Add OnOffShim to powerswitches

[deleted]

USE INSTRUCTIONS FOR BATOCERA >5.20 from posting #4 ---> HERE

Hello @nadenislamarre do you can add the SHIM On Off power switch to the list of supported power switches?
The product can be seen here - it's quite a cheap but very good working solution for small embedded systems.

I added some code to powerswitch.sh

# https://shop.pimoroni.com/products/onoff-shim/
onoffshim_start()
{
    # This is Button command (GPIO17 default)
    echo $1 > /sys/class/gpio/export
    echo in > /sys/class/gpio/gpio$1/direction

    power=$(cat /sys/class/gpio/gpio$1/value)
     [ $power -eq 0 ] && switchtype=1 #Sliding Switch
     [ $power -eq 1 ] && switchtype=0 #Momentary push button

    until [ $power -eq $switchtype ]; do
        power=$(cat /sys/class/gpio/gpio$1/value)
        sleep 1
    done

    # Switch off
    if [ "$?" = "0" ]; then
        touch "/tmp/poweroff.please"
        poweroff
    fi

}

onoffshim_stop()
{
    # Cleanup GPIO init
    for i in $*; do
        echo "$i" > /sys/class/gpio/unexport
    done
}

The function is called with onoffshim_$1 17 this device is a bit of "special" we need to add a dto-overlay to /boot/config.txt otherwise reboots won't be detected. So we need to add

dtoverlay=gpio-poweroff,gpiopin=4,active_low=1,input=1

it may be worth to check that line inside the onoff function and to add it to config.txt?

[deleted]

A test within the script could be

    if ! grep -q "^dtoverlay=gpio-poweroff,gpiopin=$2,active_low=1,input=1" "/boot/config.txt"; then
         mount -o remount, rw /boot
         echo "dtoverlay=gpio-poweroff,gpiopin=$2,active_low=1,input=1" >> "/boot/config.txt"
    fi

The $2 is the PowerCtrl Pin 😉 (GPIO 4 as default)

wit this added in the script above the call would be
onoffshim_$1 17 4 as default

[deleted]

To Mention: This is version based on Batocera 5.20, so RetroFlag script is not available here

I will update the script as Batocera 5.21 is released

Okay... tested the script it works best and seems fail safe.

# https://shop.pimoroni.com/products/onoff-shim/
onoffshim_start()
{
    #Check if dtooverlay is setted in boot/config
    #This is needed to do proper restarts/shutdowns
    if ! grep -q "^dtoverlay=gpio-poweroff,gpiopin=$2,active_low=1,input=1" "/boot/config.txt"; then
         mount -o remount, rw /boot
         echo "dtoverlay=gpio-poweroff,gpiopin=$2,active_low=1,input=1" >> "/boot/config.txt"
    fi

    # This is Button command (GPIO17 default)
    echo $1 > /sys/class/gpio/export
    echo in > /sys/class/gpio/gpio$1/direction

    power=$(cat /sys/class/gpio/gpio$1/value)
    [ $power -eq 0 ] && switchtype=1 #Sliding Switch
    [ $power -eq 1 ] && switchtype=0 #Momentary push button

    until [ $power -eq $switchtype ]; do
        power=$(cat /sys/class/gpio/gpio$1/value)
        sleep 1
    done

    # Switch off
    if [ "$?" = "0" ]; then
        touch "/tmp/poweroff.please"
        poweroff
    fi

}

onoffshim_stop()
{
    # Cleanup GPIO init
    for i in $*; do
        echo "$i" > /sys/class/gpio/unexport
    done
}

Script call is onoffshim_$1 17 4
GPIO 17 is button
GPIO 4 is powerctrl

full script can be downloaded here

edit file powerswitch with nano /recalbox/scripts/powerswitch.sh

or install with cd /recalbox/scripts; wget -N https://raw.githubusercontent.com/crcerror/SomeOtherScript/master/Batocera/powerswitch.sh; chmod +x powerswitch.sh; ./recalbox-save-overlay.sh

[deleted]

I decided to not update this script anymore.
Manual install!

For BATOCERA 5.21

Please edit nano /etc/init.d/S92switch and add ONOFFSHIM to switch array
Please add code snippet from posting #3 (above one) to file /usr/bin/rpi_gpioswitch

Edit this file with nano /usr/bin/rpi_gpioswitch
last but not least write to file overlay with /recalbox/scripts/recalbox-save-overlay.sh