Contiki 2.6

watchdog.c

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00001 /*
00002  * Copyright (c) 2010, STMicroelectronics.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above
00011  *    copyright notice, this list of conditions and the following
00012  *    disclaimer in the documentation and/or other materials provided
00013  *    with the distribution.
00014  * 3. The name of the author may not be used to endorse or promote
00015  *    products derived from this software without specific prior
00016  *    written permission.
00017  *
00018  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
00019  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00020  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00021  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
00022  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00023  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
00024  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00025  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
00026  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00027  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00028  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00029  *
00030  * This file is part of the Contiki OS
00031  *
00032  * $Id: watchdog.c,v 1.1 2010/10/25 09:03:39 salvopitru Exp $
00033  */
00034 /*---------------------------------------------------------------------------*/
00035 /**
00036 * \file
00037 *                       Watchdog
00038 * \author
00039 *                       Salvatore Pitrulli <salvopitru@users.sourceforge.net>
00040 */
00041 /*---------------------------------------------------------------------------*/
00042 
00043 #include <stdio.h>
00044 
00045 #include "dev/watchdog.h"
00046 
00047 #include PLATFORM_HEADER
00048 #include "hal/error.h"
00049 #include "hal/hal.h"
00050 
00051 
00052 /*---------------------------------------------------------------------------*/
00053 void
00054 watchdog_init(void)
00055 {
00056 
00057 }
00058 /*---------------------------------------------------------------------------*/
00059 void
00060 watchdog_start(void)
00061 {
00062   /* We setup the watchdog to reset the device after 2.048 seconds,
00063      unless watchdog_periodic() is called. */
00064   halInternalEnableWatchDog();
00065 }
00066 /*---------------------------------------------------------------------------*/
00067 void
00068 watchdog_periodic(void)
00069 {
00070   /* This function is called periodically to restart the watchdog
00071      timer. */
00072   halResetWatchdog();
00073 }
00074 /*---------------------------------------------------------------------------*/
00075 void
00076 watchdog_stop(void)
00077 {
00078   halInternalDisableWatchDog(MICRO_DISABLE_WATCH_DOG_KEY);
00079 }
00080 /*---------------------------------------------------------------------------*/
00081 void
00082 watchdog_reboot(void)
00083 {
00084   halReboot();
00085 }
00086 /*---------------------------------------------------------------------------*/