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Bluetooth: btintel: Export few static functions
[linux-2.6-block.git] / drivers / bluetooth / btintel.c
CommitLineData
1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
48f0ed1b
MH		 2/*
3 *
4 * Bluetooth support for Intel devices
5 *
6 * Copyright (C) 2015 Intel Corporation
48f0ed1b
MH		 7 */
8
9#include <linux/module.h>
145f2368 10#include <linux/firmware.h>
d06f107b 11#include <linux/regmap.h>
c585a92b 12#include <linux/acpi.h>
8f0a3786 13#include <acpi/acpi_bus.h>
fbbe83c5 14#include <asm/unaligned.h>
48f0ed1b
MH		 15
16#include <net/bluetooth/bluetooth.h>
17#include <net/bluetooth/hci_core.h>
18
19#include "btintel.h"
20
21#define VERSION "0.1"
22
81ebea53
K		 23#define BDADDR_INTEL (&(bdaddr_t){{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
24#define RSA_HEADER_LEN 644
25#define CSS_HEADER_OFFSET 8
26#define ECDSA_OFFSET 644
27#define ECDSA_HEADER_LEN 320
48f0ed1b 28
c585a92b 29#define BTINTEL_PPAG_NAME "PPAG"
294d749b 30
8f0a3786
K		 31enum {
32 DSM_SET_WDISABLE2_DELAY = 1,
33 DSM_SET_RESET_METHOD = 3,
34};
35
294d749b
K		 36/* structure to store the PPAG data read from ACPI table */
37struct btintel_ppag {
38 u32 domain;
39 u32 mode;
40 acpi_status status;
41 struct hci_dev *hdev;
42};
c585a92b 43
ac056546
LAD		 44#define CMD_WRITE_BOOT_PARAMS 0xfc0e
45struct cmd_write_boot_params {
069ab3f9 46 __le32 boot_addr;
ac056546
LAD		 47 u8 fw_build_num;
48 u8 fw_build_ww;
49 u8 fw_build_yy;
50} __packed;
51
af395330
APS		 52static struct {
53 const char *driver_name;
54 u8 hw_variant;
55 u32 fw_build_num;
56} coredump_info;
57
8f0a3786
K		 58static const guid_t btintel_guid_dsm =
59 GUID_INIT(0xaa10f4e0, 0x81ac, 0x4233,
60 0xab, 0xf6, 0x3b, 0x2a, 0xc5, 0x0e, 0x28, 0xd9);
61
48f0ed1b
MH		 62int btintel_check_bdaddr(struct hci_dev *hdev)
63{
64 struct hci_rp_read_bd_addr *bda;
65 struct sk_buff *skb;
66
67 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
68 HCI_INIT_TIMEOUT);
69 if (IS_ERR(skb)) {
70 int err = PTR_ERR(skb);
2064ee33
MH		 71 bt_dev_err(hdev, "Reading Intel device address failed (%d)",
72 err);
48f0ed1b
MH		 73 return err;
74 }
75
76 if (skb->len != sizeof(*bda)) {
2064ee33 77 bt_dev_err(hdev, "Intel device address length mismatch");
48f0ed1b
MH		 78 kfree_skb(skb);
79 return -EIO;
80 }
81
82 bda = (struct hci_rp_read_bd_addr *)skb->data;
48f0ed1b
MH		 83
84 /* For some Intel based controllers, the default Bluetooth device
85 * address 00:03:19:9E:8B:00 can be found. These controllers are
86 * fully operational, but have the danger of duplicate addresses
87 * and that in turn can cause problems with Bluetooth operation.
88 */
89 if (!bacmp(&bda->bdaddr, BDADDR_INTEL)) {
2064ee33
MH		 90 bt_dev_err(hdev, "Found Intel default device address (%pMR)",
91 &bda->bdaddr);
48f0ed1b
MH		 92 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
93 }
94
95 kfree_skb(skb);
96
97 return 0;
98}
99EXPORT_SYMBOL_GPL(btintel_check_bdaddr);
100
28dc4b92
LP		 101int btintel_enter_mfg(struct hci_dev *hdev)
102{
948c7ca0 103 static const u8 param[] = { 0x01, 0x00 };
28dc4b92
LP		 104 struct sk_buff *skb;
105
106 skb = __hci_cmd_sync(hdev, 0xfc11, 2, param, HCI_CMD_TIMEOUT);
107 if (IS_ERR(skb)) {
108 bt_dev_err(hdev, "Entering manufacturer mode failed (%ld)",
109 PTR_ERR(skb));
110 return PTR_ERR(skb);
111 }
112 kfree_skb(skb);
113
114 return 0;
115}
116EXPORT_SYMBOL_GPL(btintel_enter_mfg);
117
118int btintel_exit_mfg(struct hci_dev *hdev, bool reset, bool patched)
119{
120 u8 param[] = { 0x00, 0x00 };
121 struct sk_buff *skb;
122
123 /* The 2nd command parameter specifies the manufacturing exit method:
124 * 0x00: Just disable the manufacturing mode (0x00).
125 * 0x01: Disable manufacturing mode and reset with patches deactivated.
126 * 0x02: Disable manufacturing mode and reset with patches activated.
127 */
128 if (reset)
129 param[1] |= patched ? 0x02 : 0x01;
130
131 skb = __hci_cmd_sync(hdev, 0xfc11, 2, param, HCI_CMD_TIMEOUT);
132 if (IS_ERR(skb)) {
133 bt_dev_err(hdev, "Exiting manufacturer mode failed (%ld)",
134 PTR_ERR(skb));
135 return PTR_ERR(skb);
136 }
137 kfree_skb(skb);
138
139 return 0;
140}
141EXPORT_SYMBOL_GPL(btintel_exit_mfg);
142
48f0ed1b
MH		 143int btintel_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
144{
145 struct sk_buff *skb;
146 int err;
147
148 skb = __hci_cmd_sync(hdev, 0xfc31, 6, bdaddr, HCI_INIT_TIMEOUT);
149 if (IS_ERR(skb)) {
150 err = PTR_ERR(skb);
2064ee33
MH		 151 bt_dev_err(hdev, "Changing Intel device address failed (%d)",
152 err);
48f0ed1b
MH		 153 return err;
154 }
155 kfree_skb(skb);
156
157 return 0;
158}
159EXPORT_SYMBOL_GPL(btintel_set_bdaddr);
160
0d8603b4
THJA		 161static int btintel_set_event_mask(struct hci_dev *hdev, bool debug)
162{
163 u8 mask[8] = { 0x87, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
164 struct sk_buff *skb;
165 int err;
166
167 if (debug)
168 mask[1] |= 0x62;
169
170 skb = __hci_cmd_sync(hdev, 0xfc52, 8, mask, HCI_INIT_TIMEOUT);
171 if (IS_ERR(skb)) {
172 err = PTR_ERR(skb);
173 bt_dev_err(hdev, "Setting Intel event mask failed (%d)", err);
174 return err;
175 }
176 kfree_skb(skb);
177
178 return 0;
179}
180
6d2e50d2
MH		 181int btintel_set_diag(struct hci_dev *hdev, bool enable)
182{
183 struct sk_buff *skb;
184 u8 param[3];
185 int err;
186
6d2e50d2
MH		 187 if (enable) {
188 param[0] = 0x03;
189 param[1] = 0x03;
190 param[2] = 0x03;
191 } else {
192 param[0] = 0x00;
193 param[1] = 0x00;
194 param[2] = 0x00;
195 }
196
197 skb = __hci_cmd_sync(hdev, 0xfc43, 3, param, HCI_INIT_TIMEOUT);
198 if (IS_ERR(skb)) {
199 err = PTR_ERR(skb);
d8270fbb 200 if (err == -ENODATA)
213445b2 201 goto done;
2064ee33
MH		 202 bt_dev_err(hdev, "Changing Intel diagnostic mode failed (%d)",
203 err);
6d2e50d2
MH		 204 return err;
205 }
206 kfree_skb(skb);
207
213445b2
MH		 208done:
209 btintel_set_event_mask(hdev, enable);
6d2e50d2
MH		 210 return 0;
211}
212EXPORT_SYMBOL_GPL(btintel_set_diag);
213
83f2dafe 214static int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable)
3e24767b 215{
28dc4b92 216 int err, ret;
3e24767b 217
28dc4b92
LP		 218 err = btintel_enter_mfg(hdev);
219 if (err)
220 return err;
3e24767b 221
28dc4b92 222 ret = btintel_set_diag(hdev, enable);
3e24767b 223
28dc4b92
LP		 224 err = btintel_exit_mfg(hdev, false, false);
225 if (err)
226 return err;
3e24767b 227
28dc4b92 228 return ret;
3e24767b 229}
3e24767b 230
55380714
THJA		 231static int btintel_set_diag_combined(struct hci_dev *hdev, bool enable)
232{
233 int ret;
234
235 /* Legacy ROM device needs to be in the manufacturer mode to apply
236 * diagnostic setting
237 *
238 * This flag is set after reading the Intel version.
239 */
240 if (btintel_test_flag(hdev, INTEL_ROM_LEGACY))
241 ret = btintel_set_diag_mfg(hdev, enable);
242 else
243 ret = btintel_set_diag(hdev, enable);
244
245 return ret;
246}
247
67d4dbac 248void btintel_hw_error(struct hci_dev *hdev, u8 code)
973bb97e
MH		 249{
250 struct sk_buff *skb;
251 u8 type = 0x00;
252
2064ee33 253 bt_dev_err(hdev, "Hardware error 0x%2.2x", code);
973bb97e
MH		 254
255 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
256 if (IS_ERR(skb)) {
2064ee33
MH		 257 bt_dev_err(hdev, "Reset after hardware error failed (%ld)",
258 PTR_ERR(skb));
973bb97e
MH		 259 return;
260 }
261 kfree_skb(skb);
262
263 skb = __hci_cmd_sync(hdev, 0xfc22, 1, &type, HCI_INIT_TIMEOUT);
264 if (IS_ERR(skb)) {
2064ee33
MH		 265 bt_dev_err(hdev, "Retrieving Intel exception info failed (%ld)",
266 PTR_ERR(skb));
973bb97e
MH		 267 return;
268 }
269
270 if (skb->len != 13) {
2064ee33 271 bt_dev_err(hdev, "Exception info size mismatch");
973bb97e
MH		 272 kfree_skb(skb);
273 return;
274 }
275
2064ee33 276 bt_dev_err(hdev, "Exception info %s", (char *)(skb->data + 1));
973bb97e
MH		 277
278 kfree_skb(skb);
279}
67d4dbac 280EXPORT_SYMBOL_GPL(btintel_hw_error);
973bb97e 281
d68903da 282int btintel_version_info(struct hci_dev *hdev, struct intel_version *ver)
7feb99e1
MH		 283{
284 const char *variant;
285
d68903da
LAD		 286 /* The hardware platform number has a fixed value of 0x37 and
287 * for now only accept this single value.
288 */
289 if (ver->hw_platform != 0x37) {
290 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)",
291 ver->hw_platform);
292 return -EINVAL;
293 }
294
295 /* Check for supported iBT hardware variants of this firmware
296 * loading method.
297 *
298 * This check has been put in place to ensure correct forward
299 * compatibility options when newer hardware variants come along.
300 */
301 switch (ver->hw_variant) {
ca5425e1
THJA		 302 case 0x07: /* WP - Legacy ROM */
303 case 0x08: /* StP - Legacy ROM */
d68903da
LAD		 304 case 0x0b: /* SfP */
305 case 0x0c: /* WsP */
306 case 0x11: /* JfP */
307 case 0x12: /* ThP */
308 case 0x13: /* HrP */
309 case 0x14: /* CcP */
310 break;
311 default:
312 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
313 ver->hw_variant);
314 return -EINVAL;
315 }
316
7feb99e1 317 switch (ver->fw_variant) {
ca5425e1
THJA		 318 case 0x01:
319 variant = "Legacy ROM 2.5";
320 break;
7feb99e1
MH		 321 case 0x06:
322 variant = "Bootloader";
323 break;
ca5425e1
THJA		 324 case 0x22:
325 variant = "Legacy ROM 2.x";
326 break;
7feb99e1
MH		 327 case 0x23:
328 variant = "Firmware";
329 break;
330 default:
d68903da
LAD		 331 bt_dev_err(hdev, "Unsupported firmware variant(%02x)", ver->fw_variant);
332 return -EINVAL;
7feb99e1
MH		 333 }
334
af395330
APS		 335 coredump_info.hw_variant = ver->hw_variant;
336 coredump_info.fw_build_num = ver->fw_build_num;
337
2064ee33
MH		 338 bt_dev_info(hdev, "%s revision %u.%u build %u week %u %u",
339 variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
340 ver->fw_build_num, ver->fw_build_ww,
341 2000 + ver->fw_build_yy);
d68903da
LAD		 342
343 return 0;
7feb99e1
MH		 344}
345EXPORT_SYMBOL_GPL(btintel_version_info);
346
0d8603b4
THJA		 347static int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen,
348 const void *param)
09df123d
MH		 349{
350 while (plen > 0) {
351 struct sk_buff *skb;
352 u8 cmd_param[253], fragment_len = (plen > 252) ? 252 : plen;
353
354 cmd_param[0] = fragment_type;
355 memcpy(cmd_param + 1, param, fragment_len);
356
357 skb = __hci_cmd_sync(hdev, 0xfc09, fragment_len + 1,
358 cmd_param, HCI_INIT_TIMEOUT);
359 if (IS_ERR(skb))
360 return PTR_ERR(skb);
361
362 kfree_skb(skb);
363
364 plen -= fragment_len;
365 param += fragment_len;
366 }
367
368 return 0;
369}
09df123d 370
145f2368
LP		 371int btintel_load_ddc_config(struct hci_dev *hdev, const char *ddc_name)
372{
373 const struct firmware *fw;
374 struct sk_buff *skb;
375 const u8 *fw_ptr;
376 int err;
377
378 err = request_firmware_direct(&fw, ddc_name, &hdev->dev);
379 if (err < 0) {
380 bt_dev_err(hdev, "Failed to load Intel DDC file %s (%d)",
381 ddc_name, err);
382 return err;
383 }
384
385 bt_dev_info(hdev, "Found Intel DDC parameters: %s", ddc_name);
386
387 fw_ptr = fw->data;
388
389 /* DDC file contains one or more DDC structure which has
390 * Length (1 byte), DDC ID (2 bytes), and DDC value (Length - 2).
391 */
392 while (fw->size > fw_ptr - fw->data) {
393 u8 cmd_plen = fw_ptr[0] + sizeof(u8);
394
395 skb = __hci_cmd_sync(hdev, 0xfc8b, cmd_plen, fw_ptr,
396 HCI_INIT_TIMEOUT);
397 if (IS_ERR(skb)) {
398 bt_dev_err(hdev, "Failed to send Intel_Write_DDC (%ld)",
399 PTR_ERR(skb));
400 release_firmware(fw);
401 return PTR_ERR(skb);
402 }
403
404 fw_ptr += cmd_plen;
405 kfree_skb(skb);
406 }
407
408 release_firmware(fw);
409
410 bt_dev_info(hdev, "Applying Intel DDC parameters completed");
411
412 return 0;
413}
414EXPORT_SYMBOL_GPL(btintel_load_ddc_config);
415
213445b2
MH		 416int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug)
417{
28dc4b92 418 int err, ret;
213445b2 419
28dc4b92
LP		 420 err = btintel_enter_mfg(hdev);
421 if (err)
422 return err;
213445b2 423
28dc4b92 424 ret = btintel_set_event_mask(hdev, debug);
213445b2 425
28dc4b92
LP		 426 err = btintel_exit_mfg(hdev, false, false);
427 if (err)
428 return err;
213445b2 429
28dc4b92 430 return ret;
213445b2
MH		 431}
432EXPORT_SYMBOL_GPL(btintel_set_event_mask_mfg);
433
6c483de1
LP		 434int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver)
435{
436 struct sk_buff *skb;
437
438 skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_CMD_TIMEOUT);
6e62ebfb 439 if (IS_ERR(skb)) {
6c483de1
LP		 440 bt_dev_err(hdev, "Reading Intel version information failed (%ld)",
441 PTR_ERR(skb));
442 return PTR_ERR(skb);
443 }
444
6e62ebfb 445 if (!skb || skb->len != sizeof(*ver)) {
6c483de1
LP		 446 bt_dev_err(hdev, "Intel version event size mismatch");
447 kfree_skb(skb);
448 return -EILSEQ;
449 }
450
451 memcpy(ver, skb->data, sizeof(*ver));
452
453 kfree_skb(skb);
454
455 return 0;
456}
457EXPORT_SYMBOL_GPL(btintel_read_version);
458
67d4dbac
K		 459int btintel_version_info_tlv(struct hci_dev *hdev,
460 struct intel_version_tlv *version)
57375bee
K		 461{
462 const char *variant;
463
0a460d8f
LAD		 464 /* The hardware platform number has a fixed value of 0x37 and
465 * for now only accept this single value.
466 */
467 if (INTEL_HW_PLATFORM(version->cnvi_bt) != 0x37) {
468 bt_dev_err(hdev, "Unsupported Intel hardware platform (0x%2x)",
469 INTEL_HW_PLATFORM(version->cnvi_bt));
470 return -EINVAL;
471 }
472
473 /* Check for supported iBT hardware variants of this firmware
474 * loading method.
475 *
476 * This check has been put in place to ensure correct forward
477 * compatibility options when newer hardware variants come along.
478 */
479 switch (INTEL_HW_VARIANT(version->cnvi_bt)) {
480 case 0x17: /* TyP */
481 case 0x18: /* Slr */
482 case 0x19: /* Slr-F */
b43331b4 483 case 0x1b: /* Mgr */
bb925bf9 484 case 0x1c: /* Gale Peak (GaP) */
87ad06a2 485 case 0x1e: /* BlazarI (Bzr) */
0a460d8f
LAD		 486 break;
487 default:
488 bt_dev_err(hdev, "Unsupported Intel hardware variant (0x%x)",
489 INTEL_HW_VARIANT(version->cnvi_bt));
490 return -EINVAL;
491 }
492
57375bee 493 switch (version->img_type) {
5ec6feb1 494 case BTINTEL_IMG_BOOTLOADER:
57375bee 495 variant = "Bootloader";
7de3a42c
LS		 496 /* It is required that every single firmware fragment is acknowledged
497 * with a command complete event. If the boot parameters indicate
498 * that this bootloader does not send them, then abort the setup.
499 */
500 if (version->limited_cce != 0x00) {
501 bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)",
502 version->limited_cce);
503 return -EINVAL;
504 }
505
506 /* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */
507 if (version->sbe_type > 0x01) {
508 bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)",
509 version->sbe_type);
510 return -EINVAL;
511 }
512
57375bee
K		 513 bt_dev_info(hdev, "Device revision is %u", version->dev_rev_id);
514 bt_dev_info(hdev, "Secure boot is %s",
515 version->secure_boot ? "enabled" : "disabled");
516 bt_dev_info(hdev, "OTP lock is %s",
517 version->otp_lock ? "enabled" : "disabled");
518 bt_dev_info(hdev, "API lock is %s",
519 version->api_lock ? "enabled" : "disabled");
520 bt_dev_info(hdev, "Debug lock is %s",
521 version->debug_lock ? "enabled" : "disabled");
522 bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
523 version->min_fw_build_nn, version->min_fw_build_cw,
524 2000 + version->min_fw_build_yy);
525 break;
f3b845e0
K		 526 case BTINTEL_IMG_IML:
527 variant = "Intermediate loader";
528 break;
5ec6feb1 529 case BTINTEL_IMG_OP:
57375bee
K		 530 variant = "Firmware";
531 break;
532 default:
533 bt_dev_err(hdev, "Unsupported image type(%02x)", version->img_type);
0a460d8f 534 return -EINVAL;
57375bee
K		 535 }
536
af395330
APS		 537 coredump_info.hw_variant = INTEL_HW_VARIANT(version->cnvi_bt);
538 coredump_info.fw_build_num = version->build_num;
539
57375bee
K		 540 bt_dev_info(hdev, "%s timestamp %u.%u buildtype %u build %u", variant,
541 2000 + (version->timestamp >> 8), version->timestamp & 0xff,
542 version->build_type, version->build_num);
5ec6feb1 543 if (version->img_type == BTINTEL_IMG_OP)
a2e7707b 544 bt_dev_info(hdev, "Firmware SHA1: 0x%8.8x", version->git_sha1);
57375bee 545
0a460d8f 546 return 0;
57375bee 547}
67d4dbac 548EXPORT_SYMBOL_GPL(btintel_version_info_tlv);
57375bee 549
67d4dbac
K		 550int btintel_parse_version_tlv(struct hci_dev *hdev,
551 struct intel_version_tlv *version,
552 struct sk_buff *skb)
ca5425e1
THJA		 553{
554 /* Consume Command Complete Status field */
555 skb_pull(skb, 1);
556
557 /* Event parameters contatin multiple TLVs. Read each of them
558 * and only keep the required data. Also, it use existing legacy
559 * version field like hw_platform, hw_variant, and fw_variant
560 * to keep the existing setup flow
561 */
562 while (skb->len) {
563 struct intel_tlv *tlv;
564
565 /* Make sure skb has a minimum length of the header */
566 if (skb->len < sizeof(*tlv))
567 return -EINVAL;
568
569 tlv = (struct intel_tlv *)skb->data;
570
571 /* Make sure skb has a enough data */
572 if (skb->len < tlv->len + sizeof(*tlv))
573 return -EINVAL;
574
575 switch (tlv->type) {
576 case INTEL_TLV_CNVI_TOP:
577 version->cnvi_top = get_unaligned_le32(tlv->val);
578 break;
579 case INTEL_TLV_CNVR_TOP:
580 version->cnvr_top = get_unaligned_le32(tlv->val);
581 break;
582 case INTEL_TLV_CNVI_BT:
583 version->cnvi_bt = get_unaligned_le32(tlv->val);
584 break;
585 case INTEL_TLV_CNVR_BT:
586 version->cnvr_bt = get_unaligned_le32(tlv->val);
587 break;
588 case INTEL_TLV_DEV_REV_ID:
589 version->dev_rev_id = get_unaligned_le16(tlv->val);
590 break;
591 case INTEL_TLV_IMAGE_TYPE:
592 version->img_type = tlv->val[0];
593 break;
594 case INTEL_TLV_TIME_STAMP:
595 /* If image type is Operational firmware (0x03), then
596 * running FW Calendar Week and Year information can
597 * be extracted from Timestamp information
598 */
599 version->min_fw_build_cw = tlv->val[0];
600 version->min_fw_build_yy = tlv->val[1];
601 version->timestamp = get_unaligned_le16(tlv->val);
602 break;
603 case INTEL_TLV_BUILD_TYPE:
604 version->build_type = tlv->val[0];
605 break;
606 case INTEL_TLV_BUILD_NUM:
607 /* If image type is Operational firmware (0x03), then
608 * running FW build number can be extracted from the
609 * Build information
610 */
611 version->min_fw_build_nn = tlv->val[0];
612 version->build_num = get_unaligned_le32(tlv->val);
613 break;
614 case INTEL_TLV_SECURE_BOOT:
615 version->secure_boot = tlv->val[0];
616 break;
617 case INTEL_TLV_OTP_LOCK:
618 version->otp_lock = tlv->val[0];
619 break;
620 case INTEL_TLV_API_LOCK:
621 version->api_lock = tlv->val[0];
622 break;
623 case INTEL_TLV_DEBUG_LOCK:
624 version->debug_lock = tlv->val[0];
625 break;
626 case INTEL_TLV_MIN_FW:
627 version->min_fw_build_nn = tlv->val[0];
628 version->min_fw_build_cw = tlv->val[1];
629 version->min_fw_build_yy = tlv->val[2];
630 break;
631 case INTEL_TLV_LIMITED_CCE:
632 version->limited_cce = tlv->val[0];
633 break;
634 case INTEL_TLV_SBE_TYPE:
635 version->sbe_type = tlv->val[0];
636 break;
637 case INTEL_TLV_OTP_BDADDR:
638 memcpy(&version->otp_bd_addr, tlv->val,
639 sizeof(bdaddr_t));
640 break;
a2e7707b
K		 641 case INTEL_TLV_GIT_SHA1:
642 version->git_sha1 = get_unaligned_le32(tlv->val);
643 break;
ca5425e1
THJA		 644 default:
645 /* Ignore rest of information */
646 break;
647 }
648 /* consume the current tlv and move to next*/
649 skb_pull(skb, tlv->len + sizeof(*tlv));
650 }
651
652 return 0;
653}
67d4dbac 654EXPORT_SYMBOL_GPL(btintel_parse_version_tlv);
ca5425e1 655
0d8603b4
THJA		 656static int btintel_read_version_tlv(struct hci_dev *hdev,
657 struct intel_version_tlv *version)
57375bee
K		 658{
659 struct sk_buff *skb;
660 const u8 param[1] = { 0xFF };
661
662 if (!version)
663 return -EINVAL;
664
665 skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT);
666 if (IS_ERR(skb)) {
667 bt_dev_err(hdev, "Reading Intel version information failed (%ld)",
668 PTR_ERR(skb));
669 return PTR_ERR(skb);
670 }
671
672 if (skb->data[0]) {
673 bt_dev_err(hdev, "Intel Read Version command failed (%02x)",
674 skb->data[0]);
675 kfree_skb(skb);
676 return -EIO;
677 }
678
019a1caa 679 btintel_parse_version_tlv(hdev, version, skb);
57375bee
K		 680
681 kfree_skb(skb);
682 return 0;
683}
57375bee 684
d06f107b
LP		 685/* ------- REGMAP IBT SUPPORT ------- */
686
687#define IBT_REG_MODE_8BIT 0x00
688#define IBT_REG_MODE_16BIT 0x01
689#define IBT_REG_MODE_32BIT 0x02
690
691struct regmap_ibt_context {
692 struct hci_dev *hdev;
693 __u16 op_write;
694 __u16 op_read;
695};
696
697struct ibt_cp_reg_access {
698 __le32 addr;
699 __u8 mode;
700 __u8 len;
683cc86d 701 __u8 data[];
d06f107b
LP		 702} __packed;
703
704struct ibt_rp_reg_access {
705 __u8 status;
706 __le32 addr;
683cc86d 707 __u8 data[];
d06f107b
LP		 708} __packed;
709
710static int regmap_ibt_read(void *context, const void *addr, size_t reg_size,
711 void *val, size_t val_size)
712{
713 struct regmap_ibt_context *ctx = context;
714 struct ibt_cp_reg_access cp;
715 struct ibt_rp_reg_access *rp;
716 struct sk_buff *skb;
717 int err = 0;
718
719 if (reg_size != sizeof(__le32))
720 return -EINVAL;
721
722 switch (val_size) {
723 case 1:
724 cp.mode = IBT_REG_MODE_8BIT;
725 break;
726 case 2:
727 cp.mode = IBT_REG_MODE_16BIT;
728 break;
729 case 4:
730 cp.mode = IBT_REG_MODE_32BIT;
731 break;
732 default:
733 return -EINVAL;
734 }
735
736 /* regmap provides a little-endian formatted addr */
737 cp.addr = *(__le32 *)addr;
738 cp.len = val_size;
739
740 bt_dev_dbg(ctx->hdev, "Register (0x%x) read", le32_to_cpu(cp.addr));
741
742 skb = hci_cmd_sync(ctx->hdev, ctx->op_read, sizeof(cp), &cp,
743 HCI_CMD_TIMEOUT);
744 if (IS_ERR(skb)) {
745 err = PTR_ERR(skb);
746 bt_dev_err(ctx->hdev, "regmap: Register (0x%x) read error (%d)",
747 le32_to_cpu(cp.addr), err);
748 return err;
749 }
750
751 if (skb->len != sizeof(*rp) + val_size) {
752 bt_dev_err(ctx->hdev, "regmap: Register (0x%x) read error, bad len",
753 le32_to_cpu(cp.addr));
754 err = -EINVAL;
755 goto done;
756 }
757
758 rp = (struct ibt_rp_reg_access *)skb->data;
759
760 if (rp->addr != cp.addr) {
761 bt_dev_err(ctx->hdev, "regmap: Register (0x%x) read error, bad addr",
762 le32_to_cpu(rp->addr));
763 err = -EINVAL;
764 goto done;
765 }
766
767 memcpy(val, rp->data, val_size);
768
769done:
770 kfree_skb(skb);
771 return err;
772}
773
774static int regmap_ibt_gather_write(void *context,
775 const void *addr, size_t reg_size,
776 const void *val, size_t val_size)
777{
778 struct regmap_ibt_context *ctx = context;
779 struct ibt_cp_reg_access *cp;
780 struct sk_buff *skb;
781 int plen = sizeof(*cp) + val_size;
782 u8 mode;
783 int err = 0;
784
785 if (reg_size != sizeof(__le32))
786 return -EINVAL;
787
788 switch (val_size) {
789 case 1:
790 mode = IBT_REG_MODE_8BIT;
791 break;
792 case 2:
793 mode = IBT_REG_MODE_16BIT;
794 break;
795 case 4:
796 mode = IBT_REG_MODE_32BIT;
797 break;
798 default:
799 return -EINVAL;
800 }
801
802 cp = kmalloc(plen, GFP_KERNEL);
803 if (!cp)
804 return -ENOMEM;
805
806 /* regmap provides a little-endian formatted addr/value */
807 cp->addr = *(__le32 *)addr;
808 cp->mode = mode;
809 cp->len = val_size;
810 memcpy(&cp->data, val, val_size);
811
812 bt_dev_dbg(ctx->hdev, "Register (0x%x) write", le32_to_cpu(cp->addr));
813
814 skb = hci_cmd_sync(ctx->hdev, ctx->op_write, plen, cp, HCI_CMD_TIMEOUT);
815 if (IS_ERR(skb)) {
816 err = PTR_ERR(skb);
817 bt_dev_err(ctx->hdev, "regmap: Register (0x%x) write error (%d)",
818 le32_to_cpu(cp->addr), err);
819 goto done;
820 }
821 kfree_skb(skb);
822
823done:
824 kfree(cp);
825 return err;
826}
827
828static int regmap_ibt_write(void *context, const void *data, size_t count)
829{
830 /* data contains register+value, since we only support 32bit addr,
831 * minimum data size is 4 bytes.
832 */
833 if (WARN_ONCE(count < 4, "Invalid register access"))
834 return -EINVAL;
835
836 return regmap_ibt_gather_write(context, data, 4, data + 4, count - 4);
837}
838
839static void regmap_ibt_free_context(void *context)
840{
841 kfree(context);
842}
843
bf7380e2 844static const struct regmap_bus regmap_ibt = {
d06f107b
LP		 845 .read = regmap_ibt_read,
846 .write = regmap_ibt_write,
847 .gather_write = regmap_ibt_gather_write,
848 .free_context = regmap_ibt_free_context,
849 .reg_format_endian_default = REGMAP_ENDIAN_LITTLE,
850 .val_format_endian_default = REGMAP_ENDIAN_LITTLE,
851};
852
853/* Config is the same for all register regions */
854static const struct regmap_config regmap_ibt_cfg = {
855 .name = "btintel_regmap",
856 .reg_bits = 32,
857 .val_bits = 32,
858};
859
860struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read,
861 u16 opcode_write)
862{
863 struct regmap_ibt_context *ctx;
864
865 bt_dev_info(hdev, "regmap: Init R%x-W%x region", opcode_read,
866 opcode_write);
867
868 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
869 if (!ctx)
870 return ERR_PTR(-ENOMEM);
871
872 ctx->op_read = opcode_read;
873 ctx->op_write = opcode_write;
874 ctx->hdev = hdev;
875
876 return regmap_init(&hdev->dev, &regmap_ibt, ctx, &regmap_ibt_cfg);
877}
878EXPORT_SYMBOL_GPL(btintel_regmap_init);
879
e5889af6
THJA		 880int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param)
881{
882 struct intel_reset params = { 0x00, 0x01, 0x00, 0x01, 0x00000000 };
883 struct sk_buff *skb;
884
885 params.boot_param = cpu_to_le32(boot_param);
886
887 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(params), &params,
888 HCI_INIT_TIMEOUT);
889 if (IS_ERR(skb)) {
890 bt_dev_err(hdev, "Failed to send Intel Reset command");
891 return PTR_ERR(skb);
892 }
893
894 kfree_skb(skb);
895
896 return 0;
897}
898EXPORT_SYMBOL_GPL(btintel_send_intel_reset);
899
faf174d2
THJA		 900int btintel_read_boot_params(struct hci_dev *hdev,
901 struct intel_boot_params *params)
902{
903 struct sk_buff *skb;
904
905 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
906 if (IS_ERR(skb)) {
907 bt_dev_err(hdev, "Reading Intel boot parameters failed (%ld)",
908 PTR_ERR(skb));
909 return PTR_ERR(skb);
910 }
911
912 if (skb->len != sizeof(*params)) {
913 bt_dev_err(hdev, "Intel boot parameters size mismatch");
914 kfree_skb(skb);
915 return -EILSEQ;
916 }
917
918 memcpy(params, skb->data, sizeof(*params));
919
920 kfree_skb(skb);
921
922 if (params->status) {
923 bt_dev_err(hdev, "Intel boot parameters command failed (%02x)",
924 params->status);
925 return -bt_to_errno(params->status);
926 }
927
928 bt_dev_info(hdev, "Device revision is %u",
929 le16_to_cpu(params->dev_revid));
930
931 bt_dev_info(hdev, "Secure boot is %s",
932 params->secure_boot ? "enabled" : "disabled");
933
934 bt_dev_info(hdev, "OTP lock is %s",
935 params->otp_lock ? "enabled" : "disabled");
936
937 bt_dev_info(hdev, "API lock is %s",
938 params->api_lock ? "enabled" : "disabled");
939
940 bt_dev_info(hdev, "Debug lock is %s",
941 params->debug_lock ? "enabled" : "disabled");
942
943 bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
944 params->min_fw_build_nn, params->min_fw_build_cw,
945 2000 + params->min_fw_build_yy);
946
947 return 0;
948}
949EXPORT_SYMBOL_GPL(btintel_read_boot_params);
950
e9117215
K		 951static int btintel_sfi_rsa_header_secure_send(struct hci_dev *hdev,
952 const struct firmware *fw)
fbbe83c5
THJA		 953{
954 int err;
fbbe83c5
THJA		 955
956 /* Start the firmware download transaction with the Init fragment
957 * represented by the 128 bytes of CSS header.
958 */
959 err = btintel_secure_send(hdev, 0x00, 128, fw->data);
960 if (err < 0) {
961 bt_dev_err(hdev, "Failed to send firmware header (%d)", err);
962 goto done;
963 }
964
965 /* Send the 256 bytes of public key information from the firmware
966 * as the PKey fragment.
967 */
968 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
969 if (err < 0) {
970 bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err);
971 goto done;
972 }
973
974 /* Send the 256 bytes of signature information from the firmware
975 * as the Sign fragment.
976 */
977 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
978 if (err < 0) {
979 bt_dev_err(hdev, "Failed to send firmware signature (%d)", err);
980 goto done;
981 }
982
e9117215
K		 983done:
984 return err;
985}
986
81ebea53
K		 987static int btintel_sfi_ecdsa_header_secure_send(struct hci_dev *hdev,
988 const struct firmware *fw)
989{
990 int err;
991
992 /* Start the firmware download transaction with the Init fragment
993 * represented by the 128 bytes of CSS header.
994 */
995 err = btintel_secure_send(hdev, 0x00, 128, fw->data + 644);
996 if (err < 0) {
997 bt_dev_err(hdev, "Failed to send firmware header (%d)", err);
998 return err;
999 }
1000
1001 /* Send the 96 bytes of public key information from the firmware
1002 * as the PKey fragment.
1003 */
1004 err = btintel_secure_send(hdev, 0x03, 96, fw->data + 644 + 128);
1005 if (err < 0) {
1006 bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err);
1007 return err;
1008 }
1009
1010 /* Send the 96 bytes of signature information from the firmware
1011 * as the Sign fragment
1012 */
1013 err = btintel_secure_send(hdev, 0x02, 96, fw->data + 644 + 224);
1014 if (err < 0) {
1015 bt_dev_err(hdev, "Failed to send firmware signature (%d)",
1016 err);
1017 return err;
1018 }
1019 return 0;
1020}
1021
e9117215
K		 1022static int btintel_download_firmware_payload(struct hci_dev *hdev,
1023 const struct firmware *fw,
ac056546 1024 size_t offset)
e9117215
K		 1025{
1026 int err;
1027 const u8 *fw_ptr;
1028 u32 frag_len;
1029
1030 fw_ptr = fw->data + offset;
fbbe83c5 1031 frag_len = 0;
e9117215 1032 err = -EINVAL;
fbbe83c5
THJA		 1033
1034 while (fw_ptr - fw->data < fw->size) {
1035 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
1036
fbbe83c5
THJA		 1037 frag_len += sizeof(*cmd) + cmd->plen;
1038
1039 /* The parameter length of the secure send command requires
1040 * a 4 byte alignment. It happens so that the firmware file
1041 * contains proper Intel_NOP commands to align the fragments
1042 * as needed.
1043 *
1044 * Send set of commands with 4 byte alignment from the
1045 * firmware data buffer as a single Data fragement.
1046 */
1047 if (!(frag_len % 4)) {
1048 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
1049 if (err < 0) {
1050 bt_dev_err(hdev,
1051 "Failed to send firmware data (%d)",
1052 err);
1053 goto done;
1054 }
1055
1056 fw_ptr += frag_len;
1057 frag_len = 0;
1058 }
1059 }
1060
1061done:
1062 return err;
1063}
e9117215 1064
ac056546
LAD		 1065static bool btintel_firmware_version(struct hci_dev *hdev,
1066 u8 num, u8 ww, u8 yy,
1067 const struct firmware *fw,
1068 u32 *boot_addr)
1069{
1070 const u8 *fw_ptr;
1071
1072 fw_ptr = fw->data;
1073
1074 while (fw_ptr - fw->data < fw->size) {
1075 struct hci_command_hdr *cmd = (void *)(fw_ptr);
1076
1077 /* Each SKU has a different reset parameter to use in the
1078 * HCI_Intel_Reset command and it is embedded in the firmware
1079 * data. So, instead of using static value per SKU, check
1080 * the firmware data and save it for later use.
1081 */
1082 if (le16_to_cpu(cmd->opcode) == CMD_WRITE_BOOT_PARAMS) {
1083 struct cmd_write_boot_params *params;
1084
1085 params = (void *)(fw_ptr + sizeof(*cmd));
1086
15a91f91
K		 1087 *boot_addr = le32_to_cpu(params->boot_addr);
1088
1089 bt_dev_info(hdev, "Boot Address: 0x%x", *boot_addr);
ac056546
LAD		 1090
1091 bt_dev_info(hdev, "Firmware Version: %u-%u.%u",
1092 params->fw_build_num, params->fw_build_ww,
1093 params->fw_build_yy);
1094
1095 return (num == params->fw_build_num &&
1096 ww == params->fw_build_ww &&
1097 yy == params->fw_build_yy);
1098 }
1099
1100 fw_ptr += sizeof(*cmd) + cmd->plen;
1101 }
1102
1103 return false;
1104}
1105
e9117215 1106int btintel_download_firmware(struct hci_dev *hdev,
ac056546 1107 struct intel_version *ver,
e9117215
K		 1108 const struct firmware *fw,
1109 u32 *boot_param)
1110{
1111 int err;
1112
ac056546
LAD		 1113 /* SfP and WsP don't seem to update the firmware version on file
1114 * so version checking is currently not possible.
1115 */
1116 switch (ver->hw_variant) {
1117 case 0x0b: /* SfP */
1118 case 0x0c: /* WsP */
1119 /* Skip version checking */
1120 break;
1121 default:
1f4ec585 1122
ac056546
LAD		 1123 /* Skip download if firmware has the same version */
1124 if (btintel_firmware_version(hdev, ver->fw_build_num,
1125 ver->fw_build_ww, ver->fw_build_yy,
1126 fw, boot_param)) {
1127 bt_dev_info(hdev, "Firmware already loaded");
1128 /* Return -EALREADY to indicate that the firmware has
1129 * already been loaded.
1130 */
1131 return -EALREADY;
1132 }
1133 }
1134
9b16bfbf
LAD		 1135 /* The firmware variant determines if the device is in bootloader
1136 * mode or is running operational firmware. The value 0x06 identifies
1137 * the bootloader and the value 0x23 identifies the operational
1138 * firmware.
1139 *
1140 * If the firmware version has changed that means it needs to be reset
1141 * to bootloader when operational so the new firmware can be loaded.
1142 */
1143 if (ver->fw_variant == 0x23)
1144 return -EINVAL;
1145
e9117215
K		 1146 err = btintel_sfi_rsa_header_secure_send(hdev, fw);
1147 if (err)
1148 return err;
1149
ac056546 1150 return btintel_download_firmware_payload(hdev, fw, RSA_HEADER_LEN);
e9117215 1151}
fbbe83c5
THJA		 1152EXPORT_SYMBOL_GPL(btintel_download_firmware);
1153
019a1caa
THJA		 1154static int btintel_download_fw_tlv(struct hci_dev *hdev,
1155 struct intel_version_tlv *ver,
1156 const struct firmware *fw, u32 *boot_param,
1157 u8 hw_variant, u8 sbe_type)
81ebea53
K		 1158{
1159 int err;
1160 u32 css_header_ver;
1161
35191a0f
K		 1162 /* Skip download if firmware has the same version */
1163 if (btintel_firmware_version(hdev, ver->min_fw_build_nn,
1164 ver->min_fw_build_cw,
1165 ver->min_fw_build_yy,
1166 fw, boot_param)) {
1167 bt_dev_info(hdev, "Firmware already loaded");
1168 /* Return -EALREADY to indicate that firmware has
1169 * already been loaded.
1170 */
1171 return -EALREADY;
ac056546
LAD		 1172 }
1173
9b16bfbf
LAD		 1174 /* The firmware variant determines if the device is in bootloader
1175 * mode or is running operational firmware. The value 0x01 identifies
1176 * the bootloader and the value 0x03 identifies the operational
1177 * firmware.
1178 *
1179 * If the firmware version has changed that means it needs to be reset
1180 * to bootloader when operational so the new firmware can be loaded.
1181 */
5ec6feb1 1182 if (ver->img_type == BTINTEL_IMG_OP)
9b16bfbf
LAD		 1183 return -EINVAL;
1184
81ebea53
K		 1185 /* iBT hardware variants 0x0b, 0x0c, 0x11, 0x12, 0x13, 0x14 support
1186 * only RSA secure boot engine. Hence, the corresponding sfi file will
1187 * have RSA header of 644 bytes followed by Command Buffer.
1188 *
1189 * iBT hardware variants 0x17, 0x18 onwards support both RSA and ECDSA
1190 * secure boot engine. As a result, the corresponding sfi file will
1191 * have RSA header of 644, ECDSA header of 320 bytes followed by
1192 * Command Buffer.
1193 *
1194 * CSS Header byte positions 0x08 to 0x0B represent the CSS Header
1195 * version: RSA(0x00010000) , ECDSA (0x00020000)
1196 */
1197 css_header_ver = get_unaligned_le32(fw->data + CSS_HEADER_OFFSET);
1198 if (css_header_ver != 0x00010000) {
1199 bt_dev_err(hdev, "Invalid CSS Header version");
1200 return -EINVAL;
1201 }
1202
1203 if (hw_variant <= 0x14) {
1204 if (sbe_type != 0x00) {
1205 bt_dev_err(hdev, "Invalid SBE type for hardware variant (%d)",
1206 hw_variant);
1207 return -EINVAL;
1208 }
1209
1210 err = btintel_sfi_rsa_header_secure_send(hdev, fw);
1211 if (err)
1212 return err;
1213
ac056546 1214 err = btintel_download_firmware_payload(hdev, fw, RSA_HEADER_LEN);
81ebea53
K		 1215 if (err)
1216 return err;
1217 } else if (hw_variant >= 0x17) {
1218 /* Check if CSS header for ECDSA follows the RSA header */
1219 if (fw->data[ECDSA_OFFSET] != 0x06)
1220 return -EINVAL;
1221
1222 /* Check if the CSS Header version is ECDSA(0x00020000) */
1223 css_header_ver = get_unaligned_le32(fw->data + ECDSA_OFFSET + CSS_HEADER_OFFSET);
1224 if (css_header_ver != 0x00020000) {
1225 bt_dev_err(hdev, "Invalid CSS Header version");
1226 return -EINVAL;
1227 }
1228
1229 if (sbe_type == 0x00) {
1230 err = btintel_sfi_rsa_header_secure_send(hdev, fw);
1231 if (err)
1232 return err;
1233
1234 err = btintel_download_firmware_payload(hdev, fw,
81ebea53
K		 1235 RSA_HEADER_LEN + ECDSA_HEADER_LEN);
1236 if (err)
1237 return err;
1238 } else if (sbe_type == 0x01) {
1239 err = btintel_sfi_ecdsa_header_secure_send(hdev, fw);
1240 if (err)
1241 return err;
1242
1243 err = btintel_download_firmware_payload(hdev, fw,
81ebea53
K		 1244 RSA_HEADER_LEN + ECDSA_HEADER_LEN);
1245 if (err)
1246 return err;
1247 }
1248 }
1249 return 0;
1250}
81ebea53 1251
0d8603b4 1252static void btintel_reset_to_bootloader(struct hci_dev *hdev)
b9a2562f
AB		 1253{
1254 struct intel_reset params;
1255 struct sk_buff *skb;
1256
1257 /* Send Intel Reset command. This will result in
1258 * re-enumeration of BT controller.
1259 *
1260 * Intel Reset parameter description:
1261 * reset_type : 0x00 (Soft reset),
1262 * 0x01 (Hard reset)
1263 * patch_enable : 0x00 (Do not enable),
1264 * 0x01 (Enable)
1265 * ddc_reload : 0x00 (Do not reload),
1266 * 0x01 (Reload)
1267 * boot_option: 0x00 (Current image),
1268 * 0x01 (Specified boot address)
1269 * boot_param: Boot address
1270 *
1271 */
1272 params.reset_type = 0x01;
1273 params.patch_enable = 0x01;
1274 params.ddc_reload = 0x01;
1275 params.boot_option = 0x00;
1276 params.boot_param = cpu_to_le32(0x00000000);
1277
1278 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(params),
1279 &params, HCI_INIT_TIMEOUT);
1280 if (IS_ERR(skb)) {
1281 bt_dev_err(hdev, "FW download error recovery failed (%ld)",
1282 PTR_ERR(skb));
1283 return;
1284 }
1285 bt_dev_info(hdev, "Intel reset sent to retry FW download");
1286 kfree_skb(skb);
1287
1288 /* Current Intel BT controllers(ThP/JfP) hold the USB reset
1289 * lines for 2ms when it receives Intel Reset in bootloader mode.
1290 * Whereas, the upcoming Intel BT controllers will hold USB reset
1291 * for 150ms. To keep the delay generic, 150ms is chosen here.
1292 */
1293 msleep(150);
1294}
b9a2562f 1295
0d8603b4
THJA		 1296static int btintel_read_debug_features(struct hci_dev *hdev,
1297 struct intel_debug_features *features)
d74abe21
C		 1298{
1299 struct sk_buff *skb;
1300 u8 page_no = 1;
1301
1302 /* Intel controller supports two pages, each page is of 128-bit
1303 * feature bit mask. And each bit defines specific feature support
1304 */
1305 skb = __hci_cmd_sync(hdev, 0xfca6, sizeof(page_no), &page_no,
1306 HCI_INIT_TIMEOUT);
1307 if (IS_ERR(skb)) {
1308 bt_dev_err(hdev, "Reading supported features failed (%ld)",
1309 PTR_ERR(skb));
1310 return PTR_ERR(skb);
1311 }
1312
1313 if (skb->len != (sizeof(features->page1) + 3)) {
1314 bt_dev_err(hdev, "Supported features event size mismatch");
1315 kfree_skb(skb);
1316 return -EILSEQ;
1317 }
1318
1319 memcpy(features->page1, skb->data + 3, sizeof(features->page1));
1320
1321 /* Read the supported features page2 if required in future.
1322 */
1323 kfree_skb(skb);
1324 return 0;
1325}
d74abe21 1326
c585a92b
SS		 1327static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data,
1328 void **ret)
1329{
1330 acpi_status status;
1331 size_t len;
1332 struct btintel_ppag *ppag = data;
1333 union acpi_object *p, *elements;
1334 struct acpi_buffer string = {ACPI_ALLOCATE_BUFFER, NULL};
1335 struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
1336 struct hci_dev *hdev = ppag->hdev;
1337
1338 status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
1339 if (ACPI_FAILURE(status)) {
294d749b 1340 bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
c585a92b
SS		 1341 return status;
1342 }
1343
294d749b
K		 1344 len = strlen(string.pointer);
1345 if (len < strlen(BTINTEL_PPAG_NAME)) {
c585a92b
SS		 1346 kfree(string.pointer);
1347 return AE_OK;
1348 }
1349
c585a92b
SS		 1350 if (strncmp((char *)string.pointer + len - 4, BTINTEL_PPAG_NAME, 4)) {
1351 kfree(string.pointer);
1352 return AE_OK;
1353 }
1354 kfree(string.pointer);
1355
1356 status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
1357 if (ACPI_FAILURE(status)) {
294d749b
K		 1358 ppag->status = status;
1359 bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
c585a92b
SS		 1360 return status;
1361 }
1362
1363 p = buffer.pointer;
1364 ppag = (struct btintel_ppag *)data;
1365
1366 if (p->type != ACPI_TYPE_PACKAGE || p->package.count != 2) {
1367 kfree(buffer.pointer);
294d749b 1368 bt_dev_warn(hdev, "PPAG-BT: Invalid object type: %d or package count: %d",
c585a92b 1369 p->type, p->package.count);
294d749b 1370 ppag->status = AE_ERROR;
c585a92b
SS		 1371 return AE_ERROR;
1372 }
1373
1374 elements = p->package.elements;
1375
1376 /* PPAG table is located at element[1] */
1377 p = &elements[1];
1378
1379 ppag->domain = (u32)p->package.elements[0].integer.value;
1380 ppag->mode = (u32)p->package.elements[1].integer.value;
294d749b 1381 ppag->status = AE_OK;
c585a92b
SS		 1382 kfree(buffer.pointer);
1383 return AE_CTRL_TERMINATE;
1384}
1385
0d8603b4 1386static int btintel_set_debug_features(struct hci_dev *hdev,
c453b10c
C		 1387 const struct intel_debug_features *features)
1388{
76a56bbd 1389 u8 mask[11] = { 0x0a, 0x92, 0x02, 0x7f, 0x00, 0x00, 0x00, 0x00,
c453b10c 1390 0x00, 0x00, 0x00 };
76a56bbd
C		 1391 u8 period[5] = { 0x04, 0x91, 0x02, 0x05, 0x00 };
1392 u8 trace_enable = 0x02;
c453b10c
C		 1393 struct sk_buff *skb;
1394
927ac8da
JH		 1395 if (!features) {
1396 bt_dev_warn(hdev, "Debug features not read");
c453b10c 1397 return -EINVAL;
927ac8da 1398 }
c453b10c
C		 1399
1400 if (!(features->page1[0] & 0x3f)) {
1401 bt_dev_info(hdev, "Telemetry exception format not supported");
1402 return 0;
1403 }
1404
1405 skb = __hci_cmd_sync(hdev, 0xfc8b, 11, mask, HCI_INIT_TIMEOUT);
1406 if (IS_ERR(skb)) {
1407 bt_dev_err(hdev, "Setting Intel telemetry ddc write event mask failed (%ld)",
1408 PTR_ERR(skb));
1409 return PTR_ERR(skb);
1410 }
76a56bbd
C		 1411 kfree_skb(skb);
1412
1413 skb = __hci_cmd_sync(hdev, 0xfc8b, 5, period, HCI_INIT_TIMEOUT);
1414 if (IS_ERR(skb)) {
1415 bt_dev_err(hdev, "Setting periodicity for link statistics traces failed (%ld)",
1416 PTR_ERR(skb));
1417 return PTR_ERR(skb);
1418 }
1419 kfree_skb(skb);
c453b10c 1420
76a56bbd
C		 1421 skb = __hci_cmd_sync(hdev, 0xfca1, 1, &trace_enable, HCI_INIT_TIMEOUT);
1422 if (IS_ERR(skb)) {
1423 bt_dev_err(hdev, "Enable tracing of link statistics events failed (%ld)",
1424 PTR_ERR(skb));
1425 return PTR_ERR(skb);
1426 }
c453b10c 1427 kfree_skb(skb);
76a56bbd 1428
927ac8da
JH		 1429 bt_dev_info(hdev, "set debug features: trace_enable 0x%02x mask 0x%02x",
1430 trace_enable, mask[3]);
1431
c453b10c
C		 1432 return 0;
1433}
c453b10c 1434
927ac8da
JH		 1435static int btintel_reset_debug_features(struct hci_dev *hdev,
1436 const struct intel_debug_features *features)
1437{
1438 u8 mask[11] = { 0x0a, 0x92, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
1439 0x00, 0x00, 0x00 };
1440 u8 trace_enable = 0x00;
1441 struct sk_buff *skb;
1442
1443 if (!features) {
1444 bt_dev_warn(hdev, "Debug features not read");
1445 return -EINVAL;
1446 }
1447
1448 if (!(features->page1[0] & 0x3f)) {
1449 bt_dev_info(hdev, "Telemetry exception format not supported");
1450 return 0;
1451 }
1452
1453 /* Should stop the trace before writing ddc event mask. */
1454 skb = __hci_cmd_sync(hdev, 0xfca1, 1, &trace_enable, HCI_INIT_TIMEOUT);
1455 if (IS_ERR(skb)) {
1456 bt_dev_err(hdev, "Stop tracing of link statistics events failed (%ld)",
1457 PTR_ERR(skb));
1458 return PTR_ERR(skb);
1459 }
1460 kfree_skb(skb);
1461
1462 skb = __hci_cmd_sync(hdev, 0xfc8b, 11, mask, HCI_INIT_TIMEOUT);
1463 if (IS_ERR(skb)) {
1464 bt_dev_err(hdev, "Setting Intel telemetry ddc write event mask failed (%ld)",
1465 PTR_ERR(skb));
1466 return PTR_ERR(skb);
1467 }
1468 kfree_skb(skb);
1469
1470 bt_dev_info(hdev, "reset debug features: trace_enable 0x%02x mask 0x%02x",
1471 trace_enable, mask[3]);
1472
1473 return 0;
1474}
1475
1476int btintel_set_quality_report(struct hci_dev *hdev, bool enable)
1477{
1478 struct intel_debug_features features;
1479 int err;
1480
1481 bt_dev_dbg(hdev, "enable %d", enable);
1482
1483 /* Read the Intel supported features and if new exception formats
1484 * supported, need to load the additional DDC config to enable.
1485 */
1486 err = btintel_read_debug_features(hdev, &features);
1487 if (err)
1488 return err;
1489
1490 /* Set or reset the debug features. */
1491 if (enable)
1492 err = btintel_set_debug_features(hdev, &features);
1493 else
1494 err = btintel_reset_debug_features(hdev, &features);
1495
1496 return err;
1497}
1498EXPORT_SYMBOL_GPL(btintel_set_quality_report);
1499
af395330
APS		 1500static void btintel_coredump(struct hci_dev *hdev)
1501{
1502 struct sk_buff *skb;
1503
1504 skb = __hci_cmd_sync(hdev, 0xfc4e, 0, NULL, HCI_CMD_TIMEOUT);
1505 if (IS_ERR(skb)) {
1506 bt_dev_err(hdev, "Coredump failed (%ld)", PTR_ERR(skb));
1507 return;
1508 }
1509
1510 kfree_skb(skb);
1511}
1512
1513static void btintel_dmp_hdr(struct hci_dev *hdev, struct sk_buff *skb)
1514{
1515 char buf[80];
1516
1517 snprintf(buf, sizeof(buf), "Controller Name: 0x%X\n",
1518 coredump_info.hw_variant);
1519 skb_put_data(skb, buf, strlen(buf));
1520
1521 snprintf(buf, sizeof(buf), "Firmware Version: 0x%X\n",
1522 coredump_info.fw_build_num);
1523 skb_put_data(skb, buf, strlen(buf));
1524
1525 snprintf(buf, sizeof(buf), "Driver: %s\n", coredump_info.driver_name);
1526 skb_put_data(skb, buf, strlen(buf));
1527
1528 snprintf(buf, sizeof(buf), "Vendor: Intel\n");
1529 skb_put_data(skb, buf, strlen(buf));
1530}
1531
1532static int btintel_register_devcoredump_support(struct hci_dev *hdev)
1533{
1534 struct intel_debug_features features;
1535 int err;
1536
1537 err = btintel_read_debug_features(hdev, &features);
1538 if (err) {
1539 bt_dev_info(hdev, "Error reading debug features");
1540 return err;
1541 }
1542
1543 if (!(features.page1[0] & 0x3f)) {
1544 bt_dev_dbg(hdev, "Telemetry exception format not supported");
1545 return -EOPNOTSUPP;
1546 }
1547
1548 hci_devcd_register(hdev, btintel_coredump, btintel_dmp_hdr, NULL);
1549
1550 return err;
1551}
1552
83f2dafe
THJA		 1553static const struct firmware *btintel_legacy_rom_get_fw(struct hci_dev *hdev,
1554 struct intel_version *ver)
1555{
1556 const struct firmware *fw;
1557 char fwname[64];
1558 int ret;
1559
1560 snprintf(fwname, sizeof(fwname),
1561 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1562 ver->hw_platform, ver->hw_variant, ver->hw_revision,
1563 ver->fw_variant, ver->fw_revision, ver->fw_build_num,
1564 ver->fw_build_ww, ver->fw_build_yy);
1565
1566 ret = request_firmware(&fw, fwname, &hdev->dev);
1567 if (ret < 0) {
1568 if (ret == -EINVAL) {
1569 bt_dev_err(hdev, "Intel firmware file request failed (%d)",
1570 ret);
1571 return NULL;
1572 }
1573
1574 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)",
1575 fwname, ret);
1576
1577 /* If the correct firmware patch file is not found, use the
1578 * default firmware patch file instead
1579 */
1580 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1581 ver->hw_platform, ver->hw_variant);
1582 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1583 bt_dev_err(hdev, "failed to open default fw file: %s",
1584 fwname);
1585 return NULL;
1586 }
1587 }
1588
1589 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1590
1591 return fw;
1592}
1593
1594static int btintel_legacy_rom_patching(struct hci_dev *hdev,
1595 const struct firmware *fw,
1596 const u8 **fw_ptr, int *disable_patch)
1597{
1598 struct sk_buff *skb;
1599 struct hci_command_hdr *cmd;
1600 const u8 *cmd_param;
1601 struct hci_event_hdr *evt = NULL;
1602 const u8 *evt_param = NULL;
1603 int remain = fw->size - (*fw_ptr - fw->data);
1604
1605 /* The first byte indicates the types of the patch command or event.
1606 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1607 * in the current firmware buffer doesn't start with 0x01 or
1608 * the size of remain buffer is smaller than HCI command header,
1609 * the firmware file is corrupted and it should stop the patching
1610 * process.
1611 */
1612 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1613 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read");
1614 return -EINVAL;
1615 }
1616 (*fw_ptr)++;
1617 remain--;
1618
1619 cmd = (struct hci_command_hdr *)(*fw_ptr);
1620 *fw_ptr += sizeof(*cmd);
1621 remain -= sizeof(*cmd);
1622
1623 /* Ensure that the remain firmware data is long enough than the length
1624 * of command parameter. If not, the firmware file is corrupted.
1625 */
1626 if (remain < cmd->plen) {
1627 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len");
1628 return -EFAULT;
1629 }
1630
1631 /* If there is a command that loads a patch in the firmware
1632 * file, then enable the patch upon success, otherwise just
1633 * disable the manufacturer mode, for example patch activation
1634 * is not required when the default firmware patch file is used
1635 * because there are no patch data to load.
1636 */
1637 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1638 *disable_patch = 0;
1639
1640 cmd_param = *fw_ptr;
1641 *fw_ptr += cmd->plen;
1642 remain -= cmd->plen;
1643
1644 /* This reads the expected events when the above command is sent to the
1645 * device. Some vendor commands expects more than one events, for
1646 * example command status event followed by vendor specific event.
1647 * For this case, it only keeps the last expected event. so the command
1648 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1649 * last expected event.
1650 */
1651 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1652 (*fw_ptr)++;
1653 remain--;
1654
1655 evt = (struct hci_event_hdr *)(*fw_ptr);
1656 *fw_ptr += sizeof(*evt);
1657 remain -= sizeof(*evt);
1658
1659 if (remain < evt->plen) {
1660 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len");
1661 return -EFAULT;
1662 }
1663
1664 evt_param = *fw_ptr;
1665 *fw_ptr += evt->plen;
1666 remain -= evt->plen;
1667 }
1668
1669 /* Every HCI commands in the firmware file has its correspond event.
1670 * If event is not found or remain is smaller than zero, the firmware
1671 * file is corrupted.
1672 */
1673 if (!evt || !evt_param || remain < 0) {
1674 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read");
1675 return -EFAULT;
1676 }
1677
1678 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1679 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1680 if (IS_ERR(skb)) {
1681 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)",
1682 cmd->opcode, PTR_ERR(skb));
1683 return PTR_ERR(skb);
1684 }
1685
1686 /* It ensures that the returned event matches the event data read from
1687 * the firmware file. At fist, it checks the length and then
1688 * the contents of the event.
1689 */
1690 if (skb->len != evt->plen) {
1691 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)",
1692 le16_to_cpu(cmd->opcode));
1693 kfree_skb(skb);
1694 return -EFAULT;
1695 }
1696
1697 if (memcmp(skb->data, evt_param, evt->plen)) {
1698 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)",
1699 le16_to_cpu(cmd->opcode));
1700 kfree_skb(skb);
1701 return -EFAULT;
1702 }
1703 kfree_skb(skb);
1704
1705 return 0;
1706}
1707
1708static int btintel_legacy_rom_setup(struct hci_dev *hdev,
1709 struct intel_version *ver)
1710{
1711 const struct firmware *fw;
1712 const u8 *fw_ptr;
1713 int disable_patch, err;
1714 struct intel_version new_ver;
1715
1716 BT_DBG("%s", hdev->name);
1717
1718 /* fw_patch_num indicates the version of patch the device currently
1719 * have. If there is no patch data in the device, it is always 0x00.
1720 * So, if it is other than 0x00, no need to patch the device again.
1721 */
1722 if (ver->fw_patch_num) {
1723 bt_dev_info(hdev,
1724 "Intel device is already patched. patch num: %02x",
1725 ver->fw_patch_num);
1726 goto complete;
1727 }
1728
1729 /* Opens the firmware patch file based on the firmware version read
1730 * from the controller. If it fails to open the matching firmware
1731 * patch file, it tries to open the default firmware patch file.
1732 * If no patch file is found, allow the device to operate without
1733 * a patch.
1734 */
1735 fw = btintel_legacy_rom_get_fw(hdev, ver);
1736 if (!fw)
1737 goto complete;
1738 fw_ptr = fw->data;
1739
1740 /* Enable the manufacturer mode of the controller.
1741 * Only while this mode is enabled, the driver can download the
1742 * firmware patch data and configuration parameters.
1743 */
1744 err = btintel_enter_mfg(hdev);
1745 if (err) {
1746 release_firmware(fw);
1747 return err;
1748 }
1749
1750 disable_patch = 1;
1751
1752 /* The firmware data file consists of list of Intel specific HCI
1753 * commands and its expected events. The first byte indicates the
1754 * type of the message, either HCI command or HCI event.
1755 *
1756 * It reads the command and its expected event from the firmware file,
1757 * and send to the controller. Once __hci_cmd_sync_ev() returns,
1758 * the returned event is compared with the event read from the firmware
1759 * file and it will continue until all the messages are downloaded to
1760 * the controller.
1761 *
1762 * Once the firmware patching is completed successfully,
1763 * the manufacturer mode is disabled with reset and activating the
1764 * downloaded patch.
1765 *
1766 * If the firmware patching fails, the manufacturer mode is
1767 * disabled with reset and deactivating the patch.
1768 *
1769 * If the default patch file is used, no reset is done when disabling
1770 * the manufacturer.
1771 */
1772 while (fw->size > fw_ptr - fw->data) {
1773 int ret;
1774
1775 ret = btintel_legacy_rom_patching(hdev, fw, &fw_ptr,
1776 &disable_patch);
1777 if (ret < 0)
1778 goto exit_mfg_deactivate;
1779 }
1780
1781 release_firmware(fw);
1782
1783 if (disable_patch)
1784 goto exit_mfg_disable;
1785
1786 /* Patching completed successfully and disable the manufacturer mode
1787 * with reset and activate the downloaded firmware patches.
1788 */
1789 err = btintel_exit_mfg(hdev, true, true);
1790 if (err)
1791 return err;
1792
1793 /* Need build number for downloaded fw patches in
1794 * every power-on boot
1795 */
1796 err = btintel_read_version(hdev, &new_ver);
1797 if (err)
1798 return err;
1799
1800 bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated",
1801 new_ver.fw_patch_num);
1802
1803 goto complete;
1804
1805exit_mfg_disable:
1806 /* Disable the manufacturer mode without reset */
1807 err = btintel_exit_mfg(hdev, false, false);
1808 if (err)
1809 return err;
1810
1811 bt_dev_info(hdev, "Intel firmware patch completed");
1812
1813 goto complete;
1814
1815exit_mfg_deactivate:
1816 release_firmware(fw);
1817
1818 /* Patching failed. Disable the manufacturer mode with reset and
1819 * deactivate the downloaded firmware patches.
1820 */
1821 err = btintel_exit_mfg(hdev, true, false);
1822 if (err)
1823 return err;
1824
1825 bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1826
1827complete:
1828 /* Set the event mask for Intel specific vendor events. This enables
1829 * a few extra events that are useful during general operation.
1830 */
1831 btintel_set_event_mask_mfg(hdev, false);
1832
1833 btintel_check_bdaddr(hdev);
1834
1835 return 0;
1836}
1837
019a1caa
THJA		 1838static int btintel_download_wait(struct hci_dev *hdev, ktime_t calltime, int msec)
1839{
1840 ktime_t delta, rettime;
1841 unsigned long long duration;
1842 int err;
1843
1844 btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED);
1845
1846 bt_dev_info(hdev, "Waiting for firmware download to complete");
1847
1848 err = btintel_wait_on_flag_timeout(hdev, INTEL_DOWNLOADING,
1849 TASK_INTERRUPTIBLE,
1850 msecs_to_jiffies(msec));
1851 if (err == -EINTR) {
1852 bt_dev_err(hdev, "Firmware loading interrupted");
1853 return err;
1854 }
1855
1856 if (err) {
1857 bt_dev_err(hdev, "Firmware loading timeout");
1858 return -ETIMEDOUT;
1859 }
1860
1861 if (btintel_test_flag(hdev, INTEL_FIRMWARE_FAILED)) {
1862 bt_dev_err(hdev, "Firmware loading failed");
1863 return -ENOEXEC;
1864 }
1865
1866 rettime = ktime_get();
1867 delta = ktime_sub(rettime, calltime);
1868 duration = (unsigned long long)ktime_to_ns(delta) >> 10;
1869
1870 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
1871
1872 return 0;
1873}
1874
1875static int btintel_boot_wait(struct hci_dev *hdev, ktime_t calltime, int msec)
1876{
1877 ktime_t delta, rettime;
1878 unsigned long long duration;
1879 int err;
1880
1881 bt_dev_info(hdev, "Waiting for device to boot");
1882
1883 err = btintel_wait_on_flag_timeout(hdev, INTEL_BOOTING,
1884 TASK_INTERRUPTIBLE,
1885 msecs_to_jiffies(msec));
1886 if (err == -EINTR) {
1887 bt_dev_err(hdev, "Device boot interrupted");
1888 return -EINTR;
1889 }
1890
1891 if (err) {
1892 bt_dev_err(hdev, "Device boot timeout");
1893 return -ETIMEDOUT;
1894 }
1895
1896 rettime = ktime_get();
1897 delta = ktime_sub(rettime, calltime);
1898 duration = (unsigned long long) ktime_to_ns(delta) >> 10;
1899
1900 bt_dev_info(hdev, "Device booted in %llu usecs", duration);
1901
1902 return 0;
1903}
1904
1905static int btintel_boot(struct hci_dev *hdev, u32 boot_addr)
1906{
1907 ktime_t calltime;
1908 int err;
1909
1910 calltime = ktime_get();
1911
1912 btintel_set_flag(hdev, INTEL_BOOTING);
1913
1914 err = btintel_send_intel_reset(hdev, boot_addr);
1915 if (err) {
1916 bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err);
1917 btintel_reset_to_bootloader(hdev);
1918 return err;
1919 }
1920
1921 /* The bootloader will not indicate when the device is ready. This
1922 * is done by the operational firmware sending bootup notification.
1923 *
1924 * Booting into operational firmware should not take longer than
1925 * 1 second. However if that happens, then just fail the setup
1926 * since something went wrong.
1927 */
1928 err = btintel_boot_wait(hdev, calltime, 1000);
1929 if (err == -ETIMEDOUT)
1930 btintel_reset_to_bootloader(hdev);
1931
1932 return err;
1933}
1934
1935static int btintel_get_fw_name(struct intel_version *ver,
1936 struct intel_boot_params *params,
1937 char *fw_name, size_t len,
1938 const char *suffix)
1939{
1940 switch (ver->hw_variant) {
1941 case 0x0b: /* SfP */
1942 case 0x0c: /* WsP */
1943 snprintf(fw_name, len, "intel/ibt-%u-%u.%s",
069ab3f9
LAD		 1944 ver->hw_variant,
1945 le16_to_cpu(params->dev_revid),
1946 suffix);
019a1caa
THJA		 1947 break;
1948 case 0x11: /* JfP */
1949 case 0x12: /* ThP */
1950 case 0x13: /* HrP */
1951 case 0x14: /* CcP */
1952 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s",
069ab3f9
LAD		 1953 ver->hw_variant,
1954 ver->hw_revision,
1955 ver->fw_revision,
1956 suffix);
019a1caa
THJA		 1957 break;
1958 default:
1959 return -EINVAL;
1960 }
1961
1962 return 0;
1963}
1964
1965static int btintel_download_fw(struct hci_dev *hdev,
1966 struct intel_version *ver,
1967 struct intel_boot_params *params,
1968 u32 *boot_param)
1969{
1970 const struct firmware *fw;
1971 char fwname[64];
1972 int err;
1973 ktime_t calltime;
1974
1975 if (!ver || !params)
1976 return -EINVAL;
1977
1978 /* The firmware variant determines if the device is in bootloader
1979 * mode or is running operational firmware. The value 0x06 identifies
1980 * the bootloader and the value 0x23 identifies the operational
1981 * firmware.
1982 *
1983 * When the operational firmware is already present, then only
1984 * the check for valid Bluetooth device address is needed. This
1985 * determines if the device will be added as configured or
1986 * unconfigured controller.
1987 *
1988 * It is not possible to use the Secure Boot Parameters in this
1989 * case since that command is only available in bootloader mode.
1990 */
1991 if (ver->fw_variant == 0x23) {
1992 btintel_clear_flag(hdev, INTEL_BOOTLOADER);
1993 btintel_check_bdaddr(hdev);
1994
1995 /* SfP and WsP don't seem to update the firmware version on file
1996 * so version checking is currently possible.
1997 */
1998 switch (ver->hw_variant) {
1999 case 0x0b: /* SfP */
2000 case 0x0c: /* WsP */
2001 return 0;
2002 }
2003
2004 /* Proceed to download to check if the version matches */
2005 goto download;
2006 }
2007
2008 /* Read the secure boot parameters to identify the operating
2009 * details of the bootloader.
2010 */
2011 err = btintel_read_boot_params(hdev, params);
2012 if (err)
2013 return err;
2014
2015 /* It is required that every single firmware fragment is acknowledged
2016 * with a command complete event. If the boot parameters indicate
2017 * that this bootloader does not send them, then abort the setup.
2018 */
2019 if (params->limited_cce != 0x00) {
2020 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)",
2021 params->limited_cce);
2022 return -EINVAL;
2023 }
2024
2025 /* If the OTP has no valid Bluetooth device address, then there will
2026 * also be no valid address for the operational firmware.
2027 */
2028 if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2029 bt_dev_info(hdev, "No device address configured");
2030 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2031 }
2032
2033download:
2034 /* With this Intel bootloader only the hardware variant and device
2035 * revision information are used to select the right firmware for SfP
2036 * and WsP.
2037 *
2038 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2039 *
2040 * Currently the supported hardware variants are:
2041 * 11 (0x0b) for iBT3.0 (LnP/SfP)
2042 * 12 (0x0c) for iBT3.5 (WsP)
2043 *
2044 * For ThP/JfP and for future SKU's, the FW name varies based on HW
2045 * variant, HW revision and FW revision, as these are dependent on CNVi
2046 * and RF Combination.
2047 *
2048 * 17 (0x11) for iBT3.5 (JfP)
2049 * 18 (0x12) for iBT3.5 (ThP)
2050 *
2051 * The firmware file name for these will be
2052 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2053 *
2054 */
2055 err = btintel_get_fw_name(ver, params, fwname, sizeof(fwname), "sfi");
2056 if (err < 0) {
2057 if (!btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2058 /* Firmware has already been loaded */
2059 btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED);
2060 return 0;
2061 }
2062
2063 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2064 return -EINVAL;
2065 }
2066
2067 err = firmware_request_nowarn(&fw, fwname, &hdev->dev);
2068 if (err < 0) {
2069 if (!btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2070 /* Firmware has already been loaded */
2071 btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED);
2072 return 0;
2073 }
2074
2075 bt_dev_err(hdev, "Failed to load Intel firmware file %s (%d)",
2076 fwname, err);
2077 return err;
2078 }
2079
2080 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2081
2082 if (fw->size < 644) {
2083 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2084 fw->size);
2085 err = -EBADF;
2086 goto done;
2087 }
2088
2089 calltime = ktime_get();
2090
2091 btintel_set_flag(hdev, INTEL_DOWNLOADING);
2092
2093 /* Start firmware downloading and get boot parameter */
2094 err = btintel_download_firmware(hdev, ver, fw, boot_param);
2095 if (err < 0) {
2096 if (err == -EALREADY) {
2097 /* Firmware has already been loaded */
2098 btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED);
2099 err = 0;
2100 goto done;
2101 }
2102
2103 /* When FW download fails, send Intel Reset to retry
2104 * FW download.
2105 */
2106 btintel_reset_to_bootloader(hdev);
2107 goto done;
2108 }
2109
2110 /* Before switching the device into operational mode and with that
2111 * booting the loaded firmware, wait for the bootloader notification
2112 * that all fragments have been successfully received.
2113 *
2114 * When the event processing receives the notification, then the
2115 * INTEL_DOWNLOADING flag will be cleared.
2116 *
2117 * The firmware loading should not take longer than 5 seconds
2118 * and thus just timeout if that happens and fail the setup
2119 * of this device.
2120 */
2121 err = btintel_download_wait(hdev, calltime, 5000);
2122 if (err == -ETIMEDOUT)
2123 btintel_reset_to_bootloader(hdev);
2124
2125done:
2126 release_firmware(fw);
2127 return err;
2128}
2129
2130static int btintel_bootloader_setup(struct hci_dev *hdev,
2131 struct intel_version *ver)
2132{
2133 struct intel_version new_ver;
2134 struct intel_boot_params params;
2135 u32 boot_param;
2136 char ddcname[64];
2137 int err;
019a1caa
THJA		 2138
2139 BT_DBG("%s", hdev->name);
2140
2141 /* Set the default boot parameter to 0x0 and it is updated to
2142 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2143 * command while downloading the firmware.
2144 */
2145 boot_param = 0x00000000;
2146
2147 btintel_set_flag(hdev, INTEL_BOOTLOADER);
2148
2149 err = btintel_download_fw(hdev, ver, &params, &boot_param);
2150 if (err)
2151 return err;
2152
2153 /* controller is already having an operational firmware */
2154 if (ver->fw_variant == 0x23)
2155 goto finish;
2156
2157 err = btintel_boot(hdev, boot_param);
2158 if (err)
2159 return err;
2160
2161 btintel_clear_flag(hdev, INTEL_BOOTLOADER);
2162
2163 err = btintel_get_fw_name(ver, &params, ddcname,
2164 sizeof(ddcname), "ddc");
2165
2166 if (err < 0) {
2167 bt_dev_err(hdev, "Unsupported Intel firmware naming");
2168 } else {
2169 /* Once the device is running in operational mode, it needs to
2170 * apply the device configuration (DDC) parameters.
2171 *
2172 * The device can work without DDC parameters, so even if it
2173 * fails to load the file, no need to fail the setup.
2174 */
2175 btintel_load_ddc_config(hdev, ddcname);
2176 }
2177
927ac8da
JH		 2178 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);
2179
019a1caa
THJA		 2180 /* Read the Intel version information after loading the FW */
2181 err = btintel_read_version(hdev, &new_ver);
2182 if (err)
2183 return err;
2184
2185 btintel_version_info(hdev, &new_ver);
2186
2187finish:
019a1caa
THJA		 2188 /* Set the event mask for Intel specific vendor events. This enables
2189 * a few extra events that are useful during general operation. It
2190 * does not enable any debugging related events.
2191 *
2192 * The device will function correctly without these events enabled
2193 * and thus no need to fail the setup.
2194 */
2195 btintel_set_event_mask(hdev, false);
2196
2197 return 0;
2198}
2199
2200static void btintel_get_fw_name_tlv(const struct intel_version_tlv *ver,
2201 char *fw_name, size_t len,
2202 const char *suffix)
2203{
f3b845e0 2204 const char *format;
019a1caa
THJA		 2205 /* The firmware file name for new generation controllers will be
2206 * ibt-<cnvi_top type+cnvi_top step>-<cnvr_top type+cnvr_top step>
2207 */
f3b845e0
K		 2208 switch (ver->cnvi_top & 0xfff) {
2209 /* Only Blazar product supports downloading of intermediate loader
2210 * image
2211 */
2212 case BTINTEL_CNVI_BLAZARI:
2213 if (ver->img_type == BTINTEL_IMG_BOOTLOADER)
2214 format = "intel/ibt-%04x-%04x-iml.%s";
2215 else
2216 format = "intel/ibt-%04x-%04x.%s";
2217 break;
2218 default:
2219 format = "intel/ibt-%04x-%04x.%s";
2220 break;
2221 }
2222
2223 snprintf(fw_name, len, format,
019a1caa
THJA		 2224 INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver->cnvi_top),
2225 INTEL_CNVX_TOP_STEP(ver->cnvi_top)),
2226 INTEL_CNVX_TOP_PACK_SWAB(INTEL_CNVX_TOP_TYPE(ver->cnvr_top),
2227 INTEL_CNVX_TOP_STEP(ver->cnvr_top)),
2228 suffix);
2229}
2230
2231static int btintel_prepare_fw_download_tlv(struct hci_dev *hdev,
2232 struct intel_version_tlv *ver,
2233 u32 *boot_param)
2234{
2235 const struct firmware *fw;
2236 char fwname[64];
2237 int err;
2238 ktime_t calltime;
2239
2240 if (!ver || !boot_param)
2241 return -EINVAL;
2242
2243 /* The firmware variant determines if the device is in bootloader
2244 * mode or is running operational firmware. The value 0x03 identifies
2245 * the bootloader and the value 0x23 identifies the operational
2246 * firmware.
2247 *
2248 * When the operational firmware is already present, then only
2249 * the check for valid Bluetooth device address is needed. This
2250 * determines if the device will be added as configured or
2251 * unconfigured controller.
2252 *
2253 * It is not possible to use the Secure Boot Parameters in this
2254 * case since that command is only available in bootloader mode.
2255 */
5ec6feb1 2256 if (ver->img_type == BTINTEL_IMG_OP) {
019a1caa
THJA		 2257 btintel_clear_flag(hdev, INTEL_BOOTLOADER);
2258 btintel_check_bdaddr(hdev);
89350531
K		 2259 } else {
2260 /*
2261 * Check for valid bd address in boot loader mode. Device
2262 * will be marked as unconfigured if empty bd address is
2263 * found.
2264 */
2265 if (!bacmp(&ver->otp_bd_addr, BDADDR_ANY)) {
2266 bt_dev_info(hdev, "No device address configured");
2267 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2268 }
019a1caa
THJA		 2269 }
2270
2271 btintel_get_fw_name_tlv(ver, fwname, sizeof(fwname), "sfi");
2272 err = firmware_request_nowarn(&fw, fwname, &hdev->dev);
2273 if (err < 0) {
2274 if (!btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2275 /* Firmware has already been loaded */
2276 btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED);
2277 return 0;
2278 }
2279
2280 bt_dev_err(hdev, "Failed to load Intel firmware file %s (%d)",
2281 fwname, err);
2282
2283 return err;
2284 }
2285
2286 bt_dev_info(hdev, "Found device firmware: %s", fwname);
2287
2288 if (fw->size < 644) {
2289 bt_dev_err(hdev, "Invalid size of firmware file (%zu)",
2290 fw->size);
2291 err = -EBADF;
2292 goto done;
2293 }
2294
2295 calltime = ktime_get();
2296
2297 btintel_set_flag(hdev, INTEL_DOWNLOADING);
2298
2299 /* Start firmware downloading and get boot parameter */
2300 err = btintel_download_fw_tlv(hdev, ver, fw, boot_param,
2301 INTEL_HW_VARIANT(ver->cnvi_bt),
2302 ver->sbe_type);
2303 if (err < 0) {
2304 if (err == -EALREADY) {
2305 /* Firmware has already been loaded */
2306 btintel_set_flag(hdev, INTEL_FIRMWARE_LOADED);
2307 err = 0;
2308 goto done;
2309 }
2310
2311 /* When FW download fails, send Intel Reset to retry
2312 * FW download.
2313 */
2314 btintel_reset_to_bootloader(hdev);
2315 goto done;
2316 }
2317
2318 /* Before switching the device into operational mode and with that
2319 * booting the loaded firmware, wait for the bootloader notification
2320 * that all fragments have been successfully received.
2321 *
2322 * When the event processing receives the notification, then the
2323 * BTUSB_DOWNLOADING flag will be cleared.
2324 *
2325 * The firmware loading should not take longer than 5 seconds
2326 * and thus just timeout if that happens and fail the setup
2327 * of this device.
2328 */
2329 err = btintel_download_wait(hdev, calltime, 5000);
2330 if (err == -ETIMEDOUT)
2331 btintel_reset_to_bootloader(hdev);
2332
2333done:
2334 release_firmware(fw);
2335 return err;
2336}
2337
70dd9789
K		 2338static int btintel_get_codec_config_data(struct hci_dev *hdev,
2339 __u8 link, struct bt_codec *codec,
2340 __u8 *ven_len, __u8 **ven_data)
2341{
2342 int err = 0;
2343
2344 if (!ven_data || !ven_len)
2345 return -EINVAL;
2346
2347 *ven_len = 0;
2348 *ven_data = NULL;
2349
2350 if (link != ESCO_LINK) {
2351 bt_dev_err(hdev, "Invalid link type(%u)", link);
2352 return -EINVAL;
2353 }
2354
2355 *ven_data = kmalloc(sizeof(__u8), GFP_KERNEL);
8bba13b1 2356 if (!*ven_data) {
70dd9789
K		 2357 err = -ENOMEM;
2358 goto error;
2359 }
2360
2361 /* supports only CVSD and mSBC offload codecs */
2362 switch (codec->id) {
2363 case 0x02:
2364 **ven_data = 0x00;
2365 break;
2366 case 0x05:
2367 **ven_data = 0x01;
2368 break;
2369 default:
2370 err = -EINVAL;
2371 bt_dev_err(hdev, "Invalid codec id(%u)", codec->id);
2372 goto error;
2373 }
2374 /* codec and its capabilities are pre-defined to ids
2375 * preset id = 0x00 represents CVSD codec with sampling rate 8K
2376 * preset id = 0x01 represents mSBC codec with sampling rate 16K
2377 */
2378 *ven_len = sizeof(__u8);
2379 return err;
2380
2381error:
2382 kfree(*ven_data);
2383 *ven_data = NULL;
2384 return err;
2385}
2386
d586029c
K		 2387static int btintel_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id)
2388{
2389 /* Intel uses 1 as data path id for all the usecases */
2390 *data_path_id = 1;
2391 return 0;
2392}
2393
a358ef86
K		 2394static int btintel_configure_offload(struct hci_dev *hdev)
2395{
2396 struct sk_buff *skb;
2397 int err = 0;
2398 struct intel_offload_use_cases *use_cases;
2399
2400 skb = __hci_cmd_sync(hdev, 0xfc86, 0, NULL, HCI_INIT_TIMEOUT);
2401 if (IS_ERR(skb)) {
2402 bt_dev_err(hdev, "Reading offload use cases failed (%ld)",
2403 PTR_ERR(skb));
2404 return PTR_ERR(skb);
2405 }
2406
2407 if (skb->len < sizeof(*use_cases)) {
2408 err = -EIO;
2409 goto error;
2410 }
2411
2412 use_cases = (void *)skb->data;
2413
2414 if (use_cases->status) {
2415 err = -bt_to_errno(skb->data[0]);
2416 goto error;
2417 }
d586029c 2418
70dd9789 2419 if (use_cases->preset[0] & 0x03) {
d586029c 2420 hdev->get_data_path_id = btintel_get_data_path_id;
70dd9789
K		 2421 hdev->get_codec_config_data = btintel_get_codec_config_data;
2422 }
a358ef86
K		 2423error:
2424 kfree_skb(skb);
2425 return err;
2426}
2427
c585a92b
SS		 2428static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver)
2429{
c585a92b
SS		 2430 struct btintel_ppag ppag;
2431 struct sk_buff *skb;
7866b9fa 2432 struct hci_ppag_enable_cmd ppag_cmd;
902160cd 2433 acpi_handle handle;
c585a92b 2434
294d749b 2435 /* PPAG is not supported if CRF is HrP2, Jfp2, JfP1 */
c585a92b
SS		 2436 switch (ver->cnvr_top & 0xFFF) {
2437 case 0x504: /* Hrp2 */
2438 case 0x202: /* Jfp2 */
2439 case 0x201: /* Jfp1 */
7866b9fa
LS		 2440 bt_dev_dbg(hdev, "PPAG not supported for Intel CNVr (0x%3x)",
2441 ver->cnvr_top & 0xFFF);
c585a92b
SS		 2442 return;
2443 }
2444
902160cd
K		 2445 handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
2446 if (!handle) {
2447 bt_dev_info(hdev, "No support for BT device in ACPI firmware");
2448 return;
2449 }
2450
c585a92b
SS		 2451 memset(&ppag, 0, sizeof(ppag));
2452
2453 ppag.hdev = hdev;
294d749b 2454 ppag.status = AE_NOT_FOUND;
902160cd
K		 2455 acpi_walk_namespace(ACPI_TYPE_PACKAGE, handle, 1, NULL,
2456 btintel_ppag_callback, &ppag, NULL);
c585a92b 2457
294d749b
K		 2458 if (ACPI_FAILURE(ppag.status)) {
2459 if (ppag.status == AE_NOT_FOUND) {
2460 bt_dev_dbg(hdev, "PPAG-BT: ACPI entry not found");
c585a92b 2461 return;
294d749b 2462 }
c585a92b
SS		 2463 return;
2464 }
2465
2466 if (ppag.domain != 0x12) {
7866b9fa 2467 bt_dev_dbg(hdev, "PPAG-BT: Bluetooth domain is disabled in ACPI firmware");
c585a92b
SS		 2468 return;
2469 }
2470
7866b9fa
LS		 2471 /* PPAG mode
2472 * BIT 0 : 0 Disabled in EU
2473 * 1 Enabled in EU
2474 * BIT 1 : 0 Disabled in China
2475 * 1 Enabled in China
2476 */
2477 if ((ppag.mode & 0x01) != BIT(0) && (ppag.mode & 0x02) != BIT(1)) {
2478 bt_dev_dbg(hdev, "PPAG-BT: EU, China mode are disabled in CB/BIOS");
c585a92b
SS		 2479 return;
2480 }
2481
7866b9fa
LS		 2482 ppag_cmd.ppag_enable_flags = cpu_to_le32(ppag.mode);
2483
2484 skb = __hci_cmd_sync(hdev, INTEL_OP_PPAG_CMD, sizeof(ppag_cmd), &ppag_cmd, HCI_CMD_TIMEOUT);
c585a92b
SS		 2485 if (IS_ERR(skb)) {
2486 bt_dev_warn(hdev, "Failed to send PPAG Enable (%ld)", PTR_ERR(skb));
2487 return;
2488 }
7866b9fa 2489 bt_dev_info(hdev, "PPAG-BT: Enabled (Mode %d)", ppag.mode);
c585a92b
SS		 2490 kfree_skb(skb);
2491}
2492
8f0a3786
K		 2493static int btintel_acpi_reset_method(struct hci_dev *hdev)
2494{
2495 int ret = 0;
2496 acpi_status status;
2497 union acpi_object *p, *ref;
2498 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
2499
2500 status = acpi_evaluate_object(ACPI_HANDLE(GET_HCIDEV_DEV(hdev)), "_PRR", NULL, &buffer);
2501 if (ACPI_FAILURE(status)) {
2502 bt_dev_err(hdev, "Failed to run _PRR method");
2503 ret = -ENODEV;
2504 return ret;
2505 }
2506 p = buffer.pointer;
2507
2508 if (p->package.count != 1 || p->type != ACPI_TYPE_PACKAGE) {
2509 bt_dev_err(hdev, "Invalid arguments");
2510 ret = -EINVAL;
2511 goto exit_on_error;
2512 }
2513
2514 ref = &p->package.elements[0];
2515 if (ref->type != ACPI_TYPE_LOCAL_REFERENCE) {
2516 bt_dev_err(hdev, "Invalid object type: 0x%x", ref->type);
2517 ret = -EINVAL;
2518 goto exit_on_error;
2519 }
2520
2521 status = acpi_evaluate_object(ref->reference.handle, "_RST", NULL, NULL);
2522 if (ACPI_FAILURE(status)) {
2523 bt_dev_err(hdev, "Failed to run_RST method");
2524 ret = -ENODEV;
2525 goto exit_on_error;
2526 }
2527
2528exit_on_error:
2529 kfree(buffer.pointer);
2530 return ret;
2531}
2532
2533static void btintel_set_dsm_reset_method(struct hci_dev *hdev,
2534 struct intel_version_tlv *ver_tlv)
2535{
2536 struct btintel_data *data = hci_get_priv(hdev);
2537 acpi_handle handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
2538 u8 reset_payload[4] = {0x01, 0x00, 0x01, 0x00};
2539 union acpi_object *obj, argv4;
2540 enum {
2541 RESET_TYPE_WDISABLE2,
2542 RESET_TYPE_VSEC
2543 };
2544
2545 handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
2546
2547 if (!handle) {
2548 bt_dev_dbg(hdev, "No support for bluetooth device in ACPI firmware");
2549 return;
2550 }
2551
2552 if (!acpi_has_method(handle, "_PRR")) {
2553 bt_dev_err(hdev, "No support for _PRR ACPI method");
2554 return;
2555 }
2556
2557 switch (ver_tlv->cnvi_top & 0xfff) {
2558 case 0x910: /* GalePeak2 */
2559 reset_payload[2] = RESET_TYPE_VSEC;
2560 break;
2561 default:
2562 /* WDISABLE2 is the default reset method */
2563 reset_payload[2] = RESET_TYPE_WDISABLE2;
2564
2565 if (!acpi_check_dsm(handle, &btintel_guid_dsm, 0,
2566 BIT(DSM_SET_WDISABLE2_DELAY))) {
2567 bt_dev_err(hdev, "No dsm support to set reset delay");
2568 return;
2569 }
2570 argv4.integer.type = ACPI_TYPE_INTEGER;
2571 /* delay required to toggle BT power */
2572 argv4.integer.value = 160;
2573 obj = acpi_evaluate_dsm(handle, &btintel_guid_dsm, 0,
2574 DSM_SET_WDISABLE2_DELAY, &argv4);
2575 if (!obj) {
2576 bt_dev_err(hdev, "Failed to call dsm to set reset delay");
2577 return;
2578 }
2579 ACPI_FREE(obj);
2580 }
2581
2582 bt_dev_info(hdev, "DSM reset method type: 0x%02x", reset_payload[2]);
2583
2584 if (!acpi_check_dsm(handle, &btintel_guid_dsm, 0,
2585 DSM_SET_RESET_METHOD)) {
2586 bt_dev_warn(hdev, "No support for dsm to set reset method");
2587 return;
2588 }
2589 argv4.buffer.type = ACPI_TYPE_BUFFER;
2590 argv4.buffer.length = sizeof(reset_payload);
2591 argv4.buffer.pointer = reset_payload;
2592
2593 obj = acpi_evaluate_dsm(handle, &btintel_guid_dsm, 0,
2594 DSM_SET_RESET_METHOD, &argv4);
2595 if (!obj) {
2596 bt_dev_err(hdev, "Failed to call dsm to set reset method");
2597 return;
2598 }
2599 ACPI_FREE(obj);
2600 data->acpi_reset_method = btintel_acpi_reset_method;
2601}
2602
67d4dbac
K		 2603int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
2604 struct intel_version_tlv *ver)
019a1caa
THJA		 2605{
2606 u32 boot_param;
2607 char ddcname[64];
2608 int err;
019a1caa
THJA		 2609 struct intel_version_tlv new_ver;
2610
2611 bt_dev_dbg(hdev, "");
2612
2613 /* Set the default boot parameter to 0x0 and it is updated to
2614 * SKU specific boot parameter after reading Intel_Write_Boot_Params
2615 * command while downloading the firmware.
2616 */
2617 boot_param = 0x00000000;
2618
2619 btintel_set_flag(hdev, INTEL_BOOTLOADER);
2620
2621 err = btintel_prepare_fw_download_tlv(hdev, ver, &boot_param);
2622 if (err)
2623 return err;
2624
2625 /* check if controller is already having an operational firmware */
5ec6feb1 2626 if (ver->img_type == BTINTEL_IMG_OP)
019a1caa
THJA		 2627 goto finish;
2628
2629 err = btintel_boot(hdev, boot_param);
2630 if (err)
2631 return err;
2632
f3b845e0
K		 2633 err = btintel_read_version_tlv(hdev, ver);
2634 if (err)
2635 return err;
2636
2637 /* If image type returned is BTINTEL_IMG_IML, then controller supports
2638 * intermediae loader image
2639 */
2640 if (ver->img_type == BTINTEL_IMG_IML) {
2641 err = btintel_prepare_fw_download_tlv(hdev, ver, &boot_param);
2642 if (err)
2643 return err;
2644
2645 err = btintel_boot(hdev, boot_param);
2646 if (err)
2647 return err;
2648 }
2649
019a1caa
THJA		 2650 btintel_clear_flag(hdev, INTEL_BOOTLOADER);
2651
2652 btintel_get_fw_name_tlv(ver, ddcname, sizeof(ddcname), "ddc");
2653 /* Once the device is running in operational mode, it needs to
2654 * apply the device configuration (DDC) parameters.
2655 *
2656 * The device can work without DDC parameters, so even if it
2657 * fails to load the file, no need to fail the setup.
2658 */
2659 btintel_load_ddc_config(hdev, ddcname);
2660
a358ef86
K		 2661 /* Read supported use cases and set callbacks to fetch datapath id */
2662 btintel_configure_offload(hdev);
2663
927ac8da
JH		 2664 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);
2665
c585a92b
SS		 2666 /* Set PPAG feature */
2667 btintel_set_ppag(hdev, ver);
2668
019a1caa
THJA		 2669 /* Read the Intel version information after loading the FW */
2670 err = btintel_read_version_tlv(hdev, &new_ver);
2671 if (err)
2672 return err;
2673
2674 btintel_version_info_tlv(hdev, &new_ver);
2675
2676finish:
2677 /* Set the event mask for Intel specific vendor events. This enables
2678 * a few extra events that are useful during general operation. It
2679 * does not enable any debugging related events.
2680 *
2681 * The device will function correctly without these events enabled
2682 * and thus no need to fail the setup.
2683 */
2684 btintel_set_event_mask(hdev, false);
2685
2686 return 0;
2687}
67d4dbac 2688EXPORT_SYMBOL_GPL(btintel_bootloader_setup_tlv);
019a1caa 2689
67d4dbac 2690void btintel_set_msft_opcode(struct hci_dev *hdev, u8 hw_variant)
1804fdf6
THJA		 2691{
2692 switch (hw_variant) {
2693 /* Legacy bootloader devices that supports MSFT Extension */
2694 case 0x11: /* JfP */
2695 case 0x12: /* ThP */
2696 case 0x13: /* HrP */
2697 case 0x14: /* CcP */
2698 /* All Intel new genration controllers support the Microsoft vendor
2699 * extension are using 0xFC1E for VsMsftOpCode.
2700 */
2701 case 0x17:
2702 case 0x18:
2703 case 0x19:
b43331b4 2704 case 0x1b:
bb925bf9 2705 case 0x1c:
87ad06a2 2706 case 0x1e:
1804fdf6
THJA		 2707 hci_set_msft_opcode(hdev, 0xFC1E);
2708 break;
2709 default:
2710 /* Not supported */
2711 break;
2712 }
2713}
67d4dbac 2714EXPORT_SYMBOL_GPL(btintel_set_msft_opcode);
1804fdf6 2715
a7ba218a
K		 2716static void btintel_print_fseq_info(struct hci_dev *hdev)
2717{
2718 struct sk_buff *skb;
2719 u8 *p;
2720 u32 val;
2721 const char *str;
2722
2723 skb = __hci_cmd_sync(hdev, 0xfcb3, 0, NULL, HCI_CMD_TIMEOUT);
2724 if (IS_ERR(skb)) {
2725 bt_dev_dbg(hdev, "Reading fseq status command failed (%ld)",
2726 PTR_ERR(skb));
2727 return;
2728 }
2729
2730 if (skb->len < (sizeof(u32) * 16 + 2)) {
2731 bt_dev_dbg(hdev, "Malformed packet of length %u received",
2732 skb->len);
2733 kfree_skb(skb);
2734 return;
2735 }
2736
2737 p = skb_pull_data(skb, 1);
2738 if (*p) {
2739 bt_dev_dbg(hdev, "Failed to get fseq status (0x%2.2x)", *p);
2740 kfree_skb(skb);
2741 return;
2742 }
2743
2744 p = skb_pull_data(skb, 1);
2745 switch (*p) {
2746 case 0:
2747 str = "Success";
2748 break;
2749 case 1:
2750 str = "Fatal error";
2751 break;
2752 case 2:
2753 str = "Semaphore acquire error";
2754 break;
2755 default:
2756 str = "Unknown error";
2757 break;
2758 }
2759
2760 if (*p) {
2761 bt_dev_err(hdev, "Fseq status: %s (0x%2.2x)", str, *p);
2762 kfree_skb(skb);
2763 return;
2764 }
2765
2766 bt_dev_info(hdev, "Fseq status: %s (0x%2.2x)", str, *p);
2767
2768 val = get_unaligned_le32(skb_pull_data(skb, 4));
2769 bt_dev_dbg(hdev, "Reason: 0x%8.8x", val);
2770
2771 val = get_unaligned_le32(skb_pull_data(skb, 4));
2772 bt_dev_dbg(hdev, "Global version: 0x%8.8x", val);
2773
2774 val = get_unaligned_le32(skb_pull_data(skb, 4));
2775 bt_dev_dbg(hdev, "Installed version: 0x%8.8x", val);
2776
2777 p = skb->data;
2778 skb_pull_data(skb, 4);
2779 bt_dev_info(hdev, "Fseq executed: %2.2u.%2.2u.%2.2u.%2.2u", p[0], p[1],
2780 p[2], p[3]);
2781
2782 p = skb->data;
2783 skb_pull_data(skb, 4);
2784 bt_dev_info(hdev, "Fseq BT Top: %2.2u.%2.2u.%2.2u.%2.2u", p[0], p[1],
2785 p[2], p[3]);
2786
2787 val = get_unaligned_le32(skb_pull_data(skb, 4));
2788 bt_dev_dbg(hdev, "Fseq Top init version: 0x%8.8x", val);
2789
2790 val = get_unaligned_le32(skb_pull_data(skb, 4));
2791 bt_dev_dbg(hdev, "Fseq Cnvio init version: 0x%8.8x", val);
2792
2793 val = get_unaligned_le32(skb_pull_data(skb, 4));
2794 bt_dev_dbg(hdev, "Fseq MBX Wifi file version: 0x%8.8x", val);
2795
2796 val = get_unaligned_le32(skb_pull_data(skb, 4));
2797 bt_dev_dbg(hdev, "Fseq BT version: 0x%8.8x", val);
2798
2799 val = get_unaligned_le32(skb_pull_data(skb, 4));
2800 bt_dev_dbg(hdev, "Fseq Top reset address: 0x%8.8x", val);
2801
2802 val = get_unaligned_le32(skb_pull_data(skb, 4));
2803 bt_dev_dbg(hdev, "Fseq MBX timeout: 0x%8.8x", val);
2804
2805 val = get_unaligned_le32(skb_pull_data(skb, 4));
2806 bt_dev_dbg(hdev, "Fseq MBX ack: 0x%8.8x", val);
2807
2808 val = get_unaligned_le32(skb_pull_data(skb, 4));
2809 bt_dev_dbg(hdev, "Fseq CNVi id: 0x%8.8x", val);
2810
2811 val = get_unaligned_le32(skb_pull_data(skb, 4));
2812 bt_dev_dbg(hdev, "Fseq CNVr id: 0x%8.8x", val);
2813
2814 val = get_unaligned_le32(skb_pull_data(skb, 4));
2815 bt_dev_dbg(hdev, "Fseq Error handle: 0x%8.8x", val);
2816
2817 val = get_unaligned_le32(skb_pull_data(skb, 4));
2818 bt_dev_dbg(hdev, "Fseq Magic noalive indication: 0x%8.8x", val);
2819
2820 val = get_unaligned_le32(skb_pull_data(skb, 4));
2821 bt_dev_dbg(hdev, "Fseq OTP version: 0x%8.8x", val);
2822
2823 val = get_unaligned_le32(skb_pull_data(skb, 4));
2824 bt_dev_dbg(hdev, "Fseq MBX otp version: 0x%8.8x", val);
2825
2826 kfree_skb(skb);
2827}
2828
ca5425e1
THJA		 2829static int btintel_setup_combined(struct hci_dev *hdev)
2830{
2831 const u8 param[1] = { 0xFF };
2832 struct intel_version ver;
2833 struct intel_version_tlv ver_tlv;
2834 struct sk_buff *skb;
2835 int err;
2836
2837 BT_DBG("%s", hdev->name);
2838
ea7c4c0e
THJA		 2839 /* The some controllers have a bug with the first HCI command sent to it
2840 * returning number of completed commands as zero. This would stall the
2841 * command processing in the Bluetooth core.
2842 *
2843 * As a workaround, send HCI Reset command first which will reset the
2844 * number of completed commands and allow normal command processing
2845 * from now on.
95655456
THJA		 2846 *
2847 * Regarding the INTEL_BROKEN_SHUTDOWN_LED flag, these devices maybe
2848 * in the SW_RFKILL ON state as a workaround of fixing LED issue during
2849 * the shutdown() procedure, and once the device is in SW_RFKILL ON
2850 * state, the only way to exit out of it is sending the HCI_Reset
2851 * command.
ea7c4c0e 2852 */
95655456
THJA		 2853 if (btintel_test_flag(hdev, INTEL_BROKEN_INITIAL_NCMD) ||
2854 btintel_test_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED)) {
ea7c4c0e
THJA		 2855 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL,
2856 HCI_INIT_TIMEOUT);
2857 if (IS_ERR(skb)) {
2858 bt_dev_err(hdev,
2859 "sending initial HCI reset failed (%ld)",
2860 PTR_ERR(skb));
2861 return PTR_ERR(skb);
2862 }
2863 kfree_skb(skb);
2864 }
2865
ca5425e1
THJA		 2866 /* Starting from TyP device, the command parameter and response are
2867 * changed even though the OCF for HCI_Intel_Read_Version command
2868 * remains same. The legacy devices can handle even if the
2869 * command has a parameter and returns a correct version information.
2870 * So, it uses new format to support both legacy and new format.
2871 */
2872 skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT);
2873 if (IS_ERR(skb)) {
2874 bt_dev_err(hdev, "Reading Intel version command failed (%ld)",
2875 PTR_ERR(skb));
2876 return PTR_ERR(skb);
2877 }
2878
2879 /* Check the status */
2880 if (skb->data[0]) {
2881 bt_dev_err(hdev, "Intel Read Version command failed (%02x)",
2882 skb->data[0]);
2883 err = -EIO;
2884 goto exit_error;
2885 }
2886
3df4dfbe
THJA		 2887 /* Apply the common HCI quirks for Intel device */
2888 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
2889 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2890 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
2891
927ac8da
JH		 2892 /* Set up the quality report callback for Intel devices */
2893 hdev->set_quality_report = btintel_set_quality_report;
2894
ca5425e1
THJA		 2895 /* For Legacy device, check the HW platform value and size */
2896 if (skb->len == sizeof(ver) && skb->data[1] == 0x37) {
2897 bt_dev_dbg(hdev, "Read the legacy Intel version information");
2898
2899 memcpy(&ver, skb->data, sizeof(ver));
2900
2901 /* Display version information */
2902 btintel_version_info(hdev, &ver);
2903
2904 /* Check for supported iBT hardware variants of this firmware
2905 * loading method.
2906 *
2907 * This check has been put in place to ensure correct forward
2908 * compatibility options when newer hardware variants come
2909 * along.
2910 */
2911 switch (ver.hw_variant) {
2912 case 0x07: /* WP */
2913 case 0x08: /* StP */
2914 /* Legacy ROM product */
55380714 2915 btintel_set_flag(hdev, INTEL_ROM_LEGACY);
ffcba827 2916
3df4dfbe
THJA		 2917 /* Apply the device specific HCI quirks
2918 *
55235304
THJA		 2919 * WBS for SdP - For the Legacy ROM products, only SdP
2920 * supports the WBS. But the version information is not
2921 * enough to use here because the StP2 and SdP have same
2922 * hw_variant and fw_variant. So, this flag is set by
2923 * the transport driver (btusb) based on the HW info
2924 * (idProduct)
3df4dfbe 2925 */
55235304
THJA		 2926 if (!btintel_test_flag(hdev,
2927 INTEL_ROM_LEGACY_NO_WBS_SUPPORT))
3df4dfbe
THJA		 2928 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED,
2929 &hdev->quirks);
dd0a1794
K		 2930 if (ver.hw_variant == 0x08 && ver.fw_variant == 0x22)
2931 set_bit(HCI_QUIRK_VALID_LE_STATES,
2932 &hdev->quirks);
3df4dfbe 2933
83f2dafe 2934 err = btintel_legacy_rom_setup(hdev, &ver);
ca5425e1
THJA		 2935 break;
2936 case 0x0b: /* SfP */
ca5425e1
THJA		 2937 case 0x11: /* JfP */
2938 case 0x12: /* ThP */
2939 case 0x13: /* HrP */
2940 case 0x14: /* CcP */
dd0a1794
K		 2941 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
2942 fallthrough;
2943 case 0x0c: /* WsP */
3df4dfbe
THJA		 2944 /* Apply the device specific HCI quirks
2945 *
2946 * All Legacy bootloader devices support WBS
2947 */
2948 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED,
2949 &hdev->quirks);
2950
253f3399
LAD		 2951 /* These variants don't seem to support LE Coded PHY */
2952 set_bit(HCI_QUIRK_BROKEN_LE_CODED, &hdev->quirks);
2953
1804fdf6
THJA		 2954 /* Setup MSFT Extension support */
2955 btintel_set_msft_opcode(hdev, ver.hw_variant);
2956
019a1caa 2957 err = btintel_bootloader_setup(hdev, &ver);
af395330 2958 btintel_register_devcoredump_support(hdev);
ca5425e1
THJA		 2959 break;
2960 default:
2961 bt_dev_err(hdev, "Unsupported Intel hw variant (%u)",
2962 ver.hw_variant);
2963 err = -EINVAL;
2964 }
2965
b39910bb
AP		 2966 hci_set_hw_info(hdev,
2967 "INTEL platform=%u variant=%u revision=%u",
2968 ver.hw_platform, ver.hw_variant,
2969 ver.hw_revision);
2970
ca5425e1
THJA		 2971 goto exit_error;
2972 }
2973
89350531
K		 2974 /* memset ver_tlv to start with clean state as few fields are exclusive
2975 * to bootloader mode and are not populated in operational mode
2976 */
2977 memset(&ver_tlv, 0, sizeof(ver_tlv));
ca5425e1
THJA		 2978 /* For TLV type device, parse the tlv data */
2979 err = btintel_parse_version_tlv(hdev, &ver_tlv, skb);
2980 if (err) {
2981 bt_dev_err(hdev, "Failed to parse TLV version information");
2982 goto exit_error;
2983 }
2984
2985 if (INTEL_HW_PLATFORM(ver_tlv.cnvi_bt) != 0x37) {
2986 bt_dev_err(hdev, "Unsupported Intel hardware platform (0x%2x)",
2987 INTEL_HW_PLATFORM(ver_tlv.cnvi_bt));
2988 err = -EINVAL;
2989 goto exit_error;
2990 }
2991
019a1caa
THJA		 2992 /* Check for supported iBT hardware variants of this firmware
2993 * loading method.
2994 *
2995 * This check has been put in place to ensure correct forward
2996 * compatibility options when newer hardware variants come
2997 * along.
2998 */
2999 switch (INTEL_HW_VARIANT(ver_tlv.cnvi_bt)) {
c86c7285
THJA		 3000 case 0x11: /* JfP */
3001 case 0x12: /* ThP */
3002 case 0x13: /* HrP */
3003 case 0x14: /* CcP */
3547a008
THJA		 3004 /* Some legacy bootloader devices starting from JfP,
3005 * the operational firmware supports both old and TLV based
3006 * HCI_Intel_Read_Version command based on the command
3007 * parameter.
3008 *
3009 * For upgrading firmware case, the TLV based version cannot
3010 * be used because the firmware filename for legacy bootloader
3011 * is based on the old format.
c86c7285
THJA		 3012 *
3013 * Also, it is not easy to convert TLV based version from the
3014 * legacy version format.
3015 *
3016 * So, as a workaround for those devices, use the legacy
3017 * HCI_Intel_Read_Version to get the version information and
3018 * run the legacy bootloader setup.
3019 */
3020 err = btintel_read_version(hdev, &ver);
3021 if (err)
cee50ce8 3022 break;
3547a008
THJA		 3023
3024 /* Apply the device specific HCI quirks
3025 *
3026 * All Legacy bootloader devices support WBS
3027 */
3028 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3029
253f3399
LAD		 3030 /* These variants don't seem to support LE Coded PHY */
3031 set_bit(HCI_QUIRK_BROKEN_LE_CODED, &hdev->quirks);
3032
dd0a1794
K		 3033 /* Set Valid LE States quirk */
3034 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
3547a008
THJA		 3035
3036 /* Setup MSFT Extension support */
3037 btintel_set_msft_opcode(hdev, ver.hw_variant);
3038
c86c7285 3039 err = btintel_bootloader_setup(hdev, &ver);
af395330 3040 btintel_register_devcoredump_support(hdev);
c86c7285 3041 break;
019a1caa
THJA		 3042 case 0x17:
3043 case 0x18:
3044 case 0x19:
b43331b4 3045 case 0x1b:
bb925bf9 3046 case 0x1c:
87ad06a2 3047 case 0x1e:
019a1caa
THJA		 3048 /* Display version information of TLV type */
3049 btintel_version_info_tlv(hdev, &ver_tlv);
3050
3df4dfbe
THJA		 3051 /* Apply the device specific HCI quirks for TLV based devices
3052 *
3053 * All TLV based devices support WBS
3054 */
3055 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3056
77f542b1
C		 3057 /* Apply LE States quirk from solar onwards */
3058 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
3df4dfbe 3059
1804fdf6
THJA		 3060 /* Setup MSFT Extension support */
3061 btintel_set_msft_opcode(hdev,
3062 INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
8f0a3786 3063 btintel_set_dsm_reset_method(hdev, &ver_tlv);
1804fdf6 3064
019a1caa 3065 err = btintel_bootloader_setup_tlv(hdev, &ver_tlv);
af395330 3066 btintel_register_devcoredump_support(hdev);
a7ba218a 3067 btintel_print_fseq_info(hdev);
019a1caa
THJA		 3068 break;
3069 default:
3070 bt_dev_err(hdev, "Unsupported Intel hw variant (%u)",
3071 INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
cee50ce8
WS		 3072 err = -EINVAL;
3073 break;
019a1caa 3074 }
ca5425e1 3075
b39910bb
AP		 3076 hci_set_hw_info(hdev, "INTEL platform=%u variant=%u",
3077 INTEL_HW_PLATFORM(ver_tlv.cnvi_bt),
3078 INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
3079
ca5425e1
THJA		 3080exit_error:
3081 kfree_skb(skb);
3082
3083 return err;
3084}
3085
67d4dbac 3086int btintel_shutdown_combined(struct hci_dev *hdev)
ca5425e1
THJA		 3087{
3088 struct sk_buff *skb;
ffcba827 3089 int ret;
ca5425e1
THJA		 3090
3091 /* Send HCI Reset to the controller to stop any BT activity which
3092 * were triggered. This will help to save power and maintain the
3093 * sync b/w Host and controller
3094 */
3095 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3096 if (IS_ERR(skb)) {
3097 bt_dev_err(hdev, "HCI reset during shutdown failed");
3098 return PTR_ERR(skb);
3099 }
3100 kfree_skb(skb);
3101
ffcba827
THJA		 3102
3103 /* Some platforms have an issue with BT LED when the interface is
3104 * down or BT radio is turned off, which takes 5 seconds to BT LED
95655456
THJA		 3105 * goes off. As a workaround, sends HCI_Intel_SW_RFKILL to put the
3106 * device in the RFKILL ON state which turns off the BT LED immediately.
ffcba827 3107 */
95655456 3108 if (btintel_test_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED)) {
ffcba827
THJA		 3109 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
3110 if (IS_ERR(skb)) {
3111 ret = PTR_ERR(skb);
3112 bt_dev_err(hdev, "turning off Intel device LED failed");
3113 return ret;
3114 }
3115 kfree_skb(skb);
3116 }
3117
ca5425e1
THJA		 3118 return 0;
3119}
67d4dbac 3120EXPORT_SYMBOL_GPL(btintel_shutdown_combined);
ca5425e1 3121
af395330 3122int btintel_configure_setup(struct hci_dev *hdev, const char *driver_name)
ca5425e1 3123{
ca5425e1
THJA		 3124 hdev->manufacturer = 2;
3125 hdev->setup = btintel_setup_combined;
3126 hdev->shutdown = btintel_shutdown_combined;
019a1caa 3127 hdev->hw_error = btintel_hw_error;
55380714 3128 hdev->set_diag = btintel_set_diag_combined;
83f2dafe 3129 hdev->set_bdaddr = btintel_set_bdaddr;
ca5425e1 3130
af395330
APS		 3131 coredump_info.driver_name = driver_name;
3132
ca5425e1
THJA		 3133 return 0;
3134}
3135EXPORT_SYMBOL_GPL(btintel_configure_setup);
3136
123c2631
LAD		 3137static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
3138{
3139 struct intel_tlv *tlv = (void *)&skb->data[5];
3140
3141 /* The first event is always an event type TLV */
3142 if (tlv->type != INTEL_TLV_TYPE_ID)
3143 goto recv_frame;
3144
3145 switch (tlv->val[0]) {
3146 case INTEL_TLV_SYSTEM_EXCEPTION:
3147 case INTEL_TLV_FATAL_EXCEPTION:
3148 case INTEL_TLV_DEBUG_EXCEPTION:
3149 case INTEL_TLV_TEST_EXCEPTION:
3150 /* Generate devcoredump from exception */
3151 if (!hci_devcd_init(hdev, skb->len)) {
3152 hci_devcd_append(hdev, skb);
3153 hci_devcd_complete(hdev);
3154 } else {
3155 bt_dev_err(hdev, "Failed to generate devcoredump");
3156 kfree_skb(skb);
3157 }
3158 return 0;
3159 default:
3160 bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
3161 }
3162
3163recv_frame:
3164 return hci_recv_frame(hdev, skb);
3165}
3166
3167int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
3168{
3169 struct hci_event_hdr *hdr = (void *)skb->data;
3170 const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
3171
3172 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
3173 hdr->plen > 0) {
3174 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
3175 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
3176
3177 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
3178 switch (skb->data[2]) {
3179 case 0x02:
3180 /* When switching to the operational firmware
3181 * the device sends a vendor specific event
3182 * indicating that the bootup completed.
3183 */
3184 btintel_bootup(hdev, ptr, len);
3185 break;
3186 case 0x06:
3187 /* When the firmware loading completes the
3188 * device sends out a vendor specific event
3189 * indicating the result of the firmware
3190 * loading.
3191 */
3192 btintel_secure_send_result(hdev, ptr, len);
3193 break;
3194 }
3195 }
3196
3197 /* Handle all diagnostics events separately. May still call
3198 * hci_recv_frame.
3199 */
3200 if (len >= sizeof(diagnostics_hdr) &&
3201 memcmp(&skb->data[2], diagnostics_hdr,
3202 sizeof(diagnostics_hdr)) == 0) {
3203 return btintel_diagnostics(hdev, skb);
3204 }
3205 }
3206
3207 return hci_recv_frame(hdev, skb);
3208}
3209EXPORT_SYMBOL_GPL(btintel_recv_event);
3210
019a1caa
THJA		 3211void btintel_bootup(struct hci_dev *hdev, const void *ptr, unsigned int len)
3212{
3213 const struct intel_bootup *evt = ptr;
3214
3215 if (len != sizeof(*evt))
3216 return;
3217
3218 if (btintel_test_and_clear_flag(hdev, INTEL_BOOTING))
3219 btintel_wake_up_flag(hdev, INTEL_BOOTING);
3220}
3221EXPORT_SYMBOL_GPL(btintel_bootup);
3222
3223void btintel_secure_send_result(struct hci_dev *hdev,
3224 const void *ptr, unsigned int len)
3225{
3226 const struct intel_secure_send_result *evt = ptr;
3227
3228 if (len != sizeof(*evt))
3229 return;
3230
3231 if (evt->result)
3232 btintel_set_flag(hdev, INTEL_FIRMWARE_FAILED);
3233
3234 if (btintel_test_and_clear_flag(hdev, INTEL_DOWNLOADING) &&
3235 btintel_test_flag(hdev, INTEL_FIRMWARE_LOADED))
3236 btintel_wake_up_flag(hdev, INTEL_DOWNLOADING);
3237}
3238EXPORT_SYMBOL_GPL(btintel_secure_send_result);
3239
48f0ed1b
MH		 3240MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
3241MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION);
3242MODULE_VERSION(VERSION);
3243MODULE_LICENSE("GPL");
0ed97e82
MH		 3244MODULE_FIRMWARE("intel/ibt-11-5.sfi");
3245MODULE_FIRMWARE("intel/ibt-11-5.ddc");
d1b7abae
JB		 3246MODULE_FIRMWARE("intel/ibt-12-16.sfi");
3247MODULE_FIRMWARE("intel/ibt-12-16.ddc");
Linux 6.x block layer and io_uring tree(s)