Import Mbed OS hard-float snapshot

connectivity/nanostack/sal-stack-nanostack/source/6LoWPAN/ws/ws_pae_time.h

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+/*
+ * Copyright (c) 2020, 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 WS_PAE_TIME_H_
+#define WS_PAE_TIME_H_
+
+/*
+ * Port access entity time functions.
+ *
+ */
+
+typedef enum {
+    TIME_FORMAT_SECONDS = 0,
+    TIME_FORMAT_MINUTES,
+    TIME_FORMAT_HOURS,
+    TIME_FORMAT_DAYS,
+} time_format_t;
+
+#define STIME_TIME_BITS             14
+#define STIME_TIME_MAX              0x3FFF
+#define STIME_TIME_MASK             STIME_TIME_MAX
+
+#define STIME_FORMAT_GET(stime) (stime >> STIME_TIME_BITS)
+#define STIME_TIME_GET(stime) (stime & STIME_TIME_MASK)
+
+// Maximum difference in stored and indicated system time
+#define SYSTEM_TIME_MAXIMUM_DIFF   (60 * 60 * 24 * 30 * 12)
+
+/**
+ * ws_pae_time_to_short_convert convert time to short format
+ *
+ * \param time time in seconds to convert
+ *
+ * \return < 0 failure
+ * \return >= 0 success
+ *
+ */
+uint16_t ws_pae_time_to_short_convert(uint32_t time);
+
+/**
+ * ws_pae_time_from_short_convert convert short time to time format
+ *
+ * \param short_time short_time to convert
+ *
+ * \return time in seconds
+ *
+ */
+uint32_t ws_pae_time_from_short_convert(uint16_t short_time);
+
+/**
+ * ws_pae_time_from_short_time_compare compare two times in short format
+ *
+ * \param short_time1 time 1 to compare
+ * \param short_time1 time 2 to compare
+ *
+ * \return true times are equal
+ * \return false times are not equal
+ *
+ */
+bool ws_pae_time_from_short_time_compare(uint16_t short_time1, uint16_t short_time2);
+
+/**
+ * ws_pae_time_diff_calc calculates difference between two times
+ *
+ * \param curr_time current time
+ * \param comp_time time which is compared
+ * \param time_diff returns time difference
+ * \param future compared time should in future
+ *
+ * \return < 0 failure
+ * \return >= 0 success
+ *
+ */
+int8_t ws_pae_time_diff_calc(uint64_t curr_time, uint64_t comp_time, uint32_t *time_diff, bool future);
+
+/**
+ * ws_pae_current_time_get gets current time
+ *
+ * \return current time in seconds after 1970
+ *
+ */
+uint64_t ws_pae_current_time_get(void);
+
+/**
+ * ws_pae_current_time_get updates current time
+ *
+ * \param seconds seconds to be added to current time
+ *
+ */
+void ws_pae_current_time_update(uint16_t seconds);
+
+/**
+ * ws_pae_current_time_set sets current time
+ *
+ * \param time new time
+ *
+ * \return < 0 failure
+ * \return >= 0 success
+ */
+int8_t ws_pae_current_time_set(uint64_t time);
+
+#endif /* WS_PAE_KEY_STORAGE_H_ */