[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_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) },

	/* 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;
	}

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