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 "set_browsed_player.h"
18
19 #include <base/sys_byteorder.h>
20
21 #include "internal_include/bt_trace.h"
22
23 namespace bluetooth {
24 namespace avrcp {
25
MakeBuilder(Status status,uint16_t uid_counter,uint32_t num_items_in_folder,uint8_t folder_depth,std::string folder_name)26 std::unique_ptr<SetBrowsedPlayerResponseBuilder> SetBrowsedPlayerResponseBuilder::MakeBuilder(
27 Status status, uint16_t uid_counter, uint32_t num_items_in_folder, uint8_t folder_depth,
28 std::string folder_name) {
29 std::unique_ptr<SetBrowsedPlayerResponseBuilder> builder(new SetBrowsedPlayerResponseBuilder(
30 status, uid_counter, num_items_in_folder, folder_depth, folder_name));
31
32 return builder;
33 }
34
size() const35 size_t SetBrowsedPlayerResponseBuilder::size() const {
36 size_t len = BrowsePacket::kMinSize();
37 len += 1; // Status
38
39 // If the status isn't success the rest of the fields are ommited
40 if (status_ != Status::NO_ERROR) {
41 return len;
42 }
43
44 len += 2; // UID Counter
45 len += 4; // Number of items in folder
46 len += 2; // UTF-8 Character Set
47 len += 1; // Folder Depth
48
49 // This is only included if the folder returned isn't the root folder
50 if (folder_depth_ != 0) {
51 len += 2; // Folder Name Size;
52 len += folder_name_.size(); // Folder Name
53 }
54
55 return len;
56 }
57
Serialize(const std::shared_ptr<::bluetooth::Packet> & pkt)58 bool SetBrowsedPlayerResponseBuilder::Serialize(const std::shared_ptr<::bluetooth::Packet>& pkt) {
59 ReserveSpace(pkt, size());
60
61 BrowsePacketBuilder::PushHeader(pkt, size() - BrowsePacket::kMinSize());
62
63 AddPayloadOctets1(pkt, (uint8_t)status_);
64
65 if (status_ != Status::NO_ERROR) {
66 return true;
67 }
68 AddPayloadOctets2(pkt, base::ByteSwap(uid_counter_));
69 AddPayloadOctets4(pkt, base::ByteSwap(num_items_in_folder_));
70 AddPayloadOctets2(pkt, base::ByteSwap((uint16_t)0x006a)); // UTF-8
71 AddPayloadOctets1(pkt, folder_depth_);
72
73 // Skip adding the folder name if the folder depth is 0
74 if (folder_depth_ == 0) {
75 return true;
76 }
77 uint16_t folder_name_len = folder_name_.size();
78 AddPayloadOctets2(pkt, base::ByteSwap(folder_name_len));
79 for (auto it = folder_name_.begin(); it != folder_name_.end(); it++) {
80 AddPayloadOctets1(pkt, *it);
81 }
82
83 return true;
84 }
85
GetPlayerId() const86 uint16_t SetBrowsedPlayerRequest::GetPlayerId() const {
87 auto it = begin() + BrowsePacket::kMinSize();
88 return it.extractBE<uint16_t>();
89 }
90
IsValid() const91 bool SetBrowsedPlayerRequest::IsValid() const {
92 if (!BrowsePacket::IsValid()) {
93 return false;
94 }
95 return size() == kMinSize();
96 }
97
ToString() const98 std::string SetBrowsedPlayerRequest::ToString() const {
99 std::stringstream ss;
100 ss << "SetBrowsedPlayerRequestPacket: " << std::endl;
101 ss << " └ PDU = " << GetPdu() << std::endl;
102 ss << " └ Length = " << GetLength() << std::endl;
103 ss << " └ Player ID = " << loghex(GetPlayerId()) << std::endl;
104 ss << std::endl;
105
106 return ss.str();
107 }
108
109 } // namespace avrcp
110 } // namespace bluetooth
111