[mirror_ubuntu-zesty-kernel.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 <asm/unaligned.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 {
	__le32	rom_version;
	__le32	build_version;
	__le32	ram_version;
	__u8	ref_clock;
	__u8	reserved[7];
} __packed;

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

	/* Atheros AR3011 with sflash firmware*/
	{ USB_DEVICE(0x0489, 0xE027) },
	{ USB_DEVICE(0x0489, 0xE03D) },
	{ USB_DEVICE(0x04F2, 0xAFF1) },
	{ USB_DEVICE(0x0930, 0x0215) },
	{ USB_DEVICE(0x0CF3, 0x3002) },
	{ USB_DEVICE(0x0CF3, 0xE019) },
	{ USB_DEVICE(0x13d3, 0x3304) },

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

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0489, 0xe04d) },
	{ USB_DEVICE(0x0489, 0xe04e) },
	{ USB_DEVICE(0x0489, 0xe057) },
	{ USB_DEVICE(0x0489, 0xe056) },
	{ USB_DEVICE(0x0489, 0xe05f) },
	{ USB_DEVICE(0x0489, 0xe076) },
	{ USB_DEVICE(0x0489, 0xe078) },
	{ USB_DEVICE(0x0489, 0xe095) },
	{ USB_DEVICE(0x04c5, 0x1330) },
	{ USB_DEVICE(0x04CA, 0x3004) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x04CA, 0x3006) },
	{ USB_DEVICE(0x04CA, 0x3007) },
	{ USB_DEVICE(0x04CA, 0x3008) },
	{ USB_DEVICE(0x04CA, 0x300b) },
	{ USB_DEVICE(0x04CA, 0x300d) },
	{ USB_DEVICE(0x04CA, 0x300f) },
	{ USB_DEVICE(0x04CA, 0x3010) },
	{ USB_DEVICE(0x04CA, 0x3014) },
	{ USB_DEVICE(0x04CA, 0x3018) },
	{ USB_DEVICE(0x0930, 0x0219) },
	{ USB_DEVICE(0x0930, 0x021c) },
	{ USB_DEVICE(0x0930, 0x0220) },
	{ USB_DEVICE(0x0930, 0x0227) },
	{ USB_DEVICE(0x0b05, 0x17d0) },
	{ USB_DEVICE(0x0CF3, 0x0036) },
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x3008) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x0CF3, 0x311E) },
	{ USB_DEVICE(0x0CF3, 0x311F) },
	{ USB_DEVICE(0x0cf3, 0x3121) },
	{ USB_DEVICE(0x0CF3, 0x817a) },
	{ USB_DEVICE(0x0CF3, 0x817b) },
	{ USB_DEVICE(0x0cf3, 0xe003) },
	{ USB_DEVICE(0x0CF3, 0xE004) },
	{ USB_DEVICE(0x0CF3, 0xE005) },
	{ USB_DEVICE(0x0CF3, 0xE006) },
	{ USB_DEVICE(0x13d3, 0x3362) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x13d3, 0x3393) },
	{ USB_DEVICE(0x13d3, 0x3395) },
	{ USB_DEVICE(0x13d3, 0x3402) },
	{ USB_DEVICE(0x13d3, 0x3408) },
	{ USB_DEVICE(0x13d3, 0x3423) },
	{ USB_DEVICE(0x13d3, 0x3432) },
	{ USB_DEVICE(0x13d3, 0x3472) },
	{ USB_DEVICE(0x13d3, 0x3474) },
	{ USB_DEVICE(0x13d3, 0x3487) },
	{ USB_DEVICE(0x13d3, 0x3490) },

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

	/* Atheros AR5BBU22 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE036) },
	{ USB_DEVICE(0x0489, 0xE03C) },

	{ }	/* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, ath3k_table);

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

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },

	/* Atheros AR5BBU22 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },

	{ }	/* Terminating entry */
};

#define USB_REQ_DFU_DNLOAD	1
#define BULK_SIZE		4096
#define FW_HDR_SIZE		20
#define TIMEGAP_USEC_MIN	50
#define TIMEGAP_USEC_MAX	100

static int ath3k_load_firmware(struct usb_device *udev,
				const struct firmware *firmware)
{
	u8 *send_buf;
	int len = 0;
	int err, pipe, 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);
	err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
			      0, 0, send_buf, 20, USB_CTRL_SET_TIMEOUT);
	if (err < 0) {
		BT_ERR("Can't change to loading configuration err");
		goto error;
	}
	sent += 20;
	count -= 20;

	pipe = usb_sndbulkpipe(udev, 0x02);

	while (count) {
		/* workaround the compatibility issue with xHCI controller*/
		usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);

		size = min_t(uint, count, BULK_SIZE);
		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 ret, pipe = 0;
	char *buf;

	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	pipe = usb_rcvctrlpipe(udev, 0);
	ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
			      USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
			      buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);

	*state = *buf;
	kfree(buf);

	return ret;
}

static int ath3k_get_version(struct usb_device *udev,
			struct ath3k_version *version)
{
	int ret, pipe = 0;
	struct ath3k_version *buf;
	const int size = sizeof(*buf);

	buf = kmalloc(size, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	pipe = usb_rcvctrlpipe(udev, 0);
	ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
			      USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
			      buf, size, USB_CTRL_SET_TIMEOUT);

	memcpy(version, buf, size);
	kfree(buf);

	return ret;
}

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

	pipe = usb_sndbulkpipe(udev, 0x02);

	while (count) {
		/* workaround the compatibility issue with xHCI controller*/
		usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);

		size = min_t(uint, count, BULK_SIZE);
		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;
	__u32 pt_rom_version, pt_build_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",
		 le32_to_cpu(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_rom_version = get_unaligned_le32(firmware->data +
					    firmware->size - 8);
	pt_build_version = get_unaligned_le32(firmware->data +
					      firmware->size - 4);

	if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
	    pt_build_version <= le32_to_cpu(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 configuration 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",
		le32_to_cpu(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,
	.disable_hub_initiated_lpm = 1,
};

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>
72dd2b2a	30	#include <asm/unaligned.h>
9670d80a VK	31	#include <net/bluetooth/bluetooth.h>
	32
	33	#define VERSION "1.0"
c3eae82a	34	#define ATH3K_FIRMWARE "ath3k-1.fw"
9670d80a	35
d9f51b51 BS	36	#define ATH3K_DNLOAD 0x01
	37	#define ATH3K_GETSTATE 0x05
	38	#define ATH3K_SET_NORMAL_MODE 0x07
	39	#define ATH3K_GETVERSION 0x09
	40	#define USB_REG_SWITCH_VID_PID 0x0a
	41
	42	#define ATH3K_MODE_MASK 0x3F
	43	#define ATH3K_NORMAL_MODE 0x0E
	44
	45	#define ATH3K_PATCH_UPDATE 0x80
	46	#define ATH3K_SYSCFG_UPDATE 0x40
	47
	48	#define ATH3K_XTAL_FREQ_26M 0x00
	49	#define ATH3K_XTAL_FREQ_40M 0x01
	50	#define ATH3K_XTAL_FREQ_19P2 0x02
	51	#define ATH3K_NAME_LEN 0xFF
	52
	53	struct ath3k_version {
72dd2b2a MH	54	__le32 rom_version;
	55	__le32 build_version;
	56	__le32 ram_version;
	57	__u8 ref_clock;
	58	__u8 reserved[7];
	59	} __packed;
9670d80a	60
3932eb33	61	static const struct usb_device_id ath3k_table[] = {
9670d80a VK	62	/* Atheros AR3011 */
9670d80a VK	63	{ USB_DEVICE(0x0CF3, 0x3000) },
be93112a BS	64
be93112a BS	65	/* Atheros AR3011 with sflash firmware*/
0b880062 AS	66	{ USB_DEVICE(0x0489, 0xE027) },
0b880062 AS	67	{ USB_DEVICE(0x0489, 0xE03D) },
2eeff0b4	68	{ USB_DEVICE(0x04F2, 0xAFF1) },
0b880062	69	{ USB_DEVICE(0x0930, 0x0215) },
be93112a	70	{ USB_DEVICE(0x0CF3, 0x3002) },
6eda541d	71	{ USB_DEVICE(0x0CF3, 0xE019) },
2a7bcccc	72	{ USB_DEVICE(0x13d3, 0x3304) },
be93112a	73
509e7861 CYC	74	/* Atheros AR9285 Malbec with sflash firmware */
509e7861 CYC	75	{ USB_DEVICE(0x03F0, 0x311D) },
d9f51b51 BS	76
d9f51b51 BS	77	/* Atheros AR3012 with sflash firmware*/
0b880062 AS	78	{ USB_DEVICE(0x0489, 0xe04d) },
	79	{ USB_DEVICE(0x0489, 0xe04e) },
	80	{ USB_DEVICE(0x0489, 0xe057) },
	81	{ USB_DEVICE(0x0489, 0xe056) },
	82	{ USB_DEVICE(0x0489, 0xe05f) },
692c062e	83	{ USB_DEVICE(0x0489, 0xe076) },
4b552bc9	84	{ USB_DEVICE(0x0489, 0xe078) },
28c971d8	85	{ USB_DEVICE(0x0489, 0xe095) },
0b880062 AS	86	{ USB_DEVICE(0x04c5, 0x1330) },
	87	{ USB_DEVICE(0x04CA, 0x3004) },
	88	{ USB_DEVICE(0x04CA, 0x3005) },
	89	{ USB_DEVICE(0x04CA, 0x3006) },
1fb4e09a	90	{ USB_DEVICE(0x04CA, 0x3007) },
0b880062 AS	91	{ USB_DEVICE(0x04CA, 0x3008) },
0b880062 AS	92	{ USB_DEVICE(0x04CA, 0x300b) },
7e730c7f	93	{ USB_DEVICE(0x04CA, 0x300d) },
ec0810d2	94	{ USB_DEVICE(0x04CA, 0x300f) },
134d3b35	95	{ USB_DEVICE(0x04CA, 0x3010) },
81d90442	96	{ USB_DEVICE(0x04CA, 0x3014) },
9a84078d	97	{ USB_DEVICE(0x04CA, 0x3018) },
0b880062	98	{ USB_DEVICE(0x0930, 0x0219) },
cd355ff0	99	{ USB_DEVICE(0x0930, 0x021c) },
0b880062	100	{ USB_DEVICE(0x0930, 0x0220) },
89d2975f	101	{ USB_DEVICE(0x0930, 0x0227) },
a735f9e2	102	{ USB_DEVICE(0x0b05, 0x17d0) },
d66629c1	103	{ USB_DEVICE(0x0CF3, 0x0036) },
d9f51b51	104	{ USB_DEVICE(0x0CF3, 0x3004) },
94a32d10	105	{ USB_DEVICE(0x0CF3, 0x3008) },
07c0ea87	106	{ USB_DEVICE(0x0CF3, 0x311D) },
b131237c	107	{ USB_DEVICE(0x0CF3, 0x311E) },
1e56f1eb	108	{ USB_DEVICE(0x0CF3, 0x311F) },
0b880062	109	{ USB_DEVICE(0x0cf3, 0x3121) },
ebaf5795	110	{ USB_DEVICE(0x0CF3, 0x817a) },
18e0afab	111	{ USB_DEVICE(0x0CF3, 0x817b) },
0b880062	112	{ USB_DEVICE(0x0cf3, 0xe003) },
ac71311e	113	{ USB_DEVICE(0x0CF3, 0xE004) },
0a3658cc	114	{ USB_DEVICE(0x0CF3, 0xE005) },
ca79f232	115	{ USB_DEVICE(0x0CF3, 0xE006) },
0b880062 AS	116	{ USB_DEVICE(0x13d3, 0x3362) },
0b880062 AS	117	{ USB_DEVICE(0x13d3, 0x3375) },
eed307e2	118	{ USB_DEVICE(0x13d3, 0x3393) },
609574eb	119	{ USB_DEVICE(0x13d3, 0x3395) },
5b77a1f3	120	{ USB_DEVICE(0x13d3, 0x3402) },
3bb30a7c	121	{ USB_DEVICE(0x13d3, 0x3408) },
033efa92	122	{ USB_DEVICE(0x13d3, 0x3423) },
fa2f1394	123	{ USB_DEVICE(0x13d3, 0x3432) },
75c6aca4	124	{ USB_DEVICE(0x13d3, 0x3472) },
0d0cef61	125	{ USB_DEVICE(0x13d3, 0x3474) },
72f9f8b5	126	{ USB_DEVICE(0x13d3, 0x3487) },
12d86896	127	{ USB_DEVICE(0x13d3, 0x3490) },
d9f51b51	128
e9036e33 CYC	129	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	130	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	131
85d59726	132	/* Atheros AR5BBU22 with sflash firmware */
bc21fde2	133	{ USB_DEVICE(0x0489, 0xE036) },
0b880062	134	{ USB_DEVICE(0x0489, 0xE03C) },
85d59726	135
9670d80a VK	136	{ } /* Terminating entry */
	137	};
	138
	139	MODULE_DEVICE_TABLE(usb, ath3k_table);
	140
d9f51b51 BS	141	#define BTUSB_ATH3012 0x80
	142	/* This table is to load patch and sysconfig files
	143	* for AR3012 */
3932eb33	144	static const struct usb_device_id ath3k_blist_tbl[] = {
d9f51b51 BS	145
d9f51b51 BS	146	/* Atheros AR3012 with sflash firmware*/
0b880062 AS	147	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
	148	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
	149	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
	150	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
	151	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e	152	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9	153	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8	154	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062 AS	155	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
	156	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
	157	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
	158	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a	159	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062 AS	160	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
0b880062 AS	161	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f	162	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2	163	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35	164	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442	165	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
9a84078d	166	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062	167	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0	168	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062	169	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f	170	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2	171	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1	172	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
d9f51b51	173	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10	174	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87	175	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
b131237c	176	{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
1e56f1eb	177	{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
0b880062	178	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795	179	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab	180	{ USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
ac71311e	181	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc	182	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232	183	{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062 AS	184	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
	185	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	186	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2	187	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb	188	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3	189	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c	190	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92	191	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394	192	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4	193	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61	194	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5	195	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896	196	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51	197
85d59726	198	/* Atheros AR5BBU22 with sflash firmware */
bc21fde2	199	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
0b880062	200	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
85d59726	201
d9f51b51 BS	202	{ } /* Terminating entry */
	203	};
	204
9670d80a VK	205	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	206	#define BULK_SIZE 4096
d9f51b51	207	#define FW_HDR_SIZE 20
c561a575 AL	208	#define TIMEGAP_USEC_MIN 50
c561a575 AL	209	#define TIMEGAP_USEC_MAX 100
9670d80a	210
86e09287 AH	211	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	212	const struct firmware *firmware)
9670d80a VK	213	{
9670d80a VK	214	u8 *send_buf;
e9fc7164 DC	215	int len = 0;
e9fc7164 DC	216	int err, pipe, size, sent = 0;
86e09287	217	int count = firmware->size;
9670d80a	218
86e09287	219	BT_DBG("udev %p", udev);
9670d80a	220
86e09287	221	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	222
52a1020e	223	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	224	if (!send_buf) {
	225	BT_ERR("Can't allocate memory chunk for firmware");
	226	return -ENOMEM;
	227	}
	228
	229	memcpy(send_buf, firmware->data, 20);
a08b15e6 VI	230	err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
	231	0, 0, send_buf, 20, USB_CTRL_SET_TIMEOUT);
	232	if (err < 0) {
9670d80a	233	BT_ERR("Can't change to loading configuration err");
86e09287	234	goto error;
9670d80a VK	235	}
	236	sent += 20;
	237	count -= 20;
	238
3abb56de AL	239	pipe = usb_sndbulkpipe(udev, 0x02);
3abb56de AL	240
9670d80a	241	while (count) {
c561a575 AL	242	/* workaround the compatibility issue with xHCI controller*/
	243	usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
	244
9670d80a	245	size = min_t(uint, count, BULK_SIZE);
86e09287	246	memcpy(send_buf, firmware->data + sent, size);
9670d80a	247
86e09287	248	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	249	&len, 3000);
	250
	251	if (err \|\| (len != size)) {
	252	BT_ERR("Error in firmware loading err = %d,"
	253	"len = %d, size = %d", err, len, size);
	254	goto error;
	255	}
	256
	257	sent += size;
	258	count -= size;
	259	}
	260
9670d80a VK	261	error:
	262	kfree(send_buf);
	263	return err;
	264	}
	265
d9f51b51 BS	266	static int ath3k_get_state(struct usb_device udev, unsigned char state)
d9f51b51 BS	267	{
517828a8 SG	268	int ret, pipe = 0;
	269	char *buf;
	270
	271	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
	272	if (!buf)
	273	return -ENOMEM;
d9f51b51 BS	274
d9f51b51 BS	275	pipe = usb_rcvctrlpipe(udev, 0);
517828a8 SG	276	ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	277	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	278	buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
	279
	280	state = buf;
	281	kfree(buf);
	282
	283	return ret;
d9f51b51 BS	284	}
	285
	286	static int ath3k_get_version(struct usb_device *udev,
	287	struct ath3k_version *version)
	288	{
517828a8 SG	289	int ret, pipe = 0;
	290	struct ath3k_version *buf;
	291	const int size = sizeof(*buf);
	292
	293	buf = kmalloc(size, GFP_KERNEL);
	294	if (!buf)
	295	return -ENOMEM;
d9f51b51 BS	296
d9f51b51 BS	297	pipe = usb_rcvctrlpipe(udev, 0);
517828a8 SG	298	ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	299	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	300	buf, size, USB_CTRL_SET_TIMEOUT);
	301
	302	memcpy(version, buf, size);
	303	kfree(buf);
	304
	305	return ret;
d9f51b51 BS	306	}
	307
	308	static int ath3k_load_fwfile(struct usb_device *udev,
	309	const struct firmware *firmware)
	310	{
	311	u8 *send_buf;
e9fc7164 DC	312	int len = 0;
e9fc7164 DC	313	int err, pipe, size, count, sent = 0;
d9f51b51 BS	314	int ret;
	315
	316	count = firmware->size;
	317
52a1020e	318	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	319	if (!send_buf) {
	320	BT_ERR("Can't allocate memory chunk for firmware");
	321	return -ENOMEM;
	322	}
	323
	324	size = min_t(uint, count, FW_HDR_SIZE);
	325	memcpy(send_buf, firmware->data, size);
	326
	327	pipe = usb_sndctrlpipe(udev, 0);
	328	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	329	USB_TYPE_VENDOR, 0, 0, send_buf,
	330	size, USB_CTRL_SET_TIMEOUT);
	331	if (ret < 0) {
	332	BT_ERR("Can't change to loading configuration err");
	333	kfree(send_buf);
	334	return ret;
	335	}
	336
	337	sent += size;
	338	count -= size;
	339
b0c3e138 AL	340	pipe = usb_sndbulkpipe(udev, 0x02);
b0c3e138 AL	341
d9f51b51	342	while (count) {
c561a575 AL	343	/* workaround the compatibility issue with xHCI controller*/
	344	usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
	345
d9f51b51	346	size = min_t(uint, count, BULK_SIZE);
d9f51b51 BS	347	memcpy(send_buf, firmware->data + sent, size);
	348
	349	err = usb_bulk_msg(udev, pipe, send_buf, size,
	350	&len, 3000);
	351	if (err \|\| (len != size)) {
	352	BT_ERR("Error in firmware loading err = %d,"
	353	"len = %d, size = %d", err, len, size);
	354	kfree(send_buf);
	355	return err;
	356	}
	357	sent += size;
	358	count -= size;
	359	}
	360
	361	kfree(send_buf);
	362	return 0;
	363	}
	364
	365	static int ath3k_switch_pid(struct usb_device *udev)
	366	{
	367	int pipe = 0;
	368
	369	pipe = usb_sndctrlpipe(udev, 0);
	370	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	371	USB_TYPE_VENDOR, 0, 0,
	372	NULL, 0, USB_CTRL_SET_TIMEOUT);
	373	}
	374
	375	static int ath3k_set_normal_mode(struct usb_device *udev)
	376	{
	377	unsigned char fw_state;
	378	int pipe = 0, ret;
	379
	380	ret = ath3k_get_state(udev, &fw_state);
	381	if (ret < 0) {
	382	BT_ERR("Can't get state to change to normal mode err");
	383	return ret;
	384	}
	385
	386	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
	387	BT_DBG("firmware was already in normal mode");
	388	return 0;
	389	}
	390
	391	pipe = usb_sndctrlpipe(udev, 0);
	392	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
	393	USB_TYPE_VENDOR, 0, 0,
	394	NULL, 0, USB_CTRL_SET_TIMEOUT);
	395	}
	396
	397	static int ath3k_load_patch(struct usb_device *udev)
	398	{
	399	unsigned char fw_state;
	400	char filename[ATH3K_NAME_LEN] = {0};
	401	const struct firmware *firmware;
72dd2b2a MH	402	struct ath3k_version fw_version;
72dd2b2a MH	403	__u32 pt_rom_version, pt_build_version;
d9f51b51 BS	404	int ret;
	405
	406	ret = ath3k_get_state(udev, &fw_state);
	407	if (ret < 0) {
	408	BT_ERR("Can't get state to change to load ram patch err");
	409	return ret;
	410	}
	411
	412	if (fw_state & ATH3K_PATCH_UPDATE) {
	413	BT_DBG("Patch was already downloaded");
	414	return 0;
	415	}
	416
	417	ret = ath3k_get_version(udev, &fw_version);
	418	if (ret < 0) {
	419	BT_ERR("Can't get version to change to load ram patch err");
	420	return ret;
	421	}
	422
	423	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
72dd2b2a	424	le32_to_cpu(fw_version.rom_version));
d9f51b51 BS	425
	426	ret = request_firmware(&firmware, filename, &udev->dev);
	427	if (ret < 0) {
	428	BT_ERR("Patch file not found %s", filename);
	429	return ret;
	430	}
	431
72dd2b2a MH	432	pt_rom_version = get_unaligned_le32(firmware->data +
	433	firmware->size - 8);
	434	pt_build_version = get_unaligned_le32(firmware->data +
	435	firmware->size - 4);
d9f51b51	436
72dd2b2a MH	437	if (pt_rom_version != le32_to_cpu(fw_version.rom_version) \|\|
72dd2b2a MH	438	pt_build_version <= le32_to_cpu(fw_version.build_version)) {
d9f51b51 BS	439	BT_ERR("Patch file version did not match with firmware");
	440	release_firmware(firmware);
	441	return -EINVAL;
	442	}
	443
	444	ret = ath3k_load_fwfile(udev, firmware);
	445	release_firmware(firmware);
	446
	447	return ret;
	448	}
	449
	450	static int ath3k_load_syscfg(struct usb_device *udev)
	451	{
	452	unsigned char fw_state;
	453	char filename[ATH3K_NAME_LEN] = {0};
	454	const struct firmware *firmware;
	455	struct ath3k_version fw_version;
	456	int clk_value, ret;
	457
	458	ret = ath3k_get_state(udev, &fw_state);
	459	if (ret < 0) {
8a168ca7	460	BT_ERR("Can't get state to change to load configuration err");
d9f51b51 BS	461	return -EBUSY;
	462	}
	463
	464	ret = ath3k_get_version(udev, &fw_version);
	465	if (ret < 0) {
	466	BT_ERR("Can't get version to change to load ram patch err");
	467	return ret;
	468	}
	469
	470	switch (fw_version.ref_clock) {
	471
	472	case ATH3K_XTAL_FREQ_26M:
	473	clk_value = 26;
	474	break;
	475	case ATH3K_XTAL_FREQ_40M:
	476	clk_value = 40;
	477	break;
	478	case ATH3K_XTAL_FREQ_19P2:
	479	clk_value = 19;
	480	break;
	481	default:
	482	clk_value = 0;
	483	break;
	484	}
	485
	486	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
b9e2535a	487	le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
d9f51b51 BS	488
	489	ret = request_firmware(&firmware, filename, &udev->dev);
	490	if (ret < 0) {
	491	BT_ERR("Configuration file not found %s", filename);
	492	return ret;
	493	}
	494
	495	ret = ath3k_load_fwfile(udev, firmware);
	496	release_firmware(firmware);
	497
	498	return ret;
	499	}
	500
9670d80a VK	501	static int ath3k_probe(struct usb_interface *intf,
	502	const struct usb_device_id *id)
	503	{
	504	const struct firmware *firmware;
	505	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	506	int ret;
9670d80a VK	507
	508	BT_DBG("intf %p id %p", intf, id);
	509
	510	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	511	return -ENODEV;
	512
d9f51b51 BS	513	/* match device ID in ath3k blacklist table */
	514	if (!id->driver_info) {
	515	const struct usb_device_id *match;
d2ee9c2e	516
d9f51b51 BS	517	match = usb_match_id(intf, ath3k_blist_tbl);
	518	if (match)
	519	id = match;
	520	}
	521
	522	/* load patch and sysconfig files for AR3012 */
	523	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	524
	525	/* New firmware with patch and sysconfig files already loaded */
	526	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	527	return -ENODEV;
	528
d9f51b51 BS	529	ret = ath3k_load_patch(udev);
	530	if (ret < 0) {
	531	BT_ERR("Loading patch file failed");
	532	return ret;
	533	}
	534	ret = ath3k_load_syscfg(udev);
	535	if (ret < 0) {
	536	BT_ERR("Loading sysconfig file failed");
	537	return ret;
	538	}
	539	ret = ath3k_set_normal_mode(udev);
	540	if (ret < 0) {
	541	BT_ERR("Set normal mode failed");
	542	return ret;
	543	}
	544	ath3k_switch_pid(udev);
	545	return 0;
	546	}
	547
c3eae82a PF	548	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	549	if (ret < 0) {
	550	if (ret == -ENOENT)
	551	BT_ERR("Firmware file \"%s\" not found",
	552	ATH3K_FIRMWARE);
	553	else
	554	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	555	ATH3K_FIRMWARE, ret);
	556	return ret;
9670d80a VK	557	}
9670d80a VK	558
84f0e17f	559	ret = ath3k_load_firmware(udev, firmware);
86e09287	560	release_firmware(firmware);
9670d80a	561
84f0e17f	562	return ret;
9670d80a VK	563	}
	564
	565	static void ath3k_disconnect(struct usb_interface *intf)
	566	{
9670d80a	567	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	568	}
	569
	570	static struct usb_driver ath3k_driver = {
	571	.name = "ath3k",
	572	.probe = ath3k_probe,
	573	.disconnect = ath3k_disconnect,
	574	.id_table = ath3k_table,
e1f12eb6	575	.disable_hub_initiated_lpm = 1,
9670d80a VK	576	};
9670d80a VK	577
93f1508c	578	module_usb_driver(ath3k_driver);
9670d80a VK	579
	580	MODULE_AUTHOR("Atheros Communications");
	581	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	582	MODULE_VERSION(VERSION);
	583	MODULE_LICENSE("GPL");
c3eae82a	584	MODULE_FIRMWARE(ATH3K_FIRMWARE);