63 lines
2.5 KiB
Groff
63 lines
2.5 KiB
Groff
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.\" $NetBSD: cgfour.4,v 1.1 1996/06/21 22:35:00 pk Exp $
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.\"
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.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Paul Kranenburg.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN 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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.Dd June 23, 1996
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.Dt CGFOUR 4 sparc
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.Os
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.Sh NAME
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.Nm cgfour
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.Nd 8-bit color frame buffer
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.Sh SYNOPSIS
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.Cd "cgfour0 at obio0 addr 0xfb300000 level 4" Pq sun4/300
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.Cd "cgfour0 at obio0 addr 0x0b300000 level 4" Pq sun4/100
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.Sh DESCRIPTION
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The
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.Nm
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is a memory based color frame buffer with overlay plane. Its pixel memory
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and control planes can be mapped into a user process address space by using
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the
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.Xr mmap 2
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system call. The
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.Nm
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driver supports the minimal ioctl's needed to run X11.
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.Sh SEE ALSO
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.Xr bwtwo 4 ,
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.Xr cgtwo 4 ,
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.Xr cgthree 4 ,
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.Xr cgsix 4 ,
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.Xr cgeight 4 ,
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.Xr tcx 4
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