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