2 * Copyright (c) 2008-2009 Atheros Communications Inc.
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.
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.
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>
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).
34 #define ATH_KEYMAX 128 /* max key cache size we handle */
36 static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
40 unsigned int longcal_timer;
41 unsigned int shortcal_timer;
42 unsigned int resetcal_timer;
43 unsigned int checkani_timer;
44 struct timer_list timer;
47 struct ath_cycle_counters {
54 enum ath_device_state {
75 struct reg_dmn_pair_mapping {
81 struct ath_regulatory {
83 enum nl80211_dfs_regions region;
88 struct reg_dmn_pair_mapping *regpair;
92 ATH_CRYPT_CAP_CIPHER_AESCCM = BIT(0),
93 ATH_CRYPT_CAP_MIC_COMBINED = BIT(1),
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) */
109 ATH_CIPHER_AES_OCB = 1,
110 ATH_CIPHER_AES_CCM = 2,
118 * struct ath_ops - Register read/write operations
120 * @read: Register read
121 * @multi_read: Multiple register read
122 * @write: Register write
123 * @enable_write_buffer: Enable multiple register writes
124 * @write_flush: flush buffered register writes and disable buffering
127 unsigned int (*read)(void *, u32 reg_offset);
128 void (*multi_read)(void *, u32 *addr, u32 *val, u16 count);
129 void (*write)(void *, u32 val, u32 reg_offset);
130 void (*enable_write_buffer)(void *);
131 void (*write_flush) (void *);
132 u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr);
141 struct ieee80211_hw *hw;
143 enum ath_device_state state;
144 unsigned long op_flags;
150 u8 macaddr[ETH_ALEN];
151 u8 curbssid[ETH_ALEN];
152 u8 bssidmask[ETH_ALEN];
157 DECLARE_BITMAP(keymap, ATH_KEYMAX);
158 DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX);
159 DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX);
160 enum ath_crypt_caps crypt_caps;
162 unsigned int clockrate;
165 struct ath_cycle_counters cc_ani;
166 struct ath_cycle_counters cc_survey;
168 struct ath_regulatory regulatory;
169 struct ath_regulatory reg_world_copy;
170 const struct ath_ops *ops;
171 const struct ath_bus_ops *bus_ops;
175 bool bt_ant_diversity;
178 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
181 struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
184 bool ath_is_mybeacon(struct ath_common *common, struct ieee80211_hdr *hdr);
186 void ath_hw_setbssidmask(struct ath_common *common);
187 void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key);
188 int ath_key_config(struct ath_common *common,
189 struct ieee80211_vif *vif,
190 struct ieee80211_sta *sta,
191 struct ieee80211_key_conf *key);
192 bool ath_hw_keyreset(struct ath_common *common, u16 entry);
193 void ath_hw_cycle_counters_update(struct ath_common *common);
194 int32_t ath_hw_get_listen_time(struct ath_common *common);
197 void ath_printk(const char *level, const struct ath_common *common,
198 const char *fmt, ...);
200 #define ath_emerg(common, fmt, ...) \
201 ath_printk(KERN_EMERG, common, fmt, ##__VA_ARGS__)
202 #define ath_alert(common, fmt, ...) \
203 ath_printk(KERN_ALERT, common, fmt, ##__VA_ARGS__)
204 #define ath_crit(common, fmt, ...) \
205 ath_printk(KERN_CRIT, common, fmt, ##__VA_ARGS__)
206 #define ath_err(common, fmt, ...) \
207 ath_printk(KERN_ERR, common, fmt, ##__VA_ARGS__)
208 #define ath_warn(common, fmt, ...) \
209 ath_printk(KERN_WARNING, common, fmt, ##__VA_ARGS__)
210 #define ath_notice(common, fmt, ...) \
211 ath_printk(KERN_NOTICE, common, fmt, ##__VA_ARGS__)
212 #define ath_info(common, fmt, ...) \
213 ath_printk(KERN_INFO, common, fmt, ##__VA_ARGS__)
216 * enum ath_debug_level - atheros wireless debug level
218 * @ATH_DBG_RESET: reset processing
219 * @ATH_DBG_QUEUE: hardware queue management
220 * @ATH_DBG_EEPROM: eeprom processing
221 * @ATH_DBG_CALIBRATE: periodic calibration
222 * @ATH_DBG_INTERRUPT: interrupt processing
223 * @ATH_DBG_REGULATORY: regulatory processing
224 * @ATH_DBG_ANI: adaptive noise immunitive processing
225 * @ATH_DBG_XMIT: basic xmit operation
226 * @ATH_DBG_BEACON: beacon handling
227 * @ATH_DBG_CONFIG: configuration of the hardware
228 * @ATH_DBG_FATAL: fatal errors, this is the default, DBG_DEFAULT
229 * @ATH_DBG_PS: power save processing
230 * @ATH_DBG_HWTIMER: hardware timer handling
231 * @ATH_DBG_BTCOEX: bluetooth coexistance
232 * @ATH_DBG_BSTUCK: stuck beacons
233 * @ATH_DBG_MCI: Message Coexistence Interface, a private protocol
234 * used exclusively for WLAN-BT coexistence starting from
236 * @ATH_DBG_DFS: radar datection
237 * @ATH_DBG_WOW: Wake on Wireless
238 * @ATH_DBG_DYNACK: dynack handling
239 * @ATH_DBG_ANY: enable all debugging
241 * The debug level is used to control the amount and type of debugging output
242 * we want to see. Each driver has its own method for enabling debugging and
243 * modifying debug level states -- but this is typically done through a
244 * module parameter 'debug' along with a respective 'debug' debugfs file
248 ATH_DBG_RESET = 0x00000001,
249 ATH_DBG_QUEUE = 0x00000002,
250 ATH_DBG_EEPROM = 0x00000004,
251 ATH_DBG_CALIBRATE = 0x00000008,
252 ATH_DBG_INTERRUPT = 0x00000010,
253 ATH_DBG_REGULATORY = 0x00000020,
254 ATH_DBG_ANI = 0x00000040,
255 ATH_DBG_XMIT = 0x00000080,
256 ATH_DBG_BEACON = 0x00000100,
257 ATH_DBG_CONFIG = 0x00000200,
258 ATH_DBG_FATAL = 0x00000400,
259 ATH_DBG_PS = 0x00000800,
260 ATH_DBG_BTCOEX = 0x00001000,
261 ATH_DBG_WMI = 0x00002000,
262 ATH_DBG_BSTUCK = 0x00004000,
263 ATH_DBG_MCI = 0x00008000,
264 ATH_DBG_DFS = 0x00010000,
265 ATH_DBG_WOW = 0x00020000,
266 ATH_DBG_CHAN_CTX = 0x00040000,
267 ATH_DBG_DYNACK = 0x00080000,
268 ATH_DBG_ANY = 0xffffffff
271 #define ATH_DBG_DEFAULT (ATH_DBG_FATAL)
272 #define ATH_DBG_MAX_LEN 512
274 #ifdef CONFIG_ATH_DEBUG
276 #define ath_dbg(common, dbg_mask, fmt, ...) \
278 if ((common)->debug_mask & ATH_DBG_##dbg_mask) \
279 ath_printk(KERN_DEBUG, common, fmt, ##__VA_ARGS__); \
282 #define ATH_DBG_WARN(foo, arg...) WARN(foo, arg)
283 #define ATH_DBG_WARN_ON_ONCE(foo) WARN_ON_ONCE(foo)
287 static inline __attribute__ ((format (printf, 3, 4)))
288 void _ath_dbg(struct ath_common *common, enum ATH_DEBUG dbg_mask,
289 const char *fmt, ...)
292 #define ath_dbg(common, dbg_mask, fmt, ...) \
293 _ath_dbg(common, ATH_DBG_##dbg_mask, fmt, ##__VA_ARGS__)
295 #define ATH_DBG_WARN(foo, arg...) do {} while (0)
296 #define ATH_DBG_WARN_ON_ONCE(foo) ({ \
297 int __ret_warn_once = !!(foo); \
298 unlikely(__ret_warn_once); \
301 #endif /* CONFIG_ATH_DEBUG */
303 /** Returns string describing opmode, or NULL if unknown mode. */
304 #ifdef CONFIG_ATH_DEBUG
305 const char *ath_opmode_to_string(enum nl80211_iftype opmode);
307 static inline const char *ath_opmode_to_string(enum nl80211_iftype opmode)