CIX_FIFO_EMPTY_INT
val |= CIX_FIFO_EMPTY_INT;
if (int_status & CIX_FIFO_EMPTY_INT) {
cix_mbox_write(priv, CIX_FIFO_EMPTY_INT, CIX_INT_CLEAR);
val &= ~CIX_FIFO_EMPTY_INT;
val &= ~(CIX_FIFO_EMPTY_INT | CIX_FIFO_OFLOW_INT);