package/kernel/mac80211/files/lib/wifi/mac80211.sh

   1 #!/bin/sh
   2 append DRIVERS "mac80211"
   3
   4 lookup_phy() {
   5         [ -n "$phy" ] && {
   6                 [ -d /sys/class/ieee80211/$phy ] && return
   7         }
   8
   9         local devpath
  10         config_get devpath "$device" path
  11         [ -n "$devpath" ] && {
  12                 for _phy in /sys/devices/$devpath/ieee80211/phy*; do
  13                         case "$(readlink -f /sys/class/ieee80211/$_phy/device)" in
  14                                 *$devpath) return 0;;
  15                         esac
  16                 done
  17         }
  18
  19         local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
  20         [ -n "$macaddr" ] && {
  21                 for _phy in /sys/class/ieee80211/*; do
  22                         [ -e "$_phy" ] || continue
  23
  24                         [ "$macaddr" = "$(cat ${_phy}/macaddress)" ] || continue
  25                         phy="${_phy##*/}"
  26                         return
  27                 done
  28         }
  29         phy=
  30         return
  31 }
  32
  33 find_mac80211_phy() {
  34         local device="$1"
  35
  36         config_get phy "$device" phy
  37         lookup_phy
  38         [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
  39                 echo "PHY for wifi device $1 not found"
  40                 return 1
  41         }
  42         config_set "$device" phy "$phy"
  43
  44         config_get macaddr "$device" macaddr
  45         [ -z "$macaddr" ] && {
  46                 config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
  47         }
  48
  49         return 0
  50 }
  51
  52 check_mac80211_device() {
  53         config_get phy "$1" phy
  54         [ -z "$phy" ] && {
  55                 find_mac80211_phy "$1" >/dev/null || return 0
  56                 config_get phy "$1" phy
  57         }
  58         [ "$phy" = "$dev" ] && found=1
  59 }
  60
  61 detect_mac80211() {
  62         devidx=0
  63         config_load wireless
  64         while :; do
  65                 config_get type "radio$devidx" type
  66                 [ -n "$type" ] || break
  67                 devidx=$(($devidx + 1))
  68         done
  69
  70         for _dev in /sys/class/ieee80211/*; do
  71                 [ -e "$_dev" ] || continue
  72
  73                 dev="${_dev##*/}"
  74
  75                 found=0
  76                 config_foreach check_mac80211_device wifi-device
  77                 [ "$found" -gt 0 ] && continue
  78
  79                 mode_band="g"
  80                 channel="11"
  81                 htmode=""
  82                 ht_capab=""
  83
  84                 iw phy "$dev" info | grep -q 'Capabilities:' && htmode=HT20
  85                 iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
  86
  87                 vht_cap=$(iw phy "$dev" info | grep -c 'VHT Capabilities')
  88                 cap_5ghz=$(iw phy "$dev" info | grep -c "Band 2")
  89                 [ "$vht_cap" -gt 0 -a "$cap_5ghz" -gt 0 ] && {
  90                         mode_band="a";
  91                         channel="36"
  92                         htmode="VHT80"
  93                 }
  94
  95                 [ -n $htmode ] && append ht_capab "     option htmode   $htmode" "$N"
  96
  97                 if [ -x /usr/bin/readlink -a -h /sys/class/ieee80211/${dev} ]; then
  98                         path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
  99                 else
 100                         path=""
 101                 fi
 102                 if [ -n "$path" ]; then
 103                         path="${path##/sys/devices/}"
 104                         dev_id="        option path     '$path'"
 105                 else
 106                         dev_id="        option macaddr  $(cat /sys/class/ieee80211/${dev}/macaddress)"
 107                 fi
 108
 109                 cat <<EOF
 110 config wifi-device  radio$devidx
 111         option type     mac80211
 112         option channel  ${channel}
 113         option hwmode   11${mode_band}
 114 $dev_id
 115 $ht_capab
 116         # REMOVE THIS LINE TO ENABLE WIFI:
 117         option disabled 1
 118
 119 config wifi-iface
 120         option device   radio$devidx
 121         option network  lan
 122         option mode     ap
 123         option ssid     OpenWrt
 124         option encryption none
 125
 126 EOF
 127         devidx=$(($devidx + 1))
 128         done
 129 }
 130