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