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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, HCI_EV_VENDOR, 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
208int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
209{
210 struct sk_buff *skb;
211 int err;
212
213 bt_dev_dbg(hdev, "QCA pre shutdown cmd");
214
215 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
216 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
217
218 if (IS_ERR(skb)) {
219 err = PTR_ERR(skb);
220 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
221 return err;
222 }
223
224 kfree_skb(skb);
225
226 return 0;
227}
228EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
229
230static void qca_tlv_check_data(struct hci_dev *hdev,
231 struct qca_fw_config *config,
232 u8 *fw_data, enum qca_btsoc_type soc_type)
233{
234 const u8 *data;
235 u32 type_len;
236 u16 tag_id, tag_len;
237 int idx, length;
238 struct tlv_type_hdr *tlv;
239 struct tlv_type_patch *tlv_patch;
240 struct tlv_type_nvm *tlv_nvm;
241 uint8_t nvm_baud_rate = config->user_baud_rate;
242
243 config->dnld_mode = QCA_SKIP_EVT_NONE;
244 config->dnld_type = QCA_SKIP_EVT_NONE;
245
246 switch (config->type) {
247 case ELF_TYPE_PATCH:
248 config->dnld_mode = QCA_SKIP_EVT_VSE_CC;
249 config->dnld_type = QCA_SKIP_EVT_VSE_CC;
250
251 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]);
252 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]);
253 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]);
254 break;
255 case TLV_TYPE_PATCH:
256 tlv = (struct tlv_type_hdr *)fw_data;
257 type_len = le32_to_cpu(tlv->type_len);
258 tlv_patch = (struct tlv_type_patch *)tlv->data;
259
260 /* For Rome version 1.1 to 3.1, all segment commands
261 * are acked by a vendor specific event (VSE).
262 * For Rome >= 3.2, the download mode field indicates
263 * if VSE is skipped by the controller.
264 * In case VSE is skipped, only the last segment is acked.
265 */
266 config->dnld_mode = tlv_patch->download_mode;
267 config->dnld_type = config->dnld_mode;
268
269 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
270 BT_DBG("Total Length : %d bytes",
271 le32_to_cpu(tlv_patch->total_size));
272 BT_DBG("Patch Data Length : %d bytes",
273 le32_to_cpu(tlv_patch->data_length));
274 BT_DBG("Signing Format Version : 0x%x",
275 tlv_patch->format_version);
276 BT_DBG("Signature Algorithm : 0x%x",
277 tlv_patch->signature);
278 BT_DBG("Download mode : 0x%x",
279 tlv_patch->download_mode);
280 BT_DBG("Reserved : 0x%x",
281 tlv_patch->reserved1);
282 BT_DBG("Product ID : 0x%04x",
283 le16_to_cpu(tlv_patch->product_id));
284 BT_DBG("Rom Build Version : 0x%04x",
285 le16_to_cpu(tlv_patch->rom_build));
286 BT_DBG("Patch Version : 0x%04x",
287 le16_to_cpu(tlv_patch->patch_version));
288 BT_DBG("Reserved : 0x%x",
289 le16_to_cpu(tlv_patch->reserved2));
290 BT_DBG("Patch Entry Address : 0x%x",
291 le32_to_cpu(tlv_patch->entry));
292 break;
293
294 case TLV_TYPE_NVM:
295 tlv = (struct tlv_type_hdr *)fw_data;
296
297 type_len = le32_to_cpu(tlv->type_len);
298 length = (type_len >> 8) & 0x00ffffff;
299
300 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
301 BT_DBG("Length\t\t : %d bytes", length);
302
303 idx = 0;
304 data = tlv->data;
305 while (idx < length) {
306 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
307
308 tag_id = le16_to_cpu(tlv_nvm->tag_id);
309 tag_len = le16_to_cpu(tlv_nvm->tag_len);
310
311 /* Update NVM tags as needed */
312 switch (tag_id) {
313 case EDL_TAG_ID_HCI:
314 /* HCI transport layer parameters
315 * enabling software inband sleep
316 * onto controller side.
317 */
318 tlv_nvm->data[0] |= 0x80;
319
320 /* UART Baud Rate */
321 if (soc_type >= QCA_WCN3991)
322 tlv_nvm->data[1] = nvm_baud_rate;
323 else
324 tlv_nvm->data[2] = nvm_baud_rate;
325
326 break;
327
328 case EDL_TAG_ID_DEEP_SLEEP:
329 /* Sleep enable mask
330 * enabling deep sleep feature on controller.
331 */
332 tlv_nvm->data[0] |= 0x01;
333
334 break;
335 }
336
337 idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
338 }
339 break;
340
341 default:
342 BT_ERR("Unknown TLV type %d", config->type);
343 break;
344 }
345}
346
347static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
348 const u8 *data, enum qca_tlv_dnld_mode mode,
349 enum qca_btsoc_type soc_type)
350{
351 struct sk_buff *skb;
352 struct edl_event_hdr *edl;
353 struct tlv_seg_resp *tlv_resp;
354 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
355 int err = 0;
356 u8 event_type = HCI_EV_VENDOR;
357 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));
358 u8 rtype = EDL_TVL_DNLD_RES_EVT;
359
360 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
361 cmd[1] = seg_size;
362 memcpy(cmd + 2, data, seg_size);
363
364 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE)
365 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
366 cmd);
367
368 /* Unlike other SoC's sending version command response as payload to
369 * VSE event. WCN3991 sends version command response as a payload to
370 * command complete event.
371 */
372 if (soc_type >= QCA_WCN3991) {
373 event_type = 0;
374 rlen = sizeof(*edl);
375 rtype = EDL_PATCH_TLV_REQ_CMD;
376 }
377
378 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
379 event_type, HCI_INIT_TIMEOUT);
380 if (IS_ERR(skb)) {
381 err = PTR_ERR(skb);
382 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
383 return err;
384 }
385
386 if (skb->len != rlen) {
387 bt_dev_err(hdev, "QCA TLV response size mismatch");
388 err = -EILSEQ;
389 goto out;
390 }
391
392 edl = (struct edl_event_hdr *)(skb->data);
393 if (!edl) {
394 bt_dev_err(hdev, "TLV with no header");
395 err = -EILSEQ;
396 goto out;
397 }
398
399 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {
400 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",
401 edl->cresp, edl->rtype);
402 err = -EIO;
403 }
404
405 if (soc_type >= QCA_WCN3991)
406 goto out;
407
408 tlv_resp = (struct tlv_seg_resp *)(edl->data);
409 if (tlv_resp->result) {
410 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
411 edl->cresp, edl->rtype, tlv_resp->result);
412 }
413
414out:
415 kfree_skb(skb);
416
417 return err;
418}
419
420static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
421{
422 struct hci_event_hdr *hdr;
423 struct hci_ev_cmd_complete *evt;
424 struct sk_buff *skb;
425
426 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
427 if (!skb)
428 return -ENOMEM;
429
430 hdr = skb_put(skb, sizeof(*hdr));
431 hdr->evt = HCI_EV_CMD_COMPLETE;
432 hdr->plen = sizeof(*evt) + 1;
433
434 evt = skb_put(skb, sizeof(*evt));
435 evt->ncmd = 1;
436 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
437
438 skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
439
440 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
441
442 return hci_recv_frame(hdev, skb);
443}
444
445static int qca_download_firmware(struct hci_dev *hdev,
446 struct qca_fw_config *config,
447 enum qca_btsoc_type soc_type,
448 u8 rom_ver)
449{
450 const struct firmware *fw;
451 u8 *data;
452 const u8 *segment;
453 int ret, size, remain, i = 0;
454
455 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
456
457 ret = request_firmware(&fw, config->fwname, &hdev->dev);
458 if (ret) {
459 /* For WCN6750, if mbn file is not present then check for
460 * tlv file.
461 */
462 if (soc_type == QCA_WCN6750 && config->type == ELF_TYPE_PATCH) {
463 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)",
464 config->fwname, ret);
465 config->type = TLV_TYPE_PATCH;
466 snprintf(config->fwname, sizeof(config->fwname),
467 "qca/msbtfw%02x.tlv", rom_ver);
468 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
469 ret = request_firmware(&fw, config->fwname, &hdev->dev);
470 if (ret) {
471 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
472 config->fwname, ret);
473 return ret;
474 }
475 } else {
476 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
477 config->fwname, ret);
478 return ret;
479 }
480 }
481
482 size = fw->size;
483 data = vmalloc(fw->size);
484 if (!data) {
485 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s",
486 config->fwname);
487 release_firmware(fw);
488 return -ENOMEM;
489 }
490
491 memcpy(data, fw->data, size);
492 release_firmware(fw);
493
494 qca_tlv_check_data(hdev, config, data, soc_type);
495
496 segment = data;
497 remain = size;
498 while (remain > 0) {
499 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
500
501 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
502
503 remain -= segsize;
504 /* The last segment is always acked regardless download mode */
505 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
506 config->dnld_mode = QCA_SKIP_EVT_NONE;
507
508 ret = qca_tlv_send_segment(hdev, segsize, segment,
509 config->dnld_mode, soc_type);
510 if (ret)
511 goto out;
512
513 segment += segsize;
514 }
515
516 /* Latest qualcomm chipsets are not sending a command complete event
517 * for every fw packet sent. They only respond with a vendor specific
518 * event for the last packet. This optimization in the chip will
519 * decrease the BT in initialization time. Here we will inject a command
520 * complete event to avoid a command timeout error message.
521 */
522 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC ||
523 config->dnld_type == QCA_SKIP_EVT_VSE)
524 ret = qca_inject_cmd_complete_event(hdev);
525
526out:
527 vfree(data);
528
529 return ret;
530}
531
532static int qca_disable_soc_logging(struct hci_dev *hdev)
533{
534 struct sk_buff *skb;
535 u8 cmd[2];
536 int err;
537
538 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP;
539 cmd[1] = 0x00;
540 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd,
541 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
542 if (IS_ERR(skb)) {
543 err = PTR_ERR(skb);
544 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err);
545 return err;
546 }
547
548 kfree_skb(skb);
549
550 return 0;
551}
552
553int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
554{
555 struct sk_buff *skb;
556 u8 cmd[9];
557 int err;
558
559 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
560 cmd[1] = 0x02; /* TAG ID */
561 cmd[2] = sizeof(bdaddr_t); /* size */
562 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
563 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
564 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
565 if (IS_ERR(skb)) {
566 err = PTR_ERR(skb);
567 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
568 return err;
569 }
570
571 kfree_skb(skb);
572
573 return 0;
574}
575EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
576
577int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
578 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
579 const char *firmware_name)
580{
581 struct qca_fw_config config;
582 int err;
583 u8 rom_ver = 0;
584 u32 soc_ver;
585
586 bt_dev_dbg(hdev, "QCA setup on UART");
587
588 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
589
590 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
591
592 config.user_baud_rate = baudrate;
593
594 /* Firmware files to download are based on ROM version.
595 * ROM version is derived from last two bytes of soc_ver.
596 */
597 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
598
599 if (soc_type == QCA_WCN6750)
600 qca_send_patch_config_cmd(hdev);
601
602 /* Download rampatch file */
603 config.type = TLV_TYPE_PATCH;
604 if (qca_is_wcn399x(soc_type)) {
605 snprintf(config.fwname, sizeof(config.fwname),
606 "qca/crbtfw%02x.tlv", rom_ver);
607 } else if (soc_type == QCA_QCA6390) {
608 snprintf(config.fwname, sizeof(config.fwname),
609 "qca/htbtfw%02x.tlv", rom_ver);
610 } else if (soc_type == QCA_WCN6750) {
611 /* Choose mbn file by default.If mbn file is not found
612 * then choose tlv file
613 */
614 config.type = ELF_TYPE_PATCH;
615 snprintf(config.fwname, sizeof(config.fwname),
616 "qca/msbtfw%02x.mbn", rom_ver);
617 } else {
618 snprintf(config.fwname, sizeof(config.fwname),
619 "qca/rampatch_%08x.bin", soc_ver);
620 }
621
622 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
623 if (err < 0) {
624 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
625 return err;
626 }
627
628 /* Give the controller some time to get ready to receive the NVM */
629 msleep(10);
630
631 /* Download NVM configuration */
632 config.type = TLV_TYPE_NVM;
633 if (firmware_name)
634 snprintf(config.fwname, sizeof(config.fwname),
635 "qca/%s", firmware_name);
636 else if (qca_is_wcn399x(soc_type)) {
637 if (ver.soc_id == QCA_WCN3991_SOC_ID) {
638 snprintf(config.fwname, sizeof(config.fwname),
639 "qca/crnv%02xu.bin", rom_ver);
640 } else {
641 snprintf(config.fwname, sizeof(config.fwname),
642 "qca/crnv%02x.bin", rom_ver);
643 }
644 }
645 else if (soc_type == QCA_QCA6390)
646 snprintf(config.fwname, sizeof(config.fwname),
647 "qca/htnv%02x.bin", rom_ver);
648 else if (soc_type == QCA_WCN6750)
649 snprintf(config.fwname, sizeof(config.fwname),
650 "qca/msnv%02x.bin", rom_ver);
651 else
652 snprintf(config.fwname, sizeof(config.fwname),
653 "qca/nvm_%08x.bin", soc_ver);
654
655 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
656 if (err < 0) {
657 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
658 return err;
659 }
660
661 if (soc_type >= QCA_WCN3991) {
662 err = qca_disable_soc_logging(hdev);
663 if (err < 0)
664 return err;
665 }
666
667 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the
668 * VsMsftOpCode.
669 */
670 switch (soc_type) {
671 case QCA_WCN3990:
672 case QCA_WCN3991:
673 case QCA_WCN3998:
674 case QCA_WCN6750:
675 hci_set_msft_opcode(hdev, 0xFD70);
676 break;
677 default:
678 break;
679 }
680
681 /* Perform HCI reset */
682 err = qca_send_reset(hdev);
683 if (err < 0) {
684 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
685 return err;
686 }
687
688 if (soc_type == QCA_WCN3991 || soc_type == QCA_WCN6750) {
689 /* get fw build info */
690 err = qca_read_fw_build_info(hdev);
691 if (err < 0)
692 return err;
693 }
694
695 bt_dev_info(hdev, "QCA setup on UART is completed");
696
697 return 0;
698}
699EXPORT_SYMBOL_GPL(qca_uart_setup);
700
701int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
702{
703 struct sk_buff *skb;
704 int err;
705
706 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6, bdaddr,
707 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
708 if (IS_ERR(skb)) {
709 err = PTR_ERR(skb);
710 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
711 return err;
712 }
713
714 kfree_skb(skb);
715
716 return 0;
717}
718EXPORT_SYMBOL_GPL(qca_set_bdaddr);
719
720
721MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
722MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
723MODULE_VERSION(VERSION);
724MODULE_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#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 *build_label;
103 char cmd;
104 int build_lbl_len, err = 0;
105
106 bt_dev_dbg(hdev, "QCA read fw build info");
107
108 cmd = EDL_GET_BUILD_INFO_CMD;
109 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
110 &cmd, 0, HCI_INIT_TIMEOUT);
111 if (IS_ERR(skb)) {
112 err = PTR_ERR(skb);
113 bt_dev_err(hdev, "Reading QCA fw build info failed (%d)",
114 err);
115 return err;
116 }
117
118 if (skb->len < sizeof(*edl)) {
119 err = -EILSEQ;
120 goto out;
121 }
122
123 edl = (struct edl_event_hdr *)(skb->data);
124 if (!edl) {
125 bt_dev_err(hdev, "QCA read fw build info with no header");
126 err = -EILSEQ;
127 goto out;
128 }
129
130 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
131 edl->rtype != EDL_GET_BUILD_INFO_CMD) {
132 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
133 edl->rtype);
134 err = -EIO;
135 goto out;
136 }
137
138 if (skb->len < sizeof(*edl) + 1) {
139 err = -EILSEQ;
140 goto out;
141 }
142
143 build_lbl_len = edl->data[0];
144
145 if (skb->len < sizeof(*edl) + 1 + build_lbl_len) {
146 err = -EILSEQ;
147 goto out;
148 }
149
150 build_label = kstrndup(&edl->data[1], build_lbl_len, GFP_KERNEL);
151 if (!build_label) {
152 err = -ENOMEM;
153 goto out;
154 }
155
156 hci_set_fw_info(hdev, "%s", build_label);
157
158 kfree(build_label);
159out:
160 kfree_skb(skb);
161 return err;
162}
163
164static int qca_send_patch_config_cmd(struct hci_dev *hdev)
165{
166 const u8 cmd[] = { EDL_PATCH_CONFIG_CMD, 0x01, 0, 0, 0 };
167 struct sk_buff *skb;
168 struct edl_event_hdr *edl;
169 int err;
170
171 bt_dev_dbg(hdev, "QCA Patch config");
172
173 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, sizeof(cmd),
174 cmd, 0, HCI_INIT_TIMEOUT);
175 if (IS_ERR(skb)) {
176 err = PTR_ERR(skb);
177 bt_dev_err(hdev, "Sending QCA Patch config failed (%d)", err);
178 return err;
179 }
180
181 if (skb->len != 2) {
182 bt_dev_err(hdev, "QCA Patch config cmd size mismatch len %d", skb->len);
183 err = -EILSEQ;
184 goto out;
185 }
186
187 edl = (struct edl_event_hdr *)(skb->data);
188 if (!edl) {
189 bt_dev_err(hdev, "QCA Patch config with no header");
190 err = -EILSEQ;
191 goto out;
192 }
193
194 if (edl->cresp != EDL_PATCH_CONFIG_RES_EVT || edl->rtype != EDL_PATCH_CONFIG_CMD) {
195 bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
196 edl->rtype);
197 err = -EIO;
198 goto out;
199 }
200
201 err = 0;
202
203out:
204 kfree_skb(skb);
205 return err;
206}
207
208static int qca_send_reset(struct hci_dev *hdev)
209{
210 struct sk_buff *skb;
211 int err;
212
213 bt_dev_dbg(hdev, "QCA HCI_RESET");
214
215 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
216 if (IS_ERR(skb)) {
217 err = PTR_ERR(skb);
218 bt_dev_err(hdev, "QCA Reset failed (%d)", err);
219 return err;
220 }
221
222 kfree_skb(skb);
223
224 return 0;
225}
226
227static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid)
228{
229 u8 cmd;
230 struct sk_buff *skb;
231 struct edl_event_hdr *edl;
232 int err = 0;
233
234 cmd = EDL_GET_BID_REQ_CMD;
235 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
236 &cmd, 0, HCI_INIT_TIMEOUT);
237 if (IS_ERR(skb)) {
238 err = PTR_ERR(skb);
239 bt_dev_err(hdev, "Reading QCA board ID failed (%d)", err);
240 return err;
241 }
242
243 edl = skb_pull_data(skb, sizeof(*edl));
244 if (!edl) {
245 bt_dev_err(hdev, "QCA read board ID with no header");
246 err = -EILSEQ;
247 goto out;
248 }
249
250 if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
251 edl->rtype != EDL_GET_BID_REQ_CMD) {
252 bt_dev_err(hdev, "QCA Wrong packet: %d %d", edl->cresp, edl->rtype);
253 err = -EIO;
254 goto out;
255 }
256
257 if (skb->len < 3) {
258 err = -EILSEQ;
259 goto out;
260 }
261
262 *bid = (edl->data[1] << 8) + edl->data[2];
263 bt_dev_dbg(hdev, "%s: bid = %x", __func__, *bid);
264
265out:
266 kfree_skb(skb);
267 return err;
268}
269
270int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
271{
272 struct sk_buff *skb;
273 int err;
274
275 bt_dev_dbg(hdev, "QCA pre shutdown cmd");
276
277 skb = __hci_cmd_sync_ev(hdev, QCA_PRE_SHUTDOWN_CMD, 0,
278 NULL, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
279
280 if (IS_ERR(skb)) {
281 err = PTR_ERR(skb);
282 bt_dev_err(hdev, "QCA preshutdown_cmd failed (%d)", err);
283 return err;
284 }
285
286 kfree_skb(skb);
287
288 return 0;
289}
290EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
291
292static int qca_tlv_check_data(struct hci_dev *hdev,
293 struct qca_fw_config *config,
294 u8 *fw_data, size_t fw_size,
295 enum qca_btsoc_type soc_type)
296{
297 const u8 *data;
298 u32 type_len;
299 u16 tag_id, tag_len;
300 int idx, length;
301 struct tlv_type_hdr *tlv;
302 struct tlv_type_patch *tlv_patch;
303 struct tlv_type_nvm *tlv_nvm;
304 uint8_t nvm_baud_rate = config->user_baud_rate;
305 u8 type;
306
307 config->dnld_mode = QCA_SKIP_EVT_NONE;
308 config->dnld_type = QCA_SKIP_EVT_NONE;
309
310 switch (config->type) {
311 case ELF_TYPE_PATCH:
312 if (fw_size < 7)
313 return -EINVAL;
314
315 config->dnld_mode = QCA_SKIP_EVT_VSE_CC;
316 config->dnld_type = QCA_SKIP_EVT_VSE_CC;
317
318 bt_dev_dbg(hdev, "File Class : 0x%x", fw_data[4]);
319 bt_dev_dbg(hdev, "Data Encoding : 0x%x", fw_data[5]);
320 bt_dev_dbg(hdev, "File version : 0x%x", fw_data[6]);
321 break;
322 case TLV_TYPE_PATCH:
323 if (fw_size < sizeof(struct tlv_type_hdr) + sizeof(struct tlv_type_patch))
324 return -EINVAL;
325
326 tlv = (struct tlv_type_hdr *)fw_data;
327 type_len = le32_to_cpu(tlv->type_len);
328 tlv_patch = (struct tlv_type_patch *)tlv->data;
329
330 /* For Rome version 1.1 to 3.1, all segment commands
331 * are acked by a vendor specific event (VSE).
332 * For Rome >= 3.2, the download mode field indicates
333 * if VSE is skipped by the controller.
334 * In case VSE is skipped, only the last segment is acked.
335 */
336 config->dnld_mode = tlv_patch->download_mode;
337 config->dnld_type = config->dnld_mode;
338
339 BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
340 BT_DBG("Total Length : %d bytes",
341 le32_to_cpu(tlv_patch->total_size));
342 BT_DBG("Patch Data Length : %d bytes",
343 le32_to_cpu(tlv_patch->data_length));
344 BT_DBG("Signing Format Version : 0x%x",
345 tlv_patch->format_version);
346 BT_DBG("Signature Algorithm : 0x%x",
347 tlv_patch->signature);
348 BT_DBG("Download mode : 0x%x",
349 tlv_patch->download_mode);
350 BT_DBG("Reserved : 0x%x",
351 tlv_patch->reserved1);
352 BT_DBG("Product ID : 0x%04x",
353 le16_to_cpu(tlv_patch->product_id));
354 BT_DBG("Rom Build Version : 0x%04x",
355 le16_to_cpu(tlv_patch->rom_build));
356 BT_DBG("Patch Version : 0x%04x",
357 le16_to_cpu(tlv_patch->patch_version));
358 BT_DBG("Reserved : 0x%x",
359 le16_to_cpu(tlv_patch->reserved2));
360 BT_DBG("Patch Entry Address : 0x%x",
361 le32_to_cpu(tlv_patch->entry));
362 break;
363
364 case TLV_TYPE_NVM:
365 if (fw_size < sizeof(struct tlv_type_hdr))
366 return -EINVAL;
367
368 tlv = (struct tlv_type_hdr *)fw_data;
369
370 type_len = le32_to_cpu(tlv->type_len);
371 length = type_len >> 8;
372 type = type_len & 0xff;
373
374 /* Some NVM files have more than one set of tags, only parse
375 * the first set when it has type 2 for now. When there is
376 * more than one set there is an enclosing header of type 4.
377 */
378 if (type == 4) {
379 if (fw_size < 2 * sizeof(struct tlv_type_hdr))
380 return -EINVAL;
381
382 tlv++;
383
384 type_len = le32_to_cpu(tlv->type_len);
385 length = type_len >> 8;
386 type = type_len & 0xff;
387 }
388
389 BT_DBG("TLV Type\t\t : 0x%x", type);
390 BT_DBG("Length\t\t : %d bytes", length);
391
392 if (type != 2)
393 break;
394
395 if (fw_size < length + (tlv->data - fw_data))
396 return -EINVAL;
397
398 idx = 0;
399 data = tlv->data;
400 while (idx < length - sizeof(struct tlv_type_nvm)) {
401 tlv_nvm = (struct tlv_type_nvm *)(data + idx);
402
403 tag_id = le16_to_cpu(tlv_nvm->tag_id);
404 tag_len = le16_to_cpu(tlv_nvm->tag_len);
405
406 if (length < idx + sizeof(struct tlv_type_nvm) + tag_len)
407 return -EINVAL;
408
409 /* Update NVM tags as needed */
410 switch (tag_id) {
411 case EDL_TAG_ID_BD_ADDR:
412 if (tag_len != sizeof(bdaddr_t))
413 return -EINVAL;
414
415 memcpy(&config->bdaddr, tlv_nvm->data, sizeof(bdaddr_t));
416
417 break;
418
419 case EDL_TAG_ID_HCI:
420 if (tag_len < 3)
421 return -EINVAL;
422
423 /* HCI transport layer parameters
424 * enabling software inband sleep
425 * onto controller side.
426 */
427 tlv_nvm->data[0] |= 0x80;
428
429 /* UART Baud Rate */
430 if (soc_type >= QCA_WCN3991)
431 tlv_nvm->data[1] = nvm_baud_rate;
432 else
433 tlv_nvm->data[2] = nvm_baud_rate;
434
435 break;
436
437 case EDL_TAG_ID_DEEP_SLEEP:
438 if (tag_len < 1)
439 return -EINVAL;
440
441 /* Sleep enable mask
442 * enabling deep sleep feature on controller.
443 */
444 tlv_nvm->data[0] |= 0x01;
445
446 break;
447 }
448
449 idx += sizeof(struct tlv_type_nvm) + tag_len;
450 }
451 break;
452
453 default:
454 BT_ERR("Unknown TLV type %d", config->type);
455 return -EINVAL;
456 }
457
458 return 0;
459}
460
461static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
462 const u8 *data, enum qca_tlv_dnld_mode mode,
463 enum qca_btsoc_type soc_type)
464{
465 struct sk_buff *skb;
466 struct edl_event_hdr *edl;
467 struct tlv_seg_resp *tlv_resp;
468 u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
469 int err = 0;
470 u8 event_type = HCI_EV_VENDOR;
471 u8 rlen = (sizeof(*edl) + sizeof(*tlv_resp));
472 u8 rtype = EDL_TVL_DNLD_RES_EVT;
473
474 cmd[0] = EDL_PATCH_TLV_REQ_CMD;
475 cmd[1] = seg_size;
476 memcpy(cmd + 2, data, seg_size);
477
478 if (mode == QCA_SKIP_EVT_VSE_CC || mode == QCA_SKIP_EVT_VSE)
479 return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
480 cmd);
481
482 /* Unlike other SoC's sending version command response as payload to
483 * VSE event. WCN3991 sends version command response as a payload to
484 * command complete event.
485 */
486 if (soc_type >= QCA_WCN3991) {
487 event_type = 0;
488 rlen = sizeof(*edl);
489 rtype = EDL_PATCH_TLV_REQ_CMD;
490 }
491
492 skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
493 event_type, HCI_INIT_TIMEOUT);
494 if (IS_ERR(skb)) {
495 err = PTR_ERR(skb);
496 bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
497 return err;
498 }
499
500 if (skb->len != rlen) {
501 bt_dev_err(hdev, "QCA TLV response size mismatch");
502 err = -EILSEQ;
503 goto out;
504 }
505
506 edl = (struct edl_event_hdr *)(skb->data);
507 if (!edl) {
508 bt_dev_err(hdev, "TLV with no header");
509 err = -EILSEQ;
510 goto out;
511 }
512
513 if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != rtype) {
514 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x",
515 edl->cresp, edl->rtype);
516 err = -EIO;
517 }
518
519 if (soc_type >= QCA_WCN3991)
520 goto out;
521
522 tlv_resp = (struct tlv_seg_resp *)(edl->data);
523 if (tlv_resp->result) {
524 bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
525 edl->cresp, edl->rtype, tlv_resp->result);
526 }
527
528out:
529 kfree_skb(skb);
530
531 return err;
532}
533
534static int qca_inject_cmd_complete_event(struct hci_dev *hdev)
535{
536 struct hci_event_hdr *hdr;
537 struct hci_ev_cmd_complete *evt;
538 struct sk_buff *skb;
539
540 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
541 if (!skb)
542 return -ENOMEM;
543
544 hdr = skb_put(skb, sizeof(*hdr));
545 hdr->evt = HCI_EV_CMD_COMPLETE;
546 hdr->plen = sizeof(*evt) + 1;
547
548 evt = skb_put(skb, sizeof(*evt));
549 evt->ncmd = 1;
550 evt->opcode = cpu_to_le16(QCA_HCI_CC_OPCODE);
551
552 skb_put_u8(skb, QCA_HCI_CC_SUCCESS);
553
554 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
555
556 return hci_recv_frame(hdev, skb);
557}
558
559static int qca_download_firmware(struct hci_dev *hdev,
560 struct qca_fw_config *config,
561 enum qca_btsoc_type soc_type,
562 u8 rom_ver)
563{
564 const struct firmware *fw;
565 u8 *data;
566 const u8 *segment;
567 int ret, size, remain, i = 0;
568
569 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
570
571 ret = request_firmware(&fw, config->fwname, &hdev->dev);
572 if (ret) {
573 /* For WCN6750, if mbn file is not present then check for
574 * tlv file.
575 */
576 if (soc_type == QCA_WCN6750 && config->type == ELF_TYPE_PATCH) {
577 bt_dev_dbg(hdev, "QCA Failed to request file: %s (%d)",
578 config->fwname, ret);
579 config->type = TLV_TYPE_PATCH;
580 snprintf(config->fwname, sizeof(config->fwname),
581 "qca/msbtfw%02x.tlv", rom_ver);
582 bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
583 ret = request_firmware(&fw, config->fwname, &hdev->dev);
584 if (ret) {
585 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
586 config->fwname, ret);
587 return ret;
588 }
589 } else {
590 bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
591 config->fwname, ret);
592 return ret;
593 }
594 }
595
596 size = fw->size;
597 data = vmalloc(fw->size);
598 if (!data) {
599 bt_dev_err(hdev, "QCA Failed to allocate memory for file: %s",
600 config->fwname);
601 release_firmware(fw);
602 return -ENOMEM;
603 }
604
605 memcpy(data, fw->data, size);
606 release_firmware(fw);
607
608 ret = qca_tlv_check_data(hdev, config, data, size, soc_type);
609 if (ret)
610 goto out;
611
612 segment = data;
613 remain = size;
614 while (remain > 0) {
615 int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
616
617 bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
618
619 remain -= segsize;
620 /* The last segment is always acked regardless download mode */
621 if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
622 config->dnld_mode = QCA_SKIP_EVT_NONE;
623
624 ret = qca_tlv_send_segment(hdev, segsize, segment,
625 config->dnld_mode, soc_type);
626 if (ret)
627 goto out;
628
629 segment += segsize;
630 }
631
632 /* Latest qualcomm chipsets are not sending a command complete event
633 * for every fw packet sent. They only respond with a vendor specific
634 * event for the last packet. This optimization in the chip will
635 * decrease the BT in initialization time. Here we will inject a command
636 * complete event to avoid a command timeout error message.
637 */
638 if (config->dnld_type == QCA_SKIP_EVT_VSE_CC ||
639 config->dnld_type == QCA_SKIP_EVT_VSE)
640 ret = qca_inject_cmd_complete_event(hdev);
641
642out:
643 vfree(data);
644
645 return ret;
646}
647
648static int qca_disable_soc_logging(struct hci_dev *hdev)
649{
650 struct sk_buff *skb;
651 u8 cmd[2];
652 int err;
653
654 cmd[0] = QCA_DISABLE_LOGGING_SUB_OP;
655 cmd[1] = 0x00;
656 skb = __hci_cmd_sync_ev(hdev, QCA_DISABLE_LOGGING, sizeof(cmd), cmd,
657 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
658 if (IS_ERR(skb)) {
659 err = PTR_ERR(skb);
660 bt_dev_err(hdev, "QCA Failed to disable soc logging(%d)", err);
661 return err;
662 }
663
664 kfree_skb(skb);
665
666 return 0;
667}
668
669int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
670{
671 struct sk_buff *skb;
672 u8 cmd[9];
673 int err;
674
675 cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
676 cmd[1] = 0x02; /* TAG ID */
677 cmd[2] = sizeof(bdaddr_t); /* size */
678 memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
679 skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
680 HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
681 if (IS_ERR(skb)) {
682 err = PTR_ERR(skb);
683 bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
684 return err;
685 }
686
687 kfree_skb(skb);
688
689 return 0;
690}
691EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
692
693static int qca_check_bdaddr(struct hci_dev *hdev, const struct qca_fw_config *config)
694{
695 struct hci_rp_read_bd_addr *bda;
696 struct sk_buff *skb;
697 int err;
698
699 if (bacmp(&hdev->public_addr, BDADDR_ANY))
700 return 0;
701
702 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
703 HCI_INIT_TIMEOUT);
704 if (IS_ERR(skb)) {
705 err = PTR_ERR(skb);
706 bt_dev_err(hdev, "Failed to read device address (%d)", err);
707 return err;
708 }
709
710 if (skb->len != sizeof(*bda)) {
711 bt_dev_err(hdev, "Device address length mismatch");
712 kfree_skb(skb);
713 return -EIO;
714 }
715
716 bda = (struct hci_rp_read_bd_addr *)skb->data;
717 if (!bacmp(&bda->bdaddr, &config->bdaddr))
718 set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
719
720 kfree_skb(skb);
721
722 return 0;
723}
724
725static void qca_generate_hsp_nvm_name(char *fwname, size_t max_size,
726 struct qca_btsoc_version ver, u8 rom_ver, u16 bid)
727{
728 const char *variant;
729
730 /* hsp gf chip */
731 if ((le32_to_cpu(ver.soc_id) & QCA_HSP_GF_SOC_MASK) == QCA_HSP_GF_SOC_ID)
732 variant = "g";
733 else
734 variant = "";
735
736 if (bid == 0x0)
737 snprintf(fwname, max_size, "qca/hpnv%02x%s.bin", rom_ver, variant);
738 else
739 snprintf(fwname, max_size, "qca/hpnv%02x%s.%x", rom_ver, variant, bid);
740}
741
742int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
743 enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
744 const char *firmware_name)
745{
746 struct qca_fw_config config = {};
747 int err;
748 u8 rom_ver = 0;
749 u32 soc_ver;
750 u16 boardid = 0;
751
752 bt_dev_dbg(hdev, "QCA setup on UART");
753
754 soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
755
756 bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
757
758 config.user_baud_rate = baudrate;
759
760 /* Firmware files to download are based on ROM version.
761 * ROM version is derived from last two bytes of soc_ver.
762 */
763 if (soc_type == QCA_WCN3988)
764 rom_ver = ((soc_ver & 0x00000f00) >> 0x05) | (soc_ver & 0x0000000f);
765 else
766 rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
767
768 if (soc_type == QCA_WCN6750)
769 qca_send_patch_config_cmd(hdev);
770
771 /* Download rampatch file */
772 config.type = TLV_TYPE_PATCH;
773 switch (soc_type) {
774 case QCA_WCN3990:
775 case QCA_WCN3991:
776 case QCA_WCN3998:
777 snprintf(config.fwname, sizeof(config.fwname),
778 "qca/crbtfw%02x.tlv", rom_ver);
779 break;
780 case QCA_WCN3988:
781 snprintf(config.fwname, sizeof(config.fwname),
782 "qca/apbtfw%02x.tlv", rom_ver);
783 break;
784 case QCA_QCA2066:
785 snprintf(config.fwname, sizeof(config.fwname),
786 "qca/hpbtfw%02x.tlv", rom_ver);
787 break;
788 case QCA_QCA6390:
789 snprintf(config.fwname, sizeof(config.fwname),
790 "qca/htbtfw%02x.tlv", rom_ver);
791 break;
792 case QCA_WCN6750:
793 /* Choose mbn file by default.If mbn file is not found
794 * then choose tlv file
795 */
796 config.type = ELF_TYPE_PATCH;
797 snprintf(config.fwname, sizeof(config.fwname),
798 "qca/msbtfw%02x.mbn", rom_ver);
799 break;
800 case QCA_WCN6855:
801 snprintf(config.fwname, sizeof(config.fwname),
802 "qca/hpbtfw%02x.tlv", rom_ver);
803 break;
804 case QCA_WCN7850:
805 snprintf(config.fwname, sizeof(config.fwname),
806 "qca/hmtbtfw%02x.tlv", rom_ver);
807 break;
808 default:
809 snprintf(config.fwname, sizeof(config.fwname),
810 "qca/rampatch_%08x.bin", soc_ver);
811 }
812
813 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
814 if (err < 0) {
815 bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
816 return err;
817 }
818
819 /* Give the controller some time to get ready to receive the NVM */
820 msleep(10);
821
822 if (soc_type == QCA_QCA2066)
823 qca_read_fw_board_id(hdev, &boardid);
824
825 /* Download NVM configuration */
826 config.type = TLV_TYPE_NVM;
827 if (firmware_name) {
828 snprintf(config.fwname, sizeof(config.fwname),
829 "qca/%s", firmware_name);
830 } else {
831 switch (soc_type) {
832 case QCA_WCN3990:
833 case QCA_WCN3991:
834 case QCA_WCN3998:
835 if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
836 snprintf(config.fwname, sizeof(config.fwname),
837 "qca/crnv%02xu.bin", rom_ver);
838 } else {
839 snprintf(config.fwname, sizeof(config.fwname),
840 "qca/crnv%02x.bin", rom_ver);
841 }
842 break;
843 case QCA_WCN3988:
844 snprintf(config.fwname, sizeof(config.fwname),
845 "qca/apnv%02x.bin", rom_ver);
846 break;
847 case QCA_QCA2066:
848 qca_generate_hsp_nvm_name(config.fwname,
849 sizeof(config.fwname), ver, rom_ver, boardid);
850 break;
851 case QCA_QCA6390:
852 snprintf(config.fwname, sizeof(config.fwname),
853 "qca/htnv%02x.bin", rom_ver);
854 break;
855 case QCA_WCN6750:
856 snprintf(config.fwname, sizeof(config.fwname),
857 "qca/msnv%02x.bin", rom_ver);
858 break;
859 case QCA_WCN6855:
860 snprintf(config.fwname, sizeof(config.fwname),
861 "qca/hpnv%02x.bin", rom_ver);
862 break;
863 case QCA_WCN7850:
864 snprintf(config.fwname, sizeof(config.fwname),
865 "qca/hmtnv%02x.bin", rom_ver);
866 break;
867
868 default:
869 snprintf(config.fwname, sizeof(config.fwname),
870 "qca/nvm_%08x.bin", soc_ver);
871 }
872 }
873
874 err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
875 if (err < 0) {
876 bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
877 return err;
878 }
879
880 switch (soc_type) {
881 case QCA_WCN3991:
882 case QCA_QCA2066:
883 case QCA_QCA6390:
884 case QCA_WCN6750:
885 case QCA_WCN6855:
886 case QCA_WCN7850:
887 err = qca_disable_soc_logging(hdev);
888 if (err < 0)
889 return err;
890 break;
891 default:
892 break;
893 }
894
895 /* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the
896 * VsMsftOpCode.
897 */
898 switch (soc_type) {
899 case QCA_WCN3988:
900 case QCA_WCN3990:
901 case QCA_WCN3991:
902 case QCA_WCN3998:
903 case QCA_WCN6750:
904 hci_set_msft_opcode(hdev, 0xFD70);
905 break;
906 default:
907 break;
908 }
909
910 /* Perform HCI reset */
911 err = qca_send_reset(hdev);
912 if (err < 0) {
913 bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
914 return err;
915 }
916
917 switch (soc_type) {
918 case QCA_WCN3991:
919 case QCA_WCN6750:
920 case QCA_WCN6855:
921 case QCA_WCN7850:
922 /* get fw build info */
923 err = qca_read_fw_build_info(hdev);
924 if (err < 0)
925 return err;
926 break;
927 default:
928 break;
929 }
930
931 err = qca_check_bdaddr(hdev, &config);
932 if (err)
933 return err;
934
935 bt_dev_info(hdev, "QCA setup on UART is completed");
936
937 return 0;
938}
939EXPORT_SYMBOL_GPL(qca_uart_setup);
940
941int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
942{
943 bdaddr_t bdaddr_swapped;
944 struct sk_buff *skb;
945 int err;
946
947 baswap(&bdaddr_swapped, bdaddr);
948
949 skb = __hci_cmd_sync_ev(hdev, EDL_WRITE_BD_ADDR_OPCODE, 6,
950 &bdaddr_swapped, HCI_EV_VENDOR,
951 HCI_INIT_TIMEOUT);
952 if (IS_ERR(skb)) {
953 err = PTR_ERR(skb);
954 bt_dev_err(hdev, "QCA Change address cmd failed (%d)", err);
955 return err;
956 }
957
958 kfree_skb(skb);
959
960 return 0;
961}
962EXPORT_SYMBOL_GPL(qca_set_bdaddr);
963
964
965MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
966MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
967MODULE_VERSION(VERSION);
968MODULE_LICENSE("GPL");