// AdvertiseNameAndServices advertises device name, and specified service UUIDs.
// It tries to fit the UUIDs in the advertising data as much as possible.
// If name doesn't fit in the advertising data, it will be put in scan response.
func (h *HCI) AdvertiseNameAndServices(name string, uuids ...ble.UUID) error {
ad, err := adv.NewPacket(adv.Flags(adv.FlagGeneralDiscoverable | adv.FlagLEOnly))
if err != nil {
return err
}
f := adv.AllUUID
// Current length of ad packet plus two bytes of length and tag.
l := ad.Len() + 1 + 1
for _, u := range uuids {
l += u.Len()
}
if l > adv.MaxEIRPacketLength {
f = adv.SomeUUID
}
for _, u := range uuids {
if err := ad.Append(f(u)); err != nil {
if err == adv.ErrNotFit {
break
}
return err
}
}
sr, _ := adv.NewPacket()
switch {
case ad.Append(adv.CompleteName(name)) == nil:
case sr.Append(adv.CompleteName(name)) == nil:
case sr.Append(adv.ShortName(name)) == nil:
}
if err := h.SetAdvertisement(ad.Bytes(), sr.Bytes()); err != nil {
return nil
}
return h.Advertise()
}
// AdvertiseIBeacon advertises iBeacon with specified parameters.
func (h *HCI) AdvertiseIBeacon(u ble.UUID, major, minor uint16, pwr int8) error {
ad, err := adv.NewPacket(adv.IBeacon(u, major, minor, pwr))
if err != nil {
return err
}
if err := h.SetAdvertisement(ad.Bytes(), nil); err != nil {
return nil
}
return h.Advertise()
}
// AdvertiseIBeaconData advertise iBeacon with given manufacturer data.
func (h *HCI) AdvertiseIBeaconData(md []byte) error {
ad, err := adv.NewPacket(adv.IBeaconData(md))
if err != nil {
return err
}
if err := h.SetAdvertisement(ad.Bytes(), nil); err != nil {
return nil
}
return h.Advertise()
}