On 25.05.2016 16:57, Denis Kenzior wrote:
Hi John,
On 05/25/2016 06:01 AM, Jomon John wrote:
Hi,
I am trying to configure HFP with Bluez(5.34), Ofono(1.17) and
pulseaudio(6) on a Freescale i.MX6 board using Linux 4.1.15 kernel,
the idea is to use the target board in HFP/Handsfree Unit role. The
bluetooth controller is a Pluggable USB Bluetooth Dongle (0a5c:21e8 -
BCM20702A0) with updated firmware.
The procedure followed is,
* Pair & connect with the android mobile phone with the bluetoothctl
* Enable modem and dial number using ofono test scripts
After this the call is being made but the audio routing fails with
"Reject SCO : Agent not registered" message from oFono. While
checking with btmon its found that the SCO Connect Request has been
rejected with the reason of limited resources(0x0d).
Can anyone help me to identify the root cause, I spent a lot of time
trying different version combinations, loading firmware and checking
logs but still nothing.
Did you load module-bluetooth-discover with headset=ofono as argument?
Normally this should be sufficient to make it work. When the connection
is established,
pulseaudio automatically loads loopback modules for the phone. You might
have
to check if the modules have the correct source / sink.
Additionally to observing the log files, you can debug what is going on
by using
dbus-monitor to see the messages on the dbus.
This looks like a problem with PulseAudio configuration. oFono does
not handle SCO data, PulseAudio does that. In order to do that,
PulseAudio needs to register an agent with oFono. Then the SCO socket
will be established and the fd handed off to PulseAudio to process the
audio data.
I have no idea how this is accomplished in PulseAudio. This question
is being asked fairly often recently. Does PulseAudio have an
FAQ/documentation for this yet?
Unfortunately there is no HowTo as far as I know. Most stuff you find on
the net is outdated.
Regards,
-Denis
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