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.\" $OpenBSD: sti.4,v 1.14 2004/06/08 02:54:53 mickey Exp $
.\"
.\" Copyright (c) 2001 Michael Shalayeff
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
.\" SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
.\" THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd May 11, 2001
.Dt STI 4
.Os
.Sh NAME
.Nm sti
.Nd HP Standard Text Interface
.Sh SYNOPSIS
.Cd "sti* at mainbus0 irq ?"
.Cd "sti* at phantomas0 irq ?"
.\" .Cd "sti* at pci? device ? function ?"
.Cd "wsdisplay* at sti? console ?"
.Sh DESCRIPTION
The
.Nm
was created by HP to provide uniform frame-buffer access operations
for their 9000/300 and 9000/700 series of workstations.
.Pp
The following models are supported
(though not all features or frame buffer depths may be available):
.Bl -column "Visualize FX10pro" "Bits" "Mem" "3D" "machines" -offset left
.It "Model" Ta "Bits" Ta "Mem" Ta "3D" Ta "Machines/Cards"
.\" .It "Timber" Ta "8" Ta "2" Ta "" Ta "HP9000/705/710"
.It "GRX" Ta "8g" Ta "2" Ta "" Ta "SGC"
.It "CRX" Ta "8" Ta "2" Ta "" Ta "SGC"
.It "Tomcat" Ta "8" Ta "2" Ta "" Ta "SGC"
.It "Stinger" Ta "8" Ta "2" Ta "" Ta "HP9000/7[12]5/74[257]i"
.It "Artist" Ta "8" Ta "2" Ta "" Ta "HP9000/712/7[12]5/74[38]i"
.It "CRX-24" Ta "24" Ta "16" Ta "" Ta "SGC"
.\" .It "CRX-24Z" Ta "24" Ta "16" Ta "y" Ta "SGC"
.\" .It "CRX-48Z" Ta "24" Ta "16" Ta "y" Ta "SGC/GSC"
.It "HCRX-8" Ta "8" Ta "2" Ta "" Ta "GSC"
.\" .It "HCRX-8Z" Ta "8" Ta "2" Ta "y" Ta "GSC"
.It "HCRX-24" Ta "24" Ta "16" Ta "" Ta "GSC"
.\" .It "HCRX-24Z" Ta "24" Ta "16" Ta "y" Ta "GSC"
.\" .It "Visualize 8" Ta "8" Ta "2" Ta "y" Ta "GSC"
.It "Visualize EG" Ta "16" Ta "2" Ta "" Ta "HP B/C-class, GSC/PCI"
.\" .It "Visualize 24" Ta "24" Ta "16" Ta "y" Ta "GSC"
.\" .It "Visualize 48" Ta "24" Ta "16" Ta "y" Ta "GSC"
.\" .It "Visualize 48XP" Ta "24" Ta "16" Ta "y" Ta "GSC"
.\" .It "Visualize FXE" Ta "24" Ta "24" Ta "y" Ta "PCI 32/66"
.\" .It "Visualize FX2" Ta "24" Ta "24" Ta "y" Ta "PCI 64/66"
.\" .It "Visualize FX4/FX6" Ta "24" Ta "32" Ta "y" Ta "PCI 64/66"
.\" .It "Visualize FX5pro" Ta "24" Ta "64" Ta "y" Ta "PCI 64/66"
.\" .It "Visualize FX10pro" Ta "24" Ta "128" Ta "y" Ta "PCI 64/66"
.El
.Pp
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):
.Pp
.Bl -bullet -compact
.It
Initialize graphics.
.It
State management.
.It
Print a character onto the screen using currently selected font.
.It
Copy a region of the frame-buffer to another location.
.It
Self testing.
.It
Exception handling.
.It
Frame-buffer configuration enquiry.
.It
Setting colour-map entry.
.It
DMA parameters.
.It
Flow control.
.It
User timing.
.It
Processing management.
.It
Miscellaneous utility functions.
.El
.Pp
There are two modes for accessing the PROM:
.Dq byte
and
.Dq word
mode.
In
.Dq 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
.Dq word
mode each word contains all 4 bytes of valid data.
.Pp
PROM revision history:
.Bl -tag -width "00.00" -compact
.It 8.02
Original release.
.It 8.03
.Bl -bullet -compact
.It
OSF-extended self test (a.k.a fast).
.It
Restore display.
.El
.It 8.04
.Bl -bullet -compact
.\" global cfg
.\" rename global cfg ext
.\" global cfg ext
.It
Implement
.Nm curr_mon
function.
.It
Graphical boot screen.
.\" sti_mem_addr
.\" dd
.\" word mode
.\" num mons
.\" mon tbl
.\" user data
.\" sti mem req
.\" user data size
.\" maxtime
.\" mon tbl desc struct
.\" init_inptr
.\" rename init_inptr_ext
.\" init_inptr_ext
.\" config mon type
.\" cmt change
.\" font unpmv
.\" non text
.It
Implement
.Dq block move .
.\" non-text
.It
Implement
.Dq set colour-map entry .
.Nm
Implement word mode.
.It
Support for multiple monitors.
.It
Support
.Nm user_data
.Nm
space usage.
.It
Support for extra memory.
.It
Support for
.Nm Windows NT (tm) .
.It
Monitor frequency reference.
.It
Early console.
.It
Support added for: PCXL,
.Nm GSC
bus, ROM-less operation.
.El
.It 8.05
.Bl -bullet -compact
.It
Interrupt support.
.It
Report card's power usage.
.It
Birds of Prey.
.It
User interrupts.
.El
.It 8.06
.Bl -bullet -compact
.It
Multiple fonts.
.It
Monitor table descriptor strings.
.It
PCXL2 and PCXU monitor descriptors.
.El
.It 8.08
.Bl -bullet -compact
.It
HP-UX 10 support for Visualize FX
.It
.Nm dma_ctrl
function added.
.It
.Nm flow_ctrl
function added.
.It
.Nm user_timing
function added.
.El
.It 8.09
.Bl -bullet -compact
.It
Addition changes for
.Nm Visualize FX
due to rearchitecture for performance.
.It
.Nm process_mgr
function added.
.El
.It 8.0a
PCXL2 and PCXU dual
.Nm PCI
EPROM map mode, implemented on
.Nm Visualize EG .
.It 8.0b
Support for HP-UX non-implicit locking DMA, implemented on
.Nm Visualize FXE .
.It 8.0c
.Nm sti_util
function added (flashing under HP-UX and other sideband traffic).
.It 8.0d
Colour frame buffer support.
.El
.Sh SEE ALSO
.Xr intro 4 ,
.Xr phantomas 4 ,
.Xr wsdisplay 4
.Pp
.Rs
.%T Standard Text Interface For Graphics Devices
.%N Revision 8.13
.%D March 1, 2000
.%I Hewlett-Packard
.Re
.Sh HISTORY
The
.Nm
driver was written by
.An Michael Shalayeff Aq mickey@openbsd.org
for HPPA
port for
.Ox 2.7 .
.Sh BUGS
Currently, neither scroll back nor screen blanking functions
are implemented.
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