64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _AMIFD_H
|
|
#define _AMIFD_H
|
|
|
|
/* Definitions for the Amiga floppy driver */
|
|
|
|
#include <linux/fd.h>
|
|
|
|
#define FD_MAX_UNITS 4 /* Max. Number of drives */
|
|
#define FLOPPY_MAX_SECTORS 22 /* Max. Number of sectors per track */
|
|
|
|
#ifndef ASSEMBLER
|
|
|
|
struct fd_data_type {
|
|
char *name; /* description of data type */
|
|
int sects; /* sectors per track */
|
|
#ifdef __STDC__
|
|
int (*read_fkt)(int);
|
|
void (*write_fkt)(int);
|
|
#else
|
|
int (*read_fkt)(); /* read whole track */
|
|
void (*write_fkt)(); /* write whole track */
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
** Floppy type descriptions
|
|
*/
|
|
|
|
struct fd_drive_type {
|
|
unsigned long code; /* code returned from drive */
|
|
char *name; /* description of drive */
|
|
unsigned int tracks; /* number of tracks */
|
|
unsigned int heads; /* number of heads */
|
|
unsigned int read_size; /* raw read size for one track */
|
|
unsigned int write_size; /* raw write size for one track */
|
|
unsigned int sect_mult; /* sectors and gap multiplier (HD = 2) */
|
|
unsigned int precomp1; /* start track for precomp 1 */
|
|
unsigned int precomp2; /* start track for precomp 2 */
|
|
unsigned int step_delay; /* time (in ms) for delay after step */
|
|
unsigned int settle_time; /* time to settle after dir change */
|
|
unsigned int side_time; /* time needed to change sides */
|
|
};
|
|
|
|
struct amiga_floppy_struct {
|
|
struct fd_drive_type *type; /* type of floppy for this unit */
|
|
struct fd_data_type *dtype; /* type of floppy for this unit */
|
|
int track; /* current track (-1 == unknown) */
|
|
unsigned char *trackbuf; /* current track (kmaloc()'d */
|
|
|
|
int blocks; /* total # blocks on disk */
|
|
|
|
int changed; /* true when not known */
|
|
int disk; /* disk in drive (-1 == unknown) */
|
|
int motor; /* true when motor is at speed */
|
|
int busy; /* true when drive is active */
|
|
int dirty; /* true when trackbuf is not on disk */
|
|
int status; /* current error code for unit */
|
|
struct gendisk *gendisk;
|
|
};
|
|
#endif
|
|
|
|
#endif
|