/* * Copyright 2010 Free Software Foundation, Inc. * * This file is part of GNU Radio * * 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 #include #include #include #include /*********************************************************************** * UHD Multi USRP Source **********************************************************************/ uhd_multi_usrp_source::uhd_multi_usrp_source(gr_io_signature_sptr sig) :gr_sync_block("uhd multi_usrp source", gr_make_io_signature(0, 0, 0), sig){ /* NOP */ } /*********************************************************************** * UHD Multi USRP Source Impl **********************************************************************/ class uhd_multi_usrp_source_impl : public uhd_multi_usrp_source{ public: uhd_multi_usrp_source_impl( const std::string &device_addr, const uhd::io_type_t &io_type, size_t num_channels ): uhd_multi_usrp_source(gr_make_io_signature( num_channels, num_channels, io_type.size )), _type(io_type) { _dev = uhd::usrp::multi_usrp::make(device_addr); } void set_subdev_spec(const std::string &spec, size_t mboard){ return _dev->set_rx_subdev_spec(spec, mboard); } void set_samp_rate(double rate){ _dev->set_rx_rate(rate); } double get_samp_rate(void){ return _dev->get_rx_rate(); } uhd::tune_result_t set_center_freq( const uhd::tune_request_t tune_request, size_t chan ){ return _dev->set_rx_freq(tune_request, chan); } uhd::freq_range_t get_freq_range(size_t chan){ return _dev->get_rx_freq_range(chan); } void set_gain(float gain, size_t chan){ return _dev->set_rx_gain(gain, chan); } float get_gain(size_t chan){ return _dev->get_rx_gain(chan); } uhd::gain_range_t get_gain_range(size_t chan){ return _dev->get_rx_gain_range(chan); } void set_antenna(const std::string &ant, size_t chan){ return _dev->set_rx_antenna(ant, chan); } std::string get_antenna(size_t chan){ return _dev->get_rx_antenna(chan); } std::vector get_antennas(size_t chan){ return _dev->get_rx_antennas(chan); } void set_bandwidth(double bandwidth, size_t chan){ return _dev->set_rx_bandwidth(bandwidth, chan); } void set_clock_config(const uhd::clock_config_t &clock_config, size_t mboard){ return _dev->set_clock_config(clock_config, mboard); } uhd::time_spec_t get_time_now(void){ return _dev->get_time_now(); } void set_time_next_pps(const uhd::time_spec_t &time_spec){ return _dev->set_time_next_pps(time_spec); } void set_time_unknown_pps(const uhd::time_spec_t &time_spec){ return _dev->set_time_unknown_pps(time_spec); } uhd::usrp::multi_usrp::sptr get_device(void){ return _dev; } /*********************************************************************** * Work **********************************************************************/ int work( int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items ){ uhd::rx_metadata_t metadata; //not passed out of this block size_t num_samps = _dev->get_device()->recv( output_items, noutput_items, metadata, _type, uhd::device::RECV_MODE_FULL_BUFF, 1.0 ); switch(metadata.error_code){ case uhd::rx_metadata_t::ERROR_CODE_NONE: return num_samps; case uhd::rx_metadata_t::ERROR_CODE_OVERFLOW: //ignore overflows and try work again return work(noutput_items, input_items, output_items); default: std::cout << boost::format( "UHD source block got error code 0x%x" ) % metadata.error_code << std::endl; return num_samps; } } bool start(void){ //setup a stream command that starts streaming slightly in the future static const double reasonable_delay = 0.1; //order of magnitude over RTT uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS); stream_cmd.stream_now = false; stream_cmd.time_spec = get_time_now() + uhd::time_spec_t(reasonable_delay); _dev->issue_stream_cmd(stream_cmd); return true; } bool stop(void){ _dev->issue_stream_cmd(uhd::stream_cmd_t::STREAM_MODE_STOP_CONTINUOUS); return true; } private: uhd::usrp::multi_usrp::sptr _dev; const uhd::io_type_t _type; }; /*********************************************************************** * Make UHD Multi USRP Source **********************************************************************/ boost::shared_ptr uhd_make_multi_usrp_source( const std::string &device_addr, const uhd::io_type_t::tid_t &io_type, size_t num_channels ){ return boost::shared_ptr( new uhd_multi_usrp_source_impl(device_addr, io_type, num_channels) ); }