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e3b83c5e SS |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2017 Sven Schnelle <svens@stackframe.org> | |
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 3 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 | #include <config.h> | |
3f2c7c94 SS |
21 | #include <math.h> |
22 | #include <stdlib.h> | |
23 | #include "scpi.h" | |
e3b83c5e SS |
24 | #include "protocol.h" |
25 | ||
3f2c7c94 SS |
26 | struct lecroy_wavedesc_2_x { |
27 | uint16_t comm_type; | |
28 | uint16_t comm_order; /* 1 - little endian */ | |
29 | uint32_t wave_descriptor_length; | |
30 | uint32_t user_text_len; | |
31 | uint32_t res_desc1; | |
32 | uint32_t trigtime_array_length; | |
33 | uint32_t ris_time1_array_length; | |
34 | uint32_t res_array1; | |
35 | uint32_t wave_array1_length; | |
36 | uint32_t wave_array2_length; | |
37 | uint32_t wave_array3_length; | |
38 | uint32_t wave_array4_length; | |
39 | char instrument_name[16]; | |
40 | uint32_t instrument_number; | |
41 | char trace_label[16]; | |
42 | uint32_t reserved; | |
43 | uint32_t wave_array_count; | |
44 | uint32_t points_per_screen; | |
45 | uint32_t first_valid_point; | |
46 | uint32_t last_valid_point; | |
47 | uint32_t first_point; | |
48 | uint32_t sparsing_factor; | |
49 | uint32_t segment_index; | |
50 | uint32_t subarray_count; | |
51 | uint32_t sweeps_per_acq; | |
52 | uint16_t points_per_pair; | |
53 | uint16_t pair_offset; | |
54 | float vertical_gain; | |
55 | float vertical_offset; | |
56 | float max_value; | |
57 | float min_value; | |
58 | uint16_t nominal_bits; | |
59 | uint16_t nom_subarray_count; | |
60 | float horiz_interval; | |
61 | double horiz_offset; | |
62 | double pixel_offset; | |
63 | char vertunit[48]; | |
64 | char horunit[48]; | |
65 | uint32_t reserved1; | |
66 | double trigger_time; | |
67 | } __attribute__((packed)); | |
68 | ||
69 | struct lecroy_wavedesc { | |
70 | char descriptor_name[16]; | |
71 | char template_name[16]; | |
72 | union { | |
73 | struct lecroy_wavedesc_2_x version_2_x; | |
74 | }; | |
75 | } __attribute__((packed)); | |
76 | ||
6d13a46c | 77 | static const char *coupling_options[] = { |
3f2c7c94 | 78 | "A1M", // AC with 1 MOhm termination |
ea257cdc | 79 | "D50", // DC with 50 Ohm termination |
3f2c7c94 SS |
80 | "D1M", // DC with 1 MOhm termination |
81 | "GND", | |
82 | "OVL", | |
83 | NULL, | |
84 | }; | |
85 | ||
86 | static const char *scope_trigger_slopes[] = { | |
87 | "POS", | |
88 | "NEG", | |
89 | NULL, | |
90 | }; | |
91 | ||
6d13a46c | 92 | static const char *trigger_sources[] = { |
3f2c7c94 SS |
93 | "C1", |
94 | "C2", | |
95 | "C3", | |
96 | "C4", | |
97 | "LINE", | |
98 | "EXT", | |
99 | NULL, | |
100 | }; | |
101 | ||
6d13a46c | 102 | static const struct sr_rational timebases[] = { |
3f2c7c94 SS |
103 | /* picoseconds */ |
104 | { 20, 1000000000000 }, | |
105 | { 50, 1000000000000 }, | |
106 | { 100, 1000000000000 }, | |
107 | { 200, 1000000000000 }, | |
108 | { 500, 1000000000000 }, | |
109 | /* nanoseconds */ | |
110 | { 1, 1000000000 }, | |
111 | { 2, 1000000000 }, | |
112 | { 5, 1000000000 }, | |
113 | { 10, 1000000000 }, | |
114 | { 20, 1000000000 }, | |
115 | { 50, 1000000000 }, | |
116 | { 100, 1000000000 }, | |
117 | { 200, 1000000000 }, | |
118 | { 500, 1000000000 }, | |
119 | /* microseconds */ | |
120 | { 1, 1000000 }, | |
121 | { 2, 1000000 }, | |
122 | { 5, 1000000 }, | |
123 | { 10, 1000000 }, | |
124 | { 20, 1000000 }, | |
125 | { 50, 1000000 }, | |
126 | { 100, 1000000 }, | |
127 | { 200, 1000000 }, | |
128 | { 500, 1000000 }, | |
129 | /* milliseconds */ | |
130 | { 1, 1000 }, | |
131 | { 2, 1000 }, | |
132 | { 5, 1000 }, | |
133 | { 10, 1000 }, | |
134 | { 20, 1000 }, | |
135 | { 50, 1000 }, | |
136 | { 100, 1000 }, | |
137 | { 200, 1000 }, | |
138 | { 500, 1000 }, | |
139 | /* seconds */ | |
140 | { 1, 1 }, | |
141 | { 2, 1 }, | |
142 | { 5, 1 }, | |
143 | { 10, 1 }, | |
144 | { 20, 1 }, | |
145 | { 50, 1 }, | |
146 | { 100, 1 }, | |
147 | { 200, 1 }, | |
148 | { 500, 1 }, | |
149 | { 1000, 1 }, | |
150 | }; | |
151 | ||
6d13a46c | 152 | static const struct sr_rational vdivs[] = { |
3f2c7c94 SS |
153 | /* millivolts */ |
154 | { 1, 1000 }, | |
155 | { 2, 1000 }, | |
156 | { 5, 1000 }, | |
157 | { 10, 1000 }, | |
158 | { 20, 1000 }, | |
159 | { 50, 1000 }, | |
160 | { 100, 1000 }, | |
161 | { 200, 1000 }, | |
162 | { 500, 1000 }, | |
163 | /* volts */ | |
164 | { 1, 1 }, | |
165 | { 2, 1 }, | |
166 | { 5, 1 }, | |
167 | { 10, 1 }, | |
168 | { 20, 1 }, | |
169 | { 50, 1 }, | |
170 | }; | |
171 | ||
172 | static const char *scope_analog_channel_names[] = { | |
173 | "CH1", | |
174 | "CH2", | |
175 | "CH3", | |
176 | "CH4", | |
177 | }; | |
178 | ||
179 | static const struct scope_config scope_models[] = { | |
180 | { | |
181 | .name = { "WP7000", "WP7100", "WP7200", "WP7300" }, | |
182 | ||
183 | .analog_channels = 4, | |
184 | .analog_names = &scope_analog_channel_names, | |
185 | ||
6d13a46c UH |
186 | .coupling_options = &coupling_options, |
187 | .trigger_sources = &trigger_sources, | |
3f2c7c94 SS |
188 | .trigger_slopes = &scope_trigger_slopes, |
189 | ||
6d13a46c UH |
190 | .timebases = timebases, |
191 | .num_timebases = ARRAY_SIZE(timebases), | |
3f2c7c94 | 192 | |
6d13a46c UH |
193 | .vdivs = vdivs, |
194 | .num_vdivs = ARRAY_SIZE(vdivs), | |
3f2c7c94 SS |
195 | |
196 | .num_xdivs = 10, | |
197 | .num_ydivs = 8, | |
198 | }, | |
199 | }; | |
200 | ||
201 | static void scope_state_dump(const struct scope_config *config, | |
202 | struct scope_state *state) | |
203 | { | |
204 | unsigned int i; | |
205 | char *tmp; | |
206 | ||
207 | for (i = 0; i < config->analog_channels; i++) { | |
208 | tmp = sr_voltage_string(config->vdivs[state->analog_channels[i].vdiv].p, | |
209 | config->vdivs[state->analog_channels[i].vdiv].q); | |
210 | sr_info("State of analog channel %d -> %s : %s (coupling) %s (vdiv) %2.2e (offset)", | |
211 | i + 1, state->analog_channels[i].state ? "On" : "Off", | |
212 | (*config->coupling_options)[state->analog_channels[i].coupling], | |
213 | tmp, state->analog_channels[i].vertical_offset); | |
214 | } | |
215 | ||
6984cfb2 SA |
216 | tmp = sr_period_string(config->timebases[state->timebase].p, |
217 | config->timebases[state->timebase].q); | |
3f2c7c94 SS |
218 | sr_info("Current timebase: %s", tmp); |
219 | g_free(tmp); | |
220 | ||
221 | tmp = sr_samplerate_string(state->sample_rate); | |
222 | sr_info("Current samplerate: %s", tmp); | |
223 | g_free(tmp); | |
224 | ||
225 | sr_info("Current trigger: %s (source), %s (slope) %.2f (offset)", | |
226 | (*config->trigger_sources)[state->trigger_source], | |
227 | (*config->trigger_slopes)[state->trigger_slope], | |
228 | state->horiz_triggerpos); | |
229 | } | |
230 | ||
231 | static int scope_state_get_array_option(const char *resp, | |
ea257cdc | 232 | const char *(*array)[], int *result) |
3f2c7c94 SS |
233 | { |
234 | unsigned int i; | |
235 | ||
236 | for (i = 0; (*array)[i]; i++) { | |
237 | if (!g_strcmp0(resp, (*array)[i])) { | |
238 | *result = i; | |
239 | return SR_OK; | |
240 | } | |
241 | } | |
242 | ||
243 | return SR_ERR; | |
244 | } | |
245 | ||
246 | /** | |
247 | * This function takes a value of the form "2.000E-03" and returns the index | |
248 | * of an array where a matching pair was found. | |
249 | * | |
250 | * @param value The string to be parsed. | |
251 | * @param array The array of s/f pairs. | |
252 | * @param array_len The number of pairs in the array. | |
253 | * @param result The index at which a matching pair was found. | |
254 | * | |
255 | * @return SR_ERR on any parsing error, SR_OK otherwise. | |
256 | */ | |
257 | static int array_float_get(gchar *value, const struct sr_rational *aval, | |
258 | int array_len, unsigned int *result) | |
259 | { | |
260 | struct sr_rational rval; | |
261 | ||
262 | if (sr_parse_rational(value, &rval) != SR_OK) | |
263 | return SR_ERR; | |
264 | ||
265 | for (int i = 0; i < array_len; i++) { | |
ea257cdc | 266 | if (sr_rational_eq(&rval, aval + i)) { |
3f2c7c94 SS |
267 | *result = i; |
268 | return SR_OK; | |
269 | } | |
270 | } | |
271 | ||
272 | return SR_ERR; | |
273 | } | |
274 | ||
275 | static int analog_channel_state_get(struct sr_scpi_dev_inst *scpi, | |
276 | const struct scope_config *config, | |
277 | struct scope_state *state) | |
278 | { | |
279 | unsigned int i, j; | |
280 | char command[MAX_COMMAND_SIZE]; | |
281 | char *tmp_str; | |
282 | ||
283 | for (i = 0; i < config->analog_channels; i++) { | |
ea257cdc | 284 | g_snprintf(command, sizeof(command), "C%d:TRACE?", i + 1); |
3f2c7c94 SS |
285 | |
286 | if (sr_scpi_get_bool(scpi, command, | |
ea257cdc | 287 | &state->analog_channels[i].state) != SR_OK) |
3f2c7c94 SS |
288 | return SR_ERR; |
289 | ||
ea257cdc | 290 | g_snprintf(command, sizeof(command), "C%d:VDIV?", i + 1); |
3f2c7c94 SS |
291 | |
292 | if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK) | |
293 | return SR_ERR; | |
294 | ||
6d13a46c | 295 | if (array_float_get(tmp_str, vdivs, ARRAY_SIZE(vdivs), &j) != SR_OK) { |
3f2c7c94 SS |
296 | g_free(tmp_str); |
297 | sr_err("Could not determine array index for vertical div scale."); | |
298 | return SR_ERR; | |
299 | } | |
300 | ||
301 | g_free(tmp_str); | |
302 | state->analog_channels[i].vdiv = j; | |
303 | ||
ea257cdc | 304 | g_snprintf(command, sizeof(command), "C%d:OFFSET?", i + 1); |
3f2c7c94 SS |
305 | |
306 | if (sr_scpi_get_float(scpi, command, &state->analog_channels[i].vertical_offset) != SR_OK) | |
307 | return SR_ERR; | |
308 | ||
ea257cdc | 309 | g_snprintf(command, sizeof(command), "C%d:COUPLING?", i + 1); |
3f2c7c94 SS |
310 | |
311 | if (sr_scpi_get_string(scpi, command, &tmp_str) != SR_OK) | |
312 | return SR_ERR; | |
313 | ||
314 | ||
315 | if (scope_state_get_array_option(tmp_str, config->coupling_options, | |
ea257cdc | 316 | &state->analog_channels[i].coupling) != SR_OK) |
3f2c7c94 SS |
317 | return SR_ERR; |
318 | ||
319 | g_free(tmp_str); | |
320 | } | |
321 | ||
322 | return SR_OK; | |
323 | } | |
324 | ||
325 | SR_PRIV int lecroy_xstream_update_sample_rate(const struct sr_dev_inst *sdi) | |
e3b83c5e | 326 | { |
e3b83c5e | 327 | struct dev_context *devc; |
3f2c7c94 SS |
328 | struct scope_state *state; |
329 | const struct scope_config *config; | |
330 | float memsize, timediv; | |
331 | ||
332 | devc = sdi->priv; | |
333 | state = devc->model_state; | |
334 | config = devc->model_config; | |
335 | ||
336 | if (sr_scpi_get_float(sdi->conn, "MEMORY_SIZE?", &memsize) != SR_OK) | |
ea257cdc | 337 | return SR_ERR; |
3f2c7c94 SS |
338 | |
339 | if (sr_scpi_get_float(sdi->conn, "TIME_DIV?", &timediv) != SR_OK) | |
340 | return SR_ERR; | |
341 | ||
ea257cdc | 342 | state->sample_rate = 1 / ((timediv * config->num_xdivs) / memsize); |
3f2c7c94 SS |
343 | |
344 | return SR_OK; | |
345 | } | |
346 | ||
347 | SR_PRIV int lecroy_xstream_state_get(struct sr_dev_inst *sdi) | |
348 | { | |
349 | struct dev_context *devc; | |
ea257cdc UH |
350 | struct scope_state *state; |
351 | const struct scope_config *config; | |
3f2c7c94 SS |
352 | unsigned int i; |
353 | char *tmp_str, *tmp_str2, *tmpp, *p, *key; | |
354 | char command[MAX_COMMAND_SIZE]; | |
355 | char *trig_source = NULL; | |
356 | ||
357 | devc = sdi->priv; | |
358 | config = devc->model_config; | |
359 | state = devc->model_state; | |
360 | ||
361 | sr_info("Fetching scope state"); | |
362 | ||
363 | if (analog_channel_state_get(sdi->conn, config, state) != SR_OK) | |
364 | return SR_ERR; | |
365 | ||
366 | if (sr_scpi_get_string(sdi->conn, "TIME_DIV?", &tmp_str) != SR_OK) | |
367 | return SR_ERR; | |
368 | ||
6d13a46c | 369 | if (array_float_get(tmp_str, timebases, ARRAY_SIZE(timebases), &i) != SR_OK) { |
3f2c7c94 SS |
370 | g_free(tmp_str); |
371 | sr_err("Could not determine array index for timbase scale."); | |
372 | return SR_ERR; | |
373 | } | |
374 | g_free(tmp_str); | |
375 | state->timebase = i; | |
376 | ||
377 | if (sr_scpi_get_string(sdi->conn, "TRIG_SELECT?", &tmp_str) != SR_OK) | |
378 | return SR_ERR; | |
379 | ||
7002e64a | 380 | key = tmpp = NULL; |
3f2c7c94 SS |
381 | tmp_str2 = tmp_str; |
382 | i = 0; | |
ea257cdc | 383 | while ((p = strtok_r(tmp_str2, ",", &tmpp))) { |
3f2c7c94 SS |
384 | tmp_str2 = NULL; |
385 | if (i == 0) { | |
386 | /* trigger type */ | |
387 | } else if (i & 1) { | |
388 | key = p; | |
389 | /* key */ | |
390 | } else if (!(i & 1)) { | |
391 | if (!strcmp(key, "SR")) | |
392 | trig_source = p; | |
393 | } | |
394 | i++; | |
395 | } | |
396 | ||
ea257cdc | 397 | if (!trig_source || scope_state_get_array_option(trig_source, config->trigger_sources, &state->trigger_source) != SR_OK) |
3f2c7c94 SS |
398 | return SR_ERR; |
399 | ||
3f2c7c94 SS |
400 | g_snprintf(command, sizeof(command), "%s:TRIG_SLOPE?", trig_source); |
401 | if (sr_scpi_get_string(sdi->conn, command, &tmp_str) != SR_OK) | |
402 | return SR_ERR; | |
403 | ||
404 | if (scope_state_get_array_option(tmp_str, | |
405 | config->trigger_slopes, &state->trigger_slope) != SR_OK) | |
406 | return SR_ERR; | |
407 | ||
408 | if (sr_scpi_get_float(sdi->conn, "TRIG_DELAY?", &state->horiz_triggerpos) != SR_OK) | |
409 | return SR_ERR; | |
410 | ||
411 | if (lecroy_xstream_update_sample_rate(sdi) != SR_OK) | |
412 | return SR_ERR; | |
413 | ||
414 | sr_info("Fetching finished."); | |
415 | ||
416 | scope_state_dump(config, state); | |
417 | ||
418 | return SR_OK; | |
419 | } | |
420 | ||
421 | static struct scope_state *scope_state_new(const struct scope_config *config) | |
422 | { | |
423 | struct scope_state *state; | |
424 | ||
425 | state = g_malloc0(sizeof(struct scope_state)); | |
426 | state->analog_channels = g_malloc0_n(config->analog_channels, | |
427 | sizeof(struct analog_channel_state)); | |
428 | return state; | |
429 | } | |
430 | ||
431 | SR_PRIV void lecroy_xstream_state_free(struct scope_state *state) | |
432 | { | |
433 | g_free(state->analog_channels); | |
434 | g_free(state); | |
435 | } | |
436 | ||
437 | SR_PRIV int lecroy_xstream_init_device(struct sr_dev_inst *sdi) | |
438 | { | |
439 | char command[MAX_COMMAND_SIZE]; | |
440 | int model_index; | |
441 | unsigned int i, j; | |
442 | struct sr_channel *ch; | |
443 | struct dev_context *devc; | |
444 | gboolean channel_enabled; | |
445 | ||
446 | devc = sdi->priv; | |
447 | model_index = -1; | |
448 | ||
449 | /* Find the exact model. */ | |
450 | for (i = 0; i < ARRAY_SIZE(scope_models); i++) { | |
451 | for (j = 0; scope_models[i].name[j]; j++) { | |
452 | if (!strcmp(sdi->model, scope_models[i].name[j])) { | |
453 | model_index = i; | |
454 | break; | |
455 | } | |
456 | } | |
457 | if (model_index != -1) | |
458 | break; | |
459 | } | |
460 | ||
461 | if (model_index == -1) { | |
ea257cdc | 462 | sr_dbg("Unsupported LeCroy device."); |
3f2c7c94 SS |
463 | return SR_ERR_NA; |
464 | } | |
465 | ||
466 | devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) * | |
ea257cdc | 467 | scope_models[model_index].analog_channels); |
3f2c7c94 SS |
468 | |
469 | /* Add analog channels. */ | |
470 | for (i = 0; i < scope_models[model_index].analog_channels; i++) { | |
ea257cdc | 471 | g_snprintf(command, sizeof(command), "C%d:TRACE?", i + 1); |
3f2c7c94 SS |
472 | |
473 | if (sr_scpi_get_bool(sdi->conn, command, &channel_enabled) != SR_OK) | |
474 | return SR_ERR; | |
475 | ||
ea257cdc | 476 | g_snprintf(command, sizeof(command), "C%d:VDIV?", i + 1); |
3f2c7c94 SS |
477 | |
478 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, channel_enabled, | |
479 | (*scope_models[model_index].analog_names)[i]); | |
480 | ||
481 | devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group)); | |
482 | ||
483 | devc->analog_groups[i]->name = g_strdup( | |
484 | (char *)(*scope_models[model_index].analog_names)[i]); | |
485 | devc->analog_groups[i]->channels = g_slist_append(NULL, ch); | |
486 | ||
487 | sdi->channel_groups = g_slist_append(sdi->channel_groups, | |
488 | devc->analog_groups[i]); | |
489 | } | |
490 | ||
491 | devc->model_config = &scope_models[model_index]; | |
492 | devc->frame_limit = 0; | |
493 | ||
494 | if (!(devc->model_state = scope_state_new(devc->model_config))) | |
495 | return SR_ERR_MALLOC; | |
496 | ||
d0b913ea SA |
497 | /* Set the desired response mode. */ |
498 | sr_scpi_send(sdi->conn, "COMM_HEADER OFF,WORD,BIN"); | |
499 | ||
3f2c7c94 SS |
500 | return SR_OK; |
501 | } | |
502 | ||
503 | static int lecroy_waveform_2_x_to_analog(GByteArray *data, | |
504 | struct lecroy_wavedesc *desc, | |
505 | struct sr_datafeed_analog *analog) | |
506 | { | |
507 | struct sr_analog_encoding *encoding = analog->encoding; | |
508 | struct sr_analog_meaning *meaning = analog->meaning; | |
509 | struct sr_analog_spec *spec = analog->spec; | |
510 | float *data_float; | |
511 | int16_t *waveform_data; | |
512 | unsigned int i, num_samples; | |
513 | ||
ea257cdc | 514 | data_float = g_malloc(desc->version_2_x.wave_array_count * sizeof(float)); |
3f2c7c94 SS |
515 | num_samples = desc->version_2_x.wave_array_count; |
516 | ||
517 | waveform_data = (int16_t *)(data->data + | |
518 | + desc->version_2_x.wave_descriptor_length | |
519 | + desc->version_2_x.user_text_len); | |
520 | ||
ea257cdc | 521 | for (i = 0; i < num_samples; i++) |
3f2c7c94 SS |
522 | data_float[i] = (float)waveform_data[i] |
523 | * desc->version_2_x.vertical_gain | |
524 | + desc->version_2_x.vertical_offset; | |
525 | ||
3f2c7c94 SS |
526 | analog->data = data_float; |
527 | analog->num_samples = num_samples; | |
528 | ||
529 | encoding->unitsize = sizeof(float); | |
530 | encoding->is_signed = TRUE; | |
531 | encoding->is_float = TRUE; | |
532 | encoding->is_bigendian = FALSE; | |
533 | encoding->scale.p = 1; | |
534 | encoding->scale.q = 1; | |
535 | encoding->offset.p = 0; | |
536 | encoding->offset.q = 1; | |
537 | ||
538 | encoding->digits = 6; | |
539 | encoding->is_digits_decimal = FALSE; | |
540 | ||
541 | if (strcmp(desc->version_2_x.vertunit, "A")) { | |
542 | meaning->mq = SR_MQ_CURRENT; | |
543 | meaning->unit = SR_UNIT_AMPERE; | |
544 | } else { | |
ea257cdc | 545 | /* Default to voltage. */ |
3f2c7c94 SS |
546 | meaning->mq = SR_MQ_VOLTAGE; |
547 | meaning->unit = SR_UNIT_VOLT; | |
548 | } | |
549 | ||
550 | meaning->mqflags = 0; | |
551 | spec->spec_digits = 3; | |
ea257cdc | 552 | |
3f2c7c94 SS |
553 | return SR_OK; |
554 | } | |
555 | ||
556 | static int lecroy_waveform_to_analog(GByteArray *data, | |
557 | struct sr_datafeed_analog *analog) | |
558 | { | |
559 | struct lecroy_wavedesc *desc; | |
560 | ||
561 | if (data->len < sizeof(struct lecroy_wavedesc)) | |
562 | return SR_ERR; | |
563 | ||
564 | desc = (struct lecroy_wavedesc *)data->data; | |
565 | ||
566 | if (!strncmp(desc->template_name, "LECROY_2_2", 16) || | |
567 | !strncmp(desc->template_name, "LECROY_2_3", 16)) { | |
568 | return lecroy_waveform_2_x_to_analog(data, desc, analog); | |
569 | } | |
570 | ||
ea257cdc UH |
571 | sr_err("Waveformat template '%.16s' not supported.", |
572 | desc->template_name); | |
573 | ||
3f2c7c94 SS |
574 | return SR_ERR; |
575 | } | |
576 | ||
577 | SR_PRIV int lecroy_xstream_receive_data(int fd, int revents, void *cb_data) | |
578 | { | |
579 | struct sr_channel *ch; | |
580 | struct sr_dev_inst *sdi; | |
581 | struct dev_context *devc; | |
582 | struct sr_datafeed_packet packet; | |
583 | GByteArray *data; | |
584 | struct sr_datafeed_analog analog; | |
585 | struct sr_analog_encoding encoding; | |
586 | struct sr_analog_meaning meaning; | |
587 | struct sr_analog_spec spec; | |
588 | char buf[8]; | |
ea257cdc | 589 | |
e3b83c5e | 590 | (void)fd; |
3f2c7c94 SS |
591 | (void)revents; |
592 | ||
593 | data = NULL; | |
e3b83c5e SS |
594 | |
595 | if (!(sdi = cb_data)) | |
596 | return TRUE; | |
597 | ||
598 | if (!(devc = sdi->priv)) | |
599 | return TRUE; | |
600 | ||
3f2c7c94 SS |
601 | ch = devc->current_channel->data; |
602 | ||
603 | /* | |
604 | * Send "frame begin" packet upon reception of data for the | |
605 | * first enabled channel. | |
606 | */ | |
607 | if (devc->current_channel == devc->enabled_channels) { | |
608 | packet.type = SR_DF_FRAME_BEGIN; | |
609 | sr_session_send(sdi, &packet); | |
610 | } | |
611 | ||
612 | if (ch->type != SR_CHANNEL_ANALOG) | |
613 | return SR_ERR; | |
ea257cdc UH |
614 | |
615 | /* Pass on the received data of the channel(s). */ | |
3f2c7c94 | 616 | if (sr_scpi_read_data(sdi->conn, buf, 4) != 4) { |
ea257cdc | 617 | sr_err("Reading header failed."); |
3f2c7c94 SS |
618 | return TRUE; |
619 | } | |
620 | ||
621 | if (sr_scpi_get_block(sdi->conn, NULL, &data) != SR_OK) { | |
622 | if (data) | |
623 | g_byte_array_free(data, TRUE); | |
624 | return TRUE; | |
625 | } | |
626 | ||
627 | analog.encoding = &encoding; | |
628 | analog.meaning = &meaning; | |
629 | analog.spec = &spec; | |
630 | ||
631 | if (lecroy_waveform_to_analog(data, &analog) != SR_OK) | |
632 | return SR_ERR; | |
633 | ||
634 | meaning.channels = g_slist_append(NULL, ch); | |
635 | packet.payload = &analog; | |
636 | packet.type = SR_DF_ANALOG; | |
637 | sr_session_send(sdi, &packet); | |
638 | ||
639 | g_byte_array_free(data, TRUE); | |
640 | data = NULL; | |
641 | ||
642 | g_slist_free(meaning.channels); | |
643 | g_free(analog.data); | |
644 | ||
3f2c7c94 SS |
645 | /* |
646 | * Advance to the next enabled channel. When data for all enabled | |
647 | * channels was received, then flush potentially queued logic data, | |
648 | * and send the "frame end" packet. | |
649 | */ | |
650 | if (devc->current_channel->next) { | |
651 | devc->current_channel = devc->current_channel->next; | |
652 | lecroy_xstream_request_data(sdi); | |
653 | return TRUE; | |
654 | } | |
655 | ||
656 | packet.type = SR_DF_FRAME_END; | |
657 | sr_session_send(sdi, &packet); | |
658 | ||
659 | /* | |
660 | * End of frame was reached. Stop acquisition after the specified | |
661 | * number of frames, or continue reception by starting over at | |
662 | * the first enabled channel. | |
663 | */ | |
664 | if (++devc->num_frames == devc->frame_limit) { | |
665 | sdi->driver->dev_acquisition_stop(sdi); | |
666 | } else { | |
667 | devc->current_channel = devc->enabled_channels; | |
668 | lecroy_xstream_request_data(sdi); | |
e3b83c5e SS |
669 | } |
670 | ||
671 | return TRUE; | |
672 | } |