Pileus Git - ~andy/linux/blob - 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 <net/bluetooth/hci.h>
  29
  30 /* HCI priority */
  31 #define HCI_PRIO_MAX    7
  32
  33 /* HCI Core structures */
  34 struct inquiry_data {
  35         bdaddr_t        bdaddr;
  36         __u8            pscan_rep_mode;
  37         __u8            pscan_period_mode;
  38         __u8            pscan_mode;
  39         __u8            dev_class[3];
  40         __le16          clock_offset;
  41         __s8            rssi;
  42         __u8            ssp_mode;
  43 };
  44
  45 struct inquiry_entry {
  46         struct list_head        all;            /* inq_cache.all */
  47         struct list_head        list;           /* unknown or resolve */
  48         enum {
  49                 NAME_NOT_KNOWN,
  50                 NAME_NEEDED,
  51                 NAME_PENDING,
  52                 NAME_KNOWN,
  53         } name_state;
  54         __u32                   timestamp;
  55         struct inquiry_data     data;
  56 };
  57
  58 struct discovery_state {
  59         int                     type;
  60         enum {
  61                 DISCOVERY_STOPPED,
  62                 DISCOVERY_STARTING,
  63                 DISCOVERY_FINDING,
  64                 DISCOVERY_RESOLVING,
  65                 DISCOVERY_STOPPING,
  66         } state;
  67         struct list_head        all;    /* All devices found during inquiry */
  68         struct list_head        unknown;        /* Name state not known */
  69         struct list_head        resolve;        /* Name needs to be resolved */
  70         __u32                   timestamp;
  71 };
  72
  73 struct hci_conn_hash {
  74         struct list_head list;
  75         unsigned int     acl_num;
  76         unsigned int     amp_num;
  77         unsigned int     sco_num;
  78         unsigned int     le_num;
  79 };
  80
  81 struct bdaddr_list {
  82         struct list_head list;
  83         bdaddr_t bdaddr;
  84         u8 bdaddr_type;
  85 };
  86
  87 struct bt_uuid {
  88         struct list_head list;
  89         u8 uuid[16];
  90         u8 size;
  91         u8 svc_hint;
  92 };
  93
  94 struct smp_ltk {
  95         struct list_head list;
  96         bdaddr_t bdaddr;
  97         u8 bdaddr_type;
  98         u8 authenticated;
  99         u8 type;
 100         u8 enc_size;
 101         __le16 ediv;
 102         u8 rand[8];
 103         u8 val[16];
 104 } __packed;
 105
 106 struct link_key {
 107         struct list_head list;
 108         bdaddr_t bdaddr;
 109         u8 type;
 110         u8 val[HCI_LINK_KEY_SIZE];
 111         u8 pin_len;
 112 };
 113
 114 struct oob_data {
 115         struct list_head list;
 116         bdaddr_t bdaddr;
 117         u8 hash[16];
 118         u8 randomizer[16];
 119 };
 120
 121 #define HCI_MAX_SHORT_NAME_LENGTH       10
 122
 123 struct amp_assoc {
 124         __u16   len;
 125         __u16   offset;
 126         __u16   rem_len;
 127         __u16   len_so_far;
 128         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 129 };
 130
 131 #define HCI_MAX_PAGES   3
 132
 133 #define NUM_REASSEMBLY 4
 134 struct hci_dev {
 135         struct list_head list;
 136         struct mutex    lock;
 137
 138         char            name[8];
 139         unsigned long   flags;
 140         __u16           id;
 141         __u8            bus;
 142         __u8            dev_type;
 143         bdaddr_t        bdaddr;
 144         bdaddr_t        static_addr;
 145         __u8            own_addr_type;
 146         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 147         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 148         __u8            eir[HCI_MAX_EIR_LENGTH];
 149         __u8            dev_class[3];
 150         __u8            major_class;
 151         __u8            minor_class;
 152         __u8            max_page;
 153         __u8            features[HCI_MAX_PAGES][8];
 154         __u8            le_features[8];
 155         __u8            le_white_list_size;
 156         __u8            le_states[8];
 157         __u8            commands[64];
 158         __u8            hci_ver;
 159         __u16           hci_rev;
 160         __u8            lmp_ver;
 161         __u16           manufacturer;
 162         __u16           lmp_subver;
 163         __u16           voice_setting;
 164         __u8            num_iac;
 165         __u8            io_capability;
 166         __s8            inq_tx_power;
 167         __u16           page_scan_interval;
 168         __u16           page_scan_window;
 169         __u8            page_scan_type;
 170         __u16           le_scan_interval;
 171         __u16           le_scan_window;
 172         __u16           le_conn_min_interval;
 173         __u16           le_conn_max_interval;
 174         __u8            ssp_debug_mode;
 175
 176         __u16           devid_source;
 177         __u16           devid_vendor;
 178         __u16           devid_product;
 179         __u16           devid_version;
 180
 181         __u16           pkt_type;
 182         __u16           esco_type;
 183         __u16           link_policy;
 184         __u16           link_mode;
 185
 186         __u32           idle_timeout;
 187         __u16           sniff_min_interval;
 188         __u16           sniff_max_interval;
 189
 190         __u8            amp_status;
 191         __u32           amp_total_bw;
 192         __u32           amp_max_bw;
 193         __u32           amp_min_latency;
 194         __u32           amp_max_pdu;
 195         __u8            amp_type;
 196         __u16           amp_pal_cap;
 197         __u16           amp_assoc_size;
 198         __u32           amp_max_flush_to;
 199         __u32           amp_be_flush_to;
 200
 201         struct amp_assoc        loc_assoc;
 202
 203         __u8            flow_ctl_mode;
 204
 205         unsigned int    auto_accept_delay;
 206
 207         unsigned long   quirks;
 208
 209         atomic_t        cmd_cnt;
 210         unsigned int    acl_cnt;
 211         unsigned int    sco_cnt;
 212         unsigned int    le_cnt;
 213
 214         unsigned int    acl_mtu;
 215         unsigned int    sco_mtu;
 216         unsigned int    le_mtu;
 217         unsigned int    acl_pkts;
 218         unsigned int    sco_pkts;
 219         unsigned int    le_pkts;
 220
 221         __u16           block_len;
 222         __u16           block_mtu;
 223         __u16           num_blocks;
 224         __u16           block_cnt;
 225
 226         unsigned long   acl_last_tx;
 227         unsigned long   sco_last_tx;
 228         unsigned long   le_last_tx;
 229
 230         struct workqueue_struct *workqueue;
 231         struct workqueue_struct *req_workqueue;
 232
 233         struct work_struct      power_on;
 234         struct delayed_work     power_off;
 235
 236         __u16                   discov_timeout;
 237         struct delayed_work     discov_off;
 238
 239         struct delayed_work     service_cache;
 240
 241         struct timer_list       cmd_timer;
 242
 243         struct work_struct      rx_work;
 244         struct work_struct      cmd_work;
 245         struct work_struct      tx_work;
 246
 247         struct sk_buff_head     rx_q;
 248         struct sk_buff_head     raw_q;
 249         struct sk_buff_head     cmd_q;
 250
 251         struct sk_buff          *recv_evt;
 252         struct sk_buff          *sent_cmd;
 253         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 254
 255         struct mutex            req_lock;
 256         wait_queue_head_t       req_wait_q;
 257         __u32                   req_status;
 258         __u32                   req_result;
 259
 260         struct list_head        mgmt_pending;
 261
 262         struct discovery_state  discovery;
 263         struct hci_conn_hash    conn_hash;
 264         struct list_head        blacklist;
 265
 266         struct list_head        uuids;
 267
 268         struct list_head        link_keys;
 269
 270         struct list_head        long_term_keys;
 271
 272         struct list_head        remote_oob_data;
 273
 274         struct hci_dev_stats    stat;
 275
 276         atomic_t                promisc;
 277
 278         struct dentry           *debugfs;
 279
 280         struct device           dev;
 281
 282         struct rfkill           *rfkill;
 283
 284         unsigned long           dev_flags;
 285
 286         struct delayed_work     le_scan_disable;
 287
 288         __s8                    adv_tx_power;
 289         __u8                    adv_data[HCI_MAX_AD_LENGTH];
 290         __u8                    adv_data_len;
 291         __u8                    scan_rsp_data[HCI_MAX_AD_LENGTH];
 292         __u8                    scan_rsp_data_len;
 293
 294         int (*open)(struct hci_dev *hdev);
 295         int (*close)(struct hci_dev *hdev);
 296         int (*flush)(struct hci_dev *hdev);
 297         int (*setup)(struct hci_dev *hdev);
 298         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 299         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 300 };
 301
 302 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 303
 304 struct hci_conn {
 305         struct list_head list;
 306
 307         atomic_t        refcnt;
 308
 309         bdaddr_t        dst;
 310         __u8            dst_type;
 311         bdaddr_t        src;
 312         __u8            src_type;
 313         __u16           handle;
 314         __u16           state;
 315         __u8            mode;
 316         __u8            type;
 317         bool            out;
 318         __u8            attempt;
 319         __u8            dev_class[3];
 320         __u8            features[HCI_MAX_PAGES][8];
 321         __u16           pkt_type;
 322         __u16           link_policy;
 323         __u32           link_mode;
 324         __u8            key_type;
 325         __u8            auth_type;
 326         __u8            sec_level;
 327         __u8            pending_sec_level;
 328         __u8            pin_length;
 329         __u8            enc_key_size;
 330         __u8            io_capability;
 331         __u32           passkey_notify;
 332         __u8            passkey_entered;
 333         __u16           disc_timeout;
 334         __u16           setting;
 335         unsigned long   flags;
 336
 337         __u8            remote_cap;
 338         __u8            remote_auth;
 339         __u8            remote_id;
 340         bool            flush_key;
 341
 342         unsigned int    sent;
 343
 344         struct sk_buff_head data_q;
 345         struct list_head chan_list;
 346
 347         struct delayed_work disc_work;
 348         struct delayed_work auto_accept_work;
 349         struct delayed_work idle_work;
 350
 351         struct device   dev;
 352
 353         struct hci_dev  *hdev;
 354         void            *l2cap_data;
 355         void            *sco_data;
 356         void            *smp_conn;
 357         struct amp_mgr  *amp_mgr;
 358
 359         struct hci_conn *link;
 360
 361         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 362         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 363         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 364 };
 365
 366 struct hci_chan {
 367         struct list_head list;
 368         __u16 handle;
 369         struct hci_conn *conn;
 370         struct sk_buff_head data_q;
 371         unsigned int    sent;
 372         __u8            state;
 373 };
 374
 375 extern struct list_head hci_dev_list;
 376 extern struct list_head hci_cb_list;
 377 extern rwlock_t hci_dev_list_lock;
 378 extern rwlock_t hci_cb_list_lock;
 379
 380 /* ----- HCI interface to upper protocols ----- */
 381 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 382 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
 383 int l2cap_disconn_ind(struct hci_conn *hcon);
 384 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
 385 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
 386 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 387
 388 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 389 void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
 390 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
 391 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 392
 393 /* ----- Inquiry cache ----- */
 394 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 395 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 396
 397 static inline void discovery_init(struct hci_dev *hdev)
 398 {
 399         hdev->discovery.state = DISCOVERY_STOPPED;
 400         INIT_LIST_HEAD(&hdev->discovery.all);
 401         INIT_LIST_HEAD(&hdev->discovery.unknown);
 402         INIT_LIST_HEAD(&hdev->discovery.resolve);
 403 }
 404
 405 bool hci_discovery_active(struct hci_dev *hdev);
 406
 407 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 408
 409 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 410 {
 411         return list_empty(&hdev->discovery.all);
 412 }
 413
 414 static inline long inquiry_cache_age(struct hci_dev *hdev)
 415 {
 416         struct discovery_state *c = &hdev->discovery;
 417         return jiffies - c->timestamp;
 418 }
 419
 420 static inline long inquiry_entry_age(struct inquiry_entry *e)
 421 {
 422         return jiffies - e->timestamp;
 423 }
 424
 425 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 426                                                bdaddr_t *bdaddr);
 427 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 428                                                        bdaddr_t *bdaddr);
 429 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 430                                                        bdaddr_t *bdaddr,
 431                                                        int state);
 432 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 433                                       struct inquiry_entry *ie);
 434 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 435                               bool name_known, bool *ssp);
 436 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 437
 438 /* ----- HCI Connections ----- */
 439 enum {
 440         HCI_CONN_AUTH_PEND,
 441         HCI_CONN_REAUTH_PEND,
 442         HCI_CONN_ENCRYPT_PEND,
 443         HCI_CONN_RSWITCH_PEND,
 444         HCI_CONN_MODE_CHANGE_PEND,
 445         HCI_CONN_SCO_SETUP_PEND,
 446         HCI_CONN_LE_SMP_PEND,
 447         HCI_CONN_MGMT_CONNECTED,
 448         HCI_CONN_SSP_ENABLED,
 449         HCI_CONN_POWER_SAVE,
 450         HCI_CONN_REMOTE_OOB,
 451         HCI_CONN_6LOWPAN,
 452 };
 453
 454 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 455 {
 456         struct hci_dev *hdev = conn->hdev;
 457         return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
 458                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 459 }
 460
 461 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 462 {
 463         struct hci_conn_hash *h = &hdev->conn_hash;
 464         list_add_rcu(&c->list, &h->list);
 465         switch (c->type) {
 466         case ACL_LINK:
 467                 h->acl_num++;
 468                 break;
 469         case AMP_LINK:
 470                 h->amp_num++;
 471                 break;
 472         case LE_LINK:
 473                 h->le_num++;
 474                 break;
 475         case SCO_LINK:
 476         case ESCO_LINK:
 477                 h->sco_num++;
 478                 break;
 479         }
 480 }
 481
 482 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 483 {
 484         struct hci_conn_hash *h = &hdev->conn_hash;
 485
 486         list_del_rcu(&c->list);
 487         synchronize_rcu();
 488
 489         switch (c->type) {
 490         case ACL_LINK:
 491                 h->acl_num--;
 492                 break;
 493         case AMP_LINK:
 494                 h->amp_num--;
 495                 break;
 496         case LE_LINK:
 497                 h->le_num--;
 498                 break;
 499         case SCO_LINK:
 500         case ESCO_LINK:
 501                 h->sco_num--;
 502                 break;
 503         }
 504 }
 505
 506 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 507 {
 508         struct hci_conn_hash *h = &hdev->conn_hash;
 509         switch (type) {
 510         case ACL_LINK:
 511                 return h->acl_num;
 512         case AMP_LINK:
 513                 return h->amp_num;
 514         case LE_LINK:
 515                 return h->le_num;
 516         case SCO_LINK:
 517         case ESCO_LINK:
 518                 return h->sco_num;
 519         default:
 520                 return 0;
 521         }
 522 }
 523
 524 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 525                                                                 __u16 handle)
 526 {
 527         struct hci_conn_hash *h = &hdev->conn_hash;
 528         struct hci_conn  *c;
 529
 530         rcu_read_lock();
 531
 532         list_for_each_entry_rcu(c, &h->list, list) {
 533                 if (c->handle == handle) {
 534                         rcu_read_unlock();
 535                         return c;
 536                 }
 537         }
 538         rcu_read_unlock();
 539
 540         return NULL;
 541 }
 542
 543 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 544                                                         __u8 type, bdaddr_t *ba)
 545 {
 546         struct hci_conn_hash *h = &hdev->conn_hash;
 547         struct hci_conn  *c;
 548
 549         rcu_read_lock();
 550
 551         list_for_each_entry_rcu(c, &h->list, list) {
 552                 if (c->type == type && !bacmp(&c->dst, ba)) {
 553                         rcu_read_unlock();
 554                         return c;
 555                 }
 556         }
 557
 558         rcu_read_unlock();
 559
 560         return NULL;
 561 }
 562
 563 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 564                                                         __u8 type, __u16 state)
 565 {
 566         struct hci_conn_hash *h = &hdev->conn_hash;
 567         struct hci_conn  *c;
 568
 569         rcu_read_lock();
 570
 571         list_for_each_entry_rcu(c, &h->list, list) {
 572                 if (c->type == type && c->state == state) {
 573                         rcu_read_unlock();
 574                         return c;
 575                 }
 576         }
 577
 578         rcu_read_unlock();
 579
 580         return NULL;
 581 }
 582
 583 void hci_disconnect(struct hci_conn *conn, __u8 reason);
 584 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
 585 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 586
 587 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 588 int hci_conn_del(struct hci_conn *conn);
 589 void hci_conn_hash_flush(struct hci_dev *hdev);
 590 void hci_conn_check_pending(struct hci_dev *hdev);
 591
 592 struct hci_chan *hci_chan_create(struct hci_conn *conn);
 593 void hci_chan_del(struct hci_chan *chan);
 594 void hci_chan_list_flush(struct hci_conn *conn);
 595 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
 596
 597 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 598                              __u8 dst_type, __u8 sec_level, __u8 auth_type);
 599 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
 600                                  __u16 setting);
 601 int hci_conn_check_link_mode(struct hci_conn *conn);
 602 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 603 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 604 int hci_conn_change_link_key(struct hci_conn *conn);
 605 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 606
 607 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
 608
 609 /*
 610  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
 611  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
 612  * working or anything else. They just guarantee that the object is available
 613  * and can be dereferenced. So you can use its locks, local variables and any
 614  * other constant data.
 615  * Before accessing runtime data, you _must_ lock the object and then check that
 616  * it is still running. As soon as you release the locks, the connection might
 617  * get dropped, though.
 618  *
 619  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
 620  * how long the underlying connection is held. So every channel that runs on the
 621  * hci_conn object calls this to prevent the connection from disappearing. As
 622  * long as you hold a device, you must also guarantee that you have a valid
 623  * reference to the device via hci_conn_get() (or the initial reference from
 624  * hci_conn_add()).
 625  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
 626  * break because nobody cares for that. But this means, we cannot use
 627  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
 628  */
 629
 630 static inline void hci_conn_get(struct hci_conn *conn)
 631 {
 632         get_device(&conn->dev);
 633 }
 634
 635 static inline void hci_conn_put(struct hci_conn *conn)
 636 {
 637         put_device(&conn->dev);
 638 }
 639
 640 static inline void hci_conn_hold(struct hci_conn *conn)
 641 {
 642         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
 643
 644         atomic_inc(&conn->refcnt);
 645         cancel_delayed_work(&conn->disc_work);
 646 }
 647
 648 static inline void hci_conn_drop(struct hci_conn *conn)
 649 {
 650         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
 651
 652         if (atomic_dec_and_test(&conn->refcnt)) {
 653                 unsigned long timeo;
 654
 655                 switch (conn->type) {
 656                 case ACL_LINK:
 657                 case LE_LINK:
 658                         cancel_delayed_work(&conn->idle_work);
 659                         if (conn->state == BT_CONNECTED) {
 660                                 timeo = conn->disc_timeout;
 661                                 if (!conn->out)
 662                                         timeo *= 2;
 663                         } else {
 664                                 timeo = msecs_to_jiffies(10);
 665                         }
 666                         break;
 667
 668                 case AMP_LINK:
 669                         timeo = conn->disc_timeout;
 670                         break;
 671
 672                 default:
 673                         timeo = msecs_to_jiffies(10);
 674                         break;
 675                 }
 676
 677                 cancel_delayed_work(&conn->disc_work);
 678                 queue_delayed_work(conn->hdev->workqueue,
 679                                    &conn->disc_work, timeo);
 680         }
 681 }
 682
 683 /* ----- HCI Devices ----- */
 684 static inline void hci_dev_put(struct hci_dev *d)
 685 {
 686         BT_DBG("%s orig refcnt %d", d->name,
 687                atomic_read(&d->dev.kobj.kref.refcount));
 688
 689         put_device(&d->dev);
 690 }
 691
 692 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 693 {
 694         BT_DBG("%s orig refcnt %d", d->name,
 695                atomic_read(&d->dev.kobj.kref.refcount));
 696
 697         get_device(&d->dev);
 698         return d;
 699 }
 700
 701 #define hci_dev_lock(d)         mutex_lock(&d->lock)
 702 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
 703
 704 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
 705 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
 706
 707 static inline void *hci_get_drvdata(struct hci_dev *hdev)
 708 {
 709         return dev_get_drvdata(&hdev->dev);
 710 }
 711
 712 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
 713 {
 714         dev_set_drvdata(&hdev->dev, data);
 715 }
 716
 717 struct hci_dev *hci_dev_get(int index);
 718 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
 719
 720 struct hci_dev *hci_alloc_dev(void);
 721 void hci_free_dev(struct hci_dev *hdev);
 722 int hci_register_dev(struct hci_dev *hdev);
 723 void hci_unregister_dev(struct hci_dev *hdev);
 724 int hci_suspend_dev(struct hci_dev *hdev);
 725 int hci_resume_dev(struct hci_dev *hdev);
 726 int hci_dev_open(__u16 dev);
 727 int hci_dev_close(__u16 dev);
 728 int hci_dev_reset(__u16 dev);
 729 int hci_dev_reset_stat(__u16 dev);
 730 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 731 int hci_get_dev_list(void __user *arg);
 732 int hci_get_dev_info(void __user *arg);
 733 int hci_get_conn_list(void __user *arg);
 734 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 735 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 736 int hci_inquiry(void __user *arg);
 737
 738 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
 739                                          bdaddr_t *bdaddr, u8 type);
 740 int hci_blacklist_clear(struct hci_dev *hdev);
 741 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 742 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 743
 744 int hci_uuids_clear(struct hci_dev *hdev);
 745
 746 int hci_link_keys_clear(struct hci_dev *hdev);
 747 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 748 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 749                      bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
 750 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
 751 int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
 752                 int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
 753                 __le16 ediv, u8 rand[8]);
 754 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
 755                                      u8 addr_type);
 756 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
 757 int hci_smp_ltks_clear(struct hci_dev *hdev);
 758 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 759
 760 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 761 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 762                                                         bdaddr_t *bdaddr);
 763 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 764                                                                 u8 *randomizer);
 765 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 766
 767 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 768
 769 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
 770 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 771 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 772
 773 void hci_init_sysfs(struct hci_dev *hdev);
 774 void hci_conn_init_sysfs(struct hci_conn *conn);
 775 void hci_conn_add_sysfs(struct hci_conn *conn);
 776 void hci_conn_del_sysfs(struct hci_conn *conn);
 777
 778 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
 779
 780 /* ----- LMP capabilities ----- */
 781 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
 782 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
 783 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
 784 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
 785 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
 786 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
 787 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
 788 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
 789 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
 790 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
 791 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
 792 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
 793 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
 794 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
 795 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
 796 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
 797 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
 798 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
 799 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
 800
 801 /* ----- Extended LMP capabilities ----- */
 802 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
 803 #define lmp_csb_slave_capable(dev)  ((dev)->features[2][0] & LMP_CSB_SLAVE)
 804 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
 805 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
 806
 807 /* ----- Host capabilities ----- */
 808 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
 809 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
 810 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
 811
 812 /* ----- HCI protocols ----- */
 813 #define HCI_PROTO_DEFER             0x01
 814
 815 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 816                                         __u8 type, __u8 *flags)
 817 {
 818         switch (type) {
 819         case ACL_LINK:
 820                 return l2cap_connect_ind(hdev, bdaddr);
 821
 822         case SCO_LINK:
 823         case ESCO_LINK:
 824                 return sco_connect_ind(hdev, bdaddr, flags);
 825
 826         default:
 827                 BT_ERR("unknown link type %d", type);
 828                 return -EINVAL;
 829         }
 830 }
 831
 832 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 833 {
 834         switch (conn->type) {
 835         case ACL_LINK:
 836         case LE_LINK:
 837                 l2cap_connect_cfm(conn, status);
 838                 break;
 839
 840         case SCO_LINK:
 841         case ESCO_LINK:
 842                 sco_connect_cfm(conn, status);
 843                 break;
 844
 845         default:
 846                 BT_ERR("unknown link type %d", conn->type);
 847                 break;
 848         }
 849
 850         if (conn->connect_cfm_cb)
 851                 conn->connect_cfm_cb(conn, status);
 852 }
 853
 854 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 855 {
 856         if (conn->type != ACL_LINK && conn->type != LE_LINK)
 857                 return HCI_ERROR_REMOTE_USER_TERM;
 858
 859         return l2cap_disconn_ind(conn);
 860 }
 861
 862 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 863 {
 864         switch (conn->type) {
 865         case ACL_LINK:
 866         case LE_LINK:
 867                 l2cap_disconn_cfm(conn, reason);
 868                 break;
 869
 870         case SCO_LINK:
 871         case ESCO_LINK:
 872                 sco_disconn_cfm(conn, reason);
 873                 break;
 874
 875         /* L2CAP would be handled for BREDR chan */
 876         case AMP_LINK:
 877                 break;
 878
 879         default:
 880                 BT_ERR("unknown link type %d", conn->type);
 881                 break;
 882         }
 883
 884         if (conn->disconn_cfm_cb)
 885                 conn->disconn_cfm_cb(conn, reason);
 886 }
 887
 888 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 889 {
 890         __u8 encrypt;
 891
 892         if (conn->type != ACL_LINK && conn->type != LE_LINK)
 893                 return;
 894
 895         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
 896                 return;
 897
 898         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 899         l2cap_security_cfm(conn, status, encrypt);
 900
 901         if (conn->security_cfm_cb)
 902                 conn->security_cfm_cb(conn, status);
 903 }
 904
 905 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
 906                                                                 __u8 encrypt)
 907 {
 908         if (conn->type != ACL_LINK && conn->type != LE_LINK)
 909                 return;
 910
 911         l2cap_security_cfm(conn, status, encrypt);
 912
 913         if (conn->security_cfm_cb)
 914                 conn->security_cfm_cb(conn, status);
 915 }
 916
 917 /* ----- HCI callbacks ----- */
 918 struct hci_cb {
 919         struct list_head list;
 920
 921         char *name;
 922
 923         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
 924                                                                 __u8 encrypt);
 925         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 926         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 927 };
 928
 929 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 930 {
 931         struct hci_cb *cb;
 932         __u8 encrypt;
 933
 934         hci_proto_auth_cfm(conn, status);
 935
 936         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
 937                 return;
 938
 939         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 940
 941         read_lock(&hci_cb_list_lock);
 942         list_for_each_entry(cb, &hci_cb_list, list) {
 943                 if (cb->security_cfm)
 944                         cb->security_cfm(conn, status, encrypt);
 945         }
 946         read_unlock(&hci_cb_list_lock);
 947 }
 948
 949 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
 950                                                                 __u8 encrypt)
 951 {
 952         struct hci_cb *cb;
 953
 954         if (conn->sec_level == BT_SECURITY_SDP)
 955                 conn->sec_level = BT_SECURITY_LOW;
 956
 957         if (conn->pending_sec_level > conn->sec_level)
 958                 conn->sec_level = conn->pending_sec_level;
 959
 960         hci_proto_encrypt_cfm(conn, status, encrypt);
 961
 962         read_lock(&hci_cb_list_lock);
 963         list_for_each_entry(cb, &hci_cb_list, list) {
 964                 if (cb->security_cfm)
 965                         cb->security_cfm(conn, status, encrypt);
 966         }
 967         read_unlock(&hci_cb_list_lock);
 968 }
 969
 970 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 971 {
 972         struct hci_cb *cb;
 973
 974         read_lock(&hci_cb_list_lock);
 975         list_for_each_entry(cb, &hci_cb_list, list) {
 976                 if (cb->key_change_cfm)
 977                         cb->key_change_cfm(conn, status);
 978         }
 979         read_unlock(&hci_cb_list_lock);
 980 }
 981
 982 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
 983                                                                 __u8 role)
 984 {
 985         struct hci_cb *cb;
 986
 987         read_lock(&hci_cb_list_lock);
 988         list_for_each_entry(cb, &hci_cb_list, list) {
 989                 if (cb->role_switch_cfm)
 990                         cb->role_switch_cfm(conn, status, role);
 991         }
 992         read_unlock(&hci_cb_list_lock);
 993 }
 994
 995 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
 996 {
 997         size_t parsed = 0;
 998
 999         if (data_len < 2)
1000                 return false;
1001
1002         while (parsed < data_len - 1) {
1003                 u8 field_len = data[0];
1004
1005                 if (field_len == 0)
1006                         break;
1007
1008                 parsed += field_len + 1;
1009
1010                 if (parsed > data_len)
1011                         break;
1012
1013                 if (data[1] == type)
1014                         return true;
1015
1016                 data += field_len + 1;
1017         }
1018
1019         return false;
1020 }
1021
1022 int hci_register_cb(struct hci_cb *hcb);
1023 int hci_unregister_cb(struct hci_cb *hcb);
1024
1025 struct hci_request {
1026         struct hci_dev          *hdev;
1027         struct sk_buff_head     cmd_q;
1028
1029         /* If something goes wrong when building the HCI request, the error
1030          * value is stored in this field.
1031          */
1032         int                     err;
1033 };
1034
1035 void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
1036 int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
1037 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
1038                  const void *param);
1039 void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
1040                     const void *param, u8 event);
1041 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
1042
1043 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1044                                const void *param, u32 timeout);
1045 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1046                                   const void *param, u8 event, u32 timeout);
1047
1048 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1049                  const void *param);
1050 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1051 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1052
1053 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1054
1055 /* ----- HCI Sockets ----- */
1056 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1057 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
1058 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1059
1060 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1061
1062 /* Management interface */
1063 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1064 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1065                                          BIT(BDADDR_LE_RANDOM))
1066 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1067                                          BIT(BDADDR_LE_PUBLIC) | \
1068                                          BIT(BDADDR_LE_RANDOM))
1069
1070 /* These LE scan and inquiry parameters were chosen according to LE General
1071  * Discovery Procedure specification.
1072  */
1073 #define DISCOV_LE_SCAN_WIN              0x12
1074 #define DISCOV_LE_SCAN_INT              0x12
1075 #define DISCOV_LE_TIMEOUT               msecs_to_jiffies(10240)
1076 #define DISCOV_INTERLEAVED_TIMEOUT      msecs_to_jiffies(5120)
1077 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
1078 #define DISCOV_BREDR_INQUIRY_LEN        0x08
1079
1080 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1081 void mgmt_index_added(struct hci_dev *hdev);
1082 void mgmt_index_removed(struct hci_dev *hdev);
1083 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1084 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1085 void mgmt_discoverable_timeout(struct hci_dev *hdev);
1086 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1087 void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1088 void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1089 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1090                        bool persistent);
1091 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1092                            u8 addr_type, u32 flags, u8 *name, u8 name_len,
1093                            u8 *dev_class);
1094 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1095                               u8 link_type, u8 addr_type, u8 reason);
1096 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1097                             u8 link_type, u8 addr_type, u8 status);
1098 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1099                          u8 addr_type, u8 status);
1100 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1101 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1102                                   u8 status);
1103 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1104                                       u8 status);
1105 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1106                               u8 link_type, u8 addr_type, __le32 value,
1107                               u8 confirm_hint);
1108 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1109                                      u8 link_type, u8 addr_type, u8 status);
1110 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1111                                          u8 link_type, u8 addr_type, u8 status);
1112 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1113                               u8 link_type, u8 addr_type);
1114 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1115                                      u8 link_type, u8 addr_type, u8 status);
1116 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1117                                          u8 link_type, u8 addr_type, u8 status);
1118 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1119                              u8 link_type, u8 addr_type, u32 passkey,
1120                              u8 entered);
1121 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1122                       u8 addr_type, u8 status);
1123 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1124 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1125 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1126                                     u8 status);
1127 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1128 void mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
1129                                              u8 *randomizer, u8 status);
1130 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1131                        u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
1132                        u8 ssp, u8 *eir, u16 eir_len);
1133 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1134                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1135 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1136 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1137 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1138 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1139 void mgmt_reenable_advertising(struct hci_dev *hdev);
1140
1141 /* HCI info for socket */
1142 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1143
1144 struct hci_pinfo {
1145         struct bt_sock    bt;
1146         struct hci_dev    *hdev;
1147         struct hci_filter filter;
1148         __u32             cmsg_mask;
1149         unsigned short   channel;
1150 };
1151
1152 /* HCI security filter */
1153 #define HCI_SFLT_MAX_OGF  5
1154
1155 struct hci_sec_filter {
1156         __u32 type_mask;
1157         __u32 event_mask[2];
1158         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1159 };
1160
1161 /* ----- HCI requests ----- */
1162 #define HCI_REQ_DONE      0
1163 #define HCI_REQ_PEND      1
1164 #define HCI_REQ_CANCELED  2
1165
1166 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
1167 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
1168
1169 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1170                                         u16 latency, u16 to_multiplier);
1171 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1172                                                         __u8 ltk[16]);
1173
1174 #define SCO_AIRMODE_MASK       0x0003
1175 #define SCO_AIRMODE_CVSD       0x0000
1176 #define SCO_AIRMODE_TRANSP     0x0003
1177
1178 #endif /* __HCI_CORE_H */