include/minix/dmap.h

   1 #ifndef _DMAP_H
   2 #define _DMAP_H
   3
   4 #include <minix/sys_config.h>
   5 #include <minix/ipc.h>
   6
   7 enum dev_style { STYLE_DEV, STYLE_NDEV, STYLE_TTY, STYLE_CLONE };
   8
   9 /*===========================================================================*
  10  *                       Major and minor device numbers                      *
  11  *===========================================================================*/
  12
  13 /* Total number of different devices. */
  14 #define NR_DEVICES                32            /* number of (major) devices */
  15
  16 #define NONE_MAJOR                 0    /* pseudo device for mounting file
  17                                          * systems without a real block device
  18                                          */
  19
  20 /* Major and minor device numbers for MEMORY driver. */
  21 #define MEMORY_MAJOR               1    /* major device for memory devices */
  22 #  define RAM_DEV_OLD              0    /* minor device for /dev/ram */
  23 #  define MEM_DEV                  1    /* minor device for /dev/mem */
  24 #  define KMEM_DEV                 2    /* minor device for /dev/kmem */
  25 #  define NULL_DEV                 3    /* minor device for /dev/null */
  26 #  define BOOT_DEV                 4    /* minor device for /dev/boot */
  27 #  define ZERO_DEV                 5    /* minor device for /dev/zero */
  28 #  define IMGRD_DEV                6    /* minor device for /dev/imgrd */
  29 #  define RAM_DEV_FIRST            7    /* first minor device for /dev/ram* */
  30
  31 #define CTRLR(n) ((n)==0 ? 3 : (8 + 2*((n)-1))) /* magic formula */
  32
  33 /* Full device numbers that are special to the boot monitor and FS. */
  34 #  define DEV_RAM             0x0100    /* device number of /dev/ram */
  35 #  define DEV_IMGRD           0x0106    /* device number of /dev/imgrd */
  36
  37 #define FLOPPY_MAJOR               2    /* major device for floppy disks */
  38 #define TTY_MAJOR                  4    /* major device for ttys */
  39 #define CTTY_MAJOR                 5    /* major device for /dev/tty */
  40
  41 #define INET_MAJOR                 7    /* major device for inet */
  42
  43 #define FILTER_MAJOR              11    /* major device for filter driver */
  44
  45 #define LOG_MAJOR                 15    /* major device for log driver */
  46 #  define IS_KLOG_DEV              0    /* minor device for /dev/klog */
  47
  48 #define HELLO_MAJOR               17    /* major device for hello driver */
  49
  50 #endif /* _DMAP_H */