X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/c79f6e2586047f66f96089e7f398622ccac80cec..d4b45e8502a27c0f5ad3e26eabd2b30e84c20bac:/LUFA/Drivers/USB/Core/PipeStream.h diff --git a/LUFA/Drivers/USB/Core/PipeStream.h b/LUFA/Drivers/USB/Core/PipeStream.h index c579631dc..8309cbd43 100644 --- a/LUFA/Drivers/USB/Core/PipeStream.h +++ b/LUFA/Drivers/USB/Core/PipeStream.h @@ -1,461 +1,100 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2011. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2011 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. -*/ - -/** \file - * \brief Pipe data stream transmission and reception management. - * \copydetails Group_PipeStreamRW - * - * \note This file should not be included directly. It is automatically included as needed by the USB driver - * dispatch header located in LUFA/Drivers/USB/USB.h. - */ - -/** \ingroup Group_PipeRW - * \defgroup Group_PipeStreamRW Read/Write of Multi-Byte Streams - * \brief Pipe data stream transmission and reception management. - * - * Functions, macros, variables, enums and types related to data reading and writing of data streams from - * and to pipes. - * - * @{ - */ - -#ifndef __PIPE_STREAM_H__ -#define __PIPE_STREAM_H__ - - /* Includes: */ - #include "../../../Common/Common.h" - #include "USBMode.h" - #include "USBTask.h" - - /* Enable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - extern "C" { - #endif - - /* Preprocessor Checks: */ - #if !defined(__INCLUDE_FROM_USB_DRIVER) - #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead. - #endif - - /* Public Interface - May be used in end-application: */ - /* Enums: */ - /** Enum for the possible error return codes of the Pipe_*_Stream_* functions. */ - enum Pipe_Stream_RW_ErrorCodes_t - { - PIPE_RWSTREAM_NoError = 0, /**< Command completed successfully, no error. */ - PIPE_RWSTREAM_PipeStalled = 1, /**< The device stalled the pipe during the transfer. */ - PIPE_RWSTREAM_DeviceDisconnected = 2, /**< Device was disconnected from the host during - * the transfer. - */ - PIPE_RWSTREAM_Timeout = 3, /**< The device failed to accept or send the next packet - * within the software timeout period set by the - * \ref USB_STREAM_TIMEOUT_MS macro. - */ - PIPE_RWSTREAM_IncompleteTransfer = 4, /**< Indicates that the pipe bank became full/empty before the - * complete contents of the stream could be transferred. - */ - }; - - /* Function Prototypes: */ - - /** \name Stream functions for null data */ - //@{ - - /** Reads and discards the given number of bytes from the pipe, discarding fully read packets from the host - * as needed. The last packet is not automatically discarded once the remaining bytes has been read; the - * user is responsible for manually discarding the last packet from the device via the \ref Pipe_ClearIN() macro. - * - * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once, failing or - * succeeding as a single unit. If the BytesProcessed parameter points to a valid storage location, the transfer - * will instead be performed as a series of chunks. Each time the pipe bank becomes empty while there is still data - * to process (and after the current packet has been acknowledged) the BytesProcessed location will be updated with - * the total number of bytes processed in the stream, and the function will exit with an error code of - * \ref PIPE_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed in the user code - to - * continue the transfer, call the function again with identical parameters and it will resume until the BytesProcessed - * value reaches the total transfer length. - * - * Single Stream Transfer Example: - * \code - * uint8_t ErrorCode; - * - * if ((ErrorCode = Pipe_Discard_Stream(512, NULL)) != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * Partial Stream Transfers Example: - * \code - * uint8_t ErrorCode; - * uint16_t BytesProcessed; - * - * BytesProcessed = 0; - * while ((ErrorCode = Pipe_Discard_Stream(512, &BytesProcessed)) == PIPE_RWSTREAM_IncompleteTransfer) - * { - * // Stream not yet complete - do other actions here, abort if required - * } - * - * if (ErrorCode != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * \note The pipe token is set automatically, thus this can be used on bi-directional pipes directly without - * having to explicitly change the data direction with a call to \ref Pipe_SetPipeToken(). - * - * \param[in] Length Number of bytes to discard via the currently selected pipe. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be processed at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Discard_Stream(uint16_t Length, - uint16_t* const BytesProcessed); - - /** Writes a given number of zeroed bytes to the pipe, sending full pipe packets from the host to the device - * as needed. The last packet is not automatically sent once the remaining bytes has been written; the - * user is responsible for manually discarding the last packet from the device via the \ref Pipe_ClearOUT() macro. - * - * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once, failing or - * succeeding as a single unit. If the BytesProcessed parameter points to a valid storage location, the transfer - * will instead be performed as a series of chunks. Each time the pipe bank becomes full while there is still data - * to process (and after the current packet transmission has been initiated) the BytesProcessed location will be - * updated with the total number of bytes processed in the stream, and the function will exit with an error code of - * \ref PIPE_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed in the user code - to - * continue the transfer, call the function again with identical parameters and it will resume until the BytesProcessed - * value reaches the total transfer length. - * - * Single Stream Transfer Example: - * \code - * uint8_t ErrorCode; - * - * if ((ErrorCode = Pipe_Null_Stream(512, NULL)) != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * Partial Stream Transfers Example: - * \code - * uint8_t ErrorCode; - * uint16_t BytesProcessed; - * - * BytesProcessed = 0; - * while ((ErrorCode = Pipe_Null_Stream(512, &BytesProcessed)) == PIPE_RWSTREAM_IncompleteTransfer) - * { - * // Stream not yet complete - do other actions here, abort if required - * } - * - * if (ErrorCode != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * \note The pipe token is set automatically, thus this can be used on bi-directional pipes directly without - * having to explicitly change the data direction with a call to \ref Pipe_SetPipeToken(). - * - * \param[in] Length Number of zero bytes to write via the currently selected pipe. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be processed at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Null_Stream(uint16_t Length, - uint16_t* const BytesProcessed); - - //@} - - /** \name Stream functions for RAM source/destination data */ - //@{ - - /** Writes the given number of bytes to the pipe from the given buffer in little endian, - * sending full packets to the device as needed. The last packet filled is not automatically sent; - * the user is responsible for manually sending the last written packet to the host via the - * \ref Pipe_ClearOUT() macro. Between each USB packet, the given stream callback function is - * executed repeatedly until the next packet is ready, allowing for early aborts of stream transfers. - * - * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once, - * failing or succeeding as a single unit. If the BytesProcessed parameter points to a valid - * storage location, the transfer will instead be performed as a series of chunks. Each time - * the pipe bank becomes full while there is still data to process (and after the current - * packet transmission has been initiated) the BytesProcessed location will be updated with the - * total number of bytes processed in the stream, and the function will exit with an error code of - * \ref PIPE_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed - * in the user code - to continue the transfer, call the function again with identical parameters - * and it will resume until the BytesProcessed value reaches the total transfer length. - * - * Single Stream Transfer Example: - * \code - * uint8_t DataStream[512]; - * uint8_t ErrorCode; - * - * if ((ErrorCode = Pipe_Write_Stream_LE(DataStream, sizeof(DataStream), - * NULL)) != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * Partial Stream Transfers Example: - * \code - * uint8_t DataStream[512]; - * uint8_t ErrorCode; - * uint16_t BytesProcessed; - * - * BytesProcessed = 0; - * while ((ErrorCode = Pipe_Write_Stream_LE(DataStream, sizeof(DataStream), - * &BytesProcessed)) == PIPE_RWSTREAM_IncompleteTransfer) - * { - * // Stream not yet complete - do other actions here, abort if required - * } - * - * if (ErrorCode != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * \note The pipe token is set automatically, thus this can be used on bi-directional pipes directly without - * having to explicitly change the data direction with a call to \ref Pipe_SetPipeToken(). - * - * \param[in] Buffer Pointer to the source data buffer to read from. - * \param[in] Length Number of bytes to read for the currently selected pipe into the buffer. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be written at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Write_Stream_LE(const void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** Writes the given number of bytes to the pipe from the given buffer in big endian, - * sending full packets to the device as needed. The last packet filled is not automatically sent; - * the user is responsible for manually sending the last written packet to the host via the - * \ref Pipe_ClearOUT() macro. Between each USB packet, the given stream callback function is - * executed repeatedly until the next packet is ready, allowing for early aborts of stream transfers. - * - * \note The pipe token is set automatically, thus this can be used on bi-directional pipes directly without - * having to explicitly change the data direction with a call to \ref Pipe_SetPipeToken(). - * - * \param[in] Buffer Pointer to the source data buffer to read from. - * \param[in] Length Number of bytes to read for the currently selected pipe into the buffer. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be written at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Write_Stream_BE(const void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** Reads the given number of bytes from the pipe into the given buffer in little endian, - * sending full packets to the device as needed. The last packet filled is not automatically sent; - * the user is responsible for manually sending the last written packet to the host via the - * \ref Pipe_ClearIN() macro. Between each USB packet, the given stream callback function is - * executed repeatedly until the next packet is ready, allowing for early aborts of stream transfers. - * - * If the BytesProcessed parameter is \c NULL, the entire stream transfer is attempted at once, - * failing or succeeding as a single unit. If the BytesProcessed parameter points to a valid - * storage location, the transfer will instead be performed as a series of chunks. Each time - * the pipe bank becomes empty while there is still data to process (and after the current - * packet has been acknowledged) the BytesProcessed location will be updated with the total number - * of bytes processed in the stream, and the function will exit with an error code of - * \ref PIPE_RWSTREAM_IncompleteTransfer. This allows for any abort checking to be performed - * in the user code - to continue the transfer, call the function again with identical parameters - * and it will resume until the BytesProcessed value reaches the total transfer length. - * - * Single Stream Transfer Example: - * \code - * uint8_t DataStream[512]; - * uint8_t ErrorCode; - * - * if ((ErrorCode = Pipe_Read_Stream_LE(DataStream, sizeof(DataStream), - * NULL)) != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * Partial Stream Transfers Example: - * \code - * uint8_t DataStream[512]; - * uint8_t ErrorCode; - * uint16_t BytesProcessed; - * - * BytesProcessed = 0; - * while ((ErrorCode = Pipe_Read_Stream_LE(DataStream, sizeof(DataStream), - * &BytesProcessed)) == PIPE_RWSTREAM_IncompleteTransfer) - * { - * // Stream not yet complete - do other actions here, abort if required - * } - * - * if (ErrorCode != PIPE_RWSTREAM_NoError) - * { - * // Stream failed to complete - check ErrorCode here - * } - * \endcode - * - * \note The pipe token is set automatically, thus this can be used on bi-directional pipes directly without - * having to explicitly change the data direction with a call to \ref Pipe_SetPipeToken(). - * - * \param[out] Buffer Pointer to the source data buffer to write to. - * \param[in] Length Number of bytes to read for the currently selected pipe to read from. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be read at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Read_Stream_LE(void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** Reads the given number of bytes from the pipe into the given buffer in big endian, - * sending full packets to the device as needed. The last packet filled is not automatically sent; - * the user is responsible for manually sending the last written packet to the host via the - * \ref Pipe_ClearIN() macro. Between each USB packet, the given stream callback function is - * executed repeatedly until the next packet is ready, allowing for early aborts of stream transfers. - * - * \note The pipe token is set automatically, thus this can be used on bi-directional pipes directly without - * having to explicitly change the data direction with a call to \ref Pipe_SetPipeToken(). - * - * \param[out] Buffer Pointer to the source data buffer to write to. - * \param[in] Length Number of bytes to read for the currently selected pipe to read from. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be read at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Read_Stream_BE(void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - //@} - - /** \name Stream functions for EEPROM source/destination data */ - //@{ - - /** EEPROM buffer source version of \ref Pipe_Write_Stream_LE(). - * - * \param[in] Buffer Pointer to the source data buffer to read from. - * \param[in] Length Number of bytes to read for the currently selected pipe into the buffer. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be written at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Write_EStream_LE(const void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** EEPROM buffer source version of \ref Pipe_Write_Stream_BE(). - * - * \param[in] Buffer Pointer to the source data buffer to read from. - * \param[in] Length Number of bytes to read for the currently selected pipe into the buffer. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be written at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Write_EStream_BE(const void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** EEPROM buffer source version of \ref Pipe_Read_Stream_LE(). - * - * \param[out] Buffer Pointer to the source data buffer to write to. - * \param[in] Length Number of bytes to read for the currently selected pipe to read from. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be read at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Read_EStream_LE(void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** EEPROM buffer source version of \ref Pipe_Read_Stream_BE(). - * - * \param[out] Buffer Pointer to the source data buffer to write to. - * \param[in] Length Number of bytes to read for the currently selected pipe to read from. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be read at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Read_EStream_BE(void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - //@} - - /** \name Stream functions for PROGMEM source/destination data */ - //@{ - - /** FLASH buffer source version of \ref Pipe_Write_Stream_LE(). - * - * \pre The FLASH data must be located in the first 64KB of FLASH for this function to work correctly. - * - * \param[in] Buffer Pointer to the source data buffer to read from. - * \param[in] Length Number of bytes to read for the currently selected pipe into the buffer. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be written at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Write_PStream_LE(const void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - - /** FLASH buffer source version of \ref Pipe_Write_Stream_BE(). - * - * \pre The FLASH data must be located in the first 64KB of FLASH for this function to work correctly. - * - * \param[in] Buffer Pointer to the source data buffer to read from. - * \param[in] Length Number of bytes to read for the currently selected pipe into the buffer. - * \param[in] BytesProcessed Pointer to a location where the total number of bytes already processed should - * updated, \c NULL if the entire stream should be written at once. - * - * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. - */ - uint8_t Pipe_Write_PStream_BE(const void* const Buffer, - uint16_t Length, - uint16_t* const BytesProcessed) ATTR_NON_NULL_PTR_ARG(1); - //@} - - /* Disable C linkage for C++ Compilers: */ - #if defined(__cplusplus) - } - #endif - -#endif - -/** @} */ +/* + LUFA Library + Copyright (C) Dean Camera, 2012. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2012 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. +*/ + +/** \file + * \brief Pipe data stream transmission and reception management. + * \copydetails Group_PipeStreamRW + * + * \note This file should not be included directly. It is automatically included as needed by the USB driver + * dispatch header located in LUFA/Drivers/USB/USB.h. + */ + +/** \ingroup Group_PipeRW + * \defgroup Group_PipeStreamRW Read/Write of Multi-Byte Streams + * \brief Pipe data stream transmission and reception management. + * + * Functions, macros, variables, enums and types related to data reading and writing of data streams from + * and to pipes. + * + * @{ + */ + +#ifndef __PIPE_STREAM_H__ +#define __PIPE_STREAM_H__ + + /* Includes: */ + #include "../../../Common/Common.h" + #include "USBMode.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_USB_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead. + #endif + + /* Public Interface - May be used in end-application: */ + /* Enums: */ + /** Enum for the possible error return codes of the Pipe_*_Stream_* functions. */ + enum Pipe_Stream_RW_ErrorCodes_t + { + PIPE_RWSTREAM_NoError = 0, /**< Command completed successfully, no error. */ + PIPE_RWSTREAM_PipeStalled = 1, /**< The device stalled the pipe during the transfer. */ + PIPE_RWSTREAM_DeviceDisconnected = 2, /**< Device was disconnected from the host during + * the transfer. + */ + PIPE_RWSTREAM_Timeout = 3, /**< The device failed to accept or send the next packet + * within the software timeout period set by the + * \ref USB_STREAM_TIMEOUT_MS macro. + */ + PIPE_RWSTREAM_IncompleteTransfer = 4, /**< Indicates that the pipe bank became full/empty before the + * complete contents of the stream could be transferred. + */ + }; + + /* Architecture Includes: */ + #if (ARCH == ARCH_AVR8) + #include "AVR8/PipeStream_AVR8.h" + #elif (ARCH == ARCH_UC3) + #include "UC3/PipeStream_UC3.h" + #endif + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */