BWN_PHY_RX_GAIN_CTL_OVERRIDE_VAL
BWN_PHY_WRITE(mac, BWN_PHY_RX_GAIN_CTL_OVERRIDE_VAL, 0x45af);
BWN_PHY_WRITE(mac, BWN_PHY_RX_GAIN_CTL_OVERRIDE_VAL, lna);
BWN_PHY_WRITE(mac, BWN_PHY_RX_GAIN_CTL_OVERRIDE_VAL, low_gain);