2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
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
21 #include "sigsession.h"
23 #include "data/analog.h"
24 #include "data/analogsnapshot.h"
25 #include "data/logic.h"
26 #include "data/logicsnapshot.h"
27 #include "view/analogsignal.h"
28 #include "view/logicsignal.h"
34 using namespace boost;
39 // TODO: This should not be necessary
40 SigSession* SigSession::_session = NULL;
42 SigSession::SigSession() :
43 _capture_state(Stopped)
45 // TODO: This should not be necessary
49 SigSession::~SigSession()
53 if (_sampling_thread.get())
54 _sampling_thread->join();
55 _sampling_thread.reset();
57 // TODO: This should not be necessary
61 void SigSession::load_file(const string &name)
64 _sampling_thread.reset(new boost::thread(
65 &SigSession::load_thread_proc, this, name));
68 SigSession::capture_state SigSession::get_capture_state() const
70 lock_guard<mutex> lock(_sampling_mutex);
71 return _capture_state;
74 void SigSession::start_capture(struct sr_dev_inst *sdi,
75 uint64_t record_length, uint64_t sample_rate)
79 lock_guard<mutex> lock(_sampling_mutex);
80 _sample_rate = sample_rate;
82 _sampling_thread.reset(new boost::thread(
83 &SigSession::sample_thread_proc, this, sdi,
87 void SigSession::stop_capture()
89 if (get_capture_state() == Stopped)
94 // Check that sampling stopped
95 if (_sampling_thread.get())
96 _sampling_thread->join();
97 _sampling_thread.reset();
100 vector< shared_ptr<view::Signal> > SigSession::get_signals()
102 lock_guard<mutex> lock(_signals_mutex);
106 boost::shared_ptr<data::Logic> SigSession::get_data()
111 void SigSession::set_capture_state(capture_state state)
113 lock_guard<mutex> lock(_sampling_mutex);
114 _capture_state = state;
115 capture_state_changed(state);
118 void SigSession::load_thread_proc(const string name)
120 if (sr_session_load(name.c_str()) != SR_OK) {
121 qDebug() << "Failed to load file.";
125 sr_session_datafeed_callback_add(data_feed_in_proc);
127 if (sr_session_start() != SR_OK) {
128 qDebug() << "Failed to start session.";
132 set_capture_state(Running);
137 set_capture_state(Stopped);
140 void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
141 uint64_t record_length)
143 shared_ptr<view::Signal> signal;
144 unsigned int logic_probe_count = 0;
145 unsigned int analog_probe_count = 0;
150 sr_session_datafeed_callback_add(data_feed_in_proc);
152 if (sr_session_dev_add(sdi) != SR_OK) {
153 qDebug() << "Failed to use device.";
154 sr_session_destroy();
158 // Set the sample limit
159 if (sr_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
160 &record_length) != SR_OK) {
161 qDebug() << "Failed to configure time-based sample limit.";
162 sr_session_destroy();
166 // Set the samplerate
168 lock_guard<mutex> lock(_sampling_mutex);
169 if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
170 &_sample_rate) != SR_OK) {
171 qDebug() << "Failed to configure samplerate.";
172 sr_session_destroy();
177 // Detect what data types we will receive
178 for (const GSList *l = sdi->probes; l; l = l->next) {
179 const sr_probe *const probe = (const sr_probe *)l->data;
183 switch(probe->type) {
188 case SR_PROBE_ANALOG:
189 analog_probe_count++;
194 // Create data containers for the coming data snapshots
196 lock_guard<mutex> data_lock(_data_mutex);
197 lock_guard<mutex> sampling_lock(_sampling_mutex);
199 if (logic_probe_count != 0) {
200 _logic_data.reset(new data::Logic(
201 logic_probe_count, _sample_rate));
205 if (analog_probe_count != 0) {
206 _analog_data.reset(new data::Analog(_sample_rate));
207 assert(_analog_data);
211 // Make the logic probe list
213 lock_guard<mutex> lock(_signals_mutex);
217 for (const GSList *l = sdi->probes; l; l = l->next) {
218 const sr_probe *const probe =
219 (const sr_probe *)l->data;
224 switch(probe->type) {
226 signal = shared_ptr<view::Signal>(
227 new view::LogicSignal(probe->name,
228 _logic_data, probe->index));
231 case SR_PROBE_ANALOG:
232 signal = shared_ptr<view::Signal>(
233 new view::AnalogSignal(probe->name,
238 _signals.push_back(signal);
244 if (sr_session_start() != SR_OK) {
245 qDebug() << "Failed to start session.";
249 set_capture_state(Running);
252 sr_session_destroy();
254 set_capture_state(Stopped);
257 void SigSession::feed_in_meta(const sr_dev_inst *sdi,
258 const sr_datafeed_meta &meta)
260 for (const GSList *l = meta.config; l; l = l->next) {
261 const sr_config *const src = (const sr_config*)l->data;
263 case SR_CONF_SAMPLERATE:
264 /// @todo handle samplerate changes
265 /// samplerate = (uint64_t *)src->value;
268 // Unknown metadata is not an error.
274 void SigSession::feed_in_logic(const sr_datafeed_logic &logic)
276 lock_guard<mutex> lock(_data_mutex);
277 if (!_cur_logic_snapshot)
281 // Create a new data snapshot
282 _cur_logic_snapshot = shared_ptr<data::LogicSnapshot>(
283 new data::LogicSnapshot(logic));
284 _logic_data->push_snapshot(_cur_logic_snapshot);
288 // Append to the existing data snapshot
289 _cur_logic_snapshot->append_payload(logic);
295 void SigSession::feed_in_analog(const sr_datafeed_analog &analog)
297 lock_guard<mutex> lock(_data_mutex);
298 if (!_cur_analog_snapshot)
300 assert(_analog_data);
302 // Create a new data snapshot
303 _cur_analog_snapshot = shared_ptr<data::AnalogSnapshot>(
304 new data::AnalogSnapshot(analog));
305 _analog_data->push_snapshot(_cur_analog_snapshot);
309 // Append to the existing data snapshot
310 _cur_analog_snapshot->append_payload(analog);
316 void SigSession::data_feed_in(const struct sr_dev_inst *sdi,
317 const struct sr_datafeed_packet *packet)
322 switch (packet->type) {
327 assert(packet->payload);
329 *(const sr_datafeed_meta*)packet->payload);
333 assert(packet->payload);
334 feed_in_logic(*(const sr_datafeed_logic*)packet->payload);
338 assert(packet->payload);
339 feed_in_analog(*(const sr_datafeed_analog*)packet->payload);
345 lock_guard<mutex> lock(_data_mutex);
346 _cur_logic_snapshot.reset();
347 _cur_analog_snapshot.reset();
355 void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi,
356 const struct sr_datafeed_packet *packet)
359 _session->data_feed_in(sdi, packet);