Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 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 | package com.android.systemui.statusbar.car; |
| 18 | |
| 19 | import android.bluetooth.BluetoothAdapter; |
| 20 | import android.bluetooth.BluetoothDevice; |
| 21 | import android.bluetooth.BluetoothHeadsetClient; |
| 22 | import android.bluetooth.BluetoothProfile; |
| 23 | import android.bluetooth.BluetoothProfile.ServiceListener; |
| 24 | import android.content.BroadcastReceiver; |
| 25 | import android.content.Context; |
| 26 | import android.content.Intent; |
| 27 | import android.content.IntentFilter; |
| 28 | import android.os.Bundle; |
| 29 | import android.util.Log; |
| 30 | |
| 31 | import com.android.systemui.statusbar.policy.BatteryController; |
| 32 | |
| 33 | import java.io.FileDescriptor; |
| 34 | import java.io.PrintWriter; |
| 35 | import java.util.ArrayList; |
| 36 | |
| 37 | /** |
| 38 | * A {@link BatteryController} that is specific to the Auto use-case. For Auto, the battery icon |
| 39 | * displays the battery status of a device that is connected via bluetooth and not the system's |
| 40 | * battery. |
| 41 | */ |
| 42 | public class CarBatteryController extends BroadcastReceiver implements BatteryController { |
| 43 | private static final String TAG = "CarBatteryController"; |
| 44 | |
| 45 | // According to the Bluetooth HFP 1.5 specification, battery levels are indicated by a |
| 46 | // value from 1-5, where these values represent the following: |
| 47 | // 0%% - 0, 1-25%% - 1, 26-50%% - 2, 51-75%% - 3, 76-99%% - 4, 100%% - 5 |
| 48 | // As a result, set the level as the average within that range. |
| 49 | private static final int BATTERY_LEVEL_EMPTY = 0; |
| 50 | private static final int BATTERY_LEVEL_1 = 12; |
| 51 | private static final int BATTERY_LEVEL_2 = 28; |
| 52 | private static final int BATTERY_LEVEL_3 = 63; |
| 53 | private static final int BATTERY_LEVEL_4 = 87; |
| 54 | private static final int BATTERY_LEVEL_FULL = 100; |
| 55 | |
| 56 | private static final int INVALID_BATTERY_LEVEL = -1; |
| 57 | |
| 58 | private final Context mContext; |
| 59 | |
| 60 | private final BluetoothAdapter mAdapter = BluetoothAdapter.getDefaultAdapter(); |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 61 | private final ArrayList<BatteryStateChangeCallback> mChangeCallbacks = new ArrayList<>(); |
Brad Stenning | 8d1a51c | 2018-11-20 17:34:16 -0800 | [diff] [blame] | 62 | private BluetoothHeadsetClient mBluetoothHeadsetClient; |
| 63 | private final ServiceListener mHfpServiceListener = new ServiceListener() { |
| 64 | @Override |
| 65 | public void onServiceConnected(int profile, BluetoothProfile proxy) { |
| 66 | if (profile == BluetoothProfile.HEADSET_CLIENT) { |
| 67 | mBluetoothHeadsetClient = (BluetoothHeadsetClient) proxy; |
| 68 | } |
| 69 | } |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 70 | |
Brad Stenning | 8d1a51c | 2018-11-20 17:34:16 -0800 | [diff] [blame] | 71 | @Override |
| 72 | public void onServiceDisconnected(int profile) { |
| 73 | if (profile == BluetoothProfile.HEADSET_CLIENT) { |
| 74 | mBluetoothHeadsetClient = null; |
| 75 | } |
| 76 | } |
| 77 | }; |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 78 | private int mLevel; |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 79 | private BatteryViewHandler mBatteryViewHandler; |
| 80 | |
| 81 | public CarBatteryController(Context context) { |
| 82 | mContext = context; |
| 83 | |
Sam Hurst | b3e7386 | 2016-05-31 10:35:17 -0700 | [diff] [blame] | 84 | if (mAdapter == null) { |
Brad Stenning | 8d1a51c | 2018-11-20 17:34:16 -0800 | [diff] [blame] | 85 | return; |
Sam Hurst | b3e7386 | 2016-05-31 10:35:17 -0700 | [diff] [blame] | 86 | } |
| 87 | |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 88 | mAdapter.getProfileProxy(context.getApplicationContext(), mHfpServiceListener, |
| 89 | BluetoothProfile.HEADSET_CLIENT); |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| 94 | pw.println("CarBatteryController state:"); |
| 95 | pw.print(" mLevel="); |
| 96 | pw.println(mLevel); |
| 97 | } |
| 98 | |
| 99 | @Override |
| 100 | public void setPowerSaveMode(boolean powerSave) { |
| 101 | // No-op. No power save mode for the car. |
| 102 | } |
| 103 | |
| 104 | @Override |
Jason Monk | 8852905 | 2016-11-04 13:29:58 -0400 | [diff] [blame] | 105 | public void addCallback(BatteryController.BatteryStateChangeCallback cb) { |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 106 | mChangeCallbacks.add(cb); |
| 107 | |
| 108 | // There is no way to know if the phone is plugged in or charging via bluetooth, so pass |
| 109 | // false for these values. |
| 110 | cb.onBatteryLevelChanged(mLevel, false /* pluggedIn */, false /* charging */); |
| 111 | cb.onPowerSaveChanged(false /* isPowerSave */); |
| 112 | } |
| 113 | |
| 114 | @Override |
Jason Monk | 8852905 | 2016-11-04 13:29:58 -0400 | [diff] [blame] | 115 | public void removeCallback(BatteryController.BatteryStateChangeCallback cb) { |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 116 | mChangeCallbacks.remove(cb); |
| 117 | } |
| 118 | |
| 119 | public void addBatteryViewHandler(BatteryViewHandler batteryViewHandler) { |
| 120 | mBatteryViewHandler = batteryViewHandler; |
| 121 | } |
| 122 | |
| 123 | public void startListening() { |
| 124 | IntentFilter filter = new IntentFilter(); |
| 125 | filter.addAction(BluetoothHeadsetClient.ACTION_CONNECTION_STATE_CHANGED); |
| 126 | filter.addAction(BluetoothHeadsetClient.ACTION_AG_EVENT); |
| 127 | mContext.registerReceiver(this, filter); |
| 128 | } |
| 129 | |
| 130 | public void stopListening() { |
| 131 | mContext.unregisterReceiver(this); |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public void onReceive(Context context, Intent intent) { |
| 136 | String action = intent.getAction(); |
| 137 | |
| 138 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 139 | Log.d(TAG, "onReceive(). action: " + action); |
| 140 | } |
| 141 | |
| 142 | if (BluetoothHeadsetClient.ACTION_AG_EVENT.equals(action)) { |
| 143 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 144 | Log.d(TAG, "Received ACTION_AG_EVENT"); |
| 145 | } |
| 146 | |
| 147 | int batteryLevel = intent.getIntExtra(BluetoothHeadsetClient.EXTRA_BATTERY_LEVEL, |
| 148 | INVALID_BATTERY_LEVEL); |
| 149 | |
| 150 | updateBatteryLevel(batteryLevel); |
| 151 | |
| 152 | if (batteryLevel != INVALID_BATTERY_LEVEL && mBatteryViewHandler != null) { |
| 153 | mBatteryViewHandler.showBatteryView(); |
| 154 | } |
| 155 | } else if (BluetoothHeadsetClient.ACTION_CONNECTION_STATE_CHANGED.equals(action)) { |
| 156 | int newState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1); |
| 157 | |
| 158 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 159 | int oldState = intent.getIntExtra(BluetoothProfile.EXTRA_PREVIOUS_STATE, -1); |
| 160 | Log.d(TAG, "ACTION_CONNECTION_STATE_CHANGED event: " |
| 161 | + oldState + " -> " + newState); |
| 162 | |
| 163 | } |
| 164 | BluetoothDevice device = |
Brad Stenning | 8d1a51c | 2018-11-20 17:34:16 -0800 | [diff] [blame] | 165 | (BluetoothDevice) intent.getExtra(BluetoothDevice.EXTRA_DEVICE); |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 166 | updateBatteryIcon(device, newState); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Converts the battery level to a percentage that can be displayed on-screen and notifies |
| 172 | * any {@link BatteryStateChangeCallback}s of this. |
| 173 | */ |
| 174 | private void updateBatteryLevel(int batteryLevel) { |
| 175 | if (batteryLevel == INVALID_BATTERY_LEVEL) { |
| 176 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 177 | Log.d(TAG, "Battery level invalid. Ignoring."); |
| 178 | } |
| 179 | return; |
| 180 | } |
| 181 | |
| 182 | // The battery level is a value between 0-5. Let the default battery level be 0. |
| 183 | switch (batteryLevel) { |
| 184 | case 5: |
| 185 | mLevel = BATTERY_LEVEL_FULL; |
| 186 | break; |
| 187 | case 4: |
| 188 | mLevel = BATTERY_LEVEL_4; |
| 189 | break; |
| 190 | case 3: |
| 191 | mLevel = BATTERY_LEVEL_3; |
| 192 | break; |
| 193 | case 2: |
| 194 | mLevel = BATTERY_LEVEL_2; |
| 195 | break; |
| 196 | case 1: |
| 197 | mLevel = BATTERY_LEVEL_1; |
| 198 | break; |
| 199 | case 0: |
| 200 | default: |
| 201 | mLevel = BATTERY_LEVEL_EMPTY; |
| 202 | } |
| 203 | |
| 204 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 205 | Log.d(TAG, "Battery level: " + batteryLevel + "; setting mLevel as: " + mLevel); |
| 206 | } |
| 207 | |
| 208 | notifyBatteryLevelChanged(); |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * Updates the display of the battery icon depending on the given connection state from the |
| 213 | * given {@link BluetoothDevice}. |
| 214 | */ |
| 215 | private void updateBatteryIcon(BluetoothDevice device, int newState) { |
| 216 | if (newState == BluetoothProfile.STATE_CONNECTED) { |
| 217 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 218 | Log.d(TAG, "Device connected"); |
| 219 | } |
| 220 | |
| 221 | if (mBatteryViewHandler != null) { |
| 222 | mBatteryViewHandler.showBatteryView(); |
| 223 | } |
| 224 | |
| 225 | if (mBluetoothHeadsetClient == null || device == null) { |
| 226 | return; |
| 227 | } |
| 228 | |
| 229 | // Check if battery information is available and immediately update. |
| 230 | Bundle featuresBundle = mBluetoothHeadsetClient.getCurrentAgEvents(device); |
| 231 | if (featuresBundle == null) { |
| 232 | return; |
| 233 | } |
| 234 | |
| 235 | int batteryLevel = featuresBundle.getInt(BluetoothHeadsetClient.EXTRA_BATTERY_LEVEL, |
| 236 | INVALID_BATTERY_LEVEL); |
| 237 | updateBatteryLevel(batteryLevel); |
| 238 | } else if (newState == BluetoothProfile.STATE_DISCONNECTED) { |
| 239 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 240 | Log.d(TAG, "Device disconnected"); |
| 241 | } |
| 242 | |
| 243 | if (mBatteryViewHandler != null) { |
| 244 | mBatteryViewHandler.hideBatteryView(); |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | @Override |
Jason Monk | 98d7c7a | 2016-04-12 13:08:31 -0400 | [diff] [blame] | 250 | public void dispatchDemoCommand(String command, Bundle args) { |
| 251 | // TODO: Car demo mode. |
| 252 | } |
| 253 | |
| 254 | @Override |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 255 | public boolean isPowerSave() { |
| 256 | // Power save is not valid for the car, so always return false. |
| 257 | return false; |
| 258 | } |
| 259 | |
Lucas Dupin | 6edeb18 | 2019-09-25 13:39:21 -0700 | [diff] [blame] | 260 | @Override |
| 261 | public boolean isAodPowerSave() { |
| 262 | return false; |
| 263 | } |
| 264 | |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 265 | private void notifyBatteryLevelChanged() { |
| 266 | for (int i = 0, size = mChangeCallbacks.size(); i < size; i++) { |
| 267 | mChangeCallbacks.get(i) |
| 268 | .onBatteryLevelChanged(mLevel, false /* pluggedIn */, false /* charging */); |
| 269 | } |
| 270 | } |
| 271 | |
Brad Stenning | 8d1a51c | 2018-11-20 17:34:16 -0800 | [diff] [blame] | 272 | /** |
| 273 | * An interface indicating the container of a View that will display what the information |
| 274 | * in the {@link CarBatteryController}. |
| 275 | */ |
| 276 | public interface BatteryViewHandler { |
| 277 | void hideBatteryView(); |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 278 | |
Brad Stenning | 8d1a51c | 2018-11-20 17:34:16 -0800 | [diff] [blame] | 279 | void showBatteryView(); |
| 280 | } |
Anthony Chen | da62fdcd5 | 2016-04-06 16:15:14 -0700 | [diff] [blame] | 281 | |
| 282 | } |