[mirror_ubuntu-eoan-kernel.git] / drivers / bluetooth / btqca.c

/*
 *  Bluetooth supports for Qualcomm Atheros chips
 *
 *  Copyright (c) 2015 The Linux Foundation. All rights reserved.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2
 *  as published by the Free Software Foundation
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#include <linux/module.h>
#include <linux/firmware.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "btqca.h"

#define VERSION "0.1"

int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version)
{
	struct sk_buff *skb;
	struct edl_event_hdr *edl;
	struct rome_version *ver;
	char cmd;
	int err = 0;

	bt_dev_dbg(hdev, "QCA Version Request");

	cmd = EDL_PATCH_VER_REQ_CMD;
	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
				&cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
		err = PTR_ERR(skb);
		bt_dev_err(hdev, "Reading QCA version information failed (%d)",
			   err);
		return err;
	}

	if (skb->len != sizeof(*edl) + sizeof(*ver)) {
		bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
		err = -EILSEQ;
		goto out;
	}

	edl = (struct edl_event_hdr *)(skb->data);
	if (!edl) {
		bt_dev_err(hdev, "QCA TLV with no header");
		err = -EILSEQ;
		goto out;
	}

	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
	    edl->rtype != EDL_APP_VER_RES_EVT) {
		bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
			   edl->rtype);
		err = -EIO;
		goto out;
	}

	ver = (struct rome_version *)(edl->data);

	BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
	BT_DBG("%s: Patch  :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
	BT_DBG("%s: ROM    :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
	BT_DBG("%s: SOC    :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));

	/* QCA chipset version can be decided by patch and SoC
	 * version, combination with upper 2 bytes from SoC
	 * and lower 2 bytes from patch will be used.
	 */
	*soc_version = (le32_to_cpu(ver->soc_id) << 16) |
			(le16_to_cpu(ver->rome_ver) & 0x0000ffff);
	if (*soc_version == 0)
		err = -EILSEQ;

out:
	kfree_skb(skb);
	if (err)
		bt_dev_err(hdev, "QCA Failed to get version (%d)", err);

	return err;
}
EXPORT_SYMBOL_GPL(qca_read_soc_version);

static int qca_send_reset(struct hci_dev *hdev)
{
	struct sk_buff *skb;
	int err;

	bt_dev_dbg(hdev, "QCA HCI_RESET");

	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
		err = PTR_ERR(skb);
		bt_dev_err(hdev, "QCA Reset failed (%d)", err);
		return err;
	}

	kfree_skb(skb);

	return 0;
}

static void qca_tlv_check_data(struct rome_config *config,
				const struct firmware *fw)
{
	const u8 *data;
	u32 type_len;
	u16 tag_id, tag_len;
	int idx, length;
	struct tlv_type_hdr *tlv;
	struct tlv_type_patch *tlv_patch;
	struct tlv_type_nvm *tlv_nvm;

	tlv = (struct tlv_type_hdr *)fw->data;

	type_len = le32_to_cpu(tlv->type_len);
	length = (type_len >> 8) & 0x00ffffff;

	BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
	BT_DBG("Length\t\t : %d bytes", length);

	config->dnld_mode = ROME_SKIP_EVT_NONE;

	switch (config->type) {
	case TLV_TYPE_PATCH:
		tlv_patch = (struct tlv_type_patch *)tlv->data;

		/* For Rome version 1.1 to 3.1, all segment commands
		 * are acked by a vendor specific event (VSE).
		 * For Rome >= 3.2, the download mode field indicates
		 * if VSE is skipped by the controller.
		 * In case VSE is skipped, only the last segment is acked.
		 */
		config->dnld_mode = tlv_patch->download_mode;

		BT_DBG("Total Length           : %d bytes",
		       le32_to_cpu(tlv_patch->total_size));
		BT_DBG("Patch Data Length      : %d bytes",
		       le32_to_cpu(tlv_patch->data_length));
		BT_DBG("Signing Format Version : 0x%x",
		       tlv_patch->format_version);
		BT_DBG("Signature Algorithm    : 0x%x",
		       tlv_patch->signature);
		BT_DBG("Download mode          : 0x%x",
		       tlv_patch->download_mode);
		BT_DBG("Reserved               : 0x%x",
		       tlv_patch->reserved1);
		BT_DBG("Product ID             : 0x%04x",
		       le16_to_cpu(tlv_patch->product_id));
		BT_DBG("Rom Build Version      : 0x%04x",
		       le16_to_cpu(tlv_patch->rom_build));
		BT_DBG("Patch Version          : 0x%04x",
		       le16_to_cpu(tlv_patch->patch_version));
		BT_DBG("Reserved               : 0x%x",
		       le16_to_cpu(tlv_patch->reserved2));
		BT_DBG("Patch Entry Address    : 0x%x",
		       le32_to_cpu(tlv_patch->entry));
		break;

	case TLV_TYPE_NVM:
		idx = 0;
		data = tlv->data;
		while (idx < length) {
			tlv_nvm = (struct tlv_type_nvm *)(data + idx);

			tag_id = le16_to_cpu(tlv_nvm->tag_id);
			tag_len = le16_to_cpu(tlv_nvm->tag_len);

			/* Update NVM tags as needed */
			switch (tag_id) {
			case EDL_TAG_ID_HCI:
				/* HCI transport layer parameters
				 * enabling software inband sleep
				 * onto controller side.
				 */
				tlv_nvm->data[0] |= 0x80;

				/* UART Baud Rate */
				tlv_nvm->data[2] = config->user_baud_rate;

				break;

			case EDL_TAG_ID_DEEP_SLEEP:
				/* Sleep enable mask
				 * enabling deep sleep feature on controller.
				 */
				tlv_nvm->data[0] |= 0x01;

				break;
			}

			idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
		}
		break;

	default:
		BT_ERR("Unknown TLV type %d", config->type);
		break;
	}
}

static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
				 const u8 *data, enum rome_tlv_dnld_mode mode)
{
	struct sk_buff *skb;
	struct edl_event_hdr *edl;
	struct tlv_seg_resp *tlv_resp;
	u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
	int err = 0;

	cmd[0] = EDL_PATCH_TLV_REQ_CMD;
	cmd[1] = seg_size;
	memcpy(cmd + 2, data, seg_size);

	if (mode == ROME_SKIP_EVT_VSE_CC || mode == ROME_SKIP_EVT_VSE)
		return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
				      cmd);

	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
				HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
		err = PTR_ERR(skb);
		bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
		return err;
	}

	if (skb->len != sizeof(*edl) + sizeof(*tlv_resp)) {
		bt_dev_err(hdev, "QCA TLV response size mismatch");
		err = -EILSEQ;
		goto out;
	}

	edl = (struct edl_event_hdr *)(skb->data);
	if (!edl) {
		bt_dev_err(hdev, "TLV with no header");
		err = -EILSEQ;
		goto out;
	}

	tlv_resp = (struct tlv_seg_resp *)(edl->data);

	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
	    edl->rtype != EDL_TVL_DNLD_RES_EVT || tlv_resp->result != 0x00) {
		bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
			   edl->cresp, edl->rtype, tlv_resp->result);
		err = -EIO;
	}

out:
	kfree_skb(skb);

	return err;
}

static int qca_download_firmware(struct hci_dev *hdev,
				  struct rome_config *config)
{
	const struct firmware *fw;
	const u8 *segment;
	int ret, remain, i = 0;

	bt_dev_info(hdev, "QCA Downloading %s", config->fwname);

	ret = request_firmware(&fw, config->fwname, &hdev->dev);
	if (ret) {
		bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
			   config->fwname, ret);
		return ret;
	}

	qca_tlv_check_data(config, fw);

	segment = fw->data;
	remain = fw->size;
	while (remain > 0) {
		int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);

		bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);

		remain -= segsize;
		/* The last segment is always acked regardless download mode */
		if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT)
			config->dnld_mode = ROME_SKIP_EVT_NONE;

		ret = qca_tlv_send_segment(hdev, segsize, segment,
					    config->dnld_mode);
		if (ret)
			break;

		segment += segsize;
	}

	release_firmware(fw);

	return ret;
}

int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
{
	struct sk_buff *skb;
	u8 cmd[9];
	int err;

	cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
	cmd[1] = 0x02; 			/* TAG ID */
	cmd[2] = sizeof(bdaddr_t);	/* size */
	memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
	skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
				HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
		err = PTR_ERR(skb);
		bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
		return err;
	}

	kfree_skb(skb);

	return 0;
}
EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);

int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
		   enum qca_btsoc_type soc_type, u32 soc_ver)
{
	struct rome_config config;
	int err;
	u8 rom_ver;

	bt_dev_dbg(hdev, "QCA setup on UART");

	config.user_baud_rate = baudrate;

	/* Download rampatch file */
	config.type = TLV_TYPE_PATCH;
	if (soc_type == QCA_WCN3990) {
		/* Firmware files to download are based on ROM version.
		 * ROM version is derived from last two bytes of soc_ver.
		 */
		rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
			    (soc_ver & 0x0000000f);
		snprintf(config.fwname, sizeof(config.fwname),
			 "qca/crbtfw%02x.tlv", rom_ver);
	} else {
		snprintf(config.fwname, sizeof(config.fwname),
			 "qca/rampatch_%08x.bin", soc_ver);
	}

	err = qca_download_firmware(hdev, &config);
	if (err < 0) {
		bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
		return err;
	}

	/* Download NVM configuration */
	config.type = TLV_TYPE_NVM;
	if (soc_type == QCA_WCN3990)
		snprintf(config.fwname, sizeof(config.fwname),
			 "qca/crnv%02x.bin", rom_ver);
	else
		snprintf(config.fwname, sizeof(config.fwname),
			 "qca/nvm_%08x.bin", soc_ver);

	err = qca_download_firmware(hdev, &config);
	if (err < 0) {
		bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
		return err;
	}

	/* Perform HCI reset */
	err = qca_send_reset(hdev);
	if (err < 0) {
		bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
		return err;
	}

	bt_dev_info(hdev, "QCA setup on UART is completed");

	return 0;
}
EXPORT_SYMBOL_GPL(qca_uart_setup);

MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
Commit	Line	Data
83e81961 BYTK	1	/*
	2	* Bluetooth supports for Qualcomm Atheros chips
	3	*
	4	* Copyright (c) 2015 The Linux Foundation. All rights reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2
	8	* as published by the Free Software Foundation
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	18	*
	19	*/
	20	#include <linux/module.h>
	21	#include <linux/firmware.h>
	22
	23	#include <net/bluetooth/bluetooth.h>
	24	#include <net/bluetooth/hci_core.h>
	25
	26	#include "btqca.h"
	27
	28	#define VERSION "0.1"
	29
ba493d4f	30	int qca_read_soc_version(struct hci_dev hdev, u32 soc_version)
83e81961 BYTK	31	{
	32	struct sk_buff *skb;
	33	struct edl_event_hdr *edl;
	34	struct rome_version *ver;
	35	char cmd;
	36	int err = 0;
	37
ba493d4f	38	bt_dev_dbg(hdev, "QCA Version Request");
83e81961 BYTK	39
	40	cmd = EDL_PATCH_VER_REQ_CMD;
	41	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
e4cc5a18	42	&cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
83e81961 BYTK	43	if (IS_ERR(skb)) {
83e81961 BYTK	44	err = PTR_ERR(skb);
ba493d4f BG	45	bt_dev_err(hdev, "Reading QCA version information failed (%d)",
ba493d4f BG	46	err);
83e81961 BYTK	47	return err;
	48	}
	49
	50	if (skb->len != sizeof(edl) + sizeof(ver)) {
ba493d4f	51	bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len);
83e81961 BYTK	52	err = -EILSEQ;
	53	goto out;
	54	}
	55
	56	edl = (struct edl_event_hdr *)(skb->data);
0676cab4	57	if (!edl) {
ba493d4f	58	bt_dev_err(hdev, "QCA TLV with no header");
83e81961 BYTK	59	err = -EILSEQ;
	60	goto out;
	61	}
	62
	63	if (edl->cresp != EDL_CMD_REQ_RES_EVT \|\|
	64	edl->rtype != EDL_APP_VER_RES_EVT) {
ba493d4f BG	65	bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
ba493d4f BG	66	edl->rtype);
83e81961 BYTK	67	err = -EIO;
	68	goto out;
	69	}
	70
	71	ver = (struct rome_version *)(edl->data);
	72
	73	BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
	74	BT_DBG("%s: Patch :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
	75	BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
	76	BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
	77
ba493d4f	78	/* QCA chipset version can be decided by patch and SoC
83e81961 BYTK	79	* version, combination with upper 2 bytes from SoC
	80	* and lower 2 bytes from patch will be used.
	81	*/
ba493d4f	82	*soc_version = (le32_to_cpu(ver->soc_id) << 16) \|
2193a980	83	(le16_to_cpu(ver->rome_ver) & 0x0000ffff);
aadebac4 BG	84	if (*soc_version == 0)
aadebac4 BG	85	err = -EILSEQ;
83e81961 BYTK	86
	87	out:
	88	kfree_skb(skb);
aadebac4 BG	89	if (err)
aadebac4 BG	90	bt_dev_err(hdev, "QCA Failed to get version (%d)", err);
83e81961 BYTK	91
	92	return err;
	93	}
ba493d4f	94	EXPORT_SYMBOL_GPL(qca_read_soc_version);
83e81961	95
ba493d4f	96	static int qca_send_reset(struct hci_dev *hdev)
83e81961 BYTK	97	{
	98	struct sk_buff *skb;
	99	int err;
	100
ba493d4f	101	bt_dev_dbg(hdev, "QCA HCI_RESET");
83e81961 BYTK	102
	103	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
	104	if (IS_ERR(skb)) {
	105	err = PTR_ERR(skb);
ba493d4f	106	bt_dev_err(hdev, "QCA Reset failed (%d)", err);
83e81961 BYTK	107	return err;
	108	}
	109
	110	kfree_skb(skb);
	111
	112	return 0;
	113	}
	114
ba493d4f	115	static void qca_tlv_check_data(struct rome_config *config,
83e81961 BYTK	116	const struct firmware *fw)
	117	{
	118	const u8 *data;
	119	u32 type_len;
	120	u16 tag_id, tag_len;
	121	int idx, length;
	122	struct tlv_type_hdr *tlv;
	123	struct tlv_type_patch *tlv_patch;
	124	struct tlv_type_nvm *tlv_nvm;
	125
	126	tlv = (struct tlv_type_hdr *)fw->data;
	127
	128	type_len = le32_to_cpu(tlv->type_len);
	129	length = (type_len >> 8) & 0x00ffffff;
	130
	131	BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
	132	BT_DBG("Length\t\t : %d bytes", length);
	133
6e03126a LP	134	config->dnld_mode = ROME_SKIP_EVT_NONE;
6e03126a LP	135
83e81961 BYTK	136	switch (config->type) {
	137	case TLV_TYPE_PATCH:
	138	tlv_patch = (struct tlv_type_patch *)tlv->data;
6e03126a LP	139
	140	/* For Rome version 1.1 to 3.1, all segment commands
	141	* are acked by a vendor specific event (VSE).
	142	* For Rome >= 3.2, the download mode field indicates
	143	* if VSE is skipped by the controller.
	144	* In case VSE is skipped, only the last segment is acked.
	145	*/
	146	config->dnld_mode = tlv_patch->download_mode;
	147
	148	BT_DBG("Total Length : %d bytes",
83e81961	149	le32_to_cpu(tlv_patch->total_size));
6e03126a	150	BT_DBG("Patch Data Length : %d bytes",
83e81961 BYTK	151	le32_to_cpu(tlv_patch->data_length));
	152	BT_DBG("Signing Format Version : 0x%x",
	153	tlv_patch->format_version);
6e03126a	154	BT_DBG("Signature Algorithm : 0x%x",
83e81961	155	tlv_patch->signature);
6e03126a LP	156	BT_DBG("Download mode : 0x%x",
	157	tlv_patch->download_mode);
	158	BT_DBG("Reserved : 0x%x",
	159	tlv_patch->reserved1);
	160	BT_DBG("Product ID : 0x%04x",
83e81961	161	le16_to_cpu(tlv_patch->product_id));
6e03126a	162	BT_DBG("Rom Build Version : 0x%04x",
83e81961	163	le16_to_cpu(tlv_patch->rom_build));
6e03126a	164	BT_DBG("Patch Version : 0x%04x",
83e81961	165	le16_to_cpu(tlv_patch->patch_version));
6e03126a	166	BT_DBG("Reserved : 0x%x",
83e81961	167	le16_to_cpu(tlv_patch->reserved2));
6e03126a	168	BT_DBG("Patch Entry Address : 0x%x",
83e81961 BYTK	169	le32_to_cpu(tlv_patch->entry));
	170	break;
	171
	172	case TLV_TYPE_NVM:
	173	idx = 0;
	174	data = tlv->data;
	175	while (idx < length) {
	176	tlv_nvm = (struct tlv_type_nvm *)(data + idx);
	177
	178	tag_id = le16_to_cpu(tlv_nvm->tag_id);
	179	tag_len = le16_to_cpu(tlv_nvm->tag_len);
	180
	181	/* Update NVM tags as needed */
	182	switch (tag_id) {
	183	case EDL_TAG_ID_HCI:
	184	/* HCI transport layer parameters
	185	* enabling software inband sleep
	186	* onto controller side.
	187	*/
	188	tlv_nvm->data[0] \|= 0x80;
	189
	190	/* UART Baud Rate */
	191	tlv_nvm->data[2] = config->user_baud_rate;
	192
	193	break;
	194
	195	case EDL_TAG_ID_DEEP_SLEEP:
	196	/* Sleep enable mask
	197	* enabling deep sleep feature on controller.
	198	*/
	199	tlv_nvm->data[0] \|= 0x01;
	200
	201	break;
	202	}
	203
	204	idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
	205	}
	206	break;
	207
	208	default:
	209	BT_ERR("Unknown TLV type %d", config->type);
	210	break;
	211	}
	212	}
	213
ba493d4f	214	static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size,
6e03126a	215	const u8 *data, enum rome_tlv_dnld_mode mode)
83e81961 BYTK	216	{
	217	struct sk_buff *skb;
	218	struct edl_event_hdr *edl;
	219	struct tlv_seg_resp *tlv_resp;
	220	u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
	221	int err = 0;
	222
83e81961 BYTK	223	cmd[0] = EDL_PATCH_TLV_REQ_CMD;
	224	cmd[1] = seg_size;
	225	memcpy(cmd + 2, data, seg_size);
	226
6e03126a LP	227	if (mode == ROME_SKIP_EVT_VSE_CC \|\| mode == ROME_SKIP_EVT_VSE)
	228	return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
	229	cmd);
	230
83e81961	231	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
e4cc5a18	232	HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
83e81961 BYTK	233	if (IS_ERR(skb)) {
83e81961 BYTK	234	err = PTR_ERR(skb);
ba493d4f	235	bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err);
83e81961 BYTK	236	return err;
	237	}
	238
	239	if (skb->len != sizeof(edl) + sizeof(tlv_resp)) {
ba493d4f	240	bt_dev_err(hdev, "QCA TLV response size mismatch");
83e81961 BYTK	241	err = -EILSEQ;
	242	goto out;
	243	}
	244
	245	edl = (struct edl_event_hdr *)(skb->data);
0676cab4	246	if (!edl) {
ba493d4f	247	bt_dev_err(hdev, "TLV with no header");
83e81961 BYTK	248	err = -EILSEQ;
	249	goto out;
	250	}
	251
	252	tlv_resp = (struct tlv_seg_resp *)(edl->data);
	253
	254	if (edl->cresp != EDL_CMD_REQ_RES_EVT \|\|
	255	edl->rtype != EDL_TVL_DNLD_RES_EVT \|\| tlv_resp->result != 0x00) {
ba493d4f BG	256	bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)",
ba493d4f BG	257	edl->cresp, edl->rtype, tlv_resp->result);
83e81961 BYTK	258	err = -EIO;
	259	}
	260
	261	out:
	262	kfree_skb(skb);
	263
	264	return err;
	265	}
	266
ba493d4f	267	static int qca_download_firmware(struct hci_dev *hdev,
83e81961 BYTK	268	struct rome_config *config)
	269	{
	270	const struct firmware *fw;
6e03126a LP	271	const u8 *segment;
6e03126a LP	272	int ret, remain, i = 0;
83e81961	273
ba493d4f	274	bt_dev_info(hdev, "QCA Downloading %s", config->fwname);
83e81961 BYTK	275
	276	ret = request_firmware(&fw, config->fwname, &hdev->dev);
	277	if (ret) {
ba493d4f BG	278	bt_dev_err(hdev, "QCA Failed to request file: %s (%d)",
ba493d4f BG	279	config->fwname, ret);
83e81961 BYTK	280	return ret;
	281	}
	282
ba493d4f	283	qca_tlv_check_data(config, fw);
83e81961	284
6e03126a LP	285	segment = fw->data;
	286	remain = fw->size;
	287	while (remain > 0) {
	288	int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
	289
	290	bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
	291
	292	remain -= segsize;
	293	/* The last segment is always acked regardless download mode */
	294	if (!remain \|\| segsize < MAX_SIZE_PER_TLV_SEGMENT)
	295	config->dnld_mode = ROME_SKIP_EVT_NONE;
	296
ba493d4f	297	ret = qca_tlv_send_segment(hdev, segsize, segment,
6e03126a LP	298	config->dnld_mode);
	299	if (ret)
	300	break;
	301
	302	segment += segsize;
83e81961 BYTK	303	}
	304
	305	release_firmware(fw);
	306
	307	return ret;
	308	}
	309
	310	int qca_set_bdaddr_rome(struct hci_dev hdev, const bdaddr_t bdaddr)
	311	{
	312	struct sk_buff *skb;
	313	u8 cmd[9];
	314	int err;
	315
	316	cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
	317	cmd[1] = 0x02; /* TAG ID */
	318	cmd[2] = sizeof(bdaddr_t); /* size */
	319	memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
	320	skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
e4cc5a18	321	HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
83e81961 BYTK	322	if (IS_ERR(skb)) {
83e81961 BYTK	323	err = PTR_ERR(skb);
ba493d4f	324	bt_dev_err(hdev, "QCA Change address command failed (%d)", err);
83e81961 BYTK	325	return err;
	326	}
	327
	328	kfree_skb(skb);
	329
	330	return 0;
	331	}
	332	EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
	333
aadebac4 BG	334	int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
aadebac4 BG	335	enum qca_btsoc_type soc_type, u32 soc_ver)
83e81961	336	{
83e81961 BYTK	337	struct rome_config config;
83e81961 BYTK	338	int err;
4219d468	339	u8 rom_ver;
83e81961	340
ba493d4f	341	bt_dev_dbg(hdev, "QCA setup on UART");
83e81961 BYTK	342
	343	config.user_baud_rate = baudrate;
	344
83e81961 BYTK	345	/* Download rampatch file */
83e81961 BYTK	346	config.type = TLV_TYPE_PATCH;
4219d468 BG	347	if (soc_type == QCA_WCN3990) {
	348	/* Firmware files to download are based on ROM version.
	349	* ROM version is derived from last two bytes of soc_ver.
	350	*/
	351	rom_ver = ((soc_ver & 0x00000f00) >> 0x04) \|
	352	(soc_ver & 0x0000000f);
	353	snprintf(config.fwname, sizeof(config.fwname),
	354	"qca/crbtfw%02x.tlv", rom_ver);
	355	} else {
	356	snprintf(config.fwname, sizeof(config.fwname),
	357	"qca/rampatch_%08x.bin", soc_ver);
	358	}
	359
ba493d4f	360	err = qca_download_firmware(hdev, &config);
83e81961	361	if (err < 0) {
ba493d4f	362	bt_dev_err(hdev, "QCA Failed to download patch (%d)", err);
83e81961 BYTK	363	return err;
	364	}
	365
	366	/* Download NVM configuration */
	367	config.type = TLV_TYPE_NVM;
4219d468 BG	368	if (soc_type == QCA_WCN3990)
	369	snprintf(config.fwname, sizeof(config.fwname),
	370	"qca/crnv%02x.bin", rom_ver);
	371	else
	372	snprintf(config.fwname, sizeof(config.fwname),
	373	"qca/nvm_%08x.bin", soc_ver);
	374
ba493d4f	375	err = qca_download_firmware(hdev, &config);
83e81961	376	if (err < 0) {
ba493d4f	377	bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err);
83e81961 BYTK	378	return err;
	379	}
	380
	381	/* Perform HCI reset */
ba493d4f	382	err = qca_send_reset(hdev);
83e81961	383	if (err < 0) {
ba493d4f	384	bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err);
83e81961 BYTK	385	return err;
	386	}
	387
ba493d4f	388	bt_dev_info(hdev, "QCA setup on UART is completed");
83e81961 BYTK	389
	390	return 0;
	391	}
ba493d4f	392	EXPORT_SYMBOL_GPL(qca_uart_setup);
83e81961 BYTK	393
	394	MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
	395	MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
	396	MODULE_VERSION(VERSION);
	397	MODULE_LICENSE("GPL");