initrd/scripts/0-auto-detect

   1 #
   2 # By Chih-Wei Huang <cwhuang@linux.org.tw>
   3 # Last updated 2009/07/18
   4 #
   5 # License: GNU Public License
   6 # We explicitely grant the right to use the scripts
   7 # with Android-x86 project.
   8 #
   9
  10 # An auto detect function provided by kinneko
  11 auto_detect()
  12 {
  13         tmp=/tmp/dev2mod
  14         echo 'dev2mod() { while read dev; do case $dev in' > $tmp
  15         sort -r /lib/modules/`uname -r`/modules.alias | \
  16                 sed -n 's/^alias  *\([^ ]*\)  *\(.*\)/\1)modprobe \2;;/p' >> $tmp
  17         echo 'esac; done; }' >> $tmp
  18         source $tmp
  19         cat /sys/bus/*/devices/*/modalias | dev2mod
  20 }
  21
  22 # FB0DEV: framebuffer driver
  23 # LANDEV: lan driver
  24 # WIFDEV: wifi driver
  25 # SNDDEV: sound driver
  26 # CAMDEV: camera driver
  27 # PREDEV: any module the drivers depend on but can't be loaded automatically
  28
  29 get_asus_info()
  30 {
  31         # common for all Eee PC models
  32         [ -c /dev/fb0 ] || FB0DEV=i915
  33         PREDEV=snd-hda-codec-realtek
  34         SNDDEV=snd-hda-intel
  35         CAMDEV=uvcvideo
  36
  37         board=`cat /sys/class/dmi/id/product_name`
  38         # assume Eee PC models
  39         case "$board" in
  40                 700|701|900)
  41                         LANDEV=atl2
  42                         WIFDEV=ath5k
  43                         ;;
  44                 701SD|900SD)
  45                         LANDEV=atl1e
  46                         WIFDEV=rtl8187se
  47                         ;;
  48                 900A|904HD|1000HD)
  49                         LANDEV=atl1e
  50                         WIFDEV=ath5k
  51                         ;;
  52                 901|1000|1000H)
  53                         LANDEV=atl1e
  54                         WIFDEV=rt2860sta
  55                         ;;
  56                 ET1602*)
  57                         FB0DEV=
  58                         UVESA_MODE=${UVESA_MODE:-1366x768}
  59                         LANDEV=r8169
  60                         WIFDEV=rt2860sta
  61                         ;;
  62                 T91)
  63                         FB0DEV=
  64                         UVESA_MODE=${UVESA_MODE:-1024x600}
  65                         LANDEV=atl1e
  66                         WIFDEV=ath9k
  67                         ;;
  68                 *)
  69                         LANDEV=atl1e
  70                         WIFDEV=ath9k
  71                         ;;
  72         esac
  73 }
  74
  75 get_vbox_info()
  76 {
  77         LANDEV=pcnet32
  78         SNDDEV="snd-sb16 isapnp=0 irq=5"
  79 }
  80
  81 get_qemu_info()
  82 {
  83         LANDEV=8139cp
  84         SNDDEV=snd-ens1370
  85 }
  86
  87 get_vmware_info()
  88 {
  89         LANDEV=pcnet32
  90         SNDDEV=snd-ens1371
  91 }
  92
  93 check_product()
  94 {
  95         grep -q "$1" /sys/class/dmi/id/uevent
  96 }
  97
  98 detect_hardware()
  99 {
 100         check_product ASUSTeK && get_asus_info && return 0
 101         check_product Acer.*AO && get_ao_info && return 0
 102         check_product VirtualBox && get_vbox_info && return 0
 103         check_product QEMU && get_qemu_info && return 0
 104         check_product VMware && get_vmware_info && return 0
 105 }
 106
 107 load_modules()
 108 {
 109         detect_hardware
 110         if [ $? -eq 0 ]; then
 111                 for m in $PREDEV; do
 112                         modprobe $m
 113                 done
 114                 [ -n "$FB0DEV" -a -z "$UVESA_MODE" ] && modprobe $FB0DEV
 115                 [ -n "$LANDEV" ] && modprobe $LANDEV
 116                 [ -n "$WIFDEV" ] && modprobe $WIFDEV
 117                 [ -n "$SNDDEV" ] && modprobe $SNDDEV
 118                 [ -n "$CAMDEV" ] && modprobe $CAMDEV
 119         else
 120                 auto_detect
 121         fi
 122
 123         mdev -s
 124         [ -d /proc/asound/card0 ] || modprobe snd-dummy
 125         [ -c /dev/fb0 ] || modprobe uvesafb mode_option=${UVESA_MODE:-800x600}-16 ${UVESA_OPTION:-mtrr=3 scroll=ywrap}
 126 }