Cirrus Logic Audio Card working on the Raspberry Pi 2

Hi Ragnar!

Thank you for uploading, last night i installed the patch and changed the kernel comment.
After that the system booted succesfully with a new kernel, and im playing with some 24bit-192khz flacs,
its seems ok, but it would be better if i have a test file. If you could generate some sine wave

files with different samplerates and bit depth i will try it with a freq. analiser at the end of the amp. chain.

Or do you have a better idea for easy testing?

If there is a terminal command or software to generate the sine waves, i will generate it on my own, with a little help.

Thanks a lot!

Viktor

I forget that, i test it with a timer, 20seconds of playing (kodi showing the elapsed play time) it seems really 20seconds
measured by the timer on my phone. It will be more precise if i measure the whole track play time, i know, but it was really
late..:)

Viktor

If there is a terminal command or software to generate the sine waves, i will generate it on my own, with a little help.

You can do this with sox (just do an "apt-get install sox" if you don't have it installed).

For example: stereo 16-bit WAV at 44.1kHz samplerate with a 10 second 440Hz tone at -3dB:

sox -n -c 2 -r 44100 -b 16 440-cd.wav synth 10 sin 440 gain -3

Change the -r and -b options for different samplerates / bits per sample.

so long,

Hias

Hi,

Ok, thanks, i will reply if i have any news.

Viktor

Hi!

Good news, it seems perfect:)
I was generated 3samples
44100 16
48000 24
96000 24

these are the regular formats for high quality coded flacs from the russians:)pl

Installed freq analizer on my phone and it tells 441Hz for the 440Hz sample, so i think
its okay, anyway i not recognized the wa-wa thing after i installed the patch.

If i have some time i will make some test with the old config just for sure.

Thanks!!

Viktor

I've build a RT kernel using the Cirrus kernel git repo and I'm getting this Unknown device ID message too:

[    4.886573] bcm2708_spi 3f204000.spi: master is unqueued, this is deprecated
[    4.986252] arizona spi0.1: Unknown device ID: 0
[    5.034386] bcm2708_spi 3f204000.spi: SPI Controller at 0x3f204000 (irq 80)
[    5.047637] bcm2708_i2c_init_pinmode(1,2)
[    5.053591] bcm2708_i2c_init_pinmode(1,3)
[    5.276372] bcm2708_i2c 3f804000.i2c: BSC1 Controller at 0x3f804000 (irq 79) (baudrate 100000)
[    5.586988] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[    5.909683] systemd-journald[104]: Received request to flush runtime journal from PID 1
[    6.271667] snd-rpi-wsp sound: ASoC: CODEC DAI wm5102-aif1 not registered
[    6.280661] snd-rpi-wsp sound: Failed to register card: -517
[    6.288491] platform sound: Driver snd-rpi-wsp requests probe deferral

So I guess I'm missing something. ragnar.jensen how did you build the kernel? Apparently you used make deb-pkg but doesn't the kernel need to be run through mkknlimg? Care to share a recipe so others can build their own kernels too? Thanks in advance!

Yes, I use mkknlimg to put the device-tree "tail" on the kernel file.

"make deb-pkg" uses the compressed kernel zImage, so I just rename it and then have mkknlimg create a new zImage from it, with the tail added.

make menuconfig
make -j8
make -j8 modules
pushd arch/arm/boot/
mv zImage zImage.org
mkknlimg zImage.org zImage
rm zImage.org
popd
KBUILD_DEBARCH=armhf make deb-pkg

--

Ragnar

Awesome! Thanks! Now I've got a nice deb package of my RPi kernel. And I got it to work, needed to add CONFIG_REGULATOR=y and then CONFIG_REGULATOR_FIXED_VOLTAGE=m  and CONFIG_REGULATOR_ARIZONA=m.

root@rpi-jessie:~# uname -a
Linux rpi-jessie 3.18.9-rt5-v7-cirrus #1 SMP PREEMPT RT Thu Apr 16 20:50:14 CEST 2015 armv7l GNU/Linux
root@rpi-jessie:~# cat /proc/asound/cards
 0 [sndrpiwsp      ]: snd_rpi_wsp - snd_rpi_wsp
                      snd_rpi_wsp

As you can see I'm using plain Debian, from what I've understood that should perform a bit better than Raspbian. And I'm cross-compiling so I had to adapt the steps a bit.

Hi Ahmed,

If you use HDMI to your Onkyo receiver,  you do not need to follow any of the CLAC specific setups, nor the card.

I recommend you look at ready to run image for Kodi, : Xbian. It allowed me to use HDMI sound output withouth too much work

If you want a headless music player look at TUTORIAL: Installing Squeezelite player on Raspbian | Squeezing a Raspberry Pi

if you read gerrelts tutorials you will be able to set the output of Squeezelite to the 1) Standard Raspi Analogue port ( fair but not hifi ) 2) HDMI ( but not together with Kodi running )

or the CLAC as discussed in this forum. Hint:  SL_SOUNDCARD="sysdefault:CARD=sndrpiwsp" in /usr/local/bin/squeezelite_settings.sh

I might experiment on Xbian and this Raspi 2B CLAC kernel later. But for me Kodi is not the preferred Audio renderer.

Regards Marcel

Marcel:

I did not like the sound out of the box on the HDMI and Onkyo, but I have not done any kind of optimization either.  The sound was kind of boomy and did not have any body to it  I will look at your suggestion for another RPI2 iplmementation, that I will do for another Denon AVR-X2000.  I am not advanced user of Linux, so I had issues using Kodi, when I do remote desktop using XRDP.  So my current setup is MPD/MediaPlayer/BubbleUpnp on RPI2, BubbleUPnP on Notes 2 and then SPDIF connection from CLAC to Onkyo.  The sound is richer.  It still is lacking compared to my 2.1 audiophile setup that I have using a win2012r2/AO/Foorbar2k -> Cambridge Audio Dac Magic Plus -> Adcom.  But I think Raspberry PI can be further improved as I get to learn more from you advanced folks.  Thanks for your note.

Ahmed