pebble/src/include/bluetooth/hrm_service.h
2025-01-27 11:38:16 -08:00

43 lines
1.7 KiB
C

/*
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <stdbool.h>
#include <bluetooth/bluetooth_types.h>
typedef struct {
uint16_t bpm;
bool is_on_wrist;
} BleHrmServiceMeasurement;
//! @return True if the BT driver lib supports exposing the GATT HRM service.
bool bt_driver_is_hrm_service_supported(void);
//! Adds or removes the HRM service from the GATT database, notifying any connected devices
//! by sending a "Service Changed" indication for the mutated handle range.
void bt_driver_hrm_service_enable(bool enable);
//! Sends the Heart Rate Measurement to all subscribed & connected devices.
void bt_driver_hrm_service_handle_measurement(const BleHrmServiceMeasurement *measurement,
const BTDeviceInternal *permitted_devices,
size_t num_permitted_devices);
//! Called when a connected device (un)subscribes to the GATT HRM service's "Heart Rate Measurement"
//! characteristic.
extern void bt_driver_cb_hrm_service_update_subscription(const BTDeviceInternal *device,
bool is_subscribed);