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https://github.com/portapack-mayhem/mayhem-firmware.git
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acars to ext but disabled (#2288)
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Totoo
@@ -1,107 +0,0 @@
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/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2018 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 "acars_packet.hpp"
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#include "crc.hpp"
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#include <cstdlib>
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namespace acars {
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size_t Packet::length() const {
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return packet_.size();
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}
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bool Packet::is_valid() const {
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return true; // length_valid() && crc_ok();
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}
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Timestamp Packet::received_at() const {
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return packet_.timestamp();
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}
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uint8_t Packet::block_id() const {
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return field_.read(96, 8);
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}
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std::string Packet::registration_number() const {
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std::string result;
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result.reserve(7);
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const size_t character_length = 8;
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for (size_t i = 16; i < (16 + 7 * character_length); i += character_length) {
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result += (field_.read(i, character_length) & 0x7F);
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}
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return result;
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}
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uint32_t Packet::read(const size_t start_bit, const size_t length) const {
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return field_.read(start_bit, length);
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}
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/*std::string Packet::text(
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const size_t start_bit,
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const size_t character_count
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) const {
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std::string result;
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result.reserve(character_count);
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const size_t character_length = 6;
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const size_t end_bit = start_bit + character_count * character_length;
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for(size_t i=start_bit; i<end_bit; i+=character_length) {
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result += char_to_ascii(field_.read(i, character_length));
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}
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return result;
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}*/
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bool Packet::crc_ok() const {
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CRCReader field_crc{packet_};
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CRC<16> acars_fcs{0x1021, 0x0000, 0x0000};
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for (size_t i = 0; i < data_length(); i += 8) {
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acars_fcs.process_byte(field_crc.read(i, 8));
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}
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return (acars_fcs.checksum() == (unsigned)field_crc.read(data_length(), fcs_length));
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}
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size_t Packet::data_and_fcs_length() const {
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return length() - 8;
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}
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size_t Packet::data_length() const {
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return data_and_fcs_length() - fcs_length;
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}
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bool Packet::length_valid() const {
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const size_t extra_bits = data_and_fcs_length() & 7;
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if (extra_bits != 0) {
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return false;
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}
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return true;
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}
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} // namespace acars
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@@ -1,74 +0,0 @@
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/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2018 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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#ifndef __ACARS_PACKET_H__
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#define __ACARS_PACKET_H__
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#include "baseband_packet.hpp"
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#include "field_reader.hpp"
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#include <cstdint>
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#include <cstddef>
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#include <string>
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namespace acars {
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class Packet {
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public:
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constexpr Packet(
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const baseband::Packet& packet)
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: packet_{packet},
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field_{packet_} {
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}
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size_t length() const;
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bool is_valid() const;
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Timestamp received_at() const;
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uint8_t block_id() const;
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std::string registration_number() const;
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uint32_t read(const size_t start_bit, const size_t length) const;
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// std::string text(const size_t start_bit, const size_t character_count) const;
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bool crc_ok() const;
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private:
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using Reader = FieldReader<baseband::Packet, BitRemapByteReverse>;
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using CRCReader = FieldReader<baseband::Packet, BitRemapNone>;
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const baseband::Packet packet_;
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const Reader field_;
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const size_t fcs_length = 16;
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size_t data_and_fcs_length() const;
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size_t data_length() const;
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bool length_valid() const;
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};
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} /* namespace acars */
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#endif /*__ACARS_PACKET_H__*/
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@@ -190,4 +190,21 @@ class Adler32 {
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}
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};
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static const unsigned char parity_numbits[256] = {
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0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
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1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
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1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
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2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
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1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
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2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
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2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
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3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8};
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class ParityCheck {
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public:
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static bool parity_check(uint8_t ch, uint8_t pbitpos = 1) {
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return ((parity_numbits[ch] & pbitpos) != 0);
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}
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};
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#endif /*__CRC_H__*/
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@@ -32,7 +32,6 @@
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#include "baseband_packet.hpp"
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#include "acars_packet.hpp"
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#include "adsb_frame.hpp"
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#include "ert_packet.hpp"
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#include "pocsag_packet.hpp"
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@@ -379,13 +378,12 @@ class POCSAGStatsMessage : public Message {
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class ACARSPacketMessage : public Message {
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public:
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constexpr ACARSPacketMessage(
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const baseband::Packet& packet)
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: Message{ID::ACARSPacket},
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packet{packet} {
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}
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baseband::Packet packet;
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constexpr ACARSPacketMessage()
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: Message{ID::ACARSPacket} {}
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uint8_t msg_len = 0;
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char message[250] = {0}; // contains the whole packet
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uint8_t crc[2] = {0};
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uint8_t state = 0; // for debug
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};
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class ADSBFrameMessage : public Message {
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