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