88 lines
2.6 KiB
Groff
88 lines
2.6 KiB
Groff
.\" $NetBSD: opl.4,v 1.21 2009/01/03 18:27:19 wiz Exp $
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.\"
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.\" Copyright (c) 1999 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 Lennart Augustsson.
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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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.\"
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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 FOUNDATION OR CONTRIBUTORS
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.\" BE 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 January 3, 2009
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.Dt OPL 4
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.Os
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.Sh NAME
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.Nm opl
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.Nd Yamaha OPL2 and OPL3 FM MIDI synthesizer driver
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.Sh SYNOPSIS
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.Cd "opl* at cmpci? flags 1"
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.Cd "opl* at eso?"
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.Cd "opl* at ess?"
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.Cd "opl* at fms?"
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.Cd "opl0 at isa? port 0x388"
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.Cd "opl* at sb?"
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.Cd "opl* at sv?"
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.Cd "opl* at wss?"
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.Cd "opl* at yds?"
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.Cd "opl* at ym?"
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.Cd "midi* at opl?"
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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 Yamaha OPL2 (YM3812) and OPL3
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(YMF262) chips.
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The chips are FM synthesizers and are capable
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of producing a wide range of sounds.
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.Pp
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Access to the device is through the MIDI driver.
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.Pp
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The
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.Nm
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driver usually attaches to a sound card, but it can also sit
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directly on the ISA bus.
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.Pp
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If
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.Dq flags 1
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is specified, the
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.Nm
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driver handles left and right channels of OPL3 swapped.
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Use this flag if your device has such problem.
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.Sh SEE ALSO
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.Xr cmpci 4 ,
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.Xr eso 4 ,
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.Xr ess 4 ,
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.Xr fms 4 ,
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.Xr isa 4 ,
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.Xr midi 4 ,
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.Xr sb 4 ,
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.Xr sv 4 ,
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.Xr wss 4 ,
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.Xr yds 4 ,
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.Xr ym 4
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.Sh HISTORY
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The
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.Nm
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device driver appeared in
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.Nx 1.4 .
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.Sh BUGS
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The OPL3 chip is operated in OPL2 mode despite being more capable.
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