[SeaBIOS] VGA Callback function in SeaBIOS

[Kevin O'Connor]

On Tue, Nov 22, 2011 at 05:39:07PM +0100, Wolfgang Kamp - datakamp wrote:
> Hi,
> 
> I want to implement a Callback Function (04E08H- System BIOS INT
> 15H) for the AMD Video vBIOS (ATOM BIOS Extension Functions) to
> support LVDS TFT Displays with AMD G-Series processors (Persimmon
> mainboard).  What is the best way to do this in SeaBIOS?

Take a look at src/vgahooks.c.  You'll want to extend that for your
board.

> I need some parameter like UMA base and size from Coreboot. How can
> I transfer this information from Coreboot to SeaBIOS?

As ruik mentions - coreboot is itself getting the info from somewhere
(eg, the hardware) - if it's not too hard to have seabios pull the
info directly that would be ideal.

-Kevin