mirror of
https://github.com/eried/portapack-mayhem.git
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bb3cb6f080
Ideally, it'd get pushed back into baseband, and baseband would correct for the length of the packet (based on preamble/access code match timestamp minus preamble/access code duration) to give the exact time the packet started.
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/*
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* Copyright (C) 2015 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 "app_tpms.hpp"
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#include "portapack.hpp"
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using namespace portapack;
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#include "string_format.hpp"
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#include "lpc43xx_cpp.hpp"
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using namespace lpc43xx;
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TPMSModel::TPMSModel() {
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receiver_model.set_baseband_configuration({
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.mode = 5,
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.sampling_rate = 2457600,
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.decimation_factor = 4,
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});
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receiver_model.set_baseband_bandwidth(1750000);
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log_file.open_for_append("tpms.txt");
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}
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ManchesterFormatted TPMSModel::on_packet(const TPMSPacketMessage& message) {
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rtc::RTC received_at;
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rtcGetTime(&RTCD1, &received_at);
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const ManchesterDecoder decoder(message.packet.payload, message.packet.bits_received, 1);
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const auto hex_formatted = format_manchester(decoder);
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if( log_file.is_ready() ) {
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const auto tuning_frequency = receiver_model.tuning_frequency();
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// TODO: function doesn't take uint64_t, so when >= 1<<32, weirdness will ensue!
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const auto tuning_frequency_str = to_string_dec_uint(tuning_frequency, 10);
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std::string entry = tuning_frequency_str + " FSK 38.4 19.2 " + hex_formatted.data + "/" + hex_formatted.errors;
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log_file.write_entry(received_at, entry);
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}
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return hex_formatted;
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}
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namespace ui {
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void TPMSView::on_show() {
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Console::on_show();
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auto& message_map = context().message_map();
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message_map.register_handler(Message::ID::TPMSPacket,
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[this](Message* const p) {
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const auto message = static_cast<const TPMSPacketMessage*>(p);
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this->log(this->model.on_packet(*message));
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}
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);
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}
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void TPMSView::on_hide() {
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auto& message_map = context().message_map();
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message_map.unregister_handler(Message::ID::TPMSPacket);
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Console::on_hide();
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}
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void TPMSView::log(const ManchesterFormatted& formatted) {
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writeln(formatted.data.substr(0, 240 / 8));
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}
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} /* namespace ui */
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