nimble_netif_conn.h

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/*
 * Copyright (C) 2018-2019 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
#include <stdbool.h>
 
#include "nimble_netif.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define NIMBLE_NETIF_CONN_INVALID       (-1)

typedef struct {
    struct ble_l2cap_chan *coc;     
    uint16_t gaphandle;             
    uint16_t itvl;                  
    uint16_t state;                 
    uint8_t addr[BLE_ADDR_LEN];     
} nimble_netif_conn_t;

typedef int (*nimble_netif_conn_iter_t)(nimble_netif_conn_t *conn,
                                        int handle, void *arg);

void nimble_netif_conn_init(void);

nimble_netif_conn_t *nimble_netif_conn_get(int handle);

int nimble_netif_conn_get_adv(void);

int nimble_netif_conn_get_connecting(void);

int nimble_netif_conn_get_by_addr(const uint8_t *addr);

int nimble_netif_conn_get_by_gaphandle(uint16_t gaphandle);

void nimble_netif_conn_foreach(uint16_t filter,
                               nimble_netif_conn_iter_t cb, void *arg);

int nimble_netif_conn_get_next(int handle, uint16_t filter);

 
unsigned nimble_netif_conn_count(uint16_t filter);

int nimble_netif_conn_start_connection(const uint8_t *addr);

int nimble_netif_conn_start_adv(void);

void nimble_netif_conn_free(int handle, uint8_t *addr);

uint16_t nimble_netif_conn_get_itvl_ms(int handle);

bool nimble_netif_conn_itvl_used(uint16_t itvl, int skip_handle);

uint16_t nimble_netif_conn_gen_itvl(uint16_t min, uint16_t max);

static inline
nimble_netif_conn_t *nimble_netif_conn_from_gaphandle(uint16_t gh)
{
    return nimble_netif_conn_get(nimble_netif_conn_get_by_gaphandle(gh));
}

static inline int nimble_netif_conn_connecting(void)
{
    return (nimble_netif_conn_get_connecting() != NIMBLE_NETIF_CONN_INVALID);
}

static inline int nimble_netif_conn_connected(const uint8_t *addr)
{
    return (nimble_netif_conn_get_by_addr(addr) != NIMBLE_NETIF_CONN_INVALID);
}

static inline int nimble_netif_conn_is_open(const nimble_netif_conn_t *conn)
{
    return (conn->coc != NULL);
}

static inline int nimble_netif_conn_is_adv(void)
{
    return (nimble_netif_conn_get_adv() != NIMBLE_NETIF_CONN_INVALID);
}
 
#ifdef __cplusplus
}
#endif