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/* -*- c++ -*- */
/*
* Copyright 2009 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_NOAA_HRPT_DEFRAMER_H
#define INCLUDED_NOAA_HRPT_DEFRAMER_H
#define HRPT_SYNC_WORDS 6
#define HRPT_MINOR_FRAME_WORDS 11090
#define HRPT_BITS_PER_WORD 10
#include <gr_block.h>
class noaa_hrpt_deframer;
typedef boost::shared_ptr<noaa_hrpt_deframer> noaa_hrpt_deframer_sptr;
noaa_hrpt_deframer_sptr
noaa_make_hrpt_deframer();
class noaa_hrpt_deframer : public gr_block
{
friend noaa_hrpt_deframer_sptr noaa_make_hrpt_deframer();
noaa_hrpt_deframer();
unsigned int d_state;
unsigned int d_bit_count;
unsigned int d_word_count;
unsigned long long d_shifter; // 60 bit sync word
unsigned short d_word; // 10 bit HRPT word
void enter_idle();
void enter_synced();
public:
int general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif /* INCLUDED_NOAA_HRPT_DEFRAMER_H */
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