GPIO ONOFF Powerswitch / Resetbutton Problem

[supernature2k]

@megakoni here is the script if you want to test:

import RPi.GPIO as GPIO
import time
import os
import thread
import datetime
import socket
import sys
import argpa**e
from datetime import datetime
from configgen import recalboxFiles
# this last one retrieves emulators bin names

pa**er = argpa**e.ArgumentPa**er(description='power manager')
pa**er.add_argument("-m", help="mode onoff or push", type=str, required=True)
args = pa**er.pa**e_args()

mode = args.m

IPADDR = "127.0.0.1"
PORTNUM = 55355
# IP and port for retroarch network commands

POWERPLUS = 3
RESETPLUS = 2
LED = 14

GPIO.setwarnings(False)		# no warnings
GPIO.setmode(GPIO.BCM)		# set up BCM GPIO numbering 
 
GPIO.setup(RESETPLUS, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# GPIO on pin 3 is the GPIO 2 in BCM mode
#to Reset+

GPIO.setup(POWERPLUS, GPIO.IN, pull_up_down=GPIO.PUD_UP)
# GPIO on pin 5 is the GPIO 3 in BCM mode
#to Power+

GPIO.setup(LED, GPIO.OUT)
GPIO.output(LED, True)
# GPIO on pin 8 is the GPIO 14 in BCM mode
#to LED+

  
# Define a threaded callback function to run in another thread when events are detected  
def button_pressed(channel):
	if channel == POWERPLUS:
		speed=0.15
		shutdownstring="shutdown -h now"
		nwcommand="QUIT"
		
	elif channel == RESETPLUS:
		speed=0.05
		shutdownstring="shutdown -r now"
		nwcommand="RESET"
		
	timer = 0
	flag = True
	while flag:
		if GPIO.input(channel) == False:
			timer += 1
			print "Button pressed"
		elif GPIO.input(channel) == True:
		
			print "Button released"
			print timer
		
			#timer adds 1 each 0.1 seconds if timer = 10, button is pressed for 1s
			if (timer > 10):
				offreset(speed, shutdownstring)
				print "shutdown"
			elif (timer >1):
				retroarch(nwcommand)
				print "retroarch"
				killthats**t(channel)
				
			timer = 0
			flag = False
		time.sleep(0.1)
		
	
#	on power short press, trying to kill all listed emus 
def killthats**t(channel):
	if channel == POWERPLUS:
		for bin in recalboxFiles.recalboxBins:
				print bin
				proc = os.path.basename(bin)
				print proc
				os.system("killall -9 "+proc)

# 	on long button press clean stop	of ES then shutdown -h or -r		
def offreset(speed, shutdownstring):
	thread.start_new_thread( blink, (speed, ))
	flag=True
	pids = [pid for pid in os.listdir('/proc') if pid.isdigit()]
	os.system("/etc/init.d/S31emulationstation stop")
	while flag:
		flag = False
		for pid in pids:
				try:
					print pid
					commandpath = open(os.path.join('/proc', pid, 'cmdline'), 'rb').read()
					if "emulationstation" in commandpath:
						flag = True
				except IOError:
					continue
	os.system(shutdownstring)

# threaded blinking function for LED	
def blink(speed):
	while True:  
			GPIO.output(LED, False)
			time.sleep(speed)
			GPIO.output(LED, True)
			time.sleep(speed)


# 	sending network command to retroarch (only exit and reset atm)		
def retroarch(nwcommand):
	try:
		s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
	except socket.error:
		print 'Failed to create socket'
		sys.exit()
	s.sendto(nwcommand, (IPADDR, PORTNUM))
		

GPIO.add_event_detect(RESETPLUS, GPIO.BOTH, callback=button_pressed, bouncetime=2)
GPIO.add_event_detect(POWERPLUS, GPIO.BOTH, callback=button_pressed, bouncetime=2)
while True:
	time.sleep(0.2)

[megakoni]

@supernature2k how do i implement that? I've never done that. Is here a tutorial for that in the forums?
And i'm curious about the network commands. Does power/reset only work if my wlan or lan is connected to my network?

[supernature2k]

@megakoni

it works without network as we use the localhost loop (127.0.0.1)

[megakoni]

@supernature2k
couldn't get the script to work on startup. It just didn't do anything for me. I used this tutorial step by step https://github.com/recalbox/recalbox-os/wiki/Add-your-own-startup-script-(EN)

[megakoni]

@supernature2k so i got the new update, but nothing changed. Or is it coming in the next update?
I didn't change the recalbox config, is there a new default one?

[supernature2k]

@megakoni what is your issue?

[megakoni]

@supernature2k i still get the power button triggered with pluging something into usb or audio jack and it shuts down. This only happens when the system.power.switch=PIN356ONOFFRESET script is enabled. So i was wondering if there is a new script for power and reset function since the new update

[supernature2k]

@megakoni no sorry, the fix is ready and should be in the next release.
Meanwhile, you can try the script posted above.

[megakoni]

@supernature2k ok thanks i'll wait then. I tried to implement (i'm a noob xD) the script but it didn't seem to run, so i don't know yet if it works

[megakoni]

@supernature2k so i got the new update.
Can you explain me how exactly the new power switch works? Reset button is i guess like 3 seconds of pressing down to reboot.
But i don't know exactly how the power switch works to turn off.
Turning on is simple, just switch it to on.
But turning off it seems i have to switch 3 times, but sometimes it does not work.
Is there a specific period of time i have to wait for the 3 times switching?

[unik314r]

Also interrested here: looks like my power and reset buttons doesn't work anymore since the last update (X-MAS update)
Any hints?

[unik314r]

@megakoni said in GPIO ONOFF Powerswitch / Resetbutton Problem:

But i don't know exactly how the power switch works to turn off.

Well I managed to find out by myself: POWER button works the exact same way as RESET button: when Recalbox ON, push the power button during 3 seconds, release it --> shutdown launched.

So according to me, you don't have to push the button 3 times.

EDIT: to show they work the same way: they have the same code line:

# grep GPIO.add_event_detect /recalbox/scripts/rpi-pin356-power.py 
GPIO.add_event_detect(RESETPLUS, GPIO.BOTH, callback=button_pressed, bouncetime=2)
GPIO.add_event_detect(POWERPLUS, GPIO.BOTH, callback=button_pressed, bouncetime=2)

[megakoni]

@unik314r but i have a power switch, not a button. My Reset trigger is a momentary button. for power i use a switch (i build my raspberry into a snes case)
and i use the system.power.switch=PIN356ONOFFRESET that was commented in the recalbox.conf.

And by the way, how and where can i find this script? And can i simply edit it?

[NeeeeB]

Have a look here :
/recalbox/scripts/

[unik314r]

@megakoni To edit a file: have a look at https://github.com/recalbox/recalbox-os/wiki/Edit-the-config.txt-file-(EN)
The file you're looking for is /recalbox/scripts/rpi-pin356-power.py .

--
I Also use a modified SNES but don't like switch buttons (Recalbox python script looks for a status change --> going from on to off is the same as going from off to on and I find it not very convenient)
So I turned the original power switch button into a momentary one (inside the SNES, a simple spring makes the button go back) so that when I want to turn on (or off) the SNES, it pushes a momentary button (that I glued inside the snes) and automatically comes back: that way, even if there is a general power cut and then power restored (or something else that electrically unplugs/plugs the SNES), the system doesn't boot with a power button positionned to off.

But I suppose this is not what you're looking for^^

[megakoni]

@unik314r thanks for the info. I also thought of glueing a button in the inside, so the "switch" then just bounces back.
But i think i stay with the switch. I just really enjoy that satisfying click sound and feel of using that original switch.
Then i'll just have to shut down switching 3 times or using the menu command. At least i get no shut downs anymore when i plug in something to usb etc.

[unik314r]

@megakoni I agree with you, the switch sound is oddly satisfying But I have it on my original non-modified SNES