minix/servers/input/input.h

   1 #ifndef _SERVERS_INPUT_H
   2 #define _SERVERS_INPUT_H
   3
   4 #include <minix/input.h>
   5
   6 /* Configuration. */
   7 #define EVENTBUF_SIZE           32
   8
   9 #define KBDMUX_MINOR            0
  10 #define KBD0_MINOR              1
  11 #define KBD_MINORS              4
  12
  13 #define MOUSEMUX_MINOR          64
  14 #define MOUSE0_MINOR            65
  15 #define MOUSE_MINORS            4
  16
  17 /* Constants. */
  18 #define KBDMUX_DEV              0
  19 #define FIRST_KBD_DEV           1
  20 #define LAST_KBD_DEV            (FIRST_KBD_DEV + KBD_MINORS - 1)
  21
  22 #define MOUSEMUX_DEV            (LAST_KBD_DEV + 1)
  23 #define FIRST_MOUSE_DEV         (MOUSEMUX_DEV + 1)
  24 #define LAST_MOUSE_DEV          (FIRST_MOUSE_DEV + MOUSE_MINORS - 1)
  25
  26 #define INPUT_DEV_MAX           (1 + KBD_MINORS + 1 + MOUSE_MINORS)
  27
  28 /* Input device state structure. */
  29 struct input_dev {
  30         devminor_t minor;               /* minor number of this device */
  31         endpoint_t owner;               /* owning driver endpoint, or NONE */
  32         char label[DS_MAX_KEYLEN];      /* label of owning driver */
  33         struct input_event eventbuf[EVENTBUF_SIZE];     /* event ring buffer */
  34         unsigned int tail;              /* tail into ring buffer */
  35         unsigned int count;             /* number of elements in ring buffer */
  36         int opened;                     /* has a process opened the device? */
  37         int suspended;                  /* is a process suspended on a read? */
  38         endpoint_t caller;              /* endpoint for suspended read */
  39         cp_grant_id_t grant;            /* grant for suspended read */
  40         cdev_id_t req_id;               /* request ID for suspended read */
  41         endpoint_t selector;            /* read-selecting endpoint, or NONE */
  42         unsigned int leds;              /* LED mask - saved across connects */
  43 };
  44
  45 #endif /* !_SERVERS_INPUT_H */