[GitHub/mt8127/android_kernel_alcatel_ttab.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) },

	/* 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 },

	/* 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 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) },
d9f51b51	93
e9036e33 CYC	94	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	95	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	96
85d59726 MG	97	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	98	{ USB_DEVICE(0x0489, 0xE03C) },
bc21fde2	99	{ USB_DEVICE(0x0489, 0xE036) },
85d59726	100
9670d80a VK	101	{ } /* Terminating entry */
	102	};
	103
	104	MODULE_DEVICE_TABLE(usb, ath3k_table);
	105
d9f51b51 BS	106	#define BTUSB_ATH3012 0x80
	107	/* This table is to load patch and sysconfig files
	108	* for AR3012 */
	109	static struct usb_device_id ath3k_blist_tbl[] = {
	110
	111	/* Atheros AR3012 with sflash firmware*/
d66629c1	112	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
d9f51b51	113	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
94a32d10	114	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
07c0ea87	115	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
ebaf5795	116	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
9498ba7a	117	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
3f63c340	118	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
55ed7d4d	119	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
2c262b2a	120	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
f4d6f7dc	121	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
87522a43	122	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
ac71311e	123	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
6c4ae5c2	124	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
2096ae6c	125	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
eed307e2	126	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
3a61eda8	127	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
2582d529	128	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
d9f51b51	129
85d59726 MG	130	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	131	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
bc21fde2	132	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
85d59726	133
d9f51b51 BS	134	{ } /* Terminating entry */
	135	};
	136
9670d80a VK	137	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	138	#define BULK_SIZE 4096
d9f51b51	139	#define FW_HDR_SIZE 20
9670d80a	140
86e09287 AH	141	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	142	const struct firmware *firmware)
9670d80a VK	143	{
	144	u8 *send_buf;
	145	int err, pipe, len, size, sent = 0;
86e09287	146	int count = firmware->size;
9670d80a	147
86e09287	148	BT_DBG("udev %p", udev);
9670d80a	149
86e09287	150	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	151
52a1020e	152	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	153	if (!send_buf) {
	154	BT_ERR("Can't allocate memory chunk for firmware");
	155	return -ENOMEM;
	156	}
	157
	158	memcpy(send_buf, firmware->data, 20);
	159	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	160	USB_REQ_DFU_DNLOAD,
9670d80a VK	161	USB_TYPE_VENDOR, 0, 0,
86e09287	162	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	163	BT_ERR("Can't change to loading configuration err");
86e09287	164	goto error;
9670d80a VK	165	}
	166	sent += 20;
	167	count -= 20;
	168
9670d80a VK	169	while (count) {
9670d80a VK	170	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	171	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	172	memcpy(send_buf, firmware->data + sent, size);
9670d80a	173
86e09287	174	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	175	&len, 3000);
	176
	177	if (err \|\| (len != size)) {
	178	BT_ERR("Error in firmware loading err = %d,"
	179	"len = %d, size = %d", err, len, size);
	180	goto error;
	181	}
	182
	183	sent += size;
	184	count -= size;
	185	}
	186
9670d80a VK	187	error:
	188	kfree(send_buf);
	189	return err;
	190	}
	191
d9f51b51 BS	192	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	193	{
	194	int pipe = 0;
	195
	196	pipe = usb_rcvctrlpipe(udev, 0);
	197	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	198	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	199	state, 0x01, USB_CTRL_SET_TIMEOUT);
	200	}
	201
	202	static int ath3k_get_version(struct usb_device *udev,
	203	struct ath3k_version *version)
	204	{
	205	int pipe = 0;
	206
	207	pipe = usb_rcvctrlpipe(udev, 0);
	208	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	209	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	210	sizeof(struct ath3k_version),
	211	USB_CTRL_SET_TIMEOUT);
	212	}
	213
	214	static int ath3k_load_fwfile(struct usb_device *udev,
	215	const struct firmware *firmware)
	216	{
	217	u8 *send_buf;
	218	int err, pipe, len, size, count, sent = 0;
	219	int ret;
	220
	221	count = firmware->size;
	222
52a1020e	223	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	224	if (!send_buf) {
	225	BT_ERR("Can't allocate memory chunk for firmware");
	226	return -ENOMEM;
	227	}
	228
	229	size = min_t(uint, count, FW_HDR_SIZE);
	230	memcpy(send_buf, firmware->data, size);
	231
	232	pipe = usb_sndctrlpipe(udev, 0);
	233	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	234	USB_TYPE_VENDOR, 0, 0, send_buf,
	235	size, USB_CTRL_SET_TIMEOUT);
	236	if (ret < 0) {
	237	BT_ERR("Can't change to loading configuration err");
	238	kfree(send_buf);
	239	return ret;
	240	}
	241
	242	sent += size;
	243	count -= size;
	244
	245	while (count) {
	246	size = min_t(uint, count, BULK_SIZE);
	247	pipe = usb_sndbulkpipe(udev, 0x02);
	248
	249	memcpy(send_buf, firmware->data + sent, size);
	250
	251	err = usb_bulk_msg(udev, pipe, send_buf, size,
	252	&len, 3000);
	253	if (err \|\| (len != size)) {
	254	BT_ERR("Error in firmware loading err = %d,"
	255	"len = %d, size = %d", err, len, size);
	256	kfree(send_buf);
	257	return err;
	258	}
	259	sent += size;
	260	count -= size;
	261	}
	262
	263	kfree(send_buf);
	264	return 0;
	265	}
	266
	267	static int ath3k_switch_pid(struct usb_device *udev)
	268	{
	269	int pipe = 0;
	270
	271	pipe = usb_sndctrlpipe(udev, 0);
	272	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	273	USB_TYPE_VENDOR, 0, 0,
	274	NULL, 0, USB_CTRL_SET_TIMEOUT);
	275	}
	276
	277	static int ath3k_set_normal_mode(struct usb_device *udev)
	278	{
	279	unsigned char fw_state;
	280	int pipe = 0, ret;
	281
	282	ret = ath3k_get_state(udev, &fw_state);
	283	if (ret < 0) {
	284	BT_ERR("Can't get state to change to normal mode err");
	285	return ret;
	286	}
	287
288	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
289	BT_DBG("firmware was already in normal mode");
290	return 0;
291	}
292
293	pipe = usb_sndctrlpipe(udev, 0);
294	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
295	USB_TYPE_VENDOR, 0, 0,
296	NULL, 0, USB_CTRL_SET_TIMEOUT);
297	}
298
299	static int ath3k_load_patch(struct usb_device *udev)
300	{
301	unsigned char fw_state;
302	char filename[ATH3K_NAME_LEN] = {0};
303	const struct firmware *firmware;
304	struct ath3k_version fw_version, pt_version;
305	int ret;
306
307	ret = ath3k_get_state(udev, &fw_state);
308	if (ret < 0) {
309	BT_ERR("Can't get state to change to load ram patch err");
310	return ret;
311	}
312
313	if (fw_state & ATH3K_PATCH_UPDATE) {
314	BT_DBG("Patch was already downloaded");
315	return 0;
316	}
317
318	ret = ath3k_get_version(udev, &fw_version);
319	if (ret < 0) {
320	BT_ERR("Can't get version to change to load ram patch err");
321	return ret;
322	}
323
324	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
325	fw_version.rom_version);
326
327	ret = request_firmware(&firmware, filename, &udev->dev);
328	if (ret < 0) {
329	BT_ERR("Patch file not found %s", filename);
330	return ret;
331	}
332
333	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
334	pt_version.build_version = (int )
335	(firmware->data + firmware->size - 4);
336
337	if ((pt_version.rom_version != fw_version.rom_version) \|\|
338	(pt_version.build_version <= fw_version.build_version)) {
339	BT_ERR("Patch file version did not match with firmware");
340	release_firmware(firmware);
341	return -EINVAL;
342	}
343
344	ret = ath3k_load_fwfile(udev, firmware);
345	release_firmware(firmware);
346
347	return ret;
348	}
349
350	static int ath3k_load_syscfg(struct usb_device *udev)
351	{
352	unsigned char fw_state;
353	char filename[ATH3K_NAME_LEN] = {0};
354	const struct firmware *firmware;
355	struct ath3k_version fw_version;
356	int clk_value, ret;
357
358	ret = ath3k_get_state(udev, &fw_state);
359	if (ret < 0) {
8a168ca7	360	BT_ERR("Can't get state to change to load configuration err");
d9f51b51 BS	361	return -EBUSY;
	362	}
	363
	364	ret = ath3k_get_version(udev, &fw_version);
	365	if (ret < 0) {
	366	BT_ERR("Can't get version to change to load ram patch err");
	367	return ret;
	368	}
	369
	370	switch (fw_version.ref_clock) {
	371
	372	case ATH3K_XTAL_FREQ_26M:
	373	clk_value = 26;
	374	break;
	375	case ATH3K_XTAL_FREQ_40M:
	376	clk_value = 40;
	377	break;
	378	case ATH3K_XTAL_FREQ_19P2:
	379	clk_value = 19;
	380	break;
	381	default:
	382	clk_value = 0;
	383	break;
	384	}
	385
	386	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
	387	fw_version.rom_version, clk_value, ".dfu");
	388
	389	ret = request_firmware(&firmware, filename, &udev->dev);
	390	if (ret < 0) {
	391	BT_ERR("Configuration file not found %s", filename);
	392	return ret;
	393	}
	394
	395	ret = ath3k_load_fwfile(udev, firmware);
	396	release_firmware(firmware);
	397
	398	return ret;
	399	}
	400
9670d80a VK	401	static int ath3k_probe(struct usb_interface *intf,
	402	const struct usb_device_id *id)
	403	{
	404	const struct firmware *firmware;
	405	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	406	int ret;
9670d80a VK	407
	408	BT_DBG("intf %p id %p", intf, id);
	409
	410	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	411	return -ENODEV;
	412
d9f51b51 BS	413	/* match device ID in ath3k blacklist table */
	414	if (!id->driver_info) {
	415	const struct usb_device_id *match;
	416	match = usb_match_id(intf, ath3k_blist_tbl);
	417	if (match)
	418	id = match;
	419	}
	420
	421	/* load patch and sysconfig files for AR3012 */
	422	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	423
	424	/* New firmware with patch and sysconfig files already loaded */
	425	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	426	return -ENODEV;
	427
d9f51b51 BS	428	ret = ath3k_load_patch(udev);
	429	if (ret < 0) {
	430	BT_ERR("Loading patch file failed");
	431	return ret;
	432	}
	433	ret = ath3k_load_syscfg(udev);
	434	if (ret < 0) {
	435	BT_ERR("Loading sysconfig file failed");
	436	return ret;
	437	}
	438	ret = ath3k_set_normal_mode(udev);
	439	if (ret < 0) {
	440	BT_ERR("Set normal mode failed");
	441	return ret;
	442	}
	443	ath3k_switch_pid(udev);
	444	return 0;
	445	}
	446
c3eae82a PF	447	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	448	if (ret < 0) {
	449	if (ret == -ENOENT)
	450	BT_ERR("Firmware file \"%s\" not found",
	451	ATH3K_FIRMWARE);
	452	else
	453	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	454	ATH3K_FIRMWARE, ret);
	455	return ret;
9670d80a VK	456	}
9670d80a VK	457
84f0e17f	458	ret = ath3k_load_firmware(udev, firmware);
86e09287	459	release_firmware(firmware);
9670d80a	460
84f0e17f	461	return ret;
9670d80a VK	462	}
	463
	464	static void ath3k_disconnect(struct usb_interface *intf)
	465	{
9670d80a	466	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	467	}
	468
	469	static struct usb_driver ath3k_driver = {
	470	.name = "ath3k",
	471	.probe = ath3k_probe,
	472	.disconnect = ath3k_disconnect,
	473	.id_table = ath3k_table,
e1f12eb6	474	.disable_hub_initiated_lpm = 1,
9670d80a VK	475	};
9670d80a VK	476
93f1508c	477	module_usb_driver(ath3k_driver);
9670d80a VK	478
	479	MODULE_AUTHOR("Atheros Communications");
	480	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	481	MODULE_VERSION(VERSION);
	482	MODULE_LICENSE("GPL");
c3eae82a	483	MODULE_FIRMWARE(ATH3K_FIRMWARE);