1 /** 2 * Copyright (C) 2018 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.radio.bands; 18 19 import android.hardware.radio.RadioManager.AmBandDescriptor; 20 import android.hardware.radio.RadioManager.BandDescriptor; 21 import android.hardware.radio.RadioManager.FmBandDescriptor; 22 import android.os.Parcel; 23 import android.os.Parcelable; 24 25 import androidx.annotation.NonNull; 26 import androidx.annotation.Nullable; 27 28 import com.android.car.radio.util.Log; 29 30 import java.util.ArrayList; 31 import java.util.Collections; 32 import java.util.Comparator; 33 import java.util.List; 34 import java.util.Objects; 35 36 /** 37 * Regional configuration for all radio technologies wrapped in a single object. 38 */ 39 public final class RegionConfig implements Parcelable { 40 private static final String TAG = "BcRadioApp.region"; 41 42 private final List<ProgramType> mSupported; 43 private final List<BandDescriptor> mAmConfig; 44 private final List<BandDescriptor> mFmConfig; 45 RegionConfig(@ullable List<BandDescriptor> amFmConfig)46 public RegionConfig(@Nullable List<BandDescriptor> amFmConfig) { 47 mAmConfig = new ArrayList<>(); 48 mFmConfig = new ArrayList<>(); 49 if (amFmConfig == null) { 50 mSupported = new ArrayList<>(); 51 return; 52 } 53 54 for (BandDescriptor band : amFmConfig) { 55 if (band instanceof AmBandDescriptor) { 56 mAmConfig.add(band); 57 } else if (band instanceof FmBandDescriptor) { 58 mFmConfig.add(band); 59 } else { 60 Log.w(TAG, "Unknown band type: " + band); 61 } 62 } 63 64 Comparator<BandDescriptor> cmp = (BandDescriptor a, BandDescriptor b) -> 65 a.getLowerLimit() - b.getLowerLimit(); 66 Collections.sort(mAmConfig, cmp); 67 Collections.sort(mFmConfig, cmp); 68 mSupported = createSupportedProgramTypes(); 69 } 70 RegionConfig(@onNull Parcel in)71 private RegionConfig(@NonNull Parcel in) { 72 mAmConfig = in.createTypedArrayList(BandDescriptor.CREATOR); 73 mFmConfig = in.createTypedArrayList(BandDescriptor.CREATOR); 74 mSupported = createSupportedProgramTypes(); 75 } 76 77 @NonNull createSupportedProgramTypes()78 private List<ProgramType> createSupportedProgramTypes() { 79 List<ProgramType> supported = new ArrayList<>(); 80 if (!mAmConfig.isEmpty()) supported.add(ProgramType.AM); 81 if (!mFmConfig.isEmpty()) supported.add(ProgramType.FM); 82 return supported; 83 } 84 85 @NonNull getSupportedProgramTypes()86 public List<ProgramType> getSupportedProgramTypes() { 87 return mSupported; 88 } 89 90 @NonNull getAmConfig()91 public List<BandDescriptor> getAmConfig() { 92 return mAmConfig; 93 } 94 95 @NonNull getFmConfig()96 public List<BandDescriptor> getFmConfig() { 97 return mFmConfig; 98 } 99 100 @Override toString()101 public String toString() { 102 return "RegionConfig{AM=" + mAmConfig + ", FM=" + mFmConfig + "}"; 103 } 104 105 @Override hashCode()106 public int hashCode() { 107 return Objects.hash(mAmConfig, mFmConfig); 108 } 109 110 @Override equals(Object obj)111 public boolean equals(Object obj) { 112 if (this == obj) return true; 113 if (!(obj instanceof RegionConfig)) return false; 114 RegionConfig other = (RegionConfig) obj; 115 if (!mAmConfig.equals(other.mAmConfig)) return false; 116 if (!mFmConfig.equals(other.mFmConfig)) return false; 117 return true; 118 } 119 120 @Override writeToParcel(Parcel dest, int flags)121 public void writeToParcel(Parcel dest, int flags) { 122 dest.writeTypedList(mAmConfig); 123 dest.writeTypedList(mFmConfig); 124 } 125 126 @Override describeContents()127 public int describeContents() { 128 return 0; 129 } 130 131 public static final Parcelable.Creator<RegionConfig> CREATOR = 132 new Parcelable.Creator<RegionConfig>() { 133 public RegionConfig createFromParcel(Parcel in) { 134 return new RegionConfig(in); 135 } 136 137 public RegionConfig[] newArray(int size) { 138 return new RegionConfig[size]; 139 } 140 }; 141 } 142