/*
   * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
   *
   * Copyright (C) 2011-2013 ASIX
   *
   * 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, see <http://www.gnu.org/licenses/>.
   */
  
  #include <linux/module.h>
  #include <linux/etherdevice.h>
  #include <linux/mii.h>
  #include <linux/usb.h>
  #include <linux/crc32.h>
  #include <linux/usb/usbnet.h>
  #include <uapi/linux/mdio.h>
  #include <linux/mdio.h>
  
  #define AX88179_PHY_ID				0x03
  #define AX_EEPROM_LEN				0x100
  #define AX88179_EEPROM_MAGIC			0x17900b95
  #define AX_MCAST_FLTSIZE			8
  #define AX_MAX_MCAST				64
  #define AX_INT_PPLS_LINK			((u32)BIT(16))
  #define AX_RXHDR_L4_TYPE_MASK			0x1c
  #define AX_RXHDR_L4_TYPE_UDP			4
  #define AX_RXHDR_L4_TYPE_TCP			16
  #define AX_RXHDR_L3CSUM_ERR			2
  #define AX_RXHDR_L4CSUM_ERR			1
  #define AX_RXHDR_CRC_ERR			((u32)BIT(29))
  #define AX_RXHDR_DROP_ERR			((u32)BIT(31))
  #define AX_ACCESS_MAC				0x01
  #define AX_ACCESS_PHY				0x02
  #define AX_ACCESS_EEPROM			0x04
  #define AX_ACCESS_EFUS				0x05
  #define AX_PAUSE_WATERLVL_HIGH			0x54
  #define AX_PAUSE_WATERLVL_LOW			0x55
  
  #define PHYSICAL_LINK_STATUS			0x02
  	#define	AX_USB_SS		0x04
  	#define	AX_USB_HS		0x02
  
  #define GENERAL_STATUS				0x03
  /* Check AX88179 version. UA1:Bit2 = 0,  UA2:Bit2 = 1 */
  	#define	AX_SECLD		0x04
  
  #define AX_SROM_ADDR				0x07
  #define AX_SROM_CMD				0x0a
  	#define EEP_RD			0x04
  	#define EEP_BUSY		0x10
  
  #define AX_SROM_DATA_LOW			0x08
  #define AX_SROM_DATA_HIGH			0x09
  
  #define AX_RX_CTL				0x0b
  	#define AX_RX_CTL_DROPCRCERR	0x0100
  	#define AX_RX_CTL_IPE		0x0200
  	#define AX_RX_CTL_START		0x0080
  	#define AX_RX_CTL_AP		0x0020
  	#define AX_RX_CTL_AM		0x0010
  	#define AX_RX_CTL_AB		0x0008
  	#define AX_RX_CTL_AMALL		0x0002
  	#define AX_RX_CTL_PRO		0x0001
  	#define AX_RX_CTL_STOP		0x0000
  
  #define AX_NODE_ID				0x10
  #define AX_MULFLTARY				0x16
  
  #define AX_MEDIUM_STATUS_MODE			0x22
  	#define AX_MEDIUM_GIGAMODE	0x01
  	#define AX_MEDIUM_FULL_DUPLEX	0x02
  	#define AX_MEDIUM_EN_125MHZ	0x08
  	#define AX_MEDIUM_RXFLOW_CTRLEN	0x10
  	#define AX_MEDIUM_TXFLOW_CTRLEN	0x20
  	#define AX_MEDIUM_RECEIVE_EN	0x100
  	#define AX_MEDIUM_PS		0x200
  	#define AX_MEDIUM_JUMBO_EN	0x8040
  
  #define AX_MONITOR_MOD				0x24
  	#define AX_MONITOR_MODE_RWLC	0x02
  	#define AX_MONITOR_MODE_RWMP	0x04
  	#define AX_MONITOR_MODE_PMEPOL	0x20
  	#define AX_MONITOR_MODE_PMETYPE	0x40
  
  #define AX_GPIO_CTRL				0x25
  	#define AX_GPIO_CTRL_GPIO3EN	0x80
  	#define AX_GPIO_CTRL_GPIO2EN	0x40
  	#define AX_GPIO_CTRL_GPIO1EN	0x20
  
  #define AX_PHYPWR_RSTCTL			0x26
  	#define AX_PHYPWR_RSTCTL_BZ	0x0010
  	#define AX_PHYPWR_RSTCTL_IPRL	0x0020
  	#define AX_PHYPWR_RSTCTL_AT	0x1000
  
  #define AX_RX_BULKIN_QCTRL			0x2e
  #define AX_CLK_SELECT				0x33
  	#define AX_CLK_SELECT_BCS	0x01
  	#define AX_CLK_SELECT_ACS	0x02
  	#define AX_CLK_SELECT_ULR	0x08
  
  #define AX_RXCOE_CTL				0x34
  	#define AX_RXCOE_IP		0x01
  	#define AX_RXCOE_TCP		0x02
  	#define AX_RXCOE_UDP		0x04
  	#define AX_RXCOE_TCPV6		0x20
  	#define AX_RXCOE_UDPV6		0x40
  
  #define AX_TXCOE_CTL				0x35
  	#define AX_TXCOE_IP		0x01
  	#define AX_TXCOE_TCP		0x02
  	#define AX_TXCOE_UDP		0x04
  	#define AX_TXCOE_TCPV6		0x20
  	#define AX_TXCOE_UDPV6		0x40
  
  #define AX_LEDCTRL				0x73
  
  #define GMII_PHY_PHYSR				0x11
  	#define GMII_PHY_PHYSR_SMASK	0xc000
  	#define GMII_PHY_PHYSR_GIGA	0x8000
  	#define GMII_PHY_PHYSR_100	0x4000
  	#define GMII_PHY_PHYSR_FULL	0x2000
  	#define GMII_PHY_PHYSR_LINK	0x400
  
  #define GMII_LED_ACT				0x1a
  	#define	GMII_LED_ACTIVE_MASK	0xff8f
  	#define	GMII_LED0_ACTIVE	BIT(4)
  	#define	GMII_LED1_ACTIVE	BIT(5)
  	#define	GMII_LED2_ACTIVE	BIT(6)
  
  #define GMII_LED_LINK				0x1c
  	#define	GMII_LED_LINK_MASK	0xf888
  	#define	GMII_LED0_LINK_10	BIT(0)
  	#define	GMII_LED0_LINK_100	BIT(1)
  	#define	GMII_LED0_LINK_1000	BIT(2)
  	#define	GMII_LED1_LINK_10	BIT(4)
  	#define	GMII_LED1_LINK_100	BIT(5)
  	#define	GMII_LED1_LINK_1000	BIT(6)
  	#define	GMII_LED2_LINK_10	BIT(8)
  	#define	GMII_LED2_LINK_100	BIT(9)
  	#define	GMII_LED2_LINK_1000	BIT(10)
  	#define	LED0_ACTIVE		BIT(0)
  	#define	LED0_LINK_10		BIT(1)
  	#define	LED0_LINK_100		BIT(2)
  	#define	LED0_LINK_1000		BIT(3)
  	#define	LED0_FD			BIT(4)
  	#define	LED0_USB3_MASK		0x001f
  	#define	LED1_ACTIVE		BIT(5)
  	#define	LED1_LINK_10		BIT(6)
  	#define	LED1_LINK_100		BIT(7)
  	#define	LED1_LINK_1000		BIT(8)
  	#define	LED1_FD			BIT(9)
  	#define	LED1_USB3_MASK		0x03e0
  	#define	LED2_ACTIVE		BIT(10)
  	#define	LED2_LINK_1000		BIT(13)
  	#define	LED2_LINK_100		BIT(12)
  	#define	LED2_LINK_10		BIT(11)
  	#define	LED2_FD			BIT(14)
  	#define	LED_VALID		BIT(15)
  	#define	LED2_USB3_MASK		0x7c00
  
  #define GMII_PHYPAGE				0x1e
  #define GMII_PHY_PAGE_SELECT			0x1f
  	#define GMII_PHY_PGSEL_EXT	0x0007
  	#define GMII_PHY_PGSEL_PAGE0	0x0000
  	#define GMII_PHY_PGSEL_PAGE3	0x0003
  	#define GMII_PHY_PGSEL_PAGE5	0x0005
  
  struct ax88179_data {
  	u8  eee_enabled;
  	u8  eee_active;
  	u16 rxctl;
  	u16 reserved;
  };
  
  struct ax88179_int_data {
  	__le32 intdata1;
  	__le32 intdata2;
  };
  
  static const struct {
  	unsigned char ctrl, timer_l, timer_h, size, ifg;
  } AX88179_BULKIN_SIZE[] =	{
  	{7, 0x4f, 0,	0x12, 0xff},
  	{7, 0x20, 3,	0x16, 0xff},
  	{7, 0xae, 7,	0x18, 0xff},
  	{7, 0xcc, 0x4c, 0x18, 8},
  };
  
  static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  			      u16 size, void *data, int in_pm)
  {
  	int ret;
  	int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
  
  	BUG_ON(!dev);
  
  	if (!in_pm)
  		fn = usbnet_read_cmd;
  	else
  		fn = usbnet_read_cmd_nopm;
  
  	ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
  		 value, index, data, size);
  
  	if (unlikely(ret < 0))
  		netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d
  ",
  			    index, ret);
  
  	return ret;
  }
  
  static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  			       u16 size, void *data, int in_pm)
  {
  	int ret;
  	int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
  
  	BUG_ON(!dev);
  
  	if (!in_pm)
  		fn = usbnet_write_cmd;
  	else
  		fn = usbnet_write_cmd_nopm;
  
  	ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
  		 value, index, data, size);
  
  	if (unlikely(ret < 0))
  		netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d
  ",
  			    index, ret);
  
  	return ret;
  }
  
  static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
  				    u16 index, u16 size, void *data)
  {
  	u16 buf;
  
  	if (2 == size) {
  		buf = *((u16 *)data);
  		cpu_to_le16s(&buf);
  		usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
  				       USB_RECIP_DEVICE, value, index, &buf,
  				       size);
  	} else {
  		usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
  				       USB_RECIP_DEVICE, value, index, data,
  				       size);
  	}
  }
  
  static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
  				 u16 index, u16 size, void *data)
  {
  	int ret;
  
  	if (2 == size) {
  		u16 buf;
  		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
  		le16_to_cpus(&buf);
  		*((u16 *)data) = buf;
  	} else if (4 == size) {
  		u32 buf;
  		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
  		le32_to_cpus(&buf);
  		*((u32 *)data) = buf;
  	} else {
  		ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
  	}
  
  	return ret;
  }
  
  static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
  				  u16 index, u16 size, void *data)
  {
  	int ret;
  
  	if (2 == size) {
  		u16 buf;
  		buf = *((u16 *)data);
  		cpu_to_le16s(&buf);
  		ret = __ax88179_write_cmd(dev, cmd, value, index,
  					  size, &buf, 1);
  	} else {
  		ret = __ax88179_write_cmd(dev, cmd, value, index,
  					  size, data, 1);
  	}
  
  	return ret;
  }
  
  static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  			    u16 size, void *data)
  {
  	int ret;
  
  	if (2 == size) {
  		u16 buf;
  		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
  		le16_to_cpus(&buf);
  		*((u16 *)data) = buf;
  	} else if (4 == size) {
  		u32 buf;
  		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
  		le32_to_cpus(&buf);
  		*((u32 *)data) = buf;
  	} else {
  		ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
  	}
  
  	return ret;
  }
  
  static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  			     u16 size, void *data)
  {
  	int ret;
  
  	if (2 == size) {
  		u16 buf;
  		buf = *((u16 *)data);
  		cpu_to_le16s(&buf);
  		ret = __ax88179_write_cmd(dev, cmd, value, index,
  					  size, &buf, 0);
  	} else {
  		ret = __ax88179_write_cmd(dev, cmd, value, index,
  					  size, data, 0);
  	}
  
  	return ret;
  }
  
  static void ax88179_status(struct usbnet *dev, struct urb *urb)
  {
  	struct ax88179_int_data *event;
  	u32 link;
  
  	if (urb->actual_length < 8)
  		return;
  
  	event = urb->transfer_buffer;
  	le32_to_cpus((void *)&event->intdata1);
  
  	link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
  
  	if (netif_carrier_ok(dev->net) != link) {
  		usbnet_link_change(dev, link, 1);
  		netdev_info(dev->net, "ax88179 - Link status is: %d
  ", link);
  	}
  }
  
  static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
  {
  	struct usbnet *dev = netdev_priv(netdev);
  	u16 res;
  
  	ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
  	return res;
  }
  
  static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
  			       int val)
  {
  	struct usbnet *dev = netdev_priv(netdev);
  	u16 res = (u16) val;
  
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
  }
  
  static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
  					   u16 devad)
  {
  	u16 tmp16;
  	int ret;
  
  	tmp16 = devad;
  	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  				MII_MMD_CTRL, 2, &tmp16);
  
  	tmp16 = prtad;
  	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  				MII_MMD_DATA, 2, &tmp16);
  
  	tmp16 = devad | MII_MMD_CTRL_NOINCR;
  	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  				MII_MMD_CTRL, 2, &tmp16);
  
  	return ret;
  }
  
  static int
  ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
  {
  	int ret;
  	u16 tmp16;
  
  	ax88179_phy_mmd_indirect(dev, prtad, devad);
  
  	ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			       MII_MMD_DATA, 2, &tmp16);
  	if (ret < 0)
  		return ret;
  
  	return tmp16;
  }
  
  static int
  ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
  			       u16 data)
  {
  	int ret;
  
  	ax88179_phy_mmd_indirect(dev, prtad, devad);
  
  	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  				MII_MMD_DATA, 2, &data);
  
  	if (ret < 0)
  		return ret;
  
  	return 0;
  }
  
  static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
  {
  	struct usbnet *dev = usb_get_intfdata(intf);
  	u16 tmp16;
  	u8 tmp8;
  
  	usbnet_suspend(intf, message);
  
  	/* Disable RX path */
  	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			      2, 2, &tmp16);
  	tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			       2, 2, &tmp16);
  
  	/* Force bulk-in zero length */
  	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
  			      2, 2, &tmp16);
  
  	tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
  			       2, 2, &tmp16);
  
  	/* change clock */
  	tmp8 = 0;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
  
  	/* Configure RX control register => stop operation */
  	tmp16 = AX_RX_CTL_STOP;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
  
  	return 0;
  }
  
  /* This function is used to enable the autodetach function. */
  /* This function is determined by offset 0x43 of EEPROM */
  static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
  {
  	u16 tmp16;
  	u8 tmp8;
  	int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
  	int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
  
  	if (!in_pm) {
  		fnr = ax88179_read_cmd;
  		fnw = ax88179_write_cmd;
  	} else {
  		fnr = ax88179_read_cmd_nopm;
  		fnw = ax88179_write_cmd_nopm;
  	}
  
  	if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
  		return 0;
  
  	if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
  		return 0;
  
  	/* Enable Auto Detach bit */
  	tmp8 = 0;
  	fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
  	tmp8 |= AX_CLK_SELECT_ULR;
  	fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
  
  	fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
  	tmp16 |= AX_PHYPWR_RSTCTL_AT;
  	fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
  
  	return 0;
  }
  
  static int ax88179_resume(struct usb_interface *intf)
  {
  	struct usbnet *dev = usb_get_intfdata(intf);
  	u16 tmp16;
  	u8 tmp8;
  
  	usbnet_link_change(dev, 0, 0);
  
  	/* Power up ethernet PHY */
  	tmp16 = 0;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
  			       2, 2, &tmp16);
  	udelay(1000);
  
  	tmp16 = AX_PHYPWR_RSTCTL_IPRL;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
  			       2, 2, &tmp16);
  	msleep(200);
  
  	/* Ethernet PHY Auto Detach*/
  	ax88179_auto_detach(dev, 1);
  
  	/* Enable clock */
  	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC,  AX_CLK_SELECT, 1, 1, &tmp8);
  	tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
  	msleep(100);
  
  	/* Configure RX control register => start operation */
  	tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
  		AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
  	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
  
  	return usbnet_resume(intf);
  }
  
  static void
  ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
  {
  	struct usbnet *dev = netdev_priv(net);
  	u8 opt;
  
  	if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
  			     1, 1, &opt) < 0) {
  		wolinfo->supported = 0;
  		wolinfo->wolopts = 0;
  		return;
  	}
  
  	wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
  	wolinfo->wolopts = 0;
  	if (opt & AX_MONITOR_MODE_RWLC)
  		wolinfo->wolopts |= WAKE_PHY;
  	if (opt & AX_MONITOR_MODE_RWMP)
  		wolinfo->wolopts |= WAKE_MAGIC;
  }
  
  static int
  ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
  {
  	struct usbnet *dev = netdev_priv(net);
  	u8 opt = 0;
  
  	if (wolinfo->wolopts & WAKE_PHY)
  		opt |= AX_MONITOR_MODE_RWLC;
  	if (wolinfo->wolopts & WAKE_MAGIC)
  		opt |= AX_MONITOR_MODE_RWMP;
  
  	if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
  			      1, 1, &opt) < 0)
  		return -EINVAL;
  
  	return 0;
  }
  
  static int ax88179_get_eeprom_len(struct net_device *net)
  {
  	return AX_EEPROM_LEN;
  }
  
  static int
  ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
  		   u8 *data)
  {
  	struct usbnet *dev = netdev_priv(net);
  	u16 *eeprom_buff;
  	int first_word, last_word;
  	int i, ret;
  
  	if (eeprom->len == 0)
  		return -EINVAL;
  
  	eeprom->magic = AX88179_EEPROM_MAGIC;
  
  	first_word = eeprom->offset >> 1;
  	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
  	eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
  			      GFP_KERNEL);
  	if (!eeprom_buff)
  		return -ENOMEM;
  
  	/* ax88179/178A returns 2 bytes from eeprom on read */
  	for (i = first_word; i <= last_word; i++) {
  		ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
  					 &eeprom_buff[i - first_word],
  					 0);
  		if (ret < 0) {
  			kfree(eeprom_buff);
  			return -EIO;
  		}
  	}
  
  	memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
  	kfree(eeprom_buff);
  	return 0;
  }
  
  static int ax88179_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
  {
  	struct usbnet *dev = netdev_priv(net);
  	return mii_ethtool_gset(&dev->mii, cmd);
  }
  
  static int ax88179_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
  {
  	struct usbnet *dev = netdev_priv(net);
  	return mii_ethtool_sset(&dev->mii, cmd);
  }
  
  static int
  ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
  {
  	int val;
  
  	/* Get Supported EEE */
  	val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
  					    MDIO_MMD_PCS);
  	if (val < 0)
  		return val;
  	data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
  
  	/* Get advertisement EEE */
  	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
  					    MDIO_MMD_AN);
  	if (val < 0)
  		return val;
  	data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
  
  	/* Get LP advertisement EEE */
  	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
  					    MDIO_MMD_AN);
  	if (val < 0)
  		return val;
  	data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
  
  	return 0;
  }
  
  static int
  ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
  {
  	u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
  
  	return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
  					      MDIO_MMD_AN, tmp16);
  }
  
  static int ax88179_chk_eee(struct usbnet *dev)
  {
  	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
  	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
  
  	mii_ethtool_gset(&dev->mii, &ecmd);
  
  	if (ecmd.duplex & DUPLEX_FULL) {
  		int eee_lp, eee_cap, eee_adv;
  		u32 lp, cap, adv, supported = 0;
  
  		eee_cap = ax88179_phy_read_mmd_indirect(dev,
  							MDIO_PCS_EEE_ABLE,
  							MDIO_MMD_PCS);
  		if (eee_cap < 0) {
  			priv->eee_active = 0;
  			return false;
  		}
  
  		cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
  		if (!cap) {
  			priv->eee_active = 0;
  			return false;
  		}
  
  		eee_lp = ax88179_phy_read_mmd_indirect(dev,
  						       MDIO_AN_EEE_LPABLE,
  						       MDIO_MMD_AN);
  		if (eee_lp < 0) {
  			priv->eee_active = 0;
  			return false;
  		}
  
  		eee_adv = ax88179_phy_read_mmd_indirect(dev,
  							MDIO_AN_EEE_ADV,
  							MDIO_MMD_AN);
  
  		if (eee_adv < 0) {
  			priv->eee_active = 0;
  			return false;
  		}
  
  		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
  		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
  		supported = (ecmd.speed == SPEED_1000) ?
  			     SUPPORTED_1000baseT_Full :
  			     SUPPORTED_100baseT_Full;
  
  		if (!(lp & adv & supported)) {
  			priv->eee_active = 0;
  			return false;
  		}
  
  		priv->eee_active = 1;
  		return true;
  	}
  
  	priv->eee_active = 0;
  	return false;
  }
  
  static void ax88179_disable_eee(struct usbnet *dev)
  {
  	u16 tmp16;
  
  	tmp16 = GMII_PHY_PGSEL_PAGE3;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
  
  	tmp16 = 0x3246;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  MII_PHYADDR, 2, &tmp16);
  
  	tmp16 = GMII_PHY_PGSEL_PAGE0;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
  }
  
  static void ax88179_enable_eee(struct usbnet *dev)
  {
  	u16 tmp16;
  
  	tmp16 = GMII_PHY_PGSEL_PAGE3;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
  
  	tmp16 = 0x3247;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  MII_PHYADDR, 2, &tmp16);
  
  	tmp16 = GMII_PHY_PGSEL_PAGE5;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
  
  	tmp16 = 0x0680;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  MII_BMSR, 2, &tmp16);
  
  	tmp16 = GMII_PHY_PGSEL_PAGE0;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
  }
  
  static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
  {
  	struct usbnet *dev = netdev_priv(net);
  	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
  
  	edata->eee_enabled = priv->eee_enabled;
  	edata->eee_active = priv->eee_active;
  
  	return ax88179_ethtool_get_eee(dev, edata);
  }
  
  static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
  {
  	struct usbnet *dev = netdev_priv(net);
  	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
  	int ret = -EOPNOTSUPP;
  
  	priv->eee_enabled = edata->eee_enabled;
  	if (!priv->eee_enabled) {
  		ax88179_disable_eee(dev);
  	} else {
  		priv->eee_enabled = ax88179_chk_eee(dev);
  		if (!priv->eee_enabled)
  			return -EOPNOTSUPP;
  
  		ax88179_enable_eee(dev);
  	}
  
  	ret = ax88179_ethtool_set_eee(dev, edata);
  	if (ret)
  		return ret;
  
  	mii_nway_restart(&dev->mii);
  
  	usbnet_link_change(dev, 0, 0);
  
  	return ret;
  }
  
  static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
  {
  	struct usbnet *dev = netdev_priv(net);
  	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
  }
  
  static const struct ethtool_ops ax88179_ethtool_ops = {
  	.get_link		= ethtool_op_get_link,
  	.get_msglevel		= usbnet_get_msglevel,
  	.set_msglevel		= usbnet_set_msglevel,
  	.get_wol		= ax88179_get_wol,
  	.set_wol		= ax88179_set_wol,
  	.get_eeprom_len		= ax88179_get_eeprom_len,
  	.get_eeprom		= ax88179_get_eeprom,
  	.get_settings		= ax88179_get_settings,
  	.set_settings		= ax88179_set_settings,
  	.get_eee		= ax88179_get_eee,
  	.set_eee		= ax88179_set_eee,
  	.nway_reset		= usbnet_nway_reset,
  };
  
  static void ax88179_set_multicast(struct net_device *net)
  {
  	struct usbnet *dev = netdev_priv(net);
  	struct ax88179_data *data = (struct ax88179_data *)dev->data;
  	u8 *m_filter = ((u8 *)dev->data) + 12;
  
  	data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
  
  	if (net->flags & IFF_PROMISC) {
  		data->rxctl |= AX_RX_CTL_PRO;
  	} else if (net->flags & IFF_ALLMULTI ||
  		   netdev_mc_count(net) > AX_MAX_MCAST) {
  		data->rxctl |= AX_RX_CTL_AMALL;
  	} else if (netdev_mc_empty(net)) {
  		/* just broadcast and directed */
  	} else {
  		/* We use the 20 byte dev->data for our 8 byte filter buffer
  		 * to avoid allocating memory that is tricky to free later
  		 */
  		u32 crc_bits;
  		struct netdev_hw_addr *ha;
  
  		memset(m_filter, 0, AX_MCAST_FLTSIZE);
  
  		netdev_for_each_mc_addr(ha, net) {
  			crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
  			*(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
  		}
  
  		ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
  					AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
  					m_filter);
  
  		data->rxctl |= AX_RX_CTL_AM;
  	}
  
  	ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
  				2, 2, &data->rxctl);
  }
  
  static int
  ax88179_set_features(struct net_device *net, netdev_features_t features)
  {
  	u8 tmp;
  	struct usbnet *dev = netdev_priv(net);
  	netdev_features_t changed = net->features ^ features;
  
  	if (changed & NETIF_F_IP_CSUM) {
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
  		tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
  	}
  
  	if (changed & NETIF_F_IPV6_CSUM) {
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
  		tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
  	}
  
  	if (changed & NETIF_F_RXCSUM) {
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
  		tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
  		       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
  	}
  
  	return 0;
  }
  
  static int ax88179_change_mtu(struct net_device *net, int new_mtu)
  {
  	struct usbnet *dev = netdev_priv(net);
  	u16 tmp16;
  
  	if (new_mtu <= 0 || new_mtu > 4088)
  		return -EINVAL;
  
  	net->mtu = new_mtu;
  	dev->hard_mtu = net->mtu + net->hard_header_len;
  
  	if (net->mtu > 1500) {
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  				 2, 2, &tmp16);
  		tmp16 |= AX_MEDIUM_JUMBO_EN;
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  				  2, 2, &tmp16);
  	} else {
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  				 2, 2, &tmp16);
  		tmp16 &= ~AX_MEDIUM_JUMBO_EN;
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  				  2, 2, &tmp16);
  	}
  
  	/* max qlen depend on hard_mtu and rx_urb_size */
  	usbnet_update_max_qlen(dev);
  
  	return 0;
  }
  
  static int ax88179_set_mac_addr(struct net_device *net, void *p)
  {
  	struct usbnet *dev = netdev_priv(net);
  	struct sockaddr *addr = p;
  	int ret;
  
  	if (netif_running(net))
  		return -EBUSY;
  	if (!is_valid_ether_addr(addr->sa_data))
  		return -EADDRNOTAVAIL;
  
  	memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
  
  	/* Set the MAC address */
  	ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
  				 ETH_ALEN, net->dev_addr);
  	if (ret < 0)
  		return ret;
  
  	return 0;
  }
  
  static const struct net_device_ops ax88179_netdev_ops = {
  	.ndo_open		= usbnet_open,
  	.ndo_stop		= usbnet_stop,
  	.ndo_start_xmit		= usbnet_start_xmit,
  	.ndo_tx_timeout		= usbnet_tx_timeout,
  	.ndo_change_mtu		= ax88179_change_mtu,
  	.ndo_set_mac_address	= ax88179_set_mac_addr,
  	.ndo_validate_addr	= eth_validate_addr,
  	.ndo_do_ioctl		= ax88179_ioctl,
  	.ndo_set_rx_mode	= ax88179_set_multicast,
  	.ndo_set_features	= ax88179_set_features,
  };
  
  static int ax88179_check_eeprom(struct usbnet *dev)
  {
  	u8 i, buf, eeprom[20];
  	u16 csum, delay = HZ / 10;
  	unsigned long jtimeout;
  
  	/* Read EEPROM content */
  	for (i = 0; i < 6; i++) {
  		buf = i;
  		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
  				      1, 1, &buf) < 0)
  			return -EINVAL;
  
  		buf = EEP_RD;
  		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
  				      1, 1, &buf) < 0)
  			return -EINVAL;
  
  		jtimeout = jiffies + delay;
  		do {
  			ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
  					 1, 1, &buf);
  
  			if (time_after(jiffies, jtimeout))
  				return -EINVAL;
  
  		} while (buf & EEP_BUSY);
  
  		__ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
  				   2, 2, &eeprom[i * 2], 0);
  
  		if ((i == 0) && (eeprom[0] == 0xFF))
  			return -EINVAL;
  	}
  
  	csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
  	csum = (csum >> 8) + (csum & 0xff);
  	if ((csum + eeprom[10]) != 0xff)
  		return -EINVAL;
  
  	return 0;
  }
  
  static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
  {
  	u8	i;
  	u8	efuse[64];
  	u16	csum = 0;
  
  	if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
  		return -EINVAL;
  
  	if (*efuse == 0xFF)
  		return -EINVAL;
  
  	for (i = 0; i < 64; i++)
  		csum = csum + efuse[i];
  
  	while (csum > 255)
  		csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
  
  	if (csum != 0xFF)
  		return -EINVAL;
  
  	*ledmode = (efuse[51] << 8) | efuse[52];
  
  	return 0;
  }
  
  static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
  {
  	u16 led;
  
  	/* Loaded the old eFuse LED Mode */
  	if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
  		return -EINVAL;
  
  	led >>= 8;
  	switch (led) {
  	case 0xFF:
  		led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
  		      LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
  		      LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
  		break;
  	case 0xFE:
  		led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
  		break;
  	case 0xFD:
  		led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
  		      LED2_LINK_10 | LED_VALID;
  		break;
  	case 0xFC:
  		led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
  		      LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
  		break;
  	default:
  		led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
  		      LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
  		      LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
  		break;
  	}
  
  	*ledvalue = led;
  
  	return 0;
  }
  
  static int ax88179_led_setting(struct usbnet *dev)
  {
  	u8 ledfd, value = 0;
  	u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
  	unsigned long jtimeout;
  
  	/* Check AX88179 version. UA1 or UA2*/
  	ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
  
  	if (!(value & AX_SECLD)) {	/* UA1 */
  		value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
  			AX_GPIO_CTRL_GPIO1EN;
  		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
  				      1, 1, &value) < 0)
  			return -EINVAL;
  	}
  
  	/* Check EEPROM */
  	if (!ax88179_check_eeprom(dev)) {
  		value = 0x42;
  		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
  				      1, 1, &value) < 0)
  			return -EINVAL;
  
  		value = EEP_RD;
  		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
  				      1, 1, &value) < 0)
  			return -EINVAL;
  
  		jtimeout = jiffies + delay;
  		do {
  			ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
  					 1, 1, &value);
  
  			if (time_after(jiffies, jtimeout))
  				return -EINVAL;
  
  		} while (value & EEP_BUSY);
  
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
  				 1, 1, &value);
  		ledvalue = (value << 8);
  
  		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
  				 1, 1, &value);
  		ledvalue |= value;
  
  		/* load internal ROM for defaule setting */
  		if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
  			ax88179_convert_old_led(dev, &ledvalue);
  
  	} else if (!ax88179_check_efuse(dev, &ledvalue)) {
  		if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
  			ax88179_convert_old_led(dev, &ledvalue);
  	} else {
  		ax88179_convert_old_led(dev, &ledvalue);
  	}
  
  	tmp = GMII_PHY_PGSEL_EXT;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp);
  
  	tmp = 0x2c;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHYPAGE, 2, &tmp);
  
  	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			 GMII_LED_ACT, 2, &ledact);
  
  	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			 GMII_LED_LINK, 2, &ledlink);
  
  	ledact &= GMII_LED_ACTIVE_MASK;
  	ledlink &= GMII_LED_LINK_MASK;
  
  	if (ledvalue & LED0_ACTIVE)
  		ledact |= GMII_LED0_ACTIVE;
  
  	if (ledvalue & LED1_ACTIVE)
  		ledact |= GMII_LED1_ACTIVE;
  
  	if (ledvalue & LED2_ACTIVE)
  		ledact |= GMII_LED2_ACTIVE;
  
  	if (ledvalue & LED0_LINK_10)
  		ledlink |= GMII_LED0_LINK_10;
  
  	if (ledvalue & LED1_LINK_10)
  		ledlink |= GMII_LED1_LINK_10;
  
  	if (ledvalue & LED2_LINK_10)
  		ledlink |= GMII_LED2_LINK_10;
  
  	if (ledvalue & LED0_LINK_100)
  		ledlink |= GMII_LED0_LINK_100;
  
  	if (ledvalue & LED1_LINK_100)
  		ledlink |= GMII_LED1_LINK_100;
  
  	if (ledvalue & LED2_LINK_100)
  		ledlink |= GMII_LED2_LINK_100;
  
  	if (ledvalue & LED0_LINK_1000)
  		ledlink |= GMII_LED0_LINK_1000;
  
  	if (ledvalue & LED1_LINK_1000)
  		ledlink |= GMII_LED1_LINK_1000;
  
  	if (ledvalue & LED2_LINK_1000)
  		ledlink |= GMII_LED2_LINK_1000;
  
  	tmp = ledact;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_LED_ACT, 2, &tmp);
  
  	tmp = ledlink;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_LED_LINK, 2, &tmp);
  
  	tmp = GMII_PHY_PGSEL_PAGE0;
  	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			  GMII_PHY_PAGE_SELECT, 2, &tmp);
  
  	/* LED full duplex setting */
  	ledfd = 0;
  	if (ledvalue & LED0_FD)
  		ledfd |= 0x01;
  	else if ((ledvalue & LED0_USB3_MASK) == 0)
  		ledfd |= 0x02;
  
  	if (ledvalue & LED1_FD)
  		ledfd |= 0x04;
  	else if ((ledvalue & LED1_USB3_MASK) == 0)
  		ledfd |= 0x08;
  
  	if (ledvalue & LED2_FD)
  		ledfd |= 0x10;
  	else if ((ledvalue & LED2_USB3_MASK) == 0)
  		ledfd |= 0x20;
  
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
  
  	return 0;
  }
  
  static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
  {
  	u8 buf[5];
  	u16 *tmp16;
  	u8 *tmp;
  	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
  	struct ethtool_eee eee_data;
  
  	usbnet_get_endpoints(dev, intf);
  
  	tmp16 = (u16 *)buf;
  	tmp = (u8 *)buf;
  
  	memset(ax179_data, 0, sizeof(*ax179_data));
  
  	/* Power up ethernet PHY */
  	*tmp16 = 0;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
  	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
  	msleep(200);
  
  	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
  	msleep(100);
  
  	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
  			 ETH_ALEN, dev->net->dev_addr);
  	memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
  
  	/* RX bulk configuration */
  	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
  
  	dev->rx_urb_size = 1024 * 20;
  
  	*tmp = 0x34;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
  
  	*tmp = 0x52;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
  			  1, 1, tmp);
  
  	dev->net->netdev_ops = &ax88179_netdev_ops;
  	dev->net->ethtool_ops = &ax88179_ethtool_ops;
  	dev->net->needed_headroom = 8;
  
  	/* Initialize MII structure */
  	dev->mii.dev = dev->net;
  	dev->mii.mdio_read = ax88179_mdio_read;
  	dev->mii.mdio_write = ax88179_mdio_write;
  	dev->mii.phy_id_mask = 0xff;
  	dev->mii.reg_num_mask = 0xff;
  	dev->mii.phy_id = 0x03;
  	dev->mii.supports_gmii = 1;
  
  	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  			      NETIF_F_RXCSUM;
  
  	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  				 NETIF_F_RXCSUM;
  
  	/* Enable checksum offload */
  	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
  	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
  
  	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
  	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
  
  	/* Configure RX control register => start operation */
  	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
  		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
  
  	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
  	       AX_MONITOR_MODE_RWMP;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
  
  	/* Configure default medium type => giga */
  	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
  		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
  		 AX_MEDIUM_GIGAMODE;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			  2, 2, tmp16);
  
  	ax88179_led_setting(dev);
  
  	ax179_data->eee_enabled = 0;
  	ax179_data->eee_active = 0;
  
  	ax88179_disable_eee(dev);
  
  	ax88179_ethtool_get_eee(dev, &eee_data);
  	eee_data.advertised = 0;
  	ax88179_ethtool_set_eee(dev, &eee_data);
  
  	/* Restart autoneg */
  	mii_nway_restart(&dev->mii);
  
  	usbnet_link_change(dev, 0, 0);
  
  	return 0;
  }
  
  static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
  {
  	u16 tmp16;
  
  	/* Configure RX control register => stop operation */
  	tmp16 = AX_RX_CTL_STOP;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
  
  	tmp16 = 0;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
  
  	/* Power down ethernet PHY */
  	tmp16 = 0;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
  }
  
  static void
  ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
  {
  	skb->ip_summed = CHECKSUM_NONE;
  
  	/* checksum error bit is set */
  	if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
  	    (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
  		return;
  
  	/* It must be a TCP or UDP packet with a valid checksum */
  	if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
  	    ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
  		skb->ip_summed = CHECKSUM_UNNECESSARY;
  }
  
  static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
  {
  	struct sk_buff *ax_skb;
  	int pkt_cnt;
  	u32 rx_hdr;
  	u16 hdr_off;
  	u32 *pkt_hdr;
  
  	/* This check is no longer done by usbnet */
  	if (skb->len < dev->net->hard_header_len)
  		return 0;
  
  	skb_trim(skb, skb->len - 4);
  	memcpy(&rx_hdr, skb_tail_pointer(skb), 4);
  	le32_to_cpus(&rx_hdr);
  
  	pkt_cnt = (u16)rx_hdr;
  	hdr_off = (u16)(rx_hdr >> 16);
  	pkt_hdr = (u32 *)(skb->data + hdr_off);
  
  	while (pkt_cnt--) {
  		u16 pkt_len;
  
  		le32_to_cpus(pkt_hdr);
  		pkt_len = (*pkt_hdr >> 16) & 0x1fff;
  
  		/* Check CRC or runt packet */
  		if ((*pkt_hdr & AX_RXHDR_CRC_ERR) ||
  		    (*pkt_hdr & AX_RXHDR_DROP_ERR)) {
  			skb_pull(skb, (pkt_len + 7) & 0xFFF8);
  			pkt_hdr++;
  			continue;
  		}
  
  		if (pkt_cnt == 0) {
  			/* Skip IP alignment psudo header */
  			skb_pull(skb, 2);
  			skb->len = pkt_len;
  			skb_set_tail_pointer(skb, pkt_len);
  			skb->truesize = pkt_len + sizeof(struct sk_buff);
  			ax88179_rx_checksum(skb, pkt_hdr);
  			return 1;
  		}
  
  		ax_skb = skb_clone(skb, GFP_ATOMIC);
  		if (ax_skb) {
  			ax_skb->len = pkt_len;
  			ax_skb->data = skb->data + 2;
  			skb_set_tail_pointer(ax_skb, pkt_len);
  			ax_skb->truesize = pkt_len + sizeof(struct sk_buff);
  			ax88179_rx_checksum(ax_skb, pkt_hdr);
  			usbnet_skb_return(dev, ax_skb);
  		} else {
  			return 0;
  		}
  
  		skb_pull(skb, (pkt_len + 7) & 0xFFF8);
  		pkt_hdr++;
  	}
  	return 1;
  }
  
  static struct sk_buff *
  ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
  {
  	u32 tx_hdr1, tx_hdr2;
  	int frame_size = dev->maxpacket;
  	int mss = skb_shinfo(skb)->gso_size;
  	int headroom;
  
  	tx_hdr1 = skb->len;
  	tx_hdr2 = mss;
  	if (((skb->len + 8) % frame_size) == 0)
  		tx_hdr2 |= 0x80008000;	/* Enable padding */
  
  	headroom = skb_headroom(skb) - 8;
  
  	if ((skb_header_cloned(skb) || headroom < 0) &&
  	    pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
  		dev_kfree_skb_any(skb);
  		return NULL;
  	}
  
  	skb_push(skb, 4);
  	cpu_to_le32s(&tx_hdr2);
  	skb_copy_to_linear_data(skb, &tx_hdr2, 4);
  
  	skb_push(skb, 4);
  	cpu_to_le32s(&tx_hdr1);
  	skb_copy_to_linear_data(skb, &tx_hdr1, 4);
  
  	return skb;
  }
  
  static int ax88179_link_reset(struct usbnet *dev)
  {
  	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
  	u8 tmp[5], link_sts;
  	u16 mode, tmp16, delay = HZ / 10;
  	u32 tmp32 = 0x40000000;
  	unsigned long jtimeout;
  
  	jtimeout = jiffies + delay;
  	while (tmp32 & 0x40000000) {
  		mode = 0;
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
  		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
  				  &ax179_data->rxctl);
  
  		/*link up, check the usb device control TX FIFO full or empty*/
  		ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
  
  		if (time_after(jiffies, jtimeout))
  			return 0;
  	}
  
  	mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
  	       AX_MEDIUM_RXFLOW_CTRLEN;
  
  	ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
  			 1, 1, &link_sts);
  
  	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
  			 GMII_PHY_PHYSR, 2, &tmp16);
  
  	if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
  		return 0;
  	} else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
  		mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
  		if (dev->net->mtu > 1500)
  			mode |= AX_MEDIUM_JUMBO_EN;
  
  		if (link_sts & AX_USB_SS)
  			memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
  		else if (link_sts & AX_USB_HS)
  			memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
  		else
  			memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
  	} else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
  		mode |= AX_MEDIUM_PS;
  
  		if (link_sts & (AX_USB_SS | AX_USB_HS))
  			memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
  		else
  			memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
  	} else {
  		memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
  	}
  
  	/* RX bulk configuration */
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
  
  	dev->rx_urb_size = (1024 * (tmp[3] + 2));
  
  	if (tmp16 & GMII_PHY_PHYSR_FULL)
  		mode |= AX_MEDIUM_FULL_DUPLEX;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			  2, 2, &mode);
  
  	ax179_data->eee_enabled = ax88179_chk_eee(dev);
  
  	netif_carrier_on(dev->net);
  
  	return 0;
  }
  
  static int ax88179_reset(struct usbnet *dev)
  {
  	u8 buf[5];
  	u16 *tmp16;
  	u8 *tmp;
  	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
  	struct ethtool_eee eee_data;
  
  	tmp16 = (u16 *)buf;
  	tmp = (u8 *)buf;
  
  	/* Power up ethernet PHY */
  	*tmp16 = 0;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
  
  	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
  	msleep(200);
  
  	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
  	msleep(100);
  
  	/* Ethernet PHY Auto Detach*/
  	ax88179_auto_detach(dev, 0);
  
  	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
  			 dev->net->dev_addr);
  	memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
  
  	/* RX bulk configuration */
  	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
  
  	dev->rx_urb_size = 1024 * 20;
  
  	*tmp = 0x34;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
  
  	*tmp = 0x52;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
  			  1, 1, tmp);
  
  	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  			      NETIF_F_RXCSUM;
  
  	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
  				 NETIF_F_RXCSUM;
  
  	/* Enable checksum offload */
  	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
  	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
  
  	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
  	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
  
  	/* Configure RX control register => start operation */
  	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
  		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
  
  	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
  	       AX_MONITOR_MODE_RWMP;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
  
  	/* Configure default medium type => giga */
  	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
  		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
  		 AX_MEDIUM_GIGAMODE;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			  2, 2, tmp16);
  
  	ax88179_led_setting(dev);
  
  	ax179_data->eee_enabled = 0;
  	ax179_data->eee_active = 0;
  
  	ax88179_disable_eee(dev);
  
  	ax88179_ethtool_get_eee(dev, &eee_data);
  	eee_data.advertised = 0;
  	ax88179_ethtool_set_eee(dev, &eee_data);
  
  	/* Restart autoneg */
  	mii_nway_restart(&dev->mii);
  
  	usbnet_link_change(dev, 0, 0);
  
  	return 0;
  }
  
  static int ax88179_stop(struct usbnet *dev)
  {
  	u16 tmp16;
  
  	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			 2, 2, &tmp16);
  	tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
  	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
  			  2, 2, &tmp16);
  
  	return 0;
  }
  
  static const struct driver_info ax88179_info = {
  	.description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
  	.bind = ax88179_bind,
  	.unbind = ax88179_unbind,
  	.status = ax88179_status,
  	.link_reset = ax88179_link_reset,
  	.reset = ax88179_reset,
  	.stop = ax88179_stop,
  	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
  	.rx_fixup = ax88179_rx_fixup,
  	.tx_fixup = ax88179_tx_fixup,
  };
  
  static const struct driver_info ax88178a_info = {
  	.description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
  	.bind = ax88179_bind,
  	.unbind = ax88179_unbind,
  	.status = ax88179_status,
  	.link_reset = ax88179_link_reset,
  	.reset = ax88179_reset,
  	.stop = ax88179_stop,
  	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
  	.rx_fixup = ax88179_rx_fixup,
  	.tx_fixup = ax88179_tx_fixup,
  };
  
  static const struct driver_info dlink_dub1312_info = {
  	.description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
  	.bind = ax88179_bind,
  	.unbind = ax88179_unbind,
  	.status = ax88179_status,
  	.link_reset = ax88179_link_reset,
  	.reset = ax88179_reset,
  	.stop = ax88179_stop,
  	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
  	.rx_fixup = ax88179_rx_fixup,
  	.tx_fixup = ax88179_tx_fixup,
  };
  
  static const struct driver_info sitecom_info = {
  	.description = "Sitecom USB 3.0 to Gigabit Adapter",
  	.bind = ax88179_bind,
  	.unbind = ax88179_unbind,
  	.status = ax88179_status,
  	.link_reset = ax88179_link_reset,
  	.reset = ax88179_reset,
  	.stop = ax88179_stop,
  	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
  	.rx_fixup = ax88179_rx_fixup,
  	.tx_fixup = ax88179_tx_fixup,
  };
  
  static const struct driver_info samsung_info = {
  	.description = "Samsung USB Ethernet Adapter",
  	.bind = ax88179_bind,
  	.unbind = ax88179_unbind,
  	.status = ax88179_status,
  	.link_reset = ax88179_link_reset,
  	.reset = ax88179_reset,
  	.stop = ax88179_stop,
  	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
  	.rx_fixup = ax88179_rx_fixup,
  	.tx_fixup = ax88179_tx_fixup,
  };
  
  static const struct driver_info lenovo_info = {
  	.description = "Lenovo OneLinkDock Gigabit LAN",
  	.bind = ax88179_bind,
  	.unbind = ax88179_unbind,
  	.status = ax88179_status,
  	.link_reset = ax88179_link_reset,
  	.reset = ax88179_reset,
  	.stop = ax88179_stop,
  	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
  	.rx_fixup = ax88179_rx_fixup,
  	.tx_fixup = ax88179_tx_fixup,
  };
  
  static const struct usb_device_id products[] = {
  {
  	/* ASIX AX88179 10/100/1000 */
  	USB_DEVICE(0x0b95, 0x1790),
  	.driver_info = (unsigned long)&ax88179_info,
  }, {
  	/* ASIX AX88178A 10/100/1000 */
  	USB_DEVICE(0x0b95, 0x178a),
  	.driver_info = (unsigned long)&ax88178a_info,
  }, {
  	/* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
  	USB_DEVICE(0x2001, 0x4a00),
  	.driver_info = (unsigned long)&dlink_dub1312_info,
  }, {
  	/* Sitecom USB 3.0 to Gigabit Adapter */
  	USB_DEVICE(0x0df6, 0x0072),
  	.driver_info = (unsigned long)&sitecom_info,
  }, {
  	/* Samsung USB Ethernet Adapter */
  	USB_DEVICE(0x04e8, 0xa100),
  	.driver_info = (unsigned long)&samsung_info,
  }, {
  	/* Lenovo OneLinkDock Gigabit LAN */
  	USB_DEVICE(0x17ef, 0x304b),
  	.driver_info = (unsigned long)&lenovo_info,
  },
  	{ },
  };
  MODULE_DEVICE_TABLE(usb, products);
  
  static struct usb_driver ax88179_178a_driver = {
  	.name =		"ax88179_178a",
  	.id_table =	products,
  	.probe =	usbnet_probe,
  	.suspend =	ax88179_suspend,
  	.resume =	ax88179_resume,
  	.reset_resume =	ax88179_resume,
  	.disconnect =	usbnet_disconnect,
  	.supports_autosuspend = 1,
  	.disable_hub_initiated_lpm = 1,
  };
  
  module_usb_driver(ax88179_178a_driver);
  
  MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
  MODULE_LICENSE("GPL");