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/* -*- c++ -*- */
/*
* Copyright 2014 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_DIGITAL_MSK_TIMING_RECOVERY_CC_IMPL_H
#define INCLUDED_DIGITAL_MSK_TIMING_RECOVERY_CC_IMPL_H
#include <gnuradio/digital/msk_timing_recovery_cc.h>
#include <gnuradio/filter/mmse_fir_interpolator_cc.h>
#include <boost/circular_buffer.hpp>
#include <gnuradio/filter/fir_filter_with_buffer.h>
namespace gr {
namespace digital {
class msk_timing_recovery_cc_impl : public msk_timing_recovery_cc
{
private:
float d_sps;
float d_gain;
float d_limit;
filter::mmse_fir_interpolator_cc *d_interp;
gr_complex d_dly_conj_1, d_dly_conj_2, d_dly_diff_1;
float d_mu, d_omega, d_gain_omega;
int d_div;
int d_osps;
public:
msk_timing_recovery_cc_impl(float sps, float gain, float limit, int osps);
~msk_timing_recovery_cc_impl();
// Where all the action really happens
void forecast (int noutput_items, gr_vector_int &ninput_items_required);
int general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
void set_gain(float gain);
float get_gain(void);
void set_limit(float limit);
float get_limit(void);
void set_sps(float sps);
float get_sps(void);
};
} // namespace digital
} // namespace gr
#endif /* INCLUDED_DIGITAL_MSK_TIMING_RECOVERY_CC_IMPL_H */
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