1 /* 2 * Copyright (c) 2017 Linaro Limited 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef __SNTP_PKT_H 8 #define __SNTP_PKT_H 9 10 #include <zephyr/types.h> 11 12 #define SNTP_LI_MASK 0xC0 13 #define SNTP_VN_MASK 0x38 14 #define SNTP_MODE_MASK 0x07 15 16 #define SNTP_LI_SHIFT 6 17 #define SNTP_VN_SHIFT 3 18 #define SNTP_MODE_SHIFT 0 19 20 #define SNTP_GET_LI(x) ((x & SNTP_LI_MASK) >> SNTP_LI_SHIFT) 21 #define SNTP_GET_VN(x) ((x & SNTP_VN_MASK) >> SNTP_VN_SHIFT) 22 #define SNTP_GET_MODE(x) ((x & SNTP_MODE_MASK) >> SNTP_MODE_SHIFT) 23 24 #define SNTP_SET_LI(x, v) (x = x | (v << SNTP_LI_SHIFT)) 25 #define SNTP_SET_VN(x, v) (x = x | (v << SNTP_VN_SHIFT)) 26 #define SNTP_SET_MODE(x, v) (x = x | (v << SNTP_MODE_SHIFT)) 27 28 struct sntp_pkt { 29 uint8_t lvm; /* li, vn, and mode in big endian fashion */ 30 uint8_t stratum; 31 uint8_t poll; 32 uint8_t precision; 33 uint32_t root_delay; 34 uint32_t root_dispersion; 35 uint32_t ref_id; 36 uint32_t ref_tm_s; 37 uint32_t ref_tm_f; 38 uint32_t orig_tm_s; /* Originate timestamp seconds */ 39 uint32_t orig_tm_f; /* Originate timestamp seconds fraction */ 40 uint32_t rx_tm_s; /* Receive timestamp seconds */ 41 uint32_t rx_tm_f; /* Receive timestamp seconds fraction */ 42 uint32_t tx_tm_s; /* Transmit timestamp seconds */ 43 uint32_t tx_tm_f; /* Transmit timestamp seconds fraction */ 44 } __packed; 45 46 #endif 47
