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author | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
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committer | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
commit | 8a365179eafdf3aea98e60ab9f5882b200d4c759 (patch) | |
tree | 4f38d6d4cd80bd0b6e22e2bb534c3f117ce44e56 /nuttx/sched/wd_internal.h | |
download | px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.gz px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.bz2 px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.zip |
Fresh import of the PX4 firmware sources.
Diffstat (limited to 'nuttx/sched/wd_internal.h')
-rw-r--r-- | nuttx/sched/wd_internal.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/nuttx/sched/wd_internal.h b/nuttx/sched/wd_internal.h new file mode 100644 index 000000000..e63a8bdae --- /dev/null +++ b/nuttx/sched/wd_internal.h @@ -0,0 +1,119 @@ +/************************************************************************ + * sched/d_internal.h + * + * Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 */ |