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#include <avr/interrupt.h>
#include <util/delay.h>
#include "usb_mouse.h"
#include "print.h"
#include "debug.h"
uint8_t usb_mouse_protocol=1;
int8_t usb_mouse_send(int8_t x, int8_t y, int8_t wheel_v, int8_t wheel_h, uint8_t buttons)
{
uint8_t intr_state, timeout;
if (!usb_configured()) return -1;
if (x == -128) x = -127;
if (y == -128) y = -127;
if (wheel_v == -128) wheel_v = -127;
if (wheel_h == -128) wheel_h = -127;
intr_state = SREG;
cli();
UENUM = MOUSE_ENDPOINT;
timeout = UDFNUML + 50;
while (1) {
// are we ready to transmit?
if (UEINTX & (1<<RWAL)) break;
SREG = intr_state;
// has the USB gone offline?
if (!usb_configured()) return -1;
// have we waited too long?
if (UDFNUML == timeout) return -1;
// get ready to try checking again
intr_state = SREG;
cli();
UENUM = MOUSE_ENDPOINT;
}
UEDATX = buttons;
UEDATX = x;
UEDATX = y;
if (usb_mouse_protocol) {
UEDATX = wheel_v;
UEDATX = wheel_h;
}
UEINTX = 0x3A;
SREG = intr_state;
return 0;
}
void usb_mouse_print(int8_t x, int8_t y, int8_t wheel_v, int8_t wheel_h, uint8_t buttons) {
if (!debug_mouse) return;
print("usb_mouse[btn|x y v h]: ");
phex(buttons); print("|");
phex(x); print(" ");
phex(y); print(" ");
phex(wheel_v); print(" ");
phex(wheel_h); print("\n");
}
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