[应用笔记] 分享一款EEPROM简易类文件的数据读写库

typedef struct deepromfs_s{

    eeprom_handle_t *handle;

    

    la_t startAddr1;

    efs_size_t size1;

    

    la_t startAddr2;

    efs_size_t size2;

}deepromfs_t;

static deepromfs_t deepromfs;

eepromfs_result_t deepromfs_init(eeprom_handle_t *handle,la_t startAddr,efs_size_t size)

{

    eepromfs_result_t eepromfs_result1;

    eepromfs_result_t eepromfs_result2;



    //初始化

    deepromfs.handle=handle;

    deepromfs.startAddr1=startAddr;

    deepromfs.size1=size/2;

    deepromfs.startAddr2=deepromfs.startAddr1+deepromfs.size1;

    deepromfs.size2=size/2;





    eepromfs_result1=eepromfs_init(deepromfs.handle,deepromfs.startAddr1);

    eepromfs_result2=eepromfs_init(deepromfs.handle,deepromfs.startAddr2);

    if((eepromfs_result1==EFR_OK)&&(eepromfs_result2==EFR_OK))

    {

        return EFR_OK;

    }

    else if((eepromfs_result1==EFR_OK)&&(eepromfs_result2!=EFR_OK))

    {

        //拷贝分区1数据到分区2

        eepromfs_copy(deepromfs.handle,deepromfs.startAddr2,deepromfs.startAddr1,deepromfs.size1);

        return EFR_OK;

    }

    else if((eepromfs_result1!=EFR_OK)&&(eepromfs_result2==EFR_OK))

    {

        //拷贝分区2数据到分区1

        eepromfs_copy(deepromfs.handle,deepromfs.startAddr1,deepromfs.startAddr2,deepromfs.size2);

        return EFR_OK;

    }

    else if((eepromfs_result1==EFR_CRC_INFO_ERR)&&(eepromfs_result2==EFR_CRC_INFO_ERR))

    {

        return EFR_CRC_INFO_ERR;

    }

    return EFR_ERR;

}

eepromfs_result_t deepromfs_format_quick(void)

{

    eepromfs_result_t eepromfs_result;

    

    eepromfs_result=eepromfs_init(deepromfs.handle,deepromfs.startAddr1);

    if(eepromfs_result!=EFR_OK)

    {

        return eepromfs_result;

    }

    

    if(eepromfs_format_quick()!=EFR_OK)

    {

        return eepromfs_result;

    }



    eepromfs_result=eepromfs_init(deepromfs.handle,deepromfs.startAddr2);

    if(eepromfs_result!=EFR_OK)

    {

        return eepromfs_result;

    }

    

    eepromfs_result=eepromfs_format_quick();

    if(eepromfs_result!=EFR_OK)

    {

        return eepromfs_result;

    }

    

    return EFR_OK;

}

eepromfs_result_t eepromfs_init(eeprom_handle_t *handle,la_t startAddr);

eepromfs_result_t eepromfs_format_quick(void);//格式化不改变大小

eepromfs_result_t eepromfs_format_full(la_t startAddr,efs_size_t size);//格式化并重新指定大小



eepromfs_result_t eepromfs_new(file_handle_t *fh,const char* filename,efs_size_t fileSize);

eepromfs_result_t eepromfs_open(file_handle_t *fh,const char* filename);

eepromfs_result_t eepromfs_close(file_handle_t* fh);

eepromfs_result_t eepromfs_write(file_handle_t* fh, const fdata_t* data, efs_size_t size);

eepromfs_result_t eepromfs_offsetWrite(file_handle_t* fh,la_t offSet,const fdata_t* data, efs_size_t size);

eepromfs_result_t eepromfs_read(file_handle_t* fh, fdata_t* buf,efs_size_t bufLen,efs_size_t *pFilesize);

eepromfs_result_t eepromfs_delete(const char* filename);

eepromfs_result_t eepromfs_copy(eeprom_handle_t *handle,la_t destAddr,la_t srcAddr,efs_size_t size);