2021-10-26 linux 交互式shell脚本对话框----whiptail指令

一、编译Android kernel的时候弹出一个选择对话框，比较好奇，就认真分析了一下这个脚本对话框怎么来的。

1、编译的时候会调用mkimg文件。

2、mkimg文件里面会调用whiptail指令弹出选择对话框，用Tab键选择ok或者cancel。

#!/bin/sh
# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
# Copyright (c) 2021 Rockchip Electronics Co., Ltd.PMUIO2=0
VCCIO1=0
VCCIO3=0
VCCIO4=0
VCCIO5=0
VCCIO6=0
VCCIO7=0DTS_PMUIO2=0
DTS_VCCIO1=0
DTS_VCCIO3=0
DTS_VCCIO4=0
DTS_VCCIO5=0
DTS_VCCIO6=0
DTS_VCCIO7=0DTS_NAME=$1.dts.tmpCheckBckfileRet=0
checklistRst=0
GetVoltageFromDtsVal=0ShowChecklist()
{PMUIO2=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "PMUIO2 Supply Power Voltage(uV)" \"3300000" "PMUIO2 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fiVCCIO1=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "VCCIO1 Supply Power Voltage(uV)" \"3300000" "VCCIO1 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fiVCCIO3=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "VCCIO3 Supply Power Voltage(uV)" \"3300000" "VCCIO3 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fiVCCIO4=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "VCCIO4 Supply Power Voltage(uV)" \"3300000" "VCCIO4 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fiVCCIO5=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "VCCIO5 Supply Power Voltage(uV)" \"3300000" "VCCIO5 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fiVCCIO6=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "VCCIO6 Supply Power Voltage(uV)" \"3300000" "VCCIO6 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fiVCCIO7=$(whiptail --title "IO Domain Checklist" --menu --nocancel\"Get the corresponding value from the hardware schematic diagram" 15 60 2 \"1800000" "VCCIO7 Supply Power Voltage(uV)" \"3300000" "VCCIO7 Supply Power Voltage(uV)" 3>&1 1>&2 2>&3)exitstatus=$?if [ $exitstatus != 0 ]; thenecho "You chose Cancel."checklistRst=1fi
}DtsIoDomainVoltageVal=0
DtsIoDomainVoltage()
{DtsIoDomainVoltageVal=0flags=0if [ -f $DTS_NAME ];thenecho "found $DTS_NAME"fisupply=$(cat $DTS_NAME \| grep $1 \| cut -d "&" -f 2 \| cut -d ">" -f 1 \| tail -n1)ldo_str=$(cat $DTS_NAME  \| awk 'BEGIN {RS="\n\n+";ORS="\n\n"}/regulator-name/{print $0}' \| awk BEGIN{RS=EOF}'{gsub(/\n/," ");print $0}' \| grep $supply \| awk '{print $2}' \| awk -F 'SWITCH_REG' '{print $2}')if [ "$ldo_str" != "" ];thenDtsIoDomainVoltageVal=3300000elseDtsIoDomainVoltageVal=$(cat $DTS_NAME  \| awk 'BEGIN {RS="\n\n+";ORS="\n\n"}/regulator-name/{print $0}' \| awk BEGIN{RS=EOF}'{gsub(/\n/," ");print $0}' \|grep $supply \| awk -F 'regulator-max-microvolt' '{print $2}' \| cut -d "<" -f 2 \| cut -d ">" -f 1)fi
}GetIoDomainVoltageFromDts()
{DtsIoDomainVoltage "pmuio2-supply"DTS_PMUIO2=$DtsIoDomainVoltageValDtsIoDomainVoltage "vccio1-supply"DTS_VCCIO1=$DtsIoDomainVoltageValDtsIoDomainVoltage "vccio3-supply"DTS_VCCIO3=$DtsIoDomainVoltageValDtsIoDomainVoltage "vccio4-supply"DTS_VCCIO4=$DtsIoDomainVoltageValDtsIoDomainVoltage "vccio5-supply"DTS_VCCIO5=$DtsIoDomainVoltageValDtsIoDomainVoltage "vccio6-supply"DTS_VCCIO6=$DtsIoDomainVoltageValDtsIoDomainVoltage "vccio7-supply"DTS_VCCIO7=$DtsIoDomainVoltageVal
}CheckVoltageWithBackupfile()
{CheckBckfileRet=2val=$(cat $DTS_NAME.domain \| grep PMUIO2 \| cut -d ":" -f 2)if [ "$val" != "$DTS_PMUIO2" ];thenCheckBckfileRet=1echo "PMUIO2 Supply Power Voltage has changed!!! please reconfirm!!!"fival=$(cat $DTS_NAME.domain \| grep VCCIO1 \| cut -d ":" -f 2)if [ "$val" != "$DTS_VCCIO1" ];thenCheckBckfileRet=1echo "VCCIO1 Supply Power Voltage has changed!!! please reconfirm!!!"fival=$(cat $DTS_NAME.domain \| grep VCCIO3 \| cut -d ":" -f 2)if [ "$val" != "$DTS_VCCIO3" ];thenCheckBckfileRet=1echo "VCCIO3 Supply Power Voltage has changed!!! please reconfirm!!!"fival=$(cat $DTS_NAME.domain | grep VCCIO4 | cut -d ":" -f 2)if [ "$val" != "$DTS_VCCIO4" ];thenret=1echo "VCCIO4 Supply Power Voltage has changed!!! please reconfirm!!!"fival=$(cat $DTS_NAME.domain \| grep VCCIO5 \| cut -d ":" -f 2)if [ "$val" != "$DTS_VCCIO5" ];thenCheckBckfileRet=1echo "VCCIO5 Supply Power Voltage has changed!!! please reconfirm!!!"fival=$(cat $DTS_NAME.domain \| grep VCCIO6 \| cut -d ":" -f 2)if [ "$val" != "$DTS_VCCIO6" ];thenCheckBckfileRet=1echo "VCCIO6 Supply Power Voltage has changed!!! please reconfirm!!!"fival=$(cat $DTS_NAME.domain \| grep VCCIO7 \| cut -d ":" -f 2)if [ "$val" != "$DTS_VCCIO7" ];thenCheckBckfileRet=1echo "VCCIO7 Supply Power Voltage has changed!!! please reconfirm!!!"fi
}CheckVoltageWithEnter()
{checklistRst=0if [ $PMUIO2 -ne $DTS_PMUIO2 ];thenchecklistRst=1echo "PMUIO2 Supply Power Voltage has changed!!! please reconfirm!!!"fiif [ $VCCIO1 -ne $DTS_VCCIO1 ];thenchecklistRst=1echo "VCCIO1 Supply Power Voltage has changed!!! please reconfirm!!!"fiif [ $VCCIO3 -ne $DTS_VCCIO3 ];thenchecklistRst=1echo "VCCIO3 Supply Power Voltage has changed!!! please reconfirm!!!"fiif [ $VCCIO4 -ne $DTS_VCCIO4 ];thenchecklistRst=1echo "VCCIO4 Supply Power Voltage has changed!!! please reconfirm!!!"fiif [ $VCCIO5 -ne $DTS_VCCIO5 ];thenchecklistRst=1echo "VCCIO5 Supply Power Voltage has changed!!! please reconfirm!!!"fiif [ $VCCIO6 -ne $DTS_VCCIO6 ];thenchecklistRst=1echo "VCCIO6 Supply Power Voltage has changed!!! please reconfirm!!!"fiif [ $VCCIO7 -ne $DTS_VCCIO7 ];thenchecklistRst=1echo "VCCIO7 Supply Power Voltage has changed!!! please reconfirm!!!"fi
}IsRK356x=$(cat $DTS_NAME | grep sdhci@fe310000)
if [ "$IsRK356x" = "" ];thenecho "is not rk356x"exit 0
fiGetIoDomainVoltageFromDts
if [ -f $DTS_NAME.domain ];thenCheckVoltageWithBackupfile
fiif [ "$CheckBckfileRet" != "2" ];thenShowChecklistCheckVoltageWithEnterif [ $checklistRst -eq 0 ]; thenif [ -f $DTS_NAME.domain ];thenrm -rf $DTS_NAME.domainfiecho "PMUIO2 Supply Power Voltage1:$PMUIO2" >> $DTS_NAME.domainecho "VCCIO1 Supply Power Voltage1:$VCCIO1" >> $DTS_NAME.domainecho "VCCIO3 Supply Power Voltage1:$VCCIO3" >> $DTS_NAME.domainecho "VCCIO4 Supply Power Voltage1:$VCCIO4" >> $DTS_NAME.domainecho "VCCIO5 Supply Power Voltage1:$VCCIO5" >> $DTS_NAME.domainecho "VCCIO6 Supply Power Voltage1:$VCCIO6" >> $DTS_NAME.domainecho "VCCIO7 Supply Power Voltage1:$VCCIO7" >> $DTS_NAME.domainecho 0elseecho "io-domian  default as:&pmu_io_domains {status = "okay";pmuio1-supply = <&vcc3v3_pmu>;pmuio2-supply = <&vcc3v3_pmu>;vccio1-supply = <&vccio_acodec>;vccio3-supply = <&vccio_sd>;vccio4-supply = <&vcc_3v3>;vccio5-supply = <&vcc_3v3>;vccio6-supply = <&vcc_3v3>;vccio7-supply = <&vcc_3v3>;};TODO:Need to be modified according to the actual hardwarefor example rk3568-evb:&pmu_io_domains {status = "okay";pmuio1-supply = <&vcc3v3_pmu>;pmuio2-supply = <&vcc3v3_pmu>;vccio1-supply = <&vccio_acodec>;vccio3-supply = <&vccio_sd>;vccio4-supply = <&vcc_1v8>;vccio5-supply = <&vcc_3v3>;vccio6-supply = <&vcc_1v8>;vccio7-supply = <&vcc_3v3>;};io-domain docs:Android11 SDK:RKDocs/android/Rockchip_Developer_Guide_Android11_SDK_V1.1.2_CN.pdf or newer.RK356X Linux SDK:docs/RK356X/Rockchip_RK356X_Introduction_IO_Power_Domains_Configuration.pdfdocs/Common/IO-DOMAIN/Rockchip_Developer_Guide_Linux_IO_DOMAIN_CN.pdf"exit 1fi
fi

二、关于脚本对话框，这个文章说的比较详细,这里就不细说了，可以参考下面的文章：交互式shell脚本对话框----whiptail指令 - 想要早睡的彼得潘 - 博客园

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