RTEMS
6.1-rc7
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bsps
sparc
leon3
include
bsp
watchdog.h
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/* SPDX-License-Identifier: BSD-2-Clause */
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/* watchdog.h
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*
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* The LEON3 BSP timer watch-dog interface
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*
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* COPYRIGHT (c) 2012.
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* Cobham Gaisler AB.
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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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* 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 the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN 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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#ifndef __WATCHDOG_H__
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#define __WATCHDOG_H__
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/* Initialize BSP watchdog routines. Returns number of watchdog timers found.
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* Currently only one is supported.
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*/
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int
bsp_watchdog_init(
void
);
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/* Reload watchdog (last timer on the first GPTIMER core), all systems does not
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* feature a watchdog, it is expected that if this function is called the
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* user knows that there is a watchdog available.
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*
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* The prescaler is normally set to number of MHz of system, this is to
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* make the system clock tick be stable.
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*
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* Arguments
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* watchdog - Always 0 for now
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* reload_value - Number of timer clocks (after prescaler) to count before
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* watchdog is woken.
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*/
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void
bsp_watchdog_reload(
int
watchdog,
unsigned
int
reload_value);
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/* Stop watchdog timer */
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void
bsp_watchdog_stop(
int
watchdog);
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/* Use watchdog0 timer to reset the system */
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void
bsp_watchdog_system_reset(
void
);
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#ifdef __cplusplus
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}
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#endif
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#endif
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