Tomasz Wasilczyk | f58305d | 2017-12-28 14:03:15 -0800 | [diff] [blame] | 1 | /** |
| 2 | * Copyright (C) 2017 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.server.broadcastradio.hal2; |
| 18 | |
Tomasz Wasilczyk | 3b4465e | 2018-01-14 21:47:44 -0800 | [diff] [blame] | 19 | import android.annotation.NonNull; |
| 20 | import android.os.RemoteException; |
| 21 | |
Tomasz Wasilczyk | f58305d | 2017-12-28 14:03:15 -0800 | [diff] [blame] | 22 | enum FrequencyBand { |
| 23 | UNKNOWN, |
| 24 | FM, |
| 25 | AM_LW, |
| 26 | AM_MW, |
| 27 | AM_SW, |
| 28 | }; |
| 29 | |
| 30 | class Utils { |
| 31 | private static final String TAG = "BcRadio2Srv.utils"; |
| 32 | |
| 33 | static FrequencyBand getBand(int freq) { |
| 34 | // keep in sync with hardware/interfaces/broadcastradio/common/utils2x/Utils.cpp |
| 35 | if (freq < 30) return FrequencyBand.UNKNOWN; |
| 36 | if (freq < 500) return FrequencyBand.AM_LW; |
| 37 | if (freq < 1705) return FrequencyBand.AM_MW; |
| 38 | if (freq < 30000) return FrequencyBand.AM_SW; |
| 39 | if (freq < 60000) return FrequencyBand.UNKNOWN; |
| 40 | if (freq < 110000) return FrequencyBand.FM; |
| 41 | return FrequencyBand.UNKNOWN; |
| 42 | } |
Tomasz Wasilczyk | 3b4465e | 2018-01-14 21:47:44 -0800 | [diff] [blame] | 43 | |
| 44 | interface FuncThrowingRemoteException<T> { |
| 45 | T exec() throws RemoteException; |
| 46 | } |
| 47 | |
| 48 | static <T> T maybeRethrow(@NonNull FuncThrowingRemoteException<T> r) { |
| 49 | try { |
| 50 | return r.exec(); |
| 51 | } catch (RemoteException ex) { |
| 52 | ex.rethrowFromSystemServer(); |
| 53 | return null; // unreachable |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | interface VoidFuncThrowingRemoteException { |
| 58 | void exec() throws RemoteException; |
| 59 | } |
| 60 | |
| 61 | static void maybeRethrow(@NonNull VoidFuncThrowingRemoteException r) { |
| 62 | try { |
| 63 | r.exec(); |
| 64 | } catch (RemoteException ex) { |
| 65 | ex.rethrowFromSystemServer(); |
| 66 | } |
| 67 | } |
Tomasz Wasilczyk | f58305d | 2017-12-28 14:03:15 -0800 | [diff] [blame] | 68 | } |