1 /******************************************************************************
2 *
3 * Copyright (C) 2010-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * This is the implementation of the API for GATT module of BTA.
22 *
23 ******************************************************************************/
24
25 #include "bt_target.h"
26
27 #if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE)
28
29 #include <string.h>
30 #include "bt_common.h"
31 #include "bta_sys.h"
32 #include "bta_gatt_api.h"
33 #include "bta_gattc_int.h"
34
35 /*****************************************************************************
36 ** Constants
37 *****************************************************************************/
38
39 static const tBTA_SYS_REG bta_gattc_reg =
40 {
41 bta_gattc_hdl_event,
42 BTA_GATTC_Disable
43 };
44
45
46 /*******************************************************************************
47 **
48 ** Function BTA_GATTC_Disable
49 **
50 ** Description This function is called to disable GATTC module
51 **
52 ** Parameters None.
53 **
54 ** Returns None
55 **
56 *******************************************************************************/
BTA_GATTC_Disable(void)57 void BTA_GATTC_Disable(void)
58 {
59 if (bta_sys_is_register(BTA_ID_GATTC) == FALSE)
60 {
61 APPL_TRACE_WARNING("GATTC Module not enabled/already disabled");
62 return;
63 }
64
65 BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
66 p_buf->event = BTA_GATTC_API_DISABLE_EVT;
67
68 bta_sys_sendmsg(p_buf);
69 bta_sys_deregister(BTA_ID_GATTC);
70 }
71
72 /*******************************************************************************
73 **
74 ** Function BTA_GATTC_AppRegister
75 **
76 ** Description This function is called to register application callbacks
77 ** with BTA GATTC module.
78 **
79 ** Parameters p_app_uuid - applicaiton UUID
80 ** p_client_cb - pointer to the application callback function.
81 **
82 ** Returns None
83 **
84 *******************************************************************************/
BTA_GATTC_AppRegister(tBT_UUID * p_app_uuid,tBTA_GATTC_CBACK * p_client_cb)85 void BTA_GATTC_AppRegister(tBT_UUID *p_app_uuid, tBTA_GATTC_CBACK *p_client_cb)
86 {
87 tBTA_GATTC_API_REG *p_buf =
88 (tBTA_GATTC_API_REG *)osi_malloc(sizeof(tBTA_GATTC_API_REG));
89
90 if (bta_sys_is_register(BTA_ID_GATTC) == FALSE)
91 bta_sys_register(BTA_ID_GATTC, &bta_gattc_reg);
92
93 p_buf->hdr.event = BTA_GATTC_API_REG_EVT;
94 if (p_app_uuid != NULL)
95 memcpy(&p_buf->app_uuid, p_app_uuid, sizeof(tBT_UUID));
96 p_buf->p_cback = p_client_cb;
97
98 bta_sys_sendmsg(p_buf);
99 }
100
101 /*******************************************************************************
102 **
103 ** Function BTA_GATTC_AppDeregister
104 **
105 ** Description This function is called to deregister an application
106 ** from BTA GATTC module.
107 **
108 ** Parameters client_if - client interface identifier.
109 **
110 ** Returns None
111 **
112 *******************************************************************************/
BTA_GATTC_AppDeregister(tBTA_GATTC_IF client_if)113 void BTA_GATTC_AppDeregister(tBTA_GATTC_IF client_if)
114 {
115 tBTA_GATTC_API_DEREG *p_buf =
116 (tBTA_GATTC_API_DEREG *)osi_malloc(sizeof(tBTA_GATTC_API_DEREG));
117
118 p_buf->hdr.event = BTA_GATTC_API_DEREG_EVT;
119 p_buf->client_if = client_if;
120
121 bta_sys_sendmsg(p_buf);
122 }
123
124 /*******************************************************************************
125 **
126 ** Function BTA_GATTC_Open
127 **
128 ** Description Open a direct connection or add a background auto connection
129 ** bd address
130 **
131 ** Parameters client_if: server interface.
132 ** remote_bda: remote device BD address.
133 ** is_direct: direct connection or background auto connection
134 ** transport: Transport to be used for GATT connection (BREDR/LE)
135 **
136 ** Returns void
137 **
138 *******************************************************************************/
BTA_GATTC_Open(tBTA_GATTC_IF client_if,BD_ADDR remote_bda,BOOLEAN is_direct,tBTA_GATT_TRANSPORT transport)139 void BTA_GATTC_Open(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
140 BOOLEAN is_direct, tBTA_GATT_TRANSPORT transport)
141 {
142 tBTA_GATTC_API_OPEN *p_buf =
143 (tBTA_GATTC_API_OPEN *) osi_malloc(sizeof(tBTA_GATTC_API_OPEN));
144
145 p_buf->hdr.event = BTA_GATTC_API_OPEN_EVT;
146 p_buf->client_if = client_if;
147 p_buf->is_direct = is_direct;
148 p_buf->transport = transport;
149 memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
150
151 bta_sys_sendmsg(p_buf);
152 }
153
154 /*******************************************************************************
155 **
156 ** Function BTA_GATTC_CancelOpen
157 **
158 ** Description Cancel a direct open connection or remove a background auto connection
159 ** bd address
160 **
161 ** Parameters client_if: server interface.
162 ** remote_bda: remote device BD address.
163 ** is_direct: direct connection or background auto connection
164 **
165 ** Returns void
166 **
167 *******************************************************************************/
BTA_GATTC_CancelOpen(tBTA_GATTC_IF client_if,BD_ADDR remote_bda,BOOLEAN is_direct)168 void BTA_GATTC_CancelOpen(tBTA_GATTC_IF client_if, BD_ADDR remote_bda, BOOLEAN is_direct)
169 {
170 tBTA_GATTC_API_CANCEL_OPEN *p_buf =
171 (tBTA_GATTC_API_CANCEL_OPEN *)osi_malloc(sizeof(tBTA_GATTC_API_CANCEL_OPEN));
172
173 p_buf->hdr.event = BTA_GATTC_API_CANCEL_OPEN_EVT;
174 p_buf->client_if = client_if;
175 p_buf->is_direct = is_direct;
176 memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
177
178 bta_sys_sendmsg(p_buf);
179 }
180
181 /*******************************************************************************
182 **
183 ** Function BTA_GATTC_Close
184 **
185 ** Description Close a connection to a GATT server.
186 **
187 ** Parameters conn_id: connectino ID to be closed.
188 **
189 ** Returns void
190 **
191 *******************************************************************************/
BTA_GATTC_Close(UINT16 conn_id)192 void BTA_GATTC_Close(UINT16 conn_id)
193 {
194 BT_HDR *p_buf = (BT_HDR *)osi_malloc(sizeof(BT_HDR));
195
196 p_buf->event = BTA_GATTC_API_CLOSE_EVT;
197 p_buf->layer_specific = conn_id;
198
199 bta_sys_sendmsg(p_buf);
200 }
201
202 /*******************************************************************************
203 **
204 ** Function BTA_GATTC_ConfigureMTU
205 **
206 ** Description Configure the MTU size in the GATT channel. This can be done
207 ** only once per connection.
208 **
209 ** Parameters conn_id: connection ID.
210 ** mtu: desired MTU size to use.
211 **
212 ** Returns void
213 **
214 *******************************************************************************/
BTA_GATTC_ConfigureMTU(UINT16 conn_id,UINT16 mtu)215 void BTA_GATTC_ConfigureMTU (UINT16 conn_id, UINT16 mtu)
216 {
217 tBTA_GATTC_API_CFG_MTU *p_buf =
218 (tBTA_GATTC_API_CFG_MTU *)osi_malloc(sizeof(tBTA_GATTC_API_CFG_MTU));
219
220 p_buf->hdr.event = BTA_GATTC_API_CFG_MTU_EVT;
221 p_buf->hdr.layer_specific = conn_id;
222 p_buf->mtu = mtu;
223
224 bta_sys_sendmsg(p_buf);
225 }
226
227 /*******************************************************************************
228 **
229 ** Function BTA_GATTC_ServiceSearchRequest
230 **
231 ** Description This function is called to request a GATT service discovery
232 ** on a GATT server. This function report service search result
233 ** by a callback event, and followed by a service search complete
234 ** event.
235 **
236 ** Parameters conn_id: connection ID.
237 ** p_srvc_uuid: a UUID of the service application is interested in.
238 ** If Null, discover for all services.
239 **
240 ** Returns None
241 **
242 *******************************************************************************/
BTA_GATTC_ServiceSearchRequest(UINT16 conn_id,tBT_UUID * p_srvc_uuid)243 void BTA_GATTC_ServiceSearchRequest (UINT16 conn_id, tBT_UUID *p_srvc_uuid)
244 {
245 const size_t len = sizeof(tBTA_GATTC_API_SEARCH) + sizeof(tBT_UUID);
246 tBTA_GATTC_API_SEARCH *p_buf = (tBTA_GATTC_API_SEARCH *)osi_calloc(len);
247
248 p_buf->hdr.event = BTA_GATTC_API_SEARCH_EVT;
249 p_buf->hdr.layer_specific = conn_id;
250 if (p_srvc_uuid) {
251 p_buf->p_srvc_uuid = (tBT_UUID *)(p_buf + 1);
252 memcpy(p_buf->p_srvc_uuid, p_srvc_uuid, sizeof(tBT_UUID));
253 } else {
254 p_buf->p_srvc_uuid = NULL;
255 }
256
257 bta_sys_sendmsg(p_buf);
258 }
259
260 /*******************************************************************************
261 **
262 ** Function BTA_GATTC_GetServices
263 **
264 ** Description This function is called to find the services on the given server.
265 **
266 ** Parameters conn_id: connection ID which identify the server.
267 **
268 ** Returns returns list_t of tBTA_GATTC_SERVICE or NULL.
269 **
270 *******************************************************************************/
BTA_GATTC_GetServices(UINT16 conn_id)271 const list_t* BTA_GATTC_GetServices(UINT16 conn_id) {
272 return bta_gattc_get_services(conn_id);
273 }
274
275 /*******************************************************************************
276 **
277 ** Function BTA_GATTC_GetCharacteristic
278 **
279 ** Description This function is called to find the characteristic on the given server.
280 **
281 ** Parameters conn_id - connection ID which identify the server.
282 ** handle - characteristic handle
283 **
284 ** Returns returns pointer to tBTA_GATTC_CHARACTERISTIC or NULL.
285 **
286 *******************************************************************************/
BTA_GATTC_GetCharacteristic(UINT16 conn_id,UINT16 handle)287 const tBTA_GATTC_CHARACTERISTIC* BTA_GATTC_GetCharacteristic(UINT16 conn_id, UINT16 handle) {
288 return bta_gattc_get_characteristic(conn_id, handle);
289 }
290
291 /*******************************************************************************
292 **
293 ** Function BTA_GATTC_GetDescriptor
294 **
295 ** Description This function is called to find the characteristic on the given server.
296 **
297 ** Parameters conn_id - connection ID which identify the server.
298 ** handle - descriptor handle
299 **
300 ** Returns returns pointer to tBTA_GATTC_DESCRIPTOR or NULL.
301 **
302 *******************************************************************************/
BTA_GATTC_GetDescriptor(UINT16 conn_id,UINT16 handle)303 const tBTA_GATTC_DESCRIPTOR* BTA_GATTC_GetDescriptor(UINT16 conn_id, UINT16 handle) {
304 return bta_gattc_get_descriptor(conn_id, handle);
305 }
306
307 /*******************************************************************************
308 **
309 ** Function BTA_GATTC_GetGattDb
310 **
311 ** Description This function is called to get the GATT database.
312 **
313 ** Parameters conn_id: connection ID which identify the server.
314 ** db: output parameter which will contain the GATT database copy.
315 ** Caller is responsible for freeing it.
316 ** count: number of elements in database.
317 **
318 *******************************************************************************/
BTA_GATTC_GetGattDb(UINT16 conn_id,UINT16 start_handle,UINT16 end_handle,btgatt_db_element_t ** db,int * count)319 void BTA_GATTC_GetGattDb(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle,
320 btgatt_db_element_t **db, int *count)
321 {
322 bta_gattc_get_gatt_db(conn_id, start_handle, end_handle, db, count);
323 }
324
325 /*******************************************************************************
326 **
327 ** Function BTA_GATTC_ReadCharacteristic
328 **
329 ** Description This function is called to read a characteristics value
330 **
331 ** Parameters conn_id - connection ID.
332 ** handle - characteritic handle to read.
333 **
334 ** Returns None
335 **
336 *******************************************************************************/
BTA_GATTC_ReadCharacteristic(UINT16 conn_id,UINT16 handle,tBTA_GATT_AUTH_REQ auth_req)337 void BTA_GATTC_ReadCharacteristic(UINT16 conn_id, UINT16 handle, tBTA_GATT_AUTH_REQ auth_req)
338 {
339 tBTA_GATTC_API_READ *p_buf =
340 (tBTA_GATTC_API_READ *)osi_calloc(sizeof(tBTA_GATTC_API_READ));
341
342 p_buf->hdr.event = BTA_GATTC_API_READ_EVT;
343 p_buf->hdr.layer_specific = conn_id;
344 p_buf->auth_req = auth_req;
345 p_buf->handle = handle;
346 p_buf->cmpl_evt = BTA_GATTC_READ_CHAR_EVT;
347
348 bta_sys_sendmsg(p_buf);
349 }
350
351 /*******************************************************************************
352 **
353 ** Function BTA_GATTC_ReadCharDescr
354 **
355 ** Description This function is called to read a descriptor value.
356 **
357 ** Parameters conn_id - connection ID.
358 ** handle - descriptor handle to read.
359 **
360 ** Returns None
361 **
362 *******************************************************************************/
BTA_GATTC_ReadCharDescr(UINT16 conn_id,UINT16 handle,tBTA_GATT_AUTH_REQ auth_req)363 void BTA_GATTC_ReadCharDescr (UINT16 conn_id, UINT16 handle, tBTA_GATT_AUTH_REQ auth_req)
364 {
365 tBTA_GATTC_API_READ *p_buf =
366 (tBTA_GATTC_API_READ *)osi_calloc(sizeof(tBTA_GATTC_API_READ));
367
368 p_buf->hdr.event = BTA_GATTC_API_READ_EVT;
369 p_buf->hdr.layer_specific = conn_id;
370 p_buf->auth_req = auth_req;
371 p_buf->handle = handle;
372 p_buf->cmpl_evt = BTA_GATTC_READ_DESCR_EVT;
373
374 bta_sys_sendmsg(p_buf);
375 }
376
377 /*******************************************************************************
378 **
379 ** Function BTA_GATTC_ReadMultiple
380 **
381 ** Description This function is called to read multiple characteristic or
382 ** characteristic descriptors.
383 **
384 ** Parameters conn_id - connectino ID.
385 ** p_read_multi - pointer to the read multiple parameter.
386 **
387 ** Returns None
388 **
389 *******************************************************************************/
BTA_GATTC_ReadMultiple(UINT16 conn_id,tBTA_GATTC_MULTI * p_read_multi,tBTA_GATT_AUTH_REQ auth_req)390 void BTA_GATTC_ReadMultiple(UINT16 conn_id, tBTA_GATTC_MULTI *p_read_multi,
391 tBTA_GATT_AUTH_REQ auth_req)
392 {
393 tBTA_GATTC_API_READ_MULTI *p_buf =
394 (tBTA_GATTC_API_READ_MULTI *)osi_calloc(sizeof(tBTA_GATTC_API_READ_MULTI));
395
396 p_buf->hdr.event = BTA_GATTC_API_READ_MULTI_EVT;
397 p_buf->hdr.layer_specific = conn_id;
398 p_buf->auth_req = auth_req;
399 p_buf->num_attr = p_read_multi->num_attr;
400
401 if (p_buf->num_attr > 0)
402 memcpy(p_buf->handles, p_read_multi->handles, sizeof(UINT16) * p_read_multi->num_attr);
403
404 bta_sys_sendmsg(p_buf);
405 }
406
407 /*******************************************************************************
408 **
409 ** Function BTA_GATTC_WriteCharValue
410 **
411 ** Description This function is called to write characteristic value.
412 **
413 ** Parameters conn_id - connection ID.
414 ** handle - characteristic handle to write.
415 ** write_type - type of write.
416 ** len: length of the data to be written.
417 ** p_value - the value to be written.
418 **
419 ** Returns None
420 **
421 *******************************************************************************/
BTA_GATTC_WriteCharValue(UINT16 conn_id,UINT16 handle,tBTA_GATTC_WRITE_TYPE write_type,UINT16 len,UINT8 * p_value,tBTA_GATT_AUTH_REQ auth_req)422 void BTA_GATTC_WriteCharValue ( UINT16 conn_id,
423 UINT16 handle,
424 tBTA_GATTC_WRITE_TYPE write_type,
425 UINT16 len,
426 UINT8 *p_value,
427 tBTA_GATT_AUTH_REQ auth_req)
428 {
429 tBTA_GATTC_API_WRITE *p_buf =
430 (tBTA_GATTC_API_WRITE *)osi_calloc(sizeof(tBTA_GATTC_API_WRITE) + len);
431
432 p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
433 p_buf->hdr.layer_specific = conn_id;
434 p_buf->auth_req = auth_req;
435 p_buf->handle = handle;
436 p_buf->cmpl_evt = BTA_GATTC_WRITE_CHAR_EVT;
437 p_buf->write_type = write_type;
438 p_buf->len = len;
439
440 if (p_value && len > 0) {
441 p_buf->p_value = (UINT8 *)(p_buf + 1);
442 memcpy(p_buf->p_value, p_value, len);
443 }
444
445 bta_sys_sendmsg(p_buf);
446 }
447
448 /*******************************************************************************
449 **
450 ** Function BTA_GATTC_WriteCharDescr
451 **
452 ** Description This function is called to write descriptor value.
453 **
454 ** Parameters conn_id - connection ID
455 ** handle - descriptor hadle to write.
456 ** write_type - write type.
457 ** p_value - the value to be written.
458 **
459 ** Returns None
460 **
461 *******************************************************************************/
BTA_GATTC_WriteCharDescr(UINT16 conn_id,UINT16 handle,tBTA_GATTC_WRITE_TYPE write_type,tBTA_GATT_UNFMT * p_data,tBTA_GATT_AUTH_REQ auth_req)462 void BTA_GATTC_WriteCharDescr (UINT16 conn_id,
463 UINT16 handle,
464 tBTA_GATTC_WRITE_TYPE write_type,
465 tBTA_GATT_UNFMT *p_data,
466 tBTA_GATT_AUTH_REQ auth_req)
467 {
468 size_t len = sizeof(tBTA_GATTC_API_WRITE);
469
470 if (p_data != NULL)
471 len += p_data->len;
472
473 tBTA_GATTC_API_WRITE *p_buf = (tBTA_GATTC_API_WRITE *)osi_calloc(len);
474 p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
475 p_buf->hdr.layer_specific = conn_id;
476 p_buf->auth_req = auth_req;
477 p_buf->handle = handle;
478 p_buf->cmpl_evt = BTA_GATTC_WRITE_DESCR_EVT;
479 p_buf->write_type = write_type;
480
481 if (p_data && p_data->len != 0) {
482 p_buf->p_value = (UINT8 *)(p_buf + 1);
483 p_buf->len = p_data->len;
484 /* pack the descr data */
485 memcpy(p_buf->p_value, p_data->p_value, p_data->len);
486 }
487
488 bta_sys_sendmsg(p_buf);
489 }
490
491 /*******************************************************************************
492 **
493 ** Function BTA_GATTC_PrepareWrite
494 **
495 ** Description This function is called to prepare write a characteristic value.
496 **
497 ** Parameters conn_id - connection ID.
498 ** p_char_id - GATT characteritic ID of the service.
499 ** offset - offset of the write value.
500 ** len: length of the data to be written.
501 ** p_value - the value to be written.
502 **
503 ** Returns None
504 **
505 *******************************************************************************/
BTA_GATTC_PrepareWrite(UINT16 conn_id,UINT16 handle,UINT16 offset,UINT16 len,UINT8 * p_value,tBTA_GATT_AUTH_REQ auth_req)506 void BTA_GATTC_PrepareWrite (UINT16 conn_id, UINT16 handle,
507 UINT16 offset, UINT16 len, UINT8 *p_value,
508 tBTA_GATT_AUTH_REQ auth_req)
509 {
510 tBTA_GATTC_API_WRITE *p_buf =
511 (tBTA_GATTC_API_WRITE *)osi_calloc(sizeof(tBTA_GATTC_API_WRITE) + len);
512
513 p_buf->hdr.event = BTA_GATTC_API_WRITE_EVT;
514 p_buf->hdr.layer_specific = conn_id;
515 p_buf->auth_req = auth_req;
516 p_buf->handle = handle;
517
518 p_buf->write_type = BTA_GATTC_WRITE_PREPARE;
519 p_buf->offset = offset;
520 p_buf->len = len;
521
522 if (p_value && len > 0) {
523 p_buf->p_value = (UINT8 *)(p_buf + 1);
524 memcpy(p_buf->p_value, p_value, len);
525 }
526
527 bta_sys_sendmsg(p_buf);
528 }
529
530 /*******************************************************************************
531 **
532 ** Function BTA_GATTC_ExecuteWrite
533 **
534 ** Description This function is called to execute write a prepare write sequence.
535 **
536 ** Parameters conn_id - connection ID.
537 ** is_execute - execute or cancel.
538 **
539 ** Returns None
540 **
541 *******************************************************************************/
BTA_GATTC_ExecuteWrite(UINT16 conn_id,BOOLEAN is_execute)542 void BTA_GATTC_ExecuteWrite (UINT16 conn_id, BOOLEAN is_execute)
543 {
544 tBTA_GATTC_API_EXEC *p_buf =
545 (tBTA_GATTC_API_EXEC *)osi_calloc(sizeof(tBTA_GATTC_API_EXEC));
546
547 p_buf->hdr.event = BTA_GATTC_API_EXEC_EVT;
548 p_buf->hdr.layer_specific = conn_id;
549 p_buf->is_execute = is_execute;
550
551 bta_sys_sendmsg(p_buf);
552 }
553
554 /*******************************************************************************
555 **
556 ** Function BTA_GATTC_SendIndConfirm
557 **
558 ** Description This function is called to send handle value confirmation.
559 **
560 ** Parameters conn_id - connection ID.
561 ** p_char_id - characteristic ID to confirm.
562 **
563 ** Returns None
564 **
565 *******************************************************************************/
BTA_GATTC_SendIndConfirm(UINT16 conn_id,UINT16 handle)566 void BTA_GATTC_SendIndConfirm (UINT16 conn_id, UINT16 handle)
567 {
568 tBTA_GATTC_API_CONFIRM *p_buf =
569 (tBTA_GATTC_API_CONFIRM *)osi_calloc(sizeof(tBTA_GATTC_API_CONFIRM));
570
571 APPL_TRACE_API("%s conn_id=%d handle=0x%04x", __func__, conn_id, handle);
572
573 p_buf->hdr.event = BTA_GATTC_API_CONFIRM_EVT;
574 p_buf->hdr.layer_specific = conn_id;
575 p_buf->handle = handle;
576
577 bta_sys_sendmsg(p_buf);
578 }
579
580 /*******************************************************************************
581 **
582 ** Function BTA_GATTC_RegisterForNotifications
583 **
584 ** Description This function is called to register for notification of a service.
585 **
586 ** Parameters client_if - client interface.
587 ** bda - target GATT server.
588 ** handle - GATT characteristic handle.
589 **
590 ** Returns OK if registration succeed, otherwise failed.
591 **
592 *******************************************************************************/
BTA_GATTC_RegisterForNotifications(tBTA_GATTC_IF client_if,BD_ADDR bda,UINT16 handle)593 tBTA_GATT_STATUS BTA_GATTC_RegisterForNotifications (tBTA_GATTC_IF client_if,
594 BD_ADDR bda, UINT16 handle)
595 {
596 tBTA_GATTC_RCB *p_clreg;
597 tBTA_GATT_STATUS status = BTA_GATT_ILLEGAL_PARAMETER;
598 UINT8 i;
599
600 if (!handle)
601 {
602 APPL_TRACE_ERROR("deregistration failed, handle is 0");
603 return status;
604 }
605
606 if ((p_clreg = bta_gattc_cl_get_regcb(client_if)) != NULL)
607 {
608 for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
609 {
610 if ( p_clreg->notif_reg[i].in_use &&
611 !memcmp(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN) &&
612 p_clreg->notif_reg[i].handle == handle)
613 {
614 APPL_TRACE_WARNING("notification already registered");
615 status = BTA_GATT_OK;
616 break;
617 }
618 }
619 if (status != BTA_GATT_OK)
620 {
621 for (i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
622 {
623 if (!p_clreg->notif_reg[i].in_use)
624 {
625 memset((void *)&p_clreg->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
626
627 p_clreg->notif_reg[i].in_use = TRUE;
628 memcpy(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN);
629
630 p_clreg->notif_reg[i].handle = handle;
631 status = BTA_GATT_OK;
632 break;
633 }
634 }
635 if (i == BTA_GATTC_NOTIF_REG_MAX)
636 {
637 status = BTA_GATT_NO_RESOURCES;
638 APPL_TRACE_ERROR("Max Notification Reached, registration failed.");
639 }
640 }
641 }
642 else
643 {
644 APPL_TRACE_ERROR("Client_if: %d Not Registered", client_if);
645 }
646
647 return status;
648 }
649
650 /*******************************************************************************
651 **
652 ** Function BTA_GATTC_DeregisterForNotifications
653 **
654 ** Description This function is called to de-register for notification of a servbice.
655 **
656 ** Parameters client_if - client interface.
657 ** remote_bda - target GATT server.
658 ** handle - GATT characteristic handle.
659 **
660 ** Returns OK if deregistration succeed, otherwise failed.
661 **
662 *******************************************************************************/
BTA_GATTC_DeregisterForNotifications(tBTA_GATTC_IF client_if,BD_ADDR bda,UINT16 handle)663 tBTA_GATT_STATUS BTA_GATTC_DeregisterForNotifications (tBTA_GATTC_IF client_if,
664 BD_ADDR bda, UINT16 handle)
665 {
666 if (!handle) {
667 APPL_TRACE_ERROR("%s: deregistration failed, handle is 0", __func__);
668 return BTA_GATT_ILLEGAL_PARAMETER;
669 }
670
671 tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(client_if);
672 if (p_clreg == NULL) {
673 APPL_TRACE_ERROR("%s client_if: %d not registered bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
674 __func__, client_if, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
675 return BTA_GATT_ILLEGAL_PARAMETER;
676 }
677
678 for (int i = 0; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
679 if (p_clreg->notif_reg[i].in_use &&
680 !memcmp(p_clreg->notif_reg[i].remote_bda, bda, BD_ADDR_LEN) &&
681 p_clreg->notif_reg[i].handle == handle) {
682 APPL_TRACE_DEBUG("%s deregistered bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
683 __func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
684 memset(&p_clreg->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
685 return BTA_GATT_OK;
686 }
687 }
688
689 APPL_TRACE_ERROR("%s registration not found bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
690 __func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
691 return BTA_GATT_ERROR;
692 }
693
694 /*******************************************************************************
695 **
696 ** Function BTA_GATTC_Refresh
697 **
698 ** Description Refresh the server cache of the remote device
699 **
700 ** Parameters remote_bda: remote device BD address.
701 **
702 ** Returns void
703 **
704 *******************************************************************************/
BTA_GATTC_Refresh(BD_ADDR remote_bda)705 void BTA_GATTC_Refresh(BD_ADDR remote_bda)
706 {
707 tBTA_GATTC_API_OPEN *p_buf =
708 (tBTA_GATTC_API_OPEN *)osi_malloc(sizeof(tBTA_GATTC_API_OPEN));
709
710 p_buf->hdr.event = BTA_GATTC_API_REFRESH_EVT;
711 memcpy(p_buf->remote_bda, remote_bda, BD_ADDR_LEN);
712
713 bta_sys_sendmsg(p_buf);
714 }
715
716 /*******************************************************************************
717 **
718 ** Function BTA_GATTC_Listen
719 **
720 ** Description Start advertisement to listen for connection request for a GATT
721 ** client application.
722 **
723 ** Parameters client_if: server interface.
724 ** start: to start or stop listening for connection
725 ** remote_bda: remote device BD address, if listen to all device
726 ** use NULL.
727 **
728 ** Returns void
729 **
730 *******************************************************************************/
BTA_GATTC_Listen(tBTA_GATTC_IF client_if,BOOLEAN start,BD_ADDR_PTR target_bda)731 void BTA_GATTC_Listen(tBTA_GATTC_IF client_if, BOOLEAN start, BD_ADDR_PTR target_bda)
732 {
733 tBTA_GATTC_API_LISTEN *p_buf =
734 (tBTA_GATTC_API_LISTEN *)osi_malloc(sizeof(tBTA_GATTC_API_LISTEN) + BD_ADDR_LEN);
735
736 p_buf->hdr.event = BTA_GATTC_API_LISTEN_EVT;
737 p_buf->client_if = client_if;
738 p_buf->start = start;
739 if (target_bda) {
740 p_buf->remote_bda = (UINT8*)(p_buf + 1);
741 memcpy(p_buf->remote_bda, target_bda, BD_ADDR_LEN);
742 } else {
743 p_buf->remote_bda = NULL;
744 }
745
746 bta_sys_sendmsg(p_buf);
747 }
748
749 /*******************************************************************************
750 **
751 ** Function BTA_GATTC_Broadcast
752 **
753 ** Description Start broadcasting (non-connectable advertisements)
754 **
755 ** Parameters client_if: client interface.
756 ** start: to start or stop listening for connection
757 **
758 ** Returns void
759 **
760 *******************************************************************************/
BTA_GATTC_Broadcast(tBTA_GATTC_IF client_if,BOOLEAN start)761 void BTA_GATTC_Broadcast(tBTA_GATTC_IF client_if, BOOLEAN start)
762 {
763 tBTA_GATTC_API_LISTEN *p_buf =
764 (tBTA_GATTC_API_LISTEN *)osi_malloc(sizeof(tBTA_GATTC_API_LISTEN) + BD_ADDR_LEN);
765
766 p_buf->hdr.event = BTA_GATTC_API_BROADCAST_EVT;
767 p_buf->client_if = client_if;
768 p_buf->start = start;
769
770 bta_sys_sendmsg(p_buf);
771 }
772
773 #endif /* BTA_GATT_INCLUDED */
774