mirror of https://github.com/gnss-sdr/gnss-sdr
126 lines
3.8 KiB
C++
126 lines
3.8 KiB
C++
/*!
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* \file gn3s_signal_source.cc
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* \brief GN3S USB dongle GPS RF front-end signal sampler driver
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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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* Copyright (C) 2010-2012 (see AUTHORS file for a list of contributors)
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*
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* GNSS-SDR is a software defined Global Navigation
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* Satellite Systems receiver
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include "gn3s_signal_source.h"
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#include <gnuradio/gr_file_sink.h>
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#include <gnuradio/gr_msg_queue.h>
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#include <gn3s/gn3s_source_cc.h>
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#include "configuration_interface.h"
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#include <glog/log_severity.h>
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#include <glog/logging.h>
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using google::LogMessage;
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Gn3sSignalSource::Gn3sSignalSource(ConfigurationInterface* configuration,
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std::string role, unsigned int in_stream, unsigned int out_stream, gr_msg_queue_sptr queue) :
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role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(queue)
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{
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std::string default_item_type = "short";
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std::string default_dump_file = "./data/gn3s_source.dat";
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item_type_ = configuration->property(role + ".item_type",
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default_item_type);
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dump_ = configuration->property(role + ".dump", false);
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dump_filename_ = configuration->property(role + ".dump_filename",
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default_dump_file);
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if (item_type_.compare("gr_complex") == 0)
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{
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item_size_ = sizeof(gr_complex);
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gn3s_source_ = gn3s_make_source_cc();
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DLOG(INFO) << "Item size " << item_size_;
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DLOG(INFO) << "gn3s_source(" << gn3s_source_->unique_id() << ")";
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}
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// else if (item_type_.compare("short") == 0)
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// {
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// item_size_ = sizeof(short);
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// resampler_ = direct_resampler_make_conditioner_ss(sample_freq_in_,
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// sample_freq_out_);
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// }
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else
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{
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LOG_AT_LEVEL(WARNING) << item_type_
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<< " unrecognized item type for resampler";
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item_size_ = sizeof(short);
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}
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if (dump_)
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{
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DLOG(INFO) << "Dumping output into file " << dump_filename_;
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file_sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
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}
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if (dump_)
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{
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DLOG(INFO) << "file_sink(" << file_sink_->unique_id() << ")";
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}
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}
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Gn3sSignalSource::~Gn3sSignalSource()
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{}
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void Gn3sSignalSource::connect(gr_top_block_sptr top_block)
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{
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if (dump_)
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{
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top_block->connect(gn3s_source_, 0, file_sink_, 0);
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DLOG(INFO) << "connected gn3s_source to file 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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}
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void Gn3sSignalSource::disconnect(gr_top_block_sptr top_block)
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{
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if (dump_)
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{
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top_block->disconnect(gn3s_source_, 0, file_sink_, 0);
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}
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}
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gr_basic_block_sptr Gn3sSignalSource::get_left_block()
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{
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LOG_AT_LEVEL(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 Gn3sSignalSource::get_right_block()
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{
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return gn3s_source_;
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}
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