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87 lines
3.4 KiB
C
87 lines
3.4 KiB
C
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Header file for Descriptors.c.
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*/
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#ifndef _DESCRIPTORS_H_
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#define _DESCRIPTORS_H_
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/* Includes: */
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#include <LUFA/Drivers/USB/USB.h>
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#include <LUFA/Drivers/USB/Class/Device/Audio.h>
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#include <avr/pgmspace.h>
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/* Macros: */
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#if defined(USB_FULL_CONTROLLER) || defined(__DOXYGEN__)
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/** Endpoint number of the Audio isochronous streaming data endpoint. */
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#define AUDIO_STREAM_EPNUM 1
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#else
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#define AUDIO_STREAM_EPNUM 3
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#endif
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/** Endpoint size in bytes of the Audio isochronous streaming data endpoint. The Windows audio stack requires
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* at least 192 bytes for correct output, thus the smaller 128 byte maximum endpoint size on some of the smaller
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* USB AVR models will result in unavoidable distorted output.
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*/
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#define AUDIO_STREAM_EPSIZE ENDPOINT_MAX_SIZE(AUDIO_STREAM_EPNUM)
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/** Sample frequency of the data being transmitted through the streaming endpoint. */
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#define AUDIO_SAMPLE_FREQUENCY 48000
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/* Type Defines: */
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/** Type define for the device configuration descriptor structure. This must be defined in the
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* application code, as the configuration descriptor contains several sub-descriptors which
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* vary between devices, and which describe the device's usage to the host.
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*/
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typedef struct
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{
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USB_Descriptor_Configuration_Header_t Config;
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USB_Descriptor_Interface_t AudioControlInterface;
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USB_AudioInterface_AC_t AudioControlInterface_SPC;
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USB_AudioInputTerminal_t InputTerminal;
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USB_AudioOutputTerminal_t OutputTerminal;
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USB_Descriptor_Interface_t AudioStreamInterface_Alt0;
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USB_Descriptor_Interface_t AudioStreamInterface_Alt1;
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USB_AudioInterface_AS_t AudioStreamInterface_SPC;
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USB_AudioFormat_t AudioFormat;
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USB_AudioStreamEndpoint_Std_t AudioEndpoint;
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USB_AudioStreamEndpoint_Spc_t AudioEndpoint_SPC;
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} USB_Descriptor_Configuration_t;
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/* Function Prototypes: */
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uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
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ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
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#endif
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