1 //
2 // Copyright 2017 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 <stddef.h>  // for size_t
20 #include <stdint.h>  // for uint8_t
21 
22 #include <memory>  // for shared_ptr
23 
24 #include "h4_parser.h"               // for ClientDisconnectCallback, H4Parser
25 #include "net/async_data_channel.h"  // for AsyncDataChannel
26 
27 namespace rootcanal {
28 
29 using android::net::AsyncDataChannel;
30 
31 // A socket based H4DataChannelPacketizer. Call OnDataReady whenever
32 // data can be read from the socket.
33 class H4DataChannelPacketizer {
34  public:
35   H4DataChannelPacketizer(std::shared_ptr<AsyncDataChannel> socket,
36                           PacketReadCallback command_cb,
37                           PacketReadCallback event_cb,
38                           PacketReadCallback acl_cb, PacketReadCallback sco_cb,
39                           PacketReadCallback iso_cb,
40                           ClientDisconnectCallback disconnect_cb);
41 
42   size_t Send(uint8_t type, const uint8_t* data, size_t length);
43 
44   void OnDataReady(std::shared_ptr<AsyncDataChannel> socket);
45 
46  private:
47   std::shared_ptr<AsyncDataChannel> uart_socket_;
48   H4Parser h4_parser_;
49 
50   ClientDisconnectCallback disconnect_cb_;
51   bool disconnected_{false};
52 };
53 
54 }  // namespace rootcanal
55