BWN_PHY_DACCTL
sav->phy_dacctl_hwpctl = BWN_PHY_READ(mac, BWN_PHY_DACCTL);
BWN_PHY_SET(mac, BWN_PHY_DACCTL, 0x40);
sav->phy_dacctl = BWN_PHY_READ(mac, BWN_PHY_DACCTL);
BWN_PHY_WRITE(mac, BWN_PHY_DACCTL, sav->phy_dacctl);
BWN_PHY_WRITE(mac, BWN_PHY_DACCTL, sav->phy_dacctl_hwpctl);
BWN_PHY_SETMASK(mac, BWN_PHY_DACCTL, 0xffc3, bbatt << 2);
BWN_PHY_SETMASK(mac, BWN_PHY_DACCTL, 0xff87, bbatt << 3);