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
|
/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#define INCLUDE_FROM_BLUETOOTH_ACLPACKETS_C
#include "BluetoothACLPackets.h"
void Bluetooth_ACLTask(void)
{
Bluetooth_ProcessACLPackets();
for (uint8_t i = 0; i < BLUETOOTH_MAX_OPEN_CHANNELS; i++)
{
Bluetooth_Channel_t* ChannelData = &Bluetooth_Connection.Channels[i];
bool MustSendConfigReq = true;
switch (ChannelData->State)
{
case Channel_Config_WaitConfig:
ChannelData->State = Channel_Config_WaitReqResp;
break;
case Channel_Config_WaitSendConfig:
ChannelData->State = Channel_Config_WaitResp;
break;
default:
MustSendConfigReq = false;
break;
}
if (MustSendConfigReq)
{
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_ConfigurationReq_t ConfigurationRequest;
struct
{
BT_Config_Option_Header_t Header;
uint16_t Value;
} Option_LocalMTU;
} PacketData;
PacketData.SignalCommandHeader.Code = BT_SIGNAL_CONFIGURATION_REQUEST;
PacketData.SignalCommandHeader.Identifier = ++Bluetooth_Connection.SignallingIdentifier;
PacketData.SignalCommandHeader.Length = sizeof(PacketData.ConfigurationRequest) +
sizeof(PacketData.Option_LocalMTU);
PacketData.ConfigurationRequest.DestinationChannel = ChannelData->RemoteNumber;
PacketData.ConfigurationRequest.Flags = 0;
PacketData.Option_LocalMTU.Header.Type = BT_CONFIG_OPTION_MTU;
PacketData.Option_LocalMTU.Header.Length = sizeof(PacketData.Option_LocalMTU.Value);
PacketData.Option_LocalMTU.Value = ChannelData->LocalMTU;
Bluetooth_SendPacket(&PacketData, sizeof(PacketData), NULL);
BT_ACL_DEBUG(1, ">> L2CAP Configuration Request", NULL);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", PacketData.ConfigurationRequest.DestinationChannel);
}
}
}
static void Bluetooth_ProcessACLPackets(void)
{
BT_ACL_Header_t ACLPacketHeader;
BT_DataPacket_Header_t DataHeader;
Pipe_SelectPipe(BLUETOOTH_DATA_IN_PIPE);
Pipe_Unfreeze();
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_Freeze();
return;
}
Pipe_Read_Stream_LE(&ACLPacketHeader, sizeof(ACLPacketHeader));
Pipe_Read_Stream_LE(&DataHeader, sizeof(DataHeader));
BT_ACL_DEBUG(2, "", NULL);
BT_ACL_DEBUG(2, "Packet Received", NULL);
BT_ACL_DEBUG(2, "-- Connection Handle: 0x%04X", (ACLPacketHeader.ConnectionHandle & 0x0FFF));
BT_ACL_DEBUG(2, "-- Data Length: 0x%04X", ACLPacketHeader.DataLength);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", DataHeader.DestinationChannel);
BT_ACL_DEBUG(2, "-- Payload Length: 0x%04X", DataHeader.PayloadLength);
if (DataHeader.DestinationChannel == BT_CHANNEL_SIGNALING)
{
BT_Signal_Header_t SignalCommandHeader;
Pipe_Read_Stream_LE(&SignalCommandHeader, sizeof(SignalCommandHeader));
switch (SignalCommandHeader.Code)
{
case BT_SIGNAL_CONNECTION_REQUEST:
Bluetooth_Signal_ConnectionReq(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_CONNECTION_RESPONSE:
Bluetooth_Signal_ConnectionResp(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_CONFIGURATION_REQUEST:
Bluetooth_Signal_ConfigurationReq(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_CONFIGURATION_RESPONSE:
Bluetooth_Signal_ConfigurationResp(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_DISCONNECTION_REQUEST:
Bluetooth_Signal_DisconnectionReq(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_DISCONNECTION_RESPONSE:
Bluetooth_Signal_DisconnectionResp(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_ECHO_REQUEST:
Bluetooth_Signal_EchoReq(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
case BT_SIGNAL_INFORMATION_REQUEST:
Bluetooth_Signal_InformationReq(&ACLPacketHeader, &DataHeader, &SignalCommandHeader);
break;
default:
BT_ACL_DEBUG(1, "<< Unknown Signaling Command 0x%02X", SignalCommandHeader.Code);
Pipe_Discard_Stream(ACLPacketHeader.DataLength);
Pipe_ClearIN();
Pipe_Freeze();
break;
}
}
else
{
Bluetooth_PacketReceived(&DataHeader.PayloadLength, Bluetooth_GetChannelData(DataHeader.DestinationChannel, false));
Pipe_SelectPipe(BLUETOOTH_DATA_IN_PIPE);
Pipe_Discard_Stream(DataHeader.PayloadLength);
Pipe_ClearIN();
Pipe_Freeze();
}
}
uint8_t Bluetooth_SendPacket(void* Data, uint16_t DataLen, Bluetooth_Channel_t* Channel)
{
BT_ACL_Header_t ACLPacketHeader;
BT_DataPacket_Header_t DataHeader;
if (!(Bluetooth_Connection.IsConnected))
return BT_SENDPACKET_NotConnected;
if ((Channel != NULL) && (Channel->State != Channel_Open))
return BT_SENDPACKET_ChannelNotOpen;
// TODO: Add packet fragmentation here after retrieving the device's signal channel MTU
ACLPacketHeader.ConnectionHandle = (Bluetooth_Connection.ConnectionHandle | BT_ACL_FIRST_AUTOFLUSH);
ACLPacketHeader.DataLength = sizeof(DataHeader) + DataLen;
DataHeader.PayloadLength = DataLen;
DataHeader.DestinationChannel = (Channel == NULL) ? BT_CHANNEL_SIGNALING : Channel->RemoteNumber;
Pipe_SelectPipe(BLUETOOTH_DATA_OUT_PIPE);
Pipe_Unfreeze();
Pipe_Write_Stream_LE(&ACLPacketHeader, sizeof(ACLPacketHeader));
Pipe_Write_Stream_LE(&DataHeader, sizeof(DataHeader));
Pipe_Write_Stream_LE(Data, DataLen);
Pipe_ClearOUT();
Pipe_Freeze();
BT_ACL_DEBUG(2, "", NULL);
BT_ACL_DEBUG(2, "Packet Sent", NULL);
BT_ACL_DEBUG(2, "-- Connection Handle: 0x%04X", (ACLPacketHeader.ConnectionHandle & 0x0FFF));
BT_ACL_DEBUG(2, "-- Data Length: 0x%04X", ACLPacketHeader.DataLength);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", DataHeader.DestinationChannel);
BT_ACL_DEBUG(2, "-- Payload Length: 0x%04X", DataHeader.PayloadLength);
return BT_SENDPACKET_NoError;
}
Bluetooth_Channel_t* Bluetooth_OpenChannel(uint16_t PSM)
{
Bluetooth_Channel_t* ChannelData = NULL;
for (uint8_t i = 0; i < BLUETOOTH_MAX_OPEN_CHANNELS; i++)
{
if (Bluetooth_Connection.Channels[i].State == Channel_Closed)
{
ChannelData = &Bluetooth_Connection.Channels[i];
ChannelData->LocalNumber = (BT_CHANNELNUMBER_BASEOFFSET + i);
break;
}
}
if (ChannelData == NULL)
return NULL;
ChannelData->RemoteNumber = 0;
ChannelData->PSM = PSM;
ChannelData->LocalMTU = MAXIMUM_CHANNEL_MTU;
ChannelData->State = Channel_Config_WaitConfig;
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_ConnectionReq_t ConnectionRequest;
} PacketData;
PacketData.SignalCommandHeader.Code = BT_SIGNAL_CONNECTION_REQUEST;
PacketData.SignalCommandHeader.Identifier = ++Bluetooth_Connection.SignallingIdentifier;
PacketData.SignalCommandHeader.Length = sizeof(PacketData.ConnectionRequest);
PacketData.ConnectionRequest.PSM = PSM;
PacketData.ConnectionRequest.SourceChannel = ChannelData->LocalNumber;
Bluetooth_SendPacket(&PacketData, sizeof(PacketData), NULL);
BT_ACL_DEBUG(1, ">> L2CAP Connection Request", NULL);
BT_ACL_DEBUG(2, "-- PSM 0x%04X", PacketData.ConnectionRequest.PSM);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", PacketData.ConnectionRequest.SourceChannel);
return ChannelData;
}
void Bluetooth_CloseChannel(Bluetooth_Channel_t* Channel)
{
if ((Channel == NULL) || (Channel->State == Channel_Closed))
return;
Channel->State = Channel_WaitDisconnect;
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_DisconnectionReq_t DisconnectionRequest;
} PacketData;
PacketData.SignalCommandHeader.Code = BT_SIGNAL_DISCONNECTION_REQUEST;
PacketData.SignalCommandHeader.Identifier = ++Bluetooth_Connection.SignallingIdentifier;
PacketData.SignalCommandHeader.Length = sizeof(PacketData.DisconnectionRequest);
PacketData.DisconnectionRequest.DestinationChannel = Channel->RemoteNumber;
PacketData.DisconnectionRequest.SourceChannel = Channel->LocalNumber;
Bluetooth_SendPacket(&PacketData, sizeof(PacketData), NULL);
BT_ACL_DEBUG(1, ">> L2CAP Disconnection Request", NULL);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", PacketData.DisconnectionRequest.DestinationChannel);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", PacketData.DisconnectionRequest.SourceChannel);
}
static inline void Bluetooth_Signal_ConnectionReq(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_ConnectionReq_t ConnectionRequest;
Pipe_Read_Stream_LE(&ConnectionRequest, sizeof(ConnectionRequest));
Pipe_ClearIN();
Pipe_Freeze();
BT_ACL_DEBUG(1, "<< L2CAP Connection Request", NULL);
BT_ACL_DEBUG(2, "-- PSM: 0x%04X", ConnectionRequest.PSM);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConnectionRequest.SourceChannel);
Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(ConnectionRequest.SourceChannel, true);
if (ChannelData == NULL)
{
for (uint8_t i = 0; i < BLUETOOTH_MAX_OPEN_CHANNELS; i++)
{
if (Bluetooth_Connection.Channels[i].State == Channel_Closed)
{
ChannelData = &Bluetooth_Connection.Channels[i];
ChannelData->LocalNumber = (BT_CHANNELNUMBER_BASEOFFSET + i);
break;
}
}
}
if (ChannelData != NULL)
{
ChannelData->RemoteNumber = ConnectionRequest.SourceChannel;
ChannelData->PSM = ConnectionRequest.PSM;
ChannelData->LocalMTU = MAXIMUM_CHANNEL_MTU;
ChannelData->State = Channel_Config_WaitConfig;
}
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_ConnectionResp_t ConnectionResponse;
} ResponsePacket;
ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_CONNECTION_RESPONSE;
ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier;
ResponsePacket.SignalCommandHeader.Length = sizeof(ResponsePacket.ConnectionResponse);
ResponsePacket.ConnectionResponse.Result = (ChannelData == NULL) ? BT_CONNECTION_REFUSED_RESOURCES : BT_CONNECTION_SUCCESSFUL;
ResponsePacket.ConnectionResponse.DestinationChannel = ChannelData->RemoteNumber;
ResponsePacket.ConnectionResponse.SourceChannel = ChannelData->LocalNumber;
ResponsePacket.ConnectionResponse.Status = 0x00;
Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), NULL);
BT_ACL_DEBUG(1, ">> L2CAP Connection Response", NULL);
BT_ACL_DEBUG(2, "-- Result: 0x%02X", ResponsePacket.ConnectionResponse.Result);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ResponsePacket.ConnectionResponse.DestinationChannel);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ResponsePacket.ConnectionResponse.SourceChannel);
}
static inline void Bluetooth_Signal_ConnectionResp(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_ConnectionResp_t ConnectionResponse;
Pipe_Read_Stream_LE(&ConnectionResponse, sizeof(ConnectionResponse));
Pipe_ClearIN();
Pipe_Freeze();
BT_ACL_DEBUG(1, "<< L2CAP Connection Response", NULL);
BT_ACL_DEBUG(2, "-- Result: 0x%02X", ConnectionResponse.Result);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConnectionResponse.SourceChannel);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ConnectionResponse.DestinationChannel);
Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(ConnectionResponse.DestinationChannel, false);
if (ChannelData != NULL)
{
ChannelData->RemoteNumber = ConnectionResponse.SourceChannel;
ChannelData->State = (ConnectionResponse.Result == BT_CONNECTION_SUCCESSFUL) ?
Channel_Config_WaitConfig : Channel_Closed;
}
}
static inline void Bluetooth_Signal_ConfigurationReq(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_ConfigurationReq_t ConfigurationRequest;
uint8_t OptionsLen = (SignalCommandHeader->Length - sizeof(ConfigurationRequest));
uint8_t Options[OptionsLen];
Pipe_Read_Stream_LE(&ConfigurationRequest, sizeof(ConfigurationRequest));
Pipe_Read_Stream_LE(&Options, sizeof(Options));
Pipe_ClearIN();
Pipe_Freeze();
Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(ConfigurationRequest.DestinationChannel, false);
BT_ACL_DEBUG(1, "<< L2CAP Configuration Request", NULL);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ConfigurationRequest.DestinationChannel);
BT_ACL_DEBUG(2, "-- Remote MTU: 0x%04X", ChannelData->RemoteMTU);
BT_ACL_DEBUG(2, "-- Options Len: 0x%04X", OptionsLen);
uint8_t OptionPos = 0;
while (OptionPos < OptionsLen)
{
BT_Config_Option_Header_t* OptionHeader = (BT_Config_Option_Header_t*)&Options[OptionPos];
BT_ACL_DEBUG(2, "-- Option Type: 0x%04X", OptionHeader->Type);
BT_ACL_DEBUG(2, "-- Option Length: 0x%04X", (sizeof(*OptionHeader) + OptionHeader->Length));
if ((OptionHeader->Type == BT_CONFIG_OPTION_MTU) && (ChannelData != NULL))
ChannelData->RemoteMTU = *((uint16_t*)&Options[OptionPos + sizeof(*OptionHeader)]);
OptionPos += (sizeof(*OptionHeader) + OptionHeader->Length);
}
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_ConfigurationResp_t ConfigurationResponse;
} ResponsePacket;
ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_CONFIGURATION_RESPONSE;
ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier;
ResponsePacket.SignalCommandHeader.Length = sizeof(ResponsePacket.ConfigurationResponse);
ResponsePacket.ConfigurationResponse.SourceChannel = ChannelData->RemoteNumber;
ResponsePacket.ConfigurationResponse.Flags = 0x00;
ResponsePacket.ConfigurationResponse.Result = (ChannelData != NULL) ? BT_CONFIGURATION_SUCCESSFUL : BT_CONFIGURATION_REJECTED;
Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), NULL);
if (ChannelData != NULL)
{
switch (ChannelData->State)
{
case Channel_Config_WaitConfig:
ChannelData->State = Channel_Config_WaitSendConfig;
break;
case Channel_Config_WaitReqResp:
ChannelData->State = Channel_Config_WaitResp;
break;
case Channel_Config_WaitReq:
ChannelData->State = Channel_Open;
break;
}
}
BT_ACL_DEBUG(1, ">> L2CAP Configuration Response", NULL);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ResponsePacket.ConfigurationResponse.SourceChannel);
BT_ACL_DEBUG(2, "-- Result: 0x%02X", ResponsePacket.ConfigurationResponse.Result);
}
static inline void Bluetooth_Signal_ConfigurationResp(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_ConfigurationResp_t ConfigurationResponse;
Pipe_Read_Stream_LE(&ConfigurationResponse, sizeof(ConfigurationResponse));
Pipe_ClearIN();
Pipe_Freeze();
BT_ACL_DEBUG(1, "<< L2CAP Configuration Response", NULL);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConfigurationResponse.SourceChannel);
BT_ACL_DEBUG(2, "-- Result: 0x%02X", ConfigurationResponse.Result);
if (ConfigurationResponse.Result == BT_CONFIGURATION_SUCCESSFUL)
{
Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(ConfigurationResponse.SourceChannel, true);
if (ChannelData != NULL)
{
switch (ChannelData->State)
{
case Channel_Config_WaitReqResp:
ChannelData->State = Channel_Config_WaitReq;
break;
case Channel_Config_WaitResp:
ChannelData->State = Channel_Open;
break;
}
}
}
}
static inline void Bluetooth_Signal_DisconnectionReq(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_DisconnectionReq_t DisconnectionRequest;
Pipe_Read_Stream_LE(&DisconnectionRequest, sizeof(DisconnectionRequest));
BT_ACL_DEBUG(1, "<< L2CAP Disconnection Request", NULL);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", DisconnectionRequest.DestinationChannel);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", DisconnectionRequest.SourceChannel);
Pipe_ClearIN();
Pipe_Freeze();
Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(DisconnectionRequest.SourceChannel, true);
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_DisconnectionResp_t DisconnectionResponse;
} ResponsePacket;
ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_DISCONNECTION_RESPONSE;
ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier;
ResponsePacket.SignalCommandHeader.Length = sizeof(ResponsePacket.DisconnectionResponse);
ResponsePacket.DisconnectionResponse.DestinationChannel = ChannelData->RemoteNumber;
ResponsePacket.DisconnectionResponse.SourceChannel = ChannelData->LocalNumber;
Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), NULL);
if (ChannelData != NULL)
ChannelData->State = Channel_Closed;
BT_ACL_DEBUG(1, ">> L2CAP Disconnection Response", NULL);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ResponsePacket.DisconnectionResponse.SourceChannel);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ResponsePacket.DisconnectionResponse.DestinationChannel);
}
static inline void Bluetooth_Signal_DisconnectionResp(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_DisconnectionResp_t DisconnectionResponse;
Pipe_Read_Stream_LE(&DisconnectionResponse, sizeof(DisconnectionResponse));
BT_ACL_DEBUG(1, "<< L2CAP Disconnection Response", NULL);
BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", DisconnectionResponse.DestinationChannel);
BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", DisconnectionResponse.SourceChannel);
Pipe_ClearIN();
Pipe_Freeze();
Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(DisconnectionResponse.SourceChannel, true);
if (ChannelData->State == Channel_WaitDisconnect)
ChannelData->State = Channel_Closed;
}
static inline void Bluetooth_Signal_EchoReq(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_ACL_DEBUG(1, "<< L2CAP Echo Request", NULL);
Pipe_ClearIN();
Pipe_Freeze();
struct
{
BT_Signal_Header_t SignalCommandHeader;
} ResponsePacket;
ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_ECHO_RESPONSE;
ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier;
ResponsePacket.SignalCommandHeader.Length = 0;
Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), NULL);
BT_ACL_DEBUG(1, ">> L2CAP Echo Response", NULL);
}
static inline void Bluetooth_Signal_InformationReq(BT_ACL_Header_t* ACLPacketHeader,
BT_DataPacket_Header_t* DataHeader,
BT_Signal_Header_t* SignalCommandHeader)
{
BT_Signal_InformationReq_t InformationRequest;
Pipe_Read_Stream_LE(&InformationRequest, sizeof(InformationRequest));
BT_ACL_DEBUG(1, "<< L2CAP Information Request", NULL);
BT_ACL_DEBUG(2, "-- Info Type: 0x%04X", InformationRequest.InfoType);
Pipe_ClearIN();
Pipe_Freeze();
struct
{
BT_Signal_Header_t SignalCommandHeader;
BT_Signal_InformationResp_t InformationResponse;
uint8_t Data[4];
} ResponsePacket;
uint8_t DataLen = 0;
switch (InformationRequest.InfoType)
{
case BT_INFOREQ_MTU:
ResponsePacket.InformationResponse.Result = BT_INFORMATION_SUCCESSFUL;
DataLen = 2;
*((uint16_t*)&ResponsePacket.Data) = MAXIMUM_CHANNEL_MTU;
break;
case BT_INFOREQ_EXTENDEDFEATURES:
ResponsePacket.InformationResponse.Result = BT_INFORMATION_SUCCESSFUL;
DataLen = 4;
*((uint32_t*)&ResponsePacket.Data) = 0;
break;
default:
ResponsePacket.InformationResponse.Result = BT_INFORMATION_NOTSUPPORTED;
DataLen = 0;
break;
}
ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_INFORMATION_RESPONSE;
ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier;
ResponsePacket.SignalCommandHeader.Length = sizeof(ResponsePacket.InformationResponse) + DataLen;
Bluetooth_SendPacket(&ResponsePacket, (sizeof(ResponsePacket) - sizeof(ResponsePacket.Data) + DataLen), NULL);
BT_ACL_DEBUG(1, ">> L2CAP Information Response", NULL);
BT_ACL_DEBUG(2, "-- Result: 0x%02X", ResponsePacket.InformationResponse.Result);
}
|
