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Commit | Line | Data |
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4fba30f0 MH |
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> | |
1c8ba6d0 MH |
25 | #include <linux/firmware.h> |
26 | #include <asm/unaligned.h> | |
4fba30f0 MH |
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}}) | |
a8f3b941 | 36 | #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}}) |
4a546ec3 | 37 | #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}}) |
4fba30f0 MH |
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_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; | |
4fba30f0 | 60 | |
a8f3b941 FD |
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 | |
4fba30f0 | 66 | * with no configured address. |
a8f3b941 FD |
67 | * |
68 | * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller | |
69 | * with waiting for configuration state. | |
4a546ec3 FD |
70 | * |
71 | * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller | |
72 | * with waiting for configuration state. | |
4fba30f0 | 73 | */ |
a8f3b941 | 74 | if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) || |
4a546ec3 FD |
75 | !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) || |
76 | !bacmp(&bda->bdaddr, BDADDR_BCM4330B1)) { | |
4fba30f0 MH |
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 | } | |
86 | EXPORT_SYMBOL_GPL(btbcm_check_bdaddr); | |
87 | ||
88 | int 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 | } | |
104 | EXPORT_SYMBOL_GPL(btbcm_set_bdaddr); | |
105 | ||
18aeb444 | 106 | int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) |
50862ee5 MH |
107 | { |
108 | const struct hci_command_hdr *cmd; | |
50862ee5 MH |
109 | const u8 *fw_ptr; |
110 | size_t fw_size; | |
111 | struct sk_buff *skb; | |
112 | u16 opcode; | |
18aeb444 | 113 | int err = 0; |
50862ee5 MH |
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) { | |
18aeb444 | 139 | BT_ERR("%s: BCM: Patch is corrupted", hdev->name); |
50862ee5 MH |
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 | ||
164 | done: | |
50862ee5 MH |
165 | return err; |
166 | } | |
167 | EXPORT_SYMBOL(btbcm_patchram); | |
168 | ||
1c8ba6d0 MH |
169 | static 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 | ||
184 | static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev) | |
185 | { | |
186 | struct sk_buff *skb; | |
187 | ||
188 | skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, | |
189 | HCI_INIT_TIMEOUT); | |
190 | if (IS_ERR(skb)) { | |
191 | BT_ERR("%s: BCM: Reading local version info failed (%ld)", | |
192 | hdev->name, PTR_ERR(skb)); | |
193 | return skb; | |
194 | } | |
195 | ||
196 | if (skb->len != sizeof(struct hci_rp_read_local_version)) { | |
197 | BT_ERR("%s: BCM: Local version length mismatch", hdev->name); | |
198 | kfree_skb(skb); | |
199 | return ERR_PTR(-EIO); | |
200 | } | |
201 | ||
202 | return skb; | |
203 | } | |
204 | ||
205 | static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev) | |
206 | { | |
207 | struct sk_buff *skb; | |
208 | ||
209 | skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT); | |
210 | if (IS_ERR(skb)) { | |
211 | BT_ERR("%s: BCM: Read verbose config info failed (%ld)", | |
212 | hdev->name, PTR_ERR(skb)); | |
213 | return skb; | |
214 | } | |
215 | ||
216 | if (skb->len != 7) { | |
217 | BT_ERR("%s: BCM: Verbose config length mismatch", hdev->name); | |
218 | kfree_skb(skb); | |
219 | return ERR_PTR(-EIO); | |
220 | } | |
221 | ||
222 | return skb; | |
223 | } | |
224 | ||
225 | static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev) | |
226 | { | |
227 | struct sk_buff *skb; | |
228 | ||
229 | skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT); | |
230 | if (IS_ERR(skb)) { | |
231 | BT_ERR("%s: BCM: Read USB product info failed (%ld)", | |
232 | hdev->name, PTR_ERR(skb)); | |
233 | return skb; | |
234 | } | |
235 | ||
236 | if (skb->len != 5) { | |
237 | BT_ERR("%s: BCM: USB product length mismatch", hdev->name); | |
238 | kfree_skb(skb); | |
239 | return ERR_PTR(-EIO); | |
240 | } | |
241 | ||
242 | return skb; | |
243 | } | |
244 | ||
245 | static const struct { | |
246 | u16 subver; | |
247 | const char *name; | |
9a0bb57d | 248 | } bcm_uart_subver_table[] = { |
4a546ec3 | 249 | { 0x4103, "BCM4330B1" }, /* 002.001.003 */ |
9a0bb57d | 250 | { 0x410e, "BCM43341B0" }, /* 002.001.014 */ |
a8f3b941 | 251 | { 0x4406, "BCM4324B3" }, /* 002.004.006 */ |
40db5f0e | 252 | { 0x610c, "BCM4354" }, /* 003.001.012 */ |
9a0bb57d MH |
253 | { } |
254 | }; | |
255 | ||
75e167e6 FD |
256 | int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len) |
257 | { | |
258 | u16 subver, rev; | |
259 | const char *hw_name = NULL; | |
260 | struct sk_buff *skb; | |
261 | struct hci_rp_read_local_version *ver; | |
262 | int i, err; | |
263 | ||
264 | /* Reset */ | |
265 | err = btbcm_reset(hdev); | |
266 | if (err) | |
267 | return err; | |
268 | ||
269 | /* Read Local Version Info */ | |
270 | skb = btbcm_read_local_version(hdev); | |
271 | if (IS_ERR(skb)) | |
272 | return PTR_ERR(skb); | |
273 | ||
274 | ver = (struct hci_rp_read_local_version *)skb->data; | |
275 | rev = le16_to_cpu(ver->hci_rev); | |
276 | subver = le16_to_cpu(ver->lmp_subver); | |
277 | kfree_skb(skb); | |
278 | ||
279 | /* Read Verbose Config Version Info */ | |
280 | skb = btbcm_read_verbose_config(hdev); | |
281 | if (IS_ERR(skb)) | |
282 | return PTR_ERR(skb); | |
283 | ||
284 | BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]); | |
285 | kfree_skb(skb); | |
286 | ||
287 | switch ((rev & 0xf000) >> 12) { | |
288 | case 0: | |
40db5f0e | 289 | case 1: |
75e167e6 FD |
290 | case 3: |
291 | for (i = 0; bcm_uart_subver_table[i].name; i++) { | |
292 | if (subver == bcm_uart_subver_table[i].subver) { | |
293 | hw_name = bcm_uart_subver_table[i].name; | |
294 | break; | |
295 | } | |
296 | } | |
297 | ||
298 | snprintf(fw_name, len, "brcm/%s.hcd", hw_name ? : "BCM"); | |
299 | break; | |
300 | default: | |
301 | return 0; | |
302 | } | |
303 | ||
304 | BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name, | |
305 | hw_name ? : "BCM", (subver & 0x7000) >> 13, | |
306 | (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); | |
307 | ||
308 | return 0; | |
309 | } | |
310 | EXPORT_SYMBOL_GPL(btbcm_initialize); | |
311 | ||
312 | int btbcm_finalize(struct hci_dev *hdev) | |
313 | { | |
314 | struct sk_buff *skb; | |
315 | struct hci_rp_read_local_version *ver; | |
316 | u16 subver, rev; | |
317 | int err; | |
318 | ||
319 | /* Reset */ | |
320 | err = btbcm_reset(hdev); | |
321 | if (err) | |
322 | return err; | |
323 | ||
324 | /* Read Local Version Info */ | |
325 | skb = btbcm_read_local_version(hdev); | |
326 | if (IS_ERR(skb)) | |
327 | return PTR_ERR(skb); | |
328 | ||
329 | ver = (struct hci_rp_read_local_version *)skb->data; | |
330 | rev = le16_to_cpu(ver->hci_rev); | |
331 | subver = le16_to_cpu(ver->lmp_subver); | |
332 | kfree_skb(skb); | |
333 | ||
334 | BT_INFO("%s: BCM (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name, | |
335 | (subver & 0x7000) >> 13, (subver & 0x1f00) >> 8, | |
336 | (subver & 0x00ff), rev & 0x0fff); | |
337 | ||
338 | btbcm_check_bdaddr(hdev); | |
339 | ||
340 | set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); | |
341 | ||
342 | return 0; | |
343 | } | |
344 | EXPORT_SYMBOL_GPL(btbcm_finalize); | |
345 | ||
9a0bb57d MH |
346 | static const struct { |
347 | u16 subver; | |
348 | const char *name; | |
349 | } bcm_usb_subver_table[] = { | |
1c8ba6d0 MH |
350 | { 0x210b, "BCM43142A0" }, /* 001.001.011 */ |
351 | { 0x2112, "BCM4314A0" }, /* 001.001.018 */ | |
352 | { 0x2118, "BCM20702A0" }, /* 001.001.024 */ | |
353 | { 0x2126, "BCM4335A0" }, /* 001.001.038 */ | |
354 | { 0x220e, "BCM20702A1" }, /* 001.002.014 */ | |
355 | { 0x230f, "BCM4354A2" }, /* 001.003.015 */ | |
356 | { 0x4106, "BCM4335B0" }, /* 002.001.006 */ | |
357 | { 0x410e, "BCM20702B0" }, /* 002.001.014 */ | |
358 | { 0x6109, "BCM4335C0" }, /* 003.001.009 */ | |
359 | { 0x610c, "BCM4354" }, /* 003.001.012 */ | |
360 | { } | |
361 | }; | |
362 | ||
363 | int btbcm_setup_patchram(struct hci_dev *hdev) | |
364 | { | |
1c8ba6d0 | 365 | char fw_name[64]; |
18aeb444 | 366 | const struct firmware *fw; |
50862ee5 | 367 | u16 subver, rev, pid, vid; |
1c8ba6d0 MH |
368 | const char *hw_name = NULL; |
369 | struct sk_buff *skb; | |
370 | struct hci_rp_read_local_version *ver; | |
371 | int i, err; | |
372 | ||
373 | /* Reset */ | |
374 | err = btbcm_reset(hdev); | |
375 | if (err) | |
376 | return err; | |
377 | ||
378 | /* Read Local Version Info */ | |
379 | skb = btbcm_read_local_version(hdev); | |
380 | if (IS_ERR(skb)) | |
381 | return PTR_ERR(skb); | |
382 | ||
383 | ver = (struct hci_rp_read_local_version *)skb->data; | |
384 | rev = le16_to_cpu(ver->hci_rev); | |
385 | subver = le16_to_cpu(ver->lmp_subver); | |
386 | kfree_skb(skb); | |
387 | ||
388 | /* Read Verbose Config Version Info */ | |
389 | skb = btbcm_read_verbose_config(hdev); | |
390 | if (IS_ERR(skb)) | |
391 | return PTR_ERR(skb); | |
392 | ||
393 | BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]); | |
394 | kfree_skb(skb); | |
395 | ||
9a0bb57d MH |
396 | switch ((rev & 0xf000) >> 12) { |
397 | case 0: | |
a8f3b941 | 398 | case 3: |
9a0bb57d MH |
399 | for (i = 0; bcm_uart_subver_table[i].name; i++) { |
400 | if (subver == bcm_uart_subver_table[i].subver) { | |
401 | hw_name = bcm_uart_subver_table[i].name; | |
402 | break; | |
403 | } | |
404 | } | |
1c8ba6d0 | 405 | |
9a0bb57d MH |
406 | snprintf(fw_name, sizeof(fw_name), "brcm/%s.hcd", |
407 | hw_name ? : "BCM"); | |
408 | break; | |
409 | case 1: | |
410 | case 2: | |
411 | /* Read USB Product Info */ | |
412 | skb = btbcm_read_usb_product(hdev); | |
413 | if (IS_ERR(skb)) | |
414 | return PTR_ERR(skb); | |
415 | ||
416 | vid = get_unaligned_le16(skb->data + 1); | |
417 | pid = get_unaligned_le16(skb->data + 3); | |
418 | kfree_skb(skb); | |
1c8ba6d0 | 419 | |
9a0bb57d MH |
420 | for (i = 0; bcm_usb_subver_table[i].name; i++) { |
421 | if (subver == bcm_usb_subver_table[i].subver) { | |
422 | hw_name = bcm_usb_subver_table[i].name; | |
423 | break; | |
424 | } | |
1c8ba6d0 | 425 | } |
9a0bb57d MH |
426 | |
427 | snprintf(fw_name, sizeof(fw_name), "brcm/%s-%4.4x-%4.4x.hcd", | |
428 | hw_name ? : "BCM", vid, pid); | |
429 | break; | |
430 | default: | |
431 | return 0; | |
1c8ba6d0 MH |
432 | } |
433 | ||
434 | BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name, | |
435 | hw_name ? : "BCM", (subver & 0x7000) >> 13, | |
436 | (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); | |
437 | ||
18aeb444 FD |
438 | err = request_firmware(&fw, fw_name, &hdev->dev); |
439 | if (err < 0) { | |
440 | BT_INFO("%s: BCM: Patch %s not found", hdev->name, fw_name); | |
1c8ba6d0 | 441 | return 0; |
18aeb444 FD |
442 | } |
443 | ||
444 | btbcm_patchram(hdev, fw); | |
445 | ||
446 | release_firmware(fw); | |
1c8ba6d0 | 447 | |
1c8ba6d0 MH |
448 | /* Reset */ |
449 | err = btbcm_reset(hdev); | |
450 | if (err) | |
50862ee5 | 451 | return err; |
1c8ba6d0 MH |
452 | |
453 | /* Read Local Version Info */ | |
454 | skb = btbcm_read_local_version(hdev); | |
50862ee5 MH |
455 | if (IS_ERR(skb)) |
456 | return PTR_ERR(skb); | |
1c8ba6d0 MH |
457 | |
458 | ver = (struct hci_rp_read_local_version *)skb->data; | |
459 | rev = le16_to_cpu(ver->hci_rev); | |
460 | subver = le16_to_cpu(ver->lmp_subver); | |
461 | kfree_skb(skb); | |
462 | ||
463 | BT_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name, | |
464 | hw_name ? : "BCM", (subver & 0x7000) >> 13, | |
465 | (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); | |
466 | ||
467 | btbcm_check_bdaddr(hdev); | |
468 | ||
941521e2 MH |
469 | set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); |
470 | ||
50862ee5 | 471 | return 0; |
1c8ba6d0 MH |
472 | } |
473 | EXPORT_SYMBOL_GPL(btbcm_setup_patchram); | |
474 | ||
475 | int btbcm_setup_apple(struct hci_dev *hdev) | |
476 | { | |
477 | struct sk_buff *skb; | |
478 | ||
479 | /* Read Verbose Config Version Info */ | |
480 | skb = btbcm_read_verbose_config(hdev); | |
7bee8b08 CM |
481 | if (!IS_ERR(skb)) { |
482 | BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1], | |
483 | get_unaligned_le16(skb->data + 5)); | |
484 | kfree_skb(skb); | |
485 | } | |
1c8ba6d0 | 486 | |
941521e2 MH |
487 | set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); |
488 | ||
1c8ba6d0 MH |
489 | return 0; |
490 | } | |
491 | EXPORT_SYMBOL_GPL(btbcm_setup_apple); | |
492 | ||
4fba30f0 MH |
493 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
494 | MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION); | |
495 | MODULE_VERSION(VERSION); | |
496 | MODULE_LICENSE("GPL"); |