[pulseaudio-discuss] Trying HSP support in current git

[Chris Mason]

On Mon, Dec 15, 2014 at 9:20 AM, Tanu Kaskinen 
<tanu.kaskinen at linux.intel.com> wrote:
> On Mon, 2014-12-15 at 16:08 +0200, Tanu Kaskinen wrote:
>>  On Mon, 2014-12-15 at 09:04 -0500, Chris Mason wrote:
>>  >
>>  > On Mon, Dec 15, 2014 at 7:31 AM, Alexander E. Patrakov
>>  > <patrakov at gmail.com> wrote:
>>  > > 11.12.2014 23:58, Chris Mason wrote:
>>  > >> Hi everyone,
>>  > >>
>>  > >> I've compiled the current git sources to try out the new HSP 
>> supoprt.
>>  > >> When I run pactl list, I get this:
>>  > >>
>>  > >> Card #3
>>  > >>      Name: bluez_card.48_C1_AC_AD_38_DE
>>  > >>      Driver: module-bluez5-device.c
>>  > >>      Owner Module: 27
>>  > >>      Properties:
>>  > >>          device.description = "PLT M55"
>>  > >>          device.string = "48:C1:AC:AD:38:DE"
>>  > >>          device.api = "bluez"
>>  > >>          device.class = "sound"
>>  > >>          device.bus = "bluetooth"
>>  > >>          device.form_factor = "headset"
>>  > >>          bluez.path = "/org/bluez/hci0/dev_48_C1_AC_AD_38_DE"
>>  > >>          bluez.class = "0x240404"
>>  > >>          bluez.alias = "PLT_M55"
>>  > >>          device.icon_name = "audio-headset-bluetooth"
>>  > >>          device.intended_roles = "phone"
>>  > >>      Profiles:
>>  > >>          headset_head_unit: Headset Head Unit (HSP/HFP) 
>> (sinks: 1,
>>  > >> sources: 1, priority: 20, available: no)
>>  > >>          a2dp_sink: High Fidelity Playback (A2DP Sink) (sinks: 
>> 1,
>>  > >> sources: 0, priority: 10, available: yes)
>>  > >>          off: Off (sinks: 0, sources: 0, priority: 0, 
>> available: yes)
>>  > >>      Active Profile: a2dp_sink
>>  > >>      Ports:
>>  > >>          headset-output: Headset (priority: 0, latency offset: 
>> 0
>>  > >> usec,
>>  > >> available)
>>  > >>              Part of profile(s): headset_head_unit, a2dp_sink
>>  > >>          headset-input: Headset (priority: 0, latency offset: 
>> 0 usec,
>>  > >> not available)
>>  > >>              Part of profile(s): headset_head_unit
>>  > >>
>>  > >>
>>  > >> Which is almost great, but doesn't show the HSP mode as 
>> available.
>>  > >> Sound
>>  > >> works, but the microphone doesn't.  I must be missing something
>>  > >> simple?
>>  > >
>>  > > What you describe here looks a lot like this bug, only in the
>>  > > opposite direction:
>>  > >
>>  > > 
>> https://urldefense.proofpoint.com/v1/url?u=https://bugs.freedesktop.org/show_bug.cgi?id%3D87081&k=ZVNjlDMF0FElm4dQtryO4A%3D%3D%0A&r=6%2FL0lzzDhu0Y1hL9xm%2BQyA%3D%3D%0A&m=eWIJice%2FF75O8CrQzfpVe%2FjfmiGfUmYkvw0wGSQGwlQ%3D%0A&s=fcd39ccd27b95317df39cb70760d77df17e4fdd131d48fe7ef6fb337ae50f5e0
>>  > >
>>  > > David has sent a patch with the subject "WIP: Trying to allow 
>> being
>>  > > on unavailable profiles" which may help. After all, you have an
>>  > > unavailable "headset_head_unit" profile.
>>  >
>>  > That does sound similar.  I'm having a hard time digging out the 
>> patch,
>>  > can you provide a link?  Happy to try here.
>> 
>>  The log shows that the HSP profile never gets connected (or at least
>>  PulseAudio doesn't see it getting connected). You can probably check
>>  with bluetoothctl which profiles have been connected (I don't know 
>> the
>>  exact command, though).
> 
> I should add: I don't think that patch will help anything. The issue
> that the patch tries to solve is that the a2dp profile may not be
> available when the card is initially loaded, but your problem is that
> the hsp profile never becomes available. The patch won't help with 
> that
> problem.

Confirmed, the patch doesn't change the problem.  Any hints on how to 
connect to a specific class of uuids?  bluetoothctl info shows them all:

[bluetooth]# info 48:C1:AC:AD:38:DE
Device 48:C1:AC:AD:38:DE
	Name: PLT_M55
	Alias: PLT_M55
	Class: 0x240404
	Icon: audio-card
	Paired: yes
	Trusted: yes
	Blocked: no
	Connected: yes
	LegacyPairing: no
	UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
	UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
	UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
	UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
	UUID: Handsfree                 (0000111e-0000-1000-8000-00805f9b34fb)
	UUID: PnP Information           (00001200-0000-1000-8000-00805f9b34fb)
	Modalias: bluetooth:v000Fp0000d0000


-chris