[deliverable/linux.git] / drivers / bluetooth / ath3k.c

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


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

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

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

#define ATH3K_MODE_MASK				0x3F
#define ATH3K_NORMAL_MODE			0x0E

#define ATH3K_PATCH_UPDATE			0x80
#define ATH3K_SYSCFG_UPDATE			0x40

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

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

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

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

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

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x13d3, 0x3362) },
	{ USB_DEVICE(0x0CF3, 0xE004) },

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

	/* Atheros AR5BBU22 with sflash firmware */
	{ 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 struct usb_device_id ath3k_blist_tbl[] = {

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },

	/* Atheros AR5BBU22 with sflash firmware */
	{ 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

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

	BT_DBG("udev %p", udev);

	pipe = usb_sndctrlpipe(udev, 0);

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

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

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

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

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

		sent  += size;
		count -= size;
	}

error:
	kfree(send_buf);
	return err;
}

static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
{
	int pipe = 0;

	pipe = usb_rcvctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
			state, 0x01, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_get_version(struct usb_device *udev,
			struct ath3k_version *version)
{
	int pipe = 0;

	pipe = usb_rcvctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
			sizeof(struct ath3k_version),
			USB_CTRL_SET_TIMEOUT);
}

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

	count = firmware->size;

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

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

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

	sent += size;
	count -= size;

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

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

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

	kfree(send_buf);
	return 0;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	return ret;
}

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

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

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

	switch (fw_version.ref_clock) {

	case ATH3K_XTAL_FREQ_26M:
		clk_value = 26;
		break;
	case ATH3K_XTAL_FREQ_40M:
		clk_value = 40;
		break;
	case ATH3K_XTAL_FREQ_19P2:
		clk_value = 19;
		break;
	default:
		clk_value = 0;
		break;
	}

	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
		fw_version.rom_version, clk_value, ".dfu");

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

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

	return ret;
}

static int ath3k_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	const struct firmware *firmware;
	struct usb_device *udev = interface_to_usbdev(intf);
	int ret;

	BT_DBG("intf %p id %p", intf, id);

	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
		return -ENODEV;

	/* match device ID in ath3k blacklist table */
	if (!id->driver_info) {
		const struct usb_device_id *match;
		match = usb_match_id(intf, ath3k_blist_tbl);
		if (match)
			id = match;
	}

	/* load patch and sysconfig files for AR3012 */
	if (id->driver_info & BTUSB_ATH3012) {

		/* New firmware with patch and sysconfig files already loaded */
		if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
			return -ENODEV;

		ret = ath3k_load_patch(udev);
		if (ret < 0) {
			BT_ERR("Loading patch file failed");
			return ret;
		}
		ret = ath3k_load_syscfg(udev);
		if (ret < 0) {
			BT_ERR("Loading sysconfig file failed");
			return ret;
		}
		ret = ath3k_set_normal_mode(udev);
		if (ret < 0) {
			BT_ERR("Set normal mode failed");
			return ret;
		}
		ath3k_switch_pid(udev);
		return 0;
	}

	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	if (ret < 0) {
		if (ret == -ENOENT)
			BT_ERR("Firmware file \"%s\" not found",
							ATH3K_FIRMWARE);
		else
			BT_ERR("Firmware file \"%s\" request failed (err=%d)",
							ATH3K_FIRMWARE, ret);
		return ret;
	}

	ret = ath3k_load_firmware(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static void ath3k_disconnect(struct usb_interface *intf)
{
	BT_DBG("ath3k_disconnect intf %p", intf);
}

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