charts.d/sensors.chart.sh

   1 #!/bin/sh
   2
   3 # sensors docs
   4 # https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
   5
   6 # if this chart is called X.chart.sh, then all functions and global variables
   7 # must start with X_
   8
   9 # the directory the kernel keeps sensor data
  10 sensors_sys_dir="${NETDATA_HOST_PREFIX}/sys/devices"
  11
  12 # how deep in the tree to check for sensor data
  13 sensors_sys_depth=10
  14
  15 # if set to 1, the script will overwrite internal
  16 # script functions with code generated ones
  17 # leave to 1, is faster
  18 sensors_source_update=1
  19
  20 # how frequently to collect sensor data
  21 # the default is to collect it at every iteration of charts.d
  22 sensors_update_every=
  23
  24 sensors_priority=90000
  25
  26 sensors_find_all_files() {
  27         find $1 -maxdepth $sensors_sys_depth -name \*_input -o -name temp 2>/dev/null
  28 }
  29
  30 sensors_find_all_dirs() {
  31         sensors_find_all_files $1 | while read
  32         do
  33                 dirname $REPLY
  34         done | sort -u
  35 }
  36
  37 # _check is called once, to find out if this chart should be enabled or not
  38 sensors_check() {
  39
  40         # this should return:
  41         #  - 0 to enable the chart
  42         #  - 1 to disable the chart
  43
  44         [ -z "$( sensors_find_all_files $sensors_sys_dir )" ] && echo >&2 "$PROGRAM_NAME: sensors: no sensors found in '$sensors_sys_dir'." && return 1
  45         return 0
  46 }
  47
  48 sensors_check_files() {
  49         # we only need sensors that report a non-zero value
  50
  51         local f= v=
  52         for f in $*
  53         do
  54                 [ ! -f "$f" ] && continue
  55
  56                 v="$( cat $f )"
  57                 v=$(( v + 1 - 1 ))
  58                 [ $v -ne 0 ] && echo "$f" && continue
  59
  60                 echo >&2 "$PROGRAM_NAME: sensors: $f gives zero values"
  61         done
  62 }
  63
  64 sensors_check_temp_type() {
  65         # valid temp types are 1 to 6
  66         # disabled sensors have the value 0
  67
  68         local f= t= v=
  69         for f in $*
  70         do
  71                 t=$( echo $f | sed "s|_input$|_type|g" )
  72                 [ "$f" = "$t" ] && echo "$f" && continue
  73                 [ ! -f "$t" ] && echo "$f" && continue
  74
  75                 v="$( cat $t )"
  76                 v=$(( v + 1 - 1 ))
  77                 [ $v -ne 0 ] && echo "$f" && continue
  78
  79                 echo >&2 "$PROGRAM_NAME: sensors: $f is disabled"
  80         done
  81 }
  82
  83 # _create is called once, to create the charts
  84 sensors_create() {
  85         local path= dir= name= x= file= lfile= labelname= labelid= device= subsystem= id= type= mode= files= multiplier= divisor=
  86
  87         # we create a script with the source of the
  88         # sensors_update() function
  89         # - the highest speed we can achieve -
  90         [ $sensors_source_update -eq 1 ] && echo >$TMP_DIR/sensors.sh "sensors_update() {"
  91
  92         for path in $( sensors_find_all_dirs $sensors_sys_dir | sort -u )
  93         do
  94                 dir=$( basename $path )
  95                 device=
  96                 subsystem=
  97                 id=
  98                 type=
  99                 name=
 100
 101                 [ -h $path/device ] && device=$( readlink -f $path/device )
 102                 [ ! -z "$device" ] && device=$( basename $device )
 103                 [ -z "$device" ] && device="$dir"
 104
 105                 [ -h $path/subsystem ] && subsystem=$( readlink -f $path/subsystem )
 106                 [ ! -z "$subsystem" ] && subsystem=$( basename $subsystem )
 107                 [ -z "$subsystem" ] && subsystem="$dir"
 108
 109                 [ -f $path/name ] && name=$( cat $path/name )
 110                 [ -z "$name" ] && name="$dir"
 111
 112                 [ -f $path/type ] && type=$( cat $path/type )
 113                 [ -z "$type" ] && type="$dir"
 114
 115                 id="$( fixid "$device.$subsystem.$dir" )"
 116
 117                 echo >&2 "charts.d: sensors: on path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
 118
 119                 for mode in temperature voltage fans power current energy humidity
 120                 do
 121                         files=
 122                         multiplier=1
 123                         divisor=1
 124                         algorithm="absolute"
 125
 126                         case $mode in
 127                                 temperature)
 128                                         files="$( ls $path/temp*_input 2>/dev/null; ls $path/temp 2>/dev/null )"
 129                                         files="$( sensors_check_files $files )"
 130                                         files="$( sensors_check_temp_type $files )"
 131                                         [ -z "$files" ] && continue
 132                                         echo "CHART sensors.temp_$id '' '$name Temperature' 'Celsius' 'temperature' 'sensors.temp' line $((sensors_priority + 1)) $sensors_update_every"
 133                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.temp_$id \$1\""
 134                                         divisor=1000
 135                                         ;;
 136
 137                                 voltage)
 138                                         files="$( ls $path/in*_input 2>/dev/null )"
 139                                         files="$( sensors_check_files $files )"
 140                                         [ -z "$files" ] && continue
 141                                         echo "CHART sensors.volt_$id '' '$name Voltage' 'Volts' 'voltage' 'sensors.volt' line $((sensors_priority + 2)) $sensors_update_every"
 142                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.volt_$id \$1\""
 143                                         divisor=1000
 144                                         ;;
 145
 146                                 current)
 147                                         files="$( ls $path/curr*_input 2>/dev/null )"
 148                                         files="$( sensors_check_files $files )"
 149                                         [ -z "$files" ] && continue
 150                                         echo "CHART sensors.curr_$id '' '$name Current' 'Ampere' 'current' 'sensors.curr' line $((sensors_priority + 3)) $sensors_update_every"
 151                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.curr_$id \$1\""
 152                                         divisor=1000
 153                                         ;;
 154
 155                                 power)
 156                                         files="$( ls $path/power*_input 2>/dev/null )"
 157                                         files="$( sensors_check_files $files )"
 158                                         [ -z "$files" ] && continue
 159                                         echo "CHART sensors.power_$id '' '$name Power' 'Watt' 'power' 'sensors.power' line $((sensors_priority + 4)) $sensors_update_every"
 160                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.power_$id \$1\""
 161                                         divisor=1000000
 162                                         ;;
 163
 164                                 fans)
 165                                         files="$( ls $path/fan*_input 2>/dev/null )"
 166                                         files="$( sensors_check_files $files )"
 167                                         [ -z "$files" ] && continue
 168                                         echo "CHART sensors.fan_$id '' '$name Fans Speed' 'Rotations / Minute' 'fans' 'sensors.fans' line $((sensors_priority + 5)) $sensors_update_every"
 169                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.fan_$id \$1\""
 170                                         ;;
 171
 172                                 energy)
 173                                         files="$( ls $path/energy*_input 2>/dev/null )"
 174                                         files="$( sensors_check_files $files )"
 175                                         [ -z "$files" ] && continue
 176                                         echo "CHART sensors.energy_$id '' '$name Energy' 'Joule' 'energy' 'sensors.energy' areastack $((sensors_priority + 6)) $sensors_update_every"
 177                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.energy_$id \$1\""
 178                                         algorithm="incremental"
 179                                         divisor=1000000
 180                                         ;;
 181
 182                                 humidity)
 183                                         files="$( ls $path/humidity*_input 2>/dev/null )"
 184                                         files="$( sensors_check_files $files )"
 185                                         [ -z "$files" ] && continue
 186                                         echo "CHART sensors.humidity_$id '' '$name Humidity' 'Percent' 'humidity' 'sensors.humidity' line $((sensors_priority + 7)) $sensors_update_every"
 187                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.humidity_$id \$1\""
 188                                         divisor=1000
 189                                         ;;
 190
 191                                 *)
 192                                         continue
 193                                         ;;
 194                         esac
 195
 196                         for x in $files
 197                         do
 198                                 file="$x"
 199                                 fid="$( fixid "$file" )"
 200                                 lfile="$( basename $file | sed "s|_input$|_label|g" )"
 201                                 labelname="$( basename $file | sed "s|_input$||g" )"
 202
 203                                 if [ ! "$path/$lfile" = "$file" -a -f "$path/$lfile" ]
 204                                         then
 205                                         labelname="$( cat "$path/$lfile" )"
 206                                 fi
 207
 208                                 echo "DIMENSION $fid '$labelname' $algorithm $multiplier $divisor"
 209                                 echo >>$TMP_DIR/sensors.sh "printf \"SET $fid = \"; cat $file "
 210                         done
 211
 212                         echo >>$TMP_DIR/sensors.sh "echo END"
 213                 done
 214         done
 215
 216         [ $sensors_source_update -eq 1 ] && echo >>$TMP_DIR/sensors.sh "}"
 217         # cat >&2 $TMP_DIR/sensors.sh
 218
 219         # ok, load the function sensors_update() we created
 220         [ $sensors_source_update -eq 1 ] && . $TMP_DIR/sensors.sh
 221
 222         return 0
 223 }
 224
 225 # _update is called continiously, to collect the values
 226 sensors_update() {
 227         # the first argument to this function is the microseconds since last update
 228         # pass this parameter to the BEGIN statement (see bellow).
 229
 230         # do all the work to collect / calculate the values
 231         # for each dimension
 232         # remember: KEEP IT SIMPLE AND SHORT
 233
 234         [ $sensors_source_update -eq 0 ] && . $TMP_DIR/sensors.sh $1
 235
 236         return 0
 237 }
 238