]>
Commit | Line | Data |
---|---|---|
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 "devinst.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 | stop_capture(); | |
77 | ||
78 | if (_sampling_thread.joinable()) | |
79 | _sampling_thread.join(); | |
80 | ||
81 | if (_dev_inst) | |
82 | _device_manager.release_device(_dev_inst); | |
83 | ||
84 | // TODO: This should not be necessary | |
85 | _session = NULL; | |
86 | } | |
87 | ||
88 | shared_ptr<DevInst> SigSession::get_device() const | |
89 | { | |
90 | return _dev_inst; | |
91 | } | |
92 | ||
93 | void SigSession::set_device(shared_ptr<DevInst> dev_inst) | |
94 | { | |
95 | // Ensure we are not capturing before setting the device | |
96 | stop_capture(); | |
97 | ||
98 | if (_dev_inst) | |
99 | _device_manager.release_device(_dev_inst); | |
100 | if (dev_inst) | |
101 | _device_manager.use_device(dev_inst, this); | |
102 | _dev_inst = dev_inst; | |
103 | update_signals(dev_inst); | |
104 | } | |
105 | ||
106 | void SigSession::release_device(shared_ptr<DevInst> dev_inst) | |
107 | { | |
108 | (void)dev_inst; | |
109 | ||
110 | assert(_capture_state == Stopped); | |
111 | _dev_inst = shared_ptr<DevInst>(); | |
112 | } | |
113 | ||
114 | void SigSession::load_file(const string &name, | |
115 | function<void (const QString)> error_handler) | |
116 | { | |
117 | stop_capture(); | |
118 | ||
119 | if (sr_session_load(name.c_str()) == SR_OK) { | |
120 | GSList *devlist = NULL; | |
121 | sr_session_dev_list(&devlist); | |
122 | ||
123 | if (!devlist || !devlist->data || | |
124 | sr_session_start() != SR_OK) { | |
125 | error_handler(tr("Failed to start session.")); | |
126 | return; | |
127 | } | |
128 | ||
129 | shared_ptr<DevInst> dev_inst( | |
130 | new DevInst((sr_dev_inst*)devlist->data)); | |
131 | g_slist_free(devlist); | |
132 | ||
133 | _decode_traces.clear(); | |
134 | update_signals(dev_inst); | |
135 | read_sample_rate(dev_inst->dev_inst()); | |
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(shared_ptr<DevInst>(new DevInst(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(function<void (const QString)> error_handler) | |
165 | { | |
166 | stop_capture(); | |
167 | ||
168 | // Check that a device instance has been selected. | |
169 | if (!_dev_inst) { | |
170 | qDebug() << "No device selected"; | |
171 | return; | |
172 | } | |
173 | ||
174 | assert(_dev_inst->dev_inst()); | |
175 | ||
176 | // Check that at least one probe is enabled | |
177 | const GSList *l; | |
178 | for (l = _dev_inst->dev_inst()->probes; l; l = l->next) { | |
179 | sr_probe *const probe = (sr_probe*)l->data; | |
180 | assert(probe); | |
181 | if (probe->enabled) | |
182 | break; | |
183 | } | |
184 | ||
185 | if (!l) { | |
186 | error_handler(tr("No probes enabled.")); | |
187 | return; | |
188 | } | |
189 | ||
190 | // Begin the session | |
191 | _sampling_thread = boost::thread( | |
192 | &SigSession::sample_thread_proc, this, _dev_inst, | |
193 | error_handler); | |
194 | } | |
195 | ||
196 | void SigSession::stop_capture() | |
197 | { | |
198 | if (get_capture_state() == Stopped) | |
199 | return; | |
200 | ||
201 | sr_session_stop(); | |
202 | ||
203 | // Check that sampling stopped | |
204 | if (_sampling_thread.joinable()) | |
205 | _sampling_thread.join(); | |
206 | } | |
207 | ||
208 | set< shared_ptr<data::SignalData> > SigSession::get_data() const | |
209 | { | |
210 | lock_guard<mutex> lock(_signals_mutex); | |
211 | set< shared_ptr<data::SignalData> > data; | |
212 | BOOST_FOREACH(const shared_ptr<view::Signal> sig, _signals) { | |
213 | assert(sig); | |
214 | data.insert(sig->data()); | |
215 | } | |
216 | ||
217 | return data; | |
218 | } | |
219 | ||
220 | vector< shared_ptr<view::Signal> > SigSession::get_signals() const | |
221 | { | |
222 | lock_guard<mutex> lock(_signals_mutex); | |
223 | return _signals; | |
224 | } | |
225 | ||
226 | #ifdef ENABLE_DECODE | |
227 | bool SigSession::add_decoder(srd_decoder *const dec) | |
228 | { | |
229 | map<const srd_probe*, shared_ptr<view::LogicSignal> > probes; | |
230 | shared_ptr<data::DecoderStack> decoder_stack; | |
231 | ||
232 | try | |
233 | { | |
234 | lock_guard<mutex> lock(_signals_mutex); | |
235 | ||
236 | // Create the decoder | |
237 | decoder_stack = shared_ptr<data::DecoderStack>( | |
238 | new data::DecoderStack(dec)); | |
239 | ||
240 | // Make a list of all the probes | |
241 | std::vector<const srd_probe*> all_probes; | |
242 | for(const GSList *i = dec->probes; i; i = i->next) | |
243 | all_probes.push_back((const srd_probe*)i->data); | |
244 | for(const GSList *i = dec->opt_probes; i; i = i->next) | |
245 | all_probes.push_back((const srd_probe*)i->data); | |
246 | ||
247 | // Auto select the initial probes | |
248 | BOOST_FOREACH(const srd_probe *probe, all_probes) | |
249 | BOOST_FOREACH(shared_ptr<view::Signal> s, _signals) | |
250 | { | |
251 | shared_ptr<view::LogicSignal> l = | |
252 | dynamic_pointer_cast<view::LogicSignal>(s); | |
253 | if (l && QString::fromUtf8(probe->name). | |
254 | toLower().contains( | |
255 | l->get_name().toLower())) | |
256 | probes[probe] = l; | |
257 | } | |
258 | ||
259 | assert(decoder_stack); | |
260 | assert(!decoder_stack->stack().empty()); | |
261 | assert(decoder_stack->stack().front()); | |
262 | decoder_stack->stack().front()->set_probes(probes); | |
263 | ||
264 | // Create the decode signal | |
265 | shared_ptr<view::DecodeTrace> d( | |
266 | new view::DecodeTrace(*this, decoder_stack, | |
267 | _decode_traces.size())); | |
268 | _decode_traces.push_back(d); | |
269 | } | |
270 | catch(std::runtime_error e) | |
271 | { | |
272 | return false; | |
273 | } | |
274 | ||
275 | signals_changed(); | |
276 | ||
277 | // Do an initial decode | |
278 | decoder_stack->begin_decode(); | |
279 | ||
280 | return true; | |
281 | } | |
282 | ||
283 | vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const | |
284 | { | |
285 | lock_guard<mutex> lock(_signals_mutex); | |
286 | return _decode_traces; | |
287 | } | |
288 | ||
289 | void SigSession::remove_decode_signal(view::DecodeTrace *signal) | |
290 | { | |
291 | for (vector< shared_ptr<view::DecodeTrace> >::iterator i = | |
292 | _decode_traces.begin(); | |
293 | i != _decode_traces.end(); | |
294 | i++) | |
295 | if ((*i).get() == signal) | |
296 | { | |
297 | _decode_traces.erase(i); | |
298 | signals_changed(); | |
299 | return; | |
300 | } | |
301 | } | |
302 | #endif | |
303 | ||
304 | void SigSession::set_capture_state(capture_state state) | |
305 | { | |
306 | lock_guard<mutex> lock(_sampling_mutex); | |
307 | const bool changed = _capture_state != state; | |
308 | _capture_state = state; | |
309 | if(changed) | |
310 | capture_state_changed(state); | |
311 | } | |
312 | ||
313 | /** | |
314 | * Attempts to autodetect the format. Failing that | |
315 | * @param filename The filename of the input file. | |
316 | * @return A pointer to the 'struct sr_input_format' that should be used, | |
317 | * or NULL if no input format was selected or auto-detected. | |
318 | */ | |
319 | sr_input_format* SigSession::determine_input_file_format( | |
320 | const string &filename) | |
321 | { | |
322 | int i; | |
323 | ||
324 | /* If there are no input formats, return NULL right away. */ | |
325 | sr_input_format *const *const inputs = sr_input_list(); | |
326 | if (!inputs) { | |
327 | g_critical("No supported input formats available."); | |
328 | return NULL; | |
329 | } | |
330 | ||
331 | /* Otherwise, try to find an input module that can handle this file. */ | |
332 | for (i = 0; inputs[i]; i++) { | |
333 | if (inputs[i]->format_match(filename.c_str())) | |
334 | break; | |
335 | } | |
336 | ||
337 | /* Return NULL if no input module wanted to touch this. */ | |
338 | if (!inputs[i]) { | |
339 | g_critical("Error: no matching input module found."); | |
340 | return NULL; | |
341 | } | |
342 | ||
343 | return inputs[i]; | |
344 | } | |
345 | ||
346 | sr_input* SigSession::load_input_file_format(const string &filename, | |
347 | function<void (const QString)> error_handler, | |
348 | sr_input_format *format) | |
349 | { | |
350 | struct stat st; | |
351 | sr_input *in; | |
352 | ||
353 | if (!format && !(format = | |
354 | determine_input_file_format(filename.c_str()))) { | |
355 | /* The exact cause was already logged. */ | |
356 | return NULL; | |
357 | } | |
358 | ||
359 | if (stat(filename.c_str(), &st) == -1) { | |
360 | error_handler(tr("Failed to load file")); | |
361 | return NULL; | |
362 | } | |
363 | ||
364 | /* Initialize the input module. */ | |
365 | if (!(in = new sr_input)) { | |
366 | qDebug("Failed to allocate input module.\n"); | |
367 | return NULL; | |
368 | } | |
369 | ||
370 | in->format = format; | |
371 | in->param = NULL; | |
372 | if (in->format->init && | |
373 | in->format->init(in, filename.c_str()) != SR_OK) { | |
374 | qDebug("Input format init failed.\n"); | |
375 | return NULL; | |
376 | } | |
377 | ||
378 | sr_session_new(); | |
379 | ||
380 | if (sr_session_dev_add(in->sdi) != SR_OK) { | |
381 | qDebug("Failed to use device.\n"); | |
382 | sr_session_destroy(); | |
383 | return NULL; | |
384 | } | |
385 | ||
386 | return in; | |
387 | } | |
388 | ||
389 | void SigSession::update_signals(shared_ptr<DevInst> dev_inst) | |
390 | { | |
391 | assert(dev_inst); | |
392 | assert(_capture_state == Stopped); | |
393 | ||
394 | unsigned int logic_probe_count = 0; | |
395 | ||
396 | // Clear the decode traces | |
397 | _decode_traces.clear(); | |
398 | ||
399 | // Detect what data types we will receive | |
400 | if(dev_inst) { | |
401 | assert(dev_inst->dev_inst()); | |
402 | for (const GSList *l = dev_inst->dev_inst()->probes; | |
403 | l; l = l->next) { | |
404 | const sr_probe *const probe = (const sr_probe *)l->data; | |
405 | if (!probe->enabled) | |
406 | continue; | |
407 | ||
408 | switch(probe->type) { | |
409 | case SR_PROBE_LOGIC: | |
410 | logic_probe_count++; | |
411 | break; | |
412 | } | |
413 | } | |
414 | } | |
415 | ||
416 | // Create data containers for the logic data snapshots | |
417 | { | |
418 | lock_guard<mutex> data_lock(_data_mutex); | |
419 | ||
420 | _logic_data.reset(); | |
421 | if (logic_probe_count != 0) { | |
422 | _logic_data.reset(new data::Logic( | |
423 | logic_probe_count)); | |
424 | assert(_logic_data); | |
425 | } | |
426 | } | |
427 | ||
428 | // Make the Signals list | |
429 | do { | |
430 | lock_guard<mutex> lock(_signals_mutex); | |
431 | ||
432 | _signals.clear(); | |
433 | ||
434 | if(!dev_inst) | |
435 | break; | |
436 | ||
437 | assert(dev_inst->dev_inst()); | |
438 | for (const GSList *l = dev_inst->dev_inst()->probes; | |
439 | l; l = l->next) { | |
440 | shared_ptr<view::Signal> signal; | |
441 | sr_probe *const probe = (sr_probe *)l->data; | |
442 | assert(probe); | |
443 | ||
444 | switch(probe->type) { | |
445 | case SR_PROBE_LOGIC: | |
446 | signal = shared_ptr<view::Signal>( | |
447 | new view::LogicSignal(dev_inst, | |
448 | probe, _logic_data)); | |
449 | break; | |
450 | ||
451 | case SR_PROBE_ANALOG: | |
452 | { | |
453 | shared_ptr<data::Analog> data( | |
454 | new data::Analog()); | |
455 | signal = shared_ptr<view::Signal>( | |
456 | new view::AnalogSignal(dev_inst, | |
457 | probe, data)); | |
458 | break; | |
459 | } | |
460 | ||
461 | default: | |
462 | assert(0); | |
463 | break; | |
464 | } | |
465 | ||
466 | assert(signal); | |
467 | _signals.push_back(signal); | |
468 | } | |
469 | ||
470 | } while(0); | |
471 | ||
472 | signals_changed(); | |
473 | } | |
474 | ||
475 | bool SigSession::is_trigger_enabled() const | |
476 | { | |
477 | assert(_dev_inst); | |
478 | assert(_dev_inst->dev_inst()); | |
479 | for (const GSList *l = _dev_inst->dev_inst()->probes; l; l = l->next) { | |
480 | const sr_probe *const p = (const sr_probe *)l->data; | |
481 | assert(p); | |
482 | if (p->trigger && p->trigger[0] != '\0') | |
483 | return true; | |
484 | } | |
485 | ||
486 | return false; | |
487 | } | |
488 | ||
489 | shared_ptr<view::Signal> SigSession::signal_from_probe( | |
490 | const sr_probe *probe) const | |
491 | { | |
492 | lock_guard<mutex> lock(_signals_mutex); | |
493 | BOOST_FOREACH(shared_ptr<view::Signal> sig, _signals) { | |
494 | assert(sig); | |
495 | if (sig->probe() == probe) | |
496 | return sig; | |
497 | } | |
498 | return shared_ptr<view::Signal>(); | |
499 | } | |
500 | ||
501 | void SigSession::read_sample_rate(const sr_dev_inst *const sdi) | |
502 | { | |
503 | GVariant *gvar; | |
504 | uint64_t sample_rate = 0; | |
505 | ||
506 | // Read out the sample rate | |
507 | if(sdi->driver) | |
508 | { | |
509 | const int ret = sr_config_get(sdi->driver, sdi, NULL, | |
510 | SR_CONF_SAMPLERATE, &gvar); | |
511 | if (ret != SR_OK) { | |
512 | qDebug("Failed to get samplerate\n"); | |
513 | return; | |
514 | } | |
515 | ||
516 | sample_rate = g_variant_get_uint64(gvar); | |
517 | g_variant_unref(gvar); | |
518 | } | |
519 | ||
520 | // Set the sample rate of all data | |
521 | const set< shared_ptr<data::SignalData> > data_set = get_data(); | |
522 | BOOST_FOREACH(shared_ptr<data::SignalData> data, data_set) { | |
523 | assert(data); | |
524 | data->set_samplerate(sample_rate); | |
525 | } | |
526 | } | |
527 | ||
528 | void SigSession::load_session_thread_proc( | |
529 | function<void (const QString)> error_handler) | |
530 | { | |
531 | (void)error_handler; | |
532 | ||
533 | sr_session_datafeed_callback_add(data_feed_in_proc, NULL); | |
534 | ||
535 | set_capture_state(Running); | |
536 | ||
537 | sr_session_run(); | |
538 | ||
539 | sr_session_destroy(); | |
540 | set_capture_state(Stopped); | |
541 | ||
542 | // Confirm that SR_DF_END was received | |
543 | assert(!_cur_logic_snapshot); | |
544 | assert(_cur_analog_snapshots.empty()); | |
545 | } | |
546 | ||
547 | void SigSession::load_input_thread_proc(const string name, | |
548 | sr_input *in, function<void (const QString)> error_handler) | |
549 | { | |
550 | (void)error_handler; | |
551 | ||
552 | assert(in); | |
553 | assert(in->format); | |
554 | ||
555 | sr_session_datafeed_callback_add(data_feed_in_proc, NULL); | |
556 | ||
557 | set_capture_state(Running); | |
558 | ||
559 | in->format->loadfile(in, name.c_str()); | |
560 | ||
561 | sr_session_destroy(); | |
562 | set_capture_state(Stopped); | |
563 | ||
564 | // Confirm that SR_DF_END was received | |
565 | assert(!_cur_logic_snapshot); | |
566 | assert(_cur_analog_snapshots.empty()); | |
567 | ||
568 | delete in; | |
569 | } | |
570 | ||
571 | void SigSession::sample_thread_proc(shared_ptr<DevInst> dev_inst, | |
572 | function<void (const QString)> error_handler) | |
573 | { | |
574 | assert(dev_inst); | |
575 | assert(dev_inst->dev_inst()); | |
576 | assert(error_handler); | |
577 | ||
578 | sr_session_new(); | |
579 | sr_session_datafeed_callback_add(data_feed_in_proc, NULL); | |
580 | ||
581 | if (sr_session_dev_add(dev_inst->dev_inst()) != SR_OK) { | |
582 | error_handler(tr("Failed to use device.")); | |
583 | sr_session_destroy(); | |
584 | return; | |
585 | } | |
586 | ||
587 | if (sr_session_start() != SR_OK) { | |
588 | error_handler(tr("Failed to start session.")); | |
589 | return; | |
590 | } | |
591 | ||
592 | set_capture_state(is_trigger_enabled() ? AwaitingTrigger : Running); | |
593 | ||
594 | sr_session_run(); | |
595 | sr_session_destroy(); | |
596 | ||
597 | set_capture_state(Stopped); | |
598 | ||
599 | // Confirm that SR_DF_END was received | |
600 | if (_cur_logic_snapshot) | |
601 | { | |
602 | qDebug("SR_DF_END was not received."); | |
603 | assert(0); | |
604 | } | |
605 | } | |
606 | ||
607 | void SigSession::feed_in_header(const sr_dev_inst *sdi) | |
608 | { | |
609 | read_sample_rate(sdi); | |
610 | } | |
611 | ||
612 | void SigSession::feed_in_meta(const sr_dev_inst *sdi, | |
613 | const sr_datafeed_meta &meta) | |
614 | { | |
615 | (void)sdi; | |
616 | ||
617 | for (const GSList *l = meta.config; l; l = l->next) { | |
618 | const sr_config *const src = (const sr_config*)l->data; | |
619 | switch (src->key) { | |
620 | case SR_CONF_SAMPLERATE: | |
621 | /// @todo handle samplerate changes | |
622 | /// samplerate = (uint64_t *)src->value; | |
623 | break; | |
624 | default: | |
625 | // Unknown metadata is not an error. | |
626 | break; | |
627 | } | |
628 | } | |
629 | ||
630 | signals_changed(); | |
631 | } | |
632 | ||
633 | void SigSession::feed_in_logic(const sr_datafeed_logic &logic) | |
634 | { | |
635 | lock_guard<mutex> lock(_data_mutex); | |
636 | ||
637 | if (!_logic_data) | |
638 | { | |
639 | qDebug() << "Unexpected logic packet"; | |
640 | return; | |
641 | } | |
642 | ||
643 | if (!_cur_logic_snapshot) | |
644 | { | |
645 | // This could be the first packet after a trigger | |
646 | set_capture_state(Running); | |
647 | ||
648 | // Create a new data snapshot | |
649 | _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>( | |
650 | new data::LogicSnapshot(logic, _dev_inst->get_sample_limit())); | |
651 | _logic_data->push_snapshot(_cur_logic_snapshot); | |
652 | } | |
653 | else | |
654 | { | |
655 | // Append to the existing data snapshot | |
656 | _cur_logic_snapshot->append_payload(logic); | |
657 | } | |
658 | ||
659 | data_updated(); | |
660 | } | |
661 | ||
662 | void SigSession::feed_in_analog(const sr_datafeed_analog &analog) | |
663 | { | |
664 | lock_guard<mutex> lock(_data_mutex); | |
665 | ||
666 | const unsigned int probe_count = g_slist_length(analog.probes); | |
667 | const size_t sample_count = analog.num_samples / probe_count; | |
668 | const float *data = analog.data; | |
669 | bool sweep_beginning = false; | |
670 | ||
671 | for (GSList *p = analog.probes; p; p = p->next) | |
672 | { | |
673 | shared_ptr<data::AnalogSnapshot> snapshot; | |
674 | ||
675 | sr_probe *const probe = (sr_probe*)p->data; | |
676 | assert(probe); | |
677 | ||
678 | // Try to get the snapshot of the probe | |
679 | const map< const sr_probe*, shared_ptr<data::AnalogSnapshot> >:: | |
680 | iterator iter = _cur_analog_snapshots.find(probe); | |
681 | if (iter != _cur_analog_snapshots.end()) | |
682 | snapshot = (*iter).second; | |
683 | else | |
684 | { | |
685 | // If no snapshot was found, this means we havn't | |
686 | // created one yet. i.e. this is the first packet | |
687 | // in the sweep containing this snapshot. | |
688 | sweep_beginning = true; | |
689 | ||
690 | // Create a snapshot, keep it in the maps of probes | |
691 | snapshot = shared_ptr<data::AnalogSnapshot>( | |
692 | new data::AnalogSnapshot(_dev_inst->get_sample_limit())); | |
693 | _cur_analog_snapshots[probe] = snapshot; | |
694 | ||
695 | // Find the annalog data associated with the probe | |
696 | shared_ptr<view::AnalogSignal> sig = | |
697 | dynamic_pointer_cast<view::AnalogSignal>( | |
698 | signal_from_probe(probe)); | |
699 | assert(sig); | |
700 | ||
701 | shared_ptr<data::Analog> data(sig->analog_data()); | |
702 | assert(data); | |
703 | ||
704 | // Push the snapshot into the analog data. | |
705 | data->push_snapshot(snapshot); | |
706 | } | |
707 | ||
708 | assert(snapshot); | |
709 | ||
710 | // Append the samples in the snapshot | |
711 | snapshot->append_interleaved_samples(data++, sample_count, | |
712 | probe_count); | |
713 | } | |
714 | ||
715 | if (sweep_beginning) { | |
716 | // This could be the first packet after a trigger | |
717 | set_capture_state(Running); | |
718 | } | |
719 | ||
720 | data_updated(); | |
721 | } | |
722 | ||
723 | void SigSession::data_feed_in(const struct sr_dev_inst *sdi, | |
724 | const struct sr_datafeed_packet *packet) | |
725 | { | |
726 | assert(sdi); | |
727 | assert(packet); | |
728 | ||
729 | switch (packet->type) { | |
730 | case SR_DF_HEADER: | |
731 | feed_in_header(sdi); | |
732 | break; | |
733 | ||
734 | case SR_DF_META: | |
735 | assert(packet->payload); | |
736 | feed_in_meta(sdi, | |
737 | *(const sr_datafeed_meta*)packet->payload); | |
738 | break; | |
739 | ||
740 | case SR_DF_LOGIC: | |
741 | assert(packet->payload); | |
742 | feed_in_logic(*(const sr_datafeed_logic*)packet->payload); | |
743 | break; | |
744 | ||
745 | case SR_DF_ANALOG: | |
746 | assert(packet->payload); | |
747 | feed_in_analog(*(const sr_datafeed_analog*)packet->payload); | |
748 | break; | |
749 | ||
750 | case SR_DF_END: | |
751 | { | |
752 | { | |
753 | lock_guard<mutex> lock(_data_mutex); | |
754 | _cur_logic_snapshot.reset(); | |
755 | _cur_analog_snapshots.clear(); | |
756 | } | |
757 | data_updated(); | |
758 | break; | |
759 | } | |
760 | } | |
761 | } | |
762 | ||
763 | void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi, | |
764 | const struct sr_datafeed_packet *packet, void *cb_data) | |
765 | { | |
766 | (void) cb_data; | |
767 | assert(_session); | |
768 | _session->data_feed_in(sdi, packet); | |
769 | } | |
770 | ||
771 | } // namespace pv |