792dfd4a04
SyncReceiptTime should use an ExtendedTimestamp (with fractional nanoseconds precision). Add a struct with the definition of the needed type and convert that variable. The struct representing the ExtendedTimestamp is named net_ptp_extended_time to keep consistency with the existing net_ptp_time which is used for regular PTP timestamps. See 802.1AS-2011 chapters 10.2.3.4 and 6.3.3.5 for more reference. Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
118 lines
2.1 KiB
C
118 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2018 Intel Corporation.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief Public functions for the Precision Time Protocol time specification.
|
|
*
|
|
*/
|
|
|
|
#ifndef ZEPHYR_INCLUDE_NET_PTP_TIME_H_
|
|
#define ZEPHYR_INCLUDE_NET_PTP_TIME_H_
|
|
|
|
/**
|
|
* @brief Precision Time Protocol time specification
|
|
* @defgroup ptp_time PTP time
|
|
* @ingroup networking
|
|
* @{
|
|
*/
|
|
|
|
#include <net/net_core.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @brief Precision Time Protocol Timestamp format.
|
|
*
|
|
* This structure represents a timestamp according
|
|
* to the Precision Time Protocol standard.
|
|
*
|
|
* Seconds are encoded as a 48 bits unsigned integer.
|
|
* Nanoseconds are encoded as a 32 bits unsigned integer.
|
|
*/
|
|
struct net_ptp_time {
|
|
/** Seconds encoded on 48 bits. */
|
|
union {
|
|
struct {
|
|
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
|
u32_t low;
|
|
u16_t high;
|
|
u16_t unused;
|
|
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
|
|
u16_t unused;
|
|
u16_t high;
|
|
u32_t low;
|
|
#else
|
|
#error "Unknown byte order"
|
|
#endif
|
|
} _sec;
|
|
u64_t second;
|
|
};
|
|
|
|
/** Nanoseconds. */
|
|
u32_t nanosecond;
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* @brief Precision Time Protocol Extended Timestamp format.
|
|
*
|
|
* This structure represents an extended timestamp according
|
|
* to the Precision Time Protocol standard.
|
|
*
|
|
* Seconds are encoded as 48 bits unsigned integer.
|
|
* Fractional nanoseconds are encoded as 48 bits, their unit
|
|
* is 2*(-16) ns.
|
|
*/
|
|
struct net_ptp_extended_time {
|
|
/** Seconds encoded on 48 bits. */
|
|
union {
|
|
struct {
|
|
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
|
u32_t low;
|
|
u16_t high;
|
|
u16_t unused;
|
|
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
|
|
u16_t unused;
|
|
u16_t high;
|
|
u32_t low;
|
|
#else
|
|
#error "Unknown byte order"
|
|
#endif
|
|
} _sec;
|
|
u64_t second;
|
|
};
|
|
|
|
/** Fractional nanoseconds on 48 bits. */
|
|
union {
|
|
struct {
|
|
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
|
u32_t low;
|
|
u16_t high;
|
|
u16_t unused;
|
|
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
|
|
u16_t unused;
|
|
u16_t high;
|
|
u32_t low;
|
|
#else
|
|
#error "Unknown byte order"
|
|
#endif
|
|
} _fns;
|
|
u64_t fract_nsecond;
|
|
};
|
|
} __packed;
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* ZEPHYR_INCLUDE_NET_PTP_TIME_H_ */
|