alsa-project alsa-ucm : Audio endpoint is not switching when external mic connected

[Mukunda, Vijendar]

> -----Original Message-----
> From: Jaroslav Kysela <perex at perex.cz>
> Sent: Wednesday, June 3, 2020 6:28 PM
> To: Mukunda, Vijendar <Vijendar.Mukunda at amd.com>; Takashi Iwai
> <tiwai at suse.de>
> Cc: Hui Wang <hui.wang at canonical.com>; alsa-devel at alsa-project.org
> Subject: Re: alsa-project alsa-ucm : Audio endpoint is not switching when
> external mic connected
> 
> Dne 03. 06. 20 v 12:58 Mukunda, Vijendar napsal(a):
> >
> >
> >> -----Original Message-----
> >> From: Takashi Iwai <tiwai at suse.de>
> >> Sent: Wednesday, June 3, 2020 4:06 PM
> >> To: Mukunda, Vijendar <Vijendar.Mukunda at amd.com>
> >> Cc: Hui Wang <hui.wang at canonical.com>; Jaroslav Kysela
> <perex at perex.cz>;
> >> alsa-devel at alsa-project.org
> >> Subject: Re: alsa-project alsa-ucm : Audio endpoint is not switching when
> >> external mic connected
> >>
> >> On Wed, 03 Jun 2020 12:32:41 +0200,
> >> Mukunda, Vijendar wrote:
> >>>
> >>>
> >>>
> >>>> -----Original Message-----
> >>>> From: Takashi Iwai <tiwai at suse.de>
> >>>> Sent: Wednesday, June 3, 2020 3:05 PM
> >>>> To: Hui Wang <hui.wang at canonical.com>
> >>>> Cc: Jaroslav Kysela <perex at perex.cz>; Mukunda, Vijendar
> >>>> <Vijendar.Mukunda at amd.com>; alsa-devel at alsa-project.org
> >>>> Subject: Re: alsa-project alsa-ucm : Audio endpoint is not switching when
> >>>> external mic connected
> >>>>
> >>>> On Wed, 03 Jun 2020 02:36:25 +0200,
> >>>> Hui Wang wrote:
> >>>>>
> >>>>>
> >>>>> On 2020/6/3 上午3:39, Jaroslav Kysela wrote:
> >>>>>> Dne 02. 06. 20 v 19:57 Mukunda, Vijendar napsal(a):
> >>>>>>> We recently up streamed ACP PDM driver for Renoir APU.
> >>>>>>>
> >>>>>>> Our ACP IP has an internal PDM Decoder block where DMIC is directly
> >>>>>>> connected.
> >>>>>>> There are no KControls defined for PDM Driver.
> >>>>>>>
> >>>>>>> Our platform supports on board DMIC and South bridge Azalia (HD
> >>>>>>> Audio ) endpoint .
> >>>>>>> By default, DMIC endpoint is used as audio input device.
> >>>>>>> When Headset Mic jack connected, it's not switching to External Mic.
> >>>>>>
> >>>>>> Make sure that the Headset Mic priority port in pulseaudio is is
> >>>>>> greater than the one for DMIC.
> >>>>>>
> >>>>>>> How does audio endpoint will switch in gnome when external mic is
> >>>>>>> connected?
> >>>>>>>>  From our understanding, UCM conf file for HDA driver is also
> >>>>>>>> required for
> >>>>>>> configuring mixer controls for HD Audio capture device.
> >>>>>>> Similarly when External Mic is removed , it has to switch to
> >>>>>>> internal dmic .
> >>>>>>
> >>>>>> An configuration example for UCM (DMIC connected to DSP, HDA
> codec
> >>>>>> for rest):
> >>>>>>
> >>>>>>
> >>>>
> >>
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub
> >>>> .com%2Falsa-project%2Falsa-ucm-
> conf%2Ftree%2Fmaster%2Fucm2%2Fsof-
> >>>> hda-
> >>>>
> >>
> dsp&data=02%7C01%7CVijendar.Mukunda%40amd.com%7C5fbb3a516d5
> >>>>
> >>
> 24c73568d08d807a157a1%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C
> >>>>
> >>
> 0%7C637267736827671946&sdata=0aO7dbLATuW%2BIeJsjWoWCGOaYEO
> >>>> WQaVwI9izppB3v7k%3D&reserved=0
> >>>>>>
> >>>>>> If you need a help to create a new configuration for your hardware,
> >>>>>> show the output from the alsa-info.sh script, please.
> >>>>>>
> >>>>>>                      Jaroslav
> >>>>>
> >>>>> This audio design is  a bit different from sof-hda-dsp, the dmic is on
> >>>>> a standalone sound card. Please see the alsa-info.txt:
> >>>>>
> >>>>>
> >>>>
> >>
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpasteb
> >>>>
> >>
> in.ubuntu.com%2Fp%2F4kprhDZYbg%2F&data=02%7C01%7CVijendar.Mu
> >>>>
> >>
> kunda%40amd.com%7C5fbb3a516d524c73568d08d807a157a1%7C3dd8961fe4
> >>>>
> >>
> 884e608e11a82d994e183d%7C0%7C0%7C637267736827671946&sdata=Q
> >>>> 50xNbF1KSqasNa0UyKzUFAzOc9KPIguBjgYHr1XSbg%3D&reserved=0
> >>>>
> >>>> And that's an interesting case.  Can we manage multiple cards in a
> >>>> single UCM profile?
> >>>>
> >>>>
> >>>> Takashi
> >>>
> >>> I am not much familiar with UCM files creation.
> >>> As per my understanding, UCM entries will program the mixer controls
> >>> depending up on the use case and selected device.
> >>
> >> UCM is more than that.  It manages which PCM device is chosen, which
> >> jack control corresponds, etc, too.
> >>
> >>
> >> Takashi
> >
> > Got it. Could you help us to get the UCM file which will work for both sound
> cards for our platform.
> 
> Please, create a new issue with the mentioned alsa-info URL at github:
> 
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub
> .com%2Falsa-project%2Falsa-ucm-
> conf%2Fissues&data=02%7C01%7CVijendar.Mukunda%40amd.com%7Ca9
> 7a3829c6f644f72b8008d807bdcd7f%7C3dd8961fe4884e608e11a82d994e183d
> %7C0%7C0%7C637267859073441689&sdata=HQlUPdDrpBwDzl%2FsgXPse
> hMvxUi4j2tEWqpn3bkV8i8%3D&reserved=0
> 
> I'll give a look when my time permits.
> 
> 					Jaroslav
> 
> --
> Jaroslav Kysela <perex at perex.cz>
> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.

Created ticket for the same in git hub. Below is the link.
https://github.com/alsa-project/alsa-ucm-conf/issues/30