No support Capture selection, for Allwinner A20 Audio Codec

[olegoldtom]

Hello,

 

Please help with this issue:

 

No Сapture selection in alsamixer or amixer.

 

root@cubieboard2:~# arecord -l

**** List of CAPTURE Hardware Devices ****

card 1: sun4icodec [sun4i-codec], device 0: CDC PCM Codec-0 [CDC PCM Codec-0]

  Subdevices:1/1

  Subdevice #0: subdevice #0

 

root@cubieboard2:~# amixer -c 1 sget 'Line Boost'

  Capabilities: volume volume-joined

  Playback channels: Mono

  Capture channels: Mono

  Limits: 0 - 7

  Mono: 7 [100%] [9.00dB]

 

root@cubieboard2:~# amixer -c 1 sset 'Line Boost' cap

amixer: Invalid command!

 

root@cubieboard2:~# arecord -f S16_LE -r 22050 -D hw:1,0 /home/456.wav  - The sound is recorded from the internal microphone('Mic1 Boost') and there is no possibility to change the sound source.

 

How to choose a sound source: Line In('Line Boost')?

 

 

Armbian 21.02.2 Buster with Linux 5.10.16-sunxi

[Werner]

Providing logs with 

armbianmonitor -u

 helps with troubleshooting and significantly raises chances that issue gets addressed.

[olegoldtom]

Hello,

 

Continuation of the topic the problem with capturing audio on CubieBoard2.

 

At the moment, the issue has been resolved.

In file sun4i-codec.c there was no description of the ADCIS register, which is responsible for selecting the sound source.

Modifications have been made to file sun4i-codec.c to select the Capture Source and Captute Level.

New sun4i-codec.c

Patch sun4i-codec.c

 

If it is possible to make these changes to the kernel for builds Armbian Buster & Armbian Focal.

This change is needed for the A20 processors.

 

With thanks

 

Oleg

[Werner]

Would you mind create PR to sunxi-current and sunxi-edge to get it integrated?

https://github.com/armbian/build/tree/master/patch/kernel

[olegoldtom]

Sorry, I am not registered on GitHub.

Are you writing about the need for current and new files?

[olegoldtom]

Current sun4i-codec.c

[Werner]

47 minutes ago, olegoldtom said:

Are you writing about the need for current and new files?

No. I was writing about if you are willing to add your patches to our build repository so they get integrated into Armbian. The branches that should be worked on are sunxi-current (Linux 5.10.y) and sunxi-edge (at the moment 5.11.y).

 

Armbian heavily relies on community contributions because (human) resources are very limited

 

[olegoldtom]

Hello, Werner

 

11 часов назад, Werner сказал:

I was writing about if you are willing to add your patches to our build repository so they get integrated into Armbian.

 

I will try to figure out how to do this, but I have very little experience.

 

I will be very grateful if you can help add these changes to the Armbian build.

 

The changes have been tested and are working.

 

Oleg

Edited April 4, 2021 by olegoldtom

[Danny]

I had the same issue.

 

Created a PR: https://github.com/armbian/build/pull/2818

 

Thanks for the fix olegoldtom !!

 

 

[Igor]

8 hours ago, Danny said:

Created a PR

Thank you!! Merged.

[olegoldtom]

Many thanks to everyone!