include/net/bluetooth/hci_core.h

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (C) 2000-2001 Qualcomm Incorporated
   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 upper protocols */
  31 #define HCI_PROTO_L2CAP 0
  32 #define HCI_PROTO_SCO   1
  33
  34 /* HCI Core structures */
  35 struct inquiry_data {
  36         bdaddr_t        bdaddr;
  37         __u8            pscan_rep_mode;
  38         __u8            pscan_period_mode;
  39         __u8            pscan_mode;
  40         __u8            dev_class[3];
  41         __le16          clock_offset;
  42         __s8            rssi;
  43 };
  44
  45 struct inquiry_entry {
  46         struct inquiry_entry    *next;
  47         __u32                   timestamp;
  48         struct inquiry_data     data;
  49 };
  50
  51 struct inquiry_cache {
  52         spinlock_t              lock;
  53         __u32                   timestamp;
  54         struct inquiry_entry    *list;
  55 };
  56
  57 struct hci_conn_hash {
  58         struct list_head list;
  59         spinlock_t       lock;
  60         unsigned int     acl_num;
  61         unsigned int     sco_num;
  62 };
  63
  64 struct hci_dev {
  65         struct list_head list;
  66         spinlock_t      lock;
  67         atomic_t        refcnt;
  68
  69         char            name[8];
  70         unsigned long   flags;
  71         __u16           id;
  72         __u8            type;
  73         bdaddr_t        bdaddr;
  74         __u8            dev_name[248];
  75         __u8            dev_class[3];
  76         __u8            features[8];
  77         __u8            commands[64];
  78         __u8            hci_ver;
  79         __u16           hci_rev;
  80         __u16           manufacturer;
  81         __u16           voice_setting;
  82
  83         __u16           pkt_type;
  84         __u16           esco_type;
  85         __u16           link_policy;
  86         __u16           link_mode;
  87
  88         __u32           idle_timeout;
  89         __u16           sniff_min_interval;
  90         __u16           sniff_max_interval;
  91
  92         unsigned long   quirks;
  93
  94         atomic_t        cmd_cnt;
  95         unsigned int    acl_cnt;
  96         unsigned int    sco_cnt;
  97
  98         unsigned int    acl_mtu;
  99         unsigned int    sco_mtu;
 100         unsigned int    acl_pkts;
 101         unsigned int    sco_pkts;
 102
 103         unsigned long   cmd_last_tx;
 104         unsigned long   acl_last_tx;
 105         unsigned long   sco_last_tx;
 106
 107         struct tasklet_struct   cmd_task;
 108         struct tasklet_struct   rx_task;
 109         struct tasklet_struct   tx_task;
 110
 111         struct sk_buff_head     rx_q;
 112         struct sk_buff_head     raw_q;
 113         struct sk_buff_head     cmd_q;
 114
 115         struct sk_buff          *sent_cmd;
 116         struct sk_buff          *reassembly[3];
 117
 118         struct semaphore        req_lock;
 119         wait_queue_head_t       req_wait_q;
 120         __u32                   req_status;
 121         __u32                   req_result;
 122
 123         struct inquiry_cache    inq_cache;
 124         struct hci_conn_hash    conn_hash;
 125
 126         struct hci_dev_stats    stat;
 127
 128         struct sk_buff_head     driver_init;
 129
 130         void                    *driver_data;
 131         void                    *core_data;
 132
 133         atomic_t                promisc;
 134
 135         struct device           *parent;
 136         struct device           dev;
 137
 138         struct module           *owner;
 139
 140         int (*open)(struct hci_dev *hdev);
 141         int (*close)(struct hci_dev *hdev);
 142         int (*flush)(struct hci_dev *hdev);
 143         int (*send)(struct sk_buff *skb);
 144         void (*destruct)(struct hci_dev *hdev);
 145         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 146         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 147 };
 148
 149 struct hci_conn {
 150         struct list_head list;
 151
 152         atomic_t         refcnt;
 153         spinlock_t       lock;
 154
 155         bdaddr_t         dst;
 156         __u16            handle;
 157         __u16            state;
 158         __u8             mode;
 159         __u8             type;
 160         __u8             out;
 161         __u8             attempt;
 162         __u8             dev_class[3];
 163         __u8             features[8];
 164         __u16            interval;
 165         __u16            link_policy;
 166         __u32            link_mode;
 167         __u8             power_save;
 168         unsigned long    pend;
 169
 170         unsigned int     sent;
 171
 172         struct sk_buff_head data_q;
 173
 174         struct timer_list disc_timer;
 175         struct timer_list idle_timer;
 176
 177         struct work_struct work;
 178
 179         struct device   dev;
 180
 181         struct hci_dev  *hdev;
 182         void            *l2cap_data;
 183         void            *sco_data;
 184         void            *priv;
 185
 186         struct hci_conn *link;
 187 };
 188
 189 extern struct hci_proto *hci_proto[];
 190 extern struct list_head hci_dev_list;
 191 extern struct list_head hci_cb_list;
 192 extern rwlock_t hci_dev_list_lock;
 193 extern rwlock_t hci_cb_list_lock;
 194
 195 /* ----- Inquiry cache ----- */
 196 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   // 30 seconds
 197 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   // 60 seconds
 198
 199 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 200 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 201 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 202 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 203
 204 static inline void inquiry_cache_init(struct hci_dev *hdev)
 205 {
 206         struct inquiry_cache *c = &hdev->inq_cache;
 207         spin_lock_init(&c->lock);
 208         c->list = NULL;
 209 }
 210
 211 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 212 {
 213         struct inquiry_cache *c = &hdev->inq_cache;
 214         return (c->list == NULL);
 215 }
 216
 217 static inline long inquiry_cache_age(struct hci_dev *hdev)
 218 {
 219         struct inquiry_cache *c = &hdev->inq_cache;
 220         return jiffies - c->timestamp;
 221 }
 222
 223 static inline long inquiry_entry_age(struct inquiry_entry *e)
 224 {
 225         return jiffies - e->timestamp;
 226 }
 227
 228 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 229 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 230
 231 /* ----- HCI Connections ----- */
 232 enum {
 233         HCI_CONN_AUTH_PEND,
 234         HCI_CONN_ENCRYPT_PEND,
 235         HCI_CONN_RSWITCH_PEND,
 236         HCI_CONN_MODE_CHANGE_PEND,
 237 };
 238
 239 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 240 {
 241         struct hci_conn_hash *h = &hdev->conn_hash;
 242         INIT_LIST_HEAD(&h->list);
 243         spin_lock_init(&h->lock);
 244         h->acl_num = 0;
 245         h->sco_num = 0;
 246 }
 247
 248 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 249 {
 250         struct hci_conn_hash *h = &hdev->conn_hash;
 251         list_add(&c->list, &h->list);
 252         if (c->type == ACL_LINK)
 253                 h->acl_num++;
 254         else
 255                 h->sco_num++;
 256 }
 257
 258 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 259 {
 260         struct hci_conn_hash *h = &hdev->conn_hash;
 261         list_del(&c->list);
 262         if (c->type == ACL_LINK)
 263                 h->acl_num--;
 264         else
 265                 h->sco_num--;
 266 }
 267
 268 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 269                                         __u16 handle)
 270 {
 271         struct hci_conn_hash *h = &hdev->conn_hash;
 272         struct list_head *p;
 273         struct hci_conn  *c;
 274
 275         list_for_each(p, &h->list) {
 276                 c = list_entry(p, struct hci_conn, list);
 277                 if (c->handle == handle)
 278                         return c;
 279         }
 280         return NULL;
 281 }
 282
 283 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 284                                         __u8 type, bdaddr_t *ba)
 285 {
 286         struct hci_conn_hash *h = &hdev->conn_hash;
 287         struct list_head *p;
 288         struct hci_conn  *c;
 289
 290         list_for_each(p, &h->list) {
 291                 c = list_entry(p, struct hci_conn, list);
 292                 if (c->type == type && !bacmp(&c->dst, ba))
 293                         return c;
 294         }
 295         return NULL;
 296 }
 297
 298 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 299                                         __u8 type, __u16 state)
 300 {
 301         struct hci_conn_hash *h = &hdev->conn_hash;
 302         struct list_head *p;
 303         struct hci_conn  *c;
 304
 305         list_for_each(p, &h->list) {
 306                 c = list_entry(p, struct hci_conn, list);
 307                 if (c->type == type && c->state == state)
 308                         return c;
 309         }
 310         return NULL;
 311 }
 312
 313 void hci_acl_connect(struct hci_conn *conn);
 314 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 315 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 316 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 317
 318 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 319 int hci_conn_del(struct hci_conn *conn);
 320 void hci_conn_hash_flush(struct hci_dev *hdev);
 321 void hci_conn_check_pending(struct hci_dev *hdev);
 322
 323 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *src);
 324 int hci_conn_auth(struct hci_conn *conn);
 325 int hci_conn_encrypt(struct hci_conn *conn);
 326 int hci_conn_change_link_key(struct hci_conn *conn);
 327 int hci_conn_switch_role(struct hci_conn *conn, uint8_t role);
 328
 329 void hci_conn_enter_active_mode(struct hci_conn *conn);
 330 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 331
 332 static inline void hci_conn_hold(struct hci_conn *conn)
 333 {
 334         atomic_inc(&conn->refcnt);
 335         del_timer(&conn->disc_timer);
 336 }
 337
 338 static inline void hci_conn_put(struct hci_conn *conn)
 339 {
 340         if (atomic_dec_and_test(&conn->refcnt)) {
 341                 unsigned long timeo;
 342                 if (conn->type == ACL_LINK) {
 343                         del_timer(&conn->idle_timer);
 344                         if (conn->state == BT_CONNECTED) {
 345                                 timeo = msecs_to_jiffies(HCI_DISCONN_TIMEOUT);
 346                                 if (!conn->out)
 347                                         timeo *= 2;
 348                         } else
 349                                 timeo = msecs_to_jiffies(10);
 350                 } else
 351                         timeo = msecs_to_jiffies(10);
 352                 mod_timer(&conn->disc_timer, jiffies + timeo);
 353         }
 354 }
 355
 356 /* ----- HCI tasks ----- */
 357 static inline void hci_sched_cmd(struct hci_dev *hdev)
 358 {
 359         tasklet_schedule(&hdev->cmd_task);
 360 }
 361
 362 static inline void hci_sched_rx(struct hci_dev *hdev)
 363 {
 364         tasklet_schedule(&hdev->rx_task);
 365 }
 366
 367 static inline void hci_sched_tx(struct hci_dev *hdev)
 368 {
 369         tasklet_schedule(&hdev->tx_task);
 370 }
 371
 372 /* ----- HCI Devices ----- */
 373 static inline void __hci_dev_put(struct hci_dev *d)
 374 {
 375         if (atomic_dec_and_test(&d->refcnt))
 376                 d->destruct(d);
 377 }
 378
 379 static inline void hci_dev_put(struct hci_dev *d)
 380 {
 381         __hci_dev_put(d);
 382         module_put(d->owner);
 383 }
 384
 385 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 386 {
 387         atomic_inc(&d->refcnt);
 388         return d;
 389 }
 390
 391 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 392 {
 393         if (try_module_get(d->owner))
 394                 return __hci_dev_hold(d);
 395         return NULL;
 396 }
 397
 398 #define hci_dev_lock(d)         spin_lock(&d->lock)
 399 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 400 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 401 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 402
 403 struct hci_dev *hci_dev_get(int index);
 404 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 405
 406 struct hci_dev *hci_alloc_dev(void);
 407 void hci_free_dev(struct hci_dev *hdev);
 408 int hci_register_dev(struct hci_dev *hdev);
 409 int hci_unregister_dev(struct hci_dev *hdev);
 410 int hci_suspend_dev(struct hci_dev *hdev);
 411 int hci_resume_dev(struct hci_dev *hdev);
 412 int hci_dev_open(__u16 dev);
 413 int hci_dev_close(__u16 dev);
 414 int hci_dev_reset(__u16 dev);
 415 int hci_dev_reset_stat(__u16 dev);
 416 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 417 int hci_get_dev_list(void __user *arg);
 418 int hci_get_dev_info(void __user *arg);
 419 int hci_get_conn_list(void __user *arg);
 420 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 421 int hci_inquiry(void __user *arg);
 422
 423 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 424
 425 /* Receive frame from HCI drivers */
 426 static inline int hci_recv_frame(struct sk_buff *skb)
 427 {
 428         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 429         if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 430                         && !test_bit(HCI_INIT, &hdev->flags))) {
 431                 kfree_skb(skb);
 432                 return -ENXIO;
 433         }
 434
 435         /* Incomming skb */
 436         bt_cb(skb)->incoming = 1;
 437
 438         /* Time stamp */
 439         __net_timestamp(skb);
 440
 441         /* Queue frame for rx task */
 442         skb_queue_tail(&hdev->rx_q, skb);
 443         hci_sched_rx(hdev);
 444         return 0;
 445 }
 446
 447 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 448
 449 int hci_register_sysfs(struct hci_dev *hdev);
 450 void hci_unregister_sysfs(struct hci_dev *hdev);
 451 void hci_conn_add_sysfs(struct hci_conn *conn);
 452 void hci_conn_del_sysfs(struct hci_conn *conn);
 453
 454 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 455
 456 /* ----- LMP capabilities ----- */
 457 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 458 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 459 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 460 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 461 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 462
 463 /* ----- HCI protocols ----- */
 464 struct hci_proto {
 465         char            *name;
 466         unsigned int    id;
 467         unsigned long   flags;
 468
 469         void            *priv;
 470
 471         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 472         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 473         int (*disconn_ind)      (struct hci_conn *conn, __u8 reason);
 474         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 475         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 476         int (*auth_cfm)         (struct hci_conn *conn, __u8 status);
 477         int (*encrypt_cfm)      (struct hci_conn *conn, __u8 status, __u8 encrypt);
 478 };
 479
 480 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 481 {
 482         register struct hci_proto *hp;
 483         int mask = 0;
 484
 485         hp = hci_proto[HCI_PROTO_L2CAP];
 486         if (hp && hp->connect_ind)
 487                 mask |= hp->connect_ind(hdev, bdaddr, type);
 488
 489         hp = hci_proto[HCI_PROTO_SCO];
 490         if (hp && hp->connect_ind)
 491                 mask |= hp->connect_ind(hdev, bdaddr, type);
 492
 493         return mask;
 494 }
 495
 496 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 497 {
 498         register struct hci_proto *hp;
 499
 500         hp = hci_proto[HCI_PROTO_L2CAP];
 501         if (hp && hp->connect_cfm)
 502                 hp->connect_cfm(conn, status);
 503
 504         hp = hci_proto[HCI_PROTO_SCO];
 505         if (hp && hp->connect_cfm)
 506                 hp->connect_cfm(conn, status);
 507 }
 508
 509 static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
 510 {
 511         register struct hci_proto *hp;
 512
 513         hp = hci_proto[HCI_PROTO_L2CAP];
 514         if (hp && hp->disconn_ind)
 515                 hp->disconn_ind(conn, reason);
 516
 517         hp = hci_proto[HCI_PROTO_SCO];
 518         if (hp && hp->disconn_ind)
 519                 hp->disconn_ind(conn, reason);
 520 }
 521
 522 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 523 {
 524         register struct hci_proto *hp;
 525
 526         hp = hci_proto[HCI_PROTO_L2CAP];
 527         if (hp && hp->auth_cfm)
 528                 hp->auth_cfm(conn, status);
 529
 530         hp = hci_proto[HCI_PROTO_SCO];
 531         if (hp && hp->auth_cfm)
 532                 hp->auth_cfm(conn, status);
 533 }
 534
 535 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 536 {
 537         register struct hci_proto *hp;
 538
 539         hp = hci_proto[HCI_PROTO_L2CAP];
 540         if (hp && hp->encrypt_cfm)
 541                 hp->encrypt_cfm(conn, status, encrypt);
 542
 543         hp = hci_proto[HCI_PROTO_SCO];
 544         if (hp && hp->encrypt_cfm)
 545                 hp->encrypt_cfm(conn, status, encrypt);
 546 }
 547
 548 int hci_register_proto(struct hci_proto *hproto);
 549 int hci_unregister_proto(struct hci_proto *hproto);
 550
 551 /* ----- HCI callbacks ----- */
 552 struct hci_cb {
 553         struct list_head list;
 554
 555         char *name;
 556
 557         void (*auth_cfm)        (struct hci_conn *conn, __u8 status);
 558         void (*encrypt_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 559         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 560         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 561 };
 562
 563 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 564 {
 565         struct list_head *p;
 566
 567         hci_proto_auth_cfm(conn, status);
 568
 569         read_lock_bh(&hci_cb_list_lock);
 570         list_for_each(p, &hci_cb_list) {
 571                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 572                 if (cb->auth_cfm)
 573                         cb->auth_cfm(conn, status);
 574         }
 575         read_unlock_bh(&hci_cb_list_lock);
 576 }
 577
 578 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 579 {
 580         struct list_head *p;
 581
 582         hci_proto_encrypt_cfm(conn, status, encrypt);
 583
 584         read_lock_bh(&hci_cb_list_lock);
 585         list_for_each(p, &hci_cb_list) {
 586                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 587                 if (cb->encrypt_cfm)
 588                         cb->encrypt_cfm(conn, status, encrypt);
 589         }
 590         read_unlock_bh(&hci_cb_list_lock);
 591 }
 592
 593 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 594 {
 595         struct list_head *p;
 596
 597         read_lock_bh(&hci_cb_list_lock);
 598         list_for_each(p, &hci_cb_list) {
 599                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 600                 if (cb->key_change_cfm)
 601                         cb->key_change_cfm(conn, status);
 602         }
 603         read_unlock_bh(&hci_cb_list_lock);
 604 }
 605
 606 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 607 {
 608         struct list_head *p;
 609
 610         read_lock_bh(&hci_cb_list_lock);
 611         list_for_each(p, &hci_cb_list) {
 612                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 613                 if (cb->role_switch_cfm)
 614                         cb->role_switch_cfm(conn, status, role);
 615         }
 616         read_unlock_bh(&hci_cb_list_lock);
 617 }
 618
 619 int hci_register_cb(struct hci_cb *hcb);
 620 int hci_unregister_cb(struct hci_cb *hcb);
 621
 622 int hci_register_notifier(struct notifier_block *nb);
 623 int hci_unregister_notifier(struct notifier_block *nb);
 624
 625 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 626 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 627 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 628
 629 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 630
 631 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 632
 633 /* ----- HCI Sockets ----- */
 634 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
 635
 636 /* HCI info for socket */
 637 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 638
 639 struct hci_pinfo {
 640         struct bt_sock    bt;
 641         struct hci_dev    *hdev;
 642         struct hci_filter filter;
 643         __u32             cmsg_mask;
 644 };
 645
 646 /* HCI security filter */
 647 #define HCI_SFLT_MAX_OGF  5
 648
 649 struct hci_sec_filter {
 650         __u32 type_mask;
 651         __u32 event_mask[2];
 652         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 653 };
 654
 655 /* ----- HCI requests ----- */
 656 #define HCI_REQ_DONE      0
 657 #define HCI_REQ_PEND      1
 658 #define HCI_REQ_CANCELED  2
 659
 660 #define hci_req_lock(d)         down(&d->req_lock)
 661 #define hci_req_unlock(d)       up(&d->req_lock)
 662
 663 void hci_req_complete(struct hci_dev *hdev, int result);
 664
 665 #endif /* __HCI_CORE_H */