portapack-mayhem/firmware/common/ert_packet.hpp
2024-02-10 16:56:50 +01:00

94 lines
2.3 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2023 Mark Thompson
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __ERT_PACKET_H__
#define __ERT_PACKET_H__
#include <cstdint>
#include <cstddef>
#include "field_reader.hpp"
#include "baseband_packet.hpp"
#include "manchester.hpp"
namespace ert {
using ID = uint32_t;
using Consumption = uint32_t;
using CommodityType = uint32_t;
using TamperFlags = uint32_t;
constexpr ID invalid_id = 0;
constexpr CommodityType invalid_commodity_type = -1;
constexpr Consumption invalid_consumption = 0;
constexpr TamperFlags invalid_tamper_flags = 0;
class Packet {
public:
enum class Type : uint32_t {
Unknown = 0,
IDM = 1,
SCM = 2,
SCMPLUS = 3,
};
Packet(
const Type type,
const baseband::Packet& packet)
: packet_{packet},
decoder_{packet_},
reader_{decoder_},
type_{type} {
}
size_t length() const;
bool is_valid() const;
Timestamp received_at() const;
Type type() const;
ID id() const;
CommodityType commodity_type() const;
Consumption consumption() const;
TamperFlags tamper_flags() const;
FormattedSymbols symbols_formatted() const;
bool crc_ok() const;
private:
using Reader = FieldReader<ManchesterDecoder, BitRemapNone>;
const baseband::Packet packet_;
const ManchesterDecoder decoder_;
const Reader reader_;
const Type type_;
bool crc_ok_ccitt() const;
bool crc_ok_scm() const;
};
} /* namespace ert */
#endif /*__ERT_PACKET_H__*/