2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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;
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.
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.
28 #include <net/bluetooth/hci.h>
30 /* HCI upper protocols */
31 #define HCI_PROTO_L2CAP 0
32 #define HCI_PROTO_SCO 1
34 /* HCI Core structures */
38 __u8 pscan_period_mode;
46 struct inquiry_entry {
47 struct inquiry_entry *next;
49 struct inquiry_data data;
52 struct inquiry_cache {
55 struct inquiry_entry *list;
58 struct hci_conn_hash {
59 struct list_head list;
67 struct list_head list;
72 struct list_head list;
78 struct list_head list;
86 struct list_head list;
92 #define NUM_REASSEMBLY 4
94 struct list_head list;
104 __u8 dev_name[HCI_MAX_NAME_LENGTH];
105 __u8 eir[HCI_MAX_EIR_LENGTH];
126 __u16 sniff_min_interval;
127 __u16 sniff_max_interval;
129 unsigned long quirks;
132 unsigned int acl_cnt;
133 unsigned int sco_cnt;
136 unsigned int acl_mtu;
137 unsigned int sco_mtu;
139 unsigned int acl_pkts;
140 unsigned int sco_pkts;
141 unsigned int le_pkts;
143 unsigned long acl_last_tx;
144 unsigned long sco_last_tx;
145 unsigned long le_last_tx;
147 struct workqueue_struct *workqueue;
149 struct work_struct power_on;
150 struct work_struct power_off;
151 struct timer_list off_timer;
153 struct timer_list cmd_timer;
154 struct tasklet_struct cmd_task;
155 struct tasklet_struct rx_task;
156 struct tasklet_struct tx_task;
158 struct sk_buff_head rx_q;
159 struct sk_buff_head raw_q;
160 struct sk_buff_head cmd_q;
162 struct sk_buff *sent_cmd;
163 struct sk_buff *reassembly[NUM_REASSEMBLY];
165 struct mutex req_lock;
166 wait_queue_head_t req_wait_q;
172 struct inquiry_cache inq_cache;
173 struct hci_conn_hash conn_hash;
174 struct list_head blacklist;
176 struct list_head uuids;
178 struct list_head link_keys;
180 struct list_head remote_oob_data;
182 struct hci_dev_stats stat;
184 struct sk_buff_head driver_init;
191 struct dentry *debugfs;
193 struct device *parent;
196 struct rfkill *rfkill;
198 struct module *owner;
200 int (*open)(struct hci_dev *hdev);
201 int (*close)(struct hci_dev *hdev);
202 int (*flush)(struct hci_dev *hdev);
203 int (*send)(struct sk_buff *skb);
204 void (*destruct)(struct hci_dev *hdev);
205 void (*notify)(struct hci_dev *hdev, unsigned int evt);
206 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
210 struct list_head list;
232 __u8 pending_sec_level;
245 struct sk_buff_head data_q;
247 struct timer_list disc_timer;
248 struct timer_list idle_timer;
250 struct work_struct work_add;
251 struct work_struct work_del;
256 struct hci_dev *hdev;
261 struct hci_conn *link;
263 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
264 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
265 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
268 extern struct hci_proto *hci_proto[];
269 extern struct list_head hci_dev_list;
270 extern struct list_head hci_cb_list;
271 extern rwlock_t hci_dev_list_lock;
272 extern rwlock_t hci_cb_list_lock;
274 /* ----- Inquiry cache ----- */
275 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
276 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
278 #define inquiry_cache_lock(c) spin_lock(&c->lock)
279 #define inquiry_cache_unlock(c) spin_unlock(&c->lock)
280 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
281 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
283 static inline void inquiry_cache_init(struct hci_dev *hdev)
285 struct inquiry_cache *c = &hdev->inq_cache;
286 spin_lock_init(&c->lock);
290 static inline int inquiry_cache_empty(struct hci_dev *hdev)
292 struct inquiry_cache *c = &hdev->inq_cache;
293 return c->list == NULL;
296 static inline long inquiry_cache_age(struct hci_dev *hdev)
298 struct inquiry_cache *c = &hdev->inq_cache;
299 return jiffies - c->timestamp;
302 static inline long inquiry_entry_age(struct inquiry_entry *e)
304 return jiffies - e->timestamp;
307 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
308 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
310 /* ----- HCI Connections ----- */
313 HCI_CONN_ENCRYPT_PEND,
314 HCI_CONN_RSWITCH_PEND,
315 HCI_CONN_MODE_CHANGE_PEND,
316 HCI_CONN_SCO_SETUP_PEND,
319 static inline void hci_conn_hash_init(struct hci_dev *hdev)
321 struct hci_conn_hash *h = &hdev->conn_hash;
322 INIT_LIST_HEAD(&h->list);
323 spin_lock_init(&h->lock);
328 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
330 struct hci_conn_hash *h = &hdev->conn_hash;
331 list_add(&c->list, &h->list);
346 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
348 struct hci_conn_hash *h = &hdev->conn_hash;
364 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
367 struct hci_conn_hash *h = &hdev->conn_hash;
371 list_for_each(p, &h->list) {
372 c = list_entry(p, struct hci_conn, list);
373 if (c->handle == handle)
379 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
380 __u8 type, bdaddr_t *ba)
382 struct hci_conn_hash *h = &hdev->conn_hash;
386 list_for_each(p, &h->list) {
387 c = list_entry(p, struct hci_conn, list);
388 if (c->type == type && !bacmp(&c->dst, ba))
394 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
395 __u8 type, __u16 state)
397 struct hci_conn_hash *h = &hdev->conn_hash;
401 list_for_each(p, &h->list) {
402 c = list_entry(p, struct hci_conn, list);
403 if (c->type == type && c->state == state)
409 void hci_acl_connect(struct hci_conn *conn);
410 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
411 void hci_add_sco(struct hci_conn *conn, __u16 handle);
412 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
413 void hci_sco_setup(struct hci_conn *conn, __u8 status);
415 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
416 int hci_conn_del(struct hci_conn *conn);
417 void hci_conn_hash_flush(struct hci_dev *hdev);
418 void hci_conn_check_pending(struct hci_dev *hdev);
420 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
421 int hci_conn_check_link_mode(struct hci_conn *conn);
422 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
423 int hci_conn_change_link_key(struct hci_conn *conn);
424 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
426 void hci_conn_enter_active_mode(struct hci_conn *conn);
427 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
429 void hci_conn_hold_device(struct hci_conn *conn);
430 void hci_conn_put_device(struct hci_conn *conn);
432 static inline void hci_conn_hold(struct hci_conn *conn)
434 atomic_inc(&conn->refcnt);
435 del_timer(&conn->disc_timer);
438 static inline void hci_conn_put(struct hci_conn *conn)
440 if (atomic_dec_and_test(&conn->refcnt)) {
442 if (conn->type == ACL_LINK) {
443 del_timer(&conn->idle_timer);
444 if (conn->state == BT_CONNECTED) {
445 timeo = msecs_to_jiffies(conn->disc_timeout);
449 timeo = msecs_to_jiffies(10);
451 timeo = msecs_to_jiffies(10);
452 mod_timer(&conn->disc_timer, jiffies + timeo);
456 /* ----- HCI Devices ----- */
457 static inline void __hci_dev_put(struct hci_dev *d)
459 if (atomic_dec_and_test(&d->refcnt))
463 static inline void hci_dev_put(struct hci_dev *d)
466 module_put(d->owner);
469 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
471 atomic_inc(&d->refcnt);
475 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
477 if (try_module_get(d->owner))
478 return __hci_dev_hold(d);
482 #define hci_dev_lock(d) spin_lock(&d->lock)
483 #define hci_dev_unlock(d) spin_unlock(&d->lock)
484 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
485 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
487 struct hci_dev *hci_dev_get(int index);
488 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
490 struct hci_dev *hci_alloc_dev(void);
491 void hci_free_dev(struct hci_dev *hdev);
492 int hci_register_dev(struct hci_dev *hdev);
493 int hci_unregister_dev(struct hci_dev *hdev);
494 int hci_suspend_dev(struct hci_dev *hdev);
495 int hci_resume_dev(struct hci_dev *hdev);
496 int hci_dev_open(__u16 dev);
497 int hci_dev_close(__u16 dev);
498 int hci_dev_reset(__u16 dev);
499 int hci_dev_reset_stat(__u16 dev);
500 int hci_dev_cmd(unsigned int cmd, void __user *arg);
501 int hci_get_dev_list(void __user *arg);
502 int hci_get_dev_info(void __user *arg);
503 int hci_get_conn_list(void __user *arg);
504 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
505 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
506 int hci_inquiry(void __user *arg);
508 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
509 int hci_blacklist_clear(struct hci_dev *hdev);
511 int hci_uuids_clear(struct hci_dev *hdev);
513 int hci_link_keys_clear(struct hci_dev *hdev);
514 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
515 int hci_add_link_key(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
516 u8 *key, u8 type, u8 pin_len);
517 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
519 int hci_remote_oob_data_clear(struct hci_dev *hdev);
520 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
522 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
524 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
526 void hci_del_off_timer(struct hci_dev *hdev);
528 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
530 int hci_recv_frame(struct sk_buff *skb);
531 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
532 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
534 int hci_register_sysfs(struct hci_dev *hdev);
535 void hci_unregister_sysfs(struct hci_dev *hdev);
536 void hci_conn_init_sysfs(struct hci_conn *conn);
537 void hci_conn_add_sysfs(struct hci_conn *conn);
538 void hci_conn_del_sysfs(struct hci_conn *conn);
540 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
542 /* ----- LMP capabilities ----- */
543 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
544 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
545 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
546 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
547 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
548 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
549 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
550 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
552 /* ----- HCI protocols ----- */
560 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
561 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
562 int (*disconn_ind) (struct hci_conn *conn);
563 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
564 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
565 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
566 int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
569 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
571 register struct hci_proto *hp;
574 hp = hci_proto[HCI_PROTO_L2CAP];
575 if (hp && hp->connect_ind)
576 mask |= hp->connect_ind(hdev, bdaddr, type);
578 hp = hci_proto[HCI_PROTO_SCO];
579 if (hp && hp->connect_ind)
580 mask |= hp->connect_ind(hdev, bdaddr, type);
585 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
587 register struct hci_proto *hp;
589 hp = hci_proto[HCI_PROTO_L2CAP];
590 if (hp && hp->connect_cfm)
591 hp->connect_cfm(conn, status);
593 hp = hci_proto[HCI_PROTO_SCO];
594 if (hp && hp->connect_cfm)
595 hp->connect_cfm(conn, status);
597 if (conn->connect_cfm_cb)
598 conn->connect_cfm_cb(conn, status);
601 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
603 register struct hci_proto *hp;
606 hp = hci_proto[HCI_PROTO_L2CAP];
607 if (hp && hp->disconn_ind)
608 reason = hp->disconn_ind(conn);
610 hp = hci_proto[HCI_PROTO_SCO];
611 if (hp && hp->disconn_ind)
612 reason = hp->disconn_ind(conn);
617 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
619 register struct hci_proto *hp;
621 hp = hci_proto[HCI_PROTO_L2CAP];
622 if (hp && hp->disconn_cfm)
623 hp->disconn_cfm(conn, reason);
625 hp = hci_proto[HCI_PROTO_SCO];
626 if (hp && hp->disconn_cfm)
627 hp->disconn_cfm(conn, reason);
629 if (conn->disconn_cfm_cb)
630 conn->disconn_cfm_cb(conn, reason);
633 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
635 register struct hci_proto *hp;
638 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
641 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
643 hp = hci_proto[HCI_PROTO_L2CAP];
644 if (hp && hp->security_cfm)
645 hp->security_cfm(conn, status, encrypt);
647 hp = hci_proto[HCI_PROTO_SCO];
648 if (hp && hp->security_cfm)
649 hp->security_cfm(conn, status, encrypt);
651 if (conn->security_cfm_cb)
652 conn->security_cfm_cb(conn, status);
655 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
657 register struct hci_proto *hp;
659 hp = hci_proto[HCI_PROTO_L2CAP];
660 if (hp && hp->security_cfm)
661 hp->security_cfm(conn, status, encrypt);
663 hp = hci_proto[HCI_PROTO_SCO];
664 if (hp && hp->security_cfm)
665 hp->security_cfm(conn, status, encrypt);
667 if (conn->security_cfm_cb)
668 conn->security_cfm_cb(conn, status);
671 int hci_register_proto(struct hci_proto *hproto);
672 int hci_unregister_proto(struct hci_proto *hproto);
674 /* ----- HCI callbacks ----- */
676 struct list_head list;
680 void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
681 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
682 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
685 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
690 hci_proto_auth_cfm(conn, status);
692 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
695 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
697 read_lock_bh(&hci_cb_list_lock);
698 list_for_each(p, &hci_cb_list) {
699 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
700 if (cb->security_cfm)
701 cb->security_cfm(conn, status, encrypt);
703 read_unlock_bh(&hci_cb_list_lock);
706 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
710 if (conn->sec_level == BT_SECURITY_SDP)
711 conn->sec_level = BT_SECURITY_LOW;
713 hci_proto_encrypt_cfm(conn, status, encrypt);
715 read_lock_bh(&hci_cb_list_lock);
716 list_for_each(p, &hci_cb_list) {
717 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
718 if (cb->security_cfm)
719 cb->security_cfm(conn, status, encrypt);
721 read_unlock_bh(&hci_cb_list_lock);
724 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
728 read_lock_bh(&hci_cb_list_lock);
729 list_for_each(p, &hci_cb_list) {
730 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
731 if (cb->key_change_cfm)
732 cb->key_change_cfm(conn, status);
734 read_unlock_bh(&hci_cb_list_lock);
737 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
741 read_lock_bh(&hci_cb_list_lock);
742 list_for_each(p, &hci_cb_list) {
743 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
744 if (cb->role_switch_cfm)
745 cb->role_switch_cfm(conn, status, role);
747 read_unlock_bh(&hci_cb_list_lock);
750 int hci_register_cb(struct hci_cb *hcb);
751 int hci_unregister_cb(struct hci_cb *hcb);
753 int hci_register_notifier(struct notifier_block *nb);
754 int hci_unregister_notifier(struct notifier_block *nb);
756 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
757 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
758 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
760 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
762 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
764 /* ----- HCI Sockets ----- */
765 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
766 struct sock *skip_sk);
768 /* Management interface */
769 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
770 int mgmt_index_added(u16 index);
771 int mgmt_index_removed(u16 index);
772 int mgmt_powered(u16 index, u8 powered);
773 int mgmt_discoverable(u16 index, u8 discoverable);
774 int mgmt_connectable(u16 index, u8 connectable);
775 int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type);
776 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
777 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
778 int mgmt_disconnect_failed(u16 index);
779 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
780 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
781 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
782 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
783 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value);
784 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
785 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
787 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
788 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
789 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
791 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
793 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
794 int mgmt_discovering(u16 index, u8 discovering);
796 /* HCI info for socket */
797 #define hci_pi(sk) ((struct hci_pinfo *) sk)
801 struct hci_dev *hdev;
802 struct hci_filter filter;
804 unsigned short channel;
807 /* HCI security filter */
808 #define HCI_SFLT_MAX_OGF 5
810 struct hci_sec_filter {
813 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
816 /* ----- HCI requests ----- */
817 #define HCI_REQ_DONE 0
818 #define HCI_REQ_PEND 1
819 #define HCI_REQ_CANCELED 2
821 #define hci_req_lock(d) mutex_lock(&d->req_lock)
822 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
824 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
826 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
827 u16 latency, u16 to_multiplier);
828 #endif /* __HCI_CORE_H */