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
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
|
Android HAL protocol for Bluetooth
==================================
The Android HAL daemon for Bluetooth functionality implements the Unix socket
server protocol around /run/bluetooth/daemon (tentative location) or Linux
abstract sockets (tentative name).
The daemon is single threaded and uses a mainloop for scheduling and general
operation.
The protocol is SOCK_SEQPACKET based and follows a strict PDU specification
with a generic header and initial registration exchange. The communication
is driven from the HAL with command/response exchanges. The daemon will use
notification to signal events. The protocol is single PDU exchanged based,
meaning every command requires a response. Notification does not require
any confirmation. Not handling this PDU exchange leads to a disconnection of
the socket.
Command/response and notification use separate sockets. First connected socket
is used for command/response, second for notification. All services are
multi-plexed over same pair of sockets. Separation is done to ease
implementation of simple HAL library with dedicated thread for handling
notification.
This strict protocol requirement is done to match C based callbacks and
callout functions that are running in a thread inside the HAL and might
block.
.--Android--. .--Android--.
| daemon | | HAL |
| | Command | |
| | <-------------------------- | |
| | | |
| | --------------------------> | |
| | Response | |
| | | |
| | | |
| | Notification | |
| | --------------------------> | |
| | | |
'-----------' '-----------'
Every packet will follow the basic header to support simple multi-plexing
over the same socket. It will also support a basic control channel with service
id 0.
0 8 16 24 31
+--------------+--------------+--------------+--------------+
| Service ID | Opcode | Data Length |
+--------------+--------------+-----------------------------+
| |
The unique service ID is assigned by this specification for each HAL.
As general rule of thumb, the opcode for command matches the opcode for a
response. Or the opcode 0x00 for an error is returned.
Notification opcodes start from 0x80.
All command/response opcodes have the least significant bit not set. And all
notifications have the least significant bit set.
The HAL modules only have the job to map the callback and event functions
to the protocol. They do not need to do anything else. Below is an example
of a sample transaction for the Bluetooth Core HAL and enabling of an
adapter.
HAL Daemon
----------------------------------------------------
call enable() --> command 0x01
return enable() <-- response 0x01
call adapter_state_changed() <-- notification 0x81
return adapter_state_changed()
When the Android hardware framework calls into the Bluetooth Core HAL
and executes the enable() callback, the HAL module sends the enable
command with opcode 0x01 to the daemon. As soon as the daemon responds,
the callback will return with the appropriate result.
After the daemon switched on the adapter, it will send a notification
with opcode 0x81 to the HAL module.
The Bluetooth Core HAL and Bluetooth Socket HAL are guaranteed to be
available from the daemon. All other HAL modules are optional.
When the Bluetooth Core HAL init() function is called, it should open
the socket and register both "bluetooth" and "socket" service modules. It is
required to register "socket" service at the same time since the HAL module
does not have its own init() function.
When new profiles are initiated, the get_profile_interface() callback
will load the profile and during init() of the profile, it should register the
specific service.
Bluetooth main thread Daemon
-------------------------------------------------------
init() --> open command socket
--> open notification socket
--> register module "bluetooth"
--> register module "socket"
get_profile_interface() --> return profile struct
--> continue on Handsfree thread
Handsfree thread Daemon
--------------------------------------------------------
init() --> register module handsfree
Core Service (ID 0)
===================
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 Failed
Opcode 0x01 - Register module command/response
Command parameters: Service id (1 octet)
Response parameters: <none>
In case a command is sent for an undeclared service ID, it will
be rejected. Also there will be no notifications for undeclared
service ID.
In case of an error, the error response will be returned.
Opcode 0x02 - Unregister module command/response
Command parameters: Service id (1 octet)
Response parameters: <none>
In case of an error, the error response will be returned.
Bluetooth Core HAL (ID 1)
=========================
Android HAL name: "bluetooth" (BT_HARDWARE_MODULE_ID)
Commands and responses:
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Opcode 0x01 - Enable command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x02 - Disable command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x03 - Get Adapter Properties command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x04 - Get Adapter Property command/response
Command parameters: Property type (1 octet)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x05 - Set Adapter Property command/response
Command parameters: Property type (1 octet)
Property length (2 octets)
Property value (variable)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x06 - Get Remote Device Properties command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x07 - Get Remote Device Property command/response
Command parameters: Remote address (6 octets)
Property type (1 octet)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x08 - Set Remote Device Property command/response
Command parameters: Remote address (6 octets)
Property type (1 octet)
Property length (2 octets)
Property value (variable)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x09 - Get Remote Service Record command/response
Command parameters: Remote address (6 octets)
UUID (16 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0a - Get Remote Services command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0b - Start Discovery command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0c - Cancel Discovery command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0d - Create Bond command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0e - Remove Bond command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0f - Cancel Bond command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x10 - PIN Reply command/response
Command parameters: Remote address (6 octets)
Accept (1 octet)
PIN length (1 octet)
PIN code (16 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x11 - SSP Reply command/response
Command parameters: Remote address (6 octets)
SSP variant (1 octet)
Accept (1 octet)
Passkey (4 octets)
Response parameters: <none>
Valid SSP variant values: 0x00 = Passkey Confirmation
0x01 = Passkey Entry
0x02 = Consent (for Just Works)
0x03 = Passkey Notification
In case of an error, the error response will be returned.
Opcode 0x12 - DUT Mode Configure command/response
Command parameters: Enable (1 octet)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x13 - DUT Mode Send command/response
Command parameters: Opcode (2 octets)
Length (1 octet)
Data (variable)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x14 - LE Test Mode command/response
Command parameters: Opcode (2 octets)
Length (1 octet)
Data (variable)
Response parameters: <none>
In case of an error, the error response will be returned.
Notifications:
Opcode 0x81 - Adapter State Changed notification
Notifications parameters: State (1 octect)
Valid state values: 0x00 = Off
0x01 = On
Opcode 0x82 - Adapter Properties Changed notification
Notification parameters: Status (1 octect)
Num properties (1 octet)
Type[i] (1 octect)
Length[i] (2 octets)
Value[i] (variable)
Opcode 0x83 - Remote Device Properties notification
Notification parameters: Status (1 octect)
Remote address (6 octets)
Num properties (1 octet)
Type[i] (1 octect)
Length[i] (2 octets)
Value[i] (variable)
Opcode 0x84 - Device Found notification
Notification parameters: Num properties (1 octet)
Type[i] (1 octect)
Length[i] (2 octets)
Value[i] (variable)
Opcode 0x85 - Discovery State Changed notification
Notifications parameters: State (1 octect)
Opcode 0x86 - PIN Request notification
Notification parameters: Remote address (6 octets)
Remote name (249 octets)
Class of device (4 octets)
Opcode 0x87 - SSP Request notification
Notification parameters: Remote address (6 octets)
Remote name (249 octets)
Class of device (4 octets)
Pairing variant (1 octet)
Passkey (4 octets)
Opcode 0x88 - Bond State Changed notification
Notification parameters: Status (1 octect)
Remote address (6 octets)
Bond state (1 octet)
Valid bond state values: 0x00 = None
0x01 = Bonding
0x02 = Bonded
Opcode 0x89 - ACL State Changed notification
Notification parameters: Status (1 octect)
Remote address (6 octets)
ACL state (1 octet)
Opcode 0x8a - DUT Mode Receive notification
Notification parameters: Opcode (2 octects)
Length (1 octet)
Data (variable)
Opcode 0x8b - LE Test Mode notification
Notification parameters: Status (1 octect)
Num packets (2 octets)
Bluetooth Socket HAL (ID 2)
===========================
Android HAL name:: "socket" (BT_PROFILE_SOCKETS_ID)
Commands and responses:
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 = Fail
0x02 = Not ready
0x03 = No memory
0x04 = Busy
0x05 = Done (already completed)
0x06 = Unsupported
0x07 = Parameter invalid
0x08 = Unhandled
0x09 = Authentication failure
0x0a = Remote device down
Opcode 0x01 - Listen command/response
Command parameters: Socket type (1 octet)
Service name (256 octets)
Service UUID (16 octets)
Channel (2 octets)
Socket flags (1 octet)
Response parameters: File descriptor (inline)
Valid socket types: 0x01 = RFCOMM
0x02 = SCO
0x03 = L2CAP
Valid socket flags: 0x01 = Encrypt
0x02 = Auth
In case of an error, the error response will be returned.
Opcode 0x02 - Connect command/response
Command parameters: Remote address (6 octets)
Socket type (1 octet)
Service UUID (16 octets)
Channel (2 octets)
Socket flags (1 octet)
Response parameters: File descriptor (inline)
Valid socket types: 0x01 = RFCOMM
0x02 = SCO
0x03 = L2CAP
Valid socket flags: 0x01 = Encrypt
0x02 = Auth
In case of an error, the error response will be returned.
Bluetooth HID Host HAL (ID 3)
============================
Android HAL name: "hidhost" (BT_PROFILE_HIDHOST_ID)
Commands and responses:
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 = Fail
0x02 = Not ready
0x03 = No memory
0x04 = Busy
0x05 = Done (already completed)
0x06 = Unsupported
0x07 = Parameter invalid
0x08 = Unhandled
0x09 = Authentication failure
0x0a = Remote device down
Opcode 0x01 - Connect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x02 - Disconnect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x03 - Virtual Unplug command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x04 - Set Info command/response
Command parameters: Remote address (6 octets)
Attribute mask (2 octets)
Subclass (1 octet)
Application ID (1 octet)
Vendor ID (2 octets)
Product ID (2 octets)
Version (2 octets)
Country code (1 octet)
Descriptor length (2 octet)
Descriptor value (884 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x05 - Get Protocol command/response
Command parameters: Remote address (6 octets)
Protocol mode (1 octet)
Response parameters: <none>
Valid protocol modes: 0x00 = Report
0x01 = Boot
0xff = Unsupported
In case of an error, the error response will be returned.
Opcode 0x06 - Set Protocol command/response
Command parameters: Remote address (6 octets)
Protocol mode (1 octet)
Response parameters: <none>
Valid protocol modes: 0x00 = Report
0x01 = Boot
0xff = Unsupported
In case of an error, the error response will be returned.
Opcode 0x07 - Get Report command/response
Command parameters: Remote address (6 octets)
Report type (1 octet)
Report ID (1 octet)
Buffer size (2 octet)
Response parameters: <none>
Valid report types: 0x01 = Input
0x02 = Output
0x03 = Feature
In case of an error, the error response will be returned.
Opcode 0x08 - Set Report command/response
Command parameters: Remote address (6 octets)
Report type (1 octet)
Report length (2 octets)
Report data (Report length)
Response parameters: <none>
Valid report types: 0x01 = Input
0x02 = Output
0x03 = Feature
In case of an error, the error response will be returned.
Opcode 0x09 - Send Data command/response
Command parameters: Remote address (6 octets)
Data length (2 octets)
Data (Data length)
Response parameters: <none>
In case of an error, the error response will be returned.
Notifications:
Opcode 0x81 - Connection State notification
Notification parameters: Remote address (6 octets)
Connection State (1 octets)
Valid connection states: 0x00 = Connected
0x01 = Connecting
0x02 = Disconnected
0x03 = Disconnecting
0x04 = Failed - Mouse from host
0x05 = Failed - Keyboard from host
0x06 = Failed - Too many devices
0x07 = Failed - No HID driver
0x08 = Failed - generic
0x09 = Unknown
Opcode 0x82 - HID Info notification
Notification parameters: Remote address (6 octets)
Attribute mask (2 octets)
Subclass (1 octet)
Application ID (1 octet)
Vendor ID (2 octets)
Product ID (2 octets)
Version (2 octets)
Country code (1 octet)
Descriptor length (2 octet)
Descriptor value (884 octets)
Opcode 0x83 - Protocol Mode notification
Notification parameters: Remote address (6 octets)
Status (1 octet)
Protocol mode (1 octet)
Valid protocol modes: 0x00 = Report
0x01 = Boot
0xff = Unsupported
Opcode 0x84 - Get Report notification
Notification parameters: Remote address (6 octets)
Status (1 octet)
Report length (2 octets)
Report data (variable)
Opcode 0x85 - Virtual Unplug notification
Notification parameters: Remote address (6 octets)
Status (1 octet)
Valid status values: 0x00 = Ok
0x01 = Handshake - Device not ready
0x02 = Handshake - Invalid report ID
0x03 = Handshake - Transaction not SPT
0x04 = Handshake - Invalid parameter
0x05 = Handshake - Generic error
0x06 = General error
0x07 = SDP error
0x08 = Set protocol error
0x09 = Device database full
0x0a = Device type not supported
0x0b = No resources
0x0c = Authentication failed
0x0d = HDL
Bluetooth PAN HAL (ID 4)
========================
Android HAL name: "pan" (BT_PROFILE_PAN_ID)
Commands and responses:
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 = Fail
0x02 = Not ready
0x03 = No memory
0x04 = Busy
0x05 = Done (already completed)
0x06 = Unsupported
0x07 = Parameter invalid
0x08 = Unhandled
0x09 = Authentication failure
0x0a = Remote device down
Opcode 0x01 - Enable command/response
Command parameters: Local role (1 octet)
Response parameters: <none>
Valid role values: 0x00 = None
0x01 = NAP
0x02 = PANU
In case of an error, the error response will be returned.
Opcode 0x02 - Get Local Role command/response
Command parameters: <none>
Response parameters: Local role (1 octet)
Valid role values: 0x00 = None
0x01 = NAP
0x02 = PANU
In case of an error, the error response will be returned.
Opcode 0x03 - Connect command/response
Command parameters: Remote address (6 octets)
Local role (1 octet)
Remote role (1 octet)
Response parameters: <none>
Valid role values: 0x01 = NAP
0x02 = PANU
In case of an error, the error response will be returned.
Opcode 0x04 - Disconnect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Notifications:
Opcode 0x81 - Control State notification
Notification parameters: Control state (1 octect)
Status (1 octet)
Local role (1 octet)
Interface name (17 octet)
Valid control states: 0x00 = Enabled
0x01 = Disabled
Valid role values: 0x00 = None
0x01 = NAP
0x02 = PANU
Opcode 0x82 - Connection State notification
Notification parameters: Connection state (1 octect)
Status (1 octet)
Remote address (6 octets)
Local role (1 octet)
Remote role (1 octet)
Valid connection states: 0x00 = Connected
0x01 = Connecting
0x02 = Disconnected
0x03 = Disconnecting
Valid role values: 0x01 = NAP
0x02 = PANU
Bluetooth Handsfree HAL (ID 5)
==============================
Android HAL name: "handsfree" (BT_PROFILE_HANDSFREE_ID)
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 = Fail
0x02 = Not ready
0x03 = No memory
0x04 = Busy
0x05 = Done (already completed)
0x06 = Unsupported
0x07 = Parameter invalid
0x08 = Unhandled
0x09 = Authentication failure
0x0a = Remote device down
Opcode 0x01 - Connect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x02 - Disconnect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x03 - Connect Audio command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x04 - Disconnect Audio command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x05 - Start Voice Recognition command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x06 - Stop Voice Recognition command/response
Command parameters: <none>
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x07 - Volume Control command/response
Command parameters: Volume type (1 octet)
Volume (1 octet)
Response parameters: <none>
Valid volume types: 0x00 = Speaker
0x01 = Microphone
In case of an error, the error response will be returned.
Opcode 0x08 - Device Status Notification command/response
Command parameters: Network state (1 octet)
Service type (1 octet)
Signal strength (1 octet)
Battery level (1 octet)
Response parameters: <none>
Valid network states: 0x00 = Not available
0x01 = Available
Valid service types: 0x00 = Home network
0x01 = Roaming network
In case of an error, the error response will be returned.
Opcode 0x09 - COPS Response command/response
Command parameters: COPS command response (string)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0a - CIND Response command/response
Command parameters: Service (1 octet)
Number of active calls (1 octet)
Number of held calls (1 octet)
Call setup state (1 octet)
Signal strength (1 octet)
Roaming indicator (1 octet)
Battery level (1 octet)
Response parameters: <none>
Valid call setup states: 0x00 = Active
0x01 = Held
0x02 = Dialing
0x03 = Alerting
0x04 = Incoming
0x05 = Waiting
0x06 = Idle
In case of an error, the error response will be returned.
Opcode 0x0b - Formatted AT Response command/response
Command parameters: Pre-formatted AT response (string)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x0c - AT Response command/response
Command parameters: Response code (1 octet)
Error code (1 octet)
Response parameters: <none>
Valid response codes: 0x00 = ERROR
0x01 = OK
In case of an error, the error response will be returned.
Opcode 0x0d - CLCC Response command/response
Command parameters: Call index (1 octet)
Call direction (1 octet)
Call state (1 octet)
Call mode (1 octet)
Call multiparty type (1 octet)
Call number type (1 octet)
Call number (variable)
Response parameters: <none>
Valid call directions: 0x00 = Outgoing
0x01 = Incoming
Valid call states: 0x00 = Active
0x01 = Held
0x02 = Dialing
0x03 = Alerting
0x04 = Incoming
0x05 = Waiting
0x06 = Idle
Valid call modes: 0x00 = Voice
0x01 = Data
0x02 = Fax
Valid multiparty types: 0x00 = Single call
0x01 = Multiparty call
Valid number types: 0x81 = Unknown
0x91 = International
In case of an error, the error response will be returned.
Opcode 0x0e - Phone Status Change command/response
Command parameters: Number of active calls (1 octet)
Number of held calls (1 octet)
Call setup state (1 octet)
Call number type (1 octet)
Call number (variable)
Response parameters: <none>
Valid call setup states: 0x00 = Active
0x01 = Held
0x02 = Dialing
0x03 = Alerting
0x04 = Incoming
0x05 = Waiting
0x06 = Idle
Valid number types: 0x81 = Unknown
0x91 = International
In case of an error, the error response will be returned.
Notifications:
Opcode 0x81 - Connection State notification
Notification parameters: Connection state (1 octect)
Remote address (6 octets)
Valid connection states: 0x00 = Disconnected
0x01 = Connecting
0x02 = Connected
0x03 = SLC connected
0x04 = Disconnecting
Opcode 0x82 - Audio State notification
Notification parameters: Audio state (1 octect)
Remote address (6 octets)
Valid audio states: 0x00 = Disconnected
0x01 = Connecting
0x02 = Connected
0x03 = Disconnecting
Opcode 0x83 - Voice Recognition Command notification
Notification parameters: Voice recognition state (1 octet)
Valid voice recognition states: 0x00 = Stopped
0x01 = Started
Opcode 0x84 - Answer Call Command notification
Notification parameters: <none>
Opcode 0x85 - Hangup Call Command notification
Notification parameters: <none>
Opcode 0x86 - Volume Command notification
Notification parameters: Volume type (1 octet)
Valid volume types: 0x00 = Speaker
0x01 = Microphone
Opcode 0x87 - Dial Call Command notification
Notification parameters: Number (string)
Opcode 0x88 - DTMF Command notification
Notification parameters: Tone (1 octet)
Opcode 0x89 - NREC Command notification
Notification parameters: NREC types (1 octet)
Valid NREC types: 0x00 = Stop
0x01 = Start
Opcode 0x8a - CHLD Command notification
Notification parameters: NREC types (1 octet)
Valid CHLD types: 0x00 = Release and hold
0x01 = Release active and accept held
0x02 = Hold active and accept held
0x03 = Add held call to conference
Opcode 0x8b - CNUM Command notification
Notification parameters: <none>
Opcode 0x8c - CIND Command notification
Notification parameters: <none>
Opcode 0x8d - COPS Command notification
Notification parameters: <none>
Opcode 0x8e - CLCC Command notification
Notification parameters: <none>
Opcode 0x8f - Unknown AT Command notification
Notification parameters: AT command (string)
Opcode 0x90 - Key Pressed Command notification
Notification parameters: <none>
Bluetooth Advanced Audio HAL (ID 6)
===================================
Android HAL name: "a2dp" (BT_PROFILE_ADVANCED_AUDIO_ID)
Commands and responses:
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 = Fail
0x02 = Not ready
0x03 = No memory
0x04 = Busy
0x05 = Done (already completed)
0x06 = Unsupported
0x07 = Parameter invalid
0x08 = Unhandled
0x09 = Authentication failure
0x0a = Remote device down
Opcode 0x01 - Connect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x02 - Disconnect command/response
Command parameters: Remote address (6 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Notifications:
Opcode 0x81 - Connection State notification
Notification parameters: Connection state (1 octect)
Remote address (6 octets)
Valid connection states: 0x00 = Disconnected
0x01 = Connecting
0x02 = Connected
0x03 = Disconnecting
Opcode 0x82 - Audio State notification
Notification parameters: Audio state (1 octect)
Remote address (6 octets)
Valid connection states: 0x00 = Remote suspend
0x01 = Stopped
0x02 = Started
Bluetooth Health HAL (ID 7)
===========================
Android HAL name: "health" (BT_PROFILE_HEALTH_ID)
Opcode 0x00 - Error response
Response parameters: Status (1 octet)
Valid status values: 0x01 = Fail
0x02 = Not ready
0x03 = No memory
0x04 = Busy
0x05 = Done (already completed)
0x06 = Unsupported
0x07 = Parameter invalid
0x08 = Unhandled
0x09 = Authentication failure
0x0a = Remote device down
Opcode 0x01 - Register Application command/response
Command parameters: Application name (string)
Provider name (string)
Service name (string)
Service description (string)
Number of MDEP (1 octet)
MDEP Role[i] (1 octet)
Data type[i] (1 octet)
Channel type[i] (1 octet)
MDEP description (string)
Response parameters: Application ID (2 octets)
In case of an error, the error response will be returned.
Opcode 0x02 - Unregister Application command/response
Command parameters: Application ID (2 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Opcode 0x03 - Connect Channel command/response
Command parameters: Application ID (2 octets)
Remote address (6 octets)
MDEP index (1 octet)
Response parameters: Channel ID (2 octets)
In case of an error, the error response will be returned.
Opcode 0x04 - Destroy Channel command/response
Command parameters: Channel ID (2 octets)
Response parameters: <none>
In case of an error, the error response will be returned.
Notifications:
Opcode 0x81 - Application Registration State notification
Notification parameters: Application ID (2 octects)
Application state (1 octet)
Valid application states: 0x00 = Registration success
0x01 = Registration failed
0x02 = Deregistration success
0x03 = Deregistration failed
Opcode 0x82 - Channel State notification
Notification parameters: Application ID (2 octects)
Remote address (6 octets)
MDEP index (1 octet)
Channel ID (2 octets)
Channel state (1 octet)
File descriptor (inline)
Valid channel states: 0x00 = Connecting
0x01 = Connected
0x02 = Disconnecting
0x03 = Disconnected
0x04 = Destroyed
Bluetooth Remote Control HAL (ID 8)
===================================
Android HAL name: "avrcp" (BT_PROFILE_AV_RC_ID)
Opcode 0x00 - Error response
Opcode 0x01 - Get Play Status command/response
Opcode 0x02 - List Player Application Attributes command/response
Opcode 0x03 - List Player Application Values command/response
Opcode 0x04 - Get Player Application Values command/response
Opcode 0x05 - Get Player Application Attributes Text command/response
Opcode 0x06 - Get Player Application Values Text command/response
Opcode 0x07 - Get Element Attributes Text command/response
Opcode 0x08 - Set Player Attributes Value command/response
Opcode 0x09 - Register Notification command/response
Opcode 0x81 - Get Play Status notification
Opcode 0x82 - List Player Application Attributes notification
...
Bluetooth GATT HAL (ID 9)
=========================
Android HAL name: "gatt" (BT_PROFILE_GATT_ID)
Opcode 0x00 - Error response
Opcode 0x01 - Register Client command/response
Opcode 0x02 - Unregister Client command/response
Opcode 0x03 - Scan command/response
Opcode 0x04 - Connect Device command/response
Opcode 0x05 - Disconnect Device command/response
Opcode 0x06 - Refresh command/response
Opcode 0x07 - Search Service command/response
Opcode 0x08 - Get Included Service command/response
Opcode 0x09 - Get Characteristic command/response
Opcode 0x0a - Get Descriptor command/response
Opcode 0x0b - Read Characteristic command/response
Opcode 0x0c - Write Characteristic command/response
Opcode 0x0d - Read Descriptor command/response
Opcode 0x0e - Write Descriptor command/response
Opcode 0x0f - Execute Write command/response
Opcode 0x10 - Register For Notification command/response
Opcode 0x11 - Deregister For Notification command/response
Opcode 0x12 - Read Remote RSSI command/response
Opcode 0x13 - Get Device Type command/response
Opcode 0x14 - Test Command command/response
Opcode 0x15 - Register Server command/response
Opcode 0x16 - Unregister Server command/response
Opcode 0x17 - Connect Peripheral command/response
Opcode 0x18 - Disconnect Peripheral command/response
Opcode 0x19 - Add Service command/response
Opcode 0x1a - Add Included Service command/response
Opcode 0x1b - Add Characteristic command/response
Opcode 0x1c - Add Descriptor command/response
Opcode 0x1d - Start Service command/response
Opcode 0x1e - Stop Service command/response
Opcode 0x1f - Delete Service command/response
Opcode 0x20 - Send Indication command/response
Opcode 0x21 - Send Response command/response
Opcode 0x81 - Register Client notification
Opcode 0x82 - Scan Result notification
Opcode 0x83 - Connect Device notification
Opcode 0x84 - Disconnect Device notification
Opcode 0x85 - Search Complete notification
Opcode 0x86 - Search Result notification
Opcode 0x87 - Get Characteristic notification
Opcode 0x88 - Get Descriptor notification
Opcode 0x89 - Get Included Service notification
Opcode 0x8a - Register For Notification notification
Opcode 0x8b - Notify notification
Opcode 0x8c - Read Characteristic notification
Opcode 0x8d - Write Characteristic notification
Opcode 0x8e - Execute Write notification
Opcode 0x8f - Read Descriptor notification
Opcode 0x90 - Write Descriptor notification
Opcode 0x91 - Read Remote RSSI notification
Opcode 0x92 - Register Server notification
Opcode 0x93 - Connection notification
Opcode 0x94 - Service Added notification
Opcode 0x95 - Included Service Added notification
Opcode 0x96 - Characteristic Added notification
Opcode 0x97 - Descriptor Added notification
Opcode 0x98 - Service Started notification
Opcode 0x99 - Service Stopped notification
Opcode 0x9a - Service Deleted notification
Opcode 0x9b - Request Read notification
Opcode 0x9c - Request Write notification
Opcode 0x9d - Request Execute Write notification
Opcode 0x9e - Response Confirmation notification
|