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rgpio_driver
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rgpio_driver
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#!/bin/sh
### BEGIN INIT INFO
# Short-Description: Driver to send Relays values and read Digital Inputs in loop for ever
# Description: rgpio is used to connect external Relay box with ModBus/RTU control
### END INIT INFO
exec 2>&1
conf_unit1_relay="/data/RemoteGPIO/FileSets/Conf/Relays_unit1.conf"
conf_unit1_digitalinput="/data/RemoteGPIO/FileSets/Conf/Digital_Inputs_unit1.conf"
conf_unit2_relay="/data/RemoteGPIO/FileSets/Conf/Relays_unit2.conf"
conf_unit2_digitalinput="/data/RemoteGPIO/FileSets/Conf/Digital_Inputs_unit2.conf"
conf_unit3_relay="/data/RemoteGPIO/FileSets/Conf/Relays_unit3.conf"
conf_unit3_digitalinput="/data/RemoteGPIO/FileSets/Conf/Digital_Inputs_unit3.conf"
zero=0
prev_const1=0
prev_const2=0
prev_const3=0
prev_statea=0
prev_stateb=0
prev_statec=0
timer=$(date +%s)
##
## Handle Dbus Settings
###############################
get_setting()
{
dbus-send --print-reply=literal --system --type=method_call --dest=com.victronenergy.settings $1 com.victronenergy.BusItem.GetValue | awk '/int32/ { print $3 }'
}
set_setting()
{
dbus-send --print-reply=literal --system --type=method_call --dest=com.victronenergy.settings $1 com.victronenergy.BusItem.SetValue $2 >> /dev/null
}
get_string()
{
dbus-send --print-reply=literal --system --type=method_call --dest=com.victronenergy.settings $1 com.victronenergy.BusItem.GetValue | awk '/variant/ { print $2 }'
}
readrelays1=$(get_setting /Settings/RemoteGPIO/Unit1/ReadRelays)
readdigin1=$(get_setting /Settings/RemoteGPIO/Unit1/ReadDigin)
readrelays2=$(get_setting /Settings/RemoteGPIO/Unit2/ReadRelays)
readdigin2=$(get_setting /Settings/RemoteGPIO/Unit2/ReadDigin)
readrelays3=$(get_setting /Settings/RemoteGPIO/Unit3/ReadRelays)
readdigin3=$(get_setting /Settings/RemoteGPIO/Unit3/ReadDigin)
##
## Handle up to 3 units and multi-protocol
###########################################
nbunit=$(get_setting /Settings/RemoteGPIO/NumberUnits)
case $nbunit in
0)
# Do nothing
;;
1)
# One unit. Reading Protocol, port and IP address
Protocol_unit1=$(get_setting /Settings/RemoteGPIO/Unit1/Protocol)
Port_Unit1=$(get_string /Settings/RemoteGPIO/Unit1/USB_Port)
IP_Unit1=$(get_string /Settings/RemoteGPIO/Unit1/IP)
;;
2)
# Two units. Reading Protocols, ports and IP addresses
Protocol_unit1=$(get_setting /Settings/RemoteGPIO/Unit1/Protocol)
Port_Unit1=$(get_string /Settings/RemoteGPIO/Unit1/USB_Port)
IP_Unit1=$(get_string /Settings/RemoteGPIO/Unit1/IP)
Protocol_unit2=$(get_setting /Settings/RemoteGPIO/Unit2/Protocol)
Port_Unit2=$(get_string /Settings/RemoteGPIO/Unit2/USB_Port)
IP_Unit2=$(get_string /Settings/RemoteGPIO/Unit2/IP)
;;
3)
# Three units. Reading Protocols, ports and IP addresses
Protocol_unit1=$(get_setting /Settings/RemoteGPIO/Unit1/Protocol)
Port_Unit1=$(get_string /Settings/RemoteGPIO/Unit1/USB_Port)
IP_Unit1=$(get_string /Settings/RemoteGPIO/Unit1/IP)
Protocol_unit2=$(get_setting /Settings/RemoteGPIO/Unit2/Protocol)
Port_Unit2=$(get_string /Settings/RemoteGPIO/Unit2/USB_Port)
IP_Unit2=$(get_string /Settings/RemoteGPIO/Unit2/IP)
Protocol_unit3=$(get_setting /Settings/RemoteGPIO/Unit3/Protocol)
Port_Unit3=$(get_string /Settings/RemoteGPIO/Unit3/USB_Port)
IP_Unit3=$(get_string /Settings/RemoteGPIO/Unit3/IP)
;;
esac
##
## Main loop
###############################
while true
do
##
## Handle Unit1 with up to 8x Relays
#################################
index=1
i=1
j=256
const=0
for Relay in `cat $conf_unit1_relay`
do
value=`cat $Relay`
if [[ $value -eq $zero ]]
then
const=$((const+j))
else
const=$((const+j+i))
fi
index=$((index+1))
i=$((i*2))
j=$((256*i))
done
# Trying to limit resources usage so talking to Unit only if relay change
if [[ $const != $prev_const1 ]]
then
case $Protocol_unit1 in
0) # RS485
/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 3 -s 1 -c 1 -a 1 $Port_Unit1 $const >> /dev/null
;;
1) # TCP
/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 3 -c 1 -a 1 $IP_Unit1 $const >> /dev/null
;;
esac
prev_const1=$((const))
fi
##
## Handle Unit2 with up to 8x Relays
#################################
if [[ $nbunit -eq 2 || $nbunit -eq 3 ]]; then
index=1
i=1
j=256
const=0
for Relay in `cat $conf_unit2_relay`
do
value=`cat $Relay`
if [ $value -eq $zero ]
then
const=$((const+j))
else
const=$((const+j+i))
fi
index=$((index+1))
i=$((i*2))
j=$((256*i))
done
# Trying to limit resources usage so talking to Unit only if relay change
if [ $const != $prev_const2 ]; then
case $Protocol_unit2 in
0) # RS485
/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 3 -s 1 -c 1 -a 2 $Port_Unit2 $const >> /dev/null
;;
1) # TCP
/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 3 -c 1 -a 2 $IP_Unit2 $const >> /dev/null
;;
esac
fi
prev_const2=$((const))
fi
##
## Handle Unit3 with up to 8x Relays
#################################
if [[ $nbunit -eq 3 ]]; then
index=1
i=1
j=256
const=0
for Relay in `cat $conf_unit3_relay`
do
value=`cat $Relay`
if [ $value -eq $zero ]; then
const=$((const+j))
else
const=$((const+j+i))
fi
index=$((index+1))
i=$((i*2))
j=$((256*i))
done
# Trying to limit resources usage so talking to Unit only if relay change
if [ $const != $prev_const3 ]
then
case $Protocol_unit3 in
0) # RS485
/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 3 -s 1 -c 1 -a 3 $Port_Unit3 $const >> /dev/null
;;
1) # TCP
/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 3 -c 1 -a 3 $IP_Unit3 $const >> /dev/null
;;
esac
fi
prev_const3=$((const))
fi
##
## Handle Unit1 with up to 8x Digital_Inputs
#################################
if [[ $readdigin1 -eq 1 ]]; then
case $Protocol_unit1 in
0) # RS485
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 11 -s 1 -c 1 -a 1 $Port_Unit1) | awk '{print $NF}')
number=$(($msg))
;;
1) # TCP
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 11 -c 1 -a 1 $IP_Unit1) | awk '{print $NF}')
number=$(($msg))
;;
esac
if ((number >= 0 && number <= 255)); then
# Parsing number for writing the Input Devices
i=1
for Digital_Input in `cat $conf_unit1_digitalinput`
do
echo $((($number & $i) != 0)) > $Digital_Input
i=$((i*2))
done
fi
fi
##
## Handle Unit2 with up to 8x Digital_Inputs
#################################
if [[ $readdigin2 -eq 1 ]]; then
if [[ $nbunit -eq 2 || $nbunit -eq 3 ]]
then
case $Protocol_unit2 in
0) # RS485
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 11 -s 1 -c 1 -a 2 $Port_Unit2) | awk '{print $NF}')
number=$(($msg))
;;
1) # TCP
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 11 -c 1 -a 2 $IP_Unit2) | awk '{print $NF}')
number=$(($msg))
;;
esac
if ((number >= 0 && number <= 255)); then
# Parsing number for writing the Input Devices
i=1
for Digital_Input in `cat $conf_unit2_digitalinput`
do
echo $((($number & $i) != 0)) > $Digital_Input
i=$((i*2))
done
fi
fi
fi
##
## Handle Unit3 with up to 8x Digital_Inputs
#################################
if [[ $readdigin3 -eq 1 ]]; then
if [[ $nbunit -eq 3 ]]
then
case $Protocol_unit3 in
0) # RS485
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 11 -s 1 -c 1 -a 3 $Port_Unit3) | awk '{print $NF}')
number=$(($msg))
;;
1) # TCP
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 11 -c 1 -a 3 $IP_Unit3) | awk '{print $NF}')
number=$(($msg))
;;
esac
if ((number >= 0 && number <= 255)); then
# Parsing number for writing the Input Devices
i=1
for Digital_Input in `cat $conf_unit3_digitalinput`
do
echo $((($number & $i) != 0)) > $Digital_Input
i=$((i*2))
done
fi
fi
fi
if [[ $readrelays1 -eq 1 ]]; then
##
## Handle reading relays Unit1 with up to 8x Relays
#################################
case $Protocol_unit1 in
0) # RS485
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 2 -s 1 -c 1 -a 1 $Port_Unit1) | awk '{print $NF}')
number=$(($msg))
;;
1) # TCP
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 2 -c 1 -a 1 $IP_Unit1) | awk '{print $NF}')
number=$(($msg))
;;
esac
if (( number >= 0 && number <= 255 && number != prev_statea )); then
# Parsing number for writing the Relay Status
i=1
for Relay in `cat $conf_unit1_relay`
do
echo $((($number & $i) != 0)) > $Relay
i=$((i*2))
done
prev_statea=$((number))
fi
fi
##
## Handle reading relays Unit2 with up to 8x Relays
#################################
if [[ $readrelays2 -eq 1 ]]; then
if [[ $nbunit -eq 2 || $nbunit -eq 3 ]]; then
case $Protocol_unit2 in
0) # RS485
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 2 -s 1 -c 1 -a 2 $Port_Unit2) | awk '{print $NF}')
number=$(($msg))
;;
1) # TCP
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 2 -c 1 -a 2 $IP_Unit2) | awk '{print $NF}')
number=$(($msg))
;;
esac
if (( number >= 0 && number <= 255 && number != prev_stateb )); then
# Parsing number for writing the Relay Status
i=1
for Relay in `cat $conf_unit2_relay`
do
echo $((($number & $i) != 0)) > $Relay
i=$((i*2))
done
prev_stateb=$((number))
fi
fi
fi
##
## Handle reading relays Unit3 with up to 8x Relays
#################################
if [[ $readrelays3 -eq 1 ]]; then
if [[ $nbunit -eq 3 ]]; then
case $Protocol_unit3 in
0) # RS485
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m rtu -b 115200 -p none -d 8 -1 -r 2 -s 1 -c 1 -a 3 $Port_Unit3) | awk '{print $NF}')
number=$(($msg))
;;
1) # TCP
msg=$(echo -n $(/data/RemoteGPIO/bin/modpoll/arm-linux-gnueabihf/modpoll -m enc -1 -r 2 -c 1 -a 3 $IP_Unit3) | awk '{print $NF}')
number=$(($msg))
;;
esac
if (( number >= 0 && number <= 255 && number != prev_statec )); then
# Parsing number for writing the Relay Status
i=1
for Relay in `cat $conf_unit3_relay`
do
echo $((($number & $i) != 0)) > $Relay
i=$((i*2))
done
prev_statec=$((number))
fi
fi
fi
##
## Latency vs CPU load
#################################
sleep 0.1
##
## Heart Beat
################################
if (( (timer + 5) < $(date +%s) ))
then
timer=$(date +%s)
set_setting /Settings/Watchdog/RemoteGPIO variant:int32:$timer
echo "Heartbeat = "$(date -d@$timer)
fi
done