Dne 20. 06. 20 v 6:18 Hui Wang napsal(a):
On 2020/6/17 下午7:21, Jaroslav Kysela wrote:
Dne 17. 06. 20 v 7:47 Mukunda,Vijendar napsal(a):
Renoir platform has onboard dmic + south bridge HD Audio endpoint
support.
For onboard Dmic, Audio endpoint name is populated as "Analog Input"
in Audio input devices.
How can we populate name as "Internal Mic" or "Dmic" in audio input
devices tab in sound settings?
Alsa info link: https://pastebin.ubuntu.com/p/4kprhDZYbg/
Pluse audio info output: https://pastebin.ubuntu.com/p/sdx9Xs234C/
It's question for pulseaudio. For the legacy ALSA code in PA, you need
to create profile, mixer path and udev rules. The probe mechanism used
in PA looks for the volume controls and path switches (kcontrol) API
to determine the device name. If not found, the generic name is used.
It's better to finish the UCM support for this hardware:
https://github.com/alsa-project/alsa-ucm-conf/issues/30
I just added a comment on the issues/30.
So far the biggest issue is how to make the ucm only apply to machines
with renoir audio and let those ucm not affect other machines.
I know this. The latest alsa-lib can substitute $${CardIdByName:acp} and the
result will be an empty string (double $$ means ignore errors), if the acp
driver is not available. We can create a conditional configuration with this.
If PA does not see defined any verbs, it skips the ucm probe and continue with
the legacy probe.
The AMD should also create a patch to not create the acp sound card when the
hardware platform does not have digital microphones. It seems that the dmic
presence can be detected via the ACPI / _WOV table.
Thank you for your tests. I plan to finish the ACP specific config next week
and move the common HDA parts to one place. There are also other things which
I want to update for UCM configs.
Jaroslav
Thanks,
Hui.
Jaroslav
Thanks,
Vijendar
--
Jaroslav Kysela <perex@xxxxxxxx>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
