mayhem-firmware/firmware/application/transmitter_model.cpp

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/*
* 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 "transmitter_model.hpp"
#include "portapack_shared_memory.hpp"
#include "portapack_persistent_memory.hpp"
#include "portapack.hpp"
using namespace portapack;
rf::Frequency TransmitterModel::tuning_frequency() const {
return persistent_memory::tuned_frequency();
}
void TransmitterModel::set_tuning_frequency(rf::Frequency f) {
persistent_memory::set_tuned_frequency(f);
update_tuning_frequency();
}
bool TransmitterModel::rf_amp() const {
return rf_amp_;
}
void TransmitterModel::set_rf_amp(bool enabled) {
rf_amp_ = enabled;
update_rf_amp();
}
int32_t TransmitterModel::lna() const {
return lna_gain_db_;
}
void TransmitterModel::set_lna(int32_t v_db) {
lna_gain_db_ = v_db;
update_lna();
}
uint32_t TransmitterModel::baseband_bandwidth() const {
return baseband_bandwidth_;
}
void TransmitterModel::set_baseband_bandwidth(uint32_t v) {
baseband_bandwidth_ = v;
update_baseband_bandwidth();
}
int32_t TransmitterModel::vga() const {
return vga_gain_db_;
}
void TransmitterModel::set_vga(int32_t v_db) {
vga_gain_db_ = v_db;
update_vga();
}
uint32_t TransmitterModel::sampling_rate() const {
return baseband_configuration.sampling_rate;
}
void TransmitterModel::enable() {
enabled_ = true;
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radio::set_direction(rf::Direction::Transmit);
update_tuning_frequency();
update_rf_amp();
update_lna();
update_vga();
update_baseband_bandwidth();
update_baseband_configuration();
}
void TransmitterModel::baseband_disable() {
shared_memory.baseband_queue.push_and_wait(
BasebandConfigurationMessage {
.configuration = { },
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}
);
}
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void TransmitterModel::disable() {
enabled_ = false;
baseband_disable();
// TODO: Responsibility for enabling/disabling the radio is muddy.
// Some happens in ReceiverModel, some inside radio namespace.
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radio::disable();
}
uint32_t TransmitterModel::baseband_oversampling() const {
// TODO: Rename decimation_factor.
return baseband_configuration.decimation_factor;
}
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int32_t TransmitterModel::tuning_offset() {
return -(sampling_rate() / 4);
}
void TransmitterModel::update_tuning_frequency() {
radio::set_tuning_frequency(tuning_frequency());
}
void TransmitterModel::update_rf_amp() {
radio::set_rf_amp(rf_amp_);
}
void TransmitterModel::update_lna() {
radio::set_lna_gain(lna_gain_db_);
}
void TransmitterModel::update_baseband_bandwidth() {
radio::set_baseband_filter_bandwidth(baseband_bandwidth_);
}
void TransmitterModel::update_vga() {
radio::set_vga_gain(vga_gain_db_);
}
uint32_t TransmitterModel::modulation() const {
return baseband_configuration.mode;
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}
void TransmitterModel::set_baseband_configuration(const BasebandConfiguration config) {
baseband_configuration = config;
update_baseband_configuration();
}
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void TransmitterModel::update_baseband_configuration() {
// TODO: Move more low-level radio control stuff to M4. It'll enable tighter
// synchronization for things like wideband (sweeping) spectrum analysis, and
// protocols that need quick RX/TX turn-around.
// Disabling baseband while changing sampling rates seems like a good idea...
baseband_disable();
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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);
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}