Import Mbed OS hard-float snapshot

TESTS/mbed_hal/watchdog_timing/watchdog_timing_tests.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.
+ */
+
+/**
+ * @addtogroup hal_watchdog_tests
+ * @{
+ */
+
+#ifndef MBED_HAL_WATCHDOG_TIMING_TESTS_H
+#define MBED_HAL_WATCHDOG_TIMING_TESTS_H
+
+#if DEVICE_WATCHDOG
+
+/** Test watchdog timing accuracy
+ *
+ * Phase 1.
+ * Given a watchdog timer started with a timeout value of X ms,
+ * when the time of X ms elapses,
+ * then the device is restarted by the watchdog.
+ *
+ * Phase 2.
+ * Given a device restarted by the watchdog timer,
+ * when the device receives time measurement T from the host,
+ * then X <= T < 2 * X.
+ */
+template<uint32_t timeout_ms, uint32_t delta_ms>
+void test_timing();
+
+/** Test Watchdog timeout
+ *
+ * Given a device with a Watchdog started,
+ * when the Watchdog timeout doesn't expire,
+ * then the device restart is not performed.
+ * When the Watchdog timeout does expire,
+ * then the device is restarted after the timeout and before twice the timeout value.
+ */
+void test_timeout_lower_limit();
+
+#endif
+
+#endif
+
+/** @}*/
+