151 lines
4.4 KiB
Bash
Executable file
151 lines
4.4 KiB
Bash
Executable file
#!/vendor/bin/sh
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PATH=/sbin:/vendor/sbin:/vendor/bin:/vendor/xbin
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export PATH
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scriptname=${0##*/}
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notice()
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{
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echo "$*"
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echo "$scriptname: $*" > /dev/kmsg
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}
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# We take this from cpuinfo because hex "letters" are lowercase there
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set -A cinfo `cat /proc/cpuinfo | sed -n "/Revision/p"`
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hw=${cinfo[2]#?}
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# Now "cook" the value so it can be matched against devtree names
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m2=${hw%?}
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minor2=${hw#$m2}
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m1=${m2%?}
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minor1=${m2#$m1}
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if [ "$minor2" == "0" ]; then
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minor2=""
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if [ "$minor1" == "0" ]; then
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minor1=""
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fi
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fi
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setprop ro.vendor.hw.revision p${hw%??}$minor1$minor2
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unset hw cinfo m1 m2 minor1 minor2
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# reload UTAGS
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utag_status=$(cat /proc/config/reload)
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if [ "$utag_status" == "2" ]; then
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notice "Utags are not ready, reloading"
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echo 1 > /proc/config/reload
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utag_status=$(cat /proc/config/reload)
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[ "$utag_status" != "0" ] && notice "Utags failed to reload"
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fi
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# Export these for factory validation purposes
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iccid=$(cat /proc/config/iccid/ascii 2>/dev/null)
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if [ ! -z "$iccid" ]; then
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setprop ro.vendor.mot.iccid $iccid
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fi
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unset iccid
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cust_md5=$(cat /proc/config/cust_md5/ascii 2>/dev/null)
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if [ ! -z "$cust_md5" ]; then
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setprop ro.vendor.mot.cust_md5 $cust_md5
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fi
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unset cust_md5
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# Get FTI data and catch old units with incorrect/missing UTAG_FTI
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pds_fti=/mnt/vendor/persist/factory/fti
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if [ -r $pds_fti ]; then
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set -A fti $(od -A n -t x1 $pds_fti 2>/dev/null | tr '[A-F]' '[a-f]')
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else
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notice "Can not read FTI data in persist"
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fi
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# If UTAG_FTI is readable, compare checksums
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# and if they mismatch, assume PDS is valid and overwrite UTAG
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utag_fti=/proc/config/fti
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if [ -r $utag_fti/ascii ]; then
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set -A fti_utag $(cat ${utag_fti}/raw | sed 's/../& /g' | tr '[A-F]' '[a-f]')
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# Byte 128 is total cksum, if nothing there, PDS data is invalid/missing
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if [ ! -z "${fti[127]}" ]; then
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# Make sure fti in UTAG is the same as in persist. Checksum comparison
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if [ "${fti[126]}" != "${fti_utag[126]}" -o "${fti[127]}" != "${fti_utag[127]}" ]; then
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notice "Copying FTI data from persist"
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cat $pds_fti > ${utag_fti}/raw
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fi
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else
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# If PDS data is invalid, take UTAG and hope it is correct
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notice "Will use FTI from UTAG"
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set -A fti $(od -A n -t x1 ${utag_fti}/ascii 2>/dev/null)
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fi
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else
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notice "Missing FTI UTAG; copying from persist"
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echo fti > /proc/config/all/new
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cat $pds_fti > ${utag_fti}/raw
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fi
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# Read HW version from FTI data
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hw_v1="\x${fti[35]}"
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hw_v2="\x${fti[36]}"
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hw_v3="\x${fti[37]}"
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if [ "$hw_v3" == "\x30" ]; then
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hw_v3=""
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fi
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hw_v4="\x${fti[38]}"
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if [ "$hw_v4" == "\x30" ]; then
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hw_v4=""
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fi
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setprop ro.vendor.hw.boardversion $(printf "$hw_v1$hw_v2$hw_v3$hw_v4")
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# Now we have set fti var either from PDS or UTAG
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# Get Last Test Station stamp from FTI
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# and convert to user-friendly date, US format
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# Real offsets for year/month/day are 63/64/65
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# If the month/date look reasonable, data is probably OK.
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mdate="Unknown"
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y=0x${fti[63]}
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m=0x${fti[64]}
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d=0x${fti[65]}
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let year=$y month=$m day=$d
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# Invalid data will often have bogus month/date values
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if [ $month -le 12 -a $day -le 31 -a $year -ge 12 ]; then
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mdate=$month/$day/20$year
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else
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notice "Corrupt FTI data"
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fi
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setprop ro.vendor.manufacturedate $mdate
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unset fti y m d year month day utag_fti pds_fti fti_utag mdate
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t=$(getprop ro.build.tags)
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if [[ "$t" != *release* ]]; then
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for p in $(cat /proc/cmdline); do
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if [ ${p%%:*} = "@" ]; then
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v=${p#@:}; a=${v%=*}; b=${v#*=}
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${a%%:*} ${a##*:} $b
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fi
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done
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fi
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unset p v a b t
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# Cleanup stale/incorrect programmed model value
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# Real values will never contain substrings matching "internal" device name
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product=$(getprop ro.vendor.hw.device)
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model=$(cat /proc/config/model/ascii 2>/dev/null)
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if [ $? -eq 0 ]; then
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if [ "${model#*_}" == "$product" -o "${model%_*}" == "$product" ]; then
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notice "Clearing stale model value"
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echo "" > /proc/config/model/raw
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fi
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fi
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unset model product
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# set ro.vendor.bootreason, which be used to indicate kpanic/wdt boot status.
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# When ro.boot.last_powerup_reason is set, it denotes this is a 2nd reboot
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# after kpanic/wdt, we set ro.bootreason as coldboot to copy logs.
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# Otherwise, we would set ro.bootreason the same as ro.boot.bootreason.
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# ro.boot.bootreason is restricted as of android p, so get it another way:
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bootreason_kvp=$(cat /proc/bootinfo | grep "Last boot reason")
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last_power_up=$(getprop ro.boot.last_powerup_reason)
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if [ ! -z "$last_power_up" ]
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then
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setprop ro.vendor.bootreason "coldboot"
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else
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setprop ro.vendor.bootreason ${bootreason_kvp##* }
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fi
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