1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Bluetooth support for Broadcom devices 5 * 6 * Copyright (C) 2015 Intel Corporation 7 */ 8 9 #include <linux/module.h> 10 #include <linux/firmware.h> 11 #include <linux/dmi.h> 12 #include <linux/of.h> 13 #include <asm/unaligned.h> 14 15 #include <net/bluetooth/bluetooth.h> 16 #include <net/bluetooth/hci_core.h> 17 18 #include "btbcm.h" 19 20 #define VERSION "0.1" 21 22 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}}) 23 #define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}}) 24 #define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}}) 25 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}}) 26 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}}) 27 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}}) 28 #define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}}) 29 #define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}}) 30 #define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}}) 31 32 #define BCM_FW_NAME_LEN 64 33 #define BCM_FW_NAME_COUNT_MAX 4 34 /* For kmalloc-ing the fw-name array instead of putting it on the stack */ 35 typedef char bcm_fw_name[BCM_FW_NAME_LEN]; 36 37 int btbcm_check_bdaddr(struct hci_dev *hdev) 38 { 39 struct hci_rp_read_bd_addr *bda; 40 struct sk_buff *skb; 41 42 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, 43 HCI_INIT_TIMEOUT); 44 if (IS_ERR(skb)) { 45 int err = PTR_ERR(skb); 46 47 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err); 48 return err; 49 } 50 51 if (skb->len != sizeof(*bda)) { 52 bt_dev_err(hdev, "BCM: Device address length mismatch"); 53 kfree_skb(skb); 54 return -EIO; 55 } 56 57 bda = (struct hci_rp_read_bd_addr *)skb->data; 58 59 /* Check if the address indicates a controller with either an 60 * invalid or default address. In both cases the device needs 61 * to be marked as not having a valid address. 62 * 63 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller 64 * with no configured address. 65 * 66 * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller 67 * with no configured address. 68 * 69 * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller 70 * with no configured address. 71 * 72 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller 73 * with waiting for configuration state. 74 * 75 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller 76 * with waiting for configuration state. 77 * 78 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller 79 * with no configured address. 80 */ 81 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) || 82 !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) || 83 !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) || 84 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) || 85 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) || 86 !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) || 87 !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) || 88 !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) || 89 !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) { 90 bt_dev_info(hdev, "BCM: Using default device address (%pMR)", 91 &bda->bdaddr); 92 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 93 } 94 95 kfree_skb(skb); 96 97 return 0; 98 } 99 EXPORT_SYMBOL_GPL(btbcm_check_bdaddr); 100 101 int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 102 { 103 struct sk_buff *skb; 104 int err; 105 106 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT); 107 if (IS_ERR(skb)) { 108 err = PTR_ERR(skb); 109 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err); 110 return err; 111 } 112 kfree_skb(skb); 113 114 return 0; 115 } 116 EXPORT_SYMBOL_GPL(btbcm_set_bdaddr); 117 118 int btbcm_read_pcm_int_params(struct hci_dev *hdev, 119 struct bcm_set_pcm_int_params *params) 120 { 121 struct sk_buff *skb; 122 int err = 0; 123 124 skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT); 125 if (IS_ERR(skb)) { 126 err = PTR_ERR(skb); 127 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err); 128 return err; 129 } 130 131 if (skb->len != 6 || skb->data[0]) { 132 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch"); 133 kfree_skb(skb); 134 return -EIO; 135 } 136 137 if (params) 138 memcpy(params, skb->data + 1, 5); 139 140 kfree_skb(skb); 141 142 return 0; 143 } 144 EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params); 145 146 int btbcm_write_pcm_int_params(struct hci_dev *hdev, 147 const struct bcm_set_pcm_int_params *params) 148 { 149 struct sk_buff *skb; 150 int err; 151 152 skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT); 153 if (IS_ERR(skb)) { 154 err = PTR_ERR(skb); 155 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err); 156 return err; 157 } 158 kfree_skb(skb); 159 160 return 0; 161 } 162 EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params); 163 164 int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) 165 { 166 const struct hci_command_hdr *cmd; 167 const u8 *fw_ptr; 168 size_t fw_size; 169 struct sk_buff *skb; 170 u16 opcode; 171 int err = 0; 172 173 /* Start Download */ 174 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT); 175 if (IS_ERR(skb)) { 176 err = PTR_ERR(skb); 177 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)", 178 err); 179 goto done; 180 } 181 kfree_skb(skb); 182 183 /* 50 msec delay after Download Minidrv completes */ 184 msleep(50); 185 186 fw_ptr = fw->data; 187 fw_size = fw->size; 188 189 while (fw_size >= sizeof(*cmd)) { 190 const u8 *cmd_param; 191 192 cmd = (struct hci_command_hdr *)fw_ptr; 193 fw_ptr += sizeof(*cmd); 194 fw_size -= sizeof(*cmd); 195 196 if (fw_size < cmd->plen) { 197 bt_dev_err(hdev, "BCM: Patch is corrupted"); 198 err = -EINVAL; 199 goto done; 200 } 201 202 cmd_param = fw_ptr; 203 fw_ptr += cmd->plen; 204 fw_size -= cmd->plen; 205 206 opcode = le16_to_cpu(cmd->opcode); 207 208 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param, 209 HCI_INIT_TIMEOUT); 210 if (IS_ERR(skb)) { 211 err = PTR_ERR(skb); 212 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)", 213 opcode, err); 214 goto done; 215 } 216 kfree_skb(skb); 217 } 218 219 /* 250 msec delay after Launch Ram completes */ 220 msleep(250); 221 222 done: 223 return err; 224 } 225 EXPORT_SYMBOL(btbcm_patchram); 226 227 static int btbcm_reset(struct hci_dev *hdev) 228 { 229 struct sk_buff *skb; 230 231 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 232 if (IS_ERR(skb)) { 233 int err = PTR_ERR(skb); 234 235 bt_dev_err(hdev, "BCM: Reset failed (%d)", err); 236 return err; 237 } 238 kfree_skb(skb); 239 240 /* 100 msec delay for module to complete reset process */ 241 msleep(100); 242 243 return 0; 244 } 245 246 static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev) 247 { 248 struct sk_buff *skb; 249 250 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL, 251 HCI_INIT_TIMEOUT); 252 if (IS_ERR(skb)) { 253 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)", 254 PTR_ERR(skb)); 255 return skb; 256 } 257 258 if (skb->len != sizeof(struct hci_rp_read_local_name)) { 259 bt_dev_err(hdev, "BCM: Local name length mismatch"); 260 kfree_skb(skb); 261 return ERR_PTR(-EIO); 262 } 263 264 return skb; 265 } 266 267 static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev) 268 { 269 struct sk_buff *skb; 270 271 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 272 HCI_INIT_TIMEOUT); 273 if (IS_ERR(skb)) { 274 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)", 275 PTR_ERR(skb)); 276 return skb; 277 } 278 279 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 280 bt_dev_err(hdev, "BCM: Local version length mismatch"); 281 kfree_skb(skb); 282 return ERR_PTR(-EIO); 283 } 284 285 return skb; 286 } 287 288 static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev) 289 { 290 struct sk_buff *skb; 291 292 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT); 293 if (IS_ERR(skb)) { 294 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)", 295 PTR_ERR(skb)); 296 return skb; 297 } 298 299 if (skb->len != 7) { 300 bt_dev_err(hdev, "BCM: Verbose config length mismatch"); 301 kfree_skb(skb); 302 return ERR_PTR(-EIO); 303 } 304 305 return skb; 306 } 307 308 static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev) 309 { 310 struct sk_buff *skb; 311 312 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT); 313 if (IS_ERR(skb)) { 314 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)", 315 PTR_ERR(skb)); 316 return skb; 317 } 318 319 if (skb->len != 9) { 320 bt_dev_err(hdev, "BCM: Controller features length mismatch"); 321 kfree_skb(skb); 322 return ERR_PTR(-EIO); 323 } 324 325 return skb; 326 } 327 328 static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev) 329 { 330 struct sk_buff *skb; 331 332 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT); 333 if (IS_ERR(skb)) { 334 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)", 335 PTR_ERR(skb)); 336 return skb; 337 } 338 339 if (skb->len != 5) { 340 bt_dev_err(hdev, "BCM: USB product length mismatch"); 341 kfree_skb(skb); 342 return ERR_PTR(-EIO); 343 } 344 345 return skb; 346 } 347 348 static const struct dmi_system_id disable_broken_read_transmit_power[] = { 349 { 350 .matches = { 351 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 352 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"), 353 }, 354 }, 355 { 356 .matches = { 357 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 358 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"), 359 }, 360 }, 361 { 362 .matches = { 363 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 364 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"), 365 }, 366 }, 367 { 368 .matches = { 369 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 370 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"), 371 }, 372 }, 373 { 374 .matches = { 375 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 376 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"), 377 }, 378 }, 379 { 380 .matches = { 381 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 382 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"), 383 }, 384 }, 385 { 386 .matches = { 387 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 388 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"), 389 }, 390 }, 391 { } 392 }; 393 394 static int btbcm_read_info(struct hci_dev *hdev) 395 { 396 struct sk_buff *skb; 397 398 /* Read Verbose Config Version Info */ 399 skb = btbcm_read_verbose_config(hdev); 400 if (IS_ERR(skb)) 401 return PTR_ERR(skb); 402 403 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]); 404 kfree_skb(skb); 405 406 /* Read Controller Features */ 407 skb = btbcm_read_controller_features(hdev); 408 if (IS_ERR(skb)) 409 return PTR_ERR(skb); 410 411 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); 412 kfree_skb(skb); 413 414 /* Read DMI and disable broken Read LE Min/Max Tx Power */ 415 if (dmi_first_match(disable_broken_read_transmit_power)) 416 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 417 418 return 0; 419 } 420 421 static int btbcm_print_local_name(struct hci_dev *hdev) 422 { 423 struct sk_buff *skb; 424 425 /* Read Local Name */ 426 skb = btbcm_read_local_name(hdev); 427 if (IS_ERR(skb)) 428 return PTR_ERR(skb); 429 430 bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); 431 kfree_skb(skb); 432 433 return 0; 434 } 435 436 struct bcm_subver_table { 437 u16 subver; 438 const char *name; 439 }; 440 441 static const struct bcm_subver_table bcm_uart_subver_table[] = { 442 { 0x1111, "BCM4362A2" }, /* 000.017.017 */ 443 { 0x4103, "BCM4330B1" }, /* 002.001.003 */ 444 { 0x410d, "BCM4334B0" }, /* 002.001.013 */ 445 { 0x410e, "BCM43341B0" }, /* 002.001.014 */ 446 { 0x4204, "BCM2076B1" }, /* 002.002.004 */ 447 { 0x4406, "BCM4324B3" }, /* 002.004.006 */ 448 { 0x4606, "BCM4324B5" }, /* 002.006.006 */ 449 { 0x6109, "BCM4335C0" }, /* 003.001.009 */ 450 { 0x610c, "BCM4354" }, /* 003.001.012 */ 451 { 0x2122, "BCM4343A0" }, /* 001.001.034 */ 452 { 0x2209, "BCM43430A1" }, /* 001.002.009 */ 453 { 0x6119, "BCM4345C0" }, /* 003.001.025 */ 454 { 0x6606, "BCM4345C5" }, /* 003.006.006 */ 455 { 0x230f, "BCM4356A2" }, /* 001.003.015 */ 456 { 0x220e, "BCM20702A1" }, /* 001.002.014 */ 457 { 0x4217, "BCM4329B1" }, /* 002.002.023 */ 458 { 0x6106, "BCM4359C0" }, /* 003.001.006 */ 459 { 0x4106, "BCM4335A0" }, /* 002.001.006 */ 460 { 0x410c, "BCM43430B0" }, /* 002.001.012 */ 461 { } 462 }; 463 464 static const struct bcm_subver_table bcm_usb_subver_table[] = { 465 { 0x2105, "BCM20703A1" }, /* 001.001.005 */ 466 { 0x210b, "BCM43142A0" }, /* 001.001.011 */ 467 { 0x2112, "BCM4314A0" }, /* 001.001.018 */ 468 { 0x2118, "BCM20702A0" }, /* 001.001.024 */ 469 { 0x2126, "BCM4335A0" }, /* 001.001.038 */ 470 { 0x220e, "BCM20702A1" }, /* 001.002.014 */ 471 { 0x230f, "BCM4356A2" }, /* 001.003.015 */ 472 { 0x4106, "BCM4335B0" }, /* 002.001.006 */ 473 { 0x410e, "BCM20702B0" }, /* 002.001.014 */ 474 { 0x6109, "BCM4335C0" }, /* 003.001.009 */ 475 { 0x610c, "BCM4354" }, /* 003.001.012 */ 476 { 0x6607, "BCM4350C5" }, /* 003.006.007 */ 477 { } 478 }; 479 480 /* 481 * This currently only looks up the device tree board appendix, 482 * but can be expanded to other mechanisms. 483 */ 484 static const char *btbcm_get_board_name(struct device *dev) 485 { 486 #ifdef CONFIG_OF 487 struct device_node *root; 488 char *board_type; 489 const char *tmp; 490 int len; 491 int i; 492 493 root = of_find_node_by_path("/"); 494 if (!root) 495 return NULL; 496 497 if (of_property_read_string_index(root, "compatible", 0, &tmp)) 498 return NULL; 499 500 /* get rid of any '/' in the compatible string */ 501 len = strlen(tmp) + 1; 502 board_type = devm_kzalloc(dev, len, GFP_KERNEL); 503 strscpy(board_type, tmp, len); 504 for (i = 0; i < board_type[i]; i++) { 505 if (board_type[i] == '/') 506 board_type[i] = '-'; 507 } 508 of_node_put(root); 509 510 return board_type; 511 #else 512 return NULL; 513 #endif 514 } 515 516 int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done) 517 { 518 u16 subver, rev, pid, vid; 519 struct sk_buff *skb; 520 struct hci_rp_read_local_version *ver; 521 const struct bcm_subver_table *bcm_subver_table; 522 const char *hw_name = NULL; 523 const char *board_name; 524 char postfix[16] = ""; 525 int fw_name_count = 0; 526 bcm_fw_name *fw_name; 527 const struct firmware *fw; 528 int i, err; 529 530 board_name = btbcm_get_board_name(&hdev->dev); 531 532 /* Reset */ 533 err = btbcm_reset(hdev); 534 if (err) 535 return err; 536 537 /* Read Local Version Info */ 538 skb = btbcm_read_local_version(hdev); 539 if (IS_ERR(skb)) 540 return PTR_ERR(skb); 541 542 ver = (struct hci_rp_read_local_version *)skb->data; 543 rev = le16_to_cpu(ver->hci_rev); 544 subver = le16_to_cpu(ver->lmp_subver); 545 kfree_skb(skb); 546 547 /* Read controller information */ 548 if (!(*fw_load_done)) { 549 err = btbcm_read_info(hdev); 550 if (err) 551 return err; 552 } 553 err = btbcm_print_local_name(hdev); 554 if (err) 555 return err; 556 557 bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table : 558 bcm_uart_subver_table; 559 560 for (i = 0; bcm_subver_table[i].name; i++) { 561 if (subver == bcm_subver_table[i].subver) { 562 hw_name = bcm_subver_table[i].name; 563 break; 564 } 565 } 566 567 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u", 568 hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13, 569 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); 570 571 if (*fw_load_done) 572 return 0; 573 574 if (hdev->bus == HCI_USB) { 575 /* Read USB Product Info */ 576 skb = btbcm_read_usb_product(hdev); 577 if (IS_ERR(skb)) 578 return PTR_ERR(skb); 579 580 vid = get_unaligned_le16(skb->data + 1); 581 pid = get_unaligned_le16(skb->data + 3); 582 kfree_skb(skb); 583 584 snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid); 585 } 586 587 fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL); 588 if (!fw_name) 589 return -ENOMEM; 590 591 if (hw_name) { 592 if (board_name) { 593 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 594 "brcm/%s%s.%s.hcd", hw_name, postfix, board_name); 595 fw_name_count++; 596 } 597 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 598 "brcm/%s%s.hcd", hw_name, postfix); 599 fw_name_count++; 600 } 601 602 if (board_name) { 603 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 604 "brcm/BCM%s.%s.hcd", postfix, board_name); 605 fw_name_count++; 606 } 607 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 608 "brcm/BCM%s.hcd", postfix); 609 fw_name_count++; 610 611 for (i = 0; i < fw_name_count; i++) { 612 err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev); 613 if (err == 0) { 614 bt_dev_info(hdev, "%s '%s' Patch", 615 hw_name ? hw_name : "BCM", fw_name[i]); 616 *fw_load_done = true; 617 break; 618 } 619 } 620 621 if (*fw_load_done) { 622 err = btbcm_patchram(hdev, fw); 623 if (err) 624 bt_dev_info(hdev, "BCM: Patch failed (%d)", err); 625 626 release_firmware(fw); 627 } else { 628 bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:"); 629 for (i = 0; i < fw_name_count; i++) 630 bt_dev_err(hdev, "BCM: '%s'", fw_name[i]); 631 } 632 633 kfree(fw_name); 634 return 0; 635 } 636 EXPORT_SYMBOL_GPL(btbcm_initialize); 637 638 int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done) 639 { 640 int err; 641 642 /* Re-initialize if necessary */ 643 if (*fw_load_done) { 644 err = btbcm_initialize(hdev, fw_load_done); 645 if (err) 646 return err; 647 } 648 649 btbcm_check_bdaddr(hdev); 650 651 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 652 653 return 0; 654 } 655 EXPORT_SYMBOL_GPL(btbcm_finalize); 656 657 int btbcm_setup_patchram(struct hci_dev *hdev) 658 { 659 bool fw_load_done = false; 660 int err; 661 662 /* Initialize */ 663 err = btbcm_initialize(hdev, &fw_load_done); 664 if (err) 665 return err; 666 667 /* Re-initialize after loading Patch */ 668 return btbcm_finalize(hdev, &fw_load_done); 669 } 670 EXPORT_SYMBOL_GPL(btbcm_setup_patchram); 671 672 int btbcm_setup_apple(struct hci_dev *hdev) 673 { 674 struct sk_buff *skb; 675 int err; 676 677 /* Reset */ 678 err = btbcm_reset(hdev); 679 if (err) 680 return err; 681 682 /* Read Verbose Config Version Info */ 683 skb = btbcm_read_verbose_config(hdev); 684 if (!IS_ERR(skb)) { 685 bt_dev_info(hdev, "BCM: chip id %u build %4.4u", 686 skb->data[1], get_unaligned_le16(skb->data + 5)); 687 kfree_skb(skb); 688 } 689 690 /* Read USB Product Info */ 691 skb = btbcm_read_usb_product(hdev); 692 if (!IS_ERR(skb)) { 693 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x", 694 get_unaligned_le16(skb->data + 1), 695 get_unaligned_le16(skb->data + 3)); 696 kfree_skb(skb); 697 } 698 699 /* Read Controller Features */ 700 skb = btbcm_read_controller_features(hdev); 701 if (!IS_ERR(skb)) { 702 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); 703 kfree_skb(skb); 704 } 705 706 /* Read Local Name */ 707 skb = btbcm_read_local_name(hdev); 708 if (!IS_ERR(skb)) { 709 bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); 710 kfree_skb(skb); 711 } 712 713 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 714 715 return 0; 716 } 717 EXPORT_SYMBOL_GPL(btbcm_setup_apple); 718 719 MODULE_AUTHOR("Marcel Holtmann <[email protected]>"); 720 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION); 721 MODULE_VERSION(VERSION); 722 MODULE_LICENSE("GPL"); 723