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1 | /* | |
2 | * This file is part of the libsigrok project. | |
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 | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | /** | |
21 | * @file | |
22 | * | |
23 | * Standard API helper functions. | |
24 | * | |
25 | * @internal | |
26 | */ | |
27 | ||
28 | /* Needed for gettimeofday(), at least on FreeBSD. */ | |
29 | #define _XOPEN_SOURCE 700 | |
30 | ||
31 | #include <config.h> | |
32 | #include <string.h> | |
33 | #include <math.h> | |
34 | #include <sys/time.h> | |
35 | #include <glib.h> | |
36 | #include <libsigrok/libsigrok.h> | |
37 | #include "libsigrok-internal.h" | |
38 | #include "scpi.h" | |
39 | ||
40 | #define LOG_PREFIX "std" | |
41 | ||
42 | SR_PRIV const uint32_t NO_OPTS[1] = {}; | |
43 | ||
44 | /** | |
45 | * Standard driver init() callback API helper. | |
46 | * | |
47 | * This function can be used to simplify most driver's init() API callback. | |
48 | * | |
49 | * Create a new 'struct drv_context' (drvc), assign sr_ctx to it, and | |
50 | * then assign 'drvc' to the 'struct sr_dev_driver' (di) that is passed. | |
51 | * | |
52 | * @param[in] di The driver instance to use. Must not be NULL. | |
53 | * @param[in] sr_ctx The libsigrok context to assign. May be NULL. | |
54 | * | |
55 | * @retval SR_OK Success. | |
56 | * @retval SR_ERR_ARG Invalid argument. | |
57 | */ | |
58 | SR_PRIV int std_init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
59 | { | |
60 | struct drv_context *drvc; | |
61 | ||
62 | if (!di) { | |
63 | sr_err("%s: Invalid argument.", __func__); | |
64 | return SR_ERR_ARG; | |
65 | } | |
66 | ||
67 | drvc = g_malloc0(sizeof(struct drv_context)); | |
68 | drvc->sr_ctx = sr_ctx; | |
69 | drvc->instances = NULL; | |
70 | di->context = drvc; | |
71 | ||
72 | return SR_OK; | |
73 | } | |
74 | ||
75 | /** | |
76 | * Standard driver cleanup() callback API helper. | |
77 | * | |
78 | * This function can be used to simplify most driver's cleanup() API callback. | |
79 | * | |
80 | * Free all device instances by calling sr_dev_clear() and then release any | |
81 | * resources allocated by std_init(). | |
82 | * | |
83 | * @param[in] di The driver instance to use. Must not be NULL. | |
84 | * | |
85 | * @retval SR_OK Success. | |
86 | * @retval SR_ERR_ARG Invalid argument. | |
87 | * @retval other Other error. | |
88 | */ | |
89 | SR_PRIV int std_cleanup(const struct sr_dev_driver *di) | |
90 | { | |
91 | int ret; | |
92 | ||
93 | if (!di) { | |
94 | sr_err("%s: Invalid argument.", __func__); | |
95 | return SR_ERR_ARG; | |
96 | } | |
97 | ||
98 | ret = sr_dev_clear(di); | |
99 | g_free(di->context); | |
100 | ||
101 | return ret; | |
102 | } | |
103 | ||
104 | /** | |
105 | * Dummmy driver dev_open() callback API helper. | |
106 | * | |
107 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
108 | * | |
109 | * @retval SR_OK Success. | |
110 | */ | |
111 | SR_PRIV int std_dummy_dev_open(struct sr_dev_inst *sdi) | |
112 | { | |
113 | (void)sdi; | |
114 | ||
115 | return SR_OK; | |
116 | } | |
117 | ||
118 | /** | |
119 | * Dummmy driver dev_close() callback API helper. | |
120 | * | |
121 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
122 | * | |
123 | * @retval SR_OK Success. | |
124 | */ | |
125 | SR_PRIV int std_dummy_dev_close(struct sr_dev_inst *sdi) | |
126 | { | |
127 | (void)sdi; | |
128 | ||
129 | return SR_OK; | |
130 | } | |
131 | ||
132 | /** | |
133 | * Dummmy driver dev_acquisition_start() callback API helper. | |
134 | * | |
135 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
136 | * | |
137 | * @retval SR_OK Success. | |
138 | */ | |
139 | SR_PRIV int std_dummy_dev_acquisition_start(const struct sr_dev_inst *sdi) | |
140 | { | |
141 | (void)sdi; | |
142 | ||
143 | return SR_OK; | |
144 | } | |
145 | ||
146 | /** | |
147 | * Dummmy driver dev_acquisition_stop() callback API helper. | |
148 | * | |
149 | * @param[in] sdi The device instance to use. May be NULL (unused). | |
150 | * | |
151 | * @retval SR_OK Success. | |
152 | */ | |
153 | SR_PRIV int std_dummy_dev_acquisition_stop(struct sr_dev_inst *sdi) | |
154 | { | |
155 | (void)sdi; | |
156 | ||
157 | return SR_OK; | |
158 | } | |
159 | ||
160 | /** | |
161 | * Standard API helper for sending an SR_DF_HEADER packet. | |
162 | * | |
163 | * This function can be used to simplify most drivers' | |
164 | * dev_acquisition_start() API callback. | |
165 | * | |
166 | * @param[in] sdi The device instance to use. Must not be NULL. | |
167 | * | |
168 | * @retval SR_OK Success. | |
169 | * @retval SR_ERR_ARG Invalid argument. | |
170 | * @retval other Other error. | |
171 | */ | |
172 | SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi) | |
173 | { | |
174 | const char *prefix; | |
175 | int ret; | |
176 | struct sr_datafeed_packet packet; | |
177 | struct sr_datafeed_header header; | |
178 | ||
179 | if (!sdi) { | |
180 | sr_err("%s: Invalid argument.", __func__); | |
181 | return SR_ERR_ARG; | |
182 | } | |
183 | ||
184 | prefix = (sdi->driver) ? sdi->driver->name : "unknown"; | |
185 | ||
186 | /* Send header packet to the session bus. */ | |
187 | packet.type = SR_DF_HEADER; | |
188 | packet.payload = (uint8_t *)&header; | |
189 | header.feed_version = 1; | |
190 | gettimeofday(&header.starttime, NULL); | |
191 | ||
192 | if ((ret = sr_session_send(sdi, &packet)) < 0) { | |
193 | sr_err("%s: Failed to send SR_DF_HEADER packet: %d.", prefix, ret); | |
194 | return ret; | |
195 | } | |
196 | ||
197 | return SR_OK; | |
198 | } | |
199 | ||
200 | /** | |
201 | * Standard API helper for sending an SR_DF_END packet. | |
202 | * | |
203 | * This function can be used to simplify most drivers' | |
204 | * dev_acquisition_stop() API callback. | |
205 | * | |
206 | * @param[in] sdi The device instance to use. Must not be NULL. | |
207 | * | |
208 | * @retval SR_OK Success. | |
209 | * @retval SR_ERR_ARG Invalid argument. | |
210 | * @retval other Other error. | |
211 | */ | |
212 | SR_PRIV int std_session_send_df_end(const struct sr_dev_inst *sdi) | |
213 | { | |
214 | const char *prefix; | |
215 | int ret; | |
216 | struct sr_datafeed_packet packet; | |
217 | ||
218 | if (!sdi) { | |
219 | sr_err("%s: Invalid argument.", __func__); | |
220 | return SR_ERR_ARG; | |
221 | } | |
222 | ||
223 | prefix = (sdi->driver) ? sdi->driver->name : "unknown"; | |
224 | ||
225 | packet.type = SR_DF_END; | |
226 | packet.payload = NULL; | |
227 | ||
228 | if ((ret = sr_session_send(sdi, &packet)) < 0) { | |
229 | sr_err("%s: Failed to send SR_DF_END packet: %d.", prefix, ret); | |
230 | return ret; | |
231 | } | |
232 | ||
233 | return SR_OK; | |
234 | } | |
235 | ||
236 | /** | |
237 | * Standard API helper for sending an SR_DF_FRAME_BEGIN packet. | |
238 | * | |
239 | * This function can be used to simplify most drivers' | |
240 | * frame handling. | |
241 | * | |
242 | * @param[in] sdi The device instance to use. Must not be NULL. | |
243 | * | |
244 | * @retval SR_OK Success. | |
245 | * @retval SR_ERR_ARG Invalid argument. | |
246 | * @retval other Other error. | |
247 | */ | |
248 | SR_PRIV int std_session_send_frame_begin(const struct sr_dev_inst *sdi) | |
249 | { | |
250 | const char *prefix; | |
251 | int ret; | |
252 | struct sr_datafeed_packet packet; | |
253 | ||
254 | if (!sdi) { | |
255 | sr_err("%s: Invalid argument.", __func__); | |
256 | return SR_ERR_ARG; | |
257 | } | |
258 | ||
259 | prefix = (sdi->driver) ? sdi->driver->name : "unknown"; | |
260 | ||
261 | packet.type = SR_DF_FRAME_BEGIN; | |
262 | packet.payload = NULL; | |
263 | ||
264 | if ((ret = sr_session_send(sdi, &packet)) < 0) { | |
265 | sr_err("%s: Failed to send SR_DF_FRAME_BEGIN packet: %d.", prefix, ret); | |
266 | return ret; | |
267 | } | |
268 | ||
269 | return SR_OK; | |
270 | } | |
271 | ||
272 | /** | |
273 | * Standard API helper for sending an SR_DF_FRAME_END packet. | |
274 | * | |
275 | * This function can be used to simplify most drivers' | |
276 | * frame handling. | |
277 | * | |
278 | * @param[in] sdi The device instance to use. Must not be NULL. | |
279 | * | |
280 | * @retval SR_OK Success. | |
281 | * @retval SR_ERR_ARG Invalid argument. | |
282 | * @retval other Other error. | |
283 | */ | |
284 | SR_PRIV int std_session_send_frame_end(const struct sr_dev_inst *sdi) | |
285 | { | |
286 | const char *prefix; | |
287 | int ret; | |
288 | struct sr_datafeed_packet packet; | |
289 | ||
290 | if (!sdi) { | |
291 | sr_err("%s: Invalid argument.", __func__); | |
292 | return SR_ERR_ARG; | |
293 | } | |
294 | ||
295 | prefix = (sdi->driver) ? sdi->driver->name : "unknown"; | |
296 | ||
297 | packet.type = SR_DF_FRAME_END; | |
298 | packet.payload = NULL; | |
299 | ||
300 | if ((ret = sr_session_send(sdi, &packet)) < 0) { | |
301 | sr_err("%s: Failed to send SR_DF_FRAME_END packet: %d.", prefix, ret); | |
302 | return ret; | |
303 | } | |
304 | ||
305 | return SR_OK; | |
306 | } | |
307 | ||
308 | #ifdef HAVE_SERIAL_COMM | |
309 | ||
310 | /** | |
311 | * Standard serial driver dev_open() callback API helper. | |
312 | * | |
313 | * This function can be used to implement the dev_open() driver API | |
314 | * callback in drivers that use a serial port. The port is opened | |
315 | * with the SERIAL_RDWR flag. | |
316 | * | |
317 | * @param[in] sdi The device instance to use. Must not be NULL. | |
318 | * | |
319 | * @retval SR_OK Success. | |
320 | * @retval SR_ERR_ARG Invalid argument. | |
321 | * @retval other Serial port open failed. | |
322 | */ | |
323 | SR_PRIV int std_serial_dev_open(struct sr_dev_inst *sdi) | |
324 | { | |
325 | struct sr_serial_dev_inst *serial; | |
326 | ||
327 | if (!sdi) { | |
328 | sr_err("%s: Invalid argument.", __func__); | |
329 | return SR_ERR_ARG; | |
330 | } | |
331 | ||
332 | serial = sdi->conn; | |
333 | ||
334 | return serial_open(serial, SERIAL_RDWR); | |
335 | } | |
336 | ||
337 | /** | |
338 | * Standard serial driver dev_close() callback API helper. | |
339 | * | |
340 | * This function can be used to implement the dev_close() driver API | |
341 | * callback in drivers that use a serial port. | |
342 | * | |
343 | * @param[in] sdi The device instance to use. Must not be NULL. | |
344 | * | |
345 | * @retval SR_OK Success. | |
346 | * @retval SR_ERR_ARG Invalid argument. | |
347 | * @retval other Serial port close failed. | |
348 | */ | |
349 | SR_PRIV int std_serial_dev_close(struct sr_dev_inst *sdi) | |
350 | { | |
351 | struct sr_serial_dev_inst *serial; | |
352 | ||
353 | if (!sdi) { | |
354 | sr_err("%s: Invalid argument.", __func__); | |
355 | return SR_ERR_ARG; | |
356 | } | |
357 | ||
358 | serial = sdi->conn; | |
359 | ||
360 | return serial_close(serial); | |
361 | } | |
362 | ||
363 | /** | |
364 | * Standard serial driver dev_acquisition_stop() callback API helper. | |
365 | * | |
366 | * This function can be used to simplify most (serial port based) drivers' | |
367 | * dev_acquisition_stop() API callback. | |
368 | * | |
369 | * @param[in] sdi The device instance for which acquisition should stop. | |
370 | * Must not be NULL. | |
371 | * | |
372 | * @retval SR_OK Success. | |
373 | * @retval SR_ERR_ARG Invalid argument. | |
374 | * @retval other Other error. | |
375 | */ | |
376 | SR_PRIV int std_serial_dev_acquisition_stop(struct sr_dev_inst *sdi) | |
377 | { | |
378 | struct sr_serial_dev_inst *serial; | |
379 | const char *prefix; | |
380 | int ret; | |
381 | ||
382 | if (!sdi) { | |
383 | sr_err("%s: Invalid argument.", __func__); | |
384 | return SR_ERR_ARG; | |
385 | } | |
386 | ||
387 | serial = sdi->conn; | |
388 | prefix = sdi->driver->name; | |
389 | ||
390 | if ((ret = serial_source_remove(sdi->session, serial)) < 0) { | |
391 | sr_err("%s: Failed to remove source: %d.", prefix, ret); | |
392 | return ret; | |
393 | } | |
394 | ||
395 | return std_session_send_df_end(sdi); | |
396 | } | |
397 | ||
398 | #endif | |
399 | ||
400 | /** | |
401 | * Standard driver dev_clear() callback API helper. | |
402 | * | |
403 | * Clear driver, this means, close all instances. | |
404 | * | |
405 | * This function can be used to implement the dev_clear() driver API | |
406 | * callback. dev_close() is called before every sr_dev_inst is cleared. | |
407 | * | |
408 | * The only limitation is driver-specific device contexts (sdi->priv / devc). | |
409 | * These are freed, but any dynamic allocation within structs stored | |
410 | * there cannot be freed. | |
411 | * | |
412 | * @param[in] driver The driver which will have its instances released. | |
413 | * Must not be NULL. | |
414 | * @param[in] clear_private If not NULL, this points to a function called | |
415 | * with sdi->priv (devc) as argument. The function can then clear | |
416 | * any device instance-specific resources kept there. | |
417 | * It must NOT clear the struct pointed to by sdi->priv (devc), | |
418 | * since this function will always free it after clear_private() | |
419 | * has run. | |
420 | * | |
421 | * @retval SR_OK Success. | |
422 | * @retval SR_ERR_ARG Invalid argument. | |
423 | * @retval SR_ERR_BUG Implementation bug. | |
424 | * @retval other Other error. | |
425 | */ | |
426 | SR_PRIV int std_dev_clear_with_callback(const struct sr_dev_driver *driver, | |
427 | std_dev_clear_callback clear_private) | |
428 | { | |
429 | struct drv_context *drvc; | |
430 | struct sr_dev_inst *sdi; | |
431 | GSList *l; | |
432 | int ret; | |
433 | ||
434 | if (!driver) { | |
435 | sr_err("%s: Invalid argument.", __func__); | |
436 | return SR_ERR_ARG; | |
437 | } | |
438 | ||
439 | drvc = driver->context; /* Caller checked for context != NULL. */ | |
440 | ||
441 | ret = SR_OK; | |
442 | for (l = drvc->instances; l; l = l->next) { | |
443 | if (!(sdi = l->data)) { | |
444 | sr_err("%s: Invalid device instance.", __func__); | |
445 | ret = SR_ERR_BUG; | |
446 | continue; | |
447 | } | |
448 | if (driver->dev_close) | |
449 | driver->dev_close(sdi); | |
450 | ||
451 | if (sdi->conn) { | |
452 | #ifdef HAVE_SERIAL_COMM | |
453 | if (sdi->inst_type == SR_INST_SERIAL) | |
454 | sr_serial_dev_inst_free(sdi->conn); | |
455 | #endif | |
456 | #ifdef HAVE_LIBUSB_1_0 | |
457 | if (sdi->inst_type == SR_INST_USB) | |
458 | sr_usb_dev_inst_free(sdi->conn); | |
459 | #endif | |
460 | if (sdi->inst_type == SR_INST_SCPI) | |
461 | sr_scpi_free(sdi->conn); | |
462 | if (sdi->inst_type == SR_INST_MODBUS) | |
463 | sr_modbus_free(sdi->conn); | |
464 | } | |
465 | ||
466 | /* Clear driver-specific stuff, if any. */ | |
467 | if (clear_private) | |
468 | clear_private(sdi->priv); | |
469 | ||
470 | /* Clear sdi->priv (devc). */ | |
471 | g_free(sdi->priv); | |
472 | ||
473 | sr_dev_inst_free(sdi); | |
474 | } | |
475 | ||
476 | g_slist_free(drvc->instances); | |
477 | drvc->instances = NULL; | |
478 | ||
479 | return ret; | |
480 | } | |
481 | ||
482 | SR_PRIV int std_dev_clear(const struct sr_dev_driver *driver) | |
483 | { | |
484 | return std_dev_clear_with_callback(driver, NULL); | |
485 | } | |
486 | ||
487 | /** | |
488 | * Standard driver dev_list() callback API helper. | |
489 | * | |
490 | * This function can be used as the dev_list() callback by most drivers. | |
491 | * | |
492 | * Return the devices contained in the driver context instances list. | |
493 | * | |
494 | * @param[in] di The driver instance to use. Must not be NULL. | |
495 | * | |
496 | * @retval NULL Error, or the list is empty. | |
497 | * @retval other The list of device instances of this driver. | |
498 | */ | |
499 | SR_PRIV GSList *std_dev_list(const struct sr_dev_driver *di) | |
500 | { | |
501 | struct drv_context *drvc; | |
502 | ||
503 | if (!di) { | |
504 | sr_err("%s: Invalid argument.", __func__); | |
505 | return NULL; | |
506 | } | |
507 | ||
508 | drvc = di->context; | |
509 | ||
510 | return drvc->instances; | |
511 | } | |
512 | ||
513 | /** | |
514 | * Standard driver scan() callback API helper. | |
515 | * | |
516 | * This function can be used to perform common tasks required by a driver's | |
517 | * scan() callback. It will initialize the driver for each device on the list | |
518 | * and add the devices on the list to the driver's device instance list. | |
519 | * Usually it should be used as the last step in the scan() callback, right | |
520 | * before returning. | |
521 | * | |
522 | * Note: This function can only be used if std_init() has been called | |
523 | * previously by the driver. | |
524 | * | |
525 | * Example: | |
526 | * @code{c} | |
527 | * static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
528 | * { | |
529 | * struct GSList *device; | |
530 | * struct sr_dev_inst *sdi; | |
531 | * | |
532 | * sdi = g_new0(sr_dev_inst, 1); | |
533 | * sdi->vendor = ...; | |
534 | * ... | |
535 | * devices = g_slist_append(devices, sdi); | |
536 | * ... | |
537 | * return std_scan_complete(di, devices); | |
538 | * } | |
539 | * @endcode | |
540 | * | |
541 | * @param[in] di The driver instance to use. Must not be NULL. | |
542 | * @param[in] devices List of newly discovered devices (struct sr_dev_inst). | |
543 | * May be NULL. | |
544 | * | |
545 | * @return The @p devices list. | |
546 | */ | |
547 | SR_PRIV GSList *std_scan_complete(struct sr_dev_driver *di, GSList *devices) | |
548 | { | |
549 | struct drv_context *drvc; | |
550 | GSList *l; | |
551 | ||
552 | if (!di) { | |
553 | sr_err("Invalid driver instance (di), cannot complete scan."); | |
554 | return NULL; | |
555 | } | |
556 | ||
557 | drvc = di->context; | |
558 | ||
559 | for (l = devices; l; l = l->next) { | |
560 | struct sr_dev_inst *sdi = l->data; | |
561 | if (!sdi) { | |
562 | sr_err("Invalid device instance, cannot complete scan."); | |
563 | return NULL; | |
564 | } | |
565 | sdi->driver = di; | |
566 | } | |
567 | ||
568 | drvc->instances = g_slist_concat(drvc->instances, g_slist_copy(devices)); | |
569 | ||
570 | return devices; | |
571 | } | |
572 | ||
573 | SR_PRIV int std_opts_config_list(uint32_t key, GVariant **data, | |
574 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, | |
575 | const uint32_t scanopts[], size_t scansize, const uint32_t drvopts[], | |
576 | size_t drvsize, const uint32_t devopts[], size_t devsize) | |
577 | { | |
578 | switch (key) { | |
579 | case SR_CONF_SCAN_OPTIONS: | |
580 | /* Always return scanopts, regardless of sdi or cg. */ | |
581 | if (!scanopts || scanopts == NO_OPTS) | |
582 | return SR_ERR_ARG; | |
583 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
584 | scanopts, scansize, sizeof(uint32_t)); | |
585 | break; | |
586 | case SR_CONF_DEVICE_OPTIONS: | |
587 | if (!sdi) { | |
588 | /* sdi == NULL: return drvopts. */ | |
589 | if (!drvopts || drvopts == NO_OPTS) | |
590 | return SR_ERR_ARG; | |
591 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
592 | drvopts, drvsize, sizeof(uint32_t)); | |
593 | } else if (sdi && !cg) { | |
594 | /* sdi != NULL, cg == NULL: return devopts. */ | |
595 | if (!devopts || devopts == NO_OPTS) | |
596 | return SR_ERR_ARG; | |
597 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
598 | devopts, devsize, sizeof(uint32_t)); | |
599 | } else { | |
600 | /* | |
601 | * Note: sdi != NULL, cg != NULL is not handled by | |
602 | * this function since it's very driver-specific. | |
603 | */ | |
604 | sr_err("%s: %s: sdi/cg != NULL: not handling.", | |
605 | sdi->driver->name, __func__); | |
606 | return SR_ERR_ARG; | |
607 | } | |
608 | break; | |
609 | default: | |
610 | return SR_ERR_NA; | |
611 | } | |
612 | ||
613 | return SR_OK; | |
614 | } | |
615 | ||
616 | SR_PRIV GVariant *std_gvar_tuple_array(const uint64_t a[][2], unsigned int n) | |
617 | { | |
618 | unsigned int i; | |
619 | GVariant *rational[2]; | |
620 | GVariantBuilder gvb; | |
621 | ||
622 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_TUPLE); | |
623 | ||
624 | for (i = 0; i < n; i++) { | |
625 | rational[0] = g_variant_new_uint64(a[i][0]); | |
626 | rational[1] = g_variant_new_uint64(a[i][1]); | |
627 | ||
628 | /* FIXME: Valgrind reports a memory leak here. */ | |
629 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2)); | |
630 | } | |
631 | ||
632 | return g_variant_builder_end(&gvb); | |
633 | } | |
634 | ||
635 | SR_PRIV GVariant *std_gvar_tuple_rational(const struct sr_rational *r, unsigned int n) | |
636 | { | |
637 | unsigned int i; | |
638 | GVariant *rational[2]; | |
639 | GVariantBuilder gvb; | |
640 | ||
641 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_TUPLE); | |
642 | ||
643 | for (i = 0; i < n; i++) { | |
644 | rational[0] = g_variant_new_uint64(r[i].p); | |
645 | rational[1] = g_variant_new_uint64(r[i].q); | |
646 | ||
647 | /* FIXME: Valgrind reports a memory leak here. */ | |
648 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2)); | |
649 | } | |
650 | ||
651 | return g_variant_builder_end(&gvb); | |
652 | } | |
653 | ||
654 | static GVariant *samplerate_helper(const uint64_t samplerates[], unsigned int n, const char *str) | |
655 | { | |
656 | GVariant *gvar; | |
657 | GVariantBuilder gvb; | |
658 | ||
659 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
660 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
661 | n, sizeof(uint64_t)); | |
662 | g_variant_builder_add(&gvb, "{sv}", str, gvar); | |
663 | ||
664 | return g_variant_builder_end(&gvb); | |
665 | } | |
666 | ||
667 | SR_PRIV GVariant *std_gvar_samplerates(const uint64_t samplerates[], unsigned int n) | |
668 | { | |
669 | return samplerate_helper(samplerates, n, "samplerates"); | |
670 | } | |
671 | ||
672 | SR_PRIV GVariant *std_gvar_samplerates_steps(const uint64_t samplerates[], unsigned int n) | |
673 | { | |
674 | return samplerate_helper(samplerates, n, "samplerate-steps"); | |
675 | } | |
676 | ||
677 | SR_PRIV GVariant *std_gvar_min_max_step(double min, double max, double step) | |
678 | { | |
679 | GVariantBuilder gvb; | |
680 | ||
681 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
682 | ||
683 | g_variant_builder_add_value(&gvb, g_variant_new_double(min)); | |
684 | g_variant_builder_add_value(&gvb, g_variant_new_double(max)); | |
685 | g_variant_builder_add_value(&gvb, g_variant_new_double(step)); | |
686 | ||
687 | return g_variant_builder_end(&gvb); | |
688 | } | |
689 | ||
690 | SR_PRIV GVariant *std_gvar_min_max_step_array(const double a[3]) | |
691 | { | |
692 | unsigned int i; | |
693 | GVariantBuilder gvb; | |
694 | ||
695 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
696 | ||
697 | for (i = 0; i < 3; i++) | |
698 | g_variant_builder_add_value(&gvb, g_variant_new_double(a[i])); | |
699 | ||
700 | return g_variant_builder_end(&gvb); | |
701 | } | |
702 | ||
703 | SR_PRIV GVariant *std_gvar_min_max_step_thresholds(const double min, const double max, const double step) | |
704 | { | |
705 | double d, v; | |
706 | GVariant *gvar, *range[2]; | |
707 | GVariantBuilder gvb; | |
708 | ||
709 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
710 | ||
711 | for (d = min; d <= max; d += step) { | |
712 | /* | |
713 | * We will never see exactly 0.0 because of the error we're | |
714 | * accumulating, so catch the "zero" value and force it to be 0. | |
715 | */ | |
716 | v = ((d > (-step / 2)) && (d < (step / 2))) ? 0 : d; | |
717 | ||
718 | range[0] = g_variant_new_double(v); | |
719 | range[1] = g_variant_new_double(v); | |
720 | ||
721 | gvar = g_variant_new_tuple(range, 2); | |
722 | g_variant_builder_add_value(&gvb, gvar); | |
723 | } | |
724 | ||
725 | return g_variant_builder_end(&gvb); | |
726 | } | |
727 | ||
728 | SR_PRIV GVariant *std_gvar_tuple_u64(uint64_t low, uint64_t high) | |
729 | { | |
730 | GVariant *range[2]; | |
731 | ||
732 | range[0] = g_variant_new_uint64(low); | |
733 | range[1] = g_variant_new_uint64(high); | |
734 | ||
735 | return g_variant_new_tuple(range, 2); | |
736 | } | |
737 | ||
738 | SR_PRIV GVariant *std_gvar_tuple_double(double low, double high) | |
739 | { | |
740 | GVariant *range[2]; | |
741 | ||
742 | range[0] = g_variant_new_double(low); | |
743 | range[1] = g_variant_new_double(high); | |
744 | ||
745 | return g_variant_new_tuple(range, 2); | |
746 | } | |
747 | ||
748 | SR_PRIV GVariant *std_gvar_array_i32(const int32_t a[], unsigned int n) | |
749 | { | |
750 | return g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
751 | a, n, sizeof(int32_t)); | |
752 | } | |
753 | ||
754 | SR_PRIV GVariant *std_gvar_array_u32(const uint32_t a[], unsigned int n) | |
755 | { | |
756 | return g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
757 | a, n, sizeof(uint32_t)); | |
758 | } | |
759 | ||
760 | SR_PRIV GVariant *std_gvar_array_u64(const uint64_t a[], unsigned int n) | |
761 | { | |
762 | return g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64, | |
763 | a, n, sizeof(uint64_t)); | |
764 | } | |
765 | ||
766 | SR_PRIV GVariant *std_gvar_array_str(const char *a[], unsigned int n) | |
767 | { | |
768 | GVariant *gvar; | |
769 | GVariantBuilder *builder; | |
770 | unsigned int i; | |
771 | ||
772 | builder = g_variant_builder_new(G_VARIANT_TYPE ("as")); | |
773 | ||
774 | for (i = 0; i < n; i++) | |
775 | g_variant_builder_add(builder, "s", a[i]); | |
776 | ||
777 | gvar = g_variant_new("as", builder); | |
778 | g_variant_builder_unref(builder); | |
779 | ||
780 | return gvar; | |
781 | } | |
782 | ||
783 | SR_PRIV GVariant *std_gvar_thresholds(const double a[][2], unsigned int n) | |
784 | { | |
785 | unsigned int i; | |
786 | GVariant *gvar, *range[2]; | |
787 | GVariantBuilder gvb; | |
788 | ||
789 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
790 | ||
791 | for (i = 0; i < n; i++) { | |
792 | range[0] = g_variant_new_double(a[i][0]); | |
793 | range[1] = g_variant_new_double(a[i][1]); | |
794 | gvar = g_variant_new_tuple(range, 2); | |
795 | g_variant_builder_add_value(&gvb, gvar); | |
796 | } | |
797 | ||
798 | return g_variant_builder_end(&gvb); | |
799 | } | |
800 | ||
801 | /* Return the index of 'data' in the array 'arr' (or -1). */ | |
802 | static int find_in_array(GVariant *data, const GVariantType *type, | |
803 | const void *arr, unsigned int n) | |
804 | { | |
805 | const char * const *sarr; | |
806 | const char *s; | |
807 | const uint64_t *u64arr; | |
808 | const uint8_t *u8arr; | |
809 | uint64_t u64; | |
810 | uint8_t u8; | |
811 | unsigned int i; | |
812 | ||
813 | if (!g_variant_is_of_type(data, type)) | |
814 | return -1; | |
815 | ||
816 | switch (g_variant_classify(data)) { | |
817 | case G_VARIANT_CLASS_STRING: | |
818 | s = g_variant_get_string(data, NULL); | |
819 | sarr = arr; | |
820 | ||
821 | for (i = 0; i < n; i++) | |
822 | if (!strcmp(s, sarr[i])) | |
823 | return i; | |
824 | break; | |
825 | case G_VARIANT_CLASS_UINT64: | |
826 | u64 = g_variant_get_uint64(data); | |
827 | u64arr = arr; | |
828 | ||
829 | for (i = 0; i < n; i++) | |
830 | if (u64 == u64arr[i]) | |
831 | return i; | |
832 | break; | |
833 | case G_VARIANT_CLASS_BYTE: | |
834 | u8 = g_variant_get_byte(data); | |
835 | u8arr = arr; | |
836 | ||
837 | for (i = 0; i < n; i++) | |
838 | if (u8 == u8arr[i]) | |
839 | return i; | |
840 | default: | |
841 | break; | |
842 | } | |
843 | ||
844 | return -1; | |
845 | } | |
846 | ||
847 | SR_PRIV int std_str_idx(GVariant *data, const char *a[], unsigned int n) | |
848 | { | |
849 | return find_in_array(data, G_VARIANT_TYPE_STRING, a, n); | |
850 | } | |
851 | ||
852 | SR_PRIV int std_u64_idx(GVariant *data, const uint64_t a[], unsigned int n) | |
853 | { | |
854 | return find_in_array(data, G_VARIANT_TYPE_UINT64, a, n); | |
855 | } | |
856 | ||
857 | SR_PRIV int std_u8_idx(GVariant *data, const uint8_t a[], unsigned int n) | |
858 | { | |
859 | return find_in_array(data, G_VARIANT_TYPE_BYTE, a, n); | |
860 | } | |
861 | ||
862 | SR_PRIV int std_str_idx_s(const char *s, const char *a[], unsigned int n) | |
863 | { | |
864 | int idx; | |
865 | GVariant *data; | |
866 | ||
867 | data = g_variant_new_string(s); | |
868 | idx = find_in_array(data, G_VARIANT_TYPE_STRING, a, n); | |
869 | g_variant_unref(data); | |
870 | ||
871 | return idx; | |
872 | } | |
873 | ||
874 | SR_PRIV int std_u8_idx_s(uint8_t b, const uint8_t a[], unsigned int n) | |
875 | { | |
876 | int idx; | |
877 | GVariant *data; | |
878 | ||
879 | data = g_variant_new_byte(b); | |
880 | idx = find_in_array(data, G_VARIANT_TYPE_BYTE, a, n); | |
881 | g_variant_unref(data); | |
882 | ||
883 | return idx; | |
884 | } | |
885 | ||
886 | SR_PRIV int std_u64_tuple_idx(GVariant *data, const uint64_t a[][2], unsigned int n) | |
887 | { | |
888 | unsigned int i; | |
889 | uint64_t low, high; | |
890 | ||
891 | g_variant_get(data, "(tt)", &low, &high); | |
892 | ||
893 | for (i = 0; i < n; i++) | |
894 | if (a[i][0] == low && a[i][1] == high) | |
895 | return i; | |
896 | ||
897 | return -1; | |
898 | } | |
899 | ||
900 | SR_PRIV int std_double_tuple_idx(GVariant *data, const double a[][2], unsigned int n) | |
901 | { | |
902 | unsigned int i; | |
903 | double low, high; | |
904 | ||
905 | g_variant_get(data, "(dd)", &low, &high); | |
906 | ||
907 | for (i = 0; i < n; i++) | |
908 | if ((fabs(a[i][0] - low) < 0.1) && ((fabs(a[i][1] - high) < 0.1))) | |
909 | return i; | |
910 | ||
911 | return -1; | |
912 | } | |
913 | ||
914 | SR_PRIV int std_double_tuple_idx_d0(const double d, const double a[][2], unsigned int n) | |
915 | { | |
916 | unsigned int i; | |
917 | ||
918 | for (i = 0; i < n; i++) | |
919 | if (d == a[i][0]) | |
920 | return i; | |
921 | ||
922 | return -1; | |
923 | } | |
924 | ||
925 | SR_PRIV int std_cg_idx(const struct sr_channel_group *cg, struct sr_channel_group *a[], unsigned int n) | |
926 | { | |
927 | unsigned int i; | |
928 | ||
929 | for (i = 0; i < n; i++) | |
930 | if (cg == a[i]) | |
931 | return i; | |
932 | ||
933 | return -1; | |
934 | } | |
935 | ||
936 | SR_PRIV int std_dummy_set_params(struct sr_serial_dev_inst *serial, | |
937 | int baudrate, int bits, int parity, int stopbits, | |
938 | int flowcontrol, int rts, int dtr) | |
939 | { | |
940 | (void)serial; | |
941 | (void)baudrate; | |
942 | (void)bits; | |
943 | (void)parity; | |
944 | (void)stopbits; | |
945 | (void)flowcontrol; | |
946 | (void)rts; | |
947 | (void)dtr; | |
948 | ||
949 | return SR_OK; | |
950 | } | |
951 |