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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_SESSION_HPP | |
22 | #define PULSEVIEW_PV_SESSION_HPP | |
23 | ||
24 | #include <map> | |
25 | #include <memory> | |
26 | #include <mutex> | |
27 | #include <set> | |
28 | #include <string> | |
29 | #include <thread> | |
30 | #include <unordered_set> | |
31 | #include <vector> | |
32 | ||
33 | #ifdef _WIN32 | |
34 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
35 | #define NOGDI | |
36 | #define NORESOURCE | |
37 | #endif | |
38 | #include <boost/thread/shared_mutex.hpp> | |
39 | ||
40 | #include <QObject> | |
41 | #include <QString> | |
42 | ||
43 | #include "util.hpp" | |
44 | ||
45 | struct srd_decoder; | |
46 | struct srd_channel; | |
47 | ||
48 | namespace sigrok { | |
49 | class Analog; | |
50 | class Channel; | |
51 | class Device; | |
52 | class Logic; | |
53 | class Meta; | |
54 | class Packet; | |
55 | class Session; | |
56 | } | |
57 | ||
58 | namespace pv { | |
59 | ||
60 | class DeviceManager; | |
61 | ||
62 | namespace data { | |
63 | class Analog; | |
64 | class AnalogSegment; | |
65 | class Logic; | |
66 | class LogicSegment; | |
67 | class SignalBase; | |
68 | class SignalData; | |
69 | } | |
70 | ||
71 | namespace devices { | |
72 | class Device; | |
73 | } | |
74 | ||
75 | namespace view { | |
76 | class DecodeTrace; | |
77 | class View; | |
78 | } | |
79 | ||
80 | class Session : public QObject | |
81 | { | |
82 | Q_OBJECT | |
83 | ||
84 | public: | |
85 | enum capture_state { | |
86 | Stopped, | |
87 | AwaitingTrigger, | |
88 | Running | |
89 | }; | |
90 | ||
91 | public: | |
92 | Session(DeviceManager &device_manager); | |
93 | ||
94 | ~Session(); | |
95 | ||
96 | DeviceManager& device_manager(); | |
97 | ||
98 | const DeviceManager& device_manager() const; | |
99 | ||
100 | std::shared_ptr<sigrok::Session> session() const; | |
101 | ||
102 | std::shared_ptr<devices::Device> device() const; | |
103 | ||
104 | /** | |
105 | * Sets device instance that will be used in the next capture session. | |
106 | */ | |
107 | void set_device(std::shared_ptr<devices::Device> device); | |
108 | ||
109 | void set_default_device(); | |
110 | ||
111 | capture_state get_capture_state() const; | |
112 | ||
113 | void start_capture(std::function<void (const QString)> error_handler); | |
114 | ||
115 | void stop_capture(); | |
116 | ||
117 | double get_samplerate() const; | |
118 | ||
119 | void register_view(std::shared_ptr<pv::view::View> view); | |
120 | ||
121 | void deregister_view(std::shared_ptr<pv::view::View> view); | |
122 | ||
123 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
124 | signalbases() const; | |
125 | ||
126 | #ifdef ENABLE_DECODE | |
127 | bool add_decoder(srd_decoder *const dec); | |
128 | ||
129 | std::vector< std::shared_ptr<view::DecodeTrace> > | |
130 | get_decode_signals() const; | |
131 | ||
132 | void remove_decode_signal(view::DecodeTrace *signal); | |
133 | #endif | |
134 | ||
135 | private: | |
136 | void set_capture_state(capture_state state); | |
137 | ||
138 | void update_signals(); | |
139 | ||
140 | std::shared_ptr<data::SignalBase> signalbase_from_channel( | |
141 | std::shared_ptr<sigrok::Channel> channel) const; | |
142 | ||
143 | private: | |
144 | void sample_thread_proc(std::function<void (const QString)> error_handler); | |
145 | ||
146 | void feed_in_header(); | |
147 | ||
148 | void feed_in_meta(std::shared_ptr<sigrok::Meta> meta); | |
149 | ||
150 | void feed_in_trigger(); | |
151 | ||
152 | void feed_in_frame_begin(); | |
153 | ||
154 | void feed_in_logic(std::shared_ptr<sigrok::Logic> logic); | |
155 | ||
156 | void feed_in_analog(std::shared_ptr<sigrok::Analog> analog); | |
157 | ||
158 | void data_feed_in(std::shared_ptr<sigrok::Device> device, | |
159 | std::shared_ptr<sigrok::Packet> packet); | |
160 | ||
161 | private: | |
162 | DeviceManager &device_manager_; | |
163 | std::shared_ptr<devices::Device> device_; | |
164 | ||
165 | std::unordered_set< std::shared_ptr<pv::view::View> > views_; | |
166 | ||
167 | std::vector< std::shared_ptr<view::DecodeTrace> > decode_traces_; | |
168 | ||
169 | mutable std::mutex sampling_mutex_; //!< Protects access to capture_state_. | |
170 | capture_state capture_state_; | |
171 | ||
172 | ||
173 | std::unordered_set< std::shared_ptr<data::SignalBase> > signalbases_; | |
174 | std::unordered_set< std::shared_ptr<data::SignalData> > all_signal_data_; | |
175 | ||
176 | mutable std::recursive_mutex data_mutex_; | |
177 | std::shared_ptr<data::Logic> logic_data_; | |
178 | uint64_t cur_samplerate_; | |
179 | std::shared_ptr<data::LogicSegment> cur_logic_segment_; | |
180 | std::map< std::shared_ptr<sigrok::Channel>, std::shared_ptr<data::AnalogSegment> > | |
181 | cur_analog_segments_; | |
182 | ||
183 | std::thread sampling_thread_; | |
184 | ||
185 | bool out_of_memory_; | |
186 | ||
187 | Q_SIGNALS: | |
188 | void capture_state_changed(int state); | |
189 | void device_selected(); | |
190 | ||
191 | void signals_changed(); | |
192 | ||
193 | void trigger_event(util::Timestamp location); | |
194 | ||
195 | void frame_began(); | |
196 | ||
197 | void data_received(); | |
198 | ||
199 | void frame_ended(); | |
200 | }; | |
201 | ||
202 | } // namespace pv | |
203 | ||
204 | #endif // PULSEVIEW_PV_SESSION_HPP |