diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 26bdbee..c914f52 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -186,4 +186,107 @@
 void ath_hw_cycle_counters_update(struct ath_common *common);
 int32_t ath_hw_get_listen_time(struct ath_common *common);
 
+extern __attribute__ ((format (printf, 3, 4))) int
+ath_printk(const char *level, struct ath_common *common, const char *fmt, ...);
+
+#define ath_emerg(common, fmt, ...)				\
+	ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
+#define ath_alert(common, fmt, ...)				\
+	ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
+#define ath_crit(common, fmt, ...)				\
+	ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
+#define ath_err(common, fmt, ...)				\
+	ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
+#define ath_warn(common, fmt, ...)				\
+	ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
+#define ath_notice(common, fmt, ...)				\
+	ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
+#define ath_info(common, fmt, ...)				\
+	ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
+
+/**
+ * enum ath_debug_level - atheros wireless debug level
+ *
+ * @ATH_DBG_RESET: reset processing
+ * @ATH_DBG_QUEUE: hardware queue management
+ * @ATH_DBG_EEPROM: eeprom processing
+ * @ATH_DBG_CALIBRATE: periodic calibration
+ * @ATH_DBG_INTERRUPT: interrupt processing
+ * @ATH_DBG_REGULATORY: regulatory processing
+ * @ATH_DBG_ANI: adaptive noise immunitive processing
+ * @ATH_DBG_XMIT: basic xmit operation
+ * @ATH_DBG_BEACON: beacon handling
+ * @ATH_DBG_CONFIG: configuration of the hardware
+ * @ATH_DBG_FATAL: fatal errors, this is the default, DBG_DEFAULT
+ * @ATH_DBG_PS: power save processing
+ * @ATH_DBG_HWTIMER: hardware timer handling
+ * @ATH_DBG_BTCOEX: bluetooth coexistance
+ * @ATH_DBG_BSTUCK: stuck beacons
+ * @ATH_DBG_ANY: enable all debugging
+ *
+ * The debug level is used to control the amount and type of debugging output
+ * we want to see. Each driver has its own method for enabling debugging and
+ * modifying debug level states -- but this is typically done through a
+ * module parameter 'debug' along with a respective 'debug' debugfs file
+ * entry.
+ */
+enum ATH_DEBUG {
+	ATH_DBG_RESET		= 0x00000001,
+	ATH_DBG_QUEUE		= 0x00000002,
+	ATH_DBG_EEPROM		= 0x00000004,
+	ATH_DBG_CALIBRATE	= 0x00000008,
+	ATH_DBG_INTERRUPT	= 0x00000010,
+	ATH_DBG_REGULATORY	= 0x00000020,
+	ATH_DBG_ANI		= 0x00000040,
+	ATH_DBG_XMIT		= 0x00000080,
+	ATH_DBG_BEACON		= 0x00000100,
+	ATH_DBG_CONFIG		= 0x00000200,
+	ATH_DBG_FATAL		= 0x00000400,
+	ATH_DBG_PS		= 0x00000800,
+	ATH_DBG_HWTIMER		= 0x00001000,
+	ATH_DBG_BTCOEX		= 0x00002000,
+	ATH_DBG_WMI		= 0x00004000,
+	ATH_DBG_BSTUCK		= 0x00008000,
+	ATH_DBG_ANY		= 0xffffffff
+};
+
+#define ATH_DBG_DEFAULT (ATH_DBG_FATAL)
+
+#ifdef CONFIG_ATH_DEBUG
+
+#define ath_dbg(common, dbg_mask, fmt, ...)			\
+({								\
+	int rtn;						\
+	if ((common)->debug_mask & dbg_mask)			\
+		rtn = ath_printk(KERN_DEBUG, common, fmt,	\
+				 ##__VA_ARGS__);		\
+	else							\
+		rtn = 0;					\
+								\
+	rtn;							\
+})
+#define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
+
+#else
+
+static inline  __attribute__ ((format (printf, 3, 4))) int
+ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
+	const char *fmt, ...)
+{
+	return 0;
+}
+#define ATH_DBG_WARN(foo, arg...) do {} while (0)
+
+#endif /* CONFIG_ATH_DEBUG */
+
+/** Returns string describing opmode, or NULL if unknown mode. */
+#ifdef CONFIG_ATH_DEBUG
+const char *ath_opmode_to_string(enum nl80211_iftype opmode);
+#else
+static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
+{
+	return "UNKNOWN";
+}
+#endif
+
 #endif /* ATH_H */