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