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Commit 07fb24aa authored by Manu Gautam's avatar Manu Gautam
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dwc3: gadget: Add support for transfer complete events counting 



Add counting of USB transfers completion events/interrupts
so that it can be used to determine USB transfers or BUS usage.
This is a simple approach which gives reasonable accuracy to
avoid counting actual bytes that got transferred over USB.

Change-Id: Ib06e916ef1b3a7dbf0b3c720d306e922043a7f33
Signed-off-by: default avatarManu Gautam <mgautam@codeaurora.org>
parent eab5f6f8

drivers/usb/dwc3/gadget.c

+3 −0
Original line number Diff line number Diff line
@@ -2467,6 +2467,8 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, 
			break;

	} while (1);



	dwc->gadget.xfer_isr_count++;



	if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&

			list_empty(&dep->req_queued)) {

		if (list_empty(&dep->request_list))
@@ -2643,6 +2645,7 @@ static void dwc3_disconnect_gadget(struct dwc3 *dwc) 
		dwc->gadget_driver->disconnect(&dwc->gadget);

		spin_lock(&dwc->lock);

	}

	dwc->gadget.xfer_isr_count = 0;

}



static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum)