1 /****************************************************************************** 2 * 3 * Copyright (C) 1999-2012 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 file contains GATT interface functions 22 * 23 ******************************************************************************/ 24 #include "bt_target.h" 25 26 27 #if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE) 28 29 #include "bt_common.h" 30 #include <stdio.h> 31 #include <string.h> 32 #include "gatt_api.h" 33 #include "gatt_int.h" 34 #include "l2c_api.h" 35 #include "btm_int.h" 36 37 /******************************************************************************* 38 ** 39 ** Function GATT_SetTraceLevel 40 ** 41 ** Description This function sets the trace level. If called with 42 ** a value of 0xFF, it simply returns the current trace level. 43 ** 44 ** Input Parameters: 45 ** level: The level to set the GATT tracing to: 46 ** 0xff-returns the current setting. 47 ** 0-turns off tracing. 48 ** >= 1-Errors. 49 ** >= 2-Warnings. 50 ** >= 3-APIs. 51 ** >= 4-Events. 52 ** >= 5-Debug. 53 ** 54 ** Returns The new or current trace level 55 ** 56 *******************************************************************************/ 57 UINT8 GATT_SetTraceLevel (UINT8 new_level) 58 { 59 if (new_level != 0xFF) 60 gatt_cb.trace_level = new_level; 61 62 return(gatt_cb.trace_level); 63 } 64 65 /***************************************************************************** 66 ** 67 ** GATT SERVER API 68 ** 69 ******************************************************************************/ 70 /******************************************************************************* 71 ** 72 ** Function GATTS_AddHandleRange 73 ** 74 ** Description This function add the allocated handles range for the specifed 75 ** application UUID, service UUID and service instance 76 ** 77 ** Parameter p_hndl_range: pointer to allocated handles information 78 ** 79 ** Returns TRUE if handle range is added sucessfully; otherwise FALSE. 80 ** 81 *******************************************************************************/ 82 83 BOOLEAN GATTS_AddHandleRange(tGATTS_HNDL_RANGE *p_hndl_range) 84 { 85 tGATT_HDL_LIST_ELEM *p_buf; 86 BOOLEAN status= FALSE; 87 88 if ((p_buf = gatt_alloc_hdl_buffer()) != NULL) 89 { 90 p_buf->asgn_range = *p_hndl_range; 91 status = gatt_add_an_item_to_list(&gatt_cb.hdl_list_info, p_buf); 92 } 93 return status; 94 } 95 96 97 /******************************************************************************* 98 ** 99 ** Function GATTS_NVRegister 100 ** 101 ** Description Application manager calls this function to register for 102 ** NV save callback function. There can be one and only one 103 ** NV save callback function. 104 ** 105 ** Parameter p_cb_info : callback informaiton 106 ** 107 ** Returns TRUE if registered OK, else FALSE 108 ** 109 *******************************************************************************/ 110 BOOLEAN GATTS_NVRegister (tGATT_APPL_INFO *p_cb_info) 111 { 112 BOOLEAN status= FALSE; 113 if (p_cb_info) 114 { 115 gatt_cb.cb_info = *p_cb_info; 116 status = TRUE; 117 gatt_init_srv_chg(); 118 } 119 120 return status; 121 } 122 123 /******************************************************************************* 124 ** 125 ** Function GATTS_CreateService 126 ** 127 ** Description This function is called to reserve a block of handles for a service. 128 ** 129 ** *** It should be called only once per service instance *** 130 ** 131 ** Parameter gatt_if : application if 132 ** p_svc_uuid : service UUID 133 ** svc_inst : instance of the service inside the application 134 ** num_handles : number of handles needed by the service. 135 ** is_pri : is a primary service or not. 136 ** 137 ** Returns service handle if sucessful, otherwise 0. 138 ** 139 *******************************************************************************/ 140 UINT16 GATTS_CreateService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid, 141 UINT16 svc_inst, UINT16 num_handles, BOOLEAN is_pri) 142 { 143 144 tGATT_HDL_LIST_INFO *p_list_info= &gatt_cb.hdl_list_info; 145 tGATT_HDL_LIST_ELEM *p_list=NULL; 146 UINT16 s_hdl=0; 147 BOOLEAN save_hdl=FALSE; 148 tGATTS_PENDING_NEW_SRV_START *p_buf=NULL; 149 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 150 tBT_UUID *p_app_uuid128; 151 152 153 GATT_TRACE_API ("GATTS_CreateService" ); 154 155 if (p_reg == NULL) 156 { 157 GATT_TRACE_ERROR ("Inavlid gatt_if=%d", gatt_if); 158 return(0); 159 } 160 161 p_app_uuid128 = &p_reg->app_uuid128; 162 163 if ((p_list = gatt_find_hdl_buffer_by_app_id(p_app_uuid128, p_svc_uuid, svc_inst)) != NULL) 164 { 165 s_hdl = p_list->asgn_range.s_handle; 166 GATT_TRACE_DEBUG ("Service already been created!!"); 167 } 168 else 169 { 170 if ( (p_svc_uuid->len == LEN_UUID_16) && (p_svc_uuid->uu.uuid16 == UUID_SERVCLASS_GATT_SERVER)) 171 { 172 s_hdl= gatt_cb.hdl_cfg.gatt_start_hdl; 173 } 174 else if ((p_svc_uuid->len == LEN_UUID_16) && (p_svc_uuid->uu.uuid16 == UUID_SERVCLASS_GAP_SERVER)) 175 { 176 s_hdl= gatt_cb.hdl_cfg.gap_start_hdl; 177 } 178 else 179 { 180 p_list = p_list_info->p_first; 181 182 if (p_list) 183 { 184 s_hdl = p_list->asgn_range.e_handle + 1; 185 } 186 187 if (s_hdl < gatt_cb.hdl_cfg.app_start_hdl) 188 { 189 190 s_hdl= gatt_cb.hdl_cfg.app_start_hdl; 191 } 192 save_hdl = TRUE; 193 } 194 195 /* check for space */ 196 if (num_handles > (0xFFFF - s_hdl + 1)) 197 { 198 GATT_TRACE_ERROR ("GATTS_ReserveHandles: no handles, s_hdl: %u needed: %u", s_hdl, num_handles); 199 return(0); 200 } 201 202 if ( (p_list = gatt_alloc_hdl_buffer()) == NULL) 203 { 204 /* No free entry */ 205 GATT_TRACE_ERROR ("GATTS_ReserveHandles: no free handle blocks"); 206 return(0); 207 } 208 209 p_list->asgn_range.app_uuid128 = *p_app_uuid128; 210 p_list->asgn_range.svc_uuid = *p_svc_uuid; 211 p_list->asgn_range.svc_inst = svc_inst; 212 p_list->asgn_range.s_handle = s_hdl; 213 p_list->asgn_range.e_handle = s_hdl+num_handles-1; 214 p_list->asgn_range.is_primary = is_pri; 215 216 gatt_add_an_item_to_list(p_list_info, p_list); 217 218 if (save_hdl) 219 { 220 if (gatt_cb.cb_info.p_nv_save_callback) 221 (*gatt_cb.cb_info.p_nv_save_callback)(TRUE, &p_list->asgn_range); 222 /* add a pending new service change item to the list */ 223 if ( (p_buf = gatt_add_pending_new_srv_start(&p_list->asgn_range)) == NULL) 224 { 225 /* No free entry */ 226 GATT_TRACE_ERROR ("gatt_add_pending_new_srv_start: no free blocks"); 227 228 if (p_list) 229 { 230 gatt_remove_an_item_from_list(p_list_info, p_list); 231 gatt_free_hdl_buffer(p_list); 232 } 233 return(0); 234 } 235 236 GATT_TRACE_DEBUG ("Add a new srv chg item"); 237 } 238 } 239 240 if (!gatts_init_service_db(&p_list->svc_db, p_svc_uuid, is_pri, s_hdl , num_handles)) 241 { 242 GATT_TRACE_ERROR ("GATTS_ReserveHandles: service DB initialization failed"); 243 if (p_list) 244 { 245 gatt_remove_an_item_from_list(p_list_info, p_list); 246 gatt_free_hdl_buffer(p_list); 247 } 248 249 if (p_buf) 250 osi_free(fixed_queue_try_remove_from_queue(gatt_cb.pending_new_srv_start_q, p_buf)); 251 return(0); 252 } 253 254 GATT_TRACE_DEBUG ("GATTS_CreateService(success): handles needed:%u s_hdl=%u e_hdl=%u %s[%x] is_primary=%d", 255 num_handles, p_list->asgn_range.s_handle , p_list->asgn_range.e_handle, 256 ((p_list->asgn_range.svc_uuid.len == 2) ? "uuid16": "uuid128" ), 257 p_list->asgn_range.svc_uuid.uu.uuid16, 258 p_list->asgn_range.is_primary); 259 260 return(s_hdl); 261 } 262 263 /******************************************************************************* 264 ** 265 ** Function GATTS_AddIncludeService 266 ** 267 ** Description This function is called to add an included service. 268 ** 269 ** Parameter service_handle : To which service this included service is added to. 270 ** include_svc_handle : included service handle. 271 ** 272 ** Returns included service attribute handle. If 0, add included service 273 ** fail. 274 ** 275 *******************************************************************************/ 276 UINT16 GATTS_AddIncludeService (UINT16 service_handle, UINT16 include_svc_handle) 277 278 { 279 tGATT_HDL_LIST_ELEM *p_decl, *p_incl_decl; 280 281 if ((p_decl = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL) 282 { 283 GATT_TRACE_DEBUG("Service not created"); 284 return 0; 285 } 286 if ((p_incl_decl = gatt_find_hdl_buffer_by_handle(include_svc_handle)) == NULL) 287 { 288 GATT_TRACE_DEBUG("Included Service not created"); 289 return 0; 290 } 291 292 return gatts_add_included_service(&p_decl->svc_db, 293 p_incl_decl->asgn_range.s_handle, 294 p_incl_decl->asgn_range.e_handle, 295 p_incl_decl->asgn_range.svc_uuid); 296 } 297 /******************************************************************************* 298 ** 299 ** Function GATTS_AddCharacteristic 300 ** 301 ** Description This function is called to add a characteristic into a service. 302 ** It will add a characteristic declaration and characteristic 303 ** value declaration into the service database identified by the 304 ** service handle. 305 ** 306 ** Parameter service_handle : To which service this included service is added to. 307 ** char_uuid : Characteristic UUID. 308 ** perm : Characteristic value declaration attribute permission. 309 ** property : Characteristic Properties 310 ** 311 ** Returns Characteristic value declaration attribute handle. 0 if failed. 312 ** 313 *******************************************************************************/ 314 UINT16 GATTS_AddCharacteristic (UINT16 service_handle, tBT_UUID *p_char_uuid, 315 tGATT_PERM perm,tGATT_CHAR_PROP property) 316 { 317 tGATT_HDL_LIST_ELEM *p_decl; 318 319 if ((p_decl = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL) 320 { 321 GATT_TRACE_DEBUG("Service not created"); 322 return 0; 323 } 324 /* data validity checking */ 325 if ( ((property & GATT_CHAR_PROP_BIT_AUTH) && !(perm & GATT_WRITE_SIGNED_PERM)) || 326 ((perm & GATT_WRITE_SIGNED_PERM) && !(property & GATT_CHAR_PROP_BIT_AUTH)) ) 327 { 328 GATT_TRACE_DEBUG("Invalid configuration property=0x%x perm=0x%x ", property, perm); 329 return 0; 330 } 331 332 return gatts_add_characteristic(&p_decl->svc_db, 333 perm, 334 property, 335 p_char_uuid); 336 } 337 /******************************************************************************* 338 ** 339 ** Function GATTS_AddCharDescriptor 340 ** 341 ** Description This function is called to add a characteristic descriptor 342 ** into a service database. Add descriptor should follow add char 343 ** to which it belongs, and next add char should be done only 344 ** after all add descriptors for the previous char. 345 ** 346 ** Parameter service_handle : To which service this characteristic descriptor 347 ** is added to. 348 ** perm : Characteristic value declaration attribute 349 ** permission. 350 ** p_descr_uuid : Characteristic descriptor UUID 351 ** 352 ** Returns Characteristic descriptor attribute handle. 0 if add 353 ** characteristic descriptor failed. 354 ** 355 *******************************************************************************/ 356 UINT16 GATTS_AddCharDescriptor (UINT16 service_handle, 357 tGATT_PERM perm, 358 tBT_UUID * p_descr_uuid) 359 { 360 tGATT_HDL_LIST_ELEM *p_decl; 361 362 if ((p_decl = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL) 363 { 364 GATT_TRACE_DEBUG("Service not created"); 365 return 0; 366 } 367 if (p_descr_uuid == NULL || 368 (p_descr_uuid->len != LEN_UUID_128 && p_descr_uuid->len != LEN_UUID_16 369 && p_descr_uuid->len != LEN_UUID_32)) 370 { 371 GATT_TRACE_DEBUG("Illegal parameter"); 372 return 0; 373 } 374 375 return gatts_add_char_descr(&p_decl->svc_db, 376 perm, 377 p_descr_uuid); 378 379 } 380 /******************************************************************************* 381 ** 382 ** Function GATTS_DeleteService 383 ** 384 ** Description This function is called to delete a service. 385 ** 386 ** Parameter gatt_if : application interface 387 ** p_svc_uuid : service UUID 388 ** svc_inst : instance of the service inside the application 389 ** 390 ** Returns TRUE if operation succeed, FALSE if handle block was not found. 391 ** 392 *******************************************************************************/ 393 BOOLEAN GATTS_DeleteService (tGATT_IF gatt_if, tBT_UUID *p_svc_uuid, UINT16 svc_inst) 394 { 395 396 tGATT_HDL_LIST_INFO *p_list_info= &gatt_cb.hdl_list_info; 397 tGATT_HDL_LIST_ELEM *p_list=NULL; 398 UINT8 i_sreg; 399 tGATTS_PENDING_NEW_SRV_START *p_buf; 400 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 401 tBT_UUID *p_app_uuid128; 402 403 GATT_TRACE_DEBUG ("GATTS_DeleteService"); 404 405 if (p_reg == NULL) 406 { 407 GATT_TRACE_ERROR ("Applicaiton not foud"); 408 return(FALSE); 409 } 410 p_app_uuid128 = &p_reg->app_uuid128; 411 412 if ((p_list = gatt_find_hdl_buffer_by_app_id(p_app_uuid128, p_svc_uuid, svc_inst)) == NULL) 413 { 414 GATT_TRACE_ERROR ("No Service found"); 415 return(FALSE); 416 } 417 418 if ( (p_buf = gatt_sr_is_new_srv_chg(&p_list->asgn_range.app_uuid128, 419 &p_list->asgn_range.svc_uuid, 420 p_list->asgn_range.svc_inst)) != NULL) 421 { 422 GATT_TRACE_DEBUG ("Delete a new service changed item - the service has not yet started"); 423 osi_free(fixed_queue_try_remove_from_queue(gatt_cb.pending_new_srv_start_q, p_buf)); 424 } 425 else 426 { 427 gatt_proc_srv_chg(); 428 } 429 430 if ((i_sreg = gatt_sr_find_i_rcb_by_app_id (p_app_uuid128, 431 p_svc_uuid, 432 svc_inst)) != GATT_MAX_SR_PROFILES) 433 { 434 GATTS_StopService(gatt_cb.sr_reg[i_sreg].s_hdl); 435 } 436 437 GATT_TRACE_DEBUG ("released handles s_hdl=%u e_hdl=%u", 438 p_list->asgn_range.s_handle , p_list->asgn_range.e_handle ); 439 440 if ( (p_list->asgn_range.s_handle >= gatt_cb.hdl_cfg.app_start_hdl) 441 && gatt_cb.cb_info.p_nv_save_callback) 442 (*gatt_cb.cb_info.p_nv_save_callback)(FALSE, &p_list->asgn_range); 443 444 gatt_remove_an_item_from_list(p_list_info, p_list); 445 gatt_free_hdl_buffer(p_list); 446 447 return(TRUE); 448 } 449 450 /******************************************************************************* 451 ** 452 ** Function GATTS_StartService 453 ** 454 ** Description This function is called to start a service with GATT 455 ** 456 ** Parameter gatt_if : service handle. 457 ** p_cback : application service callback functions. 458 ** sup_transport : supported transport(s) for this primary service 459 ** 460 ** return GATT_SUCCESS if sucessfully started; otherwise error code. 461 ** 462 *******************************************************************************/ 463 tGATT_STATUS GATTS_StartService (tGATT_IF gatt_if, UINT16 service_handle, 464 tGATT_TRANSPORT sup_transport) 465 { 466 tGATT_SR_REG *p_sreg; 467 tGATT_HDL_LIST_ELEM *p_list=NULL; 468 UINT8 i_sreg; 469 tBT_UUID *p_uuid; 470 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 471 472 tGATTS_PENDING_NEW_SRV_START *p_buf; 473 474 GATT_TRACE_API ("GATTS_StartService"); 475 476 if (p_reg == NULL) 477 { 478 /* Not found */ 479 GATT_TRACE_ERROR ("Applicaiton not found "); 480 return GATT_NOT_FOUND; 481 } 482 483 if ((p_list = gatt_find_hdl_buffer_by_handle(service_handle)) == NULL) 484 { 485 /* Not found */ 486 GATT_TRACE_ERROR ("no service found"); 487 return GATT_NOT_FOUND; 488 } 489 490 if (gatt_sr_find_i_rcb_by_app_id (&p_list->asgn_range.app_uuid128, 491 &p_list->asgn_range.svc_uuid, 492 p_list->asgn_range.svc_inst) != GATT_MAX_SR_PROFILES) 493 { 494 GATT_TRACE_ERROR ("Duplicate Service start - Service already started"); 495 return GATT_SERVICE_STARTED; 496 } 497 498 /*this is a new application servoce start */ 499 if ((i_sreg = gatt_sr_alloc_rcb(p_list)) == GATT_MAX_SR_PROFILES) 500 { 501 GATT_TRACE_ERROR ("GATTS_StartService: no free server registration block"); 502 return GATT_NO_RESOURCES; 503 } 504 505 p_sreg = &gatt_cb.sr_reg[i_sreg]; 506 p_sreg->gatt_if = gatt_if; 507 508 switch (sup_transport) 509 { 510 case GATT_TRANSPORT_BR_EDR: 511 case GATT_TRANSPORT_LE_BR_EDR: 512 if (p_sreg->type == GATT_UUID_PRI_SERVICE) 513 { 514 p_uuid = gatts_get_service_uuid (p_sreg->p_db); 515 516 p_sreg->sdp_handle = gatt_add_sdp_record(p_uuid, p_sreg->s_hdl, p_sreg->e_hdl); 517 } 518 break; 519 default: 520 break; 521 } 522 523 gatts_update_srv_list_elem(i_sreg, p_sreg->s_hdl, 524 p_list->asgn_range.is_primary); 525 526 gatt_add_a_srv_to_list(&gatt_cb.srv_list_info, &gatt_cb.srv_list[i_sreg]); 527 528 GATT_TRACE_DEBUG ("allocated i_sreg=%d ",i_sreg); 529 530 GATT_TRACE_DEBUG ("s_hdl=%d e_hdl=%d type=0x%x svc_inst=%d sdp_hdl=0x%x", 531 p_sreg->s_hdl,p_sreg->e_hdl, 532 p_sreg->type, p_sreg->service_instance, 533 p_sreg->sdp_handle); 534 535 536 if ( (p_buf = gatt_sr_is_new_srv_chg(&p_list->asgn_range.app_uuid128, 537 &p_list->asgn_range.svc_uuid, 538 p_list->asgn_range.svc_inst)) != NULL) 539 { 540 gatt_proc_srv_chg(); 541 /* remove the new service element after the srv changed processing is completed*/ 542 543 osi_free(fixed_queue_try_remove_from_queue(gatt_cb.pending_new_srv_start_q, p_buf)); 544 } 545 return GATT_SUCCESS; 546 } 547 548 /******************************************************************************* 549 ** 550 ** Function GATTS_StopService 551 ** 552 ** Description This function is called to stop a service 553 ** 554 ** Parameter service_handle : this is the start handle of a service 555 ** 556 ** Returns None. 557 ** 558 *******************************************************************************/ 559 void GATTS_StopService (UINT16 service_handle) 560 { 561 UINT8 ii = gatt_sr_find_i_rcb_by_handle(service_handle); 562 563 GATT_TRACE_API("GATTS_StopService %u", service_handle); 564 565 /* Index 0 is reserved for GATT, and is never stopped */ 566 if ( (ii > 0) && (ii < GATT_MAX_SR_PROFILES) && (gatt_cb.sr_reg[ii].in_use) ) 567 { 568 if (gatt_cb.sr_reg[ii].sdp_handle) 569 { 570 SDP_DeleteRecord(gatt_cb.sr_reg[ii].sdp_handle); 571 } 572 gatt_remove_a_srv_from_list(&gatt_cb.srv_list_info, &gatt_cb.srv_list[ii]); 573 gatt_cb.srv_list[ii].in_use = FALSE; 574 memset (&gatt_cb.sr_reg[ii], 0, sizeof(tGATT_SR_REG)); 575 } 576 else 577 { 578 GATT_TRACE_ERROR("GATTS_StopService service_handle: %u is not in use", service_handle); 579 } 580 } 581 /******************************************************************************* 582 ** 583 ** Function GATTs_HandleValueIndication 584 ** 585 ** Description This function sends a handle value indication to a client. 586 ** 587 ** Parameter conn_id: connection identifier. 588 ** attr_handle: Attribute handle of this handle value indication. 589 ** val_len: Length of the indicated attribute value. 590 ** p_val: Pointer to the indicated attribute value data. 591 ** 592 ** Returns GATT_SUCCESS if sucessfully sent or queued; otherwise error code. 593 ** 594 *******************************************************************************/ 595 tGATT_STATUS GATTS_HandleValueIndication (UINT16 conn_id, UINT16 attr_handle, UINT16 val_len, UINT8 *p_val) 596 { 597 tGATT_STATUS cmd_status = GATT_NO_RESOURCES; 598 599 tGATT_VALUE indication; 600 BT_HDR *p_msg; 601 tGATT_VALUE *p_buf; 602 tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id); 603 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 604 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 605 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 606 607 608 GATT_TRACE_API ("GATTS_HandleValueIndication"); 609 if ( (p_reg == NULL) || (p_tcb == NULL)) 610 { 611 GATT_TRACE_ERROR ("GATTS_HandleValueIndication Unknown conn_id: %u ", conn_id); 612 return(tGATT_STATUS) GATT_INVALID_CONN_ID; 613 } 614 615 if (! GATT_HANDLE_IS_VALID (attr_handle)) 616 return GATT_ILLEGAL_PARAMETER; 617 618 indication.conn_id = conn_id; 619 indication.handle = attr_handle; 620 indication.len = val_len; 621 memcpy (indication.value, p_val, val_len); 622 indication.auth_req = GATT_AUTH_REQ_NONE; 623 624 if (GATT_HANDLE_IS_VALID(p_tcb->indicate_handle)) 625 { 626 GATT_TRACE_DEBUG ("Add a pending indication"); 627 if ((p_buf = gatt_add_pending_ind(p_tcb, &indication)) !=NULL) 628 { 629 cmd_status = GATT_SUCCESS; 630 } 631 else 632 { 633 cmd_status = GATT_NO_RESOURCES; 634 } 635 } 636 else 637 { 638 639 if ( (p_msg = attp_build_sr_msg (p_tcb, GATT_HANDLE_VALUE_IND, (tGATT_SR_MSG *)&indication)) != NULL) 640 { 641 cmd_status = attp_send_sr_msg (p_tcb, p_msg); 642 643 if (cmd_status == GATT_SUCCESS || cmd_status == GATT_CONGESTED) 644 { 645 p_tcb->indicate_handle = indication.handle; 646 gatt_start_conf_timer(p_tcb); 647 } 648 } 649 } 650 return cmd_status; 651 } 652 653 /******************************************************************************* 654 ** 655 ** Function GATTS_HandleValueNotification 656 ** 657 ** Description This function sends a handle value notification to a client. 658 ** 659 ** Parameter conn_id: connection identifier. 660 ** attr_handle: Attribute handle of this handle value indication. 661 ** val_len: Length of the indicated attribute value. 662 ** p_val: Pointer to the indicated attribute value data. 663 ** 664 ** Returns GATT_SUCCESS if sucessfully sent; otherwise error code. 665 ** 666 *******************************************************************************/ 667 tGATT_STATUS GATTS_HandleValueNotification (UINT16 conn_id, UINT16 attr_handle, 668 UINT16 val_len, UINT8 *p_val) 669 { 670 tGATT_STATUS cmd_sent = GATT_ILLEGAL_PARAMETER; 671 BT_HDR *p_buf; 672 tGATT_VALUE notif; 673 tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id); 674 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 675 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 676 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 677 678 GATT_TRACE_API ("GATTS_HandleValueNotification"); 679 680 if ( (p_reg == NULL) || (p_tcb == NULL)) 681 { 682 GATT_TRACE_ERROR ("GATTS_HandleValueNotification Unknown conn_id: %u ", conn_id); 683 return(tGATT_STATUS) GATT_INVALID_CONN_ID; 684 } 685 686 if (GATT_HANDLE_IS_VALID (attr_handle)) 687 { 688 notif.handle = attr_handle; 689 notif.len = val_len; 690 memcpy (notif.value, p_val, val_len); 691 notif.auth_req = GATT_AUTH_REQ_NONE;; 692 693 if ((p_buf = attp_build_sr_msg (p_tcb, GATT_HANDLE_VALUE_NOTIF, (tGATT_SR_MSG *)¬if)) 694 != NULL) 695 { 696 cmd_sent = attp_send_sr_msg (p_tcb, p_buf); 697 } 698 else 699 cmd_sent = GATT_NO_RESOURCES; 700 } 701 return cmd_sent; 702 } 703 704 /******************************************************************************* 705 ** 706 ** Function GATTS_SendRsp 707 ** 708 ** Description This function sends the server response to client. 709 ** 710 ** Parameter conn_id: connection identifier. 711 ** trans_id: transaction id 712 ** status: response status 713 ** p_msg: pointer to message parameters structure. 714 ** 715 ** Returns GATT_SUCCESS if sucessfully sent; otherwise error code. 716 ** 717 *******************************************************************************/ 718 tGATT_STATUS GATTS_SendRsp (UINT16 conn_id, UINT32 trans_id, 719 tGATT_STATUS status, tGATTS_RSP *p_msg) 720 { 721 tGATT_STATUS cmd_sent = GATT_ILLEGAL_PARAMETER; 722 tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id); 723 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 724 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 725 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 726 727 GATT_TRACE_API ("GATTS_SendRsp: conn_id: %u trans_id: %u Status: 0x%04x", 728 conn_id, trans_id, status); 729 730 if ( (p_reg == NULL) || (p_tcb == NULL)) 731 { 732 GATT_TRACE_ERROR ("GATTS_SendRsp Unknown conn_id: %u ", conn_id); 733 return(tGATT_STATUS) GATT_INVALID_CONN_ID; 734 } 735 736 if (p_tcb->sr_cmd.trans_id != trans_id) 737 { 738 GATT_TRACE_ERROR ("GATTS_SendRsp conn_id: %u waiting for op_code = %02x", 739 conn_id, p_tcb->sr_cmd.op_code); 740 741 return(GATT_WRONG_STATE); 742 } 743 /* Process App response */ 744 cmd_sent = gatt_sr_process_app_rsp (p_tcb, gatt_if, trans_id, p_tcb->sr_cmd.op_code, status, p_msg); 745 746 return cmd_sent; 747 } 748 749 /*******************************************************************************/ 750 /* GATT Profile Srvr Functions */ 751 /*******************************************************************************/ 752 753 /*******************************************************************************/ 754 /* */ 755 /* GATT CLIENT APIs */ 756 /* */ 757 /*******************************************************************************/ 758 759 760 /******************************************************************************* 761 ** 762 ** Function GATTC_ConfigureMTU 763 ** 764 ** Description This function is called to configure the ATT MTU size. 765 ** 766 ** Parameters conn_id: connection identifier. 767 ** mtu - attribute MTU size.. 768 ** 769 ** Returns GATT_SUCCESS if command started successfully. 770 ** 771 *******************************************************************************/ 772 tGATT_STATUS GATTC_ConfigureMTU (UINT16 conn_id, UINT16 mtu) 773 { 774 UINT8 ret = GATT_NO_RESOURCES; 775 tGATT_IF gatt_if=GATT_GET_GATT_IF(conn_id); 776 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 777 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 778 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 779 780 tGATT_CLCB *p_clcb; 781 782 GATT_TRACE_API ("GATTC_ConfigureMTU conn_id=%d mtu=%d", conn_id, mtu ); 783 784 /* Validate that the link is BLE, not BR/EDR */ 785 if (p_tcb->transport != BT_TRANSPORT_LE) 786 { 787 return GATT_ERROR; 788 } 789 790 if ( (p_tcb == NULL) || (p_reg==NULL) || (mtu < GATT_DEF_BLE_MTU_SIZE) || (mtu > GATT_MAX_MTU_SIZE)) 791 { 792 return GATT_ILLEGAL_PARAMETER; 793 } 794 795 if (gatt_is_clcb_allocated(conn_id)) 796 { 797 GATT_TRACE_ERROR("GATTC_ConfigureMTU GATT_BUSY conn_id = %d", conn_id); 798 return GATT_BUSY; 799 } 800 801 if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL) 802 { 803 p_clcb->p_tcb->payload_size = mtu; 804 p_clcb->operation = GATTC_OPTYPE_CONFIG; 805 806 ret = attp_send_cl_msg (p_clcb->p_tcb, p_clcb->clcb_idx, GATT_REQ_MTU, (tGATT_CL_MSG *)&mtu); 807 } 808 809 return ret; 810 } 811 812 /******************************************************************************* 813 ** 814 ** Function GATTC_Discover 815 ** 816 ** Description This function is called to do a discovery procedure on ATT server. 817 ** 818 ** Parameters conn_id: connection identifier. 819 ** disc_type:discovery type. 820 ** p_param: parameters of discovery requirement. 821 ** 822 ** Returns GATT_SUCCESS if command received/sent successfully. 823 ** 824 *******************************************************************************/ 825 tGATT_STATUS GATTC_Discover (UINT16 conn_id, tGATT_DISC_TYPE disc_type, 826 tGATT_DISC_PARAM *p_param) 827 { 828 tGATT_STATUS status = GATT_SUCCESS; 829 tGATT_CLCB *p_clcb; 830 tGATT_IF gatt_if=GATT_GET_GATT_IF(conn_id); 831 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 832 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 833 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 834 835 836 GATT_TRACE_API ("GATTC_Discover conn_id=%d disc_type=%d",conn_id, disc_type); 837 838 if ( (p_tcb == NULL) || (p_reg==NULL) ||(p_param == NULL) || 839 (disc_type >= GATT_DISC_MAX)) 840 { 841 GATT_TRACE_ERROR("GATTC_Discover Illegal param: disc_type %d conn_id = %d", disc_type, conn_id); 842 return GATT_ILLEGAL_PARAMETER; 843 } 844 845 846 if (gatt_is_clcb_allocated(conn_id)) 847 { 848 GATT_TRACE_ERROR("GATTC_Discover GATT_BUSY conn_id = %d", conn_id); 849 return GATT_BUSY; 850 } 851 852 853 if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL ) 854 { 855 if (!GATT_HANDLE_IS_VALID(p_param->s_handle) || 856 !GATT_HANDLE_IS_VALID(p_param->e_handle) || 857 /* search by type does not have a valid UUID param */ 858 (disc_type == GATT_DISC_SRVC_BY_UUID && 859 p_param->service.len == 0)) 860 { 861 gatt_clcb_dealloc(p_clcb); 862 return GATT_ILLEGAL_PARAMETER; 863 } 864 865 p_clcb->operation = GATTC_OPTYPE_DISCOVERY; 866 p_clcb->op_subtype = disc_type; 867 p_clcb->s_handle = p_param->s_handle; 868 p_clcb->e_handle = p_param->e_handle; 869 p_clcb->uuid = p_param->service; 870 871 gatt_act_discovery(p_clcb); 872 } 873 else 874 { 875 status = GATT_NO_RESOURCES; 876 } 877 return status; 878 } 879 880 /******************************************************************************* 881 ** 882 ** Function GATTC_Read 883 ** 884 ** Description This function is called to read the value of an attribute from 885 ** the server. 886 ** 887 ** Parameters conn_id: connection identifier. 888 ** type - attribute read type. 889 ** p_read - read operation parameters. 890 ** 891 ** Returns GATT_SUCCESS if command started successfully. 892 ** 893 *******************************************************************************/ 894 tGATT_STATUS GATTC_Read (UINT16 conn_id, tGATT_READ_TYPE type, tGATT_READ_PARAM *p_read) 895 { 896 tGATT_STATUS status = GATT_SUCCESS; 897 tGATT_CLCB *p_clcb; 898 tGATT_IF gatt_if=GATT_GET_GATT_IF(conn_id); 899 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 900 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 901 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 902 903 904 GATT_TRACE_API ("GATTC_Read conn_id=%d type=%d", conn_id, type); 905 906 if ( (p_tcb == NULL) || (p_reg==NULL) || (p_read == NULL) || ((type >= GATT_READ_MAX) || (type == 0))) 907 { 908 GATT_TRACE_ERROR("GATT_Read Illegal param: conn_id %d, type 0%d,", conn_id, type); 909 return GATT_ILLEGAL_PARAMETER; 910 } 911 912 if (gatt_is_clcb_allocated(conn_id)) 913 { 914 GATT_TRACE_ERROR("GATTC_Read GATT_BUSY conn_id = %d", conn_id); 915 return GATT_BUSY; 916 } 917 918 if ( (p_clcb = gatt_clcb_alloc(conn_id)) != NULL ) 919 { 920 p_clcb->operation = GATTC_OPTYPE_READ; 921 p_clcb->op_subtype = type; 922 p_clcb->auth_req = p_read->by_handle.auth_req; 923 p_clcb->counter = 0; 924 925 switch (type) 926 { 927 case GATT_READ_BY_TYPE: 928 case GATT_READ_CHAR_VALUE: 929 p_clcb->s_handle = p_read->service.s_handle; 930 p_clcb->e_handle = p_read->service.e_handle; 931 memcpy(&p_clcb->uuid, &p_read->service.uuid, sizeof(tBT_UUID)); 932 break; 933 case GATT_READ_MULTIPLE: 934 p_clcb->s_handle = 0; 935 /* copy multiple handles in CB */ 936 tGATT_READ_MULTI *p_read_multi = 937 (tGATT_READ_MULTI *)osi_malloc(sizeof(tGATT_READ_MULTI)); 938 p_clcb->p_attr_buf = (UINT8*)p_read_multi; 939 memcpy(p_read_multi, &p_read->read_multiple, sizeof(tGATT_READ_MULTI)); 940 case GATT_READ_BY_HANDLE: 941 case GATT_READ_PARTIAL: 942 memset(&p_clcb->uuid, 0, sizeof(tBT_UUID)); 943 p_clcb->s_handle = p_read->by_handle.handle; 944 945 if (type == GATT_READ_PARTIAL) 946 { 947 p_clcb->counter = p_read->partial.offset; 948 } 949 950 break; 951 default: 952 break; 953 } 954 /* start security check */ 955 if (gatt_security_check_start(p_clcb) == FALSE) 956 { 957 status = GATT_NO_RESOURCES; 958 gatt_clcb_dealloc(p_clcb); 959 } 960 } 961 else 962 { 963 status = GATT_NO_RESOURCES; 964 } 965 return status; 966 } 967 968 /******************************************************************************* 969 ** 970 ** Function GATTC_Write 971 ** 972 ** Description This function is called to write the value of an attribute to 973 ** the server. 974 ** 975 ** Parameters conn_id: connection identifier. 976 ** type - attribute write type. 977 ** p_write - write operation parameters. 978 ** 979 ** Returns GATT_SUCCESS if command started successfully. 980 ** 981 *******************************************************************************/ 982 tGATT_STATUS GATTC_Write (UINT16 conn_id, tGATT_WRITE_TYPE type, tGATT_VALUE *p_write) 983 { 984 tGATT_STATUS status = GATT_SUCCESS; 985 tGATT_CLCB *p_clcb; 986 tGATT_VALUE *p; 987 tGATT_IF gatt_if=GATT_GET_GATT_IF(conn_id); 988 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 989 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 990 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 991 992 if ( (p_tcb == NULL) || (p_reg==NULL) || (p_write == NULL) || 993 ((type != GATT_WRITE) && (type != GATT_WRITE_PREPARE) && (type != GATT_WRITE_NO_RSP)) ) 994 { 995 GATT_TRACE_ERROR("GATT_Write Illegal param: conn_id %d, type 0%d,", conn_id, type); 996 return GATT_ILLEGAL_PARAMETER; 997 } 998 999 if (gatt_is_clcb_allocated(conn_id)) 1000 { 1001 GATT_TRACE_ERROR("GATTC_Write GATT_BUSY conn_id = %d", conn_id); 1002 return GATT_BUSY; 1003 } 1004 1005 if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL ) 1006 { 1007 p_clcb->operation = GATTC_OPTYPE_WRITE; 1008 p_clcb->op_subtype = type; 1009 p_clcb->auth_req = p_write->auth_req; 1010 1011 p_clcb->p_attr_buf = (UINT8 *)osi_malloc(sizeof(tGATT_VALUE)); 1012 memcpy(p_clcb->p_attr_buf, (void *)p_write, sizeof(tGATT_VALUE)); 1013 1014 p = (tGATT_VALUE *)p_clcb->p_attr_buf; 1015 if (type == GATT_WRITE_PREPARE) { 1016 p_clcb->start_offset = p_write->offset; 1017 p->offset = 0; 1018 } 1019 1020 if (gatt_security_check_start(p_clcb) == FALSE) { 1021 status = GATT_NO_RESOURCES; 1022 } 1023 1024 if (status == GATT_NO_RESOURCES) 1025 gatt_clcb_dealloc(p_clcb); 1026 } else { 1027 status = GATT_NO_RESOURCES; 1028 } 1029 return status; 1030 } 1031 1032 1033 /******************************************************************************* 1034 ** 1035 ** Function GATTC_ExecuteWrite 1036 ** 1037 ** Description This function is called to send an Execute write request to 1038 ** the server. 1039 ** 1040 ** Parameters conn_id: connection identifier. 1041 ** is_execute - to execute or cancel the prepare write requet(s) 1042 ** 1043 ** Returns GATT_SUCCESS if command started successfully. 1044 ** 1045 *******************************************************************************/ 1046 tGATT_STATUS GATTC_ExecuteWrite (UINT16 conn_id, BOOLEAN is_execute) 1047 { 1048 tGATT_STATUS status = GATT_SUCCESS; 1049 tGATT_CLCB *p_clcb; 1050 tGATT_EXEC_FLAG flag; 1051 tGATT_IF gatt_if=GATT_GET_GATT_IF(conn_id); 1052 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 1053 tGATT_TCB *p_tcb = gatt_get_tcb_by_idx(tcb_idx); 1054 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 1055 1056 GATT_TRACE_API ("GATTC_ExecuteWrite conn_id=%d is_execute=%d", conn_id, is_execute); 1057 1058 if ( (p_tcb == NULL) || (p_reg==NULL) ) 1059 { 1060 GATT_TRACE_ERROR("GATTC_ExecuteWrite Illegal param: conn_id %d", conn_id); 1061 return GATT_ILLEGAL_PARAMETER; 1062 } 1063 1064 if (gatt_is_clcb_allocated(conn_id)) 1065 { 1066 GATT_TRACE_ERROR("GATTC_Write GATT_BUSY conn_id = %d", conn_id); 1067 return GATT_BUSY; 1068 } 1069 1070 if ((p_clcb = gatt_clcb_alloc(conn_id)) != NULL) 1071 { 1072 p_clcb->operation = GATTC_OPTYPE_EXE_WRITE; 1073 flag = is_execute ? GATT_PREP_WRITE_EXEC : GATT_PREP_WRITE_CANCEL; 1074 gatt_send_queue_write_cancel (p_clcb->p_tcb, p_clcb, flag); 1075 } 1076 else 1077 { 1078 GATT_TRACE_ERROR("Unable to allocate client CB for conn_id %d ", conn_id); 1079 status = GATT_NO_RESOURCES; 1080 } 1081 return status; 1082 } 1083 1084 /******************************************************************************* 1085 ** 1086 ** Function GATTC_SendHandleValueConfirm 1087 ** 1088 ** Description This function is called to send a handle value confirmation 1089 ** as response to a handle value notification from server. 1090 ** 1091 ** Parameters conn_id: connection identifier. 1092 ** handle: the handle of the attribute confirmation. 1093 ** 1094 ** Returns GATT_SUCCESS if command started successfully. 1095 ** 1096 *******************************************************************************/ 1097 tGATT_STATUS GATTC_SendHandleValueConfirm (UINT16 conn_id, UINT16 handle) 1098 { 1099 tGATT_STATUS ret = GATT_ILLEGAL_PARAMETER; 1100 tGATT_TCB *p_tcb=gatt_get_tcb_by_idx(GATT_GET_TCB_IDX(conn_id)); 1101 1102 GATT_TRACE_API ("GATTC_SendHandleValueConfirm conn_id=%d handle=0x%x", conn_id, handle); 1103 1104 if (p_tcb) 1105 { 1106 if (p_tcb->ind_count > 0 ) 1107 { 1108 alarm_cancel(p_tcb->ind_ack_timer); 1109 1110 GATT_TRACE_DEBUG ("notif_count=%d ", p_tcb->ind_count); 1111 /* send confirmation now */ 1112 ret = attp_send_cl_msg(p_tcb, 0, GATT_HANDLE_VALUE_CONF, (tGATT_CL_MSG *)&handle); 1113 1114 p_tcb->ind_count = 0; 1115 1116 } 1117 else 1118 { 1119 GATT_TRACE_DEBUG ("GATTC_SendHandleValueConfirm - conn_id: %u - ignored not waiting for indicaiton ack", conn_id); 1120 ret = GATT_SUCCESS; 1121 } 1122 } 1123 else 1124 { 1125 GATT_TRACE_ERROR ("GATTC_SendHandleValueConfirm - Unknown conn_id: %u", conn_id); 1126 } 1127 return ret; 1128 } 1129 1130 1131 /*******************************************************************************/ 1132 /* */ 1133 /* GATT APIs */ 1134 /* */ 1135 /*******************************************************************************/ 1136 /******************************************************************************* 1137 ** 1138 ** Function GATT_SetIdleTimeout 1139 ** 1140 ** Description This function (common to both client and server) sets the idle 1141 ** timeout for a tansport connection 1142 ** 1143 ** Parameter bd_addr: target device bd address. 1144 ** idle_tout: timeout value in seconds. 1145 ** 1146 ** Returns void 1147 ** 1148 *******************************************************************************/ 1149 void GATT_SetIdleTimeout (BD_ADDR bd_addr, UINT16 idle_tout, tBT_TRANSPORT transport) 1150 { 1151 tGATT_TCB *p_tcb; 1152 BOOLEAN status = FALSE; 1153 1154 if ((p_tcb = gatt_find_tcb_by_addr (bd_addr, transport)) != NULL) 1155 { 1156 if (p_tcb->att_lcid == L2CAP_ATT_CID) 1157 { 1158 status = L2CA_SetFixedChannelTout (bd_addr, L2CAP_ATT_CID, idle_tout); 1159 1160 if (idle_tout == GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP) 1161 L2CA_SetIdleTimeoutByBdAddr(p_tcb->peer_bda, 1162 GATT_LINK_IDLE_TIMEOUT_WHEN_NO_APP, BT_TRANSPORT_LE); 1163 } 1164 else 1165 { 1166 status = L2CA_SetIdleTimeout (p_tcb->att_lcid, idle_tout, FALSE); 1167 } 1168 } 1169 1170 GATT_TRACE_API ("GATT_SetIdleTimeout idle_tout=%d status=%d(1-OK 0-not performed)", 1171 idle_tout, status); 1172 } 1173 1174 1175 /******************************************************************************* 1176 ** 1177 ** Function GATT_Register 1178 ** 1179 ** Description This function is called to register an application 1180 ** with GATT 1181 ** 1182 ** Parameter p_app_uuid128: Application UUID 1183 ** p_cb_info: callback functions. 1184 ** 1185 ** Returns 0 for error, otherwise the index of the client registered with GATT 1186 ** 1187 *******************************************************************************/ 1188 tGATT_IF GATT_Register (tBT_UUID *p_app_uuid128, tGATT_CBACK *p_cb_info) 1189 { 1190 tGATT_REG *p_reg; 1191 UINT8 i_gatt_if=0; 1192 tGATT_IF gatt_if=0; 1193 1194 GATT_TRACE_API ("%s", __func__); 1195 gatt_dbg_display_uuid(*p_app_uuid128); 1196 1197 for (i_gatt_if = 0, p_reg = gatt_cb.cl_rcb; i_gatt_if < GATT_MAX_APPS; i_gatt_if++, p_reg++) 1198 { 1199 if (p_reg->in_use && !memcmp(p_app_uuid128->uu.uuid128, p_reg->app_uuid128.uu.uuid128, LEN_UUID_128)) 1200 { 1201 GATT_TRACE_ERROR("application already registered."); 1202 return 0; 1203 } 1204 } 1205 1206 for (i_gatt_if = 0, p_reg = gatt_cb.cl_rcb; i_gatt_if < GATT_MAX_APPS; i_gatt_if++, p_reg++) 1207 { 1208 if (!p_reg->in_use) 1209 { 1210 memset(p_reg, 0 , sizeof(tGATT_REG)); 1211 i_gatt_if++; /* one based number */ 1212 p_reg->app_uuid128 = *p_app_uuid128; 1213 gatt_if = 1214 p_reg->gatt_if = (tGATT_IF)i_gatt_if; 1215 p_reg->app_cb = *p_cb_info; 1216 p_reg->in_use = TRUE; 1217 1218 GATT_TRACE_API ("%s: allocated gatt_if=%d", __func__, gatt_if); 1219 return gatt_if; 1220 } 1221 } 1222 1223 GATT_TRACE_ERROR ("%s: can't Register GATT client, MAX client reached!", __func__); 1224 return 0; 1225 } 1226 1227 1228 /******************************************************************************* 1229 ** 1230 ** Function GATT_Deregister 1231 ** 1232 ** Description This function deregistered the application from GATT. 1233 ** 1234 ** Parameters gatt_if: applicaiton interface. 1235 ** 1236 ** Returns None. 1237 ** 1238 *******************************************************************************/ 1239 void GATT_Deregister (tGATT_IF gatt_if) 1240 { 1241 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 1242 tGATT_TCB *p_tcb; 1243 tGATT_CLCB *p_clcb; 1244 UINT8 i, ii, j; 1245 tGATT_SR_REG *p_sreg; 1246 1247 GATT_TRACE_API ("GATT_Deregister gatt_if=%d", gatt_if); 1248 /* Index 0 is GAP and is never deregistered */ 1249 if ( (gatt_if == 0) || (p_reg == NULL) ) 1250 { 1251 GATT_TRACE_ERROR ("GATT_Deregister with invalid gatt_if: %u", gatt_if); 1252 return; 1253 } 1254 1255 /* stop all services */ 1256 /* todo an applcaiton can not be deregistered if its services is also used by other application 1257 deregisteration need to bed performed in an orderly fashion 1258 no check for now */ 1259 1260 for (ii = 0, p_sreg = gatt_cb.sr_reg; ii < GATT_MAX_SR_PROFILES; ii++, p_sreg++) 1261 { 1262 if (p_sreg->in_use && (p_sreg->gatt_if == gatt_if)) 1263 { 1264 GATTS_StopService(p_sreg->s_hdl); 1265 } 1266 } 1267 1268 /* free all services db buffers if owned by this application */ 1269 gatt_free_srvc_db_buffer_app_id(&p_reg->app_uuid128); 1270 1271 /* When an application deregisters, check remove the link associated with the app */ 1272 1273 for (i=0, p_tcb = gatt_cb.tcb; i < GATT_MAX_PHY_CHANNEL; i++, p_tcb++) 1274 { 1275 if (p_tcb->in_use) 1276 { 1277 if (gatt_get_ch_state(p_tcb) != GATT_CH_CLOSE) 1278 { 1279 gatt_update_app_use_link_flag(gatt_if, p_tcb, FALSE, TRUE); 1280 } 1281 1282 for (j = 0, p_clcb= &gatt_cb.clcb[j]; j < GATT_CL_MAX_LCB; j++, p_clcb++) 1283 { 1284 if (p_clcb->in_use && 1285 (p_clcb->p_reg->gatt_if == gatt_if) && 1286 (p_clcb->p_tcb->tcb_idx == p_tcb->tcb_idx)) 1287 { 1288 alarm_cancel(p_clcb->gatt_rsp_timer_ent); 1289 gatt_clcb_dealloc (p_clcb); 1290 break; 1291 } 1292 } 1293 } 1294 } 1295 1296 gatt_deregister_bgdev_list(gatt_if); 1297 /* update the listen mode */ 1298 #if (defined(BLE_PERIPHERAL_MODE_SUPPORT) && (BLE_PERIPHERAL_MODE_SUPPORT == TRUE)) 1299 GATT_Listen(gatt_if, FALSE, NULL); 1300 #endif 1301 1302 memset (p_reg, 0, sizeof(tGATT_REG)); 1303 } 1304 1305 1306 /******************************************************************************* 1307 ** 1308 ** Function GATT_StartIf 1309 ** 1310 ** Description This function is called after registration to start receiving 1311 ** callbacks for registered interface. Function may call back 1312 ** with connection status and queued notifications 1313 ** 1314 ** Parameter gatt_if: applicaiton interface. 1315 ** 1316 ** Returns None. 1317 ** 1318 *******************************************************************************/ 1319 void GATT_StartIf (tGATT_IF gatt_if) 1320 { 1321 tGATT_REG *p_reg; 1322 tGATT_TCB *p_tcb; 1323 BD_ADDR bda; 1324 UINT8 start_idx, found_idx; 1325 UINT16 conn_id; 1326 tGATT_TRANSPORT transport ; 1327 1328 GATT_TRACE_API ("GATT_StartIf gatt_if=%d", gatt_if); 1329 if ((p_reg = gatt_get_regcb(gatt_if)) != NULL) 1330 { 1331 start_idx = 0; 1332 while (gatt_find_the_connected_bda(start_idx, bda, &found_idx, &transport)) 1333 { 1334 p_tcb = gatt_find_tcb_by_addr(bda, transport); 1335 if (p_reg->app_cb.p_conn_cb && p_tcb) 1336 { 1337 conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if); 1338 (*p_reg->app_cb.p_conn_cb)(gatt_if, bda, conn_id, TRUE, 0, transport); 1339 } 1340 start_idx = ++found_idx; 1341 } 1342 } 1343 } 1344 1345 1346 /******************************************************************************* 1347 ** 1348 ** Function GATT_Connect 1349 ** 1350 ** Description This function initiate a connecttion to a remote device on GATT 1351 ** channel. 1352 ** 1353 ** Parameters gatt_if: applicaiton interface 1354 ** bd_addr: peer device address. 1355 ** is_direct: is a direct conenection or a background auto connection 1356 ** 1357 ** Returns TRUE if connection started; FALSE if connection start failure. 1358 ** 1359 *******************************************************************************/ 1360 BOOLEAN GATT_Connect (tGATT_IF gatt_if, BD_ADDR bd_addr, BOOLEAN is_direct, 1361 tBT_TRANSPORT transport, BOOLEAN opportunistic) 1362 { 1363 tGATT_REG *p_reg; 1364 BOOLEAN status = FALSE; 1365 1366 GATT_TRACE_API ("GATT_Connect gatt_if=%d", gatt_if); 1367 1368 /* Make sure app is registered */ 1369 if ((p_reg = gatt_get_regcb(gatt_if)) == NULL) 1370 { 1371 GATT_TRACE_ERROR("GATT_Connect - gatt_if =%d is not registered", gatt_if); 1372 return(FALSE); 1373 } 1374 1375 if (is_direct) 1376 status = gatt_act_connect (p_reg, bd_addr, transport, opportunistic); 1377 else 1378 { 1379 if (transport == BT_TRANSPORT_LE) 1380 status = gatt_update_auto_connect_dev(gatt_if,TRUE, bd_addr, TRUE); 1381 else 1382 { 1383 GATT_TRACE_ERROR("Unsupported transport for background connection"); 1384 } 1385 } 1386 1387 return status; 1388 1389 } 1390 1391 /******************************************************************************* 1392 ** 1393 ** Function GATT_CancelConnect 1394 ** 1395 ** Description This function terminate the connection initaition to a remote 1396 ** device on GATT channel. 1397 ** 1398 ** Parameters gatt_if: client interface. If 0 used as unconditionally disconnect, 1399 ** typically used for direct connection cancellation. 1400 ** bd_addr: peer device address. 1401 ** 1402 ** Returns TRUE if connection started; FALSE if connection start failure. 1403 ** 1404 *******************************************************************************/ 1405 BOOLEAN GATT_CancelConnect (tGATT_IF gatt_if, BD_ADDR bd_addr, BOOLEAN is_direct){ 1406 tGATT_REG *p_reg; 1407 tGATT_TCB *p_tcb; 1408 BOOLEAN status = TRUE; 1409 tGATT_IF temp_gatt_if; 1410 UINT8 start_idx, found_idx; 1411 1412 GATT_TRACE_API ("GATT_CancelConnect gatt_if=%d", gatt_if); 1413 1414 if ((gatt_if != 0) && ((p_reg = gatt_get_regcb(gatt_if)) == NULL)) 1415 { 1416 GATT_TRACE_ERROR("GATT_CancelConnect - gatt_if =%d is not registered", gatt_if); 1417 return(FALSE); 1418 } 1419 1420 if (is_direct) 1421 { 1422 if (!gatt_if) 1423 { 1424 GATT_TRACE_DEBUG("GATT_CancelConnect - unconditional"); 1425 start_idx = 0; 1426 /* only LE connection can be cancelled */ 1427 p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE); 1428 if (p_tcb && gatt_num_apps_hold_link(p_tcb)) 1429 { 1430 while (status && gatt_find_app_hold_link(p_tcb, start_idx, &found_idx, &temp_gatt_if)) 1431 { 1432 status = gatt_cancel_open(temp_gatt_if, bd_addr); 1433 start_idx = ++found_idx; 1434 } 1435 } 1436 else 1437 { 1438 GATT_TRACE_ERROR("GATT_CancelConnect - no app found"); 1439 status = FALSE; 1440 } 1441 } 1442 else 1443 { 1444 status = gatt_cancel_open(gatt_if, bd_addr); 1445 } 1446 } 1447 else 1448 { 1449 if (!gatt_if) 1450 { 1451 if (gatt_get_num_apps_for_bg_dev(bd_addr)) 1452 { 1453 while (gatt_find_app_for_bg_dev(bd_addr, &temp_gatt_if)) 1454 gatt_remove_bg_dev_for_app(temp_gatt_if, bd_addr); 1455 } 1456 else 1457 { 1458 GATT_TRACE_ERROR("GATT_CancelConnect -no app associated with the bg device for unconditional removal"); 1459 status = FALSE; 1460 } 1461 } 1462 else 1463 { 1464 status = gatt_remove_bg_dev_for_app(gatt_if, bd_addr); 1465 } 1466 } 1467 1468 return status; 1469 } 1470 1471 /******************************************************************************* 1472 ** 1473 ** Function GATT_Disconnect 1474 ** 1475 ** Description This function disconnect the GATT channel for this registered 1476 ** application. 1477 ** 1478 ** Parameters conn_id: connection identifier. 1479 ** 1480 ** Returns GATT_SUCCESS if disconnected. 1481 ** 1482 *******************************************************************************/ 1483 tGATT_STATUS GATT_Disconnect (UINT16 conn_id) 1484 { 1485 tGATT_STATUS ret = GATT_ILLEGAL_PARAMETER; 1486 tGATT_TCB *p_tcb=NULL; 1487 tGATT_IF gatt_if=GATT_GET_GATT_IF(conn_id); 1488 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 1489 1490 GATT_TRACE_API ("GATT_Disconnect conn_id=%d ", conn_id); 1491 1492 p_tcb = gatt_get_tcb_by_idx(tcb_idx); 1493 1494 if (p_tcb) 1495 { 1496 gatt_update_app_use_link_flag(gatt_if, p_tcb, FALSE, TRUE); 1497 ret = GATT_SUCCESS; 1498 } 1499 return ret; 1500 } 1501 1502 1503 /******************************************************************************* 1504 ** 1505 ** Function GATT_GetConnectionInfor 1506 ** 1507 ** Description This function use conn_id to find its associated BD address and applciation 1508 ** interface 1509 ** 1510 ** Parameters conn_id: connection id (input) 1511 ** p_gatt_if: applicaiton interface (output) 1512 ** bd_addr: peer device address. (output) 1513 ** 1514 ** Returns TRUE the ligical link information is found for conn_id 1515 ** 1516 *******************************************************************************/ 1517 BOOLEAN GATT_GetConnectionInfor(UINT16 conn_id, tGATT_IF *p_gatt_if, BD_ADDR bd_addr, 1518 tBT_TRANSPORT *p_transport) 1519 { 1520 1521 tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id); 1522 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 1523 UINT8 tcb_idx = GATT_GET_TCB_IDX(conn_id); 1524 tGATT_TCB *p_tcb= gatt_get_tcb_by_idx(tcb_idx); 1525 BOOLEAN status=FALSE; 1526 1527 GATT_TRACE_API ("GATT_GetConnectionInfor conn_id=%d", conn_id); 1528 1529 if (p_tcb && p_reg ) 1530 { 1531 memcpy(bd_addr, p_tcb->peer_bda, BD_ADDR_LEN); 1532 *p_gatt_if = gatt_if; 1533 *p_transport = p_tcb->transport; 1534 status = TRUE; 1535 } 1536 return status; 1537 } 1538 1539 1540 /******************************************************************************* 1541 ** 1542 ** Function GATT_GetConnIdIfConnected 1543 ** 1544 ** Description This function find the conn_id if the logical link for BD address 1545 ** and applciation interface is connected 1546 ** 1547 ** Parameters gatt_if: applicaiton interface (input) 1548 ** bd_addr: peer device address. (input) 1549 ** p_conn_id: connection id (output) 1550 ** transport: transport option 1551 ** 1552 ** Returns TRUE the logical link is connected 1553 ** 1554 *******************************************************************************/ 1555 BOOLEAN GATT_GetConnIdIfConnected(tGATT_IF gatt_if, BD_ADDR bd_addr, UINT16 *p_conn_id, 1556 tBT_TRANSPORT transport) 1557 { 1558 tGATT_REG *p_reg = gatt_get_regcb(gatt_if); 1559 tGATT_TCB *p_tcb= gatt_find_tcb_by_addr(bd_addr, transport); 1560 BOOLEAN status=FALSE; 1561 1562 if (p_reg && p_tcb && (gatt_get_ch_state(p_tcb) == GATT_CH_OPEN) ) 1563 { 1564 *p_conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, gatt_if); 1565 status = TRUE; 1566 } 1567 1568 GATT_TRACE_API ("GATT_GetConnIdIfConnected status=%d", status); 1569 return status; 1570 } 1571 1572 1573 /******************************************************************************* 1574 ** 1575 ** Function GATT_Listen 1576 ** 1577 ** Description This function start or stop LE advertisement and listen for 1578 ** connection. 1579 ** 1580 ** Parameters gatt_if: applicaiton interface 1581 ** p_bd_addr: listen for specific address connection, or NULL for 1582 ** listen to all device connection. 1583 ** start: start or stop listening. 1584 ** 1585 ** Returns TRUE if advertisement is started; FALSE if adv start failure. 1586 ** 1587 *******************************************************************************/ 1588 BOOLEAN GATT_Listen (tGATT_IF gatt_if, BOOLEAN start, BD_ADDR_PTR bd_addr) 1589 { 1590 tGATT_REG *p_reg; 1591 1592 GATT_TRACE_API ("GATT_Listen gatt_if=%d", gatt_if); 1593 1594 /* Make sure app is registered */ 1595 if ((p_reg = gatt_get_regcb(gatt_if)) == NULL) 1596 { 1597 GATT_TRACE_ERROR("GATT_Listen - gatt_if =%d is not registered", gatt_if); 1598 return(FALSE); 1599 } 1600 1601 if (bd_addr != NULL) 1602 { 1603 gatt_update_auto_connect_dev(gatt_if,start, bd_addr, FALSE); 1604 } 1605 else 1606 { 1607 p_reg->listening = start ? GATT_LISTEN_TO_ALL : GATT_LISTEN_TO_NONE; 1608 } 1609 1610 return gatt_update_listen_mode(); 1611 } 1612 1613 #endif 1614 1615
