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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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef PULSEVIEW_PV_SESSION_HPP | |
21 | #define PULSEVIEW_PV_SESSION_HPP | |
22 | ||
23 | #include <map> | |
24 | #include <memory> | |
25 | #include <mutex> | |
26 | #include <set> | |
27 | #include <string> | |
28 | #include <thread> | |
29 | #include <unordered_set> | |
30 | #include <vector> | |
31 | ||
32 | #include <QObject> | |
33 | #include <QSettings> | |
34 | #include <QString> | |
35 | ||
36 | #include "util.hpp" | |
37 | #include "views/viewbase.hpp" | |
38 | ||
39 | using std::function; | |
40 | using std::list; | |
41 | using std::map; | |
42 | using std::mutex; | |
43 | using std::recursive_mutex; | |
44 | using std::shared_ptr; | |
45 | using std::string; | |
46 | using std::unordered_set; | |
47 | ||
48 | struct srd_decoder; | |
49 | struct srd_channel; | |
50 | ||
51 | namespace sigrok { | |
52 | class Analog; | |
53 | class Channel; | |
54 | class Device; | |
55 | class InputFormat; | |
56 | class Logic; | |
57 | class Meta; | |
58 | class Option; | |
59 | class OutputFormat; | |
60 | class Packet; | |
61 | class Session; | |
62 | } // namespace sigrok | |
63 | ||
64 | using sigrok::Option; | |
65 | ||
66 | namespace pv { | |
67 | ||
68 | class DeviceManager; | |
69 | ||
70 | namespace data { | |
71 | class Analog; | |
72 | class AnalogSegment; | |
73 | class DecodeSignal; | |
74 | class Logic; | |
75 | class LogicSegment; | |
76 | class SignalBase; | |
77 | class SignalData; | |
78 | } | |
79 | ||
80 | namespace devices { | |
81 | class Device; | |
82 | } | |
83 | ||
84 | namespace toolbars { | |
85 | class MainBar; | |
86 | } | |
87 | ||
88 | namespace views { | |
89 | class ViewBase; | |
90 | } | |
91 | ||
92 | class Session : public QObject | |
93 | { | |
94 | Q_OBJECT | |
95 | ||
96 | public: | |
97 | enum capture_state { | |
98 | Stopped, | |
99 | AwaitingTrigger, | |
100 | Running | |
101 | }; | |
102 | ||
103 | static shared_ptr<sigrok::Context> sr_context; | |
104 | ||
105 | public: | |
106 | Session(DeviceManager &device_manager, QString name); | |
107 | ||
108 | ~Session(); | |
109 | ||
110 | DeviceManager& device_manager(); | |
111 | ||
112 | const DeviceManager& device_manager() const; | |
113 | ||
114 | shared_ptr<sigrok::Session> session() const; | |
115 | ||
116 | shared_ptr<devices::Device> device() const; | |
117 | ||
118 | QString name() const; | |
119 | ||
120 | void set_name(QString name); | |
121 | ||
122 | const list< shared_ptr<views::ViewBase> > views() const; | |
123 | ||
124 | shared_ptr<views::ViewBase> main_view() const; | |
125 | ||
126 | shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
127 | ||
128 | void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar); | |
129 | ||
130 | /** | |
131 | * Indicates whether the captured data was saved to disk already or not | |
132 | */ | |
133 | bool data_saved() const; | |
134 | ||
135 | void save_settings(QSettings &settings) const; | |
136 | ||
137 | void restore_settings(QSettings &settings); | |
138 | ||
139 | /** | |
140 | * Attempts to set device instance, may fall back to demo if needed | |
141 | */ | |
142 | void select_device(shared_ptr<devices::Device> device); | |
143 | ||
144 | /** | |
145 | * Sets device instance that will be used in the next capture session. | |
146 | */ | |
147 | void set_device(shared_ptr<devices::Device> device); | |
148 | ||
149 | void set_default_device(); | |
150 | ||
151 | void load_init_file(const string &file_name, const string &format); | |
152 | ||
153 | void load_file(QString file_name, | |
154 | shared_ptr<sigrok::InputFormat> format = nullptr, | |
155 | const map<string, Glib::VariantBase> &options = | |
156 | map<string, Glib::VariantBase>()); | |
157 | ||
158 | capture_state get_capture_state() const; | |
159 | ||
160 | void start_capture(function<void (const QString)> error_handler); | |
161 | ||
162 | void stop_capture(); | |
163 | ||
164 | double get_samplerate() const; | |
165 | ||
166 | void register_view(shared_ptr<views::ViewBase> view); | |
167 | ||
168 | void deregister_view(shared_ptr<views::ViewBase> view); | |
169 | ||
170 | bool has_view(shared_ptr<views::ViewBase> view); | |
171 | ||
172 | const unordered_set< shared_ptr<data::SignalBase> > signalbases() const; | |
173 | ||
174 | #ifdef ENABLE_DECODE | |
175 | shared_ptr<data::DecodeSignal> add_decode_signal(); | |
176 | ||
177 | void remove_decode_signal(shared_ptr<data::DecodeSignal> signal); | |
178 | #endif | |
179 | ||
180 | private: | |
181 | void set_capture_state(capture_state state); | |
182 | ||
183 | void update_signals(); | |
184 | ||
185 | shared_ptr<data::SignalBase> signalbase_from_channel( | |
186 | shared_ptr<sigrok::Channel> channel) const; | |
187 | ||
188 | static map<string, Glib::VariantBase> input_format_options( | |
189 | vector<string> user_spec, | |
190 | map<string, shared_ptr<Option>> fmt_opts); | |
191 | ||
192 | private: | |
193 | void sample_thread_proc(function<void (const QString)> error_handler); | |
194 | ||
195 | void free_unused_memory(); | |
196 | ||
197 | void feed_in_header(); | |
198 | ||
199 | void feed_in_meta(shared_ptr<sigrok::Meta> meta); | |
200 | ||
201 | void feed_in_trigger(); | |
202 | ||
203 | void feed_in_frame_begin(); | |
204 | ||
205 | void feed_in_logic(shared_ptr<sigrok::Logic> logic); | |
206 | ||
207 | void feed_in_analog(shared_ptr<sigrok::Analog> analog); | |
208 | ||
209 | void data_feed_in(shared_ptr<sigrok::Device> device, | |
210 | shared_ptr<sigrok::Packet> packet); | |
211 | ||
212 | private: | |
213 | DeviceManager &device_manager_; | |
214 | shared_ptr<devices::Device> device_; | |
215 | QString default_name_, name_; | |
216 | ||
217 | list< shared_ptr<views::ViewBase> > views_; | |
218 | shared_ptr<pv::views::ViewBase> main_view_; | |
219 | ||
220 | shared_ptr<pv::toolbars::MainBar> main_bar_; | |
221 | ||
222 | mutable mutex sampling_mutex_; //!< Protects access to capture_state_. | |
223 | capture_state capture_state_; | |
224 | ||
225 | unordered_set< shared_ptr<data::SignalBase> > signalbases_; | |
226 | unordered_set< shared_ptr<data::SignalData> > all_signal_data_; | |
227 | ||
228 | mutable recursive_mutex data_mutex_; | |
229 | shared_ptr<data::Logic> logic_data_; | |
230 | uint64_t cur_samplerate_; | |
231 | shared_ptr<data::LogicSegment> cur_logic_segment_; | |
232 | map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> > | |
233 | cur_analog_segments_; | |
234 | ||
235 | std::thread sampling_thread_; | |
236 | ||
237 | bool out_of_memory_; | |
238 | bool data_saved_; | |
239 | ||
240 | Q_SIGNALS: | |
241 | void capture_state_changed(int state); | |
242 | void device_changed(); | |
243 | ||
244 | void signals_changed(); | |
245 | ||
246 | void name_changed(); | |
247 | ||
248 | void trigger_event(util::Timestamp location); | |
249 | ||
250 | void frame_began(); | |
251 | ||
252 | void data_received(); | |
253 | ||
254 | void frame_ended(); | |
255 | ||
256 | void add_view(const QString &title, views::ViewType type, | |
257 | Session *session); | |
258 | ||
259 | public Q_SLOTS: | |
260 | void on_data_saved(); | |
261 | }; | |
262 | ||
263 | } // namespace pv | |
264 | ||
265 | #endif // PULSEVIEW_PV_SESSION_HPP |