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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/efi.h>
10#include <linux/module.h>
11#include <linux/firmware.h>
12#include <linux/dmi.h>
13#include <linux/of.h>
14#include <linux/string.h>
15#include <linux/unaligned.h>
16
17#include <net/bluetooth/bluetooth.h>
18#include <net/bluetooth/hci_core.h>
19
20#include "btbcm.h"
21
22#define VERSION "0.1"
23
24#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
25#define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
26#define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
27#define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
28#define BDADDR_BCM43430A1 (&(bdaddr_t) {{0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}})
29#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
30#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
31#define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})
32#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
33#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
34
35#define BCM_FW_NAME_LEN 64
36#define BCM_FW_NAME_COUNT_MAX 4
37/* For kmalloc-ing the fw-name array instead of putting it on the stack */
38typedef char bcm_fw_name[BCM_FW_NAME_LEN];
39
40#ifdef CONFIG_EFI
41static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)
42{
43 efi_guid_t guid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61, 0xb5, 0x1f,
44 0x43, 0x26, 0x81, 0x23, 0xd1, 0x13);
45 bdaddr_t efi_bdaddr, bdaddr;
46 efi_status_t status;
47 unsigned long len;
48 int ret;
49
50 if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))
51 return -EOPNOTSUPP;
52
53 len = sizeof(efi_bdaddr);
54 status = efi.get_variable(L"BDADDR", &guid, NULL, &len, &efi_bdaddr);
55 if (status != EFI_SUCCESS)
56 return -ENXIO;
57
58 if (len != sizeof(efi_bdaddr))
59 return -EIO;
60
61 baswap(&bdaddr, &efi_bdaddr);
62
63 ret = btbcm_set_bdaddr(hdev, &bdaddr);
64 if (ret)
65 return ret;
66
67 bt_dev_info(hdev, "BCM: Using EFI device address (%pMR)", &bdaddr);
68 return 0;
69}
70#else
71static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)
72{
73 return -EOPNOTSUPP;
74}
75#endif
76
77int btbcm_check_bdaddr(struct hci_dev *hdev)
78{
79 struct hci_rp_read_bd_addr *bda;
80 struct sk_buff *skb;
81
82 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
83 HCI_INIT_TIMEOUT);
84 if (IS_ERR(skb)) {
85 int err = PTR_ERR(skb);
86
87 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
88 return err;
89 }
90
91 if (skb->len != sizeof(*bda)) {
92 bt_dev_err(hdev, "BCM: Device address length mismatch");
93 kfree_skb(skb);
94 return -EIO;
95 }
96
97 bda = (struct hci_rp_read_bd_addr *)skb->data;
98
99 /* Check if the address indicates a controller with either an
100 * invalid or default address. In both cases the device needs
101 * to be marked as not having a valid address.
102 *
103 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
104 * with no configured address.
105 *
106 * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller
107 * with no configured address.
108 *
109 * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller
110 * with no configured address.
111 *
112 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
113 * with waiting for configuration state.
114 *
115 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
116 * with waiting for configuration state.
117 *
118 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
119 * with no configured address.
120 *
121 * The address AA:AA:AA:AA:AA:AA indicates a BCM43430A1 controller
122 * with no configured address.
123 */
124 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
125 !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
126 !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
127 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
128 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
129 !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||
130 !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
131 !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
132 !bacmp(&bda->bdaddr, BDADDR_BCM43430A1) ||
133 !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
134 /* Try falling back to BDADDR EFI variable */
135 if (btbcm_set_bdaddr_from_efi(hdev) != 0) {
136 bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
137 &bda->bdaddr);
138 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
139 }
140 }
141
142 kfree_skb(skb);
143
144 return 0;
145}
146EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
147
148int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
149{
150 struct sk_buff *skb;
151 int err;
152
153 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
154 if (IS_ERR(skb)) {
155 err = PTR_ERR(skb);
156 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
157 return err;
158 }
159 kfree_skb(skb);
160
161 return 0;
162}
163EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
164
165int btbcm_read_pcm_int_params(struct hci_dev *hdev,
166 struct bcm_set_pcm_int_params *params)
167{
168 struct sk_buff *skb;
169 int err = 0;
170
171 skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
172 if (IS_ERR(skb)) {
173 err = PTR_ERR(skb);
174 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
175 return err;
176 }
177
178 if (skb->len != 6 || skb->data[0]) {
179 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
180 kfree_skb(skb);
181 return -EIO;
182 }
183
184 if (params)
185 memcpy(params, skb->data + 1, 5);
186
187 kfree_skb(skb);
188
189 return 0;
190}
191EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
192
193int btbcm_write_pcm_int_params(struct hci_dev *hdev,
194 const struct bcm_set_pcm_int_params *params)
195{
196 struct sk_buff *skb;
197 int err;
198
199 skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
200 if (IS_ERR(skb)) {
201 err = PTR_ERR(skb);
202 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
203 return err;
204 }
205 kfree_skb(skb);
206
207 return 0;
208}
209EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
210
211int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
212{
213 const struct hci_command_hdr *cmd;
214 const u8 *fw_ptr;
215 size_t fw_size;
216 struct sk_buff *skb;
217 u16 opcode;
218 int err = 0;
219
220 /* Start Download */
221 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
222 if (IS_ERR(skb)) {
223 err = PTR_ERR(skb);
224 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
225 err);
226 goto done;
227 }
228 kfree_skb(skb);
229
230 /* 50 msec delay after Download Minidrv completes */
231 msleep(50);
232
233 fw_ptr = fw->data;
234 fw_size = fw->size;
235
236 while (fw_size >= sizeof(*cmd)) {
237 const u8 *cmd_param;
238
239 cmd = (struct hci_command_hdr *)fw_ptr;
240 fw_ptr += sizeof(*cmd);
241 fw_size -= sizeof(*cmd);
242
243 if (fw_size < cmd->plen) {
244 bt_dev_err(hdev, "BCM: Patch is corrupted");
245 err = -EINVAL;
246 goto done;
247 }
248
249 cmd_param = fw_ptr;
250 fw_ptr += cmd->plen;
251 fw_size -= cmd->plen;
252
253 opcode = le16_to_cpu(cmd->opcode);
254
255 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
256 HCI_INIT_TIMEOUT);
257 if (IS_ERR(skb)) {
258 err = PTR_ERR(skb);
259 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
260 opcode, err);
261 goto done;
262 }
263 kfree_skb(skb);
264 }
265
266 /* 250 msec delay after Launch Ram completes */
267 msleep(250);
268
269done:
270 return err;
271}
272EXPORT_SYMBOL(btbcm_patchram);
273
274static int btbcm_reset(struct hci_dev *hdev)
275{
276 struct sk_buff *skb;
277
278 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
279 if (IS_ERR(skb)) {
280 int err = PTR_ERR(skb);
281
282 bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
283 return err;
284 }
285 kfree_skb(skb);
286
287 /* 100 msec delay for module to complete reset process */
288 msleep(100);
289
290 return 0;
291}
292
293static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
294{
295 struct sk_buff *skb;
296
297 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
298 HCI_INIT_TIMEOUT);
299 if (IS_ERR(skb)) {
300 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
301 PTR_ERR(skb));
302 return skb;
303 }
304
305 if (skb->len != sizeof(struct hci_rp_read_local_name)) {
306 bt_dev_err(hdev, "BCM: Local name length mismatch");
307 kfree_skb(skb);
308 return ERR_PTR(-EIO);
309 }
310
311 return skb;
312}
313
314static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
315{
316 struct sk_buff *skb;
317
318 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
319 HCI_INIT_TIMEOUT);
320 if (IS_ERR(skb)) {
321 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
322 PTR_ERR(skb));
323 return skb;
324 }
325
326 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
327 bt_dev_err(hdev, "BCM: Local version length mismatch");
328 kfree_skb(skb);
329 return ERR_PTR(-EIO);
330 }
331
332 return skb;
333}
334
335static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
336{
337 struct sk_buff *skb;
338
339 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
340 if (IS_ERR(skb)) {
341 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
342 PTR_ERR(skb));
343 return skb;
344 }
345
346 if (skb->len != 7) {
347 bt_dev_err(hdev, "BCM: Verbose config length mismatch");
348 kfree_skb(skb);
349 return ERR_PTR(-EIO);
350 }
351
352 return skb;
353}
354
355static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
356{
357 struct sk_buff *skb;
358
359 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
360 if (IS_ERR(skb)) {
361 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
362 PTR_ERR(skb));
363 return skb;
364 }
365
366 if (skb->len != 9) {
367 bt_dev_err(hdev, "BCM: Controller features length mismatch");
368 kfree_skb(skb);
369 return ERR_PTR(-EIO);
370 }
371
372 return skb;
373}
374
375static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
376{
377 struct sk_buff *skb;
378
379 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
380 if (IS_ERR(skb)) {
381 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
382 PTR_ERR(skb));
383 return skb;
384 }
385
386 if (skb->len != 5) {
387 bt_dev_err(hdev, "BCM: USB product length mismatch");
388 kfree_skb(skb);
389 return ERR_PTR(-EIO);
390 }
391
392 return skb;
393}
394
395static const struct dmi_system_id disable_broken_read_transmit_power[] = {
396 {
397 .matches = {
398 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
399 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"),
400 },
401 },
402 {
403 .matches = {
404 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
405 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"),
406 },
407 },
408 {
409 .matches = {
410 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
411 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"),
412 },
413 },
414 {
415 .matches = {
416 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
417 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"),
418 },
419 },
420 {
421 .matches = {
422 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
423 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"),
424 },
425 },
426 {
427 .matches = {
428 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
429 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"),
430 },
431 },
432 {
433 .matches = {
434 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
435 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"),
436 },
437 },
438 { }
439};
440
441static int btbcm_read_info(struct hci_dev *hdev)
442{
443 struct sk_buff *skb;
444
445 /* Read Verbose Config Version Info */
446 skb = btbcm_read_verbose_config(hdev);
447 if (IS_ERR(skb))
448 return PTR_ERR(skb);
449
450 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
451 kfree_skb(skb);
452
453 return 0;
454}
455
456static int btbcm_print_controller_features(struct hci_dev *hdev)
457{
458 struct sk_buff *skb;
459
460 /* Read Controller Features */
461 skb = btbcm_read_controller_features(hdev);
462 if (IS_ERR(skb))
463 return PTR_ERR(skb);
464
465 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
466 kfree_skb(skb);
467
468 /* Read DMI and disable broken Read LE Min/Max Tx Power */
469 if (dmi_first_match(disable_broken_read_transmit_power))
470 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
471
472 return 0;
473}
474
475static int btbcm_print_local_name(struct hci_dev *hdev)
476{
477 struct sk_buff *skb;
478
479 /* Read Local Name */
480 skb = btbcm_read_local_name(hdev);
481 if (IS_ERR(skb))
482 return PTR_ERR(skb);
483
484 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
485 kfree_skb(skb);
486
487 return 0;
488}
489
490struct bcm_subver_table {
491 u16 subver;
492 const char *name;
493};
494
495static const struct bcm_subver_table bcm_uart_subver_table[] = {
496 { 0x1111, "BCM4362A2" }, /* 000.017.017 */
497 { 0x4103, "BCM4330B1" }, /* 002.001.003 */
498 { 0x410d, "BCM4334B0" }, /* 002.001.013 */
499 { 0x410e, "BCM43341B0" }, /* 002.001.014 */
500 { 0x4204, "BCM2076B1" }, /* 002.002.004 */
501 { 0x4406, "BCM4324B3" }, /* 002.004.006 */
502 { 0x4606, "BCM4324B5" }, /* 002.006.006 */
503 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
504 { 0x610c, "BCM4354" }, /* 003.001.012 */
505 { 0x2122, "BCM4343A0" }, /* 001.001.034 */
506 { 0x2209, "BCM43430A1" }, /* 001.002.009 */
507 { 0x6119, "BCM4345C0" }, /* 003.001.025 */
508 { 0x6606, "BCM4345C5" }, /* 003.006.006 */
509 { 0x230f, "BCM4356A2" }, /* 001.003.015 */
510 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
511 { 0x420d, "BCM4349B1" }, /* 002.002.013 */
512 { 0x420e, "BCM4349B1" }, /* 002.002.014 */
513 { 0x4217, "BCM4329B1" }, /* 002.002.023 */
514 { 0x6106, "BCM4359C0" }, /* 003.001.006 */
515 { 0x4106, "BCM4335A0" }, /* 002.001.006 */
516 { 0x410c, "BCM43430B0" }, /* 002.001.012 */
517 { 0x2119, "BCM4373A0" }, /* 001.001.025 */
518 { }
519};
520
521static const struct bcm_subver_table bcm_usb_subver_table[] = {
522 { 0x2105, "BCM20703A1" }, /* 001.001.005 */
523 { 0x210b, "BCM43142A0" }, /* 001.001.011 */
524 { 0x2112, "BCM4314A0" }, /* 001.001.018 */
525 { 0x2118, "BCM20702A0" }, /* 001.001.024 */
526 { 0x2126, "BCM4335A0" }, /* 001.001.038 */
527 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
528 { 0x230f, "BCM4356A2" }, /* 001.003.015 */
529 { 0x4106, "BCM4335B0" }, /* 002.001.006 */
530 { 0x410e, "BCM20702B0" }, /* 002.001.014 */
531 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
532 { 0x610c, "BCM4354" }, /* 003.001.012 */
533 { 0x6607, "BCM4350C5" }, /* 003.006.007 */
534 { }
535};
536
537/*
538 * This currently only looks up the device tree board appendix,
539 * but can be expanded to other mechanisms.
540 */
541static const char *btbcm_get_board_name(struct device *dev)
542{
543#ifdef CONFIG_OF
544 struct device_node *root __free(device_node) = of_find_node_by_path("/");
545 char *board_type;
546 const char *tmp;
547
548 if (!root)
549 return NULL;
550
551 if (of_property_read_string_index(root, "compatible", 0, &tmp))
552 return NULL;
553
554 /* get rid of any '/' in the compatible string */
555 board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
556 if (!board_type)
557 return NULL;
558
559 strreplace(board_type, '/', '-');
560
561 return board_type;
562#else
563 return NULL;
564#endif
565}
566
567int 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}
694EXPORT_SYMBOL_GPL(btbcm_initialize);
695
696int 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}
713EXPORT_SYMBOL_GPL(btbcm_finalize);
714
715int 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}
729EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
730
731int 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}
776EXPORT_SYMBOL_GPL(btbcm_setup_apple);
777
778MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
779MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
780MODULE_VERSION(VERSION);
781MODULE_LICENSE("GPL");
1/*
2 *
3 * Bluetooth support for Broadcom devices
4 *
5 * Copyright (C) 2015 Intel Corporation
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#include <linux/module.h>
25#include <linux/firmware.h>
26#include <asm/unaligned.h>
27
28#include <net/bluetooth/bluetooth.h>
29#include <net/bluetooth/hci_core.h>
30
31#include "btbcm.h"
32
33#define VERSION "0.1"
34
35#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
36#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
37#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
38
39int btbcm_check_bdaddr(struct hci_dev *hdev)
40{
41 struct hci_rp_read_bd_addr *bda;
42 struct sk_buff *skb;
43
44 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
45 HCI_INIT_TIMEOUT);
46 if (IS_ERR(skb)) {
47 int err = PTR_ERR(skb);
48 BT_ERR("%s: BCM: Reading device address failed (%d)",
49 hdev->name, err);
50 return err;
51 }
52
53 if (skb->len != sizeof(*bda)) {
54 BT_ERR("%s: BCM: Device address length mismatch", hdev->name);
55 kfree_skb(skb);
56 return -EIO;
57 }
58
59 bda = (struct hci_rp_read_bd_addr *)skb->data;
60
61 /* Check if the address indicates a controller with either an
62 * invalid or default address. In both cases the device needs
63 * to be marked as not having a valid address.
64 *
65 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
66 * with no configured address.
67 *
68 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
69 * with waiting for configuration state.
70 *
71 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
72 * with waiting for configuration state.
73 */
74 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
75 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
76 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1)) {
77 BT_INFO("%s: BCM: Using default device address (%pMR)",
78 hdev->name, &bda->bdaddr);
79 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
80 }
81
82 kfree_skb(skb);
83
84 return 0;
85}
86EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
87
88int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
89{
90 struct sk_buff *skb;
91 int err;
92
93 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
94 if (IS_ERR(skb)) {
95 err = PTR_ERR(skb);
96 BT_ERR("%s: BCM: Change address command failed (%d)",
97 hdev->name, err);
98 return err;
99 }
100 kfree_skb(skb);
101
102 return 0;
103}
104EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
105
106int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
107{
108 const struct hci_command_hdr *cmd;
109 const u8 *fw_ptr;
110 size_t fw_size;
111 struct sk_buff *skb;
112 u16 opcode;
113 int err = 0;
114
115 /* Start Download */
116 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
117 if (IS_ERR(skb)) {
118 err = PTR_ERR(skb);
119 BT_ERR("%s: BCM: Download Minidrv command failed (%d)",
120 hdev->name, err);
121 goto done;
122 }
123 kfree_skb(skb);
124
125 /* 50 msec delay after Download Minidrv completes */
126 msleep(50);
127
128 fw_ptr = fw->data;
129 fw_size = fw->size;
130
131 while (fw_size >= sizeof(*cmd)) {
132 const u8 *cmd_param;
133
134 cmd = (struct hci_command_hdr *)fw_ptr;
135 fw_ptr += sizeof(*cmd);
136 fw_size -= sizeof(*cmd);
137
138 if (fw_size < cmd->plen) {
139 BT_ERR("%s: BCM: Patch is corrupted", hdev->name);
140 err = -EINVAL;
141 goto done;
142 }
143
144 cmd_param = fw_ptr;
145 fw_ptr += cmd->plen;
146 fw_size -= cmd->plen;
147
148 opcode = le16_to_cpu(cmd->opcode);
149
150 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
151 HCI_INIT_TIMEOUT);
152 if (IS_ERR(skb)) {
153 err = PTR_ERR(skb);
154 BT_ERR("%s: BCM: Patch command %04x failed (%d)",
155 hdev->name, opcode, err);
156 goto done;
157 }
158 kfree_skb(skb);
159 }
160
161 /* 250 msec delay after Launch Ram completes */
162 msleep(250);
163
164done:
165 return err;
166}
167EXPORT_SYMBOL(btbcm_patchram);
168
169static int btbcm_reset(struct hci_dev *hdev)
170{
171 struct sk_buff *skb;
172
173 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
174 if (IS_ERR(skb)) {
175 int err = PTR_ERR(skb);
176 BT_ERR("%s: BCM: Reset failed (%d)", hdev->name, err);
177 return err;
178 }
179 kfree_skb(skb);
180
181 return 0;
182}
183
184static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
185{
186 struct sk_buff *skb;
187
188 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
189 HCI_INIT_TIMEOUT);
190 if (IS_ERR(skb)) {
191 BT_ERR("%s: BCM: Reading local name failed (%ld)",
192 hdev->name, PTR_ERR(skb));
193 return skb;
194 }
195
196 if (skb->len != sizeof(struct hci_rp_read_local_name)) {
197 BT_ERR("%s: BCM: Local name length mismatch", hdev->name);
198 kfree_skb(skb);
199 return ERR_PTR(-EIO);
200 }
201
202 return skb;
203}
204
205static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
206{
207 struct sk_buff *skb;
208
209 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
210 HCI_INIT_TIMEOUT);
211 if (IS_ERR(skb)) {
212 BT_ERR("%s: BCM: Reading local version info failed (%ld)",
213 hdev->name, PTR_ERR(skb));
214 return skb;
215 }
216
217 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
218 BT_ERR("%s: BCM: Local version length mismatch", hdev->name);
219 kfree_skb(skb);
220 return ERR_PTR(-EIO);
221 }
222
223 return skb;
224}
225
226static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
227{
228 struct sk_buff *skb;
229
230 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
231 if (IS_ERR(skb)) {
232 BT_ERR("%s: BCM: Read verbose config info failed (%ld)",
233 hdev->name, PTR_ERR(skb));
234 return skb;
235 }
236
237 if (skb->len != 7) {
238 BT_ERR("%s: BCM: Verbose config length mismatch", hdev->name);
239 kfree_skb(skb);
240 return ERR_PTR(-EIO);
241 }
242
243 return skb;
244}
245
246static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
247{
248 struct sk_buff *skb;
249
250 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
251 if (IS_ERR(skb)) {
252 BT_ERR("%s: BCM: Read USB product info failed (%ld)",
253 hdev->name, PTR_ERR(skb));
254 return skb;
255 }
256
257 if (skb->len != 5) {
258 BT_ERR("%s: BCM: USB product length mismatch", hdev->name);
259 kfree_skb(skb);
260 return ERR_PTR(-EIO);
261 }
262
263 return skb;
264}
265
266static const struct {
267 u16 subver;
268 const char *name;
269} bcm_uart_subver_table[] = {
270 { 0x4103, "BCM4330B1" }, /* 002.001.003 */
271 { 0x410e, "BCM43341B0" }, /* 002.001.014 */
272 { 0x4406, "BCM4324B3" }, /* 002.004.006 */
273 { 0x610c, "BCM4354" }, /* 003.001.012 */
274 { }
275};
276
277int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len)
278{
279 u16 subver, rev;
280 const char *hw_name = NULL;
281 struct sk_buff *skb;
282 struct hci_rp_read_local_version *ver;
283 int i, err;
284
285 /* Reset */
286 err = btbcm_reset(hdev);
287 if (err)
288 return err;
289
290 /* Read Local Version Info */
291 skb = btbcm_read_local_version(hdev);
292 if (IS_ERR(skb))
293 return PTR_ERR(skb);
294
295 ver = (struct hci_rp_read_local_version *)skb->data;
296 rev = le16_to_cpu(ver->hci_rev);
297 subver = le16_to_cpu(ver->lmp_subver);
298 kfree_skb(skb);
299
300 /* Read Verbose Config Version Info */
301 skb = btbcm_read_verbose_config(hdev);
302 if (IS_ERR(skb))
303 return PTR_ERR(skb);
304
305 BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]);
306 kfree_skb(skb);
307
308 switch ((rev & 0xf000) >> 12) {
309 case 0:
310 case 1:
311 case 3:
312 for (i = 0; bcm_uart_subver_table[i].name; i++) {
313 if (subver == bcm_uart_subver_table[i].subver) {
314 hw_name = bcm_uart_subver_table[i].name;
315 break;
316 }
317 }
318
319 snprintf(fw_name, len, "brcm/%s.hcd", hw_name ? : "BCM");
320 break;
321 default:
322 return 0;
323 }
324
325 BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
326 hw_name ? : "BCM", (subver & 0xe000) >> 13,
327 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
328
329 return 0;
330}
331EXPORT_SYMBOL_GPL(btbcm_initialize);
332
333int btbcm_finalize(struct hci_dev *hdev)
334{
335 struct sk_buff *skb;
336 struct hci_rp_read_local_version *ver;
337 u16 subver, rev;
338 int err;
339
340 /* Reset */
341 err = btbcm_reset(hdev);
342 if (err)
343 return err;
344
345 /* Read Local Version Info */
346 skb = btbcm_read_local_version(hdev);
347 if (IS_ERR(skb))
348 return PTR_ERR(skb);
349
350 ver = (struct hci_rp_read_local_version *)skb->data;
351 rev = le16_to_cpu(ver->hci_rev);
352 subver = le16_to_cpu(ver->lmp_subver);
353 kfree_skb(skb);
354
355 BT_INFO("%s: BCM (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
356 (subver & 0xe000) >> 13, (subver & 0x1f00) >> 8,
357 (subver & 0x00ff), rev & 0x0fff);
358
359 btbcm_check_bdaddr(hdev);
360
361 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
362
363 return 0;
364}
365EXPORT_SYMBOL_GPL(btbcm_finalize);
366
367static const struct {
368 u16 subver;
369 const char *name;
370} bcm_usb_subver_table[] = {
371 { 0x210b, "BCM43142A0" }, /* 001.001.011 */
372 { 0x2112, "BCM4314A0" }, /* 001.001.018 */
373 { 0x2118, "BCM20702A0" }, /* 001.001.024 */
374 { 0x2126, "BCM4335A0" }, /* 001.001.038 */
375 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
376 { 0x230f, "BCM4354A2" }, /* 001.003.015 */
377 { 0x4106, "BCM4335B0" }, /* 002.001.006 */
378 { 0x410e, "BCM20702B0" }, /* 002.001.014 */
379 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
380 { 0x610c, "BCM4354" }, /* 003.001.012 */
381 { }
382};
383
384int btbcm_setup_patchram(struct hci_dev *hdev)
385{
386 char fw_name[64];
387 const struct firmware *fw;
388 u16 subver, rev, pid, vid;
389 const char *hw_name = NULL;
390 struct sk_buff *skb;
391 struct hci_rp_read_local_version *ver;
392 int i, err;
393
394 /* Reset */
395 err = btbcm_reset(hdev);
396 if (err)
397 return err;
398
399 /* Read Local Version Info */
400 skb = btbcm_read_local_version(hdev);
401 if (IS_ERR(skb))
402 return PTR_ERR(skb);
403
404 ver = (struct hci_rp_read_local_version *)skb->data;
405 rev = le16_to_cpu(ver->hci_rev);
406 subver = le16_to_cpu(ver->lmp_subver);
407 kfree_skb(skb);
408
409 /* Read Verbose Config Version Info */
410 skb = btbcm_read_verbose_config(hdev);
411 if (IS_ERR(skb))
412 return PTR_ERR(skb);
413
414 BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]);
415 kfree_skb(skb);
416
417 /* Read Local Name */
418 skb = btbcm_read_local_name(hdev);
419 if (IS_ERR(skb))
420 return PTR_ERR(skb);
421
422 BT_INFO("%s: %s", hdev->name, (char *)(skb->data + 1));
423 kfree_skb(skb);
424
425 switch ((rev & 0xf000) >> 12) {
426 case 0:
427 case 3:
428 for (i = 0; bcm_uart_subver_table[i].name; i++) {
429 if (subver == bcm_uart_subver_table[i].subver) {
430 hw_name = bcm_uart_subver_table[i].name;
431 break;
432 }
433 }
434
435 snprintf(fw_name, sizeof(fw_name), "brcm/%s.hcd",
436 hw_name ? : "BCM");
437 break;
438 case 1:
439 case 2:
440 /* Read USB Product Info */
441 skb = btbcm_read_usb_product(hdev);
442 if (IS_ERR(skb))
443 return PTR_ERR(skb);
444
445 vid = get_unaligned_le16(skb->data + 1);
446 pid = get_unaligned_le16(skb->data + 3);
447 kfree_skb(skb);
448
449 for (i = 0; bcm_usb_subver_table[i].name; i++) {
450 if (subver == bcm_usb_subver_table[i].subver) {
451 hw_name = bcm_usb_subver_table[i].name;
452 break;
453 }
454 }
455
456 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%4.4x-%4.4x.hcd",
457 hw_name ? : "BCM", vid, pid);
458 break;
459 default:
460 return 0;
461 }
462
463 BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
464 hw_name ? : "BCM", (subver & 0xe000) >> 13,
465 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
466
467 err = request_firmware(&fw, fw_name, &hdev->dev);
468 if (err < 0) {
469 BT_INFO("%s: BCM: Patch %s not found", hdev->name, fw_name);
470 goto done;
471 }
472
473 btbcm_patchram(hdev, fw);
474
475 release_firmware(fw);
476
477 /* Reset */
478 err = btbcm_reset(hdev);
479 if (err)
480 return err;
481
482 /* Read Local Version Info */
483 skb = btbcm_read_local_version(hdev);
484 if (IS_ERR(skb))
485 return PTR_ERR(skb);
486
487 ver = (struct hci_rp_read_local_version *)skb->data;
488 rev = le16_to_cpu(ver->hci_rev);
489 subver = le16_to_cpu(ver->lmp_subver);
490 kfree_skb(skb);
491
492 BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
493 hw_name ? : "BCM", (subver & 0xe000) >> 13,
494 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
495
496 /* Read Local Name */
497 skb = btbcm_read_local_name(hdev);
498 if (IS_ERR(skb))
499 return PTR_ERR(skb);
500
501 BT_INFO("%s: %s", hdev->name, (char *)(skb->data + 1));
502 kfree_skb(skb);
503
504done:
505 btbcm_check_bdaddr(hdev);
506
507 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
508
509 return 0;
510}
511EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
512
513int btbcm_setup_apple(struct hci_dev *hdev)
514{
515 struct sk_buff *skb;
516 int err;
517
518 /* Reset */
519 err = btbcm_reset(hdev);
520 if (err)
521 return err;
522
523 /* Read Verbose Config Version Info */
524 skb = btbcm_read_verbose_config(hdev);
525 if (!IS_ERR(skb)) {
526 BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name,
527 skb->data[1], get_unaligned_le16(skb->data + 5));
528 kfree_skb(skb);
529 }
530
531 /* Read USB Product Info */
532 skb = btbcm_read_usb_product(hdev);
533 if (!IS_ERR(skb)) {
534 BT_INFO("%s: BCM: product %4.4x:%4.4x", hdev->name,
535 get_unaligned_le16(skb->data + 1),
536 get_unaligned_le16(skb->data + 3));
537 kfree_skb(skb);
538 }
539
540 /* Read Local Name */
541 skb = btbcm_read_local_name(hdev);
542 if (!IS_ERR(skb)) {
543 BT_INFO("%s: %s", hdev->name, (char *)(skb->data + 1));
544 kfree_skb(skb);
545 }
546
547 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
548
549 return 0;
550}
551EXPORT_SYMBOL_GPL(btbcm_setup_apple);
552
553MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
554MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
555MODULE_VERSION(VERSION);
556MODULE_LICENSE("GPL");