include/minix/drvlib.h

   1 /* IBM device driver definitions                        Author: Kees J. Bot
   2  *                                                              7 Dec 1995
   3  */
   4
   5 #include <machine/partition.h>
   6
   7 _PROTOTYPE( void partition, (struct driver *dr, int device, int style, int atapi) );
   8
   9 /* BIOS parameter table layout. */
  10 #define bp_cylinders(t)         (* (u16_t *) (&(t)[0]))
  11 #define bp_heads(t)             (* (u8_t *)  (&(t)[2]))
  12 #define bp_reduced_wr(t)        (* (u16_t *) (&(t)[3]))
  13 #define bp_precomp(t)           (* (u16_t *) (&(t)[5]))
  14 #define bp_max_ecc(t)           (* (u8_t *)  (&(t)[7]))
  15 #define bp_ctlbyte(t)           (* (u8_t *)  (&(t)[8]))
  16 #define bp_landingzone(t)       (* (u16_t *) (&(t)[12]))
  17 #define bp_sectors(t)           (* (u8_t *)  (&(t)[14]))
  18
  19 /* Miscellaneous. */
  20 #define DEV_PER_DRIVE   (1 + NR_PARTITIONS)
  21 #define MINOR_t0        64
  22 #define MINOR_r0        120
  23 #define MINOR_d0p0s0    128
  24 #define MINOR_fd0p0     (28<<2)
  25 #define P_FLOPPY        0
  26 #define P_PRIMARY       1
  27 #define P_SUB           2