portapack-mayhem/firmware/baseband/proc_adsbrx.hpp
jLynx 033c4e9a5b
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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek
*
* This file is part of PortaPack.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __PROC_ADSBRX_H__
#define __PROC_ADSBRX_H__
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "rssi_thread.hpp"
#include "adsb_frame.hpp"
using namespace adsb;
#define ADSB_PREAMBLE_LENGTH 16
class ADSBRXProcessor : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const message) override;
private:
static constexpr size_t baseband_fs = 2000000;
BasebandThread baseband_thread{baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive};
RSSIThread rssi_thread{NORMALPRIO + 10};
ADSBFrame frame{};
bool configured{false};
uint32_t prev_mag{0};
size_t bit_count{0}, sample_count{0};
size_t msgLen{112};
uint32_t shifter[ADSB_PREAMBLE_LENGTH + 1];
bool decoding{};
bool preamble{}, active{};
uint16_t bit_pos{0};
uint8_t cur_bit{0};
uint32_t sample{0};
int32_t re{}, im{};
int32_t amp{0};
};
#endif