BWN_PHY_RF_PWR_OVERRIDE
BWN_PHY_SETMASK(mac, BWN_PHY_RF_PWR_OVERRIDE, 0xff00,
orf = BWN_PHY_READ(mac, BWN_PHY_RF_PWR_OVERRIDE) & 0xff;
BWN_PHY_SETMASK(mac, BWN_PHY_RF_PWR_OVERRIDE, 0xff00, orf);