include/net/nfc/nci.h

   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.h, 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 #ifndef __NCI_H
  29 #define __NCI_H
  30
  31 /* NCI constants */
  32 #define NCI_MAX_NUM_MAPPING_CONFIGS                             10
  33 #define NCI_MAX_NUM_RF_CONFIGS                                  10
  34 #define NCI_MAX_NUM_CONN                                        10
  35 #define NCI_MAX_PARAM_LEN                                       251
  36
  37 /* NCI Status Codes */
  38 #define NCI_STATUS_OK                                           0x00
  39 #define NCI_STATUS_REJECTED                                     0x01
  40 #define NCI_STATUS_RF_FRAME_CORRUPTED                           0x02
  41 #define NCI_STATUS_FAILED                                       0x03
  42 #define NCI_STATUS_NOT_INITIALIZED                              0x04
  43 #define NCI_STATUS_SYNTAX_ERROR                                 0x05
  44 #define NCI_STATUS_SEMANTIC_ERROR                               0x06
  45 #define NCI_STATUS_UNKNOWN_GID                                  0x07
  46 #define NCI_STATUS_UNKNOWN_OID                                  0x08
  47 #define NCI_STATUS_INVALID_PARAM                                0x09
  48 #define NCI_STATUS_MESSAGE_SIZE_EXCEEDED                        0x0a
  49 /* Discovery Specific Status Codes */
  50 #define NCI_STATUS_DISCOVERY_ALREADY_STARTED                    0xa0
  51 #define NCI_STATUS_DISCOVERY_TARGET_ACTIVATION_FAILED           0xa1
  52 #define NCI_STATUS_DISCOVERY_TEAR_DOWN                          0xa2
  53 /* RF Interface Specific Status Codes */
  54 #define NCI_STATUS_RF_TRANSMISSION_ERROR                        0xb0
  55 #define NCI_STATUS_RF_PROTOCOL_ERROR                            0xb1
  56 #define NCI_STATUS_RF_TIMEOUT_ERROR                             0xb2
  57 /* NFCEE Interface Specific Status Codes */
  58 #define NCI_STATUS_NFCEE_INTERFACE_ACTIVATION_FAILED            0xc0
  59 #define NCI_STATUS_NFCEE_TRANSMISSION_ERROR                     0xc1
  60 #define NCI_STATUS_NFCEE_PROTOCOL_ERROR                         0xc2
  61 #define NCI_STATUS_NFCEE_TIMEOUT_ERROR                          0xc3
  62
  63 /* NCI RF Technology and Mode */
  64 #define NCI_NFC_A_PASSIVE_POLL_MODE                             0x00
  65 #define NCI_NFC_B_PASSIVE_POLL_MODE                             0x01
  66 #define NCI_NFC_F_PASSIVE_POLL_MODE                             0x02
  67 #define NCI_NFC_A_ACTIVE_POLL_MODE                              0x03
  68 #define NCI_NFC_F_ACTIVE_POLL_MODE                              0x05
  69 #define NCI_NFC_15693_PASSIVE_POLL_MODE                         0x06
  70 #define NCI_NFC_A_PASSIVE_LISTEN_MODE                           0x80
  71 #define NCI_NFC_B_PASSIVE_LISTEN_MODE                           0x81
  72 #define NCI_NFC_F_PASSIVE_LISTEN_MODE                           0x82
  73 #define NCI_NFC_A_ACTIVE_LISTEN_MODE                            0x83
  74 #define NCI_NFC_F_ACTIVE_LISTEN_MODE                            0x85
  75 #define NCI_NFC_15693_PASSIVE_LISTEN_MODE                       0x86
  76
  77 /* NCI RF Technologies */
  78 #define NCI_NFC_RF_TECHNOLOGY_A                                 0x00
  79 #define NCI_NFC_RF_TECHNOLOGY_B                                 0x01
  80 #define NCI_NFC_RF_TECHNOLOGY_F                                 0x02
  81 #define NCI_NFC_RF_TECHNOLOGY_15693                             0x03
  82
  83 /* NCI Bit Rates */
  84 #define NCI_NFC_BIT_RATE_106                                    0x00
  85 #define NCI_NFC_BIT_RATE_212                                    0x01
  86 #define NCI_NFC_BIT_RATE_424                                    0x02
  87 #define NCI_NFC_BIT_RATE_848                                    0x03
  88 #define NCI_NFC_BIT_RATE_1695                                   0x04
  89 #define NCI_NFC_BIT_RATE_3390                                   0x05
  90 #define NCI_NFC_BIT_RATE_6780                                   0x06
  91
  92 /* NCI RF Protocols */
  93 #define NCI_RF_PROTOCOL_UNKNOWN                                 0x00
  94 #define NCI_RF_PROTOCOL_T1T                                     0x01
  95 #define NCI_RF_PROTOCOL_T2T                                     0x02
  96 #define NCI_RF_PROTOCOL_T3T                                     0x03
  97 #define NCI_RF_PROTOCOL_ISO_DEP                                 0x04
  98 #define NCI_RF_PROTOCOL_NFC_DEP                                 0x05
  99
 100 /* NCI RF Interfaces */
 101 #define NCI_RF_INTERFACE_NFCEE_DIRECT                           0x00
 102 #define NCI_RF_INTERFACE_FRAME                                  0x01
 103 #define NCI_RF_INTERFACE_ISO_DEP                                0x02
 104 #define NCI_RF_INTERFACE_NFC_DEP                                0x03
 105
 106 /* NCI Configuration Parameter Tags */
 107 #define NCI_PN_ATR_REQ_GEN_BYTES                                0x29
 108
 109 /* NCI Reset types */
 110 #define NCI_RESET_TYPE_KEEP_CONFIG                              0x00
 111 #define NCI_RESET_TYPE_RESET_CONFIG                             0x01
 112
 113 /* NCI Static RF connection ID */
 114 #define NCI_STATIC_RF_CONN_ID                                   0x00
 115
 116 /* NCI Data Flow Control */
 117 #define NCI_DATA_FLOW_CONTROL_NOT_USED                          0xff
 118
 119 /* NCI RF_DISCOVER_MAP_CMD modes */
 120 #define NCI_DISC_MAP_MODE_POLL                                  0x01
 121 #define NCI_DISC_MAP_MODE_LISTEN                                0x02
 122
 123 /* NCI Discover Notification Type */
 124 #define NCI_DISCOVER_NTF_TYPE_LAST                              0x00
 125 #define NCI_DISCOVER_NTF_TYPE_LAST_NFCC                         0x01
 126 #define NCI_DISCOVER_NTF_TYPE_MORE                              0x02
 127
 128 /* NCI Deactivation Type */
 129 #define NCI_DEACTIVATE_TYPE_IDLE_MODE                           0x00
 130 #define NCI_DEACTIVATE_TYPE_SLEEP_MODE                          0x01
 131 #define NCI_DEACTIVATE_TYPE_SLEEP_AF_MODE                       0x02
 132 #define NCI_DEACTIVATE_TYPE_DISCOVERY                           0x03
 133
 134 /* Message Type (MT) */
 135 #define NCI_MT_DATA_PKT                                         0x00
 136 #define NCI_MT_CMD_PKT                                          0x01
 137 #define NCI_MT_RSP_PKT                                          0x02
 138 #define NCI_MT_NTF_PKT                                          0x03
 139
 140 #define nci_mt(hdr)                     (((hdr)[0]>>5)&0x07)
 141 #define nci_mt_set(hdr, mt)             ((hdr)[0] |= (__u8)(((mt)&0x07)<<5))
 142
 143 /* Packet Boundary Flag (PBF) */
 144 #define NCI_PBF_LAST                                            0x00
 145 #define NCI_PBF_CONT                                            0x01
 146
 147 #define nci_pbf(hdr)                    (__u8)(((hdr)[0]>>4)&0x01)
 148 #define nci_pbf_set(hdr, pbf)           ((hdr)[0] |= (__u8)(((pbf)&0x01)<<4))
 149
 150 /* Control Opcode manipulation */
 151 #define nci_opcode_pack(gid, oid)       (__u16)((((__u16)((gid)&0x0f))<<8)|\
 152                                         ((__u16)((oid)&0x3f)))
 153 #define nci_opcode(hdr)                 nci_opcode_pack(hdr[0], hdr[1])
 154 #define nci_opcode_gid(op)              (__u8)(((op)&0x0f00)>>8)
 155 #define nci_opcode_oid(op)              (__u8)((op)&0x003f)
 156
 157 /* Payload Length */
 158 #define nci_plen(hdr)                   (__u8)((hdr)[2])
 159
 160 /* Connection ID */
 161 #define nci_conn_id(hdr)                (__u8)(((hdr)[0])&0x0f)
 162
 163 /* GID values */
 164 #define NCI_GID_CORE                                            0x0
 165 #define NCI_GID_RF_MGMT                                         0x1
 166 #define NCI_GID_NFCEE_MGMT                                      0x2
 167 #define NCI_GID_PROPRIETARY                                     0xf
 168
 169 /* ---- NCI Packet structures ---- */
 170 #define NCI_CTRL_HDR_SIZE                                       3
 171 #define NCI_DATA_HDR_SIZE                                       3
 172
 173 struct nci_ctrl_hdr {
 174         __u8    gid;            /* MT & PBF & GID */
 175         __u8    oid;
 176         __u8    plen;
 177 } __packed;
 178
 179 struct nci_data_hdr {
 180         __u8    conn_id;        /* MT & PBF & ConnID */
 181         __u8    rfu;
 182         __u8    plen;
 183 } __packed;
 184
 185 /* ------------------------ */
 186 /* -----  NCI Commands ---- */
 187 /* ------------------------ */
 188 #define NCI_OP_CORE_RESET_CMD           nci_opcode_pack(NCI_GID_CORE, 0x00)
 189 struct nci_core_reset_cmd {
 190         __u8    reset_type;
 191 } __packed;
 192
 193 #define NCI_OP_CORE_INIT_CMD            nci_opcode_pack(NCI_GID_CORE, 0x01)
 194
 195 #define NCI_OP_CORE_SET_CONFIG_CMD      nci_opcode_pack(NCI_GID_CORE, 0x02)
 196 struct set_config_param {
 197         __u8    id;
 198         __u8    len;
 199         __u8    val[NCI_MAX_PARAM_LEN];
 200 } __packed;
 201
 202 struct nci_core_set_config_cmd {
 203         __u8    num_params;
 204         struct  set_config_param param; /* support 1 param per cmd is enough */
 205 } __packed;
 206
 207 #define NCI_OP_RF_DISCOVER_MAP_CMD      nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
 208 struct disc_map_config {
 209         __u8    rf_protocol;
 210         __u8    mode;
 211         __u8    rf_interface;
 212 } __packed;
 213
 214 struct nci_rf_disc_map_cmd {
 215         __u8                            num_mapping_configs;
 216         struct disc_map_config          mapping_configs
 217                                         [NCI_MAX_NUM_MAPPING_CONFIGS];
 218 } __packed;
 219
 220 #define NCI_OP_RF_DISCOVER_CMD          nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
 221 struct disc_config {
 222         __u8    rf_tech_and_mode;
 223         __u8    frequency;
 224 } __packed;
 225
 226 struct nci_rf_disc_cmd {
 227         __u8                            num_disc_configs;
 228         struct disc_config              disc_configs[NCI_MAX_NUM_RF_CONFIGS];
 229 } __packed;
 230
 231 #define NCI_OP_RF_DISCOVER_SELECT_CMD   nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
 232 struct nci_rf_discover_select_cmd {
 233         __u8    rf_discovery_id;
 234         __u8    rf_protocol;
 235         __u8    rf_interface;
 236 } __packed;
 237
 238 #define NCI_OP_RF_DEACTIVATE_CMD        nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
 239 struct nci_rf_deactivate_cmd {
 240         __u8    type;
 241 } __packed;
 242
 243 /* ----------------------- */
 244 /* ---- NCI Responses ---- */
 245 /* ----------------------- */
 246 #define NCI_OP_CORE_RESET_RSP           nci_opcode_pack(NCI_GID_CORE, 0x00)
 247 struct nci_core_reset_rsp {
 248         __u8    status;
 249         __u8    nci_ver;
 250         __u8    config_status;
 251 } __packed;
 252
 253 #define NCI_OP_CORE_INIT_RSP            nci_opcode_pack(NCI_GID_CORE, 0x01)
 254 struct nci_core_init_rsp_1 {
 255         __u8    status;
 256         __le32  nfcc_features;
 257         __u8    num_supported_rf_interfaces;
 258         __u8    supported_rf_interfaces[0];     /* variable size array */
 259         /* continuted in nci_core_init_rsp_2 */
 260 } __packed;
 261
 262 struct nci_core_init_rsp_2 {
 263         __u8    max_logical_connections;
 264         __le16  max_routing_table_size;
 265         __u8    max_ctrl_pkt_payload_len;
 266         __le16  max_size_for_large_params;
 267         __u8    manufact_id;
 268         __le32  manufact_specific_info;
 269 } __packed;
 270
 271 #define NCI_OP_CORE_SET_CONFIG_RSP      nci_opcode_pack(NCI_GID_CORE, 0x02)
 272 struct nci_core_set_config_rsp {
 273         __u8    status;
 274         __u8    num_params;
 275         __u8    params_id[0];   /* variable size array */
 276 } __packed;
 277
 278 #define NCI_OP_RF_DISCOVER_MAP_RSP      nci_opcode_pack(NCI_GID_RF_MGMT, 0x00)
 279
 280 #define NCI_OP_RF_DISCOVER_RSP          nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
 281
 282 #define NCI_OP_RF_DISCOVER_SELECT_RSP   nci_opcode_pack(NCI_GID_RF_MGMT, 0x04)
 283
 284 #define NCI_OP_RF_DEACTIVATE_RSP        nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
 285
 286 /* --------------------------- */
 287 /* ---- NCI Notifications ---- */
 288 /* --------------------------- */
 289 #define NCI_OP_CORE_CONN_CREDITS_NTF    nci_opcode_pack(NCI_GID_CORE, 0x06)
 290 struct conn_credit_entry {
 291         __u8    conn_id;
 292         __u8    credits;
 293 } __packed;
 294
 295 struct nci_core_conn_credit_ntf {
 296         __u8                            num_entries;
 297         struct conn_credit_entry        conn_entries[NCI_MAX_NUM_CONN];
 298 } __packed;
 299
 300 #define NCI_OP_CORE_GENERIC_ERROR_NTF   nci_opcode_pack(NCI_GID_CORE, 0x07)
 301
 302 #define NCI_OP_CORE_INTF_ERROR_NTF      nci_opcode_pack(NCI_GID_CORE, 0x08)
 303 struct nci_core_intf_error_ntf {
 304         __u8    status;
 305         __u8    conn_id;
 306 } __packed;
 307
 308 #define NCI_OP_RF_DISCOVER_NTF          nci_opcode_pack(NCI_GID_RF_MGMT, 0x03)
 309 struct rf_tech_specific_params_nfca_poll {
 310         __u16   sens_res;
 311         __u8    nfcid1_len;     /* 0, 4, 7, or 10 Bytes */
 312         __u8    nfcid1[10];
 313         __u8    sel_res_len;    /* 0 or 1 Bytes */
 314         __u8    sel_res;
 315 } __packed;
 316
 317 struct rf_tech_specific_params_nfcb_poll {
 318         __u8    sensb_res_len;
 319         __u8    sensb_res[12];  /* 11 or 12 Bytes */
 320 } __packed;
 321
 322 struct rf_tech_specific_params_nfcf_poll {
 323         __u8    bit_rate;
 324         __u8    sensf_res_len;
 325         __u8    sensf_res[18];  /* 16 or 18 Bytes */
 326 } __packed;
 327
 328 struct nci_rf_discover_ntf {
 329         __u8    rf_discovery_id;
 330         __u8    rf_protocol;
 331         __u8    rf_tech_and_mode;
 332         __u8    rf_tech_specific_params_len;
 333
 334         union {
 335                 struct rf_tech_specific_params_nfca_poll nfca_poll;
 336                 struct rf_tech_specific_params_nfcb_poll nfcb_poll;
 337                 struct rf_tech_specific_params_nfcf_poll nfcf_poll;
 338         } rf_tech_specific_params;
 339
 340         __u8    ntf_type;
 341 } __packed;
 342
 343 #define NCI_OP_RF_INTF_ACTIVATED_NTF    nci_opcode_pack(NCI_GID_RF_MGMT, 0x05)
 344 struct activation_params_nfca_poll_iso_dep {
 345         __u8    rats_res_len;
 346         __u8    rats_res[20];
 347 };
 348
 349 struct activation_params_nfcb_poll_iso_dep {
 350         __u8    attrib_res_len;
 351         __u8    attrib_res[50];
 352 };
 353
 354 struct activation_params_poll_nfc_dep {
 355         __u8    atr_res_len;
 356         __u8    atr_res[63];
 357 };
 358
 359 struct nci_rf_intf_activated_ntf {
 360         __u8    rf_discovery_id;
 361         __u8    rf_interface;
 362         __u8    rf_protocol;
 363         __u8    activation_rf_tech_and_mode;
 364         __u8    max_data_pkt_payload_size;
 365         __u8    initial_num_credits;
 366         __u8    rf_tech_specific_params_len;
 367
 368         union {
 369                 struct rf_tech_specific_params_nfca_poll nfca_poll;
 370                 struct rf_tech_specific_params_nfcb_poll nfcb_poll;
 371                 struct rf_tech_specific_params_nfcf_poll nfcf_poll;
 372         } rf_tech_specific_params;
 373
 374         __u8    data_exch_rf_tech_and_mode;
 375         __u8    data_exch_tx_bit_rate;
 376         __u8    data_exch_rx_bit_rate;
 377         __u8    activation_params_len;
 378
 379         union {
 380                 struct activation_params_nfca_poll_iso_dep nfca_poll_iso_dep;
 381                 struct activation_params_nfcb_poll_iso_dep nfcb_poll_iso_dep;
 382                 struct activation_params_poll_nfc_dep poll_nfc_dep;
 383         } activation_params;
 384
 385 } __packed;
 386
 387 #define NCI_OP_RF_DEACTIVATE_NTF        nci_opcode_pack(NCI_GID_RF_MGMT, 0x06)
 388 struct nci_rf_deactivate_ntf {
 389         __u8    type;
 390         __u8    reason;
 391 } __packed;
 392
 393 #endif /* __NCI_H */