Add VHT80/VHT160 support for IBSS.
Drivers could activate this feature by
setting NL80211_FEATURE_VHT_IBSS flag.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@xxxxxxxxx>
---
net/mac80211/ibss.c | 11 +++++++++++
net/mac80211/ieee80211_i.h | 2 ++
net/mac80211/util.c | 35 +++++++++++++++++++++++++++++++++++
3 files changed, 48 insertions(+)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 13b8105..1ffcfab 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -188,6 +188,15 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
*/
pos = ieee80211_ie_build_ht_oper(pos, &sband->ht_cap,
chandef, 0);
+
+ if (chandef->width != NL80211_CHAN_WIDTH_20 &&
+ chandef->width != NL80211_CHAN_WIDTH_40 &&
+ sband->vht_cap.vht_supported) {
+ pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap,
+ sband->vht_cap.cap);
+ pos = ieee80211_ie_build_vht_oper(pos, &sband->vht_cap,
+ chandef);
+ }
}
if (local->hw.queues >= IEEE80211_NUM_ACS)
@@ -411,6 +420,8 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
cfg80211_chandef_create(&chandef, cbss->channel, chan_type);
break;
case NL80211_CHAN_WIDTH_40:
+ case NL80211_CHAN_WIDTH_80:
+ case NL80211_CHAN_WIDTH_160:
cfg80211_chandef_create(&chandef, cbss->channel,
NL80211_CHAN_WIDTH_20_NOHT);
chandef.width = sdata->u.ibss.chandef.width;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 156ea79..95ce152 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1935,6 +1935,8 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
u16 prot_mode);
u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
u32 cap);
+u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
+ const struct cfg80211_chan_def *chandef);
int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
const struct ieee80211_supported_band *sband,
const u8 *srates, int srates_len, u32 *rates);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 83ba6cd..ee6a601 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2329,6 +2329,41 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
return pos + sizeof(struct ieee80211_ht_operation);
}
+u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
+ const struct cfg80211_chan_def *chandef)
+{
+ struct ieee80211_vht_operation *vht_oper;
+
+ /* Build VHT Operation */
+ *pos++ = WLAN_EID_VHT_OPERATION;
+ *pos++ = sizeof(struct ieee80211_vht_operation);
+
+ vht_oper = (struct ieee80211_vht_operation *)pos;
+
+ vht_oper->center_freq_seg1_idx =
+ ieee80211_frequency_to_channel(chandef->center_freq1);
+ vht_oper->center_freq_seg2_idx = 0;
+ vht_oper->basic_mcs_set = vht_cap->vht_mcs.rx_mcs_map;
+
+ switch (chandef->width) {
+ case NL80211_CHAN_WIDTH_80:
+ vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
+ break;
+ case NL80211_CHAN_WIDTH_80P80:
+ vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
+ vht_oper->center_freq_seg2_idx =
+ ieee80211_frequency_to_channel(chandef->center_freq2);
+ break;
+ case NL80211_CHAN_WIDTH_160:
+ vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
+ break;
+ default:
+ return pos;
+ }
+
+ return pos + sizeof(struct ieee80211_vht_operation);
+}
+
void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
const struct ieee80211_ht_operation *ht_oper,
struct cfg80211_chan_def *chandef)
--
1.9.1
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