b08a86171f
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3 42af7a65-404d-4744-a932-0658087f49c3
122 lines
4.0 KiB
C
122 lines
4.0 KiB
C
/************************************************************
|
|
* wd_internal.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 __WD_INTERNAL_H
|
|
#define __WD_INTERNAL_H
|
|
|
|
/************************************************************
|
|
* Included Files
|
|
************************************************************/
|
|
|
|
#include <sys/types.h>
|
|
#include <wdog.h>
|
|
#include <nuttx/compiler.h>
|
|
|
|
/************************************************************
|
|
* Compilations Switches
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Definitions
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
* Public Type Declarations
|
|
************************************************************/
|
|
|
|
/* This is the watchdog structure. The WDOG_ID is a pointer to
|
|
* a watchdog structure.
|
|
*/
|
|
|
|
struct wdog_s
|
|
{
|
|
struct wdog_s *next; /* Support for singly linked lists. */
|
|
wdentry_t func; /* Function to execute when delay expires */
|
|
sint32 lag; /* Timer associated with the delay */
|
|
uint32 parm[4]; /* Four parameters passed to func */
|
|
boolean active; /* TRUE if the watchdog is actively timing */
|
|
};
|
|
|
|
typedef struct wdog_s wdog_t;
|
|
typedef struct wdog_s *WDOG_ID;
|
|
|
|
/************************************************************
|
|
* Public Variables
|
|
************************************************************/
|
|
|
|
/* The g_wdfreelist data structure is a singly linked list
|
|
* of watchdogs available to the system for delayed function
|
|
* use.
|
|
*/
|
|
|
|
extern sq_queue_t g_wdfreelist;
|
|
|
|
/* g_wdpool is a pointer to a list of pre-allocated watchdogs.
|
|
* The number of watchdogs in the pool is a configuration
|
|
* item.
|
|
*/
|
|
|
|
extern wdog_t *g_wdpool;
|
|
|
|
/* The g_wdactivelist data structure is a singly linked list
|
|
* ordered by watchdog expiration time. When watchdog timers
|
|
* expire,the functions on this linked list are removed and
|
|
* the function is called.
|
|
*/
|
|
|
|
extern sq_queue_t g_wdactivelist;
|
|
|
|
/************************************************************
|
|
* Public Function Prototypes
|
|
************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C" {
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
EXTERN void weak_function wd_initialize(void);
|
|
EXTERN void weak_function wd_timer(void);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __WD_INTERNAL_H */
|
|
|