sio.h

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/*
 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
 * 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 lwIP TCP/IP stack.
 */
 
/*
 * This is the interface to the platform specific serial IO module
 * It needs to be implemented by those platforms which need SLIP or PPP
 */

#ifndef SIO_H
#define SIO_H
 
#include "lwip/arch.h"
#include "lwip/opt.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* If you want to define sio_fd_t elsewhere or differently,
   define this in your cc.h file. */
#ifndef __sio_fd_t_defined
typedef void * sio_fd_t;
#endif
 
/* The following functions can be defined to something else in your cc.h file
   or be implemented in your custom sio.c file. */
 
#ifndef sio_open
sio_fd_t sio_open(u8_t devnum);
#endif
 
#ifndef sio_send
void sio_send(u8_t c, sio_fd_t fd);
#endif
 
#ifndef sio_recv
u8_t sio_recv(sio_fd_t fd);
#endif
 
#ifndef sio_read
u32_t sio_read(sio_fd_t fd, u8_t *data, u32_t len);
#endif
 
#ifndef sio_tryread
u32_t sio_tryread(sio_fd_t fd, u8_t *data, u32_t len);
#endif
 
#ifndef sio_write
u32_t sio_write(sio_fd_t fd, const u8_t *data, u32_t len);
#endif
 
#ifndef sio_read_abort
void sio_read_abort(sio_fd_t fd);
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif /* SIO_H */