/*
* 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 <QDebug>
-using namespace boost;
-using namespace std;
+using boost::dynamic_pointer_cast;
+using boost::function;
+using boost::lock_guard;
+using boost::mutex;
+using boost::shared_ptr;
+using std::list;
+using std::map;
+using std::set;
+using std::string;
+using std::vector;
namespace pv {
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_capture();
- _sampling_thread.join();
+ if (_sampling_thread.joinable())
+ _sampling_thread.join();
- if (_sdi)
- _device_manager.release_device(_sdi);
- _sdi = NULL;
+ _dev_inst->release();
// TODO: This should not be necessary
_session = NULL;
}
-struct sr_dev_inst* SigSession::get_device() const
-{
- return _sdi;
-}
-
-void SigSession::set_device(struct sr_dev_inst *sdi)
+shared_ptr<device::DevInst> SigSession::get_device() const
{
- if (_sdi)
- _device_manager.release_device(_sdi);
- if (sdi)
- _device_manager.use_device(sdi, this);
- _sdi = sdi;
- update_signals(sdi);
+ return _dev_inst;
}
-void SigSession::release_device(struct sr_dev_inst *sdi)
+void SigSession::set_device(
+ shared_ptr<device::DevInst> dev_inst) throw(QString)
{
- (void)sdi;
+ using pv::device::Device;
- assert(_capture_state == Stopped);
- _sdi = NULL;
- update_signals(NULL);
-}
-
-void SigSession::load_file(const string &name,
- function<void (const QString)> error_handler)
-{
+ // Ensure we are not capturing before setting the device
stop_capture();
- if (sr_session_load(name.c_str()) == SR_OK) {
- GSList *devlist = NULL;
- sr_session_dev_list(&devlist);
-
- if (!devlist || !devlist->data ||
- sr_session_start() != SR_OK) {
- error_handler(tr("Failed to start session."));
- return;
- }
+ if (_dev_inst) {
+ sr_session_datafeed_callback_remove_all();
+ _dev_inst->release();
+ }
- sr_dev_inst *const sdi = (sr_dev_inst*)devlist->data;
- g_slist_free(devlist);
+ _dev_inst = dev_inst;
+ _decode_traces.clear();
- _decode_traces.clear();
- update_signals(sdi);
- read_sample_rate(sdi);
+ if (dev_inst) {
+ dev_inst->use(this);
+ sr_session_datafeed_callback_add(data_feed_in_proc, NULL);
+ update_signals(dev_inst);
+ }
+}
- _sampling_thread = boost::thread(
- &SigSession::load_session_thread_proc, this,
- error_handler);
+void SigSession::set_file(const string &name) throw(QString)
+{
+ // Deslect the old device, because file type detection in File::create
+ // destorys the old session inside libsigrok.
+ set_device(shared_ptr<device::DevInst>());
+ set_device(shared_ptr<device::DevInst>(device::File::create(name)));
+}
- } else {
- sr_input *in = 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
+ BOOST_FOREACH (shared_ptr<pv::device::Device> dev, devices)
+ if (strcmp(dev->dev_inst()->driver->name,
+ "demo") == 0) {
+ default_device = dev;
+ break;
+ }
+ }
- if (!(in = load_input_file_format(name.c_str(),
- error_handler)))
- return;
+ set_device(default_device);
+}
- _decode_traces.clear();
- update_signals(in->sdi);
- read_sample_rate(in->sdi);
+void SigSession::release_device(device::DevInst *dev_inst)
+{
+ (void)dev_inst;
+ assert(_dev_inst.get() == dev_inst);
- _sampling_thread = boost::thread(
- &SigSession::load_input_thread_proc, this,
- name, in, error_handler);
- }
+ 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 = boost::thread(
- &SigSession::sample_thread_proc, this, _sdi,
- record_length, error_handler);
+ &SigSession::sample_thread_proc, this, _dev_inst,
+ error_handler);
}
void SigSession::stop_capture()
sr_session_stop();
// Check that sampling stopped
- _sampling_thread.join();
+ if (_sampling_thread.joinable())
+ _sampling_thread.join();
}
-vector< shared_ptr<view::Signal> > SigSession::get_signals() const
+set< shared_ptr<data::SignalData> > SigSession::get_data() const
{
lock_guard<mutex> lock(_signals_mutex);
- return _signals;
+ set< shared_ptr<data::SignalData> > data;
+ BOOST_FOREACH(const shared_ptr<view::Signal> sig, _signals) {
+ assert(sig);
+ data.insert(sig->data());
+ }
+
+ return data;
}
-boost::shared_ptr<data::Logic> SigSession::get_data()
+vector< shared_ptr<view::Signal> > SigSession::get_signals() const
{
- return _logic_data;
+ lock_guard<mutex> lock(_signals_mutex);
+ return _signals;
}
+#ifdef ENABLE_DECODE
bool SigSession::add_decoder(srd_decoder *const dec)
{
- map<const srd_probe*, shared_ptr<view::LogicSignal> > probes;
+ map<const srd_channel*, shared_ptr<view::LogicSignal> > probes;
shared_ptr<data::DecoderStack> decoder_stack;
try
// Create the decoder
decoder_stack = shared_ptr<data::DecoderStack>(
- new data::DecoderStack(dec));
+ 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 GSList *i = dec->probes; i; i = i->next)
- {
- const srd_probe *const probe = (const srd_probe*)i->data;
+ BOOST_FOREACH(const srd_channel *pdch, all_probes)
BOOST_FOREACH(shared_ptr<view::Signal> s, _signals)
{
shared_ptr<view::LogicSignal> l =
dynamic_pointer_cast<view::LogicSignal>(s);
- if (l && QString(probe->name).toLower().contains(
+ if (l && QString::fromUtf8(pdch->name).
+ toLower().contains(
l->get_name().toLower()))
- probes[probe] = l;
+ probes[pdch] = l;
}
- }
assert(decoder_stack);
assert(!decoder_stack->stack().empty());
return;
}
}
+#endif
void SigSession::set_capture_state(capture_state state)
{
capture_state_changed(state);
}
-/**
- * Attempts to autodetect the format. Failing that
- * @param filename The filename of the input file.
- * @return A pointer to the 'struct sr_input_format' that should be used,
- * or NULL if no input format was selected or auto-detected.
- */
-sr_input_format* SigSession::determine_input_file_format(
- const string &filename)
-{
- int i;
-
- /* If there are no input formats, return NULL right away. */
- sr_input_format *const *const inputs = sr_input_list();
- if (!inputs) {
- g_critical("No supported input formats available.");
- return NULL;
- }
-
- /* Otherwise, try to find an input module that can handle this file. */
- for (i = 0; inputs[i]; i++) {
- if (inputs[i]->format_match(filename.c_str()))
- break;
- }
-
- /* Return NULL if no input module wanted to touch this. */
- if (!inputs[i]) {
- g_critical("Error: no matching input module found.");
- return NULL;
- }
-
- return inputs[i];
-}
-
-sr_input* SigSession::load_input_file_format(const string &filename,
- function<void (const QString)> error_handler,
- sr_input_format *format)
-{
- struct stat st;
- sr_input *in;
-
- if (!format && !(format =
- determine_input_file_format(filename.c_str()))) {
- /* The exact cause was already logged. */
- return NULL;
- }
-
- if (stat(filename.c_str(), &st) == -1) {
- error_handler(tr("Failed to load file"));
- return NULL;
- }
-
- /* Initialize the input module. */
- if (!(in = new sr_input)) {
- qDebug("Failed to allocate input module.\n");
- return NULL;
- }
-
- in->format = format;
- in->param = NULL;
- if (in->format->init &&
- in->format->init(in, filename.c_str()) != SR_OK) {
- qDebug("Input format init failed.\n");
- return NULL;
- }
-
- sr_session_new();
-
- if (sr_session_dev_add(in->sdi) != SR_OK) {
- qDebug("Failed to use device.\n");
- sr_session_destroy();
- return NULL;
- }
-
- return in;
-}
-
-void SigSession::update_signals(const sr_dev_inst *const sdi)
+void SigSession::update_signals(shared_ptr<device::DevInst> dev_inst)
{
+ assert(dev_inst);
assert(_capture_state == Stopped);
- shared_ptr<view::Signal> signal;
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
- if(sdi) {
- for (const GSList *l = sdi->probes; l; l = l->next) {
- const sr_probe *const probe = (const sr_probe *)l->data;
+ 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;
switch(probe->type) {
- case SR_PROBE_LOGIC:
+ case SR_CHANNEL_LOGIC:
logic_probe_count++;
break;
-
- case SR_PROBE_ANALOG:
- analog_probe_count++;
- break;
}
}
}
- // Create data containers for the data snapshots
+ // Create data containers for the logic data snapshots
{
lock_guard<mutex> data_lock(_data_mutex);
logic_probe_count));
assert(_logic_data);
}
-
- _analog_data.reset();
- if (analog_probe_count != 0) {
- _analog_data.reset(new data::Analog());
- assert(_analog_data);
- }
}
// Make the Signals list
- {
+ do {
lock_guard<mutex> lock(_signals_mutex);
_signals.clear();
- if(sdi) {
- for (const GSList *l = sdi->probes; l; l = l->next) {
- sr_probe *const probe = (sr_probe *)l->data;
- assert(probe);
-
- switch(probe->type) {
- case SR_PROBE_LOGIC:
- signal = shared_ptr<view::Signal>(
- new view::LogicSignal(*this, probe,
- _logic_data));
- break;
-
- case SR_PROBE_ANALOG:
- signal = shared_ptr<view::Signal>(
- new view::AnalogSignal(*this, probe,
- _analog_data));
- break;
- }
-
- _signals.push_back(signal);
+ 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);
+
+ switch(probe->type) {
+ case SR_CHANNEL_LOGIC:
+ signal = shared_ptr<view::Signal>(
+ new view::LogicSignal(dev_inst,
+ probe, _logic_data));
+ break;
+
+ case SR_CHANNEL_ANALOG:
+ {
+ shared_ptr<data::Analog> data(
+ new data::Analog());
+ signal = shared_ptr<view::Signal>(
+ new view::AnalogSignal(dev_inst,
+ probe, data));
+ break;
}
+
+ default:
+ assert(0);
+ break;
+ }
+
+ assert(signal);
+ _signals.push_back(signal);
}
- }
+
+ } while(0);
signals_changed();
}
-bool SigSession::is_trigger_enabled() const
+shared_ptr<view::Signal> SigSession::signal_from_probe(
+ const sr_channel *probe) const
{
- assert(_sdi);
- for (const GSList *l = _sdi->probes; l; l = l->next) {
- const sr_probe *const p = (const sr_probe *)l->data;
- assert(p);
- if (p->trigger && p->trigger[0] != '\0')
- return true;
+ lock_guard<mutex> lock(_signals_mutex);
+ BOOST_FOREACH(shared_ptr<view::Signal> sig, _signals) {
+ assert(sig);
+ if (sig->probe() == probe)
+ return sig;
}
-
- return false;
+ return shared_ptr<view::Signal>();
}
void SigSession::read_sample_rate(const sr_dev_inst *const sdi)
g_variant_unref(gvar);
}
- if(_analog_data)
- _analog_data->set_samplerate(sample_rate);
- if(_logic_data)
- _logic_data->set_samplerate(sample_rate);
-}
-
-void SigSession::load_session_thread_proc(
- function<void (const QString)> error_handler)
-{
- (void)error_handler;
-
- sr_session_datafeed_callback_add(data_feed_in_proc, NULL);
-
- 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);
-}
-
-void SigSession::load_input_thread_proc(const string name,
- sr_input *in, function<void (const QString)> error_handler)
-{
- (void)error_handler;
-
- assert(in);
- assert(in->format);
-
- sr_session_datafeed_callback_add(data_feed_in_proc, NULL);
-
- set_capture_state(Running);
-
- in->format->loadfile(in, name.c_str());
-
- sr_session_destroy();
- set_capture_state(Stopped);
-
- // Confirm that SR_DF_END was received
- assert(!_cur_logic_snapshot);
- assert(!_cur_analog_snapshot);
-
- delete in;
+ // Set the sample rate of all data
+ const set< shared_ptr<data::SignalData> > data_set = get_data();
+ BOOST_FOREACH(shared_ptr<data::SignalData> data, data_set) {
+ assert(data);
+ data->set_samplerate(sample_rate);
+ }
}
-void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
- uint64_t record_length,
+void SigSession::sample_thread_proc(shared_ptr<device::DevInst> dev_inst,
function<void (const QString)> error_handler)
{
- assert(sdi);
+ assert(dev_inst);
+ assert(dev_inst->dev_inst());
assert(error_handler);
- sr_session_new();
- sr_session_datafeed_callback_add(data_feed_in_proc, NULL);
-
- if (sr_session_dev_add(sdi) != SR_OK) {
- error_handler(tr("Failed to use device."));
- sr_session_destroy();
- return;
- }
-
- // Set the sample limit
- if (sr_config_set(sdi, NULL, 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;
- }
+ read_sample_rate(dev_inst->dev_inst());
- if (sr_session_start() != SR_OK) {
- error_handler(tr("Failed to start session."));
+ try {
+ dev_inst->start();
+ } catch(const QString e) {
+ error_handler(e);
return;
}
- set_capture_state(is_trigger_enabled() ? AwaitingTrigger : Running);
-
- sr_session_run();
- sr_session_destroy();
+ set_capture_state(dev_inst->is_trigger_enabled() ?
+ AwaitingTrigger : Running);
+ dev_inst->run();
set_capture_state(Stopped);
// Confirm that SR_DF_END was received
- assert(!_cur_logic_snapshot);
- assert(!_cur_analog_snapshot);
+ if (_cur_logic_snapshot)
+ {
+ qDebug("SR_DF_END was not received.");
+ assert(0);
+ }
}
void SigSession::feed_in_header(const sr_dev_inst *sdi)
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)
{
lock_guard<mutex> lock(_data_mutex);
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)
{
- set_capture_state(Running);
+ shared_ptr<data::AnalogSnapshot> snapshot;
- // Create a new data snapshot
- _cur_analog_snapshot = shared_ptr<data::AnalogSnapshot>(
- new data::AnalogSnapshot(analog));
- _analog_data->push_snapshot(_cur_analog_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