47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
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/*
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* Copyright (c) 2017 Linaro Limited
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __SNTP_PKT_H
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#define __SNTP_PKT_H
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#include <zephyr/types.h>
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#define LI_MASK 0xC0
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#define VN_MASK 0x38
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#define MODE_MASK 0x07
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#define LI_SHIFT 6
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#define VN_SHIFT 3
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#define MODE_SHIFT 0
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#define LVM_GET_LI(x) ((x & LI_MASK) >> LI_SHIFT)
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#define LVM_GET_VN(x) ((x & VN_MASK) >> VN_SHIFT)
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#define LVM_GET_MODE(x) ((x & MODE_MASK) >> MODE_SHIFT)
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#define LVM_SET_LI(x, v) (x = x | (v << LI_SHIFT))
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#define LVM_SET_VN(x, v) (x = x | (v << VN_SHIFT))
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#define LVM_SET_MODE(x, v) (x = x | (v << MODE_SHIFT))
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struct sntp_pkt {
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u8_t lvm; /* li, vn, and mode in big endian fashion */
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u8_t stratum;
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u8_t poll;
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u8_t precision;
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u32_t root_delay;
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u32_t root_dispersion;
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u32_t ref_id;
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u32_t ref_tm_s;
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u32_t ref_tm_f;
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u32_t orig_tm_s; /* Originate timestamp seconds */
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u32_t orig_tm_f; /* Originate timsstamp seconds fraction */
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u32_t rx_tm_s; /* Receive timestamp seconds */
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u32_t rx_tm_f; /* Receive timestamp seconds fraction */
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u32_t tx_tm_s; /* Transimit timestamp seconds */
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u32_t tx_tm_f; /* Transimit timestamp seconds fraction */
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} __packed;
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#endif
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