portapack-mayhem/firmware/baseband/proc_sstvtx.hpp
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/*
* 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_SSTV_TX_H__
#define __PROC_SSTV_TX_H__
#include "portapack_shared_memory.hpp"
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "sstv.hpp"
using namespace sstv;
class SSTVTXProcessor : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const p) override;
private:
// 1900 300ms
// 1200 10ms
// 1900 300ms
const std::pair<uint32_t, uint32_t> calibration_sequence[3] = {
{SSTV_F2D(1900), SSTV_MS2S(300)},
{SSTV_F2D(1200), SSTV_MS2S(10)},
{SSTV_F2D(1900), SSTV_MS2S(300)}};
enum state_t {
STATE_CALIBRATION = 0,
STATE_VIS,
STATE_SYNC,
STATE_PIXELS
};
state_t state{};
bool configured{false};
BasebandThread baseband_thread{3072000, this, NORMALPRIO + 20, baseband::Direction::Transmit};
uint32_t vis_code_sequence[10]{};
sstv_scanline scanline_buffer[2]{};
uint8_t buffer_flip{0}, substep{0};
uint32_t pixel_duration{};
sstv_scanline* current_scanline{};
uint8_t pixel_luma{};
uint32_t fm_delta{0};
uint32_t tone_phase{0};
uint32_t tone_delta{0};
uint32_t pixel_index{0};
uint32_t sample_count{0};
uint32_t phase{0}, sphase{0};
int32_t tone_sample{0}, delta{0};
int8_t re{}, im{};
RequestSignalMessage sig_message{RequestSignalMessage::Signal::FillRequest};
};
#endif