Re: SM501 framebuffer driver

On Fri, Oct 06, 2006 at 07:25:54PM +0200, Clemens Koller wrote:

Hello, Bill,

quoted

Sorry about starting a new thread, but I was referred to this 
list/thread by a colleague just a few minutes ago.  (OT: it isn't in the 
archives in SF, either!).

Okay, fine! I'll be glad to join the party because we are using the SM501
on PCI of an MPC8540 embedded PowerPC.

I'm using an ARM board. The CPU is an Atmel AT91RM9200, and the SM501 is 
connected to it via a CPLD.

quoted

I hate to play "me too!", but I also have an SM501 framebuffer driver in 
a partial state of development.  I'd love to collaborate with others to 
get a good version pushed upstream.

Great! Where shall we collect the code?
I have some 

- a working fb driver kernel module
	(I did lots of code cleanup, but still needs a lot)

Me too here :) My changes to the original sm501 fb driver include:
 - Use dev_dbg instead of custom macro
 - video= command line parsing
 - Better checking in check_var
 - Started to implement setcolreg and panning, not finished
 - Removed duplicated code
 - Tried to make code more readable :)
 - Maybe something else (I didn't keep track

I also started to write an ALSA driver for the audio part. I wrote the 
basic driver skeleton, and my next step was going to be the 8051, but 
then I got distracted by other stuff. My plan was to start off with some 
very simple code for the 8051 which would just issue an interrupt at 
some interval so I could just see how the CPU<->8051 communication 
works. I'll try dig up the code in case someone wants to take a look.

Like I mentioned in the other thread I also wrote a DirectFB gfxdriver. 
It does basic blitting and filling for now. I tried to make it draw 
lines too but that caused the chip to lock up, and I tried to use alpha 
bleded blits but those seem to make the chip really sluggish to respond.

-- 
Ville Syrjälä
syrjala@sci.fi
http://www.sci.fi/~syrjala/

-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV