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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk> | |
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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifdef ENABLE_DECODE | |
22 | #include <libsigrokdecode/libsigrokdecode.h> | |
23 | #endif | |
24 | ||
25 | #include "sigsession.h" | |
26 | ||
27 | #include "devicemanager.h" | |
28 | ||
29 | #include "data/analog.h" | |
30 | #include "data/analogsnapshot.h" | |
31 | #include "data/decoderstack.h" | |
32 | #include "data/logic.h" | |
33 | #include "data/logicsnapshot.h" | |
34 | #include "data/decode/decoder.h" | |
35 | ||
36 | #include "view/analogsignal.h" | |
37 | #include "view/decodetrace.h" | |
38 | #include "view/logicsignal.h" | |
39 | ||
40 | #include <assert.h> | |
41 | ||
42 | #include <stdexcept> | |
43 | ||
44 | #include <boost/foreach.hpp> | |
45 | ||
46 | #include <sys/stat.h> | |
47 | ||
48 | #include <QDebug> | |
49 | ||
50 | using boost::dynamic_pointer_cast; | |
51 | using boost::function; | |
52 | using boost::lock_guard; | |
53 | using boost::mutex; | |
54 | using boost::shared_ptr; | |
55 | using std::map; | |
56 | using std::set; | |
57 | using std::string; | |
58 | using std::vector; | |
59 | ||
60 | namespace pv { | |
61 | ||
62 | // TODO: This should not be necessary | |
63 | SigSession* SigSession::_session = NULL; | |
64 | ||
65 | SigSession::SigSession(DeviceManager &device_manager) : | |
66 | _device_manager(device_manager), | |
67 | _sdi(NULL), | |
68 | _capture_state(Stopped) | |
69 | { | |
70 | // TODO: This should not be necessary | |
71 | _session = this; | |
72 | } | |
73 | ||
74 | SigSession::~SigSession() | |
75 | { | |
76 | stop_capture(); | |
77 | ||
78 | _sampling_thread.join(); | |
79 | ||
80 | if (_sdi) | |
81 | _device_manager.release_device(_sdi); | |
82 | _sdi = NULL; | |
83 | ||
84 | // TODO: This should not be necessary | |
85 | _session = NULL; | |
86 | } | |
87 | ||
88 | struct sr_dev_inst* SigSession::get_device() const | |
89 | { | |
90 | return _sdi; | |
91 | } | |
92 | ||
93 | void SigSession::set_device(struct sr_dev_inst *sdi) | |
94 | { | |
95 | // Ensure we are not capturing before setting the device | |
96 | stop_capture(); | |
97 | ||
98 | if (_sdi) | |
99 | _device_manager.release_device(_sdi); | |
100 | if (sdi) | |
101 | _device_manager.use_device(sdi, this); | |
102 | _sdi = sdi; | |
103 | update_signals(sdi); | |
104 | } | |
105 | ||
106 | void SigSession::release_device(struct sr_dev_inst *sdi) | |
107 | { | |
108 | (void)sdi; | |
109 | ||
110 | assert(_capture_state == Stopped); | |
111 | _sdi = NULL; | |
112 | update_signals(NULL); | |
113 | } | |
114 | ||
115 | void SigSession::load_file(const string &name, | |
116 | function<void (const QString)> error_handler) | |
117 | { | |
118 | stop_capture(); | |
119 | ||
120 | if (sr_session_load(name.c_str()) == SR_OK) { | |
121 | GSList *devlist = NULL; | |
122 | sr_session_dev_list(&devlist); | |
123 | ||
124 | if (!devlist || !devlist->data || | |
125 | sr_session_start() != SR_OK) { | |
126 | error_handler(tr("Failed to start session.")); | |
127 | return; | |
128 | } | |
129 | ||
130 | sr_dev_inst *const sdi = (sr_dev_inst*)devlist->data; | |
131 | g_slist_free(devlist); | |
132 | ||
133 | _decode_traces.clear(); | |
134 | update_signals(sdi); | |
135 | read_sample_rate(sdi); | |
136 | ||
137 | _sampling_thread = boost::thread( | |
138 | &SigSession::load_session_thread_proc, this, | |
139 | error_handler); | |
140 | ||
141 | } else { | |
142 | sr_input *in = NULL; | |
143 | ||
144 | if (!(in = load_input_file_format(name.c_str(), | |
145 | error_handler))) | |
146 | return; | |
147 | ||
148 | _decode_traces.clear(); | |
149 | update_signals(in->sdi); | |
150 | read_sample_rate(in->sdi); | |
151 | ||
152 | _sampling_thread = boost::thread( | |
153 | &SigSession::load_input_thread_proc, this, | |
154 | name, in, error_handler); | |
155 | } | |
156 | } | |
157 | ||
158 | SigSession::capture_state SigSession::get_capture_state() const | |
159 | { | |
160 | lock_guard<mutex> lock(_sampling_mutex); | |
161 | return _capture_state; | |
162 | } | |
163 | ||
164 | void SigSession::start_capture(uint64_t record_length, | |
165 | function<void (const QString)> error_handler) | |
166 | { | |
167 | stop_capture(); | |
168 | ||
169 | // Check that a device instance has been selected. | |
170 | if (!_sdi) { | |
171 | qDebug() << "No device selected"; | |
172 | return; | |
173 | } | |
174 | ||
175 | // Check that at least one probe is enabled | |
176 | const GSList *l; | |
177 | for (l = _sdi->probes; l; l = l->next) { | |
178 | sr_probe *const probe = (sr_probe*)l->data; | |
179 | assert(probe); | |
180 | if (probe->enabled) | |
181 | break; | |
182 | } | |
183 | ||
184 | if (!l) { | |
185 | error_handler(tr("No probes enabled.")); | |
186 | return; | |
187 | } | |
188 | ||
189 | // Begin the session | |
190 | _sampling_thread = boost::thread( | |
191 | &SigSession::sample_thread_proc, this, _sdi, | |
192 | record_length, error_handler); | |
193 | } | |
194 | ||
195 | void SigSession::stop_capture() | |
196 | { | |
197 | if (get_capture_state() == Stopped) | |
198 | return; | |
199 | ||
200 | sr_session_stop(); | |
201 | ||
202 | // Check that sampling stopped | |
203 | _sampling_thread.join(); | |
204 | } | |
205 | ||
206 | set< shared_ptr<data::SignalData> > SigSession::get_data() const | |
207 | { | |
208 | lock_guard<mutex> lock(_signals_mutex); | |
209 | set< shared_ptr<data::SignalData> > data; | |
210 | BOOST_FOREACH(const shared_ptr<view::Signal> sig, _signals) { | |
211 | assert(sig); | |
212 | data.insert(sig->data()); | |
213 | } | |
214 | ||
215 | return data; | |
216 | } | |
217 | ||
218 | vector< shared_ptr<view::Signal> > SigSession::get_signals() const | |
219 | { | |
220 | lock_guard<mutex> lock(_signals_mutex); | |
221 | return _signals; | |
222 | } | |
223 | ||
224 | #ifdef ENABLE_DECODE | |
225 | bool SigSession::add_decoder(srd_decoder *const dec) | |
226 | { | |
227 | map<const srd_probe*, shared_ptr<view::LogicSignal> > probes; | |
228 | shared_ptr<data::DecoderStack> decoder_stack; | |
229 | ||
230 | try | |
231 | { | |
232 | lock_guard<mutex> lock(_signals_mutex); | |
233 | ||
234 | // Create the decoder | |
235 | decoder_stack = shared_ptr<data::DecoderStack>( | |
236 | new data::DecoderStack(dec)); | |
237 | ||
238 | // Auto select the initial probes | |
239 | for(const GSList *i = dec->probes; i; i = i->next) | |
240 | { | |
241 | const srd_probe *const probe = (const srd_probe*)i->data; | |
242 | BOOST_FOREACH(shared_ptr<view::Signal> s, _signals) | |
243 | { | |
244 | shared_ptr<view::LogicSignal> l = | |
245 | dynamic_pointer_cast<view::LogicSignal>(s); | |
246 | if (l && QString::fromUtf8(probe->name). | |
247 | toLower().contains( | |
248 | l->get_name().toLower())) | |
249 | probes[probe] = l; | |
250 | } | |
251 | } | |
252 | ||
253 | assert(decoder_stack); | |
254 | assert(!decoder_stack->stack().empty()); | |
255 | assert(decoder_stack->stack().front()); | |
256 | decoder_stack->stack().front()->set_probes(probes); | |
257 | ||
258 | // Create the decode signal | |
259 | shared_ptr<view::DecodeTrace> d( | |
260 | new view::DecodeTrace(*this, decoder_stack, | |
261 | _decode_traces.size())); | |
262 | _decode_traces.push_back(d); | |
263 | } | |
264 | catch(std::runtime_error e) | |
265 | { | |
266 | return false; | |
267 | } | |
268 | ||
269 | signals_changed(); | |
270 | ||
271 | // Do an initial decode | |
272 | decoder_stack->begin_decode(); | |
273 | ||
274 | return true; | |
275 | } | |
276 | ||
277 | vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const | |
278 | { | |
279 | lock_guard<mutex> lock(_signals_mutex); | |
280 | return _decode_traces; | |
281 | } | |
282 | ||
283 | void SigSession::remove_decode_signal(view::DecodeTrace *signal) | |
284 | { | |
285 | for (vector< shared_ptr<view::DecodeTrace> >::iterator i = | |
286 | _decode_traces.begin(); | |
287 | i != _decode_traces.end(); | |
288 | i++) | |
289 | if ((*i).get() == signal) | |
290 | { | |
291 | _decode_traces.erase(i); | |
292 | signals_changed(); | |
293 | return; | |
294 | } | |
295 | } | |
296 | #endif | |
297 | ||
298 | void SigSession::set_capture_state(capture_state state) | |
299 | { | |
300 | lock_guard<mutex> lock(_sampling_mutex); | |
301 | const bool changed = _capture_state != state; | |
302 | _capture_state = state; | |
303 | if(changed) | |
304 | capture_state_changed(state); | |
305 | } | |
306 | ||
307 | /** | |
308 | * Attempts to autodetect the format. Failing that | |
309 | * @param filename The filename of the input file. | |
310 | * @return A pointer to the 'struct sr_input_format' that should be used, | |
311 | * or NULL if no input format was selected or auto-detected. | |
312 | */ | |
313 | sr_input_format* SigSession::determine_input_file_format( | |
314 | const string &filename) | |
315 | { | |
316 | int i; | |
317 | ||
318 | /* If there are no input formats, return NULL right away. */ | |
319 | sr_input_format *const *const inputs = sr_input_list(); | |
320 | if (!inputs) { | |
321 | g_critical("No supported input formats available."); | |
322 | return NULL; | |
323 | } | |
324 | ||
325 | /* Otherwise, try to find an input module that can handle this file. */ | |
326 | for (i = 0; inputs[i]; i++) { | |
327 | if (inputs[i]->format_match(filename.c_str())) | |
328 | break; | |
329 | } | |
330 | ||
331 | /* Return NULL if no input module wanted to touch this. */ | |
332 | if (!inputs[i]) { | |
333 | g_critical("Error: no matching input module found."); | |
334 | return NULL; | |
335 | } | |
336 | ||
337 | return inputs[i]; | |
338 | } | |
339 | ||
340 | sr_input* SigSession::load_input_file_format(const string &filename, | |
341 | function<void (const QString)> error_handler, | |
342 | sr_input_format *format) | |
343 | { | |
344 | struct stat st; | |
345 | sr_input *in; | |
346 | ||
347 | if (!format && !(format = | |
348 | determine_input_file_format(filename.c_str()))) { | |
349 | /* The exact cause was already logged. */ | |
350 | return NULL; | |
351 | } | |
352 | ||
353 | if (stat(filename.c_str(), &st) == -1) { | |
354 | error_handler(tr("Failed to load file")); | |
355 | return NULL; | |
356 | } | |
357 | ||
358 | /* Initialize the input module. */ | |
359 | if (!(in = new sr_input)) { | |
360 | qDebug("Failed to allocate input module.\n"); | |
361 | return NULL; | |
362 | } | |
363 | ||
364 | in->format = format; | |
365 | in->param = NULL; | |
366 | if (in->format->init && | |
367 | in->format->init(in, filename.c_str()) != SR_OK) { | |
368 | qDebug("Input format init failed.\n"); | |
369 | return NULL; | |
370 | } | |
371 | ||
372 | sr_session_new(); | |
373 | ||
374 | if (sr_session_dev_add(in->sdi) != SR_OK) { | |
375 | qDebug("Failed to use device.\n"); | |
376 | sr_session_destroy(); | |
377 | return NULL; | |
378 | } | |
379 | ||
380 | return in; | |
381 | } | |
382 | ||
383 | void SigSession::update_signals(const sr_dev_inst *const sdi) | |
384 | { | |
385 | assert(_capture_state == Stopped); | |
386 | ||
387 | unsigned int logic_probe_count = 0; | |
388 | ||
389 | // Clear the decode traces | |
390 | _decode_traces.clear(); | |
391 | ||
392 | // Detect what data types we will receive | |
393 | if(sdi) { | |
394 | for (const GSList *l = sdi->probes; l; l = l->next) { | |
395 | const sr_probe *const probe = (const sr_probe *)l->data; | |
396 | if (!probe->enabled) | |
397 | continue; | |
398 | ||
399 | switch(probe->type) { | |
400 | case SR_PROBE_LOGIC: | |
401 | logic_probe_count++; | |
402 | break; | |
403 | } | |
404 | } | |
405 | } | |
406 | ||
407 | // Create data containers for the logic data snapshots | |
408 | { | |
409 | lock_guard<mutex> data_lock(_data_mutex); | |
410 | ||
411 | _logic_data.reset(); | |
412 | if (logic_probe_count != 0) { | |
413 | _logic_data.reset(new data::Logic( | |
414 | logic_probe_count)); | |
415 | assert(_logic_data); | |
416 | } | |
417 | } | |
418 | ||
419 | // Make the Signals list | |
420 | do { | |
421 | lock_guard<mutex> lock(_signals_mutex); | |
422 | ||
423 | _signals.clear(); | |
424 | ||
425 | if(!sdi) | |
426 | break; | |
427 | ||
428 | for (const GSList *l = sdi->probes; l; l = l->next) { | |
429 | shared_ptr<view::Signal> signal; | |
430 | sr_probe *const probe = (sr_probe *)l->data; | |
431 | assert(probe); | |
432 | ||
433 | switch(probe->type) { | |
434 | case SR_PROBE_LOGIC: | |
435 | signal = shared_ptr<view::Signal>( | |
436 | new view::LogicSignal(*this, probe, | |
437 | _logic_data)); | |
438 | break; | |
439 | ||
440 | case SR_PROBE_ANALOG: | |
441 | { | |
442 | shared_ptr<data::Analog> data( | |
443 | new data::Analog()); | |
444 | signal = shared_ptr<view::Signal>( | |
445 | new view::AnalogSignal(*this, probe, | |
446 | data)); | |
447 | break; | |
448 | } | |
449 | ||
450 | default: | |
451 | assert(0); | |
452 | break; | |
453 | } | |
454 | ||
455 | assert(signal); | |
456 | _signals.push_back(signal); | |
457 | } | |
458 | ||
459 | } while(0); | |
460 | ||
461 | signals_changed(); | |
462 | } | |
463 | ||
464 | bool SigSession::is_trigger_enabled() const | |
465 | { | |
466 | assert(_sdi); | |
467 | for (const GSList *l = _sdi->probes; l; l = l->next) { | |
468 | const sr_probe *const p = (const sr_probe *)l->data; | |
469 | assert(p); | |
470 | if (p->trigger && p->trigger[0] != '\0') | |
471 | return true; | |
472 | } | |
473 | ||
474 | return false; | |
475 | } | |
476 | ||
477 | shared_ptr<view::Signal> SigSession::signal_from_probe( | |
478 | const sr_probe *probe) const | |
479 | { | |
480 | lock_guard<mutex> lock(_signals_mutex); | |
481 | BOOST_FOREACH(shared_ptr<view::Signal> sig, _signals) { | |
482 | assert(sig); | |
483 | if (sig->probe() == probe) | |
484 | return sig; | |
485 | } | |
486 | return shared_ptr<view::Signal>(); | |
487 | } | |
488 | ||
489 | void SigSession::read_sample_rate(const sr_dev_inst *const sdi) | |
490 | { | |
491 | GVariant *gvar; | |
492 | uint64_t sample_rate = 0; | |
493 | ||
494 | // Read out the sample rate | |
495 | if(sdi->driver) | |
496 | { | |
497 | const int ret = sr_config_get(sdi->driver, sdi, NULL, | |
498 | SR_CONF_SAMPLERATE, &gvar); | |
499 | if (ret != SR_OK) { | |
500 | qDebug("Failed to get samplerate\n"); | |
501 | return; | |
502 | } | |
503 | ||
504 | sample_rate = g_variant_get_uint64(gvar); | |
505 | g_variant_unref(gvar); | |
506 | } | |
507 | ||
508 | // Set the sample rate of all data | |
509 | const set< shared_ptr<data::SignalData> > data_set = get_data(); | |
510 | BOOST_FOREACH(shared_ptr<data::SignalData> data, data_set) { | |
511 | assert(data); | |
512 | data->set_samplerate(sample_rate); | |
513 | } | |
514 | } | |
515 | ||
516 | void SigSession::load_session_thread_proc( | |
517 | function<void (const QString)> error_handler) | |
518 | { | |
519 | (void)error_handler; | |
520 | ||
521 | sr_session_datafeed_callback_add(data_feed_in_proc, NULL); | |
522 | ||
523 | set_capture_state(Running); | |
524 | ||
525 | sr_session_run(); | |
526 | ||
527 | sr_session_destroy(); | |
528 | set_capture_state(Stopped); | |
529 | ||
530 | // Confirm that SR_DF_END was received | |
531 | assert(!_cur_logic_snapshot); | |
532 | assert(_cur_analog_snapshots.empty()); | |
533 | } | |
534 | ||
535 | void SigSession::load_input_thread_proc(const string name, | |
536 | sr_input *in, function<void (const QString)> error_handler) | |
537 | { | |
538 | (void)error_handler; | |
539 | ||
540 | assert(in); | |
541 | assert(in->format); | |
542 | ||
543 | sr_session_datafeed_callback_add(data_feed_in_proc, NULL); | |
544 | ||
545 | set_capture_state(Running); | |
546 | ||
547 | in->format->loadfile(in, name.c_str()); | |
548 | ||
549 | sr_session_destroy(); | |
550 | set_capture_state(Stopped); | |
551 | ||
552 | // Confirm that SR_DF_END was received | |
553 | assert(!_cur_logic_snapshot); | |
554 | assert(_cur_analog_snapshots.empty()); | |
555 | ||
556 | delete in; | |
557 | } | |
558 | ||
559 | void SigSession::sample_thread_proc(struct sr_dev_inst *sdi, | |
560 | uint64_t record_length, | |
561 | function<void (const QString)> error_handler) | |
562 | { | |
563 | assert(sdi); | |
564 | assert(error_handler); | |
565 | ||
566 | sr_session_new(); | |
567 | sr_session_datafeed_callback_add(data_feed_in_proc, NULL); | |
568 | ||
569 | if (sr_session_dev_add(sdi) != SR_OK) { | |
570 | error_handler(tr("Failed to use device.")); | |
571 | sr_session_destroy(); | |
572 | return; | |
573 | } | |
574 | ||
575 | // Set the sample limit | |
576 | if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, | |
577 | g_variant_new_uint64(record_length)) != SR_OK) { | |
578 | error_handler(tr("Failed to configure " | |
579 | "time-based sample limit.")); | |
580 | sr_session_destroy(); | |
581 | return; | |
582 | } | |
583 | ||
584 | if (sr_session_start() != SR_OK) { | |
585 | error_handler(tr("Failed to start session.")); | |
586 | return; | |
587 | } | |
588 | ||
589 | set_capture_state(is_trigger_enabled() ? AwaitingTrigger : Running); | |
590 | ||
591 | sr_session_run(); | |
592 | sr_session_destroy(); | |
593 | ||
594 | set_capture_state(Stopped); | |
595 | ||
596 | // Confirm that SR_DF_END was received | |
597 | if (_cur_logic_snapshot) | |
598 | { | |
599 | qDebug("SR_DF_END was not received."); | |
600 | assert(0); | |
601 | } | |
602 | } | |
603 | ||
604 | void SigSession::feed_in_header(const sr_dev_inst *sdi) | |
605 | { | |
606 | read_sample_rate(sdi); | |
607 | } | |
608 | ||
609 | void SigSession::feed_in_meta(const sr_dev_inst *sdi, | |
610 | const sr_datafeed_meta &meta) | |
611 | { | |
612 | (void)sdi; | |
613 | ||
614 | for (const GSList *l = meta.config; l; l = l->next) { | |
615 | const sr_config *const src = (const sr_config*)l->data; | |
616 | switch (src->key) { | |
617 | case SR_CONF_SAMPLERATE: | |
618 | /// @todo handle samplerate changes | |
619 | /// samplerate = (uint64_t *)src->value; | |
620 | break; | |
621 | default: | |
622 | // Unknown metadata is not an error. | |
623 | break; | |
624 | } | |
625 | } | |
626 | ||
627 | signals_changed(); | |
628 | } | |
629 | ||
630 | void SigSession::feed_in_logic(const sr_datafeed_logic &logic) | |
631 | { | |
632 | lock_guard<mutex> lock(_data_mutex); | |
633 | ||
634 | if (!_logic_data) | |
635 | { | |
636 | qDebug() << "Unexpected logic packet"; | |
637 | return; | |
638 | } | |
639 | ||
640 | if (!_cur_logic_snapshot) | |
641 | { | |
642 | // This could be the first packet after a trigger | |
643 | set_capture_state(Running); | |
644 | ||
645 | // Create a new data snapshot | |
646 | _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>( | |
647 | new data::LogicSnapshot(logic)); | |
648 | _logic_data->push_snapshot(_cur_logic_snapshot); | |
649 | } | |
650 | else | |
651 | { | |
652 | // Append to the existing data snapshot | |
653 | _cur_logic_snapshot->append_payload(logic); | |
654 | } | |
655 | ||
656 | data_updated(); | |
657 | } | |
658 | ||
659 | void SigSession::feed_in_analog(const sr_datafeed_analog &analog) | |
660 | { | |
661 | lock_guard<mutex> lock(_data_mutex); | |
662 | ||
663 | const unsigned int probe_count = g_slist_length(analog.probes); | |
664 | const size_t sample_count = analog.num_samples / probe_count; | |
665 | const float *data = analog.data; | |
666 | bool sweep_beginning = false; | |
667 | ||
668 | for (GSList *p = analog.probes; p; p = p->next) | |
669 | { | |
670 | shared_ptr<data::AnalogSnapshot> snapshot; | |
671 | ||
672 | sr_probe *const probe = (sr_probe*)p->data; | |
673 | assert(probe); | |
674 | ||
675 | // Try to get the snapshot of the probe | |
676 | const map< const sr_probe*, shared_ptr<data::AnalogSnapshot> >:: | |
677 | iterator iter = _cur_analog_snapshots.find(probe); | |
678 | if (iter != _cur_analog_snapshots.end()) | |
679 | snapshot = (*iter).second; | |
680 | else | |
681 | { | |
682 | // If no snapshot was found, this means we havn't | |
683 | // created one yet. i.e. this is the first packet | |
684 | // in the sweep containing this snapshot. | |
685 | sweep_beginning = true; | |
686 | ||
687 | // Create a snapshot, keep it in the maps of probes | |
688 | snapshot = shared_ptr<data::AnalogSnapshot>( | |
689 | new data::AnalogSnapshot()); | |
690 | _cur_analog_snapshots[probe] = snapshot; | |
691 | ||
692 | // Find the annalog data associated with the probe | |
693 | shared_ptr<view::AnalogSignal> sig = | |
694 | dynamic_pointer_cast<view::AnalogSignal>( | |
695 | signal_from_probe(probe)); | |
696 | assert(sig); | |
697 | ||
698 | shared_ptr<data::Analog> data(sig->analog_data()); | |
699 | assert(data); | |
700 | ||
701 | // Push the snapshot into the analog data. | |
702 | data->push_snapshot(snapshot); | |
703 | } | |
704 | ||
705 | assert(snapshot); | |
706 | ||
707 | // Append the samples in the snapshot | |
708 | snapshot->append_interleaved_samples(data++, sample_count, | |
709 | probe_count); | |
710 | } | |
711 | ||
712 | if (sweep_beginning) { | |
713 | // This could be the first packet after a trigger | |
714 | set_capture_state(Running); | |
715 | } | |
716 | ||
717 | data_updated(); | |
718 | } | |
719 | ||
720 | void SigSession::data_feed_in(const struct sr_dev_inst *sdi, | |
721 | const struct sr_datafeed_packet *packet) | |
722 | { | |
723 | assert(sdi); | |
724 | assert(packet); | |
725 | ||
726 | switch (packet->type) { | |
727 | case SR_DF_HEADER: | |
728 | feed_in_header(sdi); | |
729 | break; | |
730 | ||
731 | case SR_DF_META: | |
732 | assert(packet->payload); | |
733 | feed_in_meta(sdi, | |
734 | *(const sr_datafeed_meta*)packet->payload); | |
735 | break; | |
736 | ||
737 | case SR_DF_LOGIC: | |
738 | assert(packet->payload); | |
739 | feed_in_logic(*(const sr_datafeed_logic*)packet->payload); | |
740 | break; | |
741 | ||
742 | case SR_DF_ANALOG: | |
743 | assert(packet->payload); | |
744 | feed_in_analog(*(const sr_datafeed_analog*)packet->payload); | |
745 | break; | |
746 | ||
747 | case SR_DF_END: | |
748 | { | |
749 | { | |
750 | lock_guard<mutex> lock(_data_mutex); | |
751 | _cur_logic_snapshot.reset(); | |
752 | _cur_analog_snapshots.clear(); | |
753 | } | |
754 | data_updated(); | |
755 | break; | |
756 | } | |
757 | } | |
758 | } | |
759 | ||
760 | void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi, | |
761 | const struct sr_datafeed_packet *packet, void *cb_data) | |
762 | { | |
763 | (void) cb_data; | |
764 | assert(_session); | |
765 | _session->data_feed_in(sdi, packet); | |
766 | } | |
767 | ||
768 | } // namespace pv |