real mode entry points for PCI BIOS
flat view
From: Jon Smirl <hidden>
Date: 2003-03-12 02:42:24
http://www.delorie.com/djgpp/doc/rbinter/ix/1A/B1.html The class for video displays is 3 It should be possible to make this work. Do you have a PCI video card that you can install along with an AGP one? Future PCI-X allows as many video cards as you want so we need something along these lines. This would also solve a lot of problems in framebuffer development. The reset program I sent earlier shows how to disable VGA ports and copy INT vectors, etc. It also shows how to enable the ROMs (writing to PCI config space). Video ROMs needs to be copied to RAM before being executed or they won't run. The BIOS did this to the primary adapter's ROM for you. Is it possible to allocate an entire page for DDC info? At 512 bytes that would support eight video cards. When the framebuffer driver loads how is it going to find the page with the DDC info? How does it know which info goes to which card? This approach should work crossplatform. The equivalent code will need to be written for each architecture. ===== Jon Smirl jonsmirl@yahoo.com __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - establish your business online http://webhosting.yahoo.com ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en