#define KB_KEY_LSHIFT 0x81    // 1000 0001
#define KB_KEY_RSHIFT 0X82    // 1000 0010
#define KB_KEY_LALT   0X84    // 1000 0100
#define KB_KEY_RALT   0x88    // 1000 1000
#define KB_KEY_LCTRL  0x90    // 1001 0000
#define KB_KEY_RCTRL  0xA0    // 1010 0000
#define KB_KEY_FSHIFT 0xC0    // 1100 0000
extern volatile unsigned char KeyModifierStatus;

#define KB_PREFIX_GRAY   0x01       // Gray
#define KB_PREFIX_BREAK  0x02       // Break code
#define KB_PREFIX_PAUSE  0x04       // Pause/break key
#define KB_PREFIX_PAUSE1 0x08       // Recieved first unsigned char from pause/break
extern volatile unsigned char KeyScancodePrefix;

#define KB_KEY_SCROLL  0xF1   // 1111 0001
#define KB_KEY_NUM     0xF2   // 1111 0010
#define KB_KEY_CAPS    0xF4   // 1111 0100
extern volatile unsigned char KeyLightsStatus;

extern unsigned char KeyboardScancodeSet;

enum KB_KEYS {
       KB_KEY_PAUSE         =      0x00,
       KB_KEY_F9            =      0x01,
       KB_KEY_F7            =      0x02,
       KB_KEY_F5            =      0X03,
       KB_KEY_F3            =      0x04,
       KB_KEY_F1            =      0x05,
       KB_KEY_F2            =      0x06,
       KB_KEY_F12           =      0x07,
       KB_KEY_PRINTSCRN     =      0x08,
       KB_KEY_F10           =      0x09,
       KB_KEY_F8            =      0x0A,
       KB_KEY_F6            =      0x0B,
       KB_KEY_F4            =      0x0C,
       KB_KEY_TAB           =      0x0D,
       KB_KEY_TILDA         =      0x0E,
       KB_KEY_Q             =      0x15,
       KB_KEY_1             =      0x16,
       KB_KEY_Z             =      0x1A,
       KB_KEY_S             =      0x1B,
       KB_KEY_A             =      0x1C,
       KB_KEY_W             =      0x1D,
       KB_KEY_2             =      0x1E,
       KB_KEY_LWIN          =      0x1F,
       KB_KEY_C             =      0x21,
       KB_KEY_X             =      0x22,
       KB_KEY_D             =      0x23,
       KB_KEY_E             =      0x24,
       KB_KEY_4             =      0x25,
       KB_KEY_3             =      0x26,
       KB_KEY_RWIN          =      0x27,
       KB_KEY_SPACE         =      0x29,
       KB_KEY_V             =      0x2A,
       KB_KEY_F             =      0x2B,
       KB_KEY_T             =      0x2C,
       KB_KEY_R             =      0x2D,
       KB_KEY_5             =      0x2E,
       KB_KEY_MENU          =      0x2F,
       KB_KEY_N             =      0x31,
       KB_KEY_B             =      0x32,
       KB_KEY_H             =      0x33,
       KB_KEY_G             =      0x34,
       KB_KEY_Y             =      0x35,
       KB_KEY_6             =      0x36,
       KB_KEY_M             =      0x3A,
       KB_KEY_J             =      0x3B,
       KB_KEY_U             =      0x3C,
       KB_KEY_7             =      0x3D,
       KB_KEY_8             =      0x3E,
       KB_KEY_COMMA         =      0x41,
       KB_KEY_K             =      0x42,
       KB_KEY_I             =      0x43,
       KB_KEY_O             =      0x44,
       KB_KEY_0             =      0x45,
       KB_KEY_9             =      0x46,
       KB_KEY_PERIOD        =      0x49,
       KB_KEY_SLASH         =      0x4A,
       KB_KEY_L             =      0x4B,
       KB_KEY_SEMICOLON     =      0x4C,
       KB_KEY_P             =      0x4D,
       KB_KEY_DASH          =      0x4E,
       KB_KEY_APOSTROPHE    =      0x52,
       KB_KEY_LBRACKET      =      0x54,
       KB_KEY_EQUAL         =      0x55,
       KB_KEY_NUMPAD_ENTER  =      0x59,
       KB_KEY_ENTER         =      0x5A,
       KB_KEY_RBRACKET      =      0x5B,
       KB_KEY_BACKSLASH     =      0x5D,
       KB_KEY_END           =      0x5E,
       KB_KEY_LEFT          =      0x5F,
       KB_KEY_HOME          =      0x60,
       KB_KEY_INSERT        =      0x61,
       KB_KEY_DELETE        =      0x62,
       KB_KEY_DOWN          =      0x63,
       KB_KEY_RIGHT         =      0x64,
       KB_KEY_UP            =      0x65,
       KB_KEY_BACKSPACE     =      0x66,
       KB_KEY_PGDOWN        =      0x67,
       KB_KEY_PGUP          =      0x68,
       KB_KEY_NUMPAD_1      =      0x69,
       KB_KEY_NUMPAD_SLASH  =      0x6A,
       KB_KEY_NUMPAD_4      =      0x6B,
       KB_KEY_NUMPAD_7      =      0x6C,
       KB_KEY_NUMPAD_0      =      0x70,
       KB_KEY_NUMPAD_COLON  =      0x71,
       KB_KEY_NUMPAD_2      =      0x72,
       KB_KEY_NUMPAD_5      =      0x73,
       KB_KEY_NUMPAD_6      =      0x74,
       KB_KEY_NUMPAD_8      =      0x75,
       KB_KEY_ESC           =      0x76,
       KB_KEY_F11           =      0x78,
       KB_KEY_NUMPAD_PLUS   =      0x79,
       KB_KEY_NUMPAD_3      =      0x7A,
       KB_KEY_NUMPAD_MINUS  =      0x7B,
       KB_KEY_NUMPAD_ASTERISK =    0x7C,
       KB_KEY_NUMPAD_9      =      0x7D
};
      
typedef struct {
      unsigned char status;
      unsigned char lights;
      unsigned char scancode;
      unsigned char character;
} kb_key;


extern char getch();
extern kb_key get_key();
extern char scancode_to_ascii(unsigned char scancode);
extern unsigned char get_key_status(unsigned char scancode);
extern void kb_set_repeat(float rate, int delay);
extern void kb_set_LEDs(unsigned char status);