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;
231 __u8 pending_sec_level;
244 struct sk_buff_head data_q;
246 struct timer_list disc_timer;
247 struct timer_list idle_timer;
249 struct work_struct work_add;
250 struct work_struct work_del;
255 struct hci_dev *hdev;
260 struct hci_conn *link;
262 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
263 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
264 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
267 extern struct hci_proto *hci_proto[];
268 extern struct list_head hci_dev_list;
269 extern struct list_head hci_cb_list;
270 extern rwlock_t hci_dev_list_lock;
271 extern rwlock_t hci_cb_list_lock;
273 /* ----- Inquiry cache ----- */
274 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
275 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
277 #define inquiry_cache_lock(c) spin_lock(&c->lock)
278 #define inquiry_cache_unlock(c) spin_unlock(&c->lock)
279 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
280 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
282 static inline void inquiry_cache_init(struct hci_dev *hdev)
284 struct inquiry_cache *c = &hdev->inq_cache;
285 spin_lock_init(&c->lock);
289 static inline int inquiry_cache_empty(struct hci_dev *hdev)
291 struct inquiry_cache *c = &hdev->inq_cache;
292 return c->list == NULL;
295 static inline long inquiry_cache_age(struct hci_dev *hdev)
297 struct inquiry_cache *c = &hdev->inq_cache;
298 return jiffies - c->timestamp;
301 static inline long inquiry_entry_age(struct inquiry_entry *e)
303 return jiffies - e->timestamp;
306 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
307 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
309 /* ----- HCI Connections ----- */
312 HCI_CONN_ENCRYPT_PEND,
313 HCI_CONN_RSWITCH_PEND,
314 HCI_CONN_MODE_CHANGE_PEND,
315 HCI_CONN_SCO_SETUP_PEND,
318 static inline void hci_conn_hash_init(struct hci_dev *hdev)
320 struct hci_conn_hash *h = &hdev->conn_hash;
321 INIT_LIST_HEAD(&h->list);
322 spin_lock_init(&h->lock);
327 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
329 struct hci_conn_hash *h = &hdev->conn_hash;
330 list_add(&c->list, &h->list);
345 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
347 struct hci_conn_hash *h = &hdev->conn_hash;
363 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
366 struct hci_conn_hash *h = &hdev->conn_hash;
370 list_for_each(p, &h->list) {
371 c = list_entry(p, struct hci_conn, list);
372 if (c->handle == handle)
378 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
379 __u8 type, bdaddr_t *ba)
381 struct hci_conn_hash *h = &hdev->conn_hash;
385 list_for_each(p, &h->list) {
386 c = list_entry(p, struct hci_conn, list);
387 if (c->type == type && !bacmp(&c->dst, ba))
393 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
394 __u8 type, __u16 state)
396 struct hci_conn_hash *h = &hdev->conn_hash;
400 list_for_each(p, &h->list) {
401 c = list_entry(p, struct hci_conn, list);
402 if (c->type == type && c->state == state)
408 void hci_acl_connect(struct hci_conn *conn);
409 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
410 void hci_add_sco(struct hci_conn *conn, __u16 handle);
411 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
412 void hci_sco_setup(struct hci_conn *conn, __u8 status);
414 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
415 int hci_conn_del(struct hci_conn *conn);
416 void hci_conn_hash_flush(struct hci_dev *hdev);
417 void hci_conn_check_pending(struct hci_dev *hdev);
419 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
420 int hci_conn_check_link_mode(struct hci_conn *conn);
421 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
422 int hci_conn_change_link_key(struct hci_conn *conn);
423 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
425 void hci_conn_enter_active_mode(struct hci_conn *conn);
426 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
428 void hci_conn_hold_device(struct hci_conn *conn);
429 void hci_conn_put_device(struct hci_conn *conn);
431 static inline void hci_conn_hold(struct hci_conn *conn)
433 atomic_inc(&conn->refcnt);
434 del_timer(&conn->disc_timer);
437 static inline void hci_conn_put(struct hci_conn *conn)
439 if (atomic_dec_and_test(&conn->refcnt)) {
441 if (conn->type == ACL_LINK) {
442 del_timer(&conn->idle_timer);
443 if (conn->state == BT_CONNECTED) {
444 timeo = msecs_to_jiffies(conn->disc_timeout);
448 timeo = msecs_to_jiffies(10);
450 timeo = msecs_to_jiffies(10);
451 mod_timer(&conn->disc_timer, jiffies + timeo);
455 /* ----- HCI Devices ----- */
456 static inline void __hci_dev_put(struct hci_dev *d)
458 if (atomic_dec_and_test(&d->refcnt))
462 static inline void hci_dev_put(struct hci_dev *d)
465 module_put(d->owner);
468 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
470 atomic_inc(&d->refcnt);
474 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
476 if (try_module_get(d->owner))
477 return __hci_dev_hold(d);
481 #define hci_dev_lock(d) spin_lock(&d->lock)
482 #define hci_dev_unlock(d) spin_unlock(&d->lock)
483 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
484 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
486 struct hci_dev *hci_dev_get(int index);
487 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
489 struct hci_dev *hci_alloc_dev(void);
490 void hci_free_dev(struct hci_dev *hdev);
491 int hci_register_dev(struct hci_dev *hdev);
492 int hci_unregister_dev(struct hci_dev *hdev);
493 int hci_suspend_dev(struct hci_dev *hdev);
494 int hci_resume_dev(struct hci_dev *hdev);
495 int hci_dev_open(__u16 dev);
496 int hci_dev_close(__u16 dev);
497 int hci_dev_reset(__u16 dev);
498 int hci_dev_reset_stat(__u16 dev);
499 int hci_dev_cmd(unsigned int cmd, void __user *arg);
500 int hci_get_dev_list(void __user *arg);
501 int hci_get_dev_info(void __user *arg);
502 int hci_get_conn_list(void __user *arg);
503 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
504 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
505 int hci_inquiry(void __user *arg);
507 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
508 int hci_blacklist_clear(struct hci_dev *hdev);
510 int hci_uuids_clear(struct hci_dev *hdev);
512 int hci_link_keys_clear(struct hci_dev *hdev);
513 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
514 int hci_add_link_key(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
515 u8 *key, u8 type, u8 pin_len);
516 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
518 int hci_remote_oob_data_clear(struct hci_dev *hdev);
519 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
521 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
523 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
525 void hci_del_off_timer(struct hci_dev *hdev);
527 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
529 int hci_recv_frame(struct sk_buff *skb);
530 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
531 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
533 int hci_register_sysfs(struct hci_dev *hdev);
534 void hci_unregister_sysfs(struct hci_dev *hdev);
535 void hci_conn_init_sysfs(struct hci_conn *conn);
536 void hci_conn_add_sysfs(struct hci_conn *conn);
537 void hci_conn_del_sysfs(struct hci_conn *conn);
539 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
541 /* ----- LMP capabilities ----- */
542 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
543 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
544 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
545 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
546 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
547 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
548 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
549 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
551 /* ----- HCI protocols ----- */
559 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
560 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
561 int (*disconn_ind) (struct hci_conn *conn);
562 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
563 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
564 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
565 int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
568 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
570 register struct hci_proto *hp;
573 hp = hci_proto[HCI_PROTO_L2CAP];
574 if (hp && hp->connect_ind)
575 mask |= hp->connect_ind(hdev, bdaddr, type);
577 hp = hci_proto[HCI_PROTO_SCO];
578 if (hp && hp->connect_ind)
579 mask |= hp->connect_ind(hdev, bdaddr, type);
584 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
586 register struct hci_proto *hp;
588 hp = hci_proto[HCI_PROTO_L2CAP];
589 if (hp && hp->connect_cfm)
590 hp->connect_cfm(conn, status);
592 hp = hci_proto[HCI_PROTO_SCO];
593 if (hp && hp->connect_cfm)
594 hp->connect_cfm(conn, status);
596 if (conn->connect_cfm_cb)
597 conn->connect_cfm_cb(conn, status);
600 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
602 register struct hci_proto *hp;
605 hp = hci_proto[HCI_PROTO_L2CAP];
606 if (hp && hp->disconn_ind)
607 reason = hp->disconn_ind(conn);
609 hp = hci_proto[HCI_PROTO_SCO];
610 if (hp && hp->disconn_ind)
611 reason = hp->disconn_ind(conn);
616 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
618 register struct hci_proto *hp;
620 hp = hci_proto[HCI_PROTO_L2CAP];
621 if (hp && hp->disconn_cfm)
622 hp->disconn_cfm(conn, reason);
624 hp = hci_proto[HCI_PROTO_SCO];
625 if (hp && hp->disconn_cfm)
626 hp->disconn_cfm(conn, reason);
628 if (conn->disconn_cfm_cb)
629 conn->disconn_cfm_cb(conn, reason);
632 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
634 register struct hci_proto *hp;
637 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
640 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
642 hp = hci_proto[HCI_PROTO_L2CAP];
643 if (hp && hp->security_cfm)
644 hp->security_cfm(conn, status, encrypt);
646 hp = hci_proto[HCI_PROTO_SCO];
647 if (hp && hp->security_cfm)
648 hp->security_cfm(conn, status, encrypt);
650 if (conn->security_cfm_cb)
651 conn->security_cfm_cb(conn, status);
654 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
656 register struct hci_proto *hp;
658 hp = hci_proto[HCI_PROTO_L2CAP];
659 if (hp && hp->security_cfm)
660 hp->security_cfm(conn, status, encrypt);
662 hp = hci_proto[HCI_PROTO_SCO];
663 if (hp && hp->security_cfm)
664 hp->security_cfm(conn, status, encrypt);
666 if (conn->security_cfm_cb)
667 conn->security_cfm_cb(conn, status);
670 int hci_register_proto(struct hci_proto *hproto);
671 int hci_unregister_proto(struct hci_proto *hproto);
673 /* ----- HCI callbacks ----- */
675 struct list_head list;
679 void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
680 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
681 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
684 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
689 hci_proto_auth_cfm(conn, status);
691 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
694 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
696 read_lock_bh(&hci_cb_list_lock);
697 list_for_each(p, &hci_cb_list) {
698 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
699 if (cb->security_cfm)
700 cb->security_cfm(conn, status, encrypt);
702 read_unlock_bh(&hci_cb_list_lock);
705 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
709 if (conn->sec_level == BT_SECURITY_SDP)
710 conn->sec_level = BT_SECURITY_LOW;
712 hci_proto_encrypt_cfm(conn, status, encrypt);
714 read_lock_bh(&hci_cb_list_lock);
715 list_for_each(p, &hci_cb_list) {
716 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
717 if (cb->security_cfm)
718 cb->security_cfm(conn, status, encrypt);
720 read_unlock_bh(&hci_cb_list_lock);
723 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
727 read_lock_bh(&hci_cb_list_lock);
728 list_for_each(p, &hci_cb_list) {
729 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
730 if (cb->key_change_cfm)
731 cb->key_change_cfm(conn, status);
733 read_unlock_bh(&hci_cb_list_lock);
736 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
740 read_lock_bh(&hci_cb_list_lock);
741 list_for_each(p, &hci_cb_list) {
742 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
743 if (cb->role_switch_cfm)
744 cb->role_switch_cfm(conn, status, role);
746 read_unlock_bh(&hci_cb_list_lock);
749 int hci_register_cb(struct hci_cb *hcb);
750 int hci_unregister_cb(struct hci_cb *hcb);
752 int hci_register_notifier(struct notifier_block *nb);
753 int hci_unregister_notifier(struct notifier_block *nb);
755 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
756 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
757 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
759 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
761 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
763 /* ----- HCI Sockets ----- */
764 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
765 struct sock *skip_sk);
767 /* Management interface */
768 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
769 int mgmt_index_added(u16 index);
770 int mgmt_index_removed(u16 index);
771 int mgmt_powered(u16 index, u8 powered);
772 int mgmt_discoverable(u16 index, u8 discoverable);
773 int mgmt_connectable(u16 index, u8 connectable);
774 int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type);
775 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
776 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
777 int mgmt_disconnect_failed(u16 index);
778 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
779 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr);
780 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
781 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
782 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value);
783 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
784 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
786 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
787 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
788 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
791 /* HCI info for socket */
792 #define hci_pi(sk) ((struct hci_pinfo *) sk)
796 struct hci_dev *hdev;
797 struct hci_filter filter;
799 unsigned short channel;
802 /* HCI security filter */
803 #define HCI_SFLT_MAX_OGF 5
805 struct hci_sec_filter {
808 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
811 /* ----- HCI requests ----- */
812 #define HCI_REQ_DONE 0
813 #define HCI_REQ_PEND 1
814 #define HCI_REQ_CANCELED 2
816 #define hci_req_lock(d) mutex_lock(&d->req_lock)
817 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
819 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
821 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
822 u16 latency, u16 to_multiplier);
823 #endif /* __HCI_CORE_H */