1 files changed, 382 insertions, 0 deletions

diff --git a/include/uapi/linux/fd.h b/include/uapi/linux/fd.h
new file mode 100644
index 000000000000..f1f3dd5981b2
--- /dev/null
+++ b/include/uapi/linux/fd.h
@@ -0,0 +1,382 @@
+#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 */
+};
+
+#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 */