1 /*
2 * Copyright (C) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "avrcp_ct_unit_info.h"
17
18 namespace OHOS {
19 namespace bluetooth {
AvrcCtUnitPacket(void)20 AvrcCtUnitPacket::AvrcCtUnitPacket(void)
21 {
22 HILOGI("enter");
23 }
24
AvrcCtUnitPacket(Packet * pkt)25 AvrcCtUnitPacket::AvrcCtUnitPacket(Packet *pkt)
26 {
27 HILOGI("enter");
28
29 DisassemblePacket(pkt);
30 }
31
~AvrcCtUnitPacket(void)32 AvrcCtUnitPacket::~AvrcCtUnitPacket(void)
33 {
34 HILOGI("enter");
35
36 if (pkt_ != nullptr) {
37 PacketFree(pkt_);
38 pkt_ = nullptr;
39 }
40 }
41
AssemblePacket(void)42 const Packet *AvrcCtUnitPacket::AssemblePacket(void)
43 {
44 HILOGI("enter");
45
46 pkt_ = PacketMalloc(0x00, 0x00, AVRC_CT_UNIT_COMMAND_SIZE);
47 auto buffer = static_cast<uint8_t *>(BufferPtr(PacketContinuousPayload(pkt_)));
48
49 uint16_t offset = 0x00;
50 offset += PushOctets1((buffer + offset), crCode_);
51 offset += PushOctets1((buffer + offset), (subunitType_ << AVRC_CT_UNIT_MOVE_BIT_3) | subunitId_);
52 offset += PushOctets1((buffer + offset), opCode_);
53 offset += PushOctets1((buffer + offset), AVRC_CT_UNIT_OCTET_3);
54 offset += PushOctets1((buffer + offset), AVRC_CT_UNIT_OCTET_3);
55 offset += PushOctets1((buffer + offset), AVRC_CT_UNIT_OCTET_3);
56 offset += PushOctets1((buffer + offset), AVRC_CT_UNIT_OCTET_3);
57 PushOctets1((buffer + offset), AVRC_CT_UNIT_OCTET_3);
58
59 return pkt_;
60 }
61
DisassemblePacket(Packet * pkt)62 bool AvrcCtUnitPacket::DisassemblePacket(Packet *pkt)
63 {
64 HILOGI("enter");
65
66 isValid_ = false;
67 size_t size = PacketPayloadSize(pkt);
68 if (size >= AVRC_CT_UNIT_RESPONSE_SIZE) {
69 auto buffer = static_cast<uint8_t *>(BufferPtr(PacketContinuousPayload(pkt)));
70
71 uint16_t offset = AVRC_CT_AVC_COMMON_CTYPE_OFFSET;
72 uint64_t payload = 0x00;
73 PopOctets1((buffer + offset), payload);
74 crCode_ = static_cast<uint8_t>(payload) & 0b00001111;
75
76 offset = AVRC_CT_UNIT_COMPANY_ID_OFFSET;
77 PopOctets3((buffer + offset), payload);
78 companyId_ = static_cast<uint32_t>(payload);
79 isValid_ = true;
80 } else {
81 crCode_ = AVRC_CT_RSP_CODE_REJECTED;
82 HILOGI("The size of the packet is invalid!");
83 }
84
85 return isValid_;
86 }
87 } // namespace bluetooth
88 } // namespace OHOS
89