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10763937 SA |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2014 abraxa (Soeren Apel) <soeren@apelpie.net> | |
5 | * Based on the Hameg HMO driver by poljar (Damir Jelić) <poljarinho@gmail.com> | |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
a9308652 UH |
21 | /** |
22 | * @file | |
23 | * | |
8ab929d6 SA |
24 | * <em>Yokogawa DL/DLM series</em> oscilloscope driver |
25 | * @internal | |
26 | */ | |
27 | ||
10763937 SA |
28 | #include "protocol.h" |
29 | ||
8ab929d6 SA |
30 | static const char *dlm_coupling_options[] = { |
31 | "AC", | |
32 | "DC", | |
33 | "DC50", | |
34 | "GND", | |
35 | NULL, | |
36 | }; | |
37 | ||
8ab929d6 SA |
38 | static const char *dlm_2ch_trigger_sources[] = { |
39 | "1", | |
40 | "2", | |
41 | "LINE", | |
42 | "EXT", | |
43 | NULL, | |
44 | }; | |
45 | ||
46 | /* TODO: Is BITx handled correctly or is Dx required? */ | |
47 | static const char *dlm_4ch_trigger_sources[] = { | |
48 | "1", | |
49 | "2", | |
50 | "3", | |
51 | "4", | |
52 | "LINE", | |
53 | "EXT", | |
54 | "BIT1", | |
55 | "BIT2", | |
56 | "BIT3", | |
57 | "BIT4", | |
58 | "BIT5", | |
59 | "BIT6", | |
60 | "BIT7", | |
61 | "BIT8", | |
62 | NULL, | |
63 | }; | |
64 | ||
a9308652 | 65 | /* Note: Values must correlate to the trigger_slopes values. */ |
f3c60fb6 SA |
66 | const char *dlm_trigger_slopes[3] = { |
67 | "r", | |
68 | "f", | |
69 | NULL, | |
70 | }; | |
71 | ||
72 | const uint64_t dlm_timebases[36][2] = { | |
8ab929d6 SA |
73 | /* nanoseconds */ |
74 | { 1, 1000000000 }, | |
75 | { 2, 1000000000 }, | |
76 | { 5, 1000000000 }, | |
77 | { 10, 1000000000 }, | |
78 | { 20, 1000000000 }, | |
79 | { 50, 1000000000 }, | |
80 | { 100, 1000000000 }, | |
81 | { 200, 1000000000 }, | |
82 | { 500, 1000000000 }, | |
83 | /* microseconds */ | |
84 | { 1, 1000000 }, | |
85 | { 2, 1000000 }, | |
86 | { 5, 1000000 }, | |
87 | { 10, 1000000 }, | |
88 | { 20, 1000000 }, | |
89 | { 50, 1000000 }, | |
90 | { 100, 1000000 }, | |
91 | { 200, 1000000 }, | |
92 | { 500, 1000000 }, | |
93 | /* milliseconds */ | |
94 | { 1, 1000 }, | |
95 | { 2, 1000 }, | |
96 | { 5, 1000 }, | |
97 | { 10, 1000 }, | |
98 | { 20, 1000 }, | |
99 | { 50, 1000 }, | |
100 | { 100, 1000 }, | |
101 | { 200, 1000 }, | |
102 | { 500, 1000 }, | |
103 | /* seconds */ | |
104 | { 1, 1 }, | |
105 | { 2, 1 }, | |
106 | { 5, 1 }, | |
107 | { 10, 1 }, | |
108 | { 20, 1 }, | |
109 | { 50, 1 }, | |
110 | { 100, 1 }, | |
111 | { 200, 1 }, | |
112 | { 500, 1 }, | |
113 | }; | |
114 | ||
f3c60fb6 | 115 | const uint64_t dlm_vdivs[17][2] = { |
8ab929d6 SA |
116 | /* millivolts */ |
117 | { 2, 1000 }, | |
118 | { 5, 1000 }, | |
119 | { 10, 1000 }, | |
120 | { 20, 1000 }, | |
121 | { 50, 1000 }, | |
122 | { 100, 1000 }, | |
123 | { 200, 1000 }, | |
124 | { 500, 1000 }, | |
125 | /* volts */ | |
126 | { 1, 1 }, | |
127 | { 2, 1 }, | |
128 | { 5, 1 }, | |
129 | { 10, 1 }, | |
130 | { 20, 1 }, | |
131 | { 50, 1 }, | |
132 | { 100, 1 }, | |
133 | { 200, 1 }, | |
134 | { 500, 1 }, | |
135 | }; | |
136 | ||
137 | static const char *scope_analog_channel_names[] = { | |
138 | "1", | |
139 | "2", | |
140 | "3", | |
a9308652 | 141 | "4", |
8ab929d6 SA |
142 | }; |
143 | ||
7048bb1f | 144 | static const char *scope_digital_channel_names_8[] = { |
8ab929d6 SA |
145 | "D0", |
146 | "D1", | |
147 | "D2", | |
148 | "D3", | |
149 | "D4", | |
150 | "D5", | |
151 | "D6", | |
a9308652 | 152 | "D7", |
8ab929d6 SA |
153 | }; |
154 | ||
7048bb1f SA |
155 | static const char *scope_digital_channel_names_32[] = { |
156 | "A0", | |
157 | "A1", | |
158 | "A2", | |
159 | "A3", | |
160 | "A4", | |
161 | "A5", | |
162 | "A6", | |
163 | "A7", | |
164 | "B0", | |
165 | "B1", | |
166 | "B2", | |
167 | "B3", | |
168 | "B4", | |
169 | "B5", | |
170 | "B6", | |
171 | "B7", | |
172 | "C0", | |
173 | "C1", | |
174 | "C2", | |
175 | "C3", | |
176 | "C4", | |
177 | "C5", | |
178 | "C6", | |
179 | "C7", | |
180 | "D0", | |
181 | "D1", | |
182 | "D2", | |
183 | "D3", | |
184 | "D4", | |
185 | "D5", | |
186 | "D6", | |
187 | "D7", | |
188 | }; | |
189 | ||
329733d9 | 190 | static const struct scope_config scope_models[] = { |
8ab929d6 SA |
191 | { |
192 | .model_id = {"710105", "710115", "710125", NULL}, | |
193 | .model_name = {"DLM2022", "DLM2032", "DLM2052", NULL}, | |
194 | .analog_channels = 2, | |
195 | .digital_channels = 0, | |
196 | .pods = 0, | |
197 | ||
198 | .analog_names = &scope_analog_channel_names, | |
7048bb1f | 199 | .digital_names = &scope_digital_channel_names_8, |
8ab929d6 | 200 | |
8ab929d6 SA |
201 | .coupling_options = &dlm_coupling_options, |
202 | .trigger_sources = &dlm_2ch_trigger_sources, | |
8ab929d6 SA |
203 | |
204 | .num_xdivs = 10, | |
205 | .num_ydivs = 8, | |
206 | }, | |
207 | { | |
208 | .model_id = {"710110", "710120", "710130", NULL}, | |
209 | .model_name = {"DLM2024", "DLM2034", "DLM2054", NULL}, | |
210 | .analog_channels = 4, | |
211 | .digital_channels = 8, | |
212 | .pods = 1, | |
213 | ||
214 | .analog_names = &scope_analog_channel_names, | |
7048bb1f SA |
215 | .digital_names = &scope_digital_channel_names_8, |
216 | ||
7048bb1f SA |
217 | .coupling_options = &dlm_coupling_options, |
218 | .trigger_sources = &dlm_4ch_trigger_sources, | |
7048bb1f SA |
219 | |
220 | .num_xdivs = 10, | |
221 | .num_ydivs = 8, | |
222 | }, | |
223 | { | |
224 | .model_id = {"701307", "701308", "701310", "701311", | |
225 | "701312", "701313", NULL}, | |
226 | .model_name = {"DL9040", "DL9040L", "DL9140", "DL9140L", | |
227 | "DL9240", "DL9240L", NULL}, | |
228 | .analog_channels = 4, | |
229 | .digital_channels = 0, | |
230 | .pods = 0, | |
231 | ||
232 | .analog_names = &scope_analog_channel_names, | |
233 | .digital_names = NULL, | |
234 | ||
7048bb1f SA |
235 | .coupling_options = &dlm_coupling_options, |
236 | .trigger_sources = &dlm_4ch_trigger_sources, | |
7048bb1f SA |
237 | |
238 | .num_xdivs = 10, | |
239 | .num_ydivs = 8, | |
240 | }, | |
241 | { | |
242 | .model_id = {"701320", "701321", NULL}, | |
243 | .model_name = {"DL9505L", "DL9510L", NULL}, | |
244 | .analog_channels = 4, | |
245 | .digital_channels = 16, | |
246 | .pods = 4, | |
247 | ||
248 | .analog_names = &scope_analog_channel_names, | |
249 | .digital_names = &scope_digital_channel_names_32, | |
250 | ||
7048bb1f SA |
251 | .coupling_options = &dlm_coupling_options, |
252 | .trigger_sources = &dlm_4ch_trigger_sources, | |
7048bb1f SA |
253 | |
254 | .num_xdivs = 10, | |
255 | .num_ydivs = 8, | |
256 | }, | |
257 | { | |
258 | .model_id = {"701330", "701331", NULL}, | |
259 | .model_name = {"DL9705L", "DL9710L", NULL}, | |
260 | .analog_channels = 4, | |
261 | .digital_channels = 32, | |
262 | .pods = 4, | |
263 | ||
264 | .analog_names = &scope_analog_channel_names, | |
265 | .digital_names = &scope_digital_channel_names_32, | |
8ab929d6 | 266 | |
8ab929d6 SA |
267 | .coupling_options = &dlm_coupling_options, |
268 | .trigger_sources = &dlm_4ch_trigger_sources, | |
8ab929d6 SA |
269 | |
270 | .num_xdivs = 10, | |
271 | .num_ydivs = 8, | |
272 | }, | |
273 | }; | |
274 | ||
275 | /** | |
276 | * Prints out the state of the device as we currently know it. | |
277 | * | |
278 | * @param config This is the scope configuration. | |
279 | * @param state The current scope state to print. | |
280 | */ | |
329733d9 | 281 | static void scope_state_dump(const struct scope_config *config, |
8ab929d6 SA |
282 | struct scope_state *state) |
283 | { | |
284 | unsigned int i; | |
285 | char *tmp; | |
286 | ||
a9308652 | 287 | for (i = 0; i < config->analog_channels; i++) { |
f3c60fb6 SA |
288 | tmp = sr_voltage_string(dlm_vdivs[state->analog_states[i].vdiv][0], |
289 | dlm_vdivs[state->analog_states[i].vdiv][1]); | |
a9308652 | 290 | sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)", |
ac10a927 SA |
291 | i + 1, state->analog_states[i].state ? "On" : "Off", |
292 | (*config->coupling_options)[state->analog_states[i].coupling], | |
293 | tmp, state->analog_states[i].vertical_offset); | |
8ab929d6 SA |
294 | } |
295 | ||
a9308652 | 296 | for (i = 0; i < config->digital_channels; i++) { |
8ab929d6 | 297 | sr_info("State of digital channel %d -> %s", i, |
ac10a927 | 298 | state->digital_states[i] ? "On" : "Off"); |
8ab929d6 SA |
299 | } |
300 | ||
a9308652 | 301 | for (i = 0; i < config->pods; i++) { |
8ab929d6 | 302 | sr_info("State of digital POD %d -> %s", i, |
ac10a927 | 303 | state->pod_states[i] ? "On" : "Off"); |
8ab929d6 SA |
304 | } |
305 | ||
f3c60fb6 SA |
306 | tmp = sr_period_string(dlm_timebases[state->timebase][0] * |
307 | dlm_timebases[state->timebase][1]); | |
8ab929d6 SA |
308 | sr_info("Current timebase: %s", tmp); |
309 | g_free(tmp); | |
310 | ||
311 | tmp = sr_samplerate_string(state->sample_rate); | |
312 | sr_info("Current samplerate: %s", tmp); | |
313 | g_free(tmp); | |
314 | ||
af3487ec | 315 | sr_info("Current samples per acquisition (i.e. frame): %d", |
ac10a927 | 316 | state->samples_per_frame); |
af3487ec | 317 | |
8ab929d6 | 318 | sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)", |
ac10a927 | 319 | (*config->trigger_sources)[state->trigger_source], |
f3c60fb6 | 320 | dlm_trigger_slopes[state->trigger_slope], |
ac10a927 | 321 | state->horiz_triggerpos); |
8ab929d6 SA |
322 | } |
323 | ||
324 | /** | |
325 | * Searches through an array of strings and returns the index to the | |
326 | * array where a given string is located. | |
327 | * | |
328 | * @param value The string to search for. | |
329 | * @param array The array of strings. | |
330 | * @param result The index at which value is located in array. -1 on error. | |
331 | * | |
332 | * @return SR_ERR when value couldn't be found, SR_OK otherwise. | |
333 | */ | |
334 | static int array_option_get(char *value, const char *(*array)[], | |
335 | int *result) | |
336 | { | |
337 | unsigned int i; | |
338 | ||
339 | *result = -1; | |
340 | ||
a9308652 | 341 | for (i = 0; (*array)[i]; i++) |
8ab929d6 SA |
342 | if (!g_strcmp0(value, (*array)[i])) { |
343 | *result = i; | |
344 | break; | |
345 | } | |
346 | ||
347 | if (*result == -1) | |
348 | return SR_ERR; | |
349 | ||
350 | return SR_OK; | |
351 | } | |
352 | ||
353 | /** | |
354 | * This function takes a value of the form "2.000E-03", converts it to a | |
355 | * significand / factor pair and returns the index of an array where | |
356 | * a matching pair was found. | |
357 | * | |
358 | * It's a bit convoluted because of floating-point issues. The value "10.00E-09" | |
359 | * is parsed by g_ascii_strtod() as 0.000000009999999939, for example. | |
360 | * Therefore it's easier to break the number up into two strings and handle | |
361 | * them separately. | |
362 | * | |
363 | * @param value The string to be parsed. | |
364 | * @param array The array of s/f pairs. | |
365 | * @param array_len The number of pairs in the array. | |
366 | * @param result The index at which a matching pair was found. | |
367 | * | |
368 | * @return SR_ERR on any parsing error, SR_OK otherwise. | |
369 | */ | |
370 | static int array_float_get(gchar *value, const uint64_t array[][2], | |
371 | int array_len, int *result) | |
372 | { | |
373 | int i; | |
374 | uint64_t f; | |
375 | float s; | |
ac10a927 | 376 | unsigned int s_int; |
8ab929d6 SA |
377 | gchar ss[10], es[10]; |
378 | ||
379 | memset(ss, 0, sizeof(ss)); | |
380 | memset(es, 0, sizeof(es)); | |
381 | ||
382 | strncpy(ss, value, 5); | |
383 | strncpy(es, &(value[6]), 3); | |
384 | ||
385 | if (sr_atof_ascii(ss, &s) != SR_OK) | |
386 | return SR_ERR; | |
387 | if (sr_atoi(es, &i) != SR_OK) | |
388 | return SR_ERR; | |
389 | ||
390 | /* Transform e.g. 10^-03 to 1000 as the array stores the inverse. */ | |
391 | f = pow(10, abs(i)); | |
392 | ||
a9308652 UH |
393 | /* |
394 | * Adjust the significand/factor pair to make sure | |
8ab929d6 SA |
395 | * that f is a multiple of 1000. |
396 | */ | |
397 | while ((int)fmod(log10(f), 3) > 0) { s *= 10; f *= 10; } | |
398 | ||
399 | /* Truncate s to circumvent rounding errors. */ | |
ac10a927 | 400 | s_int = (unsigned int)s; |
8ab929d6 SA |
401 | |
402 | for (i = 0; i < array_len; i++) { | |
ac10a927 | 403 | if ( (s_int == array[i][0]) && (f == array[i][1]) ) { |
8ab929d6 SA |
404 | *result = i; |
405 | return SR_OK; | |
406 | } | |
407 | } | |
408 | ||
409 | return SR_ERR; | |
410 | } | |
411 | ||
412 | /** | |
413 | * Obtains information about all analog channels from the oscilloscope. | |
414 | * The internal state information is updated accordingly. | |
415 | * | |
c65a021c | 416 | * @param sdi The device instance. |
8ab929d6 SA |
417 | * @param config The device's device configuration. |
418 | * @param state The device's state information. | |
419 | * | |
420 | * @return SR_ERR on error, SR_OK otherwise. | |
421 | */ | |
c65a021c | 422 | static int analog_channel_state_get(const struct sr_dev_inst *sdi, |
329733d9 | 423 | const struct scope_config *config, |
ac10a927 | 424 | struct scope_state *state) |
8ab929d6 | 425 | { |
c65a021c | 426 | struct sr_scpi_dev_inst *scpi; |
8ab929d6 | 427 | int i, j; |
c65a021c SA |
428 | GSList *l; |
429 | struct sr_channel *ch; | |
8ab929d6 SA |
430 | gchar *response; |
431 | ||
c65a021c SA |
432 | scpi = sdi->conn; |
433 | ||
a9308652 | 434 | for (i = 0; i < config->analog_channels; i++) { |
8ab929d6 SA |
435 | |
436 | if (dlm_analog_chan_state_get(scpi, i + 1, | |
ac10a927 | 437 | &state->analog_states[i].state) != SR_OK) |
8ab929d6 SA |
438 | return SR_ERR; |
439 | ||
c65a021c SA |
440 | for (l = sdi->channels; l; l = l->next) { |
441 | ch = l->data; | |
442 | if (ch->index == i) { | |
443 | ch->enabled = state->analog_states[i].state; | |
444 | break; | |
445 | } | |
446 | } | |
447 | ||
8ab929d6 SA |
448 | if (dlm_analog_chan_vdiv_get(scpi, i + 1, &response) != SR_OK) |
449 | return SR_ERR; | |
450 | ||
f3c60fb6 | 451 | if (array_float_get(response, dlm_vdivs, ARRAY_SIZE(dlm_vdivs), |
ac10a927 | 452 | &j) != SR_OK) { |
8ab929d6 SA |
453 | g_free(response); |
454 | return SR_ERR; | |
455 | } | |
456 | ||
457 | g_free(response); | |
458 | state->analog_states[i].vdiv = j; | |
459 | ||
460 | if (dlm_analog_chan_voffs_get(scpi, i + 1, | |
ac10a927 | 461 | &state->analog_states[i].vertical_offset) != SR_OK) |
8ab929d6 SA |
462 | return SR_ERR; |
463 | ||
464 | if (dlm_analog_chan_wrange_get(scpi, i + 1, | |
ac10a927 | 465 | &state->analog_states[i].waveform_range) != SR_OK) |
8ab929d6 SA |
466 | return SR_ERR; |
467 | ||
468 | if (dlm_analog_chan_woffs_get(scpi, i + 1, | |
ac10a927 | 469 | &state->analog_states[i].waveform_offset) != SR_OK) |
8ab929d6 SA |
470 | return SR_ERR; |
471 | ||
472 | if (dlm_analog_chan_coupl_get(scpi, i + 1, &response) != SR_OK) { | |
473 | g_free(response); | |
474 | return SR_ERR; | |
475 | } | |
476 | ||
477 | if (array_option_get(response, config->coupling_options, | |
ac10a927 | 478 | &state->analog_states[i].coupling) != SR_OK) { |
8ab929d6 SA |
479 | g_free(response); |
480 | return SR_ERR; | |
481 | } | |
482 | g_free(response); | |
483 | } | |
484 | ||
485 | return SR_OK; | |
486 | } | |
487 | ||
488 | /** | |
489 | * Obtains information about all digital channels from the oscilloscope. | |
490 | * The internal state information is updated accordingly. | |
491 | * | |
c65a021c | 492 | * @param sdi The device instance. |
8ab929d6 SA |
493 | * @param config The device's device configuration. |
494 | * @param state The device's state information. | |
495 | * | |
496 | * @return SR_ERR on error, SR_OK otherwise. | |
497 | */ | |
c65a021c | 498 | static int digital_channel_state_get(const struct sr_dev_inst *sdi, |
329733d9 | 499 | const struct scope_config *config, |
ac10a927 | 500 | struct scope_state *state) |
8ab929d6 | 501 | { |
c65a021c SA |
502 | struct sr_scpi_dev_inst *scpi; |
503 | int i; | |
504 | GSList *l; | |
505 | struct sr_channel *ch; | |
506 | ||
507 | scpi = sdi->conn; | |
8ab929d6 | 508 | |
a9308652 UH |
509 | if (!config->digital_channels) { |
510 | sr_warn("Tried obtaining digital channel states on a " \ | |
511 | "model without digital inputs."); | |
512 | return SR_OK; | |
513 | } | |
8ab929d6 | 514 | |
a9308652 | 515 | for (i = 0; i < config->digital_channels; i++) { |
8ab929d6 SA |
516 | if (dlm_digital_chan_state_get(scpi, i + 1, |
517 | &state->digital_states[i]) != SR_OK) { | |
518 | return SR_ERR; | |
519 | } | |
c65a021c SA |
520 | |
521 | for (l = sdi->channels; l; l = l->next) { | |
522 | ch = l->data; | |
523 | if (ch->index == i + DLM_DIG_CHAN_INDEX_OFFS) { | |
524 | ch->enabled = state->digital_states[i]; | |
525 | break; | |
526 | } | |
527 | } | |
8ab929d6 SA |
528 | } |
529 | ||
a9308652 | 530 | if (!config->pods) { |
8ab929d6 SA |
531 | sr_warn("Tried obtaining pod states on a model without pods."); |
532 | return SR_OK; | |
533 | } | |
534 | ||
a9308652 | 535 | for (i = 0; i < config->pods; i++) { |
8ab929d6 SA |
536 | if (dlm_digital_pod_state_get(scpi, i + 'A', |
537 | &state->pod_states[i]) != SR_OK) | |
538 | return SR_ERR; | |
539 | } | |
540 | ||
541 | return SR_OK; | |
542 | } | |
543 | ||
c65a021c SA |
544 | SR_PRIV int dlm_channel_state_set(const struct sr_dev_inst *sdi, |
545 | const int ch_index, gboolean ch_state) | |
546 | { | |
547 | GSList *l; | |
548 | struct sr_channel *ch; | |
549 | struct dev_context *devc = NULL; | |
550 | struct scope_state *state; | |
551 | const struct scope_config *model = NULL; | |
552 | struct sr_scpi_dev_inst *scpi; | |
553 | gboolean chan_found; | |
554 | gboolean *pod_enabled; | |
555 | int i, result; | |
556 | ||
557 | result = SR_OK; | |
558 | ||
559 | scpi = sdi->conn; | |
560 | devc = sdi->priv; | |
561 | state = devc->model_state; | |
562 | model = devc->model_config; | |
563 | chan_found = FALSE; | |
564 | ||
565 | pod_enabled = g_malloc0(sizeof(gboolean) * model->pods); | |
566 | ||
567 | for (l = sdi->channels; l; l = l->next) { | |
568 | ch = l->data; | |
569 | ||
570 | switch (ch->type) { | |
571 | case SR_CHANNEL_ANALOG: | |
572 | if (ch->index == ch_index) { | |
573 | if (dlm_analog_chan_state_set(scpi, ch->index + 1, ch_state) != SR_OK) { | |
574 | result = SR_ERR; | |
575 | break; | |
576 | } | |
577 | ||
578 | ch->enabled = ch_state; | |
579 | state->analog_states[ch->index].state = ch_state; | |
580 | chan_found = TRUE; | |
581 | break; | |
582 | } | |
583 | break; | |
584 | case SR_CHANNEL_LOGIC: | |
585 | i = ch->index - DLM_DIG_CHAN_INDEX_OFFS; | |
586 | ||
587 | if (ch->index == ch_index) { | |
588 | if (dlm_digital_chan_state_set(scpi, i + 1, ch_state) != SR_OK) { | |
589 | result = SR_ERR; | |
590 | break; | |
591 | } | |
592 | ||
a9308652 UH |
593 | ch->enabled = ch_state; |
594 | state->digital_states[i] = ch_state; | |
595 | chan_found = TRUE; | |
c65a021c | 596 | |
a9308652 UH |
597 | /* The corresponding pod has to be enabled also. */ |
598 | pod_enabled[i / 8] |= ch->enabled; | |
599 | } else { | |
c65a021c SA |
600 | /* Also check all other channels. Maybe we can disable a pod. */ |
601 | pod_enabled[i / 8] |= ch->enabled; | |
a9308652 | 602 | } |
c65a021c SA |
603 | break; |
604 | default: | |
605 | result = SR_ERR_NA; | |
606 | } | |
607 | } | |
608 | ||
a9308652 | 609 | for (i = 0; i < model->pods; i++) { |
c65a021c SA |
610 | if (state->pod_states[i] == pod_enabled[i]) |
611 | continue; | |
612 | ||
613 | if (dlm_digital_pod_state_set(scpi, i + 1, pod_enabled[i]) != SR_OK) { | |
614 | result = SR_ERR; | |
615 | break; | |
616 | } | |
617 | ||
618 | state->pod_states[i] = pod_enabled[i]; | |
619 | } | |
620 | ||
621 | g_free(pod_enabled); | |
622 | ||
623 | if ((result == SR_OK) && !chan_found) | |
624 | result = SR_ERR_BUG; | |
625 | ||
626 | return result; | |
627 | } | |
628 | ||
8ab929d6 SA |
629 | /** |
630 | * Obtains information about the sample rate from the oscilloscope. | |
631 | * The internal state information is updated accordingly. | |
632 | * | |
633 | * @param sdi The device instance. | |
634 | * | |
635 | * @return SR_ERR on error, SR_OK otherwise. | |
636 | */ | |
637 | SR_PRIV int dlm_sample_rate_query(const struct sr_dev_inst *sdi) | |
638 | { | |
639 | struct dev_context *devc; | |
640 | struct scope_state *state; | |
641 | float tmp_float; | |
642 | ||
643 | devc = sdi->priv; | |
644 | state = devc->model_state; | |
645 | ||
a9308652 UH |
646 | /* |
647 | * No need to find an active channel to query the sample rate: | |
8ab929d6 SA |
648 | * querying any channel will do, so we use channel 1 all the time. |
649 | */ | |
650 | if (dlm_analog_chan_srate_get(sdi->conn, 1, &tmp_float) != SR_OK) | |
651 | return SR_ERR; | |
652 | ||
653 | state->sample_rate = tmp_float; | |
654 | ||
655 | return SR_OK; | |
656 | } | |
657 | ||
658 | /** | |
659 | * Obtains information about the current device state from the oscilloscope, | |
660 | * including all analog and digital channel configurations. | |
661 | * The internal state information is updated accordingly. | |
662 | * | |
663 | * @param sdi The device instance. | |
664 | * | |
665 | * @return SR_ERR on error, SR_OK otherwise. | |
666 | */ | |
667 | SR_PRIV int dlm_scope_state_query(struct sr_dev_inst *sdi) | |
668 | { | |
669 | struct dev_context *devc; | |
670 | struct scope_state *state; | |
329733d9 | 671 | const struct scope_config *config; |
8ab929d6 SA |
672 | float tmp_float; |
673 | gchar *response; | |
674 | int i; | |
675 | ||
676 | devc = sdi->priv; | |
677 | config = devc->model_config; | |
678 | state = devc->model_state; | |
679 | ||
c65a021c | 680 | if (analog_channel_state_get(sdi, config, state) != SR_OK) |
8ab929d6 SA |
681 | return SR_ERR; |
682 | ||
c65a021c | 683 | if (digital_channel_state_get(sdi, config, state) != SR_OK) |
8ab929d6 SA |
684 | return SR_ERR; |
685 | ||
686 | if (dlm_timebase_get(sdi->conn, &response) != SR_OK) | |
687 | return SR_ERR; | |
688 | ||
f3c60fb6 SA |
689 | if (array_float_get(response, dlm_timebases, |
690 | ARRAY_SIZE(dlm_timebases), &i) != SR_OK) { | |
8ab929d6 SA |
691 | g_free(response); |
692 | return SR_ERR; | |
693 | } | |
694 | ||
695 | g_free(response); | |
696 | state->timebase = i; | |
697 | ||
698 | if (dlm_horiz_trigger_pos_get(sdi->conn, &tmp_float) != SR_OK) | |
699 | return SR_ERR; | |
700 | ||
701 | /* TODO: Check if the calculation makes sense for the DLM. */ | |
702 | state->horiz_triggerpos = tmp_float / | |
f3c60fb6 SA |
703 | (((double)dlm_timebases[state->timebase][0] / |
704 | dlm_timebases[state->timebase][1]) * config->num_xdivs); | |
8ab929d6 SA |
705 | state->horiz_triggerpos -= 0.5; |
706 | state->horiz_triggerpos *= -1; | |
707 | ||
708 | if (dlm_trigger_source_get(sdi->conn, &response) != SR_OK) { | |
709 | g_free(response); | |
710 | return SR_ERR; | |
711 | } | |
712 | ||
713 | if (array_option_get(response, config->trigger_sources, | |
ac10a927 | 714 | &state->trigger_source) != SR_OK) { |
8ab929d6 SA |
715 | g_free(response); |
716 | return SR_ERR; | |
717 | } | |
718 | ||
719 | g_free(response); | |
720 | ||
721 | if (dlm_trigger_slope_get(sdi->conn, &i) != SR_OK) | |
722 | return SR_ERR; | |
723 | ||
724 | state->trigger_slope = i; | |
725 | ||
af3487ec SA |
726 | if (dlm_acq_length_get(sdi->conn, &state->samples_per_frame) != SR_OK) { |
727 | sr_err("Failed to query acquisition length."); | |
728 | return SR_ERR; | |
729 | } | |
730 | ||
8ab929d6 SA |
731 | dlm_sample_rate_query(sdi); |
732 | ||
733 | scope_state_dump(config, state); | |
734 | ||
735 | return SR_OK; | |
736 | } | |
737 | ||
738 | /** | |
739 | * Creates a new device state structure. | |
740 | * | |
741 | * @param config The device configuration to use. | |
742 | * | |
ac10a927 | 743 | * @return The newly allocated scope_state struct. |
8ab929d6 | 744 | */ |
329733d9 | 745 | static struct scope_state *dlm_scope_state_new(const struct scope_config *config) |
8ab929d6 SA |
746 | { |
747 | struct scope_state *state; | |
748 | ||
ac10a927 | 749 | state = g_malloc0(sizeof(struct scope_state)); |
8ab929d6 SA |
750 | |
751 | state->analog_states = g_malloc0(config->analog_channels * | |
ac10a927 | 752 | sizeof(struct analog_channel_state)); |
8ab929d6 SA |
753 | |
754 | state->digital_states = g_malloc0(config->digital_channels * | |
ac10a927 | 755 | sizeof(gboolean)); |
8ab929d6 SA |
756 | |
757 | state->pod_states = g_malloc0(config->pods * sizeof(gboolean)); | |
758 | ||
759 | return state; | |
760 | } | |
761 | ||
762 | /** | |
763 | * Frees the memory that was allocated by a call to dlm_scope_state_new(). | |
764 | * | |
765 | * @param state The device state structure whose memory is to be freed. | |
766 | */ | |
767 | SR_PRIV void dlm_scope_state_destroy(struct scope_state *state) | |
768 | { | |
769 | g_free(state->analog_states); | |
770 | g_free(state->digital_states); | |
771 | g_free(state->pod_states); | |
772 | g_free(state); | |
773 | } | |
774 | ||
775 | SR_PRIV int dlm_model_get(char *model_id, char **model_name, int *model_index) | |
776 | { | |
777 | unsigned int i, j; | |
778 | ||
779 | *model_index = -1; | |
780 | *model_name = NULL; | |
781 | ||
782 | for (i = 0; i < ARRAY_SIZE(scope_models); i++) { | |
783 | for (j = 0; scope_models[i].model_id[j]; j++) { | |
784 | if (!strcmp(model_id, scope_models[i].model_id[j])) { | |
785 | *model_index = i; | |
786 | *model_name = (char *)scope_models[i].model_name[j]; | |
787 | break; | |
788 | } | |
789 | } | |
790 | if (*model_index != -1) | |
791 | break; | |
792 | } | |
793 | ||
794 | if (*model_index == -1) { | |
795 | sr_err("Found unsupported DLM device with model identifier %s.", | |
ac10a927 | 796 | model_id); |
8ab929d6 SA |
797 | return SR_ERR_NA; |
798 | } | |
799 | ||
800 | return SR_OK; | |
801 | } | |
802 | ||
803 | /** | |
804 | * Attempts to initialize a DL/DLM device and prepares internal structures | |
805 | * if a suitable device was found. | |
806 | * | |
807 | * @param sdi The device instance. | |
808 | */ | |
809 | SR_PRIV int dlm_device_init(struct sr_dev_inst *sdi, int model_index) | |
810 | { | |
811 | char tmp[25]; | |
812 | int i; | |
813 | struct sr_channel *ch; | |
814 | struct dev_context *devc; | |
815 | ||
816 | devc = sdi->priv; | |
817 | ||
818 | devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) * | |
ac10a927 | 819 | scope_models[model_index].analog_channels); |
8ab929d6 SA |
820 | |
821 | devc->digital_groups = g_malloc0(sizeof(struct sr_channel_group*) * | |
f77afcf0 | 822 | scope_models[model_index].pods); |
8ab929d6 | 823 | |
6fd78a9f | 824 | /* Add analog channels, each in its own group. */ |
8ab929d6 | 825 | for (i = 0; i < scope_models[model_index].analog_channels; i++) { |
5e23fcab | 826 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, |
c368e6f3 | 827 | (*scope_models[model_index].analog_names)[i]); |
8ab929d6 SA |
828 | |
829 | devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); | |
830 | ||
831 | devc->analog_groups[i]->name = g_strdup( | |
ac10a927 | 832 | (char *)(*scope_models[model_index].analog_names)[i]); |
8ab929d6 SA |
833 | devc->analog_groups[i]->channels = g_slist_append(NULL, ch); |
834 | ||
835 | sdi->channel_groups = g_slist_append(sdi->channel_groups, | |
ac10a927 | 836 | devc->analog_groups[i]); |
8ab929d6 SA |
837 | } |
838 | ||
839 | /* Add digital channel groups. */ | |
a9308652 | 840 | for (i = 0; i < scope_models[model_index].pods; i++) { |
8ab929d6 SA |
841 | g_snprintf(tmp, sizeof(tmp), "POD%d", i); |
842 | ||
843 | devc->digital_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); | |
844 | if (!devc->digital_groups[i]) | |
845 | return SR_ERR_MALLOC; | |
846 | ||
847 | devc->digital_groups[i]->name = g_strdup(tmp); | |
848 | sdi->channel_groups = g_slist_append(sdi->channel_groups, | |
849 | devc->digital_groups[i]); | |
850 | } | |
851 | ||
852 | /* Add digital channels. */ | |
853 | for (i = 0; i < scope_models[model_index].digital_channels; i++) { | |
6fd78a9f SA |
854 | ch = sr_channel_new(sdi, DLM_DIG_CHAN_INDEX_OFFS + i, |
855 | SR_CHANNEL_LOGIC, TRUE, | |
c368e6f3 | 856 | (*scope_models[model_index].digital_names)[i]); |
8ab929d6 SA |
857 | |
858 | devc->digital_groups[i / 8]->channels = g_slist_append( | |
ac10a927 | 859 | devc->digital_groups[i / 8]->channels, ch); |
8ab929d6 SA |
860 | } |
861 | devc->model_config = &scope_models[model_index]; | |
862 | devc->frame_limit = 0; | |
863 | ||
864 | if (!(devc->model_state = dlm_scope_state_new(devc->model_config))) | |
865 | return SR_ERR_MALLOC; | |
866 | ||
867 | /* Disable non-standard response behavior. */ | |
868 | if (dlm_response_headers_set(sdi->conn, FALSE) != SR_OK) | |
869 | return SR_ERR; | |
870 | ||
871 | return SR_OK; | |
872 | } | |
873 | ||
af3487ec | 874 | SR_PRIV int dlm_channel_data_request(const struct sr_dev_inst *sdi) |
8ab929d6 | 875 | { |
af3487ec SA |
876 | struct dev_context *devc; |
877 | struct sr_channel *ch; | |
878 | int result; | |
8ab929d6 | 879 | |
af3487ec SA |
880 | devc = sdi->priv; |
881 | ch = devc->current_channel->data; | |
8ab929d6 | 882 | |
af3487ec SA |
883 | switch (ch->type) { |
884 | case SR_CHANNEL_ANALOG: | |
885 | result = dlm_analog_data_get(sdi->conn, ch->index + 1); | |
886 | break; | |
887 | case SR_CHANNEL_LOGIC: | |
888 | result = dlm_digital_data_get(sdi->conn); | |
889 | break; | |
890 | default: | |
891 | sr_err("Invalid channel type encountered (%d).", | |
892 | ch->type); | |
893 | result = SR_ERR; | |
8ab929d6 SA |
894 | } |
895 | ||
af3487ec SA |
896 | if (result == SR_OK) |
897 | devc->data_pending = TRUE; | |
898 | else | |
899 | devc->data_pending = FALSE; | |
900 | ||
901 | return result; | |
8ab929d6 SA |
902 | } |
903 | ||
904 | /** | |
905 | * Reads and removes the block data header from a given data input. | |
906 | * Format is #ndddd... with n being the number of decimal digits d. | |
907 | * The string dddd... contains the decimal-encoded length of the data. | |
908 | * Example: #9000000013 would yield a length of 13 bytes. | |
909 | * | |
910 | * @param data The input data. | |
911 | * @param len The determined input data length. | |
912 | */ | |
913 | static int dlm_block_data_header_process(GArray *data, int *len) | |
914 | { | |
915 | int i, n; | |
916 | gchar s[20]; | |
917 | ||
918 | if (g_array_index(data, gchar, 0) != '#') | |
919 | return SR_ERR; | |
920 | ||
921 | n = (uint8_t)(g_array_index(data, gchar, 1) - '0'); | |
922 | ||
923 | for (i = 0; i < n; i++) | |
924 | s[i] = g_array_index(data, gchar, 2 + i); | |
925 | s[i] = 0; | |
926 | ||
927 | if (sr_atoi(s, len) != SR_OK) | |
928 | return SR_ERR; | |
929 | ||
930 | g_array_remove_range(data, 0, 2 + n); | |
931 | ||
932 | return SR_OK; | |
933 | } | |
934 | ||
935 | /** | |
936 | * Turns raw sample data into voltages and sends them off to the session bus. | |
937 | * | |
938 | * @param data The raw sample data. | |
8ab929d6 SA |
939 | * @ch_state Pointer to the state of the channel whose data we're processing. |
940 | * @sdi The device instance. | |
941 | * | |
942 | * @return SR_ERR when data is trucated, SR_OK otherwise. | |
943 | */ | |
af3487ec | 944 | static int dlm_analog_samples_send(GArray *data, |
ac10a927 SA |
945 | struct analog_channel_state *ch_state, |
946 | struct sr_dev_inst *sdi) | |
8ab929d6 | 947 | { |
af3487ec | 948 | uint32_t i, samples; |
8ab929d6 SA |
949 | float voltage, range, offset; |
950 | GArray *float_data; | |
951 | struct dev_context *devc; | |
af3487ec | 952 | struct scope_state *model_state; |
8ab929d6 SA |
953 | struct sr_channel *ch; |
954 | struct sr_datafeed_analog analog; | |
955 | struct sr_datafeed_packet packet; | |
956 | ||
af3487ec SA |
957 | devc = sdi->priv; |
958 | model_state = devc->model_state; | |
959 | samples = model_state->samples_per_frame; | |
960 | ch = devc->current_channel->data; | |
961 | ||
8ab929d6 SA |
962 | if (data->len < samples * sizeof(uint8_t)) { |
963 | sr_err("Truncated waveform data packet received."); | |
964 | return SR_ERR; | |
965 | } | |
966 | ||
a9308652 | 967 | range = ch_state->waveform_range; |
8ab929d6 SA |
968 | offset = ch_state->waveform_offset; |
969 | ||
a9308652 UH |
970 | /* |
971 | * Convert byte sample to voltage according to | |
8ab929d6 SA |
972 | * page 269 of the Communication Interface User's Manual. |
973 | */ | |
974 | float_data = g_array_new(FALSE, FALSE, sizeof(float)); | |
975 | for (i = 0; i < samples; i++) { | |
976 | voltage = (float)g_array_index(data, int8_t, i); | |
977 | voltage = (range * voltage / | |
ac10a927 | 978 | DLM_DIVISION_FOR_BYTE_FORMAT) + offset; |
8ab929d6 SA |
979 | g_array_append_val(float_data, voltage); |
980 | } | |
981 | ||
982 | analog.channels = g_slist_append(NULL, ch); | |
983 | analog.num_samples = float_data->len; | |
984 | analog.data = (float*)float_data->data; | |
985 | analog.mq = SR_MQ_VOLTAGE; | |
986 | analog.unit = SR_UNIT_VOLT; | |
987 | analog.mqflags = 0; | |
988 | packet.type = SR_DF_ANALOG; | |
989 | packet.payload = &analog; | |
990 | sr_session_send(sdi, &packet); | |
991 | g_slist_free(analog.channels); | |
992 | ||
993 | g_array_free(float_data, TRUE); | |
994 | g_array_remove_range(data, 0, samples * sizeof(uint8_t)); | |
995 | ||
996 | return SR_OK; | |
997 | } | |
998 | ||
999 | /** | |
1000 | * Sends logic sample data off to the session bus. | |
1001 | * | |
1002 | * @param data The raw sample data. | |
8ab929d6 SA |
1003 | * @ch_state Pointer to the state of the channel whose data we're processing. |
1004 | * @sdi The device instance. | |
1005 | * | |
1006 | * @return SR_ERR when data is trucated, SR_OK otherwise. | |
1007 | */ | |
af3487ec | 1008 | static int dlm_digital_samples_send(GArray *data, |
ac10a927 | 1009 | struct sr_dev_inst *sdi) |
8ab929d6 | 1010 | { |
af3487ec SA |
1011 | struct dev_context *devc; |
1012 | struct scope_state *model_state; | |
1013 | uint32_t samples; | |
8ab929d6 SA |
1014 | struct sr_datafeed_logic logic; |
1015 | struct sr_datafeed_packet packet; | |
1016 | ||
af3487ec SA |
1017 | devc = sdi->priv; |
1018 | model_state = devc->model_state; | |
1019 | samples = model_state->samples_per_frame; | |
1020 | ||
8ab929d6 SA |
1021 | if (data->len < samples * sizeof(uint8_t)) { |
1022 | sr_err("Truncated waveform data packet received."); | |
1023 | return SR_ERR; | |
1024 | } | |
1025 | ||
1026 | logic.length = samples; | |
1027 | logic.unitsize = 1; | |
1028 | logic.data = data->data; | |
1029 | packet.type = SR_DF_LOGIC; | |
1030 | packet.payload = &logic; | |
1031 | sr_session_send(sdi, &packet); | |
1032 | ||
1033 | g_array_remove_range(data, 0, samples * sizeof(uint8_t)); | |
1034 | ||
1035 | return SR_OK; | |
1036 | } | |
1037 | ||
1038 | /** | |
1039 | * Attempts to query sample data from the oscilloscope in order to send it | |
1040 | * to the session bus for further processing. | |
1041 | * | |
1042 | * @param fd The file descriptor used as the event source. | |
1043 | * @param revents The received events. | |
1044 | * @param cb_data Callback data, in this case our device instance. | |
1045 | * | |
1046 | * @return TRUE in case of success or a recoverable error, | |
a9308652 | 1047 | * FALSE when a fatal error was encountered. |
8ab929d6 SA |
1048 | */ |
1049 | SR_PRIV int dlm_data_receive(int fd, int revents, void *cb_data) | |
1050 | { | |
8ab929d6 SA |
1051 | struct sr_dev_inst *sdi; |
1052 | struct scope_state *model_state; | |
1053 | struct dev_context *devc; | |
af3487ec | 1054 | struct sr_channel *ch; |
8ab929d6 | 1055 | struct sr_datafeed_packet packet; |
af3487ec SA |
1056 | int chunk_len, num_bytes; |
1057 | static GArray *data = NULL; | |
8ab929d6 SA |
1058 | |
1059 | (void)fd; | |
1060 | (void)revents; | |
1061 | ||
1062 | if (!(sdi = cb_data)) | |
1063 | return FALSE; | |
1064 | ||
1065 | if (!(devc = sdi->priv)) | |
1066 | return FALSE; | |
1067 | ||
1068 | if (!(model_state = (struct scope_state*)devc->model_state)) | |
1069 | return FALSE; | |
1070 | ||
af3487ec SA |
1071 | /* Are we waiting for a response from the device? */ |
1072 | if (!devc->data_pending) | |
8ab929d6 | 1073 | return TRUE; |
af3487ec SA |
1074 | |
1075 | /* Check if a new query response is coming our way. */ | |
1076 | if (!data) { | |
1077 | if (sr_scpi_read_begin(sdi->conn) == SR_OK) | |
1078 | /* The 16 here accounts for the header and EOL. */ | |
1079 | data = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), | |
ac10a927 | 1080 | 16 + model_state->samples_per_frame); |
af3487ec SA |
1081 | else |
1082 | return TRUE; | |
8ab929d6 SA |
1083 | } |
1084 | ||
af3487ec SA |
1085 | /* Store incoming data. */ |
1086 | chunk_len = sr_scpi_read_data(sdi->conn, devc->receive_buffer, | |
ac10a927 | 1087 | RECEIVE_BUFFER_SIZE); |
af3487ec SA |
1088 | if (chunk_len < 0) { |
1089 | sr_err("Error while reading data: %d", chunk_len); | |
1090 | goto fail; | |
1091 | } | |
1092 | g_array_append_vals(data, devc->receive_buffer, chunk_len); | |
8ab929d6 | 1093 | |
af3487ec SA |
1094 | /* Read the entire query response before processing. */ |
1095 | if (!sr_scpi_read_complete(sdi->conn)) | |
1096 | return TRUE; | |
8ab929d6 | 1097 | |
af3487ec SA |
1098 | /* We finished reading and are no longer waiting for data. */ |
1099 | devc->data_pending = FALSE; | |
8ab929d6 | 1100 | |
af3487ec SA |
1101 | /* Signal the beginning of a new frame if this is the first channel. */ |
1102 | if (devc->current_channel == devc->enabled_channels) { | |
1103 | packet.type = SR_DF_FRAME_BEGIN; | |
1104 | sr_session_send(sdi, &packet); | |
1105 | } | |
8ab929d6 | 1106 | |
af3487ec SA |
1107 | if (dlm_block_data_header_process(data, &num_bytes) != SR_OK) { |
1108 | sr_err("Encountered malformed block data header."); | |
1109 | goto fail; | |
1110 | } | |
8ab929d6 | 1111 | |
af3487ec SA |
1112 | if (num_bytes == 0) { |
1113 | sr_warn("Zero-length waveform data packet received. " \ | |
ac10a927 SA |
1114 | "Live mode not supported yet, stopping " \ |
1115 | "acquisition and retrying."); | |
af3487ec SA |
1116 | /* Don't care about return value here. */ |
1117 | dlm_acquisition_stop(sdi->conn); | |
1118 | g_array_free(data, TRUE); | |
0028d5a1 | 1119 | dlm_channel_data_request(sdi); |
af3487ec SA |
1120 | return TRUE; |
1121 | } | |
8ab929d6 | 1122 | |
af3487ec SA |
1123 | ch = devc->current_channel->data; |
1124 | switch (ch->type) { | |
1125 | case SR_CHANNEL_ANALOG: | |
1126 | if (dlm_analog_samples_send(data, | |
1127 | &model_state->analog_states[ch->index], | |
1128 | sdi) != SR_OK) | |
8ab929d6 | 1129 | goto fail; |
af3487ec SA |
1130 | break; |
1131 | case SR_CHANNEL_LOGIC: | |
1132 | if (dlm_digital_samples_send(data, sdi) != SR_OK) | |
1133 | goto fail; | |
1134 | break; | |
1135 | default: | |
1136 | sr_err("Invalid channel type encountered."); | |
1137 | break; | |
1138 | } | |
8ab929d6 | 1139 | |
af3487ec SA |
1140 | g_array_free(data, TRUE); |
1141 | data = NULL; | |
8ab929d6 | 1142 | |
a9308652 UH |
1143 | /* |
1144 | * Signal the end of this frame if this was the last enabled channel | |
af3487ec SA |
1145 | * and set the next enabled channel. Then, request its data. |
1146 | */ | |
1147 | if (!devc->current_channel->next) { | |
1148 | packet.type = SR_DF_FRAME_END; | |
1149 | sr_session_send(sdi, &packet); | |
1150 | devc->current_channel = devc->enabled_channels; | |
1151 | ||
a9308652 UH |
1152 | /* |
1153 | * As of now we only support importing the current acquisition | |
af3487ec SA |
1154 | * data so we're going to stop at this point. |
1155 | */ | |
1156 | sdi->driver->dev_acquisition_stop(sdi, cb_data); | |
1157 | return TRUE; | |
1158 | } else | |
1159 | devc->current_channel = devc->current_channel->next; | |
8ab929d6 | 1160 | |
af3487ec | 1161 | if (dlm_channel_data_request(sdi) != SR_OK) { |
f3f19d11 | 1162 | sr_err("Failed to request acquisition data."); |
af3487ec | 1163 | goto fail; |
8ab929d6 SA |
1164 | } |
1165 | ||
8ab929d6 SA |
1166 | return TRUE; |
1167 | ||
1168 | fail: | |
af3487ec | 1169 | if (data) { |
8ab929d6 | 1170 | g_array_free(data, TRUE); |
af3487ec SA |
1171 | data = NULL; |
1172 | } | |
8ab929d6 | 1173 | |
af3487ec | 1174 | return FALSE; |
8ab929d6 | 1175 | } |