mirror of
https://github.com/Fishwaldo/bl_mcu_sdk.git
synced 2025-07-18 10:48:50 +00:00
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/** @file
|
|
* @brief GATT Battery Service
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2018 Nordic Semiconductor ASA
|
|
* Copyright (c) 2016 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdbool.h>
|
|
#include <zephyr/types.h>
|
|
|
|
#include "bluetooth.h"
|
|
#include "conn.h"
|
|
#include "gatt.h"
|
|
#include "uuid.h"
|
|
#include "bas.h"
|
|
|
|
#if !defined(BFLB_BLE)
|
|
#define LOG_LEVEL CONFIG_BT_GATT_BAS_LOG_LEVEL
|
|
#include <logging/log.h>
|
|
LOG_MODULE_REGISTER(bas);
|
|
#endif
|
|
|
|
static u8_t battery_level = 100U;
|
|
|
|
static void blvl_ccc_cfg_changed(const struct bt_gatt_attr *attr,
|
|
u16_t value)
|
|
{
|
|
ARG_UNUSED(attr);
|
|
|
|
bool notif_enabled = (value == BT_GATT_CCC_NOTIFY);
|
|
|
|
#if !defined(BFLB_BLE)
|
|
LOG_INF("BAS Notifications %s", notif_enabled ? "enabled" : "disabled");
|
|
#endif
|
|
}
|
|
|
|
static ssize_t read_blvl(struct bt_conn *conn,
|
|
const struct bt_gatt_attr *attr, void *buf,
|
|
u16_t len, u16_t offset)
|
|
{
|
|
u8_t lvl8 = battery_level;
|
|
|
|
return bt_gatt_attr_read(conn, attr, buf, len, offset, &lvl8,
|
|
sizeof(lvl8));
|
|
}
|
|
|
|
static struct bt_gatt_attr attrs[] = {
|
|
BT_GATT_PRIMARY_SERVICE(BT_UUID_BAS),
|
|
BT_GATT_CHARACTERISTIC(BT_UUID_BAS_BATTERY_LEVEL,
|
|
BT_GATT_CHRC_READ | BT_GATT_CHRC_NOTIFY,
|
|
BT_GATT_PERM_READ, read_blvl, NULL,
|
|
&battery_level),
|
|
BT_GATT_CCC(blvl_ccc_cfg_changed, BT_GATT_PERM_READ | BT_GATT_PERM_WRITE),
|
|
BT_GATT_DESCRIPTOR(BT_UUID_HIDS_REPORT_REF, BT_GATT_PERM_READ,
|
|
NULL, NULL, NULL),
|
|
};
|
|
|
|
struct bt_gatt_service bas = BT_GATT_SERVICE(attrs);
|
|
|
|
void bas_init(void)
|
|
{
|
|
bt_gatt_service_register(&bas);
|
|
}
|
|
|
|
u8_t bt_gatt_bas_get_battery_level(void)
|
|
{
|
|
return battery_level;
|
|
}
|
|
|
|
int bt_gatt_bas_set_battery_level(u8_t level)
|
|
{
|
|
int rc;
|
|
|
|
if (level > 100U) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
battery_level = level;
|
|
|
|
rc = bt_gatt_notify(NULL, &bas.attrs[1], &level, sizeof(level));
|
|
|
|
return rc == -ENOTCONN ? 0 : rc;
|
|
}
|
|
|
|
#if !defined(BFLB_BLE)
|
|
SYS_INIT(bas_init, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);
|
|
#endif
|