watchdog.h Source File

00001 /***************************************************************************
00002 BSD License
00003  
00004 Copyright (c) 2002, Intel Corporation
00005 All rights reserved.
00006  
00007 Redistribution and use in source and binary forms, with or without
00008 modification, are permitted provided that the following conditions are met:
00009  
00010   a.. Redistributions of source code must retain the above copyright notice,
00011       this list of conditions and the following disclaimer.
00012   b.. Redistributions in binary form must reproduce the above copyright notice,
00013       this list of conditions and the following disclaimer in the documentation
00014       and/or other materials provided with the distribution.
00015   c.. Neither the name of Intel Corporation nor the names of its contributors
00016       may be used to endorse or promote products derived from this software
00017       without specific prior written permission.
00018  
00019 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
00020 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00021 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00022 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
00023 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00024 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00025 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
00026 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00027 (INCLUDING 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 ****************************************************************************/
00031 
00032 #ifndef __WATCHDOG_H__
00033 #define __WATCHDOG_H__
00034 
00035 /** This is the interface to write to in order to reset the timer */
00036 #define WATCHDOG_DEVICE  "/dev/watchdog"
00037 
00038 /**This is the time between watchdog timer resets  */
00039 #define WATCHDOG_RESET_INTERVAL  60    /* seconds */
00040 
00041 
00042 extern gboolean watchdog_enabled;
00043 extern unsigned long watchdog_period;
00044 extern int watchdog_fd;
00045 
00046 int reset_watchdog(void);  
00047 int setup_watchdog_callback(void);
00048 
00049 #endif /* __WATCHDOG_H__ */
00050