.\"	$OpenBSD: cgfour.4,v 1.21 2007/05/31 19:19:56 jmc Exp $
.\"	$NetBSD: cgfour.4,v 1.2 1997/10/08 22:00:05 jtc Exp $
.\"
.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Paul Kranenburg.
.\"
.\" 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.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"        This product includes software developed by the NetBSD
.\"        Foundation, Inc. and its contributors.
.\" 4. Neither the name of The NetBSD Foundation nor the names of its
.\"    contributors may be used to endorse or promote products derived
.\"    from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``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 FOUNDATION OR CONTRIBUTORS
.\" 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 USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\"
.Dd $Mdocdate: May 31 2007 $
.Dt CGFOUR 4 sparc
.Os
.Sh NAME
.Nm cgfour
.Nd 8-bit color frame buffer
.Sh SYNOPSIS
.Cd "cgfour0 at obio0 addr 0xfb300000 level 4" Pq sun4/300
.Cd "cgfour0 at obio0 addr 0x0b300000 level 4" Pq sun4/100
.Cd "wsdisplay* at cgfour?"
.Sh DESCRIPTION
The
.Nm
is a color frame buffer with overlay plane for the P4 bus
of sun4 class workstations.
.Pp
The
.Nm
driver interfaces the frame buffer with the
.Xr wscons 4
console framework.
It does not provide direct device driver entry points
but makes its functions available via the internal
.Xr wsdisplay 4
interface.
.Sh SEE ALSO
.Xr agten 4 ,
.Xr bwtwo 4 ,
.Xr cgeight 4 ,
.Xr cgfourteen 4 ,
.Xr cgsix 4 ,
.Xr cgthree 4 ,
.Xr cgtwelve 4 ,
.Xr cgtwo 4 ,
.Xr intro 4 ,
.Xr mgx 4 ,
.Xr pninek 4 ,
.Xr pnozz 4 ,
.Xr rfx 4 ,
.Xr tcx 4 ,
.Xr tvtwo 4 ,
.Xr vigra 4 ,
.Xr wscons 4 ,
.Xr wsdisplay 4 ,
.Xr zx 4