mirror of https://github.com/gnss-sdr/gnss-sdr
237 lines
8.4 KiB
C++
237 lines
8.4 KiB
C++
/*!
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* \file labsat_signal_source.cc
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* \brief LabSat version 2, 3, and 3 Wideband format reader
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* \author Javier Arribas, jarribas(at)cttc.es
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*
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* -----------------------------------------------------------------------------
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "labsat_signal_source.h"
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#include "configuration_interface.h"
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#include "gnss_sdr_string_literals.h"
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#include "labsat23_source.h"
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#include <glog/logging.h>
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#include <iostream>
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#include <sstream>
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using namespace std::string_literals;
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LabsatSignalSource::LabsatSignalSource(const ConfigurationInterface* configuration,
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const std::string& role,
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unsigned int in_stream,
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unsigned int out_stream,
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Concurrent_Queue<pmt::pmt_t>* queue)
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: SignalSourceBase(configuration, role, "Labsat_Signal_Source"s),
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in_stream_(in_stream),
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out_stream_(out_stream),
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enable_throttle_control_(configuration->property(role + ".enable_throttle_control", false)),
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dump_(configuration->property(role + ".dump", false))
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{
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const std::string default_item_type("gr_complex");
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const std::string default_dump_file("./labsat_output.dat");
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item_type_ = configuration->property(role + ".item_type", default_item_type);
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dump_filename_ = configuration->property(role + ".dump_filename", default_dump_file);
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const int64_t sampling_frequency_deprecated = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(16368000));
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const int64_t throttle_frequency_sps = configuration->property(role + ".throttle_frequency_sps", static_cast<int64_t>(sampling_frequency_deprecated));
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std::string channels_to_read = configuration->property(role + ".selected_channel", default_item_type);
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std::stringstream ss(channels_to_read);
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int found;
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while (ss.good())
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{
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std::string substr;
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getline(ss, substr, ',');
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if (std::stringstream(substr) >> found)
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{
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if (found >= 1 && found <= 3)
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{
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channels_selector_vec_.push_back(found);
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}
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}
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}
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if (channels_selector_vec_.empty())
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{
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channels_selector_vec_.push_back(1);
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}
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const std::string default_filename("./example_capture.LS3");
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filename_ = configuration->property(role + ".filename", default_filename);
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const bool digital_io_enabled = configuration->property(role + ".digital_io_enabled", false);
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if (item_type_ == "gr_complex")
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{
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item_size_ = sizeof(gr_complex);
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labsat23_source_ = labsat23_make_source_sptr(filename_.c_str(), channels_selector_vec_, queue, digital_io_enabled);
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DLOG(INFO) << "Item size " << item_size_;
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DLOG(INFO) << "labsat23_source_(" << labsat23_source_->unique_id() << ")";
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}
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else
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{
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LOG(WARNING) << item_type_ << " unrecognized item type for LabSat source";
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item_size_ = sizeof(int16_t);
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}
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if (dump_)
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{
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std::vector<std::string> dump_filename;
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file_sink_.reserve(channels_selector_vec_.size());
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for (int i : channels_selector_vec_)
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{
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if (channels_selector_vec_.size() == 1)
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{
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dump_filename.push_back(dump_filename_);
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}
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else
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{
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std::string aux(dump_filename_.substr(0, dump_filename_.length() - 4));
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std::string extension(dump_filename_.substr(dump_filename_.length() - 3, dump_filename_.length()));
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if (i == 1)
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{
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aux += "_chA."s;
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}
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if (i == 2)
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{
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aux += "_chB."s;
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}
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if (i == 3)
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{
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aux += "_chC."s;
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}
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dump_filename.push_back(aux + extension);
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}
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std::cout << "Dumping output into file " << dump_filename.back() << '\n';
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file_sink_.push_back(gr::blocks::file_sink::make(item_size_, dump_filename.back().c_str()));
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DLOG(INFO) << "file_sink(" << file_sink_.back()->unique_id() << ")";
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}
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}
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if (enable_throttle_control_)
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{
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for (auto it = channels_selector_vec_.begin(); it != channels_selector_vec_.end(); ++it)
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{
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throttle_.push_back(gr::blocks::throttle::make(item_size_, throttle_frequency_sps));
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}
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}
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if (in_stream_ > 0)
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{
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LOG(ERROR) << "A signal source does not have an input stream";
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}
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if (out_stream_ > 3)
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{
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LOG(ERROR) << "This implementation supports up to 3 output streams";
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}
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}
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size_t LabsatSignalSource::getRfChannels() const
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{
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return channels_selector_vec_.size();
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}
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void LabsatSignalSource::connect(gr::top_block_sptr top_block)
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{
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if (enable_throttle_control_ == true)
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{
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int rf_chan = 0;
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for (const auto& th : throttle_)
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{
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top_block->connect(labsat23_source_, rf_chan, th, 0);
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DLOG(INFO) << "connected labsat23_source_ to throttle";
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if (dump_)
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{
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top_block->connect(labsat23_source_, rf_chan, file_sink_[rf_chan], 0);
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DLOG(INFO) << "connected labsat23_source_to sink";
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}
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rf_chan++;
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}
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}
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else
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{
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int rf_chan = 0;
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for (auto it = channels_selector_vec_.begin(); it != channels_selector_vec_.end(); ++it)
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{
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if (dump_)
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{
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top_block->connect(labsat23_source_, 0, file_sink_[rf_chan], 0);
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DLOG(INFO) << "connected labsat23_source_ to sink";
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}
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else
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{
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DLOG(INFO) << "nothing to connect internally";
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}
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rf_chan++;
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}
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}
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}
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void LabsatSignalSource::disconnect(gr::top_block_sptr top_block)
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{
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if (enable_throttle_control_ == true)
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{
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int rf_chan = 0;
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for (const auto& th : throttle_)
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{
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top_block->disconnect(labsat23_source_, rf_chan, th, 0);
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DLOG(INFO) << "disconnected labsat23_source_ to throttle";
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if (dump_)
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{
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top_block->disconnect(labsat23_source_, rf_chan, file_sink_[rf_chan], 0);
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DLOG(INFO) << "disconnected labsat23_source_ to sink";
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}
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rf_chan++;
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}
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}
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else
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{
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int rf_chan = 0;
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for (auto it = channels_selector_vec_.begin(); it != channels_selector_vec_.end(); ++it)
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{
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if (dump_)
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{
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top_block->disconnect(labsat23_source_, rf_chan, file_sink_[rf_chan], 0);
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DLOG(INFO) << "disconnected labsat23_source_ to sink";
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}
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rf_chan++;
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}
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}
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}
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gr::basic_block_sptr LabsatSignalSource::get_left_block()
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{
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LOG(WARNING) << "Left block of a signal source should not be retrieved";
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return gr::block_sptr();
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}
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gr::basic_block_sptr LabsatSignalSource::get_right_block()
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{
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if (enable_throttle_control_ == true)
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{
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return throttle_[0];
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}
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return labsat23_source_;
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}
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gr::basic_block_sptr LabsatSignalSource::get_right_block(int i)
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{
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if (enable_throttle_control_ == true)
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{
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return throttle_[i];
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}
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return labsat23_source_;
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}
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