1 /* 2 * The NFC Controller Interface is the communication protocol between an 3 * NFC Controller (NFCC) and a Device Host (DH). 4 * 5 * Copyright (C) 2011 Texas Instruments, Inc. 6 * 7 * Written by Ilan Elias <ilane@ti.com> 8 * 9 * Acknowledgements: 10 * This file is based on hci_event.c, which was written 11 * by Maxim Krasnyansky. 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License version 2 15 * as published by the Free Software Foundation 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, see <http://www.gnu.org/licenses/>. 24 * 25 */ 26 27 #define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__ 28 29 #include <linux/types.h> 30 #include <linux/interrupt.h> 31 #include <linux/bitops.h> 32 #include <linux/skbuff.h> 33 34 #include "../nfc.h" 35 #include <net/nfc/nci.h> 36 #include <net/nfc/nci_core.h> 37 #include <linux/nfc.h> 38 39 /* Handle NCI Notification packets */ 40 41 static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, 42 struct sk_buff *skb) 43 { 44 struct nci_core_conn_credit_ntf *ntf = (void *) skb->data; 45 int i; 46 47 pr_debug("num_entries %d\n", ntf->num_entries); 48 49 if (ntf->num_entries > NCI_MAX_NUM_CONN) 50 ntf->num_entries = NCI_MAX_NUM_CONN; 51 52 /* update the credits */ 53 for (i = 0; i < ntf->num_entries; i++) { 54 ntf->conn_entries[i].conn_id = 55 nci_conn_id(&ntf->conn_entries[i].conn_id); 56 57 pr_debug("entry[%d]: conn_id %d, credits %d\n", 58 i, ntf->conn_entries[i].conn_id, 59 ntf->conn_entries[i].credits); 60 61 if (ntf->conn_entries[i].conn_id == NCI_STATIC_RF_CONN_ID) { 62 /* found static rf connection */ 63 atomic_add(ntf->conn_entries[i].credits, 64 &ndev->credits_cnt); 65 } 66 } 67 68 /* trigger the next tx */ 69 if (!skb_queue_empty(&ndev->tx_q)) 70 queue_work(ndev->tx_wq, &ndev->tx_work); 71 } 72 73 static void nci_core_generic_error_ntf_packet(struct nci_dev *ndev, 74 struct sk_buff *skb) 75 { 76 __u8 status = skb->data[0]; 77 78 pr_debug("status 0x%x\n", status); 79 80 if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) { 81 /* Activation failed, so complete the request 82 (the state remains the same) */ 83 nci_req_complete(ndev, status); 84 } 85 } 86 87 static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, 88 struct sk_buff *skb) 89 { 90 struct nci_core_intf_error_ntf *ntf = (void *) skb->data; 91 92 ntf->conn_id = nci_conn_id(&ntf->conn_id); 93 94 pr_debug("status 0x%x, conn_id %d\n", ntf->status, ntf->conn_id); 95 96 /* complete the data exchange transaction, if exists */ 97 if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) 98 nci_data_exchange_complete(ndev, NULL, -EIO); 99 } 100 101 static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev, 102 struct rf_tech_specific_params_nfca_poll *nfca_poll, 103 __u8 *data) 104 { 105 nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data)); 106 data += 2; 107 108 nfca_poll->nfcid1_len = min_t(__u8, *data++, NFC_NFCID1_MAXSIZE); 109 110 pr_debug("sens_res 0x%x, nfcid1_len %d\n", 111 nfca_poll->sens_res, nfca_poll->nfcid1_len); 112 113 memcpy(nfca_poll->nfcid1, data, nfca_poll->nfcid1_len); 114 data += nfca_poll->nfcid1_len; 115 116 nfca_poll->sel_res_len = *data++; 117 118 if (nfca_poll->sel_res_len != 0) 119 nfca_poll->sel_res = *data++; 120 121 pr_debug("sel_res_len %d, sel_res 0x%x\n", 122 nfca_poll->sel_res_len, 123 nfca_poll->sel_res); 124 125 return data; 126 } 127 128 static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev, 129 struct rf_tech_specific_params_nfcb_poll *nfcb_poll, 130 __u8 *data) 131 { 132 nfcb_poll->sensb_res_len = min_t(__u8, *data++, NFC_SENSB_RES_MAXSIZE); 133 134 pr_debug("sensb_res_len %d\n", nfcb_poll->sensb_res_len); 135 136 memcpy(nfcb_poll->sensb_res, data, nfcb_poll->sensb_res_len); 137 data += nfcb_poll->sensb_res_len; 138 139 return data; 140 } 141 142 static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev, 143 struct rf_tech_specific_params_nfcf_poll *nfcf_poll, 144 __u8 *data) 145 { 146 nfcf_poll->bit_rate = *data++; 147 nfcf_poll->sensf_res_len = min_t(__u8, *data++, NFC_SENSF_RES_MAXSIZE); 148 149 pr_debug("bit_rate %d, sensf_res_len %d\n", 150 nfcf_poll->bit_rate, nfcf_poll->sensf_res_len); 151 152 memcpy(nfcf_poll->sensf_res, data, nfcf_poll->sensf_res_len); 153 data += nfcf_poll->sensf_res_len; 154 155 return data; 156 } 157 158 static int nci_add_new_protocol(struct nci_dev *ndev, 159 struct nfc_target *target, 160 __u8 rf_protocol, 161 __u8 rf_tech_and_mode, 162 void *params) 163 { 164 struct rf_tech_specific_params_nfca_poll *nfca_poll; 165 struct rf_tech_specific_params_nfcb_poll *nfcb_poll; 166 struct rf_tech_specific_params_nfcf_poll *nfcf_poll; 167 __u32 protocol; 168 169 if (rf_protocol == NCI_RF_PROTOCOL_T1T) 170 protocol = NFC_PROTO_JEWEL_MASK; 171 else if (rf_protocol == NCI_RF_PROTOCOL_T2T) 172 protocol = NFC_PROTO_MIFARE_MASK; 173 else if (rf_protocol == NCI_RF_PROTOCOL_ISO_DEP) 174 if (rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) 175 protocol = NFC_PROTO_ISO14443_MASK; 176 else 177 protocol = NFC_PROTO_ISO14443_B_MASK; 178 else if (rf_protocol == NCI_RF_PROTOCOL_T3T) 179 protocol = NFC_PROTO_FELICA_MASK; 180 else if (rf_protocol == NCI_RF_PROTOCOL_NFC_DEP) 181 protocol = NFC_PROTO_NFC_DEP_MASK; 182 else 183 protocol = 0; 184 185 if (!(protocol & ndev->poll_prots)) { 186 pr_err("the target found does not have the desired protocol\n"); 187 return -EPROTO; 188 } 189 190 if (rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) { 191 nfca_poll = (struct rf_tech_specific_params_nfca_poll *)params; 192 193 target->sens_res = nfca_poll->sens_res; 194 target->sel_res = nfca_poll->sel_res; 195 target->nfcid1_len = nfca_poll->nfcid1_len; 196 if (target->nfcid1_len > 0) { 197 memcpy(target->nfcid1, nfca_poll->nfcid1, 198 target->nfcid1_len); 199 } 200 } else if (rf_tech_and_mode == NCI_NFC_B_PASSIVE_POLL_MODE) { 201 nfcb_poll = (struct rf_tech_specific_params_nfcb_poll *)params; 202 203 target->sensb_res_len = nfcb_poll->sensb_res_len; 204 if (target->sensb_res_len > 0) { 205 memcpy(target->sensb_res, nfcb_poll->sensb_res, 206 target->sensb_res_len); 207 } 208 } else if (rf_tech_and_mode == NCI_NFC_F_PASSIVE_POLL_MODE) { 209 nfcf_poll = (struct rf_tech_specific_params_nfcf_poll *)params; 210 211 target->sensf_res_len = nfcf_poll->sensf_res_len; 212 if (target->sensf_res_len > 0) { 213 memcpy(target->sensf_res, nfcf_poll->sensf_res, 214 target->sensf_res_len); 215 } 216 } else { 217 pr_err("unsupported rf_tech_and_mode 0x%x\n", rf_tech_and_mode); 218 return -EPROTO; 219 } 220 221 target->supported_protocols |= protocol; 222 223 pr_debug("protocol 0x%x\n", protocol); 224 225 return 0; 226 } 227 228 static void nci_add_new_target(struct nci_dev *ndev, 229 struct nci_rf_discover_ntf *ntf) 230 { 231 struct nfc_target *target; 232 int i, rc; 233 234 for (i = 0; i < ndev->n_targets; i++) { 235 target = &ndev->targets[i]; 236 if (target->logical_idx == ntf->rf_discovery_id) { 237 /* This target already exists, add the new protocol */ 238 nci_add_new_protocol(ndev, target, ntf->rf_protocol, 239 ntf->rf_tech_and_mode, 240 &ntf->rf_tech_specific_params); 241 return; 242 } 243 } 244 245 /* This is a new target, check if we've enough room */ 246 if (ndev->n_targets == NCI_MAX_DISCOVERED_TARGETS) { 247 pr_debug("not enough room, ignoring new target...\n"); 248 return; 249 } 250 251 target = &ndev->targets[ndev->n_targets]; 252 253 rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol, 254 ntf->rf_tech_and_mode, 255 &ntf->rf_tech_specific_params); 256 if (!rc) { 257 target->logical_idx = ntf->rf_discovery_id; 258 ndev->n_targets++; 259 260 pr_debug("logical idx %d, n_targets %d\n", target->logical_idx, 261 ndev->n_targets); 262 } 263 } 264 265 void nci_clear_target_list(struct nci_dev *ndev) 266 { 267 memset(ndev->targets, 0, 268 (sizeof(struct nfc_target)*NCI_MAX_DISCOVERED_TARGETS)); 269 270 ndev->n_targets = 0; 271 } 272 273 static void nci_rf_discover_ntf_packet(struct nci_dev *ndev, 274 struct sk_buff *skb) 275 { 276 struct nci_rf_discover_ntf ntf; 277 __u8 *data = skb->data; 278 bool add_target = true; 279 280 ntf.rf_discovery_id = *data++; 281 ntf.rf_protocol = *data++; 282 ntf.rf_tech_and_mode = *data++; 283 ntf.rf_tech_specific_params_len = *data++; 284 285 pr_debug("rf_discovery_id %d\n", ntf.rf_discovery_id); 286 pr_debug("rf_protocol 0x%x\n", ntf.rf_protocol); 287 pr_debug("rf_tech_and_mode 0x%x\n", ntf.rf_tech_and_mode); 288 pr_debug("rf_tech_specific_params_len %d\n", 289 ntf.rf_tech_specific_params_len); 290 291 if (ntf.rf_tech_specific_params_len > 0) { 292 switch (ntf.rf_tech_and_mode) { 293 case NCI_NFC_A_PASSIVE_POLL_MODE: 294 data = nci_extract_rf_params_nfca_passive_poll(ndev, 295 &(ntf.rf_tech_specific_params.nfca_poll), data); 296 break; 297 298 case NCI_NFC_B_PASSIVE_POLL_MODE: 299 data = nci_extract_rf_params_nfcb_passive_poll(ndev, 300 &(ntf.rf_tech_specific_params.nfcb_poll), data); 301 break; 302 303 case NCI_NFC_F_PASSIVE_POLL_MODE: 304 data = nci_extract_rf_params_nfcf_passive_poll(ndev, 305 &(ntf.rf_tech_specific_params.nfcf_poll), data); 306 break; 307 308 default: 309 pr_err("unsupported rf_tech_and_mode 0x%x\n", 310 ntf.rf_tech_and_mode); 311 data += ntf.rf_tech_specific_params_len; 312 add_target = false; 313 } 314 } 315 316 ntf.ntf_type = *data++; 317 pr_debug("ntf_type %d\n", ntf.ntf_type); 318 319 if (add_target == true) 320 nci_add_new_target(ndev, &ntf); 321 322 if (ntf.ntf_type == NCI_DISCOVER_NTF_TYPE_MORE) { 323 atomic_set(&ndev->state, NCI_W4_ALL_DISCOVERIES); 324 } else { 325 atomic_set(&ndev->state, NCI_W4_HOST_SELECT); 326 nfc_targets_found(ndev->nfc_dev, ndev->targets, 327 ndev->n_targets); 328 } 329 } 330 331 static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev, 332 struct nci_rf_intf_activated_ntf *ntf, __u8 *data) 333 { 334 struct activation_params_nfca_poll_iso_dep *nfca_poll; 335 struct activation_params_nfcb_poll_iso_dep *nfcb_poll; 336 337 switch (ntf->activation_rf_tech_and_mode) { 338 case NCI_NFC_A_PASSIVE_POLL_MODE: 339 nfca_poll = &ntf->activation_params.nfca_poll_iso_dep; 340 nfca_poll->rats_res_len = min_t(__u8, *data++, 20); 341 pr_debug("rats_res_len %d\n", nfca_poll->rats_res_len); 342 if (nfca_poll->rats_res_len > 0) { 343 memcpy(nfca_poll->rats_res, 344 data, nfca_poll->rats_res_len); 345 } 346 break; 347 348 case NCI_NFC_B_PASSIVE_POLL_MODE: 349 nfcb_poll = &ntf->activation_params.nfcb_poll_iso_dep; 350 nfcb_poll->attrib_res_len = min_t(__u8, *data++, 50); 351 pr_debug("attrib_res_len %d\n", nfcb_poll->attrib_res_len); 352 if (nfcb_poll->attrib_res_len > 0) { 353 memcpy(nfcb_poll->attrib_res, 354 data, nfcb_poll->attrib_res_len); 355 } 356 break; 357 358 default: 359 pr_err("unsupported activation_rf_tech_and_mode 0x%x\n", 360 ntf->activation_rf_tech_and_mode); 361 return NCI_STATUS_RF_PROTOCOL_ERROR; 362 } 363 364 return NCI_STATUS_OK; 365 } 366 367 static int nci_extract_activation_params_nfc_dep(struct nci_dev *ndev, 368 struct nci_rf_intf_activated_ntf *ntf, __u8 *data) 369 { 370 struct activation_params_poll_nfc_dep *poll; 371 372 switch (ntf->activation_rf_tech_and_mode) { 373 case NCI_NFC_A_PASSIVE_POLL_MODE: 374 case NCI_NFC_F_PASSIVE_POLL_MODE: 375 poll = &ntf->activation_params.poll_nfc_dep; 376 poll->atr_res_len = min_t(__u8, *data++, 63); 377 pr_debug("atr_res_len %d\n", poll->atr_res_len); 378 if (poll->atr_res_len > 0) 379 memcpy(poll->atr_res, data, poll->atr_res_len); 380 break; 381 382 default: 383 pr_err("unsupported activation_rf_tech_and_mode 0x%x\n", 384 ntf->activation_rf_tech_and_mode); 385 return NCI_STATUS_RF_PROTOCOL_ERROR; 386 } 387 388 return NCI_STATUS_OK; 389 } 390 391 static void nci_target_auto_activated(struct nci_dev *ndev, 392 struct nci_rf_intf_activated_ntf *ntf) 393 { 394 struct nfc_target *target; 395 int rc; 396 397 target = &ndev->targets[ndev->n_targets]; 398 399 rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol, 400 ntf->activation_rf_tech_and_mode, 401 &ntf->rf_tech_specific_params); 402 if (rc) 403 return; 404 405 target->logical_idx = ntf->rf_discovery_id; 406 ndev->n_targets++; 407 408 pr_debug("logical idx %d, n_targets %d\n", 409 target->logical_idx, ndev->n_targets); 410 411 nfc_targets_found(ndev->nfc_dev, ndev->targets, ndev->n_targets); 412 } 413 414 static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, 415 struct sk_buff *skb) 416 { 417 struct nci_rf_intf_activated_ntf ntf; 418 __u8 *data = skb->data; 419 int err = NCI_STATUS_OK; 420 421 ntf.rf_discovery_id = *data++; 422 ntf.rf_interface = *data++; 423 ntf.rf_protocol = *data++; 424 ntf.activation_rf_tech_and_mode = *data++; 425 ntf.max_data_pkt_payload_size = *data++; 426 ntf.initial_num_credits = *data++; 427 ntf.rf_tech_specific_params_len = *data++; 428 429 pr_debug("rf_discovery_id %d\n", ntf.rf_discovery_id); 430 pr_debug("rf_interface 0x%x\n", ntf.rf_interface); 431 pr_debug("rf_protocol 0x%x\n", ntf.rf_protocol); 432 pr_debug("activation_rf_tech_and_mode 0x%x\n", 433 ntf.activation_rf_tech_and_mode); 434 pr_debug("max_data_pkt_payload_size 0x%x\n", 435 ntf.max_data_pkt_payload_size); 436 pr_debug("initial_num_credits 0x%x\n", 437 ntf.initial_num_credits); 438 pr_debug("rf_tech_specific_params_len %d\n", 439 ntf.rf_tech_specific_params_len); 440 441 if (ntf.rf_tech_specific_params_len > 0) { 442 switch (ntf.activation_rf_tech_and_mode) { 443 case NCI_NFC_A_PASSIVE_POLL_MODE: 444 data = nci_extract_rf_params_nfca_passive_poll(ndev, 445 &(ntf.rf_tech_specific_params.nfca_poll), data); 446 break; 447 448 case NCI_NFC_B_PASSIVE_POLL_MODE: 449 data = nci_extract_rf_params_nfcb_passive_poll(ndev, 450 &(ntf.rf_tech_specific_params.nfcb_poll), data); 451 break; 452 453 case NCI_NFC_F_PASSIVE_POLL_MODE: 454 data = nci_extract_rf_params_nfcf_passive_poll(ndev, 455 &(ntf.rf_tech_specific_params.nfcf_poll), data); 456 break; 457 458 default: 459 pr_err("unsupported activation_rf_tech_and_mode 0x%x\n", 460 ntf.activation_rf_tech_and_mode); 461 err = NCI_STATUS_RF_PROTOCOL_ERROR; 462 goto exit; 463 } 464 } 465 466 ntf.data_exch_rf_tech_and_mode = *data++; 467 ntf.data_exch_tx_bit_rate = *data++; 468 ntf.data_exch_rx_bit_rate = *data++; 469 ntf.activation_params_len = *data++; 470 471 pr_debug("data_exch_rf_tech_and_mode 0x%x\n", 472 ntf.data_exch_rf_tech_and_mode); 473 pr_debug("data_exch_tx_bit_rate 0x%x\n", ntf.data_exch_tx_bit_rate); 474 pr_debug("data_exch_rx_bit_rate 0x%x\n", ntf.data_exch_rx_bit_rate); 475 pr_debug("activation_params_len %d\n", ntf.activation_params_len); 476 477 if (ntf.activation_params_len > 0) { 478 switch (ntf.rf_interface) { 479 case NCI_RF_INTERFACE_ISO_DEP: 480 err = nci_extract_activation_params_iso_dep(ndev, 481 &ntf, data); 482 break; 483 484 case NCI_RF_INTERFACE_NFC_DEP: 485 err = nci_extract_activation_params_nfc_dep(ndev, 486 &ntf, data); 487 break; 488 489 case NCI_RF_INTERFACE_FRAME: 490 /* no activation params */ 491 break; 492 493 default: 494 pr_err("unsupported rf_interface 0x%x\n", 495 ntf.rf_interface); 496 err = NCI_STATUS_RF_PROTOCOL_ERROR; 497 break; 498 } 499 } 500 501 exit: 502 if (err == NCI_STATUS_OK) { 503 ndev->max_data_pkt_payload_size = ntf.max_data_pkt_payload_size; 504 ndev->initial_num_credits = ntf.initial_num_credits; 505 506 /* set the available credits to initial value */ 507 atomic_set(&ndev->credits_cnt, ndev->initial_num_credits); 508 509 /* store general bytes to be reported later in dep_link_up */ 510 if (ntf.rf_interface == NCI_RF_INTERFACE_NFC_DEP) { 511 ndev->remote_gb_len = 0; 512 513 if (ntf.activation_params_len > 0) { 514 /* ATR_RES general bytes at offset 15 */ 515 ndev->remote_gb_len = min_t(__u8, 516 (ntf.activation_params 517 .poll_nfc_dep.atr_res_len 518 - NFC_ATR_RES_GT_OFFSET), 519 NFC_MAX_GT_LEN); 520 memcpy(ndev->remote_gb, 521 (ntf.activation_params.poll_nfc_dep 522 .atr_res + NFC_ATR_RES_GT_OFFSET), 523 ndev->remote_gb_len); 524 } 525 } 526 } 527 528 if (atomic_read(&ndev->state) == NCI_DISCOVERY) { 529 /* A single target was found and activated automatically */ 530 atomic_set(&ndev->state, NCI_POLL_ACTIVE); 531 if (err == NCI_STATUS_OK) 532 nci_target_auto_activated(ndev, &ntf); 533 } else { /* ndev->state == NCI_W4_HOST_SELECT */ 534 /* A selected target was activated, so complete the request */ 535 atomic_set(&ndev->state, NCI_POLL_ACTIVE); 536 nci_req_complete(ndev, err); 537 } 538 } 539 540 static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev, 541 struct sk_buff *skb) 542 { 543 struct nci_rf_deactivate_ntf *ntf = (void *) skb->data; 544 545 pr_debug("entry, type 0x%x, reason 0x%x\n", ntf->type, ntf->reason); 546 547 /* drop tx data queue */ 548 skb_queue_purge(&ndev->tx_q); 549 550 /* drop partial rx data packet */ 551 if (ndev->rx_data_reassembly) { 552 kfree_skb(ndev->rx_data_reassembly); 553 ndev->rx_data_reassembly = NULL; 554 } 555 556 /* complete the data exchange transaction, if exists */ 557 if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) 558 nci_data_exchange_complete(ndev, NULL, -EIO); 559 560 nci_clear_target_list(ndev); 561 atomic_set(&ndev->state, NCI_IDLE); 562 nci_req_complete(ndev, NCI_STATUS_OK); 563 } 564 565 void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb) 566 { 567 __u16 ntf_opcode = nci_opcode(skb->data); 568 569 pr_debug("NCI RX: MT=ntf, PBF=%d, GID=0x%x, OID=0x%x, plen=%d\n", 570 nci_pbf(skb->data), 571 nci_opcode_gid(ntf_opcode), 572 nci_opcode_oid(ntf_opcode), 573 nci_plen(skb->data)); 574 575 /* strip the nci control header */ 576 skb_pull(skb, NCI_CTRL_HDR_SIZE); 577 578 switch (ntf_opcode) { 579 case NCI_OP_CORE_CONN_CREDITS_NTF: 580 nci_core_conn_credits_ntf_packet(ndev, skb); 581 break; 582 583 case NCI_OP_CORE_GENERIC_ERROR_NTF: 584 nci_core_generic_error_ntf_packet(ndev, skb); 585 break; 586 587 case NCI_OP_CORE_INTF_ERROR_NTF: 588 nci_core_conn_intf_error_ntf_packet(ndev, skb); 589 break; 590 591 case NCI_OP_RF_DISCOVER_NTF: 592 nci_rf_discover_ntf_packet(ndev, skb); 593 break; 594 595 case NCI_OP_RF_INTF_ACTIVATED_NTF: 596 nci_rf_intf_activated_ntf_packet(ndev, skb); 597 break; 598 599 case NCI_OP_RF_DEACTIVATE_NTF: 600 nci_rf_deactivate_ntf_packet(ndev, skb); 601 break; 602 603 default: 604 pr_err("unknown ntf opcode 0x%x\n", ntf_opcode); 605 break; 606 } 607 608 kfree_skb(skb); 609 } 610