panasonic_codec.hpp

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/*
 * SPDX-FileCopyrightText: 2026 M5Stack Technology CO LTD
 *
 * SPDX-License-Identifier: MIT
 */
#ifndef M5_UNIT_INFRARED_IR_PANASONIC_CODEC_HPP
#define M5_UNIT_INFRARED_IR_PANASONIC_CODEC_HPP
 
#include "ir_codec.hpp"
 
namespace m5 {
namespace unit {
namespace ir {
 
class PanasonicCodec : public IRCodec {
public:
    PanasonicCodec() : IRCodec(CodecType::Panasonic)
    {
    }
 
    item_container_type encode(uint16_t address, uint16_t command, bool repeat) override;
    bool decode(const gpio::m5_rmt_item_t* items, uint32_t num, DecodeResult& result) override;
 
    uint32_t carrierFrequencyHz() const override
    {
        return 36700;
    }
 
    item_container_type encodeRaw48(uint64_t data48);
 
    static uint64_t encodePanasonic(uint16_t manufacturer, uint8_t device, uint8_t subdevice, uint8_t function)
    {
        uint8_t checksum = static_cast<uint8_t>(device ^ subdevice ^ function);
        return (static_cast<uint64_t>(manufacturer) << 32) | (static_cast<uint64_t>(device) << 24) |
               (static_cast<uint64_t>(subdevice) << 16) | (static_cast<uint64_t>(function) << 8) |
               static_cast<uint64_t>(checksum);
    }
 
private:
    static constexpr uint16_t LEADER_MARK{3500};
    static constexpr uint16_t LEADER_SPACE{1750};
    static constexpr uint16_t BIT_MARK{425};
    static constexpr uint16_t ONE_SPACE{1275};
    static constexpr uint16_t ZERO_SPACE{425};
    static constexpr uint16_t TOLERANCE{200};
};
 
}  // namespace ir
}  // namespace unit
}  // namespace m5
#endif