#!/bin/sh
#
# ruby_init  This scripts configures cold-pluging for bruby, \
#            loads additional input modules, manages the XFree \ 
#	     and display manager configuration files
#
# chkconfig: 2345 02 98
# description:	Configures the Bruby input subsystem and manages \
#		XFree and display manager configuration files.
# config: /etc/sysconfig/ruby.conf
#
# TODO 
#	* handle commented out "PciOsConfig"
# 	*? status/ ext-status
#	- show config
# 	- check wether curr. configuration matches setup ? 
#	- make it work when hotplug files not installed ?
#	  ( currently it will just just inform that they are not installed
#	  and exit )
#
# $Id: XFree-Local-multi-user-HOWTO.xml,v 1.12 2003/11/11 14:52:42 gferg Exp $
# - don't exit silently if hackvideo or modules loading is deactivated,
#   run the script to the end
# $Id: XFree-Local-multi-user-HOWTO.xml,v 1.12 2003/11/11 14:52:42 gferg Exp $
# - show keyboard status per VT ,use sed instead of head(head is in /usr)
# - *? status/ ext-status
# - (mice & evdev links)?
# $Id: XFree-Local-multi-user-HOWTO.xml,v 1.12 2003/11/11 14:52:42 gferg Exp $
# - include hackvideo handling (long time wondering what was missing)
# $Id: XFree-Local-multi-user-HOWTO.xml,v 1.12 2003/11/11 14:52:42 gferg Exp $
# - got it actually running
# - use >& /dev/null to load variables from the config file 
#   (what a mess)
# $Id: XFree-Local-multi-user-HOWTO.xml,v 1.12 2003/11/11 14:52:42 gferg Exp $
# - initial release

PATH=/sbin:/bin:/usr/sbin:/usr/bin

# source function library
if [ -f /etc/init.d/functions ]; then
. /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ]; then
	. /etc/rc.d/init.d/functions
fi

# source defaults
if [ -f /etc/sysconfig/ruby.conf ]; then
	#WTF, how to get rid of the ".... >& /dev/null"
	. /etc/sysconfig/ruby.conf >& /dev/null 
	RUBY_CONF="/etc/sysconfig/ruby.conf"
else
	action "ruby_init: Configuration file missing" /bin/false
	exit 1 
fi

function get_status() {
		run_hackvideo status
#		prefbus_used ?
#		print dumb_con=? 
		get_kbds	#and curr. active VTs
}


function get_ext_status() {
		run_input_rc status
		run_hackvideo status
#		prefbus_used ?
#		print dumb_con=?
		get_kbds	#and curr. active VTs
		get_links mouse
		get_links event
}

function run_start_restart() {
     	   	load_modules
		run_hackvideo start
     	   	run_input_rc start
     	   	run_auto_dm
     	   	run_auto_xfree
}

function run_input_rc () {
    for RC in /etc/hotplug/input.rc
    do
	eval "doit=\"\$HOTPLUG_RC_input\"" 
	if [ "$doit" != yes -a "$1" != status ]; then
	    continue
	fi
	$RC $1
	if [ "$1" != status ]; then
     	   action "bruby: configuring cold-pluged devices." $RC $1
	fi
    done
}


function run_hackvideo () {
	eval "doit=\"\$HACK_VIDEO_ENABLE\""
	if [ "$doit" != yes ]; then
	    if [ "$1" = status ]; then
		echo "XFree hackvideo not configured."
	    fi
	    return ;
	fi
	if [ -f /proc/bus/pci/hackvideo ]; then
	   if [ -f /etc/X11/XF86Config-4 ]; then
		   xf_file="/etc/X11/XF86Config-4"
	   elif [ -f /etc/X11/XF86Config ]; then
		   xf_file="/etc/X11/XF86Config"
	   else
		   action "bruby: XFree configuration file not found" /bin/false
		   exit 1
	   fi
	   #fi
	   eval "xf_hackvideo=`sed -n '/^#/d;s/^.*"PciOsConfig"[ 	]//p' $xf_file | sed -e 's/[ 	]//g'`"
	   if [ "$xf_hackvideo" = "1" ]; then
		case "$1" in 
			start)
				action "bruby: Enabling XFree hackvideo workaound." /bin/true
				/bin/echo "1" > /proc/bus/pci/hackvideo
				;;
			stop)	
				action "bruby: Disabling XFree hackvideo workaound."
				/bin/echo "0" > /proc/bus/pci/hackvideo
				;;
			status)
				eval "hack_enabled=`cat /proc/bus/pci/hackvideo`"
				if [ $hack_enabled = 1 ]; then
				    echo "XFree hackvideo activated"
				else
				    echo "XFree hackvideo not activated,"
				    echo "but enabled in configuration. "
				fi
				;;
			*)
				;;
		esac
	   else
			   action "bruby: Hackvideo not configured in XFree," /bin/false
			   action "bruby: but enabled in $RUBY_CONF." /bin/false

	   fi
	else 
				action "bruby: XFree hackvideo configured," /bin/false
				action "bruby: but kernel hackvideo support missing." /bin/false
	fi
		
}

function load_modules () {
	eval "doit=\"\$LOAD_MODULES\""
	if [ "$doit" != yes -a "$1" != status ]; then
	    return ;
	fi
     	action "bruby: loading additional modules." /bin/true
	cat $RUBY_CONF | sed -n "/input modules /,/config/p" | while read module args
	do
	  case "$module" in
	      \#*|"") continue ;;
	  esac
	  initlog -s "Loading module: $module"
	  modprobe $module $args >/dev/null 2>&1
	done
}

function run_auto_xfree () {
	eval "doit=\"\$AUTO_XFree\""
	if [ "$doit" != yes -a "$1" != status ]; then
	    return ;
	fi
	# (pixel) a kind of profile for XF86Config
	# if no XFree=XXX given on kernel command-line, restore XF86Config.standard
	for i in XF86Config XF86Config-4; do
    	   if [ -L "/etc/X11/$i" ]; then
              XFree=`sed -n 's/.*XFree=\(\w*\).*/\1/p' /proc/cmdline`
              [ -n "$XFree" ] || XFree=standard
              [ -r "/etc/X11/$i.$XFree" ] && ln -sf "$i.$XFree" "/etc/X11/$i"
    	  fi
	done
     	action "bruby: configuring XFree." /bin/true
}

function run_auto_dm () {
	eval "doit=\"\$AUTO_DM\""
	if [ "$doit" != yes -a "$1" != status ]; then
	    return ;
	fi
	#
	#the same like XF86Config but for gdm.conf & Xservers
	#
	for i in xdm/Xservers gdm/gdm.conf; do
    	   if [ -L "/etc/X11/$i" ]; then
        	DumbCon=`sed -n 's/.*dumbcon=\([0-9]*\).*/\1/p' /proc/cmdline`
        	[ -n "$DumbCon" ] || DumbCon=0
        	[ -r "/etc/X11/$i.$DumbCon" ] && ln -sf "/etc/X11/$i.$DumbCon" "/etc/X11/$i"
    	   fi
	done
     	action "bruby: configuring display manager." /bin/true
	echo "Setting up display managers for `expr $DumbCon + 1` Xservers"
}


function get_kbds() {
	j=0
	for i in /proc/bus/console/* 
	   do 
		echo
		j=`expr $j + 1`
		phys=`cat $i/keyboard`
		if [ "$phys" = "" ];then
		   echo " VT-`basename $i` : keyboard not attached"
		else
		   echo " VT-`basename $i` using :"
#		   grep -n2 "$phys" /proc/bus/input/devices | sed -e '{/^B: /s;^B:.*;;};{s;^.*: ;;};' -e "/EV=/d" 
 		   grep -B2 -A1 "$phys" /proc/bus/input/devices | sed 's;^.*: ;;'  
		fi
	   done
	echo
	echo "Total of $j VT's avialable."
}

function get_links() {
		echo
 		for i in  /dev/input/$1*br
		    do 
			real=`ls -l $i 2>/dev/null | sed "{s;^.*/dev/input/;;};{s; ->;;}" | cut -d " " -f 2`
			if [ "$real" != "" ]; then
			   echo "$i" 
			   sed -e '/Name/,/Handl/s/.*: //;{/^B: /s;^B:.*;;};'  /proc/bus/input/devices | grep -B2 -A1 "$real"
			else
			    exit 0
			fi     
		    done
}

if [ -f /proc/bus/console  -o  -n tmp=`uname -r | sed -n 's:ruby::p'` ]; then
   if [ -x /etc/hotplug/input.rc  -a  -f /etc/hotplug/input.agent ]; then	

	case "$1" in
    		start|restart)
			run_start_restart
			;;
    		status)
			get_status
			touch /var/lock/subsys/ruby
			;;
    		ext-status)
			get_ext_status
			touch /var/lock/subsys/ruby
			;;
    		stop)
			#run_hackvideo stop
			run_input_rc stop
        		rm -f /var/lock/subsys/ruby
        		;;
    		force-reload)
			run_input_rc stop
			run_input_rc start
			touch /var/lock/subsys/ruby
        		;;

    		*)
			gprintf "Usage: %s {start|stop|restart|status|ext-status|force_reload}\n" "$0"
			exit 3
			;;
	esac

   else if [ -f /etc/hotplug/input.rc -a -f /etc/hotplug/input.agent ]; then
     	   action "Input: input.rc and input.agent installed, but not executable." /bin/false
     	   action "Input: Please check the file permissions." /bin/false
	else 
	   action "Input: Failed to configure cold plugged devices."  /bin/false
	   action "Input: input.rc or input.agent missing."  /bin/false
        fi
   fi
fi