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2953961c | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
2953961c JH |
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 | #include "sigsession.h" | |
22 | ||
28a4c9c5 JH |
23 | #include "logicdata.h" |
24 | #include "logicdatasnapshot.h" | |
8d634081 | 25 | #include "view/logicsignal.h" |
28a4c9c5 | 26 | |
009e1503 JH |
27 | #include <QDebug> |
28 | ||
2953961c JH |
29 | #include <assert.h> |
30 | ||
28a4c9c5 | 31 | using namespace boost; |
e3f65ace | 32 | using namespace std; |
28a4c9c5 | 33 | |
51e77110 JH |
34 | namespace pv { |
35 | ||
2953961c | 36 | // TODO: This should not be necessary |
04abfae9 | 37 | SigSession* SigSession::_session = NULL; |
2953961c | 38 | |
5b7cf66c JH |
39 | SigSession::SigSession() : |
40 | _capture_state(Stopped) | |
2953961c JH |
41 | { |
42 | // TODO: This should not be necessary | |
04abfae9 | 43 | _session = this; |
2953961c JH |
44 | } |
45 | ||
46 | SigSession::~SigSession() | |
47 | { | |
5b7cf66c JH |
48 | stop_capture(); |
49 | ||
333d5bbc | 50 | if (_sampling_thread.get()) |
2e2946fe JH |
51 | _sampling_thread->join(); |
52 | _sampling_thread.reset(); | |
53 | ||
2953961c | 54 | // TODO: This should not be necessary |
04abfae9 | 55 | _session = NULL; |
2953961c JH |
56 | } |
57 | ||
8a67bd9e | 58 | void SigSession::load_file(const string &name) |
2953961c | 59 | { |
8a67bd9e JH |
60 | stop_capture(); |
61 | _sampling_thread.reset(new boost::thread( | |
62 | &SigSession::load_thread_proc, this, name)); | |
2953961c JH |
63 | } |
64 | ||
5b7cf66c JH |
65 | SigSession::capture_state SigSession::get_capture_state() const |
66 | { | |
67 | lock_guard<mutex> lock(_state_mutex); | |
68 | return _capture_state; | |
69 | } | |
70 | ||
274d4f13 | 71 | void SigSession::start_capture(struct sr_dev_inst *sdi, |
215f9499 | 72 | uint64_t record_length, uint64_t sample_rate) |
2e2946fe | 73 | { |
5b7cf66c JH |
74 | stop_capture(); |
75 | ||
2e2946fe JH |
76 | |
77 | _sampling_thread.reset(new boost::thread( | |
78 | &SigSession::sample_thread_proc, this, sdi, | |
79 | record_length, sample_rate)); | |
80 | } | |
81 | ||
5b7cf66c JH |
82 | void SigSession::stop_capture() |
83 | { | |
333d5bbc | 84 | if (get_capture_state() == Stopped) |
5b7cf66c JH |
85 | return; |
86 | ||
87 | sr_session_stop(); | |
88 | ||
89 | // Check that sampling stopped | |
333d5bbc | 90 | if (_sampling_thread.get()) |
5b7cf66c JH |
91 | _sampling_thread->join(); |
92 | _sampling_thread.reset(); | |
5b7cf66c JH |
93 | } |
94 | ||
3868e5fa | 95 | vector< shared_ptr<view::Signal> > SigSession::get_signals() |
2e2946fe | 96 | { |
3868e5fa | 97 | lock_guard<mutex> lock(_signals_mutex); |
2e2946fe JH |
98 | return _signals; |
99 | } | |
100 | ||
101 | boost::shared_ptr<LogicData> SigSession::get_data() | |
102 | { | |
103 | return _logic_data; | |
104 | } | |
105 | ||
6ac96c2e JH |
106 | void SigSession::set_capture_state(capture_state state) |
107 | { | |
108 | lock_guard<mutex> lock(_state_mutex); | |
109 | _capture_state = state; | |
110 | capture_state_changed(state); | |
111 | } | |
112 | ||
8a67bd9e JH |
113 | void SigSession::load_thread_proc(const string name) |
114 | { | |
115 | if (sr_session_load(name.c_str()) != SR_OK) { | |
116 | qDebug() << "Failed to load file."; | |
117 | return; | |
118 | } | |
119 | ||
120 | sr_session_datafeed_callback_add(data_feed_in_proc); | |
121 | ||
122 | if (sr_session_start() != SR_OK) { | |
123 | qDebug() << "Failed to start session."; | |
124 | return; | |
125 | } | |
126 | ||
127 | set_capture_state(Running); | |
128 | ||
129 | sr_session_run(); | |
130 | sr_session_stop(); | |
131 | ||
132 | set_capture_state(Stopped); | |
133 | } | |
134 | ||
2e2946fe JH |
135 | void SigSession::sample_thread_proc(struct sr_dev_inst *sdi, |
136 | uint64_t record_length, uint64_t sample_rate) | |
274d4f13 JH |
137 | { |
138 | sr_session_new(); | |
04abfae9 | 139 | sr_session_datafeed_callback_add(data_feed_in_proc); |
274d4f13 JH |
140 | |
141 | if (sr_session_dev_add(sdi) != SR_OK) { | |
142 | qDebug() << "Failed to use device."; | |
143 | sr_session_destroy(); | |
144 | return; | |
145 | } | |
146 | ||
274d4f13 | 147 | if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES, |
215f9499 | 148 | &record_length) != SR_OK) { |
274d4f13 JH |
149 | qDebug() << "Failed to configure time-based sample limit."; |
150 | sr_session_destroy(); | |
151 | return; | |
152 | } | |
153 | ||
154 | if (sr_dev_config_set(sdi, SR_HWCAP_SAMPLERATE, | |
155 | &sample_rate) != SR_OK) { | |
156 | qDebug() << "Failed to configure samplerate."; | |
157 | sr_session_destroy(); | |
158 | return; | |
159 | } | |
160 | ||
161 | if (sr_session_start() != SR_OK) { | |
162 | qDebug() << "Failed to start session."; | |
163 | return; | |
164 | } | |
165 | ||
6ac96c2e | 166 | set_capture_state(Running); |
5b7cf66c | 167 | |
274d4f13 JH |
168 | sr_session_run(); |
169 | sr_session_destroy(); | |
6ac96c2e JH |
170 | |
171 | set_capture_state(Stopped); | |
274d4f13 JH |
172 | } |
173 | ||
b0e1d01d JH |
174 | void SigSession::feed_in_meta_logic(const struct sr_dev_inst *sdi, |
175 | const sr_datafeed_meta_logic &meta_logic) | |
2953961c | 176 | { |
8d634081 JH |
177 | using view::LogicSignal; |
178 | ||
3868e5fa JH |
179 | { |
180 | lock_guard<mutex> lock(_data_mutex); | |
181 | ||
b0e1d01d | 182 | // Create an empty LogicData for coming data snapshots |
2e2946fe JH |
183 | _logic_data.reset(new LogicData(meta_logic)); |
184 | assert(_logic_data); | |
333d5bbc | 185 | if (!_logic_data) |
b0e1d01d | 186 | return; |
3868e5fa JH |
187 | } |
188 | ||
189 | { | |
190 | lock_guard<mutex> lock(_signals_mutex); | |
2e2946fe JH |
191 | |
192 | // Add the signals | |
b0e1d01d | 193 | for (int i = 0; i < meta_logic.num_probes; i++) { |
2e2946fe JH |
194 | const sr_probe *const probe = |
195 | (const sr_probe*)g_slist_nth_data( | |
196 | sdi->probes, i); | |
b0e1d01d | 197 | if (probe->enabled) { |
2e2946fe JH |
198 | shared_ptr<LogicSignal> signal( |
199 | new LogicSignal(probe->name, | |
b0e1d01d | 200 | _logic_data, probe->index)); |
2e2946fe | 201 | _signals.push_back(signal); |
e3f65ace | 202 | } |
2953961c | 203 | } |
28a4c9c5 | 204 | |
69dd2b03 | 205 | signals_changed(); |
2e2946fe | 206 | } |
b0e1d01d JH |
207 | } |
208 | ||
209 | void SigSession::data_feed_in(const struct sr_dev_inst *sdi, | |
210 | const struct sr_datafeed_packet *packet) | |
211 | { | |
212 | assert(sdi); | |
213 | assert(packet); | |
214 | ||
215 | switch (packet->type) { | |
216 | case SR_DF_HEADER: | |
217 | { | |
218 | lock_guard<mutex> lock(_signals_mutex); | |
219 | _signals.clear(); | |
220 | break; | |
3868e5fa | 221 | } |
f556bc6a | 222 | |
b0e1d01d JH |
223 | case SR_DF_META_LOGIC: |
224 | assert(packet->payload); | |
225 | feed_in_meta_logic(sdi, | |
226 | *(const sr_datafeed_meta_logic*)packet->payload); | |
227 | break; | |
228 | ||
2e2946fe JH |
229 | case SR_DF_LOGIC: |
230 | { | |
231 | lock_guard<mutex> lock(_data_mutex); | |
28a4c9c5 | 232 | assert(packet->payload); |
333d5bbc | 233 | if (!_cur_logic_snapshot) |
f556bc6a JH |
234 | { |
235 | // Create a new data snapshot | |
236 | _cur_logic_snapshot = shared_ptr<LogicDataSnapshot>( | |
237 | new LogicDataSnapshot( | |
238 | *(sr_datafeed_logic*)packet->payload)); | |
239 | _logic_data->push_snapshot(_cur_logic_snapshot); | |
240 | } | |
241 | else | |
242 | { | |
243 | // Append to the existing data snapshot | |
28a4c9c5 JH |
244 | _cur_logic_snapshot->append_payload( |
245 | *(sr_datafeed_logic*)packet->payload); | |
f556bc6a JH |
246 | } |
247 | ||
c19bccc8 | 248 | data_updated(); |
2953961c | 249 | break; |
2e2946fe | 250 | } |
2953961c JH |
251 | |
252 | case SR_DF_END: | |
2e2946fe JH |
253 | { |
254 | { | |
255 | lock_guard<mutex> lock(_data_mutex); | |
256 | _cur_logic_snapshot.reset(); | |
257 | } | |
04abfae9 | 258 | data_updated(); |
2953961c JH |
259 | break; |
260 | } | |
2e2946fe | 261 | } |
2953961c JH |
262 | } |
263 | ||
04abfae9 | 264 | void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi, |
bc5c1a99 | 265 | const struct sr_datafeed_packet *packet) |
2953961c | 266 | { |
04abfae9 JH |
267 | assert(_session); |
268 | _session->data_feed_in(sdi, packet); | |
2953961c | 269 | } |
51e77110 JH |
270 | |
271 | } // namespace pv |