1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* Copyright 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "capabilities_packet.h"
namespace bluetooth {
namespace avrcp {
std::unique_ptr<GetCapabilitiesRequestBuilder>
GetCapabilitiesRequestBuilder::MakeBuilder(Capability capability) {
std::unique_ptr<GetCapabilitiesRequestBuilder> builder(
new GetCapabilitiesRequestBuilder(capability));
return builder;
}
size_t GetCapabilitiesRequestBuilder::size() const {
return GetCapabilitiesRequest::kMinSize();
}
bool GetCapabilitiesRequestBuilder::Serialize(
const std::shared_ptr<::bluetooth::Packet>& pkt) {
ReserveSpace(pkt, size());
// Push the standard avrcp headers
PacketBuilder::PushHeader(pkt);
// Push the avrcp vendor command headers, the parameter length is always 1
VendorPacketBuilder::PushHeader(pkt, 1);
// Push the capability
return AddPayloadOctets1(pkt, static_cast<uint8_t>(capability_));
}
Capability GetCapabilitiesRequest::GetCapabilityRequested() const {
auto value = *(begin() + VendorPacket::kMinSize());
return static_cast<Capability>(value);
}
bool GetCapabilitiesRequest::IsValid() const {
if (!VendorPacket::IsValid()) return false;
return (size() == VendorPacket::kMinSize() + 1);
}
std::string GetCapabilitiesRequest::ToString() const {
std::stringstream ss;
ss << "AvrcpCapabilityReqPacket: " << std::endl;
ss << " └ cType = " << GetCType() << std::endl;
ss << " └ Subunit Type = " << loghex(GetSubunitType()) << std::endl;
ss << " └ Subunit ID = " << loghex(GetSubunitId()) << std::endl;
ss << " └ OpCode = " << GetOpcode() << std::endl;
ss << " └ Company ID = " << loghex(GetCompanyId()) << std::endl;
ss << " └ Command PDU = " << GetCommandPdu() << std::endl;
ss << " └ PacketType = " << GetPacketType() << std::endl;
ss << " └ Parameter Length = " << loghex(GetParameterLength()) << std::endl;
ss << " └ Capabilities Request = " << GetCapabilityRequested() << std::endl;
return ss.str();
}
std::unique_ptr<GetCapabilitiesResponseBuilder>
GetCapabilitiesResponseBuilder::MakeCompanyIdBuilder(
uint32_t company_id_element) {
std::unique_ptr<GetCapabilitiesResponseBuilder> builder(
new GetCapabilitiesResponseBuilder(Capability::COMPANY_ID));
company_id_element &= 0x00FFFFFF;
builder->elements_.insert(company_id_element);
return builder;
}
std::unique_ptr<GetCapabilitiesResponseBuilder>
GetCapabilitiesResponseBuilder::MakeEventsSupportedBuilder(Event event) {
std::unique_ptr<GetCapabilitiesResponseBuilder> builder(
new GetCapabilitiesResponseBuilder(Capability::EVENTS_SUPPORTED));
builder->elements_.insert(static_cast<uint8_t>(event));
return builder;
}
GetCapabilitiesResponseBuilder* GetCapabilitiesResponseBuilder::AddCompanyId(
uint32_t company_id) {
CHECK_EQ(capability_, Capability::COMPANY_ID);
CHECK_LT(elements_.size(), size_t(0xFF))
<< __func__ << ": maximum capability count reached";
company_id &= 0x00FFFFFF;
elements_.insert(company_id);
return this;
}
GetCapabilitiesResponseBuilder* GetCapabilitiesResponseBuilder::AddEvent(
Event event) {
CHECK_EQ(capability_, Capability::EVENTS_SUPPORTED);
CHECK_LT(elements_.size(), size_t(0xFF))
<< __func__ << ": maximum capability count reached";
elements_.insert(static_cast<uint8_t>(event));
return this;
}
size_t GetCapabilitiesResponseBuilder::size() const {
// Company ID's have a size of 3 while Events have a size of 1
size_t capability_count = elements_.size();
size_t capability_size = capability_ == Capability::COMPANY_ID ? 3 : 1;
return GetCapabilitiesResponse::kMinSize() +
(capability_count * capability_size);
}
bool GetCapabilitiesResponseBuilder::Serialize(
const std::shared_ptr<::bluetooth::Packet>& pkt) {
ReserveSpace(pkt, size());
// Push the standard avrcp headers
PacketBuilder::PushHeader(pkt);
// Push the avrcp vendor command headers
uint16_t parameter_count = size() - VendorPacket::kMinSize();
VendorPacketBuilder::PushHeader(pkt, parameter_count);
// Push the capability, capability count, and elements
AddPayloadOctets1(pkt, static_cast<uint8_t>(capability_));
AddPayloadOctets1(pkt, elements_.size());
for (auto it = elements_.begin(); it != elements_.end(); it++) {
if (capability_ == Capability::COMPANY_ID)
PushCompanyId(pkt, *it);
else
AddPayloadOctets1(pkt, *it);
}
return true;
}
} // namespace avrcp
} // namespace bluetooth
|
