1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "device/bluetooth/bluetooth_device_mac.h"
9 #include "base/basictypes.h"
10 #include "base/bind.h"
11 #include "base/hash.h"
12 #include "base/mac/sdk_forward_declarations.h"
13 #include "base/sequenced_task_runner.h"
14 #include "base/strings/string_number_conversions.h"
15 #include "base/strings/string_util.h"
16 #include "base/strings/sys_string_conversions.h"
17 #include "device/bluetooth/bluetooth_socket_mac.h"
18 #include "device/bluetooth/bluetooth_uuid.h"
20 // Undocumented API for accessing the Bluetooth transmit power level.
21 // Similar to the API defined here [ http://goo.gl/20Q5vE ].
22 @interface IOBluetoothHostController (UndocumentedAPI)
24 BluetoothHCIReadTransmitPowerLevel:(BluetoothConnectionHandle)connection
25 inType:(BluetoothHCITransmitPowerLevelType)type
26 outTransmitPowerLevel:(BluetoothHCITransmitPowerLevel*)level;
32 const char kApiUnavailable[] = "This API is not implemented on this platform.";
34 // Returns the first (should be, only) UUID contained within the
35 // |service_class_data|. Returns an invalid (empty) UUID if none is found.
36 BluetoothUUID ExtractUuid(IOBluetoothSDPDataElement* service_class_data) {
37 NSArray* inner_elements = [service_class_data getArrayValue];
38 IOBluetoothSDPUUID* sdp_uuid = nil;
39 for (IOBluetoothSDPDataElement* inner_element in inner_elements) {
40 if ([inner_element getTypeDescriptor] == kBluetoothSDPDataElementTypeUUID) {
41 sdp_uuid = [[inner_element getUUIDValue] getUUIDWithLength:16];
47 return BluetoothUUID();
49 const uint8* uuid_bytes = reinterpret_cast<const uint8*>([sdp_uuid bytes]);
50 std::string uuid_str = base::HexEncode(uuid_bytes, 16);
51 DCHECK_EQ(uuid_str.size(), 32U);
52 uuid_str.insert(8, "-");
53 uuid_str.insert(13, "-");
54 uuid_str.insert(18, "-");
55 uuid_str.insert(23, "-");
56 return BluetoothUUID(uuid_str);
61 BluetoothDeviceMac::BluetoothDeviceMac(IOBluetoothDevice* device)
62 : device_([device retain]) {
65 BluetoothDeviceMac::~BluetoothDeviceMac() {
68 uint32 BluetoothDeviceMac::GetBluetoothClass() const {
69 return [device_ classOfDevice];
72 std::string BluetoothDeviceMac::GetDeviceName() const {
73 return base::SysNSStringToUTF8([device_ name]);
76 std::string BluetoothDeviceMac::GetAddress() const {
77 return GetDeviceAddress(device_);
80 BluetoothDevice::VendorIDSource BluetoothDeviceMac::GetVendorIDSource() const {
81 return VENDOR_ID_UNKNOWN;
84 uint16 BluetoothDeviceMac::GetVendorID() const {
88 uint16 BluetoothDeviceMac::GetProductID() const {
92 uint16 BluetoothDeviceMac::GetDeviceID() const {
96 bool BluetoothDeviceMac::IsPaired() const {
97 return [device_ isPaired];
100 bool BluetoothDeviceMac::IsConnected() const {
101 return [device_ isConnected];
104 bool BluetoothDeviceMac::IsConnectable() const {
108 bool BluetoothDeviceMac::IsConnecting() const {
112 BluetoothDevice::UUIDList BluetoothDeviceMac::GetUUIDs() const {
114 for (IOBluetoothSDPServiceRecord* service_record in [device_ services]) {
115 IOBluetoothSDPDataElement* service_class_data =
116 [service_record getAttributeDataElement:
117 kBluetoothSDPAttributeIdentifierServiceClassIDList];
118 if ([service_class_data getTypeDescriptor] ==
119 kBluetoothSDPDataElementTypeDataElementSequence) {
120 BluetoothUUID uuid = ExtractUuid(service_class_data);
122 uuids.push_back(uuid);
128 int16 BluetoothDeviceMac::GetInquiryRSSI() const {
129 return kUnknownPower;
132 int16 BluetoothDeviceMac::GetInquiryTxPower() const {
134 return kUnknownPower;
137 bool BluetoothDeviceMac::ExpectingPinCode() const {
142 bool BluetoothDeviceMac::ExpectingPasskey() const {
147 bool BluetoothDeviceMac::ExpectingConfirmation() const {
152 void BluetoothDeviceMac::GetConnectionInfo(
153 const ConnectionInfoCallback& callback) {
154 ConnectionInfo connection_info;
155 if (![device_ isConnected]) {
156 callback.Run(connection_info);
160 connection_info.rssi = [device_ rawRSSI];
161 // The API guarantees that +127 is returned in case the RSSI is not readable:
162 // http://goo.gl/bpURYv
163 if (connection_info.rssi == 127)
164 connection_info.rssi = kUnknownPower;
166 connection_info.transmit_power =
167 GetHostTransmitPower(kReadCurrentTransmitPowerLevel);
168 connection_info.max_transmit_power =
169 GetHostTransmitPower(kReadMaximumTransmitPowerLevel);
171 callback.Run(connection_info);
174 void BluetoothDeviceMac::Connect(
175 PairingDelegate* pairing_delegate,
176 const base::Closure& callback,
177 const ConnectErrorCallback& error_callback) {
181 void BluetoothDeviceMac::SetPinCode(const std::string& pincode) {
185 void BluetoothDeviceMac::SetPasskey(uint32 passkey) {
189 void BluetoothDeviceMac::ConfirmPairing() {
193 void BluetoothDeviceMac::RejectPairing() {
197 void BluetoothDeviceMac::CancelPairing() {
201 void BluetoothDeviceMac::Disconnect(const base::Closure& callback,
202 const ErrorCallback& error_callback) {
206 void BluetoothDeviceMac::Forget(const ErrorCallback& error_callback) {
210 void BluetoothDeviceMac::ConnectToService(
211 const BluetoothUUID& uuid,
212 const ConnectToServiceCallback& callback,
213 const ConnectToServiceErrorCallback& error_callback) {
214 scoped_refptr<BluetoothSocketMac> socket = BluetoothSocketMac::CreateSocket();
216 device_.get(), uuid, base::Bind(callback, socket), error_callback);
219 void BluetoothDeviceMac::ConnectToServiceInsecurely(
220 const BluetoothUUID& uuid,
221 const ConnectToServiceCallback& callback,
222 const ConnectToServiceErrorCallback& error_callback) {
223 error_callback.Run(kApiUnavailable);
226 void BluetoothDeviceMac::CreateGattConnection(
227 const GattConnectionCallback& callback,
228 const ConnectErrorCallback& error_callback) {
229 // TODO(armansito): Implement.
230 error_callback.Run(ERROR_UNSUPPORTED_DEVICE);
233 NSDate* BluetoothDeviceMac::GetLastInquiryUpdate() {
234 return [device_ getLastInquiryUpdate];
237 int BluetoothDeviceMac::GetHostTransmitPower(
238 BluetoothHCITransmitPowerLevelType power_level_type) const {
239 IOBluetoothHostController* controller =
240 [IOBluetoothHostController defaultController];
242 // Bail if the undocumented API is unavailable on this machine.
243 SEL selector = @selector(
244 BluetoothHCIReadTransmitPowerLevel:inType:outTransmitPowerLevel:);
245 if (![controller respondsToSelector:selector])
246 return kUnknownPower;
248 BluetoothHCITransmitPowerLevel power_level;
250 [controller BluetoothHCIReadTransmitPowerLevel:[device_ connectionHandle]
251 inType:power_level_type
252 outTransmitPowerLevel:&power_level];
253 if (result != kIOReturnSuccess)
254 return kUnknownPower;
260 std::string BluetoothDeviceMac::GetDeviceAddress(IOBluetoothDevice* device) {
261 return CanonicalizeAddress(base::SysNSStringToUTF8([device addressString]));
264 } // namespace device