NAME
sti —
HP Standard Text Interface
SYNOPSIS
sti* at mainbus0
sti* at phantomas?
sti* at pci?
wsdisplay* at sti?
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 |
EVRX |
8 |
2 |
|
HP9000/425e |
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 |
Visualize FXE |
24 |
24 |
y |
PCI 32/66 |
Visualize FX2 |
24 |
24 |
y |
PCI 64/66 |
Visualize FX4/FX6 |
24 |
32 |
y |
PCI 64/66 |
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):
- Initialize graphics.
- State management.
- Print a character onto the
screen using currently selected font.
- Copy a region of the
frame-buffer to another location.
- Self testing.
- Exception handling.
- Frame-buffer configuration
enquiry.
- Setting colour-map
entry.
- DMA parameters.
- Flow control.
- User timing.
- Processing management.
- Miscellaneous utility
functions.
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
-
- OSF-extended self test
(a.k.a fast).
- Restore display.
- 8.04
-
- Implement
curr_mon function.
- Graphical boot
screen.
- Implement “block
move”.
- Implement “set
colour-map entry”. sti Implement word
mode.
- Support for multiple
monitors.
- Support
user_data sti space usage.
- Support for extra
memory.
- Support for
Windows NT (tm).
- Monitor frequency
reference.
- Early console.
- Support added for: PCXL,
GSC bus, ROM-less operation.
- 8.05
-
- Interrupt support.
- Report card's power
usage.
- Birds of Prey.
- User interrupts.
- 8.06
-
- Multiple fonts.
- Monitor table descriptor
strings.
- PCXL2 and PCXU monitor
descriptors.
- 8.08
-
- HP-UX 10 support for
Visualize FX
- dma_ctrl
function added.
- flow_ctrl
function added.
- user_timing
function added.
- 8.09
-
- Addition changes for
Visualize FX due to rearchitecture for
performance.
- process_mgr
function added.
- 8.0a
- PCXL2 and PCXU dual PCI EPROM map mode,
implemented on Visualize EG.
- 8.0b
- Support for HP-UX non-implicit locking DMA, implemented on
Visualize FXE.
- 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)
Standard Text Interface For Graphics
Devices, Hewlett-Packard, Revision
8.13, March 1, 2000.
HISTORY
The
sti driver was written by
Michael
Shalayeff
<
mickey@openbsd.org>
for HPPA port for
OpenBSD 2.7.
BUGS
Currently, neither scroll back nor screen blanking functions are
implemented.