[openwrt/openwrt] mac80211: add preliminary support for enabling 802.11ax in config

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/acf17334966c0e405011ca898068a3170eba658f

commit acf17334966c0e405011ca898068a3170eba658f
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Aug 26 12:30:12 2020 +0200

    mac80211: add preliminary support for enabling 802.11ax in config
    
    No advanced features are configurable yet, just basic enabling of HE modes
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 .../mac80211/files/lib/netifd/wireless/mac80211.sh | 49 ++++++++++++++++------
 1 file changed, 37 insertions(+), 12 deletions(-)

diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index 823c68170a..17095b7205 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -121,8 +121,8 @@ mac80211_hostapd_setup_base() {
 	ieee80211n=1
 	ht_capab=
 	case "$htmode" in
-		VHT20|HT20) ;;
-		HT40*|VHT40|VHT80|VHT160)
+		VHT20|HT20|HE20) ;;
+		HT40*|VHT40|VHT80|VHT160|HE40|HE80|HE160)
 			case "$hwmode" in
 				a)
 					case "$(( ($channel / 4) % 2 ))" in
@@ -192,19 +192,21 @@ mac80211_hostapd_setup_base() {
 
 	# 802.11ac
 	enable_ac=0
+	vht_oper_chwidth=0
+	vht_center_seg0=
+
 	idx="$channel"
 	case "$htmode" in
-		VHT20) enable_ac=1;;
-		VHT40)
+		VHT20|HE20) enable_ac=1;;
+		VHT40|HE40)
 			case "$(( ($channel / 4) % 2 ))" in
 				1) idx=$(($channel + 2));;
 				0) idx=$(($channel - 2));;
 			esac
 			enable_ac=1
-			append base_cfg "vht_oper_chwidth=0" "$N"
-			append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
+			vht_center_seg0=$idx
 		;;
-		VHT80)
+		VHT80|HE80)
 			case "$(( ($channel / 4) % 4 ))" in
 				1) idx=$(($channel + 6));;
 				2) idx=$(($channel + 2));;
@@ -212,19 +214,20 @@ mac80211_hostapd_setup_base() {
 				0) idx=$(($channel - 6));;
 			esac
 			enable_ac=1
-			append base_cfg "vht_oper_chwidth=1" "$N"
-			append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
+			vht_oper_chwidth=1
+			vht_center_seg0=$idx
 		;;
-		VHT160)
+		VHT160|HE160)
 			case "$channel" in
 				36|40|44|48|52|56|60|64) idx=50;;
 				100|104|108|112|116|120|124|128) idx=114;;
 			esac
 			enable_ac=1
-			append base_cfg "vht_oper_chwidth=2" "$N"
-			append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
+			vht_oper_chwidth=2
+			vht_center_seg0=$idx
 		;;
 	esac
+	[ "$hwmode" = "a" ] || enable_ac=0
 
 	if [ "$enable_ac" != "0" ]; then
 		json_get_vars \
@@ -253,6 +256,9 @@ mac80211_hostapd_setup_base() {
 			vht_cap="$(($vht_cap | $cap))"
 		done
 
+		append base_cfg "vht_oper_chwidth=$vht_oper_chwidth" "$N"
+		append base_cfg "vht_oper_centr_freq_seg0_idx=$vht_center_seg0" "$N"
+
 		cap_rx_stbc=$((($vht_cap >> 8) & 7))
 		[ "$rx_stbc" -lt "$cap_rx_stbc" ] && cap_rx_stbc="$rx_stbc"
 		vht_cap="$(( ($vht_cap & ~(0x700)) | ($cap_rx_stbc << 8) ))"
@@ -323,6 +329,25 @@ mac80211_hostapd_setup_base() {
 		[ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
 	fi
 
+	# 802.11ax
+	enable_ax=0
+	case "$htmode" in
+		HE*) enable_ax=1 ;;
+	esac
+
+	if [ "$enable_ax" != "0" ]; then
+		append base_cfg "ieee80211ax=1" "$N"
+		[ "$hwmode" = "a" ] && {
+			append base_cfg "he_oper_chwidth=$vht_oper_chwidth" "$N"
+			append base_cfg "he_oper_centr_freq_seg0_idx=$vht_center_seg0" "$N"
+		}
+		append base_cfg "he_default_pe_duration=4" "$N"
+		append base_cfg "he_rts_threshold=1023" "$N"
+		append base_cfg "he_su_beamformer=1" "$N"
+		append base_cfg "he_su_beamformee=1" "$N"
+		append base_cfg "he_mu_beamformer=1023" "$N"
+	fi
+
 	hostapd_prepare_device_config "$hostapd_conf_file" nl80211
 	cat >> "$hostapd_conf_file" <<EOF
 ${channel:+channel=$channel}