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2953961c | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
2953961c | 3 | * |
1bc6525b | 4 | * Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk> |
2953961c JH |
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 | ||
640d091b UH |
21 | #ifndef PULSEVIEW_PV_SIGSESSION_H |
22 | #define PULSEVIEW_PV_SIGSESSION_H | |
2953961c | 23 | |
708c5523 | 24 | #include <map> |
f9abf97e | 25 | #include <memory> |
3b68d03d | 26 | #include <mutex> |
bfc9f61e | 27 | #include <set> |
28a4c9c5 | 28 | #include <string> |
3b68d03d | 29 | #include <thread> |
e3f65ace | 30 | #include <vector> |
28a4c9c5 | 31 | |
009e1503 | 32 | #include <QObject> |
f2edb557 | 33 | #include <QString> |
009e1503 | 34 | |
2953961c | 35 | #include <libsigrok/libsigrok.h> |
2953961c | 36 | |
82c7f640 | 37 | struct srd_decoder; |
8bd26d8b | 38 | struct srd_channel; |
82c7f640 | 39 | |
51e77110 JH |
40 | namespace pv { |
41 | ||
dc0867ff JH |
42 | class DeviceManager; |
43 | ||
1b1ec774 JH |
44 | namespace data { |
45 | class Analog; | |
46 | class AnalogSnapshot; | |
47 | class Logic; | |
48 | class LogicSnapshot; | |
02412f0b | 49 | class SignalData; |
1b1ec774 | 50 | } |
8d634081 | 51 | |
94574501 JH |
52 | namespace device { |
53 | class DevInst; | |
54 | } | |
55 | ||
8d634081 | 56 | namespace view { |
b9329558 | 57 | class DecodeTrace; |
3045c869 | 58 | class LogicSignal; |
28a4c9c5 | 59 | class Signal; |
8d634081 | 60 | } |
2953961c | 61 | |
009e1503 | 62 | class SigSession : public QObject |
2953961c | 63 | { |
009e1503 JH |
64 | Q_OBJECT |
65 | ||
5b7cf66c JH |
66 | public: |
67 | enum capture_state { | |
68 | Stopped, | |
2b49eeb0 | 69 | AwaitingTrigger, |
5b7cf66c JH |
70 | Running |
71 | }; | |
72 | ||
2953961c | 73 | public: |
dc0867ff | 74 | SigSession(DeviceManager &device_manager); |
2953961c JH |
75 | |
76 | ~SigSession(); | |
77 | ||
f9abf97e | 78 | std::shared_ptr<device::DevInst> get_device() const; |
dc0867ff | 79 | |
d64d1596 JH |
80 | /** |
81 | * Sets device instance that will be used in the next capture session. | |
82 | */ | |
f9abf97e | 83 | void set_device(std::shared_ptr<device::DevInst> dev_inst) |
ae2d1bc5 | 84 | throw(QString); |
d64d1596 | 85 | |
ae2d1bc5 JH |
86 | void set_file(const std::string &name) |
87 | throw(QString); | |
dc0867ff | 88 | |
6fd0b639 JH |
89 | void set_default_device(); |
90 | ||
ae2d1bc5 | 91 | void release_device(device::DevInst *dev_inst); |
2953961c | 92 | |
5b7cf66c JH |
93 | capture_state get_capture_state() const; |
94 | ||
d2344534 | 95 | void start_capture(std::function<void (const QString)> error_handler); |
274d4f13 | 96 | |
5b7cf66c JH |
97 | void stop_capture(); |
98 | ||
f9abf97e | 99 | std::set< std::shared_ptr<data::SignalData> > get_data() const; |
02412f0b | 100 | |
f9abf97e | 101 | std::vector< std::shared_ptr<view::Signal> > |
38eeddea | 102 | get_signals() const; |
e3f65ace | 103 | |
269528f5 | 104 | #ifdef ENABLE_DECODE |
4e5a4405 | 105 | bool add_decoder(srd_decoder *const dec); |
82c7f640 | 106 | |
f9abf97e | 107 | std::vector< std::shared_ptr<view::DecodeTrace> > |
38eeddea JH |
108 | get_decode_signals() const; |
109 | ||
b9329558 | 110 | void remove_decode_signal(view::DecodeTrace *signal); |
269528f5 | 111 | #endif |
c51482b3 | 112 | |
6ac96c2e JH |
113 | private: |
114 | void set_capture_state(capture_state state); | |
115 | ||
f9abf97e | 116 | void update_signals(std::shared_ptr<device::DevInst> dev_inst); |
b087ba7f | 117 | |
6ac6242b ML |
118 | std::shared_ptr<view::Signal> signal_from_channel( |
119 | const sr_channel *channel) const; | |
3ddcc083 | 120 | |
deef291c JH |
121 | void read_sample_rate(const sr_dev_inst *const sdi); |
122 | ||
2953961c | 123 | private: |
f9abf97e | 124 | void sample_thread_proc(std::shared_ptr<device::DevInst> dev_inst, |
d2344534 | 125 | std::function<void (const QString)> error_handler); |
2e2946fe | 126 | |
eec446e1 JH |
127 | void feed_in_header(const sr_dev_inst *sdi); |
128 | ||
be73bdfa JH |
129 | void feed_in_meta(const sr_dev_inst *sdi, |
130 | const sr_datafeed_meta &meta); | |
aba1dd16 | 131 | |
82f50b10 JH |
132 | void feed_in_frame_begin(); |
133 | ||
9c112671 JH |
134 | void feed_in_logic(const sr_datafeed_logic &logic); |
135 | ||
aba1dd16 JH |
136 | void feed_in_analog(const sr_datafeed_analog &analog); |
137 | ||
04abfae9 | 138 | void data_feed_in(const struct sr_dev_inst *sdi, |
bc5c1a99 | 139 | const struct sr_datafeed_packet *packet); |
2953961c | 140 | |
04abfae9 | 141 | static void data_feed_in_proc(const struct sr_dev_inst *sdi, |
5045f16d | 142 | const struct sr_datafeed_packet *packet, void *cb_data); |
2953961c JH |
143 | |
144 | private: | |
dc0867ff | 145 | DeviceManager &_device_manager; |
d64d1596 JH |
146 | |
147 | /** | |
148 | * The device instance that will be used in the next capture session. | |
149 | */ | |
f9abf97e | 150 | std::shared_ptr<device::DevInst> _dev_inst; |
d64d1596 | 151 | |
f9abf97e | 152 | std::vector< std::shared_ptr<view::DecodeTrace> > _decode_traces; |
82c7f640 | 153 | |
3b68d03d | 154 | mutable std::mutex _sampling_mutex; |
5b7cf66c JH |
155 | capture_state _capture_state; |
156 | ||
3b68d03d | 157 | mutable std::mutex _signals_mutex; |
f9abf97e | 158 | std::vector< std::shared_ptr<view::Signal> > _signals; |
3868e5fa | 159 | |
3b68d03d | 160 | mutable std::mutex _data_mutex; |
f9abf97e JH |
161 | std::shared_ptr<data::Logic> _logic_data; |
162 | std::shared_ptr<data::LogicSnapshot> _cur_logic_snapshot; | |
163 | std::map< const sr_channel*, std::shared_ptr<data::AnalogSnapshot> > | |
bb2cdfff | 164 | _cur_analog_snapshots; |
009e1503 | 165 | |
3b68d03d | 166 | std::thread _sampling_thread; |
2e2946fe | 167 | |
e9213170 | 168 | Q_SIGNALS: |
6ac96c2e JH |
169 | void capture_state_changed(int state); |
170 | ||
69dd2b03 JH |
171 | void signals_changed(); |
172 | ||
82f50b10 JH |
173 | void frame_began(); |
174 | ||
1f374035 JH |
175 | void data_received(); |
176 | ||
177 | void frame_ended(); | |
2953961c JH |
178 | |
179 | private: | |
180 | // TODO: This should not be necessary. Multiple concurrent | |
181 | // sessions should should be supported and it should be | |
182 | // possible to associate a pointer with a sr_session. | |
04abfae9 | 183 | static SigSession *_session; |
bb3030b3 ML |
184 | |
185 | public: | |
186 | // TODO: Even more of a hack. The libsigrok API now allows for | |
187 | // multiple sessions. However sr_session_* calls are scattered | |
188 | // around the PV architecture and a single SigSession object is | |
189 | // being used across multiple sequential sessions, which are | |
190 | // created and destroyed in other classes in pv::device. This | |
191 | // is a mess. For now just keep a single sr_session pointer here | |
192 | // which we can use for all those scattered calls. | |
193 | static struct sr_session *_sr_session; | |
2953961c JH |
194 | }; |
195 | ||
51e77110 JH |
196 | } // namespace pv |
197 | ||
640d091b | 198 | #endif // PULSEVIEW_PV_SIGSESSION_H |