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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 */
33 typedef char bcm_fw_name[BCM_FW_NAME_LEN];
34 
btbcm_check_bdaddr(struct hci_dev * hdev)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 
btbcm_set_bdaddr(struct hci_dev * hdev,const bdaddr_t * bdaddr)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 
btbcm_read_pcm_int_params(struct hci_dev * hdev,struct bcm_set_pcm_int_params * params)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 
btbcm_write_pcm_int_params(struct hci_dev * hdev,const struct bcm_set_pcm_int_params * params)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 
btbcm_patchram(struct hci_dev * hdev,const struct firmware * fw)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 
btbcm_reset(struct hci_dev * hdev)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 
btbcm_read_local_name(struct hci_dev * hdev)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 
btbcm_read_local_version(struct hci_dev * hdev)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 
btbcm_read_verbose_config(struct hci_dev * hdev)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 
btbcm_read_controller_features(struct hci_dev * hdev)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 
btbcm_read_usb_product(struct hci_dev * hdev)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 
btbcm_read_info(struct hci_dev * hdev)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 
btbcm_print_local_name(struct hci_dev * hdev)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 	{ 0x420d, "BCM4349B1"	},	/* 002.002.013 */
405 	{ 0x420e, "BCM4349B1"	},	/* 002.002.014 */
406 	{ 0x4217, "BCM4329B1"   },	/* 002.002.023 */
407 	{ 0x6106, "BCM4359C0"	},	/* 003.001.006 */
408 	{ 0x4106, "BCM4335A0"	},	/* 002.001.006 */
409 	{ }
410 };
411 
412 static const struct bcm_subver_table bcm_usb_subver_table[] = {
413 	{ 0x2105, "BCM20703A1"	},	/* 001.001.005 */
414 	{ 0x210b, "BCM43142A0"	},	/* 001.001.011 */
415 	{ 0x2112, "BCM4314A0"	},	/* 001.001.018 */
416 	{ 0x2118, "BCM20702A0"	},	/* 001.001.024 */
417 	{ 0x2126, "BCM4335A0"	},	/* 001.001.038 */
418 	{ 0x220e, "BCM20702A1"	},	/* 001.002.014 */
419 	{ 0x230f, "BCM4356A2"	},	/* 001.003.015 */
420 	{ 0x4106, "BCM4335B0"	},	/* 002.001.006 */
421 	{ 0x410e, "BCM20702B0"	},	/* 002.001.014 */
422 	{ 0x6109, "BCM4335C0"	},	/* 003.001.009 */
423 	{ 0x610c, "BCM4354"	},	/* 003.001.012 */
424 	{ 0x6607, "BCM4350C5"	},	/* 003.006.007 */
425 	{ }
426 };
427 
btbcm_initialize(struct hci_dev * hdev,bool * fw_load_done)428 int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done)
429 {
430 	u16 subver, rev, pid, vid;
431 	struct sk_buff *skb;
432 	struct hci_rp_read_local_version *ver;
433 	const struct bcm_subver_table *bcm_subver_table;
434 	const char *hw_name = NULL;
435 	char postfix[16] = "";
436 	int fw_name_count = 0;
437 	bcm_fw_name *fw_name;
438 	const struct firmware *fw;
439 	int i, err;
440 
441 	/* Reset */
442 	err = btbcm_reset(hdev);
443 	if (err)
444 		return err;
445 
446 	/* Read Local Version Info */
447 	skb = btbcm_read_local_version(hdev);
448 	if (IS_ERR(skb))
449 		return PTR_ERR(skb);
450 
451 	ver = (struct hci_rp_read_local_version *)skb->data;
452 	rev = le16_to_cpu(ver->hci_rev);
453 	subver = le16_to_cpu(ver->lmp_subver);
454 	kfree_skb(skb);
455 
456 	/* Read controller information */
457 	if (!(*fw_load_done)) {
458 		err = btbcm_read_info(hdev);
459 		if (err)
460 			return err;
461 	}
462 	err = btbcm_print_local_name(hdev);
463 	if (err)
464 		return err;
465 
466 	bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :
467 						    bcm_uart_subver_table;
468 
469 	for (i = 0; bcm_subver_table[i].name; i++) {
470 		if (subver == bcm_subver_table[i].subver) {
471 			hw_name = bcm_subver_table[i].name;
472 			break;
473 		}
474 	}
475 
476 	bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
477 		    hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13,
478 		    (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
479 
480 	if (*fw_load_done)
481 		return 0;
482 
483 	if (hdev->bus == HCI_USB) {
484 		/* Read USB Product Info */
485 		skb = btbcm_read_usb_product(hdev);
486 		if (IS_ERR(skb))
487 			return PTR_ERR(skb);
488 
489 		vid = get_unaligned_le16(skb->data + 1);
490 		pid = get_unaligned_le16(skb->data + 3);
491 		kfree_skb(skb);
492 
493 		snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);
494 	}
495 
496 	fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL);
497 	if (!fw_name)
498 		return -ENOMEM;
499 
500 	if (hw_name) {
501 		snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
502 			 "brcm/%s%s.hcd", hw_name, postfix);
503 		fw_name_count++;
504 	}
505 
506 	snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
507 		 "brcm/BCM%s.hcd", postfix);
508 	fw_name_count++;
509 
510 	for (i = 0; i < fw_name_count; i++) {
511 		err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev);
512 		if (err == 0) {
513 			bt_dev_info(hdev, "%s '%s' Patch",
514 				    hw_name ? hw_name : "BCM", fw_name[i]);
515 			*fw_load_done = true;
516 			break;
517 		}
518 	}
519 
520 	if (*fw_load_done) {
521 		err = btbcm_patchram(hdev, fw);
522 		if (err)
523 			bt_dev_info(hdev, "BCM: Patch failed (%d)", err);
524 
525 		release_firmware(fw);
526 	} else {
527 		bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:");
528 		for (i = 0; i < fw_name_count; i++)
529 			bt_dev_err(hdev, "BCM: '%s'", fw_name[i]);
530 	}
531 
532 	kfree(fw_name);
533 	return 0;
534 }
535 EXPORT_SYMBOL_GPL(btbcm_initialize);
536 
btbcm_finalize(struct hci_dev * hdev,bool * fw_load_done)537 int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done)
538 {
539 	int err;
540 
541 	/* Re-initialize if necessary */
542 	if (*fw_load_done) {
543 		err = btbcm_initialize(hdev, fw_load_done);
544 		if (err)
545 			return err;
546 	}
547 
548 	btbcm_check_bdaddr(hdev);
549 
550 	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
551 
552 	return 0;
553 }
554 EXPORT_SYMBOL_GPL(btbcm_finalize);
555 
btbcm_setup_patchram(struct hci_dev * hdev)556 int btbcm_setup_patchram(struct hci_dev *hdev)
557 {
558 	bool fw_load_done = false;
559 	int err;
560 
561 	/* Initialize */
562 	err = btbcm_initialize(hdev, &fw_load_done);
563 	if (err)
564 		return err;
565 
566 	/* Re-initialize after loading Patch */
567 	return btbcm_finalize(hdev, &fw_load_done);
568 }
569 EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
570 
btbcm_setup_apple(struct hci_dev * hdev)571 int btbcm_setup_apple(struct hci_dev *hdev)
572 {
573 	struct sk_buff *skb;
574 	int err;
575 
576 	/* Reset */
577 	err = btbcm_reset(hdev);
578 	if (err)
579 		return err;
580 
581 	/* Read Verbose Config Version Info */
582 	skb = btbcm_read_verbose_config(hdev);
583 	if (!IS_ERR(skb)) {
584 		bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
585 			    skb->data[1], get_unaligned_le16(skb->data + 5));
586 		kfree_skb(skb);
587 	}
588 
589 	/* Read USB Product Info */
590 	skb = btbcm_read_usb_product(hdev);
591 	if (!IS_ERR(skb)) {
592 		bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
593 			    get_unaligned_le16(skb->data + 1),
594 			    get_unaligned_le16(skb->data + 3));
595 		kfree_skb(skb);
596 	}
597 
598 	/* Read Controller Features */
599 	skb = btbcm_read_controller_features(hdev);
600 	if (!IS_ERR(skb)) {
601 		bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
602 		kfree_skb(skb);
603 	}
604 
605 	/* Read Local Name */
606 	skb = btbcm_read_local_name(hdev);
607 	if (!IS_ERR(skb)) {
608 		bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
609 		kfree_skb(skb);
610 	}
611 
612 	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
613 
614 	return 0;
615 }
616 EXPORT_SYMBOL_GPL(btbcm_setup_apple);
617 
618 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
619 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
620 MODULE_VERSION(VERSION);
621 MODULE_LICENSE("GPL");
622