Added new Pipe_GetBusyBanks(), Endpoint_GetBusyBanks() and Endpoint_AbortPendingIN...

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / Endpoint.h

diff --git a/LUFA/Drivers/USB/LowLevel/Endpoint.h b/LUFA/Drivers/USB/LowLevel/Endpoint.h
index e0a45f3..75c8877 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/Endpoint.h
+++ b/LUFA/Drivers/USB/LowLevel/Endpoint.h
@@ -400,6 +400,35 @@
                                return ((UECONX & (1 << EPEN)) ? true : false);
                        }
 
+                       /** Aborts all pending IN transactions on the currently selected endpoint, once the bank
+                        *  has been queued for transmission to the host via \ref Endpoint_ClearIN(). This function
+                        *  will terminate all queued transactions, resetting the endpoint banks ready for a new
+                        *  packet.
+                        *
+                        *  \ingroup Group_EndpointPacketManagement
+                        */
+                       static inline void Endpoint_AbortPendingIN(void)
+                       {
+                               while (UESTA0X & (0x03 << NBUSYBK))
+                               {
+                                       UEINTX |= (1 << RXOUTI);
+                                       while (UEINTX & (1 << RXOUTI));
+                               }
+                       }
+                       
+                       /** Retrieves the number of busy banks in the currently selected endpoint, which have been queued for
+                        *  transmission via the \ref Endpoint_ClearIN() command, or are awaiting acknowledgement via the
+                        *  \ref Endpoint_ClearOUT() command.
+                        *
+                        *  \ingroup Group_EndpointPacketManagement
+                        *
+                        *  \return Total number of busy banks in the selected endpoint.
+                        */
+                       static inline uint8_t Endpoint_GetBusyBanks(void)
+                       {
+                               return (UESTA0X & (0x03 << NBUSYBK));
+                       }
+
                        /** Determines if the currently selected endpoint may be read from (if data is waiting in the endpoint
                         *  bank and the endpoint is an OUT direction, or if the bank is not yet full if the endpoint is an IN
                         *  direction). This function will return false if an error has occurred in the endpoint, if the endpoint