[deliverable/linux.git] / drivers / bluetooth / ath3k.c

/*
 * Copyright (c) 2008-2009 Atheros Communications Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/usb.h>
#include <net/bluetooth/bluetooth.h>

#define VERSION "1.0"

#define ATH3K_DNLOAD				0x01
#define ATH3K_GETSTATE				0x05
#define ATH3K_SET_NORMAL_MODE			0x07
#define ATH3K_GETVERSION			0x09
#define USB_REG_SWITCH_VID_PID			0x0a

#define ATH3K_MODE_MASK				0x3F
#define ATH3K_NORMAL_MODE			0x0E

#define ATH3K_PATCH_UPDATE			0x80
#define ATH3K_SYSCFG_UPDATE			0x40

#define ATH3K_XTAL_FREQ_26M			0x00
#define ATH3K_XTAL_FREQ_40M			0x01
#define ATH3K_XTAL_FREQ_19P2			0x02
#define ATH3K_NAME_LEN				0xFF

struct ath3k_version {
	unsigned int	rom_version;
	unsigned int	build_version;
	unsigned int	ram_version;
	unsigned char	ref_clock;
	unsigned char	reserved[0x07];
};

static struct usb_device_id ath3k_table[] = {
	/* Atheros AR3011 */
	{ USB_DEVICE(0x0CF3, 0x3000) },

	/* Atheros AR3011 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x3002) },
	{ USB_DEVICE(0x13d3, 0x3304) },
	{ USB_DEVICE(0x0930, 0x0215) },

	/* Atheros AR9285 Malbec with sflash firmware */
	{ USB_DEVICE(0x03F0, 0x311D) },

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x3004) },

	/* Atheros AR5BBU12 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE02C) },

	{ }	/* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, ath3k_table);

#define BTUSB_ATH3012		0x80
/* This table is to load patch and sysconfig files
 * for AR3012 */
static struct usb_device_id ath3k_blist_tbl[] = {

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },

	{ }	/* Terminating entry */
};

#define USB_REQ_DFU_DNLOAD	1
#define BULK_SIZE		4096
#define FW_HDR_SIZE		20

static int ath3k_load_firmware(struct usb_device *udev,
				const struct firmware *firmware)
{
	u8 *send_buf;
	int err, pipe, len, size, sent = 0;
	int count = firmware->size;

	BT_DBG("udev %p", udev);

	pipe = usb_sndctrlpipe(udev, 0);

	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
	if (!send_buf) {
		BT_ERR("Can't allocate memory chunk for firmware");
		return -ENOMEM;
	}

	memcpy(send_buf, firmware->data, 20);
	if ((err = usb_control_msg(udev, pipe,
				USB_REQ_DFU_DNLOAD,
				USB_TYPE_VENDOR, 0, 0,
				send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
		BT_ERR("Can't change to loading configuration err");
		goto error;
	}
	sent += 20;
	count -= 20;

	while (count) {
		size = min_t(uint, count, BULK_SIZE);
		pipe = usb_sndbulkpipe(udev, 0x02);
		memcpy(send_buf, firmware->data + sent, size);

		err = usb_bulk_msg(udev, pipe, send_buf, size,
					&len, 3000);

		if (err || (len != size)) {
			BT_ERR("Error in firmware loading err = %d,"
				"len = %d, size = %d", err, len, size);
			goto error;
		}

		sent  += size;
		count -= size;
	}

error:
	kfree(send_buf);
	return err;
}

static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
{
	int pipe = 0;

	pipe = usb_rcvctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
			state, 0x01, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_get_version(struct usb_device *udev,
			struct ath3k_version *version)
{
	int pipe = 0;

	pipe = usb_rcvctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
			sizeof(struct ath3k_version),
			USB_CTRL_SET_TIMEOUT);
}

static int ath3k_load_fwfile(struct usb_device *udev,
		const struct firmware *firmware)
{
	u8 *send_buf;
	int err, pipe, len, size, count, sent = 0;
	int ret;

	count = firmware->size;

	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
	if (!send_buf) {
		BT_ERR("Can't allocate memory chunk for firmware");
		return -ENOMEM;
	}

	size = min_t(uint, count, FW_HDR_SIZE);
	memcpy(send_buf, firmware->data, size);

	pipe = usb_sndctrlpipe(udev, 0);
	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
			USB_TYPE_VENDOR, 0, 0, send_buf,
			size, USB_CTRL_SET_TIMEOUT);
	if (ret < 0) {
		BT_ERR("Can't change to loading configuration err");
		kfree(send_buf);
		return ret;
	}

	sent += size;
	count -= size;

	while (count) {
		size = min_t(uint, count, BULK_SIZE);
		pipe = usb_sndbulkpipe(udev, 0x02);

		memcpy(send_buf, firmware->data + sent, size);

		err = usb_bulk_msg(udev, pipe, send_buf, size,
					&len, 3000);
		if (err || (len != size)) {
			BT_ERR("Error in firmware loading err = %d,"
				"len = %d, size = %d", err, len, size);
			kfree(send_buf);
			return err;
		}
		sent  += size;
		count -= size;
	}

	kfree(send_buf);
	return 0;
}

static int ath3k_switch_pid(struct usb_device *udev)
{
	int pipe = 0;

	pipe = usb_sndctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
			USB_TYPE_VENDOR, 0, 0,
			NULL, 0, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_set_normal_mode(struct usb_device *udev)
{
	unsigned char fw_state;
	int pipe = 0, ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to normal mode err");
		return ret;
	}

	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
		BT_DBG("firmware was already in normal mode");
		return 0;
	}

	pipe = usb_sndctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
			USB_TYPE_VENDOR, 0, 0,
			NULL, 0, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_load_patch(struct usb_device *udev)
{
	unsigned char fw_state;
	char filename[ATH3K_NAME_LEN] = {0};
	const struct firmware *firmware;
	struct ath3k_version fw_version, pt_version;
	int ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to load ram patch err");
		return ret;
	}

	if (fw_state & ATH3K_PATCH_UPDATE) {
		BT_DBG("Patch was already downloaded");
		return 0;
	}

	ret = ath3k_get_version(udev, &fw_version);
	if (ret < 0) {
		BT_ERR("Can't get version to change to load ram patch err");
		return ret;
	}

	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
		fw_version.rom_version);

	ret = request_firmware(&firmware, filename, &udev->dev);
	if (ret < 0) {
		BT_ERR("Patch file not found %s", filename);
		return ret;
	}

	pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
	pt_version.build_version = *(int *)
		(firmware->data + firmware->size - 4);

	if ((pt_version.rom_version != fw_version.rom_version) ||
		(pt_version.build_version <= fw_version.build_version)) {
		BT_ERR("Patch file version did not match with firmware");
		release_firmware(firmware);
		return -EINVAL;
	}

	ret = ath3k_load_fwfile(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static int ath3k_load_syscfg(struct usb_device *udev)
{
	unsigned char fw_state;
	char filename[ATH3K_NAME_LEN] = {0};
	const struct firmware *firmware;
	struct ath3k_version fw_version;
	int clk_value, ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to load configration err");
		return -EBUSY;
	}

	ret = ath3k_get_version(udev, &fw_version);
	if (ret < 0) {
		BT_ERR("Can't get version to change to load ram patch err");
		return ret;
	}

	switch (fw_version.ref_clock) {

	case ATH3K_XTAL_FREQ_26M:
		clk_value = 26;
		break;
	case ATH3K_XTAL_FREQ_40M:
		clk_value = 40;
		break;
	case ATH3K_XTAL_FREQ_19P2:
		clk_value = 19;
		break;
	default:
		clk_value = 0;
		break;
	}

	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
		fw_version.rom_version, clk_value, ".dfu");

	ret = request_firmware(&firmware, filename, &udev->dev);
	if (ret < 0) {
		BT_ERR("Configuration file not found %s", filename);
		return ret;
	}

	ret = ath3k_load_fwfile(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static int ath3k_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	const struct firmware *firmware;
	struct usb_device *udev = interface_to_usbdev(intf);
	int ret;

	BT_DBG("intf %p id %p", intf, id);

	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
		return -ENODEV;

	/* match device ID in ath3k blacklist table */
	if (!id->driver_info) {
		const struct usb_device_id *match;
		match = usb_match_id(intf, ath3k_blist_tbl);
		if (match)
			id = match;
	}

	/* load patch and sysconfig files for AR3012 */
	if (id->driver_info & BTUSB_ATH3012) {

		/* New firmware with patch and sysconfig files already loaded */
		if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
			return -ENODEV;

		ret = ath3k_load_patch(udev);
		if (ret < 0) {
			BT_ERR("Loading patch file failed");
			return ret;
		}
		ret = ath3k_load_syscfg(udev);
		if (ret < 0) {
			BT_ERR("Loading sysconfig file failed");
			return ret;
		}
		ret = ath3k_set_normal_mode(udev);
		if (ret < 0) {
			BT_ERR("Set normal mode failed");
			return ret;
		}
		ath3k_switch_pid(udev);
		return 0;
	}

	if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
		BT_ERR("Error loading firmware");
		return -EIO;
	}

	ret = ath3k_load_firmware(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static void ath3k_disconnect(struct usb_interface *intf)
{
	BT_DBG("ath3k_disconnect intf %p", intf);
}

static struct usb_driver ath3k_driver = {
	.name		= "ath3k",
	.probe		= ath3k_probe,
	.disconnect	= ath3k_disconnect,
	.id_table	= ath3k_table,
};

static int __init ath3k_init(void)
{
	BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
	return usb_register(&ath3k_driver);
}

static void __exit ath3k_exit(void)
{
	usb_deregister(&ath3k_driver);
}

module_init(ath3k_init);
module_exit(ath3k_exit);

MODULE_AUTHOR("Atheros Communications");
MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("ath3k-1.fw");
Commit	Line	Data
9670d80a VK	1	/*
	2	* Copyright (c) 2008-2009 Atheros Communications Inc.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*
	18	*/
	19
	20
	21	#include <linux/module.h>
	22	#include <linux/kernel.h>
	23	#include <linux/init.h>
	24	#include <linux/slab.h>
	25	#include <linux/types.h>
	26	#include <linux/errno.h>
	27	#include <linux/device.h>
	28	#include <linux/firmware.h>
	29	#include <linux/usb.h>
	30	#include <net/bluetooth/bluetooth.h>
	31
	32	#define VERSION "1.0"
	33
d9f51b51 BS	34	#define ATH3K_DNLOAD 0x01
	35	#define ATH3K_GETSTATE 0x05
	36	#define ATH3K_SET_NORMAL_MODE 0x07
	37	#define ATH3K_GETVERSION 0x09
	38	#define USB_REG_SWITCH_VID_PID 0x0a
	39
	40	#define ATH3K_MODE_MASK 0x3F
	41	#define ATH3K_NORMAL_MODE 0x0E
	42
	43	#define ATH3K_PATCH_UPDATE 0x80
	44	#define ATH3K_SYSCFG_UPDATE 0x40
	45
	46	#define ATH3K_XTAL_FREQ_26M 0x00
	47	#define ATH3K_XTAL_FREQ_40M 0x01
	48	#define ATH3K_XTAL_FREQ_19P2 0x02
	49	#define ATH3K_NAME_LEN 0xFF
	50
	51	struct ath3k_version {
	52	unsigned int rom_version;
	53	unsigned int build_version;
	54	unsigned int ram_version;
	55	unsigned char ref_clock;
	56	unsigned char reserved[0x07];
	57	};
9670d80a VK	58
	59	static struct usb_device_id ath3k_table[] = {
	60	/* Atheros AR3011 */
	61	{ USB_DEVICE(0x0CF3, 0x3000) },
be93112a BS	62
	63	/* Atheros AR3011 with sflash firmware*/
	64	{ USB_DEVICE(0x0CF3, 0x3002) },
2a7bcccc	65	{ USB_DEVICE(0x13d3, 0x3304) },
8e7c3d2e	66	{ USB_DEVICE(0x0930, 0x0215) },
be93112a	67
509e7861 CYC	68	/* Atheros AR9285 Malbec with sflash firmware */
509e7861 CYC	69	{ USB_DEVICE(0x03F0, 0x311D) },
d9f51b51 BS	70
	71	/* Atheros AR3012 with sflash firmware*/
	72	{ USB_DEVICE(0x0CF3, 0x3004) },
	73
e9036e33 CYC	74	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	75	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	76
9670d80a VK	77	{ } /* Terminating entry */
	78	};
	79
	80	MODULE_DEVICE_TABLE(usb, ath3k_table);
	81
d9f51b51 BS	82	#define BTUSB_ATH3012 0x80
	83	/* This table is to load patch and sysconfig files
	84	* for AR3012 */
	85	static struct usb_device_id ath3k_blist_tbl[] = {
	86
	87	/* Atheros AR3012 with sflash firmware*/
	88	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	89
	90	{ } /* Terminating entry */
	91	};
	92
9670d80a VK	93	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	94	#define BULK_SIZE 4096
d9f51b51	95	#define FW_HDR_SIZE 20
9670d80a	96
86e09287 AH	97	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	98	const struct firmware *firmware)
9670d80a VK	99	{
	100	u8 *send_buf;
	101	int err, pipe, len, size, sent = 0;
86e09287	102	int count = firmware->size;
9670d80a	103
86e09287	104	BT_DBG("udev %p", udev);
9670d80a	105
86e09287	106	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	107
0ba22bb2	108	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	109	if (!send_buf) {
	110	BT_ERR("Can't allocate memory chunk for firmware");
	111	return -ENOMEM;
	112	}
	113
	114	memcpy(send_buf, firmware->data, 20);
	115	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	116	USB_REQ_DFU_DNLOAD,
9670d80a VK	117	USB_TYPE_VENDOR, 0, 0,
86e09287	118	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	119	BT_ERR("Can't change to loading configuration err");
86e09287	120	goto error;
9670d80a VK	121	}
	122	sent += 20;
	123	count -= 20;
	124
9670d80a VK	125	while (count) {
9670d80a VK	126	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	127	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	128	memcpy(send_buf, firmware->data + sent, size);
9670d80a	129
86e09287	130	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	131	&len, 3000);
	132
	133	if (err \|\| (len != size)) {
	134	BT_ERR("Error in firmware loading err = %d,"
	135	"len = %d, size = %d", err, len, size);
	136	goto error;
	137	}
	138
	139	sent += size;
	140	count -= size;
	141	}
	142
9670d80a VK	143	error:
	144	kfree(send_buf);
	145	return err;
	146	}
	147
d9f51b51 BS	148	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	149	{
	150	int pipe = 0;
	151
	152	pipe = usb_rcvctrlpipe(udev, 0);
	153	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	154	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	155	state, 0x01, USB_CTRL_SET_TIMEOUT);
	156	}
	157
	158	static int ath3k_get_version(struct usb_device *udev,
	159	struct ath3k_version *version)
	160	{
	161	int pipe = 0;
	162
	163	pipe = usb_rcvctrlpipe(udev, 0);
	164	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	165	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	166	sizeof(struct ath3k_version),
	167	USB_CTRL_SET_TIMEOUT);
	168	}
	169
	170	static int ath3k_load_fwfile(struct usb_device *udev,
	171	const struct firmware *firmware)
	172	{
	173	u8 *send_buf;
	174	int err, pipe, len, size, count, sent = 0;
	175	int ret;
	176
	177	count = firmware->size;
	178
0ba22bb2	179	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	180	if (!send_buf) {
	181	BT_ERR("Can't allocate memory chunk for firmware");
	182	return -ENOMEM;
	183	}
	184
	185	size = min_t(uint, count, FW_HDR_SIZE);
	186	memcpy(send_buf, firmware->data, size);
	187
	188	pipe = usb_sndctrlpipe(udev, 0);
	189	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	190	USB_TYPE_VENDOR, 0, 0, send_buf,
	191	size, USB_CTRL_SET_TIMEOUT);
	192	if (ret < 0) {
	193	BT_ERR("Can't change to loading configuration err");
	194	kfree(send_buf);
	195	return ret;
	196	}
	197
	198	sent += size;
	199	count -= size;
	200
	201	while (count) {
	202	size = min_t(uint, count, BULK_SIZE);
	203	pipe = usb_sndbulkpipe(udev, 0x02);
	204
	205	memcpy(send_buf, firmware->data + sent, size);
	206
	207	err = usb_bulk_msg(udev, pipe, send_buf, size,
	208	&len, 3000);
	209	if (err \|\| (len != size)) {
	210	BT_ERR("Error in firmware loading err = %d,"
	211	"len = %d, size = %d", err, len, size);
	212	kfree(send_buf);
	213	return err;
	214	}
	215	sent += size;
	216	count -= size;
	217	}
	218
	219	kfree(send_buf);
	220	return 0;
	221	}
	222
	223	static int ath3k_switch_pid(struct usb_device *udev)
	224	{
	225	int pipe = 0;
	226
	227	pipe = usb_sndctrlpipe(udev, 0);
	228	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	229	USB_TYPE_VENDOR, 0, 0,
	230	NULL, 0, USB_CTRL_SET_TIMEOUT);
	231	}
	232
	233	static int ath3k_set_normal_mode(struct usb_device *udev)
	234	{
	235	unsigned char fw_state;
	236	int pipe = 0, ret;
	237
	238	ret = ath3k_get_state(udev, &fw_state);
	239	if (ret < 0) {
	240	BT_ERR("Can't get state to change to normal mode err");
	241	return ret;
	242	}
	243
244	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
245	BT_DBG("firmware was already in normal mode");
246	return 0;
247	}
248
249	pipe = usb_sndctrlpipe(udev, 0);
250	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
251	USB_TYPE_VENDOR, 0, 0,
252	NULL, 0, USB_CTRL_SET_TIMEOUT);
253	}
254
255	static int ath3k_load_patch(struct usb_device *udev)
256	{
257	unsigned char fw_state;
258	char filename[ATH3K_NAME_LEN] = {0};
259	const struct firmware *firmware;
260	struct ath3k_version fw_version, pt_version;
261	int ret;
262
263	ret = ath3k_get_state(udev, &fw_state);
264	if (ret < 0) {
265	BT_ERR("Can't get state to change to load ram patch err");
266	return ret;
267	}
268
269	if (fw_state & ATH3K_PATCH_UPDATE) {
270	BT_DBG("Patch was already downloaded");
271	return 0;
272	}
273
274	ret = ath3k_get_version(udev, &fw_version);
275	if (ret < 0) {
276	BT_ERR("Can't get version to change to load ram patch err");
277	return ret;
278	}
279
280	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
281	fw_version.rom_version);
282
283	ret = request_firmware(&firmware, filename, &udev->dev);
284	if (ret < 0) {
285	BT_ERR("Patch file not found %s", filename);
286	return ret;
287	}
288
289	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
290	pt_version.build_version = (int )
291	(firmware->data + firmware->size - 4);
292
293	if ((pt_version.rom_version != fw_version.rom_version) \|\|
294	(pt_version.build_version <= fw_version.build_version)) {
295	BT_ERR("Patch file version did not match with firmware");
296	release_firmware(firmware);
297	return -EINVAL;
298	}
299
300	ret = ath3k_load_fwfile(udev, firmware);
301	release_firmware(firmware);
302
303	return ret;
304	}
305
306	static int ath3k_load_syscfg(struct usb_device *udev)
307	{
308	unsigned char fw_state;
309	char filename[ATH3K_NAME_LEN] = {0};
310	const struct firmware *firmware;
311	struct ath3k_version fw_version;
312	int clk_value, ret;
313
314	ret = ath3k_get_state(udev, &fw_state);
315	if (ret < 0) {
316	BT_ERR("Can't get state to change to load configration err");
317	return -EBUSY;
318	}
319
320	ret = ath3k_get_version(udev, &fw_version);
321	if (ret < 0) {
322	BT_ERR("Can't get version to change to load ram patch err");
323	return ret;
324	}
325
326	switch (fw_version.ref_clock) {
327
328	case ATH3K_XTAL_FREQ_26M:
329	clk_value = 26;
330	break;
331	case ATH3K_XTAL_FREQ_40M:
332	clk_value = 40;
333	break;
334	case ATH3K_XTAL_FREQ_19P2:
335	clk_value = 19;
336	break;
337	default:
338	clk_value = 0;
339	break;
340	}
341
342	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
343	fw_version.rom_version, clk_value, ".dfu");
344
345	ret = request_firmware(&firmware, filename, &udev->dev);
346	if (ret < 0) {
347	BT_ERR("Configuration file not found %s", filename);
348	return ret;
349	}
350
351	ret = ath3k_load_fwfile(udev, firmware);
352	release_firmware(firmware);
353
354	return ret;
355	}
356
9670d80a VK	357	static int ath3k_probe(struct usb_interface *intf,
	358	const struct usb_device_id *id)
	359	{
	360	const struct firmware *firmware;
	361	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	362	int ret;
9670d80a VK	363
	364	BT_DBG("intf %p id %p", intf, id);
	365
	366	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	367	return -ENODEV;
	368
d9f51b51 BS	369	/* match device ID in ath3k blacklist table */
	370	if (!id->driver_info) {
	371	const struct usb_device_id *match;
	372	match = usb_match_id(intf, ath3k_blist_tbl);
	373	if (match)
	374	id = match;
	375	}
	376
	377	/* load patch and sysconfig files for AR3012 */
	378	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	379
	380	/* New firmware with patch and sysconfig files already loaded */
	381	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	382	return -ENODEV;
	383
d9f51b51 BS	384	ret = ath3k_load_patch(udev);
	385	if (ret < 0) {
	386	BT_ERR("Loading patch file failed");
	387	return ret;
	388	}
	389	ret = ath3k_load_syscfg(udev);
	390	if (ret < 0) {
	391	BT_ERR("Loading sysconfig file failed");
	392	return ret;
	393	}
	394	ret = ath3k_set_normal_mode(udev);
	395	if (ret < 0) {
	396	BT_ERR("Set normal mode failed");
	397	return ret;
	398	}
	399	ath3k_switch_pid(udev);
	400	return 0;
	401	}
	402
9670d80a	403	if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
d9f51b51	404	BT_ERR("Error loading firmware");
9670d80a VK	405	return -EIO;
	406	}
	407
84f0e17f	408	ret = ath3k_load_firmware(udev, firmware);
86e09287	409	release_firmware(firmware);
9670d80a	410
84f0e17f	411	return ret;
9670d80a VK	412	}
	413
	414	static void ath3k_disconnect(struct usb_interface *intf)
	415	{
9670d80a	416	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	417	}
	418
	419	static struct usb_driver ath3k_driver = {
	420	.name = "ath3k",
	421	.probe = ath3k_probe,
	422	.disconnect = ath3k_disconnect,
	423	.id_table = ath3k_table,
	424	};
	425
	426	static int __init ath3k_init(void)
	427	{
	428	BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
	429	return usb_register(&ath3k_driver);
	430	}
	431
	432	static void __exit ath3k_exit(void)
	433	{
	434	usb_deregister(&ath3k_driver);
	435	}
	436
	437	module_init(ath3k_init);
	438	module_exit(ath3k_exit);
	439
	440	MODULE_AUTHOR("Atheros Communications");
	441	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	442	MODULE_VERSION(VERSION);
	443	MODULE_LICENSE("GPL");
	444	MODULE_FIRMWARE("ath3k-1.fw");