1 /* SPDX-License-Identifier: GPL-2.0 */ 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 64