#!/bin/sh
#
# universal (distro independent) hardware autoconfiguration script for 
# OpenSLX linux diskless clients, using hwconfig from knoppix as base tool 
#
# Dirk von Suchodoletz <dvs@OpenSLX.com>, 03-09-2006
#
# (c) 2003 - 2006 - RZ Universitaet Freiburg
# (c) 2006 - OpenSLX.org

# local functions used within hwautocfg
displaysetup () {
# (temporary) configuration file
local xfc=$1
# define some defaults
local HSYNCRANGE="31.5-63.5"
local VSYNCRANGE="60-90"
local DEFAULTMODES='"1024x768" "800x600" "640x480"'
local DEFAULTCOLORDPT=24
# set variables representing the xorg.conf sections (version 6.9.x)
local Module='\tLoad\t\t"dbe"\n
\tLoad\t\t"extmod"\n
\tLoad\t\t"type1"\n
\tLoad\t\t"speedo"\n
\tLoad\t\t"freetype"\n
\tLoad\t\t"v4l"'
local ServerFlags='\tOption\t\t"AllowMouseOpenFail"\n
\tOption\t\t"blank time"\t\t"5"\n
\tOption\t\t"standby time"\t\t"10"\n
\tOption\t\t"suspend time"\t\t"15"\n
\tOption\t\t"off time"\t\t"20"'
local Files='\tRgbPath\t\t"/usr/X11R6/lib/X11/rgb"\n
\tModulePath\t"/etc/X11/modules"\n
\tModulePath\t"/usr/X11R6/lib/modules"\n
\tFontPath\t"/usr/X11R6/lib/X11/fonts/misc/:unscaled"\n
\tFontPath\t"/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"\n
\tFontPath\t"/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"'
local InputDevice='\tIdentifier\t"Keyboard1"\n
\tDriver\t\t"keyboard"\n
\tOption\t\t"XkbRules"\t\t"xfree86"\n
\tOption\t\t"XkbLayout"\t\t"XKEYBOARD"\n
\tOption\t\t"XkbModel"\t\t"pc105"'
local InputMouseDef='\tIdentifier  "Mouse1"\n
\tDriver\t\t"mouse"\n
\tOption\t\t"Protocol"\t\t"imps/2"\n
\tOption\t\t"Device"\t\t"/dev/input/mice"\n
\tOption\t\t"Emulate3Buttons"\n
\tOption\t\t"ZAxisMapping"\t\t"4 5"\n
\tOption\t\t"Buttons"\t\t"3"'
local InputMouseSyn='\tIdentifier  "Mouse1"\n
\tDriver\t\t"synaptics"\n
\tOption\t\t"Protocol"\t\t"explorerps/2"\n
\tOption\t\t"Device"\t\t"/dev/input/mice"\n
\tOption\t\t"Emulate3Buttons"\t"on"\n
\tOption\t\t"Buttons"\t\t"5"\n
\tOption\t\t"InputFashion"\t\t"Mouse"\n
\tOption\t\t"SHMConfig"\t\t"on"\n
\tOption\t\t"ZAxisMapping"\t\t"4 5"'
local Monitor='\tIdentifier "Default"\n
\tModelName\t"MODEL"\n
\tOption\t\t"CalcAlgorithm"\t"CheckDesktopGeometry"\n
\tHorizSync\tHS\n
\tVertRefresh\tVS\n
\tOption\t"DPMS"\t\t"true"'
local Device='\tIdentifier\t"StdGraphics"\n
\tVendorName\t"XDESC"\n
\tDriver\t\t"XMODULE"'
local Screen='\tIdentifier\t"Screen 1"\n
\tDevice\t\t"StdGraphics"\n
\tMonitor\t\t"Default"\n
\tDefaultColorDepth CDP'
local ServerLayout='\tIdentifier\t"Simple Layout"\n
\tScreen\t\t"Screen 1"\n
\tInputDevice\t"Keyboard1"\t"CoreKeyboard"\n
\tInputDevice\t"Mouse1"\t"CorePointer"\n
\tOption\t\t"BlankTime"\t"5"\n
\tOption\t\t"StandbyTime"\t"10"\n
\tOption\t\t"SuspendTime"\t"20"\n
\tOption\t\t"OffTime"\t"30"'
local DRI='\tGroup\t\t"video"\n
\tMode\t\t0666'

# displayvars may overwrite the above settings
displayvars

if [ -n "$hw_graphic" ] ; then
  DRV=${hw_graphic% *}
  CDP=${hw_graphic##* }
  if [ -z "$DRV" ] ; then error "$hcfg_gfxdrv" nonfatal
    XMODULE=vesa
  fi
fi
if [ -z "$CDP" ] ; then error "$hcfg_gfxcdp" nonfatal
  CDP=${DEFAULTCOLORDPT}
fi

if [ -n "$hw_monitor" ] ; then
  # just cut all starting from k(Hz) ...
  HS=${hw_monitor%k*}
  VS=${hw_monitor%Hz*}
  [ "${hw_monitor}" == "$VS" ] && VS=${hw_monitor%hz*}
  VS=${VS##* }
  SCR_MODES="\"${hw_monitor##* }\""
else
  # gather information about the monitor capabilities 
  screenres > /tmp/screenres
  VERTSR=`cat /tmp/screenres | sed -n \
    '/Vertical Frequency Range/s/[^0-9]* \([0-9-]*\)/\1/p'`
  HORISR=`cat /tmp/screenres | sed -n \
    '/Horizontal Frequency Range/s/[^0-9]* \([0-9-]*\)/\1/p'`
  HS=$HORISR
  VS=$VERTSR
  # compute max resolution
  SCR_MODES=`cat /tmp/screenres | sed -n \
    '/Recommended Screen Modes:/s/[^"]*\(.*\)/\1/p'`
fi

if [ -z "$HS" ] ; then #error "$hcfg_hfrq" nonfatal
  HS=${HSYNCRANGE}
fi
if [ -z "$VS" ] ; then #error "$hcfg_vfrq" nonfatal
  VS=${VSYNCRANGE}
fi
if [ -z "$SCR_MODES" ] ; then #error "$hcfg_res" nonfatal
  SCR_MODES=${DEFAULTMODES}
fi
monmanual=yes 

# check for special X driver (fglrx, nvidia, ...)
check_glx

# finally write config file
echo -e "#\n# autogenerated X hardware configuration by $0\n# \
Dirk von Suchodoletz <dirk@goe.net>, $date" >$xfc
echo -e "# DO NOT EDIT THIS FILE BUT '$0' INSTEAD!\n#" \
  >>$xfc
for section in Files ServerFlags Module InputDevice Monitor \
    Screen Device ServerLayout DRI ; do
  echo "Section \"$section\"" >>$xfc
  case "$section" in
    Files)
      echo -e ${Files} >>$xfc
      # check for 64bit CPU/installation (fixme!!)
      [ -n "$amd64" ] && \
        echo '"\tModulePath\t"/usr/X11R6/lib64/modules"\n' >>$xfc
      for i in ${D_XFONTPATH} ; do
        echo -e "\tFontPath\t\"$i/\"" >>$xfc ; done
    ;;
    ServerFlags)  
      echo -e ${ServerFlags} >>$xfc
    ;;
    Device)
      echo -e ${Device} | \
        sed -e "s,XMODULE,${XMODULE}," -e "s%XDESC%${XDESC}%" >>$xfc
        # write TV config - no problem, if no TV is connected
	[ -n "$TVOUT" ] && echo -e $TVOUT >>$xfc
        [ x$DRV = "xs3virge" ] && \
	  echo -e "\tOption\t\t\"XVideo\" \"Off\"\n" >>$xfc
	[ x$DRV = "xnvidia" ] && {
	  echo -e "\tOption\t\t\"NvAGP\" \"3\"" >>$xfc
	  echo -e "\tOption\t\t\"NoLogo\" \"1\"" >>$xfc ; }
    ;;
    Module)
      echo -e ${Module} >>$xfc
      #[ "x$DRM" = "xyes" ] && \
        echo -e "\tLoad\t\t\"dri\"" >>$xfc
      [ x$GLX != "xno" ] && \
        echo -e "\tLoad\t\t\"glx\"" >>$xfc
    ;;
    Monitor)
      echo -e ${Monitor} | \
        sed -e "s,HS,${HS},g" -e "s,VS,${VS},g" >>$xfc
    ;;
    InputDevice)
      echo -e ${InputDevice} | sed -e "s,XKEYBOARD,${XKEYBOARD},g" \
        >>$xfc
      [ "${XKEYBOARD}" = "de" ] && \
        echo -e '\tOption\t\t"XkbVariant"\t\t"nodeadkeys"' >>$xfc
      echo -e "EndSection\n\nSection \"$section\"" >>$xfc
      # if special synaptics touchpad was detected and specific driver
      # is present
      if strinfile "synaptics" /tmp/hwsetup.info && \
        test -e /mnt/usr/X11R6/lib/modules/input/synaptics_drv.o ; then
	echo -e $InputMouseSyn >>$xfc
      else
        echo -e $InputMouseDef >>$xfc
      fi
    ;;
    Screen)
      echo -e ${Screen} | sed -e "s,CDP,${CDP}," >>$xfc
      for BPP in 15 16 24
        do echo -e '\tSubSection "Display"\n\t\tDepth\t'\
          $BPP'\n\t\tModes\t'$SCR_MODES'\n\tEndSubSection' >>$xfc
        [ $BPP = "$CDP" ] && break
      done
    ;;
    ServerLayout)
      echo -e ${ServerLayout} >>$xfc
    ;;
    DRI)
      echo -e ${DRI} >>$xfc
    ;;
  esac
  echo -e "EndSection\n" >>$xfc
done
}

#######################################################################
# script starts here

# functions common for all distros
. /etc/functions
# functions common for all distros, messages contains all error and
# info output
. /etc/messages
# load distro specific configuration variables and functions. distro
# specific functions may overwrite functions defined in /etc/functions
. /etc/sysconfig/config
. /etc/distro-functions

# script run timer
[ $DEBUGLEVEL -eq 8 ] && echo "** HW setup started at $(sysup)"

# heavy debugging output in level 3 and above and specific for 11
[ $DEBUGLEVEL -gt 3 -a $DEBUGLEVEL -lt 8 -o $DEBUGLEVEL -eq 11 ] && \
  set -x

# set X11 configuration file
if [ -n "${D_XF86CONFFILE}" ] ; then
  D_XF86CONFFILE="/mnt/${D_XF86CONFFILE}"
else
  D_XF86CONFFILE="/mnt/etc/X11/xorg.conf"
  error "$hcfg_xcfg" nonfatal
fi

# USB core is needed for presence of /proc/bus/usb
modprobe ${MODPRV} usbcore &

# "drivers" (pseudo, placeholder strings, ...) to exclude from loading
# depending on distro more hw modules have to be excluded too. use the
# D_HWMODTOIGNORE for that purpose
DRIVERLIST=" disabled unknown ignore pcspkr synaptics keybdev kanotix\
  ${D_HWMODTOIGNORE} "
# driver blacklist (real modules which fail to load)
DRIVERLIST=${DRIVERLIST}"hw_random genericwheelusb "
# hack for pseudo modules (not to load) hopefully "usbcore" is present
# as a module, might be exchanged with any other existing ...
for i in $DRIVERLIST ; do 
  echo -e "alias\t$i\tusbcore" >> /etc/modprobe.conf
done

# load kernel module for ps2 mice
[ -f /lib/modules/${KERNEL}/kernel/drivers/input/mouse/psmouse.ko ] && \
  modprobe ${MODPRV} psmouse

# and map the mousehandler to /dev/input/mice
[ -f /lib/modules/${KERNEL}/kernel/drivers/input/mousedev.ko ] && \
  modprobe ${MODPRV} mousedev

# start the knoppix hardware autodetection tool
( hwsetup -v > /tmp/hwsetup.info && echo "hwsetup" > /tmp/hwrun1 ) & 

# ACPI configuration - at least not needed with SuSE 9.3/10.0
# needed for other distros?

# AGP configuration (agpgart and chipset specific driver)
modprobe ${MODPRV} agpgart || \
    modprobe ${MODPRV} agpgart agp_try_unsupported=1

# wait for /tmp/hwsetup.info to appear
waitfor /tmp/hwrun1 50000 || \
  error "$hcfg_hwsetup"
# load ide drivers first, takes a while to initialize
for DRIVER in cmd64x hpt366 piix slc90e66 cs5520 it821x rz1000 \
    triflex aec62xx cs5530 ns87415 sc1200 trm290 alim15x3 \
    cy82c693 opti621 serverworks via82cxxx amd74xx pdc202xx_new \
    siimage atiixp hpt34x pdc202xx_old sis5513; do
  strinfile " ${DRIVER}" /tmp/hwsetup.info && {
    IDE="yes"
    modprobe ${MODPRV} ${DRIVER} &
    DRIVERLIST="${DRIVERLIST} ${DRIVER}"; }
done
# check for IDE/SCSI (SATA)
for DRIVER in ata_piix sata_via sata_nv sata_sil sata_sis sata_svw \
    sata_sx4 sata_uli sata_vsc sata_qstor sata_promise sata_mv; do
  strinfile " ${DRIVER}" /tmp/hwsetup.info && {
    #SCSIIDE="yes"
    modprobe ${MODPRV} ${DRIVER} &
    DRIVERLIST="${DRIVERLIST} ${DRIVER}"; }
done
# check for USB, pcmcia and ieee1394 hardware drivers
for DRIVER in ohci-hcd uhci-hcd ehci-hcd ohci1394; do
  strinfile " ${DRIVER}" /tmp/hwsetup.info && {
    USB="yes"
    modprobe ${MODPRV} ${DRIVER}
    DRIVERLIST="${DRIVERLIST} ${DRIVER}"; }
done
# load usbhid (for USB keyboard/mouse) or remove usbcore module if USB 
# not present
if [ -n "$USB" ] ; then
  modprobe ${MODPRV} usbhid &
else rmmod usbcore
fi
# remove unneeded network card modules
for DRIVER in ${NWMODULES}; do
  strinfile " ${DRIVER}" /tmp/hwsetup.info || {
    rmmod ${DRIVER} &
    DRIVERLIST="${DRIVERLIST} ${DRIVER}"; }
done
# check for PCMCIA / cardbus stuff
for DRIVER in yenta_socket i82365 pd6729 tcic; do
  strinfile ${DRIVER} /tmp/hwsetup.info && {
    modprobe ${MODPRV} ${DRIVER}
    DRIVERLIST="${DRIVERLIST} ${DRIVER}"
    PCMCIA="yes"; }
done
# should we check for card reader modules too?

if [ -n "${PCMCIA}" ] ; then
  modprobe ${MODPRV} ds
fi
# sound card setup (alsa and oss compatibility drivers)
if [ -f /etc/sysconfig/sound ] ; then
  . /etc/sysconfig/sound
else DRIVER="snd-dummy"
fi
# problem with a specific module not disabled (via above trick) when 
# busybox is used
#  rmmod snd_atiixp_modem snd_atiixp
modprobe ${MODPRV} ${DRIVER}
DRIVERLIST="${DRIVERLIST} ${DRIVER} "
modprobe ${MODPRV} snd-pcm-oss 
modprobe ${MODPRV} snd-mixer-oss

# rerun the knoppix hardware autodetection tool for USB and ide devices
# like dvd or harddisk - wait a few seconds so hopefully the ide driver
# is initialized 
test -f /proc/bus/usb/devices || mount -n -t usbfs usbfs /proc/bus/usb
[ -n "$IDE" ] && modprobe -q ide_generic 2>/dev/null 
usleep 10 && hwsetup -v > /tmp/hwsetup.info
# remaining drivers listed in /tmp/hwsetup.info
cat /tmp/hwsetup.info| while read LINE ; do
  if strinstr "driver:" "${LINE}"; then
    DRIVER=${LINE##driver: }
    if ! strinstr " ${DRIVER} " "${DRIVERLIST}"; then
      strinstr "Card:" "${DRIVER}" || strinstr "ps/2" "${DRIVER}" || {
        modprobe ${MODPRV} ${DRIVER} &
        usleep 8; }
      DRIVERLIST="${DRIVERLIST} ${DRIVER}"
    fi
  fi
done
# check if USB mouse and/or keyboard is connected and remove usbhid if
# not
strinfile "genericwheelusb" /tmp/hwsetup.info || \
  (strinfile "keybdev" /tmp/hwsetup.info || rmmod usbhid)

# load IDE high level drivers
if [ -n "$IDE" ] ; then
  # you might want to check /etc/sysconfig/floppy for more info
  strinfile "ZIP" /tmp/hwsetup.info && modprobe ${MODPRV} ide-floppy
  strinfile "CDROM" /tmp/hwsetup.info && modprobe ${MODPRV} ide-cd
  strinfile "HD" /tmp/hwsetup.info && modprobe ${MODPRV} ide-disk
fi

# not rather precise ...
if strinfile "SCSI" /tmp/hwsetup.info ; then
  strinfile "CDROM" /tmp/hwsetup.info && { modprobe ${MODPRV} sr_mod;
    modprobe ${MODPRV} sg; }
  strinfile "HD" /tmp/hwsetup.info && modprobe ${MODPRV} sd_mod
  strinfile "SCANNER" /tmp/hwsetup.info && \
    echo -e 'KERNEL=="sg*",\t\tNAME="%k", GROUP="disk", MODE="666"' \
    >> /mnt/etc/udev/rules.d/04-scanner.rules
fi
# fixme - psmouse entladen, falls nicht vorhanden

# configure some variables from configuration file - wait for dhcp or ldap
# confiurator to complete
cfgcomplete
. /etc/machine-setup

# run localizator and configure keyboard and console fonts
DEFKEYTABLE="de-latin1-nodeadkeys"
localization $country
if [ -z "${KEYTABLE}" ] ; then
  error "$hcfg_keyb" nonfatal 
  KEYTABLE=${DEFKEYTABLE}
fi

# run X11 / Xorg configurator if no xorg.conf file was provided by
# ConfigTGZ (check for /rootfs/${D_XF86CONFFILE#/mnt})
if [ -f /rootfs${D_XF86CONFFILE#/mnt} ] ; then
  echo "ready" > /tmp/xready
else
  . /etc/sysconfig/xserver >/dev/null 2>&1 || error "$hcfg_hwsetup" nonfatal
  ( displaysetup /etc/xorg.conf; echo "ready" > /tmp/xready ) &
fi
  
# get idea of availabe harddisk partitions, put swap partitions into
# (/mnt)/etc/fstab and format and mount partitions of type 44 (unknown) 
for hd in $(cat /tmp/hwsetup.info|sed -n -e '/HD$/,/device:/p'| \
    sed -n -e '/device:/p' | sed -e 's/device: //') ; do
  fdisk -l /dev/$hd| sed -n "/^\/dev\//p" > /tmp/hd_part
  for hdpartnr in $(cat /tmp/hd_part | \
      sed -n -e "/ 82 /p"|sed -e "s/[[:space:]].*//") ; do
    echo -e "$hdpartnr\tswap\t\tswap\t\tdefaults\t 0 0" >> /tmp/fstab
  done
  # we use special non assigned partition type (id44) for harddisk scratch 
  # space, thus no normal filesystem will be incidentally deleted or
  # corrupted
  for hdpartnr in $(cat /tmp/hd_part | \
        sed -n -e "/ 44 /p"|sed -e "s/[[:space:]].*//") ; do
    # ext2fs_check_if_mount message supressed
    ( mkfs.ext2 -Fq $hdpartnr 2>/dev/null
      umount /mnt/tmp 2>/dev/null
      # if mounting of temp partion fails fall back to tmpfs on /tmp
      mount -n -o nocheck,noexec $hdpartnr /mnt/tmp 2>/dev/null || \
        mount -n -t tmpfs none /mnt/tmp 
      echo "$hdpartnr is mounted to /tmp" > /tmp/tmpready ) &
    echo -e "$hdpartnr\t/tmp\t\text2\t\tdefaults\t 0 0" >> /tmp/fstab
    part44=yes
    break
  done
  # put detected linux partitions into /etc/fstab with "noauto"
  for hdpartnr in $(cat /tmp/hd_part | \
        sed -n -e "/ 83 /p"|sed -e "s/[[:space:]].*//") ; do
    mkdir -p /mnt/media/${hdpartnr#/dev/*} 2>/dev/null
    echo -e "$hdpartnr\t/media/${hdpartnr#/dev/*}\tauto\t\tnoauto,\
noexec\t 0 0" >> /tmp/fstab
  done 
done
# determine if tmp preparation should wait for format/mount or not
[ -z "$part44" ] && echo "finished" > /tmp/tmpready

# wait for completion of clients root filesystem in /mnt
waitfor /tmp/fscmpl 40000
[ -f /tmp/fstab ] && cat /tmp/fstab >> /mnt/etc/fstab

# add entries to initialize keytable and consolefont to boot.ld
# postpone some commands into normal bootup environment
echo -e "\t# entries added by $0: $date" >> /mnt/etc/${D_INITDIR}/boot.ld
[ -n "${KEYTABLE}" ] && keytable
[ -n "${CONSOLE_FONT}" ] && consolefont

# finalize X configuration
# only if X is link itself (normally to /var/X11R6/bin/X) check!!
link=`ls -l /mnt/usr/X11R6/bin/X 2>/dev/null`
if strinstr "/var/X11R6" "$link" ; then
  testmkd /mnt/var/X11R6/bin
  for i in /usr/X11R6/bin/Xorg /usr/X11R6/bin/XFree86 ; do
    [ -e "/mnt/$i" ] && { ln -sf $i /mnt/var/X11R6/bin/X; break; }
  done
fi
# wait for completion of Xorg configuration
waitfor /tmp/xready 10000
cp /etc/xorg.conf ${D_XF86CONFFILE}

# script run timer
[ $DEBUGLEVEL -eq 8 ] && echo "** HW setup finished at $(sysup)"

echo "finished" > /tmp/hwcfg