28a4afaf3a
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@111 42af7a65-404d-4744-a932-0658087f49c3
114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/************************************************************
|
|
* wdog.h
|
|
*
|
|
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 Gregory Nutt 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 COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT OWNER 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.
|
|
*
|
|
************************************************************/
|
|
|
|
#ifndef __WDOG_H
|
|
#define __WDOG_H
|
|
|
|
/************************************************************
|
|
* Included Files
|
|
************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <sched.h>
|
|
|
|
/************************************************************
|
|
* Compilations Switches
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Definitions
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Global Type Declarations
|
|
************************************************************/
|
|
|
|
/* The arguments are passed as uint32 values. For systems
|
|
* where the sizeof(pointer) < sizeof(uint32), the following
|
|
* union defines the alignment of the pointer within the
|
|
* uint32. For example, the SDCC MCS51 general pointer is
|
|
* 24-bits, but uint32 is 32-bits (of course).
|
|
*
|
|
* For systems where sizeof(pointer) > sizeof(uint32), we will
|
|
* have to do some redesign.
|
|
*/
|
|
|
|
union wdparm_u
|
|
{
|
|
void *pvarg;
|
|
uint32 *dwarg;
|
|
};
|
|
typedef union wdparm_u wdparm_t;
|
|
|
|
/* This is the form of the function that is called when the
|
|
* watchdog function expires. Up to four parameters may be passed.
|
|
*/
|
|
|
|
typedef void (*wdentry_t)(int argc, uint32 arg1, ...);
|
|
|
|
/* Watchdog 'handle' */
|
|
|
|
typedef FAR struct wdog_s *WDOG_ID;
|
|
|
|
/************************************************************
|
|
* Global Variables
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Global Function Prototypes
|
|
************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C" {
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
EXTERN WDOG_ID wd_create(void);
|
|
EXTERN STATUS wd_delete(WDOG_ID wdog);
|
|
EXTERN STATUS wd_start(WDOG_ID wdog, int delay, wdentry_t wdentry,
|
|
int argc, ...);
|
|
EXTERN STATUS wd_cancel(WDOG_ID wdog);
|
|
EXTERN int wd_gettime(WDOG_ID wdog);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _WDOG_H_ */
|
|
|