unsigned long get_time_ticks(void)
{
long clock_ticks;
#ifdef INCLUDED_FROM_KERNEL
clock_ticks = Tick_get();
#else
clock_ticks = clock();
#endif
return clock_ticks;
}
void CTP_interrupt(void)
{
REG_INT_FSIF01 = FSRX1 | FSERR1; // clear the interrupt
while (0 != (REG_EFSIF1_STATUS & RDBFx)) {
register uint32_t c = REG_EFSIF1_RXD;
if (0xaa == c) {
touch_state = STATE_X_HIGH;
} else if (0 != (0x80 & c) && (0xff != c)) {
touch_state = STATE_WAITING;
} else {
switch (touch_state) {
case STATE_WAITING:
break;
case STATE_X_HIGH:
if (0xff != c) {
x = c << 7;
}
++touch_state;
break;
case STATE_X_LOW:
if (0xff != c) {
x |= c;
}
++touch_state;
break;
case STATE_Y_HIGH:
if (0xff != c) {
y = c << 7;
}
++touch_state;
break;
case STATE_Y_LOW:
if (0xff != c) {
y |= c;
}
++touch_state;
break;
case STATE_TOUCH:
if (!BUFFER_FULL(CTPwrite, CTPread, CTPbuffer)) {
if (0x01 == c) {
CTPbuffer[CTPwrite].x = x;
CTPbuffer[CTPwrite].y = y;
CTPbuffer[CTPwrite].pressed = true;
CTPbuffer[CTPwrite].ticks = Tick_get();
BUFFER_NEXT(CTPwrite, CTPbuffer);
} else if (0x00 == c) {
CTPbuffer[CTPwrite].x = x;
CTPbuffer[CTPwrite].y = y;
CTPbuffer[CTPwrite].pressed = false;
CTPbuffer[CTPwrite].ticks = Tick_get();
BUFFER_NEXT(CTPwrite, CTPbuffer);
}
}
touch_state = STATE_WAITING;
break;
}
}
}
REG_EFSIF1_STATUS = 0; // clear errors
}