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 10 #include <net/bluetooth/bluetooth.h> 11 #include <net/bluetooth/hci_core.h> 12 13 #include "btqca.h" 14 15 #define VERSION "0.1" 16 17 int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver, 18 enum qca_btsoc_type soc_type) 19 { 20 struct sk_buff *skb; 21 struct edl_event_hdr *edl; 22 char cmd; 23 int err = 0; 24 u8 event_type = HCI_EV_VENDOR; 25 u8 rlen = sizeof(*edl) + sizeof(*ver); 26 u8 rtype = EDL_APP_VER_RES_EVT; 27 28 bt_dev_dbg(hdev, "QCA Version Request"); 29 30 /* Unlike other SoC's sending version command response as payload to 31 * VSE event. WCN3991 sends version command response as a payload to 32 * command complete event. 33 */ 34 if (soc_type >= QCA_WCN3991) { 35 event_type = 0; 36 rlen += 1; 37 rtype = EDL_PATCH_VER_REQ_CMD; 38 } 39 40 cmd = EDL_PATCH_VER_REQ_CMD; 41 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 42 &cmd, event_type, HCI_INIT_TIMEOUT); 43 if (IS_ERR(skb)) { 44 err = PTR_ERR(skb); 45 bt_dev_err(hdev, "Reading QCA version information failed (%d)", 46 err); 47 return err; 48 } 49 50 if (skb->len != rlen) { 51 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len); 52 err = -EILSEQ; 53 goto out; 54 } 55 56 edl = (struct edl_event_hdr *)(skb->data); 57 if (!edl) { 58 bt_dev_err(hdev, "QCA TLV with no header"); 59 err = -EILSEQ; 60 goto out; 61 } 62 63 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 64 edl->rtype != rtype) { 65 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 66 edl->rtype); 67 err = -EIO; 68 goto out; 69 } 70 71 if (soc_type >= QCA_WCN3991) 72 memcpy(ver, edl->data + 1, sizeof(*ver)); 73 else 74 memcpy(ver, &edl->data, sizeof(*ver)); 75 76 bt_dev_info(hdev, "QCA Product ID :0x%08x", 77 le32_to_cpu(ver->product_id)); 78 bt_dev_info(hdev, "QCA SOC Version :0x%08x", 79 le32_to_cpu(ver->soc_id)); 80 bt_dev_info(hdev, "QCA ROM Version :0x%08x", 81 le16_to_cpu(ver->rom_ver)); 82 bt_dev_info(hdev, "QCA Patch Version:0x%08x", 83 le16_to_cpu(ver->patch_ver)); 84 85 if (ver->soc_id == 0 || ver->rom_ver == 0) 86 err = -EILSEQ; 87 88 out: 89 kfree_skb(skb); 90 if (err) 91 bt_dev_err(hdev, "QCA Failed to get version (%d)", err); 92 93 return err; 94 } 95 EXPORT_SYMBOL_GPL(qca_read_soc_version); 96 97 static int qca_read_fw_build_info(struct hci_dev *hdev) 98 { 99 struct sk_buff *skb; 100 struct edl_event_hdr *edl; 101 char cmd, build_label[QCA_FW_BUILD_VER_LEN]; 102 int build_lbl_len, err = 0; 103 104 bt_dev_dbg(hdev, "QCA read fw build info"); 105 106 cmd = EDL_GET_BUILD_INFO_CMD; 107 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 108 &cmd, 0, HCI_INIT_TIMEOUT); 109 if (IS_ERR(skb)) { 110 err = PTR_ERR(skb); 111 bt_dev_err(hdev, "Reading QCA fw build info failed (%d)", 112 err); 113 return err; 114 } 115 116 edl = (struct edl_event_hdr *)(skb->data); 117 if (!edl) { 118 bt_dev_err(hdev, "QCA read fw build info with no header"); 119 err = -EILSEQ; 120 goto out; 121 } 122 123 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 124 edl->rtype != EDL_GET_BUILD_INFO_CMD) { 125 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 126 edl->rtype); 127 err = -EIO; 128 goto out; 129 } 130 131 build_lbl_len = edl->data[0]; 132 if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) { 133 memcpy(build_label, edl->data + 1, build_lbl_len); 134 *(build_label + build_lbl_len) = '\0'; 135 } 136 137 hci_set_fw_info(hdev, "%s", build_label); 138 139 out: 140 kfree_skb(skb); 141 return err; 142 } 143 144 static int qca_send_reset(struct hci_dev *hdev) 145 { 146 struct sk_buff *skb; 147 int err; 148 149 bt_dev_dbg(hdev, "QCA HCI_RESET"); 150 151 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 152 if (IS_ERR(skb)) { 153 err = PTR_ERR(skb); 154 bt_dev_err(hdev, "QCA Reset failed (%d)", err); 155 return err; 156 } 157 158 kfree_skb(skb); 159 160 return 0; 161 } 162 163 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev) 164 { 165 struct sk_buff *skb; 166 int err; 167 168 bt_dev_dbg(hdev, "QCA pre shutdown cmd"); 169 170 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0, 171 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 172 173 if (IS_ERR(skb)) { 174 err = PTR_ERR(skb); 175 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err); 176 return err; 177 } 178 179 kfree_skb(skb); 180 181 return 0; 182 } 183 EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd); 184 185 static void qca_tlv_check_data(struct hci_dev *hdev, 186 struct qca_fw_config *config, 187 u8 *fw_data, enum qca_btsoc_type soc_type) 188 { 189 const u8 *data; 190 u32 type_len; 191 u16 tag_id, tag_len; 192 int idx, length; 193 struct tlv_type_hdr *tlv; 194 struct tlv_type_patch *tlv_patch; 195 struct tlv_type_nvm *tlv_nvm; 196 uint8_t nvm_baud_rate = config->user_baud_rate; 197 198 config->dnld_mode = QCA_SKIP_EVT_NONE; 199 config->dnld_type = QCA_SKIP_EVT_NONE; 200 201 switch (config->type) { 202 case ELF_TYPE_PATCH: 203 config->dnld_mode = QCA_SKIP_EVT_VSE_CC; 204 config->dnld_type = QCA_SKIP_EVT_VSE_CC; 205 206 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]); 207 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]); 208 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]); 209 break; 210 case TLV_TYPE_PATCH: 211 tlv = (struct tlv_type_hdr *)fw_data; 212 type_len = le32_to_cpu(tlv->type_len); 213 tlv_patch = (struct tlv_type_patch *)tlv->data; 214 215 /* For Rome version 1.1 to 3.1, all segment commands 216 * are acked by a vendor specific event (VSE). 217 * For Rome >= 3.2, the download mode field indicates 218 * if VSE is skipped by the controller. 219 * In case VSE is skipped, only the last segment is acked. 220 */ 221 config->dnld_mode = tlv_patch->download_mode; 222 config->dnld_type = config->dnld_mode; 223 224 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff); 225 BT_DBG("Total Length : %d bytes", 226 le32_to_cpu(tlv_patch->total_size)); 227 BT_DBG("Patch Data Length : %d bytes", 228 le32_to_cpu(tlv_patch->data_length)); 229 BT_DBG("Signing Format Version : 0x%x", 230 tlv_patch->format_version); 231 BT_DBG("Signature Algorithm : 0x%x", 232 tlv_patch->signature); 233 BT_DBG("Download mode : 0x%x", 234 tlv_patch->download_mode); 235 BT_DBG("Reserved : 0x%x", 236 tlv_patch->reserved1); 237 BT_DBG("Product ID : 0x%04x", 238 le16_to_cpu(tlv_patch->product_id)); 239 BT_DBG("Rom Build Version : 0x%04x", 240 le16_to_cpu(tlv_patch->rom_build)); 241 BT_DBG("Patch Version : 0x%04x", 242 le16_to_cpu(tlv_patch->patch_version)); 243 BT_DBG("Reserved : 0x%x", 244 le16_to_cpu(tlv_patch->reserved2)); 245 BT_DBG("Patch Entry Address : 0x%x", 246 le32_to_cpu(tlv_patch->entry)); 247 break; 248 249 case TLV_TYPE_NVM: 250 tlv = (struct tlv_type_hdr *)fw_data; 251 252 type_len = le32_to_cpu(tlv->type_len); 253 length = (type_len >> 8) & 0x00ffffff; 254 255 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff); 256 BT_DBG("Length\t\t : %d bytes", length); 257 258 idx = 0; 259 data = tlv->data; 260 while (idx < length) { 261 tlv_nvm = (struct tlv_type_nvm *)(data + idx); 262 263 tag_id = le16_to_cpu(tlv_nvm->tag_id); 264 tag_len = le16_to_cpu(tlv_nvm->tag_len); 265 266 /* Update NVM tags as needed */ 267 switch (tag_id) { 268 case EDL_TAG_ID_HCI: 269 /* HCI transport layer parameters 270 * enabling software inband sleep 271 * onto controller side. 272 */ 273 tlv_nvm->data[0] |= 0x80; 274 275 /* UART Baud Rate */ 276 if (soc_type >= QCA_WCN3991) 277 tlv_nvm->data[1] = nvm_baud_rate; 278 else 279 tlv_nvm->data[2] = nvm_baud_rate; 280 281 break; 282 283 case EDL_TAG_ID_DEEP_SLEEP: 284 /* Sleep enable mask 285 * enabling deep sleep feature on controller. 286 */ 287 tlv_nvm->data[0] |= 0x01; 288 289 break; 290 } 291 292 idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len); 293 } 294 break; 295 296 default: 297 BT_ERR("Unknown TLV type %d", config->type); 298 break; 299 } 300 } 301 302 static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size, 303 const u8 *data, enum qca_tlv_dnld_mode mode, 304 enum qca_btsoc_type soc_type) 305 { 306 struct sk_buff *skb; 307 struct edl_event_hdr *edl; 308 struct tlv_seg_resp *tlv_resp; 309 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2]; 310 int err = 0; 311 u8 event_type = HCI_EV_VENDOR; 312 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp)); 313 u8 rtype = EDL_TVL_DNLD_RES_EVT; 314 315 cmd[0] = EDL_PATCH_TLV_REQ_CMD; 316 cmd[1] = seg_size; 317 memcpy(cmd + 2, data, seg_size); 318 319 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE) 320 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, 321 cmd); 322 323 /* Unlike other SoC's sending version command response as payload to 324 * VSE event. WCN3991 sends version command response as a payload to 325 * command complete event. 326 */ 327 if (soc_type >= QCA_WCN3991) { 328 event_type = 0; 329 rlen = sizeof(*edl); 330 rtype = EDL_PATCH_TLV_REQ_CMD; 331 } 332 333 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd, 334 event_type, HCI_INIT_TIMEOUT); 335 if (IS_ERR(skb)) { 336 err = PTR_ERR(skb); 337 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err); 338 return err; 339 } 340 341 if (skb->len != rlen) { 342 bt_dev_err(hdev, "QCA TLV response size mismatch"); 343 err = -EILSEQ; 344 goto out; 345 } 346 347 edl = (struct edl_event_hdr *)(skb->data); 348 if (!edl) { 349 bt_dev_err(hdev, "TLV with no header"); 350 err = -EILSEQ; 351 goto out; 352 } 353 354 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) { 355 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x", 356 edl->cresp, edl->rtype); 357 err = -EIO; 358 } 359 360 if (soc_type >= QCA_WCN3991) 361 goto out; 362 363 tlv_resp = (struct tlv_seg_resp *)(edl->data); 364 if (tlv_resp->result) { 365 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)", 366 edl->cresp, edl->rtype, tlv_resp->result); 367 } 368 369 out: 370 kfree_skb(skb); 371 372 return err; 373 } 374 375 static int qca_inject_cmd_complete_event(struct hci_dev *hdev) 376 { 377 struct hci_event_hdr *hdr; 378 struct hci_ev_cmd_complete *evt; 379 struct sk_buff *skb; 380 381 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 382 if (!skb) 383 return -ENOMEM; 384 385 hdr = skb_put(skb, sizeof(*hdr)); 386 hdr->evt = HCI_EV_CMD_COMPLETE; 387 hdr->plen = sizeof(*evt) + 1; 388 389 evt = skb_put(skb, sizeof(*evt)); 390 evt->ncmd = 1; 391 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE); 392 393 skb_put_u8(skb, QCA_HCI_CC_SUCCESS); 394 395 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 396 397 return hci_recv_frame(hdev, skb); 398 } 399 400 static int qca_download_firmware(struct hci_dev *hdev, 401 struct qca_fw_config *config, 402 enum qca_btsoc_type soc_type, 403 u8 rom_ver) 404 { 405 const struct firmware *fw; 406 u8 *data; 407 const u8 *segment; 408 int ret, size, remain, i = 0; 409 410 bt_dev_info(hdev, "QCA Downloading %s", config->fwname); 411 412 ret = request_firmware(&fw, config->fwname, &hdev->dev); 413 if (ret) { 414 /* For WCN6750, if mbn file is not present then check for 415 * tlv file. 416 */ 417 if (soc_type == QCA_WCN6750 && config->type == ELF_TYPE_PATCH) { 418 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)", 419 config->fwname, ret); 420 config->type = TLV_TYPE_PATCH; 421 snprintf(config->fwname, sizeof(config->fwname), 422 "qca/msbtfw%02x.tlv", rom_ver); 423 bt_dev_info(hdev, "QCA Downloading %s", config->fwname); 424 ret = request_firmware(&fw, config->fwname, &hdev->dev); 425 if (ret) { 426 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 427 config->fwname, ret); 428 return ret; 429 } 430 } else { 431 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 432 config->fwname, ret); 433 return ret; 434 } 435 } 436 437 size = fw->size; 438 data = vmalloc(fw->size); 439 if (!data) { 440 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s", 441 config->fwname); 442 release_firmware(fw); 443 return -ENOMEM; 444 } 445 446 memcpy(data, fw->data, size); 447 release_firmware(fw); 448 449 qca_tlv_check_data(hdev, config, data, soc_type); 450 451 segment = data; 452 remain = size; 453 while (remain > 0) { 454 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain); 455 456 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize); 457 458 remain -= segsize; 459 /* The last segment is always acked regardless download mode */ 460 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT) 461 config->dnld_mode = QCA_SKIP_EVT_NONE; 462 463 ret = qca_tlv_send_segment(hdev, segsize, segment, 464 config->dnld_mode, soc_type); 465 if (ret) 466 goto out; 467 468 segment += segsize; 469 } 470 471 /* Latest qualcomm chipsets are not sending a command complete event 472 * for every fw packet sent. They only respond with a vendor specific 473 * event for the last packet. This optimization in the chip will 474 * decrease the BT in initialization time. Here we will inject a command 475 * complete event to avoid a command timeout error message. 476 */ 477 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC || 478 config->dnld_type == QCA_SKIP_EVT_VSE) 479 ret = qca_inject_cmd_complete_event(hdev); 480 481 out: 482 vfree(data); 483 484 return ret; 485 } 486 487 static int qca_disable_soc_logging(struct hci_dev *hdev) 488 { 489 struct sk_buff *skb; 490 u8 cmd[2]; 491 int err; 492 493 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP; 494 cmd[1] = 0x00; 495 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd, 496 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 497 if (IS_ERR(skb)) { 498 err = PTR_ERR(skb); 499 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err); 500 return err; 501 } 502 503 kfree_skb(skb); 504 505 return 0; 506 } 507 508 int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr) 509 { 510 struct sk_buff *skb; 511 u8 cmd[9]; 512 int err; 513 514 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD; 515 cmd[1] = 0x02; /* TAG ID */ 516 cmd[2] = sizeof(bdaddr_t); /* size */ 517 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t)); 518 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd, 519 HCI_EV_VENDOR, HCI_INIT_TIMEOUT); 520 if (IS_ERR(skb)) { 521 err = PTR_ERR(skb); 522 bt_dev_err(hdev, "QCA Change address command failed (%d)", err); 523 return err; 524 } 525 526 kfree_skb(skb); 527 528 return 0; 529 } 530 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome); 531 532 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 533 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver, 534 const char *firmware_name) 535 { 536 struct qca_fw_config config; 537 int err; 538 u8 rom_ver = 0; 539 u32 soc_ver; 540 541 bt_dev_dbg(hdev, "QCA setup on UART"); 542 543 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver); 544 545 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver); 546 547 config.user_baud_rate = baudrate; 548 549 /* Firmware files to download are based on ROM version. 550 * ROM version is derived from last two bytes of soc_ver. 551 */ 552 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f); 553 554 /* Download rampatch file */ 555 config.type = TLV_TYPE_PATCH; 556 if (qca_is_wcn399x(soc_type)) { 557 snprintf(config.fwname, sizeof(config.fwname), 558 "qca/crbtfw%02x.tlv", rom_ver); 559 } else if (soc_type == QCA_QCA6390) { 560 snprintf(config.fwname, sizeof(config.fwname), 561 "qca/htbtfw%02x.tlv", rom_ver); 562 } else if (soc_type == QCA_WCN6750) { 563 /* Choose mbn file by default.If mbn file is not found 564 * then choose tlv file 565 */ 566 config.type = ELF_TYPE_PATCH; 567 snprintf(config.fwname, sizeof(config.fwname), 568 "qca/msbtfw%02x.mbn", rom_ver); 569 } else { 570 snprintf(config.fwname, sizeof(config.fwname), 571 "qca/rampatch_%08x.bin", soc_ver); 572 } 573 574 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 575 if (err < 0) { 576 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err); 577 return err; 578 } 579 580 /* Give the controller some time to get ready to receive the NVM */ 581 msleep(10); 582 583 /* Download NVM configuration */ 584 config.type = TLV_TYPE_NVM; 585 if (firmware_name) 586 snprintf(config.fwname, sizeof(config.fwname), 587 "qca/%s", firmware_name); 588 else if (qca_is_wcn399x(soc_type)) { 589 if (ver.soc_id == QCA_WCN3991_SOC_ID) { 590 snprintf(config.fwname, sizeof(config.fwname), 591 "qca/crnv%02xu.bin", rom_ver); 592 } else { 593 snprintf(config.fwname, sizeof(config.fwname), 594 "qca/crnv%02x.bin", rom_ver); 595 } 596 } 597 else if (soc_type == QCA_QCA6390) 598 snprintf(config.fwname, sizeof(config.fwname), 599 "qca/htnv%02x.bin", rom_ver); 600 else if (soc_type == QCA_WCN6750) 601 snprintf(config.fwname, sizeof(config.fwname), 602 "qca/msnv%02x.bin", rom_ver); 603 else 604 snprintf(config.fwname, sizeof(config.fwname), 605 "qca/nvm_%08x.bin", soc_ver); 606 607 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 608 if (err < 0) { 609 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err); 610 return err; 611 } 612 613 if (soc_type >= QCA_WCN3991) { 614 err = qca_disable_soc_logging(hdev); 615 if (err < 0) 616 return err; 617 } 618 619 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the 620 * VsMsftOpCode. 621 */ 622 switch (soc_type) { 623 case QCA_WCN3990: 624 case QCA_WCN3991: 625 case QCA_WCN3998: 626 case QCA_WCN6750: 627 hci_set_msft_opcode(hdev, 0xFD70); 628 break; 629 default: 630 break; 631 } 632 633 /* Perform HCI reset */ 634 err = qca_send_reset(hdev); 635 if (err < 0) { 636 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err); 637 return err; 638 } 639 640 if (soc_type == QCA_WCN3991 || soc_type == QCA_WCN6750) { 641 /* get fw build info */ 642 err = qca_read_fw_build_info(hdev); 643 if (err < 0) 644 return err; 645 } 646 647 bt_dev_info(hdev, "QCA setup on UART is completed"); 648 649 return 0; 650 } 651 EXPORT_SYMBOL_GPL(qca_uart_setup); 652 653 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 654 { 655 struct sk_buff *skb; 656 int err; 657 658 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr, 659 HCI_EV_VENDOR, HCI_INIT_TIMEOUT); 660 if (IS_ERR(skb)) { 661 err = PTR_ERR(skb); 662 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err); 663 return err; 664 } 665 666 kfree_skb(skb); 667 668 return 0; 669 } 670 EXPORT_SYMBOL_GPL(qca_set_bdaddr); 671 672 673 MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>"); 674 MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION); 675 MODULE_VERSION(VERSION); 676 MODULE_LICENSE("GPL"); 677