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/>.
21 #ifndef PULSEVIEW_PV_DATA_SIGNALBASE_HPP
22 #define PULSEVIEW_PV_DATA_SIGNALBASE_HPP
25 #include <condition_variable>
36 #include <libsigrokcxx/libsigrokcxx.hpp>
39 using std::condition_variable;
43 using std::shared_ptr;
61 class SignalBase : public QObject
67 AnalogChannel = 1, ///< Analog data
68 LogicChannel, ///< Logic data
69 DecodeChannel, ///< Protocol Decoder channel using libsigrokdecode
70 MathChannel ///< Virtual channel generated by math operations
75 A2LConversionByThreshold = 1,
76 A2LConversionBySchmittTrigger = 2
80 * Conversion presets range from -1 to n, where 1..n are dependent on
81 * the conversion these presets apply to. -1 and 0 have fixed meanings,
84 enum ConversionPreset {
85 NoPreset = -1, ///< Conversion uses custom values
86 DynamicPreset = 0 ///< Conversion uses calculated values
90 static const int ColorBGAlpha;
91 static const uint64_t ConversionBlockSize;
92 static const uint32_t ConversionDelay;
95 SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type);
96 virtual ~SignalBase();
100 * Returns the underlying SR channel.
102 shared_ptr<sigrok::Channel> channel() const;
105 * Returns enabled status of this channel.
107 bool enabled() const;
110 * Sets the enabled status of this channel.
111 * @param value Boolean value to set.
113 void set_enabled(bool value);
116 * Gets the type of this channel.
118 ChannelType type() const;
121 * Gets the index number of this channel, i.e. a unique ID assigned by
124 unsigned int index() const;
127 * Returns which bit of a given sample for this signal represents the
128 * signal itself. This is relevant for compound signals like logic,
129 * rather meaningless for everything else but provided in case there
130 * is a conversion active that provides a digital signal using bit #0.
132 unsigned int logic_bit_index() const;
135 * Gets the name of this signal.
137 QString name() const;
140 * Gets the internal name of this signal, i.e. how the device calls it.
142 QString internal_name() const;
145 * Produces a string for this signal that can be used for display,
146 * i.e. it contains one or both of the signal/internal names.
148 QString display_name() const;
151 * Sets the name of the signal.
153 virtual void set_name(QString name);
156 * Get the color of the signal.
158 QColor color() const;
161 * Set the color of the signal.
163 void set_color(QColor color);
166 * Get the background color of the signal.
168 QColor bgcolor() const;
171 * Sets the internal data object.
173 void set_data(shared_ptr<pv::data::SignalData> data);
176 * Clears all sample data and removes all associated segments.
178 void clear_sample_data();
181 * Get the internal data as analog data object in case of analog type.
183 shared_ptr<pv::data::Analog> analog_data() const;
186 * Get the internal data as logic data object in case of logic type.
188 shared_ptr<pv::data::Logic> logic_data() const;
191 * Determines whether a given segment is complete (i.e. end-of-frame has
192 * been seen). It only considers the original data, not the converted data.
194 bool segment_is_complete(uint32_t segment_id) const;
197 * Determines whether this signal has any sample data at all.
199 bool has_samples() const;
202 * Returns the sample rate for this signal.
204 virtual double get_samplerate() const;
207 * Queries the kind of conversion performed on this channel.
209 ConversionType get_conversion_type() const;
212 * Changes the kind of conversion performed on this channel.
214 * Restarts the conversion.
216 void set_conversion_type(ConversionType t);
219 * Returns all currently known conversion options
221 map<QString, QVariant> get_conversion_options() const;
224 * Sets the value of a particular conversion option
225 * Note: it is not checked whether the option is valid for the
226 * currently conversion. If it's not, it will be silently ignored.
228 * Does not restart the conversion.
230 * @return true if the value is different from before, false otherwise
232 bool set_conversion_option(QString key, QVariant value);
235 * Returns the threshold(s) used for conversions, if applicable.
236 * The resulting thresholds are given for the chosen conversion, so you
237 * can query thresholds also for conversions which aren't currently active.
239 * If you want the thresholds for the currently active conversion,
240 * call it either with NoConversion or no parameter.
242 * @param t the type of conversion to obtain the thresholds for, leave
243 * empty or use NoConversion if you want to query the currently
246 * @param always_custom ignore the currently selected preset and always
247 * return the custom values for this conversion, using 0 if those
250 * @return a list of threshold(s) used by the chosen conversion
252 vector<double> get_conversion_thresholds(
253 const ConversionType t = NoConversion, const bool always_custom=false) const;
256 * Provides all conversion presets available for the currently active
259 * @return a list of description/ID pairs for each preset
261 vector<pair<QString, int> > get_conversion_presets() const;
264 * Determines the ID of the currently used conversion preset, which is only
265 * valid for the currently available conversion presets. It is therefore
266 * suggested to call @ref get_conversion_presets right before calling this.
268 * @return the ID of the currently used conversion preset. -1 if no preset
269 * is used. In that case, a user setting is used instead.
271 ConversionPreset get_current_conversion_preset() const;
274 * Sets the conversion preset to be used.
276 * Does not restart the conversion.
278 * @param id the id of the preset to use
280 void set_conversion_preset(ConversionPreset id);
283 bool is_decode_signal() const;
286 virtual void save_settings(QSettings &settings) const;
288 virtual void restore_settings(QSettings &settings);
290 void start_conversion(bool delayed_start=false);
293 bool conversion_is_a2l() const;
295 uint8_t convert_a2l_threshold(float threshold, float value);
296 uint8_t convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
297 float value, uint8_t &state);
299 void convert_single_segment_range(AnalogSegment *asegment,
300 LogicSegment *lsegment, uint64_t start_sample, uint64_t end_sample);
301 void convert_single_segment(pv::data::AnalogSegment *asegment,
302 pv::data::LogicSegment *lsegment);
303 void conversion_thread_proc();
305 void stop_conversion();
308 void enabled_changed(const bool &value);
310 void name_changed(const QString &name);
312 void color_changed(const QColor &color);
314 void conversion_type_changed(const ConversionType t);
316 void samples_cleared();
318 void samples_added(uint64_t segment_id, uint64_t start_sample,
319 uint64_t end_sample);
321 void min_max_changed(float min, float max);
324 void on_samples_cleared();
326 void on_samples_added(shared_ptr<Segment> segment, uint64_t start_sample,
327 uint64_t end_sample);
329 void on_min_max_changed(float min, float max);
331 void on_capture_state_changed(int state);
333 void on_delayed_conversion_start();
336 shared_ptr<sigrok::Channel> channel_;
337 ChannelType channel_type_;
338 shared_ptr<pv::data::SignalData> data_;
339 shared_ptr<pv::data::SignalData> converted_data_;
340 ConversionType conversion_type_;
341 map<QString, QVariant> conversion_options_;
343 float min_value_, max_value_;
345 std::thread conversion_thread_;
346 atomic<bool> conversion_interrupt_;
347 mutex conversion_input_mutex_;
348 condition_variable conversion_input_cond_;
349 QTimer delayed_conversion_starter_;
351 QString internal_name_, name_;
352 QColor color_, bgcolor_;
358 #endif // PULSEVIEW_PV_DATA_SIGNALBASE_HPP