name : get_led_device_info.sh #!/bin/sh # SPDX-License-Identifier: GPL-2.0 led_common_defs_path="include/dt-bindings/leds/common.h" num_args=$# if [ $num_args -eq 1 ]; then linux_top=$(dirname `realpath $0` | awk -F/ \ '{ \ i=1; \ while (i <= NF - 2) { \ printf $i"/"; \ i++; \ }; \ }') led_defs_path=$linux_top/$led_common_defs_path elif [ $num_args -eq 2 ]; then led_defs_path=`realpath $2` else echo "Usage: get_led_device_info.sh LED_CDEV_PATH [LED_COMMON_DEFS_PATH]" exit 1 fi if [ ! -f $led_defs_path ]; then echo "$led_defs_path doesn't exist" exit 1 fi led_cdev_path=`echo $1 | sed s'/\/$//'` ls "$led_cdev_path/brightness" > /dev/null 2>&1 if [ $? -ne 0 ]; then echo "Device \"$led_cdev_path\" does not exist." exit 1 fi bus=`readlink $led_cdev_path/device/subsystem | sed s'/.*\///'` usb_subdev=`readlink $led_cdev_path | grep usb | sed s'/\(.*usb[0-9]*\/[0-9]*-[0-9]*\)\/.*/\1/'` ls "$led_cdev_path/device/of_node/compatible" > /dev/null 2>&1 of_node_missing=$? if [ "$bus" = "input" ]; then input_node=`readlink $led_cdev_path/device | sed s'/.*\///'` if [ ! -z "$usb_subdev" ]; then bus="usb" fi fi if [ "$bus" = "usb" ]; then usb_interface=`readlink $led_cdev_path | sed s'/.*\(usb[0-9]*\)/\1/' | cut -d\/ -f3` cd $led_cdev_path/../$usb_subdev driver=`readlink $usb_interface/driver | sed s'/.*\///'` if [ -d "$usb_interface/ieee80211" ]; then wifi_phy=`ls -l $usb_interface/ieee80211 | grep phy | awk '{print $9}'` fi idVendor=`cat idVendor` idProduct=`cat idProduct` manufacturer=`cat manufacturer` product=`cat product` elif [ "$bus" = "input" ]; then cd $led_cdev_path product=`cat device/name` driver=`cat device/device/driver/description` elif [ $of_node_missing -eq 0 ]; then cd $led_cdev_path compatible=`cat device/of_node/compatible` if [ "$compatible" = "gpio-leds" ]; then driver="leds-gpio" elif [ "$compatible" = "pwm-leds" ]; then driver="leds-pwm" else manufacturer=`echo $compatible | awk -F, '{print $1}'` product=`echo $compatible | awk -F, '{print $2}'` fi else echo "Unknown device type." exit 1 fi printf "\n#####################################\n" printf "# LED class device hardware details #\n" printf "#####################################\n\n" printf "bus:\t\t\t$bus\n" if [ ! -z "$idVendor" ]; then printf "idVendor:\t\t$idVendor\n" fi if [ ! -z "$idProduct" ]; then printf "idProduct:\t\t$idProduct\n" fi if [ ! -z "$manufacturer" ]; then printf "manufacturer:\t\t$manufacturer\n" fi if [ ! -z "$product" ]; then printf "product:\t\t$product\n" fi if [ ! -z "$driver" ]; then printf "driver:\t\t\t$driver\n" fi if [ ! -z "$input_node" ]; then printf "associated input node:\t$input_node\n" fi printf "\n####################################\n" printf "# LED class device name validation #\n" printf "####################################\n\n" led_name=`echo $led_cdev_path | sed s'/.*\///'` num_sections=`echo $led_name | awk -F: '{print NF}'` if [ $num_sections -eq 1 ]; then printf "\":\" delimiter not detected.\t[ FAILED ]\n" exit 1 elif [ $num_sections -eq 2 ]; then color=`echo $led_name | cut -d: -f1` function=`echo $led_name | cut -d: -f2` elif [ $num_sections -eq 3 ]; then devicename=`echo $led_name | cut -d: -f1` color=`echo $led_name | cut -d: -f2` function=`echo $led_name | cut -d: -f3` else printf "Detected %d sections in the LED class device name - should the script be updated?\n" $num_sections exit 1 fi S_DEV="devicename" S_CLR="color " S_FUN="function " status_tab=20 print_msg_ok() { local section_name="$1" local section_val="$2" local msg="$3" printf "$section_name :\t%-${status_tab}.${status_tab}s %s %s\n" "$section_val" "[ OK ] " "$msg" } print_msg_failed() { local section_name="$1" local section_val="$2" local msg="$3" printf "$section_name :\t%-${status_tab}.${status_tab}s %s %s\n" "$section_val" "[ FAILED ]" "$msg" } if [ ! -z "$input_node" ]; then expected_devname=$input_node elif [ ! -z "$wifi_phy" ]; then expected_devname=$wifi_phy fi if [ ! -z "$devicename" ]; then if [ ! -z "$expected_devname" ]; then if [ "$devicename" = "$expected_devname" ]; then print_msg_ok "$S_DEV" "$devicename" else print_msg_failed "$S_DEV" "$devicename" "Expected: $expected_devname" fi else if [ "$devicename" = "$manufacturer" ]; then print_msg_failed "$S_DEV" "$devicename" "Redundant: use of vendor name is discouraged" elif [ "$devicename" = "$product" ]; then print_msg_failed "$S_DEV" "$devicename" "Redundant: use of product name is discouraged" else print_msg_failed "$S_DEV" "$devicename" "Unknown devicename - should the script be updated?" fi fi elif [ ! -z "$expected_devname" ]; then print_msg_failed "$S_DEV" "blank" "Expected: $expected_devname" fi if [ ! -z "$color" ]; then color_upper=`echo $color | tr [:lower:] [:upper:]` color_id_definition=$(cat $led_defs_path | grep "_$color_upper\s" | awk '{print $2}') if [ ! -z "$color_id_definition" ]; then print_msg_ok "$S_CLR" "$color" "Matching definition: $color_id_definition" else print_msg_failed "$S_CLR" "$color" "Definition not found in $led_defs_path" fi fi if [ ! -z "$function" ]; then # strip optional enumerator function=`echo $function | sed s'/\(.*\)-[0-9]*$/\1/'` fun_definition=$(cat $led_defs_path | grep "\"$function\"" | awk '{print $2}') if [ ! -z "$fun_definition" ]; then print_msg_ok "$S_FUN" "$function" "Matching definition: $fun_definition" else print_msg_failed "$S_FUN" "$function" "Definition not found in $led_defs_path" fi fi