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