xref: /linux/drivers/bluetooth/btqca.c (revision 3652117f854819a148ff0fbe4492587d3520b5e5)
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 
18 int 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 
89 out:
90 	kfree_skb(skb);
91 	if (err)
92 		bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
93 
94 	return err;
95 }
96 EXPORT_SYMBOL_GPL(qca_read_soc_version);
97 
98 static 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 
140 out:
141 	kfree_skb(skb);
142 	return err;
143 }
144 
145 static 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 
184 out:
185 	kfree_skb(skb);
186 	return err;
187 }
188 
189 static 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 
208 static 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 
241 out:
242 	kfree_skb(skb);
243 	return err;
244 }
245 
246 int 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 }
266 EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
267 
268 static 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 
385 static 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 
452 out:
453 	kfree_skb(skb);
454 
455 	return err;
456 }
457 
458 static 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 
483 static 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 
564 out:
565 	vfree(data);
566 
567 	return ret;
568 }
569 
570 static 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 
591 int 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 }
613 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
614 
615 static 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 
632 int 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 }
825 EXPORT_SYMBOL_GPL(qca_uart_setup);
826 
827 int 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 }
844 EXPORT_SYMBOL_GPL(qca_set_bdaddr);
845 
846 
847 MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
848 MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
849 MODULE_VERSION(VERSION);
850 MODULE_LICENSE("GPL");
851