recalbox_clcd

#!/usr/bin/python
"""
recalbox_clcd.py
Author       : Godhunter74 with  a lot of of inspiration and work from zzeromin, member of Raspberrypi Village
Creation Date: Mar 08, 2017
Blog         : https://forum.recalbox.com/topic/5777/relier-%C3%A0-un-%C3%A9cran-et-afficher-du-texte and original work : http://rasplay.org, http://forums.rasplay.org/, https://zzeromin.tumblr.com/
Thanks to    : zzeromin smyani, zerocool, GreatKStar

Free and open for all to use. But put credit where credit is due.

#Reference:
I2C_LCD_driver developed by: Denis Pleic ( https://gist.github.com/DenisFromHR/cc863375a6e19dce359d )
IP_Script Developed by: AndyPi ( http://andypi.co.uk/ )
lcdScroll Developed by: Eric Pavey ( https://bitbucket.org/AK_Eric/my-pi-projects/src/28302f8f5657599e29cb5d55573d192b9fa30265/Adafruit_CharLCDPlate/lcdScroll.py?at=master&fileviewer=file-view-default )

#Notice:
recalbox_clcd.py require I2C_LCD_driver.py, lcdScroll.py

Small script written in Python for recalbox project (https://www.recalbox.com/)
running on Raspberry Pi 1,2,3, which displays all neccessary info on a 16x2 LCD display
#Features:
1. Current date and time, IP address of eth0, wlan0
2. CPU temperature and speed
3. Emulation and ROM information extracet from gamelist                      !!!!!!!!!!     YOU MUST SCRAPP YOUR ROMS        !!!!!!!!!!!!!
"""

import I2C_LCD_driver
import os
from os import popen
from sys import exit
from subprocess import *
from time import *
from datetime import datetime
from lcdScroll import Scroller
import string

def run_cmd(cmd):
   # runs whatever is in the cmd variable in the terminal
   p = Popen(cmd, shell=True, stdout=PIPE)
   output = p.communicate()[0]
   return output

def get_cpu_temp():
   # get the cpu temp
   tempFile = open("/sys/class/thermal/thermal_zone0/temp")
   cpu_temp = tempFile.read()
   tempFile.close()
   return float(cpu_temp)/1000

def get_cpu_speed():
   # get the cpu speed
   tempFile = open("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq")
   cpu_speed = tempFile.read()
   tempFile.close()
   return float(cpu_speed)/1000

def getTextInside (fullText, textBefore, textAfter, index) :
    begin = -1
    end = -1
    if index < len(fullText[index:]) - len(textBefore):
        begin = fullText[index:].find(textBefore)   #on cherche le debut
        if len(fullText[index:]) >= begin +len(textBefore)+len(textAfter):
            end = fullText[index+begin +len(textBefore):].find(textAfter)       #on cherche la fin
    if begin ==-1 or end ==-1 : #-1 = pas trouve, trouve est forcement entre 0 et len(fullText)-1
        return (index, "pas_trouve")        # si on a pas retrouve le debut ou la fin on retourne une chaine vide
    else:
        return (index + begin+  end + len(textAfter), fullText[index + begin+ len(textBefore): index + begin+ len(textBefore)+ end])    # sinon on retourne ce qui se trouve entre les 2

mylcd = I2C_LCD_driver.lcd()
mylcd.lcd_clear()

#get ip address of eth0 connection
cmdeth = "ip addr show eth0 | grep 'inet ' | awk '{print $2}' | cut -d/ -f1"
#get ip address of wlan0 connection
cmd = "ip addr show wlan0 | grep 'inet ' | awk '{print $2}' | cut -d/ -f1"
#cmd = "ip addr show wlan1 | grep 'inet ' | awk '{print $2}' | cut -d/ -f1"

old_Temp = new_Temp = get_cpu_temp()
old_Speed = new_Speed = get_cpu_speed()
#draw icons not existing in [a-z]
icons = [
                [ 0b00000, 0b11111, 0b11011, 0b10001, 0b10001, 0b10001, 0b11111, 0b00000 ], # Ethernet
                [ 0b00000, 0b00000, 0b00001, 0b00001, 0b00101, 0b00101, 0b10101, 0b00000 ] # Wireless
        ]

# Load logo chars (icons)
mylcd.lcd_load_custom_chars(icons)

#display first message on screen
mylcd.lcd_display_string("PI STATION 2", 1, 1) #firstline
mylcd.lcd_display_string("Pwd by RECALBOX", 2, 1) #secondline
sleep(5) # 5 sec delay
mylcd.lcd_clear()
# display a second message on screen
mylcd.lcd_display_string("www.recalbox.com", 1, 1) #firstline
mylcd.lcd_display_string("RECALBOX", 2, 3) #secondline
sleep(5) # 5 sec delay
mylcd.lcd_clear() #delete strings on screen

while 1:

   mylcd.lcd_clear()
   sec = 0
   while ( sec < 5 ) :
      # wlan ip address
      ipaddr = run_cmd(cmd).replace("\n","")

      # selection of wlan or eth address
      length = len(ipaddr)
      space = ""

      if length == 0 :
         ipaddr = run_cmd(cmdeth).replace("\n","")

         if len(ipaddr) == 0 :
            ipaddr = unichr(0)+unichr(1)+" Not connected"
         else:
            if len(ipaddr) == 15 :
               ipaddr = unichr(0)+run_cmd(cmdeth)
            else :
               for i in range( 15-len(ipaddr) ) :
                  space = space + " "
               ipaddr = unichr(0)+space+run_cmd(cmdeth)

      else :
         if len(ipaddr) == 15 :
            ipaddr = unichr(1)+run_cmd(cmd)
         else :
            for i in range( 15-len(ipaddr) ) :
                space = space + " "
            ipaddr = unichr(1)+space+run_cmd(cmd)

      #print datetime.now().strftime( "%b %d  %H:%M:%S" )
      #print "IP " + str( ipaddr )
      #display the third message
      mylcd.lcd_display_string( datetime.now().strftime( "%b %d  %H:%M:%S" ), 1, 0 )
      mylcd.lcd_display_string( ipaddr, 2, 0 )
      sec = sec + 1
      sleep(1)

   mylcd.lcd_clear()
   sec = 0
   while ( sec < 5 ) :
      space = ""
      # cpu Temp & Speed information
      new_Temp = get_cpu_temp()
      new_Speed = int( get_cpu_speed() )

      if old_Temp != new_Temp or old_Speed != new_Speed :
         old_Temp = new_Temp
         old_Speed = new_Speed
         #print "CPU Temp: " + str( new_Temp )
         #print "CPU Speed: " + str( new_Speed )
     for i in range( 5 - len( str(new_Speed) ) ) :
             space = space + " "
         mylcd.lcd_display_string( "CPU Temp :" + str( new_Temp ), 1, 0 )
         mylcd.lcd_display_string( "CPU Speed: " + space + str( new_Speed ), 2, 0 )
         sec = sec + 1
         sleep(1)

   mylcd.lcd_clear()
   sec = 0
   while ( sec < 1 ) :
      # show system & rom file information

      #   system = f.readline()
         result = run_cmd("ps | grep emulatorlauncher.py | grep -v 'c python' | grep -v grep")
         (index, systeme) = getTextInside( result, "-system ", " -rom ",0)
         #~ index = 0
         (index,rom ) = getTextInside( result, "-rom ", " -emulator ",0)
         #print "systeme [" + systeme + "]"
         #print "rom [" + rom + "]"
         nom_rom= os.path.basename(rom)
         nom_rom= "./"+nom_rom
         #print "nom_rom ["+nom_rom +"]"
         f=open("/recalbox/share/roms/"+ systeme + "/gamelist.xml", 'r')    # on ouvre le fichier
         # ici on considere que le fichier est dans le meme repertoire mais tu peux aller le chercher ou tu veux avec un chemin absolu ex= "/mondossier/gamelist.xml" ou relatif ex= "../mondossier/gamelist.xml"
         buf = f.read()             # on lit tout ce qu'il y a dedans (stocke dans un buffer en RAM)
         f.close()                  #on ferme le fichier
         (index,gameData) = getTextInside( buf, "<path>" + nom_rom, "</game>",0)
         #print gameData
         #initialize all the <balise> to extract from gamelist
         name = ""
         desc = ""
         image = ""
         rating = ""
         releasedate = ""
         developer = ""
         publisher = ""
         genre = ""
         players = ""

         if gameData != "pas_trouve": # on a trouve le nom , on peut chercher aussi les autres
            (index2,name) = getTextInside( gameData, "<name>","</name>",0)  # name
            (index2,desc) = getTextInside( gameData, "<desc>","</desc>",0)  #desc
            (index2,image) = getTextInside( gameData, "<image>","</image>",0)   #image
            (index2,rating) =  getTextInside( gameData, "<rating>","</rating>",0)   #rating
            (index2,releasedate) = getTextInside( gameData, "<releasedate>","</releasedate>",0) # releasedate
            (index2,developer) = getTextInside( gameData, "<developer>","</developer>",0)   #developer
            (index2,publisher) = getTextInside( gameData, "<publisher>","</publisher>",0)   #publisher
            (index2,genre) =  getTextInside( gameData, "<genre>","</genre>",0)  #genre
            (index2,players) =  getTextInside( gameData, "<players>","</players>",0)    #players
            #print "name [" + name + "] description [" + desc + "] image [" + image + "] rating [" + str(rating) + "] releasedate [" + releasedate[:-11] + "] developer [" + developer + "] publisher [" + publisher + "] genre [" + genre + "] players [" + players + "]"
            mylcd.lcd_clear()
            firstline = name
            systemMap = {
            "Berrycade":"Berrycade",
            "fba":"FinalBurn Alpha",
            "gba":"GameBoy Advance",
            "kodi":"KODI",
            "mame-mame4all":"MAME4ALL",
            "mame-advmame":"AdvanceMAME",
            "mame-libretro":"MAME-libretro",
            "msx":"MSX",
            "nes":"Famicom",   # Nintendo Entertainment System
            "psp":"PSPortable",    # PlayStation Portable
            "psx":"Playstation",
            "ports":"Ports",
            "snes":"Super Famicom", # Super Nintendo Entertainment System
            "notice":"TURN OFF",
            }
            system = name[:15]
            plateforme = systemMap.get(systeme)
            rom = "Titre : " + name + " - Plateforme : " + plateforme + " - Genre : " + genre + " - " + "joueur(s) - Note : " + str(rating) + "% - Date de sortie : " + releasedate[:-11] + " par " + developer + " pour " + publisher + "."
            #print "firstline : [" + firstline + "]"
            #print "secondline : [" + secondline + "]"
            mylcd.lcd_display_string( "%s" %(rom), 2 )
            mylcd.lcd_display_string( "%s" %(system), 1, 0 )
            sleep(3)
            mylcd.lcd_clear()
         flag = "TURN OFF"
         lines = rom
         wait = 0
         speed = 0.1

         # Create scroller instance:
         scroller = Scroller(lines=lines)
         while True :
            if wait < 10 and systeme != flag:
               message = scroller.scroll()
               mylcd.lcd_display_string( "%s" %(system), 1, 0 )
               mylcd.lcd_display_string( "%s" %(message), 2 )
               sleep(speed)
               wait = wait + 0.1
            else :
               break
         sec = sec + 1
         sleep(1)