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Remove watchdog manager 

Use VirtualWatchdog instead
pull/10857/head
Martin Kojtal 2019-06-27 12:38:14 +01:00
parent edd857ea9c
commit 737335c357
2 changed files with 0 additions and 206 deletions
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109
platform/mbed_watchdog_mgr.cpp
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@ -1,109 +0,0 @@
/*
* Copyright (c) 2018-2019 Arm Limited and affiliates.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef DEVICE_WATCHDOG
#include "mbed_watchdog_mgr.h"
static bool is_watchdog_started = false; //boolean to control watchdog start and stop
#define MS_TO_US(x) ((x) * 1000) //macro to convert millisecond to microsecond
static uint32_t elapsed_ms = (HW_WATCHDOG_TIMEOUT / 2);
MBED_STATIC_ASSERT((HW_WATCHDOG_TIMEOUT > 0), "Timeout must be greater than zero");
#if DEVICE_LPTICKER
/** Create singleton instance of LowPowerTicker for watchdog periodic call back of kick.
*/
static SingletonPtr<mbed::LowPowerTicker> _ticker;
#else
/** Create singleton instance of Ticker for watchdog periodic call back of kick.
*/
static SingletonPtr<mbed::Ticker> _ticker;
#endif
/** Refreshes the watchdog timer.
*
* This function should be called periodically before the watchdog times out.
* Otherwise, the system is reset.
*
* If the watchdog timer is not currently running this function does nothing
*/
static void mbed_wdog_manager_kick()
{
core_util_critical_section_enter();
hal_watchdog_kick();
// mbed watchdog manager will access the watchdog process method to verify
// all registered users/threads in alive state */
mbed::Watchdog::process(((elapsed_ms <= 0) ? 1 : elapsed_ms));
core_util_critical_section_exit();
}
uint32_t mbed_wdog_manager_get_max_timeout()
{
const watchdog_features_t features = hal_watchdog_get_platform_features();
return features.max_timeout;
}
bool mbed_wdog_manager_start()
{
watchdog_status_t sts;
MBED_ASSERT(HW_WATCHDOG_TIMEOUT < mbed_wdog_manager_get_max_timeout());
core_util_critical_section_enter();
if (is_watchdog_started) {
core_util_critical_section_exit();
return false;
}
watchdog_config_t config;
config.timeout_ms = HW_WATCHDOG_TIMEOUT;
sts = hal_watchdog_init(&config);
if (sts == WATCHDOG_STATUS_OK) {
is_watchdog_started = true;
}
core_util_critical_section_exit();
if (is_watchdog_started) {
us_timestamp_t timeout = (MS_TO_US(((elapsed_ms <= 0) ? 1 : elapsed_ms)));
_ticker->attach_us(mbed::callback(&mbed_wdog_manager_kick), timeout);
}
return is_watchdog_started;
}
bool mbed_wdog_manager_stop()
{
watchdog_status_t sts;
bool msts = true;
core_util_critical_section_enter();
if (is_watchdog_started) {
sts = hal_watchdog_stop();
if (sts != WATCHDOG_STATUS_OK) {
msts = false;
} else {
_ticker->detach();
is_watchdog_started = false;
}
} else {
msts = false;
}
core_util_critical_section_exit();
return msts;
}
uint32_t mbed_wdog_manager_get_timeout()
{
return hal_watchdog_get_reload_value();
}
#endif // DEVICE_WATCHDOG

97
platform/mbed_watchdog_mgr.h
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/*
* Copyright (c) 2018-2019 Arm Limited and affiliates.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBED_WATCHDOG_MGR_H
#define MBED_WATCHDOG_MGR_H
#ifdef DEVICE_WATCHDOG
#include "watchdog_api.h"
#include "mbed_error.h"
#include "platform/Callback.h"
#include "platform/mbed_critical.h"
#include "platform/SingletonPtr.h"
#if DEVICE_LPTICKER
#include "LowPowerTicker.h"
#else
#include "Ticker.h"
#endif
#include "Watchdog.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \addtogroup platform */
/** A system timer that will reset the system in the case of system failures or
* malfunctions.
*
* Example:
* @code
*
* mbed_wdog_manager_start();
*
* while (true) {
* wait(0.3);
*
* }
* @endcode
* @ingroup platform
*/
/** Start an independent watchdog timer
*
*
* @return status true if the watchdog timer was started
* successfully. assert if one of the input parameters is out of range for the current platform.
* false if watchdog timer was not started
*/
bool mbed_wdog_manager_start();
/** Stops the watchdog timer
*
* Calling this function will attempt to disable any currently running
* watchdog timers if supported by the current platform.
*
* @return Returns true if the watchdog timer was successfully
* stopped, Returns false if the watchdog cannot be disabled
* on the current platform or if the timer was never started.
*/
bool mbed_wdog_manager_stop();
/** Get the watchdog timer refresh value
*
* This function returns the refresh timeout of the watchdog timer.
*
* @return Reload value for the watchdog timer in milliseconds.
*/
uint32_t mbed_wdog_manager_get_timeout();
/** Get the maximum refresh value for the current platform in milliseconds
*
* @return Maximum refresh value supported by the watchdog for the current
* platform in milliseconds
*/
uint32_t mbed_wdog_manager_get_max_timeout();
#ifdef __cplusplus
}
#endif
#endif // DEVICE_WATCHDOG
#endif // MBED_WATCHDOG_H