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
qca_read_soc_version(struct hci_dev * hdev,struct qca_btsoc_version * ver,enum qca_btsoc_type soc_type)16 int 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
82 out:
83 kfree_skb(skb);
84 if (err)
85 bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
86
87 return err;
88 }
89 EXPORT_SYMBOL_GPL(qca_read_soc_version);
90
qca_read_fw_build_info(struct hci_dev * hdev)91 static 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 kfree(build_label);
147 out:
148 kfree_skb(skb);
149 return err;
150 }
151
qca_send_patch_config_cmd(struct hci_dev * hdev)152 static int qca_send_patch_config_cmd(struct hci_dev *hdev)
153 {
154 const u8 cmd[] = { EDL_PATCH_CONFIG_CMD, 0x01, 0, 0, 0 };
155 struct sk_buff *skb;
156 struct edl_event_hdr *edl;
157 int err;
158
159 bt_dev_dbg(hdev, "QCA Patch config");
160
161 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, sizeof(cmd),
162 cmd, 0, HCI_INIT_TIMEOUT);
163 if (IS_ERR(skb)) {
164 err = PTR_ERR(skb);
165 bt_dev_err(hdev, "Sending QCA Patch config failed (%d)", err);
166 return err;
167 }
168
169 if (skb->len != 2) {
170 bt_dev_err(hdev, "QCA Patch config cmd size mismatch len %d", skb->len);
171 err = -EILSEQ;
172 goto out;
173 }
174
175 edl = (struct edl_event_hdr *)(skb->data);
176
177 if (edl->cresp != EDL_PATCH_CONFIG_RES_EVT || edl->rtype != EDL_PATCH_CONFIG_CMD) {
178 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
179 edl->rtype);
180 err = -EIO;
181 goto out;
182 }
183
184 err = 0;
185
186 out:
187 kfree_skb(skb);
188 return err;
189 }
190
qca_send_reset(struct hci_dev * hdev)191 static int qca_send_reset(struct hci_dev *hdev)
192 {
193 struct sk_buff *skb;
194 int err;
195
196 bt_dev_dbg(hdev, "QCA HCI_RESET");
197
198 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
199 if (IS_ERR(skb)) {
200 err = PTR_ERR(skb);
201 bt_dev_err(hdev, "QCA Reset failed (%d)", err);
202 return err;
203 }
204
205 kfree_skb(skb);
206
207 return 0;
208 }
209
qca_read_fw_board_id(struct hci_dev * hdev,u16 * bid)210 static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid)
211 {
212 u8 cmd;
213 struct sk_buff *skb;
214 struct edl_event_hdr *edl;
215 int err = 0;
216
217 cmd = EDL_GET_BID_REQ_CMD;
218 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
219 &cmd, 0, HCI_INIT_TIMEOUT);
220 if (IS_ERR(skb)) {
221 err = PTR_ERR(skb);
222 bt_dev_err(hdev, "Reading QCA board ID failed (%d)", err);
223 return err;
224 }
225
226 edl = skb_pull_data(skb, sizeof(*edl));
227 if (!edl) {
228 bt_dev_err(hdev, "QCA read board ID with no header");
229 err = -EILSEQ;
230 goto out;
231 }
232
233 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
234 edl->rtype != EDL_GET_BID_REQ_CMD) {
235 bt_dev_err(hdev, "QCA Wrong packet: %d %d", edl->cresp, edl->rtype);
236 err = -EIO;
237 goto out;
238 }
239
240 if (skb->len < 3) {
241 err = -EILSEQ;
242 goto out;
243 }
244
245 *bid = (edl->data[1] << 8) + edl->data[2];
246 bt_dev_dbg(hdev, "%s: bid = %x", __func__, *bid);
247
248 out:
249 kfree_skb(skb);
250 return err;
251 }
252
qca_send_pre_shutdown_cmd(struct hci_dev * hdev)253 int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
254 {
255 struct sk_buff *skb;
256 int err;
257
258 bt_dev_dbg(hdev, "QCA pre shutdown cmd");
259
260 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
261 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
262
263 if (IS_ERR(skb)) {
264 err = PTR_ERR(skb);
265 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
266 return err;
267 }
268
269 kfree_skb(skb);
270
271 return 0;
272 }
273 EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
274
qca_filename_has_extension(const char * filename)275 static bool qca_filename_has_extension(const char *filename)
276 {
277 const char *suffix = strrchr(filename, '.');
278
279 /* File extensions require a dot, but not as the first or last character */
280 if (!suffix || suffix == filename || *(suffix + 1) == '\0')
281 return 0;
282
283 /* Avoid matching directories with names that look like files with extensions */
284 return !strchr(suffix, '/');
285 }
286
qca_get_alt_nvm_file(char * filename,size_t max_size)287 static bool qca_get_alt_nvm_file(char *filename, size_t max_size)
288 {
289 char fwname[64];
290 const char *suffix;
291
292 /* nvm file name has an extension, replace with .bin */
293 if (qca_filename_has_extension(filename)) {
294 suffix = strrchr(filename, '.');
295 strscpy(fwname, filename, suffix - filename + 1);
296 snprintf(fwname + (suffix - filename),
297 sizeof(fwname) - (suffix - filename), ".bin");
298 /* If nvm file is already the default one, return false to skip the retry. */
299 if (strcmp(fwname, filename) == 0)
300 return false;
301
302 snprintf(filename, max_size, "%s", fwname);
303 return true;
304 }
305 return false;
306 }
307
qca_tlv_check_data(struct hci_dev * hdev,struct qca_fw_config * config,u8 * fw_data,size_t fw_size,enum qca_btsoc_type soc_type)308 static int qca_tlv_check_data(struct hci_dev *hdev,
309 struct qca_fw_config *config,
310 u8 *fw_data, size_t fw_size,
311 enum qca_btsoc_type soc_type)
312 {
313 const u8 *data;
314 u32 type_len;
315 u16 tag_id, tag_len;
316 int idx, length;
317 struct tlv_type_hdr *tlv;
318 struct tlv_type_patch *tlv_patch;
319 struct tlv_type_nvm *tlv_nvm;
320 uint8_t nvm_baud_rate = config->user_baud_rate;
321 u8 type;
322
323 config->dnld_mode = QCA_SKIP_EVT_NONE;
324 config->dnld_type = QCA_SKIP_EVT_NONE;
325
326 switch (config->type) {
327 case ELF_TYPE_PATCH:
328 if (fw_size < 7)
329 return -EINVAL;
330
331 config->dnld_mode = QCA_SKIP_EVT_VSE_CC;
332 config->dnld_type = QCA_SKIP_EVT_VSE_CC;
333
334 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]);
335 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]);
336 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]);
337 break;
338 case TLV_TYPE_PATCH:
339 if (fw_size < sizeof(struct tlv_type_hdr) + sizeof(struct tlv_type_patch))
340 return -EINVAL;
341
342 tlv = (struct tlv_type_hdr *)fw_data;
343 type_len = le32_to_cpu(tlv->type_len);
344 tlv_patch = (struct tlv_type_patch *)tlv->data;
345
346 /* For Rome version 1.1 to 3.1, all segment commands
347 * are acked by a vendor specific event (VSE).
348 * For Rome >= 3.2, the download mode field indicates
349 * if VSE is skipped by the controller.
350 * In case VSE is skipped, only the last segment is acked.
351 */
352 config->dnld_mode = tlv_patch->download_mode;
353 config->dnld_type = config->dnld_mode;
354
355 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
356 BT_DBG("Total Length : %d bytes",
357 le32_to_cpu(tlv_patch->total_size));
358 BT_DBG("Patch Data Length : %d bytes",
359 le32_to_cpu(tlv_patch->data_length));
360 BT_DBG("Signing Format Version : 0x%x",
361 tlv_patch->format_version);
362 BT_DBG("Signature Algorithm : 0x%x",
363 tlv_patch->signature);
364 BT_DBG("Download mode : 0x%x",
365 tlv_patch->download_mode);
366 BT_DBG("Reserved : 0x%x",
367 tlv_patch->reserved1);
368 BT_DBG("Product ID : 0x%04x",
369 le16_to_cpu(tlv_patch->product_id));
370 BT_DBG("Rom Build Version : 0x%04x",
371 le16_to_cpu(tlv_patch->rom_build));
372 BT_DBG("Patch Version : 0x%04x",
373 le16_to_cpu(tlv_patch->patch_version));
374 BT_DBG("Reserved : 0x%x",
375 le16_to_cpu(tlv_patch->reserved2));
376 BT_DBG("Patch Entry Address : 0x%x",
377 le32_to_cpu(tlv_patch->entry));
378 break;
379
380 case TLV_TYPE_NVM:
381 if (fw_size < sizeof(struct tlv_type_hdr))
382 return -EINVAL;
383
384 tlv = (struct tlv_type_hdr *)fw_data;
385
386 type_len = le32_to_cpu(tlv->type_len);
387 length = type_len >> 8;
388 type = type_len & 0xff;
389
390 /* Some NVM files have more than one set of tags, only parse
391 * the first set when it has type 2 for now. When there is
392 * more than one set there is an enclosing header of type 4.
393 */
394 if (type == 4) {
395 if (fw_size < 2 * sizeof(struct tlv_type_hdr))
396 return -EINVAL;
397
398 tlv++;
399
400 type_len = le32_to_cpu(tlv->type_len);
401 length = type_len >> 8;
402 type = type_len & 0xff;
403 }
404
405 BT_DBG("TLV Type\t\t : 0x%x", type);
406 BT_DBG("Length\t\t : %d bytes", length);
407
408 if (type != 2)
409 break;
410
411 if (fw_size < length + (tlv->data - fw_data))
412 return -EINVAL;
413
414 idx = 0;
415 data = tlv->data;
416 while (idx < length - sizeof(struct tlv_type_nvm)) {
417 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
418
419 tag_id = le16_to_cpu(tlv_nvm->tag_id);
420 tag_len = le16_to_cpu(tlv_nvm->tag_len);
421
422 if (length < idx + sizeof(struct tlv_type_nvm) + tag_len)
423 return -EINVAL;
424
425 /* Update NVM tags as needed */
426 switch (tag_id) {
427 case EDL_TAG_ID_BD_ADDR:
428 if (tag_len != sizeof(bdaddr_t))
429 return -EINVAL;
430
431 memcpy(&config->bdaddr, tlv_nvm->data, sizeof(bdaddr_t));
432
433 break;
434
435 case EDL_TAG_ID_HCI:
436 if (tag_len < 3)
437 return -EINVAL;
438
439 /* HCI transport layer parameters
440 * enabling software inband sleep
441 * onto controller side.
442 */
443 tlv_nvm->data[0] |= 0x80;
444
445 /* UART Baud Rate */
446 if (soc_type >= QCA_WCN3991)
447 tlv_nvm->data[1] = nvm_baud_rate;
448 else
449 tlv_nvm->data[2] = nvm_baud_rate;
450
451 break;
452
453 case EDL_TAG_ID_DEEP_SLEEP:
454 if (tag_len < 1)
455 return -EINVAL;
456
457 /* Sleep enable mask
458 * enabling deep sleep feature on controller.
459 */
460 tlv_nvm->data[0] |= 0x01;
461
462 break;
463 }
464
465 idx += sizeof(struct tlv_type_nvm) + tag_len;
466 }
467 break;
468
469 default:
470 BT_ERR("Unknown TLV type %d", config->type);
471 return -EINVAL;
472 }
473
474 return 0;
475 }
476
qca_tlv_send_segment(struct hci_dev * hdev,int seg_size,const u8 * data,enum qca_tlv_dnld_mode mode,enum qca_btsoc_type soc_type)477 static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
478 const u8 *data, enum qca_tlv_dnld_mode mode,
479 enum qca_btsoc_type soc_type)
480 {
481 struct sk_buff *skb;
482 struct edl_event_hdr *edl;
483 struct tlv_seg_resp *tlv_resp;
484 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
485 int err = 0;
486 u8 event_type = HCI_EV_VENDOR;
487 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));
488 u8 rtype = EDL_TVL_DNLD_RES_EVT;
489
490 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
491 cmd[1] = seg_size;
492 memcpy(cmd + 2, data, seg_size);
493
494 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE)
495 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
496 cmd);
497
498 /* Unlike other SoC's sending version command response as payload to
499 * VSE event. WCN3991 sends version command response as a payload to
500 * command complete event.
501 */
502 if (soc_type >= QCA_WCN3991) {
503 event_type = 0;
504 rlen = sizeof(*edl);
505 rtype = EDL_PATCH_TLV_REQ_CMD;
506 }
507
508 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
509 event_type, HCI_INIT_TIMEOUT);
510 if (IS_ERR(skb)) {
511 err = PTR_ERR(skb);
512 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
513 return err;
514 }
515
516 if (skb->len != rlen) {
517 bt_dev_err(hdev, "QCA TLV response size mismatch");
518 err = -EILSEQ;
519 goto out;
520 }
521
522 edl = (struct edl_event_hdr *)(skb->data);
523
524 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {
525 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",
526 edl->cresp, edl->rtype);
527 err = -EIO;
528 }
529
530 if (soc_type >= QCA_WCN3991)
531 goto out;
532
533 tlv_resp = (struct tlv_seg_resp *)(edl->data);
534 if (tlv_resp->result) {
535 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
536 edl->cresp, edl->rtype, tlv_resp->result);
537 }
538
539 out:
540 kfree_skb(skb);
541
542 return err;
543 }
544
qca_inject_cmd_complete_event(struct hci_dev * hdev)545 static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
546 {
547 struct hci_event_hdr *hdr;
548 struct hci_ev_cmd_complete *evt;
549 struct sk_buff *skb;
550
551 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
552 if (!skb)
553 return -ENOMEM;
554
555 hdr = skb_put(skb, sizeof(*hdr));
556 hdr->evt = HCI_EV_CMD_COMPLETE;
557 hdr->plen = sizeof(*evt) + 1;
558
559 evt = skb_put(skb, sizeof(*evt));
560 evt->ncmd = 1;
561 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
562
563 skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
564
565 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
566
567 return hci_recv_frame(hdev, skb);
568 }
569
qca_download_firmware(struct hci_dev * hdev,struct qca_fw_config * config,enum qca_btsoc_type soc_type,u8 rom_ver)570 static int qca_download_firmware(struct hci_dev *hdev,
571 struct qca_fw_config *config,
572 enum qca_btsoc_type soc_type,
573 u8 rom_ver)
574 {
575 const struct firmware *fw;
576 u8 *data;
577 const u8 *segment;
578 int ret, size, remain, i = 0;
579
580 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
581
582 ret = request_firmware(&fw, config->fwname, &hdev->dev);
583 if (ret) {
584 /* For WCN6750, if mbn file is not present then check for
585 * tlv file.
586 */
587 if (soc_type == QCA_WCN6750 && config->type == ELF_TYPE_PATCH) {
588 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)",
589 config->fwname, ret);
590 config->type = TLV_TYPE_PATCH;
591 snprintf(config->fwname, sizeof(config->fwname),
592 "qca/msbtfw%02x.tlv", rom_ver);
593 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
594 ret = request_firmware(&fw, config->fwname, &hdev->dev);
595 if (ret) {
596 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
597 config->fwname, ret);
598 return ret;
599 }
600 }
601 /* If the board-specific file is missing, try loading the default
602 * one, unless that was attempted already.
603 */
604 else if (config->type == TLV_TYPE_NVM &&
605 qca_get_alt_nvm_file(config->fwname, sizeof(config->fwname))) {
606 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
607 ret = request_firmware(&fw, config->fwname, &hdev->dev);
608 if (ret) {
609 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
610 config->fwname, ret);
611 return ret;
612 }
613 } else {
614 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
615 config->fwname, ret);
616 return ret;
617 }
618 }
619
620 size = fw->size;
621 data = vmalloc(fw->size);
622 if (!data) {
623 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s",
624 config->fwname);
625 release_firmware(fw);
626 return -ENOMEM;
627 }
628
629 memcpy(data, fw->data, size);
630 release_firmware(fw);
631
632 ret = qca_tlv_check_data(hdev, config, data, size, soc_type);
633 if (ret)
634 goto out;
635
636 segment = data;
637 remain = size;
638 while (remain > 0) {
639 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
640
641 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
642
643 remain -= segsize;
644 /* The last segment is always acked regardless download mode */
645 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
646 config->dnld_mode = QCA_SKIP_EVT_NONE;
647
648 ret = qca_tlv_send_segment(hdev, segsize, segment,
649 config->dnld_mode, soc_type);
650 if (ret)
651 goto out;
652
653 segment += segsize;
654 }
655
656 /* Latest qualcomm chipsets are not sending a command complete event
657 * for every fw packet sent. They only respond with a vendor specific
658 * event for the last packet. This optimization in the chip will
659 * decrease the BT in initialization time. Here we will inject a command
660 * complete event to avoid a command timeout error message.
661 */
662 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC ||
663 config->dnld_type == QCA_SKIP_EVT_VSE)
664 ret = qca_inject_cmd_complete_event(hdev);
665
666 out:
667 vfree(data);
668
669 return ret;
670 }
671
qca_disable_soc_logging(struct hci_dev * hdev)672 static int qca_disable_soc_logging(struct hci_dev *hdev)
673 {
674 struct sk_buff *skb;
675 u8 cmd[2];
676 int err;
677
678 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP;
679 cmd[1] = 0x00;
680 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd,
681 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
682 if (IS_ERR(skb)) {
683 err = PTR_ERR(skb);
684 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err);
685 return err;
686 }
687
688 kfree_skb(skb);
689
690 return 0;
691 }
692
qca_set_bdaddr_rome(struct hci_dev * hdev,const bdaddr_t * bdaddr)693 int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
694 {
695 struct sk_buff *skb;
696 u8 cmd[9];
697 int err;
698
699 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
700 cmd[1] = 0x02; /* TAG ID */
701 cmd[2] = sizeof(bdaddr_t); /* size */
702 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
703 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
704 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
705 if (IS_ERR(skb)) {
706 err = PTR_ERR(skb);
707 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
708 return err;
709 }
710
711 kfree_skb(skb);
712
713 return 0;
714 }
715 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
716
qca_check_bdaddr(struct hci_dev * hdev,const struct qca_fw_config * config)717 static int qca_check_bdaddr(struct hci_dev *hdev, const struct qca_fw_config *config)
718 {
719 struct hci_rp_read_bd_addr *bda;
720 struct sk_buff *skb;
721 int err;
722
723 if (bacmp(&hdev->public_addr, BDADDR_ANY))
724 return 0;
725
726 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
727 HCI_INIT_TIMEOUT);
728 if (IS_ERR(skb)) {
729 err = PTR_ERR(skb);
730 bt_dev_err(hdev, "Failed to read device address (%d)", err);
731 return err;
732 }
733
734 if (skb->len != sizeof(*bda)) {
735 bt_dev_err(hdev, "Device address length mismatch");
736 kfree_skb(skb);
737 return -EIO;
738 }
739
740 bda = (struct hci_rp_read_bd_addr *)skb->data;
741 if (!bacmp(&bda->bdaddr, &config->bdaddr))
742 set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
743
744 kfree_skb(skb);
745
746 return 0;
747 }
748
qca_get_nvm_name_by_board(char * fwname,size_t max_size,const char * stem,enum qca_btsoc_type soc_type,struct qca_btsoc_version ver,u8 rom_ver,u16 bid)749 static void qca_get_nvm_name_by_board(char *fwname, size_t max_size,
750 const char *stem, enum qca_btsoc_type soc_type,
751 struct qca_btsoc_version ver, u8 rom_ver, u16 bid)
752 {
753 const char *variant;
754 const char *prefix;
755
756 /* Set the default value to variant and prefix */
757 variant = "";
758 prefix = "b";
759
760 if (soc_type == QCA_QCA2066)
761 prefix = "";
762
763 if (soc_type == QCA_WCN6855 || soc_type == QCA_QCA2066) {
764 /* If the chip is manufactured by GlobalFoundries */
765 if ((le32_to_cpu(ver.soc_id) & QCA_HSP_GF_SOC_MASK) == QCA_HSP_GF_SOC_ID)
766 variant = "g";
767 }
768
769 if (rom_ver != 0) {
770 if (bid == 0x0 || bid == 0xffff)
771 snprintf(fwname, max_size, "qca/%s%02x%s.bin", stem, rom_ver, variant);
772 else
773 snprintf(fwname, max_size, "qca/%s%02x%s.%s%02x", stem, rom_ver,
774 variant, prefix, bid);
775 } else {
776 if (bid == 0x0 || bid == 0xffff)
777 snprintf(fwname, max_size, "qca/%s%s.bin", stem, variant);
778 else
779 snprintf(fwname, max_size, "qca/%s%s.%s%02x", stem, variant, prefix, bid);
780 }
781 }
782
qca_uart_setup(struct hci_dev * hdev,uint8_t baudrate,enum qca_btsoc_type soc_type,struct qca_btsoc_version ver,const char * firmware_name,const char * rampatch_name)783 int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
784 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
785 const char *firmware_name, const char *rampatch_name)
786 {
787 struct qca_fw_config config = {};
788 const char *variant = "";
789 int err;
790 u8 rom_ver = 0;
791 u32 soc_ver;
792 u16 boardid = 0;
793
794 bt_dev_dbg(hdev, "QCA setup on UART");
795
796 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
797
798 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
799
800 config.user_baud_rate = baudrate;
801
802 /* Firmware files to download are based on ROM version.
803 * ROM version is derived from last two bytes of soc_ver.
804 */
805 if (soc_type == QCA_WCN3988)
806 rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f);
807 else
808 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
809
810 if (soc_type == QCA_WCN6750)
811 qca_send_patch_config_cmd(hdev);
812
813 /* Download rampatch file */
814 config.type = TLV_TYPE_PATCH;
815 if (rampatch_name) {
816 snprintf(config.fwname, sizeof(config.fwname), "qca/%s", rampatch_name);
817 } else {
818 switch (soc_type) {
819 case QCA_WCN3950:
820 snprintf(config.fwname, sizeof(config.fwname),
821 "qca/cmbtfw%02x.tlv", rom_ver);
822 break;
823 case QCA_WCN3990:
824 case QCA_WCN3991:
825 case QCA_WCN3998:
826 snprintf(config.fwname, sizeof(config.fwname),
827 "qca/crbtfw%02x.tlv", rom_ver);
828 break;
829 case QCA_WCN3988:
830 snprintf(config.fwname, sizeof(config.fwname),
831 "qca/apbtfw%02x.tlv", rom_ver);
832 break;
833 case QCA_QCA2066:
834 snprintf(config.fwname, sizeof(config.fwname),
835 "qca/hpbtfw%02x.tlv", rom_ver);
836 break;
837 case QCA_QCA6390:
838 snprintf(config.fwname, sizeof(config.fwname),
839 "qca/htbtfw%02x.tlv", rom_ver);
840 break;
841 case QCA_WCN6750:
842 /* Choose mbn file by default.If mbn file is not found
843 * then choose tlv file
844 */
845 config.type = ELF_TYPE_PATCH;
846 snprintf(config.fwname, sizeof(config.fwname),
847 "qca/msbtfw%02x.mbn", rom_ver);
848 break;
849 case QCA_WCN6855:
850 snprintf(config.fwname, sizeof(config.fwname),
851 "qca/hpbtfw%02x.tlv", rom_ver);
852 break;
853 case QCA_WCN7850:
854 snprintf(config.fwname, sizeof(config.fwname),
855 "qca/hmtbtfw%02x.tlv", rom_ver);
856 break;
857 default:
858 snprintf(config.fwname, sizeof(config.fwname),
859 "qca/rampatch_%08x.bin", soc_ver);
860 }
861 }
862
863 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
864 if (err < 0) {
865 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
866 return err;
867 }
868
869 /* Give the controller some time to get ready to receive the NVM */
870 msleep(10);
871
872 if (soc_type == QCA_QCA2066 || soc_type == QCA_WCN7850)
873 qca_read_fw_board_id(hdev, &boardid);
874
875 /* Download NVM configuration */
876 config.type = TLV_TYPE_NVM;
877 if (firmware_name) {
878 /* The firmware name has an extension, use it directly */
879 if (qca_filename_has_extension(firmware_name)) {
880 snprintf(config.fwname, sizeof(config.fwname), "qca/%s", firmware_name);
881 } else {
882 qca_read_fw_board_id(hdev, &boardid);
883 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
884 firmware_name, soc_type, ver, 0, boardid);
885 }
886 } else {
887 switch (soc_type) {
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 = "u";
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_QCA2066:
911 qca_get_nvm_name_by_board(config.fwname,
912 sizeof(config.fwname), "hpnv", soc_type, ver,
913 rom_ver, boardid);
914 break;
915 case QCA_QCA6390:
916 snprintf(config.fwname, sizeof(config.fwname),
917 "qca/htnv%02x.bin", rom_ver);
918 break;
919 case QCA_WCN6750:
920 snprintf(config.fwname, sizeof(config.fwname),
921 "qca/msnv%02x.bin", rom_ver);
922 break;
923 case QCA_WCN6855:
924 qca_read_fw_board_id(hdev, &boardid);
925 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
926 "hpnv", soc_type, ver, rom_ver, boardid);
927 break;
928 case QCA_WCN7850:
929 qca_get_nvm_name_by_board(config.fwname, sizeof(config.fwname),
930 "hmtnv", soc_type, ver, rom_ver, boardid);
931 break;
932 default:
933 snprintf(config.fwname, sizeof(config.fwname),
934 "qca/nvm_%08x.bin", soc_ver);
935 }
936 }
937
938 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
939 if (err < 0) {
940 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
941 return err;
942 }
943
944 switch (soc_type) {
945 case QCA_WCN3991:
946 case QCA_QCA2066:
947 case QCA_QCA6390:
948 case QCA_WCN6750:
949 case QCA_WCN6855:
950 case QCA_WCN7850:
951 err = qca_disable_soc_logging(hdev);
952 if (err < 0)
953 return err;
954 break;
955 default:
956 break;
957 }
958
959 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the
960 * VsMsftOpCode.
961 */
962 switch (soc_type) {
963 case QCA_WCN3950:
964 case QCA_WCN3988:
965 case QCA_WCN3990:
966 case QCA_WCN3991:
967 case QCA_WCN3998:
968 case QCA_WCN6750:
969 hci_set_msft_opcode(hdev, 0xFD70);
970 break;
971 default:
972 break;
973 }
974
975 /* Perform HCI reset */
976 err = qca_send_reset(hdev);
977 if (err < 0) {
978 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
979 return err;
980 }
981
982 switch (soc_type) {
983 case QCA_WCN3991:
984 case QCA_WCN6750:
985 case QCA_WCN6855:
986 case QCA_WCN7850:
987 /* get fw build info */
988 err = qca_read_fw_build_info(hdev);
989 if (err < 0)
990 return err;
991 break;
992 default:
993 break;
994 }
995
996 err = qca_check_bdaddr(hdev, &config);
997 if (err)
998 return err;
999
1000 bt_dev_info(hdev, "QCA setup on UART is completed");
1001
1002 return 0;
1003 }
1004 EXPORT_SYMBOL_GPL(qca_uart_setup);
1005
qca_set_bdaddr(struct hci_dev * hdev,const bdaddr_t * bdaddr)1006 int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
1007 {
1008 bdaddr_t bdaddr_swapped;
1009 struct sk_buff *skb;
1010 int err;
1011
1012 baswap(&bdaddr_swapped, bdaddr);
1013
1014 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6,
1015 &bdaddr_swapped, HCI_EV_VENDOR,
1016 HCI_INIT_TIMEOUT);
1017 if (IS_ERR(skb)) {
1018 err = PTR_ERR(skb);
1019 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
1020 return err;
1021 }
1022
1023 kfree_skb(skb);
1024
1025 return 0;
1026 }
1027 EXPORT_SYMBOL_GPL(qca_set_bdaddr);
1028
1029
1030 MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
1031 MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family");
1032 MODULE_LICENSE("GPL");
1033