portapack-mayhem/firmware/application/rf_path.hpp

/*
 * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
 *
 * 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 __RF_PATH_H__
#define __RF_PATH_H__

#include "utility.hpp"

#include <cstdint>

namespace rf {

using Frequency = int64_t;
using FrequencyRange = range_t<Frequency>;

enum class Direction {
    /* Zero-based, used as index into table */
    Receive = 0,
    Transmit = 1,
};

namespace path {

constexpr FrequencyRange band_low{0, 2170'000'000};
constexpr FrequencyRange band_high{2740'000'000, 7250'000'000};
constexpr FrequencyRange band_mid{band_low.maximum, band_high.minimum};

enum class Band {
    /* Zero-based, used as index into frequency_bands table */
    Low = 0,
    Mid = 1,
    High = 2,
};

class Path {
   public:
    void init();

    void set_direction(const Direction direction);
    void set_band(const Band band);
    void set_rf_amp(const bool rf_amp);

   private:
    Direction direction{Direction::Receive};
    Band band{Band::Mid};
    bool rf_amp{false};

    void update();
};

}  // namespace path

constexpr FrequencyRange tuning_range{path::band_low.minimum, path::band_high.maximum};

}  // namespace rf

#endif /*__RF_PATH_H__*/