461 lines
11 KiB
C++
461 lines
11 KiB
C++
//-----------------------------------------------------------------------------
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//
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// Keyboard PS/2 to Apple II v1.10
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//
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// Date: 2019-11-05 20:00pm
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//
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// João Ricardo Pagotto
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// https://github.com/joaopagotto
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//
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// This is free open-source software, distributed under a very liberal license
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// (the well-known MIT license). It may be used for any purpose, including
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// commercial purposes, at absolutely no cost. Just download it and use it.
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//
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//-----------------------------------------------------------------------------
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#include <PS2KeyAdvanced.h>
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PS2KeyAdvanced keyboard;
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//---------------------------
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const int PS2_DATA = 3;
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const int PS2_IRQ = 2;
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//---------------------------
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#define DEBUG 1
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#define APII_TIME_STROBE 10 // microsecs
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#define APII_TIME_INTERVAL 500 // microsecs
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#define APII_TIME_RESET 10 // msecs
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const int APII_STROBE = 4;
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const int APII_RESET = 5;
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const int APII_B0 = 6;
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const int APII_B1 = 7;
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const int APII_B2 = 8;
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const int APII_B3 = 9;
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const int APII_B4 = 10;
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const int APII_B5 = 11;
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const int APII_B6 = 12;
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//-----------------------------------------------------------------------------
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void apII_send_key(unsigned char data);
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void apII_send_reset();
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//-----------------------------------------------------------------------------
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void setup()
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{
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pinMode(APII_RESET, OUTPUT);
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digitalWrite(APII_RESET, HIGH);
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pinMode(APII_STROBE, OUTPUT);
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digitalWrite(APII_STROBE, LOW);
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pinMode(APII_B0, OUTPUT);
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digitalWrite(APII_B0, LOW);
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pinMode(APII_B1, OUTPUT);
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digitalWrite(APII_B1, LOW);
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pinMode(APII_B2, OUTPUT);
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digitalWrite(APII_B2, LOW);
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pinMode(APII_B3, OUTPUT);
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digitalWrite(APII_B3, LOW);
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pinMode(APII_B4, OUTPUT);
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digitalWrite(APII_B4, LOW);
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pinMode(APII_B5, OUTPUT);
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digitalWrite(APII_B5, LOW);
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pinMode(APII_B6, OUTPUT);
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digitalWrite(APII_B6, LOW);
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//-------------------------
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#if defined(DEBUG)
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Serial.begin(9600);
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Serial.println("Keyboard PS/2 to Apple II v1.00 (DEBUG)\n\r");
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#endif
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//-------------------------
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pinMode(LED_BUILTIN, OUTPUT);
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//-------------------------
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keyboard.begin(PS2_DATA, PS2_IRQ); // Setup keyboard pins
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keyboard.setNoBreak(1); // No break codes for keys (when key released)
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keyboard.setNoRepeat(1); // Don't repeat shift ctrl etc
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keyboard.setLock(PS2_LOCK_NUM); // Sets the current status of Locks and LEDs
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}
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//-----------------------------------------------------------------------------
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void loop()
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{
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int data;
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unsigned char chr;
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if ( ! keyboard.available() )
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return;
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data = keyboard.read();
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chr = ( data & 0xFF );
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if ( data == 0 )
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return;
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//---------------------------
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// Debug
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#if defined(DEBUG)
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Serial.print("> ");
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if ( data & PS2_BREAK ) Serial.print("BREAK, ");
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if ( data & PS2_SHIFT ) Serial.print("SHIFT, ");
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if ( data & PS2_CTRL ) Serial.print("CTRL, ");
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if ( data & PS2_CAPS ) Serial.print("CAPS, ");
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if ( data & PS2_ALT ) Serial.print("ALT, ");
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if ( data & PS2_ALT_GR ) Serial.print("ALTGR, ");
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if ( data & PS2_GUI ) Serial.print("GUI, ");
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if ( data & PS2_FUNCTION ) Serial.print("FUNCTION, ");
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Serial.print(chr, DEC);
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Serial.print(" '");
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Serial.print((char)chr);
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Serial.print("'");
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Serial.print("\n\r");
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#endif
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//---------------------------
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if ( data & PS2_FUNCTION )
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{
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if ( data & PS2_CTRL )
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{
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switch ( chr )
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{
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case PS2_KEY_BREAK:
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apII_send_reset(); break; // Ctrl + Break
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}
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return;
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}
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if ( data & PS2_SHIFT )
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{
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switch ( chr )
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{
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case PS2_KEY_INTL1:
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apII_send_key(0xBF); break; // ?
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}
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return;
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}
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switch ( chr )
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{
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case PS2_KEY_ENTER:
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case PS2_KEY_KP_ENTER:
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apII_send_key(0x8D); break; // [Enter]
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case PS2_KEY_ESC:
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apII_send_key(0x9B); break; // [Esc]
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case PS2_KEY_SPACE:
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apII_send_key(0xA0); break; // [Space]
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case PS2_KEY_BS:
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case PS2_KEY_L_ARROW:
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apII_send_key(0x88); break; // [Left_Arrow]
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case PS2_KEY_R_ARROW:
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apII_send_key(0x95); break; // [Right_Arrow]
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case PS2_KEY_INTL1:
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apII_send_key(0xAF); break; // /
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}
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return;
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}
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else
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{
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if ( data & PS2_CTRL )
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{
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switch ( chr )
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{
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case PS2_KEY_C:
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apII_send_key(0x83); break; // Ctrl + C
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}
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return;
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}
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if ( data & PS2_SHIFT )
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{
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switch ( chr )
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{
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case PS2_KEY_SINGLE:
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apII_send_key(0xA2); break; // "
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case PS2_KEY_1:
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apII_send_key(0xA1); break; // !
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case PS2_KEY_2:
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apII_send_key(0xC0); break; // @
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case PS2_KEY_3:
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apII_send_key(0xA3); break; // #
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case PS2_KEY_4:
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apII_send_key(0xA4); break; // $
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case PS2_KEY_5:
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apII_send_key(0xA5); break; // %
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case PS2_KEY_7:
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apII_send_key(0xA6); break; // &
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case PS2_KEY_8:
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apII_send_key(0xAA); break; // *
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case PS2_KEY_9:
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apII_send_key(0xA8); break; // (
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case PS2_KEY_0:
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apII_send_key(0xA9); break; // )
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case PS2_KEY_EQUAL:
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apII_send_key(0xAB); break; // +
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case PS2_KEY_APOS:
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apII_send_key(0xDE); break; // ^
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case PS2_KEY_COMMA:
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apII_send_key(0xBC); break; // <
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case PS2_KEY_DOT:
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apII_send_key(0xBE); break; // >
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case PS2_KEY_DIV:
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apII_send_key(0xBA); break; // :
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}
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return;
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}
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if ( data < 256 )
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{
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switch ( chr )
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{
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case PS2_KEY_KP0:
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case PS2_KEY_0:
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apII_send_key(0xB0); break; // 0
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case PS2_KEY_KP1:
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case PS2_KEY_1:
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apII_send_key(0xB1); break; // 1
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case PS2_KEY_KP2:
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case PS2_KEY_2:
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apII_send_key(0xB2); break; // 2
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case PS2_KEY_KP3:
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case PS2_KEY_3:
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apII_send_key(0xB3); break; // 3
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case PS2_KEY_KP4:
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case PS2_KEY_4:
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apII_send_key(0xB4); break; // 4
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case PS2_KEY_KP5:
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case PS2_KEY_5:
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apII_send_key(0xB5); break; // 5
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case PS2_KEY_KP6:
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case PS2_KEY_6:
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apII_send_key(0xB6); break; // 6
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case PS2_KEY_KP7:
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case PS2_KEY_7:
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apII_send_key(0xB7); break; // 7
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case PS2_KEY_KP8:
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case PS2_KEY_8:
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apII_send_key(0xB8); break; // 8
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case PS2_KEY_KP9:
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case PS2_KEY_9:
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apII_send_key(0xB9); break; // 9
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case PS2_KEY_KP_TIMES:
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apII_send_key(0xAA); break; // *
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case PS2_KEY_KP_MINUS:
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apII_send_key(0xAD); break; // -
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case PS2_KEY_KP_PLUS:
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apII_send_key(0xBB); break; // +
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case PS2_KEY_KP_DOT:
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apII_send_key(0xAC); break; // .
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case PS2_KEY_KP_ENTER:
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apII_send_key(0x8D); break; // [ENTER]
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case PS2_KEY_KP_COMMA:
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apII_send_key(0xAE); break; // ,
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case PS2_KEY_A:
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apII_send_key(0xC1); break; // A
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case PS2_KEY_B:
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apII_send_key(0xC2); break; // B
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case PS2_KEY_C:
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apII_send_key(0xC3); break; // C
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case PS2_KEY_D:
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apII_send_key(0xC4); break; // D
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case PS2_KEY_E:
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apII_send_key(0xC5); break; // E
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case PS2_KEY_F:
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apII_send_key(0xC6); break; // F
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case PS2_KEY_G:
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apII_send_key(0xC7); break; // G
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case PS2_KEY_H:
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apII_send_key(0xC8); break; // H
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case PS2_KEY_I:
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apII_send_key(0xC9); break; // I
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case PS2_KEY_J:
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apII_send_key(0xCA); break; // J
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case PS2_KEY_K:
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apII_send_key(0xCB); break; // K
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case PS2_KEY_L:
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apII_send_key(0xCC); break; // L
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case PS2_KEY_M:
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apII_send_key(0xCD); break; // M
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case PS2_KEY_N:
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apII_send_key(0xCE); break; // N
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case PS2_KEY_O:
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apII_send_key(0xCF); break; // O
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case PS2_KEY_P:
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apII_send_key(0xD0); break; // P
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case PS2_KEY_Q:
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apII_send_key(0xD1); break; // Q
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case PS2_KEY_R:
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apII_send_key(0xD2); break; // R
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case PS2_KEY_S:
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apII_send_key(0xD3); break; // S
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case PS2_KEY_T:
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apII_send_key(0xD4); break; // T
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case PS2_KEY_U:
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apII_send_key(0xD5); break; // U
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case PS2_KEY_V:
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apII_send_key(0xD6); break; // V
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case PS2_KEY_W:
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apII_send_key(0xD7); break; // W
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case PS2_KEY_X:
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apII_send_key(0xD8); break; // X
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case PS2_KEY_Y:
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apII_send_key(0xD9); break; // Y
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case PS2_KEY_Z:
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apII_send_key(0xDA); break; // Z
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case PS2_KEY_SINGLE:
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apII_send_key(0xA7); break; // '
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case PS2_KEY_MINUS:
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apII_send_key(0xAD); break; // -
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case PS2_KEY_EQUAL:
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apII_send_key(0xBD); break; // =
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case PS2_KEY_COMMA:
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apII_send_key(0xAC); break; // ,
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case PS2_KEY_DOT:
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apII_send_key(0xAE); break; // .
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case PS2_KEY_DIV:
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apII_send_key(0xBB); break; // ;
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case PS2_KEY_KP_DIV:
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apII_send_key(0xAF); break; // /
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}
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}
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}
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}
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//-----------------------------------------------------------------------------
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void apII_send_key(unsigned char data)
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{
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//-------------------------
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// Keyboard Data
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digitalWrite(APII_B0, bitRead(data, 0));
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digitalWrite(APII_B1, bitRead(data, 1));
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digitalWrite(APII_B2, bitRead(data, 2));
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digitalWrite(APII_B3, bitRead(data, 3));
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digitalWrite(APII_B4, bitRead(data, 4));
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digitalWrite(APII_B5, bitRead(data, 5));
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digitalWrite(APII_B6, bitRead(data, 6));
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//-------------------------
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// Keyboard Strobe
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digitalWrite(APII_STROBE, HIGH);
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delayMicroseconds(APII_TIME_STROBE);
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digitalWrite(APII_STROBE, LOW);
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//-------------------------
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// Keyboard Key Interval
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delayMicroseconds(APII_TIME_INTERVAL);
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}
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//-----------------------------------------------------------------------------
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void apII_send_reset()
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{
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digitalWrite(APII_RESET, LOW);
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delay(APII_TIME_RESET);
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digitalWrite(APII_RESET, HIGH);
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}
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//-----------------------------------------------------------------------------
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