Squashed 'lib/lufa/' content from commit 385d40300

git-subtree-dir: lib/lufa
git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b

1 files changed, 235 insertions, 0 deletions

diff --git a/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c b/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c
new file mode 100644
index 0000000000..04f6e97d65
--- /dev/null
+++ b/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c
@@ -0,0 +1,235 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  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 disclaims 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.
+*/
+
+#include "../../../../Common/Common.h"
+#if (ARCH == ARCH_UC3)
+
+#define  __INCLUDE_FROM_USB_DRIVER
+#include "../USBMode.h"
+
+#if defined(USB_CAN_BE_DEVICE)
+
+#include "EndpointStream_UC3.h"
+
+#if !defined(CONTROL_ONLY_DEVICE)
+uint8_t Endpoint_Discard_Stream(uint16_t Length,
+                                uint16_t* const BytesProcessed)
+{
+	uint8_t  ErrorCode;
+	uint16_t BytesInTransfer = 0;
+
+	if ((ErrorCode = Endpoint_WaitUntilReady()))
+	  return ErrorCode;
+
+	if (BytesProcessed != NULL)
+	  Length -= *BytesProcessed;
+
+	while (Length)
+	{
+		if (!(Endpoint_IsReadWriteAllowed()))
+		{
+			Endpoint_ClearOUT();
+
+			if (BytesProcessed != NULL)
+			{
+				*BytesProcessed += BytesInTransfer;
+				return ENDPOINT_RWSTREAM_IncompleteTransfer;
+			}
+
+			if ((ErrorCode = Endpoint_WaitUntilReady()))
+			  return ErrorCode;
+		}
+		else
+		{
+			Endpoint_Discard_8();
+
+			Length--;
+			BytesInTransfer++;
+		}
+	}
+
+	return ENDPOINT_RWSTREAM_NoError;
+}
+
+uint8_t Endpoint_Null_Stream(uint16_t Length,
+                             uint16_t* const BytesProcessed)
+{
+	uint8_t  ErrorCode;
+	uint16_t BytesInTransfer = 0;
+
+	if ((ErrorCode = Endpoint_WaitUntilReady()))
+	  return ErrorCode;
+
+	if (BytesProcessed != NULL)
+	  Length -= *BytesProcessed;
+
+	while (Length)
+	{
+		if (!(Endpoint_IsReadWriteAllowed()))
+		{
+			Endpoint_ClearIN();
+
+			if (BytesProcessed != NULL)
+			{
+				*BytesProcessed += BytesInTransfer;
+				return ENDPOINT_RWSTREAM_IncompleteTransfer;
+			}
+
+			if ((ErrorCode = Endpoint_WaitUntilReady()))
+			  return ErrorCode;
+		}
+		else
+		{
+			Endpoint_Write_8(0);
+
+			Length--;
+			BytesInTransfer++;
+		}
+	}
+
+	return ENDPOINT_RWSTREAM_NoError;
+}
+
+/* The following abuses the C preprocessor in order to copy-paste 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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(*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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(*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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_8()
+#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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_8()
+#include "Template/Template_Endpoint_RW.c"
+
+#if defined(ARCH_HAS_FLASH_ADDRESS_SPACE)
+	#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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+	#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(pgm_read_byte(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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+	#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(pgm_read_byte(BufferPtr))
+	#include "Template/Template_Endpoint_RW.c"
+#endif
+
+#if defined(ARCH_HAS_EEPROM_ADDRESS_SPACE)
+	#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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+	#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(eeprom_read_byte(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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+	#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(eeprom_read_byte(BufferPtr))
+	#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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+	#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_update_byte(BufferPtr, Endpoint_Read_8())
+	#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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+	#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         eeprom_update_byte(BufferPtr, Endpoint_Read_8())
+	#include "Template/Template_Endpoint_RW.c"
+#endif
+
+#endif
+
+#define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Control_Stream_LE
+#define  TEMPLATE_BUFFER_OFFSET(Length)            0
+#define  TEMPLATE_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(*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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         Endpoint_Write_8(*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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr += Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_8()
+#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_BUFFER_MOVE(BufferPtr, Amount)   BufferPtr -= Amount
+#define  TEMPLATE_TRANSFER_BYTE(BufferPtr)         *BufferPtr = Endpoint_Read_8()
+#include "Template/Template_Endpoint_Control_R.c"
+
+#endif
+
+#endif