xref: /btstack/src/bluetooth.h (revision a6e314f1951715b8162d7e414861bec55d244bc9)
1 /*
2  * Copyright (C) 2015 BlueKitchen GmbH
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holders nor the names of
14  *    contributors may be used to endorse or promote products derived
15  *    from this software without specific prior written permission.
16  * 4. Any redistribution, use, or modification is done solely for
17  *    personal benefit and not for any commercial purpose or for
18  *    monetary gain.
19  *
20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24  * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * Please inquire about commercial licensing options at
34  * [email protected]
35  *
36  */
37 
38 /*
39  * bluetooth.h
40  *
41  * Numbers defined or derived from the official Bluetooth specification
42  */
43 
44 #ifndef BLUETOOTH_H
45 #define BLUETOOTH_H
46 
47 #include <stdint.h>
48 
49 /**
50  * @brief hci connection handle type
51  */
52 typedef uint16_t hci_con_handle_t;
53 
54 /**
55  * @brief Length of a bluetooth device address.
56  */
57 #define BD_ADDR_LEN 6
58 
59 /**
60  * @brief Bluetooth address
61  */
62 typedef uint8_t bd_addr_t[BD_ADDR_LEN];
63 
64 /**
65  * Address types
66  * @note: BTstack uses a custom addr type to refer to classic ACL and SCO devices
67  */
68  typedef enum {
69     BD_ADDR_TYPE_LE_PUBLIC = 0,
70     BD_ADDR_TYPE_LE_RANDOM = 1,
71     BD_ADDR_TYPE_LE_PRIVAT_FALLBACK_PUBLIC = 2,
72     BD_ADDR_TYPE_LE_PRIVAT_FALLBACK_RANDOM = 3,
73     BD_ADDR_TYPE_SCO       = 0xfe,
74     BD_ADDR_TYPE_CLASSIC   = 0xff,
75     BD_ADDR_TYPE_UNKNOWN   = 0xfe
76 } bd_addr_type_t;
77 
78 
79 
80 /**
81  * @brief link key
82  */
83 #define LINK_KEY_LEN 16
84 #define LINK_KEY_STR_LEN (LINK_KEY_LEN*2)
85 typedef uint8_t link_key_t[LINK_KEY_LEN];
86 
87 /**
88  * @brief link key type
89  */
90 typedef enum {
91   COMBINATION_KEY = 0,  // standard pairing
92   LOCAL_UNIT_KEY,     // ?
93   REMOTE_UNIT_KEY,    // ?
94   DEBUG_COMBINATION_KEY,  // SSP with debug
95   UNAUTHENTICATED_COMBINATION_KEY_GENERATED_FROM_P192, // SSP Simple Pairing
96   AUTHENTICATED_COMBINATION_KEY_GENERATED_FROM_P192,   // SSP Passkey, Number confirm, OOB
97   CHANGED_COMBINATION_KEY,               // Link key changed using Change Connection Lnk Key
98   UNAUTHENTICATED_COMBINATION_KEY_GENERATED_FROM_P256, // SSP Simpe Pairing
99   AUTHENTICATED_COMBINATION_KEY_GENERATED_FROM_P256,   // SSP Passkey, Number confirm, OOB
100 } link_key_type_t;
101 
102 /**
103  * @brief Inquiry modes
104  */
105 typedef enum {
106   INQUIRY_MODE_STANDARD = 0,
107   INQUIRY_MODE_RSSI,
108   INQUIRY_MODE_RSSI_AND_EIR,
109 } inquiry_mode_t;
110 
111 
112 /**
113  * HCI Transport
114  */
115 
116 /**
117  * packet types - used in BTstack and over the H4 UART interface
118  */
119 #define HCI_COMMAND_DATA_PACKET 0x01
120 #define HCI_ACL_DATA_PACKET     0x02
121 #define HCI_SCO_DATA_PACKET     0x03
122 #define HCI_EVENT_PACKET        0x04
123 
124 // packet header sizes
125 #define HCI_CMD_HEADER_SIZE          3
126 #define HCI_ACL_HEADER_SIZE          4
127 #define HCI_SCO_HEADER_SIZE          3
128 #define HCI_EVENT_HEADER_SIZE        2
129 
130 /**
131  * HCI Layer
132  */
133 
134 //
135 // Error Codes rfom Bluetooth Core Specification
136 //
137 
138 /* ENUM_START: BLUETOOTH_ERROR_CODE */
139 #define ERROR_CODE_SUCCESS                                 0x00
140 #define ERROR_CODE_UNKNOWN_HCI_COMMAND                     0x01
141 #define ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER           0x02
142 #define ERROR_CODE_HARDWARE_FAILURE                        0x03
143 #define ERROR_CODE_PAGE_TIMEOUT                            0x04
144 #define ERROR_CODE_AUTHENTICATION_FAILURE                  0x05
145 #define ERROR_CODE_PIN_OR_KEY_MISSING                      0x06
146 #define ERROR_CODE_MEMORY_CAPACITY_EXCEEDED                0x07
147 #define ERROR_CODE_CONNECTION_TIMEOUT                      0x08
148 #define ERROR_CODE_CONNECTION_LIMIT_EXCEEDED               0x09
149 #define ERROR_CODE_SYNCHRONOUS_CONNECTION_LIMIT_TO_A_DEVICE_EXCEEDED  0x0A
150 #define ERROR_CODE_ACL_CONNECTION_ALREADY_EXISTS           0x0B
151 #define ERROR_CODE_COMMAND_DISALLOWED                      0x0C
152 #define ERROR_CODE_CONNECTION_REJECTED_DUE_TO_LIMITED_RESOURCES 0x0D
153 #define ERROR_CODE_CONNECTION_REJECTED_DUE_TO_SECURITY_REASONS  0x0E
154 #define ERROR_CODE_CONNECTION_REJECTED_DUE_TO_UNACCEPTABLE_BD_ADDR 0x0F
155 #define ERROR_CODE_CONNECTION_ACCEPT_TIMEOUT_EXCEEDED      0x10
156 #define ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE  0x11
157 #define ERROR_CODE_INVALID_HCI_COMMAND_PARAMETERS          0x12
158 #define ERROR_CODE_REMOTE_USER_TERMINATED_CONNECTION       0x13
159 #define ERROR_CODE_REMOTE_DEVICE_TERMINATED_CONNECTION_DUE_TO_LOW_RESOURCES 0x14
160 #define ERROR_CODE_REMOTE_DEVICE_TERMINATED_CONNECTION_DUE_TO_POWER_OFF     0x15
161 #define ERROR_CODE_CONNECTION_TERMINATED_BY_LOCAL_HOST     0x16
162 #define ERROR_CODE_REPEATED_ATTEMPTS                       0x17
163 #define ERROR_CODE_PAIRING_NOT_ALLOWED                     0x18
164 #define ERROR_CODE_UNKNOWN_LMP_PDU                         0x19
165 #define ERROR_CODE_UNSUPPORTED_REMOTE_FEATURE_UNSUPPORTED_LMP_FEATURE 0x1A
166 #define ERROR_CODE_SCO_OFFSET_REJECTED                     0x1B
167 #define ERROR_CODE_SCO_INTERVAL_REJECTED                   0x1C
168 #define ERROR_CODE_SCO_AIR_MODE_REJECTED                   0x1D
169 #define ERROR_CODE_INVALID_LMP_PARAMETERS_INVALID_LL_PARAMETERS 0x1E
170 #define ERROR_CODE_UNSPECIFIED_ERROR                       0x1F
171 #define ERROR_CODE_UNSUPPORTED_LMP_PARAMETER_VALUE_UNSUPPORTED_LL_PARAMETER_VALUE 0x20
172 #define ERROR_CODE_ROLE_CHANGE_NOT_ALLOWED                 0x21
173 #define ERROR_CODE_LMP_RESPONSE_TIMEOUT_LL_RESPONSE_TIMEOUT 0x22
174 #define ERROR_CODE_LMP_ERROR_TRANSACTION_COLLISION         0x23
175 #define ERROR_CODE_LMP_PDU_NOT_ALLOWED                     0x24
176 #define ERROR_CODE_ENCRYPTION_MODE_NOT_ACCEPTABLE          0x25
177 #define ERROR_CODE_LINK_KEY_CANNOT_BE_CHANGED              0x26
178 #define ERROR_CODE_REQUESTED_QOS_NOT_SUPPORTED             0x27
179 #define ERROR_CODE_INSTANT_PASSED                          0x28
180 #define ERROR_CODE_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED     0x29
181 #define ERROR_CODE_DIFFERENT_TRANSACTION_COLLISION         0x2A
182 #define ERROR_CODE_RESERVED                                0x2B
183 #define ERROR_CODE_QOS_UNACCEPTABLE_PARAMETER              0x2C
184 #define ERROR_CODE_QOS_REJECTED                            0x2D
185 #define ERROR_CODE_CHANNEL_CLASSIFICATION_NOT_SUPPORTED    0x2E
186 #define ERROR_CODE_INSUFFICIENT_SECURITY                   0x2F
187 #define ERROR_CODE_PARAMETER_OUT_OF_MANDATORY_RANGE        0x30
188 // #define ERROR_CODE_RESERVED
189 #define ERROR_CODE_ROLE_SWITCH_PENDING                     0x32
190 // #define ERROR_CODE_RESERVED
191 #define ERROR_CODE_RESERVED_SLOT_VIOLATION                 0x34
192 #define ERROR_CODE_ROLE_SWITCH_FAILED                      0x35
193 #define ERROR_CODE_EXTENDED_INQUIRY_RESPONSE_TOO_LARGE     0x36
194 #define ERROR_CODE_SECURE_SIMPLE_PAIRING_NOT_SUPPORTED_BY_HOST 0x37
195 #define ERROR_CODE_HOST_BUSY_PAIRING                       0x38
196 #define ERROR_CODE_CONNECTION_REJECTED_DUE_TO_NO_SUITABLE_CHANNEL_FOUND 0x39
197 #define ERROR_CODE_CONTROLLER_BUSY                         0x3A
198 #define ERROR_CODE_UNACCEPTABLE_CONNECTION_PARAMETERS      0x3B
199 #define ERROR_CODE_DIRECTED_ADVERTISING_TIMEOUT            0x3C
200 #define ERROR_CODE_CONNECTION_TERMINATED_DUE_TO_MIC_FAILURE 0x3D
201 #define ERROR_CODE_CONNECTION_FAILED_TO_BE_ESTABLISHED     0x3E
202 #define ERROR_CODE_MAC_CONNECTION_FAILED                   0x3F
203 #define ERROR_CODE_COARSE_CLOCK_ADJUSTMENT_REJECTED_BUT_WILL_TRY_TO_ADJUST_USING_CLOCK_DRAGGING 0x40
204 
205 // BTstack defined ERRORS, mapped into BLuetooth status code range
206 
207 #define BTSTACK_CONNECTION_TO_BTDAEMON_FAILED              0x50
208 #define BTSTACK_ACTIVATION_FAILED_SYSTEM_BLUETOOTH         0x51
209 #define BTSTACK_ACTIVATION_POWERON_FAILED                  0x52
210 #define BTSTACK_ACTIVATION_FAILED_UNKNOWN                  0x53
211 #define BTSTACK_NOT_ACTIVATED                              0x54
212 #define BTSTACK_BUSY                                       0x55
213 #define BTSTACK_MEMORY_ALLOC_FAILED                        0x56
214 #define BTSTACK_ACL_BUFFERS_FULL                           0x57
215 
216 // l2cap errors - enumeration by the command that created them
217 #define L2CAP_COMMAND_REJECT_REASON_COMMAND_NOT_UNDERSTOOD 0x60
218 #define L2CAP_COMMAND_REJECT_REASON_SIGNALING_MTU_EXCEEDED 0x61
219 #define L2CAP_COMMAND_REJECT_REASON_INVALID_CID_IN_REQUEST 0x62
220 
221 #define L2CAP_CONNECTION_RESPONSE_RESULT_SUCCESSFUL        0x63
222 #define L2CAP_CONNECTION_RESPONSE_RESULT_PENDING           0x64
223 #define L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_PSM       0x65
224 #define L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_SECURITY  0x66
225 #define L2CAP_CONNECTION_RESPONSE_RESULT_REFUSED_RESOURCES 0x67
226 #define L2CAP_CONNECTION_RESPONSE_RESULT_ERTM_NOT_SUPPORTED 0x68
227 
228 // should be L2CAP_CONNECTION_RTX_TIMEOUT
229 #define L2CAP_CONNECTION_RESPONSE_RESULT_RTX_TIMEOUT       0x69
230 #define L2CAP_CONNECTION_BASEBAND_DISCONNECT               0x6A
231 #define L2CAP_SERVICE_ALREADY_REGISTERED                   0x6B
232 #define L2CAP_DATA_LEN_EXCEEDS_REMOTE_MTU                  0x6C
233 #define L2CAP_SERVICE_DOES_NOT_EXIST                       0x6D
234 #define L2CAP_LOCAL_CID_DOES_NOT_EXIST                     0x6E
235 
236 #define RFCOMM_MULTIPLEXER_STOPPED                         0x70
237 #define RFCOMM_CHANNEL_ALREADY_REGISTERED                  0x71
238 #define RFCOMM_NO_OUTGOING_CREDITS                         0x72
239 #define RFCOMM_AGGREGATE_FLOW_OFF                          0x73
240 #define RFCOMM_DATA_LEN_EXCEEDS_MTU                        0x74
241 
242 #define SDP_HANDLE_ALREADY_REGISTERED                      0x80
243 #define SDP_QUERY_INCOMPLETE                               0x81
244 #define SDP_SERVICE_NOT_FOUND                              0x82
245 #define SDP_HANDLE_INVALID                                 0x83
246 #define SDP_QUERY_BUSY                                     0x84
247 
248 #define ATT_HANDLE_VALUE_INDICATION_IN_PROGRESS            0x90
249 #define ATT_HANDLE_VALUE_INDICATION_TIMEOUT                0x91
250 #define ATT_HANDLE_VALUE_INDICATION_DISCONNECT             0x92
251 
252 #define GATT_CLIENT_NOT_CONNECTED                          0x93
253 #define GATT_CLIENT_BUSY                                   0x94
254 #define GATT_CLIENT_IN_WRONG_STATE                         0x95
255 #define GATT_CLIENT_DIFFERENT_CONTEXT_FOR_ADDRESS_ALREADY_EXISTS 0x96
256 #define GATT_CLIENT_VALUE_TOO_LONG                         0x97
257 #define GATT_CLIENT_CHARACTERISTIC_NOTIFICATION_NOT_SUPPORTED 0x98
258 #define GATT_CLIENT_CHARACTERISTIC_INDICATION_NOT_SUPPORTED   0x99
259 
260 #define BNEP_SERVICE_ALREADY_REGISTERED                    0xA0
261 #define BNEP_CHANNEL_NOT_CONNECTED                         0xA1
262 #define BNEP_DATA_LEN_EXCEEDS_MTU                          0xA2
263 
264 // OBEX ERRORS
265 #define OBEX_UNKNOWN_ERROR                                 0xB0
266 #define OBEX_CONNECT_FAILED                                0xB1
267 #define OBEX_DISCONNECTED                                  0xB2
268 #define OBEX_NOT_FOUND                                     0xB3
269 #define OBEX_NOT_ACCEPTABLE                                0xB4
270 
271 #define AVDTP_SEID_DOES_NOT_EXIST                          0xC0
272 #define AVDTP_CONNECTION_DOES_NOT_EXIST                    0xC1
273 #define AVDTP_CONNECTION_IN_WRONG_STATE                    0xC2
274 #define AVDTP_STREAM_ENDPOINT_IN_WRONG_STATE               0xC3
275 #define AVDTP_STREAM_ENDPOINT_DOES_NOT_EXIST               0xC4
276 #define AVDTP_MEDIA_CONNECTION_DOES_NOT_EXIST              0xC5
277 
278 #define MESH_ERROR_APPKEY_INDEX_INVALID                    0xD0
279 /* ENUM_END */
280 
281 
282 /* ENUM_START: AVRCP_BROWSING_ERROR_CODE */
283 #define AVRCP_BROWSING_ERROR_CODE_INVALID_COMMAND                     0x00  // Sent if TG received a PDU that it did not understand. Valid for All.
284 #define AVRCP_BROWSING_ERROR_CODE_INVALID_PARAMETER                   0x01  // Sent if the TG received a PDU with a parameter ID that it did not understand. Sent if there is only one parameter ID in the PDU. Valid for All.
285 #define AVRCP_BROWSING_ERROR_CODE_SPECIFIED_PARAMETER_NOT_FOUND       0x02  // Sent if the parameter ID is understood, but content is wrong or corrupted. Valid for All.
286 #define AVRCP_BROWSING_ERROR_CODE_INTERNAL_ERROR                      0x03  // Sent if there are error conditions not covered by a more specific error code. Valid for All.
287 #define AVRCP_BROWSING_ERROR_CODE_SUCCESS                             0x04  // This is the status that should be returned if the operation was successful. Valid for All except where the response CType is AV/C REJECTED.
288 #define AVRCP_BROWSING_ERROR_CODE_UID_CHANGED                         0x05  // The UIDs on the device have changed. Valid for All.
289 #define AVRCP_BROWSING_ERROR_CODE_RESERVED_06                         0x06  // Valid for All.
290 #define AVRCP_BROWSING_ERROR_CODE_INVALID_DIRECTION                   0x07  // The Direction parameter is invalid. Valid for Change Path.
291 #define AVRCP_BROWSING_ERROR_CODE_NOT_A_DIRECTORY                     0x08  // The UID provided does not refer to a folder item. Valid for Change Path.
292 #define AVRCP_BROWSING_ERROR_CODE_DOES_NOT_EXIST                      0x09  // The UID provided does not refer to any currently valid. Valid for Change Path, PlayItem, AddToNowPlaying, GetItemAttributes.
293 #define AVRCP_BROWSING_ERROR_CODE_INVALID_SCOPE                       0x0a  // The scope parameter is invalid. Valid for GetFolderItems, PlayItem, AddToNowPlayer, GetItemAttributes,.
294 #define AVRCP_BROWSING_ERROR_CODE_RANGE_OUT_OF_BOUNDS                 0x0b  // The start of range provided is not valid. Valid for GetFolderItems.
295 #define AVRCP_BROWSING_ERROR_CODE_UID_IS_A_DIRECTORY                  0x0c  // The UID provided refers to a directory, which cannot be handled by this media player. Valid for PlayItem, AddToNowPlaying.
296 #define AVRCP_BROWSING_ERROR_CODE_MEDIA_IN_USES                       0x0d  // The media is not able to be used for this operation at this time. Valid for PlayItem, AddToNowPlaying.
297 #define AVRCP_BROWSING_ERROR_CODE_NOW_PLAYING_LIST_FULL               0x0e  // No more items can be added to the Now Playing List. Valid for AddToNowPlaying.
298 #define AVRCP_BROWSING_ERROR_CODE_SEARCH_NOT_SUPPORTED                0x0f  // The Browsed Media Player does not support search. Valid for Search.
299 #define AVRCP_BROWSING_ERROR_CODE_SEARCH_IN_PROGRESS                  0x10  // A search operation is already in progress. Valid for Search.
300 #define AVRCP_BROWSING_ERROR_CODE_INVALID_PLAYER_ID                   0x11  // The specified Player Id does not refer to a valid player. Valid for SetAddressedPlayer, SetBrowsedPlayer.
301 #define AVRCP_BROWSING_ERROR_CODE_PLAYER_NOT_BROWSABLE                0x12  // The Player Id supplied refers to a Media Player which does not support browsing. Valid for SetBrowsedPlayer.
302 #define AVRCP_BROWSING_ERROR_CODE_PLAYER_NOT_ADDRESSED                0x13  // The Player Id supplied refers to a player which is not currently addressed, and the command is not able to be performed if the player is not set as addressed. Valid for Search SetBrowsedPlayer.
303 #define AVRCP_BROWSING_ERROR_CODE_NO_VALID_SEARCH_RESULTS             0x14  // The Search result list does not contain valid entries, e.g. after being invalidated due to change of browsed player. Valid for GetFolderItems.
304 #define AVRCP_BROWSING_ERROR_CODE_NO_AVAILABLE_PLAYERS                0x15  // Valid for All.
305 #define AVRCP_BROWSING_ERROR_CODE_ADDRESSED_PLAYER_CHANGED            0x16  // Valid for Register Notification.
306 // 0x17-0xff Reserved
307 /* ENUM_END */
308 
309 // HCI roles
310 #define HCI_ROLE_MASTER 0
311 #define HCI_ROLE_SLAVE  1
312 
313 // packet sizes (max payload)
314 #define HCI_ACL_DM1_SIZE            17
315 #define HCI_ACL_DH1_SIZE            27
316 #define HCI_ACL_2DH1_SIZE           54
317 #define HCI_ACL_3DH1_SIZE           83
318 #define HCI_ACL_DM3_SIZE           121
319 #define HCI_ACL_DH3_SIZE           183
320 #define HCI_ACL_DM5_SIZE           224
321 #define HCI_ACL_DH5_SIZE           339
322 #define HCI_ACL_2DH3_SIZE          367
323 #define HCI_ACL_3DH3_SIZE          552
324 #define HCI_ACL_2DH5_SIZE          679
325 #define HCI_ACL_3DH5_SIZE         1021
326 
327 #define HCI_EVENT_PAYLOAD_SIZE     255
328 #define HCI_CMD_PAYLOAD_SIZE       255
329 
330 #define LE_ADVERTISING_DATA_SIZE    31
331 
332 // Link Policy Settings
333 #define LM_LINK_POLICY_DISABLE_ALL_LM_MODES  0
334 #define LM_LINK_POLICY_ENABLE_ROLE_SWITCH    1
335 #define LM_LINK_POLICY_ENABLE_HOLD_MODE      2
336 #define LM_LINK_POLICY_ENABLE_SNIFF_MODE     3
337 
338 // ACL Connection Modes
339 #define ACL_CONNECTION_MODE_ACTIVE 0
340 #define ACL_CONNECTION_MODE_HOLD   1
341 #define ACL_CONNECTION_MODE_SNIFF  2
342 
343 /**
344  * Default INQ Mode
345  */
346 #define GAP_IAC_GENERAL_INQUIRY 0x9E8B33L // General/Unlimited Inquiry Access Code (GIAC)
347 #define GAP_IAC_LIMITED_INQUIRY 0x9E8B00L // Limited Dedicated Inquiry Access Code (LIAC)
348 
349 /**
350  * SSP IO Capabilities
351  */
352 #define SSP_IO_CAPABILITY_DISPLAY_ONLY   0
353 #define SSP_IO_CAPABILITY_DISPLAY_YES_NO 1
354 #define SSP_IO_CAPABILITY_KEYBOARD_ONLY  2
355 #define SSP_IO_CAPABILITY_NO_INPUT_NO_OUTPUT 3
356 #define SSP_IO_CAPABILITY_UNKNOWN 0xff
357 
358 
359 /**
360  * SSP Authentication Requirements, see IO Capability Request Reply Commmand
361  */
362 
363 // Numeric comparison with automatic accept allowed.
364 #define SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_NO_BONDING 0x00
365 
366 // Use IO Capabilities to deter- mine authentication procedure
367 #define SSP_IO_AUTHREQ_MITM_PROTECTION_REQUIRED_NO_BONDING 0x01
368 
369 // Numeric compar- ison with automatic accept allowed.
370 #define SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_DEDICATED_BONDING 0x02
371 
372 // Use IO Capabilities to determine authentication procedure
373 #define SSP_IO_AUTHREQ_MITM_PROTECTION_REQUIRED_DEDICATED_BONDING 0x03
374 
375 // Numeric Compari- son with automatic accept allowed.
376 #define SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_GENERAL_BONDING 0x04
377 
378 // Use IO capabilities to determine authentication procedure.
379 #define SSP_IO_AUTHREQ_MITM_PROTECTION_REQUIRED_GENERAL_BONDING 0x05
380 
381 
382 // OGFs
383 #define OGF_LINK_CONTROL          0x01
384 #define OGF_LINK_POLICY           0x02
385 #define OGF_CONTROLLER_BASEBAND   0x03
386 #define OGF_INFORMATIONAL_PARAMETERS 0x04
387 #define OGF_STATUS_PARAMETERS     0x05
388 #define OGF_TESTING               0x06
389 #define OGF_LE_CONTROLLER 0x08
390 #define OGF_VENDOR  0x3f
391 
392 
393 
394 
395 /**
396  * L2CAP Layer
397  */
398 
399 #define L2CAP_HEADER_SIZE 4
400 
401 // minimum signaling MTU
402 #define L2CAP_MINIMAL_MTU 48
403 #define L2CAP_DEFAULT_MTU 672
404 
405 // Minimum/default MTU
406 #define L2CAP_LE_DEFAULT_MTU  23
407 
408 // L2CAP Fixed Channel IDs
409 #define L2CAP_CID_SIGNALING                        0x0001
410 #define L2CAP_CID_CONNECTIONLESS_CHANNEL           0x0002
411 #define L2CAP_CID_ATTRIBUTE_PROTOCOL               0x0004
412 #define L2CAP_CID_SIGNALING_LE                     0x0005
413 #define L2CAP_CID_SECURITY_MANAGER_PROTOCOL        0x0006
414 
415 /**
416  * SDP Protocol
417  */
418 
419 // Device Vendor ID Sources
420 #define DEVICE_ID_VENDOR_ID_SOURCE_BLUETOOTH 0x0001
421 #define DEVICE_ID_VENDOR_ID_SOURCE_USB       0x0002
422 
423 // OBEX
424 #define SDP_vCard_2_1       0x01
425 #define SDP_vCard_3_0       0x02
426 #define SDP_vCal_1_0        0x03
427 #define SDP_iCal_2_0        0x04
428 #define SDP_vNote           0x05
429 #define SDP_vMessage        0x06
430 #define SDP_OBEXFileTypeAny 0xFF
431 
432 /**
433  * RFCOMM Protocol
434  */
435 
436 // Control field values      bit no.       1 2 3 4 PF 6 7 8
437 #define BT_RFCOMM_SABM       0x3F       // 1 1 1 1  1 1 0 0
438 #define BT_RFCOMM_UA         0x73       // 1 1 0 0  1 1 1 0
439 #define BT_RFCOMM_DM         0x0F       // 1 1 1 1  0 0 0 0
440 #define BT_RFCOMM_DM_PF      0x1F       // 1 1 1 1  1 0 0 0
441 #define BT_RFCOMM_DISC       0x53       // 1 1 0 0  1 0 1 0
442 #define BT_RFCOMM_UIH        0xEF       // 1 1 1 1  0 1 1 1
443 #define BT_RFCOMM_UIH_PF     0xFF       // 1 1 1 1  0 1 1 1
444 
445 // Multiplexer message types
446 #define BT_RFCOMM_CLD_CMD    0xC3
447 #define BT_RFCOMM_FCON_CMD   0xA3
448 #define BT_RFCOMM_FCON_RSP   0xA1
449 #define BT_RFCOMM_FCOFF_CMD  0x63
450 #define BT_RFCOMM_FCOFF_RSP  0x61
451 #define BT_RFCOMM_MSC_CMD    0xE3
452 #define BT_RFCOMM_MSC_RSP    0xE1
453 #define BT_RFCOMM_NSC_RSP    0x11
454 #define BT_RFCOMM_PN_CMD     0x83
455 #define BT_RFCOMM_PN_RSP     0x81
456 #define BT_RFCOMM_RLS_CMD    0x53
457 #define BT_RFCOMM_RLS_RSP    0x51
458 #define BT_RFCOMM_RPN_CMD    0x93
459 #define BT_RFCOMM_RPN_RSP    0x91
460 #define BT_RFCOMM_TEST_CMD   0x23
461 #define BT_RFCOMM_TEST_RSP   0x21
462 
463 // Line Status
464 #define LINE_STATUS_NO_ERROR       0x00
465 #define LINE_STATUS_OVERRUN_ERROR  0x03
466 #define LINE_STATUS_PARITY_ERORR   0x05
467 #define LINE_STATUS_FRAMING_ERROR  0x09
468 
469 // Modem Status Flags
470 #define MODEM_STATUS_FC   0x02
471 #define MODEM_STATUS_RTC  0x04
472 #define MODEM_STATUS_RTR  0x08
473 #define MODEM_STATUS_IC   0x40
474 #define MODEM_STATUS_DV   0x80
475 
476 typedef enum rpn_baud {
477     RPN_BAUD_2400 = 0,
478     RPN_BAUD_4800,
479     RPN_BAUD_7200,
480     RPN_BAUD_9600,
481     RPN_BAUD_19200,
482     RPN_BAUD_38400,
483     RPN_BAUD_57600,
484     RPN_BAUD_115200,
485     RPN_BAUD_230400
486 } rpn_baud_t;
487 
488 typedef enum rpn_data_bits {
489     RPN_DATA_BITS_5 = 0,
490     RPN_DATA_BITS_6 = 0,
491     RPN_DATA_BITS_7 = 0,
492     RPN_DATA_BITS_8 = 0
493 } rpn_data_bits_t;
494 
495 typedef enum rpn_stop_bits {
496     RPN_STOP_BITS_1_0 = 0,
497     RPN_STOP_BITS_1_5
498 } rpn_stop_bits_t;
499 
500 typedef enum rpn_parity {
501     RPN_PARITY_NONE  = 0,
502     RPN_PARITY_ODD   = 1,
503     RPN_PARITY_EVEN  = 3,
504     RPN_PARITY_MARK  = 5,
505     RPN_PARITY_SPACE = 7,
506 } rpn_parity_t;
507 
508 typedef enum rpn_flow_control {
509     RPN_FLOW_CONTROL_XONXOFF_ON_INPUT  = 1 << 0,
510     RPN_FLOW_CONTROL_XONXOFF_ON_OUTPUT = 1 << 1,
511     RPN_FLOW_CONTROL_RTR_ON_INPUT  = 1 << 2,
512     RPN_FLOW_CONTROL_RTR_ON_OUTPUT = 1 << 3,
513     RPN_FLOW_CONTROL_RTC_ON_INPUT  = 1 << 4,
514     RPN_FLOW_CONTROL_RTC_ON_OUTPUT = 1 << 5,
515 } rpn_flow_control_t;
516 
517 #define RPN_PARAM_MASK_0_BAUD             0x01
518 #define RPN_PARAM_MASK_0_DATA_BITS        0x02
519 #define RPN_PARAM_MASK_0_STOP_BITS        0x04
520 #define RPN_PARAM_MASK_0_PARITY           0x08
521 #define RPN_PARAM_MASK_0_PARITY_TYPE      0x10
522 #define RPN_PARAM_MASK_0_XON_CHAR         0x20
523 #define RPN_PARAM_MASK_0_XOFF_CHAR        0x40
524 #define RPN_PARAM_MASK_0_RESERVED         0x80
525 
526 // @note: values are identical to rpn_flow_control_t
527 #define RPN_PARAM_MASK_1_XONOFF_ON_INPUT  0x01
528 #define RPN_PARAM_MASK_1_XONOFF_ON_OUTPUT 0x02
529 #define RPN_PARAM_MASK_1_RTR_ON_INPUT     0x04
530 #define RPN_PARAM_MASK_1_RTR_ON_OUTPUT    0x08
531 #define RPN_PARAM_MASK_1_RTC_ON_INPUT     0x10
532 #define RPN_PARAM_MASK_1_RTC_ON_OUTPUT    0x20
533 #define RPN_PARAM_MASK_1_RESERVED_0       0x40
534 #define RPN_PARAM_MASK_1_RESERVED_1       0x80
535 
536 /**
537  * BNEP Protocol
538  */
539 
540 #ifndef ETHER_ADDR_LEN
541 #define ETHER_ADDR_LEN 6
542 #endif
543 
544 #ifndef ETHERTYPE_VLAN
545 #define ETHERTYPE_VLAN                                  0x8100 /* IEEE 802.1Q VLAN tag */
546 #endif
547 
548 #define BNEP_MTU_MIN                                    1691
549 
550 #define BNEP_EXT_FLAG                                   0x80
551 #define BNEP_TYPE_MASK                                  0x7F
552 #define BNEP_TYPE(header)                               ((header) & BNEP_TYPE_MASK)
553 #define BNEP_HEADER_HAS_EXT(x)                          (((x) & BNEP_EXT_FLAG) == BNEP_EXT_FLAG)
554 
555 /* BNEP packet types */
556 #define BNEP_PKT_TYPE_GENERAL_ETHERNET                  0x00
557 #define BNEP_PKT_TYPE_CONTROL                           0x01
558 #define BNEP_PKT_TYPE_COMPRESSED_ETHERNET               0x02
559 #define BNEP_PKT_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY   0x03
560 #define BNEP_PKT_TYPE_COMPRESSED_ETHERNET_DEST_ONLY     0x04
561 
562 /* BNEP control types */
563 #define BNEP_CONTROL_TYPE_COMMAND_NOT_UNDERSTOOD        0x00
564 #define BNEP_CONTROL_TYPE_SETUP_CONNECTION_REQUEST      0x01
565 #define BNEP_CONTROL_TYPE_SETUP_CONNECTION_RESPONSE     0x02
566 #define BNEP_CONTROL_TYPE_FILTER_NET_TYPE_SET           0x03
567 #define BNEP_CONTROL_TYPE_FILTER_NET_TYPE_RESPONSE      0x04
568 #define BNEP_CONTROL_TYPE_FILTER_MULTI_ADDR_SET         0x05
569 #define BNEP_CONTROL_TYPE_FILTER_MULTI_ADDR_RESPONSE    0x06
570 
571 /* BNEP extension header types */
572 #define BNEP_EXT_HEADER_TYPE_EXTENSION_CONTROL          0x00
573 
574 /* BNEP setup response codes */
575 #define BNEP_RESP_SETUP_SUCCESS                         0x0000
576 #define BNEP_RESP_SETUP_INVALID_DEST_UUID               0x0001
577 #define BNEP_RESP_SETUP_INVALID_SOURCE_UUID             0x0002
578 #define BNEP_RESP_SETUP_INVALID_SERVICE_UUID_SIZE       0x0003
579 #define BNEP_RESP_SETUP_CONNECTION_NOT_ALLOWED          0x0004
580 
581 /* BNEP filter response codes */
582 #define BNEP_RESP_FILTER_SUCCESS                        0x0000
583 #define BNEP_RESP_FILTER_UNSUPPORTED_REQUEST            0x0001
584 #define BNEP_RESP_FILTER_ERR_INVALID_RANGE              0x0002
585 #define BNEP_RESP_FILTER_ERR_TOO_MANY_FILTERS           0x0003
586 #define BNEP_RESP_FILTER_ERR_SECURITY                   0x0004
587 
588 /**
589  * PAN Profile
590  */
591 
592 typedef enum {
593     BNEP_SECURITY_NONE = 0x0000,
594     BNEP_SECURITY_SERVICE_LEVEL_ENFORCED,
595     BNEP_SECURITY_802_1X
596 } security_description_t;
597 
598 typedef enum {
599     PAN_NET_ACCESS_TYPE_PSTN = 0x0000,
600     PAN_NET_ACCESS_TYPE_ISDN,
601     PAN_NET_ACCESS_TYPE_DSL,
602     PAN_NET_ACCESS_TYPE_CABLE_MODEM,
603     PAN_NET_ACCESS_TYPE_10MB_ETHERNET,
604     PAN_NET_ACCESS_TYPE_100MB_ETHERNET,
605     PAN_NET_ACCESS_TYPE_4MB_TOKEN_RING,
606     PAN_NET_ACCESS_TYPE_16MB_TOKEN_RING,
607     PAN_NET_ACCESS_TYPE_100MB_TOKEN_RING,
608     PAN_NET_ACCESS_TYPE_FDDI,
609     PAN_NET_ACCESS_TYPE_GSM,
610     PAN_NET_ACCESS_TYPE_CDMA,
611     PAN_NET_ACCESS_TYPE_GPRS,
612     PAN_NET_ACCESS_TYPE_3G,
613     PAN_NET_ACCESS_TYPE_CELULAR,
614     PAN_NET_ACCESS_TYPE_OTHER = 0xFFFE,
615     PAN_NET_ACCESS_TYPE_NONE
616 } net_access_type_t;
617 
618 /**
619  * ATT
620  */
621 
622 // Minimum/default MTU
623 #define ATT_DEFAULT_MTU               23
624 
625 // MARK: Attribute PDU Opcodes
626 #define ATT_ERROR_RESPONSE              0x01
627 
628 #define ATT_EXCHANGE_MTU_REQUEST        0x02
629 #define ATT_EXCHANGE_MTU_RESPONSE       0x03
630 
631 #define ATT_FIND_INFORMATION_REQUEST    0x04
632 #define ATT_FIND_INFORMATION_REPLY      0x05
633 #define ATT_FIND_BY_TYPE_VALUE_REQUEST  0x06
634 #define ATT_FIND_BY_TYPE_VALUE_RESPONSE 0x07
635 
636 #define ATT_READ_BY_TYPE_REQUEST        0x08
637 #define ATT_READ_BY_TYPE_RESPONSE       0x09
638 #define ATT_READ_REQUEST                0x0a
639 #define ATT_READ_RESPONSE               0x0b
640 #define ATT_READ_BLOB_REQUEST           0x0c
641 #define ATT_READ_BLOB_RESPONSE          0x0d
642 #define ATT_READ_MULTIPLE_REQUEST       0x0e
643 #define ATT_READ_MULTIPLE_RESPONSE      0x0f
644 #define ATT_READ_BY_GROUP_TYPE_REQUEST  0x10
645 #define ATT_READ_BY_GROUP_TYPE_RESPONSE 0x11
646 
647 #define ATT_WRITE_REQUEST               0x12
648 #define ATT_WRITE_RESPONSE              0x13
649 
650 #define ATT_PREPARE_WRITE_REQUEST       0x16
651 #define ATT_PREPARE_WRITE_RESPONSE      0x17
652 #define ATT_EXECUTE_WRITE_REQUEST       0x18
653 #define ATT_EXECUTE_WRITE_RESPONSE      0x19
654 
655 #define ATT_HANDLE_VALUE_NOTIFICATION   0x1b
656 #define ATT_HANDLE_VALUE_INDICATION     0x1d
657 #define ATT_HANDLE_VALUE_CONFIRMATION   0x1e
658 
659 
660 #define ATT_WRITE_COMMAND                0x52
661 #define ATT_SIGNED_WRITE_COMMAND         0xD2
662 
663 // MARK: ATT Error Codes
664 #define ATT_ERROR_SUCCESS                          0x00
665 #define ATT_ERROR_INVALID_HANDLE                   0x01
666 #define ATT_ERROR_READ_NOT_PERMITTED               0x02
667 #define ATT_ERROR_WRITE_NOT_PERMITTED              0x03
668 #define ATT_ERROR_INVALID_PDU                      0x04
669 #define ATT_ERROR_INSUFFICIENT_AUTHENTICATION      0x05
670 #define ATT_ERROR_REQUEST_NOT_SUPPORTED            0x06
671 #define ATT_ERROR_INVALID_OFFSET                   0x07
672 #define ATT_ERROR_INSUFFICIENT_AUTHORIZATION       0x08
673 #define ATT_ERROR_PREPARE_QUEUE_FULL               0x09
674 #define ATT_ERROR_ATTRIBUTE_NOT_FOUND              0x0a
675 #define ATT_ERROR_ATTRIBUTE_NOT_LONG               0x0b
676 #define ATT_ERROR_INSUFFICIENT_ENCRYPTION_KEY_SIZE 0x0c
677 #define ATT_ERROR_INVALID_ATTRIBUTE_VALUE_LENGTH   0x0d
678 #define ATT_ERROR_UNLIKELY_ERROR                   0x0e
679 #define ATT_ERROR_INSUFFICIENT_ENCRYPTION          0x0f
680 #define ATT_ERROR_UNSUPPORTED_GROUP_TYPE           0x10
681 #define ATT_ERROR_INSUFFICIENT_RESOURCES           0x11
682 
683 // custom BTstack error codes
684 #define ATT_ERROR_HCI_DISCONNECT_RECEIVED          0x1f
685 
686 // custom BTstack ATT error codes
687 #define ATT_ERROR_DATA_MISMATCH                    0x7e
688 #define ATT_ERROR_TIMEOUT                          0x7F
689 #define ATT_ERROR_WRITE_RESPONSE_PENDING           0x100
690 
691 // MARK: ATT Error Codes used internally by BTstack
692 #define ATT_ERROR_BONDING_INFORMATION_MISSING      0x70
693 
694 // MARK: ATT Error Codes from Cycling Power Service spec
695 #define CYCLING_POWER_ERROR_CODE_INAPPROPRIATE_CONNECTION_PARAMETERS                          0x80
696 #define CYCLING_POWER_ERROR_CODE_PROCEDURE_ALREADY_IN_PROGRESS                                0xFE
697 #define CYCLING_POWER_ERROR_CODE_CCC_DESCRIPTOR_IMPROPERLY_CONFIGURED                         0xFD
698 
699 // MARK: ATT Error Codes from Cycling Speed and Cadence Service spec
700 #define CYCLING_SPEED_AND_CADENCE_ERROR_CODE_PROCEDURE_ALREADY_IN_PROGRESS                    0x80
701 #define CYCLING_SPEED_AND_CADENCE_ERROR_CODE_CCC_DESCRIPTOR_IMPROPERLY_CONFIGURED             0x81
702 
703 
704 // MARK: Attribute Property Flags
705 #define ATT_PROPERTY_BROADCAST           0x01
706 #define ATT_PROPERTY_READ                0x02
707 #define ATT_PROPERTY_WRITE_WITHOUT_RESPONSE 0x04
708 #define ATT_PROPERTY_WRITE               0x08
709 #define ATT_PROPERTY_NOTIFY              0x10
710 #define ATT_PROPERTY_INDICATE            0x20
711 #define ATT_PROPERTY_AUTHENTICATED_SIGNED_WRITE 0x40
712 #define ATT_PROPERTY_EXTENDED_PROPERTIES 0x80
713 
714 // MARK: Attribute Property Flag, BTstack extension
715 // value is asked from client
716 #define ATT_PROPERTY_DYNAMIC             0x100
717 
718 // Security levels
719 #define ATT_SECURITY_NONE 0
720 #define ATT_SECURITY_ENCRYPTED 1
721 #define ATT_SECURITY_AUTHENTICATED 2
722 #define ATT_SECURITY_AUTHORIZED 3
723 #define ATT_SECURITY_AUTHENTICATED_SC 4
724 
725 // internal additions
726 // 128 bit UUID used
727 #define ATT_PROPERTY_UUID128             0x200
728 // Read/Write Permission bits
729 #define ATT_PROPERTY_READ_PERMISSION_BIT_0  0x0400
730 #define ATT_PROPERTY_READ_PERMISSION_BIT_1  0x0800
731 #define ATT_PROPERTY_WRITE_PERMISSION_BIT_0 0x0001
732 #define ATT_PROPERTY_WRITE_PERMISSION_BIT_1 0x0010
733 #define ATT_PROPERTY_READ_PERMISSION_SC     0x0020
734 #define ATT_PROPERTY_WRITE_PERMISSION_SC    0x0080
735 
736 
737 // ATT Transaction Timeout of 30 seconds for Command/Response or Indication/Confirmation
738 #define ATT_TRANSACTION_TIMEOUT_MS     30000
739 
740 #define ATT_TRANSACTION_MODE_NONE      0x0
741 #define ATT_TRANSACTION_MODE_ACTIVE    0x1
742 #define ATT_TRANSACTION_MODE_EXECUTE   0x2
743 #define ATT_TRANSACTION_MODE_CANCEL    0x3
744 #define ATT_TRANSACTION_MODE_VALIDATE  0x4
745 
746 // MARK: GATT UUIDs
747 #define GATT_PRIMARY_SERVICE_UUID                   0x2800
748 #define GATT_SECONDARY_SERVICE_UUID                 0x2801
749 #define GATT_INCLUDE_SERVICE_UUID                   0x2802
750 #define GATT_CHARACTERISTICS_UUID                   0x2803
751 #define GATT_CHARACTERISTIC_EXTENDED_PROPERTIES     0x2900
752 #define GATT_CHARACTERISTIC_USER_DESCRIPTION        0x2901
753 #define GATT_CLIENT_CHARACTERISTICS_CONFIGURATION   0x2902
754 #define GATT_SERVER_CHARACTERISTICS_CONFIGURATION   0x2903
755 #define GATT_CHARACTERISTIC_PRESENTATION_FORMAT     0x2904
756 #define GATT_CHARACTERISTIC_AGGREGATE_FORMAT        0x2905
757 
758 #define GATT_CLIENT_CHARACTERISTICS_CONFIGURATION_NONE          0
759 #define GATT_CLIENT_CHARACTERISTICS_CONFIGURATION_NOTIFICATION  1
760 #define GATT_CLIENT_CHARACTERISTICS_CONFIGURATION_INDICATION    2
761 
762 // GAP Service and Characteristics
763 #define GAP_SERVICE_UUID               0x1800
764 #define GAP_DEVICE_NAME_UUID           0x2a00
765 #define GAP_APPEARANCE_UUID            0x2a01
766 #define GAP_PERIPHERAL_PRIVACY_FLAG    0x2a02
767 #define GAP_RECONNECTION_ADDRESS_UUID  0x2a03
768 #define GAP_PERIPHERAL_PREFERRED_CONNECTION_PARAMETERS_UUID 0x2a04
769 #define GAP_SERVICE_CHANGED            0x2a05
770 
771 // Bluetooth GATT types
772 
773 typedef struct {
774     uint16_t year;      // 0 - year  is not known; or [1582,9999]
775     uint8_t  month;     // 0 - month is not known; or [1,12]
776     uint8_t  day;       // 0 - day   is not known; or [1,31]
777     uint8_t  hours;     // [0,23]
778     uint8_t  minutes;   // [0,59]
779     uint8_t  seconds;   // [0,59]
780 } gatt_date_time_t;
781 
782 /**
783  * SM - LE Security Manager
784  */
785 // Bluetooth Spec definitions
786 typedef enum {
787     SM_CODE_PAIRING_REQUEST = 0X01,
788     SM_CODE_PAIRING_RESPONSE,
789     SM_CODE_PAIRING_CONFIRM,
790     SM_CODE_PAIRING_RANDOM,
791     SM_CODE_PAIRING_FAILED,
792     SM_CODE_ENCRYPTION_INFORMATION,
793     SM_CODE_MASTER_IDENTIFICATION,
794     SM_CODE_IDENTITY_INFORMATION,
795     SM_CODE_IDENTITY_ADDRESS_INFORMATION,
796     SM_CODE_SIGNING_INFORMATION,
797     SM_CODE_SECURITY_REQUEST,
798     SM_CODE_PAIRING_PUBLIC_KEY,
799     SM_CODE_PAIRING_DHKEY_CHECK,
800     SM_CODE_KEYPRESS_NOTIFICATION,
801 } SECURITY_MANAGER_COMMANDS;
802 
803 // IO Capability Values
804 typedef enum {
805     IO_CAPABILITY_DISPLAY_ONLY = 0,
806     IO_CAPABILITY_DISPLAY_YES_NO,
807     IO_CAPABILITY_KEYBOARD_ONLY,
808     IO_CAPABILITY_NO_INPUT_NO_OUTPUT,
809     IO_CAPABILITY_KEYBOARD_DISPLAY, // not used by secure simple pairing
810 } io_capability_t;
811 
812 // Authentication requirement flags
813 #define SM_AUTHREQ_NO_BONDING        0x00
814 #define SM_AUTHREQ_BONDING           0x01
815 #define SM_AUTHREQ_MITM_PROTECTION   0x04
816 #define SM_AUTHREQ_SECURE_CONNECTION 0x08
817 #define SM_AUTHREQ_KEYPRESS          0x10
818 
819 // Key distribution flags used by spec
820 #define SM_KEYDIST_ENC_KEY  0x01
821 #define SM_KEYDIST_ID_KEY   0x02
822 #define SM_KEYDIST_SIGN     0x04
823 #define SM_KEYDIST_LINK_KEY 0x08
824 
825 // Key distribution flags used internally
826 #define SM_KEYDIST_FLAG_ENCRYPTION_INFORMATION       0x01
827 #define SM_KEYDIST_FLAG_MASTER_IDENTIFICATION        0x02
828 #define SM_KEYDIST_FLAG_IDENTITY_INFORMATION         0x04
829 #define SM_KEYDIST_FLAG_IDENTITY_ADDRESS_INFORMATION 0x08
830 #define SM_KEYDIST_FLAG_SIGNING_IDENTIFICATION       0x10
831 
832 // STK Generation Methods
833 #define SM_STK_GENERATION_METHOD_JUST_WORKS          0x01
834 #define SM_STK_GENERATION_METHOD_OOB                 0x02
835 #define SM_STK_GENERATION_METHOD_PASSKEY             0x04
836 #define SM_STK_GENERATION_METHOD_NUMERIC_COMPARISON  0x08
837 
838 // Pairing Failed Reasons
839 #define SM_REASON_RESERVED                     0x00
840 #define SM_REASON_PASSKEY_ENTRY_FAILED         0x01
841 #define SM_REASON_OOB_NOT_AVAILABLE            0x02
842 #define SM_REASON_AUTHENTHICATION_REQUIREMENTS 0x03
843 #define SM_REASON_CONFIRM_VALUE_FAILED         0x04
844 #define SM_REASON_PAIRING_NOT_SUPPORTED        0x05
845 #define SM_REASON_ENCRYPTION_KEY_SIZE          0x06
846 #define SM_REASON_COMMAND_NOT_SUPPORTED        0x07
847 #define SM_REASON_UNSPECIFIED_REASON           0x08
848 #define SM_REASON_REPEATED_ATTEMPTS            0x09
849 #define SM_REASON_INVALID_PARAMETERS           0x0a
850 #define SM_REASON_DHKEY_CHECK_FAILED           0x0b
851 #define SM_REASON_NUMERIC_COMPARISON_FAILED    0x0c
852 
853 // also, invalid parameters
854 // and reserved
855 
856 // Keypress Notifications
857 #define SM_KEYPRESS_PASSKEY_ENTRY_STARTED      0x00
858 #define SM_KEYPRESS_PASSKEY_DIGIT_ENTERED      0x01
859 #define SM_KEYPRESS_PASSKEY_DIGIT_ERASED       0x02
860 #define SM_KEYPRESS_PASSKEY_CLEARED            0x03
861 #define SM_KEYPRESS_PASSKEY_ENTRY_COMPLETED    0x04
862 
863 
864 #endif
865