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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifdef _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 <QFileInfo> | |
30 | ||
31 | #include <cassert> | |
32 | #include <mutex> | |
33 | #include <stdexcept> | |
34 | ||
35 | #include <sys/stat.h> | |
36 | ||
37 | #include "session.hpp" | |
38 | #include "devicemanager.hpp" | |
39 | ||
40 | #include "data/analog.hpp" | |
41 | #include "data/analogsegment.hpp" | |
42 | #include "data/decoderstack.hpp" | |
43 | #include "data/logic.hpp" | |
44 | #include "data/logicsegment.hpp" | |
45 | #include "data/signalbase.hpp" | |
46 | #include "data/decode/decoder.hpp" | |
47 | ||
48 | #include "devices/hardwaredevice.hpp" | |
49 | #include "devices/inputfile.hpp" | |
50 | #include "devices/sessionfile.hpp" | |
51 | ||
52 | #include "toolbars/mainbar.hpp" | |
53 | ||
54 | #include "view/analogsignal.hpp" | |
55 | #include "view/decodetrace.hpp" | |
56 | #include "view/logicsignal.hpp" | |
57 | #include "view/signal.hpp" | |
58 | #include "view/view.hpp" | |
59 | ||
60 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
61 | ||
62 | #ifdef ENABLE_DECODE | |
63 | #include <libsigrokdecode/libsigrokdecode.h> | |
64 | #endif | |
65 | ||
66 | using boost::shared_lock; | |
67 | using boost::shared_mutex; | |
68 | using boost::unique_lock; | |
69 | ||
70 | using std::dynamic_pointer_cast; | |
71 | using std::function; | |
72 | using std::lock_guard; | |
73 | using std::list; | |
74 | using std::map; | |
75 | using std::mutex; | |
76 | using std::pair; | |
77 | using std::recursive_mutex; | |
78 | using std::set; | |
79 | using std::shared_ptr; | |
80 | using std::string; | |
81 | using std::unordered_set; | |
82 | using std::vector; | |
83 | ||
84 | using sigrok::Analog; | |
85 | using sigrok::Channel; | |
86 | using sigrok::ChannelType; | |
87 | using sigrok::ConfigKey; | |
88 | using sigrok::DatafeedCallbackFunction; | |
89 | using sigrok::Error; | |
90 | using sigrok::Header; | |
91 | using sigrok::InputFormat; | |
92 | using sigrok::Logic; | |
93 | using sigrok::Meta; | |
94 | using sigrok::OutputFormat; | |
95 | using sigrok::Packet; | |
96 | using sigrok::PacketPayload; | |
97 | using sigrok::Session; | |
98 | using sigrok::SessionDevice; | |
99 | ||
100 | using Glib::VariantBase; | |
101 | using Glib::Variant; | |
102 | ||
103 | namespace pv { | |
104 | Session::Session(DeviceManager &device_manager, QString name) : | |
105 | device_manager_(device_manager), | |
106 | default_name_(name), | |
107 | name_(name), | |
108 | capture_state_(Stopped), | |
109 | cur_samplerate_(0) | |
110 | { | |
111 | } | |
112 | ||
113 | Session::~Session() | |
114 | { | |
115 | // Stop and join to the thread | |
116 | stop_capture(); | |
117 | } | |
118 | ||
119 | DeviceManager& Session::device_manager() | |
120 | { | |
121 | return device_manager_; | |
122 | } | |
123 | ||
124 | const DeviceManager& Session::device_manager() const | |
125 | { | |
126 | return device_manager_; | |
127 | } | |
128 | ||
129 | shared_ptr<sigrok::Session> Session::session() const | |
130 | { | |
131 | if (!device_) | |
132 | return shared_ptr<sigrok::Session>(); | |
133 | return device_->session(); | |
134 | } | |
135 | ||
136 | shared_ptr<devices::Device> Session::device() const | |
137 | { | |
138 | return device_; | |
139 | } | |
140 | ||
141 | QString Session::name() const | |
142 | { | |
143 | return name_; | |
144 | } | |
145 | ||
146 | void Session::set_name(QString name) | |
147 | { | |
148 | if (default_name_.isEmpty()) | |
149 | default_name_ = name; | |
150 | ||
151 | name_ = name; | |
152 | ||
153 | name_changed(); | |
154 | } | |
155 | ||
156 | const std::list< std::shared_ptr<views::ViewBase> > Session::views() const | |
157 | { | |
158 | return views_; | |
159 | } | |
160 | ||
161 | std::shared_ptr<views::ViewBase> Session::main_view() const | |
162 | { | |
163 | return main_view_; | |
164 | } | |
165 | ||
166 | void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar) | |
167 | { | |
168 | main_bar_ = main_bar; | |
169 | } | |
170 | ||
171 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
172 | { | |
173 | return main_bar_; | |
174 | } | |
175 | ||
176 | void Session::save_settings(QSettings &settings) const | |
177 | { | |
178 | map<string, string> dev_info; | |
179 | list<string> key_list; | |
180 | int stacks = 0, views = 0; | |
181 | ||
182 | if (device_) { | |
183 | shared_ptr<devices::HardwareDevice> hw_device = | |
184 | dynamic_pointer_cast< devices::HardwareDevice >(device_); | |
185 | ||
186 | if (hw_device) { | |
187 | settings.setValue("device_type", "hardware"); | |
188 | settings.beginGroup("device"); | |
189 | ||
190 | key_list.push_back("vendor"); | |
191 | key_list.push_back("model"); | |
192 | key_list.push_back("version"); | |
193 | key_list.push_back("serial_num"); | |
194 | key_list.push_back("connection_id"); | |
195 | ||
196 | dev_info = device_manager_.get_device_info(device_); | |
197 | ||
198 | for (string key : key_list) { | |
199 | if (dev_info.count(key)) | |
200 | settings.setValue(QString::fromUtf8(key.c_str()), | |
201 | QString::fromUtf8(dev_info.at(key).c_str())); | |
202 | else | |
203 | settings.remove(QString::fromUtf8(key.c_str())); | |
204 | } | |
205 | ||
206 | settings.endGroup(); | |
207 | } | |
208 | ||
209 | shared_ptr<devices::SessionFile> sessionfile_device = | |
210 | dynamic_pointer_cast< devices::SessionFile >(device_); | |
211 | ||
212 | if (sessionfile_device) { | |
213 | settings.setValue("device_type", "sessionfile"); | |
214 | settings.beginGroup("device"); | |
215 | settings.setValue("filename", QString::fromStdString( | |
216 | sessionfile_device->full_name())); | |
217 | settings.endGroup(); | |
218 | } | |
219 | ||
220 | // Save channels and decoders | |
221 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
222 | #ifdef ENABLE_DECODE | |
223 | if (base->is_decode_signal()) { | |
224 | shared_ptr<pv::data::DecoderStack> decoder_stack = | |
225 | base->decoder_stack(); | |
226 | std::shared_ptr<data::decode::Decoder> top_decoder = | |
227 | decoder_stack->stack().front(); | |
228 | ||
229 | settings.beginGroup("decoder_stack" + QString::number(stacks++)); | |
230 | settings.setValue("id", top_decoder->decoder()->id); | |
231 | settings.setValue("name", top_decoder->decoder()->name); | |
232 | settings.endGroup(); | |
233 | } else | |
234 | #endif | |
235 | { | |
236 | settings.beginGroup(base->internal_name()); | |
237 | base->save_settings(settings); | |
238 | settings.endGroup(); | |
239 | } | |
240 | } | |
241 | ||
242 | settings.setValue("decoder_stacks", stacks); | |
243 | ||
244 | // Save view states and their signal settings | |
245 | // Note: main_view must be saved as view0 | |
246 | settings.beginGroup("view" + QString::number(views++)); | |
247 | main_view_->save_settings(settings); | |
248 | settings.endGroup(); | |
249 | ||
250 | for (shared_ptr<views::ViewBase> view : views_) { | |
251 | if (view != main_view_) { | |
252 | settings.beginGroup("view" + QString::number(views++)); | |
253 | view->save_settings(settings); | |
254 | settings.endGroup(); | |
255 | } | |
256 | } | |
257 | ||
258 | settings.setValue("views", views); | |
259 | } | |
260 | } | |
261 | ||
262 | void Session::restore_settings(QSettings &settings) | |
263 | { | |
264 | shared_ptr<devices::Device> device; | |
265 | ||
266 | QString device_type = settings.value("device_type").toString(); | |
267 | ||
268 | if (device_type == "hardware") { | |
269 | map<string, string> dev_info; | |
270 | list<string> key_list; | |
271 | ||
272 | // Re-select last used device if possible but only if it's not demo | |
273 | settings.beginGroup("device"); | |
274 | key_list.push_back("vendor"); | |
275 | key_list.push_back("model"); | |
276 | key_list.push_back("version"); | |
277 | key_list.push_back("serial_num"); | |
278 | key_list.push_back("connection_id"); | |
279 | ||
280 | for (string key : key_list) { | |
281 | const QString k = QString::fromStdString(key); | |
282 | if (!settings.contains(k)) | |
283 | continue; | |
284 | ||
285 | const string value = settings.value(k).toString().toStdString(); | |
286 | if (!value.empty()) | |
287 | dev_info.insert(std::make_pair(key, value)); | |
288 | } | |
289 | ||
290 | if (dev_info.count("model") > 0) | |
291 | device = device_manager_.find_device_from_info(dev_info); | |
292 | ||
293 | if (device) | |
294 | set_device(device); | |
295 | ||
296 | settings.endGroup(); | |
297 | } | |
298 | ||
299 | if (device_type == "sessionfile") { | |
300 | settings.beginGroup("device"); | |
301 | QString filename = settings.value("filename").toString(); | |
302 | settings.endGroup(); | |
303 | ||
304 | if (QFileInfo(filename).isReadable()) { | |
305 | device = std::make_shared<devices::SessionFile>(device_manager_.context(), | |
306 | filename.toStdString()); | |
307 | set_device(device); | |
308 | ||
309 | // TODO Perform error handling | |
310 | start_capture([](QString infoMessage) { (void)infoMessage; }); | |
311 | ||
312 | set_name(QFileInfo(filename).fileName()); | |
313 | } | |
314 | } | |
315 | ||
316 | if (device) { | |
317 | // Restore channels | |
318 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
319 | settings.beginGroup(base->internal_name()); | |
320 | base->restore_settings(settings); | |
321 | settings.endGroup(); | |
322 | } | |
323 | ||
324 | // Restore decoders | |
325 | #ifdef ENABLE_DECODE | |
326 | int stacks = settings.value("decoder_stacks").toInt(); | |
327 | ||
328 | for (int i = 0; i < stacks; i++) { | |
329 | settings.beginGroup("decoder_stack" + QString::number(i++)); | |
330 | ||
331 | QString id = settings.value("id").toString(); | |
332 | add_decoder(srd_decoder_get_by_id(id.toStdString().c_str())); | |
333 | ||
334 | settings.endGroup(); | |
335 | } | |
336 | #endif | |
337 | ||
338 | // Restore views | |
339 | int views = settings.value("views").toInt(); | |
340 | ||
341 | for (int i = 0; i < views; i++) { | |
342 | settings.beginGroup("view" + QString::number(i)); | |
343 | ||
344 | if (i > 0) { | |
345 | views::ViewType type = (views::ViewType)settings.value("type").toInt(); | |
346 | add_view(name_, type, this); | |
347 | views_.back()->restore_settings(settings); | |
348 | } else | |
349 | main_view_->restore_settings(settings); | |
350 | ||
351 | settings.endGroup(); | |
352 | } | |
353 | } | |
354 | } | |
355 | ||
356 | void Session::select_device(shared_ptr<devices::Device> device) | |
357 | { | |
358 | try { | |
359 | if (device) | |
360 | set_device(device); | |
361 | else | |
362 | set_default_device(); | |
363 | } catch (const QString &e) { | |
364 | main_bar_->session_error(tr("Failed to Select Device"), | |
365 | tr("Failed to Select Device")); | |
366 | } | |
367 | } | |
368 | ||
369 | void Session::set_device(shared_ptr<devices::Device> device) | |
370 | { | |
371 | assert(device); | |
372 | ||
373 | // Ensure we are not capturing before setting the device | |
374 | stop_capture(); | |
375 | ||
376 | if (device_) | |
377 | device_->close(); | |
378 | ||
379 | device_.reset(); | |
380 | ||
381 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
382 | name_ = default_name_; | |
383 | name_changed(); | |
384 | ||
385 | // Remove all stored data | |
386 | for (std::shared_ptr<views::ViewBase> view : views_) { | |
387 | view->clear_signals(); | |
388 | #ifdef ENABLE_DECODE | |
389 | view->clear_decode_signals(); | |
390 | #endif | |
391 | } | |
392 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
393 | d->clear(); | |
394 | all_signal_data_.clear(); | |
395 | signalbases_.clear(); | |
396 | cur_logic_segment_.reset(); | |
397 | ||
398 | for (auto entry : cur_analog_segments_) { | |
399 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
400 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
401 | } | |
402 | ||
403 | logic_data_.reset(); | |
404 | ||
405 | signals_changed(); | |
406 | ||
407 | device_ = std::move(device); | |
408 | ||
409 | try { | |
410 | device_->open(); | |
411 | } catch (const QString &e) { | |
412 | device_.reset(); | |
413 | device_changed(); | |
414 | throw; | |
415 | } | |
416 | ||
417 | device_->session()->add_datafeed_callback([=] | |
418 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
419 | data_feed_in(device, packet); | |
420 | }); | |
421 | ||
422 | update_signals(); | |
423 | device_changed(); | |
424 | } | |
425 | ||
426 | void Session::set_default_device() | |
427 | { | |
428 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
429 | device_manager_.devices(); | |
430 | ||
431 | if (devices.empty()) | |
432 | return; | |
433 | ||
434 | // Try and find the demo device and select that by default | |
435 | const auto iter = std::find_if(devices.begin(), devices.end(), | |
436 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
437 | return d->hardware_device()->driver()->name() == | |
438 | "demo"; }); | |
439 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
440 | } | |
441 | ||
442 | void Session::load_init_file(const std::string &file_name, | |
443 | const std::string &format) | |
444 | { | |
445 | shared_ptr<InputFormat> input_format; | |
446 | ||
447 | if (!format.empty()) { | |
448 | const map<string, shared_ptr<InputFormat> > formats = | |
449 | device_manager_.context()->input_formats(); | |
450 | const auto iter = find_if(formats.begin(), formats.end(), | |
451 | [&](const pair<string, shared_ptr<InputFormat> > f) { | |
452 | return f.first == format; }); | |
453 | if (iter == formats.end()) { | |
454 | main_bar_->session_error(tr("Error"), | |
455 | tr("Unexpected input format: %s").arg(QString::fromStdString(format))); | |
456 | return; | |
457 | } | |
458 | ||
459 | input_format = (*iter).second; | |
460 | } | |
461 | ||
462 | load_file(QString::fromStdString(file_name), input_format); | |
463 | } | |
464 | ||
465 | void Session::load_file(QString file_name, | |
466 | std::shared_ptr<sigrok::InputFormat> format, | |
467 | const std::map<std::string, Glib::VariantBase> &options) | |
468 | { | |
469 | const QString errorMessage( | |
470 | QString("Failed to load file %1").arg(file_name)); | |
471 | ||
472 | try { | |
473 | if (format) | |
474 | set_device(shared_ptr<devices::Device>( | |
475 | new devices::InputFile( | |
476 | device_manager_.context(), | |
477 | file_name.toStdString(), | |
478 | format, options))); | |
479 | else | |
480 | set_device(shared_ptr<devices::Device>( | |
481 | new devices::SessionFile( | |
482 | device_manager_.context(), | |
483 | file_name.toStdString()))); | |
484 | } catch (Error e) { | |
485 | main_bar_->session_error(tr("Failed to load ") + file_name, e.what()); | |
486 | set_default_device(); | |
487 | main_bar_->update_device_list(); | |
488 | return; | |
489 | } | |
490 | ||
491 | main_bar_->update_device_list(); | |
492 | ||
493 | start_capture([&, errorMessage](QString infoMessage) { | |
494 | main_bar_->session_error(errorMessage, infoMessage); }); | |
495 | ||
496 | set_name(QFileInfo(file_name).fileName()); | |
497 | } | |
498 | ||
499 | Session::capture_state Session::get_capture_state() const | |
500 | { | |
501 | lock_guard<mutex> lock(sampling_mutex_); | |
502 | return capture_state_; | |
503 | } | |
504 | ||
505 | void Session::start_capture(function<void (const QString)> error_handler) | |
506 | { | |
507 | if (!device_) { | |
508 | error_handler(tr("No active device set, can't start acquisition.")); | |
509 | return; | |
510 | } | |
511 | ||
512 | stop_capture(); | |
513 | ||
514 | // Check that at least one channel is enabled | |
515 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
516 | if (sr_dev) { | |
517 | const auto channels = sr_dev->channels(); | |
518 | if (!std::any_of(channels.begin(), channels.end(), | |
519 | [](shared_ptr<Channel> channel) { | |
520 | return channel->enabled(); })) { | |
521 | error_handler(tr("No channels enabled.")); | |
522 | return; | |
523 | } | |
524 | } | |
525 | ||
526 | // Clear signal data | |
527 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
528 | d->clear(); | |
529 | ||
530 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
531 | name_ = default_name_; | |
532 | name_changed(); | |
533 | ||
534 | // Begin the session | |
535 | sampling_thread_ = std::thread( | |
536 | &Session::sample_thread_proc, this, error_handler); | |
537 | } | |
538 | ||
539 | void Session::stop_capture() | |
540 | { | |
541 | if (get_capture_state() != Stopped) | |
542 | device_->stop(); | |
543 | ||
544 | // Check that sampling stopped | |
545 | if (sampling_thread_.joinable()) | |
546 | sampling_thread_.join(); | |
547 | } | |
548 | ||
549 | void Session::register_view(std::shared_ptr<views::ViewBase> view) | |
550 | { | |
551 | if (views_.empty()) { | |
552 | main_view_ = view; | |
553 | } | |
554 | ||
555 | views_.push_back(view); | |
556 | ||
557 | update_signals(); | |
558 | } | |
559 | ||
560 | void Session::deregister_view(std::shared_ptr<views::ViewBase> view) | |
561 | { | |
562 | views_.remove_if([&](std::shared_ptr<views::ViewBase> v) { | |
563 | return v == view; }); | |
564 | ||
565 | if (views_.empty()) { | |
566 | main_view_.reset(); | |
567 | ||
568 | // Without a view there can be no main bar | |
569 | main_bar_.reset(); | |
570 | } | |
571 | } | |
572 | ||
573 | bool Session::has_view(std::shared_ptr<views::ViewBase> view) | |
574 | { | |
575 | for (std::shared_ptr<views::ViewBase> v : views_) | |
576 | if (v == view) | |
577 | return true; | |
578 | ||
579 | return false; | |
580 | } | |
581 | ||
582 | double Session::get_samplerate() const | |
583 | { | |
584 | double samplerate = 0.0; | |
585 | ||
586 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
587 | assert(d); | |
588 | const vector< shared_ptr<pv::data::Segment> > segments = | |
589 | d->segments(); | |
590 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
591 | samplerate = std::max(samplerate, s->samplerate()); | |
592 | } | |
593 | // If there is no sample rate given we use samples as unit | |
594 | if (samplerate == 0.0) | |
595 | samplerate = 1.0; | |
596 | ||
597 | return samplerate; | |
598 | } | |
599 | ||
600 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
601 | Session::signalbases() const | |
602 | { | |
603 | return signalbases_; | |
604 | } | |
605 | ||
606 | #ifdef ENABLE_DECODE | |
607 | bool Session::add_decoder(srd_decoder *const dec) | |
608 | { | |
609 | map<const srd_channel*, shared_ptr<data::SignalBase> > channels; | |
610 | shared_ptr<data::DecoderStack> decoder_stack; | |
611 | ||
612 | try { | |
613 | // Create the decoder | |
614 | decoder_stack = shared_ptr<data::DecoderStack>( | |
615 | new data::DecoderStack(*this, dec)); | |
616 | ||
617 | // Make a list of all the channels | |
618 | std::vector<const srd_channel*> all_channels; | |
619 | for (const GSList *i = dec->channels; i; i = i->next) | |
620 | all_channels.push_back((const srd_channel*)i->data); | |
621 | for (const GSList *i = dec->opt_channels; i; i = i->next) | |
622 | all_channels.push_back((const srd_channel*)i->data); | |
623 | ||
624 | // Auto select the initial channels | |
625 | for (const srd_channel *pdch : all_channels) | |
626 | for (shared_ptr<data::SignalBase> b : signalbases_) { | |
627 | if (b->type() == ChannelType::LOGIC) { | |
628 | if (QString::fromUtf8(pdch->name).toLower(). | |
629 | contains(b->name().toLower())) | |
630 | channels[pdch] = b; | |
631 | } | |
632 | } | |
633 | ||
634 | assert(decoder_stack); | |
635 | assert(!decoder_stack->stack().empty()); | |
636 | assert(decoder_stack->stack().front()); | |
637 | decoder_stack->stack().front()->set_channels(channels); | |
638 | ||
639 | // Create the decode signal | |
640 | shared_ptr<data::SignalBase> signalbase = | |
641 | shared_ptr<data::SignalBase>(new data::SignalBase(nullptr)); | |
642 | ||
643 | signalbase->set_decoder_stack(decoder_stack); | |
644 | signalbases_.insert(signalbase); | |
645 | ||
646 | for (std::shared_ptr<views::ViewBase> view : views_) | |
647 | view->add_decode_signal(signalbase); | |
648 | } catch (std::runtime_error e) { | |
649 | return false; | |
650 | } | |
651 | ||
652 | signals_changed(); | |
653 | ||
654 | // Do an initial decode | |
655 | decoder_stack->begin_decode(); | |
656 | ||
657 | return true; | |
658 | } | |
659 | ||
660 | void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase) | |
661 | { | |
662 | signalbases_.erase(signalbase); | |
663 | ||
664 | for (std::shared_ptr<views::ViewBase> view : views_) | |
665 | view->remove_decode_signal(signalbase); | |
666 | ||
667 | signals_changed(); | |
668 | } | |
669 | #endif | |
670 | ||
671 | void Session::set_capture_state(capture_state state) | |
672 | { | |
673 | bool changed; | |
674 | ||
675 | { | |
676 | lock_guard<mutex> lock(sampling_mutex_); | |
677 | changed = capture_state_ != state; | |
678 | capture_state_ = state; | |
679 | } | |
680 | ||
681 | if (changed) | |
682 | capture_state_changed(state); | |
683 | } | |
684 | ||
685 | void Session::update_signals() | |
686 | { | |
687 | if (!device_) { | |
688 | signalbases_.clear(); | |
689 | logic_data_.reset(); | |
690 | for (std::shared_ptr<views::ViewBase> view : views_) { | |
691 | view->clear_signals(); | |
692 | #ifdef ENABLE_DECODE | |
693 | view->clear_decode_signals(); | |
694 | #endif | |
695 | } | |
696 | return; | |
697 | } | |
698 | ||
699 | lock_guard<recursive_mutex> lock(data_mutex_); | |
700 | ||
701 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
702 | if (!sr_dev) { | |
703 | signalbases_.clear(); | |
704 | logic_data_.reset(); | |
705 | for (std::shared_ptr<views::ViewBase> view : views_) { | |
706 | view->clear_signals(); | |
707 | #ifdef ENABLE_DECODE | |
708 | view->clear_decode_signals(); | |
709 | #endif | |
710 | } | |
711 | return; | |
712 | } | |
713 | ||
714 | // Detect what data types we will receive | |
715 | auto channels = sr_dev->channels(); | |
716 | unsigned int logic_channel_count = std::count_if( | |
717 | channels.begin(), channels.end(), | |
718 | [] (shared_ptr<Channel> channel) { | |
719 | return channel->type() == ChannelType::LOGIC; }); | |
720 | ||
721 | // Create data containers for the logic data segments | |
722 | { | |
723 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
724 | ||
725 | if (logic_channel_count == 0) { | |
726 | logic_data_.reset(); | |
727 | } else if (!logic_data_ || | |
728 | logic_data_->num_channels() != logic_channel_count) { | |
729 | logic_data_.reset(new data::Logic( | |
730 | logic_channel_count)); | |
731 | assert(logic_data_); | |
732 | } | |
733 | } | |
734 | ||
735 | // Make the signals list | |
736 | for (std::shared_ptr<views::ViewBase> viewbase : views_) { | |
737 | views::TraceView::View *trace_view = | |
738 | qobject_cast<views::TraceView::View*>(viewbase.get()); | |
739 | ||
740 | if (trace_view) { | |
741 | unordered_set< shared_ptr<views::TraceView::Signal> > | |
742 | prev_sigs(trace_view->signals()); | |
743 | trace_view->clear_signals(); | |
744 | ||
745 | for (auto channel : sr_dev->channels()) { | |
746 | shared_ptr<data::SignalBase> signalbase; | |
747 | shared_ptr<views::TraceView::Signal> signal; | |
748 | ||
749 | // Find the channel in the old signals | |
750 | const auto iter = std::find_if( | |
751 | prev_sigs.cbegin(), prev_sigs.cend(), | |
752 | [&](const shared_ptr<views::TraceView::Signal> &s) { | |
753 | return s->base()->channel() == channel; | |
754 | }); | |
755 | if (iter != prev_sigs.end()) { | |
756 | // Copy the signal from the old set to the new | |
757 | signal = *iter; | |
758 | trace_view->add_signal(signal); | |
759 | } else { | |
760 | // Find the signalbase for this channel if possible | |
761 | signalbase.reset(); | |
762 | for (const shared_ptr<data::SignalBase> b : signalbases_) | |
763 | if (b->channel() == channel) | |
764 | signalbase = b; | |
765 | ||
766 | switch(channel->type()->id()) { | |
767 | case SR_CHANNEL_LOGIC: | |
768 | if (!signalbase) { | |
769 | signalbase = shared_ptr<data::SignalBase>( | |
770 | new data::SignalBase(channel)); | |
771 | signalbases_.insert(signalbase); | |
772 | ||
773 | all_signal_data_.insert(logic_data_); | |
774 | signalbase->set_data(logic_data_); | |
775 | } | |
776 | ||
777 | signal = shared_ptr<views::TraceView::Signal>( | |
778 | new views::TraceView::LogicSignal(*this, | |
779 | device_, signalbase)); | |
780 | trace_view->add_signal(signal); | |
781 | break; | |
782 | ||
783 | case SR_CHANNEL_ANALOG: | |
784 | { | |
785 | if (!signalbase) { | |
786 | signalbase = shared_ptr<data::SignalBase>( | |
787 | new data::SignalBase(channel)); | |
788 | signalbases_.insert(signalbase); | |
789 | ||
790 | shared_ptr<data::Analog> data(new data::Analog()); | |
791 | all_signal_data_.insert(data); | |
792 | signalbase->set_data(data); | |
793 | } | |
794 | ||
795 | signal = shared_ptr<views::TraceView::Signal>( | |
796 | new views::TraceView::AnalogSignal( | |
797 | *this, signalbase)); | |
798 | trace_view->add_signal(signal); | |
799 | break; | |
800 | } | |
801 | ||
802 | default: | |
803 | assert(0); | |
804 | break; | |
805 | } | |
806 | } | |
807 | } | |
808 | } | |
809 | } | |
810 | ||
811 | signals_changed(); | |
812 | } | |
813 | ||
814 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
815 | shared_ptr<sigrok::Channel> channel) const | |
816 | { | |
817 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
818 | assert(sig); | |
819 | if (sig->channel() == channel) | |
820 | return sig; | |
821 | } | |
822 | return shared_ptr<data::SignalBase>(); | |
823 | } | |
824 | ||
825 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
826 | { | |
827 | assert(error_handler); | |
828 | ||
829 | if (!device_) | |
830 | return; | |
831 | ||
832 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
833 | ||
834 | out_of_memory_ = false; | |
835 | ||
836 | try { | |
837 | device_->start(); | |
838 | } catch (Error e) { | |
839 | error_handler(e.what()); | |
840 | return; | |
841 | } | |
842 | ||
843 | set_capture_state(device_->session()->trigger() ? | |
844 | AwaitingTrigger : Running); | |
845 | ||
846 | device_->run(); | |
847 | set_capture_state(Stopped); | |
848 | ||
849 | // Confirm that SR_DF_END was received | |
850 | if (cur_logic_segment_) { | |
851 | qDebug("SR_DF_END was not received."); | |
852 | assert(0); | |
853 | } | |
854 | ||
855 | if (out_of_memory_) | |
856 | error_handler(tr("Out of memory, acquisition stopped.")); | |
857 | } | |
858 | ||
859 | void Session::feed_in_header() | |
860 | { | |
861 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
862 | } | |
863 | ||
864 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
865 | { | |
866 | for (auto entry : meta->config()) { | |
867 | switch (entry.first->id()) { | |
868 | case SR_CONF_SAMPLERATE: | |
869 | // We can't rely on the header to always contain the sample rate, | |
870 | // so in case it's supplied via a meta packet, we use it. | |
871 | if (!cur_samplerate_) | |
872 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
873 | ||
874 | /// @todo handle samplerate changes | |
875 | break; | |
876 | default: | |
877 | // Unknown metadata is not an error. | |
878 | break; | |
879 | } | |
880 | } | |
881 | ||
882 | signals_changed(); | |
883 | } | |
884 | ||
885 | void Session::feed_in_trigger() | |
886 | { | |
887 | // The channel containing most samples should be most accurate | |
888 | uint64_t sample_count = 0; | |
889 | ||
890 | { | |
891 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
892 | assert(d); | |
893 | uint64_t temp_count = 0; | |
894 | ||
895 | const vector< shared_ptr<pv::data::Segment> > segments = | |
896 | d->segments(); | |
897 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
898 | temp_count += s->get_sample_count(); | |
899 | ||
900 | if (temp_count > sample_count) | |
901 | sample_count = temp_count; | |
902 | } | |
903 | } | |
904 | ||
905 | trigger_event(sample_count / get_samplerate()); | |
906 | } | |
907 | ||
908 | void Session::feed_in_frame_begin() | |
909 | { | |
910 | if (cur_logic_segment_ || !cur_analog_segments_.empty()) | |
911 | frame_began(); | |
912 | } | |
913 | ||
914 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
915 | { | |
916 | lock_guard<recursive_mutex> lock(data_mutex_); | |
917 | ||
918 | const size_t sample_count = logic->data_length() / logic->unit_size(); | |
919 | ||
920 | if (!logic_data_) { | |
921 | // The only reason logic_data_ would not have been created is | |
922 | // if it was not possible to determine the signals when the | |
923 | // device was created. | |
924 | update_signals(); | |
925 | } | |
926 | ||
927 | if (!cur_logic_segment_) { | |
928 | // This could be the first packet after a trigger | |
929 | set_capture_state(Running); | |
930 | ||
931 | // Create a new data segment | |
932 | cur_logic_segment_ = shared_ptr<data::LogicSegment>( | |
933 | new data::LogicSegment( | |
934 | logic, cur_samplerate_, sample_count)); | |
935 | logic_data_->push_segment(cur_logic_segment_); | |
936 | ||
937 | // @todo Putting this here means that only listeners querying | |
938 | // for logic will be notified. Currently the only user of | |
939 | // frame_began is DecoderStack, but in future we need to signal | |
940 | // this after both analog and logic sweeps have begun. | |
941 | frame_began(); | |
942 | } else { | |
943 | // Append to the existing data segment | |
944 | cur_logic_segment_->append_payload(logic); | |
945 | } | |
946 | ||
947 | data_received(); | |
948 | } | |
949 | ||
950 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
951 | { | |
952 | lock_guard<recursive_mutex> lock(data_mutex_); | |
953 | ||
954 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
955 | const unsigned int channel_count = channels.size(); | |
956 | const size_t sample_count = analog->num_samples() / channel_count; | |
957 | const float *data = static_cast<const float *>(analog->data_pointer()); | |
958 | bool sweep_beginning = false; | |
959 | ||
960 | if (signalbases_.empty()) | |
961 | update_signals(); | |
962 | ||
963 | for (auto channel : channels) { | |
964 | shared_ptr<data::AnalogSegment> segment; | |
965 | ||
966 | // Try to get the segment of the channel | |
967 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
968 | iterator iter = cur_analog_segments_.find(channel); | |
969 | if (iter != cur_analog_segments_.end()) | |
970 | segment = (*iter).second; | |
971 | else { | |
972 | // If no segment was found, this means we haven't | |
973 | // created one yet. i.e. this is the first packet | |
974 | // in the sweep containing this segment. | |
975 | sweep_beginning = true; | |
976 | ||
977 | // Create a segment, keep it in the maps of channels | |
978 | segment = shared_ptr<data::AnalogSegment>( | |
979 | new data::AnalogSegment( | |
980 | cur_samplerate_, sample_count)); | |
981 | cur_analog_segments_[channel] = segment; | |
982 | ||
983 | // Find the analog data associated with the channel | |
984 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
985 | assert(base); | |
986 | ||
987 | shared_ptr<data::Analog> data(base->analog_data()); | |
988 | assert(data); | |
989 | ||
990 | // Push the segment into the analog data. | |
991 | data->push_segment(segment); | |
992 | } | |
993 | ||
994 | assert(segment); | |
995 | ||
996 | // Append the samples in the segment | |
997 | segment->append_interleaved_samples(data++, sample_count, | |
998 | channel_count); | |
999 | } | |
1000 | ||
1001 | if (sweep_beginning) { | |
1002 | // This could be the first packet after a trigger | |
1003 | set_capture_state(Running); | |
1004 | } | |
1005 | ||
1006 | data_received(); | |
1007 | } | |
1008 | ||
1009 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
1010 | shared_ptr<Packet> packet) | |
1011 | { | |
1012 | (void)device; | |
1013 | ||
1014 | assert(device); | |
1015 | assert(device == device_->device()); | |
1016 | assert(packet); | |
1017 | ||
1018 | switch (packet->type()->id()) { | |
1019 | case SR_DF_HEADER: | |
1020 | feed_in_header(); | |
1021 | break; | |
1022 | ||
1023 | case SR_DF_META: | |
1024 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
1025 | break; | |
1026 | ||
1027 | case SR_DF_TRIGGER: | |
1028 | feed_in_trigger(); | |
1029 | break; | |
1030 | ||
1031 | case SR_DF_FRAME_BEGIN: | |
1032 | feed_in_frame_begin(); | |
1033 | break; | |
1034 | ||
1035 | case SR_DF_LOGIC: | |
1036 | try { | |
1037 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
1038 | } catch (std::bad_alloc) { | |
1039 | out_of_memory_ = true; | |
1040 | device_->stop(); | |
1041 | } | |
1042 | break; | |
1043 | ||
1044 | case SR_DF_ANALOG: | |
1045 | try { | |
1046 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
1047 | } catch (std::bad_alloc) { | |
1048 | out_of_memory_ = true; | |
1049 | device_->stop(); | |
1050 | } | |
1051 | break; | |
1052 | ||
1053 | case SR_DF_END: | |
1054 | { | |
1055 | { | |
1056 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1057 | cur_logic_segment_.reset(); | |
1058 | cur_analog_segments_.clear(); | |
1059 | } | |
1060 | frame_ended(); | |
1061 | break; | |
1062 | } | |
1063 | default: | |
1064 | break; | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | } // namespace pv |