[linux-2.6-block.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_FIRMWARE	"ath3k-1.fw"

#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) },
	{ USB_DEVICE(0x0489, 0xE03D) },

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

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x13d3, 0x3375) },

	/* 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 },
	{ USB_DEVICE(0x13d3, 0x3375), .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;
	}

	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	if (ret < 0) {
		if (ret == -ENOENT)
			BT_ERR("Firmware file \"%s\" not found",
							ATH3K_FIRMWARE);
		else
			BT_ERR("Firmware file \"%s\" request failed (err=%d)",
							ATH3K_FIRMWARE, ret);
		return ret;
	}

	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,
};

module_usb_driver(ath3k_driver);

MODULE_AUTHOR("Atheros Communications");
MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(ATH3K_FIRMWARE);
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"
c3eae82a	33	#define ATH3K_FIRMWARE "ath3k-1.fw"
9670d80a	34
d9f51b51 BS	35	#define ATH3K_DNLOAD 0x01
	36	#define ATH3K_GETSTATE 0x05
	37	#define ATH3K_SET_NORMAL_MODE 0x07
	38	#define ATH3K_GETVERSION 0x09
	39	#define USB_REG_SWITCH_VID_PID 0x0a
	40
	41	#define ATH3K_MODE_MASK 0x3F
	42	#define ATH3K_NORMAL_MODE 0x0E
	43
	44	#define ATH3K_PATCH_UPDATE 0x80
	45	#define ATH3K_SYSCFG_UPDATE 0x40
	46
	47	#define ATH3K_XTAL_FREQ_26M 0x00
	48	#define ATH3K_XTAL_FREQ_40M 0x01
	49	#define ATH3K_XTAL_FREQ_19P2 0x02
	50	#define ATH3K_NAME_LEN 0xFF
	51
	52	struct ath3k_version {
	53	unsigned int rom_version;
	54	unsigned int build_version;
	55	unsigned int ram_version;
	56	unsigned char ref_clock;
	57	unsigned char reserved[0x07];
	58	};
9670d80a VK	59
	60	static struct usb_device_id ath3k_table[] = {
	61	/* Atheros AR3011 */
	62	{ USB_DEVICE(0x0CF3, 0x3000) },
be93112a BS	63
	64	/* Atheros AR3011 with sflash firmware*/
	65	{ USB_DEVICE(0x0CF3, 0x3002) },
2a7bcccc	66	{ USB_DEVICE(0x13d3, 0x3304) },
8e7c3d2e	67	{ USB_DEVICE(0x0930, 0x0215) },
6b6ba88b	68	{ USB_DEVICE(0x0489, 0xE03D) },
be93112a	69
509e7861 CYC	70	/* Atheros AR9285 Malbec with sflash firmware */
509e7861 CYC	71	{ USB_DEVICE(0x03F0, 0x311D) },
d9f51b51 BS	72
	73	/* Atheros AR3012 with sflash firmware*/
	74	{ USB_DEVICE(0x0CF3, 0x3004) },
9498ba7a	75	{ USB_DEVICE(0x13d3, 0x3375) },
d9f51b51	76
e9036e33 CYC	77	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	78	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	79
9670d80a VK	80	{ } /* Terminating entry */
	81	};
	82
	83	MODULE_DEVICE_TABLE(usb, ath3k_table);
	84
d9f51b51 BS	85	#define BTUSB_ATH3012 0x80
	86	/* This table is to load patch and sysconfig files
	87	* for AR3012 */
	88	static struct usb_device_id ath3k_blist_tbl[] = {
	89
	90	/* Atheros AR3012 with sflash firmware*/
	91	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
9498ba7a	92	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
d9f51b51 BS	93
	94	{ } /* Terminating entry */
	95	};
	96
9670d80a VK	97	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	98	#define BULK_SIZE 4096
d9f51b51	99	#define FW_HDR_SIZE 20
9670d80a	100
86e09287 AH	101	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	102	const struct firmware *firmware)
9670d80a VK	103	{
	104	u8 *send_buf;
	105	int err, pipe, len, size, sent = 0;
86e09287	106	int count = firmware->size;
9670d80a	107
86e09287	108	BT_DBG("udev %p", udev);
9670d80a	109
86e09287	110	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	111
52a1020e	112	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	113	if (!send_buf) {
	114	BT_ERR("Can't allocate memory chunk for firmware");
	115	return -ENOMEM;
	116	}
	117
	118	memcpy(send_buf, firmware->data, 20);
	119	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	120	USB_REQ_DFU_DNLOAD,
9670d80a VK	121	USB_TYPE_VENDOR, 0, 0,
86e09287	122	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	123	BT_ERR("Can't change to loading configuration err");
86e09287	124	goto error;
9670d80a VK	125	}
	126	sent += 20;
	127	count -= 20;
	128
9670d80a VK	129	while (count) {
9670d80a VK	130	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	131	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	132	memcpy(send_buf, firmware->data + sent, size);
9670d80a	133
86e09287	134	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	135	&len, 3000);
	136
	137	if (err \|\| (len != size)) {
	138	BT_ERR("Error in firmware loading err = %d,"
	139	"len = %d, size = %d", err, len, size);
	140	goto error;
	141	}
	142
	143	sent += size;
	144	count -= size;
	145	}
	146
9670d80a VK	147	error:
	148	kfree(send_buf);
	149	return err;
	150	}
	151
d9f51b51 BS	152	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	153	{
	154	int pipe = 0;
	155
	156	pipe = usb_rcvctrlpipe(udev, 0);
	157	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	158	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	159	state, 0x01, USB_CTRL_SET_TIMEOUT);
	160	}
	161
	162	static int ath3k_get_version(struct usb_device *udev,
	163	struct ath3k_version *version)
	164	{
	165	int pipe = 0;
	166
	167	pipe = usb_rcvctrlpipe(udev, 0);
	168	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	169	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	170	sizeof(struct ath3k_version),
	171	USB_CTRL_SET_TIMEOUT);
	172	}
	173
	174	static int ath3k_load_fwfile(struct usb_device *udev,
	175	const struct firmware *firmware)
	176	{
	177	u8 *send_buf;
	178	int err, pipe, len, size, count, sent = 0;
	179	int ret;
	180
	181	count = firmware->size;
	182
52a1020e	183	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	184	if (!send_buf) {
	185	BT_ERR("Can't allocate memory chunk for firmware");
	186	return -ENOMEM;
	187	}
	188
	189	size = min_t(uint, count, FW_HDR_SIZE);
	190	memcpy(send_buf, firmware->data, size);
	191
	192	pipe = usb_sndctrlpipe(udev, 0);
	193	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	194	USB_TYPE_VENDOR, 0, 0, send_buf,
	195	size, USB_CTRL_SET_TIMEOUT);
	196	if (ret < 0) {
	197	BT_ERR("Can't change to loading configuration err");
	198	kfree(send_buf);
	199	return ret;
	200	}
	201
	202	sent += size;
	203	count -= size;
	204
	205	while (count) {
	206	size = min_t(uint, count, BULK_SIZE);
	207	pipe = usb_sndbulkpipe(udev, 0x02);
	208
	209	memcpy(send_buf, firmware->data + sent, size);
	210
	211	err = usb_bulk_msg(udev, pipe, send_buf, size,
	212	&len, 3000);
	213	if (err \|\| (len != size)) {
	214	BT_ERR("Error in firmware loading err = %d,"
	215	"len = %d, size = %d", err, len, size);
	216	kfree(send_buf);
	217	return err;
	218	}
	219	sent += size;
	220	count -= size;
	221	}
	222
	223	kfree(send_buf);
	224	return 0;
	225	}
	226
	227	static int ath3k_switch_pid(struct usb_device *udev)
	228	{
	229	int pipe = 0;
	230
	231	pipe = usb_sndctrlpipe(udev, 0);
	232	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	233	USB_TYPE_VENDOR, 0, 0,
	234	NULL, 0, USB_CTRL_SET_TIMEOUT);
	235	}
	236
	237	static int ath3k_set_normal_mode(struct usb_device *udev)
	238	{
	239	unsigned char fw_state;
	240	int pipe = 0, ret;
	241
	242	ret = ath3k_get_state(udev, &fw_state);
	243	if (ret < 0) {
	244	BT_ERR("Can't get state to change to normal mode err");
	245	return ret;
	246	}
	247
248	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
249	BT_DBG("firmware was already in normal mode");
250	return 0;
251	}
252
253	pipe = usb_sndctrlpipe(udev, 0);
254	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
255	USB_TYPE_VENDOR, 0, 0,
256	NULL, 0, USB_CTRL_SET_TIMEOUT);
257	}
258
259	static int ath3k_load_patch(struct usb_device *udev)
260	{
261	unsigned char fw_state;
262	char filename[ATH3K_NAME_LEN] = {0};
263	const struct firmware *firmware;
264	struct ath3k_version fw_version, pt_version;
265	int ret;
266
267	ret = ath3k_get_state(udev, &fw_state);
268	if (ret < 0) {
269	BT_ERR("Can't get state to change to load ram patch err");
270	return ret;
271	}
272
273	if (fw_state & ATH3K_PATCH_UPDATE) {
274	BT_DBG("Patch was already downloaded");
275	return 0;
276	}
277
278	ret = ath3k_get_version(udev, &fw_version);
279	if (ret < 0) {
280	BT_ERR("Can't get version to change to load ram patch err");
281	return ret;
282	}
283
284	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
285	fw_version.rom_version);
286
287	ret = request_firmware(&firmware, filename, &udev->dev);
288	if (ret < 0) {
289	BT_ERR("Patch file not found %s", filename);
290	return ret;
291	}
292
293	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
294	pt_version.build_version = (int )
295	(firmware->data + firmware->size - 4);
296
297	if ((pt_version.rom_version != fw_version.rom_version) \|\|
298	(pt_version.build_version <= fw_version.build_version)) {
299	BT_ERR("Patch file version did not match with firmware");
300	release_firmware(firmware);
301	return -EINVAL;
302	}
303
304	ret = ath3k_load_fwfile(udev, firmware);
305	release_firmware(firmware);
306
307	return ret;
308	}
309
310	static int ath3k_load_syscfg(struct usb_device *udev)
311	{
312	unsigned char fw_state;
313	char filename[ATH3K_NAME_LEN] = {0};
314	const struct firmware *firmware;
315	struct ath3k_version fw_version;
316	int clk_value, ret;
317
318	ret = ath3k_get_state(udev, &fw_state);
319	if (ret < 0) {
320	BT_ERR("Can't get state to change to load configration err");
321	return -EBUSY;
322	}
323
324	ret = ath3k_get_version(udev, &fw_version);
325	if (ret < 0) {
326	BT_ERR("Can't get version to change to load ram patch err");
327	return ret;
328	}
329
330	switch (fw_version.ref_clock) {
331
332	case ATH3K_XTAL_FREQ_26M:
333	clk_value = 26;
334	break;
335	case ATH3K_XTAL_FREQ_40M:
336	clk_value = 40;
337	break;
338	case ATH3K_XTAL_FREQ_19P2:
339	clk_value = 19;
340	break;
341	default:
342	clk_value = 0;
343	break;
344	}
345
346	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
347	fw_version.rom_version, clk_value, ".dfu");
348
349	ret = request_firmware(&firmware, filename, &udev->dev);
350	if (ret < 0) {
351	BT_ERR("Configuration file not found %s", filename);
352	return ret;
353	}
354
355	ret = ath3k_load_fwfile(udev, firmware);
356	release_firmware(firmware);
357
358	return ret;
359	}
360
9670d80a VK	361	static int ath3k_probe(struct usb_interface *intf,
	362	const struct usb_device_id *id)
	363	{
	364	const struct firmware *firmware;
	365	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	366	int ret;
9670d80a VK	367
	368	BT_DBG("intf %p id %p", intf, id);
	369
	370	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	371	return -ENODEV;
	372
d9f51b51 BS	373	/* match device ID in ath3k blacklist table */
	374	if (!id->driver_info) {
	375	const struct usb_device_id *match;
	376	match = usb_match_id(intf, ath3k_blist_tbl);
	377	if (match)
	378	id = match;
	379	}
	380
	381	/* load patch and sysconfig files for AR3012 */
	382	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	383
	384	/* New firmware with patch and sysconfig files already loaded */
	385	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	386	return -ENODEV;
	387
d9f51b51 BS	388	ret = ath3k_load_patch(udev);
	389	if (ret < 0) {
	390	BT_ERR("Loading patch file failed");
	391	return ret;
	392	}
	393	ret = ath3k_load_syscfg(udev);
	394	if (ret < 0) {
	395	BT_ERR("Loading sysconfig file failed");
	396	return ret;
	397	}
	398	ret = ath3k_set_normal_mode(udev);
	399	if (ret < 0) {
	400	BT_ERR("Set normal mode failed");
	401	return ret;
	402	}
	403	ath3k_switch_pid(udev);
	404	return 0;
	405	}
	406
c3eae82a PF	407	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	408	if (ret < 0) {
	409	if (ret == -ENOENT)
	410	BT_ERR("Firmware file \"%s\" not found",
	411	ATH3K_FIRMWARE);
	412	else
	413	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	414	ATH3K_FIRMWARE, ret);
	415	return ret;
9670d80a VK	416	}
9670d80a VK	417
84f0e17f	418	ret = ath3k_load_firmware(udev, firmware);
86e09287	419	release_firmware(firmware);
9670d80a	420
84f0e17f	421	return ret;
9670d80a VK	422	}
	423
	424	static void ath3k_disconnect(struct usb_interface *intf)
	425	{
9670d80a	426	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	427	}
	428
	429	static struct usb_driver ath3k_driver = {
	430	.name = "ath3k",
	431	.probe = ath3k_probe,
	432	.disconnect = ath3k_disconnect,
	433	.id_table = ath3k_table,
	434	};
	435
93f1508c	436	module_usb_driver(ath3k_driver);
9670d80a VK	437
	438	MODULE_AUTHOR("Atheros Communications");
	439	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	440	MODULE_VERSION(VERSION);
	441	MODULE_LICENSE("GPL");
c3eae82a	442	MODULE_FIRMWARE(ATH3K_FIRMWARE);