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Bluetooth: Remove hci_dev->driver_data
[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 {
561aafbc
JH		 47 struct list_head all; /* inq_cache.all */
48 struct list_head list; /* unknown or resolve */
49 enum {
50 NAME_NOT_KNOWN,
51 NAME_NEEDED,
52 NAME_PENDING,
53 NAME_KNOWN,
54 } name_state;
1da177e4
LT		 55 __u32 timestamp;
56 struct inquiry_data data;
57};
58
30883512 59struct discovery_state {
ff9ef578
JH		 60 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
30dc78e1 63 DISCOVERY_INQUIRY,
c599008f 64 DISCOVERY_LE_SCAN,
30dc78e1 65 DISCOVERY_RESOLVING,
ff9ef578
JH		 66 DISCOVERY_STOPPING,
67 } state;
561aafbc
JH		 68 struct list_head all; /* All devices found during inquiry */
69 struct list_head unknown; /* Name state not known */
70 struct list_head resolve; /* Name needs to be resolved */
71 __u32 timestamp;
1da177e4
LT		 72};
73
74struct hci_conn_hash {
75 struct list_head list;
1da177e4
LT		 76 unsigned int acl_num;
77 unsigned int sco_num;
fcd89c09 78 unsigned int le_num;
1da177e4
LT		 79};
80
f0358568
JH		 81struct bdaddr_list {
82 struct list_head list;
83 bdaddr_t bdaddr;
84};
2aeb9a1a
JH		 85
86struct bt_uuid {
87 struct list_head list;
88 u8 uuid[16];
1aff6f09 89 u8 svc_hint;
2aeb9a1a
JH		 90};
91
b899efaf
VCG		 92struct smp_ltk {
93 struct list_head list;
94 bdaddr_t bdaddr;
95 u8 bdaddr_type;
96 u8 authenticated;
97 u8 type;
98 u8 enc_size;
99 __le16 ediv;
100 u8 rand[8];
101 u8 val[16];
102} __packed;
103
55ed8ca1
JH		 104struct link_key {
105 struct list_head list;
106 bdaddr_t bdaddr;
107 u8 type;
108 u8 val[16];
109 u8 pin_len;
110};
111
2763eda6
SJ		 112struct oob_data {
113 struct list_head list;
114 bdaddr_t bdaddr;
115 u8 hash[16];
116 u8 randomizer[16];
117};
118
76c8686f
AG		 119struct adv_entry {
120 struct list_head list;
121 bdaddr_t bdaddr;
122 u8 bdaddr_type;
123};
124
7ba8b4be
AG		 125struct le_scan_params {
126 u8 type;
127 u16 interval;
128 u16 window;
28b75a89 129 int timeout;
7ba8b4be
AG		 130};
131
cd4c5391 132#define NUM_REASSEMBLY 4
1da177e4
LT		 133struct hci_dev {
134 struct list_head list;
09fd0de5 135 struct mutex lock;
1da177e4
LT		 136
137 char name[8];
138 unsigned long flags;
139 __u16 id;
c13854ce 140 __u8 bus;
943da25d 141 __u8 dev_type;
1da177e4 142 bdaddr_t bdaddr;
1f6c6378 143 __u8 dev_name[HCI_MAX_NAME_LENGTH];
80a1e1db 144 __u8 eir[HCI_MAX_EIR_LENGTH];
a9de9248 145 __u8 dev_class[3];
1aff6f09
JH		 146 __u8 major_class;
147 __u8 minor_class;
1da177e4 148 __u8 features[8];
59e29406 149 __u8 host_features[8];
a9de9248 150 __u8 commands[64];
1143e5a6
MH		 151 __u8 hci_ver;
152 __u16 hci_rev;
d5859e22 153 __u8 lmp_ver;
1143e5a6 154 __u16 manufacturer;
d5859e22 155 __le16 lmp_subver;
1da177e4 156 __u16 voice_setting;
17fa4b9d 157 __u8 io_capability;
1da177e4
LT		 158
159 __u16 pkt_type;
5b7f9909 160 __u16 esco_type;
1da177e4
LT		 161 __u16 link_policy;
162 __u16 link_mode;
163
04837f64
MH		 164 __u32 idle_timeout;
165 __u16 sniff_min_interval;
166 __u16 sniff_max_interval;
167
928abaa7
AE		 168 __u8 amp_status;
169 __u32 amp_total_bw;
170 __u32 amp_max_bw;
171 __u32 amp_min_latency;
172 __u32 amp_max_pdu;
173 __u8 amp_type;
174 __u16 amp_pal_cap;
175 __u16 amp_assoc_size;
176 __u32 amp_max_flush_to;
177 __u32 amp_be_flush_to;
178
1e89cffb
AE		 179 __u8 flow_ctl_mode;
180
9f61656a
JH		 181 unsigned int auto_accept_delay;
182
1da177e4
LT		 183 unsigned long quirks;
184
185 atomic_t cmd_cnt;
186 unsigned int acl_cnt;
187 unsigned int sco_cnt;
6ed58ec5 188 unsigned int le_cnt;
1da177e4
LT		 189
190 unsigned int acl_mtu;
191 unsigned int sco_mtu;
6ed58ec5 192 unsigned int le_mtu;
1da177e4
LT		 193 unsigned int acl_pkts;
194 unsigned int sco_pkts;
6ed58ec5 195 unsigned int le_pkts;
1da177e4 196
350ee4cf
AE		 197 __u16 block_len;
198 __u16 block_mtu;
199 __u16 num_blocks;
200 __u16 block_cnt;
201
1da177e4
LT		 202 unsigned long acl_last_tx;
203 unsigned long sco_last_tx;
6ed58ec5 204 unsigned long le_last_tx;
1da177e4 205
f48fd9c8
MH		 206 struct workqueue_struct *workqueue;
207
ab81cbf9 208 struct work_struct power_on;
3243553f 209 struct delayed_work power_off;
ab81cbf9 210
16ab91ab
JH		 211 __u16 discov_timeout;
212 struct delayed_work discov_off;
213
7d78525d
JH		 214 struct delayed_work service_cache;
215
6bd32326 216 struct timer_list cmd_timer;
b78752cc
MH		 217
218 struct work_struct rx_work;
c347b765 219 struct work_struct cmd_work;
3eff45ea 220 struct work_struct tx_work;
1da177e4
LT		 221
222 struct sk_buff_head rx_q;
223 struct sk_buff_head raw_q;
224 struct sk_buff_head cmd_q;
225
226 struct sk_buff *sent_cmd;
cd4c5391 227 struct sk_buff *reassembly[NUM_REASSEMBLY];
1da177e4 228
a6a67efd 229 struct mutex req_lock;
1da177e4
LT		 230 wait_queue_head_t req_wait_q;
231 __u32 req_status;
232 __u32 req_result;
a5040efa
JH		 233
234 __u16 init_last_cmd;
1da177e4 235
2e58ef3e
JH		 236 struct list_head mgmt_pending;
237
30883512 238 struct discovery_state discovery;
1da177e4 239 struct hci_conn_hash conn_hash;
ea4bd8ba 240 struct list_head blacklist;
1da177e4 241
2aeb9a1a
JH		 242 struct list_head uuids;
243
55ed8ca1
JH		 244 struct list_head link_keys;
245
b899efaf
VCG		 246 struct list_head long_term_keys;
247
2763eda6
SJ		 248 struct list_head remote_oob_data;
249
76c8686f 250 struct list_head adv_entries;
db323f2f 251 struct delayed_work adv_work;
76c8686f 252
1da177e4
LT		 253 struct hci_dev_stats stat;
254
255 struct sk_buff_head driver_init;
256
1da177e4
LT		 257 void *core_data;
258
70f23020 259 atomic_t promisc;
1da177e4 260
ca325f69
MH		 261 struct dentry *debugfs;
262
a91f2e39
MH		 263 struct device *parent;
264 struct device dev;
1da177e4 265
611b30f7
MH		 266 struct rfkill *rfkill;
267
d23264a8
AG		 268 unsigned long dev_flags;
269
7ba8b4be
AG		 270 struct delayed_work le_scan_disable;
271
28b75a89
AG		 272 struct work_struct le_scan;
273 struct le_scan_params le_scan_params;
274
1da177e4
LT		 275 int (*open)(struct hci_dev *hdev);
276 int (*close)(struct hci_dev *hdev);
277 int (*flush)(struct hci_dev *hdev);
278 int (*send)(struct sk_buff *skb);
1da177e4
LT		 279 void (*notify)(struct hci_dev *hdev, unsigned int evt);
280 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
281};
282
283struct hci_conn {
284 struct list_head list;
285
adc4266d 286 atomic_t refcnt;
adc4266d
SJ		 287
288 bdaddr_t dst;
5a9d0a3f 289 __u8 dst_type;
adc4266d
SJ		 290 __u16 handle;
291 __u16 state;
292 __u8 mode;
293 __u8 type;
a0c808b3 294 bool out;
adc4266d
SJ		 295 __u8 attempt;
296 __u8 dev_class[3];
297 __u8 features[8];
adc4266d
SJ		 298 __u16 interval;
299 __u16 pkt_type;
300 __u16 link_policy;
301 __u32 link_mode;
13d39315 302 __u8 key_type;
adc4266d
SJ		 303 __u8 auth_type;
304 __u8 sec_level;
305 __u8 pending_sec_level;
306 __u8 pin_length;
726b4ffc 307 __u8 enc_key_size;
adc4266d 308 __u8 io_capability;
adc4266d 309 __u16 disc_timeout;
51a8efd7 310 unsigned long flags;
04837f64 311
03b555e1 312 __u8 remote_cap;
03b555e1
JH		 313 __u8 remote_auth;
314
adc4266d 315 unsigned int sent;
04837f64 316
1da177e4 317 struct sk_buff_head data_q;
2c33c06a 318 struct list_head chan_list;
1da177e4 319
19c40e3b 320 struct delayed_work disc_work;
04837f64 321 struct timer_list idle_timer;
9f61656a 322 struct timer_list auto_accept_timer;
04837f64 323
b219e3ac 324 struct device dev;
9eba32b8 325 atomic_t devref;
b219e3ac 326
1da177e4
LT		 327 struct hci_dev *hdev;
328 void *l2cap_data;
329 void *sco_data;
2b64d153 330 void *smp_conn;
1da177e4
LT		 331
332 struct hci_conn *link;
e9a416b5
JH		 333
334 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
335 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
336 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
1da177e4
LT		 337};
338
73d80deb
LAD		 339struct hci_chan {
340 struct list_head list;
341
342 struct hci_conn *conn;
343 struct sk_buff_head data_q;
344 unsigned int sent;
345};
346
1da177e4
LT		 347extern struct list_head hci_dev_list;
348extern struct list_head hci_cb_list;
349extern rwlock_t hci_dev_list_lock;
350extern rwlock_t hci_cb_list_lock;
351
686ebf28
UF		 352/* ----- HCI interface to upper protocols ----- */
353extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
354extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
355extern int l2cap_disconn_ind(struct hci_conn *hcon);
356extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
357extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
358extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
359
360extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
361extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
362extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
363extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
364
1da177e4 365/* ----- Inquiry cache ----- */
70f23020
AE		 366#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
367#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
1da177e4 368
30883512 369static inline void discovery_init(struct hci_dev *hdev)
1da177e4 370{
ff9ef578 371 hdev->discovery.state = DISCOVERY_STOPPED;
30883512
JH		 372 INIT_LIST_HEAD(&hdev->discovery.all);
373 INIT_LIST_HEAD(&hdev->discovery.unknown);
374 INIT_LIST_HEAD(&hdev->discovery.resolve);
1da177e4
LT		 375}
376
30dc78e1
JH		 377bool hci_discovery_active(struct hci_dev *hdev);
378
ff9ef578
JH		 379void hci_discovery_set_state(struct hci_dev *hdev, int state);
380
1da177e4
LT		 381static inline int inquiry_cache_empty(struct hci_dev *hdev)
382{
30883512 383 return list_empty(&hdev->discovery.all);
1da177e4
LT		 384}
385
386static inline long inquiry_cache_age(struct hci_dev *hdev)
387{
30883512 388 struct discovery_state *c = &hdev->discovery;
1da177e4
LT		 389 return jiffies - c->timestamp;
390}
391
392static inline long inquiry_entry_age(struct inquiry_entry *e)
393{
394 return jiffies - e->timestamp;
395}
396
5a9d0a3f
WR		 397struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
398 bdaddr_t *bdaddr);
561aafbc
JH		 399struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
400 bdaddr_t *bdaddr);
30dc78e1
JH		 401struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
402 bdaddr_t *bdaddr,
403 int state);
a3d4e20a
JH		 404void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
405 struct inquiry_entry *ie);
3175405b 406bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
561aafbc 407 bool name_known);
1da177e4
LT		 408
409/* ----- HCI Connections ----- */
410enum {
411 HCI_CONN_AUTH_PEND,
19f8def0 412 HCI_CONN_REAUTH_PEND,
1da177e4 413 HCI_CONN_ENCRYPT_PEND,
04837f64
MH		 414 HCI_CONN_RSWITCH_PEND,
415 HCI_CONN_MODE_CHANGE_PEND,
e73439d8 416 HCI_CONN_SCO_SETUP_PEND,
d26a2345 417 HCI_CONN_LE_SMP_PEND,
b644ba33 418 HCI_CONN_MGMT_CONNECTED,
58a681ef
JH		 419 HCI_CONN_SSP_ENABLED,
420 HCI_CONN_POWER_SAVE,
421 HCI_CONN_REMOTE_OOB,
1da177e4
LT		 422};
423
aa64a8b5
JH		 424static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
425{
426 struct hci_dev *hdev = conn->hdev;
427 return (test_bit(HCI_SSP_ENABLED, &hdev->flags) &&
428 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags));
429}
430
1da177e4
LT		 431static inline void hci_conn_hash_init(struct hci_dev *hdev)
432{
433 struct hci_conn_hash *h = &hdev->conn_hash;
434 INIT_LIST_HEAD(&h->list);
1da177e4
LT		 435 h->acl_num = 0;
436 h->sco_num = 0;
dc8ed672 437 h->le_num = 0;
1da177e4
LT		 438}
439
440static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
441{
442 struct hci_conn_hash *h = &hdev->conn_hash;
bf4c6325 443 list_add_rcu(&c->list, &h->list);
fcd89c09
VT		 444 switch (c->type) {
445 case ACL_LINK:
1da177e4 446 h->acl_num++;
fcd89c09
VT		 447 break;
448 case LE_LINK:
449 h->le_num++;
450 break;
451 case SCO_LINK:
452 case ESCO_LINK:
1da177e4 453 h->sco_num++;
fcd89c09
VT		 454 break;
455 }
1da177e4
LT		 456}
457
458static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
459{
460 struct hci_conn_hash *h = &hdev->conn_hash;
bf4c6325
GP		 461
462 list_del_rcu(&c->list);
463 synchronize_rcu();
464
fcd89c09
VT		 465 switch (c->type) {
466 case ACL_LINK:
1da177e4 467 h->acl_num--;
fcd89c09
VT		 468 break;
469 case LE_LINK:
470 h->le_num--;
471 break;
472 case SCO_LINK:
473 case ESCO_LINK:
1da177e4 474 h->sco_num--;
fcd89c09
VT		 475 break;
476 }
1da177e4
LT		 477}
478
52087a79
LAD		 479static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
480{
481 struct hci_conn_hash *h = &hdev->conn_hash;
482 switch (type) {
483 case ACL_LINK:
484 return h->acl_num;
485 case LE_LINK:
486 return h->le_num;
487 case SCO_LINK:
488 case ESCO_LINK:
489 return h->sco_num;
490 default:
491 return 0;
492 }
493}
494
1da177e4 495static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
adc4266d 496 __u16 handle)
1da177e4
LT		 497{
498 struct hci_conn_hash *h = &hdev->conn_hash;
1da177e4
LT		 499 struct hci_conn *c;
500
bf4c6325
GP		 501 rcu_read_lock();
502
503 list_for_each_entry_rcu(c, &h->list, list) {
504 if (c->handle == handle) {
505 rcu_read_unlock();
1da177e4 506 return c;
bf4c6325 507 }
1da177e4 508 }
bf4c6325
GP		 509 rcu_read_unlock();
510
1da177e4
LT		 511 return NULL;
512}
513
514static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
adc4266d 515 __u8 type, bdaddr_t *ba)
1da177e4
LT		 516{
517 struct hci_conn_hash *h = &hdev->conn_hash;
1da177e4
LT		 518 struct hci_conn *c;
519
bf4c6325
GP		 520 rcu_read_lock();
521
522 list_for_each_entry_rcu(c, &h->list, list) {
523 if (c->type == type && !bacmp(&c->dst, ba)) {
524 rcu_read_unlock();
1da177e4 525 return c;
bf4c6325 526 }
1da177e4 527 }
bf4c6325
GP		 528
529 rcu_read_unlock();
530
1da177e4
LT		 531 return NULL;
532}
533
4c67bc74 534static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
adc4266d 535 __u8 type, __u16 state)
4c67bc74
MH		 536{
537 struct hci_conn_hash *h = &hdev->conn_hash;
4c67bc74
MH		 538 struct hci_conn *c;
539
bf4c6325
GP		 540 rcu_read_lock();
541
542 list_for_each_entry_rcu(c, &h->list, list) {
543 if (c->type == type && c->state == state) {
544 rcu_read_unlock();
4c67bc74 545 return c;
bf4c6325 546 }
4c67bc74 547 }
73d80deb 548
bf4c6325 549 rcu_read_unlock();
73d80deb 550
4c67bc74 551 return NULL;
73d80deb
LAD		 552}
553
4c67bc74 554void hci_acl_connect(struct hci_conn *conn);
1da177e4
LT		 555void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
556void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82 557void hci_setup_sync(struct hci_conn *conn, __u16 handle);
e73439d8 558void hci_sco_setup(struct hci_conn *conn, __u8 status);
1da177e4
LT		 559
560struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
a9de9248
MH		 561int hci_conn_del(struct hci_conn *conn);
562void hci_conn_hash_flush(struct hci_dev *hdev);
563void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4 564
73d80deb
LAD		 565struct hci_chan *hci_chan_create(struct hci_conn *conn);
566int hci_chan_del(struct hci_chan *chan);
2c33c06a 567void hci_chan_list_flush(struct hci_conn *conn);
73d80deb 568
5a9d0a3f
WR		 569struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
570 __u8 sec_level, __u8 auth_type);
e7c29cb1 571int hci_conn_check_link_mode(struct hci_conn *conn);
b3b1b061 572int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
0684e5f9 573int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4 574int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355 575int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4 576
14b12d0b 577void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1da177e4 578
9eba32b8
MH		 579void hci_conn_hold_device(struct hci_conn *conn);
580void hci_conn_put_device(struct hci_conn *conn);
581
1da177e4
LT		 582static inline void hci_conn_hold(struct hci_conn *conn)
583{
584 atomic_inc(&conn->refcnt);
2f304d1e 585 cancel_delayed_work(&conn->disc_work);
1da177e4
LT		 586}
587
588static inline void hci_conn_put(struct hci_conn *conn)
589{
590 if (atomic_dec_and_test(&conn->refcnt)) {
04837f64 591 unsigned long timeo;
454d48ff 592 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
04837f64 593 del_timer(&conn->idle_timer);
6ac59344 594 if (conn->state == BT_CONNECTED) {
052b30b0 595 timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344 596 if (!conn->out)
052b30b0 597 timeo *= 2;
5a9d0a3f 598 } else {
6ac59344 599 timeo = msecs_to_jiffies(10);
5a9d0a3f
WR		 600 }
601 } else {
04837f64 602 timeo = msecs_to_jiffies(10);
5a9d0a3f 603 }
2f304d1e 604 cancel_delayed_work(&conn->disc_work);
19c40e3b 605 queue_delayed_work(conn->hdev->workqueue,
1931782b 606 &conn->disc_work, timeo);
1da177e4
LT		 607 }
608}
609
1da177e4 610/* ----- HCI Devices ----- */
dc946bd8 611static inline void hci_dev_put(struct hci_dev *d)
1da177e4 612{
4c724c71 613 put_device(&d->dev);
1da177e4
LT		 614}
615
dc946bd8 616static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1da177e4 617{
4c724c71 618 get_device(&d->dev);
1da177e4
LT		 619 return d;
620}
621
09fd0de5
GP		 622#define hci_dev_lock(d) mutex_lock(&d->lock)
623#define hci_dev_unlock(d) mutex_unlock(&d->lock)
1da177e4 624
aa2b86d7
DH		 625#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
626
155961e8
DH		 627static inline void *hci_get_drvdata(struct hci_dev *hdev)
628{
629 return dev_get_drvdata(&hdev->dev);
630}
631
632static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
633{
634 dev_set_drvdata(&hdev->dev, data);
635}
636
1da177e4
LT		 637struct hci_dev *hci_dev_get(int index);
638struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
639
640struct hci_dev *hci_alloc_dev(void);
641void hci_free_dev(struct hci_dev *hdev);
642int hci_register_dev(struct hci_dev *hdev);
59735631 643void hci_unregister_dev(struct hci_dev *hdev);
1da177e4
LT		 644int hci_suspend_dev(struct hci_dev *hdev);
645int hci_resume_dev(struct hci_dev *hdev);
646int hci_dev_open(__u16 dev);
647int hci_dev_close(__u16 dev);
648int hci_dev_reset(__u16 dev);
649int hci_dev_reset_stat(__u16 dev);
650int hci_dev_cmd(unsigned int cmd, void __user *arg);
651int hci_get_dev_list(void __user *arg);
652int hci_get_dev_info(void __user *arg);
653int hci_get_conn_list(void __user *arg);
654int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
40be492f 655int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1da177e4
LT		 656int hci_inquiry(void __user *arg);
657
f0358568
JH		 658struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
659int hci_blacklist_clear(struct hci_dev *hdev);
88c1fe4b
JH		 660int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
661int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
f0358568 662
2aeb9a1a
JH		 663int hci_uuids_clear(struct hci_dev *hdev);
664
55ed8ca1
JH		 665int hci_link_keys_clear(struct hci_dev *hdev);
666struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
d25e28ab
JH		 667int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
668 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
c9839a11
VCG		 669struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
670int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
671 int new_key, u8 authenticated, u8 tk[16],
672 u8 enc_size, u16 ediv, u8 rand[8]);
673struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
674 u8 addr_type);
b899efaf 675int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
b899efaf 676int hci_smp_ltks_clear(struct hci_dev *hdev);
55ed8ca1
JH		 677int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
678
2763eda6
SJ		 679int hci_remote_oob_data_clear(struct hci_dev *hdev);
680struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
681 bdaddr_t *bdaddr);
682int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
683 u8 *randomizer);
684int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
685
35815085 686#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
76c8686f
AG		 687int hci_adv_entries_clear(struct hci_dev *hdev);
688struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
689int hci_add_adv_entry(struct hci_dev *hdev,
690 struct hci_ev_le_advertising_info *ev);
691
ab81cbf9
JH		 692void hci_del_off_timer(struct hci_dev *hdev);
693
1da177e4
LT		 694void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
695
76bca880 696int hci_recv_frame(struct sk_buff *skb);
ef222013 697int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
99811510 698int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
ef222013 699
0ac7e700 700void hci_init_sysfs(struct hci_dev *hdev);
ce242970
DH		 701int hci_add_sysfs(struct hci_dev *hdev);
702void hci_del_sysfs(struct hci_dev *hdev);
a67e899c 703void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac
MH		 704void hci_conn_add_sysfs(struct hci_conn *conn);
705void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4 706
a91f2e39 707#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4
LT		 708
709/* ----- LMP capabilities ----- */
04837f64
MH		 710#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
711#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
712#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
713#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909 714#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974 715#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
e702112f 716#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
6ed58ec5 717#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
1da177e4 718
eead27da 719/* ----- Extended LMP capabilities ----- */
59e29406 720#define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
eead27da 721
1da177e4 722/* ----- HCI protocols ----- */
5a9d0a3f
WR		 723static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
724 __u8 type)
1da177e4 725{
686ebf28
UF		 726 switch (type) {
727 case ACL_LINK:
728 return l2cap_connect_ind(hdev, bdaddr);
1da177e4 729
686ebf28
UF		 730 case SCO_LINK:
731 case ESCO_LINK:
732 return sco_connect_ind(hdev, bdaddr);
1da177e4 733
686ebf28
UF		 734 default:
735 BT_ERR("unknown link type %d", type);
736 return -EINVAL;
737 }
1da177e4
LT		 738}
739
740static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
741{
686ebf28
UF		 742 switch (conn->type) {
743 case ACL_LINK:
744 case LE_LINK:
745 l2cap_connect_cfm(conn, status);
746 break;
1da177e4 747
686ebf28
UF		 748 case SCO_LINK:
749 case ESCO_LINK:
750 sco_connect_cfm(conn, status);
751 break;
1da177e4 752
686ebf28
UF		 753 default:
754 BT_ERR("unknown link type %d", conn->type);
755 break;
756 }
e9a416b5
JH		 757
758 if (conn->connect_cfm_cb)
759 conn->connect_cfm_cb(conn, status);
1da177e4
LT		 760}
761
2950f21a 762static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4 763{
686ebf28
UF		 764 if (conn->type != ACL_LINK && conn->type != LE_LINK)
765 return HCI_ERROR_REMOTE_USER_TERM;
1da177e4 766
686ebf28 767 return l2cap_disconn_ind(conn);
2950f21a
MH		 768}
769
770static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
771{
686ebf28
UF		 772 switch (conn->type) {
773 case ACL_LINK:
774 case LE_LINK:
775 l2cap_disconn_cfm(conn, reason);
776 break;
2950f21a 777
686ebf28
UF		 778 case SCO_LINK:
779 case ESCO_LINK:
780 sco_disconn_cfm(conn, reason);
781 break;
2950f21a 782
686ebf28
UF		 783 default:
784 BT_ERR("unknown link type %d", conn->type);
785 break;
786 }
e9a416b5
JH		 787
788 if (conn->disconn_cfm_cb)
789 conn->disconn_cfm_cb(conn, reason);
1da177e4
LT		 790}
791
792static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
793{
8c1b2355
MH		 794 __u8 encrypt;
795
686ebf28
UF		 796 if (conn->type != ACL_LINK && conn->type != LE_LINK)
797 return;
798
51a8efd7 799 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
8c1b2355
MH		 800 return;
801
802 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
686ebf28 803 l2cap_security_cfm(conn, status, encrypt);
e9a416b5
JH		 804
805 if (conn->security_cfm_cb)
806 conn->security_cfm_cb(conn, status);
1da177e4
LT		 807}
808
5a9d0a3f
WR		 809static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
810 __u8 encrypt)
1da177e4 811{
686ebf28
UF		 812 if (conn->type != ACL_LINK && conn->type != LE_LINK)
813 return;
1da177e4 814
686ebf28 815 l2cap_security_cfm(conn, status, encrypt);
e9a416b5
JH		 816
817 if (conn->security_cfm_cb)
818 conn->security_cfm_cb(conn, status);
1da177e4
LT		 819}
820
1da177e4
LT		 821/* ----- HCI callbacks ----- */
822struct hci_cb {
823 struct list_head list;
824
825 char *name;
826
5a9d0a3f
WR		 827 void (*security_cfm) (struct hci_conn *conn, __u8 status,
828 __u8 encrypt);
1da177e4
LT		 829 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
830 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
831};
832
833static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
834{
835 struct list_head *p;
8c1b2355 836 __u8 encrypt;
1da177e4
LT		 837
838 hci_proto_auth_cfm(conn, status);
839
51a8efd7 840 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
8c1b2355
MH		 841 return;
842
843 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
844
f20d09d5 845 read_lock(&hci_cb_list_lock);
1da177e4
LT		 846 list_for_each(p, &hci_cb_list) {
847 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 848 if (cb->security_cfm)
849 cb->security_cfm(conn, status, encrypt);
1da177e4 850 }
f20d09d5 851 read_unlock(&hci_cb_list_lock);
1da177e4
LT		 852}
853
5a9d0a3f
WR		 854static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
855 __u8 encrypt)
1da177e4
LT		 856{
857 struct list_head *p;
858
435fef20
MH		 859 if (conn->sec_level == BT_SECURITY_SDP)
860 conn->sec_level = BT_SECURITY_LOW;
861
88167aed
VCG		 862 if (conn->pending_sec_level > conn->sec_level)
863 conn->sec_level = conn->pending_sec_level;
864
9719f8af 865 hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4 866
f20d09d5 867 read_lock(&hci_cb_list_lock);
1da177e4
LT		 868 list_for_each(p, &hci_cb_list) {
869 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 870 if (cb->security_cfm)
871 cb->security_cfm(conn, status, encrypt);
1da177e4 872 }
f20d09d5 873 read_unlock(&hci_cb_list_lock);
1da177e4
LT		 874}
875
876static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
877{
878 struct list_head *p;
879
f20d09d5 880 read_lock(&hci_cb_list_lock);
1da177e4
LT		 881 list_for_each(p, &hci_cb_list) {
882 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
883 if (cb->key_change_cfm)
884 cb->key_change_cfm(conn, status);
885 }
f20d09d5 886 read_unlock(&hci_cb_list_lock);
1da177e4
LT		 887}
888
5a9d0a3f
WR		 889static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
890 __u8 role)
1da177e4
LT		 891{
892 struct list_head *p;
893
f20d09d5 894 read_lock(&hci_cb_list_lock);
1da177e4
LT		 895 list_for_each(p, &hci_cb_list) {
896 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
897 if (cb->role_switch_cfm)
898 cb->role_switch_cfm(conn, status, role);
899 }
f20d09d5 900 read_unlock(&hci_cb_list_lock);
1da177e4
LT		 901}
902
6759a675
JH		 903static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
904{
905 u8 field_len;
906 size_t parsed;
907
908 for (parsed = 0; parsed < data_len - 1; parsed += field_len) {
909 field_len = data[0];
910
911 if (field_len == 0)
912 break;
913
914 parsed += field_len + 1;
915
916 if (parsed > data_len)
917 break;
918
919 if (data[1] == type)
920 return true;
921
922 data += field_len + 1;
923 }
924
925 return false;
926}
927
1dc06093
JH		 928static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
929 u8 data_len)
930{
931 eir[eir_len++] = sizeof(type) + data_len;
932 eir[eir_len++] = type;
933 memcpy(&eir[eir_len], data, data_len);
934 eir_len += data_len;
935
936 return eir_len;
937}
938
1da177e4
LT		 939int hci_register_cb(struct hci_cb *hcb);
940int hci_unregister_cb(struct hci_cb *hcb);
941
942int hci_register_notifier(struct notifier_block *nb);
943int hci_unregister_notifier(struct notifier_block *nb);
944
a9de9248 945int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
73d80deb 946void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
0d861d8b 947void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1da177e4 948
a9de9248 949void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1da177e4
LT		 950
951void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
952
953/* ----- HCI Sockets ----- */
eec8d2bc
JH		 954void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
955 struct sock *skip_sk);
1da177e4 956
0381101f
JH		 957/* Management interface */
958int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
744cf19e
JH		 959int mgmt_index_added(struct hci_dev *hdev);
960int mgmt_index_removed(struct hci_dev *hdev);
961int mgmt_powered(struct hci_dev *hdev, u8 powered);
962int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
963int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
964int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
965int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
966 u8 persistent);
afc747a6 967int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
b644ba33
JH		 968 u8 addr_type, u8 *name, u8 name_len,
969 u8 *dev_class);
afc747a6
JH		 970int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
971 u8 link_type, u8 addr_type);
88c3df13
JH		 972int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
973 u8 link_type, u8 addr_type, u8 status);
48264f06
JH		 974int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
975 u8 addr_type, u8 status);
744cf19e
JH		 976int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
977int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
c35938b2 978 u8 status);
744cf19e
JH		 979int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
980 u8 status);
981int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
272d90df
JH		 982 u8 link_type, u8 addr_type, __le32 value,
983 u8 confirm_hint);
744cf19e 984int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
272d90df
JH		 985 u8 link_type, u8 addr_type, u8 status);
986int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
987 u8 link_type, u8 addr_type, u8 status);
988int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
989 u8 link_type, u8 addr_type);
604086b7 990int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
272d90df
JH		 991 u8 link_type, u8 addr_type, u8 status);
992int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
993 u8 link_type, u8 addr_type, u8 status);
bab73cb6
JH		 994int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
995 u8 addr_type, u8 status);
744cf19e
JH		 996int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
997int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
998 u8 *randomizer, u8 status);
48264f06 999int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
561aafbc 1000 u8 addr_type, u8 *dev_class, s8 rssi,
e319d2e7 1001 u8 cfm_name, u8 *eir, u16 eir_len);
b644ba33
JH		 1002int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1003 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
7a135109 1004int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
e6d465cb 1005int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
744cf19e 1006int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
88c1fe4b
JH		 1007int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1008int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
0381101f 1009
346af67b
VCG		 1010int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1011
1da177e4
LT		 1012/* HCI info for socket */
1013#define hci_pi(sk) ((struct hci_pinfo *) sk)
1014
14c0b608
JH		 1015/* HCI socket flags */
1016#define HCI_PI_MGMT_INIT 0
1017
1da177e4
LT		 1018struct hci_pinfo {
1019 struct bt_sock bt;
1020 struct hci_dev *hdev;
1021 struct hci_filter filter;
1022 __u32 cmsg_mask;
c02178d2 1023 unsigned short channel;
14c0b608 1024 unsigned long flags;
1da177e4
LT		 1025};
1026
1027/* HCI security filter */
1028#define HCI_SFLT_MAX_OGF 5
1029
1030struct hci_sec_filter {
1031 __u32 type_mask;
1032 __u32 event_mask[2];
1033 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1034};
1035
1036/* ----- HCI requests ----- */
1037#define HCI_REQ_DONE 0
1038#define HCI_REQ_PEND 1
1039#define HCI_REQ_CANCELED 2
1040
a6a67efd
TG		 1041#define hci_req_lock(d) mutex_lock(&d->req_lock)
1042#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 1043
23bb5763 1044void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1da177e4 1045
2ce603eb
CT		 1046void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1047 u16 latency, u16 to_multiplier);
a7a595f6
VCG		 1048void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1049 __u8 ltk[16]);
1050void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
1051void hci_le_ltk_neg_reply(struct hci_conn *conn);
1052
2519a1fc 1053int hci_do_inquiry(struct hci_dev *hdev, u8 length);
023d5049 1054int hci_cancel_inquiry(struct hci_dev *hdev);
28b75a89
AG		 1055int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1056 int timeout);
2519a1fc 1057
1da177e4 1058#endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)