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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net> | |
6 | * | |
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. | |
11 | * | |
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. | |
16 | * | |
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/>. | |
19 | */ | |
20 | ||
21 | #ifndef PULSEVIEW_PV_DATA_SIGNALBASE_HPP | |
22 | #define PULSEVIEW_PV_DATA_SIGNALBASE_HPP | |
23 | ||
24 | #include <atomic> | |
25 | #include <deque> | |
26 | #include <condition_variable> | |
27 | #include <thread> | |
28 | #include <vector> | |
29 | ||
30 | #include <QColor> | |
31 | #include <QObject> | |
32 | #include <QSettings> | |
33 | #include <QString> | |
34 | #include <QTimer> | |
35 | #include <QVariant> | |
36 | ||
37 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
38 | ||
39 | #include "segment.hpp" | |
40 | ||
41 | using std::atomic; | |
42 | using std::condition_variable; | |
43 | using std::deque; | |
44 | using std::enable_shared_from_this; | |
45 | using std::map; | |
46 | using std::mutex; | |
47 | using std::pair; | |
48 | using std::shared_ptr; | |
49 | using std::vector; | |
50 | ||
51 | namespace sigrok { | |
52 | class Channel; | |
53 | } | |
54 | ||
55 | namespace pv { | |
56 | namespace data { | |
57 | ||
58 | class Analog; | |
59 | class AnalogSegment; | |
60 | class DecoderStack; | |
61 | class Logic; | |
62 | class LogicSegment; | |
63 | class Segment; | |
64 | class SignalBase; | |
65 | class SignalData; | |
66 | ||
67 | class SignalGroup : public QObject | |
68 | { | |
69 | Q_OBJECT | |
70 | ||
71 | public: | |
72 | SignalGroup(const QString& name); | |
73 | ||
74 | void append_signal(shared_ptr<SignalBase> signal); | |
75 | void remove_signal(shared_ptr<SignalBase> signal); | |
76 | deque<shared_ptr<SignalBase>> signals() const; | |
77 | void clear(); | |
78 | ||
79 | const QString name() const; | |
80 | ||
81 | private: | |
82 | deque<shared_ptr<SignalBase>> signals_; | |
83 | QString name_; | |
84 | }; | |
85 | ||
86 | ||
87 | class SignalBase : public QObject, public enable_shared_from_this<SignalBase> | |
88 | { | |
89 | Q_OBJECT | |
90 | ||
91 | public: | |
92 | enum ChannelType { | |
93 | AnalogChannel = 1, ///< Analog data | |
94 | LogicChannel, ///< Logic data | |
95 | DecodeChannel, ///< Protocol Decoder channel using libsigrokdecode | |
96 | MathChannel ///< Virtual channel generated by math operations | |
97 | }; | |
98 | ||
99 | enum ConversionType { | |
100 | NoConversion = 0, | |
101 | A2LConversionByThreshold = 1, | |
102 | A2LConversionBySchmittTrigger = 2 | |
103 | }; | |
104 | ||
105 | /** | |
106 | * Conversion presets range from -1 to n, where 1..n are dependent on | |
107 | * the conversion these presets apply to. -1 and 0 have fixed meanings, | |
108 | * however. | |
109 | */ | |
110 | enum ConversionPreset { | |
111 | NoPreset = -1, ///< Conversion uses custom values | |
112 | DynamicPreset = 0 ///< Conversion uses calculated values | |
113 | }; | |
114 | ||
115 | private: | |
116 | static const int ColorBGAlpha; | |
117 | static const uint64_t ConversionBlockSize; | |
118 | static const uint32_t ConversionDelay; | |
119 | ||
120 | public: | |
121 | SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type); | |
122 | virtual ~SignalBase(); | |
123 | ||
124 | public: | |
125 | /** | |
126 | * Returns the underlying SR channel. | |
127 | * Generated channels don't have a SR channel. | |
128 | */ | |
129 | shared_ptr<sigrok::Channel> channel() const; | |
130 | ||
131 | /** | |
132 | * Returns enabled status of this channel. | |
133 | */ | |
134 | bool enabled() const; | |
135 | ||
136 | /** | |
137 | * Sets the enabled status of this channel. | |
138 | * @param value Boolean value to set. | |
139 | */ | |
140 | void set_enabled(bool value); | |
141 | ||
142 | /** | |
143 | * Gets the type of this channel. | |
144 | */ | |
145 | ChannelType type() const; | |
146 | ||
147 | /** | |
148 | * Gets the index number of this channel, i.e. a unique ID assigned by | |
149 | * the device driver. | |
150 | */ | |
151 | unsigned int index() const; | |
152 | ||
153 | /** | |
154 | * Sets the index number of this channel, i.e. a unique ID assigned by | |
155 | * the device driver or the logic bit index (see below). | |
156 | * Only use immediately after creating the signal and leave it untouched after. | |
157 | */ | |
158 | void set_index(unsigned int index); | |
159 | ||
160 | /** | |
161 | * Returns which bit of a given sample for this signal represents the | |
162 | * signal itself. This is relevant for compound signals like logic, | |
163 | * rather meaningless for everything else but provided in case there | |
164 | * is a conversion active that provides a digital signal using bit #0. | |
165 | */ | |
166 | unsigned int logic_bit_index() const; | |
167 | ||
168 | /** | |
169 | * Sets the signal group this signal belongs to | |
170 | */ | |
171 | void set_group(SignalGroup* group); | |
172 | ||
173 | /** | |
174 | * Returns the signal group this signal belongs to or nullptr if none | |
175 | */ | |
176 | SignalGroup* group() const; | |
177 | ||
178 | /** | |
179 | * Gets the name of this signal. | |
180 | */ | |
181 | QString name() const; | |
182 | ||
183 | /** | |
184 | * Gets the internal name of this signal, i.e. how the device/generator calls it. | |
185 | */ | |
186 | QString internal_name() const; | |
187 | ||
188 | /** | |
189 | * Sets the internal name of this signal, i.e. how the device/generator calls it. | |
190 | * Only use immediately after creating the signal and leave it untouched after. | |
191 | */ | |
192 | void set_internal_name(QString internal_name); | |
193 | ||
194 | /** | |
195 | * Produces a string for this signal that can be used for display, | |
196 | * i.e. it contains one or both of the signal/internal names. | |
197 | */ | |
198 | QString display_name() const; | |
199 | ||
200 | /** | |
201 | * Sets the name of the signal. | |
202 | */ | |
203 | virtual void set_name(QString name); | |
204 | ||
205 | /** | |
206 | * Get the color of the signal. | |
207 | */ | |
208 | QColor color() const; | |
209 | ||
210 | /** | |
211 | * Set the color of the signal. | |
212 | */ | |
213 | void set_color(QColor color); | |
214 | ||
215 | /** | |
216 | * Get the background color of the signal. | |
217 | */ | |
218 | QColor bgcolor() const; | |
219 | ||
220 | /** | |
221 | * Sets the internal data object. | |
222 | */ | |
223 | void set_data(shared_ptr<pv::data::SignalData> data); | |
224 | ||
225 | /** | |
226 | * Clears all sample data and removes all associated segments. | |
227 | */ | |
228 | void clear_sample_data(); | |
229 | ||
230 | /** | |
231 | * Get the internal data as analog data object in case of analog type. | |
232 | */ | |
233 | shared_ptr<pv::data::Analog> analog_data() const; | |
234 | ||
235 | /** | |
236 | * Get the internal data as logic data object in case of logic type. | |
237 | */ | |
238 | shared_ptr<pv::data::Logic> logic_data() const; | |
239 | ||
240 | /** | |
241 | * Determines whether a given segment is complete (i.e. end-of-frame has | |
242 | * been seen). It only considers the original data, not the converted data. | |
243 | */ | |
244 | bool segment_is_complete(uint32_t segment_id) const; | |
245 | ||
246 | /** | |
247 | * Determines whether this signal has any sample data at all. | |
248 | */ | |
249 | bool has_samples() const; | |
250 | ||
251 | /** | |
252 | * Returns the sample rate for this signal. | |
253 | */ | |
254 | virtual double get_samplerate() const; | |
255 | ||
256 | /** | |
257 | * Queries the kind of conversion performed on this channel. | |
258 | */ | |
259 | ConversionType get_conversion_type() const; | |
260 | ||
261 | /** | |
262 | * Changes the kind of conversion performed on this channel. | |
263 | * | |
264 | * Restarts the conversion. | |
265 | */ | |
266 | void set_conversion_type(ConversionType t); | |
267 | ||
268 | /** | |
269 | * Returns all currently known conversion options | |
270 | */ | |
271 | map<QString, QVariant> get_conversion_options() const; | |
272 | ||
273 | /** | |
274 | * Sets the value of a particular conversion option | |
275 | * Note: it is not checked whether the option is valid for the | |
276 | * currently conversion. If it's not, it will be silently ignored. | |
277 | * | |
278 | * Does not restart the conversion. | |
279 | * | |
280 | * @return true if the value is different from before, false otherwise | |
281 | */ | |
282 | bool set_conversion_option(QString key, QVariant value); | |
283 | ||
284 | /** | |
285 | * Returns the threshold(s) used for conversions, if applicable. | |
286 | * The resulting thresholds are given for the chosen conversion, so you | |
287 | * can query thresholds also for conversions which aren't currently active. | |
288 | * | |
289 | * If you want the thresholds for the currently active conversion, | |
290 | * call it either with NoConversion or no parameter. | |
291 | * | |
292 | * @param t the type of conversion to obtain the thresholds for, leave | |
293 | * empty or use NoConversion if you want to query the currently | |
294 | * used conversion | |
295 | * | |
296 | * @param always_custom ignore the currently selected preset and always | |
297 | * return the custom values for this conversion, using 0 if those | |
298 | * aren't set | |
299 | * | |
300 | * @return a list of threshold(s) used by the chosen conversion | |
301 | */ | |
302 | vector<double> get_conversion_thresholds( | |
303 | const ConversionType t = NoConversion, const bool always_custom=false) const; | |
304 | ||
305 | /** | |
306 | * Provides all conversion presets available for the currently active | |
307 | * conversion. | |
308 | * | |
309 | * @return a list of description/ID pairs for each preset | |
310 | */ | |
311 | vector<pair<QString, int> > get_conversion_presets() const; | |
312 | ||
313 | /** | |
314 | * Determines the ID of the currently used conversion preset, which is only | |
315 | * valid for the currently available conversion presets. It is therefore | |
316 | * suggested to call @ref get_conversion_presets right before calling this. | |
317 | * | |
318 | * @return the ID of the currently used conversion preset. -1 if no preset | |
319 | * is used. In that case, a user setting is used instead. | |
320 | */ | |
321 | ConversionPreset get_current_conversion_preset() const; | |
322 | ||
323 | /** | |
324 | * Sets the conversion preset to be used. | |
325 | * | |
326 | * Does not restart the conversion. | |
327 | * | |
328 | * @param id the id of the preset to use | |
329 | */ | |
330 | void set_conversion_preset(ConversionPreset id); | |
331 | ||
332 | #ifdef ENABLE_DECODE | |
333 | bool is_decode_signal() const; | |
334 | #endif | |
335 | ||
336 | virtual void save_settings(QSettings &settings) const; | |
337 | ||
338 | virtual void restore_settings(QSettings &settings); | |
339 | ||
340 | void start_conversion(bool delayed_start=false); | |
341 | ||
342 | private: | |
343 | bool conversion_is_a2l() const; | |
344 | ||
345 | uint8_t convert_a2l_threshold(float threshold, float value); | |
346 | uint8_t convert_a2l_schmitt_trigger(float lo_thr, float hi_thr, | |
347 | float value, uint8_t &state); | |
348 | ||
349 | void convert_single_segment_range(AnalogSegment *asegment, | |
350 | LogicSegment *lsegment, uint64_t start_sample, uint64_t end_sample); | |
351 | void convert_single_segment(pv::data::AnalogSegment *asegment, | |
352 | pv::data::LogicSegment *lsegment); | |
353 | void conversion_thread_proc(); | |
354 | ||
355 | void stop_conversion(); | |
356 | ||
357 | Q_SIGNALS: | |
358 | void enabled_changed(const bool &value); | |
359 | ||
360 | void name_changed(const QString &name); | |
361 | ||
362 | void color_changed(const QColor &color); | |
363 | ||
364 | void conversion_type_changed(const ConversionType t); | |
365 | ||
366 | void samples_cleared(); | |
367 | ||
368 | void samples_added(uint64_t segment_id, uint64_t start_sample, | |
369 | uint64_t end_sample); | |
370 | ||
371 | void min_max_changed(float min, float max); | |
372 | ||
373 | private Q_SLOTS: | |
374 | void on_samples_cleared(); | |
375 | ||
376 | void on_samples_added(SharedPtrToSegment segment, uint64_t start_sample, | |
377 | uint64_t end_sample); | |
378 | ||
379 | void on_min_max_changed(float min, float max); | |
380 | ||
381 | void on_capture_state_changed(int state); | |
382 | ||
383 | void on_delayed_conversion_start(); | |
384 | ||
385 | protected: | |
386 | shared_ptr<sigrok::Channel> channel_; | |
387 | ChannelType channel_type_; | |
388 | SignalGroup* group_; | |
389 | shared_ptr<pv::data::SignalData> data_; | |
390 | shared_ptr<pv::data::SignalData> converted_data_; | |
391 | ConversionType conversion_type_; | |
392 | map<QString, QVariant> conversion_options_; | |
393 | ||
394 | float min_value_, max_value_; | |
395 | ||
396 | std::thread conversion_thread_; | |
397 | atomic<bool> conversion_interrupt_; | |
398 | mutex conversion_input_mutex_; | |
399 | condition_variable conversion_input_cond_; | |
400 | QTimer delayed_conversion_starter_; | |
401 | ||
402 | QString internal_name_, name_; | |
403 | QColor color_, bgcolor_; | |
404 | unsigned int index_; | |
405 | }; | |
406 | ||
407 | } // namespace data | |
408 | } // namespace pv | |
409 | ||
410 | #endif // PULSEVIEW_PV_DATA_SIGNALBASE_HPP |