Messages in this thread | | | Date | Sat, 19 Jan 2002 18:21:07 +0100 | From | Sven <> | Subject | Re: [Linux-fbdev-devel] [PATCH] fbdev fbgen cleanup |
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On Fri, Jan 18, 2002 at 09:20:47AM -0800, James Simmons wrote: > > > > On to the massive fbdev cleanup. The second patch requires the first > > > patch. The first patch is the currcon one that I posted earlier. Every > > > > Mmm, what is the current status on all this. > > Right now the cleanup of the massive code duplication for the color map > handling is happening. I have fbgen.c compiled in by default for every > driver and I'm gradually moving everything over to it.
Ok, ...
> > How does the new fbdev api compare with ruby, is it the same thing or not, > > It pretty much is the same thing. The only difference will be hooks for > fb_read and fb_write. Some framebuffers like the i810 or the epson 1385 > are not the run of the mill linear framebuffers. So they need special > hooks. Also the addition of EDID/DDC and othe rrelated protocols. The > third difference will be something that has been discussed in public with > Scott from intel. At present most fbdev drivers reset the accel engine > even when you do something like increasing the refresh rate. This is not > needed. Most sane hardware has the timings seperate from the accel engine. > Now change the color depth or resolution does effect it. So that will be > cleared up.
Ok, ...
> > and how does the ruby tree compare with the -dj one ? > > I gradually placing the ruby stuff into the -dj tree. This way it gets > more testing. Plus I can see what is really a bug in ruby. For example > their is a nasty bug in the new console locking. So it has been removed > from the dj tree. I need to break it up more and slowly put it into place. > This way I can see what the problem is.
Ok, ...
> > And what is the current status of fbdev in 2.5.x ? 2.5.1 + ruby hang my box > > early in the boot process, but that is probably because pm3fb is not working > > yet for ruby. Does matroxfb work ? i have an older pci matrox board that i > > could install to test and do some pm3fb work if needed (and if i get the time > > for it :(((0 > > Only a hand full of drivers have truly been converted over in the console > CVS. The hanging is most likely due to the new console lock. I have > decided that the ruby tree will be used for code deposting and the DJ tree > will be the real testing ground.
Mmm, ...
So what is the best place to look at if one wants to do some driver work. Not that i really have that much time, but i may look into porting the pm3fb driver to the new scheme, but ruby + 2.5.1 hangs hopelessly for me, and if it is not the latest stuff around, it would not be the best place to work from.
Also, i suppose there is no documentation whatsoever yet, apart from the source and the mailing list archive here ?
Friendly,
Sven Luther - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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