From 97f5f4254a61d7a104b5e609a6a0d9a10c73d29e Mon Sep 17 00:00:00 2001 From: "tamizhr@codeaurora.org" Date: Tue, 27 Mar 2018 19:16:17 +0530 Subject: mac80211: Use proper chan_width enum in sta opmode event Bandwidth change value reported via nl80211 contains mac80211 specific enum value(ieee80211_sta_rx_bw) and which is not understand by userspace application. Map the mac80211 specific value to nl80211_chan_width enum value to avoid using wrong value in the userspace application. And used station's ht/vht capability to map IEEE80211_STA_RX_BW_20 and IEEE80211_STA_RX_BW_160 with proper nl80211 value. Signed-off-by: Tamizh chelvam Signed-off-by: Johannes Berg --- net/mac80211/vht.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) (limited to 'net/mac80211/vht.c') diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 5714dee76b12..259325cbcc31 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -358,6 +358,36 @@ enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta) return NL80211_CHAN_WIDTH_80; } +enum nl80211_chan_width +ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta) +{ + enum ieee80211_sta_rx_bandwidth cur_bw = sta->sta.bandwidth; + struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap; + u32 cap_width; + + switch (cur_bw) { + case IEEE80211_STA_RX_BW_20: + if (!sta->sta.ht_cap.ht_supported) + return NL80211_CHAN_WIDTH_20_NOHT; + else + return NL80211_CHAN_WIDTH_20; + case IEEE80211_STA_RX_BW_40: + return NL80211_CHAN_WIDTH_40; + case IEEE80211_STA_RX_BW_80: + return NL80211_CHAN_WIDTH_80; + case IEEE80211_STA_RX_BW_160: + cap_width = + vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; + + if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ) + return NL80211_CHAN_WIDTH_160; + + return NL80211_CHAN_WIDTH_80P80; + default: + return NL80211_CHAN_WIDTH_20; + } +} + enum ieee80211_sta_rx_bandwidth ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width) { @@ -484,7 +514,7 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, new_bw = ieee80211_sta_cur_vht_bw(sta); if (new_bw != sta->sta.bandwidth) { sta->sta.bandwidth = new_bw; - sta_opmode.bw = new_bw; + sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(sta); changed |= IEEE80211_RC_BW_CHANGED; sta_opmode.changed |= STA_OPMODE_MAX_BW_CHANGED; } -- cgit v1.2.3