mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-15 04:28:10 +00:00
128 lines
3.2 KiB
C++
128 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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*
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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_output.hpp"
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SondeProcessor::SondeProcessor() {
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decim_0.configure(taps_11k0_decim_0.taps, 33554432);
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decim_1.configure(taps_11k0_decim_1.taps, 131072);
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audio_output.configure(false);
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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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if(pitch_rssi_enabled) {
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if(beep_playing) {
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beep_loop();
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}
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else {
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silence_loop();
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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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play_beep();
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chThdSleepMilliseconds(100);
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stop_beep();
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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::play_beep() {
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beep_playing = true;
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}
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void SondeProcessor::stop_beep() {
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beep_playing = false;
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}
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void SondeProcessor::beep_loop() {
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for (size_t i = 0; i < sizeof(audio_buffer.p); i++) {
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audio_buffer.p[i] = (sine_table_i8[(tone_phase & 0xFF000000U) >> 24]) * 128;
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tone_phase += tone_delta;
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}
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audio_output.write(audio_buffer);
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}
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void SondeProcessor::silence_loop() {
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for (size_t i = 0; i < sizeof(audio_buffer.p); i++) {
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audio_buffer.p[i] = 0;
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}
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audio_output.write(audio_buffer);
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}
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void SondeProcessor::pitch_rssi_config(const PitchRSSIConfigureMessage& message) {
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// rtc::RTC datetime;
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// rtcGetTime(&RTCD1, &datetime);
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// log_file.write_entry(datetime, "pitch_rssi_config: message.rssi: " + message.rssi);
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pitch_rssi_enabled = message.enabled;
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tone_delta = (message.rssi * 10 + 1000) * ((1ULL << 32) / 24000);
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// log_file.write_entry(datetime, "pitch_rssi_config: tone_delta: " + tone_delta);
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}
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int main() {
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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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