portapack-mayhem/firmware/application/receiver_model.hpp
Jared Boone df593c2f0f Run codec at 1 x baseband sample rate. Do not use CPLD decimator.
Codec performance appears to be unaffected by <8MHz sample rate. Saves a bit of power, eliminates dependency on CPLD decimation feature.
2015-12-29 10:55:55 -08:00

113 lines
2.7 KiB
C++

/*
* Copyright (C) 2015 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 __RECEIVER_MODEL_H__
#define __RECEIVER_MODEL_H__
#include <cstdint>
#include <cstddef>
#include "clock_manager.hpp"
#include "message.hpp"
#include "rf_path.hpp"
#include "max2837.hpp"
#include "volume.hpp"
class ReceiverModel {
public:
enum class Mode : int32_t {
AMAudio = 0,
NarrowbandFMAudio = 1,
WidebandFMAudio = 2,
AIS = 3,
SpectrumAnalysis = 4,
TPMS = 5,
ERT = 6,
};
constexpr ReceiverModel(
ClockManager& clock_manager
) : clock_manager(clock_manager)
{
}
rf::Frequency tuning_frequency() const;
void set_tuning_frequency(rf::Frequency f);
rf::Frequency frequency_step() const;
void set_frequency_step(rf::Frequency f);
int32_t reference_ppm_correction() const;
void set_reference_ppm_correction(int32_t v);
bool rf_amp() const;
void set_rf_amp(bool enabled);
int32_t lna() const;
void set_lna(int32_t v_db);
uint32_t baseband_bandwidth() const;
void set_baseband_bandwidth(uint32_t v);
int32_t vga() const;
void set_vga(int32_t v_db);
uint32_t sampling_rate() const;
uint32_t modulation() const;
volume_t headphone_volume() const;
void set_headphone_volume(volume_t v);
uint32_t baseband_oversampling() const;
void enable();
void disable();
void set_baseband_configuration(const BasebandConfiguration config);
private:
rf::Frequency frequency_step_ { 25000 };
bool rf_amp_ { false };
int32_t lna_gain_db_ { 32 };
uint32_t baseband_bandwidth_ { max2837::filter::bandwidth_minimum };
int32_t vga_gain_db_ { 32 };
BasebandConfiguration baseband_configuration {
.mode = 1, /* TODO: Enum! */
.sampling_rate = 3072000,
.decimation_factor = 1,
};
volume_t headphone_volume_ { -43.0_dB };
ClockManager& clock_manager;
int32_t tuning_offset();
void update_tuning_frequency();
void update_rf_amp();
void update_lna();
void update_baseband_bandwidth();
void update_vga();
void update_baseband_configuration();
void update_headphone_volume();
};
#endif/*__RECEIVER_MODEL_H__*/