drivers/net/wireless/ath/ath6kl/core.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 CORE_H
  18 #define CORE_H
  19
  20 #include <linux/etherdevice.h>
  21 #include <linux/rtnetlink.h>
  22 #include <linux/firmware.h>
  23 #include <linux/sched.h>
  24 #include <net/cfg80211.h>
  25 #include "htc.h"
  26 #include "wmi.h"
  27 #include "bmi.h"
  28
  29 #define MAX_ATH6KL                        1
  30 #define ATH6KL_MAX_RX_BUFFERS             16
  31 #define ATH6KL_BUFFER_SIZE                1664
  32 #define ATH6KL_MAX_AMSDU_RX_BUFFERS       4
  33 #define ATH6KL_AMSDU_REFILL_THRESHOLD     3
  34 #define ATH6KL_AMSDU_BUFFER_SIZE     (WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH + 128)
  35 #define MAX_MSDU_SUBFRAME_PAYLOAD_LEN   1508
  36 #define MIN_MSDU_SUBFRAME_PAYLOAD_LEN   46
  37
  38 #define USER_SAVEDKEYS_STAT_INIT     0
  39 #define USER_SAVEDKEYS_STAT_RUN      1
  40
  41 #define ATH6KL_TX_TIMEOUT      10
  42 #define ATH6KL_MAX_ENDPOINTS   4
  43 #define MAX_NODE_NUM           15
  44
  45 /* MAX_HI_COOKIE_NUM are reserved for high priority traffic */
  46 #define MAX_DEF_COOKIE_NUM                180
  47 #define MAX_HI_COOKIE_NUM                 18    /* 10% of MAX_COOKIE_NUM */
  48 #define MAX_COOKIE_NUM                 (MAX_DEF_COOKIE_NUM + MAX_HI_COOKIE_NUM)
  49
  50 #define MAX_DEFAULT_SEND_QUEUE_DEPTH      (MAX_DEF_COOKIE_NUM / WMM_NUM_AC)
  51
  52 #define DISCON_TIMER_INTVAL               10000  /* in msec */
  53 #define A_DEFAULT_LISTEN_INTERVAL         100
  54 #define A_MAX_WOW_LISTEN_INTERVAL         1000
  55
  56 /* AR6003 1.0 definitions */
  57 #define AR6003_REV1_VERSION                 0x300002ba
  58
  59 /* AR6003 2.0 definitions */
  60 #define AR6003_REV2_VERSION                 0x30000384
  61 #define AR6003_REV2_PATCH_DOWNLOAD_ADDRESS  0x57e910
  62 #define AR6003_REV2_OTP_FILE                "ath6k/AR6003/hw2.0/otp.bin.z77"
  63 #define AR6003_REV2_FIRMWARE_FILE           "ath6k/AR6003/hw2.0/athwlan.bin.z77"
  64 #define AR6003_REV2_PATCH_FILE              "ath6k/AR6003/hw2.0/data.patch.bin"
  65 #define AR6003_REV2_BOARD_DATA_FILE         "ath6k/AR6003/hw2.0/bdata.bin"
  66 #define AR6003_REV2_DEFAULT_BOARD_DATA_FILE "ath6k/AR6003/hw2.0/bdata.SD31.bin"
  67
  68 /* AR6003 3.0 definitions */
  69 #define AR6003_REV3_VERSION                 0x30000582
  70 #define AR6003_REV3_OTP_FILE                "ath6k/AR6003/hw2.1.1/otp.bin"
  71 #define AR6003_REV3_FIRMWARE_FILE           "ath6k/AR6003/hw2.1.1/athwlan.bin"
  72 #define AR6003_REV3_PATCH_FILE            "ath6k/AR6003/hw2.1.1/data.patch.bin"
  73 #define AR6003_REV3_BOARD_DATA_FILE       "ath6k/AR6003/hw2.1.1/bdata.bin"
  74 #define AR6003_REV3_DEFAULT_BOARD_DATA_FILE     \
  75         "ath6k/AR6003/hw2.1.1/bdata.SD31.bin"
  76
  77 /* Per STA data, used in AP mode */
  78 #define STA_PS_AWAKE            BIT(0)
  79 #define STA_PS_SLEEP            BIT(1)
  80 #define STA_PS_POLLED           BIT(2)
  81
  82 /* HTC TX packet tagging definitions */
  83 #define ATH6KL_CONTROL_PKT_TAG    HTC_TX_PACKET_TAG_USER_DEFINED
  84 #define ATH6KL_DATA_PKT_TAG       (ATH6KL_CONTROL_PKT_TAG + 1)
  85
  86 #define AR6003_CUST_DATA_SIZE 16
  87
  88 #define AGGR_WIN_IDX(x, y)          ((x) % (y))
  89 #define AGGR_INCR_IDX(x, y)         AGGR_WIN_IDX(((x) + 1), (y))
  90 #define AGGR_DCRM_IDX(x, y)         AGGR_WIN_IDX(((x) - 1), (y))
  91 #define ATH6KL_MAX_SEQ_NO               0xFFF
  92 #define ATH6KL_NEXT_SEQ_NO(x)           (((x) + 1) & ATH6KL_MAX_SEQ_NO)
  93
  94 #define NUM_OF_TIDS         8
  95 #define AGGR_SZ_DEFAULT     8
  96
  97 #define AGGR_WIN_SZ_MIN     2
  98 #define AGGR_WIN_SZ_MAX     8
  99
 100 #define TID_WINDOW_SZ(_x)   ((_x) << 1)
 101
 102 #define AGGR_NUM_OF_FREE_NETBUFS    16
 103
 104 #define AGGR_RX_TIMEOUT     400 /* in ms */
 105
 106 #define WMI_TIMEOUT (2 * HZ)
 107
 108 #define MBOX_YIELD_LIMIT 99
 109
 110 /* configuration lags */
 111 /*
 112  * ATH6KL_CONF_IGNORE_ERP_BARKER: Ignore the barker premable in
 113  * ERP IE of beacon to determine the short premable support when
 114  * sending (Re)Assoc req.
 115  * ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN: Don't send the power
 116  * module state transition failure events which happen during
 117  * scan, to the host.
 118  */
 119 #define ATH6KL_CONF_IGNORE_ERP_BARKER           BIT(0)
 120 #define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN  BIT(1)
 121 #define ATH6KL_CONF_ENABLE_11N                  BIT(2)
 122 #define ATH6KL_CONF_ENABLE_TX_BURST             BIT(3)
 123
 124 enum wlan_low_pwr_state {
 125         WLAN_POWER_STATE_ON,
 126         WLAN_POWER_STATE_CUT_PWR,
 127         WLAN_POWER_STATE_DEEP_SLEEP,
 128         WLAN_POWER_STATE_WOW
 129 };
 130
 131 enum sme_state {
 132         SME_DISCONNECTED,
 133         SME_CONNECTING,
 134         SME_CONNECTED
 135 };
 136
 137 struct skb_hold_q {
 138         struct sk_buff *skb;
 139         bool is_amsdu;
 140         u16 seq_no;
 141 };
 142
 143 struct rxtid {
 144         bool aggr;
 145         bool progress;
 146         bool timer_mon;
 147         u16 win_sz;
 148         u16 seq_next;
 149         u32 hold_q_sz;
 150         struct skb_hold_q *hold_q;
 151         struct sk_buff_head q;
 152         spinlock_t lock;
 153 };
 154
 155 struct rxtid_stats {
 156         u32 num_into_aggr;
 157         u32 num_dups;
 158         u32 num_oow;
 159         u32 num_mpdu;
 160         u32 num_amsdu;
 161         u32 num_delivered;
 162         u32 num_timeouts;
 163         u32 num_hole;
 164         u32 num_bar;
 165 };
 166
 167 struct aggr_info {
 168         u8 aggr_sz;
 169         u8 timer_scheduled;
 170         struct timer_list timer;
 171         struct net_device *dev;
 172         struct rxtid rx_tid[NUM_OF_TIDS];
 173         struct sk_buff_head free_q;
 174         struct rxtid_stats stat[NUM_OF_TIDS];
 175 };
 176
 177 struct ath6kl_wep_key {
 178         u8 key_index;
 179         u8 key_len;
 180         u8 key[64];
 181 };
 182
 183 #define ATH6KL_KEY_SEQ_LEN 8
 184
 185 struct ath6kl_key {
 186         u8 key[WLAN_MAX_KEY_LEN];
 187         u8 key_len;
 188         u8 seq[ATH6KL_KEY_SEQ_LEN];
 189         u8 seq_len;
 190         u32 cipher;
 191 };
 192
 193 struct ath6kl_node_mapping {
 194         u8 mac_addr[ETH_ALEN];
 195         u8 ep_id;
 196         u8 tx_pend;
 197 };
 198
 199 struct ath6kl_cookie {
 200         struct sk_buff *skb;
 201         u32 map_no;
 202         struct htc_packet htc_pkt;
 203         struct ath6kl_cookie *arc_list_next;
 204 };
 205
 206 struct ath6kl_sta {
 207         u16 sta_flags;
 208         u8 mac[ETH_ALEN];
 209         u8 aid;
 210         u8 keymgmt;
 211         u8 ucipher;
 212         u8 auth;
 213         u8 wpa_ie[ATH6KL_MAX_IE];
 214         struct sk_buff_head psq;
 215         spinlock_t psq_lock;
 216 };
 217
 218 struct ath6kl_version {
 219         u32 target_ver;
 220         u32 wlan_ver;
 221         u32 abi_ver;
 222 };
 223
 224 struct ath6kl_bmi {
 225         u32 cmd_credits;
 226         bool done_sent;
 227         u8 *cmd_buf;
 228 };
 229
 230 struct target_stats {
 231         u64 tx_pkt;
 232         u64 tx_byte;
 233         u64 tx_ucast_pkt;
 234         u64 tx_ucast_byte;
 235         u64 tx_mcast_pkt;
 236         u64 tx_mcast_byte;
 237         u64 tx_bcast_pkt;
 238         u64 tx_bcast_byte;
 239         u64 tx_rts_success_cnt;
 240         u64 tx_pkt_per_ac[4];
 241
 242         u64 tx_err;
 243         u64 tx_fail_cnt;
 244         u64 tx_retry_cnt;
 245         u64 tx_mult_retry_cnt;
 246         u64 tx_rts_fail_cnt;
 247
 248         u64 rx_pkt;
 249         u64 rx_byte;
 250         u64 rx_ucast_pkt;
 251         u64 rx_ucast_byte;
 252         u64 rx_mcast_pkt;
 253         u64 rx_mcast_byte;
 254         u64 rx_bcast_pkt;
 255         u64 rx_bcast_byte;
 256         u64 rx_frgment_pkt;
 257
 258         u64 rx_err;
 259         u64 rx_crc_err;
 260         u64 rx_key_cache_miss;
 261         u64 rx_decrypt_err;
 262         u64 rx_dupl_frame;
 263
 264         u64 tkip_local_mic_fail;
 265         u64 tkip_cnter_measures_invoked;
 266         u64 tkip_replays;
 267         u64 tkip_fmt_err;
 268         u64 ccmp_fmt_err;
 269         u64 ccmp_replays;
 270
 271         u64 pwr_save_fail_cnt;
 272
 273         u64 cs_bmiss_cnt;
 274         u64 cs_low_rssi_cnt;
 275         u64 cs_connect_cnt;
 276         u64 cs_discon_cnt;
 277
 278         s32 tx_ucast_rate;
 279         s32 rx_ucast_rate;
 280
 281         u32 lq_val;
 282
 283         u32 wow_pkt_dropped;
 284         u16 wow_evt_discarded;
 285
 286         s16 noise_floor_calib;
 287         s16 cs_rssi;
 288         s16 cs_ave_beacon_rssi;
 289         u8 cs_ave_beacon_snr;
 290         u8 cs_last_roam_msec;
 291         u8 cs_snr;
 292
 293         u8 wow_host_pkt_wakeups;
 294         u8 wow_host_evt_wakeups;
 295
 296         u32 arp_received;
 297         u32 arp_matched;
 298         u32 arp_replied;
 299 };
 300
 301 struct ath6kl_mbox_info {
 302         u32 htc_addr;
 303         u32 htc_ext_addr;
 304         u32 htc_ext_sz;
 305
 306         u32 block_size;
 307
 308         u32 gmbox_addr;
 309
 310         u32 gmbox_sz;
 311 };
 312
 313 /*
 314  * 802.11i defines an extended IV for use with non-WEP ciphers.
 315  * When the EXTIV bit is set in the key id byte an additional
 316  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 317  * EXTIV bit is likewise set but the 8 bytes represent the
 318  * CCMP header rather than IV+extended-IV.
 319  */
 320
 321 #define ATH6KL_KEYBUF_SIZE 16
 322 #define ATH6KL_MICBUF_SIZE (8+8)        /* space for both tx and rx */
 323
 324 #define ATH6KL_KEY_XMIT  0x01
 325 #define ATH6KL_KEY_RECV  0x02
 326 #define ATH6KL_KEY_DEFAULT   0x80       /* default xmit key */
 327
 328 /*
 329  * WPA/RSN get/set key request.  Specify the key/cipher
 330  * type and whether the key is to be used for sending and/or
 331  * receiving.  The key index should be set only when working
 332  * with global keys (use IEEE80211_KEYIX_NONE for ``no index'').
 333  * Otherwise a unicast/pairwise key is specified by the bssid
 334  * (on a station) or mac address (on an ap).  They key length
 335  * must include any MIC key data; otherwise it should be no
 336  * more than ATH6KL_KEYBUF_SIZE.
 337  */
 338 struct ath6kl_req_key {
 339         u8 ik_type;     /* key/cipher type */
 340         u8 ik_pad;
 341         u16 ik_keyix;   /* key index */
 342         u8 ik_keylen;   /* key length in bytes */
 343         u8 ik_flags;
 344         u8 ik_macaddr[ETH_ALEN];
 345         u64 ik_keyrsc;  /* key receive sequence counter */
 346         u64 ik_keytsc;  /* key transmit sequence counter */
 347         u8 ik_keydata[ATH6KL_KEYBUF_SIZE + ATH6KL_MICBUF_SIZE];
 348 };
 349
 350 /* Flag info */
 351 #define WMI_ENABLED     0
 352 #define WMI_READY       1
 353 #define CONNECTED       2
 354 #define STATS_UPDATE_PEND 3
 355 #define CONNECT_PEND      4
 356 #define WMM_ENABLED       5
 357 #define NETQ_STOPPED      6
 358 #define WMI_CTRL_EP_FULL  7
 359 #define DTIM_EXPIRED      8
 360 #define DESTROY_IN_PROGRESS  9
 361 #define NETDEV_REGISTERED    10
 362 #define SKIP_SCAN            11
 363 #define WLAN_ENABLED         12
 364
 365 struct ath6kl {
 366         struct device *dev;
 367         struct net_device *net_dev;
 368         struct ath6kl_bmi bmi;
 369         const struct ath6kl_hif_ops *hif_ops;
 370         struct wmi *wmi;
 371         int tx_pending[ENDPOINT_MAX];
 372         int total_tx_data_pend;
 373         struct htc_target *htc_target;
 374         void *hif_priv;
 375         spinlock_t lock;
 376         struct semaphore sem;
 377         int ssid_len;
 378         u8 ssid[IEEE80211_MAX_SSID_LEN];
 379         u8 next_mode;
 380         u8 nw_type;
 381         u8 dot11_auth_mode;
 382         u8 auth_mode;
 383         u8 prwise_crypto;
 384         u8 prwise_crypto_len;
 385         u8 grp_crypto;
 386         u8 grp_crpto_len;
 387         u8 def_txkey_index;
 388         struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1];
 389         u8 bssid[ETH_ALEN];
 390         u8 req_bssid[ETH_ALEN];
 391         u16 ch_hint;
 392         u16 bss_ch;
 393         u16 listen_intvl_b;
 394         u16 listen_intvl_t;
 395         struct ath6kl_version version;
 396         u32 target_type;
 397         u8 tx_pwr;
 398         struct net_device_stats net_stats;
 399         struct target_stats target_stats;
 400         struct ath6kl_node_mapping node_map[MAX_NODE_NUM];
 401         u8 ibss_ps_enable;
 402         u8 node_num;
 403         u8 next_ep_id;
 404         struct ath6kl_cookie *cookie_list;
 405         u32 cookie_count;
 406         enum htc_endpoint_id ac2ep_map[WMM_NUM_AC];
 407         bool ac_stream_active[WMM_NUM_AC];
 408         u8 ac_stream_pri_map[WMM_NUM_AC];
 409         u8 hiac_stream_active_pri;
 410         u8 ep2ac_map[ENDPOINT_MAX];
 411         enum htc_endpoint_id ctrl_ep;
 412         struct htc_credit_state_info credit_state_info;
 413         u32 connect_ctrl_flags;
 414         u32 user_key_ctrl;
 415         u8 usr_bss_filter;
 416         struct ath6kl_sta sta_list[AP_MAX_NUM_STA];
 417         u8 sta_list_index;
 418         struct ath6kl_req_key ap_mode_bkey;
 419         struct sk_buff_head mcastpsq;
 420         spinlock_t mcastpsq_lock;
 421         u8 intra_bss;
 422         struct aggr_info *aggr_cntxt;
 423         struct wmi_ap_mode_stat ap_stats;
 424         u8 ap_country_code[3];
 425         struct list_head amsdu_rx_buffer_queue;
 426         struct timer_list disconnect_timer;
 427         u8 rx_meta_ver;
 428         struct wireless_dev *wdev;
 429         struct cfg80211_scan_request *scan_req;
 430         struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1];
 431         enum sme_state sme_state;
 432         enum wlan_low_pwr_state wlan_pwr_state;
 433         struct wmi_scan_params_cmd sc_params;
 434 #define AR_MCAST_FILTER_MAC_ADDR_SIZE  4
 435         u8 auto_auth_stage;
 436
 437         u16 conf_flags;
 438         wait_queue_head_t event_wq;
 439         struct ath6kl_mbox_info mbox_info;
 440
 441         struct ath6kl_cookie cookie_mem[MAX_COOKIE_NUM];
 442         int reconnect_flag;
 443         unsigned long flag;
 444
 445         u8 *fw_board;
 446         size_t fw_board_len;
 447
 448         u8 *fw_otp;
 449         size_t fw_otp_len;
 450
 451         u8 *fw;
 452         size_t fw_len;
 453
 454         u8 *fw_patch;
 455         size_t fw_patch_len;
 456
 457         struct workqueue_struct *ath6kl_wq;
 458
 459         struct ath6kl_node_table scan_table;
 460 };
 461
 462 static inline void *ath6kl_priv(struct net_device *dev)
 463 {
 464         return wdev_priv(dev->ieee80211_ptr);
 465 }
 466
 467 static inline void ath6kl_deposit_credit_to_ep(struct htc_credit_state_info
 468                                                *cred_info,
 469                                                struct htc_endpoint_credit_dist
 470                                                *ep_dist, int credits)
 471 {
 472         ep_dist->credits += credits;
 473         ep_dist->cred_assngd += credits;
 474         cred_info->cur_free_credits -= credits;
 475 }
 476
 477 void ath6kl_destroy(struct net_device *dev, unsigned int unregister);
 478 int ath6kl_configure_target(struct ath6kl *ar);
 479 void ath6kl_detect_error(unsigned long ptr);
 480 void disconnect_timer_handler(unsigned long ptr);
 481 void init_netdev(struct net_device *dev);
 482 void ath6kl_cookie_init(struct ath6kl *ar);
 483 void ath6kl_cookie_cleanup(struct ath6kl *ar);
 484 void ath6kl_rx(struct htc_target *target, struct htc_packet *packet);
 485 void ath6kl_tx_complete(void *context, struct list_head *packet_queue);
 486 enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
 487                                                struct htc_packet *packet);
 488 void ath6kl_stop_txrx(struct ath6kl *ar);
 489 void ath6kl_cleanup_amsdu_rxbufs(struct ath6kl *ar);
 490 int ath6kl_access_datadiag(struct ath6kl *ar, u32 address,
 491                            u8 *data, u32 length, bool read);
 492 int ath6kl_read_reg_diag(struct ath6kl *ar, u32 *address, u32 *data);
 493 void ath6kl_init_profile_info(struct ath6kl *ar);
 494 void ath6kl_tx_data_cleanup(struct ath6kl *ar);
 495 void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile,
 496                           bool get_dbglogs);
 497
 498 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
 499 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
 500 int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
 501
 502 struct aggr_info *aggr_init(struct net_device *dev);
 503 void ath6kl_rx_refill(struct htc_target *target,
 504                       enum htc_endpoint_id endpoint);
 505 void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count);
 506 struct htc_packet *ath6kl_alloc_amsdu_rxbuf(struct htc_target *target,
 507                                             enum htc_endpoint_id endpoint,
 508                                             int len);
 509 void aggr_module_destroy(struct aggr_info *aggr_info);
 510 void aggr_reset_state(struct aggr_info *aggr_info);
 511
 512 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 * node_addr);
 513 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid);
 514
 515 void ath6kl_ready_event(void *devt, u8 * datap, u32 sw_ver, u32 abi_ver);
 516 int ath6kl_control_tx(void *devt, struct sk_buff *skb,
 517                       enum htc_endpoint_id eid);
 518 void ath6kl_connect_event(struct ath6kl *ar, u16 channel,
 519                           u8 *bssid, u16 listen_int,
 520                           u16 beacon_int, enum network_type net_type,
 521                           u8 beacon_ie_len, u8 assoc_req_len,
 522                           u8 assoc_resp_len, u8 *assoc_info);
 523 void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason,
 524                              u8 *bssid, u8 assoc_resp_len,
 525                              u8 *assoc_info, u16 prot_reason_status);
 526 void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast);
 527 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr);
 528 void ath6kl_scan_complete_evt(struct ath6kl *ar, int status);
 529 void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len);
 530 void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active);
 531 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac);
 532
 533 void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid);
 534
 535 void ath6kl_dtimexpiry_event(struct ath6kl *ar);
 536 void ath6kl_disconnect(struct ath6kl *ar);
 537 void aggr_recv_delba_req_evt(struct ath6kl *ar, u8 tid);
 538 void aggr_recv_addba_req_evt(struct ath6kl *ar, u8 tid, u16 seq_no,
 539                              u8 win_sz);
 540 void ath6kl_wakeup_event(void *dev);
 541 void ath6kl_target_failure(struct ath6kl *ar);
 542
 543 void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni);
 544 #endif /* CORE_H */