Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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.car.hal; |
| 18 | |
Keun-young Park | e54ac27 | 2016-02-16 19:02:18 -0800 | [diff] [blame] | 19 | import android.car.hardware.radio.CarRadioEvent; |
| 20 | import android.car.hardware.radio.CarRadioPreset; |
Keun-young Park | ba48548 | 2016-03-24 13:24:31 -0700 | [diff] [blame] | 21 | import android.os.ServiceSpecificException; |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 22 | import android.util.Log; |
| 23 | import android.hardware.radio.RadioManager; |
| 24 | |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 25 | import com.android.car.CarLog; |
| 26 | import com.android.car.vehiclenetwork.VehicleNetworkConsts; |
| 27 | import com.android.car.vehiclenetwork.VehicleNetworkConsts.VehicleValueType; |
| 28 | import com.android.car.vehiclenetwork.VehicleNetworkProto.VehiclePropConfig; |
| 29 | import com.android.car.vehiclenetwork.VehicleNetworkProto.VehiclePropValue; |
| 30 | import com.android.car.vehiclenetwork.VehiclePropValueUtil; |
| 31 | |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 32 | import java.util.LinkedList; |
| 33 | import java.util.List; |
| 34 | import java.io.PrintWriter; |
| 35 | |
| 36 | /** |
| 37 | * This class exposes the Radio related features in the HAL layer. |
| 38 | * |
| 39 | * The current set of features support radio presets. The rest of the radio functionality is already |
| 40 | * covered under RadioManager API. |
| 41 | */ |
| 42 | public class RadioHalService extends HalServiceBase { |
Vitalii Tomkiv | 1b1247b | 2016-09-30 11:27:19 -0700 | [diff] [blame] | 43 | public static boolean DBG = false; |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 44 | public static String TAG = CarLog.TAG_HAL + ".RadioHalService"; |
| 45 | |
| 46 | private int mPresetCount = 0; |
| 47 | private VehicleHal mHal; |
| 48 | private RadioListener mListener; |
| 49 | |
| 50 | public interface RadioListener { |
| 51 | public void onEvent(CarRadioEvent event); |
| 52 | } |
| 53 | |
| 54 | public RadioHalService(VehicleHal hal) { |
| 55 | mHal = hal; |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public synchronized void init() { |
| 60 | } |
| 61 | |
| 62 | @Override |
| 63 | public synchronized void release() { |
| 64 | mListener = null; |
| 65 | } |
| 66 | |
| 67 | @Override |
| 68 | public synchronized List<VehiclePropConfig> takeSupportedProperties( |
| 69 | List<VehiclePropConfig> allProperties) { |
| 70 | List<VehiclePropConfig> supported = new LinkedList<VehiclePropConfig>(); |
| 71 | for (VehiclePropConfig p : allProperties) { |
| 72 | if (handleRadioProperty(p)) { |
| 73 | supported.add(p); |
| 74 | } |
| 75 | } |
| 76 | return supported; |
| 77 | } |
| 78 | |
| 79 | @Override |
| 80 | public void handleHalEvents(List<VehiclePropValue> values) { |
| 81 | if (DBG) { |
| 82 | Log.d(TAG, "handleHalEvents"); |
| 83 | } |
| 84 | RadioHalService.RadioListener radioListener = null; |
| 85 | synchronized (this) { |
| 86 | radioListener = mListener; |
| 87 | } |
| 88 | |
| 89 | if (radioListener == null) { |
| 90 | Log.e(TAG, "radio listener is null, ignoring event: " + values); |
| 91 | return; |
| 92 | } |
| 93 | |
| 94 | for (VehiclePropValue v : values) { |
| 95 | CarRadioEvent radioEvent = createCarRadioEvent(v); |
| 96 | if (radioEvent != null) { |
| 97 | if (DBG) { |
| 98 | Log.d(TAG, "Sending event to listener: " + radioEvent); |
| 99 | } |
| 100 | radioListener.onEvent(radioEvent); |
| 101 | } else { |
| 102 | Log.w(TAG, "Value conversion failed: " + v); |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public void dump(PrintWriter writer) { |
| 109 | writer.println("*RadioHal*"); |
| 110 | writer.println("**Supported properties**"); |
| 111 | writer.println(VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET); |
| 112 | if (mListener != null) { |
| 113 | writer.println("Hal service registered."); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | public synchronized void registerListener(RadioListener listener) { |
| 118 | if (DBG) { |
| 119 | Log.d(TAG, "registerListener"); |
| 120 | } |
| 121 | mListener = listener; |
| 122 | |
| 123 | // Subscribe to all radio properties. |
| 124 | mHal.subscribeProperty(this, VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET, 0); |
| 125 | } |
| 126 | |
| 127 | public synchronized void unregisterListener() { |
| 128 | if (DBG) { |
| 129 | Log.d(TAG, "unregisterListener"); |
| 130 | } |
| 131 | mListener = null; |
| 132 | |
| 133 | // Unsubscribe from all propreties. |
| 134 | mHal.unsubscribeProperty(this, VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET); |
| 135 | } |
| 136 | |
| 137 | public synchronized int getPresetCount() { |
| 138 | Log.d(TAG, "get preset count: " + mPresetCount); |
| 139 | return mPresetCount; |
| 140 | } |
| 141 | |
| 142 | public CarRadioPreset getRadioPreset(int presetNumber) { |
| 143 | // Check if the preset number is out of range. We should return NULL if that is the case. |
| 144 | if (DBG) { |
| 145 | Log.d(TAG, "getRadioPreset called with preset number " + presetNumber); |
| 146 | } |
| 147 | if (!isValidPresetNumber(presetNumber)) { |
| 148 | throw new IllegalArgumentException("Preset number not valid: " + presetNumber); |
| 149 | } |
| 150 | |
| 151 | int[] presetArray = {presetNumber, 0, 0, 0}; |
| 152 | VehiclePropValue presetNumberValue = |
| 153 | VehiclePropValueUtil.createIntVectorValue( |
| 154 | VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET, presetArray, 0); |
| 155 | |
Keun-young Park | ba48548 | 2016-03-24 13:24:31 -0700 | [diff] [blame] | 156 | VehiclePropValue presetConfig; |
| 157 | try { |
| 158 | presetConfig = mHal.getVehicleNetwork().getProperty(presetNumberValue); |
| 159 | } catch (ServiceSpecificException e) { |
| 160 | Log.e(TAG, "property VEHICLE_PROPERTY_RADIO_PRESET not ready"); |
| 161 | return null; |
| 162 | } |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 163 | // Sanity check the output from HAL. |
| 164 | if (presetConfig.getInt32ValuesCount() != 4) { |
| 165 | Log.e(TAG, "Return value does not have 4 elements: " + |
| 166 | presetConfig.getInt32ValuesList()); |
| 167 | throw new IllegalStateException( |
| 168 | "Invalid preset returned from service: " + presetConfig.getInt32ValuesList()); |
| 169 | } |
| 170 | |
| 171 | int retPresetNumber = presetConfig.getInt32Values(0); |
| 172 | int retBand = presetConfig.getInt32Values(1); |
| 173 | int retChannel = presetConfig.getInt32Values(2); |
| 174 | int retSubChannel = presetConfig.getInt32Values(3); |
| 175 | if (retPresetNumber != presetNumber) { |
| 176 | Log.e(TAG, "Preset number is not the same: " + presetNumber + " vs " + retPresetNumber); |
| 177 | return null; |
| 178 | } |
| 179 | if (!isValidBand(retBand)) return null; |
| 180 | |
| 181 | // Return the actual config. |
| 182 | CarRadioPreset retConfig = |
| 183 | new CarRadioPreset(retPresetNumber, retBand, retChannel, retSubChannel); |
| 184 | if (DBG) { |
| 185 | Log.d(TAG, "Preset obtained: " + retConfig); |
| 186 | } |
| 187 | return retConfig; |
| 188 | } |
| 189 | |
| 190 | public boolean setRadioPreset(CarRadioPreset preset) { |
| 191 | if (DBG) { |
| 192 | Log.d(TAG, "setRadioPreset with config " + preset); |
| 193 | } |
| 194 | |
| 195 | if (!isValidPresetNumber(preset.getPresetNumber()) || |
| 196 | !isValidBand(preset.getBand())) { |
| 197 | return false; |
| 198 | } |
| 199 | |
| 200 | VehiclePropValue setPresetValue = |
| 201 | VehiclePropValueUtil.createBuilder( |
| 202 | VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET, |
| 203 | VehicleValueType.VEHICLE_VALUE_TYPE_INT32_VEC4, 0) |
| 204 | .addInt32Values(preset.getPresetNumber()) |
| 205 | .addInt32Values(preset.getBand()) |
| 206 | .addInt32Values(preset.getChannel()) |
| 207 | .addInt32Values(preset.getSubChannel()) |
| 208 | .build(); |
Keun-young Park | e78bf53 | 2016-04-25 18:59:22 -0700 | [diff] [blame] | 209 | try { |
| 210 | mHal.getVehicleNetwork().setProperty(setPresetValue); |
| 211 | } catch (ServiceSpecificException e) { |
| 212 | Log.e(CarLog.TAG_POWER, "cannot set to RADIO_PRESET", e); |
| 213 | return false; |
| 214 | } |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 215 | return true; |
| 216 | } |
| 217 | |
| 218 | private boolean isValidPresetNumber(int presetNumber) { |
| 219 | // Check for preset number. |
| 220 | if (presetNumber < VehicleNetworkConsts.VehicleRadioConsts.VEHICLE_RADIO_PRESET_MIN_VALUE |
| 221 | || presetNumber > mPresetCount) { |
| 222 | Log.e(TAG, "Preset number not in range (1, " + mPresetCount + ") - " + presetNumber); |
| 223 | return false; |
| 224 | } |
| 225 | return true; |
| 226 | } |
| 227 | |
| 228 | private boolean isValidBand(int band) { |
| 229 | // Check for band info. |
| 230 | if (band != RadioManager.BAND_AM && |
| 231 | band != RadioManager.BAND_FM && |
| 232 | band != RadioManager.BAND_FM_HD && |
| 233 | band != RadioManager.BAND_AM_HD) { |
| 234 | Log.e(TAG, "Preset band is not valid: " + band); |
| 235 | return false; |
| 236 | } |
| 237 | return true; |
| 238 | } |
| 239 | |
| 240 | private boolean handleRadioProperty(VehiclePropConfig property) { |
| 241 | switch (property.getProp()) { |
| 242 | case VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET: |
| 243 | // Extract the count of presets. |
Keun-young Park | 0727f95 | 2015-12-21 14:30:07 -0800 | [diff] [blame] | 244 | mPresetCount = property.getConfigArray(0); |
Sanket Agarwal | 3cf096a | 2015-10-13 14:46:31 -0700 | [diff] [blame] | 245 | Log.d(TAG, "Read presets count: " + mPresetCount); |
| 246 | return true; |
| 247 | default: |
| 248 | return false; |
| 249 | } |
| 250 | // Should never come here. |
| 251 | } |
| 252 | |
| 253 | private CarRadioEvent createCarRadioEvent(VehiclePropValue v) { |
| 254 | switch (v.getProp()) { |
| 255 | case VehicleNetworkConsts.VEHICLE_PROPERTY_RADIO_PRESET: |
| 256 | if (v.getInt32ValuesCount() != 4) { |
| 257 | Log.e(TAG, "Returned a wrong array size: " + v.getInt32ValuesCount()); |
| 258 | return null; |
| 259 | } |
| 260 | |
| 261 | Integer intValues[] = new Integer[4]; |
| 262 | v.getInt32ValuesList().toArray(intValues); |
| 263 | |
| 264 | // Verify the correctness of the values. |
| 265 | if (!isValidPresetNumber(intValues[0]) && !isValidBand(intValues[1])) { |
| 266 | return null; |
| 267 | } |
| 268 | |
| 269 | CarRadioPreset preset = |
| 270 | new CarRadioPreset(intValues[0], intValues[1], intValues[2], intValues[3]); |
| 271 | CarRadioEvent event = new CarRadioEvent(CarRadioEvent.RADIO_PRESET, preset); |
| 272 | return event; |
| 273 | default: |
| 274 | Log.e(TAG, "createCarRadioEvent: Value not supported as event: " + v); |
| 275 | return null; |
| 276 | } |
| 277 | } |
| 278 | } |