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/idr.h>
  29 #include <linux/leds.h>
  30 #include <linux/rculist.h>
  31
  32 #include <net/bluetooth/hci.h>
  33 #include <net/bluetooth/hci_sync.h>
  34 #include <net/bluetooth/hci_sock.h>
  35
  36 /* HCI priority */
  37 #define HCI_PRIO_MAX    7
  38
  39 /* HCI maximum id value */
  40 #define HCI_MAX_ID 10000
  41
  42 /* HCI Core structures */
  43 struct inquiry_data {
  44         bdaddr_t        bdaddr;
  45         __u8            pscan_rep_mode;
  46         __u8            pscan_period_mode;
  47         __u8            pscan_mode;
  48         __u8            dev_class[3];
  49         __le16          clock_offset;
  50         __s8            rssi;
  51         __u8            ssp_mode;
  52 };
  53
  54 struct inquiry_entry {
  55         struct list_head        all;            /* inq_cache.all */
  56         struct list_head        list;           /* unknown or resolve */
  57         enum {
  58                 NAME_NOT_KNOWN,
  59                 NAME_NEEDED,
  60                 NAME_PENDING,
  61                 NAME_KNOWN,
  62         } name_state;
  63         __u32                   timestamp;
  64         struct inquiry_data     data;
  65 };
  66
  67 struct discovery_state {
  68         int                     type;
  69         enum {
  70                 DISCOVERY_STOPPED,
  71                 DISCOVERY_STARTING,
  72                 DISCOVERY_FINDING,
  73                 DISCOVERY_RESOLVING,
  74                 DISCOVERY_STOPPING,
  75         } state;
  76         struct list_head        all;    /* All devices found during inquiry */
  77         struct list_head        unknown;        /* Name state not known */
  78         struct list_head        resolve;        /* Name needs to be resolved */
  79         __u32                   timestamp;
  80         bdaddr_t                last_adv_addr;
  81         u8                      last_adv_addr_type;
  82         s8                      last_adv_rssi;
  83         u32                     last_adv_flags;
  84         u8                      last_adv_data[HCI_MAX_AD_LENGTH];
  85         u8                      last_adv_data_len;
  86         bool                    report_invalid_rssi;
  87         bool                    result_filtering;
  88         bool                    limited;
  89         s8                      rssi;
  90         u16                     uuid_count;
  91         u8                      (*uuids)[16];
  92         unsigned long           scan_start;
  93         unsigned long           scan_duration;
  94         unsigned long           name_resolve_timeout;
  95 };
  96
  97 #define SUSPEND_NOTIFIER_TIMEOUT        msecs_to_jiffies(2000) /* 2 seconds */
  98
  99 enum suspend_tasks {
 100         SUSPEND_PAUSE_DISCOVERY,
 101         SUSPEND_UNPAUSE_DISCOVERY,
 102
 103         SUSPEND_PAUSE_ADVERTISING,
 104         SUSPEND_UNPAUSE_ADVERTISING,
 105
 106         SUSPEND_SCAN_DISABLE,
 107         SUSPEND_SCAN_ENABLE,
 108         SUSPEND_DISCONNECTING,
 109
 110         SUSPEND_POWERING_DOWN,
 111
 112         SUSPEND_PREPARE_NOTIFIER,
 113
 114         SUSPEND_SET_ADV_FILTER,
 115         __SUSPEND_NUM_TASKS
 116 };
 117
 118 enum suspended_state {
 119         BT_RUNNING = 0,
 120         BT_SUSPEND_DISCONNECT,
 121         BT_SUSPEND_CONFIGURE_WAKE,
 122 };
 123
 124 struct hci_conn_hash {
 125         struct list_head list;
 126         unsigned int     acl_num;
 127         unsigned int     amp_num;
 128         unsigned int     sco_num;
 129         unsigned int     iso_num;
 130         unsigned int     le_num;
 131         unsigned int     le_num_peripheral;
 132 };
 133
 134 struct bdaddr_list {
 135         struct list_head list;
 136         bdaddr_t bdaddr;
 137         u8 bdaddr_type;
 138 };
 139
 140 struct codec_list {
 141         struct list_head list;
 142         u8      id;
 143         __u16   cid;
 144         __u16   vid;
 145         u8      transport;
 146         u8      num_caps;
 147         u32     len;
 148         struct hci_codec_caps caps[];
 149 };
 150
 151 struct bdaddr_list_with_irk {
 152         struct list_head list;
 153         bdaddr_t bdaddr;
 154         u8 bdaddr_type;
 155         u8 peer_irk[16];
 156         u8 local_irk[16];
 157 };
 158
 159 /* Bitmask of connection flags */
 160 enum hci_conn_flags {
 161         HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
 162         HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
 163 };
 164 typedef u8 hci_conn_flags_t;
 165
 166 struct bdaddr_list_with_flags {
 167         struct list_head list;
 168         bdaddr_t bdaddr;
 169         u8 bdaddr_type;
 170         hci_conn_flags_t flags;
 171 };
 172
 173 struct bt_uuid {
 174         struct list_head list;
 175         u8 uuid[16];
 176         u8 size;
 177         u8 svc_hint;
 178 };
 179
 180 struct blocked_key {
 181         struct list_head list;
 182         struct rcu_head rcu;
 183         u8 type;
 184         u8 val[16];
 185 };
 186
 187 struct smp_csrk {
 188         bdaddr_t bdaddr;
 189         u8 bdaddr_type;
 190         u8 type;
 191         u8 val[16];
 192 };
 193
 194 struct smp_ltk {
 195         struct list_head list;
 196         struct rcu_head rcu;
 197         bdaddr_t bdaddr;
 198         u8 bdaddr_type;
 199         u8 authenticated;
 200         u8 type;
 201         u8 enc_size;
 202         __le16 ediv;
 203         __le64 rand;
 204         u8 val[16];
 205 };
 206
 207 struct smp_irk {
 208         struct list_head list;
 209         struct rcu_head rcu;
 210         bdaddr_t rpa;
 211         bdaddr_t bdaddr;
 212         u8 addr_type;
 213         u8 val[16];
 214 };
 215
 216 struct link_key {
 217         struct list_head list;
 218         struct rcu_head rcu;
 219         bdaddr_t bdaddr;
 220         u8 type;
 221         u8 val[HCI_LINK_KEY_SIZE];
 222         u8 pin_len;
 223 };
 224
 225 struct oob_data {
 226         struct list_head list;
 227         bdaddr_t bdaddr;
 228         u8 bdaddr_type;
 229         u8 present;
 230         u8 hash192[16];
 231         u8 rand192[16];
 232         u8 hash256[16];
 233         u8 rand256[16];
 234 };
 235
 236 struct adv_info {
 237         struct list_head list;
 238         bool    enabled;
 239         bool    pending;
 240         bool    periodic;
 241         __u8    mesh;
 242         __u8    instance;
 243         __u32   flags;
 244         __u16   timeout;
 245         __u16   remaining_time;
 246         __u16   duration;
 247         __u16   adv_data_len;
 248         __u8    adv_data[HCI_MAX_EXT_AD_LENGTH];
 249         bool    adv_data_changed;
 250         __u16   scan_rsp_len;
 251         __u8    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 252         bool    scan_rsp_changed;
 253         __u16   per_adv_data_len;
 254         __u8    per_adv_data[HCI_MAX_PER_AD_LENGTH];
 255         __s8    tx_power;
 256         __u32   min_interval;
 257         __u32   max_interval;
 258         bdaddr_t        random_addr;
 259         bool            rpa_expired;
 260         struct delayed_work     rpa_expired_cb;
 261 };
 262
 263 #define HCI_MAX_ADV_INSTANCES           5
 264 #define HCI_DEFAULT_ADV_DURATION        2
 265
 266 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
 267
 268 #define DATA_CMP(_d1, _l1, _d2, _l2) \
 269         (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
 270
 271 #define ADV_DATA_CMP(_adv, _data, _len) \
 272         DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
 273
 274 #define SCAN_RSP_CMP(_adv, _data, _len) \
 275         DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
 276
 277 struct monitored_device {
 278         struct list_head list;
 279
 280         bdaddr_t bdaddr;
 281         __u8     addr_type;
 282         __u16    handle;
 283         bool     notified;
 284 };
 285
 286 struct adv_pattern {
 287         struct list_head list;
 288         __u8 ad_type;
 289         __u8 offset;
 290         __u8 length;
 291         __u8 value[HCI_MAX_AD_LENGTH];
 292 };
 293
 294 struct adv_rssi_thresholds {
 295         __s8 low_threshold;
 296         __s8 high_threshold;
 297         __u16 low_threshold_timeout;
 298         __u16 high_threshold_timeout;
 299         __u8 sampling_period;
 300 };
 301
 302 struct adv_monitor {
 303         struct list_head patterns;
 304         struct adv_rssi_thresholds rssi;
 305         __u16           handle;
 306
 307         enum {
 308                 ADV_MONITOR_STATE_NOT_REGISTERED,
 309                 ADV_MONITOR_STATE_REGISTERED,
 310                 ADV_MONITOR_STATE_OFFLOADED
 311         } state;
 312 };
 313
 314 #define HCI_MIN_ADV_MONITOR_HANDLE              1
 315 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES         32
 316 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS        16
 317 #define HCI_ADV_MONITOR_EXT_NONE                1
 318 #define HCI_ADV_MONITOR_EXT_MSFT                2
 319
 320 #define HCI_MAX_SHORT_NAME_LENGTH       10
 321
 322 #define HCI_CONN_HANDLE_UNSET           0xffff
 323 #define HCI_CONN_HANDLE_MAX             0x0eff
 324
 325 /* Min encryption key size to match with SMP */
 326 #define HCI_MIN_ENC_KEY_SIZE            7
 327
 328 /* Default LE RPA expiry time, 15 minutes */
 329 #define HCI_DEFAULT_RPA_TIMEOUT         (15 * 60)
 330
 331 /* Default min/max age of connection information (1s/3s) */
 332 #define DEFAULT_CONN_INFO_MIN_AGE       1000
 333 #define DEFAULT_CONN_INFO_MAX_AGE       3000
 334 /* Default authenticated payload timeout 30s */
 335 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
 336
 337 struct amp_assoc {
 338         __u16   len;
 339         __u16   offset;
 340         __u16   rem_len;
 341         __u16   len_so_far;
 342         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 343 };
 344
 345 #define HCI_MAX_PAGES   3
 346
 347 #ifdef TIZEN_BT
 348 #define HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH    100
 349 #endif
 350
 351 struct hci_dev {
 352         struct list_head list;
 353         struct mutex    lock;
 354
 355         char            name[8];
 356         unsigned long   flags;
 357         __u16           id;
 358         __u8            bus;
 359         __u8            dev_type;
 360         bdaddr_t        bdaddr;
 361         bdaddr_t        setup_addr;
 362         bdaddr_t        public_addr;
 363         bdaddr_t        random_addr;
 364         bdaddr_t        static_addr;
 365         __u8            adv_addr_type;
 366         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 367         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 368         __u8            eir[HCI_MAX_EIR_LENGTH];
 369         __u16           appearance;
 370         __u8            dev_class[3];
 371         __u8            major_class;
 372         __u8            minor_class;
 373         __u8            max_page;
 374         __u8            features[HCI_MAX_PAGES][8];
 375         __u8            le_features[8];
 376         __u8            le_accept_list_size;
 377         __u8            le_resolv_list_size;
 378         __u8            le_num_of_adv_sets;
 379         __u8            le_states[8];
 380         __u8            mesh_ad_types[16];
 381         __u8            mesh_send_ref;
 382         __u8            commands[64];
 383         __u8            hci_ver;
 384         __u16           hci_rev;
 385         __u8            lmp_ver;
 386         __u16           manufacturer;
 387         __u16           lmp_subver;
 388         __u16           voice_setting;
 389         __u8            num_iac;
 390         __u16           stored_max_keys;
 391         __u16           stored_num_keys;
 392         __u8            io_capability;
 393         __s8            inq_tx_power;
 394         __u8            err_data_reporting;
 395         __u16           page_scan_interval;
 396         __u16           page_scan_window;
 397         __u8            page_scan_type;
 398         __u8            le_adv_channel_map;
 399         __u16           le_adv_min_interval;
 400         __u16           le_adv_max_interval;
 401         __u8            le_scan_type;
 402         __u16           le_scan_interval;
 403         __u16           le_scan_window;
 404         __u16           le_scan_int_suspend;
 405         __u16           le_scan_window_suspend;
 406         __u16           le_scan_int_discovery;
 407         __u16           le_scan_window_discovery;
 408         __u16           le_scan_int_adv_monitor;
 409         __u16           le_scan_window_adv_monitor;
 410         __u16           le_scan_int_connect;
 411         __u16           le_scan_window_connect;
 412         __u16           le_conn_min_interval;
 413         __u16           le_conn_max_interval;
 414         __u16           le_conn_latency;
 415         __u16           le_supv_timeout;
 416         __u16           le_def_tx_len;
 417         __u16           le_def_tx_time;
 418         __u16           le_max_tx_len;
 419         __u16           le_max_tx_time;
 420         __u16           le_max_rx_len;
 421         __u16           le_max_rx_time;
 422         __u8            le_max_key_size;
 423         __u8            le_min_key_size;
 424         __u16           discov_interleaved_timeout;
 425         __u16           conn_info_min_age;
 426         __u16           conn_info_max_age;
 427         __u16           auth_payload_timeout;
 428         __u8            min_enc_key_size;
 429         __u8            max_enc_key_size;
 430         __u8            pairing_opts;
 431         __u8            ssp_debug_mode;
 432         __u8            hw_error_code;
 433         __u32           clock;
 434         __u16           advmon_allowlist_duration;
 435         __u16           advmon_no_filter_duration;
 436         __u8            enable_advmon_interleave_scan;
 437
 438         __u16           devid_source;
 439         __u16           devid_vendor;
 440         __u16           devid_product;
 441         __u16           devid_version;
 442
 443         __u8            def_page_scan_type;
 444         __u16           def_page_scan_int;
 445         __u16           def_page_scan_window;
 446         __u8            def_inq_scan_type;
 447         __u16           def_inq_scan_int;
 448         __u16           def_inq_scan_window;
 449         __u16           def_br_lsto;
 450         __u16           def_page_timeout;
 451         __u16           def_multi_adv_rotation_duration;
 452         __u16           def_le_autoconnect_timeout;
 453         __s8            min_le_tx_power;
 454         __s8            max_le_tx_power;
 455
 456         __u16           pkt_type;
 457         __u16           esco_type;
 458         __u16           link_policy;
 459         __u16           link_mode;
 460
 461         __u32           idle_timeout;
 462         __u16           sniff_min_interval;
 463         __u16           sniff_max_interval;
 464
 465         __u8            amp_status;
 466         __u32           amp_total_bw;
 467         __u32           amp_max_bw;
 468         __u32           amp_min_latency;
 469         __u32           amp_max_pdu;
 470         __u8            amp_type;
 471         __u16           amp_pal_cap;
 472         __u16           amp_assoc_size;
 473         __u32           amp_max_flush_to;
 474         __u32           amp_be_flush_to;
 475
 476         struct amp_assoc        loc_assoc;
 477
 478         __u8            flow_ctl_mode;
 479
 480         unsigned int    auto_accept_delay;
 481
 482         unsigned long   quirks;
 483
 484         atomic_t        cmd_cnt;
 485         unsigned int    acl_cnt;
 486         unsigned int    sco_cnt;
 487         unsigned int    le_cnt;
 488         unsigned int    iso_cnt;
 489
 490         unsigned int    acl_mtu;
 491         unsigned int    sco_mtu;
 492         unsigned int    le_mtu;
 493         unsigned int    iso_mtu;
 494         unsigned int    acl_pkts;
 495         unsigned int    sco_pkts;
 496         unsigned int    le_pkts;
 497         unsigned int    iso_pkts;
 498
 499         __u16           block_len;
 500         __u16           block_mtu;
 501         __u16           num_blocks;
 502         __u16           block_cnt;
 503
 504         unsigned long   acl_last_tx;
 505         unsigned long   sco_last_tx;
 506         unsigned long   le_last_tx;
 507
 508         __u8            le_tx_def_phys;
 509         __u8            le_rx_def_phys;
 510
 511         struct workqueue_struct *workqueue;
 512         struct workqueue_struct *req_workqueue;
 513
 514         struct work_struct      power_on;
 515         struct delayed_work     power_off;
 516         struct work_struct      error_reset;
 517         struct work_struct      cmd_sync_work;
 518         struct list_head        cmd_sync_work_list;
 519         struct mutex            cmd_sync_work_lock;
 520         struct mutex            unregister_lock;
 521         struct work_struct      cmd_sync_cancel_work;
 522         struct work_struct      reenable_adv_work;
 523
 524         __u16                   discov_timeout;
 525         struct delayed_work     discov_off;
 526
 527         struct delayed_work     service_cache;
 528
 529         struct delayed_work     cmd_timer;
 530         struct delayed_work     ncmd_timer;
 531
 532         struct work_struct      rx_work;
 533         struct work_struct      cmd_work;
 534         struct work_struct      tx_work;
 535
 536         struct delayed_work     le_scan_disable;
 537         struct delayed_work     le_scan_restart;
 538
 539         struct sk_buff_head     rx_q;
 540         struct sk_buff_head     raw_q;
 541         struct sk_buff_head     cmd_q;
 542
 543         struct sk_buff          *sent_cmd;
 544         struct sk_buff          *recv_event;
 545
 546         struct mutex            req_lock;
 547         wait_queue_head_t       req_wait_q;
 548         __u32                   req_status;
 549         __u32                   req_result;
 550         struct sk_buff          *req_skb;
 551
 552         void                    *smp_data;
 553         void                    *smp_bredr_data;
 554
 555         struct discovery_state  discovery;
 556
 557         int                     discovery_old_state;
 558         bool                    discovery_paused;
 559         int                     advertising_old_state;
 560         bool                    advertising_paused;
 561
 562         struct notifier_block   suspend_notifier;
 563         enum suspended_state    suspend_state_next;
 564         enum suspended_state    suspend_state;
 565         bool                    scanning_paused;
 566         bool                    suspended;
 567         u8                      wake_reason;
 568         bdaddr_t                wake_addr;
 569         u8                      wake_addr_type;
 570 #ifdef TIZEN_BT
 571         struct discovery_state  le_discovery;
 572 #endif
 573
 574         struct hci_conn_hash    conn_hash;
 575
 576         struct list_head        mesh_pending;
 577         struct list_head        mgmt_pending;
 578         struct list_head        reject_list;
 579         struct list_head        accept_list;
 580         struct list_head        uuids;
 581         struct list_head        link_keys;
 582         struct list_head        long_term_keys;
 583         struct list_head        identity_resolving_keys;
 584         struct list_head        remote_oob_data;
 585         struct list_head        le_accept_list;
 586         struct list_head        le_resolv_list;
 587         struct list_head        le_conn_params;
 588         struct list_head        pend_le_conns;
 589         struct list_head        pend_le_reports;
 590         struct list_head        blocked_keys;
 591         struct list_head        local_codecs;
 592
 593         struct hci_dev_stats    stat;
 594
 595         atomic_t                promisc;
 596
 597         const char              *hw_info;
 598         const char              *fw_info;
 599         struct dentry           *debugfs;
 600
 601         struct device           dev;
 602
 603         struct rfkill           *rfkill;
 604
 605         DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 606         hci_conn_flags_t        conn_flags;
 607
 608         __s8                    adv_tx_power;
 609         __u8                    adv_data[HCI_MAX_EXT_AD_LENGTH];
 610         __u8                    adv_data_len;
 611         __u8                    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 612         __u8                    scan_rsp_data_len;
 613         __u8                    per_adv_data[HCI_MAX_PER_AD_LENGTH];
 614         __u8                    per_adv_data_len;
 615
 616         struct list_head        adv_instances;
 617         unsigned int            adv_instance_cnt;
 618         __u8                    cur_adv_instance;
 619         __u16                   adv_instance_timeout;
 620         struct delayed_work     adv_instance_expire;
 621
 622         struct idr              adv_monitors_idr;
 623         unsigned int            adv_monitors_cnt;
 624
 625         __u8                    irk[16];
 626         __u32                   rpa_timeout;
 627         struct delayed_work     rpa_expired;
 628         bdaddr_t                rpa;
 629
 630         struct delayed_work     mesh_send_done;
 631
 632         enum {
 633                 INTERLEAVE_SCAN_NONE,
 634                 INTERLEAVE_SCAN_NO_FILTER,
 635                 INTERLEAVE_SCAN_ALLOWLIST
 636         } interleave_scan_state;
 637
 638         struct delayed_work     interleave_scan;
 639
 640         struct list_head        monitored_devices;
 641         bool                    advmon_pend_notify;
 642
 643 #if IS_ENABLED(CONFIG_BT_LEDS)
 644         struct led_trigger      *power_led;
 645 #endif
 646
 647 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
 648         __u16                   msft_opcode;
 649         void                    *msft_data;
 650         bool                    msft_curve_validity;
 651 #endif
 652
 653 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
 654         bool                    aosp_capable;
 655         bool                    aosp_quality_report;
 656 #endif
 657
 658 #ifdef TIZEN_BT
 659         __u8                    adv_filter_policy;
 660         __u8                    adv_type;
 661         __u8                    manufacturer_len;
 662         __u8                    manufacturer_data[HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH];
 663 #endif
 664
 665         int (*open)(struct hci_dev *hdev);
 666         int (*close)(struct hci_dev *hdev);
 667         int (*flush)(struct hci_dev *hdev);
 668         int (*setup)(struct hci_dev *hdev);
 669         int (*shutdown)(struct hci_dev *hdev);
 670         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 671         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 672         void (*hw_error)(struct hci_dev *hdev, u8 code);
 673         int (*post_init)(struct hci_dev *hdev);
 674         int (*set_diag)(struct hci_dev *hdev, bool enable);
 675         int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 676         void (*cmd_timeout)(struct hci_dev *hdev);
 677         bool (*wakeup)(struct hci_dev *hdev);
 678         int (*set_quality_report)(struct hci_dev *hdev, bool enable);
 679         int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
 680         int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
 681                                      struct bt_codec *codec, __u8 *vnd_len,
 682                                      __u8 **vnd_data);
 683 };
 684
 685 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 686
 687 enum conn_reasons {
 688         CONN_REASON_PAIR_DEVICE,
 689         CONN_REASON_L2CAP_CHAN,
 690         CONN_REASON_SCO_CONNECT,
 691         CONN_REASON_ISO_CONNECT,
 692 };
 693
 694 struct hci_conn {
 695         struct list_head list;
 696
 697         atomic_t        refcnt;
 698
 699         bdaddr_t        dst;
 700         __u8            dst_type;
 701         bdaddr_t        src;
 702         __u8            src_type;
 703         bdaddr_t        init_addr;
 704         __u8            init_addr_type;
 705         bdaddr_t        resp_addr;
 706         __u8            resp_addr_type;
 707         __u8            adv_instance;
 708         __u16           handle;
 709         __u16           sync_handle;
 710         __u16           state;
 711         __u8            mode;
 712         __u8            type;
 713         __u8            role;
 714         bool            out;
 715         __u8            attempt;
 716         __u8            dev_class[3];
 717         __u8            features[HCI_MAX_PAGES][8];
 718         __u16           pkt_type;
 719         __u16           link_policy;
 720         __u8            key_type;
 721         __u8            auth_type;
 722         __u8            sec_level;
 723         __u8            pending_sec_level;
 724         __u8            pin_length;
 725         __u8            enc_key_size;
 726         __u8            io_capability;
 727         __u32           passkey_notify;
 728         __u8            passkey_entered;
 729         __u16           disc_timeout;
 730         __u16           conn_timeout;
 731         __u16           setting;
 732         __u16           auth_payload_timeout;
 733         __u16           le_conn_min_interval;
 734         __u16           le_conn_max_interval;
 735         __u16           le_conn_interval;
 736         __u16           le_conn_latency;
 737         __u16           le_supv_timeout;
 738         __u8            le_adv_data[HCI_MAX_AD_LENGTH];
 739         __u8            le_adv_data_len;
 740         __u8            le_per_adv_data[HCI_MAX_PER_AD_LENGTH];
 741         __u8            le_per_adv_data_len;
 742         __u8            le_tx_phy;
 743         __u8            le_rx_phy;
 744         __s8            rssi;
 745         __s8            tx_power;
 746         __s8            max_tx_power;
 747         struct bt_iso_qos iso_qos;
 748         unsigned long   flags;
 749
 750         enum conn_reasons conn_reason;
 751
 752         __u32           clock;
 753         __u16           clock_accuracy;
 754
 755         unsigned long   conn_info_timestamp;
 756
 757         __u8            remote_cap;
 758         __u8            remote_auth;
 759         __u8            remote_id;
 760
 761         unsigned int    sent;
 762
 763         struct sk_buff_head data_q;
 764         struct list_head chan_list;
 765
 766         struct delayed_work disc_work;
 767         struct delayed_work auto_accept_work;
 768         struct delayed_work idle_work;
 769         struct delayed_work le_conn_timeout;
 770         struct work_struct  le_scan_cleanup;
 771
 772         struct device   dev;
 773         struct dentry   *debugfs;
 774
 775         struct hci_dev  *hdev;
 776         void            *l2cap_data;
 777         void            *sco_data;
 778         void            *iso_data;
 779         struct amp_mgr  *amp_mgr;
 780
 781 #ifdef TIZEN_BT
 782         bool            rssi_monitored;
 783         __u8            sco_role;
 784         __u16           voice_setting;
 785 #endif
 786         struct hci_conn *link;
 787         struct bt_codec codec;
 788
 789         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 790         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 791         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 792
 793         void (*cleanup)(struct hci_conn *conn);
 794 };
 795
 796 struct hci_chan {
 797         struct list_head list;
 798         __u16 handle;
 799         struct hci_conn *conn;
 800         struct sk_buff_head data_q;
 801         unsigned int    sent;
 802         __u8            state;
 803         bool            amp;
 804 };
 805
 806 struct hci_conn_params {
 807         struct list_head list;
 808         struct list_head action;
 809
 810         bdaddr_t addr;
 811         u8 addr_type;
 812
 813         u16 conn_min_interval;
 814         u16 conn_max_interval;
 815         u16 conn_latency;
 816         u16 supervision_timeout;
 817
 818         enum {
 819                 HCI_AUTO_CONN_DISABLED,
 820                 HCI_AUTO_CONN_REPORT,
 821                 HCI_AUTO_CONN_DIRECT,
 822                 HCI_AUTO_CONN_ALWAYS,
 823                 HCI_AUTO_CONN_LINK_LOSS,
 824                 HCI_AUTO_CONN_EXPLICIT,
 825         } auto_connect;
 826
 827         struct hci_conn *conn;
 828         bool explicit_connect;
 829         hci_conn_flags_t flags;
 830         u8  privacy_mode;
 831 };
 832
 833 extern struct list_head hci_dev_list;
 834 extern struct list_head hci_cb_list;
 835 extern rwlock_t hci_dev_list_lock;
 836 extern struct mutex hci_cb_list_lock;
 837
 838 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 839 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 840 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 841 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 842 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 843 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 844 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 845
 846 #define hci_dev_clear_volatile_flags(hdev)                      \
 847         do {                                                    \
 848                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 849                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 850                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 851                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 852                 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);   \
 853         } while (0)
 854
 855 #define hci_dev_le_state_simultaneous(hdev) \
 856         (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
 857          (hdev->le_states[4] & 0x08) && /* Central */ \
 858          (hdev->le_states[4] & 0x40) && /* Peripheral */ \
 859          (hdev->le_states[3] & 0x10))   /* Simultaneous */
 860
 861 /* ----- HCI interface to upper protocols ----- */
 862 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 863 int l2cap_disconn_ind(struct hci_conn *hcon);
 864 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 865
 866 #if IS_ENABLED(CONFIG_BT_BREDR)
 867 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 868 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 869 #else
 870 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 871                                   __u8 *flags)
 872 {
 873         return 0;
 874 }
 875
 876 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 877 {
 878 }
 879 #endif
 880
 881 #if IS_ENABLED(CONFIG_BT_LE)
 882 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 883 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 884 #else
 885 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 886                                   __u8 *flags)
 887 {
 888         return 0;
 889 }
 890 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
 891                             u16 flags)
 892 {
 893 }
 894 #endif
 895
 896 /* ----- Inquiry cache ----- */
 897 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 898 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 899
 900 static inline void discovery_init(struct hci_dev *hdev)
 901 {
 902         hdev->discovery.state = DISCOVERY_STOPPED;
 903         INIT_LIST_HEAD(&hdev->discovery.all);
 904         INIT_LIST_HEAD(&hdev->discovery.unknown);
 905         INIT_LIST_HEAD(&hdev->discovery.resolve);
 906         hdev->discovery.report_invalid_rssi = true;
 907         hdev->discovery.rssi = HCI_RSSI_INVALID;
 908 }
 909
 910 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 911 {
 912         hdev->discovery.result_filtering = false;
 913         hdev->discovery.report_invalid_rssi = true;
 914         hdev->discovery.rssi = HCI_RSSI_INVALID;
 915         hdev->discovery.uuid_count = 0;
 916         kfree(hdev->discovery.uuids);
 917         hdev->discovery.uuids = NULL;
 918         hdev->discovery.scan_start = 0;
 919         hdev->discovery.scan_duration = 0;
 920 }
 921
 922 bool hci_discovery_active(struct hci_dev *hdev);
 923
 924 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 925
 926 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 927 {
 928         return list_empty(&hdev->discovery.all);
 929 }
 930
 931 static inline long inquiry_cache_age(struct hci_dev *hdev)
 932 {
 933         struct discovery_state *c = &hdev->discovery;
 934         return jiffies - c->timestamp;
 935 }
 936
 937 static inline long inquiry_entry_age(struct inquiry_entry *e)
 938 {
 939         return jiffies - e->timestamp;
 940 }
 941
 942 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 943                                                bdaddr_t *bdaddr);
 944 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 945                                                        bdaddr_t *bdaddr);
 946 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 947                                                        bdaddr_t *bdaddr,
 948                                                        int state);
 949 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 950                                       struct inquiry_entry *ie);
 951 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 952                              bool name_known);
 953 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 954
 955 /* ----- HCI Connections ----- */
 956 #ifdef TIZEN_BT
 957 #define LINK_SUPERVISION_TIMEOUT        0x1F40   /* n * 0.625 = 5 seconds */
 958 #endif /* TIZEN_BT */
 959
 960 enum {
 961         HCI_CONN_AUTH_PEND,
 962         HCI_CONN_REAUTH_PEND,
 963         HCI_CONN_ENCRYPT_PEND,
 964         HCI_CONN_RSWITCH_PEND,
 965         HCI_CONN_MODE_CHANGE_PEND,
 966         HCI_CONN_SCO_SETUP_PEND,
 967         HCI_CONN_MGMT_CONNECTED,
 968         HCI_CONN_SSP_ENABLED,
 969         HCI_CONN_SC_ENABLED,
 970         HCI_CONN_AES_CCM,
 971         HCI_CONN_POWER_SAVE,
 972         HCI_CONN_FLUSH_KEY,
 973         HCI_CONN_ENCRYPT,
 974         HCI_CONN_AUTH,
 975         HCI_CONN_SECURE,
 976         HCI_CONN_FIPS,
 977         HCI_CONN_STK_ENCRYPT,
 978         HCI_CONN_AUTH_INITIATOR,
 979         HCI_CONN_DROP,
 980         HCI_CONN_CANCEL,
 981         HCI_CONN_PARAM_REMOVAL_PEND,
 982         HCI_CONN_NEW_LINK_KEY,
 983         HCI_CONN_SCANNING,
 984         HCI_CONN_AUTH_FAILURE,
 985         HCI_CONN_PER_ADV,
 986 };
 987
 988 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 989 {
 990         struct hci_dev *hdev = conn->hdev;
 991         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 992                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 993 }
 994
 995 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 996 {
 997         struct hci_dev *hdev = conn->hdev;
 998         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 999                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
1000 }
1001
1002 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
1003 {
1004         struct hci_conn_hash *h = &hdev->conn_hash;
1005         list_add_rcu(&c->list, &h->list);
1006         switch (c->type) {
1007         case ACL_LINK:
1008                 h->acl_num++;
1009                 break;
1010         case AMP_LINK:
1011                 h->amp_num++;
1012                 break;
1013         case LE_LINK:
1014                 h->le_num++;
1015                 if (c->role == HCI_ROLE_SLAVE)
1016                         h->le_num_peripheral++;
1017                 break;
1018         case SCO_LINK:
1019         case ESCO_LINK:
1020                 h->sco_num++;
1021                 break;
1022         case ISO_LINK:
1023                 h->iso_num++;
1024                 break;
1025         }
1026 }
1027
1028 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1029 {
1030         struct hci_conn_hash *h = &hdev->conn_hash;
1031
1032         list_del_rcu(&c->list);
1033         synchronize_rcu();
1034
1035         switch (c->type) {
1036         case ACL_LINK:
1037                 h->acl_num--;
1038                 break;
1039         case AMP_LINK:
1040                 h->amp_num--;
1041                 break;
1042         case LE_LINK:
1043                 h->le_num--;
1044                 if (c->role == HCI_ROLE_SLAVE)
1045                         h->le_num_peripheral--;
1046                 break;
1047         case SCO_LINK:
1048         case ESCO_LINK:
1049                 h->sco_num--;
1050                 break;
1051         case ISO_LINK:
1052                 h->iso_num--;
1053                 break;
1054         }
1055 }
1056
1057 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1058 {
1059         struct hci_conn_hash *h = &hdev->conn_hash;
1060         switch (type) {
1061         case ACL_LINK:
1062                 return h->acl_num;
1063         case AMP_LINK:
1064                 return h->amp_num;
1065         case LE_LINK:
1066                 return h->le_num;
1067         case SCO_LINK:
1068         case ESCO_LINK:
1069                 return h->sco_num;
1070         case ISO_LINK:
1071                 return h->iso_num;
1072         default:
1073                 return 0;
1074         }
1075 }
1076
1077 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1078 {
1079         struct hci_conn_hash *c = &hdev->conn_hash;
1080
1081         return c->acl_num + c->amp_num + c->sco_num + c->le_num + c->iso_num;
1082 }
1083
1084 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1085 {
1086         struct hci_conn_hash *h = &hdev->conn_hash;
1087         struct hci_conn *c;
1088         __u8 type = INVALID_LINK;
1089
1090         rcu_read_lock();
1091
1092         list_for_each_entry_rcu(c, &h->list, list) {
1093                 if (c->handle == handle) {
1094                         type = c->type;
1095                         break;
1096                 }
1097         }
1098
1099         rcu_read_unlock();
1100
1101         return type;
1102 }
1103
1104 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1105                                                         bdaddr_t *ba,
1106                                                         __u8 big, __u8 bis)
1107 {
1108         struct hci_conn_hash *h = &hdev->conn_hash;
1109         struct hci_conn  *c;
1110
1111         rcu_read_lock();
1112
1113         list_for_each_entry_rcu(c, &h->list, list) {
1114                 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1115                         continue;
1116
1117                 if (c->iso_qos.big == big && c->iso_qos.bis == bis) {
1118                         rcu_read_unlock();
1119                         return c;
1120                 }
1121         }
1122         rcu_read_unlock();
1123
1124         return NULL;
1125 }
1126
1127 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1128                                                                 __u16 handle)
1129 {
1130         struct hci_conn_hash *h = &hdev->conn_hash;
1131         struct hci_conn  *c;
1132
1133         rcu_read_lock();
1134
1135         list_for_each_entry_rcu(c, &h->list, list) {
1136                 if (c->handle == handle) {
1137                         rcu_read_unlock();
1138                         return c;
1139                 }
1140         }
1141         rcu_read_unlock();
1142
1143         return NULL;
1144 }
1145
1146 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1147                                                         __u8 type, bdaddr_t *ba)
1148 {
1149         struct hci_conn_hash *h = &hdev->conn_hash;
1150         struct hci_conn  *c;
1151
1152         rcu_read_lock();
1153
1154         list_for_each_entry_rcu(c, &h->list, list) {
1155                 if (c->type == type && !bacmp(&c->dst, ba)) {
1156                         rcu_read_unlock();
1157                         return c;
1158                 }
1159         }
1160
1161         rcu_read_unlock();
1162
1163         return NULL;
1164 }
1165
1166 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1167                                                        bdaddr_t *ba,
1168                                                        __u8 ba_type)
1169 {
1170         struct hci_conn_hash *h = &hdev->conn_hash;
1171         struct hci_conn  *c;
1172
1173         rcu_read_lock();
1174
1175         list_for_each_entry_rcu(c, &h->list, list) {
1176                 if (c->type != LE_LINK)
1177                        continue;
1178
1179                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1180                         rcu_read_unlock();
1181                         return c;
1182                 }
1183         }
1184
1185         rcu_read_unlock();
1186
1187         return NULL;
1188 }
1189
1190 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1191                                                         bdaddr_t *ba,
1192                                                         __u8 ba_type)
1193 {
1194         struct hci_conn_hash *h = &hdev->conn_hash;
1195         struct hci_conn  *c;
1196
1197         rcu_read_lock();
1198
1199         list_for_each_entry_rcu(c, &h->list, list) {
1200                 if (c->type != ISO_LINK)
1201                         continue;
1202
1203                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1204                         rcu_read_unlock();
1205                         return c;
1206                 }
1207         }
1208
1209         rcu_read_unlock();
1210
1211         return NULL;
1212 }
1213
1214 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1215                                                         __u8 handle)
1216 {
1217         struct hci_conn_hash *h = &hdev->conn_hash;
1218         struct hci_conn  *c;
1219
1220         rcu_read_lock();
1221
1222         list_for_each_entry_rcu(c, &h->list, list) {
1223                 if (c->type != ISO_LINK)
1224                         continue;
1225
1226                 if (handle == c->iso_qos.cig) {
1227                         rcu_read_unlock();
1228                         return c;
1229                 }
1230         }
1231
1232         rcu_read_unlock();
1233
1234         return NULL;
1235 }
1236
1237 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1238                                                         __u8 handle)
1239 {
1240         struct hci_conn_hash *h = &hdev->conn_hash;
1241         struct hci_conn  *c;
1242
1243         rcu_read_lock();
1244
1245         list_for_each_entry_rcu(c, &h->list, list) {
1246                 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1247                         continue;
1248
1249                 if (handle == c->iso_qos.big) {
1250                         rcu_read_unlock();
1251                         return c;
1252                 }
1253         }
1254
1255         rcu_read_unlock();
1256
1257         return NULL;
1258 }
1259
1260 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1261                                                         __u8 type, __u16 state)
1262 {
1263         struct hci_conn_hash *h = &hdev->conn_hash;
1264         struct hci_conn  *c;
1265
1266         rcu_read_lock();
1267
1268         list_for_each_entry_rcu(c, &h->list, list) {
1269                 if (c->type == type && c->state == state) {
1270                         rcu_read_unlock();
1271                         return c;
1272                 }
1273         }
1274
1275         rcu_read_unlock();
1276
1277         return NULL;
1278 }
1279
1280 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
1281 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1282                                             hci_conn_func_t func, __u8 type,
1283                                             __u16 state, void *data)
1284 {
1285         struct hci_conn_hash *h = &hdev->conn_hash;
1286         struct hci_conn  *c;
1287
1288         if (!func)
1289                 return;
1290
1291         rcu_read_lock();
1292
1293         list_for_each_entry_rcu(c, &h->list, list) {
1294                 if (c->type == type && c->state == state)
1295                         func(c, data);
1296         }
1297
1298         rcu_read_unlock();
1299 }
1300
1301 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1302 {
1303         struct hci_conn_hash *h = &hdev->conn_hash;
1304         struct hci_conn  *c;
1305
1306         rcu_read_lock();
1307
1308         list_for_each_entry_rcu(c, &h->list, list) {
1309                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1310                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1311                         rcu_read_unlock();
1312                         return c;
1313                 }
1314         }
1315
1316         rcu_read_unlock();
1317
1318         return NULL;
1319 }
1320
1321 #ifdef TIZEN_BT
1322 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1323                                         __u8 type, bdaddr_t *ba, bool value)
1324 {
1325         struct hci_conn_hash *h = &hdev->conn_hash;
1326         struct hci_conn  *c;
1327         __u8 conn_type;
1328
1329         if (type == 0x01)
1330                 conn_type = LE_LINK;
1331         else
1332                 conn_type = ACL_LINK;
1333
1334         rcu_read_lock();
1335
1336         list_for_each_entry_rcu(c, &h->list, list) {
1337                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1338                         c->rssi_monitored = value;
1339                         rcu_read_unlock();
1340                         return true;
1341                 }
1342         }
1343
1344         rcu_read_unlock();
1345         return false;
1346 }
1347
1348 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1349                                         __u8 type)
1350 {
1351         struct hci_conn_hash *h = &hdev->conn_hash;
1352         struct hci_conn  *c;
1353         __u8 conn_type;
1354
1355         if (type == 0x01)
1356                 conn_type = LE_LINK;
1357         else
1358                 conn_type = ACL_LINK;
1359
1360         rcu_read_lock();
1361         list_for_each_entry_rcu(c, &h->list, list) {
1362                 if (c->type == conn_type)
1363                         c->rssi_monitored = false;
1364         }
1365         rcu_read_unlock();
1366 }
1367
1368 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1369 {
1370         struct hci_conn_hash *h = &hdev->conn_hash;
1371         struct hci_conn  *c;
1372         int count = 0;
1373
1374         rcu_read_lock();
1375         list_for_each_entry_rcu(c, &h->list, list) {
1376                 if (c->rssi_monitored == true)
1377                         ++count;
1378         }
1379         rcu_read_unlock();
1380
1381         return count;
1382 }
1383
1384 int hci_conn_change_supervision_timeout(struct hci_conn *conn, __u16 timeout);
1385 bool hci_le_discovery_active(struct hci_dev *hdev);
1386 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1387
1388 static inline struct hci_conn *hci_conn_hash_lookup_sco(struct hci_dev *hdev)
1389 {
1390         struct hci_conn_hash *h = &hdev->conn_hash;
1391         struct hci_conn  *c;
1392
1393         rcu_read_lock();
1394         list_for_each_entry_rcu(c, &h->list, list) {
1395                 if (c->type == SCO_LINK || c->type == ESCO_LINK) {
1396                         rcu_read_unlock();
1397                         return c;
1398                 }
1399         }
1400         rcu_read_unlock();
1401
1402         return NULL;
1403 }
1404 #endif
1405
1406 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1407 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1408 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1409 bool hci_iso_setup_path(struct hci_conn *conn);
1410 int hci_le_create_cis(struct hci_conn *conn);
1411
1412 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1413                               u8 role);
1414 int hci_conn_del(struct hci_conn *conn);
1415 void hci_conn_hash_flush(struct hci_dev *hdev);
1416 void hci_conn_check_pending(struct hci_dev *hdev);
1417
1418 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1419 void hci_chan_del(struct hci_chan *chan);
1420 void hci_chan_list_flush(struct hci_conn *conn);
1421 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1422
1423 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1424                                      u8 dst_type, u8 sec_level,
1425                                      u16 conn_timeout,
1426                                      enum conn_reasons conn_reason);
1427 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1428                                 u8 dst_type, bool dst_resolved, u8 sec_level,
1429                                 u16 conn_timeout, u8 role);
1430 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1431                                  u8 sec_level, u8 auth_type,
1432                                  enum conn_reasons conn_reason);
1433 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1434                                  __u16 setting, struct bt_codec *codec);
1435 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1436                               __u8 dst_type, struct bt_iso_qos *qos);
1437 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1438                                  __u8 dst_type, struct bt_iso_qos *qos);
1439 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1440                                  __u8 dst_type, struct bt_iso_qos *qos,
1441                                  __u8 data_len, __u8 *data);
1442 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1443                        __u8 sid);
1444 int hci_le_big_create_sync(struct hci_dev *hdev, struct bt_iso_qos *qos,
1445                            __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1446 int hci_conn_check_link_mode(struct hci_conn *conn);
1447 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1448 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1449                       bool initiator);
1450 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1451
1452 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1453
1454 void hci_conn_failed(struct hci_conn *conn, u8 status);
1455
1456 /*
1457  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1458  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1459  * working or anything else. They just guarantee that the object is available
1460  * and can be dereferenced. So you can use its locks, local variables and any
1461  * other constant data.
1462  * Before accessing runtime data, you _must_ lock the object and then check that
1463  * it is still running. As soon as you release the locks, the connection might
1464  * get dropped, though.
1465  *
1466  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1467  * how long the underlying connection is held. So every channel that runs on the
1468  * hci_conn object calls this to prevent the connection from disappearing. As
1469  * long as you hold a device, you must also guarantee that you have a valid
1470  * reference to the device via hci_conn_get() (or the initial reference from
1471  * hci_conn_add()).
1472  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1473  * break because nobody cares for that. But this means, we cannot use
1474  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1475  */
1476
1477 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1478 {
1479         get_device(&conn->dev);
1480         return conn;
1481 }
1482
1483 static inline void hci_conn_put(struct hci_conn *conn)
1484 {
1485         put_device(&conn->dev);
1486 }
1487
1488 static inline void hci_conn_hold(struct hci_conn *conn)
1489 {
1490         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1491
1492         atomic_inc(&conn->refcnt);
1493         cancel_delayed_work(&conn->disc_work);
1494 }
1495
1496 static inline void hci_conn_drop(struct hci_conn *conn)
1497 {
1498         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1499
1500         if (atomic_dec_and_test(&conn->refcnt)) {
1501                 unsigned long timeo;
1502
1503                 switch (conn->type) {
1504                 case ACL_LINK:
1505                 case LE_LINK:
1506                         cancel_delayed_work(&conn->idle_work);
1507                         if (conn->state == BT_CONNECTED) {
1508                                 timeo = conn->disc_timeout;
1509                                 if (!conn->out)
1510                                         timeo *= 2;
1511                         } else {
1512                                 timeo = 0;
1513                         }
1514                         break;
1515
1516                 case AMP_LINK:
1517                         timeo = conn->disc_timeout;
1518                         break;
1519
1520                 default:
1521                         timeo = 0;
1522                         break;
1523                 }
1524
1525                 cancel_delayed_work(&conn->disc_work);
1526                 queue_delayed_work(conn->hdev->workqueue,
1527                                    &conn->disc_work, timeo);
1528         }
1529 }
1530
1531 /* ----- HCI Devices ----- */
1532 static inline void hci_dev_put(struct hci_dev *d)
1533 {
1534         BT_DBG("%s orig refcnt %d", d->name,
1535                kref_read(&d->dev.kobj.kref));
1536
1537         put_device(&d->dev);
1538 }
1539
1540 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1541 {
1542         BT_DBG("%s orig refcnt %d", d->name,
1543                kref_read(&d->dev.kobj.kref));
1544
1545         get_device(&d->dev);
1546         return d;
1547 }
1548
1549 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1550 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1551
1552 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1553 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1554
1555 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1556 {
1557         return dev_get_drvdata(&hdev->dev);
1558 }
1559
1560 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1561 {
1562         dev_set_drvdata(&hdev->dev, data);
1563 }
1564
1565 static inline void *hci_get_priv(struct hci_dev *hdev)
1566 {
1567         return (char *)hdev + sizeof(*hdev);
1568 }
1569
1570 struct hci_dev *hci_dev_get(int index);
1571 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1572
1573 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1574
1575 static inline struct hci_dev *hci_alloc_dev(void)
1576 {
1577         return hci_alloc_dev_priv(0);
1578 }
1579
1580 void hci_free_dev(struct hci_dev *hdev);
1581 int hci_register_dev(struct hci_dev *hdev);
1582 void hci_unregister_dev(struct hci_dev *hdev);
1583 void hci_release_dev(struct hci_dev *hdev);
1584 int hci_register_suspend_notifier(struct hci_dev *hdev);
1585 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1586 int hci_suspend_dev(struct hci_dev *hdev);
1587 int hci_resume_dev(struct hci_dev *hdev);
1588 int hci_reset_dev(struct hci_dev *hdev);
1589 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1590 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1591 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1592 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1593
1594 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1595 {
1596 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1597         hdev->msft_opcode = opcode;
1598 #endif
1599 }
1600
1601 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1602 {
1603 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1604         hdev->aosp_capable = true;
1605 #endif
1606 }
1607
1608 int hci_dev_open(__u16 dev);
1609 int hci_dev_close(__u16 dev);
1610 int hci_dev_do_close(struct hci_dev *hdev);
1611 int hci_dev_reset(__u16 dev);
1612 int hci_dev_reset_stat(__u16 dev);
1613 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1614 int hci_get_dev_list(void __user *arg);
1615 int hci_get_dev_info(void __user *arg);
1616 int hci_get_conn_list(void __user *arg);
1617 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1618 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1619 #ifdef TIZEN_BT
1620 u32 get_link_mode(struct hci_conn *conn);
1621 #endif
1622 int hci_inquiry(void __user *arg);
1623
1624 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1625                                            bdaddr_t *bdaddr, u8 type);
1626 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1627                                     struct list_head *list, bdaddr_t *bdaddr,
1628                                     u8 type);
1629 struct bdaddr_list_with_flags *
1630 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1631                                   u8 type);
1632 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1633 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1634                                  u8 type, u8 *peer_irk, u8 *local_irk);
1635 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1636                                    u8 type, u32 flags);
1637 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1638 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1639                                  u8 type);
1640 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1641                                    u8 type);
1642 void hci_bdaddr_list_clear(struct list_head *list);
1643
1644 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1645                                                bdaddr_t *addr, u8 addr_type);
1646 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1647                                             bdaddr_t *addr, u8 addr_type);
1648 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1649 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1650
1651 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1652                                                   bdaddr_t *addr,
1653                                                   u8 addr_type);
1654
1655 void hci_uuids_clear(struct hci_dev *hdev);
1656
1657 void hci_link_keys_clear(struct hci_dev *hdev);
1658 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1659 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1660                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1661                                   u8 pin_len, bool *persistent);
1662 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1663                             u8 addr_type, u8 type, u8 authenticated,
1664                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1665 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1666                              u8 addr_type, u8 role);
1667 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1668 void hci_smp_ltks_clear(struct hci_dev *hdev);
1669 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1670
1671 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1672 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1673                                      u8 addr_type);
1674 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1675                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1676 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1677 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1678 void hci_blocked_keys_clear(struct hci_dev *hdev);
1679 void hci_smp_irks_clear(struct hci_dev *hdev);
1680
1681 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1682
1683 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1684 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1685                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1686 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1687                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1688                             u8 *hash256, u8 *rand256);
1689 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1690                                u8 bdaddr_type);
1691
1692 void hci_adv_instances_clear(struct hci_dev *hdev);
1693 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1694 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1695 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1696                                       u32 flags, u16 adv_data_len, u8 *adv_data,
1697                                       u16 scan_rsp_len, u8 *scan_rsp_data,
1698                                       u16 timeout, u16 duration, s8 tx_power,
1699                                       u32 min_interval, u32 max_interval,
1700                                       u8 mesh_handle);
1701 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1702                                       u32 flags, u8 data_len, u8 *data,
1703                                       u32 min_interval, u32 max_interval);
1704 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1705                          u16 adv_data_len, u8 *adv_data,
1706                          u16 scan_rsp_len, u8 *scan_rsp_data);
1707 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1708 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1709 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1710 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1711
1712 void hci_adv_monitors_clear(struct hci_dev *hdev);
1713 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1714 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1715 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1716 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1717 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1718 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1719
1720 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1721
1722 void hci_init_sysfs(struct hci_dev *hdev);
1723 void hci_conn_init_sysfs(struct hci_conn *conn);
1724 void hci_conn_add_sysfs(struct hci_conn *conn);
1725 void hci_conn_del_sysfs(struct hci_conn *conn);
1726
1727 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1728
1729 /* ----- LMP capabilities ----- */
1730 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1731 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1732 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1733 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1734 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1735 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1736 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1737 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1738 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1739 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1740 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1741 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1742 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1743 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1744 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1745 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1746 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1747 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1748 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1749 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1750 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1751 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1752 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1753 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1754
1755 /* ----- Extended LMP capabilities ----- */
1756 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1757 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1758 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1759 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1760 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1761 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1762
1763 /* ----- Host capabilities ----- */
1764 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1765 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1766 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1767 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1768
1769 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1770                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1771 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1772                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1773 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1774                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1775 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1776                                 !adv->rpa_expired)
1777
1778 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1779                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1780
1781 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1782                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1783
1784 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1785                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1786
1787 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1788
1789 /* Use LL Privacy based address resolution if supported */
1790 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1791                              hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1792
1793 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1794                                    (hdev->commands[39] & 0x04))
1795
1796 /* Use enhanced synchronous connection if command is supported and its quirk
1797  * has not been set.
1798  */
1799 #define enhanced_sync_conn_capable(dev) \
1800         (((dev)->commands[29] & 0x08) && \
1801          !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1802
1803 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1804 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1805                            ((dev)->commands[37] & 0x40) && \
1806                            !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1807
1808 /* Use ext create connection if command is supported */
1809 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1810
1811 /* Extended advertising support */
1812 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1813
1814 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1815  *
1816  * C24: Mandatory if the LE Controller supports Connection State and either
1817  * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1818  */
1819 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1820                                          ext_adv_capable(dev))
1821
1822 /* Periodic advertising support */
1823 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1824
1825 /* CIS Master/Slave and BIS support */
1826 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1827 #define cis_capable(dev) \
1828         (cis_central_capable(dev) || cis_peripheral_capable(dev))
1829 #define cis_central_capable(dev) \
1830         ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1831 #define cis_peripheral_capable(dev) \
1832         ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1833 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1834
1835 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1836         (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1837
1838 /* ----- HCI protocols ----- */
1839 #define HCI_PROTO_DEFER             0x01
1840
1841 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1842                                         __u8 type, __u8 *flags)
1843 {
1844         switch (type) {
1845         case ACL_LINK:
1846                 return l2cap_connect_ind(hdev, bdaddr);
1847
1848         case SCO_LINK:
1849         case ESCO_LINK:
1850                 return sco_connect_ind(hdev, bdaddr, flags);
1851
1852         case ISO_LINK:
1853                 return iso_connect_ind(hdev, bdaddr, flags);
1854
1855         default:
1856                 BT_ERR("unknown link type %d", type);
1857                 return -EINVAL;
1858         }
1859 }
1860
1861 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1862 {
1863         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1864                 return HCI_ERROR_REMOTE_USER_TERM;
1865
1866         return l2cap_disconn_ind(conn);
1867 }
1868
1869 /* ----- HCI callbacks ----- */
1870 struct hci_cb {
1871         struct list_head list;
1872
1873         char *name;
1874
1875         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1876         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1877         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1878                                                                 __u8 encrypt);
1879         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1880         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1881 };
1882
1883 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1884 {
1885         struct hci_cb *cb;
1886
1887         mutex_lock(&hci_cb_list_lock);
1888         list_for_each_entry(cb, &hci_cb_list, list) {
1889                 if (cb->connect_cfm)
1890                         cb->connect_cfm(conn, status);
1891         }
1892         mutex_unlock(&hci_cb_list_lock);
1893
1894         if (conn->connect_cfm_cb)
1895                 conn->connect_cfm_cb(conn, status);
1896 }
1897
1898 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1899 {
1900         struct hci_cb *cb;
1901
1902         mutex_lock(&hci_cb_list_lock);
1903         list_for_each_entry(cb, &hci_cb_list, list) {
1904                 if (cb->disconn_cfm)
1905                         cb->disconn_cfm(conn, reason);
1906         }
1907         mutex_unlock(&hci_cb_list_lock);
1908
1909         if (conn->disconn_cfm_cb)
1910                 conn->disconn_cfm_cb(conn, reason);
1911 }
1912
1913 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1914 {
1915         struct hci_cb *cb;
1916         __u8 encrypt;
1917
1918         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1919                 return;
1920
1921         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1922
1923         mutex_lock(&hci_cb_list_lock);
1924         list_for_each_entry(cb, &hci_cb_list, list) {
1925                 if (cb->security_cfm)
1926                         cb->security_cfm(conn, status, encrypt);
1927         }
1928         mutex_unlock(&hci_cb_list_lock);
1929
1930         if (conn->security_cfm_cb)
1931                 conn->security_cfm_cb(conn, status);
1932 }
1933
1934 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1935 {
1936         struct hci_cb *cb;
1937         __u8 encrypt;
1938
1939         if (conn->state == BT_CONFIG) {
1940                 if (!status)
1941                         conn->state = BT_CONNECTED;
1942
1943                 hci_connect_cfm(conn, status);
1944                 hci_conn_drop(conn);
1945                 return;
1946         }
1947
1948         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1949                 encrypt = 0x00;
1950         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1951                 encrypt = 0x02;
1952         else
1953                 encrypt = 0x01;
1954
1955         if (!status) {
1956                 if (conn->sec_level == BT_SECURITY_SDP)
1957                         conn->sec_level = BT_SECURITY_LOW;
1958
1959                 if (conn->pending_sec_level > conn->sec_level)
1960                         conn->sec_level = conn->pending_sec_level;
1961         }
1962
1963         mutex_lock(&hci_cb_list_lock);
1964         list_for_each_entry(cb, &hci_cb_list, list) {
1965                 if (cb->security_cfm)
1966                         cb->security_cfm(conn, status, encrypt);
1967         }
1968         mutex_unlock(&hci_cb_list_lock);
1969
1970         if (conn->security_cfm_cb)
1971                 conn->security_cfm_cb(conn, status);
1972 }
1973
1974 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1975 {
1976         struct hci_cb *cb;
1977
1978         mutex_lock(&hci_cb_list_lock);
1979         list_for_each_entry(cb, &hci_cb_list, list) {
1980                 if (cb->key_change_cfm)
1981                         cb->key_change_cfm(conn, status);
1982         }
1983         mutex_unlock(&hci_cb_list_lock);
1984 }
1985
1986 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1987                                                                 __u8 role)
1988 {
1989         struct hci_cb *cb;
1990
1991         mutex_lock(&hci_cb_list_lock);
1992         list_for_each_entry(cb, &hci_cb_list, list) {
1993                 if (cb->role_switch_cfm)
1994                         cb->role_switch_cfm(conn, status, role);
1995         }
1996         mutex_unlock(&hci_cb_list_lock);
1997 }
1998
1999 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2000 {
2001         if (addr_type != ADDR_LE_DEV_RANDOM)
2002                 return false;
2003
2004         if ((bdaddr->b[5] & 0xc0) == 0x40)
2005                return true;
2006
2007         return false;
2008 }
2009
2010 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2011 {
2012         if (addr_type == ADDR_LE_DEV_PUBLIC)
2013                 return true;
2014
2015         /* Check for Random Static address type */
2016         if ((addr->b[5] & 0xc0) == 0xc0)
2017                 return true;
2018
2019         return false;
2020 }
2021
2022 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2023                                           bdaddr_t *bdaddr, u8 addr_type)
2024 {
2025         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2026                 return NULL;
2027
2028         return hci_find_irk_by_rpa(hdev, bdaddr);
2029 }
2030
2031 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2032                                         u16 to_multiplier)
2033 {
2034         u16 max_latency;
2035
2036         if (min > max || min < 6 || max > 3200)
2037                 return -EINVAL;
2038
2039         if (to_multiplier < 10 || to_multiplier > 3200)
2040                 return -EINVAL;
2041
2042         if (max >= to_multiplier * 8)
2043                 return -EINVAL;
2044
2045         max_latency = (to_multiplier * 4 / max) - 1;
2046         if (latency > 499 || latency > max_latency)
2047                 return -EINVAL;
2048
2049         return 0;
2050 }
2051
2052 int hci_register_cb(struct hci_cb *hcb);
2053 int hci_unregister_cb(struct hci_cb *hcb);
2054
2055 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2056                    const void *param);
2057
2058 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2059                  const void *param);
2060 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2061 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2062 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2063
2064 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2065 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2066
2067 u32 hci_conn_get_phy(struct hci_conn *conn);
2068
2069 /* ----- HCI Sockets ----- */
2070 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2071 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2072                          int flag, struct sock *skip_sk);
2073 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2074 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2075                                  void *data, u16 data_len, ktime_t tstamp,
2076                                  int flag, struct sock *skip_sk);
2077
2078 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2079
2080 #define HCI_MGMT_VAR_LEN        BIT(0)
2081 #define HCI_MGMT_NO_HDEV        BIT(1)
2082 #define HCI_MGMT_UNTRUSTED      BIT(2)
2083 #define HCI_MGMT_UNCONFIGURED   BIT(3)
2084 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
2085
2086 struct hci_mgmt_handler {
2087         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2088                      u16 data_len);
2089         size_t data_len;
2090         unsigned long flags;
2091 };
2092
2093 struct hci_mgmt_chan {
2094         struct list_head list;
2095         unsigned short channel;
2096         size_t handler_count;
2097         const struct hci_mgmt_handler *handlers;
2098 #ifdef TIZEN_BT
2099         size_t tizen_handler_count;
2100         const struct hci_mgmt_handler *tizen_handlers;
2101 #endif
2102         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2103 };
2104
2105 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2106 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2107
2108 /* Management interface */
2109 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
2110 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
2111                                          BIT(BDADDR_LE_RANDOM))
2112 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
2113                                          BIT(BDADDR_LE_PUBLIC) | \
2114                                          BIT(BDADDR_LE_RANDOM))
2115
2116 /* These LE scan and inquiry parameters were chosen according to LE General
2117  * Discovery Procedure specification.
2118  */
2119 #define DISCOV_LE_SCAN_WIN              0x12
2120 #define DISCOV_LE_SCAN_INT              0x12
2121 #define DISCOV_LE_TIMEOUT               10240   /* msec */
2122 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
2123 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
2124 #define DISCOV_BREDR_INQUIRY_LEN        0x08
2125 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
2126 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
2127 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
2128 #define DISCOV_LE_PER_ADV_INT_MIN       0x00A0  /* 200 msec */
2129 #define DISCOV_LE_PER_ADV_INT_MAX       0x00A0  /* 200 msec */
2130 #define DISCOV_LE_ADV_MESH_MIN          0x00A0  /* 100 msec */
2131 #define DISCOV_LE_ADV_MESH_MAX          0x00A0  /* 100 msec */
2132 #define INTERVAL_TO_MS(x)               (((x) * 10) / 0x10)
2133
2134 #define NAME_RESOLVE_DURATION           msecs_to_jiffies(10240) /* 10.24 sec */
2135
2136 void mgmt_fill_version_info(void *ver);
2137 int mgmt_new_settings(struct hci_dev *hdev);
2138 void mgmt_index_added(struct hci_dev *hdev);
2139 void mgmt_index_removed(struct hci_dev *hdev);
2140 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2141 void mgmt_power_on(struct hci_dev *hdev, int err);
2142 void __mgmt_power_off(struct hci_dev *hdev);
2143 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2144                        bool persistent);
2145 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2146                            u8 *name, u8 name_len);
2147 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2148                               u8 link_type, u8 addr_type, u8 reason,
2149                               bool mgmt_connected);
2150 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2151                             u8 link_type, u8 addr_type, u8 status);
2152 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2153                          u8 addr_type, u8 status);
2154 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2155 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2156                                   u8 status);
2157 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2158                                       u8 status);
2159 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2160                               u8 link_type, u8 addr_type, u32 value,
2161                               u8 confirm_hint);
2162 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2163                                      u8 link_type, u8 addr_type, u8 status);
2164 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2165                                          u8 link_type, u8 addr_type, u8 status);
2166 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2167                               u8 link_type, u8 addr_type);
2168 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2169                                      u8 link_type, u8 addr_type, u8 status);
2170 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2171                                          u8 link_type, u8 addr_type, u8 status);
2172 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2173                              u8 link_type, u8 addr_type, u32 passkey,
2174                              u8 entered);
2175 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2176 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2177 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2178                                     u8 status);
2179 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2180 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2181 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2182 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2183                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2184                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2185                        u64 instant);
2186 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2187                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2188 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2189 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2190 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2191                    u8 addr_type);
2192 bool mgmt_powering_down(struct hci_dev *hdev);
2193 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2194 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2195 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2196                    bool persistent);
2197 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2198                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
2199                          u16 max_interval, u16 latency, u16 timeout);
2200 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2201 bool mgmt_get_connectable(struct hci_dev *hdev);
2202 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2203 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2204                             u8 instance);
2205 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2206                               u8 instance);
2207 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2208 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2209 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2210                                   bdaddr_t *bdaddr, u8 addr_type);
2211
2212 #ifdef TIZEN_BT
2213 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
2214                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2215 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
2216                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2217 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
2218                 void *data, u16 len);
2219 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
2220                 s8 alert_type, s8 rssi_dbm);
2221 void mgmt_raw_rssi_response(struct hci_dev *hdev,
2222                 struct hci_cc_rp_get_raw_rssi *rp, int success);
2223 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
2224 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
2225                 u8 name_len);
2226 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
2227 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
2228                 u8 dst_type, u16 conn_interval, u16 conn_latency,
2229                 u16 supervision_timeout);
2230 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2231                 u8 link_type, u8 addr_type, u8 status);
2232 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
2233 void mgmt_tx_timeout_error(struct hci_dev *hdev);
2234 /*  Pass adv type in the le device found */
2235 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2236                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
2237                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
2238 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
2239                 u8 state_change_reason, u16 connection_handle);
2240 void mgmt_6lowpan_conn_changed(struct hci_dev *hdev, char if_name[16],
2241                 bdaddr_t *bdaddr, u8 addr_type, bool connected);
2242 void mgmt_le_read_maximum_data_length_complete(struct hci_dev *hdev,
2243                 u8 status);
2244 void mgmt_le_write_host_suggested_data_length_complete(struct hci_dev *hdev,
2245                 u8 status);
2246 #endif
2247
2248 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2249 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2250                       u16 to_multiplier);
2251 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2252                       __u8 ltk[16], __u8 key_size);
2253
2254 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2255                                u8 *bdaddr_type);
2256
2257 #define SCO_AIRMODE_MASK       0x0003
2258 #define SCO_AIRMODE_CVSD       0x0000
2259 #define SCO_AIRMODE_TRANSP     0x0003
2260
2261 #define LOCAL_CODEC_ACL_MASK    BIT(0)
2262 #define LOCAL_CODEC_SCO_MASK    BIT(1)
2263
2264 #define TRANSPORT_TYPE_MAX      0x04
2265
2266 #endif /* __HCI_CORE_H */