[deliverable/linux.git] / drivers / net / wireless / ath / ath.h

/*
 * Copyright (c) 2008-2009 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef ATH_H
#define ATH_H

#include <linux/skbuff.h>
#include <linux/if_ether.h>
#include <linux/spinlock.h>
#include <net/mac80211.h>

/*
 * The key cache is used for h/w cipher state and also for
 * tracking station state such as the current tx antenna.
 * We also setup a mapping table between key cache slot indices
 * and station state to short-circuit node lookups on rx.
 * Different parts have different size key caches.  We handle
 * up to ATH_KEYMAX entries (could dynamically allocate state).
 */
#define	ATH_KEYMAX	        128     /* max key cache size we handle */

static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};

struct ath_ani {
	bool caldone;
	unsigned int longcal_timer;
	unsigned int shortcal_timer;
	unsigned int resetcal_timer;
	unsigned int checkani_timer;
	struct timer_list timer;
};

struct ath_cycle_counters {
	u32 cycles;
	u32 rx_busy;
	u32 rx_frame;
	u32 tx_frame;
};

enum ath_device_state {
	ATH_HW_UNAVAILABLE,
	ATH_HW_INITIALIZED,
};

enum ath_bus_type {
	ATH_PCI,
	ATH_AHB,
	ATH_USB,
};

struct reg_dmn_pair_mapping {
	u16 regDmnEnum;
	u16 reg_5ghz_ctl;
	u16 reg_2ghz_ctl;
};

struct ath_regulatory {
	char alpha2[2];
	u16 country_code;
	u16 max_power_level;
	u16 current_rd;
	int16_t power_limit;
	struct reg_dmn_pair_mapping *regpair;
};

enum ath_crypt_caps {
	ATH_CRYPT_CAP_CIPHER_AESCCM		= BIT(0),
	ATH_CRYPT_CAP_MIC_COMBINED		= BIT(1),
};

struct ath_keyval {
	u8 kv_type;
	u8 kv_pad;
	u16 kv_len;
	u8 kv_val[16]; /* TK */
	u8 kv_mic[8]; /* Michael MIC key */
	u8 kv_txmic[8]; /* Michael MIC TX key (used only if the hardware
			 * supports both MIC keys in the same key cache entry;
			 * in that case, kv_mic is the RX key) */
};

enum ath_cipher {
	ATH_CIPHER_WEP = 0,
	ATH_CIPHER_AES_OCB = 1,
	ATH_CIPHER_AES_CCM = 2,
	ATH_CIPHER_CKIP = 3,
	ATH_CIPHER_TKIP = 4,
	ATH_CIPHER_CLR = 5,
	ATH_CIPHER_MIC = 127
};

/**
 * struct ath_ops - Register read/write operations
 *
 * @read: Register read
 * @multi_read: Multiple register read
 * @write: Register write
 * @enable_write_buffer: Enable multiple register writes
 * @write_flush: flush buffered register writes and disable buffering
 */
struct ath_ops {
	unsigned int (*read)(void *, u32 reg_offset);
	void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
	void (*write)(void *, u32 val, u32 reg_offset);
	void (*enable_write_buffer)(void *);
	void (*write_flush) (void *);
	u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
};

struct ath_common;
struct ath_bus_ops;

struct ath_common {
	void *ah;
	void *priv;
	struct ieee80211_hw *hw;
	int debug_mask;
	enum ath_device_state state;

	struct ath_ani ani;

	u16 cachelsz;
	u16 curaid;
	u8 macaddr[ETH_ALEN];
	u8 curbssid[ETH_ALEN];
	u8 bssidmask[ETH_ALEN];

	u32 rx_bufsize;

	u32 keymax;
	DECLARE_BITMAP(keymap, ATH_KEYMAX);
	DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
	DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
	enum ath_crypt_caps crypt_caps;

	unsigned int clockrate;

	spinlock_t cc_lock;
	struct ath_cycle_counters cc_ani;
	struct ath_cycle_counters cc_survey;

	struct ath_regulatory regulatory;
	struct ath_regulatory reg_world_copy;
	const struct ath_ops *ops;
	const struct ath_bus_ops *bus_ops;

	bool btcoex_enabled;
	bool disable_ani;
};

struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
				u32 len,
				gfp_t gfp_mask);

void ath_hw_setbssidmask(struct ath_common *common);
void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key);
int ath_key_config(struct ath_common *common,
			  struct ieee80211_vif *vif,
			  struct ieee80211_sta *sta,
			  struct ieee80211_key_conf *key);
bool ath_hw_keyreset(struct ath_common *common, u16 entry);
void ath_hw_cycle_counters_update(struct ath_common *common);
int32_t ath_hw_get_listen_time(struct ath_common *common);

__printf(3, 4)
void ath_printk(const char *level, const 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_MCI: Message Coexistence Interface, a private protocol
 *	used exclusively for WLAN-BT coexistence starting from
 *	AR9462.
 * @ATH_DBG_DFS: radar datection
 * @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_MCI		= 0x00010000,
	ATH_DBG_DFS		= 0x00020000,
	ATH_DBG_ANY		= 0xffffffff
};

#define ATH_DBG_DEFAULT (ATH_DBG_FATAL)

#ifdef CONFIG_ATH_DEBUG

#define ath_dbg(common, dbg_mask, fmt, ...)				\
do {									\
	if ((common)->debug_mask & ATH_DBG_##dbg_mask)			\
		ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__);	\
} while (0)

#define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
#define ATH_DBG_WARN_ON_ONCE(foo) WARN_ON_ONCE(foo)

#else

static inline  __attribute__ ((format (printf, 3, 4)))
void _ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
	     const char *fmt, ...)
{
}
#define ath_dbg(common, dbg_mask, fmt, ...)				\
	_ath_dbg(common, ATH_DBG_##dbg_mask, fmt, ##__VA_ARGS__)

#define ATH_DBG_WARN(foo, arg...) do {} while (0)
#define ATH_DBG_WARN_ON_ONCE(foo) ({				\
	int __ret_warn_once = !!(foo);				\
	unlikely(__ret_warn_once);				\
})

#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 */
Commit	Line	Data
d15dd3e5 LR	1	/*
	2	* Copyright (c) 2008-2009 Atheros Communications Inc.
	3	*
	4	* Permission to use, copy, modify, and/or distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	11	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	13	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	14	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
	16
	17	#ifndef ATH_H
	18	#define ATH_H
	19
	20	#include <linux/skbuff.h>
bcd8f54a	21	#include <linux/if_ether.h>
b5bfc568	22	#include <linux/spinlock.h>
b002a4a9	23	#include <net/mac80211.h>
d15dd3e5	24
7e86c104 LR	25	/*
	26	* The key cache is used for h/w cipher state and also for
	27	* tracking station state such as the current tx antenna.
	28	* We also setup a mapping table between key cache slot indices
	29	* and station state to short-circuit node lookups on rx.
	30	* Different parts have different size key caches. We handle
	31	* up to ATH_KEYMAX entries (could dynamically allocate state).
	32	*/
	33	#define ATH_KEYMAX 128 /* max key cache size we handle */
	34
17753748 LR	35	static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
17753748 LR	36
3d536acf LR	37	struct ath_ani {
3d536acf LR	38	bool caldone;
3d536acf LR	39	unsigned int longcal_timer;
	40	unsigned int shortcal_timer;
	41	unsigned int resetcal_timer;
	42	unsigned int checkani_timer;
	43	struct timer_list timer;
	44	};
	45
b5bfc568 FF	46	struct ath_cycle_counters {
	47	u32 cycles;
	48	u32 rx_busy;
	49	u32 rx_frame;
	50	u32 tx_frame;
	51	};
	52
211f5859 LR	53	enum ath_device_state {
	54	ATH_HW_UNAVAILABLE,
	55	ATH_HW_INITIALIZED,
	56	};
	57
497ad9ad S	58	enum ath_bus_type {
	59	ATH_PCI,
	60	ATH_AHB,
	61	ATH_USB,
	62	};
	63
608b88cb LR	64	struct reg_dmn_pair_mapping {
	65	u16 regDmnEnum;
	66	u16 reg_5ghz_ctl;
	67	u16 reg_2ghz_ctl;
	68	};
	69
	70	struct ath_regulatory {
	71	char alpha2[2];
	72	u16 country_code;
	73	u16 max_power_level;
608b88cb	74	u16 current_rd;
608b88cb LR	75	int16_t power_limit;
	76	struct reg_dmn_pair_mapping *regpair;
	77	};
	78
34a13051	79	enum ath_crypt_caps {
ce2220d1 BR	80	ATH_CRYPT_CAP_CIPHER_AESCCM = BIT(0),
ce2220d1 BR	81	ATH_CRYPT_CAP_MIC_COMBINED = BIT(1),
34a13051 BR	82	};
34a13051 BR	83
1bba5b73 BR	84	struct ath_keyval {
	85	u8 kv_type;
	86	u8 kv_pad;
	87	u16 kv_len;
	88	u8 kv_val[16]; /* TK */
	89	u8 kv_mic[8]; /* Michael MIC key */
	90	u8 kv_txmic[8]; /* Michael MIC TX key (used only if the hardware
	91	* supports both MIC keys in the same key cache entry;
	92	* in that case, kv_mic is the RX key) */
	93	};
	94
	95	enum ath_cipher {
	96	ATH_CIPHER_WEP = 0,
	97	ATH_CIPHER_AES_OCB = 1,
	98	ATH_CIPHER_AES_CCM = 2,
	99	ATH_CIPHER_CKIP = 3,
	100	ATH_CIPHER_TKIP = 4,
	101	ATH_CIPHER_CLR = 5,
	102	ATH_CIPHER_MIC = 127
	103	};
	104
50f56316 S	105	/**
	106	* struct ath_ops - Register read/write operations
	107	*
	108	* @read: Register read
09a525d3	109	* @multi_read: Multiple register read
50f56316 S	110	* @write: Register write
50f56316 S	111	* @enable_write_buffer: Enable multiple register writes
435c1610	112	* @write_flush: flush buffered register writes and disable buffering
50f56316	113	*/
9e4bffd2 LR	114	struct ath_ops {
9e4bffd2 LR	115	unsigned int (read)(void , u32 reg_offset);
09a525d3	116	void (multi_read)(void , u32 addr, u32 val, u16 count);
50f56316 S	117	void (write)(void , u32 val, u32 reg_offset);
50f56316 S	118	void (enable_write_buffer)(void );
50f56316	119	void (write_flush) (void );
845e03c9	120	u32 (rmw)(void , u32 reg_offset, u32 set, u32 clr);
9e4bffd2 LR	121	};
9e4bffd2 LR	122
5bb12791	123	struct ath_common;
0cb9e06b	124	struct ath_bus_ops;
5bb12791	125
d15dd3e5	126	struct ath_common {
13b81559	127	void *ah;
bc974f4a	128	void *priv;
b002a4a9	129	struct ieee80211_hw *hw;
c46917bb	130	int debug_mask;
211f5859	131	enum ath_device_state state;
c46917bb	132
3d536acf LR	133	struct ath_ani ani;
3d536acf LR	134
d15dd3e5	135	u16 cachelsz;
1510718d LR	136	u16 curaid;
	137	u8 macaddr[ETH_ALEN];
	138	u8 curbssid[ETH_ALEN];
	139	u8 bssidmask[ETH_ALEN];
c46917bb	140
cc861f74 LR	141	u32 rx_bufsize;
cc861f74 LR	142
7e86c104 LR	143	u32 keymax;
7e86c104 LR	144	DECLARE_BITMAP(keymap, ATH_KEYMAX);
56363dde	145	DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
bed3d9c0	146	DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
34a13051	147	enum ath_crypt_caps crypt_caps;
7e86c104	148
dfdac8ac FF	149	unsigned int clockrate;
dfdac8ac FF	150
b5bfc568 FF	151	spinlock_t cc_lock;
	152	struct ath_cycle_counters cc_ani;
	153	struct ath_cycle_counters cc_survey;
	154
608b88cb	155	struct ath_regulatory regulatory;
de1c732b	156	struct ath_regulatory reg_world_copy;
9adca126	157	const struct ath_ops *ops;
5bb12791	158	const struct ath_bus_ops *bus_ops;
8f5dcb1c VT	159
8f5dcb1c VT	160	bool btcoex_enabled;
05c0be2f	161	bool disable_ani;
d15dd3e5 LR	162	};
	163
	164	struct sk_buff ath_rxbuf_alloc(struct ath_common common,
	165	u32 len,
	166	gfp_t gfp_mask);
	167
13b81559	168	void ath_hw_setbssidmask(struct ath_common *common);
1bba5b73 BR	169	void ath_key_delete(struct ath_common common, struct ieee80211_key_conf key);
	170	int ath_key_config(struct ath_common *common,
	171	struct ieee80211_vif *vif,
	172	struct ieee80211_sta *sta,
	173	struct ieee80211_key_conf *key);
	174	bool ath_hw_keyreset(struct ath_common *common, u16 entry);
b5bfc568 FF	175	void ath_hw_cycle_counters_update(struct ath_common *common);
b5bfc568 FF	176	int32_t ath_hw_get_listen_time(struct ath_common *common);
13b81559	177
98b36a02 BG	178	__printf(3, 4)
	179	void ath_printk(const char level, const struct ath_common common,
	180	const char *fmt, ...);
21a99f93 JP	181
21a99f93 JP	182	#define ath_emerg(common, fmt, ...) \
98b36a02	183	ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
21a99f93	184	#define ath_alert(common, fmt, ...) \
98b36a02	185	ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
21a99f93	186	#define ath_crit(common, fmt, ...) \
98b36a02	187	ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
21a99f93	188	#define ath_err(common, fmt, ...) \
98b36a02	189	ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
21a99f93	190	#define ath_warn(common, fmt, ...) \
98b36a02	191	ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
21a99f93	192	#define ath_notice(common, fmt, ...) \
98b36a02	193	ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
21a99f93	194	#define ath_info(common, fmt, ...) \
98b36a02	195	ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
21a99f93 JP	196
	197	/**
	198	* enum ath_debug_level - atheros wireless debug level
	199	*
	200	* @ATH_DBG_RESET: reset processing
	201	* @ATH_DBG_QUEUE: hardware queue management
	202	* @ATH_DBG_EEPROM: eeprom processing
	203	* @ATH_DBG_CALIBRATE: periodic calibration
	204	* @ATH_DBG_INTERRUPT: interrupt processing
	205	* @ATH_DBG_REGULATORY: regulatory processing
	206	* @ATH_DBG_ANI: adaptive noise immunitive processing
	207	* @ATH_DBG_XMIT: basic xmit operation
	208	* @ATH_DBG_BEACON: beacon handling
	209	* @ATH_DBG_CONFIG: configuration of the hardware
	210	* @ATH_DBG_FATAL: fatal errors, this is the default, DBG_DEFAULT
	211	* @ATH_DBG_PS: power save processing
	212	* @ATH_DBG_HWTIMER: hardware timer handling
	213	* @ATH_DBG_BTCOEX: bluetooth coexistance
	214	* @ATH_DBG_BSTUCK: stuck beacons
55e435de LR	215	* @ATH_DBG_MCI: Message Coexistence Interface, a private protocol
	216	* used exclusively for WLAN-BT coexistence starting from
	217	* AR9462.
9b203c8f	218	* @ATH_DBG_DFS: radar datection
21a99f93 JP	219	* @ATH_DBG_ANY: enable all debugging
	220	*
	221	* The debug level is used to control the amount and type of debugging output
	222	* we want to see. Each driver has its own method for enabling debugging and
	223	* modifying debug level states -- but this is typically done through a
	224	* module parameter 'debug' along with a respective 'debug' debugfs file
	225	* entry.
	226	*/
	227	enum ATH_DEBUG {
	228	ATH_DBG_RESET = 0x00000001,
	229	ATH_DBG_QUEUE = 0x00000002,
	230	ATH_DBG_EEPROM = 0x00000004,
	231	ATH_DBG_CALIBRATE = 0x00000008,
	232	ATH_DBG_INTERRUPT = 0x00000010,
	233	ATH_DBG_REGULATORY = 0x00000020,
	234	ATH_DBG_ANI = 0x00000040,
	235	ATH_DBG_XMIT = 0x00000080,
	236	ATH_DBG_BEACON = 0x00000100,
	237	ATH_DBG_CONFIG = 0x00000200,
	238	ATH_DBG_FATAL = 0x00000400,
	239	ATH_DBG_PS = 0x00000800,
	240	ATH_DBG_HWTIMER = 0x00001000,
	241	ATH_DBG_BTCOEX = 0x00002000,
	242	ATH_DBG_WMI = 0x00004000,
	243	ATH_DBG_BSTUCK = 0x00008000,
7dc181c2	244	ATH_DBG_MCI = 0x00010000,
9b203c8f	245	ATH_DBG_DFS = 0x00020000,
21a99f93 JP	246	ATH_DBG_ANY = 0xffffffff
	247	};
	248
	249	#define ATH_DBG_DEFAULT (ATH_DBG_FATAL)
	250
	251	#ifdef CONFIG_ATH_DEBUG
	252
7b8112d6 JP	253	#define ath_dbg(common, dbg_mask, fmt, ...) \
7b8112d6 JP	254	do { \
d2182b69	255	if ((common)->debug_mask & ATH_DBG_##dbg_mask) \
98b36a02	256	ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__); \
7b8112d6 JP	257	} while (0)
7b8112d6 JP	258
21a99f93	259	#define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
d7fd1b50	260	#define ATH_DBG_WARN_ON_ONCE(foo) WARN_ON_ONCE(foo)
21a99f93 JP	261
	262	#else
	263
b9075fa9	264	static inline __attribute__ ((format (printf, 3, 4)))
d2182b69	265	void _ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
7b8112d6	266	const char *fmt, ...)
21a99f93	267	{
21a99f93	268	}
d2182b69 JP	269	#define ath_dbg(common, dbg_mask, fmt, ...) \
	270	_ath_dbg(common, ATH_DBG_##dbg_mask, fmt, ##__VA_ARGS__)
	271
21a99f93	272	#define ATH_DBG_WARN(foo, arg...) do {} while (0)
b7613370 JL	273	#define ATH_DBG_WARN_ON_ONCE(foo) ({ \
	274	int __ret_warn_once = !!(foo); \
	275	unlikely(__ret_warn_once); \
	276	})
21a99f93 JP	277
	278	#endif /* CONFIG_ATH_DEBUG */
	279
	280	/** Returns string describing opmode, or NULL if unknown mode. */
	281	#ifdef CONFIG_ATH_DEBUG
	282	const char *ath_opmode_to_string(enum nl80211_iftype opmode);
	283	#else
	284	static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
	285	{
	286	return "UNKNOWN";
	287	}
	288	#endif
	289
d15dd3e5	290	#endif /* ATH_H */