ptp_time.h

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/*
 * Copyright (c) 2018 Intel Corporation.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_NET_PTP_TIME_H_
#define ZEPHYR_INCLUDE_NET_PTP_TIME_H_
 
#include <zephyr/net/net_core.h>
#include <zephyr/net/net_time.h>
#include <zephyr/toolchain.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct net_ptp_time {
        union {
                struct {
#ifdef CONFIG_LITTLE_ENDIAN
                        uint32_t low;
                        uint16_t high;
                        uint16_t unused;
#else
                        uint16_t unused;
                        uint16_t high;
                        uint32_t low;
#endif
                } _sec;
                uint64_t second;
        };
 
        uint32_t nanosecond;
};
 
#ifdef __cplusplus
}
#endif
 
struct net_ptp_extended_time {
        union {
                struct {
#ifdef CONFIG_LITTLE_ENDIAN
                        uint32_t low;
                        uint16_t high;
                        uint16_t unused;
#else
                        uint16_t unused;
                        uint16_t high;
                        uint32_t low;
#endif
                } _sec;
                uint64_t second;
        };
 
        union {
                struct {
#ifdef CONFIG_LITTLE_ENDIAN
                        uint32_t low;
                        uint16_t high;
                        uint16_t unused;
#else
                        uint16_t unused;
                        uint16_t high;
                        uint32_t low;
#endif
                } _fns;
                uint64_t fract_nsecond;
        };
} __packed;
 
static inline net_time_t net_ptp_time_to_ns(struct net_ptp_time *ts)
{
        if (!ts) {
                return 0;
        }
 
        if (ts->second >= NET_TIME_SEC_MAX) {
                return NET_TIME_MAX;
        }
 
        return ((int64_t)ts->second * NSEC_PER_SEC) + ts->nanosecond;
}
 
static inline struct net_ptp_time ns_to_net_ptp_time(net_time_t nsec)
{
        struct net_ptp_time ts;
 
        __ASSERT_NO_MSG(nsec >= 0);
 
        ts.second = nsec / NSEC_PER_SEC;
        ts.nanosecond = nsec % NSEC_PER_SEC;
        return ts;
}
 
#endif /* ZEPHYR_INCLUDE_NET_PTP_TIME_H_ */