3ddb79beyWwLRP_BiM2t1JKgr_plEw xen/drivers/block/ll_rw_blk.c
3e4a8cb7RhubVgsPwO7cK0pgAN8WCQ xen/drivers/block/xen_block.c
3e5d129asHNyZOjBKTkqs-9AFzxemA xen/drivers/block/xen_segment.c
+3e9c248afxxsnAzIt2na7Ej24yNFzg xen/drivers/cdrom/Makefile
+3e9c248ajUkn2W3n4vgm72Hp2ftZ8A xen/drivers/cdrom/cdrom.c
3e4a8cb7alzQCDKS7MlioPoHBKYkdQ xen/drivers/char/Makefile
3e4a8cb7WmiYdC-ASGiCSG_CL8vsqg xen/drivers/char/xen_kbd.c
3e4a8cb7nMChlro4wvOBo76n__iCFA xen/drivers/char/xen_serial.c
3ddb79bdhcqD9ebrslr0O0oHqTiiXg xen/drivers/ide/Makefile
+3e9c248aCM6Lex1Am8_NJIeesN4kKg xen/drivers/ide/ide-cd.c
+3e9c248aFfSNR_hl-WQBbv-R9CTgzg xen/drivers/ide/ide-cd.h
3ddb79bdErDn_WC3G-fWxKNR3viLnA xen/drivers/ide/ide-disk.c
3ddb79bdIPNW36FrlId94jTXaW8HoA xen/drivers/ide/ide-dma.c
3ddb79be5Ysvhn4se_Z-LQY_hI6UPw xen/drivers/ide/ide-features.c
3ddb79c116WbJV8bwGZXFFJy_GNNvw xen/include/xeno/byteorder/swab.h
3ddb79c1pwmlw8VXW8aaSKAVGVmjDA xen/include/xeno/byteorder/swabb.h
3ddb79c0c0cX_DZE209-Bb-Rx1v-Aw xen/include/xeno/cache.h
+3e9c248aEG_nCngztiFmv5CfayNkcA xen/include/xeno/cdrom.h
3ddb79c259jh8hE7vre_8NuE7nwNSA xen/include/xeno/config.h
3ddb79c1V44RD26YqCUm-kqIupM37A xen/include/xeno/ctype.h
3ddb79c05DdHQ0UxX_jKsXdR4QlMCA xen/include/xeno/delay.h
ALL_OBJS += $(BASEDIR)/drivers/pci/driver.o
ALL_OBJS += $(BASEDIR)/drivers/net/driver.o
ALL_OBJS += $(BASEDIR)/drivers/block/driver.o
+ALL_OBJS += $(BASEDIR)/drivers/cdrom/driver.o
ALL_OBJS += $(BASEDIR)/drivers/ide/driver.o
ALL_OBJS += $(BASEDIR)/drivers/scsi/driver.o
ALL_OBJS += $(BASEDIR)/arch/$(ARCH)/arch.o
$(MAKE) -C pci
$(MAKE) -C net
$(MAKE) -C block
+ $(MAKE) -C cdrom
$(MAKE) -C ide
$(MAKE) -C scsi
$(MAKE) -C pci clean
$(MAKE) -C net clean
$(MAKE) -C block clean
+ $(MAKE) -C cdrom clean
$(MAKE) -C ide clean
$(MAKE) -C scsi clean
#endif
/* This will die as all synchronous stuff is coming to an end */
+#if 0
#define complete(_r) panic("completion.h stuff may be needed...")
+#else
+// XXX SMH: we spin when waiting for completion so just toggle flag
+#define complete(_r) (*(int *)(_r) = 0)
+#endif
+
+
/*
* MAC Floppy IWM hooks
--- /dev/null
+
+include $(BASEDIR)/Rules.mk
+
+default: $(OBJS)
+ $(LD) -r -o driver.o $(OBJS)
+clean:
+ rm -f *.o *~ core
--- /dev/null
+/* linux/drivers/cdrom/cdrom.c.
+ Copyright (c) 1996, 1997 David A. van Leeuwen.
+ Copyright (c) 1997, 1998 Erik Andersen <andersee@debian.org>
+ Copyright (c) 1998, 1999 Jens Axboe <axboe@image.dk>
+
+ May be copied or modified under the terms of the GNU General Public
+ License. See linux/COPYING for more information.
+
+ Uniform CD-ROM driver for Linux.
+ See Documentation/cdrom/cdrom-standard.tex for usage information.
+
+ The routines in the file provide a uniform interface between the
+ software that uses CD-ROMs and the various low-level drivers that
+ actually talk to the hardware. Suggestions are welcome.
+ Patches that work are more welcome though. ;-)
+
+ To Do List:
+ ----------------------------------
+
+ -- Modify sysctl/proc interface. I plan on having one directory per
+ drive, with entries for outputing general drive information, and sysctl
+ based tunable parameters such as whether the tray should auto-close for
+ that drive. Suggestions (or patches) for this welcome!
+
+
+ Revision History
+ ----------------------------------
+ 1.00 Date Unknown -- David van Leeuwen <david@tm.tno.nl>
+ -- Initial version by David A. van Leeuwen. I don't have a detailed
+ changelog for the 1.x series, David?
+
+2.00 Dec 2, 1997 -- Erik Andersen <andersee@debian.org>
+ -- New maintainer! As David A. van Leeuwen has been too busy to activly
+ maintain and improve this driver, I am now carrying on the torch. If
+ you have a problem with this driver, please feel free to contact me.
+
+ -- Added (rudimentary) sysctl interface. I realize this is really weak
+ right now, and is _very_ badly implemented. It will be improved...
+
+ -- Modified CDROM_DISC_STATUS so that it is now incorporated into
+ the Uniform CD-ROM driver via the cdrom_count_tracks function.
+ The cdrom_count_tracks function helps resolve some of the false
+ assumptions of the CDROM_DISC_STATUS ioctl, and is also used to check
+ for the correct media type when mounting or playing audio from a CD.
+
+ -- Remove the calls to verify_area and only use the copy_from_user and
+ copy_to_user stuff, since these calls now provide their own memory
+ checking with the 2.1.x kernels.
+
+ -- Major update to return codes so that errors from low-level drivers
+ are passed on through (thanks to Gerd Knorr for pointing out this
+ problem).
+
+ -- Made it so if a function isn't implemented in a low-level driver,
+ ENOSYS is now returned instead of EINVAL.
+
+ -- Simplified some complex logic so that the source code is easier to read.
+
+ -- Other stuff I probably forgot to mention (lots of changes).
+
+2.01 to 2.11 Dec 1997-Jan 1998
+ -- TO-DO! Write changelogs for 2.01 to 2.12.
+
+2.12 Jan 24, 1998 -- Erik Andersen <andersee@debian.org>
+ -- Fixed a bug in the IOCTL_IN and IOCTL_OUT macros. It turns out that
+ copy_*_user does not return EFAULT on error, but instead returns the number
+ of bytes not copied. I was returning whatever non-zero stuff came back from
+ the copy_*_user functions directly, which would result in strange errors.
+
+2.13 July 17, 1998 -- Erik Andersen <andersee@debian.org>
+ -- Fixed a bug in CDROM_SELECT_SPEED where you couldn't lower the speed
+ of the drive. Thanks to Tobias Ringstr|m <tori@prosolvia.se> for pointing
+ this out and providing a simple fix.
+ -- Fixed the procfs-unload-module bug with the fill_inode procfs callback.
+ thanks to Andrea Arcangeli
+ -- Fixed it so that the /proc entry now also shows up when cdrom is
+ compiled into the kernel. Before it only worked when loaded as a module.
+
+ 2.14 August 17, 1998 -- Erik Andersen <andersee@debian.org>
+ -- Fixed a bug in cdrom_media_changed and handling of reporting that
+ the media had changed for devices that _don't_ implement media_changed.
+ Thanks to Grant R. Guenther <grant@torque.net> for spotting this bug.
+ -- Made a few things more pedanticly correct.
+
+2.50 Oct 19, 1998 - Jens Axboe <axboe@image.dk>
+ -- New maintainers! Erik was too busy to continue the work on the driver,
+ so now Chris Zwilling <chris@cloudnet.com> and Jens Axboe <axboe@image.dk>
+ will do their best to follow in his footsteps
+
+ 2.51 Dec 20, 1998 - Jens Axboe <axboe@image.dk>
+ -- Check if drive is capable of doing what we ask before blindly changing
+ cdi->options in various ioctl.
+ -- Added version to proc entry.
+
+ 2.52 Jan 16, 1999 - Jens Axboe <axboe@image.dk>
+ -- Fixed an error in open_for_data where we would sometimes not return
+ the correct error value. Thanks Huba Gaspar <huba@softcell.hu>.
+ -- Fixed module usage count - usage was based on /proc/sys/dev
+ instead of /proc/sys/dev/cdrom. This could lead to an oops when other
+ modules had entries in dev. Feb 02 - real bug was in sysctl.c where
+ dev would be removed even though it was used. cdrom.c just illuminated
+ that bug.
+
+ 2.53 Feb 22, 1999 - Jens Axboe <axboe@image.dk>
+ -- Fixup of several ioctl calls, in particular CDROM_SET_OPTIONS has
+ been "rewritten" because capabilities and options aren't in sync. They
+ should be...
+ -- Added CDROM_LOCKDOOR ioctl. Locks the door and keeps it that way.
+ -- Added CDROM_RESET ioctl.
+ -- Added CDROM_DEBUG ioctl. Enable debug messages on-the-fly.
+ -- Added CDROM_GET_CAPABILITY ioctl. This relieves userspace programs
+ from parsing /proc/sys/dev/cdrom/info.
+
+ 2.54 Mar 15, 1999 - Jens Axboe <axboe@image.dk>
+ -- Check capability mask from low level driver when counting tracks as
+ per suggestion from Corey J. Scotts <cstotts@blue.weeg.uiowa.edu>.
+
+ 2.55 Apr 25, 1999 - Jens Axboe <axboe@image.dk>
+ -- autoclose was mistakenly checked against CDC_OPEN_TRAY instead of
+ CDC_CLOSE_TRAY.
+ -- proc info didn't mask against capabilities mask.
+
+ 3.00 Aug 5, 1999 - Jens Axboe <axboe@image.dk>
+ -- Unified audio ioctl handling across CD-ROM drivers. A lot of the
+ code was duplicated before. Drives that support the generic packet
+ interface are now being fed packets from here instead.
+ -- First attempt at adding support for MMC2 commands - for DVD and
+ CD-R(W) drives. Only the DVD parts are in now - the interface used is
+ the same as for the audio ioctls.
+ -- ioctl cleanups. if a drive couldn't play audio, it didn't get
+ a change to perform device specific ioctls as well.
+ -- Defined CDROM_CAN(CDC_XXX) for checking the capabilities.
+ -- Put in sysctl files for autoclose, autoeject, check_media, debug,
+ and lock.
+ -- /proc/sys/dev/cdrom/info has been updated to also contain info about
+ CD-Rx and DVD capabilities.
+ -- Now default to checking media type.
+ -- CDROM_SEND_PACKET ioctl added. The infrastructure was in place for
+ doing this anyway, with the generic_packet addition.
+
+ 3.01 Aug 6, 1999 - Jens Axboe <axboe@image.dk>
+ -- Fix up the sysctl handling so that the option flags get set
+ correctly.
+ -- Fix up ioctl handling so the device specific ones actually get
+ called :).
+
+ 3.02 Aug 8, 1999 - Jens Axboe <axboe@image.dk>
+ -- Fixed volume control on SCSI drives (or others with longer audio
+ page).
+ -- Fixed a couple of DVD minors. Thanks to Andrew T. Veliath
+ <andrewtv@usa.net> for telling me and for having defined the various
+ DVD structures and ioctls in the first place! He designed the original
+ DVD patches for ide-cd and while I rearranged and unified them, the
+ interface is still the same.
+
+ 3.03 Sep 1, 1999 - Jens Axboe <axboe@image.dk>
+ -- Moved the rest of the audio ioctls from the CD-ROM drivers here. Only
+ CDROMREADTOCENTRY and CDROMREADTOCHDR are left.
+ -- Moved the CDROMREADxxx ioctls in here.
+ -- Defined the cdrom_get_last_written and cdrom_get_next_block as ioctls
+ and exported functions.
+ -- Erik Andersen <andersen@xmission.com> modified all SCMD_ commands
+ to now read GPCMD_ for the new generic packet interface. All low level
+ drivers are updated as well.
+ -- Various other cleanups.
+
+ 3.04 Sep 12, 1999 - Jens Axboe <axboe@image.dk>
+ -- Fixed a couple of possible memory leaks (if an operation failed and
+ we didn't free the buffer before returning the error).
+ -- Integrated Uniform CD Changer handling from Richard Sharman
+ <rsharman@pobox.com>.
+ -- Defined CD_DVD and CD_CHANGER log levels.
+ -- Fixed the CDROMREADxxx ioctls.
+ -- CDROMPLAYTRKIND uses the GPCMD_PLAY_AUDIO_MSF command - too few
+ drives supported it. We loose the index part, however.
+ -- Small modifications to accomodate opens of /dev/hdc1, required
+ for ide-cd to handle multisession discs.
+ -- Export cdrom_mode_sense and cdrom_mode_select.
+ -- init_cdrom_command() for setting up a cgc command.
+
+ 3.05 Oct 24, 1999 - Jens Axboe <axboe@image.dk>
+ -- Changed the interface for CDROM_SEND_PACKET. Before it was virtually
+ impossible to send the drive data in a sensible way.
+ -- Lowered stack usage in mmc_ioctl(), dvd_read_disckey(), and
+ dvd_read_manufact.
+ -- Added setup of write mode for packet writing.
+ -- Fixed CDDA ripping with cdda2wav - accept much larger requests of
+ number of frames and split the reads in blocks of 8.
+
+ 3.06 Dec 13, 1999 - Jens Axboe <axboe@image.dk>
+ -- Added support for changing the region of DVD drives.
+ -- Added sense data to generic command.
+
+ 3.07 Feb 2, 2000 - Jens Axboe <axboe@suse.de>
+ -- Do same "read header length" trick in cdrom_get_disc_info() as
+ we do in cdrom_get_track_info() -- some drive don't obey specs and
+ fail if they can't supply the full Mt Fuji size table.
+ -- Deleted stuff related to setting up write modes. It has a different
+ home now.
+ -- Clear header length in mode_select unconditionally.
+ -- Removed the register_disk() that was added, not needed here.
+
+ 3.08 May 1, 2000 - Jens Axboe <axboe@suse.de>
+ -- Fix direction flag in setup_send_key and setup_report_key. This
+ gave some SCSI adapters problems.
+ -- Always return -EROFS for write opens
+ -- Convert to module_init/module_exit style init and remove some
+ of the #ifdef MODULE stuff
+ -- Fix several dvd errors - DVD_LU_SEND_ASF should pass agid,
+ DVD_HOST_SEND_RPC_STATE did not set buffer size in cdb, and
+ dvd_do_auth passed uninitialized data to drive because init_cdrom_command
+ did not clear a 0 sized buffer.
+
+ 3.09 May 12, 2000 - Jens Axboe <axboe@suse.de>
+ -- Fix Video-CD on SCSI drives that don't support READ_CD command. In
+ that case switch block size and issue plain READ_10 again, then switch
+ back.
+
+ 3.10 Jun 10, 2000 - Jens Axboe <axboe@suse.de>
+ -- Fix volume control on CD's - old SCSI-II drives now use their own
+ code, as doing MODE6 stuff in here is really not my intention.
+ -- Use READ_DISC_INFO for more reliable end-of-disc.
+
+ 3.11 Jun 12, 2000 - Jens Axboe <axboe@suse.de>
+ -- Fix bug in getting rpc phase 2 region info.
+ -- Reinstate "correct" CDROMPLAYTRKIND
+
+ 3.12 Oct 18, 2000 - Jens Axboe <axboe@suse.de>
+ -- Use quiet bit on packet commands not known to work
+
+-------------------------------------------------------------------------*/
+
+#define REVISION "Revision: 3.12"
+#define VERSION "Id: cdrom.c 3.12 2000/10/18"
+
+/* I use an error-log mask to give fine grain control over the type of
+ messages dumped to the system logs. The available masks include: */
+#define CD_NOTHING 0x0
+#define CD_WARNING 0x1
+#define CD_REG_UNREG 0x2
+#define CD_DO_IOCTL 0x4
+#define CD_OPEN 0x8
+#define CD_CLOSE 0x10
+#define CD_COUNT_TRACKS 0x20
+#define CD_CHANGER 0x40
+#define CD_DVD 0x80
+
+/* Define this to remove _all_ the debugging messages */
+/* #define ERRLOGMASK CD_NOTHING */
+#define ERRLOGMASK (CD_WARNING)
+/* #define ERRLOGMASK (CD_WARNING|CD_OPEN|CD_COUNT_TRACKS|CD_CLOSE) */
+/* #define ERRLOGMASK (CD_WARNING|CD_REG_UNREG|CD_DO_IOCTL|CD_OPEN|CD_CLOSE|CD_COUNT_TRACKS) */
+
+#include <xeno/config.h>
+#include <xeno/module.h>
+/* #include <xeno/fs.h> */
+#include <xeno/major.h>
+#include <xeno/types.h>
+#include <xeno/errno.h>
+#include <xeno/kernel.h>
+#include <xeno/mm.h>
+#include <xeno/slab.h>
+#include <xeno/cdrom.h>
+/* #include <xeno/sysctl.h> */
+/* #include <xeno/proc_fs.h> */
+#include <xeno/init.h>
+
+/* #include <asm/fcntl.h> */
+/* #include <asm/segment.h> */
+#include <asm/uaccess.h>
+
+/* used to tell the module to turn on full debugging messages */
+static int debug;
+/* used to keep tray locked at all times */
+static int keeplocked;
+/* default compatibility mode */
+static int autoclose=1;
+static int autoeject;
+static int lockdoor = 1;
+/* will we ever get to use this... sigh. */
+static int check_media_type;
+MODULE_PARM(debug, "i");
+MODULE_PARM(autoclose, "i");
+MODULE_PARM(autoeject, "i");
+MODULE_PARM(lockdoor, "i");
+MODULE_PARM(check_media_type, "i");
+
+#if (ERRLOGMASK!=CD_NOTHING)
+#define cdinfo(type, fmt, args...) \
+ if ((ERRLOGMASK & type) || debug==1 ) \
+ printk(KERN_INFO "cdrom: " fmt, ## args)
+#else
+#define cdinfo(type, fmt, args...)
+#endif
+
+/* These are used to simplify getting data in from and back to user land */
+#define IOCTL_IN(arg, type, in) \
+ if (copy_from_user(&(in), (type *) (arg), sizeof (in))) \
+ return -EFAULT;
+
+#define IOCTL_OUT(arg, type, out) \
+ if (copy_to_user((type *) (arg), &(out), sizeof (out))) \
+ return -EFAULT;
+
+/* The (cdo->capability & ~cdi->mask & CDC_XXX) construct was used in
+ a lot of places. This macro makes the code more clear. */
+#define CDROM_CAN(type) (cdi->ops->capability & ~cdi->mask & (type))
+
+/* used in the audio ioctls */
+#define CHECKAUDIO if ((ret=check_for_audio_disc(cdi, cdo))) return ret
+
+/* Not-exported routines. */
+static int open_for_data(struct cdrom_device_info * cdi);
+static int check_for_audio_disc(struct cdrom_device_info * cdi,
+ struct cdrom_device_ops * cdo);
+static void sanitize_format(union cdrom_addr *addr,
+ u_char * curr, u_char requested);
+static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
+ unsigned long arg);
+
+int cdrom_get_last_written(kdev_t dev, long *last_written);
+int cdrom_get_next_writable(kdev_t dev, long *next_writable);
+
+#ifdef CONFIG_SYSCTL
+static void cdrom_sysctl_register(void);
+#endif /* CONFIG_SYSCTL */
+static struct cdrom_device_info *topCdromPtr;
+#if 0
+static devfs_handle_t devfs_handle;
+static struct unique_numspace cdrom_numspace = UNIQUE_NUMBERSPACE_INITIALISER;
+#endif
+
+/* This macro makes sure we don't have to check on cdrom_device_ops
+ * existence in the run-time routines below. Change_capability is a
+ * hack to have the capability flags defined const, while we can still
+ * change it here without gcc complaining at every line.
+ */
+#define ENSURE(call, bits) if (cdo->call == NULL) *change_capability &= ~(bits)
+
+int register_cdrom(struct cdrom_device_info *cdi)
+{
+ static char banner_printed;
+ int major = MAJOR(cdi->dev);
+ struct cdrom_device_ops *cdo = cdi->ops;
+ int *change_capability = (int *)&cdo->capability; /* hack */
+
+ cdinfo(CD_OPEN, "entering register_cdrom\n");
+
+ if (major < 0 || major >= MAX_BLKDEV)
+ return -1;
+ if (cdo->open == NULL || cdo->release == NULL)
+ return -2;
+ if ( !banner_printed ) {
+ printk(KERN_INFO "Uniform CD-ROM driver " REVISION "\n");
+ banner_printed = 1;
+#ifdef CONFIG_SYSCTL
+ cdrom_sysctl_register();
+#endif /* CONFIG_SYSCTL */
+ }
+ ENSURE(drive_status, CDC_DRIVE_STATUS );
+ ENSURE(media_changed, CDC_MEDIA_CHANGED);
+ ENSURE(tray_move, CDC_CLOSE_TRAY | CDC_OPEN_TRAY);
+ ENSURE(lock_door, CDC_LOCK);
+ ENSURE(select_speed, CDC_SELECT_SPEED);
+ ENSURE(get_last_session, CDC_MULTI_SESSION);
+ ENSURE(get_mcn, CDC_MCN);
+ ENSURE(reset, CDC_RESET);
+ ENSURE(audio_ioctl, CDC_PLAY_AUDIO);
+ ENSURE(dev_ioctl, CDC_IOCTLS);
+ ENSURE(generic_packet, CDC_GENERIC_PACKET);
+ cdi->mc_flags = 0;
+ cdo->n_minors = 0;
+ cdi->options = CDO_USE_FFLAGS;
+
+ if (autoclose==1 && CDROM_CAN(CDC_CLOSE_TRAY))
+ cdi->options |= (int) CDO_AUTO_CLOSE;
+ if (autoeject==1 && CDROM_CAN(CDC_OPEN_TRAY))
+ cdi->options |= (int) CDO_AUTO_EJECT;
+ if (lockdoor==1)
+ cdi->options |= (int) CDO_LOCK;
+ if (check_media_type==1)
+ cdi->options |= (int) CDO_CHECK_TYPE;
+#if 0
+ if (!devfs_handle)
+ devfs_handle = devfs_mk_dir (NULL, "cdroms", NULL);
+ cdi->number = devfs_alloc_unique_number (&cdrom_numspace);
+ if (cdi->de) {
+ int pos;
+ devfs_handle_t slave;
+ char rname[64];
+
+ pos = devfs_generate_path (cdi->de, rname + 3,
+ sizeof rname - 3);
+ if (pos >= 0) {
+ char vname[16];
+ sprintf (vname, "cdrom%d", cdi->number);
+ strncpy (rname + pos, "../", 3);
+ devfs_mk_symlink (devfs_handle, vname,
+ DEVFS_FL_DEFAULT,
+ rname + pos, &slave, NULL);
+ devfs_auto_unregister (cdi->de, slave);
+ }
+ }
+#endif
+ cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" registered\n", cdi->name);
+ cdi->next = topCdromPtr;
+ topCdromPtr = cdi;
+ return 0;
+}
+#undef ENSURE
+
+int unregister_cdrom(struct cdrom_device_info *unreg)
+{
+ struct cdrom_device_info *cdi, *prev;
+ int major = MAJOR(unreg->dev);
+
+ cdinfo(CD_OPEN, "entering unregister_cdrom\n");
+
+ if (major < 0 || major >= MAX_BLKDEV)
+ return -1;
+
+ prev = NULL;
+ cdi = topCdromPtr;
+ while (cdi != NULL && cdi->dev != unreg->dev) {
+ prev = cdi;
+ cdi = cdi->next;
+ }
+
+ if (cdi == NULL)
+ return -2;
+ if (prev)
+ prev->next = cdi->next;
+ else
+ topCdromPtr = cdi->next;
+ cdi->ops->n_minors--;
+#if 0
+ devfs_unregister (cdi->de);
+ devfs_dealloc_unique_number (&cdrom_numspace, cdi->number);
+#endif
+ cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name);
+ return 0;
+}
+
+struct cdrom_device_info *cdrom_find_device(kdev_t dev)
+{
+ struct cdrom_device_info *cdi;
+
+ cdi = topCdromPtr;
+ while (cdi != NULL && cdi->dev != dev)
+ cdi = cdi->next;
+
+ return cdi;
+}
+
+/* We use the open-option O_NONBLOCK to indicate that the
+ * purpose of opening is only for subsequent ioctl() calls; no device
+ * integrity checks are performed.
+ *
+ * We hope that all cd-player programs will adopt this convention. It
+ * is in their own interest: device control becomes a lot easier
+ * this way.
+ */
+int cdrom_open(struct inode *ip, struct file *fp)
+{
+ struct cdrom_device_info *cdi;
+ kdev_t dev = ip->i_rdev;
+ int ret;
+
+ cdinfo(CD_OPEN, "entering cdrom_open\n");
+ if ((cdi = cdrom_find_device(dev)) == NULL)
+ return -ENODEV;
+
+#if 0
+ if ((fp->f_mode & FMODE_WRITE) && !CDROM_CAN(CDC_DVD_RAM))
+ return -EROFS;
+
+ /* if this was a O_NONBLOCK open and we should honor the flags,
+ * do a quick open without drive/disc integrity checks. */
+ if ((fp->f_flags & O_NONBLOCK) && (cdi->options & CDO_USE_FFLAGS))
+ ret = cdi->ops->open(cdi, 1);
+ else
+ ret = open_for_data(cdi);
+#else
+ ret = open_for_data(cdi);
+#endif
+
+ if (!ret) cdi->use_count++;
+
+ cdinfo(CD_OPEN, "Use count for \"/dev/%s\" now %d\n", cdi->name, cdi->use_count);
+ /* Do this on open. Don't wait for mount, because they might
+ not be mounting, but opening with O_NONBLOCK */
+ check_disk_change(dev);
+ return ret;
+}
+
+static
+int open_for_data(struct cdrom_device_info * cdi)
+{
+ int ret;
+ struct cdrom_device_ops *cdo = cdi->ops;
+ tracktype tracks;
+ cdinfo(CD_OPEN, "entering open_for_data\n");
+ /* Check if the driver can report drive status. If it can, we
+ can do clever things. If it can't, well, we at least tried! */
+ if (cdo->drive_status != NULL) {
+ ret = cdo->drive_status(cdi, CDSL_CURRENT);
+ cdinfo(CD_OPEN, "drive_status=%d\n", ret);
+ if (ret == CDS_TRAY_OPEN) {
+ cdinfo(CD_OPEN, "the tray is open...\n");
+ /* can/may i close it? */
+ if (CDROM_CAN(CDC_CLOSE_TRAY) &&
+ cdi->options & CDO_AUTO_CLOSE) {
+ cdinfo(CD_OPEN, "trying to close the tray.\n");
+ ret=cdo->tray_move(cdi,0);
+ if (ret) {
+ cdinfo(CD_OPEN, "bummer. tried to close the tray but failed.\n");
+ /* Ignore the error from the low
+ level driver. We don't care why it
+ couldn't close the tray. We only care
+ that there is no disc in the drive,
+ since that is the _REAL_ problem here.*/
+ ret=-ENOMEDIUM;
+ goto clean_up_and_return;
+ }
+ } else {
+ cdinfo(CD_OPEN, "bummer. this drive can't close the tray.\n");
+ ret=-ENOMEDIUM;
+ goto clean_up_and_return;
+ }
+ /* Ok, the door should be closed now.. Check again */
+ ret = cdo->drive_status(cdi, CDSL_CURRENT);
+ if ((ret == CDS_NO_DISC) || (ret==CDS_TRAY_OPEN)) {
+ cdinfo(CD_OPEN, "bummer. the tray is still not closed.\n");
+ cdinfo(CD_OPEN, "tray might not contain a medium.\n");
+ ret=-ENOMEDIUM;
+ goto clean_up_and_return;
+ }
+ cdinfo(CD_OPEN, "the tray is now closed.\n");
+ }
+ if (ret!=CDS_DISC_OK) {
+ ret = -ENOMEDIUM;
+ goto clean_up_and_return;
+ }
+ }
+ cdrom_count_tracks(cdi, &tracks);
+ if (tracks.error == CDS_NO_DISC) {
+ cdinfo(CD_OPEN, "bummer. no disc.\n");
+ ret=-ENOMEDIUM;
+ goto clean_up_and_return;
+ }
+ /* CD-Players which don't use O_NONBLOCK, workman
+ * for example, need bit CDO_CHECK_TYPE cleared! */
+ if (tracks.data==0) {
+ if (cdi->options & CDO_CHECK_TYPE) {
+ /* give people a warning shot, now that CDO_CHECK_TYPE
+ is the default case! */
+ cdinfo(CD_OPEN, "bummer. wrong media type.\n");
+#if 0
+ cdinfo(CD_WARNING, "pid %d must open device O_NONBLOCK!\n",
+ (unsigned int)current->pid);
+#else
+ cdinfo(CD_WARNING, "xen must open device O_NONBLOCK!\n");
+#endif
+ ret=-EMEDIUMTYPE;
+ goto clean_up_and_return;
+ }
+ else {
+ cdinfo(CD_OPEN, "wrong media type, but CDO_CHECK_TYPE not set.\n");
+ }
+ }
+
+ cdinfo(CD_OPEN, "all seems well, opening the device.\n");
+
+ /* all seems well, we can open the device */
+ ret = cdo->open(cdi, 0); /* open for data */
+ cdinfo(CD_OPEN, "opening the device gave me %d.\n", ret);
+ /* After all this careful checking, we shouldn't have problems
+ opening the device, but we don't want the device locked if
+ this somehow fails... */
+ if (ret) {
+ cdinfo(CD_OPEN, "open device failed.\n");
+ goto clean_up_and_return;
+ }
+ if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
+ cdo->lock_door(cdi, 1);
+ cdinfo(CD_OPEN, "door locked.\n");
+ }
+ cdinfo(CD_OPEN, "device opened successfully.\n");
+ return ret;
+
+ /* Something failed. Try to unlock the drive, because some drivers
+ (notably ide-cd) lock the drive after every command. This produced
+ a nasty bug where after mount failed, the drive would remain locked!
+ This ensures that the drive gets unlocked after a mount fails. This
+ is a goto to avoid bloating the driver with redundant code. */
+clean_up_and_return:
+ cdinfo(CD_WARNING, "open failed.\n");
+ if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) {
+ cdo->lock_door(cdi, 0);
+ cdinfo(CD_OPEN, "door unlocked.\n");
+ }
+ return ret;
+}
+
+/* This code is similar to that in open_for_data. The routine is called
+ whenever an audio play operation is requested.
+*/
+int check_for_audio_disc(struct cdrom_device_info * cdi,
+ struct cdrom_device_ops * cdo)
+{
+ int ret;
+ tracktype tracks;
+ cdinfo(CD_OPEN, "entering check_for_audio_disc\n");
+ if (!(cdi->options & CDO_CHECK_TYPE))
+ return 0;
+ if (cdo->drive_status != NULL) {
+ ret = cdo->drive_status(cdi, CDSL_CURRENT);
+ cdinfo(CD_OPEN, "drive_status=%d\n", ret);
+ if (ret == CDS_TRAY_OPEN) {
+ cdinfo(CD_OPEN, "the tray is open...\n");
+ /* can/may i close it? */
+ if (CDROM_CAN(CDC_CLOSE_TRAY) &&
+ cdi->options & CDO_AUTO_CLOSE) {
+ cdinfo(CD_OPEN, "trying to close the tray.\n");
+ ret=cdo->tray_move(cdi,0);
+ if (ret) {
+ cdinfo(CD_OPEN, "bummer. tried to close tray but failed.\n");
+ /* Ignore the error from the low
+ level driver. We don't care why it
+ couldn't close the tray. We only care
+ that there is no disc in the drive,
+ since that is the _REAL_ problem here.*/
+ return -ENOMEDIUM;
+ }
+ } else {
+ cdinfo(CD_OPEN, "bummer. this driver can't close the tray.\n");
+ return -ENOMEDIUM;
+ }
+ /* Ok, the door should be closed now.. Check again */
+ ret = cdo->drive_status(cdi, CDSL_CURRENT);
+ if ((ret == CDS_NO_DISC) || (ret==CDS_TRAY_OPEN)) {
+ cdinfo(CD_OPEN, "bummer. the tray is still not closed.\n");
+ return -ENOMEDIUM;
+ }
+ if (ret!=CDS_DISC_OK) {
+ cdinfo(CD_OPEN, "bummer. disc isn't ready.\n");
+ return -EIO;
+ }
+ cdinfo(CD_OPEN, "the tray is now closed.\n");
+ }
+ }
+ cdrom_count_tracks(cdi, &tracks);
+ if (tracks.error)
+ return(tracks.error);
+
+ if (tracks.audio==0)
+ return -EMEDIUMTYPE;
+
+ return 0;
+}
+
+
+/* Admittedly, the logic below could be performed in a nicer way. */
+int cdrom_release(struct inode *ip, struct file *fp)
+{
+ kdev_t dev = ip->i_rdev;
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ struct cdrom_device_ops *cdo = cdi->ops;
+ int opened_for_data;
+
+ cdinfo(CD_CLOSE, "entering cdrom_release\n");
+
+ if (cdi->use_count > 0)
+ cdi->use_count--;
+ if (cdi->use_count == 0)
+ cdinfo(CD_CLOSE, "Use count for \"/dev/%s\" now zero\n", cdi->name);
+ if (cdi->use_count == 0 &&
+ cdo->capability & CDC_LOCK && !keeplocked) {
+ cdinfo(CD_CLOSE, "Unlocking door!\n");
+ cdo->lock_door(cdi, 0);
+ }
+#if 0
+ opened_for_data = !(cdi->options & CDO_USE_FFLAGS) ||
+ !(fp && fp->f_flags & O_NONBLOCK);
+#else
+ opened_for_data = 1; /* XXX SMH: guess */
+#endif
+ cdo->release(cdi);
+ if (cdi->use_count == 0) { /* last process that closes dev*/
+ if (opened_for_data &&
+ cdi->options & CDO_AUTO_EJECT && CDROM_CAN(CDC_OPEN_TRAY))
+ cdo->tray_move(cdi, 1);
+ }
+ return 0;
+}
+
+static int cdrom_read_mech_status(struct cdrom_device_info *cdi,
+ struct cdrom_changer_info *buf)
+{
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+ int length;
+
+ /*
+ * Sanyo changer isn't spec compliant (doesn't use regular change
+ * LOAD_UNLOAD command, and it doesn't implement the mech status
+ * command below
+ */
+ if (cdi->sanyo_slot) {
+ buf->hdr.nslots = 3;
+ buf->hdr.curslot = cdi->sanyo_slot == 3 ? 0 : cdi->sanyo_slot;
+ for (length = 0; length < 3; length++) {
+ buf->slots[length].disc_present = 1;
+ buf->slots[length].change = 0;
+ }
+ return 0;
+ }
+
+ length = sizeof(struct cdrom_mechstat_header) +
+ cdi->capacity * sizeof(struct cdrom_slot);
+
+ init_cdrom_command(&cgc, buf, length, CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_MECHANISM_STATUS;
+ cgc.cmd[8] = (length >> 8) & 0xff;
+ cgc.cmd[9] = length & 0xff;
+ return cdo->generic_packet(cdi, &cgc);
+}
+
+static int cdrom_slot_status(struct cdrom_device_info *cdi, int slot)
+{
+ struct cdrom_changer_info info;
+ int ret;
+
+ cdinfo(CD_CHANGER, "entering cdrom_slot_status()\n");
+ if (cdi->sanyo_slot)
+ return CDS_NO_INFO;
+
+ if ((ret = cdrom_read_mech_status(cdi, &info)))
+ return ret;
+
+ if (info.slots[slot].disc_present)
+ return CDS_DISC_OK;
+ else
+ return CDS_NO_DISC;
+
+}
+
+/* Return the number of slots for an ATAPI/SCSI cdrom,
+ * return 1 if not a changer.
+ */
+int cdrom_number_of_slots(struct cdrom_device_info *cdi)
+{
+ int status;
+ int nslots = 1;
+ struct cdrom_changer_info info;
+
+ cdinfo(CD_CHANGER, "entering cdrom_number_of_slots()\n");
+ /* cdrom_read_mech_status requires a valid value for capacity: */
+ cdi->capacity = 0;
+
+ if ((status = cdrom_read_mech_status(cdi, &info)) == 0)
+ nslots = info.hdr.nslots;
+
+ return nslots;
+}
+
+
+/* If SLOT < 0, unload the current slot. Otherwise, try to load SLOT. */
+static int cdrom_load_unload(struct cdrom_device_info *cdi, int slot)
+{
+ struct cdrom_generic_command cgc;
+
+ cdinfo(CD_CHANGER, "entering cdrom_load_unload()\n");
+ if (cdi->sanyo_slot && slot < 0)
+ return 0;
+
+ init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
+ cgc.cmd[0] = GPCMD_LOAD_UNLOAD;
+ cgc.cmd[4] = 2 + (slot >= 0);
+ cgc.cmd[8] = slot;
+
+ /* The Sanyo 3 CD changer uses byte 7 of the
+ GPCMD_TEST_UNIT_READY to command to switch CDs instead of
+ using the GPCMD_LOAD_UNLOAD opcode. */
+ if (cdi->sanyo_slot && -1 < slot) {
+ cgc.cmd[0] = GPCMD_TEST_UNIT_READY;
+ cgc.cmd[7] = slot;
+ cgc.cmd[4] = cgc.cmd[8] = 0;
+ cdi->sanyo_slot = slot ? slot : 3;
+ }
+
+ return cdi->ops->generic_packet(cdi, &cgc);
+}
+
+int cdrom_select_disc(struct cdrom_device_info *cdi, int slot)
+{
+ struct cdrom_changer_info info;
+ int curslot;
+ int ret;
+
+ cdinfo(CD_CHANGER, "entering cdrom_select_disc()\n");
+ if (!CDROM_CAN(CDC_SELECT_DISC))
+ return -EDRIVE_CANT_DO_THIS;
+
+ (void) cdi->ops->media_changed(cdi, slot);
+
+ if (slot == CDSL_NONE) {
+ /* set media changed bits, on both queues */
+ cdi->mc_flags = 0x3;
+ return cdrom_load_unload(cdi, -1);
+ }
+
+ if ((ret = cdrom_read_mech_status(cdi, &info)))
+ return ret;
+
+ curslot = info.hdr.curslot;
+
+ if (cdi->use_count > 1 || keeplocked) {
+ if (slot == CDSL_CURRENT) {
+ return curslot;
+ } else {
+ return -EBUSY;
+ }
+ }
+
+ /* Specifying CDSL_CURRENT will attempt to load the currnet slot,
+ which is useful if it had been previously unloaded.
+ Whether it can or not, it returns the current slot.
+ Similarly, if slot happens to be the current one, we still
+ try and load it. */
+ if (slot == CDSL_CURRENT)
+ slot = curslot;
+
+ /* set media changed bits on both queues */
+ cdi->mc_flags = 0x3;
+ if ((ret = cdrom_load_unload(cdi, slot)))
+ return ret;
+
+ return slot;
+}
+
+/* We want to make media_changed accessible to the user through an
+ * ioctl. The main problem now is that we must double-buffer the
+ * low-level implementation, to assure that the VFS and the user both
+ * see a medium change once.
+ */
+
+static
+int media_changed(struct cdrom_device_info *cdi, int queue)
+{
+ unsigned int mask = (1 << (queue & 1));
+ int ret = !!(cdi->mc_flags & mask);
+
+ if (!CDROM_CAN(CDC_MEDIA_CHANGED))
+ return ret;
+ /* changed since last call? */
+ if (cdi->ops->media_changed(cdi, CDSL_CURRENT)) {
+ cdi->mc_flags = 0x3; /* set bit on both queues */
+ ret |= 1;
+ }
+ cdi->mc_flags &= ~mask; /* clear bit */
+ return ret;
+}
+
+int cdrom_media_changed(kdev_t dev)
+{
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ /* This talks to the VFS, which doesn't like errors - just 1 or 0.
+ * Returning "0" is always safe (media hasn't been changed). Do that
+ * if the low-level cdrom driver dosn't support media changed. */
+ if (cdi == NULL || cdi->ops->media_changed == NULL)
+ return 0;
+ if (!CDROM_CAN(CDC_MEDIA_CHANGED))
+ return 0;
+ return media_changed(cdi, 0);
+}
+
+/* badly broken, I know. Is due for a fixup anytime. */
+void cdrom_count_tracks(struct cdrom_device_info *cdi, tracktype* tracks)
+{
+ struct cdrom_tochdr header;
+ struct cdrom_tocentry entry;
+ int ret, i;
+ tracks->data=0;
+ tracks->audio=0;
+ tracks->cdi=0;
+ tracks->xa=0;
+ tracks->error=0;
+ cdinfo(CD_COUNT_TRACKS, "entering cdrom_count_tracks\n");
+ if (!CDROM_CAN(CDC_PLAY_AUDIO)) {
+ tracks->error=CDS_NO_INFO;
+ return;
+ }
+ /* Grab the TOC header so we can see how many tracks there are */
+ if ((ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header))) {
+ if (ret == -ENOMEDIUM)
+ tracks->error = CDS_NO_DISC;
+ else
+ tracks->error = CDS_NO_INFO;
+ return;
+ }
+ /* check what type of tracks are on this disc */
+ entry.cdte_format = CDROM_MSF;
+ for (i = header.cdth_trk0; i <= header.cdth_trk1; i++) {
+ entry.cdte_track = i;
+ if (cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &entry)) {
+ tracks->error=CDS_NO_INFO;
+ return;
+ }
+ if (entry.cdte_ctrl & CDROM_DATA_TRACK) {
+ if (entry.cdte_format == 0x10)
+ tracks->cdi++;
+ else if (entry.cdte_format == 0x20)
+ tracks->xa++;
+ else
+ tracks->data++;
+ } else
+ tracks->audio++;
+ cdinfo(CD_COUNT_TRACKS, "track %d: format=%d, ctrl=%d\n",
+ i, entry.cdte_format, entry.cdte_ctrl);
+ }
+ cdinfo(CD_COUNT_TRACKS, "disc has %d tracks: %d=audio %d=data %d=Cd-I %d=XA\n",
+ header.cdth_trk1, tracks->audio, tracks->data,
+ tracks->cdi, tracks->xa);
+}
+
+/* Requests to the low-level drivers will /always/ be done in the
+ following format convention:
+
+ CDROM_LBA: all data-related requests.
+ CDROM_MSF: all audio-related requests.
+
+ However, a low-level implementation is allowed to refuse this
+ request, and return information in its own favorite format.
+
+ It doesn't make sense /at all/ to ask for a play_audio in LBA
+ format, or ask for multi-session info in MSF format. However, for
+ backward compatibility these format requests will be satisfied, but
+ the requests to the low-level drivers will be sanitized in the more
+ meaningful format indicated above.
+ */
+
+static
+void sanitize_format(union cdrom_addr *addr,
+ u_char * curr, u_char requested)
+{
+ if (*curr == requested)
+ return; /* nothing to be done! */
+ if (requested == CDROM_LBA) {
+ addr->lba = (int) addr->msf.frame +
+ 75 * (addr->msf.second - 2 + 60 * addr->msf.minute);
+ } else { /* CDROM_MSF */
+ int lba = addr->lba;
+ addr->msf.frame = lba % 75;
+ lba /= 75;
+ lba += 2;
+ addr->msf.second = lba % 60;
+ addr->msf.minute = lba / 60;
+ }
+ *curr = requested;
+}
+
+void init_cdrom_command(struct cdrom_generic_command *cgc, void *buf, int len,
+ int type)
+{
+ memset(cgc, 0, sizeof(struct cdrom_generic_command));
+ if (buf)
+ memset(buf, 0, len);
+ cgc->buffer = (char *) buf;
+ cgc->buflen = len;
+ cgc->data_direction = type;
+ cgc->timeout = 5*HZ;
+}
+
+/* DVD handling */
+
+#define copy_key(dest,src) memcpy((dest), (src), sizeof(dvd_key))
+#define copy_chal(dest,src) memcpy((dest), (src), sizeof(dvd_challenge))
+
+static void setup_report_key(struct cdrom_generic_command *cgc, unsigned agid, unsigned type)
+{
+ cgc->cmd[0] = GPCMD_REPORT_KEY;
+ cgc->cmd[10] = type | (agid << 6);
+ switch (type) {
+ case 0: case 8: case 5: {
+ cgc->buflen = 8;
+ break;
+ }
+ case 1: {
+ cgc->buflen = 16;
+ break;
+ }
+ case 2: case 4: {
+ cgc->buflen = 12;
+ break;
+ }
+ }
+ cgc->cmd[9] = cgc->buflen;
+ cgc->data_direction = CGC_DATA_READ;
+}
+
+static void setup_send_key(struct cdrom_generic_command *cgc, unsigned agid, unsigned type)
+{
+ cgc->cmd[0] = GPCMD_SEND_KEY;
+ cgc->cmd[10] = type | (agid << 6);
+ switch (type) {
+ case 1: {
+ cgc->buflen = 16;
+ break;
+ }
+ case 3: {
+ cgc->buflen = 12;
+ break;
+ }
+ case 6: {
+ cgc->buflen = 8;
+ break;
+ }
+ }
+ cgc->cmd[9] = cgc->buflen;
+ cgc->data_direction = CGC_DATA_WRITE;
+}
+
+static int dvd_do_auth(struct cdrom_device_info *cdi, dvd_authinfo *ai)
+{
+ int ret;
+ u_char buf[20];
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+ rpc_state_t rpc_state;
+
+ memset(buf, 0, sizeof(buf));
+ init_cdrom_command(&cgc, buf, 0, CGC_DATA_READ);
+
+ switch (ai->type) {
+ /* LU data send */
+ case DVD_LU_SEND_AGID:
+ cdinfo(CD_DVD, "entering DVD_LU_SEND_AGID\n");
+ setup_report_key(&cgc, ai->lsa.agid, 0);
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ ai->lsa.agid = buf[7] >> 6;
+ /* Returning data, let host change state */
+ break;
+
+ case DVD_LU_SEND_KEY1:
+ cdinfo(CD_DVD, "entering DVD_LU_SEND_KEY1\n");
+ setup_report_key(&cgc, ai->lsk.agid, 2);
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ copy_key(ai->lsk.key, &buf[4]);
+ /* Returning data, let host change state */
+ break;
+
+ case DVD_LU_SEND_CHALLENGE:
+ cdinfo(CD_DVD, "entering DVD_LU_SEND_CHALLENGE\n");
+ setup_report_key(&cgc, ai->lsc.agid, 1);
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ copy_chal(ai->lsc.chal, &buf[4]);
+ /* Returning data, let host change state */
+ break;
+
+ /* Post-auth key */
+ case DVD_LU_SEND_TITLE_KEY:
+ cdinfo(CD_DVD, "entering DVD_LU_SEND_TITLE_KEY\n");
+ setup_report_key(&cgc, ai->lstk.agid, 4);
+ cgc.cmd[5] = ai->lstk.lba;
+ cgc.cmd[4] = ai->lstk.lba >> 8;
+ cgc.cmd[3] = ai->lstk.lba >> 16;
+ cgc.cmd[2] = ai->lstk.lba >> 24;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ ai->lstk.cpm = (buf[4] >> 7) & 1;
+ ai->lstk.cp_sec = (buf[4] >> 6) & 1;
+ ai->lstk.cgms = (buf[4] >> 4) & 3;
+ copy_key(ai->lstk.title_key, &buf[5]);
+ /* Returning data, let host change state */
+ break;
+
+ case DVD_LU_SEND_ASF:
+ cdinfo(CD_DVD, "entering DVD_LU_SEND_ASF\n");
+ setup_report_key(&cgc, ai->lsasf.agid, 5);
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ ai->lsasf.asf = buf[7] & 1;
+ break;
+
+ /* LU data receive (LU changes state) */
+ case DVD_HOST_SEND_CHALLENGE:
+ cdinfo(CD_DVD, "entering DVD_HOST_SEND_CHALLENGE\n");
+ setup_send_key(&cgc, ai->hsc.agid, 1);
+ buf[1] = 0xe;
+ copy_chal(&buf[4], ai->hsc.chal);
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ ai->type = DVD_LU_SEND_KEY1;
+ break;
+
+ case DVD_HOST_SEND_KEY2:
+ cdinfo(CD_DVD, "entering DVD_HOST_SEND_KEY2\n");
+ setup_send_key(&cgc, ai->hsk.agid, 3);
+ buf[1] = 0xa;
+ copy_key(&buf[4], ai->hsk.key);
+
+ if ((ret = cdo->generic_packet(cdi, &cgc))) {
+ ai->type = DVD_AUTH_FAILURE;
+ return ret;
+ }
+ ai->type = DVD_AUTH_ESTABLISHED;
+ break;
+
+ /* Misc */
+ case DVD_INVALIDATE_AGID:
+ cdinfo(CD_DVD, "entering DVD_INVALIDATE_AGID\n");
+ setup_report_key(&cgc, ai->lsa.agid, 0x3f);
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+ break;
+
+ /* Get region settings */
+ case DVD_LU_SEND_RPC_STATE:
+ cdinfo(CD_DVD, "entering DVD_LU_SEND_RPC_STATE\n");
+ setup_report_key(&cgc, 0, 8);
+ memset(&rpc_state, 0, sizeof(rpc_state_t));
+ cgc.buffer = (char *) &rpc_state;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ ai->lrpcs.type = rpc_state.type_code;
+ ai->lrpcs.vra = rpc_state.vra;
+ ai->lrpcs.ucca = rpc_state.ucca;
+ ai->lrpcs.region_mask = rpc_state.region_mask;
+ ai->lrpcs.rpc_scheme = rpc_state.rpc_scheme;
+ break;
+
+ /* Set region settings */
+ case DVD_HOST_SEND_RPC_STATE:
+ cdinfo(CD_DVD, "entering DVD_HOST_SEND_RPC_STATE\n");
+ setup_send_key(&cgc, 0, 6);
+ buf[1] = 6;
+ buf[4] = ai->hrpcs.pdrc;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+ break;
+
+ default:
+ cdinfo(CD_WARNING, "Invalid DVD key ioctl (%d)\n", ai->type);
+ return -ENOTTY;
+ }
+
+ return 0;
+}
+
+static int dvd_read_physical(struct cdrom_device_info *cdi, dvd_struct *s)
+{
+ unsigned char buf[20], *base;
+ struct dvd_layer *layer;
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+ int ret, layer_num = s->physical.layer_num;
+
+ if (layer_num >= DVD_LAYERS)
+ return -EINVAL;
+
+ init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
+ cgc.cmd[6] = layer_num;
+ cgc.cmd[7] = s->type;
+ cgc.cmd[9] = cgc.buflen & 0xff;
+
+ /*
+ * refrain from reporting errors on non-existing layers (mainly)
+ */
+ cgc.quiet = 1;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ base = &buf[4];
+ layer = &s->physical.layer[layer_num];
+
+ /*
+ * place the data... really ugly, but at least we won't have to
+ * worry about endianess in userspace.
+ */
+ memset(layer, 0, sizeof(*layer));
+ layer->book_version = base[0] & 0xf;
+ layer->book_type = base[0] >> 4;
+ layer->min_rate = base[1] & 0xf;
+ layer->disc_size = base[1] >> 4;
+ layer->layer_type = base[2] & 0xf;
+ layer->track_path = (base[2] >> 4) & 1;
+ layer->nlayers = (base[2] >> 5) & 3;
+ layer->track_density = base[3] & 0xf;
+ layer->linear_density = base[3] >> 4;
+ layer->start_sector = base[5] << 16 | base[6] << 8 | base[7];
+ layer->end_sector = base[9] << 16 | base[10] << 8 | base[11];
+ layer->end_sector_l0 = base[13] << 16 | base[14] << 8 | base[15];
+ layer->bca = base[16] >> 7;
+
+ return 0;
+}
+
+static int dvd_read_copyright(struct cdrom_device_info *cdi, dvd_struct *s)
+{
+ int ret;
+ u_char buf[8];
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
+ cgc.cmd[6] = s->copyright.layer_num;
+ cgc.cmd[7] = s->type;
+ cgc.cmd[8] = cgc.buflen >> 8;
+ cgc.cmd[9] = cgc.buflen & 0xff;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ s->copyright.cpst = buf[4];
+ s->copyright.rmi = buf[5];
+
+ return 0;
+}
+
+static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s)
+{
+ int ret, size;
+ u_char *buf;
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ size = sizeof(s->disckey.value) + 4;
+
+ if ((buf = (u_char *) kmalloc(size, GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buf, size, CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
+ cgc.cmd[7] = s->type;
+ cgc.cmd[8] = size >> 8;
+ cgc.cmd[9] = size & 0xff;
+ cgc.cmd[10] = s->disckey.agid << 6;
+
+ if (!(ret = cdo->generic_packet(cdi, &cgc)))
+ memcpy(s->disckey.value, &buf[4], sizeof(s->disckey.value));
+
+ kfree(buf);
+ return ret;
+}
+
+static int dvd_read_bca(struct cdrom_device_info *cdi, dvd_struct *s)
+{
+ int ret;
+ u_char buf[4 + 188];
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
+ cgc.cmd[7] = s->type;
+ cgc.cmd[9] = cgc.buflen = 0xff;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ s->bca.len = buf[0] << 8 | buf[1];
+ if (s->bca.len < 12 || s->bca.len > 188) {
+ cdinfo(CD_WARNING, "Received invalid BCA length (%d)\n", s->bca.len);
+ return -EIO;
+ }
+ memcpy(s->bca.value, &buf[4], s->bca.len);
+
+ return 0;
+}
+
+static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s)
+{
+ int ret = 0, size;
+ u_char *buf;
+ struct cdrom_generic_command cgc;
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ size = sizeof(s->manufact.value) + 4;
+
+ if ((buf = (u_char *) kmalloc(size, GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+
+ init_cdrom_command(&cgc, buf, size, CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DVD_STRUCTURE;
+ cgc.cmd[7] = s->type;
+ cgc.cmd[8] = size >> 8;
+ cgc.cmd[9] = size & 0xff;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc))) {
+ kfree(buf);
+ return ret;
+ }
+
+ s->manufact.len = buf[0] << 8 | buf[1];
+ if (s->manufact.len < 0 || s->manufact.len > 2048) {
+ cdinfo(CD_WARNING, "Received invalid manufacture info length"
+ " (%d)\n", s->bca.len);
+ ret = -EIO;
+ } else {
+ memcpy(s->manufact.value, &buf[4], s->manufact.len);
+ }
+
+ kfree(buf);
+ return ret;
+}
+
+static int dvd_read_struct(struct cdrom_device_info *cdi, dvd_struct *s)
+{
+ switch (s->type) {
+ case DVD_STRUCT_PHYSICAL:
+ return dvd_read_physical(cdi, s);
+
+ case DVD_STRUCT_COPYRIGHT:
+ return dvd_read_copyright(cdi, s);
+
+ case DVD_STRUCT_DISCKEY:
+ return dvd_read_disckey(cdi, s);
+
+ case DVD_STRUCT_BCA:
+ return dvd_read_bca(cdi, s);
+
+ case DVD_STRUCT_MANUFACT:
+ return dvd_read_manufact(cdi, s);
+
+ default:
+ cdinfo(CD_WARNING, ": Invalid DVD structure read requested (%d)\n",
+ s->type);
+ return -EINVAL;
+ }
+}
+
+int cdrom_mode_sense(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc,
+ int page_code, int page_control)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ memset(cgc->cmd, 0, sizeof(cgc->cmd));
+
+ cgc->cmd[0] = GPCMD_MODE_SENSE_10;
+ cgc->cmd[2] = page_code | (page_control << 6);
+ cgc->cmd[7] = cgc->buflen >> 8;
+ cgc->cmd[8] = cgc->buflen & 0xff;
+ cgc->data_direction = CGC_DATA_READ;
+ return cdo->generic_packet(cdi, cgc);
+}
+
+int cdrom_mode_select(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ memset(cgc->cmd, 0, sizeof(cgc->cmd));
+ memset(cgc->buffer, 0, 2);
+ cgc->cmd[0] = GPCMD_MODE_SELECT_10;
+ cgc->cmd[1] = 0x10; /* PF */
+ cgc->cmd[7] = cgc->buflen >> 8;
+ cgc->cmd[8] = cgc->buflen & 0xff;
+ cgc->data_direction = CGC_DATA_WRITE;
+ return cdo->generic_packet(cdi, cgc);
+}
+
+static int cdrom_read_subchannel(struct cdrom_device_info *cdi,
+ struct cdrom_subchnl *subchnl, int mcn)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+ struct cdrom_generic_command cgc;
+ char buffer[32];
+ int ret;
+
+ init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_SUBCHANNEL;
+ cgc.cmd[1] = 2; /* MSF addressing */
+ cgc.cmd[2] = 0x40; /* request subQ data */
+ cgc.cmd[3] = mcn ? 2 : 1;
+ cgc.cmd[8] = 16;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ subchnl->cdsc_audiostatus = cgc.buffer[1];
+ subchnl->cdsc_format = CDROM_MSF;
+ subchnl->cdsc_ctrl = cgc.buffer[5] & 0xf;
+ subchnl->cdsc_trk = cgc.buffer[6];
+ subchnl->cdsc_ind = cgc.buffer[7];
+
+ subchnl->cdsc_reladdr.msf.minute = cgc.buffer[13];
+ subchnl->cdsc_reladdr.msf.second = cgc.buffer[14];
+ subchnl->cdsc_reladdr.msf.frame = cgc.buffer[15];
+ subchnl->cdsc_absaddr.msf.minute = cgc.buffer[9];
+ subchnl->cdsc_absaddr.msf.second = cgc.buffer[10];
+ subchnl->cdsc_absaddr.msf.frame = cgc.buffer[11];
+
+ return 0;
+}
+
+/*
+ * Specific READ_10 interface
+ */
+static int cdrom_read_cd(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc, int lba,
+ int blocksize, int nblocks)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ memset(&cgc->cmd, 0, sizeof(cgc->cmd));
+ cgc->cmd[0] = GPCMD_READ_10;
+ cgc->cmd[2] = (lba >> 24) & 0xff;
+ cgc->cmd[3] = (lba >> 16) & 0xff;
+ cgc->cmd[4] = (lba >> 8) & 0xff;
+ cgc->cmd[5] = lba & 0xff;
+ cgc->cmd[6] = (nblocks >> 16) & 0xff;
+ cgc->cmd[7] = (nblocks >> 8) & 0xff;
+ cgc->cmd[8] = nblocks & 0xff;
+ cgc->buflen = blocksize * nblocks;
+ return cdo->generic_packet(cdi, cgc);
+}
+
+/* very generic interface for reading the various types of blocks */
+static int cdrom_read_block(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc,
+ int lba, int nblocks, int format, int blksize)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+
+ memset(&cgc->cmd, 0, sizeof(cgc->cmd));
+ cgc->cmd[0] = GPCMD_READ_CD;
+ /* expected sector size - cdda,mode1,etc. */
+ cgc->cmd[1] = format << 2;
+ /* starting address */
+ cgc->cmd[2] = (lba >> 24) & 0xff;
+ cgc->cmd[3] = (lba >> 16) & 0xff;
+ cgc->cmd[4] = (lba >> 8) & 0xff;
+ cgc->cmd[5] = lba & 0xff;
+ /* number of blocks */
+ cgc->cmd[6] = (nblocks >> 16) & 0xff;
+ cgc->cmd[7] = (nblocks >> 8) & 0xff;
+ cgc->cmd[8] = nblocks & 0xff;
+ cgc->buflen = blksize * nblocks;
+
+ /* set the header info returned */
+ switch (blksize) {
+ case CD_FRAMESIZE_RAW0 : cgc->cmd[9] = 0x58; break;
+ case CD_FRAMESIZE_RAW1 : cgc->cmd[9] = 0x78; break;
+ case CD_FRAMESIZE_RAW : cgc->cmd[9] = 0xf8; break;
+ default : cgc->cmd[9] = 0x10;
+ }
+
+ return cdo->generic_packet(cdi, cgc);
+}
+
+/* Just about every imaginable ioctl is supported in the Uniform layer
+ * these days. ATAPI / SCSI specific code now mainly resides in
+ * mmc_ioct().
+ */
+int cdrom_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
+ unsigned long arg)
+{
+ kdev_t dev = ip->i_rdev;
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ struct cdrom_device_ops *cdo = cdi->ops;
+ int ret;
+
+ /* the first few commands do not deal with audio drive_info, but
+ only with routines in cdrom device operations. */
+ switch (cmd) {
+ case CDROMMULTISESSION: {
+ struct cdrom_multisession ms_info;
+ u_char requested_format;
+ cdinfo(CD_DO_IOCTL, "entering CDROMMULTISESSION\n");
+ if (!(cdo->capability & CDC_MULTI_SESSION))
+ return -ENOSYS;
+ IOCTL_IN(arg, struct cdrom_multisession, ms_info);
+ requested_format = ms_info.addr_format;
+ if (!((requested_format == CDROM_MSF) ||
+ (requested_format == CDROM_LBA)))
+ return -EINVAL;
+ ms_info.addr_format = CDROM_LBA;
+ if ((ret=cdo->get_last_session(cdi, &ms_info)))
+ return ret;
+ sanitize_format(&ms_info.addr, &ms_info.addr_format,
+ requested_format);
+ IOCTL_OUT(arg, struct cdrom_multisession, ms_info);
+ cdinfo(CD_DO_IOCTL, "CDROMMULTISESSION successful\n");
+ return 0;
+ }
+
+ case CDROMEJECT: {
+ cdinfo(CD_DO_IOCTL, "entering CDROMEJECT\n");
+ if (!CDROM_CAN(CDC_OPEN_TRAY))
+ return -ENOSYS;
+ if (cdi->use_count != 1 || keeplocked)
+ return -EBUSY;
+ if (CDROM_CAN(CDC_LOCK))
+ if ((ret=cdo->lock_door(cdi, 0)))
+ return ret;
+
+ return cdo->tray_move(cdi, 1);
+ }
+
+ case CDROMCLOSETRAY: {
+ cdinfo(CD_DO_IOCTL, "entering CDROMCLOSETRAY\n");
+ if (!CDROM_CAN(CDC_CLOSE_TRAY))
+ return -ENOSYS;
+ return cdo->tray_move(cdi, 0);
+ }
+
+ case CDROMEJECT_SW: {
+ cdinfo(CD_DO_IOCTL, "entering CDROMEJECT_SW\n");
+ if (!CDROM_CAN(CDC_OPEN_TRAY))
+ return -ENOSYS;
+ if (keeplocked)
+ return -EBUSY;
+ cdi->options &= ~(CDO_AUTO_CLOSE | CDO_AUTO_EJECT);
+ if (arg)
+ cdi->options |= CDO_AUTO_CLOSE | CDO_AUTO_EJECT;
+ return 0;
+ }
+
+ case CDROM_MEDIA_CHANGED: {
+ struct cdrom_changer_info info;
+
+ cdinfo(CD_DO_IOCTL, "entering CDROM_MEDIA_CHANGED\n");
+ if (!CDROM_CAN(CDC_MEDIA_CHANGED))
+ return -ENOSYS;
+
+ /* cannot select disc or select current disc */
+ if (!CDROM_CAN(CDC_SELECT_DISC) || arg == CDSL_CURRENT)
+ return media_changed(cdi, 1);
+
+ if ((unsigned int)arg >= cdi->capacity)
+ return -EINVAL;
+
+ if ((ret = cdrom_read_mech_status(cdi, &info)))
+ return ret;
+
+ return info.slots[arg].change;
+ }
+
+ case CDROM_SET_OPTIONS: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SET_OPTIONS\n");
+ /* options need to be in sync with capability. too late for
+ that, so we have to check each one separately... */
+ switch (arg) {
+ case CDO_USE_FFLAGS:
+ case CDO_CHECK_TYPE:
+ break;
+ case CDO_LOCK:
+ if (!CDROM_CAN(CDC_LOCK))
+ return -ENOSYS;
+ break;
+ case 0:
+ return cdi->options;
+ /* default is basically CDO_[AUTO_CLOSE|AUTO_EJECT] */
+ default:
+ if (!CDROM_CAN(arg))
+ return -ENOSYS;
+ }
+ cdi->options |= (int) arg;
+ return cdi->options;
+ }
+
+ case CDROM_CLEAR_OPTIONS: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_CLEAR_OPTIONS\n");
+ cdi->options &= ~(int) arg;
+ return cdi->options;
+ }
+
+ case CDROM_SELECT_SPEED: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_SPEED\n");
+ if (!CDROM_CAN(CDC_SELECT_SPEED))
+ return -ENOSYS;
+ return cdo->select_speed(cdi, arg);
+ }
+
+ case CDROM_SELECT_DISC: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SELECT_DISC\n");
+ if (!CDROM_CAN(CDC_SELECT_DISC))
+ return -ENOSYS;
+
+ if ((arg != CDSL_CURRENT) && (arg != CDSL_NONE))
+ if ((int)arg >= cdi->capacity)
+ return -EINVAL;
+
+ /* cdo->select_disc is a hook to allow a driver-specific
+ * way of seleting disc. However, since there is no
+ * equiv hook for cdrom_slot_status this may not
+ * actually be useful...
+ */
+ if (cdo->select_disc != NULL)
+ return cdo->select_disc(cdi, arg);
+
+ /* no driver specific select_disc(), call our own */
+ cdinfo(CD_CHANGER, "Using generic cdrom_select_disc()\n");
+ return cdrom_select_disc(cdi, arg);
+ }
+
+ case CDROMRESET: {
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_RESET\n");
+ if (!CDROM_CAN(CDC_RESET))
+ return -ENOSYS;
+ return cdo->reset(cdi);
+ }
+
+ case CDROM_LOCKDOOR: {
+ cdinfo(CD_DO_IOCTL, "%socking door.\n", arg ? "L" : "Unl");
+ if (!CDROM_CAN(CDC_LOCK))
+ return -EDRIVE_CANT_DO_THIS;
+ keeplocked = arg ? 1 : 0;
+ /* don't unlock the door on multiple opens,but allow root
+ * to do so */
+ if ((cdi->use_count != 1) && !arg && !capable(CAP_SYS_ADMIN))
+ return -EBUSY;
+ return cdo->lock_door(cdi, arg);
+ }
+
+ case CDROM_DEBUG: {
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+ cdinfo(CD_DO_IOCTL, "%sabling debug.\n", arg ? "En" : "Dis");
+ debug = arg ? 1 : 0;
+ return debug;
+ }
+
+ case CDROM_GET_CAPABILITY: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_GET_CAPABILITY\n");
+ return (cdo->capability & ~cdi->mask);
+ }
+
+/* The following function is implemented, although very few audio
+ * discs give Universal Product Code information, which should just be
+ * the Medium Catalog Number on the box. Note, that the way the code
+ * is written on the CD is /not/ uniform across all discs!
+ */
+ case CDROM_GET_MCN: {
+ struct cdrom_mcn mcn;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_GET_MCN\n");
+ if (!(cdo->capability & CDC_MCN))
+ return -ENOSYS;
+ if ((ret=cdo->get_mcn(cdi, &mcn)))
+ return ret;
+ IOCTL_OUT(arg, struct cdrom_mcn, mcn);
+ cdinfo(CD_DO_IOCTL, "CDROM_GET_MCN successful\n");
+ return 0;
+ }
+
+ case CDROM_DRIVE_STATUS: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_DRIVE_STATUS\n");
+ if (!(cdo->capability & CDC_DRIVE_STATUS))
+ return -ENOSYS;
+ if (!CDROM_CAN(CDC_SELECT_DISC))
+ return cdo->drive_status(cdi, CDSL_CURRENT);
+ if ((arg == CDSL_CURRENT) || (arg == CDSL_NONE))
+ return cdo->drive_status(cdi, CDSL_CURRENT);
+ if (((int)arg >= cdi->capacity))
+ return -EINVAL;
+ return cdrom_slot_status(cdi, arg);
+ }
+
+ /* Ok, this is where problems start. The current interface for the
+ CDROM_DISC_STATUS ioctl is flawed. It makes the false assumption
+ that CDs are all CDS_DATA_1 or all CDS_AUDIO, etc. Unfortunatly,
+ while this is often the case, it is also very common for CDs to
+ have some tracks with data, and some tracks with audio. Just
+ because I feel like it, I declare the following to be the best
+ way to cope. If the CD has ANY data tracks on it, it will be
+ returned as a data CD. If it has any XA tracks, I will return
+ it as that. Now I could simplify this interface by combining these
+ returns with the above, but this more clearly demonstrates
+ the problem with the current interface. Too bad this wasn't
+ designed to use bitmasks... -Erik
+
+ Well, now we have the option CDS_MIXED: a mixed-type CD.
+ User level programmers might feel the ioctl is not very useful.
+ ---david
+ */
+ case CDROM_DISC_STATUS: {
+ tracktype tracks;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_DISC_STATUS\n");
+ cdrom_count_tracks(cdi, &tracks);
+ if (tracks.error)
+ return(tracks.error);
+
+ /* Policy mode on */
+ if (tracks.audio > 0) {
+ if (tracks.data==0 && tracks.cdi==0 && tracks.xa==0)
+ return CDS_AUDIO;
+ else
+ return CDS_MIXED;
+ }
+ if (tracks.cdi > 0) return CDS_XA_2_2;
+ if (tracks.xa > 0) return CDS_XA_2_1;
+ if (tracks.data > 0) return CDS_DATA_1;
+ /* Policy mode off */
+
+ cdinfo(CD_WARNING,"This disc doesn't have any tracks I recognize!\n");
+ return CDS_NO_INFO;
+ }
+
+ case CDROM_CHANGER_NSLOTS: {
+ cdinfo(CD_DO_IOCTL, "entering CDROM_CHANGER_NSLOTS\n");
+ return cdi->capacity;
+ }
+ }
+
+ /* use the ioctls that are implemented through the generic_packet()
+ interface. this may look at bit funny, but if -ENOTTY is
+ returned that particular ioctl is not implemented and we
+ let it go through the device specific ones. */
+ if (CDROM_CAN(CDC_GENERIC_PACKET)) {
+ ret = mmc_ioctl(cdi, cmd, arg);
+ if (ret != -ENOTTY) {
+ return ret;
+ }
+ }
+
+ /* note: most of the cdinfo() calls are commented out here,
+ because they fill up the sys log when CD players poll
+ the drive. */
+ switch (cmd) {
+ case CDROMSUBCHNL: {
+ struct cdrom_subchnl q;
+ u_char requested, back;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ /* cdinfo(CD_DO_IOCTL,"entering CDROMSUBCHNL\n");*/
+ IOCTL_IN(arg, struct cdrom_subchnl, q);
+ requested = q.cdsc_format;
+ if (!((requested == CDROM_MSF) ||
+ (requested == CDROM_LBA)))
+ return -EINVAL;
+ q.cdsc_format = CDROM_MSF;
+ if ((ret=cdo->audio_ioctl(cdi, cmd, &q)))
+ return ret;
+ back = q.cdsc_format; /* local copy */
+ sanitize_format(&q.cdsc_absaddr, &back, requested);
+ sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested);
+ IOCTL_OUT(arg, struct cdrom_subchnl, q);
+ /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */
+ return 0;
+ }
+ case CDROMREADTOCHDR: {
+ struct cdrom_tochdr header;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCHDR\n"); */
+ IOCTL_IN(arg, struct cdrom_tochdr, header);
+ if ((ret=cdo->audio_ioctl(cdi, cmd, &header)))
+ return ret;
+ IOCTL_OUT(arg, struct cdrom_tochdr, header);
+ /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCHDR successful\n"); */
+ return 0;
+ }
+ case CDROMREADTOCENTRY: {
+ struct cdrom_tocentry entry;
+ u_char requested_format;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ /* cdinfo(CD_DO_IOCTL, "entering CDROMREADTOCENTRY\n"); */
+ IOCTL_IN(arg, struct cdrom_tocentry, entry);
+ requested_format = entry.cdte_format;
+ if (!((requested_format == CDROM_MSF) ||
+ (requested_format == CDROM_LBA)))
+ return -EINVAL;
+ /* make interface to low-level uniform */
+ entry.cdte_format = CDROM_MSF;
+ if ((ret=cdo->audio_ioctl(cdi, cmd, &entry)))
+ return ret;
+ sanitize_format(&entry.cdte_addr,
+ &entry.cdte_format, requested_format);
+ IOCTL_OUT(arg, struct cdrom_tocentry, entry);
+ /* cdinfo(CD_DO_IOCTL, "CDROMREADTOCENTRY successful\n"); */
+ return 0;
+ }
+ case CDROMPLAYMSF: {
+ struct cdrom_msf msf;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n");
+ IOCTL_IN(arg, struct cdrom_msf, msf);
+ return cdo->audio_ioctl(cdi, cmd, &msf);
+ }
+ case CDROMPLAYTRKIND: {
+ struct cdrom_ti ti;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "entering CDROMPLAYTRKIND\n");
+ IOCTL_IN(arg, struct cdrom_ti, ti);
+ CHECKAUDIO;
+ return cdo->audio_ioctl(cdi, cmd, &ti);
+ }
+ case CDROMVOLCTRL: {
+ struct cdrom_volctrl volume;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "entering CDROMVOLCTRL\n");
+ IOCTL_IN(arg, struct cdrom_volctrl, volume);
+ return cdo->audio_ioctl(cdi, cmd, &volume);
+ }
+ case CDROMVOLREAD: {
+ struct cdrom_volctrl volume;
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "entering CDROMVOLREAD\n");
+ if ((ret=cdo->audio_ioctl(cdi, cmd, &volume)))
+ return ret;
+ IOCTL_OUT(arg, struct cdrom_volctrl, volume);
+ return 0;
+ }
+ case CDROMSTART:
+ case CDROMSTOP:
+ case CDROMPAUSE:
+ case CDROMRESUME: {
+ if (!CDROM_CAN(CDC_PLAY_AUDIO))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "doing audio ioctl (start/stop/pause/resume)\n");
+ CHECKAUDIO;
+ return cdo->audio_ioctl(cdi, cmd, NULL);
+ }
+ } /* switch */
+
+ /* do the device specific ioctls */
+ if (CDROM_CAN(CDC_IOCTLS))
+ return cdo->dev_ioctl(cdi, cmd, arg);
+
+ return -ENOSYS;
+}
+
+static inline
+int msf_to_lba(char m, char s, char f)
+{
+ return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
+}
+
+/*
+ * Required when we need to use READ_10 to issue other than 2048 block
+ * reads
+ */
+static int cdrom_switch_blocksize(struct cdrom_device_info *cdi, int size)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+ struct cdrom_generic_command cgc;
+ struct modesel_head mh;
+
+ memset(&mh, 0, sizeof(mh));
+ mh.block_desc_length = 0x08;
+ mh.block_length_med = (size >> 8) & 0xff;
+ mh.block_length_lo = size & 0xff;
+
+ memset(&cgc, 0, sizeof(cgc));
+ cgc.cmd[0] = 0x15;
+ cgc.cmd[1] = 1 << 4;
+ cgc.cmd[4] = 12;
+ cgc.buflen = sizeof(mh);
+ cgc.buffer = (char *) &mh;
+ cgc.data_direction = CGC_DATA_WRITE;
+ mh.block_desc_length = 0x08;
+ mh.block_length_med = (size >> 8) & 0xff;
+ mh.block_length_lo = size & 0xff;
+
+ return cdo->generic_packet(cdi, &cgc);
+}
+
+static int cdrom_do_cmd(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc)
+{
+ struct request_sense *usense, sense;
+ unsigned char *ubuf;
+ int ret;
+
+ if (cgc->data_direction == CGC_DATA_UNKNOWN)
+ return -EINVAL;
+
+ if (cgc->buflen < 0 || cgc->buflen >= 131072)
+ return -EINVAL;
+
+ if ((ubuf = cgc->buffer)) {
+ cgc->buffer = kmalloc(cgc->buflen, GFP_KERNEL);
+ if (cgc->buffer == NULL)
+ return -ENOMEM;
+ }
+
+ usense = cgc->sense;
+ cgc->sense = &sense;
+ if (usense && !access_ok(VERIFY_WRITE, usense, sizeof(*usense)))
+ return -EFAULT;
+
+ if (cgc->data_direction == CGC_DATA_READ) {
+ if (!access_ok(VERIFY_READ, ubuf, cgc->buflen))
+ return -EFAULT;
+ } else if (cgc->data_direction == CGC_DATA_WRITE) {
+ if (copy_from_user(cgc->buffer, ubuf, cgc->buflen)) {
+ kfree(cgc->buffer);
+ return -EFAULT;
+ }
+ }
+
+ ret = cdi->ops->generic_packet(cdi, cgc);
+ __copy_to_user(usense, cgc->sense, sizeof(*usense));
+ if (!ret && cgc->data_direction == CGC_DATA_READ)
+ __copy_to_user(ubuf, cgc->buffer, cgc->buflen);
+ kfree(cgc->buffer);
+ return ret;
+}
+
+static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
+ unsigned long arg)
+{
+ struct cdrom_device_ops *cdo = cdi->ops;
+ struct cdrom_generic_command cgc;
+ kdev_t dev = cdi->dev;
+ char buffer[32];
+ int ret = 0;
+
+ memset(&cgc, 0, sizeof(cgc));
+
+ /* build a unified command and queue it through
+ cdo->generic_packet() */
+ switch (cmd) {
+ case CDROMREADRAW:
+ case CDROMREADMODE1:
+ case CDROMREADMODE2: {
+ struct cdrom_msf msf;
+ int blocksize = 0, format = 0, lba;
+
+ switch (cmd) {
+ case CDROMREADRAW:
+ blocksize = CD_FRAMESIZE_RAW;
+ break;
+ case CDROMREADMODE1:
+ blocksize = CD_FRAMESIZE;
+ format = 2;
+ break;
+ case CDROMREADMODE2:
+ blocksize = CD_FRAMESIZE_RAW0;
+ break;
+ }
+ IOCTL_IN(arg, struct cdrom_msf, msf);
+ lba = msf_to_lba(msf.cdmsf_min0,msf.cdmsf_sec0,msf.cdmsf_frame0);
+ /* FIXME: we need upper bound checking, too!! */
+ if (lba < 0)
+ return -EINVAL;
+ cgc.buffer = (char *) kmalloc(blocksize, GFP_KERNEL);
+ if (cgc.buffer == NULL)
+ return -ENOMEM;
+ cgc.data_direction = CGC_DATA_READ;
+ ret = cdrom_read_block(cdi, &cgc, lba, 1, format, blocksize);
+ if (ret) {
+ /*
+ * SCSI-II devices are not required to support
+ * READ_CD, so let's try switching block size
+ */
+ /* FIXME: switch back again... */
+ if ((ret = cdrom_switch_blocksize(cdi, blocksize))) {
+ kfree(cgc.buffer);
+ return ret;
+ }
+ cgc.sense = NULL;
+ ret = cdrom_read_cd(cdi, &cgc, lba, blocksize, 1);
+ ret |= cdrom_switch_blocksize(cdi, blocksize);
+ }
+ if (!ret && copy_to_user((char *)arg, cgc.buffer, blocksize))
+ ret = -EFAULT;
+ kfree(cgc.buffer);
+ return ret;
+ }
+ case CDROMREADAUDIO: {
+ struct cdrom_read_audio ra;
+ int lba, nr;
+
+ IOCTL_IN(arg, struct cdrom_read_audio, ra);
+
+ if (ra.addr_format == CDROM_MSF)
+ lba = msf_to_lba(ra.addr.msf.minute,
+ ra.addr.msf.second,
+ ra.addr.msf.frame);
+ else if (ra.addr_format == CDROM_LBA)
+ lba = ra.addr.lba;
+ else
+ return -EINVAL;
+
+ /* FIXME: we need upper bound checking, too!! */
+ if (lba < 0 || ra.nframes <= 0)
+ return -EINVAL;
+
+ /*
+ * start with will ra.nframes size, back down if alloc fails
+ */
+ nr = ra.nframes;
+ do {
+ cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL);
+ if (cgc.buffer)
+ break;
+
+ nr >>= 1;
+ } while (nr);
+
+ if (!nr)
+ return -ENOMEM;
+
+ if (!access_ok(VERIFY_WRITE, ra.buf, ra.nframes*CD_FRAMESIZE_RAW)) {
+ kfree(cgc.buffer);
+ return -EFAULT;
+ }
+ cgc.data_direction = CGC_DATA_READ;
+ while (ra.nframes > 0) {
+ if (nr > ra.nframes)
+ nr = ra.nframes;
+
+ ret = cdrom_read_block(cdi, &cgc, lba, nr, 1, CD_FRAMESIZE_RAW);
+ if (ret)
+ break;
+ __copy_to_user(ra.buf, cgc.buffer, CD_FRAMESIZE_RAW*nr);
+ ra.buf += CD_FRAMESIZE_RAW * nr;
+ ra.nframes -= nr;
+ lba += nr;
+ }
+ kfree(cgc.buffer);
+ return ret;
+ }
+ case CDROMSUBCHNL: {
+ struct cdrom_subchnl q;
+ u_char requested, back;
+ IOCTL_IN(arg, struct cdrom_subchnl, q);
+ requested = q.cdsc_format;
+ if (!((requested == CDROM_MSF) ||
+ (requested == CDROM_LBA)))
+ return -EINVAL;
+ q.cdsc_format = CDROM_MSF;
+ if ((ret = cdrom_read_subchannel(cdi, &q, 0)))
+ return ret;
+ back = q.cdsc_format; /* local copy */
+ sanitize_format(&q.cdsc_absaddr, &back, requested);
+ sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested);
+ IOCTL_OUT(arg, struct cdrom_subchnl, q);
+ /* cdinfo(CD_DO_IOCTL, "CDROMSUBCHNL successful\n"); */
+ return 0;
+ }
+ case CDROMPLAYMSF: {
+ struct cdrom_msf msf;
+ cdinfo(CD_DO_IOCTL, "entering CDROMPLAYMSF\n");
+ IOCTL_IN(arg, struct cdrom_msf, msf);
+ cgc.cmd[0] = GPCMD_PLAY_AUDIO_MSF;
+ cgc.cmd[3] = msf.cdmsf_min0;
+ cgc.cmd[4] = msf.cdmsf_sec0;
+ cgc.cmd[5] = msf.cdmsf_frame0;
+ cgc.cmd[6] = msf.cdmsf_min1;
+ cgc.cmd[7] = msf.cdmsf_sec1;
+ cgc.cmd[8] = msf.cdmsf_frame1;
+ cgc.data_direction = CGC_DATA_NONE;
+ return cdo->generic_packet(cdi, &cgc);
+ }
+ case CDROMPLAYBLK: {
+ struct cdrom_blk blk;
+ cdinfo(CD_DO_IOCTL, "entering CDROMPLAYBLK\n");
+ IOCTL_IN(arg, struct cdrom_blk, blk);
+ cgc.cmd[0] = GPCMD_PLAY_AUDIO_10;
+ cgc.cmd[2] = (blk.from >> 24) & 0xff;
+ cgc.cmd[3] = (blk.from >> 16) & 0xff;
+ cgc.cmd[4] = (blk.from >> 8) & 0xff;
+ cgc.cmd[5] = blk.from & 0xff;
+ cgc.cmd[7] = (blk.len >> 8) & 0xff;
+ cgc.cmd[8] = blk.len & 0xff;
+ cgc.data_direction = CGC_DATA_NONE;
+ return cdo->generic_packet(cdi, &cgc);
+ }
+ case CDROMVOLCTRL:
+ case CDROMVOLREAD: {
+ struct cdrom_volctrl volctrl;
+ char mask[32];
+ unsigned short offset;
+ cdinfo(CD_DO_IOCTL, "entering CDROMVOLUME\n");
+
+ IOCTL_IN(arg, struct cdrom_volctrl, volctrl);
+
+ cgc.buffer = buffer;
+ cgc.buflen = 24;
+ if ((ret = cdrom_mode_sense(cdi, &cgc, GPMODE_AUDIO_CTL_PAGE, 0)))
+ return ret;
+
+ /* some drives have longer pages, adjust and reread. */
+ if (buffer[1] > cgc.buflen) {
+ cgc.buflen = buffer[1] + 2;
+ if ((ret = cdrom_mode_sense(cdi, &cgc,
+ GPMODE_AUDIO_CTL_PAGE, 0)))
+ return ret;
+ }
+
+ /* get the offset from the length of the page. length
+ is measure from byte 2 an on, thus the 14. */
+ offset = buffer[1] - 14;
+
+ /* now we have the current volume settings. if it was only
+ a CDROMVOLREAD, return these values */
+ if (cmd == CDROMVOLREAD) {
+ volctrl.channel0 = buffer[offset+9];
+ volctrl.channel1 = buffer[offset+11];
+ volctrl.channel2 = buffer[offset+13];
+ volctrl.channel3 = buffer[offset+15];
+ IOCTL_OUT(arg, struct cdrom_volctrl, volctrl);
+ return 0;
+ }
+
+ /* get the volume mask */
+ cgc.buffer = mask;
+ if ((ret = cdrom_mode_sense(cdi, &cgc,
+ GPMODE_AUDIO_CTL_PAGE, 1)))
+ return ret;
+
+ buffer[offset+9] = volctrl.channel0 & mask[offset+9];
+ buffer[offset+11] = volctrl.channel1 & mask[offset+11];
+ buffer[offset+13] = volctrl.channel2 & mask[offset+13];
+ buffer[offset+15] = volctrl.channel3 & mask[offset+15];
+
+ /* set volume */
+ cgc.buffer = buffer;
+ return cdrom_mode_select(cdi, &cgc);
+ }
+
+ case CDROMSTART:
+ case CDROMSTOP: {
+ cdinfo(CD_DO_IOCTL, "entering CDROMSTART/CDROMSTOP\n");
+ cgc.cmd[0] = GPCMD_START_STOP_UNIT;
+ cgc.cmd[1] = 1;
+ cgc.cmd[4] = (cmd == CDROMSTART) ? 1 : 0;
+ cgc.data_direction = CGC_DATA_NONE;
+ return cdo->generic_packet(cdi, &cgc);
+ }
+
+ case CDROMPAUSE:
+ case CDROMRESUME: {
+ cdinfo(CD_DO_IOCTL, "entering CDROMPAUSE/CDROMRESUME\n");
+ cgc.cmd[0] = GPCMD_PAUSE_RESUME;
+ cgc.cmd[8] = (cmd == CDROMRESUME) ? 1 : 0;
+ cgc.data_direction = CGC_DATA_NONE;
+ return cdo->generic_packet(cdi, &cgc);
+ }
+
+ case DVD_READ_STRUCT: {
+ dvd_struct *s;
+ int size = sizeof(dvd_struct);
+ if (!CDROM_CAN(CDC_DVD))
+ return -ENOSYS;
+ if ((s = (dvd_struct *) kmalloc(size, GFP_KERNEL)) == NULL)
+ return -ENOMEM;
+ cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n");
+ if (copy_from_user(s, (dvd_struct *)arg, size)) {
+ kfree(s);
+ return -EFAULT;
+ }
+ if ((ret = dvd_read_struct(cdi, s))) {
+ kfree(s);
+ return ret;
+ }
+ if (copy_to_user((dvd_struct *)arg, s, size))
+ ret = -EFAULT;
+ kfree(s);
+ return ret;
+ }
+
+ case DVD_AUTH: {
+ dvd_authinfo ai;
+ if (!CDROM_CAN(CDC_DVD))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "entering DVD_AUTH\n");
+ IOCTL_IN(arg, dvd_authinfo, ai);
+ if ((ret = dvd_do_auth (cdi, &ai)))
+ return ret;
+ IOCTL_OUT(arg, dvd_authinfo, ai);
+ return 0;
+ }
+
+ case CDROM_SEND_PACKET: {
+ if (!CDROM_CAN(CDC_GENERIC_PACKET))
+ return -ENOSYS;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_SEND_PACKET\n");
+ IOCTL_IN(arg, struct cdrom_generic_command, cgc);
+ return cdrom_do_cmd(cdi, &cgc);
+ }
+ case CDROM_NEXT_WRITABLE: {
+ long next = 0;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_NEXT_WRITABLE\n");
+ if ((ret = cdrom_get_next_writable(dev, &next)))
+ return ret;
+ IOCTL_OUT(arg, long, next);
+ return 0;
+ }
+ case CDROM_LAST_WRITTEN: {
+ long last = 0;
+ cdinfo(CD_DO_IOCTL, "entering CDROM_LAST_WRITTEN\n");
+ if ((ret = cdrom_get_last_written(dev, &last)))
+ return ret;
+ IOCTL_OUT(arg, long, last);
+ return 0;
+ }
+ } /* switch */
+
+ return -ENOTTY;
+}
+
+int cdrom_get_track_info(kdev_t dev, __u16 track, __u8 type,
+ track_information *ti)
+{
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ struct cdrom_device_ops *cdo = cdi->ops;
+ struct cdrom_generic_command cgc;
+ int ret;
+
+ init_cdrom_command(&cgc, ti, 8, CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_TRACK_RZONE_INFO;
+ cgc.cmd[1] = type & 3;
+ cgc.cmd[4] = (track & 0xff00) >> 8;
+ cgc.cmd[5] = track & 0xff;
+ cgc.cmd[8] = 8;
+ cgc.quiet = 1;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ cgc.buflen = be16_to_cpu(ti->track_information_length) +
+ sizeof(ti->track_information_length);
+
+ if (cgc.buflen > sizeof(track_information))
+ cgc.buflen = sizeof(track_information);
+
+ cgc.cmd[8] = cgc.buflen;
+ return cdo->generic_packet(cdi, &cgc);
+}
+
+/* requires CD R/RW */
+int cdrom_get_disc_info(kdev_t dev, disc_information *di)
+{
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ struct cdrom_device_ops *cdo = cdi->ops;
+ struct cdrom_generic_command cgc;
+ int ret;
+
+ /* set up command and get the disc info */
+ init_cdrom_command(&cgc, di, sizeof(*di), CGC_DATA_READ);
+ cgc.cmd[0] = GPCMD_READ_DISC_INFO;
+ cgc.cmd[8] = cgc.buflen = 2;
+ cgc.quiet = 1;
+
+ if ((ret = cdo->generic_packet(cdi, &cgc)))
+ return ret;
+
+ /* not all drives have the same disc_info length, so requeue
+ * packet with the length the drive tells us it can supply
+ */
+ cgc.buflen = be16_to_cpu(di->disc_information_length) +
+ sizeof(di->disc_information_length);
+
+ if (cgc.buflen > sizeof(disc_information))
+ cgc.buflen = sizeof(disc_information);
+
+ cgc.cmd[8] = cgc.buflen;
+ return cdo->generic_packet(cdi, &cgc);
+}
+
+
+/* return the last written block on the CD-R media. this is for the udf
+ file system. */
+int cdrom_get_last_written(kdev_t dev, long *last_written)
+{
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ struct cdrom_tocentry toc;
+ disc_information di;
+ track_information ti;
+ __u32 last_track;
+ int ret = -1;
+
+ if (!CDROM_CAN(CDC_GENERIC_PACKET))
+ goto use_toc;
+
+ if ((ret = cdrom_get_disc_info(dev, &di)))
+ goto use_toc;
+
+ last_track = (di.last_track_msb << 8) | di.last_track_lsb;
+ if ((ret = cdrom_get_track_info(dev, last_track, 1, &ti)))
+ goto use_toc;
+
+ /* if this track is blank, try the previous. */
+ if (ti.blank) {
+ last_track--;
+ if ((ret = cdrom_get_track_info(dev, last_track, 1, &ti)))
+ goto use_toc;
+ }
+
+ /* if last recorded field is valid, return it. */
+ if (ti.lra_v) {
+ *last_written = be32_to_cpu(ti.last_rec_address);
+ } else {
+ /* make it up instead */
+ *last_written = be32_to_cpu(ti.track_start) +
+ be32_to_cpu(ti.track_size);
+ if (ti.free_blocks)
+ *last_written -= (be32_to_cpu(ti.free_blocks) + 7);
+ }
+ return 0;
+
+ /* this is where we end up if the drive either can't do a
+ GPCMD_READ_DISC_INFO or GPCMD_READ_TRACK_RZONE_INFO or if
+ it fails. then we return the toc contents. */
+use_toc:
+ toc.cdte_format = CDROM_MSF;
+ toc.cdte_track = CDROM_LEADOUT;
+ if (cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &toc))
+ return ret;
+ sanitize_format(&toc.cdte_addr, &toc.cdte_format, CDROM_LBA);
+ *last_written = toc.cdte_addr.lba;
+ return 0;
+}
+
+/* return the next writable block. also for udf file system. */
+int cdrom_get_next_writable(kdev_t dev, long *next_writable)
+{
+ struct cdrom_device_info *cdi = cdrom_find_device(dev);
+ disc_information di;
+ track_information ti;
+ __u16 last_track;
+ int ret = -1;
+
+ if (!CDROM_CAN(CDC_GENERIC_PACKET))
+ goto use_last_written;
+
+ if ((ret = cdrom_get_disc_info(dev, &di)))
+ goto use_last_written;
+
+ last_track = (di.last_track_msb << 8) | di.last_track_lsb;
+ if ((ret = cdrom_get_track_info(dev, last_track, 1, &ti)))
+ goto use_last_written;
+
+ /* if this track is blank, try the previous. */
+ if (ti.blank) {
+ last_track--;
+ if ((ret = cdrom_get_track_info(dev, last_track, 1, &ti)))
+ goto use_last_written;
+ }
+
+ /* if next recordable address field is valid, use it. */
+ if (ti.nwa_v)
+ *next_writable = be32_to_cpu(ti.next_writable);
+ else
+ goto use_last_written;
+
+ return 0;
+
+use_last_written:
+ if ((ret = cdrom_get_last_written(dev, next_writable))) {
+ *next_writable = 0;
+ return ret;
+ } else {
+ *next_writable += 7;
+ return 0;
+ }
+}
+
+EXPORT_SYMBOL(cdrom_get_disc_info);
+EXPORT_SYMBOL(cdrom_get_track_info);
+EXPORT_SYMBOL(cdrom_get_next_writable);
+EXPORT_SYMBOL(cdrom_get_last_written);
+EXPORT_SYMBOL(cdrom_count_tracks);
+EXPORT_SYMBOL(register_cdrom);
+EXPORT_SYMBOL(unregister_cdrom);
+EXPORT_SYMBOL(cdrom_open);
+EXPORT_SYMBOL(cdrom_release);
+EXPORT_SYMBOL(cdrom_ioctl);
+EXPORT_SYMBOL(cdrom_media_changed);
+EXPORT_SYMBOL(cdrom_number_of_slots);
+EXPORT_SYMBOL(cdrom_select_disc);
+EXPORT_SYMBOL(cdrom_mode_select);
+EXPORT_SYMBOL(cdrom_mode_sense);
+EXPORT_SYMBOL(init_cdrom_command);
+EXPORT_SYMBOL(cdrom_find_device);
+
+#ifdef CONFIG_SYSCTL
+
+#define CDROM_STR_SIZE 1000
+
+struct cdrom_sysctl_settings {
+ char info[CDROM_STR_SIZE]; /* general info */
+ int autoclose; /* close tray upon mount, etc */
+ int autoeject; /* eject on umount */
+ int debug; /* turn on debugging messages */
+ int lock; /* lock the door on device open */
+ int check; /* check media type */
+} cdrom_sysctl_settings;
+
+int cdrom_sysctl_info(ctl_table *ctl, int write, struct file * filp,
+ void *buffer, size_t *lenp)
+{
+ int pos;
+ struct cdrom_device_info *cdi;
+ char *info = cdrom_sysctl_settings.info;
+
+ if (!*lenp || (filp->f_pos && !write)) {
+ *lenp = 0;
+ return 0;
+ }
+
+ pos = sprintf(info, "CD-ROM information, " VERSION "\n");
+
+ pos += sprintf(info+pos, "\ndrive name:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%s", cdi->name);
+
+ pos += sprintf(info+pos, "\ndrive speed:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", cdi->speed);
+
+ pos += sprintf(info+pos, "\ndrive # of slots:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", cdi->capacity);
+
+ pos += sprintf(info+pos, "\nCan close tray:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CLOSE_TRAY) != 0);
+
+ pos += sprintf(info+pos, "\nCan open tray:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_OPEN_TRAY) != 0);
+
+ pos += sprintf(info+pos, "\nCan lock tray:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_LOCK) != 0);
+
+ pos += sprintf(info+pos, "\nCan change speed:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_SELECT_SPEED) != 0);
+
+ pos += sprintf(info+pos, "\nCan select disk:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_SELECT_DISC) != 0);
+
+ pos += sprintf(info+pos, "\nCan read multisession:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MULTI_SESSION) != 0);
+
+ pos += sprintf(info+pos, "\nCan read MCN:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MCN) != 0);
+
+ pos += sprintf(info+pos, "\nReports media changed:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_MEDIA_CHANGED) != 0);
+
+ pos += sprintf(info+pos, "\nCan play audio:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_PLAY_AUDIO) != 0);
+
+ pos += sprintf(info+pos, "\nCan write CD-R:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CD_R) != 0);
+
+ pos += sprintf(info+pos, "\nCan write CD-RW:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_CD_RW) != 0);
+
+ pos += sprintf(info+pos, "\nCan read DVD:\t");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD) != 0);
+
+ pos += sprintf(info+pos, "\nCan write DVD-R:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD_R) != 0);
+
+ pos += sprintf(info+pos, "\nCan write DVD-RAM:");
+ for (cdi=topCdromPtr;cdi!=NULL;cdi=cdi->next)
+ pos += sprintf(info+pos, "\t%d", CDROM_CAN(CDC_DVD_RAM) != 0);
+
+ strcpy(info+pos,"\n\n");
+
+ return proc_dostring(ctl, write, filp, buffer, lenp);
+}
+
+/* Unfortunately, per device settings are not implemented through
+ procfs/sysctl yet. When they are, this will naturally disappear. For now
+ just update all drives. Later this will become the template on which
+ new registered drives will be based. */
+void cdrom_update_settings(void)
+{
+ struct cdrom_device_info *cdi;
+
+ for (cdi = topCdromPtr; cdi != NULL; cdi = cdi->next) {
+ if (autoclose && CDROM_CAN(CDC_CLOSE_TRAY))
+ cdi->options |= CDO_AUTO_CLOSE;
+ else if (!autoclose)
+ cdi->options &= ~CDO_AUTO_CLOSE;
+ if (autoeject && CDROM_CAN(CDC_OPEN_TRAY))
+ cdi->options |= CDO_AUTO_EJECT;
+ else if (!autoeject)
+ cdi->options &= ~CDO_AUTO_EJECT;
+ if (lockdoor && CDROM_CAN(CDC_LOCK))
+ cdi->options |= CDO_LOCK;
+ else if (!lockdoor)
+ cdi->options &= ~CDO_LOCK;
+ if (check_media_type)
+ cdi->options |= CDO_CHECK_TYPE;
+ else
+ cdi->options &= ~CDO_CHECK_TYPE;
+ }
+}
+
+static int cdrom_sysctl_handler(ctl_table *ctl, int write, struct file * filp,
+ void *buffer, size_t *lenp)
+{
+ int *valp = ctl->data;
+ int val = *valp;
+ int ret;
+
+ ret = proc_dointvec(ctl, write, filp, buffer, lenp);
+
+ if (write && *valp != val) {
+
+ /* we only care for 1 or 0. */
+ if (*valp)
+ *valp = 1;
+ else
+ *valp = 0;
+
+ switch (ctl->ctl_name) {
+ case DEV_CDROM_AUTOCLOSE: {
+ if (valp == &cdrom_sysctl_settings.autoclose)
+ autoclose = cdrom_sysctl_settings.autoclose;
+ break;
+ }
+ case DEV_CDROM_AUTOEJECT: {
+ if (valp == &cdrom_sysctl_settings.autoeject)
+ autoeject = cdrom_sysctl_settings.autoeject;
+ break;
+ }
+ case DEV_CDROM_DEBUG: {
+ if (valp == &cdrom_sysctl_settings.debug)
+ debug = cdrom_sysctl_settings.debug;
+ break;
+ }
+ case DEV_CDROM_LOCK: {
+ if (valp == &cdrom_sysctl_settings.lock)
+ lockdoor = cdrom_sysctl_settings.lock;
+ break;
+ }
+ case DEV_CDROM_CHECK_MEDIA: {
+ if (valp == &cdrom_sysctl_settings.check)
+ check_media_type = cdrom_sysctl_settings.check;
+ break;
+ }
+ }
+ /* update the option flags according to the changes. we
+ don't have per device options through sysctl yet,
+ but we will have and then this will disappear. */
+ cdrom_update_settings();
+ }
+
+ return ret;
+}
+
+/* Place files in /proc/sys/dev/cdrom */
+ctl_table cdrom_table[] = {
+ {DEV_CDROM_INFO, "info", &cdrom_sysctl_settings.info,
+ CDROM_STR_SIZE, 0444, NULL, &cdrom_sysctl_info},
+ {DEV_CDROM_AUTOCLOSE, "autoclose", &cdrom_sysctl_settings.autoclose,
+ sizeof(int), 0644, NULL, &cdrom_sysctl_handler },
+ {DEV_CDROM_AUTOEJECT, "autoeject", &cdrom_sysctl_settings.autoeject,
+ sizeof(int), 0644, NULL, &cdrom_sysctl_handler },
+ {DEV_CDROM_DEBUG, "debug", &cdrom_sysctl_settings.debug,
+ sizeof(int), 0644, NULL, &cdrom_sysctl_handler },
+ {DEV_CDROM_LOCK, "lock", &cdrom_sysctl_settings.lock,
+ sizeof(int), 0644, NULL, &cdrom_sysctl_handler },
+ {DEV_CDROM_CHECK_MEDIA, "check_media", &cdrom_sysctl_settings.check,
+ sizeof(int), 0644, NULL, &cdrom_sysctl_handler },
+ {0}
+ };
+
+ctl_table cdrom_cdrom_table[] = {
+ {DEV_CDROM, "cdrom", NULL, 0, 0555, cdrom_table},
+ {0}
+ };
+
+/* Make sure that /proc/sys/dev is there */
+ctl_table cdrom_root_table[] = {
+#ifdef CONFIG_PROC_FS
+ {CTL_DEV, "dev", NULL, 0, 0555, cdrom_cdrom_table},
+#endif /* CONFIG_PROC_FS */
+ {0}
+ };
+static struct ctl_table_header *cdrom_sysctl_header;
+
+static void cdrom_sysctl_register(void)
+{
+ static int initialized;
+
+ if (initialized == 1)
+ return;
+
+ cdrom_sysctl_header = register_sysctl_table(cdrom_root_table, 1);
+ cdrom_root_table->child->de->owner = THIS_MODULE;
+
+ /* set the defaults */
+ cdrom_sysctl_settings.autoclose = autoclose;
+ cdrom_sysctl_settings.autoeject = autoeject;
+ cdrom_sysctl_settings.debug = debug;
+ cdrom_sysctl_settings.lock = lockdoor;
+ cdrom_sysctl_settings.check = check_media_type;
+
+ initialized = 1;
+}
+
+static void cdrom_sysctl_unregister(void)
+{
+ if (cdrom_sysctl_header)
+ unregister_sysctl_table(cdrom_sysctl_header);
+}
+
+#endif /* CONFIG_SYSCTL */
+
+static int __init cdrom_init(void)
+{
+#ifdef CONFIG_SYSCTL
+ cdrom_sysctl_register();
+#endif
+#if 0
+ if (!devfs_handle)
+ devfs_handle = devfs_mk_dir(NULL, "cdroms", NULL);
+#endif
+ return 0;
+}
+
+static void __exit cdrom_exit(void)
+{
+ printk(KERN_INFO "Uniform CD-ROM driver unloaded\n");
+#ifdef CONFIG_SYSCTL
+ cdrom_sysctl_unregister();
+#endif
+#if 0
+ devfs_unregister(devfs_handle);
+#endif
+}
+
+module_init(cdrom_init);
+module_exit(cdrom_exit);
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * linux/drivers/ide/ide-cd.c
+ *
+ * Copyright (C) 1994, 1995, 1996 scott snyder <snyder@fnald0.fnal.gov>
+ * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
+ * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * ATAPI CD-ROM driver. To be used with ide.c.
+ * See Documentation/cdrom/ide-cd for usage information.
+ *
+ * Suggestions are welcome. Patches that work are more welcome though. ;-)
+ * For those wishing to work on this driver, please be sure you download
+ * and comply with the latest Mt. Fuji (SFF8090 version 4) and ATAPI
+ * (SFF-8020i rev 2.6) standards. These documents can be obtained by
+ * anonymous ftp from:
+ * ftp://fission.dt.wdc.com/pub/standards/SFF_atapi/spec/SFF8020-r2.6/PS/8020r26.ps
+ * ftp://ftp.avc-pioneer.com/Mtfuji4/Spec/Fuji4r10.pdf
+ *
+ * Drives that deviate from these standards will be accomodated as much
+ * as possible via compile time or command-line options. Since I only have
+ * a few drives, you generally need to send me patches...
+ *
+ * ----------------------------------
+ * TO DO LIST:
+ * -Make it so that Pioneer CD DR-A24X and friends don't get screwed up on
+ * boot
+ *
+ * ----------------------------------
+ * 1.00 Oct 31, 1994 -- Initial version.
+ * 1.01 Nov 2, 1994 -- Fixed problem with starting request in
+ * cdrom_check_status.
+ * 1.03 Nov 25, 1994 -- leaving unmask_intr[] as a user-setting (as for disks)
+ * (from mlord) -- minor changes to cdrom_setup()
+ * -- renamed ide_dev_s to ide_drive_t, enable irq on command
+ * 2.00 Nov 27, 1994 -- Generalize packet command interface;
+ * add audio ioctls.
+ * 2.01 Dec 3, 1994 -- Rework packet command interface to handle devices
+ * which send an interrupt when ready for a command.
+ * 2.02 Dec 11, 1994 -- Cache the TOC in the driver.
+ * Don't use SCMD_PLAYAUDIO_TI; it's not included
+ * in the current version of ATAPI.
+ * Try to use LBA instead of track or MSF addressing
+ * when possible.
+ * Don't wait for READY_STAT.
+ * 2.03 Jan 10, 1995 -- Rewrite block read routines to handle block sizes
+ * other than 2k and to move multiple sectors in a
+ * single transaction.
+ * 2.04 Apr 21, 1995 -- Add work-around for Creative Labs CD220E drives.
+ * Thanks to Nick Saw <cwsaw@pts7.pts.mot.com> for
+ * help in figuring this out. Ditto for Acer and
+ * Aztech drives, which seem to have the same problem.
+ * 2.04b May 30, 1995 -- Fix to match changes in ide.c version 3.16 -ml
+ * 2.05 Jun 8, 1995 -- Don't attempt to retry after an illegal request
+ * or data protect error.
+ * Use HWIF and DEV_HWIF macros as in ide.c.
+ * Always try to do a request_sense after
+ * a failed command.
+ * Include an option to give textual descriptions
+ * of ATAPI errors.
+ * Fix a bug in handling the sector cache which
+ * showed up if the drive returned data in 512 byte
+ * blocks (like Pioneer drives). Thanks to
+ * Richard Hirst <srh@gpt.co.uk> for diagnosing this.
+ * Properly supply the page number field in the
+ * MODE_SELECT command.
+ * PLAYAUDIO12 is broken on the Aztech; work around it.
+ * 2.05x Aug 11, 1995 -- lots of data structure renaming/restructuring in ide.c
+ * (my apologies to Scott, but now ide-cd.c is independent)
+ * 3.00 Aug 22, 1995 -- Implement CDROMMULTISESSION ioctl.
+ * Implement CDROMREADAUDIO ioctl (UNTESTED).
+ * Use input_ide_data() and output_ide_data().
+ * Add door locking.
+ * Fix usage count leak in cdrom_open, which happened
+ * when a read-write mount was attempted.
+ * Try to load the disk on open.
+ * Implement CDROMEJECT_SW ioctl (off by default).
+ * Read total cdrom capacity during open.
+ * Rearrange logic in cdrom_decode_status. Issue
+ * request sense commands for failed packet commands
+ * from here instead of from cdrom_queue_packet_command.
+ * Fix a race condition in retrieving error information.
+ * Suppress printing normal unit attention errors and
+ * some drive not ready errors.
+ * Implement CDROMVOLREAD ioctl.
+ * Implement CDROMREADMODE1/2 ioctls.
+ * Fix race condition in setting up interrupt handlers
+ * when the `serialize' option is used.
+ * 3.01 Sep 2, 1995 -- Fix ordering of reenabling interrupts in
+ * cdrom_queue_request.
+ * Another try at using ide_[input,output]_data.
+ * 3.02 Sep 16, 1995 -- Stick total disk capacity in partition table as well.
+ * Make VERBOSE_IDE_CD_ERRORS dump failed command again.
+ * Dump out more information for ILLEGAL REQUEST errs.
+ * Fix handling of errors occurring before the
+ * packet command is transferred.
+ * Fix transfers with odd bytelengths.
+ * 3.03 Oct 27, 1995 -- Some Creative drives have an id of just `CD'.
+ * `DCI-2S10' drives are broken too.
+ * 3.04 Nov 20, 1995 -- So are Vertos drives.
+ * 3.05 Dec 1, 1995 -- Changes to go with overhaul of ide.c and ide-tape.c
+ * 3.06 Dec 16, 1995 -- Add support needed for partitions.
+ * More workarounds for Vertos bugs (based on patches
+ * from Holger Dietze <dietze@aix520.informatik.uni-leipzig.de>).
+ * Try to eliminate byteorder assumptions.
+ * Use atapi_cdrom_subchnl struct definition.
+ * Add STANDARD_ATAPI compilation option.
+ * 3.07 Jan 29, 1996 -- More twiddling for broken drives: Sony 55D,
+ * Vertos 300.
+ * Add NO_DOOR_LOCKING configuration option.
+ * Handle drive_cmd requests w/NULL args (for hdparm -t).
+ * Work around sporadic Sony55e audio play problem.
+ * 3.07a Feb 11, 1996 -- check drive->id for NULL before dereferencing, to fix
+ * problem with "hde=cdrom" with no drive present. -ml
+ * 3.08 Mar 6, 1996 -- More Vertos workarounds.
+ * 3.09 Apr 5, 1996 -- Add CDROMCLOSETRAY ioctl.
+ * Switch to using MSF addressing for audio commands.
+ * Reformat to match kernel tabbing style.
+ * Add CDROM_GET_UPC ioctl.
+ * 3.10 Apr 10, 1996 -- Fix compilation error with STANDARD_ATAPI.
+ * 3.11 Apr 29, 1996 -- Patch from Heiko Eissfeldt <heiko@colossus.escape.de>
+ * to remove redundant verify_area calls.
+ * 3.12 May 7, 1996 -- Rudimentary changer support. Based on patches
+ * from Gerhard Zuber <zuber@berlin.snafu.de>.
+ * Let open succeed even if there's no loaded disc.
+ * 3.13 May 19, 1996 -- Fixes for changer code.
+ * 3.14 May 29, 1996 -- Add work-around for Vertos 600.
+ * (From Hennus Bergman <hennus@sky.ow.nl>.)
+ * 3.15 July 2, 1996 -- Added support for Sanyo 3 CD changers
+ * from Ben Galliart <bgallia@luc.edu> with
+ * special help from Jeff Lightfoot
+ * <jeffml@pobox.com>
+ * 3.15a July 9, 1996 -- Improved Sanyo 3 CD changer identification
+ * 3.16 Jul 28, 1996 -- Fix from Gadi to reduce kernel stack usage for ioctl.
+ * 3.17 Sep 17, 1996 -- Tweak audio reads for some drives.
+ * Start changing CDROMLOADFROMSLOT to CDROM_SELECT_DISC.
+ * 3.18 Oct 31, 1996 -- Added module and DMA support.
+ *
+ *
+ * 4.00 Nov 5, 1996 -- New ide-cd maintainer,
+ * Erik B. Andersen <andersee@debian.org>
+ * -- Newer Creative drives don't always set the error
+ * register correctly. Make sure we see media changes
+ * regardless.
+ * -- Integrate with generic cdrom driver.
+ * -- CDROMGETSPINDOWN and CDROMSETSPINDOWN ioctls, based on
+ * a patch from Ciro Cattuto <>.
+ * -- Call set_device_ro.
+ * -- Implement CDROMMECHANISMSTATUS and CDROMSLOTTABLE
+ * ioctls, based on patch by Erik Andersen
+ * -- Add some probes of drive capability during setup.
+ *
+ * 4.01 Nov 11, 1996 -- Split into ide-cd.c and ide-cd.h
+ * -- Removed CDROMMECHANISMSTATUS and CDROMSLOTTABLE
+ * ioctls in favor of a generalized approach
+ * using the generic cdrom driver.
+ * -- Fully integrated with the 2.1.X kernel.
+ * -- Other stuff that I forgot (lots of changes)
+ *
+ * 4.02 Dec 01, 1996 -- Applied patch from Gadi Oxman <gadio@netvision.net.il>
+ * to fix the drive door locking problems.
+ *
+ * 4.03 Dec 04, 1996 -- Added DSC overlap support.
+ * 4.04 Dec 29, 1996 -- Added CDROMREADRAW ioclt based on patch
+ * by Ales Makarov (xmakarov@sun.felk.cvut.cz)
+ *
+ * 4.05 Nov 20, 1997 -- Modified to print more drive info on init
+ * Minor other changes
+ * Fix errors on CDROMSTOP (If you have a "Dolphin",
+ * you must define IHAVEADOLPHIN)
+ * Added identifier so new Sanyo CD-changer works
+ * Better detection if door locking isn't supported
+ *
+ * 4.06 Dec 17, 1997 -- fixed endless "tray open" messages -ml
+ * 4.07 Dec 17, 1997 -- fallback to set pc->stat on "tray open"
+ * 4.08 Dec 18, 1997 -- spew less noise when tray is empty
+ * -- fix speed display for ACER 24X, 18X
+ * 4.09 Jan 04, 1998 -- fix handling of the last block so we return
+ * an end of file instead of an I/O error (Gadi)
+ * 4.10 Jan 24, 1998 -- fixed a bug so now changers can change to a new
+ * slot when there is no disc in the current slot.
+ * -- Fixed a memory leak where info->changer_info was
+ * malloc'ed but never free'd when closing the device.
+ * -- Cleaned up the global namespace a bit by making more
+ * functions static that should already have been.
+ * 4.11 Mar 12, 1998 -- Added support for the CDROM_SELECT_SPEED ioctl
+ * based on a patch for 2.0.33 by Jelle Foks
+ * <jelle@scintilla.utwente.nl>, a patch for 2.0.33
+ * by Toni Giorgino <toni@pcape2.pi.infn.it>, the SCSI
+ * version, and my own efforts. -erik
+ * -- Fixed a stupid bug which egcs was kind enough to
+ * inform me of where "Illegal mode for this track"
+ * was never returned due to a comparison on data
+ * types of limited range.
+ * 4.12 Mar 29, 1998 -- Fixed bug in CDROM_SELECT_SPEED so write speed is
+ * now set ionly for CD-R and CD-RW drives. I had
+ * removed this support because it produced errors.
+ * It produced errors _only_ for non-writers. duh.
+ * 4.13 May 05, 1998 -- Suppress useless "in progress of becoming ready"
+ * messages, since this is not an error.
+ * -- Change error messages to be const
+ * -- Remove a "\t" which looks ugly in the syslogs
+ * 4.14 July 17, 1998 -- Change to pointing to .ps version of ATAPI spec
+ * since the .pdf version doesn't seem to work...
+ * -- Updated the TODO list to something more current.
+ *
+ * 4.15 Aug 25, 1998 -- Updated ide-cd.h to respect mechine endianess,
+ * patch thanks to "Eddie C. Dost" <ecd@skynet.be>
+ *
+ * 4.50 Oct 19, 1998 -- New maintainers!
+ * Jens Axboe <axboe@image.dk>
+ * Chris Zwilling <chris@cloudnet.com>
+ *
+ * 4.51 Dec 23, 1998 -- Jens Axboe <axboe@image.dk>
+ * - ide_cdrom_reset enabled since the ide subsystem
+ * handles resets fine now. <axboe@image.dk>
+ * - Transfer size fix for Samsung CD-ROMs, thanks to
+ * "Ville Hallik" <ville.hallik@mail.ee>.
+ * - other minor stuff.
+ *
+ * 4.52 Jan 19, 1999 -- Jens Axboe <axboe@image.dk>
+ * - Detect DVD-ROM/RAM drives
+ *
+ * 4.53 Feb 22, 1999 - Include other model Samsung and one Goldstar
+ * drive in transfer size limit.
+ * - Fix the I/O error when doing eject without a medium
+ * loaded on some drives.
+ * - CDROMREADMODE2 is now implemented through
+ * CDROMREADRAW, since many drives don't support
+ * MODE2 (even though ATAPI 2.6 says they must).
+ * - Added ignore parameter to ide-cd (as a module), eg
+ * insmod ide-cd ignore='hda hdb'
+ * Useful when using ide-cd in conjunction with
+ * ide-scsi. TODO: non-modular way of doing the
+ * same.
+ *
+ * 4.54 Aug 5, 1999 - Support for MMC2 class commands through the generic
+ * packet interface to cdrom.c.
+ * - Unified audio ioctl support, most of it.
+ * - cleaned up various deprecated verify_area().
+ * - Added ide_cdrom_packet() as the interface for
+ * the Uniform generic_packet().
+ * - bunch of other stuff, will fill in logs later.
+ * - report 1 slot for non-changers, like the other
+ * cd-rom drivers. don't report select disc for
+ * non-changers as well.
+ * - mask out audio playing, if the device can't do it.
+ *
+ * 4.55 Sep 1, 1999 - Eliminated the rest of the audio ioctls, except
+ * for CDROMREADTOC[ENTRY|HEADER]. Some of the drivers
+ * use this independently of the actual audio handling.
+ * They will disappear later when I get the time to
+ * do it cleanly.
+ * - Minimize the TOC reading - only do it when we
+ * know a media change has occurred.
+ * - Moved all the CDROMREADx ioctls to the Uniform layer.
+ * - Heiko Eissfeldt <heiko@colossus.escape.de> supplied
+ * some fixes for CDI.
+ * - CD-ROM leaving door locked fix from Andries
+ * Brouwer <Andries.Brouwer@cwi.nl>
+ * - Erik Andersen <andersen@xmission.com> unified
+ * commands across the various drivers and how
+ * sense errors are handled.
+ *
+ * 4.56 Sep 12, 1999 - Removed changer support - it is now in the
+ * Uniform layer.
+ * - Added partition based multisession handling.
+ * - Mode sense and mode select moved to the
+ * Uniform layer.
+ * - Fixed a problem with WPI CDS-32X drive - it
+ * failed the capabilities
+ *
+ * 4.57 Apr 7, 2000 - Fixed sense reporting.
+ * - Fixed possible oops in ide_cdrom_get_last_session()
+ * - Fix locking mania and make ide_cdrom_reset relock
+ * - Stop spewing errors to log when magicdev polls with
+ * TEST_UNIT_READY on some drives.
+ * - Various fixes from Tobias Ringstrom:
+ * tray if it was locked prior to the reset.
+ * - cdrom_read_capacity returns one frame too little.
+ * - Fix real capacity reporting.
+ *
+ * 4.58 May 1, 2000 - Clean up ACER50 stuff.
+ * - Fix small problem with ide_cdrom_capacity
+ *
+ * 4.59 Aug 11, 2000 - Fix changer problem in cdrom_read_toc, we weren't
+ * correctly sensing a disc change.
+ * - Rearranged some code
+ * - Use extended sense on drives that support it for
+ * correctly reporting tray status -- from
+ * Michael D Johnson <johnsom@orst.edu>
+ *
+ *************************************************************************/
+
+#define IDECD_VERSION "4.59"
+
+#include <xeno/config.h>
+#include <xeno/module.h>
+#include <xeno/types.h>
+#include <xeno/kernel.h>
+#include <xeno/delay.h>
+#include <xeno/timer.h>
+#include <xeno/slab.h>
+#include <xeno/interrupt.h>
+#include <xeno/errno.h>
+#include <xeno/cdrom.h>
+#include <xeno/ide.h>
+// #include <xeno/completion.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+#include "ide-cd.h"
+
+/****************************************************************************
+ * Generic packet command support and error handling routines.
+ */
+
+/* Mark that we've seen a media change, and invalidate our internal
+ buffers. */
+static void cdrom_saw_media_change (ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+
+ CDROM_STATE_FLAGS (drive)->media_changed = 1;
+ CDROM_STATE_FLAGS (drive)->toc_valid = 0;
+ info->nsectors_buffered = 0;
+}
+
+static int cdrom_log_sense(ide_drive_t *drive, struct packet_command *pc,
+ struct request_sense *sense)
+{
+ int log = 0;
+
+ if (sense == NULL || pc == NULL || pc->quiet)
+ return 0;
+
+ switch (sense->sense_key) {
+ case NO_SENSE: case RECOVERED_ERROR:
+ break;
+ case NOT_READY:
+ /*
+ * don't care about tray state messages for
+ * e.g. capacity commands or in-progress or
+ * becoming ready
+ */
+ if (sense->asc == 0x3a || sense->asc == 0x04)
+ break;
+ log = 1;
+ break;
+ case UNIT_ATTENTION:
+ /*
+ * Make good and sure we've seen this potential media
+ * change. Some drives (i.e. Creative) fail to present
+ * the correct sense key in the error register.
+ */
+ cdrom_saw_media_change(drive);
+ break;
+ default:
+ log = 1;
+ break;
+ }
+ return log;
+}
+
+static
+void cdrom_analyze_sense_data(ide_drive_t *drive,
+ struct packet_command *failed_command,
+ struct request_sense *sense)
+{
+
+ if (!cdrom_log_sense(drive, failed_command, sense))
+ return;
+
+ /*
+ * If a read toc is executed for a CD-R or CD-RW medium where
+ * the first toc has not been recorded yet, it will fail with
+ * 05/24/00 (which is a confusing error)
+ */
+ if (failed_command && failed_command->c[0] == GPCMD_READ_TOC_PMA_ATIP)
+ if (sense->sense_key == 0x05 && sense->asc == 0x24)
+ return;
+
+#if VERBOSE_IDE_CD_ERRORS
+ {
+ int i;
+ const char *s;
+ char buf[80];
+
+ printk ("ATAPI device %s:\n", drive->name);
+ if (sense->error_code==0x70)
+ printk(" Error: ");
+ else if (sense->error_code==0x71)
+ printk(" Deferred Error: ");
+ else if (sense->error_code == 0x7f)
+ printk(" Vendor-specific Error: ");
+ else
+ printk(" Unknown Error Type: ");
+
+ if (sense->sense_key < ARY_LEN(sense_key_texts))
+ s = sense_key_texts[sense->sense_key];
+ else
+ s = "bad sense key!";
+
+ printk("%s -- (Sense key=0x%02x)\n", s, sense->sense_key);
+
+ if (sense->asc == 0x40) {
+ sprintf(buf, "Diagnostic failure on component 0x%02x",
+ sense->ascq);
+ s = buf;
+ } else {
+ int lo = 0, mid, hi = ARY_LEN(sense_data_texts);
+ unsigned long key = (sense->sense_key << 16);
+ key |= (sense->asc << 8);
+ if (!(sense->ascq >= 0x80 && sense->ascq <= 0xdd))
+ key |= sense->ascq;
+ s = NULL;
+
+ while (hi > lo) {
+ mid = (lo + hi) / 2;
+ if (sense_data_texts[mid].asc_ascq == key ||
+ sense_data_texts[mid].asc_ascq == (0xff0000|key)) {
+ s = sense_data_texts[mid].text;
+ break;
+ }
+ else if (sense_data_texts[mid].asc_ascq > key)
+ hi = mid;
+ else
+ lo = mid+1;
+ }
+ }
+
+ if (s == NULL) {
+ if (sense->asc > 0x80)
+ s = "(vendor-specific error)";
+ else
+ s = "(reserved error code)";
+ }
+
+ printk(" %s -- (asc=0x%02x, ascq=0x%02x)\n",
+ s, sense->asc, sense->ascq);
+
+ if (failed_command != NULL) {
+
+ int lo=0, mid, hi= ARY_LEN (packet_command_texts);
+ s = NULL;
+
+ while (hi > lo) {
+ mid = (lo + hi) / 2;
+ if (packet_command_texts[mid].packet_command ==
+ failed_command->c[0]) {
+ s = packet_command_texts[mid].text;
+ break;
+ }
+ if (packet_command_texts[mid].packet_command >
+ failed_command->c[0])
+ hi = mid;
+ else
+ lo = mid+1;
+ }
+
+ printk (" The failed \"%s\" packet command was: \n \"", s);
+ for (i=0; i<sizeof (failed_command->c); i++)
+ printk ("%02x ", failed_command->c[i]);
+ printk ("\"\n");
+ }
+
+ /* The SKSV bit specifies validity of the sense_key_specific
+ * in the next two commands. It is bit 7 of the first byte.
+ * In the case of NOT_READY, if SKSV is set the drive can
+ * give us nice ETA readings.
+ */
+ if (sense->sense_key == NOT_READY && (sense->sks[0] & 0x80)) {
+ int progress = (sense->sks[1] << 8 | sense->sks[2]) * 100;
+ printk(" Command is %02d%% complete\n", progress / 0xffff);
+
+ }
+
+ if (sense->sense_key == ILLEGAL_REQUEST &&
+ (sense->sks[0] & 0x80) != 0) {
+ printk(" Error in %s byte %d",
+ (sense->sks[0] & 0x40) != 0 ?
+ "command packet" : "command data",
+ (sense->sks[1] << 8) + sense->sks[2]);
+
+ if ((sense->sks[0] & 0x40) != 0)
+ printk (" bit %d", sense->sks[0] & 0x07);
+
+ printk ("\n");
+ }
+ }
+
+#else /* not VERBOSE_IDE_CD_ERRORS */
+
+ /* Suppress printing unit attention and `in progress of becoming ready'
+ errors when we're not being verbose. */
+
+ if (sense->sense_key == UNIT_ATTENTION ||
+ (sense->sense_key == NOT_READY && (sense->asc == 4 ||
+ sense->asc == 0x3a)))
+ return;
+
+ printk("%s: error code: 0x%02x sense_key: 0x%02x asc: 0x%02x ascq: 0x%02x\n",
+ drive->name,
+ sense->error_code, sense->sense_key,
+ sense->asc, sense->ascq);
+#endif /* not VERBOSE_IDE_CD_ERRORS */
+}
+
+static void cdrom_queue_request_sense(ide_drive_t *drive,
+ struct completion *wait,
+ struct request_sense *sense,
+ struct packet_command *failed_command)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct packet_command *pc = &info->request_sense_pc;
+ struct request *rq;
+
+ if (sense == NULL)
+ sense = &info->sense_data;
+
+ memset(pc, 0, sizeof(struct packet_command));
+ pc->c[0] = GPCMD_REQUEST_SENSE;
+ pc->c[4] = pc->buflen = 18;
+ pc->buffer = (char *) sense;
+ pc->sense = (struct request_sense *) failed_command;
+
+ /* stuff the sense request in front of our current request */
+ rq = &info->request_sense_request;
+ ide_init_drive_cmd(rq);
+ rq->cmd = REQUEST_SENSE_COMMAND;
+ rq->buffer = (char *) pc;
+ rq->waiting = wait;
+ (void) ide_do_drive_cmd(drive, rq, ide_preempt);
+}
+
+
+static void cdrom_end_request (int uptodate, ide_drive_t *drive)
+{
+ struct request *rq = HWGROUP(drive)->rq;
+
+ if (rq->cmd == REQUEST_SENSE_COMMAND && uptodate) {
+ struct packet_command *pc = (struct packet_command *) rq->buffer;
+ cdrom_analyze_sense_data(drive,
+ (struct packet_command *) pc->sense,
+ (struct request_sense *) (pc->buffer - pc->c[4]));
+ }
+ if (rq->cmd == READ || rq->cmd == WRITE)
+ if (!rq->current_nr_sectors)
+ uptodate = 1;
+
+ ide_end_request (uptodate, HWGROUP(drive));
+}
+
+
+/* Returns 0 if the request should be continued.
+ Returns 1 if the request was ended. */
+static int cdrom_decode_status (ide_startstop_t *startstop, ide_drive_t *drive,
+ int good_stat, int *stat_ret)
+{
+ struct request *rq = HWGROUP(drive)->rq;
+ int stat, err, sense_key;
+ struct packet_command *pc;
+
+ /* Check for errors. */
+ stat = GET_STAT();
+ *stat_ret = stat;
+
+ if (OK_STAT (stat, good_stat, BAD_R_STAT))
+ return 0;
+
+ /* Get the IDE error register. */
+ err = GET_ERR();
+ sense_key = err >> 4;
+
+ if (rq == NULL) {
+ printk("%s: missing rq in cdrom_decode_status\n", drive->name);
+ *startstop = ide_stopped;
+ return 1;
+ }
+
+ if (rq->cmd == REQUEST_SENSE_COMMAND) {
+ /* We got an error trying to get sense info
+ from the drive (probably while trying
+ to recover from a former error). Just give up. */
+
+ pc = (struct packet_command *) rq->buffer;
+ pc->stat = 1;
+ cdrom_end_request (1, drive);
+ *startstop = ide_error (drive, "request sense failure", stat);
+ return 1;
+
+ } else if (rq->cmd == PACKET_COMMAND) {
+ /* All other functions, except for READ. */
+ struct completion *wait = NULL;
+ pc = (struct packet_command *) rq->buffer;
+
+ /* Check for tray open. */
+ if (sense_key == NOT_READY) {
+ cdrom_saw_media_change (drive);
+ } else if (sense_key == UNIT_ATTENTION) {
+ /* Check for media change. */
+ cdrom_saw_media_change (drive);
+ /*printk("%s: media changed\n",drive->name);*/
+ return 0;
+ } else if (!pc->quiet) {
+ /* Otherwise, print an error. */
+ ide_dump_status(drive, "packet command error", stat);
+ }
+
+ /* Set the error flag and complete the request.
+ Then, if we have a CHECK CONDITION status,
+ queue a request sense command. We must be careful,
+ though: we don't want the thread in
+ cdrom_queue_packet_command to wake up until
+ the request sense has completed. We do this
+ by transferring the semaphore from the packet
+ command request to the request sense request. */
+
+ if ((stat & ERR_STAT) != 0) {
+ wait = rq->waiting;
+ rq->waiting = NULL;
+ }
+
+ pc->stat = 1;
+ cdrom_end_request (1, drive);
+
+ if ((stat & ERR_STAT) != 0)
+ cdrom_queue_request_sense(drive, wait, pc->sense, pc);
+ } else {
+ /* Handle errors from READ and WRITE requests. */
+
+ if (sense_key == NOT_READY) {
+ /* Tray open. */
+ cdrom_saw_media_change (drive);
+
+ /* Fail the request. */
+ printk ("%s: tray open\n", drive->name);
+ cdrom_end_request (0, drive);
+ } else if (sense_key == UNIT_ATTENTION) {
+ /* Media change. */
+ cdrom_saw_media_change (drive);
+
+ /* Arrange to retry the request.
+ But be sure to give up if we've retried
+ too many times. */
+ if (++rq->errors > ERROR_MAX)
+ cdrom_end_request (0, drive);
+ } else if (sense_key == ILLEGAL_REQUEST ||
+ sense_key == DATA_PROTECT) {
+ /* No point in retrying after an illegal
+ request or data protect error.*/
+ ide_dump_status (drive, "command error", stat);
+ cdrom_end_request (0, drive);
+ } else if ((err & ~ABRT_ERR) != 0) {
+ /* Go to the default handler
+ for other errors. */
+ *startstop = ide_error (drive, "cdrom_decode_status", stat);
+ return 1;
+ } else if ((++rq->errors > ERROR_MAX)) {
+ /* We've racked up too many retries. Abort. */
+ cdrom_end_request (0, drive);
+ }
+
+ /* If we got a CHECK_CONDITION status,
+ queue a request sense command. */
+ if ((stat & ERR_STAT) != 0)
+ cdrom_queue_request_sense(drive, NULL, NULL, NULL);
+ }
+
+ /* Retry, or handle the next request. */
+ *startstop = ide_stopped;
+ return 1;
+}
+
+static int cdrom_timer_expiry(ide_drive_t *drive)
+{
+ struct request *rq = HWGROUP(drive)->rq;
+ struct packet_command *pc = (struct packet_command *) rq->buffer;
+ unsigned long wait = 0;
+
+ /*
+ * Some commands are *slow* and normally take a long time to
+ * complete. Usually we can use the ATAPI "disconnect" to bypass
+ * this, but not all commands/drives support that. Let
+ * ide_timer_expiry keep polling us for these.
+ */
+ switch (pc->c[0]) {
+ case GPCMD_BLANK:
+ case GPCMD_FORMAT_UNIT:
+ case GPCMD_RESERVE_RZONE_TRACK:
+ wait = WAIT_CMD;
+ break;
+ default:
+ wait = 0;
+ break;
+ }
+ return wait;
+}
+
+/* Set up the device registers for transferring a packet command on DEV,
+ expecting to later transfer XFERLEN bytes. HANDLER is the routine
+ which actually transfers the command to the drive. If this is a
+ drq_interrupt device, this routine will arrange for HANDLER to be
+ called when the interrupt from the drive arrives. Otherwise, HANDLER
+ will be called immediately after the drive is prepared for the transfer. */
+
+static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
+ int xferlen,
+ ide_handler_t *handler)
+{
+ ide_startstop_t startstop;
+ struct cdrom_info *info = drive->driver_data;
+
+ /* Wait for the controller to be idle. */
+ if (ide_wait_stat(&startstop, drive, 0, BUSY_STAT, WAIT_READY))
+ return startstop;
+
+ if (info->dma) {
+ if (info->cmd == READ) {
+ info->dma = !HWIF(drive)->dmaproc(ide_dma_read, drive);
+ } else if (info->cmd == WRITE) {
+ info->dma = !HWIF(drive)->dmaproc(ide_dma_write, drive);
+ } else {
+ printk("ide-cd: DMA set, but not allowed\n");
+ }
+ }
+
+ /* Set up the controller registers. */
+ OUT_BYTE (info->dma, IDE_FEATURE_REG);
+ OUT_BYTE (0, IDE_NSECTOR_REG);
+ OUT_BYTE (0, IDE_SECTOR_REG);
+
+ OUT_BYTE (xferlen & 0xff, IDE_LCYL_REG);
+ OUT_BYTE (xferlen >> 8 , IDE_HCYL_REG);
+ if (IDE_CONTROL_REG)
+ OUT_BYTE (drive->ctl, IDE_CONTROL_REG);
+
+ if (info->dma)
+ (void) (HWIF(drive)->dmaproc(ide_dma_begin, drive));
+
+ if (CDROM_CONFIG_FLAGS (drive)->drq_interrupt) {
+ ide_set_handler (drive, handler, WAIT_CMD, cdrom_timer_expiry);
+ OUT_BYTE (WIN_PACKETCMD, IDE_COMMAND_REG); /* packet command */
+ return ide_started;
+ } else {
+ OUT_BYTE (WIN_PACKETCMD, IDE_COMMAND_REG); /* packet command */
+ return (*handler) (drive);
+ }
+}
+
+/* Send a packet command to DRIVE described by CMD_BUF and CMD_LEN.
+ The device registers must have already been prepared
+ by cdrom_start_packet_command.
+ HANDLER is the interrupt handler to call when the command completes
+ or there's data ready. */
+/*
+ * changed 5 parameters to 3 for dvd-ram
+ * struct packet_command *pc; now packet_command_t *pc;
+ */
+static ide_startstop_t cdrom_transfer_packet_command (ide_drive_t *drive,
+ struct packet_command *pc,
+ ide_handler_t *handler)
+{
+ unsigned char *cmd_buf = pc->c;
+ int cmd_len = sizeof(pc->c);
+ unsigned int timeout = pc->timeout;
+ ide_startstop_t startstop;
+
+ if (CDROM_CONFIG_FLAGS (drive)->drq_interrupt) {
+ /* Here we should have been called after receiving an interrupt
+ from the device. DRQ should how be set. */
+ int stat_dum;
+
+ /* Check for errors. */
+ if (cdrom_decode_status (&startstop, drive, DRQ_STAT, &stat_dum))
+ return startstop;
+ } else {
+ /* Otherwise, we must wait for DRQ to get set. */
+ if (ide_wait_stat (&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY))
+ return startstop;
+ }
+
+ /* Arm the interrupt handler. */
+ ide_set_handler (drive, handler, timeout, cdrom_timer_expiry);
+
+ /* Send the command to the device. */
+ atapi_output_bytes (drive, cmd_buf, cmd_len);
+ return ide_started;
+}
+
+/****************************************************************************
+ * Block read functions.
+ */
+
+/*
+ * Buffer up to SECTORS_TO_TRANSFER sectors from the drive in our sector
+ * buffer. Once the first sector is added, any subsequent sectors are
+ * assumed to be continuous (until the buffer is cleared). For the first
+ * sector added, SECTOR is its sector number. (SECTOR is then ignored until
+ * the buffer is cleared.)
+ */
+static void cdrom_buffer_sectors (ide_drive_t *drive, unsigned long sector,
+ int sectors_to_transfer)
+{
+ struct cdrom_info *info = drive->driver_data;
+
+ /* Number of sectors to read into the buffer. */
+ int sectors_to_buffer = MIN (sectors_to_transfer,
+ (SECTOR_BUFFER_SIZE >> SECTOR_BITS) -
+ info->nsectors_buffered);
+
+ char *dest;
+
+ /* If we couldn't get a buffer, don't try to buffer anything... */
+ if (info->buffer == NULL)
+ sectors_to_buffer = 0;
+
+ /* If this is the first sector in the buffer, remember its number. */
+ if (info->nsectors_buffered == 0)
+ info->sector_buffered = sector;
+
+ /* Read the data into the buffer. */
+ dest = info->buffer + info->nsectors_buffered * SECTOR_SIZE;
+ while (sectors_to_buffer > 0) {
+ atapi_input_bytes (drive, dest, SECTOR_SIZE);
+ --sectors_to_buffer;
+ --sectors_to_transfer;
+ ++info->nsectors_buffered;
+ dest += SECTOR_SIZE;
+ }
+
+ /* Throw away any remaining data. */
+ while (sectors_to_transfer > 0) {
+ char dum[SECTOR_SIZE];
+ atapi_input_bytes (drive, dum, sizeof (dum));
+ --sectors_to_transfer;
+ }
+}
+
+/*
+ * Check the contents of the interrupt reason register from the cdrom
+ * and attempt to recover if there are problems. Returns 0 if everything's
+ * ok; nonzero if the request has been terminated.
+ */
+static inline
+int cdrom_read_check_ireason (ide_drive_t *drive, int len, int ireason)
+{
+ ireason &= 3;
+ if (ireason == 2) return 0;
+
+ if (ireason == 0) {
+ /* Whoops... The drive is expecting to receive data from us! */
+ printk ("%s: cdrom_read_intr: "
+ "Drive wants to transfer data the wrong way!\n",
+ drive->name);
+
+ /* Throw some data at the drive so it doesn't hang
+ and quit this request. */
+ while (len > 0) {
+ int dum = 0;
+ atapi_output_bytes (drive, &dum, sizeof (dum));
+ len -= sizeof (dum);
+ }
+ } else if (ireason == 1) {
+ /* Some drives (ASUS) seem to tell us that status
+ * info is available. just get it and ignore.
+ */
+ GET_STAT();
+ return 0;
+ } else {
+ /* Drive wants a command packet, or invalid ireason... */
+ printk ("%s: cdrom_read_intr: bad interrupt reason %d\n",
+ drive->name, ireason);
+ }
+
+ cdrom_end_request (0, drive);
+ return -1;
+}
+
+/*
+ * Interrupt routine. Called when a read request has completed.
+ */
+static ide_startstop_t cdrom_read_intr (ide_drive_t *drive)
+{
+ int stat;
+ int ireason, len, sectors_to_transfer, nskip;
+ struct cdrom_info *info = drive->driver_data;
+ int i, dma = info->dma, dma_error = 0;
+ ide_startstop_t startstop;
+
+ struct request *rq = HWGROUP(drive)->rq;
+
+ /* Check for errors. */
+ if (dma) {
+ info->dma = 0;
+ if ((dma_error = HWIF(drive)->dmaproc(ide_dma_end, drive)))
+ HWIF(drive)->dmaproc(ide_dma_off, drive);
+ }
+
+ if (cdrom_decode_status (&startstop, drive, 0, &stat))
+ return startstop;
+
+ if (dma) {
+ if (!dma_error) {
+ for (i = rq->nr_sectors; i > 0;) {
+ i -= rq->current_nr_sectors;
+ ide_end_request(1, HWGROUP(drive));
+ }
+ return ide_stopped;
+ } else
+ return ide_error (drive, "dma error", stat);
+ }
+
+ /* Read the interrupt reason and the transfer length. */
+ ireason = IN_BYTE (IDE_NSECTOR_REG);
+ len = IN_BYTE (IDE_LCYL_REG) + 256 * IN_BYTE (IDE_HCYL_REG);
+
+ /* If DRQ is clear, the command has completed. */
+ if ((stat & DRQ_STAT) == 0) {
+ /* If we're not done filling the current buffer, complain.
+ Otherwise, complete the command normally. */
+ if (rq->current_nr_sectors > 0) {
+ printk ("%s: cdrom_read_intr: data underrun (%ld blocks)\n",
+ drive->name, rq->current_nr_sectors);
+ cdrom_end_request (0, drive);
+ } else
+ cdrom_end_request (1, drive);
+ return ide_stopped;
+ }
+
+ /* Check that the drive is expecting to do the same thing we are. */
+ if (cdrom_read_check_ireason (drive, len, ireason))
+ return ide_stopped;
+
+ /* Assume that the drive will always provide data in multiples
+ of at least SECTOR_SIZE, as it gets hairy to keep track
+ of the transfers otherwise. */
+ if ((len % SECTOR_SIZE) != 0) {
+ printk ("%s: cdrom_read_intr: Bad transfer size %d\n",
+ drive->name, len);
+ if (CDROM_CONFIG_FLAGS (drive)->limit_nframes)
+ printk (" This drive is not supported by this version of the driver\n");
+ else {
+ printk (" Trying to limit transfer sizes\n");
+ CDROM_CONFIG_FLAGS (drive)->limit_nframes = 1;
+ }
+ cdrom_end_request (0, drive);
+ return ide_stopped;
+ }
+
+ /* The number of sectors we need to read from the drive. */
+ sectors_to_transfer = len / SECTOR_SIZE;
+
+ /* First, figure out if we need to bit-bucket
+ any of the leading sectors. */
+ nskip = MIN ((int)(rq->current_nr_sectors - (rq->bh->b_size >> SECTOR_BITS)),
+ sectors_to_transfer);
+
+ while (nskip > 0) {
+ /* We need to throw away a sector. */
+ char dum[SECTOR_SIZE];
+ atapi_input_bytes (drive, dum, sizeof (dum));
+
+ --rq->current_nr_sectors;
+ --nskip;
+ --sectors_to_transfer;
+ }
+
+ /* Now loop while we still have data to read from the drive. */
+ while (sectors_to_transfer > 0) {
+ int this_transfer;
+
+ /* If we've filled the present buffer but there's another
+ chained buffer after it, move on. */
+ if (rq->current_nr_sectors == 0 && rq->nr_sectors)
+ cdrom_end_request (1, drive);
+
+ /* If the buffers are full, cache the rest of the data in our
+ internal buffer. */
+ if (rq->current_nr_sectors == 0) {
+ cdrom_buffer_sectors(drive, rq->sector, sectors_to_transfer);
+ sectors_to_transfer = 0;
+ } else {
+ /* Transfer data to the buffers.
+ Figure out how many sectors we can transfer
+ to the current buffer. */
+ this_transfer = MIN (sectors_to_transfer,
+ rq->current_nr_sectors);
+
+ /* Read this_transfer sectors
+ into the current buffer. */
+ while (this_transfer > 0) {
+ atapi_input_bytes(drive, rq->buffer, SECTOR_SIZE);
+ rq->buffer += SECTOR_SIZE;
+ --rq->nr_sectors;
+ --rq->current_nr_sectors;
+ ++rq->sector;
+ --this_transfer;
+ --sectors_to_transfer;
+ }
+ }
+ }
+
+ /* Done moving data!
+ Wait for another interrupt. */
+ ide_set_handler(drive, &cdrom_read_intr, WAIT_CMD, NULL);
+ return ide_started;
+}
+
+/*
+ * Try to satisfy some of the current read request from our cached data.
+ * Returns nonzero if the request has been completed, zero otherwise.
+ */
+static int cdrom_read_from_buffer (ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct request *rq = HWGROUP(drive)->rq;
+
+ /* Can't do anything if there's no buffer. */
+ if (info->buffer == NULL) return 0;
+
+ /* Loop while this request needs data and the next block is present
+ in our cache. */
+ while (rq->nr_sectors > 0 &&
+ rq->sector >= info->sector_buffered &&
+ rq->sector < info->sector_buffered + info->nsectors_buffered) {
+ if (rq->current_nr_sectors == 0)
+ cdrom_end_request (1, drive);
+
+ memcpy (rq->buffer,
+ info->buffer +
+ (rq->sector - info->sector_buffered) * SECTOR_SIZE,
+ SECTOR_SIZE);
+ rq->buffer += SECTOR_SIZE;
+ --rq->current_nr_sectors;
+ --rq->nr_sectors;
+ ++rq->sector;
+ }
+
+ /* If we've satisfied the current request,
+ terminate it successfully. */
+ if (rq->nr_sectors == 0) {
+ cdrom_end_request (1, drive);
+ return -1;
+ }
+
+ /* Move on to the next buffer if needed. */
+ if (rq->current_nr_sectors == 0)
+ cdrom_end_request (1, drive);
+
+ /* If this condition does not hold, then the kluge i use to
+ represent the number of sectors to skip at the start of a transfer
+ will fail. I think that this will never happen, but let's be
+ paranoid and check. */
+ if (rq->current_nr_sectors < (rq->bh->b_size >> SECTOR_BITS) &&
+ (rq->sector % SECTORS_PER_FRAME) != 0) {
+ printk ("%s: cdrom_read_from_buffer: buffer botch (%ld)\n",
+ drive->name, rq->sector);
+ cdrom_end_request (0, drive);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Routine to send a read packet command to the drive.
+ * This is usually called directly from cdrom_start_read.
+ * However, for drq_interrupt devices, it is called from an interrupt
+ * when the drive is ready to accept the command.
+ */
+static ide_startstop_t cdrom_start_read_continuation (ide_drive_t *drive)
+{
+ struct packet_command pc;
+ struct request *rq = HWGROUP(drive)->rq;
+ int nsect, sector, nframes, frame, nskip;
+
+ /* Number of sectors to transfer. */
+ nsect = rq->nr_sectors;
+
+ /* Starting sector. */
+ sector = rq->sector;
+
+ /* If the requested sector doesn't start on a cdrom block boundary,
+ we must adjust the start of the transfer so that it does,
+ and remember to skip the first few sectors.
+ If the CURRENT_NR_SECTORS field is larger than the size
+ of the buffer, it will mean that we're to skip a number
+ of sectors equal to the amount by which CURRENT_NR_SECTORS
+ is larger than the buffer size. */
+ nskip = (sector % SECTORS_PER_FRAME);
+ if (nskip > 0) {
+ /* Sanity check... */
+ if (rq->current_nr_sectors != (rq->bh->b_size >> SECTOR_BITS) &&
+ (rq->sector % CD_FRAMESIZE != 0)) {
+ printk ("%s: cdrom_start_read_continuation: buffer botch (%lu)\n",
+ drive->name, rq->current_nr_sectors);
+ cdrom_end_request (0, drive);
+ return ide_stopped;
+ }
+ sector -= nskip;
+ nsect += nskip;
+ rq->current_nr_sectors += nskip;
+ }
+
+ /* Convert from sectors to cdrom blocks, rounding up the transfer
+ length if needed. */
+ nframes = (nsect + SECTORS_PER_FRAME-1) / SECTORS_PER_FRAME;
+ frame = sector / SECTORS_PER_FRAME;
+
+ /* Largest number of frames was can transfer at once is 64k-1. For
+ some drives we need to limit this even more. */
+ nframes = MIN (nframes, (CDROM_CONFIG_FLAGS (drive)->limit_nframes) ?
+ (65534 / CD_FRAMESIZE) : 65535);
+
+ /* Set up the command */
+ memset (&pc.c, 0, sizeof (pc.c));
+ pc.c[0] = GPCMD_READ_10;
+ pc.c[7] = (nframes >> 8);
+ pc.c[8] = (nframes & 0xff);
+ put_unaligned(cpu_to_be32(frame), (unsigned int *) &pc.c[2]);
+ pc.timeout = WAIT_CMD;
+
+ /* Send the command to the drive and return. */
+ return cdrom_transfer_packet_command(drive, &pc, &cdrom_read_intr);
+}
+
+
+#define IDECD_SEEK_THRESHOLD (1000) /* 1000 blocks */
+#define IDECD_SEEK_TIMER (5 * WAIT_MIN_SLEEP) /* 100 ms */
+#define IDECD_SEEK_TIMEOUT WAIT_CMD /* 10 sec */
+
+static ide_startstop_t cdrom_seek_intr (ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ int stat;
+ static int retry = 10;
+ ide_startstop_t startstop;
+
+ if (cdrom_decode_status (&startstop, drive, 0, &stat))
+ return startstop;
+ CDROM_CONFIG_FLAGS(drive)->seeking = 1;
+
+ if (retry && jiffies - info->start_seek > IDECD_SEEK_TIMER) {
+ if (--retry == 0) {
+ /*
+ * this condition is far too common, to bother
+ * users about it
+ */
+#if 0
+ printk("%s: disabled DSC seek overlap\n", drive->name);
+#endif
+ drive->dsc_overlap = 0;
+ }
+ }
+ return ide_stopped;
+}
+
+static ide_startstop_t cdrom_start_seek_continuation (ide_drive_t *drive)
+{
+ struct packet_command pc;
+ struct request *rq = HWGROUP(drive)->rq;
+ int sector, frame, nskip;
+
+ sector = rq->sector;
+ nskip = (sector % SECTORS_PER_FRAME);
+ if (nskip > 0)
+ sector -= nskip;
+ frame = sector / SECTORS_PER_FRAME;
+
+ memset (&pc.c, 0, sizeof (pc.c));
+ pc.c[0] = GPCMD_SEEK;
+ put_unaligned(cpu_to_be32(frame), (unsigned int *) &pc.c[2]);
+
+ pc.timeout = WAIT_CMD;
+ return cdrom_transfer_packet_command(drive, &pc, &cdrom_seek_intr);
+}
+
+static ide_startstop_t cdrom_start_seek (ide_drive_t *drive, unsigned int block)
+{
+ struct cdrom_info *info = drive->driver_data;
+
+ info->dma = 0;
+ info->cmd = 0;
+ info->start_seek = jiffies;
+ return cdrom_start_packet_command (drive, 0, cdrom_start_seek_continuation);
+}
+
+static inline int cdrom_merge_requests(struct request *rq, struct request *nxt)
+{
+ int ret = 1;
+
+ /*
+ * partitions not really working, but better check anyway...
+ */
+ if (rq->cmd == nxt->cmd && rq->rq_dev == nxt->rq_dev) {
+ rq->nr_sectors += nxt->nr_sectors;
+ rq->hard_nr_sectors += nxt->nr_sectors;
+ rq->bhtail->b_reqnext = nxt->bh;
+ rq->bhtail = nxt->bhtail;
+ list_del(&nxt->queue);
+ blkdev_release_request(nxt);
+ ret = 0;
+ }
+
+ return ret;
+}
+
+/*
+ * the current request will always be the first one on the list
+ */
+static void cdrom_attempt_remerge(ide_drive_t *drive, struct request *rq)
+{
+ struct list_head *entry;
+ struct request *nxt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&io_request_lock, flags);
+
+ while (1) {
+ entry = rq->queue.next;
+ if (entry == &drive->queue.queue_head)
+ break;
+
+ nxt = blkdev_entry_to_request(entry);
+ if (rq->sector + rq->nr_sectors != nxt->sector)
+ break;
+ else if (rq->nr_sectors + nxt->nr_sectors > SECTORS_MAX)
+ break;
+
+ if (cdrom_merge_requests(rq, nxt))
+ break;
+ }
+
+ spin_unlock_irqrestore(&io_request_lock, flags);
+}
+
+/* Fix up a possibly partially-processed request so that we can
+ start it over entirely, or even put it back on the request queue. */
+static void restore_request (struct request *rq)
+{
+ if (rq->buffer != rq->bh->b_data) {
+ int n = (rq->buffer - rq->bh->b_data) / SECTOR_SIZE;
+ rq->buffer = rq->bh->b_data;
+ rq->nr_sectors += n;
+ rq->sector -= n;
+ }
+ rq->current_nr_sectors = rq->bh->b_size >> SECTOR_BITS;
+ rq->hard_nr_sectors = rq->nr_sectors;
+ rq->hard_sector = rq->sector;
+}
+
+/*
+ * Start a read request from the CD-ROM.
+ */
+static ide_startstop_t cdrom_start_read (ide_drive_t *drive, unsigned int block)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct request *rq = HWGROUP(drive)->rq;
+ int minor = MINOR (rq->rq_dev);
+
+ /* If the request is relative to a partition, fix it up to refer to the
+ absolute address. */
+ if (minor & PARTN_MASK) {
+ rq->sector = block;
+ minor &= ~PARTN_MASK;
+ rq->rq_dev = MKDEV(MAJOR(rq->rq_dev), minor);
+ }
+
+ /* We may be retrying this request after an error. Fix up
+ any weirdness which might be present in the request packet. */
+ restore_request(rq);
+
+ /* Satisfy whatever we can of this request from our cached sector. */
+ if (cdrom_read_from_buffer(drive))
+ return ide_stopped;
+
+ cdrom_attempt_remerge(drive, rq);
+
+ /* Clear the local sector buffer. */
+ info->nsectors_buffered = 0;
+
+ /* use dma, if possible. */
+ if (drive->using_dma && (rq->sector % SECTORS_PER_FRAME == 0) &&
+ (rq->nr_sectors % SECTORS_PER_FRAME == 0))
+ info->dma = 1;
+ else
+ info->dma = 0;
+
+ info->cmd = READ;
+ /* Start sending the read request to the drive. */
+ return cdrom_start_packet_command(drive, 32768, cdrom_start_read_continuation);
+}
+
+/****************************************************************************
+ * Execute all other packet commands.
+ */
+
+/* Forward declarations. */
+static int cdrom_lockdoor(ide_drive_t *drive, int lockflag,
+ struct request_sense *sense);
+
+/* Interrupt routine for packet command completion. */
+static ide_startstop_t cdrom_pc_intr (ide_drive_t *drive)
+{
+ int ireason, len, stat, thislen;
+ struct request *rq = HWGROUP(drive)->rq;
+ struct packet_command *pc = (struct packet_command *)rq->buffer;
+ ide_startstop_t startstop;
+
+ /* Check for errors. */
+ if (cdrom_decode_status (&startstop, drive, 0, &stat))
+ return startstop;
+
+ /* Read the interrupt reason and the transfer length. */
+ ireason = IN_BYTE (IDE_NSECTOR_REG);
+ len = IN_BYTE (IDE_LCYL_REG) + 256 * IN_BYTE (IDE_HCYL_REG);
+
+ /* If DRQ is clear, the command has completed.
+ Complain if we still have data left to transfer. */
+ if ((stat & DRQ_STAT) == 0) {
+ /* Some of the trailing request sense fields are optional, and
+ some drives don't send them. Sigh. */
+ if (pc->c[0] == GPCMD_REQUEST_SENSE &&
+ pc->buflen > 0 &&
+ pc->buflen <= 5) {
+ while (pc->buflen > 0) {
+ *pc->buffer++ = 0;
+ --pc->buflen;
+ }
+ }
+
+ if (pc->buflen == 0)
+ cdrom_end_request (1, drive);
+ else {
+ /* Comment this out, because this always happens
+ right after a reset occurs, and it is annoying to
+ always print expected stuff. */
+ /*
+ printk ("%s: cdrom_pc_intr: data underrun %d\n",
+ drive->name, pc->buflen);
+ */
+ pc->stat = 1;
+ cdrom_end_request (1, drive);
+ }
+ return ide_stopped;
+ }
+
+ /* Figure out how much data to transfer. */
+ thislen = pc->buflen;
+ if (thislen > len) thislen = len;
+
+ /* The drive wants to be written to. */
+ if ((ireason & 3) == 0) {
+ /* Transfer the data. */
+ atapi_output_bytes (drive, pc->buffer, thislen);
+
+ /* If we haven't moved enough data to satisfy the drive,
+ add some padding. */
+ while (len > thislen) {
+ int dum = 0;
+ atapi_output_bytes (drive, &dum, sizeof (dum));
+ len -= sizeof (dum);
+ }
+
+ /* Keep count of how much data we've moved. */
+ pc->buffer += thislen;
+ pc->buflen -= thislen;
+ }
+
+ /* Same drill for reading. */
+ else if ((ireason & 3) == 2) {
+
+ /* Transfer the data. */
+ atapi_input_bytes (drive, pc->buffer, thislen);
+
+ /* If we haven't moved enough data to satisfy the drive,
+ add some padding. */
+ while (len > thislen) {
+ int dum = 0;
+ atapi_input_bytes (drive, &dum, sizeof (dum));
+ len -= sizeof (dum);
+ }
+
+ /* Keep count of how much data we've moved. */
+ pc->buffer += thislen;
+ pc->buflen -= thislen;
+ } else {
+ printk ("%s: cdrom_pc_intr: The drive "
+ "appears confused (ireason = 0x%2x)\n",
+ drive->name, ireason);
+ pc->stat = 1;
+ }
+
+ /* Now we wait for another interrupt. */
+ ide_set_handler (drive, &cdrom_pc_intr, WAIT_CMD, cdrom_timer_expiry);
+ return ide_started;
+}
+
+
+static ide_startstop_t cdrom_do_pc_continuation (ide_drive_t *drive)
+{
+ struct request *rq = HWGROUP(drive)->rq;
+ struct packet_command *pc = (struct packet_command *)rq->buffer;
+
+ if (!pc->timeout)
+ pc->timeout = WAIT_CMD;
+
+ /* Send the command to the drive and return. */
+ return cdrom_transfer_packet_command(drive, pc, &cdrom_pc_intr);
+}
+
+
+static ide_startstop_t cdrom_do_packet_command (ide_drive_t *drive)
+{
+ int len;
+ struct request *rq = HWGROUP(drive)->rq;
+ struct packet_command *pc = (struct packet_command *)rq->buffer;
+ struct cdrom_info *info = drive->driver_data;
+
+ info->dma = 0;
+ info->cmd = 0;
+ pc->stat = 0;
+ len = pc->buflen;
+
+ /* Start sending the command to the drive. */
+ return cdrom_start_packet_command (drive, len, cdrom_do_pc_continuation);
+}
+
+
+/* Sleep for TIME jiffies.
+ Not to be called from an interrupt handler. */
+static
+void cdrom_sleep (int time)
+{
+ int sleep = time;
+
+ do {
+ set_current_state(TASK_INTERRUPTIBLE);
+ sleep = schedule_timeout(sleep);
+ } while (sleep);
+}
+
+static
+int cdrom_queue_packet_command(ide_drive_t *drive, struct packet_command *pc)
+{
+ struct request_sense sense;
+ struct request req;
+ int retries = 10;
+
+ if (pc->sense == NULL)
+ pc->sense = &sense;
+
+ /* Start of retry loop. */
+ do {
+ ide_init_drive_cmd (&req);
+ req.cmd = PACKET_COMMAND;
+ req.buffer = (char *)pc;
+ if (ide_do_drive_cmd (drive, &req, ide_wait)) {
+ printk("%s: do_drive_cmd returned stat=%02x,err=%02x\n",
+ drive->name, req.buffer[0], req.buffer[1]);
+ /* FIXME: we should probably abort/retry or something */
+ }
+ if (pc->stat != 0) {
+ /* The request failed. Retry if it was due to a unit
+ attention status
+ (usually means media was changed). */
+ struct request_sense *reqbuf = pc->sense;
+
+ if (reqbuf->sense_key == UNIT_ATTENTION)
+ cdrom_saw_media_change (drive);
+ else if (reqbuf->sense_key == NOT_READY &&
+ reqbuf->asc == 4 && reqbuf->ascq != 4) {
+ /* The drive is in the process of loading
+ a disk. Retry, but wait a little to give
+ the drive time to complete the load. */
+ cdrom_sleep(2 * HZ);
+ } else {
+ /* Otherwise, don't retry. */
+ retries = 0;
+ }
+ --retries;
+ }
+
+ /* End of retry loop. */
+ } while (pc->stat != 0 && retries >= 0);
+
+ /* Return an error if the command failed. */
+ return pc->stat ? -EIO : 0;
+}
+
+/*
+ * Write handling
+ */
+static inline int cdrom_write_check_ireason(ide_drive_t *drive, int len, int ireason)
+{
+ /* Two notes about IDE interrupt reason here - 0 means that
+ * the drive wants to receive data from us, 2 means that
+ * the drive is expecting data from us.
+ */
+ ireason &= 3;
+
+ if (ireason == 2) {
+ /* Whoops... The drive wants to send data. */
+ printk("%s: cdrom_write_intr: wrong transfer direction!\n",
+ drive->name);
+
+ /* Throw some data at the drive so it doesn't hang
+ and quit this request. */
+ while (len > 0) {
+ int dum = 0;
+ atapi_output_bytes(drive, &dum, sizeof(dum));
+ len -= sizeof(dum);
+ }
+ } else {
+ /* Drive wants a command packet, or invalid ireason... */
+ printk("%s: cdrom_write_intr: bad interrupt reason %d\n",
+ drive->name, ireason);
+ }
+
+ cdrom_end_request(0, drive);
+ return 1;
+}
+
+static ide_startstop_t cdrom_write_intr(ide_drive_t *drive)
+{
+ int stat, ireason, len, sectors_to_transfer, uptodate;
+ struct cdrom_info *info = drive->driver_data;
+ int i, dma_error = 0, dma = info->dma;
+ ide_startstop_t startstop;
+
+ struct request *rq = HWGROUP(drive)->rq;
+
+ /* Check for errors. */
+ if (dma) {
+ info->dma = 0;
+ if ((dma_error = HWIF(drive)->dmaproc(ide_dma_end, drive))) {
+ printk("ide-cd: write dma error\n");
+ HWIF(drive)->dmaproc(ide_dma_off, drive);
+ }
+ }
+
+ if (cdrom_decode_status(&startstop, drive, 0, &stat)) {
+ printk("ide-cd: write_intr decode_status bad\n");
+ return startstop;
+ }
+
+ /*
+ * using dma, transfer is complete now
+ */
+ if (dma) {
+ if (dma_error)
+ return ide_error(drive, "dma error", stat);
+
+ rq = HWGROUP(drive)->rq;
+ for (i = rq->nr_sectors; i > 0;) {
+ i -= rq->current_nr_sectors;
+ ide_end_request(1, HWGROUP(drive));
+ }
+ return ide_stopped;
+ }
+
+ /* Read the interrupt reason and the transfer length. */
+ ireason = IN_BYTE(IDE_NSECTOR_REG);
+ len = IN_BYTE(IDE_LCYL_REG) + 256 * IN_BYTE(IDE_HCYL_REG);
+
+ /* If DRQ is clear, the command has completed. */
+ if ((stat & DRQ_STAT) == 0) {
+ /* If we're not done writing, complain.
+ * Otherwise, complete the command normally.
+ */
+ uptodate = 1;
+ if (rq->current_nr_sectors > 0) {
+ printk("%s: write_intr: data underrun (%ld blocks)\n",
+ drive->name, rq->current_nr_sectors);
+ uptodate = 0;
+ }
+ cdrom_end_request(uptodate, drive);
+ return ide_stopped;
+ }
+
+ /* Check that the drive is expecting to do the same thing we are. */
+ if (ireason & 3)
+ if (cdrom_write_check_ireason(drive, len, ireason))
+ return ide_stopped;
+
+ sectors_to_transfer = len / SECTOR_SIZE;
+
+ /*
+ * now loop and write out the data
+ */
+ while (sectors_to_transfer > 0) {
+ int this_transfer;
+
+ if (!rq->current_nr_sectors) {
+ printk("ide-cd: write_intr: oops\n");
+ break;
+ }
+
+ /*
+ * Figure out how many sectors we can transfer
+ */
+ this_transfer = MIN(sectors_to_transfer,rq->current_nr_sectors);
+
+ while (this_transfer > 0) {
+ atapi_output_bytes(drive, rq->buffer, SECTOR_SIZE);
+ rq->buffer += SECTOR_SIZE;
+ --rq->nr_sectors;
+ --rq->current_nr_sectors;
+ ++rq->sector;
+ --this_transfer;
+ --sectors_to_transfer;
+ }
+
+ /*
+ * current buffer complete, move on
+ */
+ if (rq->current_nr_sectors == 0 && rq->nr_sectors)
+ cdrom_end_request (1, drive);
+ }
+
+ /* re-arm handler */
+ ide_set_handler(drive, &cdrom_write_intr, 5 * WAIT_CMD, NULL);
+ return ide_started;
+}
+
+static ide_startstop_t cdrom_start_write_cont(ide_drive_t *drive)
+{
+ struct packet_command pc; /* packet_command_t pc; */
+ struct request *rq = HWGROUP(drive)->rq;
+ unsigned nframes, frame;
+
+ nframes = rq->nr_sectors >> 2;
+ frame = rq->sector >> 2;
+
+ memset(&pc.c, 0, sizeof(pc.c));
+ /*
+ * we might as well use WRITE_12, but none of the device I have
+ * support the streaming feature anyway, so who cares.
+ */
+ pc.c[0] = GPCMD_WRITE_10;
+#if 0 /* the immediate bit */
+ pc.c[1] = 1 << 3;
+#endif
+ pc.c[7] = (nframes >> 8) & 0xff;
+ pc.c[8] = nframes & 0xff;
+ put_unaligned(cpu_to_be32(frame), (unsigned int *)&pc.c[2]);
+ pc.timeout = 2 * WAIT_CMD;
+
+ return cdrom_transfer_packet_command(drive, &pc, cdrom_write_intr);
+}
+
+static ide_startstop_t cdrom_start_write(ide_drive_t *drive, struct request *rq)
+{
+ struct cdrom_info *info = drive->driver_data;
+
+ /*
+ * writes *must* be 2kB frame aligned
+ */
+ if ((rq->nr_sectors & 3) || (rq->sector & 3)) {
+ cdrom_end_request(0, drive);
+ return ide_stopped;
+ }
+
+ /*
+ * for dvd-ram and such media, it's a really big deal to get
+ * big writes all the time. so scour the queue and attempt to
+ * remerge requests, often the plugging will not have had time
+ * to do this properly
+ */
+ cdrom_attempt_remerge(drive, rq);
+
+ info->nsectors_buffered = 0;
+
+ /* use dma, if possible. we don't need to check more, since we
+ * know that the transfer is always (at least!) 2KB aligned */
+ info->dma = drive->using_dma ? 1 : 0;
+ info->cmd = WRITE;
+
+ /* Start sending the read request to the drive. */
+ return cdrom_start_packet_command(drive, 32768, cdrom_start_write_cont);
+}
+
+/****************************************************************************
+ * cdrom driver request routine.
+ */
+static ide_startstop_t
+ide_do_rw_cdrom (ide_drive_t *drive, struct request *rq, unsigned long block)
+{
+ ide_startstop_t action;
+ struct cdrom_info *info = drive->driver_data;
+
+ switch (rq->cmd) {
+ case WRITE:
+ case READ: {
+ if (CDROM_CONFIG_FLAGS(drive)->seeking) {
+ unsigned long elpased = jiffies - info->start_seek;
+ int stat = GET_STAT();
+
+ if ((stat & SEEK_STAT) != SEEK_STAT) {
+ if (elpased < IDECD_SEEK_TIMEOUT) {
+ ide_stall_queue(drive, IDECD_SEEK_TIMER);
+ return ide_stopped;
+ }
+ printk ("%s: DSC timeout\n", drive->name);
+ }
+ CDROM_CONFIG_FLAGS(drive)->seeking = 0;
+ }
+ if (IDE_LARGE_SEEK(info->last_block, block, IDECD_SEEK_THRESHOLD) && drive->dsc_overlap)
+ action = cdrom_start_seek (drive, block);
+ else {
+ if (rq->cmd == READ)
+ action = cdrom_start_read(drive, block);
+ else
+ action = cdrom_start_write(drive, rq);
+ }
+ info->last_block = block;
+ return action;
+ }
+
+ case PACKET_COMMAND:
+ case REQUEST_SENSE_COMMAND: {
+ return cdrom_do_packet_command(drive);
+ }
+
+ case RESET_DRIVE_COMMAND: {
+ cdrom_end_request(1, drive);
+ return ide_do_reset(drive);
+ }
+
+ default: {
+ printk("ide-cd: bad cmd %d\n", rq->cmd);
+ cdrom_end_request(0, drive);
+ return ide_stopped;
+ }
+ }
+}
+
+
+
+/****************************************************************************
+ * Ioctl handling.
+ *
+ * Routines which queue packet commands take as a final argument a pointer
+ * to a request_sense struct. If execution of the command results
+ * in an error with a CHECK CONDITION status, this structure will be filled
+ * with the results of the subsequent request sense command. The pointer
+ * can also be NULL, in which case no sense information is returned.
+ */
+
+#if ! STANDARD_ATAPI
+static inline
+int bin2bcd (int x)
+{
+ return (x%10) | ((x/10) << 4);
+}
+
+
+static inline
+int bcd2bin (int x)
+{
+ return (x >> 4) * 10 + (x & 0x0f);
+}
+
+static
+void msf_from_bcd (struct atapi_msf *msf)
+{
+ msf->minute = bcd2bin (msf->minute);
+ msf->second = bcd2bin (msf->second);
+ msf->frame = bcd2bin (msf->frame);
+}
+
+#endif /* not STANDARD_ATAPI */
+
+
+static inline
+void lba_to_msf (int lba, byte *m, byte *s, byte *f)
+{
+ lba += CD_MSF_OFFSET;
+ lba &= 0xffffff; /* negative lbas use only 24 bits */
+ *m = lba / (CD_SECS * CD_FRAMES);
+ lba %= (CD_SECS * CD_FRAMES);
+ *s = lba / CD_FRAMES;
+ *f = lba % CD_FRAMES;
+}
+
+
+static inline
+int msf_to_lba (byte m, byte s, byte f)
+{
+ return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
+}
+
+static int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
+{
+ struct packet_command pc;
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *cdi = &info->devinfo;
+
+ memset(&pc, 0, sizeof(pc));
+ pc.sense = sense;
+
+ pc.c[0] = GPCMD_TEST_UNIT_READY;
+
+#if ! STANDARD_ATAPI
+ /* the Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to
+ switch CDs instead of supporting the LOAD_UNLOAD opcode */
+
+ pc.c[7] = cdi->sanyo_slot % 3;
+#endif /* not STANDARD_ATAPI */
+
+ return cdrom_queue_packet_command(drive, &pc);
+}
+
+
+/* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */
+static int
+cdrom_lockdoor(ide_drive_t *drive, int lockflag, struct request_sense *sense)
+{
+ struct request_sense my_sense;
+ struct packet_command pc;
+ int stat;
+
+ if (sense == NULL)
+ sense = &my_sense;
+
+ /* If the drive cannot lock the door, just pretend. */
+ if (CDROM_CONFIG_FLAGS(drive)->no_doorlock) {
+ stat = 0;
+ } else {
+ memset(&pc, 0, sizeof(pc));
+ pc.sense = sense;
+ pc.c[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
+ pc.c[4] = lockflag ? 1 : 0;
+ stat = cdrom_queue_packet_command (drive, &pc);
+ }
+
+ /* If we got an illegal field error, the drive
+ probably cannot lock the door. */
+ if (stat != 0 &&
+ sense->sense_key == ILLEGAL_REQUEST &&
+ (sense->asc == 0x24 || sense->asc == 0x20)) {
+ printk ("%s: door locking not supported\n",
+ drive->name);
+ CDROM_CONFIG_FLAGS (drive)->no_doorlock = 1;
+ stat = 0;
+ }
+
+ /* no medium, that's alright. */
+ if (stat != 0 && sense->sense_key == NOT_READY && sense->asc == 0x3a)
+ stat = 0;
+
+ if (stat == 0)
+ CDROM_STATE_FLAGS (drive)->door_locked = lockflag;
+
+ return stat;
+}
+
+
+/* Eject the disk if EJECTFLAG is 0.
+ If EJECTFLAG is 1, try to reload the disk. */
+static int cdrom_eject(ide_drive_t *drive, int ejectflag,
+ struct request_sense *sense)
+{
+ struct packet_command pc;
+
+ if (CDROM_CONFIG_FLAGS(drive)->no_eject && !ejectflag)
+ return -EDRIVE_CANT_DO_THIS;
+
+ /* reload fails on some drives, if the tray is locked */
+ if (CDROM_STATE_FLAGS(drive)->door_locked && ejectflag)
+ return 0;
+
+ memset(&pc, 0, sizeof (pc));
+ pc.sense = sense;
+
+ pc.c[0] = GPCMD_START_STOP_UNIT;
+ pc.c[4] = 0x02 + (ejectflag != 0);
+ return cdrom_queue_packet_command (drive, &pc);
+}
+
+static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
+ struct request_sense *sense)
+{
+ struct {
+ __u32 lba;
+ __u32 blocklen;
+ } capbuf;
+
+ int stat;
+ struct packet_command pc;
+
+ memset(&pc, 0, sizeof(pc));
+ pc.sense = sense;
+
+ pc.c[0] = GPCMD_READ_CDVD_CAPACITY;
+ pc.buffer = (char *)&capbuf;
+ pc.buflen = sizeof(capbuf);
+
+ stat = cdrom_queue_packet_command(drive, &pc);
+ if (stat == 0)
+ *capacity = 1 + be32_to_cpu(capbuf.lba);
+
+ return stat;
+}
+
+static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
+ int format, char *buf, int buflen,
+ struct request_sense *sense)
+{
+ struct packet_command pc;
+
+ memset(&pc, 0, sizeof(pc));
+ pc.sense = sense;
+
+ pc.buffer = buf;
+ pc.buflen = buflen;
+ pc.quiet = 1;
+ pc.c[0] = GPCMD_READ_TOC_PMA_ATIP;
+ pc.c[6] = trackno;
+ pc.c[7] = (buflen >> 8);
+ pc.c[8] = (buflen & 0xff);
+ pc.c[9] = (format << 6);
+
+ if (msf_flag)
+ pc.c[1] = 2;
+
+ return cdrom_queue_packet_command (drive, &pc);
+}
+
+
+/* Try to read the entire TOC for the disk into our internal buffer. */
+static int cdrom_read_toc(ide_drive_t *drive, struct request_sense *sense)
+{
+ int minor, stat, ntracks, i;
+ kdev_t dev;
+ struct cdrom_info *info = drive->driver_data;
+ struct atapi_toc *toc = info->toc;
+ struct {
+ struct atapi_toc_header hdr;
+ struct atapi_toc_entry ent;
+ } ms_tmp;
+
+ if (toc == NULL) {
+ /* Try to allocate space. */
+ toc = (struct atapi_toc *) kmalloc (sizeof (struct atapi_toc),
+ GFP_KERNEL);
+ info->toc = toc;
+ if (toc == NULL) {
+ printk ("%s: No cdrom TOC buffer!\n", drive->name);
+ return -ENOMEM;
+ }
+ }
+
+ /* Check to see if the existing data is still valid.
+ If it is, just return. */
+ (void) cdrom_check_status(drive, sense);
+
+ if (CDROM_STATE_FLAGS(drive)->toc_valid)
+ return 0;
+
+ /* First read just the header, so we know how long the TOC is. */
+ stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
+ sizeof(struct atapi_toc_header), sense);
+ if (stat) return stat;
+
+#if ! STANDARD_ATAPI
+ if (CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd) {
+ toc->hdr.first_track = bcd2bin (toc->hdr.first_track);
+ toc->hdr.last_track = bcd2bin (toc->hdr.last_track);
+ }
+#endif /* not STANDARD_ATAPI */
+
+ ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
+ if (ntracks <= 0)
+ return -EIO;
+ if (ntracks > MAX_TRACKS)
+ ntracks = MAX_TRACKS;
+
+ /* Now read the whole schmeer. */
+ stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,
+ (char *)&toc->hdr,
+ sizeof(struct atapi_toc_header) +
+ (ntracks + 1) *
+ sizeof(struct atapi_toc_entry), sense);
+
+ if (stat && toc->hdr.first_track > 1) {
+ /* Cds with CDI tracks only don't have any TOC entries,
+ despite of this the returned values are
+ first_track == last_track = number of CDI tracks + 1,
+ so that this case is indistinguishable from the same
+ layout plus an additional audio track.
+ If we get an error for the regular case, we assume
+ a CDI without additional audio tracks. In this case
+ the readable TOC is empty (CDI tracks are not included)
+ and only holds the Leadout entry. Heiko Eißfeldt */
+ ntracks = 0;
+ stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0,
+ (char *)&toc->hdr,
+ sizeof(struct atapi_toc_header) +
+ (ntracks + 1) *
+ sizeof(struct atapi_toc_entry),
+ sense);
+ if (stat) {
+ return stat;
+ }
+#if ! STANDARD_ATAPI
+ if (CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd) {
+ toc->hdr.first_track = bin2bcd(CDROM_LEADOUT);
+ toc->hdr.last_track = bin2bcd(CDROM_LEADOUT);
+ } else
+#endif /* not STANDARD_ATAPI */
+ {
+ toc->hdr.first_track = CDROM_LEADOUT;
+ toc->hdr.last_track = CDROM_LEADOUT;
+ }
+ }
+
+ if (stat)
+ return stat;
+
+ toc->hdr.toc_length = ntohs (toc->hdr.toc_length);
+
+#if ! STANDARD_ATAPI
+ if (CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd) {
+ toc->hdr.first_track = bcd2bin (toc->hdr.first_track);
+ toc->hdr.last_track = bcd2bin (toc->hdr.last_track);
+ }
+#endif /* not STANDARD_ATAPI */
+
+ for (i=0; i<=ntracks; i++) {
+#if ! STANDARD_ATAPI
+ if (CDROM_CONFIG_FLAGS (drive)->tocaddr_as_bcd) {
+ if (CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd)
+ toc->ent[i].track = bcd2bin (toc->ent[i].track);
+ msf_from_bcd (&toc->ent[i].addr.msf);
+ }
+#endif /* not STANDARD_ATAPI */
+ toc->ent[i].addr.lba = msf_to_lba (toc->ent[i].addr.msf.minute,
+ toc->ent[i].addr.msf.second,
+ toc->ent[i].addr.msf.frame);
+ }
+
+ /* Read the multisession information. */
+ if (toc->hdr.first_track != CDROM_LEADOUT) {
+ /* Read the multisession information. */
+ stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp,
+ sizeof(ms_tmp), sense);
+ if (stat) return stat;
+ } else {
+ ms_tmp.ent.addr.msf.minute = 0;
+ ms_tmp.ent.addr.msf.second = 2;
+ ms_tmp.ent.addr.msf.frame = 0;
+ ms_tmp.hdr.first_track = ms_tmp.hdr.last_track = CDROM_LEADOUT;
+ }
+
+#if ! STANDARD_ATAPI
+ if (CDROM_CONFIG_FLAGS (drive)->tocaddr_as_bcd)
+ msf_from_bcd (&ms_tmp.ent.addr.msf);
+#endif /* not STANDARD_ATAPI */
+
+ toc->last_session_lba = msf_to_lba (ms_tmp.ent.addr.msf.minute,
+ ms_tmp.ent.addr.msf.second,
+ ms_tmp.ent.addr.msf.frame);
+
+ toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);
+
+ /* Now try to get the total cdrom capacity. */
+ minor = (drive->select.b.unit) << PARTN_BITS;
+ dev = MKDEV(HWIF(drive)->major, minor);
+ stat = cdrom_get_last_written(dev, &toc->capacity);
+ if (stat)
+ stat = cdrom_read_capacity(drive, &toc->capacity, sense);
+ if (stat)
+ toc->capacity = 0x1fffff;
+
+ HWIF(drive)->gd->sizes[drive->select.b.unit << PARTN_BITS] = (toc->capacity * SECTORS_PER_FRAME) >> (BLOCK_SIZE_BITS - 9);
+ drive->part[0].nr_sects = toc->capacity * SECTORS_PER_FRAME;
+
+ /* Remember that we've read this stuff. */
+ CDROM_STATE_FLAGS (drive)->toc_valid = 1;
+
+ return 0;
+}
+
+
+static int cdrom_read_subchannel(ide_drive_t *drive, int format, char *buf,
+ int buflen, struct request_sense *sense)
+{
+ struct packet_command pc;
+
+ memset(&pc, 0, sizeof(pc));
+ pc.sense = sense;
+
+ pc.buffer = buf;
+ pc.buflen = buflen;
+ pc.c[0] = GPCMD_READ_SUBCHANNEL;
+ pc.c[1] = 2; /* MSF addressing */
+ pc.c[2] = 0x40; /* request subQ data */
+ pc.c[3] = format;
+ pc.c[7] = (buflen >> 8);
+ pc.c[8] = (buflen & 0xff);
+ return cdrom_queue_packet_command(drive, &pc);
+}
+
+/* ATAPI cdrom drives are free to select the speed you request or any slower
+ rate :-( Requesting too fast a speed will _not_ produce an error. */
+static int cdrom_select_speed(ide_drive_t *drive, int speed,
+ struct request_sense *sense)
+{
+ struct packet_command pc;
+ memset(&pc, 0, sizeof(pc));
+ pc.sense = sense;
+
+ if (speed == 0)
+ speed = 0xffff; /* set to max */
+ else
+ speed *= 177; /* Nx to kbytes/s */
+
+ pc.c[0] = GPCMD_SET_SPEED;
+ /* Read Drive speed in kbytes/second MSB */
+ pc.c[2] = (speed >> 8) & 0xff;
+ /* Read Drive speed in kbytes/second LSB */
+ pc.c[3] = speed & 0xff;
+ if (CDROM_CONFIG_FLAGS(drive)->cd_r ||
+ CDROM_CONFIG_FLAGS(drive)->cd_rw ||
+ CDROM_CONFIG_FLAGS(drive)->dvd_r) {
+ /* Write Drive speed in kbytes/second MSB */
+ pc.c[4] = (speed >> 8) & 0xff;
+ /* Write Drive speed in kbytes/second LSB */
+ pc.c[5] = speed & 0xff;
+ }
+
+ return cdrom_queue_packet_command(drive, &pc);
+}
+
+static int cdrom_play_audio(ide_drive_t *drive, int lba_start, int lba_end)
+{
+ struct request_sense sense;
+ struct packet_command pc;
+
+ memset(&pc, 0, sizeof (pc));
+ pc.sense = &sense;
+
+ pc.c[0] = GPCMD_PLAY_AUDIO_MSF;
+ lba_to_msf(lba_start, &pc.c[3], &pc.c[4], &pc.c[5]);
+ lba_to_msf(lba_end-1, &pc.c[6], &pc.c[7], &pc.c[8]);
+
+ return cdrom_queue_packet_command(drive, &pc);
+}
+
+static int cdrom_get_toc_entry(ide_drive_t *drive, int track,
+ struct atapi_toc_entry **ent)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct atapi_toc *toc = info->toc;
+ int ntracks;
+
+ /*
+ * don't serve cached data, if the toc isn't valid
+ */
+ if (!CDROM_STATE_FLAGS(drive)->toc_valid)
+ return -EINVAL;
+
+ /* Check validity of requested track number. */
+ ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
+ if (toc->hdr.first_track == CDROM_LEADOUT) ntracks = 0;
+ if (track == CDROM_LEADOUT)
+ *ent = &toc->ent[ntracks];
+ else if (track < toc->hdr.first_track ||
+ track > toc->hdr.last_track)
+ return -EINVAL;
+ else
+ *ent = &toc->ent[track - toc->hdr.first_track];
+
+ return 0;
+}
+
+/* the generic packet interface to cdrom.c */
+static int ide_cdrom_packet(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc)
+{
+ struct packet_command pc;
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+
+ if (cgc->timeout <= 0)
+ cgc->timeout = WAIT_CMD;
+
+ /* here we queue the commands from the uniform CD-ROM
+ layer. the packet must be complete, as we do not
+ touch it at all. */
+ memset(&pc, 0, sizeof(pc));
+ memcpy(pc.c, cgc->cmd, CDROM_PACKET_SIZE);
+ pc.buffer = cgc->buffer;
+ pc.buflen = cgc->buflen;
+ pc.quiet = cgc->quiet;
+ pc.timeout = cgc->timeout;
+ pc.sense = cgc->sense;
+ return cgc->stat = cdrom_queue_packet_command(drive, &pc);
+}
+
+static
+int ide_cdrom_dev_ioctl (struct cdrom_device_info *cdi,
+ unsigned int cmd, unsigned long arg)
+{
+ struct cdrom_generic_command cgc;
+ char buffer[16];
+ int stat;
+
+ init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
+
+ /* These will be moved into the Uniform layer shortly... */
+ switch (cmd) {
+ case CDROMSETSPINDOWN: {
+ char spindown;
+
+ if (copy_from_user(&spindown, (void *) arg, sizeof(char)))
+ return -EFAULT;
+
+ if ((stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0)))
+ return stat;
+
+ buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
+
+ return cdrom_mode_select(cdi, &cgc);
+ }
+
+ case CDROMGETSPINDOWN: {
+ char spindown;
+
+ if ((stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0)))
+ return stat;
+
+ spindown = buffer[11] & 0x0f;
+
+ if (copy_to_user((void *) arg, &spindown, sizeof (char)))
+ return -EFAULT;
+
+ return 0;
+ }
+
+ default:
+ return -EINVAL;
+ }
+
+}
+
+static
+int ide_cdrom_audio_ioctl (struct cdrom_device_info *cdi,
+ unsigned int cmd, void *arg)
+
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ struct cdrom_info *info = drive->driver_data;
+ int stat;
+
+ switch (cmd) {
+ /*
+ * emulate PLAY_AUDIO_TI command with PLAY_AUDIO_10, since
+ * atapi doesn't support it
+ */
+ case CDROMPLAYTRKIND: {
+ unsigned long lba_start, lba_end;
+ struct cdrom_ti *ti = (struct cdrom_ti *)arg;
+ struct atapi_toc_entry *first_toc, *last_toc;
+
+ stat = cdrom_get_toc_entry(drive, ti->cdti_trk0, &first_toc);
+ if (stat)
+ return stat;
+
+ stat = cdrom_get_toc_entry(drive, ti->cdti_trk1, &last_toc);
+ if (stat)
+ return stat;
+
+ if (ti->cdti_trk1 != CDROM_LEADOUT)
+ ++last_toc;
+ lba_start = first_toc->addr.lba;
+ lba_end = last_toc->addr.lba;
+
+ if (lba_end <= lba_start)
+ return -EINVAL;
+
+ return cdrom_play_audio(drive, lba_start, lba_end);
+ }
+
+ case CDROMREADTOCHDR: {
+ struct cdrom_tochdr *tochdr = (struct cdrom_tochdr *) arg;
+ struct atapi_toc *toc;
+
+ /* Make sure our saved TOC is valid. */
+ stat = cdrom_read_toc(drive, NULL);
+ if (stat) return stat;
+
+ toc = info->toc;
+ tochdr->cdth_trk0 = toc->hdr.first_track;
+ tochdr->cdth_trk1 = toc->hdr.last_track;
+
+ return 0;
+ }
+
+ case CDROMREADTOCENTRY: {
+ struct cdrom_tocentry *tocentry = (struct cdrom_tocentry*) arg;
+ struct atapi_toc_entry *toce;
+
+ stat = cdrom_get_toc_entry (drive, tocentry->cdte_track, &toce);
+ if (stat) return stat;
+
+ tocentry->cdte_ctrl = toce->control;
+ tocentry->cdte_adr = toce->adr;
+ if (tocentry->cdte_format == CDROM_MSF) {
+ lba_to_msf (toce->addr.lba,
+ &tocentry->cdte_addr.msf.minute,
+ &tocentry->cdte_addr.msf.second,
+ &tocentry->cdte_addr.msf.frame);
+ } else
+ tocentry->cdte_addr.lba = toce->addr.lba;
+
+ return 0;
+ }
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static
+int ide_cdrom_reset (struct cdrom_device_info *cdi)
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ struct request_sense sense;
+ struct request req;
+ int ret;
+
+ ide_init_drive_cmd (&req);
+ req.cmd = RESET_DRIVE_COMMAND;
+ ret = ide_do_drive_cmd(drive, &req, ide_wait);
+
+ /*
+ * A reset will unlock the door. If it was previously locked,
+ * lock it again.
+ */
+ if (CDROM_STATE_FLAGS(drive)->door_locked)
+ (void) cdrom_lockdoor(drive, 1, &sense);
+
+ return ret;
+}
+
+
+static
+int ide_cdrom_tray_move (struct cdrom_device_info *cdi, int position)
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ struct request_sense sense;
+
+ if (position) {
+ int stat = cdrom_lockdoor(drive, 0, &sense);
+ if (stat) return stat;
+ }
+
+ return cdrom_eject(drive, !position, &sense);
+}
+
+static
+int ide_cdrom_lock_door (struct cdrom_device_info *cdi, int lock)
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ return cdrom_lockdoor(drive, lock, NULL);
+}
+
+static
+int ide_cdrom_select_speed (struct cdrom_device_info *cdi, int speed)
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ struct request_sense sense;
+ int stat;
+
+ if ((stat = cdrom_select_speed (drive, speed, &sense)) < 0)
+ return stat;
+
+ cdi->speed = CDROM_STATE_FLAGS (drive)->current_speed;
+ return 0;
+}
+
+static
+int ide_cdrom_drive_status (struct cdrom_device_info *cdi, int slot_nr)
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+
+ if (slot_nr == CDSL_CURRENT) {
+ struct request_sense sense;
+ int stat = cdrom_check_status(drive, &sense);
+ if (stat == 0 || sense.sense_key == UNIT_ATTENTION)
+ return CDS_DISC_OK;
+
+ if (sense.sense_key == NOT_READY && sense.asc == 0x04 &&
+ sense.ascq == 0x04)
+ return CDS_DISC_OK;
+
+
+ /*
+ * If not using Mt Fuji extended media tray reports,
+ * just return TRAY_OPEN since ATAPI doesn't provide
+ * any other way to detect this...
+ */
+ if (sense.sense_key == NOT_READY) {
+ if (sense.asc == 0x3a && sense.ascq == 1)
+ return CDS_NO_DISC;
+ else
+ return CDS_TRAY_OPEN;
+ }
+
+ return CDS_DRIVE_NOT_READY;
+ }
+ return -EINVAL;
+}
+
+static
+int ide_cdrom_get_last_session (struct cdrom_device_info *cdi,
+ struct cdrom_multisession *ms_info)
+{
+ struct atapi_toc *toc;
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ struct cdrom_info *info = drive->driver_data;
+ struct request_sense sense;
+ int ret;
+
+ if (!CDROM_STATE_FLAGS(drive)->toc_valid || info->toc == NULL)
+ if ((ret = cdrom_read_toc(drive, &sense)))
+ return ret;
+
+ toc = info->toc;
+ ms_info->addr.lba = toc->last_session_lba;
+ ms_info->xa_flag = toc->xa_flag;
+
+ return 0;
+}
+
+static
+int ide_cdrom_get_mcn (struct cdrom_device_info *cdi,
+ struct cdrom_mcn *mcn_info)
+{
+ int stat;
+ char mcnbuf[24];
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+
+/* get MCN */
+ if ((stat = cdrom_read_subchannel(drive, 2, mcnbuf, sizeof (mcnbuf), NULL)))
+ return stat;
+
+ memcpy (mcn_info->medium_catalog_number, mcnbuf+9,
+ sizeof (mcn_info->medium_catalog_number)-1);
+ mcn_info->medium_catalog_number[sizeof (mcn_info->medium_catalog_number)-1]
+ = '\0';
+
+ return 0;
+}
+
+
+
+/****************************************************************************
+ * Other driver requests (open, close, check media change).
+ */
+
+static
+int ide_cdrom_check_media_change_real (struct cdrom_device_info *cdi,
+ int slot_nr)
+{
+ ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ int retval;
+
+ if (slot_nr == CDSL_CURRENT) {
+ (void) cdrom_check_status(drive, NULL);
+ retval = CDROM_STATE_FLAGS (drive)->media_changed;
+ CDROM_STATE_FLAGS (drive)->media_changed = 0;
+ return retval;
+ } else {
+ return -EINVAL;
+ }
+}
+
+
+static
+int ide_cdrom_open_real (struct cdrom_device_info *cdi, int purpose)
+{
+ return 0;
+}
+
+
+/*
+ * Close down the device. Invalidate all cached blocks.
+ */
+
+static
+void ide_cdrom_release_real (struct cdrom_device_info *cdi)
+{
+}
+
+
+
+/****************************************************************************
+ * Device initialization.
+ */
+static struct cdrom_device_ops ide_cdrom_dops = {
+ open: ide_cdrom_open_real,
+ release: ide_cdrom_release_real,
+ drive_status: ide_cdrom_drive_status,
+ media_changed: ide_cdrom_check_media_change_real,
+ tray_move: ide_cdrom_tray_move,
+ lock_door: ide_cdrom_lock_door,
+ select_speed: ide_cdrom_select_speed,
+ get_last_session: ide_cdrom_get_last_session,
+ get_mcn: ide_cdrom_get_mcn,
+ reset: ide_cdrom_reset,
+ audio_ioctl: ide_cdrom_audio_ioctl,
+ dev_ioctl: ide_cdrom_dev_ioctl,
+ capability: CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK |
+ CDC_SELECT_SPEED | CDC_SELECT_DISC |
+ CDC_MULTI_SESSION | CDC_MCN |
+ CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | CDC_RESET |
+ CDC_IOCTLS | CDC_DRIVE_STATUS | CDC_CD_R |
+ CDC_CD_RW | CDC_DVD | CDC_DVD_R| CDC_DVD_RAM |
+ CDC_GENERIC_PACKET,
+ generic_packet: ide_cdrom_packet,
+};
+
+static int ide_cdrom_register (ide_drive_t *drive, int nslots)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *devinfo = &info->devinfo;
+ int minor = (drive->select.b.unit) << PARTN_BITS;
+
+ devinfo->dev = MKDEV (HWIF(drive)->major, minor);
+ devinfo->ops = &ide_cdrom_dops;
+ devinfo->mask = 0;
+ *(int *)&devinfo->speed = CDROM_STATE_FLAGS (drive)->current_speed;
+ *(int *)&devinfo->capacity = nslots;
+ devinfo->handle = (void *) drive;
+ strcpy(devinfo->name, drive->name);
+
+ /* set capability mask to match the probe. */
+ if (!CDROM_CONFIG_FLAGS (drive)->cd_r)
+ devinfo->mask |= CDC_CD_R;
+ if (!CDROM_CONFIG_FLAGS (drive)->cd_rw)
+ devinfo->mask |= CDC_CD_RW;
+ if (!CDROM_CONFIG_FLAGS (drive)->dvd)
+ devinfo->mask |= CDC_DVD;
+ if (!CDROM_CONFIG_FLAGS (drive)->dvd_r)
+ devinfo->mask |= CDC_DVD_R;
+ if (!CDROM_CONFIG_FLAGS (drive)->dvd_ram)
+ devinfo->mask |= CDC_DVD_RAM;
+ if (!CDROM_CONFIG_FLAGS (drive)->is_changer)
+ devinfo->mask |= CDC_SELECT_DISC;
+ if (!CDROM_CONFIG_FLAGS (drive)->audio_play)
+ devinfo->mask |= CDC_PLAY_AUDIO;
+ if (!CDROM_CONFIG_FLAGS (drive)->close_tray)
+ devinfo->mask |= CDC_CLOSE_TRAY;
+
+#if 0
+ devinfo->de = devfs_register(drive->de, "cd", DEVFS_FL_DEFAULT,
+ HWIF(drive)->major, minor,
+ S_IFBLK | S_IRUGO | S_IWUGO,
+ ide_fops, NULL);
+#endif
+
+ return register_cdrom(devinfo);
+}
+
+static
+int ide_cdrom_get_capabilities(ide_drive_t *drive, struct atapi_capabilities_page *cap)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *cdi = &info->devinfo;
+ struct cdrom_generic_command cgc;
+ int stat, attempts = 3, size = sizeof(*cap);
+
+ /*
+ * ACER50 (and others?) require the full spec length mode sense
+ * page capabilities size, but older drives break.
+ */
+ if (drive->id) {
+ if (!(!strcmp(drive->id->model, "ATAPI CD ROM DRIVE 50X MAX") ||
+ !strcmp(drive->id->model, "WPI CDS-32X")))
+ size -= sizeof(cap->pad);
+ }
+
+ /* we have to cheat a little here. the packet will eventually
+ * be queued with ide_cdrom_packet(), which extracts the
+ * drive from cdi->handle. Since this device hasn't been
+ * registered with the Uniform layer yet, it can't do this.
+ * Same goes for cdi->ops.
+ */
+ cdi->handle = (ide_drive_t *) drive;
+ cdi->ops = &ide_cdrom_dops;
+ init_cdrom_command(&cgc, cap, size, CGC_DATA_UNKNOWN);
+ do { /* we seem to get stat=0x01,err=0x00 the first time (??) */
+ stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
+ if (!stat)
+ break;
+ } while (--attempts);
+ return stat;
+}
+
+static
+int ide_cdrom_probe_capabilities (ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *cdi = &info->devinfo;
+ struct atapi_capabilities_page cap;
+ int nslots = 1;
+
+ if (CDROM_CONFIG_FLAGS (drive)->nec260) {
+ CDROM_CONFIG_FLAGS (drive)->no_eject = 0;
+ CDROM_CONFIG_FLAGS (drive)->audio_play = 1;
+ return nslots;
+ }
+
+ if (ide_cdrom_get_capabilities(drive, &cap))
+ return 0;
+
+ if (cap.lock == 0)
+ CDROM_CONFIG_FLAGS (drive)->no_doorlock = 1;
+ if (cap.eject)
+ CDROM_CONFIG_FLAGS (drive)->no_eject = 0;
+ if (cap.cd_r_write)
+ CDROM_CONFIG_FLAGS (drive)->cd_r = 1;
+ if (cap.cd_rw_write)
+ CDROM_CONFIG_FLAGS (drive)->cd_rw = 1;
+ if (cap.test_write)
+ CDROM_CONFIG_FLAGS (drive)->test_write = 1;
+ if (cap.dvd_ram_read || cap.dvd_r_read || cap.dvd_rom)
+ CDROM_CONFIG_FLAGS (drive)->dvd = 1;
+ if (cap.dvd_ram_write)
+ CDROM_CONFIG_FLAGS (drive)->dvd_ram = 1;
+ if (cap.dvd_r_write)
+ CDROM_CONFIG_FLAGS (drive)->dvd_r = 1;
+ if (cap.audio_play)
+ CDROM_CONFIG_FLAGS (drive)->audio_play = 1;
+ if (cap.mechtype == mechtype_caddy || cap.mechtype == mechtype_popup)
+ CDROM_CONFIG_FLAGS (drive)->close_tray = 0;
+
+#if ! STANDARD_ATAPI
+ if (cdi->sanyo_slot > 0) {
+ CDROM_CONFIG_FLAGS (drive)->is_changer = 1;
+ nslots = 3;
+ }
+
+ else
+#endif /* not STANDARD_ATAPI */
+ if (cap.mechtype == mechtype_individual_changer ||
+ cap.mechtype == mechtype_cartridge_changer) {
+ if ((nslots = cdrom_number_of_slots(cdi)) > 1) {
+ CDROM_CONFIG_FLAGS (drive)->is_changer = 1;
+ CDROM_CONFIG_FLAGS (drive)->supp_disc_present = 1;
+ }
+ }
+
+ /* The ACER/AOpen 24X cdrom has the speed fields byte-swapped */
+ if (drive->id && !drive->id->model[0] && !strncmp(drive->id->fw_rev, "241N", 4)) {
+ CDROM_STATE_FLAGS (drive)->current_speed =
+ (((unsigned int)cap.curspeed) + (176/2)) / 176;
+ CDROM_CONFIG_FLAGS (drive)->max_speed =
+ (((unsigned int)cap.maxspeed) + (176/2)) / 176;
+ } else {
+ CDROM_STATE_FLAGS (drive)->current_speed =
+ (ntohs(cap.curspeed) + (176/2)) / 176;
+ CDROM_CONFIG_FLAGS (drive)->max_speed =
+ (ntohs(cap.maxspeed) + (176/2)) / 176;
+ }
+
+ /* don't print speed if the drive reported 0.
+ */
+ printk("%s: ATAPI", drive->name);
+ if (CDROM_CONFIG_FLAGS(drive)->max_speed)
+ printk(" %dX", CDROM_CONFIG_FLAGS(drive)->max_speed);
+ printk(" %s", CDROM_CONFIG_FLAGS(drive)->dvd ? "DVD-ROM" : "CD-ROM");
+
+ if (CDROM_CONFIG_FLAGS (drive)->dvd_r|CDROM_CONFIG_FLAGS (drive)->dvd_ram)
+ printk (" DVD%s%s",
+ (CDROM_CONFIG_FLAGS (drive)->dvd_r)? "-R" : "",
+ (CDROM_CONFIG_FLAGS (drive)->dvd_ram)? "-RAM" : "");
+
+ if (CDROM_CONFIG_FLAGS (drive)->cd_r|CDROM_CONFIG_FLAGS (drive)->cd_rw)
+ printk (" CD%s%s",
+ (CDROM_CONFIG_FLAGS (drive)->cd_r)? "-R" : "",
+ (CDROM_CONFIG_FLAGS (drive)->cd_rw)? "/RW" : "");
+
+ if (CDROM_CONFIG_FLAGS (drive)->is_changer)
+ printk (" changer w/%d slots", nslots);
+ else
+ printk (" drive");
+
+ printk (", %dkB Cache", be16_to_cpu(cap.buffer_size));
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+ if (drive->using_dma)
+ (void) HWIF(drive)->dmaproc(ide_dma_verbose, drive);
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+ printk("\n");
+
+ return nslots;
+}
+
+static void ide_cdrom_add_settings(ide_drive_t *drive)
+{
+#if 0
+ int major = HWIF(drive)->major;
+ int minor = drive->select.b.unit << PARTN_BITS;
+
+ ide_add_setting(drive, "breada_readahead", SETTING_RW, BLKRAGET, BLKRASET, TYPE_INT, 0, 255, 1, 2, &read_ahead[major], NULL);
+ ide_add_setting(drive, "file_readahead", SETTING_RW, BLKFRAGET, BLKFRASET, TYPE_INTA, 0, INT_MAX, 1, 1024, &max_readahead[major][minor], NULL);
+ ide_add_setting(drive, "max_kb_per_request", SETTING_RW, BLKSECTGET, BLKSECTSET, TYPE_INTA, 1, 255, 1, 2, &max_sectors[major][minor], NULL);
+#endif
+ ide_add_setting(drive, "dsc_overlap", SETTING_RW, -1, -1, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL);
+}
+
+static
+int ide_cdrom_setup (ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *cdi = &info->devinfo;
+ int minor = drive->select.b.unit << PARTN_BITS;
+ int nslots;
+
+ /*
+ * default to read-only always and fix latter at the bottom
+ */
+ set_device_ro(MKDEV(HWIF(drive)->major, minor), 1);
+#if 0
+ set_blocksize(MKDEV(HWIF(drive)->major, minor), CD_FRAMESIZE);
+#endif
+
+ drive->special.all = 0;
+ drive->ready_stat = 0;
+
+ CDROM_STATE_FLAGS (drive)->media_changed = 1;
+ CDROM_STATE_FLAGS (drive)->toc_valid = 0;
+ CDROM_STATE_FLAGS (drive)->door_locked = 0;
+
+#if NO_DOOR_LOCKING
+ CDROM_CONFIG_FLAGS (drive)->no_doorlock = 1;
+#else
+ CDROM_CONFIG_FLAGS (drive)->no_doorlock = 0;
+#endif
+
+ if (drive->id != NULL)
+ CDROM_CONFIG_FLAGS (drive)->drq_interrupt =
+ ((drive->id->config & 0x0060) == 0x20);
+ else
+ CDROM_CONFIG_FLAGS (drive)->drq_interrupt = 0;
+
+ CDROM_CONFIG_FLAGS (drive)->is_changer = 0;
+ CDROM_CONFIG_FLAGS (drive)->cd_r = 0;
+ CDROM_CONFIG_FLAGS (drive)->cd_rw = 0;
+ CDROM_CONFIG_FLAGS (drive)->test_write = 0;
+ CDROM_CONFIG_FLAGS (drive)->dvd = 0;
+ CDROM_CONFIG_FLAGS (drive)->dvd_r = 0;
+ CDROM_CONFIG_FLAGS (drive)->dvd_ram = 0;
+ CDROM_CONFIG_FLAGS (drive)->no_eject = 1;
+ CDROM_CONFIG_FLAGS (drive)->supp_disc_present = 0;
+ CDROM_CONFIG_FLAGS (drive)->audio_play = 0;
+ CDROM_CONFIG_FLAGS (drive)->close_tray = 1;
+
+ /* limit transfer size per interrupt. */
+ CDROM_CONFIG_FLAGS (drive)->limit_nframes = 0;
+ if (drive->id != NULL) {
+ /* a testament to the nice quality of Samsung drives... */
+ if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-2430"))
+ CDROM_CONFIG_FLAGS (drive)->limit_nframes = 1;
+ else if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-2432"))
+ CDROM_CONFIG_FLAGS (drive)->limit_nframes = 1;
+ /* the 3231 model does not support the SET_CD_SPEED command */
+ else if (!strcmp(drive->id->model, "SAMSUNG CD-ROM SCR-3231"))
+ cdi->mask |= CDC_SELECT_SPEED;
+ }
+
+#if ! STANDARD_ATAPI
+ /* by default Sanyo 3 CD changer support is turned off and
+ ATAPI Rev 2.2+ standard support for CD changers is used */
+ cdi->sanyo_slot = 0;
+
+ CDROM_CONFIG_FLAGS (drive)->nec260 = 0;
+ CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd = 0;
+ CDROM_CONFIG_FLAGS (drive)->tocaddr_as_bcd = 0;
+ CDROM_CONFIG_FLAGS (drive)->playmsf_as_bcd = 0;
+ CDROM_CONFIG_FLAGS (drive)->subchan_as_bcd = 0;
+
+ if (drive->id != NULL) {
+ if (strcmp (drive->id->model, "V003S0DS") == 0 &&
+ drive->id->fw_rev[4] == '1' &&
+ drive->id->fw_rev[6] <= '2') {
+ /* Vertos 300.
+ Some versions of this drive like to talk BCD. */
+ CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->tocaddr_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->playmsf_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->subchan_as_bcd = 1;
+ }
+
+ else if (strcmp (drive->id->model, "V006E0DS") == 0 &&
+ drive->id->fw_rev[4] == '1' &&
+ drive->id->fw_rev[6] <= '2') {
+ /* Vertos 600 ESD. */
+ CDROM_CONFIG_FLAGS (drive)->toctracks_as_bcd = 1;
+ }
+
+ else if (strcmp (drive->id->model,
+ "NEC CD-ROM DRIVE:260") == 0 &&
+ strncmp (drive->id->fw_rev, "1.01", 4) == 0) { /* FIXME */
+ /* Old NEC260 (not R).
+ This drive was released before the 1.2 version
+ of the spec. */
+ CDROM_CONFIG_FLAGS (drive)->tocaddr_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->playmsf_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->subchan_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->nec260 = 1;
+ }
+
+ else if (strcmp (drive->id->model, "WEARNES CDD-120") == 0 &&
+ strncmp (drive->id->fw_rev, "A1.1", 4) == 0) { /* FIXME */
+ /* Wearnes */
+ CDROM_CONFIG_FLAGS (drive)->playmsf_as_bcd = 1;
+ CDROM_CONFIG_FLAGS (drive)->subchan_as_bcd = 1;
+ }
+
+ /* Sanyo 3 CD changer uses a non-standard command
+ for CD changing */
+ else if ((strcmp(drive->id->model, "CD-ROM CDR-C3 G") == 0) ||
+ (strcmp(drive->id->model, "CD-ROM CDR-C3G") == 0) ||
+ (strcmp(drive->id->model, "CD-ROM CDR_C36") == 0)) {
+ /* uses CD in slot 0 when value is set to 3 */
+ cdi->sanyo_slot = 3;
+ }
+
+
+ }
+#endif /* not STANDARD_ATAPI */
+
+ info->toc = NULL;
+ info->buffer = NULL;
+ info->sector_buffered = 0;
+ info->nsectors_buffered = 0;
+ info->changer_info = NULL;
+ info->last_block = 0;
+ info->start_seek = 0;
+
+ nslots = ide_cdrom_probe_capabilities (drive);
+
+ if (CDROM_CONFIG_FLAGS(drive)->dvd_ram)
+ set_device_ro(MKDEV(HWIF(drive)->major, minor), 0);
+
+ if (ide_cdrom_register (drive, nslots)) {
+ printk ("%s: ide_cdrom_setup failed to register device with the cdrom driver.\n", drive->name);
+ info->devinfo.handle = NULL;
+ return 1;
+ }
+ ide_cdrom_add_settings(drive);
+ return 0;
+}
+
+/* Forwarding functions to generic routines. */
+static
+int ide_cdrom_ioctl (ide_drive_t *drive,
+ struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return cdrom_ioctl (inode, file, cmd, arg);
+}
+
+static
+int ide_cdrom_open (struct inode *ip, struct file *fp, ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ int rc = -ENOMEM;
+
+ MOD_INC_USE_COUNT;
+ if (info->buffer == NULL)
+ info->buffer = (char *) kmalloc(SECTOR_BUFFER_SIZE, GFP_KERNEL);
+ if ((info->buffer == NULL) || (rc = cdrom_open(ip, fp))) {
+ drive->usage--;
+ MOD_DEC_USE_COUNT;
+ }
+ return rc;
+}
+
+static
+void ide_cdrom_release (struct inode *inode, struct file *file,
+ ide_drive_t *drive)
+{
+ cdrom_release (inode, file);
+ MOD_DEC_USE_COUNT;
+}
+
+static
+int ide_cdrom_check_media_change (ide_drive_t *drive)
+{
+ return cdrom_media_changed(MKDEV (HWIF (drive)->major,
+ (drive->select.b.unit) << PARTN_BITS));
+}
+
+static
+void ide_cdrom_revalidate (ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct atapi_toc *toc;
+ int minor = drive->select.b.unit << PARTN_BITS;
+ struct request_sense sense;
+
+ cdrom_read_toc(drive, &sense);
+
+ if (!CDROM_STATE_FLAGS(drive)->toc_valid)
+ return;
+
+ toc = info->toc;
+
+ /* for general /dev/cdrom like mounting, one big disc */
+ drive->part[0].nr_sects = toc->capacity * SECTORS_PER_FRAME;
+ HWIF(drive)->gd->sizes[minor] = toc->capacity * BLOCKS_PER_FRAME;
+
+ /*
+ * reset block size, ide_revalidate_disk incorrectly sets it to
+ * 1024 even for CDROM's
+ */
+ blk_size[HWIF(drive)->major] = HWIF(drive)->gd->sizes;
+#if 0
+ set_blocksize(MKDEV(HWIF(drive)->major, minor), CD_FRAMESIZE);
+#endif
+}
+
+static
+unsigned long ide_cdrom_capacity (ide_drive_t *drive)
+{
+ unsigned long capacity;
+
+ if (cdrom_read_capacity(drive, &capacity, NULL))
+ return 0;
+
+ return capacity * SECTORS_PER_FRAME;
+}
+
+static
+int ide_cdrom_cleanup(ide_drive_t *drive)
+{
+ struct cdrom_info *info = drive->driver_data;
+ struct cdrom_device_info *devinfo = &info->devinfo;
+
+ if (ide_unregister_subdriver (drive))
+ return 1;
+ if (info->buffer != NULL)
+ kfree(info->buffer);
+ if (info->toc != NULL)
+ kfree(info->toc);
+ if (info->changer_info != NULL)
+ kfree(info->changer_info);
+ if (devinfo->handle == drive && unregister_cdrom (devinfo))
+ printk ("%s: ide_cdrom_cleanup failed to unregister device from the cdrom driver.\n", drive->name);
+ kfree(info);
+ drive->driver_data = NULL;
+ return 0;
+}
+
+static
+int ide_cdrom_reinit (ide_drive_t *drive)
+{
+ return 0;
+}
+
+static ide_driver_t ide_cdrom_driver = {
+ name: "ide-cdrom",
+ version: IDECD_VERSION,
+ media: ide_cdrom,
+ busy: 0,
+ supports_dma: 1,
+ supports_dsc_overlap: 1,
+ cleanup: ide_cdrom_cleanup,
+ do_request: ide_do_rw_cdrom,
+ end_request: NULL,
+ ioctl: ide_cdrom_ioctl,
+ open: ide_cdrom_open,
+ release: ide_cdrom_release,
+ media_change: ide_cdrom_check_media_change,
+ revalidate: ide_cdrom_revalidate,
+ pre_reset: NULL,
+ capacity: ide_cdrom_capacity,
+ special: NULL,
+#if 0
+ proc: NULL,
+ driver_reinit: ide_cdrom_reinit,
+#endif
+};
+
+int ide_cdrom_init(void);
+static ide_module_t ide_cdrom_module = {
+ IDE_DRIVER_MODULE,
+ ide_cdrom_init,
+ &ide_cdrom_driver,
+ NULL
+};
+
+/* options */
+char *ignore = NULL;
+
+MODULE_PARM(ignore, "s");
+MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
+
+static void __exit ide_cdrom_exit(void)
+{
+ ide_drive_t *drive;
+ int failed = 0;
+
+ while ((drive = ide_scan_devices (ide_cdrom, ide_cdrom_driver.name, &ide_cdrom_driver, failed)) != NULL)
+ if (ide_cdrom_cleanup (drive)) {
+ printk ("%s: cleanup_module() called while still busy\n", drive->name);
+ failed++;
+ }
+ ide_unregister_module (&ide_cdrom_module);
+}
+
+int ide_cdrom_init(void)
+{
+ ide_drive_t *drive;
+ struct cdrom_info *info;
+ int failed = 0;
+
+ MOD_INC_USE_COUNT;
+ while ((drive = ide_scan_devices (ide_cdrom, ide_cdrom_driver.name, NULL, failed++)) != NULL) {
+ /* skip drives that we were told to ignore */
+ if (ignore != NULL) {
+ if (strstr(ignore, drive->name)) {
+ printk("ide-cd: ignoring drive %s\n", drive->name);
+ continue;
+ }
+ }
+ if (drive->scsi) {
+ printk("ide-cd: passing drive %s to ide-scsi emulation.\n", drive->name);
+ continue;
+ }
+ info = (struct cdrom_info *) kmalloc (sizeof (struct cdrom_info), GFP_KERNEL);
+ if (info == NULL) {
+ printk ("%s: Can't allocate a cdrom structure\n", drive->name);
+ continue;
+ }
+ if (ide_register_subdriver (drive, &ide_cdrom_driver, IDE_SUBDRIVER_VERSION)) {
+ printk ("%s: Failed to register the driver with ide.c\n", drive->name);
+ kfree (info);
+ continue;
+ }
+ memset (info, 0, sizeof (struct cdrom_info));
+ drive->driver_data = info;
+ DRIVER(drive)->busy++;
+ if (ide_cdrom_setup (drive)) {
+ DRIVER(drive)->busy--;
+ if (ide_cdrom_cleanup (drive))
+ printk ("%s: ide_cdrom_cleanup failed in ide_cdrom_init\n", drive->name);
+ continue;
+ }
+ DRIVER(drive)->busy--;
+ failed--;
+ }
+ ide_register_module(&ide_cdrom_module);
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+module_init(ide_cdrom_init);
+module_exit(ide_cdrom_exit);
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * linux/drivers/ide/ide_cd.h
+ *
+ * Copyright (C) 1996-98 Erik Andersen
+ * Copyright (C) 1998-2000 Jens Axboe
+ */
+#ifndef _IDE_CD_H
+#define _IDE_CD_H
+
+#include <xeno/cdrom.h>
+#include <asm/byteorder.h>
+
+/* Turn this on to have the driver print out the meanings of the
+ ATAPI error codes. This will use up additional kernel-space
+ memory, though. */
+
+#ifndef VERBOSE_IDE_CD_ERRORS
+#define VERBOSE_IDE_CD_ERRORS 1
+#endif
+
+
+/* Turning this on will remove code to work around various nonstandard
+ ATAPI implementations. If you know your drive follows the standard,
+ this will give you a slightly smaller kernel. */
+
+#ifndef STANDARD_ATAPI
+#define STANDARD_ATAPI 0
+#endif
+
+
+/* Turning this on will disable the door-locking functionality.
+ This is apparently needed for supermount. */
+
+#ifndef NO_DOOR_LOCKING
+#define NO_DOOR_LOCKING 0
+#endif
+
+/************************************************************************/
+
+#define SECTOR_BITS 9
+// XXX SMH: already defined in ide.h
+#ifdef SECTOR_SIZE
+#undef SECTOR_SIZE
+#endif
+#define SECTOR_SIZE (1 << SECTOR_BITS)
+#define SECTORS_PER_FRAME (CD_FRAMESIZE >> SECTOR_BITS)
+#define SECTOR_BUFFER_SIZE (CD_FRAMESIZE * 32)
+#define SECTORS_BUFFER (SECTOR_BUFFER_SIZE >> SECTOR_BITS)
+#define SECTORS_MAX (131072 >> SECTOR_BITS)
+
+#define BLOCKS_PER_FRAME (CD_FRAMESIZE / BLOCK_SIZE)
+
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+
+/* special command codes for strategy routine. */
+#define PACKET_COMMAND 4315
+#define REQUEST_SENSE_COMMAND 4316
+#define RESET_DRIVE_COMMAND 4317
+
+
+/* Configuration flags. These describe the capabilities of the drive.
+ They generally do not change after initialization, unless we learn
+ more about the drive from stuff failing. */
+struct ide_cd_config_flags {
+ __u8 drq_interrupt : 1; /* Device sends an interrupt when ready
+ for a packet command. */
+ __u8 no_doorlock : 1; /* Drive cannot lock the door. */
+ __u8 no_eject : 1; /* Drive cannot eject the disc. */
+ __u8 nec260 : 1; /* Drive is a pre-1.2 NEC 260 drive. */
+ __u8 playmsf_as_bcd : 1; /* PLAYMSF command takes BCD args. */
+ __u8 tocaddr_as_bcd : 1; /* TOC addresses are in BCD. */
+ __u8 toctracks_as_bcd : 1; /* TOC track numbers are in BCD. */
+ __u8 subchan_as_bcd : 1; /* Subchannel info is in BCD. */
+ __u8 is_changer : 1; /* Drive is a changer. */
+ __u8 cd_r : 1; /* Drive can write to CD-R media . */
+ __u8 cd_rw : 1; /* Drive can write to CD-R/W media . */
+ __u8 dvd : 1; /* Drive is a DVD-ROM */
+ __u8 dvd_r : 1; /* Drive can write DVD-R */
+ __u8 dvd_ram : 1; /* Drive can write DVD-RAM */
+ __u8 test_write : 1; /* Drive can fake writes */
+ __u8 supp_disc_present : 1; /* Changer can report exact contents
+ of slots. */
+ __u8 limit_nframes : 1; /* Drive does not provide data in
+ multiples of SECTOR_SIZE when more
+ than one interrupt is needed. */
+ __u8 seeking : 1; /* Seeking in progress */
+ __u8 audio_play : 1; /* can do audio related commands */
+ __u8 close_tray : 1; /* can close the tray */
+ __u8 writing : 1; /* pseudo write in progress */
+ __u8 reserved : 3;
+ byte max_speed; /* Max speed of the drive */
+};
+#define CDROM_CONFIG_FLAGS(drive) (&(((struct cdrom_info *)(drive->driver_data))->config_flags))
+
+
+/* State flags. These give information about the current state of the
+ drive, and will change during normal operation. */
+struct ide_cd_state_flags {
+ __u8 media_changed : 1; /* Driver has noticed a media change. */
+ __u8 toc_valid : 1; /* Saved TOC information is current. */
+ __u8 door_locked : 1; /* We think that the drive door is locked. */
+ __u8 writing : 1; /* the drive is currently writing */
+ __u8 reserved : 4;
+ byte current_speed; /* Current speed of the drive */
+};
+
+#define CDROM_STATE_FLAGS(drive) (&(((struct cdrom_info *)(drive->driver_data))->state_flags))
+
+struct packet_command {
+ char *buffer;
+ int buflen;
+ int stat;
+ int quiet;
+ int timeout;
+ struct request_sense *sense;
+ unsigned char c[12];
+};
+
+/* Structure of a MSF cdrom address. */
+struct atapi_msf {
+ byte reserved;
+ byte minute;
+ byte second;
+ byte frame;
+};
+
+/* Space to hold the disk TOC. */
+#define MAX_TRACKS 99
+struct atapi_toc_header {
+ unsigned short toc_length;
+ byte first_track;
+ byte last_track;
+};
+
+struct atapi_toc_entry {
+ byte reserved1;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 adr : 4;
+ __u8 control : 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 control : 4;
+ __u8 adr : 4;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+ byte track;
+ byte reserved2;
+ union {
+ unsigned lba;
+ struct atapi_msf msf;
+ } addr;
+};
+
+struct atapi_toc {
+ int last_session_lba;
+ int xa_flag;
+ unsigned long capacity;
+ struct atapi_toc_header hdr;
+ struct atapi_toc_entry ent[MAX_TRACKS+1];
+ /* One extra for the leadout. */
+};
+
+
+/* This structure is annoyingly close to, but not identical with,
+ the cdrom_subchnl structure from cdrom.h. */
+struct atapi_cdrom_subchnl {
+ u_char acdsc_reserved;
+ u_char acdsc_audiostatus;
+ u_short acdsc_length;
+ u_char acdsc_format;
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ u_char acdsc_ctrl: 4;
+ u_char acdsc_adr: 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ u_char acdsc_adr: 4;
+ u_char acdsc_ctrl: 4;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+ u_char acdsc_trk;
+ u_char acdsc_ind;
+ union {
+ struct atapi_msf msf;
+ int lba;
+ } acdsc_absaddr;
+ union {
+ struct atapi_msf msf;
+ int lba;
+ } acdsc_reladdr;
+};
+
+
+
+/* This should probably go into cdrom.h along with the other
+ * generic stuff now in the Mt. Fuji spec.
+ */
+struct atapi_capabilities_page {
+ struct mode_page_header header;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 parameters_saveable : 1;
+ __u8 reserved1 : 1;
+ __u8 page_code : 6;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 page_code : 6;
+ __u8 reserved1 : 1;
+ __u8 parameters_saveable : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+ byte page_length;
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved2 : 2;
+ /* Drive supports reading of DVD-RAM discs */
+ __u8 dvd_ram_read : 1;
+ /* Drive supports reading of DVD-R discs */
+ __u8 dvd_r_read : 1;
+ /* Drive supports reading of DVD-ROM discs */
+ __u8 dvd_rom : 1;
+ /* Drive supports reading CD-R discs with addressing method 2 */
+ __u8 method2 : 1; /* reserved in 1.2 */
+ /* Drive can read from CD-R/W (CD-E) discs (orange book, part III) */
+ __u8 cd_rw_read : 1; /* reserved in 1.2 */
+ /* Drive supports read from CD-R discs (orange book, part II) */
+ __u8 cd_r_read : 1; /* reserved in 1.2 */
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ /* Drive supports read from CD-R discs (orange book, part II) */
+ __u8 cd_r_read : 1; /* reserved in 1.2 */
+ /* Drive can read from CD-R/W (CD-E) discs (orange book, part III) */
+ __u8 cd_rw_read : 1; /* reserved in 1.2 */
+ /* Drive supports reading CD-R discs with addressing method 2 */
+ __u8 method2 : 1;
+ /* Drive supports reading of DVD-ROM discs */
+ __u8 dvd_rom : 1;
+ /* Drive supports reading of DVD-R discs */
+ __u8 dvd_r_read : 1;
+ /* Drive supports reading of DVD-RAM discs */
+ __u8 dvd_ram_read : 1;
+ __u8 reserved2 : 2;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved3 : 2;
+ /* Drive can write DVD-RAM discs */
+ __u8 dvd_ram_write : 1;
+ /* Drive can write DVD-R discs */
+ __u8 dvd_r_write : 1;
+ __u8 reserved3a : 1;
+ /* Drive can fake writes */
+ __u8 test_write : 1;
+ /* Drive can write to CD-R/W (CD-E) discs (orange book, part III) */
+ __u8 cd_rw_write : 1; /* reserved in 1.2 */
+ /* Drive supports write to CD-R discs (orange book, part II) */
+ __u8 cd_r_write : 1; /* reserved in 1.2 */
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ /* Drive can write to CD-R discs (orange book, part II) */
+ __u8 cd_r_write : 1; /* reserved in 1.2 */
+ /* Drive can write to CD-R/W (CD-E) discs (orange book, part III) */
+ __u8 cd_rw_write : 1; /* reserved in 1.2 */
+ /* Drive can fake writes */
+ __u8 test_write : 1;
+ __u8 reserved3a : 1;
+ /* Drive can write DVD-R discs */
+ __u8 dvd_r_write : 1;
+ /* Drive can write DVD-RAM discs */
+ __u8 dvd_ram_write : 1;
+ __u8 reserved3 : 2;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved4 : 1;
+ /* Drive can read multisession discs. */
+ __u8 multisession : 1;
+ /* Drive can read mode 2, form 2 data. */
+ __u8 mode2_form2 : 1;
+ /* Drive can read mode 2, form 1 (XA) data. */
+ __u8 mode2_form1 : 1;
+ /* Drive supports digital output on port 2. */
+ __u8 digport2 : 1;
+ /* Drive supports digital output on port 1. */
+ __u8 digport1 : 1;
+ /* Drive can deliver a composite audio/video data stream. */
+ __u8 composite : 1;
+ /* Drive supports audio play operations. */
+ __u8 audio_play : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ /* Drive supports audio play operations. */
+ __u8 audio_play : 1;
+ /* Drive can deliver a composite audio/video data stream. */
+ __u8 composite : 1;
+ /* Drive supports digital output on port 1. */
+ __u8 digport1 : 1;
+ /* Drive supports digital output on port 2. */
+ __u8 digport2 : 1;
+ /* Drive can read mode 2, form 1 (XA) data. */
+ __u8 mode2_form1 : 1;
+ /* Drive can read mode 2, form 2 data. */
+ __u8 mode2_form2 : 1;
+ /* Drive can read multisession discs. */
+ __u8 multisession : 1;
+ __u8 reserved4 : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved5 : 1;
+ /* Drive can return Media Catalog Number (UPC) info. */
+ __u8 upc : 1;
+ /* Drive can return International Standard Recording Code info. */
+ __u8 isrc : 1;
+ /* Drive supports C2 error pointers. */
+ __u8 c2_pointers : 1;
+ /* R-W data will be returned deinterleaved and error corrected. */
+ __u8 rw_corr : 1;
+ /* Subchannel reads can return combined R-W information. */
+ __u8 rw_supported : 1;
+ /* Drive can continue a read cdda operation from a loss of streaming.*/
+ __u8 cdda_accurate : 1;
+ /* Drive can read Red Book audio data. */
+ __u8 cdda : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ /* Drive can read Red Book audio data. */
+ __u8 cdda : 1;
+ /* Drive can continue a read cdda operation from a loss of streaming.*/
+ __u8 cdda_accurate : 1;
+ /* Subchannel reads can return combined R-W information. */
+ __u8 rw_supported : 1;
+ /* R-W data will be returned deinterleaved and error corrected. */
+ __u8 rw_corr : 1;
+ /* Drive supports C2 error pointers. */
+ __u8 c2_pointers : 1;
+ /* Drive can return International Standard Recording Code info. */
+ __u8 isrc : 1;
+ /* Drive can return Media Catalog Number (UPC) info. */
+ __u8 upc : 1;
+ __u8 reserved5 : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ /* Drive mechanism types. */
+ mechtype_t mechtype : 3;
+ __u8 reserved6 : 1;
+ /* Drive can eject a disc or changer cartridge. */
+ __u8 eject : 1;
+ /* State of prevent/allow jumper. */
+ __u8 prevent_jumper : 1;
+ /* Present state of door lock. */
+ __u8 lock_state : 1;
+ /* Drive can lock the door. */
+ __u8 lock : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+
+ /* Drive can lock the door. */
+ __u8 lock : 1;
+ /* Present state of door lock. */
+ __u8 lock_state : 1;
+ /* State of prevent/allow jumper. */
+ __u8 prevent_jumper : 1;
+ /* Drive can eject a disc or changer cartridge. */
+ __u8 eject : 1;
+ __u8 reserved6 : 1;
+ /* Drive mechanism types. */
+ mechtype_t mechtype : 3;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved7 : 4;
+ /* Drive supports software slot selection. */
+ __u8 sss : 1; /* reserved in 1.2 */
+ /* Changer can report exact contents of slots. */
+ __u8 disc_present : 1; /* reserved in 1.2 */
+ /* Audio for each channel can be muted independently. */
+ __u8 separate_mute : 1;
+ /* Audio level for each channel can be controlled independently. */
+ __u8 separate_volume : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+
+ /* Audio level for each channel can be controlled independently. */
+ __u8 separate_volume : 1;
+ /* Audio for each channel can be muted independently. */
+ __u8 separate_mute : 1;
+ /* Changer can report exact contents of slots. */
+ __u8 disc_present : 1; /* reserved in 1.2 */
+ /* Drive supports software slot selection. */
+ __u8 sss : 1; /* reserved in 1.2 */
+ __u8 reserved7 : 4;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+ /* Note: the following four fields are returned in big-endian form. */
+ /* Maximum speed (in kB/s). */
+ unsigned short maxspeed;
+ /* Number of discrete volume levels. */
+ unsigned short n_vol_levels;
+ /* Size of cache in drive, in kB. */
+ unsigned short buffer_size;
+ /* Current speed (in kB/s). */
+ unsigned short curspeed;
+ char pad[4];
+};
+
+
+struct atapi_mechstat_header {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 fault : 1;
+ __u8 changer_state : 2;
+ __u8 curslot : 5;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 curslot : 5;
+ __u8 changer_state : 2;
+ __u8 fault : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 mech_state : 3;
+ __u8 door_open : 1;
+ __u8 reserved1 : 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 reserved1 : 4;
+ __u8 door_open : 1;
+ __u8 mech_state : 3;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+ byte curlba[3];
+ byte nslots;
+ __u8 short slot_tablelen;
+};
+
+
+struct atapi_slot {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 disc_present : 1;
+ __u8 reserved1 : 6;
+ __u8 change : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 change : 1;
+ __u8 reserved1 : 6;
+ __u8 disc_present : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+
+ byte reserved2[3];
+};
+
+struct atapi_changer_info {
+ struct atapi_mechstat_header hdr;
+ struct atapi_slot slots[0];
+};
+
+/* Extra per-device info for cdrom drives. */
+struct cdrom_info {
+
+ /* Buffer for table of contents. NULL if we haven't allocated
+ a TOC buffer for this device yet. */
+
+ struct atapi_toc *toc;
+
+ unsigned long sector_buffered;
+ unsigned long nsectors_buffered;
+ unsigned char *buffer;
+
+ /* The result of the last successful request sense command
+ on this device. */
+ struct request_sense sense_data;
+
+ struct request request_sense_request;
+ struct packet_command request_sense_pc;
+ int dma;
+ int cmd;
+ unsigned long last_block;
+ unsigned long start_seek;
+ /* Buffer to hold mechanism status and changer slot table. */
+ struct atapi_changer_info *changer_info;
+
+ struct ide_cd_config_flags config_flags;
+ struct ide_cd_state_flags state_flags;
+
+ /* Per-device info needed by cdrom.c generic driver. */
+ struct cdrom_device_info devinfo;
+};
+
+/****************************************************************************
+ * Descriptions of ATAPI error codes.
+ */
+
+#define ARY_LEN(a) ((sizeof(a) / sizeof(a[0])))
+
+/* This stuff should be in cdrom.h, since it is now generic... */
+
+/* ATAPI sense keys (from table 140 of ATAPI 2.6) */
+#define NO_SENSE 0x00
+#define RECOVERED_ERROR 0x01
+#define NOT_READY 0x02
+#define MEDIUM_ERROR 0x03
+#define HARDWARE_ERROR 0x04
+#define ILLEGAL_REQUEST 0x05
+#define UNIT_ATTENTION 0x06
+#define DATA_PROTECT 0x07
+#define ABORTED_COMMAND 0x0b
+#define MISCOMPARE 0x0e
+
+
+
+/* This stuff should be in cdrom.h, since it is now generic... */
+#if VERBOSE_IDE_CD_ERRORS
+
+ /* The generic packet command opcodes for CD/DVD Logical Units,
+ * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
+const struct {
+ unsigned short packet_command;
+ const char * const text;
+} packet_command_texts[] = {
+ { GPCMD_TEST_UNIT_READY, "Test Unit Ready" },
+ { GPCMD_REQUEST_SENSE, "Request Sense" },
+ { GPCMD_FORMAT_UNIT, "Format Unit" },
+ { GPCMD_INQUIRY, "Inquiry" },
+ { GPCMD_START_STOP_UNIT, "Start/Stop Unit" },
+ { GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, "Prevent/Allow Medium Removal" },
+ { GPCMD_READ_FORMAT_CAPACITIES, "Read Format Capacities" },
+ { GPCMD_READ_CDVD_CAPACITY, "Read Cd/Dvd Capacity" },
+ { GPCMD_READ_10, "Read 10" },
+ { GPCMD_WRITE_10, "Write 10" },
+ { GPCMD_SEEK, "Seek" },
+ { GPCMD_WRITE_AND_VERIFY_10, "Write and Verify 10" },
+ { GPCMD_VERIFY_10, "Verify 10" },
+ { GPCMD_FLUSH_CACHE, "Flush Cache" },
+ { GPCMD_READ_SUBCHANNEL, "Read Subchannel" },
+ { GPCMD_READ_TOC_PMA_ATIP, "Read Table of Contents" },
+ { GPCMD_READ_HEADER, "Read Header" },
+ { GPCMD_PLAY_AUDIO_10, "Play Audio 10" },
+ { GPCMD_GET_CONFIGURATION, "Get Configuration" },
+ { GPCMD_PLAY_AUDIO_MSF, "Play Audio MSF" },
+ { GPCMD_PLAYAUDIO_TI, "Play Audio TrackIndex" },
+ { GPCMD_GET_EVENT_STATUS_NOTIFICATION, "Get Event Status Notification" },
+ { GPCMD_PAUSE_RESUME, "Pause/Resume" },
+ { GPCMD_STOP_PLAY_SCAN, "Stop Play/Scan" },
+ { GPCMD_READ_DISC_INFO, "Read Disc Info" },
+ { GPCMD_READ_TRACK_RZONE_INFO, "Read Track Rzone Info" },
+ { GPCMD_RESERVE_RZONE_TRACK, "Reserve Rzone Track" },
+ { GPCMD_SEND_OPC, "Send OPC" },
+ { GPCMD_MODE_SELECT_10, "Mode Select 10" },
+ { GPCMD_REPAIR_RZONE_TRACK, "Repair Rzone Track" },
+ { GPCMD_MODE_SENSE_10, "Mode Sense 10" },
+ { GPCMD_CLOSE_TRACK, "Close Track" },
+ { GPCMD_BLANK, "Blank" },
+ { GPCMD_SEND_EVENT, "Send Event" },
+ { GPCMD_SEND_KEY, "Send Key" },
+ { GPCMD_REPORT_KEY, "Report Key" },
+ { GPCMD_LOAD_UNLOAD, "Load/Unload" },
+ { GPCMD_SET_READ_AHEAD, "Set Read-ahead" },
+ { GPCMD_READ_12, "Read 12" },
+ { GPCMD_GET_PERFORMANCE, "Get Performance" },
+ { GPCMD_SEND_DVD_STRUCTURE, "Send DVD Structure" },
+ { GPCMD_READ_DVD_STRUCTURE, "Read DVD Structure" },
+ { GPCMD_SET_STREAMING, "Set Streaming" },
+ { GPCMD_READ_CD_MSF, "Read CD MSF" },
+ { GPCMD_SCAN, "Scan" },
+ { GPCMD_SET_SPEED, "Set Speed" },
+ { GPCMD_PLAY_CD, "Play CD" },
+ { GPCMD_MECHANISM_STATUS, "Mechanism Status" },
+ { GPCMD_READ_CD, "Read CD" },
+};
+
+
+
+/* From Table 303 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
+const char * const sense_key_texts[16] = {
+ "No sense data",
+ "Recovered error",
+ "Not ready",
+ "Medium error",
+ "Hardware error",
+ "Illegal request",
+ "Unit attention",
+ "Data protect",
+ "(reserved)",
+ "(reserved)",
+ "(reserved)",
+ "Aborted command",
+ "(reserved)",
+ "(reserved)",
+ "Miscompare",
+ "(reserved)",
+};
+
+/* From Table 304 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
+const struct {
+ unsigned long asc_ascq;
+ const char * const text;
+} sense_data_texts[] = {
+ { 0x000000, "No additional sense information" },
+ { 0x000011, "Play operation in progress" },
+ { 0x000012, "Play operation paused" },
+ { 0x000013, "Play operation successfully completed" },
+ { 0x000014, "Play operation stopped due to error" },
+ { 0x000015, "No current audio status to return" },
+ { 0x010c0a, "Write error - padding blocks added" },
+ { 0x011700, "Recovered data with no error correction applied" },
+ { 0x011701, "Recovered data with retries" },
+ { 0x011702, "Recovered data with positive head offset" },
+ { 0x011703, "Recovered data with negative head offset" },
+ { 0x011704, "Recovered data with retries and/or CIRC applied" },
+ { 0x011705, "Recovered data using previous sector ID" },
+ { 0x011800, "Recovered data with error correction applied" },
+ { 0x011801, "Recovered data with error correction and retries applied"},
+ { 0x011802, "Recovered data - the data was auto-reallocated" },
+ { 0x011803, "Recovered data with CIRC" },
+ { 0x011804, "Recovered data with L-EC" },
+ { 0x015d00,
+ "Failure prediction threshold exceeded - Predicted logical unit failure" },
+ { 0x015d01,
+ "Failure prediction threshold exceeded - Predicted media failure" },
+ { 0x015dff, "Failure prediction threshold exceeded - False" },
+ { 0x017301, "Power calibration area almost full" },
+ { 0x020400, "Logical unit not ready - cause not reportable" },
+ /* Following is misspelled in ATAPI 2.6, _and_ in Mt. Fuji */
+ { 0x020401,
+ "Logical unit not ready - in progress [sic] of becoming ready" },
+ { 0x020402, "Logical unit not ready - initializing command required" },
+ { 0x020403, "Logical unit not ready - manual intervention required" },
+ { 0x020404, "Logical unit not ready - format in progress" },
+ { 0x020407, "Logical unit not ready - operation in progress" },
+ { 0x020408, "Logical unit not ready - long write in progress" },
+ { 0x020600, "No reference position found (media may be upside down)" },
+ { 0x023000, "Incompatible medium installed" },
+ { 0x023a00, "Medium not present" },
+ { 0x025300, "Media load or eject failed" },
+ { 0x025700, "Unable to recover table of contents" },
+ { 0x030300, "Peripheral device write fault" },
+ { 0x030301, "No write current" },
+ { 0x030302, "Excessive write errors" },
+ { 0x030c00, "Write error" },
+ { 0x030c01, "Write error - Recovered with auto reallocation" },
+ { 0x030c02, "Write error - auto reallocation failed" },
+ { 0x030c03, "Write error - recommend reassignment" },
+ { 0x030c04, "Compression check miscompare error" },
+ { 0x030c05, "Data expansion occurred during compress" },
+ { 0x030c06, "Block not compressible" },
+ { 0x030c07, "Write error - recovery needed" },
+ { 0x030c08, "Write error - recovery failed" },
+ { 0x030c09, "Write error - loss of streaming" },
+ { 0x031100, "Unrecovered read error" },
+ { 0x031106, "CIRC unrecovered error" },
+ { 0x033101, "Format command failed" },
+ { 0x033200, "No defect spare location available" },
+ { 0x033201, "Defect list update failure" },
+ { 0x035100, "Erase failure" },
+ { 0x037200, "Session fixation error" },
+ { 0x037201, "Session fixation error writin lead-in" },
+ { 0x037202, "Session fixation error writin lead-out" },
+ { 0x037300, "CD control error" },
+ { 0x037302, "Power calibration area is full" },
+ { 0x037303, "Power calibration area error" },
+ { 0x037304, "Program memory area / RMA update failure" },
+ { 0x037305, "Program memory area / RMA is full" },
+ { 0x037306, "Program memory area / RMA is (almost) full" },
+
+ { 0x040200, "No seek complete" },
+ { 0x040300, "Write fault" },
+ { 0x040900, "Track following error" },
+ { 0x040901, "Tracking servo failure" },
+ { 0x040902, "Focus servo failure" },
+ { 0x040903, "Spindle servo failure" },
+ { 0x041500, "Random positioning error" },
+ { 0x041501, "Mechanical positioning or changer error" },
+ { 0x041502, "Positioning error detected by read of medium" },
+ { 0x043c00, "Mechanical positioning or changer error" },
+ { 0x044000, "Diagnostic failure on component (ASCQ)" },
+ { 0x044400, "Internal CD/DVD logical unit failure" },
+ { 0x04b600, "Media load mechanism failed" },
+ { 0x051a00, "Parameter list length error" },
+ { 0x052000, "Invalid command operation code" },
+ { 0x052100, "Logical block address out of range" },
+ { 0x052102, "Invalid address for write" },
+ { 0x052400, "Invalid field in command packet" },
+ { 0x052600, "Invalid field in parameter list" },
+ { 0x052601, "Parameter not supported" },
+ { 0x052602, "Parameter value invalid" },
+ { 0x052700, "Write protected media" },
+ { 0x052c00, "Command sequence error" },
+ { 0x052c03, "Current program area is not empty" },
+ { 0x052c04, "Current program area is empty" },
+ { 0x053001, "Cannot read medium - unknown format" },
+ { 0x053002, "Cannot read medium - incompatible format" },
+ { 0x053900, "Saving parameters not supported" },
+ { 0x054e00, "Overlapped commands attempted" },
+ { 0x055302, "Medium removal prevented" },
+ { 0x055500, "System resource failure" },
+ { 0x056300, "End of user area encountered on this track" },
+ { 0x056400, "Illegal mode for this track or incompatible medium" },
+ { 0x056f00, "Copy protection key exchange failure - Authentication failure" },
+ { 0x056f01, "Copy protection key exchange failure - Key not present" },
+ { 0x056f02, "Copy protection key exchange failure - Key not established" },
+ { 0x056f03, "Read of scrambled sector without authentication" },
+ { 0x056f04, "Media region code is mismatched to logical unit" },
+ { 0x056f05, "Drive region must be permanent / region reset count error" },
+ { 0x057203, "Session fixation error - incomplete track in session" },
+ { 0x057204, "Empty or partially written reserved track" },
+ { 0x057205, "No more RZONE reservations are allowed" },
+ { 0x05bf00, "Loss of streaming" },
+ { 0x062800, "Not ready to ready transition, medium may have changed" },
+ { 0x062900, "Power on, reset or hardware reset occurred" },
+ { 0x062a00, "Parameters changed" },
+ { 0x062a01, "Mode parameters changed" },
+ { 0x062e00, "Insufficient time for operation" },
+ { 0x063f00, "Logical unit operating conditions have changed" },
+ { 0x063f01, "Microcode has been changed" },
+ { 0x065a00, "Operator request or state change input (unspecified)" },
+ { 0x065a01, "Operator medium removal request" },
+ { 0x0bb900, "Play operation aborted" },
+
+ /* Here we use 0xff for the key (not a valid key) to signify
+ * that these can have _any_ key value associated with them... */
+ { 0xff0401, "Logical unit is in process of becoming ready" },
+ { 0xff0400, "Logical unit not ready, cause not reportable" },
+ { 0xff0402, "Logical unit not ready, initializing command required" },
+ { 0xff0403, "Logical unit not ready, manual intervention required" },
+ { 0xff0500, "Logical unit does not respond to selection" },
+ { 0xff0800, "Logical unit communication failure" },
+ { 0xff0802, "Logical unit communication parity error" },
+ { 0xff0801, "Logical unit communication time-out" },
+ { 0xff2500, "Logical unit not supported" },
+ { 0xff4c00, "Logical unit failed self-configuration" },
+ { 0xff3e00, "Logical unit has not self-configured yet" },
+};
+#endif
+
+
+#endif /* _IDE_CD_H */
--- /dev/null
+/*
+ * -- <linux/cdrom.h>
+ * General header file for linux CD-ROM drivers
+ * Copyright (C) 1992 David Giller, rafetmad@oxy.edu
+ * 1994, 1995 Eberhard Moenkeberg, emoenke@gwdg.de
+ * 1996 David van Leeuwen, david@tm.tno.nl
+ * 1997, 1998 Erik Andersen, andersee@debian.org
+ * 1998-2000 Jens Axboe, axboe@suse.de
+ */
+
+#ifndef _LINUX_CDROM_H
+#define _LINUX_CDROM_H
+
+#include <asm/byteorder.h>
+
+/*******************************************************
+ * As of Linux 2.1.x, all Linux CD-ROM application programs will use this
+ * (and only this) include file. It is my hope to provide Linux with
+ * a uniform interface between software accessing CD-ROMs and the various
+ * device drivers that actually talk to the drives. There may still be
+ * 23 different kinds of strange CD-ROM drives, but at least there will
+ * now be one, and only one, Linux CD-ROM interface.
+ *
+ * Additionally, as of Linux 2.1.x, all Linux application programs
+ * should use the O_NONBLOCK option when opening a CD-ROM device
+ * for subsequent ioctl commands. This allows for neat system errors
+ * like "No medium found" or "Wrong medium type" upon attempting to
+ * mount or play an empty slot, mount an audio disc, or play a data disc.
+ * Generally, changing an application program to support O_NONBLOCK
+ * is as easy as the following:
+ * - drive = open("/dev/cdrom", O_RDONLY);
+ * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
+ * It is worth the small change.
+ *
+ * Patches for many common CD programs (provided by David A. van Leeuwen)
+ * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
+ *
+ *******************************************************/
+
+/* When a driver supports a certain function, but the cdrom drive we are
+ * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will
+ * borrow the "Operation not supported" error from the network folks to
+ * accomplish this. Maybe someday we will get a more targeted error code,
+ * but this will do for now... */
+#define EDRIVE_CANT_DO_THIS EOPNOTSUPP
+
+/*******************************************************
+ * The CD-ROM IOCTL commands -- these should be supported by
+ * all the various cdrom drivers. For the CD-ROM ioctls, we
+ * will commandeer byte 0x53, or 'S'.
+ *******************************************************/
+#define CDROMPAUSE 0x5301 /* Pause Audio Operation */
+#define CDROMRESUME 0x5302 /* Resume paused Audio Operation */
+#define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */
+#define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index
+ (struct cdrom_ti) */
+#define CDROMREADTOCHDR 0x5305 /* Read TOC header
+ (struct cdrom_tochdr) */
+#define CDROMREADTOCENTRY 0x5306 /* Read TOC entry
+ (struct cdrom_tocentry) */
+#define CDROMSTOP 0x5307 /* Stop the cdrom drive */
+#define CDROMSTART 0x5308 /* Start the cdrom drive */
+#define CDROMEJECT 0x5309 /* Ejects the cdrom media */
+#define CDROMVOLCTRL 0x530a /* Control output volume
+ (struct cdrom_volctrl) */
+#define CDROMSUBCHNL 0x530b /* Read subchannel data
+ (struct cdrom_subchnl) */
+#define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes)
+ (struct cdrom_read) */
+#define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes)
+ (struct cdrom_read) */
+#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
+#define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */
+#define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session
+ address of multi session disks
+ (struct cdrom_multisession) */
+#define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code"
+ if available (struct cdrom_mcn) */
+#define CDROM_GET_UPC CDROM_GET_MCN /* This one is depricated,
+ but here anyway for compatability */
+#define CDROMRESET 0x5312 /* hard-reset the drive */
+#define CDROMVOLREAD 0x5313 /* Get the drive's volume setting
+ (struct cdrom_volctrl) */
+#define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes)
+ (struct cdrom_read) */
+/*
+ * These ioctls are used only used in aztcd.c and optcd.c
+ */
+#define CDROMREADCOOKED 0x5315 /* read data in cooked mode */
+#define CDROMSEEK 0x5316 /* seek msf address */
+
+/*
+ * This ioctl is only used by the scsi-cd driver.
+ It is for playing audio in logical block addressing mode.
+ */
+#define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */
+
+/*
+ * These ioctls are only used in optcd.c
+ */
+#define CDROMREADALL 0x5318 /* read all 2646 bytes */
+
+/*
+ * These ioctls are (now) only in ide-cd.c for controlling
+ * drive spindown time. They should be implemented in the
+ * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
+ * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
+ * -Erik
+ */
+#define CDROMGETSPINDOWN 0x531d
+#define CDROMSETSPINDOWN 0x531e
+
+/*
+ * These ioctls are implemented through the uniform CD-ROM driver
+ * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
+ * drivers are eventually ported to the uniform CD-ROM driver interface.
+ */
+#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
+#define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */
+#define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */
+#define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */
+#define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */
+#define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */
+#define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */
+#define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */
+#define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */
+#define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */
+#define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */
+#define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */
+
+/* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
+ * Future CDROM ioctls should be kept below 0x537F
+ */
+
+/* This ioctl is only used by sbpcd at the moment */
+#define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */
+ /* conflict with SCSI_IOCTL_GET_IDLUN */
+
+/* DVD-ROM Specific ioctls */
+#define DVD_READ_STRUCT 0x5390 /* Read structure */
+#define DVD_WRITE_STRUCT 0x5391 /* Write structure */
+#define DVD_AUTH 0x5392 /* Authentication */
+
+#define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */
+#define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */
+#define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */
+
+/*******************************************************
+ * CDROM IOCTL structures
+ *******************************************************/
+
+/* Address in MSF format */
+struct cdrom_msf0
+{
+ __u8 minute;
+ __u8 second;
+ __u8 frame;
+};
+
+/* Address in either MSF or logical format */
+union cdrom_addr
+{
+ struct cdrom_msf0 msf;
+ int lba;
+};
+
+/* This struct is used by the CDROMPLAYMSF ioctl */
+struct cdrom_msf
+{
+ __u8 cdmsf_min0; /* start minute */
+ __u8 cdmsf_sec0; /* start second */
+ __u8 cdmsf_frame0; /* start frame */
+ __u8 cdmsf_min1; /* end minute */
+ __u8 cdmsf_sec1; /* end second */
+ __u8 cdmsf_frame1; /* end frame */
+};
+
+/* This struct is used by the CDROMPLAYTRKIND ioctl */
+struct cdrom_ti
+{
+ __u8 cdti_trk0; /* start track */
+ __u8 cdti_ind0; /* start index */
+ __u8 cdti_trk1; /* end track */
+ __u8 cdti_ind1; /* end index */
+};
+
+/* This struct is used by the CDROMREADTOCHDR ioctl */
+struct cdrom_tochdr
+{
+ __u8 cdth_trk0; /* start track */
+ __u8 cdth_trk1; /* end track */
+};
+
+/* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
+struct cdrom_volctrl
+{
+ __u8 channel0;
+ __u8 channel1;
+ __u8 channel2;
+ __u8 channel3;
+};
+
+/* This struct is used by the CDROMSUBCHNL ioctl */
+struct cdrom_subchnl
+{
+ __u8 cdsc_format;
+ __u8 cdsc_audiostatus;
+ __u8 cdsc_adr: 4;
+ __u8 cdsc_ctrl: 4;
+ __u8 cdsc_trk;
+ __u8 cdsc_ind;
+ union cdrom_addr cdsc_absaddr;
+ union cdrom_addr cdsc_reladdr;
+};
+
+
+/* This struct is used by the CDROMREADTOCENTRY ioctl */
+struct cdrom_tocentry
+{
+ __u8 cdte_track;
+ __u8 cdte_adr :4;
+ __u8 cdte_ctrl :4;
+ __u8 cdte_format;
+ union cdrom_addr cdte_addr;
+ __u8 cdte_datamode;
+};
+
+/* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
+struct cdrom_read
+{
+ int cdread_lba;
+ char *cdread_bufaddr;
+ int cdread_buflen;
+};
+
+/* This struct is used by the CDROMREADAUDIO ioctl */
+struct cdrom_read_audio
+{
+ union cdrom_addr addr; /* frame address */
+ __u8 addr_format; /* CDROM_LBA or CDROM_MSF */
+ int nframes; /* number of 2352-byte-frames to read at once */
+ __u8 *buf; /* frame buffer (size: nframes*2352 bytes) */
+};
+
+/* This struct is used with the CDROMMULTISESSION ioctl */
+struct cdrom_multisession
+{
+ union cdrom_addr addr; /* frame address: start-of-last-session
+ (not the new "frame 16"!). Only valid
+ if the "xa_flag" is true. */
+ __u8 xa_flag; /* 1: "is XA disk" */
+ __u8 addr_format; /* CDROM_LBA or CDROM_MSF */
+};
+
+/* This struct is used with the CDROM_GET_MCN ioctl.
+ * Very few audio discs actually have Universal Product Code information,
+ * which should just be the Medium Catalog Number on the box. Also note
+ * that the way the codeis written on CD is _not_ uniform across all discs!
+ */
+struct cdrom_mcn
+{
+ __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
+};
+
+/* This is used by the CDROMPLAYBLK ioctl */
+struct cdrom_blk
+{
+ unsigned from;
+ unsigned short len;
+};
+
+#define CDROM_PACKET_SIZE 12
+
+#define CGC_DATA_UNKNOWN 0
+#define CGC_DATA_WRITE 1
+#define CGC_DATA_READ 2
+#define CGC_DATA_NONE 3
+
+/* for CDROM_PACKET_COMMAND ioctl */
+struct cdrom_generic_command
+{
+ unsigned char cmd[CDROM_PACKET_SIZE];
+ unsigned char *buffer;
+ unsigned int buflen;
+ int stat;
+ struct request_sense *sense;
+ unsigned char data_direction;
+ int quiet;
+ int timeout;
+ void *reserved[1];
+};
+
+
+/*
+ * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336,
+ * 2340, or 2352 bytes long.
+
+* Sector types of the standard CD-ROM data formats:
+ *
+ * format sector type user data size (bytes)
+ * -----------------------------------------------------------------------------
+ * 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW)
+ * 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE)
+ * 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0)
+ * 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE)
+ * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes)
+ *
+ *
+ * The layout of the standard CD-ROM data formats:
+ * -----------------------------------------------------------------------------
+ * - audio (red): | audio_sample_bytes |
+ * | 2352 |
+ *
+ * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC |
+ * | 12 - 4 - 2048 - 4 - 8 - 276 |
+ *
+ * - data (yellow, mode2): | sync - head - data |
+ * | 12 - 4 - 2336 |
+ *
+ * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
+ * | 12 - 4 - 8 - 2048 - 4 - 276 |
+ *
+ * - XA data (green, mode2 form2): | sync - head - sub - data - Spare |
+ * | 12 - 4 - 8 - 2324 - 4 |
+ *
+ */
+
+/* Some generally useful CD-ROM information -- mostly based on the above */
+#define CD_MINS 74 /* max. minutes per CD, not really a limit */
+#define CD_SECS 60 /* seconds per minute */
+#define CD_FRAMES 75 /* frames per second */
+#define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */
+#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */
+#define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */
+#define CD_NUM_OF_CHUNKS 98 /* chunks per frame */
+#define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */
+#define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */
+#define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */
+#define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */
+#define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */
+#define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */
+#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
+#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */
+#define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */
+/* most drives don't deliver everything: */
+#define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/
+#define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/
+
+#define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */
+#define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */
+#define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */
+
+/* CD-ROM address types (cdrom_tocentry.cdte_format) */
+#define CDROM_LBA 0x01 /* "logical block": first frame is #0 */
+#define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
+
+/* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */
+#define CDROM_DATA_TRACK 0x04
+
+/* The leadout track is always 0xAA, regardless of # of tracks on disc */
+#define CDROM_LEADOUT 0xAA
+
+/* audio states (from SCSI-2, but seen with other drives, too) */
+#define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */
+#define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */
+#define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */
+#define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */
+#define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */
+#define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */
+
+/* capability flags used with the uniform CD-ROM driver */
+#define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */
+#define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */
+#define CDC_LOCK 0x4 /* disable manual eject */
+#define CDC_SELECT_SPEED 0x8 /* programmable speed */
+#define CDC_SELECT_DISC 0x10 /* select disc from juke-box */
+#define CDC_MULTI_SESSION 0x20 /* read sessions>1 */
+#define CDC_MCN 0x40 /* Medium Catalog Number */
+#define CDC_MEDIA_CHANGED 0x80 /* media changed */
+#define CDC_PLAY_AUDIO 0x100 /* audio functions */
+#define CDC_RESET 0x200 /* hard reset device */
+#define CDC_IOCTLS 0x400 /* driver has non-standard ioctls */
+#define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */
+#define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */
+#define CDC_CD_R 0x2000 /* drive is a CD-R */
+#define CDC_CD_RW 0x4000 /* drive is a CD-RW */
+#define CDC_DVD 0x8000 /* drive is a DVD */
+#define CDC_DVD_R 0x10000 /* drive can write DVD-R */
+#define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */
+
+/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
+#define CDS_NO_INFO 0 /* if not implemented */
+#define CDS_NO_DISC 1
+#define CDS_TRAY_OPEN 2
+#define CDS_DRIVE_NOT_READY 3
+#define CDS_DISC_OK 4
+
+/* return values for the CDROM_DISC_STATUS ioctl */
+/* can also return CDS_NO_[INFO|DISC], from above */
+#define CDS_AUDIO 100
+#define CDS_DATA_1 101
+#define CDS_DATA_2 102
+#define CDS_XA_2_1 103
+#define CDS_XA_2_2 104
+#define CDS_MIXED 105
+
+/* User-configurable behavior options for the uniform CD-ROM driver */
+#define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */
+#define CDO_AUTO_EJECT 0x2 /* open tray on last release() */
+#define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */
+#define CDO_LOCK 0x8 /* lock tray on open files */
+#define CDO_CHECK_TYPE 0x10 /* check type on open for data */
+
+/* Special codes used when specifying changer slots. */
+#define CDSL_NONE ((int) (~0U>>1)-1)
+#define CDSL_CURRENT ((int) (~0U>>1))
+
+/* For partition based multisession access. IDE can handle 64 partitions
+ * per drive - SCSI CD-ROM's use minors to differentiate between the
+ * various drives, so we can't do multisessions the same way there.
+ * Use the -o session=x option to mount on them.
+ */
+#define CD_PART_MAX 64
+#define CD_PART_MASK (CD_PART_MAX - 1)
+
+/*********************************************************************
+ * Generic Packet commands, MMC commands, and such
+ *********************************************************************/
+
+ /* The generic packet command opcodes for CD/DVD Logical Units,
+ * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
+#define GPCMD_BLANK 0xa1
+#define GPCMD_CLOSE_TRACK 0x5b
+#define GPCMD_FLUSH_CACHE 0x35
+#define GPCMD_FORMAT_UNIT 0x04
+#define GPCMD_GET_CONFIGURATION 0x46
+#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
+#define GPCMD_GET_PERFORMANCE 0xac
+#define GPCMD_INQUIRY 0x12
+#define GPCMD_LOAD_UNLOAD 0xa6
+#define GPCMD_MECHANISM_STATUS 0xbd
+#define GPCMD_MODE_SELECT_10 0x55
+#define GPCMD_MODE_SENSE_10 0x5a
+#define GPCMD_PAUSE_RESUME 0x4b
+#define GPCMD_PLAY_AUDIO_10 0x45
+#define GPCMD_PLAY_AUDIO_MSF 0x47
+#define GPCMD_PLAY_AUDIO_TI 0x48
+#define GPCMD_PLAY_CD 0xbc
+#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
+#define GPCMD_READ_10 0x28
+#define GPCMD_READ_12 0xa8
+#define GPCMD_READ_CDVD_CAPACITY 0x25
+#define GPCMD_READ_CD 0xbe
+#define GPCMD_READ_CD_MSF 0xb9
+#define GPCMD_READ_DISC_INFO 0x51
+#define GPCMD_READ_DVD_STRUCTURE 0xad
+#define GPCMD_READ_FORMAT_CAPACITIES 0x23
+#define GPCMD_READ_HEADER 0x44
+#define GPCMD_READ_TRACK_RZONE_INFO 0x52
+#define GPCMD_READ_SUBCHANNEL 0x42
+#define GPCMD_READ_TOC_PMA_ATIP 0x43
+#define GPCMD_REPAIR_RZONE_TRACK 0x58
+#define GPCMD_REPORT_KEY 0xa4
+#define GPCMD_REQUEST_SENSE 0x03
+#define GPCMD_RESERVE_RZONE_TRACK 0x53
+#define GPCMD_SCAN 0xba
+#define GPCMD_SEEK 0x2b
+#define GPCMD_SEND_DVD_STRUCTURE 0xad
+#define GPCMD_SEND_EVENT 0xa2
+#define GPCMD_SEND_KEY 0xa3
+#define GPCMD_SEND_OPC 0x54
+#define GPCMD_SET_READ_AHEAD 0xa7
+#define GPCMD_SET_STREAMING 0xb6
+#define GPCMD_START_STOP_UNIT 0x1b
+#define GPCMD_STOP_PLAY_SCAN 0x4e
+#define GPCMD_TEST_UNIT_READY 0x00
+#define GPCMD_VERIFY_10 0x2f
+#define GPCMD_WRITE_10 0x2a
+#define GPCMD_WRITE_AND_VERIFY_10 0x2e
+/* This is listed as optional in ATAPI 2.6, but is (curiously)
+ * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
+ * Table 377 as an MMC command for SCSi devices though... Most ATAPI
+ * drives support it. */
+#define GPCMD_SET_SPEED 0xbb
+/* This seems to be a SCSI specific CD-ROM opcode
+ * to play data at track/index */
+#define GPCMD_PLAYAUDIO_TI 0x48
+/*
+ * From MS Media Status Notification Support Specification. For
+ * older drives only.
+ */
+#define GPCMD_GET_MEDIA_STATUS 0xda
+
+/* Mode page codes for mode sense/set */
+#define GPMODE_R_W_ERROR_PAGE 0x01
+#define GPMODE_WRITE_PARMS_PAGE 0x05
+#define GPMODE_AUDIO_CTL_PAGE 0x0e
+#define GPMODE_POWER_PAGE 0x1a
+#define GPMODE_FAULT_FAIL_PAGE 0x1c
+#define GPMODE_TO_PROTECT_PAGE 0x1d
+#define GPMODE_CAPABILITIES_PAGE 0x2a
+#define GPMODE_ALL_PAGES 0x3f
+/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
+ * of MODE_SENSE_POWER_PAGE */
+#define GPMODE_CDROM_PAGE 0x0d
+
+
+
+/* DVD struct types */
+#define DVD_STRUCT_PHYSICAL 0x00
+#define DVD_STRUCT_COPYRIGHT 0x01
+#define DVD_STRUCT_DISCKEY 0x02
+#define DVD_STRUCT_BCA 0x03
+#define DVD_STRUCT_MANUFACT 0x04
+
+struct dvd_layer {
+ __u8 book_version : 4;
+ __u8 book_type : 4;
+ __u8 min_rate : 4;
+ __u8 disc_size : 4;
+ __u8 layer_type : 4;
+ __u8 track_path : 1;
+ __u8 nlayers : 2;
+ __u8 track_density : 4;
+ __u8 linear_density : 4;
+ __u8 bca : 1;
+ __u32 start_sector;
+ __u32 end_sector;
+ __u32 end_sector_l0;
+};
+
+#define DVD_LAYERS 4
+
+struct dvd_physical {
+ __u8 type;
+ __u8 layer_num;
+ struct dvd_layer layer[DVD_LAYERS];
+};
+
+struct dvd_copyright {
+ __u8 type;
+
+ __u8 layer_num;
+ __u8 cpst;
+ __u8 rmi;
+};
+
+struct dvd_disckey {
+ __u8 type;
+
+ unsigned agid : 2;
+ __u8 value[2048];
+};
+
+struct dvd_bca {
+ __u8 type;
+
+ int len;
+ __u8 value[188];
+};
+
+struct dvd_manufact {
+ __u8 type;
+
+ __u8 layer_num;
+ int len;
+ __u8 value[2048];
+};
+
+typedef union {
+ __u8 type;
+
+ struct dvd_physical physical;
+ struct dvd_copyright copyright;
+ struct dvd_disckey disckey;
+ struct dvd_bca bca;
+ struct dvd_manufact manufact;
+} dvd_struct;
+
+/*
+ * DVD authentication ioctl
+ */
+
+/* Authentication states */
+#define DVD_LU_SEND_AGID 0
+#define DVD_HOST_SEND_CHALLENGE 1
+#define DVD_LU_SEND_KEY1 2
+#define DVD_LU_SEND_CHALLENGE 3
+#define DVD_HOST_SEND_KEY2 4
+
+/* Termination states */
+#define DVD_AUTH_ESTABLISHED 5
+#define DVD_AUTH_FAILURE 6
+
+/* Other functions */
+#define DVD_LU_SEND_TITLE_KEY 7
+#define DVD_LU_SEND_ASF 8
+#define DVD_INVALIDATE_AGID 9
+#define DVD_LU_SEND_RPC_STATE 10
+#define DVD_HOST_SEND_RPC_STATE 11
+
+/* State data */
+typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */
+typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */
+
+struct dvd_lu_send_agid {
+ __u8 type;
+ unsigned agid : 2;
+};
+
+struct dvd_host_send_challenge {
+ __u8 type;
+ unsigned agid : 2;
+
+ dvd_challenge chal;
+};
+
+struct dvd_send_key {
+ __u8 type;
+ unsigned agid : 2;
+
+ dvd_key key;
+};
+
+struct dvd_lu_send_challenge {
+ __u8 type;
+ unsigned agid : 2;
+
+ dvd_challenge chal;
+};
+
+#define DVD_CPM_NO_COPYRIGHT 0
+#define DVD_CPM_COPYRIGHTED 1
+
+#define DVD_CP_SEC_NONE 0
+#define DVD_CP_SEC_EXIST 1
+
+#define DVD_CGMS_UNRESTRICTED 0
+#define DVD_CGMS_SINGLE 2
+#define DVD_CGMS_RESTRICTED 3
+
+struct dvd_lu_send_title_key {
+ __u8 type;
+ unsigned agid : 2;
+
+ dvd_key title_key;
+ int lba;
+ unsigned cpm : 1;
+ unsigned cp_sec : 1;
+ unsigned cgms : 2;
+};
+
+struct dvd_lu_send_asf {
+ __u8 type;
+ unsigned agid : 2;
+
+ unsigned asf : 1;
+};
+
+struct dvd_host_send_rpcstate {
+ __u8 type;
+ __u8 pdrc;
+};
+
+struct dvd_lu_send_rpcstate {
+ __u8 type : 2;
+ __u8 vra : 3;
+ __u8 ucca : 3;
+ __u8 region_mask;
+ __u8 rpc_scheme;
+};
+
+typedef union {
+ __u8 type;
+
+ struct dvd_lu_send_agid lsa;
+ struct dvd_host_send_challenge hsc;
+ struct dvd_send_key lsk;
+ struct dvd_lu_send_challenge lsc;
+ struct dvd_send_key hsk;
+ struct dvd_lu_send_title_key lstk;
+ struct dvd_lu_send_asf lsasf;
+ struct dvd_host_send_rpcstate hrpcs;
+ struct dvd_lu_send_rpcstate lrpcs;
+} dvd_authinfo;
+
+struct request_sense {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 valid : 1;
+ __u8 error_code : 7;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 error_code : 7;
+ __u8 valid : 1;
+#endif
+ __u8 segment_number;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved1 : 2;
+ __u8 ili : 1;
+ __u8 reserved2 : 1;
+ __u8 sense_key : 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 sense_key : 4;
+ __u8 reserved2 : 1;
+ __u8 ili : 1;
+ __u8 reserved1 : 2;
+#endif
+ __u8 information[4];
+ __u8 add_sense_len;
+ __u8 command_info[4];
+ __u8 asc;
+ __u8 ascq;
+ __u8 fruc;
+ __u8 sks[3];
+ __u8 asb[46];
+};
+
+#ifdef __KERNEL__
+#if 0
+#include <linux/devfs_fs_kernel.h>
+#else
+#include <xeno/kdev_t.h>
+#endif
+
+struct cdrom_write_settings {
+ unsigned char fpacket; /* fixed/variable packets */
+ unsigned long packet_size; /* write out this number of packets */
+ unsigned long nwa; /* next writeable address */
+ unsigned char writeable; /* cdrom is writeable */
+};
+
+/* Uniform cdrom data structures for cdrom.c */
+struct cdrom_device_info {
+ struct cdrom_device_ops *ops; /* link to device_ops */
+ struct cdrom_device_info *next; /* next device_info for this major */
+ void *handle; /* driver-dependent data */
+#if 0
+ devfs_handle_t de; /* real driver should create this */
+#endif
+ int number; /* generic driver updates this */
+/* specifications */
+ kdev_t dev; /* device number */
+ int mask; /* mask of capability: disables them */
+ int speed; /* maximum speed for reading data */
+ int capacity; /* number of discs in jukebox */
+/* device-related storage */
+ int options : 30; /* options flags */
+ unsigned mc_flags : 2; /* media change buffer flags */
+ int use_count; /* number of times device opened */
+ char name[20]; /* name of the device type */
+/* per-device flags */
+ __u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */
+ __u8 reserved : 6; /* not used yet */
+ struct cdrom_write_settings write;
+};
+
+struct cdrom_device_ops {
+/* routines */
+ int (*open) (struct cdrom_device_info *, int);
+ void (*release) (struct cdrom_device_info *);
+ int (*drive_status) (struct cdrom_device_info *, int);
+ int (*media_changed) (struct cdrom_device_info *, int);
+ int (*tray_move) (struct cdrom_device_info *, int);
+ int (*lock_door) (struct cdrom_device_info *, int);
+ int (*select_speed) (struct cdrom_device_info *, int);
+ int (*select_disc) (struct cdrom_device_info *, int);
+ int (*get_last_session) (struct cdrom_device_info *,
+ struct cdrom_multisession *);
+ int (*get_mcn) (struct cdrom_device_info *,
+ struct cdrom_mcn *);
+ /* hard reset device */
+ int (*reset) (struct cdrom_device_info *);
+ /* play stuff */
+ int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
+ /* dev-specific */
+ int (*dev_ioctl) (struct cdrom_device_info *,
+ unsigned int, unsigned long);
+/* driver specifications */
+ const int capability; /* capability flags */
+ int n_minors; /* number of active minor devices */
+ /* handle uniform packets for scsi type devices (scsi,atapi) */
+ int (*generic_packet) (struct cdrom_device_info *,
+ struct cdrom_generic_command *);
+};
+
+/* the general block_device operations structure: */
+#include <xeno/blkdev.h> /* XXX SMH: pull in wafer thin file and inode defns */
+extern int cdrom_open(struct inode *, struct file *);
+extern int cdrom_release(struct inode *, struct file *);
+extern int cdrom_ioctl(struct inode *, struct file *, unsigned, unsigned long);
+extern int cdrom_media_changed(kdev_t);
+
+extern int register_cdrom(struct cdrom_device_info *cdi);
+extern int unregister_cdrom(struct cdrom_device_info *cdi);
+
+#if 0
+static inline void devfs_plain_cdrom(struct cdrom_device_info *cdi,
+ struct block_device_operations *ops)
+{
+ char vname[23];
+
+ sprintf (vname, "cdroms/cdrom%d", cdi->number);
+ cdi->de = devfs_register (NULL, vname, DEVFS_FL_DEFAULT,
+ MAJOR (cdi->dev), MINOR (cdi->dev),
+ S_IFBLK | S_IRUGO | S_IWUGO,
+ ops, NULL);
+}
+#endif
+
+typedef struct {
+ int data;
+ int audio;
+ int cdi;
+ int xa;
+ long error;
+} tracktype;
+
+extern void cdrom_count_tracks(struct cdrom_device_info *cdi,tracktype* tracks);
+extern int cdrom_get_next_writable(kdev_t dev, long *next_writable);
+extern int cdrom_get_last_written(kdev_t dev, long *last_written);
+extern int cdrom_number_of_slots(struct cdrom_device_info *cdi);
+extern int cdrom_select_disc(struct cdrom_device_info *cdi, int slot);
+extern int cdrom_mode_select(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc);
+extern int cdrom_mode_sense(struct cdrom_device_info *cdi,
+ struct cdrom_generic_command *cgc,
+ int page_code, int page_control);
+extern void init_cdrom_command(struct cdrom_generic_command *cgc,
+ void *buffer, int len, int type);
+extern struct cdrom_device_info *cdrom_find_device(kdev_t dev);
+
+typedef struct {
+ __u16 disc_information_length;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved1 : 3;
+ __u8 erasable : 1;
+ __u8 border_status : 2;
+ __u8 disc_status : 2;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 disc_status : 2;
+ __u8 border_status : 2;
+ __u8 erasable : 1;
+ __u8 reserved1 : 3;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+ __u8 n_first_track;
+ __u8 n_sessions_lsb;
+ __u8 first_track_lsb;
+ __u8 last_track_lsb;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 did_v : 1;
+ __u8 dbc_v : 1;
+ __u8 uru : 1;
+ __u8 reserved2 : 5;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 reserved2 : 5;
+ __u8 uru : 1;
+ __u8 dbc_v : 1;
+ __u8 did_v : 1;
+#endif
+ __u8 disc_type;
+ __u8 n_sessions_msb;
+ __u8 first_track_msb;
+ __u8 last_track_msb;
+ __u32 disc_id;
+ __u32 lead_in;
+ __u32 lead_out;
+ __u8 disc_bar_code[8];
+ __u8 reserved3;
+ __u8 n_opc;
+} disc_information;
+
+typedef struct {
+ __u16 track_information_length;
+ __u8 track_lsb;
+ __u8 session_lsb;
+ __u8 reserved1;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved2 : 2;
+ __u8 damage : 1;
+ __u8 copy : 1;
+ __u8 track_mode : 4;
+ __u8 rt : 1;
+ __u8 blank : 1;
+ __u8 packet : 1;
+ __u8 fp : 1;
+ __u8 data_mode : 4;
+ __u8 reserved3 : 6;
+ __u8 lra_v : 1;
+ __u8 nwa_v : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 track_mode : 4;
+ __u8 copy : 1;
+ __u8 damage : 1;
+ __u8 reserved2 : 2;
+ __u8 data_mode : 4;
+ __u8 fp : 1;
+ __u8 packet : 1;
+ __u8 blank : 1;
+ __u8 rt : 1;
+ __u8 nwa_v : 1;
+ __u8 lra_v : 1;
+ __u8 reserved3 : 6;
+#endif
+ __u32 track_start;
+ __u32 next_writable;
+ __u32 free_blocks;
+ __u32 fixed_packet_size;
+ __u32 track_size;
+ __u32 last_rec_address;
+} track_information;
+
+extern int cdrom_get_disc_info(kdev_t dev, disc_information *di);
+extern int cdrom_get_track_info(kdev_t dev, __u16 track, __u8 type,
+ track_information *ti);
+
+/* The SCSI spec says there could be 256 slots. */
+#define CDROM_MAX_SLOTS 256
+
+struct cdrom_mechstat_header {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 fault : 1;
+ __u8 changer_state : 2;
+ __u8 curslot : 5;
+ __u8 mech_state : 3;
+ __u8 door_open : 1;
+ __u8 reserved1 : 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 curslot : 5;
+ __u8 changer_state : 2;
+ __u8 fault : 1;
+ __u8 reserved1 : 4;
+ __u8 door_open : 1;
+ __u8 mech_state : 3;
+#endif
+ __u8 curlba[3];
+ __u8 nslots;
+ __u16 slot_tablelen;
+};
+
+struct cdrom_slot {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 disc_present : 1;
+ __u8 reserved1 : 6;
+ __u8 change : 1;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 change : 1;
+ __u8 reserved1 : 6;
+ __u8 disc_present : 1;
+#endif
+ __u8 reserved2[3];
+};
+
+struct cdrom_changer_info {
+ struct cdrom_mechstat_header hdr;
+ struct cdrom_slot slots[CDROM_MAX_SLOTS];
+};
+
+typedef enum {
+ mechtype_caddy = 0,
+ mechtype_tray = 1,
+ mechtype_popup = 2,
+ mechtype_individual_changer = 4,
+ mechtype_cartridge_changer = 5
+} mechtype_t;
+
+struct mode_page_header {
+ __u16 mode_data_length;
+ __u8 medium_type;
+ __u8 reserved1;
+ __u8 reserved2;
+ __u8 reserved3;
+ __u16 desc_length;
+};
+
+typedef struct {
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 ps : 1;
+ __u8 reserved1 : 1;
+ __u8 page_code : 6;
+ __u8 page_length;
+ __u8 reserved2 : 1;
+ __u8 bufe : 1;
+ __u8 ls_v : 1;
+ __u8 test_write : 1;
+ __u8 write_type : 4;
+ __u8 multi_session : 2; /* or border, DVD */
+ __u8 fp : 1;
+ __u8 copy : 1;
+ __u8 track_mode : 4;
+ __u8 reserved3 : 4;
+ __u8 data_block_type : 4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 page_code : 6;
+ __u8 reserved1 : 1;
+ __u8 ps : 1;
+ __u8 page_length;
+ __u8 write_type : 4;
+ __u8 test_write : 1;
+ __u8 ls_v : 1;
+ __u8 bufe : 1;
+ __u8 reserved2 : 1;
+ __u8 track_mode : 4;
+ __u8 copy : 1;
+ __u8 fp : 1;
+ __u8 multi_session : 2; /* or border, DVD */
+ __u8 data_block_type : 4;
+ __u8 reserved3 : 4;
+#endif
+ __u8 link_size;
+ __u8 reserved4;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 reserved5 : 2;
+ __u8 app_code : 6;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 app_code : 6;
+ __u8 reserved5 : 2;
+#endif
+ __u8 session_format;
+ __u8 reserved6;
+ __u32 packet_size;
+ __u16 audio_pause;
+ __u8 mcn[16];
+ __u8 isrc[16];
+ __u8 subhdr0;
+ __u8 subhdr1;
+ __u8 subhdr2;
+ __u8 subhdr3;
+} __attribute__((packed)) write_param_page;
+
+struct modesel_head
+{
+ __u8 reserved1;
+ __u8 medium;
+ __u8 reserved2;
+ __u8 block_desc_length;
+ __u8 density;
+ __u8 number_of_blocks_hi;
+ __u8 number_of_blocks_med;
+ __u8 number_of_blocks_lo;
+ __u8 reserved3;
+ __u8 block_length_hi;
+ __u8 block_length_med;
+ __u8 block_length_lo;
+};
+
+typedef struct {
+ __u16 report_key_length;
+ __u8 reserved1;
+ __u8 reserved2;
+#if defined(__BIG_ENDIAN_BITFIELD)
+ __u8 type_code : 2;
+ __u8 vra : 3;
+ __u8 ucca : 3;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8 ucca : 3;
+ __u8 vra : 3;
+ __u8 type_code : 2;
+#endif
+ __u8 region_mask;
+ __u8 rpc_scheme;
+ __u8 reserved3;
+} rpc_state_t;
+
+#endif /* End of kernel only stuff */
+
+#endif /* _LINUX_CDROM_H */
# CONFIG_CRAMFS is not set
# CONFIG_TMPFS is not set
# CONFIG_RAMFS is not set
-# CONFIG_ISO9660_FS is not set
+CONFIG_ISO9660_FS=y
# CONFIG_MINIX_FS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_NTFS_FS is not set
projects / xen.git / commitdiff