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![Robert P. J. Day](/assets/img/avatar_default.png)
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1189 lines
35 KiB
C
1189 lines
35 KiB
C
/*
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* -- <linux/cdrom.h>
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* General header file for linux CD-ROM drivers
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* Copyright (C) 1992 David Giller, rafetmad@oxy.edu
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* 1994, 1995 Eberhard Moenkeberg, emoenke@gwdg.de
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* 1996 David van Leeuwen, david@tm.tno.nl
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* 1997, 1998 Erik Andersen, andersee@debian.org
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* 1998-2002 Jens Axboe, axboe@suse.de
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*/
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#ifndef _LINUX_CDROM_H
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#define _LINUX_CDROM_H
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#include <asm/byteorder.h>
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/*******************************************************
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* As of Linux 2.1.x, all Linux CD-ROM application programs will use this
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* (and only this) include file. It is my hope to provide Linux with
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* a uniform interface between software accessing CD-ROMs and the various
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* device drivers that actually talk to the drives. There may still be
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* 23 different kinds of strange CD-ROM drives, but at least there will
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* now be one, and only one, Linux CD-ROM interface.
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*
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* Additionally, as of Linux 2.1.x, all Linux application programs
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* should use the O_NONBLOCK option when opening a CD-ROM device
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* for subsequent ioctl commands. This allows for neat system errors
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* like "No medium found" or "Wrong medium type" upon attempting to
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* mount or play an empty slot, mount an audio disc, or play a data disc.
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* Generally, changing an application program to support O_NONBLOCK
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* is as easy as the following:
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* - drive = open("/dev/cdrom", O_RDONLY);
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* + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
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* It is worth the small change.
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*
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* Patches for many common CD programs (provided by David A. van Leeuwen)
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* can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
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*
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*******************************************************/
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/* When a driver supports a certain function, but the cdrom drive we are
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* using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will
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* borrow the "Operation not supported" error from the network folks to
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* accomplish this. Maybe someday we will get a more targeted error code,
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* but this will do for now... */
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#define EDRIVE_CANT_DO_THIS EOPNOTSUPP
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/*******************************************************
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* The CD-ROM IOCTL commands -- these should be supported by
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* all the various cdrom drivers. For the CD-ROM ioctls, we
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* will commandeer byte 0x53, or 'S'.
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*******************************************************/
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#define CDROMPAUSE 0x5301 /* Pause Audio Operation */
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#define CDROMRESUME 0x5302 /* Resume paused Audio Operation */
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#define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */
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#define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index
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(struct cdrom_ti) */
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#define CDROMREADTOCHDR 0x5305 /* Read TOC header
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(struct cdrom_tochdr) */
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#define CDROMREADTOCENTRY 0x5306 /* Read TOC entry
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(struct cdrom_tocentry) */
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#define CDROMSTOP 0x5307 /* Stop the cdrom drive */
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#define CDROMSTART 0x5308 /* Start the cdrom drive */
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#define CDROMEJECT 0x5309 /* Ejects the cdrom media */
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#define CDROMVOLCTRL 0x530a /* Control output volume
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(struct cdrom_volctrl) */
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#define CDROMSUBCHNL 0x530b /* Read subchannel data
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(struct cdrom_subchnl) */
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#define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes)
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(struct cdrom_read) */
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#define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes)
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(struct cdrom_read) */
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#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
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#define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */
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#define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session
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address of multi session disks
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(struct cdrom_multisession) */
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#define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code"
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if available (struct cdrom_mcn) */
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#define CDROM_GET_UPC CDROM_GET_MCN /* This one is depricated,
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but here anyway for compatibility */
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#define CDROMRESET 0x5312 /* hard-reset the drive */
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#define CDROMVOLREAD 0x5313 /* Get the drive's volume setting
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(struct cdrom_volctrl) */
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#define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes)
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(struct cdrom_read) */
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/*
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* These ioctls are used only used in aztcd.c and optcd.c
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*/
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#define CDROMREADCOOKED 0x5315 /* read data in cooked mode */
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#define CDROMSEEK 0x5316 /* seek msf address */
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/*
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* This ioctl is only used by the scsi-cd driver.
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It is for playing audio in logical block addressing mode.
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*/
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#define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */
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/*
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* These ioctls are only used in optcd.c
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*/
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#define CDROMREADALL 0x5318 /* read all 2646 bytes */
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/*
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* These ioctls are (now) only in ide-cd.c for controlling
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* drive spindown time. They should be implemented in the
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* Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
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* GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
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* -Erik
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*/
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#define CDROMGETSPINDOWN 0x531d
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#define CDROMSETSPINDOWN 0x531e
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/*
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* These ioctls are implemented through the uniform CD-ROM driver
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* They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
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* drivers are eventually ported to the uniform CD-ROM driver interface.
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*/
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#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
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#define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */
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#define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */
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#define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */
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#define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */
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#define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */
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#define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */
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#define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */
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#define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */
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#define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */
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#define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */
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#define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */
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/* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
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* Future CDROM ioctls should be kept below 0x537F
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*/
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/* This ioctl is only used by sbpcd at the moment */
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#define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */
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/* conflict with SCSI_IOCTL_GET_IDLUN */
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/* DVD-ROM Specific ioctls */
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#define DVD_READ_STRUCT 0x5390 /* Read structure */
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#define DVD_WRITE_STRUCT 0x5391 /* Write structure */
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#define DVD_AUTH 0x5392 /* Authentication */
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#define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */
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#define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */
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#define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */
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/*******************************************************
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* CDROM IOCTL structures
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*******************************************************/
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/* Address in MSF format */
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struct cdrom_msf0
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{
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__u8 minute;
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__u8 second;
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__u8 frame;
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};
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/* Address in either MSF or logical format */
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union cdrom_addr
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{
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struct cdrom_msf0 msf;
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int lba;
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};
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/* This struct is used by the CDROMPLAYMSF ioctl */
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struct cdrom_msf
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{
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__u8 cdmsf_min0; /* start minute */
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__u8 cdmsf_sec0; /* start second */
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__u8 cdmsf_frame0; /* start frame */
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__u8 cdmsf_min1; /* end minute */
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__u8 cdmsf_sec1; /* end second */
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__u8 cdmsf_frame1; /* end frame */
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};
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/* This struct is used by the CDROMPLAYTRKIND ioctl */
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struct cdrom_ti
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{
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__u8 cdti_trk0; /* start track */
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__u8 cdti_ind0; /* start index */
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__u8 cdti_trk1; /* end track */
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__u8 cdti_ind1; /* end index */
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};
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/* This struct is used by the CDROMREADTOCHDR ioctl */
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struct cdrom_tochdr
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{
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__u8 cdth_trk0; /* start track */
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__u8 cdth_trk1; /* end track */
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};
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/* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
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struct cdrom_volctrl
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{
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__u8 channel0;
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__u8 channel1;
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__u8 channel2;
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__u8 channel3;
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};
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/* This struct is used by the CDROMSUBCHNL ioctl */
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struct cdrom_subchnl
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{
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__u8 cdsc_format;
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__u8 cdsc_audiostatus;
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__u8 cdsc_adr: 4;
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__u8 cdsc_ctrl: 4;
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__u8 cdsc_trk;
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__u8 cdsc_ind;
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union cdrom_addr cdsc_absaddr;
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union cdrom_addr cdsc_reladdr;
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};
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/* This struct is used by the CDROMREADTOCENTRY ioctl */
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struct cdrom_tocentry
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{
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__u8 cdte_track;
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__u8 cdte_adr :4;
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__u8 cdte_ctrl :4;
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__u8 cdte_format;
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union cdrom_addr cdte_addr;
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__u8 cdte_datamode;
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};
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/* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
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struct cdrom_read
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{
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int cdread_lba;
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char *cdread_bufaddr;
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int cdread_buflen;
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};
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/* This struct is used by the CDROMREADAUDIO ioctl */
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struct cdrom_read_audio
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{
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union cdrom_addr addr; /* frame address */
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__u8 addr_format; /* CDROM_LBA or CDROM_MSF */
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int nframes; /* number of 2352-byte-frames to read at once */
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__u8 __user *buf; /* frame buffer (size: nframes*2352 bytes) */
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};
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/* This struct is used with the CDROMMULTISESSION ioctl */
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struct cdrom_multisession
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{
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union cdrom_addr addr; /* frame address: start-of-last-session
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(not the new "frame 16"!). Only valid
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if the "xa_flag" is true. */
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__u8 xa_flag; /* 1: "is XA disk" */
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__u8 addr_format; /* CDROM_LBA or CDROM_MSF */
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};
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/* This struct is used with the CDROM_GET_MCN ioctl.
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* Very few audio discs actually have Universal Product Code information,
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* which should just be the Medium Catalog Number on the box. Also note
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* that the way the codeis written on CD is _not_ uniform across all discs!
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*/
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struct cdrom_mcn
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{
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__u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
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};
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/* This is used by the CDROMPLAYBLK ioctl */
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struct cdrom_blk
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{
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unsigned from;
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unsigned short len;
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};
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#define CDROM_PACKET_SIZE 12
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#define CGC_DATA_UNKNOWN 0
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#define CGC_DATA_WRITE 1
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#define CGC_DATA_READ 2
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#define CGC_DATA_NONE 3
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/* for CDROM_PACKET_COMMAND ioctl */
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struct cdrom_generic_command
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{
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unsigned char cmd[CDROM_PACKET_SIZE];
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unsigned char __user *buffer;
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unsigned int buflen;
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int stat;
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struct request_sense __user *sense;
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unsigned char data_direction;
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int quiet;
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int timeout;
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void __user *reserved[1]; /* unused, actually */
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};
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/*
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* A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336,
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* 2340, or 2352 bytes long.
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* Sector types of the standard CD-ROM data formats:
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*
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* format sector type user data size (bytes)
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* -----------------------------------------------------------------------------
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* 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW)
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* 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE)
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* 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0)
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* 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE)
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* 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes)
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*
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*
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* The layout of the standard CD-ROM data formats:
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* -----------------------------------------------------------------------------
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* - audio (red): | audio_sample_bytes |
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* | 2352 |
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*
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* - data (yellow, mode1): | sync - head - data - EDC - zero - ECC |
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* | 12 - 4 - 2048 - 4 - 8 - 276 |
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*
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* - data (yellow, mode2): | sync - head - data |
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* | 12 - 4 - 2336 |
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*
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* - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
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* | 12 - 4 - 8 - 2048 - 4 - 276 |
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*
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* - XA data (green, mode2 form2): | sync - head - sub - data - Spare |
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* | 12 - 4 - 8 - 2324 - 4 |
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*
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*/
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/* Some generally useful CD-ROM information -- mostly based on the above */
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#define CD_MINS 74 /* max. minutes per CD, not really a limit */
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#define CD_SECS 60 /* seconds per minute */
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#define CD_FRAMES 75 /* frames per second */
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#define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */
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#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */
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#define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */
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#define CD_NUM_OF_CHUNKS 98 /* chunks per frame */
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#define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */
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#define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */
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#define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */
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#define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */
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#define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */
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#define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */
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#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
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#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */
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#define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */
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/* most drives don't deliver everything: */
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#define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/
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#define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/
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#define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */
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#define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */
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#define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */
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/* CD-ROM address types (cdrom_tocentry.cdte_format) */
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#define CDROM_LBA 0x01 /* "logical block": first frame is #0 */
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#define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
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/* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */
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#define CDROM_DATA_TRACK 0x04
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/* The leadout track is always 0xAA, regardless of # of tracks on disc */
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#define CDROM_LEADOUT 0xAA
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/* audio states (from SCSI-2, but seen with other drives, too) */
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#define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */
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#define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */
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#define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */
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#define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */
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#define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */
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#define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */
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/* capability flags used with the uniform CD-ROM driver */
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#define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */
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#define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */
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#define CDC_LOCK 0x4 /* disable manual eject */
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#define CDC_SELECT_SPEED 0x8 /* programmable speed */
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#define CDC_SELECT_DISC 0x10 /* select disc from juke-box */
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#define CDC_MULTI_SESSION 0x20 /* read sessions>1 */
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#define CDC_MCN 0x40 /* Medium Catalog Number */
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#define CDC_MEDIA_CHANGED 0x80 /* media changed */
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#define CDC_PLAY_AUDIO 0x100 /* audio functions */
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#define CDC_RESET 0x200 /* hard reset device */
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#define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */
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#define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */
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#define CDC_CD_R 0x2000 /* drive is a CD-R */
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#define CDC_CD_RW 0x4000 /* drive is a CD-RW */
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#define CDC_DVD 0x8000 /* drive is a DVD */
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#define CDC_DVD_R 0x10000 /* drive can write DVD-R */
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#define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */
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#define CDC_MO_DRIVE 0x40000 /* drive is an MO device */
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#define CDC_MRW 0x80000 /* drive can read MRW */
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#define CDC_MRW_W 0x100000 /* drive can write MRW */
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#define CDC_RAM 0x200000 /* ok to open for WRITE */
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/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
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#define CDS_NO_INFO 0 /* if not implemented */
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#define CDS_NO_DISC 1
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#define CDS_TRAY_OPEN 2
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#define CDS_DRIVE_NOT_READY 3
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#define CDS_DISC_OK 4
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/* return values for the CDROM_DISC_STATUS ioctl */
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/* can also return CDS_NO_[INFO|DISC], from above */
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#define CDS_AUDIO 100
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#define CDS_DATA_1 101
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#define CDS_DATA_2 102
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#define CDS_XA_2_1 103
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#define CDS_XA_2_2 104
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#define CDS_MIXED 105
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/* User-configurable behavior options for the uniform CD-ROM driver */
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#define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */
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#define CDO_AUTO_EJECT 0x2 /* open tray on last release() */
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#define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */
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#define CDO_LOCK 0x8 /* lock tray on open files */
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#define CDO_CHECK_TYPE 0x10 /* check type on open for data */
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/* Special codes used when specifying changer slots. */
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#define CDSL_NONE (INT_MAX-1)
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#define CDSL_CURRENT INT_MAX
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/* For partition based multisession access. IDE can handle 64 partitions
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|
* per drive - SCSI CD-ROM's use minors to differentiate between the
|
|
* various drives, so we can't do multisessions the same way there.
|
|
* Use the -o session=x option to mount on them.
|
|
*/
|
|
#define CD_PART_MAX 64
|
|
#define CD_PART_MASK (CD_PART_MAX - 1)
|
|
|
|
/*********************************************************************
|
|
* Generic Packet commands, MMC commands, and such
|
|
*********************************************************************/
|
|
|
|
/* The generic packet command opcodes for CD/DVD Logical Units,
|
|
* From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
|
|
#define GPCMD_BLANK 0xa1
|
|
#define GPCMD_CLOSE_TRACK 0x5b
|
|
#define GPCMD_FLUSH_CACHE 0x35
|
|
#define GPCMD_FORMAT_UNIT 0x04
|
|
#define GPCMD_GET_CONFIGURATION 0x46
|
|
#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
|
|
#define GPCMD_GET_PERFORMANCE 0xac
|
|
#define GPCMD_INQUIRY 0x12
|
|
#define GPCMD_LOAD_UNLOAD 0xa6
|
|
#define GPCMD_MECHANISM_STATUS 0xbd
|
|
#define GPCMD_MODE_SELECT_10 0x55
|
|
#define GPCMD_MODE_SENSE_10 0x5a
|
|
#define GPCMD_PAUSE_RESUME 0x4b
|
|
#define GPCMD_PLAY_AUDIO_10 0x45
|
|
#define GPCMD_PLAY_AUDIO_MSF 0x47
|
|
#define GPCMD_PLAY_AUDIO_TI 0x48
|
|
#define GPCMD_PLAY_CD 0xbc
|
|
#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
|
|
#define GPCMD_READ_10 0x28
|
|
#define GPCMD_READ_12 0xa8
|
|
#define GPCMD_READ_BUFFER_CAPACITY 0x5c
|
|
#define GPCMD_READ_CDVD_CAPACITY 0x25
|
|
#define GPCMD_READ_CD 0xbe
|
|
#define GPCMD_READ_CD_MSF 0xb9
|
|
#define GPCMD_READ_DISC_INFO 0x51
|
|
#define GPCMD_READ_DVD_STRUCTURE 0xad
|
|
#define GPCMD_READ_FORMAT_CAPACITIES 0x23
|
|
#define GPCMD_READ_HEADER 0x44
|
|
#define GPCMD_READ_TRACK_RZONE_INFO 0x52
|
|
#define GPCMD_READ_SUBCHANNEL 0x42
|
|
#define GPCMD_READ_TOC_PMA_ATIP 0x43
|
|
#define GPCMD_REPAIR_RZONE_TRACK 0x58
|
|
#define GPCMD_REPORT_KEY 0xa4
|
|
#define GPCMD_REQUEST_SENSE 0x03
|
|
#define GPCMD_RESERVE_RZONE_TRACK 0x53
|
|
#define GPCMD_SEND_CUE_SHEET 0x5d
|
|
#define GPCMD_SCAN 0xba
|
|
#define GPCMD_SEEK 0x2b
|
|
#define GPCMD_SEND_DVD_STRUCTURE 0xbf
|
|
#define GPCMD_SEND_EVENT 0xa2
|
|
#define GPCMD_SEND_KEY 0xa3
|
|
#define GPCMD_SEND_OPC 0x54
|
|
#define GPCMD_SET_READ_AHEAD 0xa7
|
|
#define GPCMD_SET_STREAMING 0xb6
|
|
#define GPCMD_START_STOP_UNIT 0x1b
|
|
#define GPCMD_STOP_PLAY_SCAN 0x4e
|
|
#define GPCMD_TEST_UNIT_READY 0x00
|
|
#define GPCMD_VERIFY_10 0x2f
|
|
#define GPCMD_WRITE_10 0x2a
|
|
#define GPCMD_WRITE_AND_VERIFY_10 0x2e
|
|
/* This is listed as optional in ATAPI 2.6, but is (curiously)
|
|
* missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
|
|
* Table 377 as an MMC command for SCSi devices though... Most ATAPI
|
|
* drives support it. */
|
|
#define GPCMD_SET_SPEED 0xbb
|
|
/* This seems to be a SCSI specific CD-ROM opcode
|
|
* to play data at track/index */
|
|
#define GPCMD_PLAYAUDIO_TI 0x48
|
|
/*
|
|
* From MS Media Status Notification Support Specification. For
|
|
* older drives only.
|
|
*/
|
|
#define GPCMD_GET_MEDIA_STATUS 0xda
|
|
|
|
/* Mode page codes for mode sense/set */
|
|
#define GPMODE_VENDOR_PAGE 0x00
|
|
#define GPMODE_R_W_ERROR_PAGE 0x01
|
|
#define GPMODE_WRITE_PARMS_PAGE 0x05
|
|
#define GPMODE_WCACHING_PAGE 0x08
|
|
#define GPMODE_AUDIO_CTL_PAGE 0x0e
|
|
#define GPMODE_POWER_PAGE 0x1a
|
|
#define GPMODE_FAULT_FAIL_PAGE 0x1c
|
|
#define GPMODE_TO_PROTECT_PAGE 0x1d
|
|
#define GPMODE_CAPABILITIES_PAGE 0x2a
|
|
#define GPMODE_ALL_PAGES 0x3f
|
|
/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
|
|
* of MODE_SENSE_POWER_PAGE */
|
|
#define GPMODE_CDROM_PAGE 0x0d
|
|
|
|
|
|
|
|
/* DVD struct types */
|
|
#define DVD_STRUCT_PHYSICAL 0x00
|
|
#define DVD_STRUCT_COPYRIGHT 0x01
|
|
#define DVD_STRUCT_DISCKEY 0x02
|
|
#define DVD_STRUCT_BCA 0x03
|
|
#define DVD_STRUCT_MANUFACT 0x04
|
|
|
|
struct dvd_layer {
|
|
__u8 book_version : 4;
|
|
__u8 book_type : 4;
|
|
__u8 min_rate : 4;
|
|
__u8 disc_size : 4;
|
|
__u8 layer_type : 4;
|
|
__u8 track_path : 1;
|
|
__u8 nlayers : 2;
|
|
__u8 track_density : 4;
|
|
__u8 linear_density : 4;
|
|
__u8 bca : 1;
|
|
__u32 start_sector;
|
|
__u32 end_sector;
|
|
__u32 end_sector_l0;
|
|
};
|
|
|
|
#define DVD_LAYERS 4
|
|
|
|
struct dvd_physical {
|
|
__u8 type;
|
|
__u8 layer_num;
|
|
struct dvd_layer layer[DVD_LAYERS];
|
|
};
|
|
|
|
struct dvd_copyright {
|
|
__u8 type;
|
|
|
|
__u8 layer_num;
|
|
__u8 cpst;
|
|
__u8 rmi;
|
|
};
|
|
|
|
struct dvd_disckey {
|
|
__u8 type;
|
|
|
|
unsigned agid : 2;
|
|
__u8 value[2048];
|
|
};
|
|
|
|
struct dvd_bca {
|
|
__u8 type;
|
|
|
|
int len;
|
|
__u8 value[188];
|
|
};
|
|
|
|
struct dvd_manufact {
|
|
__u8 type;
|
|
|
|
__u8 layer_num;
|
|
int len;
|
|
__u8 value[2048];
|
|
};
|
|
|
|
typedef union {
|
|
__u8 type;
|
|
|
|
struct dvd_physical physical;
|
|
struct dvd_copyright copyright;
|
|
struct dvd_disckey disckey;
|
|
struct dvd_bca bca;
|
|
struct dvd_manufact manufact;
|
|
} dvd_struct;
|
|
|
|
/*
|
|
* DVD authentication ioctl
|
|
*/
|
|
|
|
/* Authentication states */
|
|
#define DVD_LU_SEND_AGID 0
|
|
#define DVD_HOST_SEND_CHALLENGE 1
|
|
#define DVD_LU_SEND_KEY1 2
|
|
#define DVD_LU_SEND_CHALLENGE 3
|
|
#define DVD_HOST_SEND_KEY2 4
|
|
|
|
/* Termination states */
|
|
#define DVD_AUTH_ESTABLISHED 5
|
|
#define DVD_AUTH_FAILURE 6
|
|
|
|
/* Other functions */
|
|
#define DVD_LU_SEND_TITLE_KEY 7
|
|
#define DVD_LU_SEND_ASF 8
|
|
#define DVD_INVALIDATE_AGID 9
|
|
#define DVD_LU_SEND_RPC_STATE 10
|
|
#define DVD_HOST_SEND_RPC_STATE 11
|
|
|
|
/* State data */
|
|
typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */
|
|
typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */
|
|
|
|
struct dvd_lu_send_agid {
|
|
__u8 type;
|
|
unsigned agid : 2;
|
|
};
|
|
|
|
struct dvd_host_send_challenge {
|
|
__u8 type;
|
|
unsigned agid : 2;
|
|
|
|
dvd_challenge chal;
|
|
};
|
|
|
|
struct dvd_send_key {
|
|
__u8 type;
|
|
unsigned agid : 2;
|
|
|
|
dvd_key key;
|
|
};
|
|
|
|
struct dvd_lu_send_challenge {
|
|
__u8 type;
|
|
unsigned agid : 2;
|
|
|
|
dvd_challenge chal;
|
|
};
|
|
|
|
#define DVD_CPM_NO_COPYRIGHT 0
|
|
#define DVD_CPM_COPYRIGHTED 1
|
|
|
|
#define DVD_CP_SEC_NONE 0
|
|
#define DVD_CP_SEC_EXIST 1
|
|
|
|
#define DVD_CGMS_UNRESTRICTED 0
|
|
#define DVD_CGMS_SINGLE 2
|
|
#define DVD_CGMS_RESTRICTED 3
|
|
|
|
struct dvd_lu_send_title_key {
|
|
__u8 type;
|
|
unsigned agid : 2;
|
|
|
|
dvd_key title_key;
|
|
int lba;
|
|
unsigned cpm : 1;
|
|
unsigned cp_sec : 1;
|
|
unsigned cgms : 2;
|
|
};
|
|
|
|
struct dvd_lu_send_asf {
|
|
__u8 type;
|
|
unsigned agid : 2;
|
|
|
|
unsigned asf : 1;
|
|
};
|
|
|
|
struct dvd_host_send_rpcstate {
|
|
__u8 type;
|
|
__u8 pdrc;
|
|
};
|
|
|
|
struct dvd_lu_send_rpcstate {
|
|
__u8 type : 2;
|
|
__u8 vra : 3;
|
|
__u8 ucca : 3;
|
|
__u8 region_mask;
|
|
__u8 rpc_scheme;
|
|
};
|
|
|
|
typedef union {
|
|
__u8 type;
|
|
|
|
struct dvd_lu_send_agid lsa;
|
|
struct dvd_host_send_challenge hsc;
|
|
struct dvd_send_key lsk;
|
|
struct dvd_lu_send_challenge lsc;
|
|
struct dvd_send_key hsk;
|
|
struct dvd_lu_send_title_key lstk;
|
|
struct dvd_lu_send_asf lsasf;
|
|
struct dvd_host_send_rpcstate hrpcs;
|
|
struct dvd_lu_send_rpcstate lrpcs;
|
|
} dvd_authinfo;
|
|
|
|
struct request_sense {
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 valid : 1;
|
|
__u8 error_code : 7;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 error_code : 7;
|
|
__u8 valid : 1;
|
|
#endif
|
|
__u8 segment_number;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved1 : 2;
|
|
__u8 ili : 1;
|
|
__u8 reserved2 : 1;
|
|
__u8 sense_key : 4;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 sense_key : 4;
|
|
__u8 reserved2 : 1;
|
|
__u8 ili : 1;
|
|
__u8 reserved1 : 2;
|
|
#endif
|
|
__u8 information[4];
|
|
__u8 add_sense_len;
|
|
__u8 command_info[4];
|
|
__u8 asc;
|
|
__u8 ascq;
|
|
__u8 fruc;
|
|
__u8 sks[3];
|
|
__u8 asb[46];
|
|
};
|
|
|
|
/*
|
|
* feature profile
|
|
*/
|
|
#define CDF_RWRT 0x0020 /* "Random Writable" */
|
|
#define CDF_HWDM 0x0024 /* "Hardware Defect Management" */
|
|
#define CDF_MRW 0x0028
|
|
|
|
/*
|
|
* media status bits
|
|
*/
|
|
#define CDM_MRW_NOTMRW 0
|
|
#define CDM_MRW_BGFORMAT_INACTIVE 1
|
|
#define CDM_MRW_BGFORMAT_ACTIVE 2
|
|
#define CDM_MRW_BGFORMAT_COMPLETE 3
|
|
|
|
/*
|
|
* mrw address spaces
|
|
*/
|
|
#define MRW_LBA_DMA 0
|
|
#define MRW_LBA_GAA 1
|
|
|
|
/*
|
|
* mrw mode pages (first is deprecated) -- probed at init time and
|
|
* cdi->mrw_mode_page is set
|
|
*/
|
|
#define MRW_MODE_PC_PRE1 0x2c
|
|
#define MRW_MODE_PC 0x03
|
|
|
|
struct mrw_feature_desc {
|
|
__be16 feature_code;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved1 : 2;
|
|
__u8 feature_version : 4;
|
|
__u8 persistent : 1;
|
|
__u8 curr : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 curr : 1;
|
|
__u8 persistent : 1;
|
|
__u8 feature_version : 4;
|
|
__u8 reserved1 : 2;
|
|
#endif
|
|
__u8 add_len;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved2 : 7;
|
|
__u8 write : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 write : 1;
|
|
__u8 reserved2 : 7;
|
|
#endif
|
|
__u8 reserved3;
|
|
__u8 reserved4;
|
|
__u8 reserved5;
|
|
};
|
|
|
|
/* cf. mmc4r02g.pdf 5.3.10 Random Writable Feature (0020h) pg 197 of 635 */
|
|
struct rwrt_feature_desc {
|
|
__be16 feature_code;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved1 : 2;
|
|
__u8 feature_version : 4;
|
|
__u8 persistent : 1;
|
|
__u8 curr : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 curr : 1;
|
|
__u8 persistent : 1;
|
|
__u8 feature_version : 4;
|
|
__u8 reserved1 : 2;
|
|
#endif
|
|
__u8 add_len;
|
|
__u32 last_lba;
|
|
__u32 block_size;
|
|
__u16 blocking;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved2 : 7;
|
|
__u8 page_present : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 page_present : 1;
|
|
__u8 reserved2 : 7;
|
|
#endif
|
|
__u8 reserved3;
|
|
};
|
|
|
|
typedef struct {
|
|
__be16 disc_information_length;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved1 : 3;
|
|
__u8 erasable : 1;
|
|
__u8 border_status : 2;
|
|
__u8 disc_status : 2;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 disc_status : 2;
|
|
__u8 border_status : 2;
|
|
__u8 erasable : 1;
|
|
__u8 reserved1 : 3;
|
|
#else
|
|
#error "Please fix <asm/byteorder.h>"
|
|
#endif
|
|
__u8 n_first_track;
|
|
__u8 n_sessions_lsb;
|
|
__u8 first_track_lsb;
|
|
__u8 last_track_lsb;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 did_v : 1;
|
|
__u8 dbc_v : 1;
|
|
__u8 uru : 1;
|
|
__u8 reserved2 : 2;
|
|
__u8 dbit : 1;
|
|
__u8 mrw_status : 2;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 mrw_status : 2;
|
|
__u8 dbit : 1;
|
|
__u8 reserved2 : 2;
|
|
__u8 uru : 1;
|
|
__u8 dbc_v : 1;
|
|
__u8 did_v : 1;
|
|
#endif
|
|
__u8 disc_type;
|
|
__u8 n_sessions_msb;
|
|
__u8 first_track_msb;
|
|
__u8 last_track_msb;
|
|
__u32 disc_id;
|
|
__u32 lead_in;
|
|
__u32 lead_out;
|
|
__u8 disc_bar_code[8];
|
|
__u8 reserved3;
|
|
__u8 n_opc;
|
|
} disc_information;
|
|
|
|
typedef struct {
|
|
__be16 track_information_length;
|
|
__u8 track_lsb;
|
|
__u8 session_lsb;
|
|
__u8 reserved1;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved2 : 2;
|
|
__u8 damage : 1;
|
|
__u8 copy : 1;
|
|
__u8 track_mode : 4;
|
|
__u8 rt : 1;
|
|
__u8 blank : 1;
|
|
__u8 packet : 1;
|
|
__u8 fp : 1;
|
|
__u8 data_mode : 4;
|
|
__u8 reserved3 : 6;
|
|
__u8 lra_v : 1;
|
|
__u8 nwa_v : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 track_mode : 4;
|
|
__u8 copy : 1;
|
|
__u8 damage : 1;
|
|
__u8 reserved2 : 2;
|
|
__u8 data_mode : 4;
|
|
__u8 fp : 1;
|
|
__u8 packet : 1;
|
|
__u8 blank : 1;
|
|
__u8 rt : 1;
|
|
__u8 nwa_v : 1;
|
|
__u8 lra_v : 1;
|
|
__u8 reserved3 : 6;
|
|
#endif
|
|
__be32 track_start;
|
|
__be32 next_writable;
|
|
__be32 free_blocks;
|
|
__be32 fixed_packet_size;
|
|
__be32 track_size;
|
|
__be32 last_rec_address;
|
|
} track_information;
|
|
|
|
struct feature_header {
|
|
__u32 data_len;
|
|
__u8 reserved1;
|
|
__u8 reserved2;
|
|
__u16 curr_profile;
|
|
};
|
|
|
|
struct mode_page_header {
|
|
__be16 mode_data_length;
|
|
__u8 medium_type;
|
|
__u8 reserved1;
|
|
__u8 reserved2;
|
|
__u8 reserved3;
|
|
__be16 desc_length;
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/fs.h> /* not really needed, later.. */
|
|
#include <linux/device.h>
|
|
|
|
struct packet_command
|
|
{
|
|
unsigned char cmd[CDROM_PACKET_SIZE];
|
|
unsigned char *buffer;
|
|
unsigned int buflen;
|
|
int stat;
|
|
struct request_sense *sense;
|
|
unsigned char data_direction;
|
|
int quiet;
|
|
int timeout;
|
|
void *reserved[1];
|
|
};
|
|
|
|
/*
|
|
* _OLD will use PIO transfer on atapi devices, _BPC_* will use DMA
|
|
*/
|
|
#define CDDA_OLD 0 /* old style */
|
|
#define CDDA_BPC_SINGLE 1 /* single frame block pc */
|
|
#define CDDA_BPC_FULL 2 /* multi frame block pc */
|
|
|
|
/* Uniform cdrom data structures for cdrom.c */
|
|
struct cdrom_device_info {
|
|
struct cdrom_device_ops *ops; /* link to device_ops */
|
|
struct cdrom_device_info *next; /* next device_info for this major */
|
|
struct gendisk *disk; /* matching block layer disk */
|
|
void *handle; /* driver-dependent data */
|
|
/* specifications */
|
|
int mask; /* mask of capability: disables them */
|
|
int speed; /* maximum speed for reading data */
|
|
int capacity; /* number of discs in jukebox */
|
|
/* device-related storage */
|
|
unsigned int options : 30; /* options flags */
|
|
unsigned mc_flags : 2; /* media change buffer flags */
|
|
int use_count; /* number of times device opened */
|
|
char name[20]; /* name of the device type */
|
|
/* per-device flags */
|
|
__u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */
|
|
__u8 reserved : 6; /* not used yet */
|
|
int cdda_method; /* see flags */
|
|
__u8 last_sense;
|
|
__u8 media_written; /* dirty flag, DVD+RW bookkeeping */
|
|
unsigned short mmc3_profile; /* current MMC3 profile */
|
|
int for_data;
|
|
int (*exit)(struct cdrom_device_info *);
|
|
int mrw_mode_page;
|
|
};
|
|
|
|
struct cdrom_device_ops {
|
|
/* routines */
|
|
int (*open) (struct cdrom_device_info *, int);
|
|
void (*release) (struct cdrom_device_info *);
|
|
int (*drive_status) (struct cdrom_device_info *, int);
|
|
int (*media_changed) (struct cdrom_device_info *, int);
|
|
int (*tray_move) (struct cdrom_device_info *, int);
|
|
int (*lock_door) (struct cdrom_device_info *, int);
|
|
int (*select_speed) (struct cdrom_device_info *, int);
|
|
int (*select_disc) (struct cdrom_device_info *, int);
|
|
int (*get_last_session) (struct cdrom_device_info *,
|
|
struct cdrom_multisession *);
|
|
int (*get_mcn) (struct cdrom_device_info *,
|
|
struct cdrom_mcn *);
|
|
/* hard reset device */
|
|
int (*reset) (struct cdrom_device_info *);
|
|
/* play stuff */
|
|
int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
|
|
|
|
/* driver specifications */
|
|
const int capability; /* capability flags */
|
|
int n_minors; /* number of active minor devices */
|
|
/* handle uniform packets for scsi type devices (scsi,atapi) */
|
|
int (*generic_packet) (struct cdrom_device_info *,
|
|
struct packet_command *);
|
|
};
|
|
|
|
/* the general block_device operations structure: */
|
|
extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip,
|
|
struct file *fp);
|
|
extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp);
|
|
extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi,
|
|
struct inode *ip, unsigned int cmd, unsigned long arg);
|
|
extern int cdrom_media_changed(struct cdrom_device_info *);
|
|
|
|
extern int register_cdrom(struct cdrom_device_info *cdi);
|
|
extern int unregister_cdrom(struct cdrom_device_info *cdi);
|
|
|
|
typedef struct {
|
|
int data;
|
|
int audio;
|
|
int cdi;
|
|
int xa;
|
|
long error;
|
|
} tracktype;
|
|
|
|
extern int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written);
|
|
extern int cdrom_number_of_slots(struct cdrom_device_info *cdi);
|
|
extern int cdrom_mode_select(struct cdrom_device_info *cdi,
|
|
struct packet_command *cgc);
|
|
extern int cdrom_mode_sense(struct cdrom_device_info *cdi,
|
|
struct packet_command *cgc,
|
|
int page_code, int page_control);
|
|
extern void init_cdrom_command(struct packet_command *cgc,
|
|
void *buffer, int len, int type);
|
|
|
|
/* The SCSI spec says there could be 256 slots. */
|
|
#define CDROM_MAX_SLOTS 256
|
|
|
|
struct cdrom_mechstat_header {
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 fault : 1;
|
|
__u8 changer_state : 2;
|
|
__u8 curslot : 5;
|
|
__u8 mech_state : 3;
|
|
__u8 door_open : 1;
|
|
__u8 reserved1 : 4;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 curslot : 5;
|
|
__u8 changer_state : 2;
|
|
__u8 fault : 1;
|
|
__u8 reserved1 : 4;
|
|
__u8 door_open : 1;
|
|
__u8 mech_state : 3;
|
|
#endif
|
|
__u8 curlba[3];
|
|
__u8 nslots;
|
|
__u16 slot_tablelen;
|
|
};
|
|
|
|
struct cdrom_slot {
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 disc_present : 1;
|
|
__u8 reserved1 : 6;
|
|
__u8 change : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 change : 1;
|
|
__u8 reserved1 : 6;
|
|
__u8 disc_present : 1;
|
|
#endif
|
|
__u8 reserved2[3];
|
|
};
|
|
|
|
struct cdrom_changer_info {
|
|
struct cdrom_mechstat_header hdr;
|
|
struct cdrom_slot slots[CDROM_MAX_SLOTS];
|
|
};
|
|
|
|
typedef enum {
|
|
mechtype_caddy = 0,
|
|
mechtype_tray = 1,
|
|
mechtype_popup = 2,
|
|
mechtype_individual_changer = 4,
|
|
mechtype_cartridge_changer = 5
|
|
} mechtype_t;
|
|
|
|
typedef struct {
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 ps : 1;
|
|
__u8 reserved1 : 1;
|
|
__u8 page_code : 6;
|
|
__u8 page_length;
|
|
__u8 reserved2 : 1;
|
|
__u8 bufe : 1;
|
|
__u8 ls_v : 1;
|
|
__u8 test_write : 1;
|
|
__u8 write_type : 4;
|
|
__u8 multi_session : 2; /* or border, DVD */
|
|
__u8 fp : 1;
|
|
__u8 copy : 1;
|
|
__u8 track_mode : 4;
|
|
__u8 reserved3 : 4;
|
|
__u8 data_block_type : 4;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 page_code : 6;
|
|
__u8 reserved1 : 1;
|
|
__u8 ps : 1;
|
|
__u8 page_length;
|
|
__u8 write_type : 4;
|
|
__u8 test_write : 1;
|
|
__u8 ls_v : 1;
|
|
__u8 bufe : 1;
|
|
__u8 reserved2 : 1;
|
|
__u8 track_mode : 4;
|
|
__u8 copy : 1;
|
|
__u8 fp : 1;
|
|
__u8 multi_session : 2; /* or border, DVD */
|
|
__u8 data_block_type : 4;
|
|
__u8 reserved3 : 4;
|
|
#endif
|
|
__u8 link_size;
|
|
__u8 reserved4;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved5 : 2;
|
|
__u8 app_code : 6;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 app_code : 6;
|
|
__u8 reserved5 : 2;
|
|
#endif
|
|
__u8 session_format;
|
|
__u8 reserved6;
|
|
__be32 packet_size;
|
|
__u16 audio_pause;
|
|
__u8 mcn[16];
|
|
__u8 isrc[16];
|
|
__u8 subhdr0;
|
|
__u8 subhdr1;
|
|
__u8 subhdr2;
|
|
__u8 subhdr3;
|
|
} __attribute__((packed)) write_param_page;
|
|
|
|
struct modesel_head
|
|
{
|
|
__u8 reserved1;
|
|
__u8 medium;
|
|
__u8 reserved2;
|
|
__u8 block_desc_length;
|
|
__u8 density;
|
|
__u8 number_of_blocks_hi;
|
|
__u8 number_of_blocks_med;
|
|
__u8 number_of_blocks_lo;
|
|
__u8 reserved3;
|
|
__u8 block_length_hi;
|
|
__u8 block_length_med;
|
|
__u8 block_length_lo;
|
|
};
|
|
|
|
typedef struct {
|
|
__u16 report_key_length;
|
|
__u8 reserved1;
|
|
__u8 reserved2;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 type_code : 2;
|
|
__u8 vra : 3;
|
|
__u8 ucca : 3;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 ucca : 3;
|
|
__u8 vra : 3;
|
|
__u8 type_code : 2;
|
|
#endif
|
|
__u8 region_mask;
|
|
__u8 rpc_scheme;
|
|
__u8 reserved3;
|
|
} rpc_state_t;
|
|
|
|
struct event_header {
|
|
__be16 data_len;
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 nea : 1;
|
|
__u8 reserved1 : 4;
|
|
__u8 notification_class : 3;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 notification_class : 3;
|
|
__u8 reserved1 : 4;
|
|
__u8 nea : 1;
|
|
#endif
|
|
__u8 supp_event_class;
|
|
};
|
|
|
|
struct media_event_desc {
|
|
#if defined(__BIG_ENDIAN_BITFIELD)
|
|
__u8 reserved1 : 4;
|
|
__u8 media_event_code : 4;
|
|
__u8 reserved2 : 6;
|
|
__u8 media_present : 1;
|
|
__u8 door_open : 1;
|
|
#elif defined(__LITTLE_ENDIAN_BITFIELD)
|
|
__u8 media_event_code : 4;
|
|
__u8 reserved1 : 4;
|
|
__u8 door_open : 1;
|
|
__u8 media_present : 1;
|
|
__u8 reserved2 : 6;
|
|
#endif
|
|
__u8 start_slot;
|
|
__u8 end_slot;
|
|
};
|
|
|
|
extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med);
|
|
|
|
#endif /* End of kernel only stuff */
|
|
|
|
#endif /* _LINUX_CDROM_H */
|