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PS2Events.h
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/*
PS2Events.h - PS2Events library
Copyright (c) 2018 @speedfox_uk and Free Software Foundation. All right reserved.
Written by @spedfox_uk <[email protected]>, based on the work of
Christian Weichel <[email protected]>
** Modified by @speedfox_uk <[email protected]> so that it is based on
Keybaord Scan codes and not ASCII Charactersi, August 2018
** Mostly rewritten Paul Stoffregen <[email protected]>, June 2010
** Modified for use with Arduino 13 by L. Abraham Smith, <[email protected]> *
** Modified for easy interrup pin assignement on method begin(datapin,irq_pin). Cuningan <[email protected]> **
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PS2Events_h
#define PS2Events_h
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h" // for attachInterrupt, FALLING
#else
#include "WProgram.h"
#endif
#include "utility/int_pins.h"
// Every call to read() returns a single byte for each
// keystroke. These configure what byte will be returned
// for each "special" key. To ignore a key, use zero.
#define PS2_TAB 9
#define PS2_ENTER 13
#define PS2_LINEFEED 10
#define PS2_BACKSPACE 127
#define PS2_ESC 27
#define PS2_INSERT 0
#define PS2_DELETE 127
#define PS2_HOME 0
#define PS2_END 0
#define PS2_PAGEUP 25
#define PS2_PAGEDOWN 26
#define PS2_UPARROW 11
#define PS2_LEFTARROW 8
#define PS2_DOWNARROW 12
#define PS2_RIGHTARROW 21
#define PS2_F1 0
#define PS2_F2 0
#define PS2_F3 0
#define PS2_F4 0
#define PS2_F5 0
#define PS2_F6 0
#define PS2_F7 0
#define PS2_F8 0
#define PS2_F9 0
#define PS2_F10 0
#define PS2_F11 0
#define PS2_F12 0
#define PS2_SCROLL 0
#define PS2_INVERTED_EXCLAMATION 161 // ¡
#define PS2_CENT_SIGN 162 // ¢
#define PS2_POUND_SIGN 163 // £
#define PS2_CURRENCY_SIGN 164 // ¤
#define PS2_YEN_SIGN 165 // ¥
#define PS2_BROKEN_BAR 166 // ¦
#define PS2_SECTION_SIGN 167 // §
#define PS2_DIAERESIS 168 // ¨
#define PS2_COPYRIGHT_SIGN 169 // ©
#define PS2_FEMININE_ORDINAL 170 // ª
#define PS2_LEFT_DOUBLE_ANGLE_QUOTE 171 // «
#define PS2_NOT_SIGN 172 // ¬
#define PS2_HYPHEN 173
#define PS2_REGISTERED_SIGN 174 // ®
#define PS2_MACRON 175 // ¯
#define PS2_DEGREE_SIGN 176 // °
#define PS2_PLUS_MINUS_SIGN 177 // ±
#define PS2_SUPERSCRIPT_TWO 178 // ²
#define PS2_SUPERSCRIPT_THREE 179 // ³
#define PS2_ACUTE_ACCENT 180 // ´
#define PS2_MICRO_SIGN 181 // µ
#define PS2_PILCROW_SIGN 182 // ¶
#define PS2_MIDDLE_DOT 183 // ·
#define PS2_CEDILLA 184 // ¸
#define PS2_SUPERSCRIPT_ONE 185 // ¹
#define PS2_MASCULINE_ORDINAL 186 // º
#define PS2_RIGHT_DOUBLE_ANGLE_QUOTE 187 // »
#define PS2_FRACTION_ONE_QUARTER 188 // ¼
#define PS2_FRACTION_ONE_HALF 189 // ½
#define PS2_FRACTION_THREE_QUARTERS 190 // ¾
#define PS2_INVERTED_QUESTION MARK 191 // ¿
#define PS2_A_GRAVE 192 // À
#define PS2_A_ACUTE 193 // Á
#define PS2_A_CIRCUMFLEX 194 // Â
#define PS2_A_TILDE 195 // Ã
#define PS2_A_DIAERESIS 196 // Ä
#define PS2_A_RING_ABOVE 197 // Å
#define PS2_AE 198 // Æ
#define PS2_C_CEDILLA 199 // Ç
#define PS2_E_GRAVE 200 // È
#define PS2_E_ACUTE 201 // É
#define PS2_E_CIRCUMFLEX 202 // Ê
#define PS2_E_DIAERESIS 203 // Ë
#define PS2_I_GRAVE 204 // Ì
#define PS2_I_ACUTE 205 // Í
#define PS2_I_CIRCUMFLEX 206 // Î
#define PS2_I_DIAERESIS 207 // Ï
#define PS2_ETH 208 // Ð
#define PS2_N_TILDE 209 // Ñ
#define PS2_O_GRAVE 210 // Ò
#define PS2_O_ACUTE 211 // Ó
#define PS2_O_CIRCUMFLEX 212 // Ô
#define PS2_O_TILDE 213 // Õ
#define PS2_O_DIAERESIS 214 // Ö
#define PS2_MULTIPLICATION 215 // ×
#define PS2_O_STROKE 216 // Ø
#define PS2_U_GRAVE 217 // Ù
#define PS2_U_ACUTE 218 // Ú
#define PS2_U_CIRCUMFLEX 219 // Û
#define PS2_U_DIAERESIS 220 // Ü
#define PS2_Y_ACUTE 221 // Ý
#define PS2_THORN 222 // Þ
#define PS2_SHARP_S 223 // ß
#define PS2_a_GRAVE 224 // à
#define PS2_a_ACUTE 225 // á
#define PS2_a_CIRCUMFLEX 226 // â
#define PS2_a_TILDE 227 // ã
#define PS2_a_DIAERESIS 228 // ä
#define PS2_a_RING_ABOVE 229 // å
#define PS2_ae 230 // æ
#define PS2_c_CEDILLA 231 // ç
#define PS2_e_GRAVE 232 // è
#define PS2_e_ACUTE 233 // é
#define PS2_e_CIRCUMFLEX 234 // ê
#define PS2_e_DIAERESIS 235 // ë
#define PS2_i_GRAVE 236 // ì
#define PS2_i_ACUTE 237 // í
#define PS2_i_CIRCUMFLEX 238 // î
#define PS2_i_DIAERESIS 239 // ï
#define PS2_eth 240 // ð
#define PS2_n_TILDE 241 // ñ
#define PS2_o_GRAVE 242 // ò
#define PS2_o_ACUTE 243 // ó
#define PS2_o_CIRCUMFLEX 244 // ô
#define PS2_o_TILDE 245 // õ
#define PS2_o_DIAERESIS 246 // ö
#define PS2_DIVISION 247 // ÷
#define PS2_o_STROKE 248 // ø
#define PS2_u_GRAVE 249 // ù
#define PS2_u_ACUTE 250 // ú
#define PS2_u_CIRCUMFLEX 251 // û
#define PS2_u_DIAERESIS 252 // ü
#define PS2_y_ACUTE 253 // ý
#define PS2_thorn 254 // þ
#define PS2_y_DIAERESIS 255 // ÿ
#define PS2_KEYMAP_SIZE 136
/**
* Purpose: Contains details of an indificaul key event (either a key peing
* pressed or released).
*/
typedef struct {
int code;
int state;
int mod;
} KeyEvent;
/**
* Purpose: Provides an easy access to sense key events on PS/2 Keybaords
* Author: @speedfox_uk <[email protected]>
*/
class PS2Events {
public:
/**
* This constructor does basically nothing. Please call the begin(int,int)
* method before using any other method of this class.
*/
PS2Events();
/**
* Starts the keyboard "service" by registering the external interrupt.
* setting the pin modes correctly and driving those needed to high.
* The propably best place to call this method is in the setup routine.
*/
static void begin(uint8_t dataPin, uint8_t irq_pin);
/**
* Returns true if there is a key event to be read, false if not.
*/
static bool eventAvailable();
/**
* Updates the key event structure provided with the details of the elast event.
*/
static void readEvent(KeyEvent* evt);
};
// interrupt pins for known boards
#if !defined(CORE_INT0_PIN)
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) // Arduino Mega
#define CORE_INT0_PIN 2
#define CORE_INT1_PIN 3
#define CORE_INT2_PIN 21
#define CORE_INT3_PIN 20
#define CORE_INT4_PIN 19
#define CORE_INT5_PIN 18
#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__) // Sanguino
#define CORE_INT0_PIN 10
#define CORE_INT1_PIN 11
#define CORE_INT2_PIN 2
#else // Arduino Duemilanove, Diecimila, LilyPad, Mini, Fio, etc...
#define CORE_INT0_PIN 2
#define CORE_INT1_PIN 3
#endif
#endif
#endif