/* eloWaitReply
*/
int eloWaitReply(unsigned char type, unsigned char *reply, int fd) {
int ok;
int i, result;
int reply_p = 0;
int sum = ELO_INIT_CHECKSUM;
i = ELO_MAX_TRIALS;
do {
ok = 0;
result = eloWaitForInput(fd, ELO_MAX_WAIT);
if (result > 0) {
ok = eloGetPacket(reply, &reply_p, &sum, fd);
if (ok && reply[1] != type && type != ELO_PARAMETER) {
#ifdef DEBUG_MOUSE
fprintf(stderr, "Wrong reply received\n");
#endif
ok = 0;
}
}
else {
#ifdef DEBUG_MOUSE
fprintf(stderr, "No input!\n");
#endif
}
if (result == 0) {
i--;
}
} while(!ok && (i>0));
return ok;
}
int
eloReadPosition(_THIS, int fd, int *x, int *y, int *button_state, int *realx,
int *realy)
{
unsigned char buffer[ELO_PACKET_SIZE];
int pointer = 0;
int checksum = ELO_INIT_CHECKSUM;
while (pointer < ELO_PACKET_SIZE) {
if (eloGetPacket(buffer, &pointer, &checksum, fd)) {
break;
}
}
if (!eloParsePacket(buffer, realx, realy, button_state)) {
return 0;
}
*x = *realx;
*y = *realy;
eloConvertXY(this, x, y);
return 1;
}
