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170 lines
4.5 KiB
Groff
170 lines
4.5 KiB
Groff
.\"
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.\" Copyright (c) 1994 Keith E. Walker
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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, 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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.\" $FreeBSD$
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.\"
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.Dd December 8, 1994
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.Dt MCD 4 i386
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.Os
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.Sh NAME
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.Nm mcd
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.Nd Mitsumi CD-ROM driver
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.Sh SYNOPSIS
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.Cd "device mcd 1"
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.Pp
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In
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.Pa /boot/device.hints :
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.Cd hint.mcd.0.at="isa"
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.Cd hint.mcd.0.port="0x300"
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.Cd hint.mcd.0.irq="10"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides a data and audio interface to the Mitsumi-brand CD-ROM
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player.
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The CD-ROM player must be interfaced to the ISA bus through
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one of the Mitsumi proprietary controller boards.
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The controller
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boards supported are the LU002S, LU005S, the FX001 and the quite
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common FX001D.
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.Pp
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The
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.Nm
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driver responds to disk-specific
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.Fn ioctl
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commands, namely the
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.Dv DIOCGDINFO ,
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.Dv DIOCGPART ,
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.Dv DIOCWDINFO ,
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and
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.Dv DIOCSDINFO ,
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commands.
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Other disk-specific
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.Fn ioctl
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commands will return an error.
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.Pp
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The
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.Nm
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driver also responds to special CD-ROM
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.Fn ioctl
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commands.
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These commands
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control the CD-ROM player's audio features.
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The commands are:
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.Pp
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.Bl -tag -width CDIOCREADSUBCHANNEL -compact -offset indent
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.It CDIOCREADSUBCHANNEL
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get sub-channel information on current status of disc playing
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.It CDIOCREADTOCHEADER
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get table of contents header
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.It CDIOCREADTOCENTRYS
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gets all of the table of contents
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.It CDIOCPLAYTRACKS
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begins audio playing at location specified
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.It CDIOCPLAYBLOCKS
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fails with error
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.Er EINVAL
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.It CDIOCPLAYMSF
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begins audio playing at location specified
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.It CDIOCRESUME
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resumes playing a previously paused disc
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.It CDIOCPAUSE
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pauses a playing disc
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.It CDIOCSTART
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begins playing a disc
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.It CDIOCSTOP
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stops a previously playing disc
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.It CDIOCEJECT
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opens the disc tray (there is no support for a corresponding un-eject
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command).
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.It CDIOCRESET
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stops any play and resets the Mitsumi controller board
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.It CDIOCSETDEBUG
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cause the kernel to print debug messages to the console about the
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.Nm
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driver
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.It CDIOCCLRDEBUG
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cause the kernel to quit printing debug messages about the
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.Nm
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driver
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.El
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.Pp
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The
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.Fn ioctl
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commands defined above are the only ones that the
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.Nm
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driver supports.
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There are other CD-ROM related
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.Fn ioctl
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commands (such as
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.Dv CDIOCSETVOL
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and
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.Dv CDIOCSETSTERIO )
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which are available
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and may be supported by future versions of the driver.
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.Sh FILES
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.Bl -tag -width /dev/(r)mcd0a -compact
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.It Pa /dev/(r)mcd0a
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accesses
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.Bx
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partition on the disc.
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Normally, there is only
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one file system on a CD-ROM disc.
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.It Pa /dev/(r)mcd0c
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accesses raw device.
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.El
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.Sh NOTES
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The character-mode devices for the
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.Nm
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driver should only be used for accessing the audio features of the
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CD-ROM player as the performance on data is abysmal.
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.Pp
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The current version of the driver uses neither the DMA or IRQ
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features of the interface board, although it has an interrupt handler
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for any IRQ requests that are generated.
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Until the DMA features are
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supported, the only interrupts that the board generates are those that
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aren't supported by the driver anyway.
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.Sh SEE ALSO
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.Pa /usr/include/sys/cdio.h
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.Sh AUTHORS
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.An -nosplit
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The driver was written by
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.An Holger Veit
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(data part) and
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.An Brian Moore
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(audio part).
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Changes were provided by
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.An Gary Clark II ,
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.An Andrew A. Chernov ,
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and
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.An Jordan K. Hubbard .
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.Sh HISTORY
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An
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.Nm
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driver appeared in
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.Fx 1.0 .
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