Add INTERRUPT_CONTROL_ENDPOINT compile time option support for the UC3 devices.

LUFA/Drivers/USB/Core/UC3/USBInterrupt_UC3.c

@@ -121,6 +121,10 @@ ISR(USB_GEN_vect)
 		                           ENDPOINT_DIR_OUT, USB_Device_ControlEndpointSize,
 		                           ENDPOINT_BANK_SINGLE);
 
+		#if defined(INTERRUPT_CONTROL_ENDPOINT)
+		USB_INT_Enable(USB_INT_RXSTPI);
+		#endif
+
 		EVENT_USB_Device_Reset();
 	}
 	#endif
@@ -200,3 +204,22 @@ ISR(USB_GEN_vect)
 	}
 	#endif
 }
+
+#if defined(INTERRUPT_CONTROL_ENDPOINT) && defined(USB_CAN_BE_DEVICE)
+ISR(USB_COM_vect, ISR_BLOCK)
+{
+	uint8_t PrevSelectedEndpoint = Endpoint_GetCurrentEndpoint();
+
+	Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+	USB_INT_Disable(USB_INT_RXSTPI);
+
+	GlobalInterruptEnable();
+
+	USB_Device_ProcessControlRequest();
+
+	Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+	USB_INT_Enable(USB_INT_RXSTPI);
+	Endpoint_SelectEndpoint(PrevSelectedEndpoint);
+}
+#endif
+

LUFA/Drivers/USB/Core/UC3/USBInterrupt_UC3.h

@@ -43,6 +43,7 @@
 
 	/* Includes: */
 		#include "../../../../Common/Common.h"
+		#include "../Endpoint.h"
 
 	/* Enable C linkage for C++ Compilers: */
 		#if defined(__cplusplus)
@@ -68,14 +69,15 @@
 				USB_INT_SUSPI   = 3,
 				USB_INT_EORSTI  = 4,
 				USB_INT_SOFI    = 5,
+				USB_INT_RXSTPI  = 6,
 				#endif
 				#if (defined(USB_CAN_BE_HOST) || defined(__DOXYGEN__))			
-				USB_INT_HSOFI   = 6,
+				USB_INT_HSOFI   = 7,
-				USB_INT_DCONNI  = 7,
+				USB_INT_DCONNI  = 8,
-				USB_INT_DDISCI  = 8,
+				USB_INT_DDISCI  = 9,
-				USB_INT_RSTI    = 9,
+				USB_INT_RSTI    = 10,
-				USB_INT_BCERRI  = 10,
+				USB_INT_BCERRI  = 11,
-				USB_INT_VBERRI  = 11,
+				USB_INT_VBERRI  = 12,
 				#endif
 			};
 		
@@ -106,6 +108,9 @@
 					case USB_INT_SOFI:
 						AVR32_USBB.UDINTESET.sofes    = true;
 						break;
+					case USB_INT_RXSTPI:
+						(&AVR32_USBB.UECON0SET)[USB_SelectedEndpoint].rxstpes = true;
+						break;
 					#endif
 					#if defined(USB_CAN_BE_HOST)
 					case USB_INT_HSOFI:
@@ -156,6 +161,9 @@
 					case USB_INT_SOFI:
 						AVR32_USBB.UDINTECLR.sofec    = true;
 						break;
+					case USB_INT_RXSTPI:
+						(&AVR32_USBB.UECON0CLR)[USB_SelectedEndpoint].rxstpec = true;
+						break;
 					#endif
 					#if defined(USB_CAN_BE_HOST)
 					case USB_INT_HSOFI:
@@ -212,6 +220,9 @@
 						AVR32_USBB.UDINTCLR.sofc     = true;
 						(void)AVR32_USBB.UDINTCLR;
 						break;
+					case USB_INT_RXSTPI:
+						(&AVR32_USBB.UESTA0CLR)[USB_SelectedEndpoint].rxstpic = true;
+						break;
 					#endif
 					#if defined(USB_CAN_BE_HOST)
 					case USB_INT_HSOFI:
@@ -262,6 +273,8 @@
 						return AVR32_USBB.UDINTE.eorste;
 					case USB_INT_SOFI:
 						return AVR32_USBB.UDINTE.sofe;
+					case USB_INT_RXSTPI:
+						return (&AVR32_USBB.UECON0)[USB_SelectedEndpoint].rxstpe;
 					#endif
 					#if defined(USB_CAN_BE_HOST)					
 					case USB_INT_HSOFI:
@@ -302,6 +315,8 @@
 						return AVR32_USBB.UDINT.eorst;
 					case USB_INT_SOFI:
 						return AVR32_USBB.UDINT.sof;
+					case USB_INT_RXSTPI:
+						return (&AVR32_USBB.UESTA0)[USB_SelectedEndpoint].rxstpi;
 					#endif
 					#if defined(USB_CAN_BE_HOST)
 					case USB_INT_HSOFI: