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 struct device *dev = &info->phy->i2c_dev->dev; 241 242 dev_dbg(dev, "%s\n", __func__); 243 244 return info->phy_ops->enable(info->phy); 245 } 246 247 static int fdp_nci_close(struct nci_dev *ndev) 248 { 249 struct fdp_nci_info *info = nci_get_drvdata(ndev); 250 struct device *dev = &info->phy->i2c_dev->dev; 251 252 dev_dbg(dev, "%s\n", __func__); 253 return 0; 254 } 255 256 static int fdp_nci_send(struct nci_dev *ndev, struct sk_buff *skb) 257 { 258 struct fdp_nci_info *info = nci_get_drvdata(ndev); 259 struct device *dev = &info->phy->i2c_dev->dev; 260 261 dev_dbg(dev, "%s\n", __func__); 262 263 if (atomic_dec_and_test(&info->data_pkt_counter)) 264 info->data_pkt_counter_cb(ndev); 265 266 return info->phy_ops->write(info->phy, skb); 267 } 268 269 int fdp_nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb) 270 { 271 struct fdp_nci_info *info = nci_get_drvdata(ndev); 272 struct device *dev = &info->phy->i2c_dev->dev; 273 274 dev_dbg(dev, "%s\n", __func__); 275 return nci_recv_frame(ndev, skb); 276 } 277 EXPORT_SYMBOL(fdp_nci_recv_frame); 278 279 static int fdp_nci_request_firmware(struct nci_dev *ndev) 280 { 281 struct fdp_nci_info *info = nci_get_drvdata(ndev); 282 struct device *dev = &info->phy->i2c_dev->dev; 283 u8 *data; 284 int r; 285 286 r = request_firmware(&info->ram_patch, FDP_RAM_PATCH_NAME, dev); 287 if (r < 0) { 288 nfc_err(dev, "RAM patch request error\n"); 289 goto error; 290 } 291 292 data = (u8 *) info->ram_patch->data; 293 info->ram_patch_version = 294 data[FDP_FW_HEADER_SIZE] | 295 (data[FDP_FW_HEADER_SIZE + 1] << 8) | 296 (data[FDP_FW_HEADER_SIZE + 2] << 16) | 297 (data[FDP_FW_HEADER_SIZE + 3] << 24); 298 299 dev_dbg(dev, "RAM patch version: %d, size: %d\n", 300 info->ram_patch_version, (int) info->ram_patch->size); 301 302 303 r = request_firmware(&info->otp_patch, FDP_OTP_PATCH_NAME, dev); 304 if (r < 0) { 305 nfc_err(dev, "OTP patch request error\n"); 306 goto out; 307 } 308 309 data = (u8 *) info->otp_patch->data; 310 info->otp_patch_version = 311 data[FDP_FW_HEADER_SIZE] | 312 (data[FDP_FW_HEADER_SIZE + 1] << 8) | 313 (data[FDP_FW_HEADER_SIZE+2] << 16) | 314 (data[FDP_FW_HEADER_SIZE+3] << 24); 315 316 dev_dbg(dev, "OTP patch version: %d, size: %d\n", 317 info->otp_patch_version, (int) info->otp_patch->size); 318 out: 319 return 0; 320 error: 321 return r; 322 } 323 324 static void fdp_nci_release_firmware(struct nci_dev *ndev) 325 { 326 struct fdp_nci_info *info = nci_get_drvdata(ndev); 327 328 if (info->otp_patch) { 329 release_firmware(info->otp_patch); 330 info->otp_patch = NULL; 331 } 332 333 if (info->ram_patch) { 334 release_firmware(info->ram_patch); 335 info->ram_patch = NULL; 336 } 337 } 338 339 static int fdp_nci_patch_otp(struct nci_dev *ndev) 340 { 341 struct fdp_nci_info *info = nci_get_drvdata(ndev); 342 struct device *dev = &info->phy->i2c_dev->dev; 343 int conn_id; 344 int r = 0; 345 346 if (info->otp_version >= info->otp_patch_version) 347 return r; 348 349 info->setup_patch_sent = 0; 350 info->setup_reset_ntf = 0; 351 info->setup_patch_ntf = 0; 352 353 /* Patch init request */ 354 r = fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_OTP); 355 if (r) 356 return r; 357 358 /* Patch data connection creation */ 359 conn_id = fdp_nci_create_conn(ndev); 360 if (conn_id < 0) 361 return conn_id; 362 363 /* Send the patch over the data connection */ 364 r = fdp_nci_send_patch(ndev, conn_id, NCI_PATCH_TYPE_OTP); 365 if (r) 366 return r; 367 368 /* Wait for all the packets to be send over i2c */ 369 wait_event_interruptible(info->setup_wq, 370 info->setup_patch_sent == 1); 371 372 /* make sure that the NFCC processed the last data packet */ 373 msleep(FDP_FW_UPDATE_SLEEP); 374 375 /* Close the data connection */ 376 r = nci_core_conn_close(info->ndev, conn_id); 377 if (r) 378 return r; 379 380 /* Patch finish message */ 381 if (fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_EOT)) { 382 nfc_err(dev, "OTP patch error 0x%x\n", r); 383 return -EINVAL; 384 } 385 386 /* If the patch notification didn't arrive yet, wait for it */ 387 wait_event_interruptible(info->setup_wq, info->setup_patch_ntf); 388 389 /* Check if the patching was successful */ 390 r = info->setup_patch_status; 391 if (r) { 392 nfc_err(dev, "OTP patch error 0x%x\n", r); 393 return -EINVAL; 394 } 395 396 /* 397 * We need to wait for the reset notification before we 398 * can continue 399 */ 400 wait_event_interruptible(info->setup_wq, info->setup_reset_ntf); 401 402 return r; 403 } 404 405 static int fdp_nci_patch_ram(struct nci_dev *ndev) 406 { 407 struct fdp_nci_info *info = nci_get_drvdata(ndev); 408 struct device *dev = &info->phy->i2c_dev->dev; 409 int conn_id; 410 int r = 0; 411 412 if (info->ram_version >= info->ram_patch_version) 413 return r; 414 415 info->setup_patch_sent = 0; 416 info->setup_reset_ntf = 0; 417 info->setup_patch_ntf = 0; 418 419 /* Patch init request */ 420 r = fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_RAM); 421 if (r) 422 return r; 423 424 /* Patch data connection creation */ 425 conn_id = fdp_nci_create_conn(ndev); 426 if (conn_id < 0) 427 return conn_id; 428 429 /* Send the patch over the data connection */ 430 r = fdp_nci_send_patch(ndev, conn_id, NCI_PATCH_TYPE_RAM); 431 if (r) 432 return r; 433 434 /* Wait for all the packets to be send over i2c */ 435 wait_event_interruptible(info->setup_wq, 436 info->setup_patch_sent == 1); 437 438 /* make sure that the NFCC processed the last data packet */ 439 msleep(FDP_FW_UPDATE_SLEEP); 440 441 /* Close the data connection */ 442 r = nci_core_conn_close(info->ndev, conn_id); 443 if (r) 444 return r; 445 446 /* Patch finish message */ 447 if (fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_EOT)) { 448 nfc_err(dev, "RAM patch error 0x%x\n", r); 449 return -EINVAL; 450 } 451 452 /* If the patch notification didn't arrive yet, wait for it */ 453 wait_event_interruptible(info->setup_wq, info->setup_patch_ntf); 454 455 /* Check if the patching was successful */ 456 r = info->setup_patch_status; 457 if (r) { 458 nfc_err(dev, "RAM patch error 0x%x\n", r); 459 return -EINVAL; 460 } 461 462 /* 463 * We need to wait for the reset notification before we 464 * can continue 465 */ 466 wait_event_interruptible(info->setup_wq, info->setup_reset_ntf); 467 468 return r; 469 } 470 471 static int fdp_nci_setup(struct nci_dev *ndev) 472 { 473 /* Format: total length followed by an NCI packet */ 474 struct fdp_nci_info *info = nci_get_drvdata(ndev); 475 struct device *dev = &info->phy->i2c_dev->dev; 476 int r; 477 u8 patched = 0; 478 479 dev_dbg(dev, "%s\n", __func__); 480 481 r = nci_core_init(ndev); 482 if (r) 483 goto error; 484 485 /* Get RAM and OTP version */ 486 r = fdp_nci_get_versions(ndev); 487 if (r) 488 goto error; 489 490 /* Load firmware from disk */ 491 r = fdp_nci_request_firmware(ndev); 492 if (r) 493 goto error; 494 495 /* Update OTP */ 496 if (info->otp_version < info->otp_patch_version) { 497 r = fdp_nci_patch_otp(ndev); 498 if (r) 499 goto error; 500 patched = 1; 501 } 502 503 /* Update RAM */ 504 if (info->ram_version < info->ram_patch_version) { 505 r = fdp_nci_patch_ram(ndev); 506 if (r) 507 goto error; 508 patched = 1; 509 } 510 511 /* Release the firmware buffers */ 512 fdp_nci_release_firmware(ndev); 513 514 /* If a patch was applied the new version is checked */ 515 if (patched) { 516 r = nci_core_init(ndev); 517 if (r) 518 goto error; 519 520 r = fdp_nci_get_versions(ndev); 521 if (r) 522 goto error; 523 524 if (info->otp_version != info->otp_patch_version || 525 info->ram_version != info->ram_patch_version) { 526 nfc_err(dev, "Firmware update failed"); 527 r = -EINVAL; 528 goto error; 529 } 530 } 531 532 /* 533 * We initialized the devices but the NFC subsystem expects 534 * it to not be initialized. 535 */ 536 return nci_core_reset(ndev); 537 538 error: 539 fdp_nci_release_firmware(ndev); 540 nfc_err(dev, "Setup error %d\n", r); 541 return r; 542 } 543 544 static int fdp_nci_post_setup(struct nci_dev *ndev) 545 { 546 struct fdp_nci_info *info = nci_get_drvdata(ndev); 547 struct device *dev = &info->phy->i2c_dev->dev; 548 int r; 549 550 /* Check if the device has VSC */ 551 if (info->fw_vsc_cfg && info->fw_vsc_cfg[0]) { 552 553 /* Set the vendor specific configuration */ 554 r = fdp_nci_set_production_data(ndev, info->fw_vsc_cfg[3], 555 &info->fw_vsc_cfg[4]); 556 if (r) { 557 nfc_err(dev, "Vendor specific config set error %d\n", 558 r); 559 return r; 560 } 561 } 562 563 /* Set clock type and frequency */ 564 r = fdp_nci_set_clock(ndev, info->clock_type, info->clock_freq); 565 if (r) { 566 nfc_err(dev, "Clock set error %d\n", r); 567 return r; 568 } 569 570 /* 571 * In order to apply the VSC FDP needs a reset 572 */ 573 r = nci_core_reset(ndev); 574 if (r) 575 return r; 576 577 /** 578 * The nci core was initialized when post setup was called 579 * so we leave it like that 580 */ 581 return nci_core_init(ndev); 582 } 583 584 static int fdp_nci_core_reset_ntf_packet(struct nci_dev *ndev, 585 struct sk_buff *skb) 586 { 587 struct fdp_nci_info *info = nci_get_drvdata(ndev); 588 struct device *dev = &info->phy->i2c_dev->dev; 589 590 dev_dbg(dev, "%s\n", __func__); 591 info->setup_reset_ntf = 1; 592 wake_up(&info->setup_wq); 593 594 return 0; 595 } 596 597 static int fdp_nci_prop_patch_ntf_packet(struct nci_dev *ndev, 598 struct sk_buff *skb) 599 { 600 struct fdp_nci_info *info = nci_get_drvdata(ndev); 601 struct device *dev = &info->phy->i2c_dev->dev; 602 603 dev_dbg(dev, "%s\n", __func__); 604 info->setup_patch_ntf = 1; 605 info->setup_patch_status = skb->data[0]; 606 wake_up(&info->setup_wq); 607 608 return 0; 609 } 610 611 static int fdp_nci_prop_patch_rsp_packet(struct nci_dev *ndev, 612 struct sk_buff *skb) 613 { 614 struct fdp_nci_info *info = nci_get_drvdata(ndev); 615 struct device *dev = &info->phy->i2c_dev->dev; 616 u8 status = skb->data[0]; 617 618 dev_dbg(dev, "%s: status 0x%x\n", __func__, status); 619 nci_req_complete(ndev, status); 620 621 return 0; 622 } 623 624 static int fdp_nci_prop_set_production_data_rsp_packet(struct nci_dev *ndev, 625 struct sk_buff *skb) 626 { 627 struct fdp_nci_info *info = nci_get_drvdata(ndev); 628 struct device *dev = &info->phy->i2c_dev->dev; 629 u8 status = skb->data[0]; 630 631 dev_dbg(dev, "%s: status 0x%x\n", __func__, status); 632 nci_req_complete(ndev, status); 633 634 return 0; 635 } 636 637 static int fdp_nci_core_get_config_rsp_packet(struct nci_dev *ndev, 638 struct sk_buff *skb) 639 { 640 struct fdp_nci_info *info = nci_get_drvdata(ndev); 641 struct device *dev = &info->phy->i2c_dev->dev; 642 struct nci_core_get_config_rsp *rsp = (void *) skb->data; 643 u8 i, *p; 644 645 if (rsp->status == NCI_STATUS_OK) { 646 647 p = rsp->data; 648 for (i = 0; i < 4; i++) { 649 650 switch (*p++) { 651 case NCI_PARAM_ID_FW_RAM_VERSION: 652 p++; 653 info->ram_version = le32_to_cpup((__le32 *) p); 654 p += 4; 655 break; 656 case NCI_PARAM_ID_FW_OTP_VERSION: 657 p++; 658 info->otp_version = le32_to_cpup((__le32 *) p); 659 p += 4; 660 break; 661 case NCI_PARAM_ID_OTP_LIMITED_VERSION: 662 p++; 663 info->otp_version = le32_to_cpup((__le32 *) p); 664 p += 4; 665 break; 666 case NCI_PARAM_ID_KEY_INDEX_ID: 667 p++; 668 info->key_index = *p++; 669 } 670 } 671 } 672 673 dev_dbg(dev, "OTP version %d\n", info->otp_version); 674 dev_dbg(dev, "RAM version %d\n", info->ram_version); 675 dev_dbg(dev, "key index %d\n", info->key_index); 676 dev_dbg(dev, "%s: status 0x%x\n", __func__, rsp->status); 677 678 nci_req_complete(ndev, rsp->status); 679 680 return 0; 681 } 682 683 static struct nci_driver_ops fdp_core_ops[] = { 684 { 685 .opcode = NCI_OP_CORE_GET_CONFIG_RSP, 686 .rsp = fdp_nci_core_get_config_rsp_packet, 687 }, 688 { 689 .opcode = NCI_OP_CORE_RESET_NTF, 690 .ntf = fdp_nci_core_reset_ntf_packet, 691 }, 692 }; 693 694 static struct nci_driver_ops fdp_prop_ops[] = { 695 { 696 .opcode = nci_opcode_pack(NCI_GID_PROP, NCI_OP_PROP_PATCH_OID), 697 .rsp = fdp_nci_prop_patch_rsp_packet, 698 .ntf = fdp_nci_prop_patch_ntf_packet, 699 }, 700 { 701 .opcode = nci_opcode_pack(NCI_GID_PROP, 702 NCI_OP_PROP_SET_PDATA_OID), 703 .rsp = fdp_nci_prop_set_production_data_rsp_packet, 704 }, 705 }; 706 707 static struct nci_ops nci_ops = { 708 .open = fdp_nci_open, 709 .close = fdp_nci_close, 710 .send = fdp_nci_send, 711 .setup = fdp_nci_setup, 712 .post_setup = fdp_nci_post_setup, 713 .prop_ops = fdp_prop_ops, 714 .n_prop_ops = ARRAY_SIZE(fdp_prop_ops), 715 .core_ops = fdp_core_ops, 716 .n_core_ops = ARRAY_SIZE(fdp_core_ops), 717 }; 718 719 int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops, 720 struct nci_dev **ndevp, int tx_headroom, 721 int tx_tailroom, u8 clock_type, u32 clock_freq, 722 u8 *fw_vsc_cfg) 723 { 724 struct device *dev = &phy->i2c_dev->dev; 725 struct fdp_nci_info *info; 726 struct nci_dev *ndev; 727 u32 protocols; 728 int r; 729 730 info = devm_kzalloc(dev, sizeof(struct fdp_nci_info), GFP_KERNEL); 731 if (!info) 732 return -ENOMEM; 733 734 info->phy = phy; 735 info->phy_ops = phy_ops; 736 info->clock_type = clock_type; 737 info->clock_freq = clock_freq; 738 info->fw_vsc_cfg = fw_vsc_cfg; 739 740 init_waitqueue_head(&info->setup_wq); 741 742 protocols = NFC_PROTO_JEWEL_MASK | 743 NFC_PROTO_MIFARE_MASK | 744 NFC_PROTO_FELICA_MASK | 745 NFC_PROTO_ISO14443_MASK | 746 NFC_PROTO_ISO14443_B_MASK | 747 NFC_PROTO_NFC_DEP_MASK | 748 NFC_PROTO_ISO15693_MASK; 749 750 ndev = nci_allocate_device(&nci_ops, protocols, tx_headroom, 751 tx_tailroom); 752 if (!ndev) { 753 nfc_err(dev, "Cannot allocate nfc ndev\n"); 754 return -ENOMEM; 755 } 756 757 r = nci_register_device(ndev); 758 if (r) 759 goto err_regdev; 760 761 *ndevp = ndev; 762 info->ndev = ndev; 763 764 nci_set_drvdata(ndev, info); 765 766 return 0; 767 768 err_regdev: 769 nci_free_device(ndev); 770 return r; 771 } 772 EXPORT_SYMBOL(fdp_nci_probe); 773 774 void fdp_nci_remove(struct nci_dev *ndev) 775 { 776 struct fdp_nci_info *info = nci_get_drvdata(ndev); 777 struct device *dev = &info->phy->i2c_dev->dev; 778 779 dev_dbg(dev, "%s\n", __func__); 780 781 nci_unregister_device(ndev); 782 nci_free_device(ndev); 783 } 784 EXPORT_SYMBOL(fdp_nci_remove); 785 786 MODULE_LICENSE("GPL"); 787 MODULE_DESCRIPTION("NFC NCI driver for Intel Fields Peak NFC controller"); 788 MODULE_AUTHOR("Robert Dolca <robert.dolca@intel.com>"); 789