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 __u8 ssp_mode; 44 }; 45 46 struct inquiry_entry { 47 struct inquiry_entry *next; 48 __u32 timestamp; 49 struct inquiry_data data; 50 }; 51 52 struct inquiry_cache { 53 spinlock_t lock; 54 __u32 timestamp; 55 struct inquiry_entry *list; 56 }; 57 58 struct hci_conn_hash { 59 struct list_head list; 60 spinlock_t lock; 61 unsigned int acl_num; 62 unsigned int sco_num; 63 }; 64 65 struct hci_dev { 66 struct list_head list; 67 spinlock_t lock; 68 atomic_t refcnt; 69 70 char name[8]; 71 unsigned long flags; 72 __u16 id; 73 __u8 type; 74 bdaddr_t bdaddr; 75 __u8 dev_name[248]; 76 __u8 dev_class[3]; 77 __u8 features[8]; 78 __u8 commands[64]; 79 __u8 ssp_mode; 80 __u8 hci_ver; 81 __u16 hci_rev; 82 __u16 manufacturer; 83 __u16 voice_setting; 84 85 __u16 pkt_type; 86 __u16 esco_type; 87 __u16 link_policy; 88 __u16 link_mode; 89 90 __u32 idle_timeout; 91 __u16 sniff_min_interval; 92 __u16 sniff_max_interval; 93 94 unsigned long quirks; 95 96 atomic_t cmd_cnt; 97 unsigned int acl_cnt; 98 unsigned int sco_cnt; 99 100 unsigned int acl_mtu; 101 unsigned int sco_mtu; 102 unsigned int acl_pkts; 103 unsigned int sco_pkts; 104 105 unsigned long cmd_last_tx; 106 unsigned long acl_last_tx; 107 unsigned long sco_last_tx; 108 109 struct tasklet_struct cmd_task; 110 struct tasklet_struct rx_task; 111 struct tasklet_struct tx_task; 112 113 struct sk_buff_head rx_q; 114 struct sk_buff_head raw_q; 115 struct sk_buff_head cmd_q; 116 117 struct sk_buff *sent_cmd; 118 struct sk_buff *reassembly[3]; 119 120 struct semaphore req_lock; 121 wait_queue_head_t req_wait_q; 122 __u32 req_status; 123 __u32 req_result; 124 125 struct inquiry_cache inq_cache; 126 struct hci_conn_hash conn_hash; 127 128 struct hci_dev_stats stat; 129 130 struct sk_buff_head driver_init; 131 132 void *driver_data; 133 void *core_data; 134 135 atomic_t promisc; 136 137 struct device *parent; 138 struct device dev; 139 140 struct module *owner; 141 142 int (*open)(struct hci_dev *hdev); 143 int (*close)(struct hci_dev *hdev); 144 int (*flush)(struct hci_dev *hdev); 145 int (*send)(struct sk_buff *skb); 146 void (*destruct)(struct hci_dev *hdev); 147 void (*notify)(struct hci_dev *hdev, unsigned int evt); 148 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 149 }; 150 151 struct hci_conn { 152 struct list_head list; 153 154 atomic_t refcnt; 155 spinlock_t lock; 156 157 bdaddr_t dst; 158 __u16 handle; 159 __u16 state; 160 __u8 mode; 161 __u8 type; 162 __u8 out; 163 __u8 attempt; 164 __u8 dev_class[3]; 165 __u8 features[8]; 166 __u8 ssp_mode; 167 __u16 interval; 168 __u16 pkt_type; 169 __u16 link_policy; 170 __u32 link_mode; 171 __u8 auth_type; 172 __u8 sec_level; 173 __u8 power_save; 174 __u16 disc_timeout; 175 unsigned long pend; 176 177 unsigned int sent; 178 179 struct sk_buff_head data_q; 180 181 struct timer_list disc_timer; 182 struct timer_list idle_timer; 183 184 struct work_struct work_add; 185 struct work_struct work_del; 186 187 struct device dev; 188 189 struct hci_dev *hdev; 190 void *l2cap_data; 191 void *sco_data; 192 void *priv; 193 194 struct hci_conn *link; 195 }; 196 197 extern struct hci_proto *hci_proto[]; 198 extern struct list_head hci_dev_list; 199 extern struct list_head hci_cb_list; 200 extern rwlock_t hci_dev_list_lock; 201 extern rwlock_t hci_cb_list_lock; 202 203 /* ----- Inquiry cache ----- */ 204 #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 205 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 206 207 #define inquiry_cache_lock(c) spin_lock(&c->lock) 208 #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 209 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 210 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 211 212 static inline void inquiry_cache_init(struct hci_dev *hdev) 213 { 214 struct inquiry_cache *c = &hdev->inq_cache; 215 spin_lock_init(&c->lock); 216 c->list = NULL; 217 } 218 219 static inline int inquiry_cache_empty(struct hci_dev *hdev) 220 { 221 struct inquiry_cache *c = &hdev->inq_cache; 222 return (c->list == NULL); 223 } 224 225 static inline long inquiry_cache_age(struct hci_dev *hdev) 226 { 227 struct inquiry_cache *c = &hdev->inq_cache; 228 return jiffies - c->timestamp; 229 } 230 231 static inline long inquiry_entry_age(struct inquiry_entry *e) 232 { 233 return jiffies - e->timestamp; 234 } 235 236 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 237 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 238 239 /* ----- HCI Connections ----- */ 240 enum { 241 HCI_CONN_AUTH_PEND, 242 HCI_CONN_ENCRYPT_PEND, 243 HCI_CONN_RSWITCH_PEND, 244 HCI_CONN_MODE_CHANGE_PEND, 245 }; 246 247 static inline void hci_conn_hash_init(struct hci_dev *hdev) 248 { 249 struct hci_conn_hash *h = &hdev->conn_hash; 250 INIT_LIST_HEAD(&h->list); 251 spin_lock_init(&h->lock); 252 h->acl_num = 0; 253 h->sco_num = 0; 254 } 255 256 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 257 { 258 struct hci_conn_hash *h = &hdev->conn_hash; 259 list_add(&c->list, &h->list); 260 if (c->type == ACL_LINK) 261 h->acl_num++; 262 else 263 h->sco_num++; 264 } 265 266 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 267 { 268 struct hci_conn_hash *h = &hdev->conn_hash; 269 list_del(&c->list); 270 if (c->type == ACL_LINK) 271 h->acl_num--; 272 else 273 h->sco_num--; 274 } 275 276 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 277 __u16 handle) 278 { 279 struct hci_conn_hash *h = &hdev->conn_hash; 280 struct list_head *p; 281 struct hci_conn *c; 282 283 list_for_each(p, &h->list) { 284 c = list_entry(p, struct hci_conn, list); 285 if (c->handle == handle) 286 return c; 287 } 288 return NULL; 289 } 290 291 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 292 __u8 type, bdaddr_t *ba) 293 { 294 struct hci_conn_hash *h = &hdev->conn_hash; 295 struct list_head *p; 296 struct hci_conn *c; 297 298 list_for_each(p, &h->list) { 299 c = list_entry(p, struct hci_conn, list); 300 if (c->type == type && !bacmp(&c->dst, ba)) 301 return c; 302 } 303 return NULL; 304 } 305 306 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 307 __u8 type, __u16 state) 308 { 309 struct hci_conn_hash *h = &hdev->conn_hash; 310 struct list_head *p; 311 struct hci_conn *c; 312 313 list_for_each(p, &h->list) { 314 c = list_entry(p, struct hci_conn, list); 315 if (c->type == type && c->state == state) 316 return c; 317 } 318 return NULL; 319 } 320 321 void hci_acl_connect(struct hci_conn *conn); 322 void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 323 void hci_add_sco(struct hci_conn *conn, __u16 handle); 324 void hci_setup_sync(struct hci_conn *conn, __u16 handle); 325 326 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 327 int hci_conn_del(struct hci_conn *conn); 328 void hci_conn_hash_flush(struct hci_dev *hdev); 329 void hci_conn_check_pending(struct hci_dev *hdev); 330 331 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); 332 int hci_conn_check_link_mode(struct hci_conn *conn); 333 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 334 int hci_conn_change_link_key(struct hci_conn *conn); 335 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 336 337 void hci_conn_enter_active_mode(struct hci_conn *conn); 338 void hci_conn_enter_sniff_mode(struct hci_conn *conn); 339 340 static inline void hci_conn_hold(struct hci_conn *conn) 341 { 342 atomic_inc(&conn->refcnt); 343 del_timer(&conn->disc_timer); 344 } 345 346 static inline void hci_conn_put(struct hci_conn *conn) 347 { 348 if (atomic_dec_and_test(&conn->refcnt)) { 349 unsigned long timeo; 350 if (conn->type == ACL_LINK) { 351 del_timer(&conn->idle_timer); 352 if (conn->state == BT_CONNECTED) { 353 timeo = msecs_to_jiffies(conn->disc_timeout); 354 if (!conn->out) 355 timeo *= 2; 356 } else 357 timeo = msecs_to_jiffies(10); 358 } else 359 timeo = msecs_to_jiffies(10); 360 mod_timer(&conn->disc_timer, jiffies + timeo); 361 } 362 } 363 364 /* ----- HCI tasks ----- */ 365 static inline void hci_sched_cmd(struct hci_dev *hdev) 366 { 367 tasklet_schedule(&hdev->cmd_task); 368 } 369 370 static inline void hci_sched_rx(struct hci_dev *hdev) 371 { 372 tasklet_schedule(&hdev->rx_task); 373 } 374 375 static inline void hci_sched_tx(struct hci_dev *hdev) 376 { 377 tasklet_schedule(&hdev->tx_task); 378 } 379 380 /* ----- HCI Devices ----- */ 381 static inline void __hci_dev_put(struct hci_dev *d) 382 { 383 if (atomic_dec_and_test(&d->refcnt)) 384 d->destruct(d); 385 } 386 387 static inline void hci_dev_put(struct hci_dev *d) 388 { 389 __hci_dev_put(d); 390 module_put(d->owner); 391 } 392 393 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 394 { 395 atomic_inc(&d->refcnt); 396 return d; 397 } 398 399 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 400 { 401 if (try_module_get(d->owner)) 402 return __hci_dev_hold(d); 403 return NULL; 404 } 405 406 #define hci_dev_lock(d) spin_lock(&d->lock) 407 #define hci_dev_unlock(d) spin_unlock(&d->lock) 408 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 409 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 410 411 struct hci_dev *hci_dev_get(int index); 412 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 413 414 struct hci_dev *hci_alloc_dev(void); 415 void hci_free_dev(struct hci_dev *hdev); 416 int hci_register_dev(struct hci_dev *hdev); 417 int hci_unregister_dev(struct hci_dev *hdev); 418 int hci_suspend_dev(struct hci_dev *hdev); 419 int hci_resume_dev(struct hci_dev *hdev); 420 int hci_dev_open(__u16 dev); 421 int hci_dev_close(__u16 dev); 422 int hci_dev_reset(__u16 dev); 423 int hci_dev_reset_stat(__u16 dev); 424 int hci_dev_cmd(unsigned int cmd, void __user *arg); 425 int hci_get_dev_list(void __user *arg); 426 int hci_get_dev_info(void __user *arg); 427 int hci_get_conn_list(void __user *arg); 428 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 429 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 430 int hci_inquiry(void __user *arg); 431 432 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 433 434 /* Receive frame from HCI drivers */ 435 static inline int hci_recv_frame(struct sk_buff *skb) 436 { 437 struct hci_dev *hdev = (struct hci_dev *) skb->dev; 438 if (!hdev || (!test_bit(HCI_UP, &hdev->flags) 439 && !test_bit(HCI_INIT, &hdev->flags))) { 440 kfree_skb(skb); 441 return -ENXIO; 442 } 443 444 /* Incomming skb */ 445 bt_cb(skb)->incoming = 1; 446 447 /* Time stamp */ 448 __net_timestamp(skb); 449 450 /* Queue frame for rx task */ 451 skb_queue_tail(&hdev->rx_q, skb); 452 hci_sched_rx(hdev); 453 return 0; 454 } 455 456 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 457 458 int hci_register_sysfs(struct hci_dev *hdev); 459 void hci_unregister_sysfs(struct hci_dev *hdev); 460 void hci_conn_add_sysfs(struct hci_conn *conn); 461 void hci_conn_del_sysfs(struct hci_conn *conn); 462 463 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 464 465 /* ----- LMP capabilities ----- */ 466 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 467 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 468 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 469 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 470 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 471 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 472 473 /* ----- HCI protocols ----- */ 474 struct hci_proto { 475 char *name; 476 unsigned int id; 477 unsigned long flags; 478 479 void *priv; 480 481 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 482 int (*connect_cfm) (struct hci_conn *conn, __u8 status); 483 int (*disconn_ind) (struct hci_conn *conn); 484 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 485 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 486 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 487 int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 488 }; 489 490 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 491 { 492 register struct hci_proto *hp; 493 int mask = 0; 494 495 hp = hci_proto[HCI_PROTO_L2CAP]; 496 if (hp && hp->connect_ind) 497 mask |= hp->connect_ind(hdev, bdaddr, type); 498 499 hp = hci_proto[HCI_PROTO_SCO]; 500 if (hp && hp->connect_ind) 501 mask |= hp->connect_ind(hdev, bdaddr, type); 502 503 return mask; 504 } 505 506 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 507 { 508 register struct hci_proto *hp; 509 510 hp = hci_proto[HCI_PROTO_L2CAP]; 511 if (hp && hp->connect_cfm) 512 hp->connect_cfm(conn, status); 513 514 hp = hci_proto[HCI_PROTO_SCO]; 515 if (hp && hp->connect_cfm) 516 hp->connect_cfm(conn, status); 517 } 518 519 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 520 { 521 register struct hci_proto *hp; 522 int reason = 0x13; 523 524 hp = hci_proto[HCI_PROTO_L2CAP]; 525 if (hp && hp->disconn_ind) 526 reason = hp->disconn_ind(conn); 527 528 hp = hci_proto[HCI_PROTO_SCO]; 529 if (hp && hp->disconn_ind) 530 reason = hp->disconn_ind(conn); 531 532 return reason; 533 } 534 535 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 536 { 537 register struct hci_proto *hp; 538 539 hp = hci_proto[HCI_PROTO_L2CAP]; 540 if (hp && hp->disconn_cfm) 541 hp->disconn_cfm(conn, reason); 542 543 hp = hci_proto[HCI_PROTO_SCO]; 544 if (hp && hp->disconn_cfm) 545 hp->disconn_cfm(conn, reason); 546 } 547 548 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 549 { 550 register struct hci_proto *hp; 551 __u8 encrypt; 552 553 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 554 return; 555 556 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 557 558 hp = hci_proto[HCI_PROTO_L2CAP]; 559 if (hp && hp->security_cfm) 560 hp->security_cfm(conn, status, encrypt); 561 562 hp = hci_proto[HCI_PROTO_SCO]; 563 if (hp && hp->security_cfm) 564 hp->security_cfm(conn, status, encrypt); 565 } 566 567 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 568 { 569 register struct hci_proto *hp; 570 571 hp = hci_proto[HCI_PROTO_L2CAP]; 572 if (hp && hp->security_cfm) 573 hp->security_cfm(conn, status, encrypt); 574 575 hp = hci_proto[HCI_PROTO_SCO]; 576 if (hp && hp->security_cfm) 577 hp->security_cfm(conn, status, encrypt); 578 } 579 580 int hci_register_proto(struct hci_proto *hproto); 581 int hci_unregister_proto(struct hci_proto *hproto); 582 583 /* ----- HCI callbacks ----- */ 584 struct hci_cb { 585 struct list_head list; 586 587 char *name; 588 589 void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 590 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 591 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 592 }; 593 594 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 595 { 596 struct list_head *p; 597 __u8 encrypt; 598 599 hci_proto_auth_cfm(conn, status); 600 601 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 602 return; 603 604 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 605 606 read_lock_bh(&hci_cb_list_lock); 607 list_for_each(p, &hci_cb_list) { 608 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 609 if (cb->security_cfm) 610 cb->security_cfm(conn, status, encrypt); 611 } 612 read_unlock_bh(&hci_cb_list_lock); 613 } 614 615 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 616 { 617 struct list_head *p; 618 619 if (conn->sec_level == BT_SECURITY_SDP) 620 conn->sec_level = BT_SECURITY_LOW; 621 622 hci_proto_encrypt_cfm(conn, status, encrypt); 623 624 read_lock_bh(&hci_cb_list_lock); 625 list_for_each(p, &hci_cb_list) { 626 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 627 if (cb->security_cfm) 628 cb->security_cfm(conn, status, encrypt); 629 } 630 read_unlock_bh(&hci_cb_list_lock); 631 } 632 633 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 634 { 635 struct list_head *p; 636 637 read_lock_bh(&hci_cb_list_lock); 638 list_for_each(p, &hci_cb_list) { 639 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 640 if (cb->key_change_cfm) 641 cb->key_change_cfm(conn, status); 642 } 643 read_unlock_bh(&hci_cb_list_lock); 644 } 645 646 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 647 { 648 struct list_head *p; 649 650 read_lock_bh(&hci_cb_list_lock); 651 list_for_each(p, &hci_cb_list) { 652 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 653 if (cb->role_switch_cfm) 654 cb->role_switch_cfm(conn, status, role); 655 } 656 read_unlock_bh(&hci_cb_list_lock); 657 } 658 659 int hci_register_cb(struct hci_cb *hcb); 660 int hci_unregister_cb(struct hci_cb *hcb); 661 662 int hci_register_notifier(struct notifier_block *nb); 663 int hci_unregister_notifier(struct notifier_block *nb); 664 665 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 666 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 667 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 668 669 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 670 671 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 672 673 /* ----- HCI Sockets ----- */ 674 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 675 676 /* HCI info for socket */ 677 #define hci_pi(sk) ((struct hci_pinfo *) sk) 678 679 struct hci_pinfo { 680 struct bt_sock bt; 681 struct hci_dev *hdev; 682 struct hci_filter filter; 683 __u32 cmsg_mask; 684 }; 685 686 /* HCI security filter */ 687 #define HCI_SFLT_MAX_OGF 5 688 689 struct hci_sec_filter { 690 __u32 type_mask; 691 __u32 event_mask[2]; 692 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 693 }; 694 695 /* ----- HCI requests ----- */ 696 #define HCI_REQ_DONE 0 697 #define HCI_REQ_PEND 1 698 #define HCI_REQ_CANCELED 2 699 700 #define hci_req_lock(d) down(&d->req_lock) 701 #define hci_req_unlock(d) up(&d->req_lock) 702 703 void hci_req_complete(struct hci_dev *hdev, int result); 704 705 #endif /* __HCI_CORE_H */ 706