/*
* This file is part of the PulseView project.
*
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ * Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifdef ENABLE_DECODE
+#include <libsigrokdecode/libsigrokdecode.h>
+#endif
+
#include "sigsession.h"
#include "devicemanager.h"
+#include "device/device.h"
+#include "device/file.h"
+
#include "data/analog.h"
#include "data/analogsnapshot.h"
+#include "data/decoderstack.h"
#include "data/logic.h"
#include "data/logicsnapshot.h"
+#include "data/decode/decoder.h"
+
#include "view/analogsignal.h"
+#include "view/decodetrace.h"
#include "view/logicsignal.h"
-#include <assert.h>
+#include <cassert>
+#include <mutex>
+#include <stdexcept>
+
+#include <sys/stat.h>
#include <QDebug>
-using namespace boost;
-using namespace std;
+using std::dynamic_pointer_cast;
+using std::function;
+using std::lock_guard;
+using std::mutex;
+using std::list;
+using std::map;
+using std::set;
+using std::shared_ptr;
+using std::string;
+using std::vector;
namespace pv {
// TODO: This should not be necessary
SigSession* SigSession::_session = NULL;
+// TODO: This should not be necessary
+struct sr_session *SigSession::_sr_session = NULL;
+
SigSession::SigSession(DeviceManager &device_manager) :
_device_manager(device_manager),
- _sdi(NULL),
_capture_state(Stopped)
{
// TODO: This should not be necessary
_session = this;
+
+ set_default_device();
}
SigSession::~SigSession()
{
+ using pv::device::Device;
+
+ // Stop and join to the thread
stop_capture();
- if (_sampling_thread.get())
- _sampling_thread->join();
- _sampling_thread.reset();
+ if (_dev_inst)
+ _dev_inst->release();
// TODO: This should not be necessary
_session = NULL;
}
-struct sr_dev_inst* SigSession::get_device() const
+shared_ptr<device::DevInst> SigSession::get_device() const
{
- return _sdi;
+ return _dev_inst;
}
-void SigSession::set_device(struct sr_dev_inst *sdi)
+void SigSession::set_device(
+ shared_ptr<device::DevInst> dev_inst) throw(QString)
{
- if (_sdi)
- _device_manager.release_device(_sdi);
- if (sdi)
- _device_manager.use_device(sdi, this);
- _sdi = sdi;
+ using pv::device::Device;
+
+ if (!dev_inst)
+ return;
+
+ // Ensure we are not capturing before setting the device
+ stop_capture();
+
+ if (_dev_inst) {
+ sr_session_datafeed_callback_remove_all(_sr_session);
+ _dev_inst->release();
+ }
+
+ _dev_inst = dev_inst;
+ _decode_traces.clear();
+
+ if (dev_inst) {
+ dev_inst->use(this);
+ sr_session_datafeed_callback_add(_sr_session, data_feed_in_proc, NULL);
+ update_signals(dev_inst);
+ }
}
-void SigSession::release_device(struct sr_dev_inst *sdi)
+void SigSession::set_file(const string &name) throw(QString)
{
- (void)sdi;
+ // Deselect the old device, because file type detection in File::create
+ // destroys the old session inside libsigrok.
+ set_device(shared_ptr<device::DevInst>());
+ set_device(shared_ptr<device::DevInst>(device::File::create(name)));
+}
- assert(_capture_state == Stopped);
- _sdi = NULL;
+void SigSession::set_default_device()
+{
+ shared_ptr<pv::device::DevInst> default_device;
+ const list< shared_ptr<device::Device> > &devices =
+ _device_manager.devices();
+
+ if (!devices.empty()) {
+ // Fall back to the first device in the list.
+ default_device = devices.front();
+
+ // Try and find the demo device and select that by default
+ for (shared_ptr<pv::device::Device> dev : devices)
+ if (strcmp(dev->dev_inst()->driver->name,
+ "demo") == 0) {
+ default_device = dev;
+ break;
+ }
+ }
+
+ set_device(default_device);
}
-void SigSession::load_file(const string &name,
- function<void (const QString)> error_handler)
+void SigSession::release_device(device::DevInst *dev_inst)
{
- stop_capture();
- _sampling_thread.reset(new boost::thread(
- &SigSession::load_thread_proc, this, name,
- error_handler));
+ (void)dev_inst;
+ assert(_dev_inst.get() == dev_inst);
+
+ assert(_capture_state == Stopped);
+ _dev_inst = shared_ptr<device::DevInst>();
}
SigSession::capture_state SigSession::get_capture_state() const
return _capture_state;
}
-void SigSession::start_capture(uint64_t record_length,
- function<void (const QString)> error_handler)
+void SigSession::start_capture(function<void (const QString)> error_handler)
{
stop_capture();
// Check that a device instance has been selected.
- if (!_sdi) {
+ if (!_dev_inst) {
qDebug() << "No device selected";
return;
}
+ assert(_dev_inst->dev_inst());
+
// Check that at least one probe is enabled
const GSList *l;
- for (l = _sdi->probes; l; l = l->next) {
- sr_probe *const probe = (sr_probe*)l->data;
+ for (l = _dev_inst->dev_inst()->channels; l; l = l->next) {
+ sr_channel *const probe = (sr_channel*)l->data;
assert(probe);
if (probe->enabled)
break;
}
if (!l) {
- error_handler(tr("No probes enabled."));
+ error_handler(tr("No channels enabled."));
return;
}
// Begin the session
- _sampling_thread.reset(new boost::thread(
- &SigSession::sample_thread_proc, this, _sdi,
- record_length, error_handler));
+ _sampling_thread = std::thread(
+ &SigSession::sample_thread_proc, this, _dev_inst,
+ error_handler);
}
void SigSession::stop_capture()
{
- if (get_capture_state() == Stopped)
- return;
-
- sr_session_stop();
+ if (get_capture_state() != Stopped)
+ sr_session_stop(_sr_session);
// Check that sampling stopped
- if (_sampling_thread.get())
- _sampling_thread->join();
- _sampling_thread.reset();
+ if (_sampling_thread.joinable())
+ _sampling_thread.join();
}
-vector< shared_ptr<view::Signal> > SigSession::get_signals()
+set< shared_ptr<data::SignalData> > SigSession::get_data() const
{
lock_guard<mutex> lock(_signals_mutex);
- return _signals;
-}
+ set< shared_ptr<data::SignalData> > data;
+ for (const shared_ptr<view::Signal> sig : _signals) {
+ assert(sig);
+ data.insert(sig->data());
+ }
-boost::shared_ptr<data::Logic> SigSession::get_data()
-{
- return _logic_data;
+ return data;
}
-void SigSession::set_capture_state(capture_state state)
+vector< shared_ptr<view::Signal> > SigSession::get_signals() const
{
- lock_guard<mutex> lock(_sampling_mutex);
- _capture_state = state;
- capture_state_changed(state);
+ lock_guard<mutex> lock(_signals_mutex);
+ return _signals;
}
-void SigSession::load_thread_proc(const string name,
- function<void (const QString)> error_handler)
+#ifdef ENABLE_DECODE
+bool SigSession::add_decoder(srd_decoder *const dec)
{
- if (sr_session_load(name.c_str()) != SR_OK) {
- error_handler(tr("Failed to load file."));
- return;
- }
-
- sr_session_datafeed_callback_add(data_feed_in_proc, NULL);
-
- if (sr_session_start() != SR_OK) {
- error_handler(tr("Failed to start session."));
- return;
- }
+ map<const srd_channel*, shared_ptr<view::LogicSignal> > probes;
+ shared_ptr<data::DecoderStack> decoder_stack;
- set_capture_state(Running);
-
- sr_session_run();
- sr_session_destroy();
-
- set_capture_state(Stopped);
-
- // Confirm that SR_DF_END was received
- assert(!_cur_logic_snapshot);
- assert(!_cur_analog_snapshot);
-}
+ try
+ {
+ lock_guard<mutex> lock(_signals_mutex);
-void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
- uint64_t record_length,
- function<void (const QString)> error_handler)
-{
- assert(sdi);
- assert(error_handler);
+ // Create the decoder
+ decoder_stack = shared_ptr<data::DecoderStack>(
+ new data::DecoderStack(*this, dec));
+
+ // Make a list of all the probes
+ std::vector<const srd_channel*> all_probes;
+ for(const GSList *i = dec->channels; i; i = i->next)
+ all_probes.push_back((const srd_channel*)i->data);
+ for(const GSList *i = dec->opt_channels; i; i = i->next)
+ all_probes.push_back((const srd_channel*)i->data);
+
+ // Auto select the initial probes
+ for (const srd_channel *pdch : all_probes)
+ for (shared_ptr<view::Signal> s : _signals)
+ {
+ shared_ptr<view::LogicSignal> l =
+ dynamic_pointer_cast<view::LogicSignal>(s);
+ if (l && QString::fromUtf8(pdch->name).
+ toLower().contains(
+ l->get_name().toLower()))
+ probes[pdch] = l;
+ }
- sr_session_new();
- sr_session_datafeed_callback_add(data_feed_in_proc, NULL);
+ assert(decoder_stack);
+ assert(!decoder_stack->stack().empty());
+ assert(decoder_stack->stack().front());
+ decoder_stack->stack().front()->set_probes(probes);
- if (sr_session_dev_add(sdi) != SR_OK) {
- error_handler(tr("Failed to use device."));
- sr_session_destroy();
- return;
+ // Create the decode signal
+ shared_ptr<view::DecodeTrace> d(
+ new view::DecodeTrace(*this, decoder_stack,
+ _decode_traces.size()));
+ _decode_traces.push_back(d);
}
-
- // Set the sample limit
- if (sr_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
- g_variant_new_uint64(record_length)) != SR_OK) {
- error_handler(tr("Failed to configure "
- "time-based sample limit."));
- sr_session_destroy();
- return;
+ catch(std::runtime_error e)
+ {
+ return false;
}
- if (sr_session_start() != SR_OK) {
- error_handler(tr("Failed to start session."));
- return;
- }
+ signals_changed();
- set_capture_state(Running);
+ // Do an initial decode
+ decoder_stack->begin_decode();
- sr_session_run();
- sr_session_destroy();
+ return true;
+}
- set_capture_state(Stopped);
+vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const
+{
+ lock_guard<mutex> lock(_signals_mutex);
+ return _decode_traces;
+}
- // Confirm that SR_DF_END was received
- assert(!_cur_logic_snapshot);
- assert(!_cur_analog_snapshot);
+void SigSession::remove_decode_signal(view::DecodeTrace *signal)
+{
+ for (auto i = _decode_traces.begin(); i != _decode_traces.end(); i++)
+ if ((*i).get() == signal)
+ {
+ _decode_traces.erase(i);
+ signals_changed();
+ return;
+ }
}
+#endif
-void SigSession::feed_in_header(const sr_dev_inst *sdi)
+void SigSession::set_capture_state(capture_state state)
{
- shared_ptr<view::Signal> signal;
- GVariant *gvar;
- uint64_t sample_rate = 0;
+ lock_guard<mutex> lock(_sampling_mutex);
+ const bool changed = _capture_state != state;
+ _capture_state = state;
+ if(changed)
+ capture_state_changed(state);
+}
+
+void SigSession::update_signals(shared_ptr<device::DevInst> dev_inst)
+{
+ assert(dev_inst);
+ assert(_capture_state == Stopped);
+
unsigned int logic_probe_count = 0;
- unsigned int analog_probe_count = 0;
+
+ // Clear the decode traces
+ _decode_traces.clear();
// Detect what data types we will receive
- for (const GSList *l = sdi->probes; l; l = l->next) {
- const sr_probe *const probe = (const sr_probe *)l->data;
- if (!probe->enabled)
- continue;
-
- switch(probe->type) {
- case SR_PROBE_LOGIC:
- logic_probe_count++;
- break;
+ if(dev_inst) {
+ assert(dev_inst->dev_inst());
+ for (const GSList *l = dev_inst->dev_inst()->channels;
+ l; l = l->next) {
+ const sr_channel *const probe = (const sr_channel *)l->data;
+ if (!probe->enabled)
+ continue;
- case SR_PROBE_ANALOG:
- analog_probe_count++;
- break;
+ switch(probe->type) {
+ case SR_CHANNEL_LOGIC:
+ logic_probe_count++;
+ break;
+ }
}
}
- // Read out the sample rate
- assert(sdi->driver);
-
- const int ret = sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
- &gvar, sdi);
- if (ret != SR_OK) {
- qDebug("Failed to get samplerate\n");
- return;
- }
-
- sample_rate = g_variant_get_uint64(gvar);
- g_variant_unref(gvar);
-
- // Create data containers for the coming data snapshots
+ // Create data containers for the logic data snapshots
{
lock_guard<mutex> data_lock(_data_mutex);
+ _logic_data.reset();
if (logic_probe_count != 0) {
_logic_data.reset(new data::Logic(
- logic_probe_count, sample_rate));
+ logic_probe_count));
assert(_logic_data);
}
-
- if (analog_probe_count != 0) {
- _analog_data.reset(new data::Analog(sample_rate));
- assert(_analog_data);
- }
}
- // Make the logic probe list
- {
+ // Make the Signals list
+ do {
lock_guard<mutex> lock(_signals_mutex);
_signals.clear();
- for (const GSList *l = sdi->probes; l; l = l->next) {
- const sr_probe *const probe =
- (const sr_probe *)l->data;
+ if(!dev_inst)
+ break;
+
+ assert(dev_inst->dev_inst());
+ for (const GSList *l = dev_inst->dev_inst()->channels;
+ l; l = l->next) {
+ shared_ptr<view::Signal> signal;
+ sr_channel *const probe = (sr_channel *)l->data;
assert(probe);
- if (!probe->enabled)
- continue;
switch(probe->type) {
- case SR_PROBE_LOGIC:
+ case SR_CHANNEL_LOGIC:
signal = shared_ptr<view::Signal>(
- new view::LogicSignal(probe->name,
- _logic_data, probe->index));
+ new view::LogicSignal(dev_inst,
+ probe, _logic_data));
break;
- case SR_PROBE_ANALOG:
+ case SR_CHANNEL_ANALOG:
+ {
+ shared_ptr<data::Analog> data(
+ new data::Analog());
signal = shared_ptr<view::Signal>(
- new view::AnalogSignal(probe->name,
- _analog_data, probe->index));
+ new view::AnalogSignal(dev_inst,
+ probe, data));
+ break;
+ }
+
+ default:
+ assert(0);
break;
}
+ assert(signal);
_signals.push_back(signal);
}
- signals_changed();
+ } while(0);
+
+ signals_changed();
+}
+
+shared_ptr<view::Signal> SigSession::signal_from_probe(
+ const sr_channel *probe) const
+{
+ lock_guard<mutex> lock(_signals_mutex);
+ for (shared_ptr<view::Signal> sig : _signals) {
+ assert(sig);
+ if (sig->probe() == probe)
+ return sig;
+ }
+ return shared_ptr<view::Signal>();
+}
+
+void SigSession::read_sample_rate(const sr_dev_inst *const sdi)
+{
+ GVariant *gvar;
+ uint64_t sample_rate = 0;
+
+ // Read out the sample rate
+ if(sdi->driver)
+ {
+ const int ret = sr_config_get(sdi->driver, sdi, NULL,
+ SR_CONF_SAMPLERATE, &gvar);
+ if (ret != SR_OK) {
+ qDebug("Failed to get samplerate\n");
+ return;
+ }
+
+ sample_rate = g_variant_get_uint64(gvar);
+ g_variant_unref(gvar);
+ }
+
+ // Set the sample rate of all data
+ const set< shared_ptr<data::SignalData> > data_set = get_data();
+ for (shared_ptr<data::SignalData> data : data_set) {
+ assert(data);
+ data->set_samplerate(sample_rate);
+ }
+}
+
+void SigSession::sample_thread_proc(shared_ptr<device::DevInst> dev_inst,
+ function<void (const QString)> error_handler)
+{
+ assert(dev_inst);
+ assert(dev_inst->dev_inst());
+ assert(error_handler);
+
+ read_sample_rate(dev_inst->dev_inst());
+
+ try {
+ dev_inst->start();
+ } catch(const QString e) {
+ error_handler(e);
+ return;
+ }
+
+ set_capture_state(sr_session_trigger_get(_sr_session) ?
+ AwaitingTrigger : Running);
+
+ dev_inst->run();
+ set_capture_state(Stopped);
+
+ // Confirm that SR_DF_END was received
+ if (_cur_logic_snapshot)
+ {
+ qDebug("SR_DF_END was not received.");
+ assert(0);
}
}
+void SigSession::feed_in_header(const sr_dev_inst *sdi)
+{
+ read_sample_rate(sdi);
+}
+
void SigSession::feed_in_meta(const sr_dev_inst *sdi,
const sr_datafeed_meta &meta)
{
break;
}
}
+
+ signals_changed();
+}
+
+void SigSession::feed_in_frame_begin()
+{
+ if (_cur_logic_snapshot || !_cur_analog_snapshots.empty())
+ frame_began();
}
void SigSession::feed_in_logic(const sr_datafeed_logic &logic)
if (!_cur_logic_snapshot)
{
+ // This could be the first packet after a trigger
+ set_capture_state(Running);
+
// Create a new data snapshot
_cur_logic_snapshot = shared_ptr<data::LogicSnapshot>(
- new data::LogicSnapshot(logic));
+ new data::LogicSnapshot(logic, _dev_inst->get_sample_limit()));
_logic_data->push_snapshot(_cur_logic_snapshot);
+
+ // @todo Putting this here means that only listeners querying
+ // for logic will be notified. Currently the only user of
+ // frame_began is DecoderStack, but in future we need to signal
+ // this after both analog and logic sweeps have begun.
+ frame_began();
}
else
{
_cur_logic_snapshot->append_payload(logic);
}
- data_updated();
+ data_received();
}
void SigSession::feed_in_analog(const sr_datafeed_analog &analog)
{
lock_guard<mutex> lock(_data_mutex);
- if(!_analog_data)
- {
- qDebug() << "Unexpected analog packet";
- return; // This analog packet was not expected.
- }
+ const unsigned int probe_count = g_slist_length(analog.channels);
+ const size_t sample_count = analog.num_samples / probe_count;
+ const float *data = analog.data;
+ bool sweep_beginning = false;
- if (!_cur_analog_snapshot)
+ for (GSList *p = analog.channels; p; p = p->next)
{
- // Create a new data snapshot
- _cur_analog_snapshot = shared_ptr<data::AnalogSnapshot>(
- new data::AnalogSnapshot(analog));
- _analog_data->push_snapshot(_cur_analog_snapshot);
+ shared_ptr<data::AnalogSnapshot> snapshot;
+
+ sr_channel *const probe = (sr_channel*)p->data;
+ assert(probe);
+
+ // Try to get the snapshot of the probe
+ const map< const sr_channel*, shared_ptr<data::AnalogSnapshot> >::
+ iterator iter = _cur_analog_snapshots.find(probe);
+ if (iter != _cur_analog_snapshots.end())
+ snapshot = (*iter).second;
+ else
+ {
+ // If no snapshot was found, this means we havn't
+ // created one yet. i.e. this is the first packet
+ // in the sweep containing this snapshot.
+ sweep_beginning = true;
+
+ // Create a snapshot, keep it in the maps of probes
+ snapshot = shared_ptr<data::AnalogSnapshot>(
+ new data::AnalogSnapshot(_dev_inst->get_sample_limit()));
+ _cur_analog_snapshots[probe] = snapshot;
+
+ // Find the annalog data associated with the probe
+ shared_ptr<view::AnalogSignal> sig =
+ dynamic_pointer_cast<view::AnalogSignal>(
+ signal_from_probe(probe));
+ assert(sig);
+
+ shared_ptr<data::Analog> data(sig->analog_data());
+ assert(data);
+
+ // Push the snapshot into the analog data.
+ data->push_snapshot(snapshot);
+ }
+
+ assert(snapshot);
+
+ // Append the samples in the snapshot
+ snapshot->append_interleaved_samples(data++, sample_count,
+ probe_count);
}
- else
- {
- // Append to the existing data snapshot
- _cur_analog_snapshot->append_payload(analog);
+
+ if (sweep_beginning) {
+ // This could be the first packet after a trigger
+ set_capture_state(Running);
}
- data_updated();
+ data_received();
}
void SigSession::data_feed_in(const struct sr_dev_inst *sdi,
*(const sr_datafeed_meta*)packet->payload);
break;
+ case SR_DF_FRAME_BEGIN:
+ feed_in_frame_begin();
+ break;
+
case SR_DF_LOGIC:
assert(packet->payload);
feed_in_logic(*(const sr_datafeed_logic*)packet->payload);
{
lock_guard<mutex> lock(_data_mutex);
_cur_logic_snapshot.reset();
- _cur_analog_snapshot.reset();
+ _cur_analog_snapshots.clear();
}
- data_updated();
+ frame_ended();
break;
}
}
projects / pulseview.git / blobdiff