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New reworked driver for Wolfson/Cirrus Logic audio card

hiassoft

I've been working on a driver rework, mainly to get rid of the requirement to carry around a bunch of patches to upstream driver code, and also to fix some outstanding issues and introduce some new features.

 

Most issues have been ironed out so here's the first public release.

 

Edit: the driver has been included in official RPi kernels. Just run sudo rpi-update to install it.

You still have to install the mixer scripts and add the /etc/modprobe.d file. See my website for details

RPi Linux driver for Wolfson / Cirrus Logic Audio Card

 

Source: https://github.com/HiassofT/rpi-linux/tree/cirrus-ng-4.9.0

Precompiled kernel: http://www.horus.com/~hias/tmp/cirrus/cirrus-ng-linux-4.9.0.tgz

New mixer scripts: http://www.horus.com/~hias/tmp/cirrus/cirrus-ng-scripts.tgz

 

Important notes:

  • The new driver bases on the rather fresh kernel 4.9.0 which means there's some risk of (yet unknown) issues. Use it at your own risk and please run "rpi-update" to get the latest firmware before installing the new driver.
  • The soundcard name has been changed from "snd_rpi_wsp" to "RPi-Cirrus", also several ALSA controls have been removed and new ones were added. This means the old usecase scripts and any custom-made scripts will no longer work. Use the new mixer scripts instead of the old usecase/listen scripts.
  • The new driver supports setting (and receiving) of the S/PDIF channel status bits (aka AES bits). If you add an ALSA card configuration file this means applications like Kodi can do proper AC3/DTS passthrough. A sample card configuration file (plus the mixer scripts) can be found here: https://github.com/HiassofT/rpi-cirrus-config
  • I haven't fully updated the documentation on my website RPi Linux driver for Wolfson / Cirrus Logic Audio Card  yet, will do that during the next weeks/months. But except for the things noted above most stuff should still work as in previous driver versions.

 

Please report back if you tested the driver (either successfully or unsuccessfully), any feedback will help me!

 

so long,

 

Hias

Parents

  • Hi Matthias

     

    Came across your updated kernel, etc and so pleased that it seems to offer new possibilities for my Wolfson Card.

     

    I am not sure which version I have of the Wolfson Card - but it is attached to a Raspberry Pi Model B rev. 2.

    This combination has been working fine with a version of Squeezeplug loaded onto another SD.

    What prompted me to look into your kernel is the hope that I can combine the Wolfson card with the Rpi and hopefully then add Airplay receiver function

     

    I am using Raspbian Stretch, with updated kernel in line with your instructions but seem to have trouble with the use case scripts - I am very much a beginner and don't really understand code, but the scripts after downloading seem to be 'empty'

    When I try to activate them through terminal nothing seems to happen.

     

    I have compared them to some former scripts for the card which have many more lines, and from memory activating these scripts seems to produce lots of lines of text below the terminal command..

     

    Any help you can offer would be gratefully received...

     

    Many thanks

    Andrew

     

     

    These are the details of the current system:

     

    https://pastebin.com/jEBGEB1y

     

    https://pastebin.com/VzbRj8Ai

     

    https://pastebin.com/8CSU6fiE

     

    https://pastebin.com/U7tB7eYc

     

    https://pastebin.com/qhJnEzUm

     

    https://pastebin.com/dbZN03g7

     

     

    An examples of the scripts:

     

    #!/bin/sh

     

    MYDIR=$(dirname "$0")

    . "${MYDIR}/rpi-cirrus-functions.sh"

     

    playback_to_headset

     

Reply

  • Hi Matthias

     

    Came across your updated kernel, etc and so pleased that it seems to offer new possibilities for my Wolfson Card.

     

    I am not sure which version I have of the Wolfson Card - but it is attached to a Raspberry Pi Model B rev. 2.

    This combination has been working fine with a version of Squeezeplug loaded onto another SD.

    What prompted me to look into your kernel is the hope that I can combine the Wolfson card with the Rpi and hopefully then add Airplay receiver function

     

    I am using Raspbian Stretch, with updated kernel in line with your instructions but seem to have trouble with the use case scripts - I am very much a beginner and don't really understand code, but the scripts after downloading seem to be 'empty'

    When I try to activate them through terminal nothing seems to happen.

     

    I have compared them to some former scripts for the card which have many more lines, and from memory activating these scripts seems to produce lots of lines of text below the terminal command..

     

    Any help you can offer would be gratefully received...

     

    Many thanks

    Andrew

     

     

    These are the details of the current system:

     

    https://pastebin.com/jEBGEB1y

     

    https://pastebin.com/VzbRj8Ai

     

    https://pastebin.com/8CSU6fiE

     

    https://pastebin.com/U7tB7eYc

     

    https://pastebin.com/qhJnEzUm

     

    https://pastebin.com/dbZN03g7

     

     

    An examples of the scripts:

     

    #!/bin/sh

     

    MYDIR=$(dirname "$0")

    . "${MYDIR}/rpi-cirrus-functions.sh"

     

    playback_to_headset

     

Children
  • in reply to northdown

    Hi Andrew!

     

    The logs you posted look fine and so does the "Playback_to_Headset.sh" script you posted. The old scripts were very noisy (for no reason), the new scripts are quiet and will only annoy you with output if something fails.

     

    So, everything looks fine IMO.

     

    BTW: in the new scripts I moved all the functionality to the rpi-cirrus-functions.sh helper "shell library", the other scripts like Playback_to_Headset.sh just call helper functions from that "library". You can also use the helper functions in there in your own scripts if you want to setup some advanced configurations.

     

    so long,

     

    Hias