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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Bluetooth supports for Qualcomm Atheros chips
4 *
5 * Copyright (c) 2015 The Linux Foundation. All rights reserved.
6 */
7#include <linux/module.h>
8#include <linux/firmware.h>
9#include <linux/vmalloc.h>
10
11#include <net/bluetooth/bluetooth.h>
12#include <net/bluetooth/hci_core.h>
13
14#include "btqca.h"
15
16int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver,
17 enum qca_btsoc_type soc_type)
18{
19 struct sk_buff *skb;
20 struct edl_event_hdr *edl;
21 char cmd;
22 int err = 0;
23 u8 event_type = HCI_EV_VENDOR;
24 u8 rlen = sizeof(*edl) + sizeof(*ver);
25 u8 rtype = EDL_APP_VER_RES_EVT;
26
27 bt_dev_dbg(hdev, "QCA Version Request");
28
29 /* Unlike other SoC's sending version command response as payload to
30 * VSE event. WCN3991 sends version command response as a payload to
31 * command complete event.
32 */
33 if (soc_type >= QCA_WCN3991) {
34 event_type = 0;
35 rlen += 1;
36 rtype = EDL_PATCH_VER_REQ_CMD;
37 }
38
39 cmd = EDL_PATCH_VER_REQ_CMD;
40 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
41 &cmd, event_type, HCI_INIT_TIMEOUT);
42 if (IS_ERR(skb)) {
43 err = PTR_ERR(skb);
44 bt_dev_err(hdev, "Reading QCA version information failed (%d)",
45 err);
46 return err;
47 }
48
49 if (skb->len != rlen) {
50 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
51 err = -EILSEQ;
52 goto out;
53 }
54
55 edl = (struct edl_event_hdr *)(skb->data);
56
57 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
58 edl->rtype != rtype) {
59 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
60 edl->rtype);
61 err = -EIO;
62 goto out;
63 }
64
65 if (soc_type >= QCA_WCN3991)
66 memcpy(ver, edl->data + 1, sizeof(*ver));
67 else
68 memcpy(ver, &edl->data, sizeof(*ver));
69
70 bt_dev_info(hdev, "QCA Product ID :0x%08x",
71 le32_to_cpu(ver->product_id));
72 bt_dev_info(hdev, "QCA SOC Version :0x%08x",
73 le32_to_cpu(ver->soc_id));
74 bt_dev_info(hdev, "QCA ROM Version :0x%08x",
75 le16_to_cpu(ver->rom_ver));
76 bt_dev_info(hdev, "QCA Patch Version:0x%08x",
77 le16_to_cpu(ver->patch_ver));
78
79 if (ver->soc_id == 0 || ver->rom_ver == 0)
80 err = -EILSEQ;
81
82out:
83 kfree_skb(skb);
84 if (err)
85 bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
86
87 return err;
88}
89EXPORT_SYMBOL_GPL(qca_read_soc_version);
90
91static int qca_read_fw_build_info(struct hci_dev *hdev)
92{
93 struct sk_buff *skb;
94 struct edl_event_hdr *edl;
95 char *build_label;
96 char cmd;
97 int build_lbl_len, err = 0;
98
99 bt_dev_dbg(hdev, "QCA read fw build info");
100
101 cmd = EDL_GET_BUILD_INFO_CMD;
102 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
103 &cmd, 0, HCI_INIT_TIMEOUT);
104 if (IS_ERR(skb)) {
105 err = PTR_ERR(skb);
106 bt_dev_err(hdev, "Reading QCA fw build info failed (%d)",
107 err);
108 return err;
109 }
110
111 if (skb->len < sizeof(*edl)) {
112 err = -EILSEQ;
113 goto out;
114 }
115
116 edl = (struct edl_event_hdr *)(skb->data);
117
118 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
119 edl->rtype != EDL_GET_BUILD_INFO_CMD) {
120 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
121 edl->rtype);
122 err = -EIO;
123 goto out;
124 }
125
126 if (skb->len < sizeof(*edl) + 1) {
127 err = -EILSEQ;
128 goto out;
129 }
130
131 build_lbl_len = edl->data[0];
132
133 if (skb->len < sizeof(*edl) + 1 + build_lbl_len) {
134 err = -EILSEQ;
135 goto out;
136 }
137
138 build_label = kstrndup(&edl->data[1], build_lbl_len, GFP_KERNEL);
139 if (!build_label) {
140 err = -ENOMEM;
141 goto out;
142 }
143
144 hci_set_fw_info(hdev, "%s", build_label);
145
146 bt_dev_info(hdev, "QCA FW build version: %s", build_label);
147
148 kfree(build_label);
149out:
150 kfree_skb(skb);
151 return err;
152}
153
154static int qca_send_patch_config_cmd(struct hci_dev *hdev)
155{
156 const u8 cmd[] = { EDL_PATCH_CONFIG_CMD, 0x01, 0, 0, 0 };
157 struct sk_buff *skb;
158 struct edl_event_hdr *edl;
159 int err;
160
161 bt_dev_dbg(hdev, "QCA Patch config");
162
163 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, sizeof(cmd),
164 cmd, 0, HCI_INIT_TIMEOUT);
165 if (IS_ERR(skb)) {
166 err = PTR_ERR(skb);
167 bt_dev_err(hdev, "Sending QCA Patch config failed (%d)", err);
168 return err;
169 }
170
171 if (skb->len != 2) {
172 bt_dev_err(hdev, "QCA Patch config cmd size mismatch len %d", skb->len);
173 err = -EILSEQ;
174 goto out;
175 }
176
177 edl = (struct edl_event_hdr *)(skb->data);
178
179 if (edl->cresp != EDL_PATCH_CONFIG_RES_EVT || edl->rtype != EDL_PATCH_CONFIG_CMD) {
180 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
181 edl->rtype);
182 err = -EIO;
183 goto out;
184 }
185
186 err = 0;
187
188out:
189 kfree_skb(skb);
190 return err;
191}
192
193static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid)
194{
195 u8 cmd;
196 struct sk_buff *skb;
197 struct edl_event_hdr *edl;
198 int err = 0;
199
200 cmd = EDL_GET_BID_REQ_CMD;
201 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
202 &cmd, 0, HCI_INIT_TIMEOUT);
203 if (IS_ERR(skb)) {
204 err = PTR_ERR(skb);
205 bt_dev_err(hdev, "Reading QCA board ID failed (%d)", err);
206 return err;
207 }
208
209 edl = skb_pull_data(skb, sizeof(*edl));
210 if (!edl) {
211 bt_dev_err(hdev, "QCA read board ID with no header");
212 err = -EILSEQ;
213 goto out;
214 }
215
216 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
217 edl->rtype != EDL_GET_BID_REQ_CMD) {
218 bt_dev_err(hdev, "QCA Wrong packet: %d %d", edl->cresp, edl->rtype);
219 err = -EIO;
220 goto out;
221 }
222
223 if (skb->len < 3) {
224 err = -EILSEQ;
225 goto out;
226 }
227
228 *bid = (edl->data[1] << 8) + edl->data[2];
229 bt_dev_dbg(hdev, "%s: bid = %x", __func__, *bid);
230
231out:
232 kfree_skb(skb);
233 return err;
234}
235
236int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
237{
238 struct sk_buff *skb;
239 int err;
240
241 bt_dev_dbg(hdev, "QCA pre shutdown cmd");
242
243 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
244 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
245
246 if (IS_ERR(skb)) {
247 err = PTR_ERR(skb);
248 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
249 return err;
250 }
251
252 kfree_skb(skb);
253
254 return 0;
255}
256EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
257
258static bool qca_filename_has_extension(const char *filename)
259{
260 const char *suffix = strrchr(filename, '.');
261
262 /* File extensions require a dot, but not as the first or last character */
263 if (!suffix || suffix == filename || *(suffix + 1) == '\0')
264 return 0;
265
266 /* Avoid matching directories with names that look like files with extensions */
267 return !strchr(suffix, '/');
268}
269
270static bool qca_get_alt_nvm_file(char *filename, size_t max_size)
271{
272 char fwname[64];
273 const char *suffix;
274
275 /* nvm file name has an extension, replace with .bin */
276 if (qca_filename_has_extension(filename)) {
277 suffix = strrchr(filename, '.');
278 strscpy(fwname, filename, suffix - filename + 1);
279 snprintf(fwname + (suffix - filename),
280 sizeof(fwname) - (suffix - filename), ".bin");
281 /* If nvm file is already the default one, return false to skip the retry. */
282 if (strcmp(fwname, filename) == 0)
283 return false;
284
285 snprintf(filename, max_size, "%s", fwname);
286 return true;
287 }
288 return false;
289}
290
291static int qca_tlv_check_data(struct hci_dev *hdev,
292 struct qca_fw_config *config,
293 u8 *fw_data, size_t fw_size,
294 enum qca_btsoc_type soc_type)
295{
296 const u8 *data;
297 u32 type_len;
298 u16 tag_id, tag_len;
299 int idx, length;
300 struct tlv_type_hdr *tlv;
301 struct tlv_type_patch *tlv_patch;
302 struct tlv_type_nvm *tlv_nvm;
303 uint8_t nvm_baud_rate = config->user_baud_rate;
304 u8 type;
305
306 config->dnld_mode = QCA_SKIP_EVT_NONE;
307 config->dnld_type = QCA_SKIP_EVT_NONE;
308
309 switch (config->type) {
310 case ELF_TYPE_PATCH:
311 if (fw_size < 7)
312 return -EINVAL;
313
314 config->dnld_mode = QCA_SKIP_EVT_VSE_CC;
315 config->dnld_type = QCA_SKIP_EVT_VSE_CC;
316
317 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]);
318 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]);
319 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]);
320 break;
321 case TLV_TYPE_PATCH:
322 if (fw_size < sizeof(struct tlv_type_hdr) + sizeof(struct tlv_type_patch))
323 return -EINVAL;
324
325 tlv = (struct tlv_type_hdr *)fw_data;
326 type_len = le32_to_cpu(tlv->type_len);
327 tlv_patch = (struct tlv_type_patch *)tlv->data;
328
329 /* For Rome version 1.1 to 3.1, all segment commands
330 * are acked by a vendor specific event (VSE).
331 * For Rome >= 3.2, the download mode field indicates
332 * if VSE is skipped by the controller.
333 * In case VSE is skipped, only the last segment is acked.
334 */
335 config->dnld_mode = tlv_patch->download_mode;
336 config->dnld_type = config->dnld_mode;
337
338 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
339 BT_DBG("Total Length : %d bytes",
340 le32_to_cpu(tlv_patch->total_size));
341 BT_DBG("Patch Data Length : %d bytes",
342 le32_to_cpu(tlv_patch->data_length));
343 BT_DBG("Signing Format Version : 0x%x",
344 tlv_patch->format_version);
345 BT_DBG("Signature Algorithm : 0x%x",
346 tlv_patch->signature);
347 BT_DBG("Download mode : 0x%x",
348 tlv_patch->download_mode);
349 BT_DBG("Reserved : 0x%x",
350 tlv_patch->reserved1);
351 BT_DBG("Product ID : 0x%04x",
352 le16_to_cpu(tlv_patch->product_id));
353 BT_DBG("Rom Build Version : 0x%04x",
354 le16_to_cpu(tlv_patch->rom_build));
355 BT_DBG("Patch Version : 0x%04x",
356 le16_to_cpu(tlv_patch->patch_version));
357 BT_DBG("Reserved : 0x%x",
358 le16_to_cpu(tlv_patch->reserved2));
359 BT_DBG("Patch Entry Address : 0x%x",
360 le32_to_cpu(tlv_patch->entry));
361 break;
362
363 case TLV_TYPE_NVM:
364 if (fw_size < sizeof(struct tlv_type_hdr))
365 return -EINVAL;
366
367 tlv = (struct tlv_type_hdr *)fw_data;
368
369 type_len = le32_to_cpu(tlv->type_len);
370 length = type_len >> 8;
371 type = type_len & 0xff;
372
373 /* Some NVM files have more than one set of tags, only parse
374 * the first set when it has type 2 for now. When there is
375 * more than one set there is an enclosing header of type 4.
376 */
377 if (type == 4) {
378 if (fw_size < 2 * sizeof(struct tlv_type_hdr))
379 return -EINVAL;
380
381 tlv++;
382
383 type_len = le32_to_cpu(tlv->type_len);
384 length = type_len >> 8;
385 type = type_len & 0xff;
386 }
387
388 BT_DBG("TLV Type\t\t : 0x%x", type);
389 BT_DBG("Length\t\t : %d bytes", length);
390
391 if (type != 2)
392 break;
393
394 if (fw_size < length + (tlv->data - fw_data))
395 return -EINVAL;
396
397 idx = 0;
398 data = tlv->data;
399 while (idx + sizeof(struct tlv_type_nvm) <= length) {
400 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
401
402 tag_id = le16_to_cpu(tlv_nvm->tag_id);
403 tag_len = le16_to_cpu(tlv_nvm->tag_len);
404
405 if (length < idx + sizeof(struct tlv_type_nvm) + tag_len)
406 return -EINVAL;
407
408 /* Update NVM tags as needed */
409 switch (tag_id) {
410 case EDL_TAG_ID_BD_ADDR:
411 if (tag_len != sizeof(bdaddr_t))
412 return -EINVAL;
413
414 memcpy(&config->bdaddr, tlv_nvm->data, sizeof(bdaddr_t));
415
416 break;
417
418 case EDL_TAG_ID_HCI:
419 if (tag_len < 3)
420 return -EINVAL;
421
422 /* HCI transport layer parameters
423 * enabling software inband sleep
424 * onto controller side.
425 */
426 tlv_nvm->data[0] |= 0x80;
427
428 /* UART Baud Rate */
429 if (soc_type >= QCA_WCN3991)
430 tlv_nvm->data[1] = nvm_baud_rate;
431 else
432 tlv_nvm->data[2] = nvm_baud_rate;
433
434 break;
435
436 case EDL_TAG_ID_DEEP_SLEEP:
437 if (tag_len < 1)
438 return -EINVAL;
439
440 /* Sleep enable mask
441 * enabling deep sleep feature on controller.
442 */
443 tlv_nvm->data[0] |= 0x01;
444
445 break;
446 }
447
448 idx += sizeof(struct tlv_type_nvm) + tag_len;
449 }
450 break;
451
452 default:
453 BT_ERR("Unknown TLV type %d", config->type);
454 return -EINVAL;
455 }
456
457 return 0;
458}
459
460static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
461 const u8 *data, enum qca_tlv_dnld_mode mode,
462 enum qca_btsoc_type soc_type)
463{
464 struct sk_buff *skb;
465 struct edl_event_hdr *edl;
466 struct tlv_seg_resp *tlv_resp;
467 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
468 int err = 0;
469 u8 event_type = HCI_EV_VENDOR;
470 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));
471 u8 rtype = EDL_TVL_DNLD_RES_EVT;
472
473 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
474 cmd[1] = seg_size;
475 memcpy(cmd + 2, data, seg_size);
476
477 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE)
478 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
479 cmd);
480
481 /* Unlike other SoC's sending version command response as payload to
482 * VSE event. WCN3991 sends version command response as a payload to
483 * command complete event.
484 */
485 if (soc_type >= QCA_WCN3991) {
486 event_type = 0;
487 rlen = sizeof(*edl);
488 rtype = EDL_PATCH_TLV_REQ_CMD;
489 }
490
491 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
492 event_type, HCI_INIT_TIMEOUT);
493 if (IS_ERR(skb)) {
494 err = PTR_ERR(skb);
495 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
496 return err;
497 }
498
499 if (skb->len != rlen) {
500 bt_dev_err(hdev, "QCA TLV response size mismatch");
501 err = -EILSEQ;
502 goto out;
503 }
504
505 edl = (struct edl_event_hdr *)(skb->data);
506
507 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {
508 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",
509 edl->cresp, edl->rtype);
510 err = -EIO;
511 }
512
513 if (soc_type >= QCA_WCN3991)
514 goto out;
515
516 tlv_resp = (struct tlv_seg_resp *)(edl->data);
517 if (tlv_resp->result) {
518 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
519 edl->cresp, edl->rtype, tlv_resp->result);
520 }
521
522out:
523 kfree_skb(skb);
524
525 return err;
526}
527
528static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
529{
530 struct hci_event_hdr *hdr;
531 struct hci_ev_cmd_complete *evt;
532 struct sk_buff *skb;
533
534 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
535 if (!skb)
536 return -ENOMEM;
537
538 hdr = skb_put(skb, sizeof(*hdr));
539 hdr->evt = HCI_EV_CMD_COMPLETE;
540 hdr->plen = sizeof(*evt) + 1;
541
542 evt = skb_put(skb, sizeof(*evt));
543 evt->ncmd = 1;
544 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
545
546 skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
547
548 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
549
550 return hci_recv_frame(hdev, skb);
551}
552
553static int qca_download_firmware(struct hci_dev *hdev,
554 struct qca_fw_config *config,
555 enum qca_btsoc_type soc_type,
556 u8 rom_ver)
557{
558 const struct firmware *fw;
559 u8 *data;
560 const u8 *segment;
561 int ret, size, remain, i = 0;
562
563 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
564
565 ret = request_firmware(&fw, config->fwname, &hdev->dev);
566 if (ret) {
567 /* If the board-specific file is missing, try loading the default
568 * one, unless that was attempted already.
569 */
570 if (config->type == TLV_TYPE_NVM &&
571 qca_get_alt_nvm_file(config->fwname, sizeof(config->fwname))) {
572 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
573 ret = request_firmware(&fw, config->fwname, &hdev->dev);
574 if (ret) {
575 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
576 config->fwname, ret);
577 return ret;
578 }
579 } else {
580 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
581 config->fwname, ret);
582 return ret;
583 }
584 }
585
586 size = fw->size;
587 data = vmalloc(fw->size);
588 if (!data) {
589 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s",
590 config->fwname);
591 release_firmware(fw);
592 return -ENOMEM;
593 }
594
595 memcpy(data, fw->data, size);
596 release_firmware(fw);
597
598 ret = qca_tlv_check_data(hdev, config, data, size, soc_type);
599 if (ret)
600 goto out;
601
602 segment = data;
603 remain = size;
604 while (remain > 0) {
605 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
606
607 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
608
609 remain -= segsize;
610 /* The last segment is always acked regardless download mode */
611 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
612 config->dnld_mode = QCA_SKIP_EVT_NONE;
613
614 ret = qca_tlv_send_segment(hdev, segsize, segment,
615 config->dnld_mode, soc_type);
616 if (ret)
617 goto out;
618
619 segment += segsize;
620 }
621
622 /* Latest qualcomm chipsets are not sending a command complete event
623 * for every fw packet sent. They only respond with a vendor specific
624 * event for the last packet. This optimization in the chip will
625 * decrease the BT in initialization time. Here we will inject a command
626 * complete event to avoid a command timeout error message.
627 */
628 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC ||
629 config->dnld_type == QCA_SKIP_EVT_VSE)
630 ret = qca_inject_cmd_complete_event(hdev);
631
632out:
633 vfree(data);
634
635 return ret;
636}
637
638static int qca_disable_soc_logging(struct hci_dev *hdev)
639{
640 struct sk_buff *skb;
641 u8 cmd[2];
642 int err;
643
644 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP;
645 cmd[1] = 0x00;
646 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd,
647 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
648 if (IS_ERR(skb)) {
649 err = PTR_ERR(skb);
650 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err);
651 return err;
652 }
653
654 kfree_skb(skb);
655
656 return 0;
657}
658
659int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
660{
661 struct sk_buff *skb;
662 u8 cmd[9];
663 int err;
664
665 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
666 cmd[1] = 0x02; /* TAG ID */
667 cmd[2] = sizeof(bdaddr_t); /* size */
668 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
669 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
670 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
671 if (IS_ERR(skb)) {
672 err = PTR_ERR(skb);
673 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
674 return err;
675 }
676
677 kfree_skb(skb);
678
679 return 0;
680}
681EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
682
683static int qca_check_bdaddr(struct hci_dev *hdev, const struct qca_fw_config *config)
684{
685 struct hci_rp_read_bd_addr *bda;
686 struct sk_buff *skb;
687 int err;
688
689 if (bacmp(&hdev->public_addr, BDADDR_ANY))
690 return 0;
691
692 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
693 HCI_INIT_TIMEOUT);
694 if (IS_ERR(skb)) {
695 err = PTR_ERR(skb);
696 bt_dev_err(hdev, "Failed to read device address (%d)", err);
697 return err;
698 }
699
700 if (skb->len != sizeof(*bda)) {
701 bt_dev_err(hdev, "Device address length mismatch");
702 kfree_skb(skb);
703 return -EIO;
704 }
705
706 bda = (struct hci_rp_read_bd_addr *)skb->data;
707 if (!bacmp(&bda->bdaddr, &config->bdaddr))
708 hci_set_quirk(hdev, HCI_QUIRK_USE_BDADDR_PROPERTY);
709
710 kfree_skb(skb);
711
712 return 0;
713}
714
715static void qca_get_nvm_name_by_board(char *fwname, size_t max_size,
716 const char *stem, enum qca_btsoc_type soc_type,
717 struct qca_btsoc_version ver, u8 rom_ver, u16 bid)
718{
719 const char *variant;
720 const char *prefix;
721
722 /* Set the default value to variant and prefix */
723 variant = "";
724 prefix = "b";
725
726 if (soc_type == QCA_QCA2066)
727 prefix = "";
728
729 if (soc_type == QCA_WCN6855 || soc_type == QCA_QCA2066) {
730 /* If the chip is manufactured by GlobalFoundries */
731 if ((le32_to_cpu(ver.soc_id) & QCA_HSP_GF_SOC_MASK) == QCA_HSP_GF_SOC_ID)
732 variant = "g";
733 }
734
735 if (rom_ver != 0) {
736 if (bid == 0x0 || bid == 0xffff)
737 snprintf(fwname, max_size, "qca/%s%02x%s.bin", stem, rom_ver, variant);
738 else
739 snprintf(fwname, max_size, "qca/%s%02x%s.%s%02x", stem, rom_ver,
740 variant, prefix, bid);
741 } else {
742 if (bid == 0x0 || bid == 0xffff)
743 snprintf(fwname, max_size, "qca/%s%s.bin", stem, variant);
744 else
745 snprintf(fwname, max_size, "qca/%s%s.%s%02x", stem, variant, prefix, bid);
746 }
747}
748
749int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
750 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
751 const char *firmware_name, const char *rampatch_name)
752{
753 struct qca_fw_config config = {};
754 const char *variant = "";
755 int err;
756 u8 rom_ver = 0;
757 u32 soc_ver;
758 u16 boardid = 0;
759
760 bt_dev_dbg(hdev, "QCA setup on UART");
761
762 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
763
764 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
765
766 config.user_baud_rate = baudrate;
767
768 /* Firmware files to download are based on ROM version.
769 * ROM version is derived from last two bytes of soc_ver.
770 */
771 if (soc_type == QCA_WCN3988)
772 rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f);
773 else if (soc_type == QCA_WCN3998)
774 rom_ver = ((soc_ver & 0x0000f000) >> 0x07) | (soc_ver & 0x0000000f);
775 else
776 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
777
778 if (soc_type == QCA_WCN6750)
779 qca_send_patch_config_cmd(hdev);
780
781 /* Download rampatch file */
782 config.type = TLV_TYPE_PATCH;
783 if (rampatch_name) {
784 snprintf(config.fwname, sizeof(config.fwname), "qca/%s", rampatch_name);
785 } else {
786 switch (soc_type) {
787 case QCA_QCA2066:
788 snprintf(config.fwname, sizeof(config.fwname),
789 "qca/hpbtfw%02x.tlv", rom_ver);
790 break;
791 case QCA_QCA6390:
792 snprintf(config.fwname, sizeof(config.fwname),
793 "qca/htbtfw%02x.tlv", rom_ver);
794 break;
795 case QCA_WCN3950:
796 snprintf(config.fwname, sizeof(config.fwname),
797 "qca/cmbtfw%02x.tlv", rom_ver);
798 break;
799 case QCA_WCN3990:
800 case QCA_WCN3991:
801 case QCA_WCN3998:
802 snprintf(config.fwname, sizeof(config.fwname),
803 "qca/crbtfw%02x.tlv", rom_ver);
804 break;
805 case QCA_WCN3988:
806 snprintf(config.fwname, sizeof(config.fwname),
807 "qca/apbtfw%02x.tlv", rom_ver);
808 break;
809 case QCA_WCN6750:
810 /* Choose mbn file by default.If mbn file is not found
811 * then choose tlv file
812 */
813 config.type = ELF_TYPE_PATCH;
814 snprintf(config.fwname, sizeof(config.fwname),
815 "qca/msbtfw%02x.mbn", rom_ver);
816 break;
817 case QCA_WCN6855:
818 /* Due to historical reasons, WCN685x chip has been using firmware
819 * without the "wcn" prefix. The mapping between the chip and its
820 * corresponding firmware has now been corrected.
821 */
822 snprintf(config.fwname, sizeof(config.fwname),
823 "qca/wcnhpbtfw%02x.tlv", rom_ver);
824 break;
825 case QCA_WCN7850:
826 snprintf(config.fwname, sizeof(config.fwname),
827 "qca/hmtbtfw%02x.tlv", rom_ver);
828 break;
829 default:
830 snprintf(config.fwname, sizeof(config.fwname),
831 "qca/rampatch_%08x.bin", soc_ver);
832 }
833 }
834
835 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
836 /* For WCN6750, if mbn file is not present then check for
837 * tlv file.
838 */
839 if (err < 0 && soc_type == QCA_WCN6750) {
840 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)",
841 config.fwname, err);
842 config.type = TLV_TYPE_PATCH;
843 snprintf(config.fwname, sizeof(config.fwname),
844 "qca/msbtfw%02x.tlv", rom_ver);
845 bt_dev_info(hdev, "QCA Downloading %s", config.fwname);
846 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
847 } else if (err < 0 && !rampatch_name && soc_type == QCA_WCN6855) {
848 snprintf(config.fwname, sizeof(config.fwname),
849 "qca/hpbtfw%02x.tlv", rom_ver);
850 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
851 }
852
853 if (err < 0) {
854 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
855 config.fwname, err);
856 return err;
857 }
858
859 /* Give the controller some time to get ready to receive the NVM */
860 msleep(10);
861
862 if (soc_type == QCA_QCA2066 || soc_type == QCA_WCN7850)
863 qca_read_fw_board_id(hdev, &boardid);
864
865 /* Download NVM configuration */
866 config.type = TLV_TYPE_NVM;
867 if (firmware_name) {
868 /* The firmware name has an extension, use it directly */
869 if (qca_filename_has_extension(firmware_name)) {
870 snprintf(config.fwname, sizeof(config.fwname), "qca/%s", firmware_name);
871 } else {
872 qca_read_fw_board_id(hdev, &boardid);
873 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
874 firmware_name, soc_type, ver, 0, boardid);
875 }
876 } else {
877 switch (soc_type) {
878 case QCA_QCA2066:
879 qca_get_nvm_name_by_board(config.fwname,
880 sizeof(config.fwname),
881 "hpnv", soc_type, ver,
882 rom_ver, boardid);
883 break;
884 case QCA_QCA6390:
885 snprintf(config.fwname, sizeof(config.fwname),
886 "qca/htnv%02x.bin", rom_ver);
887 break;
888 case QCA_WCN3950:
889 if (le32_to_cpu(ver.soc_id) == QCA_WCN3950_SOC_ID_T)
890 variant = "t";
891 else if (le32_to_cpu(ver.soc_id) == QCA_WCN3950_SOC_ID_S)
892 variant = "s";
893
894 snprintf(config.fwname, sizeof(config.fwname),
895 "qca/cmnv%02x%s.bin", rom_ver, variant);
896 break;
897 case QCA_WCN3990:
898 case QCA_WCN3991:
899 case QCA_WCN3998:
900 if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID)
901 variant = "u";
902
903 snprintf(config.fwname, sizeof(config.fwname),
904 "qca/crnv%02x%s.bin", rom_ver, variant);
905 break;
906 case QCA_WCN3988:
907 snprintf(config.fwname, sizeof(config.fwname),
908 "qca/apnv%02x.bin", rom_ver);
909 break;
910 case QCA_WCN6750:
911 snprintf(config.fwname, sizeof(config.fwname),
912 "qca/msnv%02x.bin", rom_ver);
913 break;
914 case QCA_WCN6855:
915 qca_read_fw_board_id(hdev, &boardid);
916 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
917 "wcnhpnv", soc_type, ver, rom_ver, boardid);
918 break;
919 case QCA_WCN7850:
920 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
921 "hmtnv", soc_type, ver, rom_ver, boardid);
922 break;
923 default:
924 snprintf(config.fwname, sizeof(config.fwname),
925 "qca/nvm_%08x.bin", soc_ver);
926 }
927 }
928
929 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
930 if (err < 0 && !firmware_name && soc_type == QCA_WCN6855) {
931 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
932 "hpnv", soc_type, ver, rom_ver, boardid);
933 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
934 }
935
936 if (err < 0) {
937 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
938 config.fwname, err);
939 return err;
940 }
941
942 switch (soc_type) {
943 case QCA_QCA2066:
944 case QCA_QCA6390:
945 case QCA_WCN3991:
946 case QCA_WCN6750:
947 case QCA_WCN6855:
948 case QCA_WCN7850:
949 err = qca_disable_soc_logging(hdev);
950 if (err < 0)
951 return err;
952 break;
953 default:
954 break;
955 }
956
957 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the
958 * VsMsftOpCode.
959 */
960 switch (soc_type) {
961 case QCA_WCN3950:
962 case QCA_WCN3988:
963 case QCA_WCN3990:
964 case QCA_WCN3991:
965 case QCA_WCN3998:
966 case QCA_WCN6750:
967 hci_set_msft_opcode(hdev, 0xFD70);
968 break;
969 default:
970 break;
971 }
972
973 /* Perform HCI reset */
974 err = __hci_reset_sync(hdev);
975 if (err < 0) {
976 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
977 return err;
978 }
979 bt_dev_dbg(hdev, "QCA HCI_RESET succeed");
980
981 switch (soc_type) {
982 case QCA_WCN3991:
983 case QCA_WCN6750:
984 case QCA_WCN6855:
985 case QCA_WCN7850:
986 /* get fw build info */
987 err = qca_read_fw_build_info(hdev);
988 if (err < 0)
989 return err;
990 break;
991 default:
992 break;
993 }
994
995 err = qca_check_bdaddr(hdev, &config);
996 if (err)
997 return err;
998
999 bt_dev_info(hdev, "QCA setup on UART is completed");
1000
1001 return 0;
1002}
1003EXPORT_SYMBOL_GPL(qca_uart_setup);
1004
1005int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1006{
1007 bdaddr_t bdaddr_swapped;
1008 struct sk_buff *skb;
1009 int err;
1010
1011 baswap(&bdaddr_swapped, bdaddr);
1012
1013 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6,
1014 &bdaddr_swapped, 0, HCI_INIT_TIMEOUT);
1015 if (IS_ERR(skb)) {
1016 err = PTR_ERR(skb);
1017 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
1018 return err;
1019 }
1020
1021 kfree_skb(skb);
1022
1023 return 0;
1024}
1025EXPORT_SYMBOL_GPL(qca_set_bdaddr);
1026
1027
1028MODULE_AUTHOR("Ben Young Tae Kim <[email protected]>");
1029MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family");
1030MODULE_LICENSE("GPL");