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78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
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/*
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* Copyright (C) 2018 Gunar Schorcht
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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 cpu_esp32_esp_now
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* @{
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*
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* @file
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* @brief Netdev interface for the ESP-NOW WiFi P2P protocol
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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*/
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#ifndef ESP_NOW_NETDEV_H
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#define ESP_NOW_NETDEV_H
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#include "net/netdev.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 Maximum packet size that can be used with ESP-NOW
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*/
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#define ESP_NOW_MAX_SIZE (250)
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/**
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* @brief Length of ESP-NOW addresses
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*/
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#define ESP_NOW_ADDR_LEN ETHERNET_ADDR_LEN
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/**
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* @brief Reference to the netdev device driver struct
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*/
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extern const netdev_driver_t esp_now_driver;
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/**
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* @brief Device descriptor for ESP-NOW devices
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*/
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typedef struct
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{
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netdev_t netdev; /**< netdev parent struct */
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uint8_t addr[ESP_NOW_ADDR_LEN]; /**< device addr (MAC address) */
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uint8_t rx_len; /**< number of bytes received */
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uint8_t rx_buf[ESP_NOW_MAX_SIZE]; /**< receive buffer */
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uint8_t rx_mac[ESP_NOW_ADDR_LEN]; /**< source address */
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uint8_t tx_len; /**< number of bytes in transmit buffer */
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uint8_t tx_buf[ESP_NOW_MAX_SIZE]; /**< transmit buffer */
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gnrc_netif_t* netif; /**< reference to the corresponding netif */
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#ifdef MODULE_GNRC
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gnrc_nettype_t proto; /**< protocol for upper layer */
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#endif
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uint8_t peers_all; /**< number of peers reachable */
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uint8_t peers_enc; /**< number of encrypted peers */
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mutex_t dev_lock; /**< device is already in use */
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} esp_now_netdev_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* ESP_NOW_NETDEV_H */
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/** @} */
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