953019 - [HID] Notify user to press any key on the bluetooth keyboard to init connection

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Bluetooth, defect)

Description

[Shawn Huang [:shawnjohnjr][:shuang] (as a happy gecko contributor)]

Some bluetooth keyboard does not support connection initiated from phone. It is supposed to add notification.

So Gecko is suppose to tell the HID keyboard supports:
a. HID Keyboard can accept connection initiated from phone
b. HID keyboard can accept reconnection initiated from phone

Impact:
Some HID keyboards only design as that the connection only initiated from keyboard itself. If we don't guide user, user would think HID keyboard fail to connect.

Use case might look like:
1. Pair with Bluetooth HID keyboard
2. Bluetooth HID connection established
3. HID Connection drop if users disconnect or turn off bluetooth from the phone
4. User turns on bluetooth again
5. If user connects with bluetooth hid keyboard, user shall expect to see HID keyboard gets connected or a dialog showing that user shall press any key on keyboard to recover HID keyboard connection

Tech detail:
 bluedroid will check SDP records with HID normally connectable
 and HIDReconnectInitiate and HIDNormallyConnectable.
 HIDReconnectInitiate attribute is a boolean value, which indicates
 whether the device initiates the reconnection process or expects the host to.
 Devices that have this attribute True shall enter Page mode to automatically
 reconnect to the host if the connection is dropped for any unknown reason.

 HIDNormallyConnectable is an optional Boolean attribute that specifies
 whether a HID is normally in Page Scan mode (when no connection is active)
 or not. If the device declares this attribute and sets it to true, it shall
 remain connectable in order to respond.

Comment 1

[Shawn Huang [:shawnjohnjr][:shuang] (as a happy gecko contributor)]

Hi Neo,
Please consider this scenario if Bluetooth HID is in your spec.

Comment 2

[Neo Hsieh [:neo]]

Hi Bruce, I know this is a important function. But seems not in 1.4 scope. Please help to review that and give us feedback. Thanks.

Comment 3

[Shawn Huang [:shawnjohnjr][:shuang] (as a happy gecko contributor)]

Bruce, I ni? Neo because I hope UX team can take consideration whenever HID is in scope, since we have done some efforts on Bluetooth HID profile already and it is good to notify UX team earlier. Since I'm not sure when HID will be considered in later milestone.

Comment 4

[Shawn Huang [:shawnjohnjr][:shuang] (as a happy gecko contributor)]

Bruce,
If HID is part of your future plan, this bug also needs gaia work.

Comment 5

[Bruce Huang [:bhuang] (inactive)]

This will need stream 3 resources for UX/Gaia.  Adding to backlog first.

Comment 6

[Jenny Lee]

Attachment: [2.2 Settings] Bluetooth +HID v1.0.pdf

See attached for spec. Tks ;)

Comment 7

[Louis Chang [:louis]]

Hi Shawn,
  How can we get SDP record through bluedroid stack. So that we can determine whether to notify user to establish connection from HID Device or not?

Thanks,
Louis

Comment 8

[Shawn Huang [:shawnjohnjr][:shuang] (as a happy gecko contributor)]

(In reply to lochang from comment #7)
> Hi Shawn,
>   How can we get SDP record through bluedroid stack. So that we can
> determine whether to notify user to establish connection from HID Device or
> not?
> 
> Thanks,
> Louis

This attribute mask can be retrieved from hid info struct. I guess we can get it from hid_info_callback.

Comment 9

[Jocelyn Liu [:jocelyn] [:joliu]]

Deassign myself since I'm not working on this bug.

Comment 10

[Louis Chang [:louis]]

For now, resolving this bug is user experience decision (or we can resolve it after finding a way to receive the flag |HIDNormallyConnectable| in gecko).

As describe in comment 1, some bluetooth keyboard does not support reconnection initiated from phone (only support one-way reconnection initiated from keyboard itself). So for better user experience, we should notify user to press any key on the keyboard to establish the reconnection. To accomplish this function, we have to check whether the flag |HIDNormallyConnectable| in HID device is set or not. But now we have no way to receive this information in gecko.

We have teseted for several android device including Motorola nexus6-l, HTC One mini2-jb, LG nexus5-l, Sony z3-l. And only HTC mini2 notifies user to establish the reconnection from keyboard. It implements this function without checking the |HIDNormallyConnectable| flag, but directly notifies user for every keyboard (even the keyboard which |HIDNormallyConnectable| is set).

Comment 11

[BMO Automation]

Firefox OS is not being worked on