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
;
66 struct list_head list
;
71 struct list_head list
;
77 struct list_head list
;
84 #define NUM_REASSEMBLY 4
86 struct list_head list
;
116 __u16 sniff_min_interval
;
117 __u16 sniff_max_interval
;
119 unsigned long quirks
;
122 unsigned int acl_cnt
;
123 unsigned int sco_cnt
;
125 unsigned int acl_mtu
;
126 unsigned int sco_mtu
;
127 unsigned int acl_pkts
;
128 unsigned int sco_pkts
;
130 unsigned long cmd_last_tx
;
131 unsigned long acl_last_tx
;
132 unsigned long sco_last_tx
;
134 struct workqueue_struct
*workqueue
;
136 struct work_struct power_on
;
137 struct work_struct power_off
;
138 struct timer_list off_timer
;
140 struct tasklet_struct cmd_task
;
141 struct tasklet_struct rx_task
;
142 struct tasklet_struct tx_task
;
144 struct sk_buff_head rx_q
;
145 struct sk_buff_head raw_q
;
146 struct sk_buff_head cmd_q
;
148 struct sk_buff
*sent_cmd
;
149 struct sk_buff
*reassembly
[NUM_REASSEMBLY
];
151 struct mutex req_lock
;
152 wait_queue_head_t req_wait_q
;
158 struct inquiry_cache inq_cache
;
159 struct hci_conn_hash conn_hash
;
160 struct list_head blacklist
;
162 struct list_head uuids
;
164 struct list_head link_keys
;
166 struct hci_dev_stats stat
;
168 struct sk_buff_head driver_init
;
175 struct dentry
*debugfs
;
177 struct device
*parent
;
180 struct rfkill
*rfkill
;
182 struct module
*owner
;
184 int (*open
)(struct hci_dev
*hdev
);
185 int (*close
)(struct hci_dev
*hdev
);
186 int (*flush
)(struct hci_dev
*hdev
);
187 int (*send
)(struct sk_buff
*skb
);
188 void (*destruct
)(struct hci_dev
*hdev
);
189 void (*notify
)(struct hci_dev
*hdev
, unsigned int evt
);
190 int (*ioctl
)(struct hci_dev
*hdev
, unsigned int cmd
, unsigned long arg
);
194 struct list_head list
;
215 __u8 pending_sec_level
;
227 struct sk_buff_head data_q
;
229 struct timer_list disc_timer
;
230 struct timer_list idle_timer
;
232 struct work_struct work_add
;
233 struct work_struct work_del
;
238 struct hci_dev
*hdev
;
243 struct hci_conn
*link
;
246 extern struct hci_proto
*hci_proto
[];
247 extern struct list_head hci_dev_list
;
248 extern struct list_head hci_cb_list
;
249 extern rwlock_t hci_dev_list_lock
;
250 extern rwlock_t hci_cb_list_lock
;
252 /* ----- Inquiry cache ----- */
253 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
254 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
256 #define inquiry_cache_lock(c) spin_lock(&c->lock)
257 #define inquiry_cache_unlock(c) spin_unlock(&c->lock)
258 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
259 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
261 static inline void inquiry_cache_init(struct hci_dev
*hdev
)
263 struct inquiry_cache
*c
= &hdev
->inq_cache
;
264 spin_lock_init(&c
->lock
);
268 static inline int inquiry_cache_empty(struct hci_dev
*hdev
)
270 struct inquiry_cache
*c
= &hdev
->inq_cache
;
271 return c
->list
== NULL
;
274 static inline long inquiry_cache_age(struct hci_dev
*hdev
)
276 struct inquiry_cache
*c
= &hdev
->inq_cache
;
277 return jiffies
- c
->timestamp
;
280 static inline long inquiry_entry_age(struct inquiry_entry
*e
)
282 return jiffies
- e
->timestamp
;
285 struct inquiry_entry
*hci_inquiry_cache_lookup(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
286 void hci_inquiry_cache_update(struct hci_dev
*hdev
, struct inquiry_data
*data
);
288 /* ----- HCI Connections ----- */
291 HCI_CONN_ENCRYPT_PEND
,
292 HCI_CONN_RSWITCH_PEND
,
293 HCI_CONN_MODE_CHANGE_PEND
,
294 HCI_CONN_SCO_SETUP_PEND
,
297 static inline void hci_conn_hash_init(struct hci_dev
*hdev
)
299 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
300 INIT_LIST_HEAD(&h
->list
);
301 spin_lock_init(&h
->lock
);
306 static inline void hci_conn_hash_add(struct hci_dev
*hdev
, struct hci_conn
*c
)
308 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
309 list_add(&c
->list
, &h
->list
);
310 if (c
->type
== ACL_LINK
)
316 static inline void hci_conn_hash_del(struct hci_dev
*hdev
, struct hci_conn
*c
)
318 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
320 if (c
->type
== ACL_LINK
)
326 static inline struct hci_conn
*hci_conn_hash_lookup_handle(struct hci_dev
*hdev
,
329 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
333 list_for_each(p
, &h
->list
) {
334 c
= list_entry(p
, struct hci_conn
, list
);
335 if (c
->handle
== handle
)
341 static inline struct hci_conn
*hci_conn_hash_lookup_ba(struct hci_dev
*hdev
,
342 __u8 type
, bdaddr_t
*ba
)
344 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
348 list_for_each(p
, &h
->list
) {
349 c
= list_entry(p
, struct hci_conn
, list
);
350 if (c
->type
== type
&& !bacmp(&c
->dst
, ba
))
356 static inline struct hci_conn
*hci_conn_hash_lookup_state(struct hci_dev
*hdev
,
357 __u8 type
, __u16 state
)
359 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
363 list_for_each(p
, &h
->list
) {
364 c
= list_entry(p
, struct hci_conn
, list
);
365 if (c
->type
== type
&& c
->state
== state
)
371 void hci_acl_connect(struct hci_conn
*conn
);
372 void hci_acl_disconn(struct hci_conn
*conn
, __u8 reason
);
373 void hci_add_sco(struct hci_conn
*conn
, __u16 handle
);
374 void hci_setup_sync(struct hci_conn
*conn
, __u16 handle
);
375 void hci_sco_setup(struct hci_conn
*conn
, __u8 status
);
377 struct hci_conn
*hci_conn_add(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
);
378 int hci_conn_del(struct hci_conn
*conn
);
379 void hci_conn_hash_flush(struct hci_dev
*hdev
);
380 void hci_conn_check_pending(struct hci_dev
*hdev
);
382 struct hci_conn
*hci_connect(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
, __u8 sec_level
, __u8 auth_type
);
383 int hci_conn_check_link_mode(struct hci_conn
*conn
);
384 int hci_conn_security(struct hci_conn
*conn
, __u8 sec_level
, __u8 auth_type
);
385 int hci_conn_change_link_key(struct hci_conn
*conn
);
386 int hci_conn_switch_role(struct hci_conn
*conn
, __u8 role
);
388 void hci_conn_enter_active_mode(struct hci_conn
*conn
);
389 void hci_conn_enter_sniff_mode(struct hci_conn
*conn
);
391 void hci_conn_hold_device(struct hci_conn
*conn
);
392 void hci_conn_put_device(struct hci_conn
*conn
);
394 static inline void hci_conn_hold(struct hci_conn
*conn
)
396 atomic_inc(&conn
->refcnt
);
397 del_timer(&conn
->disc_timer
);
400 static inline void hci_conn_put(struct hci_conn
*conn
)
402 if (atomic_dec_and_test(&conn
->refcnt
)) {
404 if (conn
->type
== ACL_LINK
) {
405 del_timer(&conn
->idle_timer
);
406 if (conn
->state
== BT_CONNECTED
) {
407 timeo
= msecs_to_jiffies(conn
->disc_timeout
);
411 timeo
= msecs_to_jiffies(10);
413 timeo
= msecs_to_jiffies(10);
414 mod_timer(&conn
->disc_timer
, jiffies
+ timeo
);
418 /* ----- HCI Devices ----- */
419 static inline void __hci_dev_put(struct hci_dev
*d
)
421 if (atomic_dec_and_test(&d
->refcnt
))
425 static inline void hci_dev_put(struct hci_dev
*d
)
428 module_put(d
->owner
);
431 static inline struct hci_dev
*__hci_dev_hold(struct hci_dev
*d
)
433 atomic_inc(&d
->refcnt
);
437 static inline struct hci_dev
*hci_dev_hold(struct hci_dev
*d
)
439 if (try_module_get(d
->owner
))
440 return __hci_dev_hold(d
);
444 #define hci_dev_lock(d) spin_lock(&d->lock)
445 #define hci_dev_unlock(d) spin_unlock(&d->lock)
446 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
447 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
449 struct hci_dev
*hci_dev_get(int index
);
450 struct hci_dev
*hci_get_route(bdaddr_t
*src
, bdaddr_t
*dst
);
452 struct hci_dev
*hci_alloc_dev(void);
453 void hci_free_dev(struct hci_dev
*hdev
);
454 int hci_register_dev(struct hci_dev
*hdev
);
455 int hci_unregister_dev(struct hci_dev
*hdev
);
456 int hci_suspend_dev(struct hci_dev
*hdev
);
457 int hci_resume_dev(struct hci_dev
*hdev
);
458 int hci_dev_open(__u16 dev
);
459 int hci_dev_close(__u16 dev
);
460 int hci_dev_reset(__u16 dev
);
461 int hci_dev_reset_stat(__u16 dev
);
462 int hci_dev_cmd(unsigned int cmd
, void __user
*arg
);
463 int hci_get_dev_list(void __user
*arg
);
464 int hci_get_dev_info(void __user
*arg
);
465 int hci_get_conn_list(void __user
*arg
);
466 int hci_get_conn_info(struct hci_dev
*hdev
, void __user
*arg
);
467 int hci_get_auth_info(struct hci_dev
*hdev
, void __user
*arg
);
468 int hci_inquiry(void __user
*arg
);
470 struct bdaddr_list
*hci_blacklist_lookup(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
471 int hci_blacklist_clear(struct hci_dev
*hdev
);
473 int hci_uuids_clear(struct hci_dev
*hdev
);
475 int hci_link_keys_clear(struct hci_dev
*hdev
);
476 struct link_key
*hci_find_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
477 int hci_add_link_key(struct hci_dev
*hdev
, int new_key
, bdaddr_t
*bdaddr
,
478 u8
*key
, u8 type
, u8 pin_len
);
479 int hci_remove_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
481 void hci_del_off_timer(struct hci_dev
*hdev
);
483 void hci_event_packet(struct hci_dev
*hdev
, struct sk_buff
*skb
);
485 int hci_recv_frame(struct sk_buff
*skb
);
486 int hci_recv_fragment(struct hci_dev
*hdev
, int type
, void *data
, int count
);
487 int hci_recv_stream_fragment(struct hci_dev
*hdev
, void *data
, int count
);
489 int hci_register_sysfs(struct hci_dev
*hdev
);
490 void hci_unregister_sysfs(struct hci_dev
*hdev
);
491 void hci_conn_init_sysfs(struct hci_conn
*conn
);
492 void hci_conn_add_sysfs(struct hci_conn
*conn
);
493 void hci_conn_del_sysfs(struct hci_conn
*conn
);
495 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
497 /* ----- LMP capabilities ----- */
498 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
499 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
500 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
501 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
502 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
503 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
504 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
506 /* ----- HCI protocols ----- */
514 int (*connect_ind
) (struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, __u8 type
);
515 int (*connect_cfm
) (struct hci_conn
*conn
, __u8 status
);
516 int (*disconn_ind
) (struct hci_conn
*conn
);
517 int (*disconn_cfm
) (struct hci_conn
*conn
, __u8 reason
);
518 int (*recv_acldata
) (struct hci_conn
*conn
, struct sk_buff
*skb
, __u16 flags
);
519 int (*recv_scodata
) (struct hci_conn
*conn
, struct sk_buff
*skb
);
520 int (*security_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 encrypt
);
523 static inline int hci_proto_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, __u8 type
)
525 register struct hci_proto
*hp
;
528 hp
= hci_proto
[HCI_PROTO_L2CAP
];
529 if (hp
&& hp
->connect_ind
)
530 mask
|= hp
->connect_ind(hdev
, bdaddr
, type
);
532 hp
= hci_proto
[HCI_PROTO_SCO
];
533 if (hp
&& hp
->connect_ind
)
534 mask
|= hp
->connect_ind(hdev
, bdaddr
, type
);
539 static inline void hci_proto_connect_cfm(struct hci_conn
*conn
, __u8 status
)
541 register struct hci_proto
*hp
;
543 hp
= hci_proto
[HCI_PROTO_L2CAP
];
544 if (hp
&& hp
->connect_cfm
)
545 hp
->connect_cfm(conn
, status
);
547 hp
= hci_proto
[HCI_PROTO_SCO
];
548 if (hp
&& hp
->connect_cfm
)
549 hp
->connect_cfm(conn
, status
);
552 static inline int hci_proto_disconn_ind(struct hci_conn
*conn
)
554 register struct hci_proto
*hp
;
557 hp
= hci_proto
[HCI_PROTO_L2CAP
];
558 if (hp
&& hp
->disconn_ind
)
559 reason
= hp
->disconn_ind(conn
);
561 hp
= hci_proto
[HCI_PROTO_SCO
];
562 if (hp
&& hp
->disconn_ind
)
563 reason
= hp
->disconn_ind(conn
);
568 static inline void hci_proto_disconn_cfm(struct hci_conn
*conn
, __u8 reason
)
570 register struct hci_proto
*hp
;
572 hp
= hci_proto
[HCI_PROTO_L2CAP
];
573 if (hp
&& hp
->disconn_cfm
)
574 hp
->disconn_cfm(conn
, reason
);
576 hp
= hci_proto
[HCI_PROTO_SCO
];
577 if (hp
&& hp
->disconn_cfm
)
578 hp
->disconn_cfm(conn
, reason
);
581 static inline void hci_proto_auth_cfm(struct hci_conn
*conn
, __u8 status
)
583 register struct hci_proto
*hp
;
586 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->pend
))
589 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
591 hp
= hci_proto
[HCI_PROTO_L2CAP
];
592 if (hp
&& hp
->security_cfm
)
593 hp
->security_cfm(conn
, status
, encrypt
);
595 hp
= hci_proto
[HCI_PROTO_SCO
];
596 if (hp
&& hp
->security_cfm
)
597 hp
->security_cfm(conn
, status
, encrypt
);
600 static inline void hci_proto_encrypt_cfm(struct hci_conn
*conn
, __u8 status
, __u8 encrypt
)
602 register struct hci_proto
*hp
;
604 hp
= hci_proto
[HCI_PROTO_L2CAP
];
605 if (hp
&& hp
->security_cfm
)
606 hp
->security_cfm(conn
, status
, encrypt
);
608 hp
= hci_proto
[HCI_PROTO_SCO
];
609 if (hp
&& hp
->security_cfm
)
610 hp
->security_cfm(conn
, status
, encrypt
);
613 int hci_register_proto(struct hci_proto
*hproto
);
614 int hci_unregister_proto(struct hci_proto
*hproto
);
616 /* ----- HCI callbacks ----- */
618 struct list_head list
;
622 void (*security_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 encrypt
);
623 void (*key_change_cfm
) (struct hci_conn
*conn
, __u8 status
);
624 void (*role_switch_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 role
);
627 static inline void hci_auth_cfm(struct hci_conn
*conn
, __u8 status
)
632 hci_proto_auth_cfm(conn
, status
);
634 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->pend
))
637 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
639 read_lock_bh(&hci_cb_list_lock
);
640 list_for_each(p
, &hci_cb_list
) {
641 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
642 if (cb
->security_cfm
)
643 cb
->security_cfm(conn
, status
, encrypt
);
645 read_unlock_bh(&hci_cb_list_lock
);
648 static inline void hci_encrypt_cfm(struct hci_conn
*conn
, __u8 status
, __u8 encrypt
)
652 if (conn
->sec_level
== BT_SECURITY_SDP
)
653 conn
->sec_level
= BT_SECURITY_LOW
;
655 hci_proto_encrypt_cfm(conn
, status
, encrypt
);
657 read_lock_bh(&hci_cb_list_lock
);
658 list_for_each(p
, &hci_cb_list
) {
659 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
660 if (cb
->security_cfm
)
661 cb
->security_cfm(conn
, status
, encrypt
);
663 read_unlock_bh(&hci_cb_list_lock
);
666 static inline void hci_key_change_cfm(struct hci_conn
*conn
, __u8 status
)
670 read_lock_bh(&hci_cb_list_lock
);
671 list_for_each(p
, &hci_cb_list
) {
672 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
673 if (cb
->key_change_cfm
)
674 cb
->key_change_cfm(conn
, status
);
676 read_unlock_bh(&hci_cb_list_lock
);
679 static inline void hci_role_switch_cfm(struct hci_conn
*conn
, __u8 status
, __u8 role
)
683 read_lock_bh(&hci_cb_list_lock
);
684 list_for_each(p
, &hci_cb_list
) {
685 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
686 if (cb
->role_switch_cfm
)
687 cb
->role_switch_cfm(conn
, status
, role
);
689 read_unlock_bh(&hci_cb_list_lock
);
692 int hci_register_cb(struct hci_cb
*hcb
);
693 int hci_unregister_cb(struct hci_cb
*hcb
);
695 int hci_register_notifier(struct notifier_block
*nb
);
696 int hci_unregister_notifier(struct notifier_block
*nb
);
698 int hci_send_cmd(struct hci_dev
*hdev
, __u16 opcode
, __u32 plen
, void *param
);
699 void hci_send_acl(struct hci_conn
*conn
, struct sk_buff
*skb
, __u16 flags
);
700 void hci_send_sco(struct hci_conn
*conn
, struct sk_buff
*skb
);
702 void *hci_sent_cmd_data(struct hci_dev
*hdev
, __u16 opcode
);
704 void hci_si_event(struct hci_dev
*hdev
, int type
, int dlen
, void *data
);
706 /* ----- HCI Sockets ----- */
707 void hci_send_to_sock(struct hci_dev
*hdev
, struct sk_buff
*skb
,
708 struct sock
*skip_sk
);
710 /* Management interface */
711 int mgmt_control(struct sock
*sk
, struct msghdr
*msg
, size_t len
);
712 int mgmt_index_added(u16 index
);
713 int mgmt_index_removed(u16 index
);
714 int mgmt_powered(u16 index
, u8 powered
);
715 int mgmt_discoverable(u16 index
, u8 discoverable
);
716 int mgmt_connectable(u16 index
, u8 connectable
);
717 int mgmt_new_key(u16 index
, struct link_key
*key
, u8 old_key_type
);
718 int mgmt_connected(u16 index
, bdaddr_t
*bdaddr
);
719 int mgmt_disconnected(u16 index
, bdaddr_t
*bdaddr
);
720 int mgmt_disconnect_failed(u16 index
);
721 int mgmt_connect_failed(u16 index
, bdaddr_t
*bdaddr
, u8 status
);
722 int mgmt_pin_code_request(u16 index
, bdaddr_t
*bdaddr
);
723 int mgmt_pin_code_reply_complete(u16 index
, bdaddr_t
*bdaddr
, u8 status
);
724 int mgmt_pin_code_neg_reply_complete(u16 index
, bdaddr_t
*bdaddr
, u8 status
);
726 /* HCI info for socket */
727 #define hci_pi(sk) ((struct hci_pinfo *) sk)
731 struct hci_dev
*hdev
;
732 struct hci_filter filter
;
734 unsigned short channel
;
737 /* HCI security filter */
738 #define HCI_SFLT_MAX_OGF 5
740 struct hci_sec_filter
{
743 __u32 ocf_mask
[HCI_SFLT_MAX_OGF
+ 1][4];
746 /* ----- HCI requests ----- */
747 #define HCI_REQ_DONE 0
748 #define HCI_REQ_PEND 1
749 #define HCI_REQ_CANCELED 2
751 #define hci_req_lock(d) mutex_lock(&d->req_lock)
752 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
754 void hci_req_complete(struct hci_dev
*hdev
, __u16 cmd
, int result
);
756 #endif /* __HCI_CORE_H */