osd-contiki/platform/esb/net/rs232-slip-drv.c
2006-06-18 08:19:10 +00:00

73 lines
2.7 KiB
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.
*
* @(#)$Id: rs232-slip-drv.c,v 1.3 2006/06/18 08:19:28 adamdunkels Exp $
*/
#include "contiki.h"
#include "uip.h"
#include "tcpip.h"
#include "rs232-slip.h"
EK_POLLHANDLER(pollhandler);
EK_EVENTHANDLER(eventhandler, ev, data);
EK_PROCESS(p, "SLIP driver", EK_PRIO_HIGH,
eventhandler, pollhandler, NULL);
static ek_id_t id = EK_ID_NONE;
/*---------------------------------------------------------------------------*/
EK_POLLHANDLER(pollhandler)
{
uip_len = rs232_slip_poll();
tcpip_input();
}
/*---------------------------------------------------------------------------*/
EK_PROCESS_INIT(rs232_slip_drv_init, arg)
{
arg_free(arg);
if(id == EK_ID_NONE) {
id = ek_start(&p);
}
}
/*---------------------------------------------------------------------------*/
EK_EVENTHANDLER(eventhandler, ev, data)
{
EK_EVENTHANDLER_ARGS(ev, data);
}
/*---------------------------------------------------------------------------*/
void
rs232_slip_drv_request_poll(void)
{
ek_request_poll(id);
}
/*---------------------------------------------------------------------------*/