X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/cb779e3d7d32d7c43e0a45bb526de0a04135b0c7..46f2e488b0508d12be63b14213b8e0499eb01fc0:/LUFA/Drivers/USB/LowLevel/Pipe.h

diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.h b/LUFA/Drivers/USB/LowLevel/Pipe.h
index 62d0935dc..0e877f623 100644
--- a/LUFA/Drivers/USB/LowLevel/Pipe.h
+++ b/LUFA/Drivers/USB/LowLevel/Pipe.h
@@ -98,6 +98,8 @@
 
 	/* Public Interface - May be used in end-application: */
 		/* Macros: */
+			/** \name Pipe Error Flag Masks */
+			//@{
 			/** Mask for \ref Pipe_GetErrorFlags(), indicating that an overflow error occurred in the pipe on the received data. */
 			#define PIPE_ERRORFLAG_OVERFLOW         (1 << 6)
 
@@ -118,7 +120,10 @@
 
 			/** Mask for \ref Pipe_GetErrorFlags(), indicating that a hardware data toggle error occurred in the pipe. */
 			#define PIPE_ERRORFLAG_DATATGL          (1 << 0)
+			//@}
 
+			/** \name Pipe Token Masks */
+			//@{
 			/** Token mask for \ref Pipe_ConfigurePipe(). This sets the pipe as a SETUP token (for CONTROL type pipes),
 			 *  which will trigger a control request on the attached device when data is written to the pipe.
 			 */
@@ -133,7 +138,10 @@
 			 *  indicating that the pipe data will flow from host to device.
 			 */
 			#define PIPE_TOKEN_OUT                  (2 << PTOKEN0)
-
+			//@}
+			
+			/** \name Pipe Bank Mode Masks */
+			//@{
 			/** Mask for the bank mode selection for the \ref Pipe_ConfigurePipe() macro. This indicates that the pipe
 			 *  should have one single bank, which requires less USB FIFO memory but results in slower transfers as
 			 *  only one USB device (the AVR or the attached device) can access the pipe's bank at the one time.
@@ -146,7 +154,8 @@
 			 *  bank.
 			 */
 			#define PIPE_BANK_DOUBLE                (1 << EPBK0)
-
+			//@}
+			
 			/** Pipe address for the default control pipe, which always resides in address 0. This is
 			 *  defined for convenience to give more readable code when used with the pipe macros.
 			 */
@@ -443,6 +452,19 @@
 				                   PIPE_ERRORFLAG_DATATGL)) |
 				        (UPSTAX & (PIPE_ERRORFLAG_OVERFLOW | PIPE_ERRORFLAG_UNDERFLOW)));
 			}
+			
+			/** Retrieves the number of busy banks in the currently selected pipe, which have been queued for
+			 *  transmission via the \ref Pipe_ClearOUT() command, or are awaiting acknowledgement via the
+			 *  \ref Pipe_ClearIN() command.
+			 *
+			 *  \ingroup Group_PipePacketManagement
+			 *
+			 *  \return Total number of busy banks in the selected pipe.
+			 */
+			static inline uint8_t Pipe_GetBusyBanks(void)
+			{
+				return (UPSTAX & (0x03 << NBUSYBK0));
+			}
 
 			/** Determines if the currently selected pipe may be read from (if data is waiting in the pipe
 			 *  bank and the pipe is an IN direction, or if the bank is not yet full if the pipe is an OUT