Fix the LUFA lib to use a submodule instead of just files (#6245)

* Remove LUFA files

* Update descriptions for newer version of LUFA

* Create PR6245.md

* Fix CDC(Serial) type errors

* Fix missed merge conflict for AUDIO_DTYPE_CSInterface

1 files changed, 0 insertions, 308 deletions

diff --git a/lib/lufa/LUFA/Drivers/Misc/RingBuffer.h b/lib/lufa/LUFA/Drivers/Misc/RingBuffer.h
deleted file mode 100644
index 0e76a0779a..0000000000
--- a/lib/lufa/LUFA/Drivers/Misc/RingBuffer.h
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
-             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.
-*/
-
-/** \file
- *  \brief Lightweight ring (circular) buffer, for fast insertion/deletion of bytes.
- *
- *  Lightweight ring buffer, for fast insertion/deletion. Multiple buffers can be created of
- *  different sizes to suit different needs.
- *
- *  Note that for each buffer, insertion and removal operations may occur at the same time (via
- *  a multi-threaded ISR based system) however the same kind of operation (two or more insertions
- *  or deletions) must not overlap. If there is possibility of two or more of the same kind of
- *  operating occurring at the same point in time, atomic (mutex) locking should be used.
- */
-
-/** \ingroup Group_MiscDrivers
- *  \defgroup Group_RingBuff Generic Byte Ring Buffer - LUFA/Drivers/Misc/RingBuffer.h
- *  \brief Lightweight ring buffer, for fast insertion/deletion of bytes.
- *
- *  \section Sec_RingBuff_Dependencies Module Source Dependencies
- *  The following files must be built with any user project that uses this module:
- *    - None
- *
- *  \section Sec_RingBuff_ModDescription Module Description
- *  Lightweight ring buffer, for fast insertion/deletion. Multiple buffers can be created of
- *  different sizes to suit different needs.
- *
- *  Note that for each buffer, insertion and removal operations may occur at the same time (via
- *  a multi-threaded ISR based system) however the same kind of operation (two or more insertions
- *  or deletions) must not overlap. If there is possibility of two or more of the same kind of
- *  operating occurring at the same point in time, atomic (mutex) locking should be used.
- *
- *  \section Sec_RingBuff_ExampleUsage Example Usage
- *  The following snippet is an example of how this module may be used within a typical
- *  application.
- *
- *  \code
- *      // Create the buffer structure and its underlying storage array
- *      RingBuffer_t Buffer;
- *      uint8_t      BufferData[128];
- *
- *      // Initialize the buffer with the created storage array
- *      RingBuffer_InitBuffer(&Buffer, BufferData, sizeof(BufferData));
- *
- *      // Insert some data into the buffer
- *      RingBuffer_Insert(&Buffer, 'H');
- *      RingBuffer_Insert(&Buffer, 'E');
- *      RingBuffer_Insert(&Buffer, 'L');
- *      RingBuffer_Insert(&Buffer, 'L');
- *      RingBuffer_Insert(&Buffer, 'O');
- *
- *      // Cache the number of stored bytes in the buffer
- *      uint16_t BufferCount = RingBuffer_GetCount(&Buffer);
- *
- *      // Printer stored data length
- *      printf("Buffer Length: %d, Buffer Data: \r\n", BufferCount);
- *
- *      // Print contents of the buffer one character at a time
- *      while (BufferCount--)
- *        putc(RingBuffer_Remove(&Buffer));
- *  \endcode
- *
- *  @{
- */
-
-#ifndef __RING_BUFFER_H__
-#define __RING_BUFFER_H__
-
-	/* Includes: */
-		#include "../../Common/Common.h"
-
-	/* Enable C linkage for C++ Compilers: */
-		#if defined(__cplusplus)
-			extern "C" {
-		#endif
-
-	/* Type Defines: */
-		/** \brief Ring Buffer Management Structure.
-		 *
-		 *  Type define for a new ring buffer object. Buffers should be initialized via a call to
-		 *  \ref RingBuffer_InitBuffer() before use.
-		 */
-		typedef struct
-		{
-			uint8_t* In; /**< Current storage location in the circular buffer. */
-			uint8_t* Out; /**< Current retrieval location in the circular buffer. */
-			uint8_t* Start; /**< Pointer to the start of the buffer's underlying storage array. */
-			uint8_t* End; /**< Pointer to the end of the buffer's underlying storage array. */
-			uint16_t Size; /**< Size of the buffer's underlying storage array. */
-			uint16_t Count; /**< Number of bytes currently stored in the buffer. */
-		} RingBuffer_t;
-
-	/* Inline Functions: */
-		/** Initializes a ring buffer ready for use. Buffers must be initialized via this function
-		 *  before any operations are called upon them. Already initialized buffers may be reset
-		 *  by re-initializing them using this function.
-		 *
-		 *  \param[out] Buffer   Pointer to a ring buffer structure to initialize.
-		 *  \param[out] DataPtr  Pointer to a global array that will hold the data stored into the ring buffer.
-		 *  \param[out] Size     Maximum number of bytes that can be stored in the underlying data array.
-		 */
-		static inline void RingBuffer_InitBuffer(RingBuffer_t* Buffer,
-		                                         uint8_t* const DataPtr,
-		                                         const uint16_t Size) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-		static inline void RingBuffer_InitBuffer(RingBuffer_t* Buffer,
-		                                         uint8_t* const DataPtr,
-		                                         const uint16_t Size)
-		{
-			GCC_FORCE_POINTER_ACCESS(Buffer);
-
-			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
-			GlobalInterruptDisable();
-
-			Buffer->In     = DataPtr;
-			Buffer->Out    = DataPtr;
-			Buffer->Start  = &DataPtr[0];
-			Buffer->End    = &DataPtr[Size];
-			Buffer->Size   = Size;
-			Buffer->Count  = 0;
-
-			SetGlobalInterruptMask(CurrentGlobalInt);
-		}
-
-		/** Retrieves the current number of bytes stored in a particular buffer. This value is computed
-		 *  by entering an atomic lock on the buffer, so that the buffer cannot be modified while the
-		 *  computation takes place. This value should be cached when reading out the contents of the buffer,
-		 *  so that as small a time as possible is spent in an atomic lock.
-		 *
-		 *  \note The value returned by this function is guaranteed to only be the minimum number of bytes
-		 *        stored in the given buffer; this value may change as other threads write new data, thus
-		 *        the returned number should be used only to determine how many successive reads may safely
-		 *        be performed on the buffer.
-		 *
-		 *  \param[in] Buffer  Pointer to a ring buffer structure whose count is to be computed.
-		 *
-		 *  \return Number of bytes currently stored in the buffer.
-		 */
-		static inline uint16_t RingBuffer_GetCount(RingBuffer_t* const Buffer) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
-		static inline uint16_t RingBuffer_GetCount(RingBuffer_t* const Buffer)
-		{
-			uint16_t Count;
-
-			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
-			GlobalInterruptDisable();
-
-			Count = Buffer->Count;
-
-			SetGlobalInterruptMask(CurrentGlobalInt);
-			return Count;
-		}
-
-		/** Retrieves the free space in a particular buffer. This value is computed by entering an atomic lock
-		 *  on the buffer, so that the buffer cannot be modified while the computation takes place.
-		 *
-		 *  \note The value returned by this function is guaranteed to only be the maximum number of bytes
-		 *        free in the given buffer; this value may change as other threads write new data, thus
-		 *        the returned number should be used only to determine how many successive writes may safely
-		 *        be performed on the buffer when there is a single writer thread.
-		 *
-		 *  \param[in] Buffer  Pointer to a ring buffer structure whose free count is to be computed.
-		 *
-		 *  \return Number of free bytes in the buffer.
-		 */
-		static inline uint16_t RingBuffer_GetFreeCount(RingBuffer_t* const Buffer) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
-		static inline uint16_t RingBuffer_GetFreeCount(RingBuffer_t* const Buffer)
-		{
-			return (Buffer->Size - RingBuffer_GetCount(Buffer));
-		}
-
-		/** Atomically determines if the specified ring buffer contains any data. This should
-		 *  be tested before removing data from the buffer, to ensure that the buffer does not
-		 *  underflow.
-		 *
-		 *  If the data is to be removed in a loop, store the total number of bytes stored in the
-		 *  buffer (via a call to the \ref RingBuffer_GetCount() function) in a temporary variable
-		 *  to reduce the time spent in atomicity locks.
-		 *
-		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to insert into.
-		 *
-		 *  \return Boolean \c true if the buffer contains no free space, \c false otherwise.
-		 */
-		static inline bool RingBuffer_IsEmpty(RingBuffer_t* const Buffer) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
-		static inline bool RingBuffer_IsEmpty(RingBuffer_t* const Buffer)
-		{
-			return (RingBuffer_GetCount(Buffer) == 0);
-		}
-
-		/** Atomically determines if the specified ring buffer contains any free space. This should
-		 *  be tested before storing data to the buffer, to ensure that no data is lost due to a
-		 *  buffer overrun.
-		 *
-		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to insert into.
-		 *
-		 *  \return Boolean \c true if the buffer contains no free space, \c false otherwise.
-		 */
-		static inline bool RingBuffer_IsFull(RingBuffer_t* const Buffer) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
-		static inline bool RingBuffer_IsFull(RingBuffer_t* const Buffer)
-		{
-			return (RingBuffer_GetCount(Buffer) == Buffer->Size);
-		}
-
-		/** Inserts an element into the ring buffer.
-		 *
-		 *  \warning Only one execution thread (main program thread or an ISR) may insert into a single buffer
-		 *           otherwise data corruption may occur. Insertion and removal may occur from different execution
-		 *           threads.
-		 *
-		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to insert into.
-		 *  \param[in]     Data    Data element to insert into the buffer.
-		 */
-		static inline void RingBuffer_Insert(RingBuffer_t* Buffer,
-		                                     const uint8_t Data) ATTR_NON_NULL_PTR_ARG(1);
-		static inline void RingBuffer_Insert(RingBuffer_t* Buffer,
-		                                     const uint8_t Data)
-		{
-			GCC_FORCE_POINTER_ACCESS(Buffer);
-
-			*Buffer->In = Data;
-
-			if (++Buffer->In == Buffer->End)
-			  Buffer->In = Buffer->Start;
-
-			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
-			GlobalInterruptDisable();
-
-			Buffer->Count++;
-
-			SetGlobalInterruptMask(CurrentGlobalInt);
-		}
-
-		/** Removes an element from the ring buffer.
-		 *
-		 *  \warning Only one execution thread (main program thread or an ISR) may remove from a single buffer
-		 *           otherwise data corruption may occur. Insertion and removal may occur from different execution
-		 *           threads.
-		 *
-		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to retrieve from.
-		 *
-		 *  \return Next data element stored in the buffer.
-		 */
-		static inline uint8_t RingBuffer_Remove(RingBuffer_t* Buffer) ATTR_NON_NULL_PTR_ARG(1);
-		static inline uint8_t RingBuffer_Remove(RingBuffer_t* Buffer)
-		{
-			GCC_FORCE_POINTER_ACCESS(Buffer);
-
-			uint8_t Data = *Buffer->Out;
-
-			if (++Buffer->Out == Buffer->End)
-			  Buffer->Out = Buffer->Start;
-
-			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
-			GlobalInterruptDisable();
-
-			Buffer->Count--;
-
-			SetGlobalInterruptMask(CurrentGlobalInt);
-
-			return Data;
-		}
-
-		/** Returns the next element stored in the ring buffer, without removing it.
-		 *
-		 *  \param[in,out] Buffer  Pointer to a ring buffer structure to retrieve from.
-		 *
-		 *  \return Next data element stored in the buffer.
-		 */
-		static inline uint8_t RingBuffer_Peek(RingBuffer_t* const Buffer) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
-		static inline uint8_t RingBuffer_Peek(RingBuffer_t* const Buffer)
-		{
-			return *Buffer->Out;
-		}
-
-	/* Disable C linkage for C++ Compilers: */
-		#if defined(__cplusplus)
-			}
-		#endif
-
-#endif
-
-/** @} */
-