54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/** @file
|
|
* @brief GATT TX Power Service
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2020 Nordic Semiconductor ASA
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <zephyr/types.h>
|
|
|
|
#include <zephyr/bluetooth/bluetooth.h>
|
|
#include <zephyr/bluetooth/conn.h>
|
|
#include <zephyr/bluetooth/gatt.h>
|
|
#include <zephyr/bluetooth/uuid.h>
|
|
#include <zephyr/bluetooth/hci.h>
|
|
|
|
#define LOG_LEVEL CONFIG_BT_TPS_LOG_LEVEL
|
|
#include <zephyr/logging/log.h>
|
|
LOG_MODULE_REGISTER(tps);
|
|
|
|
static ssize_t read_tx_power_level(struct bt_conn *conn,
|
|
const struct bt_gatt_attr *attr, void *buf,
|
|
uint16_t len, uint16_t offset)
|
|
{
|
|
int err;
|
|
struct bt_conn_le_tx_power tx_power_level = {0};
|
|
|
|
if (offset) {
|
|
return BT_GATT_ERR(BT_ATT_ERR_INVALID_OFFSET);
|
|
}
|
|
|
|
err = bt_conn_le_get_tx_power_level(conn, &tx_power_level);
|
|
if (err) {
|
|
LOG_ERR("Failed to read Tx Power Level over HCI: %d", err);
|
|
return BT_GATT_ERR(BT_ATT_ERR_UNLIKELY);
|
|
}
|
|
|
|
LOG_INF("TPS Tx Power Level read %d", tx_power_level.current_level);
|
|
|
|
return bt_gatt_attr_read(conn, attr, buf, len, offset,
|
|
&tx_power_level.current_level,
|
|
sizeof(tx_power_level.current_level));
|
|
}
|
|
|
|
BT_GATT_SERVICE_DEFINE(tps_svc,
|
|
BT_GATT_PRIMARY_SERVICE(BT_UUID_TPS),
|
|
BT_GATT_CHARACTERISTIC(BT_UUID_TPS_TX_POWER_LEVEL,
|
|
BT_GATT_CHRC_READ, BT_GATT_PERM_READ,
|
|
read_tx_power_level, NULL, NULL),
|
|
);
|