android10.0(Q) Nvram 新增节点
第一步：nvram lib数据结构定义
vendor\mediatek\proprietary\custom\k71v1_64_bsp\cgen\cfgfileinc\CFG_LOGO_File.h
//cczheng add for logo nvram start
#ifndef _CFG_LOGO_FILE_H
#define _CFG_LOGO_FILE_Htypedef struct
{unsigned char Array[1024];
}LOGOINDEX_CUSTOM_PARAM_STRUCT;#define CFG_FILE_LOGO_INDEX_REC_SIZE sizeof(LOGOINDEX_CUSTOM_PARAM_STRUCT)
#define CFG_FILE_LOGO_INDEX_REC_TOTAL 1
//end#endif第二步：nvram lib 默认值定义
vendor\mediatek\proprietary\custom\k71v1_64_bsp\cgen\cfgdefault\CFG_LOGO_Default.h
//cczheng add for logo nvram start
#ifndef _CFG_LOGO_DEFAULT_FILE_H
#define _CFG_LOGO_DEFAULT_FILE_H#include "../cfgfileinc/CFG_LOGO_File.h"LOGOINDEX_CUSTOM_PARAM_STRUCT stLogoDefault =
{0x01,0x00,0x00,0x00,0x0,0x0,0x0,0x0
};//end#endif第三步：nvram lib id定义
这里的添加节点顺序很关键，需要一一对应，在 AP_CFG_CUSTOM_FILE_MAX_LID 之前添加
vendor\mediatek\proprietary\custom\k71v1_64_bsp\cgen\inc\Custom_NvRam_LID.h
typedef enum
{....AP_CFG_RDCL_FILE_AUDIO_FUNC_SWITCH_PARAM_LID,AP_CFG_CUSTOM_FILE_FUEL_GAUGE_LID,AP_CFG_CUSTOM_FILE_SMARTPA_CALIB_LID,AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID,//cczheng add for logo nvramAP_CFG_CUSTOM_FILE_MAX_LID,} CUSTOM_CFG_FILE_LID;/* smartpa calib version */
#define AP_CFG_CUSTOM_FILE_SMARTPA_CALIB_LID_VERNO "000"// cczheng add for logo nvram start
#define AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID_VERNO "000"#endif /* CFG_FILE_LID_H */第四步：nvram lib id的数据结构和版本号声明
需要和上面的位置对应，添加到最后
vendor\mediatek\proprietary\custom\k71v1_64_bsp\cgen\inc\Custom_NvRam_data_item.h
#ifndef CUSTOM_NVRAM_DATA_ITEM_H
#define CUSTOM_NVRAM_DATA_ITEM_H#include "custom_cfg_module_file.h"
#include "Custom_NvRam_LID.h"#include "../cfgfileinc/CFG_LOGO_File.h"....// cczheng add for logo nvram start
LID_BIT VER_LID(AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID)
LOGOINDEX_CUSTOM_PARAM_STRUCT *CFG_FILE_LOGO_INDEX_REC_TOTAL
{};//end
END_NVRAM_DATA第五步：nvram lib内容加入nvram数组中
vendor\mediatek\proprietary\custom\k71v1_64_bsp\cgen\inc\CFG_file_info_custom.h
//cczheng
#include "../cfgfileinc/CFG_LOGO_File.h"
#include "../cfgdefault/CFG_LOGO_Default.h"const TCFG_FILE g_akCFG_File_Custom[]={....{ "/mnt/vendor/nvdata/APCFG/APRDCL/smartpa_calib", VER(AP_CFG_CUSTOM_FILE_SMARTPA_CALIB_LID), CFG_FILE_SMARTPA_CALIB_CONFIG_SIZE,CFG_FILE_SMARTPA_CALIB_CONFIG_TOTAL, SIGNLE_DEFUALT_REC, (char *)&smartpa_calib_ConfigDefault, DataReset, NULL},//cczheng add for logo nvram start {"/mnt/vendor/nvdata/APCFG/APRDEB/LOGO_INDEX", VER(AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID), CFG_FILE_LOGO_INDEX_REC_SIZE,// CFG_FILE_LOGO_INDEX_REC_TOTAL, DEFAULT_ZERO, 0, DataReset, NULLCFG_FILE_LOGO_INDEX_REC_TOTAL, SIGNLE_DEFUALT_REC, (char *)&stLogoDefault, DataReset, NULL},//end};第六步：nvram lib id需要备份到BinRegion
vendor\mediatek\proprietary\external\nvram\libcustom_nvram\CFG_file_info.c
FileName aBackupToBinRegion[] = {...{"smartpa_calib", AP_CFG_CUSTOM_FILE_SMARTPA_CALIB_LID},
#endif{"LOGO_INDEX", AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID},//cczheng add for logo nvram};...
};pfConvertFunc aNvRamConvertFuncTable[] = {....NULL,//AP_CFG_RDEB_OMADM_USB_LIDNULL,//AP_CFG_REEB_PRODUCT_INFO_LIDNULL,//AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID cczheng add...
};const TABLE_FOR_SPECIAL_LID g_new_nvram_lid[] = {
#ifdef MTK_MLC_NAND_SUPPORT{ AP_CFG_REEB_PRODUCT_INFO_LID, 0, 2 * 1024 * 1024 },{ AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID, 2 * 1024 * 1024, 1024 * 1024 },//cczheng add
#else{ AP_CFG_REEB_PRODUCT_INFO_LID, 0, 1024 * 1024 },{ AP_CFG_CUSTOM_FILE_LOGO_INDEX_LID, 1024 * 1024, 1024 * 1024 },//cczheng add
#endif......
};
第七步：整编后烧写验证
adb shell
cd /mnt/vendor/nvdata/APCFG/APRDEB
可以看到 LOGO_INDEX
BT_Addr GPS LOGO_INDEX WIFI WIFI_CUSTOM
或者过滤日志
2020-11-30 16:29:16.116 484-484/? D/NVRAM: NVM_Init Max Lid: 79
2020-11-30 16:29:16.116 484-484/? D/NVRAM: [NVRAM]: info nvram_gpt_flag =1
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/FILE_VER,0
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDEB/BT_Addr,1
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/AUXADC,2
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_Para,3
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_3A,4
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING,5
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_DEFECT,6
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SENSOR,7
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_LENS,8
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/UART,9
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/FACTORY,10
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/BWCS,11
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/HWMON_ACC,12
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/HWMON_GYRO,13
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDEB/OMADM_USB,14
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/Voice_Recognize_Param,15
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/Audio_AudEnh_Control_Opt,16
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/Audio_VOIP_Param,17
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/HWMON_PS,18
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/MD_Type,19
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/EXT_MD_Type,20
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/SDIO,21
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_VERSION,22
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_FEATURE,23
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_GEOMETRY,24
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/APCFG/APRDCL/MD_SBP,25
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING2,26
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING3,27
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING4,28
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING5,29
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING6,30
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING7,31
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING8,32
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING9,33
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING10,34
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING11,35
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_SHADING12,36
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE,37
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE2,38
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE3,39
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE4,40
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE5,41
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE6,42
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE7,43
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE8,44
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE9,45
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE10,46
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE11,47
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_PLINE12,48
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_AF,49
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgfile =/mnt/vendor/nvdata/media/CAMERA_FLASH_CALIBRATION,50
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Sph,51
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDEB/GPS,52
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_CompFlt,53
2020-11-30 16:29:16.116 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Effect,54
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDEB/WIFI,55
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDEB/WIFI_CUSTOM,56
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Sph_Med,57
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Vol_custom,58
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Sph_Dual_Mic,59
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Wb_Sph,60
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDEB/PRODUCT_INFO,61
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDEB/LOGO_INDEX,62
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Headphone_CompFlt,63
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_gain_table,64
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_ver1_Vol_custom,65
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Hd_Record_Param,66
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Hd_Record_Scene_Table,67
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Buffer_DC_Calibration_Param,68
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/VibSpk_CompFlt,69
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/MusicDRC_CompFlt,70
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/RingToneDRC_CompFlt,71
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_MAGI_CONFERENCE,72
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_HAC_Param,73
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_Sph_Lpbk,74
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/Audio_BT_Gain,75
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/media/AUDIO_FUNC_SWITCH_Param,76
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDCL/FG,77
2020-11-30 16:29:16.117 484-484/? D/NVRAM: deal with cfgcustfile =/mnt/vendor/nvdata/APCFG/APRDCL/smartpa_calib,78===============================================================================
20201201 更新
采用上面的方式添加节点ID到 k71v1_64_bsp 项目名称中，后来遇到的问题
读取 nvram 数据正常，写入 nvram 数据时总是失败，错误日志如下
总是提示 write file error!
D/NVRAM: NVM_GetLIDByName /mnt/vendor/nvdata/APCFG/APRDEB/LOGO_INDEX
D/NVRAM: NVRAM: NVM_GetLIDByName Lid =62
D/NVRAM: 62 is in new nvram partition!!!
D/NVRAM: New NVRAM partition name is /dev/block/platform/bootdevice/by-name/proinfo.
D/NVRAM: RecNum is :1
D/NVRAM: write file error!
D/NVRAM: 62 is in new nvram partition!!!
解决办法
vendor\mediatek\proprietary\bootable\bootloader\lk\platform\mt6765\write_protect.c
注释里面的 set_write_protect(); 调用
if (!bypass_wp) {//set_write_protect();pal_log_err("write protect Done! \n");} elsepal_log_err("Bypass write protect! \n");
问题根本原因是正常开机情况下， product info 会被 EMMC 写保护挡下 power on write protect权限问题
可以继续优化 如何兼容开机客制化读写nvram 和 power on write protect feature.
通常做法是自行定义控制power on write protect对nvram 和product info 分区的开启和关闭。
如果不采用上面的添加节点方式，而是直接将节点添加到 vendor\mediatek\proprietary\custom\common 目录下，则不会出现写入失败的情况，但是会出现保存成功后回厂或者再次刷机保存数据会丢失。
本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！