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" -a -d "/sys/devices/$devpath/ieee80211" ] && {
  12                 phy="$(ls /sys/devices/$devpath/ieee80211 | grep -m 1 phy)"
  13                 [ -n "$phy" ] && return
  14         }
  15
  16         local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
  17         [ -n "$macaddr" ] && {
  18                 for _phy in $(ls /sys/class/ieee80211 2>/dev/null); do
  19                         [ "$macaddr" = "$(cat /sys/class/ieee80211/${_phy}/macaddress)" ] || continue
  20                         phy="$_phy"
  21                         return
  22                 done
  23         }
  24         phy=
  25         return
  26 }
  27
  28 find_mac80211_phy() {
  29         local device="$1"
  30
  31         config_get phy "$device" phy
  32         lookup_phy
  33         [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
  34                 echo "PHY for wifi device $1 not found"
  35                 return 1
  36         }
  37         config_set "$device" phy "$phy"
  38
  39         config_get macaddr "$device" macaddr
  40         [ -z "$macaddr" ] && {
  41                 config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
  42         }
  43
  44         return 0
  45 }
  46
  47 check_mac80211_device() {
  48         config_get phy "$1" phy
  49         [ -z "$phy" ] && {
  50                 find_mac80211_phy "$1" >/dev/null || return 0
  51                 config_get phy "$1" phy
  52         }
  53         [ "$phy" = "$dev" ] && found=1
  54 }
  55
  56 detect_mac80211() {
  57         devidx=0
  58         config_load wireless
  59         while :; do
  60                 config_get type "radio$devidx" type
  61                 [ -n "$type" ] || break
  62                 devidx=$(($devidx + 1))
  63         done
  64         for dev in $(ls /sys/class/ieee80211); do
  65                 found=0
  66                 config_foreach check_mac80211_device wifi-device
  67                 [ "$found" -gt 0 ] && continue
  68
  69                 mode_11n=""
  70                 mode_band="g"
  71                 channel="11"
  72                 htmode=""
  73
  74                 ht_cap=0
  75                 for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do
  76                         ht_cap="$(($ht_cap | $cap))"
  77                 done
  78                 ht_capab="";
  79                 [ "$ht_cap" -gt 0 ] && {
  80                         mode_11n="n"
  81                         htmode="HT20"
  82
  83                         list="  list ht_capab"
  84                         [ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list  LDPC" "$N"
  85                         [ "$(($ht_cap & 16))" -eq 16 ] && append ht_capab "$list        GF" "$N"
  86                         [ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list        SHORT-GI-20" "$N"
  87                         [ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list        SHORT-GI-40" "$N"
  88                         [ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list      TX-STBC" "$N"
  89                         [ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list      RX-STBC1" "$N"
  90                         [ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list      RX-STBC12" "$N"
  91                         [ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list      RX-STBC123" "$N"
  92                         [ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list    DSSS_CCK-40" "$N"
  93                 }
  94                 iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
  95
  96                 vht_cap=$(iw phy "$dev" info | grep -c 'VHT Capabilities')
  97                 [ "$vht_cap" -gt 0 ] && {
  98                         mode_band="a";
  99                         channel="36"
 100                         htmode="VHT80"
 101                 }
 102
 103                 [ -n $htmode ] && append ht_capab "     option htmode   $htmode" "$N"
 104
 105                 if [ -x /usr/bin/readlink ]; then
 106                         path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
 107                         path="${path##/sys/devices/}"
 108                         dev_id="        option path     '$path'"
 109                 else
 110                         dev_id="        option macaddr  $(cat /sys/class/ieee80211/${dev}/macaddress)"
 111                 fi
 112
 113                 cat <<EOF
 114 config wifi-device  radio$devidx
 115         option type     mac80211
 116         option channel  ${channel}
 117         option hwmode   11${mode_11n}${mode_band}
 118 $dev_id
 119 $ht_capab
 120         # REMOVE THIS LINE TO ENABLE WIFI:
 121         option disabled 1
 122
 123 config wifi-iface
 124         option device   radio$devidx
 125         option network  lan
 126         option mode     ap
 127         option ssid     OpenWrt
 128         option encryption none
 129
 130 EOF
 131         devidx=$(($devidx + 1))
 132         done
 133 }
 134