[pulseaudio-discuss] [PATCH v4 0/3] use bluetooth HFP in pulseaudio when available

[Georg Chini]

On 20.09.2017 01:27, James Bottomley wrote:
> This is round 4 of the initial bluetooth: separate HSP and HFP patch.
>   It includes the review feedback and a global on/off switch just in
> case there's a problem headset with dual HFP/HSP but non-working HFP.
>   This one now includes a proper rfcomm negotiation (see patch 3).  I've
> finally figured out a bug in the rfcomm negotiation that was causing
> issues with my LG 900 headset, so I think it's now working for
> everything (but testing would be welcome).
>
> James Bottomley (3):
>    bluetooth: use consistent profile names
>    bluetooth: separate HSP and HFP
>    bluetooth: add correct HFP rfcomm negotiation
>
>   src/modules/bluetooth/backend-native.c          | 168 +++++++++++++++++++++---
>   src/modules/bluetooth/backend-ofono.c           |   4 +-
>   src/modules/bluetooth/bluez5-util.c             |  46 +++++--
>   src/modules/bluetooth/bluez5-util.h             |  10 +-
>   src/modules/bluetooth/module-bluetooth-policy.c |   3 +-
>   src/modules/bluetooth/module-bluez5-device.c    | 102 ++++++++++----
>   src/modules/bluetooth/module-bluez5-discover.c  |   6 +-
>   7 files changed, 274 insertions(+), 65 deletions(-)
>
Hello James,

thank you for continuing your work. Unfortunately your patch set collides
with running ofono. Currently, with the default of "headest=auto", the 
native
and the ofono backends are active in parallel. This is possible because 
ofono
only supports HFP while PA only supports HSP.

If PA starts supporting HFP headsets, this breaks above assumption and
ofono and PA both try to register the corresponding HFP UUID.

To work around the problem, I suggest to disable native HFP support if
headset_backend == HEADSET_BACKEND_AUTO, unless configured otherwise
on the command line.

Then, native HFP would normally only be available with "headset=native", but
those who want to support a mobile through ofono and a HFP headset directly
through PA can still configure it by explicitly enabling HFP headsets in 
PA and
disabling them on the ofono side.

Regards
              Georg