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/* -*- c++ -*- */
/*
* 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 <uhd_simple_source.h>
#include <gr_io_signature.h>
#include <stdexcept>
/***********************************************************************
* Helper Functions
**********************************************************************/
static gr_io_signature_sptr make_io_sig(const std::string &type){
if(type == "32fc"){
return gr_make_io_signature(1, 1, sizeof(std::complex<float>));
}
if(type == "16sc"){
return gr_make_io_signature(1, 1, sizeof(std::complex<short>));
}
throw std::runtime_error("unknown type");
}
/***********************************************************************
* Make UHD Source
**********************************************************************/
boost::shared_ptr<uhd_simple_source> uhd_make_simple_source(
const uhd::device_addr_t &addr,
const std::string &type
){
return boost::shared_ptr<uhd_simple_source>(
new uhd_simple_source(addr, type)
);
}
/***********************************************************************
* UHD Source
**********************************************************************/
uhd_simple_source::uhd_simple_source(
const uhd::device_addr_t &addr,
const std::string &type
) : gr_sync_block(
"uhd source",
gr_make_io_signature(0, 0, 0),
make_io_sig(type)
){
_type = type;
_dev = uhd::device::make(addr);
}
uhd_simple_source::~uhd_simple_source(void){
/* NOP */
}
/***********************************************************************
* Work
**********************************************************************/
int uhd_simple_source::work(
int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items
){
uhd::metadata_t metadata;
return _dev->recv(boost::asio::buffer(output_items[0], noutput_items), metadata, _type);
}
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