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