2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
5 * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "analogsegment.hpp"
23 #include "decode/row.hpp"
25 #include "logicsegment.hpp"
26 #include "signalbase.hpp"
27 #include "signaldata.hpp"
31 #include <pv/binding/decoder.hpp>
32 #include <pv/session.hpp>
34 using std::dynamic_pointer_cast;
35 using std::make_shared;
36 using std::out_of_range;
37 using std::shared_ptr;
39 using std::unique_lock;
44 const int SignalBase::ColorBGAlpha = 8 * 256 / 100;
45 const uint64_t SignalBase::ConversionBlockSize = 4096;
46 const uint32_t SignalBase::ConversionDelay = 1000; // 1 second
48 SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
50 channel_type_(channel_type),
51 conversion_type_(NoConversion),
56 internal_name_ = QString::fromStdString(channel_->name());
58 connect(&delayed_conversion_starter_, SIGNAL(timeout()),
59 this, SLOT(on_delayed_conversion_start()));
60 delayed_conversion_starter_.setSingleShot(true);
61 delayed_conversion_starter_.setInterval(ConversionDelay);
64 SignalBase::~SignalBase()
69 shared_ptr<sigrok::Channel> SignalBase::channel() const
74 QString SignalBase::name() const
76 return (channel_) ? QString::fromStdString(channel_->name()) : name_;
79 QString SignalBase::internal_name() const
81 return internal_name_;
84 QString SignalBase::display_name() const
86 if (name() != internal_name_)
87 return name() + " (" + internal_name_ + ")";
92 void SignalBase::set_name(QString name)
95 channel_->set_name(name.toUtf8().constData());
102 bool SignalBase::enabled() const
104 return (channel_) ? channel_->enabled() : true;
107 void SignalBase::set_enabled(bool value)
110 channel_->set_enabled(value);
111 enabled_changed(value);
115 SignalBase::ChannelType SignalBase::type() const
117 return channel_type_;
120 unsigned int SignalBase::index() const
122 return (channel_) ? channel_->index() : 0;
125 unsigned int SignalBase::logic_bit_index() const
127 if (channel_type_ == LogicChannel)
128 return channel_->index();
133 QColor SignalBase::color() const
138 void SignalBase::set_color(QColor color)
143 bgcolor_.setAlpha(ColorBGAlpha);
145 color_changed(color);
148 QColor SignalBase::bgcolor() const
153 void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
156 disconnect(data.get(), SIGNAL(samples_cleared()),
157 this, SLOT(on_samples_cleared()));
158 disconnect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
159 this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
161 if (channel_type_ == AnalogChannel) {
162 shared_ptr<Analog> analog = analog_data();
165 disconnect(analog.get(), SIGNAL(min_max_changed(float, float)),
166 this, SLOT(on_min_max_changed(float, float)));
173 connect(data.get(), SIGNAL(samples_cleared()),
174 this, SLOT(on_samples_cleared()));
175 connect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
176 this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
178 if (channel_type_ == AnalogChannel) {
179 shared_ptr<Analog> analog = analog_data();
182 connect(analog.get(), SIGNAL(min_max_changed(float, float)),
183 this, SLOT(on_min_max_changed(float, float)));
188 shared_ptr<data::Analog> SignalBase::analog_data() const
190 shared_ptr<Analog> result = nullptr;
192 if (channel_type_ == AnalogChannel)
193 result = dynamic_pointer_cast<Analog>(data_);
198 shared_ptr<data::Logic> SignalBase::logic_data() const
200 shared_ptr<Logic> result = nullptr;
202 if (channel_type_ == LogicChannel)
203 result = dynamic_pointer_cast<Logic>(data_);
205 if (((conversion_type_ == A2LConversionByThreshold) ||
206 (conversion_type_ == A2LConversionBySchmittTrigger)))
207 result = dynamic_pointer_cast<Logic>(converted_data_);
212 bool SignalBase::segment_is_complete(uint32_t segment_id) const
216 if (channel_type_ == AnalogChannel)
218 shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
219 auto segments = data->analog_segments();
221 result = segments.at(segment_id)->is_complete();
222 } catch (out_of_range&) {
227 if (channel_type_ == LogicChannel)
229 shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
230 auto segments = data->logic_segments();
232 result = segments.at(segment_id)->is_complete();
233 } catch (out_of_range&) {
241 bool SignalBase::has_samples() const
245 if (channel_type_ == AnalogChannel)
247 shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
249 auto segments = data->analog_segments();
250 if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
255 if (channel_type_ == LogicChannel)
257 shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
259 auto segments = data->logic_segments();
260 if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
268 SignalBase::ConversionType SignalBase::get_conversion_type() const
270 return conversion_type_;
273 void SignalBase::set_conversion_type(ConversionType t)
275 if (conversion_type_ != NoConversion) {
278 // Discard converted data
279 converted_data_.reset();
283 conversion_type_ = t;
285 // Re-create an empty container
286 // so that the signal is recognized as providing logic data
287 // and thus can be assigned to a decoder
288 if (conversion_is_a2l())
289 if (!converted_data_)
290 converted_data_ = make_shared<Logic>(1); // Contains only one channel
294 conversion_type_changed(t);
297 map<QString, QVariant> SignalBase::get_conversion_options() const
299 return conversion_options_;
302 bool SignalBase::set_conversion_option(QString key, QVariant value)
306 auto key_iter = conversion_options_.find(key);
307 if (key_iter != conversion_options_.end())
308 old_value = key_iter->second;
310 conversion_options_[key] = value;
312 return (value != old_value);
315 vector<double> SignalBase::get_conversion_thresholds(const ConversionType t,
316 const bool always_custom) const
318 vector<double> result;
319 ConversionType conv_type = t;
320 ConversionPreset preset;
322 // Use currently active conversion if no conversion type was supplied
323 if (conv_type == NoConversion)
324 conv_type = conversion_type_;
329 preset = get_current_conversion_preset();
331 if (conv_type == A2LConversionByThreshold) {
334 if (preset == NoPreset) {
335 auto thr_iter = conversion_options_.find("threshold_value");
336 if (thr_iter != conversion_options_.end())
337 thr = (thr_iter->second).toDouble();
340 if (preset == DynamicPreset)
341 thr = (min_value_ + max_value_) * 0.5; // middle between min and max
343 if ((int)preset == 1) thr = 0.9;
344 if ((int)preset == 2) thr = 1.8;
345 if ((int)preset == 3) thr = 2.5;
346 if ((int)preset == 4) thr = 1.5;
348 result.push_back(thr);
351 if (conv_type == A2LConversionBySchmittTrigger) {
352 double thr_lo = 0, thr_hi = 0;
354 if (preset == NoPreset) {
355 auto thr_lo_iter = conversion_options_.find("threshold_value_low");
356 if (thr_lo_iter != conversion_options_.end())
357 thr_lo = (thr_lo_iter->second).toDouble();
359 auto thr_hi_iter = conversion_options_.find("threshold_value_high");
360 if (thr_hi_iter != conversion_options_.end())
361 thr_hi = (thr_hi_iter->second).toDouble();
364 if (preset == DynamicPreset) {
365 const double amplitude = max_value_ - min_value_;
366 const double center = min_value_ + (amplitude / 2);
367 thr_lo = center - (amplitude * 0.15); // 15% margin
368 thr_hi = center + (amplitude * 0.15); // 15% margin
371 if ((int)preset == 1) { thr_lo = 0.3; thr_hi = 1.2; }
372 if ((int)preset == 2) { thr_lo = 0.7; thr_hi = 2.5; }
373 if ((int)preset == 3) { thr_lo = 1.3; thr_hi = 3.7; }
374 if ((int)preset == 4) { thr_lo = 0.8; thr_hi = 2.0; }
376 result.push_back(thr_lo);
377 result.push_back(thr_hi);
383 vector< pair<QString, int> > SignalBase::get_conversion_presets() const
385 vector< pair<QString, int> > presets;
387 if (conversion_type_ == A2LConversionByThreshold) {
388 // Source: http://www.interfacebus.com/voltage_threshold.html
389 presets.emplace_back(tr("Signal average"), 0);
390 presets.emplace_back(tr("0.9V (for 1.8V CMOS)"), 1);
391 presets.emplace_back(tr("1.8V (for 3.3V CMOS)"), 2);
392 presets.emplace_back(tr("2.5V (for 5.0V CMOS)"), 3);
393 presets.emplace_back(tr("1.5V (for TTL)"), 4);
396 if (conversion_type_ == A2LConversionBySchmittTrigger) {
397 // Source: http://www.interfacebus.com/voltage_threshold.html
398 presets.emplace_back(tr("Signal average +/- 15%"), 0);
399 presets.emplace_back(tr("0.3V/1.2V (for 1.8V CMOS)"), 1);
400 presets.emplace_back(tr("0.7V/2.5V (for 3.3V CMOS)"), 2);
401 presets.emplace_back(tr("1.3V/3.7V (for 5.0V CMOS)"), 3);
402 presets.emplace_back(tr("0.8V/2.0V (for TTL)"), 4);
408 SignalBase::ConversionPreset SignalBase::get_current_conversion_preset() const
410 auto preset = conversion_options_.find("preset");
411 if (preset != conversion_options_.end())
412 return (ConversionPreset)((preset->second).toInt());
414 return DynamicPreset;
417 void SignalBase::set_conversion_preset(ConversionPreset id)
419 conversion_options_["preset"] = (int)id;
423 bool SignalBase::is_decode_signal() const
425 return (channel_type_ == DecodeChannel);
429 void SignalBase::save_settings(QSettings &settings) const
431 settings.setValue("name", name());
432 settings.setValue("enabled", enabled());
433 settings.setValue("color", color());
434 settings.setValue("conversion_type", (int)conversion_type_);
436 settings.setValue("conv_options", (int)(conversion_options_.size()));
438 for (auto kvp : conversion_options_) {
439 settings.setValue(QString("conv_option%1_key").arg(i), kvp.first);
440 settings.setValue(QString("conv_option%1_value").arg(i), kvp.second);
445 void SignalBase::restore_settings(QSettings &settings)
447 if (settings.contains("name"))
448 set_name(settings.value("name").toString());
450 if (settings.contains("enabled"))
451 set_enabled(settings.value("enabled").toBool());
453 if (settings.contains("color"))
454 set_color(settings.value("color").value<QColor>());
456 if (settings.contains("conversion_type"))
457 set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
459 int conv_options = 0;
460 if (settings.contains("conv_options"))
461 conv_options = settings.value("conv_options").toInt();
464 for (int i = 0; i < conv_options; i++) {
465 const QString key_id = QString("conv_option%1_key").arg(i);
466 const QString value_id = QString("conv_option%1_value").arg(i);
468 if (settings.contains(key_id) && settings.contains(value_id))
469 conversion_options_[settings.value(key_id).toString()] =
470 settings.value(value_id);
474 bool SignalBase::conversion_is_a2l() const
476 return ((channel_type_ == AnalogChannel) &&
477 ((conversion_type_ == A2LConversionByThreshold) ||
478 (conversion_type_ == A2LConversionBySchmittTrigger)));
481 void SignalBase::convert_single_segment_range(AnalogSegment *asegment,
482 LogicSegment *lsegment, uint64_t start_sample, uint64_t end_sample)
484 if (end_sample > start_sample) {
485 tie(min_value_, max_value_) = asegment->get_min_max();
487 // Create sigrok::Analog instance
488 float *asamples = new float[ConversionBlockSize];
489 uint8_t *lsamples = new uint8_t[ConversionBlockSize];
491 vector<shared_ptr<sigrok::Channel> > channels;
492 channels.push_back(channel_);
494 vector<const sigrok::QuantityFlag*> mq_flags;
495 const sigrok::Quantity * const mq = sigrok::Quantity::VOLTAGE;
496 const sigrok::Unit * const unit = sigrok::Unit::VOLT;
498 shared_ptr<sigrok::Packet> packet =
499 Session::sr_context->create_analog_packet(channels,
500 asamples, ConversionBlockSize, mq, unit, mq_flags);
502 shared_ptr<sigrok::Analog> analog =
503 dynamic_pointer_cast<sigrok::Analog>(packet->payload());
506 uint64_t i = start_sample;
508 if (conversion_type_ == A2LConversionByThreshold) {
509 const double threshold = get_conversion_thresholds()[0];
511 // Convert as many sample blocks as we can
512 while ((end_sample - i) > ConversionBlockSize) {
513 asegment->get_samples(i, i + ConversionBlockSize, asamples);
515 shared_ptr<sigrok::Logic> logic =
516 analog->get_logic_via_threshold(threshold, lsamples);
518 lsegment->append_payload(logic->data_pointer(), logic->data_length());
519 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
520 i += ConversionBlockSize;
523 // Re-create sigrok::Analog and convert remaining samples
524 packet = Session::sr_context->create_analog_packet(channels,
525 asamples, end_sample - i, mq, unit, mq_flags);
527 analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
529 asegment->get_samples(i, end_sample, asamples);
530 shared_ptr<sigrok::Logic> logic =
531 analog->get_logic_via_threshold(threshold, lsamples);
532 lsegment->append_payload(logic->data_pointer(), logic->data_length());
533 samples_added(lsegment->segment_id(), i, end_sample);
536 if (conversion_type_ == A2LConversionBySchmittTrigger) {
537 const vector<double> thresholds = get_conversion_thresholds();
538 const double lo_thr = thresholds[0];
539 const double hi_thr = thresholds[1];
541 uint8_t state = 0; // TODO Use value of logic sample n-1 instead of 0
543 // Convert as many sample blocks as we can
544 while ((end_sample - i) > ConversionBlockSize) {
545 asegment->get_samples(i, i + ConversionBlockSize, asamples);
547 shared_ptr<sigrok::Logic> logic =
548 analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
551 lsegment->append_payload(logic->data_pointer(), logic->data_length());
552 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
553 i += ConversionBlockSize;
556 // Re-create sigrok::Analog and convert remaining samples
557 packet = Session::sr_context->create_analog_packet(channels,
558 asamples, end_sample - i, mq, unit, mq_flags);
560 analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
562 asegment->get_samples(i, end_sample, asamples);
563 shared_ptr<sigrok::Logic> logic =
564 analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
566 lsegment->append_payload(logic->data_pointer(), logic->data_length());
567 samples_added(lsegment->segment_id(), i, end_sample);
570 // If acquisition is ongoing, start-/endsample may have changed
571 end_sample = asegment->get_sample_count();
578 void SignalBase::convert_single_segment(AnalogSegment *asegment, LogicSegment *lsegment)
580 uint64_t start_sample, end_sample, old_end_sample;
581 start_sample = end_sample = 0;
582 bool complete_state, old_complete_state;
584 start_sample = lsegment->get_sample_count();
585 end_sample = asegment->get_sample_count();
586 complete_state = asegment->is_complete();
588 // Don't do anything if the segment is still being filled and the sample count is too small
589 if ((!complete_state) && (end_sample - start_sample < ConversionBlockSize))
593 convert_single_segment_range(asegment, lsegment, start_sample, end_sample);
595 old_end_sample = end_sample;
596 old_complete_state = complete_state;
598 start_sample = lsegment->get_sample_count();
599 end_sample = asegment->get_sample_count();
600 complete_state = asegment->is_complete();
602 // If the segment has been incomplete when we were called and has been
603 // completed in the meanwhile, we convert the remaining samples as well.
604 // Also, if a sufficient number of samples was added in the meanwhile,
605 // we do another round of sample conversion.
606 } while ((complete_state != old_complete_state) ||
607 (end_sample - old_end_sample >= ConversionBlockSize));
610 void SignalBase::conversion_thread_proc()
612 shared_ptr<Analog> analog_data;
614 if (conversion_is_a2l()) {
615 analog_data = dynamic_pointer_cast<Analog>(data_);
617 if (analog_data->analog_segments().size() == 0) {
618 unique_lock<mutex> input_lock(conversion_input_mutex_);
619 conversion_input_cond_.wait(input_lock);
623 // Currently, we only handle A2L conversions
626 // If we had to wait for input data, we may have been notified to terminate
627 if (conversion_interrupt_)
630 uint32_t segment_id = 0;
632 AnalogSegment *asegment = analog_data->analog_segments().front().get();
635 const shared_ptr<Logic> logic_data = dynamic_pointer_cast<Logic>(converted_data_);
638 // Create the initial logic data segment if needed
639 if (logic_data->logic_segments().size() == 0) {
640 shared_ptr<LogicSegment> new_segment =
641 make_shared<LogicSegment>(*logic_data.get(), 0, 1, asegment->samplerate());
642 logic_data->push_segment(new_segment);
645 LogicSegment *lsegment = logic_data->logic_segments().front().get();
649 convert_single_segment(asegment, lsegment);
651 // Only advance to next segment if the current input segment is complete
652 if (asegment->is_complete() &&
653 analog_data->analog_segments().size() > logic_data->logic_segments().size()) {
654 // There are more segments to process
658 asegment = analog_data->analog_segments().at(segment_id).get();
659 } catch (out_of_range&) {
660 qDebug() << "Conversion error for" << name() << ": no analog segment" \
661 << segment_id << ", segments size is" << analog_data->analog_segments().size();
665 shared_ptr<LogicSegment> new_segment = make_shared<LogicSegment>(
666 *logic_data.get(), segment_id, 1, asegment->samplerate());
667 logic_data->push_segment(new_segment);
669 lsegment = logic_data->logic_segments().back().get();
671 // No more samples/segments to process, wait for data or interrupt
672 if (!conversion_interrupt_) {
673 unique_lock<mutex> input_lock(conversion_input_mutex_);
674 conversion_input_cond_.wait(input_lock);
677 } while (!conversion_interrupt_);
680 void SignalBase::start_conversion(bool delayed_start)
683 delayed_conversion_starter_.start();
690 converted_data_->clear();
693 conversion_interrupt_ = false;
694 conversion_thread_ = std::thread(
695 &SignalBase::conversion_thread_proc, this);
698 void SignalBase::stop_conversion()
700 // Stop conversion so we can restart it from the beginning
701 conversion_interrupt_ = true;
702 conversion_input_cond_.notify_one();
703 if (conversion_thread_.joinable())
704 conversion_thread_.join();
707 void SignalBase::on_samples_cleared()
710 converted_data_->clear();
715 void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
718 if (conversion_type_ != NoConversion) {
719 if (conversion_thread_.joinable()) {
720 // Notify the conversion thread since it's running
721 conversion_input_cond_.notify_one();
723 // Start the conversion thread unless the delay timer is running
724 if (!delayed_conversion_starter_.isActive())
729 data::Segment* s = qobject_cast<data::Segment*>(segment);
730 samples_added(s->segment_id(), start_sample, end_sample);
733 void SignalBase::on_min_max_changed(float min, float max)
735 // Restart conversion if one is enabled and uses a calculated threshold
736 if ((conversion_type_ != NoConversion) &&
737 (get_current_conversion_preset() == DynamicPreset))
738 start_conversion(true);
740 min_max_changed(min, max);
743 void SignalBase::on_capture_state_changed(int state)
745 if (state == Session::Running) {
746 // Restart conversion if one is enabled
747 if (conversion_type_ != NoConversion)
752 void SignalBase::on_delayed_conversion_start()