Add LimeSDR antenna selection support

conf/gnss-sdr_GPS_L1_LimeSDR.conf

@@ -0,0 +1,124 @@
+[GNSS-SDR]
+
+;######### GLOBAL OPTIONS ##################
+GNSS-SDR.internal_fs_hz=2000000
+
+;######### SIGNAL_SOURCE CONFIG ############
+SignalSource.implementation=Osmosdr_Signal_Source
+SignalSource.item_type=gr_complex
+SignalSource.sampling_frequency=2000000
+;# LimeSDR RX1 antennas: NONE,LNAH,LNAL,LNAW
+SignalSource.antenna=LNAW
+SignalSource.freq=1575420000
+SignalSource.gain=40
+SignalSource.rf_gain=40
+SignalSource.if_gain=30
+SignalSource.AGC_enabled=false
+SignalSource.samples=0
+SignalSource.repeat=false
+;# Next line enables the LimeSDR
+SignalSource.osmosdr_args=driver=lime,soapy=0
+SignalSource.enable_throttle_control=false
+SignalSource.dump=false
+SignalSource.dump_filename=./signal_source.dat
+
+;######### SIGNAL_CONDITIONER CONFIG ############
+SignalConditioner.implementation=Signal_Conditioner
+
+;######### DATA_TYPE_ADAPTER CONFIG ############
+DataTypeAdapter.implementation=Pass_Through
+
+;######### INPUT_FILTER CONFIG ############
+InputFilter.implementation=Freq_Xlating_Fir_Filter
+InputFilter.decimation_factor=1
+InputFilter.input_item_type=gr_complex
+InputFilter.output_item_type=gr_complex
+InputFilter.taps_item_type=float
+InputFilter.number_of_taps=5
+InputFilter.number_of_bands=2
+InputFilter.band1_begin=0.0
+InputFilter.band1_end=0.85
+InputFilter.band2_begin=0.9
+InputFilter.band2_end=1.0
+InputFilter.ampl1_begin=1.0
+InputFilter.ampl1_end=1.0
+InputFilter.ampl2_begin=0.0
+InputFilter.ampl2_end=0.0
+InputFilter.band1_error=1.0
+InputFilter.band2_error=1.0
+InputFilter.filter_type=bandpass
+InputFilter.grid_density=16
+InputFilter.dump=false
+InputFilter.dump_filename=../data/input_filter.dat
+
+;######### RESAMPLER CONFIG ############
+Resampler.implementation=Pass_Through
+
+;######### CHANNELS GLOBAL CONFIG ############
+Channels_1C.count=8
+Channels.in_acquisition=1
+Channel.signal=1C
+
+;######### ACQUISITION GLOBAL CONFIG ############
+Acquisition_1C.implementation=GPS_L1_CA_PCPS_Acquisition_Fine_Doppler
+Acquisition_1C.item_type=gr_complex
+Acquisition_1C.if=0
+Acquisition_1C.sampled_ms=1
+Acquisition_1C.threshold=0.015
+Acquisition_1C.doppler_max=10000
+Acquisition_1C.doppler_min=-10000
+Acquisition_1C.doppler_step=500
+Acquisition_1C.max_dwells=15
+Acquisition_1C.dump=false
+Acquisition_1C.dump_filename=./acq_dump.dat
+
+;######### TRACKING GLOBAL CONFIG ############
+Tracking_1C.implementation=GPS_L1_CA_DLL_PLL_Tracking
+Tracking_1C.item_type=gr_complex
+Tracking_1C.if=0
+Tracking_1C.pll_bw_hz=40.0;
+Tracking_1C.dll_bw_hz=2.0;
+Tracking_1C.order=3;
+Tracking_1C.early_late_space_chips=0.5;
+Tracking_1C.dump=false
+Tracking_1C.dump_filename=./tracking_ch_
+
+;######### TELEMETRY DECODER GPS CONFIG ############
+TelemetryDecoder_1C.implementation=GPS_L1_CA_Telemetry_Decoder
+TelemetryDecoder_1C.dump=false
+TelemetryDecoder_1C.decimation_factor=1;
+
+;######### OBSERVABLES CONFIG ############
+Observables.implementation=GPS_L1_CA_Observables
+Observables.dump=false
+Observables.dump_filename=./observables.dat
+
+;######### PVT CONFIG ############
+PVT.implementation=GPS_L1_CA_PVT
+PVT.flag_averaging=true
+PVT.averaging_depth=5
+PVT.output_rate_ms=100
+PVT.display_rate_ms=500
+PVT.flag_nmea_tty_port=false;
+PVT.nmea_dump_devname=/dev/pts/4
+PVT.nmea_dump_filename=./gnss_sdr_pvt.nmea;
+PVT.flag_rtcm_server=false
+PVT.flag_rtcm_tty_port=false
+PVT.rtcm_dump_devname=/dev/pts/1
+PVT.dump=false
+PVT.dump_filename=./PVT
+
+;######### PVT CONFIG if using the next branch ####
+;PVT.implementation=RTKLIB_PVT
+;PVT.positioning_mode=Single
+;PVT.output_rate_ms=100
+;PVT.display_rate_ms=500
+;PVT.iono_model=Broadcast
+;PVT.trop_model=Saastamoinen
+;PVT.flag_rtcm_server=true
+;PVT.flag_rtcm_tty_port=false
+;PVT.rtcm_dump_devname=/dev/pts/1
+;PVT.rtcm_tcp_port=2101
+;PVT.rtcm_MT1019_rate_ms=5000
+;PVT.rtcm_MT1077_rate_ms=1000
+;PVT.rinex_version=2

src/algorithms/signal_source/adapters/osmosdr_signal_source.cc

@@ -66,6 +66,7 @@ OsmosdrSignalSource::OsmosdrSignalSource(ConfigurationInterface* configuration,
     sample_rate_ = configuration->property(role + ".sampling_frequency", 2.0e6);
     item_type_ = configuration->property(role + ".item_type", default_item_type);
     osmosdr_args_ = configuration->property(role + ".osmosdr_args", std::string( ));
+    antenna_ = configuration->property(role + ".antenna", empty);
 
     if (item_type_.compare("short") == 0)
         {
@@ -77,6 +78,14 @@ OsmosdrSignalSource::OsmosdrSignalSource(ConfigurationInterface* configuration,
             // 1. Make the driver instance
             OsmosdrSignalSource::driver_instance();
 
+			// For LimeSDR: Set RX antenna 
+			if (!antenna_.empty())
+				{
+					osmosdr_source_->set_antenna(antenna_, 0);
+					std::cout << boost::format("Set RX Antenna : %s") % (osmosdr_source_->get_antenna(0)) << std::endl ;
+					LOG(INFO) << boost::format("Set RX Antenna : %s") % (osmosdr_source_->get_antenna(0));
+				}
+
             // 2 set sampling rate
             osmosdr_source_->set_sample_rate(sample_rate_);
             std::cout << boost::format("Actual RX Rate: %f [SPS]...") % (osmosdr_source_->get_sample_rate()) << std::endl ;

src/algorithms/signal_source/adapters/osmosdr_signal_source.h

@@ -104,6 +104,8 @@ private:
 
     osmosdr::source::sptr osmosdr_source_;
     std::string osmosdr_args_;
+    
+    std::string antenna_;
 
     boost::shared_ptr<gr::block> valve_;
     gr::blocks::file_sink::sptr file_sink_;