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mac80211: clean up ht capability handling, drop the use of the ht_capab list, use individual variables instead

Browse source 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 40682
This commit is contained in:
Felix Fietkau 2014-05-03 18:38:20 +00:00
parent 52846f0ff5
commit 58bda3a0e1
2 changed files with 52 additions and 25 deletions
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56
package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
View file

@ -56,6 +56,25 @@ drv_mac80211_init_iface_config() {
config_add_string $MP_CONFIG_STRING
}
mac80211_add_capabilities() {
local __var="$1"; shift
local __mask="$1"; shift
local __out= oifs
oifs="$IFS"
IFS=:
for capab in "$@"; do
set -- $capab
[ "$(($4))" -gt 0 ] || continue
[ "$(($__mask & $2))" -eq "$((${3:-$2}))" ] || continue
__out="$__out[$1]"
done
IFS="$oifs"
export -n -- "$__var=$__out"
}
mac80211_hostapd_setup_base() {
local phy="$1"
@ -80,13 +99,40 @@ mac80211_hostapd_setup_base() {
*) ieee80211n= ;;
esac
[ -n "$ieee80211n" ] && append base_cfg "ieee80211n=1" "$N"
[ -n "$ieee80211n" ] && {
append base_cfg "ieee80211n=1" "$N"
for cap in $ht_capab_list; do
ht_capab="$ht_capab[$cap]"
done
json_get_vars \
ldpc:1 \
greenfield:1 \
short_gi_20:1 \
short_gi_40:1 \
tx_stbc:1 \
rx_stbc:3 \
dsss_cck_40:1
[ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
ht_cap_mask=0
for cap in $(iw phy "$phy" info | grep 'Capabilities:' | cut -d: -f2); do
ht_cap_mask="$(($ht_cap_mask | $cap))"
done
cap_rx_stbc=$((($ht_cap_mask >> 8) & 3))
[ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
ht_cap_mask="$(( ($ht_cap_mask & ~(0x300)) | ($cap_rx_stbc << 8) ))"
mac80211_add_capabilities ht_capab_flags $ht_cap_mask \
LDPC:0x1::$ldpc \
GF:0x10::$greenfield \
SHORT-GI-20:0x20::$short_gi_20 \
SHORT-GI-40:0x40::$short_gi_40 \
TX-STBC:0x80::$max_tx_stbc \
RX-STBC1:0x300:0x100:1 \
RX-STBC12:0x300:0x200:1 \
RX-STBC123:0x300:0x300:1 \
DSSS_CCK-40:0x1000::$dsss_cck_40
[ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab$ht_capab_flags" "$N"
}
# 802.11ac
enable_ac=0

21
package/kernel/mac80211/files/lib/wifi/mac80211.sh
View file

@ -71,26 +71,7 @@ detect_mac80211() {
channel="11"
htmode=""
ht_cap=0
for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do
ht_cap="$(($ht_cap | $cap))"
done
ht_capab="";
[ "$ht_cap" -gt 0 ] && {
mode_11n="n"
htmode="HT20"
list=" list ht_capab"
[ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list LDPC" "$N"
[ "$(($ht_cap & 16))" -eq 16 ] && append ht_capab "$list GF" "$N"
[ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list SHORT-GI-20" "$N"
[ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list SHORT-GI-40" "$N"
[ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list TX-STBC" "$N"
[ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list RX-STBC1" "$N"
[ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list RX-STBC12" "$N"
[ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list RX-STBC123" "$N"
[ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list DSSS_CCK-40" "$N"
}
iw phy "$dev" info | grep -q 'Capabilities:' && htmode=HT20
iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
vht_cap=$(iw phy "$dev" info | grep -c 'VHT Capabilities')