include/linux/amifd.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _AMIFD_H
   3 #define _AMIFD_H
   4
   5 /* Definitions for the Amiga floppy driver */
   6
   7 #include <linux/fd.h>
   8
   9 #define FD_MAX_UNITS    4       /* Max. Number of drives */
  10 #define FLOPPY_MAX_SECTORS      22      /* Max. Number of sectors per track */
  11
  12 #ifndef ASSEMBLER
  13
  14 struct fd_data_type {
  15     char *name;                 /* description of data type */
  16     int sects;                  /* sectors per track */
  17 #ifdef __STDC__
  18     int (*read_fkt)(int);
  19     void (*write_fkt)(int);
  20 #else
  21     int (*read_fkt)();          /* read whole track */
  22     void (*write_fkt)();                /* write whole track */
  23 #endif
  24 };
  25
  26 /*
  27 ** Floppy type descriptions
  28 */
  29
  30 struct fd_drive_type {
  31     unsigned long code;         /* code returned from drive */
  32     char *name;                 /* description of drive */
  33     unsigned int tracks;        /* number of tracks */
  34     unsigned int heads;         /* number of heads */
  35     unsigned int read_size;     /* raw read size for one track */
  36     unsigned int write_size;    /* raw write size for one track */
  37     unsigned int sect_mult;     /* sectors and gap multiplier (HD = 2) */
  38     unsigned int precomp1;      /* start track for precomp 1 */
  39     unsigned int precomp2;      /* start track for precomp 2 */
  40     unsigned int step_delay;    /* time (in ms) for delay after step */
  41     unsigned int settle_time;   /* time to settle after dir change */
  42     unsigned int side_time;     /* time needed to change sides */
  43 };
  44
  45 struct amiga_floppy_struct {
  46     struct fd_drive_type *type; /* type of floppy for this unit */
  47     struct fd_data_type *dtype; /* type of floppy for this unit */
  48     int track;                  /* current track (-1 == unknown) */
  49     unsigned char *trackbuf;    /* current track (kmaloc()'d */
  50
  51     int blocks;                 /* total # blocks on disk */
  52
  53     int changed;                /* true when not known */
  54     int disk;                   /* disk in drive (-1 == unknown) */
  55     int motor;                  /* true when motor is at speed */
  56     int busy;                   /* true when drive is active */
  57     int dirty;                  /* true when trackbuf is not on disk */
  58     int status;                 /* current error code for unit */
  59     struct gendisk *gendisk;
  60 };
  61 #endif
  62
  63 #endif