[LinuxBIOS] Geode GX1/5530: How to forward SMI to a regular IRQ

Ronald G Minnich rminnich at lanl.gov
Mon Aug 7 22:48:54 CEST 2006

Juergen Beisert wrote:
> Hi all,
> On Monday 07 August 2006 11:19, myself wrote:
>>I try to write a native sound driver for the Geode GX1/5530a Companion
>>chip. Problem here: The sound chip only generates SMI. Does anyone knows a
>>trick or a chipset switch that let me forward this SMI to a regular IRQ?
>>Its too ugly to use a polling loop.... ;-)
> Sorry. I think I must explain: I'm using linuxbios on this Geode system, so 
> there is no SMM emulation of the sound hardware. Thats why I'm searching for 
> a solution to forward the SMI to a regular IRQ. Has someone experience in 
> programming this SMM code? Maybe a short routine that only triggers a regular 
> interrupt when an SMI occures would help.

Is there some reason to continue to use SMI? why not just drive the 
hardware directly w/o smi?


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