[mirror_ubuntu-eoan-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 */
};

static inline void ath3k_log_failed_loading(int err, int len, int size,
					    int count)
{
	BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
	       err, len, size, count);
}

#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, FW_HDR_SIZE);
	err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
			      0, 0, send_buf, FW_HDR_SIZE,
			      USB_CTRL_SET_TIMEOUT);
	if (err < 0) {
		BT_ERR("Can't change to loading configuration err");
		goto error;
	}
	sent += FW_HDR_SIZE;
	count -= FW_HDR_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)) {
			ath3k_log_failed_loading(err, len, size, count);
			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)) {
			ath3k_log_failed_loading(err, len, size, count);
			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];
	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];
	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("%s intf %p", __func__, 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) },
441ad62d	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
d9f51b51 BS	142	/* This table is to load patch and sysconfig files
d98422cb DR	143	* for AR3012
d98422cb DR	144	*/
3932eb33	145	static const struct usb_device_id ath3k_blist_tbl[] = {
d9f51b51 BS	146
d9f51b51 BS	147	/* Atheros AR3012 with sflash firmware*/
0b880062 AS	148	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
	149	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
	150	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
	151	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
	152	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
692c062e	153	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
4b552bc9	154	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
28c971d8	155	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
0b880062 AS	156	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
	157	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
	158	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
	159	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
1fb4e09a	160	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
0b880062 AS	161	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
0b880062 AS	162	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
7e730c7f	163	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
ec0810d2	164	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
134d3b35	165	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
81d90442	166	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
441ad62d	167	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
0b880062	168	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
cd355ff0	169	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
0b880062	170	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
89d2975f	171	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
a735f9e2	172	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
d66629c1	173	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
d9f51b51	174	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10	175	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87	176	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
b131237c	177	{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
1e56f1eb	178	{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
0b880062	179	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
ebaf5795	180	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
18e0afab	181	{ USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
ac71311e	182	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc	183	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
ca79f232	184	{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
0b880062 AS	185	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
	186	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	187	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
eed307e2	188	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
609574eb	189	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
5b77a1f3	190	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
3bb30a7c	191	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
033efa92	192	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
fa2f1394	193	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
75c6aca4	194	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
0d0cef61	195	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
72f9f8b5	196	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
12d86896	197	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
d9f51b51	198
85d59726	199	/* Atheros AR5BBU22 with sflash firmware */
bc21fde2	200	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
0b880062	201	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
85d59726	202
d9f51b51 BS	203	{ } /* Terminating entry */
	204	};
	205
d6b372f6 LCR	206	static inline void ath3k_log_failed_loading(int err, int len, int size,
d6b372f6 LCR	207	int count)
3d08f43c	208	{
d6b372f6 LCR	209	BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
d6b372f6 LCR	210	err, len, size, count);
3d08f43c MZ	211	}
3d08f43c MZ	212
9670d80a VK	213	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	214	#define BULK_SIZE 4096
d9f51b51	215	#define FW_HDR_SIZE 20
c561a575 AL	216	#define TIMEGAP_USEC_MIN 50
c561a575 AL	217	#define TIMEGAP_USEC_MAX 100
9670d80a	218
86e09287 AH	219	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	220	const struct firmware *firmware)
9670d80a VK	221	{
9670d80a VK	222	u8 *send_buf;
e9fc7164 DC	223	int len = 0;
e9fc7164 DC	224	int err, pipe, size, sent = 0;
86e09287	225	int count = firmware->size;
9670d80a	226
86e09287	227	BT_DBG("udev %p", udev);
9670d80a	228
86e09287	229	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	230
52a1020e	231	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	232	if (!send_buf) {
	233	BT_ERR("Can't allocate memory chunk for firmware");
	234	return -ENOMEM;
	235	}
	236
8b077bdb	237	memcpy(send_buf, firmware->data, FW_HDR_SIZE);
a08b15e6	238	err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
8b077bdb MZ	239	0, 0, send_buf, FW_HDR_SIZE,
8b077bdb MZ	240	USB_CTRL_SET_TIMEOUT);
a08b15e6	241	if (err < 0) {
9670d80a	242	BT_ERR("Can't change to loading configuration err");
86e09287	243	goto error;
9670d80a	244	}
8b077bdb MZ	245	sent += FW_HDR_SIZE;
8b077bdb MZ	246	count -= FW_HDR_SIZE;
9670d80a	247
3abb56de AL	248	pipe = usb_sndbulkpipe(udev, 0x02);
3abb56de AL	249
9670d80a	250	while (count) {
c561a575 AL	251	/* workaround the compatibility issue with xHCI controller*/
	252	usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
	253
9670d80a	254	size = min_t(uint, count, BULK_SIZE);
86e09287	255	memcpy(send_buf, firmware->data + sent, size);
9670d80a	256
86e09287	257	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	258	&len, 3000);
	259
	260	if (err \|\| (len != size)) {
d6b372f6	261	ath3k_log_failed_loading(err, len, size, count);
9670d80a VK	262	goto error;
	263	}
	264
	265	sent += size;
	266	count -= size;
	267	}
	268
9670d80a VK	269	error:
	270	kfree(send_buf);
	271	return err;
	272	}
	273
d9f51b51 BS	274	static int ath3k_get_state(struct usb_device udev, unsigned char state)
d9f51b51 BS	275	{
517828a8 SG	276	int ret, pipe = 0;
	277	char *buf;
	278
	279	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
	280	if (!buf)
	281	return -ENOMEM;
d9f51b51 BS	282
d9f51b51 BS	283	pipe = usb_rcvctrlpipe(udev, 0);
517828a8 SG	284	ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	285	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	286	buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
	287
	288	state = buf;
	289	kfree(buf);
	290
	291	return ret;
d9f51b51 BS	292	}
	293
	294	static int ath3k_get_version(struct usb_device *udev,
	295	struct ath3k_version *version)
	296	{
517828a8 SG	297	int ret, pipe = 0;
	298	struct ath3k_version *buf;
	299	const int size = sizeof(*buf);
	300
	301	buf = kmalloc(size, GFP_KERNEL);
	302	if (!buf)
	303	return -ENOMEM;
d9f51b51 BS	304
d9f51b51 BS	305	pipe = usb_rcvctrlpipe(udev, 0);
517828a8 SG	306	ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	307	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	308	buf, size, USB_CTRL_SET_TIMEOUT);
	309
	310	memcpy(version, buf, size);
	311	kfree(buf);
	312
	313	return ret;
d9f51b51 BS	314	}
	315
	316	static int ath3k_load_fwfile(struct usb_device *udev,
	317	const struct firmware *firmware)
	318	{
	319	u8 *send_buf;
e9fc7164 DC	320	int len = 0;
e9fc7164 DC	321	int err, pipe, size, count, sent = 0;
d9f51b51 BS	322	int ret;
	323
	324	count = firmware->size;
	325
52a1020e	326	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	327	if (!send_buf) {
	328	BT_ERR("Can't allocate memory chunk for firmware");
	329	return -ENOMEM;
	330	}
	331
	332	size = min_t(uint, count, FW_HDR_SIZE);
	333	memcpy(send_buf, firmware->data, size);
	334
	335	pipe = usb_sndctrlpipe(udev, 0);
	336	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	337	USB_TYPE_VENDOR, 0, 0, send_buf,
	338	size, USB_CTRL_SET_TIMEOUT);
	339	if (ret < 0) {
	340	BT_ERR("Can't change to loading configuration err");
	341	kfree(send_buf);
	342	return ret;
	343	}
	344
	345	sent += size;
	346	count -= size;
	347
b0c3e138 AL	348	pipe = usb_sndbulkpipe(udev, 0x02);
b0c3e138 AL	349
d9f51b51	350	while (count) {
c561a575 AL	351	/* workaround the compatibility issue with xHCI controller*/
	352	usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
	353
d9f51b51	354	size = min_t(uint, count, BULK_SIZE);
d9f51b51 BS	355	memcpy(send_buf, firmware->data + sent, size);
	356
	357	err = usb_bulk_msg(udev, pipe, send_buf, size,
	358	&len, 3000);
	359	if (err \|\| (len != size)) {
d6b372f6	360	ath3k_log_failed_loading(err, len, size, count);
d9f51b51 BS	361	kfree(send_buf);
	362	return err;
	363	}
	364	sent += size;
	365	count -= size;
	366	}
	367
	368	kfree(send_buf);
	369	return 0;
	370	}
	371
	372	static int ath3k_switch_pid(struct usb_device *udev)
	373	{
	374	int pipe = 0;
	375
	376	pipe = usb_sndctrlpipe(udev, 0);
	377	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	378	USB_TYPE_VENDOR, 0, 0,
	379	NULL, 0, USB_CTRL_SET_TIMEOUT);
	380	}
	381
	382	static int ath3k_set_normal_mode(struct usb_device *udev)
	383	{
	384	unsigned char fw_state;
	385	int pipe = 0, ret;
	386
	387	ret = ath3k_get_state(udev, &fw_state);
	388	if (ret < 0) {
	389	BT_ERR("Can't get state to change to normal mode err");
	390	return ret;
	391	}
	392
	393	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
	394	BT_DBG("firmware was already in normal mode");
	395	return 0;
	396	}
	397
	398	pipe = usb_sndctrlpipe(udev, 0);
	399	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
	400	USB_TYPE_VENDOR, 0, 0,
	401	NULL, 0, USB_CTRL_SET_TIMEOUT);
	402	}
	403
	404	static int ath3k_load_patch(struct usb_device *udev)
	405	{
	406	unsigned char fw_state;
b3baa242	407	char filename[ATH3K_NAME_LEN];
d9f51b51	408	const struct firmware *firmware;
72dd2b2a MH	409	struct ath3k_version fw_version;
72dd2b2a MH	410	__u32 pt_rom_version, pt_build_version;
d9f51b51 BS	411	int ret;
	412
	413	ret = ath3k_get_state(udev, &fw_state);
	414	if (ret < 0) {
	415	BT_ERR("Can't get state to change to load ram patch err");
	416	return ret;
	417	}
	418
	419	if (fw_state & ATH3K_PATCH_UPDATE) {
	420	BT_DBG("Patch was already downloaded");
	421	return 0;
	422	}
	423
	424	ret = ath3k_get_version(udev, &fw_version);
	425	if (ret < 0) {
	426	BT_ERR("Can't get version to change to load ram patch err");
	427	return ret;
	428	}
	429
	430	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
72dd2b2a	431	le32_to_cpu(fw_version.rom_version));
d9f51b51 BS	432
	433	ret = request_firmware(&firmware, filename, &udev->dev);
	434	if (ret < 0) {
	435	BT_ERR("Patch file not found %s", filename);
	436	return ret;
	437	}
	438
72dd2b2a MH	439	pt_rom_version = get_unaligned_le32(firmware->data +
	440	firmware->size - 8);
	441	pt_build_version = get_unaligned_le32(firmware->data +
	442	firmware->size - 4);
d9f51b51	443
72dd2b2a MH	444	if (pt_rom_version != le32_to_cpu(fw_version.rom_version) \|\|
72dd2b2a MH	445	pt_build_version <= le32_to_cpu(fw_version.build_version)) {
d9f51b51 BS	446	BT_ERR("Patch file version did not match with firmware");
	447	release_firmware(firmware);
	448	return -EINVAL;
	449	}
	450
	451	ret = ath3k_load_fwfile(udev, firmware);
	452	release_firmware(firmware);
	453
	454	return ret;
	455	}
	456
	457	static int ath3k_load_syscfg(struct usb_device *udev)
	458	{
	459	unsigned char fw_state;
b3baa242	460	char filename[ATH3K_NAME_LEN];
d9f51b51 BS	461	const struct firmware *firmware;
	462	struct ath3k_version fw_version;
	463	int clk_value, ret;
	464
	465	ret = ath3k_get_state(udev, &fw_state);
	466	if (ret < 0) {
8a168ca7	467	BT_ERR("Can't get state to change to load configuration err");
d9f51b51 BS	468	return -EBUSY;
	469	}
	470
	471	ret = ath3k_get_version(udev, &fw_version);
	472	if (ret < 0) {
	473	BT_ERR("Can't get version to change to load ram patch err");
	474	return ret;
	475	}
	476
	477	switch (fw_version.ref_clock) {
	478
	479	case ATH3K_XTAL_FREQ_26M:
	480	clk_value = 26;
	481	break;
	482	case ATH3K_XTAL_FREQ_40M:
	483	clk_value = 40;
	484	break;
	485	case ATH3K_XTAL_FREQ_19P2:
	486	clk_value = 19;
	487	break;
	488	default:
	489	clk_value = 0;
	490	break;
	491	}
	492
	493	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
b9e2535a	494	le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
d9f51b51 BS	495
	496	ret = request_firmware(&firmware, filename, &udev->dev);
	497	if (ret < 0) {
	498	BT_ERR("Configuration file not found %s", filename);
	499	return ret;
	500	}
	501
	502	ret = ath3k_load_fwfile(udev, firmware);
	503	release_firmware(firmware);
	504
	505	return ret;
	506	}
	507
9670d80a VK	508	static int ath3k_probe(struct usb_interface *intf,
	509	const struct usb_device_id *id)
	510	{
	511	const struct firmware *firmware;
	512	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	513	int ret;
9670d80a VK	514
	515	BT_DBG("intf %p id %p", intf, id);
	516
	517	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	518	return -ENODEV;
	519
d9f51b51 BS	520	/* match device ID in ath3k blacklist table */
	521	if (!id->driver_info) {
	522	const struct usb_device_id *match;
d2ee9c2e	523
d9f51b51 BS	524	match = usb_match_id(intf, ath3k_blist_tbl);
	525	if (match)
	526	id = match;
	527	}
	528
	529	/* load patch and sysconfig files for AR3012 */
	530	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	531	/* New firmware with patch and sysconfig files already loaded */
	532	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	533	return -ENODEV;
	534
d9f51b51 BS	535	ret = ath3k_load_patch(udev);
	536	if (ret < 0) {
	537	BT_ERR("Loading patch file failed");
	538	return ret;
	539	}
	540	ret = ath3k_load_syscfg(udev);
	541	if (ret < 0) {
	542	BT_ERR("Loading sysconfig file failed");
	543	return ret;
	544	}
	545	ret = ath3k_set_normal_mode(udev);
	546	if (ret < 0) {
	547	BT_ERR("Set normal mode failed");
	548	return ret;
	549	}
	550	ath3k_switch_pid(udev);
	551	return 0;
	552	}
	553
c3eae82a PF	554	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	555	if (ret < 0) {
	556	if (ret == -ENOENT)
	557	BT_ERR("Firmware file \"%s\" not found",
	558	ATH3K_FIRMWARE);
	559	else
	560	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	561	ATH3K_FIRMWARE, ret);
	562	return ret;
9670d80a VK	563	}
9670d80a VK	564
84f0e17f	565	ret = ath3k_load_firmware(udev, firmware);
86e09287	566	release_firmware(firmware);
9670d80a	567
84f0e17f	568	return ret;
9670d80a VK	569	}
	570
	571	static void ath3k_disconnect(struct usb_interface *intf)
	572	{
0a21963a	573	BT_DBG("%s intf %p", __func__, intf);
9670d80a VK	574	}
	575
	576	static struct usb_driver ath3k_driver = {
	577	.name = "ath3k",
	578	.probe = ath3k_probe,
	579	.disconnect = ath3k_disconnect,
	580	.id_table = ath3k_table,
e1f12eb6	581	.disable_hub_initiated_lpm = 1,
9670d80a VK	582	};
9670d80a VK	583
93f1508c	584	module_usb_driver(ath3k_driver);
9670d80a VK	585
	586	MODULE_AUTHOR("Atheros Communications");
	587	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	588	MODULE_VERSION(VERSION);
	589	MODULE_LICENSE("GPL");
c3eae82a	590	MODULE_FIRMWARE(ATH3K_FIRMWARE);