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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" |
921b90c0 | 28 | #include "device/device.h" |
ae2d1bc5 | 29 | #include "device/file.h" |
119aff65 | 30 | |
1b1ec774 JH |
31 | #include "data/analog.h" |
32 | #include "data/analogsnapshot.h" | |
6e89374a | 33 | #include "data/decoderstack.h" |
1b1ec774 JH |
34 | #include "data/logic.h" |
35 | #include "data/logicsnapshot.h" | |
7491a29f | 36 | #include "data/decode/decoder.h" |
82c7f640 | 37 | |
aba1dd16 | 38 | #include "view/analogsignal.h" |
b9329558 | 39 | #include "view/decodetrace.h" |
8d634081 | 40 | #include "view/logicsignal.h" |
28a4c9c5 | 41 | |
3b68d03d JH |
42 | #include <cassert> |
43 | #include <mutex> | |
e92cd4e4 JH |
44 | #include <stdexcept> |
45 | ||
728e5ef7 JH |
46 | #include <sys/stat.h> |
47 | ||
79efbc53 JH |
48 | #include <QDebug> |
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 | |
51e77110 JH |
61 | namespace pv { |
62 | ||
2953961c | 63 | // TODO: This should not be necessary |
04abfae9 | 64 | SigSession* SigSession::_session = NULL; |
2953961c | 65 | |
bb3030b3 ML |
66 | // TODO: This should not be necessary |
67 | struct sr_session *SigSession::_sr_session = NULL; | |
68 | ||
dc0867ff JH |
69 | SigSession::SigSession(DeviceManager &device_manager) : |
70 | _device_manager(device_manager), | |
5b7cf66c | 71 | _capture_state(Stopped) |
2953961c JH |
72 | { |
73 | // TODO: This should not be necessary | |
04abfae9 | 74 | _session = this; |
d873f4d6 JH |
75 | |
76 | set_default_device(); | |
2953961c JH |
77 | } |
78 | ||
79 | SigSession::~SigSession() | |
80 | { | |
85843b14 JH |
81 | using pv::device::Device; |
82 | ||
04463625 | 83 | // Stop and join to the thread |
5b7cf66c JH |
84 | stop_capture(); |
85 | ||
996b7c9d | 86 | _dev_inst->release(); |
0f784939 | 87 | |
2953961c | 88 | // TODO: This should not be necessary |
04abfae9 | 89 | _session = NULL; |
2953961c JH |
90 | } |
91 | ||
94574501 | 92 | shared_ptr<device::DevInst> SigSession::get_device() const |
dc0867ff | 93 | { |
19adbc2c | 94 | return _dev_inst; |
dc0867ff JH |
95 | } |
96 | ||
ae2d1bc5 JH |
97 | void SigSession::set_device( |
98 | shared_ptr<device::DevInst> dev_inst) throw(QString) | |
d64d1596 | 99 | { |
85843b14 JH |
100 | using pv::device::Device; |
101 | ||
82596f46 JH |
102 | // Ensure we are not capturing before setting the device |
103 | stop_capture(); | |
104 | ||
ae2d1bc5 | 105 | if (_dev_inst) { |
bb3030b3 | 106 | sr_session_datafeed_callback_remove_all(_sr_session); |
996b7c9d | 107 | _dev_inst->release(); |
ae2d1bc5 JH |
108 | } |
109 | ||
110 | _dev_inst = dev_inst; | |
111 | _decode_traces.clear(); | |
85843b14 | 112 | |
ae2d1bc5 | 113 | if (dev_inst) { |
996b7c9d | 114 | dev_inst->use(this); |
bb3030b3 | 115 | sr_session_datafeed_callback_add(_sr_session, data_feed_in_proc, NULL); |
ae2d1bc5 JH |
116 | update_signals(dev_inst); |
117 | } | |
118 | } | |
85843b14 | 119 | |
ae2d1bc5 JH |
120 | void SigSession::set_file(const string &name) throw(QString) |
121 | { | |
5ab6596d JS |
122 | // Deselect the old device, because file type detection in File::create |
123 | // destroys the old session inside libsigrok. | |
ae2d1bc5 JH |
124 | set_device(shared_ptr<device::DevInst>()); |
125 | set_device(shared_ptr<device::DevInst>(device::File::create(name))); | |
d64d1596 JH |
126 | } |
127 | ||
6fd0b639 JH |
128 | void SigSession::set_default_device() |
129 | { | |
130 | shared_ptr<pv::device::DevInst> default_device; | |
131 | const list< shared_ptr<device::Device> > &devices = | |
132 | _device_manager.devices(); | |
133 | ||
134 | if (!devices.empty()) { | |
135 | // Fall back to the first device in the list. | |
136 | default_device = devices.front(); | |
137 | ||
138 | // Try and find the demo device and select that by default | |
d9aecf1f | 139 | for (shared_ptr<pv::device::Device> dev : devices) |
6fd0b639 JH |
140 | if (strcmp(dev->dev_inst()->driver->name, |
141 | "demo") == 0) { | |
142 | default_device = dev; | |
143 | break; | |
144 | } | |
145 | } | |
146 | ||
147 | set_device(default_device); | |
148 | } | |
149 | ||
996b7c9d | 150 | void SigSession::release_device(device::DevInst *dev_inst) |
dc0867ff | 151 | { |
19adbc2c | 152 | (void)dev_inst; |
996b7c9d | 153 | assert(_dev_inst.get() == dev_inst); |
dc0867ff JH |
154 | |
155 | assert(_capture_state == Stopped); | |
94574501 | 156 | _dev_inst = shared_ptr<device::DevInst>(); |
dc0867ff JH |
157 | } |
158 | ||
5b7cf66c JH |
159 | SigSession::capture_state SigSession::get_capture_state() const |
160 | { | |
949f8050 | 161 | lock_guard<mutex> lock(_sampling_mutex); |
5b7cf66c JH |
162 | return _capture_state; |
163 | } | |
164 | ||
d99dc9f2 | 165 | void SigSession::start_capture(function<void (const QString)> error_handler) |
2e2946fe | 166 | { |
5b7cf66c JH |
167 | stop_capture(); |
168 | ||
d64d1596 | 169 | // Check that a device instance has been selected. |
19adbc2c | 170 | if (!_dev_inst) { |
d64d1596 JH |
171 | qDebug() << "No device selected"; |
172 | return; | |
173 | } | |
174 | ||
19adbc2c JH |
175 | assert(_dev_inst->dev_inst()); |
176 | ||
9c48fa57 JH |
177 | // Check that at least one probe is enabled |
178 | const GSList *l; | |
4871ed92 UH |
179 | for (l = _dev_inst->dev_inst()->channels; l; l = l->next) { |
180 | sr_channel *const probe = (sr_channel*)l->data; | |
9c48fa57 JH |
181 | assert(probe); |
182 | if (probe->enabled) | |
183 | break; | |
184 | } | |
185 | ||
186 | if (!l) { | |
4871ed92 | 187 | error_handler(tr("No channels enabled.")); |
9c48fa57 JH |
188 | return; |
189 | } | |
190 | ||
191 | // Begin the session | |
3b68d03d | 192 | _sampling_thread = std::thread( |
19adbc2c JH |
193 | &SigSession::sample_thread_proc, this, _dev_inst, |
194 | error_handler); | |
2e2946fe JH |
195 | } |
196 | ||
5b7cf66c JH |
197 | void SigSession::stop_capture() |
198 | { | |
04463625 | 199 | if (get_capture_state() != Stopped) |
bb3030b3 | 200 | sr_session_stop(_sr_session); |
5b7cf66c JH |
201 | |
202 | // Check that sampling stopped | |
6d483b8b MC |
203 | if (_sampling_thread.joinable()) |
204 | _sampling_thread.join(); | |
5b7cf66c JH |
205 | } |
206 | ||
02412f0b JH |
207 | set< shared_ptr<data::SignalData> > SigSession::get_data() const |
208 | { | |
209 | lock_guard<mutex> lock(_signals_mutex); | |
210 | set< shared_ptr<data::SignalData> > data; | |
d9aecf1f | 211 | for (const shared_ptr<view::Signal> sig : _signals) { |
02412f0b JH |
212 | assert(sig); |
213 | data.insert(sig->data()); | |
214 | } | |
215 | ||
216 | return data; | |
217 | } | |
218 | ||
38eeddea | 219 | vector< shared_ptr<view::Signal> > SigSession::get_signals() const |
2e2946fe | 220 | { |
3868e5fa | 221 | lock_guard<mutex> lock(_signals_mutex); |
2e2946fe JH |
222 | return _signals; |
223 | } | |
224 | ||
269528f5 | 225 | #ifdef ENABLE_DECODE |
4e5a4405 | 226 | bool SigSession::add_decoder(srd_decoder *const dec) |
82c7f640 | 227 | { |
8bd26d8b | 228 | map<const srd_channel*, shared_ptr<view::LogicSignal> > probes; |
7491a29f | 229 | shared_ptr<data::DecoderStack> decoder_stack; |
4e5a4405 | 230 | |
e92cd4e4 | 231 | try |
82c7f640 | 232 | { |
119aff65 | 233 | lock_guard<mutex> lock(_signals_mutex); |
e0fc5810 | 234 | |
4e5a4405 | 235 | // Create the decoder |
7491a29f | 236 | decoder_stack = shared_ptr<data::DecoderStack>( |
bdc5c3b0 | 237 | new data::DecoderStack(*this, dec)); |
4e5a4405 | 238 | |
d2f46d27 | 239 | // Make a list of all the probes |
8bd26d8b UH |
240 | std::vector<const srd_channel*> all_probes; |
241 | for(const GSList *i = dec->channels; i; i = i->next) | |
242 | all_probes.push_back((const srd_channel*)i->data); | |
243 | for(const GSList *i = dec->opt_channels; i; i = i->next) | |
244 | all_probes.push_back((const srd_channel*)i->data); | |
d2f46d27 JH |
245 | |
246 | // Auto select the initial probes | |
d9aecf1f JH |
247 | for (const srd_channel *pdch : all_probes) |
248 | for (shared_ptr<view::Signal> s : _signals) | |
4e5a4405 JH |
249 | { |
250 | shared_ptr<view::LogicSignal> l = | |
251 | dynamic_pointer_cast<view::LogicSignal>(s); | |
8bd26d8b | 252 | if (l && QString::fromUtf8(pdch->name). |
27e8df22 | 253 | toLower().contains( |
4e5a4405 | 254 | l->get_name().toLower())) |
8bd26d8b | 255 | probes[pdch] = l; |
4e5a4405 | 256 | } |
4e5a4405 | 257 | |
7491a29f JH |
258 | assert(decoder_stack); |
259 | assert(!decoder_stack->stack().empty()); | |
260 | assert(decoder_stack->stack().front()); | |
261 | decoder_stack->stack().front()->set_probes(probes); | |
4e5a4405 JH |
262 | |
263 | // Create the decode signal | |
b9329558 | 264 | shared_ptr<view::DecodeTrace> d( |
7491a29f | 265 | new view::DecodeTrace(*this, decoder_stack, |
06bb4e6a | 266 | _decode_traces.size())); |
82c7f640 JH |
267 | _decode_traces.push_back(d); |
268 | } | |
e92cd4e4 JH |
269 | catch(std::runtime_error e) |
270 | { | |
271 | return false; | |
272 | } | |
273 | ||
82c7f640 | 274 | signals_changed(); |
e92cd4e4 | 275 | |
7491a29f JH |
276 | // Do an initial decode |
277 | decoder_stack->begin_decode(); | |
278 | ||
e92cd4e4 | 279 | return true; |
82c7f640 JH |
280 | } |
281 | ||
b9329558 | 282 | vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const |
38eeddea JH |
283 | { |
284 | lock_guard<mutex> lock(_signals_mutex); | |
285 | return _decode_traces; | |
286 | } | |
287 | ||
b9329558 | 288 | void SigSession::remove_decode_signal(view::DecodeTrace *signal) |
c51482b3 | 289 | { |
f46e495e | 290 | for (auto i = _decode_traces.begin(); i != _decode_traces.end(); i++) |
c51482b3 JH |
291 | if ((*i).get() == signal) |
292 | { | |
293 | _decode_traces.erase(i); | |
294 | signals_changed(); | |
295 | return; | |
296 | } | |
297 | } | |
269528f5 | 298 | #endif |
c51482b3 | 299 | |
6ac96c2e JH |
300 | void SigSession::set_capture_state(capture_state state) |
301 | { | |
949f8050 | 302 | lock_guard<mutex> lock(_sampling_mutex); |
2b49eeb0 | 303 | const bool changed = _capture_state != state; |
6ac96c2e | 304 | _capture_state = state; |
2b49eeb0 JH |
305 | if(changed) |
306 | capture_state_changed(state); | |
6ac96c2e JH |
307 | } |
308 | ||
94574501 | 309 | void SigSession::update_signals(shared_ptr<device::DevInst> dev_inst) |
b087ba7f | 310 | { |
19adbc2c | 311 | assert(dev_inst); |
b087ba7f JH |
312 | assert(_capture_state == Stopped); |
313 | ||
b087ba7f | 314 | unsigned int logic_probe_count = 0; |
b087ba7f | 315 | |
82c7f640 JH |
316 | // Clear the decode traces |
317 | _decode_traces.clear(); | |
318 | ||
b087ba7f | 319 | // Detect what data types we will receive |
19adbc2c JH |
320 | if(dev_inst) { |
321 | assert(dev_inst->dev_inst()); | |
4871ed92 | 322 | for (const GSList *l = dev_inst->dev_inst()->channels; |
19adbc2c | 323 | l; l = l->next) { |
4871ed92 | 324 | const sr_channel *const probe = (const sr_channel *)l->data; |
b087ba7f JH |
325 | if (!probe->enabled) |
326 | continue; | |
327 | ||
328 | switch(probe->type) { | |
4871ed92 | 329 | case SR_CHANNEL_LOGIC: |
b087ba7f JH |
330 | logic_probe_count++; |
331 | break; | |
b087ba7f JH |
332 | } |
333 | } | |
334 | } | |
335 | ||
bb2cdfff | 336 | // Create data containers for the logic data snapshots |
b087ba7f JH |
337 | { |
338 | lock_guard<mutex> data_lock(_data_mutex); | |
339 | ||
340 | _logic_data.reset(); | |
341 | if (logic_probe_count != 0) { | |
342 | _logic_data.reset(new data::Logic( | |
343 | logic_probe_count)); | |
344 | assert(_logic_data); | |
345 | } | |
b087ba7f JH |
346 | } |
347 | ||
348 | // Make the Signals list | |
39e680c2 | 349 | do { |
b087ba7f JH |
350 | lock_guard<mutex> lock(_signals_mutex); |
351 | ||
352 | _signals.clear(); | |
353 | ||
19adbc2c | 354 | if(!dev_inst) |
39e680c2 JH |
355 | break; |
356 | ||
19adbc2c | 357 | assert(dev_inst->dev_inst()); |
4871ed92 | 358 | for (const GSList *l = dev_inst->dev_inst()->channels; |
19adbc2c | 359 | l; l = l->next) { |
39e680c2 | 360 | shared_ptr<view::Signal> signal; |
4871ed92 | 361 | sr_channel *const probe = (sr_channel *)l->data; |
39e680c2 JH |
362 | assert(probe); |
363 | ||
364 | switch(probe->type) { | |
4871ed92 | 365 | case SR_CHANNEL_LOGIC: |
39e680c2 | 366 | signal = shared_ptr<view::Signal>( |
83c23cc9 | 367 | new view::LogicSignal(dev_inst, |
8d3e0764 | 368 | probe, _logic_data)); |
39e680c2 JH |
369 | break; |
370 | ||
4871ed92 | 371 | case SR_CHANNEL_ANALOG: |
bb2cdfff JH |
372 | { |
373 | shared_ptr<data::Analog> data( | |
374 | new data::Analog()); | |
39e680c2 | 375 | signal = shared_ptr<view::Signal>( |
83c23cc9 | 376 | new view::AnalogSignal(dev_inst, |
8d3e0764 | 377 | probe, data)); |
39e680c2 | 378 | break; |
bb2cdfff | 379 | } |
39e680c2 JH |
380 | |
381 | default: | |
382 | assert(0); | |
383 | break; | |
b087ba7f | 384 | } |
39e680c2 JH |
385 | |
386 | assert(signal); | |
387 | _signals.push_back(signal); | |
b087ba7f | 388 | } |
39e680c2 JH |
389 | |
390 | } while(0); | |
b087ba7f JH |
391 | |
392 | signals_changed(); | |
393 | } | |
394 | ||
3ddcc083 | 395 | shared_ptr<view::Signal> SigSession::signal_from_probe( |
4871ed92 | 396 | const sr_channel *probe) const |
3ddcc083 JH |
397 | { |
398 | lock_guard<mutex> lock(_signals_mutex); | |
d9aecf1f | 399 | for (shared_ptr<view::Signal> sig : _signals) { |
3ddcc083 JH |
400 | assert(sig); |
401 | if (sig->probe() == probe) | |
402 | return sig; | |
403 | } | |
404 | return shared_ptr<view::Signal>(); | |
405 | } | |
406 | ||
deef291c JH |
407 | void SigSession::read_sample_rate(const sr_dev_inst *const sdi) |
408 | { | |
409 | GVariant *gvar; | |
410 | uint64_t sample_rate = 0; | |
411 | ||
412 | // Read out the sample rate | |
413 | if(sdi->driver) | |
414 | { | |
68162c29 BV |
415 | const int ret = sr_config_get(sdi->driver, sdi, NULL, |
416 | SR_CONF_SAMPLERATE, &gvar); | |
deef291c JH |
417 | if (ret != SR_OK) { |
418 | qDebug("Failed to get samplerate\n"); | |
419 | return; | |
420 | } | |
421 | ||
422 | sample_rate = g_variant_get_uint64(gvar); | |
423 | g_variant_unref(gvar); | |
424 | } | |
425 | ||
bb2cdfff JH |
426 | // Set the sample rate of all data |
427 | const set< shared_ptr<data::SignalData> > data_set = get_data(); | |
d9aecf1f | 428 | for (shared_ptr<data::SignalData> data : data_set) { |
bb2cdfff JH |
429 | assert(data); |
430 | data->set_samplerate(sample_rate); | |
431 | } | |
deef291c JH |
432 | } |
433 | ||
94574501 | 434 | void SigSession::sample_thread_proc(shared_ptr<device::DevInst> dev_inst, |
f2edb557 | 435 | function<void (const QString)> error_handler) |
274d4f13 | 436 | { |
19adbc2c JH |
437 | assert(dev_inst); |
438 | assert(dev_inst->dev_inst()); | |
f2edb557 | 439 | assert(error_handler); |
be73bdfa | 440 | |
ae2d1bc5 | 441 | read_sample_rate(dev_inst->dev_inst()); |
274d4f13 | 442 | |
ae2d1bc5 JH |
443 | try { |
444 | dev_inst->start(); | |
445 | } catch(const QString e) { | |
446 | error_handler(e); | |
eec446e1 JH |
447 | return; |
448 | } | |
449 | ||
bb3030b3 | 450 | set_capture_state(sr_session_trigger_get(_sr_session) ? |
07dcf561 | 451 | AwaitingTrigger : Running); |
eec446e1 | 452 | |
ae2d1bc5 | 453 | dev_inst->run(); |
eec446e1 | 454 | set_capture_state(Stopped); |
1a2fe44c JH |
455 | |
456 | // Confirm that SR_DF_END was received | |
bb2cdfff JH |
457 | if (_cur_logic_snapshot) |
458 | { | |
459 | qDebug("SR_DF_END was not received."); | |
460 | assert(0); | |
461 | } | |
eec446e1 JH |
462 | } |
463 | ||
464 | void SigSession::feed_in_header(const sr_dev_inst *sdi) | |
465 | { | |
deef291c | 466 | read_sample_rate(sdi); |
be73bdfa JH |
467 | } |
468 | ||
469 | void SigSession::feed_in_meta(const sr_dev_inst *sdi, | |
470 | const sr_datafeed_meta &meta) | |
471 | { | |
94fe58ef UH |
472 | (void)sdi; |
473 | ||
be73bdfa JH |
474 | for (const GSList *l = meta.config; l; l = l->next) { |
475 | const sr_config *const src = (const sr_config*)l->data; | |
476 | switch (src->key) { | |
477 | case SR_CONF_SAMPLERATE: | |
478 | /// @todo handle samplerate changes | |
479 | /// samplerate = (uint64_t *)src->value; | |
480 | break; | |
481 | default: | |
482 | // Unknown metadata is not an error. | |
483 | break; | |
484 | } | |
aba1dd16 | 485 | } |
74043039 JH |
486 | |
487 | signals_changed(); | |
aba1dd16 JH |
488 | } |
489 | ||
82f50b10 JH |
490 | void SigSession::feed_in_frame_begin() |
491 | { | |
492 | if (_cur_logic_snapshot || !_cur_analog_snapshots.empty()) | |
493 | frame_began(); | |
494 | } | |
495 | ||
9c112671 JH |
496 | void SigSession::feed_in_logic(const sr_datafeed_logic &logic) |
497 | { | |
498 | lock_guard<mutex> lock(_data_mutex); | |
79efbc53 JH |
499 | |
500 | if (!_logic_data) | |
9c112671 | 501 | { |
79efbc53 JH |
502 | qDebug() << "Unexpected logic packet"; |
503 | return; | |
504 | } | |
be73bdfa | 505 | |
79efbc53 JH |
506 | if (!_cur_logic_snapshot) |
507 | { | |
bb2cdfff | 508 | // This could be the first packet after a trigger |
2b49eeb0 JH |
509 | set_capture_state(Running); |
510 | ||
9c112671 | 511 | // Create a new data snapshot |
1b1ec774 | 512 | _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>( |
27d7c96b | 513 | new data::LogicSnapshot(logic, _dev_inst->get_sample_limit())); |
9c112671 | 514 | _logic_data->push_snapshot(_cur_logic_snapshot); |
82f50b10 JH |
515 | |
516 | // @todo Putting this here means that only listeners querying | |
517 | // for logic will be notified. Currently the only user of | |
518 | // frame_began is DecoderStack, but in future we need to signal | |
519 | // this after both analog and logic sweeps have begun. | |
520 | frame_began(); | |
9c112671 JH |
521 | } |
522 | else | |
523 | { | |
524 | // Append to the existing data snapshot | |
525 | _cur_logic_snapshot->append_payload(logic); | |
526 | } | |
527 | ||
1f374035 | 528 | data_received(); |
9c112671 JH |
529 | } |
530 | ||
aba1dd16 JH |
531 | void SigSession::feed_in_analog(const sr_datafeed_analog &analog) |
532 | { | |
533 | lock_guard<mutex> lock(_data_mutex); | |
79efbc53 | 534 | |
4871ed92 | 535 | const unsigned int probe_count = g_slist_length(analog.channels); |
bb2cdfff JH |
536 | const size_t sample_count = analog.num_samples / probe_count; |
537 | const float *data = analog.data; | |
538 | bool sweep_beginning = false; | |
be73bdfa | 539 | |
4871ed92 | 540 | for (GSList *p = analog.channels; p; p = p->next) |
79efbc53 | 541 | { |
bb2cdfff | 542 | shared_ptr<data::AnalogSnapshot> snapshot; |
2b49eeb0 | 543 | |
4871ed92 | 544 | sr_channel *const probe = (sr_channel*)p->data; |
bb2cdfff JH |
545 | assert(probe); |
546 | ||
547 | // Try to get the snapshot of the probe | |
4871ed92 | 548 | const map< const sr_channel*, shared_ptr<data::AnalogSnapshot> >:: |
bb2cdfff JH |
549 | iterator iter = _cur_analog_snapshots.find(probe); |
550 | if (iter != _cur_analog_snapshots.end()) | |
551 | snapshot = (*iter).second; | |
552 | else | |
553 | { | |
554 | // If no snapshot was found, this means we havn't | |
555 | // created one yet. i.e. this is the first packet | |
556 | // in the sweep containing this snapshot. | |
557 | sweep_beginning = true; | |
558 | ||
559 | // Create a snapshot, keep it in the maps of probes | |
560 | snapshot = shared_ptr<data::AnalogSnapshot>( | |
27d7c96b | 561 | new data::AnalogSnapshot(_dev_inst->get_sample_limit())); |
bb2cdfff JH |
562 | _cur_analog_snapshots[probe] = snapshot; |
563 | ||
564 | // Find the annalog data associated with the probe | |
565 | shared_ptr<view::AnalogSignal> sig = | |
566 | dynamic_pointer_cast<view::AnalogSignal>( | |
567 | signal_from_probe(probe)); | |
568 | assert(sig); | |
569 | ||
570 | shared_ptr<data::Analog> data(sig->analog_data()); | |
571 | assert(data); | |
572 | ||
573 | // Push the snapshot into the analog data. | |
574 | data->push_snapshot(snapshot); | |
575 | } | |
576 | ||
577 | assert(snapshot); | |
578 | ||
579 | // Append the samples in the snapshot | |
580 | snapshot->append_interleaved_samples(data++, sample_count, | |
581 | probe_count); | |
aba1dd16 | 582 | } |
bb2cdfff JH |
583 | |
584 | if (sweep_beginning) { | |
585 | // This could be the first packet after a trigger | |
586 | set_capture_state(Running); | |
aba1dd16 JH |
587 | } |
588 | ||
1f374035 | 589 | data_received(); |
aba1dd16 | 590 | } |
9c112671 | 591 | |
b0e1d01d JH |
592 | void SigSession::data_feed_in(const struct sr_dev_inst *sdi, |
593 | const struct sr_datafeed_packet *packet) | |
594 | { | |
595 | assert(sdi); | |
596 | assert(packet); | |
597 | ||
598 | switch (packet->type) { | |
599 | case SR_DF_HEADER: | |
eec446e1 | 600 | feed_in_header(sdi); |
b0e1d01d JH |
601 | break; |
602 | ||
be73bdfa | 603 | case SR_DF_META: |
aba1dd16 | 604 | assert(packet->payload); |
be73bdfa JH |
605 | feed_in_meta(sdi, |
606 | *(const sr_datafeed_meta*)packet->payload); | |
aba1dd16 JH |
607 | break; |
608 | ||
82f50b10 JH |
609 | case SR_DF_FRAME_BEGIN: |
610 | feed_in_frame_begin(); | |
611 | break; | |
612 | ||
2e2946fe | 613 | case SR_DF_LOGIC: |
28a4c9c5 | 614 | assert(packet->payload); |
9c112671 | 615 | feed_in_logic(*(const sr_datafeed_logic*)packet->payload); |
2953961c JH |
616 | break; |
617 | ||
aba1dd16 JH |
618 | case SR_DF_ANALOG: |
619 | assert(packet->payload); | |
620 | feed_in_analog(*(const sr_datafeed_analog*)packet->payload); | |
621 | break; | |
622 | ||
2953961c | 623 | case SR_DF_END: |
2e2946fe JH |
624 | { |
625 | { | |
626 | lock_guard<mutex> lock(_data_mutex); | |
627 | _cur_logic_snapshot.reset(); | |
bb2cdfff | 628 | _cur_analog_snapshots.clear(); |
2e2946fe | 629 | } |
1f374035 | 630 | frame_ended(); |
2953961c JH |
631 | break; |
632 | } | |
2e2946fe | 633 | } |
2953961c JH |
634 | } |
635 | ||
04abfae9 | 636 | void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi, |
5045f16d | 637 | const struct sr_datafeed_packet *packet, void *cb_data) |
2953961c | 638 | { |
5045f16d | 639 | (void) cb_data; |
04abfae9 JH |
640 | assert(_session); |
641 | _session->data_feed_in(sdi, packet); | |
2953961c | 642 | } |
51e77110 JH |
643 | |
644 | } // namespace pv |