GNU Radio block for interfacing with various radio hardware
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gr-osmosdr/lib/fcd/fcd_source_c.cc

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/* -*- c++ -*- */
/*
* Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <fstream>
#include <string>
#include <sstream>
#include <boost/assign.hpp>
#include <boost/foreach.hpp>
#include <gnuradio/io_signature.h>
#include "fcd_source_c.h"
#include "arg_helpers.h"
using namespace boost::assign;
fcd_source_c_sptr make_fcd_source_c(const std::string &args)
{
return gnuradio::get_initial_sptr(new fcd_source_c(args));
}
/*
2 [V10 ]: USB-Audio - FUNcube Dongle V1.0
Hanlincrest Ltd. FUNcube Dongle V1.0 at usb-0000:00:1d.0-2, full speed
*/
static std::vector< std::string > _get_devices()
{
std::vector< std::string > devices;
std::string line;
std::ifstream cards( "/proc/asound/cards" );
if ( cards.is_open() )
{
while ( cards.good() )
{
getline (cards, line);
if ( line.find( "USB-Audio - FUNcube Dongle" ) != std::string::npos )
{
int id;
std::istringstream( line ) >> id;
std::ostringstream hw_id;
hw_id << "hw:" << id; // build alsa identifier
devices += hw_id.str();
}
}
cards.close();
}
return devices;
}
fcd_source_c::fcd_source_c(const std::string &args) :
gr::hier_block2("fcd_source_c",
gr::io_signature::make(0, 0, 0),
gr::io_signature::make(1, 1, sizeof (gr_complex)))
{
std::string dev_name;
unsigned int dev_index = 0;
dict_t dict = params_to_dict(args);
if (dict.count("fcd"))
dev_index = boost::lexical_cast< unsigned int >( dict["fcd"] );
std::vector< std::string > devices = _get_devices();
if ( devices.size() )
dev_name = devices[dev_index];
else
throw std::runtime_error("No FunCube Dongle found.");
_src = gr::fcd::source_c::make( dev_name );
connect( _src, 0, self(), 0 );
}
fcd_source_c::~fcd_source_c()
{
}
std::vector< std::string > fcd_source_c::get_devices()
{
int id = 0;
std::vector< std::string > devices;
BOOST_FOREACH( std::string dev, _get_devices() ) {
std::string args = "fcd=" + boost::lexical_cast< std::string >( id++ );
args += ",label='FunCube Dongle'";
devices.push_back( args );
}
return devices;
}
std::string fcd_source_c::name()
{
return "FUNcube Dongle";
}
size_t fcd_source_c::get_num_channels( void )
{
return 1;
}
osmosdr::meta_range_t fcd_source_c::get_sample_rates( void )
{
osmosdr::meta_range_t range;
range += osmosdr::range_t( get_sample_rate() );
return range;
}
double fcd_source_c::set_sample_rate( double rate )
{
return get_sample_rate();
}
double fcd_source_c::get_sample_rate( void )
{
return 96e3;
}
osmosdr::freq_range_t fcd_source_c::get_freq_range( size_t chan )
{
osmosdr::freq_range_t range( 52e6, 2.2e9 );
return range;
}
double fcd_source_c::set_center_freq( double freq, size_t chan )
{
_src->set_freq(float(freq));
_freq = freq;
return get_center_freq(chan);
}
double fcd_source_c::get_center_freq( size_t chan )
{
return _freq;
}
double fcd_source_c::set_freq_corr( double ppm, size_t chan )
{
_src->set_freq_corr( ppm );
_correct = ppm;
return get_freq_corr( chan );
}
double fcd_source_c::get_freq_corr( size_t chan )
{
return _correct;
}
std::vector<std::string> fcd_source_c::get_gain_names( size_t chan )
{
std::vector< std::string > names;
names += "LNA";
return names;
}
osmosdr::gain_range_t fcd_source_c::get_gain_range( size_t chan )
{
osmosdr::gain_range_t range(-5, 30, 2.5);
return range;
}
osmosdr::gain_range_t fcd_source_c::get_gain_range( const std::string & name, size_t chan )
{
return get_gain_range( chan );
}
double fcd_source_c::set_gain( double gain, size_t chan )
{
_src->set_lna_gain(gain);
_gain = gain;
return get_gain(chan);
}
double fcd_source_c::set_gain( double gain, const std::string & name, size_t chan )
{
return set_gain(chan);
}
double fcd_source_c::get_gain( size_t chan )
{
return _gain;
}
double fcd_source_c::get_gain( const std::string & name, size_t chan )
{
return get_gain(chan);
}
std::vector< std::string > fcd_source_c::get_antennas( size_t chan )
{
std::vector< std::string > antennas;
antennas += get_antenna(chan);
return antennas;
}
std::string fcd_source_c::set_antenna( const std::string & antenna, size_t chan )
{
return get_antenna(chan);
}
std::string fcd_source_c::get_antenna( size_t chan )
{
return "RX";
}