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105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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* Copyright (C) 2016 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup net_zep ZigBee Encapsulation Protocol
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* @ingroup net
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* @brief Provides definitions for the ZigBee Encapsulation Protocol (ZEP)
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*
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* @{
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*
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* @file
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* @brief Definitions for the ZigBee Encapsulation Protocol
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*
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* @author Martine Lenders <m.lenders@fu-berlin.de>
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*/
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#ifndef NET_ZEP_H
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#define NET_ZEP_H
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#include <stdint.h>
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#include "byteorder.h"
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#include "net/ntp_packet.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ZEP_PORT_DEFAULT (17754) /**< default ZEP port */
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/**
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* @brief Type == Data for ZEPv2 header
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*/
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#define ZEP_V2_TYPE_DATA (1)
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/**
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* @brief Type == Ack for ZEPv2 header
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*/
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#define ZEP_V2_TYPE_ACK (2)
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/**
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* @brief Mask for length field
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*/
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#define ZEP_LENGTH_MASK (0x7f)
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/**
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* @brief ZEP header definition
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*/
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typedef struct __attribute__((packed)) {
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char preamble[2]; /**< Preamble code (must be "EX") */
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uint8_t version; /**< Protocol Version (must be 1 or 2) */
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} zep_hdr_t;
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/**
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* @brief ZEPv1 header definition
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* @extends zep_hdr_t
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*/
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typedef struct __attribute__((packed)) {
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zep_hdr_t hdr; /**< common header fields */
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uint8_t chan; /**< channel ID */
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network_uint16_t dev; /**< device ID */
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uint8_t lqi_mode; /**< CRC/LQI Mode (0: append LQI to frame, 1: append FCS) */
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uint8_t lqi_val; /**< LQI value */
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uint8_t resv[7]; /**< reserved field, must always be 0 */
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uint8_t length; /**< length of the frame */
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} zep_v1_hdr_t;
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/**
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* @brief ZEPv2 header definition (type == Data)
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* @extends zep_hdr_t
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*/
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typedef struct __attribute__((packed)) {
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zep_hdr_t hdr; /**< common header fields */
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uint8_t type; /**< type (must be @ref ZEP_V2_TYPE_DATA) */
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uint8_t chan; /**< channel ID */
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network_uint16_t dev; /**< device ID */
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uint8_t lqi_mode; /**< CRC/LQI Mode */
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uint8_t lqi_val; /**< LQI value */
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ntp_timestamp_t time; /**< NTP timestamp */
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network_uint32_t seq; /**< Sequence number */
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uint8_t resv[10]; /**< reserved field, must always be 0 */
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uint8_t length; /**< length of the frame */
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} zep_v2_data_hdr_t;
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/**
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* @brief ZEPv2 header definition (type == Ack)
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* @extends zep_hdr_t
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*/
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typedef struct __attribute__((packed)) {
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zep_hdr_t hdr; /**< common header fields */
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uint8_t type; /**< type (must be @ref ZEP_V2_TYPE_ACK) */
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network_uint32_t seq; /**< Sequence number */
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} zep_v2_ack_hdr_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* NET_ZEP_H */
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/** @} */
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