include/net/bluetooth/hci_core.h

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 #ifndef __HCI_CORE_H
  26 #define __HCI_CORE_H
  27
  28 #include <linux/leds.h>
  29 #include <linux/rculist.h>
  30
  31 #include <net/bluetooth/hci.h>
  32 #include <net/bluetooth/hci_sock.h>
  33
  34 /* HCI priority */
  35 #define HCI_PRIO_MAX    7
  36
  37 /* HCI Core structures */
  38 struct inquiry_data {
  39         bdaddr_t        bdaddr;
  40         __u8            pscan_rep_mode;
  41         __u8            pscan_period_mode;
  42         __u8            pscan_mode;
  43         __u8            dev_class[3];
  44         __le16          clock_offset;
  45         __s8            rssi;
  46         __u8            ssp_mode;
  47 };
  48
  49 struct inquiry_entry {
  50         struct list_head        all;            /* inq_cache.all */
  51         struct list_head        list;           /* unknown or resolve */
  52         enum {
  53                 NAME_NOT_KNOWN,
  54                 NAME_NEEDED,
  55                 NAME_PENDING,
  56                 NAME_KNOWN,
  57         } name_state;
  58         __u32                   timestamp;
  59         struct inquiry_data     data;
  60 };
  61
  62 struct discovery_state {
  63         int                     type;
  64         enum {
  65                 DISCOVERY_STOPPED,
  66                 DISCOVERY_STARTING,
  67                 DISCOVERY_FINDING,
  68                 DISCOVERY_RESOLVING,
  69                 DISCOVERY_STOPPING,
  70         } state;
  71         struct list_head        all;    /* All devices found during inquiry */
  72         struct list_head        unknown;        /* Name state not known */
  73         struct list_head        resolve;        /* Name needs to be resolved */
  74         __u32                   timestamp;
  75         bdaddr_t                last_adv_addr;
  76         u8                      last_adv_addr_type;
  77         s8                      last_adv_rssi;
  78         u32                     last_adv_flags;
  79         u8                      last_adv_data[HCI_MAX_AD_LENGTH];
  80         u8                      last_adv_data_len;
  81         bool                    report_invalid_rssi;
  82         bool                    result_filtering;
  83         bool                    limited;
  84         s8                      rssi;
  85         u16                     uuid_count;
  86         u8                      (*uuids)[16];
  87         unsigned long           scan_start;
  88         unsigned long           scan_duration;
  89 };
  90
  91 struct hci_conn_hash {
  92         struct list_head list;
  93         unsigned int     acl_num;
  94         unsigned int     amp_num;
  95         unsigned int     sco_num;
  96         unsigned int     le_num;
  97         unsigned int     le_num_slave;
  98 };
  99
 100 struct bdaddr_list {
 101         struct list_head list;
 102         bdaddr_t bdaddr;
 103         u8 bdaddr_type;
 104 };
 105
 106 struct bt_uuid {
 107         struct list_head list;
 108         u8 uuid[16];
 109         u8 size;
 110         u8 svc_hint;
 111 };
 112
 113 struct smp_csrk {
 114         bdaddr_t bdaddr;
 115         u8 bdaddr_type;
 116         u8 type;
 117         u8 val[16];
 118 };
 119
 120 struct smp_ltk {
 121         struct list_head list;
 122         struct rcu_head rcu;
 123         bdaddr_t bdaddr;
 124         u8 bdaddr_type;
 125         u8 authenticated;
 126         u8 type;
 127         u8 enc_size;
 128         __le16 ediv;
 129         __le64 rand;
 130         u8 val[16];
 131 };
 132
 133 struct smp_irk {
 134         struct list_head list;
 135         struct rcu_head rcu;
 136         bdaddr_t rpa;
 137         bdaddr_t bdaddr;
 138         u8 addr_type;
 139         u8 val[16];
 140 };
 141
 142 struct link_key {
 143         struct list_head list;
 144         struct rcu_head rcu;
 145         bdaddr_t bdaddr;
 146         u8 type;
 147         u8 val[HCI_LINK_KEY_SIZE];
 148         u8 pin_len;
 149 };
 150
 151 struct oob_data {
 152         struct list_head list;
 153         bdaddr_t bdaddr;
 154         u8 bdaddr_type;
 155         u8 present;
 156         u8 hash192[16];
 157         u8 rand192[16];
 158         u8 hash256[16];
 159         u8 rand256[16];
 160 };
 161
 162 struct adv_info {
 163         struct list_head list;
 164         bool pending;
 165         __u8    instance;
 166         __u32   flags;
 167         __u16   timeout;
 168         __u16   remaining_time;
 169         __u16   duration;
 170         __u16   adv_data_len;
 171         __u8    adv_data[HCI_MAX_AD_LENGTH];
 172         __u16   scan_rsp_len;
 173         __u8    scan_rsp_data[HCI_MAX_AD_LENGTH];
 174         __s8    tx_power;
 175         bdaddr_t        random_addr;
 176         bool            rpa_expired;
 177         struct delayed_work     rpa_expired_cb;
 178 };
 179
 180 #define HCI_MAX_ADV_INSTANCES           5
 181 #define HCI_DEFAULT_ADV_DURATION        2
 182
 183 #define HCI_MAX_SHORT_NAME_LENGTH       10
 184
 185 /* Min encryption key size to match with SMP */
 186 #define HCI_MIN_ENC_KEY_SIZE            7
 187
 188 /* Default LE RPA expiry time, 15 minutes */
 189 #define HCI_DEFAULT_RPA_TIMEOUT         (15 * 60)
 190
 191 /* Default min/max age of connection information (1s/3s) */
 192 #define DEFAULT_CONN_INFO_MIN_AGE       1000
 193 #define DEFAULT_CONN_INFO_MAX_AGE       3000
 194
 195 struct amp_assoc {
 196         __u16   len;
 197         __u16   offset;
 198         __u16   rem_len;
 199         __u16   len_so_far;
 200         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 201 };
 202
 203 #define HCI_MAX_PAGES   3
 204
 205 #ifdef TIZEN_BT
 206 #define HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH    100
 207 #endif
 208
 209 struct hci_dev {
 210         struct list_head list;
 211         struct mutex    lock;
 212
 213         char            name[8];
 214         unsigned long   flags;
 215         __u16           id;
 216         __u8            bus;
 217         __u8            dev_type;
 218         bdaddr_t        bdaddr;
 219         bdaddr_t        setup_addr;
 220         bdaddr_t        public_addr;
 221         bdaddr_t        random_addr;
 222         bdaddr_t        static_addr;
 223         __u8            adv_addr_type;
 224         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 225         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 226         __u8            eir[HCI_MAX_EIR_LENGTH];
 227         __u16           appearance;
 228         __u8            dev_class[3];
 229         __u8            major_class;
 230         __u8            minor_class;
 231         __u8            max_page;
 232         __u8            features[HCI_MAX_PAGES][8];
 233         __u8            le_features[8];
 234         __u8            le_white_list_size;
 235         __u8            le_resolv_list_size;
 236         __u8            le_num_of_adv_sets;
 237         __u8            le_states[8];
 238         __u8            commands[64];
 239         __u8            hci_ver;
 240         __u16           hci_rev;
 241         __u8            lmp_ver;
 242         __u16           manufacturer;
 243         __u16           lmp_subver;
 244         __u16           voice_setting;
 245         __u8            num_iac;
 246         __u8            stored_max_keys;
 247         __u8            stored_num_keys;
 248         __u8            io_capability;
 249         __s8            inq_tx_power;
 250         __u16           page_scan_interval;
 251         __u16           page_scan_window;
 252         __u8            page_scan_type;
 253         __u8            le_adv_channel_map;
 254         __u16           le_adv_min_interval;
 255         __u16           le_adv_max_interval;
 256         __u8            le_scan_type;
 257         __u16           le_scan_interval;
 258         __u16           le_scan_window;
 259         __u16           le_conn_min_interval;
 260         __u16           le_conn_max_interval;
 261         __u16           le_conn_latency;
 262         __u16           le_supv_timeout;
 263         __u16           le_def_tx_len;
 264         __u16           le_def_tx_time;
 265         __u16           le_max_tx_len;
 266         __u16           le_max_tx_time;
 267         __u16           le_max_rx_len;
 268         __u16           le_max_rx_time;
 269         __u8            le_max_key_size;
 270         __u8            le_min_key_size;
 271         __u16           discov_interleaved_timeout;
 272         __u16           conn_info_min_age;
 273         __u16           conn_info_max_age;
 274         __u8            ssp_debug_mode;
 275         __u8            hw_error_code;
 276         __u32           clock;
 277
 278         __u16           devid_source;
 279         __u16           devid_vendor;
 280         __u16           devid_product;
 281         __u16           devid_version;
 282
 283         __u16           pkt_type;
 284         __u16           esco_type;
 285         __u16           link_policy;
 286         __u16           link_mode;
 287
 288         __u32           idle_timeout;
 289         __u16           sniff_min_interval;
 290         __u16           sniff_max_interval;
 291
 292         __u8            amp_status;
 293         __u32           amp_total_bw;
 294         __u32           amp_max_bw;
 295         __u32           amp_min_latency;
 296         __u32           amp_max_pdu;
 297         __u8            amp_type;
 298         __u16           amp_pal_cap;
 299         __u16           amp_assoc_size;
 300         __u32           amp_max_flush_to;
 301         __u32           amp_be_flush_to;
 302
 303         struct amp_assoc        loc_assoc;
 304
 305         __u8            flow_ctl_mode;
 306
 307         unsigned int    auto_accept_delay;
 308
 309         unsigned long   quirks;
 310
 311         atomic_t        cmd_cnt;
 312         unsigned int    acl_cnt;
 313         unsigned int    sco_cnt;
 314         unsigned int    le_cnt;
 315
 316         unsigned int    acl_mtu;
 317         unsigned int    sco_mtu;
 318         unsigned int    le_mtu;
 319         unsigned int    acl_pkts;
 320         unsigned int    sco_pkts;
 321         unsigned int    le_pkts;
 322
 323         __u16           block_len;
 324         __u16           block_mtu;
 325         __u16           num_blocks;
 326         __u16           block_cnt;
 327
 328         unsigned long   acl_last_tx;
 329         unsigned long   sco_last_tx;
 330         unsigned long   le_last_tx;
 331
 332         __u8            le_tx_def_phys;
 333         __u8            le_rx_def_phys;
 334
 335         struct workqueue_struct *workqueue;
 336         struct workqueue_struct *req_workqueue;
 337
 338         struct work_struct      power_on;
 339         struct delayed_work     power_off;
 340         struct work_struct      error_reset;
 341
 342         __u16                   discov_timeout;
 343         struct delayed_work     discov_off;
 344
 345         struct delayed_work     service_cache;
 346
 347         struct delayed_work     cmd_timer;
 348
 349         struct work_struct      rx_work;
 350         struct work_struct      cmd_work;
 351         struct work_struct      tx_work;
 352
 353         struct work_struct      discov_update;
 354         struct work_struct      bg_scan_update;
 355         struct work_struct      scan_update;
 356         struct work_struct      connectable_update;
 357         struct work_struct      discoverable_update;
 358         struct delayed_work     le_scan_disable;
 359         struct delayed_work     le_scan_restart;
 360
 361         struct sk_buff_head     rx_q;
 362         struct sk_buff_head     raw_q;
 363         struct sk_buff_head     cmd_q;
 364
 365         struct sk_buff          *sent_cmd;
 366
 367         struct mutex            req_lock;
 368         wait_queue_head_t       req_wait_q;
 369         __u32                   req_status;
 370         __u32                   req_result;
 371         struct sk_buff          *req_skb;
 372
 373         void                    *smp_data;
 374         void                    *smp_bredr_data;
 375
 376         struct discovery_state  discovery;
 377 #ifdef TIZEN_BT
 378         struct discovery_state  le_discovery;
 379 #endif
 380         struct hci_conn_hash    conn_hash;
 381
 382         struct list_head        mgmt_pending;
 383         struct list_head        blacklist;
 384         struct list_head        whitelist;
 385         struct list_head        uuids;
 386         struct list_head        link_keys;
 387         struct list_head        long_term_keys;
 388         struct list_head        identity_resolving_keys;
 389         struct list_head        remote_oob_data;
 390         struct list_head        le_white_list;
 391         struct list_head        le_resolv_list;
 392         struct list_head        le_conn_params;
 393         struct list_head        pend_le_conns;
 394         struct list_head        pend_le_reports;
 395
 396         struct hci_dev_stats    stat;
 397
 398         atomic_t                promisc;
 399
 400         const char              *hw_info;
 401         const char              *fw_info;
 402         struct dentry           *debugfs;
 403
 404         struct device           dev;
 405
 406         struct rfkill           *rfkill;
 407
 408         DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 409
 410         __s8                    adv_tx_power;
 411         __u8                    adv_data[HCI_MAX_AD_LENGTH];
 412         __u8                    adv_data_len;
 413         __u8                    scan_rsp_data[HCI_MAX_AD_LENGTH];
 414         __u8                    scan_rsp_data_len;
 415
 416         struct list_head        adv_instances;
 417         unsigned int            adv_instance_cnt;
 418         __u8                    cur_adv_instance;
 419         __u16                   adv_instance_timeout;
 420         struct delayed_work     adv_instance_expire;
 421
 422         __u8                    irk[16];
 423         __u32                   rpa_timeout;
 424         struct delayed_work     rpa_expired;
 425         bdaddr_t                rpa;
 426
 427 #if IS_ENABLED(CONFIG_BT_LEDS)
 428         struct led_trigger      *power_led;
 429 #endif
 430
 431 #ifdef TIZEN_BT
 432         __u8                    adv_filter_policy;
 433         __u8                    adv_type;
 434         __u8                    manufacturer_len;
 435         __u8                    manufacturer_data[HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH];
 436 #endif
 437
 438         int (*open)(struct hci_dev *hdev);
 439         int (*close)(struct hci_dev *hdev);
 440         int (*flush)(struct hci_dev *hdev);
 441         int (*setup)(struct hci_dev *hdev);
 442         int (*shutdown)(struct hci_dev *hdev);
 443         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 444         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 445         void (*hw_error)(struct hci_dev *hdev, u8 code);
 446         int (*post_init)(struct hci_dev *hdev);
 447         int (*set_diag)(struct hci_dev *hdev, bool enable);
 448         int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 449 };
 450
 451 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 452
 453 struct hci_conn {
 454         struct list_head list;
 455
 456         atomic_t        refcnt;
 457
 458         bdaddr_t        dst;
 459         __u8            dst_type;
 460         bdaddr_t        src;
 461         __u8            src_type;
 462         bdaddr_t        init_addr;
 463         __u8            init_addr_type;
 464         bdaddr_t        resp_addr;
 465         __u8            resp_addr_type;
 466         __u16           handle;
 467         __u16           state;
 468         __u8            mode;
 469         __u8            type;
 470         __u8            role;
 471         bool            out;
 472         __u8            attempt;
 473         __u8            dev_class[3];
 474         __u8            features[HCI_MAX_PAGES][8];
 475         __u16           pkt_type;
 476         __u16           link_policy;
 477         __u8            key_type;
 478         __u8            auth_type;
 479         __u8            sec_level;
 480         __u8            pending_sec_level;
 481         __u8            pin_length;
 482         __u8            enc_key_size;
 483         __u8            io_capability;
 484         __u32           passkey_notify;
 485         __u8            passkey_entered;
 486         __u16           disc_timeout;
 487         __u16           conn_timeout;
 488         __u16           setting;
 489         __u16           le_conn_min_interval;
 490         __u16           le_conn_max_interval;
 491         __u16           le_conn_interval;
 492         __u16           le_conn_latency;
 493         __u16           le_supv_timeout;
 494         __u8            le_adv_data[HCI_MAX_AD_LENGTH];
 495         __u8            le_adv_data_len;
 496         __s8            rssi;
 497         __s8            tx_power;
 498         __s8            max_tx_power;
 499         unsigned long   flags;
 500
 501         __u32           clock;
 502         __u16           clock_accuracy;
 503
 504         unsigned long   conn_info_timestamp;
 505
 506         __u8            remote_cap;
 507         __u8            remote_auth;
 508         __u8            remote_id;
 509
 510         unsigned int    sent;
 511
 512         struct sk_buff_head data_q;
 513         struct list_head chan_list;
 514
 515         struct delayed_work disc_work;
 516         struct delayed_work auto_accept_work;
 517         struct delayed_work idle_work;
 518         struct delayed_work le_conn_timeout;
 519         struct work_struct  le_scan_cleanup;
 520
 521         struct device   dev;
 522         struct dentry   *debugfs;
 523
 524         struct hci_dev  *hdev;
 525         void            *l2cap_data;
 526         void            *sco_data;
 527         struct amp_mgr  *amp_mgr;
 528
 529 #ifdef TIZEN_BT
 530         bool            rssi_monitored;
 531         __u8            sco_role;
 532         __u16           voice_setting;
 533 #endif
 534         struct hci_conn *link;
 535
 536         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 537         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 538         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 539 };
 540
 541 struct hci_chan {
 542         struct list_head list;
 543         __u16 handle;
 544         struct hci_conn *conn;
 545         struct sk_buff_head data_q;
 546         unsigned int    sent;
 547         __u8            state;
 548 };
 549
 550 struct hci_conn_params {
 551         struct list_head list;
 552         struct list_head action;
 553
 554         bdaddr_t addr;
 555         u8 addr_type;
 556
 557         u16 conn_min_interval;
 558         u16 conn_max_interval;
 559         u16 conn_latency;
 560         u16 supervision_timeout;
 561
 562         enum {
 563                 HCI_AUTO_CONN_DISABLED,
 564                 HCI_AUTO_CONN_REPORT,
 565                 HCI_AUTO_CONN_DIRECT,
 566                 HCI_AUTO_CONN_ALWAYS,
 567                 HCI_AUTO_CONN_LINK_LOSS,
 568                 HCI_AUTO_CONN_EXPLICIT,
 569         } auto_connect;
 570
 571         struct hci_conn *conn;
 572         bool explicit_connect;
 573 };
 574
 575 extern struct list_head hci_dev_list;
 576 extern struct list_head hci_cb_list;
 577 extern rwlock_t hci_dev_list_lock;
 578 extern struct mutex hci_cb_list_lock;
 579
 580 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 581 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 582 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 583 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 584 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 585 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 586 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 587
 588 #define hci_dev_clear_volatile_flags(hdev)                      \
 589         do {                                                    \
 590                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 591                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 592                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 593         } while (0)
 594
 595 /* ----- HCI interface to upper protocols ----- */
 596 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 597 int l2cap_disconn_ind(struct hci_conn *hcon);
 598 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 599
 600 #if IS_ENABLED(CONFIG_BT_BREDR)
 601 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 602 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 603 #else
 604 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 605                                   __u8 *flags)
 606 {
 607         return 0;
 608 }
 609
 610 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 611 {
 612 }
 613 #endif
 614
 615 /* ----- Inquiry cache ----- */
 616 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 617 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 618
 619 static inline void discovery_init(struct hci_dev *hdev)
 620 {
 621         hdev->discovery.state = DISCOVERY_STOPPED;
 622         INIT_LIST_HEAD(&hdev->discovery.all);
 623         INIT_LIST_HEAD(&hdev->discovery.unknown);
 624         INIT_LIST_HEAD(&hdev->discovery.resolve);
 625         hdev->discovery.report_invalid_rssi = true;
 626         hdev->discovery.rssi = HCI_RSSI_INVALID;
 627 }
 628
 629 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 630 {
 631         hdev->discovery.result_filtering = false;
 632         hdev->discovery.report_invalid_rssi = true;
 633         hdev->discovery.rssi = HCI_RSSI_INVALID;
 634         hdev->discovery.uuid_count = 0;
 635         kfree(hdev->discovery.uuids);
 636         hdev->discovery.uuids = NULL;
 637         hdev->discovery.scan_start = 0;
 638         hdev->discovery.scan_duration = 0;
 639 }
 640
 641 bool hci_discovery_active(struct hci_dev *hdev);
 642
 643 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 644
 645 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 646 {
 647         return list_empty(&hdev->discovery.all);
 648 }
 649
 650 static inline long inquiry_cache_age(struct hci_dev *hdev)
 651 {
 652         struct discovery_state *c = &hdev->discovery;
 653         return jiffies - c->timestamp;
 654 }
 655
 656 static inline long inquiry_entry_age(struct inquiry_entry *e)
 657 {
 658         return jiffies - e->timestamp;
 659 }
 660
 661 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 662                                                bdaddr_t *bdaddr);
 663 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 664                                                        bdaddr_t *bdaddr);
 665 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 666                                                        bdaddr_t *bdaddr,
 667                                                        int state);
 668 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 669                                       struct inquiry_entry *ie);
 670 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 671                              bool name_known);
 672 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 673
 674 /* ----- HCI Connections ----- */
 675 #ifdef TIZEN_BT
 676 #define LINK_SUPERVISION_TIMEOUT        0x1F40   /* n * 0.625 = 5 seconds */
 677 #endif /* TIZEN_BT */
 678
 679 enum {
 680         HCI_CONN_AUTH_PEND,
 681         HCI_CONN_REAUTH_PEND,
 682         HCI_CONN_ENCRYPT_PEND,
 683         HCI_CONN_RSWITCH_PEND,
 684         HCI_CONN_MODE_CHANGE_PEND,
 685         HCI_CONN_SCO_SETUP_PEND,
 686         HCI_CONN_MGMT_CONNECTED,
 687         HCI_CONN_SSP_ENABLED,
 688         HCI_CONN_SC_ENABLED,
 689         HCI_CONN_AES_CCM,
 690         HCI_CONN_POWER_SAVE,
 691         HCI_CONN_FLUSH_KEY,
 692         HCI_CONN_ENCRYPT,
 693         HCI_CONN_AUTH,
 694         HCI_CONN_SECURE,
 695         HCI_CONN_FIPS,
 696         HCI_CONN_STK_ENCRYPT,
 697         HCI_CONN_AUTH_INITIATOR,
 698         HCI_CONN_DROP,
 699         HCI_CONN_PARAM_REMOVAL_PEND,
 700         HCI_CONN_NEW_LINK_KEY,
 701         HCI_CONN_SCANNING,
 702         HCI_CONN_AUTH_FAILURE,
 703 };
 704
 705 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 706 {
 707         struct hci_dev *hdev = conn->hdev;
 708         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 709                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 710 }
 711
 712 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 713 {
 714         struct hci_dev *hdev = conn->hdev;
 715         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 716                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
 717 }
 718
 719 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 720 {
 721         struct hci_conn_hash *h = &hdev->conn_hash;
 722         list_add_rcu(&c->list, &h->list);
 723         switch (c->type) {
 724         case ACL_LINK:
 725                 h->acl_num++;
 726                 break;
 727         case AMP_LINK:
 728                 h->amp_num++;
 729                 break;
 730         case LE_LINK:
 731                 h->le_num++;
 732                 if (c->role == HCI_ROLE_SLAVE)
 733                         h->le_num_slave++;
 734                 break;
 735         case SCO_LINK:
 736         case ESCO_LINK:
 737                 h->sco_num++;
 738                 break;
 739         }
 740 }
 741
 742 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 743 {
 744         struct hci_conn_hash *h = &hdev->conn_hash;
 745
 746         list_del_rcu(&c->list);
 747         synchronize_rcu();
 748
 749         switch (c->type) {
 750         case ACL_LINK:
 751                 h->acl_num--;
 752                 break;
 753         case AMP_LINK:
 754                 h->amp_num--;
 755                 break;
 756         case LE_LINK:
 757                 h->le_num--;
 758                 if (c->role == HCI_ROLE_SLAVE)
 759                         h->le_num_slave--;
 760                 break;
 761         case SCO_LINK:
 762         case ESCO_LINK:
 763                 h->sco_num--;
 764                 break;
 765         }
 766 }
 767
 768 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 769 {
 770         struct hci_conn_hash *h = &hdev->conn_hash;
 771         switch (type) {
 772         case ACL_LINK:
 773                 return h->acl_num;
 774         case AMP_LINK:
 775                 return h->amp_num;
 776         case LE_LINK:
 777                 return h->le_num;
 778         case SCO_LINK:
 779         case ESCO_LINK:
 780                 return h->sco_num;
 781         default:
 782                 return 0;
 783         }
 784 }
 785
 786 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
 787 {
 788         struct hci_conn_hash *c = &hdev->conn_hash;
 789
 790         return c->acl_num + c->amp_num + c->sco_num + c->le_num;
 791 }
 792
 793 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 794 {
 795         struct hci_conn_hash *h = &hdev->conn_hash;
 796         struct hci_conn *c;
 797         __u8 type = INVALID_LINK;
 798
 799         rcu_read_lock();
 800
 801         list_for_each_entry_rcu(c, &h->list, list) {
 802                 if (c->handle == handle) {
 803                         type = c->type;
 804                         break;
 805                 }
 806         }
 807
 808         rcu_read_unlock();
 809
 810         return type;
 811 }
 812
 813 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 814                                                                 __u16 handle)
 815 {
 816         struct hci_conn_hash *h = &hdev->conn_hash;
 817         struct hci_conn  *c;
 818
 819         rcu_read_lock();
 820
 821         list_for_each_entry_rcu(c, &h->list, list) {
 822                 if (c->handle == handle) {
 823                         rcu_read_unlock();
 824                         return c;
 825                 }
 826         }
 827         rcu_read_unlock();
 828
 829         return NULL;
 830 }
 831
 832 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 833                                                         __u8 type, bdaddr_t *ba)
 834 {
 835         struct hci_conn_hash *h = &hdev->conn_hash;
 836         struct hci_conn  *c;
 837
 838         rcu_read_lock();
 839
 840         list_for_each_entry_rcu(c, &h->list, list) {
 841                 if (c->type == type && !bacmp(&c->dst, ba)) {
 842                         rcu_read_unlock();
 843                         return c;
 844                 }
 845         }
 846
 847         rcu_read_unlock();
 848
 849         return NULL;
 850 }
 851
 852 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
 853                                                        bdaddr_t *ba,
 854                                                        __u8 ba_type)
 855 {
 856         struct hci_conn_hash *h = &hdev->conn_hash;
 857         struct hci_conn  *c;
 858
 859         rcu_read_lock();
 860
 861         list_for_each_entry_rcu(c, &h->list, list) {
 862                 if (c->type != LE_LINK)
 863                        continue;
 864
 865                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
 866                         rcu_read_unlock();
 867                         return c;
 868                 }
 869         }
 870
 871         rcu_read_unlock();
 872
 873         return NULL;
 874 }
 875
 876 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 877                                                         __u8 type, __u16 state)
 878 {
 879         struct hci_conn_hash *h = &hdev->conn_hash;
 880         struct hci_conn  *c;
 881
 882         rcu_read_lock();
 883
 884         list_for_each_entry_rcu(c, &h->list, list) {
 885                 if (c->type == type && c->state == state) {
 886                         rcu_read_unlock();
 887                         return c;
 888                 }
 889         }
 890
 891         rcu_read_unlock();
 892
 893         return NULL;
 894 }
 895
 896 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
 897 {
 898         struct hci_conn_hash *h = &hdev->conn_hash;
 899         struct hci_conn  *c;
 900
 901         rcu_read_lock();
 902
 903         list_for_each_entry_rcu(c, &h->list, list) {
 904                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
 905                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
 906                         rcu_read_unlock();
 907                         return c;
 908                 }
 909         }
 910
 911         rcu_read_unlock();
 912
 913         return NULL;
 914 }
 915
 916 #ifdef TIZEN_BT
 917 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
 918                                         __u8 type, bdaddr_t *ba, bool value)
 919 {
 920         struct hci_conn_hash *h = &hdev->conn_hash;
 921         struct hci_conn  *c;
 922         __u8 conn_type;
 923
 924         if (type == 0x01)
 925                 conn_type = LE_LINK;
 926         else
 927                 conn_type = ACL_LINK;
 928
 929         rcu_read_lock();
 930
 931         list_for_each_entry_rcu(c, &h->list, list) {
 932                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
 933                         c->rssi_monitored = value;
 934                         rcu_read_unlock();
 935                         return true;
 936                 }
 937         }
 938
 939         rcu_read_unlock();
 940         return false;
 941 }
 942
 943 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
 944                                         __u8 type)
 945 {
 946         struct hci_conn_hash *h = &hdev->conn_hash;
 947         struct hci_conn  *c;
 948         __u8 conn_type;
 949
 950         if (type == 0x01)
 951                 conn_type = LE_LINK;
 952         else
 953                 conn_type = ACL_LINK;
 954
 955         rcu_read_lock();
 956         list_for_each_entry_rcu(c, &h->list, list) {
 957                 if (c->type == conn_type)
 958                         c->rssi_monitored = false;
 959         }
 960         rcu_read_unlock();
 961 }
 962
 963 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
 964 {
 965         struct hci_conn_hash *h = &hdev->conn_hash;
 966         struct hci_conn  *c;
 967         int count = 0;
 968
 969         rcu_read_lock();
 970         list_for_each_entry_rcu(c, &h->list, list) {
 971                 if (c->rssi_monitored == true)
 972                         ++count;
 973         }
 974         rcu_read_unlock();
 975
 976         return count;
 977 }
 978
 979 int hci_conn_change_supervision_timeout(struct hci_conn *conn, __u16 timeout);
 980 bool hci_le_discovery_active(struct hci_dev *hdev);
 981 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
 982
 983 static inline struct hci_conn *hci_conn_hash_lookup_sco(struct hci_dev *hdev)
 984 {
 985         struct hci_conn_hash *h = &hdev->conn_hash;
 986         struct hci_conn  *c;
 987
 988         rcu_read_lock();
 989         list_for_each_entry_rcu(c, &h->list, list) {
 990                 if (c->type == SCO_LINK || c->type == ESCO_LINK) {
 991                         rcu_read_unlock();
 992                         return c;
 993                 }
 994         }
 995         rcu_read_unlock();
 996
 997         return NULL;
 998 }
 999 #endif
1000
1001 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1002 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1003 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1004
1005 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1006                               u8 role);
1007 int hci_conn_del(struct hci_conn *conn);
1008 void hci_conn_hash_flush(struct hci_dev *hdev);
1009 void hci_conn_check_pending(struct hci_dev *hdev);
1010
1011 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1012 void hci_chan_del(struct hci_chan *chan);
1013 void hci_chan_list_flush(struct hci_conn *conn);
1014 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1015
1016 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1017                                      u8 dst_type, u8 sec_level,
1018                                      u16 conn_timeout);
1019 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1020                                 u8 dst_type, u8 sec_level, u16 conn_timeout,
1021                                 u8 role, bdaddr_t *direct_rpa);
1022 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1023                                  u8 sec_level, u8 auth_type);
1024 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1025                                  __u16 setting);
1026 int hci_conn_check_link_mode(struct hci_conn *conn);
1027 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1028 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1029                       bool initiator);
1030 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1031
1032 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1033
1034 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1035
1036 /*
1037  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1038  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1039  * working or anything else. They just guarantee that the object is available
1040  * and can be dereferenced. So you can use its locks, local variables and any
1041  * other constant data.
1042  * Before accessing runtime data, you _must_ lock the object and then check that
1043  * it is still running. As soon as you release the locks, the connection might
1044  * get dropped, though.
1045  *
1046  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1047  * how long the underlying connection is held. So every channel that runs on the
1048  * hci_conn object calls this to prevent the connection from disappearing. As
1049  * long as you hold a device, you must also guarantee that you have a valid
1050  * reference to the device via hci_conn_get() (or the initial reference from
1051  * hci_conn_add()).
1052  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1053  * break because nobody cares for that. But this means, we cannot use
1054  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1055  */
1056
1057 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1058 {
1059         get_device(&conn->dev);
1060         return conn;
1061 }
1062
1063 static inline void hci_conn_put(struct hci_conn *conn)
1064 {
1065         put_device(&conn->dev);
1066 }
1067
1068 static inline void hci_conn_hold(struct hci_conn *conn)
1069 {
1070         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1071
1072         atomic_inc(&conn->refcnt);
1073         cancel_delayed_work(&conn->disc_work);
1074 }
1075
1076 static inline void hci_conn_drop(struct hci_conn *conn)
1077 {
1078         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1079
1080         if (atomic_dec_and_test(&conn->refcnt)) {
1081                 unsigned long timeo;
1082
1083                 switch (conn->type) {
1084                 case ACL_LINK:
1085                 case LE_LINK:
1086                         cancel_delayed_work(&conn->idle_work);
1087                         if (conn->state == BT_CONNECTED) {
1088                                 timeo = conn->disc_timeout;
1089                                 if (!conn->out)
1090                                         timeo *= 2;
1091                         } else {
1092                                 timeo = 0;
1093                         }
1094                         break;
1095
1096                 case AMP_LINK:
1097                         timeo = conn->disc_timeout;
1098                         break;
1099
1100                 default:
1101                         timeo = 0;
1102                         break;
1103                 }
1104
1105                 cancel_delayed_work(&conn->disc_work);
1106                 queue_delayed_work(conn->hdev->workqueue,
1107                                    &conn->disc_work, timeo);
1108         }
1109 }
1110
1111 /* ----- HCI Devices ----- */
1112 static inline void hci_dev_put(struct hci_dev *d)
1113 {
1114         BT_DBG("%s orig refcnt %d", d->name,
1115                kref_read(&d->dev.kobj.kref));
1116
1117         put_device(&d->dev);
1118 }
1119
1120 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1121 {
1122         BT_DBG("%s orig refcnt %d", d->name,
1123                kref_read(&d->dev.kobj.kref));
1124
1125         get_device(&d->dev);
1126         return d;
1127 }
1128
1129 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1130 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1131
1132 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1133 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1134
1135 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1136 {
1137         return dev_get_drvdata(&hdev->dev);
1138 }
1139
1140 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1141 {
1142         dev_set_drvdata(&hdev->dev, data);
1143 }
1144
1145 struct hci_dev *hci_dev_get(int index);
1146 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1147
1148 struct hci_dev *hci_alloc_dev(void);
1149 void hci_free_dev(struct hci_dev *hdev);
1150 int hci_register_dev(struct hci_dev *hdev);
1151 void hci_unregister_dev(struct hci_dev *hdev);
1152 int hci_suspend_dev(struct hci_dev *hdev);
1153 int hci_resume_dev(struct hci_dev *hdev);
1154 int hci_reset_dev(struct hci_dev *hdev);
1155 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1156 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1157 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1158 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1159 int hci_dev_open(__u16 dev);
1160 int hci_dev_close(__u16 dev);
1161 int hci_dev_do_close(struct hci_dev *hdev);
1162 int hci_dev_reset(__u16 dev);
1163 int hci_dev_reset_stat(__u16 dev);
1164 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1165 int hci_get_dev_list(void __user *arg);
1166 int hci_get_dev_info(void __user *arg);
1167 int hci_get_conn_list(void __user *arg);
1168 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1169 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1170 #ifdef TIZEN_BT
1171 u32 get_link_mode(struct hci_conn *conn);
1172 #endif
1173 int hci_inquiry(void __user *arg);
1174
1175 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1176                                            bdaddr_t *bdaddr, u8 type);
1177 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1178 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1179 void hci_bdaddr_list_clear(struct list_head *list);
1180
1181 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1182                                                bdaddr_t *addr, u8 addr_type);
1183 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1184                                             bdaddr_t *addr, u8 addr_type);
1185 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1186 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1187
1188 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1189                                                   bdaddr_t *addr,
1190                                                   u8 addr_type);
1191
1192 void hci_uuids_clear(struct hci_dev *hdev);
1193
1194 void hci_link_keys_clear(struct hci_dev *hdev);
1195 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1196 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1197                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1198                                   u8 pin_len, bool *persistent);
1199 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1200                             u8 addr_type, u8 type, u8 authenticated,
1201                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1202 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1203                              u8 addr_type, u8 role);
1204 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1205 void hci_smp_ltks_clear(struct hci_dev *hdev);
1206 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1207
1208 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1209 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1210                                      u8 addr_type);
1211 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1212                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1213 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1214 void hci_smp_irks_clear(struct hci_dev *hdev);
1215
1216 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1217
1218 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1219 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1220                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1221 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1222                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1223                             u8 *hash256, u8 *rand256);
1224 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1225                                u8 bdaddr_type);
1226
1227 void hci_adv_instances_clear(struct hci_dev *hdev);
1228 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1229 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1230 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1231                          u16 adv_data_len, u8 *adv_data,
1232                          u16 scan_rsp_len, u8 *scan_rsp_data,
1233                          u16 timeout, u16 duration);
1234 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1235 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1236
1237 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1238
1239 void hci_init_sysfs(struct hci_dev *hdev);
1240 void hci_conn_init_sysfs(struct hci_conn *conn);
1241 void hci_conn_add_sysfs(struct hci_conn *conn);
1242 void hci_conn_del_sysfs(struct hci_conn *conn);
1243
1244 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1245
1246 /* ----- LMP capabilities ----- */
1247 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1248 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1249 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1250 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1251 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1252 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1253 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1254 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1255 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1256 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1257 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1258 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1259 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1260 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1261 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1262 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1263 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1264 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1265 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1266 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1267 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1268 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1269 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1270
1271 /* ----- Extended LMP capabilities ----- */
1272 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1273 #define lmp_csb_slave_capable(dev)  ((dev)->features[2][0] & LMP_CSB_SLAVE)
1274 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1275 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1276 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1277 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1278
1279 /* ----- Host capabilities ----- */
1280 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1281 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1282 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1283 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1284
1285 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1286                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1287 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1288                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1289
1290 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1291                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1292
1293 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1294                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1295
1296 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1297                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1298
1299 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1300 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1301                            ((dev)->commands[37] & 0x40))
1302 /* Use ext create connection if command is supported */
1303 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1304
1305 /* Extended advertising support */
1306 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1307
1308 /* ----- HCI protocols ----- */
1309 #define HCI_PROTO_DEFER             0x01
1310
1311 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1312                                         __u8 type, __u8 *flags)
1313 {
1314         switch (type) {
1315         case ACL_LINK:
1316                 return l2cap_connect_ind(hdev, bdaddr);
1317
1318         case SCO_LINK:
1319         case ESCO_LINK:
1320                 return sco_connect_ind(hdev, bdaddr, flags);
1321
1322         default:
1323                 BT_ERR("unknown link type %d", type);
1324                 return -EINVAL;
1325         }
1326 }
1327
1328 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1329 {
1330         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1331                 return HCI_ERROR_REMOTE_USER_TERM;
1332
1333         return l2cap_disconn_ind(conn);
1334 }
1335
1336 /* ----- HCI callbacks ----- */
1337 struct hci_cb {
1338         struct list_head list;
1339
1340         char *name;
1341
1342         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1343         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1344         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1345                                                                 __u8 encrypt);
1346         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1347         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1348 };
1349
1350 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1351 {
1352         struct hci_cb *cb;
1353
1354         mutex_lock(&hci_cb_list_lock);
1355         list_for_each_entry(cb, &hci_cb_list, list) {
1356                 if (cb->connect_cfm)
1357                         cb->connect_cfm(conn, status);
1358         }
1359         mutex_unlock(&hci_cb_list_lock);
1360
1361         if (conn->connect_cfm_cb)
1362                 conn->connect_cfm_cb(conn, status);
1363 }
1364
1365 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1366 {
1367         struct hci_cb *cb;
1368
1369         mutex_lock(&hci_cb_list_lock);
1370         list_for_each_entry(cb, &hci_cb_list, list) {
1371                 if (cb->disconn_cfm)
1372                         cb->disconn_cfm(conn, reason);
1373         }
1374         mutex_unlock(&hci_cb_list_lock);
1375
1376         if (conn->disconn_cfm_cb)
1377                 conn->disconn_cfm_cb(conn, reason);
1378 }
1379
1380 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1381 {
1382         struct hci_cb *cb;
1383         __u8 encrypt;
1384
1385         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1386                 return;
1387
1388         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1389
1390         mutex_lock(&hci_cb_list_lock);
1391         list_for_each_entry(cb, &hci_cb_list, list) {
1392                 if (cb->security_cfm)
1393                         cb->security_cfm(conn, status, encrypt);
1394         }
1395         mutex_unlock(&hci_cb_list_lock);
1396
1397         if (conn->security_cfm_cb)
1398                 conn->security_cfm_cb(conn, status);
1399 }
1400
1401 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1402                                                                 __u8 encrypt)
1403 {
1404         struct hci_cb *cb;
1405
1406         if (conn->sec_level == BT_SECURITY_SDP)
1407                 conn->sec_level = BT_SECURITY_LOW;
1408
1409         if (conn->pending_sec_level > conn->sec_level)
1410                 conn->sec_level = conn->pending_sec_level;
1411
1412         mutex_lock(&hci_cb_list_lock);
1413         list_for_each_entry(cb, &hci_cb_list, list) {
1414                 if (cb->security_cfm)
1415                         cb->security_cfm(conn, status, encrypt);
1416         }
1417         mutex_unlock(&hci_cb_list_lock);
1418
1419         if (conn->security_cfm_cb)
1420                 conn->security_cfm_cb(conn, status);
1421 }
1422
1423 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1424 {
1425         struct hci_cb *cb;
1426
1427         mutex_lock(&hci_cb_list_lock);
1428         list_for_each_entry(cb, &hci_cb_list, list) {
1429                 if (cb->key_change_cfm)
1430                         cb->key_change_cfm(conn, status);
1431         }
1432         mutex_unlock(&hci_cb_list_lock);
1433 }
1434
1435 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1436                                                                 __u8 role)
1437 {
1438         struct hci_cb *cb;
1439
1440         mutex_lock(&hci_cb_list_lock);
1441         list_for_each_entry(cb, &hci_cb_list, list) {
1442                 if (cb->role_switch_cfm)
1443                         cb->role_switch_cfm(conn, status, role);
1444         }
1445         mutex_unlock(&hci_cb_list_lock);
1446 }
1447
1448 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1449                                  size_t *data_len)
1450 {
1451         size_t parsed = 0;
1452
1453         if (eir_len < 2)
1454                 return NULL;
1455
1456         while (parsed < eir_len - 1) {
1457                 u8 field_len = eir[0];
1458
1459                 if (field_len == 0)
1460                         break;
1461
1462                 parsed += field_len + 1;
1463
1464                 if (parsed > eir_len)
1465                         break;
1466
1467                 if (eir[1] != type) {
1468                         eir += field_len + 1;
1469                         continue;
1470                 }
1471
1472                 /* Zero length data */
1473                 if (field_len == 1)
1474                         return NULL;
1475
1476                 if (data_len)
1477                         *data_len = field_len - 1;
1478
1479                 return &eir[2];
1480         }
1481
1482         return NULL;
1483 }
1484
1485 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1486 {
1487         if (addr_type != ADDR_LE_DEV_RANDOM)
1488                 return false;
1489
1490         if ((bdaddr->b[5] & 0xc0) == 0x40)
1491                return true;
1492
1493         return false;
1494 }
1495
1496 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1497 {
1498         if (addr_type == ADDR_LE_DEV_PUBLIC)
1499                 return true;
1500
1501         /* Check for Random Static address type */
1502         if ((addr->b[5] & 0xc0) == 0xc0)
1503                 return true;
1504
1505         return false;
1506 }
1507
1508 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1509                                           bdaddr_t *bdaddr, u8 addr_type)
1510 {
1511         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1512                 return NULL;
1513
1514         return hci_find_irk_by_rpa(hdev, bdaddr);
1515 }
1516
1517 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1518                                         u16 to_multiplier)
1519 {
1520         u16 max_latency;
1521
1522         if (min > max || min < 6 || max > 3200)
1523                 return -EINVAL;
1524
1525         if (to_multiplier < 10 || to_multiplier > 3200)
1526                 return -EINVAL;
1527
1528         if (max >= to_multiplier * 8)
1529                 return -EINVAL;
1530
1531         max_latency = (to_multiplier * 4 / max) - 1;
1532         if (latency > 499 || latency > max_latency)
1533                 return -EINVAL;
1534
1535         return 0;
1536 }
1537
1538 int hci_register_cb(struct hci_cb *hcb);
1539 int hci_unregister_cb(struct hci_cb *hcb);
1540
1541 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1542                                const void *param, u32 timeout);
1543 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1544                                   const void *param, u8 event, u32 timeout);
1545 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1546                    const void *param);
1547
1548 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1549                  const void *param);
1550 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1551 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1552
1553 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1554
1555 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1556                              const void *param, u32 timeout);
1557
1558 /* ----- HCI Sockets ----- */
1559 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1560 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1561                          int flag, struct sock *skip_sk);
1562 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1563 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1564                                  void *data, u16 data_len, ktime_t tstamp,
1565                                  int flag, struct sock *skip_sk);
1566
1567 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1568
1569 #define HCI_MGMT_VAR_LEN        BIT(0)
1570 #define HCI_MGMT_NO_HDEV        BIT(1)
1571 #define HCI_MGMT_UNTRUSTED      BIT(2)
1572 #define HCI_MGMT_UNCONFIGURED   BIT(3)
1573
1574 struct hci_mgmt_handler {
1575         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1576                      u16 data_len);
1577         size_t data_len;
1578         unsigned long flags;
1579 };
1580
1581 struct hci_mgmt_chan {
1582         struct list_head list;
1583         unsigned short channel;
1584         size_t handler_count;
1585         const struct hci_mgmt_handler *handlers;
1586 #ifdef TIZEN_BT
1587         size_t tizen_handler_count;
1588         const struct hci_mgmt_handler *tizen_handlers;
1589 #endif
1590         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1591 };
1592
1593 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1594 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1595
1596 /* Management interface */
1597 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1598 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1599                                          BIT(BDADDR_LE_RANDOM))
1600 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1601                                          BIT(BDADDR_LE_PUBLIC) | \
1602                                          BIT(BDADDR_LE_RANDOM))
1603
1604 /* These LE scan and inquiry parameters were chosen according to LE General
1605  * Discovery Procedure specification.
1606  */
1607 #define DISCOV_LE_SCAN_WIN              0x12
1608 #define DISCOV_LE_SCAN_INT              0x12
1609 #define DISCOV_LE_TIMEOUT               10240   /* msec */
1610 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
1611 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
1612 #define DISCOV_BREDR_INQUIRY_LEN        0x08
1613 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
1614
1615 void mgmt_fill_version_info(void *ver);
1616 int mgmt_new_settings(struct hci_dev *hdev);
1617 void mgmt_index_added(struct hci_dev *hdev);
1618 void mgmt_index_removed(struct hci_dev *hdev);
1619 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1620 void mgmt_power_on(struct hci_dev *hdev, int err);
1621 void __mgmt_power_off(struct hci_dev *hdev);
1622 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1623                        bool persistent);
1624 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1625                            u32 flags, u8 *name, u8 name_len);
1626 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1627                               u8 link_type, u8 addr_type, u8 reason,
1628                               bool mgmt_connected);
1629 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1630                             u8 link_type, u8 addr_type, u8 status);
1631 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1632                          u8 addr_type, u8 status);
1633 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1634 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1635                                   u8 status);
1636 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1637                                       u8 status);
1638 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1639                               u8 link_type, u8 addr_type, u32 value,
1640                               u8 confirm_hint);
1641 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1642                                      u8 link_type, u8 addr_type, u8 status);
1643 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1644                                          u8 link_type, u8 addr_type, u8 status);
1645 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1646                               u8 link_type, u8 addr_type);
1647 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1648                                      u8 link_type, u8 addr_type, u8 status);
1649 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1650                                          u8 link_type, u8 addr_type, u8 status);
1651 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1652                              u8 link_type, u8 addr_type, u32 passkey,
1653                              u8 entered);
1654 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1655 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1656 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1657 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1658                                     u8 status);
1659 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1660 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1661 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1662 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1663                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1664                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1665 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1666                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1667 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1668 bool mgmt_powering_down(struct hci_dev *hdev);
1669 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1670 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1671 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1672                    bool persistent);
1673 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1674                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
1675                          u16 max_interval, u16 latency, u16 timeout);
1676 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1677 bool mgmt_get_connectable(struct hci_dev *hdev);
1678 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1679 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1680 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1681 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1682                             u8 instance);
1683 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1684                               u8 instance);
1685 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1686
1687 #ifdef TIZEN_BT
1688 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
1689                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1690 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
1691                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1692 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
1693                 void *data, u16 len);
1694 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
1695                 s8 alert_type, s8 rssi_dbm);
1696 void mgmt_raw_rssi_response(struct hci_dev *hdev,
1697                 struct hci_cc_rp_get_raw_rssi *rp, int success);
1698 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
1699 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
1700                 u8 name_len);
1701 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
1702 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
1703                 u8 dst_type, u16 conn_interval, u16 conn_latency,
1704                 u16 supervision_timeout);
1705 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1706                 u8 link_type, u8 addr_type, u8 status);
1707 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
1708 void mgmt_tx_timeout_error(struct hci_dev *hdev);
1709 /*  Pass adv type in the le device found */
1710 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1711                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
1712                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
1713 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
1714                 u8 state_change_reason, u16 connection_handle);
1715 void mgmt_6lowpan_conn_changed(struct hci_dev *hdev, char if_name[16],
1716                 bdaddr_t *bdaddr, u8 addr_type, bool connected);
1717 void mgmt_le_read_maximum_data_length_complete(struct hci_dev *hdev,
1718                 u8 status);
1719 void mgmt_le_write_host_suggested_data_length_complete(struct hci_dev *hdev,
1720                 u8 status);
1721 #endif
1722
1723 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1724                       u16 to_multiplier);
1725 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1726                       __u8 ltk[16], __u8 key_size);
1727
1728 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1729                                u8 *bdaddr_type);
1730
1731 #define SCO_AIRMODE_MASK       0x0003
1732 #define SCO_AIRMODE_CVSD       0x0000
1733 #define SCO_AIRMODE_TRANSP     0x0003
1734
1735 #endif /* __HCI_CORE_H */