mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-14 12:08:40 +00:00
328 lines
8.8 KiB
C++
328 lines
8.8 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "receiver_model.hpp"
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#include "baseband_api.hpp"
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#include "portapack_persistent_memory.hpp"
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#include "hackrf_gpio.hpp"
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#include "portapack.hpp"
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using namespace hackrf::one;
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using namespace portapack;
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#include "radio.hpp"
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#include "audio.hpp"
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#include "dsp_fir_taps.hpp"
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#include "dsp_iir.hpp"
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#include "dsp_iir_config.hpp"
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namespace {
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static constexpr std::array<baseband::AMConfig, 5> am_configs{{
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// we config here all the non COMMON parameters to each AM modulation type in RX.
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{taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
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{taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
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{taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB}, // SSB USB BW 2K8 (+ 2K8)
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{taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB}, // SSB LSB BW 2K8 (- 2K8)
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{taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB}, // SSB USB BW 0K7 (+ 0K7) used to get audio tone from CW Morse, assuming tx shifted +700hz aprox
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}};
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static constexpr std::array<baseband::NBFMConfig, 3> nbfm_configs{{
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{taps_4k25_decim_0, taps_4k25_decim_1, taps_4k25_channel, 2500},
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{taps_11k0_decim_0, taps_11k0_decim_1, taps_11k0_channel, 2500},
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{taps_16k0_decim_0, taps_16k0_decim_1, taps_16k0_channel, 5000},
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}};
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static constexpr std::array<baseband::WFMConfig, 3> wfm_configs{{
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{taps_200k_wfm_decim_0, taps_200k_wfm_decim_1},
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{taps_180k_wfm_decim_0, taps_180k_wfm_decim_1},
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{taps_40k_wfm_decim_0, taps_40k_wfm_decim_1},
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}};
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} /* namespace */
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rf::Frequency ReceiverModel::tuning_frequency() const {
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return persistent_memory::tuned_frequency();
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}
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void ReceiverModel::set_tuning_frequency(rf::Frequency f) {
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persistent_memory::set_tuned_frequency(f);
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update_tuning_frequency();
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}
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rf::Frequency ReceiverModel::frequency_step() const {
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return frequency_step_;
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}
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void ReceiverModel::set_frequency_step(rf::Frequency f) {
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frequency_step_ = f;
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}
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void ReceiverModel::set_antenna_bias() {
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update_antenna_bias();
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}
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bool ReceiverModel::rf_amp() const {
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return rf_amp_;
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}
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void ReceiverModel::set_rf_amp(bool enabled) {
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rf_amp_ = enabled;
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update_rf_amp();
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}
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int32_t ReceiverModel::lna() const {
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return lna_gain_db_;
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}
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void ReceiverModel::set_lna(int32_t v_db) {
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lna_gain_db_ = v_db;
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update_lna();
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}
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uint32_t ReceiverModel::baseband_bandwidth() const {
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return baseband_bandwidth_;
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}
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void ReceiverModel::set_baseband_bandwidth(uint32_t v) {
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baseband_bandwidth_ = v;
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update_baseband_bandwidth();
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}
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int32_t ReceiverModel::vga() const {
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return vga_gain_db_;
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}
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void ReceiverModel::set_vga(int32_t v_db) {
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vga_gain_db_ = v_db;
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update_vga();
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}
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int32_t ReceiverModel::tx_gain() const {
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return tx_gain_db_;
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}
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void ReceiverModel::set_tx_gain(int32_t v_db) {
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tx_gain_db_ = v_db;
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update_tx_gain();
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}
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uint32_t ReceiverModel::sampling_rate() const {
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return sampling_rate_;
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}
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void ReceiverModel::set_sampling_rate(uint32_t v) {
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sampling_rate_ = v;
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update_sampling_rate();
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}
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ReceiverModel::Mode ReceiverModel::modulation() const {
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return mode_;
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}
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void ReceiverModel::set_modulation(const Mode v) {
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mode_ = v;
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update_modulation();
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}
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volume_t ReceiverModel::headphone_volume() const {
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return headphone_volume_;
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}
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void ReceiverModel::set_headphone_volume(volume_t v) {
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headphone_volume_ = v;
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update_headphone_volume();
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}
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uint8_t ReceiverModel::squelch_level() const {
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return squelch_level_;
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}
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void ReceiverModel::set_squelch_level(uint8_t v) {
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squelch_level_ = v;
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update_modulation();
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}
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void ReceiverModel::enable() {
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enabled_ = true;
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radio::set_direction(rf::Direction::Receive);
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update_tuning_frequency();
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update_antenna_bias();
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update_rf_amp();
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update_lna();
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update_vga();
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update_tx_gain();
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update_baseband_bandwidth();
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update_sampling_rate();
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update_modulation();
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// TODO: would challenge if this should belong to the
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// receiver_model namespace:
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update_headphone_volume();
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led_rx.on();
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}
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void ReceiverModel::disable() {
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enabled_ = false;
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radio::set_antenna_bias(false);
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// TODO: Responsibility for enabling/disabling the radio is muddy.
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// Some happens in ReceiverModel, some inside radio namespace.
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radio::disable();
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// TODO: we are doing this repeatedly in different levels of the
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// call stack. Keeping it for now, but there seem to be too many
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// redundant calls:
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led_rx.off();
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}
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int32_t ReceiverModel::tuning_offset() {
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if ((modulation() == Mode::SpectrumAnalysis)) {
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return 0;
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} else {
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return -(sampling_rate() / 4);
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}
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}
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void ReceiverModel::update_tuning_frequency() {
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radio::set_tuning_frequency(persistent_memory::tuned_frequency() + tuning_offset());
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}
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void ReceiverModel::update_antenna_bias() {
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if (enabled_)
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radio::set_antenna_bias(portapack::get_antenna_bias());
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}
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void ReceiverModel::update_rf_amp() {
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radio::set_rf_amp(rf_amp_);
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}
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void ReceiverModel::update_lna() {
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radio::set_lna_gain(lna_gain_db_);
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}
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void ReceiverModel::update_baseband_bandwidth() {
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radio::set_baseband_filter_bandwidth(baseband_bandwidth_);
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}
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void ReceiverModel::update_vga() {
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radio::set_vga_gain(vga_gain_db_);
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}
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void ReceiverModel::update_tx_gain() {
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radio::set_tx_gain(tx_gain_db_);
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}
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void ReceiverModel::set_am_configuration(const size_t n) {
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if (n < am_configs.size()) {
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am_config_index = n;
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update_modulation();
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}
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}
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void ReceiverModel::set_nbfm_configuration(const size_t n) {
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if (n < nbfm_configs.size()) {
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nbfm_config_index = n;
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update_modulation();
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}
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}
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void ReceiverModel::set_wfm_configuration(const size_t n) {
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if (n < wfm_configs.size()) {
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wfm_config_index = n;
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update_modulation();
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}
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}
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void ReceiverModel::update_sampling_rate() {
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// TODO: Move more low-level radio control stuff to M4. It'll enable tighter
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// synchronization for things like wideband (sweeping) spectrum analysis, and
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// protocols that need quick RX/TX turn-around.
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// Disabling baseband while changing sampling rates seems like a good idea...
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radio::set_baseband_rate(sampling_rate());
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update_tuning_frequency();
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}
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void ReceiverModel::update_headphone_volume() {
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// TODO: Manipulating audio codec here, and in ui_receiver.cpp. Good to do
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// both?
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audio::headphone::set_volume(headphone_volume_);
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}
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void ReceiverModel::update_modulation() {
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switch (modulation()) {
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default:
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case Mode::AMAudio:
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update_am_configuration();
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break;
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case Mode::NarrowbandFMAudio:
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update_nbfm_configuration();
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break;
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case Mode::WidebandFMAudio:
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update_wfm_configuration();
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break;
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case Mode::SpectrumAnalysis:
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case Mode::Capture:
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break;
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}
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}
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size_t ReceiverModel::am_configuration() const {
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return am_config_index;
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}
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void ReceiverModel::update_am_configuration() {
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am_configs[am_config_index].apply();
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}
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size_t ReceiverModel::nbfm_configuration() const {
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return nbfm_config_index;
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}
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void ReceiverModel::update_nbfm_configuration() {
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nbfm_configs[nbfm_config_index].apply(squelch_level_);
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}
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size_t ReceiverModel::wfm_configuration() const {
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return wfm_config_index;
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}
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void ReceiverModel::update_wfm_configuration() {
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wfm_configs[wfm_config_index].apply();
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}
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void ReceiverModel::set_configuration_without_init(const Mode new_mode, const rf::Frequency new_frequency_step, const size_t new_am_config_index, const size_t new_nbfm_config_index, const size_t new_wfm_config_index, uint8_t new_squelch_level) {
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mode_ = new_mode;
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frequency_step_ = new_frequency_step;
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am_config_index = new_am_config_index;
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nbfm_config_index = new_nbfm_config_index;
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wfm_config_index = new_wfm_config_index;
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squelch_level_ = new_squelch_level;
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}
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