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