-
Notifications
You must be signed in to change notification settings - Fork 0
/
BTD.cpp
1151 lines (1058 loc) · 42.3 KB
/
BTD.cpp
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
/* Copyright (C) 2012 Kristian Lauszus, TKJ Electronics. All rights reserved.
This software may be distributed and modified under the terms of the GNU
General Public License version 2 (GPL2) as published by the Free Software
Foundation and appearing in the file GPL2.TXT included in the packaging of
this file. Please note that GPL2 Section 2[b] requires that all works based
on this software must also be made publicly available under the terms of
the GPL2 ("Copyleft").
Contact information
-------------------
Kristian Lauszus, TKJ Electronics
Web : http://www.tkjelectronics.com
e-mail : kristianl@tkjelectronics.com
*/
#include "BTD.h"
#define DEBUG // Uncomment to print data for debugging
//#define EXTRADEBUG // Uncomment to get even more debugging data
const uint8_t BTD::BTD_EVENT_PIPE = 1;
const uint8_t BTD::BTD_DATAIN_PIPE = 2;
const uint8_t BTD::BTD_DATAOUT_PIPE = 3;
BTD::BTD(USB *p):
pUsb(p), // Pointer to USB class instance - mandatory
bAddress(0), // Device address - mandatory
bNumEP(1), // If config descriptor needs to be parsed
qNextPollTime(0), // Reset NextPollTime
bPollEnable(false) // Don't start polling before dongle is connected
{
for(uint8_t i=0; i<BTD_MAX_ENDPOINTS; i++) {
epInfo[i].epAddr = 0;
epInfo[i].maxPktSize = (i) ? 0 : 8;
epInfo[i].epAttribs = 0;
epInfo[i].bmNakPower = (i) ? USB_NAK_NOWAIT : USB_NAK_MAX_POWER;
}
if (pUsb) // register in USB subsystem
pUsb->RegisterDeviceClass(this); //set devConfig[] entry
}
uint8_t BTD::Init(uint8_t parent, uint8_t port, bool lowspeed) {
uint8_t buf[sizeof(USB_DEVICE_DESCRIPTOR)];
uint8_t rcode;
UsbDevice *p = NULL;
EpInfo *oldep_ptr = NULL;
uint8_t num_of_conf; // number of configurations
uint16_t PID;
uint16_t VID;
// get memory address of USB device address pool
AddressPool &addrPool = pUsb->GetAddressPool();
#ifdef EXTRADEBUG
Notify(PSTR("\r\nBTD Init"));
#endif
// check if address has already been assigned to an instance
if (bAddress) {
#ifdef DEBUG
Notify(PSTR("\r\nAddress in use"));
#endif
return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE;
}
// Get pointer to pseudo device with address 0 assigned
p = addrPool.GetUsbDevicePtr(0);
if (!p) {
#ifdef DEBUG
Notify(PSTR("\r\nAddress not found"));
#endif
return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
}
if (!p->epinfo) {
#ifdef DEBUG
Notify(PSTR("\r\nepinfo is null"));
#endif
return USB_ERROR_EPINFO_IS_NULL;
}
// Save old pointer to EP_RECORD of address 0
oldep_ptr = p->epinfo;
// Temporary assign new pointer to epInfo to p->epinfo in order to avoid toggle inconsistence
p->epinfo = epInfo;
p->lowspeed = lowspeed;
// Get device descriptor
rcode = pUsb->getDevDescr(0, 0, sizeof(USB_DEVICE_DESCRIPTOR), (uint8_t*)buf);// Get device descriptor - addr, ep, nbytes, data
// Restore p->epinfo
p->epinfo = oldep_ptr;
if(rcode)
goto FailGetDevDescr;
// Allocate new address according to device class
bAddress = addrPool.AllocAddress(parent, false, port);
if (!bAddress)
return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL;
// Extract Max Packet Size from device descriptor
epInfo[0].maxPktSize = (uint8_t)((USB_DEVICE_DESCRIPTOR*)buf)->bMaxPacketSize0;
// Assign new address to the device
rcode = pUsb->setAddr( 0, 0, bAddress );
if (rcode) {
p->lowspeed = false;
addrPool.FreeAddress(bAddress);
bAddress = 0;
#ifdef DEBUG
Notify(PSTR("\r\nsetAddr: "));
#endif
PrintHex<uint8_t>(rcode);
return rcode;
}
#ifdef EXTRADEBUG
Notify(PSTR("\r\nAddr: "));
PrintHex<uint8_t>(bAddress);
#endif
p->lowspeed = false;
//get pointer to assigned address record
p = addrPool.GetUsbDevicePtr(bAddress);
if (!p)
return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
p->lowspeed = lowspeed;
// Assign epInfo to epinfo pointer - only EP0 is known
rcode = pUsb->setEpInfoEntry(bAddress, 1, epInfo);
if (rcode)
goto FailSetDevTblEntry;
VID = ((USB_DEVICE_DESCRIPTOR*)buf)->idVendor;
PID = ((USB_DEVICE_DESCRIPTOR*)buf)->idProduct;
if(VID == PS3_VID && (PID == PS3_PID || PID == PS3NAVIGATION_PID || PID == PS3MOVE_PID)) {
/* We only need the Control endpoint, so we don't have to initialize the other endpoints of device */
rcode = pUsb->setConf(bAddress, epInfo[ BTD_CONTROL_PIPE ].epAddr, 1);
if( rcode )
goto FailSetConf;
if(PID == PS3_PID || PID == PS3NAVIGATION_PID) {
#ifdef DEBUG
if(PID == PS3_PID)
Notify(PSTR("\r\nDualshock 3 Controller Connected"));
else // must be a navigation controller
Notify(PSTR("\r\nNavigation Controller Connected"));
#endif
/* Set internal bluetooth address */
setBdaddr(my_bdaddr);
}
else { // must be a Motion controller
#ifdef DEBUG
Notify(PSTR("\r\nMotion Controller Connected"));
#endif
setMoveBdaddr(my_bdaddr);
}
rcode = pUsb->setConf(bAddress, epInfo[ BTD_CONTROL_PIPE ].epAddr, 0); // Reset configuration value
pUsb->setAddr(bAddress, 0, 0); // Reset address
Release(); // Release device
return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED; // return
}
else {
num_of_conf = ((USB_DEVICE_DESCRIPTOR*)buf)->bNumConfigurations;
// check if attached device is a Bluetooth dongle and fill endpoint data structure
// first interface in the configuration must have Bluetooth assigned Class/Subclass/Protocol
// and 3 endpoints - interrupt-IN, bulk-IN, bulk-OUT,
// not necessarily in this order
for (uint8_t i=0; i<num_of_conf; i++) {
ConfigDescParser<USB_CLASS_WIRELESS_CTRL, WI_SUBCLASS_RF, WI_PROTOCOL_BT, CP_MASK_COMPARE_ALL> confDescrParser(this);
rcode = pUsb->getConfDescr(bAddress, 0, i, &confDescrParser);
if(rcode)
goto FailGetConfDescr;
if(bNumEP >= BTD_MAX_ENDPOINTS) // All endpoints extracted
break;
}
if (bNumEP < BTD_MAX_ENDPOINTS)
goto FailUnknownDevice;
// Assign epInfo to epinfo pointer - this time all 3 endpoins
rcode = pUsb->setEpInfoEntry(bAddress, bNumEP, epInfo);
if(rcode)
goto FailSetDevTblEntry;
delay(200); // Give time for address change
// Set Configuration Value
rcode = pUsb->setConf(bAddress, epInfo[ BTD_CONTROL_PIPE ].epAddr, bConfNum);
if(rcode)
goto FailSetConf;
hci_num_reset_loops = 100; // only loop 100 times before trying to send the hci reset command
hci_counter = 0;
hci_state = HCI_INIT_STATE;
watingForConnection = false;
bPollEnable = true;
#ifdef DEBUG
Notify(PSTR("\r\nBluetooth Dongle Initialized"));
#endif
}
return 0; // Successful configuration
/* diagnostic messages */
FailGetDevDescr:
#ifdef DEBUG
Notify(PSTR("\r\ngetDevDescr"));
#endif
goto Fail;
FailSetDevTblEntry:
#ifdef DEBUG
Notify(PSTR("\r\nsetDevTblEn"));
#endif
goto Fail;
FailGetConfDescr:
#ifdef DEBUG
Notify(PSTR("\r\ngetConf"));
#endif
goto Fail;
FailSetConf:
#ifdef DEBUG
Notify(PSTR("\r\nsetConf"));
#endif
goto Fail;
FailUnknownDevice:
#ifdef DEBUG
Notify(PSTR("\r\nUnknown Device Connected - VID: "));
PrintHex<uint16_t>(VID);
Notify(PSTR(" PID: "));
PrintHex<uint16_t>(PID);
#endif
pUsb->setAddr(bAddress, 0, 0); // Reset address
rcode = USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
goto Fail;
Fail:
#ifdef DEBUG
Notify(PSTR("\r\nBTD Init Failed, error code: "));
Serial.print(rcode);
#endif
Release();
return rcode;
}
/* Extracts interrupt-IN, bulk-IN, bulk-OUT endpoint information from config descriptor */
void BTD::EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *pep) {
//ErrorMessage<uint8_t>(PSTR("Conf.Val"),conf);
//ErrorMessage<uint8_t>(PSTR("Iface Num"),iface);
//ErrorMessage<uint8_t>(PSTR("Alt.Set"),alt);
if(alt) // wrong interface - by BT spec, no alt setting
return;
bConfNum = conf;
uint8_t index;
if ((pep->bmAttributes & 0x03) == 3 && (pep->bEndpointAddress & 0x80) == 0x80) // Interrupt In endpoint found
index = BTD_EVENT_PIPE;
else {
if ((pep->bmAttributes & 0x02) == 2) // bulk endpoint found
index = ((pep->bEndpointAddress & 0x80) == 0x80) ? BTD_DATAIN_PIPE : BTD_DATAOUT_PIPE;
else
return;
}
// Fill the rest of endpoint data structure
epInfo[index].epAddr = (pep->bEndpointAddress & 0x0F);
epInfo[index].maxPktSize = (uint8_t)pep->wMaxPacketSize;
#ifdef EXTRADEBUG
PrintEndpointDescriptor(pep);
#endif
if(pollInterval < pep->bInterval) // Set the polling interval as the largest polling interval obtained from endpoints
pollInterval = pep->bInterval;
bNumEP++;
}
void BTD::PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr) {
#ifdef EXTRADEBUG
Notify(PSTR("\r\nEndpoint descriptor:"));
Notify(PSTR("\r\nLength:\t\t"));
PrintHex<uint8_t>(ep_ptr->bLength);
Notify(PSTR("\r\nType:\t\t"));
PrintHex<uint8_t>(ep_ptr->bDescriptorType);
Notify(PSTR("\r\nAddress:\t"));
PrintHex<uint8_t>(ep_ptr->bEndpointAddress);
Notify(PSTR("\r\nAttributes:\t"));
PrintHex<uint8_t>(ep_ptr->bmAttributes);
Notify(PSTR("\r\nMaxPktSize:\t"));
PrintHex<uint16_t>(ep_ptr->wMaxPacketSize);
Notify(PSTR("\r\nPoll Intrv:\t"));
PrintHex<uint8_t>(ep_ptr->bInterval);
#endif
}
/* Performs a cleanup after failed Init() attempt */
uint8_t BTD::Release() {
for (uint8_t i=0; i<BTD_NUMSERVICES; i++)
if (btService[i])
btService[i]->Reset(); // Reset all Bluetooth services
pUsb->GetAddressPool().FreeAddress(bAddress);
bAddress = 0;
bPollEnable = false;
bNumEP = 1; // must have to be reset to 1
return 0;
}
uint8_t BTD::Poll() {
if (!bPollEnable)
return 0;
if (qNextPollTime <= millis()) { // Don't poll if shorter than polling interval
qNextPollTime = millis() + pollInterval; // Set new poll time
HCI_event_task(); // poll the HCI event pipe
ACL_event_task(); // start polling the ACL input pipe too, though discard data until connected
}
return 0;
}
void BTD::HCI_event_task() {
/* check the event pipe*/
uint16_t MAX_BUFFER_SIZE = BULK_MAXPKTSIZE; // Request more than 16 bytes anyway, the inTransfer routine will take care of this
uint8_t rcode = pUsb->inTransfer(bAddress, epInfo[ BTD_EVENT_PIPE ].epAddr, &MAX_BUFFER_SIZE, hcibuf); // input on endpoint 1
if(!rcode || rcode == hrNAK) // Check for errors
{
switch (hcibuf[0]) //switch on event type
{
case EV_COMMAND_COMPLETE:
if (!hcibuf[5]) { // Check if command succeeded
hci_event_flag |= HCI_FLAG_CMD_COMPLETE; // set command complete flag
if((hcibuf[3] == 0x01) && (hcibuf[4] == 0x10)) { // parameters from read local version information
hci_version = hcibuf[6]; // Used to check if it supports 2.0+EDR - see http://www.bluetooth.org/Technical/AssignedNumbers/hci.htm
hci_event_flag |= HCI_FLAG_READ_VERSION;
} else if((hcibuf[3] == 0x09) && (hcibuf[4] == 0x10)) { // parameters from read local bluetooth address
for (uint8_t i = 0; i < 6; i++)
my_bdaddr[i] = hcibuf[6 + i];
hci_event_flag |= HCI_FLAG_READ_BDADDR;
}
}
break;
case EV_COMMAND_STATUS:
if(hcibuf[2]) { // show status on serial if not OK
#ifdef DEBUG
Notify(PSTR("\r\nHCI Command Failed: "));
PrintHex<uint8_t>(hcibuf[2]);
Notify(PSTR(" "));
PrintHex<uint8_t>(hcibuf[4]);
Notify(PSTR(" "));
PrintHex<uint8_t>(hcibuf[5]);
#endif
}
break;
case EV_INQUIRY_COMPLETE:
if(inquiry_counter >= 5) {
inquiry_counter = 0;
#ifdef DEBUG
Notify(PSTR("\r\nCouldn't find Wiimote"));
#endif
connectToWii = false;
pairWithWii = false;
hci_state = HCI_SCANNING_STATE;
}
inquiry_counter++;
break;
case EV_INQUIRY_RESULT:
if (hcibuf[2]) { // Check that there is more than zero responses
#ifdef EXTRADEBUG
Notify(PSTR("\r\nNumber of responses: "));
Serial.print(hcibuf[2]);
#endif
for(uint8_t i = 0; i < hcibuf[2]; i++) {
if((hcibuf[4+8*hcibuf[2]+3*i] == 0x04 && hcibuf[5+8*hcibuf[2]+3*i] == 0x25 && hcibuf[6+8*hcibuf[2]+3*i] == 0x00) || (hcibuf[4+8*hcibuf[2]+3*i] == 0x08 && hcibuf[5+8*hcibuf[2]+3*i] == 0x05 && hcibuf[6+8*hcibuf[2]+3*i] == 0x00)) { // See http://bluetooth-pentest.narod.ru/software/bluetooth_class_of_device-service_generator.html and http://wiibrew.org/wiki/Wiimote#SDP_information
if(hcibuf[4+8*hcibuf[2]+3*i] == 0x08) // Check if it's the new Wiimote with motion plus inside that was detected
motionPlusInside = true;
else
motionPlusInside = false;
disc_bdaddr[0] = hcibuf[3+6*i];
disc_bdaddr[1] = hcibuf[4+6*i];
disc_bdaddr[2] = hcibuf[5+6*i];
disc_bdaddr[3] = hcibuf[6+6*i];
disc_bdaddr[4] = hcibuf[7+6*i];
disc_bdaddr[5] = hcibuf[8+6*i];
hci_event_flag |= HCI_FLAG_WII_FOUND;
break;
}
#ifdef EXTRADEBUG
else {
Notify(PSTR("\r\nClass of device: "));
PrintHex<uint8_t>(hcibuf[6+8*hcibuf[2]+3*i]);
Notify(PSTR(" "));
PrintHex<uint8_t>(hcibuf[5+8*hcibuf[2]+3*i]);
Notify(PSTR(" "));
PrintHex<uint8_t>(hcibuf[4+8*hcibuf[2]+3*i]);
}
#endif
}
}
break;
case EV_CONNECT_COMPLETE:
hci_event_flag |= HCI_FLAG_CONNECT_EVENT;
if (!hcibuf[2]) { // check if connected OK
hci_handle = hcibuf[3] | ((hcibuf[4] & 0x0F) << 8); // store the handle for the ACL connection
hci_event_flag |= HCI_FLAG_CONN_COMPLETE; // set connection complete flag
}
#ifdef EXTRADEBUG
else {
Notify(PSTR("\r\nConnection Failed"));
}
#endif
break;
case EV_DISCONNECT_COMPLETE:
if (!hcibuf[2]) { // check if disconnected OK
hci_event_flag |= HCI_FLAG_DISCONN_COMPLETE; // set disconnect command complete flag
hci_event_flag &= ~HCI_FLAG_CONN_COMPLETE; // clear connection complete flag
}
break;
case EV_REMOTE_NAME_COMPLETE:
if (!hcibuf[2]) { // check if reading is OK
for (uint8_t i = 0; i < 30; i++)
remote_name[i] = hcibuf[9 + i]; //store first 30 bytes
hci_event_flag |= HCI_FLAG_REMOTE_NAME_COMPLETE;
}
break;
case EV_INCOMING_CONNECT:
disc_bdaddr[0] = hcibuf[2];
disc_bdaddr[1] = hcibuf[3];
disc_bdaddr[2] = hcibuf[4];
disc_bdaddr[3] = hcibuf[5];
disc_bdaddr[4] = hcibuf[6];
disc_bdaddr[5] = hcibuf[7];
hci_event_flag |= HCI_FLAG_INCOMING_REQUEST;
break;
case EV_PIN_CODE_REQUEST:
if(pairWithWii) {
#ifdef DEBUG
Notify(PSTR("\r\nPairing with wiimote"));
#endif
hci_pin_code_request_reply();
}
else if(btdPin != NULL) {
#ifdef DEBUG
Notify(PSTR("\r\nBluetooth pin is set too: "));
Serial.print(btdPin);
#endif
hci_pin_code_request_reply();
}
else {
#ifdef DEBUG
Notify(PSTR("\r\nNo pin was set"));
#endif
hci_pin_code_negative_request_reply();
}
break;
case EV_LINK_KEY_REQUEST:
#ifdef DEBUG
Notify(PSTR("\r\nReceived Key Request"));
#endif
hci_link_key_request_negative_reply();
break;
case EV_AUTHENTICATION_COMPLETE:
if(pairWithWii && !connectToWii) {
#ifdef DEBUG
Notify(PSTR("\r\nPairing successful"));
#endif
connectToWii = true; // Only send the ACL data to the Wii service
}
break;
/* We will just ignore the following events */
case EV_NUM_COMPLETE_PKT:
case EV_ROLE_CHANGED:
case EV_PAGE_SCAN_REP_MODE:
case EV_LOOPBACK_COMMAND:
case EV_DATA_BUFFER_OVERFLOW:
case EV_CHANGE_CONNECTION_LINK:
case EV_MAX_SLOTS_CHANGE:
case EV_QOS_SETUP_COMPLETE:
case EV_LINK_KEY_NOTIFICATION:
case EV_ENCRYPTION_CHANGE:
case EV_READ_REMOTE_VERSION_INFORMATION_COMPLETE:
break;
#ifdef EXTRADEBUG
default:
if(hcibuf[0] != 0x00) {
Notify(PSTR("\r\nUnmanaged HCI Event: "));
PrintHex<uint8_t>(hcibuf[0]);
}
break;
#endif
} // switch
HCI_task();
}
#ifdef EXTRADEBUG
else {
Notify(PSTR("\r\nHCI event error: "));
PrintHex<uint8_t>(rcode);
}
#endif
}
/* Poll Bluetooth and print result */
void BTD::HCI_task() {
switch (hci_state){
case HCI_INIT_STATE:
hci_counter++;
if (hci_counter > hci_num_reset_loops) { // wait until we have looped x times to clear any old events
hci_reset();
hci_state = HCI_RESET_STATE;
hci_counter = 0;
}
break;
case HCI_RESET_STATE:
hci_counter++;
if (hci_cmd_complete) {
hci_counter = 0;
#ifdef DEBUG
Notify(PSTR("\r\nHCI Reset complete"));
#endif
hci_state = HCI_BDADDR_STATE;
hci_read_bdaddr();
}
else if (hci_counter > hci_num_reset_loops) {
hci_num_reset_loops *= 10;
if(hci_num_reset_loops > 2000)
hci_num_reset_loops = 2000;
#ifdef DEBUG
Notify(PSTR("\r\nNo response to HCI Reset"));
#endif
hci_state = HCI_INIT_STATE;
hci_counter = 0;
}
break;
case HCI_BDADDR_STATE:
if (hci_read_bdaddr_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nLocal Bluetooth Address: "));
for(int8_t i = 5; i > 0;i--) {
PrintHex<uint8_t>(my_bdaddr[i]);
Notify(PSTR(":"));
}
PrintHex<uint8_t>(my_bdaddr[0]);
#endif
hci_read_local_version_information();
hci_state = HCI_LOCAL_VERSION_STATE;
}
break;
case HCI_LOCAL_VERSION_STATE: // The local version is used by the PS3BT class
if (hci_read_version_complete) {
if(btdName != NULL) {
hci_set_local_name(btdName);
hci_state = HCI_SET_NAME_STATE;
} else
hci_state = HCI_CHECK_WII_SERVICE;
}
break;
case HCI_SET_NAME_STATE:
if (hci_cmd_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nThe name is set to: "));
Serial.print(btdName);
#endif
hci_state = HCI_CHECK_WII_SERVICE;
}
break;
case HCI_CHECK_WII_SERVICE:
if(pairWithWii) { // Check if it should try to connect to a wiimote
#ifdef DEBUG
Notify(PSTR("\r\nStarting inquiry\r\nPress 1 & 2 on the Wiimote"));
#endif
hci_inquiry();
hci_state = HCI_INQUIRY_STATE;
}
else
hci_state = HCI_SCANNING_STATE; // Don't try to connect to a Wiimote
break;
case HCI_INQUIRY_STATE:
if(hci_wii_found) {
hci_inquiry_cancel(); // Stop inquiry
#ifdef DEBUG
Notify(PSTR("\r\nWiimote found"));
if(motionPlusInside)
Notify(PSTR(" with Motion Plus Inside"));
Notify(PSTR("\r\nNow just create the instance like so:"));
Notify(PSTR("\r\nWII Wii(&Btd);"));
Notify(PSTR("\r\nAnd then press any button on the Wiimote"));
#endif
hci_state = HCI_CONNECT_WII_STATE;
}
break;
case HCI_CONNECT_WII_STATE:
if(hci_cmd_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nConnecting to Wiimote"));
#endif
hci_connect();
hci_state = HCI_CONNECTED_WII_STATE;
}
break;
case HCI_CONNECTED_WII_STATE:
if(hci_connect_event) {
if(hci_connect_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nConnected to Wiimote"));
#endif
hci_authentication_request(); // This will start the pairing with the wiimote
hci_state = HCI_SCANNING_STATE;
} else {
#ifdef DEBUG
Notify(PSTR("\r\nTrying to connect one more time..."));
#endif
hci_connect(); // Try to connect one more time
}
}
break;
case HCI_SCANNING_STATE:
if(!connectToWii && !pairWithWii) {
#ifdef DEBUG
Notify(PSTR("\r\nWait For Incoming Connection Request"));
#endif
hci_write_scan_enable();
watingForConnection = true;
hci_state = HCI_CONNECT_IN_STATE;
}
break;
case HCI_CONNECT_IN_STATE:
if(hci_incoming_connect_request) {
watingForConnection = false;
#ifdef DEBUG
Notify(PSTR("\r\nIncoming Connection Request"));
#endif
hci_remote_name();
hci_state = HCI_REMOTE_NAME_STATE;
} else if (hci_disconnect_complete)
hci_state = HCI_DISCONNECT_STATE;
break;
case HCI_REMOTE_NAME_STATE:
if(hci_remote_name_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nRemote Name: "));
for (uint8_t i = 0; i < 30; i++) {
if(remote_name[i] == NULL)
break;
Serial.write(remote_name[i]);
}
#endif
hci_accept_connection();
hci_state = HCI_CONNECTED_STATE;
}
break;
case HCI_CONNECTED_STATE:
if (hci_connect_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nConnected to Device: "));
for(int8_t i = 5; i>0;i--) {
PrintHex<uint8_t>(disc_bdaddr[i]);
Notify(PSTR(":"));
}
PrintHex<uint8_t>(disc_bdaddr[0]);
#endif
l2capConnectionClaimed = false;
if(strncmp((const char*)remote_name, "Nintendo", 8) == 0) {
#ifdef DEBUG
Notify(PSTR("\r\nWiimote is connecting"));
#endif
if(strncmp((const char*)remote_name, "Nintendo RVL-CNT-01-TR", 22) == 0) {
#ifdef DEBUG
Notify(PSTR(" with Motion Plus Inside"));
#endif
motionPlusInside = true;
} else
motionPlusInside = false;
incomingWii = true;
}
hci_event_flag = 0;
hci_state = HCI_DONE_STATE;
}
break;
case HCI_DONE_STATE:
hci_counter++;
if (hci_counter > 1000) { // Wait until we have looped 1000 times to make sure that the L2CAP connection has been started
hci_counter = 0;
hci_state = HCI_SCANNING_STATE;
}
break;
case HCI_DISCONNECT_STATE:
if (hci_disconnect_complete) {
#ifdef DEBUG
Notify(PSTR("\r\nHCI Disconnected from Device"));
#endif
hci_event_flag = 0; // Clear all flags
// Reset all buffers
for (uint8_t i = 0; i < BULK_MAXPKTSIZE; i++)
hcibuf[i] = 0;
for (uint8_t i = 0; i < BULK_MAXPKTSIZE; i++)
l2capinbuf[i] = 0;
hci_state = HCI_SCANNING_STATE;
}
break;
default:
break;
}
}
void BTD::ACL_event_task() {
uint16_t MAX_BUFFER_SIZE = BULK_MAXPKTSIZE;
uint8_t rcode = pUsb->inTransfer(bAddress, epInfo[ BTD_DATAIN_PIPE ].epAddr, &MAX_BUFFER_SIZE, l2capinbuf); // input on endpoint 2
if(!rcode) { // Check for errors
for (uint8_t i=0; i<BTD_NUMSERVICES; i++)
if (btService[i])
btService[i]->ACLData(l2capinbuf);
}
#ifdef EXTRADEBUG
else if (rcode != hrNAK) {
Notify(PSTR("\r\nACL data in error: "));
PrintHex<uint8_t>(rcode);
}
#endif
for (uint8_t i=0; i<BTD_NUMSERVICES; i++)
if (btService[i])
btService[i]->Run();
}
/************************************************************/
/* HCI Commands */
/************************************************************/
void BTD::HCI_Command(uint8_t* data, uint16_t nbytes) {
hci_event_flag &= ~HCI_FLAG_CMD_COMPLETE;
pUsb->ctrlReq(bAddress, epInfo[ BTD_CONTROL_PIPE ].epAddr, bmREQ_HCI_OUT, 0x00, 0x00, 0x00 ,0x00, nbytes, nbytes, data, NULL);
}
void BTD::hci_reset() {
hci_event_flag = 0; // Clear all the flags
hcibuf[0] = 0x03; // HCI OCF = 3
hcibuf[1] = 0x03 << 2; // HCI OGF = 3
hcibuf[2] = 0x00;
HCI_Command(hcibuf, 3);
}
void BTD::hci_write_scan_enable() {
hci_event_flag &= ~HCI_FLAG_INCOMING_REQUEST;
hcibuf[0] = 0x1A; // HCI OCF = 1A
hcibuf[1] = 0x03 << 2; // HCI OGF = 3
hcibuf[2] = 0x01; // parameter length = 1
if(btdName != NULL)
hcibuf[3] = 0x03; // Inquiry Scan enabled. Page Scan enabled.
else
hcibuf[3] = 0x02; // Inquiry Scan disabled. Page Scan enabled.
HCI_Command(hcibuf, 4);
}
void BTD::hci_write_scan_disable() {
hcibuf[0] = 0x1A; // HCI OCF = 1A
hcibuf[1] = 0x03 << 2; // HCI OGF = 3
hcibuf[2] = 0x01; // parameter length = 1
hcibuf[3] = 0x00; // Inquiry Scan disabled. Page Scan disabled.
HCI_Command(hcibuf, 4);
}
void BTD::hci_read_bdaddr() {
hcibuf[0] = 0x09; // HCI OCF = 9
hcibuf[1] = 0x04 << 2; // HCI OGF = 4
hcibuf[2] = 0x00;
HCI_Command(hcibuf, 3);
}
void BTD::hci_read_local_version_information() {
hcibuf[0] = 0x01; // HCI OCF = 1
hcibuf[1] = 0x04 << 2; // HCI OGF = 4
hcibuf[2] = 0x00;
HCI_Command(hcibuf, 3);
}
void BTD::hci_accept_connection() {
hci_event_flag &= ~HCI_FLAG_CONN_COMPLETE;
hcibuf[0] = 0x09; // HCI OCF = 9
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x07; // parameter length 7
hcibuf[3] = disc_bdaddr[0]; // 6 octet bdaddr
hcibuf[4] = disc_bdaddr[1];
hcibuf[5] = disc_bdaddr[2];
hcibuf[6] = disc_bdaddr[3];
hcibuf[7] = disc_bdaddr[4];
hcibuf[8] = disc_bdaddr[5];
hcibuf[9] = 0x00; //switch role to master
HCI_Command(hcibuf, 10);
}
void BTD::hci_remote_name() {
hci_event_flag &= ~HCI_FLAG_REMOTE_NAME_COMPLETE;
hcibuf[0] = 0x19; // HCI OCF = 19
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x0A; // parameter length = 10
hcibuf[3] = disc_bdaddr[0]; // 6 octet bdaddr
hcibuf[4] = disc_bdaddr[1];
hcibuf[5] = disc_bdaddr[2];
hcibuf[6] = disc_bdaddr[3];
hcibuf[7] = disc_bdaddr[4];
hcibuf[8] = disc_bdaddr[5];
hcibuf[9] = 0x01; //Page Scan Repetition Mode
hcibuf[10] = 0x00; //Reserved
hcibuf[11] = 0x00; //Clock offset - low byte
hcibuf[12] = 0x00; //Clock offset - high byte
HCI_Command(hcibuf, 13);
}
void BTD::hci_set_local_name(const char* name) {
hcibuf[0] = 0x13; // HCI OCF = 13
hcibuf[1] = 0x03 << 2; // HCI OGF = 3
hcibuf[2] = strlen(name)+1; // parameter length = the length of the string + end byte
uint8_t i;
for(i = 0; i < strlen(name); i++)
hcibuf[i+3] = name[i];
hcibuf[i+3] = 0x00; // End of string
HCI_Command(hcibuf, 4+strlen(name));
}
void BTD::hci_inquiry() {
hci_event_flag &= ~HCI_FLAG_WII_FOUND;
hcibuf[0] = 0x01;
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x05; // Parameter Total Length = 5
hcibuf[3] = 0x33; // LAP: Genera/Unlimited Inquiry Access Code (GIAC = 0x9E8B33) - see https://www.bluetooth.org/Technical/AssignedNumbers/baseband.htm
hcibuf[4] = 0x8B;
hcibuf[5] = 0x9E;
hcibuf[6] = 0x30; // Inquiry time = 61.44 sec (maximum)
hcibuf[7] = 0x0A; // 10 number of responses
HCI_Command(hcibuf, 8);
}
void BTD::hci_inquiry_cancel() {
hcibuf[0] = 0x02;
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x0; // Parameter Total Length = 0
HCI_Command(hcibuf, 3);
}
void BTD::hci_connect() {
hci_event_flag &= ~(HCI_FLAG_CONN_COMPLETE | HCI_FLAG_CONNECT_EVENT);
hcibuf[0] = 0x05;
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x0D; // parameter Total Length = 13
hcibuf[3] = disc_bdaddr[0]; // 6 octet bdaddr
hcibuf[4] = disc_bdaddr[1];
hcibuf[5] = disc_bdaddr[2];
hcibuf[6] = disc_bdaddr[3];
hcibuf[7] = disc_bdaddr[4];
hcibuf[8] = disc_bdaddr[5];
hcibuf[9] = 0x18; // DM1 or DH1 may be used
hcibuf[10] = 0xCC; // DM3, DH3, DM5, DH5 may be used
hcibuf[11] = 0x01; // Page repetition mode R1
hcibuf[12] = 0x00; // Reserved
hcibuf[13] = 0x00; // Clock offset
hcibuf[14] = 0x00; // Invalid clock offset
hcibuf[15] = 0x00; // Do not allow role switch
HCI_Command(hcibuf, 16);
}
void BTD::hci_pin_code_request_reply() {
hcibuf[0] = 0x0D; // HCI OCF = 0D
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x17; // parameter length 23
hcibuf[3] = disc_bdaddr[0]; // 6 octet bdaddr
hcibuf[4] = disc_bdaddr[1];
hcibuf[5] = disc_bdaddr[2];
hcibuf[6] = disc_bdaddr[3];
hcibuf[7] = disc_bdaddr[4];
hcibuf[8] = disc_bdaddr[5];
if(pairWithWii) {
hcibuf[9] = 6; // Pin length is the length of the bt address
hcibuf[10] = disc_bdaddr[0]; // The pin is the Wiimotes bt address backwards
hcibuf[11] = disc_bdaddr[1];
hcibuf[12] = disc_bdaddr[2];
hcibuf[13] = disc_bdaddr[3];
hcibuf[14] = disc_bdaddr[4];
hcibuf[15] = disc_bdaddr[5];
for(uint8_t i = 16; i < 26; i++)
hcibuf[i] = 0x00; // The rest should be 0
} else {
hcibuf[9] = strlen(btdPin); // Length of pin
uint8_t i;
for(i = 0; i < strlen(btdPin); i++) // The maximum size of the pin is 16
hcibuf[i+10] = btdPin[i];
for(;i < 16; i++)
hcibuf[i+10] = 0x00; // The rest should be 0
}
HCI_Command(hcibuf, 26);
}
void BTD::hci_pin_code_negative_request_reply() {
hcibuf[0] = 0x0E; // HCI OCF = 0E
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x06; // parameter length 6
hcibuf[3] = disc_bdaddr[0]; // 6 octet bdaddr
hcibuf[4] = disc_bdaddr[1];
hcibuf[5] = disc_bdaddr[2];
hcibuf[6] = disc_bdaddr[3];
hcibuf[7] = disc_bdaddr[4];
hcibuf[8] = disc_bdaddr[5];
HCI_Command(hcibuf, 9);
}
void BTD::hci_link_key_request_negative_reply() {
hcibuf[0] = 0x0C; // HCI OCF = 0C
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x06; // parameter length 6
hcibuf[3] = disc_bdaddr[0]; // 6 octet bdaddr
hcibuf[4] = disc_bdaddr[1];
hcibuf[5] = disc_bdaddr[2];
hcibuf[6] = disc_bdaddr[3];
hcibuf[7] = disc_bdaddr[4];
hcibuf[8] = disc_bdaddr[5];
HCI_Command(hcibuf, 9);
}
void BTD::hci_authentication_request() {
hcibuf[0] = 0x11; // HCI OCF = 11
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x02; // parameter length = 2
hcibuf[3] = (uint8_t)(hci_handle & 0xFF);//connection handle - low byte
hcibuf[4] = (uint8_t)((hci_handle >> 8) & 0x0F);//connection handle - high byte
HCI_Command(hcibuf, 5);
}
void BTD::hci_disconnect(uint16_t handle) { // This is called by the different services
hci_event_flag &= ~HCI_FLAG_DISCONN_COMPLETE;
hcibuf[0] = 0x06; // HCI OCF = 6
hcibuf[1] = 0x01 << 2; // HCI OGF = 1
hcibuf[2] = 0x03; // parameter length = 3
hcibuf[3] = (uint8_t)(handle & 0xFF);//connection handle - low byte
hcibuf[4] = (uint8_t)((handle >> 8) & 0x0F);//connection handle - high byte
hcibuf[5] = 0x13; // reason
HCI_Command(hcibuf, 6);
}
/*******************************************************************
* *
* HCI ACL Data Packet *
* *
* buf[0] buf[1] buf[2] buf[3]
* 0 4 8 11 12 16 24 31 MSB
* .-+-+-+-+-+-+-+-|-+-+-+-|-+-|-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-.
* | HCI Handle |PB |BC | Data Total Length | HCI ACL Data Packet
* .-+-+-+-+-+-+-+-|-+-+-+-|-+-|-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-.
*
* buf[4] buf[5] buf[6] buf[7]
* 0 8 16 31 MSB
* .-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-.
* | Length | Channel ID | Basic L2CAP header
* .-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-.
*
* buf[8] buf[9] buf[10] buf[11]
* 0 8 16 31 MSB
* .-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-.
* | Code | Identifier | Length | Control frame (C-frame)
* .-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-. (signaling packet format)
*/
/************************************************************/
/* L2CAP Commands */
/************************************************************/
void BTD::L2CAP_Command(uint16_t handle, uint8_t* data, uint8_t nbytes, uint8_t channelLow, uint8_t channelHigh) {
uint8_t buf[8+nbytes];
buf[0] = (uint8_t)(handle & 0xff); // HCI handle with PB,BC flag
buf[1] = (uint8_t)(((handle >> 8) & 0x0f) | 0x20);
buf[2] = (uint8_t)((4 + nbytes) & 0xff); // HCI ACL total data length
buf[3] = (uint8_t)((4 + nbytes) >> 8);
buf[4] = (uint8_t)(nbytes & 0xff); // L2CAP header: Length
buf[5] = (uint8_t)(nbytes >> 8);
buf[6] = channelLow;
buf[7] = channelHigh;
for (uint16_t i = 0; i < nbytes; i++) // L2CAP C-frame
buf[8 + i] = data[i];
uint8_t rcode = pUsb->outTransfer(bAddress, epInfo[ BTD_DATAOUT_PIPE ].epAddr, (8 + nbytes), buf);
if(rcode) {
delay(100); // This small delay prevents it from overflowing if it fails
#ifdef DEBUG
Notify(PSTR("\r\nError sending L2CAP message: 0x"));