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, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 25 * 26 */ 27 28 #define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__ 29 30 #include <linux/types.h> 31 #include <linux/interrupt.h> 32 #include <linux/bitops.h> 33 #include <linux/skbuff.h> 34 35 #include "../nfc.h" 36 #include <net/nfc/nci.h> 37 #include <net/nfc/nci_core.h> 38 #include <linux/nfc.h> 39 40 /* Handle NCI Notification packets */ 41 42 static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, 43 struct sk_buff *skb) 44 { 45 struct nci_core_conn_credit_ntf *ntf = (void *) skb->data; 46 int i; 47 48 pr_debug("num_entries %d\n", ntf->num_entries); 49 50 if (ntf->num_entries > NCI_MAX_NUM_CONN) 51 ntf->num_entries = NCI_MAX_NUM_CONN; 52 53 /* update the credits */ 54 for (i = 0; i < ntf->num_entries; i++) { 55 ntf->conn_entries[i].conn_id = 56 nci_conn_id(&ntf->conn_entries[i].conn_id); 57 58 pr_debug("entry[%d]: conn_id %d, credits %d\n", 59 i, ntf->conn_entries[i].conn_id, 60 ntf->conn_entries[i].credits); 61 62 if (ntf->conn_entries[i].conn_id == NCI_STATIC_RF_CONN_ID) { 63 /* found static rf connection */ 64 atomic_add(ntf->conn_entries[i].credits, 65 &ndev->credits_cnt); 66 } 67 } 68 69 /* trigger the next tx */ 70 if (!skb_queue_empty(&ndev->tx_q)) 71 queue_work(ndev->tx_wq, &ndev->tx_work); 72 } 73 74 static void nci_core_generic_error_ntf_packet(struct nci_dev *ndev, 75 struct sk_buff *skb) 76 { 77 __u8 status = skb->data[0]; 78 79 pr_debug("status 0x%x\n", status); 80 81 if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) { 82 /* Activation failed, so complete the request 83 (the state remains the same) */ 84 nci_req_complete(ndev, status); 85 } 86 } 87 88 static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, 89 struct sk_buff *skb) 90 { 91 struct nci_core_intf_error_ntf *ntf = (void *) skb->data; 92 93 ntf->conn_id = nci_conn_id(&ntf->conn_id); 94 95 pr_debug("status 0x%x, conn_id %d\n", ntf->status, ntf->conn_id); 96 97 /* complete the data exchange transaction, if exists */ 98 if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) 99 nci_data_exchange_complete(ndev, NULL, -EIO); 100 } 101 102 static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev, 103 struct rf_tech_specific_params_nfca_poll *nfca_poll, 104 __u8 *data) 105 { 106 nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data)); 107 data += 2; 108 109 nfca_poll->nfcid1_len = min_t(__u8, *data++, NFC_NFCID1_MAXSIZE); 110 111 pr_debug("sens_res 0x%x, nfcid1_len %d\n", 112 nfca_poll->sens_res, nfca_poll->nfcid1_len); 113 114 memcpy(nfca_poll->nfcid1, data, nfca_poll->nfcid1_len); 115 data += nfca_poll->nfcid1_len; 116 117 nfca_poll->sel_res_len = *data++; 118 119 if (nfca_poll->sel_res_len != 0) 120 nfca_poll->sel_res = *data++; 121 122 pr_debug("sel_res_len %d, sel_res 0x%x\n", 123 nfca_poll->sel_res_len, 124 nfca_poll->sel_res); 125 126 return data; 127 } 128 129 static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev, 130 struct rf_tech_specific_params_nfcb_poll *nfcb_poll, 131 __u8 *data) 132 { 133 nfcb_poll->sensb_res_len = min_t(__u8, *data++, NFC_SENSB_RES_MAXSIZE); 134 135 pr_debug("sensb_res_len %d\n", nfcb_poll->sensb_res_len); 136 137 memcpy(nfcb_poll->sensb_res, data, nfcb_poll->sensb_res_len); 138 data += nfcb_poll->sensb_res_len; 139 140 return data; 141 } 142 143 static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev, 144 struct rf_tech_specific_params_nfcf_poll *nfcf_poll, 145 __u8 *data) 146 { 147 nfcf_poll->bit_rate = *data++; 148 nfcf_poll->sensf_res_len = min_t(__u8, *data++, NFC_SENSF_RES_MAXSIZE); 149 150 pr_debug("bit_rate %d, sensf_res_len %d\n", 151 nfcf_poll->bit_rate, nfcf_poll->sensf_res_len); 152 153 memcpy(nfcf_poll->sensf_res, data, nfcf_poll->sensf_res_len); 154 data += nfcf_poll->sensf_res_len; 155 156 return data; 157 } 158 159 static int nci_add_new_protocol(struct nci_dev *ndev, 160 struct nfc_target *target, 161 __u8 rf_protocol, 162 __u8 rf_tech_and_mode, 163 void *params) 164 { 165 struct rf_tech_specific_params_nfca_poll *nfca_poll; 166 struct rf_tech_specific_params_nfcb_poll *nfcb_poll; 167 struct rf_tech_specific_params_nfcf_poll *nfcf_poll; 168 __u32 protocol; 169 170 if (rf_protocol == NCI_RF_PROTOCOL_T2T) 171 protocol = NFC_PROTO_MIFARE_MASK; 172 else if (rf_protocol == NCI_RF_PROTOCOL_ISO_DEP) 173 if (rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) 174 protocol = NFC_PROTO_ISO14443_MASK; 175 else 176 protocol = NFC_PROTO_ISO14443_B_MASK; 177 else if (rf_protocol == NCI_RF_PROTOCOL_T3T) 178 protocol = NFC_PROTO_FELICA_MASK; 179 else if (rf_protocol == NCI_RF_PROTOCOL_NFC_DEP) 180 protocol = NFC_PROTO_NFC_DEP_MASK; 181 else 182 protocol = 0; 183 184 if (!(protocol & ndev->poll_prots)) { 185 pr_err("the target found does not have the desired protocol\n"); 186 return -EPROTO; 187 } 188 189 if (rf_tech_and_mode == NCI_NFC_A_PASSIVE_POLL_MODE) { 190 nfca_poll = (struct rf_tech_specific_params_nfca_poll *)params; 191 192 target->sens_res = nfca_poll->sens_res; 193 target->sel_res = nfca_poll->sel_res; 194 target->nfcid1_len = nfca_poll->nfcid1_len; 195 if (target->nfcid1_len > 0) { 196 memcpy(target->nfcid1, nfca_poll->nfcid1, 197 target->nfcid1_len); 198 } 199 } else if (rf_tech_and_mode == NCI_NFC_B_PASSIVE_POLL_MODE) { 200 nfcb_poll = (struct rf_tech_specific_params_nfcb_poll *)params; 201 202 target->sensb_res_len = nfcb_poll->sensb_res_len; 203 if (target->sensb_res_len > 0) { 204 memcpy(target->sensb_res, nfcb_poll->sensb_res, 205 target->sensb_res_len); 206 } 207 } else if (rf_tech_and_mode == NCI_NFC_F_PASSIVE_POLL_MODE) { 208 nfcf_poll = (struct rf_tech_specific_params_nfcf_poll *)params; 209 210 target->sensf_res_len = nfcf_poll->sensf_res_len; 211 if (target->sensf_res_len > 0) { 212 memcpy(target->sensf_res, nfcf_poll->sensf_res, 213 target->sensf_res_len); 214 } 215 } else { 216 pr_err("unsupported rf_tech_and_mode 0x%x\n", rf_tech_and_mode); 217 return -EPROTO; 218 } 219 220 target->supported_protocols |= protocol; 221 222 pr_debug("protocol 0x%x\n", protocol); 223 224 return 0; 225 } 226 227 static void nci_add_new_target(struct nci_dev *ndev, 228 struct nci_rf_discover_ntf *ntf) 229 { 230 struct nfc_target *target; 231 int i, rc; 232 233 for (i = 0; i < ndev->n_targets; i++) { 234 target = &ndev->targets[i]; 235 if (target->logical_idx == ntf->rf_discovery_id) { 236 /* This target already exists, add the new protocol */ 237 nci_add_new_protocol(ndev, target, ntf->rf_protocol, 238 ntf->rf_tech_and_mode, 239 &ntf->rf_tech_specific_params); 240 return; 241 } 242 } 243 244 /* This is a new target, check if we've enough room */ 245 if (ndev->n_targets == NCI_MAX_DISCOVERED_TARGETS) { 246 pr_debug("not enough room, ignoring new target...\n"); 247 return; 248 } 249 250 target = &ndev->targets[ndev->n_targets]; 251 252 rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol, 253 ntf->rf_tech_and_mode, 254 &ntf->rf_tech_specific_params); 255 if (!rc) { 256 target->logical_idx = ntf->rf_discovery_id; 257 ndev->n_targets++; 258 259 pr_debug("logical idx %d, n_targets %d\n", target->logical_idx, 260 ndev->n_targets); 261 } 262 } 263 264 void nci_clear_target_list(struct nci_dev *ndev) 265 { 266 memset(ndev->targets, 0, 267 (sizeof(struct nfc_target)*NCI_MAX_DISCOVERED_TARGETS)); 268 269 ndev->n_targets = 0; 270 } 271 272 static void nci_rf_discover_ntf_packet(struct nci_dev *ndev, 273 struct sk_buff *skb) 274 { 275 struct nci_rf_discover_ntf ntf; 276 __u8 *data = skb->data; 277 bool add_target = true; 278 279 ntf.rf_discovery_id = *data++; 280 ntf.rf_protocol = *data++; 281 ntf.rf_tech_and_mode = *data++; 282 ntf.rf_tech_specific_params_len = *data++; 283 284 pr_debug("rf_discovery_id %d\n", ntf.rf_discovery_id); 285 pr_debug("rf_protocol 0x%x\n", ntf.rf_protocol); 286 pr_debug("rf_tech_and_mode 0x%x\n", ntf.rf_tech_and_mode); 287 pr_debug("rf_tech_specific_params_len %d\n", 288 ntf.rf_tech_specific_params_len); 289 290 if (ntf.rf_tech_specific_params_len > 0) { 291 switch (ntf.rf_tech_and_mode) { 292 case NCI_NFC_A_PASSIVE_POLL_MODE: 293 data = nci_extract_rf_params_nfca_passive_poll(ndev, 294 &(ntf.rf_tech_specific_params.nfca_poll), data); 295 break; 296 297 case NCI_NFC_B_PASSIVE_POLL_MODE: 298 data = nci_extract_rf_params_nfcb_passive_poll(ndev, 299 &(ntf.rf_tech_specific_params.nfcb_poll), data); 300 break; 301 302 case NCI_NFC_F_PASSIVE_POLL_MODE: 303 data = nci_extract_rf_params_nfcf_passive_poll(ndev, 304 &(ntf.rf_tech_specific_params.nfcf_poll), data); 305 break; 306 307 default: 308 pr_err("unsupported rf_tech_and_mode 0x%x\n", 309 ntf.rf_tech_and_mode); 310 data += ntf.rf_tech_specific_params_len; 311 add_target = false; 312 } 313 } 314 315 ntf.ntf_type = *data++; 316 pr_debug("ntf_type %d\n", ntf.ntf_type); 317 318 if (add_target == true) 319 nci_add_new_target(ndev, &ntf); 320 321 if (ntf.ntf_type == NCI_DISCOVER_NTF_TYPE_MORE) { 322 atomic_set(&ndev->state, NCI_W4_ALL_DISCOVERIES); 323 } else { 324 atomic_set(&ndev->state, NCI_W4_HOST_SELECT); 325 nfc_targets_found(ndev->nfc_dev, ndev->targets, 326 ndev->n_targets); 327 } 328 } 329 330 static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev, 331 struct nci_rf_intf_activated_ntf *ntf, __u8 *data) 332 { 333 struct activation_params_nfca_poll_iso_dep *nfca_poll; 334 struct activation_params_nfcb_poll_iso_dep *nfcb_poll; 335 336 switch (ntf->activation_rf_tech_and_mode) { 337 case NCI_NFC_A_PASSIVE_POLL_MODE: 338 nfca_poll = &ntf->activation_params.nfca_poll_iso_dep; 339 nfca_poll->rats_res_len = min_t(__u8, *data++, 20); 340 pr_debug("rats_res_len %d\n", nfca_poll->rats_res_len); 341 if (nfca_poll->rats_res_len > 0) { 342 memcpy(nfca_poll->rats_res, 343 data, nfca_poll->rats_res_len); 344 } 345 break; 346 347 case NCI_NFC_B_PASSIVE_POLL_MODE: 348 nfcb_poll = &ntf->activation_params.nfcb_poll_iso_dep; 349 nfcb_poll->attrib_res_len = min_t(__u8, *data++, 50); 350 pr_debug("attrib_res_len %d\n", nfcb_poll->attrib_res_len); 351 if (nfcb_poll->attrib_res_len > 0) { 352 memcpy(nfcb_poll->attrib_res, 353 data, nfcb_poll->attrib_res_len); 354 } 355 break; 356 357 default: 358 pr_err("unsupported activation_rf_tech_and_mode 0x%x\n", 359 ntf->activation_rf_tech_and_mode); 360 return NCI_STATUS_RF_PROTOCOL_ERROR; 361 } 362 363 return NCI_STATUS_OK; 364 } 365 366 static int nci_extract_activation_params_nfc_dep(struct nci_dev *ndev, 367 struct nci_rf_intf_activated_ntf *ntf, __u8 *data) 368 { 369 struct activation_params_poll_nfc_dep *poll; 370 int i; 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 for (i = 0; i < poll->atr_res_len; i++) 380 poll->atr_res[poll->atr_res_len-1-i] = data[i]; 381 } 382 break; 383 384 default: 385 pr_err("unsupported activation_rf_tech_and_mode 0x%x\n", 386 ntf->activation_rf_tech_and_mode); 387 return NCI_STATUS_RF_PROTOCOL_ERROR; 388 } 389 390 return NCI_STATUS_OK; 391 } 392 393 static void nci_target_auto_activated(struct nci_dev *ndev, 394 struct nci_rf_intf_activated_ntf *ntf) 395 { 396 struct nfc_target *target; 397 int rc; 398 399 target = &ndev->targets[ndev->n_targets]; 400 401 rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol, 402 ntf->activation_rf_tech_and_mode, 403 &ntf->rf_tech_specific_params); 404 if (rc) 405 return; 406 407 target->logical_idx = ntf->rf_discovery_id; 408 ndev->n_targets++; 409 410 pr_debug("logical idx %d, n_targets %d\n", 411 target->logical_idx, ndev->n_targets); 412 413 nfc_targets_found(ndev->nfc_dev, ndev->targets, ndev->n_targets); 414 } 415 416 static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, 417 struct sk_buff *skb) 418 { 419 struct nci_rf_intf_activated_ntf ntf; 420 __u8 *data = skb->data; 421 int err = NCI_STATUS_OK; 422 423 ntf.rf_discovery_id = *data++; 424 ntf.rf_interface = *data++; 425 ntf.rf_protocol = *data++; 426 ntf.activation_rf_tech_and_mode = *data++; 427 ntf.max_data_pkt_payload_size = *data++; 428 ntf.initial_num_credits = *data++; 429 ntf.rf_tech_specific_params_len = *data++; 430 431 pr_debug("rf_discovery_id %d\n", ntf.rf_discovery_id); 432 pr_debug("rf_interface 0x%x\n", ntf.rf_interface); 433 pr_debug("rf_protocol 0x%x\n", ntf.rf_protocol); 434 pr_debug("activation_rf_tech_and_mode 0x%x\n", 435 ntf.activation_rf_tech_and_mode); 436 pr_debug("max_data_pkt_payload_size 0x%x\n", 437 ntf.max_data_pkt_payload_size); 438 pr_debug("initial_num_credits 0x%x\n", 439 ntf.initial_num_credits); 440 pr_debug("rf_tech_specific_params_len %d\n", 441 ntf.rf_tech_specific_params_len); 442 443 if (ntf.rf_tech_specific_params_len > 0) { 444 switch (ntf.activation_rf_tech_and_mode) { 445 case NCI_NFC_A_PASSIVE_POLL_MODE: 446 data = nci_extract_rf_params_nfca_passive_poll(ndev, 447 &(ntf.rf_tech_specific_params.nfca_poll), data); 448 break; 449 450 case NCI_NFC_B_PASSIVE_POLL_MODE: 451 data = nci_extract_rf_params_nfcb_passive_poll(ndev, 452 &(ntf.rf_tech_specific_params.nfcb_poll), data); 453 break; 454 455 case NCI_NFC_F_PASSIVE_POLL_MODE: 456 data = nci_extract_rf_params_nfcf_passive_poll(ndev, 457 &(ntf.rf_tech_specific_params.nfcf_poll), data); 458 break; 459 460 default: 461 pr_err("unsupported activation_rf_tech_and_mode 0x%x\n", 462 ntf.activation_rf_tech_and_mode); 463 err = NCI_STATUS_RF_PROTOCOL_ERROR; 464 goto exit; 465 } 466 } 467 468 ntf.data_exch_rf_tech_and_mode = *data++; 469 ntf.data_exch_tx_bit_rate = *data++; 470 ntf.data_exch_rx_bit_rate = *data++; 471 ntf.activation_params_len = *data++; 472 473 pr_debug("data_exch_rf_tech_and_mode 0x%x\n", 474 ntf.data_exch_rf_tech_and_mode); 475 pr_debug("data_exch_tx_bit_rate 0x%x\n", ntf.data_exch_tx_bit_rate); 476 pr_debug("data_exch_rx_bit_rate 0x%x\n", ntf.data_exch_rx_bit_rate); 477 pr_debug("activation_params_len %d\n", ntf.activation_params_len); 478 479 if (ntf.activation_params_len > 0) { 480 switch (ntf.rf_interface) { 481 case NCI_RF_INTERFACE_ISO_DEP: 482 err = nci_extract_activation_params_iso_dep(ndev, 483 &ntf, data); 484 break; 485 486 case NCI_RF_INTERFACE_NFC_DEP: 487 err = nci_extract_activation_params_nfc_dep(ndev, 488 &ntf, data); 489 break; 490 491 case NCI_RF_INTERFACE_FRAME: 492 /* no activation params */ 493 break; 494 495 default: 496 pr_err("unsupported rf_interface 0x%x\n", 497 ntf.rf_interface); 498 err = NCI_STATUS_RF_PROTOCOL_ERROR; 499 break; 500 } 501 } 502 503 exit: 504 if (err == NCI_STATUS_OK) { 505 ndev->max_data_pkt_payload_size = ntf.max_data_pkt_payload_size; 506 ndev->initial_num_credits = ntf.initial_num_credits; 507 508 /* set the available credits to initial value */ 509 atomic_set(&ndev->credits_cnt, ndev->initial_num_credits); 510 511 /* store general bytes to be reported later in dep_link_up */ 512 if (ntf.rf_interface == NCI_RF_INTERFACE_NFC_DEP) { 513 ndev->remote_gb_len = 0; 514 515 if (ntf.activation_params_len > 0) { 516 /* ATR_RES general bytes at offset 15 */ 517 ndev->remote_gb_len = min_t(__u8, 518 (ntf.activation_params 519 .poll_nfc_dep.atr_res_len 520 - NFC_ATR_RES_GT_OFFSET), 521 NFC_MAX_GT_LEN); 522 memcpy(ndev->remote_gb, 523 (ntf.activation_params.poll_nfc_dep 524 .atr_res + NFC_ATR_RES_GT_OFFSET), 525 ndev->remote_gb_len); 526 } 527 } 528 } 529 530 if (atomic_read(&ndev->state) == NCI_DISCOVERY) { 531 /* A single target was found and activated automatically */ 532 atomic_set(&ndev->state, NCI_POLL_ACTIVE); 533 if (err == NCI_STATUS_OK) 534 nci_target_auto_activated(ndev, &ntf); 535 } else { /* ndev->state == NCI_W4_HOST_SELECT */ 536 /* A selected target was activated, so complete the request */ 537 atomic_set(&ndev->state, NCI_POLL_ACTIVE); 538 nci_req_complete(ndev, err); 539 } 540 } 541 542 static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev, 543 struct sk_buff *skb) 544 { 545 struct nci_rf_deactivate_ntf *ntf = (void *) skb->data; 546 547 pr_debug("entry, type 0x%x, reason 0x%x\n", ntf->type, ntf->reason); 548 549 /* drop tx data queue */ 550 skb_queue_purge(&ndev->tx_q); 551 552 /* drop partial rx data packet */ 553 if (ndev->rx_data_reassembly) { 554 kfree_skb(ndev->rx_data_reassembly); 555 ndev->rx_data_reassembly = NULL; 556 } 557 558 /* complete the data exchange transaction, if exists */ 559 if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) 560 nci_data_exchange_complete(ndev, NULL, -EIO); 561 562 nci_clear_target_list(ndev); 563 atomic_set(&ndev->state, NCI_IDLE); 564 nci_req_complete(ndev, NCI_STATUS_OK); 565 } 566 567 void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb) 568 { 569 __u16 ntf_opcode = nci_opcode(skb->data); 570 571 pr_debug("NCI RX: MT=ntf, PBF=%d, GID=0x%x, OID=0x%x, plen=%d\n", 572 nci_pbf(skb->data), 573 nci_opcode_gid(ntf_opcode), 574 nci_opcode_oid(ntf_opcode), 575 nci_plen(skb->data)); 576 577 /* strip the nci control header */ 578 skb_pull(skb, NCI_CTRL_HDR_SIZE); 579 580 switch (ntf_opcode) { 581 case NCI_OP_CORE_CONN_CREDITS_NTF: 582 nci_core_conn_credits_ntf_packet(ndev, skb); 583 break; 584 585 case NCI_OP_CORE_GENERIC_ERROR_NTF: 586 nci_core_generic_error_ntf_packet(ndev, skb); 587 break; 588 589 case NCI_OP_CORE_INTF_ERROR_NTF: 590 nci_core_conn_intf_error_ntf_packet(ndev, skb); 591 break; 592 593 case NCI_OP_RF_DISCOVER_NTF: 594 nci_rf_discover_ntf_packet(ndev, skb); 595 break; 596 597 case NCI_OP_RF_INTF_ACTIVATED_NTF: 598 nci_rf_intf_activated_ntf_packet(ndev, skb); 599 break; 600 601 case NCI_OP_RF_DEACTIVATE_NTF: 602 nci_rf_deactivate_ntf_packet(ndev, skb); 603 break; 604 605 default: 606 pr_err("unknown ntf opcode 0x%x\n", ntf_opcode); 607 break; 608 } 609 610 kfree_skb(skb); 611 } 612