Aurimas Liutikas | 88c7ff1 | 2023-08-10 12:42:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2023 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.recoverysystem.hal; |
| 18 | |
| 19 | import android.hardware.boot.IBootControl; |
| 20 | import android.hardware.boot.V1_0.CommandResult; |
| 21 | import android.os.IBinder; |
| 22 | import android.os.RemoteException; |
| 23 | import android.util.Slog; |
| 24 | |
| 25 | public class BootControlHIDL implements IBootControl { |
| 26 | private static final String TAG = "BootControlHIDL"; |
| 27 | |
| 28 | final android.hardware.boot.V1_0.IBootControl v1_hal; |
| 29 | final android.hardware.boot.V1_1.IBootControl v1_1_hal; |
| 30 | final android.hardware.boot.V1_2.IBootControl v1_2_hal; |
| 31 | |
| 32 | public static boolean isServicePresent() { |
| 33 | try { |
| 34 | android.hardware.boot.V1_0.IBootControl.getService(true); |
| 35 | } catch (RemoteException e) { |
| 36 | return false; |
| 37 | } |
| 38 | return true; |
| 39 | } |
| 40 | |
| 41 | public static boolean isV1_2ServicePresent() { |
| 42 | try { |
| 43 | android.hardware.boot.V1_2.IBootControl.getService(true); |
| 44 | } catch (RemoteException e) { |
| 45 | return false; |
| 46 | } |
| 47 | return true; |
| 48 | } |
| 49 | |
| 50 | public static BootControlHIDL getService() throws RemoteException { |
| 51 | android.hardware.boot.V1_0.IBootControl v1_hal = |
| 52 | android.hardware.boot.V1_0.IBootControl.getService(true); |
| 53 | android.hardware.boot.V1_1.IBootControl v1_1_hal = |
| 54 | android.hardware.boot.V1_1.IBootControl.castFrom(v1_hal); |
| 55 | android.hardware.boot.V1_2.IBootControl v1_2_hal = |
| 56 | android.hardware.boot.V1_2.IBootControl.castFrom(v1_hal); |
| 57 | return new BootControlHIDL(v1_hal, v1_1_hal, v1_2_hal); |
| 58 | } |
| 59 | |
| 60 | private BootControlHIDL(android.hardware.boot.V1_0.IBootControl v1_hal, |
| 61 | android.hardware.boot.V1_1.IBootControl v1_1_hal, |
| 62 | android.hardware.boot.V1_2.IBootControl v1_2_hal) throws RemoteException { |
| 63 | this.v1_hal = v1_hal; |
| 64 | this.v1_1_hal = v1_1_hal; |
| 65 | this.v1_2_hal = v1_2_hal; |
| 66 | if (v1_hal == null) { |
| 67 | throw new RemoteException("Failed to find V1.0 BootControl HIDL"); |
| 68 | } |
| 69 | if (v1_2_hal != null) { |
| 70 | Slog.i(TAG, "V1.2 version of BootControl HIDL HAL available, using V1.2"); |
| 71 | } else if (v1_1_hal != null) { |
| 72 | Slog.i(TAG, "V1.1 version of BootControl HIDL HAL available, using V1.1"); |
| 73 | } else { |
| 74 | Slog.i(TAG, "V1.0 version of BootControl HIDL HAL available, using V1.0"); |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public IBinder asBinder() { |
| 80 | return null; |
| 81 | } |
| 82 | |
| 83 | @Override |
| 84 | public int getActiveBootSlot() throws RemoteException { |
| 85 | if (v1_2_hal == null) { |
| 86 | throw new RemoteException("getActiveBootSlot() requires V1.2 BootControl HAL"); |
| 87 | } |
| 88 | return v1_2_hal.getActiveBootSlot(); |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public int getCurrentSlot() throws RemoteException { |
| 93 | return v1_hal.getCurrentSlot(); |
| 94 | } |
| 95 | |
| 96 | @Override |
| 97 | public int getNumberSlots() throws RemoteException { |
| 98 | return v1_hal.getNumberSlots(); |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public int getSnapshotMergeStatus() throws RemoteException { |
| 103 | if (v1_1_hal == null) { |
| 104 | throw new RemoteException("getSnapshotMergeStatus() requires V1.1 BootControl HAL"); |
| 105 | } |
| 106 | return v1_1_hal.getSnapshotMergeStatus(); |
| 107 | } |
| 108 | |
| 109 | @Override |
| 110 | public String getSuffix(int slot) throws RemoteException { |
| 111 | return v1_hal.getSuffix(slot); |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public boolean isSlotBootable(int slot) throws RemoteException { |
| 116 | int ret = v1_hal.isSlotBootable(slot); |
| 117 | if (ret == -1) { |
| 118 | throw new RemoteException( |
| 119 | "isSlotBootable() failed, Slot %d might be invalid.".formatted(slot)); |
| 120 | } |
| 121 | return ret != 0; |
| 122 | } |
| 123 | |
| 124 | @Override |
| 125 | public boolean isSlotMarkedSuccessful(int slot) throws RemoteException { |
| 126 | int ret = v1_hal.isSlotMarkedSuccessful(slot); |
| 127 | if (ret == -1) { |
| 128 | throw new RemoteException( |
| 129 | "isSlotMarkedSuccessful() failed, Slot %d might be invalid.".formatted(slot)); |
| 130 | } |
| 131 | return ret != 0; |
| 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public void markBootSuccessful() throws RemoteException { |
| 136 | CommandResult res = v1_hal.markBootSuccessful(); |
| 137 | if (!res.success) { |
| 138 | throw new RemoteException("Error markBootSuccessful() " + res.errMsg); |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | @Override |
| 143 | public void setActiveBootSlot(int slot) throws RemoteException { |
| 144 | CommandResult res = v1_hal.setActiveBootSlot(slot); |
| 145 | if (!res.success) { |
| 146 | throw new RemoteException("Error setActiveBootSlot(%d) %s".formatted(slot, res.errMsg)); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public void setSlotAsUnbootable(int slot) throws RemoteException { |
| 152 | CommandResult res = v1_hal.setSlotAsUnbootable(slot); |
| 153 | if (!res.success) { |
| 154 | throw new RemoteException( |
| 155 | "Error setSlotAsUnbootable(%d) %s".formatted(slot, res.errMsg)); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | @Override |
| 160 | public void setSnapshotMergeStatus(int status) throws RemoteException { |
| 161 | if (v1_1_hal == null) { |
| 162 | throw new RemoteException("getSnapshotMergeStatus() requires V1.1 BootControl HAL"); |
| 163 | } |
| 164 | if (!v1_1_hal.setSnapshotMergeStatus(status)) { |
| 165 | throw new RemoteException("Error setSnapshotMergeStatus(%d)".formatted(status)); |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | @Override |
| 170 | public int getInterfaceVersion() throws RemoteException { |
| 171 | return 1; |
| 172 | } |
| 173 | |
| 174 | @Override |
| 175 | public String getInterfaceHash() throws RemoteException { |
| 176 | return v1_hal.interfaceDescriptor(); |
| 177 | } |
| 178 | } |