1 /* 2 * Copyright 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #pragma once 17 18 #include <cstdint> 19 20 namespace bluetooth { 21 namespace neighbor { 22 23 static constexpr double kTimeTickMs = 0.625; 24 25 using ScanInterval = uint16_t; // Range 0x0012 to 0x1000; only even values valid 11.25 to 2560ms 26 using ScanWindow = uint16_t; // Range 0x0011 to 0x1000; 10.625ms to 2560ms 27 ScanIntervalTimeMs(ScanInterval interval)28inline double ScanIntervalTimeMs(ScanInterval interval) { 29 return kTimeTickMs * interval; 30 } 31 ScanWindowTimeMs(ScanWindow window)32inline double ScanWindowTimeMs(ScanWindow window) { 33 return kTimeTickMs * window; 34 } 35 36 using ScanParameters = struct { 37 ScanInterval interval; 38 ScanWindow window; 39 }; 40 41 } // namespace neighbor 42 } // namespace bluetooth 43