/*
* 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 "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 <stdexcept>
+
+#include <boost/foreach.hpp>
+
+#include <sys/stat.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::map;
+using std::set;
+using std::string;
+using std::vector;
namespace pv {
// TODO: This should not be necessary
SigSession* SigSession::_session = NULL;
-SigSession::SigSession() :
+SigSession::SigSession(DeviceManager &device_manager) :
+ _device_manager(device_manager),
_sdi(NULL),
_capture_state(Stopped)
{
{
stop_capture();
- if (_sampling_thread.get())
- _sampling_thread->join();
- _sampling_thread.reset();
+ _sampling_thread.join();
+
+ if (_sdi)
+ _device_manager.release_device(_sdi);
+ _sdi = NULL;
// 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)
{
+ // Ensure we are not capturing before setting the device
+ stop_capture();
+
if (_sdi)
- sr_dev_close(_sdi);
+ _device_manager.release_device(_sdi);
if (sdi)
- sr_dev_open(sdi);
+ _device_manager.use_device(sdi, this);
_sdi = sdi;
+ update_signals(sdi);
+}
+
+void SigSession::release_device(struct sr_dev_inst *sdi)
+{
+ (void)sdi;
+
+ assert(_capture_state == Stopped);
+ _sdi = NULL;
+ update_signals(NULL);
}
void SigSession::load_file(const string &name,
function<void (const QString)> error_handler)
{
stop_capture();
- _sampling_thread.reset(new boost::thread(
- &SigSession::load_thread_proc, this, name,
- error_handler));
+
+ 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;
+ }
+
+ sr_dev_inst *const sdi = (sr_dev_inst*)devlist->data;
+ g_slist_free(devlist);
+
+ _decode_traces.clear();
+ update_signals(sdi);
+ read_sample_rate(sdi);
+
+ _sampling_thread = boost::thread(
+ &SigSession::load_session_thread_proc, this,
+ error_handler);
+
+ } else {
+ sr_input *in = NULL;
+
+ if (!(in = load_input_file_format(name.c_str(),
+ error_handler)))
+ return;
+
+ _decode_traces.clear();
+ update_signals(in->sdi);
+ read_sample_rate(in->sdi);
+
+ _sampling_thread = boost::thread(
+ &SigSession::load_input_thread_proc, this,
+ name, in, error_handler);
+ }
}
SigSession::capture_state SigSession::get_capture_state() const
}
// Begin the session
- _sampling_thread.reset(new boost::thread(
+ _sampling_thread = boost::thread(
&SigSession::sample_thread_proc, this, _sdi,
- record_length, error_handler));
+ record_length, error_handler);
}
void SigSession::stop_capture()
sr_session_stop();
// Check that sampling stopped
- if (_sampling_thread.get())
- _sampling_thread->join();
- _sampling_thread.reset();
+ _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);
+ set< shared_ptr<data::SignalData> > data;
+ BOOST_FOREACH(const shared_ptr<view::Signal> sig, _signals) {
+ assert(sig);
+ data.insert(sig->data());
+ }
+
+ return data;
+}
+
+vector< shared_ptr<view::Signal> > SigSession::get_signals() const
{
lock_guard<mutex> lock(_signals_mutex);
return _signals;
}
-boost::shared_ptr<data::Logic> SigSession::get_data()
+#ifdef ENABLE_DECODE
+bool SigSession::add_decoder(srd_decoder *const dec)
{
- return _logic_data;
+ map<const srd_probe*, shared_ptr<view::LogicSignal> > probes;
+ shared_ptr<data::DecoderStack> decoder_stack;
+
+ try
+ {
+ lock_guard<mutex> lock(_signals_mutex);
+
+ // Create the decoder
+ decoder_stack = shared_ptr<data::DecoderStack>(
+ new data::DecoderStack(dec));
+
+ // 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(shared_ptr<view::Signal> s, _signals)
+ {
+ shared_ptr<view::LogicSignal> l =
+ dynamic_pointer_cast<view::LogicSignal>(s);
+ if (l && QString::fromUtf8(probe->name).
+ toLower().contains(
+ l->get_name().toLower()))
+ probes[probe] = l;
+ }
+ }
+
+ assert(decoder_stack);
+ assert(!decoder_stack->stack().empty());
+ assert(decoder_stack->stack().front());
+ decoder_stack->stack().front()->set_probes(probes);
+
+ // Create the decode signal
+ shared_ptr<view::DecodeTrace> d(
+ new view::DecodeTrace(*this, decoder_stack,
+ _decode_traces.size()));
+ _decode_traces.push_back(d);
+ }
+ catch(std::runtime_error e)
+ {
+ return false;
+ }
+
+ signals_changed();
+
+ // Do an initial decode
+ decoder_stack->begin_decode();
+
+ return true;
}
+vector< shared_ptr<view::DecodeTrace> > SigSession::get_decode_signals() const
+{
+ lock_guard<mutex> lock(_signals_mutex);
+ return _decode_traces;
+}
+
+void SigSession::remove_decode_signal(view::DecodeTrace *signal)
+{
+ for (vector< shared_ptr<view::DecodeTrace> >::iterator i =
+ _decode_traces.begin();
+ i != _decode_traces.end();
+ i++)
+ if ((*i).get() == signal)
+ {
+ _decode_traces.erase(i);
+ signals_changed();
+ return;
+ }
+}
+#endif
+
void SigSession::set_capture_state(capture_state state)
{
lock_guard<mutex> lock(_sampling_mutex);
+ const bool changed = _capture_state != state;
_capture_state = state;
- capture_state_changed(state);
+ if(changed)
+ capture_state_changed(state);
}
-void SigSession::load_thread_proc(const string name,
- function<void (const QString)> error_handler)
+/**
+ * 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)
{
- if (sr_session_load(name.c_str()) != SR_OK) {
- error_handler(tr("Failed to load file."));
- return;
+ 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;
}
- sr_session_datafeed_callback_add(data_feed_in_proc, 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;
+ }
- if (sr_session_start() != SR_OK) {
- error_handler(tr("Failed to start session."));
- return;
+ /* 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)
+{
+ 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 (!probe->enabled)
+ continue;
+
+ switch(probe->type) {
+ case SR_PROBE_LOGIC:
+ logic_probe_count++;
+ break;
+
+ case SR_PROBE_ANALOG:
+ analog_probe_count++;
+ break;
+ }
+ }
+ }
+
+ // Create data containers for the 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));
+ assert(_logic_data);
+ }
+
+ _analog_data.reset();
+ if (analog_probe_count != 0) {
+ _analog_data.reset(new data::Analog());
+ assert(_analog_data);
+ }
+ }
+
+ // Make the Signals list
+ {
+ 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);
+ }
+ }
+ }
+
+ signals_changed();
+}
+
+bool SigSession::is_trigger_enabled() 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;
+ }
+
+ return false;
+}
+
+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);
}
+ 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;
}
void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
}
// Set the sample limit
- if (sr_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
+ 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."));
return;
}
- set_capture_state(Running);
+ set_capture_state(is_trigger_enabled() ? AwaitingTrigger : Running);
sr_session_run();
sr_session_destroy();
void SigSession::feed_in_header(const sr_dev_inst *sdi)
{
- shared_ptr<view::Signal> signal;
- GVariant *gvar;
- uint64_t sample_rate = 0;
- unsigned int logic_probe_count = 0;
- unsigned int analog_probe_count = 0;
-
- // 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;
-
- case SR_PROBE_ANALOG:
- analog_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
- {
- lock_guard<mutex> data_lock(_data_mutex);
-
- if (logic_probe_count != 0) {
- _logic_data.reset(new data::Logic(
- logic_probe_count, sample_rate));
- assert(_logic_data);
- }
-
- if (analog_probe_count != 0) {
- _analog_data.reset(new data::Analog(sample_rate));
- assert(_analog_data);
- }
- }
-
- // Make the logic probe list
- {
- 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;
- assert(probe);
- if (!probe->enabled)
- continue;
-
- switch(probe->type) {
- case SR_PROBE_LOGIC:
- signal = shared_ptr<view::Signal>(
- new view::LogicSignal(probe->name,
- _logic_data, probe->index));
- break;
-
- case SR_PROBE_ANALOG:
- signal = shared_ptr<view::Signal>(
- new view::AnalogSignal(probe->name,
- _analog_data, probe->index));
- break;
- }
-
- _signals.push_back(signal);
- }
-
- signals_changed();
- }
+ read_sample_rate(sdi);
}
void SigSession::feed_in_meta(const sr_dev_inst *sdi,
break;
}
}
+
+ signals_changed();
}
void SigSession::feed_in_logic(const sr_datafeed_logic &logic)
if (!_cur_logic_snapshot)
{
+ set_capture_state(Running);
+
// Create a new data snapshot
_cur_logic_snapshot = shared_ptr<data::LogicSnapshot>(
new data::LogicSnapshot(logic));
if (!_cur_analog_snapshot)
{
+ set_capture_state(Running);
+
// Create a new data snapshot
_cur_analog_snapshot = shared_ptr<data::AnalogSnapshot>(
new data::AnalogSnapshot(analog));
projects / pulseview.git / blobdiff