forked from mfulz_github/qmk_firmware
2731c3a8ae
Modified the Class Driver AudioInput and AudioOutput demos to support multiple sample rates. Fixed KeyboardHost and KeyboardHostWithParser demos displaying incorrect values when numerical keys were pressed. Fix broken LowLevel audio demo descriptors. Minor documentation fixes.
82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
/*
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LUFA Library
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Copyright (C) Dean Camera, 2011.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all 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 <avr/pgmspace.h>
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/* Macros: */
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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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/** 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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/* 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 Audio_ControlInterface;
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USB_Audio_Descriptor_Interface_AC_t Audio_ControlInterface_SPC;
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USB_Audio_Descriptor_InputTerminal_t Audio_InputTerminal;
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USB_Audio_Descriptor_OutputTerminal_t Audio_OutputTerminal;
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USB_Descriptor_Interface_t Audio_StreamInterface_Alt0;
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USB_Descriptor_Interface_t Audio_StreamInterface_Alt1;
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USB_Audio_Descriptor_Interface_AS_t Audio_StreamInterface_SPC;
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USB_Audio_Descriptor_Format_t Audio_AudioFormat;
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USB_Audio_SampleFreq_t Audio_AudioFormatSampleRates[5];
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USB_Audio_Descriptor_StreamEndpoint_Std_t Audio_StreamEndpoint;
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USB_Audio_Descriptor_StreamEndpoint_Spc_t Audio_StreamEndpoint_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,
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const uint8_t wIndex,
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const 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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