forked from sdr/gr-osmosdr
322 lines
7.7 KiB
C++
322 lines
7.7 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2012 Dimitri Stolnikov <horiz0n@gmx.net>
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*
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* GNU Radio 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, or (at your option)
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* any later version.
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*
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* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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* config.h is generated by configure. It contains the results
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* of probing for features, options etc. It should be the first
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* file included in your .cc file.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "osmosdr_src_c.h"
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#include <gr_io_signature.h>
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#include <gr_audio_source.h>
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#include <gr_float_to_complex.h>
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#include <boost/assign.hpp>
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#include <osmosdr_arg_helpers.h>
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using namespace boost::assign;
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/*
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* Create a new instance of osmosdr_src_c and return
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* a boost shared_ptr. This is effectively the public constructor.
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*/
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osmosdr_src_c_sptr
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osmosdr_make_src_c (const std::string &args)
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{
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return gnuradio::get_initial_sptr(new osmosdr_src_c (args));
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}
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/*
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* The private constructor
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*/
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osmosdr_src_c::osmosdr_src_c (const std::string &args)
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: gr_hier_block2 ("osmosdr_src_c",
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gr_make_io_signature (0, 0, sizeof (gr_complex)),
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args_to_io_signature(args)),
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osmosdr_rx_control(args)
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{
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std::string dev_name;
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unsigned int dev_index = 0, mcr = 0;
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size_t nchan = 1;
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dict_t dict = params_to_dict(args);
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if (dict.count("osmosdr"))
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dev_index = boost::lexical_cast< unsigned int >( dict["osmosdr"] );
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if (dict.count("mcr"))
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mcr = (unsigned int) boost::lexical_cast< double >( dict["mcr"] );
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if (dict.count("nchan"))
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nchan = boost::lexical_cast< size_t >( dict["nchan"] );
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std::vector< std::string > devices = osmosdr_control::find_devices();
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if ( devices.size() )
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dev_name = devices[dev_index];
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else
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throw std::runtime_error("No OsmoSDR devices found.");
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/* Audio source; sample rate is 500kHz by default */
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audio_source::sptr src = audio_make_source(500000, dev_name, true);
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/* block to convert stereo audio to a complex stream */
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gr_float_to_complex_sptr f2c = gr_make_float_to_complex(1);
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connect(src, 0, f2c, 0); /* Left is I */
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connect(src, 1, f2c, 1); /* Right is Q */
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connect(f2c, 0, self(), 0);
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_auto_gain = false;
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}
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/*
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* Our virtual destructor.
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*/
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osmosdr_src_c::~osmosdr_src_c ()
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{
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// nothing else required in this example
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}
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std::vector<std::string> osmosdr_src_c::get_devices()
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{
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int id = 0;
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std::vector< std::string > devices;
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BOOST_FOREACH( std::string dev, osmosdr_control::find_devices() ) {
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std::string args = "osmosdr=" + boost::lexical_cast< std::string >( id++ );
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args += ",label='sysmocom OsmoSDR'";
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devices.push_back( args );
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}
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return devices;
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}
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size_t osmosdr_src_c::get_num_channels()
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{
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return 1;
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}
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osmosdr::meta_range_t osmosdr_src_c::get_sample_rates()
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{
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osmosdr::meta_range_t range;
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range += osmosdr::range_t( 1024000 ); // known to work
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range += osmosdr::range_t( 1800000 ); // known to work
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range += osmosdr::range_t( 2048000 ); // known to work
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range += osmosdr::range_t( 2400000 ); // may work
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range += osmosdr::range_t( 2600000 ); // may work
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range += osmosdr::range_t( 2800000 ); // may work
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range += osmosdr::range_t( 3000000 ); // may work
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range += osmosdr::range_t( 3200000 ); // max rate, may work
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// TODO: read from the libosmosdr as soon as the api is available
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return range;
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}
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double osmosdr_src_c::set_sample_rate(double rate)
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{
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// if (_dev) {
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// osmosdr_set_sample_rate( _dev, (uint32_t)rate );
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// }
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return get_sample_rate();
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}
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double osmosdr_src_c::get_sample_rate()
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{
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// if (_dev)
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// return (double)osmosdr_get_sample_rate( _dev );
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return 0;
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}
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osmosdr::freq_range_t osmosdr_src_c::get_freq_range( size_t chan )
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{
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osmosdr::freq_range_t range;
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range += osmosdr::range_t( 50e6, 2.2e9, 100 );
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// TODO: read from the libosmosdr as soon as the api is available
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return range;
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}
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double osmosdr_src_c::set_center_freq( double freq, size_t chan )
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{
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// if (_dev)
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// osmosdr_set_center_freq( _dev, (uint32_t)freq );
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return get_center_freq( chan );
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}
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double osmosdr_src_c::get_center_freq( size_t chan )
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{
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// if (_dev)
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// return (double)osmosdr_get_center_freq( _dev );
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return 0;
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}
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double osmosdr_src_c::set_freq_corr( double ppm, size_t chan )
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{
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// if ( _dev )
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// osmosdr_set_freq_correction( _dev, (int)ppm );
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return get_freq_corr( chan );
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}
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double osmosdr_src_c::get_freq_corr( size_t chan )
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{
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// if ( _dev )
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// return (double)osmosdr_get_freq_correction( _dev );
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return 0;
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}
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std::vector<std::string> osmosdr_src_c::get_gain_names( size_t chan )
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{
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std::vector< std::string > antennas;
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antennas += "LNA";
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return antennas;
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}
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osmosdr::gain_range_t osmosdr_src_c::get_gain_range( size_t chan )
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{
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osmosdr::gain_range_t range;
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range += osmosdr::range_t( -1.0 );
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range += osmosdr::range_t( 1.5 );
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range += osmosdr::range_t( 4.0 );
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range += osmosdr::range_t( 6.5 );
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range += osmosdr::range_t( 9.0 );
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range += osmosdr::range_t( 11.5 );
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range += osmosdr::range_t( 14.0 );
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range += osmosdr::range_t( 16.5 );
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range += osmosdr::range_t( 19.0 );
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range += osmosdr::range_t( 21.5 );
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range += osmosdr::range_t( 24.0 );
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range += osmosdr::range_t( 29.0 );
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range += osmosdr::range_t( 34.0 );
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range += osmosdr::range_t( 42.0 );
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range += osmosdr::range_t( 43.0 );
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range += osmosdr::range_t( 45.0 );
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range += osmosdr::range_t( 47.0 );
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range += osmosdr::range_t( 49.0 );
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// TODO: read from the libosmosdr as soon as the api is available
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return range;
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}
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osmosdr::gain_range_t osmosdr_src_c::get_gain_range( const std::string & name, size_t chan )
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{
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return get_gain_range( chan );
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}
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bool osmosdr_src_c::set_gain_mode( bool automatic, size_t chan )
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{
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// if (_dev) {
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// if (!osmosdr_set_tuner_gain_mode(_dev, int(!automatic))) {
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// _auto_gain = automatic;
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// }
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// }
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return get_gain_mode(chan);
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}
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bool osmosdr_src_c::get_gain_mode( size_t chan )
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{
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return _auto_gain;
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}
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static double pick_closest_gain(osmosdr::gain_range_t &gains, double required)
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{
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double result = required;
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double distance = 100;
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BOOST_FOREACH(osmosdr::range_t gain, gains)
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{
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double diff = fabs(gain.start() - required);
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if (diff < distance) {
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distance = diff;
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result = gain.start();
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}
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}
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return result;
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}
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double osmosdr_src_c::set_gain( double gain, size_t chan )
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{
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osmosdr::gain_range_t gains = osmosdr_src_c::get_gain_range( chan );
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double picked_gain = pick_closest_gain( gains, gain );
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// if (_dev)
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// osmosdr_set_tuner_gain( _dev, int(picked_gain * 10.0) );
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return get_gain( chan );
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}
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double osmosdr_src_c::set_gain( double gain, const std::string & name, size_t chan)
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{
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return set_gain( gain, chan );
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}
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double osmosdr_src_c::get_gain( size_t chan )
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{
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// if ( _dev )
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// return ((double)osmosdr_get_tuner_gain( _dev )) / 10.0;
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return 0;
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}
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double osmosdr_src_c::get_gain( const std::string & name, size_t chan )
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{
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return get_gain( chan );
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}
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std::vector< std::string > osmosdr_src_c::get_antennas( size_t chan )
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{
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std::vector< std::string > antennas;
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antennas += get_antenna( chan );
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return antennas;
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}
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std::string osmosdr_src_c::set_antenna( const std::string & antenna, size_t chan )
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{
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return get_antenna( chan );
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}
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std::string osmosdr_src_c::get_antenna( size_t chan )
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{
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return "ANT";
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}
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