38587f87ed
This patch introduces 802.11ac support to mac80211 and hostapd. The split of VHT160 in two 80 MHz bands is not yet supported, since it requires an additional user supplied parameter for the channel of the second band. Signed-off-by: Matti Laakso <malaakso@elisanet.fi> Signed-off-by: Simon Wunderlich <simon@open-mesh.com> [sven@open-mesh.com: Rebased patch, merged htmode and vhtmode, removed special hwmode, replaced uci vht_capab list with overwritable autoconfig, fixed hostapd integration, fixed commit description, add HT40+/- for VHT modes, add VHT40 center_freq autoconfig, refactored major parts] Signed-off-by: Sven Eckelmann <sven@open-mesh.com> SVN-Revision: 39456
134 lines
3.3 KiB
Bash
134 lines
3.3 KiB
Bash
#!/bin/sh
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append DRIVERS "mac80211"
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lookup_phy() {
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[ -n "$phy" ] && {
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[ -d /sys/class/ieee80211/$phy ] && return
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}
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local devpath
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config_get devpath "$device" path
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[ -n "$devpath" -a -d "/sys/devices/$devpath/ieee80211" ] && {
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phy="$(ls /sys/devices/$devpath/ieee80211 | grep -m 1 phy)"
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[ -n "$phy" ] && return
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}
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local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
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[ -n "$macaddr" ] && {
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for _phy in $(ls /sys/class/ieee80211 2>/dev/null); do
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[ "$macaddr" = "$(cat /sys/class/ieee80211/${_phy}/macaddress)" ] || continue
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phy="$_phy"
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return
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done
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}
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phy=
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return
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}
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find_mac80211_phy() {
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local device="$1"
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config_get phy "$device" phy
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lookup_phy
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[ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
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echo "PHY for wifi device $1 not found"
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return 1
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}
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config_set "$device" phy "$phy"
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config_get macaddr "$device" macaddr
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[ -z "$macaddr" ] && {
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config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
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}
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return 0
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}
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check_mac80211_device() {
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config_get phy "$1" phy
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[ -z "$phy" ] && {
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find_mac80211_phy "$1" >/dev/null || return 0
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config_get phy "$1" phy
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}
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[ "$phy" = "$dev" ] && found=1
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}
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detect_mac80211() {
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devidx=0
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config_load wireless
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while :; do
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config_get type "radio$devidx" type
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[ -n "$type" ] || break
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devidx=$(($devidx + 1))
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done
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for dev in $(ls /sys/class/ieee80211); do
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found=0
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config_foreach check_mac80211_device wifi-device
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[ "$found" -gt 0 ] && continue
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mode_11n=""
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mode_band="g"
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channel="11"
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htmode=""
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ht_cap=0
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for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do
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ht_cap="$(($ht_cap | $cap))"
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done
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ht_capab="";
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[ "$ht_cap" -gt 0 ] && {
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mode_11n="n"
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htmode="HT20"
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list=" list ht_capab"
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[ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list LDPC" "$N"
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[ "$(($ht_cap & 16))" -eq 16 ] && append ht_capab "$list GF" "$N"
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[ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list SHORT-GI-20" "$N"
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[ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list SHORT-GI-40" "$N"
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[ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list TX-STBC" "$N"
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[ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list RX-STBC1" "$N"
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[ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list RX-STBC12" "$N"
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[ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list RX-STBC123" "$N"
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[ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list DSSS_CCK-40" "$N"
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}
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iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
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vht_cap=$(iw phy "$dev" info | grep -c 'VHT Capabilities')
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[ "$vht_cap" -gt 0 ] && {
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mode_band="a";
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channel="36"
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htmode="VHT80"
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}
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[ -n $htmode ] && append ht_capab " option htmode $htmode" "$N"
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if [ -x /usr/bin/readlink ]; then
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path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
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path="${path##/sys/devices/}"
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dev_id=" option path '$path'"
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else
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dev_id=" option macaddr $(cat /sys/class/ieee80211/${dev}/macaddress)"
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fi
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cat <<EOF
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config wifi-device radio$devidx
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option type mac80211
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option channel ${channel}
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option hwmode 11${mode_11n}${mode_band}
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$dev_id
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$ht_capab
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# REMOVE THIS LINE TO ENABLE WIFI:
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option disabled 1
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config wifi-iface
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option device radio$devidx
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option network lan
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option mode ap
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option ssid OpenWrt
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option encryption none
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EOF
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devidx=$(($devidx + 1))
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done
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}
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