| /* Copyright Statement: |
| * |
| * This software/firmware and related documentation ("MediaTek Software") are |
| * protected under relevant copyright laws. The information contained herein is |
| * confidential and proprietary to MediaTek Inc. and/or its licensors. Without |
| * the prior written permission of MediaTek inc. and/or its licensors, any |
| * reproduction, modification, use or disclosure of MediaTek Software, and |
| * information contained herein, in whole or in part, shall be strictly |
| * prohibited. |
| * |
| * SPDX-License-Identifier: MediaTekProprietary |
| * MediaTek Inc. (C) 2016. All rights reserved. |
| * |
| * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES |
| * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") |
| * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER |
| * ON AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL |
| * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR |
| * NONINFRINGEMENT. NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH |
| * RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, |
| * INCORPORATED IN, OR SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES |
| * TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. |
| * RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO |
| * OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN MEDIATEK |
| * SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE |
| * RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR |
| * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S |
| * ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE |
| * RELEASED HEREUNDER WILL BE, AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE |
| * MEDIATEK SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE |
| * CHARGE PAID BY RECEIVER TO MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. |
| * |
| * The following software/firmware and/or related documentation ("MediaTek |
| * Software") have been modified by MediaTek Inc. All revisions are subject to |
| * any receiver's applicable license agreements with MediaTek Inc. |
| */ |
| |
| |
| /* THE HAL BOOTCTRL HEADER MUST BE IN SYNC WITH THE UBOOT BOOTCTRL HEADER */ |
| |
| #ifndef _BOOTCTRL_H_ |
| #define _BOOTCTRL_H_ |
| |
| #include <stdint.h> |
| |
| /* struct boot_ctrl occupies the slot_suffix field of |
| * struct bootloader_message */ |
| |
| #define BOOTCTRL_SUFFIX_A "_a" |
| #define BOOTCTRL_SUFFIX_B "_b" |
| #define BOOT_CONTROL_VERSION 1 |
| |
| #define BOOTCTRL_PROPERTY "ro.boot.slot_suffix" |
| #define SLOT_SUFFIX_STR "androidboot.slot_suffix=" |
| #define COMMAND_LINE_PATH "/proc/cmdline" |
| #define COMMAND_LINE_SIZE 2048 |
| |
| /* AVB20 */ |
| /* Magic for the A/B struct when serialized. */ |
| #define AVB_AB_MAGIC "\0AB0" |
| #define AVB_AB_MAGIC_LEN 4 |
| |
| /* Versioning for the on-disk A/B metadata - keep in sync with avbtool. */ |
| #define AVB_AB_MAJOR_VERSION 1 |
| #define AVB_AB_MINOR_VERSION 0 |
| |
| /* Size of AvbABData struct. */ |
| #define AVB_AB_DATA_SIZE 32 |
| |
| /* Maximum values for slot data */ |
| #define AVB_AB_MAX_PRIORITY 15 |
| #define AVB_AB_MAX_TRIES_REMAINING 7 |
| |
| #define BOOTDEV_TYPE_NAND 1 |
| #define BOOTDEV_TYPE_EMMC 2 |
| |
| #define OFFSETOF_SLOT_SUFFIX 2048 |
| |
| /* Struct used for recording per-slot metadata. |
| * |
| * When serialized, data is stored in network byte-order. |
| */ |
| typedef struct AvbABSlotData { |
| /* Slot priority. Valid values range from 0 to AVB_AB_MAX_PRIORITY, |
| * both inclusive with 1 being the lowest and AVB_AB_MAX_PRIORITY |
| * being the highest. The special value 0 is used to indicate the |
| * slot is unbootable. |
| */ |
| uint8_t priority; |
| |
| /* Number of times left attempting to boot this slot ranging from 0 |
| * to AVB_AB_MAX_TRIES_REMAINING. |
| */ |
| uint8_t tries_remaining; |
| |
| /* Non-zero if this slot has booted successfully, 0 otherwise. */ |
| uint8_t successful_boot; |
| /* For lk anti rollback*/ |
| uint8_t efuse_write; |
| uint8_t bl_ver; |
| /* Reserved for future use. */ |
| uint8_t reserved[3]; |
| |
| } AvbABSlotData; |
| |
| /* Struct used for recording A/B metadata. |
| * |
| * When serialized, data is stored in network byte-order. |
| */ |
| typedef struct AvbABData { |
| /* Magic number used for identification - see AVB_AB_MAGIC. */ |
| uint8_t magic[AVB_AB_MAGIC_LEN]; |
| |
| /* Version of on-disk struct - see AVB_AB_{MAJOR,MINOR}_VERSION. */ |
| uint8_t version_major; |
| uint8_t version_minor; |
| |
| /* Padding to ensure |slots| field start eight bytes in. */ |
| uint8_t reserved1[2]; |
| |
| /* Per-slot metadata. */ |
| AvbABSlotData slots[2]; |
| |
| /* Reserved for future use. */ |
| uint8_t reserved2[12]; |
| |
| /* CRC32 of all 28 bytes preceding this field. */ |
| uint32_t crc32; |
| } AvbABData; |
| #endif /* _BOOTCTRL_H_ */ |