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- /*
- LUFA Library
- Copyright (C) Dean Camera, 2014.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
- */
-
- /*
- Copyright 2014 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_AVR8)
-
- #define __INCLUDE_FROM_USB_DRIVER
- #include "../USBMode.h"
-
- #if defined(USB_CAN_BE_DEVICE)
-
- #include "EndpointStream_AVR8.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"
-
- #if defined(ARCH_HAS_FLASH_ADDRESS_SPACE)
- #define TEMPLATE_FUNC_NAME Endpoint_Write_Control_PStream_LE
- #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_Control_W.c"
-
- #define TEMPLATE_FUNC_NAME Endpoint_Write_Control_PStream_BE
- #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_Control_W.c"
- #endif
-
- #if defined(ARCH_HAS_EEPROM_ADDRESS_SPACE)
- #define TEMPLATE_FUNC_NAME Endpoint_Write_Control_EStream_LE
- #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_Control_W.c"
-
- #define TEMPLATE_FUNC_NAME Endpoint_Write_Control_EStream_BE
- #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_Control_W.c"
-
- #define TEMPLATE_FUNC_NAME Endpoint_Read_Control_EStream_LE
- #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_Control_R.c"
-
- #define TEMPLATE_FUNC_NAME Endpoint_Read_Control_EStream_BE
- #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_Control_R.c"
- #endif
-
- #endif
-
- #endif
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