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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net> | |
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 | #ifndef PULSEVIEW_PV_DATA_DECODESIGNAL_HPP | |
21 | #define PULSEVIEW_PV_DATA_DECODESIGNAL_HPP | |
22 | ||
23 | #include <atomic> | |
24 | #include <condition_variable> | |
25 | #include <unordered_set> | |
26 | #include <vector> | |
27 | ||
28 | #include <QSettings> | |
29 | #include <QString> | |
30 | ||
31 | #include <libsigrokdecode/libsigrokdecode.h> | |
32 | ||
33 | #include <pv/data/decode/row.hpp> | |
34 | #include <pv/data/decode/rowdata.hpp> | |
35 | #include <pv/data/signalbase.hpp> | |
36 | #include <pv/util.hpp> | |
37 | ||
38 | using std::atomic; | |
39 | using std::condition_variable; | |
40 | using std::map; | |
41 | using std::mutex; | |
42 | using std::pair; | |
43 | using std::vector; | |
44 | using std::shared_ptr; | |
45 | ||
46 | namespace pv { | |
47 | class Session; | |
48 | ||
49 | namespace data { | |
50 | ||
51 | namespace decode { | |
52 | class Annotation; | |
53 | class Decoder; | |
54 | class Row; | |
55 | } | |
56 | ||
57 | class Logic; | |
58 | class LogicSegment; | |
59 | class SignalBase; | |
60 | class SignalData; | |
61 | ||
62 | struct DecodeChannel | |
63 | { | |
64 | uint16_t id; ///< Global numerical ID for the decode channels in the stack | |
65 | uint16_t bit_id; ///< Tells which bit within a sample represents this channel | |
66 | const bool is_optional; | |
67 | const pv::data::SignalBase *assigned_signal; | |
68 | const QString name, desc; | |
69 | int initial_pin_state; | |
70 | const shared_ptr<pv::data::decode::Decoder> decoder_; | |
71 | const srd_channel *pdch_; | |
72 | }; | |
73 | ||
74 | struct DecodeSegment | |
75 | { | |
76 | map<const decode::Row, decode::RowData> annotation_rows; | |
77 | pv::util::Timestamp start_time; | |
78 | double samplerate; | |
79 | int64_t samples_decoded_incl, samples_decoded_excl; | |
80 | }; | |
81 | ||
82 | class DecodeSignal : public SignalBase | |
83 | { | |
84 | Q_OBJECT | |
85 | ||
86 | private: | |
87 | static const double DecodeMargin; | |
88 | static const double DecodeThreshold; | |
89 | static const int64_t DecodeChunkLength; | |
90 | ||
91 | public: | |
92 | DecodeSignal(pv::Session &session); | |
93 | virtual ~DecodeSignal(); | |
94 | ||
95 | bool is_decode_signal() const; | |
96 | const vector< shared_ptr<data::decode::Decoder> >& decoder_stack() const; | |
97 | ||
98 | void stack_decoder(const srd_decoder *decoder); | |
99 | void remove_decoder(int index); | |
100 | bool toggle_decoder_visibility(int index); | |
101 | ||
102 | void reset_decode(bool shutting_down = false); | |
103 | void begin_decode(); | |
104 | QString error_message() const; | |
105 | ||
106 | const vector<data::DecodeChannel> get_channels() const; | |
107 | void auto_assign_signals(const shared_ptr<pv::data::decode::Decoder> dec); | |
108 | void assign_signal(const uint16_t channel_id, const SignalBase *signal); | |
109 | int get_assigned_signal_count() const; | |
110 | ||
111 | void set_initial_pin_state(const uint16_t channel_id, const int init_state); | |
112 | ||
113 | double samplerate() const; | |
114 | const pv::util::Timestamp start_time() const; | |
115 | ||
116 | /** | |
117 | * Returns the number of samples that can be worked on, | |
118 | * i.e. the number of samples where samples are available | |
119 | * for all connected channels. | |
120 | */ | |
121 | int64_t get_working_sample_count(uint32_t segment_id) const; | |
122 | ||
123 | /** | |
124 | * Returns the number of processed samples. Newly generated annotations will | |
125 | * have sample numbers greater than this. | |
126 | * | |
127 | * If include_processing is true, this number will include the ones being | |
128 | * currently processed (in case the decoder stack is running). In this case, | |
129 | * newly generated annotations will have sample numbers smaller than this. | |
130 | */ | |
131 | int64_t get_decoded_sample_count(uint32_t segment_id, | |
132 | bool include_processing) const; | |
133 | ||
134 | vector<decode::Row> visible_rows() const; | |
135 | ||
136 | /** | |
137 | * Extracts annotations from a single row into a vector. | |
138 | * Note: The annotations may be unsorted and only annotations that fully | |
139 | * fit into the sample range are considered. | |
140 | */ | |
141 | void get_annotation_subset( | |
142 | vector<pv::data::decode::Annotation> &dest, | |
143 | const decode::Row &row, uint32_t segment_id, uint64_t start_sample, | |
144 | uint64_t end_sample) const; | |
145 | ||
146 | /** | |
147 | * Extracts annotations from all rows into a vector. | |
148 | * Note: The annotations may be unsorted and only annotations that fully | |
149 | * fit into the sample range are considered. | |
150 | */ | |
151 | void get_annotation_subset( | |
152 | vector<pv::data::decode::Annotation> &dest, | |
153 | uint32_t segment_id, uint64_t start_sample, uint64_t end_sample) const; | |
154 | ||
155 | virtual void save_settings(QSettings &settings) const; | |
156 | ||
157 | virtual void restore_settings(QSettings &settings); | |
158 | ||
159 | private: | |
160 | void set_error_message(QString msg); | |
161 | ||
162 | uint32_t get_input_segment_count() const; | |
163 | ||
164 | uint32_t get_input_samplerate(uint32_t segment_id) const; | |
165 | ||
166 | void update_channel_list(); | |
167 | ||
168 | void commit_decoder_channels(); | |
169 | ||
170 | void mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end); | |
171 | ||
172 | void logic_mux_proc(); | |
173 | ||
174 | void decode_data(const int64_t abs_start_samplenum, const int64_t sample_count, | |
175 | const shared_ptr<LogicSegment> input_segment); | |
176 | ||
177 | void decode_proc(); | |
178 | ||
179 | void start_srd_session(); | |
180 | void terminate_srd_session(); | |
181 | void stop_srd_session(); | |
182 | ||
183 | void connect_input_notifiers(); | |
184 | ||
185 | void create_decode_segment(); | |
186 | ||
187 | static void annotation_callback(srd_proto_data *pdata, void *decode_signal); | |
188 | ||
189 | Q_SIGNALS: | |
190 | void new_annotations(); // TODO Supply segment for which they belong to | |
191 | void decode_reset(); | |
192 | void decode_finished(); | |
193 | void channels_updated(); | |
194 | ||
195 | private Q_SLOTS: | |
196 | void on_capture_state_changed(int state); | |
197 | void on_data_cleared(); | |
198 | void on_data_received(); | |
199 | ||
200 | private: | |
201 | pv::Session &session_; | |
202 | ||
203 | vector<data::DecodeChannel> channels_; | |
204 | ||
205 | struct srd_session *srd_session_; | |
206 | ||
207 | shared_ptr<Logic> logic_mux_data_; | |
208 | uint32_t logic_mux_unit_size_; | |
209 | bool logic_mux_data_invalid_; | |
210 | ||
211 | vector< shared_ptr<decode::Decoder> > stack_; | |
212 | bool stack_config_changed_; | |
213 | map<pair<const srd_decoder*, int>, decode::Row> class_rows_; | |
214 | ||
215 | vector<DecodeSegment> segments_; | |
216 | uint32_t current_segment_id_; | |
217 | ||
218 | mutable mutex input_mutex_, output_mutex_, logic_mux_mutex_; | |
219 | mutable condition_variable decode_input_cond_, logic_mux_cond_; | |
220 | ||
221 | std::thread decode_thread_, logic_mux_thread_; | |
222 | atomic<bool> decode_interrupt_, logic_mux_interrupt_; | |
223 | ||
224 | QString error_message_; | |
225 | }; | |
226 | ||
227 | } // namespace data | |
228 | } // namespace pv | |
229 | ||
230 | #endif // PULSEVIEW_PV_DATA_DECODESIGNAL_HPP |