77 lines
2.8 KiB
Groff
77 lines
2.8 KiB
Groff
.\" $NetBSD: ncr.4,v 1.3 2001/09/11 22:52:56 wiz Exp $
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.\"
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.\" Copyright (c) 1997 Matthias Pfaller.
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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. 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 Matthias Pfaller.
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.\" 4. 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, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd April 21, 1997
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.Dt NCR 4 pc532
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.Os
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.Sh NAME
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.Nm ncr
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.Nd NCR5380/DP8490 low level SCSI interface
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.Sh SYNOPSIS
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.Cd "ncr0 at mainbus0 [flags ?]"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides
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.Tn pc532
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specific functions for the machine independent ncr5380 driver provided
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in the kernel source.
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An optional argument
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.Ar flags
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can be used to disable disconnects for all targets (bit 0), to disable the
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use of interrupts (bit 1), to force a SCSI BUS RESET at boot time (bit 2),
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to disable SCSI parity checking for certain targets (bits 8-15) and to disable
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disconnects for certain targets (bits 16-23).
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "ncr?: BUS RESET"
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A BUS RESET was detected on the SCSI bus.
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.It "ncr? spurious interrupt"
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The controller caused a processor interrupt for no reason.
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.It "ncr? ready timeout"
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.It "ncr? pdma not_req timeout"
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.It "ncr? timeout waiting for final SCI_DSR_DREQ"
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These three messages indicate problems during a pseudo-DMA transfer.
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.El
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.Sh SEE ALSO
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.Xr cd 4 ,
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.Xr ch 4 ,
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.Xr sd 4 ,
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.Xr se 4 ,
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.Xr ss 4 ,
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.Xr st 4 ,
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.Xr uk 4 ,
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.Xr scsi 4
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.Sh HISTORY
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A driver for the
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.Tn pc532's
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NCR5380/DP8490 SCSI interface appeared in
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.Nx 1.0 .
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