ps2dev.h

/*
 * ps2dev.h - a library to interface with ps2 hosts. See comments in
 * ps2dev.cpp.
 * Written by Chris J. Kiick, January 2008.
 * modified by Gene E. Scogin, August 2008.
 * Release into public domain.
 */

#ifndef ps2dev_h
#define ps2dev_h

#include "Arduino.h"

class PS2dev
{
  public:
    PS2dev(int clk, int data);

    // Enum containing all of the non-special keycodes/scancodes
    // (if you can't find the scancode you're looking for here, check the special scancodes)
    enum ScanCodes
    {
      ESCAPE = 0x76,
      F1 = 0x05,
      F2 = 0x06,
      F3 = 0x04,
      F4 = 0x0c,
      F5 = 0x03,
      F6 = 0x0b,
      F7 = 0x83,
      F8 = 0x0a,
      F9 = 0x01,
      F10 = 0x09,
      F11 = 0x78,
      F12 = 0x07,
      SCROLL_LOCK = 0x7e,
      ACCENT = 0x0e,
      ONE = 0x16,
      TWO = 0x1e,
      THREE = 0x26,
      FOUR = 0x25,
      FIVE = 0x2e,
      SIX = 0x36,
      SEVEN = 0x3d,
      EIGHT = 0x3e,
      NINE = 0x46,
      ZERO = 0x45,
      MINUS = 0x4e,
      EQUAL = 0x55,
      BACKSPACE = 0x66,
      TAB = 0x0d,
      Q = 0x15,
      W = 0x1d,
      E = 0x24,
      R = 0x2d,
      T = 0x2c,
      Y = 0x35,
      U = 0x3c,
      I = 0x43,
      O = 0x44,
      P = 0x4d,
      OPEN_BRACKET = 0x54,
      CLOSE_BRACKET = 0x5b,
      BACKSLASH = 0x5d,
      CAPS_LOCK = 0x58,
      A = 0x1c,
      S = 0x1b,
      D = 0x23,
      F = 0x2b,
      G = 0x34,
      H = 0x33,
      J = 0x3b,
      K = 0x42,
      L = 0x4b,
      SEMI_COLON = 0x4c,
      TICK_MARK = 0x52,
      ENTER = 0x5a,
      LEFT_SHIFT = 0x12,
      Z = 0x1a,
      X = 0x22,
      C = 0x21,
      V = 0x2a,
      B = 0x32,
      N = 0x31,
      M = 0x3a,
      COMMA = 0x41,
      PERIOD = 0x49,
      SLASH = 0x4a,
      RIGHT_SHIFT = 0x59,
      LEFT_CONTROL = 0x14,
      LEFT_ALT = 0x11,
      SPACE = 0x29,
      NUM_LOCK = 0x77,
      ASTERISK = 0x7c,
      NUMPAD_MINUS = 0x7b,
      NUMPAD_SEVEN = 0x6c,
      NUMPAD_EIGHT = 0x75,
      NUMPAD_NINE = 0x7d,
      PLUS = 0x79,
      NUMPAD_FOUR = 0x6b,
      NUMPAD_FIVE = 0x73,
      NUMPAD_SIX = 0x74,
      NUMPAD_ONE = 0x69,
      NUMPAD_TWO = 0x72,
      NUMPAD_THREE = 0x7a,
      NUMPAD_ZERO = 0x70,
      DECIMAL = 0x71
    };

    // Enum containing all of the special keycodes/scancodes
    // All press transmissions using these are preceded with 0xE0
    // All release transmissions using these are preceded with 0xE0, 0xF0
    enum SpecialScanCodes
    {
      LEFT_WIN = 0x1f,
      RIGHT_ALT = 0x11,
      RIGHT_WIN = 0x27,
      MENUS = 0x2f,
      RIGHT_CONTROL = 0x14,
      INSERT = 0x70,
      HOME = 0x6c,
      PAGE_UP = 0x7d,
      DELETE = 0x71,
      END = 0x69,
      PAGE_DOWN = 0x7a,
      UP_ARROW = 0x75,
      LEFT_ARROW = 0x6b,
      DOWN_ARROW = 0x72,
      RIGHT_ARROW = 0x74,
      DIVIDE = 0x4a,
      NUMPAD_ENTER = 0x5a,
      NEXT_TRACK = 0x4d,
      PREVIOUS_TRACK = 0x15,
      STOP = 0x3b,
      PLAY_PAUSE = 0x34,
      MUTE = 0x23,
      VOLUME_UP = 0x32,
      VOLUME_DOWN = 0x21,
      MEDIA_SELECT = 0x50,
      EMAIL = 0x48,
      CALCULATOR = 0x2b,
      MY_COMPUTER = 0x40,
      WWW_SEARCH = 0x10,
      WWW_HOME = 0x3a,
      WWW_BACK = 0x38,
      WWW_FORWARD = 0x30,
      WWW_STOP = 0x28,
      WWW_REFRESH = 0x20,
      WWW_FAVORITES = 0x18,
      POWER = 0x5e,
      SLEEP = 0x5f,
      WAKE = 0x63
    };

    int write(unsigned char data);
    int read(unsigned char * data);
    int available();
    void keyboard_init();
    int keyboard_press(unsigned char code);
    int keyboard_release(unsigned char code);
    int keyboard_press_special(unsigned char code);
    int keyboard_release_special(unsigned char code);
    int keyboard_press_printscreen();
    int keyboard_release_printscreen();
    int keyboard_mkbrk_printscreen();
    int keyboard_pausebreak();
    int keyboard_reply(unsigned char cmd, unsigned char *leds);
    int keyboard_handle(unsigned char *leds);
    int keyboard_mkbrk(unsigned char code);
    int keyboard_special_mkbrk(unsigned char code);
  private:
    int _ps2clk;
    int _ps2data;
    void golo(int pin);
    void gohi(int pin);
    void ack();
};

#endif /* ps2dev_h */