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/*
* Copyright (c) 2022 Nordic Semiconductor ASA
* Copyright (c) 2015-2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/sys/printk.h>
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/hci.h>
#define NAME_LEN 30
static void device_found(const bt_addr_le_t *addr, int8_t rssi, uint8_t type,
struct net_buf_simple *ad)
{
char addr_str[BT_ADDR_LE_STR_LEN];
bt_addr_le_to_str(addr, addr_str, sizeof(addr_str));
printk("Device found: %s (RSSI %d), type %u, AD data len %u\n",
addr_str, rssi, type, ad->len);
}
#if defined(CONFIG_BT_EXT_ADV)
static bool data_cb(struct bt_data *data, void *user_data)
{
char *name = user_data;
uint8_t len;
switch (data->type) {
case BT_DATA_NAME_SHORTENED:
case BT_DATA_NAME_COMPLETE:
len = MIN(data->data_len, NAME_LEN - 1);
(void)memcpy(name, data->data, len);
name[len] = '\0';
return false;
default:
return true;
}
}
static const char *phy2str(uint8_t phy)
{
switch (phy) {
case BT_GAP_LE_PHY_NONE: return "No packets";
case BT_GAP_LE_PHY_1M: return "LE 1M";
case BT_GAP_LE_PHY_2M: return "LE 2M";
case BT_GAP_LE_PHY_CODED: return "LE Coded";
default: return "Unknown";
}
}
static void scan_recv(const struct bt_le_scan_recv_info *info,
struct net_buf_simple *buf)
{
char le_addr[BT_ADDR_LE_STR_LEN];
char name[NAME_LEN];
uint8_t data_status;
uint16_t data_len;
(void)memset(name, 0, sizeof(name));
data_len = buf->len;
bt_data_parse(buf, data_cb, name);
data_status = BT_HCI_LE_ADV_EVT_TYPE_DATA_STATUS(info->adv_props);
bt_addr_le_to_str(info->addr, le_addr, sizeof(le_addr));
printk("[DEVICE]: %s, AD evt type %u, Tx Pwr: %i, RSSI %i "
"Data status: %u, AD data len: %u Name: %s "
"C:%u S:%u D:%u SR:%u E:%u Pri PHY: %s, Sec PHY: %s, "
"Interval: 0x%04x (%u ms), SID: %u\n",
le_addr, info->adv_type, info->tx_power, info->rssi,
data_status, data_len, name,
(info->adv_props & BT_GAP_ADV_PROP_CONNECTABLE) != 0,
(info->adv_props & BT_GAP_ADV_PROP_SCANNABLE) != 0,
(info->adv_props & BT_GAP_ADV_PROP_DIRECTED) != 0,
(info->adv_props & BT_GAP_ADV_PROP_SCAN_RESPONSE) != 0,
(info->adv_props & BT_GAP_ADV_PROP_EXT_ADV) != 0,
phy2str(info->primary_phy), phy2str(info->secondary_phy),
info->interval, info->interval * 5 / 4, info->sid);
}
static struct bt_le_scan_cb scan_callbacks = {
.recv = scan_recv,
};
#endif /* CONFIG_BT_EXT_ADV */
int observer_start(void)
{
struct bt_le_scan_param scan_param = {
.type = BT_LE_SCAN_TYPE_PASSIVE,
.options = BT_LE_SCAN_OPT_FILTER_DUPLICATE,
.interval = BT_GAP_SCAN_FAST_INTERVAL,
.window = BT_GAP_SCAN_FAST_WINDOW,
};
int err;
#if defined(CONFIG_BT_EXT_ADV)
bt_le_scan_cb_register(&scan_callbacks);
printk("Registered scan callbacks\n");
#endif /* CONFIG_BT_EXT_ADV */
err = bt_le_scan_start(&scan_param, device_found);
if (err) {
printk("Start scanning failed (err %d)\n", err);
return err;
}
printk("Started scanning...\n");
return 0;
}