include/linux/amifd.h

   1 #ifndef _AMIFD_H
   2 #define _AMIFD_H
   3
   4 /* Definitions for the Amiga floppy driver */
   5
   6 #include <linux/fd.h>
   7
   8 #define FD_MAX_UNITS    4       /* Max. Number of drives */
   9 #define FLOPPY_MAX_SECTORS      22      /* Max. Number of sectors per track */
  10
  11 #ifndef ASSEMBLER
  12
  13 struct fd_data_type {
  14     char *name;                 /* description of data type */
  15     int sects;                  /* sectors per track */
  16 #ifdef __STDC__
  17     int (*read_fkt)(int);
  18     void (*write_fkt)(int);
  19 #else
  20     int (*read_fkt)();          /* read whole track */
  21     void (*write_fkt)();                /* write whole track */
  22 #endif
  23 };
  24
  25 /*
  26 ** Floppy type descriptions
  27 */
  28
  29 struct fd_drive_type {
  30     unsigned long code;         /* code returned from drive */
  31     char *name;                 /* description of drive */
  32     unsigned int tracks;        /* number of tracks */
  33     unsigned int heads;         /* number of heads */
  34     unsigned int read_size;     /* raw read size for one track */
  35     unsigned int write_size;    /* raw write size for one track */
  36     unsigned int sect_mult;     /* sectors and gap multiplier (HD = 2) */
  37     unsigned int precomp1;      /* start track for precomp 1 */
  38     unsigned int precomp2;      /* start track for precomp 2 */
  39     unsigned int step_delay;    /* time (in ms) for delay after step */
  40     unsigned int settle_time;   /* time to settle after dir change */
  41     unsigned int side_time;     /* time needed to change sides */
  42 };
  43
  44 struct amiga_floppy_struct {
  45     struct fd_drive_type *type; /* type of floppy for this unit */
  46     struct fd_data_type *dtype; /* type of floppy for this unit */
  47     int track;                  /* current track (-1 == unknown) */
  48     unsigned char *trackbuf;    /* current track (kmaloc()'d */
  49
  50     int blocks;                 /* total # blocks on disk */
  51
  52     int changed;                /* true when not known */
  53     int disk;                   /* disk in drive (-1 == unknown) */
  54     int motor;                  /* true when motor is at speed */
  55     int busy;                   /* true when drive is active */
  56     int dirty;                  /* true when trackbuf is not on disk */
  57     int status;                 /* current error code for unit */
  58     struct gendisk *gendisk;
  59 };
  60 #endif
  61
  62 #endif