| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | #ifndef _AMIFD_H |
| 3 | #define _AMIFD_H |
| 4 | |
| 5 | /* Definitions for the Amiga floppy driver */ |
| 6 | |
| 7 | #include <linux/fd.h> |
| 8 | |
| 9 | #define FD_MAX_UNITS 4 /* Max. Number of drives */ |
| 10 | #define FLOPPY_MAX_SECTORS 22 /* Max. Number of sectors per track */ |
| 11 | |
| 12 | #ifndef ASSEMBLER |
| 13 | |
| 14 | struct fd_data_type { |
| 15 | char *name; /* description of data type */ |
| 16 | int sects; /* sectors per track */ |
| 17 | #ifdef __STDC__ |
| 18 | int (*read_fkt)(int); |
| 19 | void (*write_fkt)(int); |
| 20 | #else |
| 21 | int (*read_fkt)(); /* read whole track */ |
| 22 | void (*write_fkt)(); /* write whole track */ |
| 23 | #endif |
| 24 | }; |
| 25 | |
| 26 | /* |
| 27 | ** Floppy type descriptions |
| 28 | */ |
| 29 | |
| 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 */ |
| 43 | }; |
| 44 | |
| 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 */ |
| 50 | |
| 51 | int blocks; /* total # blocks on disk */ |
| 52 | |
| 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; |
| 60 | }; |
| 61 | #endif |
| 62 | |
| 63 | #endif |