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 #include "pass_through_packet.h"
18
19 #include "internal_include/bt_trace.h"
20
21 namespace bluetooth {
22 namespace avrcp {
23
MakeBuilder(bool response,bool pushed,uint8_t operation_id)24 std::unique_ptr<PassThroughPacketBuilder> PassThroughPacketBuilder::MakeBuilder(
25 bool response, bool pushed, uint8_t operation_id) {
26 auto builder = std::unique_ptr<PassThroughPacketBuilder>(
27 new PassThroughPacketBuilder(response, pushed, operation_id));
28
29 return builder;
30 }
31
size() const32 size_t PassThroughPacketBuilder::size() const { return PassThroughPacket::kMinSize(); }
33
Serialize(const std::shared_ptr<::bluetooth::Packet> & pkt)34 bool PassThroughPacketBuilder::Serialize(const std::shared_ptr<::bluetooth::Packet>& pkt) {
35 ReserveSpace(pkt, size());
36
37 PacketBuilder::PushHeader(pkt);
38
39 uint8_t byte = operation_id_ & 0b01111111;
40 if (!pushed_) {
41 byte |= 0b10000000;
42 }
43 AddPayloadOctets1(pkt, byte);
44 // Data length, for this packet it's always 0;
45 AddPayloadOctets1(pkt, 0x00);
46
47 return true;
48 }
49
GetKeyState() const50 KeyState PassThroughPacket::GetKeyState() const {
51 auto it = begin() + Packet::kMinSize();
52 return static_cast<KeyState>(((*it) & 0b10000000) >> 7);
53 }
54
GetOperationId() const55 uint8_t PassThroughPacket::GetOperationId() const {
56 return *(begin() + Packet::kMinSize()) & 0b01111111;
57 }
58
IsValid() const59 bool PassThroughPacket::IsValid() const { return size() == kMinSize(); }
60
ToString() const61 std::string PassThroughPacket::ToString() const {
62 std::stringstream ss;
63 ss << "Avrcp::AvrcpPacket: " << std::endl;
64 ss << " └ cType = " << GetCType() << std::endl;
65 ss << " └ Subunit Type = " << loghex(GetSubunitType()) << std::endl;
66 ss << " └ Subunit ID = " << loghex(GetSubunitId()) << std::endl;
67 ss << " └ OpCode = " << GetOpcode() << std::endl;
68 ss << " └ Pushed = " << GetKeyState() << std::endl;
69 ss << " └ Operation ID = " << loghex(GetOperationId()) << std::endl;
70
71 return ss.str();
72 }
73
74 } // namespace avrcp
75 } // namespace bluetooth
76