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_NDEV, STYLE_DEV, STYLE_DEVA, STYLE_TTY, STYLE_CTTY,
   8         STYLE_CLONE, STYLE_CLONE_A };
   9 #define IS_DEV_STYLE(s) (s>=STYLE_NDEV && s<=STYLE_CLONE_A)
  10
  11 #define dev_style_asyn(devstyle)        ((devstyle) == STYLE_DEVA || \
  12                                         (devstyle) == STYLE_CLONE_A)
  13
  14 /*===========================================================================*
  15  *                       Major and minor device numbers                      *
  16  *===========================================================================*/
  17
  18 /* Total number of different devices. */
  19 #define NR_DEVICES      NR_SYS_PROCS    /* number of (major) devices */
  20
  21 /* Major device numbers. */
  22 #define NONE_MAJOR                 0    /*  0 = not used                      */
  23 #define MEMORY_MAJOR               1    /*  1 = /dev/mem    (memory devices)  */
  24 #define FLOPPY_MAJOR               2    /*  2 = /dev/fd0    (floppy disks)    */
  25                                         /*  3 = /dev/c0                       */
  26 #define TTY_MAJOR                  4    /*  4 = /dev/tty00  (ttys)            */
  27 #define CTTY_MAJOR                 5    /*  5 = /dev/tty                      */
  28 #define PRINTER_MAJOR              6    /*  6 = /dev/lp     (printer driver)  */
  29 #define INET_MAJOR                 7    /*  7 = /dev/ip     (inet)            */
  30                                         /*  8 = /dev/c1                       */
  31                                         /*  9 = not used                      */
  32                                         /* 10 = /dev/c2                       */
  33 #define FILTER_MAJOR              11    /* 11 = /dev/filter (filter driver)   */
  34                                         /* 12 = /dev/c3                       */
  35 #define AUDIO_MAJOR               13    /* 13 = /dev/audio  (audio driver)    */
  36 #define FBD_MAJOR                 14    /* 14 = /dev/fbd    (faulty block dev)*/
  37 #define LOG_MAJOR                 15    /* 15 = /dev/klog   (log driver)      */
  38 #define RANDOM_MAJOR              16    /* 16 = /dev/random (random driver)   */
  39 #define HELLO_MAJOR               17    /* 17 = /dev/hello  (hello driver)    */
  40 #define UDS_MAJOR                 18    /* 18 = /dev/uds    (pfs)             */
  41 #define FB_MAJOR                  19    /* 18 = /dev/fb0    (fb driver)       */
  42
  43
  44 /* Minor device numbers for memory driver. */
  45 #  define RAM_DEV_OLD              0    /* minor device for /dev/ram */
  46 #  define MEM_DEV                  1    /* minor device for /dev/mem */
  47 #  define KMEM_DEV                 2    /* minor device for /dev/kmem */
  48 #  define NULL_DEV                 3    /* minor device for /dev/null */
  49 #  define BOOT_DEV                 4    /* minor device for /dev/boot */
  50 #  define ZERO_DEV                 5    /* minor device for /dev/zero */
  51 #  define IMGRD_DEV                6    /* minor device for /dev/imgrd */
  52 #  define RAM_DEV_FIRST            7    /* first minor device for /dev/ram* */
  53
  54 #define CTRLR(n) ((n)==0 ? 3 : (8 + 2*((n)-1))) /* magic formula */
  55
  56 /* Minor device numbers for log driver. */
  57 #  define IS_KLOG_DEV              0    /* minor device for /dev/klog */
  58
  59 /* Full device numbers that are special to the boot monitor and FS. */
  60 #  define DEV_RAM     ((dev_t) 0x0100)  /* device number of /dev/ram */
  61 #  define DEV_IMGRD   ((dev_t) 0x0106)  /* device number of /dev/imgrd */
  62
  63 #endif /* _DMAP_H */
  64