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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 | ||
1b1ec774 JH |
23 | #include "data/analog.h" |
24 | #include "data/analogsnapshot.h" | |
25 | #include "data/logic.h" | |
26 | #include "data/logicsnapshot.h" | |
aba1dd16 | 27 | #include "view/analogsignal.h" |
8d634081 | 28 | #include "view/logicsignal.h" |
28a4c9c5 | 29 | |
009e1503 JH |
30 | #include <QDebug> |
31 | ||
2953961c JH |
32 | #include <assert.h> |
33 | ||
28a4c9c5 | 34 | using namespace boost; |
e3f65ace | 35 | using namespace std; |
28a4c9c5 | 36 | |
51e77110 JH |
37 | namespace pv { |
38 | ||
2953961c | 39 | // TODO: This should not be necessary |
04abfae9 | 40 | SigSession* SigSession::_session = NULL; |
2953961c | 41 | |
5b7cf66c JH |
42 | SigSession::SigSession() : |
43 | _capture_state(Stopped) | |
2953961c JH |
44 | { |
45 | // TODO: This should not be necessary | |
04abfae9 | 46 | _session = this; |
2953961c JH |
47 | } |
48 | ||
49 | SigSession::~SigSession() | |
50 | { | |
5b7cf66c JH |
51 | stop_capture(); |
52 | ||
333d5bbc | 53 | if (_sampling_thread.get()) |
2e2946fe JH |
54 | _sampling_thread->join(); |
55 | _sampling_thread.reset(); | |
56 | ||
2953961c | 57 | // TODO: This should not be necessary |
04abfae9 | 58 | _session = NULL; |
2953961c JH |
59 | } |
60 | ||
8a67bd9e | 61 | void SigSession::load_file(const string &name) |
2953961c | 62 | { |
8a67bd9e JH |
63 | stop_capture(); |
64 | _sampling_thread.reset(new boost::thread( | |
65 | &SigSession::load_thread_proc, this, name)); | |
2953961c JH |
66 | } |
67 | ||
5b7cf66c JH |
68 | SigSession::capture_state SigSession::get_capture_state() const |
69 | { | |
949f8050 | 70 | lock_guard<mutex> lock(_sampling_mutex); |
5b7cf66c JH |
71 | return _capture_state; |
72 | } | |
73 | ||
274d4f13 | 74 | void SigSession::start_capture(struct sr_dev_inst *sdi, |
215f9499 | 75 | uint64_t record_length, uint64_t sample_rate) |
2e2946fe | 76 | { |
5b7cf66c JH |
77 | stop_capture(); |
78 | ||
aba1dd16 JH |
79 | lock_guard<mutex> lock(_sampling_mutex); |
80 | _sample_rate = sample_rate; | |
2e2946fe JH |
81 | |
82 | _sampling_thread.reset(new boost::thread( | |
83 | &SigSession::sample_thread_proc, this, sdi, | |
aba1dd16 | 84 | record_length)); |
2e2946fe JH |
85 | } |
86 | ||
5b7cf66c JH |
87 | void SigSession::stop_capture() |
88 | { | |
333d5bbc | 89 | if (get_capture_state() == Stopped) |
5b7cf66c JH |
90 | return; |
91 | ||
92 | sr_session_stop(); | |
93 | ||
94 | // Check that sampling stopped | |
333d5bbc | 95 | if (_sampling_thread.get()) |
5b7cf66c JH |
96 | _sampling_thread->join(); |
97 | _sampling_thread.reset(); | |
5b7cf66c JH |
98 | } |
99 | ||
3868e5fa | 100 | vector< shared_ptr<view::Signal> > SigSession::get_signals() |
2e2946fe | 101 | { |
3868e5fa | 102 | lock_guard<mutex> lock(_signals_mutex); |
2e2946fe JH |
103 | return _signals; |
104 | } | |
105 | ||
1b1ec774 | 106 | boost::shared_ptr<data::Logic> SigSession::get_data() |
2e2946fe JH |
107 | { |
108 | return _logic_data; | |
109 | } | |
110 | ||
6ac96c2e JH |
111 | void SigSession::set_capture_state(capture_state state) |
112 | { | |
949f8050 | 113 | lock_guard<mutex> lock(_sampling_mutex); |
6ac96c2e JH |
114 | _capture_state = state; |
115 | capture_state_changed(state); | |
116 | } | |
117 | ||
8a67bd9e JH |
118 | void SigSession::load_thread_proc(const string name) |
119 | { | |
120 | if (sr_session_load(name.c_str()) != SR_OK) { | |
121 | qDebug() << "Failed to load file."; | |
122 | return; | |
123 | } | |
124 | ||
125 | sr_session_datafeed_callback_add(data_feed_in_proc); | |
126 | ||
127 | if (sr_session_start() != SR_OK) { | |
128 | qDebug() << "Failed to start session."; | |
129 | return; | |
130 | } | |
131 | ||
132 | set_capture_state(Running); | |
133 | ||
134 | sr_session_run(); | |
135 | sr_session_stop(); | |
136 | ||
137 | set_capture_state(Stopped); | |
138 | } | |
139 | ||
2e2946fe | 140 | void SigSession::sample_thread_proc(struct sr_dev_inst *sdi, |
aba1dd16 | 141 | uint64_t record_length) |
274d4f13 | 142 | { |
be73bdfa JH |
143 | shared_ptr<view::Signal> signal; |
144 | unsigned int logic_probe_count = 0; | |
145 | unsigned int analog_probe_count = 0; | |
146 | ||
147 | assert(sdi); | |
148 | ||
274d4f13 | 149 | sr_session_new(); |
04abfae9 | 150 | sr_session_datafeed_callback_add(data_feed_in_proc); |
274d4f13 JH |
151 | |
152 | if (sr_session_dev_add(sdi) != SR_OK) { | |
153 | qDebug() << "Failed to use device."; | |
154 | sr_session_destroy(); | |
155 | return; | |
156 | } | |
157 | ||
be73bdfa JH |
158 | // Set the sample limit |
159 | if (sr_config_set(sdi, SR_CONF_LIMIT_SAMPLES, | |
215f9499 | 160 | &record_length) != SR_OK) { |
274d4f13 JH |
161 | qDebug() << "Failed to configure time-based sample limit."; |
162 | sr_session_destroy(); | |
163 | return; | |
164 | } | |
165 | ||
be73bdfa | 166 | // Set the samplerate |
aba1dd16 JH |
167 | { |
168 | lock_guard<mutex> lock(_sampling_mutex); | |
be73bdfa | 169 | if (sr_config_set(sdi, SR_CONF_SAMPLERATE, |
aba1dd16 JH |
170 | &_sample_rate) != SR_OK) { |
171 | qDebug() << "Failed to configure samplerate."; | |
172 | sr_session_destroy(); | |
173 | return; | |
174 | } | |
274d4f13 JH |
175 | } |
176 | ||
be73bdfa JH |
177 | // Detect what data types we will receive |
178 | for (const GSList *l = sdi->probes; l; l = l->next) { | |
179 | const sr_probe *const probe = (const sr_probe *)l->data; | |
180 | if (!probe->enabled) | |
181 | continue; | |
274d4f13 | 182 | |
be73bdfa JH |
183 | switch(probe->type) { |
184 | case SR_PROBE_LOGIC: | |
185 | logic_probe_count++; | |
186 | break; | |
5b7cf66c | 187 | |
be73bdfa JH |
188 | case SR_PROBE_ANALOG: |
189 | analog_probe_count++; | |
190 | break; | |
191 | } | |
192 | } | |
8d634081 | 193 | |
be73bdfa | 194 | // Create data containers for the coming data snapshots |
3868e5fa | 195 | { |
aba1dd16 JH |
196 | lock_guard<mutex> data_lock(_data_mutex); |
197 | lock_guard<mutex> sampling_lock(_sampling_mutex); | |
3868e5fa | 198 | |
be73bdfa JH |
199 | if (logic_probe_count != 0) { |
200 | _logic_data.reset(new data::Logic( | |
201 | logic_probe_count, _sample_rate)); | |
202 | assert(_logic_data); | |
203 | } | |
204 | ||
205 | if (analog_probe_count != 0) { | |
206 | _analog_data.reset(new data::Analog(_sample_rate)); | |
207 | assert(_analog_data); | |
208 | } | |
3868e5fa JH |
209 | } |
210 | ||
be73bdfa | 211 | // Make the logic probe list |
3868e5fa JH |
212 | { |
213 | lock_guard<mutex> lock(_signals_mutex); | |
2e2946fe | 214 | |
be73bdfa JH |
215 | _signals.clear(); |
216 | ||
217 | for (const GSList *l = sdi->probes; l; l = l->next) { | |
2e2946fe | 218 | const sr_probe *const probe = |
be73bdfa JH |
219 | (const sr_probe *)l->data; |
220 | assert(probe); | |
221 | if (!probe->enabled) | |
222 | continue; | |
223 | ||
224 | switch(probe->type) { | |
225 | case SR_PROBE_LOGIC: | |
226 | signal = shared_ptr<view::Signal>( | |
227 | new view::LogicSignal(probe->name, | |
b0e1d01d | 228 | _logic_data, probe->index)); |
be73bdfa JH |
229 | break; |
230 | ||
231 | case SR_PROBE_ANALOG: | |
232 | signal = shared_ptr<view::Signal>( | |
233 | new view::AnalogSignal(probe->name, | |
234 | _analog_data)); | |
235 | break; | |
e3f65ace | 236 | } |
be73bdfa JH |
237 | |
238 | _signals.push_back(signal); | |
2953961c | 239 | } |
28a4c9c5 | 240 | |
69dd2b03 | 241 | signals_changed(); |
2e2946fe | 242 | } |
aba1dd16 | 243 | |
be73bdfa JH |
244 | if (sr_session_start() != SR_OK) { |
245 | qDebug() << "Failed to start session."; | |
246 | return; | |
aba1dd16 JH |
247 | } |
248 | ||
be73bdfa | 249 | set_capture_state(Running); |
aba1dd16 | 250 | |
be73bdfa JH |
251 | sr_session_run(); |
252 | sr_session_destroy(); | |
aba1dd16 | 253 | |
be73bdfa JH |
254 | set_capture_state(Stopped); |
255 | } | |
256 | ||
257 | void SigSession::feed_in_meta(const sr_dev_inst *sdi, | |
258 | const sr_datafeed_meta &meta) | |
259 | { | |
260 | for (const GSList *l = meta.config; l; l = l->next) { | |
261 | const sr_config *const src = (const sr_config*)l->data; | |
262 | switch (src->key) { | |
263 | case SR_CONF_SAMPLERATE: | |
264 | /// @todo handle samplerate changes | |
265 | /// samplerate = (uint64_t *)src->value; | |
266 | break; | |
267 | default: | |
268 | // Unknown metadata is not an error. | |
269 | break; | |
270 | } | |
aba1dd16 JH |
271 | } |
272 | } | |
273 | ||
9c112671 JH |
274 | void SigSession::feed_in_logic(const sr_datafeed_logic &logic) |
275 | { | |
276 | lock_guard<mutex> lock(_data_mutex); | |
277 | if (!_cur_logic_snapshot) | |
278 | { | |
be73bdfa JH |
279 | assert(_logic_data); |
280 | ||
9c112671 | 281 | // Create a new data snapshot |
1b1ec774 JH |
282 | _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>( |
283 | new data::LogicSnapshot(logic)); | |
9c112671 JH |
284 | _logic_data->push_snapshot(_cur_logic_snapshot); |
285 | } | |
286 | else | |
287 | { | |
288 | // Append to the existing data snapshot | |
289 | _cur_logic_snapshot->append_payload(logic); | |
290 | } | |
291 | ||
292 | data_updated(); | |
293 | } | |
294 | ||
aba1dd16 JH |
295 | void SigSession::feed_in_analog(const sr_datafeed_analog &analog) |
296 | { | |
297 | lock_guard<mutex> lock(_data_mutex); | |
298 | if (!_cur_analog_snapshot) | |
299 | { | |
be73bdfa JH |
300 | assert(_analog_data); |
301 | ||
aba1dd16 | 302 | // Create a new data snapshot |
1b1ec774 JH |
303 | _cur_analog_snapshot = shared_ptr<data::AnalogSnapshot>( |
304 | new data::AnalogSnapshot(analog)); | |
aba1dd16 JH |
305 | _analog_data->push_snapshot(_cur_analog_snapshot); |
306 | } | |
307 | else | |
308 | { | |
309 | // Append to the existing data snapshot | |
310 | _cur_analog_snapshot->append_payload(analog); | |
311 | } | |
312 | ||
313 | data_updated(); | |
314 | } | |
9c112671 | 315 | |
b0e1d01d JH |
316 | void SigSession::data_feed_in(const struct sr_dev_inst *sdi, |
317 | const struct sr_datafeed_packet *packet) | |
318 | { | |
319 | assert(sdi); | |
320 | assert(packet); | |
321 | ||
322 | switch (packet->type) { | |
323 | case SR_DF_HEADER: | |
b0e1d01d JH |
324 | break; |
325 | ||
be73bdfa | 326 | case SR_DF_META: |
aba1dd16 | 327 | assert(packet->payload); |
be73bdfa JH |
328 | feed_in_meta(sdi, |
329 | *(const sr_datafeed_meta*)packet->payload); | |
aba1dd16 JH |
330 | break; |
331 | ||
2e2946fe | 332 | case SR_DF_LOGIC: |
28a4c9c5 | 333 | assert(packet->payload); |
9c112671 | 334 | feed_in_logic(*(const sr_datafeed_logic*)packet->payload); |
2953961c JH |
335 | break; |
336 | ||
aba1dd16 JH |
337 | case SR_DF_ANALOG: |
338 | assert(packet->payload); | |
339 | feed_in_analog(*(const sr_datafeed_analog*)packet->payload); | |
340 | break; | |
341 | ||
2953961c | 342 | case SR_DF_END: |
2e2946fe JH |
343 | { |
344 | { | |
345 | lock_guard<mutex> lock(_data_mutex); | |
346 | _cur_logic_snapshot.reset(); | |
aba1dd16 | 347 | _cur_analog_snapshot.reset(); |
2e2946fe | 348 | } |
04abfae9 | 349 | data_updated(); |
2953961c JH |
350 | break; |
351 | } | |
2e2946fe | 352 | } |
2953961c JH |
353 | } |
354 | ||
04abfae9 | 355 | void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi, |
bc5c1a99 | 356 | const struct sr_datafeed_packet *packet) |
2953961c | 357 | { |
04abfae9 JH |
358 | assert(_session); |
359 | _session->data_feed_in(sdi, packet); | |
2953961c | 360 | } |
51e77110 JH |
361 | |
362 | } // namespace pv |