1 /* 2 * Copyright 2018 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 <iostream> 20 #include <vector> 21 22 #include "packet/avrcp/avrcp_packet.h" 23 #include "stack/include/bt_hdr.h" 24 25 // These classes are temporary placeholders to easily switch between BT_HDR and 26 // packets. 27 class VectorPacket : public ::bluetooth::Packet { 28 public: 29 using Packet::Packet; // Inherit constructors 30 Make()31 static std::shared_ptr<VectorPacket> Make() { 32 return std::shared_ptr<VectorPacket>(new VectorPacket()); 33 }; 34 Make(std::vector<uint8_t> payload)35 static std::shared_ptr<VectorPacket> Make(std::vector<uint8_t> payload) { 36 auto pkt = VectorPacket::Make(); 37 pkt->packet_start_index_ = 0; 38 pkt->packet_end_index_ = payload.size(); 39 pkt->data_ = std::make_shared<std::vector<uint8_t>>(std::move(payload)); 40 return pkt; 41 }; 42 GetData()43 const std::vector<uint8_t>& GetData() { return *data_; }; 44 ToString()45 virtual std::string ToString() const override { 46 std::stringstream ss; 47 ss << "VectorPacket:" << std::endl; 48 ss << " └ Payload ="; 49 for (auto it = begin(); it != end(); it++) { 50 ss << " " << loghex(*it); 51 } 52 ss << std::endl; 53 54 return ss.str(); 55 }; 56 GetPayloadIndecies()57 virtual std::pair<size_t, size_t> GetPayloadIndecies() const override { 58 return std::pair<size_t, size_t>(packet_start_index_, packet_end_index_); 59 } 60 IsValid()61 virtual bool IsValid() const override { return true; } 62 }; 63 64 // TODO (apanicke): When deleting the old AVRCP Stack, remove this class and 65 // instead create a BT_HDR Parsing packet. 66 class AvrcpMessageConverter { 67 public: Parse(tAVRC_MSG * m)68 static std::shared_ptr<::bluetooth::Packet> Parse(tAVRC_MSG* m) { 69 std::vector<uint8_t> data; 70 71 switch (m->hdr.opcode) { 72 case AVRC_OP_VENDOR: { 73 tAVRC_MSG_VENDOR* msg = (tAVRC_MSG_VENDOR*)m; 74 data.push_back(m->hdr.ctype); 75 data.push_back((m->hdr.subunit_type << 3) | m->hdr.subunit_id); 76 data.push_back(m->hdr.opcode); 77 for (int i = 2; i >= 0; i--) { 78 data.push_back((uint8_t)((msg->company_id >> i * 8) & 0xff)); 79 } 80 for (int i = 0; i < msg->vendor_len; i++) { 81 data.push_back(msg->p_vendor_data[i]); 82 } 83 } break; 84 case AVRC_OP_PASS_THRU: { 85 tAVRC_MSG_PASS* msg = (tAVRC_MSG_PASS*)m; 86 data.push_back(m->hdr.ctype); 87 data.push_back((m->hdr.subunit_type << 3) | m->hdr.subunit_id); 88 data.push_back(m->hdr.opcode); 89 data.push_back((msg->state << 7) | msg->op_id); 90 data.push_back(0x00); 91 } break; 92 case AVRC_OP_BROWSE: { 93 tAVRC_MSG_BROWSE* msg = (tAVRC_MSG_BROWSE*)m; 94 // The first 3 bytes are header bytes that aren't actually in AVRCP 95 // packets 96 for (int i = 0; i < msg->browse_len; i++) { 97 data.push_back(msg->p_browse_data[i]); 98 } 99 } break; 100 default: 101 LOG(ERROR) << "Unknown opcode for AVRCP message"; 102 break; 103 } 104 105 return VectorPacket::Make(data); 106 } 107 }; 108