demod_2400.h

// Part of readsb, a Mode-S/ADSB/TIS message decoder.
//
// demod_2400.h: 2.4MHz Mode S demodulator prototypes.
//
// Copyright (c) 2020 Michael Wolf <michael@mictronics.de>
//
// This code is based on a detached fork of dump1090-fa.
//
// Copyright (c) 2014,2015 Oliver Jowett <oliver@mutability.co.uk>
//
// This file 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 of the License, or
// any later version.
//
// This file 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 this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef DEMOD_2400_H
#define DEMOD_2400_H

#include <stdint.h>

#define PREAMBLE_THRESHOLD_MIN 40
#define PREAMBLE_THRESHOLD_HOT 42
#define PREAMBLE_THRESHOLD_DEFAULT 58
#define PREAMBLE_THRESHOLD_PIZERO 75
#define PREAMBLE_THRESHOLD_MAX 400

struct mag_buf;

void demodulate2400(struct mag_buf *mag);
void demodulate2400AC(struct mag_buf *mag);

#endif