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Re: HPDI register mapping
- To: Mailing List Recipients <firstname.lastname@example.org>
- Subject: Re: HPDI register mapping
- From: email@example.com (Roy Gwinn)
- Date: Wed, 1 Apr 1998 11:23 +0100 (BST)
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- In-Reply-To: <36CA1104.DBA60540@acres.com.au>
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- Resent-Date: Thu, 1 Apr 1999 03:01:13 -0800
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> I have written appropriate addresses to these to
> try to map the registers to CPU address space.
You shouldn't change the contents of the BAR's. The PCI BIOS sets it up.
( you are allowed to poke FF's if you need to discover the extent of the
allocation, so long as you put it back how it was. )
The addresses in BAR's are physical addresses. For 86 family, you need to
map the physical address into linear address space before the processor can
see it. Call DPMI.