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/efi.h> 10 #include <linux/module.h> 11 #include <linux/firmware.h> 12 #include <linux/dmi.h> 13 #include <linux/of.h> 14 #include <asm/unaligned.h> 15 16 #include <net/bluetooth/bluetooth.h> 17 #include <net/bluetooth/hci_core.h> 18 19 #include "btbcm.h" 20 21 #define VERSION "0.1" 22 23 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}}) 24 #define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}}) 25 #define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}}) 26 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}}) 27 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}}) 28 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}}) 29 #define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}}) 30 #define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}}) 31 #define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}}) 32 33 #define BCM_FW_NAME_LEN 64 34 #define BCM_FW_NAME_COUNT_MAX 4 35 /* For kmalloc-ing the fw-name array instead of putting it on the stack */ 36 typedef char bcm_fw_name[BCM_FW_NAME_LEN]; 37 38 #ifdef CONFIG_EFI 39 static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev) 40 { 41 efi_guid_t guid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61, 0xb5, 0x1f, 42 0x43, 0x26, 0x81, 0x23, 0xd1, 0x13); 43 bdaddr_t efi_bdaddr, bdaddr; 44 efi_status_t status; 45 unsigned long len; 46 int ret; 47 48 if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE)) 49 return -EOPNOTSUPP; 50 51 len = sizeof(efi_bdaddr); 52 status = efi.get_variable(L"BDADDR", &guid, NULL, &len, &efi_bdaddr); 53 if (status != EFI_SUCCESS) 54 return -ENXIO; 55 56 if (len != sizeof(efi_bdaddr)) 57 return -EIO; 58 59 baswap(&bdaddr, &efi_bdaddr); 60 61 ret = btbcm_set_bdaddr(hdev, &bdaddr); 62 if (ret) 63 return ret; 64 65 bt_dev_info(hdev, "BCM: Using EFI device address (%pMR)", &bdaddr); 66 return 0; 67 } 68 #else 69 static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev) 70 { 71 return -EOPNOTSUPP; 72 } 73 #endif 74 75 int btbcm_check_bdaddr(struct hci_dev *hdev) 76 { 77 struct hci_rp_read_bd_addr *bda; 78 struct sk_buff *skb; 79 80 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, 81 HCI_INIT_TIMEOUT); 82 if (IS_ERR(skb)) { 83 int err = PTR_ERR(skb); 84 85 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err); 86 return err; 87 } 88 89 if (skb->len != sizeof(*bda)) { 90 bt_dev_err(hdev, "BCM: Device address length mismatch"); 91 kfree_skb(skb); 92 return -EIO; 93 } 94 95 bda = (struct hci_rp_read_bd_addr *)skb->data; 96 97 /* Check if the address indicates a controller with either an 98 * invalid or default address. In both cases the device needs 99 * to be marked as not having a valid address. 100 * 101 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller 102 * with no configured address. 103 * 104 * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller 105 * with no configured address. 106 * 107 * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller 108 * with no configured address. 109 * 110 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller 111 * with waiting for configuration state. 112 * 113 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller 114 * with waiting for configuration state. 115 * 116 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller 117 * with no configured address. 118 */ 119 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) || 120 !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) || 121 !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) || 122 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) || 123 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) || 124 !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) || 125 !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) || 126 !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) || 127 !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) { 128 /* Try falling back to BDADDR EFI variable */ 129 if (btbcm_set_bdaddr_from_efi(hdev) != 0) { 130 bt_dev_info(hdev, "BCM: Using default device address (%pMR)", 131 &bda->bdaddr); 132 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 133 } 134 } 135 136 kfree_skb(skb); 137 138 return 0; 139 } 140 EXPORT_SYMBOL_GPL(btbcm_check_bdaddr); 141 142 int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 143 { 144 struct sk_buff *skb; 145 int err; 146 147 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT); 148 if (IS_ERR(skb)) { 149 err = PTR_ERR(skb); 150 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err); 151 return err; 152 } 153 kfree_skb(skb); 154 155 return 0; 156 } 157 EXPORT_SYMBOL_GPL(btbcm_set_bdaddr); 158 159 int btbcm_read_pcm_int_params(struct hci_dev *hdev, 160 struct bcm_set_pcm_int_params *params) 161 { 162 struct sk_buff *skb; 163 int err = 0; 164 165 skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT); 166 if (IS_ERR(skb)) { 167 err = PTR_ERR(skb); 168 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err); 169 return err; 170 } 171 172 if (skb->len != 6 || skb->data[0]) { 173 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch"); 174 kfree_skb(skb); 175 return -EIO; 176 } 177 178 if (params) 179 memcpy(params, skb->data + 1, 5); 180 181 kfree_skb(skb); 182 183 return 0; 184 } 185 EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params); 186 187 int btbcm_write_pcm_int_params(struct hci_dev *hdev, 188 const struct bcm_set_pcm_int_params *params) 189 { 190 struct sk_buff *skb; 191 int err; 192 193 skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT); 194 if (IS_ERR(skb)) { 195 err = PTR_ERR(skb); 196 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err); 197 return err; 198 } 199 kfree_skb(skb); 200 201 return 0; 202 } 203 EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params); 204 205 int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) 206 { 207 const struct hci_command_hdr *cmd; 208 const u8 *fw_ptr; 209 size_t fw_size; 210 struct sk_buff *skb; 211 u16 opcode; 212 int err = 0; 213 214 /* Start Download */ 215 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT); 216 if (IS_ERR(skb)) { 217 err = PTR_ERR(skb); 218 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)", 219 err); 220 goto done; 221 } 222 kfree_skb(skb); 223 224 /* 50 msec delay after Download Minidrv completes */ 225 msleep(50); 226 227 fw_ptr = fw->data; 228 fw_size = fw->size; 229 230 while (fw_size >= sizeof(*cmd)) { 231 const u8 *cmd_param; 232 233 cmd = (struct hci_command_hdr *)fw_ptr; 234 fw_ptr += sizeof(*cmd); 235 fw_size -= sizeof(*cmd); 236 237 if (fw_size < cmd->plen) { 238 bt_dev_err(hdev, "BCM: Patch is corrupted"); 239 err = -EINVAL; 240 goto done; 241 } 242 243 cmd_param = fw_ptr; 244 fw_ptr += cmd->plen; 245 fw_size -= cmd->plen; 246 247 opcode = le16_to_cpu(cmd->opcode); 248 249 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param, 250 HCI_INIT_TIMEOUT); 251 if (IS_ERR(skb)) { 252 err = PTR_ERR(skb); 253 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)", 254 opcode, err); 255 goto done; 256 } 257 kfree_skb(skb); 258 } 259 260 /* 250 msec delay after Launch Ram completes */ 261 msleep(250); 262 263 done: 264 return err; 265 } 266 EXPORT_SYMBOL(btbcm_patchram); 267 268 static int btbcm_reset(struct hci_dev *hdev) 269 { 270 struct sk_buff *skb; 271 272 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 273 if (IS_ERR(skb)) { 274 int err = PTR_ERR(skb); 275 276 bt_dev_err(hdev, "BCM: Reset failed (%d)", err); 277 return err; 278 } 279 kfree_skb(skb); 280 281 /* 100 msec delay for module to complete reset process */ 282 msleep(100); 283 284 return 0; 285 } 286 287 static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev) 288 { 289 struct sk_buff *skb; 290 291 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL, 292 HCI_INIT_TIMEOUT); 293 if (IS_ERR(skb)) { 294 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)", 295 PTR_ERR(skb)); 296 return skb; 297 } 298 299 if (skb->len != sizeof(struct hci_rp_read_local_name)) { 300 bt_dev_err(hdev, "BCM: Local name 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_local_version(struct hci_dev *hdev) 309 { 310 struct sk_buff *skb; 311 312 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 313 HCI_INIT_TIMEOUT); 314 if (IS_ERR(skb)) { 315 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)", 316 PTR_ERR(skb)); 317 return skb; 318 } 319 320 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 321 bt_dev_err(hdev, "BCM: Local version length mismatch"); 322 kfree_skb(skb); 323 return ERR_PTR(-EIO); 324 } 325 326 return skb; 327 } 328 329 static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev) 330 { 331 struct sk_buff *skb; 332 333 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT); 334 if (IS_ERR(skb)) { 335 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)", 336 PTR_ERR(skb)); 337 return skb; 338 } 339 340 if (skb->len != 7) { 341 bt_dev_err(hdev, "BCM: Verbose config length mismatch"); 342 kfree_skb(skb); 343 return ERR_PTR(-EIO); 344 } 345 346 return skb; 347 } 348 349 static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev) 350 { 351 struct sk_buff *skb; 352 353 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT); 354 if (IS_ERR(skb)) { 355 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)", 356 PTR_ERR(skb)); 357 return skb; 358 } 359 360 if (skb->len != 9) { 361 bt_dev_err(hdev, "BCM: Controller features length mismatch"); 362 kfree_skb(skb); 363 return ERR_PTR(-EIO); 364 } 365 366 return skb; 367 } 368 369 static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev) 370 { 371 struct sk_buff *skb; 372 373 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT); 374 if (IS_ERR(skb)) { 375 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)", 376 PTR_ERR(skb)); 377 return skb; 378 } 379 380 if (skb->len != 5) { 381 bt_dev_err(hdev, "BCM: USB product length mismatch"); 382 kfree_skb(skb); 383 return ERR_PTR(-EIO); 384 } 385 386 return skb; 387 } 388 389 static const struct dmi_system_id disable_broken_read_transmit_power[] = { 390 { 391 .matches = { 392 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 393 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"), 394 }, 395 }, 396 { 397 .matches = { 398 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 399 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"), 400 }, 401 }, 402 { 403 .matches = { 404 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 405 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"), 406 }, 407 }, 408 { 409 .matches = { 410 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 411 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"), 412 }, 413 }, 414 { 415 .matches = { 416 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 417 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"), 418 }, 419 }, 420 { 421 .matches = { 422 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 423 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"), 424 }, 425 }, 426 { 427 .matches = { 428 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 429 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"), 430 }, 431 }, 432 { } 433 }; 434 435 static int btbcm_read_info(struct hci_dev *hdev) 436 { 437 struct sk_buff *skb; 438 439 /* Read Verbose Config Version Info */ 440 skb = btbcm_read_verbose_config(hdev); 441 if (IS_ERR(skb)) 442 return PTR_ERR(skb); 443 444 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]); 445 kfree_skb(skb); 446 447 return 0; 448 } 449 450 static int btbcm_print_controller_features(struct hci_dev *hdev) 451 { 452 struct sk_buff *skb; 453 454 /* Read Controller Features */ 455 skb = btbcm_read_controller_features(hdev); 456 if (IS_ERR(skb)) 457 return PTR_ERR(skb); 458 459 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); 460 kfree_skb(skb); 461 462 /* Read DMI and disable broken Read LE Min/Max Tx Power */ 463 if (dmi_first_match(disable_broken_read_transmit_power)) 464 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 465 466 return 0; 467 } 468 469 static int btbcm_print_local_name(struct hci_dev *hdev) 470 { 471 struct sk_buff *skb; 472 473 /* Read Local Name */ 474 skb = btbcm_read_local_name(hdev); 475 if (IS_ERR(skb)) 476 return PTR_ERR(skb); 477 478 bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); 479 kfree_skb(skb); 480 481 return 0; 482 } 483 484 struct bcm_subver_table { 485 u16 subver; 486 const char *name; 487 }; 488 489 static const struct bcm_subver_table bcm_uart_subver_table[] = { 490 { 0x1111, "BCM4362A2" }, /* 000.017.017 */ 491 { 0x4103, "BCM4330B1" }, /* 002.001.003 */ 492 { 0x410d, "BCM4334B0" }, /* 002.001.013 */ 493 { 0x410e, "BCM43341B0" }, /* 002.001.014 */ 494 { 0x4204, "BCM2076B1" }, /* 002.002.004 */ 495 { 0x4406, "BCM4324B3" }, /* 002.004.006 */ 496 { 0x4606, "BCM4324B5" }, /* 002.006.006 */ 497 { 0x6109, "BCM4335C0" }, /* 003.001.009 */ 498 { 0x610c, "BCM4354" }, /* 003.001.012 */ 499 { 0x2122, "BCM4343A0" }, /* 001.001.034 */ 500 { 0x2209, "BCM43430A1" }, /* 001.002.009 */ 501 { 0x6119, "BCM4345C0" }, /* 003.001.025 */ 502 { 0x6606, "BCM4345C5" }, /* 003.006.006 */ 503 { 0x230f, "BCM4356A2" }, /* 001.003.015 */ 504 { 0x220e, "BCM20702A1" }, /* 001.002.014 */ 505 { 0x420d, "BCM4349B1" }, /* 002.002.013 */ 506 { 0x420e, "BCM4349B1" }, /* 002.002.014 */ 507 { 0x4217, "BCM4329B1" }, /* 002.002.023 */ 508 { 0x6106, "BCM4359C0" }, /* 003.001.006 */ 509 { 0x4106, "BCM4335A0" }, /* 002.001.006 */ 510 { 0x410c, "BCM43430B0" }, /* 002.001.012 */ 511 { 0x2119, "BCM4373A0" }, /* 001.001.025 */ 512 { } 513 }; 514 515 static const struct bcm_subver_table bcm_usb_subver_table[] = { 516 { 0x2105, "BCM20703A1" }, /* 001.001.005 */ 517 { 0x210b, "BCM43142A0" }, /* 001.001.011 */ 518 { 0x2112, "BCM4314A0" }, /* 001.001.018 */ 519 { 0x2118, "BCM20702A0" }, /* 001.001.024 */ 520 { 0x2126, "BCM4335A0" }, /* 001.001.038 */ 521 { 0x220e, "BCM20702A1" }, /* 001.002.014 */ 522 { 0x230f, "BCM4356A2" }, /* 001.003.015 */ 523 { 0x4106, "BCM4335B0" }, /* 002.001.006 */ 524 { 0x410e, "BCM20702B0" }, /* 002.001.014 */ 525 { 0x6109, "BCM4335C0" }, /* 003.001.009 */ 526 { 0x610c, "BCM4354" }, /* 003.001.012 */ 527 { 0x6607, "BCM4350C5" }, /* 003.006.007 */ 528 { } 529 }; 530 531 /* 532 * This currently only looks up the device tree board appendix, 533 * but can be expanded to other mechanisms. 534 */ 535 static const char *btbcm_get_board_name(struct device *dev) 536 { 537 #ifdef CONFIG_OF 538 struct device_node *root; 539 char *board_type; 540 const char *tmp; 541 int len; 542 int i; 543 544 root = of_find_node_by_path("/"); 545 if (!root) 546 return NULL; 547 548 if (of_property_read_string_index(root, "compatible", 0, &tmp)) 549 return NULL; 550 551 /* get rid of any '/' in the compatible string */ 552 len = strlen(tmp) + 1; 553 board_type = devm_kzalloc(dev, len, GFP_KERNEL); 554 strscpy(board_type, tmp, len); 555 for (i = 0; i < len; i++) { 556 if (board_type[i] == '/') 557 board_type[i] = '-'; 558 } 559 of_node_put(root); 560 561 return board_type; 562 #else 563 return NULL; 564 #endif 565 } 566 567 int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode) 568 { 569 u16 subver, rev, pid, vid; 570 struct sk_buff *skb; 571 struct hci_rp_read_local_version *ver; 572 const struct bcm_subver_table *bcm_subver_table; 573 const char *hw_name = NULL; 574 const char *board_name; 575 char postfix[16] = ""; 576 int fw_name_count = 0; 577 bcm_fw_name *fw_name; 578 const struct firmware *fw; 579 int i, err; 580 581 board_name = btbcm_get_board_name(&hdev->dev); 582 583 /* Reset */ 584 err = btbcm_reset(hdev); 585 if (err) 586 return err; 587 588 /* Read Local Version Info */ 589 skb = btbcm_read_local_version(hdev); 590 if (IS_ERR(skb)) 591 return PTR_ERR(skb); 592 593 ver = (struct hci_rp_read_local_version *)skb->data; 594 rev = le16_to_cpu(ver->hci_rev); 595 subver = le16_to_cpu(ver->lmp_subver); 596 kfree_skb(skb); 597 598 /* Read controller information */ 599 if (!(*fw_load_done)) { 600 err = btbcm_read_info(hdev); 601 if (err) 602 return err; 603 } 604 605 if (!use_autobaud_mode) { 606 err = btbcm_print_controller_features(hdev); 607 if (err) 608 return err; 609 610 err = btbcm_print_local_name(hdev); 611 if (err) 612 return err; 613 } 614 615 bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table : 616 bcm_uart_subver_table; 617 618 for (i = 0; bcm_subver_table[i].name; i++) { 619 if (subver == bcm_subver_table[i].subver) { 620 hw_name = bcm_subver_table[i].name; 621 break; 622 } 623 } 624 625 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u", 626 hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13, 627 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); 628 629 if (*fw_load_done) 630 return 0; 631 632 if (hdev->bus == HCI_USB) { 633 /* Read USB Product Info */ 634 skb = btbcm_read_usb_product(hdev); 635 if (IS_ERR(skb)) 636 return PTR_ERR(skb); 637 638 vid = get_unaligned_le16(skb->data + 1); 639 pid = get_unaligned_le16(skb->data + 3); 640 kfree_skb(skb); 641 642 snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid); 643 } 644 645 fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL); 646 if (!fw_name) 647 return -ENOMEM; 648 649 if (hw_name) { 650 if (board_name) { 651 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 652 "brcm/%s%s.%s.hcd", hw_name, postfix, board_name); 653 fw_name_count++; 654 } 655 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 656 "brcm/%s%s.hcd", hw_name, postfix); 657 fw_name_count++; 658 } 659 660 if (board_name) { 661 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 662 "brcm/BCM%s.%s.hcd", postfix, board_name); 663 fw_name_count++; 664 } 665 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 666 "brcm/BCM%s.hcd", postfix); 667 fw_name_count++; 668 669 for (i = 0; i < fw_name_count; i++) { 670 err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev); 671 if (err == 0) { 672 bt_dev_info(hdev, "%s '%s' Patch", 673 hw_name ? hw_name : "BCM", fw_name[i]); 674 *fw_load_done = true; 675 break; 676 } 677 } 678 679 if (*fw_load_done) { 680 err = btbcm_patchram(hdev, fw); 681 if (err) 682 bt_dev_info(hdev, "BCM: Patch failed (%d)", err); 683 684 release_firmware(fw); 685 } else { 686 bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:"); 687 for (i = 0; i < fw_name_count; i++) 688 bt_dev_err(hdev, "BCM: '%s'", fw_name[i]); 689 } 690 691 kfree(fw_name); 692 return 0; 693 } 694 EXPORT_SYMBOL_GPL(btbcm_initialize); 695 696 int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode) 697 { 698 int err; 699 700 /* Re-initialize if necessary */ 701 if (*fw_load_done) { 702 err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode); 703 if (err) 704 return err; 705 } 706 707 btbcm_check_bdaddr(hdev); 708 709 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 710 711 return 0; 712 } 713 EXPORT_SYMBOL_GPL(btbcm_finalize); 714 715 int btbcm_setup_patchram(struct hci_dev *hdev) 716 { 717 bool fw_load_done = false; 718 bool use_autobaud_mode = false; 719 int err; 720 721 /* Initialize */ 722 err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode); 723 if (err) 724 return err; 725 726 /* Re-initialize after loading Patch */ 727 return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode); 728 } 729 EXPORT_SYMBOL_GPL(btbcm_setup_patchram); 730 731 int btbcm_setup_apple(struct hci_dev *hdev) 732 { 733 struct sk_buff *skb; 734 int err; 735 736 /* Reset */ 737 err = btbcm_reset(hdev); 738 if (err) 739 return err; 740 741 /* Read Verbose Config Version Info */ 742 skb = btbcm_read_verbose_config(hdev); 743 if (!IS_ERR(skb)) { 744 bt_dev_info(hdev, "BCM: chip id %u build %4.4u", 745 skb->data[1], get_unaligned_le16(skb->data + 5)); 746 kfree_skb(skb); 747 } 748 749 /* Read USB Product Info */ 750 skb = btbcm_read_usb_product(hdev); 751 if (!IS_ERR(skb)) { 752 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x", 753 get_unaligned_le16(skb->data + 1), 754 get_unaligned_le16(skb->data + 3)); 755 kfree_skb(skb); 756 } 757 758 /* Read Controller Features */ 759 skb = btbcm_read_controller_features(hdev); 760 if (!IS_ERR(skb)) { 761 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); 762 kfree_skb(skb); 763 } 764 765 /* Read Local Name */ 766 skb = btbcm_read_local_name(hdev); 767 if (!IS_ERR(skb)) { 768 bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); 769 kfree_skb(skb); 770 } 771 772 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 773 774 return 0; 775 } 776 EXPORT_SYMBOL_GPL(btbcm_setup_apple); 777 778 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 779 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION); 780 MODULE_VERSION(VERSION); 781 MODULE_LICENSE("GPL"); 782