drivers/net/wireless/ath/ath9k/htc.h

   1 /*
   2  * Copyright (c) 2010 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_AUTO           = 0,
  50         HTC_MODE_11A            = 1,
  51         HTC_MODE_11B            = 2,
  52         HTC_MODE_11G            = 3,
  53         HTC_MODE_FH             = 4,
  54         HTC_MODE_TURBO_A        = 5,
  55         HTC_MODE_TURBO_G        = 6,
  56         HTC_MODE_11NA           = 7,
  57         HTC_MODE_11NG           = 8
  58 };
  59
  60 enum htc_opmode {
  61         HTC_M_STA       = 1,
  62         HTC_M_IBSS      = 0,
  63         HTC_M_AHDEMO    = 3,
  64         HTC_M_HOSTAP    = 6,
  65         HTC_M_MONITOR   = 8,
  66         HTC_M_WDS       = 2
  67 };
  68
  69 #define ATH9K_HTC_AMPDU  1
  70 #define ATH9K_HTC_NORMAL 2
  71 #define ATH9K_HTC_BEACON 3
  72 #define ATH9K_HTC_MGMT   4
  73
  74 #define ATH9K_HTC_TX_CTSONLY      0x1
  75 #define ATH9K_HTC_TX_RTSCTS       0x2
  76
  77 struct tx_frame_hdr {
  78         u8 data_type;
  79         u8 node_idx;
  80         u8 vif_idx;
  81         u8 tidno;
  82         __be32 flags; /* ATH9K_HTC_TX_* */
  83         u8 key_type;
  84         u8 keyix;
  85         u8 cookie;
  86         u8 pad;
  87 } __packed;
  88
  89 struct tx_mgmt_hdr {
  90         u8 node_idx;
  91         u8 vif_idx;
  92         u8 tidno;
  93         u8 flags;
  94         u8 key_type;
  95         u8 keyix;
  96         u8 cookie;
  97         u8 pad;
  98 } __packed;
  99
 100 struct tx_beacon_header {
 101         u8 vif_index;
 102         u8 len_changed;
 103         u16 rev;
 104 } __packed;
 105
 106 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
 107 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
 108
 109 struct ath9k_htc_cap_target {
 110         __be32 ampdu_limit;
 111         u8 ampdu_subframes;
 112         u8 enable_coex;
 113         u8 tx_chainmask;
 114         u8 pad;
 115 } __packed;
 116
 117 struct ath9k_htc_target_vif {
 118         u8 index;
 119         u8 opmode;
 120         u8 myaddr[ETH_ALEN];
 121         u8 ath_cap;
 122         __be16 rtsthreshold;
 123         u8 pad;
 124 } __packed;
 125
 126 #define ATH_HTC_STA_AUTH  0x0001
 127 #define ATH_HTC_STA_QOS   0x0002
 128 #define ATH_HTC_STA_ERP   0x0004
 129 #define ATH_HTC_STA_HT    0x0008
 130
 131 struct ath9k_htc_target_sta {
 132         u8 macaddr[ETH_ALEN];
 133         u8 bssid[ETH_ALEN];
 134         u8 sta_index;
 135         u8 vif_index;
 136         u8 is_vif_sta;
 137         __be16 flags; /* ATH_HTC_STA_* */
 138         __be16 htcap;
 139         __be16 maxampdu;
 140         u8 pad;
 141 } __packed;
 142
 143 struct ath9k_htc_target_aggr {
 144         u8 sta_index;
 145         u8 tidno;
 146         u8 aggr_enable;
 147         u8 padding;
 148 } __packed;
 149
 150 #define ATH_HTC_RATE_MAX 30
 151
 152 #define WLAN_RC_DS_FLAG  0x01
 153 #define WLAN_RC_40_FLAG  0x02
 154 #define WLAN_RC_SGI_FLAG 0x04
 155 #define WLAN_RC_HT_FLAG  0x08
 156
 157 struct ath9k_htc_rateset {
 158         u8 rs_nrates;
 159         u8 rs_rates[ATH_HTC_RATE_MAX];
 160 };
 161
 162 struct ath9k_htc_rate {
 163         struct ath9k_htc_rateset legacy_rates;
 164         struct ath9k_htc_rateset ht_rates;
 165 } __packed;
 166
 167 struct ath9k_htc_target_rate {
 168         u8 sta_index;
 169         u8 isnew;
 170         __be32 capflags;
 171         struct ath9k_htc_rate rates;
 172 };
 173
 174 struct ath9k_htc_target_rate_mask {
 175         u8 vif_index;
 176         u8 band;
 177         __be32 mask;
 178         u16 pad;
 179 } __packed;
 180
 181 struct ath9k_htc_target_int_stats {
 182         __be32 rx;
 183         __be32 rxorn;
 184         __be32 rxeol;
 185         __be32 txurn;
 186         __be32 txto;
 187         __be32 cst;
 188 } __packed;
 189
 190 struct ath9k_htc_target_tx_stats {
 191         __be32 xretries;
 192         __be32 fifoerr;
 193         __be32 filtered;
 194         __be32 timer_exp;
 195         __be32 shortretries;
 196         __be32 longretries;
 197         __be32 qnull;
 198         __be32 encap_fail;
 199         __be32 nobuf;
 200 } __packed;
 201
 202 struct ath9k_htc_target_rx_stats {
 203         __be32 nobuf;
 204         __be32 host_send;
 205         __be32 host_done;
 206 } __packed;
 207
 208 #define ATH9K_HTC_MAX_VIF 2
 209 #define ATH9K_HTC_MAX_BCN_VIF 2
 210
 211 #define INC_VIF(_priv, _type) do {              \
 212                 switch (_type) {                \
 213                 case NL80211_IFTYPE_STATION:    \
 214                         _priv->num_sta_vif++;   \
 215                         break;                  \
 216                 case NL80211_IFTYPE_ADHOC:      \
 217                         _priv->num_ibss_vif++;  \
 218                         break;                  \
 219                 case NL80211_IFTYPE_AP:         \
 220                         _priv->num_ap_vif++;    \
 221                         break;                  \
 222                 default:                        \
 223                         break;                  \
 224                 }                               \
 225         } while (0)
 226
 227 #define DEC_VIF(_priv, _type) do {              \
 228                 switch (_type) {                \
 229                 case NL80211_IFTYPE_STATION:    \
 230                         _priv->num_sta_vif--;   \
 231                         break;                  \
 232                 case NL80211_IFTYPE_ADHOC:      \
 233                         _priv->num_ibss_vif--;  \
 234                         break;                  \
 235                 case NL80211_IFTYPE_AP:         \
 236                         _priv->num_ap_vif--;    \
 237                         break;                  \
 238                 default:                        \
 239                         break;                  \
 240                 }                               \
 241         } while (0)
 242
 243 struct ath9k_htc_vif {
 244         u8 index;
 245         u16 seq_no;
 246         bool beacon_configured;
 247         int bslot;
 248         __le64 tsfadjust;
 249 };
 250
 251 struct ath9k_vif_iter_data {
 252         const u8 *hw_macaddr;
 253         u8 mask[ETH_ALEN];
 254 };
 255
 256 #define ATH9K_HTC_MAX_STA 8
 257 #define ATH9K_HTC_MAX_TID 8
 258
 259 enum tid_aggr_state {
 260         AGGR_STOP = 0,
 261         AGGR_PROGRESS,
 262         AGGR_START,
 263         AGGR_OPERATIONAL
 264 };
 265
 266 struct ath9k_htc_sta {
 267         u8 index;
 268         enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
 269 };
 270
 271 #define ATH9K_HTC_RXBUF 256
 272 #define HTC_RX_FRAME_HEADER_SIZE 40
 273
 274 struct ath9k_htc_rxbuf {
 275         bool in_process;
 276         struct sk_buff *skb;
 277         struct ath_htc_rx_status rxstatus;
 278         struct list_head list;
 279 };
 280
 281 struct ath9k_htc_rx {
 282         int last_rssi; /* FIXME: per-STA */
 283         struct list_head rxbuf;
 284         spinlock_t rxbuflock;
 285 };
 286
 287 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
 288 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 2500 /* ms */
 289 #define ATH9K_HTC_TX_RESERVE 10
 290 #define ATH9K_HTC_TX_TIMEOUT_COUNT 20
 291 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
 292
 293 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
 294 #define ATH9K_HTC_OP_TX_DRAIN       BIT(1)
 295
 296 struct ath9k_htc_tx {
 297         u8 flags;
 298         int queued_cnt;
 299         struct sk_buff_head mgmt_ep_queue;
 300         struct sk_buff_head cab_ep_queue;
 301         struct sk_buff_head data_be_queue;
 302         struct sk_buff_head data_bk_queue;
 303         struct sk_buff_head data_vi_queue;
 304         struct sk_buff_head data_vo_queue;
 305         struct sk_buff_head tx_failed;
 306         DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
 307         struct timer_list cleanup_timer;
 308         spinlock_t tx_lock;
 309 };
 310
 311 struct ath9k_htc_tx_ctl {
 312         u8 type; /* ATH9K_HTC_* */
 313         u8 epid;
 314         u8 txok;
 315         u8 sta_idx;
 316         unsigned long timestamp;
 317 };
 318
 319 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
 320 {
 321         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 322
 323         BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
 324                      IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
 325         return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
 326 }
 327
 328 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
 329
 330 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
 331 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
 332 #define CAB_STAT_INC   priv->debug.tx_stats.cab_queued++
 333
 334 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
 335
 336 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
 337                            struct ath_htc_rx_status *rxs);
 338
 339 struct ath_tx_stats {
 340         u32 buf_queued;
 341         u32 buf_completed;
 342         u32 skb_queued;
 343         u32 skb_success;
 344         u32 skb_failed;
 345         u32 cab_queued;
 346         u32 queue_stats[WME_NUM_AC];
 347 };
 348
 349 struct ath_rx_stats {
 350         u32 skb_allocated;
 351         u32 skb_completed;
 352         u32 skb_dropped;
 353         u32 err_crc;
 354         u32 err_decrypt_crc;
 355         u32 err_mic;
 356         u32 err_pre_delim;
 357         u32 err_post_delim;
 358         u32 err_decrypt_busy;
 359         u32 err_phy;
 360         u32 err_phy_stats[ATH9K_PHYERR_MAX];
 361 };
 362
 363 struct ath9k_debug {
 364         struct dentry *debugfs_phy;
 365         struct ath_tx_stats tx_stats;
 366         struct ath_rx_stats rx_stats;
 367 };
 368
 369 #else
 370
 371 #define TX_STAT_INC(c) do { } while (0)
 372 #define RX_STAT_INC(c) do { } while (0)
 373 #define CAB_STAT_INC   do { } while (0)
 374
 375 #define TX_QSTAT_INC(c) do { } while (0)
 376
 377 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
 378                                          struct ath_htc_rx_status *rxs)
 379 {
 380 }
 381
 382 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
 383
 384 #define ATH_LED_PIN_DEF             1
 385 #define ATH_LED_PIN_9287            10
 386 #define ATH_LED_PIN_9271            15
 387 #define ATH_LED_PIN_7010            12
 388
 389 #define BSTUCK_THRESHOLD 10
 390
 391 /*
 392  * Adjust these when the max. no of beaconing interfaces is
 393  * increased.
 394  */
 395 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
 396 #define MIN_SWBA_RESPONSE     10 /* in TUs */
 397
 398 struct htc_beacon_config {
 399         struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
 400         u16 beacon_interval;
 401         u16 dtim_period;
 402         u16 bmiss_timeout;
 403         u32 bmiss_cnt;
 404 };
 405
 406 struct ath_btcoex {
 407         u32 bt_priority_cnt;
 408         unsigned long bt_priority_time;
 409         int bt_stomp_type; /* Types of BT stomping */
 410         u32 btcoex_no_stomp;
 411         u32 btcoex_period;
 412         u32 btscan_no_stomp;
 413 };
 414
 415 void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv);
 416 void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv);
 417 void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv);
 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_ap_vif;
 454
 455         u16 op_flags;
 456         u16 curtxpow;
 457         u16 txpowlimit;
 458         u16 nvifs;
 459         u16 nstations;
 460         bool rearm_ani;
 461         bool reconfig_beacon;
 462         unsigned int rxfilter;
 463
 464         struct ath9k_hw_cal_data caldata;
 465         struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
 466
 467         spinlock_t beacon_lock;
 468         struct htc_beacon_config cur_beacon_conf;
 469
 470         struct ath9k_htc_rx rx;
 471         struct ath9k_htc_tx tx;
 472
 473         struct tasklet_struct swba_tasklet;
 474         struct tasklet_struct rx_tasklet;
 475         struct delayed_work ani_work;
 476         struct tasklet_struct tx_failed_tasklet;
 477         struct work_struct ps_work;
 478         struct work_struct fatal_work;
 479
 480         struct mutex htc_pm_lock;
 481         unsigned long ps_usecount;
 482         bool ps_enabled;
 483         bool ps_idle;
 484
 485 #ifdef CONFIG_MAC80211_LEDS
 486         enum led_brightness brightness;
 487         bool led_registered;
 488         char led_name[32];
 489         struct led_classdev led_cdev;
 490         struct work_struct led_work;
 491 #endif
 492
 493         int beaconq;
 494         int cabq;
 495         int hwq_map[WME_NUM_AC];
 496
 497         struct ath_btcoex btcoex;
 498         struct delayed_work coex_period_work;
 499         struct delayed_work duty_cycle_work;
 500 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
 501         struct ath9k_debug debug;
 502 #endif
 503         struct mutex mutex;
 504 };
 505
 506 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
 507 {
 508         common->bus_ops->read_cachesize(common, csz);
 509 }
 510
 511 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
 512
 513 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
 514                             struct ieee80211_vif *vif);
 515 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
 516                             struct ieee80211_vif *vif);
 517 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
 518                              struct ieee80211_vif *vif);
 519 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
 520 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
 521                              struct ieee80211_vif *vif);
 522 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
 523 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
 524                     struct wmi_event_swba *swba);
 525
 526 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
 527                     enum htc_endpoint_id ep_id);
 528 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
 529                     bool txok);
 530 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
 531                         enum htc_endpoint_id ep_id, bool txok);
 532
 533 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
 534                                 u8 enable_coex);
 535 void ath9k_htc_station_work(struct work_struct *work);
 536 void ath9k_htc_aggr_work(struct work_struct *work);
 537 void ath9k_htc_ani_work(struct work_struct *work);
 538 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
 539 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
 540
 541 int ath9k_tx_init(struct ath9k_htc_priv *priv);
 542 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
 543                        struct sk_buff *skb, u8 slot, bool is_cab);
 544 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
 545 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
 546 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
 547 int get_hw_qnum(u16 queue, int *hwq_map);
 548 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
 549                        struct ath9k_tx_queue_info *qinfo);
 550 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
 551 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
 552 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
 553 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
 554 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
 555 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
 556 void ath9k_htc_tx_failed(struct ath9k_htc_priv *priv);
 557 void ath9k_tx_failed_tasklet(unsigned long data);
 558 void ath9k_htc_tx_cleanup_timer(unsigned long data);
 559
 560 int ath9k_rx_init(struct ath9k_htc_priv *priv);
 561 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
 562 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
 563 void ath9k_rx_tasklet(unsigned long data);
 564 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
 565
 566 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
 567 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
 568 void ath9k_ps_work(struct work_struct *work);
 569 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
 570                         enum ath9k_power_mode mode);
 571
 572 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
 573 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
 574 void ath9k_htc_radio_enable(struct ieee80211_hw *hw);
 575 void ath9k_htc_radio_disable(struct ieee80211_hw *hw);
 576
 577 #ifdef CONFIG_MAC80211_LEDS
 578 void ath9k_init_leds(struct ath9k_htc_priv *priv);
 579 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
 580 void ath9k_led_work(struct work_struct *work);
 581 #else
 582 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
 583 {
 584 }
 585
 586 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
 587 {
 588 }
 589
 590 static inline void ath9k_led_work(struct work_struct *work)
 591 {
 592 }
 593 #endif
 594
 595 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
 596                            u16 devid, char *product, u32 drv_info);
 597 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
 598 #ifdef CONFIG_PM
 599 void ath9k_htc_suspend(struct htc_target *htc_handle);
 600 int ath9k_htc_resume(struct htc_target *htc_handle);
 601 #endif
 602 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
 603 int ath9k_htc_init_debug(struct ath_hw *ah);
 604 #else
 605 static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
 606 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
 607
 608 #endif /* HTC_H */