[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) },
	{ 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(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) },

	/* 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(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 },

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