linux/drivers/bluetooth/btbcm.c
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   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 */
  33typedef char bcm_fw_name[BCM_FW_NAME_LEN];
  34
  35int 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}
  97EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
  98
  99int 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}
 114EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
 115
 116int 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}
 142EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
 143
 144int 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}
 160EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
 161
 162int 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
 220done:
 221        return err;
 222}
 223EXPORT_SYMBOL(btbcm_patchram);
 224
 225static 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
 244static 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
 265static 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
 286static 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
 306static 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
 326static 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
 346static 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
 369static 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
 384struct bcm_subver_table {
 385        u16 subver;
 386        const char *name;
 387};
 388
 389static 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
 411static 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
 427int 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}
 534EXPORT_SYMBOL_GPL(btbcm_initialize);
 535
 536int 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}
 553EXPORT_SYMBOL_GPL(btbcm_finalize);
 554
 555int 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}
 568EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
 569
 570int 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}
 615EXPORT_SYMBOL_GPL(btbcm_setup_apple);
 616
 617MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
 618MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
 619MODULE_VERSION(VERSION);
 620MODULE_LICENSE("GPL");
 621