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drivers/cdrom/cdrom.c
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/* linux/drivers/cdrom/cdrom.c |
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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> |
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-- New maintainer! As David A. van Leeuwen has been too busy to actively |
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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 lose the index part, however. -- Small modifications to accommodate 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 3.20 Dec 17, 2003 - Jens Axboe <axboe@suse.de> -- Various fixes and lots of cleanups not listed :-) -- Locking fixes -- Mt Rainier support -- DVD-RAM write open fixes Nov 5 2001, Aug 8 2002. Modified by Andy Polyakov <appro@fy.chalmers.se> to support MMC-3 compliant DVD+RW units. Modified by Nigel Kukard <nkukard@lbsd.net> - support DVD+RW 2.4.x patch by Andy Polyakov <appro@fy.chalmers.se> -------------------------------------------------------------------------*/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#define REVISION "Revision: 3.20" #define VERSION "Id: cdrom.c 3.20 2003/12/17" /* 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) */ |
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#include <linux/module.h> #include <linux/fs.h> |
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#include <linux/major.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/slab.h> #include <linux/cdrom.h> #include <linux/sysctl.h> #include <linux/proc_fs.h> #include <linux/blkpg.h> #include <linux/init.h> #include <linux/fcntl.h> #include <linux/blkdev.h> #include <linux/times.h> |
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#include <linux/uaccess.h> |
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#include <scsi/scsi_request.h> |
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/* used to tell the module to turn on full debugging messages */ |
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static bool debug; |
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/* default compatibility mode */ |
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static bool autoclose=1; static bool autoeject; static bool lockdoor = 1; |
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/* will we ever get to use this... sigh. */ |
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static bool check_media_type; |
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/* automatically restart mrw format */ |
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static bool mrw_format_restart = 1; |
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module_param(debug, bool, 0); module_param(autoclose, bool, 0); module_param(autoeject, bool, 0); module_param(lockdoor, bool, 0); module_param(check_media_type, bool, 0); module_param(mrw_format_restart, bool, 0); |
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static DEFINE_MUTEX(cdrom_mutex); |
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static const char *mrw_format_status[] = { "not mrw", "bgformat inactive", "bgformat active", "mrw complete", }; static const char *mrw_address_space[] = { "DMA", "GAA" }; |
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#if (ERRLOGMASK != CD_NOTHING) #define cd_dbg(type, fmt, ...) \ |
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do { \ if ((ERRLOGMASK & type) || debug == 1) \ |
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pr_debug(fmt, ##__VA_ARGS__); \ |
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} while (0) |
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#else |
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#define cd_dbg(type, fmt, ...) \ |
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do { \ if (0 && (ERRLOGMASK & type) || debug == 1) \ |
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pr_debug(fmt, ##__VA_ARGS__); \ |
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} while (0) |
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#endif |
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/* 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)) |
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/* * Another popular OS uses 7 seconds as the hard timeout for default * commands, so it is a good choice for us as well. */ #define CDROM_DEF_TIMEOUT (7 * HZ) |
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/* Not-exported routines. */ |
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static void cdrom_sysctl_register(void); |
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static LIST_HEAD(cdrom_list); |
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int cdrom_dummy_generic_packet(struct cdrom_device_info *cdi, struct packet_command *cgc) |
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{ if (cgc->sense) { cgc->sense->sense_key = 0x05; cgc->sense->asc = 0x20; cgc->sense->ascq = 0x00; } cgc->stat = -EIO; return -EIO; } |
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EXPORT_SYMBOL(cdrom_dummy_generic_packet); |
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static int cdrom_flush_cache(struct cdrom_device_info *cdi) |
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{ struct packet_command cgc; |
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init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); cgc.cmd[0] = GPCMD_FLUSH_CACHE; |
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cgc.timeout = 5 * 60 * HZ; |
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return cdi->ops->generic_packet(cdi, &cgc); |
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} |
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/* requires CD R/RW */ static int cdrom_get_disc_info(struct cdrom_device_info *cdi, disc_information *di) { |
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const struct cdrom_device_ops *cdo = cdi->ops; |
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struct packet_command cgc; int ret, buflen; /* 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; ret = cdo->generic_packet(cdi, &cgc); if (ret) return ret; /* not all drives have the same disc_info length, so requeue * packet with the length the drive tells us it can supply */ buflen = be16_to_cpu(di->disc_information_length) + sizeof(di->disc_information_length); if (buflen > sizeof(disc_information)) buflen = sizeof(disc_information); cgc.cmd[8] = cgc.buflen = buflen; ret = cdo->generic_packet(cdi, &cgc); if (ret) return ret; /* return actual fill size */ return buflen; } |
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/* 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) \ do { \ if (cdo->call == NULL) \ *change_capability &= ~(bits); \ } while (0) |
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/* * the first prototypes used 0x2c as the page code for the mrw mode page, * subsequently this was changed to 0x03. probe the one used by this drive */ static int cdrom_mrw_probe_pc(struct cdrom_device_info *cdi) { struct packet_command cgc; |
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char buffer[16]; |
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init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); |
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cgc.timeout = HZ; cgc.quiet = 1; if (!cdrom_mode_sense(cdi, &cgc, MRW_MODE_PC, 0)) { cdi->mrw_mode_page = MRW_MODE_PC; |
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return 0; |
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} else if (!cdrom_mode_sense(cdi, &cgc, MRW_MODE_PC_PRE1, 0)) { cdi->mrw_mode_page = MRW_MODE_PC_PRE1; |
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return 0; |
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} |
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return 1; |
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} static int cdrom_is_mrw(struct cdrom_device_info *cdi, int *write) { struct packet_command cgc; struct mrw_feature_desc *mfd; |
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unsigned char buffer[16]; |
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int ret; *write = 0; |
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init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); |
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cgc.cmd[0] = GPCMD_GET_CONFIGURATION; cgc.cmd[3] = CDF_MRW; |
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cgc.cmd[8] = sizeof(buffer); |
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cgc.quiet = 1; if ((ret = cdi->ops->generic_packet(cdi, &cgc))) |
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return ret; |
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mfd = (struct mrw_feature_desc *)&buffer[sizeof(struct feature_header)]; |
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if (be16_to_cpu(mfd->feature_code) != CDF_MRW) return 1; |
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*write = mfd->write; if ((ret = cdrom_mrw_probe_pc(cdi))) { *write = 0; |
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return ret; |
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} |
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return 0; |
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} static int cdrom_mrw_bgformat(struct cdrom_device_info *cdi, int cont) { struct packet_command cgc; |
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unsigned char buffer[12]; |
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int ret; |
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pr_info("%sstarting format ", cont ? "Re" : ""); |
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/* * FmtData bit set (bit 4), format type is 1 */ |
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init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_WRITE); |
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cgc.cmd[0] = GPCMD_FORMAT_UNIT; cgc.cmd[1] = (1 << 4) | 1; cgc.timeout = 5 * 60 * HZ; /* * 4 byte format list header, 8 byte format list descriptor */ buffer[1] = 1 << 1; buffer[3] = 8; /* * nr_blocks field */ buffer[4] = 0xff; buffer[5] = 0xff; buffer[6] = 0xff; buffer[7] = 0xff; buffer[8] = 0x24 << 2; buffer[11] = cont; ret = cdi->ops->generic_packet(cdi, &cgc); if (ret) |
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pr_info("bgformat failed "); |
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return ret; } static int cdrom_mrw_bgformat_susp(struct cdrom_device_info *cdi, int immed) { struct packet_command cgc; init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); cgc.cmd[0] = GPCMD_CLOSE_TRACK; /* * Session = 1, Track = 0 */ cgc.cmd[1] = !!immed; cgc.cmd[2] = 1 << 1; cgc.timeout = 5 * 60 * HZ; return cdi->ops->generic_packet(cdi, &cgc); } |
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static int cdrom_mrw_exit(struct cdrom_device_info *cdi) { disc_information di; int ret; ret = cdrom_get_disc_info(cdi, &di); if (ret < 0 || ret < (int)offsetof(typeof(di),disc_type)) return 1; ret = 0; if (di.mrw_status == CDM_MRW_BGFORMAT_ACTIVE) { |
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pr_info("issuing MRW background format suspend "); |
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ret = cdrom_mrw_bgformat_susp(cdi, 0); } |
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if (!ret && cdi->media_written) |
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ret = cdrom_flush_cache(cdi); return ret; } static int cdrom_mrw_set_lba_space(struct cdrom_device_info *cdi, int space) { struct packet_command cgc; struct mode_page_header *mph; |
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char buffer[16]; |
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int ret, offset, size; |
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init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); |
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cgc.buffer = buffer; cgc.buflen = sizeof(buffer); |
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ret = cdrom_mode_sense(cdi, &cgc, cdi->mrw_mode_page, 0); if (ret) |
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return ret; |
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mph = (struct mode_page_header *)buffer; |
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offset = be16_to_cpu(mph->desc_length); size = be16_to_cpu(mph->mode_data_length) + 2; buffer[offset + 3] = space; cgc.buflen = size; |
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ret = cdrom_mode_select(cdi, &cgc); if (ret) |
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return ret; |
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pr_info("%s: mrw address space %s selected ", cdi->name, mrw_address_space[space]); |
fce538475
|
571 |
return 0; |
1da177e4c
|
572 |
} |
40569c614
|
573 574 575 |
int register_cdrom(struct cdrom_device_info *cdi) { static char banner_printed; |
853fe1bf7
|
576 |
const struct cdrom_device_ops *cdo = cdi->ops; |
40569c614
|
577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 |
int *change_capability = (int *)&cdo->capability; /* hack */ cd_dbg(CD_OPEN, "entering register_cdrom "); if (cdo->open == NULL || cdo->release == NULL) return -EINVAL; if (!banner_printed) { pr_info("Uniform CD-ROM driver " REVISION " "); banner_printed = 1; cdrom_sysctl_register(); } ENSURE(drive_status, CDC_DRIVE_STATUS); if (cdo->check_events == NULL && cdo->media_changed == NULL) *change_capability = ~(CDC_MEDIA_CHANGED | CDC_SELECT_DISC); 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(generic_packet, CDC_GENERIC_PACKET); cdi->mc_flags = 0; |
40569c614
|
602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 |
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 (CDROM_CAN(CDC_MRW_W)) cdi->exit = cdrom_mrw_exit; if (cdi->disk) cdi->cdda_method = CDDA_BPC_FULL; else cdi->cdda_method = CDDA_OLD; |
853fe1bf7
|
620 |
WARN_ON(!cdo->generic_packet); |
40569c614
|
621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 |
cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" registered ", cdi->name); mutex_lock(&cdrom_mutex); list_add(&cdi->list, &cdrom_list); mutex_unlock(&cdrom_mutex); return 0; } #undef ENSURE void unregister_cdrom(struct cdrom_device_info *cdi) { cd_dbg(CD_OPEN, "entering unregister_cdrom "); mutex_lock(&cdrom_mutex); list_del(&cdi->list); mutex_unlock(&cdrom_mutex); if (cdi->exit) cdi->exit(cdi); |
40569c614
|
642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 |
cd_dbg(CD_REG_UNREG, "drive \"/dev/%s\" unregistered ", cdi->name); } int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med) { struct packet_command cgc; unsigned char buffer[8]; struct event_header *eh = (struct event_header *)buffer; init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); cgc.cmd[0] = GPCMD_GET_EVENT_STATUS_NOTIFICATION; cgc.cmd[1] = 1; /* IMMED */ cgc.cmd[4] = 1 << 4; /* media event */ cgc.cmd[8] = sizeof(buffer); cgc.quiet = 1; if (cdi->ops->generic_packet(cdi, &cgc)) return 1; if (be16_to_cpu(eh->data_len) < sizeof(*med)) return 1; if (eh->nea || eh->notification_class != 0x4) return 1; memcpy(med, &buffer[sizeof(*eh)], sizeof(*med)); return 0; } |
1da177e4c
|
672 673 674 675 |
static int cdrom_get_random_writable(struct cdrom_device_info *cdi, struct rwrt_feature_desc *rfd) { struct packet_command cgc; |
fce538475
|
676 |
char buffer[24]; |
1da177e4c
|
677 |
int ret; |
fce538475
|
678 |
init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); |
1da177e4c
|
679 680 681 |
cgc.cmd[0] = GPCMD_GET_CONFIGURATION; /* often 0x46 */ cgc.cmd[3] = CDF_RWRT; /* often 0x0020 */ |
fce538475
|
682 |
cgc.cmd[8] = sizeof(buffer); /* often 0x18 */ |
1da177e4c
|
683 684 685 |
cgc.quiet = 1; if ((ret = cdi->ops->generic_packet(cdi, &cgc))) |
fce538475
|
686 |
return ret; |
1da177e4c
|
687 688 |
memcpy(rfd, &buffer[sizeof(struct feature_header)], sizeof (*rfd)); |
fce538475
|
689 |
return 0; |
1da177e4c
|
690 691 692 693 694 |
} static int cdrom_has_defect_mgt(struct cdrom_device_info *cdi) { struct packet_command cgc; |
fce538475
|
695 |
char buffer[16]; |
56052d525
|
696 |
__be16 *feature_code; |
1da177e4c
|
697 |
int ret; |
fce538475
|
698 |
init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); |
1da177e4c
|
699 700 701 |
cgc.cmd[0] = GPCMD_GET_CONFIGURATION; cgc.cmd[3] = CDF_HWDM; |
fce538475
|
702 |
cgc.cmd[8] = sizeof(buffer); |
1da177e4c
|
703 704 705 |
cgc.quiet = 1; if ((ret = cdi->ops->generic_packet(cdi, &cgc))) |
fce538475
|
706 |
return ret; |
1da177e4c
|
707 |
|
56052d525
|
708 |
feature_code = (__be16 *) &buffer[sizeof(struct feature_header)]; |
1da177e4c
|
709 |
if (be16_to_cpu(*feature_code) == CDF_HWDM) |
fce538475
|
710 711 712 |
return 0; return 1; |
1da177e4c
|
713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 |
} static int cdrom_is_random_writable(struct cdrom_device_info *cdi, int *write) { struct rwrt_feature_desc rfd; int ret; *write = 0; if ((ret = cdrom_get_random_writable(cdi, &rfd))) return ret; if (CDF_RWRT == be16_to_cpu(rfd.feature_code)) *write = 1; return 0; } static int cdrom_media_erasable(struct cdrom_device_info *cdi) { disc_information di; int ret; ret = cdrom_get_disc_info(cdi, &di); if (ret < 0 || ret < offsetof(typeof(di), n_first_track)) return -1; return di.erasable; } /* * FIXME: check RO bit */ static int cdrom_dvdram_open_write(struct cdrom_device_info *cdi) { int ret = cdrom_media_erasable(cdi); /* * allow writable open if media info read worked and media is * erasable, _or_ if it fails since not all drives support it */ if (!ret) return 1; return 0; } static int cdrom_mrw_open_write(struct cdrom_device_info *cdi) { disc_information di; int ret; /* * always reset to DMA lba space on open */ if (cdrom_mrw_set_lba_space(cdi, MRW_LBA_DMA)) { |
e597cd09f
|
770 771 |
pr_err("failed setting lba address space "); |
1da177e4c
|
772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 |
return 1; } ret = cdrom_get_disc_info(cdi, &di); if (ret < 0 || ret < offsetof(typeof(di),disc_type)) return 1; if (!di.erasable) return 1; /* * mrw_status * 0 - not MRW formatted * 1 - MRW bgformat started, but not running or complete * 2 - MRW bgformat in progress * 3 - MRW formatting complete */ ret = 0; |
e597cd09f
|
790 791 |
pr_info("open: mrw_status '%s' ", mrw_format_status[di.mrw_status]); |
1da177e4c
|
792 793 794 795 796 797 798 799 800 801 802 803 |
if (!di.mrw_status) ret = 1; else if (di.mrw_status == CDM_MRW_BGFORMAT_INACTIVE && mrw_format_restart) ret = cdrom_mrw_bgformat(cdi, 1); return ret; } static int mo_open_write(struct cdrom_device_info *cdi) { struct packet_command cgc; |
fce538475
|
804 |
char buffer[255]; |
1da177e4c
|
805 |
int ret; |
fce538475
|
806 |
init_cdrom_command(&cgc, &buffer, 4, CGC_DATA_READ); |
1da177e4c
|
807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 |
cgc.quiet = 1; /* * obtain write protect information as per * drivers/scsi/sd.c:sd_read_write_protect_flag */ ret = cdrom_mode_sense(cdi, &cgc, GPMODE_ALL_PAGES, 0); if (ret) ret = cdrom_mode_sense(cdi, &cgc, GPMODE_VENDOR_PAGE, 0); if (ret) { cgc.buflen = 255; ret = cdrom_mode_sense(cdi, &cgc, GPMODE_ALL_PAGES, 0); } /* drive gave us no info, let the user go ahead */ |
fce538475
|
823 824 |
if (ret) return 0; |
1da177e4c
|
825 |
|
fce538475
|
826 |
return buffer[3] & 0x80; |
1da177e4c
|
827 828 829 830 831 832 833 834 835 836 837 838 839 840 |
} static int cdrom_ram_open_write(struct cdrom_device_info *cdi) { struct rwrt_feature_desc rfd; int ret; if ((ret = cdrom_has_defect_mgt(cdi))) return ret; if ((ret = cdrom_get_random_writable(cdi, &rfd))) return ret; else if (CDF_RWRT == be16_to_cpu(rfd.feature_code)) ret = !rfd.curr; |
5944b2ce5
|
841 842 |
cd_dbg(CD_OPEN, "can open for random write "); |
1da177e4c
|
843 844 845 846 847 848 |
return ret; } static void cdrom_mmc3_profile(struct cdrom_device_info *cdi) { struct packet_command cgc; |
fce538475
|
849 |
char buffer[32]; |
1da177e4c
|
850 |
int ret, mmc3_profile; |
fce538475
|
851 |
init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_READ); |
1da177e4c
|
852 853 854 855 |
cgc.cmd[0] = GPCMD_GET_CONFIGURATION; cgc.cmd[1] = 0; cgc.cmd[2] = cgc.cmd[3] = 0; /* Starting Feature Number */ |
fce538475
|
856 |
cgc.cmd[8] = sizeof(buffer); /* Allocation Length */ |
1da177e4c
|
857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 |
cgc.quiet = 1; if ((ret = cdi->ops->generic_packet(cdi, &cgc))) mmc3_profile = 0xffff; else mmc3_profile = (buffer[6] << 8) | buffer[7]; cdi->mmc3_profile = mmc3_profile; } static int cdrom_is_dvd_rw(struct cdrom_device_info *cdi) { switch (cdi->mmc3_profile) { case 0x12: /* DVD-RAM */ case 0x1A: /* DVD+RW */ |
f7e7868b4
|
872 |
case 0x43: /* BD-RE */ |
1da177e4c
|
873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 |
return 0; default: return 1; } } /* * returns 0 for ok to open write, non-0 to disallow */ static int cdrom_open_write(struct cdrom_device_info *cdi) { int mrw, mrw_write, ram_write; int ret = 1; mrw = 0; if (!cdrom_is_mrw(cdi, &mrw_write)) mrw = 1; if (CDROM_CAN(CDC_MO_DRIVE)) ram_write = 1; else (void) cdrom_is_random_writable(cdi, &ram_write); if (mrw) cdi->mask &= ~CDC_MRW; else cdi->mask |= CDC_MRW; if (mrw_write) cdi->mask &= ~CDC_MRW_W; else cdi->mask |= CDC_MRW_W; if (ram_write) cdi->mask &= ~CDC_RAM; else cdi->mask |= CDC_RAM; if (CDROM_CAN(CDC_MRW_W)) ret = cdrom_mrw_open_write(cdi); else if (CDROM_CAN(CDC_DVD_RAM)) ret = cdrom_dvdram_open_write(cdi); else if (CDROM_CAN(CDC_RAM) && !CDROM_CAN(CDC_CD_R|CDC_CD_RW|CDC_DVD|CDC_DVD_R|CDC_MRW|CDC_MO_DRIVE)) ret = cdrom_ram_open_write(cdi); else if (CDROM_CAN(CDC_MO_DRIVE)) ret = mo_open_write(cdi); else if (!cdrom_is_dvd_rw(cdi)) ret = 0; return ret; } static void cdrom_dvd_rw_close_write(struct cdrom_device_info *cdi) { struct packet_command cgc; if (cdi->mmc3_profile != 0x1a) { |
5944b2ce5
|
931 932 |
cd_dbg(CD_CLOSE, "%s: No DVD+RW ", cdi->name); |
1da177e4c
|
933 934 935 936 |
return; } if (!cdi->media_written) { |
5944b2ce5
|
937 938 |
cd_dbg(CD_CLOSE, "%s: DVD+RW media clean ", cdi->name); |
1da177e4c
|
939 940 |
return; } |
e597cd09f
|
941 942 |
pr_info("%s: dirty DVD+RW media, \"finalizing\" ", cdi->name); |
1da177e4c
|
943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 |
init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); cgc.cmd[0] = GPCMD_FLUSH_CACHE; cgc.timeout = 30*HZ; cdi->ops->generic_packet(cdi, &cgc); init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); cgc.cmd[0] = GPCMD_CLOSE_TRACK; cgc.timeout = 3000*HZ; cgc.quiet = 1; cdi->ops->generic_packet(cdi, &cgc); init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE); cgc.cmd[0] = GPCMD_CLOSE_TRACK; cgc.cmd[2] = 2; /* Close session */ cgc.quiet = 1; cgc.timeout = 3000*HZ; cdi->ops->generic_packet(cdi, &cgc); cdi->media_written = 0; } static int cdrom_close_write(struct cdrom_device_info *cdi) { #if 0 return cdrom_flush_cache(cdi); #else return 0; #endif } |
a803393bf
|
973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 |
/* badly broken, I know. Is due for a fixup anytime. */ static 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; cd_dbg(CD_COUNT_TRACKS, "entering cdrom_count_tracks "); /* Grab the TOC header so we can see how many tracks there are */ ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header); if (ret) { 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++; } cd_dbg(CD_COUNT_TRACKS, "track %d: format=%d, ctrl=%d ", i, entry.cdte_format, entry.cdte_ctrl); } cd_dbg(CD_COUNT_TRACKS, "disc has %d tracks: %d=audio %d=data %d=Cd-I %d=XA ", header.cdth_trk1, tracks->audio, tracks->data, tracks->cdi, tracks->xa); } |
1da177e4c
|
1022 |
static |
82b91540b
|
1023 |
int open_for_data(struct cdrom_device_info *cdi) |
1da177e4c
|
1024 1025 |
{ int ret; |
853fe1bf7
|
1026 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1027 |
tracktype tracks; |
5944b2ce5
|
1028 1029 |
cd_dbg(CD_OPEN, "entering open_for_data "); |
1da177e4c
|
1030 1031 1032 1033 |
/* 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); |
5944b2ce5
|
1034 1035 |
cd_dbg(CD_OPEN, "drive_status=%d ", ret); |
1da177e4c
|
1036 |
if (ret == CDS_TRAY_OPEN) { |
5944b2ce5
|
1037 1038 |
cd_dbg(CD_OPEN, "the tray is open... "); |
1da177e4c
|
1039 1040 1041 |
/* can/may i close it? */ if (CDROM_CAN(CDC_CLOSE_TRAY) && cdi->options & CDO_AUTO_CLOSE) { |
5944b2ce5
|
1042 1043 |
cd_dbg(CD_OPEN, "trying to close the tray "); |
1da177e4c
|
1044 1045 |
ret=cdo->tray_move(cdi,0); if (ret) { |
5944b2ce5
|
1046 1047 |
cd_dbg(CD_OPEN, "bummer. tried to close the tray but failed. "); |
1da177e4c
|
1048 1049 1050 1051 1052 1053 1054 1055 1056 |
/* 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 { |
5944b2ce5
|
1057 1058 |
cd_dbg(CD_OPEN, "bummer. this drive can't close the tray. "); |
1da177e4c
|
1059 1060 1061 1062 1063 1064 |
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)) { |
5944b2ce5
|
1065 1066 1067 1068 |
cd_dbg(CD_OPEN, "bummer. the tray is still not closed. "); cd_dbg(CD_OPEN, "tray might not contain a medium "); |
1da177e4c
|
1069 1070 1071 |
ret=-ENOMEDIUM; goto clean_up_and_return; } |
5944b2ce5
|
1072 1073 |
cd_dbg(CD_OPEN, "the tray is now closed "); |
1da177e4c
|
1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 |
} /* the door should be closed now, check for the disc */ ret = cdo->drive_status(cdi, CDSL_CURRENT); if (ret!=CDS_DISC_OK) { ret = -ENOMEDIUM; goto clean_up_and_return; } } cdrom_count_tracks(cdi, &tracks); if (tracks.error == CDS_NO_DISC) { |
5944b2ce5
|
1084 1085 |
cd_dbg(CD_OPEN, "bummer. no disc. "); |
1da177e4c
|
1086 1087 1088 1089 1090 1091 1092 1093 1094 |
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! */ |
5944b2ce5
|
1095 1096 1097 1098 1099 |
cd_dbg(CD_OPEN, "bummer. wrong media type. "); cd_dbg(CD_WARNING, "pid %d must open device O_NONBLOCK! ", (unsigned int)task_pid_nr(current)); |
1da177e4c
|
1100 1101 1102 1103 |
ret=-EMEDIUMTYPE; goto clean_up_and_return; } else { |
5944b2ce5
|
1104 1105 |
cd_dbg(CD_OPEN, "wrong media type, but CDO_CHECK_TYPE not set "); |
1da177e4c
|
1106 1107 |
} } |
5944b2ce5
|
1108 |
cd_dbg(CD_OPEN, "all seems well, opening the devicen"); |
1da177e4c
|
1109 1110 1111 |
/* all seems well, we can open the device */ ret = cdo->open(cdi, 0); /* open for data */ |
5944b2ce5
|
1112 1113 |
cd_dbg(CD_OPEN, "opening the device gave me %d ", ret); |
1da177e4c
|
1114 1115 1116 1117 |
/* 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) { |
5944b2ce5
|
1118 1119 |
cd_dbg(CD_OPEN, "open device failed "); |
1da177e4c
|
1120 1121 1122 1123 |
goto clean_up_and_return; } if (CDROM_CAN(CDC_LOCK) && (cdi->options & CDO_LOCK)) { cdo->lock_door(cdi, 1); |
5944b2ce5
|
1124 1125 |
cd_dbg(CD_OPEN, "door locked "); |
1da177e4c
|
1126 |
} |
5944b2ce5
|
1127 1128 |
cd_dbg(CD_OPEN, "device opened successfully "); |
1da177e4c
|
1129 1130 1131 1132 1133 1134 1135 1136 |
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: |
5944b2ce5
|
1137 1138 |
cd_dbg(CD_OPEN, "open failed "); |
1da177e4c
|
1139 1140 |
if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { cdo->lock_door(cdi, 0); |
5944b2ce5
|
1141 1142 |
cd_dbg(CD_OPEN, "door unlocked "); |
1da177e4c
|
1143 1144 1145 |
} return ret; } |
82b91540b
|
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 |
/* 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 cdrom_device_info *cdi, struct block_device *bdev, fmode_t mode) { int ret; cd_dbg(CD_OPEN, "entering cdrom_open "); |
82b91540b
|
1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 |
/* if this was a O_NONBLOCK open and we should honor the flags, * do a quick open without drive/disc integrity checks. */ cdi->use_count++; if ((mode & FMODE_NDELAY) && (cdi->options & CDO_USE_FFLAGS)) { ret = cdi->ops->open(cdi, 1); } else { ret = open_for_data(cdi); if (ret) goto err; cdrom_mmc3_profile(cdi); if (mode & FMODE_WRITE) { ret = -EROFS; if (cdrom_open_write(cdi)) goto err_release; if (!CDROM_CAN(CDC_RAM)) goto err_release; ret = 0; cdi->media_written = 0; } } if (ret) goto err; cd_dbg(CD_OPEN, "Use count for \"/dev/%s\" now %d ", cdi->name, cdi->use_count); return 0; err_release: if (CDROM_CAN(CDC_LOCK) && cdi->options & CDO_LOCK) { cdi->ops->lock_door(cdi, 0); cd_dbg(CD_OPEN, "door unlocked "); } cdi->ops->release(cdi); err: cdi->use_count--; return ret; } |
1da177e4c
|
1200 1201 1202 |
/* This code is similar to that in open_for_data. The routine is called whenever an audio play operation is requested. */ |
853fe1bf7
|
1203 1204 |
static int check_for_audio_disc(struct cdrom_device_info *cdi, const struct cdrom_device_ops *cdo) |
1da177e4c
|
1205 1206 1207 |
{ int ret; tracktype tracks; |
5944b2ce5
|
1208 1209 |
cd_dbg(CD_OPEN, "entering check_for_audio_disc "); |
1da177e4c
|
1210 1211 1212 1213 |
if (!(cdi->options & CDO_CHECK_TYPE)) return 0; if (cdo->drive_status != NULL) { ret = cdo->drive_status(cdi, CDSL_CURRENT); |
5944b2ce5
|
1214 1215 |
cd_dbg(CD_OPEN, "drive_status=%d ", ret); |
1da177e4c
|
1216 |
if (ret == CDS_TRAY_OPEN) { |
5944b2ce5
|
1217 1218 |
cd_dbg(CD_OPEN, "the tray is open... "); |
1da177e4c
|
1219 1220 1221 |
/* can/may i close it? */ if (CDROM_CAN(CDC_CLOSE_TRAY) && cdi->options & CDO_AUTO_CLOSE) { |
5944b2ce5
|
1222 1223 |
cd_dbg(CD_OPEN, "trying to close the tray "); |
1da177e4c
|
1224 1225 |
ret=cdo->tray_move(cdi,0); if (ret) { |
5944b2ce5
|
1226 1227 |
cd_dbg(CD_OPEN, "bummer. tried to close tray but failed. "); |
1da177e4c
|
1228 1229 1230 1231 1232 1233 1234 1235 |
/* 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 { |
5944b2ce5
|
1236 1237 |
cd_dbg(CD_OPEN, "bummer. this driver can't close the tray. "); |
1da177e4c
|
1238 1239 1240 1241 1242 |
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)) { |
5944b2ce5
|
1243 1244 |
cd_dbg(CD_OPEN, "bummer. the tray is still not closed. "); |
1da177e4c
|
1245 1246 1247 |
return -ENOMEDIUM; } if (ret!=CDS_DISC_OK) { |
5944b2ce5
|
1248 1249 |
cd_dbg(CD_OPEN, "bummer. disc isn't ready. "); |
1da177e4c
|
1250 1251 |
return -EIO; } |
5944b2ce5
|
1252 1253 |
cd_dbg(CD_OPEN, "the tray is now closed "); |
1da177e4c
|
1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 |
} } cdrom_count_tracks(cdi, &tracks); if (tracks.error) return(tracks.error); if (tracks.audio==0) return -EMEDIUMTYPE; return 0; } |
bbc1cc978
|
1265 |
void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode) |
1da177e4c
|
1266 |
{ |
853fe1bf7
|
1267 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1268 |
int opened_for_data; |
5944b2ce5
|
1269 1270 |
cd_dbg(CD_CLOSE, "entering cdrom_release "); |
1da177e4c
|
1271 1272 1273 |
if (cdi->use_count > 0) cdi->use_count--; |
35841f708
|
1274 1275 |
if (cdi->use_count == 0) { |
5944b2ce5
|
1276 1277 1278 |
cd_dbg(CD_CLOSE, "Use count for \"/dev/%s\" now zero ", cdi->name); |
1da177e4c
|
1279 |
cdrom_dvd_rw_close_write(cdi); |
35841f708
|
1280 |
|
cdccaa946
|
1281 |
if ((cdo->capability & CDC_LOCK) && !cdi->keeplocked) { |
5944b2ce5
|
1282 1283 |
cd_dbg(CD_CLOSE, "Unlocking door! "); |
35841f708
|
1284 1285 |
cdo->lock_door(cdi, 0); } |
1da177e4c
|
1286 |
} |
35841f708
|
1287 |
|
1da177e4c
|
1288 |
opened_for_data = !(cdi->options & CDO_USE_FFLAGS) || |
bbc1cc978
|
1289 |
!(mode & FMODE_NDELAY); |
1da177e4c
|
1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 |
/* * flush cache on last write release */ if (CDROM_CAN(CDC_RAM) && !cdi->use_count && cdi->for_data) cdrom_close_write(cdi); 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); } |
1da177e4c
|
1303 1304 1305 1306 1307 1308 |
} static int cdrom_read_mech_status(struct cdrom_device_info *cdi, struct cdrom_changer_info *buf) { struct packet_command cgc; |
853fe1bf7
|
1309 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 |
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; |
5944b2ce5
|
1341 1342 |
cd_dbg(CD_CHANGER, "entering cdrom_slot_status() "); |
1da177e4c
|
1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 |
if (cdi->sanyo_slot) return CDS_NO_INFO; info = kmalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; if ((ret = cdrom_read_mech_status(cdi, info))) goto out_free; if (info->slots[slot].disc_present) ret = CDS_DISC_OK; else ret = CDS_NO_DISC; out_free: kfree(info); return ret; } /* 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; |
5944b2ce5
|
1371 1372 |
cd_dbg(CD_CHANGER, "entering cdrom_number_of_slots() "); |
1da177e4c
|
1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 |
/* cdrom_read_mech_status requires a valid value for capacity: */ cdi->capacity = 0; info = kmalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; if ((status = cdrom_read_mech_status(cdi, info)) == 0) nslots = info->hdr.nslots; kfree(info); 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 packet_command cgc; |
5944b2ce5
|
1392 1393 |
cd_dbg(CD_CHANGER, "entering cdrom_load_unload() "); |
1da177e4c
|
1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 |
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; cgc.timeout = 60 * HZ; /* 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); } static int cdrom_select_disc(struct cdrom_device_info *cdi, int slot) { struct cdrom_changer_info *info; int curslot; int ret; |
5944b2ce5
|
1421 1422 |
cd_dbg(CD_CHANGER, "entering cdrom_select_disc() "); |
1da177e4c
|
1423 1424 |
if (!CDROM_CAN(CDC_SELECT_DISC)) return -EDRIVE_CANT_DO_THIS; |
2d9217296
|
1425 1426 1427 1428 |
if (cdi->ops->check_events) cdi->ops->check_events(cdi, 0, slot); else cdi->ops->media_changed(cdi, slot); |
1da177e4c
|
1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 |
if (slot == CDSL_NONE) { /* set media changed bits, on both queues */ cdi->mc_flags = 0x3; return cdrom_load_unload(cdi, -1); } info = kmalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; if ((ret = cdrom_read_mech_status(cdi, info))) { kfree(info); return ret; } curslot = info->hdr.curslot; kfree(info); |
cdccaa946
|
1447 |
if (cdi->use_count > 1 || cdi->keeplocked) { |
1da177e4c
|
1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 |
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; } |
2d9217296
|
1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 |
/* * As cdrom implements an extra ioctl consumer for media changed * event, it needs to buffer ->check_events() output, such that event * is not lost for both the usual VFS and ioctl paths. * cdi->{vfs|ioctl}_events are used to buffer pending events for each * path. * * XXX: Locking is non-existent. cdi->ops->check_events() can be * called in parallel and buffering fields are accessed without any * exclusion. The original media_changed code had the same problem. * It might be better to simply deprecate CDROM_MEDIA_CHANGED ioctl * and remove this cruft altogether. It doesn't have much usefulness * at this point. */ static void cdrom_update_events(struct cdrom_device_info *cdi, unsigned int clearing) { unsigned int events; events = cdi->ops->check_events(cdi, clearing, CDSL_CURRENT); cdi->vfs_events |= events; cdi->ioctl_events |= events; } unsigned int cdrom_check_events(struct cdrom_device_info *cdi, unsigned int clearing) { unsigned int events; cdrom_update_events(cdi, clearing); events = cdi->vfs_events; cdi->vfs_events = 0; return events; } |
30a7caabb
|
1504 |
EXPORT_SYMBOL(cdrom_check_events); |
2d9217296
|
1505 |
|
1da177e4c
|
1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 |
/* 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); |
2d9217296
|
1517 |
bool changed; |
1da177e4c
|
1518 1519 |
if (!CDROM_CAN(CDC_MEDIA_CHANGED)) |
2d9217296
|
1520 |
return ret; |
1da177e4c
|
1521 |
/* changed since last call? */ |
2d9217296
|
1522 1523 1524 1525 1526 1527 1528 1529 1530 |
if (cdi->ops->check_events) { BUG_ON(!queue); /* shouldn't be called from VFS path */ cdrom_update_events(cdi, DISK_EVENT_MEDIA_CHANGE); changed = cdi->ioctl_events & DISK_EVENT_MEDIA_CHANGE; cdi->ioctl_events = 0; } else changed = cdi->ops->media_changed(cdi, CDSL_CURRENT); if (changed) { |
1da177e4c
|
1531 1532 1533 1534 |
cdi->mc_flags = 0x3; /* set bit on both queues */ ret |= 1; cdi->media_written = 0; } |
2d9217296
|
1535 |
|
1da177e4c
|
1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 |
cdi->mc_flags &= ~mask; /* clear bit */ return ret; } int cdrom_media_changed(struct cdrom_device_info *cdi) { /* 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); } |
1da177e4c
|
1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 |
/* 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 packet_command *cgc, void *buf, int len, int type) { memset(cgc, 0, sizeof(struct packet_command)); if (buf) memset(buf, 0, len); cgc->buffer = (char *) buf; cgc->buflen = len; cgc->data_direction = type; |
2e11c207b
|
1596 |
cgc->timeout = CDROM_DEF_TIMEOUT; |
1da177e4c
|
1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 |
} /* 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 packet_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 packet_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; |
fce538475
|
1651 |
u_char buf[20]; |
1da177e4c
|
1652 |
struct packet_command cgc; |
853fe1bf7
|
1653 |
const struct cdrom_device_ops *cdo = cdi->ops; |
fce538475
|
1654 |
rpc_state_t rpc_state; |
1da177e4c
|
1655 |
|
fce538475
|
1656 |
memset(buf, 0, sizeof(buf)); |
1da177e4c
|
1657 1658 1659 1660 1661 |
init_cdrom_command(&cgc, buf, 0, CGC_DATA_READ); switch (ai->type) { /* LU data send */ case DVD_LU_SEND_AGID: |
5944b2ce5
|
1662 1663 |
cd_dbg(CD_DVD, "entering DVD_LU_SEND_AGID "); |
1da177e4c
|
1664 1665 1666 1667 |
cgc.quiet = 1; setup_report_key(&cgc, ai->lsa.agid, 0); if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1668 |
return ret; |
1da177e4c
|
1669 1670 1671 1672 1673 1674 |
ai->lsa.agid = buf[7] >> 6; /* Returning data, let host change state */ break; case DVD_LU_SEND_KEY1: |
5944b2ce5
|
1675 1676 |
cd_dbg(CD_DVD, "entering DVD_LU_SEND_KEY1 "); |
1da177e4c
|
1677 1678 1679 |
setup_report_key(&cgc, ai->lsk.agid, 2); if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1680 |
return ret; |
1da177e4c
|
1681 1682 1683 1684 1685 1686 |
copy_key(ai->lsk.key, &buf[4]); /* Returning data, let host change state */ break; case DVD_LU_SEND_CHALLENGE: |
5944b2ce5
|
1687 1688 |
cd_dbg(CD_DVD, "entering DVD_LU_SEND_CHALLENGE "); |
1da177e4c
|
1689 1690 1691 |
setup_report_key(&cgc, ai->lsc.agid, 1); if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1692 |
return ret; |
1da177e4c
|
1693 1694 1695 1696 1697 1698 1699 |
copy_chal(ai->lsc.chal, &buf[4]); /* Returning data, let host change state */ break; /* Post-auth key */ case DVD_LU_SEND_TITLE_KEY: |
5944b2ce5
|
1700 1701 |
cd_dbg(CD_DVD, "entering DVD_LU_SEND_TITLE_KEY "); |
1da177e4c
|
1702 1703 1704 1705 1706 1707 1708 1709 |
cgc.quiet = 1; 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))) |
fce538475
|
1710 |
return ret; |
1da177e4c
|
1711 1712 1713 1714 1715 1716 1717 1718 1719 |
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: |
5944b2ce5
|
1720 1721 |
cd_dbg(CD_DVD, "entering DVD_LU_SEND_ASF "); |
1da177e4c
|
1722 1723 1724 |
setup_report_key(&cgc, ai->lsasf.agid, 5); if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1725 |
return ret; |
1da177e4c
|
1726 1727 1728 1729 1730 1731 |
ai->lsasf.asf = buf[7] & 1; break; /* LU data receive (LU changes state) */ case DVD_HOST_SEND_CHALLENGE: |
5944b2ce5
|
1732 1733 |
cd_dbg(CD_DVD, "entering DVD_HOST_SEND_CHALLENGE "); |
1da177e4c
|
1734 1735 1736 1737 1738 |
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))) |
fce538475
|
1739 |
return ret; |
1da177e4c
|
1740 1741 1742 1743 1744 |
ai->type = DVD_LU_SEND_KEY1; break; case DVD_HOST_SEND_KEY2: |
5944b2ce5
|
1745 1746 |
cd_dbg(CD_DVD, "entering DVD_HOST_SEND_KEY2 "); |
1da177e4c
|
1747 1748 1749 1750 1751 1752 |
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; |
fce538475
|
1753 |
return ret; |
1da177e4c
|
1754 1755 1756 1757 1758 1759 1760 |
} ai->type = DVD_AUTH_ESTABLISHED; break; /* Misc */ case DVD_INVALIDATE_AGID: cgc.quiet = 1; |
5944b2ce5
|
1761 1762 |
cd_dbg(CD_DVD, "entering DVD_INVALIDATE_AGID "); |
1da177e4c
|
1763 1764 |
setup_report_key(&cgc, ai->lsa.agid, 0x3f); if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1765 |
return ret; |
1da177e4c
|
1766 1767 1768 1769 |
break; /* Get region settings */ case DVD_LU_SEND_RPC_STATE: |
5944b2ce5
|
1770 1771 |
cd_dbg(CD_DVD, "entering DVD_LU_SEND_RPC_STATE "); |
1da177e4c
|
1772 |
setup_report_key(&cgc, 0, 8); |
fce538475
|
1773 1774 |
memset(&rpc_state, 0, sizeof(rpc_state_t)); cgc.buffer = (char *) &rpc_state; |
1da177e4c
|
1775 1776 |
if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1777 |
return ret; |
1da177e4c
|
1778 |
|
fce538475
|
1779 1780 1781 1782 1783 |
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; |
1da177e4c
|
1784 1785 1786 1787 |
break; /* Set region settings */ case DVD_HOST_SEND_RPC_STATE: |
5944b2ce5
|
1788 1789 |
cd_dbg(CD_DVD, "entering DVD_HOST_SEND_RPC_STATE "); |
1da177e4c
|
1790 1791 1792 1793 1794 |
setup_send_key(&cgc, 0, 6); buf[1] = 6; buf[4] = ai->hrpcs.pdrc; if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
1795 |
return ret; |
1da177e4c
|
1796 1797 1798 |
break; default: |
5944b2ce5
|
1799 1800 |
cd_dbg(CD_WARNING, "Invalid DVD key ioctl (%d) ", ai->type); |
fce538475
|
1801 |
return -ENOTTY; |
1da177e4c
|
1802 |
} |
fce538475
|
1803 1804 |
return 0; |
1da177e4c
|
1805 |
} |
d194139c1
|
1806 1807 |
static int dvd_read_physical(struct cdrom_device_info *cdi, dvd_struct *s, struct packet_command *cgc) |
1da177e4c
|
1808 |
{ |
fce538475
|
1809 |
unsigned char buf[21], *base; |
1da177e4c
|
1810 |
struct dvd_layer *layer; |
853fe1bf7
|
1811 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1812 1813 1814 1815 |
int ret, layer_num = s->physical.layer_num; if (layer_num >= DVD_LAYERS) return -EINVAL; |
d194139c1
|
1816 1817 1818 1819 1820 |
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; |
1da177e4c
|
1821 1822 1823 1824 |
/* * refrain from reporting errors on non-existing layers (mainly) */ |
d194139c1
|
1825 |
cgc->quiet = 1; |
1da177e4c
|
1826 |
|
d194139c1
|
1827 1828 |
ret = cdo->generic_packet(cdi, cgc); if (ret) |
fce538475
|
1829 |
return ret; |
1da177e4c
|
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 |
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; |
fce538475
|
1852 |
return 0; |
1da177e4c
|
1853 |
} |
d194139c1
|
1854 1855 |
static int dvd_read_copyright(struct cdrom_device_info *cdi, dvd_struct *s, struct packet_command *cgc) |
1da177e4c
|
1856 1857 |
{ int ret; |
fce538475
|
1858 |
u_char buf[8]; |
853fe1bf7
|
1859 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1860 |
|
d194139c1
|
1861 1862 1863 1864 1865 1866 |
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; |
1da177e4c
|
1867 |
|
d194139c1
|
1868 1869 |
ret = cdo->generic_packet(cdi, cgc); if (ret) |
fce538475
|
1870 |
return ret; |
1da177e4c
|
1871 1872 1873 |
s->copyright.cpst = buf[4]; s->copyright.rmi = buf[5]; |
fce538475
|
1874 |
return 0; |
1da177e4c
|
1875 |
} |
d194139c1
|
1876 1877 |
static int dvd_read_disckey(struct cdrom_device_info *cdi, dvd_struct *s, struct packet_command *cgc) |
1da177e4c
|
1878 1879 1880 |
{ int ret, size; u_char *buf; |
853fe1bf7
|
1881 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1882 1883 |
size = sizeof(s->disckey.value) + 4; |
d194139c1
|
1884 1885 |
buf = kmalloc(size, GFP_KERNEL); if (!buf) |
1da177e4c
|
1886 |
return -ENOMEM; |
d194139c1
|
1887 1888 1889 1890 1891 1892 |
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; |
1da177e4c
|
1893 |
|
d194139c1
|
1894 1895 |
ret = cdo->generic_packet(cdi, cgc); if (!ret) |
1da177e4c
|
1896 1897 1898 1899 1900 |
memcpy(s->disckey.value, &buf[4], sizeof(s->disckey.value)); kfree(buf); return ret; } |
d194139c1
|
1901 1902 |
static int dvd_read_bca(struct cdrom_device_info *cdi, dvd_struct *s, struct packet_command *cgc) |
1da177e4c
|
1903 |
{ |
d194139c1
|
1904 1905 |
int ret, size = 4 + 188; u_char *buf; |
853fe1bf7
|
1906 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1907 |
|
d194139c1
|
1908 1909 1910 |
buf = kmalloc(size, GFP_KERNEL); if (!buf) return -ENOMEM; |
1da177e4c
|
1911 |
|
d194139c1
|
1912 1913 1914 1915 1916 1917 1918 1919 |
init_cdrom_command(cgc, buf, size, CGC_DATA_READ); cgc->cmd[0] = GPCMD_READ_DVD_STRUCTURE; cgc->cmd[7] = s->type; cgc->cmd[9] = cgc->buflen & 0xff; ret = cdo->generic_packet(cdi, cgc); if (ret) goto out; |
1da177e4c
|
1920 1921 1922 |
s->bca.len = buf[0] << 8 | buf[1]; if (s->bca.len < 12 || s->bca.len > 188) { |
5944b2ce5
|
1923 1924 1925 |
cd_dbg(CD_WARNING, "Received invalid BCA length (%d) ", s->bca.len); |
d194139c1
|
1926 1927 |
ret = -EIO; goto out; |
1da177e4c
|
1928 1929 |
} memcpy(s->bca.value, &buf[4], s->bca.len); |
d194139c1
|
1930 1931 1932 1933 |
ret = 0; out: kfree(buf); return ret; |
1da177e4c
|
1934 |
} |
d194139c1
|
1935 1936 |
static int dvd_read_manufact(struct cdrom_device_info *cdi, dvd_struct *s, struct packet_command *cgc) |
1da177e4c
|
1937 1938 1939 |
{ int ret = 0, size; u_char *buf; |
853fe1bf7
|
1940 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
1941 1942 |
size = sizeof(s->manufact.value) + 4; |
d194139c1
|
1943 1944 |
buf = kmalloc(size, GFP_KERNEL); if (!buf) |
1da177e4c
|
1945 |
return -ENOMEM; |
d194139c1
|
1946 1947 1948 1949 1950 |
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; |
1da177e4c
|
1951 |
|
d194139c1
|
1952 1953 1954 |
ret = cdo->generic_packet(cdi, cgc); if (ret) goto out; |
1da177e4c
|
1955 1956 |
s->manufact.len = buf[0] << 8 | buf[1]; |
aec9f377e
|
1957 |
if (s->manufact.len < 0) { |
5944b2ce5
|
1958 1959 1960 |
cd_dbg(CD_WARNING, "Received invalid manufacture info length (%d) ", s->manufact.len); |
1da177e4c
|
1961 1962 |
ret = -EIO; } else { |
aec9f377e
|
1963 |
if (s->manufact.len > 2048) { |
5944b2ce5
|
1964 1965 1966 |
cd_dbg(CD_WARNING, "Received invalid manufacture info length (%d): truncating to 2048 ", s->manufact.len); |
aec9f377e
|
1967 1968 |
s->manufact.len = 2048; } |
1da177e4c
|
1969 1970 |
memcpy(s->manufact.value, &buf[4], s->manufact.len); } |
d194139c1
|
1971 |
out: |
1da177e4c
|
1972 1973 1974 |
kfree(buf); return ret; } |
d194139c1
|
1975 1976 |
static int dvd_read_struct(struct cdrom_device_info *cdi, dvd_struct *s, struct packet_command *cgc) |
1da177e4c
|
1977 1978 1979 |
{ switch (s->type) { case DVD_STRUCT_PHYSICAL: |
d194139c1
|
1980 |
return dvd_read_physical(cdi, s, cgc); |
1da177e4c
|
1981 1982 |
case DVD_STRUCT_COPYRIGHT: |
d194139c1
|
1983 |
return dvd_read_copyright(cdi, s, cgc); |
1da177e4c
|
1984 1985 |
case DVD_STRUCT_DISCKEY: |
d194139c1
|
1986 |
return dvd_read_disckey(cdi, s, cgc); |
1da177e4c
|
1987 1988 |
case DVD_STRUCT_BCA: |
d194139c1
|
1989 |
return dvd_read_bca(cdi, s, cgc); |
1da177e4c
|
1990 1991 |
case DVD_STRUCT_MANUFACT: |
d194139c1
|
1992 |
return dvd_read_manufact(cdi, s, cgc); |
1da177e4c
|
1993 1994 |
default: |
5944b2ce5
|
1995 1996 1997 |
cd_dbg(CD_WARNING, ": Invalid DVD structure read requested (%d) ", s->type); |
1da177e4c
|
1998 1999 2000 2001 2002 2003 2004 2005 |
return -EINVAL; } } int cdrom_mode_sense(struct cdrom_device_info *cdi, struct packet_command *cgc, int page_code, int page_control) { |
853fe1bf7
|
2006 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 |
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 packet_command *cgc) { |
853fe1bf7
|
2021 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 |
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) { |
853fe1bf7
|
2036 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
2037 |
struct packet_command cgc; |
fce538475
|
2038 |
char buffer[32]; |
1da177e4c
|
2039 2040 2041 2042 |
int ret; init_cdrom_command(&cgc, buffer, 16, CGC_DATA_READ); cgc.cmd[0] = GPCMD_READ_SUBCHANNEL; |
bf294e833
|
2043 |
cgc.cmd[1] = subchnl->cdsc_format;/* MSF or LBA addressing */ |
1da177e4c
|
2044 2045 2046 2047 2048 |
cgc.cmd[2] = 0x40; /* request subQ data */ cgc.cmd[3] = mcn ? 2 : 1; cgc.cmd[8] = 16; if ((ret = cdo->generic_packet(cdi, &cgc))) |
fce538475
|
2049 |
return ret; |
1da177e4c
|
2050 2051 |
subchnl->cdsc_audiostatus = cgc.buffer[1]; |
1da177e4c
|
2052 2053 2054 |
subchnl->cdsc_ctrl = cgc.buffer[5] & 0xf; subchnl->cdsc_trk = cgc.buffer[6]; subchnl->cdsc_ind = cgc.buffer[7]; |
bf294e833
|
2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 |
if (subchnl->cdsc_format == CDROM_LBA) { subchnl->cdsc_absaddr.lba = ((cgc.buffer[8] << 24) | (cgc.buffer[9] << 16) | (cgc.buffer[10] << 8) | (cgc.buffer[11])); subchnl->cdsc_reladdr.lba = ((cgc.buffer[12] << 24) | (cgc.buffer[13] << 16) | (cgc.buffer[14] << 8) | (cgc.buffer[15])); } else { 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]; } |
1da177e4c
|
2072 |
|
fce538475
|
2073 |
return 0; |
1da177e4c
|
2074 2075 2076 2077 2078 2079 2080 2081 2082 |
} /* * Specific READ_10 interface */ static int cdrom_read_cd(struct cdrom_device_info *cdi, struct packet_command *cgc, int lba, int blocksize, int nblocks) { |
853fe1bf7
|
2083 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 |
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 packet_command *cgc, int lba, int nblocks, int format, int blksize) { |
853fe1bf7
|
2103 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 |
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); } static int cdrom_read_cdda_old(struct cdrom_device_info *cdi, __u8 __user *ubuf, int lba, int nframes) { struct packet_command cgc; int ret = 0; int nr; cdi->last_sense = 0; memset(&cgc, 0, sizeof(cgc)); /* * start with will ra.nframes size, back down if alloc fails */ nr = nframes; do { cgc.buffer = kmalloc(CD_FRAMESIZE_RAW * nr, GFP_KERNEL); if (cgc.buffer) break; nr >>= 1; } while (nr); if (!nr) return -ENOMEM; |
1da177e4c
|
2156 2157 2158 2159 2160 2161 2162 2163 |
cgc.data_direction = CGC_DATA_READ; while (nframes > 0) { if (nr > nframes) nr = nframes; ret = cdrom_read_block(cdi, &cgc, lba, nr, 1, CD_FRAMESIZE_RAW); if (ret) break; |
822bfa51c
|
2164 |
if (copy_to_user(ubuf, cgc.buffer, CD_FRAMESIZE_RAW * nr)) { |
1da177e4c
|
2165 2166 2167 2168 2169 2170 2171 |
ret = -EFAULT; break; } ubuf += CD_FRAMESIZE_RAW * nr; nframes -= nr; lba += nr; } |
1da177e4c
|
2172 2173 2174 2175 2176 2177 2178 |
kfree(cgc.buffer); return ret; } static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, int lba, int nframes) { |
165125e1e
|
2179 |
struct request_queue *q = cdi->disk->queue; |
1da177e4c
|
2180 |
struct request *rq; |
82ed4db49
|
2181 |
struct scsi_request *req; |
1da177e4c
|
2182 2183 2184 2185 2186 2187 |
struct bio *bio; unsigned int len; int nr, ret = 0; if (!q) return -ENXIO; |
73d17701d
|
2188 2189 2190 2191 2192 2193 |
if (!blk_queue_scsi_passthrough(q)) { WARN_ONCE(true, "Attempt read CDDA info through a non-SCSI queue "); return -EINVAL; } |
1da177e4c
|
2194 2195 2196 2197 2198 2199 |
cdi->last_sense = 0; while (nframes) { nr = nframes; if (cdi->cdda_method == CDDA_BPC_SINGLE) nr = 1; |
ae03bf639
|
2200 2201 |
if (nr * CD_FRAMESIZE_RAW > (queue_max_sectors(q) << 9)) nr = (queue_max_sectors(q) << 9) / CD_FRAMESIZE_RAW; |
1da177e4c
|
2202 2203 |
len = nr * CD_FRAMESIZE_RAW; |
aebf526b5
|
2204 |
rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); |
a492f0754
|
2205 2206 |
if (IS_ERR(rq)) { ret = PTR_ERR(rq); |
febd7a5c1
|
2207 2208 |
break; } |
82ed4db49
|
2209 |
req = scsi_req(rq); |
febd7a5c1
|
2210 |
|
152e283fd
|
2211 |
ret = blk_rq_map_user(q, rq, NULL, ubuf, len, GFP_KERNEL); |
febd7a5c1
|
2212 2213 |
if (ret) { blk_put_request(rq); |
dd1cab95f
|
2214 |
break; |
febd7a5c1
|
2215 |
} |
1da177e4c
|
2216 |
|
82ed4db49
|
2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 |
req->cmd[0] = GPCMD_READ_CD; req->cmd[1] = 1 << 2; req->cmd[2] = (lba >> 24) & 0xff; req->cmd[3] = (lba >> 16) & 0xff; req->cmd[4] = (lba >> 8) & 0xff; req->cmd[5] = lba & 0xff; req->cmd[6] = (nr >> 16) & 0xff; req->cmd[7] = (nr >> 8) & 0xff; req->cmd[8] = nr & 0xff; req->cmd[9] = 0xf8; req->cmd_len = 12; |
1da177e4c
|
2229 2230 |
rq->timeout = 60 * HZ; bio = rq->bio; |
b7819b925
|
2231 |
blk_execute_rq(q, cdi->disk, rq, 0); |
17d5363b8
|
2232 |
if (scsi_req(rq)->result) { |
82ed4db49
|
2233 |
struct request_sense *s = req->sense; |
1da177e4c
|
2234 2235 2236 |
ret = -EIO; cdi->last_sense = s->sense_key; } |
8e5cfc45e
|
2237 |
if (blk_rq_unmap_user(bio)) |
1da177e4c
|
2238 |
ret = -EFAULT; |
febd7a5c1
|
2239 |
blk_put_request(rq); |
1da177e4c
|
2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 |
if (ret) break; nframes -= nr; lba += nr; ubuf += len; } return ret; } static int cdrom_read_cdda(struct cdrom_device_info *cdi, __u8 __user *ubuf, int lba, int nframes) { int ret; if (cdi->cdda_method == CDDA_OLD) return cdrom_read_cdda_old(cdi, ubuf, lba, nframes); retry: /* * for anything else than success and io error, we need to retry */ ret = cdrom_read_cdda_bpc(cdi, ubuf, lba, nframes); if (!ret || ret != -EIO) return ret; /* * I've seen drives get sense 4/8/3 udma crc errors on multi * frame dma, so drop to single frame dma if we need to */ if (cdi->cdda_method == CDDA_BPC_FULL && nframes > 1) { |
e597cd09f
|
2273 2274 |
pr_info("dropping to single frame dma "); |
1da177e4c
|
2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 |
cdi->cdda_method = CDDA_BPC_SINGLE; goto retry; } /* * so we have an io error of some sort with multi frame dma. if the * condition wasn't a hardware error * problems, not for any error */ if (cdi->last_sense != 0x04 && cdi->last_sense != 0x0b) return ret; |
e597cd09f
|
2286 2287 |
pr_info("dropping to old style cdda (sense=%x) ", cdi->last_sense); |
1da177e4c
|
2288 2289 2290 |
cdi->cdda_method = CDDA_OLD; return cdrom_read_cdda_old(cdi, ubuf, lba, nframes); } |
d2c5d4fc0
|
2291 2292 |
static int cdrom_ioctl_multisession(struct cdrom_device_info *cdi, void __user *argp) |
1da177e4c
|
2293 |
{ |
d2c5d4fc0
|
2294 2295 |
struct cdrom_multisession ms_info; u8 requested_format; |
1da177e4c
|
2296 |
int ret; |
5944b2ce5
|
2297 2298 |
cd_dbg(CD_DO_IOCTL, "entering CDROMMULTISESSION "); |
d2c5d4fc0
|
2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 |
if (!(cdi->ops->capability & CDC_MULTI_SESSION)) return -ENOSYS; if (copy_from_user(&ms_info, argp, sizeof(ms_info))) return -EFAULT; requested_format = ms_info.addr_format; if (requested_format != CDROM_MSF && requested_format != CDROM_LBA) return -EINVAL; ms_info.addr_format = CDROM_LBA; ret = cdi->ops->get_last_session(cdi, &ms_info); if (ret) |
1da177e4c
|
2313 |
return ret; |
d2c5d4fc0
|
2314 2315 2316 2317 |
sanitize_format(&ms_info.addr, &ms_info.addr_format, requested_format); if (copy_to_user(argp, &ms_info, sizeof(ms_info))) return -EFAULT; |
5944b2ce5
|
2318 2319 |
cd_dbg(CD_DO_IOCTL, "CDROMMULTISESSION successful "); |
d2c5d4fc0
|
2320 2321 2322 2323 2324 |
return 0; } static int cdrom_ioctl_eject(struct cdrom_device_info *cdi) { |
5944b2ce5
|
2325 2326 |
cd_dbg(CD_DO_IOCTL, "entering CDROMEJECT "); |
d2c5d4fc0
|
2327 2328 2329 |
if (!CDROM_CAN(CDC_OPEN_TRAY)) return -ENOSYS; |
cdccaa946
|
2330 |
if (cdi->use_count != 1 || cdi->keeplocked) |
d2c5d4fc0
|
2331 2332 2333 2334 |
return -EBUSY; if (CDROM_CAN(CDC_LOCK)) { int ret = cdi->ops->lock_door(cdi, 0); if (ret) |
1da177e4c
|
2335 |
return ret; |
d2c5d4fc0
|
2336 |
} |
1da177e4c
|
2337 |
|
d2c5d4fc0
|
2338 2339 |
return cdi->ops->tray_move(cdi, 1); } |
1da177e4c
|
2340 |
|
d2c5d4fc0
|
2341 2342 |
static int cdrom_ioctl_closetray(struct cdrom_device_info *cdi) { |
5944b2ce5
|
2343 2344 |
cd_dbg(CD_DO_IOCTL, "entering CDROMCLOSETRAY "); |
1da177e4c
|
2345 |
|
d2c5d4fc0
|
2346 2347 2348 2349 |
if (!CDROM_CAN(CDC_CLOSE_TRAY)) return -ENOSYS; return cdi->ops->tray_move(cdi, 0); } |
1da177e4c
|
2350 |
|
d2c5d4fc0
|
2351 2352 2353 |
static int cdrom_ioctl_eject_sw(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2354 2355 |
cd_dbg(CD_DO_IOCTL, "entering CDROMEJECT_SW "); |
1da177e4c
|
2356 |
|
d2c5d4fc0
|
2357 2358 |
if (!CDROM_CAN(CDC_OPEN_TRAY)) return -ENOSYS; |
cdccaa946
|
2359 |
if (cdi->keeplocked) |
d2c5d4fc0
|
2360 |
return -EBUSY; |
1da177e4c
|
2361 |
|
d2c5d4fc0
|
2362 2363 2364 2365 2366 |
cdi->options &= ~(CDO_AUTO_CLOSE | CDO_AUTO_EJECT); if (arg) cdi->options |= CDO_AUTO_CLOSE | CDO_AUTO_EJECT; return 0; } |
1da177e4c
|
2367 |
|
d2c5d4fc0
|
2368 2369 2370 2371 2372 |
static int cdrom_ioctl_media_changed(struct cdrom_device_info *cdi, unsigned long arg) { struct cdrom_changer_info *info; int ret; |
1da177e4c
|
2373 |
|
5944b2ce5
|
2374 2375 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_MEDIA_CHANGED "); |
1da177e4c
|
2376 |
|
d2c5d4fc0
|
2377 2378 |
if (!CDROM_CAN(CDC_MEDIA_CHANGED)) return -ENOSYS; |
1da177e4c
|
2379 |
|
d2c5d4fc0
|
2380 2381 2382 |
/* cannot select disc or select current disc */ if (!CDROM_CAN(CDC_SELECT_DISC) || arg == CDSL_CURRENT) return media_changed(cdi, 1); |
1da177e4c
|
2383 |
|
68c09d548
|
2384 |
if (arg >= cdi->capacity) |
d2c5d4fc0
|
2385 |
return -EINVAL; |
1da177e4c
|
2386 |
|
d2c5d4fc0
|
2387 2388 2389 |
info = kmalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; |
1da177e4c
|
2390 |
|
d2c5d4fc0
|
2391 2392 2393 2394 2395 2396 |
ret = cdrom_read_mech_status(cdi, info); if (!ret) ret = info->slots[arg].change; kfree(info); return ret; } |
1da177e4c
|
2397 |
|
d2c5d4fc0
|
2398 2399 2400 |
static int cdrom_ioctl_set_options(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2401 2402 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_SET_OPTIONS "); |
1da177e4c
|
2403 |
|
d2c5d4fc0
|
2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 |
/* * 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)) |
1da177e4c
|
2421 |
return -ENOSYS; |
d2c5d4fc0
|
2422 2423 2424 2425 |
} cdi->options |= (int) arg; return cdi->options; } |
1da177e4c
|
2426 |
|
d2c5d4fc0
|
2427 2428 2429 |
static int cdrom_ioctl_clear_options(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2430 2431 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_CLEAR_OPTIONS "); |
1da177e4c
|
2432 |
|
d2c5d4fc0
|
2433 2434 2435 |
cdi->options &= ~(int) arg; return cdi->options; } |
1da177e4c
|
2436 |
|
d2c5d4fc0
|
2437 2438 2439 |
static int cdrom_ioctl_select_speed(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2440 2441 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_SELECT_SPEED "); |
1da177e4c
|
2442 |
|
d2c5d4fc0
|
2443 2444 2445 2446 |
if (!CDROM_CAN(CDC_SELECT_SPEED)) return -ENOSYS; return cdi->ops->select_speed(cdi, arg); } |
1da177e4c
|
2447 |
|
d2c5d4fc0
|
2448 2449 2450 |
static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2451 2452 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_SELECT_DISC "); |
d2c5d4fc0
|
2453 2454 2455 2456 2457 |
if (!CDROM_CAN(CDC_SELECT_DISC)) return -ENOSYS; if (arg != CDSL_CURRENT && arg != CDSL_NONE) { |
a8c254d8e
|
2458 |
if (arg >= cdi->capacity) |
d2c5d4fc0
|
2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 |
return -EINVAL; } /* * ->select_disc is a hook to allow a driver-specific way of * seleting disc. However, since there is no equivalent hook for * cdrom_slot_status this may not actually be useful... */ if (cdi->ops->select_disc) return cdi->ops->select_disc(cdi, arg); |
5944b2ce5
|
2469 2470 |
cd_dbg(CD_CHANGER, "Using generic cdrom_select_disc() "); |
d2c5d4fc0
|
2471 2472 2473 2474 2475 2476 |
return cdrom_select_disc(cdi, arg); } static int cdrom_ioctl_reset(struct cdrom_device_info *cdi, struct block_device *bdev) { |
5944b2ce5
|
2477 2478 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_RESET "); |
d2c5d4fc0
|
2479 2480 2481 2482 2483 |
if (!capable(CAP_SYS_ADMIN)) return -EACCES; if (!CDROM_CAN(CDC_RESET)) return -ENOSYS; |
f98393a64
|
2484 |
invalidate_bdev(bdev); |
d2c5d4fc0
|
2485 2486 2487 2488 2489 2490 |
return cdi->ops->reset(cdi); } static int cdrom_ioctl_lock_door(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2491 2492 |
cd_dbg(CD_DO_IOCTL, "%socking door ", arg ? "L" : "Unl"); |
d2c5d4fc0
|
2493 2494 2495 |
if (!CDROM_CAN(CDC_LOCK)) return -EDRIVE_CANT_DO_THIS; |
cdccaa946
|
2496 |
cdi->keeplocked = arg ? 1 : 0; |
d2c5d4fc0
|
2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 |
/* * Don't unlock the door on multiple opens by default, but allow * root to do so. */ if (cdi->use_count != 1 && !arg && !capable(CAP_SYS_ADMIN)) return -EBUSY; return cdi->ops->lock_door(cdi, arg); } static int cdrom_ioctl_debug(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2510 2511 |
cd_dbg(CD_DO_IOCTL, "%sabling debug ", arg ? "En" : "Dis"); |
d2c5d4fc0
|
2512 2513 2514 2515 2516 2517 |
if (!capable(CAP_SYS_ADMIN)) return -EACCES; debug = arg ? 1 : 0; return debug; } |
1da177e4c
|
2518 |
|
d2c5d4fc0
|
2519 2520 |
static int cdrom_ioctl_get_capability(struct cdrom_device_info *cdi) { |
5944b2ce5
|
2521 2522 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_GET_CAPABILITY "); |
d2c5d4fc0
|
2523 2524 2525 2526 2527 |
return (cdi->ops->capability & ~cdi->mask); } /* * The following function is implemented, although very few audio |
1da177e4c
|
2528 2529 2530 2531 |
* 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! */ |
d2c5d4fc0
|
2532 2533 2534 2535 2536 |
static int cdrom_ioctl_get_mcn(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_mcn mcn; int ret; |
1da177e4c
|
2537 |
|
5944b2ce5
|
2538 2539 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_GET_MCN "); |
1da177e4c
|
2540 |
|
d2c5d4fc0
|
2541 2542 2543 2544 2545 |
if (!(cdi->ops->capability & CDC_MCN)) return -ENOSYS; ret = cdi->ops->get_mcn(cdi, &mcn); if (ret) return ret; |
1da177e4c
|
2546 |
|
d2c5d4fc0
|
2547 2548 |
if (copy_to_user(argp, &mcn, sizeof(mcn))) return -EFAULT; |
5944b2ce5
|
2549 2550 |
cd_dbg(CD_DO_IOCTL, "CDROM_GET_MCN successful "); |
d2c5d4fc0
|
2551 2552 |
return 0; } |
1da177e4c
|
2553 |
|
d2c5d4fc0
|
2554 2555 2556 |
static int cdrom_ioctl_drive_status(struct cdrom_device_info *cdi, unsigned long arg) { |
5944b2ce5
|
2557 2558 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_DRIVE_STATUS "); |
d2c5d4fc0
|
2559 2560 2561 2562 2563 2564 |
if (!(cdi->ops->capability & CDC_DRIVE_STATUS)) return -ENOSYS; if (!CDROM_CAN(CDC_SELECT_DISC) || (arg == CDSL_CURRENT || arg == CDSL_NONE)) return cdi->ops->drive_status(cdi, CDSL_CURRENT); |
73b2e7073
|
2565 |
if (arg >= cdi->capacity) |
d2c5d4fc0
|
2566 2567 2568 2569 2570 2571 2572 |
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 |
25985edce
|
2573 |
* CDs are all CDS_DATA_1 or all CDS_AUDIO, etc. Unfortunately, while this |
d2c5d4fc0
|
2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 |
* 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 */ static int cdrom_ioctl_disc_status(struct cdrom_device_info *cdi) { tracktype tracks; |
5944b2ce5
|
2590 2591 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_DISC_STATUS "); |
d2c5d4fc0
|
2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 |
cdrom_count_tracks(cdi, &tracks); if (tracks.error) return tracks.error; /* Policy mode on */ if (tracks.audio > 0) { if (!tracks.data && !tracks.cdi && !tracks.xa) return CDS_AUDIO; else return CDS_MIXED; |
1da177e4c
|
2603 |
} |
d2c5d4fc0
|
2604 2605 2606 2607 2608 2609 2610 |
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 */ |
5944b2ce5
|
2611 2612 |
cd_dbg(CD_WARNING, "This disc doesn't have any tracks I recognize! "); |
d2c5d4fc0
|
2613 2614 2615 2616 2617 |
return CDS_NO_INFO; } static int cdrom_ioctl_changer_nslots(struct cdrom_device_info *cdi) { |
5944b2ce5
|
2618 2619 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_CHANGER_NSLOTS "); |
d2c5d4fc0
|
2620 2621 2622 2623 2624 2625 2626 2627 2628 |
return cdi->capacity; } static int cdrom_ioctl_get_subchnl(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_subchnl q; u8 requested, back; int ret; |
5944b2ce5
|
2629 2630 |
/* cd_dbg(CD_DO_IOCTL,"entering CDROMSUBCHNL ");*/ |
d2c5d4fc0
|
2631 |
|
d2c5d4fc0
|
2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 |
if (copy_from_user(&q, argp, sizeof(q))) return -EFAULT; requested = q.cdsc_format; if (requested != CDROM_MSF && requested != CDROM_LBA) return -EINVAL; q.cdsc_format = CDROM_MSF; ret = cdi->ops->audio_ioctl(cdi, CDROMSUBCHNL, &q); if (ret) return ret; back = q.cdsc_format; /* local copy */ sanitize_format(&q.cdsc_absaddr, &back, requested); sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested); if (copy_to_user(argp, &q, sizeof(q))) return -EFAULT; |
5944b2ce5
|
2650 2651 |
/* cd_dbg(CD_DO_IOCTL, "CDROMSUBCHNL successful "); */ |
d2c5d4fc0
|
2652 2653 2654 2655 2656 2657 2658 2659 |
return 0; } static int cdrom_ioctl_read_tochdr(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_tochdr header; int ret; |
5944b2ce5
|
2660 2661 |
/* cd_dbg(CD_DO_IOCTL, "entering CDROMREADTOCHDR "); */ |
d2c5d4fc0
|
2662 |
|
d2c5d4fc0
|
2663 2664 2665 2666 2667 2668 2669 2670 2671 |
if (copy_from_user(&header, argp, sizeof(header))) return -EFAULT; ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCHDR, &header); if (ret) return ret; if (copy_to_user(argp, &header, sizeof(header))) return -EFAULT; |
5944b2ce5
|
2672 2673 |
/* cd_dbg(CD_DO_IOCTL, "CDROMREADTOCHDR successful "); */ |
d2c5d4fc0
|
2674 2675 2676 2677 2678 2679 2680 2681 2682 |
return 0; } static int cdrom_ioctl_read_tocentry(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_tocentry entry; u8 requested_format; int ret; |
5944b2ce5
|
2683 2684 |
/* cd_dbg(CD_DO_IOCTL, "entering CDROMREADTOCENTRY "); */ |
d2c5d4fc0
|
2685 |
|
d2c5d4fc0
|
2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 |
if (copy_from_user(&entry, argp, sizeof(entry))) return -EFAULT; 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; ret = cdi->ops->audio_ioctl(cdi, CDROMREADTOCENTRY, &entry); if (ret) return ret; sanitize_format(&entry.cdte_addr, &entry.cdte_format, requested_format); if (copy_to_user(argp, &entry, sizeof(entry))) return -EFAULT; |
5944b2ce5
|
2701 2702 |
/* cd_dbg(CD_DO_IOCTL, "CDROMREADTOCENTRY successful "); */ |
d2c5d4fc0
|
2703 2704 2705 2706 2707 2708 2709 |
return 0; } static int cdrom_ioctl_play_msf(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_msf msf; |
5944b2ce5
|
2710 2711 |
cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYMSF "); |
d2c5d4fc0
|
2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 |
if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; if (copy_from_user(&msf, argp, sizeof(msf))) return -EFAULT; return cdi->ops->audio_ioctl(cdi, CDROMPLAYMSF, &msf); } static int cdrom_ioctl_play_trkind(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_ti ti; int ret; |
5944b2ce5
|
2725 2726 |
cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYTRKIND "); |
d2c5d4fc0
|
2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 |
if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; if (copy_from_user(&ti, argp, sizeof(ti))) return -EFAULT; ret = check_for_audio_disc(cdi, cdi->ops); if (ret) return ret; return cdi->ops->audio_ioctl(cdi, CDROMPLAYTRKIND, &ti); } static int cdrom_ioctl_volctrl(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_volctrl volume; |
5944b2ce5
|
2742 2743 |
cd_dbg(CD_DO_IOCTL, "entering CDROMVOLCTRL "); |
d2c5d4fc0
|
2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 |
if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; if (copy_from_user(&volume, argp, sizeof(volume))) return -EFAULT; return cdi->ops->audio_ioctl(cdi, CDROMVOLCTRL, &volume); } static int cdrom_ioctl_volread(struct cdrom_device_info *cdi, void __user *argp) { struct cdrom_volctrl volume; int ret; |
5944b2ce5
|
2757 2758 |
cd_dbg(CD_DO_IOCTL, "entering CDROMVOLREAD "); |
d2c5d4fc0
|
2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 |
if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; ret = cdi->ops->audio_ioctl(cdi, CDROMVOLREAD, &volume); if (ret) return ret; if (copy_to_user(argp, &volume, sizeof(volume))) return -EFAULT; return 0; } static int cdrom_ioctl_audioctl(struct cdrom_device_info *cdi, unsigned int cmd) { int ret; |
5944b2ce5
|
2776 2777 |
cd_dbg(CD_DO_IOCTL, "doing audio ioctl (start/stop/pause/resume) "); |
d2c5d4fc0
|
2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 |
if (!CDROM_CAN(CDC_PLAY_AUDIO)) return -ENOSYS; ret = check_for_audio_disc(cdi, cdi->ops); if (ret) return ret; return cdi->ops->audio_ioctl(cdi, cmd, NULL); } /* |
1da177e4c
|
2788 2789 2790 2791 2792 |
* 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) { |
853fe1bf7
|
2793 |
const struct cdrom_device_ops *cdo = cdi->ops; |
1da177e4c
|
2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 |
struct packet_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); } |
e1e60fda4
|
2815 2816 2817 |
static int cdrom_get_track_info(struct cdrom_device_info *cdi, __u16 track, __u8 type, track_information *ti) { |
853fe1bf7
|
2818 |
const struct cdrom_device_ops *cdo = cdi->ops; |
e1e60fda4
|
2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 |
struct packet_command cgc; int ret, buflen; 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; ret = cdo->generic_packet(cdi, &cgc); if (ret) return ret; buflen = be16_to_cpu(ti->track_information_length) + sizeof(ti->track_information_length); if (buflen > sizeof(track_information)) buflen = sizeof(track_information); cgc.cmd[8] = cgc.buflen = buflen; ret = cdo->generic_packet(cdi, &cgc); if (ret) return ret; /* return actual fill size */ return buflen; } /* return the last written block on the CD-R media. this is for the udf file system. */ int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written) { struct cdrom_tocentry toc; disc_information di; track_information ti; __u32 last_track; int ret = -1, ti_size; if (!CDROM_CAN(CDC_GENERIC_PACKET)) goto use_toc; ret = cdrom_get_disc_info(cdi, &di); if (ret < (int)(offsetof(typeof(di), last_track_lsb) + sizeof(di.last_track_lsb))) goto use_toc; /* if unit didn't return msb, it's zeroed by cdrom_get_disc_info */ last_track = (di.last_track_msb << 8) | di.last_track_lsb; ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); if (ti_size < (int)offsetof(typeof(ti), track_start)) goto use_toc; /* if this track is blank, try the previous. */ if (ti.blank) { if (last_track == 1) goto use_toc; last_track--; ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); } if (ti_size < (int)(offsetof(typeof(ti), track_size) + sizeof(ti.track_size))) goto use_toc; /* if last recorded field is valid, return it. */ if (ti.lra_v && ti_size >= (int)(offsetof(typeof(ti), last_rec_address) + sizeof(ti.last_rec_address))) { *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 doesn't give enough information or fails. then we return the toc contents. */ use_toc: toc.cdte_format = CDROM_MSF; toc.cdte_track = CDROM_LEADOUT; if ((ret = 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; } |
dac1c5cf4
|
2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 |
/* return the next writable block. also for udf file system. */ static int cdrom_get_next_writable(struct cdrom_device_info *cdi, long *next_writable) { disc_information di; track_information ti; __u16 last_track; int ret, ti_size; if (!CDROM_CAN(CDC_GENERIC_PACKET)) goto use_last_written; ret = cdrom_get_disc_info(cdi, &di); if (ret < 0 || ret < offsetof(typeof(di), last_track_lsb) + sizeof(di.last_track_lsb)) goto use_last_written; /* if unit didn't return msb, it's zeroed by cdrom_get_disc_info */ last_track = (di.last_track_msb << 8) | di.last_track_lsb; ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); if (ti_size < 0 || ti_size < offsetof(typeof(ti), track_start)) goto use_last_written; /* if this track is blank, try the previous. */ if (ti.blank) { if (last_track == 1) goto use_last_written; last_track--; ti_size = cdrom_get_track_info(cdi, last_track, 1, &ti); if (ti_size < 0) goto use_last_written; } /* if next recordable address field is valid, use it. */ if (ti.nwa_v && ti_size >= offsetof(typeof(ti), next_writable) + sizeof(ti.next_writable)) { *next_writable = be32_to_cpu(ti.next_writable); return 0; } use_last_written: ret = cdrom_get_last_written(cdi, next_writable); if (ret) { *next_writable = 0; return ret; } else { *next_writable += 7; return 0; } } |
3147c531b
|
2961 |
static noinline int mmc_ioctl_cdrom_read_data(struct cdrom_device_info *cdi, |
2e9aa08a4
|
2962 2963 2964 |
void __user *arg, struct packet_command *cgc, int cmd) |
3147c531b
|
2965 |
{ |
1da177e4c
|
2966 |
struct request_sense sense; |
3147c531b
|
2967 2968 2969 |
struct cdrom_msf msf; int blocksize = 0, format = 0, lba; int ret; |
1da177e4c
|
2970 |
|
1da177e4c
|
2971 2972 |
switch (cmd) { case CDROMREADRAW: |
3147c531b
|
2973 2974 |
blocksize = CD_FRAMESIZE_RAW; break; |
1da177e4c
|
2975 |
case CDROMREADMODE1: |
3147c531b
|
2976 2977 2978 2979 2980 2981 2982 |
blocksize = CD_FRAMESIZE; format = 2; break; case CDROMREADMODE2: blocksize = CD_FRAMESIZE_RAW0; break; } |
a09c391df
|
2983 2984 |
if (copy_from_user(&msf, (struct cdrom_msf __user *)arg, sizeof(msf))) return -EFAULT; |
3147c531b
|
2985 2986 2987 2988 |
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; |
542db0157
|
2989 |
cgc->buffer = kzalloc(blocksize, GFP_KERNEL); |
3147c531b
|
2990 2991 2992 2993 2994 2995 2996 2997 |
if (cgc->buffer == NULL) return -ENOMEM; memset(&sense, 0, sizeof(sense)); cgc->sense = &sense; cgc->data_direction = CGC_DATA_READ; ret = cdrom_read_block(cdi, cgc, lba, 1, format, blocksize); if (ret && sense.sense_key == 0x05 && |
2e9aa08a4
|
2998 2999 |
sense.asc == 0x20 && sense.ascq == 0x00) { |
3147c531b
|
3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 |
/* * SCSI-II devices are not required to support * READ_CD, so let's try switching block size */ /* FIXME: switch back again... */ ret = cdrom_switch_blocksize(cdi, blocksize); if (ret) goto out; cgc->sense = NULL; ret = cdrom_read_cd(cdi, cgc, lba, blocksize, 1); ret |= cdrom_switch_blocksize(cdi, blocksize); } if (!ret && copy_to_user(arg, cgc->buffer, blocksize)) ret = -EFAULT; out: kfree(cgc->buffer); return ret; } static noinline int mmc_ioctl_cdrom_read_audio(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3020 |
void __user *arg) |
3147c531b
|
3021 3022 3023 |
{ struct cdrom_read_audio ra; int lba; |
a09c391df
|
3024 3025 3026 |
if (copy_from_user(&ra, (struct cdrom_read_audio __user *)arg, sizeof(ra))) return -EFAULT; |
3147c531b
|
3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 |
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 || ra.nframes > CD_FRAMES) return -EINVAL; return cdrom_read_cdda(cdi, ra.buf, lba, ra.nframes); } static noinline int mmc_ioctl_cdrom_subchannel(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3045 |
void __user *arg) |
3147c531b
|
3046 3047 3048 3049 |
{ int ret; struct cdrom_subchnl q; u_char requested, back; |
a09c391df
|
3050 3051 |
if (copy_from_user(&q, (struct cdrom_subchnl __user *)arg, sizeof(q))) return -EFAULT; |
3147c531b
|
3052 3053 3054 3055 |
requested = q.cdsc_format; if (!((requested == CDROM_MSF) || (requested == CDROM_LBA))) return -EINVAL; |
bf294e833
|
3056 |
|
3147c531b
|
3057 3058 |
ret = cdrom_read_subchannel(cdi, &q, 0); if (ret) |
1da177e4c
|
3059 |
return ret; |
3147c531b
|
3060 3061 3062 |
back = q.cdsc_format; /* local copy */ sanitize_format(&q.cdsc_absaddr, &back, requested); sanitize_format(&q.cdsc_reladdr, &q.cdsc_format, requested); |
a09c391df
|
3063 3064 |
if (copy_to_user((struct cdrom_subchnl __user *)arg, &q, sizeof(q))) return -EFAULT; |
5944b2ce5
|
3065 3066 |
/* cd_dbg(CD_DO_IOCTL, "CDROMSUBCHNL successful "); */ |
3147c531b
|
3067 3068 |
return 0; } |
1da177e4c
|
3069 |
|
3147c531b
|
3070 |
static noinline int mmc_ioctl_cdrom_play_msf(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3071 3072 |
void __user *arg, struct packet_command *cgc) |
3147c531b
|
3073 |
{ |
853fe1bf7
|
3074 |
const struct cdrom_device_ops *cdo = cdi->ops; |
3147c531b
|
3075 |
struct cdrom_msf msf; |
5944b2ce5
|
3076 3077 |
cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYMSF "); |
a09c391df
|
3078 3079 |
if (copy_from_user(&msf, (struct cdrom_msf __user *)arg, sizeof(msf))) return -EFAULT; |
3147c531b
|
3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 |
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); } |
1da177e4c
|
3090 |
|
3147c531b
|
3091 |
static noinline int mmc_ioctl_cdrom_play_blk(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3092 3093 |
void __user *arg, struct packet_command *cgc) |
3147c531b
|
3094 |
{ |
853fe1bf7
|
3095 |
const struct cdrom_device_ops *cdo = cdi->ops; |
3147c531b
|
3096 |
struct cdrom_blk blk; |
5944b2ce5
|
3097 3098 |
cd_dbg(CD_DO_IOCTL, "entering CDROMPLAYBLK "); |
a09c391df
|
3099 3100 |
if (copy_from_user(&blk, (struct cdrom_blk __user *)arg, sizeof(blk))) return -EFAULT; |
3147c531b
|
3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 |
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); } |
1da177e4c
|
3111 |
|
3147c531b
|
3112 |
static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3113 3114 3115 |
void __user *arg, struct packet_command *cgc, unsigned int cmd) |
3147c531b
|
3116 3117 3118 3119 3120 3121 |
{ struct cdrom_volctrl volctrl; unsigned char buffer[32]; char mask[sizeof(buffer)]; unsigned short offset; int ret; |
5944b2ce5
|
3122 3123 |
cd_dbg(CD_DO_IOCTL, "entering CDROMVOLUME "); |
1da177e4c
|
3124 |
|
a09c391df
|
3125 3126 3127 |
if (copy_from_user(&volctrl, (struct cdrom_volctrl __user *)arg, sizeof(volctrl))) return -EFAULT; |
1da177e4c
|
3128 |
|
3147c531b
|
3129 3130 3131 3132 3133 |
cgc->buffer = buffer; cgc->buflen = 24; ret = cdrom_mode_sense(cdi, cgc, GPMODE_AUDIO_CTL_PAGE, 0); if (ret) return ret; |
1da177e4c
|
3134 |
|
3147c531b
|
3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 |
/* originally the code depended on buffer[1] to determine how much data is available for transfer. buffer[1] is unfortunately ambigious and the only reliable way seem to be to simply skip over the block descriptor... */ offset = 8 + be16_to_cpu(*(__be16 *)(buffer + 6)); if (offset + 16 > sizeof(buffer)) return -E2BIG; if (offset + 16 > cgc->buflen) { cgc->buflen = offset + 16; ret = cdrom_mode_sense(cdi, cgc, |
2e9aa08a4
|
3147 |
GPMODE_AUDIO_CTL_PAGE, 0); |
3147c531b
|
3148 3149 3150 |
if (ret) return ret; } |
1da177e4c
|
3151 |
|
3147c531b
|
3152 3153 |
/* sanity check */ if ((buffer[offset] & 0x3f) != GPMODE_AUDIO_CTL_PAGE || |
2e9aa08a4
|
3154 |
buffer[offset + 1] < 14) |
3147c531b
|
3155 |
return -EINVAL; |
1da177e4c
|
3156 |
|
3147c531b
|
3157 3158 3159 3160 3161 3162 3163 |
/* 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]; |
a09c391df
|
3164 3165 3166 |
if (copy_to_user((struct cdrom_volctrl __user *)arg, &volctrl, sizeof(volctrl))) return -EFAULT; |
3147c531b
|
3167 3168 |
return 0; } |
1da177e4c
|
3169 |
|
3147c531b
|
3170 3171 3172 3173 3174 |
/* get the volume mask */ cgc->buffer = mask; ret = cdrom_mode_sense(cdi, cgc, GPMODE_AUDIO_CTL_PAGE, 1); if (ret) return ret; |
1da177e4c
|
3175 |
|
3147c531b
|
3176 3177 3178 3179 |
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]; |
1da177e4c
|
3180 |
|
3147c531b
|
3181 3182 3183 3184 3185 |
/* set volume */ cgc->buffer = buffer + offset - 8; memset(cgc->buffer, 0, 8); return cdrom_mode_select(cdi, cgc); } |
1da177e4c
|
3186 |
|
3147c531b
|
3187 |
static noinline int mmc_ioctl_cdrom_start_stop(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3188 3189 |
struct packet_command *cgc, int cmd) |
3147c531b
|
3190 |
{ |
853fe1bf7
|
3191 |
const struct cdrom_device_ops *cdo = cdi->ops; |
5944b2ce5
|
3192 3193 |
cd_dbg(CD_DO_IOCTL, "entering CDROMSTART/CDROMSTOP "); |
3147c531b
|
3194 3195 3196 3197 3198 3199 |
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); } |
1da177e4c
|
3200 |
|
3147c531b
|
3201 |
static noinline int mmc_ioctl_cdrom_pause_resume(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3202 3203 |
struct packet_command *cgc, int cmd) |
3147c531b
|
3204 |
{ |
853fe1bf7
|
3205 |
const struct cdrom_device_ops *cdo = cdi->ops; |
5944b2ce5
|
3206 3207 |
cd_dbg(CD_DO_IOCTL, "entering CDROMPAUSE/CDROMRESUME "); |
3147c531b
|
3208 3209 3210 3211 3212 |
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); } |
1da177e4c
|
3213 |
|
3147c531b
|
3214 |
static noinline int mmc_ioctl_dvd_read_struct(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3215 3216 |
void __user *arg, struct packet_command *cgc) |
3147c531b
|
3217 3218 3219 3220 3221 3222 3223 |
{ int ret; dvd_struct *s; int size = sizeof(dvd_struct); if (!CDROM_CAN(CDC_DVD)) return -ENOSYS; |
abb0f6a79
|
3224 3225 3226 |
s = memdup_user(arg, size); if (IS_ERR(s)) return PTR_ERR(s); |
3147c531b
|
3227 |
|
5944b2ce5
|
3228 3229 |
cd_dbg(CD_DO_IOCTL, "entering DVD_READ_STRUCT "); |
3147c531b
|
3230 |
|
d194139c1
|
3231 |
ret = dvd_read_struct(cdi, s, cgc); |
3147c531b
|
3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 |
if (ret) goto out; if (copy_to_user(arg, s, size)) ret = -EFAULT; out: kfree(s); return ret; } static noinline int mmc_ioctl_dvd_auth(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3243 |
void __user *arg) |
3147c531b
|
3244 3245 3246 3247 3248 |
{ int ret; dvd_authinfo ai; if (!CDROM_CAN(CDC_DVD)) return -ENOSYS; |
5944b2ce5
|
3249 3250 |
cd_dbg(CD_DO_IOCTL, "entering DVD_AUTH "); |
a09c391df
|
3251 3252 |
if (copy_from_user(&ai, (dvd_authinfo __user *)arg, sizeof(ai))) return -EFAULT; |
3147c531b
|
3253 3254 |
ret = dvd_do_auth(cdi, &ai); if (ret) |
1da177e4c
|
3255 |
return ret; |
a09c391df
|
3256 3257 |
if (copy_to_user((dvd_authinfo __user *)arg, &ai, sizeof(ai))) return -EFAULT; |
3147c531b
|
3258 3259 |
return 0; } |
1da177e4c
|
3260 |
|
3147c531b
|
3261 |
static noinline int mmc_ioctl_cdrom_next_writable(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3262 |
void __user *arg) |
3147c531b
|
3263 3264 3265 |
{ int ret; long next = 0; |
5944b2ce5
|
3266 3267 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_NEXT_WRITABLE "); |
3147c531b
|
3268 3269 3270 |
ret = cdrom_get_next_writable(cdi, &next); if (ret) return ret; |
a09c391df
|
3271 3272 |
if (copy_to_user((long __user *)arg, &next, sizeof(next))) return -EFAULT; |
3147c531b
|
3273 3274 |
return 0; } |
1da177e4c
|
3275 |
|
3147c531b
|
3276 |
static noinline int mmc_ioctl_cdrom_last_written(struct cdrom_device_info *cdi, |
2e9aa08a4
|
3277 |
void __user *arg) |
3147c531b
|
3278 3279 3280 |
{ int ret; long last = 0; |
5944b2ce5
|
3281 3282 |
cd_dbg(CD_DO_IOCTL, "entering CDROM_LAST_WRITTEN "); |
3147c531b
|
3283 3284 3285 |
ret = cdrom_get_last_written(cdi, &last); if (ret) return ret; |
a09c391df
|
3286 3287 |
if (copy_to_user((long __user *)arg, &last, sizeof(last))) return -EFAULT; |
3147c531b
|
3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 |
return 0; } static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd, unsigned long arg) { struct packet_command cgc; void __user *userptr = (void __user *)arg; memset(&cgc, 0, sizeof(cgc)); /* build a unified command and queue it through cdo->generic_packet() */ switch (cmd) { case CDROMREADRAW: case CDROMREADMODE1: case CDROMREADMODE2: return mmc_ioctl_cdrom_read_data(cdi, userptr, &cgc, cmd); case CDROMREADAUDIO: return mmc_ioctl_cdrom_read_audio(cdi, userptr); case CDROMSUBCHNL: return mmc_ioctl_cdrom_subchannel(cdi, userptr); case CDROMPLAYMSF: return mmc_ioctl_cdrom_play_msf(cdi, userptr, &cgc); case CDROMPLAYBLK: return mmc_ioctl_cdrom_play_blk(cdi, userptr, &cgc); case CDROMVOLCTRL: case CDROMVOLREAD: return mmc_ioctl_cdrom_volume(cdi, userptr, &cgc, cmd); case CDROMSTART: case CDROMSTOP: return mmc_ioctl_cdrom_start_stop(cdi, &cgc, cmd); case CDROMPAUSE: case CDROMRESUME: return mmc_ioctl_cdrom_pause_resume(cdi, &cgc, cmd); case DVD_READ_STRUCT: |
d194139c1
|
3324 |
return mmc_ioctl_dvd_read_struct(cdi, userptr, &cgc); |
3147c531b
|
3325 3326 3327 3328 3329 3330 3331 |
case DVD_AUTH: return mmc_ioctl_dvd_auth(cdi, userptr); case CDROM_NEXT_WRITABLE: return mmc_ioctl_cdrom_next_writable(cdi, userptr); case CDROM_LAST_WRITTEN: return mmc_ioctl_cdrom_last_written(cdi, userptr); } |
1da177e4c
|
3332 3333 3334 |
return -ENOTTY; } |
2e9aa08a4
|
3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 |
/* * Just about every imaginable ioctl is supported in the Uniform layer * these days. * ATAPI / SCSI specific code now mainly resides in mmc_ioctl(). */ int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg) { void __user *argp = (void __user *)arg; int ret; /* * Try the generic SCSI command ioctl's first. */ ret = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp); if (ret != -ENOTTY) return ret; switch (cmd) { case CDROMMULTISESSION: return cdrom_ioctl_multisession(cdi, argp); case CDROMEJECT: return cdrom_ioctl_eject(cdi); case CDROMCLOSETRAY: return cdrom_ioctl_closetray(cdi); case CDROMEJECT_SW: return cdrom_ioctl_eject_sw(cdi, arg); case CDROM_MEDIA_CHANGED: return cdrom_ioctl_media_changed(cdi, arg); case CDROM_SET_OPTIONS: return cdrom_ioctl_set_options(cdi, arg); case CDROM_CLEAR_OPTIONS: return cdrom_ioctl_clear_options(cdi, arg); case CDROM_SELECT_SPEED: return cdrom_ioctl_select_speed(cdi, arg); case CDROM_SELECT_DISC: return cdrom_ioctl_select_disc(cdi, arg); case CDROMRESET: return cdrom_ioctl_reset(cdi, bdev); case CDROM_LOCKDOOR: return cdrom_ioctl_lock_door(cdi, arg); case CDROM_DEBUG: return cdrom_ioctl_debug(cdi, arg); case CDROM_GET_CAPABILITY: return cdrom_ioctl_get_capability(cdi); case CDROM_GET_MCN: return cdrom_ioctl_get_mcn(cdi, argp); case CDROM_DRIVE_STATUS: return cdrom_ioctl_drive_status(cdi, arg); case CDROM_DISC_STATUS: return cdrom_ioctl_disc_status(cdi); case CDROM_CHANGER_NSLOTS: return cdrom_ioctl_changer_nslots(cdi); } /* * 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 cd_dbg() calls are commented out here, * because they fill up the sys log when CD players poll * the drive. */ switch (cmd) { case CDROMSUBCHNL: return cdrom_ioctl_get_subchnl(cdi, argp); case CDROMREADTOCHDR: return cdrom_ioctl_read_tochdr(cdi, argp); case CDROMREADTOCENTRY: return cdrom_ioctl_read_tocentry(cdi, argp); case CDROMPLAYMSF: return cdrom_ioctl_play_msf(cdi, argp); case CDROMPLAYTRKIND: return cdrom_ioctl_play_trkind(cdi, argp); case CDROMVOLCTRL: return cdrom_ioctl_volctrl(cdi, argp); case CDROMVOLREAD: return cdrom_ioctl_volread(cdi, argp); case CDROMSTART: case CDROMSTOP: case CDROMPAUSE: case CDROMRESUME: return cdrom_ioctl_audioctl(cdi, cmd); } return -ENOSYS; } |
1da177e4c
|
3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 |
EXPORT_SYMBOL(cdrom_get_last_written); 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_mode_select); EXPORT_SYMBOL(cdrom_mode_sense); EXPORT_SYMBOL(init_cdrom_command); EXPORT_SYMBOL(cdrom_get_media_event); #ifdef CONFIG_SYSCTL #define CDROM_STR_SIZE 1000 static 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; |
554988d6f
|
3456 3457 3458 3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469 3470 3471 3472 3473 3474 |
enum cdrom_print_option { CTL_NAME, CTL_SPEED, CTL_SLOTS, CTL_CAPABILITY }; static int cdrom_print_info(const char *header, int val, char *info, int *pos, enum cdrom_print_option option) { const int max_size = sizeof(cdrom_sysctl_settings.info); struct cdrom_device_info *cdi; int ret; ret = scnprintf(info + *pos, max_size - *pos, header); if (!ret) return 1; *pos += ret; |
7fd097d42
|
3475 |
list_for_each_entry(cdi, &cdrom_list, list) { |
554988d6f
|
3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 |
switch (option) { case CTL_NAME: ret = scnprintf(info + *pos, max_size - *pos, "\t%s", cdi->name); break; case CTL_SPEED: ret = scnprintf(info + *pos, max_size - *pos, "\t%d", cdi->speed); break; case CTL_SLOTS: ret = scnprintf(info + *pos, max_size - *pos, "\t%d", cdi->capacity); break; case CTL_CAPABILITY: ret = scnprintf(info + *pos, max_size - *pos, "\t%d", CDROM_CAN(val) != 0); break; default: |
e597cd09f
|
3494 3495 |
pr_info("invalid option%d ", option); |
554988d6f
|
3496 3497 3498 3499 3500 3501 3502 3503 3504 |
return 1; } if (!ret) return 1; *pos += ret; } return 0; } |
90a3b89e0
|
3505 |
static int cdrom_sysctl_info(struct ctl_table *ctl, int write, |
1da177e4c
|
3506 3507 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
554988d6f
|
3508 |
int pos; |
1da177e4c
|
3509 |
char *info = cdrom_sysctl_settings.info; |
554988d6f
|
3510 |
const int max_size = sizeof(cdrom_sysctl_settings.info); |
1da177e4c
|
3511 3512 3513 3514 3515 |
if (!*lenp || (*ppos && !write)) { *lenp = 0; return 0; } |
554988d6f
|
3516 |
mutex_lock(&cdrom_mutex); |
1da177e4c
|
3517 3518 3519 |
pos = sprintf(info, "CD-ROM information, " VERSION " "); |
554988d6f
|
3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 |
if (cdrom_print_info(" drive name:\t", 0, info, &pos, CTL_NAME)) goto done; if (cdrom_print_info(" drive speed:\t", 0, info, &pos, CTL_SPEED)) goto done; if (cdrom_print_info(" drive # of slots:", 0, info, &pos, CTL_SLOTS)) goto done; if (cdrom_print_info(" Can close tray:\t", CDC_CLOSE_TRAY, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can open tray:\t", CDC_OPEN_TRAY, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can lock tray:\t", CDC_LOCK, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can change speed:", CDC_SELECT_SPEED, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can select disk:", CDC_SELECT_DISC, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can read multisession:", CDC_MULTI_SESSION, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can read MCN:\t", CDC_MCN, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Reports media changed:", CDC_MEDIA_CHANGED, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can play audio:\t", CDC_PLAY_AUDIO, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can write CD-R:\t", CDC_CD_R, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can write CD-RW:", CDC_CD_RW, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can read DVD:\t", CDC_DVD, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can write DVD-R:", CDC_DVD_R, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can write DVD-RAM:", CDC_DVD_RAM, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can read MRW:\t", CDC_MRW, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can write MRW:\t", CDC_MRW_W, info, &pos, CTL_CAPABILITY)) goto done; if (cdrom_print_info(" Can write RAM:\t", CDC_RAM, info, &pos, CTL_CAPABILITY)) goto done; if (!scnprintf(info + pos, max_size - pos, " ")) goto done; doit: mutex_unlock(&cdrom_mutex); |
8d65af789
|
3603 |
return proc_dostring(ctl, write, buffer, lenp, ppos); |
554988d6f
|
3604 |
done: |
e597cd09f
|
3605 3606 |
pr_info("info buffer too small "); |
554988d6f
|
3607 |
goto doit; |
1da177e4c
|
3608 3609 3610 3611 3612 3613 3614 3615 3616 |
} /* 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. */ static void cdrom_update_settings(void) { struct cdrom_device_info *cdi; |
032d8d90b
|
3617 |
mutex_lock(&cdrom_mutex); |
7fd097d42
|
3618 |
list_for_each_entry(cdi, &cdrom_list, list) { |
1da177e4c
|
3619 3620 3621 3622 3623 3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 |
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; } |
032d8d90b
|
3636 |
mutex_unlock(&cdrom_mutex); |
1da177e4c
|
3637 |
} |
90a3b89e0
|
3638 |
static int cdrom_sysctl_handler(struct ctl_table *ctl, int write, |
1da177e4c
|
3639 3640 |
void __user *buffer, size_t *lenp, loff_t *ppos) { |
1da177e4c
|
3641 3642 |
int ret; |
8d65af789
|
3643 |
ret = proc_dointvec(ctl, write, buffer, lenp, ppos); |
1da177e4c
|
3644 |
|
06489b4ee
|
3645 |
if (write) { |
1da177e4c
|
3646 3647 |
/* we only care for 1 or 0. */ |
06489b4ee
|
3648 3649 3650 3651 3652 |
autoclose = !!cdrom_sysctl_settings.autoclose; autoeject = !!cdrom_sysctl_settings.autoeject; debug = !!cdrom_sysctl_settings.debug; lockdoor = !!cdrom_sysctl_settings.lock; check_media_type = !!cdrom_sysctl_settings.check; |
1da177e4c
|
3653 |
|
1da177e4c
|
3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 |
/* 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 */ |
90a3b89e0
|
3664 |
static struct ctl_table cdrom_table[] = { |
1da177e4c
|
3665 |
{ |
1da177e4c
|
3666 3667 3668 3669 |
.procname = "info", .data = &cdrom_sysctl_settings.info, .maxlen = CDROM_STR_SIZE, .mode = 0444, |
6d4561110
|
3670 |
.proc_handler = cdrom_sysctl_info, |
1da177e4c
|
3671 3672 |
}, { |
1da177e4c
|
3673 3674 3675 3676 |
.procname = "autoclose", .data = &cdrom_sysctl_settings.autoclose, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
3677 |
.proc_handler = cdrom_sysctl_handler, |
1da177e4c
|
3678 3679 |
}, { |
1da177e4c
|
3680 3681 3682 3683 |
.procname = "autoeject", .data = &cdrom_sysctl_settings.autoeject, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
3684 |
.proc_handler = cdrom_sysctl_handler, |
1da177e4c
|
3685 3686 |
}, { |
1da177e4c
|
3687 3688 3689 3690 |
.procname = "debug", .data = &cdrom_sysctl_settings.debug, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
3691 |
.proc_handler = cdrom_sysctl_handler, |
1da177e4c
|
3692 3693 |
}, { |
1da177e4c
|
3694 3695 3696 3697 |
.procname = "lock", .data = &cdrom_sysctl_settings.lock, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
3698 |
.proc_handler = cdrom_sysctl_handler, |
1da177e4c
|
3699 3700 |
}, { |
1da177e4c
|
3701 3702 3703 3704 |
.procname = "check_media", .data = &cdrom_sysctl_settings.check, .maxlen = sizeof(int), .mode = 0644, |
6d4561110
|
3705 |
.proc_handler = cdrom_sysctl_handler |
1da177e4c
|
3706 |
}, |
894d24911
|
3707 |
{ } |
1da177e4c
|
3708 |
}; |
90a3b89e0
|
3709 |
static struct ctl_table cdrom_cdrom_table[] = { |
1da177e4c
|
3710 |
{ |
1da177e4c
|
3711 3712 3713 3714 3715 |
.procname = "cdrom", .maxlen = 0, .mode = 0555, .child = cdrom_table, }, |
894d24911
|
3716 |
{ } |
1da177e4c
|
3717 3718 3719 |
}; /* Make sure that /proc/sys/dev is there */ |
90a3b89e0
|
3720 |
static struct ctl_table cdrom_root_table[] = { |
1da177e4c
|
3721 |
{ |
1da177e4c
|
3722 3723 3724 3725 3726 |
.procname = "dev", .maxlen = 0, .mode = 0555, .child = cdrom_cdrom_table, }, |
894d24911
|
3727 |
{ } |
1da177e4c
|
3728 3729 3730 3731 3732 3733 3734 3735 3736 |
}; static struct ctl_table_header *cdrom_sysctl_header; static void cdrom_sysctl_register(void) { static int initialized; if (initialized == 1) return; |
0b4d41471
|
3737 |
cdrom_sysctl_header = register_sysctl_table(cdrom_root_table); |
1da177e4c
|
3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 |
/* 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); } |
17672cf0a
|
3754 3755 3756 3757 3758 3759 3760 3761 3762 |
#else /* CONFIG_SYSCTL */ static void cdrom_sysctl_register(void) { } static void cdrom_sysctl_unregister(void) { } |
1da177e4c
|
3763 3764 3765 3766 |
#endif /* CONFIG_SYSCTL */ static int __init cdrom_init(void) { |
1da177e4c
|
3767 |
cdrom_sysctl_register(); |
17672cf0a
|
3768 |
|
1da177e4c
|
3769 3770 3771 3772 3773 |
return 0; } static void __exit cdrom_exit(void) { |
e597cd09f
|
3774 3775 |
pr_info("Uniform CD-ROM driver unloaded "); |
1da177e4c
|
3776 |
cdrom_sysctl_unregister(); |
1da177e4c
|
3777 3778 3779 3780 3781 |
} module_init(cdrom_init); module_exit(cdrom_exit); MODULE_LICENSE("GPL"); |