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