1 /* 2 * Copyright (C) 2025 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 /** 22 * Parameters for a direction of packet flow in an LE L2CAP COC socket. 23 */ 24 struct L2capCocConfig { 25 //! Channel identifier of the endpoint. 26 uint16_t cid; 27 28 //! Maximum Transmission Unit. 29 uint16_t mtu; 30 31 //! Maximum PDU payload Size. 32 uint16_t mps; 33 34 //! Currently available credits for sending or receiving K-frames in LE 35 //! Credit Based Flow Control mode. 36 uint16_t credits; 37 }; 38 39 /** 40 * Data for the offloaded LE L2CAP COC socket. 41 */ 42 struct BleL2capCocSocketData { 43 //! Unique identifier for this socket connection. This ID in the offload 44 //! domain matches the ID used on the host side. It is valid only while the 45 //! socket is connected. 46 uint64_t socketId; 47 48 //! The ID of the Hub endpoint for hardware offload data path. 49 uint64_t endpointId; 50 51 //! ACL connection handle for the socket. 52 uint16_t connectionHandle; 53 54 //! The originating or destination client ID on the host side, used to direct 55 //! responses only to the client that sent the request. 56 uint16_t hostClientId; 57 58 L2capCocConfig rxConfig; 59 60 L2capCocConfig txConfig; 61 }; 62