IntrRxEmpty
if (intr_status & (IntrRxDone | IntrRxEmpty)) {
enable &= ~(IntrRxDone | IntrRxEmpty);
if (enable & (IntrRxDone | IntrRxEmpty)) {
enable &= ~(IntrRxDone | IntrRxEmpty);
writel(IntrRxDone | IntrRxEmpty, ioaddr + IntrClear);
} while (intr_status & (IntrRxDone | IntrRxEmpty));
intr_status |= IntrRxDone | IntrRxEmpty;
writel(IntrRxDone | IntrRxEmpty | IntrDMAErr |
IntrRxEmpty | \