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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / net / bluetooth / hci_core.h
1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
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
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 #ifndef __HCI_CORE_H
26 #define __HCI_CORE_H
27
28 #include <linux/interrupt.h>
29 #include <net/bluetooth/hci.h>
30
31 /* HCI priority */
32 #define HCI_PRIO_MAX 7
33
34 /* HCI Core structures */
35 struct 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];
41 __le16 clock_offset;
42 __s8 rssi;
43 __u8 ssp_mode;
44 };
45
46 struct inquiry_entry {
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;
55 __u32 timestamp;
56 struct inquiry_data data;
57 };
58
59 struct discovery_state {
60 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
63 DISCOVERY_INQUIRY,
64 DISCOVERY_RESOLVING,
65 DISCOVERY_STOPPING,
66 } state;
67 struct list_head all; /* All devices found during inquiry */
68 struct list_head unknown; /* Name state not known */
69 struct list_head resolve; /* Name needs to be resolved */
70 __u32 timestamp;
71 };
72
73 struct hci_conn_hash {
74 struct list_head list;
75 unsigned int acl_num;
76 unsigned int sco_num;
77 unsigned int le_num;
78 };
79
80 struct bdaddr_list {
81 struct list_head list;
82 bdaddr_t bdaddr;
83 };
84
85 struct bt_uuid {
86 struct list_head list;
87 u8 uuid[16];
88 u8 svc_hint;
89 };
90
91 struct smp_ltk {
92 struct list_head list;
93 bdaddr_t bdaddr;
94 u8 bdaddr_type;
95 u8 authenticated;
96 u8 type;
97 u8 enc_size;
98 __le16 ediv;
99 u8 rand[8];
100 u8 val[16];
101 } __packed;
102
103 struct key_master_id {
104 __le16 ediv;
105 u8 rand[8];
106 } __packed;
107
108 struct link_key_data {
109 bdaddr_t bdaddr;
110 u8 type;
111 u8 val[16];
112 u8 pin_len;
113 u8 dlen;
114 u8 data[0];
115 } __packed;
116
117 struct link_key {
118 struct list_head list;
119 bdaddr_t bdaddr;
120 u8 type;
121 u8 val[16];
122 u8 pin_len;
123 u8 dlen;
124 u8 data[0];
125 };
126
127 struct oob_data {
128 struct list_head list;
129 bdaddr_t bdaddr;
130 u8 hash[16];
131 u8 randomizer[16];
132 };
133
134 struct adv_entry {
135 struct list_head list;
136 bdaddr_t bdaddr;
137 u8 bdaddr_type;
138 };
139
140 #define NUM_REASSEMBLY 4
141 struct hci_dev {
142 struct list_head list;
143 struct mutex lock;
144
145 char name[8];
146 unsigned long flags;
147 __u16 id;
148 __u8 bus;
149 __u8 dev_type;
150 bdaddr_t bdaddr;
151 __u8 dev_name[HCI_MAX_NAME_LENGTH];
152 __u8 eir[HCI_MAX_EIR_LENGTH];
153 __u8 dev_class[3];
154 __u8 major_class;
155 __u8 minor_class;
156 __u8 features[8];
157 __u8 host_features[8];
158 __u8 commands[64];
159 __u8 hci_ver;
160 __u16 hci_rev;
161 __u8 lmp_ver;
162 __u16 manufacturer;
163 __le16 lmp_subver;
164 __u16 voice_setting;
165 __u8 io_capability;
166
167 __u16 pkt_type;
168 __u16 esco_type;
169 __u16 link_policy;
170 __u16 link_mode;
171
172 __u32 idle_timeout;
173 __u16 sniff_min_interval;
174 __u16 sniff_max_interval;
175
176 __u8 amp_status;
177 __u32 amp_total_bw;
178 __u32 amp_max_bw;
179 __u32 amp_min_latency;
180 __u32 amp_max_pdu;
181 __u8 amp_type;
182 __u16 amp_pal_cap;
183 __u16 amp_assoc_size;
184 __u32 amp_max_flush_to;
185 __u32 amp_be_flush_to;
186
187 __u8 flow_ctl_mode;
188
189 unsigned int auto_accept_delay;
190
191 unsigned long quirks;
192
193 atomic_t cmd_cnt;
194 unsigned int acl_cnt;
195 unsigned int sco_cnt;
196 unsigned int le_cnt;
197
198 unsigned int acl_mtu;
199 unsigned int sco_mtu;
200 unsigned int le_mtu;
201 unsigned int acl_pkts;
202 unsigned int sco_pkts;
203 unsigned int le_pkts;
204
205 __u16 block_len;
206 __u16 block_mtu;
207 __u16 num_blocks;
208 __u16 block_cnt;
209
210 unsigned long acl_last_tx;
211 unsigned long sco_last_tx;
212 unsigned long le_last_tx;
213
214 struct workqueue_struct *workqueue;
215
216 struct work_struct power_on;
217 struct delayed_work power_off;
218
219 __u16 discov_timeout;
220 struct delayed_work discov_off;
221
222 struct delayed_work service_cache;
223
224 struct timer_list cmd_timer;
225
226 struct work_struct rx_work;
227 struct work_struct cmd_work;
228 struct work_struct tx_work;
229
230 struct sk_buff_head rx_q;
231 struct sk_buff_head raw_q;
232 struct sk_buff_head cmd_q;
233
234 struct sk_buff *sent_cmd;
235 struct sk_buff *reassembly[NUM_REASSEMBLY];
236
237 struct mutex req_lock;
238 wait_queue_head_t req_wait_q;
239 __u32 req_status;
240 __u32 req_result;
241
242 __u16 init_last_cmd;
243
244 struct list_head mgmt_pending;
245
246 struct discovery_state discovery;
247 struct hci_conn_hash conn_hash;
248 struct list_head blacklist;
249
250 struct list_head uuids;
251
252 struct list_head link_keys;
253
254 struct list_head long_term_keys;
255
256 struct list_head remote_oob_data;
257
258 struct list_head adv_entries;
259 struct delayed_work adv_work;
260
261 struct hci_dev_stats stat;
262
263 struct sk_buff_head driver_init;
264
265 void *driver_data;
266 void *core_data;
267
268 atomic_t promisc;
269
270 struct dentry *debugfs;
271
272 struct device *parent;
273 struct device dev;
274
275 struct rfkill *rfkill;
276
277 unsigned long dev_flags;
278
279 int (*open)(struct hci_dev *hdev);
280 int (*close)(struct hci_dev *hdev);
281 int (*flush)(struct hci_dev *hdev);
282 int (*send)(struct sk_buff *skb);
283 void (*notify)(struct hci_dev *hdev, unsigned int evt);
284 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
285 };
286
287 struct hci_conn {
288 struct list_head list;
289
290 atomic_t refcnt;
291
292 bdaddr_t dst;
293 __u8 dst_type;
294 __u16 handle;
295 __u16 state;
296 __u8 mode;
297 __u8 type;
298 bool out;
299 __u8 attempt;
300 __u8 dev_class[3];
301 __u8 features[8];
302 __u16 interval;
303 __u16 pkt_type;
304 __u16 link_policy;
305 __u32 link_mode;
306 __u8 key_type;
307 __u8 auth_type;
308 __u8 sec_level;
309 __u8 pending_sec_level;
310 __u8 pin_length;
311 __u8 enc_key_size;
312 __u8 io_capability;
313 __u16 disc_timeout;
314 unsigned long flags;
315
316 __u8 remote_cap;
317 __u8 remote_auth;
318
319 unsigned int sent;
320
321 struct sk_buff_head data_q;
322 struct list_head chan_list;
323
324 struct delayed_work disc_work;
325 struct timer_list idle_timer;
326 struct timer_list auto_accept_timer;
327
328 struct device dev;
329 atomic_t devref;
330
331 struct hci_dev *hdev;
332 void *l2cap_data;
333 void *sco_data;
334 void *smp_conn;
335
336 struct hci_conn *link;
337
338 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
339 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
340 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
341 };
342
343 struct hci_chan {
344 struct list_head list;
345
346 struct hci_conn *conn;
347 struct sk_buff_head data_q;
348 unsigned int sent;
349 };
350
351 extern struct list_head hci_dev_list;
352 extern struct list_head hci_cb_list;
353 extern rwlock_t hci_dev_list_lock;
354 extern rwlock_t hci_cb_list_lock;
355
356 /* ----- HCI interface to upper protocols ----- */
357 extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
358 extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
359 extern int l2cap_disconn_ind(struct hci_conn *hcon);
360 extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
361 extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
362 extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
363
364 extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
365 extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
366 extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
367 extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
368
369 /* ----- Inquiry cache ----- */
370 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
371 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
372
373 static inline void discovery_init(struct hci_dev *hdev)
374 {
375 hdev->discovery.state = DISCOVERY_STOPPED;
376 INIT_LIST_HEAD(&hdev->discovery.all);
377 INIT_LIST_HEAD(&hdev->discovery.unknown);
378 INIT_LIST_HEAD(&hdev->discovery.resolve);
379 }
380
381 bool hci_discovery_active(struct hci_dev *hdev);
382
383 void hci_discovery_set_state(struct hci_dev *hdev, int state);
384
385 static inline int inquiry_cache_empty(struct hci_dev *hdev)
386 {
387 return list_empty(&hdev->discovery.all);
388 }
389
390 static inline long inquiry_cache_age(struct hci_dev *hdev)
391 {
392 struct discovery_state *c = &hdev->discovery;
393 return jiffies - c->timestamp;
394 }
395
396 static inline long inquiry_entry_age(struct inquiry_entry *e)
397 {
398 return jiffies - e->timestamp;
399 }
400
401 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
402 bdaddr_t *bdaddr);
403 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
404 bdaddr_t *bdaddr);
405 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
406 bdaddr_t *bdaddr,
407 int state);
408 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
409 struct inquiry_entry *ie);
410 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
411 bool name_known);
412
413 /* ----- HCI Connections ----- */
414 enum {
415 HCI_CONN_AUTH_PEND,
416 HCI_CONN_REAUTH_PEND,
417 HCI_CONN_ENCRYPT_PEND,
418 HCI_CONN_RSWITCH_PEND,
419 HCI_CONN_MODE_CHANGE_PEND,
420 HCI_CONN_SCO_SETUP_PEND,
421 HCI_CONN_LE_SMP_PEND,
422 HCI_CONN_MGMT_CONNECTED,
423 HCI_CONN_SSP_ENABLED,
424 HCI_CONN_POWER_SAVE,
425 HCI_CONN_REMOTE_OOB,
426 };
427
428 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
429 {
430 struct hci_dev *hdev = conn->hdev;
431 return (test_bit(HCI_SSP_ENABLED, &hdev->flags) &&
432 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags));
433 }
434
435 static inline void hci_conn_hash_init(struct hci_dev *hdev)
436 {
437 struct hci_conn_hash *h = &hdev->conn_hash;
438 INIT_LIST_HEAD(&h->list);
439 h->acl_num = 0;
440 h->sco_num = 0;
441 h->le_num = 0;
442 }
443
444 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
445 {
446 struct hci_conn_hash *h = &hdev->conn_hash;
447 list_add_rcu(&c->list, &h->list);
448 switch (c->type) {
449 case ACL_LINK:
450 h->acl_num++;
451 break;
452 case LE_LINK:
453 h->le_num++;
454 break;
455 case SCO_LINK:
456 case ESCO_LINK:
457 h->sco_num++;
458 break;
459 }
460 }
461
462 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
463 {
464 struct hci_conn_hash *h = &hdev->conn_hash;
465
466 list_del_rcu(&c->list);
467 synchronize_rcu();
468
469 switch (c->type) {
470 case ACL_LINK:
471 h->acl_num--;
472 break;
473 case LE_LINK:
474 h->le_num--;
475 break;
476 case SCO_LINK:
477 case ESCO_LINK:
478 h->sco_num--;
479 break;
480 }
481 }
482
483 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
484 {
485 struct hci_conn_hash *h = &hdev->conn_hash;
486 switch (type) {
487 case ACL_LINK:
488 return h->acl_num;
489 case LE_LINK:
490 return h->le_num;
491 case SCO_LINK:
492 case ESCO_LINK:
493 return h->sco_num;
494 default:
495 return 0;
496 }
497 }
498
499 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
500 __u16 handle)
501 {
502 struct hci_conn_hash *h = &hdev->conn_hash;
503 struct hci_conn *c;
504
505 rcu_read_lock();
506
507 list_for_each_entry_rcu(c, &h->list, list) {
508 if (c->handle == handle) {
509 rcu_read_unlock();
510 return c;
511 }
512 }
513 rcu_read_unlock();
514
515 return NULL;
516 }
517
518 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
519 __u8 type, bdaddr_t *ba)
520 {
521 struct hci_conn_hash *h = &hdev->conn_hash;
522 struct hci_conn *c;
523
524 rcu_read_lock();
525
526 list_for_each_entry_rcu(c, &h->list, list) {
527 if (c->type == type && !bacmp(&c->dst, ba)) {
528 rcu_read_unlock();
529 return c;
530 }
531 }
532
533 rcu_read_unlock();
534
535 return NULL;
536 }
537
538 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
539 __u8 type, __u16 state)
540 {
541 struct hci_conn_hash *h = &hdev->conn_hash;
542 struct hci_conn *c;
543
544 rcu_read_lock();
545
546 list_for_each_entry_rcu(c, &h->list, list) {
547 if (c->type == type && c->state == state) {
548 rcu_read_unlock();
549 return c;
550 }
551 }
552
553 rcu_read_unlock();
554
555 return NULL;
556 }
557
558 void hci_acl_connect(struct hci_conn *conn);
559 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
560 void hci_add_sco(struct hci_conn *conn, __u16 handle);
561 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
562 void hci_sco_setup(struct hci_conn *conn, __u8 status);
563
564 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
565 int hci_conn_del(struct hci_conn *conn);
566 void hci_conn_hash_flush(struct hci_dev *hdev);
567 void hci_conn_check_pending(struct hci_dev *hdev);
568
569 struct hci_chan *hci_chan_create(struct hci_conn *conn);
570 int hci_chan_del(struct hci_chan *chan);
571 void hci_chan_list_flush(struct hci_conn *conn);
572
573 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
574 __u8 sec_level, __u8 auth_type);
575 int hci_conn_check_link_mode(struct hci_conn *conn);
576 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
577 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
578 int hci_conn_change_link_key(struct hci_conn *conn);
579 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
580
581 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
582
583 void hci_conn_hold_device(struct hci_conn *conn);
584 void hci_conn_put_device(struct hci_conn *conn);
585
586 static inline void hci_conn_hold(struct hci_conn *conn)
587 {
588 atomic_inc(&conn->refcnt);
589 cancel_delayed_work(&conn->disc_work);
590 }
591
592 static inline void hci_conn_put(struct hci_conn *conn)
593 {
594 if (atomic_dec_and_test(&conn->refcnt)) {
595 unsigned long timeo;
596 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
597 del_timer(&conn->idle_timer);
598 if (conn->state == BT_CONNECTED) {
599 timeo = msecs_to_jiffies(conn->disc_timeout);
600 if (!conn->out)
601 timeo *= 2;
602 } else {
603 timeo = msecs_to_jiffies(10);
604 }
605 } else {
606 timeo = msecs_to_jiffies(10);
607 }
608 cancel_delayed_work(&conn->disc_work);
609 queue_delayed_work(conn->hdev->workqueue,
610 &conn->disc_work, timeo);
611 }
612 }
613
614 /* ----- HCI Devices ----- */
615 static inline void hci_dev_put(struct hci_dev *d)
616 {
617 put_device(&d->dev);
618 }
619
620 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
621 {
622 get_device(&d->dev);
623 return d;
624 }
625
626 #define hci_dev_lock(d) mutex_lock(&d->lock)
627 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
628
629 struct hci_dev *hci_dev_get(int index);
630 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
631
632 struct hci_dev *hci_alloc_dev(void);
633 void hci_free_dev(struct hci_dev *hdev);
634 int hci_register_dev(struct hci_dev *hdev);
635 void hci_unregister_dev(struct hci_dev *hdev);
636 int hci_suspend_dev(struct hci_dev *hdev);
637 int hci_resume_dev(struct hci_dev *hdev);
638 int hci_dev_open(__u16 dev);
639 int hci_dev_close(__u16 dev);
640 int hci_dev_reset(__u16 dev);
641 int hci_dev_reset_stat(__u16 dev);
642 int hci_dev_cmd(unsigned int cmd, void __user *arg);
643 int hci_get_dev_list(void __user *arg);
644 int hci_get_dev_info(void __user *arg);
645 int hci_get_conn_list(void __user *arg);
646 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
647 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
648 int hci_inquiry(void __user *arg);
649
650 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
651 int hci_blacklist_clear(struct hci_dev *hdev);
652 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
653 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
654
655 int hci_uuids_clear(struct hci_dev *hdev);
656
657 int hci_link_keys_clear(struct hci_dev *hdev);
658 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
659 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
660 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
661 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
662 struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
663 bdaddr_t *bdaddr, u8 type);
664 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
665 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
666 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
667 int hci_smp_ltks_clear(struct hci_dev *hdev);
668 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
669
670 int hci_remote_oob_data_clear(struct hci_dev *hdev);
671 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
672 bdaddr_t *bdaddr);
673 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
674 u8 *randomizer);
675 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
676
677 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
678 int hci_adv_entries_clear(struct hci_dev *hdev);
679 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
680 int hci_add_adv_entry(struct hci_dev *hdev,
681 struct hci_ev_le_advertising_info *ev);
682
683 void hci_del_off_timer(struct hci_dev *hdev);
684
685 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
686
687 int hci_recv_frame(struct sk_buff *skb);
688 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
689 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
690
691 void hci_init_sysfs(struct hci_dev *hdev);
692 int hci_add_sysfs(struct hci_dev *hdev);
693 void hci_del_sysfs(struct hci_dev *hdev);
694 void hci_conn_init_sysfs(struct hci_conn *conn);
695 void hci_conn_add_sysfs(struct hci_conn *conn);
696 void hci_conn_del_sysfs(struct hci_conn *conn);
697
698 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
699
700 /* ----- LMP capabilities ----- */
701 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
702 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
703 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
704 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
705 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
706 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
707 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
708 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
709
710 /* ----- Extended LMP capabilities ----- */
711 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
712
713 /* ----- HCI protocols ----- */
714 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
715 __u8 type)
716 {
717 switch (type) {
718 case ACL_LINK:
719 return l2cap_connect_ind(hdev, bdaddr);
720
721 case SCO_LINK:
722 case ESCO_LINK:
723 return sco_connect_ind(hdev, bdaddr);
724
725 default:
726 BT_ERR("unknown link type %d", type);
727 return -EINVAL;
728 }
729 }
730
731 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
732 {
733 switch (conn->type) {
734 case ACL_LINK:
735 case LE_LINK:
736 l2cap_connect_cfm(conn, status);
737 break;
738
739 case SCO_LINK:
740 case ESCO_LINK:
741 sco_connect_cfm(conn, status);
742 break;
743
744 default:
745 BT_ERR("unknown link type %d", conn->type);
746 break;
747 }
748
749 if (conn->connect_cfm_cb)
750 conn->connect_cfm_cb(conn, status);
751 }
752
753 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
754 {
755 if (conn->type != ACL_LINK && conn->type != LE_LINK)
756 return HCI_ERROR_REMOTE_USER_TERM;
757
758 return l2cap_disconn_ind(conn);
759 }
760
761 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
762 {
763 switch (conn->type) {
764 case ACL_LINK:
765 case LE_LINK:
766 l2cap_disconn_cfm(conn, reason);
767 break;
768
769 case SCO_LINK:
770 case ESCO_LINK:
771 sco_disconn_cfm(conn, reason);
772 break;
773
774 default:
775 BT_ERR("unknown link type %d", conn->type);
776 break;
777 }
778
779 if (conn->disconn_cfm_cb)
780 conn->disconn_cfm_cb(conn, reason);
781 }
782
783 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
784 {
785 __u8 encrypt;
786
787 if (conn->type != ACL_LINK && conn->type != LE_LINK)
788 return;
789
790 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
791 return;
792
793 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
794 l2cap_security_cfm(conn, status, encrypt);
795
796 if (conn->security_cfm_cb)
797 conn->security_cfm_cb(conn, status);
798 }
799
800 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
801 __u8 encrypt)
802 {
803 if (conn->type != ACL_LINK && conn->type != LE_LINK)
804 return;
805
806 l2cap_security_cfm(conn, status, encrypt);
807
808 if (conn->security_cfm_cb)
809 conn->security_cfm_cb(conn, status);
810 }
811
812 /* ----- HCI callbacks ----- */
813 struct hci_cb {
814 struct list_head list;
815
816 char *name;
817
818 void (*security_cfm) (struct hci_conn *conn, __u8 status,
819 __u8 encrypt);
820 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
821 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
822 };
823
824 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
825 {
826 struct list_head *p;
827 __u8 encrypt;
828
829 hci_proto_auth_cfm(conn, status);
830
831 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
832 return;
833
834 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
835
836 read_lock(&hci_cb_list_lock);
837 list_for_each(p, &hci_cb_list) {
838 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
839 if (cb->security_cfm)
840 cb->security_cfm(conn, status, encrypt);
841 }
842 read_unlock(&hci_cb_list_lock);
843 }
844
845 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
846 __u8 encrypt)
847 {
848 struct list_head *p;
849
850 if (conn->sec_level == BT_SECURITY_SDP)
851 conn->sec_level = BT_SECURITY_LOW;
852
853 if (conn->pending_sec_level > conn->sec_level)
854 conn->sec_level = conn->pending_sec_level;
855
856 hci_proto_encrypt_cfm(conn, status, encrypt);
857
858 read_lock(&hci_cb_list_lock);
859 list_for_each(p, &hci_cb_list) {
860 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
861 if (cb->security_cfm)
862 cb->security_cfm(conn, status, encrypt);
863 }
864 read_unlock(&hci_cb_list_lock);
865 }
866
867 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
868 {
869 struct list_head *p;
870
871 read_lock(&hci_cb_list_lock);
872 list_for_each(p, &hci_cb_list) {
873 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
874 if (cb->key_change_cfm)
875 cb->key_change_cfm(conn, status);
876 }
877 read_unlock(&hci_cb_list_lock);
878 }
879
880 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
881 __u8 role)
882 {
883 struct list_head *p;
884
885 read_lock(&hci_cb_list_lock);
886 list_for_each(p, &hci_cb_list) {
887 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
888 if (cb->role_switch_cfm)
889 cb->role_switch_cfm(conn, status, role);
890 }
891 read_unlock(&hci_cb_list_lock);
892 }
893
894 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
895 {
896 u8 field_len;
897 size_t parsed;
898
899 for (parsed = 0; parsed < data_len - 1; parsed += field_len) {
900 field_len = data[0];
901
902 if (field_len == 0)
903 break;
904
905 parsed += field_len + 1;
906
907 if (parsed > data_len)
908 break;
909
910 if (data[1] == type)
911 return true;
912
913 data += field_len + 1;
914 }
915
916 return false;
917 }
918
919 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
920 u8 data_len)
921 {
922 eir[eir_len++] = sizeof(type) + data_len;
923 eir[eir_len++] = type;
924 memcpy(&eir[eir_len], data, data_len);
925 eir_len += data_len;
926
927 return eir_len;
928 }
929
930 int hci_register_cb(struct hci_cb *hcb);
931 int hci_unregister_cb(struct hci_cb *hcb);
932
933 int hci_register_notifier(struct notifier_block *nb);
934 int hci_unregister_notifier(struct notifier_block *nb);
935
936 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
937 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
938 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
939
940 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
941
942 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
943
944 /* ----- HCI Sockets ----- */
945 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
946 struct sock *skip_sk);
947
948 /* Management interface */
949 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
950 int mgmt_index_added(struct hci_dev *hdev);
951 int mgmt_index_removed(struct hci_dev *hdev);
952 int mgmt_powered(struct hci_dev *hdev, u8 powered);
953 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
954 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
955 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
956 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
957 u8 persistent);
958 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
959 u8 addr_type, u8 *name, u8 name_len,
960 u8 *dev_class);
961 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
962 u8 link_type, u8 addr_type);
963 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
964 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
965 u8 addr_type, u8 status);
966 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
967 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
968 u8 status);
969 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
970 u8 status);
971 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
972 __le32 value, u8 confirm_hint);
973 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
974 u8 status);
975 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
976 bdaddr_t *bdaddr, u8 status);
977 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr);
978 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
979 u8 status);
980 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,
981 bdaddr_t *bdaddr, u8 status);
982 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
983 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
984 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
985 u8 *randomizer, u8 status);
986 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
987 u8 addr_type, u8 *dev_class, s8 rssi,
988 u8 cfm_name, u8 *eir, u16 eir_len);
989 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
990 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
991 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
992 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
993 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
994 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
995 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
996
997 /* HCI info for socket */
998 #define hci_pi(sk) ((struct hci_pinfo *) sk)
999
1000 /* HCI socket flags */
1001 #define HCI_PI_MGMT_INIT 0
1002
1003 struct hci_pinfo {
1004 struct bt_sock bt;
1005 struct hci_dev *hdev;
1006 struct hci_filter filter;
1007 __u32 cmsg_mask;
1008 unsigned short channel;
1009 unsigned long flags;
1010 };
1011
1012 /* HCI security filter */
1013 #define HCI_SFLT_MAX_OGF 5
1014
1015 struct hci_sec_filter {
1016 __u32 type_mask;
1017 __u32 event_mask[2];
1018 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1019 };
1020
1021 /* ----- HCI requests ----- */
1022 #define HCI_REQ_DONE 0
1023 #define HCI_REQ_PEND 1
1024 #define HCI_REQ_CANCELED 2
1025
1026 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1027 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1028
1029 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1030
1031 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1032 u16 latency, u16 to_multiplier);
1033 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1034 __u8 ltk[16]);
1035 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
1036 void hci_le_ltk_neg_reply(struct hci_conn *conn);
1037
1038 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1039 int hci_cancel_inquiry(struct hci_dev *hdev);
1040
1041 #endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)