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Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / bluetooth / hci_event.c
CommitLineData
1da177e4
LT		 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/* Bluetooth HCI event handling. */
26
27#include <linux/config.h>
28#include <linux/module.h>
29
30#include <linux/types.h>
31#include <linux/errno.h>
32#include <linux/kernel.h>
1da177e4
LT		 33#include <linux/sched.h>
34#include <linux/slab.h>
35#include <linux/poll.h>
36#include <linux/fcntl.h>
37#include <linux/init.h>
38#include <linux/skbuff.h>
39#include <linux/interrupt.h>
40#include <linux/notifier.h>
41#include <net/sock.h>
42
43#include <asm/system.h>
44#include <asm/uaccess.h>
45#include <asm/unaligned.h>
46
47#include <net/bluetooth/bluetooth.h>
48#include <net/bluetooth/hci_core.h>
49
50#ifndef CONFIG_BT_HCI_CORE_DEBUG
51#undef BT_DBG
52#define BT_DBG(D...)
53#endif
54
55/* Handle HCI Event packets */
56
57/* Command Complete OGF LINK_CTL */
58static void hci_cc_link_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
59{
60 __u8 status;
61
62 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
63
64 switch (ocf) {
65 case OCF_INQUIRY_CANCEL:
66 status = *((__u8 *) skb->data);
67
68 if (status) {
69 BT_DBG("%s Inquiry cancel error: status 0x%x", hdev->name, status);
70 } else {
71 clear_bit(HCI_INQUIRY, &hdev->flags);
72 hci_req_complete(hdev, status);
73 }
74 break;
75
76 default:
77 BT_DBG("%s Command complete: ogf LINK_CTL ocf %x", hdev->name, ocf);
78 break;
79 }
80}
81
82/* Command Complete OGF LINK_POLICY */
83static void hci_cc_link_policy(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
84{
85 struct hci_conn *conn;
86 struct hci_rp_role_discovery *rd;
87
88 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
89
90 switch (ocf) {
91 case OCF_ROLE_DISCOVERY:
92 rd = (void *) skb->data;
93
94 if (rd->status)
95 break;
96
97 hci_dev_lock(hdev);
98
99 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rd->handle));
100 if (conn) {
101 if (rd->role)
102 conn->link_mode &= ~HCI_LM_MASTER;
103 else
104 conn->link_mode |= HCI_LM_MASTER;
105 }
106
107 hci_dev_unlock(hdev);
108 break;
109
110 default:
111 BT_DBG("%s: Command complete: ogf LINK_POLICY ocf %x",
112 hdev->name, ocf);
113 break;
114 }
115}
116
117/* Command Complete OGF HOST_CTL */
118static void hci_cc_host_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
119{
120 __u8 status, param;
121 __u16 setting;
122 struct hci_rp_read_voice_setting *vs;
123 void *sent;
124
125 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
126
127 switch (ocf) {
128 case OCF_RESET:
129 status = *((__u8 *) skb->data);
130 hci_req_complete(hdev, status);
131 break;
132
133 case OCF_SET_EVENT_FLT:
134 status = *((__u8 *) skb->data);
135 if (status) {
136 BT_DBG("%s SET_EVENT_FLT failed %d", hdev->name, status);
137 } else {
138 BT_DBG("%s SET_EVENT_FLT succeseful", hdev->name);
139 }
140 break;
141
142 case OCF_WRITE_AUTH_ENABLE:
143 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_AUTH_ENABLE);
144 if (!sent)
145 break;
146
147 status = *((__u8 *) skb->data);
148 param = *((__u8 *) sent);
149
150 if (!status) {
151 if (param == AUTH_ENABLED)
152 set_bit(HCI_AUTH, &hdev->flags);
153 else
154 clear_bit(HCI_AUTH, &hdev->flags);
155 }
156 hci_req_complete(hdev, status);
157 break;
158
159 case OCF_WRITE_ENCRYPT_MODE:
160 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_ENCRYPT_MODE);
161 if (!sent)
162 break;
163
164 status = *((__u8 *) skb->data);
165 param = *((__u8 *) sent);
166
167 if (!status) {
168 if (param)
169 set_bit(HCI_ENCRYPT, &hdev->flags);
170 else
171 clear_bit(HCI_ENCRYPT, &hdev->flags);
172 }
173 hci_req_complete(hdev, status);
174 break;
175
176 case OCF_WRITE_CA_TIMEOUT:
177 status = *((__u8 *) skb->data);
178 if (status) {
179 BT_DBG("%s OCF_WRITE_CA_TIMEOUT failed %d", hdev->name, status);
180 } else {
181 BT_DBG("%s OCF_WRITE_CA_TIMEOUT succeseful", hdev->name);
182 }
183 break;
184
185 case OCF_WRITE_PG_TIMEOUT:
186 status = *((__u8 *) skb->data);
187 if (status) {
188 BT_DBG("%s OCF_WRITE_PG_TIMEOUT failed %d", hdev->name, status);
189 } else {
190 BT_DBG("%s: OCF_WRITE_PG_TIMEOUT succeseful", hdev->name);
191 }
192 break;
193
194 case OCF_WRITE_SCAN_ENABLE:
195 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE);
196 if (!sent)
197 break;
198
199 status = *((__u8 *) skb->data);
200 param = *((__u8 *) sent);
201
202 BT_DBG("param 0x%x", param);
203
204 if (!status) {
205 clear_bit(HCI_PSCAN, &hdev->flags);
206 clear_bit(HCI_ISCAN, &hdev->flags);
207 if (param & SCAN_INQUIRY)
208 set_bit(HCI_ISCAN, &hdev->flags);
209
210 if (param & SCAN_PAGE)
211 set_bit(HCI_PSCAN, &hdev->flags);
212 }
213 hci_req_complete(hdev, status);
214 break;
215
216 case OCF_READ_VOICE_SETTING:
217 vs = (struct hci_rp_read_voice_setting *) skb->data;
218
219 if (vs->status) {
220 BT_DBG("%s READ_VOICE_SETTING failed %d", hdev->name, vs->status);
221 break;
222 }
223
224 setting = __le16_to_cpu(vs->voice_setting);
225
226 if (hdev->voice_setting != setting ) {
227 hdev->voice_setting = setting;
228
229 BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
230
231 if (hdev->notify) {
232 tasklet_disable(&hdev->tx_task);
233 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
234 tasklet_enable(&hdev->tx_task);
235 }
236 }
237 break;
238
239 case OCF_WRITE_VOICE_SETTING:
240 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING);
241 if (!sent)
242 break;
243
244 status = *((__u8 *) skb->data);
245 setting = __le16_to_cpu(get_unaligned((__u16 *) sent));
246
247 if (!status && hdev->voice_setting != setting) {
248 hdev->voice_setting = setting;
249
250 BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
251
252 if (hdev->notify) {
253 tasklet_disable(&hdev->tx_task);
254 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
255 tasklet_enable(&hdev->tx_task);
256 }
257 }
258 hci_req_complete(hdev, status);
259 break;
260
261 case OCF_HOST_BUFFER_SIZE:
262 status = *((__u8 *) skb->data);
263 if (status) {
264 BT_DBG("%s OCF_BUFFER_SIZE failed %d", hdev->name, status);
265 hci_req_complete(hdev, status);
266 }
267 break;
268
269 default:
270 BT_DBG("%s Command complete: ogf HOST_CTL ocf %x", hdev->name, ocf);
271 break;
272 }
273}
274
275/* Command Complete OGF INFO_PARAM */
276static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
277{
278 struct hci_rp_read_loc_features *lf;
279 struct hci_rp_read_buffer_size *bs;
280 struct hci_rp_read_bd_addr *ba;
281
282 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
283
284 switch (ocf) {
285 case OCF_READ_LOCAL_FEATURES:
286 lf = (struct hci_rp_read_loc_features *) skb->data;
287
288 if (lf->status) {
289 BT_DBG("%s READ_LOCAL_FEATURES failed %d", hdev->name, lf->status);
290 break;
291 }
292
293 memcpy(hdev->features, lf->features, sizeof(hdev->features));
294
295 /* Adjust default settings according to features
296 * supported by device. */
297 if (hdev->features[0] & LMP_3SLOT)
298 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
299
300 if (hdev->features[0] & LMP_5SLOT)
301 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
302
303 if (hdev->features[1] & LMP_HV2)
304 hdev->pkt_type |= (HCI_HV2);
305
306 if (hdev->features[1] & LMP_HV3)
307 hdev->pkt_type |= (HCI_HV3);
308
309 BT_DBG("%s: features 0x%x 0x%x 0x%x", hdev->name, lf->features[0], lf->features[1], lf->features[2]);
310
311 break;
312
313 case OCF_READ_BUFFER_SIZE:
314 bs = (struct hci_rp_read_buffer_size *) skb->data;
315
316 if (bs->status) {
317 BT_DBG("%s READ_BUFFER_SIZE failed %d", hdev->name, bs->status);
318 hci_req_complete(hdev, bs->status);
319 break;
320 }
321
322 hdev->acl_mtu = __le16_to_cpu(bs->acl_mtu);
323 hdev->sco_mtu = bs->sco_mtu ? bs->sco_mtu : 64;
324 hdev->acl_pkts = hdev->acl_cnt = __le16_to_cpu(bs->acl_max_pkt);
325 hdev->sco_pkts = hdev->sco_cnt = __le16_to_cpu(bs->sco_max_pkt);
326
327 BT_DBG("%s mtu: acl %d, sco %d max_pkt: acl %d, sco %d", hdev->name,
328 hdev->acl_mtu, hdev->sco_mtu, hdev->acl_pkts, hdev->sco_pkts);
329 break;
330
331 case OCF_READ_BD_ADDR:
332 ba = (struct hci_rp_read_bd_addr *) skb->data;
333
334 if (!ba->status) {
335 bacpy(&hdev->bdaddr, &ba->bdaddr);
336 } else {
337 BT_DBG("%s: READ_BD_ADDR failed %d", hdev->name, ba->status);
338 }
339
340 hci_req_complete(hdev, ba->status);
341 break;
342
343 default:
344 BT_DBG("%s Command complete: ogf INFO_PARAM ocf %x", hdev->name, ocf);
345 break;
346 }
347}
348
349/* Command Status OGF LINK_CTL */
350static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
351{
352 struct hci_conn *conn;
353 struct hci_cp_create_conn *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_CREATE_CONN);
354
355 if (!cp)
356 return;
357
358 hci_dev_lock(hdev);
359
360 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
361
362 BT_DBG("%s status 0x%x bdaddr %s conn %p", hdev->name,
363 status, batostr(&cp->bdaddr), conn);
364
365 if (status) {
366 if (conn && conn->state == BT_CONNECT) {
367 conn->state = BT_CLOSED;
368 hci_proto_connect_cfm(conn, status);
369 hci_conn_del(conn);
370 }
371 } else {
372 if (!conn) {
373 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
374 if (conn) {
375 conn->out = 1;
376 conn->link_mode |= HCI_LM_MASTER;
377 } else
378 BT_ERR("No memmory for new connection");
379 }
380 }
381
382 hci_dev_unlock(hdev);
383}
384
385static void hci_cs_link_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
386{
387 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
388
389 switch (ocf) {
390 case OCF_CREATE_CONN:
391 hci_cs_create_conn(hdev, status);
392 break;
393
394 case OCF_ADD_SCO:
395 if (status) {
396 struct hci_conn *acl, *sco;
397 struct hci_cp_add_sco *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_ADD_SCO);
398 __u16 handle;
399
400 if (!cp)
401 break;
402
403 handle = __le16_to_cpu(cp->handle);
404
405 BT_DBG("%s Add SCO error: handle %d status 0x%x", hdev->name, handle, status);
406
407 hci_dev_lock(hdev);
408
409 acl = hci_conn_hash_lookup_handle(hdev, handle);
410 if (acl && (sco = acl->link)) {
411 sco->state = BT_CLOSED;
412
413 hci_proto_connect_cfm(sco, status);
414 hci_conn_del(sco);
415 }
416
417 hci_dev_unlock(hdev);
418 }
419 break;
420
421 case OCF_INQUIRY:
422 if (status) {
423 BT_DBG("%s Inquiry error: status 0x%x", hdev->name, status);
424 hci_req_complete(hdev, status);
425 } else {
426 set_bit(HCI_INQUIRY, &hdev->flags);
427 }
428 break;
429
430 default:
431 BT_DBG("%s Command status: ogf LINK_CTL ocf %x status %d",
432 hdev->name, ocf, status);
433 break;
434 }
435}
436
437/* Command Status OGF LINK_POLICY */
438static void hci_cs_link_policy(struct hci_dev *hdev, __u16 ocf, __u8 status)
439{
440 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
441
442 switch (ocf) {
443 default:
444 BT_DBG("%s Command status: ogf HOST_POLICY ocf %x", hdev->name, ocf);
445 break;
446 }
447}
448
449/* Command Status OGF HOST_CTL */
450static void hci_cs_host_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
451{
452 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
453
454 switch (ocf) {
455 default:
456 BT_DBG("%s Command status: ogf HOST_CTL ocf %x", hdev->name, ocf);
457 break;
458 }
459}
460
461/* Command Status OGF INFO_PARAM */
462static void hci_cs_info_param(struct hci_dev *hdev, __u16 ocf, __u8 status)
463{
464 BT_DBG("%s: hci_cs_info_param: ocf 0x%x", hdev->name, ocf);
465
466 switch (ocf) {
467 default:
468 BT_DBG("%s Command status: ogf INFO_PARAM ocf %x", hdev->name, ocf);
469 break;
470 }
471}
472
473/* Inquiry Complete */
474static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
475{
476 __u8 status = *((__u8 *) skb->data);
477
478 BT_DBG("%s status %d", hdev->name, status);
479
480 clear_bit(HCI_INQUIRY, &hdev->flags);
481 hci_req_complete(hdev, status);
482}
483
484/* Inquiry Result */
485static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
486{
45bb4bf0 487 struct inquiry_data data;
1da177e4
LT		 488 struct inquiry_info *info = (struct inquiry_info *) (skb->data + 1);
489 int num_rsp = *((__u8 *) skb->data);
490
491 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
492
45bb4bf0
MH		 493 if (!num_rsp)
494 return;
495
1da177e4 496 hci_dev_lock(hdev);
45bb4bf0 497
1da177e4 498 for (; num_rsp; num_rsp--) {
1da177e4
LT		 499 bacpy(&data.bdaddr, &info->bdaddr);
500 data.pscan_rep_mode = info->pscan_rep_mode;
501 data.pscan_period_mode = info->pscan_period_mode;
502 data.pscan_mode = info->pscan_mode;
503 memcpy(data.dev_class, info->dev_class, 3);
504 data.clock_offset = info->clock_offset;
505 data.rssi = 0x00;
506 info++;
507 hci_inquiry_cache_update(hdev, &data);
508 }
45bb4bf0 509
1da177e4
LT		 510 hci_dev_unlock(hdev);
511}
512
513/* Inquiry Result With RSSI */
514static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
515{
45bb4bf0 516 struct inquiry_data data;
1da177e4
LT		 517 int num_rsp = *((__u8 *) skb->data);
518
519 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
520
45bb4bf0
MH		 521 if (!num_rsp)
522 return;
523
1da177e4 524 hci_dev_lock(hdev);
45bb4bf0
MH		 525
526 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
527 struct inquiry_info_with_rssi_and_pscan_mode *info =
528 (struct inquiry_info_with_rssi_and_pscan_mode *) (skb->data + 1);
529
530 for (; num_rsp; num_rsp--) {
531 bacpy(&data.bdaddr, &info->bdaddr);
532 data.pscan_rep_mode = info->pscan_rep_mode;
533 data.pscan_period_mode = info->pscan_period_mode;
534 data.pscan_mode = info->pscan_mode;
535 memcpy(data.dev_class, info->dev_class, 3);
536 data.clock_offset = info->clock_offset;
537 data.rssi = info->rssi;
538 info++;
539 hci_inquiry_cache_update(hdev, &data);
540 }
541 } else {
542 struct inquiry_info_with_rssi *info =
543 (struct inquiry_info_with_rssi *) (skb->data + 1);
544
545 for (; num_rsp; num_rsp--) {
546 bacpy(&data.bdaddr, &info->bdaddr);
547 data.pscan_rep_mode = info->pscan_rep_mode;
548 data.pscan_period_mode = info->pscan_period_mode;
549 data.pscan_mode = 0x00;
550 memcpy(data.dev_class, info->dev_class, 3);
551 data.clock_offset = info->clock_offset;
552 data.rssi = info->rssi;
553 info++;
554 hci_inquiry_cache_update(hdev, &data);
555 }
1da177e4 556 }
45bb4bf0 557
1da177e4
LT		 558 hci_dev_unlock(hdev);
559}
560
561/* Connect Request */
562static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
563{
564 struct hci_ev_conn_request *ev = (struct hci_ev_conn_request *) skb->data;
565 int mask = hdev->link_mode;
566
567 BT_DBG("%s Connection request: %s type 0x%x", hdev->name,
568 batostr(&ev->bdaddr), ev->link_type);
569
570 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
571
572 if (mask & HCI_LM_ACCEPT) {
573 /* Connection accepted */
574 struct hci_conn *conn;
575 struct hci_cp_accept_conn_req cp;
576
577 hci_dev_lock(hdev);
578 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
579 if (!conn) {
580 if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
581 BT_ERR("No memmory for new connection");
582 hci_dev_unlock(hdev);
583 return;
584 }
585 }
586 memcpy(conn->dev_class, ev->dev_class, 3);
587 conn->state = BT_CONNECT;
588 hci_dev_unlock(hdev);
589
590 bacpy(&cp.bdaddr, &ev->bdaddr);
591
592 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
593 cp.role = 0x00; /* Become master */
594 else
595 cp.role = 0x01; /* Remain slave */
596
597 hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
598 } else {
599 /* Connection rejected */
600 struct hci_cp_reject_conn_req cp;
601
602 bacpy(&cp.bdaddr, &ev->bdaddr);
603 cp.reason = 0x0f;
604 hci_send_cmd(hdev, OGF_LINK_CTL, OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
605 }
606}
607
608/* Connect Complete */
609static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
610{
611 struct hci_ev_conn_complete *ev = (struct hci_ev_conn_complete *) skb->data;
612 struct hci_conn *conn = NULL;
613
614 BT_DBG("%s", hdev->name);
615
616 hci_dev_lock(hdev);
617
618 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
619 if (!conn) {
620 hci_dev_unlock(hdev);
621 return;
622 }
623
624 if (!ev->status) {
625 conn->handle = __le16_to_cpu(ev->handle);
626 conn->state = BT_CONNECTED;
627
628 if (test_bit(HCI_AUTH, &hdev->flags))
629 conn->link_mode |= HCI_LM_AUTH;
630
631 if (test_bit(HCI_ENCRYPT, &hdev->flags))
632 conn->link_mode |= HCI_LM_ENCRYPT;
633
634 /* Set link policy */
635 if (conn->type == ACL_LINK && hdev->link_policy) {
636 struct hci_cp_write_link_policy cp;
637 cp.handle = ev->handle;
638 cp.policy = __cpu_to_le16(hdev->link_policy);
639 hci_send_cmd(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
640 }
641
642 /* Set packet type for incoming connection */
643 if (!conn->out) {
644 struct hci_cp_change_conn_ptype cp;
645 cp.handle = ev->handle;
646 cp.pkt_type = (conn->type == ACL_LINK) ?
647 __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
648 __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
649
650 hci_send_cmd(hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
651 }
652 } else
653 conn->state = BT_CLOSED;
654
655 if (conn->type == ACL_LINK) {
656 struct hci_conn *sco = conn->link;
657 if (sco) {
658 if (!ev->status)
659 hci_add_sco(sco, conn->handle);
660 else {
661 hci_proto_connect_cfm(sco, ev->status);
662 hci_conn_del(sco);
663 }
664 }
665 }
666
667 hci_proto_connect_cfm(conn, ev->status);
668 if (ev->status)
669 hci_conn_del(conn);
670
671 hci_dev_unlock(hdev);
672}
673
674/* Disconnect Complete */
675static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
676{
677 struct hci_ev_disconn_complete *ev = (struct hci_ev_disconn_complete *) skb->data;
678 struct hci_conn *conn = NULL;
679 __u16 handle = __le16_to_cpu(ev->handle);
680
681 BT_DBG("%s status %d", hdev->name, ev->status);
682
683 if (ev->status)
684 return;
685
686 hci_dev_lock(hdev);
687
688 conn = hci_conn_hash_lookup_handle(hdev, handle);
689 if (conn) {
690 conn->state = BT_CLOSED;
691 hci_proto_disconn_ind(conn, ev->reason);
692 hci_conn_del(conn);
693 }
694
695 hci_dev_unlock(hdev);
696}
697
698/* Number of completed packets */
699static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
700{
701 struct hci_ev_num_comp_pkts *ev = (struct hci_ev_num_comp_pkts *) skb->data;
702 __u16 *ptr;
703 int i;
704
705 skb_pull(skb, sizeof(*ev));
706
707 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
708
709 if (skb->len < ev->num_hndl * 4) {
710 BT_DBG("%s bad parameters", hdev->name);
711 return;
712 }
713
714 tasklet_disable(&hdev->tx_task);
715
716 for (i = 0, ptr = (__u16 *) skb->data; i < ev->num_hndl; i++) {
717 struct hci_conn *conn;
718 __u16 handle, count;
719
720 handle = __le16_to_cpu(get_unaligned(ptr++));
721 count = __le16_to_cpu(get_unaligned(ptr++));
722
723 conn = hci_conn_hash_lookup_handle(hdev, handle);
724 if (conn) {
725 conn->sent -= count;
726
727 if (conn->type == SCO_LINK) {
728 if ((hdev->sco_cnt += count) > hdev->sco_pkts)
729 hdev->sco_cnt = hdev->sco_pkts;
730 } else {
731 if ((hdev->acl_cnt += count) > hdev->acl_pkts)
732 hdev->acl_cnt = hdev->acl_pkts;
733 }
734 }
735 }
736 hci_sched_tx(hdev);
737
738 tasklet_enable(&hdev->tx_task);
739}
740
741/* Role Change */
742static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
743{
744 struct hci_ev_role_change *ev = (struct hci_ev_role_change *) skb->data;
745 struct hci_conn *conn = NULL;
746
747 BT_DBG("%s status %d", hdev->name, ev->status);
748
749 hci_dev_lock(hdev);
750
751 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
752 if (conn) {
753 if (!ev->status) {
754 if (ev->role)
755 conn->link_mode &= ~HCI_LM_MASTER;
756 else
757 conn->link_mode |= HCI_LM_MASTER;
758 }
759
760 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
761
762 hci_role_switch_cfm(conn, ev->status, ev->role);
763 }
764
765 hci_dev_unlock(hdev);
766}
767
768/* Authentication Complete */
769static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
770{
771 struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
772 struct hci_conn *conn = NULL;
773 __u16 handle = __le16_to_cpu(ev->handle);
774
775 BT_DBG("%s status %d", hdev->name, ev->status);
776
777 hci_dev_lock(hdev);
778
779 conn = hci_conn_hash_lookup_handle(hdev, handle);
780 if (conn) {
781 if (!ev->status)
782 conn->link_mode |= HCI_LM_AUTH;
783
784 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
785
786 hci_auth_cfm(conn, ev->status);
787
788 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
789 if (!ev->status) {
790 struct hci_cp_set_conn_encrypt cp;
791 cp.handle = __cpu_to_le16(conn->handle);
792 cp.encrypt = 1;
793 hci_send_cmd(conn->hdev, OGF_LINK_CTL,
794 OCF_SET_CONN_ENCRYPT,
795 sizeof(cp), &cp);
796 } else {
797 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
798 hci_encrypt_cfm(conn, ev->status, 0x00);
799 }
800 }
801 }
802
803 hci_dev_unlock(hdev);
804}
805
806/* Encryption Change */
807static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
808{
809 struct hci_ev_encrypt_change *ev = (struct hci_ev_encrypt_change *) skb->data;
810 struct hci_conn *conn = NULL;
811 __u16 handle = __le16_to_cpu(ev->handle);
812
813 BT_DBG("%s status %d", hdev->name, ev->status);
814
815 hci_dev_lock(hdev);
816
817 conn = hci_conn_hash_lookup_handle(hdev, handle);
818 if (conn) {
819 if (!ev->status) {
820 if (ev->encrypt)
821 conn->link_mode |= HCI_LM_ENCRYPT;
822 else
823 conn->link_mode &= ~HCI_LM_ENCRYPT;
824 }
825
826 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
827
828 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
829 }
830
831 hci_dev_unlock(hdev);
832}
833
834/* Change Connection Link Key Complete */
835static inline void hci_change_conn_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
836{
837 struct hci_ev_change_conn_link_key_complete *ev = (struct hci_ev_change_conn_link_key_complete *) skb->data;
838 struct hci_conn *conn = NULL;
839 __u16 handle = __le16_to_cpu(ev->handle);
840
841 BT_DBG("%s status %d", hdev->name, ev->status);
842
843 hci_dev_lock(hdev);
844
845 conn = hci_conn_hash_lookup_handle(hdev, handle);
846 if (conn) {
847 if (!ev->status)
848 conn->link_mode |= HCI_LM_SECURE;
849
850 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
851
852 hci_key_change_cfm(conn, ev->status);
853 }
854
855 hci_dev_unlock(hdev);
856}
857
858/* Pin Code Request*/
859static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
860{
861}
862
863/* Link Key Request */
864static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
865{
866}
867
868/* Link Key Notification */
869static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
870{
871}
872
873/* Clock Offset */
874static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
875{
876 struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
877 struct hci_conn *conn = NULL;
878 __u16 handle = __le16_to_cpu(ev->handle);
879
880 BT_DBG("%s status %d", hdev->name, ev->status);
881
882 hci_dev_lock(hdev);
883
884 conn = hci_conn_hash_lookup_handle(hdev, handle);
885 if (conn && !ev->status) {
886 struct inquiry_entry *ie;
887
888 if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
889 ie->data.clock_offset = ev->clock_offset;
890 ie->timestamp = jiffies;
891 }
892 }
893
894 hci_dev_unlock(hdev);
895}
896
85a1e930
MH		 897/* Page Scan Repetition Mode */
898static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
899{
900 struct hci_ev_pscan_rep_mode *ev = (struct hci_ev_pscan_rep_mode *) skb->data;
901 struct inquiry_entry *ie;
902
903 BT_DBG("%s", hdev->name);
904
905 hci_dev_lock(hdev);
906
907 if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr))) {
908 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
909 ie->timestamp = jiffies;
910 }
911
912 hci_dev_unlock(hdev);
913}
914
1da177e4
LT		 915void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
916{
917 struct hci_event_hdr *hdr = (struct hci_event_hdr *) skb->data;
918 struct hci_ev_cmd_complete *ec;
919 struct hci_ev_cmd_status *cs;
920 u16 opcode, ocf, ogf;
921
922 skb_pull(skb, HCI_EVENT_HDR_SIZE);
923
924 BT_DBG("%s evt 0x%x", hdev->name, hdr->evt);
925
926 switch (hdr->evt) {
927 case HCI_EV_NUM_COMP_PKTS:
928 hci_num_comp_pkts_evt(hdev, skb);
929 break;
930
931 case HCI_EV_INQUIRY_COMPLETE:
932 hci_inquiry_complete_evt(hdev, skb);
933 break;
934
935 case HCI_EV_INQUIRY_RESULT:
936 hci_inquiry_result_evt(hdev, skb);
937 break;
938
939 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
940 hci_inquiry_result_with_rssi_evt(hdev, skb);
941 break;
942
943 case HCI_EV_CONN_REQUEST:
944 hci_conn_request_evt(hdev, skb);
945 break;
946
947 case HCI_EV_CONN_COMPLETE:
948 hci_conn_complete_evt(hdev, skb);
949 break;
950
951 case HCI_EV_DISCONN_COMPLETE:
952 hci_disconn_complete_evt(hdev, skb);
953 break;
954
955 case HCI_EV_ROLE_CHANGE:
956 hci_role_change_evt(hdev, skb);
957 break;
958
959 case HCI_EV_AUTH_COMPLETE:
960 hci_auth_complete_evt(hdev, skb);
961 break;
962
963 case HCI_EV_ENCRYPT_CHANGE:
964 hci_encrypt_change_evt(hdev, skb);
965 break;
966
967 case HCI_EV_CHANGE_CONN_LINK_KEY_COMPLETE:
968 hci_change_conn_link_key_complete_evt(hdev, skb);
969 break;
970
971 case HCI_EV_PIN_CODE_REQ:
972 hci_pin_code_request_evt(hdev, skb);
973 break;
974
975 case HCI_EV_LINK_KEY_REQ:
976 hci_link_key_request_evt(hdev, skb);
977 break;
978
979 case HCI_EV_LINK_KEY_NOTIFY:
980 hci_link_key_notify_evt(hdev, skb);
981 break;
982
983 case HCI_EV_CLOCK_OFFSET:
984 hci_clock_offset_evt(hdev, skb);
985 break;
986
85a1e930
MH		 987 case HCI_EV_PSCAN_REP_MODE:
988 hci_pscan_rep_mode_evt(hdev, skb);
989 break;
990
1da177e4
LT		 991 case HCI_EV_CMD_STATUS:
992 cs = (struct hci_ev_cmd_status *) skb->data;
993 skb_pull(skb, sizeof(cs));
994
995 opcode = __le16_to_cpu(cs->opcode);
996 ogf = hci_opcode_ogf(opcode);
997 ocf = hci_opcode_ocf(opcode);
998
999 switch (ogf) {
1000 case OGF_INFO_PARAM:
1001 hci_cs_info_param(hdev, ocf, cs->status);
1002 break;
1003
1004 case OGF_HOST_CTL:
1005 hci_cs_host_ctl(hdev, ocf, cs->status);
1006 break;
1007
1008 case OGF_LINK_CTL:
1009 hci_cs_link_ctl(hdev, ocf, cs->status);
1010 break;
1011
1012 case OGF_LINK_POLICY:
1013 hci_cs_link_policy(hdev, ocf, cs->status);
1014 break;
1015
1016 default:
1017 BT_DBG("%s Command Status OGF %x", hdev->name, ogf);
1018 break;
1019 }
1020
1021 if (cs->ncmd) {
1022 atomic_set(&hdev->cmd_cnt, 1);
1023 if (!skb_queue_empty(&hdev->cmd_q))
1024 hci_sched_cmd(hdev);
1025 }
1026 break;
1027
1028 case HCI_EV_CMD_COMPLETE:
1029 ec = (struct hci_ev_cmd_complete *) skb->data;
1030 skb_pull(skb, sizeof(*ec));
1031
1032 opcode = __le16_to_cpu(ec->opcode);
1033 ogf = hci_opcode_ogf(opcode);
1034 ocf = hci_opcode_ocf(opcode);
1035
1036 switch (ogf) {
1037 case OGF_INFO_PARAM:
1038 hci_cc_info_param(hdev, ocf, skb);
1039 break;
1040
1041 case OGF_HOST_CTL:
1042 hci_cc_host_ctl(hdev, ocf, skb);
1043 break;
1044
1045 case OGF_LINK_CTL:
1046 hci_cc_link_ctl(hdev, ocf, skb);
1047 break;
1048
1049 case OGF_LINK_POLICY:
1050 hci_cc_link_policy(hdev, ocf, skb);
1051 break;
1052
1053 default:
1054 BT_DBG("%s Command Completed OGF %x", hdev->name, ogf);
1055 break;
1056 }
1057
1058 if (ec->ncmd) {
1059 atomic_set(&hdev->cmd_cnt, 1);
1060 if (!skb_queue_empty(&hdev->cmd_q))
1061 hci_sched_cmd(hdev);
1062 }
1063 break;
1064 }
1065
1066 kfree_skb(skb);
1067 hdev->stat.evt_rx++;
1068}
1069
1070/* Generate internal stack event */
1071void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
1072{
1073 struct hci_event_hdr *hdr;
1074 struct hci_ev_stack_internal *ev;
1075 struct sk_buff *skb;
1076
1077 skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
1078 if (!skb)
1079 return;
1080
1081 hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
1082 hdr->evt = HCI_EV_STACK_INTERNAL;
1083 hdr->plen = sizeof(*ev) + dlen;
1084
1085 ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
1086 ev->type = type;
1087 memcpy(ev->data, data, dlen);
1088
576c7d85 1089 bt_cb(skb)->incoming = 1;
a61bbcf2 1090 __net_timestamp(skb);
576c7d85 1091
0d48d939 1092 bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
1da177e4
LT		 1093 skb->dev = (void *) hdev;
1094 hci_send_to_sock(hdev, skb);
1095 kfree_skb(skb);
1096}
kernel source for telekom puls (alcatel/mediatek)