Add svn:eol-style property to source files, so that the line endings are correctly...
[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / Endpoint.c
index 5560c80..c704ac7 100644 (file)
-/*\r
-             LUFA Library\r
-     Copyright (C) Dean Camera, 2010.\r
-              \r
-  dean [at] fourwalledcubicle [dot] com\r
-      www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, distribute, and sell this \r
-  software and its documentation for any purpose is hereby granted\r
-  without fee, provided that the above copyright notice appear in \r
-  all copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting \r
-  documentation, and that the name of the author not be used in \r
-  advertising or publicity pertaining to distribution of the \r
-  software without specific, written prior permission.\r
-\r
-  The author disclaim all warranties with regard to this\r
-  software, including all implied warranties of merchantability\r
-  and fitness.  In no event shall the author be liable for any\r
-  special, indirect or consequential damages or any damages\r
-  whatsoever resulting from loss of use, data or profits, whether\r
-  in an action of contract, negligence or other tortious action,\r
-  arising out of or in connection with the use or performance of\r
-  this software.\r
-*/\r
-\r
-#define  __INCLUDE_FROM_USB_DRIVER\r
-#include "../HighLevel/USBMode.h"\r
-\r
-#if defined(USB_CAN_BE_DEVICE)\r
-\r
-#define  __INCLUDE_FROM_ENDPOINT_C\r
-#include "Endpoint.h"\r
-\r
-#if !defined(FIXED_CONTROL_ENDPOINT_SIZE)\r
-uint8_t USB_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE;\r
-#endif\r
-\r
-uint8_t Endpoint_BytesToEPSizeMaskDynamic(const uint16_t Size)\r
-{\r
-       return Endpoint_BytesToEPSizeMask(Size);\r
-}\r
-\r
-bool Endpoint_ConfigureEndpoint_Prv(const uint8_t Number, const uint8_t UECFG0XData, const uint8_t UECFG1XData)\r
-{\r
-       Endpoint_SelectEndpoint(Number);\r
-       Endpoint_EnableEndpoint();\r
-\r
-       UECFG1X = 0;\r
-\r
-       UECFG0X = UECFG0XData;\r
-       UECFG1X = UECFG1XData;\r
-\r
-       return Endpoint_IsConfigured();\r
-}\r
-\r
-void Endpoint_ClearEndpoints(void)\r
-{\r
-       UEINT = 0;\r
-\r
-       for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)\r
-       {\r
-               Endpoint_SelectEndpoint(EPNum); \r
-               UEIENX = 0;\r
-               UEINTX = 0;\r
-               Endpoint_DeallocateMemory();\r
-               Endpoint_DisableEndpoint();\r
-       }\r
-}\r
-\r
-void Endpoint_ClearStatusStage(void)\r
-{\r
-       if (USB_ControlRequest.bmRequestType & REQDIR_DEVICETOHOST)\r
-       {\r
-               while (!(Endpoint_IsOUTReceived()))\r
-               {\r
-                       if (USB_DeviceState == DEVICE_STATE_Unattached)\r
-                         return;\r
-               }\r
-\r
-               Endpoint_ClearOUT();\r
-       }\r
-       else\r
-       {\r
-               while (!(Endpoint_IsINReady()))\r
-               {\r
-                       if (USB_DeviceState == DEVICE_STATE_Unattached)\r
-                         return;\r
-               }\r
-               \r
-               Endpoint_ClearIN();\r
-       }\r
-}\r
-\r
-#if !defined(CONTROL_ONLY_DEVICE)\r
-uint8_t Endpoint_WaitUntilReady(void)\r
-{\r
-       #if (USB_STREAM_TIMEOUT_MS < 0xFF)\r
-       uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;  \r
-       #else\r
-       uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;\r
-       #endif\r
-\r
-       for (;;)\r
-       {\r
-               if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN)\r
-               {\r
-                       if (Endpoint_IsINReady())\r
-                         return ENDPOINT_READYWAIT_NoError;\r
-               }\r
-               else\r
-               {\r
-                       if (Endpoint_IsOUTReceived())\r
-                         return ENDPOINT_READYWAIT_NoError;            \r
-               }\r
-               \r
-               if (USB_DeviceState == DEVICE_STATE_Unattached)\r
-                 return ENDPOINT_READYWAIT_DeviceDisconnected;\r
-               else if (USB_DeviceState == DEVICE_STATE_Suspended)\r
-                 return ENDPOINT_READYWAIT_BusSuspended;\r
-               else if (Endpoint_IsStalled())\r
-                 return ENDPOINT_READYWAIT_EndpointStalled;\r
-                         \r
-               if (USB_INT_HasOccurred(USB_INT_SOFI))\r
-               {\r
-                       USB_INT_Clear(USB_INT_SOFI);\r
-\r
-                       if (!(TimeoutMSRem--))\r
-                         return ENDPOINT_READYWAIT_Timeout;\r
-               }\r
-       }\r
-}\r
-\r
-uint8_t Endpoint_Discard_Stream(uint16_t Length\r
-#if !defined(NO_STREAM_CALLBACKS)\r
-                                , StreamCallbackPtr_t Callback\r
-#endif\r
-                                                               )\r
-{\r
-       uint8_t  ErrorCode;\r
-       \r
-       if ((ErrorCode = Endpoint_WaitUntilReady()))\r
-         return ErrorCode;\r
-\r
-       #if defined(FAST_STREAM_TRANSFERS)\r
-       uint8_t BytesRemToAlignment = (Endpoint_BytesInEndpoint() & 0x07);\r
-\r
-       if (Length >= 8)\r
-       {\r
-               Length -= BytesRemToAlignment;\r
-\r
-               switch (BytesRemToAlignment)\r
-               {\r
-                       default:\r
-                               do\r
-                               {\r
-                                       if (!(Endpoint_IsReadWriteAllowed()))\r
-                                       {\r
-                                               Endpoint_ClearOUT();\r
-\r
-                                               #if !defined(NO_STREAM_CALLBACKS)\r
-                                               if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))\r
-                                                 return ENDPOINT_RWSTREAM_CallbackAborted;\r
-                                               #endif\r
-\r
-                                               if ((ErrorCode = Endpoint_WaitUntilReady()))\r
-                                                 return ErrorCode;\r
-                                       }\r
-\r
-                                       Length -= 8;\r
-                                       \r
-                                       Endpoint_Discard_Byte();\r
-                       case 7: Endpoint_Discard_Byte();\r
-                       case 6: Endpoint_Discard_Byte();\r
-                       case 5: Endpoint_Discard_Byte();\r
-                       case 4: Endpoint_Discard_Byte();\r
-                       case 3: Endpoint_Discard_Byte();\r
-                       case 2: Endpoint_Discard_Byte();\r
-                       case 1: Endpoint_Discard_Byte();\r
-                               } while (Length >= 8);  \r
-               }\r
-       }\r
-       #endif\r
-\r
-       while (Length)\r
-       {\r
-               if (!(Endpoint_IsReadWriteAllowed()))\r
-               {\r
-                       Endpoint_ClearOUT();\r
-\r
-                       #if !defined(NO_STREAM_CALLBACKS)\r
-                       if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))\r
-                         return ENDPOINT_RWSTREAM_CallbackAborted;\r
-                       #endif\r
-\r
-                       if ((ErrorCode = Endpoint_WaitUntilReady()))\r
-                         return ErrorCode;\r
-               }\r
-               else\r
-               {\r
-                       Endpoint_Discard_Byte();\r
-                       Length--;\r
-               }\r
-       }\r
-       \r
-       return ENDPOINT_RWSTREAM_NoError;\r
-}\r
-\r
-/* The following abuses the C preprocessor in order to copy-past common code with slight alterations,\r
- * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_LE\r
-#define  TEMPLATE_BUFFER_TYPE                      const void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr++))\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_PStream_LE\r
-#define  TEMPLATE_BUFFER_TYPE                      const void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr++))\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_EStream_LE\r
-#define  TEMPLATE_BUFFER_TYPE                      const void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr++))\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_BE\r
-#define  TEMPLATE_BUFFER_TYPE                      const void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr--))\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_EStream_BE\r
-#define  TEMPLATE_BUFFER_TYPE                      const void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr--))\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_PStream_BE\r
-#define  TEMPLATE_BUFFER_TYPE                      const void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr--))\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Stream_LE\r
-#define  TEMPLATE_BUFFER_TYPE                      void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr++) = Endpoint_Read_Byte()\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_EStream_LE\r
-#define  TEMPLATE_BUFFER_TYPE                      void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Stream_BE\r
-#define  TEMPLATE_BUFFER_TYPE                      void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr--) = Endpoint_Read_Byte()\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_EStream_BE\r
-#define  TEMPLATE_BUFFER_TYPE                      void*\r
-#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())\r
-#include "Template/Template_Endpoint_RW.c"\r
-\r
-#endif\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_LE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr++))\r
-#include "Template/Template_Endpoint_Control_W.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_PStream_LE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr++))\r
-#include "Template/Template_Endpoint_Control_W.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_EStream_LE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr++))\r
-#include "Template/Template_Endpoint_Control_W.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_BE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr--))\r
-#include "Template/Template_Endpoint_Control_W.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_PStream_BE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr--))\r
-#include "Template/Template_Endpoint_Control_W.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_EStream_BE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr--))\r
-#include "Template/Template_Endpoint_Control_W.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_Stream_LE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr++) = Endpoint_Read_Byte()\r
-#include "Template/Template_Endpoint_Control_R.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_EStream_LE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            0\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())\r
-#include "Template/Template_Endpoint_Control_R.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_Stream_BE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr--) = Endpoint_Read_Byte()\r
-#include "Template/Template_Endpoint_Control_R.c"\r
-\r
-#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_EStream_BE\r
-#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)\r
-#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())\r
-#include "Template/Template_Endpoint_Control_R.c"\r
-\r
-#endif\r
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2010.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+#define  __INCLUDE_FROM_USB_DRIVER
+#include "../HighLevel/USBMode.h"
+
+#if defined(USB_CAN_BE_DEVICE)
+
+#define  __INCLUDE_FROM_ENDPOINT_C
+#include "Endpoint.h"
+
+#if !defined(FIXED_CONTROL_ENDPOINT_SIZE)
+uint8_t USB_ControlEndpointSize = ENDPOINT_CONTROLEP_DEFAULT_SIZE;
+#endif
+
+uint8_t Endpoint_BytesToEPSizeMaskDynamic(const uint16_t Size)
+{
+       return Endpoint_BytesToEPSizeMask(Size);
+}
+
+bool Endpoint_ConfigureEndpoint_Prv(const uint8_t Number, const uint8_t UECFG0XData, const uint8_t UECFG1XData)
+{
+       Endpoint_SelectEndpoint(Number);
+       Endpoint_EnableEndpoint();
+
+       UECFG1X = 0;
+
+       UECFG0X = UECFG0XData;
+       UECFG1X = UECFG1XData;
+
+       return Endpoint_IsConfigured();
+}
+
+void Endpoint_ClearEndpoints(void)
+{
+       UEINT = 0;
+
+       for (uint8_t EPNum = 0; EPNum < ENDPOINT_TOTAL_ENDPOINTS; EPNum++)
+       {
+               Endpoint_SelectEndpoint(EPNum); 
+               UEIENX = 0;
+               UEINTX = 0;
+               Endpoint_DeallocateMemory();
+               Endpoint_DisableEndpoint();
+       }
+}
+
+void Endpoint_ClearStatusStage(void)
+{
+       if (USB_ControlRequest.bmRequestType & REQDIR_DEVICETOHOST)
+       {
+               while (!(Endpoint_IsOUTReceived()))
+               {
+                       if (USB_DeviceState == DEVICE_STATE_Unattached)
+                         return;
+               }
+
+               Endpoint_ClearOUT();
+       }
+       else
+       {
+               while (!(Endpoint_IsINReady()))
+               {
+                       if (USB_DeviceState == DEVICE_STATE_Unattached)
+                         return;
+               }
+               
+               Endpoint_ClearIN();
+       }
+}
+
+#if !defined(CONTROL_ONLY_DEVICE)
+uint8_t Endpoint_WaitUntilReady(void)
+{
+       #if (USB_STREAM_TIMEOUT_MS < 0xFF)
+       uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;  
+       #else
+       uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
+       #endif
+
+       for (;;)
+       {
+               if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN)
+               {
+                       if (Endpoint_IsINReady())
+                         return ENDPOINT_READYWAIT_NoError;
+               }
+               else
+               {
+                       if (Endpoint_IsOUTReceived())
+                         return ENDPOINT_READYWAIT_NoError;            
+               }
+               
+               if (USB_DeviceState == DEVICE_STATE_Unattached)
+                 return ENDPOINT_READYWAIT_DeviceDisconnected;
+               else if (USB_DeviceState == DEVICE_STATE_Suspended)
+                 return ENDPOINT_READYWAIT_BusSuspended;
+               else if (Endpoint_IsStalled())
+                 return ENDPOINT_READYWAIT_EndpointStalled;
+                         
+               if (USB_INT_HasOccurred(USB_INT_SOFI))
+               {
+                       USB_INT_Clear(USB_INT_SOFI);
+
+                       if (!(TimeoutMSRem--))
+                         return ENDPOINT_READYWAIT_Timeout;
+               }
+       }
+}
+
+uint8_t Endpoint_Discard_Stream(uint16_t Length
+#if !defined(NO_STREAM_CALLBACKS)
+                                , StreamCallbackPtr_t Callback
+#endif
+                                                               )
+{
+       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()))
+                                       {
+                                               Endpoint_ClearOUT();
+
+                                               #if !defined(NO_STREAM_CALLBACKS)
+                                               if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+                                                 return ENDPOINT_RWSTREAM_CallbackAborted;
+                                               #endif
+
+                                               if ((ErrorCode = Endpoint_WaitUntilReady()))
+                                                 return ErrorCode;
+                                       }
+
+                                       Length -= 8;
+                                       
+                                       Endpoint_Discard_Byte();
+                       case 7: Endpoint_Discard_Byte();
+                       case 6: Endpoint_Discard_Byte();
+                       case 5: Endpoint_Discard_Byte();
+                       case 4: Endpoint_Discard_Byte();
+                       case 3: Endpoint_Discard_Byte();
+                       case 2: Endpoint_Discard_Byte();
+                       case 1: Endpoint_Discard_Byte();
+                               } while (Length >= 8);  
+               }
+       }
+       #endif
+
+       while (Length)
+       {
+               if (!(Endpoint_IsReadWriteAllowed()))
+               {
+                       Endpoint_ClearOUT();
+
+                       #if !defined(NO_STREAM_CALLBACKS)
+                       if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+                         return ENDPOINT_RWSTREAM_CallbackAborted;
+                       #endif
+
+                       if ((ErrorCode = Endpoint_WaitUntilReady()))
+                         return ErrorCode;
+               }
+               else
+               {
+                       Endpoint_Discard_Byte();
+                       Length--;
+               }
+       }
+       
+       return ENDPOINT_RWSTREAM_NoError;
+}
+
+/* The following abuses the C preprocessor in order to copy-past common code with slight alterations,
+ * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_LE
+#define  TEMPLATE_BUFFER_TYPE                      const void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr++))
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_PStream_LE
+#define  TEMPLATE_BUFFER_TYPE                      const void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr++))
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_EStream_LE
+#define  TEMPLATE_BUFFER_TYPE                      const void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr++))
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_BE
+#define  TEMPLATE_BUFFER_TYPE                      const void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr--))
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_EStream_BE
+#define  TEMPLATE_BUFFER_TYPE                      const void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr--))
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_PStream_BE
+#define  TEMPLATE_BUFFER_TYPE                      const void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr--))
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Stream_LE
+#define  TEMPLATE_BUFFER_TYPE                      void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr++) = Endpoint_Read_Byte()
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_EStream_LE
+#define  TEMPLATE_BUFFER_TYPE                      void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Stream_BE
+#define  TEMPLATE_BUFFER_TYPE                      void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr--) = Endpoint_Read_Byte()
+#include "Template/Template_Endpoint_RW.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_EStream_BE
+#define  TEMPLATE_BUFFER_TYPE                      void*
+#define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearOUT()
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())
+#include "Template/Template_Endpoint_RW.c"
+
+#endif
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_LE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr++))
+#include "Template/Template_Endpoint_Control_W.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_PStream_LE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr++))
+#include "Template/Template_Endpoint_Control_W.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_EStream_LE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr++))
+#include "Template/Template_Endpoint_Control_W.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_BE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(*((uint8_t*)BufferPtr--))
+#include "Template/Template_Endpoint_Control_W.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_PStream_BE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(pgm_read_byte((uint8_t*)BufferPtr--))
+#include "Template/Template_Endpoint_Control_W.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_EStream_BE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)BufferPtr--))
+#include "Template/Template_Endpoint_Control_W.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_Stream_LE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr++) = Endpoint_Read_Byte()
+#include "Template/Template_Endpoint_Control_R.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_EStream_LE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr++, Endpoint_Read_Byte())
+#include "Template/Template_Endpoint_Control_R.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_Stream_BE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *((uint8_t*)BufferPtr--) = Endpoint_Read_Byte()
+#include "Template/Template_Endpoint_Control_R.c"
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Read_Control_EStream_BE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            (Length - 1)
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_write_byte((uint8_t*)BufferPtr--, Endpoint_Read_Byte())
+#include "Template/Template_Endpoint_Control_R.c"
+
+#endif