Editing display driver

Hi,

I'll be using a PXA270 to support a QVGA display (LQ057Q3DC02 by
Sharp). What do I need to support this in Windows CE? I'm looking at
just editing one of the built-in drivers or even just using them
directly as is if possible.

Thanks!

Henrik
Tue Jan 03 12:58:28 CST 2006

I'm not familiar with the particular display you're referring to, but a
start would be to clone the pxa27x_lcd driver in the pxa27x CSP and go
from there.

Henrik Viklund

Safiiru
Tue Jan 03 15:29:05 CST 2006

Hi Henrik,

that seems like a lot of help. I been looking through it, and what
would be major differences I would need to implement? Can I just
change the parameters to match my display? (frequency, resolution,
depth)

Henrik
Tue Jan 03 16:22:21 CST 2006

Stating the obvious, you need to set it up so it suits your particular
hardware. It might be a simple matter of setting up the parameters in
the registry, but I doubt you'll get away that easy.

The driver contains code that is hard-coded for a couple of different
displays, so you probably have to add entries for your specific
display. See "ReadRegistryData()" and you'll see what I mean.
Unfortionatley, the display specific code also has found its way into
the XLLP layer, so you may also need to modify of xllp_lcd.

Henrik Viklund

Safiiru
Wed Jan 04 11:07:00 CST 2006

My head's spinning, thanks for pointing me in the right direction
Henrik I'll keep digging through that code.