[linux-2.6-block.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, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x04CA, 0x3006) },
	{ 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, 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(0x04ca, 0x3006), .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
	75	/* Atheros AR3012 with sflash firmware*/
	76	{ USB_DEVICE(0x0CF3, 0x3004) },
07c0ea87	77	{ USB_DEVICE(0x0CF3, 0x311D) },
9498ba7a	78	{ USB_DEVICE(0x13d3, 0x3375) },
55ed7d4d	79	{ USB_DEVICE(0x04CA, 0x3005) },
2c262b2a	80	{ USB_DEVICE(0x04CA, 0x3006) },
87522a43	81	{ USB_DEVICE(0x13d3, 0x3362) },
ac71311e	82	{ USB_DEVICE(0x0CF3, 0xE004) },
6c4ae5c2	83	{ USB_DEVICE(0x0930, 0x0219) },
2096ae6c	84	{ USB_DEVICE(0x0489, 0xe057) },
eed307e2	85	{ USB_DEVICE(0x13d3, 0x3393) },
3a61eda8	86	{ USB_DEVICE(0x0489, 0xe04e) },
2582d529	87	{ USB_DEVICE(0x0489, 0xe056) },
d9f51b51	88
e9036e33 CYC	89	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	90	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	91
85d59726 MG	92	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	93	{ USB_DEVICE(0x0489, 0xE03C) },
bc21fde2	94	{ USB_DEVICE(0x0489, 0xE036) },
85d59726	95
9670d80a VK	96	{ } /* Terminating entry */
	97	};
	98
	99	MODULE_DEVICE_TABLE(usb, ath3k_table);
	100
d9f51b51 BS	101	#define BTUSB_ATH3012 0x80
	102	/* This table is to load patch and sysconfig files
	103	* for AR3012 */
	104	static struct usb_device_id ath3k_blist_tbl[] = {
	105
	106	/* Atheros AR3012 with sflash firmware*/
	107	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
07c0ea87	108	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
9498ba7a	109	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
55ed7d4d	110	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
2c262b2a	111	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
87522a43	112	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
ac71311e	113	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
6c4ae5c2	114	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
2096ae6c	115	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
eed307e2	116	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
3a61eda8	117	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
2582d529	118	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
d9f51b51	119
85d59726 MG	120	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	121	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
bc21fde2	122	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
85d59726	123
d9f51b51 BS	124	{ } /* Terminating entry */
	125	};
	126
9670d80a VK	127	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	128	#define BULK_SIZE 4096
d9f51b51	129	#define FW_HDR_SIZE 20
9670d80a	130
86e09287 AH	131	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	132	const struct firmware *firmware)
9670d80a VK	133	{
	134	u8 *send_buf;
	135	int err, pipe, len, size, sent = 0;
86e09287	136	int count = firmware->size;
9670d80a	137
86e09287	138	BT_DBG("udev %p", udev);
9670d80a	139
86e09287	140	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	141
52a1020e	142	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	143	if (!send_buf) {
	144	BT_ERR("Can't allocate memory chunk for firmware");
	145	return -ENOMEM;
	146	}
	147
	148	memcpy(send_buf, firmware->data, 20);
	149	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	150	USB_REQ_DFU_DNLOAD,
9670d80a VK	151	USB_TYPE_VENDOR, 0, 0,
86e09287	152	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	153	BT_ERR("Can't change to loading configuration err");
86e09287	154	goto error;
9670d80a VK	155	}
	156	sent += 20;
	157	count -= 20;
	158
9670d80a VK	159	while (count) {
9670d80a VK	160	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	161	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	162	memcpy(send_buf, firmware->data + sent, size);
9670d80a	163
86e09287	164	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	165	&len, 3000);
	166
	167	if (err \|\| (len != size)) {
	168	BT_ERR("Error in firmware loading err = %d,"
	169	"len = %d, size = %d", err, len, size);
	170	goto error;
	171	}
	172
	173	sent += size;
	174	count -= size;
	175	}
	176
9670d80a VK	177	error:
	178	kfree(send_buf);
	179	return err;
	180	}
	181
d9f51b51 BS	182	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	183	{
	184	int pipe = 0;
	185
	186	pipe = usb_rcvctrlpipe(udev, 0);
	187	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	188	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	189	state, 0x01, USB_CTRL_SET_TIMEOUT);
	190	}
	191
	192	static int ath3k_get_version(struct usb_device *udev,
	193	struct ath3k_version *version)
	194	{
	195	int pipe = 0;
	196
	197	pipe = usb_rcvctrlpipe(udev, 0);
	198	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	199	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	200	sizeof(struct ath3k_version),
	201	USB_CTRL_SET_TIMEOUT);
	202	}
	203
	204	static int ath3k_load_fwfile(struct usb_device *udev,
	205	const struct firmware *firmware)
	206	{
	207	u8 *send_buf;
	208	int err, pipe, len, size, count, sent = 0;
	209	int ret;
	210
	211	count = firmware->size;
	212
52a1020e	213	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	214	if (!send_buf) {
	215	BT_ERR("Can't allocate memory chunk for firmware");
	216	return -ENOMEM;
	217	}
	218
	219	size = min_t(uint, count, FW_HDR_SIZE);
	220	memcpy(send_buf, firmware->data, size);
	221
	222	pipe = usb_sndctrlpipe(udev, 0);
	223	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	224	USB_TYPE_VENDOR, 0, 0, send_buf,
	225	size, USB_CTRL_SET_TIMEOUT);
	226	if (ret < 0) {
	227	BT_ERR("Can't change to loading configuration err");
	228	kfree(send_buf);
	229	return ret;
	230	}
	231
	232	sent += size;
	233	count -= size;
	234
	235	while (count) {
	236	size = min_t(uint, count, BULK_SIZE);
	237	pipe = usb_sndbulkpipe(udev, 0x02);
	238
	239	memcpy(send_buf, firmware->data + sent, size);
	240
	241	err = usb_bulk_msg(udev, pipe, send_buf, size,
	242	&len, 3000);
	243	if (err \|\| (len != size)) {
	244	BT_ERR("Error in firmware loading err = %d,"
	245	"len = %d, size = %d", err, len, size);
	246	kfree(send_buf);
	247	return err;
	248	}
	249	sent += size;
	250	count -= size;
	251	}
	252
	253	kfree(send_buf);
	254	return 0;
	255	}
	256
	257	static int ath3k_switch_pid(struct usb_device *udev)
	258	{
	259	int pipe = 0;
	260
	261	pipe = usb_sndctrlpipe(udev, 0);
	262	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	263	USB_TYPE_VENDOR, 0, 0,
	264	NULL, 0, USB_CTRL_SET_TIMEOUT);
	265	}
	266
	267	static int ath3k_set_normal_mode(struct usb_device *udev)
	268	{
	269	unsigned char fw_state;
	270	int pipe = 0, ret;
	271
	272	ret = ath3k_get_state(udev, &fw_state);
	273	if (ret < 0) {
	274	BT_ERR("Can't get state to change to normal mode err");
	275	return ret;
	276	}
	277
278	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
279	BT_DBG("firmware was already in normal mode");
280	return 0;
281	}
282
283	pipe = usb_sndctrlpipe(udev, 0);
284	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
285	USB_TYPE_VENDOR, 0, 0,
286	NULL, 0, USB_CTRL_SET_TIMEOUT);
287	}
288
289	static int ath3k_load_patch(struct usb_device *udev)
290	{
291	unsigned char fw_state;
292	char filename[ATH3K_NAME_LEN] = {0};
293	const struct firmware *firmware;
294	struct ath3k_version fw_version, pt_version;
295	int ret;
296
297	ret = ath3k_get_state(udev, &fw_state);
298	if (ret < 0) {
299	BT_ERR("Can't get state to change to load ram patch err");
300	return ret;
301	}
302
303	if (fw_state & ATH3K_PATCH_UPDATE) {
304	BT_DBG("Patch was already downloaded");
305	return 0;
306	}
307
308	ret = ath3k_get_version(udev, &fw_version);
309	if (ret < 0) {
310	BT_ERR("Can't get version to change to load ram patch err");
311	return ret;
312	}
313
314	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
315	fw_version.rom_version);
316
317	ret = request_firmware(&firmware, filename, &udev->dev);
318	if (ret < 0) {
319	BT_ERR("Patch file not found %s", filename);
320	return ret;
321	}
322
323	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
324	pt_version.build_version = (int )
325	(firmware->data + firmware->size - 4);
326
327	if ((pt_version.rom_version != fw_version.rom_version) \|\|
328	(pt_version.build_version <= fw_version.build_version)) {
329	BT_ERR("Patch file version did not match with firmware");
330	release_firmware(firmware);
331	return -EINVAL;
332	}
333
334	ret = ath3k_load_fwfile(udev, firmware);
335	release_firmware(firmware);
336
337	return ret;
338	}
339
340	static int ath3k_load_syscfg(struct usb_device *udev)
341	{
342	unsigned char fw_state;
343	char filename[ATH3K_NAME_LEN] = {0};
344	const struct firmware *firmware;
345	struct ath3k_version fw_version;
346	int clk_value, ret;
347
348	ret = ath3k_get_state(udev, &fw_state);
349	if (ret < 0) {
350	BT_ERR("Can't get state to change to load configration err");
351	return -EBUSY;
352	}
353
354	ret = ath3k_get_version(udev, &fw_version);
355	if (ret < 0) {
356	BT_ERR("Can't get version to change to load ram patch err");
357	return ret;
358	}
359
360	switch (fw_version.ref_clock) {
361
362	case ATH3K_XTAL_FREQ_26M:
363	clk_value = 26;
364	break;
365	case ATH3K_XTAL_FREQ_40M:
366	clk_value = 40;
367	break;
368	case ATH3K_XTAL_FREQ_19P2:
369	clk_value = 19;
370	break;
371	default:
372	clk_value = 0;
373	break;
374	}
375
376	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
377	fw_version.rom_version, clk_value, ".dfu");
378
379	ret = request_firmware(&firmware, filename, &udev->dev);
380	if (ret < 0) {
381	BT_ERR("Configuration file not found %s", filename);
382	return ret;
383	}
384
385	ret = ath3k_load_fwfile(udev, firmware);
386	release_firmware(firmware);
387
388	return ret;
389	}
390
9670d80a VK	391	static int ath3k_probe(struct usb_interface *intf,
	392	const struct usb_device_id *id)
	393	{
	394	const struct firmware *firmware;
	395	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	396	int ret;
9670d80a VK	397
	398	BT_DBG("intf %p id %p", intf, id);
	399
	400	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	401	return -ENODEV;
	402
d9f51b51 BS	403	/* match device ID in ath3k blacklist table */
	404	if (!id->driver_info) {
	405	const struct usb_device_id *match;
	406	match = usb_match_id(intf, ath3k_blist_tbl);
	407	if (match)
	408	id = match;
	409	}
	410
	411	/* load patch and sysconfig files for AR3012 */
	412	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	413
	414	/* New firmware with patch and sysconfig files already loaded */
	415	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	416	return -ENODEV;
	417
d9f51b51 BS	418	ret = ath3k_load_patch(udev);
	419	if (ret < 0) {
	420	BT_ERR("Loading patch file failed");
	421	return ret;
	422	}
	423	ret = ath3k_load_syscfg(udev);
	424	if (ret < 0) {
	425	BT_ERR("Loading sysconfig file failed");
	426	return ret;
	427	}
	428	ret = ath3k_set_normal_mode(udev);
	429	if (ret < 0) {
	430	BT_ERR("Set normal mode failed");
	431	return ret;
	432	}
	433	ath3k_switch_pid(udev);
	434	return 0;
	435	}
	436
c3eae82a PF	437	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	438	if (ret < 0) {
	439	if (ret == -ENOENT)
	440	BT_ERR("Firmware file \"%s\" not found",
	441	ATH3K_FIRMWARE);
	442	else
	443	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	444	ATH3K_FIRMWARE, ret);
	445	return ret;
9670d80a VK	446	}
9670d80a VK	447
84f0e17f	448	ret = ath3k_load_firmware(udev, firmware);
86e09287	449	release_firmware(firmware);
9670d80a	450
84f0e17f	451	return ret;
9670d80a VK	452	}
	453
	454	static void ath3k_disconnect(struct usb_interface *intf)
	455	{
9670d80a	456	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	457	}
	458
	459	static struct usb_driver ath3k_driver = {
	460	.name = "ath3k",
	461	.probe = ath3k_probe,
	462	.disconnect = ath3k_disconnect,
	463	.id_table = ath3k_table,
e1f12eb6	464	.disable_hub_initiated_lpm = 1,
9670d80a VK	465	};
9670d80a VK	466
93f1508c	467	module_usb_driver(ath3k_driver);
9670d80a VK	468
	469	MODULE_AUTHOR("Atheros Communications");
	470	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	471	MODULE_VERSION(VERSION);
	472	MODULE_LICENSE("GPL");
c3eae82a	473	MODULE_FIRMWARE(ATH3K_FIRMWARE);