1 //
2 // Copyright (C) 2015 Google, Inc.
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 <base.h>
18 #include <base/at_exit.h>
19 #include <base/command_line.h>
20 #include <base/logging.h>
21 #include <base/macros.h>
22 #include <base/strings/string_split.h>
23 #include <base/strings/string_util.h>
24 #include <binder/IPCThreadState.h>
25 #include <binder/ProcessState.h>
26
27 #include "bluetooth_binder_facade.h"
28 #include <service/common/bluetooth/binder/IBluetooth.h>
29 #include <service/common/bluetooth/binder/IBluetoothCallback.h>
30 #include <service/common/bluetooth/binder/IBluetoothLowEnergy.h>
31 #include <service/common/bluetooth/low_energy_constants.h>
32 #include <tuple>
33
34 using android::sp;
35 using ipc::binder::IBluetooth;
36 using ipc::binder::IBluetoothLowEnergy;
37
38 std::atomic_bool ble_registering(false);
39 std::atomic_int ble_client_id(0);
40
SharedValidator()41 bool BluetoothBinderFacade::SharedValidator() {
42 if (bt_iface == NULL) {
43 LOG(ERROR) << sl4n::kTagStr << " IBluetooth interface not initialized";
44 return false;
45 }
46 if (!bt_iface->IsEnabled()) {
47 LOG(ERROR) << sl4n::kTagStr << " IBluetooth interface not enabled";
48 return false;
49 }
50 return true;
51 }
52
BluetoothBinderEnable()53 std::tuple<bool, int> BluetoothBinderFacade::BluetoothBinderEnable() {
54 if (bt_iface == NULL) {
55 LOG(ERROR) << sl4n::kTagStr << ": IBluetooth interface not enabled";
56 return std::make_tuple(false, sl4n_error_codes::kFailInt);
57 }
58 bool result = bt_iface->Enable(false);
59 if (!result) {
60 LOG(ERROR) << sl4n::kTagStr << ": Failed to enable the Bluetooth service";
61 return std::make_tuple(false, sl4n_error_codes::kPassInt);
62 } else {
63 return std::make_tuple(true, sl4n_error_codes::kPassInt);
64 }
65 }
66
BluetoothBinderGetAddress()67 std::tuple<std::string, int> BluetoothBinderFacade::BluetoothBinderGetAddress() {
68 if (!SharedValidator()) {
69 return std::make_tuple(sl4n::kFailStr, sl4n_error_codes::kFailInt);
70 }
71 return std::make_tuple(bt_iface->GetAddress(), sl4n_error_codes::kPassInt);
72 }
73
BluetoothBinderGetName()74 std::tuple<std::string, int> BluetoothBinderFacade::BluetoothBinderGetName() {
75 if (!SharedValidator()) {
76 return std::make_tuple(sl4n::kFailStr,sl4n_error_codes::kFailInt);
77 }
78 std::string name = bt_iface->GetName();
79 if (name.empty()) {
80 LOG(ERROR) << sl4n::kTagStr << ": Failed to get device name";
81 return std::make_tuple(sl4n::kFailStr, sl4n_error_codes::kFailInt);
82 } else {
83 return std::make_tuple(name, sl4n_error_codes::kPassInt);
84 }
85 }
86
BluetoothBinderSetName(std::string name)87 std::tuple<bool, int> BluetoothBinderFacade::BluetoothBinderSetName(
88 std::string name) {
89
90 if (!SharedValidator()) {
91 return std::make_tuple(false, sl4n_error_codes::kFailInt);
92 }
93 bool result = bt_iface->SetName(name);
94 if (!result) {
95 LOG(ERROR) << sl4n::kTagStr << ": Failed to set device name";
96 return std::make_tuple(false, sl4n_error_codes::kFailInt);
97 }
98 return std::make_tuple(true, sl4n_error_codes::kPassInt);
99 }
100
BluetoothBinderInitInterface()101 std::tuple<bool, int> BluetoothBinderFacade::BluetoothBinderInitInterface() {
102 bt_iface = IBluetooth::getClientInterface();
103 if(!bt_iface.get()) {
104 LOG(ERROR) << sl4n::kTagStr <<
105 ": Failed to initialize IBluetooth interface";
106 return std::make_tuple(false, sl4n_error_codes::kFailInt);
107 }
108 return std::make_tuple(true, sl4n_error_codes::kPassInt);
109 }
110
BluetoothBinderRegisterBLE()111 std::tuple<bool, int> BluetoothBinderFacade::BluetoothBinderRegisterBLE() {
112 // TODO (tturney): verify bt_iface initialized everywhere
113 if (!SharedValidator()) {
114 return std::make_tuple(false, sl4n_error_codes::kFailInt);
115 }
116 ble_iface = bt_iface->GetLowEnergyInterface();
117 if(!ble_iface.get()) {
118 LOG(ERROR) << sl4n::kTagStr << ": Failed to register BLE";
119 return std::make_tuple(false, sl4n_error_codes::kFailInt);
120 }
121 return std::make_tuple(true, sl4n_error_codes::kPassInt);
122 }
123
BluetoothBinderSetAdvSettings(int mode,int timeout_seconds,int tx_power_level,bool is_connectable)124 std::tuple<int, int> BluetoothBinderFacade::BluetoothBinderSetAdvSettings(
125 int mode, int timeout_seconds, int tx_power_level, bool is_connectable) {
126 if (!SharedValidator()) {
127 return std::make_tuple(false,sl4n_error_codes::kFailInt);
128 }
129 bluetooth::AdvertiseSettings::Mode adv_mode;
130 switch (mode) {
131 case sl4n_ble::kAdvSettingsModeLowPowerInt :
132 adv_mode = bluetooth::AdvertiseSettings::Mode::MODE_LOW_POWER;
133 case sl4n_ble::kAdvSettingsModeBalancedInt :
134 adv_mode = bluetooth::AdvertiseSettings::Mode::MODE_BALANCED;
135 case sl4n_ble::kAdvSettingsModeLowLatencyInt :
136 adv_mode = bluetooth::AdvertiseSettings::Mode::MODE_LOW_LATENCY;
137 default :
138 LOG(ERROR) << sl4n::kTagStr <<
139 ": Input mode is outside the accepted values";
140 return std::make_tuple(
141 sl4n::kFailedCounterInt, sl4n_error_codes::kFailInt);
142 }
143
144 base::TimeDelta adv_timeout = base::TimeDelta::FromSeconds(
145 timeout_seconds);
146
147 bluetooth::AdvertiseSettings::TxPowerLevel adv_tx_power_level;
148 switch (tx_power_level) {
149 case sl4n_ble::kAdvSettingsTxPowerLevelUltraLowInt: tx_power_level =
150 bluetooth::AdvertiseSettings::TxPowerLevel::TX_POWER_LEVEL_ULTRA_LOW;
151 case sl4n_ble::kAdvSettingsTxPowerLevelLowInt: tx_power_level =
152 bluetooth::AdvertiseSettings::TxPowerLevel::TX_POWER_LEVEL_LOW;
153 case sl4n_ble::kAdvSettingsTxPowerLevelMediumInt: tx_power_level =
154 bluetooth::AdvertiseSettings::TxPowerLevel::TX_POWER_LEVEL_MEDIUM;
155 case sl4n_ble::kAdvSettingsTxPowerLevelHighInt: tx_power_level =
156 bluetooth::AdvertiseSettings::TxPowerLevel::TX_POWER_LEVEL_HIGH;
157 default :
158 LOG(ERROR) << sl4n::kTagStr <<
159 ": Input tx power level is outside the accepted values";
160 return std::make_tuple(
161 sl4n::kFailedCounterInt, sl4n_error_codes::kFailInt);
162 }
163
164 bluetooth::AdvertiseSettings adv_settings = bluetooth::AdvertiseSettings(
165 adv_mode, adv_timeout, adv_tx_power_level, is_connectable);
166 adv_settings_map[adv_settings_count] = adv_settings;
167 int adv_settings_id = adv_settings_count;
168 adv_settings_count++;
169 return std::make_tuple(adv_settings_id, sl4n_error_codes::kPassInt);
170 }
171
BluetoothBinderFacade()172 BluetoothBinderFacade::BluetoothBinderFacade() {
173 adv_settings_count = 0;
174 manu_data_count = 0;
175 }
176