269 lines
15 KiB
Text
269 lines
15 KiB
Text
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/*
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* 1.00 Oct 31, 1994 -- Initial version.
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* 1.01 Nov 2, 1994 -- Fixed problem with starting request in
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* cdrom_check_status.
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* 1.03 Nov 25, 1994 -- leaving unmask_intr[] as a user-setting (as for disks)
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* (from mlord) -- minor changes to cdrom_setup()
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* -- renamed ide_dev_s to ide_drive_t, enable irq on command
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* 2.00 Nov 27, 1994 -- Generalize packet command interface;
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* add audio ioctls.
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* 2.01 Dec 3, 1994 -- Rework packet command interface to handle devices
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* which send an interrupt when ready for a command.
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* 2.02 Dec 11, 1994 -- Cache the TOC in the driver.
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* Don't use SCMD_PLAYAUDIO_TI; it's not included
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* in the current version of ATAPI.
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* Try to use LBA instead of track or MSF addressing
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* when possible.
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* Don't wait for READY_STAT.
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* 2.03 Jan 10, 1995 -- Rewrite block read routines to handle block sizes
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* other than 2k and to move multiple sectors in a
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* single transaction.
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* 2.04 Apr 21, 1995 -- Add work-around for Creative Labs CD220E drives.
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* Thanks to Nick Saw <cwsaw@pts7.pts.mot.com> for
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* help in figuring this out. Ditto for Acer and
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* Aztech drives, which seem to have the same problem.
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* 2.04b May 30, 1995 -- Fix to match changes in ide.c version 3.16 -ml
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* 2.05 Jun 8, 1995 -- Don't attempt to retry after an illegal request
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* or data protect error.
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* Use HWIF and DEV_HWIF macros as in ide.c.
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* Always try to do a request_sense after
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* a failed command.
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* Include an option to give textual descriptions
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* of ATAPI errors.
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* Fix a bug in handling the sector cache which
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* showed up if the drive returned data in 512 byte
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* blocks (like Pioneer drives). Thanks to
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* Richard Hirst <srh@gpt.co.uk> for diagnosing this.
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* Properly supply the page number field in the
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* MODE_SELECT command.
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* PLAYAUDIO12 is broken on the Aztech; work around it.
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* 2.05x Aug 11, 1995 -- lots of data structure renaming/restructuring in ide.c
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* (my apologies to Scott, but now ide-cd.c is independent)
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* 3.00 Aug 22, 1995 -- Implement CDROMMULTISESSION ioctl.
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* Implement CDROMREADAUDIO ioctl (UNTESTED).
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* Use input_ide_data() and output_ide_data().
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* Add door locking.
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* Fix usage count leak in cdrom_open, which happened
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* when a read-write mount was attempted.
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* Try to load the disk on open.
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* Implement CDROMEJECT_SW ioctl (off by default).
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* Read total cdrom capacity during open.
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* Rearrange logic in cdrom_decode_status. Issue
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* request sense commands for failed packet commands
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* from here instead of from cdrom_queue_packet_command.
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* Fix a race condition in retrieving error information.
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* Suppress printing normal unit attention errors and
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* some drive not ready errors.
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* Implement CDROMVOLREAD ioctl.
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* Implement CDROMREADMODE1/2 ioctls.
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* Fix race condition in setting up interrupt handlers
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* when the `serialize' option is used.
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* 3.01 Sep 2, 1995 -- Fix ordering of reenabling interrupts in
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* cdrom_queue_request.
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* Another try at using ide_[input,output]_data.
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* 3.02 Sep 16, 1995 -- Stick total disk capacity in partition table as well.
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* Make VERBOSE_IDE_CD_ERRORS dump failed command again.
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* Dump out more information for ILLEGAL REQUEST errs.
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* Fix handling of errors occurring before the
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* packet command is transferred.
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* Fix transfers with odd bytelengths.
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* 3.03 Oct 27, 1995 -- Some Creative drives have an id of just `CD'.
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* `DCI-2S10' drives are broken too.
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* 3.04 Nov 20, 1995 -- So are Vertos drives.
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* 3.05 Dec 1, 1995 -- Changes to go with overhaul of ide.c and ide-tape.c
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* 3.06 Dec 16, 1995 -- Add support needed for partitions.
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* More workarounds for Vertos bugs (based on patches
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* from Holger Dietze <dietze@aix520.informatik.uni-leipzig.de>).
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* Try to eliminate byteorder assumptions.
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* Use atapi_cdrom_subchnl struct definition.
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* Add STANDARD_ATAPI compilation option.
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* 3.07 Jan 29, 1996 -- More twiddling for broken drives: Sony 55D,
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* Vertos 300.
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* Add NO_DOOR_LOCKING configuration option.
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* Handle drive_cmd requests w/NULL args (for hdparm -t).
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* Work around sporadic Sony55e audio play problem.
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* 3.07a Feb 11, 1996 -- check drive->id for NULL before dereferencing, to fix
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* problem with "hde=cdrom" with no drive present. -ml
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* 3.08 Mar 6, 1996 -- More Vertos workarounds.
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* 3.09 Apr 5, 1996 -- Add CDROMCLOSETRAY ioctl.
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* Switch to using MSF addressing for audio commands.
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* Reformat to match kernel tabbing style.
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* Add CDROM_GET_UPC ioctl.
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* 3.10 Apr 10, 1996 -- Fix compilation error with STANDARD_ATAPI.
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* 3.11 Apr 29, 1996 -- Patch from Heiko Eißfeldt <heiko@colossus.escape.de>
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* to remove redundant verify_area calls.
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* 3.12 May 7, 1996 -- Rudimentary changer support. Based on patches
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* from Gerhard Zuber <zuber@berlin.snafu.de>.
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* Let open succeed even if there's no loaded disc.
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* 3.13 May 19, 1996 -- Fixes for changer code.
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* 3.14 May 29, 1996 -- Add work-around for Vertos 600.
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* (From Hennus Bergman <hennus@sky.ow.nl>.)
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* 3.15 July 2, 1996 -- Added support for Sanyo 3 CD changers
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* from Ben Galliart <bgallia@luc.edu> with
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* special help from Jeff Lightfoot
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* <jeffml@pobox.com>
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* 3.15a July 9, 1996 -- Improved Sanyo 3 CD changer identification
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* 3.16 Jul 28, 1996 -- Fix from Gadi to reduce kernel stack usage for ioctl.
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* 3.17 Sep 17, 1996 -- Tweak audio reads for some drives.
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* Start changing CDROMLOADFROMSLOT to CDROM_SELECT_DISC.
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* 3.18 Oct 31, 1996 -- Added module and DMA support.
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*
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* 4.00 Nov 5, 1996 -- New ide-cd maintainer,
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* Erik B. Andersen <andersee@debian.org>
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* -- Newer Creative drives don't always set the error
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* register correctly. Make sure we see media changes
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* regardless.
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* -- Integrate with generic cdrom driver.
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* -- CDROMGETSPINDOWN and CDROMSETSPINDOWN ioctls, based on
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* a patch from Ciro Cattuto <>.
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* -- Call set_device_ro.
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* -- Implement CDROMMECHANISMSTATUS and CDROMSLOTTABLE
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* ioctls, based on patch by Erik Andersen
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* -- Add some probes of drive capability during setup.
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*
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* 4.01 Nov 11, 1996 -- Split into ide-cd.c and ide-cd.h
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* -- Removed CDROMMECHANISMSTATUS and CDROMSLOTTABLE
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* ioctls in favor of a generalized approach
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* using the generic cdrom driver.
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* -- Fully integrated with the 2.1.X kernel.
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* -- Other stuff that I forgot (lots of changes)
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*
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* 4.02 Dec 01, 1996 -- Applied patch from Gadi Oxman <gadio@netvision.net.il>
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* to fix the drive door locking problems.
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*
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* 4.03 Dec 04, 1996 -- Added DSC overlap support.
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* 4.04 Dec 29, 1996 -- Added CDROMREADRAW ioclt based on patch
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* by Ales Makarov (xmakarov@sun.felk.cvut.cz)
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*
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* 4.05 Nov 20, 1997 -- Modified to print more drive info on init
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* Minor other changes
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* Fix errors on CDROMSTOP (If you have a "Dolphin",
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* you must define IHAVEADOLPHIN)
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* Added identifier so new Sanyo CD-changer works
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* Better detection if door locking isn't supported
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*
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* 4.06 Dec 17, 1997 -- fixed endless "tray open" messages -ml
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* 4.07 Dec 17, 1997 -- fallback to set pc->stat on "tray open"
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* 4.08 Dec 18, 1997 -- spew less noise when tray is empty
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* -- fix speed display for ACER 24X, 18X
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* 4.09 Jan 04, 1998 -- fix handling of the last block so we return
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* an end of file instead of an I/O error (Gadi)
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* 4.10 Jan 24, 1998 -- fixed a bug so now changers can change to a new
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* slot when there is no disc in the current slot.
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* -- Fixed a memory leak where info->changer_info was
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* malloc'ed but never free'd when closing the device.
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* -- Cleaned up the global namespace a bit by making more
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* functions static that should already have been.
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* 4.11 Mar 12, 1998 -- Added support for the CDROM_SELECT_SPEED ioctl
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* based on a patch for 2.0.33 by Jelle Foks
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* <jelle@scintilla.utwente.nl>, a patch for 2.0.33
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* by Toni Giorgino <toni@pcape2.pi.infn.it>, the SCSI
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* version, and my own efforts. -erik
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* -- Fixed a stupid bug which egcs was kind enough to
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* inform me of where "Illegal mode for this track"
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* was never returned due to a comparison on data
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* types of limited range.
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* 4.12 Mar 29, 1998 -- Fixed bug in CDROM_SELECT_SPEED so write speed is
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* now set ionly for CD-R and CD-RW drives. I had
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* removed this support because it produced errors.
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* It produced errors _only_ for non-writers. duh.
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* 4.13 May 05, 1998 -- Suppress useless "in progress of becoming ready"
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* messages, since this is not an error.
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* -- Change error messages to be const
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* -- Remove a "\t" which looks ugly in the syslogs
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* 4.14 July 17, 1998 -- Change to pointing to .ps version of ATAPI spec
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* since the .pdf version doesn't seem to work...
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* -- Updated the TODO list to something more current.
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*
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* 4.15 Aug 25, 1998 -- Updated ide-cd.h to respect mechine endianess,
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* patch thanks to "Eddie C. Dost" <ecd@skynet.be>
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*
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* 4.50 Oct 19, 1998 -- New maintainers!
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* Jens Axboe <axboe@image.dk>
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* Chris Zwilling <chris@cloudnet.com>
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*
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* 4.51 Dec 23, 1998 -- Jens Axboe <axboe@image.dk>
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* - ide_cdrom_reset enabled since the ide subsystem
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* handles resets fine now. <axboe@image.dk>
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* - Transfer size fix for Samsung CD-ROMs, thanks to
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* "Ville Hallik" <ville.hallik@mail.ee>.
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* - other minor stuff.
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*
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* 4.52 Jan 19, 1999 -- Jens Axboe <axboe@image.dk>
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* - Detect DVD-ROM/RAM drives
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*
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* 4.53 Feb 22, 1999 - Include other model Samsung and one Goldstar
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* drive in transfer size limit.
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* - Fix the I/O error when doing eject without a medium
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* loaded on some drives.
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* - CDROMREADMODE2 is now implemented through
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* CDROMREADRAW, since many drives don't support
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* MODE2 (even though ATAPI 2.6 says they must).
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* - Added ignore parameter to ide-cd (as a module), eg
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* insmod ide-cd ignore='hda hdb'
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* Useful when using ide-cd in conjunction with
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* ide-scsi. TODO: non-modular way of doing the
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* same.
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*
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* 4.54 Aug 5, 1999 - Support for MMC2 class commands through the generic
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* packet interface to cdrom.c.
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* - Unified audio ioctl support, most of it.
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* - cleaned up various deprecated verify_area().
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* - Added ide_cdrom_packet() as the interface for
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* the Uniform generic_packet().
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* - bunch of other stuff, will fill in logs later.
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* - report 1 slot for non-changers, like the other
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* cd-rom drivers. don't report select disc for
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* non-changers as well.
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* - mask out audio playing, if the device can't do it.
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*
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* 4.55 Sep 1, 1999 - Eliminated the rest of the audio ioctls, except
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* for CDROMREADTOC[ENTRY|HEADER]. Some of the drivers
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* use this independently of the actual audio handling.
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* They will disappear later when I get the time to
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* do it cleanly.
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* - Minimize the TOC reading - only do it when we
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* know a media change has occurred.
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* - Moved all the CDROMREADx ioctls to the Uniform layer.
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* - Heiko Eißfeldt <heiko@colossus.escape.de> supplied
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* some fixes for CDI.
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* - CD-ROM leaving door locked fix from Andries
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* Brouwer <Andries.Brouwer@cwi.nl>
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* - Erik Andersen <andersen@xmission.com> unified
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* commands across the various drivers and how
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* sense errors are handled.
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*
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* 4.56 Sep 12, 1999 - Removed changer support - it is now in the
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* Uniform layer.
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* - Added partition based multisession handling.
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* - Mode sense and mode select moved to the
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* Uniform layer.
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* - Fixed a problem with WPI CDS-32X drive - it
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* failed the capabilities
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*
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* 4.57 Apr 7, 2000 - Fixed sense reporting.
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* - Fixed possible oops in ide_cdrom_get_last_session()
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* - Fix locking mania and make ide_cdrom_reset relock
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* - Stop spewing errors to log when magicdev polls with
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* TEST_UNIT_READY on some drives.
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* - Various fixes from Tobias Ringstrom:
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* tray if it was locked prior to the reset.
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* - cdrom_read_capacity returns one frame too little.
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* - Fix real capacity reporting.
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*
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* 4.58 May 1, 2000 - Clean up ACER50 stuff.
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* - Fix small problem with ide_cdrom_capacity
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*
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* 4.59 Aug 11, 2000 - Fix changer problem in cdrom_read_toc, we weren't
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* correctly sensing a disc change.
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* - Rearranged some code
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* - Use extended sense on drives that support it for
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* correctly reporting tray status -- from
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* Michael D Johnson <johnsom@orst.edu>
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* 4.60 Dec 17, 2003 - Add mt rainier support
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* - Bump timeout for packet commands, matches sr
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* - Odd stuff
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* 4.61 Jan 22, 2004 - support hardware sector sizes other than 2kB,
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* Pascal Schmidt <der.eremit@email.de>
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*/
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