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 <map> 21 #include <memory> 22 #include <string> 23 24 #include <android/hardware/boot/1.0/IBootControl.h> 25 #include <liblp/builder.h> 26 27 #include "update_engine/common/boot_control.h" 28 #include "update_engine/common/dynamic_partition_control_interface.h" 29 #include "update_engine/dynamic_partition_control_android.h" 30 31 namespace chromeos_update_engine { 32 33 // The Android implementation of the BootControlInterface. This implementation 34 // uses the libhardware's boot_control HAL to access the bootloader. 35 class BootControlAndroid : public BootControlInterface { 36 public: 37 BootControlAndroid() = default; 38 ~BootControlAndroid() = default; 39 40 // Load boot_control HAL implementation using libhardware and 41 // initializes it. Returns false if an error occurred. 42 bool Init(); 43 44 // BootControlInterface overrides. 45 unsigned int GetNumSlots() const override; 46 BootControlInterface::Slot GetCurrentSlot() const override; 47 bool GetPartitionDevice(const std::string& partition_name, 48 BootControlInterface::Slot slot, 49 bool not_in_payload, 50 std::string* device, 51 bool* is_dynamic) const override; 52 bool GetPartitionDevice(const std::string& partition_name, 53 BootControlInterface::Slot slot, 54 std::string* device) const override; 55 bool IsSlotBootable(BootControlInterface::Slot slot) const override; 56 bool MarkSlotUnbootable(BootControlInterface::Slot slot) override; 57 bool SetActiveBootSlot(BootControlInterface::Slot slot) override; 58 bool MarkBootSuccessfulAsync(base::Callback<void(bool)> callback) override; 59 bool IsSlotMarkedSuccessful(BootControlInterface::Slot slot) const override; 60 DynamicPartitionControlInterface* GetDynamicPartitionControl() override; 61 62 private: 63 ::android::sp<::android::hardware::boot::V1_0::IBootControl> module_; 64 std::unique_ptr<DynamicPartitionControlAndroid> dynamic_control_; 65 66 friend class BootControlAndroidTest; 67 68 DISALLOW_COPY_AND_ASSIGN(BootControlAndroid); 69 }; 70 71 } // namespace chromeos_update_engine 72 73 #endif // UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_ 74