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Bluetooth: Remove lock from inquiry_cache
[GitHub/mt8127/android_kernel_alcatel_ttab.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
5e59b791
LAD		 31/* HCI priority */
32#define HCI_PRIO_MAX 7
33
1da177e4 34/* HCI Core structures */
1da177e4
LT		 35struct 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];
1ebb9252 41 __le16 clock_offset;
1da177e4 42 __s8 rssi;
41a96212 43 __u8 ssp_mode;
1da177e4
LT		 44};
45
46struct inquiry_entry {
70f23020 47 struct inquiry_entry *next;
1da177e4
LT		 48 __u32 timestamp;
49 struct inquiry_data data;
50};
51
52struct inquiry_cache {
1da177e4 53 __u32 timestamp;
70f23020 54 struct inquiry_entry *list;
1da177e4
LT		 55};
56
57struct hci_conn_hash {
58 struct list_head list;
1da177e4
LT		 59 unsigned int acl_num;
60 unsigned int sco_num;
fcd89c09 61 unsigned int le_num;
1da177e4
LT		 62};
63
f0358568
JH		 64struct bdaddr_list {
65 struct list_head list;
66 bdaddr_t bdaddr;
67};
2aeb9a1a
JH		 68
69struct bt_uuid {
70 struct list_head list;
71 u8 uuid[16];
1aff6f09 72 u8 svc_hint;
2aeb9a1a
JH		 73};
74
34918cd7
VCG		 75struct key_master_id {
76 __le16 ediv;
77 u8 rand[8];
78} __packed;
79
80struct link_key_data {
81 bdaddr_t bdaddr;
82 u8 type;
83 u8 val[16];
84 u8 pin_len;
85 u8 dlen;
86 u8 data[0];
87} __packed;
88
55ed8ca1
JH		 89struct link_key {
90 struct list_head list;
91 bdaddr_t bdaddr;
92 u8 type;
93 u8 val[16];
94 u8 pin_len;
34918cd7
VCG		 95 u8 dlen;
96 u8 data[0];
55ed8ca1
JH		 97};
98
2763eda6
SJ		 99struct oob_data {
100 struct list_head list;
101 bdaddr_t bdaddr;
102 u8 hash[16];
103 u8 randomizer[16];
104};
105
76c8686f
AG		 106struct adv_entry {
107 struct list_head list;
108 bdaddr_t bdaddr;
109 u8 bdaddr_type;
110};
111
cd4c5391 112#define NUM_REASSEMBLY 4
1da177e4
LT		 113struct hci_dev {
114 struct list_head list;
09fd0de5 115 struct mutex lock;
1da177e4
LT		 116 atomic_t refcnt;
117
118 char name[8];
119 unsigned long flags;
120 __u16 id;
c13854ce 121 __u8 bus;
943da25d 122 __u8 dev_type;
1da177e4 123 bdaddr_t bdaddr;
1f6c6378 124 __u8 dev_name[HCI_MAX_NAME_LENGTH];
80a1e1db 125 __u8 eir[HCI_MAX_EIR_LENGTH];
a9de9248 126 __u8 dev_class[3];
1aff6f09
JH		 127 __u8 major_class;
128 __u8 minor_class;
1da177e4 129 __u8 features[8];
971e3a4b 130 __u8 extfeatures[8];
a9de9248 131 __u8 commands[64];
333140b5 132 __u8 ssp_mode;
1143e5a6
MH		 133 __u8 hci_ver;
134 __u16 hci_rev;
d5859e22 135 __u8 lmp_ver;
1143e5a6 136 __u16 manufacturer;
d5859e22 137 __le16 lmp_subver;
1da177e4 138 __u16 voice_setting;
17fa4b9d 139 __u8 io_capability;
1da177e4
LT		 140
141 __u16 pkt_type;
5b7f9909 142 __u16 esco_type;
1da177e4
LT		 143 __u16 link_policy;
144 __u16 link_mode;
145
04837f64
MH		 146 __u32 idle_timeout;
147 __u16 sniff_min_interval;
148 __u16 sniff_max_interval;
149
928abaa7
AE		 150 __u8 amp_status;
151 __u32 amp_total_bw;
152 __u32 amp_max_bw;
153 __u32 amp_min_latency;
154 __u32 amp_max_pdu;
155 __u8 amp_type;
156 __u16 amp_pal_cap;
157 __u16 amp_assoc_size;
158 __u32 amp_max_flush_to;
159 __u32 amp_be_flush_to;
160
1e89cffb
AE		 161 __u8 flow_ctl_mode;
162
9f61656a
JH		 163 unsigned int auto_accept_delay;
164
1da177e4
LT		 165 unsigned long quirks;
166
167 atomic_t cmd_cnt;
168 unsigned int acl_cnt;
169 unsigned int sco_cnt;
6ed58ec5 170 unsigned int le_cnt;
1da177e4
LT		 171
172 unsigned int acl_mtu;
173 unsigned int sco_mtu;
6ed58ec5 174 unsigned int le_mtu;
1da177e4
LT		 175 unsigned int acl_pkts;
176 unsigned int sco_pkts;
6ed58ec5 177 unsigned int le_pkts;
1da177e4 178
350ee4cf
AE		 179 __u16 block_len;
180 __u16 block_mtu;
181 __u16 num_blocks;
182 __u16 block_cnt;
183
1da177e4
LT		 184 unsigned long acl_last_tx;
185 unsigned long sco_last_tx;
6ed58ec5 186 unsigned long le_last_tx;
1da177e4 187
f48fd9c8
MH		 188 struct workqueue_struct *workqueue;
189
ab81cbf9 190 struct work_struct power_on;
3243553f 191 struct delayed_work power_off;
ab81cbf9 192
16ab91ab
JH		 193 __u16 discov_timeout;
194 struct delayed_work discov_off;
195
7d78525d
JH		 196 struct delayed_work service_cache;
197
6bd32326 198 struct timer_list cmd_timer;
b78752cc
MH		 199
200 struct work_struct rx_work;
c347b765 201 struct work_struct cmd_work;
3eff45ea 202 struct work_struct tx_work;
1da177e4
LT		 203
204 struct sk_buff_head rx_q;
205 struct sk_buff_head raw_q;
206 struct sk_buff_head cmd_q;
207
208 struct sk_buff *sent_cmd;
cd4c5391 209 struct sk_buff *reassembly[NUM_REASSEMBLY];
1da177e4 210
a6a67efd 211 struct mutex req_lock;
1da177e4
LT		 212 wait_queue_head_t req_wait_q;
213 __u32 req_status;
214 __u32 req_result;
a5040efa
JH		 215
216 __u16 init_last_cmd;
1da177e4 217
2e58ef3e
JH		 218 struct list_head mgmt_pending;
219
1da177e4
LT		 220 struct inquiry_cache inq_cache;
221 struct hci_conn_hash conn_hash;
ea4bd8ba 222 struct list_head blacklist;
1da177e4 223
2aeb9a1a
JH		 224 struct list_head uuids;
225
55ed8ca1
JH		 226 struct list_head link_keys;
227
2763eda6
SJ		 228 struct list_head remote_oob_data;
229
76c8686f 230 struct list_head adv_entries;
db323f2f 231 struct delayed_work adv_work;
76c8686f 232
1da177e4
LT		 233 struct hci_dev_stats stat;
234
235 struct sk_buff_head driver_init;
236
237 void *driver_data;
238 void *core_data;
239
70f23020 240 atomic_t promisc;
1da177e4 241
ca325f69
MH		 242 struct dentry *debugfs;
243
a91f2e39
MH		 244 struct device *parent;
245 struct device dev;
1da177e4 246
611b30f7
MH		 247 struct rfkill *rfkill;
248
70f23020 249 struct module *owner;
1da177e4 250
d23264a8
AG		 251 unsigned long dev_flags;
252
1da177e4
LT		 253 int (*open)(struct hci_dev *hdev);
254 int (*close)(struct hci_dev *hdev);
255 int (*flush)(struct hci_dev *hdev);
256 int (*send)(struct sk_buff *skb);
257 void (*destruct)(struct hci_dev *hdev);
258 void (*notify)(struct hci_dev *hdev, unsigned int evt);
259 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
260};
261
262struct hci_conn {
263 struct list_head list;
264
adc4266d 265 atomic_t refcnt;
adc4266d
SJ		 266
267 bdaddr_t dst;
5a9d0a3f 268 __u8 dst_type;
adc4266d
SJ		 269 __u16 handle;
270 __u16 state;
271 __u8 mode;
272 __u8 type;
273 __u8 out;
274 __u8 attempt;
275 __u8 dev_class[3];
276 __u8 features[8];
277 __u8 ssp_mode;
278 __u16 interval;
279 __u16 pkt_type;
280 __u16 link_policy;
281 __u32 link_mode;
13d39315 282 __u8 key_type;
adc4266d
SJ		 283 __u8 auth_type;
284 __u8 sec_level;
285 __u8 pending_sec_level;
286 __u8 pin_length;
726b4ffc 287 __u8 enc_key_size;
adc4266d
SJ		 288 __u8 io_capability;
289 __u8 power_save;
290 __u16 disc_timeout;
291 unsigned long pend;
04837f64 292
03b555e1
JH		 293 __u8 remote_cap;
294 __u8 remote_oob;
295 __u8 remote_auth;
296
adc4266d 297 unsigned int sent;
04837f64 298
1da177e4 299 struct sk_buff_head data_q;
2c33c06a 300 struct list_head chan_list;
1da177e4 301
19c40e3b 302 struct delayed_work disc_work;
04837f64 303 struct timer_list idle_timer;
9f61656a 304 struct timer_list auto_accept_timer;
04837f64 305
b219e3ac 306 struct device dev;
9eba32b8 307 atomic_t devref;
b219e3ac 308
1da177e4
LT		 309 struct hci_dev *hdev;
310 void *l2cap_data;
311 void *sco_data;
2b64d153 312 void *smp_conn;
1da177e4
LT		 313
314 struct hci_conn *link;
e9a416b5
JH		 315
316 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
317 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
318 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
1da177e4
LT		 319};
320
73d80deb
LAD		 321struct hci_chan {
322 struct list_head list;
323
324 struct hci_conn *conn;
325 struct sk_buff_head data_q;
326 unsigned int sent;
327};
328
1da177e4
LT		 329extern struct list_head hci_dev_list;
330extern struct list_head hci_cb_list;
331extern rwlock_t hci_dev_list_lock;
332extern rwlock_t hci_cb_list_lock;
333
686ebf28
UF		 334/* ----- HCI interface to upper protocols ----- */
335extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
336extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
337extern int l2cap_disconn_ind(struct hci_conn *hcon);
338extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
339extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
340extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
341
342extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
343extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
344extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
345extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
346
1da177e4 347/* ----- Inquiry cache ----- */
70f23020
AE		 348#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
349#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
1da177e4 350
1da177e4
LT		 351static inline void inquiry_cache_init(struct hci_dev *hdev)
352{
353 struct inquiry_cache *c = &hdev->inq_cache;
1da177e4
LT		 354 c->list = NULL;
355}
356
357static inline int inquiry_cache_empty(struct hci_dev *hdev)
358{
359 struct inquiry_cache *c = &hdev->inq_cache;
a02cec21 360 return c->list == NULL;
1da177e4
LT		 361}
362
363static inline long inquiry_cache_age(struct hci_dev *hdev)
364{
365 struct inquiry_cache *c = &hdev->inq_cache;
366 return jiffies - c->timestamp;
367}
368
369static inline long inquiry_entry_age(struct inquiry_entry *e)
370{
371 return jiffies - e->timestamp;
372}
373
5a9d0a3f
WR		 374struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
375 bdaddr_t *bdaddr);
1da177e4
LT		 376void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
377
378/* ----- HCI Connections ----- */
379enum {
380 HCI_CONN_AUTH_PEND,
19f8def0 381 HCI_CONN_REAUTH_PEND,
1da177e4 382 HCI_CONN_ENCRYPT_PEND,
04837f64
MH		 383 HCI_CONN_RSWITCH_PEND,
384 HCI_CONN_MODE_CHANGE_PEND,
e73439d8 385 HCI_CONN_SCO_SETUP_PEND,
d26a2345 386 HCI_CONN_LE_SMP_PEND,
1da177e4
LT		 387};
388
389static inline void hci_conn_hash_init(struct hci_dev *hdev)
390{
391 struct hci_conn_hash *h = &hdev->conn_hash;
392 INIT_LIST_HEAD(&h->list);
1da177e4
LT		 393 h->acl_num = 0;
394 h->sco_num = 0;
dc8ed672 395 h->le_num = 0;
1da177e4
LT		 396}
397
398static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
399{
400 struct hci_conn_hash *h = &hdev->conn_hash;
bf4c6325 401 list_add_rcu(&c->list, &h->list);
fcd89c09
VT		 402 switch (c->type) {
403 case ACL_LINK:
1da177e4 404 h->acl_num++;
fcd89c09
VT		 405 break;
406 case LE_LINK:
407 h->le_num++;
408 break;
409 case SCO_LINK:
410 case ESCO_LINK:
1da177e4 411 h->sco_num++;
fcd89c09
VT		 412 break;
413 }
1da177e4
LT		 414}
415
416static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
417{
418 struct hci_conn_hash *h = &hdev->conn_hash;
bf4c6325
GP		 419
420 list_del_rcu(&c->list);
421 synchronize_rcu();
422
fcd89c09
VT		 423 switch (c->type) {
424 case ACL_LINK:
1da177e4 425 h->acl_num--;
fcd89c09
VT		 426 break;
427 case LE_LINK:
428 h->le_num--;
429 break;
430 case SCO_LINK:
431 case ESCO_LINK:
1da177e4 432 h->sco_num--;
fcd89c09
VT		 433 break;
434 }
1da177e4
LT		 435}
436
52087a79
LAD		 437static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
438{
439 struct hci_conn_hash *h = &hdev->conn_hash;
440 switch (type) {
441 case ACL_LINK:
442 return h->acl_num;
443 case LE_LINK:
444 return h->le_num;
445 case SCO_LINK:
446 case ESCO_LINK:
447 return h->sco_num;
448 default:
449 return 0;
450 }
451}
452
1da177e4 453static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
adc4266d 454 __u16 handle)
1da177e4
LT		 455{
456 struct hci_conn_hash *h = &hdev->conn_hash;
1da177e4
LT		 457 struct hci_conn *c;
458
bf4c6325
GP		 459 rcu_read_lock();
460
461 list_for_each_entry_rcu(c, &h->list, list) {
462 if (c->handle == handle) {
463 rcu_read_unlock();
1da177e4 464 return c;
bf4c6325 465 }
1da177e4 466 }
bf4c6325
GP		 467 rcu_read_unlock();
468
1da177e4
LT		 469 return NULL;
470}
471
472static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
adc4266d 473 __u8 type, bdaddr_t *ba)
1da177e4
LT		 474{
475 struct hci_conn_hash *h = &hdev->conn_hash;
1da177e4
LT		 476 struct hci_conn *c;
477
bf4c6325
GP		 478 rcu_read_lock();
479
480 list_for_each_entry_rcu(c, &h->list, list) {
481 if (c->type == type && !bacmp(&c->dst, ba)) {
482 rcu_read_unlock();
1da177e4 483 return c;
bf4c6325 484 }
1da177e4 485 }
bf4c6325
GP		 486
487 rcu_read_unlock();
488
1da177e4
LT		 489 return NULL;
490}
491
4c67bc74 492static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
adc4266d 493 __u8 type, __u16 state)
4c67bc74
MH		 494{
495 struct hci_conn_hash *h = &hdev->conn_hash;
4c67bc74
MH		 496 struct hci_conn *c;
497
bf4c6325
GP		 498 rcu_read_lock();
499
500 list_for_each_entry_rcu(c, &h->list, list) {
501 if (c->type == type && c->state == state) {
502 rcu_read_unlock();
4c67bc74 503 return c;
bf4c6325 504 }
4c67bc74 505 }
73d80deb 506
bf4c6325 507 rcu_read_unlock();
73d80deb 508
4c67bc74 509 return NULL;
73d80deb
LAD		 510}
511
4c67bc74 512void hci_acl_connect(struct hci_conn *conn);
1da177e4
LT		 513void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
514void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82 515void hci_setup_sync(struct hci_conn *conn, __u16 handle);
e73439d8 516void hci_sco_setup(struct hci_conn *conn, __u8 status);
1da177e4
LT		 517
518struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
a9de9248
MH		 519int hci_conn_del(struct hci_conn *conn);
520void hci_conn_hash_flush(struct hci_dev *hdev);
521void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4 522
73d80deb
LAD		 523struct hci_chan *hci_chan_create(struct hci_conn *conn);
524int hci_chan_del(struct hci_chan *chan);
2c33c06a 525void hci_chan_list_flush(struct hci_conn *conn);
73d80deb 526
5a9d0a3f
WR		 527struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
528 __u8 sec_level, __u8 auth_type);
e7c29cb1 529int hci_conn_check_link_mode(struct hci_conn *conn);
b3b1b061 530int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
0684e5f9 531int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4 532int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355 533int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4 534
14b12d0b 535void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1da177e4 536
9eba32b8
MH		 537void hci_conn_hold_device(struct hci_conn *conn);
538void hci_conn_put_device(struct hci_conn *conn);
539
1da177e4
LT		 540static inline void hci_conn_hold(struct hci_conn *conn)
541{
542 atomic_inc(&conn->refcnt);
19c40e3b 543 cancel_delayed_work_sync(&conn->disc_work);
1da177e4
LT		 544}
545
546static inline void hci_conn_put(struct hci_conn *conn)
547{
548 if (atomic_dec_and_test(&conn->refcnt)) {
04837f64 549 unsigned long timeo;
454d48ff 550 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
04837f64 551 del_timer(&conn->idle_timer);
6ac59344 552 if (conn->state == BT_CONNECTED) {
052b30b0 553 timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344 554 if (!conn->out)
052b30b0 555 timeo *= 2;
5a9d0a3f 556 } else {
6ac59344 557 timeo = msecs_to_jiffies(10);
5a9d0a3f
WR		 558 }
559 } else {
04837f64 560 timeo = msecs_to_jiffies(10);
5a9d0a3f 561 }
19c40e3b
GP		 562 cancel_delayed_work_sync(&conn->disc_work);
563 queue_delayed_work(conn->hdev->workqueue,
564 &conn->disc_work, jiffies + timeo);
1da177e4
LT		 565 }
566}
567
1da177e4
LT		 568/* ----- HCI Devices ----- */
569static inline void __hci_dev_put(struct hci_dev *d)
570{
571 if (atomic_dec_and_test(&d->refcnt))
572 d->destruct(d);
573}
574
1d58996d
PG		 575/*
576 * hci_dev_put and hci_dev_hold are macros to avoid dragging all the
577 * overhead of all the modular infrastructure into this header.
578 */
579#define hci_dev_put(d) \
580do { \
581 __hci_dev_put(d); \
582 module_put(d->owner); \
583} while (0)
1da177e4
LT		 584
585static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
586{
587 atomic_inc(&d->refcnt);
588 return d;
589}
590
1d58996d
PG		 591#define hci_dev_hold(d) \
592({ \
593 try_module_get(d->owner) ? __hci_dev_hold(d) : NULL; \
594})
1da177e4 595
09fd0de5
GP		 596#define hci_dev_lock(d) mutex_lock(&d->lock)
597#define hci_dev_unlock(d) mutex_unlock(&d->lock)
1da177e4
LT		 598
599struct hci_dev *hci_dev_get(int index);
600struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
601
602struct hci_dev *hci_alloc_dev(void);
603void hci_free_dev(struct hci_dev *hdev);
604int hci_register_dev(struct hci_dev *hdev);
59735631 605void hci_unregister_dev(struct hci_dev *hdev);
1da177e4
LT		 606int hci_suspend_dev(struct hci_dev *hdev);
607int hci_resume_dev(struct hci_dev *hdev);
608int hci_dev_open(__u16 dev);
609int hci_dev_close(__u16 dev);
610int hci_dev_reset(__u16 dev);
611int hci_dev_reset_stat(__u16 dev);
612int hci_dev_cmd(unsigned int cmd, void __user *arg);
613int hci_get_dev_list(void __user *arg);
614int hci_get_dev_info(void __user *arg);
615int hci_get_conn_list(void __user *arg);
616int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
40be492f 617int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1da177e4
LT		 618int hci_inquiry(void __user *arg);
619
f0358568
JH		 620struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
621int hci_blacklist_clear(struct hci_dev *hdev);
b2a66aad
AJ		 622int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
623int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
f0358568 624
2aeb9a1a
JH		 625int hci_uuids_clear(struct hci_dev *hdev);
626
55ed8ca1
JH		 627int hci_link_keys_clear(struct hci_dev *hdev);
628struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
d25e28ab
JH		 629int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
630 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
75d262c2
VCG		 631struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
632struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
633 bdaddr_t *bdaddr, u8 type);
634int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
726b4ffc 635 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
55ed8ca1
JH		 636int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
637
2763eda6
SJ		 638int hci_remote_oob_data_clear(struct hci_dev *hdev);
639struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
640 bdaddr_t *bdaddr);
641int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
642 u8 *randomizer);
643int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
644
35815085 645#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
76c8686f
AG		 646int hci_adv_entries_clear(struct hci_dev *hdev);
647struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
648int hci_add_adv_entry(struct hci_dev *hdev,
649 struct hci_ev_le_advertising_info *ev);
650
ab81cbf9
JH		 651void hci_del_off_timer(struct hci_dev *hdev);
652
1da177e4
LT		 653void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
654
76bca880 655int hci_recv_frame(struct sk_buff *skb);
ef222013 656int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
99811510 657int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
ef222013 658
0ac7e700 659void hci_init_sysfs(struct hci_dev *hdev);
ce242970
DH		 660int hci_add_sysfs(struct hci_dev *hdev);
661void hci_del_sysfs(struct hci_dev *hdev);
a67e899c 662void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac
MH		 663void hci_conn_add_sysfs(struct hci_conn *conn);
664void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4 665
a91f2e39 666#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4
LT		 667
668/* ----- LMP capabilities ----- */
04837f64
MH		 669#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
670#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
671#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
672#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909 673#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974 674#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
e702112f 675#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
6ed58ec5 676#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
1da177e4 677
eead27da
AG		 678/* ----- Extended LMP capabilities ----- */
679#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
680
1da177e4 681/* ----- HCI protocols ----- */
5a9d0a3f
WR		 682static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
683 __u8 type)
1da177e4 684{
686ebf28
UF		 685 switch (type) {
686 case ACL_LINK:
687 return l2cap_connect_ind(hdev, bdaddr);
1da177e4 688
686ebf28
UF		 689 case SCO_LINK:
690 case ESCO_LINK:
691 return sco_connect_ind(hdev, bdaddr);
1da177e4 692
686ebf28
UF		 693 default:
694 BT_ERR("unknown link type %d", type);
695 return -EINVAL;
696 }
1da177e4
LT		 697}
698
699static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
700{
686ebf28
UF		 701 switch (conn->type) {
702 case ACL_LINK:
703 case LE_LINK:
704 l2cap_connect_cfm(conn, status);
705 break;
1da177e4 706
686ebf28
UF		 707 case SCO_LINK:
708 case ESCO_LINK:
709 sco_connect_cfm(conn, status);
710 break;
1da177e4 711
686ebf28
UF		 712 default:
713 BT_ERR("unknown link type %d", conn->type);
714 break;
715 }
e9a416b5
JH		 716
717 if (conn->connect_cfm_cb)
718 conn->connect_cfm_cb(conn, status);
1da177e4
LT		 719}
720
2950f21a 721static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4 722{
686ebf28
UF		 723 if (conn->type != ACL_LINK && conn->type != LE_LINK)
724 return HCI_ERROR_REMOTE_USER_TERM;
1da177e4 725
686ebf28 726 return l2cap_disconn_ind(conn);
2950f21a
MH		 727}
728
729static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
730{
686ebf28
UF		 731 switch (conn->type) {
732 case ACL_LINK:
733 case LE_LINK:
734 l2cap_disconn_cfm(conn, reason);
735 break;
2950f21a 736
686ebf28
UF		 737 case SCO_LINK:
738 case ESCO_LINK:
739 sco_disconn_cfm(conn, reason);
740 break;
2950f21a 741
686ebf28
UF		 742 default:
743 BT_ERR("unknown link type %d", conn->type);
744 break;
745 }
e9a416b5
JH		 746
747 if (conn->disconn_cfm_cb)
748 conn->disconn_cfm_cb(conn, reason);
1da177e4
LT		 749}
750
751static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
752{
8c1b2355
MH		 753 __u8 encrypt;
754
686ebf28
UF		 755 if (conn->type != ACL_LINK && conn->type != LE_LINK)
756 return;
757
8c1b2355
MH		 758 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
759 return;
760
761 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
686ebf28 762 l2cap_security_cfm(conn, status, encrypt);
e9a416b5
JH		 763
764 if (conn->security_cfm_cb)
765 conn->security_cfm_cb(conn, status);
1da177e4
LT		 766}
767
5a9d0a3f
WR		 768static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
769 __u8 encrypt)
1da177e4 770{
686ebf28
UF		 771 if (conn->type != ACL_LINK && conn->type != LE_LINK)
772 return;
1da177e4 773
686ebf28 774 l2cap_security_cfm(conn, status, encrypt);
e9a416b5
JH		 775
776 if (conn->security_cfm_cb)
777 conn->security_cfm_cb(conn, status);
1da177e4
LT		 778}
779
1da177e4
LT		 780/* ----- HCI callbacks ----- */
781struct hci_cb {
782 struct list_head list;
783
784 char *name;
785
5a9d0a3f
WR		 786 void (*security_cfm) (struct hci_conn *conn, __u8 status,
787 __u8 encrypt);
1da177e4
LT		 788 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
789 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
790};
791
792static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
793{
794 struct list_head *p;
8c1b2355 795 __u8 encrypt;
1da177e4
LT		 796
797 hci_proto_auth_cfm(conn, status);
798
8c1b2355
MH		 799 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
800 return;
801
802 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
803
1da177e4
LT		 804 read_lock_bh(&hci_cb_list_lock);
805 list_for_each(p, &hci_cb_list) {
806 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 807 if (cb->security_cfm)
808 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 809 }
810 read_unlock_bh(&hci_cb_list_lock);
811}
812
5a9d0a3f
WR		 813static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
814 __u8 encrypt)
1da177e4
LT		 815{
816 struct list_head *p;
817
435fef20
MH		 818 if (conn->sec_level == BT_SECURITY_SDP)
819 conn->sec_level = BT_SECURITY_LOW;
820
88167aed
VCG		 821 if (conn->pending_sec_level > conn->sec_level)
822 conn->sec_level = conn->pending_sec_level;
823
9719f8af 824 hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4
LT		 825
826 read_lock_bh(&hci_cb_list_lock);
827 list_for_each(p, &hci_cb_list) {
828 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 829 if (cb->security_cfm)
830 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 831 }
832 read_unlock_bh(&hci_cb_list_lock);
833}
834
835static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
836{
837 struct list_head *p;
838
839 read_lock_bh(&hci_cb_list_lock);
840 list_for_each(p, &hci_cb_list) {
841 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
842 if (cb->key_change_cfm)
843 cb->key_change_cfm(conn, status);
844 }
845 read_unlock_bh(&hci_cb_list_lock);
846}
847
5a9d0a3f
WR		 848static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
849 __u8 role)
1da177e4
LT		 850{
851 struct list_head *p;
852
853 read_lock_bh(&hci_cb_list_lock);
854 list_for_each(p, &hci_cb_list) {
855 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
856 if (cb->role_switch_cfm)
857 cb->role_switch_cfm(conn, status, role);
858 }
859 read_unlock_bh(&hci_cb_list_lock);
860}
861
862int hci_register_cb(struct hci_cb *hcb);
863int hci_unregister_cb(struct hci_cb *hcb);
864
865int hci_register_notifier(struct notifier_block *nb);
866int hci_unregister_notifier(struct notifier_block *nb);
867
a9de9248 868int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
73d80deb 869void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
0d861d8b 870void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1da177e4 871
a9de9248 872void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1da177e4
LT		 873
874void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
875
876/* ----- HCI Sockets ----- */
eec8d2bc
JH		 877void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
878 struct sock *skip_sk);
1da177e4 879
0381101f
JH		 880/* Management interface */
881int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
744cf19e
JH		 882int mgmt_index_added(struct hci_dev *hdev);
883int mgmt_index_removed(struct hci_dev *hdev);
884int mgmt_powered(struct hci_dev *hdev, u8 powered);
885int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
886int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
887int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
888int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
889 u8 persistent);
48264f06
JH		 890int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
891 u8 addr_type);
892int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
893 u8 addr_type);
37d9ef76 894int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
48264f06
JH		 895int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
896 u8 addr_type, u8 status);
744cf19e
JH		 897int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
898int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
c35938b2 899 u8 status);
744cf19e
JH		 900int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
901 u8 status);
902int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
903 __le32 value, u8 confirm_hint);
904int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
905 u8 status);
906int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
907 bdaddr_t *bdaddr, u8 status);
604086b7
BG		 908int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr);
909int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
910 u8 status);
911int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,
912 bdaddr_t *bdaddr, u8 status);
744cf19e
JH		 913int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
914int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
915int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
916 u8 *randomizer, u8 status);
48264f06
JH		 917int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
918 u8 addr_type, u8 *dev_class, s8 rssi, u8 *eir);
744cf19e 919int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name);
7a135109 920int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
e6d465cb 921int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
744cf19e
JH		 922int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
923int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
924int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
0381101f 925
1da177e4
LT		 926/* HCI info for socket */
927#define hci_pi(sk) ((struct hci_pinfo *) sk)
928
14c0b608
JH		 929/* HCI socket flags */
930#define HCI_PI_MGMT_INIT 0
931
1da177e4
LT		 932struct hci_pinfo {
933 struct bt_sock bt;
934 struct hci_dev *hdev;
935 struct hci_filter filter;
936 __u32 cmsg_mask;
c02178d2 937 unsigned short channel;
14c0b608 938 unsigned long flags;
1da177e4
LT		 939};
940
941/* HCI security filter */
942#define HCI_SFLT_MAX_OGF 5
943
944struct hci_sec_filter {
945 __u32 type_mask;
946 __u32 event_mask[2];
947 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
948};
949
950/* ----- HCI requests ----- */
951#define HCI_REQ_DONE 0
952#define HCI_REQ_PEND 1
953#define HCI_REQ_CANCELED 2
954
a6a67efd
TG		 955#define hci_req_lock(d) mutex_lock(&d->req_lock)
956#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 957
23bb5763 958void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1da177e4 959
2ce603eb
CT		 960void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
961 u16 latency, u16 to_multiplier);
a7a595f6
VCG		 962void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
963 __u8 ltk[16]);
964void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
965void hci_le_ltk_neg_reply(struct hci_conn *conn);
966
2519a1fc 967int hci_do_inquiry(struct hci_dev *hdev, u8 length);
023d5049 968int hci_cancel_inquiry(struct hci_dev *hdev);
2519a1fc 969
1da177e4 970#endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)