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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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifdef _WIN32 | |
21 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
22 | #define NOGDI | |
23 | #define NORESOURCE | |
24 | #endif | |
25 | #include <boost/thread/locks.hpp> | |
26 | #include <boost/thread/shared_mutex.hpp> | |
27 | ||
28 | #include <QFileInfo> | |
29 | ||
30 | #include <cassert> | |
31 | #include <mutex> | |
32 | #include <stdexcept> | |
33 | ||
34 | #include <sys/stat.h> | |
35 | ||
36 | #include "session.hpp" | |
37 | #include "devicemanager.hpp" | |
38 | ||
39 | #include "data/analog.hpp" | |
40 | #include "data/analogsegment.hpp" | |
41 | #include "data/decoderstack.hpp" | |
42 | #include "data/logic.hpp" | |
43 | #include "data/logicsegment.hpp" | |
44 | #include "data/signalbase.hpp" | |
45 | #include "data/decode/decoder.hpp" | |
46 | ||
47 | #include "devices/hardwaredevice.hpp" | |
48 | #include "devices/inputfile.hpp" | |
49 | #include "devices/sessionfile.hpp" | |
50 | ||
51 | #include "toolbars/mainbar.hpp" | |
52 | ||
53 | #include "view/analogsignal.hpp" | |
54 | #include "view/decodetrace.hpp" | |
55 | #include "view/logicsignal.hpp" | |
56 | #include "view/signal.hpp" | |
57 | #include "view/view.hpp" | |
58 | ||
59 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
60 | ||
61 | #ifdef ENABLE_DECODE | |
62 | #include <libsigrokdecode/libsigrokdecode.h> | |
63 | #endif | |
64 | ||
65 | using boost::shared_lock; | |
66 | using boost::shared_mutex; | |
67 | using boost::unique_lock; | |
68 | ||
69 | using std::bad_alloc; | |
70 | using std::dynamic_pointer_cast; | |
71 | using std::find_if; | |
72 | using std::function; | |
73 | using std::lock_guard; | |
74 | using std::list; | |
75 | using std::make_pair; | |
76 | using std::make_shared; | |
77 | using std::map; | |
78 | using std::max; | |
79 | using std::move; | |
80 | using std::mutex; | |
81 | using std::pair; | |
82 | using std::recursive_mutex; | |
83 | using std::runtime_error; | |
84 | using std::set; | |
85 | using std::shared_ptr; | |
86 | using std::string; | |
87 | using std::unordered_set; | |
88 | using std::vector; | |
89 | ||
90 | using sigrok::Analog; | |
91 | using sigrok::Channel; | |
92 | using sigrok::ChannelType; | |
93 | using sigrok::ConfigKey; | |
94 | using sigrok::DatafeedCallbackFunction; | |
95 | using sigrok::Error; | |
96 | using sigrok::Header; | |
97 | using sigrok::InputFormat; | |
98 | using sigrok::Logic; | |
99 | using sigrok::Meta; | |
100 | using sigrok::OutputFormat; | |
101 | using sigrok::Packet; | |
102 | using sigrok::PacketPayload; | |
103 | using sigrok::Session; | |
104 | using sigrok::SessionDevice; | |
105 | ||
106 | using Glib::VariantBase; | |
107 | using Glib::Variant; | |
108 | ||
109 | namespace pv { | |
110 | Session::Session(DeviceManager &device_manager, QString name) : | |
111 | device_manager_(device_manager), | |
112 | default_name_(name), | |
113 | name_(name), | |
114 | capture_state_(Stopped), | |
115 | cur_samplerate_(0), | |
116 | data_saved_(true) | |
117 | { | |
118 | } | |
119 | ||
120 | Session::~Session() | |
121 | { | |
122 | // Stop and join to the thread | |
123 | stop_capture(); | |
124 | } | |
125 | ||
126 | DeviceManager& Session::device_manager() | |
127 | { | |
128 | return device_manager_; | |
129 | } | |
130 | ||
131 | const DeviceManager& Session::device_manager() const | |
132 | { | |
133 | return device_manager_; | |
134 | } | |
135 | ||
136 | shared_ptr<sigrok::Session> Session::session() const | |
137 | { | |
138 | if (!device_) | |
139 | return shared_ptr<sigrok::Session>(); | |
140 | return device_->session(); | |
141 | } | |
142 | ||
143 | shared_ptr<devices::Device> Session::device() const | |
144 | { | |
145 | return device_; | |
146 | } | |
147 | ||
148 | QString Session::name() const | |
149 | { | |
150 | return name_; | |
151 | } | |
152 | ||
153 | void Session::set_name(QString name) | |
154 | { | |
155 | if (default_name_.isEmpty()) | |
156 | default_name_ = name; | |
157 | ||
158 | name_ = name; | |
159 | ||
160 | name_changed(); | |
161 | } | |
162 | ||
163 | const list< shared_ptr<views::ViewBase> > Session::views() const | |
164 | { | |
165 | return views_; | |
166 | } | |
167 | ||
168 | shared_ptr<views::ViewBase> Session::main_view() const | |
169 | { | |
170 | return main_view_; | |
171 | } | |
172 | ||
173 | void Session::set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar) | |
174 | { | |
175 | main_bar_ = main_bar; | |
176 | } | |
177 | ||
178 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
179 | { | |
180 | return main_bar_; | |
181 | } | |
182 | ||
183 | bool Session::data_saved() const | |
184 | { | |
185 | return data_saved_; | |
186 | } | |
187 | ||
188 | void Session::save_settings(QSettings &settings) const | |
189 | { | |
190 | map<string, string> dev_info; | |
191 | list<string> key_list; | |
192 | int stacks = 0, views = 0; | |
193 | ||
194 | if (device_) { | |
195 | shared_ptr<devices::HardwareDevice> hw_device = | |
196 | dynamic_pointer_cast< devices::HardwareDevice >(device_); | |
197 | ||
198 | if (hw_device) { | |
199 | settings.setValue("device_type", "hardware"); | |
200 | settings.beginGroup("device"); | |
201 | ||
202 | key_list.emplace_back("vendor"); | |
203 | key_list.emplace_back("model"); | |
204 | key_list.emplace_back("version"); | |
205 | key_list.emplace_back("serial_num"); | |
206 | key_list.emplace_back("connection_id"); | |
207 | ||
208 | dev_info = device_manager_.get_device_info(device_); | |
209 | ||
210 | for (string key : key_list) { | |
211 | if (dev_info.count(key)) | |
212 | settings.setValue(QString::fromUtf8(key.c_str()), | |
213 | QString::fromUtf8(dev_info.at(key).c_str())); | |
214 | else | |
215 | settings.remove(QString::fromUtf8(key.c_str())); | |
216 | } | |
217 | ||
218 | settings.endGroup(); | |
219 | } | |
220 | ||
221 | shared_ptr<devices::SessionFile> sessionfile_device = | |
222 | dynamic_pointer_cast< devices::SessionFile >(device_); | |
223 | ||
224 | if (sessionfile_device) { | |
225 | settings.setValue("device_type", "sessionfile"); | |
226 | settings.beginGroup("device"); | |
227 | settings.setValue("filename", QString::fromStdString( | |
228 | sessionfile_device->full_name())); | |
229 | settings.endGroup(); | |
230 | } | |
231 | ||
232 | // Save channels and decoders | |
233 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
234 | #ifdef ENABLE_DECODE | |
235 | if (base->is_decode_signal()) { | |
236 | shared_ptr<pv::data::DecoderStack> decoder_stack = | |
237 | base->decoder_stack(); | |
238 | shared_ptr<data::decode::Decoder> top_decoder = | |
239 | decoder_stack->stack().front(); | |
240 | ||
241 | settings.beginGroup("decoder_stack" + QString::number(stacks++)); | |
242 | settings.setValue("id", top_decoder->decoder()->id); | |
243 | settings.setValue("name", top_decoder->decoder()->name); | |
244 | settings.endGroup(); | |
245 | } else | |
246 | #endif | |
247 | { | |
248 | settings.beginGroup(base->internal_name()); | |
249 | base->save_settings(settings); | |
250 | settings.endGroup(); | |
251 | } | |
252 | } | |
253 | ||
254 | settings.setValue("decoder_stacks", stacks); | |
255 | ||
256 | // Save view states and their signal settings | |
257 | // Note: main_view must be saved as view0 | |
258 | settings.beginGroup("view" + QString::number(views++)); | |
259 | main_view_->save_settings(settings); | |
260 | settings.endGroup(); | |
261 | ||
262 | for (shared_ptr<views::ViewBase> view : views_) { | |
263 | if (view != main_view_) { | |
264 | settings.beginGroup("view" + QString::number(views++)); | |
265 | view->save_settings(settings); | |
266 | settings.endGroup(); | |
267 | } | |
268 | } | |
269 | ||
270 | settings.setValue("views", views); | |
271 | } | |
272 | } | |
273 | ||
274 | void Session::restore_settings(QSettings &settings) | |
275 | { | |
276 | shared_ptr<devices::Device> device; | |
277 | ||
278 | QString device_type = settings.value("device_type").toString(); | |
279 | ||
280 | if (device_type == "hardware") { | |
281 | map<string, string> dev_info; | |
282 | list<string> key_list; | |
283 | ||
284 | // Re-select last used device if possible but only if it's not demo | |
285 | settings.beginGroup("device"); | |
286 | key_list.emplace_back("vendor"); | |
287 | key_list.emplace_back("model"); | |
288 | key_list.emplace_back("version"); | |
289 | key_list.emplace_back("serial_num"); | |
290 | key_list.emplace_back("connection_id"); | |
291 | ||
292 | for (string key : key_list) { | |
293 | const QString k = QString::fromStdString(key); | |
294 | if (!settings.contains(k)) | |
295 | continue; | |
296 | ||
297 | const string value = settings.value(k).toString().toStdString(); | |
298 | if (!value.empty()) | |
299 | dev_info.insert(make_pair(key, value)); | |
300 | } | |
301 | ||
302 | if (dev_info.count("model") > 0) | |
303 | device = device_manager_.find_device_from_info(dev_info); | |
304 | ||
305 | if (device) | |
306 | set_device(device); | |
307 | ||
308 | settings.endGroup(); | |
309 | } | |
310 | ||
311 | if (device_type == "sessionfile") { | |
312 | settings.beginGroup("device"); | |
313 | QString filename = settings.value("filename").toString(); | |
314 | settings.endGroup(); | |
315 | ||
316 | if (QFileInfo(filename).isReadable()) { | |
317 | device = make_shared<devices::SessionFile>(device_manager_.context(), | |
318 | filename.toStdString()); | |
319 | set_device(device); | |
320 | ||
321 | // TODO Perform error handling | |
322 | start_capture([](QString infoMessage) { (void)infoMessage; }); | |
323 | ||
324 | set_name(QFileInfo(filename).fileName()); | |
325 | } | |
326 | } | |
327 | ||
328 | if (device) { | |
329 | // Restore channels | |
330 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
331 | settings.beginGroup(base->internal_name()); | |
332 | base->restore_settings(settings); | |
333 | settings.endGroup(); | |
334 | } | |
335 | ||
336 | // Restore decoders | |
337 | #ifdef ENABLE_DECODE | |
338 | int stacks = settings.value("decoder_stacks").toInt(); | |
339 | ||
340 | for (int i = 0; i < stacks; i++) { | |
341 | settings.beginGroup("decoder_stack" + QString::number(i++)); | |
342 | ||
343 | QString id = settings.value("id").toString(); | |
344 | add_decoder(srd_decoder_get_by_id(id.toStdString().c_str())); | |
345 | ||
346 | settings.endGroup(); | |
347 | } | |
348 | #endif | |
349 | ||
350 | // Restore views | |
351 | int views = settings.value("views").toInt(); | |
352 | ||
353 | for (int i = 0; i < views; i++) { | |
354 | settings.beginGroup("view" + QString::number(i)); | |
355 | ||
356 | if (i > 0) { | |
357 | views::ViewType type = (views::ViewType)settings.value("type").toInt(); | |
358 | add_view(name_, type, this); | |
359 | views_.back()->restore_settings(settings); | |
360 | } else | |
361 | main_view_->restore_settings(settings); | |
362 | ||
363 | settings.endGroup(); | |
364 | } | |
365 | } | |
366 | } | |
367 | ||
368 | void Session::select_device(shared_ptr<devices::Device> device) | |
369 | { | |
370 | try { | |
371 | if (device) | |
372 | set_device(device); | |
373 | else | |
374 | set_default_device(); | |
375 | } catch (const QString &e) { | |
376 | main_bar_->session_error(tr("Failed to Select Device"), | |
377 | tr("Failed to Select Device")); | |
378 | } | |
379 | } | |
380 | ||
381 | void Session::set_device(shared_ptr<devices::Device> device) | |
382 | { | |
383 | assert(device); | |
384 | ||
385 | // Ensure we are not capturing before setting the device | |
386 | stop_capture(); | |
387 | ||
388 | if (device_) | |
389 | device_->close(); | |
390 | ||
391 | device_.reset(); | |
392 | ||
393 | // Revert name back to default name (e.g. "Session 1") as the data is gone | |
394 | name_ = default_name_; | |
395 | name_changed(); | |
396 | ||
397 | // Remove all stored data | |
398 | for (shared_ptr<views::ViewBase> view : views_) { | |
399 | view->clear_signals(); | |
400 | #ifdef ENABLE_DECODE | |
401 | view->clear_decode_signals(); | |
402 | #endif | |
403 | } | |
404 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
405 | d->clear(); | |
406 | all_signal_data_.clear(); | |
407 | signalbases_.clear(); | |
408 | cur_logic_segment_.reset(); | |
409 | ||
410 | for (auto entry : cur_analog_segments_) { | |
411 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
412 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
413 | } | |
414 | ||
415 | logic_data_.reset(); | |
416 | ||
417 | signals_changed(); | |
418 | ||
419 | device_ = move(device); | |
420 | ||
421 | try { | |
422 | device_->open(); | |
423 | } catch (const QString &e) { | |
424 | device_.reset(); | |
425 | } | |
426 | ||
427 | if (device_) { | |
428 | device_->session()->add_datafeed_callback([=] | |
429 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
430 | data_feed_in(device, packet); | |
431 | }); | |
432 | ||
433 | update_signals(); | |
434 | } | |
435 | ||
436 | device_changed(); | |
437 | } | |
438 | ||
439 | void Session::set_default_device() | |
440 | { | |
441 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
442 | device_manager_.devices(); | |
443 | ||
444 | if (devices.empty()) | |
445 | return; | |
446 | ||
447 | // Try and find the demo device and select that by default | |
448 | const auto iter = find_if(devices.begin(), devices.end(), | |
449 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
450 | return d->hardware_device()->driver()->name() == "demo"; }); | |
451 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
452 | } | |
453 | ||
454 | void Session::load_init_file(const string &file_name, const string &format) | |
455 | { | |
456 | shared_ptr<InputFormat> input_format; | |
457 | ||
458 | if (!format.empty()) { | |
459 | const map<string, shared_ptr<InputFormat> > formats = | |
460 | device_manager_.context()->input_formats(); | |
461 | const auto iter = find_if(formats.begin(), formats.end(), | |
462 | [&](const pair<string, shared_ptr<InputFormat> > f) { | |
463 | return f.first == format; }); | |
464 | if (iter == formats.end()) { | |
465 | main_bar_->session_error(tr("Error"), | |
466 | tr("Unexpected input format: %s").arg(QString::fromStdString(format))); | |
467 | return; | |
468 | } | |
469 | ||
470 | input_format = (*iter).second; | |
471 | } | |
472 | ||
473 | load_file(QString::fromStdString(file_name), input_format); | |
474 | } | |
475 | ||
476 | void Session::load_file(QString file_name, | |
477 | shared_ptr<sigrok::InputFormat> format, | |
478 | const map<string, Glib::VariantBase> &options) | |
479 | { | |
480 | const QString errorMessage( | |
481 | QString("Failed to load file %1").arg(file_name)); | |
482 | ||
483 | try { | |
484 | if (format) | |
485 | set_device(shared_ptr<devices::Device>( | |
486 | new devices::InputFile( | |
487 | device_manager_.context(), | |
488 | file_name.toStdString(), | |
489 | format, options))); | |
490 | else | |
491 | set_device(shared_ptr<devices::Device>( | |
492 | new devices::SessionFile( | |
493 | device_manager_.context(), | |
494 | file_name.toStdString()))); | |
495 | } catch (Error e) { | |
496 | main_bar_->session_error(tr("Failed to load ") + file_name, e.what()); | |
497 | set_default_device(); | |
498 | main_bar_->update_device_list(); | |
499 | return; | |
500 | } | |
501 | ||
502 | main_bar_->update_device_list(); | |
503 | ||
504 | start_capture([&, errorMessage](QString infoMessage) { | |
505 | main_bar_->session_error(errorMessage, infoMessage); }); | |
506 | ||
507 | set_name(QFileInfo(file_name).fileName()); | |
508 | } | |
509 | ||
510 | Session::capture_state Session::get_capture_state() const | |
511 | { | |
512 | lock_guard<mutex> lock(sampling_mutex_); | |
513 | return capture_state_; | |
514 | } | |
515 | ||
516 | void Session::start_capture(function<void (const QString)> error_handler) | |
517 | { | |
518 | if (!device_) { | |
519 | error_handler(tr("No active device set, can't start acquisition.")); | |
520 | return; | |
521 | } | |
522 | ||
523 | stop_capture(); | |
524 | ||
525 | // Check that at least one channel is enabled | |
526 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
527 | if (sr_dev) { | |
528 | const auto channels = sr_dev->channels(); | |
529 | if (!any_of(channels.begin(), channels.end(), | |
530 | [](shared_ptr<Channel> channel) { | |
531 | return channel->enabled(); })) { | |
532 | error_handler(tr("No channels enabled.")); | |
533 | return; | |
534 | } | |
535 | } | |
536 | ||
537 | // Clear signal data | |
538 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
539 | d->clear(); | |
540 | ||
541 | // Revert name back to default name (e.g. "Session 1") for real devices | |
542 | // as the (possibly saved) data is gone. File devices keep their name. | |
543 | shared_ptr<devices::HardwareDevice> hw_device = | |
544 | dynamic_pointer_cast< devices::HardwareDevice >(device_); | |
545 | ||
546 | if (hw_device) { | |
547 | name_ = default_name_; | |
548 | name_changed(); | |
549 | } | |
550 | ||
551 | // Begin the session | |
552 | sampling_thread_ = std::thread( | |
553 | &Session::sample_thread_proc, this, error_handler); | |
554 | } | |
555 | ||
556 | void Session::stop_capture() | |
557 | { | |
558 | if (get_capture_state() != Stopped) | |
559 | device_->stop(); | |
560 | ||
561 | // Check that sampling stopped | |
562 | if (sampling_thread_.joinable()) | |
563 | sampling_thread_.join(); | |
564 | } | |
565 | ||
566 | void Session::register_view(shared_ptr<views::ViewBase> view) | |
567 | { | |
568 | if (views_.empty()) { | |
569 | main_view_ = view; | |
570 | } | |
571 | ||
572 | views_.push_back(view); | |
573 | ||
574 | update_signals(); | |
575 | } | |
576 | ||
577 | void Session::deregister_view(shared_ptr<views::ViewBase> view) | |
578 | { | |
579 | views_.remove_if([&](shared_ptr<views::ViewBase> v) { return v == view; }); | |
580 | ||
581 | if (views_.empty()) { | |
582 | main_view_.reset(); | |
583 | ||
584 | // Without a view there can be no main bar | |
585 | main_bar_.reset(); | |
586 | } | |
587 | } | |
588 | ||
589 | bool Session::has_view(shared_ptr<views::ViewBase> view) | |
590 | { | |
591 | for (shared_ptr<views::ViewBase> v : views_) | |
592 | if (v == view) | |
593 | return true; | |
594 | ||
595 | return false; | |
596 | } | |
597 | ||
598 | double Session::get_samplerate() const | |
599 | { | |
600 | double samplerate = 0.0; | |
601 | ||
602 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
603 | assert(d); | |
604 | const vector< shared_ptr<pv::data::Segment> > segments = | |
605 | d->segments(); | |
606 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
607 | samplerate = max(samplerate, s->samplerate()); | |
608 | } | |
609 | // If there is no sample rate given we use samples as unit | |
610 | if (samplerate == 0.0) | |
611 | samplerate = 1.0; | |
612 | ||
613 | return samplerate; | |
614 | } | |
615 | ||
616 | const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const | |
617 | { | |
618 | return signalbases_; | |
619 | } | |
620 | ||
621 | #ifdef ENABLE_DECODE | |
622 | bool Session::add_decoder(srd_decoder *const dec) | |
623 | { | |
624 | map<const srd_channel*, shared_ptr<data::SignalBase> > channels; | |
625 | shared_ptr<data::DecoderStack> decoder_stack; | |
626 | ||
627 | try { | |
628 | // Create the decoder | |
629 | decoder_stack = make_shared<data::DecoderStack>(*this, dec); | |
630 | ||
631 | // Make a list of all the channels | |
632 | vector<const srd_channel*> all_channels; | |
633 | for (const GSList *i = dec->channels; i; i = i->next) | |
634 | all_channels.push_back((const srd_channel*)i->data); | |
635 | for (const GSList *i = dec->opt_channels; i; i = i->next) | |
636 | all_channels.push_back((const srd_channel*)i->data); | |
637 | ||
638 | // Auto select the initial channels | |
639 | for (const srd_channel *pdch : all_channels) | |
640 | for (shared_ptr<data::SignalBase> b : signalbases_) { | |
641 | if (b->type() == ChannelType::LOGIC) { | |
642 | if (QString::fromUtf8(pdch->name).toLower(). | |
643 | contains(b->name().toLower())) | |
644 | channels[pdch] = b; | |
645 | } | |
646 | } | |
647 | ||
648 | assert(decoder_stack); | |
649 | assert(!decoder_stack->stack().empty()); | |
650 | assert(decoder_stack->stack().front()); | |
651 | decoder_stack->stack().front()->set_channels(channels); | |
652 | ||
653 | // Create the decode signal | |
654 | shared_ptr<data::SignalBase> signalbase = | |
655 | make_shared<data::SignalBase>(nullptr); | |
656 | ||
657 | signalbase->set_decoder_stack(decoder_stack); | |
658 | signalbases_.insert(signalbase); | |
659 | ||
660 | for (shared_ptr<views::ViewBase> view : views_) | |
661 | view->add_decode_signal(signalbase); | |
662 | } catch (runtime_error e) { | |
663 | return false; | |
664 | } | |
665 | ||
666 | signals_changed(); | |
667 | ||
668 | // Do an initial decode | |
669 | decoder_stack->begin_decode(); | |
670 | ||
671 | return true; | |
672 | } | |
673 | ||
674 | void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase) | |
675 | { | |
676 | signalbases_.erase(signalbase); | |
677 | ||
678 | for (shared_ptr<views::ViewBase> view : views_) | |
679 | view->remove_decode_signal(signalbase); | |
680 | ||
681 | signals_changed(); | |
682 | } | |
683 | #endif | |
684 | ||
685 | void Session::set_capture_state(capture_state state) | |
686 | { | |
687 | bool changed; | |
688 | ||
689 | { | |
690 | lock_guard<mutex> lock(sampling_mutex_); | |
691 | changed = capture_state_ != state; | |
692 | capture_state_ = state; | |
693 | } | |
694 | ||
695 | if (changed) | |
696 | capture_state_changed(state); | |
697 | } | |
698 | ||
699 | void Session::update_signals() | |
700 | { | |
701 | if (!device_) { | |
702 | signalbases_.clear(); | |
703 | logic_data_.reset(); | |
704 | for (shared_ptr<views::ViewBase> view : views_) { | |
705 | view->clear_signals(); | |
706 | #ifdef ENABLE_DECODE | |
707 | view->clear_decode_signals(); | |
708 | #endif | |
709 | } | |
710 | return; | |
711 | } | |
712 | ||
713 | lock_guard<recursive_mutex> lock(data_mutex_); | |
714 | ||
715 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
716 | if (!sr_dev) { | |
717 | signalbases_.clear(); | |
718 | logic_data_.reset(); | |
719 | for (shared_ptr<views::ViewBase> view : views_) { | |
720 | view->clear_signals(); | |
721 | #ifdef ENABLE_DECODE | |
722 | view->clear_decode_signals(); | |
723 | #endif | |
724 | } | |
725 | return; | |
726 | } | |
727 | ||
728 | // Detect what data types we will receive | |
729 | auto channels = sr_dev->channels(); | |
730 | unsigned int logic_channel_count = count_if( | |
731 | channels.begin(), channels.end(), | |
732 | [] (shared_ptr<Channel> channel) { | |
733 | return channel->type() == ChannelType::LOGIC; }); | |
734 | ||
735 | // Create data containers for the logic data segments | |
736 | { | |
737 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
738 | ||
739 | if (logic_channel_count == 0) { | |
740 | logic_data_.reset(); | |
741 | } else if (!logic_data_ || | |
742 | logic_data_->num_channels() != logic_channel_count) { | |
743 | logic_data_.reset(new data::Logic( | |
744 | logic_channel_count)); | |
745 | assert(logic_data_); | |
746 | } | |
747 | } | |
748 | ||
749 | // Make the signals list | |
750 | for (shared_ptr<views::ViewBase> viewbase : views_) { | |
751 | views::TraceView::View *trace_view = | |
752 | qobject_cast<views::TraceView::View*>(viewbase.get()); | |
753 | ||
754 | if (trace_view) { | |
755 | unordered_set< shared_ptr<views::TraceView::Signal> > | |
756 | prev_sigs(trace_view->signals()); | |
757 | trace_view->clear_signals(); | |
758 | ||
759 | for (auto channel : sr_dev->channels()) { | |
760 | shared_ptr<data::SignalBase> signalbase; | |
761 | shared_ptr<views::TraceView::Signal> signal; | |
762 | ||
763 | // Find the channel in the old signals | |
764 | const auto iter = find_if( | |
765 | prev_sigs.cbegin(), prev_sigs.cend(), | |
766 | [&](const shared_ptr<views::TraceView::Signal> &s) { | |
767 | return s->base()->channel() == channel; | |
768 | }); | |
769 | if (iter != prev_sigs.end()) { | |
770 | // Copy the signal from the old set to the new | |
771 | signal = *iter; | |
772 | trace_view->add_signal(signal); | |
773 | } else { | |
774 | // Find the signalbase for this channel if possible | |
775 | signalbase.reset(); | |
776 | for (const shared_ptr<data::SignalBase> b : signalbases_) | |
777 | if (b->channel() == channel) | |
778 | signalbase = b; | |
779 | ||
780 | switch(channel->type()->id()) { | |
781 | case SR_CHANNEL_LOGIC: | |
782 | if (!signalbase) { | |
783 | signalbase = make_shared<data::SignalBase>(channel); | |
784 | signalbases_.insert(signalbase); | |
785 | ||
786 | all_signal_data_.insert(logic_data_); | |
787 | signalbase->set_data(logic_data_); | |
788 | } | |
789 | ||
790 | signal = shared_ptr<views::TraceView::Signal>( | |
791 | new views::TraceView::LogicSignal(*this, | |
792 | device_, signalbase)); | |
793 | trace_view->add_signal(signal); | |
794 | break; | |
795 | ||
796 | case SR_CHANNEL_ANALOG: | |
797 | { | |
798 | if (!signalbase) { | |
799 | signalbase = make_shared<data::SignalBase>(channel); | |
800 | signalbases_.insert(signalbase); | |
801 | ||
802 | shared_ptr<data::Analog> data(new data::Analog()); | |
803 | all_signal_data_.insert(data); | |
804 | signalbase->set_data(data); | |
805 | } | |
806 | ||
807 | signal = shared_ptr<views::TraceView::Signal>( | |
808 | new views::TraceView::AnalogSignal( | |
809 | *this, signalbase)); | |
810 | trace_view->add_signal(signal); | |
811 | break; | |
812 | } | |
813 | ||
814 | default: | |
815 | assert(0); | |
816 | break; | |
817 | } | |
818 | } | |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | signals_changed(); | |
824 | } | |
825 | ||
826 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
827 | shared_ptr<sigrok::Channel> channel) const | |
828 | { | |
829 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
830 | assert(sig); | |
831 | if (sig->channel() == channel) | |
832 | return sig; | |
833 | } | |
834 | return shared_ptr<data::SignalBase>(); | |
835 | } | |
836 | ||
837 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
838 | { | |
839 | assert(error_handler); | |
840 | ||
841 | if (!device_) | |
842 | return; | |
843 | ||
844 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
845 | ||
846 | out_of_memory_ = false; | |
847 | ||
848 | try { | |
849 | device_->start(); | |
850 | } catch (Error e) { | |
851 | error_handler(e.what()); | |
852 | return; | |
853 | } | |
854 | ||
855 | set_capture_state(device_->session()->trigger() ? | |
856 | AwaitingTrigger : Running); | |
857 | ||
858 | device_->run(); | |
859 | set_capture_state(Stopped); | |
860 | ||
861 | // Confirm that SR_DF_END was received | |
862 | if (cur_logic_segment_) { | |
863 | qDebug("SR_DF_END was not received."); | |
864 | assert(0); | |
865 | } | |
866 | ||
867 | // Optimize memory usage | |
868 | free_unused_memory(); | |
869 | ||
870 | // We now have unsaved data unless we just "captured" from a file | |
871 | shared_ptr<devices::File> file_device = | |
872 | dynamic_pointer_cast<devices::File>(device_); | |
873 | ||
874 | if (!file_device) | |
875 | data_saved_ = false; | |
876 | ||
877 | if (out_of_memory_) | |
878 | error_handler(tr("Out of memory, acquisition stopped.")); | |
879 | } | |
880 | ||
881 | void Session::free_unused_memory() | |
882 | { | |
883 | for (shared_ptr<data::SignalData> data : all_signal_data_) { | |
884 | const vector< shared_ptr<data::Segment> > segments = data->segments(); | |
885 | ||
886 | for (shared_ptr<data::Segment> segment : segments) { | |
887 | segment->free_unused_memory(); | |
888 | } | |
889 | } | |
890 | } | |
891 | ||
892 | void Session::feed_in_header() | |
893 | { | |
894 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
895 | } | |
896 | ||
897 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
898 | { | |
899 | for (auto entry : meta->config()) { | |
900 | switch (entry.first->id()) { | |
901 | case SR_CONF_SAMPLERATE: | |
902 | // We can't rely on the header to always contain the sample rate, | |
903 | // so in case it's supplied via a meta packet, we use it. | |
904 | if (!cur_samplerate_) | |
905 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
906 | ||
907 | /// @todo handle samplerate changes | |
908 | break; | |
909 | default: | |
910 | // Unknown metadata is not an error. | |
911 | break; | |
912 | } | |
913 | } | |
914 | ||
915 | signals_changed(); | |
916 | } | |
917 | ||
918 | void Session::feed_in_trigger() | |
919 | { | |
920 | // The channel containing most samples should be most accurate | |
921 | uint64_t sample_count = 0; | |
922 | ||
923 | { | |
924 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
925 | assert(d); | |
926 | uint64_t temp_count = 0; | |
927 | ||
928 | const vector< shared_ptr<pv::data::Segment> > segments = | |
929 | d->segments(); | |
930 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
931 | temp_count += s->get_sample_count(); | |
932 | ||
933 | if (temp_count > sample_count) | |
934 | sample_count = temp_count; | |
935 | } | |
936 | } | |
937 | ||
938 | trigger_event(sample_count / get_samplerate()); | |
939 | } | |
940 | ||
941 | void Session::feed_in_frame_begin() | |
942 | { | |
943 | if (cur_logic_segment_ || !cur_analog_segments_.empty()) | |
944 | frame_began(); | |
945 | } | |
946 | ||
947 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
948 | { | |
949 | lock_guard<recursive_mutex> lock(data_mutex_); | |
950 | ||
951 | if (!logic_data_) { | |
952 | // The only reason logic_data_ would not have been created is | |
953 | // if it was not possible to determine the signals when the | |
954 | // device was created. | |
955 | update_signals(); | |
956 | } | |
957 | ||
958 | if (!cur_logic_segment_) { | |
959 | // This could be the first packet after a trigger | |
960 | set_capture_state(Running); | |
961 | ||
962 | // Create a new data segment | |
963 | cur_logic_segment_ = make_shared<data::LogicSegment>( | |
964 | *logic_data_, logic, cur_samplerate_); | |
965 | logic_data_->push_segment(cur_logic_segment_); | |
966 | ||
967 | // @todo Putting this here means that only listeners querying | |
968 | // for logic will be notified. Currently the only user of | |
969 | // frame_began is DecoderStack, but in future we need to signal | |
970 | // this after both analog and logic sweeps have begun. | |
971 | frame_began(); | |
972 | } else { | |
973 | // Append to the existing data segment | |
974 | cur_logic_segment_->append_payload(logic); | |
975 | } | |
976 | ||
977 | data_received(); | |
978 | } | |
979 | ||
980 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
981 | { | |
982 | lock_guard<recursive_mutex> lock(data_mutex_); | |
983 | ||
984 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
985 | const unsigned int channel_count = channels.size(); | |
986 | const size_t sample_count = analog->num_samples() / channel_count; | |
987 | const float *data = static_cast<const float *>(analog->data_pointer()); | |
988 | bool sweep_beginning = false; | |
989 | ||
990 | if (signalbases_.empty()) | |
991 | update_signals(); | |
992 | ||
993 | for (auto channel : channels) { | |
994 | shared_ptr<data::AnalogSegment> segment; | |
995 | ||
996 | // Try to get the segment of the channel | |
997 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
998 | iterator iter = cur_analog_segments_.find(channel); | |
999 | if (iter != cur_analog_segments_.end()) | |
1000 | segment = (*iter).second; | |
1001 | else { | |
1002 | // If no segment was found, this means we haven't | |
1003 | // created one yet. i.e. this is the first packet | |
1004 | // in the sweep containing this segment. | |
1005 | sweep_beginning = true; | |
1006 | ||
1007 | // Find the analog data associated with the channel | |
1008 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
1009 | assert(base); | |
1010 | ||
1011 | shared_ptr<data::Analog> data(base->analog_data()); | |
1012 | assert(data); | |
1013 | ||
1014 | // Create a segment, keep it in the maps of channels | |
1015 | segment = make_shared<data::AnalogSegment>( | |
1016 | *data, cur_samplerate_); | |
1017 | cur_analog_segments_[channel] = segment; | |
1018 | ||
1019 | // Push the segment into the analog data. | |
1020 | data->push_segment(segment); | |
1021 | } | |
1022 | ||
1023 | assert(segment); | |
1024 | ||
1025 | // Append the samples in the segment | |
1026 | segment->append_interleaved_samples(data++, sample_count, | |
1027 | channel_count); | |
1028 | } | |
1029 | ||
1030 | if (sweep_beginning) { | |
1031 | // This could be the first packet after a trigger | |
1032 | set_capture_state(Running); | |
1033 | } | |
1034 | ||
1035 | data_received(); | |
1036 | } | |
1037 | ||
1038 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
1039 | shared_ptr<Packet> packet) | |
1040 | { | |
1041 | static bool frame_began=false; | |
1042 | ||
1043 | (void)device; | |
1044 | ||
1045 | assert(device); | |
1046 | assert(device == device_->device()); | |
1047 | assert(packet); | |
1048 | ||
1049 | switch (packet->type()->id()) { | |
1050 | case SR_DF_HEADER: | |
1051 | feed_in_header(); | |
1052 | break; | |
1053 | ||
1054 | case SR_DF_META: | |
1055 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
1056 | break; | |
1057 | ||
1058 | case SR_DF_TRIGGER: | |
1059 | feed_in_trigger(); | |
1060 | break; | |
1061 | ||
1062 | case SR_DF_FRAME_BEGIN: | |
1063 | feed_in_frame_begin(); | |
1064 | frame_began = true; | |
1065 | break; | |
1066 | ||
1067 | case SR_DF_LOGIC: | |
1068 | try { | |
1069 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
1070 | } catch (bad_alloc) { | |
1071 | out_of_memory_ = true; | |
1072 | device_->stop(); | |
1073 | } | |
1074 | break; | |
1075 | ||
1076 | case SR_DF_ANALOG: | |
1077 | try { | |
1078 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
1079 | } catch (bad_alloc) { | |
1080 | out_of_memory_ = true; | |
1081 | device_->stop(); | |
1082 | } | |
1083 | break; | |
1084 | ||
1085 | case SR_DF_FRAME_END: | |
1086 | case SR_DF_END: | |
1087 | { | |
1088 | { | |
1089 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1090 | cur_logic_segment_.reset(); | |
1091 | cur_analog_segments_.clear(); | |
1092 | } | |
1093 | if (frame_began) { | |
1094 | frame_began = false; | |
1095 | frame_ended(); | |
1096 | } | |
1097 | break; | |
1098 | } | |
1099 | default: | |
1100 | break; | |
1101 | } | |
1102 | } | |
1103 | ||
1104 | void Session::on_data_saved() | |
1105 | { | |
1106 | data_saved_ = true; | |
1107 | } | |
1108 | ||
1109 | } // namespace pv |