1 /****************************************************************************** 2 * 3 * Copyright (C) 2009-2013 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 #include "bt_target.h" 20 21 #if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE) 22 23 #include <string.h> 24 #include "gap_int.h" 25 #include "gap_api.h" 26 #include "gattdefs.h" 27 #include "gatt_api.h" 28 #include "gatt_int.h" 29 #include "btm_int.h" 30 #include "hcimsgs.h" 31 32 #define GAP_CHAR_ICON_SIZE 2 33 #define GAP_CHAR_DEV_NAME_SIZE 248 34 #define GAP_BLE_PRIVACY_FLAG_SIZE 1 35 36 #define GAP_MAX_NUM_INC_SVR 0 37 #define GAP_MAX_ATTR_NUM (2 * GAP_MAX_CHAR_NUM + GAP_MAX_NUM_INC_SVR + 1) 38 #define GAP_MAX_CHAR_VALUE_SIZE (30 + GAP_CHAR_DEV_NAME_SIZE) 39 40 41 #ifndef GAP_ATTR_DB_SIZE 42 #define GAP_ATTR_DB_SIZE GATT_DB_MEM_SIZE(GAP_MAX_NUM_INC_SVR, GAP_MAX_CHAR_NUM, GAP_MAX_CHAR_VALUE_SIZE) 43 #endif 44 45 /* privacy flag readable and writable with encryption on */ 46 #ifndef GAP_BLE_PRIVACY_FLAG_PERM 47 #define GAP_BLE_PRIVACY_FLAG_PERM (GATT_PERM_READ|GATT_PERM_WRITE) 48 #endif 49 50 #define GATT_READ_GAP_PRIVACY_FLAG 1 51 #define GATT_SET_GAP_PRIVACY_FLAG 2 52 #define GATT_READ_GAP_REMOTE_NAME 3 53 #define GATT_UPDATE_RECONN_ADDR 4 54 55 #define GAP_BLE_PRIVACY_UNKNOWN 0xff 56 57 static void gap_ble_s_attr_request_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE op_code, tGATTS_DATA *p_data); 58 59 /* client connection callback */ 60 static void gap_ble_c_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected, tGATT_DISCONN_REASON reason); 61 static void gap_ble_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data); 62 63 static tGATT_CBACK gap_cback = 64 { 65 gap_ble_c_connect_cback, 66 gap_ble_c_cmpl_cback, 67 NULL, 68 NULL, 69 gap_ble_s_attr_request_cback 70 }; 71 72 73 74 /******************************************************************************* 75 ** 76 ** Function gap_find_clcb_by_bd_addr 77 ** 78 ** Description The function searches all LCB with macthing bd address 79 ** 80 ** Returns total number of clcb found. 81 ** 82 *******************************************************************************/ 83 tGAP_CLCB *gap_find_clcb_by_bd_addr(BD_ADDR bda) 84 { 85 UINT8 i_clcb; 86 tGAP_CLCB *p_clcb = NULL; 87 88 for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) 89 { 90 if (p_clcb->in_use && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN)) 91 { 92 return p_clcb; 93 } 94 } 95 96 return NULL; 97 } 98 99 /******************************************************************************* 100 ** 101 ** Function gap_ble_find_clcb_by_conn_id 102 ** 103 ** Description The function searches all LCB with macthing connection ID 104 ** 105 ** Returns total number of clcb found. 106 ** 107 *******************************************************************************/ 108 tGAP_CLCB *gap_ble_find_clcb_by_conn_id(UINT16 conn_id) 109 { 110 UINT8 i_clcb; 111 tGAP_CLCB *p_clcb = NULL; 112 113 for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) 114 { 115 if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id) 116 { 117 return p_clcb; 118 } 119 } 120 121 return p_clcb; 122 } 123 124 /******************************************************************************* 125 ** 126 ** Function gap_clcb_alloc 127 ** 128 ** Description The function allocates a GAP connection link control block 129 ** 130 ** Returns NULL if not found. Otherwise pointer to the connection link block. 131 ** 132 *******************************************************************************/ 133 tGAP_CLCB *gap_clcb_alloc (UINT16 conn_id, BD_ADDR bda) 134 { 135 UINT8 i_clcb = 0; 136 tGAP_CLCB *p_clcb = NULL; 137 138 for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) 139 { 140 if (!p_clcb->in_use) 141 { 142 p_clcb->in_use = TRUE; 143 p_clcb->conn_id = conn_id; 144 p_clcb->connected = TRUE; 145 memcpy (p_clcb->bda, bda, BD_ADDR_LEN); 146 break; 147 } 148 } 149 return p_clcb; 150 } 151 152 /******************************************************************************* 153 ** 154 ** Function gap_find_alloc_clcb 155 ** 156 ** Description The function find or allocates a GAP connection link control block 157 ** 158 ** Returns NULL if not found. Otherwise pointer to the connection link block. 159 ** 160 *******************************************************************************/ 161 tGAP_CLCB *gap_find_alloc_clcb (UINT16 conn_id, BD_ADDR bda) 162 { 163 UINT8 i_clcb = 0; 164 tGAP_CLCB *p_clcb = NULL; 165 166 for (i_clcb = 0, p_clcb= gap_cb.clcb; i_clcb < GAP_MAX_CL; i_clcb++, p_clcb++) 167 { 168 if (!p_clcb->in_use) 169 { 170 p_clcb->in_use = TRUE; 171 p_clcb->conn_id = conn_id; 172 p_clcb->connected = TRUE; 173 memcpy (p_clcb->bda, bda, BD_ADDR_LEN); 174 break; 175 } 176 } 177 return p_clcb; 178 } 179 180 /******************************************************************************* 181 ** 182 ** Function gap_get_conn_id_if_connected 183 ** 184 ** Description This function returns a connecttion handle to a ATT server 185 ** if the server is already connected 186 ** 187 ** Parameters client_if: client interface. 188 ** bd_addr: peer device address. 189 ** 190 ** Returns Connection handle or invalid handle value 191 ** 192 *******************************************************************************/ 193 UINT16 gap_get_conn_id_if_connected (BD_ADDR bd_addr) 194 { 195 tGAP_CLCB *p_clcb; 196 UINT16 i; 197 198 GAP_TRACE_EVENT2 ("gap_get_conn_id_if_connected() - BDA: %08x%04x ", 199 (bd_addr[0]<<24)+(bd_addr[1]<<16)+(bd_addr[2]<<8)+bd_addr[3], 200 (bd_addr[4]<<8)+bd_addr[5]); 201 202 for (i = 0, p_clcb = gap_cb.clcb; i < GAP_MAX_CL; i++, p_clcb++) 203 { 204 if (p_clcb->in_use && p_clcb->connected && !memcmp(p_clcb->bda, bd_addr, BD_ADDR_LEN) ) 205 { 206 return(p_clcb->conn_id); 207 } 208 } 209 210 /* If here, failed to allocate a client control block */ 211 GATT_TRACE_DEBUG0 ("gap_get_conn_id_if_connected: not connected"); 212 return(GATT_INVALID_CONN_ID); 213 } 214 215 /******************************************************************************* 216 ** 217 ** Function gap_ble_enqueue_op 218 ** 219 ** Description enqueue a GAP operation when GAP client is busy 220 ** 221 ** Returns void 222 ** 223 *******************************************************************************/ 224 void gap_ble_enqueue_op( tGAP_CLCB * p_clcb, UINT8 op, BD_ADDR reconn_addr, UINT8 privacy_flag, void *p_cback) 225 { 226 tGAP_BLE_PENDING_OP *p_op = (tGAP_BLE_PENDING_OP *)GKI_getbuf(sizeof(tGAP_BLE_PENDING_OP)); 227 228 if (p_op != NULL) 229 { 230 p_op->op = op; 231 p_op->p_pending_cback = p_cback; 232 233 if (op == GATT_SET_GAP_PRIVACY_FLAG) 234 p_op->pending_data.privacy_flag = privacy_flag; 235 else if (op == GATT_UPDATE_RECONN_ADDR) 236 memcpy(p_op->pending_data.reconn_addr, reconn_addr, BD_ADDR_LEN); 237 238 GKI_enqueue(&p_clcb->pending_op_q, p_op); 239 } 240 } 241 242 /******************************************************************************* 243 ** 244 ** Function gap_ble_process_pending_op 245 ** 246 ** Description get next pending operation and process it 247 ** 248 ** Returns void 249 ** 250 *******************************************************************************/ 251 static BOOLEAN gap_ble_process_pending_op(tGAP_CLCB *p_clcb) 252 { 253 tGAP_BLE_PENDING_OP *p_pending_op = (tGAP_BLE_PENDING_OP *)GKI_dequeue(&p_clcb->pending_op_q); 254 BOOLEAN started = FALSE; 255 256 if (p_pending_op != NULL) 257 { 258 if (p_pending_op->op == GATT_UPDATE_RECONN_ADDR) 259 { 260 GAP_BleUpdateReconnectAddr( p_clcb->bda, 261 p_pending_op->pending_data.reconn_addr, 262 (tGAP_BLE_RECONN_ADDR_CBACK *)p_pending_op->p_pending_cback); 263 started = TRUE; 264 } 265 GKI_freebuf(p_pending_op); 266 } 267 else 268 { 269 GAP_TRACE_EVENT0("No pending operation"); 270 } 271 272 return started; 273 } 274 275 /******************************************************************************* 276 ** GAP Attributes Database Request callback 277 *******************************************************************************/ 278 tGATT_STATUS gap_read_attr_value (UINT16 handle, tGATT_VALUE *p_value, BOOLEAN is_long) 279 { 280 tGAP_ATTR *p_db_attr = gap_cb.gatt_attr; 281 UINT8 *p = p_value->value, i; 282 UINT16 offset = p_value->offset; 283 UINT8 *p_dev_name = NULL; 284 285 for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++) 286 { 287 if (handle == p_db_attr->handle) 288 { 289 if (p_db_attr->uuid != GATT_UUID_GAP_DEVICE_NAME && 290 is_long == TRUE) 291 return GATT_NOT_LONG; 292 293 switch (p_db_attr->uuid) 294 { 295 case GATT_UUID_GAP_DEVICE_NAME: 296 BTM_ReadLocalDeviceName((char **)&p_dev_name); 297 if (strlen ((char *)p_dev_name) > GATT_MAX_ATTR_LEN) 298 p_value->len = GATT_MAX_ATTR_LEN; 299 else 300 p_value->len = (UINT16)strlen ((char *)p_dev_name); 301 302 if (offset > p_value->len) 303 return GATT_INVALID_OFFSET; 304 else 305 { 306 p_value->len -= offset; 307 p_dev_name += offset; 308 ARRAY_TO_STREAM(p, p_dev_name, p_value->len); 309 GAP_TRACE_EVENT1("GATT_UUID_GAP_DEVICE_NAME len=0x%04x", p_value->len); 310 } 311 break; 312 313 case GATT_UUID_GAP_ICON: 314 UINT16_TO_STREAM(p, p_db_attr->attr_value.icon); 315 p_value->len = 2; 316 break; 317 318 case GATT_UUID_GAP_PRIVACY_FLAG: 319 UINT8_TO_STREAM(p, p_db_attr->attr_value.privacy); 320 p_value->len = 1; 321 break; 322 323 case GATT_UUID_GAP_RECONN_ADDR: 324 p_value->len = BD_ADDR_LEN; 325 BDADDR_TO_STREAM(p, p_db_attr->attr_value.reconn_bda); 326 break; 327 328 case GATT_UUID_GAP_PREF_CONN_PARAM: 329 UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.int_min); /* int_min */ 330 UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.int_max); /* int_max */ 331 UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.latency); /* latency */ 332 UINT16_TO_STREAM(p, p_db_attr->attr_value.conn_param.sp_tout); /* sp_tout */ 333 p_value->len =8; 334 break; 335 } 336 return GATT_SUCCESS; 337 } 338 } 339 return GATT_NOT_FOUND; 340 } 341 342 /******************************************************************************* 343 ** GAP Attributes Database Read/Read Blob Request process 344 *******************************************************************************/ 345 tGATT_STATUS gap_proc_read (tGATTS_REQ_TYPE type, tGATT_READ_REQ *p_data, tGATTS_RSP *p_rsp) 346 { 347 tGATT_STATUS status = GATT_NO_RESOURCES; 348 349 if (p_data->is_long) 350 p_rsp->attr_value.offset = p_data->offset; 351 352 p_rsp->attr_value.handle = p_data->handle; 353 354 status = gap_read_attr_value(p_data->handle, &p_rsp->attr_value, p_data->is_long); 355 356 return status; 357 } 358 BOOLEAN gap_read_local_reconn_addr(BD_ADDR_PTR reconn_bda) 359 { 360 BD_ADDR dummy_bda = {0}; 361 362 if (memcmp(gap_cb.reconn_bda, dummy_bda, BD_ADDR_LEN) != 0) 363 { 364 memcpy(reconn_bda, gap_cb.reconn_bda, BD_ADDR_LEN); 365 return TRUE; 366 } 367 else 368 return FALSE; 369 } 370 371 /****************************************************************************** 372 ** 373 ** Function gap_proc_write_req 374 ** 375 ** Description GAP ATT server process a write request. 376 ** 377 ** Returns void. 378 ** 379 *******************************************************************************/ 380 UINT8 gap_proc_write_req( tGATTS_REQ_TYPE type, tGATT_WRITE_REQ *p_data) 381 { 382 tGAP_ATTR *p_db_attr = gap_cb.gatt_attr; 383 UINT8 i; 384 385 for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++) 386 { 387 if (p_data-> handle == p_db_attr->handle) 388 { 389 if (p_data->offset != 0) return GATT_NOT_LONG; 390 if (p_data->is_prep) return GATT_REQ_NOT_SUPPORTED; 391 392 /* DO NOT SUPPORT RECONNECTION ADDRESS FOR NOW 393 394 if (p_db_attr->uuid == GATT_UUID_GAP_RECONN_ADDR) 395 { 396 if (!btm_cb.ble_ctr_cb.privacy) 397 return GATT_WRITE_NOT_PERMIT; 398 if (p_data->len != BD_ADDR_LEN) return GATT_INVALID_ATTR_LEN; 399 400 STREAM_TO_BDADDR(p_db_attr->attr_value.reconn_bda, p); 401 // write direct connection address 402 memcpy(&gap_cb.reconn_bda, p_db_attr->attr_value.reconn_bda, BD_ADDR_LEN); 403 404 return GATT_SUCCESS; 405 } 406 else 407 */ 408 return GATT_WRITE_NOT_PERMIT; 409 } 410 } 411 return GATT_NOT_FOUND; 412 413 } 414 415 /****************************************************************************** 416 ** 417 ** Function gap_ble_s_attr_request_cback 418 ** 419 ** Description GAP ATT server attribute access request callback. 420 ** 421 ** Returns void. 422 ** 423 *******************************************************************************/ 424 void gap_ble_s_attr_request_cback (UINT16 conn_id, UINT32 trans_id, 425 tGATTS_REQ_TYPE type, tGATTS_DATA *p_data) 426 { 427 UINT8 status = GATT_INVALID_PDU; 428 tGATTS_RSP rsp_msg; 429 BOOLEAN ignore = FALSE; 430 431 GAP_TRACE_EVENT1("gap_ble_s_attr_request_cback : recv type (0x%02x)", type); 432 433 memset(&rsp_msg, 0, sizeof(tGATTS_RSP)); 434 435 switch (type) 436 { 437 case GATTS_REQ_TYPE_READ: 438 status = gap_proc_read(type, &p_data->read_req, &rsp_msg); 439 break; 440 441 case GATTS_REQ_TYPE_WRITE: 442 if (!p_data->write_req.need_rsp) 443 ignore = TRUE; 444 445 status = gap_proc_write_req(type, &p_data->write_req); 446 break; 447 448 case GATTS_REQ_TYPE_WRITE_EXEC: 449 ignore = TRUE; 450 GAP_TRACE_EVENT0("Ignore GATTS_REQ_TYPE_WRITE_EXEC" ); 451 break; 452 453 case GATTS_REQ_TYPE_MTU: 454 GAP_TRACE_EVENT1("Get MTU exchange new mtu size: %d", p_data->mtu); 455 ignore = TRUE; 456 break; 457 458 default: 459 GAP_TRACE_EVENT1("Unknown/unexpected LE GAP ATT request: 0x%02x", type); 460 break; 461 } 462 463 if (!ignore) 464 GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg); 465 } 466 467 /******************************************************************************* 468 ** 469 ** Function btm_ble_att_db_init 470 ** 471 ** Description GAP ATT database initalization. 472 ** 473 ** Returns void. 474 ** 475 *******************************************************************************/ 476 void gap_attr_db_init(void) 477 { 478 tBT_UUID app_uuid = {LEN_UUID_128,{0}}; 479 tBT_UUID uuid = {LEN_UUID_16,{UUID_SERVCLASS_GAP_SERVER}}; 480 UINT16 service_handle; 481 tGAP_ATTR *p_db_attr = &gap_cb.gatt_attr[0]; 482 tGATT_STATUS status; 483 484 /* Fill our internal UUID with a fixed pattern 0x82 */ 485 memset (&app_uuid.uu.uuid128, 0x82, LEN_UUID_128); 486 memset(gap_cb.gatt_attr, 0, sizeof(tGAP_ATTR) *GAP_MAX_CHAR_NUM); 487 488 gap_cb.gatt_if = GATT_Register(&app_uuid, &gap_cback); 489 490 GATT_StartIf(gap_cb.gatt_if); 491 492 /* Create a GAP service */ 493 service_handle = GATTS_CreateService (gap_cb.gatt_if, &uuid, 0, GAP_MAX_ATTR_NUM, TRUE); 494 495 GAP_TRACE_EVENT1 ("gap_attr_db_init service_handle = %d", service_handle); 496 497 /* add Device Name Characteristic 498 */ 499 uuid.len = LEN_UUID_16; 500 uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_DEVICE_NAME; 501 p_db_attr->handle = GATTS_AddCharacteristic(service_handle, &uuid, GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ); 502 p_db_attr ++; 503 504 /* add Icon characteristic 505 */ 506 uuid.uu.uuid16 = p_db_attr->uuid = GATT_UUID_GAP_ICON; 507 p_db_attr->handle = GATTS_AddCharacteristic(service_handle, 508 &uuid, 509 GATT_PERM_READ, 510 GATT_CHAR_PROP_BIT_READ); 511 p_db_attr ++; 512 513 /* start service now */ 514 memset (&app_uuid.uu.uuid128, 0x81, LEN_UUID_128); 515 516 status = GATTS_StartService(gap_cb.gatt_if, service_handle, GAP_TRANSPORT_SUPPORTED ); 517 518 GAP_TRACE_EVENT3 ("GAP App gatt_if: %d s_hdl = %d start_status=%d", 519 gap_cb.gatt_if, service_handle, status); 520 521 522 523 } 524 525 /******************************************************************************* 526 ** 527 ** Function GAP_BleAttrDBUpdate 528 ** 529 ** Description GAP ATT database update. 530 ** 531 ** Returns void. 532 ** 533 *******************************************************************************/ 534 void GAP_BleAttrDBUpdate(UINT16 attr_uuid, tGAP_BLE_ATTR_VALUE *p_value) 535 { 536 tGAP_ATTR *p_db_attr = gap_cb.gatt_attr; 537 UINT8 i = 0; 538 539 GAP_TRACE_EVENT1("GAP_BleAttrDBUpdate attr_uuid=0x%04x", attr_uuid); 540 541 for (i = 0; i < GAP_MAX_CHAR_NUM; i ++, p_db_attr ++) 542 { 543 if (p_db_attr->uuid == attr_uuid) 544 { 545 GAP_TRACE_EVENT1("Found attr_uuid=0x%04x", attr_uuid); 546 547 switch (attr_uuid) 548 { 549 case GATT_UUID_GAP_ICON: 550 p_db_attr->attr_value.icon = p_value->icon; 551 break; 552 553 case GATT_UUID_GAP_PREF_CONN_PARAM: 554 memcpy((void *)&p_db_attr->attr_value.conn_param, (const void *)&p_value->conn_param, sizeof(tGAP_BLE_PREF_PARAM)); 555 break; 556 557 case GATT_UUID_GAP_DEVICE_NAME: 558 BTM_SetLocalDeviceName((char *)p_value->p_dev_name); 559 break; 560 561 } 562 break; 563 } 564 } 565 566 return; 567 } 568 569 /******************************************************************************* 570 ** 571 ** Function gap_ble_cl_op_cmpl 572 ** 573 ** Description GAP client operation complete callback 574 ** 575 ** Returns void 576 ** 577 *******************************************************************************/ 578 void gap_ble_cl_op_cmpl(tGAP_CLCB *p_clcb, BOOLEAN status, UINT16 len, UINT8 *p_name) 579 { 580 tGAP_BLE_DEV_NAME_CBACK *p_dev_name_cback = (tGAP_BLE_DEV_NAME_CBACK *)(p_clcb->p_cback); 581 UINT16 op = p_clcb->cl_op_uuid; 582 583 GAP_TRACE_EVENT1("gap_ble_cl_op_cmpl status: %d", status); 584 585 p_clcb->cl_op_uuid = 0; 586 p_clcb->p_cback=NULL; 587 588 if (!gap_ble_process_pending_op(p_clcb) && op != 0) 589 GATT_Disconnect(p_clcb->conn_id); 590 591 if (p_dev_name_cback) 592 { 593 GAP_TRACE_EVENT0("calling gap_ble_cl_op_cmpl"); 594 595 if (op == GATT_UUID_GAP_DEVICE_NAME) 596 (* p_dev_name_cback)(status, p_clcb->bda, len, (char *)p_name); 597 } 598 599 } 600 601 /******************************************************************************* 602 ** 603 ** Function gap_ble_c_connect_cback 604 ** 605 ** Description Client connection callback. 606 ** 607 ** Returns void 608 ** 609 *******************************************************************************/ 610 static void gap_ble_c_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, 611 BOOLEAN connected, tGATT_DISCONN_REASON reason) 612 { 613 tGAP_CLCB *p_clcb = gap_find_clcb_by_bd_addr (bda); 614 UINT16 cl_op_uuid; 615 616 GAP_TRACE_EVENT5 ("gap_ble_c_connect_cback: from %08x%04x connected:%d conn_id=%d reason = 0x%04x", 617 (bda[0]<<24)+(bda[1]<<16)+(bda[2]<<8)+bda[3], 618 (bda[4]<<8)+bda[5], connected, conn_id, reason); 619 620 621 if (connected) 622 { 623 if (p_clcb == NULL) 624 { 625 if ((p_clcb = gap_clcb_alloc(conn_id, bda))== NULL) 626 { 627 GAP_TRACE_ERROR0 ("gap_ble_c_connect_cback: no_resource"); 628 return; 629 } 630 } 631 p_clcb->conn_id = conn_id; 632 p_clcb->connected = TRUE; 633 634 /* Do not use reconnection address for now --> 635 check privacy enabled? set reconnect address 636 btm_ble_update_reconnect_address(bda);*/ 637 } 638 else 639 { 640 if (p_clcb != NULL) 641 p_clcb->connected = FALSE; 642 } 643 644 if (p_clcb) 645 { 646 cl_op_uuid = p_clcb->cl_op_uuid; 647 648 GAP_TRACE_EVENT1 ("cl_op_uuid=0x%04x", cl_op_uuid ); 649 650 if (p_clcb->connected) 651 { 652 p_clcb->cl_op_uuid = 0; 653 if (cl_op_uuid == GATT_UUID_GAP_DEVICE_NAME) 654 { 655 GAP_BleReadPeerDevName (bda, (tGAP_BLE_DEV_NAME_CBACK *)p_clcb->p_cback); 656 } 657 } 658 /* current link disconnect */ 659 else 660 { 661 gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL); 662 memset(p_clcb, 0, sizeof(tGAP_CLCB)); 663 } 664 } 665 666 } 667 668 /******************************************************************************* 669 ** 670 ** Function gap_ble_c_cmpl_cback 671 ** 672 ** Description Client operation complete callback. 673 ** 674 ** Returns void 675 ** 676 *******************************************************************************/ 677 static void gap_ble_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data) 678 679 { 680 tGAP_CLCB *p_clcb = gap_ble_find_clcb_by_conn_id(conn_id); 681 UINT16 op_type; 682 UINT16 min, max, latency, tout; 683 UINT16 len; 684 UINT8 *pp; 685 686 if (p_clcb == NULL) 687 return; 688 689 op_type = p_clcb->cl_op_uuid; 690 691 GAP_TRACE_EVENT3 ("gap_ble_c_cmpl_cback() - op_code: 0x%02x status: 0x%02x read_type: 0x%04x", op, status, op_type); 692 /* Currently we only issue read commands */ 693 if (op != GATTC_OPTYPE_READ && op != GATTC_OPTYPE_WRITE) 694 return; 695 696 if (status != GATT_SUCCESS) 697 { 698 gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL); 699 return; 700 } 701 702 pp = p_data->att_value.value; 703 704 switch (op_type) 705 { 706 case GATT_UUID_GAP_PREF_CONN_PARAM: 707 GAP_TRACE_EVENT0 ("GATT_UUID_GAP_PREF_CONN_PARAM"); 708 /* Extract the peripheral preferred connection parameters and save them */ 709 710 STREAM_TO_UINT16 (min, pp); 711 STREAM_TO_UINT16 (max, pp); 712 STREAM_TO_UINT16 (latency, pp); 713 STREAM_TO_UINT16 (tout, pp); 714 715 BTM_BleSetPrefConnParams (p_clcb->bda, min, max, latency, tout); 716 /* release the connection here */ 717 gap_ble_cl_op_cmpl(p_clcb, TRUE, 0, NULL); 718 break; 719 720 case GATT_UUID_GAP_DEVICE_NAME: 721 GAP_TRACE_EVENT0 ("GATT_UUID_GAP_DEVICE_NAME"); 722 len = (UINT16)strlen((char *)pp); 723 if (len > GAP_CHAR_DEV_NAME_SIZE) 724 len = GAP_CHAR_DEV_NAME_SIZE; 725 gap_ble_cl_op_cmpl(p_clcb, TRUE, len, pp); 726 break; 727 case GATT_UUID_GAP_ICON: 728 break; 729 730 } 731 } 732 733 /******************************************************************************* 734 ** 735 ** Function gap_ble_cl_read_request 736 ** 737 ** Description utility function to start a read request for a GAP charactersitic 738 ** 739 ** Returns TRUE if read started, else FALSE if GAP is busy 740 ** 741 *******************************************************************************/ 742 BOOLEAN gap_ble_cl_read_request(tGAP_CLCB *p_clcb, UINT16 uuid, void * p_cback) 743 { 744 tGATT_READ_PARAM param; 745 746 memset(¶m, 0, sizeof(tGATT_READ_PARAM)); 747 748 param.service.uuid.len = LEN_UUID_16; 749 param.service.uuid.uu.uuid16 = uuid; 750 param.service.s_handle = 1; 751 param.service.e_handle = 0xFFFF; 752 param.service.auth_req = 0; 753 754 if (GATTC_Read(p_clcb->conn_id, GATT_READ_BY_TYPE, ¶m) != GATT_SUCCESS) 755 { 756 GAP_TRACE_ERROR0 ("GAP_BleReadPeerPrefConnParams: GATT_Read Failed"); 757 /* release the link here */ 758 GATT_Disconnect(p_clcb->conn_id); 759 return(FALSE); 760 } 761 else 762 { 763 p_clcb->p_cback = p_cback; 764 p_clcb->cl_op_uuid = uuid; 765 return TRUE; 766 } 767 768 } 769 770 /******************************************************************************* 771 ** 772 ** Function GAP_BleReadPeerPrefConnParams 773 ** 774 ** Description Start a process to read a connected peripheral's preferred 775 ** connection parameters 776 ** 777 ** Returns TRUE if read started, else FALSE if GAP is busy 778 ** 779 *******************************************************************************/ 780 BOOLEAN GAP_BleReadPeerPrefConnParams (BD_ADDR peer_bda) 781 { 782 tGAP_CLCB *p_clcb; 783 784 785 /* This function should only be called if there is a connection to */ 786 /* the peer. Get a client handle for that connection. */ 787 if ((p_clcb = gap_find_clcb_by_bd_addr (peer_bda)) == NULL || 788 !p_clcb->connected) 789 { 790 GAP_TRACE_ERROR0("No connection, can not update reconnect address"); 791 return(FALSE); 792 } 793 794 GAP_TRACE_API3 ("GAP_BleReadPeerPrefConnParams() - BDA: %08x%04x cl_op_uuid: 0x%04x", 795 (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3], 796 (peer_bda[4]<<8)+peer_bda[5], p_clcb->cl_op_uuid); 797 798 /* For now we only handle one at a time */ 799 if (p_clcb->cl_op_uuid != 0) 800 return(FALSE); 801 802 return gap_ble_cl_read_request(p_clcb, GATT_UUID_GAP_PREF_CONN_PARAM, NULL); 803 804 } 805 806 /******************************************************************************* 807 ** 808 ** Function GAP_BleReadPeerDevName 809 ** 810 ** Description Start a process to read a connected peripheral's device name. 811 ** 812 ** Returns TRUE if request accepted 813 ** 814 *******************************************************************************/ 815 BOOLEAN GAP_BleReadPeerDevName (BD_ADDR peer_bda, tGAP_BLE_DEV_NAME_CBACK *p_cback) 816 { 817 tGAP_CLCB *p_clcb = gap_find_clcb_by_bd_addr (peer_bda); 818 819 if (p_cback == NULL) 820 return(FALSE); 821 822 if (p_clcb == NULL) 823 { 824 p_clcb = gap_clcb_alloc(0, peer_bda); 825 p_clcb->connected = FALSE; 826 } 827 828 if (p_clcb == NULL) 829 { 830 GAP_TRACE_ERROR0("GAP_BleReadPeerDevName max connection reached"); 831 } 832 833 834 GAP_TRACE_EVENT3 ("GAP_BleReadPeerDevName() - BDA: %08x%04x cl_op_uuid: 0x%04x", 835 (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3], 836 (peer_bda[4]<<8)+peer_bda[5], p_clcb->cl_op_uuid); 837 838 /* For now we only handle one at a time */ 839 if (p_clcb->cl_op_uuid != 0) 840 return(FALSE); 841 842 /* hold the link here */ 843 GATT_Connect(gap_cb.gatt_if, p_clcb->bda, TRUE); 844 845 if (p_clcb->connected) 846 { 847 return gap_ble_cl_read_request(p_clcb, GATT_UUID_GAP_DEVICE_NAME, (void *)p_cback); 848 } 849 850 p_clcb->p_cback = (void *)p_cback; 851 /* Mark currently active operation */ 852 p_clcb->cl_op_uuid = GATT_UUID_GAP_DEVICE_NAME; 853 854 855 return(TRUE); 856 } 857 858 /******************************************************************************* 859 ** 860 ** Function GAP_BleCancelReadPeerDevName 861 ** 862 ** Description Cancel reading a peripheral's device name. 863 ** 864 ** Returns TRUE if request accepted 865 ** 866 *******************************************************************************/ 867 BOOLEAN GAP_BleCancelReadPeerDevName (BD_ADDR peer_bda) 868 { 869 tGAP_CLCB *p_clcb = gap_find_clcb_by_bd_addr (peer_bda); 870 871 GAP_TRACE_EVENT3 ("GAP_BleCancelReadPeerDevName() - BDA: %08x%04x cl_op_uuid: 0x%04x", 872 (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3], 873 (peer_bda[4]<<8)+peer_bda[5], (p_clcb == NULL)? 0 : p_clcb->cl_op_uuid); 874 875 if (p_clcb == NULL || p_clcb->cl_op_uuid != GATT_UUID_GAP_DEVICE_NAME) 876 { 877 GAP_TRACE_ERROR0 ("Cannot cancel current op is not get dev name"); 878 return FALSE; 879 } 880 881 if (!p_clcb->connected) 882 { 883 if (!GATT_CancelConnect(gap_cb.gatt_if, peer_bda, TRUE)) 884 { 885 GAP_TRACE_ERROR0 ("Cannot cancel where No connection id"); 886 return FALSE; 887 } 888 } 889 890 gap_ble_cl_op_cmpl(p_clcb, FALSE, 0, NULL); 891 892 return(TRUE); 893 } 894 895 /******************************************************************************* 896 ** 897 ** Function GAP_BleUpdateReconnectAddr 898 ** 899 ** Description Start a process to udpate the reconnect address if remote devive 900 ** has privacy enabled. 901 ** 902 ** Returns TRUE if read started, else FALSE if GAP is busy 903 ** 904 *******************************************************************************/ 905 BOOLEAN GAP_BleUpdateReconnectAddr (BD_ADDR peer_bda, BD_ADDR reconn_addr, 906 tGAP_BLE_RECONN_ADDR_CBACK *p_cback) 907 { 908 tGAP_CLCB *p_clcb; 909 tGATT_DISC_PARAM param; 910 911 if (p_cback == NULL) 912 return(FALSE); 913 914 /* This function should only be called if there is a connection to */ 915 /* the peer. Get a client handle for that connection. */ 916 if ((p_clcb = gap_find_clcb_by_bd_addr (peer_bda)) == NULL || 917 !p_clcb->connected) 918 { 919 GAP_TRACE_ERROR0("No connection, can not update reconnect address"); 920 return(FALSE); 921 } 922 923 GAP_TRACE_API3 ("GAP_BleUpdateReconnectAddr() - BDA: %08x%04x cl_op_uuid: 0x%04x", 924 (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3], 925 (peer_bda[4]<<8)+peer_bda[5], p_clcb->cl_op_uuid); 926 927 /* For now we only handle one at a time */ 928 if (p_clcb->cl_op_uuid != 0) 929 { 930 gap_ble_enqueue_op(p_clcb, GATT_UPDATE_RECONN_ADDR, reconn_addr, 0, (void *)p_cback); 931 return(FALSE); 932 } 933 934 /* hold the link here */ 935 GATT_Connect(gap_cb.gatt_if, p_clcb->bda, TRUE); 936 937 memset(¶m, 0, sizeof(tGATT_DISC_PARAM)); 938 939 param.service.len = LEN_UUID_16; 940 param.service.uu.uuid16 = GATT_UUID_GAP_RECONN_ADDR; 941 param.s_handle = 1; 942 param.e_handle = 0xFFFF; 943 944 if (GATTC_Discover(p_clcb->conn_id, GATT_DISC_CHAR, ¶m) != GATT_SUCCESS) 945 { 946 GAP_TRACE_ERROR0 ("GAP_BleReadPeerPrefConnParams: GATT_Read Failed"); 947 /* release the link here */ 948 GATT_Disconnect(p_clcb->conn_id); 949 return(FALSE); 950 } 951 else 952 { 953 p_clcb->p_cback = (void *)p_cback; 954 memcpy(p_clcb->reconn_addr, reconn_addr, BD_ADDR_LEN); 955 p_clcb->cl_op_uuid = GATT_UUID_GAP_RECONN_ADDR; 956 } 957 958 return TRUE; 959 960 } 961 962 #endif /* BLE_INCLUDED */ 963 964 965 966 967 968
