//
// Copyright 2017 Ettus Research (National Instruments Corp.)
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#include "b100_impl.hpp"
#include <uhdlib/utils/eeprom_utils.hpp>
#include <uhd/usrp/mboard_eeprom.hpp>

namespace {
    const uint8_t B100_EEPROM_ADDR = 0x50;

    //use char array so we dont need to attribute packed
    struct b100_eeprom_map{
        unsigned char _r[220];
        unsigned char revision[2];
        unsigned char product[2];
        unsigned char name[NAME_MAX_LEN];
        unsigned char serial[SERIAL_LEN];
    };
}

using namespace uhd;
using uhd::usrp::mboard_eeprom_t;

mboard_eeprom_t b100_impl::get_mb_eeprom(uhd::i2c_iface::sptr iface)
{
    mboard_eeprom_t mb_eeprom;

    //extract the revision number
    mb_eeprom["revision"] = uint16_bytes_to_string(
        iface->read_eeprom(
            B100_EEPROM_ADDR,
            offsetof(b100_eeprom_map, revision),
            2
        )
    );

    //extract the product code
    mb_eeprom["product"] = uint16_bytes_to_string(
        iface->read_eeprom(
            B100_EEPROM_ADDR,
            offsetof(b100_eeprom_map, product),
            2
        )
    );

    //extract the serial
    mb_eeprom["serial"] = bytes_to_string(iface->read_eeprom(
        B100_EEPROM_ADDR, offsetof(b100_eeprom_map, serial), SERIAL_LEN
    ));

    //extract the name
    mb_eeprom["name"] = bytes_to_string(iface->read_eeprom(
        B100_EEPROM_ADDR, offsetof(b100_eeprom_map, name), NAME_MAX_LEN
    ));

    return mb_eeprom;
}

void b100_impl::set_mb_eeprom(
    const uhd::usrp::mboard_eeprom_t &mb_eeprom
) {
    auto &iface = _fx2_ctrl;

    //parse the revision number
    if (mb_eeprom.has_key("revision")) iface->write_eeprom(
        B100_EEPROM_ADDR, offsetof(b100_eeprom_map, revision),
        string_to_uint16_bytes(mb_eeprom["revision"])
    );

    //parse the product code
    if (mb_eeprom.has_key("product")) iface->write_eeprom(
        B100_EEPROM_ADDR, offsetof(b100_eeprom_map, product),
        string_to_uint16_bytes(mb_eeprom["product"])
    );

    //store the serial
    if (mb_eeprom.has_key("serial")) iface->write_eeprom(
        B100_EEPROM_ADDR, offsetof(b100_eeprom_map, serial),
        string_to_bytes(mb_eeprom["serial"], SERIAL_LEN)
    );

    //store the name
    if (mb_eeprom.has_key("name")) iface->write_eeprom(
        B100_EEPROM_ADDR, offsetof(b100_eeprom_map, name),
        string_to_bytes(mb_eeprom["name"], NAME_MAX_LEN)
    );
}