dvbox - HP98730 ``DaVinci'' frame buffer
dvbox* at intio?
dvbox* at dio? scode ?
grf* at dvbox?
The HP98730 and HP98731 are stackable 4-bit color frame
known as the DaVinci. By adding up to 7 HP98732A frame
it is possible to add overlay planes.
The dvbox driver provides a frame buffer abstraction to the
and the associated ite(4) console framework.
The DaVinci can be configured at either the ``internal'' address (frame
buffer address 0x200000, control register space address
0x560000) or at
an external select code less than 32. At the internal address it will be
the ``preferred'' console device (see cons(4)). The hardware installation
manual describes the procedure for setting these values.
ioctl(2), gbox(4), grf(4), hyper(4), intro(4), rbox(4), topcat(4)
This driver has not been tested with all possible combinations of frame
buffer boards and scan boards installed in the device.
OpenBSD 3.6 March 16, 2003
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