smapi/smapi_battthresh

   1 #!/bin/sh
   2 # Copyright (c) 2014 Stefan Huber
   3 #
   4 # Permission is hereby granted, free of charge, to any person
   5 # obtaining a copy of this software and associated documentation
   6 # files (the "Software"), to deal in the Software without
   7 # restriction, including without limitation the rights to use,
   8 # copy, modify, merge, publish, distribute, sublicense, and/or sell
   9 # copies of the Software, and to permit persons to whom the
  10 # Software is furnished to do so, subject to the following
  11 # conditions:
  12 #
  13 # The above copyright notice and this permission notice shall be
  14 # included in all copies or substantial portions of the Software.
  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  18 # OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  20 # HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23 # OTHER DEALINGS IN THE SOFTWARE.
  24
  25 # Author: Stefan Huber <shuber@sthu.org>
  26
  27
  28
  29 CONFIG_FILE="/etc/smapi.conf"
  30 SMAPI_SYSFS="/sys/devices/platform/smapi"
  31 BATS="BAT0 BAT1"
  32
  33 load_config() {
  34         if [ -e ${CONFIG_FILE} ]; then
  35                 source ${CONFIG_FILE}
  36         else
  37                 echo "No config file /etc/smapi.conf found."
  38                 exit 1
  39         fi
  40 }
  41
  42 set_all() {
  43         local tstart=$1
  44         local tstop=$2
  45         local bat
  46
  47         for bat in ${BATS}; do
  48                 echo "  setting thresholds for ${bat}: $tstart $tstop"
  49                 echo ${tstart} > ${SMAPI_SYSFS}/${bat}/start_charge_thresh
  50                 echo ${tstop} > ${SMAPI_SYSFS}/${bat}/stop_charge_thresh
  51         done
  52 }
  53
  54 set_default() {
  55         echo "Switching to default thesholds"
  56         load_config
  57         set_all ${BATTERY_THRESH_START} ${BATTERY_THRESH_STOP}
  58 }
  59
  60 set_high() {
  61         echo "Switching to high thesholds"
  62         load_config
  63         set_all ${BATTERY_HIGH_THRESH_START} ${BATTERY_HIGH_THRESH_STOP}
  64 }
  65
  66 set_low() {
  67         echo "Switching to low thesholds"
  68         load_config
  69         set_all ${BATTERY_LOW_THRESH_START} ${BATTERY_LOW_THRESH_STOP}
  70 }
  71
  72 info() {
  73         local presence
  74         local tstart
  75         local tstop
  76         local bat
  77
  78         for bat in ${BATS}; do
  79                 tstart=$(cat ${SMAPI_SYSFS}/${bat}/start_charge_thresh)
  80                 tstop=$(cat ${SMAPI_SYSFS}/${bat}/stop_charge_thresh)
  81                 if [ "$(cat ${SMAPI_SYSFS}/${bat}/installed)" -eq "1" ]; then
  82                         presence="  [installed]"
  83                 fi
  84                 echo "${bat}: ${tstart}..${tstop}${presence}"
  85         done
  86 }
  87
  88 if [ "$#" = "0" ]; then
  89         info
  90 else
  91         case "$1" in
  92                 high)
  93                         set_high
  94                         ;;
  95                 low)
  96                         set_low
  97                         ;;
  98                 default)
  99                         set_default
 100                         ;;
 101                 *)
 102                         info
 103                         ;;
 104         esac
 105 fi