137 static u16 y_old[MAX_CONTACTS+1] = {0};  variable
562         y_old[id] = y;  in filter_point()
566     y_err = y > y_old[id] ? (y -y_old[id]) : (y_old[id] - y);  in filter_point()
598     y_new = y > y_old[id] ? (y_old[id] + filter_step_y) : (y_old[id] - filter_step_y);  in filter_point()
601     y_old[id] = y_new;  in filter_point()
613         y_old[id]=y;  in record_point()
617     y = (y_old[id] + y)/2;  in record_point()
626     if(y>y_old[id]){  in record_point()
627         y_err=y -y_old[id];  in record_point()
630         y_err=y_old[id]-y;  in record_point()
635         y_new = y;     y_old[id] = y;  in record_point()
644             y_new = y;     y_old[id] = y;  in record_point()
647             y_new = y_old[id];  in record_point()
652         y_new= y_old[id];  in record_point()