protocol/ps2_mouse.h

   1 /*
   2 Copyright 2011 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #ifndef PS2_MOUSE_H
  19 #define  PS2_MOUSE_H
  20
  21 #include <stdbool.h>
  22
  23 #define PS2_MOUSE_READ_DATA     0xEB
  24
  25 /*
  26  * Data format:
  27  * byte|7       6       5       4       3       2       1       0
  28  * ----+--------------------------------------------------------------
  29  *    0|Yovflw  Xovflw  Ysign   Xsign   1       Middle  Right   Left
  30  *    1|                    X movement(0-255)
  31  *    2|                    Y movement(0-255)
  32  */
  33 #define PS2_MOUSE_BTN_MASK      0x07
  34 #define PS2_MOUSE_BTN_LEFT      0
  35 #define PS2_MOUSE_BTN_RIGHT     1
  36 #define PS2_MOUSE_BTN_MIDDLE    2
  37 #define PS2_MOUSE_X_SIGN        4
  38 #define PS2_MOUSE_Y_SIGN        5
  39 #define PS2_MOUSE_X_OVFLW       6
  40 #define PS2_MOUSE_Y_OVFLW       7
  41
  42 uint8_t ps2_mouse_init(void);
  43 void ps2_mouse_task(void);
  44
  45 #endif