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https://github.com/mcgurk/Arduino-USB-HID-RetroJoystickAdapter
synced 2024-12-22 15:38:49 -05:00
Create RetroJoystickAdapter_PlaystationAnalog.ino
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mcgurk
GitHub
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189
RetroJoystickAdapter_PlaystationAnalog.ino
Normal file
189
RetroJoystickAdapter_PlaystationAnalog.ino
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#include "Joystick.h"
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//http://www.gamesx.com/controldata/psxcont/psxcont.htm
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#define DATA 2
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#define CMD 3
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#define ATT 4
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#define CLK 5
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//#define DEBUG
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byte shift(byte dataOut, uint8_t readmode = 0) { // Does the actual shifting, both in and out
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byte dataIn = 0;
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byte delay = 10;
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for (uint8_t i = 0; i <= 7; i++) {
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digitalWrite(CMD, bitRead(dataOut,i));
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digitalWrite(CLK, LOW);
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delayMicroseconds(delay);
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if (digitalRead(DATA)) bitSet(dataIn, i);
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digitalWrite(CLK, HIGH);
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delayMicroseconds(delay);
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}
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return dataIn;
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}
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uint8_t type;
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uint8_t ready;
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uint8_t btngrp1;
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uint8_t btngrp2;
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uint8_t analog1;
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uint8_t analog2;
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uint8_t analog3;
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uint8_t analog4;
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void debug() {
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Serial.print("d1: ");
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Serial.print(type,HEX);
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Serial.print(", ");
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Serial.print("d2: ");
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Serial.print(ready,HEX);
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Serial.print(", ");
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Serial.print("d3: ");
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Serial.print(btngrp1,HEX);
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Serial.print(", ");
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Serial.print("d4: ");
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Serial.print(btngrp2,HEX);
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Serial.print(", ");
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Serial.print("d5: ");
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Serial.print(analog1,HEX);
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Serial.print(", ");
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Serial.print("d6: ");
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Serial.print(analog2,HEX);
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Serial.print(", ");
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Serial.print("d7: ");
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Serial.print(analog3,HEX);
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Serial.print(", ");
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Serial.print("d8: ");
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Serial.println(analog4,HEX);
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}
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void readJoysticks() {
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digitalWrite(ATT, LOW);
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shift(0x01);
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type = shift(0x42); //type (0x41 / 0x73)
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ready = shift(0xFF); //ready (0x5a)
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btngrp1 = shift(0xFF);
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btngrp2 = shift(0xFF);
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if (type == 0x73) {
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analog1 = shift(0xFF);
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analog2 = shift(0xFF);
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analog3 = shift(0xFF);
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analog4 = shift(0xFF);
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}
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digitalWrite(ATT, HIGH);
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delayMicroseconds(1000);
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#ifdef DEBUG
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debug();
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delay(100);
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#endif
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}
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//btngrp1
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#define LEFT 0x80
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#define DOWN 0x40
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#define RIGHT 0x20
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#define UP 0x10
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#define START 0x08
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#define JOYR 0x04
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#define JOYL 0x02
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#define SELECT 0x01
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//btngrp2
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#define SQUARE 0x80
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#define X 0x40
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#define O 0x20
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#define TRIANGLE 0x10
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#define R1 0x08
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#define L1 0x04
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#define R2 0x02
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#define L2 0x01
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void interpretJoystickState_analog() {
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Joystick.setXAxis( ((signed int)analog3)-127 );
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Joystick.setYAxis( ((signed int)analog4)-127 );
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Joystick.setXAxisRotation( (analog1*1.4) );
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Joystick.setYAxisRotation( (255-analog2)*1.4 );
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Joystick.setButton(0, !(btngrp1&START) ); //BUTTON1 (Start)
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Joystick.setButton(1, !(btngrp1&SELECT) ); //BUTTON2 (Select)
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Joystick.setButton(2, !(btngrp2&X) ); //BUTTON3 (A)
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Joystick.setButton(3, !(btngrp2&O) ); //BUTTON4 (B)
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Joystick.setButton(4, !(btngrp2&SQUARE) ); //BUTTON5 (X)
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Joystick.setButton(5, !(btngrp2&TRIANGLE) ); //BUTTON6 (Y)
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Joystick.setButton(6, !(btngrp2&L2) ); //BUTTON7 (LB)
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Joystick.setButton(7, !(btngrp2&R2) ); //BUTTON8 (RB)
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Joystick.setButton(8, !(btngrp2&L1) ); //BUTTON9 (LT)
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Joystick.setButton(9, !(btngrp2&R1) ); //BUTTON10 (RT)
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Joystick.setButton(10, !(btngrp1&JOYL) ); //BUTTON11 (Left Thumb)
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Joystick.setButton(11, !(btngrp1&JOYR) ); //BUTTON12 (Right Thumb)
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Joystick.setHatSwitch(0,-1);
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if ( !(btngrp1&UP) ) Joystick.setHatSwitch(0,0); //UP
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if ( !(btngrp1&DOWN) ) Joystick.setHatSwitch(0,180); //DOWN
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if ( !(btngrp1&LEFT) ) Joystick.setHatSwitch(0,270); //LEFT
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if ( !(btngrp1&RIGHT) ) Joystick.setHatSwitch(0,90); //RIGHT
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}
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void interpretJoystickState() {
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Joystick.setYAxis(0);
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Joystick.setXAxis(0);
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if ( !(btngrp1&UP) ) Joystick.setYAxis(-127); //UP
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if ( !(btngrp1&DOWN) ) Joystick.setYAxis(127); //DOWN
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if ( !(btngrp1&LEFT) ) Joystick.setXAxis(-127); //LEFT
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if ( !(btngrp1&RIGHT) ) Joystick.setXAxis(127); //RIGHT
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Joystick.setButton(0, !(btngrp1&START) ); //BUTTON1 (Start)
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Joystick.setButton(1, !(btngrp1&SELECT) ); //BUTTON2 (Select)
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Joystick.setButton(2, !(btngrp2&X) ); //BUTTON3 (A)
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Joystick.setButton(3, !(btngrp2&O) ); //BUTTON4 (B)
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Joystick.setButton(4, !(btngrp2&SQUARE) ); //BUTTON5 (X)
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Joystick.setButton(5, !(btngrp2&TRIANGLE) ); //BUTTON6 (Y)
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Joystick.setButton(6, !(btngrp2&L2) ); //BUTTON7 (LB)
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Joystick.setButton(7, !(btngrp2&R2) ); //BUTTON8 (RB)
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Joystick.setButton(8, !(btngrp2&L1) ); //BUTTON9 (LT)
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Joystick.setButton(9, !(btngrp2&R1) ); //BUTTON10 (RT)
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Joystick.setXAxisRotation(180);
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Joystick.setYAxisRotation(180);
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Joystick.setHatSwitch(0,-1);
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Joystick.setButton(10, 0);
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Joystick.setButton(11, 0);
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}
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void setup() {
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pinMode(DATA, INPUT_PULLUP);
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pinMode(CMD, OUTPUT);
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pinMode(ATT, OUTPUT);
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pinMode(CLK, OUTPUT);
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Joystick.begin(false);
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#ifdef DEBUG
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Serial.begin(9600);
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#endif
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}
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void loop() {
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readJoysticks();
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if (type == 0x73) {
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interpretJoystickState_analog();
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}
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else {
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interpretJoystickState();
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}
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Joystick.sendState();
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}
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