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net: vxge: Fix some indentation issues
[linux/fpc-iii.git] / drivers / bluetooth / btbcm.c
blobafa4cb3b16e3daa5d9e2fc4a28ac1175cca59620
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
39 int 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_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
49 return err;
50 }
51
52 if (skb->len != sizeof(*bda)) {
53 bt_dev_err(hdev, "BCM: Device address length mismatch");
54 kfree_skb(skb);
55 return -EIO;
56 }
57
58 bda = (struct hci_rp_read_bd_addr *)skb->data;
59
60 /* Check if the address indicates a controller with either an
61 * invalid or default address. In both cases the device needs
62 * to be marked as not having a valid address.
63 *
64 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
65 * with no configured address.
66 *
67 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
68 * with waiting for configuration state.
69 *
70 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
71 * with waiting for configuration state.
72 */
73 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
74 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
75 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1)) {
76 bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
77 &bda->bdaddr);
78 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
79 }
80
81 kfree_skb(skb);
82
83 return 0;
84 }
85 EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
86
87 int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
88 {
89 struct sk_buff *skb;
90 int err;
91
92 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
93 if (IS_ERR(skb)) {
94 err = PTR_ERR(skb);
95 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
96 return err;
97 }
98 kfree_skb(skb);
99
100 return 0;
101 }
102 EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
103
104 int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
105 {
106 const struct hci_command_hdr *cmd;
107 const u8 *fw_ptr;
108 size_t fw_size;
109 struct sk_buff *skb;
110 u16 opcode;
111 int err = 0;
112
113 /* Start Download */
114 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
115 if (IS_ERR(skb)) {
116 err = PTR_ERR(skb);
117 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
118 err);
119 goto done;
120 }
121 kfree_skb(skb);
122
123 /* 50 msec delay after Download Minidrv completes */
124 msleep(50);
125
126 fw_ptr = fw->data;
127 fw_size = fw->size;
128
129 while (fw_size >= sizeof(*cmd)) {
130 const u8 *cmd_param;
131
132 cmd = (struct hci_command_hdr *)fw_ptr;
133 fw_ptr += sizeof(*cmd);
134 fw_size -= sizeof(*cmd);
135
136 if (fw_size < cmd->plen) {
137 bt_dev_err(hdev, "BCM: Patch is corrupted");
138 err = -EINVAL;
139 goto done;
140 }
141
142 cmd_param = fw_ptr;
143 fw_ptr += cmd->plen;
144 fw_size -= cmd->plen;
145
146 opcode = le16_to_cpu(cmd->opcode);
147
148 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
149 HCI_INIT_TIMEOUT);
150 if (IS_ERR(skb)) {
151 err = PTR_ERR(skb);
152 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
153 opcode, err);
154 goto done;
155 }
156 kfree_skb(skb);
157 }
158
159 /* 250 msec delay after Launch Ram completes */
160 msleep(250);
161
162 done:
163 return err;
164 }
165 EXPORT_SYMBOL(btbcm_patchram);
166
167 static int btbcm_reset(struct hci_dev *hdev)
168 {
169 struct sk_buff *skb;
170
171 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
172 if (IS_ERR(skb)) {
173 int err = PTR_ERR(skb);
174 bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
175 return err;
176 }
177 kfree_skb(skb);
178
179 /* 100 msec delay for module to complete reset process */
180 msleep(100);
181
182 return 0;
183 }
184
185 static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
186 {
187 struct sk_buff *skb;
188
189 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
190 HCI_INIT_TIMEOUT);
191 if (IS_ERR(skb)) {
192 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
193 PTR_ERR(skb));
194 return skb;
195 }
196
197 if (skb->len != sizeof(struct hci_rp_read_local_name)) {
198 bt_dev_err(hdev, "BCM: Local name length mismatch");
199 kfree_skb(skb);
200 return ERR_PTR(-EIO);
201 }
202
203 return skb;
204 }
205
206 static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
207 {
208 struct sk_buff *skb;
209
210 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
211 HCI_INIT_TIMEOUT);
212 if (IS_ERR(skb)) {
213 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
214 PTR_ERR(skb));
215 return skb;
216 }
217
218 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
219 bt_dev_err(hdev, "BCM: Local version length mismatch");
220 kfree_skb(skb);
221 return ERR_PTR(-EIO);
222 }
223
224 return skb;
225 }
226
227 static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
228 {
229 struct sk_buff *skb;
230
231 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
232 if (IS_ERR(skb)) {
233 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
234 PTR_ERR(skb));
235 return skb;
236 }
237
238 if (skb->len != 7) {
239 bt_dev_err(hdev, "BCM: Verbose config length mismatch");
240 kfree_skb(skb);
241 return ERR_PTR(-EIO);
242 }
243
244 return skb;
245 }
246
247 static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
248 {
249 struct sk_buff *skb;
250
251 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
252 if (IS_ERR(skb)) {
253 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
254 PTR_ERR(skb));
255 return skb;
256 }
257
258 if (skb->len != 9) {
259 bt_dev_err(hdev, "BCM: Controller features 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_usb_product(struct hci_dev *hdev)
268 {
269 struct sk_buff *skb;
270
271 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
272 if (IS_ERR(skb)) {
273 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
274 PTR_ERR(skb));
275 return skb;
276 }
277
278 if (skb->len != 5) {
279 bt_dev_err(hdev, "BCM: USB product length mismatch");
280 kfree_skb(skb);
281 return ERR_PTR(-EIO);
282 }
283
284 return skb;
285 }
286
287 static int btbcm_read_info(struct hci_dev *hdev)
288 {
289 struct sk_buff *skb;
290
291 /* Read Verbose Config Version Info */
292 skb = btbcm_read_verbose_config(hdev);
293 if (IS_ERR(skb))
294 return PTR_ERR(skb);
295
296 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
297 kfree_skb(skb);
298
299 /* Read Controller Features */
300 skb = btbcm_read_controller_features(hdev);
301 if (IS_ERR(skb))
302 return PTR_ERR(skb);
303
304 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
305 kfree_skb(skb);
306
307 /* Read Local Name */
308 skb = btbcm_read_local_name(hdev);
309 if (IS_ERR(skb))
310 return PTR_ERR(skb);
311
312 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
313 kfree_skb(skb);
314
315 return 0;
316 }
317
318 static const struct {
319 u16 subver;
320 const char *name;
321 } bcm_uart_subver_table[] = {
322 { 0x4103, "BCM4330B1" }, /* 002.001.003 */
323 { 0x410e, "BCM43341B0" }, /* 002.001.014 */
324 { 0x4406, "BCM4324B3" }, /* 002.004.006 */
325 { 0x610c, "BCM4354" }, /* 003.001.012 */
326 { 0x2209, "BCM43430A1" }, /* 001.002.009 */
327 { 0x6119, "BCM4345C0" }, /* 003.001.025 */
328 { 0x230f, "BCM4356A2" }, /* 001.003.015 */
329 { }
330 };
331
332 int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len)
333 {
334 u16 subver, rev;
335 const char *hw_name = NULL;
336 struct sk_buff *skb;
337 struct hci_rp_read_local_version *ver;
338 int i, 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 /* Read controller information */
356 err = btbcm_read_info(hdev);
357 if (err)
358 return err;
359
360 switch ((rev & 0xf000) >> 12) {
361 case 0:
362 case 1:
363 case 2:
364 case 3:
365 for (i = 0; bcm_uart_subver_table[i].name; i++) {
366 if (subver == bcm_uart_subver_table[i].subver) {
367 hw_name = bcm_uart_subver_table[i].name;
368 break;
369 }
370 }
371
372 snprintf(fw_name, len, "brcm/%s.hcd", hw_name ? : "BCM");
373 break;
374 default:
375 return 0;
376 }
377
378 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
379 hw_name ? : "BCM", (subver & 0xe000) >> 13,
380 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
381
382 return 0;
383 }
384 EXPORT_SYMBOL_GPL(btbcm_initialize);
385
386 int btbcm_finalize(struct hci_dev *hdev)
387 {
388 struct sk_buff *skb;
389 struct hci_rp_read_local_version *ver;
390 u16 subver, rev;
391 int err;
392
393 /* Reset */
394 err = btbcm_reset(hdev);
395 if (err)
396 return err;
397
398 /* Read Local Version Info */
399 skb = btbcm_read_local_version(hdev);
400 if (IS_ERR(skb))
401 return PTR_ERR(skb);
402
403 ver = (struct hci_rp_read_local_version *)skb->data;
404 rev = le16_to_cpu(ver->hci_rev);
405 subver = le16_to_cpu(ver->lmp_subver);
406 kfree_skb(skb);
407
408 bt_dev_info(hdev, "BCM (%3.3u.%3.3u.%3.3u) build %4.4u",
409 (subver & 0xe000) >> 13, (subver & 0x1f00) >> 8,
410 (subver & 0x00ff), rev & 0x0fff);
411
412 btbcm_check_bdaddr(hdev);
413
414 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
415
416 return 0;
417 }
418 EXPORT_SYMBOL_GPL(btbcm_finalize);
419
420 static const struct {
421 u16 subver;
422 const char *name;
423 } bcm_usb_subver_table[] = {
424 { 0x210b, "BCM43142A0" }, /* 001.001.011 */
425 { 0x2112, "BCM4314A0" }, /* 001.001.018 */
426 { 0x2118, "BCM20702A0" }, /* 001.001.024 */
427 { 0x2126, "BCM4335A0" }, /* 001.001.038 */
428 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
429 { 0x230f, "BCM4354A2" }, /* 001.003.015 */
430 { 0x4106, "BCM4335B0" }, /* 002.001.006 */
431 { 0x410e, "BCM20702B0" }, /* 002.001.014 */
432 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
433 { 0x610c, "BCM4354" }, /* 003.001.012 */
434 { }
435 };
436
437 int btbcm_setup_patchram(struct hci_dev *hdev)
438 {
439 char fw_name[64];
440 const struct firmware *fw;
441 u16 subver, rev, pid, vid;
442 const char *hw_name = NULL;
443 struct sk_buff *skb;
444 struct hci_rp_read_local_version *ver;
445 int i, err;
446
447 /* Reset */
448 err = btbcm_reset(hdev);
449 if (err)
450 return err;
451
452 /* Read Local Version Info */
453 skb = btbcm_read_local_version(hdev);
454 if (IS_ERR(skb))
455 return PTR_ERR(skb);
456
457 ver = (struct hci_rp_read_local_version *)skb->data;
458 rev = le16_to_cpu(ver->hci_rev);
459 subver = le16_to_cpu(ver->lmp_subver);
460 kfree_skb(skb);
461
462 /* Read controller information */
463 err = btbcm_read_info(hdev);
464 if (err)
465 return err;
466
467 switch ((rev & 0xf000) >> 12) {
468 case 0:
469 case 3:
470 for (i = 0; bcm_uart_subver_table[i].name; i++) {
471 if (subver == bcm_uart_subver_table[i].subver) {
472 hw_name = bcm_uart_subver_table[i].name;
473 break;
474 }
475 }
476
477 snprintf(fw_name, sizeof(fw_name), "brcm/%s.hcd",
478 hw_name ? : "BCM");
479 break;
480 case 1:
481 case 2:
482 /* Read USB Product Info */
483 skb = btbcm_read_usb_product(hdev);
484 if (IS_ERR(skb))
485 return PTR_ERR(skb);
486
487 vid = get_unaligned_le16(skb->data + 1);
488 pid = get_unaligned_le16(skb->data + 3);
489 kfree_skb(skb);
490
491 for (i = 0; bcm_usb_subver_table[i].name; i++) {
492 if (subver == bcm_usb_subver_table[i].subver) {
493 hw_name = bcm_usb_subver_table[i].name;
494 break;
495 }
496 }
497
498 snprintf(fw_name, sizeof(fw_name), "brcm/%s-%4.4x-%4.4x.hcd",
499 hw_name ? : "BCM", vid, pid);
500 break;
501 default:
502 return 0;
503 }
504
505 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
506 hw_name ? : "BCM", (subver & 0xe000) >> 13,
507 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
508
509 err = request_firmware(&fw, fw_name, &hdev->dev);
510 if (err < 0) {
511 bt_dev_info(hdev, "BCM: Patch %s not found", fw_name);
512 goto done;
513 }
514
515 btbcm_patchram(hdev, fw);
516
517 release_firmware(fw);
518
519 /* Reset */
520 err = btbcm_reset(hdev);
521 if (err)
522 return err;
523
524 /* Read Local Version Info */
525 skb = btbcm_read_local_version(hdev);
526 if (IS_ERR(skb))
527 return PTR_ERR(skb);
528
529 ver = (struct hci_rp_read_local_version *)skb->data;
530 rev = le16_to_cpu(ver->hci_rev);
531 subver = le16_to_cpu(ver->lmp_subver);
532 kfree_skb(skb);
533
534 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
535 hw_name ? : "BCM", (subver & 0xe000) >> 13,
536 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
537
538 /* Read Local Name */
539 skb = btbcm_read_local_name(hdev);
540 if (IS_ERR(skb))
541 return PTR_ERR(skb);
542
543 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
544 kfree_skb(skb);
545
546 done:
547 btbcm_check_bdaddr(hdev);
548
549 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
550
551 return 0;
552 }
553 EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
554
555 int btbcm_setup_apple(struct hci_dev *hdev)
556 {
557 struct sk_buff *skb;
558 int err;
559
560 /* Reset */
561 err = btbcm_reset(hdev);
562 if (err)
563 return err;
564
565 /* Read Verbose Config Version Info */
566 skb = btbcm_read_verbose_config(hdev);
567 if (!IS_ERR(skb)) {
568 bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
569 skb->data[1], get_unaligned_le16(skb->data + 5));
570 kfree_skb(skb);
571 }
572
573 /* Read USB Product Info */
574 skb = btbcm_read_usb_product(hdev);
575 if (!IS_ERR(skb)) {
576 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
577 get_unaligned_le16(skb->data + 1),
578 get_unaligned_le16(skb->data + 3));
579 kfree_skb(skb);
580 }
581
582 /* Read Controller Features */
583 skb = btbcm_read_controller_features(hdev);
584 if (!IS_ERR(skb)) {
585 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
586 kfree_skb(skb);
587 }
588
589 /* Read Local Name */
590 skb = btbcm_read_local_name(hdev);
591 if (!IS_ERR(skb)) {
592 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
593 kfree_skb(skb);
594 }
595
596 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
597
598 return 0;
599 }
600 EXPORT_SYMBOL_GPL(btbcm_setup_apple);
601
602 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
603 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
604 MODULE_VERSION(VERSION);
605 MODULE_LICENSE("GPL");
Linux with added FPC-III support