[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) },
	{ USB_DEVICE(0x0489, 0xe057) },

	/* 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, 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 },
	{ USB_DEVICE(0x0489, 0xe057), .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 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) },
2096ae6c	82	{ USB_DEVICE(0x0489, 0xe057) },
d9f51b51	83
e9036e33 CYC	84	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	85	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	86
85d59726 MG	87	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	88	{ USB_DEVICE(0x0489, 0xE03C) },
bc21fde2	89	{ USB_DEVICE(0x0489, 0xE036) },
85d59726	90
9670d80a VK	91	{ } /* Terminating entry */
	92	};
	93
	94	MODULE_DEVICE_TABLE(usb, ath3k_table);
	95
d9f51b51 BS	96	#define BTUSB_ATH3012 0x80
	97	/* This table is to load patch and sysconfig files
	98	* for AR3012 */
	99	static struct usb_device_id ath3k_blist_tbl[] = {
	100
	101	/* Atheros AR3012 with sflash firmware*/
	102	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
07c0ea87	103	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
9498ba7a	104	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
55ed7d4d	105	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
87522a43	106	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
ac71311e	107	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
6c4ae5c2	108	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
2096ae6c	109	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
d9f51b51	110
85d59726 MG	111	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	112	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
bc21fde2	113	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
85d59726	114
d9f51b51 BS	115	{ } /* Terminating entry */
	116	};
	117
9670d80a VK	118	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	119	#define BULK_SIZE 4096
d9f51b51	120	#define FW_HDR_SIZE 20
9670d80a	121
86e09287 AH	122	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	123	const struct firmware *firmware)
9670d80a VK	124	{
	125	u8 *send_buf;
	126	int err, pipe, len, size, sent = 0;
86e09287	127	int count = firmware->size;
9670d80a	128
86e09287	129	BT_DBG("udev %p", udev);
9670d80a	130
86e09287	131	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	132
52a1020e	133	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	134	if (!send_buf) {
	135	BT_ERR("Can't allocate memory chunk for firmware");
	136	return -ENOMEM;
	137	}
	138
	139	memcpy(send_buf, firmware->data, 20);
	140	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	141	USB_REQ_DFU_DNLOAD,
9670d80a VK	142	USB_TYPE_VENDOR, 0, 0,
86e09287	143	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	144	BT_ERR("Can't change to loading configuration err");
86e09287	145	goto error;
9670d80a VK	146	}
	147	sent += 20;
	148	count -= 20;
	149
9670d80a VK	150	while (count) {
9670d80a VK	151	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	152	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	153	memcpy(send_buf, firmware->data + sent, size);
9670d80a	154
86e09287	155	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	156	&len, 3000);
	157
	158	if (err \|\| (len != size)) {
	159	BT_ERR("Error in firmware loading err = %d,"
	160	"len = %d, size = %d", err, len, size);
	161	goto error;
	162	}
	163
	164	sent += size;
	165	count -= size;
	166	}
	167
9670d80a VK	168	error:
	169	kfree(send_buf);
	170	return err;
	171	}
	172
d9f51b51 BS	173	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	174	{
	175	int pipe = 0;
	176
	177	pipe = usb_rcvctrlpipe(udev, 0);
	178	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	179	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	180	state, 0x01, USB_CTRL_SET_TIMEOUT);
	181	}
	182
	183	static int ath3k_get_version(struct usb_device *udev,
	184	struct ath3k_version *version)
	185	{
	186	int pipe = 0;
	187
	188	pipe = usb_rcvctrlpipe(udev, 0);
	189	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	190	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	191	sizeof(struct ath3k_version),
	192	USB_CTRL_SET_TIMEOUT);
	193	}
	194
	195	static int ath3k_load_fwfile(struct usb_device *udev,
	196	const struct firmware *firmware)
	197	{
	198	u8 *send_buf;
	199	int err, pipe, len, size, count, sent = 0;
	200	int ret;
	201
	202	count = firmware->size;
	203
52a1020e	204	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	205	if (!send_buf) {
	206	BT_ERR("Can't allocate memory chunk for firmware");
	207	return -ENOMEM;
	208	}
	209
	210	size = min_t(uint, count, FW_HDR_SIZE);
	211	memcpy(send_buf, firmware->data, size);
	212
	213	pipe = usb_sndctrlpipe(udev, 0);
	214	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	215	USB_TYPE_VENDOR, 0, 0, send_buf,
	216	size, USB_CTRL_SET_TIMEOUT);
	217	if (ret < 0) {
	218	BT_ERR("Can't change to loading configuration err");
	219	kfree(send_buf);
	220	return ret;
	221	}
	222
	223	sent += size;
	224	count -= size;
	225
	226	while (count) {
	227	size = min_t(uint, count, BULK_SIZE);
	228	pipe = usb_sndbulkpipe(udev, 0x02);
	229
	230	memcpy(send_buf, firmware->data + sent, size);
	231
	232	err = usb_bulk_msg(udev, pipe, send_buf, size,
	233	&len, 3000);
	234	if (err \|\| (len != size)) {
	235	BT_ERR("Error in firmware loading err = %d,"
	236	"len = %d, size = %d", err, len, size);
	237	kfree(send_buf);
	238	return err;
	239	}
	240	sent += size;
	241	count -= size;
	242	}
	243
	244	kfree(send_buf);
	245	return 0;
	246	}
	247
	248	static int ath3k_switch_pid(struct usb_device *udev)
	249	{
	250	int pipe = 0;
	251
	252	pipe = usb_sndctrlpipe(udev, 0);
	253	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	254	USB_TYPE_VENDOR, 0, 0,
	255	NULL, 0, USB_CTRL_SET_TIMEOUT);
	256	}
	257
	258	static int ath3k_set_normal_mode(struct usb_device *udev)
	259	{
	260	unsigned char fw_state;
	261	int pipe = 0, ret;
	262
	263	ret = ath3k_get_state(udev, &fw_state);
	264	if (ret < 0) {
	265	BT_ERR("Can't get state to change to normal mode err");
	266	return ret;
	267	}
	268
269	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
270	BT_DBG("firmware was already in normal mode");
271	return 0;
272	}
273
274	pipe = usb_sndctrlpipe(udev, 0);
275	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
276	USB_TYPE_VENDOR, 0, 0,
277	NULL, 0, USB_CTRL_SET_TIMEOUT);
278	}
279
280	static int ath3k_load_patch(struct usb_device *udev)
281	{
282	unsigned char fw_state;
283	char filename[ATH3K_NAME_LEN] = {0};
284	const struct firmware *firmware;
285	struct ath3k_version fw_version, pt_version;
286	int ret;
287
288	ret = ath3k_get_state(udev, &fw_state);
289	if (ret < 0) {
290	BT_ERR("Can't get state to change to load ram patch err");
291	return ret;
292	}
293
294	if (fw_state & ATH3K_PATCH_UPDATE) {
295	BT_DBG("Patch was already downloaded");
296	return 0;
297	}
298
299	ret = ath3k_get_version(udev, &fw_version);
300	if (ret < 0) {
301	BT_ERR("Can't get version to change to load ram patch err");
302	return ret;
303	}
304
305	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
306	fw_version.rom_version);
307
308	ret = request_firmware(&firmware, filename, &udev->dev);
309	if (ret < 0) {
310	BT_ERR("Patch file not found %s", filename);
311	return ret;
312	}
313
314	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
315	pt_version.build_version = (int )
316	(firmware->data + firmware->size - 4);
317
318	if ((pt_version.rom_version != fw_version.rom_version) \|\|
319	(pt_version.build_version <= fw_version.build_version)) {
320	BT_ERR("Patch file version did not match with firmware");
321	release_firmware(firmware);
322	return -EINVAL;
323	}
324
325	ret = ath3k_load_fwfile(udev, firmware);
326	release_firmware(firmware);
327
328	return ret;
329	}
330
331	static int ath3k_load_syscfg(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;
337	int clk_value, 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 configration err");
342	return -EBUSY;
343	}
344
345	ret = ath3k_get_version(udev, &fw_version);
346	if (ret < 0) {
347	BT_ERR("Can't get version to change to load ram patch err");
348	return ret;
349	}
350
351	switch (fw_version.ref_clock) {
352
353	case ATH3K_XTAL_FREQ_26M:
354	clk_value = 26;
355	break;
356	case ATH3K_XTAL_FREQ_40M:
357	clk_value = 40;
358	break;
359	case ATH3K_XTAL_FREQ_19P2:
360	clk_value = 19;
361	break;
362	default:
363	clk_value = 0;
364	break;
365	}
366
367	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
368	fw_version.rom_version, clk_value, ".dfu");
369
370	ret = request_firmware(&firmware, filename, &udev->dev);
371	if (ret < 0) {
372	BT_ERR("Configuration file not found %s", filename);
373	return ret;
374	}
375
376	ret = ath3k_load_fwfile(udev, firmware);
377	release_firmware(firmware);
378
379	return ret;
380	}
381
9670d80a VK	382	static int ath3k_probe(struct usb_interface *intf,
	383	const struct usb_device_id *id)
	384	{
	385	const struct firmware *firmware;
	386	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	387	int ret;
9670d80a VK	388
	389	BT_DBG("intf %p id %p", intf, id);
	390
	391	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	392	return -ENODEV;
	393
d9f51b51 BS	394	/* match device ID in ath3k blacklist table */
	395	if (!id->driver_info) {
	396	const struct usb_device_id *match;
	397	match = usb_match_id(intf, ath3k_blist_tbl);
	398	if (match)
	399	id = match;
	400	}
	401
	402	/* load patch and sysconfig files for AR3012 */
	403	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	404
	405	/* New firmware with patch and sysconfig files already loaded */
	406	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	407	return -ENODEV;
	408
d9f51b51 BS	409	ret = ath3k_load_patch(udev);
	410	if (ret < 0) {
	411	BT_ERR("Loading patch file failed");
	412	return ret;
	413	}
	414	ret = ath3k_load_syscfg(udev);
	415	if (ret < 0) {
	416	BT_ERR("Loading sysconfig file failed");
	417	return ret;
	418	}
	419	ret = ath3k_set_normal_mode(udev);
	420	if (ret < 0) {
	421	BT_ERR("Set normal mode failed");
	422	return ret;
	423	}
	424	ath3k_switch_pid(udev);
	425	return 0;
	426	}
	427
c3eae82a PF	428	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	429	if (ret < 0) {
	430	if (ret == -ENOENT)
	431	BT_ERR("Firmware file \"%s\" not found",
	432	ATH3K_FIRMWARE);
	433	else
	434	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	435	ATH3K_FIRMWARE, ret);
	436	return ret;
9670d80a VK	437	}
9670d80a VK	438
84f0e17f	439	ret = ath3k_load_firmware(udev, firmware);
86e09287	440	release_firmware(firmware);
9670d80a	441
84f0e17f	442	return ret;
9670d80a VK	443	}
	444
	445	static void ath3k_disconnect(struct usb_interface *intf)
	446	{
9670d80a	447	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	448	}
	449
	450	static struct usb_driver ath3k_driver = {
	451	.name = "ath3k",
	452	.probe = ath3k_probe,
	453	.disconnect = ath3k_disconnect,
	454	.id_table = ath3k_table,
e1f12eb6	455	.disable_hub_initiated_lpm = 1,
9670d80a VK	456	};
9670d80a VK	457
93f1508c	458	module_usb_driver(ath3k_driver);
9670d80a VK	459
	460	MODULE_AUTHOR("Atheros Communications");
	461	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	462	MODULE_VERSION(VERSION);
	463	MODULE_LICENSE("GPL");
c3eae82a	464	MODULE_FIRMWARE(ATH3K_FIRMWARE);