mac80211: pass P2P powersave parameters to driver
While connected to a GO, parse the P2P NoA attribute
and pass the CT Window and opportunistic powersave
parameters to the driver.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index d272e0c..e1fb97c 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -473,6 +473,8 @@
u8 use_4addr;
+ u8 p2p_noa_index;
+
/* Signal strength from the last Beacon frame in the current BSS. */
int last_beacon_signal;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 02ffe87..6161446 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1365,6 +1365,22 @@
sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE;
+ if (sdata->vif.p2p) {
+ u8 noa[2];
+ int ret;
+
+ ret = cfg80211_get_p2p_attr(cbss->information_elements,
+ cbss->len_information_elements,
+ IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
+ noa, sizeof(noa));
+ if (ret >= 2) {
+ bss_conf->p2p_oppps = noa[1] & 0x80;
+ bss_conf->p2p_ctwindow = noa[1] & 0x7f;
+ bss_info_changed |= BSS_CHANGED_P2P_PS;
+ sdata->u.mgd.p2p_noa_index = noa[0];
+ }
+ }
+
/* just to be sure */
ieee80211_stop_poll(sdata);
@@ -1487,6 +1503,9 @@
changed |= BSS_CHANGED_ASSOC;
sdata->vif.bss_conf.assoc = false;
+ sdata->vif.bss_conf.p2p_ctwindow = 0;
+ sdata->vif.bss_conf.p2p_oppps = false;
+
/* on the next assoc, re-program HT parameters */
memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
@@ -2594,6 +2613,27 @@
}
}
+ if (sdata->vif.p2p) {
+ u8 noa[2];
+ int ret;
+
+ ret = cfg80211_get_p2p_attr(mgmt->u.beacon.variable,
+ len - baselen,
+ IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
+ noa, sizeof(noa));
+ if (ret >= 2 && sdata->u.mgd.p2p_noa_index != noa[0]) {
+ bss_conf->p2p_oppps = noa[1] & 0x80;
+ bss_conf->p2p_ctwindow = noa[1] & 0x7f;
+ changed |= BSS_CHANGED_P2P_PS;
+ sdata->u.mgd.p2p_noa_index = noa[0];
+ /*
+ * make sure we update all information, the CRC
+ * mechanism doesn't look at P2P attributes.
+ */
+ ifmgd->beacon_crc_valid = false;
+ }
+ }
+
if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
return;
ifmgd->beacon_crc = ncrc;
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index eeebbd9..7794e53 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -343,6 +343,8 @@
__dynamic_array(u8, ssid, info->ssid_len);
__field(bool, hidden_ssid);
__field(int, txpower)
+ __field(u8, p2p_ctwindow)
+ __field(bool, p2p_oppps)
),
TP_fast_assign(
@@ -378,6 +380,8 @@
memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
__entry->hidden_ssid = info->hidden_ssid;
__entry->txpower = info->txpower;
+ __entry->p2p_ctwindow = info->p2p_ctwindow;
+ __entry->p2p_oppps = info->p2p_oppps;
),
TP_printk(