git.zerfleddert.de Git - fhem-stuff/blob - COC/init-coc

   1 #!/bin/sh
   2
   3 #RPi v1: BUS=0
   4 #RPi v2: BUS=1
   5 #Auto: BUS=-1
   6 BUS=-1
   7
   8 #BATTERY=0: trickle charger for supercap enabled
   9 #BATTERY=1: trickle charger for supercap disabled
  10 BATTERY=0
  11
  12 if [ "`id -u`" != "0" ]; then
  13         exec sudo "${0}" "${@}"
  14 fi
  15
  16 if [ "${BUS}" = "-1" ]; then
  17         rev="0x`awk '{if ($1 == "Revision") {print $NF};}' /proc/cpuinfo`"
  18         rev=$((rev & 0xffff))
  19         if [ "${rev}" -ge "4" ]; then
  20                 echo "RPi version 2 detected"
  21                 BUS=1
  22         else
  23                 echo "RPi version 1 detected"
  24                 BUS=0
  25         fi
  26 fi
  27
  28 if [ ! -e "/dev/i2c-${BUS}" ]; then
  29         modprobe i2c-dev
  30 fi
  31
  32 if [ ! -e "/sys/bus/i2c/devices/${BUS}-0068" ]; then
  33         echo "enabling RTC"
  34         modprobe rtc-ds1307
  35
  36         tcharger="0xa5"
  37         tchargertext="enabling"
  38         if [ "${BATTERY}" = "1" ]; then
  39                 tcharger="0x00"
  40                 tchargertext="disabling"
  41         fi
  42
  43         if [ "`i2cget -y "${BUS}" 0x68 0x10`" != "${tcharger}" ]; then
  44                 echo "${tchargertext} trickle-charger for supercap"
  45                 i2cset -y "${BUS}" 0x68 0x10 "${tcharger}"
  46         fi
  47         echo "ds1339 0x68" >"/sys/class/i2c-adapter/i2c-${BUS}/new_device"
  48 fi
  49
  50 if [ ! -e "/sys/bus/i2c/devices/${BUS}-0018" ]; then
  51         echo "enabling 1wire"
  52         modprobe ds2482
  53         echo "ds2482 0x18" >"/sys/class/i2c-adapter/i2c-${BUS}/new_device"
  54 fi
  55
  56 echo "resetting 868MHz extension..."
  57 if test ! -d /sys/class/gpio/gpio17; then echo 17 > /sys/class/gpio/export; fi
  58 if test ! -d /sys/class/gpio/gpio18; then echo 18 > /sys/class/gpio/export; fi
  59 echo out > /sys/class/gpio/gpio17/direction
  60 echo out > /sys/class/gpio/gpio18/direction
  61 echo 1 > /sys/class/gpio/gpio18/value
  62 echo 0 > /sys/class/gpio/gpio17/value
  63 sleep 1
  64 echo 1 > /sys/class/gpio/gpio17/value
  65 sleep 1