From e2c4998f6dca7d9b74a8b01762040ff2c5e38fd7 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 22 Nov 2021 13:04:03 +0100 Subject: [PATCH] mac80211: set beamformer/beamformee number of antennas in VHT caps Without this, beamforming is probably not working Signed-off-by: Felix Fietkau --- .../files/lib/netifd/wireless/mac80211.sh | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh index a958773b45..27eecf3a7f 100644 --- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh +++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh @@ -52,6 +52,8 @@ drv_mac80211_init_device_config() { he_spr_sr_control \ he_twt_required config_add_int \ + beamformer_antennas \ + beamformee_antennas \ vht_max_a_mpdu_len_exp \ vht_max_mpdu \ vht_link_adapt \ @@ -293,6 +295,8 @@ mac80211_hostapd_setup_base() { mu_beamformee:1 \ vht_txop_ps:1 \ htc_vht:1 \ + beamformee_antennas:4 \ + beamformer_antennas:4 \ rx_antenna_pattern:1 \ tx_antenna_pattern:1 \ vht_max_a_mpdu_len_exp:7 \ @@ -333,6 +337,18 @@ mac80211_hostapd_setup_base() { RX-STBC-123:0x700:0x300:1 \ RX-STBC-1234:0x700:0x400:1 \ + [ "$(($vht_cap & 0x800))" -gt 0 -a "$su_beamformer" -gt 0 ] && { + cap_ant="$(( ( ($vht_cap >> 16) & 3 ) + 1 ))" + [ "$cap_ant" -gt "$beamformer_antennas" ] && cap_ant="$beamformer_antennas" + [ "$cap_ant" -gt 1 ] && vht_capab="$vht_capab[SOUNDING-DIMENSION-$cap_ant]" + } + + [ "$(($vht_cap & 0x1000))" -gt 0 -a "$su_beamformee" -gt 0 ] && { + cap_ant="$(( ( ($vht_cap >> 13) & 3 ) + 1 ))" + [ "$cap_ant" -gt "$beamformee_antennas" ] && cap_ant="$beamformee_antennas" + [ "$cap_ant" -gt 1 ] && vht_capab="$vht_capab[BF-ANTENNA-$cap_ant]" + } + # supported Channel widths vht160_hw=0 [ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \ -- 2.30.2