Release 4.12 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 <asm/unaligned.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 {
	
__le32	rom_version;
	
__le32	build_version;
	
__le32	ram_version;
	
__u8	ref_clock;
	
__u8	reserved[7];
} __packed;
static const struct usb_device_id ath3k_table[] = {
	/* Atheros AR3011 */
	{ USB_DEVICE(0x0CF3, 0x3000) },
	/* Atheros AR3011 with sflash firmware*/
	{ USB_DEVICE(0x0489, 0xE027) },
	{ USB_DEVICE(0x0489, 0xE03D) },
	{ USB_DEVICE(0x04F2, 0xAFF1) },
	{ USB_DEVICE(0x0930, 0x0215) },
	{ USB_DEVICE(0x0CF3, 0x3002) },
	{ USB_DEVICE(0x0CF3, 0xE019) },
	{ USB_DEVICE(0x13d3, 0x3304) },
	/* Atheros AR9285 Malbec with sflash firmware */
	{ USB_DEVICE(0x03F0, 0x311D) },
	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0489, 0xe04d) },
	{ USB_DEVICE(0x0489, 0xe04e) },
	{ USB_DEVICE(0x0489, 0xe057) },
	{ USB_DEVICE(0x0489, 0xe056) },
	{ USB_DEVICE(0x0489, 0xe05f) },
	{ USB_DEVICE(0x0489, 0xe076) },
	{ USB_DEVICE(0x0489, 0xe078) },
	{ USB_DEVICE(0x0489, 0xe095) },
	{ USB_DEVICE(0x04c5, 0x1330) },
	{ USB_DEVICE(0x04CA, 0x3004) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x04CA, 0x3006) },
	{ USB_DEVICE(0x04CA, 0x3007) },
	{ USB_DEVICE(0x04CA, 0x3008) },
	{ USB_DEVICE(0x04CA, 0x300b) },
	{ USB_DEVICE(0x04CA, 0x300d) },
	{ USB_DEVICE(0x04CA, 0x300f) },
	{ USB_DEVICE(0x04CA, 0x3010) },
	{ USB_DEVICE(0x04CA, 0x3014) },
	{ USB_DEVICE(0x04CA, 0x3018) },
	{ USB_DEVICE(0x0930, 0x0219) },
	{ USB_DEVICE(0x0930, 0x021c) },
	{ USB_DEVICE(0x0930, 0x0220) },
	{ USB_DEVICE(0x0930, 0x0227) },
	{ USB_DEVICE(0x0b05, 0x17d0) },
	{ USB_DEVICE(0x0CF3, 0x0036) },
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x3008) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x0CF3, 0x311E) },
	{ USB_DEVICE(0x0CF3, 0x311F) },
	{ USB_DEVICE(0x0cf3, 0x3121) },
	{ USB_DEVICE(0x0CF3, 0x817a) },
	{ USB_DEVICE(0x0CF3, 0x817b) },
	{ USB_DEVICE(0x0cf3, 0xe003) },
	{ USB_DEVICE(0x0CF3, 0xE004) },
	{ USB_DEVICE(0x0CF3, 0xE005) },
	{ USB_DEVICE(0x0CF3, 0xE006) },
	{ USB_DEVICE(0x13d3, 0x3362) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x13d3, 0x3393) },
	{ USB_DEVICE(0x13d3, 0x3395) },
	{ USB_DEVICE(0x13d3, 0x3402) },
	{ USB_DEVICE(0x13d3, 0x3408) },
	{ USB_DEVICE(0x13d3, 0x3423) },
	{ USB_DEVICE(0x13d3, 0x3432) },
	{ USB_DEVICE(0x13d3, 0x3472) },
	{ USB_DEVICE(0x13d3, 0x3474) },
	{ USB_DEVICE(0x13d3, 0x3487) },
	{ USB_DEVICE(0x13d3, 0x3490) },
	/* Atheros AR5BBU12 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE02C) },
	/* Atheros AR5BBU22 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE036) },
	{ USB_DEVICE(0x0489, 0xE03C) },
	{ }	/* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, ath3k_table);
#define BTUSB_ATH3012		0x80
/* This table is to load patch and sysconfig files
 * for AR3012 */
static const struct usb_device_id ath3k_blist_tbl[] = {
	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04c5, 0x1330), .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, 0x3007), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
	{ 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, 0x311E), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
	/* Atheros AR5BBU22 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
	{ }	/* Terminating entry */
};
#define USB_REQ_DFU_DNLOAD	1
#define BULK_SIZE		4096
#define FW_HDR_SIZE		20
#define TIMEGAP_USEC_MIN	50
#define TIMEGAP_USEC_MAX	100
static int ath3k_load_firmware(struct usb_device *udev,
				const struct firmware *firmware)
{
	u8 *send_buf;
	int len = 0;
	int err, pipe, 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);
	err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
			      0, 0, send_buf, 20, USB_CTRL_SET_TIMEOUT);
	if (err < 0) {
		BT_ERR("Can't change to loading configuration err");
		goto error;
	}
	sent += 20;
	count -= 20;
	pipe = usb_sndbulkpipe(udev, 0x02);
	while (count) {
		/* workaround the compatibility issue with xHCI controller*/
		usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
		size = min_t(uint, count, BULK_SIZE);
		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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Vikram Kandukuri | 170 | 67.19% | 1 | 14.29% | 
| Alexander Holler | 56 | 22.13% | 1 | 14.29% | 
| Adam Lee | 17 | 6.72% | 2 | 28.57% | 
| Dan Carpenter | 5 | 1.98% | 1 | 14.29% | 
| Valentin Ilie | 4 | 1.58% | 1 | 14.29% | 
| David Herrmann | 1 | 0.40% | 1 | 14.29% | 
| Total | 253 | 100.00% | 7 | 100.00% | 
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Stanislaw Gruszka | 50 | 49.50% | 1 | 33.33% | 
| Bala Shanmugam | 41 | 40.59% | 1 | 33.33% | 
| Vikram Kandukuri | 10 | 9.90% | 1 | 33.33% | 
| Total | 101 | 100.00% | 3 | 100.00% | 
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Stanislaw Gruszka | 56 | 52.34% | 1 | 25.00% | 
| Bala Shanmugam | 37 | 34.58% | 1 | 25.00% | 
| Vikram Kandukuri | 12 | 11.21% | 1 | 25.00% | 
| Rogério Brito | 2 | 1.87% | 1 | 25.00% | 
| Total | 107 | 100.00% | 4 | 100.00% | 
static int ath3k_load_fwfile(struct usb_device *udev,
		const struct firmware *firmware)
{
	u8 *send_buf;
	int len = 0;
	int err, pipe, 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;
	pipe = usb_sndbulkpipe(udev, 0x02);
	while (count) {
		/* workaround the compatibility issue with xHCI controller*/
		usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
		size = min_t(uint, count, BULK_SIZE);
		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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 246 | 91.45% | 1 | 20.00% | 
| Adam Lee | 17 | 6.32% | 2 | 40.00% | 
| Dan Carpenter | 5 | 1.86% | 1 | 20.00% | 
| David Herrmann | 1 | 0.37% | 1 | 20.00% | 
| Total | 269 | 100.00% | 5 | 100.00% | 
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 47 | 100.00% | 1 | 100.00% | 
| Total | 47 | 100.00% | 1 | 100.00% | 
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 99 | 100.00% | 1 | 100.00% | 
| Total | 99 | 100.00% | 1 | 100.00% | 
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;
	__u32 pt_rom_version, pt_build_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",
		 le32_to_cpu(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_rom_version = get_unaligned_le32(firmware->data +
					    firmware->size - 8);
	pt_build_version = get_unaligned_le32(firmware->data +
					      firmware->size - 4);
	if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
	    pt_build_version <= le32_to_cpu(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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 220 | 90.53% | 1 | 33.33% | 
| Marcel Holtmann | 20 | 8.23% | 1 | 33.33% | 
| Peng Chen | 3 | 1.23% | 1 | 33.33% | 
| Total | 243 | 100.00% | 3 | 100.00% | 
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",
		le32_to_cpu(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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 197 | 98.01% | 1 | 33.33% | 
| Peng Chen | 3 | 1.49% | 1 | 33.33% | 
| Masanari Iida | 1 | 0.50% | 1 | 33.33% | 
| Total | 201 | 100.00% | 3 | 100.00% | 
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 200 | 74.91% | 1 | 16.67% | 
| Paul Fertser | 28 | 10.49% | 1 | 16.67% | 
| Steven.Li | 18 | 6.74% | 1 | 16.67% | 
| Vikram Kandukuri | 16 | 5.99% | 1 | 16.67% | 
| Rogério Brito | 3 | 1.12% | 1 | 16.67% | 
| Alexander Holler | 2 | 0.75% | 1 | 16.67% | 
| Total | 267 | 100.00% | 6 | 100.00% | 
static void ath3k_disconnect(struct usb_interface *intf)
{
	BT_DBG("ath3k_disconnect intf %p", intf);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Vikram Kandukuri | 18 | 100.00% | 1 | 100.00% | 
| Total | 18 | 100.00% | 1 | 100.00% | 
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);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Bala Shanmugam | 1205 | 38.44% | 2 | 2.50% | 
| Vikram Kandukuri | 351 | 11.20% | 1 | 1.25% | 
| Dmitry Tunin | 322 | 10.27% | 14 | 17.50% | 
| AceLan Kao | 156 | 4.98% | 8 | 10.00% | 
| Andy Shevchenko | 139 | 4.43% | 2 | 2.50% | 
| Stanislaw Gruszka | 106 | 3.38% | 1 | 1.25% | 
| Sujith Manoharan | 59 | 1.88% | 3 | 3.75% | 
| Alexander Holler | 58 | 1.85% | 1 | 1.25% | 
| Peng Chen | 49 | 1.56% | 3 | 3.75% | 
| Anantha Krishnan | 46 | 1.47% | 2 | 2.50% | 
| Adam Lee | 42 | 1.34% | 3 | 3.75% | 
| Yu-Chen (Al) Cho | 39 | 1.24% | 3 | 3.75% | 
| Oliver Neukum | 38 | 1.21% | 2 | 2.50% | 
| Ming Lei | 38 | 1.21% | 2 | 2.50% | 
| Paul Fertser | 33 | 1.05% | 1 | 1.25% | 
| Marcel Holtmann | 32 | 1.02% | 2 | 2.50% | 
| Lauro Costa | 23 | 0.73% | 1 | 1.25% | 
| Wen-chien Jesse Sung | 23 | 0.73% | 1 | 1.25% | 
| Michael Gruetzner | 23 | 0.73% | 1 | 1.25% | 
| Vincent Zwanenburg | 23 | 0.73% | 1 | 1.25% | 
| Janne Heikkinen | 23 | 0.73% | 1 | 1.25% | 
| Mohammed Habibulla | 23 | 0.73% | 1 | 1.25% | 
| Giancarlo Formicuccia | 22 | 0.70% | 1 | 1.25% | 
| Yevgeniy Melnichuk | 21 | 0.67% | 1 | 1.25% | 
| Daniel Schaal | 21 | 0.67% | 1 | 1.25% | 
| Josh Boyer | 21 | 0.67% | 1 | 1.25% | 
| Noguchi Kazutosi | 19 | 0.61% | 1 | 1.25% | 
| Eran | 19 | 0.61% | 1 | 1.25% | 
| Thomas Loo | 19 | 0.61% | 1 | 1.25% | 
| Sunguk Lee | 19 | 0.61% | 1 | 1.25% | 
| Sergio Cambra | 19 | 0.61% | 1 | 1.25% | 
| Steven.Li | 18 | 0.57% | 1 | 1.25% | 
| Marco Piazza | 13 | 0.41% | 1 | 1.25% | 
| Dan Carpenter | 10 | 0.32% | 1 | 1.25% | 
| Alexander Ploumistos | 9 | 0.29% | 1 | 1.25% | 
| Marek Vašut | 7 | 0.22% | 1 | 1.25% | 
| Marcos Chaparro | 7 | 0.22% | 1 | 1.25% | 
| Ricardo Mendoza | 7 | 0.22% | 1 | 1.25% | 
| Keng-Yu Lin | 7 | 0.22% | 1 | 1.25% | 
| Andy Ross | 7 | 0.22% | 1 | 1.25% | 
| Sarah Sharp | 5 | 0.16% | 1 | 1.25% | 
| Rogério Brito | 5 | 0.16% | 1 | 1.25% | 
| Valentin Ilie | 4 | 0.13% | 1 | 1.25% | 
| David Herrmann | 2 | 0.06% | 1 | 1.25% | 
| Greg Kroah-Hartman | 2 | 0.06% | 1 | 1.25% | 
| Masanari Iida | 1 | 0.03% | 1 | 1.25% | 
| Total | 3135 | 100.00% | 80 | 100.00% | 
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