dmaengine: tegra210-adma: fix global intr clear
[platform/kernel/linux-starfive.git] / 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 <linux/dmi.h>
12 #include <linux/of.h>
13 #include <asm/unaligned.h>
14
15 #include <net/bluetooth/bluetooth.h>
16 #include <net/bluetooth/hci_core.h>
17
18 #include "btbcm.h"
19
20 #define VERSION "0.1"
21
22 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
23 #define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
24 #define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
25 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
26 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
27 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
28 #define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})
29 #define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
30 #define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
31
32 #define BCM_FW_NAME_LEN                 64
33 #define BCM_FW_NAME_COUNT_MAX           4
34 /* For kmalloc-ing the fw-name array instead of putting it on the stack */
35 typedef char bcm_fw_name[BCM_FW_NAME_LEN];
36
37 int btbcm_check_bdaddr(struct hci_dev *hdev)
38 {
39         struct hci_rp_read_bd_addr *bda;
40         struct sk_buff *skb;
41
42         skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
43                              HCI_INIT_TIMEOUT);
44         if (IS_ERR(skb)) {
45                 int err = PTR_ERR(skb);
46
47                 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
48                 return err;
49         }
50
51         if (skb->len != sizeof(*bda)) {
52                 bt_dev_err(hdev, "BCM: Device address length mismatch");
53                 kfree_skb(skb);
54                 return -EIO;
55         }
56
57         bda = (struct hci_rp_read_bd_addr *)skb->data;
58
59         /* Check if the address indicates a controller with either an
60          * invalid or default address. In both cases the device needs
61          * to be marked as not having a valid address.
62          *
63          * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
64          * with no configured address.
65          *
66          * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller
67          * with no configured address.
68          *
69          * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller
70          * with no configured address.
71          *
72          * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
73          * with waiting for configuration state.
74          *
75          * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
76          * with waiting for configuration state.
77          *
78          * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
79          * with no configured address.
80          */
81         if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
82             !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
83             !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
84             !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
85             !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
86             !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||
87             !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
88             !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
89             !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
90                 bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
91                             &bda->bdaddr);
92                 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
93         }
94
95         kfree_skb(skb);
96
97         return 0;
98 }
99 EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
100
101 int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
102 {
103         struct sk_buff *skb;
104         int err;
105
106         skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
107         if (IS_ERR(skb)) {
108                 err = PTR_ERR(skb);
109                 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
110                 return err;
111         }
112         kfree_skb(skb);
113
114         return 0;
115 }
116 EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
117
118 int btbcm_read_pcm_int_params(struct hci_dev *hdev,
119                               struct bcm_set_pcm_int_params *params)
120 {
121         struct sk_buff *skb;
122         int err = 0;
123
124         skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
125         if (IS_ERR(skb)) {
126                 err = PTR_ERR(skb);
127                 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
128                 return err;
129         }
130
131         if (skb->len != 6 || skb->data[0]) {
132                 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
133                 kfree_skb(skb);
134                 return -EIO;
135         }
136
137         if (params)
138                 memcpy(params, skb->data + 1, 5);
139
140         kfree_skb(skb);
141
142         return 0;
143 }
144 EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
145
146 int btbcm_write_pcm_int_params(struct hci_dev *hdev,
147                                const struct bcm_set_pcm_int_params *params)
148 {
149         struct sk_buff *skb;
150         int err;
151
152         skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
153         if (IS_ERR(skb)) {
154                 err = PTR_ERR(skb);
155                 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
156                 return err;
157         }
158         kfree_skb(skb);
159
160         return 0;
161 }
162 EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
163
164 int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
165 {
166         const struct hci_command_hdr *cmd;
167         const u8 *fw_ptr;
168         size_t fw_size;
169         struct sk_buff *skb;
170         u16 opcode;
171         int err = 0;
172
173         /* Start Download */
174         skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
175         if (IS_ERR(skb)) {
176                 err = PTR_ERR(skb);
177                 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
178                            err);
179                 goto done;
180         }
181         kfree_skb(skb);
182
183         /* 50 msec delay after Download Minidrv completes */
184         msleep(50);
185
186         fw_ptr = fw->data;
187         fw_size = fw->size;
188
189         while (fw_size >= sizeof(*cmd)) {
190                 const u8 *cmd_param;
191
192                 cmd = (struct hci_command_hdr *)fw_ptr;
193                 fw_ptr += sizeof(*cmd);
194                 fw_size -= sizeof(*cmd);
195
196                 if (fw_size < cmd->plen) {
197                         bt_dev_err(hdev, "BCM: Patch is corrupted");
198                         err = -EINVAL;
199                         goto done;
200                 }
201
202                 cmd_param = fw_ptr;
203                 fw_ptr += cmd->plen;
204                 fw_size -= cmd->plen;
205
206                 opcode = le16_to_cpu(cmd->opcode);
207
208                 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
209                                      HCI_INIT_TIMEOUT);
210                 if (IS_ERR(skb)) {
211                         err = PTR_ERR(skb);
212                         bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
213                                    opcode, err);
214                         goto done;
215                 }
216                 kfree_skb(skb);
217         }
218
219         /* 250 msec delay after Launch Ram completes */
220         msleep(250);
221
222 done:
223         return err;
224 }
225 EXPORT_SYMBOL(btbcm_patchram);
226
227 static int btbcm_reset(struct hci_dev *hdev)
228 {
229         struct sk_buff *skb;
230
231         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
232         if (IS_ERR(skb)) {
233                 int err = PTR_ERR(skb);
234
235                 bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
236                 return err;
237         }
238         kfree_skb(skb);
239
240         /* 100 msec delay for module to complete reset process */
241         msleep(100);
242
243         return 0;
244 }
245
246 static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
247 {
248         struct sk_buff *skb;
249
250         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
251                              HCI_INIT_TIMEOUT);
252         if (IS_ERR(skb)) {
253                 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
254                            PTR_ERR(skb));
255                 return skb;
256         }
257
258         if (skb->len != sizeof(struct hci_rp_read_local_name)) {
259                 bt_dev_err(hdev, "BCM: Local name length mismatch");
260                 kfree_skb(skb);
261                 return ERR_PTR(-EIO);
262         }
263
264         return skb;
265 }
266
267 static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
268 {
269         struct sk_buff *skb;
270
271         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
272                              HCI_INIT_TIMEOUT);
273         if (IS_ERR(skb)) {
274                 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
275                            PTR_ERR(skb));
276                 return skb;
277         }
278
279         if (skb->len != sizeof(struct hci_rp_read_local_version)) {
280                 bt_dev_err(hdev, "BCM: Local version length mismatch");
281                 kfree_skb(skb);
282                 return ERR_PTR(-EIO);
283         }
284
285         return skb;
286 }
287
288 static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
289 {
290         struct sk_buff *skb;
291
292         skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
293         if (IS_ERR(skb)) {
294                 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
295                            PTR_ERR(skb));
296                 return skb;
297         }
298
299         if (skb->len != 7) {
300                 bt_dev_err(hdev, "BCM: Verbose config length mismatch");
301                 kfree_skb(skb);
302                 return ERR_PTR(-EIO);
303         }
304
305         return skb;
306 }
307
308 static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
309 {
310         struct sk_buff *skb;
311
312         skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
313         if (IS_ERR(skb)) {
314                 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
315                            PTR_ERR(skb));
316                 return skb;
317         }
318
319         if (skb->len != 9) {
320                 bt_dev_err(hdev, "BCM: Controller features length mismatch");
321                 kfree_skb(skb);
322                 return ERR_PTR(-EIO);
323         }
324
325         return skb;
326 }
327
328 static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
329 {
330         struct sk_buff *skb;
331
332         skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
333         if (IS_ERR(skb)) {
334                 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
335                            PTR_ERR(skb));
336                 return skb;
337         }
338
339         if (skb->len != 5) {
340                 bt_dev_err(hdev, "BCM: USB product length mismatch");
341                 kfree_skb(skb);
342                 return ERR_PTR(-EIO);
343         }
344
345         return skb;
346 }
347
348 static const struct dmi_system_id disable_broken_read_transmit_power[] = {
349         {
350                  .matches = {
351                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
352                         DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"),
353                 },
354         },
355         {
356                  .matches = {
357                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
358                         DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"),
359                 },
360         },
361         {
362                  .matches = {
363                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
364                         DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"),
365                 },
366         },
367         {
368                  .matches = {
369                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
370                         DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"),
371                 },
372         },
373         {
374                  .matches = {
375                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
376                         DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"),
377                 },
378         },
379         {
380                  .matches = {
381                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
382                         DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"),
383                 },
384         },
385         {
386                  .matches = {
387                         DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
388                         DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"),
389                 },
390         },
391         { }
392 };
393
394 static int btbcm_read_info(struct hci_dev *hdev)
395 {
396         struct sk_buff *skb;
397
398         /* Read Verbose Config Version Info */
399         skb = btbcm_read_verbose_config(hdev);
400         if (IS_ERR(skb))
401                 return PTR_ERR(skb);
402
403         bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
404         kfree_skb(skb);
405
406         return 0;
407 }
408
409 static int btbcm_print_controller_features(struct hci_dev *hdev)
410 {
411         struct sk_buff *skb;
412
413         /* Read Controller Features */
414         skb = btbcm_read_controller_features(hdev);
415         if (IS_ERR(skb))
416                 return PTR_ERR(skb);
417
418         bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
419         kfree_skb(skb);
420
421         /* Read DMI and disable broken Read LE Min/Max Tx Power */
422         if (dmi_first_match(disable_broken_read_transmit_power))
423                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
424
425         return 0;
426 }
427
428 static int btbcm_print_local_name(struct hci_dev *hdev)
429 {
430         struct sk_buff *skb;
431
432         /* Read Local Name */
433         skb = btbcm_read_local_name(hdev);
434         if (IS_ERR(skb))
435                 return PTR_ERR(skb);
436
437         bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
438         kfree_skb(skb);
439
440         return 0;
441 }
442
443 struct bcm_subver_table {
444         u16 subver;
445         const char *name;
446 };
447
448 static const struct bcm_subver_table bcm_uart_subver_table[] = {
449         { 0x1111, "BCM4362A2"   },      /* 000.017.017 */
450         { 0x4103, "BCM4330B1"   },      /* 002.001.003 */
451         { 0x410d, "BCM4334B0"   },      /* 002.001.013 */
452         { 0x410e, "BCM43341B0"  },      /* 002.001.014 */
453         { 0x4204, "BCM2076B1"   },      /* 002.002.004 */
454         { 0x4406, "BCM4324B3"   },      /* 002.004.006 */
455         { 0x4606, "BCM4324B5"   },      /* 002.006.006 */
456         { 0x6109, "BCM4335C0"   },      /* 003.001.009 */
457         { 0x610c, "BCM4354"     },      /* 003.001.012 */
458         { 0x2122, "BCM4343A0"   },      /* 001.001.034 */
459         { 0x2209, "BCM43430A1"  },      /* 001.002.009 */
460         { 0x6119, "BCM4345C0"   },      /* 003.001.025 */
461         { 0x6606, "BCM4345C5"   },      /* 003.006.006 */
462         { 0x230f, "BCM4356A2"   },      /* 001.003.015 */
463         { 0x220e, "BCM20702A1"  },      /* 001.002.014 */
464         { 0x420d, "BCM4349B1"   },      /* 002.002.013 */
465         { 0x420e, "BCM4349B1"   },      /* 002.002.014 */
466         { 0x4217, "BCM4329B1"   },      /* 002.002.023 */
467         { 0x6106, "BCM4359C0"   },      /* 003.001.006 */
468         { 0x4106, "BCM4335A0"   },      /* 002.001.006 */
469         { 0x410c, "BCM43430B0"  },      /* 002.001.012 */
470         { 0x2119, "BCM4373A0"   },      /* 001.001.025 */
471         { }
472 };
473
474 static const struct bcm_subver_table bcm_usb_subver_table[] = {
475         { 0x2105, "BCM20703A1"  },      /* 001.001.005 */
476         { 0x210b, "BCM43142A0"  },      /* 001.001.011 */
477         { 0x2112, "BCM4314A0"   },      /* 001.001.018 */
478         { 0x2118, "BCM20702A0"  },      /* 001.001.024 */
479         { 0x2126, "BCM4335A0"   },      /* 001.001.038 */
480         { 0x220e, "BCM20702A1"  },      /* 001.002.014 */
481         { 0x230f, "BCM4356A2"   },      /* 001.003.015 */
482         { 0x4106, "BCM4335B0"   },      /* 002.001.006 */
483         { 0x410e, "BCM20702B0"  },      /* 002.001.014 */
484         { 0x6109, "BCM4335C0"   },      /* 003.001.009 */
485         { 0x610c, "BCM4354"     },      /* 003.001.012 */
486         { 0x6607, "BCM4350C5"   },      /* 003.006.007 */
487         { }
488 };
489
490 /*
491  * This currently only looks up the device tree board appendix,
492  * but can be expanded to other mechanisms.
493  */
494 static const char *btbcm_get_board_name(struct device *dev)
495 {
496 #ifdef CONFIG_OF
497         struct device_node *root;
498         char *board_type;
499         const char *tmp;
500         int len;
501         int i;
502
503         root = of_find_node_by_path("/");
504         if (!root)
505                 return NULL;
506
507         if (of_property_read_string_index(root, "compatible", 0, &tmp))
508                 return NULL;
509
510         /* get rid of any '/' in the compatible string */
511         len = strlen(tmp) + 1;
512         board_type = devm_kzalloc(dev, len, GFP_KERNEL);
513         strscpy(board_type, tmp, len);
514         for (i = 0; i < board_type[i]; i++) {
515                 if (board_type[i] == '/')
516                         board_type[i] = '-';
517         }
518         of_node_put(root);
519
520         return board_type;
521 #else
522         return NULL;
523 #endif
524 }
525
526 int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)
527 {
528         u16 subver, rev, pid, vid;
529         struct sk_buff *skb;
530         struct hci_rp_read_local_version *ver;
531         const struct bcm_subver_table *bcm_subver_table;
532         const char *hw_name = NULL;
533         const char *board_name;
534         char postfix[16] = "";
535         int fw_name_count = 0;
536         bcm_fw_name *fw_name;
537         const struct firmware *fw;
538         int i, err;
539
540         board_name = btbcm_get_board_name(&hdev->dev);
541
542         /* Reset */
543         err = btbcm_reset(hdev);
544         if (err)
545                 return err;
546
547         /* Read Local Version Info */
548         skb = btbcm_read_local_version(hdev);
549         if (IS_ERR(skb))
550                 return PTR_ERR(skb);
551
552         ver = (struct hci_rp_read_local_version *)skb->data;
553         rev = le16_to_cpu(ver->hci_rev);
554         subver = le16_to_cpu(ver->lmp_subver);
555         kfree_skb(skb);
556
557         /* Read controller information */
558         if (!(*fw_load_done)) {
559                 err = btbcm_read_info(hdev);
560                 if (err)
561                         return err;
562         }
563
564         if (!use_autobaud_mode) {
565                 err = btbcm_print_controller_features(hdev);
566                 if (err)
567                         return err;
568
569                 err = btbcm_print_local_name(hdev);
570                 if (err)
571                         return err;
572         }
573
574         bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :
575                                                     bcm_uart_subver_table;
576
577         for (i = 0; bcm_subver_table[i].name; i++) {
578                 if (subver == bcm_subver_table[i].subver) {
579                         hw_name = bcm_subver_table[i].name;
580                         break;
581                 }
582         }
583
584         bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
585                     hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13,
586                     (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
587
588         if (*fw_load_done)
589                 return 0;
590
591         if (hdev->bus == HCI_USB) {
592                 /* Read USB Product Info */
593                 skb = btbcm_read_usb_product(hdev);
594                 if (IS_ERR(skb))
595                         return PTR_ERR(skb);
596
597                 vid = get_unaligned_le16(skb->data + 1);
598                 pid = get_unaligned_le16(skb->data + 3);
599                 kfree_skb(skb);
600
601                 snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);
602         }
603
604         fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL);
605         if (!fw_name)
606                 return -ENOMEM;
607
608         if (hw_name) {
609                 if (board_name) {
610                         snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
611                                  "brcm/%s%s.%s.hcd", hw_name, postfix, board_name);
612                         fw_name_count++;
613                 }
614                 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
615                          "brcm/%s%s.hcd", hw_name, postfix);
616                 fw_name_count++;
617         }
618
619         if (board_name) {
620                 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
621                          "brcm/BCM%s.%s.hcd", postfix, board_name);
622                 fw_name_count++;
623         }
624         snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
625                  "brcm/BCM%s.hcd", postfix);
626         fw_name_count++;
627
628         for (i = 0; i < fw_name_count; i++) {
629                 err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev);
630                 if (err == 0) {
631                         bt_dev_info(hdev, "%s '%s' Patch",
632                                     hw_name ? hw_name : "BCM", fw_name[i]);
633                         *fw_load_done = true;
634                         break;
635                 }
636         }
637
638         if (*fw_load_done) {
639                 err = btbcm_patchram(hdev, fw);
640                 if (err)
641                         bt_dev_info(hdev, "BCM: Patch failed (%d)", err);
642
643                 release_firmware(fw);
644         } else {
645                 bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:");
646                 for (i = 0; i < fw_name_count; i++)
647                         bt_dev_err(hdev, "BCM: '%s'", fw_name[i]);
648         }
649
650         kfree(fw_name);
651         return 0;
652 }
653 EXPORT_SYMBOL_GPL(btbcm_initialize);
654
655 int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)
656 {
657         int err;
658
659         /* Re-initialize if necessary */
660         if (*fw_load_done) {
661                 err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode);
662                 if (err)
663                         return err;
664         }
665
666         btbcm_check_bdaddr(hdev);
667
668         set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
669
670         return 0;
671 }
672 EXPORT_SYMBOL_GPL(btbcm_finalize);
673
674 int btbcm_setup_patchram(struct hci_dev *hdev)
675 {
676         bool fw_load_done = false;
677         bool use_autobaud_mode = false;
678         int err;
679
680         /* Initialize */
681         err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode);
682         if (err)
683                 return err;
684
685         /* Re-initialize after loading Patch */
686         return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode);
687 }
688 EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
689
690 int btbcm_setup_apple(struct hci_dev *hdev)
691 {
692         struct sk_buff *skb;
693         int err;
694
695         /* Reset */
696         err = btbcm_reset(hdev);
697         if (err)
698                 return err;
699
700         /* Read Verbose Config Version Info */
701         skb = btbcm_read_verbose_config(hdev);
702         if (!IS_ERR(skb)) {
703                 bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
704                             skb->data[1], get_unaligned_le16(skb->data + 5));
705                 kfree_skb(skb);
706         }
707
708         /* Read USB Product Info */
709         skb = btbcm_read_usb_product(hdev);
710         if (!IS_ERR(skb)) {
711                 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
712                             get_unaligned_le16(skb->data + 1),
713                             get_unaligned_le16(skb->data + 3));
714                 kfree_skb(skb);
715         }
716
717         /* Read Controller Features */
718         skb = btbcm_read_controller_features(hdev);
719         if (!IS_ERR(skb)) {
720                 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
721                 kfree_skb(skb);
722         }
723
724         /* Read Local Name */
725         skb = btbcm_read_local_name(hdev);
726         if (!IS_ERR(skb)) {
727                 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
728                 kfree_skb(skb);
729         }
730
731         set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
732
733         return 0;
734 }
735 EXPORT_SYMBOL_GPL(btbcm_setup_apple);
736
737 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
738 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
739 MODULE_VERSION(VERSION);
740 MODULE_LICENSE("GPL");