[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) },

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

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

	{ }	/* 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_ATOMIC);
	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;
	}

	kfree(send_buf);
	return 0;

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_ATOMIC);
	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) {
		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) },
	65
509e7861 CYC	66	/* Atheros AR9285 Malbec with sflash firmware */
509e7861 CYC	67	{ USB_DEVICE(0x03F0, 0x311D) },
d9f51b51 BS	68
	69	/* Atheros AR3012 with sflash firmware*/
	70	{ USB_DEVICE(0x0CF3, 0x3004) },
	71
9670d80a VK	72	{ } /* Terminating entry */
	73	};
	74
	75	MODULE_DEVICE_TABLE(usb, ath3k_table);
	76
d9f51b51 BS	77	#define BTUSB_ATH3012 0x80
	78	/* This table is to load patch and sysconfig files
	79	* for AR3012 */
	80	static struct usb_device_id ath3k_blist_tbl[] = {
	81
	82	/* Atheros AR3012 with sflash firmware*/
	83	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	84
	85	{ } /* Terminating entry */
	86	};
	87
9670d80a VK	88	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	89	#define BULK_SIZE 4096
d9f51b51	90	#define FW_HDR_SIZE 20
9670d80a	91
86e09287 AH	92	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	93	const struct firmware *firmware)
9670d80a VK	94	{
	95	u8 *send_buf;
	96	int err, pipe, len, size, sent = 0;
86e09287	97	int count = firmware->size;
9670d80a	98
86e09287	99	BT_DBG("udev %p", udev);
9670d80a	100
86e09287	101	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	102
86e09287 AH	103	send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
	104	if (!send_buf) {
	105	BT_ERR("Can't allocate memory chunk for firmware");
	106	return -ENOMEM;
	107	}
	108
	109	memcpy(send_buf, firmware->data, 20);
	110	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	111	USB_REQ_DFU_DNLOAD,
9670d80a VK	112	USB_TYPE_VENDOR, 0, 0,
86e09287	113	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	114	BT_ERR("Can't change to loading configuration err");
86e09287	115	goto error;
9670d80a VK	116	}
	117	sent += 20;
	118	count -= 20;
	119
9670d80a VK	120	while (count) {
9670d80a VK	121	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	122	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	123	memcpy(send_buf, firmware->data + sent, size);
9670d80a	124
86e09287	125	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	126	&len, 3000);
	127
	128	if (err \|\| (len != size)) {
	129	BT_ERR("Error in firmware loading err = %d,"
	130	"len = %d, size = %d", err, len, size);
	131	goto error;
	132	}
	133
	134	sent += size;
	135	count -= size;
	136	}
	137
	138	kfree(send_buf);
	139	return 0;
	140
	141	error:
	142	kfree(send_buf);
	143	return err;
	144	}
	145
d9f51b51 BS	146	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	147	{
	148	int pipe = 0;
	149
	150	pipe = usb_rcvctrlpipe(udev, 0);
	151	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	152	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	153	state, 0x01, USB_CTRL_SET_TIMEOUT);
	154	}
	155
	156	static int ath3k_get_version(struct usb_device *udev,
	157	struct ath3k_version *version)
	158	{
	159	int pipe = 0;
	160
	161	pipe = usb_rcvctrlpipe(udev, 0);
	162	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	163	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	164	sizeof(struct ath3k_version),
	165	USB_CTRL_SET_TIMEOUT);
	166	}
	167
	168	static int ath3k_load_fwfile(struct usb_device *udev,
	169	const struct firmware *firmware)
	170	{
	171	u8 *send_buf;
	172	int err, pipe, len, size, count, sent = 0;
	173	int ret;
	174
	175	count = firmware->size;
	176
	177	send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
	178	if (!send_buf) {
	179	BT_ERR("Can't allocate memory chunk for firmware");
	180	return -ENOMEM;
	181	}
	182
	183	size = min_t(uint, count, FW_HDR_SIZE);
	184	memcpy(send_buf, firmware->data, size);
	185
	186	pipe = usb_sndctrlpipe(udev, 0);
	187	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	188	USB_TYPE_VENDOR, 0, 0, send_buf,
	189	size, USB_CTRL_SET_TIMEOUT);
	190	if (ret < 0) {
	191	BT_ERR("Can't change to loading configuration err");
	192	kfree(send_buf);
	193	return ret;
	194	}
	195
	196	sent += size;
	197	count -= size;
	198
	199	while (count) {
	200	size = min_t(uint, count, BULK_SIZE);
	201	pipe = usb_sndbulkpipe(udev, 0x02);
	202
	203	memcpy(send_buf, firmware->data + sent, size);
	204
	205	err = usb_bulk_msg(udev, pipe, send_buf, size,
	206	&len, 3000);
	207	if (err \|\| (len != size)) {
	208	BT_ERR("Error in firmware loading err = %d,"
	209	"len = %d, size = %d", err, len, size);
210	kfree(send_buf);
211	return err;
212	}
213	sent += size;
214	count -= size;
215	}
216
217	kfree(send_buf);
218	return 0;
219	}
220
221	static int ath3k_switch_pid(struct usb_device *udev)
222	{
223	int pipe = 0;
224
225	pipe = usb_sndctrlpipe(udev, 0);
226	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
227	USB_TYPE_VENDOR, 0, 0,
228	NULL, 0, USB_CTRL_SET_TIMEOUT);
229	}
230
231	static int ath3k_set_normal_mode(struct usb_device *udev)
232	{
233	unsigned char fw_state;
234	int pipe = 0, ret;
235
236	ret = ath3k_get_state(udev, &fw_state);
237	if (ret < 0) {
238	BT_ERR("Can't get state to change to normal mode err");
239	return ret;
240	}
241
242	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
243	BT_DBG("firmware was already in normal mode");
244	return 0;
245	}
246
247	pipe = usb_sndctrlpipe(udev, 0);
248	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
249	USB_TYPE_VENDOR, 0, 0,
250	NULL, 0, USB_CTRL_SET_TIMEOUT);
251	}
252
253	static int ath3k_load_patch(struct usb_device *udev)
254	{
255	unsigned char fw_state;
256	char filename[ATH3K_NAME_LEN] = {0};
257	const struct firmware *firmware;
258	struct ath3k_version fw_version, pt_version;
259	int ret;
260
261	ret = ath3k_get_state(udev, &fw_state);
262	if (ret < 0) {
263	BT_ERR("Can't get state to change to load ram patch err");
264	return ret;
265	}
266
267	if (fw_state & ATH3K_PATCH_UPDATE) {
268	BT_DBG("Patch was already downloaded");
269	return 0;
270	}
271
272	ret = ath3k_get_version(udev, &fw_version);
273	if (ret < 0) {
274	BT_ERR("Can't get version to change to load ram patch err");
275	return ret;
276	}
277
278	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
279	fw_version.rom_version);
280
281	ret = request_firmware(&firmware, filename, &udev->dev);
282	if (ret < 0) {
283	BT_ERR("Patch file not found %s", filename);
284	return ret;
285	}
286
287	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
288	pt_version.build_version = (int )
289	(firmware->data + firmware->size - 4);
290
291	if ((pt_version.rom_version != fw_version.rom_version) \|\|
292	(pt_version.build_version <= fw_version.build_version)) {
293	BT_ERR("Patch file version did not match with firmware");
294	release_firmware(firmware);
295	return -EINVAL;
296	}
297
298	ret = ath3k_load_fwfile(udev, firmware);
299	release_firmware(firmware);
300
301	return ret;
302	}
303
304	static int ath3k_load_syscfg(struct usb_device *udev)
305	{
306	unsigned char fw_state;
307	char filename[ATH3K_NAME_LEN] = {0};
308	const struct firmware *firmware;
309	struct ath3k_version fw_version;
310	int clk_value, ret;
311
312	ret = ath3k_get_state(udev, &fw_state);
313	if (ret < 0) {
314	BT_ERR("Can't get state to change to load configration err");
315	return -EBUSY;
316	}
317
318	ret = ath3k_get_version(udev, &fw_version);
319	if (ret < 0) {
320	BT_ERR("Can't get version to change to load ram patch err");
321	return ret;
322	}
323
324	switch (fw_version.ref_clock) {
325
326	case ATH3K_XTAL_FREQ_26M:
327	clk_value = 26;
328	break;
329	case ATH3K_XTAL_FREQ_40M:
330	clk_value = 40;
331	break;
332	case ATH3K_XTAL_FREQ_19P2:
333	clk_value = 19;
334	break;
335	default:
336	clk_value = 0;
337	break;
338	}
339
340	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
341	fw_version.rom_version, clk_value, ".dfu");
342
343	ret = request_firmware(&firmware, filename, &udev->dev);
344	if (ret < 0) {
345	BT_ERR("Configuration file not found %s", filename);
346	return ret;
347	}
348
349	ret = ath3k_load_fwfile(udev, firmware);
350	release_firmware(firmware);
351
352	return ret;
353	}
354
9670d80a VK	355	static int ath3k_probe(struct usb_interface *intf,
	356	const struct usb_device_id *id)
	357	{
	358	const struct firmware *firmware;
	359	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	360	int ret;
9670d80a VK	361
	362	BT_DBG("intf %p id %p", intf, id);
	363
	364	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	365	return -ENODEV;
	366
d9f51b51 BS	367	/* match device ID in ath3k blacklist table */
	368	if (!id->driver_info) {
	369	const struct usb_device_id *match;
	370	match = usb_match_id(intf, ath3k_blist_tbl);
	371	if (match)
	372	id = match;
	373	}
	374
	375	/* load patch and sysconfig files for AR3012 */
	376	if (id->driver_info & BTUSB_ATH3012) {
	377	ret = ath3k_load_patch(udev);
	378	if (ret < 0) {
	379	BT_ERR("Loading patch file failed");
	380	return ret;
	381	}
	382	ret = ath3k_load_syscfg(udev);
	383	if (ret < 0) {
	384	BT_ERR("Loading sysconfig file failed");
	385	return ret;
	386	}
	387	ret = ath3k_set_normal_mode(udev);
	388	if (ret < 0) {
	389	BT_ERR("Set normal mode failed");
	390	return ret;
	391	}
	392	ath3k_switch_pid(udev);
	393	return 0;
	394	}
	395
9670d80a	396	if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
d9f51b51	397	BT_ERR("Error loading firmware");
9670d80a VK	398	return -EIO;
	399	}
	400
84f0e17f	401	ret = ath3k_load_firmware(udev, firmware);
86e09287	402	release_firmware(firmware);
9670d80a	403
84f0e17f	404	return ret;
9670d80a VK	405	}
	406
	407	static void ath3k_disconnect(struct usb_interface *intf)
	408	{
9670d80a	409	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	410	}
	411
	412	static struct usb_driver ath3k_driver = {
	413	.name = "ath3k",
	414	.probe = ath3k_probe,
	415	.disconnect = ath3k_disconnect,
	416	.id_table = ath3k_table,
	417	};
	418
	419	static int __init ath3k_init(void)
	420	{
	421	BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
	422	return usb_register(&ath3k_driver);
	423	}
	424
	425	static void __exit ath3k_exit(void)
	426	{
	427	usb_deregister(&ath3k_driver);
	428	}
	429
	430	module_init(ath3k_init);
	431	module_exit(ath3k_exit);
	432
	433	MODULE_AUTHOR("Atheros Communications");
	434	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	435	MODULE_VERSION(VERSION);
	436	MODULE_LICENSE("GPL");
	437	MODULE_FIRMWARE("ath3k-1.fw");