uhd

//

// Copyright 2011 Ettus Research LLC

//

// This program 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 of the License, or

// (at your option) any later version.

//

// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

//

#include <uhd/utils/thread_priority.hpp>

#include <uhd/utils/safe_main.hpp>

#include <uhd/usrp/multi_usrp.hpp>

#include <boost/program_options.hpp>

#include <boost/format.hpp>

#include <boost/thread.hpp>

#include <iostream>

#include <fstream>

#include <complex>

namespace po = boost::program_options;

template<typename samp_type> void send_from_file(

    uhd::usrp::multi_usrp::sptr usrp,

    const std::string &cpu_format,

    const std::string &file,

    size_t samps_per_buff

){

    //create a transmit streamer

    uhd::stream_args_t stream_args(cpu_format);

    uhd::tx_streamer::sptr tx_stream = usrp->get_tx_stream(stream_args);

    uhd::tx_metadata_t md;

    md.start_of_burst = false;

    md.end_of_burst = false;

    std::vector<samp_type> buff(samps_per_buff);

    std::ifstream infile(file.c_str(), std::ifstream::binary);

    //loop until the entire file has been read

    while(not md.end_of_burst){

        infile.read((char*)&buff.front(), buff.size()*sizeof(samp_type));

        size_t num_tx_samps = infile.gcount()/sizeof(samp_type);

        md.end_of_burst = infile.eof();

        tx_stream->send(&buff.front(), num_tx_samps, md);

    }

    infile.close();

}

int UHD_SAFE_MAIN(int argc, char *argv[]){

    uhd::set_thread_priority_safe();

    //variables to be set by po

    std::string args, file, type, ant, subdev, ref;

    size_t spb;

    double rate, freq, gain, bw;

    //setup the program options

    po::options_description desc("Allowed options");

    desc.add_options()

        ("help", "help message")

        ("args", po::value<std::string>(&args)->default_value(""), "multi uhd device address args")

        ("file", po::value<std::string>(&file)->default_value("usrp_samples.dat"), "name of the file to read binary samples from")

        ("type", po::value<std::string>(&type)->default_value("short"), "sample type: double, float, or short")

        ("spb", po::value<size_t>(&spb)->default_value(10000), "samples per buffer")

        ("rate", po::value<double>(&rate), "rate of outgoing samples")

        ("freq", po::value<double>(&freq), "RF center frequency in Hz")

        ("gain", po::value<double>(&gain), "gain for the RF chain")

        ("ant", po::value<std::string>(&ant), "daughterboard antenna selection")

        ("subdev", po::value<std::string>(&subdev), "daughterboard subdevice specification")

        ("bw", po::value<double>(&bw), "daughterboard IF filter bandwidth in Hz")

        ("ref", po::value<std::string>(&ref)->default_value("INTERNAL"), "waveform type (INTERNAL, EXTERNAL, MIMO)")

    ;

    po::variables_map vm;

    po::store(po::parse_command_line(argc, argv, desc), vm);

    po::notify(vm);

    //print the help message

    if (vm.count("help")){

        std::cout << boost::format("UHD TX samples from file %s") % desc << std::endl;

        return ~0;

    }

    //create a usrp device

    std::cout << std::endl;

    std::cout << boost::format("Creating the usrp device with: %s...") % args << std::endl;

    uhd::usrp::multi_usrp::sptr usrp = uhd::usrp::multi_usrp::make(args);

    //Lock mboard clocks

    if (ref == "MIMO") {

        uhd::clock_config_t clock_config;

        clock_config.ref_source = uhd::clock_config_t::REF_MIMO;

        clock_config.pps_source = uhd::clock_config_t::PPS_MIMO;

        usrp->set_clock_config(clock_config, 0);

    }

    else if (ref == "EXTERNAL") {

        usrp->set_clock_config(uhd::clock_config_t::external(), 0);

    }

    else if (ref == "INTERNAL") {

        usrp->set_clock_config(uhd::clock_config_t::internal(), 0);

    }

    //always select the subdevice first, the channel mapping affects the other settings

    if (vm.count("subdev")) usrp->set_tx_subdev_spec(subdev);

    std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl;

    //set the sample rate

    if (not vm.count("rate")){

        std::cerr << "Please specify the sample rate with --rate" << std::endl;

        return ~0;

    }

    std::cout << boost::format("Setting TX Rate: %f Msps...") % (rate/1e6) << std::endl;

    usrp->set_tx_rate(rate);

    std::cout << boost::format("Actual TX Rate: %f Msps...") % (usrp->get_tx_rate()/1e6) << std::endl << std::endl;

    //set the center frequency

    if (not vm.count("freq")){

        std::cerr << "Please specify the center frequency with --freq" << std::endl;

        return ~0;

    }

    std::cout << boost::format("Setting TX Freq: %f MHz...") % (freq/1e6) << std::endl;

    usrp->set_tx_freq(freq);

    std::cout << boost::format("Actual TX Freq: %f MHz...") % (usrp->get_tx_freq()/1e6) << std::endl << std::endl;

    //set the rf gain

    if (vm.count("gain")){

        std::cout << boost::format("Setting TX Gain: %f dB...") % gain << std::endl;

        usrp->set_tx_gain(gain);

        std::cout << boost::format("Actual TX Gain: %f dB...") % usrp->get_tx_gain() << std::endl << std::endl;

    }

    //set the IF filter bandwidth

    if (vm.count("bw")){

        std::cout << boost::format("Setting TX Bandwidth: %f MHz...") % bw << std::endl;

        usrp->set_tx_bandwidth(bw);

        std::cout << boost::format("Actual TX Bandwidth: %f MHz...") % usrp->get_tx_bandwidth() << std::endl << std::endl;

    }

    //set the antenna

    if (vm.count("ant")) usrp->set_tx_antenna(ant);

    boost::this_thread::sleep(boost::posix_time::seconds(1)); //allow for some setup time

    //Check Ref and LO Lock detect

    std::vector<std::string> sensor_names;

    sensor_names = usrp->get_tx_sensor_names(0);

    if (std::find(sensor_names.begin(), sensor_names.end(), "lo_locked") != sensor_names.end()) {

        uhd::sensor_value_t lo_locked = usrp->get_tx_sensor("lo_locked",0);

        std::cout << boost::format("Checking TX: %s ...") % lo_locked.to_pp_string() << std::endl;

        UHD_ASSERT_THROW(lo_locked.to_bool());

    }

    sensor_names = usrp->get_mboard_sensor_names(0);

    if ((ref == "MIMO") and (std::find(sensor_names.begin(), sensor_names.end(), "mimo_locked") != sensor_names.end())) {

        uhd::sensor_value_t mimo_locked = usrp->get_mboard_sensor("mimo_locked",0);

        std::cout << boost::format("Checking TX: %s ...") % mimo_locked.to_pp_string() << std::endl;

        UHD_ASSERT_THROW(mimo_locked.to_bool());

    }

    if ((ref == "EXTERNAL") and (std::find(sensor_names.begin(), sensor_names.end(), "ref_locked") != sensor_names.end())) {

        uhd::sensor_value_t ref_locked = usrp->get_mboard_sensor("ref_locked",0);

        std::cout << boost::format("Checking TX: %s ...") % ref_locked.to_pp_string() << std::endl;

        UHD_ASSERT_THROW(ref_locked.to_bool());

    }

    //send from file

    if (type == "double") send_from_file<std::complex<double> >(usrp, "fc64", file, spb);

    else if (type == "float") send_from_file<std::complex<float> >(usrp, "fc32", file, spb);

    else if (type == "short") send_from_file<std::complex<short> >(usrp, "sc16", file, spb);

    else throw std::runtime_error("Unknown type " + type);

    //finished

    std::cout << std::endl << "Done!" << std::endl << std::endl;

    return 0;

}