122 lines
4.2 KiB
C
122 lines
4.2 KiB
C
/************************************************************************
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* sched/d_internal.h
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*
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* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************/
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#ifndef __SCHED_WD_INTERNAL_H
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#define __SCHED_WD_INTERNAL_H
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/************************************************************************
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* Included Files
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************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <wdog.h>
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#include <nuttx/compiler.h>
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/************************************************************************
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* Pre-processor Definitions
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************************************************************************/
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/************************************************************************
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* Public Type Declarations
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************************************************************************/
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/* This is the watchdog structure. The WDOG_ID is a pointer to
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* a watchdog structure.
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*/
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struct wdog_s
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{
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FAR struct wdog_s *next; /* Support for singly linked lists. */
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wdentry_t func; /* Function to execute when delay expires */
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#ifdef CONFIG_PIC
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FAR void *picbase; /* PIC base address */
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#endif
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int lag; /* Timer associated with the delay */
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bool active; /* true if the watchdog is actively timing */
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uint8_t argc; /* The number of parameters to pass */
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uint32_t parm[CONFIG_MAX_WDOGPARMS];
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};
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typedef struct wdog_s wdog_t;
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/************************************************************************
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* Public Variables
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************************************************************************/
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/* The g_wdfreelist data structure is a singly linked list
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* of watchdogs available to the system for delayed function
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* use.
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*/
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extern sq_queue_t g_wdfreelist;
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/* g_wdpool is a pointer to a list of pre-allocated watchdogs.
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* The number of watchdogs in the pool is a configuration
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* item.
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*/
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extern FAR wdog_t *g_wdpool;
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/* The g_wdactivelist data structure is a singly linked list
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* ordered by watchdog expiration time. When watchdog timers
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* expire,the functions on this linked list are removed and
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* the function is called.
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*/
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extern sq_queue_t g_wdactivelist;
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/************************************************************************
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* Public Function Prototypes
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************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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EXTERN void weak_function wd_initialize(void);
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EXTERN void weak_function wd_timer(void);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SCHED_WD_INTERNAL_H */
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