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+/*
+ 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
+ *
+ * Header file for Descriptors.c.
+ */
+
+#ifndef _DESCRIPTORS_H_
+#define _DESCRIPTORS_H_
+
+ /* Includes: */
+ #include <LUFA/Drivers/USB/USB.h>
+
+ #include <avr/pgmspace.h>
+
+ #include "Config/AppConfig.h"
+
+ /* Macros: */
+ /** Endpoint address of the Audio isochronous streaming data IN endpoint. */
+ #define AUDIO_STREAM_EPADDR (ENDPOINT_DIR_IN | 1)
+
+ /** Endpoint size in bytes of the Audio isochronous streaming data endpoint. */
+ #define AUDIO_STREAM_EPSIZE 256
+
+ /* Type Defines: */
+ /** Type define for the device configuration descriptor structure. This must be defined in the
+ * application code, as the configuration descriptor contains several sub-descriptors which
+ * vary between devices, and which describe the device's usage to the host.
+ */
+ typedef struct
+ {
+ USB_Descriptor_Configuration_Header_t Config;
+
+ // Audio Control Interface
+ USB_Descriptor_Interface_t Audio_ControlInterface;
+ USB_Audio_Descriptor_Interface_AC_t Audio_ControlInterface_SPC;
+ USB_Audio_Descriptor_InputTerminal_t Audio_InputTerminal;
+ USB_Audio_Descriptor_OutputTerminal_t Audio_OutputTerminal;
+
+ // Audio Streaming Interface
+ USB_Descriptor_Interface_t Audio_StreamInterface_Alt0;
+ USB_Descriptor_Interface_t Audio_StreamInterface_Alt1;
+ USB_Audio_Descriptor_Interface_AS_t Audio_StreamInterface_SPC;
+ USB_Audio_Descriptor_Format_t Audio_AudioFormat;
+ USB_Audio_SampleFreq_t Audio_AudioFormatSampleRates[5];
+ USB_Audio_Descriptor_StreamEndpoint_Std_t Audio_StreamEndpoint;
+ USB_Audio_Descriptor_StreamEndpoint_Spc_t Audio_StreamEndpoint_SPC;
+ } USB_Descriptor_Configuration_t;
+
+ /** Enum for the device interface descriptor IDs within the device. Each interface descriptor
+ * should have a unique ID index associated with it, which can be used to refer to the
+ * interface from other descriptors.
+ */
+ enum InterfaceDescriptors_t
+ {
+ INTERFACE_ID_AudioControl = 0, /**< Audio control interface descriptor ID */
+ INTERFACE_ID_AudioStream = 1, /**< Audio stream interface descriptor ID */
+ };
+
+ /** Enum for the device string descriptor IDs within the device. Each string descriptor should
+ * have a unique ID index associated with it, which can be used to refer to the string from
+ * other descriptors.
+ */
+ enum StringDescriptors_t
+ {
+ STRING_ID_Language = 0, /**< Supported Languages string descriptor ID (must be zero) */
+ STRING_ID_Manufacturer = 1, /**< Manufacturer string ID */
+ STRING_ID_Product = 2, /**< Product string ID */
+ };
+
+ /* Function Prototypes: */
+ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+ const uint16_t wIndex,
+ const void** const DescriptorAddress)
+ ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
+
+#endif
+