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0b8f5a3a6c
Currently, we need to have #ifdefs everywhere watchdog_reload() is called. With this fix we don't. Also don't bother including unused hardware timer watchdog code if the watchdog isn't defined. No change when CONFIG_WATCHDOG is defined (which it is for all normal builds). BUG=chrome-os-partner:20056 BRANCH=none TEST=build all platforms with CONFIG_WATCHDOG commented out in config.h Change-Id: Id3ce33af1a497eda127a4892e13651d9d2534d92 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/58094 Reviewed-by: Simon Glass <sjg@chromium.org>
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Watchdog driver */
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#ifndef __CROS_EC_WATCHDOG_H
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#define __CROS_EC_WATCHDOG_H
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/* Watchdog period in ms; must be at least twice HOOK_TICK_INTERVAL */
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#define WATCHDOG_PERIOD_MS 1100
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/**
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* Initialize the watchdog.
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*
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* This will cause the CPU to reboot if it has been more than 2 watchdog
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* periods since watchdog_reload() has been called.
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*/
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int watchdog_init(void);
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/**
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* Display a trace with information about an expired watchdog timer
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*
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* This shows the location in the code where the expiration happened.
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* Usually this helps locate a loop which is blocking execution of the
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* watchdog task.
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*
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* @param excep_lr Value of lr to indicate caller return
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* @param excep_sp Value of sp to indicate caller task id
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*/
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void watchdog_trace(uint32_t excep_lr, uint32_t excep_sp);
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/* Reload the watchdog counter */
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#ifdef CONFIG_WATCHDOG
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void watchdog_reload(void);
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#else
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static inline void watchdog_reload(void) { }
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#endif
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#endif /* __CROS_EC_WATCHDOG_H */
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