usb: dwc2: Update target (u)frame calculation (48dac4e4) · Commits · 戴 / test

In service interval based scheduling target (u)frame must be set as a last frame in this the service interval. Acked-by:

drivers/usb/dwc2/gadget.c

+17 −0

Original line number	Diff line number	Diff line
		@@ -2830,6 +2830,23 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep)
		if (using_desc_dma(hsotg)) {
		hs_ep->target_frame = hsotg->frame_number;
		dwc2_gadget_incr_frame_num(hs_ep);

		/* In service interval mode target_frame must
		* be set to last (u)frame of the service interval.
		*/
		if (hsotg->params.service_interval) {
		/* Set target_frame to the first (u)frame of
		* the service interval
		*/
		hs_ep->target_frame &= ~hs_ep->interval + 1;

		/* Set target_frame to the last (u)frame of
		* the service interval
		*/
		dwc2_gadget_incr_frame_num(hs_ep);
		dwc2_gadget_dec_frame_num_by_one(hs_ep);
		}

		dwc2_gadget_start_isoc_ddma(hs_ep);
		return;
		}