Re: clgenfb.c and i386 (Cirrus Logic FB)
Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
Thu, 19 Nov 1998 09:53:22 +0100 (CET)
On 18 Nov 1998, Jes Sorensen wrote:
> >>>>> "Martynas" == Martynas Kunigelis <mkunigelis@alna.lt> writes:
> Martynas> Richard A Nelson wrote:
> >> I see that clgenfb.c isn't supported for i386 arch ;-{
>
> Martynas> The same unfortunately holds true for many cards, S3 Virge
> Martynas> in my case. There is virgefb.c, but not for i386 :(
>
> Martynas> How much effort is required to "backport" the drivers? IIRC,
> Martynas> most of the depend on the firmware to set the initial
> Martynas> graphics mode, which is of no help on PC.
>
> The current virgefb is just a hack to allow people to use the card as
> a framebuffer after the video mode has been set by the boot `firmware'
> if you like. The driver really needs someone who cares to sit down and
> write the part of the code that initialised the gfx modes.
Fortunately display initialization for the ViRGE and Trio are very similar.
It's the acceleration engine that differs a lot. So S3Triofb/cyberfb and
virgefb can share some code.
Greetings,
Geert
--
Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP} http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium
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