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From: Kumar Gala <galak@kernel.crashing.org>
Subject: Re: Audigy SE / ca0106 driver for PowerPC?
Date: Wed, 31 Jan 2007 08:52:47 -0600
To: rmcguire@videopresence.com
Cc: linuxppc-embedded@ozlabs.org
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On Jan 31, 2007, at 6:14 AM, Russell McGuire wrote:

> All,
>
> I recently tried to plugin and use an Audigy SE PCI card with  
> 2.6.20 and
> noticed that it would lock up during driver registration.
>
> After a little digging, I found that the interrupt routine and a  
> few other
> functions are relying on the x86 inl() / outl() to read from the  
> sound card.
>
> Is anyone aware of a PPC port for this driver? Or if it would be  
> feasible? I
> haven't ported a driver between architectures before.
>
> Or does the inl() / outl() already have PPC equivalent functions  
> and I need
> to be looking for a PCI configuration problem with my system?

We implement these on PPC.  Clearly we don't have x86 style port IO,  
usually its handled by memory mapped access to a special region of  
memory that will be converted into a PCI IO space access.

- k