/* -*- c++ -*- */ /* * Copyright 2011,2012 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_CONSTELLATION_RECEIVER_CB_IMPL_H #define INCLUDED_DIGITAL_CONSTELLATION_RECEIVER_CB_IMPL_H #include <gnuradio/digital/constellation_receiver_cb.h> #include <gnuradio/attributes.h> #include <gnuradio/gr_complex.h> #include <gnuradio/blocks/control_loop.h> namespace gr { namespace digital { class constellation_receiver_cb_impl : public constellation_receiver_cb, blocks::control_loop { public: constellation_receiver_cb_impl(constellation_sptr constell, float loop_bw, float fmin, float fmax); ~constellation_receiver_cb_impl(); void setup_rpc(); int general_work(int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); protected: void phase_error_tracking(float phase_error); private: constellation_sptr d_constellation; unsigned int d_current_const_point; //! Set the phase and the frequency. //! Typically used when we receive a tag with values for these. void set_phase_freq(float phase, float freq); void handle_set_constellation(pmt::pmt_t constellation_pmt); //! Set the constellation used. //! Typically used when we receive a tag with a value for this. void set_constellation(constellation_sptr constellation); //! delay line length. static const unsigned int DLLEN = 8; //! delay line plus some length for overflow protection __GR_ATTR_ALIGNED(8) gr_complex d_dl[2*DLLEN]; //! index to delay line unsigned int d_dl_idx; }; } /* namespace digital */ } /* namespace gr */ #endif /* INCLUDED_DIGITAL_CONSTELLATION_RECEIVER_CB_IMPL_H */