[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) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x13d3, 0x3362) },

	/* 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(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3362), .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) },
07c0ea87	75	{ USB_DEVICE(0x0CF3, 0x311D) },
9498ba7a	76	{ USB_DEVICE(0x13d3, 0x3375) },
55ed7d4d	77	{ USB_DEVICE(0x04CA, 0x3005) },
87522a43	78	{ USB_DEVICE(0x13d3, 0x3362) },
d9f51b51	79
e9036e33 CYC	80	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	81	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	82
9670d80a VK	83	{ } /* Terminating entry */
	84	};
	85
	86	MODULE_DEVICE_TABLE(usb, ath3k_table);
	87
d9f51b51 BS	88	#define BTUSB_ATH3012 0x80
	89	/* This table is to load patch and sysconfig files
	90	* for AR3012 */
	91	static struct usb_device_id ath3k_blist_tbl[] = {
	92
	93	/* Atheros AR3012 with sflash firmware*/
	94	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
07c0ea87	95	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
9498ba7a	96	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
55ed7d4d	97	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
87522a43	98	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
d9f51b51 BS	99
	100	{ } /* Terminating entry */
	101	};
	102
9670d80a VK	103	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	104	#define BULK_SIZE 4096
d9f51b51	105	#define FW_HDR_SIZE 20
9670d80a	106
86e09287 AH	107	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	108	const struct firmware *firmware)
9670d80a VK	109	{
	110	u8 *send_buf;
	111	int err, pipe, len, size, sent = 0;
86e09287	112	int count = firmware->size;
9670d80a	113
86e09287	114	BT_DBG("udev %p", udev);
9670d80a	115
86e09287	116	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	117
52a1020e	118	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	119	if (!send_buf) {
	120	BT_ERR("Can't allocate memory chunk for firmware");
	121	return -ENOMEM;
	122	}
	123
	124	memcpy(send_buf, firmware->data, 20);
	125	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	126	USB_REQ_DFU_DNLOAD,
9670d80a VK	127	USB_TYPE_VENDOR, 0, 0,
86e09287	128	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	129	BT_ERR("Can't change to loading configuration err");
86e09287	130	goto error;
9670d80a VK	131	}
	132	sent += 20;
	133	count -= 20;
	134
9670d80a VK	135	while (count) {
9670d80a VK	136	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	137	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	138	memcpy(send_buf, firmware->data + sent, size);
9670d80a	139
86e09287	140	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	141	&len, 3000);
	142
	143	if (err \|\| (len != size)) {
	144	BT_ERR("Error in firmware loading err = %d,"
	145	"len = %d, size = %d", err, len, size);
	146	goto error;
	147	}
	148
	149	sent += size;
	150	count -= size;
	151	}
	152
9670d80a VK	153	error:
	154	kfree(send_buf);
	155	return err;
	156	}
	157
d9f51b51 BS	158	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	159	{
	160	int pipe = 0;
	161
	162	pipe = usb_rcvctrlpipe(udev, 0);
	163	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	164	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	165	state, 0x01, USB_CTRL_SET_TIMEOUT);
	166	}
	167
	168	static int ath3k_get_version(struct usb_device *udev,
	169	struct ath3k_version *version)
	170	{
	171	int pipe = 0;
	172
	173	pipe = usb_rcvctrlpipe(udev, 0);
	174	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	175	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	176	sizeof(struct ath3k_version),
	177	USB_CTRL_SET_TIMEOUT);
	178	}
	179
	180	static int ath3k_load_fwfile(struct usb_device *udev,
	181	const struct firmware *firmware)
	182	{
	183	u8 *send_buf;
	184	int err, pipe, len, size, count, sent = 0;
	185	int ret;
	186
	187	count = firmware->size;
	188
52a1020e	189	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	190	if (!send_buf) {
	191	BT_ERR("Can't allocate memory chunk for firmware");
	192	return -ENOMEM;
	193	}
	194
	195	size = min_t(uint, count, FW_HDR_SIZE);
	196	memcpy(send_buf, firmware->data, size);
	197
	198	pipe = usb_sndctrlpipe(udev, 0);
	199	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	200	USB_TYPE_VENDOR, 0, 0, send_buf,
	201	size, USB_CTRL_SET_TIMEOUT);
	202	if (ret < 0) {
	203	BT_ERR("Can't change to loading configuration err");
	204	kfree(send_buf);
	205	return ret;
	206	}
	207
	208	sent += size;
	209	count -= size;
	210
	211	while (count) {
	212	size = min_t(uint, count, BULK_SIZE);
	213	pipe = usb_sndbulkpipe(udev, 0x02);
	214
	215	memcpy(send_buf, firmware->data + sent, size);
	216
	217	err = usb_bulk_msg(udev, pipe, send_buf, size,
	218	&len, 3000);
	219	if (err \|\| (len != size)) {
	220	BT_ERR("Error in firmware loading err = %d,"
	221	"len = %d, size = %d", err, len, size);
	222	kfree(send_buf);
	223	return err;
	224	}
	225	sent += size;
	226	count -= size;
	227	}
	228
	229	kfree(send_buf);
	230	return 0;
	231	}
	232
	233	static int ath3k_switch_pid(struct usb_device *udev)
	234	{
	235	int pipe = 0;
	236
	237	pipe = usb_sndctrlpipe(udev, 0);
	238	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	239	USB_TYPE_VENDOR, 0, 0,
	240	NULL, 0, USB_CTRL_SET_TIMEOUT);
	241	}
	242
	243	static int ath3k_set_normal_mode(struct usb_device *udev)
	244	{
	245	unsigned char fw_state;
	246	int pipe = 0, ret;
	247
	248	ret = ath3k_get_state(udev, &fw_state);
	249	if (ret < 0) {
	250	BT_ERR("Can't get state to change to normal mode err");
	251	return ret;
	252	}
	253
254	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
255	BT_DBG("firmware was already in normal mode");
256	return 0;
257	}
258
259	pipe = usb_sndctrlpipe(udev, 0);
260	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
261	USB_TYPE_VENDOR, 0, 0,
262	NULL, 0, USB_CTRL_SET_TIMEOUT);
263	}
264
265	static int ath3k_load_patch(struct usb_device *udev)
266	{
267	unsigned char fw_state;
268	char filename[ATH3K_NAME_LEN] = {0};
269	const struct firmware *firmware;
270	struct ath3k_version fw_version, pt_version;
271	int ret;
272
273	ret = ath3k_get_state(udev, &fw_state);
274	if (ret < 0) {
275	BT_ERR("Can't get state to change to load ram patch err");
276	return ret;
277	}
278
279	if (fw_state & ATH3K_PATCH_UPDATE) {
280	BT_DBG("Patch was already downloaded");
281	return 0;
282	}
283
284	ret = ath3k_get_version(udev, &fw_version);
285	if (ret < 0) {
286	BT_ERR("Can't get version to change to load ram patch err");
287	return ret;
288	}
289
290	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
291	fw_version.rom_version);
292
293	ret = request_firmware(&firmware, filename, &udev->dev);
294	if (ret < 0) {
295	BT_ERR("Patch file not found %s", filename);
296	return ret;
297	}
298
299	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
300	pt_version.build_version = (int )
301	(firmware->data + firmware->size - 4);
302
303	if ((pt_version.rom_version != fw_version.rom_version) \|\|
304	(pt_version.build_version <= fw_version.build_version)) {
305	BT_ERR("Patch file version did not match with firmware");
306	release_firmware(firmware);
307	return -EINVAL;
308	}
309
310	ret = ath3k_load_fwfile(udev, firmware);
311	release_firmware(firmware);
312
313	return ret;
314	}
315
316	static int ath3k_load_syscfg(struct usb_device *udev)
317	{
318	unsigned char fw_state;
319	char filename[ATH3K_NAME_LEN] = {0};
320	const struct firmware *firmware;
321	struct ath3k_version fw_version;
322	int clk_value, ret;
323
324	ret = ath3k_get_state(udev, &fw_state);
325	if (ret < 0) {
326	BT_ERR("Can't get state to change to load configration err");
327	return -EBUSY;
328	}
329
330	ret = ath3k_get_version(udev, &fw_version);
331	if (ret < 0) {
332	BT_ERR("Can't get version to change to load ram patch err");
333	return ret;
334	}
335
336	switch (fw_version.ref_clock) {
337
338	case ATH3K_XTAL_FREQ_26M:
339	clk_value = 26;
340	break;
341	case ATH3K_XTAL_FREQ_40M:
342	clk_value = 40;
343	break;
344	case ATH3K_XTAL_FREQ_19P2:
345	clk_value = 19;
346	break;
347	default:
348	clk_value = 0;
349	break;
350	}
351
352	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
353	fw_version.rom_version, clk_value, ".dfu");
354
355	ret = request_firmware(&firmware, filename, &udev->dev);
356	if (ret < 0) {
357	BT_ERR("Configuration file not found %s", filename);
358	return ret;
359	}
360
361	ret = ath3k_load_fwfile(udev, firmware);
362	release_firmware(firmware);
363
364	return ret;
365	}
366
9670d80a VK	367	static int ath3k_probe(struct usb_interface *intf,
	368	const struct usb_device_id *id)
	369	{
	370	const struct firmware *firmware;
	371	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	372	int ret;
9670d80a VK	373
	374	BT_DBG("intf %p id %p", intf, id);
	375
	376	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	377	return -ENODEV;
	378
d9f51b51 BS	379	/* match device ID in ath3k blacklist table */
	380	if (!id->driver_info) {
	381	const struct usb_device_id *match;
	382	match = usb_match_id(intf, ath3k_blist_tbl);
	383	if (match)
	384	id = match;
	385	}
	386
	387	/* load patch and sysconfig files for AR3012 */
	388	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	389
	390	/* New firmware with patch and sysconfig files already loaded */
	391	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	392	return -ENODEV;
	393
d9f51b51 BS	394	ret = ath3k_load_patch(udev);
	395	if (ret < 0) {
	396	BT_ERR("Loading patch file failed");
	397	return ret;
	398	}
	399	ret = ath3k_load_syscfg(udev);
	400	if (ret < 0) {
	401	BT_ERR("Loading sysconfig file failed");
	402	return ret;
	403	}
	404	ret = ath3k_set_normal_mode(udev);
	405	if (ret < 0) {
	406	BT_ERR("Set normal mode failed");
	407	return ret;
	408	}
	409	ath3k_switch_pid(udev);
	410	return 0;
	411	}
	412
c3eae82a PF	413	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	414	if (ret < 0) {
	415	if (ret == -ENOENT)
	416	BT_ERR("Firmware file \"%s\" not found",
	417	ATH3K_FIRMWARE);
	418	else
	419	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	420	ATH3K_FIRMWARE, ret);
	421	return ret;
9670d80a VK	422	}
9670d80a VK	423
84f0e17f	424	ret = ath3k_load_firmware(udev, firmware);
86e09287	425	release_firmware(firmware);
9670d80a	426
84f0e17f	427	return ret;
9670d80a VK	428	}
	429
	430	static void ath3k_disconnect(struct usb_interface *intf)
	431	{
9670d80a	432	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	433	}
	434
	435	static struct usb_driver ath3k_driver = {
	436	.name = "ath3k",
	437	.probe = ath3k_probe,
	438	.disconnect = ath3k_disconnect,
	439	.id_table = ath3k_table,
	440	};
	441
93f1508c	442	module_usb_driver(ath3k_driver);
9670d80a VK	443
	444	MODULE_AUTHOR("Atheros Communications");
	445	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	446	MODULE_VERSION(VERSION);
	447	MODULE_LICENSE("GPL");
c3eae82a	448	MODULE_FIRMWARE(ATH3K_FIRMWARE);