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Documentation: drop more IDE boot options and ide-cd.rst
Drop ide-* command line options.
Drop cdrom/ide-cd.rst documentation.
Fixes: 898ee22c32 ("Drop Documentation/ide/")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220424033701.7988-1-rdunlap@infradead.org
[jc: also deleted reference from cdrom/index.rst]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Randy Dunlap
Jonathan Corbet
parent
f1a693994b
commit
4a840d5fdc
@ -1792,26 +1792,6 @@
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icn= [HW,ISDN]
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icn= [HW,ISDN]
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Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
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Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
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ide-core.nodma= [HW] (E)IDE subsystem
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Format: =0.0 to prevent dma on hda, =0.1 hdb =1.0 hdc
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.vlb_clock .pci_clock .noflush .nohpa .noprobe .nowerr
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.cdrom .chs .ignore_cable are additional options
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See Documentation/ide/ide.rst.
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ide-generic.probe-mask= [HW] (E)IDE subsystem
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Format: <int>
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Probe mask for legacy ISA IDE ports. Depending on
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platform up to 6 ports are supported, enabled by
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setting corresponding bits in the mask to 1. The
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default value is 0x0, which has a special meaning.
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On systems that have PCI, it triggers scanning the
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PCI bus for the first and the second port, which
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are then probed. On systems without PCI the value
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of 0x0 enables probing the two first ports as if it
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was 0x3.
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ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
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Claim all unknown PCI IDE storage controllers.
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idle= [X86]
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idle= [X86]
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Format: idle=poll, idle=halt, idle=nomwait
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Format: idle=poll, idle=halt, idle=nomwait
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@ -1,538 +0,0 @@
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IDE-CD driver documentation
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===========================
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:Originally by: scott snyder <snyder@fnald0.fnal.gov> (19 May 1996)
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:Carrying on the torch is: Erik Andersen <andersee@debian.org>
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:New maintainers (19 Oct 1998): Jens Axboe <axboe@image.dk>
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1. Introduction
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---------------
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The ide-cd driver should work with all ATAPI ver 1.2 to ATAPI 2.6 compliant
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CDROM drives which attach to an IDE interface. Note that some CDROM vendors
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(including Mitsumi, Sony, Creative, Aztech, and Goldstar) have made
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both ATAPI-compliant drives and drives which use a proprietary
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interface. If your drive uses one of those proprietary interfaces,
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this driver will not work with it (but one of the other CDROM drivers
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probably will). This driver will not work with `ATAPI` drives which
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attach to the parallel port. In addition, there is at least one drive
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(CyCDROM CR520ie) which attaches to the IDE port but is not ATAPI;
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this driver will not work with drives like that either (but see the
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aztcd driver).
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This driver provides the following features:
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- Reading from data tracks, and mounting ISO 9660 filesystems.
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- Playing audio tracks. Most of the CDROM player programs floating
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around should work; I usually use Workman.
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- Multisession support.
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- On drives which support it, reading digital audio data directly
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from audio tracks. The program cdda2wav can be used for this.
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Note, however, that only some drives actually support this.
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- There is now support for CDROM changers which comply with the
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ATAPI 2.6 draft standard (such as the NEC CDR-251). This additional
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functionality includes a function call to query which slot is the
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currently selected slot, a function call to query which slots contain
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CDs, etc. A sample program which demonstrates this functionality is
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appended to the end of this file. The Sanyo 3-disc changer
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(which does not conform to the standard) is also now supported.
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Please note the driver refers to the first CD as slot # 0.
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2. Installation
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---------------
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0. The ide-cd relies on the ide disk driver. See
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Documentation/ide/ide.rst for up-to-date information on the ide
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driver.
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1. Make sure that the ide and ide-cd drivers are compiled into the
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kernel you're using. When configuring the kernel, in the section
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entitled "Floppy, IDE, and other block devices", say either `Y`
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(which will compile the support directly into the kernel) or `M`
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(to compile support as a module which can be loaded and unloaded)
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to the options::
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ATA/ATAPI/MFM/RLL support
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Include IDE/ATAPI CDROM support
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Depending on what type of IDE interface you have, you may need to
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specify additional configuration options. See
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Documentation/ide/ide.rst.
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2. You should also ensure that the iso9660 filesystem is either
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compiled into the kernel or available as a loadable module. You
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can see if a filesystem is known to the kernel by catting
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/proc/filesystems.
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3. The CDROM drive should be connected to the host on an IDE
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interface. Each interface on a system is defined by an I/O port
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address and an IRQ number, the standard assignments being
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0x1f0 and 14 for the primary interface and 0x170 and 15 for the
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secondary interface. Each interface can control up to two devices,
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where each device can be a hard drive, a CDROM drive, a floppy drive,
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or a tape drive. The two devices on an interface are called `master`
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and `slave`; this is usually selectable via a jumper on the drive.
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Linux names these devices as follows. The master and slave devices
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on the primary IDE interface are called `hda` and `hdb`,
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respectively. The drives on the secondary interface are called
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`hdc` and `hdd`. (Interfaces at other locations get other letters
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in the third position; see Documentation/ide/ide.rst.)
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If you want your CDROM drive to be found automatically by the
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driver, you should make sure your IDE interface uses either the
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primary or secondary addresses mentioned above. In addition, if
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the CDROM drive is the only device on the IDE interface, it should
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be jumpered as `master`. (If for some reason you cannot configure
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your system in this manner, you can probably still use the driver.
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You may have to pass extra configuration information to the kernel
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when you boot, however. See Documentation/ide/ide.rst for more
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information.)
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4. Boot the system. If the drive is recognized, you should see a
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message which looks like::
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hdb: NEC CD-ROM DRIVE:260, ATAPI CDROM drive
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If you do not see this, see section 5 below.
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5. You may want to create a symbolic link /dev/cdrom pointing to the
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actual device. You can do this with the command::
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ln -s /dev/hdX /dev/cdrom
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where X should be replaced by the letter indicating where your
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drive is installed.
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6. You should be able to see any error messages from the driver with
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the `dmesg` command.
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3. Basic usage
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--------------
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An ISO 9660 CDROM can be mounted by putting the disc in the drive and
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typing (as root)::
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mount -t iso9660 /dev/cdrom /mnt/cdrom
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where it is assumed that /dev/cdrom is a link pointing to the actual
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device (as described in step 5 of the last section) and /mnt/cdrom is
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an empty directory. You should now be able to see the contents of the
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CDROM under the /mnt/cdrom directory. If you want to eject the CDROM,
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you must first dismount it with a command like::
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umount /mnt/cdrom
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Note that audio CDs cannot be mounted.
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Some distributions set up /etc/fstab to always try to mount a CDROM
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filesystem on bootup. It is not required to mount the CDROM in this
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manner, though, and it may be a nuisance if you change CDROMs often.
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You should feel free to remove the cdrom line from /etc/fstab and
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mount CDROMs manually if that suits you better.
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Multisession and photocd discs should work with no special handling.
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The hpcdtoppm package (ftp.gwdg.de:/pub/linux/hpcdtoppm/) may be
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useful for reading photocds.
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To play an audio CD, you should first unmount and remove any data
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CDROM. Any of the CDROM player programs should then work (workman,
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workbone, cdplayer, etc.).
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On a few drives, you can read digital audio directly using a program
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such as cdda2wav. The only types of drive which I've heard support
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this are Sony and Toshiba drives. You will get errors if you try to
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use this function on a drive which does not support it.
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For supported changers, you can use the `cdchange` program (appended to
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the end of this file) to switch between changer slots. Note that the
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drive should be unmounted before attempting this. The program takes
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two arguments: the CDROM device, and the slot number to which you wish
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to change. If the slot number is -1, the drive is unloaded.
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4. Common problems
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------------------
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This section discusses some common problems encountered when trying to
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use the driver, and some possible solutions. Note that if you are
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experiencing problems, you should probably also review
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Documentation/ide/ide.rst for current information about the underlying
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IDE support code. Some of these items apply only to earlier versions
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of the driver, but are mentioned here for completeness.
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In most cases, you should probably check with `dmesg` for any errors
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from the driver.
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a. Drive is not detected during booting.
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- Review the configuration instructions above and in
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Documentation/ide/ide.rst, and check how your hardware is
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configured.
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- If your drive is the only device on an IDE interface, it should
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be jumpered as master, if at all possible.
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- If your IDE interface is not at the standard addresses of 0x170
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or 0x1f0, you'll need to explicitly inform the driver using a
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lilo option. See Documentation/ide/ide.rst. (This feature was
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added around kernel version 1.3.30.)
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- If the autoprobing is not finding your drive, you can tell the
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driver to assume that one exists by using a lilo option of the
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form `hdX=cdrom`, where X is the drive letter corresponding to
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where your drive is installed. Note that if you do this and you
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see a boot message like::
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hdX: ATAPI cdrom (?)
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this does _not_ mean that the driver has successfully detected
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the drive; rather, it means that the driver has not detected a
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drive, but is assuming there's one there anyway because you told
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it so. If you actually try to do I/O to a drive defined at a
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nonexistent or nonresponding I/O address, you'll probably get
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errors with a status value of 0xff.
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- Some IDE adapters require a nonstandard initialization sequence
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before they'll function properly. (If this is the case, there
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will often be a separate MS-DOS driver just for the controller.)
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IDE interfaces on sound cards often fall into this category.
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Support for some interfaces needing extra initialization is
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provided in later 1.3.x kernels. You may need to turn on
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additional kernel configuration options to get them to work;
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see Documentation/ide/ide.rst.
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Even if support is not available for your interface, you may be
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able to get it to work with the following procedure. First boot
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MS-DOS and load the appropriate drivers. Then warm-boot linux
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(i.e., without powering off). If this works, it can be automated
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by running loadlin from the MS-DOS autoexec.
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b. Timeout/IRQ errors.
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- If you always get timeout errors, interrupts from the drive are
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probably not making it to the host.
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- IRQ problems may also be indicated by the message
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`IRQ probe failed (<n>)` while booting. If <n> is zero, that
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means that the system did not see an interrupt from the drive when
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it was expecting one (on any feasible IRQ). If <n> is negative,
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that means the system saw interrupts on multiple IRQ lines, when
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it was expecting to receive just one from the CDROM drive.
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- Double-check your hardware configuration to make sure that the IRQ
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number of your IDE interface matches what the driver expects.
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(The usual assignments are 14 for the primary (0x1f0) interface
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and 15 for the secondary (0x170) interface.) Also be sure that
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you don't have some other hardware which might be conflicting with
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the IRQ you're using. Also check the BIOS setup for your system;
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some have the ability to disable individual IRQ levels, and I've
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had one report of a system which was shipped with IRQ 15 disabled
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by default.
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- Note that many MS-DOS CDROM drivers will still function even if
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there are hardware problems with the interrupt setup; they
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apparently don't use interrupts.
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- If you own a Pioneer DR-A24X, you _will_ get nasty error messages
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on boot such as "irq timeout: status=0x50 { DriveReady SeekComplete }"
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The Pioneer DR-A24X CDROM drives are fairly popular these days.
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Unfortunately, these drives seem to become very confused when we perform
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the standard Linux ATA disk drive probe. If you own one of these drives,
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you can bypass the ATA probing which confuses these CDROM drives, by
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adding `append="hdX=noprobe hdX=cdrom"` to your lilo.conf file and running
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lilo (again where X is the drive letter corresponding to where your drive
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is installed.)
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c. System hangups.
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- If the system locks up when you try to access the CDROM, the most
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likely cause is that you have a buggy IDE adapter which doesn't
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properly handle simultaneous transactions on multiple interfaces.
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The most notorious of these is the CMD640B chip. This problem can
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be worked around by specifying the `serialize` option when
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booting. Recent kernels should be able to detect the need for
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|
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this automatically in most cases, but the detection is not
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foolproof. See Documentation/ide/ide.rst for more information
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|
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about the `serialize` option and the CMD640B.
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|
|
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- Note that many MS-DOS CDROM drivers will work with such buggy
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|
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hardware, apparently because they never attempt to overlap CDROM
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operations with other disk activity.
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d. Can't mount a CDROM.
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|
|
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- If you get errors from mount, it may help to check `dmesg` to see
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|
||||||
if there are any more specific errors from the driver or from the
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|
||||||
filesystem.
|
|
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|
|
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- Make sure there's a CDROM loaded in the drive, and that's it's an
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|
||||||
ISO 9660 disc. You can't mount an audio CD.
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|
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|
|
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- With the CDROM in the drive and unmounted, try something like::
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|
||||||
cat /dev/cdrom | od | more
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|
||||||
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|
||||||
If you see a dump, then the drive and driver are probably working
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|
||||||
OK, and the problem is at the filesystem level (i.e., the CDROM is
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|
||||||
not ISO 9660 or has errors in the filesystem structure).
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|
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|
|
||||||
- If you see `not a block device` errors, check that the definitions
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|
||||||
of the device special files are correct. They should be as
|
|
||||||
follows::
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|
||||||
|
|
||||||
brw-rw---- 1 root disk 3, 0 Nov 11 18:48 /dev/hda
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|
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brw-rw---- 1 root disk 3, 64 Nov 11 18:48 /dev/hdb
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|
||||||
brw-rw---- 1 root disk 22, 0 Nov 11 18:48 /dev/hdc
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|
||||||
brw-rw---- 1 root disk 22, 64 Nov 11 18:48 /dev/hdd
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|
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|
|
||||||
Some early Slackware releases had these defined incorrectly. If
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|
||||||
these are wrong, you can remake them by running the script
|
|
||||||
scripts/MAKEDEV.ide. (You may have to make it executable
|
|
||||||
with chmod first.)
|
|
||||||
|
|
||||||
If you have a /dev/cdrom symbolic link, check that it is pointing
|
|
||||||
to the correct device file.
|
|
||||||
|
|
||||||
If you hear people talking of the devices `hd1a` and `hd1b`, these
|
|
||||||
were old names for what are now called hdc and hdd. Those names
|
|
||||||
should be considered obsolete.
|
|
||||||
|
|
||||||
- If mount is complaining that the iso9660 filesystem is not
|
|
||||||
available, but you know it is (check /proc/filesystems), you
|
|
||||||
probably need a newer version of mount. Early versions would not
|
|
||||||
always give meaningful error messages.
|
|
||||||
|
|
||||||
|
|
||||||
e. Directory listings are unpredictably truncated, and `dmesg` shows
|
|
||||||
`buffer botch` error messages from the driver.
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|
||||||
|
|
||||||
- There was a bug in the version of the driver in 1.2.x kernels
|
|
||||||
which could cause this. It was fixed in 1.3.0. If you can't
|
|
||||||
upgrade, you can probably work around the problem by specifying a
|
|
||||||
blocksize of 2048 when mounting. (Note that you won't be able to
|
|
||||||
directly execute binaries off the CDROM in that case.)
|
|
||||||
|
|
||||||
If you see this in kernels later than 1.3.0, please report it as a
|
|
||||||
bug.
|
|
||||||
|
|
||||||
|
|
||||||
f. Data corruption.
|
|
||||||
|
|
||||||
- Random data corruption was occasionally observed with the Hitachi
|
|
||||||
CDR-7730 CDROM. If you experience data corruption, using "hdx=slow"
|
|
||||||
as a command line parameter may work around the problem, at the
|
|
||||||
expense of low system performance.
|
|
||||||
|
|
||||||
|
|
||||||
5. cdchange.c
|
|
||||||
-------------
|
|
||||||
|
|
||||||
::
|
|
||||||
|
|
||||||
/*
|
|
||||||
* cdchange.c [-v] <device> [<slot>]
|
|
||||||
*
|
|
||||||
* This loads a CDROM from a specified slot in a changer, and displays
|
|
||||||
* information about the changer status. The drive should be unmounted before
|
|
||||||
* using this program.
|
|
||||||
*
|
|
||||||
* Changer information is displayed if either the -v flag is specified
|
|
||||||
* or no slot was specified.
|
|
||||||
*
|
|
||||||
* Based on code originally from Gerhard Zuber <zuber@berlin.snafu.de>.
|
|
||||||
* Changer status information, and rewrite for the new Uniform CDROM driver
|
|
||||||
* interface by Erik Andersen <andersee@debian.org>.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <errno.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include <fcntl.h>
|
|
||||||
#include <sys/ioctl.h>
|
|
||||||
#include <linux/cdrom.h>
|
|
||||||
|
|
||||||
|
|
||||||
int
|
|
||||||
main (int argc, char **argv)
|
|
||||||
{
|
|
||||||
char *program;
|
|
||||||
char *device;
|
|
||||||
int fd; /* file descriptor for CD-ROM device */
|
|
||||||
int status; /* return status for system calls */
|
|
||||||
int verbose = 0;
|
|
||||||
int slot=-1, x_slot;
|
|
||||||
int total_slots_available;
|
|
||||||
|
|
||||||
program = argv[0];
|
|
||||||
|
|
||||||
++argv;
|
|
||||||
--argc;
|
|
||||||
|
|
||||||
if (argc < 1 || argc > 3) {
|
|
||||||
fprintf (stderr, "usage: %s [-v] <device> [<slot>]\n",
|
|
||||||
program);
|
|
||||||
fprintf (stderr, " Slots are numbered 1 -- n.\n");
|
|
||||||
exit (1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (strcmp (argv[0], "-v") == 0) {
|
|
||||||
verbose = 1;
|
|
||||||
++argv;
|
|
||||||
--argc;
|
|
||||||
}
|
|
||||||
|
|
||||||
device = argv[0];
|
|
||||||
|
|
||||||
if (argc == 2)
|
|
||||||
slot = atoi (argv[1]) - 1;
|
|
||||||
|
|
||||||
/* open device */
|
|
||||||
fd = open(device, O_RDONLY | O_NONBLOCK);
|
|
||||||
if (fd < 0) {
|
|
||||||
fprintf (stderr, "%s: open failed for `%s`: %s\n",
|
|
||||||
program, device, strerror (errno));
|
|
||||||
exit (1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Check CD player status */
|
|
||||||
total_slots_available = ioctl (fd, CDROM_CHANGER_NSLOTS);
|
|
||||||
if (total_slots_available <= 1 ) {
|
|
||||||
fprintf (stderr, "%s: Device `%s` is not an ATAPI "
|
|
||||||
"compliant CD changer.\n", program, device);
|
|
||||||
exit (1);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (slot >= 0) {
|
|
||||||
if (slot >= total_slots_available) {
|
|
||||||
fprintf (stderr, "Bad slot number. "
|
|
||||||
"Should be 1 -- %d.\n",
|
|
||||||
total_slots_available);
|
|
||||||
exit (1);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* load */
|
|
||||||
slot=ioctl (fd, CDROM_SELECT_DISC, slot);
|
|
||||||
if (slot<0) {
|
|
||||||
fflush(stdout);
|
|
||||||
perror ("CDROM_SELECT_DISC ");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (slot < 0 || verbose) {
|
|
||||||
|
|
||||||
status=ioctl (fd, CDROM_SELECT_DISC, CDSL_CURRENT);
|
|
||||||
if (status<0) {
|
|
||||||
fflush(stdout);
|
|
||||||
perror (" CDROM_SELECT_DISC");
|
|
||||||
exit(1);
|
|
||||||
}
|
|
||||||
slot=status;
|
|
||||||
|
|
||||||
printf ("Current slot: %d\n", slot+1);
|
|
||||||
printf ("Total slots available: %d\n",
|
|
||||||
total_slots_available);
|
|
||||||
|
|
||||||
printf ("Drive status: ");
|
|
||||||
status = ioctl (fd, CDROM_DRIVE_STATUS, CDSL_CURRENT);
|
|
||||||
if (status<0) {
|
|
||||||
perror(" CDROM_DRIVE_STATUS");
|
|
||||||
} else switch(status) {
|
|
||||||
case CDS_DISC_OK:
|
|
||||||
printf ("Ready.\n");
|
|
||||||
break;
|
|
||||||
case CDS_TRAY_OPEN:
|
|
||||||
printf ("Tray Open.\n");
|
|
||||||
break;
|
|
||||||
case CDS_DRIVE_NOT_READY:
|
|
||||||
printf ("Drive Not Ready.\n");
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
printf ("This Should not happen!\n");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
for (x_slot=0; x_slot<total_slots_available; x_slot++) {
|
|
||||||
printf ("Slot %2d: ", x_slot+1);
|
|
||||||
status = ioctl (fd, CDROM_DRIVE_STATUS, x_slot);
|
|
||||||
if (status<0) {
|
|
||||||
perror(" CDROM_DRIVE_STATUS");
|
|
||||||
} else switch(status) {
|
|
||||||
case CDS_DISC_OK:
|
|
||||||
printf ("Disc present.");
|
|
||||||
break;
|
|
||||||
case CDS_NO_DISC:
|
|
||||||
printf ("Empty slot.");
|
|
||||||
break;
|
|
||||||
case CDS_TRAY_OPEN:
|
|
||||||
printf ("CD-ROM tray open.\n");
|
|
||||||
break;
|
|
||||||
case CDS_DRIVE_NOT_READY:
|
|
||||||
printf ("CD-ROM drive not ready.\n");
|
|
||||||
break;
|
|
||||||
case CDS_NO_INFO:
|
|
||||||
printf ("No Information available.");
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
printf ("This Should not happen!\n");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if (slot == x_slot) {
|
|
||||||
status = ioctl (fd, CDROM_DISC_STATUS);
|
|
||||||
if (status<0) {
|
|
||||||
perror(" CDROM_DISC_STATUS");
|
|
||||||
}
|
|
||||||
switch (status) {
|
|
||||||
case CDS_AUDIO:
|
|
||||||
printf ("\tAudio disc.\t");
|
|
||||||
break;
|
|
||||||
case CDS_DATA_1:
|
|
||||||
case CDS_DATA_2:
|
|
||||||
printf ("\tData disc type %d.\t", status-CDS_DATA_1+1);
|
|
||||||
break;
|
|
||||||
case CDS_XA_2_1:
|
|
||||||
case CDS_XA_2_2:
|
|
||||||
printf ("\tXA data disc type %d.\t", status-CDS_XA_2_1+1);
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
printf ("\tUnknown disc type 0x%x!\t", status);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
status = ioctl (fd, CDROM_MEDIA_CHANGED, x_slot);
|
|
||||||
if (status<0) {
|
|
||||||
perror(" CDROM_MEDIA_CHANGED");
|
|
||||||
}
|
|
||||||
switch (status) {
|
|
||||||
case 1:
|
|
||||||
printf ("Changed.\n");
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
printf ("\n");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* close device */
|
|
||||||
status = close (fd);
|
|
||||||
if (status != 0) {
|
|
||||||
fprintf (stderr, "%s: close failed for `%s`: %s\n",
|
|
||||||
program, device, strerror (errno));
|
|
||||||
exit (1);
|
|
||||||
}
|
|
||||||
|
|
||||||
exit (0);
|
|
||||||
}
|
|
||||||
@ -8,7 +8,6 @@ cdrom
|
|||||||
:maxdepth: 1
|
:maxdepth: 1
|
||||||
|
|
||||||
cdrom-standard
|
cdrom-standard
|
||||||
ide-cd
|
|
||||||
packet-writing
|
packet-writing
|
||||||
|
|
||||||
.. only:: subproject and html
|
.. only:: subproject and html
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user