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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 <boost/function.hpp> | |
25 | #include <boost/shared_ptr.hpp> | |
26 | #include <boost/thread.hpp> | |
27 | ||
28 | #include <map> | |
29 | #include <set> | |
30 | #include <string> | |
31 | #include <vector> | |
32 | ||
33 | #include <QObject> | |
34 | #include <QString> | |
35 | ||
36 | #include <libsigrok/libsigrok.h> | |
37 | ||
38 | struct srd_decoder; | |
39 | struct srd_probe; | |
40 | ||
41 | namespace pv { | |
42 | ||
43 | class DeviceManager; | |
44 | ||
45 | namespace data { | |
46 | class Analog; | |
47 | class AnalogSnapshot; | |
48 | class Logic; | |
49 | class LogicSnapshot; | |
50 | class SignalData; | |
51 | } | |
52 | ||
53 | namespace view { | |
54 | class DecodeTrace; | |
55 | class LogicSignal; | |
56 | class Signal; | |
57 | } | |
58 | ||
59 | class SigSession : public QObject | |
60 | { | |
61 | Q_OBJECT | |
62 | ||
63 | public: | |
64 | enum capture_state { | |
65 | Stopped, | |
66 | AwaitingTrigger, | |
67 | Running | |
68 | }; | |
69 | ||
70 | public: | |
71 | SigSession(DeviceManager &device_manager); | |
72 | ||
73 | ~SigSession(); | |
74 | ||
75 | struct sr_dev_inst* get_device() const; | |
76 | ||
77 | /** | |
78 | * Sets device instance that will be used in the next capture session. | |
79 | */ | |
80 | void set_device(struct sr_dev_inst *sdi); | |
81 | ||
82 | void release_device(struct sr_dev_inst *sdi); | |
83 | ||
84 | void load_file(const std::string &name, | |
85 | boost::function<void (const QString)> error_handler); | |
86 | ||
87 | capture_state get_capture_state() const; | |
88 | ||
89 | void start_capture(boost::function<void (const QString)> error_handler); | |
90 | ||
91 | void stop_capture(); | |
92 | ||
93 | std::set< boost::shared_ptr<data::SignalData> > get_data() const; | |
94 | ||
95 | std::vector< boost::shared_ptr<view::Signal> > | |
96 | get_signals() const; | |
97 | ||
98 | #ifdef ENABLE_DECODE | |
99 | bool add_decoder(srd_decoder *const dec); | |
100 | ||
101 | std::vector< boost::shared_ptr<view::DecodeTrace> > | |
102 | get_decode_signals() const; | |
103 | ||
104 | void remove_decode_signal(view::DecodeTrace *signal); | |
105 | #endif | |
106 | ||
107 | private: | |
108 | void set_capture_state(capture_state state); | |
109 | ||
110 | void update_signals(const sr_dev_inst *const sdi); | |
111 | ||
112 | bool is_trigger_enabled() const; | |
113 | ||
114 | boost::shared_ptr<view::Signal> signal_from_probe( | |
115 | const sr_probe *probe) const; | |
116 | ||
117 | void read_sample_rate(const sr_dev_inst *const sdi); | |
118 | ||
119 | private: | |
120 | /** | |
121 | * Attempts to autodetect the format. Failing that | |
122 | * @param filename The filename of the input file. | |
123 | * @return A pointer to the 'struct sr_input_format' that should be | |
124 | * used, or NULL if no input format was selected or | |
125 | * auto-detected. | |
126 | */ | |
127 | static sr_input_format* determine_input_file_format( | |
128 | const std::string &filename); | |
129 | ||
130 | static sr_input* load_input_file_format( | |
131 | const std::string &filename, | |
132 | boost::function<void (const QString)> error_handler, | |
133 | sr_input_format *format = NULL); | |
134 | ||
135 | void load_session_thread_proc( | |
136 | boost::function<void (const QString)> error_handler); | |
137 | ||
138 | void load_input_thread_proc(const std::string name, sr_input *in, | |
139 | boost::function<void (const QString)> error_handler); | |
140 | ||
141 | void sample_thread_proc(struct sr_dev_inst *sdi, | |
142 | boost::function<void (const QString)> error_handler); | |
143 | ||
144 | void feed_in_header(const sr_dev_inst *sdi); | |
145 | ||
146 | void feed_in_meta(const sr_dev_inst *sdi, | |
147 | const sr_datafeed_meta &meta); | |
148 | ||
149 | void feed_in_logic(const sr_datafeed_logic &logic); | |
150 | ||
151 | void feed_in_analog(const sr_datafeed_analog &analog); | |
152 | ||
153 | void data_feed_in(const struct sr_dev_inst *sdi, | |
154 | const struct sr_datafeed_packet *packet); | |
155 | ||
156 | static void data_feed_in_proc(const struct sr_dev_inst *sdi, | |
157 | const struct sr_datafeed_packet *packet, void *cb_data); | |
158 | ||
159 | private: | |
160 | DeviceManager &_device_manager; | |
161 | ||
162 | /** | |
163 | * The device instance that will be used in the next capture session. | |
164 | */ | |
165 | struct sr_dev_inst *_sdi; | |
166 | ||
167 | std::vector< boost::shared_ptr<view::DecodeTrace> > _decode_traces; | |
168 | ||
169 | mutable boost::mutex _sampling_mutex; | |
170 | capture_state _capture_state; | |
171 | ||
172 | mutable boost::mutex _signals_mutex; | |
173 | std::vector< boost::shared_ptr<view::Signal> > _signals; | |
174 | ||
175 | mutable boost::mutex _data_mutex; | |
176 | boost::shared_ptr<data::Logic> _logic_data; | |
177 | boost::shared_ptr<data::LogicSnapshot> _cur_logic_snapshot; | |
178 | std::map< const sr_probe*, boost::shared_ptr<data::AnalogSnapshot> > | |
179 | _cur_analog_snapshots; | |
180 | ||
181 | boost::thread _sampling_thread; | |
182 | ||
183 | signals: | |
184 | void capture_state_changed(int state); | |
185 | ||
186 | void signals_changed(); | |
187 | ||
188 | void data_updated(); | |
189 | ||
190 | private: | |
191 | // TODO: This should not be necessary. Multiple concurrent | |
192 | // sessions should should be supported and it should be | |
193 | // possible to associate a pointer with a sr_session. | |
194 | static SigSession *_session; | |
195 | }; | |
196 | ||
197 | } // namespace pv | |
198 | ||
199 | #endif // PULSEVIEW_PV_SIGSESSION_H |