BUF_AVAIL_IRQ
if (irqsts & BUF_AVAIL_IRQ) {
BUF_AVAIL_IRQ | XFER_DONE_IRQ)
cf_interrupt_enable(acdev, BUF_AVAIL_IRQ | XFER_DONE_IRQ, 0);
cf_interrupt_enable(acdev, BUF_AVAIL_IRQ | XFER_DONE_IRQ, 1);