/*
 * PackagerAMC1210.h
 *
 *  Created on: 28 авг. 2019 г.
 *      Author: user
 */

#ifndef SOURCE_DRIVER_CHIPSET_PACKAGERAMC1210_H_
#define SOURCE_DRIVER_CHIPSET_PACKAGERAMC1210_H_

#include <cstddef>
#include <stdint.h>

namespace driver { namespace chipset {

struct PackagerAMC1210 {
    static const std::size_t FrameSize; //!<Фиксированный размер кадра передаваемого по линии связи для данного типа пакеджера.

    typedef uint16_t RegAddress;    //!<Тип адреса регистра в устройстве.

    struct Frame {
        uint16_t frame[8];

        bool operator!=( const Frame & other );
    };

    struct Data {
        int16_t data[7];
    };

    static Frame encode( RegAddress rg_address, Data data, bool write_nread );
    static Data decode( Frame frame );

    struct Packager {
        typedef PackagerAMC1210::Frame Frame;
        typedef PackagerAMC1210::Data Data;

        RegAddress rg_address;
        bool write_nread;

        Frame pack( Data ) const;
        Data unpack( Frame ) const;
    };

private:
    static const uint16_t READ_OP_CODE   = 0x01;
    static const uint16_t WRITE_OP_CODE  = 0x00;

    //!Структура адресного заголовка фрейма.
    struct AddressingRegisterForm {
        uint16_t                    : 8;
        uint16_t REGISTER_ADDRESS   : 7;
        uint16_t READ_WRITE_OP      : 1;

        AddressingRegisterForm(uint16_t reg_addr, bool write_nread) :
            REGISTER_ADDRESS(reg_addr),
            READ_WRITE_OP(write_nread ? WRITE_OP_CODE : READ_OP_CODE) {}
    };

    //!Структура компановки адресного заголовка и СЛОВА данных.
    struct RegisterAddressAndData {
        AddressingRegisterForm address;
        Data data;
    };

};

inline driver::chipset::PackagerAMC1210::Frame driver::chipset::PackagerAMC1210::Packager::pack(Data data) const {

    return encode( rg_address, data, write_nread );

}

inline driver::chipset::PackagerAMC1210::Data driver::chipset::PackagerAMC1210::Packager::unpack(
        Frame frame) const {

    return decode( frame );

}

} /* namespace chipset */
} /* namespace driver */

#endif /* SOURCE_DRIVER_CHIPSET_PACKAGERAMC1210_H_ */