SP_CTS_FLOW_CONTROL: | |
1113 | data->dcb.fOutxCtsFlow = TRUE; | |
1114 | break; | |
1115 | default: | |
c33efc48 | 1116 | RETURN_ERROR(SP_ERR_ARG, "Invalid CTS setting"); |
e33ab9aa ML |
1117 | } |
1118 | } | |
1119 | ||
1120 | if (config->dtr >= 0) { | |
1121 | switch (config->dtr) { | |
1122 | case SP_DTR_OFF: | |
1123 | data->dcb.fDtrControl = DTR_CONTROL_DISABLE; | |
1124 | break; | |
1125 | case SP_DTR_ON: | |
1126 | data->dcb.fDtrControl = DTR_CONTROL_ENABLE; | |
1127 | break; | |
1128 | case SP_DTR_FLOW_CONTROL: | |
1129 | data->dcb.fDtrControl = DTR_CONTROL_HANDSHAKE; | |
1130 | break; | |
1131 | default: | |
c33efc48 | 1132 | RETURN_ERROR(SP_ERR_ARG, "Invalid DTR setting"); |
e33ab9aa ML |
1133 | } |
1134 | } | |
1135 | ||
1136 | if (config->dsr >= 0) { | |
1137 | switch (config->dsr) { | |
1138 | case SP_DSR_IGNORE: | |
1139 | data->dcb.fOutxDsrFlow = FALSE; | |
1140 | break; | |
1141 | case SP_DSR_FLOW_CONTROL: | |
1142 | data->dcb.fOutxDsrFlow = TRUE; | |
1143 | break; | |
1144 | default: | |
c33efc48 | 1145 | RETURN_ERROR(SP_ERR_ARG, "Invalid DSR setting"); |
e33ab9aa | 1146 | } |
18fc2dd1 ML |
1147 | } |
1148 | ||
e33ab9aa ML |
1149 | if (config->xon_xoff >= 0) { |
1150 | switch (config->xon_xoff) { | |
1151 | case SP_XONXOFF_DISABLED: | |
1152 | data->dcb.fInX = FALSE; | |
1153 | data->dcb.fOutX = FALSE; | |
1154 | break; | |
1155 | case SP_XONXOFF_IN: | |
1156 | data->dcb.fInX = TRUE; | |
1157 | data->dcb.fOutX = FALSE; | |
1158 | break; | |
1159 | case SP_XONXOFF_OUT: | |
1160 | data->dcb.fInX = FALSE; | |
1161 | data->dcb.fOutX = TRUE; | |
1162 | break; | |
1163 | case SP_XONXOFF_INOUT: | |
1164 | data->dcb.fInX = TRUE; | |
1165 | data->dcb.fOutX = TRUE; | |
1166 | break; | |
1167 | default: | |
c33efc48 | 1168 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1169 | } |
1170 | } | |
1171 | ||
1172 | if (!SetCommState(port->hdl, &data->dcb)) | |
c33efc48 | 1173 | RETURN_FAIL("SetCommState() failed"); |
e33ab9aa | 1174 | |
31b3a8f5 | 1175 | #else /* !_WIN32 */ |
e33ab9aa | 1176 | |
7a6d2196 ML |
1177 | int controlbits; |
1178 | ||
eac329d2 | 1179 | if (config->baudrate >= 0) { |
e33ab9aa ML |
1180 | for (i = 0; i < NUM_STD_BAUDRATES; i++) { |
1181 | if (config->baudrate == std_baudrates[i].value) { | |
1182 | if (cfsetospeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1183 | RETURN_FAIL("cfsetospeed() failed"); |
e33ab9aa ML |
1184 | |
1185 | if (cfsetispeed(&data->term, std_baudrates[i].index) < 0) | |
c33efc48 | 1186 | RETURN_FAIL("cfsetispeed() failed"); |
e33ab9aa ML |
1187 | break; |
1188 | } | |
1189 | } | |
1190 | ||
31b3a8f5 MH |
1191 | /* Non-standard baud rate */ |
1192 | if (i == NUM_STD_BAUDRATES) { | |
1193 | #ifdef __APPLE__ | |
24abdb68 | 1194 | /* Set "dummy" baud rate. */ |
31b3a8f5 | 1195 | if (cfsetspeed(&data->term, B9600) < 0) |
c33efc48 | 1196 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1197 | baud_nonstd = config->baudrate; |
7a6d2196 ML |
1198 | #elif defined(__linux__) |
1199 | baud_nonstd = 1; | |
31b3a8f5 | 1200 | #else |
c33efc48 | 1201 | RETURN_ERROR(SP_ERR_SUPP, "Non-standard baudrate not supported"); |
31b3a8f5 MH |
1202 | #endif |
1203 | } | |
e33ab9aa ML |
1204 | } |
1205 | ||
1206 | if (config->bits >= 0) { | |
1207 | data->term.c_cflag &= ~CSIZE; | |
1208 | switch (config->bits) { | |
1209 | case 8: | |
1210 | data->term.c_cflag |= CS8; | |
1211 | break; | |
1212 | case 7: | |
1213 | data->term.c_cflag |= CS7; | |
1214 | break; | |
1215 | case 6: | |
1216 | data->term.c_cflag |= CS6; | |
1217 | break; | |
23922313 UH |
1218 | case 5: |
1219 | data->term.c_cflag |= CS5; | |
1220 | break; | |
e33ab9aa | 1221 | default: |
c33efc48 | 1222 | RETURN_ERROR(SP_ERR_ARG, "Invalid data bits setting"); |
e33ab9aa ML |
1223 | } |
1224 | } | |
1225 | ||
1226 | if (config->parity >= 0) { | |
1227 | data->term.c_iflag &= ~IGNPAR; | |
1228 | data->term.c_cflag &= ~(PARENB | PARODD); | |
1229 | switch (config->parity) { | |
1230 | case SP_PARITY_NONE: | |
1231 | data->term.c_iflag |= IGNPAR; | |
1232 | break; | |
1233 | case SP_PARITY_EVEN: | |
1234 | data->term.c_cflag |= PARENB; | |
1235 | break; | |
1236 | case SP_PARITY_ODD: | |
1237 | data->term.c_cflag |= PARENB | PARODD; | |
1238 | break; | |
1239 | default: | |
c33efc48 | 1240 | RETURN_ERROR(SP_ERR_ARG, "Invalid parity setting"); |
e33ab9aa ML |
1241 | } |
1242 | } | |
1243 | ||
1244 | if (config->stopbits >= 0) { | |
1245 | data->term.c_cflag &= ~CSTOPB; | |
1246 | switch (config->stopbits) { | |
1247 | case 1: | |
1248 | data->term.c_cflag &= ~CSTOPB; | |
1249 | break; | |
1250 | case 2: | |
1251 | data->term.c_cflag |= CSTOPB; | |
1252 | break; | |
1253 | default: | |
c33efc48 | 1254 | RETURN_ERROR(SP_ERR_ARG, "Invalid stop bits setting"); |
e33ab9aa ML |
1255 | } |
1256 | } | |
1257 | ||
eac329d2 | 1258 | if (config->rts >= 0 || config->cts >= 0) { |
68ec29db ML |
1259 | if (data->termiox_supported) { |
1260 | data->flow &= ~(RTS_FLOW | CTS_FLOW); | |
1261 | switch (config->rts) { | |
1262 | case SP_RTS_OFF: | |
1263 | case SP_RTS_ON: | |
1264 | controlbits = TIOCM_RTS; | |
1265 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1266 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db ML |
1267 | break; |
1268 | case SP_RTS_FLOW_CONTROL: | |
1269 | data->flow |= RTS_FLOW; | |
1270 | break; | |
1271 | default: | |
1272 | break; | |
e33ab9aa | 1273 | } |
68ec29db ML |
1274 | if (config->cts == SP_CTS_FLOW_CONTROL) |
1275 | data->flow |= CTS_FLOW; | |
e33ab9aa | 1276 | |
68ec29db | 1277 | if (data->flow & (RTS_FLOW | CTS_FLOW)) |
e33ab9aa | 1278 | data->term.c_iflag |= CRTSCTS; |
68ec29db ML |
1279 | else |
1280 | data->term.c_iflag &= ~CRTSCTS; | |
1281 | } else { | |
1282 | /* Asymmetric use of RTS/CTS not supported. */ | |
1283 | if (data->term.c_iflag & CRTSCTS) { | |
1284 | /* Flow control can only be disabled for both RTS & CTS together. */ | |
1285 | if (config->rts >= 0 && config->rts != SP_RTS_FLOW_CONTROL) { | |
1286 | if (config->cts != SP_CTS_IGNORE) | |
c33efc48 | 1287 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db ML |
1288 | } |
1289 | if (config->cts >= 0 && config->cts != SP_CTS_FLOW_CONTROL) { | |
1290 | if (config->rts <= 0 || config->rts == SP_RTS_FLOW_CONTROL) | |
c33efc48 | 1291 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be disabled together"); |
68ec29db | 1292 | } |
e33ab9aa | 1293 | } else { |
68ec29db ML |
1294 | /* Flow control can only be enabled for both RTS & CTS together. */ |
1295 | if (((config->rts == SP_RTS_FLOW_CONTROL) && (config->cts != SP_CTS_FLOW_CONTROL)) || | |
1296 | ((config->cts == SP_CTS_FLOW_CONTROL) && (config->rts != SP_RTS_FLOW_CONTROL))) | |
c33efc48 | 1297 | RETURN_ERROR(SP_ERR_SUPP, "RTS & CTS flow control must be enabled together"); |
68ec29db ML |
1298 | } |
1299 | ||
1300 | if (config->rts >= 0) { | |
1301 | if (config->rts == SP_RTS_FLOW_CONTROL) { | |
1302 | data->term.c_iflag |= CRTSCTS; | |
1303 | } else { | |
1304 | controlbits = TIOCM_RTS; | |
1305 | if (ioctl(port->fd, config->rts == SP_RTS_ON ? TIOCMBIS : TIOCMBIC, | |
1306 | &controlbits) < 0) | |
c33efc48 | 1307 | RETURN_FAIL("Setting RTS signal level failed"); |
68ec29db | 1308 | } |
e33ab9aa ML |
1309 | } |
1310 | } | |
1311 | } | |
1312 | ||
eac329d2 | 1313 | if (config->dtr >= 0 || config->dsr >= 0) { |
68ec29db ML |
1314 | if (data->termiox_supported) { |
1315 | data->flow &= ~(DTR_FLOW | DSR_FLOW); | |
1316 | switch (config->dtr) { | |
1317 | case SP_DTR_OFF: | |
1318 | case SP_DTR_ON: | |
1319 | controlbits = TIOCM_DTR; | |
1320 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, &controlbits) < 0) | |
c33efc48 | 1321 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db ML |
1322 | break; |
1323 | case SP_DTR_FLOW_CONTROL: | |
1324 | data->flow |= DTR_FLOW; | |
1325 | break; | |
1326 | default: | |
1327 | break; | |
1328 | } | |
1329 | if (config->dsr == SP_DSR_FLOW_CONTROL) | |
1330 | data->flow |= DSR_FLOW; | |
1331 | } else { | |
1332 | /* DTR/DSR flow control not supported. */ | |
1333 | if (config->dtr == SP_DTR_FLOW_CONTROL || config->dsr == SP_DSR_FLOW_CONTROL) | |
c33efc48 | 1334 | RETURN_ERROR(SP_ERR_SUPP, "DTR/DSR flow control not supported"); |
e33ab9aa | 1335 | |
68ec29db ML |
1336 | if (config->dtr >= 0) { |
1337 | controlbits = TIOCM_DTR; | |
1338 | if (ioctl(port->fd, config->dtr == SP_DTR_ON ? TIOCMBIS : TIOCMBIC, | |
1339 | &controlbits) < 0) | |
c33efc48 | 1340 | RETURN_FAIL("Setting DTR signal level failed"); |
68ec29db | 1341 | } |
e33ab9aa ML |
1342 | } |
1343 | } | |
1344 | ||
1345 | if (config->xon_xoff >= 0) { | |
1346 | data->term.c_iflag &= ~(IXON | IXOFF | IXANY); | |
1347 | switch (config->xon_xoff) { | |
1348 | case SP_XONXOFF_DISABLED: | |
1349 | break; | |
1350 | case SP_XONXOFF_IN: | |
1351 | data->term.c_iflag |= IXOFF; | |
1352 | break; | |
1353 | case SP_XONXOFF_OUT: | |
1354 | data->term.c_iflag |= IXON | IXANY; | |
1355 | break; | |
1356 | case SP_XONXOFF_INOUT: | |
1357 | data->term.c_iflag |= IXON | IXOFF | IXANY; | |
1358 | break; | |
1359 | default: | |
c33efc48 | 1360 | RETURN_ERROR(SP_ERR_ARG, "Invalid XON/XOFF setting"); |
e33ab9aa ML |
1361 | } |
1362 | } | |
1363 | ||
1364 | if (tcsetattr(port->fd, TCSADRAIN, &data->term) < 0) | |
c33efc48 | 1365 | RETURN_FAIL("tcsetattr() failed"); |
31b3a8f5 MH |
1366 | |
1367 | #ifdef __APPLE__ | |
1368 | if (baud_nonstd != B0) { | |
1369 | if (ioctl(port->fd, IOSSIOSPEED, &baud_nonstd) == -1) | |
c33efc48 | 1370 | RETURN_FAIL("IOSSIOSPEED ioctl failed"); |
31b3a8f5 MH |
1371 | /* Set baud rates in data->term to correct, but incompatible |
1372 | * with tcsetattr() value, same as delivered by tcgetattr(). */ | |
1373 | if (cfsetspeed(&data->term, baud_nonstd) < 0) | |
c33efc48 | 1374 | RETURN_FAIL("cfsetspeed() failed"); |
31b3a8f5 | 1375 | } |
7a6d2196 ML |
1376 | #elif defined(__linux__) |
1377 | if (baud_nonstd) | |
1378 | TRY(set_baudrate(port->fd, config->baudrate)); | |
40978c2b | 1379 | #ifdef USE_TERMIOX |
68ec29db ML |
1380 | if (data->termiox_supported) |
1381 | TRY(set_flow(port->fd, data->flow)); | |
40978c2b | 1382 | #endif |
7a6d2196 | 1383 | #endif |
31b3a8f5 MH |
1384 | |
1385 | #endif /* !_WIN32 */ | |
e33ab9aa | 1386 | |
c33efc48 | 1387 | RETURN_OK(); |
e33ab9aa ML |
1388 | } |
1389 | ||
eb6ed20f | 1390 | enum sp_return sp_set_config(struct sp_port *port, const struct sp_port_config *config) |
e33ab9aa | 1391 | { |
8f189c4c | 1392 | struct port_data data; |
e33ab9aa ML |
1393 | struct sp_port_config prev_config; |
1394 | ||
c33efc48 ML |
1395 | TRACE("%p, %p", port, config); |
1396 | ||
823690ae ML |
1397 | CHECK_PORT(); |
1398 | ||
1399 | if (!config) | |
c33efc48 | 1400 | RETURN_ERROR(SP_ERR_ARG, "Null config"); |
823690ae | 1401 | |
e33ab9aa ML |
1402 | TRY(get_config(port, &data, &prev_config)); |
1403 | TRY(set_config(port, &data, config)); | |
74510d4b | 1404 | |
c33efc48 | 1405 | RETURN_OK(); |
74510d4b ML |
1406 | } |
1407 | ||
eb6ed20f | 1408 | #define CREATE_SETTER(x, type) int sp_set_##x(struct sp_port *port, type x) { \ |
8f189c4c | 1409 | struct port_data data; \ |
e33ab9aa | 1410 | struct sp_port_config config; \ |
c33efc48 | 1411 | TRACE("%p, %d", port, x); \ |
823690ae | 1412 | CHECK_PORT(); \ |
e33ab9aa ML |
1413 | TRY(get_config(port, &data, &config)); \ |
1414 | config.x = x; \ | |
1415 | TRY(set_config(port, &data, &config)); \ | |
c33efc48 | 1416 | RETURN_OK(); \ |
9069c2fb ML |
1417 | } |
1418 | ||
eb6ed20f ML |
1419 | CREATE_SETTER(baudrate, int) |
1420 | CREATE_SETTER(bits, int) | |
1421 | CREATE_SETTER(parity, enum sp_parity) | |
1422 | CREATE_SETTER(stopbits, int) | |
1423 | CREATE_SETTER(rts, enum sp_rts) | |
1424 | CREATE_SETTER(cts, enum sp_cts) | |
1425 | CREATE_SETTER(dtr, enum sp_dtr) | |
1426 | CREATE_SETTER(dsr, enum sp_dsr) | |
1427 | CREATE_SETTER(xon_xoff, enum sp_xonxoff) | |
1428 | ||
1429 | enum sp_return sp_set_flowcontrol(struct sp_port *port, enum sp_flowcontrol flowcontrol) | |
e33ab9aa | 1430 | { |
8f189c4c | 1431 | struct port_data data; |
e33ab9aa ML |
1432 | struct sp_port_config config; |
1433 | ||
c33efc48 ML |
1434 | TRACE("%p, %d", port, flowcontrol); |
1435 | ||
823690ae ML |
1436 | CHECK_PORT(); |
1437 | ||
e33ab9aa ML |
1438 | TRY(get_config(port, &data, &config)); |
1439 | ||
1440 | if (flowcontrol == SP_FLOWCONTROL_XONXOFF) | |
1441 | config.xon_xoff = SP_XONXOFF_INOUT; | |
1442 | else | |
1443 | config.xon_xoff = SP_XONXOFF_DISABLED; | |
1444 | ||
1445 | if (flowcontrol == SP_FLOWCONTROL_RTSCTS) { | |
1446 | config.rts = SP_RTS_FLOW_CONTROL; | |
1447 | config.cts = SP_CTS_FLOW_CONTROL; | |
1448 | } else { | |
1449 | if (config.rts == SP_RTS_FLOW_CONTROL) | |
1450 | config.rts = SP_RTS_ON; | |
1451 | config.cts = SP_CTS_IGNORE; | |
1452 | } | |
1453 | ||
1454 | if (flowcontrol == SP_FLOWCONTROL_DTRDSR) { | |
1455 | config.dtr = SP_DTR_FLOW_CONTROL; | |
1456 | config.dsr = SP_DSR_FLOW_CONTROL; | |
1457 | } else { | |
1458 | if (config.dtr == SP_DTR_FLOW_CONTROL) | |
1459 | config.dtr = SP_DTR_ON; | |
1460 | config.dsr = SP_DSR_IGNORE; | |
1461 | } | |
1462 | ||
1463 | TRY(set_config(port, &data, &config)); | |
1464 | ||
c33efc48 | 1465 | RETURN_OK(); |
e33ab9aa ML |
1466 | } |
1467 | ||
8cf7c697 ML |
1468 | enum sp_return sp_get_signals(struct sp_port *port, enum sp_signal *signals) |
1469 | { | |
c33efc48 ML |
1470 | TRACE("%p, %p", port, signals); |
1471 | ||
8cf7c697 ML |
1472 | CHECK_PORT(); |
1473 | ||
1474 | if (!signals) | |
c33efc48 | 1475 | RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); |
8cf7c697 | 1476 | |
ea667be7 ML |
1477 | DEBUG("Getting control signals for port %s", port->name); |
1478 | ||
8cf7c697 ML |
1479 | *signals = 0; |
1480 | #ifdef _WIN32 | |
1481 | DWORD bits; | |
1482 | if (GetCommModemStatus(port->hdl, &bits) == 0) | |
c33efc48 | 1483 | RETURN_FAIL("GetCommModemStatus() failed"); |
8cf7c697 ML |
1484 | if (bits & MS_CTS_ON) |
1485 | *signals |= SP_SIG_CTS; | |
1486 | if (bits & MS_DSR_ON) | |
1487 | *signals |= SP_SIG_DSR; | |
1488 | if (bits & MS_RING_ON) | |
1489 | *signals |= SP_SIG_DCD; | |
1490 | if (bits & MS_RLSD_ON) | |
1491 | *signals |= SP_SIG_RI; | |
1492 | #else | |
1493 | int bits; | |
1494 | if (ioctl(port->fd, TIOCMGET, &bits) < 0) | |
c33efc48 | 1495 | RETURN_FAIL("TIOCMGET ioctl failed"); |
8cf7c697 ML |
1496 | if (bits & TIOCM_CTS) |
1497 | *signals |= SP_SIG_CTS; | |
1498 | if (bits & TIOCM_DSR) | |
1499 | *signals |= SP_SIG_DSR; | |
1500 | if (bits & TIOCM_CAR) | |
1501 | *signals |= SP_SIG_DCD; | |
1502 | if (bits & TIOCM_RNG) | |
1503 | *signals |= SP_SIG_RI; | |
1504 | #endif | |
c33efc48 | 1505 | RETURN_OK(); |
8cf7c697 ML |
1506 | } |
1507 | ||
90cc3ee6 ML |
1508 | enum sp_return sp_start_break(struct sp_port *port) |
1509 | { | |
c33efc48 ML |
1510 | TRACE("%p", port); |
1511 | ||
90cc3ee6 ML |
1512 | CHECK_PORT(); |
1513 | #ifdef _WIN32 | |
1514 | if (SetCommBreak(port->hdl) == 0) | |
c33efc48 | 1515 | RETURN_FAIL("SetCommBreak() failed"); |
90cc3ee6 ML |
1516 | #else |
1517 | if (ioctl(port->fd, TIOCSBRK, 1) < 0) | |
c33efc48 | 1518 | RETURN_FAIL("TIOCSBRK ioctl failed"); |
90cc3ee6 ML |
1519 | #endif |
1520 | ||
c33efc48 | 1521 | RETURN_OK(); |
90cc3ee6 ML |
1522 | } |
1523 | ||
1524 | enum sp_return sp_end_break(struct sp_port *port) | |
1525 | { | |
c33efc48 ML |
1526 | TRACE("%p", port); |
1527 | ||
90cc3ee6 ML |
1528 | CHECK_PORT(); |
1529 | #ifdef _WIN32 | |
1530 | if (ClearCommBreak(port->hdl) == 0) | |
c33efc48 | 1531 | RETURN_FAIL("ClearCommBreak() failed"); |
90cc3ee6 ML |
1532 | #else |
1533 | if (ioctl(port->fd, TIOCCBRK, 1) < 0) | |
c33efc48 | 1534 | RETURN_FAIL("TIOCCBRK ioctl failed"); |
90cc3ee6 ML |
1535 | #endif |
1536 | ||
c33efc48 | 1537 | RETURN_OK(); |
90cc3ee6 ML |
1538 | } |
1539 | ||
74510d4b ML |
1540 | int sp_last_error_code(void) |
1541 | { | |
c33efc48 | 1542 | TRACE(""); |
74510d4b | 1543 | #ifdef _WIN32 |
c33efc48 | 1544 | RETURN_VALUE("%d", GetLastError()); |
74510d4b | 1545 | #else |
c33efc48 | 1546 | RETURN_VALUE("%d", errno); |
74510d4b ML |
1547 | #endif |
1548 | } | |
1549 | ||
74510d4b ML |
1550 | char *sp_last_error_message(void) |
1551 | { | |
c33efc48 ML |
1552 | TRACE(""); |
1553 | ||
74510d4b ML |
1554 | #ifdef _WIN32 |
1555 | LPVOID message; | |
1556 | DWORD error = GetLastError(); | |
1557 | ||
1558 | FormatMessage( | |
1559 | FORMAT_MESSAGE_ALLOCATE_BUFFER | | |
1560 | FORMAT_MESSAGE_FROM_SYSTEM | | |
1561 | FORMAT_MESSAGE_IGNORE_INSERTS, | |
1562 | NULL, | |
1563 | error, | |
1564 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
1565 | (LPTSTR) &message, | |
1566 | 0, NULL ); | |
1567 | ||
c33efc48 | 1568 | RETURN_VALUE("%s", message); |
74510d4b | 1569 | #else |
c33efc48 | 1570 | RETURN_VALUE("%s", strerror(errno)); |
74510d4b ML |
1571 | #endif |
1572 | } | |
1573 | ||
74510d4b ML |
1574 | void sp_free_error_message(char *message) |
1575 | { | |
c33efc48 ML |
1576 | TRACE("%s", message); |
1577 | ||
74510d4b ML |
1578 | #ifdef _WIN32 |
1579 | LocalFree(message); | |
64eec30d ML |
1580 | #else |
1581 | (void)message; | |
74510d4b | 1582 | #endif |
c33efc48 ML |
1583 | |
1584 | RETURN(); | |
74510d4b | 1585 | } |
863b35e6 ML |
1586 | |
1587 | void sp_set_debug_handler(void (*handler)(const char *format, ...)) | |
1588 | { | |
c33efc48 ML |
1589 | TRACE("%p", handler); |
1590 | ||
863b35e6 | 1591 | sp_debug_handler = handler; |
c33efc48 ML |
1592 | |
1593 | RETURN(); | |
863b35e6 ML |
1594 | } |
1595 | ||
1596 | void sp_default_debug_handler(const char *format, ...) | |
1597 | { | |
1598 | va_list args; | |
1599 | va_start(args, format); | |
1600 | if (getenv("LIBSERIALPORT_DEBUG")) { | |
1601 | fputs("libserialport: ", stderr); | |
1602 | vfprintf(stderr, format, args); | |
1603 | } | |
1604 | va_end(args); | |
1605 | } |