1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* ------------------------------------------------------------------------- 3 * Copyright (C) 2014-2016, Intel Corporation 4 * 5 * ------------------------------------------------------------------------- 6 */ 7 8 #include <linux/module.h> 9 #include <linux/nfc.h> 10 #include <linux/i2c.h> 11 #include <linux/delay.h> 12 #include <linux/firmware.h> 13 #include <net/nfc/nci_core.h> 14 15 #include "fdp.h" 16 17 #define FDP_OTP_PATCH_NAME "otp.bin" 18 #define FDP_RAM_PATCH_NAME "ram.bin" 19 #define FDP_FW_HEADER_SIZE 576 20 #define FDP_FW_UPDATE_SLEEP 1000 21 22 #define NCI_GET_VERSION_TIMEOUT 8000 23 #define NCI_PATCH_REQUEST_TIMEOUT 8000 24 #define FDP_PATCH_CONN_DEST 0xC2 25 #define FDP_PATCH_CONN_PARAM_TYPE 0xA0 26 27 #define NCI_PATCH_TYPE_RAM 0x00 28 #define NCI_PATCH_TYPE_OTP 0x01 29 #define NCI_PATCH_TYPE_EOT 0xFF 30 31 #define NCI_PARAM_ID_FW_RAM_VERSION 0xA0 32 #define NCI_PARAM_ID_FW_OTP_VERSION 0xA1 33 #define NCI_PARAM_ID_OTP_LIMITED_VERSION 0xC5 34 #define NCI_PARAM_ID_KEY_INDEX_ID 0xC6 35 36 #define NCI_GID_PROP 0x0F 37 #define NCI_OP_PROP_PATCH_OID 0x08 38 #define NCI_OP_PROP_SET_PDATA_OID 0x23 39 40 struct fdp_nci_info { 41 struct nfc_phy_ops *phy_ops; 42 struct fdp_i2c_phy *phy; 43 struct nci_dev *ndev; 44 45 const struct firmware *otp_patch; 46 const struct firmware *ram_patch; 47 u32 otp_patch_version; 48 u32 ram_patch_version; 49 50 u32 otp_version; 51 u32 ram_version; 52 u32 limited_otp_version; 53 u8 key_index; 54 55 u8 *fw_vsc_cfg; 56 u8 clock_type; 57 u32 clock_freq; 58 59 atomic_t data_pkt_counter; 60 void (*data_pkt_counter_cb)(struct nci_dev *ndev); 61 u8 setup_patch_sent; 62 u8 setup_patch_ntf; 63 u8 setup_patch_status; 64 u8 setup_reset_ntf; 65 wait_queue_head_t setup_wq; 66 }; 67 68 static u8 nci_core_get_config_otp_ram_version[5] = { 69 0x04, 70 NCI_PARAM_ID_FW_RAM_VERSION, 71 NCI_PARAM_ID_FW_OTP_VERSION, 72 NCI_PARAM_ID_OTP_LIMITED_VERSION, 73 NCI_PARAM_ID_KEY_INDEX_ID 74 }; 75 76 struct nci_core_get_config_rsp { 77 u8 status; 78 u8 count; 79 u8 data[]; 80 }; 81 82 static int fdp_nci_create_conn(struct nci_dev *ndev) 83 { 84 struct fdp_nci_info *info = nci_get_drvdata(ndev); 85 struct core_conn_create_dest_spec_params param; 86 int r; 87 88 /* proprietary destination specific paramerer without value */ 89 param.type = FDP_PATCH_CONN_PARAM_TYPE; 90 param.length = 0x00; 91 92 r = nci_core_conn_create(info->ndev, FDP_PATCH_CONN_DEST, 1, 93 sizeof(param), ¶m); 94 if (r) 95 return r; 96 97 return nci_get_conn_info_by_dest_type_params(ndev, 98 FDP_PATCH_CONN_DEST, NULL); 99 } 100 101 static inline int fdp_nci_get_versions(struct nci_dev *ndev) 102 { 103 return nci_core_cmd(ndev, NCI_OP_CORE_GET_CONFIG_CMD, 104 sizeof(nci_core_get_config_otp_ram_version), 105 (__u8 *) &nci_core_get_config_otp_ram_version); 106 } 107 108 static inline int fdp_nci_patch_cmd(struct nci_dev *ndev, u8 type) 109 { 110 return nci_prop_cmd(ndev, NCI_OP_PROP_PATCH_OID, sizeof(type), &type); 111 } 112 113 static inline int fdp_nci_set_production_data(struct nci_dev *ndev, u8 len, 114 char *data) 115 { 116 return nci_prop_cmd(ndev, NCI_OP_PROP_SET_PDATA_OID, len, data); 117 } 118 119 static int fdp_nci_set_clock(struct nci_dev *ndev, u8 clock_type, 120 u32 clock_freq) 121 { 122 u32 fc = 13560; 123 u32 nd, num, delta; 124 char data[9]; 125 126 nd = (24 * fc) / clock_freq; 127 delta = 24 * fc - nd * clock_freq; 128 num = (32768 * delta) / clock_freq; 129 130 data[0] = 0x00; 131 data[1] = 0x00; 132 data[2] = 0x00; 133 134 data[3] = 0x10; 135 data[4] = 0x04; 136 data[5] = num & 0xFF; 137 data[6] = (num >> 8) & 0xff; 138 data[7] = nd; 139 data[8] = clock_type; 140 141 return fdp_nci_set_production_data(ndev, 9, data); 142 } 143 144 static void fdp_nci_send_patch_cb(struct nci_dev *ndev) 145 { 146 struct fdp_nci_info *info = nci_get_drvdata(ndev); 147 148 info->setup_patch_sent = 1; 149 wake_up(&info->setup_wq); 150 } 151 152 /* 153 * Register a packet sent counter and a callback 154 * 155 * We have no other way of knowing when all firmware packets were sent out 156 * on the i2c bus. We need to know that in order to close the connection and 157 * send the patch end message. 158 */ 159 static void fdp_nci_set_data_pkt_counter(struct nci_dev *ndev, 160 void (*cb)(struct nci_dev *ndev), int count) 161 { 162 struct fdp_nci_info *info = nci_get_drvdata(ndev); 163 struct device *dev = &info->phy->i2c_dev->dev; 164 165 dev_dbg(dev, "NCI data pkt counter %d\n", count); 166 atomic_set(&info->data_pkt_counter, count); 167 info->data_pkt_counter_cb = cb; 168 } 169 170 /* 171 * The device is expecting a stream of packets. All packets need to 172 * have the PBF flag set to 0x0 (last packet) even if the firmware 173 * file is segmented and there are multiple packets. If we give the 174 * whole firmware to nci_send_data it will segment it and it will set 175 * the PBF flag to 0x01 so we need to do the segmentation here. 176 * 177 * The firmware will be analyzed and applied when we send NCI_OP_PROP_PATCH_CMD 178 * command with NCI_PATCH_TYPE_EOT parameter. The device will send a 179 * NFCC_PATCH_NTF packet and a NCI_OP_CORE_RESET_NTF packet. 180 */ 181 static int fdp_nci_send_patch(struct nci_dev *ndev, u8 conn_id, u8 type) 182 { 183 struct fdp_nci_info *info = nci_get_drvdata(ndev); 184 const struct firmware *fw; 185 struct sk_buff *skb; 186 unsigned long len; 187 int max_size, payload_size; 188 int rc = 0; 189 190 if ((type == NCI_PATCH_TYPE_OTP && !info->otp_patch) || 191 (type == NCI_PATCH_TYPE_RAM && !info->ram_patch)) 192 return -EINVAL; 193 194 if (type == NCI_PATCH_TYPE_OTP) 195 fw = info->otp_patch; 196 else 197 fw = info->ram_patch; 198 199 max_size = nci_conn_max_data_pkt_payload_size(ndev, conn_id); 200 if (max_size <= 0) 201 return -EINVAL; 202 203 len = fw->size; 204 205 fdp_nci_set_data_pkt_counter(ndev, fdp_nci_send_patch_cb, 206 DIV_ROUND_UP(fw->size, max_size)); 207 208 while (len) { 209 210 payload_size = min_t(unsigned long, max_size, len); 211 212 skb = nci_skb_alloc(ndev, (NCI_CTRL_HDR_SIZE + payload_size), 213 GFP_KERNEL); 214 if (!skb) { 215 fdp_nci_set_data_pkt_counter(ndev, NULL, 0); 216 return -ENOMEM; 217 } 218 219 220 skb_reserve(skb, NCI_CTRL_HDR_SIZE); 221 222 skb_put_data(skb, fw->data + (fw->size - len), payload_size); 223 224 rc = nci_send_data(ndev, conn_id, skb); 225 226 if (rc) { 227 fdp_nci_set_data_pkt_counter(ndev, NULL, 0); 228 return rc; 229 } 230 231 len -= payload_size; 232 } 233 234 return rc; 235 } 236 237 static int fdp_nci_open(struct nci_dev *ndev) 238 { 239 struct fdp_nci_info *info = nci_get_drvdata(ndev); 240 241 return info->phy_ops->enable(info->phy); 242 } 243 244 static int fdp_nci_close(struct nci_dev *ndev) 245 { 246 return 0; 247 } 248 249 static int fdp_nci_send(struct nci_dev *ndev, struct sk_buff *skb) 250 { 251 struct fdp_nci_info *info = nci_get_drvdata(ndev); 252 253 if (atomic_dec_and_test(&info->data_pkt_counter)) 254 info->data_pkt_counter_cb(ndev); 255 256 return info->phy_ops->write(info->phy, skb); 257 } 258 259 static int fdp_nci_request_firmware(struct nci_dev *ndev) 260 { 261 struct fdp_nci_info *info = nci_get_drvdata(ndev); 262 struct device *dev = &info->phy->i2c_dev->dev; 263 u8 *data; 264 int r; 265 266 r = request_firmware(&info->ram_patch, FDP_RAM_PATCH_NAME, dev); 267 if (r < 0) { 268 nfc_err(dev, "RAM patch request error\n"); 269 return r; 270 } 271 272 data = (u8 *) info->ram_patch->data; 273 info->ram_patch_version = 274 data[FDP_FW_HEADER_SIZE] | 275 (data[FDP_FW_HEADER_SIZE + 1] << 8) | 276 (data[FDP_FW_HEADER_SIZE + 2] << 16) | 277 (data[FDP_FW_HEADER_SIZE + 3] << 24); 278 279 dev_dbg(dev, "RAM patch version: %d, size: %d\n", 280 info->ram_patch_version, (int) info->ram_patch->size); 281 282 283 r = request_firmware(&info->otp_patch, FDP_OTP_PATCH_NAME, dev); 284 if (r < 0) { 285 nfc_err(dev, "OTP patch request error\n"); 286 return 0; 287 } 288 289 data = (u8 *) info->otp_patch->data; 290 info->otp_patch_version = 291 data[FDP_FW_HEADER_SIZE] | 292 (data[FDP_FW_HEADER_SIZE + 1] << 8) | 293 (data[FDP_FW_HEADER_SIZE+2] << 16) | 294 (data[FDP_FW_HEADER_SIZE+3] << 24); 295 296 dev_dbg(dev, "OTP patch version: %d, size: %d\n", 297 info->otp_patch_version, (int) info->otp_patch->size); 298 return 0; 299 } 300 301 static void fdp_nci_release_firmware(struct nci_dev *ndev) 302 { 303 struct fdp_nci_info *info = nci_get_drvdata(ndev); 304 305 if (info->otp_patch) { 306 release_firmware(info->otp_patch); 307 info->otp_patch = NULL; 308 } 309 310 if (info->ram_patch) { 311 release_firmware(info->ram_patch); 312 info->ram_patch = NULL; 313 } 314 } 315 316 static int fdp_nci_patch_otp(struct nci_dev *ndev) 317 { 318 struct fdp_nci_info *info = nci_get_drvdata(ndev); 319 struct device *dev = &info->phy->i2c_dev->dev; 320 int conn_id; 321 int r = 0; 322 323 if (info->otp_version >= info->otp_patch_version) 324 return r; 325 326 info->setup_patch_sent = 0; 327 info->setup_reset_ntf = 0; 328 info->setup_patch_ntf = 0; 329 330 /* Patch init request */ 331 r = fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_OTP); 332 if (r) 333 return r; 334 335 /* Patch data connection creation */ 336 conn_id = fdp_nci_create_conn(ndev); 337 if (conn_id < 0) 338 return conn_id; 339 340 /* Send the patch over the data connection */ 341 r = fdp_nci_send_patch(ndev, conn_id, NCI_PATCH_TYPE_OTP); 342 if (r) 343 return r; 344 345 /* Wait for all the packets to be send over i2c */ 346 wait_event_interruptible(info->setup_wq, 347 info->setup_patch_sent == 1); 348 349 /* make sure that the NFCC processed the last data packet */ 350 msleep(FDP_FW_UPDATE_SLEEP); 351 352 /* Close the data connection */ 353 r = nci_core_conn_close(info->ndev, conn_id); 354 if (r) 355 return r; 356 357 /* Patch finish message */ 358 if (fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_EOT)) { 359 nfc_err(dev, "OTP patch error 0x%x\n", r); 360 return -EINVAL; 361 } 362 363 /* If the patch notification didn't arrive yet, wait for it */ 364 wait_event_interruptible(info->setup_wq, info->setup_patch_ntf); 365 366 /* Check if the patching was successful */ 367 r = info->setup_patch_status; 368 if (r) { 369 nfc_err(dev, "OTP patch error 0x%x\n", r); 370 return -EINVAL; 371 } 372 373 /* 374 * We need to wait for the reset notification before we 375 * can continue 376 */ 377 wait_event_interruptible(info->setup_wq, info->setup_reset_ntf); 378 379 return r; 380 } 381 382 static int fdp_nci_patch_ram(struct nci_dev *ndev) 383 { 384 struct fdp_nci_info *info = nci_get_drvdata(ndev); 385 struct device *dev = &info->phy->i2c_dev->dev; 386 int conn_id; 387 int r = 0; 388 389 if (info->ram_version >= info->ram_patch_version) 390 return r; 391 392 info->setup_patch_sent = 0; 393 info->setup_reset_ntf = 0; 394 info->setup_patch_ntf = 0; 395 396 /* Patch init request */ 397 r = fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_RAM); 398 if (r) 399 return r; 400 401 /* Patch data connection creation */ 402 conn_id = fdp_nci_create_conn(ndev); 403 if (conn_id < 0) 404 return conn_id; 405 406 /* Send the patch over the data connection */ 407 r = fdp_nci_send_patch(ndev, conn_id, NCI_PATCH_TYPE_RAM); 408 if (r) 409 return r; 410 411 /* Wait for all the packets to be send over i2c */ 412 wait_event_interruptible(info->setup_wq, 413 info->setup_patch_sent == 1); 414 415 /* make sure that the NFCC processed the last data packet */ 416 msleep(FDP_FW_UPDATE_SLEEP); 417 418 /* Close the data connection */ 419 r = nci_core_conn_close(info->ndev, conn_id); 420 if (r) 421 return r; 422 423 /* Patch finish message */ 424 if (fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_EOT)) { 425 nfc_err(dev, "RAM patch error 0x%x\n", r); 426 return -EINVAL; 427 } 428 429 /* If the patch notification didn't arrive yet, wait for it */ 430 wait_event_interruptible(info->setup_wq, info->setup_patch_ntf); 431 432 /* Check if the patching was successful */ 433 r = info->setup_patch_status; 434 if (r) { 435 nfc_err(dev, "RAM patch error 0x%x\n", r); 436 return -EINVAL; 437 } 438 439 /* 440 * We need to wait for the reset notification before we 441 * can continue 442 */ 443 wait_event_interruptible(info->setup_wq, info->setup_reset_ntf); 444 445 return r; 446 } 447 448 static int fdp_nci_setup(struct nci_dev *ndev) 449 { 450 /* Format: total length followed by an NCI packet */ 451 struct fdp_nci_info *info = nci_get_drvdata(ndev); 452 struct device *dev = &info->phy->i2c_dev->dev; 453 int r; 454 u8 patched = 0; 455 456 r = nci_core_init(ndev); 457 if (r) 458 goto error; 459 460 /* Get RAM and OTP version */ 461 r = fdp_nci_get_versions(ndev); 462 if (r) 463 goto error; 464 465 /* Load firmware from disk */ 466 r = fdp_nci_request_firmware(ndev); 467 if (r) 468 goto error; 469 470 /* Update OTP */ 471 if (info->otp_version < info->otp_patch_version) { 472 r = fdp_nci_patch_otp(ndev); 473 if (r) 474 goto error; 475 patched = 1; 476 } 477 478 /* Update RAM */ 479 if (info->ram_version < info->ram_patch_version) { 480 r = fdp_nci_patch_ram(ndev); 481 if (r) 482 goto error; 483 patched = 1; 484 } 485 486 /* Release the firmware buffers */ 487 fdp_nci_release_firmware(ndev); 488 489 /* If a patch was applied the new version is checked */ 490 if (patched) { 491 r = nci_core_init(ndev); 492 if (r) 493 goto error; 494 495 r = fdp_nci_get_versions(ndev); 496 if (r) 497 goto error; 498 499 if (info->otp_version != info->otp_patch_version || 500 info->ram_version != info->ram_patch_version) { 501 nfc_err(dev, "Firmware update failed"); 502 r = -EINVAL; 503 goto error; 504 } 505 } 506 507 /* 508 * We initialized the devices but the NFC subsystem expects 509 * it to not be initialized. 510 */ 511 return nci_core_reset(ndev); 512 513 error: 514 fdp_nci_release_firmware(ndev); 515 nfc_err(dev, "Setup error %d\n", r); 516 return r; 517 } 518 519 static int fdp_nci_post_setup(struct nci_dev *ndev) 520 { 521 struct fdp_nci_info *info = nci_get_drvdata(ndev); 522 struct device *dev = &info->phy->i2c_dev->dev; 523 int r; 524 525 /* Check if the device has VSC */ 526 if (info->fw_vsc_cfg && info->fw_vsc_cfg[0]) { 527 528 /* Set the vendor specific configuration */ 529 r = fdp_nci_set_production_data(ndev, info->fw_vsc_cfg[3], 530 &info->fw_vsc_cfg[4]); 531 if (r) { 532 nfc_err(dev, "Vendor specific config set error %d\n", 533 r); 534 return r; 535 } 536 } 537 538 /* Set clock type and frequency */ 539 r = fdp_nci_set_clock(ndev, info->clock_type, info->clock_freq); 540 if (r) { 541 nfc_err(dev, "Clock set error %d\n", r); 542 return r; 543 } 544 545 /* 546 * In order to apply the VSC FDP needs a reset 547 */ 548 r = nci_core_reset(ndev); 549 if (r) 550 return r; 551 552 /** 553 * The nci core was initialized when post setup was called 554 * so we leave it like that 555 */ 556 return nci_core_init(ndev); 557 } 558 559 static int fdp_nci_core_reset_ntf_packet(struct nci_dev *ndev, 560 struct sk_buff *skb) 561 { 562 struct fdp_nci_info *info = nci_get_drvdata(ndev); 563 564 info->setup_reset_ntf = 1; 565 wake_up(&info->setup_wq); 566 567 return 0; 568 } 569 570 static int fdp_nci_prop_patch_ntf_packet(struct nci_dev *ndev, 571 struct sk_buff *skb) 572 { 573 struct fdp_nci_info *info = nci_get_drvdata(ndev); 574 575 info->setup_patch_ntf = 1; 576 info->setup_patch_status = skb->data[0]; 577 wake_up(&info->setup_wq); 578 579 return 0; 580 } 581 582 static int fdp_nci_prop_patch_rsp_packet(struct nci_dev *ndev, 583 struct sk_buff *skb) 584 { 585 struct fdp_nci_info *info = nci_get_drvdata(ndev); 586 struct device *dev = &info->phy->i2c_dev->dev; 587 u8 status = skb->data[0]; 588 589 dev_dbg(dev, "%s: status 0x%x\n", __func__, status); 590 nci_req_complete(ndev, status); 591 592 return 0; 593 } 594 595 static int fdp_nci_prop_set_production_data_rsp_packet(struct nci_dev *ndev, 596 struct sk_buff *skb) 597 { 598 struct fdp_nci_info *info = nci_get_drvdata(ndev); 599 struct device *dev = &info->phy->i2c_dev->dev; 600 u8 status = skb->data[0]; 601 602 dev_dbg(dev, "%s: status 0x%x\n", __func__, status); 603 nci_req_complete(ndev, status); 604 605 return 0; 606 } 607 608 static int fdp_nci_core_get_config_rsp_packet(struct nci_dev *ndev, 609 struct sk_buff *skb) 610 { 611 struct fdp_nci_info *info = nci_get_drvdata(ndev); 612 struct device *dev = &info->phy->i2c_dev->dev; 613 struct nci_core_get_config_rsp *rsp = (void *) skb->data; 614 u8 i, *p; 615 616 if (rsp->status == NCI_STATUS_OK) { 617 618 p = rsp->data; 619 for (i = 0; i < 4; i++) { 620 621 switch (*p++) { 622 case NCI_PARAM_ID_FW_RAM_VERSION: 623 p++; 624 info->ram_version = le32_to_cpup((__le32 *) p); 625 p += 4; 626 break; 627 case NCI_PARAM_ID_FW_OTP_VERSION: 628 p++; 629 info->otp_version = le32_to_cpup((__le32 *) p); 630 p += 4; 631 break; 632 case NCI_PARAM_ID_OTP_LIMITED_VERSION: 633 p++; 634 info->otp_version = le32_to_cpup((__le32 *) p); 635 p += 4; 636 break; 637 case NCI_PARAM_ID_KEY_INDEX_ID: 638 p++; 639 info->key_index = *p++; 640 } 641 } 642 } 643 644 dev_dbg(dev, "OTP version %d\n", info->otp_version); 645 dev_dbg(dev, "RAM version %d\n", info->ram_version); 646 dev_dbg(dev, "key index %d\n", info->key_index); 647 dev_dbg(dev, "%s: status 0x%x\n", __func__, rsp->status); 648 649 nci_req_complete(ndev, rsp->status); 650 651 return 0; 652 } 653 654 static struct nci_driver_ops fdp_core_ops[] = { 655 { 656 .opcode = NCI_OP_CORE_GET_CONFIG_RSP, 657 .rsp = fdp_nci_core_get_config_rsp_packet, 658 }, 659 { 660 .opcode = NCI_OP_CORE_RESET_NTF, 661 .ntf = fdp_nci_core_reset_ntf_packet, 662 }, 663 }; 664 665 static struct nci_driver_ops fdp_prop_ops[] = { 666 { 667 .opcode = nci_opcode_pack(NCI_GID_PROP, NCI_OP_PROP_PATCH_OID), 668 .rsp = fdp_nci_prop_patch_rsp_packet, 669 .ntf = fdp_nci_prop_patch_ntf_packet, 670 }, 671 { 672 .opcode = nci_opcode_pack(NCI_GID_PROP, 673 NCI_OP_PROP_SET_PDATA_OID), 674 .rsp = fdp_nci_prop_set_production_data_rsp_packet, 675 }, 676 }; 677 678 static struct nci_ops nci_ops = { 679 .open = fdp_nci_open, 680 .close = fdp_nci_close, 681 .send = fdp_nci_send, 682 .setup = fdp_nci_setup, 683 .post_setup = fdp_nci_post_setup, 684 .prop_ops = fdp_prop_ops, 685 .n_prop_ops = ARRAY_SIZE(fdp_prop_ops), 686 .core_ops = fdp_core_ops, 687 .n_core_ops = ARRAY_SIZE(fdp_core_ops), 688 }; 689 690 int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops, 691 struct nci_dev **ndevp, int tx_headroom, 692 int tx_tailroom, u8 clock_type, u32 clock_freq, 693 u8 *fw_vsc_cfg) 694 { 695 struct device *dev = &phy->i2c_dev->dev; 696 struct fdp_nci_info *info; 697 struct nci_dev *ndev; 698 u32 protocols; 699 int r; 700 701 info = devm_kzalloc(dev, sizeof(struct fdp_nci_info), GFP_KERNEL); 702 if (!info) 703 return -ENOMEM; 704 705 info->phy = phy; 706 info->phy_ops = phy_ops; 707 info->clock_type = clock_type; 708 info->clock_freq = clock_freq; 709 info->fw_vsc_cfg = fw_vsc_cfg; 710 711 init_waitqueue_head(&info->setup_wq); 712 713 protocols = NFC_PROTO_JEWEL_MASK | 714 NFC_PROTO_MIFARE_MASK | 715 NFC_PROTO_FELICA_MASK | 716 NFC_PROTO_ISO14443_MASK | 717 NFC_PROTO_ISO14443_B_MASK | 718 NFC_PROTO_NFC_DEP_MASK | 719 NFC_PROTO_ISO15693_MASK; 720 721 ndev = nci_allocate_device(&nci_ops, protocols, tx_headroom, 722 tx_tailroom); 723 if (!ndev) { 724 nfc_err(dev, "Cannot allocate nfc ndev\n"); 725 return -ENOMEM; 726 } 727 728 r = nci_register_device(ndev); 729 if (r) 730 goto err_regdev; 731 732 *ndevp = ndev; 733 info->ndev = ndev; 734 735 nci_set_drvdata(ndev, info); 736 737 return 0; 738 739 err_regdev: 740 nci_free_device(ndev); 741 return r; 742 } 743 EXPORT_SYMBOL(fdp_nci_probe); 744 745 void fdp_nci_remove(struct nci_dev *ndev) 746 { 747 nci_unregister_device(ndev); 748 nci_free_device(ndev); 749 } 750 EXPORT_SYMBOL(fdp_nci_remove); 751 752 MODULE_LICENSE("GPL"); 753 MODULE_DESCRIPTION("NFC NCI driver for Intel Fields Peak NFC controller"); 754 MODULE_AUTHOR("Robert Dolca <robert.dolca@intel.com>"); 755