linux/include/linux/amifd.h
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   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
  13struct 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
  29struct 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
  44struct 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
  63
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