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v6.8
  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/etherdevice.h>
 21#include <linux/skbuff.h>
 22#include <linux/if_ether.h>
 23#include <linux/spinlock.h>
 24#include <net/mac80211.h>
 25
 26/*
 27 * The key cache is used for h/w cipher state and also for
 28 * tracking station state such as the current tx antenna.
 29 * We also setup a mapping table between key cache slot indices
 30 * and station state to short-circuit node lookups on rx.
 31 * Different parts have different size key caches.  We handle
 32 * up to ATH_KEYMAX entries (could dynamically allocate state).
 33 */
 34#define	ATH_KEYMAX	        128     /* max key cache size we handle */
 35
 36struct ath_ani {
 37	bool caldone;
 38	unsigned int longcal_timer;
 39	unsigned int shortcal_timer;
 40	unsigned int resetcal_timer;
 41	unsigned int checkani_timer;
 42	struct timer_list timer;
 43};
 44
 45struct ath_cycle_counters {
 46	u32 cycles;
 47	u32 rx_busy;
 48	u32 rx_frame;
 49	u32 tx_frame;
 50};
 51
 52enum ath_device_state {
 53	ATH_HW_UNAVAILABLE,
 54	ATH_HW_INITIALIZED,
 55};
 56
 57enum ath_op_flags {
 58	ATH_OP_INVALID,
 59	ATH_OP_BEACONS,
 60	ATH_OP_ANI_RUN,
 61	ATH_OP_PRIM_STA_VIF,
 62	ATH_OP_HW_RESET,
 63	ATH_OP_SCANNING,
 64	ATH_OP_MULTI_CHANNEL,
 65	ATH_OP_WOW_ENABLED,
 66};
 67
 68enum ath_bus_type {
 69	ATH_PCI,
 70	ATH_AHB,
 71	ATH_USB,
 72};
 73
 74struct reg_dmn_pair_mapping {
 75	u16 reg_domain;
 76	u16 reg_5ghz_ctl;
 77	u16 reg_2ghz_ctl;
 78};
 79
 80struct ath_regulatory {
 81	char alpha2[2];
 82	enum nl80211_dfs_regions region;
 83	u16 country_code;
 84	u16 max_power_level;
 85	u16 current_rd;
 86	int16_t power_limit;
 87	struct reg_dmn_pair_mapping *regpair;
 88};
 89
 90enum ath_crypt_caps {
 91	ATH_CRYPT_CAP_CIPHER_AESCCM		= BIT(0),
 92	ATH_CRYPT_CAP_MIC_COMBINED		= BIT(1),
 93};
 94
 95struct ath_keyval {
 96	u8 kv_type;
 97	u8 kv_pad;
 98	u16 kv_len;
 99	struct_group(kv_values,
100		u8 kv_val[16]; /* TK */
101		u8 kv_mic[8]; /* Michael MIC key */
102		u8 kv_txmic[8]; /* Michael MIC TX key (used only if the hardware
103				 * supports both MIC keys in the same key cache entry;
104				 * in that case, kv_mic is the RX key) */
105	);
106};
107
108enum ath_cipher {
109	ATH_CIPHER_WEP = 0,
110	ATH_CIPHER_AES_OCB = 1,
111	ATH_CIPHER_AES_CCM = 2,
112	ATH_CIPHER_CKIP = 3,
113	ATH_CIPHER_TKIP = 4,
114	ATH_CIPHER_CLR = 5,
115	ATH_CIPHER_MIC = 127
116};
117
118/**
119 * struct ath_ops - Register read/write operations
120 *
121 * @read: Register read
122 * @multi_read: Multiple register read
123 * @write: Register write
124 * @enable_write_buffer: Enable multiple register writes
125 * @write_flush: flush buffered register writes and disable buffering
126 */
127struct ath_ops {
128	unsigned int (*read)(void *, u32 reg_offset);
129	void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
130	void (*write)(void *, u32 val, u32 reg_offset);
131	void (*enable_write_buffer)(void *);
132	void (*write_flush) (void *);
133	u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
134	void (*enable_rmw_buffer)(void *);
135	void (*rmw_flush) (void *);
136
137};
138
139struct ath_common;
140struct ath_bus_ops;
141
142struct ath_ps_ops {
143	void (*wakeup)(struct ath_common *common);
144	void (*restore)(struct ath_common *common);
145};
146
147struct ath_common {
148	void *ah;
149	void *priv;
150	struct ieee80211_hw *hw;
151	int debug_mask;
152	enum ath_device_state state;
153	unsigned long op_flags;
154
155	struct ath_ani ani;
156
157	u16 cachelsz;
158	u16 curaid;
159	u8 macaddr[ETH_ALEN];
160	u8 curbssid[ETH_ALEN] __aligned(2);
161	u8 bssidmask[ETH_ALEN];
162
163	u32 rx_bufsize;
164
165	u32 keymax;
166	DECLARE_BITMAP(keymap, ATH_KEYMAX);
167	DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
168	DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
169	enum ath_crypt_caps crypt_caps;
170
171	unsigned int clockrate;
172
173	spinlock_t cc_lock;
174	struct ath_cycle_counters cc_ani;
175	struct ath_cycle_counters cc_survey;
176
177	struct ath_regulatory regulatory;
178	struct ath_regulatory reg_world_copy;
179	const struct ath_ops *ops;
180	const struct ath_bus_ops *bus_ops;
181	const struct ath_ps_ops *ps_ops;
182
183	bool btcoex_enabled;
184	bool disable_ani;
185	bool bt_ant_diversity;
186
187	int last_rssi;
188	struct ieee80211_supported_band sbands[NUM_NL80211_BANDS];
189};
190
191static inline const struct ath_ps_ops *ath_ps_ops(struct ath_common *common)
192{
193	return common->ps_ops;
194}
195
196struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
197				u32 len,
198				gfp_t gfp_mask);
199bool ath_is_mybeacon(struct ath_common *common, struct ieee80211_hdr *hdr);
200
201void ath_hw_setbssidmask(struct ath_common *common);
202void ath_key_delete(struct ath_common *common, u8 hw_key_idx);
203int ath_key_config(struct ath_common *common,
204			  struct ieee80211_vif *vif,
205			  struct ieee80211_sta *sta,
206			  struct ieee80211_key_conf *key);
207bool ath_hw_keyreset(struct ath_common *common, u16 entry);
208bool ath_hw_keysetmac(struct ath_common *common, u16 entry, const u8 *mac);
209void ath_hw_cycle_counters_update(struct ath_common *common);
210int32_t ath_hw_get_listen_time(struct ath_common *common);
211
212__printf(3, 4)
213void ath_printk(const char *level, const struct ath_common *common,
214		const char *fmt, ...);
215
216#define ath_emerg(common, fmt, ...)				\
217	ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
218#define ath_alert(common, fmt, ...)				\
219	ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
220#define ath_crit(common, fmt, ...)				\
221	ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
222#define ath_err(common, fmt, ...)				\
223	ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
224#define ath_warn(common, fmt, ...)				\
225	ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
226#define ath_notice(common, fmt, ...)				\
227	ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
228#define ath_info(common, fmt, ...)				\
229	ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
230
231/**
232 * enum ath_debug_level - atheros wireless debug level
233 *
234 * @ATH_DBG_RESET: reset processing
235 * @ATH_DBG_QUEUE: hardware queue management
236 * @ATH_DBG_EEPROM: eeprom processing
237 * @ATH_DBG_CALIBRATE: periodic calibration
238 * @ATH_DBG_INTERRUPT: interrupt processing
239 * @ATH_DBG_REGULATORY: regulatory processing
240 * @ATH_DBG_ANI: adaptive noise immunitive processing
241 * @ATH_DBG_XMIT: basic xmit operation
242 * @ATH_DBG_BEACON: beacon handling
243 * @ATH_DBG_CONFIG: configuration of the hardware
244 * @ATH_DBG_FATAL: fatal errors, this is the default, DBG_DEFAULT
245 * @ATH_DBG_PS: power save processing
246 * @ATH_DBG_HWTIMER: hardware timer handling
247 * @ATH_DBG_BTCOEX: bluetooth coexistance
248 * @ATH_DBG_BSTUCK: stuck beacons
249 * @ATH_DBG_MCI: Message Coexistence Interface, a private protocol
250 *	used exclusively for WLAN-BT coexistence starting from
251 *	AR9462.
252 * @ATH_DBG_DFS: radar datection
253 * @ATH_DBG_WOW: Wake on Wireless
254 * @ATH_DBG_DYNACK: dynack handling
255 * @ATH_DBG_SPECTRAL_SCAN: FFT spectral scan
256 * @ATH_DBG_ANY: enable all debugging
257 *
258 * The debug level is used to control the amount and type of debugging output
259 * we want to see. Each driver has its own method for enabling debugging and
260 * modifying debug level states -- but this is typically done through a
261 * module parameter 'debug' along with a respective 'debug' debugfs file
262 * entry.
263 */
264enum ATH_DEBUG {
265	ATH_DBG_RESET		= 0x00000001,
266	ATH_DBG_QUEUE		= 0x00000002,
267	ATH_DBG_EEPROM		= 0x00000004,
268	ATH_DBG_CALIBRATE	= 0x00000008,
269	ATH_DBG_INTERRUPT	= 0x00000010,
270	ATH_DBG_REGULATORY	= 0x00000020,
271	ATH_DBG_ANI		= 0x00000040,
272	ATH_DBG_XMIT		= 0x00000080,
273	ATH_DBG_BEACON		= 0x00000100,
274	ATH_DBG_CONFIG		= 0x00000200,
275	ATH_DBG_FATAL		= 0x00000400,
276	ATH_DBG_PS		= 0x00000800,
277	ATH_DBG_BTCOEX		= 0x00001000,
278	ATH_DBG_WMI		= 0x00002000,
279	ATH_DBG_BSTUCK		= 0x00004000,
280	ATH_DBG_MCI		= 0x00008000,
281	ATH_DBG_DFS		= 0x00010000,
282	ATH_DBG_WOW		= 0x00020000,
283	ATH_DBG_CHAN_CTX	= 0x00040000,
284	ATH_DBG_DYNACK		= 0x00080000,
285	ATH_DBG_SPECTRAL_SCAN	= 0x00100000,
286	ATH_DBG_ANY		= 0xffffffff
287};
288
289#define ATH_DBG_DEFAULT (ATH_DBG_FATAL)
290#define ATH_DBG_MAX_LEN 512
291
292#ifdef CONFIG_ATH_DEBUG
293
294#define ath_dbg(common, dbg_mask, fmt, ...)				\
295do {									\
296	if ((common)->debug_mask & ATH_DBG_##dbg_mask)			\
297		ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__);	\
298} while (0)
299
300#define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
301#define ATH_DBG_WARN_ON_ONCE(foo) WARN_ON_ONCE(foo)
302
303#else
304
305static inline  __attribute__ ((format (printf, 3, 4)))
306void _ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
307	     const char *fmt, ...)
308{
309}
310#define ath_dbg(common, dbg_mask, fmt, ...)				\
311	_ath_dbg(common, ATH_DBG_##dbg_mask, fmt, ##__VA_ARGS__)
312
313#define ATH_DBG_WARN(foo, arg...) do {} while (0)
314#define ATH_DBG_WARN_ON_ONCE(foo) ({				\
315	int __ret_warn_once = !!(foo);				\
316	unlikely(__ret_warn_once);				\
317})
318
319#endif /* CONFIG_ATH_DEBUG */
320
321/** Returns string describing opmode, or NULL if unknown mode. */
322#ifdef CONFIG_ATH_DEBUG
323const char *ath_opmode_to_string(enum nl80211_iftype opmode);
324#else
325static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
326{
327	return "UNKNOWN";
328}
329#endif
330
331extern const char *ath_bus_type_strings[];
332static inline const char *ath_bus_type_to_string(enum ath_bus_type bustype)
333{
334	return ath_bus_type_strings[bustype];
335}
336
337#endif /* ATH_H */
v4.17
  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/etherdevice.h>
 21#include <linux/skbuff.h>
 22#include <linux/if_ether.h>
 23#include <linux/spinlock.h>
 24#include <net/mac80211.h>
 25
 26/*
 27 * The key cache is used for h/w cipher state and also for
 28 * tracking station state such as the current tx antenna.
 29 * We also setup a mapping table between key cache slot indices
 30 * and station state to short-circuit node lookups on rx.
 31 * Different parts have different size key caches.  We handle
 32 * up to ATH_KEYMAX entries (could dynamically allocate state).
 33 */
 34#define	ATH_KEYMAX	        128     /* max key cache size we handle */
 35
 36struct ath_ani {
 37	bool caldone;
 38	unsigned int longcal_timer;
 39	unsigned int shortcal_timer;
 40	unsigned int resetcal_timer;
 41	unsigned int checkani_timer;
 42	struct timer_list timer;
 43};
 44
 45struct ath_cycle_counters {
 46	u32 cycles;
 47	u32 rx_busy;
 48	u32 rx_frame;
 49	u32 tx_frame;
 50};
 51
 52enum ath_device_state {
 53	ATH_HW_UNAVAILABLE,
 54	ATH_HW_INITIALIZED,
 55};
 56
 57enum ath_op_flags {
 58	ATH_OP_INVALID,
 59	ATH_OP_BEACONS,
 60	ATH_OP_ANI_RUN,
 61	ATH_OP_PRIM_STA_VIF,
 62	ATH_OP_HW_RESET,
 63	ATH_OP_SCANNING,
 64	ATH_OP_MULTI_CHANNEL,
 65	ATH_OP_WOW_ENABLED,
 66};
 67
 68enum ath_bus_type {
 69	ATH_PCI,
 70	ATH_AHB,
 71	ATH_USB,
 72};
 73
 74struct reg_dmn_pair_mapping {
 75	u16 reg_domain;
 76	u16 reg_5ghz_ctl;
 77	u16 reg_2ghz_ctl;
 78};
 79
 80struct ath_regulatory {
 81	char alpha2[2];
 82	enum nl80211_dfs_regions region;
 83	u16 country_code;
 84	u16 max_power_level;
 85	u16 current_rd;
 86	int16_t power_limit;
 87	struct reg_dmn_pair_mapping *regpair;
 88};
 89
 90enum ath_crypt_caps {
 91	ATH_CRYPT_CAP_CIPHER_AESCCM		= BIT(0),
 92	ATH_CRYPT_CAP_MIC_COMBINED		= BIT(1),
 93};
 94
 95struct ath_keyval {
 96	u8 kv_type;
 97	u8 kv_pad;
 98	u16 kv_len;
 99	u8 kv_val[16]; /* TK */
100	u8 kv_mic[8]; /* Michael MIC key */
101	u8 kv_txmic[8]; /* Michael MIC TX key (used only if the hardware
102			 * supports both MIC keys in the same key cache entry;
103			 * in that case, kv_mic is the RX key) */
 
 
104};
105
106enum ath_cipher {
107	ATH_CIPHER_WEP = 0,
108	ATH_CIPHER_AES_OCB = 1,
109	ATH_CIPHER_AES_CCM = 2,
110	ATH_CIPHER_CKIP = 3,
111	ATH_CIPHER_TKIP = 4,
112	ATH_CIPHER_CLR = 5,
113	ATH_CIPHER_MIC = 127
114};
115
116/**
117 * struct ath_ops - Register read/write operations
118 *
119 * @read: Register read
120 * @multi_read: Multiple register read
121 * @write: Register write
122 * @enable_write_buffer: Enable multiple register writes
123 * @write_flush: flush buffered register writes and disable buffering
124 */
125struct ath_ops {
126	unsigned int (*read)(void *, u32 reg_offset);
127	void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
128	void (*write)(void *, u32 val, u32 reg_offset);
129	void (*enable_write_buffer)(void *);
130	void (*write_flush) (void *);
131	u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
132	void (*enable_rmw_buffer)(void *);
133	void (*rmw_flush) (void *);
134
135};
136
137struct ath_common;
138struct ath_bus_ops;
139
140struct ath_ps_ops {
141	void (*wakeup)(struct ath_common *common);
142	void (*restore)(struct ath_common *common);
143};
144
145struct ath_common {
146	void *ah;
147	void *priv;
148	struct ieee80211_hw *hw;
149	int debug_mask;
150	enum ath_device_state state;
151	unsigned long op_flags;
152
153	struct ath_ani ani;
154
155	u16 cachelsz;
156	u16 curaid;
157	u8 macaddr[ETH_ALEN];
158	u8 curbssid[ETH_ALEN] __aligned(2);
159	u8 bssidmask[ETH_ALEN];
160
161	u32 rx_bufsize;
162
163	u32 keymax;
164	DECLARE_BITMAP(keymap, ATH_KEYMAX);
165	DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
166	DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
167	enum ath_crypt_caps crypt_caps;
168
169	unsigned int clockrate;
170
171	spinlock_t cc_lock;
172	struct ath_cycle_counters cc_ani;
173	struct ath_cycle_counters cc_survey;
174
175	struct ath_regulatory regulatory;
176	struct ath_regulatory reg_world_copy;
177	const struct ath_ops *ops;
178	const struct ath_bus_ops *bus_ops;
179	const struct ath_ps_ops *ps_ops;
180
181	bool btcoex_enabled;
182	bool disable_ani;
183	bool bt_ant_diversity;
184
185	int last_rssi;
186	struct ieee80211_supported_band sbands[NUM_NL80211_BANDS];
187};
188
189static inline const struct ath_ps_ops *ath_ps_ops(struct ath_common *common)
190{
191	return common->ps_ops;
192}
193
194struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
195				u32 len,
196				gfp_t gfp_mask);
197bool ath_is_mybeacon(struct ath_common *common, struct ieee80211_hdr *hdr);
198
199void ath_hw_setbssidmask(struct ath_common *common);
200void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key);
201int ath_key_config(struct ath_common *common,
202			  struct ieee80211_vif *vif,
203			  struct ieee80211_sta *sta,
204			  struct ieee80211_key_conf *key);
205bool ath_hw_keyreset(struct ath_common *common, u16 entry);
 
206void ath_hw_cycle_counters_update(struct ath_common *common);
207int32_t ath_hw_get_listen_time(struct ath_common *common);
208
209__printf(3, 4)
210void ath_printk(const char *level, const struct ath_common *common,
211		const char *fmt, ...);
212
213#define ath_emerg(common, fmt, ...)				\
214	ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
215#define ath_alert(common, fmt, ...)				\
216	ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
217#define ath_crit(common, fmt, ...)				\
218	ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
219#define ath_err(common, fmt, ...)				\
220	ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
221#define ath_warn(common, fmt, ...)				\
222	ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
223#define ath_notice(common, fmt, ...)				\
224	ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
225#define ath_info(common, fmt, ...)				\
226	ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
227
228/**
229 * enum ath_debug_level - atheros wireless debug level
230 *
231 * @ATH_DBG_RESET: reset processing
232 * @ATH_DBG_QUEUE: hardware queue management
233 * @ATH_DBG_EEPROM: eeprom processing
234 * @ATH_DBG_CALIBRATE: periodic calibration
235 * @ATH_DBG_INTERRUPT: interrupt processing
236 * @ATH_DBG_REGULATORY: regulatory processing
237 * @ATH_DBG_ANI: adaptive noise immunitive processing
238 * @ATH_DBG_XMIT: basic xmit operation
239 * @ATH_DBG_BEACON: beacon handling
240 * @ATH_DBG_CONFIG: configuration of the hardware
241 * @ATH_DBG_FATAL: fatal errors, this is the default, DBG_DEFAULT
242 * @ATH_DBG_PS: power save processing
243 * @ATH_DBG_HWTIMER: hardware timer handling
244 * @ATH_DBG_BTCOEX: bluetooth coexistance
245 * @ATH_DBG_BSTUCK: stuck beacons
246 * @ATH_DBG_MCI: Message Coexistence Interface, a private protocol
247 *	used exclusively for WLAN-BT coexistence starting from
248 *	AR9462.
249 * @ATH_DBG_DFS: radar datection
250 * @ATH_DBG_WOW: Wake on Wireless
251 * @ATH_DBG_DYNACK: dynack handling
252 * @ATH_DBG_SPECTRAL_SCAN: FFT spectral scan
253 * @ATH_DBG_ANY: enable all debugging
254 *
255 * The debug level is used to control the amount and type of debugging output
256 * we want to see. Each driver has its own method for enabling debugging and
257 * modifying debug level states -- but this is typically done through a
258 * module parameter 'debug' along with a respective 'debug' debugfs file
259 * entry.
260 */
261enum ATH_DEBUG {
262	ATH_DBG_RESET		= 0x00000001,
263	ATH_DBG_QUEUE		= 0x00000002,
264	ATH_DBG_EEPROM		= 0x00000004,
265	ATH_DBG_CALIBRATE	= 0x00000008,
266	ATH_DBG_INTERRUPT	= 0x00000010,
267	ATH_DBG_REGULATORY	= 0x00000020,
268	ATH_DBG_ANI		= 0x00000040,
269	ATH_DBG_XMIT		= 0x00000080,
270	ATH_DBG_BEACON		= 0x00000100,
271	ATH_DBG_CONFIG		= 0x00000200,
272	ATH_DBG_FATAL		= 0x00000400,
273	ATH_DBG_PS		= 0x00000800,
274	ATH_DBG_BTCOEX		= 0x00001000,
275	ATH_DBG_WMI		= 0x00002000,
276	ATH_DBG_BSTUCK		= 0x00004000,
277	ATH_DBG_MCI		= 0x00008000,
278	ATH_DBG_DFS		= 0x00010000,
279	ATH_DBG_WOW		= 0x00020000,
280	ATH_DBG_CHAN_CTX	= 0x00040000,
281	ATH_DBG_DYNACK		= 0x00080000,
282	ATH_DBG_SPECTRAL_SCAN	= 0x00100000,
283	ATH_DBG_ANY		= 0xffffffff
284};
285
286#define ATH_DBG_DEFAULT (ATH_DBG_FATAL)
287#define ATH_DBG_MAX_LEN 512
288
289#ifdef CONFIG_ATH_DEBUG
290
291#define ath_dbg(common, dbg_mask, fmt, ...)				\
292do {									\
293	if ((common)->debug_mask & ATH_DBG_##dbg_mask)			\
294		ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__);	\
295} while (0)
296
297#define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
298#define ATH_DBG_WARN_ON_ONCE(foo) WARN_ON_ONCE(foo)
299
300#else
301
302static inline  __attribute__ ((format (printf, 3, 4)))
303void _ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
304	     const char *fmt, ...)
305{
306}
307#define ath_dbg(common, dbg_mask, fmt, ...)				\
308	_ath_dbg(common, ATH_DBG_##dbg_mask, fmt, ##__VA_ARGS__)
309
310#define ATH_DBG_WARN(foo, arg...) do {} while (0)
311#define ATH_DBG_WARN_ON_ONCE(foo) ({				\
312	int __ret_warn_once = !!(foo);				\
313	unlikely(__ret_warn_once);				\
314})
315
316#endif /* CONFIG_ATH_DEBUG */
317
318/** Returns string describing opmode, or NULL if unknown mode. */
319#ifdef CONFIG_ATH_DEBUG
320const char *ath_opmode_to_string(enum nl80211_iftype opmode);
321#else
322static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)
323{
324	return "UNKNOWN";
325}
326#endif
327
328extern const char *ath_bus_type_strings[];
329static inline const char *ath_bus_type_to_string(enum ath_bus_type bustype)
330{
331	return ath_bus_type_strings[bustype];
332}
333
334#endif /* ATH_H */