[LinuxBIOS] Geode GX1/5530: How to forward SMI to a regular IRQ
Ronald G Minnich
rminnich at lanl.gov
Mon Aug 7 23:27:32 CEST 2006
Tim Crawford wrote:
> If I understand the question correctly Juergen want to tell the
> chipset to issue a IRQ not a SMI. There is no SMM code in LB.
>>>>Ronald G Minnich <rminnich at lanl.gov> 08/07/06 2:48 PM >>>
> Juergen Beisert wrote:
>>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?
apologies, I am really in 'slow mode' today.
we may need to write a stupid trampoline to get from smi to linux.
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