1 /* ------------------------------------------------------------------------- 2 * Copyright (C) 2014-2016, Intel Corporation 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * ------------------------------------------------------------------------- 14 */ 15 16 #include <linux/module.h> 17 #include <linux/nfc.h> 18 #include <linux/i2c.h> 19 #include <linux/delay.h> 20 #include <linux/firmware.h> 21 #include <net/nfc/nci_core.h> 22 23 #include "fdp.h" 24 25 #define FDP_OTP_PATCH_NAME "otp.bin" 26 #define FDP_RAM_PATCH_NAME "ram.bin" 27 #define FDP_FW_HEADER_SIZE 576 28 #define FDP_FW_UPDATE_SLEEP 1000 29 30 #define NCI_GET_VERSION_TIMEOUT 8000 31 #define NCI_PATCH_REQUEST_TIMEOUT 8000 32 #define FDP_PATCH_CONN_DEST 0xC2 33 #define FDP_PATCH_CONN_PARAM_TYPE 0xA0 34 35 #define NCI_PATCH_TYPE_RAM 0x00 36 #define NCI_PATCH_TYPE_OTP 0x01 37 #define NCI_PATCH_TYPE_EOT 0xFF 38 39 #define NCI_PARAM_ID_FW_RAM_VERSION 0xA0 40 #define NCI_PARAM_ID_FW_OTP_VERSION 0xA1 41 #define NCI_PARAM_ID_OTP_LIMITED_VERSION 0xC5 42 #define NCI_PARAM_ID_KEY_INDEX_ID 0xC6 43 44 #define NCI_GID_PROP 0x0F 45 #define NCI_OP_PROP_PATCH_OID 0x08 46 #define NCI_OP_PROP_SET_PDATA_OID 0x23 47 48 struct fdp_nci_info { 49 struct nfc_phy_ops *phy_ops; 50 struct fdp_i2c_phy *phy; 51 struct nci_dev *ndev; 52 53 const struct firmware *otp_patch; 54 const struct firmware *ram_patch; 55 u32 otp_patch_version; 56 u32 ram_patch_version; 57 58 u32 otp_version; 59 u32 ram_version; 60 u32 limited_otp_version; 61 u8 key_index; 62 63 u8 *fw_vsc_cfg; 64 u8 clock_type; 65 u32 clock_freq; 66 67 atomic_t data_pkt_counter; 68 void (*data_pkt_counter_cb)(struct nci_dev *ndev); 69 u8 setup_patch_sent; 70 u8 setup_patch_ntf; 71 u8 setup_patch_status; 72 u8 setup_reset_ntf; 73 wait_queue_head_t setup_wq; 74 }; 75 76 static u8 nci_core_get_config_otp_ram_version[5] = { 77 0x04, 78 NCI_PARAM_ID_FW_RAM_VERSION, 79 NCI_PARAM_ID_FW_OTP_VERSION, 80 NCI_PARAM_ID_OTP_LIMITED_VERSION, 81 NCI_PARAM_ID_KEY_INDEX_ID 82 }; 83 84 struct nci_core_get_config_rsp { 85 u8 status; 86 u8 count; 87 u8 data[0]; 88 }; 89 90 static int fdp_nci_create_conn(struct nci_dev *ndev) 91 { 92 struct fdp_nci_info *info = nci_get_drvdata(ndev); 93 struct core_conn_create_dest_spec_params param; 94 int r; 95 96 /* proprietary destination specific paramerer without value */ 97 param.type = FDP_PATCH_CONN_PARAM_TYPE; 98 param.length = 0x00; 99 100 r = nci_core_conn_create(info->ndev, FDP_PATCH_CONN_DEST, 1, 101 sizeof(param), ¶m); 102 if (r) 103 return r; 104 105 return nci_get_conn_info_by_dest_type_params(ndev, 106 FDP_PATCH_CONN_DEST, NULL); 107 } 108 109 static inline int fdp_nci_get_versions(struct nci_dev *ndev) 110 { 111 return nci_core_cmd(ndev, NCI_OP_CORE_GET_CONFIG_CMD, 112 sizeof(nci_core_get_config_otp_ram_version), 113 (__u8 *) &nci_core_get_config_otp_ram_version); 114 } 115 116 static inline int fdp_nci_patch_cmd(struct nci_dev *ndev, u8 type) 117 { 118 return nci_prop_cmd(ndev, NCI_OP_PROP_PATCH_OID, sizeof(type), &type); 119 } 120 121 static inline int fdp_nci_set_production_data(struct nci_dev *ndev, u8 len, 122 char *data) 123 { 124 return nci_prop_cmd(ndev, NCI_OP_PROP_SET_PDATA_OID, len, data); 125 } 126 127 static int fdp_nci_set_clock(struct nci_dev *ndev, u8 clock_type, 128 u32 clock_freq) 129 { 130 u32 fc = 13560; 131 u32 nd, num, delta; 132 char data[9]; 133 134 nd = (24 * fc) / clock_freq; 135 delta = 24 * fc - nd * clock_freq; 136 num = (32768 * delta) / clock_freq; 137 138 data[0] = 0x00; 139 data[1] = 0x00; 140 data[2] = 0x00; 141 142 data[3] = 0x10; 143 data[4] = 0x04; 144 data[5] = num & 0xFF; 145 data[6] = (num >> 8) & 0xff; 146 data[7] = nd; 147 data[8] = clock_type; 148 149 return fdp_nci_set_production_data(ndev, 9, data); 150 } 151 152 static void fdp_nci_send_patch_cb(struct nci_dev *ndev) 153 { 154 struct fdp_nci_info *info = nci_get_drvdata(ndev); 155 156 info->setup_patch_sent = 1; 157 wake_up(&info->setup_wq); 158 } 159 160 /** 161 * Register a packet sent counter and a callback 162 * 163 * We have no other way of knowing when all firmware packets were sent out 164 * on the i2c bus. We need to know that in order to close the connection and 165 * send the patch end message. 166 */ 167 static void fdp_nci_set_data_pkt_counter(struct nci_dev *ndev, 168 void (*cb)(struct nci_dev *ndev), int count) 169 { 170 struct fdp_nci_info *info = nci_get_drvdata(ndev); 171 struct device *dev = &info->phy->i2c_dev->dev; 172 173 dev_dbg(dev, "NCI data pkt counter %d\n", count); 174 atomic_set(&info->data_pkt_counter, count); 175 info->data_pkt_counter_cb = cb; 176 } 177 178 /** 179 * The device is expecting a stream of packets. All packets need to 180 * have the PBF flag set to 0x0 (last packet) even if the firmware 181 * file is segmented and there are multiple packets. If we give the 182 * whole firmware to nci_send_data it will segment it and it will set 183 * the PBF flag to 0x01 so we need to do the segmentation here. 184 * 185 * The firmware will be analyzed and applied when we send NCI_OP_PROP_PATCH_CMD 186 * command with NCI_PATCH_TYPE_EOT parameter. The device will send a 187 * NFCC_PATCH_NTF packaet and a NCI_OP_CORE_RESET_NTF packet. 188 */ 189 static int fdp_nci_send_patch(struct nci_dev *ndev, u8 conn_id, u8 type) 190 { 191 struct fdp_nci_info *info = nci_get_drvdata(ndev); 192 const struct firmware *fw; 193 struct sk_buff *skb; 194 unsigned long len; 195 u8 max_size, payload_size; 196 int rc = 0; 197 198 if ((type == NCI_PATCH_TYPE_OTP && !info->otp_patch) || 199 (type == NCI_PATCH_TYPE_RAM && !info->ram_patch)) 200 return -EINVAL; 201 202 if (type == NCI_PATCH_TYPE_OTP) 203 fw = info->otp_patch; 204 else 205 fw = info->ram_patch; 206 207 max_size = nci_conn_max_data_pkt_payload_size(ndev, conn_id); 208 if (max_size <= 0) 209 return -EINVAL; 210 211 len = fw->size; 212 213 fdp_nci_set_data_pkt_counter(ndev, fdp_nci_send_patch_cb, 214 DIV_ROUND_UP(fw->size, max_size)); 215 216 while (len) { 217 218 payload_size = min_t(unsigned long, (unsigned long) max_size, 219 len); 220 221 skb = nci_skb_alloc(ndev, (NCI_CTRL_HDR_SIZE + payload_size), 222 GFP_KERNEL); 223 if (!skb) { 224 fdp_nci_set_data_pkt_counter(ndev, NULL, 0); 225 return -ENOMEM; 226 } 227 228 229 skb_reserve(skb, NCI_CTRL_HDR_SIZE); 230 231 skb_put_data(skb, fw->data + (fw->size - len), payload_size); 232 233 rc = nci_send_data(ndev, conn_id, skb); 234 235 if (rc) { 236 fdp_nci_set_data_pkt_counter(ndev, NULL, 0); 237 return rc; 238 } 239 240 len -= payload_size; 241 } 242 243 return rc; 244 } 245 246 static int fdp_nci_open(struct nci_dev *ndev) 247 { 248 int r; 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__); 253 254 r = info->phy_ops->enable(info->phy); 255 256 return r; 257 } 258 259 static int fdp_nci_close(struct nci_dev *ndev) 260 { 261 struct fdp_nci_info *info = nci_get_drvdata(ndev); 262 struct device *dev = &info->phy->i2c_dev->dev; 263 264 dev_dbg(dev, "%s\n", __func__); 265 return 0; 266 } 267 268 static int fdp_nci_send(struct nci_dev *ndev, struct sk_buff *skb) 269 { 270 struct fdp_nci_info *info = nci_get_drvdata(ndev); 271 struct device *dev = &info->phy->i2c_dev->dev; 272 273 dev_dbg(dev, "%s\n", __func__); 274 275 if (atomic_dec_and_test(&info->data_pkt_counter)) 276 info->data_pkt_counter_cb(ndev); 277 278 return info->phy_ops->write(info->phy, skb); 279 } 280 281 int fdp_nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb) 282 { 283 struct fdp_nci_info *info = nci_get_drvdata(ndev); 284 struct device *dev = &info->phy->i2c_dev->dev; 285 286 dev_dbg(dev, "%s\n", __func__); 287 return nci_recv_frame(ndev, skb); 288 } 289 EXPORT_SYMBOL(fdp_nci_recv_frame); 290 291 static int fdp_nci_request_firmware(struct nci_dev *ndev) 292 { 293 struct fdp_nci_info *info = nci_get_drvdata(ndev); 294 struct device *dev = &info->phy->i2c_dev->dev; 295 u8 *data; 296 int r; 297 298 r = request_firmware(&info->ram_patch, FDP_RAM_PATCH_NAME, dev); 299 if (r < 0) { 300 nfc_err(dev, "RAM patch request error\n"); 301 goto error; 302 } 303 304 data = (u8 *) info->ram_patch->data; 305 info->ram_patch_version = 306 data[FDP_FW_HEADER_SIZE] | 307 (data[FDP_FW_HEADER_SIZE + 1] << 8) | 308 (data[FDP_FW_HEADER_SIZE + 2] << 16) | 309 (data[FDP_FW_HEADER_SIZE + 3] << 24); 310 311 dev_dbg(dev, "RAM patch version: %d, size: %d\n", 312 info->ram_patch_version, (int) info->ram_patch->size); 313 314 315 r = request_firmware(&info->otp_patch, FDP_OTP_PATCH_NAME, dev); 316 if (r < 0) { 317 nfc_err(dev, "OTP patch request error\n"); 318 goto out; 319 } 320 321 data = (u8 *) info->otp_patch->data; 322 info->otp_patch_version = 323 data[FDP_FW_HEADER_SIZE] | 324 (data[FDP_FW_HEADER_SIZE + 1] << 8) | 325 (data[FDP_FW_HEADER_SIZE+2] << 16) | 326 (data[FDP_FW_HEADER_SIZE+3] << 24); 327 328 dev_dbg(dev, "OTP patch version: %d, size: %d\n", 329 info->otp_patch_version, (int) info->otp_patch->size); 330 out: 331 return 0; 332 error: 333 return r; 334 } 335 336 static void fdp_nci_release_firmware(struct nci_dev *ndev) 337 { 338 struct fdp_nci_info *info = nci_get_drvdata(ndev); 339 340 if (info->otp_patch) { 341 release_firmware(info->otp_patch); 342 info->otp_patch = NULL; 343 } 344 345 if (info->ram_patch) { 346 release_firmware(info->ram_patch); 347 info->ram_patch = NULL; 348 } 349 } 350 351 static int fdp_nci_patch_otp(struct nci_dev *ndev) 352 { 353 struct fdp_nci_info *info = nci_get_drvdata(ndev); 354 struct device *dev = &info->phy->i2c_dev->dev; 355 int conn_id; 356 int r = 0; 357 358 if (info->otp_version >= info->otp_patch_version) 359 goto out; 360 361 info->setup_patch_sent = 0; 362 info->setup_reset_ntf = 0; 363 info->setup_patch_ntf = 0; 364 365 /* Patch init request */ 366 r = fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_OTP); 367 if (r) 368 goto out; 369 370 /* Patch data connection creation */ 371 conn_id = fdp_nci_create_conn(ndev); 372 if (conn_id < 0) { 373 r = conn_id; 374 goto out; 375 } 376 377 /* Send the patch over the data connection */ 378 r = fdp_nci_send_patch(ndev, conn_id, NCI_PATCH_TYPE_OTP); 379 if (r) 380 goto out; 381 382 /* Wait for all the packets to be send over i2c */ 383 wait_event_interruptible(info->setup_wq, 384 info->setup_patch_sent == 1); 385 386 /* make sure that the NFCC processed the last data packet */ 387 msleep(FDP_FW_UPDATE_SLEEP); 388 389 /* Close the data connection */ 390 r = nci_core_conn_close(info->ndev, conn_id); 391 if (r) 392 goto out; 393 394 /* Patch finish message */ 395 if (fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_EOT)) { 396 nfc_err(dev, "OTP patch error 0x%x\n", r); 397 r = -EINVAL; 398 goto out; 399 } 400 401 /* If the patch notification didn't arrive yet, wait for it */ 402 wait_event_interruptible(info->setup_wq, info->setup_patch_ntf); 403 404 /* Check if the patching was successful */ 405 r = info->setup_patch_status; 406 if (r) { 407 nfc_err(dev, "OTP patch error 0x%x\n", r); 408 r = -EINVAL; 409 goto out; 410 } 411 412 /* 413 * We need to wait for the reset notification before we 414 * can continue 415 */ 416 wait_event_interruptible(info->setup_wq, info->setup_reset_ntf); 417 418 out: 419 return r; 420 } 421 422 static int fdp_nci_patch_ram(struct nci_dev *ndev) 423 { 424 struct fdp_nci_info *info = nci_get_drvdata(ndev); 425 struct device *dev = &info->phy->i2c_dev->dev; 426 int conn_id; 427 int r = 0; 428 429 if (info->ram_version >= info->ram_patch_version) 430 goto out; 431 432 info->setup_patch_sent = 0; 433 info->setup_reset_ntf = 0; 434 info->setup_patch_ntf = 0; 435 436 /* Patch init request */ 437 r = fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_RAM); 438 if (r) 439 goto out; 440 441 /* Patch data connection creation */ 442 conn_id = fdp_nci_create_conn(ndev); 443 if (conn_id < 0) { 444 r = conn_id; 445 goto out; 446 } 447 448 /* Send the patch over the data connection */ 449 r = fdp_nci_send_patch(ndev, conn_id, NCI_PATCH_TYPE_RAM); 450 if (r) 451 goto out; 452 453 /* Wait for all the packets to be send over i2c */ 454 wait_event_interruptible(info->setup_wq, 455 info->setup_patch_sent == 1); 456 457 /* make sure that the NFCC processed the last data packet */ 458 msleep(FDP_FW_UPDATE_SLEEP); 459 460 /* Close the data connection */ 461 r = nci_core_conn_close(info->ndev, conn_id); 462 if (r) 463 goto out; 464 465 /* Patch finish message */ 466 if (fdp_nci_patch_cmd(ndev, NCI_PATCH_TYPE_EOT)) { 467 nfc_err(dev, "RAM patch error 0x%x\n", r); 468 r = -EINVAL; 469 goto out; 470 } 471 472 /* If the patch notification didn't arrive yet, wait for it */ 473 wait_event_interruptible(info->setup_wq, info->setup_patch_ntf); 474 475 /* Check if the patching was successful */ 476 r = info->setup_patch_status; 477 if (r) { 478 nfc_err(dev, "RAM patch error 0x%x\n", r); 479 r = -EINVAL; 480 goto out; 481 } 482 483 /* 484 * We need to wait for the reset notification before we 485 * can continue 486 */ 487 wait_event_interruptible(info->setup_wq, info->setup_reset_ntf); 488 489 out: 490 return r; 491 } 492 493 static int fdp_nci_setup(struct nci_dev *ndev) 494 { 495 /* Format: total length followed by an NCI packet */ 496 struct fdp_nci_info *info = nci_get_drvdata(ndev); 497 struct device *dev = &info->phy->i2c_dev->dev; 498 int r; 499 u8 patched = 0; 500 501 dev_dbg(dev, "%s\n", __func__); 502 503 r = nci_core_init(ndev); 504 if (r) 505 goto error; 506 507 /* Get RAM and OTP version */ 508 r = fdp_nci_get_versions(ndev); 509 if (r) 510 goto error; 511 512 /* Load firmware from disk */ 513 r = fdp_nci_request_firmware(ndev); 514 if (r) 515 goto error; 516 517 /* Update OTP */ 518 if (info->otp_version < info->otp_patch_version) { 519 r = fdp_nci_patch_otp(ndev); 520 if (r) 521 goto error; 522 patched = 1; 523 } 524 525 /* Update RAM */ 526 if (info->ram_version < info->ram_patch_version) { 527 r = fdp_nci_patch_ram(ndev); 528 if (r) 529 goto error; 530 patched = 1; 531 } 532 533 /* Release the firmware buffers */ 534 fdp_nci_release_firmware(ndev); 535 536 /* If a patch was applied the new version is checked */ 537 if (patched) { 538 r = nci_core_init(ndev); 539 if (r) 540 goto error; 541 542 r = fdp_nci_get_versions(ndev); 543 if (r) 544 goto error; 545 546 if (info->otp_version != info->otp_patch_version || 547 info->ram_version != info->ram_patch_version) { 548 nfc_err(dev, "Firmware update failed"); 549 r = -EINVAL; 550 goto error; 551 } 552 } 553 554 /* 555 * We initialized the devices but the NFC subsystem expects 556 * it to not be initialized. 557 */ 558 return nci_core_reset(ndev); 559 560 error: 561 fdp_nci_release_firmware(ndev); 562 nfc_err(dev, "Setup error %d\n", r); 563 return r; 564 } 565 566 static int fdp_nci_post_setup(struct nci_dev *ndev) 567 { 568 struct fdp_nci_info *info = nci_get_drvdata(ndev); 569 struct device *dev = &info->phy->i2c_dev->dev; 570 int r; 571 572 /* Check if the device has VSC */ 573 if (info->fw_vsc_cfg && info->fw_vsc_cfg[0]) { 574 575 /* Set the vendor specific configuration */ 576 r = fdp_nci_set_production_data(ndev, info->fw_vsc_cfg[3], 577 &info->fw_vsc_cfg[4]); 578 if (r) { 579 nfc_err(dev, "Vendor specific config set error %d\n", 580 r); 581 return r; 582 } 583 } 584 585 /* Set clock type and frequency */ 586 r = fdp_nci_set_clock(ndev, info->clock_type, info->clock_freq); 587 if (r) { 588 nfc_err(dev, "Clock set error %d\n", r); 589 return r; 590 } 591 592 /* 593 * In order to apply the VSC FDP needs a reset 594 */ 595 r = nci_core_reset(ndev); 596 if (r) 597 return r; 598 599 /** 600 * The nci core was initialized when post setup was called 601 * so we leave it like that 602 */ 603 return nci_core_init(ndev); 604 } 605 606 static int fdp_nci_core_reset_ntf_packet(struct nci_dev *ndev, 607 struct sk_buff *skb) 608 { 609 struct fdp_nci_info *info = nci_get_drvdata(ndev); 610 struct device *dev = &info->phy->i2c_dev->dev; 611 612 dev_dbg(dev, "%s\n", __func__); 613 info->setup_reset_ntf = 1; 614 wake_up(&info->setup_wq); 615 616 return 0; 617 } 618 619 static int fdp_nci_prop_patch_ntf_packet(struct nci_dev *ndev, 620 struct sk_buff *skb) 621 { 622 struct fdp_nci_info *info = nci_get_drvdata(ndev); 623 struct device *dev = &info->phy->i2c_dev->dev; 624 625 dev_dbg(dev, "%s\n", __func__); 626 info->setup_patch_ntf = 1; 627 info->setup_patch_status = skb->data[0]; 628 wake_up(&info->setup_wq); 629 630 return 0; 631 } 632 633 static int fdp_nci_prop_patch_rsp_packet(struct nci_dev *ndev, 634 struct sk_buff *skb) 635 { 636 struct fdp_nci_info *info = nci_get_drvdata(ndev); 637 struct device *dev = &info->phy->i2c_dev->dev; 638 u8 status = skb->data[0]; 639 640 dev_dbg(dev, "%s: status 0x%x\n", __func__, status); 641 nci_req_complete(ndev, status); 642 643 return 0; 644 } 645 646 static int fdp_nci_prop_set_production_data_rsp_packet(struct nci_dev *ndev, 647 struct sk_buff *skb) 648 { 649 struct fdp_nci_info *info = nci_get_drvdata(ndev); 650 struct device *dev = &info->phy->i2c_dev->dev; 651 u8 status = skb->data[0]; 652 653 dev_dbg(dev, "%s: status 0x%x\n", __func__, status); 654 nci_req_complete(ndev, status); 655 656 return 0; 657 } 658 659 static int fdp_nci_core_get_config_rsp_packet(struct nci_dev *ndev, 660 struct sk_buff *skb) 661 { 662 struct fdp_nci_info *info = nci_get_drvdata(ndev); 663 struct device *dev = &info->phy->i2c_dev->dev; 664 struct nci_core_get_config_rsp *rsp = (void *) skb->data; 665 u8 i, *p; 666 667 if (rsp->status == NCI_STATUS_OK) { 668 669 p = rsp->data; 670 for (i = 0; i < 4; i++) { 671 672 switch (*p++) { 673 case NCI_PARAM_ID_FW_RAM_VERSION: 674 p++; 675 info->ram_version = le32_to_cpup((__le32 *) p); 676 p += 4; 677 break; 678 case NCI_PARAM_ID_FW_OTP_VERSION: 679 p++; 680 info->otp_version = le32_to_cpup((__le32 *) p); 681 p += 4; 682 break; 683 case NCI_PARAM_ID_OTP_LIMITED_VERSION: 684 p++; 685 info->otp_version = le32_to_cpup((__le32 *) p); 686 p += 4; 687 break; 688 case NCI_PARAM_ID_KEY_INDEX_ID: 689 p++; 690 info->key_index = *p++; 691 } 692 } 693 } 694 695 dev_dbg(dev, "OTP version %d\n", info->otp_version); 696 dev_dbg(dev, "RAM version %d\n", info->ram_version); 697 dev_dbg(dev, "key index %d\n", info->key_index); 698 dev_dbg(dev, "%s: status 0x%x\n", __func__, rsp->status); 699 700 nci_req_complete(ndev, rsp->status); 701 702 return 0; 703 } 704 705 static struct nci_driver_ops fdp_core_ops[] = { 706 { 707 .opcode = NCI_OP_CORE_GET_CONFIG_RSP, 708 .rsp = fdp_nci_core_get_config_rsp_packet, 709 }, 710 { 711 .opcode = NCI_OP_CORE_RESET_NTF, 712 .ntf = fdp_nci_core_reset_ntf_packet, 713 }, 714 }; 715 716 static struct nci_driver_ops fdp_prop_ops[] = { 717 { 718 .opcode = nci_opcode_pack(NCI_GID_PROP, NCI_OP_PROP_PATCH_OID), 719 .rsp = fdp_nci_prop_patch_rsp_packet, 720 .ntf = fdp_nci_prop_patch_ntf_packet, 721 }, 722 { 723 .opcode = nci_opcode_pack(NCI_GID_PROP, 724 NCI_OP_PROP_SET_PDATA_OID), 725 .rsp = fdp_nci_prop_set_production_data_rsp_packet, 726 }, 727 }; 728 729 struct nci_ops nci_ops = { 730 .open = fdp_nci_open, 731 .close = fdp_nci_close, 732 .send = fdp_nci_send, 733 .setup = fdp_nci_setup, 734 .post_setup = fdp_nci_post_setup, 735 .prop_ops = fdp_prop_ops, 736 .n_prop_ops = ARRAY_SIZE(fdp_prop_ops), 737 .core_ops = fdp_core_ops, 738 .n_core_ops = ARRAY_SIZE(fdp_core_ops), 739 }; 740 741 int fdp_nci_probe(struct fdp_i2c_phy *phy, struct nfc_phy_ops *phy_ops, 742 struct nci_dev **ndevp, int tx_headroom, 743 int tx_tailroom, u8 clock_type, u32 clock_freq, 744 u8 *fw_vsc_cfg) 745 { 746 struct device *dev = &phy->i2c_dev->dev; 747 struct fdp_nci_info *info; 748 struct nci_dev *ndev; 749 u32 protocols; 750 int r; 751 752 info = devm_kzalloc(dev, sizeof(struct fdp_nci_info), GFP_KERNEL); 753 if (!info) 754 return -ENOMEM; 755 756 info->phy = phy; 757 info->phy_ops = phy_ops; 758 info->clock_type = clock_type; 759 info->clock_freq = clock_freq; 760 info->fw_vsc_cfg = fw_vsc_cfg; 761 762 init_waitqueue_head(&info->setup_wq); 763 764 protocols = NFC_PROTO_JEWEL_MASK | 765 NFC_PROTO_MIFARE_MASK | 766 NFC_PROTO_FELICA_MASK | 767 NFC_PROTO_ISO14443_MASK | 768 NFC_PROTO_ISO14443_B_MASK | 769 NFC_PROTO_NFC_DEP_MASK | 770 NFC_PROTO_ISO15693_MASK; 771 772 ndev = nci_allocate_device(&nci_ops, protocols, tx_headroom, 773 tx_tailroom); 774 if (!ndev) { 775 nfc_err(dev, "Cannot allocate nfc ndev\n"); 776 return -ENOMEM; 777 } 778 779 r = nci_register_device(ndev); 780 if (r) 781 goto err_regdev; 782 783 *ndevp = ndev; 784 info->ndev = ndev; 785 786 nci_set_drvdata(ndev, info); 787 788 return 0; 789 790 err_regdev: 791 nci_free_device(ndev); 792 return r; 793 } 794 EXPORT_SYMBOL(fdp_nci_probe); 795 796 void fdp_nci_remove(struct nci_dev *ndev) 797 { 798 struct fdp_nci_info *info = nci_get_drvdata(ndev); 799 struct device *dev = &info->phy->i2c_dev->dev; 800 801 dev_dbg(dev, "%s\n", __func__); 802 803 nci_unregister_device(ndev); 804 nci_free_device(ndev); 805 } 806 EXPORT_SYMBOL(fdp_nci_remove); 807 808 MODULE_LICENSE("GPL"); 809 MODULE_DESCRIPTION("NFC NCI driver for Intel Fields Peak NFC controller"); 810 MODULE_AUTHOR("Robert Dolca <robert.dolca@intel.com>"); 811