Re: [PATCH BlueZ v0 0/4] AVRCP connection-tracking issues

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Hi Mikel,

On Thu, May 23, 2013 at 2:28 AM, Mikel Astiz <mikel.astiz.oss@xxxxxxxxx> wrote:
> From: Mikel Astiz <mikel.astiz@xxxxxxxxxxxx>
>
> This patchset addresses the issues reported by Alex Deymo in the thread "audio: Connect doesn't return when audio device is off". Extracted from his message:
>
> "There are two ways to hit this problem:
> * One is to attempt a connection when the device is off,
> * the other one is to attempt a connection from the host right after
> you short press the button with the bluetooth logo on the speakers.
> This button normally reconnects the speakers to the host, but if you
> attempt a connection while the device is also doing that, you end up
> in the same situation."
>
> I have been able to reproduce the first issue, which should be fixed with patch 1/4. The second issue is addressed in patch 3/4 but I couldn't actually test it.
>
> Patch 4/4 tries to improve the AVRCP role heuristic, which could alone fix Alex's issues, but I think the core cannot rely on this heuristic nevertheless.
>
> Mikel Astiz (4):
>   avrcp: Fix missing reply to profile connect
>   control: Remove unused parameter
>   avrcp: Fix service connections not reported to core
>   avrcp: Don't require active sink in role heuristic
>
>  profiles/audio/avrcp.c   | 17 ++++-------------
>  profiles/audio/control.c | 37 +++++++++++++++++++++++++++----------
>  profiles/audio/control.h |  7 +++----
>  3 files changed, 34 insertions(+), 27 deletions(-)
>
> --
> 1.8.1.4

By looking at your patch 2/4 it seems we are not able to really tell
if a connection attempt has failed anymore, so I think there is
probably something wrong. The host down error should probably stop
continuing connection whenever it fails the first time, the issue with
the connection clash is probably different though and perhaps we
should go ahead with the heuristic fix and see if that fixes all the
problems.

@Alex: Can you test the last patch from Mikel for the second issue
with the remote device connecting to us while we are connecting to it?
The host down I think Johan has been working on that and we should
have a patch soon.


--
Luiz Augusto von Dentz
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