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063e7aef | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
063e7aef UH |
3 | * |
4 | * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
2ea1fdf1 | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
063e7aef UH |
18 | */ |
19 | ||
d9251a2c UH |
20 | /** |
21 | * @file | |
22 | * | |
23 | * Standard API helper functions. | |
d9251a2c | 24 | */ |
04cb9157 | 25 | |
d18bf7bd UH |
26 | /* Needed for gettimeofday(), at least on FreeBSD. */ |
27 | #define _XOPEN_SOURCE 700 | |
28 | ||
6ec6c43b | 29 | #include <config.h> |
697fb6dd UH |
30 | #include <string.h> |
31 | #include <math.h> | |
d18bf7bd | 32 | #include <sys/time.h> |
063e7aef | 33 | #include <glib.h> |
c1aae900 | 34 | #include <libsigrok/libsigrok.h> |
063e7aef | 35 | #include "libsigrok-internal.h" |
5a1afc09 | 36 | #include "scpi.h" |
063e7aef | 37 | |
3544f848 ML |
38 | #define LOG_PREFIX "std" |
39 | ||
23772462 UH |
40 | SR_PRIV const uint32_t NO_OPTS[1] = {}; |
41 | ||
063e7aef | 42 | /** |
12852b03 | 43 | * Standard driver init() callback API helper. |
063e7aef | 44 | * |
6078d2c9 | 45 | * This function can be used to simplify most driver's init() API callback. |
063e7aef | 46 | * |
12852b03 UH |
47 | * Create a new 'struct drv_context' (drvc), assign sr_ctx to it, and |
48 | * then assign 'drvc' to the 'struct sr_dev_driver' (di) that is passed. | |
063e7aef | 49 | * |
12852b03 UH |
50 | * @param[in] di The driver instance to use. Must not be NULL. |
51 | * @param[in] sr_ctx The libsigrok context to assign. May be NULL. | |
063e7aef | 52 | * |
12852b03 UH |
53 | * @retval SR_OK Success. |
54 | * @retval SR_ERR_ARG Invalid argument. | |
063e7aef | 55 | */ |
c45c32ce | 56 | SR_PRIV int std_init(struct sr_dev_driver *di, struct sr_context *sr_ctx) |
063e7aef UH |
57 | { |
58 | struct drv_context *drvc; | |
59 | ||
12852b03 UH |
60 | if (!di) { |
61 | sr_err("%s: Invalid argument.", __func__); | |
62 | return SR_ERR_ARG; | |
63 | } | |
64 | ||
91219afc | 65 | drvc = g_malloc0(sizeof(struct drv_context)); |
063e7aef | 66 | drvc->sr_ctx = sr_ctx; |
c2523f22 | 67 | drvc->instances = NULL; |
41812aca | 68 | di->context = drvc; |
063e7aef UH |
69 | |
70 | return SR_OK; | |
71 | } | |
4afdfd46 | 72 | |
700d6b64 | 73 | /** |
12852b03 | 74 | * Standard driver cleanup() callback API helper. |
700d6b64 | 75 | * |
12852b03 | 76 | * This function can be used to simplify most driver's cleanup() API callback. |
700d6b64 | 77 | * |
12852b03 | 78 | * Free all device instances by calling sr_dev_clear() and then release any |
700d6b64 LPC |
79 | * resources allocated by std_init(). |
80 | * | |
12852b03 | 81 | * @param[in] di The driver instance to use. Must not be NULL. |
700d6b64 | 82 | * |
12852b03 UH |
83 | * @retval SR_OK Success. |
84 | * @retval SR_ERR_ARG Invalid argument. | |
85 | * @retval other Other error. | |
86 | */ | |
700d6b64 LPC |
87 | SR_PRIV int std_cleanup(const struct sr_dev_driver *di) |
88 | { | |
89 | int ret; | |
90 | ||
12852b03 UH |
91 | if (!di) { |
92 | sr_err("%s: Invalid argument.", __func__); | |
93 | return SR_ERR_ARG; | |
94 | } | |
95 | ||
700d6b64 LPC |
96 | ret = sr_dev_clear(di); |
97 | g_free(di->context); | |
98 | ||
99 | return ret; | |
100 | } | |
101 | ||
4d67b9d9 UH |
102 | /** |
103 | * Dummmy driver dev_open() callback API helper. | |
104 | * | |
105 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
106 | * | |
107 | * @retval SR_OK Success. | |
108 | */ | |
109 | SR_PRIV int std_dummy_dev_open(struct sr_dev_inst *sdi) | |
110 | { | |
111 | (void)sdi; | |
112 | ||
113 | return SR_OK; | |
114 | } | |
115 | ||
116 | /** | |
117 | * Dummmy driver dev_close() callback API helper. | |
118 | * | |
119 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
120 | * | |
121 | * @retval SR_OK Success. | |
122 | */ | |
123 | SR_PRIV int std_dummy_dev_close(struct sr_dev_inst *sdi) | |
124 | { | |
125 | (void)sdi; | |
126 | ||
127 | return SR_OK; | |
128 | } | |
129 | ||
130 | /** | |
131 | * Dummmy driver dev_acquisition_start() callback API helper. | |
132 | * | |
133 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
134 | * | |
135 | * @retval SR_OK Success. | |
136 | */ | |
137 | SR_PRIV int std_dummy_dev_acquisition_start(const struct sr_dev_inst *sdi) | |
138 | { | |
139 | (void)sdi; | |
140 | ||
141 | return SR_OK; | |
142 | } | |
143 | ||
144 | /** | |
145 | * Dummmy driver dev_acquisition_stop() callback API helper. | |
146 | * | |
147 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
148 | * | |
149 | * @retval SR_OK Success. | |
150 | */ | |
151 | SR_PRIV int std_dummy_dev_acquisition_stop(struct sr_dev_inst *sdi) | |
152 | { | |
153 | (void)sdi; | |
154 | ||
155 | return SR_OK; | |
156 | } | |
157 | ||
4afdfd46 UH |
158 | /** |
159 | * Standard API helper for sending an SR_DF_HEADER packet. | |
160 | * | |
12852b03 | 161 | * This function can be used to simplify most drivers' |
6078d2c9 | 162 | * dev_acquisition_start() API callback. |
4afdfd46 | 163 | * |
12852b03 | 164 | * @param[in] sdi The device instance to use. Must not be NULL. |
4afdfd46 | 165 | * |
12852b03 UH |
166 | * @retval SR_OK Success. |
167 | * @retval SR_ERR_ARG Invalid argument. | |
168 | * @retval other Other error. | |
4afdfd46 | 169 | */ |
bee2b016 | 170 | SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi) |
4afdfd46 | 171 | { |
12852b03 | 172 | const char *prefix; |
4afdfd46 UH |
173 | int ret; |
174 | struct sr_datafeed_packet packet; | |
175 | struct sr_datafeed_header header; | |
176 | ||
12852b03 UH |
177 | if (!sdi) { |
178 | sr_err("%s: Invalid argument.", __func__); | |
179 | return SR_ERR_ARG; | |
180 | } | |
181 | ||
182 | prefix = (sdi->driver) ? sdi->driver->name : "unknown"; | |
183 | ||
4afdfd46 | 184 | /* Send header packet to the session bus. */ |
4afdfd46 UH |
185 | packet.type = SR_DF_HEADER; |
186 | packet.payload = (uint8_t *)&header; | |
187 | header.feed_version = 1; | |
188 | gettimeofday(&header.starttime, NULL); | |
189 | ||
190 | if ((ret = sr_session_send(sdi, &packet)) < 0) { | |
12852b03 | 191 | sr_err("%s: Failed to send SR_DF_HEADER packet: %d.", prefix, ret); |
4afdfd46 UH |
192 | return ret; |
193 | } | |
194 | ||
195 | return SR_OK; | |
196 | } | |
cd2f0fe2 | 197 | |
447c4216 | 198 | static int send_df_without_payload(const struct sr_dev_inst *sdi, uint16_t packet_type) |
3be42bc2 | 199 | { |
12852b03 | 200 | const char *prefix; |
3be42bc2 UH |
201 | int ret; |
202 | struct sr_datafeed_packet packet; | |
203 | ||
12852b03 UH |
204 | if (!sdi) { |
205 | sr_err("%s: Invalid argument.", __func__); | |
3be42bc2 | 206 | return SR_ERR_ARG; |
12852b03 UH |
207 | } |
208 | ||
209 | prefix = (sdi->driver) ? sdi->driver->name : "unknown"; | |
3be42bc2 | 210 | |
447c4216 | 211 | packet.type = packet_type; |
3be42bc2 UH |
212 | packet.payload = NULL; |
213 | ||
214 | if ((ret = sr_session_send(sdi, &packet)) < 0) { | |
447c4216 | 215 | sr_err("%s: Failed to send packet of type %d: %d.", prefix, packet_type, ret); |
3be42bc2 UH |
216 | return ret; |
217 | } | |
218 | ||
219 | return SR_OK; | |
220 | } | |
221 | ||
447c4216 UH |
222 | /** |
223 | * Standard API helper for sending an SR_DF_END packet. | |
224 | * | |
225 | * This function can be used to simplify most drivers' | |
226 | * dev_acquisition_stop() API callback. | |
227 | * | |
228 | * @param[in] sdi The device instance to use. Must not be NULL. | |
229 | * | |
230 | * @retval SR_OK Success. | |
231 | * @retval SR_ERR_ARG Invalid argument. | |
232 | * @retval other Other error. | |
233 | */ | |
234 | SR_PRIV int std_session_send_df_end(const struct sr_dev_inst *sdi) | |
235 | { | |
236 | return send_df_without_payload(sdi, SR_DF_END); | |
237 | } | |
238 | ||
10cf8113 UH |
239 | /** |
240 | * Standard API helper for sending an SR_DF_TRIGGER packet. | |
241 | * | |
242 | * This function can be used to simplify most drivers' trigger handling. | |
243 | * | |
244 | * @param[in] sdi The device instance to use. Must not be NULL. | |
245 | * | |
246 | * @retval SR_OK Success. | |
247 | * @retval SR_ERR_ARG Invalid argument. | |
248 | * @retval other Other error. | |
249 | */ | |
250 | SR_PRIV int std_session_send_df_trigger(const struct sr_dev_inst *sdi) | |
251 | { | |
447c4216 | 252 | return send_df_without_payload(sdi, SR_DF_TRIGGER); |
10cf8113 UH |
253 | } |
254 | ||
b7602846 SA |
255 | /** |
256 | * Standard API helper for sending an SR_DF_FRAME_BEGIN packet. | |
257 | * | |
447c4216 | 258 | * This function can be used to simplify most drivers' frame handling. |
b7602846 SA |
259 | * |
260 | * @param[in] sdi The device instance to use. Must not be NULL. | |
261 | * | |
262 | * @retval SR_OK Success. | |
263 | * @retval SR_ERR_ARG Invalid argument. | |
264 | * @retval other Other error. | |
265 | */ | |
7f7702b8 | 266 | SR_PRIV int std_session_send_df_frame_begin(const struct sr_dev_inst *sdi) |
b7602846 | 267 | { |
447c4216 | 268 | return send_df_without_payload(sdi, SR_DF_FRAME_BEGIN); |
b7602846 SA |
269 | } |
270 | ||
271 | /** | |
272 | * Standard API helper for sending an SR_DF_FRAME_END packet. | |
273 | * | |
447c4216 | 274 | * This function can be used to simplify most drivers' frame handling. |
b7602846 SA |
275 | * |
276 | * @param[in] sdi The device instance to use. Must not be NULL. | |
277 | * | |
278 | * @retval SR_OK Success. | |
279 | * @retval SR_ERR_ARG Invalid argument. | |
280 | * @retval other Other error. | |
281 | */ | |
7f7702b8 | 282 | SR_PRIV int std_session_send_df_frame_end(const struct sr_dev_inst *sdi) |
b7602846 | 283 | { |
447c4216 | 284 | return send_df_without_payload(sdi, SR_DF_FRAME_END); |
b7602846 SA |
285 | } |
286 | ||
1df81f4b | 287 | #ifdef HAVE_SERIAL_COMM |
c4f2dfd0 | 288 | |
813aab69 | 289 | /** |
12852b03 | 290 | * Standard serial driver dev_open() callback API helper. |
23dc6661 BV |
291 | * |
292 | * This function can be used to implement the dev_open() driver API | |
293 | * callback in drivers that use a serial port. The port is opened | |
6c592ece | 294 | * with the SERIAL_RDWR flag. |
23dc6661 | 295 | * |
12852b03 UH |
296 | * @param[in] sdi The device instance to use. Must not be NULL. |
297 | * | |
23dc6661 | 298 | * @retval SR_OK Success. |
12852b03 UH |
299 | * @retval SR_ERR_ARG Invalid argument. |
300 | * @retval other Serial port open failed. | |
23dc6661 BV |
301 | */ |
302 | SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi) | |
303 | { | |
304 | struct sr_serial_dev_inst *serial; | |
305 | ||
12852b03 UH |
306 | if (!sdi) { |
307 | sr_err("%s: Invalid argument.", __func__); | |
7e463623 | 308 | return SR_ERR_ARG; |
12852b03 | 309 | } |
23dc6661 | 310 | |
7e463623 | 311 | serial = sdi->conn; |
23dc6661 | 312 | |
7e463623 | 313 | return serial_open(serial, SERIAL_RDWR); |
23dc6661 BV |
314 | } |
315 | ||
813aab69 | 316 | /** |
12852b03 | 317 | * Standard serial driver dev_close() callback API helper. |
1e7134dc BV |
318 | * |
319 | * This function can be used to implement the dev_close() driver API | |
320 | * callback in drivers that use a serial port. | |
321 | * | |
12852b03 UH |
322 | * @param[in] sdi The device instance to use. Must not be NULL. |
323 | * | |
1e7134dc | 324 | * @retval SR_OK Success. |
12852b03 UH |
325 | * @retval SR_ERR_ARG Invalid argument. |
326 | * @retval other Serial port close failed. | |
1e7134dc BV |
327 | */ |
328 | SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi) | |
329 | { | |
330 | struct sr_serial_dev_inst *serial; | |
331 | ||
12852b03 UH |
332 | if (!sdi) { |
333 | sr_err("%s: Invalid argument.", __func__); | |
093e1cba | 334 | return SR_ERR_ARG; |
12852b03 | 335 | } |
1e7134dc | 336 | |
f1ba6b4b | 337 | serial = sdi->conn; |
093e1cba | 338 | |
f1ba6b4b | 339 | return serial_close(serial); |
1e7134dc BV |
340 | } |
341 | ||
813aab69 | 342 | /** |
12852b03 | 343 | * Standard serial driver dev_acquisition_stop() callback API helper. |
cd2f0fe2 | 344 | * |
12852b03 | 345 | * This function can be used to simplify most (serial port based) drivers' |
6078d2c9 | 346 | * dev_acquisition_stop() API callback. |
cd2f0fe2 | 347 | * |
12852b03 UH |
348 | * @param[in] sdi The device instance for which acquisition should stop. |
349 | * Must not be NULL. | |
cd2f0fe2 | 350 | * |
1477a9a6 | 351 | * @retval SR_OK Success. |
12852b03 UH |
352 | * @retval SR_ERR_ARG Invalid argument. |
353 | * @retval other Other error. | |
cd2f0fe2 | 354 | */ |
1b38775b | 355 | SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi) |
cd2f0fe2 | 356 | { |
12852b03 UH |
357 | struct sr_serial_dev_inst *serial; |
358 | const char *prefix; | |
cd2f0fe2 | 359 | int ret; |
cd2f0fe2 | 360 | |
12852b03 UH |
361 | if (!sdi) { |
362 | sr_err("%s: Invalid argument.", __func__); | |
363 | return SR_ERR_ARG; | |
364 | } | |
365 | ||
366 | serial = sdi->conn; | |
367 | prefix = sdi->driver->name; | |
368 | ||
102f1239 | 369 | if ((ret = serial_source_remove(sdi->session, serial)) < 0) { |
ac2926b3 | 370 | sr_err("%s: Failed to remove source: %d.", prefix, ret); |
cd2f0fe2 UH |
371 | return ret; |
372 | } | |
373 | ||
12852b03 | 374 | return std_session_send_df_end(sdi); |
cd2f0fe2 | 375 | } |
49f00e13 | 376 | |
c4f2dfd0 UH |
377 | #endif |
378 | ||
813aab69 | 379 | /** |
12852b03 | 380 | * Standard driver dev_clear() callback API helper. |
49f00e13 | 381 | * |
813aab69 MH |
382 | * Clear driver, this means, close all instances. |
383 | * | |
49f00e13 BV |
384 | * This function can be used to implement the dev_clear() driver API |
385 | * callback. dev_close() is called before every sr_dev_inst is cleared. | |
386 | * | |
8bf18daa | 387 | * The only limitation is driver-specific device contexts (sdi->priv / devc). |
49f00e13 BV |
388 | * These are freed, but any dynamic allocation within structs stored |
389 | * there cannot be freed. | |
390 | * | |
12852b03 UH |
391 | * @param[in] driver The driver which will have its instances released. |
392 | * Must not be NULL. | |
393 | * @param[in] clear_private If not NULL, this points to a function called | |
8bf18daa | 394 | * with sdi->priv (devc) as argument. The function can then clear |
12852b03 | 395 | * any device instance-specific resources kept there. |
8bf18daa UH |
396 | * It must NOT clear the struct pointed to by sdi->priv (devc), |
397 | * since this function will always free it after clear_private() | |
398 | * has run. | |
49f00e13 | 399 | * |
12852b03 UH |
400 | * @retval SR_OK Success. |
401 | * @retval SR_ERR_ARG Invalid argument. | |
402 | * @retval SR_ERR_BUG Implementation bug. | |
403 | * @retval other Other error. | |
49f00e13 | 404 | */ |
6e43c3d5 | 405 | SR_PRIV int std_dev_clear_with_callback(const struct sr_dev_driver *driver, |
144f6660 | 406 | std_dev_clear_callback clear_private) |
49f00e13 | 407 | { |
49f00e13 | 408 | struct drv_context *drvc; |
12a33563 | 409 | struct sr_dev_inst *sdi; |
7aebe22d | 410 | GSList *l; |
49f00e13 BV |
411 | int ret; |
412 | ||
12852b03 UH |
413 | if (!driver) { |
414 | sr_err("%s: Invalid argument.", __func__); | |
415 | return SR_ERR_ARG; | |
416 | } | |
417 | ||
418 | drvc = driver->context; /* Caller checked for context != NULL. */ | |
3a277f3b | 419 | |
49f00e13 BV |
420 | ret = SR_OK; |
421 | for (l = drvc->instances; l; l = l->next) { | |
49f00e13 | 422 | if (!(sdi = l->data)) { |
12852b03 | 423 | sr_err("%s: Invalid device instance.", __func__); |
49f00e13 BV |
424 | ret = SR_ERR_BUG; |
425 | continue; | |
426 | } | |
9b093606 | 427 | if (driver->dev_close && sdi->status == SR_ST_ACTIVE) |
49f00e13 BV |
428 | driver->dev_close(sdi); |
429 | ||
430 | if (sdi->conn) { | |
1df81f4b | 431 | #ifdef HAVE_SERIAL_COMM |
c4f2dfd0 | 432 | if (sdi->inst_type == SR_INST_SERIAL) |
12a33563 | 433 | sr_serial_dev_inst_free(sdi->conn); |
c4f2dfd0 | 434 | #endif |
45357ce6 | 435 | #ifdef HAVE_LIBUSB_1_0 |
c4f2dfd0 | 436 | if (sdi->inst_type == SR_INST_USB) |
49f00e13 | 437 | sr_usb_dev_inst_free(sdi->conn); |
a0c7e23a | 438 | #endif |
23f43dff ML |
439 | if (sdi->inst_type == SR_INST_SCPI) |
440 | sr_scpi_free(sdi->conn); | |
daa39012 AJ |
441 | if (sdi->inst_type == SR_INST_MODBUS) |
442 | sr_modbus_free(sdi->conn); | |
49f00e13 | 443 | } |
8bf18daa UH |
444 | |
445 | /* Clear driver-specific stuff, if any. */ | |
ae5859ff BV |
446 | if (clear_private) |
447 | clear_private(sdi->priv); | |
8bf18daa UH |
448 | |
449 | /* Clear sdi->priv (devc). */ | |
450 | g_free(sdi->priv); | |
886413b6 | 451 | |
49f00e13 BV |
452 | sr_dev_inst_free(sdi); |
453 | } | |
454 | ||
455 | g_slist_free(drvc->instances); | |
456 | drvc->instances = NULL; | |
457 | ||
458 | return ret; | |
459 | } | |
c01bf34c | 460 | |
f778bf02 UH |
461 | SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver) |
462 | { | |
463 | return std_dev_clear_with_callback(driver, NULL); | |
464 | } | |
465 | ||
c01bf34c | 466 | /** |
12852b03 | 467 | * Standard driver dev_list() callback API helper. |
c01bf34c | 468 | * |
12852b03 | 469 | * This function can be used as the dev_list() callback by most drivers. |
c01bf34c | 470 | * |
12852b03 | 471 | * Return the devices contained in the driver context instances list. |
c01bf34c | 472 | * |
12852b03 UH |
473 | * @param[in] di The driver instance to use. Must not be NULL. |
474 | * | |
475 | * @retval NULL Error, or the list is empty. | |
476 | * @retval other The list of device instances of this driver. | |
c01bf34c LPC |
477 | */ |
478 | SR_PRIV GSList *std_dev_list(const struct sr_dev_driver *di) | |
479 | { | |
12852b03 UH |
480 | struct drv_context *drvc; |
481 | ||
482 | if (!di) { | |
483 | sr_err("%s: Invalid argument.", __func__); | |
484 | return NULL; | |
485 | } | |
486 | ||
487 | drvc = di->context; | |
c01bf34c LPC |
488 | |
489 | return drvc->instances; | |
490 | } | |
15a5bfe4 LPC |
491 | |
492 | /** | |
12852b03 | 493 | * Standard driver scan() callback API helper. |
15a5bfe4 LPC |
494 | * |
495 | * This function can be used to perform common tasks required by a driver's | |
496 | * scan() callback. It will initialize the driver for each device on the list | |
497 | * and add the devices on the list to the driver's device instance list. | |
498 | * Usually it should be used as the last step in the scan() callback, right | |
499 | * before returning. | |
500 | * | |
501 | * Note: This function can only be used if std_init() has been called | |
502 | * previously by the driver. | |
503 | * | |
504 | * Example: | |
505 | * @code{c} | |
506 | * static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
507 | * { | |
508 | * struct GSList *device; | |
509 | * struct sr_dev_inst *sdi; | |
510 | * | |
511 | * sdi = g_new0(sr_dev_inst, 1); | |
512 | * sdi->vendor = ...; | |
513 | * ... | |
514 | * devices = g_slist_append(devices, sdi); | |
515 | * ... | |
516 | * return std_scan_complete(di, devices); | |
517 | * } | |
518 | * @endcode | |
519 | * | |
12852b03 UH |
520 | * @param[in] di The driver instance to use. Must not be NULL. |
521 | * @param[in] devices List of newly discovered devices (struct sr_dev_inst). | |
522 | * May be NULL. | |
15a5bfe4 LPC |
523 | * |
524 | * @return The @p devices list. | |
525 | */ | |
526 | SR_PRIV GSList *std_scan_complete(struct sr_dev_driver *di, GSList *devices) | |
527 | { | |
39fcfdc9 | 528 | struct drv_context *drvc; |
15a5bfe4 LPC |
529 | GSList *l; |
530 | ||
39fcfdc9 UH |
531 | if (!di) { |
532 | sr_err("Invalid driver instance (di), cannot complete scan."); | |
533 | return NULL; | |
534 | } | |
535 | ||
536 | drvc = di->context; | |
537 | ||
15a5bfe4 LPC |
538 | for (l = devices; l; l = l->next) { |
539 | struct sr_dev_inst *sdi = l->data; | |
39fcfdc9 | 540 | if (!sdi) { |
12852b03 | 541 | sr_err("Invalid device instance, cannot complete scan."); |
39fcfdc9 UH |
542 | return NULL; |
543 | } | |
15a5bfe4 LPC |
544 | sdi->driver = di; |
545 | } | |
546 | ||
547 | drvc->instances = g_slist_concat(drvc->instances, g_slist_copy(devices)); | |
548 | ||
549 | return devices; | |
550 | } | |
e66d1892 UH |
551 | |
552 | SR_PRIV int std_opts_config_list(uint32_t key, GVariant **data, | |
553 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, | |
554 | const uint32_t scanopts[], size_t scansize, const uint32_t drvopts[], | |
555 | size_t drvsize, const uint32_t devopts[], size_t devsize) | |
556 | { | |
557 | switch (key) { | |
558 | case SR_CONF_SCAN_OPTIONS: | |
559 | /* Always return scanopts, regardless of sdi or cg. */ | |
23772462 | 560 | if (!scanopts || scanopts == NO_OPTS) |
e66d1892 UH |
561 | return SR_ERR_ARG; |
562 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
563 | scanopts, scansize, sizeof(uint32_t)); | |
564 | break; | |
565 | case SR_CONF_DEVICE_OPTIONS: | |
566 | if (!sdi) { | |
567 | /* sdi == NULL: return drvopts. */ | |
23772462 | 568 | if (!drvopts || drvopts == NO_OPTS) |
e66d1892 UH |
569 | return SR_ERR_ARG; |
570 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
571 | drvopts, drvsize, sizeof(uint32_t)); | |
572 | } else if (sdi && !cg) { | |
573 | /* sdi != NULL, cg == NULL: return devopts. */ | |
23772462 | 574 | if (!devopts || devopts == NO_OPTS) |
e66d1892 UH |
575 | return SR_ERR_ARG; |
576 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
577 | devopts, devsize, sizeof(uint32_t)); | |
578 | } else { | |
579 | /* | |
580 | * Note: sdi != NULL, cg != NULL is not handled by | |
581 | * this function since it's very driver-specific. | |
582 | */ | |
583 | sr_err("%s: %s: sdi/cg != NULL: not handling.", | |
584 | sdi->driver->name, __func__); | |
585 | return SR_ERR_ARG; | |
586 | } | |
587 | break; | |
588 | default: | |
589 | return SR_ERR_NA; | |
590 | } | |
591 | ||
592 | return SR_OK; | |
593 | } | |
db944f16 | 594 | |
58ffcf97 | 595 | SR_PRIV GVariant *std_gvar_tuple_array(const uint64_t a[][2], unsigned int n) |
db944f16 UH |
596 | { |
597 | unsigned int i; | |
598 | GVariant *rational[2]; | |
599 | GVariantBuilder gvb; | |
600 | ||
1bb348cd | 601 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_TUPLE); |
db944f16 UH |
602 | |
603 | for (i = 0; i < n; i++) { | |
58ffcf97 UH |
604 | rational[0] = g_variant_new_uint64(a[i][0]); |
605 | rational[1] = g_variant_new_uint64(a[i][1]); | |
db944f16 UH |
606 | |
607 | /* FIXME: Valgrind reports a memory leak here. */ | |
695aeaf7 GS |
608 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, |
609 | ARRAY_SIZE(rational))); | |
db944f16 UH |
610 | } |
611 | ||
612 | return g_variant_builder_end(&gvb); | |
613 | } | |
614 | ||
615 | SR_PRIV GVariant *std_gvar_tuple_rational(const struct sr_rational *r, unsigned int n) | |
616 | { | |
617 | unsigned int i; | |
618 | GVariant *rational[2]; | |
619 | GVariantBuilder gvb; | |
620 | ||
1bb348cd | 621 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_TUPLE); |
db944f16 UH |
622 | |
623 | for (i = 0; i < n; i++) { | |
624 | rational[0] = g_variant_new_uint64(r[i].p); | |
625 | rational[1] = g_variant_new_uint64(r[i].q); | |
626 | ||
627 | /* FIXME: Valgrind reports a memory leak here. */ | |
695aeaf7 GS |
628 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, |
629 | ARRAY_SIZE(rational))); | |
db944f16 UH |
630 | } |
631 | ||
632 | return g_variant_builder_end(&gvb); | |
633 | } | |
463160cb UH |
634 | |
635 | static GVariant *samplerate_helper(const uint64_t samplerates[], unsigned int n, const char *str) | |
636 | { | |
637 | GVariant *gvar; | |
638 | GVariantBuilder gvb; | |
639 | ||
640 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
641 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
642 | n, sizeof(uint64_t)); | |
643 | g_variant_builder_add(&gvb, "{sv}", str, gvar); | |
644 | ||
645 | return g_variant_builder_end(&gvb); | |
646 | } | |
647 | ||
648 | SR_PRIV GVariant *std_gvar_samplerates(const uint64_t samplerates[], unsigned int n) | |
649 | { | |
650 | return samplerate_helper(samplerates, n, "samplerates"); | |
651 | } | |
652 | ||
653 | SR_PRIV GVariant *std_gvar_samplerates_steps(const uint64_t samplerates[], unsigned int n) | |
654 | { | |
655 | return samplerate_helper(samplerates, n, "samplerate-steps"); | |
656 | } | |
54d471f4 UH |
657 | |
658 | SR_PRIV GVariant *std_gvar_min_max_step(double min, double max, double step) | |
659 | { | |
660 | GVariantBuilder gvb; | |
661 | ||
662 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
663 | ||
664 | g_variant_builder_add_value(&gvb, g_variant_new_double(min)); | |
665 | g_variant_builder_add_value(&gvb, g_variant_new_double(max)); | |
666 | g_variant_builder_add_value(&gvb, g_variant_new_double(step)); | |
667 | ||
668 | return g_variant_builder_end(&gvb); | |
669 | } | |
670 | ||
671 | SR_PRIV GVariant *std_gvar_min_max_step_array(const double a[3]) | |
672 | { | |
673 | unsigned int i; | |
674 | GVariantBuilder gvb; | |
675 | ||
676 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
677 | ||
678 | for (i = 0; i < 3; i++) | |
679 | g_variant_builder_add_value(&gvb, g_variant_new_double(a[i])); | |
680 | ||
681 | return g_variant_builder_end(&gvb); | |
682 | } | |
7bc3cfe6 UH |
683 | |
684 | SR_PRIV GVariant *std_gvar_min_max_step_thresholds(const double min, const double max, const double step) | |
685 | { | |
653d087e | 686 | double d, v; |
7bc3cfe6 UH |
687 | GVariant *gvar, *range[2]; |
688 | GVariantBuilder gvb; | |
689 | ||
690 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
691 | ||
e59c5851 | 692 | for (d = min; d <= max + step / 2.0; d += step) { |
653d087e SA |
693 | /* |
694 | * We will never see exactly 0.0 because of the error we're | |
695 | * accumulating, so catch the "zero" value and force it to be 0. | |
696 | */ | |
695aeaf7 | 697 | v = ((d > (-step / 2.0)) && (d < (step / 2.0))) ? 0 : d; |
653d087e SA |
698 | |
699 | range[0] = g_variant_new_double(v); | |
700 | range[1] = g_variant_new_double(v); | |
7bc3cfe6 | 701 | |
695aeaf7 | 702 | gvar = g_variant_new_tuple(range, ARRAY_SIZE(range)); |
7bc3cfe6 UH |
703 | g_variant_builder_add_value(&gvb, gvar); |
704 | } | |
705 | ||
706 | return g_variant_builder_end(&gvb); | |
707 | } | |
105df674 | 708 | |
a162eeb2 UH |
709 | SR_PRIV GVariant *std_gvar_tuple_u64(uint64_t low, uint64_t high) |
710 | { | |
711 | GVariant *range[2]; | |
712 | ||
713 | range[0] = g_variant_new_uint64(low); | |
714 | range[1] = g_variant_new_uint64(high); | |
715 | ||
695aeaf7 | 716 | return g_variant_new_tuple(range, ARRAY_SIZE(range)); |
a162eeb2 UH |
717 | } |
718 | ||
43995cda UH |
719 | SR_PRIV GVariant *std_gvar_tuple_double(double low, double high) |
720 | { | |
721 | GVariant *range[2]; | |
722 | ||
723 | range[0] = g_variant_new_double(low); | |
724 | range[1] = g_variant_new_double(high); | |
725 | ||
695aeaf7 | 726 | return g_variant_new_tuple(range, ARRAY_SIZE(range)); |
43995cda UH |
727 | } |
728 | ||
769561cb | 729 | SR_PRIV GVariant *std_gvar_array_i32(const int32_t a[], unsigned int n) |
105df674 UH |
730 | { |
731 | return g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
732 | a, n, sizeof(int32_t)); | |
733 | } | |
734 | ||
769561cb | 735 | SR_PRIV GVariant *std_gvar_array_u32(const uint32_t a[], unsigned int n) |
105df674 UH |
736 | { |
737 | return g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
738 | a, n, sizeof(uint32_t)); | |
739 | } | |
740 | ||
769561cb | 741 | SR_PRIV GVariant *std_gvar_array_u64(const uint64_t a[], unsigned int n) |
105df674 UH |
742 | { |
743 | return g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64, | |
744 | a, n, sizeof(uint64_t)); | |
745 | } | |
9fb9afb5 | 746 | |
70635036 FS |
747 | SR_PRIV GVariant *std_gvar_array_str(const char *a[], unsigned int n) |
748 | { | |
749 | GVariant *gvar; | |
750 | GVariantBuilder *builder; | |
751 | unsigned int i; | |
752 | ||
753 | builder = g_variant_builder_new(G_VARIANT_TYPE ("as")); | |
754 | ||
755 | for (i = 0; i < n; i++) | |
756 | g_variant_builder_add(builder, "s", a[i]); | |
757 | ||
758 | gvar = g_variant_new("as", builder); | |
759 | g_variant_builder_unref(builder); | |
760 | ||
761 | return gvar; | |
762 | } | |
763 | ||
94e64a0b | 764 | SR_PRIV GVariant *std_gvar_thresholds(const double a[][2], unsigned int n) |
9fb9afb5 UH |
765 | { |
766 | unsigned int i; | |
767 | GVariant *gvar, *range[2]; | |
768 | GVariantBuilder gvb; | |
769 | ||
770 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
771 | ||
772 | for (i = 0; i < n; i++) { | |
94e64a0b UH |
773 | range[0] = g_variant_new_double(a[i][0]); |
774 | range[1] = g_variant_new_double(a[i][1]); | |
695aeaf7 | 775 | gvar = g_variant_new_tuple(range, ARRAY_SIZE(range)); |
9fb9afb5 UH |
776 | g_variant_builder_add_value(&gvb, gvar); |
777 | } | |
778 | ||
779 | return g_variant_builder_end(&gvb); | |
780 | } | |
697fb6dd UH |
781 | |
782 | /* Return the index of 'data' in the array 'arr' (or -1). */ | |
783 | static int find_in_array(GVariant *data, const GVariantType *type, | |
784 | const void *arr, unsigned int n) | |
785 | { | |
786 | const char * const *sarr; | |
787 | const char *s; | |
788 | const uint64_t *u64arr; | |
789 | const uint8_t *u8arr; | |
790 | uint64_t u64; | |
791 | uint8_t u8; | |
792 | unsigned int i; | |
793 | ||
794 | if (!g_variant_is_of_type(data, type)) | |
795 | return -1; | |
796 | ||
797 | switch (g_variant_classify(data)) { | |
798 | case G_VARIANT_CLASS_STRING: | |
799 | s = g_variant_get_string(data, NULL); | |
800 | sarr = arr; | |
801 | ||
802 | for (i = 0; i < n; i++) | |
803 | if (!strcmp(s, sarr[i])) | |
804 | return i; | |
805 | break; | |
806 | case G_VARIANT_CLASS_UINT64: | |
807 | u64 = g_variant_get_uint64(data); | |
808 | u64arr = arr; | |
809 | ||
810 | for (i = 0; i < n; i++) | |
811 | if (u64 == u64arr[i]) | |
812 | return i; | |
813 | break; | |
814 | case G_VARIANT_CLASS_BYTE: | |
815 | u8 = g_variant_get_byte(data); | |
816 | u8arr = arr; | |
817 | ||
818 | for (i = 0; i < n; i++) | |
819 | if (u8 == u8arr[i]) | |
820 | return i; | |
821 | default: | |
822 | break; | |
823 | } | |
824 | ||
825 | return -1; | |
826 | } | |
827 | ||
828 | SR_PRIV int std_str_idx(GVariant *data, const char *a[], unsigned int n) | |
829 | { | |
830 | return find_in_array(data, G_VARIANT_TYPE_STRING, a, n); | |
831 | } | |
832 | ||
833 | SR_PRIV int std_u64_idx(GVariant *data, const uint64_t a[], unsigned int n) | |
834 | { | |
835 | return find_in_array(data, G_VARIANT_TYPE_UINT64, a, n); | |
836 | } | |
837 | ||
838 | SR_PRIV int std_u8_idx(GVariant *data, const uint8_t a[], unsigned int n) | |
839 | { | |
840 | return find_in_array(data, G_VARIANT_TYPE_BYTE, a, n); | |
841 | } | |
842 | ||
843 | SR_PRIV int std_str_idx_s(const char *s, const char *a[], unsigned int n) | |
844 | { | |
845 | int idx; | |
846 | GVariant *data; | |
847 | ||
848 | data = g_variant_new_string(s); | |
849 | idx = find_in_array(data, G_VARIANT_TYPE_STRING, a, n); | |
850 | g_variant_unref(data); | |
851 | ||
852 | return idx; | |
853 | } | |
854 | ||
855 | SR_PRIV int std_u8_idx_s(uint8_t b, const uint8_t a[], unsigned int n) | |
856 | { | |
857 | int idx; | |
858 | GVariant *data; | |
859 | ||
860 | data = g_variant_new_byte(b); | |
861 | idx = find_in_array(data, G_VARIANT_TYPE_BYTE, a, n); | |
862 | g_variant_unref(data); | |
863 | ||
864 | return idx; | |
865 | } | |
866 | ||
867 | SR_PRIV int std_u64_tuple_idx(GVariant *data, const uint64_t a[][2], unsigned int n) | |
868 | { | |
869 | unsigned int i; | |
870 | uint64_t low, high; | |
871 | ||
872 | g_variant_get(data, "(tt)", &low, &high); | |
873 | ||
874 | for (i = 0; i < n; i++) | |
875 | if (a[i][0] == low && a[i][1] == high) | |
876 | return i; | |
877 | ||
878 | return -1; | |
879 | } | |
880 | ||
881 | SR_PRIV int std_double_tuple_idx(GVariant *data, const double a[][2], unsigned int n) | |
882 | { | |
883 | unsigned int i; | |
884 | double low, high; | |
885 | ||
886 | g_variant_get(data, "(dd)", &low, &high); | |
887 | ||
888 | for (i = 0; i < n; i++) | |
889 | if ((fabs(a[i][0] - low) < 0.1) && ((fabs(a[i][1] - high) < 0.1))) | |
890 | return i; | |
891 | ||
892 | return -1; | |
893 | } | |
894 | ||
895 | SR_PRIV int std_double_tuple_idx_d0(const double d, const double a[][2], unsigned int n) | |
896 | { | |
897 | unsigned int i; | |
898 | ||
899 | for (i = 0; i < n; i++) | |
900 | if (d == a[i][0]) | |
901 | return i; | |
902 | ||
903 | return -1; | |
904 | } | |
fcd6a8bd UH |
905 | |
906 | SR_PRIV int std_cg_idx(const struct sr_channel_group *cg, struct sr_channel_group *a[], unsigned int n) | |
907 | { | |
908 | unsigned int i; | |
909 | ||
910 | for (i = 0; i < n; i++) | |
911 | if (cg == a[i]) | |
912 | return i; | |
913 | ||
914 | return -1; | |
915 | } | |
c0aa074e UH |
916 | |
917 | SR_PRIV int std_dummy_set_params(struct sr_serial_dev_inst *serial, | |
918 | int baudrate, int bits, int parity, int stopbits, | |
919 | int flowcontrol, int rts, int dtr) | |
920 | { | |
921 | (void)serial; | |
922 | (void)baudrate; | |
923 | (void)bits; | |
924 | (void)parity; | |
925 | (void)stopbits; | |
926 | (void)flowcontrol; | |
927 | (void)rts; | |
928 | (void)dtr; | |
929 | ||
930 | return SR_OK; | |
931 | } | |
932 | ||
3ad30b4e GS |
933 | SR_PRIV int std_dummy_set_handshake(struct sr_serial_dev_inst *serial, |
934 | int rts, int dtr) | |
935 | { | |
936 | (void)serial; | |
937 | (void)rts; | |
938 | (void)dtr; | |
939 | ||
940 | return SR_OK; | |
941 | } |