diff --git a/sys/net80211/ieee80211_ht.c b/sys/net80211/ieee80211_ht.c
index 09c007a9d6ce..b43bc075472f 100644
--- a/sys/net80211/ieee80211_ht.c
+++ b/sys/net80211/ieee80211_ht.c
@@ -1415,12 +1415,6 @@ ieee80211_ht_timeout(struct ieee80211com *ic)
 	}
 }
 
-/* unalligned little endian access */     
-#define LE_READ_2(p)					\
-	((uint16_t)					\
-	 ((((const uint8_t *)(p))[0]      ) |		\
-	  (((const uint8_t *)(p))[1] <<  8)))
-
 /*
  * Process an 802.11n HT capabilities ie.
  */
@@ -1832,6 +1826,55 @@ ieee80211_addba_request(struct ieee80211_node *ni,
 	return 1;
 }
 
+/*
+ * Called by drivers that wish to request an ADDBA session be
+ * setup.  This brings it up and starts the request timer.
+ */
+int
+ieee80211_ampdu_tx_request_ext(struct ieee80211_node *ni, int tid)
+{
+	struct ieee80211_tx_ampdu *tap;
+
+	if (tid < 0 || tid > 15)
+		return (0);
+	tap = &ni->ni_tx_ampdu[tid];
+
+	/* XXX locking */
+	if ((tap->txa_flags & IEEE80211_AGGR_SETUP) == 0) {
+		/* do deferred setup of state */
+		ampdu_tx_setup(tap);
+	}
+	/* XXX hack for not doing proper locking */
+	tap->txa_flags &= ~IEEE80211_AGGR_NAK;
+	addba_start_timeout(tap);
+	return (1);
+}
+
+/*
+ * Called by drivers that have marked a session as active.
+ */
+int
+ieee80211_ampdu_tx_request_active_ext(struct ieee80211_node *ni, int tid,
+    int status)
+{
+	struct ieee80211_tx_ampdu *tap;
+
+	if (tid < 0 || tid > 15)
+		return (0);
+	tap = &ni->ni_tx_ampdu[tid];
+
+	/* XXX locking */
+	addba_stop_timeout(tap);
+	if (status == 1) {
+		tap->txa_flags |= IEEE80211_AGGR_RUNNING;
+		tap->txa_attempts = 0;
+	} else {
+		/* mark tid so we don't try again */
+		tap->txa_flags |= IEEE80211_AGGR_NAK;
+	}
+	return (1);
+}
+
 /*
  * Default method for processing an A-MPDU tx aggregation
  * response.  We shutdown any pending timer and update the
diff --git a/sys/net80211/ieee80211_ht.h b/sys/net80211/ieee80211_ht.h
index f7ba6c63c36a..f099ffe77464 100644
--- a/sys/net80211/ieee80211_ht.h
+++ b/sys/net80211/ieee80211_ht.h
@@ -202,5 +202,8 @@ void	ieee80211_ht_update_beacon(struct ieee80211vap *,
 		struct ieee80211_beacon_offsets *);
 int	ieee80211_ampdu_rx_start_ext(struct ieee80211_node *ni, int tid,
 	    int seq, int baw);
+int	ieee80211_ampdu_tx_request_ext(struct ieee80211_node *ni, int tid);
+int	ieee80211_ampdu_tx_request_active_ext(struct ieee80211_node *ni,
+	    int tid, int status);
 
 #endif /* _NET80211_IEEE80211_HT_H_ */