mirror of https://github.com/gnss-sdr/gnss-sdr
198 lines
6.5 KiB
C++
198 lines
6.5 KiB
C++
/*!
|
|
* \file rtl_tcp_signal_source.cc
|
|
* \brief Signal source for the Realtek RTL2832U USB dongle DVB-T receiver
|
|
* over TCP.
|
|
* (see https://osmocom.org/projects/rtl-sdr/wiki for more information)
|
|
* \author Anthony Arnold, 2015. anthony.arnold(at)uqconnect.edu.au
|
|
*
|
|
* -----------------------------------------------------------------------------
|
|
*
|
|
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
|
|
* This file is part of GNSS-SDR.
|
|
*
|
|
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
|
|
* SPDX-License-Identifier: GPL-3.0-or-later
|
|
*
|
|
* -----------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include "rtl_tcp_signal_source.h"
|
|
#include "GPS_L1_CA.h"
|
|
#include "configuration_interface.h"
|
|
#include "gnss_sdr_string_literals.h"
|
|
#include "gnss_sdr_valve.h"
|
|
#include <glog/logging.h>
|
|
#include <cstdint>
|
|
#include <iostream>
|
|
#include <utility>
|
|
|
|
using namespace std::string_literals;
|
|
|
|
RtlTcpSignalSource::RtlTcpSignalSource(const ConfigurationInterface* configuration,
|
|
const std::string& role,
|
|
unsigned int in_stream,
|
|
unsigned int out_stream,
|
|
Concurrent_Queue<pmt::pmt_t>* queue)
|
|
: SignalSourceBase(configuration, role, "RtlTcp_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
|
|
{
|
|
// DUMP PARAMETERS
|
|
const std::string default_dump_file("./data/signal_source.dat");
|
|
const std::string default_item_type("gr_complex");
|
|
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
|
|
dump_ = configuration->property(role + ".dump", false);
|
|
dump_filename_ = configuration->property(role + ".dump_filename",
|
|
default_dump_file);
|
|
|
|
// rtl_tcp PARAMETERS
|
|
const std::string default_address("127.0.0.1");
|
|
const int16_t default_port = 1234;
|
|
AGC_enabled_ = configuration->property(role + ".AGC_enabled", true);
|
|
freq_ = configuration->property(role + ".freq", static_cast<int>(GPS_L1_FREQ_HZ));
|
|
gain_ = configuration->property(role + ".gain", 40);
|
|
rf_gain_ = configuration->property(role + ".rf_gain", 40.0);
|
|
if_gain_ = configuration->property(role + ".if_gain", 40);
|
|
sample_rate_ = configuration->property(role + ".sampling_frequency", 2000000);
|
|
item_type_ = configuration->property(role + ".item_type", default_item_type);
|
|
address_ = configuration->property(role + ".address", default_address);
|
|
port_ = configuration->property(role + ".port", default_port);
|
|
flip_iq_ = configuration->property(role + ".flip_iq", false);
|
|
|
|
if (item_type_ == "short")
|
|
{
|
|
item_size_ = sizeof(int16_t);
|
|
}
|
|
else if (item_type_ == "gr_complex")
|
|
{
|
|
item_size_ = sizeof(gr_complex);
|
|
// 1. Make the gr block
|
|
MakeBlock();
|
|
|
|
// 2 set sampling rate
|
|
signal_source_->set_sample_rate(sample_rate_);
|
|
|
|
// 3. set rx frequency
|
|
signal_source_->set_frequency(freq_);
|
|
|
|
// 4. set rx gain
|
|
signal_source_->set_agc_mode(true);
|
|
|
|
if (this->AGC_enabled_ == true)
|
|
{
|
|
std::cout << "AGC enabled\n";
|
|
LOG(INFO) << "AGC enabled";
|
|
signal_source_->set_agc_mode(true);
|
|
}
|
|
else
|
|
{
|
|
std::cout << "AGC disabled\n";
|
|
LOG(INFO) << "AGC disabled";
|
|
signal_source_->set_agc_mode(false);
|
|
|
|
std::cout << "Setting gain to " << gain_ << '\n';
|
|
LOG(INFO) << "Setting gain to " << gain_;
|
|
signal_source_->set_gain(gain_);
|
|
|
|
std::cout << "Setting IF gain to " << if_gain_ << '\n';
|
|
LOG(INFO) << "Setting IF gain to " << if_gain_;
|
|
signal_source_->set_if_gain(if_gain_);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LOG(WARNING) << item_type_ << " unrecognized item type. Using short.";
|
|
item_size_ = sizeof(int16_t);
|
|
}
|
|
|
|
if (samples_ != 0ULL)
|
|
{
|
|
DLOG(INFO) << "Send STOP signal after " << samples_ << " samples";
|
|
valve_ = gnss_sdr_make_valve(item_size_, samples_, queue);
|
|
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
|
|
}
|
|
|
|
if (dump_)
|
|
{
|
|
DLOG(INFO) << "Dumping output into file " << dump_filename_;
|
|
file_sink_ = gr::blocks::file_sink::make(item_size_, dump_filename_.c_str());
|
|
DLOG(INFO) << "file_sink(" << file_sink_->unique_id() << ")";
|
|
}
|
|
if (in_stream_ > 0)
|
|
{
|
|
LOG(ERROR) << "A signal source does not have an input stream";
|
|
}
|
|
if (out_stream_ > 1)
|
|
{
|
|
LOG(ERROR) << "This implementation only supports one output stream";
|
|
}
|
|
}
|
|
|
|
|
|
void RtlTcpSignalSource::MakeBlock()
|
|
{
|
|
try
|
|
{
|
|
std::cout << "Connecting to " << address_ << ":" << port_ << '\n';
|
|
LOG(INFO) << "Connecting to " << address_ << ":" << port_;
|
|
signal_source_ = rtl_tcp_make_signal_source_c(address_, port_, flip_iq_);
|
|
}
|
|
catch (const boost::exception& e)
|
|
{
|
|
LOG(WARNING) << "Boost exception: " << boost::diagnostic_information(e);
|
|
throw std::runtime_error("Failure connecting to the device");
|
|
}
|
|
}
|
|
|
|
|
|
void RtlTcpSignalSource::connect(gr::top_block_sptr top_block)
|
|
{
|
|
if (samples_ != 0ULL)
|
|
{
|
|
top_block->connect(signal_source_, 0, valve_, 0);
|
|
DLOG(INFO) << "connected rtl tcp source to valve";
|
|
if (dump_)
|
|
{
|
|
top_block->connect(valve_, 0, file_sink_, 0);
|
|
DLOG(INFO) << "connected valve to file sink";
|
|
}
|
|
}
|
|
else if (dump_)
|
|
{
|
|
top_block->connect(signal_source_, 0, file_sink_, 0);
|
|
DLOG(INFO) << "connected rtl tcp source to file sink";
|
|
}
|
|
}
|
|
|
|
|
|
void RtlTcpSignalSource::disconnect(gr::top_block_sptr top_block)
|
|
{
|
|
if (samples_ != 0ULL)
|
|
{
|
|
top_block->disconnect(signal_source_, 0, valve_, 0);
|
|
if (dump_)
|
|
{
|
|
top_block->disconnect(valve_, 0, file_sink_, 0);
|
|
}
|
|
}
|
|
else if (dump_)
|
|
{
|
|
top_block->disconnect(signal_source_, 0, file_sink_, 0);
|
|
}
|
|
}
|
|
|
|
|
|
gr::basic_block_sptr RtlTcpSignalSource::get_left_block()
|
|
{
|
|
LOG(WARNING) << "Trying to get signal source left block.";
|
|
return gr::basic_block_sptr();
|
|
}
|
|
|
|
|
|
gr::basic_block_sptr RtlTcpSignalSource::get_right_block()
|
|
{
|
|
if (samples_ != 0ULL)
|
|
{
|
|
return valve_;
|
|
}
|
|
return signal_source_;
|
|
}
|