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 #ifdef TIZEN_BT
 763         __u16           tx_len;
 764         __u16           tx_time;
 765         __u16           rx_len;
 766         __u16           rx_time;
 767 #endif
 768
 769         struct sk_buff_head data_q;
 770         struct list_head chan_list;
 771
 772         struct delayed_work disc_work;
 773         struct delayed_work auto_accept_work;
 774         struct delayed_work idle_work;
 775         struct delayed_work le_conn_timeout;
 776         struct work_struct  le_scan_cleanup;
 777
 778         struct device   dev;
 779         struct dentry   *debugfs;
 780
 781         struct hci_dev  *hdev;
 782         void            *l2cap_data;
 783         void            *sco_data;
 784         void            *iso_data;
 785         struct amp_mgr  *amp_mgr;
 786
 787 #ifdef TIZEN_BT
 788         bool            rssi_monitored;
 789         __u8            sco_role;
 790         __u16           voice_setting;
 791 #endif
 792         struct hci_conn *link;
 793         struct bt_codec codec;
 794
 795         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 796         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 797         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 798
 799         void (*cleanup)(struct hci_conn *conn);
 800 };
 801
 802 struct hci_chan {
 803         struct list_head list;
 804         __u16 handle;
 805         struct hci_conn *conn;
 806         struct sk_buff_head data_q;
 807         unsigned int    sent;
 808         __u8            state;
 809         bool            amp;
 810 };
 811
 812 struct hci_conn_params {
 813         struct list_head list;
 814         struct list_head action;
 815
 816         bdaddr_t addr;
 817         u8 addr_type;
 818
 819         u16 conn_min_interval;
 820         u16 conn_max_interval;
 821         u16 conn_latency;
 822         u16 supervision_timeout;
 823
 824 #ifdef TIZEN_BT
 825         u16 max_tx_octets;
 826         u16 max_tx_time;
 827 #endif
 828         enum {
 829                 HCI_AUTO_CONN_DISABLED,
 830                 HCI_AUTO_CONN_REPORT,
 831                 HCI_AUTO_CONN_DIRECT,
 832                 HCI_AUTO_CONN_ALWAYS,
 833                 HCI_AUTO_CONN_LINK_LOSS,
 834                 HCI_AUTO_CONN_EXPLICIT,
 835         } auto_connect;
 836
 837         struct hci_conn *conn;
 838         bool explicit_connect;
 839         hci_conn_flags_t flags;
 840         u8  privacy_mode;
 841 };
 842
 843 extern struct list_head hci_dev_list;
 844 extern struct list_head hci_cb_list;
 845 extern rwlock_t hci_dev_list_lock;
 846 extern struct mutex hci_cb_list_lock;
 847
 848 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 849 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 850 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 851 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 852 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 853 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 854 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 855
 856 #define hci_dev_clear_volatile_flags(hdev)                      \
 857         do {                                                    \
 858                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 859                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 860                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 861                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 862                 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);   \
 863         } while (0)
 864
 865 #define hci_dev_le_state_simultaneous(hdev) \
 866         (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
 867          (hdev->le_states[4] & 0x08) && /* Central */ \
 868          (hdev->le_states[4] & 0x40) && /* Peripheral */ \
 869          (hdev->le_states[3] & 0x10))   /* Simultaneous */
 870
 871 /* ----- HCI interface to upper protocols ----- */
 872 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 873 int l2cap_disconn_ind(struct hci_conn *hcon);
 874 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 875
 876 #if IS_ENABLED(CONFIG_BT_BREDR)
 877 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 878 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 879 #else
 880 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 881                                   __u8 *flags)
 882 {
 883         return 0;
 884 }
 885
 886 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 887 {
 888 }
 889 #endif
 890
 891 #if IS_ENABLED(CONFIG_BT_LE)
 892 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 893 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 894 #else
 895 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 896                                   __u8 *flags)
 897 {
 898         return 0;
 899 }
 900 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
 901                             u16 flags)
 902 {
 903 }
 904 #endif
 905
 906 /* ----- Inquiry cache ----- */
 907 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 908 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 909
 910 static inline void discovery_init(struct hci_dev *hdev)
 911 {
 912         hdev->discovery.state = DISCOVERY_STOPPED;
 913         INIT_LIST_HEAD(&hdev->discovery.all);
 914         INIT_LIST_HEAD(&hdev->discovery.unknown);
 915         INIT_LIST_HEAD(&hdev->discovery.resolve);
 916         hdev->discovery.report_invalid_rssi = true;
 917         hdev->discovery.rssi = HCI_RSSI_INVALID;
 918 }
 919
 920 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 921 {
 922         hdev->discovery.result_filtering = false;
 923         hdev->discovery.report_invalid_rssi = true;
 924         hdev->discovery.rssi = HCI_RSSI_INVALID;
 925         hdev->discovery.uuid_count = 0;
 926         kfree(hdev->discovery.uuids);
 927         hdev->discovery.uuids = NULL;
 928         hdev->discovery.scan_start = 0;
 929         hdev->discovery.scan_duration = 0;
 930 }
 931
 932 bool hci_discovery_active(struct hci_dev *hdev);
 933
 934 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 935
 936 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 937 {
 938         return list_empty(&hdev->discovery.all);
 939 }
 940
 941 static inline long inquiry_cache_age(struct hci_dev *hdev)
 942 {
 943         struct discovery_state *c = &hdev->discovery;
 944         return jiffies - c->timestamp;
 945 }
 946
 947 static inline long inquiry_entry_age(struct inquiry_entry *e)
 948 {
 949         return jiffies - e->timestamp;
 950 }
 951
 952 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 953                                                bdaddr_t *bdaddr);
 954 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 955                                                        bdaddr_t *bdaddr);
 956 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 957                                                        bdaddr_t *bdaddr,
 958                                                        int state);
 959 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 960                                       struct inquiry_entry *ie);
 961 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 962                              bool name_known);
 963 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 964
 965 /* ----- HCI Connections ----- */
 966 #ifdef TIZEN_BT
 967 #define LINK_SUPERVISION_TIMEOUT        0x1F40   /* n * 0.625 = 5 seconds */
 968 #endif /* TIZEN_BT */
 969
 970 enum {
 971         HCI_CONN_AUTH_PEND,
 972         HCI_CONN_REAUTH_PEND,
 973         HCI_CONN_ENCRYPT_PEND,
 974         HCI_CONN_RSWITCH_PEND,
 975         HCI_CONN_MODE_CHANGE_PEND,
 976         HCI_CONN_SCO_SETUP_PEND,
 977         HCI_CONN_MGMT_CONNECTED,
 978         HCI_CONN_SSP_ENABLED,
 979         HCI_CONN_SC_ENABLED,
 980         HCI_CONN_AES_CCM,
 981         HCI_CONN_POWER_SAVE,
 982         HCI_CONN_FLUSH_KEY,
 983         HCI_CONN_ENCRYPT,
 984         HCI_CONN_AUTH,
 985         HCI_CONN_SECURE,
 986         HCI_CONN_FIPS,
 987         HCI_CONN_STK_ENCRYPT,
 988         HCI_CONN_AUTH_INITIATOR,
 989         HCI_CONN_DROP,
 990         HCI_CONN_CANCEL,
 991         HCI_CONN_PARAM_REMOVAL_PEND,
 992         HCI_CONN_NEW_LINK_KEY,
 993         HCI_CONN_SCANNING,
 994         HCI_CONN_AUTH_FAILURE,
 995         HCI_CONN_PER_ADV,
 996 };
 997
 998 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 999 {
1000         struct hci_dev *hdev = conn->hdev;
1001         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
1002                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
1003 }
1004
1005 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
1006 {
1007         struct hci_dev *hdev = conn->hdev;
1008         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
1009                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
1010 }
1011
1012 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
1013 {
1014         struct hci_conn_hash *h = &hdev->conn_hash;
1015         list_add_rcu(&c->list, &h->list);
1016         switch (c->type) {
1017         case ACL_LINK:
1018                 h->acl_num++;
1019                 break;
1020         case AMP_LINK:
1021                 h->amp_num++;
1022                 break;
1023         case LE_LINK:
1024                 h->le_num++;
1025                 if (c->role == HCI_ROLE_SLAVE)
1026                         h->le_num_peripheral++;
1027                 break;
1028         case SCO_LINK:
1029         case ESCO_LINK:
1030                 h->sco_num++;
1031                 break;
1032         case ISO_LINK:
1033                 h->iso_num++;
1034                 break;
1035         }
1036 }
1037
1038 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1039 {
1040         struct hci_conn_hash *h = &hdev->conn_hash;
1041
1042         list_del_rcu(&c->list);
1043         synchronize_rcu();
1044
1045         switch (c->type) {
1046         case ACL_LINK:
1047                 h->acl_num--;
1048                 break;
1049         case AMP_LINK:
1050                 h->amp_num--;
1051                 break;
1052         case LE_LINK:
1053                 h->le_num--;
1054                 if (c->role == HCI_ROLE_SLAVE)
1055                         h->le_num_peripheral--;
1056                 break;
1057         case SCO_LINK:
1058         case ESCO_LINK:
1059                 h->sco_num--;
1060                 break;
1061         case ISO_LINK:
1062                 h->iso_num--;
1063                 break;
1064         }
1065 }
1066
1067 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1068 {
1069         struct hci_conn_hash *h = &hdev->conn_hash;
1070         switch (type) {
1071         case ACL_LINK:
1072                 return h->acl_num;
1073         case AMP_LINK:
1074                 return h->amp_num;
1075         case LE_LINK:
1076                 return h->le_num;
1077         case SCO_LINK:
1078         case ESCO_LINK:
1079                 return h->sco_num;
1080         case ISO_LINK:
1081                 return h->iso_num;
1082         default:
1083                 return 0;
1084         }
1085 }
1086
1087 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1088 {
1089         struct hci_conn_hash *c = &hdev->conn_hash;
1090
1091         return c->acl_num + c->amp_num + c->sco_num + c->le_num + c->iso_num;
1092 }
1093
1094 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1095 {
1096         struct hci_conn_hash *h = &hdev->conn_hash;
1097         struct hci_conn *c;
1098         __u8 type = INVALID_LINK;
1099
1100         rcu_read_lock();
1101
1102         list_for_each_entry_rcu(c, &h->list, list) {
1103                 if (c->handle == handle) {
1104                         type = c->type;
1105                         break;
1106                 }
1107         }
1108
1109         rcu_read_unlock();
1110
1111         return type;
1112 }
1113
1114 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1115                                                         bdaddr_t *ba,
1116                                                         __u8 big, __u8 bis)
1117 {
1118         struct hci_conn_hash *h = &hdev->conn_hash;
1119         struct hci_conn  *c;
1120
1121         rcu_read_lock();
1122
1123         list_for_each_entry_rcu(c, &h->list, list) {
1124                 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1125                         continue;
1126
1127                 if (c->iso_qos.big == big && c->iso_qos.bis == bis) {
1128                         rcu_read_unlock();
1129                         return c;
1130                 }
1131         }
1132         rcu_read_unlock();
1133
1134         return NULL;
1135 }
1136
1137 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1138                                                                 __u16 handle)
1139 {
1140         struct hci_conn_hash *h = &hdev->conn_hash;
1141         struct hci_conn  *c;
1142
1143         rcu_read_lock();
1144
1145         list_for_each_entry_rcu(c, &h->list, list) {
1146                 if (c->handle == handle) {
1147                         rcu_read_unlock();
1148                         return c;
1149                 }
1150         }
1151         rcu_read_unlock();
1152
1153         return NULL;
1154 }
1155
1156 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1157                                                         __u8 type, bdaddr_t *ba)
1158 {
1159         struct hci_conn_hash *h = &hdev->conn_hash;
1160         struct hci_conn  *c;
1161
1162         rcu_read_lock();
1163
1164         list_for_each_entry_rcu(c, &h->list, list) {
1165                 if (c->type == type && !bacmp(&c->dst, ba)) {
1166                         rcu_read_unlock();
1167                         return c;
1168                 }
1169         }
1170
1171         rcu_read_unlock();
1172
1173         return NULL;
1174 }
1175
1176 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1177                                                        bdaddr_t *ba,
1178                                                        __u8 ba_type)
1179 {
1180         struct hci_conn_hash *h = &hdev->conn_hash;
1181         struct hci_conn  *c;
1182
1183         rcu_read_lock();
1184
1185         list_for_each_entry_rcu(c, &h->list, list) {
1186                 if (c->type != LE_LINK)
1187                        continue;
1188
1189                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1190                         rcu_read_unlock();
1191                         return c;
1192                 }
1193         }
1194
1195         rcu_read_unlock();
1196
1197         return NULL;
1198 }
1199
1200 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1201                                                         bdaddr_t *ba,
1202                                                         __u8 ba_type)
1203 {
1204         struct hci_conn_hash *h = &hdev->conn_hash;
1205         struct hci_conn  *c;
1206
1207         rcu_read_lock();
1208
1209         list_for_each_entry_rcu(c, &h->list, list) {
1210                 if (c->type != ISO_LINK)
1211                         continue;
1212
1213                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1214                         rcu_read_unlock();
1215                         return c;
1216                 }
1217         }
1218
1219         rcu_read_unlock();
1220
1221         return NULL;
1222 }
1223
1224 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1225                                                         __u8 handle)
1226 {
1227         struct hci_conn_hash *h = &hdev->conn_hash;
1228         struct hci_conn  *c;
1229
1230         rcu_read_lock();
1231
1232         list_for_each_entry_rcu(c, &h->list, list) {
1233                 if (c->type != ISO_LINK)
1234                         continue;
1235
1236                 if (handle == c->iso_qos.cig) {
1237                         rcu_read_unlock();
1238                         return c;
1239                 }
1240         }
1241
1242         rcu_read_unlock();
1243
1244         return NULL;
1245 }
1246
1247 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1248                                                         __u8 handle)
1249 {
1250         struct hci_conn_hash *h = &hdev->conn_hash;
1251         struct hci_conn  *c;
1252
1253         rcu_read_lock();
1254
1255         list_for_each_entry_rcu(c, &h->list, list) {
1256                 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1257                         continue;
1258
1259                 if (handle == c->iso_qos.big) {
1260                         rcu_read_unlock();
1261                         return c;
1262                 }
1263         }
1264
1265         rcu_read_unlock();
1266
1267         return NULL;
1268 }
1269
1270 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1271                                                         __u8 type, __u16 state)
1272 {
1273         struct hci_conn_hash *h = &hdev->conn_hash;
1274         struct hci_conn  *c;
1275
1276         rcu_read_lock();
1277
1278         list_for_each_entry_rcu(c, &h->list, list) {
1279                 if (c->type == type && c->state == state) {
1280                         rcu_read_unlock();
1281                         return c;
1282                 }
1283         }
1284
1285         rcu_read_unlock();
1286
1287         return NULL;
1288 }
1289
1290 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
1291 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1292                                             hci_conn_func_t func, __u8 type,
1293                                             __u16 state, void *data)
1294 {
1295         struct hci_conn_hash *h = &hdev->conn_hash;
1296         struct hci_conn  *c;
1297
1298         if (!func)
1299                 return;
1300
1301         rcu_read_lock();
1302
1303         list_for_each_entry_rcu(c, &h->list, list) {
1304                 if (c->type == type && c->state == state)
1305                         func(c, data);
1306         }
1307
1308         rcu_read_unlock();
1309 }
1310
1311 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1312 {
1313         struct hci_conn_hash *h = &hdev->conn_hash;
1314         struct hci_conn  *c;
1315
1316         rcu_read_lock();
1317
1318         list_for_each_entry_rcu(c, &h->list, list) {
1319                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1320                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1321                         rcu_read_unlock();
1322                         return c;
1323                 }
1324         }
1325
1326         rcu_read_unlock();
1327
1328         return NULL;
1329 }
1330
1331 #ifdef TIZEN_BT
1332 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1333                                         __u8 type, bdaddr_t *ba, bool value)
1334 {
1335         struct hci_conn_hash *h = &hdev->conn_hash;
1336         struct hci_conn  *c;
1337         __u8 conn_type;
1338
1339         if (type == 0x01)
1340                 conn_type = LE_LINK;
1341         else
1342                 conn_type = ACL_LINK;
1343
1344         rcu_read_lock();
1345
1346         list_for_each_entry_rcu(c, &h->list, list) {
1347                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1348                         c->rssi_monitored = value;
1349                         rcu_read_unlock();
1350                         return true;
1351                 }
1352         }
1353
1354         rcu_read_unlock();
1355         return false;
1356 }
1357
1358 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1359                                         __u8 type)
1360 {
1361         struct hci_conn_hash *h = &hdev->conn_hash;
1362         struct hci_conn  *c;
1363         __u8 conn_type;
1364
1365         if (type == 0x01)
1366                 conn_type = LE_LINK;
1367         else
1368                 conn_type = ACL_LINK;
1369
1370         rcu_read_lock();
1371         list_for_each_entry_rcu(c, &h->list, list) {
1372                 if (c->type == conn_type)
1373                         c->rssi_monitored = false;
1374         }
1375         rcu_read_unlock();
1376 }
1377
1378 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1379 {
1380         struct hci_conn_hash *h = &hdev->conn_hash;
1381         struct hci_conn  *c;
1382         int count = 0;
1383
1384         rcu_read_lock();
1385         list_for_each_entry_rcu(c, &h->list, list) {
1386                 if (c->rssi_monitored == true)
1387                         ++count;
1388         }
1389         rcu_read_unlock();
1390
1391         return count;
1392 }
1393
1394 int hci_conn_change_supervision_timeout(struct hci_conn *conn, __u16 timeout);
1395 bool hci_le_discovery_active(struct hci_dev *hdev);
1396 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1397
1398 static inline struct hci_conn *hci_conn_hash_lookup_sco(struct hci_dev *hdev)
1399 {
1400         struct hci_conn_hash *h = &hdev->conn_hash;
1401         struct hci_conn  *c;
1402
1403         rcu_read_lock();
1404         list_for_each_entry_rcu(c, &h->list, list) {
1405                 if (c->type == SCO_LINK || c->type == ESCO_LINK) {
1406                         rcu_read_unlock();
1407                         return c;
1408                 }
1409         }
1410         rcu_read_unlock();
1411
1412         return NULL;
1413 }
1414 #endif
1415
1416 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1417 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1418 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1419 bool hci_iso_setup_path(struct hci_conn *conn);
1420 int hci_le_create_cis(struct hci_conn *conn);
1421
1422 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1423                               u8 role);
1424 int hci_conn_del(struct hci_conn *conn);
1425 void hci_conn_hash_flush(struct hci_dev *hdev);
1426 void hci_conn_check_pending(struct hci_dev *hdev);
1427
1428 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1429 void hci_chan_del(struct hci_chan *chan);
1430 void hci_chan_list_flush(struct hci_conn *conn);
1431 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1432
1433 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1434                                      u8 dst_type, u8 sec_level,
1435                                      u16 conn_timeout,
1436                                      enum conn_reasons conn_reason);
1437 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1438                                 u8 dst_type, bool dst_resolved, u8 sec_level,
1439                                 u16 conn_timeout, u8 role);
1440 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1441                                  u8 sec_level, u8 auth_type,
1442                                  enum conn_reasons conn_reason);
1443 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1444                                  __u16 setting, struct bt_codec *codec);
1445 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1446                               __u8 dst_type, struct bt_iso_qos *qos);
1447 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1448                                  __u8 dst_type, struct bt_iso_qos *qos);
1449 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1450                                  __u8 dst_type, struct bt_iso_qos *qos,
1451                                  __u8 data_len, __u8 *data);
1452 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1453                        __u8 sid);
1454 int hci_le_big_create_sync(struct hci_dev *hdev, struct bt_iso_qos *qos,
1455                            __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1456 int hci_conn_check_link_mode(struct hci_conn *conn);
1457 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1458 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1459                       bool initiator);
1460 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1461
1462 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1463
1464 void hci_conn_failed(struct hci_conn *conn, u8 status);
1465
1466 /*
1467  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1468  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1469  * working or anything else. They just guarantee that the object is available
1470  * and can be dereferenced. So you can use its locks, local variables and any
1471  * other constant data.
1472  * Before accessing runtime data, you _must_ lock the object and then check that
1473  * it is still running. As soon as you release the locks, the connection might
1474  * get dropped, though.
1475  *
1476  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1477  * how long the underlying connection is held. So every channel that runs on the
1478  * hci_conn object calls this to prevent the connection from disappearing. As
1479  * long as you hold a device, you must also guarantee that you have a valid
1480  * reference to the device via hci_conn_get() (or the initial reference from
1481  * hci_conn_add()).
1482  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1483  * break because nobody cares for that. But this means, we cannot use
1484  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1485  */
1486
1487 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1488 {
1489         get_device(&conn->dev);
1490         return conn;
1491 }
1492
1493 static inline void hci_conn_put(struct hci_conn *conn)
1494 {
1495         put_device(&conn->dev);
1496 }
1497
1498 static inline void hci_conn_hold(struct hci_conn *conn)
1499 {
1500         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1501
1502         atomic_inc(&conn->refcnt);
1503         cancel_delayed_work(&conn->disc_work);
1504 }
1505
1506 static inline void hci_conn_drop(struct hci_conn *conn)
1507 {
1508         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1509
1510         if (atomic_dec_and_test(&conn->refcnt)) {
1511                 unsigned long timeo;
1512
1513                 switch (conn->type) {
1514                 case ACL_LINK:
1515                 case LE_LINK:
1516                         cancel_delayed_work(&conn->idle_work);
1517                         if (conn->state == BT_CONNECTED) {
1518                                 timeo = conn->disc_timeout;
1519                                 if (!conn->out)
1520                                         timeo *= 2;
1521                         } else {
1522                                 timeo = 0;
1523                         }
1524                         break;
1525
1526                 case AMP_LINK:
1527                         timeo = conn->disc_timeout;
1528                         break;
1529
1530                 default:
1531                         timeo = 0;
1532                         break;
1533                 }
1534
1535                 cancel_delayed_work(&conn->disc_work);
1536                 queue_delayed_work(conn->hdev->workqueue,
1537                                    &conn->disc_work, timeo);
1538         }
1539 }
1540
1541 /* ----- HCI Devices ----- */
1542 static inline void hci_dev_put(struct hci_dev *d)
1543 {
1544         BT_DBG("%s orig refcnt %d", d->name,
1545                kref_read(&d->dev.kobj.kref));
1546
1547         put_device(&d->dev);
1548 }
1549
1550 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1551 {
1552         BT_DBG("%s orig refcnt %d", d->name,
1553                kref_read(&d->dev.kobj.kref));
1554
1555         get_device(&d->dev);
1556         return d;
1557 }
1558
1559 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1560 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1561
1562 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1563 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1564
1565 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1566 {
1567         return dev_get_drvdata(&hdev->dev);
1568 }
1569
1570 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1571 {
1572         dev_set_drvdata(&hdev->dev, data);
1573 }
1574
1575 static inline void *hci_get_priv(struct hci_dev *hdev)
1576 {
1577         return (char *)hdev + sizeof(*hdev);
1578 }
1579
1580 struct hci_dev *hci_dev_get(int index);
1581 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1582
1583 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1584
1585 static inline struct hci_dev *hci_alloc_dev(void)
1586 {
1587         return hci_alloc_dev_priv(0);
1588 }
1589
1590 void hci_free_dev(struct hci_dev *hdev);
1591 int hci_register_dev(struct hci_dev *hdev);
1592 void hci_unregister_dev(struct hci_dev *hdev);
1593 void hci_release_dev(struct hci_dev *hdev);
1594 int hci_register_suspend_notifier(struct hci_dev *hdev);
1595 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1596 int hci_suspend_dev(struct hci_dev *hdev);
1597 int hci_resume_dev(struct hci_dev *hdev);
1598 int hci_reset_dev(struct hci_dev *hdev);
1599 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1600 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1601 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1602 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1603
1604 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1605 {
1606 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1607         hdev->msft_opcode = opcode;
1608 #endif
1609 }
1610
1611 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1612 {
1613 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1614         hdev->aosp_capable = true;
1615 #endif
1616 }
1617
1618 int hci_dev_open(__u16 dev);
1619 int hci_dev_close(__u16 dev);
1620 int hci_dev_do_close(struct hci_dev *hdev);
1621 int hci_dev_reset(__u16 dev);
1622 int hci_dev_reset_stat(__u16 dev);
1623 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1624 int hci_get_dev_list(void __user *arg);
1625 int hci_get_dev_info(void __user *arg);
1626 int hci_get_conn_list(void __user *arg);
1627 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1628 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1629 #ifdef TIZEN_BT
1630 u32 get_link_mode(struct hci_conn *conn);
1631 #endif
1632 int hci_inquiry(void __user *arg);
1633
1634 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1635                                            bdaddr_t *bdaddr, u8 type);
1636 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1637                                     struct list_head *list, bdaddr_t *bdaddr,
1638                                     u8 type);
1639 struct bdaddr_list_with_flags *
1640 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1641                                   u8 type);
1642 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1643 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1644                                  u8 type, u8 *peer_irk, u8 *local_irk);
1645 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1646                                    u8 type, u32 flags);
1647 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1648 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1649                                  u8 type);
1650 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1651                                    u8 type);
1652 void hci_bdaddr_list_clear(struct list_head *list);
1653
1654 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1655                                                bdaddr_t *addr, u8 addr_type);
1656 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1657                                             bdaddr_t *addr, u8 addr_type);
1658 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1659 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1660
1661 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1662                                                   bdaddr_t *addr,
1663                                                   u8 addr_type);
1664
1665 void hci_uuids_clear(struct hci_dev *hdev);
1666
1667 void hci_link_keys_clear(struct hci_dev *hdev);
1668 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1669 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1670                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1671                                   u8 pin_len, bool *persistent);
1672 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1673                             u8 addr_type, u8 type, u8 authenticated,
1674                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1675 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1676                              u8 addr_type, u8 role);
1677 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1678 void hci_smp_ltks_clear(struct hci_dev *hdev);
1679 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1680
1681 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1682 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1683                                      u8 addr_type);
1684 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1685                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1686 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1687 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1688 void hci_blocked_keys_clear(struct hci_dev *hdev);
1689 void hci_smp_irks_clear(struct hci_dev *hdev);
1690
1691 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1692
1693 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1694 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1695                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1696 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1697                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1698                             u8 *hash256, u8 *rand256);
1699 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1700                                u8 bdaddr_type);
1701
1702 void hci_adv_instances_clear(struct hci_dev *hdev);
1703 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1704 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1705 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1706                                       u32 flags, u16 adv_data_len, u8 *adv_data,
1707                                       u16 scan_rsp_len, u8 *scan_rsp_data,
1708                                       u16 timeout, u16 duration, s8 tx_power,
1709                                       u32 min_interval, u32 max_interval,
1710                                       u8 mesh_handle);
1711 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1712                                       u32 flags, u8 data_len, u8 *data,
1713                                       u32 min_interval, u32 max_interval);
1714 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1715                          u16 adv_data_len, u8 *adv_data,
1716                          u16 scan_rsp_len, u8 *scan_rsp_data);
1717 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1718 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1719 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1720 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1721
1722 void hci_adv_monitors_clear(struct hci_dev *hdev);
1723 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1724 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1725 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1726 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1727 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1728 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1729
1730 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1731
1732 void hci_init_sysfs(struct hci_dev *hdev);
1733 void hci_conn_init_sysfs(struct hci_conn *conn);
1734 void hci_conn_add_sysfs(struct hci_conn *conn);
1735 void hci_conn_del_sysfs(struct hci_conn *conn);
1736
1737 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1738
1739 /* ----- LMP capabilities ----- */
1740 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1741 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1742 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1743 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1744 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1745 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1746 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1747 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1748 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1749 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1750 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1751 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1752 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1753 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1754 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1755 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1756 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1757 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1758 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1759 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1760 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1761 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1762 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1763 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1764
1765 /* ----- Extended LMP capabilities ----- */
1766 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1767 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1768 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1769 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1770 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1771 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1772
1773 /* ----- Host capabilities ----- */
1774 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1775 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1776 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1777 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1778
1779 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1780                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1781 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1782                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1783 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1784                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1785 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1786                                 !adv->rpa_expired)
1787
1788 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1789                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1790
1791 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1792                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1793
1794 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1795                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1796
1797 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1798
1799 /* Use LL Privacy based address resolution if supported */
1800 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1801                              hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1802
1803 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1804                                    (hdev->commands[39] & 0x04))
1805
1806 /* Use enhanced synchronous connection if command is supported and its quirk
1807  * has not been set.
1808  */
1809 #define enhanced_sync_conn_capable(dev) \
1810         (((dev)->commands[29] & 0x08) && \
1811          !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1812
1813 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1814 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1815                            ((dev)->commands[37] & 0x40) && \
1816                            !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1817
1818 /* Use ext create connection if command is supported */
1819 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1820
1821 /* Extended advertising support */
1822 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1823
1824 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1825  *
1826  * C24: Mandatory if the LE Controller supports Connection State and either
1827  * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1828  */
1829 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1830                                          ext_adv_capable(dev))
1831
1832 /* Periodic advertising support */
1833 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1834
1835 /* CIS Master/Slave and BIS support */
1836 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1837 #define cis_capable(dev) \
1838         (cis_central_capable(dev) || cis_peripheral_capable(dev))
1839 #define cis_central_capable(dev) \
1840         ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1841 #define cis_peripheral_capable(dev) \
1842         ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1843 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1844
1845 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1846         (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1847
1848 /* ----- HCI protocols ----- */
1849 #define HCI_PROTO_DEFER             0x01
1850
1851 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1852                                         __u8 type, __u8 *flags)
1853 {
1854         switch (type) {
1855         case ACL_LINK:
1856                 return l2cap_connect_ind(hdev, bdaddr);
1857
1858         case SCO_LINK:
1859         case ESCO_LINK:
1860                 return sco_connect_ind(hdev, bdaddr, flags);
1861
1862         case ISO_LINK:
1863                 return iso_connect_ind(hdev, bdaddr, flags);
1864
1865         default:
1866                 BT_ERR("unknown link type %d", type);
1867                 return -EINVAL;
1868         }
1869 }
1870
1871 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1872 {
1873         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1874                 return HCI_ERROR_REMOTE_USER_TERM;
1875
1876         return l2cap_disconn_ind(conn);
1877 }
1878
1879 /* ----- HCI callbacks ----- */
1880 struct hci_cb {
1881         struct list_head list;
1882
1883         char *name;
1884
1885         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1886         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1887         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1888                                                                 __u8 encrypt);
1889         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1890         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1891 };
1892
1893 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1894 {
1895         struct hci_cb *cb;
1896
1897         mutex_lock(&hci_cb_list_lock);
1898         list_for_each_entry(cb, &hci_cb_list, list) {
1899                 if (cb->connect_cfm)
1900                         cb->connect_cfm(conn, status);
1901         }
1902         mutex_unlock(&hci_cb_list_lock);
1903
1904         if (conn->connect_cfm_cb)
1905                 conn->connect_cfm_cb(conn, status);
1906 }
1907
1908 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1909 {
1910         struct hci_cb *cb;
1911
1912         mutex_lock(&hci_cb_list_lock);
1913         list_for_each_entry(cb, &hci_cb_list, list) {
1914                 if (cb->disconn_cfm)
1915                         cb->disconn_cfm(conn, reason);
1916         }
1917         mutex_unlock(&hci_cb_list_lock);
1918
1919         if (conn->disconn_cfm_cb)
1920                 conn->disconn_cfm_cb(conn, reason);
1921 }
1922
1923 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1924 {
1925         struct hci_cb *cb;
1926         __u8 encrypt;
1927
1928         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1929                 return;
1930
1931         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1932
1933         mutex_lock(&hci_cb_list_lock);
1934         list_for_each_entry(cb, &hci_cb_list, list) {
1935                 if (cb->security_cfm)
1936                         cb->security_cfm(conn, status, encrypt);
1937         }
1938         mutex_unlock(&hci_cb_list_lock);
1939
1940         if (conn->security_cfm_cb)
1941                 conn->security_cfm_cb(conn, status);
1942 }
1943
1944 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1945 {
1946         struct hci_cb *cb;
1947         __u8 encrypt;
1948
1949         if (conn->state == BT_CONFIG) {
1950                 if (!status)
1951                         conn->state = BT_CONNECTED;
1952
1953                 hci_connect_cfm(conn, status);
1954                 hci_conn_drop(conn);
1955                 return;
1956         }
1957
1958         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1959                 encrypt = 0x00;
1960         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1961                 encrypt = 0x02;
1962         else
1963                 encrypt = 0x01;
1964
1965         if (!status) {
1966                 if (conn->sec_level == BT_SECURITY_SDP)
1967                         conn->sec_level = BT_SECURITY_LOW;
1968
1969                 if (conn->pending_sec_level > conn->sec_level)
1970                         conn->sec_level = conn->pending_sec_level;
1971         }
1972
1973         mutex_lock(&hci_cb_list_lock);
1974         list_for_each_entry(cb, &hci_cb_list, list) {
1975                 if (cb->security_cfm)
1976                         cb->security_cfm(conn, status, encrypt);
1977         }
1978         mutex_unlock(&hci_cb_list_lock);
1979
1980         if (conn->security_cfm_cb)
1981                 conn->security_cfm_cb(conn, status);
1982 }
1983
1984 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1985 {
1986         struct hci_cb *cb;
1987
1988         mutex_lock(&hci_cb_list_lock);
1989         list_for_each_entry(cb, &hci_cb_list, list) {
1990                 if (cb->key_change_cfm)
1991                         cb->key_change_cfm(conn, status);
1992         }
1993         mutex_unlock(&hci_cb_list_lock);
1994 }
1995
1996 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1997                                                                 __u8 role)
1998 {
1999         struct hci_cb *cb;
2000
2001         mutex_lock(&hci_cb_list_lock);
2002         list_for_each_entry(cb, &hci_cb_list, list) {
2003                 if (cb->role_switch_cfm)
2004                         cb->role_switch_cfm(conn, status, role);
2005         }
2006         mutex_unlock(&hci_cb_list_lock);
2007 }
2008
2009 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2010 {
2011         if (addr_type != ADDR_LE_DEV_RANDOM)
2012                 return false;
2013
2014         if ((bdaddr->b[5] & 0xc0) == 0x40)
2015                return true;
2016
2017         return false;
2018 }
2019
2020 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2021 {
2022         if (addr_type == ADDR_LE_DEV_PUBLIC)
2023                 return true;
2024
2025         /* Check for Random Static address type */
2026         if ((addr->b[5] & 0xc0) == 0xc0)
2027                 return true;
2028
2029         return false;
2030 }
2031
2032 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2033                                           bdaddr_t *bdaddr, u8 addr_type)
2034 {
2035         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2036                 return NULL;
2037
2038         return hci_find_irk_by_rpa(hdev, bdaddr);
2039 }
2040
2041 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2042                                         u16 to_multiplier)
2043 {
2044         u16 max_latency;
2045
2046         if (min > max || min < 6 || max > 3200)
2047                 return -EINVAL;
2048
2049         if (to_multiplier < 10 || to_multiplier > 3200)
2050                 return -EINVAL;
2051
2052         if (max >= to_multiplier * 8)
2053                 return -EINVAL;
2054
2055         max_latency = (to_multiplier * 4 / max) - 1;
2056         if (latency > 499 || latency > max_latency)
2057                 return -EINVAL;
2058
2059         return 0;
2060 }
2061
2062 int hci_register_cb(struct hci_cb *hcb);
2063 int hci_unregister_cb(struct hci_cb *hcb);
2064
2065 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2066                    const void *param);
2067
2068 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2069                  const void *param);
2070 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2071 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2072 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2073
2074 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2075 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2076
2077 u32 hci_conn_get_phy(struct hci_conn *conn);
2078
2079 /* ----- HCI Sockets ----- */
2080 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2081 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2082                          int flag, struct sock *skip_sk);
2083 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2084 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2085                                  void *data, u16 data_len, ktime_t tstamp,
2086                                  int flag, struct sock *skip_sk);
2087
2088 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2089
2090 #define HCI_MGMT_VAR_LEN        BIT(0)
2091 #define HCI_MGMT_NO_HDEV        BIT(1)
2092 #define HCI_MGMT_UNTRUSTED      BIT(2)
2093 #define HCI_MGMT_UNCONFIGURED   BIT(3)
2094 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
2095
2096 struct hci_mgmt_handler {
2097         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2098                      u16 data_len);
2099         size_t data_len;
2100         unsigned long flags;
2101 };
2102
2103 struct hci_mgmt_chan {
2104         struct list_head list;
2105         unsigned short channel;
2106         size_t handler_count;
2107         const struct hci_mgmt_handler *handlers;
2108 #ifdef TIZEN_BT
2109         size_t tizen_handler_count;
2110         const struct hci_mgmt_handler *tizen_handlers;
2111 #endif
2112         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2113 };
2114
2115 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2116 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2117
2118 /* Management interface */
2119 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
2120 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
2121                                          BIT(BDADDR_LE_RANDOM))
2122 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
2123                                          BIT(BDADDR_LE_PUBLIC) | \
2124                                          BIT(BDADDR_LE_RANDOM))
2125
2126 /* These LE scan and inquiry parameters were chosen according to LE General
2127  * Discovery Procedure specification.
2128  */
2129 #define DISCOV_LE_SCAN_WIN              0x12
2130 #define DISCOV_LE_SCAN_INT              0x12
2131 #define DISCOV_LE_TIMEOUT               10240   /* msec */
2132 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
2133 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
2134 #define DISCOV_BREDR_INQUIRY_LEN        0x08
2135 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
2136 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
2137 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
2138 #define DISCOV_LE_PER_ADV_INT_MIN       0x00A0  /* 200 msec */
2139 #define DISCOV_LE_PER_ADV_INT_MAX       0x00A0  /* 200 msec */
2140 #define DISCOV_LE_ADV_MESH_MIN          0x00A0  /* 100 msec */
2141 #define DISCOV_LE_ADV_MESH_MAX          0x00A0  /* 100 msec */
2142 #define INTERVAL_TO_MS(x)               (((x) * 10) / 0x10)
2143
2144 #define NAME_RESOLVE_DURATION           msecs_to_jiffies(10240) /* 10.24 sec */
2145
2146 void mgmt_fill_version_info(void *ver);
2147 int mgmt_new_settings(struct hci_dev *hdev);
2148 void mgmt_index_added(struct hci_dev *hdev);
2149 void mgmt_index_removed(struct hci_dev *hdev);
2150 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2151 void mgmt_power_on(struct hci_dev *hdev, int err);
2152 void __mgmt_power_off(struct hci_dev *hdev);
2153 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2154                        bool persistent);
2155 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2156                            u8 *name, u8 name_len);
2157 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2158                               u8 link_type, u8 addr_type, u8 reason,
2159                               bool mgmt_connected);
2160 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2161                             u8 link_type, u8 addr_type, u8 status);
2162 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2163                          u8 addr_type, u8 status);
2164 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2165 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2166                                   u8 status);
2167 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2168                                       u8 status);
2169 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2170                               u8 link_type, u8 addr_type, u32 value,
2171                               u8 confirm_hint);
2172 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2173                                      u8 link_type, u8 addr_type, u8 status);
2174 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2175                                          u8 link_type, u8 addr_type, u8 status);
2176 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2177                               u8 link_type, u8 addr_type);
2178 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2179                                      u8 link_type, u8 addr_type, u8 status);
2180 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2181                                          u8 link_type, u8 addr_type, u8 status);
2182 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2183                              u8 link_type, u8 addr_type, u32 passkey,
2184                              u8 entered);
2185 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2186 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2187 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2188                                     u8 status);
2189 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2190 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2191 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2192 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2193                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2194                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2195                        u64 instant);
2196 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2197                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2198 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2199 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2200 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2201                    u8 addr_type);
2202 bool mgmt_powering_down(struct hci_dev *hdev);
2203 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2204 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2205 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2206                    bool persistent);
2207 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2208                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
2209                          u16 max_interval, u16 latency, u16 timeout);
2210 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2211 bool mgmt_get_connectable(struct hci_dev *hdev);
2212 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2213 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2214                             u8 instance);
2215 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2216                               u8 instance);
2217 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2218 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2219 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2220                                   bdaddr_t *bdaddr, u8 addr_type);
2221
2222 #ifdef TIZEN_BT
2223 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
2224                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2225 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
2226                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2227 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
2228                 void *data, u16 len);
2229 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
2230                 s8 alert_type, s8 rssi_dbm);
2231 void mgmt_raw_rssi_response(struct hci_dev *hdev,
2232                 struct hci_cc_rp_get_raw_rssi *rp, int success);
2233 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
2234 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
2235                 u8 name_len);
2236 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
2237 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
2238                 u8 dst_type, u16 conn_interval, u16 conn_latency,
2239                 u16 supervision_timeout);
2240 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2241                 u8 link_type, u8 addr_type, u8 status);
2242 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
2243 void mgmt_tx_timeout_error(struct hci_dev *hdev);
2244 /*  Pass adv type in the le device found */
2245 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2246                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
2247                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
2248 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
2249                 u8 state_change_reason, u16 connection_handle);
2250 void mgmt_6lowpan_conn_changed(struct hci_dev *hdev, char if_name[16],
2251                 bdaddr_t *bdaddr, u8 addr_type, bool connected);
2252 void mgmt_le_read_maximum_data_length_complete(struct hci_dev *hdev,
2253                 u8 status);
2254 void mgmt_le_write_host_suggested_data_length_complete(struct hci_dev *hdev,
2255                 u8 status);
2256 void mgmt_le_read_host_suggested_data_length_complete(struct hci_dev *hdev,
2257                 u8 status);
2258 void mgmt_le_data_length_change_complete(struct hci_dev *hdev,
2259                 bdaddr_t *bdaddr, u16 tx_octets, u16 tx_time,
2260                 u16 rx_octets, u16 rx_time);
2261 int hci_le_set_data_length(struct hci_conn *conn, u16 tx_octets, u16 tx_time);
2262 #endif
2263
2264 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2265 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2266                       u16 to_multiplier);
2267 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2268                       __u8 ltk[16], __u8 key_size);
2269
2270 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2271                                u8 *bdaddr_type);
2272
2273 #define SCO_AIRMODE_MASK       0x0003
2274 #define SCO_AIRMODE_CVSD       0x0000
2275 #define SCO_AIRMODE_TRANSP     0x0003
2276
2277 #define LOCAL_CODEC_ACL_MASK    BIT(0)
2278 #define LOCAL_CODEC_SCO_MASK    BIT(1)
2279
2280 #define TRANSPORT_TYPE_MAX      0x04
2281
2282 #endif /* __HCI_CORE_H */