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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.
* ----------------------------------------------------------------------------
*/
/*
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 <Endpoint directions>).
//------------------------------------------------------------------------------
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 <Endpoint types>).
//------------------------------------------------------------------------------
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;
}
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