Outline ![]()
Files ![]()
loading...
SourceVu![]()
ESP-IDF Framework and Examples![]()
ESP-IDF![]()
components/bt/host/bluedroid/bta/gatt/bta_gattc_utils.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
/******************************************************************************
*
* Copyright (C) 2003-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This file contains the GATT client utility function.
*
******************************************************************************/
#include "common/bt_target.h"
#if defined(GATTC_INCLUDED) && (GATTC_INCLUDED == TRUE)
#include <string.h>
#include "device/bdaddr.h"
// #include "btif/include/btif_util.h"
#include "bta/utl.h"
#include "bta/bta_sys.h"
#include "bta_gattc_int.h"
#include "stack/l2c_api.h"
#include "osi/allocator.h"
/*****************************************************************************
** Constants
*****************************************************************************/
static const UINT8 base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const BD_ADDR dummy_bda = {0, 0, 0, 0, 0, 0};
#define GATTC_COMMAND_QUEUE_SIZE_MAX 30
/*******************************************************************************
**
** Function bta_gatt_convert_uuid16_to_uuid128
**
** Description Convert a 16 bits UUID to be an standard 128 bits one.
**
** Returns TRUE if two uuid match; FALSE otherwise.
**
*******************************************************************************/
void bta_gatt_convert_uuid16_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT16 uuid_16)
{
UINT8 *p = &uuid_128[LEN_UUID_128 - 4];
memcpy (uuid_128, base_uuid, LEN_UUID_128);
UINT16_TO_STREAM(p, uuid_16);
}
/*******************************************************************************
**
** Function bta_gattc_uuid_compare
**
** Description Compare two UUID to see if they are the same.
**
** Returns TRUE if two uuid match; FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_gattc_uuid_compare (const tBT_UUID *p_src, const tBT_UUID *p_tar, BOOLEAN is_precise)
{
UINT8 su[LEN_UUID_128], tu[LEN_UUID_128];
const UINT8 *ps, *pt;
/* any of the UUID is unspecified */
if (p_src == 0 || p_tar == 0) {
if (is_precise) {
return FALSE;
} else {
return TRUE;
}
}
/* If both are 16-bit, we can do a simple compare */
if (p_src->len == 2 && p_tar->len == 2) {
return p_src->uu.uuid16 == p_tar->uu.uuid16;
}
/* One or both of the UUIDs is 128-bit */
if (p_src->len == LEN_UUID_16) {
/* convert a 16 bits UUID to 128 bits value */
bta_gatt_convert_uuid16_to_uuid128(su, p_src->uu.uuid16);
ps = su;
} else {
ps = p_src->uu.uuid128;
}
if (p_tar->len == LEN_UUID_16) {
/* convert a 16 bits UUID to 128 bits value */
bta_gatt_convert_uuid16_to_uuid128(tu, p_tar->uu.uuid16);
pt = tu;
} else {
pt = p_tar->uu.uuid128;
}
return (memcmp(ps, pt, LEN_UUID_128) == 0);
}
/*******************************************************************************
**
** Function bta_gattc_cl_get_regcb
**
** Description get registration control block by client interface.
**
** Returns pointer to the regcb
**
*******************************************************************************/
tBTA_GATTC_RCB *bta_gattc_cl_get_regcb(UINT8 client_if)
{
UINT8 i = 0;
tBTA_GATTC_RCB *p_clrcb = &bta_gattc_cb.cl_rcb[0];
for (i = 0; i < BTA_GATTC_CL_MAX; i ++, p_clrcb ++) {
if (p_clrcb->in_use &&
p_clrcb->client_if == client_if) {
return p_clrcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_num_reg_app
**
** Description find the number of registered application.
**
** Returns pointer to the regcb
**
*******************************************************************************/
UINT8 bta_gattc_num_reg_app(void)
{
UINT8 i = 0, j = 0;
for (i = 0; i < BTA_GATTC_CL_MAX; i ++) {
if (bta_gattc_cb.cl_rcb[i].in_use) {
j ++;
}
}
return j;
}
/*******************************************************************************
**
** Function bta_gattc_find_clcb_by_cif
**
** Description get clcb by client interface and remote bd address
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_clcb_by_cif (UINT8 client_if, BD_ADDR remote_bda,
tBTA_TRANSPORT transport)
{
tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++) {
if (p_clcb->in_use &&
p_clcb->p_rcb->client_if == client_if &&
p_clcb->transport == transport &&
bdcmp(p_clcb->bda, remote_bda) == 0) {
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_find_clcb_by_conn_id
**
** Description get clcb by connection ID
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_clcb_by_conn_id (UINT16 conn_id)
{
tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++) {
if (p_clcb->in_use &&
p_clcb->bta_conn_id == conn_id) {
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_clcb_alloc
**
** Description allocate CLCB
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_clcb_alloc(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
tBTA_TRANSPORT transport)
{
UINT8 i_clcb = 0;
tBTA_GATTC_CLCB *p_clcb = NULL;
for (i_clcb = 0; i_clcb < BTA_GATTC_CLCB_MAX; i_clcb++) {
if (!bta_gattc_cb.clcb[i_clcb].in_use) {
#if BTA_GATT_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_gattc_clcb_alloc: found clcb[%d] available", i_clcb);
#endif
p_clcb = &bta_gattc_cb.clcb[i_clcb];
p_clcb->in_use = TRUE;
p_clcb->status = BTA_GATT_OK;
p_clcb->transport = transport;
bdcpy(p_clcb->bda, remote_bda);
p_clcb->searched_service_source = BTA_GATTC_SERVICE_INFO_FROM_UNKNOWN;
p_clcb->p_rcb = bta_gattc_cl_get_regcb(client_if);
if (p_clcb->p_cmd_list == NULL) {
p_clcb->p_cmd_list = list_new(osi_free_func);
}
if ((p_clcb->p_srcb = bta_gattc_find_srcb(remote_bda)) == NULL) {
p_clcb->p_srcb = bta_gattc_srcb_alloc(remote_bda);
}
if (p_clcb->p_rcb != NULL && p_clcb->p_srcb != NULL) {
p_clcb->p_srcb->num_clcb ++;
p_clcb->p_rcb->num_clcb ++;
} else {
/* release this clcb if clcb or srcb allocation failed */
p_clcb->in_use = FALSE;
p_clcb = NULL;
}
break;
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function bta_gattc_find_alloc_clcb
**
** Description find or allocate CLCB if not found.
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_alloc_clcb(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
tBTA_TRANSPORT transport)
{
tBTA_GATTC_CLCB *p_clcb ;
if ((p_clcb = bta_gattc_find_clcb_by_cif(client_if, remote_bda, transport)) == NULL) {
p_clcb = bta_gattc_clcb_alloc(client_if, remote_bda, transport);
}
return p_clcb;
}
/*******************************************************************************
**
** Function bta_gattc_clcb_dealloc
**
** Description Deallocte a clcb
**
** Returns pointer to the clcb
**
*******************************************************************************/
void bta_gattc_clcb_dealloc(tBTA_GATTC_CLCB *p_clcb)
{
tBTA_GATTC_SERV *p_srcb = NULL;
if (p_clcb) {
p_srcb = p_clcb->p_srcb;
if (p_srcb->num_clcb) {
p_srcb->num_clcb --;
}
if (p_clcb->p_rcb->num_clcb) {
p_clcb->p_rcb->num_clcb --;
}
/* if the srcb is no longer needed, reset the state */
if ( p_srcb->num_clcb == 0) {
p_srcb->connected = FALSE;
p_srcb->state = BTA_GATTC_SERV_IDLE;
p_srcb->mtu = 0;
/* clean up cache */
if (p_srcb->p_srvc_cache) {
list_free(p_srcb->p_srvc_cache);
p_srcb->p_srvc_cache = NULL;
}
}
if ( p_clcb->p_q_cmd != NULL && !list_contains(p_clcb->p_cmd_list, p_clcb->p_q_cmd)){
osi_free(p_clcb->p_q_cmd);
p_clcb->p_q_cmd = NULL;
}
// don't forget to clear the command queue before dealloc the clcb.
list_clear(p_clcb->p_cmd_list);
osi_free((void *)p_clcb->p_cmd_list);
p_clcb->p_cmd_list = NULL;
//osi_free_and_reset((void **)&p_clcb->p_q_cmd);
memset(p_clcb, 0, sizeof(tBTA_GATTC_CLCB));
} else {
APPL_TRACE_ERROR("bta_gattc_clcb_dealloc p_clcb=NULL");
}
}
extern void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg);
void bta_gattc_clcb_dealloc_by_conn_id(UINT16 conn_id)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb) {
tBTA_GATTC_RCB *p_clreg = p_clcb->p_rcb;
bta_gattc_clcb_dealloc(p_clcb);
// there is a workaround: if there is no connect, we will reset it.
if (p_clreg && p_clreg->num_clcb == 0 && p_clreg->dereg_pending) {
bta_gattc_deregister_cmpl(p_clreg);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_find_srcb
**
** Description find server cache by remote bd address currently in use
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_find_srcb(BD_ADDR bda)
{
tBTA_GATTC_SERV *p_srcb = &bta_gattc_cb.known_server[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_srcb ++) {
if (p_srcb->in_use && bdcmp(p_srcb->server_bda, bda) == 0) {
return p_srcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_find_srvr_cache
**
** Description find server cache by remote bd address
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_find_srvr_cache(BD_ADDR bda)
{
tBTA_GATTC_SERV *p_srcb = &bta_gattc_cb.known_server[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_srcb ++) {
if (bdcmp(p_srcb->server_bda, bda) == 0) {
return p_srcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_find_scb_by_cid
**
** Description find server control block by connection ID
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_find_scb_by_cid (UINT16 conn_id)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb) {
return p_clcb->p_srcb;
} else {
return NULL;
}
}
/*******************************************************************************
**
** Function bta_gattc_srcb_alloc
**
** Description allocate server cache control block
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_srcb_alloc(BD_ADDR bda)
{
tBTA_GATTC_SERV *p_tcb = &bta_gattc_cb.known_server[0],
*p_recycle = NULL;
BOOLEAN found = FALSE;
UINT8 i;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_tcb ++) {
if (!p_tcb->in_use) {
found = TRUE;
break;
} else if (!p_tcb->connected) {
p_recycle = p_tcb;
}
}
/* if not found, try to recycle one known device */
if (!found && !p_recycle) {
p_tcb = NULL;
}
else if (!found && p_recycle) {
p_tcb = p_recycle;
}
if (p_tcb != NULL)
{
if (p_tcb->p_srvc_cache != NULL) {
list_free(p_tcb->p_srvc_cache);
p_tcb->p_srvc_cache = NULL;
}
osi_free(p_tcb->p_srvc_list);
p_tcb->p_srvc_list = NULL;
//osi_free_and_reset((void **)&p_tcb->p_srvc_list);
memset(p_tcb, 0 , sizeof(tBTA_GATTC_SERV));
p_tcb->in_use = TRUE;
bdcpy(p_tcb->server_bda, bda);
}
return p_tcb;
}
static BOOLEAN bta_gattc_has_prepare_command_in_queue(tBTA_GATTC_CLCB *p_clcb)
{
assert(p_clcb != NULL);
for(list_node_t *sn = list_begin(p_clcb->p_cmd_list);
sn != list_end(p_clcb->p_cmd_list); sn = list_next(sn)) {
tBTA_GATTC_DATA *cmd_data = (tBTA_GATTC_DATA *)list_node(sn);
if (cmd_data != NULL && ((cmd_data->hdr.event == BTA_GATTC_API_WRITE_EVT &&
cmd_data->api_write.write_type == BTA_GATTC_WRITE_PREPARE) ||
cmd_data->hdr.event == BTA_GATTC_API_EXEC_EVT)) {
return TRUE;
}
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_enqueue
**
** Description enqueue a client request in clcb.
**
** Returns success or failure.
**
*******************************************************************************/
BOOLEAN bta_gattc_enqueue(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data = {0};
if (p_clcb->p_q_cmd == NULL) {
p_clcb->p_q_cmd = p_data;
return TRUE;
} else if ((p_data->hdr.event == BTA_GATTC_API_WRITE_EVT &&
p_data->api_write.write_type == BTA_GATTC_WRITE_PREPARE) &&
((p_clcb->p_q_cmd->hdr.event == BTA_GATTC_API_WRITE_EVT &&
p_clcb->p_q_cmd->api_write.write_type == BTA_GATTC_WRITE_PREPARE) ||
bta_gattc_has_prepare_command_in_queue(p_clcb))) {
APPL_TRACE_DEBUG("%s(), prepare offset = %d", __func__, p_data->api_write.offset);
cb_data.write.status = BTA_GATT_CONGESTED;
cb_data.write.handle = p_data->api_write.handle;
cb_data.write.conn_id = p_clcb->bta_conn_id;
cb_data.write.offset = p_data->api_write.offset;
/* write complete, callback */
if (p_clcb->p_rcb->p_cback != NULL) {
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_PREP_WRITE_EVT, (tBTA_GATTC *)&cb_data);
}
return FALSE;
}
else if (p_clcb->p_cmd_list) {
UINT16 len = 0;
tBTA_GATTC_DATA *cmd_data = NULL;
if (list_length(p_clcb->p_cmd_list) >= GATTC_COMMAND_QUEUE_SIZE_MAX) {
APPL_TRACE_ERROR("%s(), the gattc command queue is full.", __func__);
cb_data.status = GATT_BUSY;
cb_data.queue_full.conn_id = p_clcb->bta_conn_id;
cb_data.queue_full.is_full = TRUE;
p_clcb->is_full = TRUE;
if (p_clcb->p_rcb->p_cback != NULL) {
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_QUEUE_FULL_EVT, (tBTA_GATTC *)&cb_data);
}
return FALSE;
}
if (p_data->hdr.event == BTA_GATTC_API_WRITE_EVT) {
len = p_data->api_write.len;
if ((cmd_data = (tBTA_GATTC_DATA *)osi_malloc(sizeof(tBTA_GATTC_DATA) + len)) != NULL) {
memset(cmd_data, 0, sizeof(tBTA_GATTC_DATA) + len);
memcpy(cmd_data, p_data, sizeof(tBTA_GATTC_DATA));
cmd_data->api_write.p_value = (UINT8 *)(cmd_data + 1);
memcpy(cmd_data->api_write.p_value, p_data->api_write.p_value, len);
} else {
APPL_TRACE_ERROR("%s(), line = %d, alloc fail, no memory.", __func__, __LINE__);
return FALSE;
}
} else {
if ((cmd_data = (tBTA_GATTC_DATA *)osi_malloc(sizeof(tBTA_GATTC_DATA))) != NULL) {
memset(cmd_data, 0, sizeof(tBTA_GATTC_DATA));
memcpy(cmd_data, p_data, sizeof(tBTA_GATTC_DATA));
} else {
APPL_TRACE_ERROR("%s(), line = %d, alloc fail, no memory.", __func__, __LINE__);
return FALSE;
}
}
//store the command to the command list.
list_append(p_clcb->p_cmd_list, (void *)cmd_data);
return FALSE;
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_check_notif_registry
**
** Description check if the service notificaition has been registered.
**
** Returns
**
*******************************************************************************/
BOOLEAN bta_gattc_check_notif_registry(tBTA_GATTC_RCB *p_clreg, tBTA_GATTC_SERV *p_srcb,
tBTA_GATTC_NOTIFY *p_notify)
{
UINT8 i;
for (i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
{
if (p_clreg->notif_reg[i].in_use &&
bdcmp(p_clreg->notif_reg[i].remote_bda, p_srcb->server_bda) == 0 &&
p_clreg->notif_reg[i].handle == p_notify->handle)
{
APPL_TRACE_DEBUG("Notification registered!");
return TRUE;
}
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_clear_notif_registration
**
** Description Clear up the notification registration information by BD_ADDR.
** Where handle is between start_handle and end_handle, and
** start_handle and end_handle are boundaries of service
** containing characteristic.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_clear_notif_registration(tBTA_GATTC_SERV *p_srcb, UINT16 conn_id,
UINT16 start_handle, UINT16 end_handle)
{
BD_ADDR remote_bda;
tBTA_GATTC_IF gatt_if;
tBTA_GATTC_RCB *p_clrcb ;
UINT8 i;
tGATT_TRANSPORT transport;
UINT16 handle = 0;
if (GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport)) {
if ((p_clrcb = bta_gattc_cl_get_regcb(gatt_if)) != NULL) {
for (i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
if (p_clrcb->notif_reg[i].in_use &&
!bdcmp(p_clrcb->notif_reg[i].remote_bda, remote_bda))
{
/* It's enough to get service or characteristic handle, as
* clear boundaries are always around service.
*/
handle = p_clrcb->notif_reg[i].handle;
if (handle >= start_handle && handle <= end_handle) {
memset(&p_clrcb->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
}
}
}
}
} else {
APPL_TRACE_ERROR("can not clear indication/notif registration for unknown app");
}
return;
}
/*******************************************************************************
**
** Function bta_gattc_clear_notif_registration_by_bda
**
** Description Clear up the notification registration information by BD_ADDR.
**
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_clear_notif_registration_by_bda(tBTA_GATTC_RCB *p_clrcb, BD_ADDR remote_bda)
{
if(p_clrcb == NULL) {
return;
}
for (uint8_t i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
if (p_clrcb->notif_reg[i].in_use &&
!bdcmp(p_clrcb->notif_reg[i].remote_bda, remote_bda))
{
memset(&p_clrcb->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
}
}
}
/*******************************************************************************
**
** Function bta_gattc_mark_bg_conn
**
** Description mark background connection status when a bg connection is initiated
** or terminated.
**
** Returns TRUE if success; FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_gattc_mark_bg_conn (tBTA_GATTC_IF client_if, BD_ADDR_PTR remote_bda_ptr,
BOOLEAN add, BOOLEAN is_listen)
{
tBTA_GATTC_BG_TCK *p_bg_tck = &bta_gattc_cb.bg_track[0];
UINT8 i = 0;
tBTA_GATTC_CIF_MASK *p_cif_mask;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_bg_tck ++) {
if (p_bg_tck->in_use &&
((remote_bda_ptr != NULL && bdcmp(p_bg_tck->remote_bda, remote_bda_ptr) == 0) ||
(remote_bda_ptr == NULL && bdcmp(p_bg_tck->remote_bda, dummy_bda) == 0))) {
p_cif_mask = is_listen ? &p_bg_tck->cif_adv_mask : &p_bg_tck->cif_mask;
if (add)
/* mask on the cif bit */
{
*p_cif_mask |= (1 << (client_if - 1));
} else {
if (client_if != 0) {
*p_cif_mask &= (~(1 << (client_if - 1)));
} else {
*p_cif_mask = 0;
}
}
/* no BG connection for this device, make it available */
if (p_bg_tck->cif_mask == 0 && p_bg_tck->cif_adv_mask == 0) {
memset(p_bg_tck, 0, sizeof(tBTA_GATTC_BG_TCK));
}
return TRUE;
}
}
if (!add) {
if (remote_bda_ptr) {
#if (!CONFIG_BT_STACK_NO_LOG)
char bdstr[18] = {0};
#endif
APPL_TRACE_WARNING("%s unable to find the bg connection mask for: %s", __func__,
bdaddr_to_string((bt_bdaddr_t *)remote_bda_ptr, bdstr, sizeof(bdstr)));
}
return FALSE;
} else { /* adding a new device mask */
for (i = 0, p_bg_tck = &bta_gattc_cb.bg_track[0];
i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_bg_tck ++) {
if (!p_bg_tck->in_use) {
p_bg_tck->in_use = TRUE;
if (remote_bda_ptr) {
bdcpy(p_bg_tck->remote_bda, remote_bda_ptr);
} else {
bdcpy(p_bg_tck->remote_bda, dummy_bda);
}
p_cif_mask = is_listen ? &p_bg_tck->cif_adv_mask : &p_bg_tck->cif_mask;
*p_cif_mask = (1 << (client_if - 1));
return TRUE;
}
}
APPL_TRACE_ERROR("no available space to mark the bg connection status");
return FALSE;
}
}
/*******************************************************************************
**
** Function bta_gattc_check_bg_conn
**
** Description check if this is a background connection background connection.
**
** Returns TRUE if success; FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_gattc_check_bg_conn (tBTA_GATTC_IF client_if, BD_ADDR remote_bda, UINT8 role)
{
tBTA_GATTC_BG_TCK *p_bg_tck = &bta_gattc_cb.bg_track[0];
UINT8 i = 0;
BOOLEAN is_bg_conn = FALSE;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX && !is_bg_conn; i ++, p_bg_tck ++) {
if (p_bg_tck->in_use &&
(bdcmp(p_bg_tck->remote_bda, remote_bda) == 0 ||
bdcmp(p_bg_tck->remote_bda, dummy_bda) == 0)) {
if (((p_bg_tck->cif_mask & (1 << (client_if - 1))) != 0) &&
role == HCI_ROLE_MASTER) {
is_bg_conn = TRUE;
}
if (((p_bg_tck->cif_adv_mask & (1 << (client_if - 1))) != 0) &&
role == HCI_ROLE_SLAVE) {
is_bg_conn = TRUE;
}
}
}
return is_bg_conn;
}
/*******************************************************************************
**
** Function bta_gattc_send_open_cback
**
** Description send open callback
**
** Returns
**
*******************************************************************************/
void bta_gattc_send_open_cback( tBTA_GATTC_RCB *p_clreg, tBTA_GATT_STATUS status,
BD_ADDR remote_bda, UINT16 conn_id,
tBTA_TRANSPORT transport, UINT16 mtu)
{
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.open.status = status;
cb_data.open.client_if = p_clreg->client_if;
cb_data.open.conn_id = conn_id;
cb_data.open.mtu = mtu;
cb_data.open.transport = transport;
bdcpy(cb_data.open.remote_bda, remote_bda);
(*p_clreg->p_cback)(BTA_GATTC_OPEN_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_send_connect_cback
**
** Description send connect callback
**
** Returns
**
*******************************************************************************/
void bta_gattc_send_connect_cback( tBTA_GATTC_RCB *p_clreg, BD_ADDR remote_bda, UINT16 conn_id,
tBTA_GATT_CONN_PARAMS conn_params, UINT8 link_role, UINT8 ble_addr_type, UINT16 conn_handle)
{
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.connect.client_if = p_clreg->client_if;
cb_data.connect.conn_id = conn_id;
cb_data.connect.link_role = link_role;
cb_data.connect.conn_params.interval = conn_params.interval;
cb_data.connect.conn_params.latency = conn_params.latency;
cb_data.connect.conn_params.timeout = conn_params.timeout;
bdcpy(cb_data.connect.remote_bda, remote_bda);
cb_data.connect.ble_addr_type = ble_addr_type;
cb_data.connect.conn_handle = conn_handle;
(*p_clreg->p_cback)(BTA_GATTC_CONNECT_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_send_disconnect_cback
**
** Description send disconnect callback
**
** Returns
**
*******************************************************************************/
void bta_gattc_send_disconnect_cback( tBTA_GATTC_RCB *p_clreg, tGATT_DISCONN_REASON reason,
BD_ADDR remote_bda, UINT16 conn_id)
{
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.disconnect.reason = reason;
cb_data.disconnect.client_if = p_clreg->client_if;
cb_data.disconnect.conn_id = conn_id;
bdcpy(cb_data.disconnect.remote_bda, remote_bda);
(*p_clreg->p_cback)(BTA_GATTC_DISCONNECT_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_conn_alloc
**
** Description allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CONN *bta_gattc_conn_alloc(BD_ADDR remote_bda)
{
UINT8 i_conn = 0;
tBTA_GATTC_CONN *p_conn = &bta_gattc_cb.conn_track[0];
for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++) {
if (!p_conn->in_use) {
#if BTA_GATT_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_gattc_conn_alloc: found conn_track[%d] available", i_conn);
#endif
p_conn->in_use = TRUE;
bdcpy(p_conn->remote_bda, remote_bda);
return p_conn;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_conn_find
**
** Description allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CONN *bta_gattc_conn_find(BD_ADDR remote_bda)
{
UINT8 i_conn = 0;
tBTA_GATTC_CONN *p_conn = &bta_gattc_cb.conn_track[0];
for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++) {
if (p_conn->in_use && bdcmp(remote_bda, p_conn->remote_bda) == 0) {
#if BTA_GATT_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_gattc_conn_find: found conn_track[%d] matched", i_conn);
#endif
return p_conn;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_conn_find_alloc
**
** Description find or allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CONN *bta_gattc_conn_find_alloc(BD_ADDR remote_bda)
{
tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find (remote_bda);
if (p_conn == NULL) {
p_conn = bta_gattc_conn_alloc(remote_bda);
}
return p_conn;
}
/*******************************************************************************
**
** Function bta_gattc_conn_dealloc
**
** Description de-allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
BOOLEAN bta_gattc_conn_dealloc(BD_ADDR remote_bda)
{
tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find (remote_bda);
if (p_conn != NULL) {
p_conn->in_use = FALSE;
memset(p_conn->remote_bda, 0, BD_ADDR_LEN);
return TRUE;
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_find_int_conn_clcb
**
** Description try to locate a clcb when an internal connection event arrives.
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_int_conn_clcb(tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_CLCB *p_clcb = NULL;
if (p_msg->int_conn.role == HCI_ROLE_SLAVE) {
bta_gattc_conn_find_alloc(p_msg->int_conn.remote_bda);
}
/* try to locate a logic channel */
if ((p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport)) == NULL) {
/* for a background connection or listening connection */
if (/*p_msg->int_conn.role == HCI_ROLE_SLAVE || */
bta_gattc_check_bg_conn(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.role)) {
/* allocate a new channel */
p_clcb = bta_gattc_clcb_alloc(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function bta_gattc_find_int_disconn_clcb
**
** Description try to locate a clcb when an internal disconnect callback arrives.
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_int_disconn_clcb(tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_CLCB *p_clcb = NULL;
bta_gattc_conn_dealloc(p_msg->int_conn.remote_bda);
if ((p_clcb = bta_gattc_find_clcb_by_conn_id(p_msg->int_conn.hdr.layer_specific)) == NULL) {
/* connection attempt failed, send connection callback event */
p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
}
if (p_clcb == NULL) {
APPL_TRACE_DEBUG(" disconnection ID: [%d] not used by BTA",
p_msg->int_conn.hdr.layer_specific);
}
return p_clcb;
}
void bta_to_btif_uuid(bt_uuid_t *p_dest, tBT_UUID *p_src)
{
int i = 0;
if (p_src->len == LEN_UUID_16 || p_src->len == LEN_UUID_32)
{
for(i=0; i != 16; ++i) {
p_dest->uu[i] = base_uuid[i];
}
}
switch (p_src->len)
{
case 0:
break;
case LEN_UUID_16:
p_dest->uu[12] = p_src->uu.uuid16 & 0xff;
p_dest->uu[13] = (p_src->uu.uuid16 >> 8) & 0xff;
break;
case LEN_UUID_32:
p_dest->uu[12] = p_src->uu.uuid16 & 0xff;
p_dest->uu[13] = (p_src->uu.uuid16 >> 8) & 0xff;
p_dest->uu[14] = (p_src->uu.uuid32 >> 16) & 0xff;
p_dest->uu[15] = (p_src->uu.uuid32 >> 24) & 0xff;
break;
case LEN_UUID_128:
for(i=0; i != 16; ++i)
p_dest->uu[i] = p_src->uu.uuid128[i];
break;
default:
APPL_TRACE_ERROR("%s: Unknown UUID length %d!", __FUNCTION__, p_src->len);
break;
}
}
#endif /* BTA_GATT_INCLUDED */
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
This file uses the notable symbols shown below. Click anywhere in the file to view more details.