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, 274 deletions

diff --git a/lib/lufa/Demos/Device/ClassDriver/AudioInput/AudioInput.c b/lib/lufa/Demos/Device/ClassDriver/AudioInput/AudioInput.c
deleted file mode 100644
index 2870bcd6f7..0000000000
--- a/lib/lufa/Demos/Device/ClassDriver/AudioInput/AudioInput.c
+++ /dev/null
@@ -1,274 +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
- *
- *  Main source file for the AudioInput demo. This file contains the main tasks of
- *  the demo and is responsible for the initial application hardware configuration.
- */
-
-#include "AudioInput.h"
-
-/** LUFA Audio Class driver interface configuration and state information. This structure is
- *  passed to all Audio Class driver functions, so that multiple instances of the same class
- *  within a device can be differentiated from one another.
- */
-USB_ClassInfo_Audio_Device_t Microphone_Audio_Interface =
-	{
-		.Config =
-			{
-				.ControlInterfaceNumber   = INTERFACE_ID_AudioControl,
-				.StreamingInterfaceNumber = INTERFACE_ID_AudioStream,
-				.DataINEndpoint           =
-					{
-						.Address          = AUDIO_STREAM_EPADDR,
-						.Size             = AUDIO_STREAM_EPSIZE,
-						.Banks            = 2,
-					},
-			},
-	};
-
-/** Current audio sampling frequency of the streaming audio endpoint. */
-static uint32_t CurrentAudioSampleFrequency = 48000;
-
-
-/** Main program entry point. This routine contains the overall program flow, including initial
- *  setup of all components and the main program loop.
- */
-int main(void)
-{
-	SetupHardware();
-
-	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	GlobalInterruptEnable();
-
-	for (;;)
-	{
-		Audio_Device_USBTask(&Microphone_Audio_Interface);
-		USB_USBTask();
-	}
-}
-
-/** Configures the board hardware and chip peripherals for the demo's functionality. */
-void SetupHardware(void)
-{
-#if (ARCH == ARCH_AVR8)
-	/* Disable watchdog if enabled by bootloader/fuses */
-	MCUSR &= ~(1 << WDRF);
-	wdt_disable();
-
-	/* Disable clock division */
-	clock_prescale_set(clock_div_1);
-#endif
-
-	/* Hardware Initialization */
-	LEDs_Init();
-	Buttons_Init();
-	ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_32);
-	ADC_SetupChannel(MIC_IN_ADC_CHANNEL);
-	USB_Init();
-
-	/* Start the ADC conversion in free running mode */
-	ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | ADC_GET_CHANNEL_MASK(MIC_IN_ADC_CHANNEL));
-}
-
-/** ISR to handle the reloading of the data endpoint with the next sample. */
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)
-{
-	uint8_t PrevEndpoint = Endpoint_GetCurrentEndpoint();
-
-	/* Check that the USB bus is ready for the next sample to write */
-	if (Audio_Device_IsReadyForNextSample(&Microphone_Audio_Interface))
-	{
-		int16_t AudioSample;
-
-		#if defined(USE_TEST_TONE)
-			static uint8_t SquareWaveSampleCount;
-			static int16_t CurrentWaveValue;
-
-			/* In test tone mode, generate a square wave at 1/256 of the sample rate */
-			if (SquareWaveSampleCount++ == 0xFF)
-			  CurrentWaveValue ^= 0x8000;
-
-			/* Only generate audio if the board button is being pressed */
-			AudioSample = (Buttons_GetStatus() & BUTTONS_BUTTON1) ? CurrentWaveValue : 0;
-		#else
-			/* Audio sample is ADC value scaled to fit the entire range */
-			AudioSample = ((SAMPLE_MAX_RANGE / ADC_MAX_RANGE) * ADC_GetResult());
-
-			#if defined(MICROPHONE_BIASED_TO_HALF_RAIL)
-			/* Microphone is biased to half rail voltage, subtract the bias from the sample value */
-			AudioSample -= (SAMPLE_MAX_RANGE / 2);
-			#endif
-		#endif
-
-		Audio_Device_WriteSample16(&Microphone_Audio_Interface, AudioSample);
-	}
-
-	Endpoint_SelectEndpoint(PrevEndpoint);
-}
-
-/** Event handler for the library USB Connection event. */
-void EVENT_USB_Device_Connect(void)
-{
-	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-
-	/* Sample reload timer initialization */
-	TIMSK0  = (1 << OCIE0A);
-	OCR0A   = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);
-	TCCR0A  = (1 << WGM01);  // CTC mode
-	TCCR0B  = (1 << CS01);   // Fcpu/8 speed
-}
-
-/** Event handler for the library USB Disconnection event. */
-void EVENT_USB_Device_Disconnect(void)
-{
-	/* Stop the sample reload timer */
-	TCCR0B = 0;
-
-	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-}
-
-/** Event handler for the library USB Configuration Changed event. */
-void EVENT_USB_Device_ConfigurationChanged(void)
-{
-	bool ConfigSuccess = true;
-
-	ConfigSuccess &= Audio_Device_ConfigureEndpoints(&Microphone_Audio_Interface);
-
-	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
-}
-
-/** Event handler for the library USB Control Request reception event. */
-void EVENT_USB_Device_ControlRequest(void)
-{
-	Audio_Device_ProcessControlRequest(&Microphone_Audio_Interface);
-}
-
-/** Audio class driver callback for the setting and retrieval of streaming endpoint properties. This callback must be implemented
- *  in the user application to handle property manipulations on streaming audio endpoints.
- *
- *  When the DataLength parameter is NULL, this callback should only indicate whether the specified operation is valid for
- *  the given endpoint index, and should return as fast as possible. When non-NULL, this value may be altered for GET operations
- *  to indicate the size of the retrieved data.
- *
- *  \note The length of the retrieved data stored into the Data buffer on GET operations should not exceed the initial value
- *        of the \c DataLength parameter.
- *
- *  \param[in,out] AudioInterfaceInfo  Pointer to a structure containing an Audio Class configuration and state.
- *  \param[in]     EndpointProperty    Property of the endpoint to get or set, a value from Audio_ClassRequests_t.
- *  \param[in]     EndpointAddress     Address of the streaming endpoint whose property is being referenced.
- *  \param[in]     EndpointControl     Parameter of the endpoint to get or set, a value from Audio_EndpointControls_t.
- *  \param[in,out] DataLength          For SET operations, the length of the parameter data to set. For GET operations, the maximum
- *                                     length of the retrieved data. When NULL, the function should return whether the given property
- *                                     and parameter is valid for the requested endpoint without reading or modifying the Data buffer.
- *  \param[in,out] Data                Pointer to a location where the parameter data is stored for SET operations, or where
- *                                     the retrieved data is to be stored for GET operations.
- *
- *  \return Boolean \c true if the property get/set was successful, \c false otherwise
- */
-bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
-                                                  const uint8_t EndpointProperty,
-                                                  const uint8_t EndpointAddress,
-                                                  const uint8_t EndpointControl,
-                                                  uint16_t* const DataLength,
-                                                  uint8_t* Data)
-{
-	/* Check the requested endpoint to see if a supported endpoint is being manipulated */
-	if (EndpointAddress == Microphone_Audio_Interface.Config.DataINEndpoint.Address)
-	{
-		/* Check the requested control to see if a supported control is being manipulated */
-		if (EndpointControl == AUDIO_EPCONTROL_SamplingFreq)
-		{
-			switch (EndpointProperty)
-			{
-				case AUDIO_REQ_SetCurrent:
-					/* Check if we are just testing for a valid property, or actually adjusting it */
-					if (DataLength != NULL)
-					{
-						/* Set the new sampling frequency to the value given by the host */
-						CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
-
-						/* Adjust sample reload timer to the new frequency */
-						OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);
-					}
-
-					return true;
-				case AUDIO_REQ_GetCurrent:
-					/* Check if we are just testing for a valid property, or actually reading it */
-					if (DataLength != NULL)
-					{
-						*DataLength = 3;
-
-						Data[2] = (CurrentAudioSampleFrequency >> 16);
-						Data[1] = (CurrentAudioSampleFrequency >> 8);
-						Data[0] = (CurrentAudioSampleFrequency &  0xFF);
-					}
-
-					return true;
-			}
-		}
-	}
-
-	return false;
-}
-
-/** Audio class driver callback for the setting and retrieval of streaming interface properties. This callback must be implemented
- *  in the user application to handle property manipulations on streaming audio interfaces.
- *
- *  When the DataLength parameter is NULL, this callback should only indicate whether the specified operation is valid for
- *  the given entity and should return as fast as possible. When non-NULL, this value may be altered for GET operations
- *  to indicate the size of the retrieved data.
- *
- *  \note The length of the retrieved data stored into the Data buffer on GET operations should not exceed the initial value
- *        of the \c DataLength parameter.
- *
- *  \param[in,out] AudioInterfaceInfo  Pointer to a structure containing an Audio Class configuration and state.
- *  \param[in]     Property            Property of the interface to get or set, a value from Audio_ClassRequests_t.
- *  \param[in]     EntityAddress       Address of the audio entity whose property is being referenced.
- *  \param[in]     Parameter           Parameter of the entity to get or set, specific to each type of entity (see USB Audio specification).
- *  \param[in,out] DataLength          For SET operations, the length of the parameter data to set. For GET operations, the maximum
- *                                     length of the retrieved data. When NULL, the function should return whether the given property
- *                                     and parameter is valid for the requested endpoint without reading or modifying the Data buffer.
- *  \param[in,out] Data                Pointer to a location where the parameter data is stored for SET operations, or where
- *                                     the retrieved data is to be stored for GET operations.
- *
- *  \return Boolean \c true if the property GET/SET was successful, \c false otherwise
- */
-bool CALLBACK_Audio_Device_GetSetInterfaceProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
-                                                   const uint8_t Property,
-                                                   const uint8_t EntityAddress,
-                                                   const uint16_t Parameter,
-                                                   uint16_t* const DataLength,
-                                                   uint8_t* Data)
-{
-	/* No audio interface entities in the device descriptor, thus no properties to get or set. */
-	return false;
-}