nfc_main.c revision 1ba9dcccf5b342bd74a2f8213b7ed3be78b9db44
1/****************************************************************************** 2 * 3 * Copyright (C) 2010-2013 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 20/****************************************************************************** 21 * 22 * This file contains functions that interface with the NFC NCI transport. 23 * On the receive side, it routes events to the appropriate handler 24 * (callback). On the transmit side, it manages the command transmission. 25 * 26 ******************************************************************************/ 27#include <string.h> 28#include "gki.h" 29#include "nfc_target.h" 30#include "bt_types.h" 31#include "hcidefs.h" 32 33#if (NFC_INCLUDED == TRUE) 34#include "nfc_hal_api.h" 35#include "nfc_api.h" 36#include "nfc_int.h" 37#include "nci_hmsgs.h" 38#include "rw_int.h" 39#include "ce_int.h" 40 41 42#if (NFC_RW_ONLY == FALSE) 43#include "ce_api.h" 44#include "ce_int.h" 45#include "llcp_int.h" 46 47/* NFC mandates support for at least one logical connection; 48 * Update max_conn to the NFCC capability on InitRsp */ 49#define NFC_SET_MAX_CONN_DEFAULT() {nfc_cb.max_conn = 1;} 50 51#else /* NFC_RW_ONLY */ 52#define ce_init() 53#define llcp_init() 54 55#define NFC_SET_MAX_CONN_DEFAULT() 56 57#endif /* NFC_RW_ONLY */ 58/**************************************************************************** 59** Declarations 60****************************************************************************/ 61#if NFC_DYNAMIC_MEMORY == FALSE 62tNFC_CB nfc_cb; 63#endif 64 65#if (NFC_RW_ONLY == FALSE) 66#define NFC_NUM_INTERFACE_MAP 2 67#else 68#define NFC_NUM_INTERFACE_MAP 1 69#endif 70 71static const tNCI_DISCOVER_MAPS nfc_interface_mapping[NFC_NUM_INTERFACE_MAP] = 72{ 73 /* Protocols that use Frame Interface do not need to be included in the interface mapping */ 74 { 75 NCI_PROTOCOL_ISO_DEP, 76 NCI_INTERFACE_MODE_POLL_N_LISTEN, 77 NCI_INTERFACE_ISO_DEP 78 } 79#if (NFC_RW_ONLY == FALSE) 80 , 81 /* this can not be set here due to 2079xB0 NFCC issues */ 82 { 83 NCI_PROTOCOL_NFC_DEP, 84 NCI_INTERFACE_MODE_POLL_N_LISTEN, 85 NCI_INTERFACE_NFC_DEP 86 } 87#endif 88}; 89 90 91#if (BT_TRACE_VERBOSE == TRUE) 92/******************************************************************************* 93** 94** Function nfc_state_name 95** 96** Description This function returns the state name. 97** 98** NOTE conditionally compiled to save memory. 99** 100** Returns pointer to the name 101** 102*******************************************************************************/ 103static char *nfc_state_name (UINT8 state) 104{ 105 switch (state) 106 { 107 case NFC_STATE_NONE: 108 return ("NONE"); 109 case NFC_STATE_W4_HAL_OPEN: 110 return ("W4_HAL_OPEN"); 111 case NFC_STATE_CORE_INIT: 112 return ("CORE_INIT"); 113 case NFC_STATE_W4_POST_INIT_CPLT: 114 return ("W4_POST_INIT_CPLT"); 115 case NFC_STATE_IDLE: 116 return ("IDLE"); 117 case NFC_STATE_OPEN: 118 return ("OPEN"); 119 case NFC_STATE_CLOSING: 120 return ("CLOSING"); 121 case NFC_STATE_W4_HAL_CLOSE: 122 return ("W4_HAL_CLOSE"); 123 case NFC_STATE_NFCC_POWER_OFF_SLEEP: 124 return ("NFCC_POWER_OFF_SLEEP"); 125 default: 126 return ("???? UNKNOWN STATE"); 127 } 128} 129 130/******************************************************************************* 131** 132** Function nfc_hal_event_name 133** 134** Description This function returns the HAL event name. 135** 136** NOTE conditionally compiled to save memory. 137** 138** Returns pointer to the name 139** 140*******************************************************************************/ 141static char *nfc_hal_event_name (UINT8 event) 142{ 143 switch (event) 144 { 145 case HAL_NFC_OPEN_CPLT_EVT: 146 return ("HAL_NFC_OPEN_CPLT_EVT"); 147 148 case HAL_NFC_CLOSE_CPLT_EVT: 149 return ("HAL_NFC_CLOSE_CPLT_EVT"); 150 151 case HAL_NFC_POST_INIT_CPLT_EVT: 152 return ("HAL_NFC_POST_INIT_CPLT_EVT"); 153 154 case HAL_NFC_PRE_DISCOVER_CPLT_EVT: 155 return ("HAL_NFC_PRE_DISCOVER_CPLT_EVT"); 156 157 case HAL_NFC_REQUEST_CONTROL_EVT: 158 return ("HAL_NFC_REQUEST_CONTROL_EVT"); 159 160 case HAL_NFC_RELEASE_CONTROL_EVT: 161 return ("HAL_NFC_RELEASE_CONTROL_EVT"); 162 163 case HAL_NFC_ERROR_EVT: 164 return ("HAL_NFC_ERROR_EVT"); 165 166 default: 167 return ("???? UNKNOWN EVENT"); 168 } 169} 170#endif /* BT_TRACE_VERBOSE == TRUE */ 171 172/******************************************************************************* 173** 174** Function nfc_main_notify_enable_status 175** 176** Description Notify status of Enable/PowerOffSleep/PowerCycle 177** 178*******************************************************************************/ 179static void nfc_main_notify_enable_status (tNFC_STATUS nfc_status) 180{ 181 tNFC_RESPONSE evt_data; 182 183 evt_data.status = nfc_status; 184 185 if (nfc_cb.p_resp_cback) 186 { 187 /* if getting out of PowerOffSleep mode or restarting NFCC */ 188 if (nfc_cb.flags & (NFC_FL_RESTARTING|NFC_FL_POWER_CYCLE_NFCC)) 189 { 190 nfc_cb.flags &= ~(NFC_FL_RESTARTING|NFC_FL_POWER_CYCLE_NFCC); 191 if (nfc_status != NFC_STATUS_OK) 192 { 193 nfc_cb.flags |= NFC_FL_POWER_OFF_SLEEP; 194 } 195 (*nfc_cb.p_resp_cback) (NFC_NFCC_RESTART_REVT, &evt_data); 196 } 197 else 198 { 199 (*nfc_cb.p_resp_cback) (NFC_ENABLE_REVT, &evt_data); 200 } 201 } 202} 203 204 205 206/******************************************************************************* 207** 208** Function nfc_enabled 209** 210** Description NFCC enabled, proceed with stack start up. 211** 212** Returns void 213** 214*******************************************************************************/ 215void nfc_enabled (tNFC_STATUS nfc_status, BT_HDR *p_init_rsp_msg) 216{ 217 tNFC_RESPONSE evt_data; 218 tNFC_CONN_CB *p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID]; 219 UINT8 *p; 220 UINT8 num_interfaces = 0, xx; 221 int yy = 0; 222 223 memset (&evt_data, 0, sizeof (tNFC_RESPONSE)); 224 225 if (nfc_status == NCI_STATUS_OK) 226 { 227 nfc_set_state (NFC_STATE_IDLE); 228 229 p = (UINT8 *) (p_init_rsp_msg + 1) + p_init_rsp_msg->offset + NCI_MSG_HDR_SIZE + 1; 230 /* we currently only support NCI of the same version. 231 * We may need to change this, when we support multiple version of NFCC */ 232 evt_data.enable.nci_version = NCI_VERSION; 233 STREAM_TO_UINT32 (evt_data.enable.nci_features, p); 234 STREAM_TO_UINT8 (num_interfaces, p); 235 236 evt_data.enable.nci_interfaces = 0; 237 for (xx = 0; xx < num_interfaces; xx++) 238 { 239 if ((*p) <= NCI_INTERFACE_MAX) 240 evt_data.enable.nci_interfaces |= (1 << (*p)); 241 else if (((*p) > NCI_INTERFACE_FIRST_VS) && (yy < NFC_NFCC_MAX_NUM_VS_INTERFACE)) 242 { 243 /* save the VS RF interface in control block, if there's still room */ 244 nfc_cb.vs_interface[yy++] = *p; 245 } 246 p++; 247 } 248 nfc_cb.nci_interfaces = evt_data.enable.nci_interfaces; 249 memcpy (evt_data.enable.vs_interface, nfc_cb.vs_interface, NFC_NFCC_MAX_NUM_VS_INTERFACE); 250 evt_data.enable.max_conn = *p++; 251 STREAM_TO_UINT16 (evt_data.enable.max_ce_table, p); 252#if (NFC_RW_ONLY == FALSE) 253 nfc_cb.max_ce_table = evt_data.enable.max_ce_table; 254 nfc_cb.nci_features = evt_data.enable.nci_features; 255 nfc_cb.max_conn = evt_data.enable.max_conn; 256#endif 257 nfc_cb.nci_ctrl_size = *p++; /* Max Control Packet Payload Length */ 258 p_cb->init_credits = p_cb->num_buff = 0; 259 STREAM_TO_UINT16 (evt_data.enable.max_param_size, p); 260 nfc_set_conn_id (p_cb, NFC_RF_CONN_ID); 261 evt_data.enable.manufacture_id = *p++; 262 STREAM_TO_ARRAY (evt_data.enable.nfcc_info, p, NFC_NFCC_INFO_LEN); 263 NFC_DiscoveryMap (nfc_cb.num_disc_maps, (tNCI_DISCOVER_MAPS *) nfc_cb.p_disc_maps, NULL); 264 } 265 /* else not successful. the buffers will be freed in nfc_free_conn_cb () */ 266 else 267 { 268 if (nfc_cb.flags & NFC_FL_RESTARTING) 269 { 270 nfc_set_state (NFC_STATE_NFCC_POWER_OFF_SLEEP); 271 } 272 else 273 { 274 nfc_free_conn_cb (p_cb); 275 276 /* if NFCC didn't respond to CORE_RESET or CORE_INIT */ 277 if (nfc_cb.nfc_state == NFC_STATE_CORE_INIT) 278 { 279 /* report status after closing HAL */ 280 nfc_cb.p_hal->close (); 281 return; 282 } 283 else 284 nfc_set_state (NFC_STATE_NONE); 285 } 286 } 287 288 nfc_main_notify_enable_status (nfc_status); 289} 290 291/******************************************************************************* 292** 293** Function nfc_set_state 294** 295** Description Set the state of NFC stack 296** 297** Returns void 298** 299*******************************************************************************/ 300void nfc_set_state (tNFC_STATE nfc_state) 301{ 302#if (BT_TRACE_VERBOSE == TRUE) 303 NFC_TRACE_DEBUG4 ("nfc_set_state %d (%s)->%d (%s)", nfc_cb.nfc_state, nfc_state_name (nfc_cb.nfc_state), nfc_state, nfc_state_name (nfc_state)); 304#else 305 NFC_TRACE_DEBUG2 ("nfc_set_state %d->%d", nfc_cb.nfc_state, nfc_state); 306#endif 307 nfc_cb.nfc_state = nfc_state; 308} 309 310/******************************************************************************* 311** 312** Function nfc_gen_cleanup 313** 314** Description Clean up for both going into low power mode and disabling NFC 315** 316*******************************************************************************/ 317void nfc_gen_cleanup (void) 318{ 319 nfc_cb.flags &= ~NFC_FL_DEACTIVATING; 320 321 /* the HAL pre-discover is still active - clear the pending flag/free the buffer */ 322 if (nfc_cb.flags & NFC_FL_DISCOVER_PENDING) 323 { 324 nfc_cb.flags &= ~NFC_FL_DISCOVER_PENDING; 325 GKI_freebuf (nfc_cb.p_disc_pending); 326 nfc_cb.p_disc_pending = NULL; 327 } 328 329 nfc_cb.flags &= ~(NFC_FL_CONTROL_REQUESTED | NFC_FL_CONTROL_GRANTED | NFC_FL_HAL_REQUESTED); 330 331 nfc_stop_timer (&nfc_cb.deactivate_timer); 332 333 /* Reset the connection control blocks */ 334 nfc_reset_all_conn_cbs (); 335 336 if (nfc_cb.p_nci_init_rsp) 337 { 338 GKI_freebuf (nfc_cb.p_nci_init_rsp); 339 nfc_cb.p_nci_init_rsp = NULL; 340 } 341 342 /* clear any pending CMD/RSP */ 343 nfc_main_flush_cmd_queue (); 344} 345 346/******************************************************************************* 347** 348** Function nfc_main_handle_hal_evt 349** 350** Description Handle BT_EVT_TO_NFC_MSGS 351** 352*******************************************************************************/ 353void nfc_main_handle_hal_evt (tNFC_HAL_EVT_MSG *p_msg) 354{ 355 UINT8 *ps; 356 357 NFC_TRACE_DEBUG1 ("nfc_main_handle_hal_evt(): HAL event=0x%x", p_msg->hal_evt); 358 359 switch (p_msg->hal_evt) 360 { 361 case HAL_NFC_OPEN_CPLT_EVT: /* only for failure case */ 362 nfc_enabled (NFC_STATUS_FAILED, NULL); 363 break; 364 365 case HAL_NFC_CLOSE_CPLT_EVT: 366 if (nfc_cb.p_resp_cback) 367 { 368 if (nfc_cb.nfc_state == NFC_STATE_W4_HAL_CLOSE) 369 { 370 if (nfc_cb.flags & NFC_FL_POWER_OFF_SLEEP) 371 { 372 nfc_cb.flags &= ~NFC_FL_POWER_OFF_SLEEP; 373 nfc_set_state (NFC_STATE_NFCC_POWER_OFF_SLEEP); 374 (*nfc_cb.p_resp_cback) (NFC_NFCC_POWER_OFF_REVT, NULL); 375 } 376 else 377 { 378 nfc_set_state (NFC_STATE_NONE); 379 (*nfc_cb.p_resp_cback) (NFC_DISABLE_REVT, NULL); 380 nfc_cb.p_resp_cback = NULL; 381 } 382 } 383 else 384 { 385 /* found error during initialization */ 386 nfc_set_state (NFC_STATE_NONE); 387 nfc_main_notify_enable_status (NFC_STATUS_FAILED); 388 } 389 } 390 break; 391 392 case HAL_NFC_POST_INIT_CPLT_EVT: 393 if (nfc_cb.p_nci_init_rsp) 394 { 395 /* 396 ** if NFC_Disable() is called before receiving HAL_NFC_POST_INIT_CPLT_EVT, 397 ** then wait for HAL_NFC_CLOSE_CPLT_EVT. 398 */ 399 if (nfc_cb.nfc_state == NFC_STATE_W4_POST_INIT_CPLT) 400 { 401 if (p_msg->status == HAL_NFC_STATUS_OK) 402 { 403 nfc_enabled (NCI_STATUS_OK, nfc_cb.p_nci_init_rsp); 404 } 405 else /* if post initailization failed */ 406 { 407 nfc_enabled (NCI_STATUS_FAILED, NULL); 408 } 409 } 410 411 GKI_freebuf (nfc_cb.p_nci_init_rsp); 412 nfc_cb.p_nci_init_rsp = NULL; 413 } 414 break; 415 416 case HAL_NFC_PRE_DISCOVER_CPLT_EVT: 417 /* restore the command window, no matter if the discover command is still pending */ 418 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 419 nfc_cb.flags &= ~NFC_FL_CONTROL_GRANTED; 420 if (nfc_cb.flags & NFC_FL_DISCOVER_PENDING) 421 { 422 /* issue the discovery command now, if it is still pending */ 423 nfc_cb.flags &= ~NFC_FL_DISCOVER_PENDING; 424 ps = (UINT8 *)nfc_cb.p_disc_pending; 425 nci_snd_discover_cmd (*ps, (tNFC_DISCOVER_PARAMS *)(ps + 1)); 426 GKI_freebuf (nfc_cb.p_disc_pending); 427 nfc_cb.p_disc_pending = NULL; 428 } 429 else 430 { 431 /* check if there's other pending commands */ 432 nfc_ncif_check_cmd_queue (NULL); 433 } 434 435 if (p_msg->status == HAL_NFC_STATUS_ERR_CMD_TIMEOUT) 436 nfc_ncif_event_status (NFC_NFCC_TIMEOUT_REVT, NFC_STATUS_HW_TIMEOUT); 437 break; 438 439 case HAL_NFC_REQUEST_CONTROL_EVT: 440 nfc_cb.flags |= NFC_FL_CONTROL_REQUESTED; 441 nfc_cb.flags |= NFC_FL_HAL_REQUESTED; 442 nfc_ncif_check_cmd_queue (NULL); 443 break; 444 445 case HAL_NFC_RELEASE_CONTROL_EVT: 446 if (nfc_cb.flags & NFC_FL_CONTROL_GRANTED) 447 { 448 nfc_cb.flags &= ~NFC_FL_CONTROL_GRANTED; 449 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 450 nfc_ncif_check_cmd_queue (NULL); 451 452 if (p_msg->status == HAL_NFC_STATUS_ERR_CMD_TIMEOUT) 453 nfc_ncif_event_status (NFC_NFCC_TIMEOUT_REVT, NFC_STATUS_HW_TIMEOUT); 454 } 455 break; 456 457 case HAL_NFC_ERROR_EVT: 458 switch (p_msg->status) 459 { 460 case HAL_NFC_STATUS_ERR_TRANSPORT: 461 /* Notify app of transport error */ 462 if (nfc_cb.p_resp_cback) 463 { 464 (*nfc_cb.p_resp_cback) (NFC_NFCC_TRANSPORT_ERR_REVT, NULL); 465 466 /* if enabling NFC, notify upper layer of failure after closing HAL */ 467 if (nfc_cb.nfc_state < NFC_STATE_IDLE) 468 { 469 nfc_enabled (NFC_STATUS_FAILED, NULL); 470 } 471 } 472 break; 473 474 case HAL_NFC_STATUS_ERR_CMD_TIMEOUT: 475 nfc_ncif_event_status (NFC_NFCC_TIMEOUT_REVT, NFC_STATUS_HW_TIMEOUT); 476 477 /* if enabling NFC, notify upper layer of failure after closing HAL */ 478 if (nfc_cb.nfc_state < NFC_STATE_IDLE) 479 { 480 nfc_enabled (NFC_STATUS_FAILED, NULL); 481 return; 482 } 483 break; 484 485 default: 486 break; 487 } 488 break; 489 490 default: 491 NFC_TRACE_ERROR1 ("nfc_main_handle_hal_evt (): unhandled event (0x%x).", p_msg->hal_evt); 492 break; 493 } 494} 495 496 497/******************************************************************************* 498** 499** Function nfc_main_flush_cmd_queue 500** 501** Description This function is called when setting power off sleep state. 502** 503** Returns void 504** 505*******************************************************************************/ 506void nfc_main_flush_cmd_queue (void) 507{ 508 BT_HDR *p_msg; 509 510 NFC_TRACE_DEBUG0 ("nfc_main_flush_cmd_queue ()"); 511 512 /* initialize command window */ 513 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 514 515 /* Stop command-pending timer */ 516 nfc_stop_timer(&nfc_cb.nci_wait_rsp_timer); 517 518 /* dequeue and free buffer */ 519 while ((p_msg = (BT_HDR *)GKI_dequeue (&nfc_cb.nci_cmd_xmit_q)) != NULL) 520 { 521 GKI_freebuf (p_msg); 522 } 523} 524 525/******************************************************************************* 526** 527** Function nfc_main_post_hal_evt 528** 529** Description This function posts HAL event to NFC_TASK 530** 531** Returns void 532** 533*******************************************************************************/ 534void nfc_main_post_hal_evt (UINT8 hal_evt, tHAL_NFC_STATUS status) 535{ 536 tNFC_HAL_EVT_MSG *p_msg; 537 538 if ((p_msg = (tNFC_HAL_EVT_MSG *) GKI_getbuf (sizeof(tNFC_HAL_EVT_MSG))) != NULL) 539 { 540 /* Initialize BT_HDR */ 541 p_msg->hdr.len = 0; 542 p_msg->hdr.event = BT_EVT_TO_NFC_MSGS; 543 p_msg->hdr.offset = 0; 544 p_msg->hdr.layer_specific = 0; 545 p_msg->hal_evt = hal_evt; 546 p_msg->status = status; 547 GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg); 548 } 549 else 550 { 551 NFC_TRACE_ERROR0 ("nfc_main_post_hal_evt (): No buffer"); 552 } 553} 554 555 556/******************************************************************************* 557** 558** Function nfc_main_hal_cback 559** 560** Description HAL event handler 561** 562** Returns void 563** 564*******************************************************************************/ 565static void nfc_main_hal_cback(UINT8 event, tHAL_NFC_STATUS status) 566{ 567#if (BT_TRACE_VERBOSE == TRUE) 568 NFC_TRACE_DEBUG3 ("nfc_main_hal_cback event: %s(0x%x), status=%d", 569 nfc_hal_event_name (event), event, status); 570#else 571 NFC_TRACE_DEBUG2 ("nfc_main_hal_cback event: 0x%x, status=%d", event, status); 572#endif 573 574 switch (event) 575 { 576 case HAL_NFC_OPEN_CPLT_EVT: 577 /* 578 ** if NFC_Disable() is called before receiving HAL_NFC_OPEN_CPLT_EVT, 579 ** then wait for HAL_NFC_CLOSE_CPLT_EVT. 580 */ 581 if (nfc_cb.nfc_state == NFC_STATE_W4_HAL_OPEN) 582 { 583 if (status == HAL_NFC_STATUS_OK) 584 { 585 /* Notify NFC_TASK that NCI tranport is initialized */ 586 GKI_send_event (NFC_TASK, NFC_TASK_EVT_TRANSPORT_READY); 587 } 588 else 589 { 590 nfc_main_post_hal_evt (event, status); 591 } 592 } 593 break; 594 595 case HAL_NFC_CLOSE_CPLT_EVT: 596 case HAL_NFC_POST_INIT_CPLT_EVT: 597 case HAL_NFC_PRE_DISCOVER_CPLT_EVT: 598 case HAL_NFC_REQUEST_CONTROL_EVT: 599 case HAL_NFC_RELEASE_CONTROL_EVT: 600 case HAL_NFC_ERROR_EVT: 601 nfc_main_post_hal_evt (event, status); 602 break; 603 604 default: 605 NFC_TRACE_DEBUG1 ("nfc_main_hal_cback unhandled event %x", event); 606 break; 607 } 608} 609 610/******************************************************************************* 611** 612** Function nfc_main_hal_data_cback 613** 614** Description HAL data event handler 615** 616** Returns void 617** 618*******************************************************************************/ 619static void nfc_main_hal_data_cback(UINT16 data_len, UINT8 *p_data) 620{ 621 BT_HDR *p_msg; 622 623 /* ignore all data while shutting down NFCC */ 624 if (nfc_cb.nfc_state == NFC_STATE_W4_HAL_CLOSE) 625 { 626 return; 627 } 628 629 if (p_data) 630 { 631 if ((p_msg = (BT_HDR *) GKI_getpoolbuf (NFC_NCI_POOL_ID)) != NULL) 632 { 633 /* Initialize BT_HDR */ 634 p_msg->len = data_len; 635 p_msg->event = BT_EVT_TO_NFC_NCI; 636 p_msg->offset = NFC_RECEIVE_MSGS_OFFSET; 637 638 /* no need to check length, it always less than pool size */ 639 memcpy ((UINT8 *)(p_msg + 1) + p_msg->offset, p_data, p_msg->len); 640 641 GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg); 642 } 643 else 644 { 645 NFC_TRACE_ERROR0 ("nfc_main_hal_data_cback (): No buffer"); 646 } 647 } 648} 649 650/******************************************************************************* 651** 652** Function NFC_Enable 653** 654** Description This function enables NFC. Prior to calling NFC_Enable: 655** - the NFCC must be powered up, and ready to receive commands. 656** - GKI must be enabled 657** - NFC_TASK must be started 658** - NCIT_TASK must be started (if using dedicated NCI transport) 659** 660** This function opens the NCI transport (if applicable), 661** resets the NFC controller, and initializes the NFC subsystems. 662** 663** When the NFC startup procedure is completed, an 664** NFC_ENABLE_REVT is returned to the application using the 665** tNFC_RESPONSE_CBACK. 666** 667** Returns tNFC_STATUS 668** 669*******************************************************************************/ 670tNFC_STATUS NFC_Enable (tNFC_RESPONSE_CBACK *p_cback) 671{ 672 NFC_TRACE_API0 ("NFC_Enable ()"); 673 674 /* Validate callback */ 675 if (!p_cback) 676 { 677 return (NFC_STATUS_INVALID_PARAM); 678 } 679 nfc_cb.p_resp_cback = p_cback; 680 681 /* Open HAL transport. */ 682 nfc_set_state (NFC_STATE_W4_HAL_OPEN); 683 nfc_cb.p_hal->open (nfc_main_hal_cback, nfc_main_hal_data_cback); 684 685 return (NFC_STATUS_OK); 686} 687 688/******************************************************************************* 689** 690** Function NFC_Disable 691** 692** Description This function performs clean up routines for shutting down 693** NFC and closes the NCI transport (if using dedicated NCI 694** transport). 695** 696** When the NFC shutdown procedure is completed, an 697** NFC_DISABLED_REVT is returned to the application using the 698** tNFC_RESPONSE_CBACK. 699** 700** Returns nothing 701** 702*******************************************************************************/ 703void NFC_Disable (void) 704{ 705 NFC_TRACE_API1 ("NFC_Disable (): nfc_state = %d", nfc_cb.nfc_state); 706 707 if ((nfc_cb.nfc_state == NFC_STATE_NONE) || (nfc_cb.nfc_state == NFC_STATE_NFCC_POWER_OFF_SLEEP)) 708 { 709 nfc_set_state (NFC_STATE_NONE); 710 if (nfc_cb.p_resp_cback) 711 { 712 (*nfc_cb.p_resp_cback) (NFC_DISABLE_REVT, NULL); 713 nfc_cb.p_resp_cback = NULL; 714 } 715 return; 716 } 717 718 /* Close transport and clean up */ 719 nfc_task_shutdown_nfcc (); 720} 721 722/******************************************************************************* 723** 724** Function NFC_Init 725** 726** Description This function initializes control block for NFC 727** 728** Returns nothing 729** 730*******************************************************************************/ 731void NFC_Init (tHAL_NFC_ENTRY *p_hal_entry_tbl) 732{ 733 int xx; 734 735 /* Clear nfc control block */ 736 memset (&nfc_cb, 0, sizeof (tNFC_CB)); 737 738 /* Reset the nfc control block */ 739 for (xx = 0; xx < NCI_MAX_CONN_CBS; xx++) 740 { 741 nfc_cb.conn_cb[xx].conn_id = NFC_ILLEGAL_CONN_ID; 742 } 743 744 /* NCI init */ 745 nfc_cb.p_hal = p_hal_entry_tbl; 746 nfc_cb.nfc_state = NFC_STATE_NONE; 747 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 748 nfc_cb.nci_wait_rsp_tout= NFC_CMD_CMPL_TIMEOUT; 749 nfc_cb.p_disc_maps = nfc_interface_mapping; 750 nfc_cb.num_disc_maps = NFC_NUM_INTERFACE_MAP; 751 nfc_cb.trace_level = NFC_INITIAL_TRACE_LEVEL; 752 nfc_cb.nci_ctrl_size = NCI_CTRL_INIT_SIZE; 753 754 rw_init (); 755 ce_init (); 756 llcp_init (); 757 NFC_SET_MAX_CONN_DEFAULT (); 758} 759 760/******************************************************************************* 761** 762** Function NFC_GetLmrtSize 763** 764** Description Called by application wto query the Listen Mode Routing 765** Table size supported by NFCC 766** 767** Returns Listen Mode Routing Table size 768** 769*******************************************************************************/ 770UINT16 NFC_GetLmrtSize (void) 771{ 772 UINT16 size = 0; 773#if (NFC_RW_ONLY == FALSE) 774 size = nfc_cb.max_ce_table; 775#endif 776 return size; 777} 778 779 780/******************************************************************************* 781** 782** Function NFC_SetConfig 783** 784** Description This function is called to send the configuration parameter 785** TLV to NFCC. The response from NFCC is reported by 786** tNFC_RESPONSE_CBACK as NFC_SET_CONFIG_REVT. 787** 788** Parameters tlv_size - the length of p_param_tlvs. 789** p_param_tlvs - the parameter ID/Len/Value list 790** 791** Returns tNFC_STATUS 792** 793*******************************************************************************/ 794tNFC_STATUS NFC_SetConfig (UINT8 tlv_size, 795 UINT8 *p_param_tlvs) 796{ 797 return nci_snd_core_set_config (p_param_tlvs, tlv_size); 798} 799 800/******************************************************************************* 801** 802** Function NFC_GetConfig 803** 804** Description This function is called to retrieve the parameter TLV from NFCC. 805** The response from NFCC is reported by tNFC_RESPONSE_CBACK 806** as NFC_GET_CONFIG_REVT. 807** 808** Parameters num_ids - the number of parameter IDs 809** p_param_ids - the parameter ID list. 810** 811** Returns tNFC_STATUS 812** 813*******************************************************************************/ 814tNFC_STATUS NFC_GetConfig (UINT8 num_ids, 815 UINT8 *p_param_ids) 816{ 817 return nci_snd_core_get_config (p_param_ids, num_ids); 818} 819 820/******************************************************************************* 821** 822** Function NFC_DiscoveryMap 823** 824** Description This function is called to set the discovery interface mapping. 825** The response from NFCC is reported by tNFC_DISCOVER_CBACK as. 826** NFC_MAP_DEVT. 827** 828** Parameters num - the number of items in p_params. 829** p_maps - the discovery interface mappings 830** p_cback - the discovery callback function 831** 832** Returns tNFC_STATUS 833** 834*******************************************************************************/ 835tNFC_STATUS NFC_DiscoveryMap (UINT8 num, tNFC_DISCOVER_MAPS *p_maps, 836 tNFC_DISCOVER_CBACK *p_cback) 837{ 838 UINT8 num_disc_maps = num; 839 UINT8 xx, yy, num_intf, intf_mask; 840 tNFC_DISCOVER_MAPS max_maps[NFC_NFCC_MAX_NUM_VS_INTERFACE + NCI_INTERFACE_MAX]; 841 BOOLEAN is_supported; 842 843 nfc_cb.p_discv_cback = p_cback; 844 num_intf = 0; 845 NFC_TRACE_DEBUG1 ("nci_interfaces supported by NFCC: 0x%x", nfc_cb.nci_interfaces); 846 for (xx = 0; xx < num_disc_maps; xx++) 847 { 848 is_supported = FALSE; 849 if (p_maps[xx].intf_type > NCI_INTERFACE_MAX) 850 { 851 for (yy = 0; yy < NFC_NFCC_MAX_NUM_VS_INTERFACE; yy++) 852 { 853 if (nfc_cb.vs_interface[yy] == p_maps[xx].intf_type) 854 is_supported = TRUE; 855 } 856 NFC_TRACE_DEBUG3 ("[%d]: vs intf_type:0x%x is_supported:%d", xx, p_maps[xx].intf_type, is_supported); 857 } 858 else 859 { 860 intf_mask = (1 << (p_maps[xx].intf_type)); 861 if (intf_mask & nfc_cb.nci_interfaces) 862 { 863 is_supported = TRUE; 864 } 865 NFC_TRACE_DEBUG4 ("[%d]: intf_type:%d intf_mask: 0x%x is_supported:%d", xx, p_maps[xx].intf_type, intf_mask, is_supported); 866 } 867 if (is_supported) 868 memcpy (&max_maps[num_intf++], &p_maps[xx], sizeof (tNFC_DISCOVER_MAPS)); 869 else 870 { 871 NFC_TRACE_WARNING1 ("NFC_DiscoveryMap interface=0x%x is not supported by NFCC", p_maps[xx].intf_type); 872 } 873 } 874 875 return nci_snd_discover_map_cmd (num_intf, (tNCI_DISCOVER_MAPS *) max_maps); 876} 877 878/******************************************************************************* 879** 880** Function NFC_DiscoveryStart 881** 882** Description This function is called to start Polling and/or Listening. 883** The response from NFCC is reported by tNFC_DISCOVER_CBACK as. 884** NFC_START_DEVT. The notification from NFCC is reported by 885** tNFC_DISCOVER_CBACK as NFC_RESULT_DEVT. 886** 887** Parameters num_params - the number of items in p_params. 888** p_params - the discovery parameters 889** p_cback - the discovery callback function 890** 891** Returns tNFC_STATUS 892** 893*******************************************************************************/ 894tNFC_STATUS NFC_DiscoveryStart (UINT8 num_params, 895 tNFC_DISCOVER_PARAMS *p_params, 896 tNFC_DISCOVER_CBACK *p_cback) 897{ 898 UINT8 *p; 899 int params_size; 900 tNFC_STATUS status = NFC_STATUS_NO_BUFFERS; 901 902 NFC_TRACE_API0 ("NFC_DiscoveryStart"); 903 if (nfc_cb.p_disc_pending) 904 { 905 NFC_TRACE_ERROR0 ("There's pending NFC_DiscoveryStart"); 906 status = NFC_STATUS_BUSY; 907 } 908 else 909 { 910 nfc_cb.p_discv_cback = p_cback; 911 nfc_cb.flags |= NFC_FL_DISCOVER_PENDING; 912 nfc_cb.flags |= NFC_FL_CONTROL_REQUESTED; 913 params_size = sizeof (tNFC_DISCOVER_PARAMS) * num_params; 914 nfc_cb.p_disc_pending = GKI_getbuf ((UINT16)(BT_HDR_SIZE + 1 + params_size)); 915 if (nfc_cb.p_disc_pending) 916 { 917 p = (UINT8 *)nfc_cb.p_disc_pending; 918 *p++ = num_params; 919 memcpy (p, p_params, params_size); 920 status = NFC_STATUS_CMD_STARTED; 921 nfc_ncif_check_cmd_queue (NULL); 922 } 923 } 924 925 NFC_TRACE_API1 ("NFC_DiscoveryStart status: 0x%x", status); 926 return status; 927} 928 929/******************************************************************************* 930** 931** Function NFC_DiscoverySelect 932** 933** Description If tNFC_DISCOVER_CBACK reports status=NFC_MULTIPLE_PROT, 934** the application needs to use this function to select the 935** the logical endpoint to continue. The response from NFCC is 936** reported by tNFC_DISCOVER_CBACK as NFC_SELECT_DEVT. 937** 938** Parameters rf_disc_id - The ID identifies the remote device. 939** protocol - the logical endpoint on the remote devide 940** rf_interface - the RF interface to communicate with NFCC 941** 942** Returns tNFC_STATUS 943** 944*******************************************************************************/ 945tNFC_STATUS NFC_DiscoverySelect (UINT8 rf_disc_id, 946 UINT8 protocol, 947 UINT8 rf_interface) 948{ 949 return nci_snd_discover_select_cmd (rf_disc_id, protocol, rf_interface); 950} 951 952/******************************************************************************* 953** 954** Function NFC_ConnCreate 955** 956** Description This function is called to create a logical connection with 957** NFCC for data exchange. 958** 959** Parameters dest_type - the destination type 960** id - the NFCEE ID or RF Discovery ID . 961** protocol - the protocol. 962** p_cback - the connection callback function 963** 964** Returns tNFC_STATUS 965** 966*******************************************************************************/ 967tNFC_STATUS NFC_ConnCreate (UINT8 dest_type, 968 UINT8 id, 969 UINT8 protocol, 970 tNFC_CONN_CBACK *p_cback) 971{ 972 tNFC_STATUS status = NFC_STATUS_FAILED; 973 tNFC_CONN_CB *p_cb; 974 UINT8 num_tlv=0, tlv_size=0; 975 UINT8 param_tlvs[4], *pp; 976 977 p_cb = nfc_alloc_conn_cb (p_cback); 978 if (p_cb) 979 { 980 p_cb->id = id; 981 pp = param_tlvs; 982 if (dest_type == NCI_DEST_TYPE_NFCEE) 983 { 984 num_tlv = 1; 985 UINT8_TO_STREAM (pp, NCI_CON_CREATE_TAG_NFCEE_VAL); 986 UINT8_TO_STREAM (pp, 2); 987 UINT8_TO_STREAM (pp, id); 988 UINT8_TO_STREAM (pp, protocol); 989 tlv_size = 4; 990 } 991 else if (dest_type == NCI_DEST_TYPE_REMOTE) 992 { 993 num_tlv = 1; 994 UINT8_TO_STREAM (pp, NCI_CON_CREATE_TAG_RF_DISC_ID); 995 UINT8_TO_STREAM (pp, 1); 996 UINT8_TO_STREAM (pp, id); 997 tlv_size = 3; 998 } 999 else if (dest_type == NCI_DEST_TYPE_NFCC) 1000 { 1001 p_cb->id = NFC_TEST_ID; 1002 } 1003 /* Add handling of NCI_DEST_TYPE_REMOTE when more RF interface definitions are added */ 1004 p_cb->act_protocol = protocol; 1005 p_cb->p_cback = p_cback; 1006 status = nci_snd_core_conn_create (dest_type, num_tlv, tlv_size, param_tlvs); 1007 if (status == NFC_STATUS_FAILED) 1008 nfc_free_conn_cb (p_cb); 1009 } 1010 return status; 1011} 1012 1013/******************************************************************************* 1014** 1015** Function NFC_ConnClose 1016** 1017** Description This function is called to close a logical connection with 1018** NFCC. 1019** 1020** Parameters conn_id - the connection id. 1021** 1022** Returns tNFC_STATUS 1023** 1024*******************************************************************************/ 1025tNFC_STATUS NFC_ConnClose (UINT8 conn_id) 1026{ 1027 tNFC_CONN_CB *p_cb = nfc_find_conn_cb_by_conn_id (conn_id); 1028 tNFC_STATUS status = NFC_STATUS_FAILED; 1029 1030 if (p_cb) 1031 { 1032 status = nci_snd_core_conn_close (conn_id); 1033 } 1034 return status; 1035} 1036 1037/******************************************************************************* 1038** 1039** Function NFC_SetStaticRfCback 1040** 1041** Description This function is called to update the data callback function 1042** to receive the data for the given connection id. 1043** 1044** Parameters p_cback - the connection callback function 1045** 1046** Returns Nothing 1047** 1048*******************************************************************************/ 1049void NFC_SetStaticRfCback (tNFC_CONN_CBACK *p_cback) 1050{ 1051 tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID]; 1052 1053 p_cb->p_cback = p_cback; 1054 /* just in case DH has received NCI data before the data callback is set 1055 * check if there's any data event to report on this connection id */ 1056 nfc_data_event (p_cb); 1057} 1058 1059/******************************************************************************* 1060** 1061** Function NFC_SendData 1062** 1063** Description This function is called to send the given data packet 1064** to the connection identified by the given connection id. 1065** 1066** Parameters conn_id - the connection id. 1067** p_data - the data packet. 1068** p_data->offset must be >= NCI_MSG_OFFSET_SIZE + NCI_DATA_HDR_SIZE 1069** The data payload starts at ((UINT8 *) (p_data + 1) + p_data->offset) 1070** 1071** Returns tNFC_STATUS 1072** 1073*******************************************************************************/ 1074tNFC_STATUS NFC_SendData (UINT8 conn_id, 1075 BT_HDR *p_data) 1076{ 1077 tNFC_STATUS status = NFC_STATUS_FAILED; 1078 tNFC_CONN_CB *p_cb = nfc_find_conn_cb_by_conn_id (conn_id); 1079 1080 if (p_cb && p_data && p_data->offset >= NCI_MSG_OFFSET_SIZE + NCI_DATA_HDR_SIZE) 1081 { 1082 status = nfc_ncif_send_data (p_cb, p_data); 1083 } 1084 1085 if (status != NFC_STATUS_OK) 1086 GKI_freebuf (p_data); 1087 1088 return status; 1089} 1090 1091/******************************************************************************* 1092** 1093** Function NFC_FlushData 1094** 1095** Description This function is called to discard the tx data queue of 1096** the given connection id. 1097** 1098** Parameters conn_id - the connection id. 1099** 1100** Returns tNFC_STATUS 1101** 1102*******************************************************************************/ 1103tNFC_STATUS NFC_FlushData (UINT8 conn_id) 1104{ 1105 tNFC_STATUS status = NFC_STATUS_FAILED; 1106 tNFC_CONN_CB *p_cb = nfc_find_conn_cb_by_conn_id (conn_id); 1107 void *p_buf; 1108 1109 if (p_cb) 1110 { 1111 status = NFC_STATUS_OK; 1112 while ((p_buf = GKI_dequeue (&p_cb->tx_q)) != NULL) 1113 GKI_freebuf (p_buf); 1114 } 1115 1116 return status; 1117} 1118 1119/******************************************************************************* 1120** 1121** Function NFC_Deactivate 1122** 1123** Description This function is called to stop the discovery process or 1124** put the listen device in sleep mode or terminate the NFC link. 1125** 1126** The response from NFCC is reported by tNFC_DISCOVER_CBACK 1127** as NFC_DEACTIVATE_DEVT. 1128** 1129** Parameters deactivate_type - NFC_DEACTIVATE_TYPE_IDLE, to IDLE mode. 1130** NFC_DEACTIVATE_TYPE_SLEEP to SLEEP mode. 1131** NFC_DEACTIVATE_TYPE_SLEEP_AF to SLEEP_AF mode. 1132** 1133** Returns tNFC_STATUS 1134** 1135*******************************************************************************/ 1136tNFC_STATUS NFC_Deactivate (tNFC_DEACT_TYPE deactivate_type) 1137{ 1138 tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID]; 1139 tNFC_STATUS status = NFC_STATUS_OK; 1140 1141#if (BT_TRACE_VERBOSE == TRUE) 1142 NFC_TRACE_API3 ("NFC_Deactivate %d (%s) deactivate_type:%d", nfc_cb.nfc_state, nfc_state_name (nfc_cb.nfc_state), deactivate_type); 1143#else 1144 NFC_TRACE_API2 ("NFC_Deactivate %d deactivate_type:%d", nfc_cb.nfc_state, deactivate_type); 1145#endif 1146 1147 if (nfc_cb.flags & NFC_FL_DISCOVER_PENDING) 1148 { 1149 /* the HAL pre-discover is still active - clear the pending flag */ 1150 nfc_cb.flags &= ~NFC_FL_DISCOVER_PENDING; 1151 if (!(nfc_cb.flags & NFC_FL_HAL_REQUESTED)) 1152 { 1153 /* if HAL did not request for control, clear this bit now */ 1154 nfc_cb.flags &= ~NFC_FL_CONTROL_REQUESTED; 1155 } 1156 GKI_freebuf (nfc_cb.p_disc_pending); 1157 nfc_cb.p_disc_pending = NULL; 1158 return NFC_STATUS_OK; 1159 } 1160 1161 if (nfc_cb.nfc_state == NFC_STATE_OPEN) 1162 { 1163 nfc_set_state (NFC_STATE_CLOSING); 1164 NFC_TRACE_DEBUG3 ( "act_protocol %d credits:%d/%d", p_cb->act_protocol, p_cb->init_credits, p_cb->num_buff); 1165 if ((p_cb->act_protocol == NCI_PROTOCOL_NFC_DEP) && 1166 (p_cb->init_credits != p_cb->num_buff)) 1167 { 1168 nfc_cb.flags |= NFC_FL_DEACTIVATING; 1169 nfc_cb.deactivate_timer.param = (TIMER_PARAM_TYPE) deactivate_type; 1170 nfc_start_timer (&nfc_cb.deactivate_timer , (UINT16) (NFC_TTYPE_WAIT_2_DEACTIVATE), NFC_DEACTIVATE_TIMEOUT); 1171 return status; 1172 } 1173 } 1174 1175 status = nci_snd_deactivate_cmd (deactivate_type); 1176 return status; 1177} 1178 1179/******************************************************************************* 1180** 1181** Function NFC_UpdateRFCommParams 1182** 1183** Description This function is called to update RF Communication parameters 1184** once the Frame RF Interface has been activated. 1185** 1186** The response from NFCC is reported by tNFC_RESPONSE_CBACK 1187** as NFC_RF_COMM_PARAMS_UPDATE_REVT. 1188** 1189** Returns tNFC_STATUS 1190** 1191*******************************************************************************/ 1192tNFC_STATUS NFC_UpdateRFCommParams (tNFC_RF_COMM_PARAMS *p_params) 1193{ 1194 UINT8 tlvs[12]; 1195 UINT8 *p = tlvs; 1196 UINT8 data_exch_config; 1197 1198 /* RF Technology and Mode */ 1199 if (p_params->include_rf_tech_mode) 1200 { 1201 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_TECH_N_MODE); 1202 UINT8_TO_STREAM (p, 1); 1203 UINT8_TO_STREAM (p, p_params->rf_tech_n_mode); 1204 } 1205 1206 /* Transmit Bit Rate */ 1207 if (p_params->include_tx_bit_rate) 1208 { 1209 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_TX_BIT_RATE); 1210 UINT8_TO_STREAM (p, 1); 1211 UINT8_TO_STREAM (p, p_params->tx_bit_rate); 1212 } 1213 1214 /* Receive Bit Rate */ 1215 if (p_params->include_tx_bit_rate) 1216 { 1217 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_RX_BIT_RATE); 1218 UINT8_TO_STREAM (p, 1); 1219 UINT8_TO_STREAM (p, p_params->rx_bit_rate); 1220 } 1221 1222 /* NFC-B Data Exchange Configuration */ 1223 if (p_params->include_nfc_b_config) 1224 { 1225 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_B_DATA_EX_PARAM); 1226 UINT8_TO_STREAM (p, 1); 1227 1228 data_exch_config = (p_params->min_tr0 & 0x03) << 6; /* b7b6 : Mininum TR0 */ 1229 data_exch_config |= (p_params->min_tr1 & 0x03) << 4; /* b5b4 : Mininum TR1 */ 1230 data_exch_config |= (p_params->suppression_eos & 0x01) << 3; /* b3 : Suppression of EoS */ 1231 data_exch_config |= (p_params->suppression_sos & 0x01) << 2; /* b2 : Suppression of SoS */ 1232 data_exch_config |= (p_params->min_tr2 & 0x03); /* b1b0 : Mininum TR2 */ 1233 1234 UINT8_TO_STREAM (p, data_exch_config); 1235 } 1236 1237 return nci_snd_parameter_update_cmd (tlvs, (UINT8) (p - tlvs)); 1238} 1239 1240/******************************************************************************* 1241** 1242** Function NFC_SetPowerOffSleep 1243** 1244** Description This function closes/opens transport and turns off/on NFCC. 1245** 1246** Returns tNFC_STATUS 1247** 1248*******************************************************************************/ 1249tNFC_STATUS NFC_SetPowerOffSleep (BOOLEAN enable) 1250{ 1251 NFC_TRACE_API1 ("NFC_SetPowerOffSleep () enable = %d", enable); 1252 1253 if ( (enable == FALSE) 1254 &&(nfc_cb.nfc_state == NFC_STATE_NFCC_POWER_OFF_SLEEP) ) 1255 { 1256 nfc_cb.flags |= NFC_FL_RESTARTING; 1257 1258 /* open transport */ 1259 nfc_set_state (NFC_STATE_W4_HAL_OPEN); 1260 nfc_cb.p_hal->open (nfc_main_hal_cback, nfc_main_hal_data_cback); 1261 1262 return NFC_STATUS_OK; 1263 } 1264 else if ( (enable == TRUE) 1265 &&(nfc_cb.nfc_state == NFC_STATE_IDLE) ) 1266 { 1267 /* close transport to turn off NFCC and clean up */ 1268 nfc_cb.flags |= NFC_FL_POWER_OFF_SLEEP; 1269 nfc_task_shutdown_nfcc (); 1270 1271 return NFC_STATUS_OK; 1272 } 1273 1274 NFC_TRACE_ERROR1 ("NFC_SetPowerOffSleep () invalid state = %d", nfc_cb.nfc_state); 1275 return NFC_STATUS_FAILED; 1276} 1277 1278/******************************************************************************* 1279** 1280** Function NFC_PowerCycleNFCC 1281** 1282** Description This function turns off and then on NFCC. 1283** 1284** Returns tNFC_STATUS 1285** 1286*******************************************************************************/ 1287tNFC_STATUS NFC_PowerCycleNFCC (void) 1288{ 1289 NFC_TRACE_API0 ("NFC_PowerCycleNFCC ()"); 1290 1291 if (nfc_cb.nfc_state == NFC_STATE_IDLE) 1292 { 1293 /* power cycle NFCC */ 1294 nfc_cb.flags |= NFC_FL_POWER_CYCLE_NFCC; 1295 nfc_task_shutdown_nfcc (); 1296 1297 return NFC_STATUS_OK; 1298 } 1299 1300 NFC_TRACE_ERROR1 ("NFC_PowerCycleNFCC () invalid state = %d", nfc_cb.nfc_state); 1301 return NFC_STATUS_FAILED; 1302} 1303 1304 1305/******************************************************************************* 1306** 1307** Function NFC_SetTraceLevel 1308** 1309** Description This function sets the trace level for NFC. If called with 1310** a value of 0xFF, it simply returns the current trace level. 1311** 1312** Returns The new or current trace level 1313** 1314*******************************************************************************/ 1315UINT8 NFC_SetTraceLevel (UINT8 new_level) 1316{ 1317 NFC_TRACE_API1 ("NFC_SetTraceLevel () new_level = %d", new_level); 1318 1319 if (new_level != 0xFF) 1320 nfc_cb.trace_level = new_level; 1321 1322 return (nfc_cb.trace_level); 1323} 1324 1325 1326#endif /* NFC_INCLUDED == TRUE */ 1327