nes-proj/core/net/slipdev.h

89 lines
2.9 KiB
C

/**
* \addtogroup slip
* @{
*/
/**
* \file
* SLIP header file.
* \author Adam Dunkels <adam@dunkels.com>
*/
/*
* Copyright (c) 2001, Adam Dunkels.
* All rights reserved.
*
* 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 the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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.
*
* This file is part of the uIP TCP/IP stack.
*
* $Id: slipdev.h,v 1.1 2006/06/17 22:41:18 adamdunkels Exp $
*
*/
#ifndef __SLIPDEV_H__
#define __SLIPDEV_H__
#include "uip.h"
/**
* Put a character on the serial device.
*
* This function is used by the SLIP implementation to put a character
* on the serial device. It must be implemented specifically for the
* system on which the SLIP implementation is to be run.
*
* \param c The character to be put on the serial device.
*/
void slipdev_char_put(u8_t c);
/**
* Poll the serial device for a character.
*
* This function is used by the SLIP implementation to poll the serial
* device for a character. It must be implemented specifically for the
* system on which the SLIP implementation is to be run.
*
* The function should return immediately regardless if a character is
* available or not. If a character is available it should be placed
* at the memory location pointed to by the pointer supplied by the
* arguement c.
*
* \param c A pointer to a byte that is filled in by the function with
* the received character, if available.
*
* \retval 0 If no character is available.
* \retval Non-zero If a character is available.
*/
u8_t slipdev_char_poll(u8_t *c);
void slipdev_init(void);
u8_t slipdev_send(void);
u16_t slipdev_poll(void);
#endif /* __SLIPDEV_H__ */
/** @} */