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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 | ||
269528f5 | 21 | #ifdef ENABLE_DECODE |
4e5a4405 | 22 | #include <libsigrokdecode/libsigrokdecode.h> |
269528f5 | 23 | #endif |
4e5a4405 | 24 | |
2953961c JH |
25 | #include "sigsession.h" |
26 | ||
dc0867ff | 27 | #include "devicemanager.h" |
119aff65 | 28 | |
1b1ec774 JH |
29 | #include "data/analog.h" |
30 | #include "data/analogsnapshot.h" | |
6e89374a | 31 | #include "data/decoderstack.h" |
1b1ec774 JH |
32 | #include "data/logic.h" |
33 | #include "data/logicsnapshot.h" | |
7491a29f | 34 | #include "data/decode/decoder.h" |
82c7f640 | 35 | |
aba1dd16 | 36 | #include "view/analogsignal.h" |
b9329558 | 37 | #include "view/decodetrace.h" |
8d634081 | 38 | #include "view/logicsignal.h" |
28a4c9c5 | 39 | |
3b68d03d JH |
40 | #include <cassert> |
41 | #include <mutex> | |
e92cd4e4 JH |
42 | #include <stdexcept> |
43 | ||
728e5ef7 JH |
44 | #include <sys/stat.h> |
45 | ||
79efbc53 JH |
46 | #include <QDebug> |
47 | ||
e8d00928 ML |
48 | #include <libsigrok/libsigrok.hpp> |
49 | ||
aca64cac JH |
50 | using boost::shared_lock; |
51 | using boost::shared_mutex; | |
52 | using boost::unique_lock; | |
53 | ||
f9abf97e | 54 | using std::dynamic_pointer_cast; |
d2344534 | 55 | using std::function; |
3b68d03d | 56 | using std::lock_guard; |
d873f4d6 | 57 | using std::list; |
819f4c25 | 58 | using std::map; |
aca64cac | 59 | using std::mutex; |
02412f0b | 60 | using std::set; |
f9abf97e | 61 | using std::shared_ptr; |
819f4c25 JH |
62 | using std::string; |
63 | using std::vector; | |
28a4c9c5 | 64 | |
e8d00928 ML |
65 | using sigrok::Analog; |
66 | using sigrok::Channel; | |
67 | using sigrok::ChannelType; | |
68 | using sigrok::ConfigKey; | |
69 | using sigrok::DatafeedCallbackFunction; | |
70 | using sigrok::Device; | |
71 | using sigrok::Error; | |
72 | using sigrok::HardwareDevice; | |
73 | using sigrok::Header; | |
74 | using sigrok::Logic; | |
75 | using sigrok::Meta; | |
76 | using sigrok::Packet; | |
77 | using sigrok::PacketPayload; | |
78 | using sigrok::Session; | |
79 | using sigrok::SessionDevice; | |
80 | ||
81 | using Glib::VariantBase; | |
82 | using Glib::Variant; | |
51e77110 | 83 | |
e8d00928 | 84 | namespace pv { |
dc0867ff JH |
85 | SigSession::SigSession(DeviceManager &device_manager) : |
86 | _device_manager(device_manager), | |
1f4caa77 | 87 | _session(device_manager.context()->create_session()), |
5b7cf66c | 88 | _capture_state(Stopped) |
2953961c | 89 | { |
d873f4d6 | 90 | set_default_device(); |
2953961c JH |
91 | } |
92 | ||
93 | SigSession::~SigSession() | |
94 | { | |
04463625 | 95 | // Stop and join to the thread |
5b7cf66c | 96 | stop_capture(); |
2953961c JH |
97 | } |
98 | ||
4cb0b033 JH |
99 | DeviceManager& SigSession::device_manager() |
100 | { | |
101 | return _device_manager; | |
102 | } | |
103 | ||
104 | const DeviceManager& SigSession::device_manager() const | |
105 | { | |
106 | return _device_manager; | |
107 | } | |
108 | ||
1f4caa77 JH |
109 | const shared_ptr<sigrok::Session>& SigSession::session() const |
110 | { | |
111 | return _session; | |
112 | } | |
113 | ||
d260d425 | 114 | shared_ptr<Device> SigSession::device() const |
dc0867ff | 115 | { |
e8d00928 | 116 | return _device; |
dc0867ff JH |
117 | } |
118 | ||
e8d00928 | 119 | void SigSession::set_device(shared_ptr<Device> device) |
d64d1596 | 120 | { |
82596f46 JH |
121 | // Ensure we are not capturing before setting the device |
122 | stop_capture(); | |
123 | ||
e8d00928 ML |
124 | // Are we setting a session device? |
125 | auto session_device = dynamic_pointer_cast<SessionDevice>(device); | |
126 | // Did we have a session device selected previously? | |
127 | auto prev_session_device = dynamic_pointer_cast<SessionDevice>(_device); | |
128 | ||
129 | if (_device) { | |
1f4caa77 | 130 | _session->remove_datafeed_callbacks(); |
e8d00928 ML |
131 | if (!prev_session_device) { |
132 | _device->close(); | |
1f4caa77 | 133 | _session->remove_devices(); |
e8d00928 | 134 | } |
ae2d1bc5 JH |
135 | } |
136 | ||
e8d00928 | 137 | if (session_device) |
1f4caa77 | 138 | _session = session_device->parent(); |
e8d00928 ML |
139 | |
140 | _device = device; | |
ae2d1bc5 | 141 | _decode_traces.clear(); |
85843b14 | 142 | |
e8d00928 ML |
143 | if (device) { |
144 | if (!session_device) | |
145 | { | |
1f4caa77 | 146 | _session = _device_manager.context()->create_session(); |
e8d00928 | 147 | device->open(); |
1f4caa77 | 148 | _session->add_device(device); |
e8d00928 | 149 | } |
1f4caa77 | 150 | _session->add_datafeed_callback([=] |
e8d00928 ML |
151 | (shared_ptr<Device> device, shared_ptr<Packet> packet) { |
152 | data_feed_in(device, packet); | |
153 | }); | |
154 | update_signals(device); | |
ae2d1bc5 JH |
155 | } |
156 | } | |
85843b14 | 157 | |
e8d00928 | 158 | void SigSession::set_file(const string &name) |
ae2d1bc5 | 159 | { |
1f4caa77 JH |
160 | _session = _device_manager.context()->load_session(name); |
161 | _device = _session->devices()[0]; | |
e8d00928 | 162 | _decode_traces.clear(); |
1f4caa77 | 163 | _session->add_datafeed_callback([=] |
e8d00928 ML |
164 | (shared_ptr<Device> device, shared_ptr<Packet> packet) { |
165 | data_feed_in(device, packet); | |
166 | }); | |
a4cf020a | 167 | _device_manager.update_display_name(_device); |
e8d00928 | 168 | update_signals(_device); |
d64d1596 JH |
169 | } |
170 | ||
6fd0b639 JH |
171 | void SigSession::set_default_device() |
172 | { | |
e8d00928 ML |
173 | shared_ptr<HardwareDevice> default_device; |
174 | const list< shared_ptr<HardwareDevice> > &devices = | |
6fd0b639 JH |
175 | _device_manager.devices(); |
176 | ||
177 | if (!devices.empty()) { | |
178 | // Fall back to the first device in the list. | |
179 | default_device = devices.front(); | |
180 | ||
181 | // Try and find the demo device and select that by default | |
e8d00928 ML |
182 | for (shared_ptr<HardwareDevice> dev : devices) |
183 | if (dev->driver()->name().compare("demo") == 0) { | |
6fd0b639 JH |
184 | default_device = dev; |
185 | break; | |
186 | } | |
dc0867ff | 187 | |
e8d00928 ML |
188 | set_device(default_device); |
189 | } | |
dc0867ff JH |
190 | } |
191 | ||
5b7cf66c JH |
192 | SigSession::capture_state SigSession::get_capture_state() const |
193 | { | |
949f8050 | 194 | lock_guard<mutex> lock(_sampling_mutex); |
5b7cf66c JH |
195 | return _capture_state; |
196 | } | |
197 | ||
d99dc9f2 | 198 | void SigSession::start_capture(function<void (const QString)> error_handler) |
2e2946fe | 199 | { |
5b7cf66c JH |
200 | stop_capture(); |
201 | ||
d64d1596 | 202 | // Check that a device instance has been selected. |
e8d00928 | 203 | if (!_device) { |
d64d1596 JH |
204 | qDebug() << "No device selected"; |
205 | return; | |
206 | } | |
207 | ||
6ac6242b | 208 | // Check that at least one channel is enabled |
e8d00928 ML |
209 | auto channels = _device->channels(); |
210 | bool enabled = std::any_of(channels.begin(), channels.end(), | |
211 | [](shared_ptr<Channel> channel) { return channel->enabled(); }); | |
9c48fa57 | 212 | |
e8d00928 | 213 | if (!enabled) { |
4871ed92 | 214 | error_handler(tr("No channels enabled.")); |
9c48fa57 JH |
215 | return; |
216 | } | |
217 | ||
218 | // Begin the session | |
3b68d03d | 219 | _sampling_thread = std::thread( |
e8d00928 | 220 | &SigSession::sample_thread_proc, this, _device, |
19adbc2c | 221 | error_handler); |
2e2946fe JH |
222 | } |
223 | ||
5b7cf66c JH |
224 | void SigSession::stop_capture() |
225 | { | |
04463625 | 226 | if (get_capture_state() != Stopped) |
1f4caa77 | 227 | _session->stop(); |
5b7cf66c JH |
228 | |
229 | // Check that sampling stopped | |
6d483b8b MC |
230 | if (_sampling_thread.joinable()) |
231 | _sampling_thread.join(); | |
5b7cf66c JH |
232 | } |
233 | ||
02412f0b JH |
234 | set< shared_ptr<data::SignalData> > SigSession::get_data() const |
235 | { | |
aca64cac | 236 | shared_lock<shared_mutex> lock(_signals_mutex); |
02412f0b | 237 | set< shared_ptr<data::SignalData> > data; |
d9aecf1f | 238 | for (const shared_ptr<view::Signal> sig : _signals) { |
02412f0b JH |
239 | assert(sig); |
240 | data.insert(sig->data()); | |
241 | } | |
242 | ||
243 | return data; | |
244 | } | |
245 | ||
aca64cac | 246 | boost::shared_mutex& SigSession::signals_mutex() const |
c3a740dd JH |
247 | { |
248 | return _signals_mutex; | |
249 | } | |
250 | ||
251 | const vector< shared_ptr<view::Signal> >& SigSession::signals() const | |
2e2946fe JH |
252 | { |
253 | return _signals; | |
254 | } | |
255 | ||
269528f5 | 256 | #ifdef ENABLE_DECODE |
4e5a4405 | 257 | bool SigSession::add_decoder(srd_decoder *const dec) |
82c7f640 | 258 | { |
6ac6242b | 259 | map<const srd_channel*, shared_ptr<view::LogicSignal> > channels; |
7491a29f | 260 | shared_ptr<data::DecoderStack> decoder_stack; |
4e5a4405 | 261 | |
e92cd4e4 | 262 | try |
82c7f640 | 263 | { |
aca64cac | 264 | lock_guard<boost::shared_mutex> lock(_signals_mutex); |
e0fc5810 | 265 | |
4e5a4405 | 266 | // Create the decoder |
7491a29f | 267 | decoder_stack = shared_ptr<data::DecoderStack>( |
bdc5c3b0 | 268 | new data::DecoderStack(*this, dec)); |
4e5a4405 | 269 | |
6ac6242b ML |
270 | // Make a list of all the channels |
271 | std::vector<const srd_channel*> all_channels; | |
8bd26d8b | 272 | for(const GSList *i = dec->channels; i; i = i->next) |
6ac6242b | 273 | all_channels.push_back((const srd_channel*)i->data); |
8bd26d8b | 274 | for(const GSList *i = dec->opt_channels; i; i = i->next) |
6ac6242b | 275 | all_channels.push_back((const srd_channel*)i->data); |
d2f46d27 | 276 | |
6ac6242b ML |
277 | // Auto select the initial channels |
278 | for (const srd_channel *pdch : all_channels) | |
d9aecf1f | 279 | for (shared_ptr<view::Signal> s : _signals) |
4e5a4405 JH |
280 | { |
281 | shared_ptr<view::LogicSignal> l = | |
282 | dynamic_pointer_cast<view::LogicSignal>(s); | |
8bd26d8b | 283 | if (l && QString::fromUtf8(pdch->name). |
27e8df22 | 284 | toLower().contains( |
0a47889b | 285 | l->name().toLower())) |
6ac6242b | 286 | channels[pdch] = l; |
4e5a4405 | 287 | } |
4e5a4405 | 288 | |
7491a29f JH |
289 | assert(decoder_stack); |
290 | assert(!decoder_stack->stack().empty()); | |
291 | assert(decoder_stack->stack().front()); | |
6ac6242b | 292 | decoder_stack->stack().front()->set_channels(channels); |
4e5a4405 JH |
293 | |
294 | // Create the decode signal | |
b9329558 | 295 | shared_ptr<view::DecodeTrace> d( |
7491a29f | 296 | new view::DecodeTrace(*this, decoder_stack, |
06bb4e6a | 297 | _decode_traces.size())); |
82c7f640 JH |
298 | _decode_traces.push_back(d); |
299 | } | |
e92cd4e4 JH |
300 | catch(std::runtime_error e) |
301 | { | |
302 | return false; | |
303 | } | |
304 | ||
82c7f640 | 305 | signals_changed(); |
e92cd4e4 | 306 | |
7491a29f JH |
307 | // Do an initial decode |
308 | decoder_stack->begin_decode(); | |
309 | ||
e92cd4e4 | 310 | return true; |
82c7f640 JH |
311 | } |
312 | ||
b9329558 | 313 | vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const |
38eeddea | 314 | { |
aca64cac | 315 | shared_lock<shared_mutex> lock(_signals_mutex); |
38eeddea JH |
316 | return _decode_traces; |
317 | } | |
318 | ||
b9329558 | 319 | void SigSession::remove_decode_signal(view::DecodeTrace *signal) |
c51482b3 | 320 | { |
f46e495e | 321 | for (auto i = _decode_traces.begin(); i != _decode_traces.end(); i++) |
c51482b3 JH |
322 | if ((*i).get() == signal) |
323 | { | |
324 | _decode_traces.erase(i); | |
325 | signals_changed(); | |
326 | return; | |
327 | } | |
328 | } | |
269528f5 | 329 | #endif |
c51482b3 | 330 | |
6ac96c2e JH |
331 | void SigSession::set_capture_state(capture_state state) |
332 | { | |
949f8050 | 333 | lock_guard<mutex> lock(_sampling_mutex); |
2b49eeb0 | 334 | const bool changed = _capture_state != state; |
6ac96c2e | 335 | _capture_state = state; |
2b49eeb0 JH |
336 | if(changed) |
337 | capture_state_changed(state); | |
6ac96c2e JH |
338 | } |
339 | ||
e8d00928 | 340 | void SigSession::update_signals(shared_ptr<Device> device) |
b087ba7f | 341 | { |
e8d00928 | 342 | assert(device); |
b087ba7f JH |
343 | assert(_capture_state == Stopped); |
344 | ||
82c7f640 JH |
345 | // Clear the decode traces |
346 | _decode_traces.clear(); | |
347 | ||
b087ba7f | 348 | // Detect what data types we will receive |
e8d00928 ML |
349 | auto channels = device->channels(); |
350 | unsigned int logic_channel_count = std::count_if( | |
351 | channels.begin(), channels.end(), | |
352 | [] (shared_ptr<Channel> channel) { | |
353 | return channel->type() == ChannelType::LOGIC; }); | |
b087ba7f | 354 | |
bb2cdfff | 355 | // Create data containers for the logic data snapshots |
b087ba7f JH |
356 | { |
357 | lock_guard<mutex> data_lock(_data_mutex); | |
358 | ||
359 | _logic_data.reset(); | |
6ac6242b | 360 | if (logic_channel_count != 0) { |
b087ba7f | 361 | _logic_data.reset(new data::Logic( |
6ac6242b | 362 | logic_channel_count)); |
b087ba7f JH |
363 | assert(_logic_data); |
364 | } | |
b087ba7f JH |
365 | } |
366 | ||
367 | // Make the Signals list | |
fbd3e234 | 368 | { |
aca64cac | 369 | unique_lock<shared_mutex> lock(_signals_mutex); |
b087ba7f JH |
370 | |
371 | _signals.clear(); | |
372 | ||
e8d00928 | 373 | for (auto channel : device->channels()) { |
39e680c2 | 374 | shared_ptr<view::Signal> signal; |
39e680c2 | 375 | |
e8d00928 | 376 | switch(channel->type()->id()) { |
4871ed92 | 377 | case SR_CHANNEL_LOGIC: |
39e680c2 | 378 | signal = shared_ptr<view::Signal>( |
b86aa8f4 JH |
379 | new view::LogicSignal(*this, device, |
380 | channel, _logic_data)); | |
39e680c2 JH |
381 | break; |
382 | ||
4871ed92 | 383 | case SR_CHANNEL_ANALOG: |
bb2cdfff JH |
384 | { |
385 | shared_ptr<data::Analog> data( | |
386 | new data::Analog()); | |
39e680c2 | 387 | signal = shared_ptr<view::Signal>( |
b86aa8f4 JH |
388 | new view::AnalogSignal( |
389 | *this, channel, data)); | |
39e680c2 | 390 | break; |
bb2cdfff | 391 | } |
39e680c2 JH |
392 | |
393 | default: | |
394 | assert(0); | |
395 | break; | |
b087ba7f | 396 | } |
39e680c2 JH |
397 | |
398 | assert(signal); | |
399 | _signals.push_back(signal); | |
b087ba7f | 400 | } |
39e680c2 | 401 | |
fbd3e234 | 402 | } |
b087ba7f JH |
403 | |
404 | signals_changed(); | |
405 | } | |
406 | ||
6ac6242b | 407 | shared_ptr<view::Signal> SigSession::signal_from_channel( |
e8d00928 | 408 | shared_ptr<Channel> channel) const |
3ddcc083 | 409 | { |
aca64cac | 410 | lock_guard<boost::shared_mutex> lock(_signals_mutex); |
d9aecf1f | 411 | for (shared_ptr<view::Signal> sig : _signals) { |
3ddcc083 | 412 | assert(sig); |
6ac6242b | 413 | if (sig->channel() == channel) |
3ddcc083 JH |
414 | return sig; |
415 | } | |
416 | return shared_ptr<view::Signal>(); | |
417 | } | |
418 | ||
e8d00928 | 419 | void SigSession::read_sample_rate(shared_ptr<Device> device) |
deef291c | 420 | { |
e8d00928 ML |
421 | uint64_t sample_rate = VariantBase::cast_dynamic<Variant<guint64>>( |
422 | device->config_get(ConfigKey::SAMPLERATE)).get(); | |
deef291c | 423 | |
bb2cdfff JH |
424 | // Set the sample rate of all data |
425 | const set< shared_ptr<data::SignalData> > data_set = get_data(); | |
d9aecf1f | 426 | for (shared_ptr<data::SignalData> data : data_set) { |
bb2cdfff JH |
427 | assert(data); |
428 | data->set_samplerate(sample_rate); | |
429 | } | |
deef291c JH |
430 | } |
431 | ||
e8d00928 | 432 | void SigSession::sample_thread_proc(shared_ptr<Device> device, |
f2edb557 | 433 | function<void (const QString)> error_handler) |
274d4f13 | 434 | { |
e8d00928 | 435 | assert(device); |
f2edb557 | 436 | assert(error_handler); |
be73bdfa | 437 | |
e8d00928 | 438 | read_sample_rate(device); |
274d4f13 | 439 | |
ae2d1bc5 | 440 | try { |
1f4caa77 | 441 | _session->start(); |
e8d00928 ML |
442 | } catch(Error e) { |
443 | error_handler(e.what()); | |
eec446e1 JH |
444 | return; |
445 | } | |
446 | ||
1f4caa77 | 447 | set_capture_state(_session->trigger() ? |
07dcf561 | 448 | AwaitingTrigger : Running); |
eec446e1 | 449 | |
1f4caa77 | 450 | _session->run(); |
eec446e1 | 451 | set_capture_state(Stopped); |
1a2fe44c JH |
452 | |
453 | // Confirm that SR_DF_END was received | |
bb2cdfff JH |
454 | if (_cur_logic_snapshot) |
455 | { | |
456 | qDebug("SR_DF_END was not received."); | |
457 | assert(0); | |
458 | } | |
eec446e1 JH |
459 | } |
460 | ||
e8d00928 | 461 | void SigSession::feed_in_header(shared_ptr<Device> device) |
eec446e1 | 462 | { |
e8d00928 | 463 | read_sample_rate(device); |
be73bdfa JH |
464 | } |
465 | ||
e8d00928 ML |
466 | void SigSession::feed_in_meta(shared_ptr<Device> device, |
467 | shared_ptr<Meta> meta) | |
be73bdfa | 468 | { |
e8d00928 | 469 | (void)device; |
94fe58ef | 470 | |
e8d00928 ML |
471 | for (auto entry : meta->config()) { |
472 | switch (entry.first->id()) { | |
be73bdfa JH |
473 | case SR_CONF_SAMPLERATE: |
474 | /// @todo handle samplerate changes | |
be73bdfa JH |
475 | break; |
476 | default: | |
477 | // Unknown metadata is not an error. | |
478 | break; | |
479 | } | |
aba1dd16 | 480 | } |
74043039 JH |
481 | |
482 | signals_changed(); | |
aba1dd16 JH |
483 | } |
484 | ||
82f50b10 JH |
485 | void SigSession::feed_in_frame_begin() |
486 | { | |
487 | if (_cur_logic_snapshot || !_cur_analog_snapshots.empty()) | |
488 | frame_began(); | |
489 | } | |
490 | ||
e8d00928 | 491 | void SigSession::feed_in_logic(shared_ptr<Logic> logic) |
9c112671 JH |
492 | { |
493 | lock_guard<mutex> lock(_data_mutex); | |
79efbc53 JH |
494 | |
495 | if (!_logic_data) | |
9c112671 | 496 | { |
79efbc53 JH |
497 | qDebug() << "Unexpected logic packet"; |
498 | return; | |
499 | } | |
be73bdfa | 500 | |
79efbc53 JH |
501 | if (!_cur_logic_snapshot) |
502 | { | |
bb2cdfff | 503 | // This could be the first packet after a trigger |
2b49eeb0 JH |
504 | set_capture_state(Running); |
505 | ||
e8d00928 ML |
506 | // Get sample limit. |
507 | uint64_t sample_limit; | |
508 | try { | |
509 | sample_limit = VariantBase::cast_dynamic<Variant<guint64>>( | |
510 | _device->config_get(ConfigKey::LIMIT_SAMPLES)).get(); | |
511 | } catch (Error) { | |
512 | sample_limit = 0; | |
513 | } | |
514 | ||
9c112671 | 515 | // Create a new data snapshot |
1b1ec774 | 516 | _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>( |
e8d00928 | 517 | new data::LogicSnapshot(logic, sample_limit)); |
9c112671 | 518 | _logic_data->push_snapshot(_cur_logic_snapshot); |
82f50b10 JH |
519 | |
520 | // @todo Putting this here means that only listeners querying | |
521 | // for logic will be notified. Currently the only user of | |
522 | // frame_began is DecoderStack, but in future we need to signal | |
523 | // this after both analog and logic sweeps have begun. | |
524 | frame_began(); | |
9c112671 JH |
525 | } |
526 | else | |
527 | { | |
528 | // Append to the existing data snapshot | |
529 | _cur_logic_snapshot->append_payload(logic); | |
530 | } | |
531 | ||
1f374035 | 532 | data_received(); |
9c112671 JH |
533 | } |
534 | ||
e8d00928 | 535 | void SigSession::feed_in_analog(shared_ptr<Analog> analog) |
aba1dd16 JH |
536 | { |
537 | lock_guard<mutex> lock(_data_mutex); | |
79efbc53 | 538 | |
e8d00928 ML |
539 | const vector<shared_ptr<Channel>> channels = analog->channels(); |
540 | const unsigned int channel_count = channels.size(); | |
541 | const size_t sample_count = analog->num_samples() / channel_count; | |
542 | const float *data = analog->data_pointer(); | |
bb2cdfff | 543 | bool sweep_beginning = false; |
be73bdfa | 544 | |
e8d00928 | 545 | for (auto channel : channels) |
79efbc53 | 546 | { |
bb2cdfff | 547 | shared_ptr<data::AnalogSnapshot> snapshot; |
2b49eeb0 | 548 | |
6ac6242b | 549 | // Try to get the snapshot of the channel |
e8d00928 | 550 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSnapshot> >:: |
6ac6242b | 551 | iterator iter = _cur_analog_snapshots.find(channel); |
bb2cdfff JH |
552 | if (iter != _cur_analog_snapshots.end()) |
553 | snapshot = (*iter).second; | |
554 | else | |
555 | { | |
556 | // If no snapshot was found, this means we havn't | |
557 | // created one yet. i.e. this is the first packet | |
558 | // in the sweep containing this snapshot. | |
559 | sweep_beginning = true; | |
560 | ||
e8d00928 ML |
561 | // Get sample limit. |
562 | uint64_t sample_limit; | |
563 | try { | |
564 | sample_limit = VariantBase::cast_dynamic<Variant<guint64>>( | |
565 | _device->config_get(ConfigKey::LIMIT_SAMPLES)).get(); | |
566 | } catch (Error) { | |
567 | sample_limit = 0; | |
568 | } | |
569 | ||
6ac6242b | 570 | // Create a snapshot, keep it in the maps of channels |
bb2cdfff | 571 | snapshot = shared_ptr<data::AnalogSnapshot>( |
e8d00928 | 572 | new data::AnalogSnapshot(sample_limit)); |
6ac6242b | 573 | _cur_analog_snapshots[channel] = snapshot; |
bb2cdfff | 574 | |
6ac6242b | 575 | // Find the annalog data associated with the channel |
bb2cdfff JH |
576 | shared_ptr<view::AnalogSignal> sig = |
577 | dynamic_pointer_cast<view::AnalogSignal>( | |
6ac6242b | 578 | signal_from_channel(channel)); |
bb2cdfff JH |
579 | assert(sig); |
580 | ||
581 | shared_ptr<data::Analog> data(sig->analog_data()); | |
582 | assert(data); | |
583 | ||
584 | // Push the snapshot into the analog data. | |
585 | data->push_snapshot(snapshot); | |
586 | } | |
587 | ||
588 | assert(snapshot); | |
589 | ||
590 | // Append the samples in the snapshot | |
591 | snapshot->append_interleaved_samples(data++, sample_count, | |
6ac6242b | 592 | channel_count); |
aba1dd16 | 593 | } |
bb2cdfff JH |
594 | |
595 | if (sweep_beginning) { | |
596 | // This could be the first packet after a trigger | |
597 | set_capture_state(Running); | |
aba1dd16 JH |
598 | } |
599 | ||
1f374035 | 600 | data_received(); |
aba1dd16 | 601 | } |
9c112671 | 602 | |
e8d00928 | 603 | void SigSession::data_feed_in(shared_ptr<Device> device, shared_ptr<Packet> packet) |
b0e1d01d | 604 | { |
e8d00928 | 605 | assert(device); |
b0e1d01d JH |
606 | assert(packet); |
607 | ||
e8d00928 | 608 | switch (packet->type()->id()) { |
b0e1d01d | 609 | case SR_DF_HEADER: |
e8d00928 | 610 | feed_in_header(device); |
b0e1d01d JH |
611 | break; |
612 | ||
be73bdfa | 613 | case SR_DF_META: |
e8d00928 | 614 | feed_in_meta(device, dynamic_pointer_cast<Meta>(packet->payload())); |
aba1dd16 JH |
615 | break; |
616 | ||
82f50b10 JH |
617 | case SR_DF_FRAME_BEGIN: |
618 | feed_in_frame_begin(); | |
619 | break; | |
620 | ||
2e2946fe | 621 | case SR_DF_LOGIC: |
e8d00928 | 622 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); |
2953961c JH |
623 | break; |
624 | ||
aba1dd16 | 625 | case SR_DF_ANALOG: |
e8d00928 | 626 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); |
aba1dd16 JH |
627 | break; |
628 | ||
2953961c | 629 | case SR_DF_END: |
2e2946fe JH |
630 | { |
631 | { | |
632 | lock_guard<mutex> lock(_data_mutex); | |
633 | _cur_logic_snapshot.reset(); | |
bb2cdfff | 634 | _cur_analog_snapshots.clear(); |
2e2946fe | 635 | } |
1f374035 | 636 | frame_ended(); |
2953961c JH |
637 | break; |
638 | } | |
adb0a983 ML |
639 | default: |
640 | break; | |
2e2946fe | 641 | } |
2953961c JH |
642 | } |
643 | ||
51e77110 | 644 | } // namespace pv |