1 /*
2 * Copyright 2022 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 #include "hci_socket_transport.h"
18
19 #include "log.h"
20
21 namespace rootcanal {
22
HciSocketTransport(std::shared_ptr<AsyncDataChannel> socket)23 HciSocketTransport::HciSocketTransport(std::shared_ptr<AsyncDataChannel> socket)
24 : socket_(socket) {}
25
RegisterCallbacks(PacketCallback packet_callback,CloseCallback close_callback)26 void HciSocketTransport::RegisterCallbacks(PacketCallback packet_callback,
27 CloseCallback close_callback) {
28 // TODO: Avoid the copy here by using new buffer in H4DataChannel
29 h4_ = H4DataChannelPacketizer(
30 socket_,
31 [packet_callback](const std::vector<uint8_t>& raw_command) {
32 std::shared_ptr<std::vector<uint8_t>> packet_copy =
33 std::make_shared<std::vector<uint8_t>>(raw_command);
34 packet_callback(PacketType::COMMAND, packet_copy);
35 },
36 [](const std::vector<uint8_t>&) {
37 FATAL("Unexpected Event in HciSocketTransport!");
38 },
39 [packet_callback](const std::vector<uint8_t>& raw_acl) {
40 std::shared_ptr<std::vector<uint8_t>> packet_copy =
41 std::make_shared<std::vector<uint8_t>>(raw_acl);
42 packet_callback(PacketType::ACL, packet_copy);
43 },
44 [packet_callback](const std::vector<uint8_t>& raw_sco) {
45 std::shared_ptr<std::vector<uint8_t>> packet_copy =
46 std::make_shared<std::vector<uint8_t>>(raw_sco);
47 packet_callback(PacketType::SCO, packet_copy);
48 },
49 [packet_callback](const std::vector<uint8_t>& raw_iso) {
50 std::shared_ptr<std::vector<uint8_t>> packet_copy =
51 std::make_shared<std::vector<uint8_t>>(raw_iso);
52 packet_callback(PacketType::ISO, packet_copy);
53 },
54 close_callback);
55 }
56
Tick()57 void HciSocketTransport::Tick() { h4_.OnDataReady(socket_); }
58
Send(PacketType packet_type,const std::vector<uint8_t> & packet)59 void HciSocketTransport::Send(PacketType packet_type,
60 const std::vector<uint8_t>& packet) {
61 if (!socket_ || !socket_->Connected()) {
62 INFO("Closed socket. Dropping packet of type {}",
63 fmt::underlying(packet_type));
64 return;
65 }
66 uint8_t type = static_cast<uint8_t>(packet_type);
67 h4_.Send(type, packet.data(), packet.size());
68 }
69
Close()70 void HciSocketTransport::Close() { socket_->Close(); }
71
72 } // namespace rootcanal
73