[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(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) },

	/* 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(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 },

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