#define DATA1 2 #define CMD1 3 #define ATT1 4 #define CLK1 5 /*#define DATA2 6 #define CMD2 7 #define ATT2 8 #define CLK2 9 */ #include "HID.h" #if ARDUINO < 10606 #error The Joystick2 library requires Arduino IDE 1.6.6 or greater. Please update your IDE. #endif #if !defined(USBCON) #error The Joystick2 library can only be used with a USB MCU (e.g. Arduino Leonardo, Arduino Micro, etc.). #endif #if !defined(_USING_HID) #error "legacy HID core (non pluggable)" #endif #define JOYSTICK_REPORT_ID 0x03 #define JOYSTICK2_REPORT_ID 0x04 #define JOYSTICK3_REPORT_ID 0x05 #define JOYSTICK4_REPORT_ID 0x06 #define JOYSTICK_STATE_SIZE 6 //#define DEBUG //================================================================================ //================================================================================ // Joystick (Gamepad) #define HIDDESC_MACRO(REPORT_ID) \ /* Joystick # */ \ 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ \ 0x09, 0x04, /* USAGE (Joystick) */ \ 0xa1, 0x01, /* COLLECTION (Application) */ \ 0x85, REPORT_ID, /* REPORT_ID */ \ /* 16 Buttons */ \ 0x05, 0x09, /* USAGE_PAGE (Button) */ \ 0x19, 0x01, /* USAGE_MINIMUM (Button 1) */ \ 0x29, 0x10, /* USAGE_MAXIMUM (Button 16) */ \ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ \ 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */ \ 0x75, 0x01, /* REPORT_SIZE (1) */ \ 0x95, 0x10, /* REPORT_COUNT (16) */ \ 0x55, 0x00, /* UNIT_EXPONENT (0) */ \ 0x65, 0x00, /* UNIT (None) */ \ 0x81, 0x02, /* INPUT (Data,Var,Abs) */ \ /* X and Y Axis */ \ 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */ \ 0x09, 0x01, /* USAGE (Pointer) */ \ 0xA1, 0x00, /* COLLECTION (Physical) */ \ 0x09, 0x32, /* USAGE (Z) */ \ 0x09, 0x35, /* USAGE (Rz) */ \ 0x09, 0x30, /* USAGE (x) */ \ 0x09, 0x31, /* USAGE (y) */ \ 0x15, 0x00, /* LOGICAL_MINIMUM (0) */ \ 0x26, 0xff, 0x00, /* LOGICAL_MAXIMUM (255) */ \ 0x75, 0x08, /* REPORT_SIZE (8) */ \ 0x95, 0x04, /* REPORT_COUNT (4) */ \ 0x81, 0x02, /* INPUT (Data,Var,Abs) */ \ 0xc0, /* END_COLLECTION */ \ 0xc0 /* END_COLLECTION */ static const uint8_t hidReportDescriptor[] PROGMEM = { HIDDESC_MACRO(JOYSTICK_REPORT_ID), HIDDESC_MACRO(JOYSTICK2_REPORT_ID), HIDDESC_MACRO(JOYSTICK3_REPORT_ID), HIDDESC_MACRO(JOYSTICK4_REPORT_ID) }; class Joystick_ { private: uint8_t joystickId; uint8_t reportId; uint8_t olddata[JOYSTICK_STATE_SIZE]; uint8_t flag; public: uint8_t type; uint8_t data[JOYSTICK_STATE_SIZE]; Joystick_(uint8_t initJoystickId, uint8_t initReportId) { // Setup HID report structure static bool usbSetup = false; if (!usbSetup) { static HIDSubDescriptor node(hidReportDescriptor, sizeof(hidReportDescriptor)); HID().AppendDescriptor(&node); usbSetup = true; } // Initalize State joystickId = initJoystickId; reportId = initReportId; data[0] = 0; data[1] = 0; data[2] = 127; data[3] = 127; data[4] = 127; data[5] = 127; memcpy(olddata, data, JOYSTICK_STATE_SIZE); sendState(1); } void updateState() { if (type != 0x73 && type != 0x53) { data[2] = 127; data[3] = 127; data[4] = 127; data[5] = 127; } if (type == 0x41 || type == 0x73 || type == 0x53) { if (memcmp(olddata, data, JOYSTICK_STATE_SIZE)) { memcpy(olddata, data, JOYSTICK_STATE_SIZE); flag = 1; } } //sendState(); } void sendState(uint8_t force = 0) { if (flag || force) { // HID().SendReport(Report number, array of values in same order as HID descriptor, length) HID().SendReport(reportId, data, JOYSTICK_STATE_SIZE); flag = 0; } } }; Joystick_ Joystick[4] = { Joystick_(0, JOYSTICK_REPORT_ID), Joystick_(1, JOYSTICK2_REPORT_ID), Joystick_(2, JOYSTICK3_REPORT_ID), Joystick_(3, JOYSTICK4_REPORT_ID) }; //================================================================================ //================================================================================ uint8_t shift(uint8_t _dataOut) // Does the actual shifting, both in and out simultaneously { uint8_t _temp = 0; uint8_t _dataIn = 0; uint8_t _delay = 6; //2 unstable; //clock 250kHz delayMicroseconds(100); //max acknowledge waiting time 100us for (uint8_t _i = 0; _i <= 7; _i++) { if ( _dataOut & (1 << _i) ) // write bit digitalWrite(CMD1, HIGH); else digitalWrite(CMD1, LOW); digitalWrite(CLK1, LOW); // read bit delayMicroseconds(_delay); _temp = digitalRead(DATA1); if (_temp) { _dataIn = _dataIn | (B00000001 << _i); } digitalWrite(CLK1, HIGH); delayMicroseconds(_delay); } return _dataIn; } void setup() { pinMode(DATA1, INPUT_PULLUP); pinMode(CMD1, OUTPUT); pinMode(ATT1, OUTPUT); pinMode(CLK1, OUTPUT); /*pinMode(DATA2, INPUT_PULLUP); pinMode(CMD2, OUTPUT); pinMode(ATT2, OUTPUT); pinMode(CLK2, OUTPUT);*/ #ifdef DEBUG Serial.begin(115200); #endif } void loop() { // http://problemkaputt.de/psx-spx.htm#controllerandmemorycardsignals uint8_t head, padding, multitap; #ifdef DEBUG uint8_t data[100]; #endif // first: read gamepad normally digitalWrite(ATT1, LOW); //digitalWrite(ATT2, LOW); head = shift(0x01); Joystick[0].type = shift(0x42); padding = shift(0x01); //read multitap in next command Joystick[0].data[0] = ~shift(0x00); //buttons Joystick[0].data[1] = ~shift(0x00); //buttons Joystick[0].data[2] = shift(0x00); //right analog Joystick[0].data[3] = shift(0x00); //right analog Joystick[0].data[4] = shift(0x00); //left analog Joystick[0].data[5] = shift(0x00); //left analog digitalWrite(ATT1, HIGH); //digitalWrite(ATT2, HIGH); //delay(100); // second: check and read multitap digitalWrite(ATT1, LOW); head = shift(0x01); multitap = shift(0x42); padding = shift(0x00); //next time normal read if (multitap == 0x80) { for (uint8_t i = 0; i < 4; i++) { Joystick[i].type = shift(0x00); padding = shift(0x00); Joystick[i].data[0] = ~shift(0x00); //buttons Joystick[i].data[1] = ~shift(0x00); //buttons Joystick[i].data[2] = shift(0x00); //right analog Joystick[i].data[3] = shift(0x00); //right analog Joystick[i].data[4] = shift(0x00); //left analog Joystick[i].data[5] = shift(0x00); //left analog } } digitalWrite(ATT1, HIGH); #ifdef DEBUG for (uint8_t i = 0; i < 4; i++) { Serial.print(" multitap: "); Serial.println(multitap, HEX); Serial.print(" type: 0x"); Serial.print(Joystick[i].type, HEX); Serial.print(" data: 0x"); Serial.print(Joystick[i].data[0], HEX); Serial.print(" 0x"); Serial.print(Joystick[i].data[1], HEX); Serial.print(" 0x"); Serial.print(Joystick[i].data[2], HEX); Serial.print(" 0x"); Serial.print(Joystick[i].data[3], HEX); Serial.print(" 0x"); Serial.print(Joystick[i].data[4], HEX); Serial.print(" 0x"); Serial.print(Joystick[i].data[5], HEX); Serial.println(); } /*Serial.print(" type: 0x"); Serial.print(Joystick[0].type, HEX); Serial.print(" data: 0x"); Serial.print(Joystick[0].data[0], HEX); Serial.print(" 0x"); Serial.print(Joystick[0].data[1], HEX); Serial.print(" 0x"); Serial.print(Joystick[0].data[2], HEX); Serial.print(" 0x"); Serial.print(Joystick[0].data[3], HEX); Serial.print(" 0x"); Serial.print(Joystick[0].data[4], HEX); Serial.print(" 0x"); Serial.print(Joystick[0].data[5], HEX); Serial.println();*/ Serial.flush(); #endif Joystick[0].updateState(); Joystick[1].updateState(); Joystick[2].updateState(); Joystick[3].updateState(); Joystick[0].sendState(); Joystick[1].sendState(); Joystick[2].sendState(); Joystick[3].sendState(); delayMicroseconds(1000); }