mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-20 21:24:22 -05:00
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2023 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_tpms.hpp"
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#include "audio_dma.hpp"
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#include "dsp_fir_taps.hpp"
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#include "event_m4.hpp"
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TPMSProcessor::TPMSProcessor() {
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decim_0.configure(taps_200k_decim_0.taps);
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decim_1.configure(taps_200k_decim_1.taps);
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baseband_thread.start();
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}
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void TPMSProcessor::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 decimator_out = decim_1.execute(decim_0_out, dst_buffer);
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/* 307.2kHz, 256 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_38k4_1t_19k2.execute_once(decimator_out.p[i])) {
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clock_recovery_fsk_19k2(mf_38k4_1t_19k2.get_output());
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}
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}
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for (size_t i = 0; i < decimator_out.count; i += channel_decimation) {
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const auto sliced = ook_slicer_5sps(decimator_out.p[i]);
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slicer_history = (slicer_history << 1) | sliced;
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clock_recovery_ook_8k192(slicer_history, [this](const bool symbol) {
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this->packet_builder_ook_8k192_schrader.execute(symbol);
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});
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clock_recovery_ook_8k4(slicer_history, [this](const bool symbol) {
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this->packet_builder_ook_8k4_schrader.execute(symbol);
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});
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}
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}
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void TPMSProcessor::on_message(const Message* const msg) {
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if (msg->id == Message::ID::AudioBeep)
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on_beep_message(*reinterpret_cast<const AudioBeepMessage*>(msg));
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}
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void TPMSProcessor::on_beep_message(const AudioBeepMessage& message) {
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audio::dma::beep_start(message.freq, message.sample_rate, message.duration_ms);
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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<TPMSProcessor>()};
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event_dispatcher.run();
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return 0;
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}
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