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116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Copyright (C) 2015 Daniel Krebs
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* 2016 INRIA
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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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* @ingroup net_gnrc_lwmac
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* @{
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*
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* @file
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* @brief Header definition LWMAC
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* @internal
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* @author Daniel Krebs <github@daniel-krebs.net>
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* @author Shuguo Zhuo <shuguo.zhuo@inria.fr>
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*/
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#ifndef NET_GNRC_LWMAC_HDR_H
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#define NET_GNRC_LWMAC_HDR_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "net/ieee802154.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief LWMAC WR (wake-up request packet, i.e., preamble packet) frame type
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*/
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#define GNRC_LWMAC_FRAMETYPE_WR (0x01U)
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/**
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* @brief LWMAC WA (wake-up answer packet, i.e., preamble-ACK packet) frame type
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*/
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#define GNRC_LWMAC_FRAMETYPE_WA (0x02U)
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/**
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* @brief LWMAC data frame type
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*/
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#define GNRC_LWMAC_FRAMETYPE_DATA (0x03U)
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/**
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* @brief LWMAC data frame type with pending data transmission request
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*/
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#define GNRC_LWMAC_FRAMETYPE_DATA_PENDING (0x04U)
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/**
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* @brief LWMAC broadcast frame type
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*/
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#define GNRC_LWMAC_FRAMETYPE_BROADCAST (0x05U)
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/**
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* @brief LWMAC internal L2 address structure
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*/
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typedef struct {
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uint8_t addr[IEEE802154_LONG_ADDRESS_LEN]; /**< address of node */
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uint8_t len; /**< address */
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} gnrc_lwmac_l2_addr_t;
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/**
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* @brief Static initializer for l2_addr_t.
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*/
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#define GNRC_LWMAC_L2_ADDR_INITIAL { { 0 }, 0 }
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/**
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* @brief LWMAC header
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*/
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typedef struct {
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uint8_t type; /**< type of frame */
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} gnrc_lwmac_hdr_t;
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/**
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* @brief LWMAC WR (wake-up request packet, i.e., preamble packet) frame
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*/
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typedef struct __attribute__((packed)) {
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gnrc_lwmac_hdr_t header; /**< WR packet header type */
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gnrc_lwmac_l2_addr_t dst_addr; /**< WR is broadcast, so destination address needed */
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} gnrc_lwmac_frame_wr_t;
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/**
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* @brief LWMAC WA (wake-up answer packet, i.e., preamble-ACK packet) frame
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*/
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typedef struct __attribute__((packed)) {
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gnrc_lwmac_hdr_t header; /**< WA packet header type */
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gnrc_lwmac_l2_addr_t dst_addr; /**< WA is broadcast, so destination address needed */
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uint32_t current_phase; /**< Node's current phase value */
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} gnrc_lwmac_frame_wa_t;
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/**
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* @brief LWMAC broadcast data frame
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*/
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typedef struct __attribute__((packed)) {
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gnrc_lwmac_hdr_t header; /**< Broadcast packet header type */
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uint8_t seq_nr; /**< Broadcast sequence */
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} gnrc_lwmac_frame_broadcast_t;
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/**
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* @brief LWMAC unicast data frame
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*/
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typedef struct __attribute__((packed)) {
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gnrc_lwmac_hdr_t header; /**< Data packet header type */
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} gnrc_lwmac_frame_data_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* NET_GNRC_LWMAC_HDR_H */
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/** @} */
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