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_find_all_files() {
  25         find $1 -maxdepth $sensors_sys_depth -name \*_input -o -name temp 2>/dev/null
  26 }
  27
  28 sensors_find_all_dirs() {
  29         sensors_find_all_files $1 | while read
  30         do
  31                 dirname $REPLY
  32         done | sort -u
  33 }
  34
  35 # _check is called once, to find out if this chart should be enabled or not
  36 sensors_check() {
  37
  38         # this should return:
  39         #  - 0 to enable the chart
  40         #  - 1 to disable the chart
  41
  42         [ ! -z "$( sensors_find_all_files $sensors_sys_dir )" ] && return 0
  43         return 1
  44 }
  45
  46 sensors_check_files() {
  47         # we only need sensors that report a non-zero value
  48
  49         local f= v=
  50         for f in $*
  51         do
  52                 [ ! -f "$f" ] && continue
  53
  54                 v="$( cat $f )"
  55                 v=$(( v + 1 - 1 ))
  56                 [ $v -ne 0 ] && echo "$f" && continue
  57
  58                 echo >&2 "charts.d: sensors: $f gives zero values"
  59         done
  60 }
  61
  62 sensors_check_temp_type() {
  63         # valid temp types are 1 to 6
  64         # disabled sensors have the value 0
  65
  66         local f= t= v=
  67         for f in $*
  68         do
  69                 t=$( echo $f | sed "s|_input$|_type|g" )
  70                 [ "$f" = "$t" ] && echo "$f" && continue
  71                 [ ! -f "$t" ] && echo "$f" && continue
  72
  73                 v="$( cat $t )"
  74                 v=$(( v + 1 - 1 ))
  75                 [ $v -ne 0 ] && echo "$f" && continue
  76
  77                 echo >&2 "charts.d: sensors: $f is disabled"
  78         done
  79 }
  80
  81 # _create is called once, to create the charts
  82 sensors_create() {
  83         local path= dir= name= x= file= lfile= labelname= labelid= device= subsystem= id= type= mode= files= multiplier= divisor=
  84
  85         # we create a script with the source of the
  86         # sensors_update() function
  87         # - the highest speed we can achieve -
  88         [ $sensors_source_update -eq 1 ] && echo >$TMP_DIR/sensors.sh "sensors_update() {"
  89
  90         for path in $( sensors_find_all_dirs $sensors_sys_dir | sort -u )
  91         do
  92                 dir=$( basename $path )
  93                 device=
  94                 subsystem=
  95                 id=
  96                 type=
  97                 name=
  98
  99                 [ -h $path/device ] && device=$( readlink -f $path/device )
 100                 [ ! -z "$device" ] && device=$( basename $device )
 101                 [ -z "$device" ] && device="$dir"
 102
 103                 [ -h $path/subsystem ] && subsystem=$( readlink -f $path/subsystem )
 104                 [ ! -z "$subsystem" ] && subsystem=$( basename $subsystem )
 105                 [ -z "$subsystem" ] && subsystem="$dir"
 106
 107                 [ -f $path/name ] && name=$( cat $path/name )
 108                 [ -z "$name" ] && name="$dir"
 109
 110                 [ -f $path/type ] && type=$( cat $path/type )
 111                 [ -z "$type" ] && type="$dir"
 112
 113                 id="$( fixid "$device.$subsystem.$dir" )"
 114
 115                 echo >&2 "charts.d: sensors: on path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
 116
 117                 for mode in temperature voltage fans power current energy humidity
 118                 do
 119                         files=
 120                         multiplier=1
 121                         divisor=1
 122                         algorithm="absolute"
 123
 124                         case $mode in
 125                                 temperature)
 126                                         files="$( ls $path/temp*_input 2>/dev/null; ls $path/temp 2>/dev/null )"
 127                                         files="$( sensors_check_files $files )"
 128                                         files="$( sensors_check_temp_type $files )"
 129                                         [ -z "$files" ] && continue
 130                                         echo "CHART sensors.temp_$id '' '$name Temperature' 'Celcius' '$device' '' line 6000 $sensors_update_every"
 131                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.temp_$id \$1\""
 132                                         divisor=1000
 133                                         ;;
 134
 135                                 voltage)
 136                                         files="$( ls $path/in*_input 2>/dev/null )"
 137                                         files="$( sensors_check_files $files )"
 138                                         [ -z "$files" ] && continue
 139                                         echo "CHART sensors.volt_$id '' '$name Voltage' 'Volts' '$device' '' line 6001 $sensors_update_every"
 140                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.volt_$id \$1\""
 141                                         divisor=1000
 142                                         ;;
 143
 144                                 current)
 145                                         files="$( ls $path/curr*_input 2>/dev/null )"
 146                                         files="$( sensors_check_files $files )"
 147                                         [ -z "$files" ] && continue
 148                                         echo "CHART sensors.curr_$id '' '$name Current' 'Ampere' '$device' '' line 6002 $sensors_update_every"
 149                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.curr_$id \$1\""
 150                                         divisor=1000
 151                                         ;;
 152
 153                                 power)
 154                                         files="$( ls $path/power*_input 2>/dev/null )"
 155                                         files="$( sensors_check_files $files )"
 156                                         [ -z "$files" ] && continue
 157                                         echo "CHART sensors.power_$id '' '$name Power' 'Watt' '$device' '' line 6003 $sensors_update_every"
 158                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.power_$id \$1\""
 159                                         divisor=1000000
 160                                         ;;
 161
 162                                 fans)
 163                                         files="$( ls $path/fan*_input 2>/dev/null )"
 164                                         files="$( sensors_check_files $files )"
 165                                         [ -z "$files" ] && continue
 166                                         echo "CHART sensors.fan_$id '' '$name Fans Speed' 'Rotations / Minute' '$device' '' line 6004 $sensors_update_every"
 167                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.fan_$id \$1\""
 168                                         ;;
 169
 170                                 energy)
 171                                         files="$( ls $path/energy*_input 2>/dev/null )"
 172                                         files="$( sensors_check_files $files )"
 173                                         [ -z "$files" ] && continue
 174                                         echo "CHART sensors.energy_$id '' '$name Energy' 'Joule' '$device' '' areastack 6005 $sensors_update_every"
 175                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.energy_$id \$1\""
 176                                         algorithm="incremental"
 177                                         divisor=1000000
 178                                         ;;
 179
 180                                 humidity)
 181                                         files="$( ls $path/humidity*_input 2>/dev/null )"
 182                                         files="$( sensors_check_files $files )"
 183                                         [ -z "$files" ] && continue
 184                                         echo "CHART sensors.humidity_$id '' '$name Humidity' 'Percent' '$device' '' line 6006 $sensors_update_every"
 185                                         echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.humidity_$id \$1\""
 186                                         divisor=1000
 187                                         ;;
 188
 189                                 *)
 190                                         continue
 191                                         ;;
 192                         esac
 193
 194                         for x in $files
 195                         do
 196                                 file="$x"
 197                                 fid="$( fixid "$file" )"
 198                                 lfile="$( basename $file | sed "s|_input$|_label|g" )"
 199                                 labelname="$( basename $file | sed "s|_input$||g" )"
 200
 201                                 if [ ! "$path/$lfile" = "$file" -a -f "$path/$lfile" ]
 202                                         then
 203                                         labelname="$( cat "$path/$lfile" )"
 204                                 fi
 205
 206                                 echo "DIMENSION $fid '$labelname' $algorithm $multiplier $divisor"
 207                                 echo >>$TMP_DIR/sensors.sh "printf \"SET $fid = \"; cat $file "
 208                         done
 209
 210                         echo >>$TMP_DIR/sensors.sh "echo END"
 211                 done
 212         done
 213
 214         [ $sensors_source_update -eq 1 ] && echo >>$TMP_DIR/sensors.sh "}"
 215         # cat >&2 $TMP_DIR/sensors.sh
 216
 217         # ok, load the function sensors_update() we created
 218         [ $sensors_source_update -eq 1 ] && . $TMP_DIR/sensors.sh
 219
 220         return 0
 221 }
 222
 223 # _update is called continiously, to collect the values
 224 sensors_update() {
 225         # the first argument to this function is the microseconds since last update
 226         # pass this parameter to the BEGIN statement (see bellow).
 227
 228         # do all the work to collect / calculate the values
 229         # for each dimension
 230         # remember: KEEP IT SIMPLE AND SHORT
 231
 232         [ $sensors_source_update -eq 0 ] && . $TMP_DIR/sensors.sh $1
 233
 234         return 0
 235 }
 236