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att_api.h
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1 /*************************************************************************************************/
2 /*!
3  * \file
4  *
5  * \brief Attribute protocol client and server API.
6  *
7  * Copyright (c) 2009-2019 Arm Ltd. All Rights Reserved.
8  *
9  * Copyright (c) 2019-2020 Packetcraft, Inc.
10  *
11  * Licensed under the Apache License, Version 2.0 (the "License");
12  * you may not use this file except in compliance with the License.
13  * You may obtain a copy of the License at
14  *
15  * http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing, software
18  * distributed under the License is distributed on an "AS IS" BASIS,
19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20  * See the License for the specific language governing permissions and
21  * limitations under the License.
22  */
23 /*************************************************************************************************/
24 #ifndef ATT_API_H
25 #define ATT_API_H
26 
27 #include "wsf_timer.h"
28 #include "att_defs.h"
29 #include "att_uuid.h"
30 #include "dm_api.h"
31 #include "cfg_stack.h"
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 /**************************************************************************************************
38  Macros
39 **************************************************************************************************/
40 /*! \addtogroup STACK_ATTS_API
41  * \{ */
42 /** \name ATT Server Attribute Settings
43  * Settings that may be set on each attribute.
44  */
45 /**@{*/
46 #define ATTS_SET_UUID_128 0x01 /*!< \brief Set if the UUID is 128 bits in length */
47 #define ATTS_SET_WRITE_CBACK 0x02 /*!< \brief Set if the group callback is executed when
48  this attribute is written by a client device */
49 #define ATTS_SET_READ_CBACK 0x04 /*!< \brief Set if the group callback is executed when
50  this attribute is read by a client device */
51 #define ATTS_SET_VARIABLE_LEN 0x08 /*!< \brief Set if the attribute has a variable length */
52 #define ATTS_SET_ALLOW_OFFSET 0x10 /*!< \brief Set if writes are allowed with an offset */
53 #define ATTS_SET_CCC 0x20 /*!< \brief Set if the attribute is a client characteristic
54  configuration descriptor */
55 #define ATTS_SET_ALLOW_SIGNED 0x40 /*!< \brief Set if signed writes are allowed */
56 #define ATTS_SET_REQ_SIGNED 0x80 /*!< \brief Set if signed writes are required if link
57  is not encrypted */
58 /**@}*/
59 
60 /** \name ATT Server Attribute Permissions
61  * Permissions used to describe a attribute's security setting.
62  * These values can be set in any combination.
63  */
64 /**@{*/
65 #define ATTS_PERMIT_READ 0x01 /*!< \brief Set if attribute can be read */
66 #define ATTS_PERMIT_READ_AUTH 0x02 /*!< \brief Set if attribute read requires authentication */
67 #define ATTS_PERMIT_READ_AUTHORIZ 0x04 /*!< \brief Set if attribute read requires authorization */
68 #define ATTS_PERMIT_READ_ENC 0x08 /*!< \brief Set if attribute read requires encryption */
69 #define ATTS_PERMIT_WRITE 0x10 /*!< \brief Set if attribute can be written */
70 #define ATTS_PERMIT_WRITE_AUTH 0x20 /*!< \brief Set if attribute write requires authentication */
71 #define ATTS_PERMIT_WRITE_AUTHORIZ 0x40 /*!< \brief Set if attribute write requires authorization */
72 #define ATTS_PERMIT_WRITE_ENC 0x80 /*!< \brief Set if attribute write requires encryption */
73 /**@}*/
74 /*! \} */ /* STACK_ATTS_API */
75 
76 /*! \addtogroup STACK_ATTC_API
77  * \{ */
78 /** \name ATT Client Discovery and Configuration Settings
79  * Settings used to configurate ATT Discovery procedure for ATT Clients.
80  */
81 /**@{*/
82 #define ATTC_SET_UUID_128 0x01 /*!< \brief Set if the UUID is 128 bits in length */
83 #define ATTC_SET_REQUIRED 0x02 /*!< \brief Set if characteristic must be discovered */
84 #define ATTC_SET_DESCRIPTOR 0x04 /*!< \brief Set if this is a characteristic descriptor */
85 /**@}*/
86 /*! \} */ /* STACK_ATTC_API */
87 
88 /*! \addtogroup STACK_ATT_API
89  * \{ */
90 /** \name ATT Callback Events
91  * Events related to ATT transactions.
92  */
93 /**@{*/
94 #define ATT_CBACK_START 0x02 /*!< \brief ATT callback event starting value */
95 
96 /*! \brief ATT client callback events */
97 enum /*!< \brief Internal note: event values match method values */
98 {
99  ATTC_FIND_INFO_RSP = ATT_CBACK_START, /*!< \brief Find information response */
100  ATTC_FIND_BY_TYPE_VALUE_RSP, /*!< \brief Find by type value response */
101  ATTC_READ_BY_TYPE_RSP, /*!< \brief Read by type value response */
102  ATTC_READ_RSP, /*!< \brief Read response */
103  ATTC_READ_LONG_RSP, /*!< \brief Read long response */
104  ATTC_READ_MULTIPLE_RSP, /*!< \brief Read multiple response */
105  ATTC_READ_BY_GROUP_TYPE_RSP, /*!< \brief Read group type response */
106  ATTC_WRITE_RSP, /*!< \brief Write response */
107  ATTC_WRITE_CMD_RSP, /*!< \brief Write command response */
108  ATTC_PREPARE_WRITE_RSP, /*!< \brief Prepare write response */
109  ATTC_EXECUTE_WRITE_RSP, /*!< \brief Execute write response */
110  ATTC_HANDLE_VALUE_NTF, /*!< \brief Handle value notification */
111  ATTC_HANDLE_VALUE_IND, /*!< \brief Handle value indication */
112  ATTC_READ_MULT_VAR_RSP = 16, /*!< \brief Read multiple variable length response */
113  ATTC_MULT_VALUE_NTF, /*!< \brief Read multiple value notification */
114  /* ATT server callback events */
115  ATTS_HANDLE_VALUE_CNF, /*!< \brief Handle value confirmation */
116  ATTS_MULT_VALUE_CNF, /*!< \brief Handle multiple value confirmation */
117  ATTS_CCC_STATE_IND, /*!< \brief Client chracteristic configuration state change */
118  ATTS_DB_HASH_CALC_CMPL_IND, /*!< \brief Database hash calculation complete */
119  /* ATT common callback events */
120  ATT_MTU_UPDATE_IND, /*!< \brief Negotiated MTU value */
121  ATT_EATT_CONN_CMPL_IND, /*!< \brief EATT Connect channels complete */
122  ATT_EATT_RECONFIG_CMPL_IND /*!< \brief EATT Reconfigure complete */
123 };
124 
125 /*! \brief ATT callback events */
126 #define ATT_CBACK_END ATT_EATT_RECONFIG_CMPL_IND /*!< \brief ATT callback event ending value */
127 /**@}*/
128 
129 /** \name ATT Client Awareness of Database Change
130  * Status of a client's awareness of a database change.
131  */
132 /**@{*/
133 /*! \brief client's awareness to database change. */
134 enum attClientAwareStates
135 {
136  ATTS_CLIENT_CHANGE_AWARE = 0, /*!< Client Aware. */
137  ATTS_CLIENT_CHANGE_PENDING_AWARE, /*!< Client Aware pending ATT Request. For internal stack use only. */
138  ATTS_CLIENT_CHANGE_AWARE_DB_READ_PENDING, /*!< Client Aware, Database Hash read pending hash update completion. For internal stack use only. */
139  ATTS_CLIENT_CHANGE_UNAWARE, /*!< Client Unaware. */
140 };
141 /**@}*/
142 
143 /**************************************************************************************************
144  Data Types
145 **************************************************************************************************/
146 
147 /*! \brief ATT run-time configurable parameters */
148 typedef struct
149 {
150  wsfTimerTicks_t discIdleTimeout; /*!< \brief ATT server service discovery connection idle timeout in seconds */
151  uint16_t mtu; /*!< \brief desired ATT MTU */
152  uint8_t transTimeout; /*!< \brief transcation timeout in seconds */
153  uint8_t numPrepWrites; /*!< \brief number of queued prepare writes supported by server */
154 } attCfg_t;
155 
156 /*! \brief EATT run-time configurable parameters */
157 typedef struct
158 {
159  uint16_t mtu; /*!< \brief MTU */
160  uint16_t mps; /*!< \brief MPS */
161  bool_t initiateEatt; /*!< \brief Open EATT channels automatically on connect */
162  uint8_t authoriz; /*!< \brief Authorization required */
163  uint8_t secLevel; /*!< \brief Security level required */
164  uint8_t numChans; /*!< \brief Number of enhanced l2cap channels per connection */
165  uint8_t *pPriorityTbl; /*!< \brief Min priority required for each channel */
166 } eattCfg_t;
167 
168 /*!
169  * \brief ATT callback event
170  *
171  * \param hdr.event Callback event
172  * \param hdr.param DM connection ID
173  * \param hdr.status Event status: ATT_SUCCESS or error status
174  * \param pValue Pointer to value data, valid if valueLen > 0
175  * \param valueLen Length of value data
176  * \param handle Attribute handle
177  * \param continuing TRUE if more response packets expected
178  * \param mtu Negotiated MTU value
179  */
180 typedef struct
181 {
182  wsfMsgHdr_t hdr; /*!< \brief Header structure */
183  uint8_t *pValue; /*!< \brief Value */
184  uint16_t valueLen; /*!< \brief Value length */
185  uint16_t handle; /*!< \brief Attribute handle */
186  bool_t continuing; /*!< \brief TRUE if more response packets expected */
187  uint16_t mtu; /*!< \brief Negotiated MTU value */
188 } attEvt_t;
189 
190 /*! \brief ATT event callback type.
191  *
192  * This callback function sends ATT events to the client application. A
193  * single callback function is used for both ATTS and ATTC.
194  *
195  * \param pEvt Pointer to ATT event structure.
196  *
197  * \return None.
198  */
199 typedef void (*attCback_t)(attEvt_t *pEvt);
200 /*! \} */ /* STACK_ATT_API */
201 
202 /*! \addtogroup STACK_ATTS_API
203  * \{ */
204 /**
205  * \name Attribute Server Data Types
206  *
207  */
208 /**@{*/
209 /*! \brief Attribute structure */
210 typedef struct
211 {
212  uint8_t const *pUuid; /*!< \brief Pointer to the attribute's UUID */
213  uint8_t *pValue; /*!< \brief Pointer to the attribute's value */
214  uint16_t *pLen; /*!< \brief Pointer to the length of the attribute's value */
215  uint16_t maxLen; /*!< \brief Maximum length of attribute's value */
216  uint8_t settings; /*!< \brief Attribute settings */
217  uint8_t permissions; /*!< \brief Attribute permissions */
218 } attsAttr_t;
219 
220 /*! \brief Client supported features record structure. */
221 typedef struct
222 {
223  uint8_t csf; /*!< Client supported features characteristic value */
224  uint8_t changeAwareState; /*!< Client awareness of GATT database changes */
225 } attsCsfRec_t;
226 /**@}*/
227 
228 /** \name ATT Server Callbacks
229  *
230  */
231 /**@{*/
232 /*! \brief Attribute group read callback
233  *
234  * This is the attribute server read callback. It is executed on an attribute
235  * read operation if bitmask ATTS_SET_READ_CBACK is set in the settings field
236  * of the attribute structure.
237  * For a read operation, if the operation is successful the function must set
238  * pAttr->pValue to the data to be read. In addition, if the attribute is
239  * variable length then pAttr->pLen must be set as well.
240  *
241  * \param connId DM connection ID.
242  * \param handle Attribute handle.
243  * \param operation Operation type.
244  * \param offset Read data offset.
245  * \param pAttr Pointer to attribute structure.
246  *
247  * \return status of the operation. \ref ATT_SUCCESS if successful.
248  */
249 typedef uint8_t (*attsReadCback_t)(dmConnId_t connId, uint16_t handle, uint8_t operation,
250  uint16_t offset, attsAttr_t *pAttr);
251 
252 /*! \brief Attribute group write callback
253  *
254  * This is the attribute server write callback. It is executed on an
255  * attribute write operation if bitmask ATTS_SET_WRITE_CBACK is set
256  * in the settings field of the attribute structure.
257  *
258  * \param connId DM connection ID.
259  * \param handle Attribute handle.
260  * \param operation Operation type.
261  * \param offset Write data offset.
262  * \param len Length of data to write.
263  * \param pValue Pointer to data to write.
264  * \param pAttr Pointer to attribute structure.
265  *
266  * \return status of operation. \ref ATT_SUCCESS if successful.
267  */
268 typedef uint8_t (*attsWriteCback_t)(dmConnId_t connId, uint16_t handle, uint8_t operation,
269  uint16_t offset, uint16_t len, uint8_t *pValue,
270  attsAttr_t *pAttr);
271 
272 /*! \brief ATTS authorization callback type
273  *
274  * This callback function is executed when a read or write operation occurs
275  * and the security field of an attribute structure is set to
276  * \ref ATTS_PERMIT_READ_AUTHORIZ or \ref ATTS_PERMIT_WRITE_AUTHORIZ respectively.
277  *
278  * \param connId DM Connection ID.
279  * \param permit Set to \ref ATTS_PERMIT_WRITE for a writre operation or
280  * \ref ATTS_PERMIT_READ for a read operation.
281  * \param handle Attribute handle.
282  *
283  * \return status of the operation. \ref ATT_SUCCESS if successful, else if failure
284  * the \ref ATT_ERR_AUTH is typically returned.
285  */
286 typedef uint8_t (*attsAuthorCback_t)(dmConnId_t connId, uint8_t permit, uint16_t handle);
287 
288 /*! \brief ATTS client supported features write callback type
289  *
290  * This callback function is executed when the client supported features record for
291  * this client has been updated.
292  *
293  * \param connId DM Connection ID.
294  * \param changeAwareState The state of awareness to a change, see ::attClientAwareStates.
295  * \param pCsf Pointer to the client supported features value.
296  *
297  * \return None.
298  */
299 typedef void (*attsCsfWriteCback_t)(dmConnId_t connId, uint8_t changeAwareState, uint8_t *pCsf);
300 /**@}*/
301 
302 /**
303  * \name Attribute Server Data Types
304  *
305  */
306 /**@{*/
307 /*! \brief Attribute group */
308 typedef struct attsGroup_tag
309 {
310  struct attsGroup_tag *pNext; /*!< \brief For internal use only */
311  attsAttr_t *pAttr; /*!< \brief Pointer to attribute list for this group */
312  attsReadCback_t readCback; /*!< \brief Read callback function */
313  attsWriteCback_t writeCback; /*!< \brief Write callback function */
314  uint16_t startHandle; /*!< \brief The handle of the first attribute in this group */
315  uint16_t endHandle; /*!< \brief The handle of the last attribute in this group */
316 } attsGroup_t;
317 
318 /*! \brief Client characteristc configuration settings */
319 typedef struct
320 {
321  uint16_t handle; /*!< \brief Client characteristc configuration descriptor handle */
322  uint16_t valueRange; /*!< \brief Acceptable value range of the descriptor value */
323  uint8_t secLevel; /*!< \brief Security level of characteristic value */
324 } attsCccSet_t;
325 
326 /*! \brief ATTS client characteristic configuration callback structure */
327 typedef struct
328 {
329  wsfMsgHdr_t hdr; /*!< \brief Header structure */
330  uint16_t handle; /*!< \brief CCCD handle */
331  uint16_t value; /*!< \brief CCCD value */
332  uint8_t idx; /*!< \brief CCCD settings index */
333 } attsCccEvt_t;
334 /**@}*/
335 /*! \} */ /* STACK_ATTS_API */
336 
337 /*! \addtogroup STACK_ATTC_API
338  * \{ */
339 /**
340  * \name ATT Client Data Types
341  */
342 /**@{*/
343 /*! \brief ATT client structure for characteristic and descriptor discovery */
344 typedef struct attcDiscChar_tag
345 {
346  uint8_t const *pUuid; /*!< \brief Pointer to UUID */
347  uint8_t settings; /*!< \brief Characteristic discovery settings */
348 } attcDiscChar_t;
349 
350 /*! \brief ATT client structure for characteristic and descriptor configuration */
351 typedef struct
352 {
353  uint8_t const *pValue; /*!< \brief Pointer to default value or NULL */
354  uint8_t valueLen; /*!< \brief Default value length */
355  uint8_t hdlIdx; /*!< \brief Index of its handle in handle list */
356 } attcDiscCfg_t;
357 
358 /*! \brief ATT client discovery control block */
359 typedef struct
360 {
361  attcDiscChar_t **pCharList; /*!< \brief Characterisic list for discovery */
362  uint16_t *pHdlList; /*!< \brief Characteristic handle list */
363  attcDiscCfg_t *pCfgList; /*!< \brief Characterisic list for configuration */
364  uint8_t charListLen; /*!< \brief Characteristic and handle list length */
365  uint8_t cfgListLen; /*!< \brief Configuration list length */
366 
367  uint16_t svcStartHdl; /*!< \brief Internal use only */
368  uint16_t svcEndHdl; /*!< \brief Internal use only */
369  uint8_t charListIdx; /*!< \brief Internal use only */
370  uint8_t endHdlIdx; /*!< \brief Internal use only */
371 } attcDiscCb_t;
372 /**@}*/
373 /*! \} */ /* STACK_ATTC_API */
374 
375 /*! \addtogroup STACK_ATTS_API
376  * \{ */
377 /** \name ATT Server Callbacks
378  *
379  */
380 /**@{*/
381 /*! \brief ATTS client characteristic configuration callback
382  *
383  * Client characteristic configuration callback. This function is executed
384  * when a CCCD value changes. This happens when a peer device writes a new
385  * value to the CCCD or when a CCCD table is initialized by calling \ref AttsCccInitTable.
386  *
387  * \param pEvt Pointer to callback structure.
388  *
389  * \return None.
390  */
391 typedef void (*attsCccCback_t)(attsCccEvt_t *pEvt);
392 /**@}*/
393 /*! \} */ /* STACK_ATTS_API */
394 
395 /**************************************************************************************************
396  Global Variables
397 **************************************************************************************************/
398 
399 /*! \addtogroup STACK_INIT
400  * \{ */
401 /** \name ATT Configuration Structure
402  * Pointer to structure containing initialization details of the ATT Subsystem. To be configured
403  * by Application.
404  */
405 /**@{*/
406 /*! \brief Configuration pointer */
407 extern attCfg_t *pAttCfg;
408 
409 /*! \brief Enhanced configuration pointer */
410 extern eattCfg_t *pEattCfg;
411 /**@}*/
412 /*! \} */ /* STACK_INIT */
413 
414 /**************************************************************************************************
415  Function Declarations
416 **************************************************************************************************/
417 
418 /*! \addtogroup STACK_ATT_API
419  * \{ */
420 /** \name ATT Setup Functions
421  *
422  */
423 /**@{*/
424 /*************************************************************************************************/
425 /*!
426  * \brief Register a callback with ATT. This callback will be used for messages from both ATTC
427  * and ATTS.
428  *
429  * \param cback Client callback function.
430  *
431  * \return None.
432  */
433 /*************************************************************************************************/
434 void AttRegister(attCback_t cback);
435 
436 /*************************************************************************************************/
437 /*!
438  * \brief Register a connection callback with ATT. The callback is typically used to
439  * manage the attribute server database.
440  *
441  * \param cback Client callback function.
442  *
443  * \return None.
444  */
445 /*************************************************************************************************/
446 void AttConnRegister(dmCback_t cback);
447 /**@}*/
448 
449 /** \name ATT Parameter Functions
450  * Functions specific to a connection between 2 devices. Functions may be called by either
451  * Client or server.
452  */
453 /**@{*/
454 /*************************************************************************************************/
455 /*!
456  * \brief Get the attribute protocol MTU of a connection.
457  *
458  * \param connId DM connection ID.
459  *
460  * \return MTU of the connection.
461  */
462 /*************************************************************************************************/
463 uint16_t AttGetMtu(dmConnId_t connId);
464 /**@}*/
465 
466 /** \name ATT Message Passing Functions
467  *
468  */
469 /**@{*/
470 /*************************************************************************************************/
471 /*!
472  * \brief Allocate an ATT message buffer to be sent with the ATT attribute protocol
473  * zero-copy APIs.
474  *
475  * \param len Message length in bytes.
476  * \param opcode Opcode for ATT message.
477  *
478  * \return Pointer to message buffer or NULL if allocation failed.
479  */
480 /*************************************************************************************************/
481 void *AttMsgAlloc(uint16_t len, uint8_t opcode);
482 
483 /*************************************************************************************************/
484 /*!
485  * \brief Free an ATT message buffer allocated with AttMsgAlloc().
486  *
487  * \param pMsg Pointer to message buffer.
488  * \param opcode Opcode for ATT message.
489  *
490  * \return None.
491  */
492 /*************************************************************************************************/
493 void AttMsgFree(void *pMsg, uint8_t opcode);
494 /**@}*/
495 /*! \} */ /* STACK_ATT_API */
496 
497 /*! \addtogroup STACK_ATTS_API
498  * \{ */
499 /** \name ATT Server Functions
500  *
501  */
502 /**@{*/
503 /*************************************************************************************************/
504 /*!
505  * \brief Initialize ATT server.
506  *
507  * \return None.
508  */
509 /*************************************************************************************************/
510 void AttsInit(void);
511 
512 /*************************************************************************************************/
513 /*!
514  * \brief Initialize ATT server for indications/notifications.
515  *
516  * \return None.
517  */
518 /*************************************************************************************************/
519 void AttsIndInit(void);
520 
521 /*************************************************************************************************/
522 /*!
523  * \brief Initialize ATT server for data signing.
524  *
525  * \return None.
526  */
527 /*************************************************************************************************/
528 void AttsSignInit(void);
529 
530 /*************************************************************************************************/
531 /*!
532  * \brief Register an authorization callback with the attribute server.
533  *
534  * \param cback Client callback function.
535  *
536  * \return None.
537  */
538 /*************************************************************************************************/
539 void AttsAuthorRegister(attsAuthorCback_t cback);
540 
541 /*************************************************************************************************/
542 /*!
543  * \brief Add an attribute group to the attribute server.
544  *
545  * \param pGroup Pointer to an attribute group structure.
546  *
547  * \return None.
548  */
549 /*************************************************************************************************/
550 void AttsAddGroup(attsGroup_t *pGroup);
551 
552 /*************************************************************************************************/
553 /*!
554  * \brief Remove an attribute group from the attribute server.
555  *
556  * \param startHandle Start handle of attribute group to be removed.
557  *
558  * \return None.
559  */
560 /*************************************************************************************************/
561 void AttsRemoveGroup(uint16_t startHandle);
562 
563 /*************************************************************************************************/
564 /*!
565 * \brief Calculate database hash from the GATT database.
566 *
567 * \return None.
568 */
569 /*************************************************************************************************/
570 void AttsCalculateDbHash(void);
571 
572 /*************************************************************************************************/
573 /*!
574  * \brief Create hash from the database string.
575  *
576  * \param pKey Key for hashing.
577  * \param pMsg Plaintext to hash.
578  * \param msgLen Length of Plaintext data.
579  *
580  * \return \ref TRUE if successful, \ref FALSE if not.
581  */
582 /*************************************************************************************************/
583 bool_t AttsHashDatabaseString(uint8_t *pKey, uint8_t *pMsg, uint16_t msgLen);
584 
585 /*************************************************************************************************/
586 /*!
587  * \brief Set an attribute value in the attribute server.
588  *
589  * \param handle Attribute handle.
590  * \param valueLen Attribute length.
591  * \param pValue Attribute value.
592  *
593  * \return ATT_SUCCESS if successful otherwise error.
594  */
595 /*************************************************************************************************/
596 uint8_t AttsSetAttr(uint16_t handle, uint16_t valueLen, uint8_t *pValue);
597 
598 /*************************************************************************************************/
599 /*!
600  * \brief Get an attribute value in the attribute server.
601  *
602  * \param handle Attribute handle.
603  * \param pLen Returned attribute length pointer.
604  * \param pValue Returned attribute value pointer.
605  *
606  * \return ATT_SUCCESS if successful otherwise error.
607  * \return This function returns the attribute length in pLen and a pointer to the attribute
608  * value in pValue.
609  */
610 /*************************************************************************************************/
611 uint8_t AttsGetAttr(uint16_t handle, uint16_t *pLen, uint8_t **pValue);
612 
613 /*************************************************************************************************/
614 /*!
615  * \brief Send an attribute protocol Handle Value Indication.
616  *
617  * \param connId DM connection ID.
618  * \param handle Attribute handle.
619  * \param valueLen Length of value data.
620  * \param pValue Pointer to value data.
621  *
622  * \return None.
623  */
624 /*************************************************************************************************/
625 void AttsHandleValueInd(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
626 
627 /*************************************************************************************************/
628 /*!
629  * \brief Send an attribute protocol Handle Value Notification.
630  *
631  * \param connId DM connection ID.
632  * \param handle Attribute handle.
633  * \param valueLen Length of value data.
634  * \param pValue Pointer to value data.
635  *
636  * \return None.
637  */
638 /*************************************************************************************************/
639 void AttsHandleValueNtf(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
640 
641 /*************************************************************************************************/
642 /*!
643  * \brief Send an attribute protocol Handle Value Indication without copying the attribute
644  * value data.
645  *
646  * Note: attribute value buffer 'pValue' must be allocated with AttMsgAlloc().
647  *
648  * \param connId DM connection ID.
649  * \param handle Attribute handle.
650  * \param valueLen Length of value data.
651  * \param pValue Pointer to value data.
652  *
653  * \return None.
654  */
655 /*************************************************************************************************/
656 void AttsHandleValueIndZeroCpy(dmConnId_t connId, uint16_t handle, uint16_t valueLen,
657  uint8_t *pValue);
658 
659 /*************************************************************************************************/
660 /*!
661  * \brief Send an attribute protocol Handle Value Notification without copying the attribute
662  * value data.
663  *
664  * Note: attribute value buffer 'pValue' must be allocated with AttMsgAlloc().
665  *
666  * \param connId DM connection ID.
667  * \param handle Attribute handle.
668  * \param valueLen Length of value data.
669  * \param pValue Pointer to value data.
670  *
671  * \return None.
672  */
673 /*************************************************************************************************/
674 void AttsHandleValueNtfZeroCpy(dmConnId_t connId, uint16_t handle, uint16_t valueLen,
675  uint8_t *pValue);
676 
677 /*************************************************************************************************/
678 /*!
679  * \brief Register the utility service for managing client characteristic
680  * configuration descriptors. This function is typically called once on
681  * system initialization.
682  *
683  * \param setLen Length of settings array.
684  * \param pSet Array of CCC descriptor settings.
685  * \param cback Client callback function.
686  *
687  * \return None.
688  */
689 /*************************************************************************************************/
690 void AttsCccRegister(uint8_t setLen, attsCccSet_t *pSet, attsCccCback_t cback);
691 
692 /*************************************************************************************************/
693 /*!
694  * \brief Initialize the client characteristic configuration descriptor value table for a
695  * connection. The table is initialized with the values from pCccTbl. If pCccTbl
696  * is NULL the table will be initialized to zero.
697  *
698  * This function must be called when a connection is established or when a
699  * device is bonded.
700  *
701  * \param connId DM connection ID.
702  * \param pCccTbl Pointer to the descriptor value array. The length of the array
703  * must equal the value of setLen passed to AttsCccRegister().
704  *
705  * \return None.
706  */
707 /*************************************************************************************************/
708 void AttsCccInitTable(dmConnId_t connId, uint16_t *pCccTbl);
709 
710 /*************************************************************************************************/
711 /*!
712  * \brief Clear and deallocate the client characteristic configuration descriptor value
713  * table for a connection. This function must be called when a connection is closed.
714  *
715  * \param connId DM connection ID.
716  *
717  * \return None.
718  */
719 /*************************************************************************************************/
720 void AttsCccClearTable(dmConnId_t connId);
721 
722 /*************************************************************************************************/
723 /*!
724  * \brief Get the value of a client characteristic configuration descriptor by its index.
725  * If not found, return zero.
726  *
727  * \param connId DM connection ID.
728  * \param idx Index of descriptor in CCC descriptor handle table.
729  *
730  * \return Value of the descriptor.
731  */
732 /*************************************************************************************************/
733 uint16_t AttsCccGet(dmConnId_t connId, uint8_t idx);
734 
735 /*************************************************************************************************/
736 /*!
737  * \brief Set the value of a client characteristic configuration descriptor by its index.
738  *
739  * \param connId DM connection ID.
740  * \param idx Index of descriptor in CCC descriptor handle table.
741  * \param value Value of the descriptor.
742  *
743  * \return None.
744  */
745 /*************************************************************************************************/
746 void AttsCccSet(dmConnId_t connId, uint8_t idx, uint16_t value);
747 
748 /*************************************************************************************************/
749 /*!
750  * \brief Check if a client characteristic configuration descriptor is enabled and if
751  * the characteristic's security level has been met.
752  *
753  * \param connId DM connection ID.
754  * \param idx Index of descriptor in CCC descriptor handle table.
755  *
756  * \return Value of the descriptor if security level is met, otherwise zero.
757  */
758 /*************************************************************************************************/
759 uint16_t AttsCccEnabled(dmConnId_t connId, uint8_t idx);
760 
761 /*************************************************************************************************/
762 /*!
763  * \brief Get number of CCC entries in table.
764  *
765  * \return Number of CCC entries in table.
766  */
767 /*************************************************************************************************/
768 uint8_t AttsGetCccTableLen(void);
769 
770 /*************************************************************************************************/
771 /*!
772  * \brief Send a response to a pending write request. For use with ATT_RSP_PENDING.
773  *
774  * \param connId Connection ID.
775  * \param handle Attribute handle.
776  * \param status Status of the write request.
777  *
778  * \return None.
779  *
780  * \note When a higher layer returns ATT_RSP_PENDING to an ATT write callback indicating the
781  * response status is pending, the higher layer must subsequently call this function
782  * with the status of the write request.
783  */
784 /*************************************************************************************************/
785 void AttsContinueWriteReq(dmConnId_t connId, uint16_t handle, uint8_t status);
786 
787 /*************************************************************************************************/
788 /*!
789  * \brief Set the peer's data signing key on this connection. This function
790  * is typically called from the ATT connection callback when the connection is
791  * established. The caller is responsible for maintaining the memory that
792  * contains the key.
793  *
794  * \param connId DM connection ID.
795  * \param pCsrk Pointer to data signing key (CSRK).
796  * \param authenticated True if CSRK is authenticated and false otherwise.
797  *
798  * \return None.
799  */
800 /*************************************************************************************************/
801 void AttsSetCsrk(dmConnId_t connId, uint8_t *pCsrk, bool_t authenticated);
802 
803 /*************************************************************************************************/
804 /*!
805  * \brief Set the peer's sign counter on this connection. This function
806  * is typically called from the ATT connection callback when the connection is
807  * established. ATT maintains the value of the sign counter internally and
808  * sets the value when a signed packet is successfully received.
809  *
810  * \param connId DM connection ID.
811  * \param signCounter Sign counter.
812  *
813  * \return None.
814  */
815 /*************************************************************************************************/
816 void AttsSetSignCounter(dmConnId_t connId, uint32_t signCounter);
817 
818 /*************************************************************************************************/
819 /*!
820  * \brief Get the current value peer's sign counter on this connection. This function
821  * is typically called from the ATT connection callback when the connection is
822  * closed so the application can store the sign counter for use on future
823  * connections.
824  *
825  * \param connId DM connection ID.
826  *
827  * \return Sign counter.
828  */
829 /*************************************************************************************************/
830 uint32_t AttsGetSignCounter(dmConnId_t connId);
831 
832 /*************************************************************************************************/
833 /*!
834  * \brief Initialize ATTS client supported features module.
835  *
836  * \return None.
837  */
838 /*************************************************************************************************/
839 void AttsCsfInit(void);
840 
841 /*************************************************************************************************/
842 /*!
843  * \brief Initialize the client supported features for a connection.
844  *
845  * \param connId DM connection ID.
846  * \param changeAwareState The state of awareness to a change in the database.
847  * \param pCsf Pointer to the client supported features value to cache. \ref NULL or
848  * buffer of length \ref ATT_CSF_LEN.
849  *
850  * \return None.
851  */
852 /*************************************************************************************************/
853 void AttsCsfConnOpen(dmConnId_t connId, uint8_t changeAwareState, uint8_t *pCsf);
854 
855 /*************************************************************************************************/
856 /*!
857  * \brief GATT write of client supported feature characteristic value.
858  *
859  * \param connId DM connection ID.
860  * \param offset offset into csf characteristic.
861  * \param valueLen length of write in bytes.
862  * \param pValue Pointer to client's supported features characteristic value.
863  *
864  * \return \ref ATT_SUCCESS is successful, \ref ATT_ERR_VALUE_NOT_ALLOWED if any supported
865  * features are flipped from 1 to 0.
866  */
867 /*************************************************************************************************/
868 uint8_t AttsCsfWriteFeatures(dmConnId_t connId, uint16_t offset, uint16_t valueLen,
869  uint8_t *pValue);
870 
871 /*************************************************************************************************/
872 /*!
873  * \brief Get client supported feature record.
874  *
875  * \param connId DM connection ID.
876  * \param pCsfOut Output parameter for client supported features buffer.
877  * \param pCsfOutLen Length of output parameter buffer.
878  *
879  * \return None.
880  */
881 /*************************************************************************************************/
882 void AttsCsfGetFeatures(dmConnId_t connId, uint8_t *pCsfOut, uint8_t pCsfOutLen);
883 
884 /*************************************************************************************************/
885 /*!
886  * \brief Get client state of awareness to a change in the database.
887  *
888  * \param connId DM connection ID.
889  *
890  * \return Client's change-aware state. See ::attClientAwareStates.
891  */
892 /*************************************************************************************************/
893 uint8_t AttsCsfGetClientChangeAwareState(dmConnId_t connId);
894 
895 /*************************************************************************************************/
896 /*!
897  * \brief Update a client's state of awareness to a change in the database.
898  *
899  * \param connId DM connection ID. if \ref DM_CONN_ID_NONE, sets the state for all connected
900  * clients.
901  * \param state The state of awareness to a change, see \ref attClientAwareStates.
902  *
903  * \return None.
904  *
905  * \note A callback to application is not needed as it is expected the caller (i.e. the
906  * application) will have updated all persistent records prior to calling this function.
907  */
908 /*************************************************************************************************/
909 void AttsCsfSetClientChangeAwareState(dmConnId_t connId, uint8_t state);
910 
911 /*************************************************************************************************/
912 /*!
913  * \brief Register callback.
914  *
915  * \param writeCback Application callback for when client supported features record is updated.
916  *
917  * \return None.
918  */
919 /*************************************************************************************************/
920 void AttsCsfRegister(attsCsfWriteCback_t writeCback);
921 /**@}*/
922 
923 /** \name ATT Server Dynamic Service Subsystem Functions
924  *
925  */
926 /**@{*/
927 /*************************************************************************************************/
928 /*!
929  * \brief Initialize the Dynamic ATT Service subsystem.
930  *
931  * \return None.
932  */
933 /*************************************************************************************************/
934 void AttsDynInit(void);
935 
936 /*************************************************************************************************/
937 /*!
938  * \brief Dynamically create an ATT Service at runtime.
939  *
940  * \param startHandle Starting attribute handle in the service
941  * \param endHandle Last attribute handle in the service
942  *
943  * \return Service Handle.
944  */
945 /*************************************************************************************************/
946 void *AttsDynCreateGroup(uint16_t startHandle, uint16_t endHandle);
947 
948 /*************************************************************************************************/
949 /*!
950  * \brief Dynamically delete an ATT Service at runtime.
951  *
952  * \param pSvcHandle Service handle returned by \ref AttsDynCreateGroup
953  *
954  * \return None.
955  */
956 /*************************************************************************************************/
957 void AttsDynDeleteGroup(void *pSvcHandle);
958 
959 /*************************************************************************************************/
960 /*!
961  * \brief Register callback functions for a dynamic ATT Service at runtime.
962  *
963  * \param pSvcHandle Service handle returned by \ref AttsDynCreateGroup
964  * \param readCback Read callback function
965  * \param writeCback Write callback function
966  *
967  * \return None.
968  */
969 /*************************************************************************************************/
970 void AttsDynRegister(void *pSvcHandle, attsReadCback_t readCback, attsWriteCback_t writeCback);
971 
972 /*************************************************************************************************/
973 /*!
974  * \brief Dynamically add an attribute to a dynamic ATT Services at runtime.
975  *
976  * \param pSvcHandle Service handle returned by \ref AttsDynCreateGroup
977  * \param pUuid Constant UUID
978  * \param pValue Initial value of attribute (copied into attribute memory)
979  * \param len Length of pValue in bytes
980  * \param maxLen Maximum length of the attribute in bytes
981  * \param settings Attribute settings
982  * \param permissions Attribute permissions
983  *
984  * \return None.
985  */
986 /*************************************************************************************************/
987 void AttsDynAddAttr(void *pSvcHandle, const uint8_t *pUuid, const uint8_t *pValue, uint16_t len,
988  const uint16_t maxLen, uint8_t settings, uint8_t permissions);
989 
990 /*************************************************************************************************/
991 /*!
992  * \brief Dynamically add an attribute with a constant value to a dynamic ATT Services at runtime.
993  *
994  * \param pSvcHandle Service handle returned by \ref AttsDynCreateGroup
995  * \param pUuid Constant UUID
996  * \param pValue Pointer to constant attribute memory
997  * \param len Length of pValue in bytes
998  * \param settings Attribute settings
999  * \param permissions Attribute permissions
1000  *
1001  * \return None.
1002  */
1003 /*************************************************************************************************/
1004 void AttsDynAddAttrConst(void *pSvcHandle, const uint8_t *pUuid, const uint8_t *pValue,
1005  const uint16_t len, uint8_t settings, uint8_t permissions);
1006 /**@}*/
1007 
1008 /** \name ATT Server Testing
1009  *
1010  */
1011 /**@{*/
1012 /*************************************************************************************************/
1013 /*!
1014  * \brief For testing purposes only.
1015  *
1016  * \param status ATT status
1017  *
1018  * \return None.
1019  */
1020 /*************************************************************************************************/
1021 void AttsErrorTest(uint8_t status);
1022 /**@}*/
1023 /*! \} */ /* STACK_ATTS_API */
1024 
1025 /*! \addtogroup STACK_ATTC_API
1026  * \{ */
1027 /** \name ATT Client Functions
1028  *
1029  */
1030 /**@{*/
1031 /*************************************************************************************************/
1032 /*!
1033  * \brief Initialize ATT client.
1034  *
1035  * \return None.
1036  */
1037 /*************************************************************************************************/
1038 void AttcInit(void);
1039 
1040 /*************************************************************************************************/
1041 /*!
1042  * \brief Initialize ATT client for data signing.
1043  *
1044  * \return None.
1045  */
1046 /*************************************************************************************************/
1047 void AttcSignInit(void);
1048 
1049 /*************************************************************************************************/
1050 /*!
1051  * \brief Initiate an attribute protocol Find Information Request.
1052  *
1053  * \param connId DM connection ID.
1054  * \param startHandle Attribute start handle.
1055  * \param endHandle Attribute end handle.
1056  * \param continuing TRUE if ATTC continues sending requests until complete.
1057  *
1058  * \return None.
1059  */
1060 /*************************************************************************************************/
1061 void AttcFindInfoReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle, bool_t continuing);
1062 
1063 /*************************************************************************************************/
1064 /*!
1065  * \brief Initiate an attribute protocol Find By Type Value Request.
1066  *
1067  * \param connId DM connection ID.
1068  * \param startHandle Attribute start handle.
1069  * \param endHandle Attribute end handle.
1070  * \param uuid16 16-bit UUID to find.
1071  * \param valueLen Length of value data.
1072  * \param pValue Pointer to value data.
1073  * \param continuing TRUE if ATTC continues sending requests until complete.
1074  *
1075  * \return None.
1076  */
1077 /*************************************************************************************************/
1078 void AttcFindByTypeValueReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle,
1079  uint16_t uuid16, uint16_t valueLen, uint8_t *pValue, bool_t continuing);
1080 
1081 /*************************************************************************************************/
1082 /*!
1083  * \brief Initiate an attribute protocol Read By Type Request.
1084  *
1085  * \param connId DM connection ID.
1086  * \param startHandle Attribute start handle.
1087  * \param endHandle Attribute end handle.
1088  * \param uuidLen Length of UUID (2 or 16).
1089  * \param pUuid Pointer to UUID data.
1090  * \param continuing TRUE if ATTC continues sending requests until complete.
1091  *
1092  * \return None.
1093  */
1094 /*************************************************************************************************/
1095 void AttcReadByTypeReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle,
1096  uint8_t uuidLen, uint8_t *pUuid, bool_t continuing);
1097 
1098 /*************************************************************************************************/
1099 /*!
1100  * \brief Initiate an attribute protocol Read Request.
1101  *
1102  * \param connId DM connection ID.
1103  * \param handle Attribute handle.
1104  *
1105  * \return None.
1106  */
1107 /*************************************************************************************************/
1108 void AttcReadReq(dmConnId_t connId, uint16_t handle);
1109 
1110 /*************************************************************************************************/
1111 /*!
1112  * \brief Initiate an attribute protocol Read Long Request.
1113  *
1114  * \param connId DM connection ID.
1115  * \param handle Attribute handle.
1116  * \param offset Read attribute data starting at this offset.
1117  * \param continuing TRUE if ATTC continues sending requests until complete.
1118  *
1119  * \return None.
1120  */
1121 /*************************************************************************************************/
1122 void AttcReadLongReq(dmConnId_t connId, uint16_t handle, uint16_t offset, bool_t continuing);
1123 
1124 /*************************************************************************************************/
1125 /*!
1126  * \brief Initiate an attribute protocol Read Multiple Request.
1127  *
1128  * \param connId DM connection ID.
1129  * \param numHandles Number of handles in attribute handle list.
1130  * \param pHandles List of attribute handles.
1131  *
1132  * \return None.
1133  */
1134 /*************************************************************************************************/
1135 void AttcReadMultipleReq(dmConnId_t connId, uint8_t numHandles, uint16_t *pHandles);
1136 
1137 /*************************************************************************************************/
1138 /*!
1139  * \brief Initiate an attribute protocol Read By Group Type Request.
1140  *
1141  * \param connId DM connection ID.
1142  * \param startHandle Attribute start handle.
1143  * \param endHandle Attribute end handle.
1144  * \param uuidLen Length of UUID (2 or 16).
1145  * \param pUuid Pointer to UUID data.
1146  * \param continuing TRUE if ATTC continues sending requests until complete.
1147  *
1148  * \return None.
1149  */
1150 /*************************************************************************************************/
1151 void AttcReadByGroupTypeReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle,
1152  uint8_t uuidLen, uint8_t *pUuid, bool_t continuing);
1153 
1154 /*************************************************************************************************/
1155 /*!
1156  * \brief Initiate an attribute protocol Write Request.
1157  *
1158  * \param connId DM connection ID.
1159  * \param handle Attribute handle.
1160  * \param valueLen Length of value data.
1161  * \param pValue Pointer to value data.
1162  *
1163  * \return None.
1164  */
1165 /*************************************************************************************************/
1166 void AttcWriteReq(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
1167 
1168 /*************************************************************************************************/
1169 /*!
1170  * \brief Initiate an attribute protocol Write Command.
1171  *
1172  * \param connId DM connection ID.
1173  * \param handle Attribute handle.
1174  * \param valueLen Length of value data.
1175  * \param pValue Pointer to value data.
1176  *
1177  * \return None.
1178  */
1179 /*************************************************************************************************/
1180 void AttcWriteCmd(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
1181 
1182 /*************************************************************************************************/
1183 /*!
1184  * \brief Initiate an attribute protocol signed Write Command.
1185  *
1186  * \param connId DM connection ID.
1187  * \param handle Attribute handle.
1188  * \param signCounter Value of the sign counter.
1189  * \param valueLen Length of value data.
1190  * \param pValue Pointer to value data.
1191  *
1192  * \return None.
1193  */
1194 /*************************************************************************************************/
1195 void AttcSignedWriteCmd(dmConnId_t connId, uint16_t handle, uint32_t signCounter,
1196  uint16_t valueLen, uint8_t *pValue);
1197 
1198 /*************************************************************************************************/
1199 /*!
1200  * \brief Initiate an attribute protocol Prepare Write Request.
1201  *
1202  * \param connId DM connection ID.
1203  * \param handle Attribute handle.
1204  * \param offset Write attribute data starting at this offset.
1205  * \param valueLen Length of value data.
1206  * \param pValue Pointer to value data.
1207  * \param valueByRef TRUE if pValue data is accessed by reference rather than copied.
1208  * \param continuing TRUE if ATTC continues sending requests until complete.
1209  *
1210  * \return None.
1211  */
1212 /*************************************************************************************************/
1213 void AttcPrepareWriteReq(dmConnId_t connId, uint16_t handle, uint16_t offset, uint16_t valueLen,
1214  uint8_t *pValue, bool_t valueByRef, bool_t continuing);
1215 
1216 /*************************************************************************************************/
1217 /*!
1218  * \brief Initiate an attribute protocol Execute Write Request.
1219  *
1220  * \param connId DM connection ID.
1221  * \param writeAll TRUE to write all queued writes, FALSE to cancel all queued writes.
1222  *
1223  * \return None.
1224  */
1225 /*************************************************************************************************/
1226 void AttcExecuteWriteReq(dmConnId_t connId, bool_t writeAll);
1227 
1228 /*************************************************************************************************/
1229 /*!
1230  * \brief Cancel an attribute protocol request in progress.
1231  *
1232  * \param connId DM connection ID.
1233  *
1234  * \return None.
1235  */
1236 /*************************************************************************************************/
1237 void AttcCancelReq(dmConnId_t connId);
1238 
1239 /*************************************************************************************************/
1240 /*!
1241  * \brief This utility function discovers the given service on a peer device. Function
1242  * AttcFindByTypeValueReq() is called to initiate the discovery procedure.
1243  *
1244  * \param connId DM connection ID.
1245  * \param pCb Pointer to discovery control block.
1246  * \param uuidLen Length of service UUID (2 or 16).
1247  * \param pUuid Pointer to service UUID.
1248  *
1249  * \return None.
1250  */
1251 /*************************************************************************************************/
1252 void AttcDiscService(dmConnId_t connId, attcDiscCb_t *pCb, uint8_t uuidLen, uint8_t *pUuid);
1253 
1254 /*************************************************************************************************/
1255 /*!
1256  * \brief This utility function processes a service discovery result. It should be called
1257  * when an \ref ATTC_FIND_BY_TYPE_VALUE_RSP callback event is received after service
1258  * discovery is initiated by calling AttcDiscService().
1259  *
1260  * \param pCb Pointer to discovery control block.
1261  * \param pMsg ATT callback event message.
1262  *
1263  * \return ATT_SUCCESS if successful otherwise error.
1264  */
1265 /*************************************************************************************************/
1266 uint8_t AttcDiscServiceCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg);
1267 
1268 /*************************************************************************************************/
1269 /*!
1270  * \brief This utility function starts characteristic and characteristic descriptor
1271  * discovery for a service on a peer device. The service must have been previously
1272  * discovered by calling AttcDiscService() and AttcDiscServiceCmpl().
1273  *
1274  * \param connId DM connection ID.
1275  * \param pCb Pointer to discovery control block.
1276  *
1277  * \return None.
1278  */
1279 /*************************************************************************************************/
1280 void AttcDiscCharStart(dmConnId_t connId, attcDiscCb_t *pCb);
1281 
1282 /*************************************************************************************************/
1283 /*!
1284  * \brief This utility function processes a characteristic discovery result. It should be
1285  * called when an \ref ATTC_READ_BY_TYPE_RSP or \ref ATTC_FIND_INFO_RSP callback event is
1286  * received after characteristic discovery is initiated by calling AttcDiscCharStart().
1287  *
1288  * \param pCb Pointer to discovery control block.
1289  * \param pMsg ATT callback event message.
1290  *
1291  * \return ATT_CONTINUING if successful and the discovery procedure is continuing.
1292  * ATT_SUCCESS if the discovery procedure completed successfully.
1293  * Otherwise the discovery procedure failed.
1294  */
1295 /*************************************************************************************************/
1296 uint8_t AttcDiscCharCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg);
1297 
1298 /*************************************************************************************************/
1299 /*!
1300  * \brief This utility function starts service include discovery for a service on a peer device.
1301  * The service must have been previously discovered by calling AttcDiscService() and
1302 * AttcDiscServiceCmpl().
1303  *
1304  * \param connId DM connection ID.
1305  * \param pCb Pointer to service discovery control block.
1306  *
1307  * \return None.
1308  */
1309 /*************************************************************************************************/
1310 void AttcDiscIncSvcStart(dmConnId_t connId, attcDiscCb_t *pCb);
1311 
1312 /*************************************************************************************************/
1313 /*!
1314  * \brief This utility function processes a service include discovery result. It should be
1315  * called when an ATTC_READ_BY_TYPE_RSP allback event is received after service include
1316  * discovery is initiated by calling AttcDiscIncSvcStart().
1317  *
1318  * \param pCb Pointer to service discovery control block.
1319  * \param pMsg ATT callback event message.
1320  *
1321  * \return ATT_CONTINUING if successful and discovery procedure is continuing.
1322  * ATT_SUCCESS if discovery procedure completed successfully.
1323  * Otherwise the discovery procedure failed.
1324  */
1325 /*************************************************************************************************/
1326 uint8_t AttcDiscIncSvcCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg);
1327 
1328 /*************************************************************************************************/
1329 /*!
1330  * \brief This utility function starts characteristic configuration for characteristics on a
1331  * peer device. The characteristics must have been previously discovered by calling
1332  * AttcDiscCharStart() and AttcDiscCharCmpl().
1333  *
1334  * \param connId DM connection ID.
1335  * \param pCb Pointer to discovery control block.
1336  *
1337  * \return ATT_CONTINUING if successful and configuration procedure is continuing.
1338  * ATT_SUCCESS if nothing to configure.
1339  */
1340 /*************************************************************************************************/
1341 uint8_t AttcDiscConfigStart(dmConnId_t connId, attcDiscCb_t *pCb);
1342 
1343 /*************************************************************************************************/
1344 /*!
1345  * \brief This utility function initiates the next characteristic configuration procedure.
1346  * It should be called when an \ref ATTC_READ_RSP or \ref ATTC_WRITE_RSP callback event
1347  * is received after characteristic configuration is initiated by calling
1348  * AttcDiscConfigStart().
1349  *
1350  * \param connId DM connection ID.
1351  * \param pCb Pointer to discovery control block.
1352  *
1353  * \return ATT_CONTINUING if successful and configuration procedure is continuing.
1354  * ATT_SUCCESS if configuration procedure completed successfully.
1355  */
1356 /*************************************************************************************************/
1357 uint8_t AttcDiscConfigCmpl(dmConnId_t connId, attcDiscCb_t *pCb);
1358 
1359 /*************************************************************************************************/
1360 /*!
1361  * \brief This utility function resumes the characteristic configuration procedure. It can
1362  * be called when an \ref ATTC_READ_RSP or \ref ATTC_WRITE_RSP callback event is received
1363  * with failure status to attempt the read or write procedure again.
1364  *
1365  * \param connId DM connection ID.
1366  * \param pCb Pointer to discovery control block.
1367  *
1368  * \return ATT_CONTINUING if successful and configuration procedure is continuing.
1369  * ATT_SUCCESS if configuration procedure completed successfully.
1370  */
1371 /*************************************************************************************************/
1372 uint8_t AttcDiscConfigResume(dmConnId_t connId, attcDiscCb_t *pCb);
1373 
1374 /*************************************************************************************************/
1375 /*!
1376  * \brief Initiate an attribute protocol Exchange MTU Request.
1377  *
1378  * \param connId DM connection ID.
1379  * \param mtu Attribute protocol MTU.
1380  *
1381  * \return None.
1382  *
1383  * \note The Exchange MTU Request will be initiated automatically on a master connection.
1384  *
1385  * \note This API can be used by the application to initiate an Exchange MTU Request on slave
1386  * connections.
1387  */
1388 /*************************************************************************************************/
1389 void AttcMtuReq(dmConnId_t connId, uint16_t mtu);
1390 
1391 /*************************************************************************************************/
1392 /*!
1393  * \brief Set automatic Indication Confirmations sent from this ATT Client.
1394  *
1395  * \param enable \ref TRUE to enable automatic confirmations (default), \ref FALSE to disable.
1396  *
1397  * \return None.
1398  */
1399 /*************************************************************************************************/
1400 void AttcSetAutoConfirm(bool_t enable);
1401 
1402 /*************************************************************************************************/
1403 /*!
1404  * \brief Send an attribute protocol indication confirmation.
1405  *
1406  * \param connId DM connection ID.
1407  *
1408  * \return None.
1409  */
1410 /*************************************************************************************************/
1411 void AttcIndConfirm(dmConnId_t connId);
1412 /**@}*/
1413 /*! \} */ /* STACK_ATTC_API */
1414 
1415 
1416 #ifdef __cplusplus
1417 };
1418 #endif
1419 
1420 #endif /* ATT_API_H */
ATTS_CLIENT_CHANGE_PENDING_AWARE
Definition: att_api.h:141
AttsCccGet
uint16_t AttsCccGet(dmConnId_t connId, uint8_t idx)
Get the value of a client characteristic configuration descriptor by its index. If not found...
ATT_CBACK_START
#define ATT_CBACK_START
ATT callback event starting value.
Definition: att_api.h:98
AttcReadLongReq
void AttcReadLongReq(dmConnId_t connId, uint16_t handle, uint16_t offset, bool_t continuing)
Initiate an attribute protocol Read Long Request.
ATTC_READ_RSP
Read response.
Definition: att_api.h:106
AttcReadMultipleReq
void AttcReadMultipleReq(dmConnId_t connId, uint8_t numHandles, uint16_t *pHandles)
Initiate an attribute protocol Read Multiple Request.
dmConnId_t
uint8_t dmConnId_t
Connection identifier.
Definition: dm_api.h:588
AttsContinueWriteReq
void AttsContinueWriteReq(dmConnId_t connId, uint16_t handle, uint8_t status)
Send a response to a pending write request. For use with ATT_RSP_PENDING.
attEvt_t
ATT callback event.
Definition: att_api.h:184
AttsDynDeleteGroup
void AttsDynDeleteGroup(void *pSvcHandle)
Dynamically delete an ATT Service at runtime.
AttsCsfWriteFeatures
uint8_t AttsCsfWriteFeatures(dmConnId_t connId, uint16_t offset, uint16_t valueLen, uint8_t *pValue)
GATT write of client supported feature characteristic value.
AttsCsfGetFeatures
void AttsCsfGetFeatures(dmConnId_t connId, uint8_t *pCsfOut, uint8_t pCsfOutLen)
Get client supported feature record.
AttcReadByGroupTypeReq
void AttcReadByGroupTypeReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle, uint8_t uuidLen, uint8_t *pUuid, bool_t continuing)
Initiate an attribute protocol Read By Group Type Request.
ATTC_WRITE_RSP
Write response.
Definition: att_api.h:110
AttcDiscServiceCmpl
uint8_t AttcDiscServiceCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg)
This utility function processes a service discovery result. It should be called when an ATTC_FIND_BY_...
ATTC_READ_BY_TYPE_RSP
Read by type value response.
Definition: att_api.h:105
AttcDiscCharStart
void AttcDiscCharStart(dmConnId_t connId, attcDiscCb_t *pCb)
This utility function starts characteristic and characteristic descriptor discovery for a service on ...
ATTC_READ_MULTIPLE_RSP
Read multiple response.
Definition: att_api.h:108
AttsRemoveGroup
void AttsRemoveGroup(uint16_t startHandle)
Remove an attribute group from the attribute server.
AttsGetSignCounter
uint32_t AttsGetSignCounter(dmConnId_t connId)
Get the current value peer&#39;s sign counter on this connection. This function is typically called from ...
AttsAuthorRegister
void AttsAuthorRegister(attsAuthorCback_t cback)
Register an authorization callback with the attribute server.
AttRegister
void AttRegister(attCback_t cback)
Register a callback with ATT. This callback will be used for messages from both ATTC and ATTS...
AttsSetSignCounter
void AttsSetSignCounter(dmConnId_t connId, uint32_t signCounter)
Set the peer&#39;s sign counter on this connection. This function is typically called from the ATT connec...
attsWriteCback_t
uint8_t(* attsWriteCback_t)(dmConnId_t connId, uint16_t handle, uint8_t operation, uint16_t offset, uint16_t len, uint8_t *pValue, attsAttr_t *pAttr)
Attribute group write callback.
Definition: att_api.h:272
AttsCccRegister
void AttsCccRegister(uint8_t setLen, attsCccSet_t *pSet, attsCccCback_t cback)
Register the utility service for managing client characteristic configuration descriptors. This function is typically called once on system initialization.
AttcDiscConfigStart
uint8_t AttcDiscConfigStart(dmConnId_t connId, attcDiscCb_t *pCb)
This utility function starts characteristic configuration for characteristics on a peer device...
AttsDynAddAttr
void AttsDynAddAttr(void *pSvcHandle, const uint8_t *pUuid, const uint8_t *pValue, uint16_t len, const uint16_t maxLen, uint8_t settings, uint8_t permissions)
Dynamically add an attribute to a dynamic ATT Services at runtime.
AttsCsfRegister
void AttsCsfRegister(attsCsfWriteCback_t writeCback)
Register callback.
AttsCsfSetClientChangeAwareState
void AttsCsfSetClientChangeAwareState(dmConnId_t connId, uint8_t state)
Update a client&#39;s state of awareness to a change in the database.
AttcSignedWriteCmd
void AttcSignedWriteCmd(dmConnId_t connId, uint16_t handle, uint32_t signCounter, uint16_t valueLen, uint8_t *pValue)
Initiate an attribute protocol signed Write Command.
AttsCccClearTable
void AttsCccClearTable(dmConnId_t connId)
Clear and deallocate the client characteristic configuration descriptor value table for a connection...
pAttCfg
attCfg_t * pAttCfg
Configuration pointer.
ATTC_FIND_INFO_RSP
ATT callback event starting value.
Definition: att_api.h:103
attCfg_t
ATT run-time configurable parameters.
Definition: att_api.h:152
ATT_MTU_UPDATE_IND
Negotiated MTU value.
Definition: att_api.h:124
AttsDynInit
void AttsDynInit(void)
Initialize the Dynamic ATT Service subsystem.
attCback_t
void(* attCback_t)(attEvt_t *pEvt)
ATT event callback type.
Definition: att_api.h:203
attsGroup_tag::startHandle
uint16_t startHandle
The handle of the first attribute in this group.
Definition: att_api.h:318
AttcIndConfirm
void AttcIndConfirm(dmConnId_t connId)
Send an attribute protocol indication confirmation.
AttcFindByTypeValueReq
void AttcFindByTypeValueReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle, uint16_t uuid16, uint16_t valueLen, uint8_t *pValue, bool_t continuing)
Initiate an attribute protocol Find By Type Value Request.
attsGroup_tag::writeCback
attsWriteCback_t writeCback
Write callback function.
Definition: att_api.h:317
attsGroup_tag::readCback
attsReadCback_t readCback
Read callback function.
Definition: att_api.h:316
AttcExecuteWriteReq
void AttcExecuteWriteReq(dmConnId_t connId, bool_t writeAll)
Initiate an attribute protocol Execute Write Request.
attcDiscChar_tag
ATT client structure for characteristic and descriptor discovery.
Definition: att_api.h:348
AttsAddGroup
void AttsAddGroup(attsGroup_t *pGroup)
Add an attribute group to the attribute server.
AttcSetAutoConfirm
void AttcSetAutoConfirm(bool_t enable)
Set automatic Indication Confirmations sent from this ATT Client.
attsGroup_tag
Attribute group.
Definition: att_api.h:312
AttcInit
void AttcInit(void)
Initialize ATT client.
ATTS_MULT_VALUE_CNF
Handle multiple value confirmation.
Definition: att_api.h:120
AttcWriteCmd
void AttcWriteCmd(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Initiate an attribute protocol Write Command.
ATTC_WRITE_CMD_RSP
Write command response.
Definition: att_api.h:111
ATTC_MULT_VALUE_NTF
Read multiple value notification.
Definition: att_api.h:117
attsCccCback_t
void(* attsCccCback_t)(attsCccEvt_t *pEvt)
ATTS client characteristic configuration callback.
Definition: att_api.h:395
AttsSignInit
void AttsSignInit(void)
Initialize ATT server for data signing.
AttsInit
void AttsInit(void)
Initialize ATT server.
AttsHandleValueNtf
void AttsHandleValueNtf(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Send an attribute protocol Handle Value Notification.
AttcDiscCharCmpl
uint8_t AttcDiscCharCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg)
This utility function processes a characteristic discovery result. It should be called when an ATTC_R...
attsAuthorCback_t
uint8_t(* attsAuthorCback_t)(dmConnId_t connId, uint8_t permit, uint16_t handle)
ATTS authorization callback type.
Definition: att_api.h:290
AttcSignInit
void AttcSignInit(void)
Initialize ATT client for data signing.
ATT_EATT_RECONFIG_CMPL_IND
EATT Reconfigure complete.
Definition: att_api.h:126
AttMsgFree
void AttMsgFree(void *pMsg, uint8_t opcode)
Free an ATT message buffer allocated with AttMsgAlloc().
eattCfg_t
EATT run-time configurable parameters.
Definition: att_api.h:161
attsGroup_t
struct attsGroup_tag attsGroup_t
Attribute group.
attClientAwareStates
attClientAwareStates
client&#39;s awareness to database change.
Definition: att_api.h:138
ATTC_HANDLE_VALUE_NTF
Handle value notification.
Definition: att_api.h:114
AttcCancelReq
void AttcCancelReq(dmConnId_t connId)
Cancel an attribute protocol request in progress.
AttsCalculateDbHash
void AttsCalculateDbHash(void)
Calculate database hash from the GATT database.
ATTC_HANDLE_VALUE_IND
Handle value indication.
Definition: att_api.h:115
AttsHashDatabaseString
bool_t AttsHashDatabaseString(uint8_t *pKey, uint8_t *pMsg, uint16_t msgLen)
Create hash from the database string.
pEattCfg
eattCfg_t * pEattCfg
Enhanced configuration pointer.
AttcFindInfoReq
void AttcFindInfoReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle, bool_t continuing)
Initiate an attribute protocol Find Information Request.
AttcDiscIncSvcStart
void AttcDiscIncSvcStart(dmConnId_t connId, attcDiscCb_t *pCb)
This utility function starts service include discovery for a service on a peer device. The service must have been previously discovered by calling AttcDiscService() and AttcDiscServiceCmpl().
ATTC_READ_LONG_RSP
Read long response.
Definition: att_api.h:107
AttcDiscConfigCmpl
uint8_t AttcDiscConfigCmpl(dmConnId_t connId, attcDiscCb_t *pCb)
This utility function initiates the next characteristic configuration procedure. It should be called ...
AttsCccEnabled
uint16_t AttsCccEnabled(dmConnId_t connId, uint8_t idx)
Check if a client characteristic configuration descriptor is enabled and if the characteristic&#39;s secu...
AttsGetAttr
uint8_t AttsGetAttr(uint16_t handle, uint16_t *pLen, uint8_t **pValue)
Get an attribute value in the attribute server.
attsCccEvt_t
ATTS client characteristic configuration callback structure.
Definition: att_api.h:331
AttsHandleValueInd
void AttsHandleValueInd(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Send an attribute protocol Handle Value Indication.
AttsCsfConnOpen
void AttsCsfConnOpen(dmConnId_t connId, uint8_t changeAwareState, uint8_t *pCsf)
Initialize the client supported features for a connection.
attsGroup_tag::pNext
struct attsGroup_tag * pNext
For internal use only.
Definition: att_api.h:314
dmCback_t
void(* dmCback_t)(dmEvt_t *pDmEvt)
Callback type.
Definition: dm_api.h:868
AttsDynAddAttrConst
void AttsDynAddAttrConst(void *pSvcHandle, const uint8_t *pUuid, const uint8_t *pValue, const uint16_t len, uint8_t settings, uint8_t permissions)
Dynamically add an attribute with a constant value to a dynamic ATT Services at runtime.
attsCccSet_t
Client characteristc configuration settings.
Definition: att_api.h:323
AttsDynCreateGroup
void * AttsDynCreateGroup(uint16_t startHandle, uint16_t endHandle)
Dynamically create an ATT Service at runtime.
ATTC_PREPARE_WRITE_RSP
Prepare write response.
Definition: att_api.h:112
attcDiscCb_t
ATT client discovery control block.
Definition: att_api.h:363
attsAttr_t
Attribute structure.
Definition: att_api.h:214
AttcWriteReq
void AttcWriteReq(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Initiate an attribute protocol Write Request.
dm_api.h
Device Manager subsystem API.
AttsHandleValueIndZeroCpy
void AttsHandleValueIndZeroCpy(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Send an attribute protocol Handle Value Indication without copying the attribute value data...
AttcMtuReq
void AttcMtuReq(dmConnId_t connId, uint16_t mtu)
Initiate an attribute protocol Exchange MTU Request.
ATTC_READ_MULT_VAR_RSP
Read multiple variable length response.
Definition: att_api.h:116
ATTS_CLIENT_CHANGE_AWARE_DB_READ_PENDING
Definition: att_api.h:142
ATTS_CLIENT_CHANGE_UNAWARE
Definition: att_api.h:143
AttGetMtu
uint16_t AttGetMtu(dmConnId_t connId)
Get the attribute protocol MTU of a connection.
ATTC_READ_BY_GROUP_TYPE_RSP
Read group type response.
Definition: att_api.h:109
AttsIndInit
void AttsIndInit(void)
Initialize ATT server for indications/notifications.
attsReadCback_t
uint8_t(* attsReadCback_t)(dmConnId_t connId, uint16_t handle, uint8_t operation, uint16_t offset, attsAttr_t *pAttr)
Attribute group read callback.
Definition: att_api.h:253
AttMsgAlloc
void * AttMsgAlloc(uint16_t len, uint8_t opcode)
Allocate an ATT message buffer to be sent with the ATT attribute protocol zero-copy APIs...
attsGroup_tag::pAttr
attsAttr_t * pAttr
Pointer to attribute list for this group.
Definition: att_api.h:315
attsCsfRec_t
Client supported features record structure.
Definition: att_api.h:225
AttcReadByTypeReq
void AttcReadByTypeReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle, uint8_t uuidLen, uint8_t *pUuid, bool_t continuing)
Initiate an attribute protocol Read By Type Request.
AttcDiscConfigResume
uint8_t AttcDiscConfigResume(dmConnId_t connId, attcDiscCb_t *pCb)
This utility function resumes the characteristic configuration procedure. It can be called when an AT...
AttsSetAttr
uint8_t AttsSetAttr(uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Set an attribute value in the attribute server.
AttcPrepareWriteReq
void AttcPrepareWriteReq(dmConnId_t connId, uint16_t handle, uint16_t offset, uint16_t valueLen, uint8_t *pValue, bool_t valueByRef, bool_t continuing)
Initiate an attribute protocol Prepare Write Request.
AttsGetCccTableLen
uint8_t AttsGetCccTableLen(void)
Get number of CCC entries in table.
wsf_timer.h
Timer service.
AttsDynRegister
void AttsDynRegister(void *pSvcHandle, attsReadCback_t readCback, attsWriteCback_t writeCback)
Register callback functions for a dynamic ATT Service at runtime.
att_defs.h
Attribute protocol constants and definitions from the Bluetooth specification.
att_uuid.h
Attribute protocol UUIDs from the Bluetooth specification.
wsfTimerTicks_t
uint32_t wsfTimerTicks_t
Timer ticks data type.
Definition: wsf_timer.h:50
ATTC_EXECUTE_WRITE_RSP
Execute write response.
Definition: att_api.h:113
AttcDiscIncSvcCmpl
uint8_t AttcDiscIncSvcCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg)
This utility function processes a service include discovery result. It should be called when an ATTC_...
attsCsfWriteCback_t
void(* attsCsfWriteCback_t)(dmConnId_t connId, uint8_t changeAwareState, uint8_t *pCsf)
ATTS client supported features write callback type.
Definition: att_api.h:303
attcDiscCfg_t
ATT client structure for characteristic and descriptor configuration.
Definition: att_api.h:355
attsGroup_tag::endHandle
uint16_t endHandle
The handle of the last attribute in this group.
Definition: att_api.h:319
ATT_EATT_CONN_CMPL_IND
EATT Connect channels complete.
Definition: att_api.h:125
AttsSetCsrk
void AttsSetCsrk(dmConnId_t connId, uint8_t *pCsrk, bool_t authenticated)
Set the peer&#39;s data signing key on this connection. This function is typically called from the ATT co...
attcDiscChar_t
struct attcDiscChar_tag attcDiscChar_t
ATT client structure for characteristic and descriptor discovery.
wsfMsgHdr_t
Common message structure passed to event handler.
Definition: wsf_os.h:106
ATTS_CCC_STATE_IND
Client chracteristic configuration state change.
Definition: att_api.h:121
ATTS_CLIENT_CHANGE_AWARE
Definition: att_api.h:140
AttsCccSet
void AttsCccSet(dmConnId_t connId, uint8_t idx, uint16_t value)
Set the value of a client characteristic configuration descriptor by its index.
AttsCsfInit
void AttsCsfInit(void)
Initialize ATTS client supported features module.
AttsCsfGetClientChangeAwareState
uint8_t AttsCsfGetClientChangeAwareState(dmConnId_t connId)
Get client state of awareness to a change in the database.
AttcReadReq
void AttcReadReq(dmConnId_t connId, uint16_t handle)
Initiate an attribute protocol Read Request.
ATTS_HANDLE_VALUE_CNF
Handle value confirmation.
Definition: att_api.h:119
AttConnRegister
void AttConnRegister(dmCback_t cback)
Register a connection callback with ATT. The callback is typically used to manage the attribute serve...
AttsHandleValueNtfZeroCpy
void AttsHandleValueNtfZeroCpy(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue)
Send an attribute protocol Handle Value Notification without copying the attribute value data...
ATTS_DB_HASH_CALC_CMPL_IND
Database hash calculation complete.
Definition: att_api.h:122
cfg_stack.h
Stack configuration.
AttsErrorTest
void AttsErrorTest(uint8_t status)
For testing purposes only.
ATTC_FIND_BY_TYPE_VALUE_RSP
Find by type value response.
Definition: att_api.h:104
AttcDiscService
void AttcDiscService(dmConnId_t connId, attcDiscCb_t *pCb, uint8_t uuidLen, uint8_t *pUuid)
This utility function discovers the given service on a peer device. Function AttcFindByTypeValueReq()...
AttsCccInitTable
void AttsCccInitTable(dmConnId_t connId, uint16_t *pCccTbl)
Initialize the client characteristic configuration descriptor value table for a connection. The table is initialized with the values from pCccTbl. If pCccTbl is NULL the table will be initialized to zero.
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