linux/Documentation/ide/ChangeLog.ide-cd.1994-2004
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   1/*
   2 * 1.00  Oct 31, 1994 -- Initial version.
   3 * 1.01  Nov  2, 1994 -- Fixed problem with starting request in
   4 *                       cdrom_check_status.
   5 * 1.03  Nov 25, 1994 -- leaving unmask_intr[] as a user-setting (as for disks)
   6 * (from mlord)       -- minor changes to cdrom_setup()
   7 *                    -- renamed ide_dev_s to ide_drive_t, enable irq on command
   8 * 2.00  Nov 27, 1994 -- Generalize packet command interface;
   9 *                       add audio ioctls.
  10 * 2.01  Dec  3, 1994 -- Rework packet command interface to handle devices
  11 *                       which send an interrupt when ready for a command.
  12 * 2.02  Dec 11, 1994 -- Cache the TOC in the driver.
  13 *                       Don't use SCMD_PLAYAUDIO_TI; it's not included
  14 *                       in the current version of ATAPI.
  15 *                       Try to use LBA instead of track or MSF addressing
  16 *                       when possible.
  17 *                       Don't wait for READY_STAT.
  18 * 2.03  Jan 10, 1995 -- Rewrite block read routines to handle block sizes
  19 *                       other than 2k and to move multiple sectors in a
  20 *                       single transaction.
  21 * 2.04  Apr 21, 1995 -- Add work-around for Creative Labs CD220E drives.
  22 *                       Thanks to Nick Saw <cwsaw@pts7.pts.mot.com> for
  23 *                       help in figuring this out.  Ditto for Acer and
  24 *                       Aztech drives, which seem to have the same problem.
  25 * 2.04b May 30, 1995 -- Fix to match changes in ide.c version 3.16 -ml
  26 * 2.05  Jun  8, 1995 -- Don't attempt to retry after an illegal request
  27 *                        or data protect error.
  28 *                       Use HWIF and DEV_HWIF macros as in ide.c.
  29 *                       Always try to do a request_sense after
  30 *                        a failed command.
  31 *                       Include an option to give textual descriptions
  32 *                        of ATAPI errors.
  33 *                       Fix a bug in handling the sector cache which
  34 *                        showed up if the drive returned data in 512 byte
  35 *                        blocks (like Pioneer drives).  Thanks to
  36 *                        Richard Hirst <srh@gpt.co.uk> for diagnosing this.
  37 *                       Properly supply the page number field in the
  38 *                        MODE_SELECT command.
  39 *                       PLAYAUDIO12 is broken on the Aztech; work around it.
  40 * 2.05x Aug 11, 1995 -- lots of data structure renaming/restructuring in ide.c
  41 *                       (my apologies to Scott, but now ide-cd.c is independent)
  42 * 3.00  Aug 22, 1995 -- Implement CDROMMULTISESSION ioctl.
  43 *                       Implement CDROMREADAUDIO ioctl (UNTESTED).
  44 *                       Use input_ide_data() and output_ide_data().
  45 *                       Add door locking.
  46 *                       Fix usage count leak in cdrom_open, which happened
  47 *                        when a read-write mount was attempted.
  48 *                       Try to load the disk on open.
  49 *                       Implement CDROMEJECT_SW ioctl (off by default).
  50 *                       Read total cdrom capacity during open.
  51 *                       Rearrange logic in cdrom_decode_status.  Issue
  52 *                        request sense commands for failed packet commands
  53 *                        from here instead of from cdrom_queue_packet_command.
  54 *                        Fix a race condition in retrieving error information.
  55 *                       Suppress printing normal unit attention errors and
  56 *                        some drive not ready errors.
  57 *                       Implement CDROMVOLREAD ioctl.
  58 *                       Implement CDROMREADMODE1/2 ioctls.
  59 *                       Fix race condition in setting up interrupt handlers
  60 *                        when the `serialize' option is used.
  61 * 3.01  Sep  2, 1995 -- Fix ordering of reenabling interrupts in
  62 *                        cdrom_queue_request.
  63 *                       Another try at using ide_[input,output]_data.
  64 * 3.02  Sep 16, 1995 -- Stick total disk capacity in partition table as well.
  65 *                       Make VERBOSE_IDE_CD_ERRORS dump failed command again.
  66 *                       Dump out more information for ILLEGAL REQUEST errs.
  67 *                       Fix handling of errors occurring before the
  68 *                        packet command is transferred.
  69 *                       Fix transfers with odd bytelengths.
  70 * 3.03  Oct 27, 1995 -- Some Creative drives have an id of just `CD'.
  71 *                       `DCI-2S10' drives are broken too.
  72 * 3.04  Nov 20, 1995 -- So are Vertos drives.
  73 * 3.05  Dec  1, 1995 -- Changes to go with overhaul of ide.c and ide-tape.c
  74 * 3.06  Dec 16, 1995 -- Add support needed for partitions.
  75 *                       More workarounds for Vertos bugs (based on patches
  76 *                        from Holger Dietze <dietze@aix520.informatik.uni-leipzig.de>).
  77 *                       Try to eliminate byteorder assumptions.
  78 *                       Use atapi_cdrom_subchnl struct definition.
  79 *                       Add STANDARD_ATAPI compilation option.
  80 * 3.07  Jan 29, 1996 -- More twiddling for broken drives: Sony 55D,
  81 *                        Vertos 300.
  82 *                       Add NO_DOOR_LOCKING configuration option.
  83 *                       Handle drive_cmd requests w/NULL args (for hdparm -t).
  84 *                       Work around sporadic Sony55e audio play problem.
  85 * 3.07a Feb 11, 1996 -- check drive->id for NULL before dereferencing, to fix
  86 *                        problem with "hde=cdrom" with no drive present.  -ml
  87 * 3.08  Mar  6, 1996 -- More Vertos workarounds.
  88 * 3.09  Apr  5, 1996 -- Add CDROMCLOSETRAY ioctl.
  89 *                       Switch to using MSF addressing for audio commands.
  90 *                       Reformat to match kernel tabbing style.
  91 *                       Add CDROM_GET_UPC ioctl.
  92 * 3.10  Apr 10, 1996 -- Fix compilation error with STANDARD_ATAPI.
  93 * 3.11  Apr 29, 1996 -- Patch from Heiko Eißfeldt <heiko@colossus.escape.de>
  94 *                       to remove redundant verify_area calls.
  95 * 3.12  May  7, 1996 -- Rudimentary changer support.  Based on patches
  96 *                        from Gerhard Zuber <zuber@berlin.snafu.de>.
  97 *                       Let open succeed even if there's no loaded disc.
  98 * 3.13  May 19, 1996 -- Fixes for changer code.
  99 * 3.14  May 29, 1996 -- Add work-around for Vertos 600.
 100 *                        (From Hennus Bergman <hennus@sky.ow.nl>.)
 101 * 3.15  July 2, 1996 -- Added support for Sanyo 3 CD changers
 102 *                        from Ben Galliart <bgallia@luc.edu> with
 103 *                        special help from Jeff Lightfoot
 104 *                        <jeffml@pobox.com>
 105 * 3.15a July 9, 1996 -- Improved Sanyo 3 CD changer identification
 106 * 3.16  Jul 28, 1996 -- Fix from Gadi to reduce kernel stack usage for ioctl.
 107 * 3.17  Sep 17, 1996 -- Tweak audio reads for some drives.
 108 *                       Start changing CDROMLOADFROMSLOT to CDROM_SELECT_DISC.
 109 * 3.18  Oct 31, 1996 -- Added module and DMA support.
 110 *
 111 * 4.00  Nov 5, 1996   -- New ide-cd maintainer,
 112 *                                 Erik B. Andersen <andersee@debian.org>
 113 *                     -- Newer Creative drives don't always set the error
 114 *                          register correctly.  Make sure we see media changes
 115 *                          regardless.
 116 *                     -- Integrate with generic cdrom driver.
 117 *                     -- CDROMGETSPINDOWN and CDROMSETSPINDOWN ioctls, based on
 118 *                          a patch from Ciro Cattuto <>.
 119 *                     -- Call set_device_ro.
 120 *                     -- Implement CDROMMECHANISMSTATUS and CDROMSLOTTABLE
 121 *                          ioctls, based on patch by Erik Andersen
 122 *                     -- Add some probes of drive capability during setup.
 123 *
 124 * 4.01  Nov 11, 1996  -- Split into ide-cd.c and ide-cd.h
 125 *                     -- Removed CDROMMECHANISMSTATUS and CDROMSLOTTABLE
 126 *                          ioctls in favor of a generalized approach
 127 *                          using the generic cdrom driver.
 128 *                     -- Fully integrated with the 2.1.X kernel.
 129 *                     -- Other stuff that I forgot (lots of changes)
 130 *
 131 * 4.02  Dec 01, 1996  -- Applied patch from Gadi Oxman <gadio@netvision.net.il>
 132 *                          to fix the drive door locking problems.
 133 *
 134 * 4.03  Dec 04, 1996  -- Added DSC overlap support.
 135 * 4.04  Dec 29, 1996  -- Added CDROMREADRAW ioclt based on patch
 136 *                          by Ales Makarov (xmakarov@sun.felk.cvut.cz)
 137 *
 138 * 4.05  Nov 20, 1997  -- Modified to print more drive info on init
 139 *                        Minor other changes
 140 *                        Fix errors on CDROMSTOP (If you have a "Dolphin",
 141 *                          you must define IHAVEADOLPHIN)
 142 *                        Added identifier so new Sanyo CD-changer works
 143 *                        Better detection if door locking isn't supported
 144 *
 145 * 4.06  Dec 17, 1997  -- fixed endless "tray open" messages  -ml
 146 * 4.07  Dec 17, 1997  -- fallback to set pc->stat on "tray open"
 147 * 4.08  Dec 18, 1997  -- spew less noise when tray is empty
 148 *                     -- fix speed display for ACER 24X, 18X
 149 * 4.09  Jan 04, 1998  -- fix handling of the last block so we return
 150 *                         an end of file instead of an I/O error (Gadi)
 151 * 4.10  Jan 24, 1998  -- fixed a bug so now changers can change to a new
 152 *                         slot when there is no disc in the current slot.
 153 *                     -- Fixed a memory leak where info->changer_info was
 154 *                         malloc'ed but never free'd when closing the device.
 155 *                     -- Cleaned up the global namespace a bit by making more
 156 *                         functions static that should already have been.
 157 * 4.11  Mar 12, 1998  -- Added support for the CDROM_SELECT_SPEED ioctl
 158 *                         based on a patch for 2.0.33 by Jelle Foks
 159 *                         <jelle@scintilla.utwente.nl>, a patch for 2.0.33
 160 *                         by Toni Giorgino <toni@pcape2.pi.infn.it>, the SCSI
 161 *                         version, and my own efforts.  -erik
 162 *                     -- Fixed a stupid bug which egcs was kind enough to
 163 *                         inform me of where "Illegal mode for this track"
 164 *                         was never returned due to a comparison on data
 165 *                         types of limited range.
 166 * 4.12  Mar 29, 1998  -- Fixed bug in CDROM_SELECT_SPEED so write speed is
 167 *                         now set ionly for CD-R and CD-RW drives.  I had
 168 *                         removed this support because it produced errors.
 169 *                         It produced errors _only_ for non-writers. duh.
 170 * 4.13  May 05, 1998  -- Suppress useless "in progress of becoming ready"
 171 *                         messages, since this is not an error.
 172 *                     -- Change error messages to be const
 173 *                     -- Remove a "\t" which looks ugly in the syslogs
 174 * 4.14  July 17, 1998 -- Change to pointing to .ps version of ATAPI spec
 175 *                         since the .pdf version doesn't seem to work...
 176 *                     -- Updated the TODO list to something more current.
 177 *
 178 * 4.15  Aug 25, 1998  -- Updated ide-cd.h to respect machine endianness,
 179 *                         patch thanks to "Eddie C. Dost" <ecd@skynet.be>
 180 *
 181 * 4.50  Oct 19, 1998  -- New maintainers!
 182 *                         Jens Axboe <axboe@image.dk>
 183 *                         Chris Zwilling <chris@cloudnet.com>
 184 *
 185 * 4.51  Dec 23, 1998  -- Jens Axboe <axboe@image.dk>
 186 *                      - ide_cdrom_reset enabled since the ide subsystem
 187 *                         handles resets fine now. <axboe@image.dk>
 188 *                      - Transfer size fix for Samsung CD-ROMs, thanks to
 189 *                        "Ville Hallik" <ville.hallik@mail.ee>.
 190 *                      - other minor stuff.
 191 *
 192 * 4.52  Jan 19, 1999  -- Jens Axboe <axboe@image.dk>
 193 *                      - Detect DVD-ROM/RAM drives
 194 *
 195 * 4.53  Feb 22, 1999   - Include other model Samsung and one Goldstar
 196 *                         drive in transfer size limit.
 197 *                      - Fix the I/O error when doing eject without a medium
 198 *                         loaded on some drives.
 199 *                      - CDROMREADMODE2 is now implemented through
 200 *                         CDROMREADRAW, since many drives don't support
 201 *                         MODE2 (even though ATAPI 2.6 says they must).
 202 *                      - Added ignore parameter to ide-cd (as a module), eg
 203 *                              insmod ide-cd ignore='hda hdb'
 204 *                         Useful when using ide-cd in conjunction with
 205 *                         ide-scsi. TODO: non-modular way of doing the
 206 *                         same.
 207 *
 208 * 4.54  Aug 5, 1999    - Support for MMC2 class commands through the generic
 209 *                        packet interface to cdrom.c.
 210 *                      - Unified audio ioctl support, most of it.
 211 *                      - cleaned up various deprecated verify_area().
 212 *                      - Added ide_cdrom_packet() as the interface for
 213 *                        the Uniform generic_packet().
 214 *                      - bunch of other stuff, will fill in logs later.
 215 *                      - report 1 slot for non-changers, like the other
 216 *                        cd-rom drivers. don't report select disc for
 217 *                        non-changers as well.
 218 *                      - mask out audio playing, if the device can't do it.
 219 *
 220 * 4.55  Sep 1, 1999    - Eliminated the rest of the audio ioctls, except
 221 *                        for CDROMREADTOC[ENTRY|HEADER]. Some of the drivers
 222 *                        use this independently of the actual audio handling.
 223 *                        They will disappear later when I get the time to
 224 *                        do it cleanly.
 225 *                      - Minimize the TOC reading - only do it when we
 226 *                        know a media change has occurred.
 227 *                      - Moved all the CDROMREADx ioctls to the Uniform layer.
 228 *                      - Heiko Eißfeldt <heiko@colossus.escape.de> supplied
 229 *                        some fixes for CDI.
 230 *                      - CD-ROM leaving door locked fix from Andries
 231 *                        Brouwer <Andries.Brouwer@cwi.nl>
 232 *                      - Erik Andersen <andersen@xmission.com> unified
 233 *                        commands across the various drivers and how
 234 *                        sense errors are handled.
 235 *
 236 * 4.56  Sep 12, 1999   - Removed changer support - it is now in the
 237 *                        Uniform layer.
 238 *                      - Added partition based multisession handling.
 239 *                      - Mode sense and mode select moved to the
 240 *                        Uniform layer.
 241 *                      - Fixed a problem with WPI CDS-32X drive - it
 242 *                        failed the capabilities
 243 *
 244 * 4.57  Apr 7, 2000    - Fixed sense reporting.
 245 *                      - Fixed possible oops in ide_cdrom_get_last_session()
 246 *                      - Fix locking mania and make ide_cdrom_reset relock
 247 *                      - Stop spewing errors to log when magicdev polls with
 248 *                        TEST_UNIT_READY on some drives.
 249 *                      - Various fixes from Tobias Ringstrom:
 250 *                        tray if it was locked prior to the reset.
 251 *                        - cdrom_read_capacity returns one frame too little.
 252 *                        - Fix real capacity reporting.
 253 *
 254 * 4.58  May 1, 2000    - Clean up ACER50 stuff.
 255 *                      - Fix small problem with ide_cdrom_capacity
 256 *
 257 * 4.59  Aug 11, 2000   - Fix changer problem in cdrom_read_toc, we weren't
 258 *                        correctly sensing a disc change.
 259 *                      - Rearranged some code
 260 *                      - Use extended sense on drives that support it for
 261 *                        correctly reporting tray status -- from
 262 *                        Michael D Johnson <johnsom@orst.edu>
 263 * 4.60  Dec 17, 2003   - Add mt rainier support
 264 *                      - Bump timeout for packet commands, matches sr
 265 *                      - Odd stuff
 266 * 4.61  Jan 22, 2004   - support hardware sector sizes other than 2kB,
 267 *                        Pascal Schmidt <der.eremit@email.de>
 268 */
 269
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