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 # TODO: implement a more generic auto detection by scanning /sys
  11 # For now we just look up the machine name.
  12
  13 # FB0DEV: framebuffer driver
  14 # LANDEV: lan driver
  15 # WIFDEV: wifi driver
  16 # SNDDEV: sound driver
  17 # CAMDEV: camera driver
  18 # PREDEV: any module the drivers depend on but can't be loaded automatically
  19
  20 get_asus_info()
  21 {
  22         board=`cat /sys/class/dmi/id/board_name`
  23         # assume Eee PC models
  24         case "$board" in
  25                 700|701|900)
  26                         LANDEV=atl2
  27                         WIFDEV=ath5k
  28                         ;;
  29                 701SD|900SD)
  30                         LANDEV=atl1e
  31                         WIFDEV=rtl8187se
  32                         ;;
  33                 900A|904HD)
  34                         LANDEV=atl1e
  35                         WIFDEV=ath5k
  36                         ;;
  37                 *)
  38                         LANDEV=atl1e
  39                         WIFDEV=ath9k
  40 #                       WIFDEV=rt2860sta
  41                         ;;
  42         esac
  43
  44         # common for all Eee PC models
  45         FB0DEV=i915
  46         SNDDEV=snd-hda-intel
  47         CAMDEV=uvcvideo
  48         PREDEV=snd-hda-codec-realtek
  49 }
  50
  51 get_vbox_info()
  52 {
  53         LANDEV=pcnet32
  54         SNDDEV="snd-sb16 isapnp=0 irq=5"
  55 }
  56
  57 get_qemu_info()
  58 {
  59         LANDEV=8139cp
  60         SNDDEV=snd-ens1370
  61 }
  62
  63 get_vmware_info()
  64 {
  65         LANDEV=pcnet32
  66         SNDDEV=snd-ens1371
  67 }
  68
  69 check_product()
  70 {
  71         grep -q "$1" /sys/class/dmi/id/uevent
  72 }
  73
  74 detect_hardware()
  75 {
  76         check_product ASUSTeK && get_asus_info
  77         check_product VirtualBox && get_vbox_info
  78         check_product QEMU && get_qemu_info
  79         check_product VMware && get_vmware_info
  80 }
  81
  82 load_modules()
  83 {
  84         detect_hardware
  85         for m in $PREDEV; do
  86                 modprobe $m
  87         done
  88         [ -n "$FB0DEV" ] && modprobe $FB0DEV
  89         [ -n "$LANDEV" ] && modprobe $LANDEV
  90         [ -n "$WIFDEV" ] && modprobe $WIFDEV
  91         [ -n "$SNDDEV" ] && modprobe $SNDDEV
  92         [ -n "$CAMDEV" ] && modprobe $CAMDEV
  93 }