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 power_save; 173 unsigned long pend; 174 175 unsigned int sent; 176 177 struct sk_buff_head data_q; 178 179 struct timer_list disc_timer; 180 struct timer_list idle_timer; 181 182 struct work_struct work; 183 184 struct device dev; 185 186 struct hci_dev *hdev; 187 void *l2cap_data; 188 void *sco_data; 189 void *priv; 190 191 struct hci_conn *link; 192 }; 193 194 extern struct hci_proto *hci_proto[]; 195 extern struct list_head hci_dev_list; 196 extern struct list_head hci_cb_list; 197 extern rwlock_t hci_dev_list_lock; 198 extern rwlock_t hci_cb_list_lock; 199 200 /* ----- Inquiry cache ----- */ 201 #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 202 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 203 204 #define inquiry_cache_lock(c) spin_lock(&c->lock) 205 #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 206 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 207 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 208 209 static inline void inquiry_cache_init(struct hci_dev *hdev) 210 { 211 struct inquiry_cache *c = &hdev->inq_cache; 212 spin_lock_init(&c->lock); 213 c->list = NULL; 214 } 215 216 static inline int inquiry_cache_empty(struct hci_dev *hdev) 217 { 218 struct inquiry_cache *c = &hdev->inq_cache; 219 return (c->list == NULL); 220 } 221 222 static inline long inquiry_cache_age(struct hci_dev *hdev) 223 { 224 struct inquiry_cache *c = &hdev->inq_cache; 225 return jiffies - c->timestamp; 226 } 227 228 static inline long inquiry_entry_age(struct inquiry_entry *e) 229 { 230 return jiffies - e->timestamp; 231 } 232 233 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 234 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 235 236 /* ----- HCI Connections ----- */ 237 enum { 238 HCI_CONN_AUTH_PEND, 239 HCI_CONN_ENCRYPT_PEND, 240 HCI_CONN_RSWITCH_PEND, 241 HCI_CONN_MODE_CHANGE_PEND, 242 }; 243 244 static inline void hci_conn_hash_init(struct hci_dev *hdev) 245 { 246 struct hci_conn_hash *h = &hdev->conn_hash; 247 INIT_LIST_HEAD(&h->list); 248 spin_lock_init(&h->lock); 249 h->acl_num = 0; 250 h->sco_num = 0; 251 } 252 253 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 254 { 255 struct hci_conn_hash *h = &hdev->conn_hash; 256 list_add(&c->list, &h->list); 257 if (c->type == ACL_LINK) 258 h->acl_num++; 259 else 260 h->sco_num++; 261 } 262 263 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 264 { 265 struct hci_conn_hash *h = &hdev->conn_hash; 266 list_del(&c->list); 267 if (c->type == ACL_LINK) 268 h->acl_num--; 269 else 270 h->sco_num--; 271 } 272 273 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 274 __u16 handle) 275 { 276 struct hci_conn_hash *h = &hdev->conn_hash; 277 struct list_head *p; 278 struct hci_conn *c; 279 280 list_for_each(p, &h->list) { 281 c = list_entry(p, struct hci_conn, list); 282 if (c->handle == handle) 283 return c; 284 } 285 return NULL; 286 } 287 288 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 289 __u8 type, bdaddr_t *ba) 290 { 291 struct hci_conn_hash *h = &hdev->conn_hash; 292 struct list_head *p; 293 struct hci_conn *c; 294 295 list_for_each(p, &h->list) { 296 c = list_entry(p, struct hci_conn, list); 297 if (c->type == type && !bacmp(&c->dst, ba)) 298 return c; 299 } 300 return NULL; 301 } 302 303 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 304 __u8 type, __u16 state) 305 { 306 struct hci_conn_hash *h = &hdev->conn_hash; 307 struct list_head *p; 308 struct hci_conn *c; 309 310 list_for_each(p, &h->list) { 311 c = list_entry(p, struct hci_conn, list); 312 if (c->type == type && c->state == state) 313 return c; 314 } 315 return NULL; 316 } 317 318 void hci_acl_connect(struct hci_conn *conn); 319 void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 320 void hci_add_sco(struct hci_conn *conn, __u16 handle); 321 void hci_setup_sync(struct hci_conn *conn, __u16 handle); 322 323 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 324 int hci_conn_del(struct hci_conn *conn); 325 void hci_conn_hash_flush(struct hci_dev *hdev); 326 void hci_conn_check_pending(struct hci_dev *hdev); 327 328 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 auth_type); 329 int hci_conn_check_link_mode(struct hci_conn *conn); 330 int hci_conn_auth(struct hci_conn *conn); 331 int hci_conn_encrypt(struct hci_conn *conn); 332 int hci_conn_change_link_key(struct hci_conn *conn); 333 int hci_conn_switch_role(struct hci_conn *conn, uint8_t role); 334 335 void hci_conn_enter_active_mode(struct hci_conn *conn); 336 void hci_conn_enter_sniff_mode(struct hci_conn *conn); 337 338 static inline void hci_conn_hold(struct hci_conn *conn) 339 { 340 atomic_inc(&conn->refcnt); 341 del_timer(&conn->disc_timer); 342 } 343 344 static inline void hci_conn_put(struct hci_conn *conn) 345 { 346 if (atomic_dec_and_test(&conn->refcnt)) { 347 unsigned long timeo; 348 if (conn->type == ACL_LINK) { 349 del_timer(&conn->idle_timer); 350 if (conn->state == BT_CONNECTED) { 351 timeo = msecs_to_jiffies(HCI_DISCONN_TIMEOUT); 352 if (!conn->out) 353 timeo *= 5; 354 } else 355 timeo = msecs_to_jiffies(10); 356 } else 357 timeo = msecs_to_jiffies(10); 358 mod_timer(&conn->disc_timer, jiffies + timeo); 359 } 360 } 361 362 /* ----- HCI tasks ----- */ 363 static inline void hci_sched_cmd(struct hci_dev *hdev) 364 { 365 tasklet_schedule(&hdev->cmd_task); 366 } 367 368 static inline void hci_sched_rx(struct hci_dev *hdev) 369 { 370 tasklet_schedule(&hdev->rx_task); 371 } 372 373 static inline void hci_sched_tx(struct hci_dev *hdev) 374 { 375 tasklet_schedule(&hdev->tx_task); 376 } 377 378 /* ----- HCI Devices ----- */ 379 static inline void __hci_dev_put(struct hci_dev *d) 380 { 381 if (atomic_dec_and_test(&d->refcnt)) 382 d->destruct(d); 383 } 384 385 static inline void hci_dev_put(struct hci_dev *d) 386 { 387 __hci_dev_put(d); 388 module_put(d->owner); 389 } 390 391 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 392 { 393 atomic_inc(&d->refcnt); 394 return d; 395 } 396 397 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 398 { 399 if (try_module_get(d->owner)) 400 return __hci_dev_hold(d); 401 return NULL; 402 } 403 404 #define hci_dev_lock(d) spin_lock(&d->lock) 405 #define hci_dev_unlock(d) spin_unlock(&d->lock) 406 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 407 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 408 409 struct hci_dev *hci_dev_get(int index); 410 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 411 412 struct hci_dev *hci_alloc_dev(void); 413 void hci_free_dev(struct hci_dev *hdev); 414 int hci_register_dev(struct hci_dev *hdev); 415 int hci_unregister_dev(struct hci_dev *hdev); 416 int hci_suspend_dev(struct hci_dev *hdev); 417 int hci_resume_dev(struct hci_dev *hdev); 418 int hci_dev_open(__u16 dev); 419 int hci_dev_close(__u16 dev); 420 int hci_dev_reset(__u16 dev); 421 int hci_dev_reset_stat(__u16 dev); 422 int hci_dev_cmd(unsigned int cmd, void __user *arg); 423 int hci_get_dev_list(void __user *arg); 424 int hci_get_dev_info(void __user *arg); 425 int hci_get_conn_list(void __user *arg); 426 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 427 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 428 int hci_inquiry(void __user *arg); 429 430 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 431 432 /* Receive frame from HCI drivers */ 433 static inline int hci_recv_frame(struct sk_buff *skb) 434 { 435 struct hci_dev *hdev = (struct hci_dev *) skb->dev; 436 if (!hdev || (!test_bit(HCI_UP, &hdev->flags) 437 && !test_bit(HCI_INIT, &hdev->flags))) { 438 kfree_skb(skb); 439 return -ENXIO; 440 } 441 442 /* Incomming skb */ 443 bt_cb(skb)->incoming = 1; 444 445 /* Time stamp */ 446 __net_timestamp(skb); 447 448 /* Queue frame for rx task */ 449 skb_queue_tail(&hdev->rx_q, skb); 450 hci_sched_rx(hdev); 451 return 0; 452 } 453 454 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 455 456 int hci_register_sysfs(struct hci_dev *hdev); 457 void hci_unregister_sysfs(struct hci_dev *hdev); 458 void hci_conn_add_sysfs(struct hci_conn *conn); 459 void hci_conn_del_sysfs(struct hci_conn *conn); 460 461 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 462 463 /* ----- LMP capabilities ----- */ 464 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 465 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 466 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 467 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 468 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 469 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 470 471 /* ----- HCI protocols ----- */ 472 struct hci_proto { 473 char *name; 474 unsigned int id; 475 unsigned long flags; 476 477 void *priv; 478 479 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 480 int (*connect_cfm) (struct hci_conn *conn, __u8 status); 481 int (*disconn_ind) (struct hci_conn *conn, __u8 reason); 482 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 483 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 484 int (*auth_cfm) (struct hci_conn *conn, __u8 status); 485 int (*encrypt_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 486 }; 487 488 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 489 { 490 register struct hci_proto *hp; 491 int mask = 0; 492 493 hp = hci_proto[HCI_PROTO_L2CAP]; 494 if (hp && hp->connect_ind) 495 mask |= hp->connect_ind(hdev, bdaddr, type); 496 497 hp = hci_proto[HCI_PROTO_SCO]; 498 if (hp && hp->connect_ind) 499 mask |= hp->connect_ind(hdev, bdaddr, type); 500 501 return mask; 502 } 503 504 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 505 { 506 register struct hci_proto *hp; 507 508 hp = hci_proto[HCI_PROTO_L2CAP]; 509 if (hp && hp->connect_cfm) 510 hp->connect_cfm(conn, status); 511 512 hp = hci_proto[HCI_PROTO_SCO]; 513 if (hp && hp->connect_cfm) 514 hp->connect_cfm(conn, status); 515 } 516 517 static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason) 518 { 519 register struct hci_proto *hp; 520 521 hp = hci_proto[HCI_PROTO_L2CAP]; 522 if (hp && hp->disconn_ind) 523 hp->disconn_ind(conn, reason); 524 525 hp = hci_proto[HCI_PROTO_SCO]; 526 if (hp && hp->disconn_ind) 527 hp->disconn_ind(conn, reason); 528 } 529 530 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 531 { 532 register struct hci_proto *hp; 533 534 hp = hci_proto[HCI_PROTO_L2CAP]; 535 if (hp && hp->auth_cfm) 536 hp->auth_cfm(conn, status); 537 538 hp = hci_proto[HCI_PROTO_SCO]; 539 if (hp && hp->auth_cfm) 540 hp->auth_cfm(conn, status); 541 } 542 543 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 544 { 545 register struct hci_proto *hp; 546 547 hp = hci_proto[HCI_PROTO_L2CAP]; 548 if (hp && hp->encrypt_cfm) 549 hp->encrypt_cfm(conn, status, encrypt); 550 551 hp = hci_proto[HCI_PROTO_SCO]; 552 if (hp && hp->encrypt_cfm) 553 hp->encrypt_cfm(conn, status, encrypt); 554 } 555 556 int hci_register_proto(struct hci_proto *hproto); 557 int hci_unregister_proto(struct hci_proto *hproto); 558 559 /* ----- HCI callbacks ----- */ 560 struct hci_cb { 561 struct list_head list; 562 563 char *name; 564 565 void (*auth_cfm) (struct hci_conn *conn, __u8 status); 566 void (*encrypt_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 567 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 568 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 569 }; 570 571 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 572 { 573 struct list_head *p; 574 575 hci_proto_auth_cfm(conn, status); 576 577 read_lock_bh(&hci_cb_list_lock); 578 list_for_each(p, &hci_cb_list) { 579 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 580 if (cb->auth_cfm) 581 cb->auth_cfm(conn, status); 582 } 583 read_unlock_bh(&hci_cb_list_lock); 584 } 585 586 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 587 { 588 struct list_head *p; 589 590 hci_proto_encrypt_cfm(conn, status, encrypt); 591 592 read_lock_bh(&hci_cb_list_lock); 593 list_for_each(p, &hci_cb_list) { 594 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 595 if (cb->encrypt_cfm) 596 cb->encrypt_cfm(conn, status, encrypt); 597 } 598 read_unlock_bh(&hci_cb_list_lock); 599 } 600 601 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 602 { 603 struct list_head *p; 604 605 read_lock_bh(&hci_cb_list_lock); 606 list_for_each(p, &hci_cb_list) { 607 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 608 if (cb->key_change_cfm) 609 cb->key_change_cfm(conn, status); 610 } 611 read_unlock_bh(&hci_cb_list_lock); 612 } 613 614 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 615 { 616 struct list_head *p; 617 618 read_lock_bh(&hci_cb_list_lock); 619 list_for_each(p, &hci_cb_list) { 620 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 621 if (cb->role_switch_cfm) 622 cb->role_switch_cfm(conn, status, role); 623 } 624 read_unlock_bh(&hci_cb_list_lock); 625 } 626 627 int hci_register_cb(struct hci_cb *hcb); 628 int hci_unregister_cb(struct hci_cb *hcb); 629 630 int hci_register_notifier(struct notifier_block *nb); 631 int hci_unregister_notifier(struct notifier_block *nb); 632 633 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 634 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 635 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 636 637 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 638 639 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 640 641 /* ----- HCI Sockets ----- */ 642 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 643 644 /* HCI info for socket */ 645 #define hci_pi(sk) ((struct hci_pinfo *) sk) 646 647 struct hci_pinfo { 648 struct bt_sock bt; 649 struct hci_dev *hdev; 650 struct hci_filter filter; 651 __u32 cmsg_mask; 652 }; 653 654 /* HCI security filter */ 655 #define HCI_SFLT_MAX_OGF 5 656 657 struct hci_sec_filter { 658 __u32 type_mask; 659 __u32 event_mask[2]; 660 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 661 }; 662 663 /* ----- HCI requests ----- */ 664 #define HCI_REQ_DONE 0 665 #define HCI_REQ_PEND 1 666 #define HCI_REQ_CANCELED 2 667 668 #define hci_req_lock(d) down(&d->req_lock) 669 #define hci_req_unlock(d) up(&d->req_lock) 670 671 void hci_req_complete(struct hci_dev *hdev, int result); 672 673 #endif /* __HCI_CORE_H */ 674