REG_BT_CONTROL_8723BU
bt_control = rtl8xxxu_read32(priv, REG_BT_CONTROL_8723BU);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, bt_control);
rtl8xxxu_write8(priv, REG_BT_CONTROL_8723BU + 1, 0x18);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, 0x00000800);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, 0x00001800);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, 0x00000800);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, 0x00001800);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, 0x00000800);
rtl8xxxu_write32(priv, REG_BT_CONTROL_8723BU, 0x00001800);