Hardware support for AMD Geode CS5536 audio?

Lionel Flandrin simias.n at gmail.com
Sun Nov 30 14:57:40 PST 2008


On Wed, Nov 26, 2008 at 07:30:41PM -0800, ancelgray wrote:
> 
> To AMD CS5536 users:
> 
> This is Andrew Gray.  I have finished the audio driver for the AMD CS5536
> companion
> chip. It is working on a  PC Engines Alix 1C low power board under FreeBSD
> 7.0.  
> It can be found at:
> 
> http://modelofreality.org/snd_amd5536.html
> 
> Let me know how it goes.

  I own a fitpc[1] that runs an AMD Geode CPU with the AMD CS5536
chip. I followed the README (kldloaded the module, ran the two sysctl)
and everything seemed to work fine:
 - As soon as I loaded the module I got (in the system messages):
pcm0: <AMD CS5536> port 0xd400-0xd47f irq 10 at device 15.3 on pci0
pcm0: [ITHREAD]
pcm0: <Wolfson WM9711/12 AC97 Codec>

 - cat /dev/sndstat says:
FreeBSD Audio Driver (newpcm: 32bit 2007061600/i386)
Installed devices:
pcm0: <AMD CS5536> at io 0xd400 irq 10 kld snd_cs5536 [MPSAFE] \
(2p:0v/1r:0v channels duplex default)

  However if I try to play something with mpg123 I get no sound and
"pcm0: bm0 bus master error" every half second or so in the system
messages.

Please tell me if there's anything else I can provide to help you.

[1] http://www.fit-pc.com/new/fit-pc-1-0-specifications.html

Cheers,
-- 
Lionel Flandrin


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