]>
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 _WIN32 | |
22 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
23 | #define NOGDI | |
24 | #define NORESOURCE | |
25 | #endif | |
26 | #include <boost/thread/locks.hpp> | |
27 | #include <boost/thread/shared_mutex.hpp> | |
28 | ||
29 | #include <cassert> | |
30 | #include <mutex> | |
31 | #include <stdexcept> | |
32 | ||
33 | #include <sys/stat.h> | |
34 | ||
35 | #include "session.hpp" | |
36 | #include "devicemanager.hpp" | |
37 | ||
38 | #include "data/analog.hpp" | |
39 | #include "data/analogsegment.hpp" | |
40 | #include "data/decoderstack.hpp" | |
41 | #include "data/logic.hpp" | |
42 | #include "data/logicsegment.hpp" | |
43 | #include "data/signalbase.hpp" | |
44 | #include "data/decode/decoder.hpp" | |
45 | ||
46 | #include "devices/hardwaredevice.hpp" | |
47 | #include "devices/sessionfile.hpp" | |
48 | ||
49 | #include "toolbars/mainbar.hpp" | |
50 | ||
51 | #include "view/analogsignal.hpp" | |
52 | #include "view/decodetrace.hpp" | |
53 | #include "view/logicsignal.hpp" | |
54 | #include "view/signal.hpp" | |
55 | #include "view/view.hpp" | |
56 | ||
57 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
58 | ||
59 | #ifdef ENABLE_DECODE | |
60 | #include <libsigrokdecode/libsigrokdecode.h> | |
61 | #endif | |
62 | ||
63 | using boost::shared_lock; | |
64 | using boost::shared_mutex; | |
65 | using boost::unique_lock; | |
66 | ||
67 | using std::dynamic_pointer_cast; | |
68 | using std::function; | |
69 | using std::lock_guard; | |
70 | using std::list; | |
71 | using std::map; | |
72 | using std::mutex; | |
73 | using std::recursive_mutex; | |
74 | using std::set; | |
75 | using std::shared_ptr; | |
76 | using std::string; | |
77 | using std::unordered_set; | |
78 | using std::vector; | |
79 | ||
80 | using sigrok::Analog; | |
81 | using sigrok::Channel; | |
82 | using sigrok::ChannelType; | |
83 | using sigrok::ConfigKey; | |
84 | using sigrok::DatafeedCallbackFunction; | |
85 | using sigrok::Error; | |
86 | using sigrok::Header; | |
87 | using sigrok::Logic; | |
88 | using sigrok::Meta; | |
89 | using sigrok::Packet; | |
90 | using sigrok::PacketPayload; | |
91 | using sigrok::Session; | |
92 | using sigrok::SessionDevice; | |
93 | ||
94 | using Glib::VariantBase; | |
95 | using Glib::Variant; | |
96 | ||
97 | namespace pv { | |
98 | Session::Session(DeviceManager &device_manager, QString name) : | |
99 | device_manager_(device_manager), | |
100 | name_(name), | |
101 | capture_state_(Stopped), | |
102 | cur_samplerate_(0) | |
103 | { | |
104 | } | |
105 | ||
106 | Session::~Session() | |
107 | { | |
108 | // Stop and join to the thread | |
109 | stop_capture(); | |
110 | } | |
111 | ||
112 | DeviceManager& Session::device_manager() | |
113 | { | |
114 | return device_manager_; | |
115 | } | |
116 | ||
117 | const DeviceManager& Session::device_manager() const | |
118 | { | |
119 | return device_manager_; | |
120 | } | |
121 | ||
122 | shared_ptr<sigrok::Session> Session::session() const | |
123 | { | |
124 | if (!device_) | |
125 | return shared_ptr<sigrok::Session>(); | |
126 | return device_->session(); | |
127 | } | |
128 | ||
129 | shared_ptr<devices::Device> Session::device() const | |
130 | { | |
131 | return device_; | |
132 | } | |
133 | ||
134 | QString Session::name() const | |
135 | { | |
136 | return name_; | |
137 | } | |
138 | ||
139 | void Session::set_name(QString name) | |
140 | { | |
141 | if (default_name_.isEmpty()) | |
142 | default_name_ = name; | |
143 | ||
144 | name_ = name; | |
145 | ||
146 | name_changed(); | |
147 | } | |
148 | ||
149 | std::shared_ptr<pv::view::View> Session::main_view() const | |
150 | { | |
151 | return main_view_; | |
152 | } | |
153 | ||
154 | void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar) | |
155 | { | |
156 | main_bar_ = main_bar; | |
157 | } | |
158 | ||
159 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
160 | { | |
161 | return main_bar_; | |
162 | } | |
163 | ||
164 | void Session::save_settings(QSettings &settings) const | |
165 | { | |
166 | map<string, string> dev_info; | |
167 | list<string> key_list; | |
168 | int stacks = 0; | |
169 | ||
170 | if (device_) { | |
171 | settings.beginGroup("Device"); | |
172 | key_list.push_back("vendor"); | |
173 | key_list.push_back("model"); | |
174 | key_list.push_back("version"); | |
175 | key_list.push_back("serial_num"); | |
176 | key_list.push_back("connection_id"); | |
177 | ||
178 | dev_info = device_manager_.get_device_info(device_); | |
179 | ||
180 | for (string key : key_list) { | |
181 | if (dev_info.count(key)) | |
182 | settings.setValue(QString::fromUtf8(key.c_str()), | |
183 | QString::fromUtf8(dev_info.at(key).c_str())); | |
184 | else | |
185 | settings.remove(QString::fromUtf8(key.c_str())); | |
186 | } | |
187 | ||
188 | // Save channels and decoders | |
189 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
190 | #ifdef ENABLE_DECODE | |
191 | if (base->is_decode_signal()) { | |
192 | shared_ptr<pv::data::DecoderStack> decoder_stack = | |
193 | base->decoder_stack(); | |
194 | std::shared_ptr<data::decode::Decoder> top_decoder = | |
195 | decoder_stack->stack().front(); | |
196 | ||
197 | settings.beginGroup("decoder_stack" + QString::number(stacks++)); | |
198 | settings.setValue("id", top_decoder->decoder()->id); | |
199 | settings.setValue("name", top_decoder->decoder()->name); | |
200 | settings.endGroup(); | |
201 | } else | |
202 | #endif | |
203 | { | |
204 | settings.beginGroup(base->internal_name()); | |
205 | base->save_settings(settings); | |
206 | settings.endGroup(); | |
207 | } | |
208 | } | |
209 | ||
210 | settings.setValue("decoder_stacks", stacks); | |
211 | settings.endGroup(); | |
212 | } | |
213 | } | |
214 | ||
215 | void Session::restore_settings(QSettings &settings) | |
216 | { | |
217 | map<string, string> dev_info; | |
218 | list<string> key_list; | |
219 | shared_ptr<devices::HardwareDevice> device; | |
220 | ||
221 | // Re-select last used device if possible but only if it's not demo | |
222 | settings.beginGroup("Device"); | |
223 | key_list.push_back("vendor"); | |
224 | key_list.push_back("model"); | |
225 | key_list.push_back("version"); | |
226 | key_list.push_back("serial_num"); | |
227 | key_list.push_back("connection_id"); | |
228 | ||
229 | for (string key : key_list) { | |
230 | const QString k = QString::fromStdString(key); | |
231 | if (!settings.contains(k)) | |
232 | continue; | |
233 | ||
234 | const string value = settings.value(k).toString().toStdString(); | |
235 | if (!value.empty()) | |
236 | dev_info.insert(std::make_pair(key, value)); | |
237 | } | |
238 | ||
239 | if (dev_info.count("model") > 0) | |
240 | device = device_manager_.find_device_from_info(dev_info); | |
241 | ||
242 | if (device) { | |
243 | set_device(device); | |
244 | ||
245 | // Restore channels | |
246 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
247 | settings.beginGroup(base->internal_name()); | |
248 | base->restore_settings(settings); | |
249 | settings.endGroup(); | |
250 | } | |
251 | ||
252 | // Restore decoders | |
253 | #ifdef ENABLE_DECODE | |
254 | int stacks = settings.value("decoder_stacks").toInt(); | |
255 | ||
256 | for (int i = 0; i < stacks; i++) { | |
257 | settings.beginGroup("decoder_stack" + QString::number(i++)); | |
258 | ||
259 | QString id = settings.value("id").toString(); | |
260 | add_decoder(srd_decoder_get_by_id(id.toStdString().c_str())); | |
261 | ||
262 | settings.endGroup(); | |
263 | } | |
264 | #endif | |
265 | } | |
266 | ||
267 | settings.endGroup(); | |
268 | } | |
269 | ||
270 | void Session::set_device(shared_ptr<devices::Device> device) | |
271 | { | |
272 | assert(device); | |
273 | ||
274 | // Ensure we are not capturing before setting the device | |
275 | stop_capture(); | |
276 | ||
277 | if (device_) | |
278 | device_->close(); | |
279 | ||
280 | device_.reset(); | |
281 | ||
282 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
283 | name_ = default_name_; | |
284 | name_changed(); | |
285 | ||
286 | // Remove all stored data | |
287 | for (std::shared_ptr<pv::view::View> view : views_) { | |
288 | view->clear_signals(); | |
289 | #ifdef ENABLE_DECODE | |
290 | view->clear_decode_traces(); | |
291 | #endif | |
292 | } | |
293 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
294 | d->clear(); | |
295 | all_signal_data_.clear(); | |
296 | signalbases_.clear(); | |
297 | cur_logic_segment_.reset(); | |
298 | ||
299 | for (auto entry : cur_analog_segments_) { | |
300 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
301 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
302 | } | |
303 | ||
304 | logic_data_.reset(); | |
305 | ||
306 | signals_changed(); | |
307 | ||
308 | device_ = std::move(device); | |
309 | ||
310 | try { | |
311 | device_->open(); | |
312 | } catch (const QString &e) { | |
313 | device_.reset(); | |
314 | device_changed(); | |
315 | throw; | |
316 | } | |
317 | ||
318 | device_->session()->add_datafeed_callback([=] | |
319 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
320 | data_feed_in(device, packet); | |
321 | }); | |
322 | ||
323 | update_signals(); | |
324 | device_changed(); | |
325 | } | |
326 | ||
327 | void Session::set_default_device() | |
328 | { | |
329 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
330 | device_manager_.devices(); | |
331 | ||
332 | if (devices.empty()) | |
333 | return; | |
334 | ||
335 | // Try and find the demo device and select that by default | |
336 | const auto iter = std::find_if(devices.begin(), devices.end(), | |
337 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
338 | return d->hardware_device()->driver()->name() == | |
339 | "demo"; }); | |
340 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
341 | } | |
342 | ||
343 | Session::capture_state Session::get_capture_state() const | |
344 | { | |
345 | lock_guard<mutex> lock(sampling_mutex_); | |
346 | return capture_state_; | |
347 | } | |
348 | ||
349 | void Session::start_capture(function<void (const QString)> error_handler) | |
350 | { | |
351 | if (!device_) { | |
352 | error_handler(tr("No active device set, can't start acquisition.")); | |
353 | return; | |
354 | } | |
355 | ||
356 | stop_capture(); | |
357 | ||
358 | // Check that at least one channel is enabled | |
359 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
360 | if (sr_dev) { | |
361 | const auto channels = sr_dev->channels(); | |
362 | if (!std::any_of(channels.begin(), channels.end(), | |
363 | [](shared_ptr<Channel> channel) { | |
364 | return channel->enabled(); })) { | |
365 | error_handler(tr("No channels enabled.")); | |
366 | return; | |
367 | } | |
368 | } | |
369 | ||
370 | // Clear signal data | |
371 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
372 | d->clear(); | |
373 | ||
374 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
375 | name_ = default_name_; | |
376 | name_changed(); | |
377 | ||
378 | // Begin the session | |
379 | sampling_thread_ = std::thread( | |
380 | &Session::sample_thread_proc, this, error_handler); | |
381 | } | |
382 | ||
383 | void Session::stop_capture() | |
384 | { | |
385 | if (get_capture_state() != Stopped) | |
386 | device_->stop(); | |
387 | ||
388 | // Check that sampling stopped | |
389 | if (sampling_thread_.joinable()) | |
390 | sampling_thread_.join(); | |
391 | } | |
392 | ||
393 | void Session::register_view(std::shared_ptr<pv::view::View> view) | |
394 | { | |
395 | if (views_.empty()) { | |
396 | main_view_ = view; | |
397 | } | |
398 | ||
399 | views_.insert(view); | |
400 | } | |
401 | ||
402 | void Session::deregister_view(std::shared_ptr<pv::view::View> view) | |
403 | { | |
404 | views_.erase(view); | |
405 | ||
406 | if (views_.empty()) { | |
407 | main_view_.reset(); | |
408 | ||
409 | // Without a view there can be no main bar | |
410 | main_bar_.reset(); | |
411 | } | |
412 | } | |
413 | ||
414 | bool Session::has_view(std::shared_ptr<pv::view::View> view) | |
415 | { | |
416 | return views_.find(view) != views_.end(); | |
417 | } | |
418 | ||
419 | double Session::get_samplerate() const | |
420 | { | |
421 | double samplerate = 0.0; | |
422 | ||
423 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
424 | assert(d); | |
425 | const vector< shared_ptr<pv::data::Segment> > segments = | |
426 | d->segments(); | |
427 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
428 | samplerate = std::max(samplerate, s->samplerate()); | |
429 | } | |
430 | // If there is no sample rate given we use samples as unit | |
431 | if (samplerate == 0.0) | |
432 | samplerate = 1.0; | |
433 | ||
434 | return samplerate; | |
435 | } | |
436 | ||
437 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
438 | Session::signalbases() const | |
439 | { | |
440 | return signalbases_; | |
441 | } | |
442 | ||
443 | #ifdef ENABLE_DECODE | |
444 | bool Session::add_decoder(srd_decoder *const dec) | |
445 | { | |
446 | map<const srd_channel*, shared_ptr<data::SignalBase> > channels; | |
447 | shared_ptr<data::DecoderStack> decoder_stack; | |
448 | ||
449 | try { | |
450 | // Create the decoder | |
451 | decoder_stack = shared_ptr<data::DecoderStack>( | |
452 | new data::DecoderStack(*this, dec)); | |
453 | ||
454 | // Make a list of all the channels | |
455 | std::vector<const srd_channel*> all_channels; | |
456 | for (const GSList *i = dec->channels; i; i = i->next) | |
457 | all_channels.push_back((const srd_channel*)i->data); | |
458 | for (const GSList *i = dec->opt_channels; i; i = i->next) | |
459 | all_channels.push_back((const srd_channel*)i->data); | |
460 | ||
461 | // Auto select the initial channels | |
462 | for (const srd_channel *pdch : all_channels) | |
463 | for (shared_ptr<data::SignalBase> b : signalbases_) { | |
464 | if (b->type() == ChannelType::LOGIC) { | |
465 | if (QString::fromUtf8(pdch->name).toLower(). | |
466 | contains(b->name().toLower())) | |
467 | channels[pdch] = b; | |
468 | } | |
469 | } | |
470 | ||
471 | assert(decoder_stack); | |
472 | assert(!decoder_stack->stack().empty()); | |
473 | assert(decoder_stack->stack().front()); | |
474 | decoder_stack->stack().front()->set_channels(channels); | |
475 | ||
476 | // Create the decode signal | |
477 | shared_ptr<data::SignalBase> signalbase = | |
478 | shared_ptr<data::SignalBase>(new data::SignalBase(nullptr)); | |
479 | ||
480 | signalbase->set_decoder_stack(decoder_stack); | |
481 | signalbases_.insert(signalbase); | |
482 | ||
483 | for (std::shared_ptr<pv::view::View> view : views_) | |
484 | view->add_decode_trace(signalbase); | |
485 | } catch (std::runtime_error e) { | |
486 | return false; | |
487 | } | |
488 | ||
489 | signals_changed(); | |
490 | ||
491 | // Do an initial decode | |
492 | decoder_stack->begin_decode(); | |
493 | ||
494 | return true; | |
495 | } | |
496 | ||
497 | void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase) | |
498 | { | |
499 | for (std::shared_ptr<pv::view::View> view : views_) | |
500 | view->remove_decode_trace(signalbase); | |
501 | } | |
502 | #endif | |
503 | ||
504 | void Session::set_capture_state(capture_state state) | |
505 | { | |
506 | bool changed; | |
507 | ||
508 | { | |
509 | lock_guard<mutex> lock(sampling_mutex_); | |
510 | changed = capture_state_ != state; | |
511 | capture_state_ = state; | |
512 | } | |
513 | ||
514 | if (changed) | |
515 | capture_state_changed(state); | |
516 | } | |
517 | ||
518 | void Session::update_signals() | |
519 | { | |
520 | if (!device_) { | |
521 | signalbases_.clear(); | |
522 | logic_data_.reset(); | |
523 | for (std::shared_ptr<pv::view::View> view : views_) { | |
524 | view->clear_signals(); | |
525 | #ifdef ENABLE_DECODE | |
526 | view->clear_decode_traces(); | |
527 | #endif | |
528 | } | |
529 | return; | |
530 | } | |
531 | ||
532 | lock_guard<recursive_mutex> lock(data_mutex_); | |
533 | ||
534 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
535 | if (!sr_dev) { | |
536 | signalbases_.clear(); | |
537 | logic_data_.reset(); | |
538 | for (std::shared_ptr<pv::view::View> view : views_) { | |
539 | view->clear_signals(); | |
540 | #ifdef ENABLE_DECODE | |
541 | view->clear_decode_traces(); | |
542 | #endif | |
543 | } | |
544 | return; | |
545 | } | |
546 | ||
547 | // Detect what data types we will receive | |
548 | auto channels = sr_dev->channels(); | |
549 | unsigned int logic_channel_count = std::count_if( | |
550 | channels.begin(), channels.end(), | |
551 | [] (shared_ptr<Channel> channel) { | |
552 | return channel->type() == ChannelType::LOGIC; }); | |
553 | ||
554 | // Create data containers for the logic data segments | |
555 | { | |
556 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
557 | ||
558 | if (logic_channel_count == 0) { | |
559 | logic_data_.reset(); | |
560 | } else if (!logic_data_ || | |
561 | logic_data_->num_channels() != logic_channel_count) { | |
562 | logic_data_.reset(new data::Logic( | |
563 | logic_channel_count)); | |
564 | assert(logic_data_); | |
565 | } | |
566 | } | |
567 | ||
568 | // Make the signals list | |
569 | for (std::shared_ptr<pv::view::View> view : views_) { | |
570 | unordered_set< shared_ptr<view::Signal> > prev_sigs(view->signals()); | |
571 | view->clear_signals(); | |
572 | ||
573 | for (auto channel : sr_dev->channels()) { | |
574 | shared_ptr<data::SignalBase> signalbase; | |
575 | shared_ptr<view::Signal> signal; | |
576 | ||
577 | // Find the channel in the old signals | |
578 | const auto iter = std::find_if( | |
579 | prev_sigs.cbegin(), prev_sigs.cend(), | |
580 | [&](const shared_ptr<view::Signal> &s) { | |
581 | return s->base()->channel() == channel; | |
582 | }); | |
583 | if (iter != prev_sigs.end()) { | |
584 | // Copy the signal from the old set to the new | |
585 | signal = *iter; | |
586 | } else { | |
587 | // Find the signalbase for this channel if possible | |
588 | signalbase.reset(); | |
589 | for (const shared_ptr<data::SignalBase> b : signalbases_) | |
590 | if (b->channel() == channel) | |
591 | signalbase = b; | |
592 | ||
593 | switch(channel->type()->id()) { | |
594 | case SR_CHANNEL_LOGIC: | |
595 | if (!signalbase) { | |
596 | signalbase = shared_ptr<data::SignalBase>( | |
597 | new data::SignalBase(channel)); | |
598 | signalbases_.insert(signalbase); | |
599 | ||
600 | all_signal_data_.insert(logic_data_); | |
601 | signalbase->set_data(logic_data_); | |
602 | } | |
603 | ||
604 | signal = shared_ptr<view::Signal>( | |
605 | new view::LogicSignal(*this, | |
606 | device_, signalbase)); | |
607 | view->add_signal(signal); | |
608 | break; | |
609 | ||
610 | case SR_CHANNEL_ANALOG: | |
611 | { | |
612 | if (!signalbase) { | |
613 | signalbase = shared_ptr<data::SignalBase>( | |
614 | new data::SignalBase(channel)); | |
615 | signalbases_.insert(signalbase); | |
616 | ||
617 | shared_ptr<data::Analog> data(new data::Analog()); | |
618 | all_signal_data_.insert(data); | |
619 | signalbase->set_data(data); | |
620 | } | |
621 | ||
622 | signal = shared_ptr<view::Signal>( | |
623 | new view::AnalogSignal( | |
624 | *this, signalbase)); | |
625 | view->add_signal(signal); | |
626 | break; | |
627 | } | |
628 | ||
629 | default: | |
630 | assert(0); | |
631 | break; | |
632 | } | |
633 | } | |
634 | } | |
635 | } | |
636 | ||
637 | signals_changed(); | |
638 | } | |
639 | ||
640 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
641 | shared_ptr<sigrok::Channel> channel) const | |
642 | { | |
643 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
644 | assert(sig); | |
645 | if (sig->channel() == channel) | |
646 | return sig; | |
647 | } | |
648 | return shared_ptr<data::SignalBase>(); | |
649 | } | |
650 | ||
651 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
652 | { | |
653 | assert(error_handler); | |
654 | ||
655 | if (!device_) | |
656 | return; | |
657 | ||
658 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
659 | ||
660 | out_of_memory_ = false; | |
661 | ||
662 | try { | |
663 | device_->start(); | |
664 | } catch (Error e) { | |
665 | error_handler(e.what()); | |
666 | return; | |
667 | } | |
668 | ||
669 | set_capture_state(device_->session()->trigger() ? | |
670 | AwaitingTrigger : Running); | |
671 | ||
672 | device_->run(); | |
673 | set_capture_state(Stopped); | |
674 | ||
675 | // Confirm that SR_DF_END was received | |
676 | if (cur_logic_segment_) { | |
677 | qDebug("SR_DF_END was not received."); | |
678 | assert(0); | |
679 | } | |
680 | ||
681 | if (out_of_memory_) | |
682 | error_handler(tr("Out of memory, acquisition stopped.")); | |
683 | } | |
684 | ||
685 | void Session::feed_in_header() | |
686 | { | |
687 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
688 | } | |
689 | ||
690 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
691 | { | |
692 | for (auto entry : meta->config()) { | |
693 | switch (entry.first->id()) { | |
694 | case SR_CONF_SAMPLERATE: | |
695 | // We can't rely on the header to always contain the sample rate, | |
696 | // so in case it's supplied via a meta packet, we use it. | |
697 | if (!cur_samplerate_) | |
698 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
699 | ||
700 | /// @todo handle samplerate changes | |
701 | break; | |
702 | default: | |
703 | // Unknown metadata is not an error. | |
704 | break; | |
705 | } | |
706 | } | |
707 | ||
708 | signals_changed(); | |
709 | } | |
710 | ||
711 | void Session::feed_in_trigger() | |
712 | { | |
713 | // The channel containing most samples should be most accurate | |
714 | uint64_t sample_count = 0; | |
715 | ||
716 | { | |
717 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
718 | assert(d); | |
719 | uint64_t temp_count = 0; | |
720 | ||
721 | const vector< shared_ptr<pv::data::Segment> > segments = | |
722 | d->segments(); | |
723 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
724 | temp_count += s->get_sample_count(); | |
725 | ||
726 | if (temp_count > sample_count) | |
727 | sample_count = temp_count; | |
728 | } | |
729 | } | |
730 | ||
731 | trigger_event(sample_count / get_samplerate()); | |
732 | } | |
733 | ||
734 | void Session::feed_in_frame_begin() | |
735 | { | |
736 | if (cur_logic_segment_ || !cur_analog_segments_.empty()) | |
737 | frame_began(); | |
738 | } | |
739 | ||
740 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
741 | { | |
742 | lock_guard<recursive_mutex> lock(data_mutex_); | |
743 | ||
744 | const size_t sample_count = logic->data_length() / logic->unit_size(); | |
745 | ||
746 | if (!logic_data_) { | |
747 | // The only reason logic_data_ would not have been created is | |
748 | // if it was not possible to determine the signals when the | |
749 | // device was created. | |
750 | update_signals(); | |
751 | } | |
752 | ||
753 | if (!cur_logic_segment_) { | |
754 | // This could be the first packet after a trigger | |
755 | set_capture_state(Running); | |
756 | ||
757 | // Create a new data segment | |
758 | cur_logic_segment_ = shared_ptr<data::LogicSegment>( | |
759 | new data::LogicSegment( | |
760 | logic, cur_samplerate_, sample_count)); | |
761 | logic_data_->push_segment(cur_logic_segment_); | |
762 | ||
763 | // @todo Putting this here means that only listeners querying | |
764 | // for logic will be notified. Currently the only user of | |
765 | // frame_began is DecoderStack, but in future we need to signal | |
766 | // this after both analog and logic sweeps have begun. | |
767 | frame_began(); | |
768 | } else { | |
769 | // Append to the existing data segment | |
770 | cur_logic_segment_->append_payload(logic); | |
771 | } | |
772 | ||
773 | data_received(); | |
774 | } | |
775 | ||
776 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
777 | { | |
778 | lock_guard<recursive_mutex> lock(data_mutex_); | |
779 | ||
780 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
781 | const unsigned int channel_count = channels.size(); | |
782 | const size_t sample_count = analog->num_samples() / channel_count; | |
783 | const float *data = static_cast<const float *>(analog->data_pointer()); | |
784 | bool sweep_beginning = false; | |
785 | ||
786 | if (signalbases_.empty()) | |
787 | update_signals(); | |
788 | ||
789 | for (auto channel : channels) { | |
790 | shared_ptr<data::AnalogSegment> segment; | |
791 | ||
792 | // Try to get the segment of the channel | |
793 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
794 | iterator iter = cur_analog_segments_.find(channel); | |
795 | if (iter != cur_analog_segments_.end()) | |
796 | segment = (*iter).second; | |
797 | else { | |
798 | // If no segment was found, this means we haven't | |
799 | // created one yet. i.e. this is the first packet | |
800 | // in the sweep containing this segment. | |
801 | sweep_beginning = true; | |
802 | ||
803 | // Create a segment, keep it in the maps of channels | |
804 | segment = shared_ptr<data::AnalogSegment>( | |
805 | new data::AnalogSegment( | |
806 | cur_samplerate_, sample_count)); | |
807 | cur_analog_segments_[channel] = segment; | |
808 | ||
809 | // Find the analog data associated with the channel | |
810 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
811 | assert(base); | |
812 | ||
813 | shared_ptr<data::Analog> data(base->analog_data()); | |
814 | assert(data); | |
815 | ||
816 | // Push the segment into the analog data. | |
817 | data->push_segment(segment); | |
818 | } | |
819 | ||
820 | assert(segment); | |
821 | ||
822 | // Append the samples in the segment | |
823 | segment->append_interleaved_samples(data++, sample_count, | |
824 | channel_count); | |
825 | } | |
826 | ||
827 | if (sweep_beginning) { | |
828 | // This could be the first packet after a trigger | |
829 | set_capture_state(Running); | |
830 | } | |
831 | ||
832 | data_received(); | |
833 | } | |
834 | ||
835 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
836 | shared_ptr<Packet> packet) | |
837 | { | |
838 | (void)device; | |
839 | ||
840 | assert(device); | |
841 | assert(device == device_->device()); | |
842 | assert(packet); | |
843 | ||
844 | switch (packet->type()->id()) { | |
845 | case SR_DF_HEADER: | |
846 | feed_in_header(); | |
847 | break; | |
848 | ||
849 | case SR_DF_META: | |
850 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
851 | break; | |
852 | ||
853 | case SR_DF_TRIGGER: | |
854 | feed_in_trigger(); | |
855 | break; | |
856 | ||
857 | case SR_DF_FRAME_BEGIN: | |
858 | feed_in_frame_begin(); | |
859 | break; | |
860 | ||
861 | case SR_DF_LOGIC: | |
862 | try { | |
863 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
864 | } catch (std::bad_alloc) { | |
865 | out_of_memory_ = true; | |
866 | device_->stop(); | |
867 | } | |
868 | break; | |
869 | ||
870 | case SR_DF_ANALOG: | |
871 | try { | |
872 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
873 | } catch (std::bad_alloc) { | |
874 | out_of_memory_ = true; | |
875 | device_->stop(); | |
876 | } | |
877 | break; | |
878 | ||
879 | case SR_DF_END: | |
880 | { | |
881 | { | |
882 | lock_guard<recursive_mutex> lock(data_mutex_); | |
883 | cur_logic_segment_.reset(); | |
884 | cur_analog_segments_.clear(); | |
885 | } | |
886 | frame_ended(); | |
887 | break; | |
888 | } | |
889 | default: | |
890 | break; | |
891 | } | |
892 | } | |
893 | ||
894 | } // namespace pv |