libertas: add ethtool support for wake-on-lan configuration

Also, check that suspend is refused if HOST_SLEEP_CFG hasn't been done.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index 86b45a4..60a6a51 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -153,6 +153,11 @@
 	int (*hw_get_int_status) (struct lbs_private *priv, u8 *);
 	int (*hw_read_event_cause) (struct lbs_private *);
 
+	/* Wake On LAN */
+	uint32_t wol_criteria;
+	uint8_t wol_gpio;
+	uint8_t wol_gap;
+
 	/* was struct lbs_adapter from here... */
 
 	/** Wlan adapter data structure*/