summaryrefslogtreecommitdiffstats
path: root/tools/leds/get_led_device_info.sh
blob: ccfa442db5fea014923263c7b3289563c4733394 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
#!/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