2022-12-03 12:07:44 +08:00
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/*
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****************************************************************************************************
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* MELIS
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* the Easy Portable/Player Develop Kits
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* SDMMC Module
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*
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* (c) Copyright 2011-2014, All winners Co,Ld.
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* All Rights Reserved
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*
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* File : mbr.h
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* By : james.deng
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* Version : 1.0.0
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* Date : 2011-11-28
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* Descript:
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* Update : <date> <author> <version> <notes>
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* 2011-11-28 james.deng 1.0.0 build the file.
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****************************************************************************************************
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*/
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#ifndef __MBR_H__
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#define __MBR_H__
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// #include <mod_defs.h>
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#define MAX_PART_COUNT 8 // max part count
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#define MBR_COPY_NUM 4 // mbr backup count
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#define MBR_START_ADDRESS 0x0 // mbr start address
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#define MBR_SIZE 1024 // mbr size
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#define MBR_RESERVED (MBR_SIZE - 20 - (MAX_PART_COUNT * 64)) // mbr reserved space
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// part information
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typedef struct tag_PARTITION
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{
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__u32 addrhi; // start address high 32 bit
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__u32 addrlo; // start address low 32 bit
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__u32 lenhi; // size high 32 bit
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__u32 lenlo; // size low 32 bit
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__u8 classname[12]; // major device name
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__u8 name[12]; // minor device name
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__u8 res[24]; // reserved
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2023-04-02 19:29:52 +08:00
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} PARTITION; // 64 bytes 应该使用 pack
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2022-12-03 12:07:44 +08:00
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// mbr information
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typedef struct tag_MBR
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{
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__u32 crc32; // crc, from byte 4 to mbr tail
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__u32 version; // version
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__u8 magic[8]; // magic number
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__u8 copy; // mbr backup count
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__u8 index; // current part no
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__u16 PartCount; // part counter
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PARTITION array[MAX_PART_COUNT]; // part info
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__u8 res[MBR_RESERVED]; // reserved space
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} MBR;
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#define SUNXI_MBR_SIZE (16 * 1024)
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#define SUNXI_MBR_MAX_PART_COUNT 120
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/* partition information */
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typedef struct sunxi_partition_t
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{
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unsigned int addrhi;
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unsigned int addrlo;
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unsigned int lenhi;
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unsigned int lenlo;
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unsigned char classname[16];
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unsigned char name[16];
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unsigned int user_type;
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unsigned int keydata;
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unsigned int ro;
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unsigned int sig_verify;
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unsigned int sig_erase;
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unsigned int sig_value[4];
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unsigned int sig_pubkey;
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unsigned int sig_pbumode;
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unsigned char reserved2[36];
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}__attribute__ ((packed))sunxi_partition;
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/* mbr information */
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typedef struct sunxi_mbr
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{
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unsigned int crc32; // crc 1k - 4
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unsigned int version; // 版本信息， 0x00000100
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unsigned char magic[8]; //"softw311"
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unsigned int copy; //分数
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unsigned int index; //第几个MBR备份
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unsigned int PartCount; //分区个数
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unsigned int stamp[1]; //对齐
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sunxi_partition array[SUNXI_MBR_MAX_PART_COUNT]; //
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unsigned int lockflag;
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unsigned char res[(SUNXI_MBR_SIZE - 32 - 4 - (SUNXI_MBR_MAX_PART_COUNT * sizeof(sunxi_partition)))];
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}__attribute__ ((packed)) sunxi_mbr_t;
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#endif // __MBR_H__
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