Ignore events that happen when an endpoint is stalled/halted

Author: AGlass0fMilk

usb/device/targets/TARGET_NORDIC/TARGET_MCU_NRF52840/USBPhy_Nordic.cpp

@@ -450,41 +450,44 @@ void USBPhyHw::process() {
 		case NRF_DRV_USBD_EVT_EPTRANSFER:
 			if(usb_event.data.eptransfer.status == NRF_USBD_EP_OK)
 			{
-				if(IS_IN_EP(usb_event.data.eptransfer.ep))
+				if(!nrf_drv_usbd_ep_stall_check(usb_event.data.eptransfer.ep))
 				{
-					if((usb_event.data.eptransfer.ep & 0x7F) == 0)
+					if(IS_IN_EP(usb_event.data.eptransfer.ep))
 					{
-						events->ep0_in();
-						// Check for pending virtual status transfer
-						if(virtual_status_xfer_event)
+						if((usb_event.data.eptransfer.ep & 0x7F) == 0)
 						{
-							// Notify the upper stack that the status transfer is done
-							// as well at this point
-							virtual_status_xfer_event = false;
-							events->ep0_out();
-
+							events->ep0_in();
+							// Check for pending virtual status transfer
+							if(virtual_status_xfer_event)
+							{
+								// Notify the upper stack that the status transfer is done
+								// as well at this point
+								virtual_status_xfer_event = false;
+								events->ep0_out();
+
+							}
 						}
+						else
+							events->in((usb_ep_t) usb_event.data.eptransfer.ep);
 					}
 					else
-						events->in((usb_ep_t) usb_event.data.eptransfer.ep);
-				}
-				else
-				{
-					if((usb_event.data.eptransfer.ep & 0x7F) == 0)
 					{
-						events->ep0_out();
-
-						// Check for pending virtual status transfer
-						if(virtual_status_xfer_event)
+						if((usb_event.data.eptransfer.ep & 0x7F) == 0)
 						{
-							// Notify the upper stack that the status transfer is done
-							// as well at this point
-							virtual_status_xfer_event = false;
-							events->ep0_in();
+							events->ep0_out();
+
+							// Check for pending virtual status transfer
+							if(virtual_status_xfer_event)
+							{
+								// Notify the upper stack that the status transfer is done
+								// as well at this point
+								virtual_status_xfer_event = false;
+								events->ep0_in();
+							}
 						}
+						else
+							events->out((usb_ep_t) usb_event.data.eptransfer.ep);
 					}
-					else
-						events->out((usb_ep_t) usb_event.data.eptransfer.ep);
 				}
 			}
 			break;