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/**
* \file
*
* \brief Common API for USB Device Interface
*
* Copyright (c) 2009-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* 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
* EXPRESSLY AND SPECIFICALLY 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.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
*/
#ifndef _UDI_H_
#define _UDI_H_
#include "conf_usb.h"
#include "usb_protocol.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* \ingroup usb_device_group
* \defgroup udi_group USB Device Interface (UDI)
* The UDI provides a common API for all classes,
* and this is used by UDC for the main control of USB Device interface.
* @{
*/
/**
* \brief UDI API.
*
* The callbacks within this structure are called only by
* USB Device Controller (UDC)
*
* The udc_get_interface_desc() can be use by UDI to know the interface descriptor
* selected by UDC.
*/
typedef struct {
/**
* \brief Enable the interface.
*
* This function is called when the host selects a configuration
* to which this interface belongs through a Set Configuration
* request, and when the host selects an alternate setting of
* this interface through a Set Interface request.
*
* \return \c 1 if function was successfully done, otherwise \c 0.
*/
bool (*enable)(void);
/**
* \brief Disable the interface.
*
* This function is called when this interface is currently
* active, and
* - the host selects any configuration through a Set
* Configuration request, or
* - the host issues a USB reset, or
* - the device is detached from the host (i.e. Vbus is no
* longer present)
*/
void (*disable)(void);
/**
* \brief Handle a control request directed at an interface.
*
* This function is called when this interface is currently
* active and the host sends a SETUP request
* with this interface as the recipient.
*
* Use udd_g_ctrlreq to decode and response to SETUP request.
*
* \return \c 1 if this interface supports the SETUP request, otherwise \c 0.
*/
bool (*setup)(void);
/**
* \brief Returns the current setting of the selected interface.
*
* This function is called when UDC when know alternate setting of selected interface.
*
* \return alternate setting of selected interface
*/
uint8_t (*getsetting)(void);
/**
* \brief To signal that a SOF is occurred
*/
void (*sof_notify)(void);
} udi_api_t;
//@}
#ifdef __cplusplus
}
#endif
#endif // _UDI_H_
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