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, 302 deletions

diff --git a/lib/lufa/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.h b/lib/lufa/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.h
deleted file mode 100644
index 94ada73719..0000000000
--- a/lib/lufa/LUFA/Drivers/Peripheral/XMEGA/TWI_XMEGA.h
+++ /dev/null
@@ -1,302 +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 TWI Peripheral Driver (XMEGA)
- *
- *  On-chip TWI driver for the XMEGA Family of AVR microcontrollers.
- *
- *  \note This file should not be included directly. It is automatically included as needed by the TWI driver
- *        dispatch header located in LUFA/Drivers/Peripheral/TWI.h.
- */
-
-/** \ingroup Group_TWI
- *  \defgroup Group_TWI_XMEGA TWI Peripheral Driver (XMEGA)
- *
- *  \section Sec_TWI_XMEGA_ModDescription Module Description
- *  Master mode TWI driver for the 8-bit AVR microcontrollers which contain a hardware TWI module.
- *
- *  \note This file should not be included directly. It is automatically included as needed by the TWI driver
- *        dispatch header located in LUFA/Drivers/Peripheral/TWI.h.
- *
- *  \section Sec_TWI_XMEGA_ExampleUsage Example Usage
- *  The following snippet is an example of how this module may be used within a typical
- *  application.
- *
- *  <b>Low Level API Example:</b>
- *  \code
- *      // Initialize the TWI driver before first use at 200KHz
- *      TWI_Init(&TWIC, TWI_BAUD_FROM_FREQ(200000));
- *
- *      // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout
- *      if (TWI_StartTransmission(&TWIC, 0xA0 | TWI_ADDRESS_WRITE, 10) == TWI_ERROR_NoError)
- *      {
- *          TWI_SendByte(&TWIC, 0xDC);
- *
- *          TWI_SendByte(&TWIC, 0x01);
- *          TWI_SendByte(&TWIC, 0x02);
- *          TWI_SendByte(&TWIC, 0x03);
- *
- *          // Must stop transmission afterwards to release the bus
- *          TWI_StopTransmission(&TWIC);
- *      }
- *
- *      // Start a read session to device at address 0xA0, internal address 0xDC with a 10ms timeout
- *      if (TWI_StartTransmission(&TWIC, 0xA0 | TWI_ADDRESS_WRITE, 10) == TWI_ERROR_NoError)
- *      {
- *          TWI_SendByte(&TWIC, 0xDC);
- *          TWI_StopTransmission(&TWIC);
- *
- *          if (TWI_StartTransmission(&TWIC, 0xA0 | TWI_ADDRESS_READ, 10) == TWI_ERROR_NoError)
- *          {
- *              uint8_t Byte1, Byte2, Byte3;
- *
- *              // Read three bytes, acknowledge after the third byte is received
- *              TWI_ReceiveByte(&TWIC, &Byte1, false);
- *              TWI_ReceiveByte(&TWIC, &Byte2, false);
- *              TWI_ReceiveByte(&TWIC, &Byte3, true);
- *
- *              // Must stop transmission afterwards to release the bus
- *              TWI_StopTransmission(&TWIC);
- *          }
- *      }
- *  \endcode
- *
- *  <b>High Level API Example:</b>
- *  \code
- *      // Initialize the TWI driver before first use at 200KHz
- *      TWI_Init(&TWIC, TWI_BAUD_FROM_FREQ(200000));
- *
- *      // Start a write session to device at device address 0xA0, internal address 0xDC with a 10ms timeout
- *      uint8_t InternalWriteAddress = 0xDC;
- *      uint8_t WritePacket[3] = {0x01, 0x02, 0x03};
- *
- *      TWI_WritePacket(&TWIC, 0xA0, 10, &InternalWriteAddress, sizeof(InternalWriteAddress),
- *                      &WritePacket, sizeof(WritePacket);
- *
- *      // Start a read session to device at address 0xA0, internal address 0xDC with a 10ms timeout
- *      uint8_t InternalReadAddress = 0xDC;
- *      uint8_t ReadPacket[3];
- *
- *      TWI_ReadPacket(&TWIC, 0xA0, 10, &InternalReadAddress, sizeof(InternalReadAddress),
- *                     &ReadPacket, sizeof(ReadPacket);
- *  \endcode
- *
- *  @{
- */
-
-#ifndef __TWI_XMEGA_H__
-#define __TWI_XMEGA_H__
-
-	/* Includes: */
-		#include "../../../Common/Common.h"
-
-		#include <stdio.h>
-
-	/* Enable C linkage for C++ Compilers: */
-		#if defined(__cplusplus)
-			extern "C" {
-		#endif
-
-	/* Preprocessor Checks: */
-		#if !defined(__INCLUDE_FROM_TWI_H) && !defined(__INCLUDE_FROM_TWI_C)
-			#error Do not include this file directly. Include LUFA/Drivers/Peripheral/TWI.h instead.
-		#endif
-
-	/* Public Interface - May be used in end-application: */
-		/* Macros: */
-			/** TWI slave device address mask for a read session. Mask with a slave device base address to obtain
-			 *  the correct TWI bus address for the slave device when reading data from it.
-			 */
-			#define TWI_ADDRESS_READ         0x01
-
-			/** TWI slave device address mask for a write session. Mask with a slave device base address to obtain
-			 *  the correct TWI bus address for the slave device when writing data to it.
-			 */
-			#define TWI_ADDRESS_WRITE        0x00
-
-			/** Mask to retrieve the base address for a TWI device, which can then be ORed with \ref TWI_ADDRESS_READ
-			 *  or \ref TWI_ADDRESS_WRITE to obtain the device's read and write address respectively.
-			 */
-			#define TWI_DEVICE_ADDRESS_MASK  0xFE
-
-			/** Calculates the length of each bit on the TWI bus for a given target frequency. This may be used with
-			 *  the \ref TWI_Init() function to convert a bus frequency to a number of clocks for the \c BitLength
-			 *  parameter.
-			 *
-			 *  \param[in] Frequency  Desired TWI bus frequency in Hz.
-			 *
-			 *  \return Bit length in clocks for the given TWI bus frequency at the given prescaler value.
-			 */
-			#define TWI_BAUD_FROM_FREQ(Frequency) ((F_CPU / (2 * Frequency)) - 5)
-
-		/* Enums: */
-			/** Enum for the possible return codes of the TWI transfer start routine and other dependant TWI functions. */
-			enum TWI_ErrorCodes_t
-			{
-				TWI_ERROR_NoError              = 0, /**< Indicates that the command completed successfully. */
-				TWI_ERROR_BusFault             = 1, /**< A TWI bus fault occurred while attempting to capture the bus. */
-				TWI_ERROR_BusCaptureTimeout    = 2, /**< A timeout occurred whilst waiting for the bus to be ready. */
-				TWI_ERROR_SlaveResponseTimeout = 3, /**< No ACK received at the nominated slave address within the timeout period. */
-				TWI_ERROR_SlaveNotReady        = 4, /**< Slave NAKed the TWI bus START condition. */
-				TWI_ERROR_SlaveNAK             = 5, /**< Slave NAKed whilst attempting to send data to the device. */
-			};
-
-		/* Inline Functions: */
-			/** Initializes the TWI hardware into master mode, ready for data transmission and reception. This must be
-			 *  before any other TWI operations.
-			 *
-			 *  The generated SCL frequency will be according to the formula <pre>F_CPU / (2 * (5 + (BAUD)))</pre>.
-			 *
-			 *  \attention The value of the \c BitLength parameter should not be set below 10 or invalid bus conditions may
-			 *             occur, as indicated in the XMEGA microcontroller datasheet.
-			 *
-			 *  \param[in] TWI   Pointer to the base of the TWI peripheral within the device.
-			 *  \param[in] Baud  Value of the BAUD register of the TWI Master.
-			 */
-			static inline void TWI_Init(TWI_t* const TWI,
-			                            const uint8_t Baud) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
-			static inline void TWI_Init(TWI_t* const TWI,
-			                            const uint8_t Baud)
-			{
-				TWI->CTRL          = 0x00;
-				TWI->MASTER.BAUD   = Baud;
-				TWI->MASTER.CTRLA  = TWI_MASTER_ENABLE_bm;
-				TWI->MASTER.CTRLB  = 0;
-				TWI->MASTER.STATUS = TWI_MASTER_BUSSTATE_IDLE_gc;
-			}
-
-			/** Turns off the TWI driver hardware. If this is called, any further TWI operations will require a call to
-			 *  \ref TWI_Init() before the TWI can be used again.
-	   		 *
-			 *  \param[in] TWI  Pointer to the base of the TWI peripheral within the device.
-			 */
-			static inline void TWI_Disable(TWI_t* const TWI) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
-			static inline void TWI_Disable(TWI_t* const TWI)
-			{
-				TWI->MASTER.CTRLA &= ~TWI_MASTER_ENABLE_bm;
-			}
-
-			/** Sends a TWI STOP onto the TWI bus, terminating communication with the currently addressed device.
-			 *
-			 *  \param[in] TWI  Pointer to the base of the TWI peripheral within the device.
-			 */
-			static inline void TWI_StopTransmission(TWI_t* const TWI) ATTR_ALWAYS_INLINE ATTR_NON_NULL_PTR_ARG(1);
-			static inline void TWI_StopTransmission(TWI_t* const TWI)
-			{
-				TWI->MASTER.CTRLC = TWI_MASTER_ACKACT_bm | TWI_MASTER_CMD_STOP_gc;
-			}
-
-		/* Function Prototypes: */
-			/** Begins a master mode TWI bus communication with the given slave device address.
-			 *
-			 *  \param[in] TWI           Pointer to the base of the TWI peripheral within the device.
-			 *  \param[in] SlaveAddress  Address of the slave TWI device to communicate with.
-			 *  \param[in] TimeoutMS     Timeout period within which the slave must respond, in milliseconds.
-			 *
-			 *  \return A value from the \ref TWI_ErrorCodes_t enum.
-			 */
-			uint8_t TWI_StartTransmission(TWI_t* const TWI,
-			                              const uint8_t SlaveAddress,
-			                              const uint8_t TimeoutMS) ATTR_NON_NULL_PTR_ARG(1);
-
-			/** Sends a byte to the currently addressed device on the TWI bus.
-			 *
-			 *  \param[in] TWI   Pointer to the base of the TWI peripheral within the device.
-			 *  \param[in] Byte  Byte to send to the currently addressed device
-			 *
-			 *  \return Boolean \c true if the recipient ACKed the byte, \c false otherwise
-			 */
-			bool TWI_SendByte(TWI_t* const TWI,
-			                  const uint8_t Byte) ATTR_NON_NULL_PTR_ARG(1);
-
-			/** Receives a byte from the currently addressed device on the TWI bus.
-			 *
-			 *  \param[in] TWI       Pointer to the base of the TWI peripheral within the device.
-			 *  \param[in] Byte      Location where the read byte is to be stored.
-			 *  \param[in] LastByte  Indicates if the byte should be ACKed if false, NAKed if true.
-			 *
-			 *  \return Boolean \c true if the byte reception successfully completed, \c false otherwise.
-			 */
-			bool TWI_ReceiveByte(TWI_t* const TWI,
-			                     uint8_t* const Byte,
-			                     const bool LastByte) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-
-			/** High level function to perform a complete packet transfer over the TWI bus to the specified
-			 *  device.
-			 *
-			 *  \param[in] TWI                 Pointer to the base of the TWI peripheral within the device.
-			 *  \param[in] SlaveAddress        Base address of the TWI slave device to communicate with.
-			 *  \param[in] TimeoutMS           Timeout for bus capture and slave START ACK, in milliseconds.
-			 *  \param[in] InternalAddress     Pointer to a location where the internal slave read start address is stored.
-			 *  \param[in] InternalAddressLen  Size of the internal device address, in bytes.
-			 *  \param[in] Buffer              Pointer to a buffer where the read packet data is to be stored.
-			 *  \param[in] Length              Size of the packet to read, in bytes.
-			 *
-			 *  \return A value from the \ref TWI_ErrorCodes_t enum.
-			 */
-			uint8_t TWI_ReadPacket(TWI_t* const TWI,
-			                       const uint8_t SlaveAddress,
-			                       const uint8_t TimeoutMS,
-			                       const uint8_t* InternalAddress,
-			                       uint8_t InternalAddressLen,
-			                       uint8_t* Buffer,
-			                       uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(4);
-
-			/** High level function to perform a complete packet transfer over the TWI bus from the specified
-			 *  device.
-			 *
-			 *  \param[in] TWI                 Pointer to the base of the TWI peripheral within the device.
-			 *  \param[in] SlaveAddress        Base address of the TWI slave device to communicate with
-			 *  \param[in] TimeoutMS           Timeout for bus capture and slave START ACK, in milliseconds
-			 *  \param[in] InternalAddress     Pointer to a location where the internal slave write start address is stored
-			 *  \param[in] InternalAddressLen  Size of the internal device address, in bytes
-			 *  \param[in] Buffer              Pointer to a buffer where the packet data to send is stored
-			 *  \param[in] Length              Size of the packet to send, in bytes
-			 *
-			 *  \return A value from the \ref TWI_ErrorCodes_t enum.
-			 */
-			uint8_t TWI_WritePacket(TWI_t* const TWI,
-			                        const uint8_t SlaveAddress,
-			                        const uint8_t TimeoutMS,
-			                        const uint8_t* InternalAddress,
-			                        uint8_t InternalAddressLen,
-			                        const uint8_t* Buffer,
-			                        uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(4);
-
-	/* Disable C linkage for C++ Compilers: */
-		#if defined(__cplusplus)
-			}
-		#endif
-
-#endif
-
-/** @} */
-