mirror of
https://github.com/mcgurk/Arduino-USB-HID-RetroJoystickAdapter
synced 2024-11-11 19:55:08 -05:00
319 lines
10 KiB
C++
319 lines
10 KiB
C++
#include <hidboot.h>
|
|
#include <usbhub.h>
|
|
|
|
/*#define SENSEPORT PORTD ///< SID sense port
|
|
#define SENSEDDR DDRD ///< SID sense data direction
|
|
#define SENSEPIN PIND ///< SID sense input*/
|
|
#define POTSENSE 3 ///< INT1 attached to PORTD.3,
|
|
|
|
/*#define POTPORT PORTB ///< POT-controlling outputs X and Y
|
|
#define POTDDR DDRB ///< POT outputs data direction
|
|
#define POTPIN PINB ///< POT outputs input ;)*/
|
|
#define POTX 9 ///< X-line, also OC1A
|
|
#define POTY 10 ///< Y-line, also OC1B
|
|
#define LBTN 4 ///< Joystick FIRE switch
|
|
#define RBTN 5 ///< Joystick UP switch
|
|
|
|
/*#define JOYPORT PORTC ///< Joystick pins
|
|
#define JOYDDR DDRC ///< Joystick pins data direction (out = switch closed to gnd)
|
|
#define JOYPIN PINC ///< Joystick in*/
|
|
/*#define JOYUP 5 ///< Joystick UP switch
|
|
#define JOYDOWN 6 ///< Joystick DOWN switch
|
|
#define JOYLEFT 7 ///< Joystick LEFT switch
|
|
#define JOYRIGHT 8 ///< Joystick RIGHT switch
|
|
#define JOYFIRE 9 ///< Joystick FIRE switch*/
|
|
|
|
//#define DEBUG
|
|
|
|
int16_t dx=0;
|
|
int16_t dy=0;
|
|
uint8_t buttons=0;
|
|
|
|
uint8_t update = 0;
|
|
#define FIX_START 90
|
|
int16_t fix = FIX_START;
|
|
|
|
class MouseRptParser : public MouseReportParser {
|
|
protected:
|
|
void OnMouseMove(MOUSEINFO *mi);
|
|
void OnLeftButtonUp(MOUSEINFO *mi);
|
|
void OnLeftButtonDown(MOUSEINFO *mi);
|
|
void OnRightButtonUp(MOUSEINFO *mi);
|
|
void OnRightButtonDown(MOUSEINFO *mi);
|
|
void OnMiddleButtonUp(MOUSEINFO *mi);
|
|
void OnMiddleButtonDown(MOUSEINFO *mi);
|
|
};
|
|
void MouseRptParser::OnMouseMove(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.print("dx=");
|
|
Serial.print(mi->dX, DEC);
|
|
Serial.print(" dy=");
|
|
Serial.println(mi->dY, DEC);
|
|
#endif
|
|
dx=mi->dX;
|
|
dy=mi->dY;
|
|
update = 1;
|
|
};
|
|
void MouseRptParser::OnLeftButtonUp(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.println("L Butt Up");
|
|
#endif
|
|
buttons &= ~1;
|
|
update = 1;
|
|
};
|
|
void MouseRptParser::OnLeftButtonDown(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.println("L Butt Dn");
|
|
#endif
|
|
buttons |= 1;
|
|
update = 1;
|
|
fix++;
|
|
};
|
|
void MouseRptParser::OnRightButtonUp(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.println("R Butt Up");
|
|
#endif
|
|
buttons &= ~2;
|
|
update = 1;
|
|
};
|
|
void MouseRptParser::OnRightButtonDown(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.println("R Butt Dn");
|
|
#endif
|
|
buttons |= 2;
|
|
update = 1;
|
|
fix--;
|
|
};
|
|
void MouseRptParser::OnMiddleButtonUp(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.println("M Butt Up");
|
|
#endif
|
|
};
|
|
void MouseRptParser::OnMiddleButtonDown(MOUSEINFO *mi) {
|
|
#ifdef DEBUG
|
|
Serial.println("M Butt Dn");
|
|
#endif
|
|
fix = FIX_START;
|
|
};
|
|
|
|
USB Usb;
|
|
USBHub Hub(&Usb);
|
|
HIDBoot<USB_HID_PROTOCOL_MOUSE> HidMouse(&Usb);
|
|
|
|
MouseRptParser Prs;
|
|
|
|
|
|
enum _potmode {
|
|
POTMOUSE_C1351 = 0, //<! proportional mode
|
|
POTMOUSE_JOYSTICK //<! joystick mode
|
|
};
|
|
|
|
|
|
static uint8_t potmouse_xcounter; ///< x axis counter
|
|
static uint8_t potmouse_ycounter; ///< y axis counter
|
|
|
|
static volatile uint16_t ocr1a_load; ///< precalculated OCR1A value (YPOT)
|
|
static volatile uint16_t ocr1b_load; ///< precalculated OCR1B value (XPOT)
|
|
|
|
#define OCR_ZERO 320 ///< zero point (320us)
|
|
|
|
//static volatile uint8_t mode; ///< mouse mode
|
|
uint8_t mode; ///< mouse mode
|
|
|
|
void setup() {
|
|
#ifdef DEBUG
|
|
Serial.begin(115200);
|
|
Serial.println("Start");
|
|
Serial.flush();
|
|
delay(200);
|
|
#endif
|
|
|
|
if (Usb.Init() == -1) {
|
|
#ifdef DEBUG
|
|
Serial.println("OSC did not start.");
|
|
#endif
|
|
}
|
|
delay(200);
|
|
HidMouse.SetReportParser(0, &Prs);
|
|
|
|
#ifdef DEBUG
|
|
Serial.flush();
|
|
delay(200);
|
|
#endif
|
|
|
|
mode = POTMOUSE_C1351;
|
|
pinMode(LBTN, INPUT); pinMode(RBTN, INPUT);
|
|
|
|
pinMode(POTX, OUTPUT); pinMode(POTY, OUTPUT);
|
|
digitalWrite(POTX, HIGH); digitalWrite(POTY, HIGH);
|
|
pinMode(POTSENSE, INPUT); // pullup off, hi-biased by OC1A
|
|
attachInterrupt(digitalPinToInterrupt(POTSENSE), potSenseInt, FALLING);
|
|
|
|
potmouse_movt(0,0,0);
|
|
|
|
// prepare INT1
|
|
//GICR &= ~_BV(INT1); // disable INT1
|
|
//MCUCR &= ~(_BV(ISC11)|_BV(ISC10));
|
|
//MCUCR |= _BV(ISC11); // ISC11:ISC10 == 10, @negedge
|
|
}
|
|
|
|
void loop() {
|
|
Usb.Task();
|
|
if (update) {
|
|
potmouse_movt(dx, dy, buttons);
|
|
update = 0;
|
|
}
|
|
delayMicroseconds(200);
|
|
//potmouse_movt(dx, dy, buttons);
|
|
/*noInterrupts();
|
|
if(digitalRead(POTSENSE
|
|
interrupts();*/
|
|
}
|
|
|
|
|
|
void potmouse_movt(int16_t dx, int16_t dy, uint8_t button) {
|
|
uint16_t a, b;
|
|
|
|
switch (mode) {
|
|
case POTMOUSE_C1351:
|
|
/*potmouse_xcounter = (potmouse_xcounter + dx) & 077; // modulo 64
|
|
//potmouse_ycounter = (potmouse_ycounter + dy) & 077;
|
|
potmouse_ycounter = (potmouse_ycounter - dy) & 077;*/
|
|
|
|
//potmouse_xcounter = (potmouse_xcounter + (dx/2)) & 077; // modulo 64
|
|
//potmouse_ycounter = (potmouse_ycounter - (dy/2)) & 077;
|
|
potmouse_xcounter = (potmouse_xcounter + (dx/4)) & 077; // modulo 64
|
|
potmouse_ycounter = (potmouse_ycounter - (dy/4)) & 077;
|
|
|
|
//potmouse_xcounter = (millis()>>6) & 077; // modulo 64
|
|
//potmouse_ycounter = (millis()>>6) & 077;
|
|
/*(button & 001) ? (JOYDDR |= _BV(JOYFIRE)) : (JOYDDR &= ~_BV(JOYFIRE));
|
|
(button & 002) ? (JOYDDR |= _BV(JOYUP)) : (JOYDDR &= ~_BV(JOYUP));
|
|
(button & 004) ? (JOYDDR |= _BV(JOYDOWN)) : (JOYDDR &= ~_BV(JOYDOWN));*/
|
|
|
|
(button & 001) ? pinMode(LBTN, OUTPUT) : pinMode(LBTN, INPUT);
|
|
(button & 002) ? pinMode(RBTN, OUTPUT) : pinMode(RBTN, INPUT);
|
|
|
|
|
|
// scale should be 2x here, but for this particular chip, 66 counts work better where
|
|
// 64 counds should be. so 66/64=100/96 and times two
|
|
//a = (OCR_ZERO + potmouse_xcounter*200/96)*2; // "*2" because 16MHz, not 8MHz //yli
|
|
//b = (OCR_ZERO + potmouse_ycounter*200/96)*2; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO + potmouse_xcounter*2; // "*2" because 16MHz, not 8MHz
|
|
//b = OCR_ZERO + potmouse_ycounter*2; // "*2" because 16MHz, not 8MHz
|
|
//a = (OCR_ZERO + potmouse_xcounter*200/90)*2; // "*2" because 16MHz, not 8MHz
|
|
//b = (OCR_ZERO + potmouse_ycounter*200/90)*2; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2 + potmouse_xcounter*400/85; // "*2" because 16MHz, not 8MHz
|
|
//b = OCR_ZERO*2 + potmouse_ycounter*400/85; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2 + potmouse_xcounter*400/80; // "*2" because 16MHz, not 8MHz //ali
|
|
//b = OCR_ZERO*2 + potmouse_ycounter*400/80; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2 + potmouse_xcounter*400/93; // "*2" because 16MHz, not 8MHz //vois olla lähellä
|
|
//b = OCR_ZERO*2 + potmouse_ycounter*400/93; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2 + potmouse_xcounter*400/91; // "*2" because 16MHz, not 8MHz //vois olla lähellä
|
|
//b = OCR_ZERO*2 + potmouse_ycounter*400/91; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2-1 + potmouse_xcounter*400/94; // "*2" because 16MHz, not 8MHz
|
|
//b = OCR_ZERO*2-1 + potmouse_ycounter*400/94; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2-2 + potmouse_xcounter*400/92; // "*2" because 16MHz, not 8MHz
|
|
//b = OCR_ZERO*2-2 + potmouse_ycounter*400/92; // "*2" because 16MHz, not 8MHz
|
|
//a = OCR_ZERO*2+2 + potmouse_xcounter*400/92; // "*2" because 16MHz, not 8MHz //valuu vasemmalle alas
|
|
//b = OCR_ZERO*2+2 + potmouse_ycounter*400/92; // "*2" because 16MHz, not 8MHz
|
|
|
|
//a = OCR_ZERO*2 + potmouse_xcounter*400/fix; // "*2" because 16MHz, not 8MHz
|
|
//b = OCR_ZERO*2 + potmouse_ycounter*400/fix; // "*2" because 16MHz, not 8MHz
|
|
|
|
//a = OCR_ZERO*2-20 + potmouse_xcounter*400/fix; // "*2" because 16MHz, not 8MHz
|
|
//b = OCR_ZERO*2-20 + potmouse_ycounter*400/fix; // "*2" because 16MHz, not 8MHz
|
|
|
|
a = OCR_ZERO*2 + potmouse_xcounter*400/92; // "*2" because 16MHz, not 8MHz
|
|
b = OCR_ZERO*2 + potmouse_ycounter*400/92; // "*2" because 16MHz, not 8MHz
|
|
|
|
ocr1a_load = a;
|
|
ocr1b_load = b;
|
|
break;
|
|
case POTMOUSE_JOYSTICK:
|
|
/*JOYDDR &= ~(_BV(JOYFIRE) | _BV(JOYUP) | _BV(JOYDOWN) | _BV(JOYLEFT) | _BV(JOYRIGHT));
|
|
|
|
(dx < 0) ? (JOYDDR |= _BV(JOYLEFT)) : (JOYDDR &= ~_BV(JOYLEFT));
|
|
(dx > 0) ? (JOYDDR |= _BV(JOYRIGHT)): (JOYDDR &= ~_BV(JOYRIGHT));
|
|
(dy < 0) ? (JOYDDR |= _BV(JOYDOWN)) : (JOYDDR &= ~_BV(JOYDOWN));
|
|
(dy > 0) ? (JOYDDR |= _BV(JOYUP)) : (JOYDDR &= ~_BV(JOYUP));
|
|
(button & 001) ? (JOYDDR |= _BV(JOYFIRE)) : (JOYDDR &= ~_BV(JOYFIRE));
|
|
(button & 002) ? (POTDDR |= _BV(POTX)) : (POTDDR &= ~_BV(POTX));
|
|
|
|
TCNT1 = 65535-256;
|
|
TCCR1A = 0;
|
|
TCCR1B = _BV(CS12)|_BV(CS10);
|
|
TIFR |= _BV(TOV1);
|
|
TIMSK |= _BV(TOIE1);*/
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/// SID measuring cycle detected.
|
|
///
|
|
/// 1. SID pulls POTX low\n
|
|
/// 2. SID waits 256 cycles us\n
|
|
/// 3. SID releases POTX\n
|
|
/// 4. 0 to 255 cycles until the cap is charged\n
|
|
///
|
|
/// This handler stops the Timer1, clears OC1A/OC1B outputs,
|
|
/// loads the timer with values precalculated in potmouse_movt()
|
|
/// and starts the timer.
|
|
///
|
|
/// OC1A/OC1B (YPOT/XPOT) lines will go up by hardware.
|
|
/// Normal SID cycle is 512us. Timer will overflow not before 65535us.
|
|
/// Next cycle will begin before that so there's no need to stop the timer.
|
|
/// Output compare match interrupts are thus not used.
|
|
|
|
void potSenseInt() {
|
|
#ifdef DEBUG
|
|
Serial.println("PotSenseInt"); Serial.flush();
|
|
#endif
|
|
// SID started to measure the pots, uuu
|
|
|
|
// disable INT1 until the measurement cycle is complete
|
|
// stop the timer
|
|
TCCR1B = 0;
|
|
|
|
// clear OC1A/OC1B:
|
|
// 1. set output compare to clear OC1A/OC1B ("10" in table 37 on page 97)
|
|
TCCR1A = _BV(COM1A1) | _BV(COM1B1);
|
|
// 2. force output compare to make it happen
|
|
TCCR1C |= _BV(FOC1A) | _BV(FOC1B);
|
|
|
|
// Set OC1A/OC1B on Compare Match (Set output to high level)
|
|
// WGM13:0 = 00, normal mode: count from BOTTOM to MAX
|
|
TCCR1A = _BV(COM1A1) | _BV(COM1A0) | _BV(COM1B1) | _BV(COM1B0);
|
|
|
|
// load the timer
|
|
TCNT1 = 0;
|
|
|
|
// init the output compare values
|
|
OCR1A = ocr1a_load;
|
|
OCR1B = ocr1b_load;
|
|
|
|
// start timer with prescaler clk/8 (1 count = 1us) // (with 16MHz, 1 count = 0.5us)
|
|
TCCR1B = _BV(CS11);
|
|
|
|
// TEST!!!
|
|
//TCCR1B = _BV(CS12) | _BV(CS10); // Prescaler clock/1024
|
|
|
|
//TEST!!!:
|
|
/*OCR1A = 15625*2; // 16 000 000 / 1024 / 15625 = 1s
|
|
OCR1B = 15625/2;
|
|
TCCR1B = _BV(CS12) | _BV(CS10); // Prescaler clock/1024*/
|
|
|
|
}
|
|
|
|
/*
|
|
/// TIMER1 Overflow vector
|
|
///
|
|
/// Ends joystick emulator pulse.
|
|
ISR(TIMER1_OVF_vect) {
|
|
//JOYDDR &= ~(_BV(JOYFIRE) | _BV(JOYUP) | _BV(JOYDOWN) | _BV(JOYLEFT) | _BV(JOYRIGHT));
|
|
//POTDDR &= ~_BV(POTX);
|
|
TIMSK1 &= ~_BV(TOIE1);
|
|
}*/
|
|
|