Re: Hardware specs?

["Michel Dänzer" <michel@daenzer.net>]

On Wed, 2005-08-17 at 17:00 +0100, Keith O'Conor wrote: 
> 
> Up until now I've been only developing graphics applications, so alot of 
> these things are new to me - pixel clocks, horizontal timings, PLL, MTRR 
> etc.etc.... it's all quite overwhelming. I've been reading as much as I 
> can, but there are still big gaps in my understanding - how did everyone 
> else get up to speed in this area?

I did it basically the way you're doing it, by reading and tweaking
code. :)


> My main problem is that although it's fairly easy to follow the radeonfb 
> source and the fb in general, when it comes to what register does what 
> I'm completely lost. Did the people who wrote the driver have technical 
> specs from ATI telling them which did what? 

Some of us do, yes.

> Are the specs openly available, only under NDA, or not at all?!

Only under NDA, and I'm afraid it's hard to get them even under that
ATM. Your best way forward might be to ask specific questions about
existing code.


-- 
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer


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