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1 /*
2  * Copyright (c) 2010-2011 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 HTC_H
18 #define HTC_H
19 
20 #include <linux/module.h>
21 #include <linux/usb.h>
22 #include <linux/firmware.h>
23 #include <linux/skbuff.h>
24 #include <linux/netdevice.h>
25 #include <linux/leds.h>
26 #include <linux/slab.h>
27 #include <net/mac80211.h>
28 
29 #include "common.h"
30 #include "htc_hst.h"
31 #include "hif_usb.h"
32 #include "wmi.h"
33 
34 #define ATH_STA_SHORT_CALINTERVAL 1000    /* 1 second */
35 #define ATH_AP_SHORT_CALINTERVAL  100     /* 100 ms */
36 #define ATH_ANI_POLLINTERVAL      100     /* 100 ms */
37 #define ATH_LONG_CALINTERVAL      30000   /* 30 seconds */
38 #define ATH_RESTART_CALINTERVAL   1200000 /* 20 minutes */
39 
40 #define ATH_DEFAULT_BMISS_LIMIT 10
41 #define IEEE80211_MS_TO_TU(x)   (((x) * 1000) / 1024)
42 #define TSF_TO_TU(_h, _l) \
43 	((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
44 
45 extern struct ieee80211_ops ath9k_htc_ops;
46 extern int htc_modparam_nohwcrypt;
47 
48 enum htc_phymode {
49 	HTC_MODE_11NA		= 0,
50 	HTC_MODE_11NG		= 1
51 };
52 
53 enum htc_opmode {
54 	HTC_M_STA	= 1,
55 	HTC_M_IBSS	= 0,
56 	HTC_M_AHDEMO	= 3,
57 	HTC_M_HOSTAP	= 6,
58 	HTC_M_MONITOR	= 8,
59 	HTC_M_WDS	= 2
60 };
61 
62 #define ATH9K_HTC_AMPDU  1
63 #define ATH9K_HTC_NORMAL 2
64 #define ATH9K_HTC_BEACON 3
65 #define ATH9K_HTC_MGMT   4
66 
67 #define ATH9K_HTC_TX_CTSONLY      0x1
68 #define ATH9K_HTC_TX_RTSCTS       0x2
69 
70 struct tx_frame_hdr {
71 	u8 data_type;
72 	u8 node_idx;
73 	u8 vif_idx;
74 	u8 tidno;
75 	__be32 flags; /* ATH9K_HTC_TX_* */
76 	u8 key_type;
77 	u8 keyix;
78 	u8 cookie;
79 	u8 pad;
80 } __packed;
81 
82 struct tx_mgmt_hdr {
83 	u8 node_idx;
84 	u8 vif_idx;
85 	u8 tidno;
86 	u8 flags;
87 	u8 key_type;
88 	u8 keyix;
89 	u8 cookie;
90 	u8 pad;
91 } __packed;
92 
93 struct tx_beacon_header {
94 	u8 vif_index;
95 	u8 len_changed;
96 	u16 rev;
97 } __packed;
98 
99 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
100 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
101 
102 struct ath9k_htc_cap_target {
103 	__be32 ampdu_limit;
104 	u8 ampdu_subframes;
105 	u8 enable_coex;
106 	u8 tx_chainmask;
107 	u8 pad;
108 } __packed;
109 
110 struct ath9k_htc_target_vif {
111 	u8 index;
112 	u8 opmode;
113 	u8 myaddr[ETH_ALEN];
114 	u8 ath_cap;
115 	__be16 rtsthreshold;
116 	u8 pad;
117 } __packed;
118 
119 struct ath9k_htc_target_sta {
120 	u8 macaddr[ETH_ALEN];
121 	u8 bssid[ETH_ALEN];
122 	u8 sta_index;
123 	u8 vif_index;
124 	u8 is_vif_sta;
125 	__be16 flags;
126 	__be16 htcap;
127 	__be16 maxampdu;
128 	u8 pad;
129 } __packed;
130 
131 struct ath9k_htc_target_aggr {
132 	u8 sta_index;
133 	u8 tidno;
134 	u8 aggr_enable;
135 	u8 padding;
136 } __packed;
137 
138 #define ATH_HTC_RATE_MAX 30
139 
140 #define WLAN_RC_DS_FLAG  0x01
141 #define WLAN_RC_40_FLAG  0x02
142 #define WLAN_RC_SGI_FLAG 0x04
143 #define WLAN_RC_HT_FLAG  0x08
144 
145 struct ath9k_htc_rateset {
146 	u8 rs_nrates;
147 	u8 rs_rates[ATH_HTC_RATE_MAX];
148 };
149 
150 struct ath9k_htc_rate {
151 	struct ath9k_htc_rateset legacy_rates;
152 	struct ath9k_htc_rateset ht_rates;
153 } __packed;
154 
155 struct ath9k_htc_target_rate {
156 	u8 sta_index;
157 	u8 isnew;
158 	__be32 capflags;
159 	struct ath9k_htc_rate rates;
160 };
161 
162 struct ath9k_htc_target_rate_mask {
163 	u8 vif_index;
164 	u8 band;
165 	__be32 mask;
166 	u16 pad;
167 } __packed;
168 
169 struct ath9k_htc_target_int_stats {
170 	__be32 rx;
171 	__be32 rxorn;
172 	__be32 rxeol;
173 	__be32 txurn;
174 	__be32 txto;
175 	__be32 cst;
176 } __packed;
177 
178 struct ath9k_htc_target_tx_stats {
179 	__be32 xretries;
180 	__be32 fifoerr;
181 	__be32 filtered;
182 	__be32 timer_exp;
183 	__be32 shortretries;
184 	__be32 longretries;
185 	__be32 qnull;
186 	__be32 encap_fail;
187 	__be32 nobuf;
188 } __packed;
189 
190 struct ath9k_htc_target_rx_stats {
191 	__be32 nobuf;
192 	__be32 host_send;
193 	__be32 host_done;
194 } __packed;
195 
196 #define ATH9K_HTC_MAX_VIF 2
197 #define ATH9K_HTC_MAX_BCN_VIF 2
198 
199 #define INC_VIF(_priv, _type) do {		\
200 		switch (_type) {		\
201 		case NL80211_IFTYPE_STATION:	\
202 			_priv->num_sta_vif++;	\
203 			break;			\
204 		case NL80211_IFTYPE_ADHOC:	\
205 			_priv->num_ibss_vif++;	\
206 			break;			\
207 		case NL80211_IFTYPE_AP:		\
208 			_priv->num_ap_vif++;	\
209 			break;			\
210 		default:			\
211 			break;			\
212 		}				\
213 	} while (0)
214 
215 #define DEC_VIF(_priv, _type) do {		\
216 		switch (_type) {		\
217 		case NL80211_IFTYPE_STATION:	\
218 			_priv->num_sta_vif--;	\
219 			break;			\
220 		case NL80211_IFTYPE_ADHOC:	\
221 			_priv->num_ibss_vif--;	\
222 			break;			\
223 		case NL80211_IFTYPE_AP:		\
224 			_priv->num_ap_vif--;	\
225 			break;			\
226 		default:			\
227 			break;			\
228 		}				\
229 	} while (0)
230 
231 struct ath9k_htc_vif {
232 	u8 index;
233 	u16 seq_no;
234 	bool beacon_configured;
235 	int bslot;
236 	__le64 tsfadjust;
237 };
238 
239 struct ath9k_vif_iter_data {
240 	const u8 *hw_macaddr;
241 	u8 mask[ETH_ALEN];
242 };
243 
244 #define ATH9K_HTC_MAX_STA 8
245 #define ATH9K_HTC_MAX_TID 8
246 
247 enum tid_aggr_state {
248 	AGGR_STOP = 0,
249 	AGGR_PROGRESS,
250 	AGGR_START,
251 	AGGR_OPERATIONAL
252 };
253 
254 struct ath9k_htc_sta {
255 	u8 index;
256 	enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
257 };
258 
259 #define ATH9K_HTC_RXBUF 256
260 #define HTC_RX_FRAME_HEADER_SIZE 40
261 
262 struct ath9k_htc_rxbuf {
263 	bool in_process;
264 	struct sk_buff *skb;
265 	struct ath_htc_rx_status rxstatus;
266 	struct list_head list;
267 };
268 
269 struct ath9k_htc_rx {
270 	int last_rssi; /* FIXME: per-STA */
271 	struct list_head rxbuf;
272 	spinlock_t rxbuflock;
273 };
274 
275 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
276 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */
277 #define ATH9K_HTC_TX_RESERVE 10
278 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
279 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
280 
281 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
282 #define ATH9K_HTC_OP_TX_DRAIN       BIT(1)
283 
284 struct ath9k_htc_tx {
285 	u8 flags;
286 	int queued_cnt;
287 	struct sk_buff_head mgmt_ep_queue;
288 	struct sk_buff_head cab_ep_queue;
289 	struct sk_buff_head data_be_queue;
290 	struct sk_buff_head data_bk_queue;
291 	struct sk_buff_head data_vi_queue;
292 	struct sk_buff_head data_vo_queue;
293 	struct sk_buff_head tx_failed;
294 	DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
295 	struct timer_list cleanup_timer;
296 	spinlock_t tx_lock;
297 };
298 
299 struct ath9k_htc_tx_ctl {
300 	u8 type; /* ATH9K_HTC_* */
301 	u8 epid;
302 	u8 txok;
303 	u8 sta_idx;
304 	unsigned long timestamp;
305 };
306 
HTC_SKB_CB(struct sk_buff * skb)307 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
308 {
309 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
310 
311 	BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
312 		     IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
313 	return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
314 }
315 
316 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
317 
318 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
319 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
320 #define CAB_STAT_INC   priv->debug.tx_stats.cab_queued++
321 
322 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
323 
324 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
325 			   struct ath_htc_rx_status *rxs);
326 
327 struct ath_tx_stats {
328 	u32 buf_queued;
329 	u32 buf_completed;
330 	u32 skb_queued;
331 	u32 skb_success;
332 	u32 skb_failed;
333 	u32 cab_queued;
334 	u32 queue_stats[WME_NUM_AC];
335 };
336 
337 struct ath_rx_stats {
338 	u32 skb_allocated;
339 	u32 skb_completed;
340 	u32 skb_dropped;
341 	u32 err_crc;
342 	u32 err_decrypt_crc;
343 	u32 err_mic;
344 	u32 err_pre_delim;
345 	u32 err_post_delim;
346 	u32 err_decrypt_busy;
347 	u32 err_phy;
348 	u32 err_phy_stats[ATH9K_PHYERR_MAX];
349 };
350 
351 struct ath9k_debug {
352 	struct dentry *debugfs_phy;
353 	struct ath_tx_stats tx_stats;
354 	struct ath_rx_stats rx_stats;
355 };
356 
357 #else
358 
359 #define TX_STAT_INC(c) do { } while (0)
360 #define RX_STAT_INC(c) do { } while (0)
361 #define CAB_STAT_INC   do { } while (0)
362 
363 #define TX_QSTAT_INC(c) do { } while (0)
364 
ath9k_htc_err_stat_rx(struct ath9k_htc_priv * priv,struct ath_htc_rx_status * rxs)365 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
366 					 struct ath_htc_rx_status *rxs)
367 {
368 }
369 
370 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
371 
372 #define ATH_LED_PIN_DEF             1
373 #define ATH_LED_PIN_9287            10
374 #define ATH_LED_PIN_9271            15
375 #define ATH_LED_PIN_7010            12
376 
377 #define BSTUCK_THRESHOLD 10
378 
379 /*
380  * Adjust these when the max. no of beaconing interfaces is
381  * increased.
382  */
383 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
384 #define MIN_SWBA_RESPONSE     10 /* in TUs */
385 
386 struct htc_beacon_config {
387 	struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
388 	u16 beacon_interval;
389 	u16 dtim_period;
390 	u16 bmiss_timeout;
391 	u32 bmiss_cnt;
392 };
393 
394 struct ath_btcoex {
395 	u32 bt_priority_cnt;
396 	unsigned long bt_priority_time;
397 	int bt_stomp_type; /* Types of BT stomping */
398 	u32 btcoex_no_stomp;
399 	u32 btcoex_period;
400 	u32 btscan_no_stomp;
401 };
402 
403 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
404 void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product);
405 void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv);
406 void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv);
407 #else
ath9k_htc_init_btcoex(struct ath9k_htc_priv * priv,char * product)408 static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
409 {
410 }
ath9k_htc_start_btcoex(struct ath9k_htc_priv * priv)411 static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
412 {
413 }
ath9k_htc_stop_btcoex(struct ath9k_htc_priv * priv)414 static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
415 {
416 }
417 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
418 
419 #define OP_INVALID		   BIT(0)
420 #define OP_SCANNING		   BIT(1)
421 #define OP_ENABLE_BEACON           BIT(2)
422 #define OP_BT_PRIORITY_DETECTED    BIT(3)
423 #define OP_BT_SCAN                 BIT(4)
424 #define OP_ANI_RUNNING             BIT(5)
425 #define OP_TSF_RESET               BIT(6)
426 
427 struct ath9k_htc_priv {
428 	struct device *dev;
429 	struct ieee80211_hw *hw;
430 	struct ath_hw *ah;
431 	struct htc_target *htc;
432 	struct wmi *wmi;
433 
434 	u16 fw_version_major;
435 	u16 fw_version_minor;
436 
437 	enum htc_endpoint_id wmi_cmd_ep;
438 	enum htc_endpoint_id beacon_ep;
439 	enum htc_endpoint_id cab_ep;
440 	enum htc_endpoint_id uapsd_ep;
441 	enum htc_endpoint_id mgmt_ep;
442 	enum htc_endpoint_id data_be_ep;
443 	enum htc_endpoint_id data_bk_ep;
444 	enum htc_endpoint_id data_vi_ep;
445 	enum htc_endpoint_id data_vo_ep;
446 
447 	u8 vif_slot;
448 	u8 mon_vif_idx;
449 	u8 sta_slot;
450 	u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
451 	u8 num_ibss_vif;
452 	u8 num_sta_vif;
453 	u8 num_sta_assoc_vif;
454 	u8 num_ap_vif;
455 
456 	u16 op_flags;
457 	u16 curtxpow;
458 	u16 txpowlimit;
459 	u16 nvifs;
460 	u16 nstations;
461 	bool rearm_ani;
462 	bool reconfig_beacon;
463 	unsigned int rxfilter;
464 
465 	struct ath9k_hw_cal_data caldata;
466 	struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
467 
468 	spinlock_t beacon_lock;
469 	struct htc_beacon_config cur_beacon_conf;
470 
471 	struct ath9k_htc_rx rx;
472 	struct ath9k_htc_tx tx;
473 
474 	struct tasklet_struct swba_tasklet;
475 	struct tasklet_struct rx_tasklet;
476 	struct delayed_work ani_work;
477 	struct tasklet_struct tx_failed_tasklet;
478 	struct work_struct ps_work;
479 	struct work_struct fatal_work;
480 
481 	struct mutex htc_pm_lock;
482 	unsigned long ps_usecount;
483 	bool ps_enabled;
484 	bool ps_idle;
485 
486 #ifdef CONFIG_MAC80211_LEDS
487 	enum led_brightness brightness;
488 	bool led_registered;
489 	char led_name[32];
490 	struct led_classdev led_cdev;
491 	struct work_struct led_work;
492 #endif
493 
494 	int beaconq;
495 	int cabq;
496 	int hwq_map[WME_NUM_AC];
497 
498 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
499 	struct ath_btcoex btcoex;
500 #endif
501 
502 	struct delayed_work coex_period_work;
503 	struct delayed_work duty_cycle_work;
504 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
505 	struct ath9k_debug debug;
506 #endif
507 	struct mutex mutex;
508 };
509 
ath_read_cachesize(struct ath_common * common,int * csz)510 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
511 {
512 	common->bus_ops->read_cachesize(common, csz);
513 }
514 
515 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
516 
517 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
518 			    struct ieee80211_vif *vif);
519 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
520 			    struct ieee80211_vif *vif);
521 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
522 			     struct ieee80211_vif *vif);
523 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
524 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
525 			     struct ieee80211_vif *vif);
526 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
527 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
528 		    struct wmi_event_swba *swba);
529 
530 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
531 		    enum htc_endpoint_id ep_id);
532 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
533 		    bool txok);
534 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
535 			enum htc_endpoint_id ep_id, bool txok);
536 
537 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
538 				u8 enable_coex);
539 void ath9k_htc_ani_work(struct work_struct *work);
540 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
541 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
542 
543 int ath9k_tx_init(struct ath9k_htc_priv *priv);
544 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
545 		       struct sk_buff *skb, u8 slot, bool is_cab);
546 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
547 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
548 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
549 int get_hw_qnum(u16 queue, int *hwq_map);
550 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
551 		       struct ath9k_tx_queue_info *qinfo);
552 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
553 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
554 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
555 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
556 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
557 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
558 void ath9k_tx_failed_tasklet(unsigned long data);
559 void ath9k_htc_tx_cleanup_timer(unsigned long data);
560 
561 int ath9k_rx_init(struct ath9k_htc_priv *priv);
562 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
563 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
564 void ath9k_rx_tasklet(unsigned long data);
565 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
566 
567 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
568 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
569 void ath9k_ps_work(struct work_struct *work);
570 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
571 			enum ath9k_power_mode mode);
572 
573 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
574 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
575 void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
576 void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
577 
578 #ifdef CONFIG_MAC80211_LEDS
579 void ath9k_init_leds(struct ath9k_htc_priv *priv);
580 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
581 void ath9k_led_work(struct work_struct *work);
582 #else
ath9k_init_leds(struct ath9k_htc_priv * priv)583 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
584 {
585 }
586 
ath9k_deinit_leds(struct ath9k_htc_priv * priv)587 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
588 {
589 }
590 
ath9k_led_work(struct work_struct * work)591 static inline void ath9k_led_work(struct work_struct *work)
592 {
593 }
594 #endif
595 
596 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
597 			   u16 devid, char *product, u32 drv_info);
598 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
599 #ifdef CONFIG_PM
600 void ath9k_htc_suspend(struct htc_target *htc_handle);
601 int ath9k_htc_resume(struct htc_target *htc_handle);
602 #endif
603 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
604 int ath9k_htc_init_debug(struct ath_hw *ah);
605 #else
ath9k_htc_init_debug(struct ath_hw * ah)606 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
607 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
608 
609 #endif /* HTC_H */
610