350 lines
8.8 KiB
Bash
350 lines
8.8 KiB
Bash
#!/system/bin/sh
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PATH=/sbin:/system/sbin:/system/bin:/system/xbin
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export PATH
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while getopts ds op;
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do
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case $op in
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d) dbg_on=1;;
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s) dump_statistics=1;;
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esac
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done
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shift $(($OPTIND-1))
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scriptname=${0##*/}
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touch_class_path=/sys/class/touchscreen
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touch_product_string=$(ls $touch_class_path)
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touch_status_prop=hw.touch.status
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debug()
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{
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[ $dbg_on ] && echo "Debug: $*"
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}
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notice()
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{
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echo "$*"
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echo "$scriptname: $*" > /dev/kmsg
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}
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sanity_check()
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{
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read_touch_property flashprog || return 1
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[[ ( -z "$property" ) || ( "$property" == "1" ) ]] && return 1
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read_touch_property productinfo || return 1
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[[ ( -z "$property" ) || ( "$property" == "0" ) ]] && return 1
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read_touch_property buildid || return 1
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config_id=${property#*-}
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[[ ( -z "$config_id" ) || ( "$config_id" == "0" ) ]] && return 1
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build_id=${property%-*}
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[[ ( -z "$build_id" ) || ( "$build_id" == "0" ) ]] && return 1
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return 0
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}
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error_and_leave()
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{
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local err_msg
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local err_code=$1
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local touch_status="unknown"
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case $err_code in
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1) err_msg="Error: No response from touch IC"
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touch_status="dead";;
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2) err_msg="Error: Cannot read property $2";;
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3) err_msg="Error: No matching firmware file found";;
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4) err_msg="Error: Touch IC is in bootloader mode"
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touch_status="dead";;
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5) err_msg="Error: Touch provides no reflash interface"
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touch_status="dead";;
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6) err_msg="Error: Touch driver is not running"
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touch_status="absent";;
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7) err_msg="Warning: Touch firmware is not the latest";;
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esac
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notice "$err_msg"
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# perform sanity check and declare touch ready if error is not fatal
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if [ "$touch_status" == "unknown" ]; then
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touch_status="ready"
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sanity_check
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[ "$?" == "1" ] && touch_status="dead"
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fi
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# perform recovery if touch is declared dead
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if [ "$touch_status" == "dead" ]; then
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notice "Touch needs to go through recovery!!!"
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reboot_cnt=$(getprop $touch_status_prop 2>/dev/null)
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[ -z "$reboot_cnt" ] && reboot_cnt=0
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debug "current reboot counter [$reboot_cnt]"
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fi
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setprop $touch_status_prop $touch_status
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notice "property [$touch_status_prop] set to [`getprop $touch_status_prop`]"
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if [ "$touch_status" == "dead" ]; then
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if [ $((reboot_cnt)) -lt 2 ]; then
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notice "Touch is not working; rebooting..."
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debug "sleep 3s to allow touch-dead-sh service to run"
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sleep 3
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[ -z "$dbg_on" ] && reboot
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else
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notice "Although touch is not working, no more reboots"
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fi
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fi
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exit $err_code
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}
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[ -z "$touch_product_string" ] && error_and_leave 6
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touch_vendor=$(cat $touch_class_path/$touch_product_string/vendor)
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debug "touch vendor [$touch_vendor]"
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touch_path=/sys$(cat $touch_class_path/$touch_product_string/path)
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debug "sysfs touch path: $touch_path"
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panel_path=/sys/devices/virtual/graphics/fb0
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debug "sysfs panel path: $panel_path"
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if [ $dump_statistics ]; then
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debug "dumping touch statistics"
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cat $touch_path/ic_ver
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[ -f $touch_path/stats ] && cat $touch_path/stats
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return 0
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fi
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[ -f $touch_path/doreflash ] || error_and_leave 5
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[ -f $touch_path/poweron ] || error_and_leave 5
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selinux=$(getprop ro.boot.selinux 2> /dev/null)
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if [ "$selinux" == "permissive" ]; then
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debug "loosen permissions to touch report sysfs entries"
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touch_report_files="reporting query stats"
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for entry in $touch_report_files; do
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chmod 0666 $touch_path/$entry
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debug "change permissions of $touch_path/$entry"
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done
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for entry in $(ls $touch_path/f54/ 2>/dev/null); do
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chmod 0666 $touch_path/f54/$entry
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debug "change permissions of $touch_path/f54/$entry"
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done
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unset touch_report_files
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fi
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# Set permissions to enable factory touch tests
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chown root:mot_tcmd $touch_path/drv_irq
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chown root:mot_tcmd $touch_path/hw_irqstat
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chown root:mot_tcmd $touch_path/reset
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# Set permissions to allow Bug2Go access to touch statistics
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chown root:log $touch_path/stats
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debug "wait until driver reports <ready to flash>..."
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while true; do
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readiness=$(cat $touch_path/poweron)
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if [ "$readiness" == "1" ]; then
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debug "ready to flash!!!"
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break;
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fi
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sleep 1
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debug "not ready; keep waiting..."
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done
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unset readiness
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device_property=ro.hw.device
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hwrev_property=ro.hw.revision
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firmware_path=/system/etc/firmware
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let dec_cfg_id_boot=0; dec_cfg_id_latest=0;
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read_touch_property()
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{
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property=""
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debug "retrieving property: [$touch_path/$1]"
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property=$(cat $touch_path/$1 2> /dev/null)
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debug "touch property [$1] is: [$property]"
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[ -z "$property" ] && return 1
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return 0
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}
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read_panel_property()
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{
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property=""
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debug "retrieving panel property: [$panel_path/$1]"
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property=$(cat $panel_path/$1 2> /dev/null)
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debug "panel property [$1] is: [$property]"
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[ -z "$property" ] && return 1
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return 0
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}
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find_latest_config_id()
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{
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local fw_mask=$1
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local skip_fields=$2
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local dec max z str_hex i
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str_cfg_id_latest=""
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debug "scanning dir for files matching [$fw_mask]"
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let dec=0; max=0;
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for file in $(ls $fw_mask 2>/dev/null);
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do
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z=$file
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i=0
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while [ ! $i -eq $skip_fields ];
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do
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z=${z#*-}
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i=$((i+1))
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done
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str_hex=${z%%-*};
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let dec=0x$str_hex
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if [ $dec -gt $max ];
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then
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let max=$dec; dec_cfg_id_latest=$dec;
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str_cfg_id_latest=$str_hex
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fi
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done
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[ -z "$str_cfg_id_latest" ] && return 1
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return 0
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}
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read_touch_property flashprog || error_and_leave 1
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bl_mode=$property
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debug "bl mode: $bl_mode"
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read_touch_property productinfo || error_and_leave 1
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touch_product_id=$property
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if [ -z "$touch_product_id" ] || [ "$touch_product_id" == "0" ];
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then
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debug "touch ic reports invalid product id"
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error_and_leave 1
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fi
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debug "touch product id: $touch_product_id"
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read_touch_property buildid || error_and_leave 1
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str_cfg_id_boot=${property#*-}
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let dec_cfg_id_boot=0x$str_cfg_id_boot
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debug "touch config id: $str_cfg_id_boot"
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build_id_boot=${property%-*}
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debug "touch build id: $build_id_boot"
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typeset -l product_id
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product_id=$(getprop $device_property 2> /dev/null)
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[ -z "$product_id" ] && error_and_leave 2 $device_property
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product_id=${product_id%-*}
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product_id=${product_id%_*}
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debug "product id: $product_id"
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hwrev_id=$(getprop $hwrev_property 2> /dev/null)
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[ -z "$hwrev_id" ] && notice "hw revision undefined"
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debug "hw revision: $hwrev_id"
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read_panel_property "panel_supplier"
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supplier=$property
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[ -z "$supplier" ] && debug "driver does not report panel supplier"
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debug "panel supplier: $supplier"
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cd $firmware_path
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find_best_match()
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{
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local hw_mask=$1
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local panel_supplier=$2
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local skip_fields fw_mask
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while [ ! -z "$hw_mask" ]; do
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if [ "$hw_mask" == "-" ]; then
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hw_mask=""
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fi
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if [ ! -z "$panel_supplier" ];
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then
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skip_fields=3
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fw_mask="$touch_vendor-$panel_supplier-$touch_product_id-*-$product_id$hw_mask.*"
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else
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skip_fields=2
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fw_mask="$touch_vendor-$touch_product_id-*-$product_id$hw_mask.*"
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fi
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find_latest_config_id "$fw_mask" "$skip_fields" && break
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hw_mask=${hw_mask%?}
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done
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[ -z "$str_cfg_id_latest" ] && return 1
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if [ -z "$panel_supplier" ]; then
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firmware_file=$(ls $touch_vendor-$touch_product_id-$str_cfg_id_latest-*-$product_id$hw_mask.*)
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else
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firmware_file=$(ls $touch_vendor-$panel_supplier-$touch_product_id-$str_cfg_id_latest-*-$product_id$hw_mask.*)
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fi
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notice "Firmware file for upgrade $firmware_file"
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return 0
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}
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hw_mask="-$hwrev_id"
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debug "hw_mask=$hw_mask"
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match_not_found=1
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if [ ! -z "$supplier" ];
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then
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debug "search for best hw revision match with supplier"
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find_best_match "-$hwrev_id" "$supplier"
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match_not_found=$?
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fi
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if [ "$match_not_found" -ne "0" ];
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then
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debug "search for best hw revision match without supplier"
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find_best_match "-$hwrev_id" || error_and_leave 3
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fi
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recovery=0
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if [ "$bl_mode" == "1" ] || [ "$build_id_boot" == "0" ];
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then
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recovery=1
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notice "Initiating touch firmware recovery"
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notice " bl mode = $bl_mode"
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notice " build id = $build_id_boot"
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fi
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if [ $dec_cfg_id_boot -ne $dec_cfg_id_latest ] || [ "$recovery" == "1" ];
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then
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debug "forcing firmware upgrade"
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echo 1 > $touch_path/forcereflash
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debug "sending reflash command"
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echo $firmware_file > $touch_path/doreflash
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read_touch_property flashprog || error_and_leave 1
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bl_mode=$property
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[ "$bl_mode" == "1" ] && error_and_leave 4
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read_touch_property buildid || error_and_leave 1
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str_cfg_id_new=${property#*-}
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build_id_new=${property%-*}
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notice "Touch firmware config id at boot time $str_cfg_id_boot"
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notice "Touch firmware config id in the file $str_cfg_id_latest"
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notice "Touch firmware config id currently programmed $str_cfg_id_new"
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[ "$str_cfg_id_latest" != "$str_cfg_id_new" ] && error_and_leave 7
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if [ -f $touch_path/f54/force_update ]; then
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notice "forcing F54 registers update"
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echo 1 > $touch_path/f54/force_update
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fi
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fi
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notice "Touch firmware is up to date"
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setprop $touch_status_prop "ready"
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notice "property [$touch_status_prop] set to [`getprop $touch_status_prop`]"
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unset device_property hwrev_property supplier
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unset str_cfg_id_boot str_cfg_id_latest str_cfg_id_new
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unset dec_cfg_id_boot dec_cfg_id_latest match_not_found
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unset hwrev_id product_id touch_product_id scriptname
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unset synaptics_link firmware_path touch_path
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unset bl_mode dbg_on hw_mask firmware_file property
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return 0
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