[linux-2.6-block.git] / drivers / bluetooth / ath3k.c

/*
 * Copyright (c) 2008-2009 Atheros Communications Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/usb.h>
#include <net/bluetooth/bluetooth.h>

#define VERSION "1.0"
#define ATH3K_FIRMWARE	"ath3k-1.fw"

#define ATH3K_DNLOAD				0x01
#define ATH3K_GETSTATE				0x05
#define ATH3K_SET_NORMAL_MODE			0x07
#define ATH3K_GETVERSION			0x09
#define USB_REG_SWITCH_VID_PID			0x0a

#define ATH3K_MODE_MASK				0x3F
#define ATH3K_NORMAL_MODE			0x0E

#define ATH3K_PATCH_UPDATE			0x80
#define ATH3K_SYSCFG_UPDATE			0x40

#define ATH3K_XTAL_FREQ_26M			0x00
#define ATH3K_XTAL_FREQ_40M			0x01
#define ATH3K_XTAL_FREQ_19P2			0x02
#define ATH3K_NAME_LEN				0xFF

struct ath3k_version {
	unsigned int	rom_version;
	unsigned int	build_version;
	unsigned int	ram_version;
	unsigned char	ref_clock;
	unsigned char	reserved[0x07];
};

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

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

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

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x0036) },
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x3008) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x0CF3, 0x817a) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x04CA, 0x3004) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x04CA, 0x3006) },
	{ USB_DEVICE(0x04CA, 0x3008) },
	{ USB_DEVICE(0x13d3, 0x3362) },
	{ USB_DEVICE(0x0CF3, 0xE004) },
	{ USB_DEVICE(0x0CF3, 0xE005) },
	{ USB_DEVICE(0x0930, 0x0219) },
	{ USB_DEVICE(0x0489, 0xe057) },
	{ USB_DEVICE(0x13d3, 0x3393) },
	{ USB_DEVICE(0x0489, 0xe04e) },
	{ USB_DEVICE(0x0489, 0xe056) },
	{ USB_DEVICE(0x0489, 0xe04d) },
	{ USB_DEVICE(0x04c5, 0x1330) },
	{ USB_DEVICE(0x13d3, 0x3402) },
	{ USB_DEVICE(0x0cf3, 0x3121) },
	{ USB_DEVICE(0x0cf3, 0xe003) },

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

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

	{ }	/* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, ath3k_table);

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

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 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, 0x817a), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3375), .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, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },

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

	{ }	/* Terminating entry */
};

#define USB_REQ_DFU_DNLOAD	1
#define BULK_SIZE		4096
#define FW_HDR_SIZE		20

static int ath3k_load_firmware(struct usb_device *udev,
				const struct firmware *firmware)
{
	u8 *send_buf;
	int err, pipe, len, size, sent = 0;
	int count = firmware->size;

	BT_DBG("udev %p", udev);

	pipe = usb_sndctrlpipe(udev, 0);

	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
	if (!send_buf) {
		BT_ERR("Can't allocate memory chunk for firmware");
		return -ENOMEM;
	}

	memcpy(send_buf, firmware->data, 20);
	if ((err = usb_control_msg(udev, pipe,
				USB_REQ_DFU_DNLOAD,
				USB_TYPE_VENDOR, 0, 0,
				send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
		BT_ERR("Can't change to loading configuration err");
		goto error;
	}
	sent += 20;
	count -= 20;

	while (count) {
		size = min_t(uint, count, BULK_SIZE);
		pipe = usb_sndbulkpipe(udev, 0x02);
		memcpy(send_buf, firmware->data + sent, size);

		err = usb_bulk_msg(udev, pipe, send_buf, size,
					&len, 3000);

		if (err || (len != size)) {
			BT_ERR("Error in firmware loading err = %d,"
				"len = %d, size = %d", err, len, size);
			goto error;
		}

		sent  += size;
		count -= size;
	}

error:
	kfree(send_buf);
	return err;
}

static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
{
	int 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 err, pipe, len, size, count, sent = 0;
	int ret;

	count = firmware->size;

	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
	if (!send_buf) {
		BT_ERR("Can't allocate memory chunk for firmware");
		return -ENOMEM;
	}

	size = min_t(uint, count, FW_HDR_SIZE);
	memcpy(send_buf, firmware->data, size);

	pipe = usb_sndctrlpipe(udev, 0);
	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
			USB_TYPE_VENDOR, 0, 0, send_buf,
			size, USB_CTRL_SET_TIMEOUT);
	if (ret < 0) {
		BT_ERR("Can't change to loading configuration err");
		kfree(send_buf);
		return ret;
	}

	sent += size;
	count -= size;

	while (count) {
		size = min_t(uint, count, BULK_SIZE);
		pipe = usb_sndbulkpipe(udev, 0x02);

		memcpy(send_buf, firmware->data + sent, size);

		err = usb_bulk_msg(udev, pipe, send_buf, size,
					&len, 3000);
		if (err || (len != size)) {
			BT_ERR("Error in firmware loading err = %d,"
				"len = %d, size = %d", err, len, size);
			kfree(send_buf);
			return err;
		}
		sent  += size;
		count -= size;
	}

	kfree(send_buf);
	return 0;
}

static int ath3k_switch_pid(struct usb_device *udev)
{
	int pipe = 0;

	pipe = usb_sndctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
			USB_TYPE_VENDOR, 0, 0,
			NULL, 0, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_set_normal_mode(struct usb_device *udev)
{
	unsigned char fw_state;
	int pipe = 0, ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to normal mode err");
		return ret;
	}

	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
		BT_DBG("firmware was already in normal mode");
		return 0;
	}

	pipe = usb_sndctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
			USB_TYPE_VENDOR, 0, 0,
			NULL, 0, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_load_patch(struct usb_device *udev)
{
	unsigned char fw_state;
	char filename[ATH3K_NAME_LEN] = {0};
	const struct firmware *firmware;
	struct ath3k_version fw_version, pt_version;
	int ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to load ram patch err");
		return ret;
	}

	if (fw_state & ATH3K_PATCH_UPDATE) {
		BT_DBG("Patch was already downloaded");
		return 0;
	}

	ret = ath3k_get_version(udev, &fw_version);
	if (ret < 0) {
		BT_ERR("Can't get version to change to load ram patch err");
		return ret;
	}

	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
		fw_version.rom_version);

	ret = request_firmware(&firmware, filename, &udev->dev);
	if (ret < 0) {
		BT_ERR("Patch file not found %s", filename);
		return ret;
	}

	pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
	pt_version.build_version = *(int *)
		(firmware->data + firmware->size - 4);

	if ((pt_version.rom_version != fw_version.rom_version) ||
		(pt_version.build_version <= fw_version.build_version)) {
		BT_ERR("Patch file version did not match with firmware");
		release_firmware(firmware);
		return -EINVAL;
	}

	ret = ath3k_load_fwfile(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static int ath3k_load_syscfg(struct usb_device *udev)
{
	unsigned char fw_state;
	char filename[ATH3K_NAME_LEN] = {0};
	const struct firmware *firmware;
	struct ath3k_version fw_version;
	int clk_value, ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to load 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",
		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>
	30	#include <net/bluetooth/bluetooth.h>
	31
	32	#define VERSION "1.0"
c3eae82a	33	#define ATH3K_FIRMWARE "ath3k-1.fw"
9670d80a	34
d9f51b51 BS	35	#define ATH3K_DNLOAD 0x01
	36	#define ATH3K_GETSTATE 0x05
	37	#define ATH3K_SET_NORMAL_MODE 0x07
	38	#define ATH3K_GETVERSION 0x09
	39	#define USB_REG_SWITCH_VID_PID 0x0a
	40
	41	#define ATH3K_MODE_MASK 0x3F
	42	#define ATH3K_NORMAL_MODE 0x0E
	43
	44	#define ATH3K_PATCH_UPDATE 0x80
	45	#define ATH3K_SYSCFG_UPDATE 0x40
	46
	47	#define ATH3K_XTAL_FREQ_26M 0x00
	48	#define ATH3K_XTAL_FREQ_40M 0x01
	49	#define ATH3K_XTAL_FREQ_19P2 0x02
	50	#define ATH3K_NAME_LEN 0xFF
	51
	52	struct ath3k_version {
	53	unsigned int rom_version;
	54	unsigned int build_version;
	55	unsigned int ram_version;
	56	unsigned char ref_clock;
	57	unsigned char reserved[0x07];
	58	};
9670d80a VK	59
	60	static struct usb_device_id ath3k_table[] = {
	61	/* Atheros AR3011 */
	62	{ USB_DEVICE(0x0CF3, 0x3000) },
be93112a BS	63
	64	/* Atheros AR3011 with sflash firmware*/
	65	{ USB_DEVICE(0x0CF3, 0x3002) },
6eda541d	66	{ USB_DEVICE(0x0CF3, 0xE019) },
2a7bcccc	67	{ USB_DEVICE(0x13d3, 0x3304) },
8e7c3d2e	68	{ USB_DEVICE(0x0930, 0x0215) },
6b6ba88b	69	{ USB_DEVICE(0x0489, 0xE03D) },
acd94544	70	{ USB_DEVICE(0x0489, 0xE027) },
be93112a	71
509e7861 CYC	72	/* Atheros AR9285 Malbec with sflash firmware */
509e7861 CYC	73	{ USB_DEVICE(0x03F0, 0x311D) },
d9f51b51 BS	74
d9f51b51 BS	75	/* Atheros AR3012 with sflash firmware*/
d66629c1	76	{ USB_DEVICE(0x0CF3, 0x0036) },
d9f51b51	77	{ USB_DEVICE(0x0CF3, 0x3004) },
94a32d10	78	{ USB_DEVICE(0x0CF3, 0x3008) },
07c0ea87	79	{ USB_DEVICE(0x0CF3, 0x311D) },
ebaf5795	80	{ USB_DEVICE(0x0CF3, 0x817a) },
9498ba7a	81	{ USB_DEVICE(0x13d3, 0x3375) },
3f63c340	82	{ USB_DEVICE(0x04CA, 0x3004) },
55ed7d4d	83	{ USB_DEVICE(0x04CA, 0x3005) },
2c262b2a	84	{ USB_DEVICE(0x04CA, 0x3006) },
f4d6f7dc	85	{ USB_DEVICE(0x04CA, 0x3008) },
87522a43	86	{ USB_DEVICE(0x13d3, 0x3362) },
ac71311e	87	{ USB_DEVICE(0x0CF3, 0xE004) },
0a3658cc	88	{ USB_DEVICE(0x0CF3, 0xE005) },
6c4ae5c2	89	{ USB_DEVICE(0x0930, 0x0219) },
2096ae6c	90	{ USB_DEVICE(0x0489, 0xe057) },
eed307e2	91	{ USB_DEVICE(0x13d3, 0x3393) },
3a61eda8	92	{ USB_DEVICE(0x0489, 0xe04e) },
2582d529	93	{ USB_DEVICE(0x0489, 0xe056) },
0fc110f4	94	{ USB_DEVICE(0x0489, 0xe04d) },
84eb2ae1	95	{ USB_DEVICE(0x04c5, 0x1330) },
5b77a1f3	96	{ USB_DEVICE(0x13d3, 0x3402) },
1ebd0b21	97	{ USB_DEVICE(0x0cf3, 0x3121) },
1d5b569e	98	{ USB_DEVICE(0x0cf3, 0xe003) },
d9f51b51	99
e9036e33 CYC	100	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	101	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	102
85d59726 MG	103	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	104	{ USB_DEVICE(0x0489, 0xE03C) },
bc21fde2	105	{ USB_DEVICE(0x0489, 0xE036) },
85d59726	106
9670d80a VK	107	{ } /* Terminating entry */
	108	};
	109
	110	MODULE_DEVICE_TABLE(usb, ath3k_table);
	111
d9f51b51 BS	112	#define BTUSB_ATH3012 0x80
	113	/* This table is to load patch and sysconfig files
	114	* for AR3012 */
	115	static struct usb_device_id ath3k_blist_tbl[] = {
	116
	117	/* Atheros AR3012 with sflash firmware*/
d66629c1	118	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
d9f51b51	119	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10	120	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87	121	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
ebaf5795	122	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
9498ba7a	123	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
3f63c340	124	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
55ed7d4d	125	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
2c262b2a	126	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
f4d6f7dc	127	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
87522a43	128	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
ac71311e	129	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
0a3658cc	130	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
6c4ae5c2	131	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
2096ae6c	132	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
eed307e2	133	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
3a61eda8	134	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
2582d529	135	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
0fc110f4	136	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
84eb2ae1	137	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
5b77a1f3	138	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
1ebd0b21	139	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
1d5b569e	140	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
d9f51b51	141
85d59726 MG	142	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	143	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
bc21fde2	144	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
85d59726	145
d9f51b51 BS	146	{ } /* Terminating entry */
	147	};
	148
9670d80a VK	149	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	150	#define BULK_SIZE 4096
d9f51b51	151	#define FW_HDR_SIZE 20
9670d80a	152
86e09287 AH	153	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	154	const struct firmware *firmware)
9670d80a VK	155	{
	156	u8 *send_buf;
	157	int err, pipe, len, size, sent = 0;
86e09287	158	int count = firmware->size;
9670d80a	159
86e09287	160	BT_DBG("udev %p", udev);
9670d80a	161
86e09287	162	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	163
52a1020e	164	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	165	if (!send_buf) {
	166	BT_ERR("Can't allocate memory chunk for firmware");
	167	return -ENOMEM;
	168	}
	169
	170	memcpy(send_buf, firmware->data, 20);
	171	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	172	USB_REQ_DFU_DNLOAD,
9670d80a VK	173	USB_TYPE_VENDOR, 0, 0,
86e09287	174	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	175	BT_ERR("Can't change to loading configuration err");
86e09287	176	goto error;
9670d80a VK	177	}
	178	sent += 20;
	179	count -= 20;
	180
9670d80a VK	181	while (count) {
9670d80a VK	182	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	183	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	184	memcpy(send_buf, firmware->data + sent, size);
9670d80a	185
86e09287	186	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	187	&len, 3000);
	188
	189	if (err \|\| (len != size)) {
	190	BT_ERR("Error in firmware loading err = %d,"
	191	"len = %d, size = %d", err, len, size);
	192	goto error;
	193	}
	194
	195	sent += size;
	196	count -= size;
	197	}
	198
9670d80a VK	199	error:
	200	kfree(send_buf);
	201	return err;
	202	}
	203
d9f51b51 BS	204	static int ath3k_get_state(struct usb_device udev, unsigned char state)
d9f51b51 BS	205	{
517828a8 SG	206	int ret, pipe = 0;
	207	char *buf;
	208
	209	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
	210	if (!buf)
	211	return -ENOMEM;
d9f51b51 BS	212
d9f51b51 BS	213	pipe = usb_rcvctrlpipe(udev, 0);
517828a8 SG	214	ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	215	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	216	buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
	217
	218	state = buf;
	219	kfree(buf);
	220
	221	return ret;
d9f51b51 BS	222	}
	223
	224	static int ath3k_get_version(struct usb_device *udev,
	225	struct ath3k_version *version)
	226	{
517828a8 SG	227	int ret, pipe = 0;
	228	struct ath3k_version *buf;
	229	const int size = sizeof(*buf);
	230
	231	buf = kmalloc(size, GFP_KERNEL);
	232	if (!buf)
	233	return -ENOMEM;
d9f51b51 BS	234
d9f51b51 BS	235	pipe = usb_rcvctrlpipe(udev, 0);
517828a8 SG	236	ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	237	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	238	buf, size, USB_CTRL_SET_TIMEOUT);
	239
	240	memcpy(version, buf, size);
	241	kfree(buf);
	242
	243	return ret;
d9f51b51 BS	244	}
	245
	246	static int ath3k_load_fwfile(struct usb_device *udev,
	247	const struct firmware *firmware)
	248	{
	249	u8 *send_buf;
	250	int err, pipe, len, size, count, sent = 0;
	251	int ret;
	252
	253	count = firmware->size;
	254
52a1020e	255	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	256	if (!send_buf) {
	257	BT_ERR("Can't allocate memory chunk for firmware");
	258	return -ENOMEM;
	259	}
	260
	261	size = min_t(uint, count, FW_HDR_SIZE);
	262	memcpy(send_buf, firmware->data, size);
	263
	264	pipe = usb_sndctrlpipe(udev, 0);
	265	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	266	USB_TYPE_VENDOR, 0, 0, send_buf,
	267	size, USB_CTRL_SET_TIMEOUT);
	268	if (ret < 0) {
	269	BT_ERR("Can't change to loading configuration err");
	270	kfree(send_buf);
	271	return ret;
	272	}
	273
	274	sent += size;
	275	count -= size;
	276
	277	while (count) {
	278	size = min_t(uint, count, BULK_SIZE);
	279	pipe = usb_sndbulkpipe(udev, 0x02);
	280
	281	memcpy(send_buf, firmware->data + sent, size);
	282
	283	err = usb_bulk_msg(udev, pipe, send_buf, size,
	284	&len, 3000);
	285	if (err \|\| (len != size)) {
	286	BT_ERR("Error in firmware loading err = %d,"
	287	"len = %d, size = %d", err, len, size);
	288	kfree(send_buf);
	289	return err;
	290	}
	291	sent += size;
	292	count -= size;
	293	}
	294
	295	kfree(send_buf);
	296	return 0;
	297	}
	298
	299	static int ath3k_switch_pid(struct usb_device *udev)
	300	{
	301	int pipe = 0;
	302
	303	pipe = usb_sndctrlpipe(udev, 0);
	304	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	305	USB_TYPE_VENDOR, 0, 0,
	306	NULL, 0, USB_CTRL_SET_TIMEOUT);
	307	}
	308
	309	static int ath3k_set_normal_mode(struct usb_device *udev)
	310	{
	311	unsigned char fw_state;
	312	int pipe = 0, ret;
	313
	314	ret = ath3k_get_state(udev, &fw_state);
	315	if (ret < 0) {
	316	BT_ERR("Can't get state to change to normal mode err");
	317	return ret;
	318	}
	319
320	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
321	BT_DBG("firmware was already in normal mode");
322	return 0;
323	}
324
325	pipe = usb_sndctrlpipe(udev, 0);
326	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
327	USB_TYPE_VENDOR, 0, 0,
328	NULL, 0, USB_CTRL_SET_TIMEOUT);
329	}
330
331	static int ath3k_load_patch(struct usb_device *udev)
332	{
333	unsigned char fw_state;
334	char filename[ATH3K_NAME_LEN] = {0};
335	const struct firmware *firmware;
336	struct ath3k_version fw_version, pt_version;
337	int ret;
338
339	ret = ath3k_get_state(udev, &fw_state);
340	if (ret < 0) {
341	BT_ERR("Can't get state to change to load ram patch err");
342	return ret;
343	}
344
345	if (fw_state & ATH3K_PATCH_UPDATE) {
346	BT_DBG("Patch was already downloaded");
347	return 0;
348	}
349
350	ret = ath3k_get_version(udev, &fw_version);
351	if (ret < 0) {
352	BT_ERR("Can't get version to change to load ram patch err");
353	return ret;
354	}
355
356	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
357	fw_version.rom_version);
358
359	ret = request_firmware(&firmware, filename, &udev->dev);
360	if (ret < 0) {
361	BT_ERR("Patch file not found %s", filename);
362	return ret;
363	}
364
365	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
366	pt_version.build_version = (int )
367	(firmware->data + firmware->size - 4);
368
369	if ((pt_version.rom_version != fw_version.rom_version) \|\|
370	(pt_version.build_version <= fw_version.build_version)) {
371	BT_ERR("Patch file version did not match with firmware");
372	release_firmware(firmware);
373	return -EINVAL;
374	}
375
376	ret = ath3k_load_fwfile(udev, firmware);
377	release_firmware(firmware);
378
379	return ret;
380	}
381
382	static int ath3k_load_syscfg(struct usb_device *udev)
383	{
384	unsigned char fw_state;
385	char filename[ATH3K_NAME_LEN] = {0};
386	const struct firmware *firmware;
387	struct ath3k_version fw_version;
388	int clk_value, ret;
389
390	ret = ath3k_get_state(udev, &fw_state);
391	if (ret < 0) {
8a168ca7	392	BT_ERR("Can't get state to change to load configuration err");
d9f51b51 BS	393	return -EBUSY;
	394	}
	395
	396	ret = ath3k_get_version(udev, &fw_version);
	397	if (ret < 0) {
	398	BT_ERR("Can't get version to change to load ram patch err");
	399	return ret;
	400	}
	401
	402	switch (fw_version.ref_clock) {
	403
	404	case ATH3K_XTAL_FREQ_26M:
	405	clk_value = 26;
	406	break;
	407	case ATH3K_XTAL_FREQ_40M:
	408	clk_value = 40;
	409	break;
	410	case ATH3K_XTAL_FREQ_19P2:
	411	clk_value = 19;
	412	break;
	413	default:
	414	clk_value = 0;
	415	break;
	416	}
	417
	418	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
	419	fw_version.rom_version, clk_value, ".dfu");
	420
	421	ret = request_firmware(&firmware, filename, &udev->dev);
	422	if (ret < 0) {
	423	BT_ERR("Configuration file not found %s", filename);
	424	return ret;
	425	}
	426
	427	ret = ath3k_load_fwfile(udev, firmware);
	428	release_firmware(firmware);
	429
	430	return ret;
	431	}
	432
9670d80a VK	433	static int ath3k_probe(struct usb_interface *intf,
	434	const struct usb_device_id *id)
	435	{
	436	const struct firmware *firmware;
	437	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	438	int ret;
9670d80a VK	439
	440	BT_DBG("intf %p id %p", intf, id);
	441
	442	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	443	return -ENODEV;
	444
d9f51b51 BS	445	/* match device ID in ath3k blacklist table */
	446	if (!id->driver_info) {
	447	const struct usb_device_id *match;
	448	match = usb_match_id(intf, ath3k_blist_tbl);
	449	if (match)
	450	id = match;
	451	}
	452
	453	/* load patch and sysconfig files for AR3012 */
	454	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	455
	456	/* New firmware with patch and sysconfig files already loaded */
	457	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	458	return -ENODEV;
	459
d9f51b51 BS	460	ret = ath3k_load_patch(udev);
	461	if (ret < 0) {
	462	BT_ERR("Loading patch file failed");
	463	return ret;
	464	}
	465	ret = ath3k_load_syscfg(udev);
	466	if (ret < 0) {
	467	BT_ERR("Loading sysconfig file failed");
	468	return ret;
	469	}
	470	ret = ath3k_set_normal_mode(udev);
	471	if (ret < 0) {
	472	BT_ERR("Set normal mode failed");
	473	return ret;
	474	}
	475	ath3k_switch_pid(udev);
	476	return 0;
	477	}
	478
c3eae82a PF	479	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	480	if (ret < 0) {
	481	if (ret == -ENOENT)
	482	BT_ERR("Firmware file \"%s\" not found",
	483	ATH3K_FIRMWARE);
	484	else
	485	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	486	ATH3K_FIRMWARE, ret);
	487	return ret;
9670d80a VK	488	}
9670d80a VK	489
84f0e17f	490	ret = ath3k_load_firmware(udev, firmware);
86e09287	491	release_firmware(firmware);
9670d80a	492
84f0e17f	493	return ret;
9670d80a VK	494	}
	495
	496	static void ath3k_disconnect(struct usb_interface *intf)
	497	{
9670d80a	498	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	499	}
	500
	501	static struct usb_driver ath3k_driver = {
	502	.name = "ath3k",
	503	.probe = ath3k_probe,
	504	.disconnect = ath3k_disconnect,
	505	.id_table = ath3k_table,
e1f12eb6	506	.disable_hub_initiated_lpm = 1,
9670d80a VK	507	};
9670d80a VK	508
93f1508c	509	module_usb_driver(ath3k_driver);
9670d80a VK	510
	511	MODULE_AUTHOR("Atheros Communications");
	512	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	513	MODULE_VERSION(VERSION);
	514	MODULE_LICENSE("GPL");
c3eae82a	515	MODULE_FIRMWARE(ATH3K_FIRMWARE);