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 #define VERSION "0.1" 17 18 int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver, 19 enum qca_btsoc_type soc_type) 20 { 21 struct sk_buff *skb; 22 struct edl_event_hdr *edl; 23 char cmd; 24 int err = 0; 25 u8 event_type = HCI_EV_VENDOR; 26 u8 rlen = sizeof(*edl) + sizeof(*ver); 27 u8 rtype = EDL_APP_VER_RES_EVT; 28 29 bt_dev_dbg(hdev, "QCA Version Request"); 30 31 /* Unlike other SoC's sending version command response as payload to 32 * VSE event. WCN3991 sends version command response as a payload to 33 * command complete event. 34 */ 35 if (soc_type >= QCA_WCN3991) { 36 event_type = 0; 37 rlen += 1; 38 rtype = EDL_PATCH_VER_REQ_CMD; 39 } 40 41 cmd = EDL_PATCH_VER_REQ_CMD; 42 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 43 &cmd, event_type, HCI_INIT_TIMEOUT); 44 if (IS_ERR(skb)) { 45 err = PTR_ERR(skb); 46 bt_dev_err(hdev, "Reading QCA version information failed (%d)", 47 err); 48 return err; 49 } 50 51 if (skb->len != rlen) { 52 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len); 53 err = -EILSEQ; 54 goto out; 55 } 56 57 edl = (struct edl_event_hdr *)(skb->data); 58 if (!edl) { 59 bt_dev_err(hdev, "QCA TLV with no header"); 60 err = -EILSEQ; 61 goto out; 62 } 63 64 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 65 edl->rtype != rtype) { 66 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 67 edl->rtype); 68 err = -EIO; 69 goto out; 70 } 71 72 if (soc_type >= QCA_WCN3991) 73 memcpy(ver, edl->data + 1, sizeof(*ver)); 74 else 75 memcpy(ver, &edl->data, sizeof(*ver)); 76 77 bt_dev_info(hdev, "QCA Product ID :0x%08x", 78 le32_to_cpu(ver->product_id)); 79 bt_dev_info(hdev, "QCA SOC Version :0x%08x", 80 le32_to_cpu(ver->soc_id)); 81 bt_dev_info(hdev, "QCA ROM Version :0x%08x", 82 le16_to_cpu(ver->rom_ver)); 83 bt_dev_info(hdev, "QCA Patch Version:0x%08x", 84 le16_to_cpu(ver->patch_ver)); 85 86 if (ver->soc_id == 0 || ver->rom_ver == 0) 87 err = -EILSEQ; 88 89 out: 90 kfree_skb(skb); 91 if (err) 92 bt_dev_err(hdev, "QCA Failed to get version (%d)", err); 93 94 return err; 95 } 96 EXPORT_SYMBOL_GPL(qca_read_soc_version); 97 98 static int qca_read_fw_build_info(struct hci_dev *hdev) 99 { 100 struct sk_buff *skb; 101 struct edl_event_hdr *edl; 102 char cmd, build_label[QCA_FW_BUILD_VER_LEN]; 103 int build_lbl_len, err = 0; 104 105 bt_dev_dbg(hdev, "QCA read fw build info"); 106 107 cmd = EDL_GET_BUILD_INFO_CMD; 108 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, 109 &cmd, 0, HCI_INIT_TIMEOUT); 110 if (IS_ERR(skb)) { 111 err = PTR_ERR(skb); 112 bt_dev_err(hdev, "Reading QCA fw build info failed (%d)", 113 err); 114 return err; 115 } 116 117 edl = (struct edl_event_hdr *)(skb->data); 118 if (!edl) { 119 bt_dev_err(hdev, "QCA read fw build info with no header"); 120 err = -EILSEQ; 121 goto out; 122 } 123 124 if (edl->cresp != EDL_CMD_REQ_RES_EVT || 125 edl->rtype != EDL_GET_BUILD_INFO_CMD) { 126 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, 127 edl->rtype); 128 err = -EIO; 129 goto out; 130 } 131 132 build_lbl_len = edl->data[0]; 133 if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) { 134 memcpy(build_label, edl->data + 1, build_lbl_len); 135 *(build_label + build_lbl_len) = '\0'; 136 } 137 138 hci_set_fw_info(hdev, "%s", build_label); 139 140 out: 141 kfree_skb(skb); 142 return err; 143 } 144 145 static int qca_send_reset(struct hci_dev *hdev) 146 { 147 struct sk_buff *skb; 148 int err; 149 150 bt_dev_dbg(hdev, "QCA HCI_RESET"); 151 152 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 153 if (IS_ERR(skb)) { 154 err = PTR_ERR(skb); 155 bt_dev_err(hdev, "QCA Reset failed (%d)", err); 156 return err; 157 } 158 159 kfree_skb(skb); 160 161 return 0; 162 } 163 164 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev) 165 { 166 struct sk_buff *skb; 167 int err; 168 169 bt_dev_dbg(hdev, "QCA pre shutdown cmd"); 170 171 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0, 172 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 173 174 if (IS_ERR(skb)) { 175 err = PTR_ERR(skb); 176 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err); 177 return err; 178 } 179 180 kfree_skb(skb); 181 182 return 0; 183 } 184 EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd); 185 186 static void qca_tlv_check_data(struct hci_dev *hdev, 187 struct qca_fw_config *config, 188 u8 *fw_data, enum qca_btsoc_type soc_type) 189 { 190 const u8 *data; 191 u32 type_len; 192 u16 tag_id, tag_len; 193 int idx, length; 194 struct tlv_type_hdr *tlv; 195 struct tlv_type_patch *tlv_patch; 196 struct tlv_type_nvm *tlv_nvm; 197 uint8_t nvm_baud_rate = config->user_baud_rate; 198 199 config->dnld_mode = QCA_SKIP_EVT_NONE; 200 config->dnld_type = QCA_SKIP_EVT_NONE; 201 202 switch (config->type) { 203 case ELF_TYPE_PATCH: 204 config->dnld_mode = QCA_SKIP_EVT_VSE_CC; 205 config->dnld_type = QCA_SKIP_EVT_VSE_CC; 206 207 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]); 208 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]); 209 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]); 210 break; 211 case TLV_TYPE_PATCH: 212 tlv = (struct tlv_type_hdr *)fw_data; 213 type_len = le32_to_cpu(tlv->type_len); 214 tlv_patch = (struct tlv_type_patch *)tlv->data; 215 216 /* For Rome version 1.1 to 3.1, all segment commands 217 * are acked by a vendor specific event (VSE). 218 * For Rome >= 3.2, the download mode field indicates 219 * if VSE is skipped by the controller. 220 * In case VSE is skipped, only the last segment is acked. 221 */ 222 config->dnld_mode = tlv_patch->download_mode; 223 config->dnld_type = config->dnld_mode; 224 225 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff); 226 BT_DBG("Total Length : %d bytes", 227 le32_to_cpu(tlv_patch->total_size)); 228 BT_DBG("Patch Data Length : %d bytes", 229 le32_to_cpu(tlv_patch->data_length)); 230 BT_DBG("Signing Format Version : 0x%x", 231 tlv_patch->format_version); 232 BT_DBG("Signature Algorithm : 0x%x", 233 tlv_patch->signature); 234 BT_DBG("Download mode : 0x%x", 235 tlv_patch->download_mode); 236 BT_DBG("Reserved : 0x%x", 237 tlv_patch->reserved1); 238 BT_DBG("Product ID : 0x%04x", 239 le16_to_cpu(tlv_patch->product_id)); 240 BT_DBG("Rom Build Version : 0x%04x", 241 le16_to_cpu(tlv_patch->rom_build)); 242 BT_DBG("Patch Version : 0x%04x", 243 le16_to_cpu(tlv_patch->patch_version)); 244 BT_DBG("Reserved : 0x%x", 245 le16_to_cpu(tlv_patch->reserved2)); 246 BT_DBG("Patch Entry Address : 0x%x", 247 le32_to_cpu(tlv_patch->entry)); 248 break; 249 250 case TLV_TYPE_NVM: 251 tlv = (struct tlv_type_hdr *)fw_data; 252 253 type_len = le32_to_cpu(tlv->type_len); 254 length = (type_len >> 8) & 0x00ffffff; 255 256 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff); 257 BT_DBG("Length\t\t : %d bytes", length); 258 259 idx = 0; 260 data = tlv->data; 261 while (idx < length) { 262 tlv_nvm = (struct tlv_type_nvm *)(data + idx); 263 264 tag_id = le16_to_cpu(tlv_nvm->tag_id); 265 tag_len = le16_to_cpu(tlv_nvm->tag_len); 266 267 /* Update NVM tags as needed */ 268 switch (tag_id) { 269 case EDL_TAG_ID_HCI: 270 /* HCI transport layer parameters 271 * enabling software inband sleep 272 * onto controller side. 273 */ 274 tlv_nvm->data[0] |= 0x80; 275 276 /* UART Baud Rate */ 277 if (soc_type >= QCA_WCN3991) 278 tlv_nvm->data[1] = nvm_baud_rate; 279 else 280 tlv_nvm->data[2] = nvm_baud_rate; 281 282 break; 283 284 case EDL_TAG_ID_DEEP_SLEEP: 285 /* Sleep enable mask 286 * enabling deep sleep feature on controller. 287 */ 288 tlv_nvm->data[0] |= 0x01; 289 290 break; 291 } 292 293 idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len); 294 } 295 break; 296 297 default: 298 BT_ERR("Unknown TLV type %d", config->type); 299 break; 300 } 301 } 302 303 static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size, 304 const u8 *data, enum qca_tlv_dnld_mode mode, 305 enum qca_btsoc_type soc_type) 306 { 307 struct sk_buff *skb; 308 struct edl_event_hdr *edl; 309 struct tlv_seg_resp *tlv_resp; 310 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2]; 311 int err = 0; 312 u8 event_type = HCI_EV_VENDOR; 313 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp)); 314 u8 rtype = EDL_TVL_DNLD_RES_EVT; 315 316 cmd[0] = EDL_PATCH_TLV_REQ_CMD; 317 cmd[1] = seg_size; 318 memcpy(cmd + 2, data, seg_size); 319 320 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE) 321 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, 322 cmd); 323 324 /* Unlike other SoC's sending version command response as payload to 325 * VSE event. WCN3991 sends version command response as a payload to 326 * command complete event. 327 */ 328 if (soc_type >= QCA_WCN3991) { 329 event_type = 0; 330 rlen = sizeof(*edl); 331 rtype = EDL_PATCH_TLV_REQ_CMD; 332 } 333 334 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd, 335 event_type, HCI_INIT_TIMEOUT); 336 if (IS_ERR(skb)) { 337 err = PTR_ERR(skb); 338 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err); 339 return err; 340 } 341 342 if (skb->len != rlen) { 343 bt_dev_err(hdev, "QCA TLV response size mismatch"); 344 err = -EILSEQ; 345 goto out; 346 } 347 348 edl = (struct edl_event_hdr *)(skb->data); 349 if (!edl) { 350 bt_dev_err(hdev, "TLV with no header"); 351 err = -EILSEQ; 352 goto out; 353 } 354 355 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) { 356 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x", 357 edl->cresp, edl->rtype); 358 err = -EIO; 359 } 360 361 if (soc_type >= QCA_WCN3991) 362 goto out; 363 364 tlv_resp = (struct tlv_seg_resp *)(edl->data); 365 if (tlv_resp->result) { 366 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)", 367 edl->cresp, edl->rtype, tlv_resp->result); 368 } 369 370 out: 371 kfree_skb(skb); 372 373 return err; 374 } 375 376 static int qca_inject_cmd_complete_event(struct hci_dev *hdev) 377 { 378 struct hci_event_hdr *hdr; 379 struct hci_ev_cmd_complete *evt; 380 struct sk_buff *skb; 381 382 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 383 if (!skb) 384 return -ENOMEM; 385 386 hdr = skb_put(skb, sizeof(*hdr)); 387 hdr->evt = HCI_EV_CMD_COMPLETE; 388 hdr->plen = sizeof(*evt) + 1; 389 390 evt = skb_put(skb, sizeof(*evt)); 391 evt->ncmd = 1; 392 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE); 393 394 skb_put_u8(skb, QCA_HCI_CC_SUCCESS); 395 396 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 397 398 return hci_recv_frame(hdev, skb); 399 } 400 401 static int qca_download_firmware(struct hci_dev *hdev, 402 struct qca_fw_config *config, 403 enum qca_btsoc_type soc_type, 404 u8 rom_ver) 405 { 406 const struct firmware *fw; 407 u8 *data; 408 const u8 *segment; 409 int ret, size, remain, i = 0; 410 411 bt_dev_info(hdev, "QCA Downloading %s", config->fwname); 412 413 ret = request_firmware(&fw, config->fwname, &hdev->dev); 414 if (ret) { 415 /* For WCN6750, if mbn file is not present then check for 416 * tlv file. 417 */ 418 if (soc_type == QCA_WCN6750 && config->type == ELF_TYPE_PATCH) { 419 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)", 420 config->fwname, ret); 421 config->type = TLV_TYPE_PATCH; 422 snprintf(config->fwname, sizeof(config->fwname), 423 "qca/msbtfw%02x.tlv", rom_ver); 424 bt_dev_info(hdev, "QCA Downloading %s", config->fwname); 425 ret = request_firmware(&fw, config->fwname, &hdev->dev); 426 if (ret) { 427 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 428 config->fwname, ret); 429 return ret; 430 } 431 } else { 432 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", 433 config->fwname, ret); 434 return ret; 435 } 436 } 437 438 size = fw->size; 439 data = vmalloc(fw->size); 440 if (!data) { 441 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s", 442 config->fwname); 443 release_firmware(fw); 444 return -ENOMEM; 445 } 446 447 memcpy(data, fw->data, size); 448 release_firmware(fw); 449 450 qca_tlv_check_data(hdev, config, data, soc_type); 451 452 segment = data; 453 remain = size; 454 while (remain > 0) { 455 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain); 456 457 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize); 458 459 remain -= segsize; 460 /* The last segment is always acked regardless download mode */ 461 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT) 462 config->dnld_mode = QCA_SKIP_EVT_NONE; 463 464 ret = qca_tlv_send_segment(hdev, segsize, segment, 465 config->dnld_mode, soc_type); 466 if (ret) 467 goto out; 468 469 segment += segsize; 470 } 471 472 /* Latest qualcomm chipsets are not sending a command complete event 473 * for every fw packet sent. They only respond with a vendor specific 474 * event for the last packet. This optimization in the chip will 475 * decrease the BT in initialization time. Here we will inject a command 476 * complete event to avoid a command timeout error message. 477 */ 478 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC || 479 config->dnld_type == QCA_SKIP_EVT_VSE) 480 ret = qca_inject_cmd_complete_event(hdev); 481 482 out: 483 vfree(data); 484 485 return ret; 486 } 487 488 static int qca_disable_soc_logging(struct hci_dev *hdev) 489 { 490 struct sk_buff *skb; 491 u8 cmd[2]; 492 int err; 493 494 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP; 495 cmd[1] = 0x00; 496 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd, 497 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT); 498 if (IS_ERR(skb)) { 499 err = PTR_ERR(skb); 500 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err); 501 return err; 502 } 503 504 kfree_skb(skb); 505 506 return 0; 507 } 508 509 int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr) 510 { 511 struct sk_buff *skb; 512 u8 cmd[9]; 513 int err; 514 515 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD; 516 cmd[1] = 0x02; /* TAG ID */ 517 cmd[2] = sizeof(bdaddr_t); /* size */ 518 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t)); 519 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd, 520 HCI_EV_VENDOR, HCI_INIT_TIMEOUT); 521 if (IS_ERR(skb)) { 522 err = PTR_ERR(skb); 523 bt_dev_err(hdev, "QCA Change address command failed (%d)", err); 524 return err; 525 } 526 527 kfree_skb(skb); 528 529 return 0; 530 } 531 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome); 532 533 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, 534 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver, 535 const char *firmware_name) 536 { 537 struct qca_fw_config config; 538 int err; 539 u8 rom_ver = 0; 540 u32 soc_ver; 541 542 bt_dev_dbg(hdev, "QCA setup on UART"); 543 544 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver); 545 546 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver); 547 548 config.user_baud_rate = baudrate; 549 550 /* Firmware files to download are based on ROM version. 551 * ROM version is derived from last two bytes of soc_ver. 552 */ 553 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f); 554 555 /* Download rampatch file */ 556 config.type = TLV_TYPE_PATCH; 557 if (qca_is_wcn399x(soc_type)) { 558 snprintf(config.fwname, sizeof(config.fwname), 559 "qca/crbtfw%02x.tlv", rom_ver); 560 } else if (soc_type == QCA_QCA6390) { 561 snprintf(config.fwname, sizeof(config.fwname), 562 "qca/htbtfw%02x.tlv", rom_ver); 563 } else if (soc_type == QCA_WCN6750) { 564 /* Choose mbn file by default.If mbn file is not found 565 * then choose tlv file 566 */ 567 config.type = ELF_TYPE_PATCH; 568 snprintf(config.fwname, sizeof(config.fwname), 569 "qca/msbtfw%02x.mbn", rom_ver); 570 } else { 571 snprintf(config.fwname, sizeof(config.fwname), 572 "qca/rampatch_%08x.bin", soc_ver); 573 } 574 575 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 576 if (err < 0) { 577 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err); 578 return err; 579 } 580 581 /* Give the controller some time to get ready to receive the NVM */ 582 msleep(10); 583 584 /* Download NVM configuration */ 585 config.type = TLV_TYPE_NVM; 586 if (firmware_name) 587 snprintf(config.fwname, sizeof(config.fwname), 588 "qca/%s", firmware_name); 589 else if (qca_is_wcn399x(soc_type)) { 590 if (ver.soc_id == QCA_WCN3991_SOC_ID) { 591 snprintf(config.fwname, sizeof(config.fwname), 592 "qca/crnv%02xu.bin", rom_ver); 593 } else { 594 snprintf(config.fwname, sizeof(config.fwname), 595 "qca/crnv%02x.bin", rom_ver); 596 } 597 } 598 else if (soc_type == QCA_QCA6390) 599 snprintf(config.fwname, sizeof(config.fwname), 600 "qca/htnv%02x.bin", rom_ver); 601 else if (soc_type == QCA_WCN6750) 602 snprintf(config.fwname, sizeof(config.fwname), 603 "qca/msnv%02x.bin", rom_ver); 604 else 605 snprintf(config.fwname, sizeof(config.fwname), 606 "qca/nvm_%08x.bin", soc_ver); 607 608 err = qca_download_firmware(hdev, &config, soc_type, rom_ver); 609 if (err < 0) { 610 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err); 611 return err; 612 } 613 614 if (soc_type >= QCA_WCN3991) { 615 err = qca_disable_soc_logging(hdev); 616 if (err < 0) 617 return err; 618 } 619 620 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the 621 * VsMsftOpCode. 622 */ 623 switch (soc_type) { 624 case QCA_WCN3990: 625 case QCA_WCN3991: 626 case QCA_WCN3998: 627 case QCA_WCN6750: 628 hci_set_msft_opcode(hdev, 0xFD70); 629 break; 630 default: 631 break; 632 } 633 634 /* Perform HCI reset */ 635 err = qca_send_reset(hdev); 636 if (err < 0) { 637 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err); 638 return err; 639 } 640 641 if (soc_type == QCA_WCN3991 || soc_type == QCA_WCN6750) { 642 /* get fw build info */ 643 err = qca_read_fw_build_info(hdev); 644 if (err < 0) 645 return err; 646 } 647 648 bt_dev_info(hdev, "QCA setup on UART is completed"); 649 650 return 0; 651 } 652 EXPORT_SYMBOL_GPL(qca_uart_setup); 653 654 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 655 { 656 struct sk_buff *skb; 657 int err; 658 659 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr, 660 HCI_EV_VENDOR, HCI_INIT_TIMEOUT); 661 if (IS_ERR(skb)) { 662 err = PTR_ERR(skb); 663 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err); 664 return err; 665 } 666 667 kfree_skb(skb); 668 669 return 0; 670 } 671 EXPORT_SYMBOL_GPL(qca_set_bdaddr); 672 673 674 MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>"); 675 MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION); 676 MODULE_VERSION(VERSION); 677 MODULE_LICENSE("GPL"); 678