nfc_main.c revision 5c65c3a0f42e174e47fecd4e569606003217ff4e
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); 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_ncif_check_cmd_queue (NULL); 442 break; 443 444 case HAL_NFC_RELEASE_CONTROL_EVT: 445 if (nfc_cb.flags & NFC_FL_CONTROL_GRANTED) 446 { 447 nfc_cb.flags &= ~NFC_FL_CONTROL_GRANTED; 448 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 449 nfc_ncif_check_cmd_queue (NULL); 450 451 if (p_msg->status == HAL_NFC_STATUS_ERR_CMD_TIMEOUT) 452 nfc_ncif_event_status (NFC_NFCC_TIMEOUT_REVT, NFC_STATUS_HW_TIMEOUT); 453 } 454 break; 455 456 case HAL_NFC_ERROR_EVT: 457 switch (p_msg->status) 458 { 459 case HAL_NFC_STATUS_ERR_TRANSPORT: 460 /* Notify app of transport error */ 461 if (nfc_cb.p_resp_cback) 462 { 463 (*nfc_cb.p_resp_cback) (NFC_NFCC_TRANSPORT_ERR_REVT, NULL); 464 465 /* if enabling NFC, notify upper layer of failure after closing HAL */ 466 if (nfc_cb.nfc_state < NFC_STATE_IDLE) 467 { 468 nfc_enabled (NFC_STATUS_FAILED, NULL); 469 } 470 } 471 break; 472 473 case HAL_NFC_STATUS_ERR_CMD_TIMEOUT: 474 nfc_ncif_event_status (NFC_NFCC_TIMEOUT_REVT, NFC_STATUS_HW_TIMEOUT); 475 476 /* if enabling NFC, notify upper layer of failure after closing HAL */ 477 if (nfc_cb.nfc_state < NFC_STATE_IDLE) 478 { 479 nfc_enabled (NFC_STATUS_FAILED, NULL); 480 return; 481 } 482 break; 483 484 default: 485 break; 486 } 487 break; 488 489 default: 490 NFC_TRACE_ERROR1 ("nfc_main_handle_hal_evt (): unhandled event (0x%x).", p_msg->hal_evt); 491 break; 492 } 493} 494 495 496/******************************************************************************* 497** 498** Function nfc_main_flush_cmd_queue 499** 500** Description This function is called when setting power off sleep state. 501** 502** Returns void 503** 504*******************************************************************************/ 505void nfc_main_flush_cmd_queue (void) 506{ 507 BT_HDR *p_msg; 508 509 NFC_TRACE_DEBUG0 ("nfc_main_flush_cmd_queue ()"); 510 511 /* initialize command window */ 512 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 513 514 /* Stop command-pending timer */ 515 nfc_stop_timer(&nfc_cb.nci_wait_rsp_timer); 516 517 /* dequeue and free buffer */ 518 while ((p_msg = (BT_HDR *)GKI_dequeue (&nfc_cb.nci_cmd_xmit_q)) != NULL) 519 { 520 GKI_freebuf (p_msg); 521 } 522} 523 524/******************************************************************************* 525** 526** Function nfc_main_post_hal_evt 527** 528** Description This function posts HAL event to NFC_TASK 529** 530** Returns void 531** 532*******************************************************************************/ 533void nfc_main_post_hal_evt (UINT8 hal_evt, tHAL_NFC_STATUS status) 534{ 535 tNFC_HAL_EVT_MSG *p_msg; 536 537 if ((p_msg = (tNFC_HAL_EVT_MSG *) GKI_getbuf (sizeof(tNFC_HAL_EVT_MSG))) != NULL) 538 { 539 /* Initialize BT_HDR */ 540 p_msg->hdr.len = 0; 541 p_msg->hdr.event = BT_EVT_TO_NFC_MSGS; 542 p_msg->hdr.offset = 0; 543 p_msg->hdr.layer_specific = 0; 544 p_msg->hal_evt = hal_evt; 545 p_msg->status = status; 546 GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg); 547 } 548 else 549 { 550 NFC_TRACE_ERROR0 ("nfc_main_post_hal_evt (): No buffer"); 551 } 552} 553 554 555/******************************************************************************* 556** 557** Function nfc_main_hal_cback 558** 559** Description HAL event handler 560** 561** Returns void 562** 563*******************************************************************************/ 564static void nfc_main_hal_cback(UINT8 event, tHAL_NFC_STATUS status) 565{ 566#if (BT_TRACE_VERBOSE == TRUE) 567 NFC_TRACE_DEBUG3 ("nfc_main_hal_cback event: %s(0x%x), status=%d", 568 nfc_hal_event_name (event), event, status); 569#else 570 NFC_TRACE_DEBUG2 ("nfc_main_hal_cback event: 0x%x, status=%d", event, status); 571#endif 572 573 switch (event) 574 { 575 case HAL_NFC_OPEN_CPLT_EVT: 576 /* 577 ** if NFC_Disable() is called before receiving HAL_NFC_OPEN_CPLT_EVT, 578 ** then wait for HAL_NFC_CLOSE_CPLT_EVT. 579 */ 580 if (nfc_cb.nfc_state == NFC_STATE_W4_HAL_OPEN) 581 { 582 if (status == HAL_NFC_STATUS_OK) 583 { 584 /* Notify NFC_TASK that NCI tranport is initialized */ 585 GKI_send_event (NFC_TASK, NFC_TASK_EVT_TRANSPORT_READY); 586 } 587 else 588 { 589 nfc_main_post_hal_evt (event, status); 590 } 591 } 592 break; 593 594 case HAL_NFC_CLOSE_CPLT_EVT: 595 case HAL_NFC_POST_INIT_CPLT_EVT: 596 case HAL_NFC_PRE_DISCOVER_CPLT_EVT: 597 case HAL_NFC_REQUEST_CONTROL_EVT: 598 case HAL_NFC_RELEASE_CONTROL_EVT: 599 case HAL_NFC_ERROR_EVT: 600 nfc_main_post_hal_evt (event, status); 601 break; 602 603 default: 604 NFC_TRACE_DEBUG1 ("nfc_main_hal_cback unhandled event %x", event); 605 break; 606 } 607} 608 609/******************************************************************************* 610** 611** Function nfc_main_hal_data_cback 612** 613** Description HAL data event handler 614** 615** Returns void 616** 617*******************************************************************************/ 618static void nfc_main_hal_data_cback(UINT16 data_len, UINT8 *p_data) 619{ 620 BT_HDR *p_msg; 621 622 /* ignore all data while shutting down NFCC */ 623 if (nfc_cb.nfc_state == NFC_STATE_W4_HAL_CLOSE) 624 { 625 return; 626 } 627 628 if (p_data) 629 { 630 if ((p_msg = (BT_HDR *) GKI_getpoolbuf (NFC_NCI_POOL_ID)) != NULL) 631 { 632 /* Initialize BT_HDR */ 633 p_msg->len = data_len; 634 p_msg->event = BT_EVT_TO_NFC_NCI; 635 p_msg->offset = NFC_RECEIVE_MSGS_OFFSET; 636 637 /* no need to check length, it always less than pool size */ 638 memcpy ((UINT8 *)(p_msg + 1) + p_msg->offset, p_data, p_msg->len); 639 640 GKI_send_msg (NFC_TASK, NFC_MBOX_ID, p_msg); 641 } 642 else 643 { 644 NFC_TRACE_ERROR0 ("nfc_main_hal_data_cback (): No buffer"); 645 } 646 } 647} 648 649/******************************************************************************* 650** 651** Function NFC_Enable 652** 653** Description This function enables NFC. Prior to calling NFC_Enable: 654** - the NFCC must be powered up, and ready to receive commands. 655** - GKI must be enabled 656** - NFC_TASK must be started 657** - NCIT_TASK must be started (if using dedicated NCI transport) 658** 659** This function opens the NCI transport (if applicable), 660** resets the NFC controller, and initializes the NFC subsystems. 661** 662** When the NFC startup procedure is completed, an 663** NFC_ENABLE_REVT is returned to the application using the 664** tNFC_RESPONSE_CBACK. 665** 666** Returns tNFC_STATUS 667** 668*******************************************************************************/ 669tNFC_STATUS NFC_Enable (tNFC_RESPONSE_CBACK *p_cback) 670{ 671 NFC_TRACE_API0 ("NFC_Enable ()"); 672 673 /* Validate callback */ 674 if (!p_cback) 675 { 676 return (NFC_STATUS_INVALID_PARAM); 677 } 678 nfc_cb.p_resp_cback = p_cback; 679 680 /* Open HAL transport. */ 681 nfc_set_state (NFC_STATE_W4_HAL_OPEN); 682 nfc_cb.p_hal->open (nfc_main_hal_cback, nfc_main_hal_data_cback); 683 684 return (NFC_STATUS_OK); 685} 686 687/******************************************************************************* 688** 689** Function NFC_Disable 690** 691** Description This function performs clean up routines for shutting down 692** NFC and closes the NCI transport (if using dedicated NCI 693** transport). 694** 695** When the NFC shutdown procedure is completed, an 696** NFC_DISABLED_REVT is returned to the application using the 697** tNFC_RESPONSE_CBACK. 698** 699** Returns nothing 700** 701*******************************************************************************/ 702void NFC_Disable (void) 703{ 704 NFC_TRACE_API1 ("NFC_Disable (): nfc_state = %d", nfc_cb.nfc_state); 705 706 if ((nfc_cb.nfc_state == NFC_STATE_NONE) || (nfc_cb.nfc_state == NFC_STATE_NFCC_POWER_OFF_SLEEP)) 707 { 708 nfc_set_state (NFC_STATE_NONE); 709 if (nfc_cb.p_resp_cback) 710 { 711 (*nfc_cb.p_resp_cback) (NFC_DISABLE_REVT, NULL); 712 nfc_cb.p_resp_cback = NULL; 713 } 714 return; 715 } 716 717 /* Close transport and clean up */ 718 nfc_task_shutdown_nfcc (); 719} 720 721/******************************************************************************* 722** 723** Function NFC_Init 724** 725** Description This function initializes control block for NFC 726** 727** Returns nothing 728** 729*******************************************************************************/ 730void NFC_Init (tHAL_NFC_ENTRY *p_hal_entry_tbl) 731{ 732 int xx; 733 734 /* Clear nfc control block */ 735 memset (&nfc_cb, 0, sizeof (tNFC_CB)); 736 737 /* Reset the nfc control block */ 738 for (xx = 0; xx < NCI_MAX_CONN_CBS; xx++) 739 { 740 nfc_cb.conn_cb[xx].conn_id = NFC_ILLEGAL_CONN_ID; 741 } 742 743 /* NCI init */ 744 nfc_cb.p_hal = p_hal_entry_tbl; 745 nfc_cb.nfc_state = NFC_STATE_NONE; 746 nfc_cb.nci_cmd_window = NCI_MAX_CMD_WINDOW; 747 nfc_cb.nci_wait_rsp_tout= NFC_CMD_CMPL_TIMEOUT; 748 nfc_cb.p_disc_maps = nfc_interface_mapping; 749 nfc_cb.num_disc_maps = NFC_NUM_INTERFACE_MAP; 750 nfc_cb.trace_level = NFC_INITIAL_TRACE_LEVEL; 751 nfc_cb.nci_ctrl_size = NCI_CTRL_INIT_SIZE; 752 753 rw_init (); 754 ce_init (); 755 llcp_init (); 756 NFC_SET_MAX_CONN_DEFAULT (); 757} 758 759/******************************************************************************* 760** 761** Function NFC_GetLmrtSize 762** 763** Description Called by application wto query the Listen Mode Routing 764** Table size supported by NFCC 765** 766** Returns Listen Mode Routing Table size 767** 768*******************************************************************************/ 769UINT16 NFC_GetLmrtSize (void) 770{ 771 UINT16 size = 0; 772#if (NFC_RW_ONLY == FALSE) 773 size = nfc_cb.max_ce_table; 774#endif 775 return size; 776} 777 778 779/******************************************************************************* 780** 781** Function NFC_SetConfig 782** 783** Description This function is called to send the configuration parameter 784** TLV to NFCC. The response from NFCC is reported by 785** tNFC_RESPONSE_CBACK as NFC_SET_CONFIG_REVT. 786** 787** Parameters tlv_size - the length of p_param_tlvs. 788** p_param_tlvs - the parameter ID/Len/Value list 789** 790** Returns tNFC_STATUS 791** 792*******************************************************************************/ 793tNFC_STATUS NFC_SetConfig (UINT8 tlv_size, 794 UINT8 *p_param_tlvs) 795{ 796 return nci_snd_core_set_config (p_param_tlvs, tlv_size); 797} 798 799/******************************************************************************* 800** 801** Function NFC_GetConfig 802** 803** Description This function is called to retrieve the parameter TLV from NFCC. 804** The response from NFCC is reported by tNFC_RESPONSE_CBACK 805** as NFC_GET_CONFIG_REVT. 806** 807** Parameters num_ids - the number of parameter IDs 808** p_param_ids - the parameter ID list. 809** 810** Returns tNFC_STATUS 811** 812*******************************************************************************/ 813tNFC_STATUS NFC_GetConfig (UINT8 num_ids, 814 UINT8 *p_param_ids) 815{ 816 return nci_snd_core_get_config (p_param_ids, num_ids); 817} 818 819/******************************************************************************* 820** 821** Function NFC_DiscoveryMap 822** 823** Description This function is called to set the discovery interface mapping. 824** The response from NFCC is reported by tNFC_DISCOVER_CBACK as. 825** NFC_MAP_DEVT. 826** 827** Parameters num - the number of items in p_params. 828** p_maps - the discovery interface mappings 829** p_cback - the discovery callback function 830** 831** Returns tNFC_STATUS 832** 833*******************************************************************************/ 834tNFC_STATUS NFC_DiscoveryMap (UINT8 num, tNFC_DISCOVER_MAPS *p_maps, 835 tNFC_DISCOVER_CBACK *p_cback) 836{ 837 UINT8 num_disc_maps = num; 838 UINT8 xx, yy, num_intf, intf_mask; 839 tNFC_DISCOVER_MAPS max_maps[NFC_NFCC_MAX_NUM_VS_INTERFACE + NCI_INTERFACE_MAX]; 840 BOOLEAN is_supported; 841 842 nfc_cb.p_discv_cback = p_cback; 843 num_intf = 0; 844 NFC_TRACE_DEBUG1 ("nci_interfaces supported by NFCC: 0x%x", nfc_cb.nci_interfaces); 845 for (xx = 0; xx < num_disc_maps; xx++) 846 { 847 is_supported = FALSE; 848 if (p_maps[xx].intf_type > NCI_INTERFACE_MAX) 849 { 850 for (yy = 0; yy < NFC_NFCC_MAX_NUM_VS_INTERFACE; yy++) 851 { 852 if (nfc_cb.vs_interface[yy] == p_maps[xx].intf_type) 853 is_supported = TRUE; 854 } 855 NFC_TRACE_DEBUG3 ("[%d]: vs intf_type:0x%x is_supported:%d", xx, p_maps[xx].intf_type, is_supported); 856 } 857 else 858 { 859 intf_mask = (1 << (p_maps[xx].intf_type)); 860 if (intf_mask & nfc_cb.nci_interfaces) 861 { 862 is_supported = TRUE; 863 } 864 NFC_TRACE_DEBUG4 ("[%d]: intf_type:%d intf_mask: 0x%x is_supported:%d", xx, p_maps[xx].intf_type, intf_mask, is_supported); 865 } 866 if (is_supported) 867 memcpy (&max_maps[num_intf++], &p_maps[xx], sizeof (tNFC_DISCOVER_MAPS)); 868 else 869 { 870 NFC_TRACE_WARNING1 ("NFC_DiscoveryMap interface=0x%x is not supported by NFCC", p_maps[xx].intf_type); 871 } 872 } 873 874 return nci_snd_discover_map_cmd (num_intf, (tNCI_DISCOVER_MAPS *) max_maps); 875} 876 877/******************************************************************************* 878** 879** Function NFC_DiscoveryStart 880** 881** Description This function is called to start Polling and/or Listening. 882** The response from NFCC is reported by tNFC_DISCOVER_CBACK as. 883** NFC_START_DEVT. The notification from NFCC is reported by 884** tNFC_DISCOVER_CBACK as NFC_RESULT_DEVT. 885** 886** Parameters num_params - the number of items in p_params. 887** p_params - the discovery parameters 888** p_cback - the discovery callback function 889** 890** Returns tNFC_STATUS 891** 892*******************************************************************************/ 893tNFC_STATUS NFC_DiscoveryStart (UINT8 num_params, 894 tNFC_DISCOVER_PARAMS *p_params, 895 tNFC_DISCOVER_CBACK *p_cback) 896{ 897 UINT8 *p; 898 int params_size; 899 tNFC_STATUS status = NFC_STATUS_NO_BUFFERS; 900 901 NFC_TRACE_API0 ("NFC_DiscoveryStart"); 902 if (nfc_cb.p_disc_pending) 903 { 904 NFC_TRACE_ERROR0 ("There's pending NFC_DiscoveryStart"); 905 status = NFC_STATUS_BUSY; 906 } 907 else 908 { 909 nfc_cb.p_discv_cback = p_cback; 910 nfc_cb.flags |= NFC_FL_DISCOVER_PENDING; 911 nfc_cb.flags |= NFC_FL_CONTROL_REQUESTED; 912 params_size = sizeof (tNFC_DISCOVER_PARAMS) * num_params; 913 nfc_cb.p_disc_pending = GKI_getbuf ((UINT16)(BT_HDR_SIZE + 1 + params_size)); 914 if (nfc_cb.p_disc_pending) 915 { 916 p = (UINT8 *)nfc_cb.p_disc_pending; 917 *p++ = num_params; 918 memcpy (p, p_params, params_size); 919 status = NFC_STATUS_CMD_STARTED; 920 nfc_ncif_check_cmd_queue (NULL); 921 } 922 } 923 924 NFC_TRACE_API1 ("NFC_DiscoveryStart status: 0x%x", status); 925 return status; 926} 927 928/******************************************************************************* 929** 930** Function NFC_DiscoverySelect 931** 932** Description If tNFC_DISCOVER_CBACK reports status=NFC_MULTIPLE_PROT, 933** the application needs to use this function to select the 934** the logical endpoint to continue. The response from NFCC is 935** reported by tNFC_DISCOVER_CBACK as NFC_SELECT_DEVT. 936** 937** Parameters rf_disc_id - The ID identifies the remote device. 938** protocol - the logical endpoint on the remote devide 939** rf_interface - the RF interface to communicate with NFCC 940** 941** Returns tNFC_STATUS 942** 943*******************************************************************************/ 944tNFC_STATUS NFC_DiscoverySelect (UINT8 rf_disc_id, 945 UINT8 protocol, 946 UINT8 rf_interface) 947{ 948 return nci_snd_discover_select_cmd (rf_disc_id, protocol, rf_interface); 949} 950 951/******************************************************************************* 952** 953** Function NFC_ConnCreate 954** 955** Description This function is called to create a logical connection with 956** NFCC for data exchange. 957** 958** Parameters dest_type - the destination type 959** id - the NFCEE ID or RF Discovery ID . 960** protocol - the protocol. 961** p_cback - the connection callback function 962** 963** Returns tNFC_STATUS 964** 965*******************************************************************************/ 966tNFC_STATUS NFC_ConnCreate (UINT8 dest_type, 967 UINT8 id, 968 UINT8 protocol, 969 tNFC_CONN_CBACK *p_cback) 970{ 971 tNFC_STATUS status = NFC_STATUS_FAILED; 972 tNFC_CONN_CB *p_cb; 973 UINT8 num_tlv=0, tlv_size=0; 974 UINT8 param_tlvs[4], *pp; 975 976 p_cb = nfc_alloc_conn_cb (p_cback); 977 if (p_cb) 978 { 979 p_cb->id = id; 980 pp = param_tlvs; 981 if (dest_type == NCI_DEST_TYPE_NFCEE) 982 { 983 num_tlv = 1; 984 UINT8_TO_STREAM (pp, NCI_CON_CREATE_TAG_NFCEE_VAL); 985 UINT8_TO_STREAM (pp, 2); 986 UINT8_TO_STREAM (pp, id); 987 UINT8_TO_STREAM (pp, protocol); 988 tlv_size = 4; 989 } 990 else if (dest_type == NCI_DEST_TYPE_REMOTE) 991 { 992 num_tlv = 1; 993 UINT8_TO_STREAM (pp, NCI_CON_CREATE_TAG_RF_DISC_ID); 994 UINT8_TO_STREAM (pp, 1); 995 UINT8_TO_STREAM (pp, id); 996 tlv_size = 3; 997 } 998 else if (dest_type == NCI_DEST_TYPE_NFCC) 999 { 1000 p_cb->id = NFC_TEST_ID; 1001 } 1002 /* Add handling of NCI_DEST_TYPE_REMOTE when more RF interface definitions are added */ 1003 p_cb->act_protocol = protocol; 1004 p_cb->p_cback = p_cback; 1005 status = nci_snd_core_conn_create (dest_type, num_tlv, tlv_size, param_tlvs); 1006 if (status == NFC_STATUS_FAILED) 1007 nfc_free_conn_cb (p_cb); 1008 } 1009 return status; 1010} 1011 1012/******************************************************************************* 1013** 1014** Function NFC_ConnClose 1015** 1016** Description This function is called to close a logical connection with 1017** NFCC. 1018** 1019** Parameters conn_id - the connection id. 1020** 1021** Returns tNFC_STATUS 1022** 1023*******************************************************************************/ 1024tNFC_STATUS NFC_ConnClose (UINT8 conn_id) 1025{ 1026 tNFC_CONN_CB *p_cb = nfc_find_conn_cb_by_conn_id (conn_id); 1027 tNFC_STATUS status = NFC_STATUS_FAILED; 1028 1029 if (p_cb) 1030 { 1031 status = nci_snd_core_conn_close (conn_id); 1032 } 1033 return status; 1034} 1035 1036/******************************************************************************* 1037** 1038** Function NFC_SetStaticRfCback 1039** 1040** Description This function is called to update the data callback function 1041** to receive the data for the given connection id. 1042** 1043** Parameters p_cback - the connection callback function 1044** 1045** Returns Nothing 1046** 1047*******************************************************************************/ 1048void NFC_SetStaticRfCback (tNFC_CONN_CBACK *p_cback) 1049{ 1050 tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID]; 1051 1052 p_cb->p_cback = p_cback; 1053 /* just in case DH has received NCI data before the data callback is set 1054 * check if there's any data event to report on this connection id */ 1055 nfc_data_event (p_cb); 1056} 1057 1058/******************************************************************************* 1059** 1060** Function NFC_SendData 1061** 1062** Description This function is called to send the given data packet 1063** to the connection identified by the given connection id. 1064** 1065** Parameters conn_id - the connection id. 1066** p_data - the data packet. 1067** p_data->offset must be >= NCI_MSG_OFFSET_SIZE + NCI_DATA_HDR_SIZE 1068** The data payload starts at ((UINT8 *) (p_data + 1) + p_data->offset) 1069** 1070** Returns tNFC_STATUS 1071** 1072*******************************************************************************/ 1073tNFC_STATUS NFC_SendData (UINT8 conn_id, 1074 BT_HDR *p_data) 1075{ 1076 tNFC_STATUS status = NFC_STATUS_FAILED; 1077 tNFC_CONN_CB *p_cb = nfc_find_conn_cb_by_conn_id (conn_id); 1078 1079 if (p_cb && p_data && p_data->offset >= NCI_MSG_OFFSET_SIZE + NCI_DATA_HDR_SIZE) 1080 { 1081 status = nfc_ncif_send_data (p_cb, p_data); 1082 } 1083 1084 if (status != NFC_STATUS_OK) 1085 GKI_freebuf (p_data); 1086 1087 return status; 1088} 1089 1090/******************************************************************************* 1091** 1092** Function NFC_FlushData 1093** 1094** Description This function is called to discard the tx data queue of 1095** the given connection id. 1096** 1097** Parameters conn_id - the connection id. 1098** 1099** Returns tNFC_STATUS 1100** 1101*******************************************************************************/ 1102tNFC_STATUS NFC_FlushData (UINT8 conn_id) 1103{ 1104 tNFC_STATUS status = NFC_STATUS_FAILED; 1105 tNFC_CONN_CB *p_cb = nfc_find_conn_cb_by_conn_id (conn_id); 1106 void *p_buf; 1107 1108 if (p_cb) 1109 { 1110 status = NFC_STATUS_OK; 1111 while ((p_buf = GKI_dequeue (&p_cb->tx_q)) != NULL) 1112 GKI_freebuf (p_buf); 1113 } 1114 1115 return status; 1116} 1117 1118/******************************************************************************* 1119** 1120** Function NFC_Deactivate 1121** 1122** Description This function is called to stop the discovery process or 1123** put the listen device in sleep mode or terminate the NFC link. 1124** 1125** The response from NFCC is reported by tNFC_DISCOVER_CBACK 1126** as NFC_DEACTIVATE_DEVT. 1127** 1128** Parameters deactivate_type - NFC_DEACTIVATE_TYPE_IDLE, to IDLE mode. 1129** NFC_DEACTIVATE_TYPE_SLEEP to SLEEP mode. 1130** NFC_DEACTIVATE_TYPE_SLEEP_AF to SLEEP_AF mode. 1131** 1132** Returns tNFC_STATUS 1133** 1134*******************************************************************************/ 1135tNFC_STATUS NFC_Deactivate (tNFC_DEACT_TYPE deactivate_type) 1136{ 1137 tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID]; 1138 tNFC_STATUS status = NFC_STATUS_OK; 1139 1140#if (BT_TRACE_VERBOSE == TRUE) 1141 NFC_TRACE_API3 ("NFC_Deactivate %d (%s) deactivate_type:%d", nfc_cb.nfc_state, nfc_state_name (nfc_cb.nfc_state), deactivate_type); 1142#else 1143 NFC_TRACE_API2 ("NFC_Deactivate %d deactivate_type:%d", nfc_cb.nfc_state, deactivate_type); 1144#endif 1145 1146 if (nfc_cb.flags & NFC_FL_DISCOVER_PENDING) 1147 { 1148 /* the HAL pre-discover is still active - clear the pending flag */ 1149 nfc_cb.flags &= ~NFC_FL_DISCOVER_PENDING; 1150 GKI_freebuf (nfc_cb.p_disc_pending); 1151 nfc_cb.p_disc_pending = NULL; 1152 return NFC_STATUS_OK; 1153 } 1154 1155 if (nfc_cb.nfc_state == NFC_STATE_OPEN) 1156 { 1157 nfc_set_state (NFC_STATE_CLOSING); 1158 NFC_TRACE_DEBUG3 ( "act_protocol %d credits:%d/%d", p_cb->act_protocol, p_cb->init_credits, p_cb->num_buff); 1159 if ((p_cb->act_protocol == NCI_PROTOCOL_NFC_DEP) && 1160 (p_cb->init_credits != p_cb->num_buff)) 1161 { 1162 nfc_cb.flags |= NFC_FL_DEACTIVATING; 1163 nfc_cb.deactivate_timer.param = (TIMER_PARAM_TYPE) deactivate_type; 1164 nfc_start_timer (&nfc_cb.deactivate_timer , (UINT16) (NFC_TTYPE_WAIT_2_DEACTIVATE), NFC_DEACTIVATE_TIMEOUT); 1165 return status; 1166 } 1167 } 1168 1169 status = nci_snd_deactivate_cmd (deactivate_type); 1170 return status; 1171} 1172 1173/******************************************************************************* 1174** 1175** Function NFC_UpdateRFCommParams 1176** 1177** Description This function is called to update RF Communication parameters 1178** once the Frame RF Interface has been activated. 1179** 1180** The response from NFCC is reported by tNFC_RESPONSE_CBACK 1181** as NFC_RF_COMM_PARAMS_UPDATE_REVT. 1182** 1183** Returns tNFC_STATUS 1184** 1185*******************************************************************************/ 1186tNFC_STATUS NFC_UpdateRFCommParams (tNFC_RF_COMM_PARAMS *p_params) 1187{ 1188 UINT8 tlvs[12]; 1189 UINT8 *p = tlvs; 1190 UINT8 data_exch_config; 1191 1192 /* RF Technology and Mode */ 1193 if (p_params->include_rf_tech_mode) 1194 { 1195 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_TECH_N_MODE); 1196 UINT8_TO_STREAM (p, 1); 1197 UINT8_TO_STREAM (p, p_params->rf_tech_n_mode); 1198 } 1199 1200 /* Transmit Bit Rate */ 1201 if (p_params->include_tx_bit_rate) 1202 { 1203 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_TX_BIT_RATE); 1204 UINT8_TO_STREAM (p, 1); 1205 UINT8_TO_STREAM (p, p_params->tx_bit_rate); 1206 } 1207 1208 /* Receive Bit Rate */ 1209 if (p_params->include_tx_bit_rate) 1210 { 1211 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_RX_BIT_RATE); 1212 UINT8_TO_STREAM (p, 1); 1213 UINT8_TO_STREAM (p, p_params->rx_bit_rate); 1214 } 1215 1216 /* NFC-B Data Exchange Configuration */ 1217 if (p_params->include_nfc_b_config) 1218 { 1219 UINT8_TO_STREAM (p, NCI_RF_PARAM_ID_B_DATA_EX_PARAM); 1220 UINT8_TO_STREAM (p, 1); 1221 1222 data_exch_config = (p_params->min_tr0 & 0x03) << 6; /* b7b6 : Mininum TR0 */ 1223 data_exch_config |= (p_params->min_tr1 & 0x03) << 4; /* b5b4 : Mininum TR1 */ 1224 data_exch_config |= (p_params->suppression_eos & 0x01) << 3; /* b3 : Suppression of EoS */ 1225 data_exch_config |= (p_params->suppression_sos & 0x01) << 2; /* b2 : Suppression of SoS */ 1226 data_exch_config |= (p_params->min_tr2 & 0x03); /* b1b0 : Mininum TR2 */ 1227 1228 UINT8_TO_STREAM (p, data_exch_config); 1229 } 1230 1231 return nci_snd_parameter_update_cmd (tlvs, (UINT8) (p - tlvs)); 1232} 1233 1234/******************************************************************************* 1235** 1236** Function NFC_SetPowerOffSleep 1237** 1238** Description This function closes/opens transport and turns off/on NFCC. 1239** 1240** Returns tNFC_STATUS 1241** 1242*******************************************************************************/ 1243tNFC_STATUS NFC_SetPowerOffSleep (BOOLEAN enable) 1244{ 1245 NFC_TRACE_API1 ("NFC_SetPowerOffSleep () enable = %d", enable); 1246 1247 if ( (enable == FALSE) 1248 &&(nfc_cb.nfc_state == NFC_STATE_NFCC_POWER_OFF_SLEEP) ) 1249 { 1250 nfc_cb.flags |= NFC_FL_RESTARTING; 1251 1252 /* open transport */ 1253 nfc_set_state (NFC_STATE_W4_HAL_OPEN); 1254 nfc_cb.p_hal->open (nfc_main_hal_cback, nfc_main_hal_data_cback); 1255 1256 return NFC_STATUS_OK; 1257 } 1258 else if ( (enable == TRUE) 1259 &&(nfc_cb.nfc_state == NFC_STATE_IDLE) ) 1260 { 1261 /* close transport to turn off NFCC and clean up */ 1262 nfc_cb.flags |= NFC_FL_POWER_OFF_SLEEP; 1263 nfc_task_shutdown_nfcc (); 1264 1265 return NFC_STATUS_OK; 1266 } 1267 1268 NFC_TRACE_ERROR1 ("NFC_SetPowerOffSleep () invalid state = %d", nfc_cb.nfc_state); 1269 return NFC_STATUS_FAILED; 1270} 1271 1272/******************************************************************************* 1273** 1274** Function NFC_PowerCycleNFCC 1275** 1276** Description This function turns off and then on NFCC. 1277** 1278** Returns tNFC_STATUS 1279** 1280*******************************************************************************/ 1281tNFC_STATUS NFC_PowerCycleNFCC (void) 1282{ 1283 NFC_TRACE_API0 ("NFC_PowerCycleNFCC ()"); 1284 1285 if (nfc_cb.nfc_state == NFC_STATE_IDLE) 1286 { 1287 /* power cycle NFCC */ 1288 nfc_cb.flags |= NFC_FL_POWER_CYCLE_NFCC; 1289 nfc_task_shutdown_nfcc (); 1290 1291 return NFC_STATUS_OK; 1292 } 1293 1294 NFC_TRACE_ERROR1 ("NFC_PowerCycleNFCC () invalid state = %d", nfc_cb.nfc_state); 1295 return NFC_STATUS_FAILED; 1296} 1297 1298 1299/******************************************************************************* 1300** 1301** Function NFC_SetTraceLevel 1302** 1303** Description This function sets the trace level for NFC. If called with 1304** a value of 0xFF, it simply returns the current trace level. 1305** 1306** Returns The new or current trace level 1307** 1308*******************************************************************************/ 1309UINT8 NFC_SetTraceLevel (UINT8 new_level) 1310{ 1311 NFC_TRACE_API1 ("NFC_SetTraceLevel () new_level = %d", new_level); 1312 1313 if (new_level != 0xFF) 1314 nfc_cb.trace_level = new_level; 1315 1316 return (nfc_cb.trace_level); 1317} 1318 1319 1320#endif /* NFC_INCLUDED == TRUE */ 1321