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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
16#define VERSION "0.1"
17
18int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver,
19 enum qca_btsoc_type soc_type)
20{
21 struct sk_buff *skb;
22 struct edl_event_hdr *edl;
23 char cmd;
24 int err = 0;
25 u8 event_type = HCI_EV_VENDOR;
26 u8 rlen = sizeof(*edl) + sizeof(*ver);
27 u8 rtype = EDL_APP_VER_RES_EVT;
28
29 bt_dev_dbg(hdev, "QCA Version Request");
30
31 /* Unlike other SoC's sending version command response as payload to
32 * VSE event. WCN3991 sends version command response as a payload to
33 * command complete event.
34 */
35 if (soc_type >= QCA_WCN3991) {
36 event_type = 0;
37 rlen += 1;
38 rtype = EDL_PATCH_VER_REQ_CMD;
39 }
40
41 cmd = EDL_PATCH_VER_REQ_CMD;
42 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
43 &cmd, event_type, HCI_INIT_TIMEOUT);
44 if (IS_ERR(skb)) {
45 err = PTR_ERR(skb);
46 bt_dev_err(hdev, "Reading QCA version information failed (%d)",
47 err);
48 return err;
49 }
50
51 if (skb->len != rlen) {
52 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
53 err = -EILSEQ;
54 goto out;
55 }
56
57 edl = (struct edl_event_hdr *)(skb->data);
58 if (!edl) {
59 bt_dev_err(hdev, "QCA TLV with no header");
60 err = -EILSEQ;
61 goto out;
62 }
63
64 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
65 edl->rtype != rtype) {
66 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
67 edl->rtype);
68 err = -EIO;
69 goto out;
70 }
71
72 if (soc_type >= QCA_WCN3991)
73 memcpy(ver, edl->data + 1, sizeof(*ver));
74 else
75 memcpy(ver, &edl->data, sizeof(*ver));
76
77 bt_dev_info(hdev, "QCA Product ID :0x%08x",
78 le32_to_cpu(ver->product_id));
79 bt_dev_info(hdev, "QCA SOC Version :0x%08x",
80 le32_to_cpu(ver->soc_id));
81 bt_dev_info(hdev, "QCA ROM Version :0x%08x",
82 le16_to_cpu(ver->rom_ver));
83 bt_dev_info(hdev, "QCA Patch Version:0x%08x",
84 le16_to_cpu(ver->patch_ver));
85
86 if (ver->soc_id == 0 || ver->rom_ver == 0)
87 err = -EILSEQ;
88
89out:
90 kfree_skb(skb);
91 if (err)
92 bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
93
94 return err;
95}
96EXPORT_SYMBOL_GPL(qca_read_soc_version);
97
98static int qca_read_fw_build_info(struct hci_dev *hdev)
99{
100 struct sk_buff *skb;
101 struct edl_event_hdr *edl;
102 char cmd, build_label[QCA_FW_BUILD_VER_LEN];
103 int build_lbl_len, err = 0;
104
105 bt_dev_dbg(hdev, "QCA read fw build info");
106
107 cmd = EDL_GET_BUILD_INFO_CMD;
108 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
109 &cmd, 0, HCI_INIT_TIMEOUT);
110 if (IS_ERR(skb)) {
111 err = PTR_ERR(skb);
112 bt_dev_err(hdev, "Reading QCA fw build info failed (%d)",
113 err);
114 return err;
115 }
116
117 edl = (struct edl_event_hdr *)(skb->data);
118 if (!edl) {
119 bt_dev_err(hdev, "QCA read fw build info with no header");
120 err = -EILSEQ;
121 goto out;
122 }
123
124 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
125 edl->rtype != EDL_GET_BUILD_INFO_CMD) {
126 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
127 edl->rtype);
128 err = -EIO;
129 goto out;
130 }
131
132 build_lbl_len = edl->data[0];
133 if (build_lbl_len <= QCA_FW_BUILD_VER_LEN - 1) {
134 memcpy(build_label, edl->data + 1, build_lbl_len);
135 *(build_label + build_lbl_len) = '\0';
136 }
137
138 hci_set_fw_info(hdev, "%s", build_label);
139
140out:
141 kfree_skb(skb);
142 return err;
143}
144
145static int qca_send_patch_config_cmd(struct hci_dev *hdev)
146{
147 const u8 cmd[] = { EDL_PATCH_CONFIG_CMD, 0x01, 0, 0, 0 };
148 struct sk_buff *skb;
149 struct edl_event_hdr *edl;
150 int err;
151
152 bt_dev_dbg(hdev, "QCA Patch config");
153
154 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, sizeof(cmd),
155 cmd, 0, HCI_INIT_TIMEOUT);
156 if (IS_ERR(skb)) {
157 err = PTR_ERR(skb);
158 bt_dev_err(hdev, "Sending QCA Patch config failed (%d)", err);
159 return err;
160 }
161
162 if (skb->len != 2) {
163 bt_dev_err(hdev, "QCA Patch config cmd size mismatch len %d", skb->len);
164 err = -EILSEQ;
165 goto out;
166 }
167
168 edl = (struct edl_event_hdr *)(skb->data);
169 if (!edl) {
170 bt_dev_err(hdev, "QCA Patch config with no header");
171 err = -EILSEQ;
172 goto out;
173 }
174
175 if (edl->cresp != EDL_PATCH_CONFIG_RES_EVT || edl->rtype != EDL_PATCH_CONFIG_CMD) {
176 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
177 edl->rtype);
178 err = -EIO;
179 goto out;
180 }
181
182 err = 0;
183
184out:
185 kfree_skb(skb);
186 return err;
187}
188
189static int qca_send_reset(struct hci_dev *hdev)
190{
191 struct sk_buff *skb;
192 int err;
193
194 bt_dev_dbg(hdev, "QCA HCI_RESET");
195
196 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
197 if (IS_ERR(skb)) {
198 err = PTR_ERR(skb);
199 bt_dev_err(hdev, "QCA Reset failed (%d)", err);
200 return err;
201 }
202
203 kfree_skb(skb);
204
205 return 0;
206}
207
208static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid)
209{
210 u8 cmd;
211 struct sk_buff *skb;
212 struct edl_event_hdr *edl;
213 int err = 0;
214
215 cmd = EDL_GET_BID_REQ_CMD;
216 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
217 &cmd, 0, HCI_INIT_TIMEOUT);
218 if (IS_ERR(skb)) {
219 err = PTR_ERR(skb);
220 bt_dev_err(hdev, "Reading QCA board ID failed (%d)", err);
221 return err;
222 }
223
224 edl = skb_pull_data(skb, sizeof(*edl));
225 if (!edl) {
226 bt_dev_err(hdev, "QCA read board ID with no header");
227 err = -EILSEQ;
228 goto out;
229 }
230
231 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
232 edl->rtype != EDL_GET_BID_REQ_CMD) {
233 bt_dev_err(hdev, "QCA Wrong packet: %d %d", edl->cresp, edl->rtype);
234 err = -EIO;
235 goto out;
236 }
237
238 *bid = (edl->data[1] << 8) + edl->data[2];
239 bt_dev_dbg(hdev, "%s: bid = %x", __func__, *bid);
240
241out:
242 kfree_skb(skb);
243 return err;
244}
245
246int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
247{
248 struct sk_buff *skb;
249 int err;
250
251 bt_dev_dbg(hdev, "QCA pre shutdown cmd");
252
253 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
254 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
255
256 if (IS_ERR(skb)) {
257 err = PTR_ERR(skb);
258 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
259 return err;
260 }
261
262 kfree_skb(skb);
263
264 return 0;
265}
266EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
267
268static void qca_tlv_check_data(struct hci_dev *hdev,
269 struct qca_fw_config *config,
270 u8 *fw_data, enum qca_btsoc_type soc_type)
271{
272 const u8 *data;
273 u32 type_len;
274 u16 tag_id, tag_len;
275 int idx, length;
276 struct tlv_type_hdr *tlv;
277 struct tlv_type_patch *tlv_patch;
278 struct tlv_type_nvm *tlv_nvm;
279 uint8_t nvm_baud_rate = config->user_baud_rate;
280
281 config->dnld_mode = QCA_SKIP_EVT_NONE;
282 config->dnld_type = QCA_SKIP_EVT_NONE;
283
284 switch (config->type) {
285 case ELF_TYPE_PATCH:
286 config->dnld_mode = QCA_SKIP_EVT_VSE_CC;
287 config->dnld_type = QCA_SKIP_EVT_VSE_CC;
288
289 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]);
290 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]);
291 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]);
292 break;
293 case TLV_TYPE_PATCH:
294 tlv = (struct tlv_type_hdr *)fw_data;
295 type_len = le32_to_cpu(tlv->type_len);
296 tlv_patch = (struct tlv_type_patch *)tlv->data;
297
298 /* For Rome version 1.1 to 3.1, all segment commands
299 * are acked by a vendor specific event (VSE).
300 * For Rome >= 3.2, the download mode field indicates
301 * if VSE is skipped by the controller.
302 * In case VSE is skipped, only the last segment is acked.
303 */
304 config->dnld_mode = tlv_patch->download_mode;
305 config->dnld_type = config->dnld_mode;
306
307 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
308 BT_DBG("Total Length : %d bytes",
309 le32_to_cpu(tlv_patch->total_size));
310 BT_DBG("Patch Data Length : %d bytes",
311 le32_to_cpu(tlv_patch->data_length));
312 BT_DBG("Signing Format Version : 0x%x",
313 tlv_patch->format_version);
314 BT_DBG("Signature Algorithm : 0x%x",
315 tlv_patch->signature);
316 BT_DBG("Download mode : 0x%x",
317 tlv_patch->download_mode);
318 BT_DBG("Reserved : 0x%x",
319 tlv_patch->reserved1);
320 BT_DBG("Product ID : 0x%04x",
321 le16_to_cpu(tlv_patch->product_id));
322 BT_DBG("Rom Build Version : 0x%04x",
323 le16_to_cpu(tlv_patch->rom_build));
324 BT_DBG("Patch Version : 0x%04x",
325 le16_to_cpu(tlv_patch->patch_version));
326 BT_DBG("Reserved : 0x%x",
327 le16_to_cpu(tlv_patch->reserved2));
328 BT_DBG("Patch Entry Address : 0x%x",
329 le32_to_cpu(tlv_patch->entry));
330 break;
331
332 case TLV_TYPE_NVM:
333 tlv = (struct tlv_type_hdr *)fw_data;
334
335 type_len = le32_to_cpu(tlv->type_len);
336 length = (type_len >> 8) & 0x00ffffff;
337
338 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
339 BT_DBG("Length\t\t : %d bytes", length);
340
341 idx = 0;
342 data = tlv->data;
343 while (idx < length) {
344 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
345
346 tag_id = le16_to_cpu(tlv_nvm->tag_id);
347 tag_len = le16_to_cpu(tlv_nvm->tag_len);
348
349 /* Update NVM tags as needed */
350 switch (tag_id) {
351 case EDL_TAG_ID_HCI:
352 /* HCI transport layer parameters
353 * enabling software inband sleep
354 * onto controller side.
355 */
356 tlv_nvm->data[0] |= 0x80;
357
358 /* UART Baud Rate */
359 if (soc_type >= QCA_WCN3991)
360 tlv_nvm->data[1] = nvm_baud_rate;
361 else
362 tlv_nvm->data[2] = nvm_baud_rate;
363
364 break;
365
366 case EDL_TAG_ID_DEEP_SLEEP:
367 /* Sleep enable mask
368 * enabling deep sleep feature on controller.
369 */
370 tlv_nvm->data[0] |= 0x01;
371
372 break;
373 }
374
375 idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
376 }
377 break;
378
379 default:
380 BT_ERR("Unknown TLV type %d", config->type);
381 break;
382 }
383}
384
385static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
386 const u8 *data, enum qca_tlv_dnld_mode mode,
387 enum qca_btsoc_type soc_type)
388{
389 struct sk_buff *skb;
390 struct edl_event_hdr *edl;
391 struct tlv_seg_resp *tlv_resp;
392 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
393 int err = 0;
394 u8 event_type = HCI_EV_VENDOR;
395 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));
396 u8 rtype = EDL_TVL_DNLD_RES_EVT;
397
398 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
399 cmd[1] = seg_size;
400 memcpy(cmd + 2, data, seg_size);
401
402 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE)
403 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
404 cmd);
405
406 /* Unlike other SoC's sending version command response as payload to
407 * VSE event. WCN3991 sends version command response as a payload to
408 * command complete event.
409 */
410 if (soc_type >= QCA_WCN3991) {
411 event_type = 0;
412 rlen = sizeof(*edl);
413 rtype = EDL_PATCH_TLV_REQ_CMD;
414 }
415
416 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
417 event_type, HCI_INIT_TIMEOUT);
418 if (IS_ERR(skb)) {
419 err = PTR_ERR(skb);
420 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
421 return err;
422 }
423
424 if (skb->len != rlen) {
425 bt_dev_err(hdev, "QCA TLV response size mismatch");
426 err = -EILSEQ;
427 goto out;
428 }
429
430 edl = (struct edl_event_hdr *)(skb->data);
431 if (!edl) {
432 bt_dev_err(hdev, "TLV with no header");
433 err = -EILSEQ;
434 goto out;
435 }
436
437 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {
438 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",
439 edl->cresp, edl->rtype);
440 err = -EIO;
441 }
442
443 if (soc_type >= QCA_WCN3991)
444 goto out;
445
446 tlv_resp = (struct tlv_seg_resp *)(edl->data);
447 if (tlv_resp->result) {
448 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
449 edl->cresp, edl->rtype, tlv_resp->result);
450 }
451
452out:
453 kfree_skb(skb);
454
455 return err;
456}
457
458static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
459{
460 struct hci_event_hdr *hdr;
461 struct hci_ev_cmd_complete *evt;
462 struct sk_buff *skb;
463
464 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
465 if (!skb)
466 return -ENOMEM;
467
468 hdr = skb_put(skb, sizeof(*hdr));
469 hdr->evt = HCI_EV_CMD_COMPLETE;
470 hdr->plen = sizeof(*evt) + 1;
471
472 evt = skb_put(skb, sizeof(*evt));
473 evt->ncmd = 1;
474 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
475
476 skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
477
478 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
479
480 return hci_recv_frame(hdev, skb);
481}
482
483static int qca_download_firmware(struct hci_dev *hdev,
484 struct qca_fw_config *config,
485 enum qca_btsoc_type soc_type,
486 u8 rom_ver)
487{
488 const struct firmware *fw;
489 u8 *data;
490 const u8 *segment;
491 int ret, size, remain, i = 0;
492
493 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
494
495 ret = request_firmware(&fw, config->fwname, &hdev->dev);
496 if (ret) {
497 /* For WCN6750, if mbn file is not present then check for
498 * tlv file.
499 */
500 if (soc_type == QCA_WCN6750 && config->type == ELF_TYPE_PATCH) {
501 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)",
502 config->fwname, ret);
503 config->type = TLV_TYPE_PATCH;
504 snprintf(config->fwname, sizeof(config->fwname),
505 "qca/msbtfw%02x.tlv", rom_ver);
506 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
507 ret = request_firmware(&fw, config->fwname, &hdev->dev);
508 if (ret) {
509 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
510 config->fwname, ret);
511 return ret;
512 }
513 } else {
514 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
515 config->fwname, ret);
516 return ret;
517 }
518 }
519
520 size = fw->size;
521 data = vmalloc(fw->size);
522 if (!data) {
523 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s",
524 config->fwname);
525 release_firmware(fw);
526 return -ENOMEM;
527 }
528
529 memcpy(data, fw->data, size);
530 release_firmware(fw);
531
532 qca_tlv_check_data(hdev, config, data, soc_type);
533
534 segment = data;
535 remain = size;
536 while (remain > 0) {
537 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
538
539 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
540
541 remain -= segsize;
542 /* The last segment is always acked regardless download mode */
543 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
544 config->dnld_mode = QCA_SKIP_EVT_NONE;
545
546 ret = qca_tlv_send_segment(hdev, segsize, segment,
547 config->dnld_mode, soc_type);
548 if (ret)
549 goto out;
550
551 segment += segsize;
552 }
553
554 /* Latest qualcomm chipsets are not sending a command complete event
555 * for every fw packet sent. They only respond with a vendor specific
556 * event for the last packet. This optimization in the chip will
557 * decrease the BT in initialization time. Here we will inject a command
558 * complete event to avoid a command timeout error message.
559 */
560 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC ||
561 config->dnld_type == QCA_SKIP_EVT_VSE)
562 ret = qca_inject_cmd_complete_event(hdev);
563
564out:
565 vfree(data);
566
567 return ret;
568}
569
570static int qca_disable_soc_logging(struct hci_dev *hdev)
571{
572 struct sk_buff *skb;
573 u8 cmd[2];
574 int err;
575
576 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP;
577 cmd[1] = 0x00;
578 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd,
579 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
580 if (IS_ERR(skb)) {
581 err = PTR_ERR(skb);
582 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err);
583 return err;
584 }
585
586 kfree_skb(skb);
587
588 return 0;
589}
590
591int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
592{
593 struct sk_buff *skb;
594 u8 cmd[9];
595 int err;
596
597 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
598 cmd[1] = 0x02; /* TAG ID */
599 cmd[2] = sizeof(bdaddr_t); /* size */
600 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
601 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
602 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
603 if (IS_ERR(skb)) {
604 err = PTR_ERR(skb);
605 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
606 return err;
607 }
608
609 kfree_skb(skb);
610
611 return 0;
612}
613EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
614
615static void qca_generate_hsp_nvm_name(char *fwname, size_t max_size,
616 struct qca_btsoc_version ver, u8 rom_ver, u16 bid)
617{
618 const char *variant;
619
620 /* hsp gf chip */
621 if ((le32_to_cpu(ver.soc_id) & QCA_HSP_GF_SOC_MASK) == QCA_HSP_GF_SOC_ID)
622 variant = "g";
623 else
624 variant = "";
625
626 if (bid == 0x0)
627 snprintf(fwname, max_size, "qca/hpnv%02x%s.bin", rom_ver, variant);
628 else
629 snprintf(fwname, max_size, "qca/hpnv%02x%s.%x", rom_ver, variant, bid);
630}
631
632int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
633 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
634 const char *firmware_name)
635{
636 struct qca_fw_config config;
637 int err;
638 u8 rom_ver = 0;
639 u32 soc_ver;
640 u16 boardid = 0;
641
642 bt_dev_dbg(hdev, "QCA setup on UART");
643
644 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
645
646 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
647
648 config.user_baud_rate = baudrate;
649
650 /* Firmware files to download are based on ROM version.
651 * ROM version is derived from last two bytes of soc_ver.
652 */
653 if (soc_type == QCA_WCN3988)
654 rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f);
655 else
656 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
657
658 if (soc_type == QCA_WCN6750)
659 qca_send_patch_config_cmd(hdev);
660
661 /* Download rampatch file */
662 config.type = TLV_TYPE_PATCH;
663 switch (soc_type) {
664 case QCA_WCN3990:
665 case QCA_WCN3991:
666 case QCA_WCN3998:
667 snprintf(config.fwname, sizeof(config.fwname),
668 "qca/crbtfw%02x.tlv", rom_ver);
669 break;
670 case QCA_WCN3988:
671 snprintf(config.fwname, sizeof(config.fwname),
672 "qca/apbtfw%02x.tlv", rom_ver);
673 break;
674 case QCA_QCA2066:
675 snprintf(config.fwname, sizeof(config.fwname),
676 "qca/hpbtfw%02x.tlv", rom_ver);
677 break;
678 case QCA_QCA6390:
679 snprintf(config.fwname, sizeof(config.fwname),
680 "qca/htbtfw%02x.tlv", rom_ver);
681 break;
682 case QCA_WCN6750:
683 /* Choose mbn file by default.If mbn file is not found
684 * then choose tlv file
685 */
686 config.type = ELF_TYPE_PATCH;
687 snprintf(config.fwname, sizeof(config.fwname),
688 "qca/msbtfw%02x.mbn", rom_ver);
689 break;
690 case QCA_WCN6855:
691 snprintf(config.fwname, sizeof(config.fwname),
692 "qca/hpbtfw%02x.tlv", rom_ver);
693 break;
694 case QCA_WCN7850:
695 snprintf(config.fwname, sizeof(config.fwname),
696 "qca/hmtbtfw%02x.tlv", rom_ver);
697 break;
698 default:
699 snprintf(config.fwname, sizeof(config.fwname),
700 "qca/rampatch_%08x.bin", soc_ver);
701 }
702
703 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
704 if (err < 0) {
705 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
706 return err;
707 }
708
709 /* Give the controller some time to get ready to receive the NVM */
710 msleep(10);
711
712 if (soc_type == QCA_QCA2066)
713 qca_read_fw_board_id(hdev, &boardid);
714
715 /* Download NVM configuration */
716 config.type = TLV_TYPE_NVM;
717 if (firmware_name) {
718 snprintf(config.fwname, sizeof(config.fwname),
719 "qca/%s", firmware_name);
720 } else {
721 switch (soc_type) {
722 case QCA_WCN3990:
723 case QCA_WCN3991:
724 case QCA_WCN3998:
725 if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
726 snprintf(config.fwname, sizeof(config.fwname),
727 "qca/crnv%02xu.bin", rom_ver);
728 } else {
729 snprintf(config.fwname, sizeof(config.fwname),
730 "qca/crnv%02x.bin", rom_ver);
731 }
732 break;
733 case QCA_WCN3988:
734 snprintf(config.fwname, sizeof(config.fwname),
735 "qca/apnv%02x.bin", rom_ver);
736 break;
737 case QCA_QCA2066:
738 qca_generate_hsp_nvm_name(config.fwname,
739 sizeof(config.fwname), ver, rom_ver, boardid);
740 break;
741 case QCA_QCA6390:
742 snprintf(config.fwname, sizeof(config.fwname),
743 "qca/htnv%02x.bin", rom_ver);
744 break;
745 case QCA_WCN6750:
746 snprintf(config.fwname, sizeof(config.fwname),
747 "qca/msnv%02x.bin", rom_ver);
748 break;
749 case QCA_WCN6855:
750 snprintf(config.fwname, sizeof(config.fwname),
751 "qca/hpnv%02x.bin", rom_ver);
752 break;
753 case QCA_WCN7850:
754 snprintf(config.fwname, sizeof(config.fwname),
755 "qca/hmtnv%02x.bin", rom_ver);
756 break;
757
758 default:
759 snprintf(config.fwname, sizeof(config.fwname),
760 "qca/nvm_%08x.bin", soc_ver);
761 }
762 }
763
764 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
765 if (err < 0) {
766 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
767 return err;
768 }
769
770 switch (soc_type) {
771 case QCA_WCN3991:
772 case QCA_QCA2066:
773 case QCA_QCA6390:
774 case QCA_WCN6750:
775 case QCA_WCN6855:
776 case QCA_WCN7850:
777 err = qca_disable_soc_logging(hdev);
778 if (err < 0)
779 return err;
780 break;
781 default:
782 break;
783 }
784
785 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the
786 * VsMsftOpCode.
787 */
788 switch (soc_type) {
789 case QCA_WCN3988:
790 case QCA_WCN3990:
791 case QCA_WCN3991:
792 case QCA_WCN3998:
793 case QCA_WCN6750:
794 hci_set_msft_opcode(hdev, 0xFD70);
795 break;
796 default:
797 break;
798 }
799
800 /* Perform HCI reset */
801 err = qca_send_reset(hdev);
802 if (err < 0) {
803 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
804 return err;
805 }
806
807 switch (soc_type) {
808 case QCA_WCN3991:
809 case QCA_WCN6750:
810 case QCA_WCN6855:
811 case QCA_WCN7850:
812 /* get fw build info */
813 err = qca_read_fw_build_info(hdev);
814 if (err < 0)
815 return err;
816 break;
817 default:
818 break;
819 }
820
821 bt_dev_info(hdev, "QCA setup on UART is completed");
822
823 return 0;
824}
825EXPORT_SYMBOL_GPL(qca_uart_setup);
826
827int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
828{
829 struct sk_buff *skb;
830 int err;
831
832 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr,
833 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
834 if (IS_ERR(skb)) {
835 err = PTR_ERR(skb);
836 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
837 return err;
838 }
839
840 kfree_skb(skb);
841
842 return 0;
843}
844EXPORT_SYMBOL_GPL(qca_set_bdaddr);
845
846
847MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
848MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
849MODULE_VERSION(VERSION);
850MODULE_LICENSE("GPL");
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
10#include <net/bluetooth/bluetooth.h>
11#include <net/bluetooth/hci_core.h>
12
13#include "btqca.h"
14
15#define VERSION "0.1"
16
17int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
18{
19 struct sk_buff *skb;
20 struct edl_event_hdr *edl;
21 struct rome_version *ver;
22 char cmd;
23 int err = 0;
24
25 bt_dev_dbg(hdev, "QCA Version Request");
26
27 cmd = EDL_PATCH_VER_REQ_CMD;
28 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
29 &cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
30 if (IS_ERR(skb)) {
31 err = PTR_ERR(skb);
32 bt_dev_err(hdev, "Reading QCA version information failed (%d)",
33 err);
34 return err;
35 }
36
37 if (skb->len != sizeof(*edl) + sizeof(*ver)) {
38 bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
39 err = -EILSEQ;
40 goto out;
41 }
42
43 edl = (struct edl_event_hdr *)(skb->data);
44 if (!edl) {
45 bt_dev_err(hdev, "QCA TLV with no header");
46 err = -EILSEQ;
47 goto out;
48 }
49
50 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
51 edl->rtype != EDL_APP_VER_RES_EVT) {
52 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
53 edl->rtype);
54 err = -EIO;
55 goto out;
56 }
57
58 ver = (struct rome_version *)(edl->data);
59
60 BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
61 BT_DBG("%s: Patch :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
62 BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
63 BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
64
65 /* QCA chipset version can be decided by patch and SoC
66 * version, combination with upper 2 bytes from SoC
67 * and lower 2 bytes from patch will be used.
68 */
69 *soc_version = (le32_to_cpu(ver->soc_id) << 16) |
70 (le16_to_cpu(ver->rome_ver) & 0x0000ffff);
71 if (*soc_version == 0)
72 err = -EILSEQ;
73
74out:
75 kfree_skb(skb);
76 if (err)
77 bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
78
79 return err;
80}
81EXPORT_SYMBOL_GPL(qca_read_soc_version);
82
83static int qca_send_reset(struct hci_dev *hdev)
84{
85 struct sk_buff *skb;
86 int err;
87
88 bt_dev_dbg(hdev, "QCA HCI_RESET");
89
90 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
91 if (IS_ERR(skb)) {
92 err = PTR_ERR(skb);
93 bt_dev_err(hdev, "QCA Reset failed (%d)", err);
94 return err;
95 }
96
97 kfree_skb(skb);
98
99 return 0;
100}
101
102int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
103{
104 struct sk_buff *skb;
105 int err;
106
107 bt_dev_dbg(hdev, "QCA pre shutdown cmd");
108
109 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
110 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
111
112 if (IS_ERR(skb)) {
113 err = PTR_ERR(skb);
114 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
115 return err;
116 }
117
118 kfree_skb(skb);
119
120 return 0;
121}
122EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
123
124static void qca_tlv_check_data(struct rome_config *config,
125 const struct firmware *fw)
126{
127 const u8 *data;
128 u32 type_len;
129 u16 tag_id, tag_len;
130 int idx, length;
131 struct tlv_type_hdr *tlv;
132 struct tlv_type_patch *tlv_patch;
133 struct tlv_type_nvm *tlv_nvm;
134
135 tlv = (struct tlv_type_hdr *)fw->data;
136
137 type_len = le32_to_cpu(tlv->type_len);
138 length = (type_len >> 8) & 0x00ffffff;
139
140 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
141 BT_DBG("Length\t\t : %d bytes", length);
142
143 config->dnld_mode = ROME_SKIP_EVT_NONE;
144 config->dnld_type = ROME_SKIP_EVT_NONE;
145
146 switch (config->type) {
147 case TLV_TYPE_PATCH:
148 tlv_patch = (struct tlv_type_patch *)tlv->data;
149
150 /* For Rome version 1.1 to 3.1, all segment commands
151 * are acked by a vendor specific event (VSE).
152 * For Rome >= 3.2, the download mode field indicates
153 * if VSE is skipped by the controller.
154 * In case VSE is skipped, only the last segment is acked.
155 */
156 config->dnld_mode = tlv_patch->download_mode;
157 config->dnld_type = config->dnld_mode;
158
159 BT_DBG("Total Length : %d bytes",
160 le32_to_cpu(tlv_patch->total_size));
161 BT_DBG("Patch Data Length : %d bytes",
162 le32_to_cpu(tlv_patch->data_length));
163 BT_DBG("Signing Format Version : 0x%x",
164 tlv_patch->format_version);
165 BT_DBG("Signature Algorithm : 0x%x",
166 tlv_patch->signature);
167 BT_DBG("Download mode : 0x%x",
168 tlv_patch->download_mode);
169 BT_DBG("Reserved : 0x%x",
170 tlv_patch->reserved1);
171 BT_DBG("Product ID : 0x%04x",
172 le16_to_cpu(tlv_patch->product_id));
173 BT_DBG("Rom Build Version : 0x%04x",
174 le16_to_cpu(tlv_patch->rom_build));
175 BT_DBG("Patch Version : 0x%04x",
176 le16_to_cpu(tlv_patch->patch_version));
177 BT_DBG("Reserved : 0x%x",
178 le16_to_cpu(tlv_patch->reserved2));
179 BT_DBG("Patch Entry Address : 0x%x",
180 le32_to_cpu(tlv_patch->entry));
181 break;
182
183 case TLV_TYPE_NVM:
184 idx = 0;
185 data = tlv->data;
186 while (idx < length) {
187 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
188
189 tag_id = le16_to_cpu(tlv_nvm->tag_id);
190 tag_len = le16_to_cpu(tlv_nvm->tag_len);
191
192 /* Update NVM tags as needed */
193 switch (tag_id) {
194 case EDL_TAG_ID_HCI:
195 /* HCI transport layer parameters
196 * enabling software inband sleep
197 * onto controller side.
198 */
199 tlv_nvm->data[0] |= 0x80;
200
201 /* UART Baud Rate */
202 tlv_nvm->data[2] = config->user_baud_rate;
203
204 break;
205
206 case EDL_TAG_ID_DEEP_SLEEP:
207 /* Sleep enable mask
208 * enabling deep sleep feature on controller.
209 */
210 tlv_nvm->data[0] |= 0x01;
211
212 break;
213 }
214
215 idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
216 }
217 break;
218
219 default:
220 BT_ERR("Unknown TLV type %d", config->type);
221 break;
222 }
223}
224
225static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
226 const u8 *data, enum rome_tlv_dnld_mode mode)
227{
228 struct sk_buff *skb;
229 struct edl_event_hdr *edl;
230 struct tlv_seg_resp *tlv_resp;
231 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
232 int err = 0;
233
234 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
235 cmd[1] = seg_size;
236 memcpy(cmd + 2, data, seg_size);
237
238 if (mode == ROME_SKIP_EVT_VSE_CC || mode == ROME_SKIP_EVT_VSE)
239 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
240 cmd);
241
242 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
243 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
244 if (IS_ERR(skb)) {
245 err = PTR_ERR(skb);
246 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
247 return err;
248 }
249
250 if (skb->len != sizeof(*edl) + sizeof(*tlv_resp)) {
251 bt_dev_err(hdev, "QCA TLV response size mismatch");
252 err = -EILSEQ;
253 goto out;
254 }
255
256 edl = (struct edl_event_hdr *)(skb->data);
257 if (!edl) {
258 bt_dev_err(hdev, "TLV with no header");
259 err = -EILSEQ;
260 goto out;
261 }
262
263 tlv_resp = (struct tlv_seg_resp *)(edl->data);
264
265 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
266 edl->rtype != EDL_TVL_DNLD_RES_EVT || tlv_resp->result != 0x00) {
267 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
268 edl->cresp, edl->rtype, tlv_resp->result);
269 err = -EIO;
270 }
271
272out:
273 kfree_skb(skb);
274
275 return err;
276}
277
278static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
279{
280 struct hci_event_hdr *hdr;
281 struct hci_ev_cmd_complete *evt;
282 struct sk_buff *skb;
283
284 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
285 if (!skb)
286 return -ENOMEM;
287
288 hdr = skb_put(skb, sizeof(*hdr));
289 hdr->evt = HCI_EV_CMD_COMPLETE;
290 hdr->plen = sizeof(*evt) + 1;
291
292 evt = skb_put(skb, sizeof(*evt));
293 evt->ncmd = 1;
294 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
295
296 skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
297
298 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
299
300 return hci_recv_frame(hdev, skb);
301}
302
303static int qca_download_firmware(struct hci_dev *hdev,
304 struct rome_config *config)
305{
306 const struct firmware *fw;
307 const u8 *segment;
308 int ret, remain, i = 0;
309
310 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
311
312 ret = request_firmware(&fw, config->fwname, &hdev->dev);
313 if (ret) {
314 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
315 config->fwname, ret);
316 return ret;
317 }
318
319 qca_tlv_check_data(config, fw);
320
321 segment = fw->data;
322 remain = fw->size;
323 while (remain > 0) {
324 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
325
326 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
327
328 remain -= segsize;
329 /* The last segment is always acked regardless download mode */
330 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
331 config->dnld_mode = ROME_SKIP_EVT_NONE;
332
333 ret = qca_tlv_send_segment(hdev, segsize, segment,
334 config->dnld_mode);
335 if (ret)
336 goto out;
337
338 segment += segsize;
339 }
340
341 /* Latest qualcomm chipsets are not sending a command complete event
342 * for every fw packet sent. They only respond with a vendor specific
343 * event for the last packet. This optimization in the chip will
344 * decrease the BT in initialization time. Here we will inject a command
345 * complete event to avoid a command timeout error message.
346 */
347 if (config->dnld_type == ROME_SKIP_EVT_VSE_CC ||
348 config->dnld_type == ROME_SKIP_EVT_VSE)
349 ret = qca_inject_cmd_complete_event(hdev);
350
351out:
352 release_firmware(fw);
353
354 return ret;
355}
356
357int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
358{
359 struct sk_buff *skb;
360 u8 cmd[9];
361 int err;
362
363 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
364 cmd[1] = 0x02; /* TAG ID */
365 cmd[2] = sizeof(bdaddr_t); /* size */
366 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
367 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
368 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
369 if (IS_ERR(skb)) {
370 err = PTR_ERR(skb);
371 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
372 return err;
373 }
374
375 kfree_skb(skb);
376
377 return 0;
378}
379EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
380
381int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
382 enum qca_btsoc_type soc_type, u32 soc_ver,
383 const char *firmware_name)
384{
385 struct rome_config config;
386 int err;
387 u8 rom_ver = 0;
388
389 bt_dev_dbg(hdev, "QCA setup on UART");
390
391 config.user_baud_rate = baudrate;
392
393 /* Download rampatch file */
394 config.type = TLV_TYPE_PATCH;
395 if (qca_is_wcn399x(soc_type)) {
396 /* Firmware files to download are based on ROM version.
397 * ROM version is derived from last two bytes of soc_ver.
398 */
399 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
400 (soc_ver & 0x0000000f);
401 snprintf(config.fwname, sizeof(config.fwname),
402 "qca/crbtfw%02x.tlv", rom_ver);
403 } else {
404 snprintf(config.fwname, sizeof(config.fwname),
405 "qca/rampatch_%08x.bin", soc_ver);
406 }
407
408 err = qca_download_firmware(hdev, &config);
409 if (err < 0) {
410 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
411 return err;
412 }
413
414 /* Give the controller some time to get ready to receive the NVM */
415 msleep(10);
416
417 /* Download NVM configuration */
418 config.type = TLV_TYPE_NVM;
419 if (firmware_name)
420 snprintf(config.fwname, sizeof(config.fwname),
421 "qca/%s", firmware_name);
422 else if (qca_is_wcn399x(soc_type))
423 snprintf(config.fwname, sizeof(config.fwname),
424 "qca/crnv%02x.bin", rom_ver);
425 else
426 snprintf(config.fwname, sizeof(config.fwname),
427 "qca/nvm_%08x.bin", soc_ver);
428
429 err = qca_download_firmware(hdev, &config);
430 if (err < 0) {
431 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
432 return err;
433 }
434
435 /* Perform HCI reset */
436 err = qca_send_reset(hdev);
437 if (err < 0) {
438 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
439 return err;
440 }
441
442 bt_dev_info(hdev, "QCA setup on UART is completed");
443
444 return 0;
445}
446EXPORT_SYMBOL_GPL(qca_uart_setup);
447
448int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
449{
450 struct sk_buff *skb;
451 int err;
452
453 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr,
454 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
455 if (IS_ERR(skb)) {
456 err = PTR_ERR(skb);
457 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
458 return err;
459 }
460
461 kfree_skb(skb);
462
463 return 0;
464}
465EXPORT_SYMBOL_GPL(qca_set_bdaddr);
466
467
468MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
469MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
470MODULE_VERSION(VERSION);
471MODULE_LICENSE("GPL");