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) 2014 Marvell International Ltd. 6 * Copyright (C) 2011 Texas Instruments, Inc. 7 * 8 * Written by Ilan Elias <ilane@ti.com> 9 * 10 * Acknowledgements: 11 * This file is based on hci.h, which was written 12 * by Maxim Krasnyansky. 13 * 14 * This program is free software; you can redistribute it and/or modify 15 * it under the terms of the GNU General Public License version 2 16 * as published by the Free Software Foundation 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, see <http://www.gnu.org/licenses/>. 25 * 26 */ 27 28 #ifndef __NCI_H 29 #define __NCI_H 30 31 #include <net/nfc/nfc.h> 32 33 /* NCI constants */ 34 #define NCI_MAX_NUM_MAPPING_CONFIGS 10 35 #define NCI_MAX_NUM_RF_CONFIGS 10 36 #define NCI_MAX_NUM_CONN 10 37 #define NCI_MAX_PARAM_LEN 251 38 39 /* NCI Status Codes */ 40 #define NCI_STATUS_OK 0x00 41 #define NCI_STATUS_REJECTED 0x01 42 #define NCI_STATUS_RF_FRAME_CORRUPTED 0x02 43 #define NCI_STATUS_FAILED 0x03 44 #define NCI_STATUS_NOT_INITIALIZED 0x04 45 #define NCI_STATUS_SYNTAX_ERROR 0x05 46 #define NCI_STATUS_SEMANTIC_ERROR 0x06 47 #define NCI_STATUS_UNKNOWN_GID 0x07 48 #define NCI_STATUS_UNKNOWN_OID 0x08 49 #define NCI_STATUS_INVALID_PARAM 0x09 50 #define NCI_STATUS_MESSAGE_SIZE_EXCEEDED 0x0a 51 /* Discovery Specific Status Codes */ 52 #define NCI_STATUS_DISCOVERY_ALREADY_STARTED 0xa0 53 #define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED 0xa1 54 #define NCI_STATUS_DISCOVERY_TEAR_DOWN 0xa2 55 /* RF Interface Specific Status Codes */ 56 #define NCI_STATUS_RF_TRANSMISSION_ERROR 0xb0 57 #define NCI_STATUS_RF_PROTOCOL_ERROR 0xb1 58 #define NCI_STATUS_RF_TIMEOUT_ERROR 0xb2 59 /* NFCEE Interface Specific Status Codes */ 60 #define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED 0xc0 61 #define NCI_STATUS_NFCEE_TRANSMISSION_ERROR 0xc1 62 #define NCI_STATUS_NFCEE_PROTOCOL_ERROR 0xc2 63 #define NCI_STATUS_NFCEE_TIMEOUT_ERROR 0xc3 64 65 /* NFCEE Interface/Protocols */ 66 #define NCI_NFCEE_INTERFACE_APDU 0x00 67 #define NCI_NFCEE_INTERFACE_HCI_ACCESS 0x01 68 #define NCI_NFCEE_INTERFACE_TYPE3_CMD_SET 0x02 69 #define NCI_NFCEE_INTERFACE_TRANSPARENT 0x03 70 71 /* Destination type */ 72 #define NCI_DESTINATION_NFCC_LOOPBACK 0x01 73 #define NCI_DESTINATION_REMOTE_NFC_ENDPOINT 0x02 74 #define NCI_DESTINATION_NFCEE 0x03 75 76 /* Destination-specific parameters type */ 77 #define NCI_DESTINATION_SPECIFIC_PARAM_RF_TYPE 0x00 78 #define NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE 0x01 79 80 /* NFCEE Discovery Action */ 81 #define NCI_NFCEE_DISCOVERY_ACTION_DISABLE 0x00 82 #define NCI_NFCEE_DISCOVERY_ACTION_ENABLE 0x01 83 84 /* NCI RF Technology and Mode */ 85 #define NCI_NFC_A_PASSIVE_POLL_MODE 0x00 86 #define NCI_NFC_B_PASSIVE_POLL_MODE 0x01 87 #define NCI_NFC_F_PASSIVE_POLL_MODE 0x02 88 #define NCI_NFC_A_ACTIVE_POLL_MODE 0x03 89 #define NCI_NFC_F_ACTIVE_POLL_MODE 0x05 90 #define NCI_NFC_V_PASSIVE_POLL_MODE 0x06 91 #define NCI_NFC_A_PASSIVE_LISTEN_MODE 0x80 92 #define NCI_NFC_B_PASSIVE_LISTEN_MODE 0x81 93 #define NCI_NFC_F_PASSIVE_LISTEN_MODE 0x82 94 #define NCI_NFC_A_ACTIVE_LISTEN_MODE 0x83 95 #define NCI_NFC_F_ACTIVE_LISTEN_MODE 0x85 96 97 #define NCI_RF_TECH_MODE_LISTEN_MASK 0x80 98 99 /* NCI RF Technologies */ 100 #define NCI_NFC_RF_TECHNOLOGY_A 0x00 101 #define NCI_NFC_RF_TECHNOLOGY_B 0x01 102 #define NCI_NFC_RF_TECHNOLOGY_F 0x02 103 #define NCI_NFC_RF_TECHNOLOGY_V 0x03 104 105 /* NCI Bit Rates */ 106 #define NCI_NFC_BIT_RATE_106 0x00 107 #define NCI_NFC_BIT_RATE_212 0x01 108 #define NCI_NFC_BIT_RATE_424 0x02 109 #define NCI_NFC_BIT_RATE_848 0x03 110 #define NCI_NFC_BIT_RATE_1695 0x04 111 #define NCI_NFC_BIT_RATE_3390 0x05 112 #define NCI_NFC_BIT_RATE_6780 0x06 113 #define NCI_NFC_BIT_RATE_26 0x20 114 115 /* NCI RF Protocols */ 116 #define NCI_RF_PROTOCOL_UNKNOWN 0x00 117 #define NCI_RF_PROTOCOL_T1T 0x01 118 #define NCI_RF_PROTOCOL_T2T 0x02 119 #define NCI_RF_PROTOCOL_T3T 0x03 120 #define NCI_RF_PROTOCOL_ISO_DEP 0x04 121 #define NCI_RF_PROTOCOL_NFC_DEP 0x05 122 #define NCI_RF_PROTOCOL_T5T 0x06 123 124 /* NCI RF Interfaces */ 125 #define NCI_RF_INTERFACE_NFCEE_DIRECT 0x00 126 #define NCI_RF_INTERFACE_FRAME 0x01 127 #define NCI_RF_INTERFACE_ISO_DEP 0x02 128 #define NCI_RF_INTERFACE_NFC_DEP 0x03 129 130 /* NCI Configuration Parameter Tags */ 131 #define NCI_PN_ATR_REQ_GEN_BYTES 0x29 132 #define NCI_LN_ATR_RES_GEN_BYTES 0x61 133 #define NCI_LA_SEL_INFO 0x32 134 #define NCI_LF_PROTOCOL_TYPE 0x50 135 #define NCI_LF_CON_BITR_F 0x54 136 137 /* NCI Configuration Parameters masks */ 138 #define NCI_LA_SEL_INFO_ISO_DEP_MASK 0x20 139 #define NCI_LA_SEL_INFO_NFC_DEP_MASK 0x40 140 #define NCI_LF_PROTOCOL_TYPE_NFC_DEP_MASK 0x02 141 #define NCI_LF_CON_BITR_F_212 0x02 142 #define NCI_LF_CON_BITR_F_424 0x04 143 144 /* NCI Reset types */ 145 #define NCI_RESET_TYPE_KEEP_CONFIG 0x00 146 #define NCI_RESET_TYPE_RESET_CONFIG 0x01 147 148 /* NCI Static RF connection ID */ 149 #define NCI_STATIC_RF_CONN_ID 0x00 150 151 /* NCI Data Flow Control */ 152 #define NCI_DATA_FLOW_CONTROL_NOT_USED 0xff 153 154 /* NCI RF_DISCOVER_MAP_CMD modes */ 155 #define NCI_DISC_MAP_MODE_POLL 0x01 156 #define NCI_DISC_MAP_MODE_LISTEN 0x02 157 158 /* NCI Discover Notification Type */ 159 #define NCI_DISCOVER_NTF_TYPE_LAST 0x00 160 #define NCI_DISCOVER_NTF_TYPE_LAST_NFCC 0x01 161 #define NCI_DISCOVER_NTF_TYPE_MORE 0x02 162 163 /* NCI Deactivation Type */ 164 #define NCI_DEACTIVATE_TYPE_IDLE_MODE 0x00 165 #define NCI_DEACTIVATE_TYPE_SLEEP_MODE 0x01 166 #define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE 0x02 167 #define NCI_DEACTIVATE_TYPE_DISCOVERY 0x03 168 169 /* Message Type (MT) */ 170 #define NCI_MT_DATA_PKT 0x00 171 #define NCI_MT_CMD_PKT 0x01 172 #define NCI_MT_RSP_PKT 0x02 173 #define NCI_MT_NTF_PKT 0x03 174 175 #define nci_mt(hdr) (((hdr)[0]>>5)&0x07) 176 #define nci_mt_set(hdr, mt) ((hdr)[0] |= (__u8)(((mt)&0x07)<<5)) 177 178 /* Packet Boundary Flag (PBF) */ 179 #define NCI_PBF_LAST 0x00 180 #define NCI_PBF_CONT 0x01 181 182 #define nci_pbf(hdr) (__u8)(((hdr)[0]>>4)&0x01) 183 #define nci_pbf_set(hdr, pbf) ((hdr)[0] |= (__u8)(((pbf)&0x01)<<4)) 184 185 /* Control Opcode manipulation */ 186 #define nci_opcode_pack(gid, oid) (__u16)((((__u16)((gid)&0x0f))<<8)|\ 187 ((__u16)((oid)&0x3f))) 188 #define nci_opcode(hdr) nci_opcode_pack(hdr[0], hdr[1]) 189 #define nci_opcode_gid(op) (__u8)(((op)&0x0f00)>>8) 190 #define nci_opcode_oid(op) (__u8)((op)&0x003f) 191 192 /* Payload Length */ 193 #define nci_plen(hdr) (__u8)((hdr)[2]) 194 195 /* Connection ID */ 196 #define nci_conn_id(hdr) (__u8)(((hdr)[0])&0x0f) 197 198 /* GID values */ 199 #define NCI_GID_CORE 0x0 200 #define NCI_GID_RF_MGMT 0x1 201 #define NCI_GID_NFCEE_MGMT 0x2 202 #define NCI_GID_PROPRIETARY 0xf 203 204 /* ----- NCI over SPI head/crc(tail) room needed for outgoing frames ----- */ 205 #define NCI_SPI_HDR_LEN 4 206 #define NCI_SPI_CRC_LEN 2 207 208 /* ---- NCI Packet structures ---- */ 209 #define NCI_CTRL_HDR_SIZE 3 210 #define NCI_DATA_HDR_SIZE 3 211 212 struct nci_ctrl_hdr { 213 __u8 gid; /* MT & PBF & GID */ 214 __u8 oid; 215 __u8 plen; 216 } __packed; 217 218 struct nci_data_hdr { 219 __u8 conn_id; /* MT & PBF & ConnID */ 220 __u8 rfu; 221 __u8 plen; 222 } __packed; 223 224 /* ------------------------ */ 225 /* ----- NCI Commands ---- */ 226 /* ------------------------ */ 227 #define NCI_OP_CORE_RESET_CMD nci_opcode_pack(NCI_GID_CORE, 0x00) 228 struct nci_core_reset_cmd { 229 __u8 reset_type; 230 } __packed; 231 232 #define NCI_OP_CORE_INIT_CMD nci_opcode_pack(NCI_GID_CORE, 0x01) 233 234 #define NCI_OP_CORE_SET_CONFIG_CMD nci_opcode_pack(NCI_GID_CORE, 0x02) 235 struct set_config_param { 236 __u8 id; 237 __u8 len; 238 __u8 val[NCI_MAX_PARAM_LEN]; 239 } __packed; 240 241 struct nci_core_set_config_cmd { 242 __u8 num_params; 243 struct set_config_param param; /* support 1 param per cmd is enough */ 244 } __packed; 245 246 #define NCI_OP_CORE_CONN_CREATE_CMD nci_opcode_pack(NCI_GID_CORE, 0x04) 247 #define DEST_SPEC_PARAMS_ID_INDEX 0 248 #define DEST_SPEC_PARAMS_PROTOCOL_INDEX 1 249 struct dest_spec_params { 250 __u8 id; 251 __u8 protocol; 252 } __packed; 253 254 struct core_conn_create_dest_spec_params { 255 __u8 type; 256 __u8 length; 257 __u8 value[0]; 258 } __packed; 259 260 struct nci_core_conn_create_cmd { 261 __u8 destination_type; 262 __u8 number_destination_params; 263 struct core_conn_create_dest_spec_params params[0]; 264 } __packed; 265 266 #define NCI_OP_CORE_CONN_CLOSE_CMD nci_opcode_pack(NCI_GID_CORE, 0x05) 267 268 #define NCI_OP_RF_DISCOVER_MAP_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x00) 269 struct disc_map_config { 270 __u8 rf_protocol; 271 __u8 mode; 272 __u8 rf_interface; 273 } __packed; 274 275 struct nci_rf_disc_map_cmd { 276 __u8 num_mapping_configs; 277 struct disc_map_config mapping_configs 278 [NCI_MAX_NUM_MAPPING_CONFIGS]; 279 } __packed; 280 281 #define NCI_OP_RF_DISCOVER_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x03) 282 struct disc_config { 283 __u8 rf_tech_and_mode; 284 __u8 frequency; 285 } __packed; 286 287 struct nci_rf_disc_cmd { 288 __u8 num_disc_configs; 289 struct disc_config disc_configs[NCI_MAX_NUM_RF_CONFIGS]; 290 } __packed; 291 292 #define NCI_OP_RF_DISCOVER_SELECT_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x04) 293 struct nci_rf_discover_select_cmd { 294 __u8 rf_discovery_id; 295 __u8 rf_protocol; 296 __u8 rf_interface; 297 } __packed; 298 299 #define NCI_OP_RF_DEACTIVATE_CMD nci_opcode_pack(NCI_GID_RF_MGMT, 0x06) 300 struct nci_rf_deactivate_cmd { 301 __u8 type; 302 } __packed; 303 304 #define NCI_OP_NFCEE_DISCOVER_CMD nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00) 305 struct nci_nfcee_discover_cmd { 306 __u8 discovery_action; 307 } __packed; 308 309 #define NCI_OP_NFCEE_MODE_SET_CMD nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x01) 310 #define NCI_NFCEE_DISABLE 0x00 311 #define NCI_NFCEE_ENABLE 0x01 312 struct nci_nfcee_mode_set_cmd { 313 __u8 nfcee_id; 314 __u8 nfcee_mode; 315 } __packed; 316 317 /* ----------------------- */ 318 /* ---- NCI Responses ---- */ 319 /* ----------------------- */ 320 #define NCI_OP_CORE_RESET_RSP nci_opcode_pack(NCI_GID_CORE, 0x00) 321 struct nci_core_reset_rsp { 322 __u8 status; 323 __u8 nci_ver; 324 __u8 config_status; 325 } __packed; 326 327 #define NCI_OP_CORE_INIT_RSP nci_opcode_pack(NCI_GID_CORE, 0x01) 328 struct nci_core_init_rsp_1 { 329 __u8 status; 330 __le32 nfcc_features; 331 __u8 num_supported_rf_interfaces; 332 __u8 supported_rf_interfaces[0]; /* variable size array */ 333 /* continuted in nci_core_init_rsp_2 */ 334 } __packed; 335 336 struct nci_core_init_rsp_2 { 337 __u8 max_logical_connections; 338 __le16 max_routing_table_size; 339 __u8 max_ctrl_pkt_payload_len; 340 __le16 max_size_for_large_params; 341 __u8 manufact_id; 342 __le32 manufact_specific_info; 343 } __packed; 344 345 #define NCI_OP_CORE_SET_CONFIG_RSP nci_opcode_pack(NCI_GID_CORE, 0x02) 346 struct nci_core_set_config_rsp { 347 __u8 status; 348 __u8 num_params; 349 __u8 params_id[0]; /* variable size array */ 350 } __packed; 351 352 #define NCI_OP_CORE_CONN_CREATE_RSP nci_opcode_pack(NCI_GID_CORE, 0x04) 353 struct nci_core_conn_create_rsp { 354 __u8 status; 355 __u8 max_ctrl_pkt_payload_len; 356 __u8 credits_cnt; 357 __u8 conn_id; 358 } __packed; 359 360 #define NCI_OP_CORE_CONN_CLOSE_RSP nci_opcode_pack(NCI_GID_CORE, 0x05) 361 362 #define NCI_OP_RF_DISCOVER_MAP_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x00) 363 364 #define NCI_OP_RF_DISCOVER_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x03) 365 366 #define NCI_OP_RF_DISCOVER_SELECT_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x04) 367 368 #define NCI_OP_RF_DEACTIVATE_RSP nci_opcode_pack(NCI_GID_RF_MGMT, 0x06) 369 370 #define NCI_OP_NFCEE_DISCOVER_RSP nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00) 371 struct nci_nfcee_discover_rsp { 372 __u8 status; 373 __u8 num_nfcee; 374 } __packed; 375 376 #define NCI_OP_NFCEE_MODE_SET_RSP nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x01) 377 /* --------------------------- */ 378 /* ---- NCI Notifications ---- */ 379 /* --------------------------- */ 380 #define NCI_OP_CORE_CONN_CREDITS_NTF nci_opcode_pack(NCI_GID_CORE, 0x06) 381 struct conn_credit_entry { 382 __u8 conn_id; 383 __u8 credits; 384 } __packed; 385 386 struct nci_core_conn_credit_ntf { 387 __u8 num_entries; 388 struct conn_credit_entry conn_entries[NCI_MAX_NUM_CONN]; 389 } __packed; 390 391 #define NCI_OP_CORE_GENERIC_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x07) 392 393 #define NCI_OP_CORE_INTF_ERROR_NTF nci_opcode_pack(NCI_GID_CORE, 0x08) 394 struct nci_core_intf_error_ntf { 395 __u8 status; 396 __u8 conn_id; 397 } __packed; 398 399 #define NCI_OP_RF_DISCOVER_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x03) 400 struct rf_tech_specific_params_nfca_poll { 401 __u16 sens_res; 402 __u8 nfcid1_len; /* 0, 4, 7, or 10 Bytes */ 403 __u8 nfcid1[NFC_NFCID1_MAXSIZE]; 404 __u8 sel_res_len; /* 0 or 1 Bytes */ 405 __u8 sel_res; 406 } __packed; 407 408 struct rf_tech_specific_params_nfcb_poll { 409 __u8 sensb_res_len; 410 __u8 sensb_res[NFC_SENSB_RES_MAXSIZE]; /* 11 or 12 Bytes */ 411 } __packed; 412 413 struct rf_tech_specific_params_nfcf_poll { 414 __u8 bit_rate; 415 __u8 sensf_res_len; 416 __u8 sensf_res[NFC_SENSF_RES_MAXSIZE]; /* 16 or 18 Bytes */ 417 } __packed; 418 419 struct rf_tech_specific_params_nfcv_poll { 420 __u8 res_flags; 421 __u8 dsfid; 422 __u8 uid[NFC_ISO15693_UID_MAXSIZE]; /* 8 Bytes */ 423 } __packed; 424 425 struct rf_tech_specific_params_nfcf_listen { 426 __u8 local_nfcid2_len; 427 __u8 local_nfcid2[NFC_NFCID2_MAXSIZE]; /* 0 or 8 Bytes */ 428 } __packed; 429 430 struct nci_rf_discover_ntf { 431 __u8 rf_discovery_id; 432 __u8 rf_protocol; 433 __u8 rf_tech_and_mode; 434 __u8 rf_tech_specific_params_len; 435 436 union { 437 struct rf_tech_specific_params_nfca_poll nfca_poll; 438 struct rf_tech_specific_params_nfcb_poll nfcb_poll; 439 struct rf_tech_specific_params_nfcf_poll nfcf_poll; 440 struct rf_tech_specific_params_nfcv_poll nfcv_poll; 441 } rf_tech_specific_params; 442 443 __u8 ntf_type; 444 } __packed; 445 446 #define NCI_OP_RF_INTF_ACTIVATED_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x05) 447 struct activation_params_nfca_poll_iso_dep { 448 __u8 rats_res_len; 449 __u8 rats_res[20]; 450 }; 451 452 struct activation_params_nfcb_poll_iso_dep { 453 __u8 attrib_res_len; 454 __u8 attrib_res[50]; 455 }; 456 457 struct activation_params_poll_nfc_dep { 458 __u8 atr_res_len; 459 __u8 atr_res[NFC_ATR_RES_MAXSIZE - 2]; /* ATR_RES from byte 3 */ 460 }; 461 462 struct activation_params_listen_nfc_dep { 463 __u8 atr_req_len; 464 __u8 atr_req[NFC_ATR_REQ_MAXSIZE - 2]; /* ATR_REQ from byte 3 */ 465 }; 466 467 struct nci_rf_intf_activated_ntf { 468 __u8 rf_discovery_id; 469 __u8 rf_interface; 470 __u8 rf_protocol; 471 __u8 activation_rf_tech_and_mode; 472 __u8 max_data_pkt_payload_size; 473 __u8 initial_num_credits; 474 __u8 rf_tech_specific_params_len; 475 476 union { 477 struct rf_tech_specific_params_nfca_poll nfca_poll; 478 struct rf_tech_specific_params_nfcb_poll nfcb_poll; 479 struct rf_tech_specific_params_nfcf_poll nfcf_poll; 480 struct rf_tech_specific_params_nfcv_poll nfcv_poll; 481 struct rf_tech_specific_params_nfcf_listen nfcf_listen; 482 } rf_tech_specific_params; 483 484 __u8 data_exch_rf_tech_and_mode; 485 __u8 data_exch_tx_bit_rate; 486 __u8 data_exch_rx_bit_rate; 487 __u8 activation_params_len; 488 489 union { 490 struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep; 491 struct activation_params_nfcb_poll_iso_dep nfcb_poll_iso_dep; 492 struct activation_params_poll_nfc_dep poll_nfc_dep; 493 struct activation_params_listen_nfc_dep listen_nfc_dep; 494 } activation_params; 495 496 } __packed; 497 498 #define NCI_OP_RF_DEACTIVATE_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x06) 499 struct nci_rf_deactivate_ntf { 500 __u8 type; 501 __u8 reason; 502 } __packed; 503 504 #define NCI_OP_RF_NFCEE_ACTION_NTF nci_opcode_pack(NCI_GID_RF_MGMT, 0x09) 505 struct nci_rf_nfcee_action_ntf { 506 __u8 nfcee_id; 507 __u8 trigger; 508 __u8 supported_data_length; 509 __u8 supported_data[0]; 510 } __packed; 511 512 #define NCI_OP_NFCEE_DISCOVER_NTF nci_opcode_pack(NCI_GID_NFCEE_MGMT, 0x00) 513 struct nci_nfcee_supported_protocol { 514 __u8 num_protocol; 515 __u8 supported_protocol[0]; 516 } __packed; 517 518 struct nci_nfcee_information_tlv { 519 __u8 num_tlv; 520 __u8 information_tlv[0]; 521 } __packed; 522 523 struct nci_nfcee_discover_ntf { 524 __u8 nfcee_id; 525 __u8 nfcee_status; 526 struct nci_nfcee_supported_protocol supported_protocols; 527 struct nci_nfcee_information_tlv information_tlv; 528 } __packed; 529 530 #endif /* __NCI_H */ 531