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107 lines
3.3 KiB
107 lines
3.3 KiB
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <iostream>
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#include <vector>
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#include "packet/avrcp/avrcp_packet.h"
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// These classes are temporary placeholders to easily switch between BT_HDR and
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// packets.
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class VectorPacket : public ::bluetooth::Packet {
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public:
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using Packet::Packet; // Inherit constructors
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static std::shared_ptr<VectorPacket> Make() {
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return std::shared_ptr<VectorPacket>(new VectorPacket());
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};
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static std::shared_ptr<VectorPacket> Make(std::vector<uint8_t> payload) {
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auto pkt = VectorPacket::Make();
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pkt->packet_start_index_ = 0;
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pkt->packet_end_index_ = payload.size();
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pkt->data_ = std::make_shared<std::vector<uint8_t>>(std::move(payload));
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return pkt;
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};
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const std::vector<uint8_t>& GetData() { return *data_; };
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virtual std::string ToString() const override {
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std::stringstream ss;
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ss << "VectorPacket:" << std::endl;
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ss << " └ Payload =";
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for (auto it = begin(); it != end(); it++) {
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ss << " " << loghex(*it);
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}
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ss << std::endl;
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return ss.str();
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};
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virtual std::pair<size_t, size_t> GetPayloadIndecies() const override {
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return std::pair<size_t, size_t>(packet_start_index_, packet_end_index_);
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}
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virtual bool IsValid() const override { return true; }
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};
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// TODO (apanicke): When deleting the old AVRCP Stack, remove this class and
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// instead create a BT_HDR Parsing packet.
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class AvrcpMessageConverter {
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public:
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static std::shared_ptr<::bluetooth::Packet> Parse(tAVRC_MSG* m) {
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std::vector<uint8_t> data;
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switch (m->hdr.opcode) {
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case AVRC_OP_VENDOR: {
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tAVRC_MSG_VENDOR* msg = (tAVRC_MSG_VENDOR*)m;
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data.push_back(m->hdr.ctype);
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data.push_back((m->hdr.subunit_type << 3) | m->hdr.subunit_id);
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data.push_back(m->hdr.opcode);
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for (int i = 2; i >= 0; i--) {
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data.push_back((uint8_t)((msg->company_id >> i * 8) & 0xff));
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}
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for (int i = 0; i < msg->vendor_len; i++) {
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data.push_back(msg->p_vendor_data[i]);
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}
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} break;
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case AVRC_OP_PASS_THRU: {
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tAVRC_MSG_PASS* msg = (tAVRC_MSG_PASS*)m;
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data.push_back(m->hdr.ctype);
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data.push_back((m->hdr.subunit_type << 3) | m->hdr.subunit_id);
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data.push_back(m->hdr.opcode);
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data.push_back((msg->state << 7) | msg->op_id);
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data.push_back(0x00);
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} break;
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case AVRC_OP_BROWSE: {
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tAVRC_MSG_BROWSE* msg = (tAVRC_MSG_BROWSE*)m;
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// The first 3 bytes are header bytes that aren't actually in AVRCP
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// packets
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for (int i = 0; i < msg->browse_len; i++) {
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data.push_back(msg->p_browse_data[i]);
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}
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} break;
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default:
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LOG(ERROR) << "Unknown opcode for AVRCP message";
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break;
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}
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return VectorPacket::Make(data);
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}
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};
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