1 /* SPDX-License-Identifier: GPL-2.0 */
5 /* Definitions for the Amiga floppy driver */
9 #define FD_MAX_UNITS 4 /* Max. Number of drives */
10 #define FLOPPY_MAX_SECTORS 22 /* Max. Number of sectors per track */
15 char *name; /* description of data type */
16 int sects; /* sectors per track */
19 void (*write_fkt)(int);
21 int (*read_fkt)(); /* read whole track */
22 void (*write_fkt)(); /* write whole track */
27 ** Floppy type descriptions
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 */
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 */
51 int blocks; /* total # blocks on disk */
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;