NAME

sti - HP Standard Text Interface

SYNOPSIS

sti* at mainbus0 irq ? sti* at phantomas0 irq ? wsdisplay* at sti? console ?

DESCRIPTION

The sti was created by HP to provide uniform frame-buffer access operations for their 9000/300 and 9000/700 series of workstations.

The following models are supported (though not all features or frame buffer depths may be available):

Model Bits Mem 3D Machines/Cards
GRX 8g 2 SGC
CRX 8 2 SGC
Tomcat 8 2 SGC
Stinger 8 2 HP9000/7[12]5/74[257]i
Artist 8 2 HP9000/712/7[12]5/74[38]i
CRX-24 24 16 SGC
HCRX-8 8 2 GSC
HCRX-24 24 16 GSC
Visualize EG 16 2 HP B/C-class, GSC/PCI

Implementation consists of a set of functions burnt in to the PROM on the card and providing the following set of functions (see below for PROM revision history on functions supported by particular PROM revision):

There are two modes for accessing the PROM: ``byte'' and ``word'' mode. In ``byte'' mode each 4-byte word contains only the low-ordered big-endian byte of data; i.e., to compose one word of data 4 words should be read and low-ordered bytes of those should be shifted correspondingly. In ``word'' mode each word contains all 4 bytes of valid data.

PROM revision history:

8.02
Original release.
8.03
8.04
8.05
8.06
8.08
8.09
8.0a
PCXL2 and PCXU dual PCI EPROM map mode, implemented on VisualizeEG.
8.0b
Support for HP-UX non-implicit locking DMA, implemented on VisualizeFXE.
8.0c
sti_util function added (flashing under HP-UX and other sideband traffic).
8.0d
Colour frame buffer support.

SEE ALSO

intro(4), phantomas(4), wsdisplay(4)

HISTORY

The sti driver was written by Michael Shalayeff <mickey@openbsd.org>
for HPPA port for OpenBSD2.7.

BUGS

Currently, neither scroll back nor screen blanking functions are implemented.