config root man

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.\" Copyright (c) 2002 Jason L. Wright (jason@thought.net)
.\" Copyright (c) 2005, 2006 Marius Strobl <marius@FreeBSD.org>
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.\"	from: OpenBSD: creator.4,v 1.20 2005/03/05 01:48:59 miod Exp
.\" $FreeBSD: release/9.1.0/share/man/man4/man4.sparc64/machfb.4 208027 2010-05-13 12:07:55Z uqs $
.\"
.Dd September 2, 2006
.Dt MACHFB 4 sparc64
.Os
.Sh NAME
.Nm machfb
.Nd "accelerated color frame buffer"
.Sh SYNOPSIS
.Cd "device machfb"
.Sh DESCRIPTION
The
.Tn ATI Mach64
family of chips are color frame buffers with graphics acceleration.
The
.Nm
driver interfaces those frame buffers with the
.Xr syscons 4
console driver.
.Pp
.Tn ATI Mach64
chips are very common as low-end graphics chips in
.Tn PCI
based
.Tn UltraSPARC
systems.
They are found on-board in
.Tn Sun Blade 100 ,
.Tn Sun Blade 150 ,
.Tn Sun Ultra 5
and
.Tn Sun Ultra 10
as well as on
.Tn Sun
OEM mainboards like the
.Tn Sun AXe .
They are also used on add-on cards like the
.Tn Sun PGX
and
.Tn Sun PGX64 .
.Pp
The
.Nm
driver requires the chip which it is supposed to drive to be also
supported by the
.Tn Open Firmware ,
either by a built-in FCode driver package of the on-board firmware
or by additional FCode on the add-on card.
As a matter of course
.Tn UltraSPARC
systems with an on-board
.Tn ATI Mach64 chip
also have a built-in FCode driver package for this chip.
There are also mainboards like the
.Tn Sun AX1105
and
.Tn Sun AXi
boards however,
which have built-in FCode for certain
.Tn ATI Mach64
chips although they are not equipped with an on-board one.
Mainboards with built-in FCode for certain
.Tn ATI Mach64
chips can be used with any add-on card which is based on one of those
chips,
including cards which are equipped with x86 firmware and intended for
use in PCs.
Otherwise an add-on card which comes with its own FCode like the
.Tn Sun PGX
or
.Tn Sun PGX64
has to be used.
.Sh HARDWARE
The
.Nm
driver provides support for the following chips:
.Pp
.Bl -bullet -compact
.It
.Tn ATI 3D Rage II+
.It
.Tn ATI 3D Rage IIC
.It
.Tn ATI 3D Rage I/II
.It
.Tn ATI 3D Rage LT
.It
.Tn ATI 3D Rage LT Pro
.It
.Tn ATI 3D Rage Pro
.It
.Tn ATI 3D Rage Pro Turbo
.It
.Tn ATI Mach64 CT
.It
.Tn ATI Mach64 VT
.It
.Tn ATI Mach64 VT4
.It
.Tn ATI Mach64 VTB
.It
.Tn ATI Rage L Mobility
.It
.Tn ATI Rage Mobility
.It
.Tn ATI Rage Mobility M1
.It
.Tn ATI Rage Mobility M3
.It
.Tn ATI Rage XC
.It
.Tn ATI Rage XL
.El
.Pp
The
following add-on cards are known to work with the
.Nm
driver at this time:
.Pp
.Bl -bullet -compact
.It
.Tn ATI 3D Charger PCI
.It
.Tn Sun PGX 8-Bit Color Frame Buffer
(part no.\& 370-2256)
.It
.Tn Sun PGX64 8/24-Bit Color Frame Buffer
(part no.\& 370-4362)
.El
.Sh SEE ALSO
.Xr creator 4 ,
.Xr syscons 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 2.0 .
The first
.Fx
version to include it was
.Fx 6.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An "Marius Strobl" Aq marius@FreeBSD.org
based on the
.Nx
driver written by
.An "Bang Jun-Young" .
.Sh CAVEATS
Font loading and mode switching are not implemented.