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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 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 <string> | |
29 | #include <utility> | |
30 | #include <vector> | |
31 | ||
32 | #include <QObject> | |
33 | #include <QString> | |
34 | ||
35 | #include <libsigrok/libsigrok.h> | |
36 | ||
37 | namespace pv { | |
38 | ||
39 | class DeviceManager; | |
40 | ||
41 | namespace data { | |
42 | class Analog; | |
43 | class AnalogSnapshot; | |
44 | class Logic; | |
45 | class LogicSnapshot; | |
46 | } | |
47 | ||
48 | namespace view { | |
49 | class Signal; | |
50 | } | |
51 | ||
52 | class SigSession : public QObject | |
53 | { | |
54 | Q_OBJECT | |
55 | ||
56 | public: | |
57 | enum capture_state { | |
58 | Stopped, | |
59 | Running | |
60 | }; | |
61 | ||
62 | public: | |
63 | SigSession(DeviceManager &device_manager); | |
64 | ||
65 | ~SigSession(); | |
66 | ||
67 | struct sr_dev_inst* get_device() const; | |
68 | ||
69 | /** | |
70 | * Sets device instance that will be used in the next capture session. | |
71 | */ | |
72 | void set_device(struct sr_dev_inst *sdi); | |
73 | ||
74 | void release_device(struct sr_dev_inst *sdi); | |
75 | ||
76 | void load_file(const std::string &name, | |
77 | boost::function<void (const QString)> error_handler); | |
78 | ||
79 | capture_state get_capture_state() const; | |
80 | ||
81 | void start_capture(uint64_t record_length, | |
82 | boost::function<void (const QString)> error_handler); | |
83 | ||
84 | void stop_capture(); | |
85 | ||
86 | std::vector< boost::shared_ptr<view::Signal> > | |
87 | get_signals(); | |
88 | ||
89 | boost::shared_ptr<data::Logic> get_data(); | |
90 | ||
91 | private: | |
92 | void set_capture_state(capture_state state); | |
93 | ||
94 | private: | |
95 | void load_thread_proc(const std::string name, | |
96 | boost::function<void (const QString)> error_handler); | |
97 | ||
98 | void sample_thread_proc(struct sr_dev_inst *sdi, | |
99 | uint64_t record_length, | |
100 | boost::function<void (const QString)> error_handler); | |
101 | ||
102 | void feed_in_header(const sr_dev_inst *sdi); | |
103 | ||
104 | void feed_in_meta(const sr_dev_inst *sdi, | |
105 | const sr_datafeed_meta &meta); | |
106 | ||
107 | void feed_in_logic(const sr_datafeed_logic &logic); | |
108 | ||
109 | void feed_in_analog(const sr_datafeed_analog &analog); | |
110 | ||
111 | void data_feed_in(const struct sr_dev_inst *sdi, | |
112 | const struct sr_datafeed_packet *packet); | |
113 | ||
114 | static void data_feed_in_proc(const struct sr_dev_inst *sdi, | |
115 | const struct sr_datafeed_packet *packet, void *cb_data); | |
116 | ||
117 | private: | |
118 | DeviceManager &_device_manager; | |
119 | ||
120 | /** | |
121 | * The device instance that will be used in the next capture session. | |
122 | */ | |
123 | struct sr_dev_inst *_sdi; | |
124 | ||
125 | mutable boost::mutex _sampling_mutex; | |
126 | capture_state _capture_state; | |
127 | ||
128 | mutable boost::mutex _signals_mutex; | |
129 | std::vector< boost::shared_ptr<view::Signal> > _signals; | |
130 | ||
131 | mutable boost::mutex _data_mutex; | |
132 | boost::shared_ptr<data::Logic> _logic_data; | |
133 | boost::shared_ptr<data::LogicSnapshot> _cur_logic_snapshot; | |
134 | boost::shared_ptr<data::Analog> _analog_data; | |
135 | boost::shared_ptr<data::AnalogSnapshot> _cur_analog_snapshot; | |
136 | ||
137 | std::auto_ptr<boost::thread> _sampling_thread; | |
138 | ||
139 | signals: | |
140 | void capture_state_changed(int state); | |
141 | ||
142 | void signals_changed(); | |
143 | ||
144 | void data_updated(); | |
145 | ||
146 | private: | |
147 | // TODO: This should not be necessary. Multiple concurrent | |
148 | // sessions should should be supported and it should be | |
149 | // possible to associate a pointer with a sr_session. | |
150 | static SigSession *_session; | |
151 | }; | |
152 | ||
153 | } // namespace pv | |
154 | ||
155 | #endif // PULSEVIEW_PV_SIGSESSION_H |