patch-2.1.70 linux/include/linux/cdrom.h
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- Lines: 788
- Date:
Tue Dec 2 11:41:45 1997
- Orig file:
v2.1.69/linux/include/linux/cdrom.h
- Orig date:
Mon Apr 14 16:28:25 1997
diff -u --recursive --new-file v2.1.69/linux/include/linux/cdrom.h linux/include/linux/cdrom.h
@@ -1,108 +1,140 @@
/*
* -- <linux/cdrom.h>
- * general (not only SCSI) header library for linux CDROM drivers
- * (C) 1992 David Giller rafetmad@oxy.edu
- * 1994, 1995 Eberhard Moenkeberg emoenke@gwdg.de
- *
+ * 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 Erik Andersen, andersee@debian.org
*/
-
+
#ifndef _LINUX_CDROM_H
#define _LINUX_CDROM_H
+/*******************************************************
+ * As of Linux 2.1.x, all Linux CD-ROM application programs will use this
+ * (and only this) include file. It is my hope to provide Linux with
+ * a uniform interface between software accessing CD-ROMs and the various
+ * device drivers that actually talk to the drives. There may still be
+ * 23 different kinds of strange CD-ROM drives, but at least there will
+ * now be one, and only one, Linux CD-ROM interface.
+ *
+ * Additionally, as of Linux 2.1.x, all Linux application programs
+ * should use the O_NONBLOCK option when opening a CD-ROM device
+ * for subsequent ioctl commands. This allows for neat system errors
+ * like "No medium found" or "Wrong medium type" upon attempting to
+ * mount or play an empty slot, mount an audio disc, or play a data disc.
+ * Generally, changing an application program to support O_NONBLOCK
+ * is as easy as the following:
+ * - drive = open("/dev/cdrom", O_RDONLY);
+ * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
+ * It is worth the small change.
+ *
+ * Patches for many common CD programs (provided by David A. van Leeuwen)
+ * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
+ *
+ *******************************************************/
+
+/* When a driver supports a certain function, but the cdrom drive we are
+ * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will
+ * borrow the "Operation not supported" error from the network folks to
+ * accomplish this. Maybe someday we will get a more targeted error code,
+ * but this will do for now... */
+#define EDRIVE_CANT_DO_THIS EOPNOTSUPP
+
+/*******************************************************
+ * The CD-ROM IOCTL commands -- these should be supported by
+ * all the various cdrom drivers. For the CD-ROM ioctls, we
+ * will commandeer byte 0x53, or 'S'.
+ *******************************************************/
+#define CDROMPAUSE 0x5301 /* Pause Audio Operation */
+#define CDROMRESUME 0x5302 /* Resume paused Audio Operation */
+#define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */
+#define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index
+ (struct cdrom_ti) */
+#define CDROMREADTOCHDR 0x5305 /* Read TOC header
+ (struct cdrom_tochdr) */
+#define CDROMREADTOCENTRY 0x5306 /* Read TOC entry
+ (struct cdrom_tocentry) */
+#define CDROMSTOP 0x5307 /* Stop the cdrom drive */
+#define CDROMSTART 0x5308 /* Start the cdrom drive */
+#define CDROMEJECT 0x5309 /* Ejects the cdrom media */
+#define CDROMVOLCTRL 0x530a /* Control output volume
+ (struct cdrom_volctrl) */
+#define CDROMSUBCHNL 0x530b /* Read subchannel data
+ (struct cdrom_subchnl) */
+#define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes)
+ (struct cdrom_read) */
+#define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes)
+ (struct cdrom_read) */
+#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
+#define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */
+#define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session
+ address of multi session disks
+ (struct cdrom_multisession) */
+#define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code"
+ if available (struct cdrom_mcn) */
+#define CDROM_GET_UPC CDROM_GET_MCN /* This one is depricated,
+ but here anyway for compatability */
+#define CDROMRESET 0x5312 /* hard-reset the drive */
+#define CDROMVOLREAD 0x5313 /* Get the drive's volume setting
+ (struct cdrom_volctrl) */
+#define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes)
+ (struct cdrom_read) */
+/*
+ * These ioctls are used only used in aztcd.c and optcd.c
+ */
+#define CDROMREADCOOKED 0x5315 /* read data in cooked mode */
+#define CDROMSEEK 0x5316 /* seek msf address */
+
/*
- * some fix numbers
+ * This ioctl is only used by the scsi-cd driver.
+ It is for playing audio in logical block addressing mode.
*/
-#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, not transfered by the drive */
-#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_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */
-#define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD)/* sync bytes + header of XA frame */
-
-#define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
-#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */
-/* 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 */
-/* Optics drive also has a 'read all' mode: */
-#define CD_FRAMESIZE_RAWER 2646 /* bytes per 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_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */
+#define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */
-#define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */
-#define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */
+/*
+ * These ioctls are used only used in optcd.c
+ */
+#define CDROMREADALL 0x5318 /* read all 2646 bytes */
+#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
-#define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */
-#define CD_NUM_OF_CHUNKS 98 /* chunks per frame */
+/*
+ * 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 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 CD_FRAMESIZE_XA CD_FRAMESIZE_RAW1 /* obsolete name */
-#define CD_BLOCK_OFFSET CD_MSF_OFFSET /* obsolete name */
+/* This ioctl is only used by sbpcd at the moment */
+#define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */
-/*
- * the raw frame layout:
- *
- * - 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 - EDC |
- * | 12 - 4 - 8 - 2324 - 4 |
- *
- * Sector types (format) - Forces the CD-ROM to read the specified sector type,
- * attempt to read any other format ends with an error
- *
- * format sector type user data size (bytes)
- * -----------------------------------------------------------------------------
- * 1 CD DA (Red Book) 2352 (CD_FRAMESIZE_RAW)
- * 2 Mode1 Form1 (Yellow Book) 2048 (CD_FRAMESIZE)
- * 3 Mode1 Form2 (Yellow Book) 2336 (CD_FRAMESIZE_RAW0)
- * 4 Mode2 Form1 (Green Book) 2048 (CD_FRAMESIZE)
- * 5 Mode2 Form2 (Green Book) 2328 (2324+4 spare bytes)
- *
- *
- * Data Selection Field (pc.c[9]) - This value controls the actual number
- * of bytes transferred from the CD-ROM
- *
- * bit 7 6 5 4 3 2 1 0
- * ----------------------------------------------------------------------------
- * | Sync | Sub | Header | User | EDC & | Error | Block | reserved
- * | | Header | | Data | ECC | Flags | Error |
- * \-------------------------------------------/\---------------/
- * | |
- * V V
- * stored on CD (2532) generated during error correction
- *
- * The maximal number of bytes returned by CD-ROM is 2646 (CD_FRAMESIZE_RAWER),
- * when pc.c[9] = 0xfa.
- *
- */
-
-
-/*
+/*******************************************************
* CDROM IOCTL structures
- */
+ *******************************************************/
-struct cdrom_blk
+/* Address in MSF format */
+struct cdrom_msf0
{
- unsigned from;
- unsigned short len;
+ u_char minute;
+ u_char second;
+ u_char 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
{
u_char cdmsf_min0; /* start minute */
@@ -113,6 +145,7 @@
u_char cdmsf_frame1; /* end frame */
};
+/* This struct is used by the CDROMPLAYTRKIND ioctl */
struct cdrom_ti
{
u_char cdti_trk0; /* start track */
@@ -121,51 +154,23 @@
u_char cdti_ind1; /* end index */
};
+/* This struct is used by the CDROMREADTOCHDR ioctl */
struct cdrom_tochdr
{
u_char cdth_trk0; /* start track */
u_char cdth_trk1; /* end track */
};
-struct cdrom_msf0 /* address in MSF format */
-{
- u_char minute;
- u_char second;
- u_char frame;
-};
-
-union cdrom_addr /* address in either MSF or logical format */
-{
- struct cdrom_msf0 msf;
- int lba;
-};
-
-struct cdrom_tocentry
+/* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
+struct cdrom_volctrl
{
- u_char cdte_track;
- u_char cdte_adr :4;
- u_char cdte_ctrl :4;
- u_char cdte_format;
- union cdrom_addr cdte_addr;
- u_char cdte_datamode;
+ u_char channel0;
+ u_char channel1;
+ u_char channel2;
+ u_char channel3;
};
-/*
- * 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
-
+/* This struct is used by the CDROMSUBCHNL ioctl */
struct cdrom_subchnl
{
u_char cdsc_format;
@@ -178,28 +183,19 @@
union cdrom_addr cdsc_reladdr;
};
-struct cdrom_mcn {
- u_char medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
-};
-
-/*
- * 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 */
-struct cdrom_volctrl
+/* This struct is used by the CDROMREADTOCENTRY ioctl */
+struct cdrom_tocentry
{
- u_char channel0;
- u_char channel1;
- u_char channel2;
- u_char channel3;
+ u_char cdte_track;
+ u_char cdte_adr :4;
+ u_char cdte_ctrl :4;
+ u_char cdte_format;
+ union cdrom_addr cdte_addr;
+ u_char cdte_datamode;
};
+/* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
struct cdrom_read
{
int cdread_lba;
@@ -207,269 +203,217 @@
int cdread_buflen;
};
-/*
- * extensions for transferring audio frames
- * currently used by sbpcd.c, cdu31a.c, ide-cd.c
- */
+/* This struct is used by the CDROMREADAUDIO ioctl */
struct cdrom_read_audio
{
union cdrom_addr addr; /* frame address */
- u_char addr_format; /* CDROM_LBA or CDROM_MSF */
- int nframes; /* number of 2352-byte-frames to read at once, limited by the drivers */
- u_char *buf; /* frame buffer (size: nframes*2352 bytes) */
+ u_char addr_format; /* CDROM_LBA or CDROM_MSF */
+ int nframes; /* number of 2352-byte-frames to read at once */
+ u_char *buf; /* frame buffer (size: nframes*2352 bytes) */
};
-/*
- * this has to be the "arg" of the CDROMMULTISESSION ioctl
- * for obtaining multi session info.
- * The returned "addr" is valid only if "xa_flag" is true.
- */
+/* 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"!)*/
- u_char xa_flag; /* 1: "is XA disk" */
- u_char addr_format; /* CDROM_LBA or CDROM_MSF */
+ union cdrom_addr addr; /* frame address: start-of-last-session
+ (not the new "frame 16"!). Only valid
+ if the "xa_flag" is true. */
+ u_char xa_flag; /* 1: "is XA disk" */
+ u_char addr_format; /* CDROM_LBA or CDROM_MSF */
};
-#ifdef FIVETWELVE
-#define CDROM_MODE1_SIZE 512
-#else
-#define CDROM_MODE1_SIZE 2048
-#endif FIVETWELVE
-#define CDROM_MODE2_SIZE 2336
-
-/*
- * CD-ROM IOCTL commands
- * For IOCTL calls, we will commandeer byte 0x53, or 'S'.
- */
-
-#define CDROMPAUSE 0x5301
-#define CDROMRESUME 0x5302
-#define CDROMPLAYMSF 0x5303 /* (struct cdrom_msf) */
-#define CDROMPLAYTRKIND 0x5304 /* (struct cdrom_ti) */
-
-#define CDROMREADTOCHDR 0x5305 /* (struct cdrom_tochdr) */
-#define CDROMREADTOCENTRY 0x5306 /* (struct cdrom_tocentry) */
-
-#define CDROMSTOP 0x5307 /* stop the drive motor */
-#define CDROMSTART 0x5308 /* turn the motor on */
-
-#define CDROMEJECT 0x5309 /* eject CD-ROM media */
-
-#define CDROMVOLCTRL 0x530a /* (struct cdrom_volctrl) */
-
-#define CDROMSUBCHNL 0x530b /* (struct cdrom_subchnl) */
-
-#define CDROMREADMODE2 0x530c /* (struct cdrom_read) */
- /* read type-2 data */
+/* 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
+{
+ u_char medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
+};
-#define CDROMREADMODE1 0x530d /* (struct cdrom_read) */
- /* read type-1 data */
+/* This is used by the CDROMPLAYBLK ioctl */
+struct cdrom_blk
+{
+ unsigned from;
+ unsigned short len;
+};
-#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
/*
- * enable (1) / disable (0) auto-ejecting
- */
-#define CDROMEJECT_SW 0x530f /* arg: 0 or 1 */
-
-/*
- * obtain the start-of-last-session address of multi session disks
- */
-#define CDROMMULTISESSION 0x5310 /* (struct cdrom_multisession) */
+ * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336,
+ * 2340, or 2352 bytes long.
-/*
- * obtain the "universal product code" number
- * (only some data disks have it coded)
+* 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 |
+ *
*/
-#define CDROM_GET_UPC 0x5311 /* 8 bytes returned */
-#define CDROMRESET 0x5312 /* hard-reset the drive */
-#define CDROMVOLREAD 0x5313 /* let the drive tell its volume setting */
- /* (struct cdrom_volctrl) */
+/* 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*/
-/*
- * these ioctls are used in aztcd.c and optcd.c
- */
-#define CDROMREADRAW 0x5314 /* read data in raw mode */
-#define CDROMREADCOOKED 0x5315 /* read data in cooked mode */
-#define CDROMSEEK 0x5316 /* seek msf address */
-
-/*
- * for playing audio in logical block addressing mode
- */
-#define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */
+#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 */
-/*
- * these ioctls are used in optcd.c
- */
-#define CDROMREADALL 0x5318 /* read all 2646 bytes */
-#define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
+/* 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
-/*
- * CD-ROM-specific SCSI command opcodes
- */
+/* The leadout track is always 0xAA, regardless of # of tracks on disc */
+#define CDROM_LEADOUT 0xAA
-/*
- * Group 2 (10-byte). All of these are called 'optional' by SCSI-II.
- */
+/* 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 */
+
+/* CD-ROM-specific SCSI command opcodes */
#define SCMD_READ_TOC 0x43 /* read table of contents */
#define SCMD_PLAYAUDIO_MSF 0x47 /* play data at time offset */
#define SCMD_PLAYAUDIO_TI 0x48 /* play data at track/index */
#define SCMD_PAUSE_RESUME 0x4B /* pause/resume audio */
#define SCMD_READ_SUBCHANNEL 0x42 /* read SC info on playing disc */
#define SCMD_PLAYAUDIO10 0x45 /* play data at logical block */
-#define SCMD_READ_HEADER 0x44 /* read TOC header */
-
-/*
- * Group 5
- */
-#define SCMD_PLAYAUDIO12 0xA5 /* play data at logical block */
-#define SCMD_PLAYTRACK_REL12 0xA9 /* play track at relative offset */
-
-/*
- * Group 6 Commands
- */
-#define SCMD_CD_PLAYBACK_CONTROL 0xC9 /* Sony vendor-specific audio */
-#define SCMD_CD_PLAYBACK_STATUS 0xC4 /* control opcodes */
-
-/*
- * CD-ROM capacity structure.
- */
-struct scsi_capacity
-{
- u_long capacity;
- u_long lbasize;
-};
-
-/*
- * CD-ROM MODE_SENSE/MODE_SELECT parameters
- */
-#define ERR_RECOVERY_PARMS 0x01
-#define DISCO_RECO_PARMS 0x02
-#define FORMAT_PARMS 0x03
-#define GEOMETRY_PARMS 0x04
-#define CERTIFICATION_PARMS 0x06
-#define CACHE_PARMS 0x38
-
-/*
- * standard mode-select header prepended to all mode-select commands
- */
-struct ccs_modesel_head
-{
- u_char _r1; /* reserved */
- u_char medium; /* device-specific medium type */
- u_char _r2; /* reserved */
- u_char block_desc_length; /* block descriptor length */
- u_char density; /* device-specific density code */
- u_char number_blocks_hi; /* number of blocks in this block desc */
- u_char number_blocks_med;
- u_char number_blocks_lo;
- u_char _r3;
- u_char block_length_hi; /* block length for blocks in this desc */
- u_char block_length_med;
- u_char block_length_lo;
-};
-
-/*
- * error recovery parameters
- */
-struct ccs_err_recovery
-{
- u_char _r1 : 2; /* reserved */
- u_char page_code : 6; /* page code */
- u_char page_length; /* page length */
- u_char awre : 1; /* auto write realloc enabled */
- u_char arre : 1; /* auto read realloc enabled */
- u_char tb : 1; /* transfer block */
- u_char rc : 1; /* read continuous */
- u_char eec : 1; /* enable early correction */
- u_char per : 1; /* post error */
- u_char dte : 1; /* disable transfer on error */
- u_char dcr : 1; /* disable correction */
- u_char retry_count; /* error retry count */
- u_char correction_span; /* largest recov. to be attempted, bits */
- u_char head_offset_count; /* head offset (2's C) for each retry */
- u_char strobe_offset_count; /* data strobe */
- u_char recovery_time_limit; /* time limit on recovery attempts */
-};
-
-/*
- * disco/reco parameters
- */
-struct ccs_disco_reco
-{
- u_char _r1 : 2; /* reserved */
- u_char page_code : 6; /* page code */
- u_char page_length; /* page length */
- u_char buffer_full_ratio; /* write buffer reconnect threshold */
- u_char buffer_empty_ratio; /* read */
- u_short bus_inactivity_limit; /* limit on bus inactivity time */
- u_short disconnect_time_limit; /* minimum disconnect time */
- u_short connect_time_limit; /* minimum connect time */
- u_short _r2; /* reserved */
-};
-
-/*
- * drive geometry parameters
- */
-struct ccs_geometry
-{
- u_char _r1 : 2; /* reserved */
- u_char page_code : 6; /* page code */
- u_char page_length; /* page length */
- u_char cyl_ub; /* #cyls */
- u_char cyl_mb;
- u_char cyl_lb;
- u_char heads; /* #heads */
- u_char precomp_cyl_ub; /* precomp start */
- u_char precomp_cyl_mb;
- u_char precomp_cyl_lb;
- u_char current_cyl_ub; /* reduced current start */
- u_char current_cyl_mb;
- u_char current_cyl_lb;
- u_short step_rate; /* stepping motor rate */
- u_char landing_cyl_ub; /* landing zone */
- u_char landing_cyl_mb;
- u_char landing_cyl_lb;
- u_char _r2;
- u_char _r3;
- u_char _r4;
-};
-/*
- * cache parameters
- */
-struct ccs_cache
-{
- u_char _r1 : 2; /* reserved */
- u_char page_code : 6; /* page code */
- u_char page_length; /* page length */
- u_char mode; /* cache control byte */
- u_char threshold; /* prefetch threshold */
- u_char max_prefetch; /* maximum prefetch size */
- u_char max_multiplier; /* maximum prefetch multiplier */
- u_char min_prefetch; /* minimum prefetch size */
- u_char min_multiplier; /* minimum prefetch multiplier */
- u_char _r2[8];
-};
+/* 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 */
+
+/* drive status possibilities used with the uniform CD-ROM driver */
+#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
+
+/* disc status possibilities, other than CDS_NO_DISC and CDS_NO_INFO */
+#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
+
+/* 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))
+
+#ifdef __KERNEL__
+/* Uniform cdrom data structures for cdrom.c */
+struct cdrom_device_info {
+ struct cdrom_device_ops *ops; /* link to device_ops */
+ struct cdrom_device_info *next; /* next device_info for this major */
+ void *handle; /* driver-dependent data */
+/* specifications */
+ kdev_t dev; /* device number */
+ int mask; /* mask of capability: disables them */
+ int speed; /* maximum speed for reading data */
+ int capacity; /* number of discs in jukebox */
+/* device-related storage */
+ int options : 30; /* options flags */
+ unsigned mc_flags : 2; /* media change buffer flags */
+ int use_count; /* number of times device opened */
+ char name[20]; /* name of the device type */
+
+};
+
+struct cdrom_device_ops {
+/* routines */
+ int (*open) (struct cdrom_device_info *, int);
+ void (*release) (struct cdrom_device_info *);
+ int (*drive_status) (struct cdrom_device_info *, int);
+ int (*media_changed) (struct cdrom_device_info *, int);
+ int (*tray_move) (struct cdrom_device_info *, int);
+ int (*lock_door) (struct cdrom_device_info *, int);
+ int (*select_speed) (struct cdrom_device_info *, int);
+ int (*select_disc) (struct cdrom_device_info *, int);
+ int (*get_last_session) (struct cdrom_device_info *,
+ struct cdrom_multisession *);
+ int (*get_mcn) (struct cdrom_device_info *,
+ struct cdrom_mcn *);
+ /* hard reset device */
+ int (*reset) (struct cdrom_device_info *);
+ /* play stuff */
+ int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
+ /* dev-specific */
+ int (*dev_ioctl) (struct cdrom_device_info *,
+ unsigned int, unsigned long);
+/* driver specifications */
+ const int capability; /* capability flags */
+ int n_minors; /* number of active minor devices */
+};
+
+/* the general file operations structure: */
+extern struct file_operations cdrom_fops;
+
+extern int register_cdrom(struct cdrom_device_info *cdi);
+extern int unregister_cdrom(struct cdrom_device_info *cdi);
+#endif /* End of kernel only stuff */
#endif _LINUX_CDROM_H
-/*==========================================================================*/
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-indent-level: 8
- * c-brace-imaginary-offset: 0
- * c-brace-offset: -8
- * c-argdecl-indent: 8
- * c-label-offset: -8
- * c-continued-statement-offset: 8
- * c-continued-brace-offset: 0
- * End:
- */
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