adv.h

/*  Bluetooth Mesh */
 
/*
 * Copyright (c) 2017 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef __ADV_H__
#define __ADV_H__
 
/* Maximum advertising data payload for a single data type */
#include "../include/mesh/mesh.h"
 
#define BT_MESH_ADV(om) (*(struct bt_mesh_adv **) OS_MBUF_USRHDR(om))
 
#define BT_MESH_ADV_SCAN_UNIT(_ms) ((_ms) * 8 / 5)
#define BT_MESH_SCAN_INTERVAL_MS 30
#define BT_MESH_SCAN_WINDOW_MS   30
 
#define BT_MESH_ADV_DATA_SIZE 31
 
/* The user data is a pointer (4 bytes) to struct bt_mesh_adv */
#define BT_MESH_ADV_USER_DATA_SIZE 4
 
#define BT_MESH_MBUF_HEADER_SIZE (sizeof(struct os_mbuf_pkthdr) + \
                                    BT_MESH_ADV_USER_DATA_SIZE +\
                    sizeof(struct os_mbuf))
 
/* We declare it as extern here to share it between 'adv' and 'adv_legacy' */
extern struct os_mbuf_pool adv_os_mbuf_pool;
extern struct ble_npl_eventq bt_mesh_adv_queue;
extern struct os_mempool adv_buf_mempool;
extern os_membuf_t adv_buf_mem[];
 
enum bt_mesh_adv_type
{
    BT_MESH_ADV_PROV,
    BT_MESH_ADV_DATA,
    BT_MESH_ADV_BEACON,
    BT_MESH_ADV_URI,
 
    BT_MESH_ADV_TYPES,
};
 
typedef void (*bt_mesh_adv_func_t)(struct os_mbuf *buf, uint16_t duration,
                   int err, void *user_data);
 
 
static inline void adv_send_start(uint16_t duration, int err,
                  const struct bt_mesh_send_cb *cb,
                    void *cb_data)
{
    if (cb && cb->start) {
        cb->start(duration, err, cb_data);
    }
}
 
struct bt_mesh_adv {
    struct os_mbuf *frags;
 
    const struct bt_mesh_send_cb *cb;
    void *cb_data;
 
    uint8_t      type:2,
             started:1,
             busy:1;
 
    uint8_t      xmit;
 
    uint8_t flags;
 
    int ref_cnt;
    struct ble_npl_event ev;
};
 
typedef struct bt_mesh_adv *(*bt_mesh_adv_alloc_t)(int id);
 
/* xmit_count: Number of retransmissions, i.e. 0 == 1 transmission */
struct os_mbuf *bt_mesh_adv_create(enum bt_mesh_adv_type type, uint8_t xmit,
                   int32_t timeout);
 
struct os_mbuf *bt_mesh_adv_create_from_pool(struct os_mbuf_pool *pool,
                         bt_mesh_adv_alloc_t get_id,
                         enum bt_mesh_adv_type type,
                         uint8_t xmit, int32_t timeout);
 
void bt_mesh_adv_send(struct os_mbuf *buf, const struct bt_mesh_send_cb *cb,
              void *cb_data);
 
void bt_mesh_adv_update(void);
 
void bt_mesh_adv_init(void);
 
int bt_mesh_scan_enable(void);
 
int bt_mesh_scan_disable(void);
int bt_mesh_adv_enable(void);
 
void bt_mesh_adv_buf_ready(void);
 
int bt_mesh_adv_start(const struct ble_gap_adv_params *param, int32_t duration,
              const struct bt_data *ad, size_t ad_len,
              const struct bt_data *sd, size_t sd_len);
 
static inline void bt_mesh_adv_send_start(uint16_t duration, int err,
                      struct bt_mesh_adv *adv)
{
    if (!adv->started) {
        adv->started = 1;
 
        if (adv->cb && adv->cb->start) {
            adv->cb->start(duration, err, adv->cb_data);
        }
 
        if (err) {
            adv->cb = NULL;
        }
    }
}
 
static inline void bt_mesh_adv_send_end(
    int err, struct bt_mesh_adv const *adv)
{
    if (adv->started && adv->cb && adv->cb->end) {
        adv->cb->end(err, adv->cb_data);
    }
}
int ble_adv_gap_mesh_cb(struct ble_gap_event *event, void *arg);
#endif