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 #ifndef UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_ 18 #define UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_ 19 20 #include <string> 21 22 #include <android/hardware/boot/1.0/IBootControl.h> 23 24 #include "update_engine/common/boot_control.h" 25 26 namespace chromeos_update_engine { 27 28 // The Android implementation of the BootControlInterface. This implementation 29 // uses the libhardware's boot_control HAL to access the bootloader. 30 class BootControlAndroid : public BootControlInterface { 31 public: 32 BootControlAndroid() = default; 33 ~BootControlAndroid() = default; 34 35 // Load boot_control HAL implementation using libhardware and 36 // initializes it. Returns false if an error occurred. 37 bool Init(); 38 39 // BootControlInterface overrides. 40 unsigned int GetNumSlots() const override; 41 BootControlInterface::Slot GetCurrentSlot() const override; 42 bool GetPartitionDevice(const std::string& partition_name, 43 BootControlInterface::Slot slot, 44 std::string* device) const override; 45 bool IsSlotBootable(BootControlInterface::Slot slot) const override; 46 bool MarkSlotUnbootable(BootControlInterface::Slot slot) override; 47 bool SetActiveBootSlot(BootControlInterface::Slot slot) override; 48 bool MarkBootSuccessfulAsync(base::Callback<void(bool)> callback) override; 49 50 private: 51 ::android::sp<::android::hardware::boot::V1_0::IBootControl> module_; 52 53 DISALLOW_COPY_AND_ASSIGN(BootControlAndroid); 54 }; 55 56 } // namespace chromeos_update_engine 57 58 #endif // UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_ 59