1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Bluetooth supports for Qualcomm Atheros chips 4 * 5 * Copyright (c) 2015 The Linux Foundation. All rights reserved. 6 */ 7 #include <linux/module.h> 8 #include <linux/firmware.h> 9 #include <linux/vmalloc.h> 10 11 #include <net/bluetooth/bluetooth.h> 12 #include <net/bluetooth/hci_core.h> 13 14 #include "btqca.h" 15 16 int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver, 17 enum qca_btsoc_type soc_type) 18 { 19 struct sk_buff *skb; 20 struct edl_event_hdr *edl; 21 char cmd; 22 int err = 0; 23 u8 event_type = HCI_EV_VENDOR; 24 u8 rlen = sizeof(*edl) + sizeof(*ver); 25 u8 rtype = EDL_APP_VER_RES_EVT; 26 27 bt_dev_dbg(hdev, "QCA Version Request"); 28 29 /* Unlike other SoC's sending version command response as payload to 30 * VSE event. WCN3991 sends version command response as a payload to 31 * command complete event. 32 */ 33 if (soc_type >= QCA_WCN3991) { 34 event_type = 0; 35 rlen += 1; 36 rtype = EDL_PATCH_VER_REQ_CMD; 37 } 38 39 cmd = EDL_PATCH_VER_REQ_CMD; 40 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 41 &cmd, event_type, HCI_INIT_TIMEOUT); 42 if (IS_ERR(skb)) { 43 err = PTR_ERR(skb); 44 bt_dev_err(hdev, "Reading QCA version information failed (%d)", 45 err); 46 return err; 47 } 48 49 if (skb->len != rlen) { 50 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len); 51 err = -EILSEQ; 52 goto out; 53 } 54 55 edl = (struct edl_event_hdr *)(skb->data); 56 57 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 58 edl->rtype != rtype) { 59 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 60 edl->rtype); 61 err = -EIO; 62 goto out; 63 } 64 65 if (soc_type >= QCA_WCN3991) 66 memcpy(ver, edl->data + 1, sizeof(*ver)); 67 else 68 memcpy(ver, &edl->data, sizeof(*ver)); 69 70 bt_dev_info(hdev, "QCA Product ID :0x%08x", 71 le32_to_cpu(ver->product_id)); 72 bt_dev_info(hdev, "QCA SOC Version :0x%08x", 73 le32_to_cpu(ver->soc_id)); 74 bt_dev_info(hdev, "QCA ROM Version :0x%08x", 75 le16_to_cpu(ver->rom_ver)); 76 bt_dev_info(hdev, "QCA Patch Version:0x%08x", 77 le16_to_cpu(ver->patch_ver)); 78 79 if (ver->soc_id == 0 || ver->rom_ver == 0) 80 err = -EILSEQ; 81 82 out: 83 kfree_skb(skb); 84 if (err) 85 bt_dev_err(hdev, "QCA Failed to get version (%d)", err); 86 87 return err; 88 } 89 EXPORT_SYMBOL_GPL(qca_read_soc_version); 90 91 static int qca_read_fw_build_info(struct hci_dev *hdev) 92 { 93 struct sk_buff *skb; 94 struct edl_event_hdr *edl; 95 char *build_label; 96 char cmd; 97 int build_lbl_len, err = 0; 98 99 bt_dev_dbg(hdev, "QCA read fw build info"); 100 101 cmd = EDL_GET_BUILD_INFO_CMD; 102 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 103 &cmd, 0, HCI_INIT_TIMEOUT); 104 if (IS_ERR(skb)) { 105 err = PTR_ERR(skb); 106 bt_dev_err(hdev, "Reading QCA fw build info failed (%d)", 107 err); 108 return err; 109 } 110 111 if (skb->len < sizeof(*edl)) { 112 err = -EILSEQ; 113 goto out; 114 } 115 116 edl = (struct edl_event_hdr *)(skb->data); 117 118 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 119 edl->rtype != EDL_GET_BUILD_INFO_CMD) { 120 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 121 edl->rtype); 122 err = -EIO; 123 goto out; 124 } 125 126 if (skb->len < sizeof(*edl) + 1) { 127 err = -EILSEQ; 128 goto out; 129 } 130 131 build_lbl_len = edl->data[0]; 132 133 if (skb->len < sizeof(*edl) + 1 + build_lbl_len) { 134 err = -EILSEQ; 135 goto out; 136 } 137 138 build_label = kstrndup(&edl->data[1], build_lbl_len, GFP_KERNEL); 139 if (!build_label) { 140 err = -ENOMEM; 141 goto out; 142 } 143 144 hci_set_fw_info(hdev, "%s", build_label); 145 146 bt_dev_info(hdev, "QCA FW build version: %s", build_label); 147 148 kfree(build_label); 149 out: 150 kfree_skb(skb); 151 return err; 152 } 153 154 static int qca_send_patch_config_cmd(struct hci_dev *hdev) 155 { 156 const u8 cmd[] = { EDL_PATCH_CONFIG_CMD, 0x01, 0, 0, 0 }; 157 struct sk_buff *skb; 158 struct edl_event_hdr *edl; 159 int err; 160 161 bt_dev_dbg(hdev, "QCA Patch config"); 162 163 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, sizeof(cmd), 164 cmd, 0, HCI_INIT_TIMEOUT); 165 if (IS_ERR(skb)) { 166 err = PTR_ERR(skb); 167 bt_dev_err(hdev, "Sending QCA Patch config failed (%d)", err); 168 return err; 169 } 170 171 if (skb->len != 2) { 172 bt_dev_err(hdev, "QCA Patch config cmd size mismatch len %d", skb->len); 173 err = -EILSEQ; 174 goto out; 175 } 176 177 edl = (struct edl_event_hdr *)(skb->data); 178 179 if (edl->cresp != EDL_PATCH_CONFIG_RES_EVT || edl->rtype != EDL_PATCH_CONFIG_CMD) { 180 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 181 edl->rtype); 182 err = -EIO; 183 goto out; 184 } 185 186 err = 0; 187 188 out: 189 kfree_skb(skb); 190 return err; 191 } 192 193 static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid) 194 { 195 u8 cmd; 196 struct sk_buff *skb; 197 struct edl_event_hdr *edl; 198 int err = 0; 199 200 cmd = EDL_GET_BID_REQ_CMD; 201 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 202 &cmd, 0, HCI_INIT_TIMEOUT); 203 if (IS_ERR(skb)) { 204 err = PTR_ERR(skb); 205 bt_dev_err(hdev, "Reading QCA board ID failed (%d)", err); 206 return err; 207 } 208 209 edl = skb_pull_data(skb, sizeof(*edl)); 210 if (!edl) { 211 bt_dev_err(hdev, "QCA read board ID with no header"); 212 err = -EILSEQ; 213 goto out; 214 } 215 216 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 217 edl->rtype != EDL_GET_BID_REQ_CMD) { 218 bt_dev_err(hdev, "QCA Wrong packet: %d %d", edl->cresp, edl->rtype); 219 err = -EIO; 220 goto out; 221 } 222 223 if (skb->len < 3) { 224 err = -EILSEQ; 225 goto out; 226 } 227 228 *bid = (edl->data[1] << 8) + edl->data[2]; 229 bt_dev_dbg(hdev, "%s: bid = %x", __func__, *bid); 230 231 out: 232 kfree_skb(skb); 233 return err; 234 } 235 236 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev) 237 { 238 struct sk_buff *skb; 239 int err; 240 241 bt_dev_dbg(hdev, "QCA pre shutdown cmd"); 242 243 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0, 244 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 245 246 if (IS_ERR(skb)) { 247 err = PTR_ERR(skb); 248 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err); 249 return err; 250 } 251 252 kfree_skb(skb); 253 254 return 0; 255 } 256 EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd); 257 258 static bool qca_filename_has_extension(const char *filename) 259 { 260 const char *suffix = strrchr(filename, '.'); 261 262 /* File extensions require a dot, but not as the first or last character */ 263 if (!suffix || suffix == filename || *(suffix + 1) == '\0') 264 return 0; 265 266 /* Avoid matching directories with names that look like files with extensions */ 267 return !strchr(suffix, '/'); 268 } 269 270 static bool qca_get_alt_nvm_file(char *filename, size_t max_size) 271 { 272 char fwname[64]; 273 const char *suffix; 274 275 /* nvm file name has an extension, replace with .bin */ 276 if (qca_filename_has_extension(filename)) { 277 suffix = strrchr(filename, '.'); 278 strscpy(fwname, filename, suffix - filename + 1); 279 snprintf(fwname + (suffix - filename), 280 sizeof(fwname) - (suffix - filename), ".bin"); 281 /* If nvm file is already the default one, return false to skip the retry. */ 282 if (strcmp(fwname, filename) == 0) 283 return false; 284 285 snprintf(filename, max_size, "%s", fwname); 286 return true; 287 } 288 return false; 289 } 290 291 static int qca_tlv_check_data(struct hci_dev *hdev, 292 struct qca_fw_config *config, 293 u8 *fw_data, size_t fw_size, 294 enum qca_btsoc_type soc_type) 295 { 296 const u8 *data; 297 u32 type_len; 298 u16 tag_id, tag_len; 299 int idx, length; 300 struct tlv_type_hdr *tlv; 301 struct tlv_type_patch *tlv_patch; 302 struct tlv_type_nvm *tlv_nvm; 303 uint8_t nvm_baud_rate = config->user_baud_rate; 304 u8 type; 305 306 config->dnld_mode = QCA_SKIP_EVT_NONE; 307 config->dnld_type = QCA_SKIP_EVT_NONE; 308 309 switch (config->type) { 310 case ELF_TYPE_PATCH: 311 if (fw_size < 7) 312 return -EINVAL; 313 314 config->dnld_mode = QCA_SKIP_EVT_VSE_CC; 315 config->dnld_type = QCA_SKIP_EVT_VSE_CC; 316 317 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]); 318 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]); 319 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]); 320 break; 321 case TLV_TYPE_PATCH: 322 if (fw_size < sizeof(struct tlv_type_hdr) + sizeof(struct tlv_type_patch)) 323 return -EINVAL; 324 325 tlv = (struct tlv_type_hdr *)fw_data; 326 type_len = le32_to_cpu(tlv->type_len); 327 tlv_patch = (struct tlv_type_patch *)tlv->data; 328 329 /* For Rome version 1.1 to 3.1, all segment commands 330 * are acked by a vendor specific event (VSE). 331 * For Rome >= 3.2, the download mode field indicates 332 * if VSE is skipped by the controller. 333 * In case VSE is skipped, only the last segment is acked. 334 */ 335 config->dnld_mode = tlv_patch->download_mode; 336 config->dnld_type = config->dnld_mode; 337 338 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff); 339 BT_DBG("Total Length : %d bytes", 340 le32_to_cpu(tlv_patch->total_size)); 341 BT_DBG("Patch Data Length : %d bytes", 342 le32_to_cpu(tlv_patch->data_length)); 343 BT_DBG("Signing Format Version : 0x%x", 344 tlv_patch->format_version); 345 BT_DBG("Signature Algorithm : 0x%x", 346 tlv_patch->signature); 347 BT_DBG("Download mode : 0x%x", 348 tlv_patch->download_mode); 349 BT_DBG("Reserved : 0x%x", 350 tlv_patch->reserved1); 351 BT_DBG("Product ID : 0x%04x", 352 le16_to_cpu(tlv_patch->product_id)); 353 BT_DBG("Rom Build Version : 0x%04x", 354 le16_to_cpu(tlv_patch->rom_build)); 355 BT_DBG("Patch Version : 0x%04x", 356 le16_to_cpu(tlv_patch->patch_version)); 357 BT_DBG("Reserved : 0x%x", 358 le16_to_cpu(tlv_patch->reserved2)); 359 BT_DBG("Patch Entry Address : 0x%x", 360 le32_to_cpu(tlv_patch->entry)); 361 break; 362 363 case TLV_TYPE_NVM: 364 if (fw_size < sizeof(struct tlv_type_hdr)) 365 return -EINVAL; 366 367 tlv = (struct tlv_type_hdr *)fw_data; 368 369 type_len = le32_to_cpu(tlv->type_len); 370 length = type_len >> 8; 371 type = type_len & 0xff; 372 373 /* Some NVM files have more than one set of tags, only parse 374 * the first set when it has type 2 for now. When there is 375 * more than one set there is an enclosing header of type 4. 376 */ 377 if (type == 4) { 378 if (fw_size < 2 * sizeof(struct tlv_type_hdr)) 379 return -EINVAL; 380 381 tlv++; 382 383 type_len = le32_to_cpu(tlv->type_len); 384 length = type_len >> 8; 385 type = type_len & 0xff; 386 } 387 388 BT_DBG("TLV Type\t\t : 0x%x", type); 389 BT_DBG("Length\t\t : %d bytes", length); 390 391 if (type != 2) 392 break; 393 394 if (fw_size < length + (tlv->data - fw_data)) 395 return -EINVAL; 396 397 idx = 0; 398 data = tlv->data; 399 while (idx + sizeof(struct tlv_type_nvm) <= length) { 400 tlv_nvm = (struct tlv_type_nvm *)(data + idx); 401 402 tag_id = le16_to_cpu(tlv_nvm->tag_id); 403 tag_len = le16_to_cpu(tlv_nvm->tag_len); 404 405 if (length < idx + sizeof(struct tlv_type_nvm) + tag_len) 406 return -EINVAL; 407 408 /* Update NVM tags as needed */ 409 switch (tag_id) { 410 case EDL_TAG_ID_BD_ADDR: 411 if (tag_len != sizeof(bdaddr_t)) 412 return -EINVAL; 413 414 memcpy(&config->bdaddr, tlv_nvm->data, sizeof(bdaddr_t)); 415 416 break; 417 418 case EDL_TAG_ID_HCI: 419 if (tag_len < 3) 420 return -EINVAL; 421 422 /* HCI transport layer parameters 423 * enabling software inband sleep 424 * onto controller side. 425 */ 426 tlv_nvm->data[0] |= 0x80; 427 428 /* UART Baud Rate */ 429 if (soc_type >= QCA_WCN3991) 430 tlv_nvm->data[1] = nvm_baud_rate; 431 else 432 tlv_nvm->data[2] = nvm_baud_rate; 433 434 break; 435 436 case EDL_TAG_ID_DEEP_SLEEP: 437 if (tag_len < 1) 438 return -EINVAL; 439 440 /* Sleep enable mask 441 * enabling deep sleep feature on controller. 442 */ 443 tlv_nvm->data[0] |= 0x01; 444 445 break; 446 } 447 448 idx += sizeof(struct tlv_type_nvm) + tag_len; 449 } 450 break; 451 452 default: 453 BT_ERR("Unknown TLV type %d", config->type); 454 return -EINVAL; 455 } 456 457 return 0; 458 } 459 460 static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size, 461 const u8 *data, enum qca_tlv_dnld_mode mode, 462 enum qca_btsoc_type soc_type) 463 { 464 struct sk_buff *skb; 465 struct edl_event_hdr *edl; 466 struct tlv_seg_resp *tlv_resp; 467 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2]; 468 int err = 0; 469 u8 event_type = HCI_EV_VENDOR; 470 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp)); 471 u8 rtype = EDL_TVL_DNLD_RES_EVT; 472 473 cmd[0] = EDL_PATCH_TLV_REQ_CMD; 474 cmd[1] = seg_size; 475 memcpy(cmd + 2, data, seg_size); 476 477 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE) 478 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, 479 cmd); 480 481 /* Unlike other SoC's sending version command response as payload to 482 * VSE event. WCN3991 sends version command response as a payload to 483 * command complete event. 484 */ 485 if (soc_type >= QCA_WCN3991) { 486 event_type = 0; 487 rlen = sizeof(*edl); 488 rtype = EDL_PATCH_TLV_REQ_CMD; 489 } 490 491 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd, 492 event_type, HCI_INIT_TIMEOUT); 493 if (IS_ERR(skb)) { 494 err = PTR_ERR(skb); 495 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err); 496 return err; 497 } 498 499 if (skb->len != rlen) { 500 bt_dev_err(hdev, "QCA TLV response size mismatch"); 501 err = -EILSEQ; 502 goto out; 503 } 504 505 edl = (struct edl_event_hdr *)(skb->data); 506 507 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) { 508 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x", 509 edl->cresp, edl->rtype); 510 err = -EIO; 511 } 512 513 if (soc_type >= QCA_WCN3991) 514 goto out; 515 516 tlv_resp = (struct tlv_seg_resp *)(edl->data); 517 if (tlv_resp->result) { 518 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)", 519 edl->cresp, edl->rtype, tlv_resp->result); 520 } 521 522 out: 523 kfree_skb(skb); 524 525 return err; 526 } 527 528 static int qca_inject_cmd_complete_event(struct hci_dev *hdev) 529 { 530 struct hci_event_hdr *hdr; 531 struct hci_ev_cmd_complete *evt; 532 struct sk_buff *skb; 533 534 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 535 if (!skb) 536 return -ENOMEM; 537 538 hdr = skb_put(skb, sizeof(*hdr)); 539 hdr->evt = HCI_EV_CMD_COMPLETE; 540 hdr->plen = sizeof(*evt) + 1; 541 542 evt = skb_put(skb, sizeof(*evt)); 543 evt->ncmd = 1; 544 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE); 545 546 skb_put_u8(skb, QCA_HCI_CC_SUCCESS); 547 548 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 549 550 return hci_recv_frame(hdev, skb); 551 } 552 553 static int qca_download_firmware(struct hci_dev *hdev, 554 struct qca_fw_config *config, 555 enum qca_btsoc_type soc_type, 556 u8 rom_ver) 557 { 558 const struct firmware *fw; 559 u8 *data; 560 const u8 *segment; 561 int ret, size, remain, i = 0; 562 563 bt_dev_info(hdev, "QCA Downloading %s", config->fwname); 564 565 ret = request_firmware(&fw, config->fwname, &hdev->dev); 566 if (ret) { 567 /* If the board-specific file is missing, try loading the default 568 * one, unless that was attempted already. 569 */ 570 if (config->type == TLV_TYPE_NVM && 571 qca_get_alt_nvm_file(config->fwname, sizeof(config->fwname))) { 572 bt_dev_info(hdev, "QCA Downloading %s", config->fwname); 573 ret = request_firmware(&fw, config->fwname, &hdev->dev); 574 if (ret) { 575 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 576 config->fwname, ret); 577 return ret; 578 } 579 } else { 580 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 581 config->fwname, ret); 582 return ret; 583 } 584 } 585 586 size = fw->size; 587 data = vmalloc(fw->size); 588 if (!data) { 589 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s", 590 config->fwname); 591 release_firmware(fw); 592 return -ENOMEM; 593 } 594 595 memcpy(data, fw->data, size); 596 release_firmware(fw); 597 598 ret = qca_tlv_check_data(hdev, config, data, size, soc_type); 599 if (ret) 600 goto out; 601 602 segment = data; 603 remain = size; 604 while (remain > 0) { 605 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain); 606 607 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize); 608 609 remain -= segsize; 610 /* The last segment is always acked regardless download mode */ 611 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT) 612 config->dnld_mode = QCA_SKIP_EVT_NONE; 613 614 ret = qca_tlv_send_segment(hdev, segsize, segment, 615 config->dnld_mode, soc_type); 616 if (ret) 617 goto out; 618 619 segment += segsize; 620 } 621 622 /* Latest qualcomm chipsets are not sending a command complete event 623 * for every fw packet sent. They only respond with a vendor specific 624 * event for the last packet. This optimization in the chip will 625 * decrease the BT in initialization time. Here we will inject a command 626 * complete event to avoid a command timeout error message. 627 */ 628 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC || 629 config->dnld_type == QCA_SKIP_EVT_VSE) 630 ret = qca_inject_cmd_complete_event(hdev); 631 632 out: 633 vfree(data); 634 635 return ret; 636 } 637 638 static int qca_disable_soc_logging(struct hci_dev *hdev) 639 { 640 struct sk_buff *skb; 641 u8 cmd[2]; 642 int err; 643 644 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP; 645 cmd[1] = 0x00; 646 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd, 647 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 648 if (IS_ERR(skb)) { 649 err = PTR_ERR(skb); 650 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err); 651 return err; 652 } 653 654 kfree_skb(skb); 655 656 return 0; 657 } 658 659 int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr) 660 { 661 struct sk_buff *skb; 662 u8 cmd[9]; 663 int err; 664 665 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD; 666 cmd[1] = 0x02; /* TAG ID */ 667 cmd[2] = sizeof(bdaddr_t); /* size */ 668 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t)); 669 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd, 670 HCI_EV_VENDOR, HCI_INIT_TIMEOUT); 671 if (IS_ERR(skb)) { 672 err = PTR_ERR(skb); 673 bt_dev_err(hdev, "QCA Change address command failed (%d)", err); 674 return err; 675 } 676 677 kfree_skb(skb); 678 679 return 0; 680 } 681 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome); 682 683 static int qca_check_bdaddr(struct hci_dev *hdev, const struct qca_fw_config *config) 684 { 685 struct hci_rp_read_bd_addr *bda; 686 struct sk_buff *skb; 687 int err; 688 689 if (bacmp(&hdev->public_addr, BDADDR_ANY)) 690 return 0; 691 692 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, 693 HCI_INIT_TIMEOUT); 694 if (IS_ERR(skb)) { 695 err = PTR_ERR(skb); 696 bt_dev_err(hdev, "Failed to read device address (%d)", err); 697 return err; 698 } 699 700 if (skb->len != sizeof(*bda)) { 701 bt_dev_err(hdev, "Device address length mismatch"); 702 kfree_skb(skb); 703 return -EIO; 704 } 705 706 bda = (struct hci_rp_read_bd_addr *)skb->data; 707 if (!bacmp(&bda->bdaddr, &config->bdaddr)) 708 hci_set_quirk(hdev, HCI_QUIRK_USE_BDADDR_PROPERTY); 709 710 kfree_skb(skb); 711 712 return 0; 713 } 714 715 static void qca_get_nvm_name_by_board(char *fwname, size_t max_size, 716 const char *stem, enum qca_btsoc_type soc_type, 717 struct qca_btsoc_version ver, u8 rom_ver, u16 bid) 718 { 719 const char *variant; 720 const char *prefix; 721 722 /* Set the default value to variant and prefix */ 723 variant = ""; 724 prefix = "b"; 725 726 if (soc_type == QCA_QCA2066) 727 prefix = ""; 728 729 if (soc_type == QCA_WCN6855 || soc_type == QCA_QCA2066) { 730 /* If the chip is manufactured by GlobalFoundries */ 731 if ((le32_to_cpu(ver.soc_id) & QCA_HSP_GF_SOC_MASK) == QCA_HSP_GF_SOC_ID) 732 variant = "g"; 733 } 734 735 if (rom_ver != 0) { 736 if (bid == 0x0 || bid == 0xffff) 737 snprintf(fwname, max_size, "qca/%s%02x%s.bin", stem, rom_ver, variant); 738 else 739 snprintf(fwname, max_size, "qca/%s%02x%s.%s%02x", stem, rom_ver, 740 variant, prefix, bid); 741 } else { 742 if (bid == 0x0 || bid == 0xffff) 743 snprintf(fwname, max_size, "qca/%s%s.bin", stem, variant); 744 else 745 snprintf(fwname, max_size, "qca/%s%s.%s%02x", stem, variant, prefix, bid); 746 } 747 } 748 749 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 750 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver, 751 const char *firmware_name, const char *rampatch_name) 752 { 753 struct qca_fw_config config = {}; 754 const char *variant = ""; 755 int err; 756 u8 rom_ver = 0; 757 u32 soc_ver; 758 u16 boardid = 0; 759 760 bt_dev_dbg(hdev, "QCA setup on UART"); 761 762 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver); 763 764 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver); 765 766 config.user_baud_rate = baudrate; 767 768 /* Firmware files to download are based on ROM version. 769 * ROM version is derived from last two bytes of soc_ver. 770 */ 771 if (soc_type == QCA_WCN3988) 772 rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f); 773 else if (soc_type == QCA_WCN3998) 774 rom_ver = ((soc_ver & 0x0000f000) >> 0x07) | (soc_ver & 0x0000000f); 775 else 776 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f); 777 778 if (soc_type == QCA_WCN6750) 779 qca_send_patch_config_cmd(hdev); 780 781 /* Download rampatch file */ 782 config.type = TLV_TYPE_PATCH; 783 if (rampatch_name) { 784 snprintf(config.fwname, sizeof(config.fwname), "qca/%s", rampatch_name); 785 } else { 786 switch (soc_type) { 787 case QCA_QCA2066: 788 snprintf(config.fwname, sizeof(config.fwname), 789 "qca/hpbtfw%02x.tlv", rom_ver); 790 break; 791 case QCA_QCA6390: 792 snprintf(config.fwname, sizeof(config.fwname), 793 "qca/htbtfw%02x.tlv", rom_ver); 794 break; 795 case QCA_WCN3950: 796 snprintf(config.fwname, sizeof(config.fwname), 797 "qca/cmbtfw%02x.tlv", rom_ver); 798 break; 799 case QCA_WCN3990: 800 case QCA_WCN3991: 801 case QCA_WCN3998: 802 snprintf(config.fwname, sizeof(config.fwname), 803 "qca/crbtfw%02x.tlv", rom_ver); 804 break; 805 case QCA_WCN3988: 806 snprintf(config.fwname, sizeof(config.fwname), 807 "qca/apbtfw%02x.tlv", rom_ver); 808 break; 809 case QCA_WCN6750: 810 /* Choose mbn file by default.If mbn file is not found 811 * then choose tlv file 812 */ 813 config.type = ELF_TYPE_PATCH; 814 snprintf(config.fwname, sizeof(config.fwname), 815 "qca/msbtfw%02x.mbn", rom_ver); 816 break; 817 case QCA_WCN6855: 818 /* Due to historical reasons, WCN685x chip has been using firmware 819 * without the "wcn" prefix. The mapping between the chip and its 820 * corresponding firmware has now been corrected. 821 */ 822 snprintf(config.fwname, sizeof(config.fwname), 823 "qca/wcnhpbtfw%02x.tlv", rom_ver); 824 break; 825 case QCA_WCN7850: 826 snprintf(config.fwname, sizeof(config.fwname), 827 "qca/hmtbtfw%02x.tlv", rom_ver); 828 break; 829 default: 830 snprintf(config.fwname, sizeof(config.fwname), 831 "qca/rampatch_%08x.bin", soc_ver); 832 } 833 } 834 835 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 836 /* For WCN6750, if mbn file is not present then check for 837 * tlv file. 838 */ 839 if (err < 0 && soc_type == QCA_WCN6750) { 840 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)", 841 config.fwname, err); 842 config.type = TLV_TYPE_PATCH; 843 snprintf(config.fwname, sizeof(config.fwname), 844 "qca/msbtfw%02x.tlv", rom_ver); 845 bt_dev_info(hdev, "QCA Downloading %s", config.fwname); 846 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 847 } else if (err < 0 && !rampatch_name && soc_type == QCA_WCN6855) { 848 snprintf(config.fwname, sizeof(config.fwname), 849 "qca/hpbtfw%02x.tlv", rom_ver); 850 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 851 } 852 853 if (err < 0) { 854 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 855 config.fwname, err); 856 return err; 857 } 858 859 /* Give the controller some time to get ready to receive the NVM */ 860 msleep(10); 861 862 if (soc_type == QCA_QCA2066 || soc_type == QCA_WCN7850) 863 qca_read_fw_board_id(hdev, &boardid); 864 865 /* Download NVM configuration */ 866 config.type = TLV_TYPE_NVM; 867 if (firmware_name) { 868 /* The firmware name has an extension, use it directly */ 869 if (qca_filename_has_extension(firmware_name)) { 870 snprintf(config.fwname, sizeof(config.fwname), "qca/%s", firmware_name); 871 } else { 872 qca_read_fw_board_id(hdev, &boardid); 873 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), 874 firmware_name, soc_type, ver, 0, boardid); 875 } 876 } else { 877 switch (soc_type) { 878 case QCA_QCA2066: 879 qca_get_nvm_name_by_board(config.fwname, 880 sizeof(config.fwname), 881 "hpnv", soc_type, ver, 882 rom_ver, boardid); 883 break; 884 case QCA_QCA6390: 885 snprintf(config.fwname, sizeof(config.fwname), 886 "qca/htnv%02x.bin", rom_ver); 887 break; 888 case QCA_WCN3950: 889 if (le32_to_cpu(ver.soc_id) == QCA_WCN3950_SOC_ID_T) 890 variant = "t"; 891 else if (le32_to_cpu(ver.soc_id) == QCA_WCN3950_SOC_ID_S) 892 variant = "s"; 893 894 snprintf(config.fwname, sizeof(config.fwname), 895 "qca/cmnv%02x%s.bin", rom_ver, variant); 896 break; 897 case QCA_WCN3990: 898 case QCA_WCN3991: 899 case QCA_WCN3998: 900 if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) 901 variant = "u"; 902 903 snprintf(config.fwname, sizeof(config.fwname), 904 "qca/crnv%02x%s.bin", rom_ver, variant); 905 break; 906 case QCA_WCN3988: 907 snprintf(config.fwname, sizeof(config.fwname), 908 "qca/apnv%02x.bin", rom_ver); 909 break; 910 case QCA_WCN6750: 911 snprintf(config.fwname, sizeof(config.fwname), 912 "qca/msnv%02x.bin", rom_ver); 913 break; 914 case QCA_WCN6855: 915 qca_read_fw_board_id(hdev, &boardid); 916 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), 917 "wcnhpnv", soc_type, ver, rom_ver, boardid); 918 break; 919 case QCA_WCN7850: 920 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), 921 "hmtnv", soc_type, ver, rom_ver, boardid); 922 break; 923 default: 924 snprintf(config.fwname, sizeof(config.fwname), 925 "qca/nvm_%08x.bin", soc_ver); 926 } 927 } 928 929 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 930 if (err < 0 && !firmware_name && soc_type == QCA_WCN6855) { 931 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname), 932 "hpnv", soc_type, ver, rom_ver, boardid); 933 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 934 } 935 936 if (err < 0) { 937 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 938 config.fwname, err); 939 return err; 940 } 941 942 switch (soc_type) { 943 case QCA_QCA2066: 944 case QCA_QCA6390: 945 case QCA_WCN3991: 946 case QCA_WCN6750: 947 case QCA_WCN6855: 948 case QCA_WCN7850: 949 err = qca_disable_soc_logging(hdev); 950 if (err < 0) 951 return err; 952 break; 953 default: 954 break; 955 } 956 957 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the 958 * VsMsftOpCode. 959 */ 960 switch (soc_type) { 961 case QCA_WCN3950: 962 case QCA_WCN3988: 963 case QCA_WCN3990: 964 case QCA_WCN3991: 965 case QCA_WCN3998: 966 case QCA_WCN6750: 967 hci_set_msft_opcode(hdev, 0xFD70); 968 break; 969 default: 970 break; 971 } 972 973 /* Perform HCI reset */ 974 err = __hci_reset_sync(hdev); 975 if (err < 0) { 976 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err); 977 return err; 978 } 979 bt_dev_dbg(hdev, "QCA HCI_RESET succeed"); 980 981 switch (soc_type) { 982 case QCA_WCN3991: 983 case QCA_WCN6750: 984 case QCA_WCN6855: 985 case QCA_WCN7850: 986 /* get fw build info */ 987 err = qca_read_fw_build_info(hdev); 988 if (err < 0) 989 return err; 990 break; 991 default: 992 break; 993 } 994 995 err = qca_check_bdaddr(hdev, &config); 996 if (err) 997 return err; 998 999 bt_dev_info(hdev, "QCA setup on UART is completed"); 1000 1001 return 0; 1002 } 1003 EXPORT_SYMBOL_GPL(qca_uart_setup); 1004 1005 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 1006 { 1007 bdaddr_t bdaddr_swapped; 1008 struct sk_buff *skb; 1009 int err; 1010 1011 baswap(&bdaddr_swapped, bdaddr); 1012 1013 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, 1014 &bdaddr_swapped, 0, HCI_INIT_TIMEOUT); 1015 if (IS_ERR(skb)) { 1016 err = PTR_ERR(skb); 1017 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err); 1018 return err; 1019 } 1020 1021 kfree_skb(skb); 1022 1023 return 0; 1024 } 1025 EXPORT_SYMBOL_GPL(qca_set_bdaddr); 1026 1027 1028 MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>"); 1029 MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family"); 1030 MODULE_LICENSE("GPL"); 1031