mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2017 Furrtek
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* Copyright (C) 2024 Mark Thompson
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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 "proc_sonde.hpp"
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#include "dsp_fir_taps.hpp"
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#include "event_m4.hpp"
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#include "audio_dma.hpp"
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SondeProcessor::SondeProcessor() {
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decim_0.configure(taps_11k0_decim_0.taps);
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decim_1.configure(taps_11k0_decim_1.taps);
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baseband_thread.start();
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}
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void SondeProcessor::execute(const buffer_c8_t& buffer) {
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/* 2.4576MHz, 2048 samples */
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
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const auto decimator_out = decim_1_out;
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/* 38.4kHz, 32 samples */
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feed_channel_stats(decimator_out);
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for (size_t i = 0; i < decimator_out.count; i++) {
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if (mf.execute_once(decimator_out.p[i])) {
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clock_recovery_fsk_9600(mf.get_output());
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clock_recovery_fsk_4800(mf.get_output());
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}
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}
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}
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void SondeProcessor::on_message(const Message* const msg) {
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switch (msg->id) {
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case Message::ID::RequestSignal:
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if ((*reinterpret_cast<const RequestSignalMessage*>(msg)).signal == RequestSignalMessage::Signal::BeepRequest) {
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float rssi_ratio = (float)last_rssi / (float)RSSI_CEILING;
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int beep_duration = 0;
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if (rssi_ratio <= PROPORTIONAL_BEEP_THRES) {
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beep_duration = BEEP_MIN_DURATION;
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} else if (rssi_ratio < 1) {
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beep_duration = (int)rssi_ratio * BEEP_DURATION_RANGE + BEEP_MIN_DURATION;
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} else {
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beep_duration = BEEP_DURATION_RANGE + BEEP_MIN_DURATION;
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}
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audio::dma::beep_start(beep_freq, AUDIO_SAMPLE_RATE);
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chThdSleepMilliseconds(beep_duration);
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audio::dma::beep_stop();
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}
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break;
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case Message::ID::PitchRSSIConfigure:
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pitch_rssi_config(*reinterpret_cast<const PitchRSSIConfigureMessage*>(msg));
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break;
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default:
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break;
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}
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}
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void SondeProcessor::pitch_rssi_config(const PitchRSSIConfigureMessage& message) {
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pitch_rssi_enabled = message.enabled;
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beep_freq = (int)((float)message.rssi * (float)RSSI_PITCH_WEIGHT + (float)BEEP_BASE_FREQ);
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last_rssi = message.rssi;
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}
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int main() {
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audio::dma::init_audio_out();
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EventDispatcher event_dispatcher{std::make_unique<SondeProcessor>()};
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event_dispatcher.run();
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return 0;
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}
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