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//
// Copyright 2010 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/usrp/mboard/usrp2.hpp>
#include <uhd/transport/udp.hpp>
#include "usrp2_fw_common.h"
#include <uhd/device.hpp>
#include <boost/thread.hpp>
#include <boost/lexical_cast.hpp>
#include <netinet/in.h>
using namespace uhd::usrp::mboard;
/***********************************************************************
* Discovery over the udp transport
**********************************************************************/
std::vector<uhd::device_addr_t> usrp2::discover(const device_addr_t &hint){
std::vector<uhd::device_addr_t> usrp2_addrs;
//create a udp transport to communicate
std::string ctrl_port = boost::lexical_cast<std::string>(USRP2_UDP_CTRL_PORT);
uhd::transport::udp udp_transport(hint.udp_args.addr, ctrl_port, true);
//send a hello control packet
usrp2_ctrl_data_t data;
data.id = htonl(USRP2_CTRL_ID_HELLO);
udp_transport.send(&data, sizeof(data));
//TODO start a thread to listen and sleep for timeout
return usrp2_addrs;
}
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