drivers/bluetooth/btqca.c - third_party/linux - Git at Google

 /*
  *  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"

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

 	BT_DBG("%s: ROME Patch Version Request", hdev->name);

 	cmd = EDL_PATCH_VER_REQ_CMD;
 	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
 				&cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		BT_ERR("%s: Failed to read version of ROME (%d)", hdev->name,
 		       err);
 		return err;
 	}

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

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

 	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
 	    edl->rtype != EDL_APP_VER_RES_EVT) {
 		BT_ERR("%s: Wrong packet received %d %d", hdev->name,
 		       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));

 	/* ROME 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.
 	 */
 	*rome_version = (le32_to_cpu(ver->soc_id) << 16) |
 		        (le16_to_cpu(ver->rome_ver) & 0x0000ffff);

 out:
 	kfree_skb(skb);

 	return err;
 }

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

 	BT_DBG("%s: ROME HCI_RESET", hdev->name);

 	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		BT_ERR("%s: Reset failed (%d)", hdev->name, err);
 		return err;
 	}

 	kfree_skb(skb);

 	return 0;
 }

 static void rome_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);

 	switch (config->type) {
 	case TLV_TYPE_PATCH:
 		tlv_patch = (struct tlv_type_patch *)tlv->data;
 		BT_DBG("Total Length\t\t : %d bytes",
 		       le32_to_cpu(tlv_patch->total_size));
 		BT_DBG("Patch Data Length\t : %d bytes",
 		       le32_to_cpu(tlv_patch->data_length));
 		BT_DBG("Signing Format Version : 0x%x",
 		       tlv_patch->format_version);
 		BT_DBG("Signature Algorithm\t : 0x%x",
 		       tlv_patch->signature);
 		BT_DBG("Reserved\t\t : 0x%x",
 		       le16_to_cpu(tlv_patch->reserved1));
 		BT_DBG("Product ID\t\t : 0x%04x",
 		       le16_to_cpu(tlv_patch->product_id));
 		BT_DBG("Rom Build Version\t : 0x%04x",
 		       le16_to_cpu(tlv_patch->rom_build));
 		BT_DBG("Patch Version\t\t : 0x%04x",
 		       le16_to_cpu(tlv_patch->patch_version));
 		BT_DBG("Reserved\t\t : 0x%x",
 		       le16_to_cpu(tlv_patch->reserved2));
 		BT_DBG("Patch Entry Address\t : 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 rome_tlv_send_segment(struct hci_dev *hdev, int idx, int seg_size,
 				 const u8 *data)
 {
 	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;

 	BT_DBG("%s: Download segment #%d size %d", hdev->name, idx, seg_size);

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

 	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
 				HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		BT_ERR("%s: Failed to send TLV segment (%d)", hdev->name, err);
 		return err;
 	}

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

 	edl = (struct edl_event_hdr *)(skb->data);
 	if (!edl) {
 		BT_ERR("%s: TLV with no header", hdev->name);
 		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_ERR("%s: TLV with error stat 0x%x rtype 0x%x (0x%x)",
 		       hdev->name, edl->cresp, edl->rtype, tlv_resp->result);
 		err = -EIO;
 	}

 out:
 	kfree_skb(skb);

 	return err;
 }

 static int rome_tlv_download_request(struct hci_dev *hdev,
 				     const struct firmware *fw)
 {
 	const u8 *buffer, *data;
 	int total_segment, remain_size;
 	int ret, i;

 	if (!fw || !fw->data)
 		return -EINVAL;

 	total_segment = fw->size / MAX_SIZE_PER_TLV_SEGMENT;
 	remain_size = fw->size % MAX_SIZE_PER_TLV_SEGMENT;

 	BT_DBG("%s: Total segment num %d remain size %d total size %zu",
 	       hdev->name, total_segment, remain_size, fw->size);

 	data = fw->data;
 	for (i = 0; i < total_segment; i++) {
 		buffer = data + i * MAX_SIZE_PER_TLV_SEGMENT;
 		ret = rome_tlv_send_segment(hdev, i, MAX_SIZE_PER_TLV_SEGMENT,
 					    buffer);
 		if (ret < 0)
 			return -EIO;
 	}

 	if (remain_size) {
 		buffer = data + total_segment * MAX_SIZE_PER_TLV_SEGMENT;
 		ret = rome_tlv_send_segment(hdev, total_segment, remain_size,
 					    buffer);
 		if (ret < 0)
 			return -EIO;
 	}

 	return 0;
 }

 static int rome_download_firmware(struct hci_dev *hdev,
 				  struct rome_config *config)
 {
 	const struct firmware *fw;
 	int ret;

 	BT_INFO("%s: ROME Downloading %s", hdev->name, config->fwname);

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

 	rome_tlv_check_data(config, fw);

 	ret = rome_tlv_download_request(hdev, fw);
 	if (ret) {
 		BT_ERR("%s: Failed to download file: %s (%d)", hdev->name,
 		       config->fwname, ret);
 	}

 	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_VENDOR_PKT, HCI_INIT_TIMEOUT);
 	if (IS_ERR(skb)) {
 		err = PTR_ERR(skb);
 		BT_ERR("%s: Change address command failed (%d)",
 		       hdev->name, err);
 		return err;
 	}

 	kfree_skb(skb);

 	return 0;
 }
 EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);

 int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
 {
 	u32 rome_ver = 0;
 	struct rome_config config;
 	int err;

 	BT_DBG("%s: ROME setup on UART", hdev->name);

 	config.user_baud_rate = baudrate;

 	/* Get ROME version information */
 	err = rome_patch_ver_req(hdev, &rome_ver);
 	if (err < 0 || rome_ver == 0) {
 		BT_ERR("%s: Failed to get version 0x%x", hdev->name, err);
 		return err;
 	}

 	BT_INFO("%s: ROME controller version 0x%08x", hdev->name, rome_ver);

 	/* Download rampatch file */
 	config.type = TLV_TYPE_PATCH;
 	snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.bin",
 		 rome_ver);
 	err = rome_download_firmware(hdev, &config);
 	if (err < 0) {
 		BT_ERR("%s: Failed to download patch (%d)", hdev->name, err);
 		return err;
 	}

 	/* Download NVM configuration */
 	config.type = TLV_TYPE_NVM;
 	snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin",
 		 rome_ver);
 	err = rome_download_firmware(hdev, &config);
 	if (err < 0) {
 		BT_ERR("%s: Failed to download NVM (%d)", hdev->name, err);
 		return err;
 	}

 	/* Perform HCI reset */
 	err = rome_reset(hdev);
 	if (err < 0) {
 		BT_ERR("%s: Failed to run HCI_RESET (%d)", hdev->name, err);
 		return err;
 	}

 	BT_INFO("%s: ROME setup on UART is completed", hdev->name);

 	return 0;
 }
 EXPORT_SYMBOL_GPL(qca_uart_setup_rome);

 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");
	/*
	* 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"

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

	BT_DBG("%s: ROME Patch Version Request", hdev->name);

	cmd = EDL_PATCH_VER_REQ_CMD;
	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
	&cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
	err = PTR_ERR(skb);
	BT_ERR("%s: Failed to read version of ROME (%d)", hdev->name,
	err);
	return err;
	}

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

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

	if (edl->cresp != EDL_CMD_REQ_RES_EVT \|\|
	edl->rtype != EDL_APP_VER_RES_EVT) {
	BT_ERR("%s: Wrong packet received %d %d", hdev->name,
	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));

	/* ROME 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.
	*/
	*rome_version = (le32_to_cpu(ver->soc_id) << 16) \|
	(le16_to_cpu(ver->rome_ver) & 0x0000ffff);

	out:
	kfree_skb(skb);

	return err;
	}

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

	BT_DBG("%s: ROME HCI_RESET", hdev->name);

	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
	err = PTR_ERR(skb);
	BT_ERR("%s: Reset failed (%d)", hdev->name, err);
	return err;
	}

	kfree_skb(skb);

	return 0;
	}

	static void rome_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);

	switch (config->type) {
	case TLV_TYPE_PATCH:
	tlv_patch = (struct tlv_type_patch *)tlv->data;
	BT_DBG("Total Length\t\t : %d bytes",
	le32_to_cpu(tlv_patch->total_size));
	BT_DBG("Patch Data Length\t : %d bytes",
	le32_to_cpu(tlv_patch->data_length));
	BT_DBG("Signing Format Version : 0x%x",
	tlv_patch->format_version);
	BT_DBG("Signature Algorithm\t : 0x%x",
	tlv_patch->signature);
	BT_DBG("Reserved\t\t : 0x%x",
	le16_to_cpu(tlv_patch->reserved1));
	BT_DBG("Product ID\t\t : 0x%04x",
	le16_to_cpu(tlv_patch->product_id));
	BT_DBG("Rom Build Version\t : 0x%04x",
	le16_to_cpu(tlv_patch->rom_build));
	BT_DBG("Patch Version\t\t : 0x%04x",
	le16_to_cpu(tlv_patch->patch_version));
	BT_DBG("Reserved\t\t : 0x%x",
	le16_to_cpu(tlv_patch->reserved2));
	BT_DBG("Patch Entry Address\t : 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 rome_tlv_send_segment(struct hci_dev *hdev, int idx, int seg_size,
	const u8 *data)
	{
	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;

	BT_DBG("%s: Download segment #%d size %d", hdev->name, idx, seg_size);

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

	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
	HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
	err = PTR_ERR(skb);
	BT_ERR("%s: Failed to send TLV segment (%d)", hdev->name, err);
	return err;
	}

	if (skb->len != sizeof(edl) + sizeof(tlv_resp)) {
	BT_ERR("%s: TLV response size mismatch", hdev->name);
	err = -EILSEQ;
	goto out;
	}

	edl = (struct edl_event_hdr *)(skb->data);
	if (!edl) {
	BT_ERR("%s: TLV with no header", hdev->name);
	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_ERR("%s: TLV with error stat 0x%x rtype 0x%x (0x%x)",
	hdev->name, edl->cresp, edl->rtype, tlv_resp->result);
	err = -EIO;
	}

	out:
	kfree_skb(skb);

	return err;
	}

	static int rome_tlv_download_request(struct hci_dev *hdev,
	const struct firmware *fw)
	{
	const u8 buffer, data;
	int total_segment, remain_size;
	int ret, i;

	if (!fw \|\| !fw->data)
	return -EINVAL;

	total_segment = fw->size / MAX_SIZE_PER_TLV_SEGMENT;
	remain_size = fw->size % MAX_SIZE_PER_TLV_SEGMENT;

	BT_DBG("%s: Total segment num %d remain size %d total size %zu",
	hdev->name, total_segment, remain_size, fw->size);

	data = fw->data;
	for (i = 0; i < total_segment; i++) {
	buffer = data + i * MAX_SIZE_PER_TLV_SEGMENT;
	ret = rome_tlv_send_segment(hdev, i, MAX_SIZE_PER_TLV_SEGMENT,
	buffer);
	if (ret < 0)
	return -EIO;
	}

	if (remain_size) {
	buffer = data + total_segment * MAX_SIZE_PER_TLV_SEGMENT;
	ret = rome_tlv_send_segment(hdev, total_segment, remain_size,
	buffer);
	if (ret < 0)
	return -EIO;
	}

	return 0;
	}

	static int rome_download_firmware(struct hci_dev *hdev,
	struct rome_config *config)
	{
	const struct firmware *fw;
	int ret;

	BT_INFO("%s: ROME Downloading %s", hdev->name, config->fwname);

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

	rome_tlv_check_data(config, fw);

	ret = rome_tlv_download_request(hdev, fw);
	if (ret) {
	BT_ERR("%s: Failed to download file: %s (%d)", hdev->name,
	config->fwname, ret);
	}

	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_VENDOR_PKT, HCI_INIT_TIMEOUT);
	if (IS_ERR(skb)) {
	err = PTR_ERR(skb);
	BT_ERR("%s: Change address command failed (%d)",
	hdev->name, err);
	return err;
	}

	kfree_skb(skb);

	return 0;
	}
	EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);

	int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
	{
	u32 rome_ver = 0;
	struct rome_config config;
	int err;

	BT_DBG("%s: ROME setup on UART", hdev->name);

	config.user_baud_rate = baudrate;

	/* Get ROME version information */
	err = rome_patch_ver_req(hdev, &rome_ver);
	if (err < 0 \|\| rome_ver == 0) {
	BT_ERR("%s: Failed to get version 0x%x", hdev->name, err);
	return err;
	}

	BT_INFO("%s: ROME controller version 0x%08x", hdev->name, rome_ver);

	/* Download rampatch file */
	config.type = TLV_TYPE_PATCH;
	snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.bin",
	rome_ver);
	err = rome_download_firmware(hdev, &config);
	if (err < 0) {
	BT_ERR("%s: Failed to download patch (%d)", hdev->name, err);
	return err;
	}

	/* Download NVM configuration */
	config.type = TLV_TYPE_NVM;
	snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin",
	rome_ver);
	err = rome_download_firmware(hdev, &config);
	if (err < 0) {
	BT_ERR("%s: Failed to download NVM (%d)", hdev->name, err);
	return err;
	}

	/* Perform HCI reset */
	err = rome_reset(hdev);
	if (err < 0) {
	BT_ERR("%s: Failed to run HCI_RESET (%d)", hdev->name, err);
	return err;
	}

	BT_INFO("%s: ROME setup on UART is completed", hdev->name);

	return 0;
	}
	EXPORT_SYMBOL_GPL(qca_uart_setup_rome);

	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");