mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 16:29:34 +00:00
87 lines
3.0 KiB
C
87 lines
3.0 KiB
C
/* -*- C -*- */
|
|
/*
|
|
* Copyright (c) 2005, 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. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 Contiki operating system.
|
|
*
|
|
*/
|
|
|
|
#ifndef SLIP_H_
|
|
#define SLIP_H_
|
|
|
|
#include "contiki.h"
|
|
|
|
PROCESS_NAME(slip_process);
|
|
|
|
/**
|
|
* Send an IP packet from the uIP buffer with SLIP.
|
|
*/
|
|
uint8_t slip_send(void);
|
|
|
|
/**
|
|
* Input a SLIP byte.
|
|
*
|
|
* This function is called by the RS232/SIO device driver to pass
|
|
* incoming bytes to the SLIP driver. The function can be called from
|
|
* an interrupt context.
|
|
*
|
|
* For systems using low-power CPU modes, the return value of the
|
|
* function can be used to determine if the CPU should be woken up or
|
|
* not. If the function returns non-zero, the CPU should be powered
|
|
* up. If the function returns zero, the CPU can continue to be
|
|
* powered down.
|
|
*
|
|
* \param c The data that is to be passed to the SLIP driver
|
|
*
|
|
* \return Non-zero if the CPU should be powered up, zero otherwise.
|
|
*/
|
|
int slip_input_byte(unsigned char c);
|
|
|
|
uint8_t slip_write(const void *ptr, int len);
|
|
|
|
/* Did we receive any bytes lately? */
|
|
extern uint8_t slip_active;
|
|
|
|
/* Statistics. */
|
|
extern uint16_t slip_rubbish, slip_twopackets, slip_overflow, slip_ip_drop;
|
|
|
|
/**
|
|
* Set a function to be called when there is activity on the SLIP
|
|
* interface; used for detecting if a node is a gateway node.
|
|
*/
|
|
void slip_set_input_callback(void (*callback)(void));
|
|
|
|
/*
|
|
* These machine dependent functions and an interrupt service routine
|
|
* must be provided externally (slip_arch.c).
|
|
*/
|
|
void slip_arch_init(unsigned long ubr);
|
|
void slip_arch_writeb(unsigned char c);
|
|
|
|
#endif /* SLIP_H_ */
|