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 };
59 #endif
60
61 #endif
62
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