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 17 #pragma once 18 19 #include <cstdint> 20 21 namespace bluetooth { 22 namespace l2cap { 23 24 using Cid = uint16_t; 25 26 constexpr Cid kInvalidCid = 0; 27 constexpr Cid kFirstFixedChannel = 1; 28 constexpr Cid kLastFixedChannel = 63; 29 constexpr Cid kFirstDynamicChannel = kLastFixedChannel + 1; 30 constexpr Cid kLastDynamicChannel = (uint16_t)(0xffff); 31 32 constexpr Cid kClassicSignallingCid = 1; 33 constexpr Cid kConnectionlessCid = 2; 34 constexpr Cid kLeAttributeCid = 4; 35 constexpr Cid kLeSignallingCid = 5; 36 constexpr Cid kSmpCid = 6; 37 constexpr Cid kSmpBrCid = 7; 38 39 } // namespace l2cap 40 } // namespace bluetooth 41