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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/net/bluetooth/hci_core.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/net/bluetooth/hci_core.h')
-rw-r--r--include/net/bluetooth/hci_core.h626
1 files changed, 626 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
new file mode 100644
index 00000000000..6d63a47c731
--- /dev/null
+++ b/include/net/bluetooth/hci_core.h
@@ -0,0 +1,626 @@
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
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/proc_fs.h>
29#include <net/bluetooth/hci.h>
30
31/* HCI upper protocols */
32#define HCI_PROTO_L2CAP 0
33#define HCI_PROTO_SCO 1
34
35#define HCI_INIT_TIMEOUT (HZ * 10)
36
37extern struct proc_dir_entry *proc_bt_hci;
38
39/* HCI Core structures */
40
41struct inquiry_data {
42 bdaddr_t bdaddr;
43 __u8 pscan_rep_mode;
44 __u8 pscan_period_mode;
45 __u8 pscan_mode;
46 __u8 dev_class[3];
47 __u16 clock_offset;
48 __s8 rssi;
49};
50
51struct inquiry_entry {
52 struct inquiry_entry *next;
53 __u32 timestamp;
54 struct inquiry_data data;
55};
56
57struct inquiry_cache {
58 spinlock_t lock;
59 __u32 timestamp;
60 struct inquiry_entry *list;
61};
62
63struct hci_conn_hash {
64 struct list_head list;
65 spinlock_t lock;
66 unsigned int acl_num;
67 unsigned int sco_num;
68};
69
70struct hci_dev {
71 struct list_head list;
72 spinlock_t lock;
73 atomic_t refcnt;
74
75 char name[8];
76 unsigned long flags;
77 __u16 id;
78 __u8 type;
79 bdaddr_t bdaddr;
80 __u8 features[8];
81 __u16 voice_setting;
82
83 __u16 pkt_type;
84 __u16 link_policy;
85 __u16 link_mode;
86
87 unsigned long quirks;
88
89 atomic_t cmd_cnt;
90 unsigned int acl_cnt;
91 unsigned int sco_cnt;
92
93 unsigned int acl_mtu;
94 unsigned int sco_mtu;
95 unsigned int acl_pkts;
96 unsigned int sco_pkts;
97
98 unsigned long cmd_last_tx;
99 unsigned long acl_last_tx;
100 unsigned long sco_last_tx;
101
102 struct tasklet_struct cmd_task;
103 struct tasklet_struct rx_task;
104 struct tasklet_struct tx_task;
105
106 struct sk_buff_head rx_q;
107 struct sk_buff_head raw_q;
108 struct sk_buff_head cmd_q;
109
110 struct sk_buff *sent_cmd;
111
112 struct semaphore req_lock;
113 wait_queue_head_t req_wait_q;
114 __u32 req_status;
115 __u32 req_result;
116
117 struct inquiry_cache inq_cache;
118 struct hci_conn_hash conn_hash;
119
120 struct hci_dev_stats stat;
121
122 struct sk_buff_head driver_init;
123
124 void *driver_data;
125 void *core_data;
126
127 atomic_t promisc;
128
129#ifdef CONFIG_PROC_FS
130 struct proc_dir_entry *proc;
131#endif
132
133 struct class_device class_dev;
134
135 struct module *owner;
136
137 int (*open)(struct hci_dev *hdev);
138 int (*close)(struct hci_dev *hdev);
139 int (*flush)(struct hci_dev *hdev);
140 int (*send)(struct sk_buff *skb);
141 void (*destruct)(struct hci_dev *hdev);
142 void (*notify)(struct hci_dev *hdev, unsigned int evt);
143 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
144};
145
146struct hci_conn {
147 struct list_head list;
148
149 atomic_t refcnt;
150 spinlock_t lock;
151
152 bdaddr_t dst;
153 __u16 handle;
154 __u16 state;
155 __u8 type;
156 __u8 out;
157 __u8 dev_class[3];
158 __u32 link_mode;
159 unsigned long pend;
160
161 unsigned int sent;
162
163 struct sk_buff_head data_q;
164
165 struct timer_list timer;
166
167 struct hci_dev *hdev;
168 void *l2cap_data;
169 void *sco_data;
170 void *priv;
171
172 struct hci_conn *link;
173};
174
175extern struct hci_proto *hci_proto[];
176extern struct list_head hci_dev_list;
177extern struct list_head hci_cb_list;
178extern rwlock_t hci_dev_list_lock;
179extern rwlock_t hci_cb_list_lock;
180
181/* ----- Inquiry cache ----- */
182#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds
183#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds
184
185#define inquiry_cache_lock(c) spin_lock(&c->lock)
186#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
187#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
188#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
189
190static inline void inquiry_cache_init(struct hci_dev *hdev)
191{
192 struct inquiry_cache *c = &hdev->inq_cache;
193 spin_lock_init(&c->lock);
194 c->list = NULL;
195}
196
197static inline int inquiry_cache_empty(struct hci_dev *hdev)
198{
199 struct inquiry_cache *c = &hdev->inq_cache;
200 return (c->list == NULL);
201}
202
203static inline long inquiry_cache_age(struct hci_dev *hdev)
204{
205 struct inquiry_cache *c = &hdev->inq_cache;
206 return jiffies - c->timestamp;
207}
208
209static inline long inquiry_entry_age(struct inquiry_entry *e)
210{
211 return jiffies - e->timestamp;
212}
213
214struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
215void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
216
217/* ----- HCI Connections ----- */
218enum {
219 HCI_CONN_AUTH_PEND,
220 HCI_CONN_ENCRYPT_PEND,
221 HCI_CONN_RSWITCH_PEND
222};
223
224static inline void hci_conn_hash_init(struct hci_dev *hdev)
225{
226 struct hci_conn_hash *h = &hdev->conn_hash;
227 INIT_LIST_HEAD(&h->list);
228 spin_lock_init(&h->lock);
229 h->acl_num = 0;
230 h->sco_num = 0;
231}
232
233static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
234{
235 struct hci_conn_hash *h = &hdev->conn_hash;
236 list_add(&c->list, &h->list);
237 if (c->type == ACL_LINK)
238 h->acl_num++;
239 else
240 h->sco_num++;
241}
242
243static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
244{
245 struct hci_conn_hash *h = &hdev->conn_hash;
246 list_del(&c->list);
247 if (c->type == ACL_LINK)
248 h->acl_num--;
249 else
250 h->sco_num--;
251}
252
253static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
254 __u16 handle)
255{
256 struct hci_conn_hash *h = &hdev->conn_hash;
257 struct list_head *p;
258 struct hci_conn *c;
259
260 list_for_each(p, &h->list) {
261 c = list_entry(p, struct hci_conn, list);
262 if (c->handle == handle)
263 return c;
264 }
265 return NULL;
266}
267
268static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
269 __u8 type, bdaddr_t *ba)
270{
271 struct hci_conn_hash *h = &hdev->conn_hash;
272 struct list_head *p;
273 struct hci_conn *c;
274
275 list_for_each(p, &h->list) {
276 c = list_entry(p, struct hci_conn, list);
277 if (c->type == type && !bacmp(&c->dst, ba))
278 return c;
279 }
280 return NULL;
281}
282
283void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
284void hci_add_sco(struct hci_conn *conn, __u16 handle);
285
286struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
287int hci_conn_del(struct hci_conn *conn);
288void hci_conn_hash_flush(struct hci_dev *hdev);
289
290struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *src);
291int hci_conn_auth(struct hci_conn *conn);
292int hci_conn_encrypt(struct hci_conn *conn);
293int hci_conn_change_link_key(struct hci_conn *conn);
294int hci_conn_switch_role(struct hci_conn *conn, uint8_t role);
295
296static inline void hci_conn_set_timer(struct hci_conn *conn, unsigned long timeout)
297{
298 mod_timer(&conn->timer, jiffies + timeout);
299}
300
301static inline void hci_conn_del_timer(struct hci_conn *conn)
302{
303 del_timer(&conn->timer);
304}
305
306static inline void hci_conn_hold(struct hci_conn *conn)
307{
308 atomic_inc(&conn->refcnt);
309 hci_conn_del_timer(conn);
310}
311
312static inline void hci_conn_put(struct hci_conn *conn)
313{
314 if (atomic_dec_and_test(&conn->refcnt)) {
315 if (conn->type == ACL_LINK) {
316 unsigned long timeo = (conn->out) ?
317 HCI_DISCONN_TIMEOUT : HCI_DISCONN_TIMEOUT * 2;
318 hci_conn_set_timer(conn, timeo);
319 } else
320 hci_conn_set_timer(conn, HZ / 100);
321 }
322}
323
324/* ----- HCI tasks ----- */
325static inline void hci_sched_cmd(struct hci_dev *hdev)
326{
327 tasklet_schedule(&hdev->cmd_task);
328}
329
330static inline void hci_sched_rx(struct hci_dev *hdev)
331{
332 tasklet_schedule(&hdev->rx_task);
333}
334
335static inline void hci_sched_tx(struct hci_dev *hdev)
336{
337 tasklet_schedule(&hdev->tx_task);
338}
339
340/* ----- HCI Devices ----- */
341static inline void __hci_dev_put(struct hci_dev *d)
342{
343 if (atomic_dec_and_test(&d->refcnt))
344 d->destruct(d);
345}
346
347static inline void hci_dev_put(struct hci_dev *d)
348{
349 __hci_dev_put(d);
350 module_put(d->owner);
351}
352
353static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
354{
355 atomic_inc(&d->refcnt);
356 return d;
357}
358
359static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
360{
361 if (try_module_get(d->owner))
362 return __hci_dev_hold(d);
363 return NULL;
364}
365
366#define hci_dev_lock(d) spin_lock(&d->lock)
367#define hci_dev_unlock(d) spin_unlock(&d->lock)
368#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
369#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
370
371struct hci_dev *hci_dev_get(int index);
372struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
373
374struct hci_dev *hci_alloc_dev(void);
375void hci_free_dev(struct hci_dev *hdev);
376int hci_register_dev(struct hci_dev *hdev);
377int hci_unregister_dev(struct hci_dev *hdev);
378int hci_suspend_dev(struct hci_dev *hdev);
379int hci_resume_dev(struct hci_dev *hdev);
380int hci_dev_open(__u16 dev);
381int hci_dev_close(__u16 dev);
382int hci_dev_reset(__u16 dev);
383int hci_dev_reset_stat(__u16 dev);
384int hci_dev_cmd(unsigned int cmd, void __user *arg);
385int hci_get_dev_list(void __user *arg);
386int hci_get_dev_info(void __user *arg);
387int hci_get_conn_list(void __user *arg);
388int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
389int hci_inquiry(void __user *arg);
390
391void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
392
393/* Receive frame from HCI drivers */
394static inline int hci_recv_frame(struct sk_buff *skb)
395{
396 struct hci_dev *hdev = (struct hci_dev *) skb->dev;
397 if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
398 && !test_bit(HCI_INIT, &hdev->flags))) {
399 kfree_skb(skb);
400 return -ENXIO;
401 }
402
403 /* Incomming skb */
404 bt_cb(skb)->incoming = 1;
405
406 /* Time stamp */
407 do_gettimeofday(&skb->stamp);
408
409 /* Queue frame for rx task */
410 skb_queue_tail(&hdev->rx_q, skb);
411 hci_sched_rx(hdev);
412 return 0;
413}
414
415int hci_register_sysfs(struct hci_dev *hdev);
416void hci_unregister_sysfs(struct hci_dev *hdev);
417
418#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->class_dev.dev = (pdev))
419
420/* ----- LMP capabilities ----- */
421#define lmp_rswitch_capable(dev) (dev->features[0] & LMP_RSWITCH)
422#define lmp_encrypt_capable(dev) (dev->features[0] & LMP_ENCRYPT)
423
424/* ----- HCI protocols ----- */
425struct hci_proto {
426 char *name;
427 unsigned int id;
428 unsigned long flags;
429
430 void *priv;
431
432 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
433 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
434 int (*disconn_ind) (struct hci_conn *conn, __u8 reason);
435 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
436 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
437 int (*auth_cfm) (struct hci_conn *conn, __u8 status);
438 int (*encrypt_cfm) (struct hci_conn *conn, __u8 status);
439};
440
441static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
442{
443 register struct hci_proto *hp;
444 int mask = 0;
445
446 hp = hci_proto[HCI_PROTO_L2CAP];
447 if (hp && hp->connect_ind)
448 mask |= hp->connect_ind(hdev, bdaddr, type);
449
450 hp = hci_proto[HCI_PROTO_SCO];
451 if (hp && hp->connect_ind)
452 mask |= hp->connect_ind(hdev, bdaddr, type);
453
454 return mask;
455}
456
457static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
458{
459 register struct hci_proto *hp;
460
461 hp = hci_proto[HCI_PROTO_L2CAP];
462 if (hp && hp->connect_cfm)
463 hp->connect_cfm(conn, status);
464
465 hp = hci_proto[HCI_PROTO_SCO];
466 if (hp && hp->connect_cfm)
467 hp->connect_cfm(conn, status);
468}
469
470static inline void hci_proto_disconn_ind(struct hci_conn *conn, __u8 reason)
471{
472 register struct hci_proto *hp;
473
474 hp = hci_proto[HCI_PROTO_L2CAP];
475 if (hp && hp->disconn_ind)
476 hp->disconn_ind(conn, reason);
477
478 hp = hci_proto[HCI_PROTO_SCO];
479 if (hp && hp->disconn_ind)
480 hp->disconn_ind(conn, reason);
481}
482
483static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
484{
485 register struct hci_proto *hp;
486
487 hp = hci_proto[HCI_PROTO_L2CAP];
488 if (hp && hp->auth_cfm)
489 hp->auth_cfm(conn, status);
490
491 hp = hci_proto[HCI_PROTO_SCO];
492 if (hp && hp->auth_cfm)
493 hp->auth_cfm(conn, status);
494}
495
496static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status)
497{
498 register struct hci_proto *hp;
499
500 hp = hci_proto[HCI_PROTO_L2CAP];
501 if (hp && hp->encrypt_cfm)
502 hp->encrypt_cfm(conn, status);
503
504 hp = hci_proto[HCI_PROTO_SCO];
505 if (hp && hp->encrypt_cfm)
506 hp->encrypt_cfm(conn, status);
507}
508
509int hci_register_proto(struct hci_proto *hproto);
510int hci_unregister_proto(struct hci_proto *hproto);
511
512/* ----- HCI callbacks ----- */
513struct hci_cb {
514 struct list_head list;
515
516 char *name;
517
518 void (*auth_cfm) (struct hci_conn *conn, __u8 status);
519 void (*encrypt_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
520 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
521 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
522};
523
524static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
525{
526 struct list_head *p;
527
528 hci_proto_auth_cfm(conn, status);
529
530 read_lock_bh(&hci_cb_list_lock);
531 list_for_each(p, &hci_cb_list) {
532 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
533 if (cb->auth_cfm)
534 cb->auth_cfm(conn, status);
535 }
536 read_unlock_bh(&hci_cb_list_lock);
537}
538
539static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
540{
541 struct list_head *p;
542
543 hci_proto_encrypt_cfm(conn, status);
544
545 read_lock_bh(&hci_cb_list_lock);
546 list_for_each(p, &hci_cb_list) {
547 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
548 if (cb->encrypt_cfm)
549 cb->encrypt_cfm(conn, status, encrypt);
550 }
551 read_unlock_bh(&hci_cb_list_lock);
552}
553
554static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
555{
556 struct list_head *p;
557
558 read_lock_bh(&hci_cb_list_lock);
559 list_for_each(p, &hci_cb_list) {
560 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
561 if (cb->key_change_cfm)
562 cb->key_change_cfm(conn, status);
563 }
564 read_unlock_bh(&hci_cb_list_lock);
565}
566
567static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
568{
569 struct list_head *p;
570
571 read_lock_bh(&hci_cb_list_lock);
572 list_for_each(p, &hci_cb_list) {
573 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
574 if (cb->role_switch_cfm)
575 cb->role_switch_cfm(conn, status, role);
576 }
577 read_unlock_bh(&hci_cb_list_lock);
578}
579
580int hci_register_cb(struct hci_cb *hcb);
581int hci_unregister_cb(struct hci_cb *hcb);
582
583int hci_register_notifier(struct notifier_block *nb);
584int hci_unregister_notifier(struct notifier_block *nb);
585
586int hci_send_cmd(struct hci_dev *hdev, __u16 ogf, __u16 ocf, __u32 plen, void *param);
587int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
588int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
589
590void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 ogf, __u16 ocf);
591
592void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
593
594/* ----- HCI Sockets ----- */
595void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
596
597/* HCI info for socket */
598#define hci_pi(sk) ((struct hci_pinfo *) sk)
599
600struct hci_pinfo {
601 struct bt_sock bt;
602 struct hci_dev *hdev;
603 struct hci_filter filter;
604 __u32 cmsg_mask;
605};
606
607/* HCI security filter */
608#define HCI_SFLT_MAX_OGF 5
609
610struct hci_sec_filter {
611 __u32 type_mask;
612 __u32 event_mask[2];
613 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
614};
615
616/* ----- HCI requests ----- */
617#define HCI_REQ_DONE 0
618#define HCI_REQ_PEND 1
619#define HCI_REQ_CANCELED 2
620
621#define hci_req_lock(d) down(&d->req_lock)
622#define hci_req_unlock(d) up(&d->req_lock)
623
624void hci_req_complete(struct hci_dev *hdev, int result);
625
626#endif /* __HCI_CORE_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-11 11:30:17 -0400