/* ----------------------------------------------------------------------------
 *         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.
 * ----------------------------------------------------------------------------
 */
/*
 * $Id: USBEndpointDescriptor.c 23837 2010-10-13 13:45:05Z mahendran.p $
 */

/*
    Title: USBEndpointDescriptor implementation

    About: Purpose
        Implementation of the USBEndpointDescriptor class.
*/

//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------

#include "USBEndpointDescriptor.h"

/*------------------------------------------------------------------------------
 *         Exported functions
 *------------------------------------------------------------------------------
 */

/**
 *  Returns the number of an endpoint given its descriptor.
 *  \param endpoint Pointer to a USBEndpointDescriptor instance.
 *  \return Endpoint number.
 */
unsigned char USBEndpointDescriptor_GetNumber(
    const USBEndpointDescriptor *endpoint)
{
    return endpoint->bEndpointAddress & 0xF;
}

/**
 *  Returns the direction of an endpoint given its descriptor.
 *  \param endpoint Pointer to a USBEndpointDescriptor instance.
 *  \return Endpoint direction (see \ref usb_ep_dir).
 */
unsigned char USBEndpointDescriptor_GetDirection(
    const USBEndpointDescriptor *endpoint)
{
    if ((endpoint->bEndpointAddress & 0x80) != 0) {

        return USBEndpointDescriptor_IN;
    }
    else {

        return USBEndpointDescriptor_OUT;
    }
}

/**
 *  Returns the type of an endpoint given its descriptor.
 *  \param endpoint Pointer to a USBEndpointDescriptor instance.
 *  \return Endpoint type (see \ref usb_ep_type).
 */
unsigned char USBEndpointDescriptor_GetType(
    const USBEndpointDescriptor *endpoint)
{
    return endpoint->bmAttributes & 0x3;
}

/**
 *  Returns the maximum size of a packet (in bytes) on an endpoint given
 *  its descriptor.
 *  \param endpoint - Pointer to a USBEndpointDescriptor instance.
 *  \return Maximum packet size of endpoint.
 */
unsigned short USBEndpointDescriptor_GetMaxPacketSize(
    const USBEndpointDescriptor *endpoint)
{
    return endpoint->wMaxPacketSize;
}

/**
 *  Returns the polling interval on an endpoint given its descriptor.
 *  \param endpoint - Pointer to a USBEndpointDescriptor instance.
 *  \return Polling interval of endpoint.
 */
unsigned char USBEndpointDescriptor_GetInterval(
    const USBEndpointDescriptor *endpoint)
{
    return endpoint->bInterval;
}

/**      @}*/
/**@}*/

