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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. | |
4 | |
5 #ifndef CHROMEOS_DBUS_BLUETOOTH_DEVICE_CLIENT_H_ | |
6 #define CHROMEOS_DBUS_BLUETOOTH_DEVICE_CLIENT_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/callback.h" | |
12 #include "base/observer_list.h" | |
13 #include "base/values.h" | |
14 #include "chromeos/chromeos_export.h" | |
15 #include "chromeos/dbus/dbus_client.h" | |
16 #include "dbus/object_path.h" | |
17 #include "dbus/property.h" | |
18 | |
19 namespace chromeos { | |
20 | |
21 // BluetoothDeviceClient is used to communicate with objects representing | |
22 // remote Bluetooth Devices. | |
23 class CHROMEOS_EXPORT BluetoothDeviceClient : public DBusClient { | |
24 public: | |
25 // Structure of properties associated with bluetooth devices. | |
26 struct Properties : public dbus::PropertySet { | |
27 // The Bluetooth device address of the device. Read-only. | |
28 dbus::Property<std::string> address; | |
29 | |
30 // The Bluetooth friendly name of the device. Read-only, to give a | |
31 // different local name, use the |alias| property. | |
32 dbus::Property<std::string> name; | |
33 | |
34 // Proposed icon name for the device according to the freedesktop.org | |
35 // icon naming specification. Read-only. | |
36 dbus::Property<std::string> icon; | |
37 | |
38 // The Bluetooth class of the device. Read-only. | |
39 dbus::Property<uint32> bluetooth_class; | |
40 | |
41 // The GAP external appearance of the device. Read-only. | |
42 dbus::Property<uint16> appearance; | |
43 | |
44 // Unique numeric identifier for the vendor of the device. Read-only. | |
45 dbus::Property<uint16> vendor; | |
46 | |
47 // List of 128-bit UUIDs that represent the available remote services. | |
48 // Read-only. | |
49 dbus::Property<std::vector<std::string> > uuids; | |
50 | |
51 // Transmitted power level. This field is avaliable only for LE devices | |
52 // that include this field in AD. Read-only. | |
53 dbus::Property<int16> tx_power; | |
54 | |
55 // Indicates that the device is currently paired. Read-only. | |
56 dbus::Property<bool> paired; | |
57 | |
58 // Indicates that the device is currently connected. Read-only. | |
59 dbus::Property<bool> connected; | |
60 | |
61 // Whether the device is trusted, and connections should be always | |
62 // accepted and attempted when the device is visible. | |
63 dbus::Property<bool> trusted; | |
64 | |
65 // Whether the device is blocked, connections will be always rejected | |
66 // and the device will not be visible. | |
67 dbus::Property<bool> blocked; | |
68 | |
69 // Local alias for the device, if not set, is equal to |name|. | |
70 dbus::Property<std::string> alias; | |
71 | |
72 // Object path of the adapter the device belongs to. Read-only. | |
73 dbus::Property<dbus::ObjectPath> adapter; | |
74 | |
75 // Indicates whether the device is likely to only support pre-2.1 | |
76 // PIN Code pairing rather than 2.1 Secure Simple Pairing, this can | |
77 // give false positives. Read-only. | |
78 dbus::Property<bool> legacy_pairing; | |
79 | |
80 // Remote Device ID information in Linux kernel modalias format. Read-only. | |
81 dbus::Property<std::string> modalias; | |
82 | |
83 // Received signal strength indicator that is set when the device is | |
84 // discovered during inquiry. Read-only. | |
85 dbus::Property<int16> rssi; | |
86 | |
87 Properties(dbus::ObjectProxy* object_proxy, | |
88 const std::string& interface_name, | |
89 const PropertyChangedCallback& callback); | |
90 ~Properties() override; | |
91 }; | |
92 | |
93 // Interface for observing changes from a remote bluetooth device. | |
94 class Observer { | |
95 public: | |
96 virtual ~Observer() {} | |
97 | |
98 // Called when the remote device with object path |object_path| is added | |
99 // to the set of known devices. | |
100 virtual void DeviceAdded(const dbus::ObjectPath& object_path) {} | |
101 | |
102 // Called when the remote device with object path |object_path| is removed | |
103 // from the set of known devices. | |
104 virtual void DeviceRemoved(const dbus::ObjectPath& object_path) {} | |
105 | |
106 // Called when the device with object path |object_path| has a | |
107 // change in value of the property named |property_name|. | |
108 virtual void DevicePropertyChanged(const dbus::ObjectPath& object_path, | |
109 const std::string& property_name) {} | |
110 }; | |
111 | |
112 ~BluetoothDeviceClient() override; | |
113 | |
114 // Adds and removes observers for events on all remote bluetooth | |
115 // devices. Check the |object_path| parameter of observer methods to | |
116 // determine which device is issuing the event. | |
117 virtual void AddObserver(Observer* observer) = 0; | |
118 virtual void RemoveObserver(Observer* observer) = 0; | |
119 | |
120 // Returns the list of device object paths associated with the given adapter | |
121 // identified by the D-Bus object path |adapter_path|. | |
122 virtual std::vector<dbus::ObjectPath> GetDevicesForAdapter( | |
123 const dbus::ObjectPath& adapter_path) = 0; | |
124 | |
125 // Obtain the properties for the device with object path |object_path|, | |
126 // any values should be copied if needed. | |
127 virtual Properties* GetProperties(const dbus::ObjectPath& object_path) = 0; | |
128 | |
129 // The ErrorCallback is used by device methods to indicate failure. | |
130 // It receives two arguments: the name of the error in |error_name| and | |
131 // an optional message in |error_message|. | |
132 typedef base::Callback<void(const std::string& error_name, | |
133 const std::string& error_message)> ErrorCallback; | |
134 | |
135 // Connects to the device with object path |object_path|, connecting any | |
136 // profiles that can be connected to and have been flagged as auto-connected; | |
137 // may be used to connect additional profiles for an already connected device, | |
138 // and succeeds if at least one profile is connected. | |
139 virtual void Connect(const dbus::ObjectPath& object_path, | |
140 const base::Closure& callback, | |
141 const ErrorCallback& error_callback) = 0; | |
142 | |
143 // Disconnects the device with object path |object_path|, terminating | |
144 // the low-level ACL connection and any profiles using it. | |
145 virtual void Disconnect(const dbus::ObjectPath& object_path, | |
146 const base::Closure& callback, | |
147 const ErrorCallback& error_callback) = 0; | |
148 | |
149 // Connects to the profile |uuid| on the device with object path | |
150 // |object_path|, provided that the profile has been registered with a | |
151 // handler on the local device. | |
152 virtual void ConnectProfile(const dbus::ObjectPath& object_path, | |
153 const std::string& uuid, | |
154 const base::Closure& callback, | |
155 const ErrorCallback& error_callback) = 0; | |
156 | |
157 // Disconnects from the profile |uuid| on the device with object path | |
158 // |object_path|. | |
159 virtual void DisconnectProfile(const dbus::ObjectPath& object_path, | |
160 const std::string& uuid, | |
161 const base::Closure& callback, | |
162 const ErrorCallback& error_callback) = 0; | |
163 | |
164 // Initiates pairing with the device with object path |object_path| and | |
165 // retrieves all SDP records or GATT primary services. An agent must be | |
166 // registered to handle the pairing request. | |
167 virtual void Pair(const dbus::ObjectPath& object_path, | |
168 const base::Closure& callback, | |
169 const ErrorCallback& error_callback) = 0; | |
170 | |
171 // Cancels an in-progress pairing with the device with object path | |
172 // |object_path| initiated by Pair(). | |
173 virtual void CancelPairing(const dbus::ObjectPath& object_path, | |
174 const base::Closure& callback, | |
175 const ErrorCallback& error_callback) = 0; | |
176 | |
177 // The callback invoked for a successful GetConnInfo API call with the | |
178 // RSSI, TX power, and maximum TX power of the current connection. | |
179 typedef base::Callback<void(int16 rssi, | |
180 int16 transmit_power, | |
181 int16 max_transmit_power)> ConnInfoCallback; | |
182 | |
183 // Returns the RSSI, TX power, and maximum TX power of a connection to the | |
184 // device with object path |object_path|. If the device is not connected, then | |
185 // an error will be returned. | |
186 virtual void GetConnInfo(const dbus::ObjectPath& object_path, | |
187 const ConnInfoCallback& callback, | |
188 const ErrorCallback& error_callback) = 0; | |
189 | |
190 // Creates the instance. | |
191 static BluetoothDeviceClient* Create(); | |
192 | |
193 // Constants used to indicate exceptional error conditions. | |
194 static const char kNoResponseError[]; | |
195 static const char kUnknownDeviceError[]; | |
196 | |
197 protected: | |
198 BluetoothDeviceClient(); | |
199 | |
200 private: | |
201 DISALLOW_COPY_AND_ASSIGN(BluetoothDeviceClient); | |
202 }; | |
203 | |
204 } // namespace chromeos | |
205 | |
206 #endif // CHROMEOS_DBUS_BLUETOOTH_DEVICE_CLIENT_H_ | |
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