[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(0x0CF3, 0xE019) },
	{ 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) },
	{ USB_DEVICE(0x0930, 0x0219) },

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