m5_codec.hpp

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/*
 * SPDX-FileCopyrightText: 2026 M5Stack Technology CO LTD
 *
 * SPDX-License-Identifier: MIT
 */
#ifndef M5_UNIT_RF433_CODEC_M5_CODEC_HPP
#define M5_UNIT_RF433_CODEC_M5_CODEC_HPP
 
#include "protocol_codec.hpp"
#include <m5_utility/crc.hpp>
 
namespace m5 {
namespace unit {
namespace rf433 {
 
class M5Codec : public ProtocolCodec {
public:
    M5Codec() : ProtocolCodec(CodecType::M5RF433)
    {
    }
 
    item_container_type encode(const uint8_t* payload, uint32_t payload_len) override;
 
    bool decode(const gpio::m5_rmt_item_t* items, uint32_t num, uint8_t* work_buf, uint16_t work_buf_size,
                DecodeResult& result) override;
 
    uint8_t overhead() const override
    {
        // CRC8(1) + ID(1) + Count(1) + Length(1) = 4
        return 4;
    }
 
 
    inline communication_identifier_t communicationIdentifier() const
    {
        return _comm_id;
    }
    inline void setCommunicationIdentifier(communication_identifier_t id)
    {
        _comm_id = id;
    }
 
private:
    communication_identifier_t _comm_id{};
    uint8_t _send_count{};
};
 
}  // namespace rf433
}  // namespace unit
}  // namespace m5
#endif