Hell has frozen over ( well, shark hell at least )

[Michael <macallan%netbsd.org@localhost>]

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Hello,

I finally got around to start working on an Xorg driver for the IGS  
CyberPro 20x0 family found in rev. 5 Sharks, Netwinder etc. -  
currently the driver is built only on shark and supports only the VL  
variant found there. Adding support for PCI chips is trivial though,  
just needs extra probing.
The driver supports autoconfiguration ( X -configure should yield  
something almost usable, only DefaultDepth needs to be adjusted ),  
basic acceleration etc. but there is currently no support at all for  
video mode programming - it will use whatever it finds, so it more or  
less depends on igsfb to do the dirty work. I have mode setting code  
for igsfb and one of this year's Summer of Code projects involved a  
mode setting API so I'm going to wait for the API to hit the tree,  
then use it here.
It is not enough to just grab the xf86-video-igs driver from  
tomorrow's autobuild, you will also need a new kernel, mostly because  
igsfb wouldn't let you mmap the whole aperture or IO space - had to  
add a callback mechanism similar to the one used in vga since the  
weird ARM bus_space implementation doesn't really support  
bus_space_mmap() ( shark's bus space handles contain no physical  
addresses for example )
A hardware cursor is supported but it still uses ioctl()s instead of  
using the hardware directly.

With this we finally have accelerated X on all sharks again.

have fun
Michael

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