Outline ![]()
Files ![]()
loading...
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
/******************************************************************************
*
* 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 is the main implementation file for the BTA audio gateway.
*
******************************************************************************/
#include <string.h>
#include <stdlib.h>
#include "bta_ag_int.h"
#include "bta/bta_api.h"
#include "bta/bta_sys.h"
#include "bta/bta_ag_api.h"
#include "bta/bta_ag_co.h"
#include "bta/utl.h"
#include "common/bt_defs.h"
#include "common/bt_trace.h"
#include "osi/allocator.h"
#if (BTA_AG_INCLUDED == TRUE)
/*****************************************************************************
** Constants and types
*****************************************************************************/
#ifndef BTA_AG_DEBUG
#define BTA_AG_DEBUG TRUE
#endif
#if BTA_AG_DEBUG == TRUE
static char *bta_ag_evt_str(UINT16 event, tBTA_AG_RES result);
static char *bta_ag_state_str(UINT8 state);
#endif
/* state machine states */
enum
{
BTA_AG_INIT_ST,
BTA_AG_OPENING_ST,
BTA_AG_OPEN_ST,
BTA_AG_CLOSING_ST
};
/* state machine action enumeration list */
enum
{
BTA_AG_REGISTER,
BTA_AG_DEREGISTER,
BTA_AG_START_OPEN,
BTA_AG_RFC_DO_OPEN,
BTA_AG_RFC_DO_CLOSE,
BTA_AG_START_DEREG,
BTA_AG_START_CLOSE,
BTA_AG_RFC_OPEN,
BTA_AG_OPEN_FAIL,
BTA_AG_RFC_ACP_OPEN,
BTA_AG_RFC_CLOSE,
BTA_AG_RFC_FAIL,
BTA_AG_RFC_DATA,
BTA_AG_DISC_INT_RES,
BTA_AG_DISC_FAIL,
BTA_AG_DISC_ACP_RES,
BTA_AG_FREE_DB,
BTA_AG_SCO_CONN_OPEN,
BTA_AG_SCO_CONN_CLOSE,
BTA_AG_SCO_LISTEN,
BTA_AG_SCO_OPEN,
BTA_AG_SCO_CLOSE,
BTA_AG_SCO_SHUTDOWN,
BTA_AG_POST_SCO_OPEN,
BTA_AG_POST_SCO_CLOSE,
BTA_AG_SVC_CONN_OPEN,
BTA_AG_RESULT,
BTA_AG_SETCODEC,
BTA_AG_SEND_RING,
BTA_AG_CI_SCO_DATA,
BTA_AG_CI_RX_DATA,
BTA_AG_RCVD_SLC_READY,
BTA_AG_PKT_STAT_NUMS,
BTA_AG_NUM_ACTIONS
};
#define BTA_AG_IGNORE BTA_AG_NUM_ACTIONS
/* type for action functions */
typedef void (*tBTA_AG_ACTION) (tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data);
/* action functions */
const tBTA_AG_ACTION bta_ag_action[] =
{
bta_ag_register,
bta_ag_deregister,
bta_ag_start_open,
bta_ag_rfc_do_open,
bta_ag_rfc_do_close,
bta_ag_start_dereg,
bta_ag_start_close,
bta_ag_rfc_open,
bta_ag_open_fail,
bta_ag_rfc_acp_open,
bta_ag_rfc_close,
bta_ag_rfc_fail,
bta_ag_rfc_data,
bta_ag_disc_int_res,
bta_ag_disc_fail,
bta_ag_disc_acp_res,
bta_ag_free_db,
bta_ag_sco_conn_open,
bta_ag_sco_conn_close,
bta_ag_sco_listen,
bta_ag_sco_open,
bta_ag_sco_close,
bta_ag_sco_shutdown,
bta_ag_post_sco_open,
bta_ag_post_sco_close,
bta_ag_svc_conn_open,
bta_ag_result,
bta_ag_setcodec,
bta_ag_send_ring,
bta_ag_ci_sco_data,
bta_ag_ci_rx_data,
bta_ag_rcvd_slc_ready,
bta_ag_pkt_stat_nums
};
/* state table information */
#define BTA_AG_ACTIONS 2 /* number of actions */
#define BTA_AG_NEXT_STATE 2 /* position of next state */
#define BTA_AG_NUM_COLS 3 /* number of columns in state tables */
/* state table for init state */
const UINT8 bta_ag_st_init[][BTA_AG_NUM_COLS] =
{
/* Event Action 1 Action 2 Next state */
/* API_REGISTER_EVT */ {BTA_AG_REGISTER, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* API_DEREGISTER_EVT */ {BTA_AG_DEREGISTER, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* API_OPEN_EVT */ {BTA_AG_START_OPEN, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* API_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* API_AUDIO_OPEN_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* API_AUDIO_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* API_RESULT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* API_SETCODEC_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RFC_OPEN_EVT */ {BTA_AG_RFC_ACP_OPEN, BTA_AG_SCO_LISTEN, BTA_AG_OPEN_ST},
/* RFC_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RFC_SRV_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RFC_DATA_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* SCO_OPEN_EVT */ {BTA_AG_SCO_CONN_OPEN, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* SCO_CLOSE_EVT */ {BTA_AG_SCO_CONN_CLOSE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* DISC_ACP_RES_EVT */ {BTA_AG_FREE_DB, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* DISC_INT_RES_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* DISC_OK_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* DISC_FAIL_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* CI_RX_WRITE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RING_TOUT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* SVC_TOUT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* CI_SCO_DATA_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* CI_SLC_READY_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* PKT_STAT_NUMS_GET_EVT */ {BTA_AG_PKT_STAT_NUMS, BTA_AG_IGNORE, BTA_AG_INIT_ST}
};
/* state table for opening state */
const UINT8 bta_ag_st_opening[][BTA_AG_NUM_COLS] =
{
/* Event Action 1 Action 2 Next state */
/* API_REGISTER_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* API_DEREGISTER_EVT */ {BTA_AG_RFC_DO_CLOSE, BTA_AG_START_DEREG, BTA_AG_CLOSING_ST},
/* API_OPEN_EVT */ {BTA_AG_OPEN_FAIL, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* API_CLOSE_EVT */ {BTA_AG_RFC_DO_CLOSE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_AUDIO_OPEN_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* API_AUDIO_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* API_RESULT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* API_SETCODEC_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* RFC_OPEN_EVT */ {BTA_AG_RFC_OPEN, BTA_AG_SCO_LISTEN, BTA_AG_OPEN_ST},
/* RFC_CLOSE_EVT */ {BTA_AG_RFC_FAIL, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RFC_SRV_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* RFC_DATA_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* SCO_OPEN_EVT */ {BTA_AG_SCO_CONN_OPEN, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* SCO_CLOSE_EVT */ {BTA_AG_SCO_CONN_CLOSE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* DISC_ACP_RES_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* DISC_INT_RES_EVT */ {BTA_AG_DISC_INT_RES, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* DISC_OK_EVT */ {BTA_AG_RFC_DO_OPEN, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* DISC_FAIL_EVT */ {BTA_AG_DISC_FAIL, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* CI_RX_WRITE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* RING_TOUT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* SVC_TOUT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* CI_SCO_DATA_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* CI_SLC_READY_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPENING_ST},
/* PKT_STAT_NUMS_GET_EVT */ {BTA_AG_PKT_STAT_NUMS, BTA_AG_IGNORE, BTA_AG_OPENING_ST}
};
/* state table for open state */
const UINT8 bta_ag_st_open[][BTA_AG_NUM_COLS] =
{
/* Event Action 1 Action 2 Next state */
/* API_REGISTER_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* API_DEREGISTER_EVT */ {BTA_AG_START_CLOSE, BTA_AG_START_DEREG, BTA_AG_CLOSING_ST},
/* API_OPEN_EVT */ {BTA_AG_OPEN_FAIL, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* API_CLOSE_EVT */ {BTA_AG_START_CLOSE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_AUDIO_OPEN_EVT */ {BTA_AG_SCO_OPEN, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* API_AUDIO_CLOSE_EVT */ {BTA_AG_SCO_CLOSE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* API_RESULT_EVT */ {BTA_AG_RESULT, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* API_SETCODEC_EVT */ {BTA_AG_SETCODEC, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* RFC_OPEN_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* RFC_CLOSE_EVT */ {BTA_AG_RFC_CLOSE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RFC_SRV_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* RFC_DATA_EVT */ {BTA_AG_RFC_DATA, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* SCO_OPEN_EVT */ {BTA_AG_SCO_CONN_OPEN, BTA_AG_POST_SCO_OPEN, BTA_AG_OPEN_ST},
/* SCO_CLOSE_EVT */ {BTA_AG_SCO_CONN_CLOSE, BTA_AG_POST_SCO_CLOSE, BTA_AG_OPEN_ST},
/* DISC_ACP_RES_EVT */ {BTA_AG_DISC_ACP_RES, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* DISC_INT_RES_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* DISC_OK_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* DISC_FAIL_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* CI_RX_WRITE_EVT */ {BTA_AG_CI_RX_DATA, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* RING_TOUT_EVT */ {BTA_AG_SEND_RING, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* SVC_TOUT_EVT */ {BTA_AG_START_CLOSE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* CI_SCO_DATA_EVT */ {BTA_AG_CI_SCO_DATA, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* CI_SLC_READY_EVT */ {BTA_AG_RCVD_SLC_READY, BTA_AG_IGNORE, BTA_AG_OPEN_ST},
/* PKT_STAT_NUMS_GET_EVT */ {BTA_AG_PKT_STAT_NUMS, BTA_AG_IGNORE, BTA_AG_OPEN_ST}
};
/* state table for closing state */
const UINT8 bta_ag_st_closing[][BTA_AG_NUM_COLS] =
{
/* Event Action 1 Action 2 Next state */
/* API_REGISTER_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_DEREGISTER_EVT */ {BTA_AG_START_DEREG, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_OPEN_EVT */ {BTA_AG_OPEN_FAIL, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_AUDIO_OPEN_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_AUDIO_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_RESULT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* API_SETCODEC_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* RFC_OPEN_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* RFC_CLOSE_EVT */ {BTA_AG_RFC_CLOSE, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* RFC_SRV_CLOSE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* RFC_DATA_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* SCO_OPEN_EVT */ {BTA_AG_SCO_CONN_OPEN, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* SCO_CLOSE_EVT */ {BTA_AG_SCO_CONN_CLOSE, BTA_AG_POST_SCO_CLOSE, BTA_AG_CLOSING_ST},
/* DISC_ACP_RES_EVT */ {BTA_AG_FREE_DB, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* DISC_INT_RES_EVT */ {BTA_AG_FREE_DB, BTA_AG_IGNORE, BTA_AG_INIT_ST},
/* DISC_OK_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* DISC_FAIL_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* CI_RX_WRITE_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* RING_TOUT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* SVC_TOUT_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* CI_SCO_DATA_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* CI_SLC_READY_EVT */ {BTA_AG_IGNORE, BTA_AG_IGNORE, BTA_AG_CLOSING_ST},
/* PKT_STAT_NUMS_GET_EVT */ {BTA_AG_PKT_STAT_NUMS, BTA_AG_IGNORE, BTA_AG_CLOSING_ST}
};
/* type for state table */
typedef const UINT8 (*tBTA_AG_ST_TBL)[BTA_AG_NUM_COLS];
/* state table */
const tBTA_AG_ST_TBL bta_ag_st_tbl[] =
{
bta_ag_st_init,
bta_ag_st_opening,
bta_ag_st_open,
bta_ag_st_closing
};
/*****************************************************************************
** Global data
*****************************************************************************/
const uint16_t bta_ag_version = HFP_VERSION_1_8;
/* AG control block */
#if BTA_DYNAMIC_MEMORY == FALSE
tBTA_AG_CB bta_ag_cb;
#else
tBTA_AG_CB *bta_ag_cb_ptr;
#endif
#if BTA_AG_DEBUG == TRUE
static char *bta_ag_evt_str(UINT16 event, tBTA_AG_RES result)
{
switch (event)
{
case BTA_AG_API_REGISTER_EVT:
return "Register Request";
case BTA_AG_API_DEREGISTER_EVT:
return "Deregister Request";
case BTA_AG_API_OPEN_EVT:
return "Open SLC Request";
case BTA_AG_API_CLOSE_EVT:
return "Close SLC Request";
case BTA_AG_API_AUDIO_OPEN_EVT:
return "Open Audio Request";
case BTA_AG_API_AUDIO_CLOSE_EVT:
return "Close Audio Request";
case BTA_AG_API_RESULT_EVT:
switch (result) {
case BTA_AG_SPK_RES: return ("AT Result BTA_AG_SPK_RES");
case BTA_AG_MIC_RES: return ("AT Result BTA_AG_MIC_RES");
case BTA_AG_INBAND_RING_RES: return ("AT Result BTA_AG_INBAND_RING_RES");
case BTA_AG_CIND_RES: return ("AT Result BTA_AG_CIND_RES");
case BTA_AG_BINP_RES: return ("AT Result BTA_AG_BINP_RES");
case BTA_AG_IND_RES: return ("AT Result BTA_AG_IND_RES");
case BTA_AG_BVRA_RES: return ("AT Result BTA_AG_BVRA_RES");
case BTA_AG_CNUM_RES: return ("AT Result BTA_AG_CNUM_RES");
case BTA_AG_BTRH_RES: return ("AT Result BTA_AG_BTRH_RES");
case BTA_AG_CLCC_RES: return ("AT Result BTA_AG_CLCC_RES");
case BTA_AG_COPS_RES: return ("AT Result BTA_AG_COPS_RES");
case BTA_AG_IN_CALL_RES: return ("AT Result BTA_AG_IN_CALL_RES");
case BTA_AG_IN_CALL_CONN_RES: return ("AT Result BTA_AG_IN_CALL_CONN_RES");
case BTA_AG_CALL_WAIT_RES: return ("AT Result BTA_AG_CALL_WAIT_RES");
case BTA_AG_OUT_CALL_ORIG_RES: return ("AT Result BTA_AG_OUT_CALL_ORIG_RES");
case BTA_AG_OUT_CALL_ALERT_RES: return ("AT Result BTA_AG_OUT_CALL_ALERT_RES");
case BTA_AG_OUT_CALL_CONN_RES: return ("AT Result BTA_AG_OUT_CALL_CONN_RES");
case BTA_AG_CALL_CANCEL_RES: return ("AT Result BTA_AG_CALL_CANCEL_RES");
case BTA_AG_END_CALL_RES: return ("AT Result BTA_AG_END_CALL_RES");
case BTA_AG_UNAT_RES: return ("AT Result BTA_AG_UNAT_RES");
default: return ("Unknown AG Result");
}
case BTA_AG_API_SETCODEC_EVT:
return "Set Codec Request";
case BTA_AG_RFC_OPEN_EVT:
return "RFC Opened";
case BTA_AG_RFC_CLOSE_EVT:
return "RFC Closed";
case BTA_AG_RFC_SRV_CLOSE_EVT:
return "RFC SRV Closed";
case BTA_AG_RFC_DATA_EVT:
return "RFC Data";
case BTA_AG_SCO_OPEN_EVT:
return "Audio Opened";
case BTA_AG_SCO_CLOSE_EVT:
return "Audio Closed";
case BTA_AG_DISC_ACP_RES_EVT:
return "Discovery ACP Result";
case BTA_AG_DISC_INT_RES_EVT:
return "Discovery INT Result";
case BTA_AG_DISC_OK_EVT:
return "Discovery OK";
case BTA_AG_DISC_FAIL_EVT:
return "Discovery Failed";
case BTA_AG_CI_RX_WRITE_EVT:
return "CI RX Write";
case BTA_AG_RING_TOUT_EVT:
return "Ring Timeout";
case BTA_AG_SVC_TOUT_EVT:
return "Service Timeout";
case BTA_AG_API_ENABLE_EVT:
return "Enable AG";
case BTA_AG_API_DISABLE_EVT:
return "Disable AG";
case BTA_AG_CI_SCO_DATA_EVT:
return "SCO data Callin";
case BTA_AG_CI_SLC_READY_EVT:
return "SLC Ready Callin";
case BTA_AG_PKT_STAT_NUMS_GET_EVT:
return "Get Packet Nums";
default:
return "Unknown AG Event";
}
}
static char *bta_ag_state_str(UINT8 state)
{
switch (state) {
case BTA_AG_INIT_ST:
return "Initial";
case BTA_AG_OPENING_ST:
return "Opening";
case BTA_AG_OPEN_ST:
return "Open";
case BTA_AG_CLOSING_ST:
return "Closing";
default:
return "Unknown AG State";
}
}
#endif
/*******************************************************************************
**
** Function bta_ag_timer_cback
**
** Description AG timer callback.
**
**
** Returns void
**
*******************************************************************************/
static void bta_ag_timer_cback(void *p)
{
BT_HDR *p_buf;
TIMER_LIST_ENT *p_tle = (TIMER_LIST_ENT *) p;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = p_tle->event;
p_buf->layer_specific = bta_ag_scb_to_idx((tBTA_AG_SCB *) p_tle->param);
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_ag_scb_alloc
**
** Description Allocate an AG service control block.
**
**
** Returns pointer to the scb, or NULL if none could be allocated.
**
*******************************************************************************/
static tBTA_AG_SCB *bta_ag_scb_alloc(void)
{
tBTA_AG_SCB *p_scb = &bta_ag_cb.scb[0];
int i;
for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++) {
if (!p_scb->in_use) {
/* initialize variables */
p_scb->in_use = TRUE;
p_scb->sco_idx = BTM_INVALID_SCO_INDEX;
#if (BTM_WBS_INCLUDED == TRUE)
p_scb->codec_updated = FALSE;
#endif
/* set up timers */
p_scb->act_timer.param = (UINT32) p_scb;
p_scb->act_timer.p_cback = bta_ag_timer_cback;
#if (BTM_WBS_INCLUDED == TRUE)
/* set eSCO mSBC setting to T2 as the preferred */
p_scb->codec_msbc_settings = BTA_AG_SCO_MSBC_SETTINGS_T2;
#endif
APPL_TRACE_DEBUG("bta_ag_scb_alloc %d", bta_ag_scb_to_idx(p_scb));
break;
}
}
if (i == BTA_AG_NUM_SCB) {
p_scb = NULL; /* out of scbs */
APPL_TRACE_WARNING("Out of ag scbs");
}
return p_scb;
}
/*******************************************************************************
**
** Function bta_ag_scb_dealloc
**
** Description Deallocate a service control block.
**
**
** Returns void
**
*******************************************************************************/
void bta_ag_scb_dealloc(tBTA_AG_SCB *p_scb)
{
UINT8 idx;
BOOLEAN allocated = FALSE;
APPL_TRACE_DEBUG("bta_ag_scb_dealloc %d", bta_ag_scb_to_idx(p_scb));
/* stop timers */
bta_sys_free_timer(&p_scb->act_timer);
#if (BTM_WBS_INCLUDED == TRUE)
bta_sys_free_timer(&p_scb->cn_timer);
#endif
bta_sys_free_timer(&p_scb->colli_timer);
/* initialize control block */
memset(p_scb, 0, sizeof(tBTA_AG_SCB));
p_scb->sco_idx = BTM_INVALID_SCO_INDEX;
/* If all scbs are deallocated, callback with disable event */
if (!bta_sys_is_register (BTA_ID_AG)) {
for (idx = 0; idx < BTA_AG_NUM_SCB; idx++) {
if (bta_ag_cb.scb[idx].in_use) {
allocated = TRUE;
break;
}
}
if (!allocated) {
(*bta_ag_cb.p_cback)(BTA_AG_DISABLE_EVT, NULL);
}
}
}
/*******************************************************************************
**
** Function bta_ag_scb_to_idx
**
** Description Given a pointer to an scb, return its index.
**
**
** Returns Index of scb.
**
*******************************************************************************/
UINT16 bta_ag_scb_to_idx(tBTA_AG_SCB *p_scb)
{
/* use array arithmetic to determine index */
return ((UINT16) (p_scb - bta_ag_cb.scb)) + 1;
}
/*******************************************************************************
**
** Function bta_ag_scb_by_idx
**
** Description Given an scb index return pointer to scb.
**
**
** Returns Pointer to scb or NULL if not allocated.
**
*******************************************************************************/
tBTA_AG_SCB *bta_ag_scb_by_idx(UINT16 idx)
{
tBTA_AG_SCB *p_scb;
/* verify index */
if (idx > 0 && idx <= BTA_AG_NUM_SCB) {
p_scb = &bta_ag_cb.scb[idx - 1];
if (!p_scb->in_use) {
p_scb = NULL;
APPL_TRACE_WARNING("ag scb idx %d not allocated", idx);
}
} else {
p_scb = NULL;
APPL_TRACE_DEBUG("ag scb idx %d out of range", idx);
}
return p_scb;
}
/*******************************************************************************
**
** Function bta_ag_service_to_idx
**
** Description Given a BTA service mask convert to profile index.
**
**
** Returns Profile ndex of scb.
**
*******************************************************************************/
UINT8 bta_ag_service_to_idx(tBTA_SERVICE_MASK services)
{
if (services & BTA_HFP_SERVICE_MASK) {
return BTA_AG_HFP;
} else {
return BTA_AG_HSP;
}
}
/*******************************************************************************
**
** Function bta_ag_idx_by_bdaddr
**
** Description Find SCB associated with peer BD address.
**
**
** Returns Index of SCB or zero if none found.
**
*******************************************************************************/
UINT16 bta_ag_idx_by_bdaddr(BD_ADDR peer_addr)
{
tBTA_AG_SCB *p_scb = &bta_ag_cb.scb[0];
UINT16 i;
if (peer_addr != NULL) {
for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++) {
if (p_scb->in_use && !bdcmp(peer_addr, p_scb->peer_addr)) {
return (i + 1);
}
}
}
/* no scb found */
APPL_TRACE_WARNING("No ag scb for peer addr");
return 0;
}
/*******************************************************************************
**
** Function bta_ag_other_scb_open
**
** Description Check whether any other scb is in open state.
**
**
** Returns TRUE if another scb is in open state, FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_ag_other_scb_open(tBTA_AG_SCB *p_curr_scb)
{
tBTA_AG_SCB *p_scb = &bta_ag_cb.scb[0];
for (int i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++) {
if (p_scb->in_use && p_scb != p_curr_scb && p_scb->state == BTA_AG_OPEN_ST) {
return TRUE;
}
}
/* no other scb found */
APPL_TRACE_DEBUG("No other ag scb open");
return FALSE;
}
/*******************************************************************************
**
** Function bta_ag_scb_open
**
** Description Check whether given scb is in open state.
**
**
** Returns TRUE if scb is in open state, FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_ag_scb_open(tBTA_AG_SCB *p_curr_scb)
{
if (p_curr_scb && p_curr_scb->in_use && p_curr_scb->state == BTA_AG_OPEN_ST) {
return TRUE;
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_ag_get_other_idle_scb
**
** Description Return other scb if it is in INIT st.
**
**
** Returns Pointer to other scb if INIT st, NULL otherwise.
**
*******************************************************************************/
tBTA_AG_SCB *bta_ag_get_other_idle_scb (tBTA_AG_SCB *p_curr_scb)
{
tBTA_AG_SCB *p_scb = &bta_ag_cb.scb[0];
UINT8 xx;
for (xx = 0; xx < BTA_AG_NUM_SCB; xx++, p_scb++) {
if (p_scb->in_use && (p_scb != p_curr_scb) && (p_scb->state == BTA_AG_INIT_ST)) {
return p_scb;
}
}
/* no other scb found */
APPL_TRACE_DEBUG("bta_ag_get_other_idle_scb: No idle AG scb");
return NULL;
}
/*******************************************************************************
**
** Function bta_ag_colli_timer_cback
**
** Description AG connection collision timer callback
**
**
** Returns void
**
*******************************************************************************/
static void bta_ag_colli_timer_cback (TIMER_LIST_ENT *p_tle)
{
tBTA_AG_SCB *p_scb;
APPL_TRACE_DEBUG ("bta_ag_colli_timer_cback");
if (p_tle) {
p_scb = (tBTA_AG_SCB *)p_tle->param;
if (p_scb) {
p_scb->colli_tmr_on = FALSE;
/* If the peer haven't opened AG connection */
/* we will restart opening process. */
bta_ag_resume_open (p_scb);
}
}
}
/*******************************************************************************
**
** Function bta_ag_collision_cback
**
** Description Get notified about collision.
**
**
** Returns void
**
*******************************************************************************/
void bta_ag_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
{
UINT16 handle;
tBTA_AG_SCB *p_scb;
UNUSED(status);
UNUSED(app_id);
/* Check if we have opening scb for the peer device. */
handle = bta_ag_idx_by_bdaddr (peer_addr);
p_scb = bta_ag_scb_by_idx (handle);
if (p_scb && (p_scb->state == BTA_AG_OPENING_ST)) {
if (id == BTA_ID_SYS) {
/* ACL collision */
APPL_TRACE_WARNING ("AG found collision (ACL) ...");
} else if (id == BTA_ID_AG) {
/* RFCOMM collision */
APPL_TRACE_WARNING ("AG found collision (RFCOMM) ...");
} else {
APPL_TRACE_WARNING ("AG found collision (\?\?\?) ...");
}
p_scb->state = BTA_AG_INIT_ST;
/* Cancel SDP if it had been started. */
if(p_scb->p_disc_db) {
(void)SDP_CancelServiceSearch (p_scb->p_disc_db);
bta_ag_free_db(p_scb, NULL);
}
/* reopen registered servers */
/* Collision may be detected before or after we close servers. */
if (bta_ag_is_server_closed (p_scb)) {
bta_ag_start_servers(p_scb, p_scb->reg_services);
}
/* Start timer to han */
p_scb->colli_timer.p_cback = (TIMER_CBACK*)&bta_ag_colli_timer_cback;
p_scb->colli_timer.param = (INT32)p_scb;
bta_sys_start_timer(&p_scb->colli_timer, 0, BTA_AG_COLLISION_TIMER);
p_scb->colli_tmr_on = TRUE;
}
}
/*******************************************************************************
**
** Function bta_ag_resume_open
**
** Description Resume opening process.
**
**
** Returns void
**
*******************************************************************************/
void bta_ag_resume_open (tBTA_AG_SCB *p_scb)
{
if (p_scb) {
APPL_TRACE_DEBUG ("bta_ag_resume_open, Handle(%d)", bta_ag_scb_to_idx(p_scb));
/* resume opening process. */
if (p_scb->state == BTA_AG_INIT_ST) {
p_scb->state = BTA_AG_OPENING_ST;
bta_ag_start_open (p_scb, NULL);
}
} else {
APPL_TRACE_ERROR ("bta_ag_resume_open, Null p_scb");
}
}
/*******************************************************************************
**
** Function bta_ag_api_enable
**
** Description Handle an API enable event.
**
**
** Returns void
**
*******************************************************************************/
static void bta_ag_api_enable(tBTA_AG_DATA *p_data)
{
/* initialize control block */
memset(&bta_ag_cb, 0, sizeof(tBTA_AG_CB));
/* store callback function */
bta_ag_cb.p_cback = p_data->api_enable.p_cback;
bta_ag_cb.parse_mode = p_data->api_enable.parse_mode;
/* check if mSBC support enabled */
if (bta_ag_version >= HFP_VERSION_1_6) {
bta_ag_cb.msbc_enabled = TRUE;
bta_ag_cb.scb->negotiated_codec = BTM_SCO_CODEC_MSBC;
} else{
bta_ag_cb.msbc_enabled = FALSE;
bta_ag_cb.scb->negotiated_codec = BTM_SCO_CODEC_CVSD;
}
/* set deault setting for eSCO/SCO */
BTM_WriteVoiceSettings(AG_VOICE_SETTINGS);
bta_sys_collision_register (BTA_ID_AG, bta_ag_collision_cback);
/* call callback with enable event */
(*bta_ag_cb.p_cback)(BTA_AG_ENABLE_EVT, NULL);
}
/*******************************************************************************
**
** Function bta_ag_api_disable
**
** Description Handle an API disable event.
**
**
** Returns void
**
*******************************************************************************/
static void bta_ag_api_disable(tBTA_AG_DATA *p_data)
{
/* deregister all scbs in use */
tBTA_AG_SCB *p_scb = &bta_ag_cb.scb[0];
BOOLEAN do_dereg = FALSE;
int i;
if (!bta_sys_is_register (BTA_ID_AG)) {
APPL_TRACE_ERROR("BTA AG is already disabled, ignoring ...");
return;
}
/* De-register with BTA system manager */
bta_sys_deregister(BTA_ID_AG);
for (i = 0; i < BTA_AG_NUM_SCB; i++, p_scb++) {
if (p_scb->in_use) {
bta_ag_sm_execute(p_scb, BTA_AG_API_DEREGISTER_EVT, p_data);
do_dereg = TRUE;
}
}
if (!do_dereg) {
/* Done, send callback evt to app */
(*bta_ag_cb.p_cback)(BTA_AG_DISABLE_EVT, NULL);
}
bta_sys_collision_register (BTA_ID_AG, NULL);
}
/*******************************************************************************
**
** Function bta_ag_api_register
**
** Description Handle an API event registers a new service.
**
**
** Returns void
**
*******************************************************************************/
static void bta_ag_api_register(tBTA_AG_DATA *p_data)
{
tBTA_AG_SCB *p_scb;
tBTA_AG_REGISTER reg;
/* allocate an scb */
if ((p_scb = bta_ag_scb_alloc()) != NULL) {
APPL_TRACE_DEBUG("bta_ag_api_register: p_scb 0x%08x ", (unsigned int)p_scb);
bta_ag_sm_execute(p_scb, p_data->hdr.event, p_data);
} else {
reg.hdr.status = BTA_AG_FAIL_RESOURCES;
(*bta_ag_cb.p_cback)(BTA_AG_REGISTER_EVT, (tBTA_AG *) ®);
}
}
/*******************************************************************************
**
** Function bta_ag_api_result
**
** Description Handle an API result event.
**
**
** Returns void
**
*******************************************************************************/
static void bta_ag_api_result(tBTA_AG_DATA *p_data)
{
tBTA_AG_SCB *p_scb;
int i;
if (p_data->hdr.layer_specific != BTA_AG_HANDLE_ALL) {
if ((p_scb = bta_ag_scb_by_idx(p_data->hdr.layer_specific)) != NULL) {
APPL_TRACE_DEBUG("bta_ag_api_result: p_scb 0x%08x ", (unsigned int)p_scb);
bta_ag_sm_execute(p_scb, BTA_AG_API_RESULT_EVT, p_data);
}
} else {
for (i = 0, p_scb = &bta_ag_cb.scb[0]; i < BTA_AG_NUM_SCB; i++, p_scb++) {
if (p_scb->in_use && p_scb->svc_conn) {
APPL_TRACE_DEBUG("bta_ag_api_result p_scb 0x%08x ", (unsigned int)p_scb);
bta_ag_sm_execute(p_scb, BTA_AG_API_RESULT_EVT, p_data);
}
}
}
}
/*******************************************************************************
**
** Function bta_ag_sm_execute
**
** Description State machine event handling function for AG
**
**
** Returns void
**
*******************************************************************************/
void bta_ag_sm_execute(tBTA_AG_SCB *p_scb, UINT16 event, tBTA_AG_DATA *p_data)
{
tBTA_AG_ST_TBL state_table;
UINT8 action;
#if BTA_AG_DEBUG == TRUE
UINT16 in_event = event;
UINT8 in_state = p_scb->state;
/* Ignore displaying of AT results when not connected (Ignored in state machine) */
if (in_event != BTA_AG_API_RESULT_EVT || p_scb->state == BTA_AG_OPEN_ST) {
APPL_TRACE_EVENT("AG evt (hdl 0x%04x): State %d (%s), Event 0x%04x (%s)",
bta_ag_scb_to_idx(p_scb),
p_scb->state, bta_ag_state_str(p_scb->state),
event, bta_ag_evt_str(event, p_data->api_result.result));
}
#else
APPL_TRACE_EVENT("AG evt (hdl 0x%04x): State %d, Event 0x%04x",
bta_ag_scb_to_idx(p_scb), p_scb->state, event);
#endif
event &= 0x00FF;
if (event >= (BTA_AG_MAX_EVT & 0x00FF)) {
APPL_TRACE_ERROR("AG evt out of range, ignoring...");
return;
}
/* look up the state table for the current state */
state_table = bta_ag_st_tbl[p_scb->state];
/* set next state */
p_scb->state = state_table[event][BTA_AG_NEXT_STATE];
/* execute action functions */
for (int i = 0; i < BTA_AG_ACTIONS; i++) {
if ((action = state_table[event][i]) != BTA_AG_IGNORE) {
(*bta_ag_action[action])(p_scb, p_data);
} else {
break;
}
}
#if BTA_AG_DEBUG == TRUE
if (p_scb->state != in_state) {
APPL_TRACE_EVENT("BTA AG State Change: [%s] -> [%s] after Event [%s]",
bta_ag_state_str(in_state),
bta_ag_state_str(p_scb->state),
bta_ag_evt_str(in_event, p_data->api_result.result));
}
#endif
}
/*******************************************************************************
**
** Function bta_ag_hdl_event
**
** Description Data gateway main event handling function.
**
**
** Returns BOOLEAN
**
*******************************************************************************/
BOOLEAN bta_ag_hdl_event(BT_HDR *p_msg)
{
tBTA_AG_SCB *p_scb;
APPL_TRACE_DEBUG("bta_ag_hdl_event: Event 0x%04x ", p_msg->event);
switch (p_msg->event) {
/* handle enable event */
case BTA_AG_API_ENABLE_EVT:
bta_ag_api_enable((tBTA_AG_DATA *) p_msg);
break;
/* handle disable event */
case BTA_AG_API_DISABLE_EVT:
bta_ag_api_disable((tBTA_AG_DATA *) p_msg);
break;
/* handle register event */
case BTA_AG_API_REGISTER_EVT:
bta_ag_api_register((tBTA_AG_DATA *) p_msg);
break;
/* handle result event */
case BTA_AG_API_RESULT_EVT:
bta_ag_api_result((tBTA_AG_DATA *) p_msg);
break;
/* all others reference scb by handle */
default:
if ((p_scb = bta_ag_scb_by_idx(p_msg->layer_specific)) != NULL) {
APPL_TRACE_DEBUG("bta_ag_hdl_event: p_scb 0x%08x ", (unsigned int)p_scb);
bta_ag_sm_execute(p_scb, p_msg->event, (tBTA_AG_DATA *) p_msg);
}
break;
}
return TRUE;
}
#endif /* #if (BTA_AG_INCLUDED == TRUE) */
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.