From 8108e2513f8342444821c179d713982fcf931e98 Mon Sep 17 00:00:00 2001 From: David Anderson Date: Wed, 28 Aug 2019 15:24:07 -0700 Subject: Refactor boot_control into a separate library. This extracts the implementation of boot_control into a new library, libboot_control. The bootctrl.default module now wraps this library. This refactoring will allow us to re-use the same implementation in HIDL. Bug: 138861550 Test: mm bootctrl.default Change-Id: Ic0558da3c2d8e6f5ebec63a497825c24b51623b7 --- .../include/libboot_control/libboot_control.h | 58 ++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 boot_control/include/libboot_control/libboot_control.h (limited to 'boot_control/include/libboot_control/libboot_control.h') diff --git a/boot_control/include/libboot_control/libboot_control.h b/boot_control/include/libboot_control/libboot_control.h new file mode 100644 index 000000000..6582d0244 --- /dev/null +++ b/boot_control/include/libboot_control/libboot_control.h @@ -0,0 +1,58 @@ +// +// Copyright (C) 2019 The Android Open Source Project +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// + +#pragma once + +#include + +namespace android { +namespace bootable { + +// Helper library to implement the IBootControl HAL using the misc partition. +class BootControl { + public: + bool Init(); + unsigned int GetNumberSlots(); + unsigned int GetCurrentSlot(); + bool MarkBootSuccessful(); + bool SetActiveBootSlot(unsigned int slot); + bool SetSlotAsUnbootable(unsigned int slot); + bool SetSlotBootable(unsigned int slot); + bool IsSlotBootable(unsigned int slot); + const char* GetSuffix(unsigned int slot); + bool IsSlotMarkedSuccessful(unsigned int slot); + + const std::string& misc_device() const { + return misc_device_; + } + + private: + // Whether this object was initialized with data from the bootloader message + // that doesn't change until next reboot. + bool initialized_ = false; + + // The path to the misc_device as reported in the fstab. + std::string misc_device_; + + // The number of slots present on the device. + unsigned int num_slots_ = 0; + + // The slot where we are running from. + unsigned int current_slot_ = 0; +}; + +} // namespace bootable +} // namespace android -- cgit v1.2.3