diff options
-rw-r--r-- | .rootkeys | 5 | ||||
-rw-r--r-- | xen/Rules.mk | 1 | ||||
-rw-r--r-- | xen/drivers/Makefile | 2 | ||||
-rw-r--r-- | xen/drivers/block/ll_rw_blk.c | 7 | ||||
-rw-r--r-- | xen/drivers/cdrom/Makefile | 7 | ||||
-rw-r--r-- | xen/drivers/cdrom/cdrom.c | 2665 | ||||
-rw-r--r-- | xen/drivers/ide/ide-cd.c | 3072 | ||||
-rw-r--r-- | xen/drivers/ide/ide-cd.h | 746 | ||||
-rw-r--r-- | xen/include/xeno/cdrom.h | 1067 | ||||
-rw-r--r-- | xenolinux-2.4.21-pre4-sparse/arch/xeno/defconfig | 2 |
10 files changed, 7573 insertions, 1 deletions
@@ -82,10 +82,14 @@ 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 @@ -276,6 +280,7 @@ 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 diff --git a/xen/Rules.mk b/xen/Rules.mk index d0feffd7f9..4e15dde1bf 100644 --- a/xen/Rules.mk +++ b/xen/Rules.mk @@ -19,6 +19,7 @@ ALL_OBJS += $(BASEDIR)/drivers/char/driver.o 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 diff --git a/xen/drivers/Makefile b/xen/drivers/Makefile index 4aa76a3f25..814ed909d8 100644 --- a/xen/drivers/Makefile +++ b/xen/drivers/Makefile @@ -4,6 +4,7 @@ default: $(MAKE) -C pci $(MAKE) -C net $(MAKE) -C block + $(MAKE) -C cdrom $(MAKE) -C ide $(MAKE) -C scsi @@ -12,5 +13,6 @@ clean: $(MAKE) -C pci clean $(MAKE) -C net clean $(MAKE) -C block clean + $(MAKE) -C cdrom clean $(MAKE) -C ide clean $(MAKE) -C scsi clean diff --git a/xen/drivers/block/ll_rw_blk.c b/xen/drivers/block/ll_rw_blk.c index 870b5cdb85..55fbdf3e79 100644 --- a/xen/drivers/block/ll_rw_blk.c +++ b/xen/drivers/block/ll_rw_blk.c @@ -40,7 +40,14 @@ #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 diff --git a/xen/drivers/cdrom/Makefile b/xen/drivers/cdrom/Makefile new file mode 100644 index 0000000000..729f949b73 --- /dev/null +++ b/xen/drivers/cdrom/Makefile @@ -0,0 +1,7 @@ + +include $(BASEDIR)/Rules.mk + +default: $(OBJS) + $(LD) -r -o driver.o $(OBJS) +clean: + rm -f *.o *~ core diff --git a/xen/drivers/cdrom/cdrom.c b/xen/drivers/cdrom/cdrom.c new file mode 100644 index 0000000000..8bf93cc5c7 --- /dev/null +++ b/xen/drivers/cdrom/cdrom.c @@ -0,0 +1,2665 @@ +/* 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"); diff --git a/xen/drivers/ide/ide-cd.c b/xen/drivers/ide/ide-cd.c new file mode 100644 index 0000000000..c851f0485b --- /dev/null +++ b/xen/drivers/ide/ide-cd.c @@ -0,0 +1,3072 @@ +/* + * 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"); diff --git a/xen/drivers/ide/ide-cd.h b/xen/drivers/ide/ide-cd.h new file mode 100644 index 0000000000..636e88b02d --- /dev/null +++ b/xen/drivers/ide/ide-cd.h @@ -0,0 +1,746 @@ +/* + * 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 */ diff --git a/xen/include/xeno/cdrom.h b/xen/include/xeno/cdrom.h new file mode 100644 index 0000000000..ecd4d0478a --- /dev/null +++ b/xen/include/xeno/cdrom.h @@ -0,0 +1,1067 @@ +/* + * -- <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 */ diff --git a/xenolinux-2.4.21-pre4-sparse/arch/xeno/defconfig b/xenolinux-2.4.21-pre4-sparse/arch/xeno/defconfig index 0059207429..383561043d 100644 --- a/xenolinux-2.4.21-pre4-sparse/arch/xeno/defconfig +++ b/xenolinux-2.4.21-pre4-sparse/arch/xeno/defconfig @@ -287,7 +287,7 @@ CONFIG_JBD=y # 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 |