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0d0a2dff3b
Submitted by: marius Reviewed by: ru Approved by: re (blanket) X-MFC: not before the code in RELENG_5 matches these man pages or vice versa
122 lines
3.0 KiB
Groff
122 lines
3.0 KiB
Groff
.\"-
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.\" Copyright (c) 1999 Matthew R. Green
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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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.\" 3. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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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 WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: OpenBSD: ebus.4,v 1.6 2004/09/23 18:28:51 jason Exp
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.\" from: NetBSD: ebus.4,v 1.3 2002/03/13 21:42:20 wiz Exp
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.\" $FreeBSD$
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.\"
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.Dd June 18, 2005
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.Dt EBUS 4 sparc64
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.Os
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.Sh NAME
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.Nm ebus
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.Nd "EBus controller and bus"
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.Sh SYNOPSIS
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.Cd "device ebus"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the EBus controller and bus found in most
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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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The
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.Tn EBus
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bus is designed to provide the ability to put
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.Tn ISA
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and traditional
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.Tn Intel
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style peripherals in a
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.Tn SPARC
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based system with a minimal amount of glue logic.
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In
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.Tn UltraSPARC
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systems it is implemented with either a PCIO or a PCIO-2 chip from
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.Tn Sun Microelectronics .
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The PCIO chip also implements a
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.Xr hme 4
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compatible
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.Tn PCI
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network device.
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The PCIO-2 chip also implements a
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.Xr fwohci 4
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compatible
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.Tn IEEE
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.Tn 1394
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.Tn OHCI
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interface, a
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.Xr gem 4
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compatible
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.Tn PCI
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network device and an
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.Xr ohci 4
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compatible
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.Tn OHCI
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.Tn USB
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controller.
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The
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.Tn EBus
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has four DMA channels,
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similar to the DMA seen in the
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.Xr esp 4
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.Tn SCSI
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DMA.
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.Sh SEE ALSO
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.Xr atkbdc 4 ,
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.Xr auxio 4 ,
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.Xr eeprom 4 ,
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.Xr rtc 4 ,
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.Xr snd_audiocs 4 ,
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.Xr uart 4
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.Rs
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.%Q "Sun Microelectronics"
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.%T "Peripheral Component Interconnect Input Output Controller"
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.%V "Part No.: 802-7837-01"
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.%D "March 1997"
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.%O "http://www.sun.com/oem/products/manuals/802-7837.pdf"
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.Re
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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 1.5 .
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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 5.0 .
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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 "Matthew R. Green"
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and ported to
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.Fx
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by
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.An "Thomas Moestl" Aq tmm@FreeBSD.org .
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