openwrtv3/package/kernel/mac80211/files/lib/wifi/mac80211.sh
Leon M. George 3a6c3c9c1c mac80211: join 5GHz checks
Before this commit, devices supporting both 2.4GHz and 5GHz would be
configured for 2.4GHz by default - unless they have VHT capabilities.

With this commit, channel 36 is only set when the frequency is supported.
VHT isn't checked unless that is the case.

Signed-off-by: Leon M. George <leon@georgemail.eu>
2018-04-19 14:40:26 +02:00

129 lines
2.9 KiB
Bash

#!/bin/sh
append DRIVERS "mac80211"
lookup_phy() {
[ -n "$phy" ] && {
[ -d /sys/class/ieee80211/$phy ] && return
}
local devpath
config_get devpath "$device" path
[ -n "$devpath" ] && {
for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
case "$(readlink -f /sys/class/ieee80211/$phy/device)" in
*$devpath) return;;
esac
done
}
local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
[ -n "$macaddr" ] && {
for _phy in /sys/class/ieee80211/*; do
[ -e "$_phy" ] || continue
[ "$macaddr" = "$(cat ${_phy}/macaddress)" ] || continue
phy="${_phy##*/}"
return
done
}
phy=
return
}
find_mac80211_phy() {
local device="$1"
config_get phy "$device" phy
lookup_phy
[ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
echo "PHY for wifi device $1 not found"
return 1
}
config_set "$device" phy "$phy"
config_get macaddr "$device" macaddr
[ -z "$macaddr" ] && {
config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
}
return 0
}
check_mac80211_device() {
config_get phy "$1" phy
[ -z "$phy" ] && {
find_mac80211_phy "$1" >/dev/null || return 0
config_get phy "$1" phy
}
[ "$phy" = "$dev" ] && found=1
}
detect_mac80211() {
devidx=0
config_load wireless
while :; do
config_get type "radio$devidx" type
[ -n "$type" ] || break
devidx=$(($devidx + 1))
done
for _dev in /sys/class/ieee80211/*; do
[ -e "$_dev" ] || continue
dev="${_dev##*/}"
found=0
config_foreach check_mac80211_device wifi-device
[ "$found" -gt 0 ] && continue
mode_band="g"
channel="11"
htmode=""
ht_capab=""
iw phy "$dev" info | grep -q 'Capabilities:' && htmode=HT20
iw phy "$dev" info | grep -q '5180 MHz' && {
mode_band="a"
channel="36"
iw phy "$dev" info | grep -q 'VHT Capabilities' && htmode="VHT80"
}
[ -n "$htmode" ] && ht_capab="set wireless.radio${devidx}.htmode=$htmode"
if [ -x /usr/bin/readlink -a -h /sys/class/ieee80211/${dev} ]; then
path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
else
path=""
fi
if [ -n "$path" ]; then
path="${path##/sys/devices/}"
case "$path" in
platform*/pci*) path="${path##platform/}";;
esac
dev_id="set wireless.radio${devidx}.path='$path'"
else
dev_id="set wireless.radio${devidx}.macaddr=$(cat /sys/class/ieee80211/${dev}/macaddress)"
fi
uci -q batch <<-EOF
set wireless.radio${devidx}=wifi-device
set wireless.radio${devidx}.type=mac80211
set wireless.radio${devidx}.channel=${channel}
set wireless.radio${devidx}.hwmode=11${mode_band}
${dev_id}
${ht_capab}
set wireless.radio${devidx}.disabled=1
set wireless.default_radio${devidx}=wifi-iface
set wireless.default_radio${devidx}.device=radio${devidx}
set wireless.default_radio${devidx}.network=lan
set wireless.default_radio${devidx}.mode=ap
set wireless.default_radio${devidx}.ssid=OpenWrt
set wireless.default_radio${devidx}.encryption=none
EOF
uci -q commit wireless
devidx=$(($devidx + 1))
done
}