include/net/bluetooth/hci_core.h

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