AR8X16_MASK_CTRL_VER_MASK
sc->chip_ver = (id & AR8X16_MASK_CTRL_VER_MASK) >> AR8X16_MASK_CTRL_VER_SHIFT;
switch (id & (AR8X16_MASK_CTRL_VER_MASK | AR8X16_MASK_CTRL_REV_MASK)) {