X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/4cc7f5200beef90c39c8c8310ed7c8b849afb4d9..e72f424f6450cf67d3ef57d347a4f8d86ec5a119:/LUFA/Drivers/USB/HighLevel/Template/Template_Endpoint_RW.c

diff --git a/LUFA/Drivers/USB/HighLevel/Template/Template_Endpoint_RW.c b/LUFA/Drivers/USB/HighLevel/Template/Template_Endpoint_RW.c
new file mode 100644
index 000000000..fc9df951d
--- /dev/null
+++ b/LUFA/Drivers/USB/HighLevel/Template/Template_Endpoint_RW.c
@@ -0,0 +1,79 @@
+uint8_t TEMPLATE_FUNC_NAME (TEMPLATE_BUFFER_TYPE Buffer,
+                            uint16_t Length
+                            __CALLBACK_PARAM)
+{
+	uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
+	uint8_t  ErrorCode;
+	
+	if ((ErrorCode = Endpoint_WaitUntilReady()))
+	  return ErrorCode;
+
+	#if defined(FAST_STREAM_TRANSFERS)
+	uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);
+
+	if (Length >= 8)
+	{
+		Length -= BytesRemToAlignment;
+
+		switch (BytesRemToAlignment)
+		{
+			default:
+				do
+				{
+					if (!(Endpoint_IsReadWriteAllowed()))
+					{
+						TEMPLATE_CLEAR_ENDPOINT();
+
+						#if !defined(NO_STREAM_CALLBACKS)
+						if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+						  return ENDPOINT_RWSTREAM_CallbackAborted;
+						#endif
+
+						if ((ErrorCode = Endpoint_WaitUntilReady()))
+						  return ErrorCode;
+					}
+
+					Length -= 8;
+					
+					TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 7: TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 6: TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 5: TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 4: TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 3: TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 2: TEMPLATE_TRANSFER_BYTE(DataStream);
+			case 1:	TEMPLATE_TRANSFER_BYTE(DataStream);
+				} while (Length >= 8);	
+		}
+	}
+	#endif
+
+	while (Length)
+	{
+		if (!(Endpoint_IsReadWriteAllowed()))
+		{
+			TEMPLATE_CLEAR_ENDPOINT();
+
+			#if !defined(NO_STREAM_CALLBACKS)
+			if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+			  return ENDPOINT_RWSTREAM_CallbackAborted;
+			#endif
+
+			if ((ErrorCode = Endpoint_WaitUntilReady()))
+			  return ErrorCode;
+		}
+		else
+		{
+			TEMPLATE_TRANSFER_BYTE(DataStream);
+			Length--;
+		}
+	}
+
+	return ENDPOINT_RWSTREAM_NoError;
+}
+
+#undef TEMPLATE_FUNC_NAME
+#undef TEMPLATE_BUFFER_TYPE
+#undef TEMPLATE_TRANSFER_BYTE
+#undef TEMPLATE_CLEAR_ENDPOINT
+#undef TEMPLATE_BUFFER_OFFSET
\ No newline at end of file