| /************************************************************************ |
| * sched/d_internal.h |
| * |
| * Copyright (C) 2007, 2009 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 NuttX 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 __SCHED_WD_INTERNAL_H |
| #define __SCHED_WD_INTERNAL_H |
| |
| /************************************************************************ |
| * Included Files |
| ************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include <stdint.h> |
| #include <stdbool.h> |
| #include <wdog.h> |
| #include <nuttx/compiler.h> |
| |
| /************************************************************************ |
| * Pre-processor Definitions |
| ************************************************************************/ |
| |
| /************************************************************************ |
| * Public Type Declarations |
| ************************************************************************/ |
| |
| /* This is the watchdog structure. The WDOG_ID is a pointer to |
| * a watchdog structure. |
| */ |
| |
| struct wdog_s |
| { |
| FAR struct wdog_s *next; /* Support for singly linked lists. */ |
| wdentry_t func; /* Function to execute when delay expires */ |
| #ifdef CONFIG_PIC |
| FAR void *picbase; /* PIC base address */ |
| #endif |
| int lag; /* Timer associated with the delay */ |
| bool active; /* true if the watchdog is actively timing */ |
| uint8_t argc; /* The number of parameters to pass */ |
| uint32_t parm[CONFIG_MAX_WDOGPARMS]; |
| }; |
| typedef struct wdog_s wdog_t; |
| |
| /************************************************************************ |
| * 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 FAR 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 /* __SCHED_WD_INTERNAL_H */ |
