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Bluetooth: Add HCI Read Flow Control Mode function
[mirror_ubuntu-bionic-kernel.git] / include / net / bluetooth / hci_core.h
CommitLineData
04fafe4e 1/*
1da177e4 2 BlueZ - Bluetooth protocol stack for Linux
2d0a0346 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
1da177e4
LT		 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
04fafe4e
RS		 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
1da177e4
LT		 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
04fafe4e
RS		 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4
LT		 22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __HCI_CORE_H
26#define __HCI_CORE_H
27
a6b7a407 28#include <linux/interrupt.h>
1da177e4
LT		 29#include <net/bluetooth/hci.h>
30
31/* HCI upper protocols */
32#define HCI_PROTO_L2CAP 0
33#define HCI_PROTO_SCO 1
34
5e59b791
LAD		 35/* HCI priority */
36#define HCI_PRIO_MAX 7
37
1da177e4 38/* HCI Core structures */
1da177e4
LT		 39struct inquiry_data {
40 bdaddr_t bdaddr;
41 __u8 pscan_rep_mode;
42 __u8 pscan_period_mode;
43 __u8 pscan_mode;
44 __u8 dev_class[3];
1ebb9252 45 __le16 clock_offset;
1da177e4 46 __s8 rssi;
41a96212 47 __u8 ssp_mode;
1da177e4
LT		 48};
49
50struct inquiry_entry {
70f23020 51 struct inquiry_entry *next;
1da177e4
LT		 52 __u32 timestamp;
53 struct inquiry_data data;
54};
55
56struct inquiry_cache {
70f23020 57 spinlock_t lock;
1da177e4 58 __u32 timestamp;
70f23020 59 struct inquiry_entry *list;
1da177e4
LT		 60};
61
62struct hci_conn_hash {
63 struct list_head list;
64 spinlock_t lock;
65 unsigned int acl_num;
66 unsigned int sco_num;
fcd89c09 67 unsigned int le_num;
1da177e4
LT		 68};
69
73d80deb
LAD		 70struct hci_chan_hash {
71 struct list_head list;
72 spinlock_t lock;
73 unsigned int num;
74};
75
f0358568
JH		 76struct bdaddr_list {
77 struct list_head list;
78 bdaddr_t bdaddr;
79};
2aeb9a1a
JH		 80
81struct bt_uuid {
82 struct list_head list;
83 u8 uuid[16];
1aff6f09 84 u8 svc_hint;
2aeb9a1a
JH		 85};
86
34918cd7
VCG		 87struct key_master_id {
88 __le16 ediv;
89 u8 rand[8];
90} __packed;
91
92struct link_key_data {
93 bdaddr_t bdaddr;
94 u8 type;
95 u8 val[16];
96 u8 pin_len;
97 u8 dlen;
98 u8 data[0];
99} __packed;
100
55ed8ca1
JH		 101struct link_key {
102 struct list_head list;
103 bdaddr_t bdaddr;
104 u8 type;
105 u8 val[16];
106 u8 pin_len;
34918cd7
VCG		 107 u8 dlen;
108 u8 data[0];
55ed8ca1
JH		 109};
110
2763eda6
SJ		 111struct oob_data {
112 struct list_head list;
113 bdaddr_t bdaddr;
114 u8 hash[16];
115 u8 randomizer[16];
116};
117
76c8686f
AG		 118struct adv_entry {
119 struct list_head list;
120 bdaddr_t bdaddr;
121 u8 bdaddr_type;
122};
123
cd4c5391 124#define NUM_REASSEMBLY 4
1da177e4
LT		 125struct hci_dev {
126 struct list_head list;
127 spinlock_t lock;
128 atomic_t refcnt;
129
130 char name[8];
131 unsigned long flags;
132 __u16 id;
c13854ce 133 __u8 bus;
943da25d 134 __u8 dev_type;
1da177e4 135 bdaddr_t bdaddr;
1f6c6378 136 __u8 dev_name[HCI_MAX_NAME_LENGTH];
80a1e1db 137 __u8 eir[HCI_MAX_EIR_LENGTH];
a9de9248 138 __u8 dev_class[3];
1aff6f09
JH		 139 __u8 major_class;
140 __u8 minor_class;
1da177e4 141 __u8 features[8];
971e3a4b 142 __u8 extfeatures[8];
a9de9248 143 __u8 commands[64];
333140b5 144 __u8 ssp_mode;
1143e5a6
MH		 145 __u8 hci_ver;
146 __u16 hci_rev;
d5859e22 147 __u8 lmp_ver;
1143e5a6 148 __u16 manufacturer;
d5859e22 149 __le16 lmp_subver;
1da177e4 150 __u16 voice_setting;
17fa4b9d 151 __u8 io_capability;
1da177e4
LT		 152
153 __u16 pkt_type;
5b7f9909 154 __u16 esco_type;
1da177e4
LT		 155 __u16 link_policy;
156 __u16 link_mode;
157
04837f64
MH		 158 __u32 idle_timeout;
159 __u16 sniff_min_interval;
160 __u16 sniff_max_interval;
161
928abaa7
AE		 162 __u8 amp_status;
163 __u32 amp_total_bw;
164 __u32 amp_max_bw;
165 __u32 amp_min_latency;
166 __u32 amp_max_pdu;
167 __u8 amp_type;
168 __u16 amp_pal_cap;
169 __u16 amp_assoc_size;
170 __u32 amp_max_flush_to;
171 __u32 amp_be_flush_to;
172
1e89cffb
AE		 173 __u8 flow_ctl_mode;
174
9f61656a
JH		 175 unsigned int auto_accept_delay;
176
1da177e4
LT		 177 unsigned long quirks;
178
179 atomic_t cmd_cnt;
180 unsigned int acl_cnt;
181 unsigned int sco_cnt;
6ed58ec5 182 unsigned int le_cnt;
1da177e4
LT		 183
184 unsigned int acl_mtu;
185 unsigned int sco_mtu;
6ed58ec5 186 unsigned int le_mtu;
1da177e4
LT		 187 unsigned int acl_pkts;
188 unsigned int sco_pkts;
6ed58ec5 189 unsigned int le_pkts;
1da177e4 190
1da177e4
LT		 191 unsigned long acl_last_tx;
192 unsigned long sco_last_tx;
6ed58ec5 193 unsigned long le_last_tx;
1da177e4 194
f48fd9c8
MH		 195 struct workqueue_struct *workqueue;
196
ab81cbf9 197 struct work_struct power_on;
3243553f 198 struct delayed_work power_off;
ab81cbf9 199
16ab91ab
JH		 200 __u16 discov_timeout;
201 struct delayed_work discov_off;
202
6bd32326 203 struct timer_list cmd_timer;
1da177e4
LT		 204 struct tasklet_struct cmd_task;
205 struct tasklet_struct rx_task;
206 struct tasklet_struct tx_task;
207
208 struct sk_buff_head rx_q;
209 struct sk_buff_head raw_q;
210 struct sk_buff_head cmd_q;
211
212 struct sk_buff *sent_cmd;
cd4c5391 213 struct sk_buff *reassembly[NUM_REASSEMBLY];
1da177e4 214
a6a67efd 215 struct mutex req_lock;
1da177e4
LT		 216 wait_queue_head_t req_wait_q;
217 __u32 req_status;
218 __u32 req_result;
a5040efa
JH		 219
220 __u16 init_last_cmd;
1da177e4 221
2e58ef3e
JH		 222 struct list_head mgmt_pending;
223
1da177e4
LT		 224 struct inquiry_cache inq_cache;
225 struct hci_conn_hash conn_hash;
ea4bd8ba 226 struct list_head blacklist;
1da177e4 227
2aeb9a1a
JH		 228 struct list_head uuids;
229
55ed8ca1
JH		 230 struct list_head link_keys;
231
2763eda6
SJ		 232 struct list_head remote_oob_data;
233
76c8686f 234 struct list_head adv_entries;
35815085 235 struct timer_list adv_timer;
76c8686f 236
1da177e4
LT		 237 struct hci_dev_stats stat;
238
239 struct sk_buff_head driver_init;
240
241 void *driver_data;
242 void *core_data;
243
70f23020 244 atomic_t promisc;
1da177e4 245
ca325f69
MH		 246 struct dentry *debugfs;
247
a91f2e39
MH		 248 struct device *parent;
249 struct device dev;
1da177e4 250
611b30f7
MH		 251 struct rfkill *rfkill;
252
70f23020 253 struct module *owner;
1da177e4
LT		 254
255 int (*open)(struct hci_dev *hdev);
256 int (*close)(struct hci_dev *hdev);
257 int (*flush)(struct hci_dev *hdev);
258 int (*send)(struct sk_buff *skb);
259 void (*destruct)(struct hci_dev *hdev);
260 void (*notify)(struct hci_dev *hdev, unsigned int evt);
261 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
262};
263
264struct hci_conn {
265 struct list_head list;
266
adc4266d 267 atomic_t refcnt;
adc4266d
SJ		 268
269 bdaddr_t dst;
5a9d0a3f 270 __u8 dst_type;
adc4266d
SJ		 271 __u16 handle;
272 __u16 state;
273 __u8 mode;
274 __u8 type;
275 __u8 out;
276 __u8 attempt;
277 __u8 dev_class[3];
278 __u8 features[8];
279 __u8 ssp_mode;
280 __u16 interval;
281 __u16 pkt_type;
282 __u16 link_policy;
283 __u32 link_mode;
13d39315 284 __u8 key_type;
adc4266d
SJ		 285 __u8 auth_type;
286 __u8 sec_level;
287 __u8 pending_sec_level;
288 __u8 pin_length;
726b4ffc 289 __u8 enc_key_size;
adc4266d
SJ		 290 __u8 io_capability;
291 __u8 power_save;
292 __u16 disc_timeout;
293 unsigned long pend;
04837f64 294
03b555e1
JH		 295 __u8 remote_cap;
296 __u8 remote_oob;
297 __u8 remote_auth;
298
adc4266d 299 unsigned int sent;
04837f64 300
1da177e4 301 struct sk_buff_head data_q;
73d80deb 302 struct hci_chan_hash chan_hash;
1da177e4 303
04837f64
MH		 304 struct timer_list disc_timer;
305 struct timer_list idle_timer;
9f61656a 306 struct timer_list auto_accept_timer;
04837f64 307
f3784d83
RQ		 308 struct work_struct work_add;
309 struct work_struct work_del;
b219e3ac
MH		 310
311 struct device dev;
9eba32b8 312 atomic_t devref;
b219e3ac 313
1da177e4
LT		 314 struct hci_dev *hdev;
315 void *l2cap_data;
316 void *sco_data;
1da177e4
LT		 317
318 struct hci_conn *link;
e9a416b5
JH		 319
320 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
321 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
322 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
1da177e4
LT		 323};
324
73d80deb
LAD		 325struct hci_chan {
326 struct list_head list;
327
328 struct hci_conn *conn;
329 struct sk_buff_head data_q;
330 unsigned int sent;
331};
332
1da177e4
LT		 333extern struct hci_proto *hci_proto[];
334extern struct list_head hci_dev_list;
335extern struct list_head hci_cb_list;
336extern rwlock_t hci_dev_list_lock;
337extern rwlock_t hci_cb_list_lock;
338
339/* ----- Inquiry cache ----- */
70f23020
AE		 340#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
341#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
1da177e4
LT		 342
343#define inquiry_cache_lock(c) spin_lock(&c->lock)
344#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
345#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
346#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
347
348static inline void inquiry_cache_init(struct hci_dev *hdev)
349{
350 struct inquiry_cache *c = &hdev->inq_cache;
351 spin_lock_init(&c->lock);
352 c->list = NULL;
353}
354
355static inline int inquiry_cache_empty(struct hci_dev *hdev)
356{
357 struct inquiry_cache *c = &hdev->inq_cache;
a02cec21 358 return c->list == NULL;
1da177e4
LT		 359}
360
361static inline long inquiry_cache_age(struct hci_dev *hdev)
362{
363 struct inquiry_cache *c = &hdev->inq_cache;
364 return jiffies - c->timestamp;
365}
366
367static inline long inquiry_entry_age(struct inquiry_entry *e)
368{
369 return jiffies - e->timestamp;
370}
371
5a9d0a3f
WR		 372struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
373 bdaddr_t *bdaddr);
1da177e4
LT		 374void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
375
376/* ----- HCI Connections ----- */
377enum {
378 HCI_CONN_AUTH_PEND,
19f8def0 379 HCI_CONN_REAUTH_PEND,
1da177e4 380 HCI_CONN_ENCRYPT_PEND,
04837f64
MH		 381 HCI_CONN_RSWITCH_PEND,
382 HCI_CONN_MODE_CHANGE_PEND,
e73439d8 383 HCI_CONN_SCO_SETUP_PEND,
d26a2345 384 HCI_CONN_LE_SMP_PEND,
1da177e4
LT		 385};
386
387static inline void hci_conn_hash_init(struct hci_dev *hdev)
388{
389 struct hci_conn_hash *h = &hdev->conn_hash;
390 INIT_LIST_HEAD(&h->list);
391 spin_lock_init(&h->lock);
392 h->acl_num = 0;
393 h->sco_num = 0;
394}
395
396static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
397{
398 struct hci_conn_hash *h = &hdev->conn_hash;
399 list_add(&c->list, &h->list);
fcd89c09
VT		 400 switch (c->type) {
401 case ACL_LINK:
1da177e4 402 h->acl_num++;
fcd89c09
VT		 403 break;
404 case LE_LINK:
405 h->le_num++;
406 break;
407 case SCO_LINK:
408 case ESCO_LINK:
1da177e4 409 h->sco_num++;
fcd89c09
VT		 410 break;
411 }
1da177e4
LT		 412}
413
414static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
415{
416 struct hci_conn_hash *h = &hdev->conn_hash;
417 list_del(&c->list);
fcd89c09
VT		 418 switch (c->type) {
419 case ACL_LINK:
1da177e4 420 h->acl_num--;
fcd89c09
VT		 421 break;
422 case LE_LINK:
423 h->le_num--;
424 break;
425 case SCO_LINK:
426 case ESCO_LINK:
1da177e4 427 h->sco_num--;
fcd89c09
VT		 428 break;
429 }
1da177e4
LT		 430}
431
52087a79
LAD		 432static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
433{
434 struct hci_conn_hash *h = &hdev->conn_hash;
435 switch (type) {
436 case ACL_LINK:
437 return h->acl_num;
438 case LE_LINK:
439 return h->le_num;
440 case SCO_LINK:
441 case ESCO_LINK:
442 return h->sco_num;
443 default:
444 return 0;
445 }
446}
447
1da177e4 448static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
adc4266d 449 __u16 handle)
1da177e4
LT		 450{
451 struct hci_conn_hash *h = &hdev->conn_hash;
452 struct list_head *p;
453 struct hci_conn *c;
454
455 list_for_each(p, &h->list) {
456 c = list_entry(p, struct hci_conn, list);
457 if (c->handle == handle)
458 return c;
459 }
460 return NULL;
461}
462
463static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
adc4266d 464 __u8 type, bdaddr_t *ba)
1da177e4
LT		 465{
466 struct hci_conn_hash *h = &hdev->conn_hash;
467 struct list_head *p;
468 struct hci_conn *c;
469
470 list_for_each(p, &h->list) {
471 c = list_entry(p, struct hci_conn, list);
472 if (c->type == type && !bacmp(&c->dst, ba))
473 return c;
474 }
475 return NULL;
476}
477
4c67bc74 478static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
adc4266d 479 __u8 type, __u16 state)
4c67bc74
MH		 480{
481 struct hci_conn_hash *h = &hdev->conn_hash;
482 struct list_head *p;
483 struct hci_conn *c;
484
485 list_for_each(p, &h->list) {
486 c = list_entry(p, struct hci_conn, list);
487 if (c->type == type && c->state == state)
488 return c;
489 }
490 return NULL;
491}
492
73d80deb
LAD		 493static inline void hci_chan_hash_init(struct hci_conn *c)
494{
495 struct hci_chan_hash *h = &c->chan_hash;
496 INIT_LIST_HEAD(&h->list);
497 spin_lock_init(&h->lock);
498 h->num = 0;
499}
500
501static inline void hci_chan_hash_add(struct hci_conn *c, struct hci_chan *chan)
502{
503 struct hci_chan_hash *h = &c->chan_hash;
504 list_add(&chan->list, &h->list);
505 h->num++;
506}
507
508static inline void hci_chan_hash_del(struct hci_conn *c, struct hci_chan *chan)
509{
510 struct hci_chan_hash *h = &c->chan_hash;
511 list_del(&chan->list);
512 h->num--;
513}
514
4c67bc74 515void hci_acl_connect(struct hci_conn *conn);
1da177e4
LT		 516void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
517void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82 518void hci_setup_sync(struct hci_conn *conn, __u16 handle);
e73439d8 519void hci_sco_setup(struct hci_conn *conn, __u8 status);
1da177e4
LT		 520
521struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
a9de9248
MH		 522int hci_conn_del(struct hci_conn *conn);
523void hci_conn_hash_flush(struct hci_dev *hdev);
524void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4 525
73d80deb
LAD		 526struct hci_chan *hci_chan_create(struct hci_conn *conn);
527int hci_chan_del(struct hci_chan *chan);
528void hci_chan_hash_flush(struct hci_conn *conn);
529
5a9d0a3f
WR		 530struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
531 __u8 sec_level, __u8 auth_type);
e7c29cb1 532int hci_conn_check_link_mode(struct hci_conn *conn);
b3b1b061 533int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
0684e5f9 534int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4 535int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355 536int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4 537
14b12d0b 538void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
04837f64 539void hci_conn_enter_sniff_mode(struct hci_conn *conn);
1da177e4 540
9eba32b8
MH		 541void hci_conn_hold_device(struct hci_conn *conn);
542void hci_conn_put_device(struct hci_conn *conn);
543
1da177e4
LT		 544static inline void hci_conn_hold(struct hci_conn *conn)
545{
546 atomic_inc(&conn->refcnt);
04837f64 547 del_timer(&conn->disc_timer);
1da177e4
LT		 548}
549
550static inline void hci_conn_put(struct hci_conn *conn)
551{
552 if (atomic_dec_and_test(&conn->refcnt)) {
04837f64 553 unsigned long timeo;
454d48ff 554 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
04837f64 555 del_timer(&conn->idle_timer);
6ac59344 556 if (conn->state == BT_CONNECTED) {
052b30b0 557 timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344 558 if (!conn->out)
052b30b0 559 timeo *= 2;
5a9d0a3f 560 } else {
6ac59344 561 timeo = msecs_to_jiffies(10);
5a9d0a3f
WR		 562 }
563 } else {
04837f64 564 timeo = msecs_to_jiffies(10);
5a9d0a3f 565 }
04837f64 566 mod_timer(&conn->disc_timer, jiffies + timeo);
1da177e4
LT		 567 }
568}
569
1da177e4
LT		 570/* ----- HCI Devices ----- */
571static inline void __hci_dev_put(struct hci_dev *d)
572{
573 if (atomic_dec_and_test(&d->refcnt))
574 d->destruct(d);
575}
576
577static inline void hci_dev_put(struct hci_dev *d)
04fafe4e 578{
1da177e4
LT		 579 __hci_dev_put(d);
580 module_put(d->owner);
581}
582
583static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
584{
585 atomic_inc(&d->refcnt);
586 return d;
587}
588
589static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
590{
591 if (try_module_get(d->owner))
592 return __hci_dev_hold(d);
593 return NULL;
594}
595
596#define hci_dev_lock(d) spin_lock(&d->lock)
597#define hci_dev_unlock(d) spin_unlock(&d->lock)
598#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
599#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
600
601struct hci_dev *hci_dev_get(int index);
602struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
603
604struct hci_dev *hci_alloc_dev(void);
605void hci_free_dev(struct hci_dev *hdev);
606int hci_register_dev(struct hci_dev *hdev);
59735631 607void hci_unregister_dev(struct hci_dev *hdev);
1da177e4
LT		 608int hci_suspend_dev(struct hci_dev *hdev);
609int hci_resume_dev(struct hci_dev *hdev);
610int hci_dev_open(__u16 dev);
611int hci_dev_close(__u16 dev);
612int hci_dev_reset(__u16 dev);
613int hci_dev_reset_stat(__u16 dev);
614int hci_dev_cmd(unsigned int cmd, void __user *arg);
615int hci_get_dev_list(void __user *arg);
616int hci_get_dev_info(void __user *arg);
617int hci_get_conn_list(void __user *arg);
618int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
40be492f 619int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1da177e4
LT		 620int hci_inquiry(void __user *arg);
621
f0358568
JH		 622struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
623int hci_blacklist_clear(struct hci_dev *hdev);
b2a66aad
AJ		 624int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
625int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
f0358568 626
2aeb9a1a
JH		 627int hci_uuids_clear(struct hci_dev *hdev);
628
55ed8ca1
JH		 629int hci_link_keys_clear(struct hci_dev *hdev);
630struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
d25e28ab
JH		 631int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
632 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
75d262c2
VCG		 633struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
634struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
635 bdaddr_t *bdaddr, u8 type);
636int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
726b4ffc 637 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
55ed8ca1
JH		 638int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
639
2763eda6
SJ		 640int hci_remote_oob_data_clear(struct hci_dev *hdev);
641struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
642 bdaddr_t *bdaddr);
643int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
644 u8 *randomizer);
645int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
646
35815085 647#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
76c8686f
AG		 648int hci_adv_entries_clear(struct hci_dev *hdev);
649struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
650int hci_add_adv_entry(struct hci_dev *hdev,
651 struct hci_ev_le_advertising_info *ev);
652
ab81cbf9
JH		 653void hci_del_off_timer(struct hci_dev *hdev);
654
1da177e4
LT		 655void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
656
76bca880 657int hci_recv_frame(struct sk_buff *skb);
ef222013 658int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
99811510 659int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
ef222013 660
0ac7e700 661void hci_init_sysfs(struct hci_dev *hdev);
ce242970
DH		 662int hci_add_sysfs(struct hci_dev *hdev);
663void hci_del_sysfs(struct hci_dev *hdev);
a67e899c 664void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac
MH		 665void hci_conn_add_sysfs(struct hci_conn *conn);
666void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4 667
a91f2e39 668#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4
LT		 669
670/* ----- LMP capabilities ----- */
04837f64
MH		 671#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
672#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
673#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
674#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909 675#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974 676#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
e702112f 677#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
6ed58ec5 678#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
1da177e4 679
eead27da
AG		 680/* ----- Extended LMP capabilities ----- */
681#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
682
1da177e4
LT		 683/* ----- HCI protocols ----- */
684struct hci_proto {
8c1b2355 685 char *name;
1da177e4
LT		 686 unsigned int id;
687 unsigned long flags;
688
689 void *priv;
690
5a9d0a3f
WR		 691 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
692 __u8 type);
1da177e4 693 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
2950f21a
MH		 694 int (*disconn_ind) (struct hci_conn *conn);
695 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
5a9d0a3f
WR		 696 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
697 __u16 flags);
1da177e4 698 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
5a9d0a3f
WR		 699 int (*security_cfm) (struct hci_conn *conn, __u8 status,
700 __u8 encrypt);
1da177e4
LT		 701};
702
5a9d0a3f
WR		 703static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
704 __u8 type)
1da177e4
LT		 705{
706 register struct hci_proto *hp;
707 int mask = 0;
8c1b2355 708
1da177e4
LT		 709 hp = hci_proto[HCI_PROTO_L2CAP];
710 if (hp && hp->connect_ind)
711 mask |= hp->connect_ind(hdev, bdaddr, type);
712
713 hp = hci_proto[HCI_PROTO_SCO];
714 if (hp && hp->connect_ind)
715 mask |= hp->connect_ind(hdev, bdaddr, type);
716
717 return mask;
718}
719
720static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
721{
722 register struct hci_proto *hp;
723
724 hp = hci_proto[HCI_PROTO_L2CAP];
725 if (hp && hp->connect_cfm)
726 hp->connect_cfm(conn, status);
727
728 hp = hci_proto[HCI_PROTO_SCO];
729 if (hp && hp->connect_cfm)
730 hp->connect_cfm(conn, status);
e9a416b5
JH		 731
732 if (conn->connect_cfm_cb)
733 conn->connect_cfm_cb(conn, status);
1da177e4
LT		 734}
735
2950f21a 736static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4
LT		 737{
738 register struct hci_proto *hp;
9f5a0d7b 739 int reason = HCI_ERROR_REMOTE_USER_TERM;
1da177e4
LT		 740
741 hp = hci_proto[HCI_PROTO_L2CAP];
742 if (hp && hp->disconn_ind)
2950f21a 743 reason = hp->disconn_ind(conn);
1da177e4
LT		 744
745 hp = hci_proto[HCI_PROTO_SCO];
746 if (hp && hp->disconn_ind)
2950f21a
MH		 747 reason = hp->disconn_ind(conn);
748
749 return reason;
750}
751
752static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
753{
754 register struct hci_proto *hp;
755
756 hp = hci_proto[HCI_PROTO_L2CAP];
757 if (hp && hp->disconn_cfm)
758 hp->disconn_cfm(conn, reason);
759
760 hp = hci_proto[HCI_PROTO_SCO];
761 if (hp && hp->disconn_cfm)
762 hp->disconn_cfm(conn, reason);
e9a416b5
JH		 763
764 if (conn->disconn_cfm_cb)
765 conn->disconn_cfm_cb(conn, reason);
1da177e4
LT		 766}
767
768static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
769{
770 register struct hci_proto *hp;
8c1b2355
MH		 771 __u8 encrypt;
772
773 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
774 return;
775
776 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
1da177e4
LT		 777
778 hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355
MH		 779 if (hp && hp->security_cfm)
780 hp->security_cfm(conn, status, encrypt);
1da177e4
LT		 781
782 hp = hci_proto[HCI_PROTO_SCO];
8c1b2355
MH		 783 if (hp && hp->security_cfm)
784 hp->security_cfm(conn, status, encrypt);
e9a416b5
JH		 785
786 if (conn->security_cfm_cb)
787 conn->security_cfm_cb(conn, status);
1da177e4
LT		 788}
789
5a9d0a3f
WR		 790static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
791 __u8 encrypt)
1da177e4
LT		 792{
793 register struct hci_proto *hp;
794
795 hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355
MH		 796 if (hp && hp->security_cfm)
797 hp->security_cfm(conn, status, encrypt);
1da177e4
LT		 798
799 hp = hci_proto[HCI_PROTO_SCO];
8c1b2355
MH		 800 if (hp && hp->security_cfm)
801 hp->security_cfm(conn, status, encrypt);
e9a416b5
JH		 802
803 if (conn->security_cfm_cb)
804 conn->security_cfm_cb(conn, status);
1da177e4
LT		 805}
806
807int hci_register_proto(struct hci_proto *hproto);
808int hci_unregister_proto(struct hci_proto *hproto);
809
810/* ----- HCI callbacks ----- */
811struct hci_cb {
812 struct list_head list;
813
814 char *name;
815
5a9d0a3f
WR		 816 void (*security_cfm) (struct hci_conn *conn, __u8 status,
817 __u8 encrypt);
1da177e4
LT		 818 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
819 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
820};
821
822static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
823{
824 struct list_head *p;
8c1b2355 825 __u8 encrypt;
1da177e4
LT		 826
827 hci_proto_auth_cfm(conn, status);
828
8c1b2355
MH		 829 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
830 return;
831
832 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
833
1da177e4
LT		 834 read_lock_bh(&hci_cb_list_lock);
835 list_for_each(p, &hci_cb_list) {
836 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 837 if (cb->security_cfm)
838 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 839 }
840 read_unlock_bh(&hci_cb_list_lock);
841}
842
5a9d0a3f
WR		 843static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
844 __u8 encrypt)
1da177e4
LT		 845{
846 struct list_head *p;
847
435fef20
MH		 848 if (conn->sec_level == BT_SECURITY_SDP)
849 conn->sec_level = BT_SECURITY_LOW;
850
88167aed
VCG		 851 if (conn->pending_sec_level > conn->sec_level)
852 conn->sec_level = conn->pending_sec_level;
853
9719f8af 854 hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4
LT		 855
856 read_lock_bh(&hci_cb_list_lock);
857 list_for_each(p, &hci_cb_list) {
858 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 859 if (cb->security_cfm)
860 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 861 }
862 read_unlock_bh(&hci_cb_list_lock);
863}
864
865static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
866{
867 struct list_head *p;
868
869 read_lock_bh(&hci_cb_list_lock);
870 list_for_each(p, &hci_cb_list) {
871 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
872 if (cb->key_change_cfm)
873 cb->key_change_cfm(conn, status);
874 }
875 read_unlock_bh(&hci_cb_list_lock);
876}
877
5a9d0a3f
WR		 878static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
879 __u8 role)
1da177e4
LT		 880{
881 struct list_head *p;
882
883 read_lock_bh(&hci_cb_list_lock);
884 list_for_each(p, &hci_cb_list) {
885 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
886 if (cb->role_switch_cfm)
887 cb->role_switch_cfm(conn, status, role);
888 }
889 read_unlock_bh(&hci_cb_list_lock);
890}
891
892int hci_register_cb(struct hci_cb *hcb);
893int hci_unregister_cb(struct hci_cb *hcb);
894
895int hci_register_notifier(struct notifier_block *nb);
896int hci_unregister_notifier(struct notifier_block *nb);
897
a9de9248 898int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
73d80deb 899void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
0d861d8b 900void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1da177e4 901
a9de9248 902void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1da177e4
LT		 903
904void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
905
906/* ----- HCI Sockets ----- */
eec8d2bc
JH		 907void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
908 struct sock *skip_sk);
1da177e4 909
0381101f
JH		 910/* Management interface */
911int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
744cf19e
JH		 912int mgmt_index_added(struct hci_dev *hdev);
913int mgmt_index_removed(struct hci_dev *hdev);
914int mgmt_powered(struct hci_dev *hdev, u8 powered);
915int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
916int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
917int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
918int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
919 u8 persistent);
48264f06
JH		 920int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
921 u8 addr_type);
922int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
923 u8 addr_type);
37d9ef76 924int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
48264f06
JH		 925int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
926 u8 addr_type, u8 status);
744cf19e
JH		 927int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
928int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
c35938b2 929 u8 status);
744cf19e
JH		 930int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
931 u8 status);
932int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
933 __le32 value, u8 confirm_hint);
934int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
935 u8 status);
936int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
937 bdaddr_t *bdaddr, u8 status);
604086b7
BG		 938int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr);
939int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
940 u8 status);
941int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,
942 bdaddr_t *bdaddr, u8 status);
744cf19e
JH		 943int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
944int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
945int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
946 u8 *randomizer, u8 status);
48264f06
JH		 947int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
948 u8 addr_type, u8 *dev_class, s8 rssi, u8 *eir);
744cf19e 949int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name);
7a135109 950int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
e6d465cb 951int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
744cf19e
JH		 952int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
953int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
954int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
0381101f 955
1da177e4
LT		 956/* HCI info for socket */
957#define hci_pi(sk) ((struct hci_pinfo *) sk)
958
959struct hci_pinfo {
960 struct bt_sock bt;
961 struct hci_dev *hdev;
962 struct hci_filter filter;
963 __u32 cmsg_mask;
c02178d2 964 unsigned short channel;
1da177e4
LT		 965};
966
967/* HCI security filter */
968#define HCI_SFLT_MAX_OGF 5
969
970struct hci_sec_filter {
971 __u32 type_mask;
972 __u32 event_mask[2];
973 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
974};
975
976/* ----- HCI requests ----- */
977#define HCI_REQ_DONE 0
978#define HCI_REQ_PEND 1
979#define HCI_REQ_CANCELED 2
980
a6a67efd
TG		 981#define hci_req_lock(d) mutex_lock(&d->req_lock)
982#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 983
23bb5763 984void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1da177e4 985
2ce603eb
CT		 986void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
987 u16 latency, u16 to_multiplier);
a7a595f6
VCG		 988void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
989 __u8 ltk[16]);
990void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
991void hci_le_ltk_neg_reply(struct hci_conn *conn);
992
2519a1fc 993int hci_do_inquiry(struct hci_dev *hdev, u8 length);
023d5049 994int hci_cancel_inquiry(struct hci_dev *hdev);
2519a1fc 995
1da177e4 996#endif /* __HCI_CORE_H */
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