[linux-2.6-block.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"

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);

	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 rome_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_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_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, "ROME Downloading %s", 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);

	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 = rome_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_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_dev_info(hdev, "ROME controller version 0x%08x", 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_dev_info(hdev, "ROME setup on UART is completed");

	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");
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
	30	static int rome_patch_ver_req(struct hci_dev hdev, u32 rome_version)
	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
	38	BT_DBG("%s: ROME Patch Version Request", hdev->name);
	39
	40	cmd = EDL_PATCH_VER_REQ_CMD;
	41	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
	42	&cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
	43	if (IS_ERR(skb)) {
	44	err = PTR_ERR(skb);
	45	BT_ERR("%s: Failed to read version of ROME (%d)", hdev->name,
	46	err);
	47	return err;
	48	}
	49
	50	if (skb->len != sizeof(edl) + sizeof(ver)) {
	51	BT_ERR("%s: Version size mismatch len %d", hdev->name,
	52	skb->len);
	53	err = -EILSEQ;
	54	goto out;
	55	}
	56
	57	edl = (struct edl_event_hdr *)(skb->data);
0676cab4 CIK	58	if (!edl) {
0676cab4 CIK	59	BT_ERR("%s: TLV with no header", hdev->name);
83e81961 BYTK	60	err = -EILSEQ;
	61	goto out;
	62	}
	63
	64	if (edl->cresp != EDL_CMD_REQ_RES_EVT \|\|
	65	edl->rtype != EDL_APP_VER_RES_EVT) {
	66	BT_ERR("%s: Wrong packet received %d %d", hdev->name,
	67	edl->cresp, edl->rtype);
	68	err = -EIO;
	69	goto out;
	70	}
	71
	72	ver = (struct rome_version *)(edl->data);
	73
	74	BT_DBG("%s: Product:0x%08x", hdev->name, le32_to_cpu(ver->product_id));
	75	BT_DBG("%s: Patch :0x%08x", hdev->name, le16_to_cpu(ver->patch_ver));
	76	BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver));
	77	BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id));
	78
	79	/* ROME chipset version can be decided by patch and SoC
	80	* version, combination with upper 2 bytes from SoC
	81	* and lower 2 bytes from patch will be used.
	82	*/
	83	*rome_version = (le32_to_cpu(ver->soc_id) << 16) \|
2193a980	84	(le16_to_cpu(ver->rome_ver) & 0x0000ffff);
83e81961 BYTK	85
	86	out:
	87	kfree_skb(skb);
	88
	89	return err;
	90	}
	91
	92	static int rome_reset(struct hci_dev *hdev)
	93	{
	94	struct sk_buff *skb;
	95	int err;
	96
	97	BT_DBG("%s: ROME HCI_RESET", hdev->name);
	98
	99	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
	100	if (IS_ERR(skb)) {
	101	err = PTR_ERR(skb);
	102	BT_ERR("%s: Reset failed (%d)", hdev->name, err);
	103	return err;
	104	}
	105
	106	kfree_skb(skb);
	107
	108	return 0;
	109	}
	110
	111	static void rome_tlv_check_data(struct rome_config *config,
	112	const struct firmware *fw)
	113	{
	114	const u8 *data;
	115	u32 type_len;
	116	u16 tag_id, tag_len;
	117	int idx, length;
	118	struct tlv_type_hdr *tlv;
	119	struct tlv_type_patch *tlv_patch;
	120	struct tlv_type_nvm *tlv_nvm;
	121
	122	tlv = (struct tlv_type_hdr *)fw->data;
	123
	124	type_len = le32_to_cpu(tlv->type_len);
	125	length = (type_len >> 8) & 0x00ffffff;
	126
	127	BT_DBG("TLV Type\t\t : 0x%x", type_len & 0x000000ff);
	128	BT_DBG("Length\t\t : %d bytes", length);
	129
6e03126a LP	130	config->dnld_mode = ROME_SKIP_EVT_NONE;
6e03126a LP	131
83e81961 BYTK	132	switch (config->type) {
	133	case TLV_TYPE_PATCH:
	134	tlv_patch = (struct tlv_type_patch *)tlv->data;
6e03126a LP	135
	136	/* For Rome version 1.1 to 3.1, all segment commands
	137	* are acked by a vendor specific event (VSE).
	138	* For Rome >= 3.2, the download mode field indicates
	139	* if VSE is skipped by the controller.
	140	* In case VSE is skipped, only the last segment is acked.
	141	*/
	142	config->dnld_mode = tlv_patch->download_mode;
	143
	144	BT_DBG("Total Length : %d bytes",
83e81961	145	le32_to_cpu(tlv_patch->total_size));
6e03126a	146	BT_DBG("Patch Data Length : %d bytes",
83e81961 BYTK	147	le32_to_cpu(tlv_patch->data_length));
	148	BT_DBG("Signing Format Version : 0x%x",
	149	tlv_patch->format_version);
6e03126a	150	BT_DBG("Signature Algorithm : 0x%x",
83e81961	151	tlv_patch->signature);
6e03126a LP	152	BT_DBG("Download mode : 0x%x",
	153	tlv_patch->download_mode);
	154	BT_DBG("Reserved : 0x%x",
	155	tlv_patch->reserved1);
	156	BT_DBG("Product ID : 0x%04x",
83e81961	157	le16_to_cpu(tlv_patch->product_id));
6e03126a	158	BT_DBG("Rom Build Version : 0x%04x",
83e81961	159	le16_to_cpu(tlv_patch->rom_build));
6e03126a	160	BT_DBG("Patch Version : 0x%04x",
83e81961	161	le16_to_cpu(tlv_patch->patch_version));
6e03126a	162	BT_DBG("Reserved : 0x%x",
83e81961	163	le16_to_cpu(tlv_patch->reserved2));
6e03126a	164	BT_DBG("Patch Entry Address : 0x%x",
83e81961 BYTK	165	le32_to_cpu(tlv_patch->entry));
	166	break;
	167
	168	case TLV_TYPE_NVM:
	169	idx = 0;
	170	data = tlv->data;
	171	while (idx < length) {
	172	tlv_nvm = (struct tlv_type_nvm *)(data + idx);
	173
	174	tag_id = le16_to_cpu(tlv_nvm->tag_id);
	175	tag_len = le16_to_cpu(tlv_nvm->tag_len);
	176
	177	/* Update NVM tags as needed */
	178	switch (tag_id) {
	179	case EDL_TAG_ID_HCI:
	180	/* HCI transport layer parameters
	181	* enabling software inband sleep
	182	* onto controller side.
	183	*/
	184	tlv_nvm->data[0] \|= 0x80;
	185
	186	/* UART Baud Rate */
	187	tlv_nvm->data[2] = config->user_baud_rate;
	188
	189	break;
	190
	191	case EDL_TAG_ID_DEEP_SLEEP:
	192	/* Sleep enable mask
	193	* enabling deep sleep feature on controller.
	194	*/
	195	tlv_nvm->data[0] \|= 0x01;
	196
	197	break;
	198	}
	199
	200	idx += (sizeof(u16) + sizeof(u16) + 8 + tag_len);
	201	}
	202	break;
	203
	204	default:
	205	BT_ERR("Unknown TLV type %d", config->type);
	206	break;
	207	}
	208	}
	209
6e03126a LP	210	static int rome_tlv_send_segment(struct hci_dev *hdev, int seg_size,
6e03126a LP	211	const u8 *data, enum rome_tlv_dnld_mode mode)
83e81961 BYTK	212	{
	213	struct sk_buff *skb;
	214	struct edl_event_hdr *edl;
	215	struct tlv_seg_resp *tlv_resp;
	216	u8 cmd[MAX_SIZE_PER_TLV_SEGMENT + 2];
	217	int err = 0;
	218
83e81961 BYTK	219	cmd[0] = EDL_PATCH_TLV_REQ_CMD;
	220	cmd[1] = seg_size;
	221	memcpy(cmd + 2, data, seg_size);
	222
6e03126a LP	223	if (mode == ROME_SKIP_EVT_VSE_CC \|\| mode == ROME_SKIP_EVT_VSE)
	224	return __hci_cmd_send(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2,
	225	cmd);
	226
83e81961 BYTK	227	skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, seg_size + 2, cmd,
	228	HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
	229	if (IS_ERR(skb)) {
	230	err = PTR_ERR(skb);
	231	BT_ERR("%s: Failed to send TLV segment (%d)", hdev->name, err);
	232	return err;
	233	}
	234
	235	if (skb->len != sizeof(edl) + sizeof(tlv_resp)) {
	236	BT_ERR("%s: TLV response size mismatch", hdev->name);
	237	err = -EILSEQ;
	238	goto out;
	239	}
	240
	241	edl = (struct edl_event_hdr *)(skb->data);
0676cab4 CIK	242	if (!edl) {
0676cab4 CIK	243	BT_ERR("%s: TLV with no header", hdev->name);
83e81961 BYTK	244	err = -EILSEQ;
	245	goto out;
	246	}
	247
	248	tlv_resp = (struct tlv_seg_resp *)(edl->data);
	249
	250	if (edl->cresp != EDL_CMD_REQ_RES_EVT \|\|
	251	edl->rtype != EDL_TVL_DNLD_RES_EVT \|\| tlv_resp->result != 0x00) {
	252	BT_ERR("%s: TLV with error stat 0x%x rtype 0x%x (0x%x)",
	253	hdev->name, edl->cresp, edl->rtype, tlv_resp->result);
	254	err = -EIO;
	255	}
	256
	257	out:
	258	kfree_skb(skb);
	259
	260	return err;
	261	}
	262
83e81961 BYTK	263	static int rome_download_firmware(struct hci_dev *hdev,
	264	struct rome_config *config)
	265	{
	266	const struct firmware *fw;
6e03126a LP	267	const u8 *segment;
6e03126a LP	268	int ret, remain, i = 0;
83e81961	269
2064ee33	270	bt_dev_info(hdev, "ROME Downloading %s", config->fwname);
83e81961 BYTK	271
	272	ret = request_firmware(&fw, config->fwname, &hdev->dev);
	273	if (ret) {
	274	BT_ERR("%s: Failed to request file: %s (%d)", hdev->name,
	275	config->fwname, ret);
	276	return ret;
	277	}
	278
	279	rome_tlv_check_data(config, fw);
	280
6e03126a LP	281	segment = fw->data;
	282	remain = fw->size;
	283	while (remain > 0) {
	284	int segsize = min(MAX_SIZE_PER_TLV_SEGMENT, remain);
	285
	286	bt_dev_dbg(hdev, "Send segment %d, size %d", i++, segsize);
	287
	288	remain -= segsize;
	289	/* The last segment is always acked regardless download mode */
	290	if (!remain \|\| segsize < MAX_SIZE_PER_TLV_SEGMENT)
	291	config->dnld_mode = ROME_SKIP_EVT_NONE;
	292
	293	ret = rome_tlv_send_segment(hdev, segsize, segment,
	294	config->dnld_mode);
	295	if (ret)
	296	break;
	297
	298	segment += segsize;
83e81961 BYTK	299	}
	300
	301	release_firmware(fw);
	302
	303	return ret;
	304	}
	305
	306	int qca_set_bdaddr_rome(struct hci_dev hdev, const bdaddr_t bdaddr)
	307	{
	308	struct sk_buff *skb;
	309	u8 cmd[9];
	310	int err;
	311
	312	cmd[0] = EDL_NVM_ACCESS_SET_REQ_CMD;
	313	cmd[1] = 0x02; /* TAG ID */
	314	cmd[2] = sizeof(bdaddr_t); /* size */
	315	memcpy(cmd + 3, bdaddr, sizeof(bdaddr_t));
	316	skb = __hci_cmd_sync_ev(hdev, EDL_NVM_ACCESS_OPCODE, sizeof(cmd), cmd,
	317	HCI_VENDOR_PKT, HCI_INIT_TIMEOUT);
	318	if (IS_ERR(skb)) {
	319	err = PTR_ERR(skb);
	320	BT_ERR("%s: Change address command failed (%d)",
	321	hdev->name, err);
	322	return err;
	323	}
	324
	325	kfree_skb(skb);
	326
	327	return 0;
	328	}
	329	EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
	330
	331	int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate)
	332	{
	333	u32 rome_ver = 0;
	334	struct rome_config config;
	335	int err;
	336
	337	BT_DBG("%s: ROME setup on UART", hdev->name);
	338
	339	config.user_baud_rate = baudrate;
	340
	341	/* Get ROME version information */
	342	err = rome_patch_ver_req(hdev, &rome_ver);
	343	if (err < 0 \|\| rome_ver == 0) {
	344	BT_ERR("%s: Failed to get version 0x%x", hdev->name, err);
	345	return err;
	346	}
	347
2064ee33	348	bt_dev_info(hdev, "ROME controller version 0x%08x", rome_ver);
83e81961 BYTK	349
	350	/* Download rampatch file */
	351	config.type = TLV_TYPE_PATCH;
	352	snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.bin",
	353	rome_ver);
	354	err = rome_download_firmware(hdev, &config);
	355	if (err < 0) {
	356	BT_ERR("%s: Failed to download patch (%d)", hdev->name, err);
	357	return err;
	358	}
	359
	360	/* Download NVM configuration */
	361	config.type = TLV_TYPE_NVM;
	362	snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin",
	363	rome_ver);
	364	err = rome_download_firmware(hdev, &config);
	365	if (err < 0) {
	366	BT_ERR("%s: Failed to download NVM (%d)", hdev->name, err);
	367	return err;
	368	}
	369
	370	/* Perform HCI reset */
	371	err = rome_reset(hdev);
	372	if (err < 0) {
	373	BT_ERR("%s: Failed to run HCI_RESET (%d)", hdev->name, err);
	374	return err;
	375	}
	376
2064ee33	377	bt_dev_info(hdev, "ROME setup on UART is completed");
83e81961 BYTK	378
	379	return 0;
	380	}
	381	EXPORT_SYMBOL_GPL(qca_uart_setup_rome);
	382
	383	MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
	384	MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION);
	385	MODULE_VERSION(VERSION);
	386	MODULE_LICENSE("GPL");