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/* -*- c++ -*- */
/*
* Copyright 2008 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.
*/
#ifndef INCLUDED_RX_16SC_HANDLER_H
#define INCLUDED_RX_16SC_HANDLER_H
#include <usrp2/rx_nop_handler.h>
#include <usrp2/copiers.h>
#define RX_16SC_HANDLER_DEBUG 0
class rx_16sc_handler : public usrp2::rx_nop_handler
{
std::complex<int16_t> *d_dest;
// Private constructor
rx_16sc_handler(uint64_t max_samples, uint64_t max_quantum, std::complex<int16_t> *dest)
: rx_nop_handler(max_samples, max_quantum), d_dest(dest) {}
public:
// Shared pointer to one of these
typedef boost::shared_ptr<rx_16sc_handler> sptr;
// Factory function to return a shared pointer to a new instance
static sptr make(uint64_t max_samples, uint64_t max_quantum, std::complex<int16_t> *dest)
{
if (RX_16SC_HANDLER_DEBUG)
printf("rx_16sc_handler: max_samples=%li max_quantum=%li\n", max_samples, max_quantum);
return sptr(new rx_16sc_handler(max_samples, max_quantum, dest));
}
// Invoked by USRP2 API when samples are available
bool operator()(const uint32_t *items, size_t nitems, const usrp2::rx_metadata *metadata)
{
if (RX_16SC_HANDLER_DEBUG)
printf("rx_16sc_handler: called with items=%zu ", nitems);
// Copy/reformat/endian swap USRP2 data to destination buffer
usrp2::copy_u2_16sc_to_host_16sc(nitems, items, d_dest);
d_dest += nitems;
// FIXME: do something with metadata
// Determine if there is room to be called again
bool ok = rx_nop_handler::operator()(items, nitems, metadata);
if (RX_16SC_HANDLER_DEBUG)
printf("ok to call again=%i\n", ok);
return ok;
}
~rx_16sc_handler();
};
#endif /* INCLUDED_RX_16SC_HANDLER_H */
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