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Create c64_usb_mouse.ino

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Jarno Lehtinen 2017-08-09 00:55:47 +03:00 committed by GitHub
parent 25c79bb082
commit 88257b06ba
1 changed files with 122 additions and 0 deletions
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C64_1351_Mouse/c64_usb_mouse.ino Normal file
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#include <hidboot.h>
#include <usbhub.h>
#define POTSENSE 4 //ICP1 (Arduino Pro Micro: pin4, Arduino Uno: pin8)
#define POTX 9 // POT AX 9, also OC1A
#define POTY 10 // POT AY 5, also OC1B
#define LBTN 5 // BTN 6, Joystick FIRE switch
#define RBTN 6 // UP 1, Joystick UP switch
int16_t dx = 0;
int16_t dy = 0;
uint8_t buttons = 0;
uint8_t update = 1;
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) {
dx=mi->dX;
dy=mi->dY;
update = 1;
};
void MouseRptParser::OnLeftButtonUp(MOUSEINFO *mi) {
buttons &= ~1;
update = 1;
};
void MouseRptParser::OnLeftButtonDown(MOUSEINFO *mi) {
buttons |= 1;
update = 1;
};
void MouseRptParser::OnRightButtonUp(MOUSEINFO *mi) {
buttons &= ~2;
update = 1;
};
void MouseRptParser::OnRightButtonDown(MOUSEINFO *mi) {
buttons |= 2;
update = 1;
};
void MouseRptParser::OnMiddleButtonUp(MOUSEINFO *mi) {
};
void MouseRptParser::OnMiddleButtonDown(MOUSEINFO *mi) {
};
USB Usb;
USBHub Hub(&Usb);
HIDBoot<USB_HID_PROTOCOL_MOUSE> HidMouse(&Usb);
MouseRptParser Prs;
static uint8_t potmouse_xcounter = 0; ///< x axis counter
static uint8_t potmouse_ycounter = 0; ///< y axis counter
static volatile uint16_t x; ///< precalculated OCR1A value (YPOT)
static volatile uint16_t y; ///< precalculated OCR1B value (XPOT)
void setup() {
if (Usb.Init() == -1) {
}
delay(200);
HidMouse.SetReportParser(0, &Prs);
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
TIMSK1 = _BV(ICIE1); // ICIE1: Timer/Counter1, Input Capture Interrupt Enable
TCCR1B = _BV(ICNC1) | _BV(CS10);
}
void loop() {
Usb.Task();
if (update) {
potmouse_xcounter = (potmouse_xcounter + (dx/2)) & 0177; // modulo 128
potmouse_ycounter = (potmouse_ycounter - (dy/2)) & 0177;
(buttons & 001) ? pinMode(LBTN, OUTPUT) : pinMode(LBTN, INPUT);
(buttons & 002) ? pinMode(RBTN, OUTPUT) : pinMode(RBTN, INPUT);
cli();
x = (320 + potmouse_xcounter)*16;
y = (320 + potmouse_ycounter)*16;
sei();
update = 0;
}
delayMicroseconds(100);
}
ISR(TIMER1_CAPT_vect) {
// OC1A/OC1B -> LOW
TCCR1A = _BV(COM1A1) | _BV(COM1B1); // Clear OC1A / OC1B on Compare Match (Set output to low level)
TCCR1C |= _BV(FOC1A) | _BV(FOC1B); // FOC1A / FOC1B Force Output Compare A and B (that are in register TCCR1C)
// init the output compare values
OCR1A = ICR1 + x;
OCR1B = ICR1 + y;
TCCR1A = _BV(COM1A1) | _BV(COM1A0) | _BV(COM1B1) | _BV(COM1B0); // Set OC1A / OC1B on Compare Match (Set output to high level).
// OCIE1A: Timer/Counter Output Compare Match Interrupt Enable A, ISR(TIMER1_COMPA_vect) // disable ICIE1, Input Capture Interrupt
TIMSK1 = _BV(OCIE1A);
TIFR1 = 0xff; // Clear all pending TIMER1 interrupt flags
}
ISR(TIMER1_COMPA_vect) {
TIMSK1 = _BV(ICIE1); // ICIE1: Timer/Counter1, Input Capture Interrupt Enable // disable TIMER1 interrupts (Compare Match Interrupt A)
TIFR1 = 0xff; // Clear all pending TIMER1 interrupt flags
}