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