#ifndef _UAPI_LINUX_FD_H#define _UAPI_LINUX_FD_H #include <linux/ioctl.h>#include <linux/compiler.h> /* New file layout: Now the ioctl definitions immediately follow the * definitions of the structures that they use */ /* * Geometry */struct floppy_struct {	unsigned int	size,		/* nr of sectors total */			sect,		/* sectors per track */			head,		/* nr of heads */			track,		/* nr of tracks */			stretch;	/* bit 0 !=0 means double track steps */					/* bit 1 != 0 means swap sides */					/* bits 2..9 give the first sector */					/*  number (the LSB is flipped) */#define FD_STRETCH 1#define FD_SWAPSIDES 2#define FD_ZEROBASED 4#define FD_SECTBASEMASK 0x3FC#define FD_MKSECTBASE(s) (((s) ^ 1) << 2)#define FD_SECTBASE(floppy) ((((floppy)->stretch & FD_SECTBASEMASK) >> 2) ^ 1) 	unsigned char	gap,		/* gap1 size */ 			rate,		/* data rate. |= 0x40 for perpendicular */#define FD_2M 0x4#define FD_SIZECODEMASK 0x38#define FD_SIZECODE(floppy) (((((floppy)->rate&FD_SIZECODEMASK)>> 3)+ 2) %8)#define FD_SECTSIZE(floppy) ( (floppy)->rate & FD_2M ? \			     512 : 128 << FD_SIZECODE(floppy) )#define FD_PERP 0x40 			spec1,		/* stepping rate, head unload time */			fmt_gap;	/* gap2 size */	const char	* name; /* used only for predefined formats */};  /* commands needing write access have 0x40 set *//* commands needing super user access have 0x80 set */ #define FDCLRPRM _IO(2, 0x41)/* clear user-defined parameters */ #define FDSETPRM _IOW(2, 0x42, struct floppy_struct) #define FDSETMEDIAPRM FDSETPRM/* set user-defined parameters for current media */ #define FDDEFPRM _IOW(2, 0x43, struct floppy_struct) #define FDGETPRM _IOR(2, 0x04, struct floppy_struct)#define FDDEFMEDIAPRM FDDEFPRM#define FDGETMEDIAPRM FDGETPRM/* set/get disk parameters */  #define	FDMSGON  _IO(2,0x45)#define	FDMSGOFF _IO(2,0x46)/* issue/don't issue kernel messages on media type change */  /*  * Formatting (obsolete) */#define FD_FILL_BYTE 0xF6 /* format fill byte. */ struct format_descr {	unsigned int device,head,track;}; #define FDFMTBEG _IO(2,0x47)/* begin formatting a disk */#define	FDFMTTRK _IOW(2,0x48, struct format_descr)/* format the specified track */#define FDFMTEND _IO(2,0x49)/* end formatting a disk */  /* * Error thresholds */struct floppy_max_errors {	unsigned int	  abort,      /* number of errors to be reached before aborting */	  read_track, /* maximal number of errors permitted to read an		       * entire track at once */	  reset,      /* maximal number of errors before a reset is tried */	  recal,      /* maximal number of errors before a recalibrate is		       * tried */ 	  /*	   * Threshold for reporting FDC errors to the console.	   * Setting this to zero may flood your screen when using	   * ultra cheap floppies ;-)	   */	  reporting; }; #define FDSETEMSGTRESH	_IO(2,0x4a)/* set fdc error reporting threshold */ #define FDFLUSH  _IO(2,0x4b)/* flush buffers for media; either for verifying media, or for * handling a media change without closing the file descriptor */ #define FDSETMAXERRS _IOW(2, 0x4c, struct floppy_max_errors)#define FDGETMAXERRS _IOR(2, 0x0e, struct floppy_max_errors)/* set/get abortion and read_track threshold. See also floppy_drive_params * structure */  typedef char floppy_drive_name[16];#define FDGETDRVTYP _IOR(2, 0x0f, floppy_drive_name)/* get drive type: 5 1/4 or 3 1/2 */  /* * Drive parameters (user modifiable) */struct floppy_drive_params {	signed char cmos;		/* CMOS type */		/* Spec2 is (HLD<<1 | ND), where HLD is head load time (1=2ms, 2=4 ms 	 * etc) and ND is set means no DMA. Hardcoded to 6 (HLD=6ms, use DMA).	 */	unsigned long max_dtr;		/* Step rate, usec */	unsigned long hlt;     		/* Head load/settle time, msec */	unsigned long hut;     		/* Head unload time (remnant of 					 * 8" drives) */	unsigned long srt;     		/* Step rate, usec */ 	unsigned long spinup;		/* time needed for spinup (expressed					 * in jiffies) */	unsigned long spindown;		/* timeout needed for spindown */	unsigned char spindown_offset;	/* decides in which position the disk					 * will stop */	unsigned char select_delay;	/* delay to wait after select */	unsigned char rps;		/* rotations per second */	unsigned char tracks;		/* maximum number of tracks */	unsigned long timeout;		/* timeout for interrupt requests */		unsigned char interleave_sect;	/* if there are more sectors, use 					 * interleave */		struct floppy_max_errors max_errors;		char flags;			/* various flags, including ftd_msg *//* * Announce successful media type detection and media information loss after * disk changes. * Also used to enable/disable printing of overrun warnings. */ #define FTD_MSG 0x10#define FD_BROKEN_DCL 0x20#define FD_DEBUG 0x02#define FD_SILENT_DCL_CLEAR 0x4#define FD_INVERTED_DCL 0x80 /* must be 0x80, because of hardware 				considerations */ 	char read_track;		/* use readtrack during probing? */ /* * Auto-detection. Each drive type has eight formats which are * used in succession to try to read the disk. If the FDC cannot lock onto * the disk, the next format is tried. This uses the variable 'probing'. */	short autodetect[8];		/* autodetected formats */		int checkfreq; /* how often should the drive be checked for disk 			* changes */	int native_format; /* native format of this drive */}; enum {	FD_NEED_TWADDLE_BIT,	/* more magic */	FD_VERIFY_BIT,		/* inquire for write protection */	FD_DISK_NEWCHANGE_BIT,	/* change detected, and no action undertaken yet				 * to clear media change status */	FD_UNUSED_BIT,	FD_DISK_CHANGED_BIT,	/* disk has been changed since last i/o */	FD_DISK_WRITABLE_BIT,	/* disk is writable */	FD_OPEN_SHOULD_FAIL_BIT}; #define FDSETDRVPRM _IOW(2, 0x90, struct floppy_drive_params)#define FDGETDRVPRM _IOR(2, 0x11, struct floppy_drive_params)/* set/get drive parameters */  /* * Current drive state (not directly modifiable by user, readonly) */struct floppy_drive_struct {	unsigned long flags;/* values for these flags */#define FD_NEED_TWADDLE (1 << FD_NEED_TWADDLE_BIT)#define FD_VERIFY (1 << FD_VERIFY_BIT)#define FD_DISK_NEWCHANGE (1 << FD_DISK_NEWCHANGE_BIT)#define FD_DISK_CHANGED (1 << FD_DISK_CHANGED_BIT)#define FD_DISK_WRITABLE (1 << FD_DISK_WRITABLE_BIT) 	unsigned long spinup_date;	unsigned long select_date;	unsigned long first_read_date;	short probed_format;	short track; /* current track */	short maxblock; /* id of highest block read */	short maxtrack; /* id of highest half track read */	int generation; /* how many diskchanges? */ /* * (User-provided) media information is _not_ discarded after a media change * if the corresponding keep_data flag is non-zero. Positive values are * decremented after each probe. */	int keep_data;		/* Prevent "aliased" accesses. */	int fd_ref;	int fd_device;	unsigned long last_checked; /* when was the drive last checked for a disk 			   * change? */		char *dmabuf;	int bufblocks;}; #define FDGETDRVSTAT _IOR(2, 0x12, struct floppy_drive_struct)#define FDPOLLDRVSTAT _IOR(2, 0x13, struct floppy_drive_struct)/* get drive state: GET returns the cached state, POLL polls for new state */  /* * reset FDC */enum reset_mode {	FD_RESET_IF_NEEDED,	/* reset only if the reset flags is set */	FD_RESET_IF_RAWCMD,	/* obsolete */	FD_RESET_ALWAYS		/* reset always */};#define FDRESET _IO(2, 0x54)  /* * FDC state */struct floppy_fdc_state {		int spec1;		/* spec1 value last used */	int spec2;		/* spec2 value last used */	int dtr;	unsigned char version;	/* FDC version code */	unsigned char dor;	unsigned long address;	/* io address */	unsigned int rawcmd:2;	unsigned int reset:1;	unsigned int need_configure:1;	unsigned int perp_mode:2;	unsigned int has_fifo:1;	unsigned int driver_version;	/* version code for floppy driver */#define FD_DRIVER_VERSION 0x100/* user programs using the floppy API should use floppy_fdc_state to * get the version number of the floppy driver that they are running * on. If this version number is bigger than the one compiled into the * user program (the FD_DRIVER_VERSION define), it should be prepared * to bigger structures */ 	unsigned char track[4];	/* Position of the heads of the 4 units attached to this FDC,	 * as stored on the FDC. In the future, the position as stored	 * on the FDC might not agree with the actual physical	 * position of these drive heads. By allowing such	 * disagreement, it will be possible to reset the FDC without	 * incurring the expensive cost of repositioning all heads.	 * Right now, these positions are hard wired to 0. */ }; #define FDGETFDCSTAT _IOR(2, 0x15, struct floppy_fdc_state)  /* * Asynchronous Write error tracking */struct floppy_write_errors {	/* Write error logging.	 *	 * These fields can be cleared with the FDWERRORCLR ioctl.	 * Only writes that were attempted but failed due to a physical media	 * error are logged.  write(2) calls that fail and return an error code	 * to the user process are not counted.	 */ 	unsigned int write_errors;  /* number of physical write errors 				     * encountered */		/* position of first and last write errors */	unsigned long first_error_sector;	int           first_error_generation;	unsigned long last_error_sector;	int           last_error_generation;		unsigned int badness; /* highest retry count for a read or write 			       * operation */}; #define FDWERRORCLR  _IO(2, 0x56)/* clear write error and badness information */#define FDWERRORGET  _IOR(2, 0x17, struct floppy_write_errors)/* get write error and badness information */  /* * Raw commands *//* new interface flag: now we can do them in batches */#define FDHAVEBATCHEDRAWCMD struct floppy_raw_cmd {	unsigned int flags;#define FD_RAW_READ 1#define FD_RAW_WRITE 2#define FD_RAW_NO_MOTOR 4#define FD_RAW_DISK_CHANGE 4 /* out: disk change flag was set */#define FD_RAW_INTR 8    /* wait for an interrupt */#define FD_RAW_SPIN 0x10 /* spin up the disk for this command */#define FD_RAW_NO_MOTOR_AFTER 0x20 /* switch the motor off after command 				    * completion */#define FD_RAW_NEED_DISK 0x40  /* this command needs a disk to be present */#define FD_RAW_NEED_SEEK 0x80  /* this command uses an implied seek (soft) */ /* more "in" flags */#define FD_RAW_MORE 0x100  /* more records follow */#define FD_RAW_STOP_IF_FAILURE 0x200 /* stop if we encounter a failure */#define FD_RAW_STOP_IF_SUCCESS 0x400 /* stop if command successful */#define FD_RAW_SOFTFAILURE 0x800 /* consider the return value for failure				  * detection too */ /* more "out" flags */#define FD_RAW_FAILURE 0x10000 /* command sent to fdc, fdc returned error */#define FD_RAW_HARDFAILURE 0x20000 /* fdc had to be reset, or timed out */ 	void __user *data;	char *kernel_data; /* location of data buffer in the kernel */	struct floppy_raw_cmd *next; /* used for chaining of raw cmd's 				      * within the kernel */	long length; /* in: length of dma transfer. out: remaining bytes */	long phys_length; /* physical length, if different from dma length */	int buffer_length; /* length of allocated buffer */ 	unsigned char rate;	unsigned char cmd_count;	unsigned char cmd[16];	unsigned char reply_count;	unsigned char reply[16];	int track;	int resultcode; 	int reserved1;	int reserved2;}; #define FDRAWCMD _IO(2, 0x58)/* send a raw command to the fdc. Structure size not included, because of * batches */ #define FDTWADDLE _IO(2, 0x59)/* flicker motor-on bit before reading a sector. Experimental */  #define FDEJECT _IO(2, 0x5a)/* eject the disk */   #endif /* _UAPI_LINUX_FD_H */