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 /sys/class/ieee80211/*; do
  23                         [ -e "$_phy" ] || continue
  24
  25                         [ "$macaddr" = "$(cat ${_phy}/macaddress)" ] || continue
  26                         phy="${_phy##*/}"
  27                         return
  28                 done
  29         }
  30         phy=
  31         return
  32 }
  33
  34 find_mac80211_phy() {
  35         local device="$1"
  36
  37         config_get phy "$device" phy
  38         lookup_phy
  39         [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
  40                 echo "PHY for wifi device $1 not found"
  41                 return 1
  42         }
  43         config_set "$device" phy "$phy"
  44
  45         config_get macaddr "$device" macaddr
  46         [ -z "$macaddr" ] && {
  47                 config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
  48         }
  49
  50         return 0
  51 }
  52
  53 check_mac80211_device() {
  54         config_get phy "$1" phy
  55         [ -z "$phy" ] && {
  56                 find_mac80211_phy "$1" >/dev/null || return 0
  57                 config_get phy "$1" phy
  58         }
  59         [ "$phy" = "$dev" ] && found=1
  60 }
  61
  62 detect_mac80211() {
  63         devidx=0
  64         config_load wireless
  65         while :; do
  66                 config_get type "radio$devidx" type
  67                 [ -n "$type" ] || break
  68                 devidx=$(($devidx + 1))
  69         done
  70
  71         for _dev in /sys/class/ieee80211/*; do
  72                 [ -e "$_dev" ] || continue
  73
  74                 dev="${_dev##*/}"
  75
  76                 found=0
  77                 config_foreach check_mac80211_device wifi-device
  78                 [ "$found" -gt 0 ] && continue
  79
  80                 mode_band="g"
  81                 channel="11"
  82                 htmode=""
  83                 ht_capab=""
  84
  85                 iw phy "$dev" info | grep -q 'Capabilities:' && htmode=HT20
  86                 iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
  87
  88                 vht_cap=$(iw phy "$dev" info | grep -c 'VHT Capabilities')
  89                 cap_5ghz=$(iw phy "$dev" info | grep -c "Band 2")
  90                 [ "$vht_cap" -gt 0 -a "$cap_5ghz" -gt 0 ] && {
  91                         mode_band="a";
  92                         channel="36"
  93                         htmode="VHT80"
  94                 }
  95
  96                 [ -n $htmode ] && append ht_capab "     option htmode   $htmode" "$N"
  97
  98                 if [ -x /usr/bin/readlink -a -h /sys/class/ieee80211/${dev} ]; then
  99                         path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
 100                 else
 101                         path=""
 102                 fi
 103                 if [ -n "$path" ]; then
 104                         path="${path##/sys/devices/}"
 105                         dev_id="        option path     '$path'"
 106                 else
 107                         dev_id="        option macaddr  $(cat /sys/class/ieee80211/${dev}/macaddress)"
 108                 fi
 109
 110                 cat <<EOF
 111 config wifi-device  radio$devidx
 112         option type     mac80211
 113         option channel  ${channel}
 114         option hwmode   11${mode_band}
 115 $dev_id
 116 $ht_capab
 117         # REMOVE THIS LINE TO ENABLE WIFI:
 118         option disabled 1
 119
 120 config wifi-iface
 121         option device   radio$devidx
 122         option network  lan
 123         option mode     ap
 124         option ssid     OpenWrt
 125         option encryption none
 126
 127 EOF
 128         devidx=$(($devidx + 1))
 129         done
 130 }
 131