portapack-mayhem/firmware/baseband/proc_afsk.hpp
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/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 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_AFSK_H__
#define __PROC_AFSK_H__
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#define AFSK_SAMPLERATE 1536000
#define AFSK_DELTA_COEF ((1ULL << 32) / AFSK_SAMPLERATE)
class AFSKProcessor : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const msg) override;
private:
bool configured = false;
BasebandThread baseband_thread{AFSK_SAMPLERATE, this, NORMALPRIO + 20, baseband::Direction::Transmit};
uint32_t afsk_samples_per_bit{0};
uint32_t afsk_phase_inc_mark{0};
uint32_t afsk_phase_inc_space{0};
uint8_t afsk_repeat{0};
uint32_t fm_delta{0};
uint8_t symbol_count{0};
uint8_t repeat_counter{0};
uint8_t bit_pos{0};
uint16_t* word_ptr{};
uint16_t cur_word{0};
uint8_t cur_bit{0};
uint32_t sample_count{0};
uint32_t tone_phase{0}, phase{0}, sphase{0};
int32_t tone_sample{0}, delta{0};
int8_t re{0}, im{0};
TXProgressMessage txprogress_message{};
};
#endif