Re: [PATCH 1/2] ARM: DTS: kirkwood-openrd-client: fix audio

On Jan 24, 2016, at 1:40 PM, Martin Michlmayr [off-list ref] wrote:

* Rick Thomas [off-list ref] [2016-01-24 12:56]:

quoted

quoted

It would be good to have a Tested-by: from Rick.

If someone will make a .deb I can download, I'll be happy to install
it and test it.  Please be explicit in describing what and how you
want tested.

Check your email. :)

-- 
Martin Michlmayr
http://www.cyrius.com/

Got it.

Looks like mmc works with that kernel.  I was able to mount /dev/mmcblk0p1 and read files from it.

Sound we have some progress:

root@base:~# ls -l /dev/snd
total 0
drwxr-xr-x 2 root root       60 Jan 24 18:23 by-path
crw-rw---- 1 root audio 116,  2 Jan 24 18:23 controlC0
crw-rw---- 1 root audio 116,  4 Jan 24 18:23 pcmC0D0c
crw-rw---- 1 root audio 116,  3 Jan 24 18:23 pcmC0D0p
crw-rw---- 1 root audio 116,  1 Jan 24 18:23 seq
crw-rw---- 1 root audio 116, 33 Jan 24 18:23 timer
root@base:~# cat /proc/asound/devices 
  2: [ 0]   : control
  3: [ 0- 0]: digital audio playback
  4: [ 0- 0]: digital audio capture
 33:        : timer
root@base:~# cat /proc/asound/cards   
 0 [i2scs42l51hifi ]: i2s-cs42l51-hif - i2s-cs42l51-hifi
                      i2s-cs42l51-hifi

Full of hope, I did "aptitude install mp321" which went without any visible problems.

Then hooked up a pair of earphones to the "speaker" plug on the Client and ran

root@base:~# mpg321 -v /tmp/Jersey.mp3 
High Performance MPEG 1.0/2.0/2.5 Audio Player for Layer 1, 2, and 3.
Version 0.3.2-1 (2012/03/25). Written and copyrights by Joe Drew,
now maintained by Nanakos Chrysostomos and others.
Uses code from various people. See 'README' for more!
THIS SOFTWARE COMES WITH ABSOLUTELY NO WARRANTY! USE AT YOUR OWN RISK!
Title	: The Jersey Bounce              Artist : Zazuzaz                       
Album	: An Evening with ZaZuZaz        Year	 : 2000
Comment : Amazon.com Song ID: 201809221  Genre : Jazz                          

Directory: /tmp
Playing MPEG stream from Jersey.mp3 ...
MPEG 1.0, Layer: III, Freq: 44100, mode: Joint-Stereo, modext: 0, BPF : 2560
Channels: 2, copyright: No, original: Yes, CRC: No, emphasis: 0.
Bitrate: 128 Kbits/s, Extension value: 0
Audio: 1:1 conversion, rate: 44100, encoding: signed 16 bit, channels: 2
ALSA lib pcm.c:2267:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front
^C                                                                            
[0:20] Decoding of Jersey.mp3 finished.

So it seemed to be running OK...  But there was no sound in the earphones.  I also tried adding option "-g 50" to set the gain explicitly.  Still no sound.

Is there a hardware jumper I need to set to activate sound on the OpenRD Client board?

Do I need to install another package? For example, "aptitude search '~i alsa'" gives no output, indicating, I believe, that there are no installed packages with "alsa" in their name.

The message:

ALSA lib pcm.c:2267:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front

seems suspicious.

Any thoughts?
Rick


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