Audio.conf is updated to support fast connectable mode. Set
FastConnectable to true to enable and to false to disable. Headset
initialization and call indicators are updated respectively. It is
disabled by default.
This patch adds logic for automatically connecting both A2DP and HFP profiles
if the headset only connects the other. The feature can be switched off using
the AutoConnect audio.conf parameter.
It's very tricky to get the multiple connected HSP/HFP devices use case right.
E.g. in the case of in-band ringtone the specification mandates us to open SCO
to the HFP before sending RING indications. So, in the case of multiple
connected devices we would have to open multimple simultaneous SCO connections
which simply isn't a wise thing to do.
