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Commit | Line | Data |
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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 | ||
f9abf97e | 50 | using std::dynamic_pointer_cast; |
d2344534 | 51 | using std::function; |
3b68d03d JH |
52 | using std::lock_guard; |
53 | using std::mutex; | |
d873f4d6 | 54 | using std::list; |
819f4c25 | 55 | using std::map; |
02412f0b | 56 | using std::set; |
f9abf97e | 57 | using std::shared_ptr; |
819f4c25 JH |
58 | using std::string; |
59 | using std::vector; | |
28a4c9c5 | 60 | |
e8d00928 ML |
61 | using sigrok::Analog; |
62 | using sigrok::Channel; | |
63 | using sigrok::ChannelType; | |
64 | using sigrok::ConfigKey; | |
65 | using sigrok::DatafeedCallbackFunction; | |
66 | using sigrok::Device; | |
67 | using sigrok::Error; | |
68 | using sigrok::HardwareDevice; | |
69 | using sigrok::Header; | |
70 | using sigrok::Logic; | |
71 | using sigrok::Meta; | |
72 | using sigrok::Packet; | |
73 | using sigrok::PacketPayload; | |
74 | using sigrok::Session; | |
75 | using sigrok::SessionDevice; | |
76 | ||
77 | using Glib::VariantBase; | |
78 | using Glib::Variant; | |
51e77110 | 79 | |
e8d00928 | 80 | namespace pv { |
2953961c | 81 | |
bb3030b3 | 82 | // TODO: This should not be necessary |
e8d00928 | 83 | shared_ptr<Session> SigSession::_sr_session = nullptr; |
bb3030b3 | 84 | |
dc0867ff JH |
85 | SigSession::SigSession(DeviceManager &device_manager) : |
86 | _device_manager(device_manager), | |
5b7cf66c | 87 | _capture_state(Stopped) |
2953961c JH |
88 | { |
89 | // TODO: This should not be necessary | |
e8d00928 | 90 | _sr_session = device_manager.context()->create_session(); |
d873f4d6 JH |
91 | |
92 | set_default_device(); | |
2953961c JH |
93 | } |
94 | ||
95 | SigSession::~SigSession() | |
96 | { | |
04463625 | 97 | // Stop and join to the thread |
5b7cf66c | 98 | stop_capture(); |
2953961c JH |
99 | } |
100 | ||
d260d425 | 101 | shared_ptr<Device> SigSession::device() const |
dc0867ff | 102 | { |
e8d00928 | 103 | return _device; |
dc0867ff JH |
104 | } |
105 | ||
e8d00928 | 106 | void SigSession::set_device(shared_ptr<Device> device) |
d64d1596 | 107 | { |
82596f46 JH |
108 | // Ensure we are not capturing before setting the device |
109 | stop_capture(); | |
110 | ||
e8d00928 ML |
111 | // Are we setting a session device? |
112 | auto session_device = dynamic_pointer_cast<SessionDevice>(device); | |
113 | // Did we have a session device selected previously? | |
114 | auto prev_session_device = dynamic_pointer_cast<SessionDevice>(_device); | |
115 | ||
116 | if (_device) { | |
117 | _sr_session->remove_datafeed_callbacks(); | |
118 | if (!prev_session_device) { | |
119 | _device->close(); | |
120 | _sr_session->remove_devices(); | |
121 | } | |
ae2d1bc5 JH |
122 | } |
123 | ||
e8d00928 ML |
124 | if (session_device) |
125 | _sr_session = session_device->parent(); | |
126 | ||
127 | _device = device; | |
ae2d1bc5 | 128 | _decode_traces.clear(); |
85843b14 | 129 | |
e8d00928 ML |
130 | if (device) { |
131 | if (!session_device) | |
132 | { | |
133 | _sr_session = _device_manager.context()->create_session(); | |
134 | device->open(); | |
135 | _sr_session->add_device(device); | |
136 | } | |
137 | _sr_session->add_datafeed_callback([=] | |
138 | (shared_ptr<Device> device, shared_ptr<Packet> packet) { | |
139 | data_feed_in(device, packet); | |
140 | }); | |
141 | update_signals(device); | |
ae2d1bc5 JH |
142 | } |
143 | } | |
85843b14 | 144 | |
e8d00928 | 145 | void SigSession::set_file(const string &name) |
ae2d1bc5 | 146 | { |
e8d00928 ML |
147 | _sr_session = _device_manager.context()->load_session(name); |
148 | _device = _sr_session->devices()[0]; | |
149 | _decode_traces.clear(); | |
150 | _sr_session->add_datafeed_callback([=] | |
151 | (shared_ptr<Device> device, shared_ptr<Packet> packet) { | |
152 | data_feed_in(device, packet); | |
153 | }); | |
a4cf020a | 154 | _device_manager.update_display_name(_device); |
e8d00928 | 155 | update_signals(_device); |
d64d1596 JH |
156 | } |
157 | ||
6fd0b639 JH |
158 | void SigSession::set_default_device() |
159 | { | |
e8d00928 ML |
160 | shared_ptr<HardwareDevice> default_device; |
161 | const list< shared_ptr<HardwareDevice> > &devices = | |
6fd0b639 JH |
162 | _device_manager.devices(); |
163 | ||
164 | if (!devices.empty()) { | |
165 | // Fall back to the first device in the list. | |
166 | default_device = devices.front(); | |
167 | ||
168 | // Try and find the demo device and select that by default | |
e8d00928 ML |
169 | for (shared_ptr<HardwareDevice> dev : devices) |
170 | if (dev->driver()->name().compare("demo") == 0) { | |
6fd0b639 JH |
171 | default_device = dev; |
172 | break; | |
173 | } | |
dc0867ff | 174 | |
e8d00928 ML |
175 | set_device(default_device); |
176 | } | |
dc0867ff JH |
177 | } |
178 | ||
5b7cf66c JH |
179 | SigSession::capture_state SigSession::get_capture_state() const |
180 | { | |
949f8050 | 181 | lock_guard<mutex> lock(_sampling_mutex); |
5b7cf66c JH |
182 | return _capture_state; |
183 | } | |
184 | ||
d99dc9f2 | 185 | void SigSession::start_capture(function<void (const QString)> error_handler) |
2e2946fe | 186 | { |
5b7cf66c JH |
187 | stop_capture(); |
188 | ||
d64d1596 | 189 | // Check that a device instance has been selected. |
e8d00928 | 190 | if (!_device) { |
d64d1596 JH |
191 | qDebug() << "No device selected"; |
192 | return; | |
193 | } | |
194 | ||
6ac6242b | 195 | // Check that at least one channel is enabled |
e8d00928 ML |
196 | auto channels = _device->channels(); |
197 | bool enabled = std::any_of(channels.begin(), channels.end(), | |
198 | [](shared_ptr<Channel> channel) { return channel->enabled(); }); | |
9c48fa57 | 199 | |
e8d00928 | 200 | if (!enabled) { |
4871ed92 | 201 | error_handler(tr("No channels enabled.")); |
9c48fa57 JH |
202 | return; |
203 | } | |
204 | ||
205 | // Begin the session | |
3b68d03d | 206 | _sampling_thread = std::thread( |
e8d00928 | 207 | &SigSession::sample_thread_proc, this, _device, |
19adbc2c | 208 | error_handler); |
2e2946fe JH |
209 | } |
210 | ||
5b7cf66c JH |
211 | void SigSession::stop_capture() |
212 | { | |
04463625 | 213 | if (get_capture_state() != Stopped) |
e8d00928 | 214 | _sr_session->stop(); |
5b7cf66c JH |
215 | |
216 | // Check that sampling stopped | |
6d483b8b MC |
217 | if (_sampling_thread.joinable()) |
218 | _sampling_thread.join(); | |
5b7cf66c JH |
219 | } |
220 | ||
02412f0b JH |
221 | set< shared_ptr<data::SignalData> > SigSession::get_data() const |
222 | { | |
223 | lock_guard<mutex> lock(_signals_mutex); | |
224 | set< shared_ptr<data::SignalData> > data; | |
d9aecf1f | 225 | for (const shared_ptr<view::Signal> sig : _signals) { |
02412f0b JH |
226 | assert(sig); |
227 | data.insert(sig->data()); | |
228 | } | |
229 | ||
230 | return data; | |
231 | } | |
232 | ||
38eeddea | 233 | vector< shared_ptr<view::Signal> > SigSession::get_signals() const |
2e2946fe | 234 | { |
3868e5fa | 235 | lock_guard<mutex> lock(_signals_mutex); |
2e2946fe JH |
236 | return _signals; |
237 | } | |
238 | ||
269528f5 | 239 | #ifdef ENABLE_DECODE |
4e5a4405 | 240 | bool SigSession::add_decoder(srd_decoder *const dec) |
82c7f640 | 241 | { |
6ac6242b | 242 | map<const srd_channel*, shared_ptr<view::LogicSignal> > channels; |
7491a29f | 243 | shared_ptr<data::DecoderStack> decoder_stack; |
4e5a4405 | 244 | |
e92cd4e4 | 245 | try |
82c7f640 | 246 | { |
119aff65 | 247 | lock_guard<mutex> lock(_signals_mutex); |
e0fc5810 | 248 | |
4e5a4405 | 249 | // Create the decoder |
7491a29f | 250 | decoder_stack = shared_ptr<data::DecoderStack>( |
bdc5c3b0 | 251 | new data::DecoderStack(*this, dec)); |
4e5a4405 | 252 | |
6ac6242b ML |
253 | // Make a list of all the channels |
254 | std::vector<const srd_channel*> all_channels; | |
8bd26d8b | 255 | for(const GSList *i = dec->channels; i; i = i->next) |
6ac6242b | 256 | all_channels.push_back((const srd_channel*)i->data); |
8bd26d8b | 257 | for(const GSList *i = dec->opt_channels; i; i = i->next) |
6ac6242b | 258 | all_channels.push_back((const srd_channel*)i->data); |
d2f46d27 | 259 | |
6ac6242b ML |
260 | // Auto select the initial channels |
261 | for (const srd_channel *pdch : all_channels) | |
d9aecf1f | 262 | for (shared_ptr<view::Signal> s : _signals) |
4e5a4405 JH |
263 | { |
264 | shared_ptr<view::LogicSignal> l = | |
265 | dynamic_pointer_cast<view::LogicSignal>(s); | |
8bd26d8b | 266 | if (l && QString::fromUtf8(pdch->name). |
27e8df22 | 267 | toLower().contains( |
4e5a4405 | 268 | l->get_name().toLower())) |
6ac6242b | 269 | channels[pdch] = l; |
4e5a4405 | 270 | } |
4e5a4405 | 271 | |
7491a29f JH |
272 | assert(decoder_stack); |
273 | assert(!decoder_stack->stack().empty()); | |
274 | assert(decoder_stack->stack().front()); | |
6ac6242b | 275 | decoder_stack->stack().front()->set_channels(channels); |
4e5a4405 JH |
276 | |
277 | // Create the decode signal | |
b9329558 | 278 | shared_ptr<view::DecodeTrace> d( |
7491a29f | 279 | new view::DecodeTrace(*this, decoder_stack, |
06bb4e6a | 280 | _decode_traces.size())); |
82c7f640 JH |
281 | _decode_traces.push_back(d); |
282 | } | |
e92cd4e4 JH |
283 | catch(std::runtime_error e) |
284 | { | |
285 | return false; | |
286 | } | |
287 | ||
82c7f640 | 288 | signals_changed(); |
e92cd4e4 | 289 | |
7491a29f JH |
290 | // Do an initial decode |
291 | decoder_stack->begin_decode(); | |
292 | ||
e92cd4e4 | 293 | return true; |
82c7f640 JH |
294 | } |
295 | ||
b9329558 | 296 | vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const |
38eeddea JH |
297 | { |
298 | lock_guard<mutex> lock(_signals_mutex); | |
299 | return _decode_traces; | |
300 | } | |
301 | ||
b9329558 | 302 | void SigSession::remove_decode_signal(view::DecodeTrace *signal) |
c51482b3 | 303 | { |
f46e495e | 304 | for (auto i = _decode_traces.begin(); i != _decode_traces.end(); i++) |
c51482b3 JH |
305 | if ((*i).get() == signal) |
306 | { | |
307 | _decode_traces.erase(i); | |
308 | signals_changed(); | |
309 | return; | |
310 | } | |
311 | } | |
269528f5 | 312 | #endif |
c51482b3 | 313 | |
6ac96c2e JH |
314 | void SigSession::set_capture_state(capture_state state) |
315 | { | |
949f8050 | 316 | lock_guard<mutex> lock(_sampling_mutex); |
2b49eeb0 | 317 | const bool changed = _capture_state != state; |
6ac96c2e | 318 | _capture_state = state; |
2b49eeb0 JH |
319 | if(changed) |
320 | capture_state_changed(state); | |
6ac96c2e JH |
321 | } |
322 | ||
e8d00928 | 323 | void SigSession::update_signals(shared_ptr<Device> device) |
b087ba7f | 324 | { |
e8d00928 | 325 | assert(device); |
b087ba7f JH |
326 | assert(_capture_state == Stopped); |
327 | ||
82c7f640 JH |
328 | // Clear the decode traces |
329 | _decode_traces.clear(); | |
330 | ||
b087ba7f | 331 | // Detect what data types we will receive |
e8d00928 ML |
332 | auto channels = device->channels(); |
333 | unsigned int logic_channel_count = std::count_if( | |
334 | channels.begin(), channels.end(), | |
335 | [] (shared_ptr<Channel> channel) { | |
336 | return channel->type() == ChannelType::LOGIC; }); | |
b087ba7f | 337 | |
bb2cdfff | 338 | // Create data containers for the logic data snapshots |
b087ba7f JH |
339 | { |
340 | lock_guard<mutex> data_lock(_data_mutex); | |
341 | ||
342 | _logic_data.reset(); | |
6ac6242b | 343 | if (logic_channel_count != 0) { |
b087ba7f | 344 | _logic_data.reset(new data::Logic( |
6ac6242b | 345 | logic_channel_count)); |
b087ba7f JH |
346 | assert(_logic_data); |
347 | } | |
b087ba7f JH |
348 | } |
349 | ||
350 | // Make the Signals list | |
fbd3e234 | 351 | { |
b087ba7f JH |
352 | lock_guard<mutex> lock(_signals_mutex); |
353 | ||
354 | _signals.clear(); | |
355 | ||
e8d00928 | 356 | for (auto channel : device->channels()) { |
39e680c2 | 357 | shared_ptr<view::Signal> signal; |
39e680c2 | 358 | |
e8d00928 | 359 | switch(channel->type()->id()) { |
4871ed92 | 360 | case SR_CHANNEL_LOGIC: |
39e680c2 | 361 | signal = shared_ptr<view::Signal>( |
b86aa8f4 JH |
362 | new view::LogicSignal(*this, device, |
363 | channel, _logic_data)); | |
39e680c2 JH |
364 | break; |
365 | ||
4871ed92 | 366 | case SR_CHANNEL_ANALOG: |
bb2cdfff JH |
367 | { |
368 | shared_ptr<data::Analog> data( | |
369 | new data::Analog()); | |
39e680c2 | 370 | signal = shared_ptr<view::Signal>( |
b86aa8f4 JH |
371 | new view::AnalogSignal( |
372 | *this, channel, data)); | |
39e680c2 | 373 | break; |
bb2cdfff | 374 | } |
39e680c2 JH |
375 | |
376 | default: | |
377 | assert(0); | |
378 | break; | |
b087ba7f | 379 | } |
39e680c2 JH |
380 | |
381 | assert(signal); | |
382 | _signals.push_back(signal); | |
b087ba7f | 383 | } |
39e680c2 | 384 | |
fbd3e234 | 385 | } |
b087ba7f JH |
386 | |
387 | signals_changed(); | |
388 | } | |
389 | ||
6ac6242b | 390 | shared_ptr<view::Signal> SigSession::signal_from_channel( |
e8d00928 | 391 | shared_ptr<Channel> channel) const |
3ddcc083 JH |
392 | { |
393 | lock_guard<mutex> lock(_signals_mutex); | |
d9aecf1f | 394 | for (shared_ptr<view::Signal> sig : _signals) { |
3ddcc083 | 395 | assert(sig); |
6ac6242b | 396 | if (sig->channel() == channel) |
3ddcc083 JH |
397 | return sig; |
398 | } | |
399 | return shared_ptr<view::Signal>(); | |
400 | } | |
401 | ||
e8d00928 | 402 | void SigSession::read_sample_rate(shared_ptr<Device> device) |
deef291c | 403 | { |
e8d00928 ML |
404 | uint64_t sample_rate = VariantBase::cast_dynamic<Variant<guint64>>( |
405 | device->config_get(ConfigKey::SAMPLERATE)).get(); | |
deef291c | 406 | |
bb2cdfff JH |
407 | // Set the sample rate of all data |
408 | const set< shared_ptr<data::SignalData> > data_set = get_data(); | |
d9aecf1f | 409 | for (shared_ptr<data::SignalData> data : data_set) { |
bb2cdfff JH |
410 | assert(data); |
411 | data->set_samplerate(sample_rate); | |
412 | } | |
deef291c JH |
413 | } |
414 | ||
e8d00928 | 415 | void SigSession::sample_thread_proc(shared_ptr<Device> device, |
f2edb557 | 416 | function<void (const QString)> error_handler) |
274d4f13 | 417 | { |
e8d00928 | 418 | assert(device); |
f2edb557 | 419 | assert(error_handler); |
be73bdfa | 420 | |
e8d00928 | 421 | read_sample_rate(device); |
274d4f13 | 422 | |
ae2d1bc5 | 423 | try { |
e8d00928 ML |
424 | _sr_session->start(); |
425 | } catch(Error e) { | |
426 | error_handler(e.what()); | |
eec446e1 JH |
427 | return; |
428 | } | |
429 | ||
e8d00928 | 430 | set_capture_state(_sr_session->trigger() ? |
07dcf561 | 431 | AwaitingTrigger : Running); |
eec446e1 | 432 | |
e8d00928 | 433 | _sr_session->run(); |
eec446e1 | 434 | set_capture_state(Stopped); |
1a2fe44c JH |
435 | |
436 | // Confirm that SR_DF_END was received | |
bb2cdfff JH |
437 | if (_cur_logic_snapshot) |
438 | { | |
439 | qDebug("SR_DF_END was not received."); | |
440 | assert(0); | |
441 | } | |
eec446e1 JH |
442 | } |
443 | ||
e8d00928 | 444 | void SigSession::feed_in_header(shared_ptr<Device> device) |
eec446e1 | 445 | { |
e8d00928 | 446 | read_sample_rate(device); |
be73bdfa JH |
447 | } |
448 | ||
e8d00928 ML |
449 | void SigSession::feed_in_meta(shared_ptr<Device> device, |
450 | shared_ptr<Meta> meta) | |
be73bdfa | 451 | { |
e8d00928 | 452 | (void)device; |
94fe58ef | 453 | |
e8d00928 ML |
454 | for (auto entry : meta->config()) { |
455 | switch (entry.first->id()) { | |
be73bdfa JH |
456 | case SR_CONF_SAMPLERATE: |
457 | /// @todo handle samplerate changes | |
be73bdfa JH |
458 | break; |
459 | default: | |
460 | // Unknown metadata is not an error. | |
461 | break; | |
462 | } | |
aba1dd16 | 463 | } |
74043039 JH |
464 | |
465 | signals_changed(); | |
aba1dd16 JH |
466 | } |
467 | ||
82f50b10 JH |
468 | void SigSession::feed_in_frame_begin() |
469 | { | |
470 | if (_cur_logic_snapshot || !_cur_analog_snapshots.empty()) | |
471 | frame_began(); | |
472 | } | |
473 | ||
e8d00928 | 474 | void SigSession::feed_in_logic(shared_ptr<Logic> logic) |
9c112671 JH |
475 | { |
476 | lock_guard<mutex> lock(_data_mutex); | |
79efbc53 JH |
477 | |
478 | if (!_logic_data) | |
9c112671 | 479 | { |
79efbc53 JH |
480 | qDebug() << "Unexpected logic packet"; |
481 | return; | |
482 | } | |
be73bdfa | 483 | |
79efbc53 JH |
484 | if (!_cur_logic_snapshot) |
485 | { | |
bb2cdfff | 486 | // This could be the first packet after a trigger |
2b49eeb0 JH |
487 | set_capture_state(Running); |
488 | ||
e8d00928 ML |
489 | // Get sample limit. |
490 | uint64_t sample_limit; | |
491 | try { | |
492 | sample_limit = VariantBase::cast_dynamic<Variant<guint64>>( | |
493 | _device->config_get(ConfigKey::LIMIT_SAMPLES)).get(); | |
494 | } catch (Error) { | |
495 | sample_limit = 0; | |
496 | } | |
497 | ||
9c112671 | 498 | // Create a new data snapshot |
1b1ec774 | 499 | _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>( |
e8d00928 | 500 | new data::LogicSnapshot(logic, sample_limit)); |
9c112671 | 501 | _logic_data->push_snapshot(_cur_logic_snapshot); |
82f50b10 JH |
502 | |
503 | // @todo Putting this here means that only listeners querying | |
504 | // for logic will be notified. Currently the only user of | |
505 | // frame_began is DecoderStack, but in future we need to signal | |
506 | // this after both analog and logic sweeps have begun. | |
507 | frame_began(); | |
9c112671 JH |
508 | } |
509 | else | |
510 | { | |
511 | // Append to the existing data snapshot | |
512 | _cur_logic_snapshot->append_payload(logic); | |
513 | } | |
514 | ||
1f374035 | 515 | data_received(); |
9c112671 JH |
516 | } |
517 | ||
e8d00928 | 518 | void SigSession::feed_in_analog(shared_ptr<Analog> analog) |
aba1dd16 JH |
519 | { |
520 | lock_guard<mutex> lock(_data_mutex); | |
79efbc53 | 521 | |
e8d00928 ML |
522 | const vector<shared_ptr<Channel>> channels = analog->channels(); |
523 | const unsigned int channel_count = channels.size(); | |
524 | const size_t sample_count = analog->num_samples() / channel_count; | |
525 | const float *data = analog->data_pointer(); | |
bb2cdfff | 526 | bool sweep_beginning = false; |
be73bdfa | 527 | |
e8d00928 | 528 | for (auto channel : channels) |
79efbc53 | 529 | { |
bb2cdfff | 530 | shared_ptr<data::AnalogSnapshot> snapshot; |
2b49eeb0 | 531 | |
6ac6242b | 532 | // Try to get the snapshot of the channel |
e8d00928 | 533 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSnapshot> >:: |
6ac6242b | 534 | iterator iter = _cur_analog_snapshots.find(channel); |
bb2cdfff JH |
535 | if (iter != _cur_analog_snapshots.end()) |
536 | snapshot = (*iter).second; | |
537 | else | |
538 | { | |
539 | // If no snapshot was found, this means we havn't | |
540 | // created one yet. i.e. this is the first packet | |
541 | // in the sweep containing this snapshot. | |
542 | sweep_beginning = true; | |
543 | ||
e8d00928 ML |
544 | // Get sample limit. |
545 | uint64_t sample_limit; | |
546 | try { | |
547 | sample_limit = VariantBase::cast_dynamic<Variant<guint64>>( | |
548 | _device->config_get(ConfigKey::LIMIT_SAMPLES)).get(); | |
549 | } catch (Error) { | |
550 | sample_limit = 0; | |
551 | } | |
552 | ||
6ac6242b | 553 | // Create a snapshot, keep it in the maps of channels |
bb2cdfff | 554 | snapshot = shared_ptr<data::AnalogSnapshot>( |
e8d00928 | 555 | new data::AnalogSnapshot(sample_limit)); |
6ac6242b | 556 | _cur_analog_snapshots[channel] = snapshot; |
bb2cdfff | 557 | |
6ac6242b | 558 | // Find the annalog data associated with the channel |
bb2cdfff JH |
559 | shared_ptr<view::AnalogSignal> sig = |
560 | dynamic_pointer_cast<view::AnalogSignal>( | |
6ac6242b | 561 | signal_from_channel(channel)); |
bb2cdfff JH |
562 | assert(sig); |
563 | ||
564 | shared_ptr<data::Analog> data(sig->analog_data()); | |
565 | assert(data); | |
566 | ||
567 | // Push the snapshot into the analog data. | |
568 | data->push_snapshot(snapshot); | |
569 | } | |
570 | ||
571 | assert(snapshot); | |
572 | ||
573 | // Append the samples in the snapshot | |
574 | snapshot->append_interleaved_samples(data++, sample_count, | |
6ac6242b | 575 | channel_count); |
aba1dd16 | 576 | } |
bb2cdfff JH |
577 | |
578 | if (sweep_beginning) { | |
579 | // This could be the first packet after a trigger | |
580 | set_capture_state(Running); | |
aba1dd16 JH |
581 | } |
582 | ||
1f374035 | 583 | data_received(); |
aba1dd16 | 584 | } |
9c112671 | 585 | |
e8d00928 | 586 | void SigSession::data_feed_in(shared_ptr<Device> device, shared_ptr<Packet> packet) |
b0e1d01d | 587 | { |
e8d00928 | 588 | assert(device); |
b0e1d01d JH |
589 | assert(packet); |
590 | ||
e8d00928 | 591 | switch (packet->type()->id()) { |
b0e1d01d | 592 | case SR_DF_HEADER: |
e8d00928 | 593 | feed_in_header(device); |
b0e1d01d JH |
594 | break; |
595 | ||
be73bdfa | 596 | case SR_DF_META: |
e8d00928 | 597 | feed_in_meta(device, dynamic_pointer_cast<Meta>(packet->payload())); |
aba1dd16 JH |
598 | break; |
599 | ||
82f50b10 JH |
600 | case SR_DF_FRAME_BEGIN: |
601 | feed_in_frame_begin(); | |
602 | break; | |
603 | ||
2e2946fe | 604 | case SR_DF_LOGIC: |
e8d00928 | 605 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); |
2953961c JH |
606 | break; |
607 | ||
aba1dd16 | 608 | case SR_DF_ANALOG: |
e8d00928 | 609 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); |
aba1dd16 JH |
610 | break; |
611 | ||
2953961c | 612 | case SR_DF_END: |
2e2946fe JH |
613 | { |
614 | { | |
615 | lock_guard<mutex> lock(_data_mutex); | |
616 | _cur_logic_snapshot.reset(); | |
bb2cdfff | 617 | _cur_analog_snapshots.clear(); |
2e2946fe | 618 | } |
1f374035 | 619 | frame_ended(); |
2953961c JH |
620 | break; |
621 | } | |
adb0a983 ML |
622 | default: |
623 | break; | |
2e2946fe | 624 | } |
2953961c JH |
625 | } |
626 | ||
51e77110 | 627 | } // namespace pv |