portapack-mayhem/firmware/baseband/proc_tones.hpp

/*
 * Copyright (C) 2015 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_TONES_H__
#define __PROC_TONES_H__

#include "portapack_shared_memory.hpp"
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "audio_output.hpp"

class TonesProcessor : public BasebandProcessor {
public:
	void execute(const buffer_c8_t& buffer) override;
	
	void on_message(const Message* const p) override;

private:
	bool configured = false;
	
	BasebandThread baseband_thread { 1536000, this, NORMALPRIO + 20, baseband::Direction::Transmit };
	
	std::array<int16_t, 32> audio;	// 2048/64
	const buffer_s16_t audio_buffer {
		(int16_t*)audio.data(),
		sizeof(audio) / sizeof(int16_t)
	};

	uint32_t tone_deltas[32];
	uint32_t tone_durations[32];
	
	bool audio_out;
	bool dual_tone;
	uint32_t fm_delta;
	uint32_t tone_a_phase, tone_b_phase;
	uint32_t tone_a_delta, tone_b_delta;
    uint8_t digit_pos;
    uint8_t digit;
    uint32_t silence_count, sample_count;
    uint32_t message_length;
	uint32_t phase, sphase;
	int32_t tone_sample, delta;
	int8_t re, im;
	uint8_t as, ai;
	
	TXDoneMessage txdone_message;
	AudioOutput audio_output;
};

#endif