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