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>

include/net/mac80211.h

@@ -208,6 +208,8 @@ struct ieee80211_chanctx_conf {
  * @BSS_CHANGED_AP_PROBE_RESP: Probe Response changed for this BSS (AP mode)
  * @BSS_CHANGED_PS: PS changed for this BSS (STA mode)
  * @BSS_CHANGED_TXPOWER: TX power setting changed for this interface
+ * @BSS_CHANGED_P2P_PS: P2P powersave settings (CTWindow, opportunistic PS)
+ *	changed (currently only in P2P client mode, GO mode will be later)
  */
 enum ieee80211_bss_change {
 	BSS_CHANGED_ASSOC		= 1<<0,
@@ -229,6 +231,7 @@ enum ieee80211_bss_change {
 	BSS_CHANGED_AP_PROBE_RESP	= 1<<16,
 	BSS_CHANGED_PS			= 1<<17,
 	BSS_CHANGED_TXPOWER		= 1<<18,
+	BSS_CHANGED_P2P_PS		= 1<<19,
 
 	/* when adding here, make sure to change ieee80211_reconfig */
 };
@@ -312,6 +315,8 @@ enum ieee80211_rssi_event {
  * @ssid_len: Length of SSID given in @ssid.
  * @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode.
  * @txpower: TX power in dBm
+ * @p2p_ctwindow: P2P CTWindow, only for P2P client interfaces
+ * @p2p_oppps: P2P opportunistic PS is enabled
  */
 struct ieee80211_bss_conf {
 	const u8 *bssid;
@@ -345,6 +350,8 @@ struct ieee80211_bss_conf {
 	size_t ssid_len;
 	bool hidden_ssid;
 	int txpower;
+	u8 p2p_ctwindow;
+	bool p2p_oppps;
 };
 
 /**