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)28 inline double ScanIntervalTimeMs(ScanInterval interval) {
29   return kTimeTickMs * interval;
30 }
31 
ScanWindowTimeMs(ScanWindow window)32 inline 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