Re: [Alsa-devel] Re: RFC: OSS driver removal, a slightly different approach

From: Takashi Iwai
Date: Fri Jan 20 2006 - 09:22:12 EST


At Fri, 20 Jan 2006 13:14:58 +0000,
Alan Cox wrote:
>
> On Gwe, 2006-01-20 at 11:20 +0100, Takashi Iwai wrote:
> > BTW, I remember that there was a driver for native geode audio support
> > at the time of ALSA 0.5.x or earlier. I must have the code somewhere
> > in my storage. The porting would be much much harder than kaulha (sb
> > emulation), though.
>
> The two drivers cover different versions of the Kahlua firmware. VSA1
> was the original (at least AFAIK) firmware block. It provides SB16
> emulation but has no hooks for drivers to 'take over' properly as you
> really want to hook into SMI. VSA2 (the next gen firmware) had various
> changes and differences and Cyrix long ago released a rather icky but
> working 'native' driver for that.
>
> I have the Cyrix public and most of the earlier NDA documentation if
> there are questions but I can't redistribute it.

The datasheet of CS5530A can be easily found on web, but not sure
whether it contains enough details since I've not looked throught
it.


Takashi
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