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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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef PULSEVIEW_PV_SIGSESSION_H | |
22 | #define PULSEVIEW_PV_SIGSESSION_H | |
23 | ||
24 | #include <map> | |
25 | #include <memory> | |
26 | #include <mutex> | |
27 | #include <set> | |
28 | #include <string> | |
29 | #include <thread> | |
30 | #include <vector> | |
31 | ||
32 | #include <boost/thread.hpp> | |
33 | ||
34 | #include <QObject> | |
35 | #include <QString> | |
36 | ||
37 | struct srd_decoder; | |
38 | struct srd_channel; | |
39 | ||
40 | namespace sigrok { | |
41 | class Analog; | |
42 | class Channel; | |
43 | class Device; | |
44 | class Logic; | |
45 | class Meta; | |
46 | class Packet; | |
47 | class Session; | |
48 | } | |
49 | ||
50 | namespace pv { | |
51 | ||
52 | class DeviceManager; | |
53 | ||
54 | namespace data { | |
55 | class Analog; | |
56 | class AnalogSnapshot; | |
57 | class Logic; | |
58 | class LogicSnapshot; | |
59 | class SignalData; | |
60 | } | |
61 | ||
62 | namespace view { | |
63 | class DecodeTrace; | |
64 | class LogicSignal; | |
65 | class Signal; | |
66 | } | |
67 | ||
68 | class Session : public QObject | |
69 | { | |
70 | Q_OBJECT | |
71 | ||
72 | public: | |
73 | enum capture_state { | |
74 | Stopped, | |
75 | AwaitingTrigger, | |
76 | Running | |
77 | }; | |
78 | ||
79 | public: | |
80 | Session(DeviceManager &device_manager); | |
81 | ||
82 | ~Session(); | |
83 | ||
84 | DeviceManager& device_manager(); | |
85 | ||
86 | const DeviceManager& device_manager() const; | |
87 | ||
88 | const std::shared_ptr<sigrok::Session>& session() const; | |
89 | ||
90 | std::shared_ptr<sigrok::Device> device() const; | |
91 | ||
92 | /** | |
93 | * Sets device instance that will be used in the next capture session. | |
94 | */ | |
95 | void set_device(std::shared_ptr<sigrok::Device> device); | |
96 | ||
97 | void set_file(const std::string &name); | |
98 | ||
99 | void set_default_device(); | |
100 | ||
101 | capture_state get_capture_state() const; | |
102 | ||
103 | void start_capture(std::function<void (const QString)> error_handler); | |
104 | ||
105 | void stop_capture(); | |
106 | ||
107 | std::set< std::shared_ptr<data::SignalData> > get_data() const; | |
108 | ||
109 | boost::shared_mutex& signals_mutex() const; | |
110 | ||
111 | const std::vector< std::shared_ptr<view::Signal> >& signals() const; | |
112 | ||
113 | #ifdef ENABLE_DECODE | |
114 | bool add_decoder(srd_decoder *const dec); | |
115 | ||
116 | std::vector< std::shared_ptr<view::DecodeTrace> > | |
117 | get_decode_signals() const; | |
118 | ||
119 | void remove_decode_signal(view::DecodeTrace *signal); | |
120 | #endif | |
121 | ||
122 | private: | |
123 | void set_capture_state(capture_state state); | |
124 | ||
125 | void update_signals(std::shared_ptr<sigrok::Device> device); | |
126 | ||
127 | std::shared_ptr<view::Signal> signal_from_channel( | |
128 | std::shared_ptr<sigrok::Channel> channel) const; | |
129 | ||
130 | void read_sample_rate(std::shared_ptr<sigrok::Device>); | |
131 | ||
132 | private: | |
133 | void sample_thread_proc(std::shared_ptr<sigrok::Device> device, | |
134 | std::function<void (const QString)> error_handler); | |
135 | ||
136 | void feed_in_header(std::shared_ptr<sigrok::Device> device); | |
137 | ||
138 | void feed_in_meta(std::shared_ptr<sigrok::Device> device, | |
139 | std::shared_ptr<sigrok::Meta> meta); | |
140 | ||
141 | void feed_in_frame_begin(); | |
142 | ||
143 | void feed_in_logic(std::shared_ptr<sigrok::Logic> logic); | |
144 | ||
145 | void feed_in_analog(std::shared_ptr<sigrok::Analog> analog); | |
146 | ||
147 | void data_feed_in(std::shared_ptr<sigrok::Device> device, | |
148 | std::shared_ptr<sigrok::Packet> packet); | |
149 | ||
150 | private: | |
151 | DeviceManager &device_manager_; | |
152 | std::shared_ptr<sigrok::Session> session_; | |
153 | ||
154 | /** | |
155 | * The device instance that will be used in the next capture session. | |
156 | */ | |
157 | std::shared_ptr<sigrok::Device> device_; | |
158 | ||
159 | std::vector< std::shared_ptr<view::DecodeTrace> > decode_traces_; | |
160 | ||
161 | mutable std::mutex sampling_mutex_; | |
162 | capture_state capture_state_; | |
163 | ||
164 | mutable boost::shared_mutex signals_mutex_; | |
165 | std::vector< std::shared_ptr<view::Signal> > signals_; | |
166 | ||
167 | mutable std::mutex data_mutex_; | |
168 | std::shared_ptr<data::Logic> logic_data_; | |
169 | std::shared_ptr<data::LogicSnapshot> cur_logic_snapshot_; | |
170 | std::map< std::shared_ptr<sigrok::Channel>, std::shared_ptr<data::AnalogSnapshot> > | |
171 | cur_analog_snapshots_; | |
172 | ||
173 | std::thread sampling_thread_; | |
174 | ||
175 | Q_SIGNALS: | |
176 | void capture_state_changed(int state); | |
177 | void device_selected(); | |
178 | ||
179 | void signals_changed(); | |
180 | ||
181 | void frame_began(); | |
182 | ||
183 | void data_received(); | |
184 | ||
185 | void frame_ended(); | |
186 | }; | |
187 | ||
188 | } // namespace pv | |
189 | ||
190 | #endif // PULSEVIEW_PV_SIGSESSION_H |