mac80211: Modify tsf via debugfs in mesh interfaces

Signed-off-by: Javier Cardona <javier@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 14a3cac..b4f6cb3 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -379,6 +379,22 @@
 	return cpu_to_le64(now + data->tsf_offset);
 }
 
+static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
+		struct ieee80211_vif *vif)
+{
+	struct mac80211_hwsim_data *data = hw->priv;
+	return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
+}
+
+static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
+		struct ieee80211_vif *vif, u64 tsf)
+{
+	struct mac80211_hwsim_data *data = hw->priv;
+	struct timeval tv = ktime_to_timeval(ktime_get_real());
+	u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
+	data->tsf_offset = tsf - now;
+}
+
 static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
 				      struct sk_buff *tx_skb)
 {
@@ -1224,6 +1240,8 @@
 	.sw_scan_start = mac80211_hwsim_sw_scan,
 	.sw_scan_complete = mac80211_hwsim_sw_scan_complete,
 	.flush = mac80211_hwsim_flush,
+	.get_tsf = mac80211_hwsim_get_tsf,
+	.set_tsf = mac80211_hwsim_set_tsf,
 };