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

   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/etherdevice.h>
  26 #include <linux/leds.h>
  27 #include <linux/slab.h>
  28 #include <net/mac80211.h>
  29
  30 #include "common.h"
  31 #include "htc_hst.h"
  32 #include "hif_usb.h"
  33 #include "wmi.h"
  34
  35 #define ATH_STA_SHORT_CALINTERVAL 1000    /* 1 second */
  36 #define ATH_AP_SHORT_CALINTERVAL  100     /* 100 ms */
  37 #define ATH_ANI_POLLINTERVAL      100     /* 100 ms */
  38 #define ATH_LONG_CALINTERVAL      30000   /* 30 seconds */
  39 #define ATH_RESTART_CALINTERVAL   1200000 /* 20 minutes */
  40
  41 #define ATH_DEFAULT_BMISS_LIMIT 10
  42 #define IEEE80211_MS_TO_TU(x)   (((x) * 1000) / 1024)
  43 #define TSF_TO_TU(_h, _l) \
  44         ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
  45
  46 extern struct ieee80211_ops ath9k_htc_ops;
  47 extern int htc_modparam_nohwcrypt;
  48
  49 enum htc_phymode {
  50         HTC_MODE_11NA           = 0,
  51         HTC_MODE_11NG           = 1
  52 };
  53
  54 enum htc_opmode {
  55         HTC_M_STA       = 1,
  56         HTC_M_IBSS      = 0,
  57         HTC_M_AHDEMO    = 3,
  58         HTC_M_HOSTAP    = 6,
  59         HTC_M_MONITOR   = 8,
  60         HTC_M_WDS       = 2
  61 };
  62
  63 #define ATH9K_HTC_AMPDU  1
  64 #define ATH9K_HTC_NORMAL 2
  65 #define ATH9K_HTC_BEACON 3
  66 #define ATH9K_HTC_MGMT   4
  67
  68 #define ATH9K_HTC_TX_CTSONLY      0x1
  69 #define ATH9K_HTC_TX_RTSCTS       0x2
  70
  71 struct tx_frame_hdr {
  72         u8 data_type;
  73         u8 node_idx;
  74         u8 vif_idx;
  75         u8 tidno;
  76         __be32 flags; /* ATH9K_HTC_TX_* */
  77         u8 key_type;
  78         u8 keyix;
  79         u8 cookie;
  80         u8 pad;
  81 } __packed;
  82
  83 struct tx_mgmt_hdr {
  84         u8 node_idx;
  85         u8 vif_idx;
  86         u8 tidno;
  87         u8 flags;
  88         u8 key_type;
  89         u8 keyix;
  90         u8 cookie;
  91         u8 pad;
  92 } __packed;
  93
  94 struct tx_beacon_header {
  95         u8 vif_index;
  96         u8 len_changed;
  97         u16 rev;
  98 } __packed;
  99
 100 #define MAX_TX_AMPDU_SUBFRAMES_9271 17
 101 #define MAX_TX_AMPDU_SUBFRAMES_7010 22
 102
 103 struct ath9k_htc_cap_target {
 104         __be32 ampdu_limit;
 105         u8 ampdu_subframes;
 106         u8 enable_coex;
 107         u8 tx_chainmask;
 108         u8 pad;
 109 } __packed;
 110
 111 struct ath9k_htc_target_vif {
 112         u8 index;
 113         u8 opmode;
 114         u8 myaddr[ETH_ALEN];
 115         u8 ath_cap;
 116         __be16 rtsthreshold;
 117         u8 pad;
 118 } __packed;
 119
 120 struct ath9k_htc_target_sta {
 121         u8 macaddr[ETH_ALEN];
 122         u8 bssid[ETH_ALEN];
 123         u8 sta_index;
 124         u8 vif_index;
 125         u8 is_vif_sta;
 126         __be16 flags;
 127         __be16 htcap;
 128         __be16 maxampdu;
 129         u8 pad;
 130 } __packed;
 131
 132 struct ath9k_htc_target_aggr {
 133         u8 sta_index;
 134         u8 tidno;
 135         u8 aggr_enable;
 136         u8 padding;
 137 } __packed;
 138
 139 #define ATH_HTC_RATE_MAX 30
 140
 141 #define WLAN_RC_DS_FLAG  0x01
 142 #define WLAN_RC_40_FLAG  0x02
 143 #define WLAN_RC_SGI_FLAG 0x04
 144 #define WLAN_RC_HT_FLAG  0x08
 145
 146 struct ath9k_htc_rateset {
 147         u8 rs_nrates;
 148         u8 rs_rates[ATH_HTC_RATE_MAX];
 149 };
 150
 151 struct ath9k_htc_rate {
 152         struct ath9k_htc_rateset legacy_rates;
 153         struct ath9k_htc_rateset ht_rates;
 154 } __packed;
 155
 156 struct ath9k_htc_target_rate {
 157         u8 sta_index;
 158         u8 isnew;
 159         __be32 capflags;
 160         struct ath9k_htc_rate rates;
 161 };
 162
 163 struct ath9k_htc_target_rate_mask {
 164         u8 vif_index;
 165         u8 band;
 166         __be32 mask;
 167         u16 pad;
 168 } __packed;
 169
 170 struct ath9k_htc_target_int_stats {
 171         __be32 rx;
 172         __be32 rxorn;
 173         __be32 rxeol;
 174         __be32 txurn;
 175         __be32 txto;
 176         __be32 cst;
 177 } __packed;
 178
 179 struct ath9k_htc_target_tx_stats {
 180         __be32 xretries;
 181         __be32 fifoerr;
 182         __be32 filtered;
 183         __be32 timer_exp;
 184         __be32 shortretries;
 185         __be32 longretries;
 186         __be32 qnull;
 187         __be32 encap_fail;
 188         __be32 nobuf;
 189 } __packed;
 190
 191 struct ath9k_htc_target_rx_stats {
 192         __be32 nobuf;
 193         __be32 host_send;
 194         __be32 host_done;
 195 } __packed;
 196
 197 #define ATH9K_HTC_MAX_VIF 2
 198 #define ATH9K_HTC_MAX_BCN_VIF 2
 199
 200 #define INC_VIF(_priv, _type) do {              \
 201                 switch (_type) {                \
 202                 case NL80211_IFTYPE_STATION:    \
 203                         _priv->num_sta_vif++;   \
 204                         break;                  \
 205                 case NL80211_IFTYPE_ADHOC:      \
 206                         _priv->num_ibss_vif++;  \
 207                         break;                  \
 208                 case NL80211_IFTYPE_AP:         \
 209                         _priv->num_ap_vif++;    \
 210                         break;                  \
 211                 default:                        \
 212                         break;                  \
 213                 }                               \
 214         } while (0)
 215
 216 #define DEC_VIF(_priv, _type) do {              \
 217                 switch (_type) {                \
 218                 case NL80211_IFTYPE_STATION:    \
 219                         _priv->num_sta_vif--;   \
 220                         break;                  \
 221                 case NL80211_IFTYPE_ADHOC:      \
 222                         _priv->num_ibss_vif--;  \
 223                         break;                  \
 224                 case NL80211_IFTYPE_AP:         \
 225                         _priv->num_ap_vif--;    \
 226                         break;                  \
 227                 default:                        \
 228                         break;                  \
 229                 }                               \
 230         } while (0)
 231
 232 struct ath9k_htc_vif {
 233         u8 index;
 234         u16 seq_no;
 235         bool beacon_configured;
 236         int bslot;
 237         __le64 tsfadjust;
 238 };
 239
 240 struct ath9k_vif_iter_data {
 241         const u8 *hw_macaddr;
 242         u8 mask[ETH_ALEN];
 243 };
 244
 245 #define ATH9K_HTC_MAX_STA 8
 246 #define ATH9K_HTC_MAX_TID 8
 247
 248 enum tid_aggr_state {
 249         AGGR_STOP = 0,
 250         AGGR_PROGRESS,
 251         AGGR_START,
 252         AGGR_OPERATIONAL
 253 };
 254
 255 struct ath9k_htc_sta {
 256         u8 index;
 257         enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
 258 };
 259
 260 #define ATH9K_HTC_RXBUF 256
 261 #define HTC_RX_FRAME_HEADER_SIZE 40
 262
 263 struct ath9k_htc_rxbuf {
 264         bool in_process;
 265         struct sk_buff *skb;
 266         struct ath_htc_rx_status rxstatus;
 267         struct list_head list;
 268 };
 269
 270 struct ath9k_htc_rx {
 271         int last_rssi; /* FIXME: per-STA */
 272         struct list_head rxbuf;
 273         spinlock_t rxbuflock;
 274 };
 275
 276 #define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */
 277 #define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */
 278 #define ATH9K_HTC_TX_RESERVE 10
 279 #define ATH9K_HTC_TX_TIMEOUT_COUNT 40
 280 #define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)
 281
 282 #define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)
 283 #define ATH9K_HTC_OP_TX_DRAIN       BIT(1)
 284
 285 struct ath9k_htc_tx {
 286         u8 flags;
 287         int queued_cnt;
 288         struct sk_buff_head mgmt_ep_queue;
 289         struct sk_buff_head cab_ep_queue;
 290         struct sk_buff_head data_be_queue;
 291         struct sk_buff_head data_bk_queue;
 292         struct sk_buff_head data_vi_queue;
 293         struct sk_buff_head data_vo_queue;
 294         struct sk_buff_head tx_failed;
 295         DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
 296         struct timer_list cleanup_timer;
 297         spinlock_t tx_lock;
 298 };
 299
 300 struct ath9k_htc_tx_ctl {
 301         u8 type; /* ATH9K_HTC_* */
 302         u8 epid;
 303         u8 txok;
 304         u8 sta_idx;
 305         unsigned long timestamp;
 306 };
 307
 308 static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
 309 {
 310         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 311
 312         BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
 313                      IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
 314         return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
 315 }
 316
 317 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
 318
 319 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
 320 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
 321 #define CAB_STAT_INC   priv->debug.tx_stats.cab_queued++
 322
 323 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
 324
 325 void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
 326                            struct ath_htc_rx_status *rxs);
 327
 328 struct ath_tx_stats {
 329         u32 buf_queued;
 330         u32 buf_completed;
 331         u32 skb_queued;
 332         u32 skb_success;
 333         u32 skb_failed;
 334         u32 cab_queued;
 335         u32 queue_stats[IEEE80211_NUM_ACS];
 336 };
 337
 338 struct ath_rx_stats {
 339         u32 skb_allocated;
 340         u32 skb_completed;
 341         u32 skb_dropped;
 342         u32 err_crc;
 343         u32 err_decrypt_crc;
 344         u32 err_mic;
 345         u32 err_pre_delim;
 346         u32 err_post_delim;
 347         u32 err_decrypt_busy;
 348         u32 err_phy;
 349         u32 err_phy_stats[ATH9K_PHYERR_MAX];
 350 };
 351
 352 struct ath9k_debug {
 353         struct dentry *debugfs_phy;
 354         struct ath_tx_stats tx_stats;
 355         struct ath_rx_stats rx_stats;
 356 };
 357
 358 #else
 359
 360 #define TX_STAT_INC(c) do { } while (0)
 361 #define RX_STAT_INC(c) do { } while (0)
 362 #define CAB_STAT_INC   do { } while (0)
 363
 364 #define TX_QSTAT_INC(c) do { } while (0)
 365
 366 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
 367                                          struct ath_htc_rx_status *rxs)
 368 {
 369 }
 370
 371 #endif /* CONFIG_ATH9K_HTC_DEBUGFS */
 372
 373 #define ATH_LED_PIN_DEF             1
 374 #define ATH_LED_PIN_9287            10
 375 #define ATH_LED_PIN_9271            15
 376 #define ATH_LED_PIN_7010            12
 377
 378 #define BSTUCK_THRESHOLD 10
 379
 380 /*
 381  * Adjust these when the max. no of beaconing interfaces is
 382  * increased.
 383  */
 384 #define DEFAULT_SWBA_RESPONSE 40 /* in TUs */
 385 #define MIN_SWBA_RESPONSE     10 /* in TUs */
 386
 387 struct htc_beacon_config {
 388         struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];
 389         u16 beacon_interval;
 390         u16 dtim_period;
 391         u16 bmiss_timeout;
 392         u32 bmiss_cnt;
 393 };
 394
 395 struct ath_btcoex {
 396         u32 bt_priority_cnt;
 397         unsigned long bt_priority_time;
 398         int bt_stomp_type; /* Types of BT stomping */
 399         u32 btcoex_no_stomp;
 400         u32 btcoex_period;
 401         u32 btscan_no_stomp;
 402 };
 403
 404 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 405 void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product);
 406 void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv);
 407 void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv);
 408 #else
 409 static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
 410 {
 411 }
 412 static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
 413 {
 414 }
 415 static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
 416 {
 417 }
 418 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
 419
 420 #define OP_INVALID                 BIT(0)
 421 #define OP_SCANNING                BIT(1)
 422 #define OP_ENABLE_BEACON           BIT(2)
 423 #define OP_BT_PRIORITY_DETECTED    BIT(3)
 424 #define OP_BT_SCAN                 BIT(4)
 425 #define OP_ANI_RUNNING             BIT(5)
 426 #define OP_TSF_RESET               BIT(6)
 427
 428 struct ath9k_htc_priv {
 429         struct device *dev;
 430         struct ieee80211_hw *hw;
 431         struct ath_hw *ah;
 432         struct htc_target *htc;
 433         struct wmi *wmi;
 434
 435         u16 fw_version_major;
 436         u16 fw_version_minor;
 437
 438         enum htc_endpoint_id wmi_cmd_ep;
 439         enum htc_endpoint_id beacon_ep;
 440         enum htc_endpoint_id cab_ep;
 441         enum htc_endpoint_id uapsd_ep;
 442         enum htc_endpoint_id mgmt_ep;
 443         enum htc_endpoint_id data_be_ep;
 444         enum htc_endpoint_id data_bk_ep;
 445         enum htc_endpoint_id data_vi_ep;
 446         enum htc_endpoint_id data_vo_ep;
 447
 448         u8 vif_slot;
 449         u8 mon_vif_idx;
 450         u8 sta_slot;
 451         u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
 452         u8 num_ibss_vif;
 453         u8 num_sta_vif;
 454         u8 num_sta_assoc_vif;
 455         u8 num_ap_vif;
 456
 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         unsigned long op_flags;
 465
 466         struct ath9k_hw_cal_data caldata;
 467         struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
 468
 469         spinlock_t beacon_lock;
 470         struct htc_beacon_config cur_beacon_conf;
 471
 472         struct ath9k_htc_rx rx;
 473         struct ath9k_htc_tx tx;
 474
 475         struct tasklet_struct swba_tasklet;
 476         struct tasklet_struct rx_tasklet;
 477         struct delayed_work ani_work;
 478         struct tasklet_struct tx_failed_tasklet;
 479         struct work_struct ps_work;
 480         struct work_struct fatal_work;
 481
 482         struct mutex htc_pm_lock;
 483         unsigned long ps_usecount;
 484         bool ps_enabled;
 485         bool ps_idle;
 486
 487 #ifdef CONFIG_MAC80211_LEDS
 488         enum led_brightness brightness;
 489         bool led_registered;
 490         char led_name[32];
 491         struct led_classdev led_cdev;
 492         struct work_struct led_work;
 493 #endif
 494
 495         int beaconq;
 496         int cabq;
 497         int hwq_map[IEEE80211_NUM_ACS];
 498
 499 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 500         struct ath_btcoex btcoex;
 501 #endif
 502
 503         struct delayed_work coex_period_work;
 504         struct delayed_work duty_cycle_work;
 505 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
 506         struct ath9k_debug debug;
 507 #endif
 508         struct mutex mutex;
 509 };
 510
 511 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
 512 {
 513         common->bus_ops->read_cachesize(common, csz);
 514 }
 515
 516 void ath9k_htc_reset(struct ath9k_htc_priv *priv);
 517
 518 void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
 519                             struct ieee80211_vif *vif);
 520 void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
 521                             struct ieee80211_vif *vif);
 522 void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
 523                              struct ieee80211_vif *vif);
 524 void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
 525 void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
 526                              struct ieee80211_vif *vif);
 527 void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);
 528 void ath9k_htc_swba(struct ath9k_htc_priv *priv,
 529                     struct wmi_event_swba *swba);
 530
 531 void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
 532                     enum htc_endpoint_id ep_id);
 533 void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
 534                     bool txok);
 535 void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
 536                         enum htc_endpoint_id ep_id, bool txok);
 537
 538 int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,
 539                                 u8 enable_coex);
 540 void ath9k_htc_ani_work(struct work_struct *work);
 541 void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);
 542 void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
 543
 544 int ath9k_tx_init(struct ath9k_htc_priv *priv);
 545 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
 546                        struct ieee80211_sta *sta,
 547                        struct sk_buff *skb, u8 slot, bool is_cab);
 548 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
 549 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
 550 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
 551 int get_hw_qnum(u16 queue, int *hwq_map);
 552 int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
 553                        struct ath9k_tx_queue_info *qinfo);
 554 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
 555 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
 556 int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
 557 void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
 558 void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);
 559 void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);
 560 void ath9k_tx_failed_tasklet(unsigned long data);
 561 void ath9k_htc_tx_cleanup_timer(unsigned long data);
 562
 563 int ath9k_rx_init(struct ath9k_htc_priv *priv);
 564 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
 565 void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
 566 void ath9k_rx_tasklet(unsigned long data);
 567 u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
 568
 569 void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
 570 void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
 571 void ath9k_ps_work(struct work_struct *work);
 572 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
 573                         enum ath9k_power_mode mode);
 574
 575 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
 576 void ath9k_htc_rfkill_poll_state(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
 583 static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)
 584 {
 585 }
 586
 587 static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
 588 {
 589 }
 590
 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
 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 */