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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \unit
///
/// !!!Purpose
///
/// Definitions of constants and methods for using USB %audio requests
/// targetted at a Feature unit.
///
/// !!!Usage
///
/// - For a USB %device:
/// -# Use AUDFeatureUnitRequest_GetControl to determine which control
/// shall be tweaked following a host request.
// -# Use AUDFeatureUnitRequest_GetChannel to identify the channel which
// will have its control altered.
//------------------------------------------------------------------------------
#ifndef AUDFEATUREUNITREQUEST_H
#define AUDFEATUREUNITREQUEST_H
//------------------------------------------------------------------------------
// Headers
//------------------------------------------------------------------------------
#include <usb/common/core/USBGenericRequest.h>
//------------------------------------------------------------------------------
// Constants
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
/// \page "USB Audio Control selector values"
///
/// This page lists the available control selectors for a Feature Unit request.
///
/// !Controls
/// - AUDFeatureUnitRequest_MUTE
/// Mute control selector.
#define AUDFeatureUnitRequest_MUTE 0x01
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
extern unsigned char AUDFeatureUnitRequest_GetControl(
const USBGenericRequest *request);
extern unsigned char AUDFeatureUnitRequest_GetChannel(
const USBGenericRequest *request);
#endif //#ifndef AUDFEATUREUNITREQUEST_H
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