usb/host/xhci-ring.c

1877 			       struct xhci_interrupter *ir,
2567 			   struct xhci_interrupter *ir,
2944 			 ir->event_ring->deq_seg,
2945 			 ir->event_ring->dequeue),
2957 static int xhci_handle_event_trb(struct xhci_hcd *xhci, struct xhci_interrupter *ir,
2962 	trace_xhci_handle_event(ir->event_ring, &event->generic);
2977 		handle_port_status(xhci, ir, event);
2980 		handle_tx_event(xhci, ir, &event->trans_event);
3008 				     struct xhci_interrupter *ir,
3014 	temp_64 = xhci_read_64(xhci, &ir->ir_set->erst_dequeue);
3015 	deq = xhci_trb_virt_to_dma(ir->event_ring->deq_seg,
3016 				   ir->event_ring->dequeue);
3027 	temp_64 = ir->event_ring->deq_seg->num & ERST_DESI_MASK;
3033 	xhci_write_64(xhci, temp_64, &ir->ir_set->erst_dequeue);
3038 					 struct xhci_interrupter *ir)
3040 	if (!ir->ip_autoclear) {
3043 		irq_pending = readl(&ir->ir_set->irq_pending);
3045 		writel(irq_pending, &ir->ir_set->irq_pending);
3053 static int xhci_handle_events(struct xhci_hcd *xhci, struct xhci_interrupter *ir)
3059 	xhci_clear_interrupt_pending(xhci, ir);
3062 	if (!ir->event_ring || !ir->event_ring->dequeue) {
3072 		temp = xhci_read_64(xhci, &ir->ir_set->erst_dequeue);
3073 		xhci_write_64(xhci, temp | ERST_EHB, &ir->ir_set->erst_dequeue);
3078 	while (unhandled_event_trb(ir->event_ring)) {
3079 		err = xhci_handle_event_trb(xhci, ir, ir->event_ring->dequeue);
3086 			xhci_update_erst_dequeue(xhci, ir, false);
3088 			if (ir->isoc_bei_interval > AVOID_BEI_INTERVAL_MIN)
3089 				ir->isoc_bei_interval = ir->isoc_bei_interval / 2;
3095 		inc_deq(xhci, ir->event_ring);
3101 	xhci_update_erst_dequeue(xhci, ir, true);
4012 				 struct xhci_interrupter *ir)
4023 	if (i && ir->isoc_bei_interval && xhci->quirks & XHCI_AVOID_BEI)
4024 		return !!(i % ir->isoc_bei_interval);
4033 	struct xhci_interrupter *ir;
4051 	ir = xhci->interrupters[0];
4139 				if (trb_block_event_intr(xhci, num_tds, i, ir))