PNINEK(4)             OpenBSD Programmer's Manual (SPARC)            PNINEK(4)

NAME
     pninek - Weitek Power9000 accelerated frame buffer

SYNOPSIS
     btcham0 at obio?
     pninek0 at sbus?
     wsdisplay* at pninek?

DESCRIPTION
     The pninek is a color frame buffer with graphics acceleration, embedded
     in the Tadpole SPARCbook 3 laptop.  It is based on the Weitek Power9000
     video processor and a Brooktree Bt445 `Chameleon' RAMDAC.

     Due to specifics of the video hardware on the Tadpole SPARCbook 3, the
     complete driver is split in two parts:

           btcham  RAMDAC interface
           pninek  Video controller interface

     The combination of both btcham and pninek drivers interfaces the frame
     buffer with the wscons(4) console framework.  They do not provide direct
     device driver entry points but make their function available via the in-
     ternal wsdisplay(4) interface.

     If the tctrl(4) device is also configured, the pninek will be powered
     down when the lid of the laptop is closed or the screen is blanked.

SEE ALSO
     intro(4), sbus(4), wscons(4), wsdisplay(4)

BUGS
     There is currently no way to switch back and forth from the onboard dis-
     play to the external connector.

     It is not possible to change display resolution.

     Acceleration code does not work correctly, and is therefore disabled.

OpenBSD 4.7                     March 31, 2008                               1
