Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262476AbTIBTRd (ORCPT ); Tue, 2 Sep 2003 15:17:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261288AbTIBTRd (ORCPT ); Tue, 2 Sep 2003 15:17:33 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:29854 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S262519AbTIBTQY (ORCPT ); Tue, 2 Sep 2003 15:16:24 -0400 Date: Tue, 2 Sep 2003 20:16:14 +0100 From: Matthew Wilcox To: linux-kernel@vger.kernel.org Subject: kernel header separation Message-ID: <20030902191614.GR13467@parcelfarce.linux.theplanet.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 51645 Lines: 1507 In a continuing series of "Things we should have done 5 years ago, do they really need to be done before the release of 2.6.0", here's a prototype of splitting the kernel headers into stuff we want userspace to see and stuff we don't. The basic principle is to put user headers in usr/include/linux and usr/include/asm-$(ARCH). Kernel headers may then include them as and This patch implents the 4 lines of Makefile magic necessary and converts cdrom.h to use this split. Note that we can convert headers as slowly as we care to with this scheme. Index: Makefile =================================================================== RCS file: /var/cvs/linux-2.6/Makefile,v retrieving revision 1.28 diff -u -p -r1.28 Makefile --- Makefile 2 Sep 2003 01:03:41 -0000 1.28 +++ Makefile 2 Sep 2003 19:07:45 -0000 @@ -472,7 +472,7 @@ $(SUBDIRS): prepare # module versions are listed in "prepare" .PHONY: prepare -prepare: include/linux/version.h include/asm include/config/MARKER +prepare: include/linux/version.h include/asm include/user include/config/MARKER ifdef KBUILD_MODULES ifeq ($(origin SUBDIRS),file) $(Q)rm -rf $(MODVERDIR) @@ -513,6 +513,12 @@ export AFLAGS_vmlinux.lds.o += -P -C -U$ include/asm: @echo ' Making asm->asm-$(ARCH) symlink' @ln -s asm-$(ARCH) $@ + +# Can't rely on distributing these syminks as patches +include/user: + @echo ' Making user->usr/include/linux symlink' + @ln -s ../usr/include/linux $@ + @ln -s ../usr/include/asm-$(ARCH) include/user-asm # Split autoconf.h into include/linux/config/* Index: include/linux/cdrom.h =================================================================== RCS file: /var/cvs/linux-2.6/include/linux/cdrom.h,v retrieving revision 1.1 diff -u -p -r1.1 cdrom.h --- include/linux/cdrom.h 29 Jul 2003 17:02:11 -0000 1.1 +++ include/linux/cdrom.h 2 Sep 2003 19:07:47 -0000 @@ -11,711 +11,8 @@ #ifndef _LINUX_CDROM_H #define _LINUX_CDROM_H -#include +#include -/******************************************************* - * As of Linux 2.1.x, all Linux CD-ROM application programs will use this - * (and only this) include file. It is my hope to provide Linux with - * a uniform interface between software accessing CD-ROMs and the various - * device drivers that actually talk to the drives. There may still be - * 23 different kinds of strange CD-ROM drives, but at least there will - * now be one, and only one, Linux CD-ROM interface. - * - * Additionally, as of Linux 2.1.x, all Linux application programs - * should use the O_NONBLOCK option when opening a CD-ROM device - * for subsequent ioctl commands. This allows for neat system errors - * like "No medium found" or "Wrong medium type" upon attempting to - * mount or play an empty slot, mount an audio disc, or play a data disc. - * Generally, changing an application program to support O_NONBLOCK - * is as easy as the following: - * - drive = open("/dev/cdrom", O_RDONLY); - * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK); - * It is worth the small change. - * - * Patches for many common CD programs (provided by David A. van Leeuwen) - * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/ - * - *******************************************************/ - -/* When a driver supports a certain function, but the cdrom drive we are - * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will - * borrow the "Operation not supported" error from the network folks to - * accomplish this. Maybe someday we will get a more targeted error code, - * but this will do for now... */ -#define EDRIVE_CANT_DO_THIS EOPNOTSUPP - -/******************************************************* - * The CD-ROM IOCTL commands -- these should be supported by - * all the various cdrom drivers. For the CD-ROM ioctls, we - * will commandeer byte 0x53, or 'S'. - *******************************************************/ -#define CDROMPAUSE 0x5301 /* Pause Audio Operation */ -#define CDROMRESUME 0x5302 /* Resume paused Audio Operation */ -#define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */ -#define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index - (struct cdrom_ti) */ -#define CDROMREADTOCHDR 0x5305 /* Read TOC header - (struct cdrom_tochdr) */ -#define CDROMREADTOCENTRY 0x5306 /* Read TOC entry - (struct cdrom_tocentry) */ -#define CDROMSTOP 0x5307 /* Stop the cdrom drive */ -#define CDROMSTART 0x5308 /* Start the cdrom drive */ -#define CDROMEJECT 0x5309 /* Ejects the cdrom media */ -#define CDROMVOLCTRL 0x530a /* Control output volume - (struct cdrom_volctrl) */ -#define CDROMSUBCHNL 0x530b /* Read subchannel data - (struct cdrom_subchnl) */ -#define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes) - (struct cdrom_read) */ -#define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes) - (struct cdrom_read) */ -#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */ -#define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */ -#define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session - address of multi session disks - (struct cdrom_multisession) */ -#define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code" - if available (struct cdrom_mcn) */ -#define CDROM_GET_UPC CDROM_GET_MCN /* This one is depricated, - but here anyway for compatibility */ -#define CDROMRESET 0x5312 /* hard-reset the drive */ -#define CDROMVOLREAD 0x5313 /* Get the drive's volume setting - (struct cdrom_volctrl) */ -#define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes) - (struct cdrom_read) */ -/* - * These ioctls are used only used in aztcd.c and optcd.c - */ -#define CDROMREADCOOKED 0x5315 /* read data in cooked mode */ -#define CDROMSEEK 0x5316 /* seek msf address */ - -/* - * This ioctl is only used by the scsi-cd driver. - It is for playing audio in logical block addressing mode. - */ -#define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */ - -/* - * These ioctls are only used in optcd.c - */ -#define CDROMREADALL 0x5318 /* read all 2646 bytes */ - -/* - * These ioctls are (now) only in ide-cd.c for controlling - * drive spindown time. They should be implemented in the - * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10, - * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE... - * -Erik - */ -#define CDROMGETSPINDOWN 0x531d -#define CDROMSETSPINDOWN 0x531e - -/* - * These ioctls are implemented through the uniform CD-ROM driver - * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM - * drivers are eventually ported to the uniform CD-ROM driver interface. - */ -#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */ -#define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */ -#define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */ -#define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */ -#define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */ -#define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */ -#define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */ -#define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */ -#define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */ -#define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */ -#define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */ -#define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */ - -/* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386. - * Future CDROM ioctls should be kept below 0x537F - */ - -/* This ioctl is only used by sbpcd at the moment */ -#define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */ - /* conflict with SCSI_IOCTL_GET_IDLUN */ - -/* DVD-ROM Specific ioctls */ -#define DVD_READ_STRUCT 0x5390 /* Read structure */ -#define DVD_WRITE_STRUCT 0x5391 /* Write structure */ -#define DVD_AUTH 0x5392 /* Authentication */ - -#define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */ -#define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */ -#define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */ - -/******************************************************* - * CDROM IOCTL structures - *******************************************************/ - -/* Address in MSF format */ -struct cdrom_msf0 -{ - __u8 minute; - __u8 second; - __u8 frame; -}; - -/* Address in either MSF or logical format */ -union cdrom_addr -{ - struct cdrom_msf0 msf; - int lba; -}; - -/* This struct is used by the CDROMPLAYMSF ioctl */ -struct cdrom_msf -{ - __u8 cdmsf_min0; /* start minute */ - __u8 cdmsf_sec0; /* start second */ - __u8 cdmsf_frame0; /* start frame */ - __u8 cdmsf_min1; /* end minute */ - __u8 cdmsf_sec1; /* end second */ - __u8 cdmsf_frame1; /* end frame */ -}; - -/* This struct is used by the CDROMPLAYTRKIND ioctl */ -struct cdrom_ti -{ - __u8 cdti_trk0; /* start track */ - __u8 cdti_ind0; /* start index */ - __u8 cdti_trk1; /* end track */ - __u8 cdti_ind1; /* end index */ -}; - -/* This struct is used by the CDROMREADTOCHDR ioctl */ -struct cdrom_tochdr -{ - __u8 cdth_trk0; /* start track */ - __u8 cdth_trk1; /* end track */ -}; - -/* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */ -struct cdrom_volctrl -{ - __u8 channel0; - __u8 channel1; - __u8 channel2; - __u8 channel3; -}; - -/* This struct is used by the CDROMSUBCHNL ioctl */ -struct cdrom_subchnl -{ - __u8 cdsc_format; - __u8 cdsc_audiostatus; - __u8 cdsc_adr: 4; - __u8 cdsc_ctrl: 4; - __u8 cdsc_trk; - __u8 cdsc_ind; - union cdrom_addr cdsc_absaddr; - union cdrom_addr cdsc_reladdr; -}; - - -/* This struct is used by the CDROMREADTOCENTRY ioctl */ -struct cdrom_tocentry -{ - __u8 cdte_track; - __u8 cdte_adr :4; - __u8 cdte_ctrl :4; - __u8 cdte_format; - union cdrom_addr cdte_addr; - __u8 cdte_datamode; -}; - -/* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */ -struct cdrom_read -{ - int cdread_lba; - char *cdread_bufaddr; - int cdread_buflen; -}; - -/* This struct is used by the CDROMREADAUDIO ioctl */ -struct cdrom_read_audio -{ - union cdrom_addr addr; /* frame address */ - __u8 addr_format; /* CDROM_LBA or CDROM_MSF */ - int nframes; /* number of 2352-byte-frames to read at once */ - __u8 *buf; /* frame buffer (size: nframes*2352 bytes) */ -}; - -/* This struct is used with the CDROMMULTISESSION ioctl */ -struct cdrom_multisession -{ - union cdrom_addr addr; /* frame address: start-of-last-session - (not the new "frame 16"!). Only valid - if the "xa_flag" is true. */ - __u8 xa_flag; /* 1: "is XA disk" */ - __u8 addr_format; /* CDROM_LBA or CDROM_MSF */ -}; - -/* This struct is used with the CDROM_GET_MCN ioctl. - * Very few audio discs actually have Universal Product Code information, - * which should just be the Medium Catalog Number on the box. Also note - * that the way the codeis written on CD is _not_ uniform across all discs! - */ -struct cdrom_mcn -{ - __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */ -}; - -/* This is used by the CDROMPLAYBLK ioctl */ -struct cdrom_blk -{ - unsigned from; - unsigned short len; -}; - -#define CDROM_PACKET_SIZE 12 - -#define CGC_DATA_UNKNOWN 0 -#define CGC_DATA_WRITE 1 -#define CGC_DATA_READ 2 -#define CGC_DATA_NONE 3 - -/* for CDROM_PACKET_COMMAND ioctl */ -struct cdrom_generic_command -{ - unsigned char cmd[CDROM_PACKET_SIZE]; - unsigned char *buffer; - unsigned int buflen; - int stat; - struct request_sense *sense; - unsigned char data_direction; - int quiet; - int timeout; - void *reserved[1]; -}; - - -/* - * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, - * 2340, or 2352 bytes long. - -* Sector types of the standard CD-ROM data formats: - * - * format sector type user data size (bytes) - * ----------------------------------------------------------------------------- - * 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW) - * 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE) - * 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0) - * 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE) - * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes) - * - * - * The layout of the standard CD-ROM data formats: - * ----------------------------------------------------------------------------- - * - audio (red): | audio_sample_bytes | - * | 2352 | - * - * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC | - * | 12 - 4 - 2048 - 4 - 8 - 276 | - * - * - data (yellow, mode2): | sync - head - data | - * | 12 - 4 - 2336 | - * - * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC | - * | 12 - 4 - 8 - 2048 - 4 - 276 | - * - * - XA data (green, mode2 form2): | sync - head - sub - data - Spare | - * | 12 - 4 - 8 - 2324 - 4 | - * - */ - -/* Some generally useful CD-ROM information -- mostly based on the above */ -#define CD_MINS 74 /* max. minutes per CD, not really a limit */ -#define CD_SECS 60 /* seconds per minute */ -#define CD_FRAMES 75 /* frames per second */ -#define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */ -#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */ -#define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */ -#define CD_NUM_OF_CHUNKS 98 /* chunks per frame */ -#define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */ -#define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */ -#define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */ -#define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */ -#define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */ -#define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */ -#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */ -#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */ -#define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ -/* most drives don't deliver everything: */ -#define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/ -#define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/ - -#define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */ -#define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */ -#define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */ - -/* CD-ROM address types (cdrom_tocentry.cdte_format) */ -#define CDROM_LBA 0x01 /* "logical block": first frame is #0 */ -#define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */ - -/* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */ -#define CDROM_DATA_TRACK 0x04 - -/* The leadout track is always 0xAA, regardless of # of tracks on disc */ -#define CDROM_LEADOUT 0xAA - -/* audio states (from SCSI-2, but seen with other drives, too) */ -#define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */ -#define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */ -#define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */ -#define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */ -#define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */ -#define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */ - -/* capability flags used with the uniform CD-ROM driver */ -#define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */ -#define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */ -#define CDC_LOCK 0x4 /* disable manual eject */ -#define CDC_SELECT_SPEED 0x8 /* programmable speed */ -#define CDC_SELECT_DISC 0x10 /* select disc from juke-box */ -#define CDC_MULTI_SESSION 0x20 /* read sessions>1 */ -#define CDC_MCN 0x40 /* Medium Catalog Number */ -#define CDC_MEDIA_CHANGED 0x80 /* media changed */ -#define CDC_PLAY_AUDIO 0x100 /* audio functions */ -#define CDC_RESET 0x200 /* hard reset device */ -#define CDC_IOCTLS 0x400 /* driver has non-standard ioctls */ -#define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */ -#define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */ -#define CDC_CD_R 0x2000 /* drive is a CD-R */ -#define CDC_CD_RW 0x4000 /* drive is a CD-RW */ -#define CDC_DVD 0x8000 /* drive is a DVD */ -#define CDC_DVD_R 0x10000 /* drive can write DVD-R */ -#define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */ -#define CDC_MO_DRIVE 0x40000 /* drive is an MO device */ - -/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */ -#define CDS_NO_INFO 0 /* if not implemented */ -#define CDS_NO_DISC 1 -#define CDS_TRAY_OPEN 2 -#define CDS_DRIVE_NOT_READY 3 -#define CDS_DISC_OK 4 - -/* return values for the CDROM_DISC_STATUS ioctl */ -/* can also return CDS_NO_[INFO|DISC], from above */ -#define CDS_AUDIO 100 -#define CDS_DATA_1 101 -#define CDS_DATA_2 102 -#define CDS_XA_2_1 103 -#define CDS_XA_2_2 104 -#define CDS_MIXED 105 - -/* User-configurable behavior options for the uniform CD-ROM driver */ -#define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */ -#define CDO_AUTO_EJECT 0x2 /* open tray on last release() */ -#define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */ -#define CDO_LOCK 0x8 /* lock tray on open files */ -#define CDO_CHECK_TYPE 0x10 /* check type on open for data */ - -/* Special codes used when specifying changer slots. */ -#define CDSL_NONE ((int) (~0U>>1)-1) -#define CDSL_CURRENT ((int) (~0U>>1)) - -/* For partition based multisession access. IDE can handle 64 partitions - * per drive - SCSI CD-ROM's use minors to differentiate between the - * various drives, so we can't do multisessions the same way there. - * Use the -o session=x option to mount on them. - */ -#define CD_PART_MAX 64 -#define CD_PART_MASK (CD_PART_MAX - 1) - -/********************************************************************* - * Generic Packet commands, MMC commands, and such - *********************************************************************/ - - /* The generic packet command opcodes for CD/DVD Logical Units, - * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ -#define GPCMD_BLANK 0xa1 -#define GPCMD_CLOSE_TRACK 0x5b -#define GPCMD_FLUSH_CACHE 0x35 -#define GPCMD_FORMAT_UNIT 0x04 -#define GPCMD_GET_CONFIGURATION 0x46 -#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a -#define GPCMD_GET_PERFORMANCE 0xac -#define GPCMD_INQUIRY 0x12 -#define GPCMD_LOAD_UNLOAD 0xa6 -#define GPCMD_MECHANISM_STATUS 0xbd -#define GPCMD_MODE_SELECT_10 0x55 -#define GPCMD_MODE_SENSE_10 0x5a -#define GPCMD_PAUSE_RESUME 0x4b -#define GPCMD_PLAY_AUDIO_10 0x45 -#define GPCMD_PLAY_AUDIO_MSF 0x47 -#define GPCMD_PLAY_AUDIO_TI 0x48 -#define GPCMD_PLAY_CD 0xbc -#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e -#define GPCMD_READ_10 0x28 -#define GPCMD_READ_12 0xa8 -#define GPCMD_READ_CDVD_CAPACITY 0x25 -#define GPCMD_READ_CD 0xbe -#define GPCMD_READ_CD_MSF 0xb9 -#define GPCMD_READ_DISC_INFO 0x51 -#define GPCMD_READ_DVD_STRUCTURE 0xad -#define GPCMD_READ_FORMAT_CAPACITIES 0x23 -#define GPCMD_READ_HEADER 0x44 -#define GPCMD_READ_TRACK_RZONE_INFO 0x52 -#define GPCMD_READ_SUBCHANNEL 0x42 -#define GPCMD_READ_TOC_PMA_ATIP 0x43 -#define GPCMD_REPAIR_RZONE_TRACK 0x58 -#define GPCMD_REPORT_KEY 0xa4 -#define GPCMD_REQUEST_SENSE 0x03 -#define GPCMD_RESERVE_RZONE_TRACK 0x53 -#define GPCMD_SCAN 0xba -#define GPCMD_SEEK 0x2b -#define GPCMD_SEND_DVD_STRUCTURE 0xad -#define GPCMD_SEND_EVENT 0xa2 -#define GPCMD_SEND_KEY 0xa3 -#define GPCMD_SEND_OPC 0x54 -#define GPCMD_SET_READ_AHEAD 0xa7 -#define GPCMD_SET_STREAMING 0xb6 -#define GPCMD_START_STOP_UNIT 0x1b -#define GPCMD_STOP_PLAY_SCAN 0x4e -#define GPCMD_TEST_UNIT_READY 0x00 -#define GPCMD_VERIFY_10 0x2f -#define GPCMD_WRITE_10 0x2a -#define GPCMD_WRITE_AND_VERIFY_10 0x2e -/* This is listed as optional in ATAPI 2.6, but is (curiously) - * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji - * Table 377 as an MMC command for SCSi devices though... Most ATAPI - * drives support it. */ -#define GPCMD_SET_SPEED 0xbb -/* This seems to be a SCSI specific CD-ROM opcode - * to play data at track/index */ -#define GPCMD_PLAYAUDIO_TI 0x48 -/* - * From MS Media Status Notification Support Specification. For - * older drives only. - */ -#define GPCMD_GET_MEDIA_STATUS 0xda - -/* Mode page codes for mode sense/set */ -#define GPMODE_R_W_ERROR_PAGE 0x01 -#define GPMODE_WRITE_PARMS_PAGE 0x05 -#define GPMODE_AUDIO_CTL_PAGE 0x0e -#define GPMODE_POWER_PAGE 0x1a -#define GPMODE_FAULT_FAIL_PAGE 0x1c -#define GPMODE_TO_PROTECT_PAGE 0x1d -#define GPMODE_CAPABILITIES_PAGE 0x2a -#define GPMODE_ALL_PAGES 0x3f -/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor - * of MODE_SENSE_POWER_PAGE */ -#define GPMODE_CDROM_PAGE 0x0d - - - -/* DVD struct types */ -#define DVD_STRUCT_PHYSICAL 0x00 -#define DVD_STRUCT_COPYRIGHT 0x01 -#define DVD_STRUCT_DISCKEY 0x02 -#define DVD_STRUCT_BCA 0x03 -#define DVD_STRUCT_MANUFACT 0x04 - -struct dvd_layer { - __u8 book_version : 4; - __u8 book_type : 4; - __u8 min_rate : 4; - __u8 disc_size : 4; - __u8 layer_type : 4; - __u8 track_path : 1; - __u8 nlayers : 2; - __u8 track_density : 4; - __u8 linear_density : 4; - __u8 bca : 1; - __u32 start_sector; - __u32 end_sector; - __u32 end_sector_l0; -}; - -#define DVD_LAYERS 4 - -struct dvd_physical { - __u8 type; - __u8 layer_num; - struct dvd_layer layer[DVD_LAYERS]; -}; - -struct dvd_copyright { - __u8 type; - - __u8 layer_num; - __u8 cpst; - __u8 rmi; -}; - -struct dvd_disckey { - __u8 type; - - unsigned agid : 2; - __u8 value[2048]; -}; - -struct dvd_bca { - __u8 type; - - int len; - __u8 value[188]; -}; - -struct dvd_manufact { - __u8 type; - - __u8 layer_num; - int len; - __u8 value[2048]; -}; - -typedef union { - __u8 type; - - struct dvd_physical physical; - struct dvd_copyright copyright; - struct dvd_disckey disckey; - struct dvd_bca bca; - struct dvd_manufact manufact; -} dvd_struct; - -/* - * DVD authentication ioctl - */ - -/* Authentication states */ -#define DVD_LU_SEND_AGID 0 -#define DVD_HOST_SEND_CHALLENGE 1 -#define DVD_LU_SEND_KEY1 2 -#define DVD_LU_SEND_CHALLENGE 3 -#define DVD_HOST_SEND_KEY2 4 - -/* Termination states */ -#define DVD_AUTH_ESTABLISHED 5 -#define DVD_AUTH_FAILURE 6 - -/* Other functions */ -#define DVD_LU_SEND_TITLE_KEY 7 -#define DVD_LU_SEND_ASF 8 -#define DVD_INVALIDATE_AGID 9 -#define DVD_LU_SEND_RPC_STATE 10 -#define DVD_HOST_SEND_RPC_STATE 11 - -/* State data */ -typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */ -typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */ - -struct dvd_lu_send_agid { - __u8 type; - unsigned agid : 2; -}; - -struct dvd_host_send_challenge { - __u8 type; - unsigned agid : 2; - - dvd_challenge chal; -}; - -struct dvd_send_key { - __u8 type; - unsigned agid : 2; - - dvd_key key; -}; - -struct dvd_lu_send_challenge { - __u8 type; - unsigned agid : 2; - - dvd_challenge chal; -}; - -#define DVD_CPM_NO_COPYRIGHT 0 -#define DVD_CPM_COPYRIGHTED 1 - -#define DVD_CP_SEC_NONE 0 -#define DVD_CP_SEC_EXIST 1 - -#define DVD_CGMS_UNRESTRICTED 0 -#define DVD_CGMS_SINGLE 2 -#define DVD_CGMS_RESTRICTED 3 - -struct dvd_lu_send_title_key { - __u8 type; - unsigned agid : 2; - - dvd_key title_key; - int lba; - unsigned cpm : 1; - unsigned cp_sec : 1; - unsigned cgms : 2; -}; - -struct dvd_lu_send_asf { - __u8 type; - unsigned agid : 2; - - unsigned asf : 1; -}; - -struct dvd_host_send_rpcstate { - __u8 type; - __u8 pdrc; -}; - -struct dvd_lu_send_rpcstate { - __u8 type : 2; - __u8 vra : 3; - __u8 ucca : 3; - __u8 region_mask; - __u8 rpc_scheme; -}; - -typedef union { - __u8 type; - - struct dvd_lu_send_agid lsa; - struct dvd_host_send_challenge hsc; - struct dvd_send_key lsk; - struct dvd_lu_send_challenge lsc; - struct dvd_send_key hsk; - struct dvd_lu_send_title_key lstk; - struct dvd_lu_send_asf lsasf; - struct dvd_host_send_rpcstate hrpcs; - struct dvd_lu_send_rpcstate lrpcs; -} dvd_authinfo; - -struct request_sense { -#if defined(__BIG_ENDIAN_BITFIELD) - __u8 valid : 1; - __u8 error_code : 7; -#elif defined(__LITTLE_ENDIAN_BITFIELD) - __u8 error_code : 7; - __u8 valid : 1; -#endif - __u8 segment_number; -#if defined(__BIG_ENDIAN_BITFIELD) - __u8 reserved1 : 2; - __u8 ili : 1; - __u8 reserved2 : 1; - __u8 sense_key : 4; -#elif defined(__LITTLE_ENDIAN_BITFIELD) - __u8 sense_key : 4; - __u8 reserved2 : 1; - __u8 ili : 1; - __u8 reserved1 : 2; -#endif - __u8 information[4]; - __u8 add_sense_len; - __u8 command_info[4]; - __u8 asc; - __u8 ascq; - __u8 fruc; - __u8 sks[3]; - __u8 asb[46]; -}; - -#ifdef __KERNEL__ #include /* not really needed, later.. */ #include @@ -1031,7 +328,5 @@ typedef struct { __u8 rpc_scheme; __u8 reserved3; } rpc_state_t; - -#endif /* End of kernel only stuff */ #endif /* _LINUX_CDROM_H */ Index: usr/include/linux/cdrom.h =================================================================== RCS file: usr/include/linux/cdrom.h diff -N usr/include/linux/cdrom.h --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ usr/include/linux/cdrom.h 2 Sep 2003 19:07:48 -0000 @@ -0,0 +1,719 @@ +/* + * -- + * General header file for linux CD-ROM drivers + * Copyright (C) 1992 David Giller, rafetmad@oxy.edu + * 1994, 1995 Eberhard Moenkeberg, emoenke@gwdg.de + * 1996 David van Leeuwen, david@tm.tno.nl + * 1997, 1998 Erik Andersen, andersee@debian.org + * 1998-2000 Jens Axboe, axboe@suse.de + */ + +#ifndef _LUSER_CDROM_H +#define _LUSER_CDROM_H + +#include +#include + +/******************************************************* + * As of Linux 2.1.x, all Linux CD-ROM application programs will use this + * (and only this) include file. It is my hope to provide Linux with + * a uniform interface between software accessing CD-ROMs and the various + * device drivers that actually talk to the drives. There may still be + * 23 different kinds of strange CD-ROM drives, but at least there will + * now be one, and only one, Linux CD-ROM interface. + * + * Additionally, as of Linux 2.1.x, all Linux application programs + * should use the O_NONBLOCK option when opening a CD-ROM device + * for subsequent ioctl commands. This allows for neat system errors + * like "No medium found" or "Wrong medium type" upon attempting to + * mount or play an empty slot, mount an audio disc, or play a data disc. + * Generally, changing an application program to support O_NONBLOCK + * is as easy as the following: + * - drive = open("/dev/cdrom", O_RDONLY); + * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK); + * It is worth the small change. + * + * Patches for many common CD programs (provided by David A. van Leeuwen) + * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/ + * + *******************************************************/ + +/* When a driver supports a certain function, but the cdrom drive we are + * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will + * borrow the "Operation not supported" error from the network folks to + * accomplish this. Maybe someday we will get a more targeted error code, + * but this will do for now... */ +#define EDRIVE_CANT_DO_THIS EOPNOTSUPP + +/******************************************************* + * The CD-ROM IOCTL commands -- these should be supported by + * all the various cdrom drivers. For the CD-ROM ioctls, we + * will commandeer byte 0x53, or 'S'. + *******************************************************/ +#define CDROMPAUSE 0x5301 /* Pause Audio Operation */ +#define CDROMRESUME 0x5302 /* Resume paused Audio Operation */ +#define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */ +#define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index + (struct cdrom_ti) */ +#define CDROMREADTOCHDR 0x5305 /* Read TOC header + (struct cdrom_tochdr) */ +#define CDROMREADTOCENTRY 0x5306 /* Read TOC entry + (struct cdrom_tocentry) */ +#define CDROMSTOP 0x5307 /* Stop the cdrom drive */ +#define CDROMSTART 0x5308 /* Start the cdrom drive */ +#define CDROMEJECT 0x5309 /* Ejects the cdrom media */ +#define CDROMVOLCTRL 0x530a /* Control output volume + (struct cdrom_volctrl) */ +#define CDROMSUBCHNL 0x530b /* Read subchannel data + (struct cdrom_subchnl) */ +#define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes) + (struct cdrom_read) */ +#define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes) + (struct cdrom_read) */ +#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */ +#define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */ +#define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session + address of multi session disks + (struct cdrom_multisession) */ +#define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code" + if available (struct cdrom_mcn) */ +#define CDROM_GET_UPC CDROM_GET_MCN /* This one is depricated, + but here anyway for compatibility */ +#define CDROMRESET 0x5312 /* hard-reset the drive */ +#define CDROMVOLREAD 0x5313 /* Get the drive's volume setting + (struct cdrom_volctrl) */ +#define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes) + (struct cdrom_read) */ +/* + * These ioctls are used only used in aztcd.c and optcd.c + */ +#define CDROMREADCOOKED 0x5315 /* read data in cooked mode */ +#define CDROMSEEK 0x5316 /* seek msf address */ + +/* + * This ioctl is only used by the scsi-cd driver. + It is for playing audio in logical block addressing mode. + */ +#define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */ + +/* + * These ioctls are only used in optcd.c + */ +#define CDROMREADALL 0x5318 /* read all 2646 bytes */ + +/* + * These ioctls are (now) only in ide-cd.c for controlling + * drive spindown time. They should be implemented in the + * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10, + * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE... + * -Erik + */ +#define CDROMGETSPINDOWN 0x531d +#define CDROMSETSPINDOWN 0x531e + +/* + * These ioctls are implemented through the uniform CD-ROM driver + * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM + * drivers are eventually ported to the uniform CD-ROM driver interface. + */ +#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */ +#define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */ +#define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */ +#define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */ +#define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */ +#define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */ +#define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */ +#define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */ +#define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */ +#define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */ +#define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */ +#define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */ + +/* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386. + * Future CDROM ioctls should be kept below 0x537F + */ + +/* This ioctl is only used by sbpcd at the moment */ +#define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */ + /* conflict with SCSI_IOCTL_GET_IDLUN */ + +/* DVD-ROM Specific ioctls */ +#define DVD_READ_STRUCT 0x5390 /* Read structure */ +#define DVD_WRITE_STRUCT 0x5391 /* Write structure */ +#define DVD_AUTH 0x5392 /* Authentication */ + +#define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */ +#define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */ +#define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */ + +/******************************************************* + * CDROM IOCTL structures + *******************************************************/ + +/* Address in MSF format */ +struct cdrom_msf0 +{ + __u8 minute; + __u8 second; + __u8 frame; +}; + +/* Address in either MSF or logical format */ +union cdrom_addr +{ + struct cdrom_msf0 msf; + int lba; +}; + +/* This struct is used by the CDROMPLAYMSF ioctl */ +struct cdrom_msf +{ + __u8 cdmsf_min0; /* start minute */ + __u8 cdmsf_sec0; /* start second */ + __u8 cdmsf_frame0; /* start frame */ + __u8 cdmsf_min1; /* end minute */ + __u8 cdmsf_sec1; /* end second */ + __u8 cdmsf_frame1; /* end frame */ +}; + +/* This struct is used by the CDROMPLAYTRKIND ioctl */ +struct cdrom_ti +{ + __u8 cdti_trk0; /* start track */ + __u8 cdti_ind0; /* start index */ + __u8 cdti_trk1; /* end track */ + __u8 cdti_ind1; /* end index */ +}; + +/* This struct is used by the CDROMREADTOCHDR ioctl */ +struct cdrom_tochdr +{ + __u8 cdth_trk0; /* start track */ + __u8 cdth_trk1; /* end track */ +}; + +/* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */ +struct cdrom_volctrl +{ + __u8 channel0; + __u8 channel1; + __u8 channel2; + __u8 channel3; +}; + +/* This struct is used by the CDROMSUBCHNL ioctl */ +struct cdrom_subchnl +{ + __u8 cdsc_format; + __u8 cdsc_audiostatus; + __u8 cdsc_adr: 4; + __u8 cdsc_ctrl: 4; + __u8 cdsc_trk; + __u8 cdsc_ind; + union cdrom_addr cdsc_absaddr; + union cdrom_addr cdsc_reladdr; +}; + + +/* This struct is used by the CDROMREADTOCENTRY ioctl */ +struct cdrom_tocentry +{ + __u8 cdte_track; + __u8 cdte_adr :4; + __u8 cdte_ctrl :4; + __u8 cdte_format; + union cdrom_addr cdte_addr; + __u8 cdte_datamode; +}; + +/* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */ +struct cdrom_read +{ + int cdread_lba; + char *cdread_bufaddr; + int cdread_buflen; +}; + +/* This struct is used by the CDROMREADAUDIO ioctl */ +struct cdrom_read_audio +{ + union cdrom_addr addr; /* frame address */ + __u8 addr_format; /* CDROM_LBA or CDROM_MSF */ + int nframes; /* number of 2352-byte-frames to read at once */ + __u8 *buf; /* frame buffer (size: nframes*2352 bytes) */ +}; + +/* This struct is used with the CDROMMULTISESSION ioctl */ +struct cdrom_multisession +{ + union cdrom_addr addr; /* frame address: start-of-last-session + (not the new "frame 16"!). Only valid + if the "xa_flag" is true. */ + __u8 xa_flag; /* 1: "is XA disk" */ + __u8 addr_format; /* CDROM_LBA or CDROM_MSF */ +}; + +/* This struct is used with the CDROM_GET_MCN ioctl. + * Very few audio discs actually have Universal Product Code information, + * which should just be the Medium Catalog Number on the box. Also note + * that the way the codeis written on CD is _not_ uniform across all discs! + */ +struct cdrom_mcn +{ + __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */ +}; + +/* This is used by the CDROMPLAYBLK ioctl */ +struct cdrom_blk +{ + unsigned from; + unsigned short len; +}; + +#define CDROM_PACKET_SIZE 12 + +#define CGC_DATA_UNKNOWN 0 +#define CGC_DATA_WRITE 1 +#define CGC_DATA_READ 2 +#define CGC_DATA_NONE 3 + +/* for CDROM_PACKET_COMMAND ioctl */ +struct cdrom_generic_command +{ + unsigned char cmd[CDROM_PACKET_SIZE]; + unsigned char *buffer; + unsigned int buflen; + int stat; + struct request_sense *sense; + unsigned char data_direction; + int quiet; + int timeout; + void *reserved[1]; +}; + + +/* + * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, + * 2340, or 2352 bytes long. + +* Sector types of the standard CD-ROM data formats: + * + * format sector type user data size (bytes) + * ----------------------------------------------------------------------------- + * 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW) + * 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE) + * 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0) + * 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE) + * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes) + * + * + * The layout of the standard CD-ROM data formats: + * ----------------------------------------------------------------------------- + * - audio (red): | audio_sample_bytes | + * | 2352 | + * + * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC | + * | 12 - 4 - 2048 - 4 - 8 - 276 | + * + * - data (yellow, mode2): | sync - head - data | + * | 12 - 4 - 2336 | + * + * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC | + * | 12 - 4 - 8 - 2048 - 4 - 276 | + * + * - XA data (green, mode2 form2): | sync - head - sub - data - Spare | + * | 12 - 4 - 8 - 2324 - 4 | + * + */ + +/* Some generally useful CD-ROM information -- mostly based on the above */ +#define CD_MINS 74 /* max. minutes per CD, not really a limit */ +#define CD_SECS 60 /* seconds per minute */ +#define CD_FRAMES 75 /* frames per second */ +#define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */ +#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */ +#define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */ +#define CD_NUM_OF_CHUNKS 98 /* chunks per frame */ +#define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */ +#define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */ +#define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */ +#define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */ +#define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */ +#define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */ +#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */ +#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */ +#define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ +/* most drives don't deliver everything: */ +#define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/ +#define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/ + +#define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */ +#define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */ +#define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */ + +/* CD-ROM address types (cdrom_tocentry.cdte_format) */ +#define CDROM_LBA 0x01 /* "logical block": first frame is #0 */ +#define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */ + +/* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */ +#define CDROM_DATA_TRACK 0x04 + +/* The leadout track is always 0xAA, regardless of # of tracks on disc */ +#define CDROM_LEADOUT 0xAA + +/* audio states (from SCSI-2, but seen with other drives, too) */ +#define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */ +#define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */ +#define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */ +#define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */ +#define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */ +#define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */ + +/* capability flags used with the uniform CD-ROM driver */ +#define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */ +#define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */ +#define CDC_LOCK 0x4 /* disable manual eject */ +#define CDC_SELECT_SPEED 0x8 /* programmable speed */ +#define CDC_SELECT_DISC 0x10 /* select disc from juke-box */ +#define CDC_MULTI_SESSION 0x20 /* read sessions>1 */ +#define CDC_MCN 0x40 /* Medium Catalog Number */ +#define CDC_MEDIA_CHANGED 0x80 /* media changed */ +#define CDC_PLAY_AUDIO 0x100 /* audio functions */ +#define CDC_RESET 0x200 /* hard reset device */ +#define CDC_IOCTLS 0x400 /* driver has non-standard ioctls */ +#define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */ +#define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */ +#define CDC_CD_R 0x2000 /* drive is a CD-R */ +#define CDC_CD_RW 0x4000 /* drive is a CD-RW */ +#define CDC_DVD 0x8000 /* drive is a DVD */ +#define CDC_DVD_R 0x10000 /* drive can write DVD-R */ +#define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */ +#define CDC_MO_DRIVE 0x40000 /* drive is an MO device */ + +/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */ +#define CDS_NO_INFO 0 /* if not implemented */ +#define CDS_NO_DISC 1 +#define CDS_TRAY_OPEN 2 +#define CDS_DRIVE_NOT_READY 3 +#define CDS_DISC_OK 4 + +/* return values for the CDROM_DISC_STATUS ioctl */ +/* can also return CDS_NO_[INFO|DISC], from above */ +#define CDS_AUDIO 100 +#define CDS_DATA_1 101 +#define CDS_DATA_2 102 +#define CDS_XA_2_1 103 +#define CDS_XA_2_2 104 +#define CDS_MIXED 105 + +/* User-configurable behavior options for the uniform CD-ROM driver */ +#define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */ +#define CDO_AUTO_EJECT 0x2 /* open tray on last release() */ +#define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */ +#define CDO_LOCK 0x8 /* lock tray on open files */ +#define CDO_CHECK_TYPE 0x10 /* check type on open for data */ + +/* Special codes used when specifying changer slots. */ +#define CDSL_NONE ((int) (~0U>>1)-1) +#define CDSL_CURRENT ((int) (~0U>>1)) + +/* For partition based multisession access. IDE can handle 64 partitions + * per drive - SCSI CD-ROM's use minors to differentiate between the + * various drives, so we can't do multisessions the same way there. + * Use the -o session=x option to mount on them. + */ +#define CD_PART_MAX 64 +#define CD_PART_MASK (CD_PART_MAX - 1) + +/********************************************************************* + * Generic Packet commands, MMC commands, and such + *********************************************************************/ + + /* The generic packet command opcodes for CD/DVD Logical Units, + * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ +#define GPCMD_BLANK 0xa1 +#define GPCMD_CLOSE_TRACK 0x5b +#define GPCMD_FLUSH_CACHE 0x35 +#define GPCMD_FORMAT_UNIT 0x04 +#define GPCMD_GET_CONFIGURATION 0x46 +#define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a +#define GPCMD_GET_PERFORMANCE 0xac +#define GPCMD_INQUIRY 0x12 +#define GPCMD_LOAD_UNLOAD 0xa6 +#define GPCMD_MECHANISM_STATUS 0xbd +#define GPCMD_MODE_SELECT_10 0x55 +#define GPCMD_MODE_SENSE_10 0x5a +#define GPCMD_PAUSE_RESUME 0x4b +#define GPCMD_PLAY_AUDIO_10 0x45 +#define GPCMD_PLAY_AUDIO_MSF 0x47 +#define GPCMD_PLAY_AUDIO_TI 0x48 +#define GPCMD_PLAY_CD 0xbc +#define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e +#define GPCMD_READ_10 0x28 +#define GPCMD_READ_12 0xa8 +#define GPCMD_READ_CDVD_CAPACITY 0x25 +#define GPCMD_READ_CD 0xbe +#define GPCMD_READ_CD_MSF 0xb9 +#define GPCMD_READ_DISC_INFO 0x51 +#define GPCMD_READ_DVD_STRUCTURE 0xad +#define GPCMD_READ_FORMAT_CAPACITIES 0x23 +#define GPCMD_READ_HEADER 0x44 +#define GPCMD_READ_TRACK_RZONE_INFO 0x52 +#define GPCMD_READ_SUBCHANNEL 0x42 +#define GPCMD_READ_TOC_PMA_ATIP 0x43 +#define GPCMD_REPAIR_RZONE_TRACK 0x58 +#define GPCMD_REPORT_KEY 0xa4 +#define GPCMD_REQUEST_SENSE 0x03 +#define GPCMD_RESERVE_RZONE_TRACK 0x53 +#define GPCMD_SCAN 0xba +#define GPCMD_SEEK 0x2b +#define GPCMD_SEND_DVD_STRUCTURE 0xad +#define GPCMD_SEND_EVENT 0xa2 +#define GPCMD_SEND_KEY 0xa3 +#define GPCMD_SEND_OPC 0x54 +#define GPCMD_SET_READ_AHEAD 0xa7 +#define GPCMD_SET_STREAMING 0xb6 +#define GPCMD_START_STOP_UNIT 0x1b +#define GPCMD_STOP_PLAY_SCAN 0x4e +#define GPCMD_TEST_UNIT_READY 0x00 +#define GPCMD_VERIFY_10 0x2f +#define GPCMD_WRITE_10 0x2a +#define GPCMD_WRITE_AND_VERIFY_10 0x2e +/* This is listed as optional in ATAPI 2.6, but is (curiously) + * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji + * Table 377 as an MMC command for SCSi devices though... Most ATAPI + * drives support it. */ +#define GPCMD_SET_SPEED 0xbb +/* This seems to be a SCSI specific CD-ROM opcode + * to play data at track/index */ +#define GPCMD_PLAYAUDIO_TI 0x48 +/* + * From MS Media Status Notification Support Specification. For + * older drives only. + */ +#define GPCMD_GET_MEDIA_STATUS 0xda + +/* Mode page codes for mode sense/set */ +#define GPMODE_R_W_ERROR_PAGE 0x01 +#define GPMODE_WRITE_PARMS_PAGE 0x05 +#define GPMODE_AUDIO_CTL_PAGE 0x0e +#define GPMODE_POWER_PAGE 0x1a +#define GPMODE_FAULT_FAIL_PAGE 0x1c +#define GPMODE_TO_PROTECT_PAGE 0x1d +#define GPMODE_CAPABILITIES_PAGE 0x2a +#define GPMODE_ALL_PAGES 0x3f +/* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor + * of MODE_SENSE_POWER_PAGE */ +#define GPMODE_CDROM_PAGE 0x0d + + + +/* DVD struct types */ +#define DVD_STRUCT_PHYSICAL 0x00 +#define DVD_STRUCT_COPYRIGHT 0x01 +#define DVD_STRUCT_DISCKEY 0x02 +#define DVD_STRUCT_BCA 0x03 +#define DVD_STRUCT_MANUFACT 0x04 + +struct dvd_layer { + __u8 book_version : 4; + __u8 book_type : 4; + __u8 min_rate : 4; + __u8 disc_size : 4; + __u8 layer_type : 4; + __u8 track_path : 1; + __u8 nlayers : 2; + __u8 track_density : 4; + __u8 linear_density : 4; + __u8 bca : 1; + __u32 start_sector; + __u32 end_sector; + __u32 end_sector_l0; +}; + +#define DVD_LAYERS 4 + +struct dvd_physical { + __u8 type; + __u8 layer_num; + struct dvd_layer layer[DVD_LAYERS]; +}; + +struct dvd_copyright { + __u8 type; + + __u8 layer_num; + __u8 cpst; + __u8 rmi; +}; + +struct dvd_disckey { + __u8 type; + + unsigned agid : 2; + __u8 value[2048]; +}; + +struct dvd_bca { + __u8 type; + + int len; + __u8 value[188]; +}; + +struct dvd_manufact { + __u8 type; + + __u8 layer_num; + int len; + __u8 value[2048]; +}; + +typedef union { + __u8 type; + + struct dvd_physical physical; + struct dvd_copyright copyright; + struct dvd_disckey disckey; + struct dvd_bca bca; + struct dvd_manufact manufact; +} dvd_struct; + +/* + * DVD authentication ioctl + */ + +/* Authentication states */ +#define DVD_LU_SEND_AGID 0 +#define DVD_HOST_SEND_CHALLENGE 1 +#define DVD_LU_SEND_KEY1 2 +#define DVD_LU_SEND_CHALLENGE 3 +#define DVD_HOST_SEND_KEY2 4 + +/* Termination states */ +#define DVD_AUTH_ESTABLISHED 5 +#define DVD_AUTH_FAILURE 6 + +/* Other functions */ +#define DVD_LU_SEND_TITLE_KEY 7 +#define DVD_LU_SEND_ASF 8 +#define DVD_INVALIDATE_AGID 9 +#define DVD_LU_SEND_RPC_STATE 10 +#define DVD_HOST_SEND_RPC_STATE 11 + +/* State data */ +typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */ +typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */ + +struct dvd_lu_send_agid { + __u8 type; + unsigned agid : 2; +}; + +struct dvd_host_send_challenge { + __u8 type; + unsigned agid : 2; + + dvd_challenge chal; +}; + +struct dvd_send_key { + __u8 type; + unsigned agid : 2; + + dvd_key key; +}; + +struct dvd_lu_send_challenge { + __u8 type; + unsigned agid : 2; + + dvd_challenge chal; +}; + +#define DVD_CPM_NO_COPYRIGHT 0 +#define DVD_CPM_COPYRIGHTED 1 + +#define DVD_CP_SEC_NONE 0 +#define DVD_CP_SEC_EXIST 1 + +#define DVD_CGMS_UNRESTRICTED 0 +#define DVD_CGMS_SINGLE 2 +#define DVD_CGMS_RESTRICTED 3 + +struct dvd_lu_send_title_key { + __u8 type; + unsigned agid : 2; + + dvd_key title_key; + int lba; + unsigned cpm : 1; + unsigned cp_sec : 1; + unsigned cgms : 2; +}; + +struct dvd_lu_send_asf { + __u8 type; + unsigned agid : 2; + + unsigned asf : 1; +}; + +struct dvd_host_send_rpcstate { + __u8 type; + __u8 pdrc; +}; + +struct dvd_lu_send_rpcstate { + __u8 type : 2; + __u8 vra : 3; + __u8 ucca : 3; + __u8 region_mask; + __u8 rpc_scheme; +}; + +typedef union { + __u8 type; + + struct dvd_lu_send_agid lsa; + struct dvd_host_send_challenge hsc; + struct dvd_send_key lsk; + struct dvd_lu_send_challenge lsc; + struct dvd_send_key hsk; + struct dvd_lu_send_title_key lstk; + struct dvd_lu_send_asf lsasf; + struct dvd_host_send_rpcstate hrpcs; + struct dvd_lu_send_rpcstate lrpcs; +} dvd_authinfo; + +struct request_sense { +#if defined(__BIG_ENDIAN_BITFIELD) + __u8 valid : 1; + __u8 error_code : 7; +#elif defined(__LITTLE_ENDIAN_BITFIELD) + __u8 error_code : 7; + __u8 valid : 1; +#endif + __u8 segment_number; +#if defined(__BIG_ENDIAN_BITFIELD) + __u8 reserved1 : 2; + __u8 ili : 1; + __u8 reserved2 : 1; + __u8 sense_key : 4; +#elif defined(__LITTLE_ENDIAN_BITFIELD) + __u8 sense_key : 4; + __u8 reserved2 : 1; + __u8 ili : 1; + __u8 reserved1 : 2; +#endif + __u8 information[4]; + __u8 add_sense_len; + __u8 command_info[4]; + __u8 asc; + __u8 ascq; + __u8 fruc; + __u8 sks[3]; + __u8 asb[46]; +}; + +#endif /* _LUSER_CDROM_H */ -- "It's not Hollywood. War is real, war is primarily not about defeat or victory, it is about death. I've seen thousands and thousands of dead bodies. Do you think I want to have an academic debate on this subject?" -- Robert Fisk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/