projects/linux·blob v3.13 · refs

62 lines · 1.9 KiB

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