Re: [Dri-devel] GATOS and DRI merge attempts

[Vladimir D. <vo...@mi...>]

On Mon, 16 Feb 2004, Hod McWuff wrote:

>
> OK, thanks for the info about Mesa... I'm building it now I expect to be
> testing it after 2300EST (after monday night stargate).
>
> Onto bigger and better issues... I've been picking through the Gatos and
> DRI 2D driver sources, trying to integrate the Gatos 2D changes cleanly.
> Getting the radeon_driver and radeon_video changes ported over should be
> merely tedious, and the atixv.c changes shouldn't be too much harder.
>
> However, I'm getting the feeling that there will be a *LOT* of duplicate
> code when I'm done, as there seems to be basic Xv support for Mach64
> already in the DRI CVS. I'm not sure how complete it is. Anyone have an
> old AIW Mach64 card running on DRI CVS? Gatos doesn't seem to have much
> Mach64 support.

This support is likely the result of porting of GATOS code to XFree86 CVS.
This is the way Marc Aurele wants it so other changes should be integrated
around it. It occurs to me that, for now, you could simply ignore atixv.c.

The I2C code for mach64 is the trickiest, with four (or more) separate
drivers.

However, AFAIK, the maximal possible amount of reuse already happens in
GATOS drivers - they the standard XFree86 i2c bus library.

>
> There really should be some design discussion about the Xv and I2C code
> before I get too far into this. Seems to me it's likely to be get a lot
> of reuse - there's already three different AIW setups to consider, not
> including anything R200 or newer. While I'm thinking of it, are there
> plans to support the most current chips? Or, is ATI being a pain in the
> butt and insisting on using their own driver?

Yes, but there are difficulties with initializing Rage Theatre 200 chips.
Does anyone on this list have documentation for RV250 ? It would help if
it had anything on VIP bus access, in particular in FIFO mode.

                       best

                         Vladimir Dergachev

>
> Thoughts, anyone?
>
>
>
>
>
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