drivers/bluetooth/btbcm.c

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