181 lines
4.1 KiB
Groff
181 lines
4.1 KiB
Groff
.\"-
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.\" Copyright (c) 2002 Jason L. Wright (jason@thought.net)
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.\" Copyright (c) 2005, 2006 Marius Strobl <marius@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\" from: OpenBSD: creator.4,v 1.20 2005/03/05 01:48:59 miod Exp
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.\" $FreeBSD$
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.\"
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.Dd September 2, 2006
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.Dt MACHFB 4 sparc64
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.Os
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.Sh NAME
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.Nm machfb
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.Nd "accelerated color frame buffer"
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.Sh SYNOPSIS
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.Cd "device machfb"
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.Sh DESCRIPTION
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The
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.Tn ATI Mach64
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family of chips are color frame buffers with graphics acceleration.
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The
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.Nm
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driver interfaces those frame buffers with the
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.Xr syscons 4
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console driver.
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.Pp
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.Tn ATI Mach64
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chips are very common as low-end graphics chips in
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.Tn PCI
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based
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.Tn UltraSPARC
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systems.
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They are found on-board in
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.Tn Sun Blade 100 ,
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.Tn Sun Blade 150 ,
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.Tn Sun Ultra 5
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and
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.Tn Sun Ultra 10
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as well as on
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.Tn Sun
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OEM mainboards like the
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.Tn Sun AXe .
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They are also used on add-on cards like the
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.Tn Sun PGX
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and
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.Tn Sun PGX64 .
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.Pp
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The
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.Nm
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driver requires the chip which it is supposed to drive to be also
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supported by the
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.Tn Open Firmware ,
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either by a built-in FCode driver package of the on-board firmware
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or by additional FCode on the add-on card.
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As a matter of course
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.Tn UltraSPARC
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systems with an on-board
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.Tn ATI Mach64 chip
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also have a built-in FCode driver package for this chip.
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There are also mainboards like the
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.Tn Sun AX1105
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and
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.Tn Sun AXi
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boards however,
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which have built-in FCode for certain
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.Tn ATI Mach64
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chips although they are not equipped with an on-board one.
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Mainboards with built-in FCode for certain
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.Tn ATI Mach64
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chips can be used with any add-on card which is based on one of those
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chips,
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including cards which are equipped with x86 firmware and intended for
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use in PCs.
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Otherwise an add-on card which comes with its own FCode like the
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.Tn Sun PGX
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or
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.Tn Sun PGX64
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has to be used.
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.Sh HARDWARE
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The
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.Nm
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driver provides support for the following chips:
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.Pp
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.Bl -bullet -compact
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.It
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.Tn ATI 3D Rage II+
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.It
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.Tn ATI 3D Rage IIC
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.It
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.Tn ATI 3D Rage I/II
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.It
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.Tn ATI 3D Rage LT
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.It
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.Tn ATI 3D Rage LT Pro
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.It
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.Tn ATI 3D Rage Pro
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.It
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.Tn ATI 3D Rage Pro Turbo
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.It
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.Tn ATI Mach64 CT
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.It
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.Tn ATI Mach64 VT
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.It
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.Tn ATI Mach64 VT4
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.It
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.Tn ATI Mach64 VTB
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.It
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.Tn ATI Rage L Mobility
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.It
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.Tn ATI Rage Mobility
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.It
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.Tn ATI Rage Mobility M1
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.It
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.Tn ATI Rage Mobility M3
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.It
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.Tn ATI Rage XC
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.It
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.Tn ATI Rage XL
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.El
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.Pp
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The
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following add-on cards are known to work with the
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.Nm
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driver at this time:
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.Pp
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.Bl -bullet -compact
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.It
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.Tn ATI 3D Charger PCI
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.It
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.Tn Sun PGX 8-Bit Color Frame Buffer
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(part no.\& 370-2256)
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.It
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.Tn Sun PGX64 8/24-Bit Color Frame Buffer
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(part no.\& 370-4362)
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.El
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.Sh SEE ALSO
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.Xr creator 4 ,
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.Xr syscons 4
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Nx 2.0 .
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The first
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.Fx
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version to include it was
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.Fx 6.0 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Marius Strobl Aq Mt marius@FreeBSD.org
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based on the
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.Nx
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driver written by
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.An Bang Jun-Young .
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.Sh CAVEATS
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Font loading and mode switching are not implemented.
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