amifd.h 1.9 KB

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  1. #ifndef _AMIFD_H
  2. #define _AMIFD_H
  3. /* Definitions for the Amiga floppy driver */
  4. #include <linux/fd.h>
  5. #define FD_MAX_UNITS 4 /* Max. Number of drives */
  6. #define FLOPPY_MAX_SECTORS 22 /* Max. Number of sectors per track */
  7. #ifndef ASSEMBLER
  8. struct fd_data_type {
  9. char *name; /* description of data type */
  10. int sects; /* sectors per track */
  11. #ifdef __STDC__
  12. int (*read_fkt)(int);
  13. void (*write_fkt)(int);
  14. #else
  15. int (*read_fkt)(); /* read whole track */
  16. void (*write_fkt)(); /* write whole track */
  17. #endif
  18. };
  19. /*
  20. ** Floppy type descriptions
  21. */
  22. struct fd_drive_type {
  23. unsigned long code; /* code returned from drive */
  24. char *name; /* description of drive */
  25. unsigned int tracks; /* number of tracks */
  26. unsigned int heads; /* number of heads */
  27. unsigned int read_size; /* raw read size for one track */
  28. unsigned int write_size; /* raw write size for one track */
  29. unsigned int sect_mult; /* sectors and gap multiplier (HD = 2) */
  30. unsigned int precomp1; /* start track for precomp 1 */
  31. unsigned int precomp2; /* start track for precomp 2 */
  32. unsigned int step_delay; /* time (in ms) for delay after step */
  33. unsigned int settle_time; /* time to settle after dir change */
  34. unsigned int side_time; /* time needed to change sides */
  35. };
  36. struct amiga_floppy_struct {
  37. struct fd_drive_type *type; /* type of floppy for this unit */
  38. struct fd_data_type *dtype; /* type of floppy for this unit */
  39. int track; /* current track (-1 == unknown) */
  40. unsigned char *trackbuf; /* current track (kmaloc()'d */
  41. int blocks; /* total # blocks on disk */
  42. int changed; /* true when not known */
  43. int disk; /* disk in drive (-1 == unknown) */
  44. int motor; /* true when motor is at speed */
  45. int busy; /* true when drive is active */
  46. int dirty; /* true when trackbuf is not on disk */
  47. int status; /* current error code for unit */
  48. struct gendisk *gendisk;
  49. };
  50. #endif
  51. #endif