Import of Linux/MIPS 2.1.14

1 files changed, 337 insertions, 309 deletions

diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 1cd8cbeda..aba1458c3 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -1,12 +1,10 @@
-/****************************************************************************************
- *											*
- * general (not only SCSI) header library for linux CDROM drivers                       *
- * (C) 1992 David Giller rafetmad@oxy.edu						*
- *     1994 Eberhard Moenkeberg emoenke@gwdg.de ("read audio" and some other stuff)	*
- *											*
- * <linux/cdrom.h> -- CD-ROM IOCTLs and structs		 				*
- *											*
- ****************************************************************************************/
+/*
+ * -- <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
+ *
+ */
 
 #ifndef	_LINUX_CDROM_H
 #define	_LINUX_CDROM_H
@@ -14,229 +12,114 @@
 /*
  * some fix numbers
  */
-#define CD_MINS                   74  /* max. minutes per CD             */
-#define CD_SECS                   60  /* seconds per minute              */
-#define CD_FRAMES                 75  /* frames per second               */
-#define CD_CHUNK_SIZE             24  /* lowest-level "data bytes piece" */
-#define CD_NUM_OF_CHUNKS          98  /* chunks per frame                */
-#define CD_FRAMESIZE            2048  /* bytes per frame, cooked mode    */
-#define CD_FRAMESIZE_RAW0       2336  /* bytes per frame, "raw" mode     */
-#define CD_FRAMESIZE_XA         2340  /* bytes per frame, "xa" mode      */
-#define CD_FRAMESIZE_RAW        2352  /* bytes per frame, "raw" mode     */
-#define CD_FRAMESIZE_SUB          96  /* subchannel data size            */
-#define CD_BLOCK_OFFSET          150  /* offset of first logical frame   */
-#define CD_XA_HEAD                12  /* header size of XA frame         */
-#define CD_XA_TAIL               280  /* tail size of XA frame           */
+#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 CD_FRAMESIZE_SUB    96 /* subchannel data "frame" size */
+#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_XA CD_FRAMESIZE_RAW1 /* obsolete name */
+#define CD_BLOCK_OFFSET    CD_MSF_OFFSET /* obsolete name */
 
 /*
+ * the raw frame layout:
  *
- * For IOCTL calls, we will commandeer byte 0x53, or 'S'.
+ * - 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  |
  */
 
 /*
- * CD-ROM-specific SCSI command opcodes
- */
-
-/*
- * Group 2 (10-byte).  All of these are called 'optional' by SCSI-II.
- */
-
-#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. info please!*/
-
-/*
- * 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_short	block_length;
-	};
-
-/*
- * 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
+ * CDROM IOCTL structures
  */
 
-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				*/
+struct cdrom_blk 
+{
+	unsigned from;
+	unsigned short len;
 };
 
-/*
- * 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];
-	};
-
-/*
- * CDROM IOCTL structures
- */
 
 struct cdrom_msf 
-	{
-	u_char	cdmsf_min0;		/* start minute 			*/
-	u_char	cdmsf_sec0;		/* start second 			*/
-	u_char	cdmsf_frame0;		/* start frame  			*/
-	u_char	cdmsf_min1;		/* end minute   			*/
-	u_char	cdmsf_sec1;		/* end second   			*/
-	u_char	cdmsf_frame1;		/* end frame	   			*/
-	};
+{
+	u_char	cdmsf_min0;	/* start minute */
+	u_char	cdmsf_sec0;	/* start second */
+	u_char	cdmsf_frame0;	/* start frame */
+	u_char	cdmsf_min1;	/* end minute */
+	u_char	cdmsf_sec1;	/* end second */
+	u_char	cdmsf_frame1;	/* end frame */
+};
 
 struct cdrom_ti 
-	{
-	u_char	cdti_trk0;		/* start track 				*/
-	u_char	cdti_ind0;		/* start index 				*/
-	u_char	cdti_trk1;		/* end track 				*/
-	u_char	cdti_ind1;		/* end index 				*/
-	};
+{
+	u_char	cdti_trk0;	/* start track */
+	u_char	cdti_ind0;	/* start index */
+	u_char	cdti_trk1;	/* end track */
+	u_char	cdti_ind1;	/* end index */
+};
 
 struct cdrom_tochdr 	
-	{
-	u_char	cdth_trk0;		/* start track 				*/
-	u_char	cdth_trk1;		/* end track 				*/
-	};
+{
+	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 
-	{
+{
 	u_char	cdte_track;
 	u_char	cdte_adr	:4;
 	u_char	cdte_ctrl	:4;
 	u_char	cdte_format;
-	union
-		{
-		struct
-			{
-			u_char	minute;
-			u_char	second;
-			u_char	frame;
-			} msf;
-		int	lba;
-		} cdte_addr;
+	union cdrom_addr cdte_addr;
 	u_char	cdte_datamode;
-	};
+};
 
 /*
  * CD-ROM address types (cdrom_tocentry.cdte_format)
@@ -245,94 +128,67 @@ struct cdrom_tocentry
 #define	CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
 
 /*
- * bit to tell whether track is data or audio
+ * 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
 
 struct cdrom_subchnl 
-	{
+{
 	u_char	cdsc_format;
 	u_char	cdsc_audiostatus;
 	u_char	cdsc_adr:	4;
 	u_char	cdsc_ctrl:	4;
 	u_char	cdsc_trk;
 	u_char	cdsc_ind;
-	union
-		{
-		struct 			
-			{
-			u_char	minute;
-			u_char	second;
-			u_char	frame;
-			} msf;
-		int	lba;
-		} cdsc_absaddr;
-	union 
-		{
-		struct 
-			{
-			u_char	minute;
-			u_char	second;
-			u_char	frame;
-			} msf;
-		int	lba;
-		} cdsc_reladdr;
-	};
+	union cdrom_addr cdsc_absaddr;
+	union cdrom_addr cdsc_reladdr;
+};
+
+struct cdrom_mcn {
+  u_char medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
+};
 
 /*
- * return value from READ SUBCHANNEL DATA
+ * 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 	*/
+#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
-	{
+{
 	u_char	channel0;
 	u_char	channel1;
 	u_char	channel2;
 	u_char	channel3;
-	};
+};
 
 struct cdrom_read      
-	{
+{
 	int	cdread_lba;
 	caddr_t	cdread_bufaddr;
 	int	cdread_buflen;
-	};
+};
 
 /*
- * preliminary extensions for transferring audio frames
- * currently used by sbpcd.c
- * (still may change if other drivers will use it, too):
+ * extensions for transferring audio frames
+ * currently used by sbpcd.c, cdu31a.c, ide-cd.c
  */
 struct cdrom_read_audio
-	{
-	  union
-	    {
-	      struct 			
-		{
-		  u_char minute;
-		  u_char second;
-		  u_char frame;
-		} msf;
-	      int	lba;
-	    } 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) */
-	};
+{
+	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) */
+};
 
 /*
  * this has to be the "arg" of the CDROMMULTISESSION ioctl
@@ -340,20 +196,11 @@ struct cdrom_read_audio
  * The returned "addr" is valid only if "xa_flag" is true.
  */
 struct cdrom_multisession
-	{
-	  union
-	    {
-	      struct 			
-		{
-		  u_char minute;
-		  u_char second;
-		  u_char frame;
-		} msf;
-	      int lba;
-	    } 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"!)*/
+	u_char xa_flag; /* 1: "is XA disk" */
+	u_char addr_format; /* CDROM_LBA or CDROM_MSF */
+};
 
 #ifdef FIVETWELVE
 #define	CDROM_MODE1_SIZE	512
@@ -364,54 +211,235 @@ struct cdrom_multisession
 
 /*
  * CD-ROM IOCTL commands
+ * For IOCTL calls, we will commandeer byte 0x53, or 'S'.
  */
 
-#define	CDROMPAUSE		0x5301		/* pause			*/
-#define	CDROMRESUME		0x5302		/* resume			*/
+#define CDROMPAUSE		0x5301
+#define CDROMRESUME		0x5302
+#define CDROMPLAYMSF		0x5303	/* (struct cdrom_msf) */
+#define CDROMPLAYTRKIND		0x5304	/* (struct cdrom_ti) */
 
-#define	CDROMPLAYMSF		0x5303		/* (struct cdrom_msf)		*/
-                                                /* SCMD_PLAY_AUDIO_MSF		*/
+#define CDROMREADTOCHDR		0x5305	/* (struct cdrom_tochdr) */
+#define CDROMREADTOCENTRY	0x5306	/* (struct cdrom_tocentry) */
 
-#define	CDROMPLAYTRKIND		0x5304		/* (struct cdrom_ti)		*/
-                                                /* SCMD_PLAY_AUDIO_TI		*/
+#define CDROMSTOP		0x5307	/* stop the drive motor	*/
+#define CDROMSTART		0x5308	/* turn the motor on */
 
-#define	CDROMREADTOCHDR		0x5305		/* (struct cdrom_tochdr)	*/
-                                                /* read the TOC header		*/
-#define	CDROMREADTOCENTRY	0x5306		/* (struct cdrom_tocentry)	*/
-                                                /* read a TOC entry		*/
+#define CDROMEJECT		0x5309	/* eject CD-ROM media */
 
-#define	CDROMSTOP		0x5307		/* stop the drive motor		*/
-#define	CDROMSTART		0x5308		/* turn the motor on 		*/
+#define CDROMVOLCTRL		0x530a	/* (struct cdrom_volctrl) */
 
-#define	CDROMEJECT		0x5309		/* eject CD-ROM media		*/
+#define CDROMSUBCHNL		0x530b	/* (struct cdrom_subchnl) */
 
-#define	CDROMVOLCTRL		0x530a		/* (struct cdrom_volctrl)	*/
-                                                /* volume control		*/
+#define CDROMREADMODE2		0x530c	/* (struct cdrom_read) */
+                                          /* read type-2 data */
 
-#define	CDROMSUBCHNL		0x530b		/* (struct cdrom_subchnl)	*/
-                                                /* read Q sub-channel data 	*/
+#define CDROMREADMODE1		0x530d	/* (struct cdrom_read) */
+                                          /* read type-1 data */
 
-#define	CDROMREADMODE2		0x530c		/* (struct cdrom_read)		*/
-                                                /* read type-2 data (not suppt)	*/
+#define CDROMREADAUDIO		0x530e	/* (struct cdrom_read_audio) */
 
-#define	CDROMREADMODE1		0x530d		/* (struct cdrom_read)		*/
-                                                /* read type-1 data 		*/
-/*
- * preliminary extension for transferring audio frames
- * currently used by cdu31a.c and sbpcd.c
- * (still may change if other drivers will use it, too):
- */
-#define	CDROMREADAUDIO		0x530e		/* (struct cdrom_read_audio)	*/
 /*
- * preliminary extension for enable (1) / disable (0) auto-ejecting
- * currently used by sbpcd.c
- * (still may change if other drivers will use it, too):
+ * enable (1) / disable (0) auto-ejecting
  */
-#define	CDROMEJECT_SW		0x530f		/* arg: 0 or 1 */
+#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) */
+#define CDROMMULTISESSION	0x5310	/* (struct cdrom_multisession) */
+
+/*
+ * obtain the "universal product code" number
+ * (only some data disks have it coded)
+ */
+#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) */
+
+/* 
+ * 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) */
+
+/* 
+ * these ioctls are used in optcd.c
+ */
+#define CDROMREADALL		0x5318	/* read all 2646 bytes */
+#define CDROMCLOSETRAY		0x5319	/* pendant of CDROMEJECT */
+
+
+/*
+ * CD-ROM-specific SCSI command opcodes
+ */
+
+/*
+ * Group 2 (10-byte).  All of these are called 'optional' by SCSI-II.
+ */
+#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_short	block_length;
+};
+
+/*
+ * 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];
+};
 
 #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:
+ */