Function get_phy_id

components/drivers/phy/phy.c:330–349

* @brief get phy id * * get phy id by read the register 2 and 3 of PHY device, * Register of the MII management interface stipulates that * register 2 contains thehigh 16 bits of the PHY’s identifier * the register 3 contains the low 16 bits of the PHY’s identifier * * @param bus MII bus pointer * @param addr PHY device address * @param devad dev addr if be set to zero it means c22 mode

 * @return if read success return 0,else return -RT_EIO
 */
static int get_phy_id(struct mii_bus *bus, int addr, int devad, rt_uint32_t *phy_id)
{
    int phy_reg;

    phy_reg = bus->read(bus, addr, devad, RT_MII_PHYSID1);

    if (phy_reg < 0)
        return -RT_EIO;

    *phy_id = (phy_reg & 0xffff) << 16;

    phy_reg = bus->read(bus, addr, devad, RT_MII_PHYSID2);

    if (phy_reg < 0)
        return -RT_EIO;

    *phy_id |= (phy_reg & 0xffff);

    return 0;
}

/**
 * @brief create phy device by mask