portapack-mayhem/firmware/application/receiver_model.cpp

189 lines
4.6 KiB
C++

/*
* 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.
*/
#include "receiver_model.hpp"
#include "portapack_shared_memory.hpp"
#include "portapack_persistent_memory.hpp"
#include "portapack.hpp"
using namespace portapack;
rf::Frequency ReceiverModel::tuning_frequency() const {
return persistent_memory::tuned_frequency();
}
void ReceiverModel::set_tuning_frequency(rf::Frequency f) {
persistent_memory::set_tuned_frequency(f);
update_tuning_frequency();
}
rf::Frequency ReceiverModel::frequency_step() const {
return frequency_step_;
}
void ReceiverModel::set_frequency_step(rf::Frequency f) {
frequency_step_ = f;
}
int32_t ReceiverModel::reference_ppm_correction() const {
return persistent_memory::correction_ppb() / 1000;
}
void ReceiverModel::set_reference_ppm_correction(int32_t v) {
persistent_memory::set_correction_ppb(v * 1000);
clock_manager.set_reference_ppb(v * 1000);
}
bool ReceiverModel::rf_amp() const {
return rf_amp_;
}
void ReceiverModel::set_rf_amp(bool enabled) {
rf_amp_ = enabled;
update_rf_amp();
}
int32_t ReceiverModel::lna() const {
return lna_gain_db_;
}
void ReceiverModel::set_lna(int32_t v_db) {
lna_gain_db_ = v_db;
update_lna();
}
uint32_t ReceiverModel::baseband_bandwidth() const {
return baseband_bandwidth_;
}
void ReceiverModel::set_baseband_bandwidth(uint32_t v) {
baseband_bandwidth_ = v;
update_baseband_bandwidth();
}
int32_t ReceiverModel::vga() const {
return vga_gain_db_;
}
void ReceiverModel::set_vga(int32_t v_db) {
vga_gain_db_ = v_db;
update_vga();
}
uint32_t ReceiverModel::sampling_rate() const {
return baseband_configuration.sampling_rate;
}
uint32_t ReceiverModel::modulation() const {
return baseband_configuration.mode;
}
volume_t ReceiverModel::headphone_volume() const {
return headphone_volume_;
}
void ReceiverModel::set_headphone_volume(volume_t v) {
headphone_volume_ = v;
update_headphone_volume();
}
uint32_t ReceiverModel::baseband_oversampling() const {
// TODO: Rename decimation_factor.
return baseband_configuration.decimation_factor;
}
void ReceiverModel::enable() {
radio::set_direction(rf::Direction::Receive);
update_tuning_frequency();
update_rf_amp();
update_lna();
update_vga();
update_baseband_bandwidth();
update_baseband_configuration();
radio::streaming_enable();
update_headphone_volume();
}
void ReceiverModel::disable() {
/* TODO: This is a dumb hack to stop baseband from working so hard. */
BasebandConfigurationMessage message {
.configuration = { },
};
shared_memory.baseband_queue.push(message);
radio::disable();
}
int32_t ReceiverModel::tuning_offset() {
if( (baseband_configuration.mode == 4) ||
(baseband_configuration.mode == 6) ) {
return 0;
} else {
return -(sampling_rate() / 4);
}
}
void ReceiverModel::update_tuning_frequency() {
radio::set_tuning_frequency(persistent_memory::tuned_frequency() + tuning_offset());
}
void ReceiverModel::update_rf_amp() {
radio::set_rf_amp(rf_amp_);
}
void ReceiverModel::update_lna() {
radio::set_lna_gain(lna_gain_db_);
}
void ReceiverModel::update_baseband_bandwidth() {
radio::set_baseband_filter_bandwidth(baseband_bandwidth_);
}
void ReceiverModel::update_vga() {
radio::set_vga_gain(vga_gain_db_);
}
void ReceiverModel::set_baseband_configuration(const BasebandConfiguration config) {
baseband_configuration = config;
update_baseband_configuration();
}
void ReceiverModel::update_baseband_configuration() {
radio::streaming_disable();
clock_manager.set_sampling_frequency(sampling_rate() * baseband_oversampling());
update_tuning_frequency();
radio::set_baseband_decimation_by(baseband_oversampling());
BasebandConfigurationMessage message { baseband_configuration };
shared_memory.baseband_queue.push(message);
radio::streaming_enable();
}
void ReceiverModel::update_headphone_volume() {
// TODO: Manipulating audio codec here, and in ui_receiver.cpp. Good to do
// both?
audio_codec.set_headphone_volume(headphone_volume_);
}