[haiku-development] Re: CMedia driver
- From: Rob Judd <haiqu@xxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Thu, 14 May 2009 21:58:21 +1000
Axel Dörfler wrote:
Rob Judd <haiqu@xxxxxxxxxx> wrote:
Oops, looks like we need some kernel support for ISA memory here.
I thought this was a PCI driver? Are you sure there are any actual
limits imposed by that chip?
The current driver appropriates a small chunk of ISA memory for DMA.
Here's a comment from the cm.c file:
/* We use the SV chip in ISA DMA addressing mode, which is 24 bits */
/* so we need to find suitable, locked, contiguous memory in that */
/* physical address range. */
Rob
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