drivers/net/usb/asix.c - barebox/mindspeed - Git at Google

 #include <common.h>
 #include <init.h>
 #include <net.h>
 #include <miidev.h>
 #include <usb/usb.h>
 #include <usb/usbnet.h>
 #include <errno.h>
 #include <malloc.h>
 #include <asm/byteorder.h>

 /* ASIX AX8817X based USB 2.0 Ethernet Devices */

 #define AX_CMD_SET_SW_MII		0x06
 #define AX_CMD_READ_MII_REG		0x07
 #define AX_CMD_WRITE_MII_REG		0x08
 #define AX_CMD_SET_HW_MII		0x0a
 #define AX_CMD_READ_EEPROM		0x0b
 #define AX_CMD_WRITE_EEPROM		0x0c
 #define AX_CMD_WRITE_ENABLE		0x0d
 #define AX_CMD_WRITE_DISABLE		0x0e
 #define AX_CMD_READ_RX_CTL		0x0f
 #define AX_CMD_WRITE_RX_CTL		0x10
 #define AX_CMD_READ_IPG012		0x11
 #define AX_CMD_WRITE_IPG0		0x12
 #define AX_CMD_WRITE_IPG1		0x13
 #define AX_CMD_READ_NODE_ID		0x13
 #define AX_CMD_WRITE_IPG2		0x14
 #define AX_CMD_WRITE_MULTI_FILTER	0x16
 #define AX88172_CMD_READ_NODE_ID	0x17
 #define AX_CMD_READ_PHY_ID		0x19
 #define AX_CMD_READ_MEDIUM_STATUS	0x1a
 #define AX_CMD_WRITE_MEDIUM_MODE	0x1b
 #define AX_CMD_READ_MONITOR_MODE	0x1c
 #define AX_CMD_WRITE_MONITOR_MODE	0x1d
 #define AX_CMD_READ_GPIOS		0x1e
 #define AX_CMD_WRITE_GPIOS		0x1f
 #define AX_CMD_SW_RESET			0x20
 #define AX_CMD_SW_PHY_STATUS		0x21
 #define AX_CMD_SW_PHY_SELECT		0x22

 #define AX_MONITOR_MODE			0x01
 #define AX_MONITOR_LINK			0x02
 #define AX_MONITOR_MAGIC		0x04
 #define AX_MONITOR_HSFS			0x10

 /* AX88172 Medium Status Register values */
 #define AX88172_MEDIUM_FD		0x02
 #define AX88172_MEDIUM_TX		0x04
 #define AX88172_MEDIUM_FC		0x10
 #define AX88172_MEDIUM_DEFAULT \
 		( AX88172_MEDIUM_FD | AX88172_MEDIUM_TX | AX88172_MEDIUM_FC )

 #define AX_MCAST_FILTER_SIZE		8
 #define AX_MAX_MCAST			64

 #define AX_SWRESET_CLEAR		0x00
 #define AX_SWRESET_RR			0x01
 #define AX_SWRESET_RT			0x02
 #define AX_SWRESET_PRTE			0x04
 #define AX_SWRESET_PRL			0x08
 #define AX_SWRESET_BZ			0x10
 #define AX_SWRESET_IPRL			0x20
 #define AX_SWRESET_IPPD			0x40

 #define AX88772_IPG0_DEFAULT		0x15
 #define AX88772_IPG1_DEFAULT		0x0c
 #define AX88772_IPG2_DEFAULT		0x12

 /* AX88772 & AX88178 Medium Mode Register */
 #define AX_MEDIUM_PF		0x0080
 #define AX_MEDIUM_JFE		0x0040
 #define AX_MEDIUM_TFC		0x0020
 #define AX_MEDIUM_RFC		0x0010
 #define AX_MEDIUM_ENCK		0x0008
 #define AX_MEDIUM_AC		0x0004
 #define AX_MEDIUM_FD		0x0002
 #define AX_MEDIUM_GM		0x0001
 #define AX_MEDIUM_SM		0x1000
 #define AX_MEDIUM_SBP		0x0800
 #define AX_MEDIUM_PS		0x0200
 #define AX_MEDIUM_RE		0x0100

 #define AX88178_MEDIUM_DEFAULT	\
 	(AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \
 	 AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \
 	 AX_MEDIUM_RE )

 #define AX88772_MEDIUM_DEFAULT	\
 	(AX_MEDIUM_FD | AX_MEDIUM_RFC | \
 	 AX_MEDIUM_TFC | AX_MEDIUM_PS | \
 	 AX_MEDIUM_AC | AX_MEDIUM_RE )

 /* AX88772 & AX88178 RX_CTL values */
 #define AX_RX_CTL_SO			0x0080
 #define AX_RX_CTL_AP			0x0020
 #define AX_RX_CTL_AM			0x0010
 #define AX_RX_CTL_AB			0x0008
 #define AX_RX_CTL_SEP			0x0004
 #define AX_RX_CTL_AMALL			0x0002
 #define AX_RX_CTL_PRO			0x0001
 #define AX_RX_CTL_MFB_2048		0x0000
 #define AX_RX_CTL_MFB_4096		0x0100
 #define AX_RX_CTL_MFB_8192		0x0200
 #define AX_RX_CTL_MFB_16384		0x0300

 #define AX_DEFAULT_RX_CTL	\
 	(AX_RX_CTL_SO | AX_RX_CTL_AB )

 /* GPIO 0 .. 2 toggles */
 #define AX_GPIO_GPO0EN		0x01	/* GPIO0 Output enable */
 #define AX_GPIO_GPO_0		0x02	/* GPIO0 Output value */
 #define AX_GPIO_GPO1EN		0x04	/* GPIO1 Output enable */
 #define AX_GPIO_GPO_1		0x08	/* GPIO1 Output value */
 #define AX_GPIO_GPO2EN		0x10	/* GPIO2 Output enable */
 #define AX_GPIO_GPO_2		0x20	/* GPIO2 Output value */
 #define AX_GPIO_RESERVED	0x40	/* Reserved */
 #define AX_GPIO_RSE		0x80	/* Reload serial EEPROM */

 #define AX_EEPROM_MAGIC		0xdeadbeef
 #define AX88172_EEPROM_LEN	0x40
 #define AX88772_EEPROM_LEN	0xff

 #define PHY_MODE_MARVELL	0x0000
 #define MII_MARVELL_LED_CTRL	0x0018
 #define MII_MARVELL_STATUS	0x001b
 #define MII_MARVELL_CTRL	0x0014

 #define MARVELL_LED_MANUAL	0x0019

 #define MARVELL_STATUS_HWCFG	0x0004

 #define MARVELL_CTRL_TXDELAY	0x0002
 #define MARVELL_CTRL_RXDELAY	0x0080

 /* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
 struct asix_data {
 	u8 multi_filter[AX_MCAST_FILTER_SIZE];
 	u8 phymode;
 	u8 ledmode;
 	u8 eeprom_len;
 };

 struct ax88172_int_data {
 	__le16 res1;
 	u8 link;
 	__le16 res2;
 	u8 status;
 	__le16 res3;
 } __attribute__ ((packed));

 static int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
 			    u16 size, void *data)
 {
 	void *buf;
 	int err = -ENOMEM;

 	dev_dbg(&dev->edev.dev, "asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d",
 		cmd, value, index, size);

 	buf = malloc(size);
 	if (!buf)
 		goto out;

 	err = usb_control_msg(
 		dev->udev,
 		usb_rcvctrlpipe(dev->udev, 0),
 		cmd,
 		USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 		value,
 		index,
 		buf,
 		size,
 		USB_CTRL_GET_TIMEOUT);
 	if (err == size)
 		memcpy(data, buf, size);
 	else if (err >= 0)
 		err = -EINVAL;
 	free(buf);

 out:
 	return err;
 }

 static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
 			     u16 size, void *data)
 {
 	void *buf = NULL;
 	int err = -ENOMEM;

 	dev_dbg(&dev->edev.dev, "asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d",
 		cmd, value, index, size);

 	if (data) {
 		buf = malloc(size);
 		if (!buf)
 			goto out;
 		memcpy(buf, data, size);
 	}

 	err = usb_control_msg(
 		dev->udev,
 		usb_sndctrlpipe(dev->udev, 0),
 		cmd,
 		USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 		value,
 		index,
 		buf,
 		size,
 		USB_CTRL_SET_TIMEOUT);
 	free(buf);

 out:
 	return err;
 }

 static inline int asix_set_sw_mii(struct usbnet *dev)
 {
 	int ret;
 	ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL);
 	if (ret < 0)
 		dev_err(&dev->edev.dev, "Failed to enable software MII access");
 	return ret;
 }

 static inline int asix_set_hw_mii(struct usbnet *dev)
 {
 	int ret;
 	ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL);
 	if (ret < 0)
 		dev_err(&dev->edev.dev, "Failed to enable hardware MII access");
 	return ret;
 }

 static int asix_mdio_read(struct mii_device *mdev, int phy_id, int loc)
 {
 	struct eth_device *eth = mdev->edev;
 	struct usbnet *dev = eth->priv;
 	__le16 res;

 	asix_set_sw_mii(dev);
 	asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
 				(__u16)loc, 2, &res);
 	asix_set_hw_mii(dev);

 	dev_dbg(&dev->edev.dev, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x",
 			phy_id, loc, le16_to_cpu(res));

 	return le16_to_cpu(res);
 }

 static int asix_mdio_write(struct mii_device *mdev, int phy_id, int loc, int val)
 {
 	struct eth_device *eth = mdev->edev;
 	struct usbnet *dev = eth->priv;
 	__le16 res = cpu_to_le16(val);

 	dev_dbg(&dev->edev.dev, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x",
 			phy_id, loc, val);

 	asix_set_sw_mii(dev);
 	asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
 	asix_set_hw_mii(dev);

 	return 0;
 }

 static inline int asix_get_phy_addr(struct usbnet *dev)
 {
 	u8 buf[2];
 	int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);

 	dev_dbg(&dev->edev.dev, "asix_get_phy_addr()");

 	if (ret < 0) {
 		dev_err(&dev->edev.dev, "Error reading PHYID register: %02x", ret);
 		goto out;
 	}
 	dev_dbg(&dev->edev.dev, "asix_get_phy_addr() returning 0x%04x", *((__le16 *)buf));
 	ret = buf[1];

 out:
 	return ret;
 }

 static int asix_sw_reset(struct usbnet *dev, u8 flags)
 {
 	int ret;

         ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL);
 	if (ret < 0)
 		dev_err(&dev->edev.dev, "Failed to send software reset: %02x", ret);

 	return ret;
 }

 static u16 asix_read_rx_ctl(struct usbnet *dev)
 {
 	__le16 v;
 	int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);

 	if (ret < 0) {
 		dev_err(&dev->edev.dev, "Error reading RX_CTL register: %02x", ret);
 		goto out;
 	}
 	ret = le16_to_cpu(v);
 out:
 	return ret;
 }

 static int asix_write_rx_ctl(struct usbnet *dev, u16 mode)
 {
 	int ret;

 	dev_dbg(&dev->edev.dev, "asix_write_rx_ctl() - mode = 0x%04x", mode);
 	ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL);
 	if (ret < 0)
 		dev_err(&dev->edev.dev, "Failed to write RX_CTL mode to 0x%04x: %02x",
 		       mode, ret);

 	return ret;
 }

 static u16 asix_read_medium_status(struct usbnet *dev)
 {
 	__le16 v;
 	int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);

 	if (ret < 0) {
 		dev_err(&dev->edev.dev, "Error reading Medium Status register: %02x", ret);
 		goto out;
 	}
 	ret = le16_to_cpu(v);
 out:
 	return ret;
 }

 static int asix_write_medium_mode(struct usbnet *dev, u16 mode)
 {
 	int ret;

 	dev_dbg(&dev->edev.dev, "asix_write_medium_mode() - mode = 0x%04x", mode);
 	ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
 	if (ret < 0)
 		dev_err(&dev->edev.dev, "Failed to write Medium Mode mode to 0x%04x: %02x",
 			mode, ret);

 	return ret;
 }

 static int asix_write_gpio(struct usbnet *dev, u16 value, int sleep)
 {
 	int ret;

 	dev_dbg(&dev->edev.dev,"asix_write_gpio() - value = 0x%04x", value);
 	ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL);
 	if (ret < 0)
 		dev_err(&dev->edev.dev, "Failed to write GPIO value 0x%04x: %02x",
 			value, ret);

 	if (sleep)
 		mdelay(sleep);

 	return ret;
 }

 static int asix_get_ethaddr(struct eth_device *edev, unsigned char *adr)
 {
 	struct usbnet *udev = container_of(edev, struct usbnet, edev);
 	int ret;

 	/* Get the MAC address */
 	if ((ret = asix_read_cmd(udev, AX_CMD_READ_NODE_ID,
 				0, 0, 6, adr)) < 0) {
 		debug("Failed to read MAC address: %d", ret);
 		return -1;
 	}

 	return 0;
 }

 static int asix_set_ethaddr(struct eth_device *edev, unsigned char *adr)
 {
 	/* not possible? */
 	return 0;
 }

 static int ax88172_get_ethaddr(struct eth_device *edev, unsigned char *adr)
 {
 	struct usbnet *udev = container_of(edev, struct usbnet, edev);
 	int ret;

 	/* Get the MAC address */
 	if ((ret = asix_read_cmd(udev, AX88172_CMD_READ_NODE_ID,
 				0, 0, 6, adr)) < 0) {
 		debug("read AX_CMD_READ_NODE_ID failed: %d", ret);
 		return -1;
 	}

 	return 0;
 }

 static int asix_rx_fixup(struct usbnet *dev, void *buf, int len)
 {
 	unsigned int header;
 	unsigned short size;

 	memcpy(&header, (void*) buf, sizeof(header));
 	le32_to_cpus(&header);
 	buf += 4;
 	len -= 4;

 	while (len > 0) {
 		if ((short)(header & 0x0000ffff) != ~((short)((header & 0xffff0000) >> 16)))
 			dev_err(&dev->edev.dev, "asix_rx_fixup() Bad Header Length");

 		/* get the packet length */
 		size = (unsigned short) (header & 0x0000ffff);

 		if (size > 1514) {
 			dev_err(&dev->edev.dev, "asix_rx_fixup() Bad RX Length %d", size);
 			return 0;
 		}

 		net_receive(buf, size);

 		buf += ((size + 1) & 0xfffe);
 		len -= ((size + 1) & 0xfffe);

 		if (len == 0)
 			break;

 		memcpy(&header, (void*) buf, sizeof(header));
 		le32_to_cpus(&header);
 		buf += 4;
 		len -= 4;
 	}

 	if (len < 0) {
 		dev_err(&dev->edev.dev,"asix_rx_fixup() Bad SKB Length %d", len);
 		return -1;
 	}
 	return 0;
 }

 static int asix_tx_fixup(struct usbnet *dev,
                                 void *buf, int len,
                                 void *nbuf, int *nlen)
 {
 	unsigned int packet_len;

 	memmove(nbuf + 4, buf, len);

 	packet_len = ((len ^ 0x0000ffff) << 16) + len;
 	cpu_to_le32s(&packet_len);
 	memcpy(nbuf, &packet_len, 4);
 	len += 4;

 	if((len % 512) == 0) {
 		unsigned int padbytes = 0xffff0000;
 		cpu_to_le32s(&padbytes);
 		memcpy(nbuf + len, &padbytes, 4);
 		len += 4;
 	}

 	*nlen = len;

 	return 0;
 }

 static int asix_init_mii(struct usbnet *dev)
 {
 	dev->miidev.read = asix_mdio_read;
 	dev->miidev.write = asix_mdio_write;
 	dev->miidev.address = asix_get_phy_addr(dev);
 	dev->miidev.flags = 0;
 	dev->miidev.edev = &dev->edev;

 	return mii_register(&dev->miidev);
 }

 static int ax88172_link_reset(struct usbnet *dev)
 {
 	u8 mode;

 	mode = AX88172_MEDIUM_DEFAULT;

 //	if (ecmd.duplex != DUPLEX_FULL)
 //		mode |= ~AX88172_MEDIUM_FD;

 	asix_write_medium_mode(dev, mode);

 	return 0;
 }

 static int ax88172_bind(struct usbnet *dev)
 {
 	int ret = 0;
 	int i;
 	unsigned long gpio_bits = dev->driver_info->data;
 	struct asix_data *data = (struct asix_data *)&dev->data;

 	dev_dbg(&dev->edev.dev, "%s\n", __func__);

 	data->eeprom_len = AX88172_EEPROM_LEN;

 	ret = usbnet_get_endpoints(dev);
 	if (ret) {
 		dev_err(&dev->edev.dev, "can not get EPs\n");
 		return ret;
 	}

 	/* Toggle the GPIOs in a manufacturer/model specific way */
 	for (i = 2; i >= 0; i--) {
 		if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
 					(gpio_bits >> (i * 8)) & 0xff, 0, 0,
 					NULL)) < 0)
 			goto out;
 		mdelay(5);
 	}

 	if ((ret = asix_write_rx_ctl(dev, 0x80)) < 0)
 		goto out;

 	dev->edev.get_ethaddr = ax88172_get_ethaddr;
 	dev->edev.set_ethaddr = asix_set_ethaddr;
 	asix_init_mii(dev);

 	return 0;

 out:
 	return ret;
 }

 static int ax88772_bind(struct usbnet *dev)
 {
 	int ret, embd_phy;
 	u16 rx_ctl;
 	struct asix_data *data = (struct asix_data *)&dev->data;

 	debug("%s\n", __func__);

 	data->eeprom_len = AX88772_EEPROM_LEN;

 	usbnet_get_endpoints(dev);

 	if ((ret = asix_write_gpio(dev,
 			AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5)) < 0)
 		goto out;

 	/* 0x10 is the phy id of the embedded 10/100 ethernet phy */
 	embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
 	if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
 				embd_phy, 0, 0, NULL)) < 0) {
 		debug("Select PHY #1 failed: %d", ret);
 		goto out;
 	}

 	if ((ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL)) < 0)
 		goto out;

 	mdelay(150);
 	if ((ret = asix_sw_reset(dev, AX_SWRESET_CLEAR)) < 0)
 		goto out;

 	mdelay(150);
 	if (embd_phy) {
 		if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL)) < 0)
 			goto out;
 	}
 	else {
 		if ((ret = asix_sw_reset(dev, AX_SWRESET_PRTE)) < 0)
 			goto out;
 	}

 	mdelay(150);
 	rx_ctl = asix_read_rx_ctl(dev);
 	debug("RX_CTL is 0x%04x after software reset", rx_ctl);
 	if ((ret = asix_write_rx_ctl(dev, 0x0000)) < 0)
 		goto out;

 	rx_ctl = asix_read_rx_ctl(dev);
 	debug("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);

 	dev->edev.get_ethaddr = asix_get_ethaddr;
 	dev->edev.set_ethaddr = asix_set_ethaddr;
 	asix_init_mii(dev);

 	if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0)
 		goto out;

 	mdelay(150);

 	if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL)) < 0)
 		goto out;

 	mdelay(150);

 	if ((ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT)) < 0)
 		goto out;

 	if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
 				AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
 				AX88772_IPG2_DEFAULT, 0, NULL)) < 0) {
 		debug("Write IPG,IPG1,IPG2 failed: %d", ret);
 		goto out;
 	}

 	/* Set RX_CTL to default values with 2k buffer, and enable cactus */
 	if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
 		goto out;

 	rx_ctl = asix_read_rx_ctl(dev);
 	debug("RX_CTL is 0x%04x after all initializations", rx_ctl);

 	rx_ctl = asix_read_medium_status(dev);
 	debug("Medium Status is 0x%04x after all initializations", rx_ctl);

 	/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
 	if (dev->driver_info->flags & FLAG_FRAMING_AX) {
 		/* hard_mtu  is still the default - the device does not support
 		   jumbo eth frames */
 		dev->rx_urb_size = 2048;
 	}

 	return 0;

 out:
 	return ret;
 }

 static void asix_unbind(struct usbnet *dev)
 {
 	mii_unregister(&dev->miidev);
 }

 static struct driver_info ax8817x_info = {
 	.description = "ASIX AX8817x USB 2.0 Ethernet",
 	.bind = ax88172_bind,
 	.unbind = asix_unbind,
 	.link_reset = ax88172_link_reset,
 	.reset = ax88172_link_reset,
 	.flags =  FLAG_ETHER,
 	.data = 0x00130103,
 };

 static struct driver_info dlink_dub_e100_info = {
 	.description = "DLink DUB-E100 USB Ethernet",
 	.bind = ax88172_bind,
 	.unbind = asix_unbind,
 	.link_reset = ax88172_link_reset,
 	.reset = ax88172_link_reset,
 	.flags =  FLAG_ETHER,
 	.data = 0x009f9d9f,
 };

 static struct driver_info netgear_fa120_info = {
 	.description = "Netgear FA-120 USB Ethernet",
 	.bind = ax88172_bind,
 	.unbind = asix_unbind,
 	.link_reset = ax88172_link_reset,
 	.reset = ax88172_link_reset,
 	.flags =  FLAG_ETHER,
 	.data = 0x00130103,
 };

 static struct driver_info hawking_uf200_info = {
 	.description = "Hawking UF200 USB Ethernet",
 	.bind = ax88172_bind,
 	.unbind = asix_unbind,
 	.link_reset = ax88172_link_reset,
 	.reset = ax88172_link_reset,
 	.flags =  FLAG_ETHER,
 	.data = 0x001f1d1f,
 };

 static struct driver_info ax88772_info = {
 	.description = "ASIX AX88772 USB 2.0 Ethernet",
 	.bind = ax88772_bind,
 	.unbind = asix_unbind,
 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
 	.rx_fixup = asix_rx_fixup,
 	.tx_fixup = asix_tx_fixup,
 };

 static const struct usb_device_id products [] = {
 {
 	// Linksys USB200M
 	USB_DEVICE (0x077b, 0x2226),
 	.driver_info =	&ax8817x_info,
 }, {
 	// Netgear FA120
 	USB_DEVICE (0x0846, 0x1040),
 	.driver_info =  &netgear_fa120_info,
 }, {
 	// DLink DUB-E100
 	USB_DEVICE (0x2001, 0x1a00),
 	.driver_info =  &dlink_dub_e100_info,
 }, {
 	// Intellinet, ST Lab USB Ethernet
 	USB_DEVICE (0x0b95, 0x1720),
 	.driver_info =  &ax8817x_info,
 }, {
 	// Hawking UF200, TrendNet TU2-ET100
 	USB_DEVICE (0x07b8, 0x420a),
 	.driver_info =  &hawking_uf200_info,
 }, {
 	// Billionton Systems, USB2AR
 	USB_DEVICE (0x08dd, 0x90ff),
 	.driver_info =  &ax8817x_info,
 }, {
 	// ATEN UC210T
 	USB_DEVICE (0x0557, 0x2009),
 	.driver_info =  &ax8817x_info,
 }, {
 	// Buffalo LUA-U2-KTX
 	USB_DEVICE (0x0411, 0x003d),
 	.driver_info =  &ax8817x_info,
 }, {
 	// Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
 	USB_DEVICE (0x6189, 0x182d),
 	.driver_info =  &ax8817x_info,
 }, {
 	// corega FEther USB2-TX
 	USB_DEVICE (0x07aa, 0x0017),
 	.driver_info =  &ax8817x_info,
 }, {
 	// Surecom EP-1427X-2
 	USB_DEVICE (0x1189, 0x0893),
 	.driver_info = &ax8817x_info,
 }, {
 	// goodway corp usb gwusb2e
 	USB_DEVICE (0x1631, 0x6200),
 	.driver_info = &ax8817x_info,
 }, {
 	// JVC MP-PRX1 Port Replicator
 	USB_DEVICE (0x04f1, 0x3008),
 	.driver_info = &ax8817x_info,
 }, {
 	// ASIX AX88772 10/100
 	USB_DEVICE (0x0b95, 0x7720),
 	.driver_info = &ax88772_info,
 }, {
 	// Linksys USB200M Rev 2
 	USB_DEVICE (0x13b1, 0x0018),
 	.driver_info = &ax88772_info,
 }, {
 	// 0Q0 cable ethernet
 	USB_DEVICE (0x1557, 0x7720),
 	.driver_info = &ax88772_info,
 }, {
 	// DLink DUB-E100 H/W Ver B1
 	USB_DEVICE (0x07d1, 0x3c05),
 	.driver_info = &ax88772_info,
 }, {
 	// DLink DUB-E100 H/W Ver B1 Alternate
 	USB_DEVICE (0x2001, 0x3c05),
 	.driver_info = &ax88772_info,
 }, {
 	// Apple USB Ethernet Adapter
 	USB_DEVICE(0x05ac, 0x1402),
 	.driver_info = &ax88772_info,
 }, {
 	// Cables-to-Go USB Ethernet Adapter
 	USB_DEVICE(0x0b95, 0x772a),
 	.driver_info = &ax88772_info,
 },
 	{ },		// END
 };

 static struct usb_driver asix_driver = {
 	.name =		"asix",
 	.id_table =	products,
 	.probe =	usbnet_probe,
 	.disconnect =	usbnet_disconnect,
 };

 static int __init asix_init(void)
 {
  	return usb_driver_register(&asix_driver);
 }
 device_initcall(asix_init);
	#include <common.h>
	#include <init.h>
	#include <net.h>
	#include <miidev.h>
	#include <usb/usb.h>
	#include <usb/usbnet.h>
	#include <errno.h>
	#include <malloc.h>
	#include <asm/byteorder.h>

	/* ASIX AX8817X based USB 2.0 Ethernet Devices */

	#define AX_CMD_SET_SW_MII 0x06
	#define AX_CMD_READ_MII_REG 0x07
	#define AX_CMD_WRITE_MII_REG 0x08
	#define AX_CMD_SET_HW_MII 0x0a
	#define AX_CMD_READ_EEPROM 0x0b
	#define AX_CMD_WRITE_EEPROM 0x0c
	#define AX_CMD_WRITE_ENABLE 0x0d
	#define AX_CMD_WRITE_DISABLE 0x0e
	#define AX_CMD_READ_RX_CTL 0x0f
	#define AX_CMD_WRITE_RX_CTL 0x10
	#define AX_CMD_READ_IPG012 0x11
	#define AX_CMD_WRITE_IPG0 0x12
	#define AX_CMD_WRITE_IPG1 0x13
	#define AX_CMD_READ_NODE_ID 0x13
	#define AX_CMD_WRITE_IPG2 0x14
	#define AX_CMD_WRITE_MULTI_FILTER 0x16
	#define AX88172_CMD_READ_NODE_ID 0x17
	#define AX_CMD_READ_PHY_ID 0x19
	#define AX_CMD_READ_MEDIUM_STATUS 0x1a
	#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
	#define AX_CMD_READ_MONITOR_MODE 0x1c
	#define AX_CMD_WRITE_MONITOR_MODE 0x1d
	#define AX_CMD_READ_GPIOS 0x1e
	#define AX_CMD_WRITE_GPIOS 0x1f
	#define AX_CMD_SW_RESET 0x20
	#define AX_CMD_SW_PHY_STATUS 0x21
	#define AX_CMD_SW_PHY_SELECT 0x22

	#define AX_MONITOR_MODE 0x01
	#define AX_MONITOR_LINK 0x02
	#define AX_MONITOR_MAGIC 0x04
	#define AX_MONITOR_HSFS 0x10

	/* AX88172 Medium Status Register values */
	#define AX88172_MEDIUM_FD 0x02
	#define AX88172_MEDIUM_TX 0x04
	#define AX88172_MEDIUM_FC 0x10
	#define AX88172_MEDIUM_DEFAULT \
	( AX88172_MEDIUM_FD \| AX88172_MEDIUM_TX \| AX88172_MEDIUM_FC )

	#define AX_MCAST_FILTER_SIZE 8
	#define AX_MAX_MCAST 64

	#define AX_SWRESET_CLEAR 0x00
	#define AX_SWRESET_RR 0x01
	#define AX_SWRESET_RT 0x02
	#define AX_SWRESET_PRTE 0x04
	#define AX_SWRESET_PRL 0x08
	#define AX_SWRESET_BZ 0x10
	#define AX_SWRESET_IPRL 0x20
	#define AX_SWRESET_IPPD 0x40

	#define AX88772_IPG0_DEFAULT 0x15
	#define AX88772_IPG1_DEFAULT 0x0c
	#define AX88772_IPG2_DEFAULT 0x12

	/* AX88772 & AX88178 Medium Mode Register */
	#define AX_MEDIUM_PF 0x0080
	#define AX_MEDIUM_JFE 0x0040
	#define AX_MEDIUM_TFC 0x0020
	#define AX_MEDIUM_RFC 0x0010
	#define AX_MEDIUM_ENCK 0x0008
	#define AX_MEDIUM_AC 0x0004
	#define AX_MEDIUM_FD 0x0002
	#define AX_MEDIUM_GM 0x0001
	#define AX_MEDIUM_SM 0x1000
	#define AX_MEDIUM_SBP 0x0800
	#define AX_MEDIUM_PS 0x0200
	#define AX_MEDIUM_RE 0x0100

	#define AX88178_MEDIUM_DEFAULT \
	(AX_MEDIUM_PS \| AX_MEDIUM_FD \| AX_MEDIUM_AC \| \
	AX_MEDIUM_RFC \| AX_MEDIUM_TFC \| AX_MEDIUM_JFE \| \
	AX_MEDIUM_RE )

	#define AX88772_MEDIUM_DEFAULT \
	(AX_MEDIUM_FD \| AX_MEDIUM_RFC \| \
	AX_MEDIUM_TFC \| AX_MEDIUM_PS \| \
	AX_MEDIUM_AC \| AX_MEDIUM_RE )

	/* AX88772 & AX88178 RX_CTL values */
	#define AX_RX_CTL_SO 0x0080
	#define AX_RX_CTL_AP 0x0020
	#define AX_RX_CTL_AM 0x0010
	#define AX_RX_CTL_AB 0x0008
	#define AX_RX_CTL_SEP 0x0004
	#define AX_RX_CTL_AMALL 0x0002
	#define AX_RX_CTL_PRO 0x0001
	#define AX_RX_CTL_MFB_2048 0x0000
	#define AX_RX_CTL_MFB_4096 0x0100
	#define AX_RX_CTL_MFB_8192 0x0200
	#define AX_RX_CTL_MFB_16384 0x0300

	#define AX_DEFAULT_RX_CTL \
	(AX_RX_CTL_SO \| AX_RX_CTL_AB )

	/* GPIO 0 .. 2 toggles */
	#define AX_GPIO_GPO0EN 0x01 /* GPIO0 Output enable */
	#define AX_GPIO_GPO_0 0x02 /* GPIO0 Output value */
	#define AX_GPIO_GPO1EN 0x04 /* GPIO1 Output enable */
	#define AX_GPIO_GPO_1 0x08 /* GPIO1 Output value */
	#define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */
	#define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */
	#define AX_GPIO_RESERVED 0x40 /* Reserved */
	#define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */

	#define AX_EEPROM_MAGIC 0xdeadbeef
	#define AX88172_EEPROM_LEN 0x40
	#define AX88772_EEPROM_LEN 0xff

	#define PHY_MODE_MARVELL 0x0000
	#define MII_MARVELL_LED_CTRL 0x0018
	#define MII_MARVELL_STATUS 0x001b
	#define MII_MARVELL_CTRL 0x0014

	#define MARVELL_LED_MANUAL 0x0019

	#define MARVELL_STATUS_HWCFG 0x0004

	#define MARVELL_CTRL_TXDELAY 0x0002
	#define MARVELL_CTRL_RXDELAY 0x0080

	/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
	struct asix_data {
	u8 multi_filter[AX_MCAST_FILTER_SIZE];
	u8 phymode;
	u8 ledmode;
	u8 eeprom_len;
	};

	struct ax88172_int_data {
	__le16 res1;
	u8 link;
	__le16 res2;
	u8 status;
	__le16 res3;
	} __attribute__ ((packed));

	static int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
	u16 size, void *data)
	{
	void *buf;
	int err = -ENOMEM;

	dev_dbg(&dev->edev.dev, "asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d",
	cmd, value, index, size);

	buf = malloc(size);
	if (!buf)
	goto out;

	err = usb_control_msg(
	dev->udev,
	usb_rcvctrlpipe(dev->udev, 0),
	cmd,
	USB_DIR_IN \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	value,
	index,
	buf,
	size,
	USB_CTRL_GET_TIMEOUT);
	if (err == size)
	memcpy(data, buf, size);
	else if (err >= 0)
	err = -EINVAL;
	free(buf);

	out:
	return err;
	}

	static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
	u16 size, void *data)
	{
	void *buf = NULL;
	int err = -ENOMEM;

	dev_dbg(&dev->edev.dev, "asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d",
	cmd, value, index, size);

	if (data) {
	buf = malloc(size);
	if (!buf)
	goto out;
	memcpy(buf, data, size);
	}

	err = usb_control_msg(
	dev->udev,
	usb_sndctrlpipe(dev->udev, 0),
	cmd,
	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	value,
	index,
	buf,
	size,
	USB_CTRL_SET_TIMEOUT);
	free(buf);

	out:
	return err;
	}

	static inline int asix_set_sw_mii(struct usbnet *dev)
	{
	int ret;
	ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL);
	if (ret < 0)
	dev_err(&dev->edev.dev, "Failed to enable software MII access");
	return ret;
	}

	static inline int asix_set_hw_mii(struct usbnet *dev)
	{
	int ret;
	ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL);
	if (ret < 0)
	dev_err(&dev->edev.dev, "Failed to enable hardware MII access");
	return ret;
	}

	static int asix_mdio_read(struct mii_device *mdev, int phy_id, int loc)
	{
	struct eth_device *eth = mdev->edev;
	struct usbnet *dev = eth->priv;
	__le16 res;

	asix_set_sw_mii(dev);
	asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
	(__u16)loc, 2, &res);
	asix_set_hw_mii(dev);

	dev_dbg(&dev->edev.dev, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x",
	phy_id, loc, le16_to_cpu(res));

	return le16_to_cpu(res);
	}

	static int asix_mdio_write(struct mii_device *mdev, int phy_id, int loc, int val)
	{
	struct eth_device *eth = mdev->edev;
	struct usbnet *dev = eth->priv;
	__le16 res = cpu_to_le16(val);

	dev_dbg(&dev->edev.dev, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x",
	phy_id, loc, val);

	asix_set_sw_mii(dev);
	asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
	asix_set_hw_mii(dev);

	return 0;
	}

	static inline int asix_get_phy_addr(struct usbnet *dev)
	{
	u8 buf[2];
	int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);

	dev_dbg(&dev->edev.dev, "asix_get_phy_addr()");

	if (ret < 0) {
	dev_err(&dev->edev.dev, "Error reading PHYID register: %02x", ret);
	goto out;
	}
	dev_dbg(&dev->edev.dev, "asix_get_phy_addr() returning 0x%04x", ((__le16 )buf));
	ret = buf[1];

	out:
	return ret;
	}

	static int asix_sw_reset(struct usbnet *dev, u8 flags)
	{
	int ret;

	ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL);
	if (ret < 0)
	dev_err(&dev->edev.dev, "Failed to send software reset: %02x", ret);

	return ret;
	}

	static u16 asix_read_rx_ctl(struct usbnet *dev)
	{
	__le16 v;
	int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);

	if (ret < 0) {
	dev_err(&dev->edev.dev, "Error reading RX_CTL register: %02x", ret);
	goto out;
	}
	ret = le16_to_cpu(v);
	out:
	return ret;
	}

	static int asix_write_rx_ctl(struct usbnet *dev, u16 mode)
	{
	int ret;

	dev_dbg(&dev->edev.dev, "asix_write_rx_ctl() - mode = 0x%04x", mode);
	ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL);
	if (ret < 0)
	dev_err(&dev->edev.dev, "Failed to write RX_CTL mode to 0x%04x: %02x",
	mode, ret);

	return ret;
	}

	static u16 asix_read_medium_status(struct usbnet *dev)
	{
	__le16 v;
	int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);

	if (ret < 0) {
	dev_err(&dev->edev.dev, "Error reading Medium Status register: %02x", ret);
	goto out;
	}
	ret = le16_to_cpu(v);
	out:
	return ret;
	}

	static int asix_write_medium_mode(struct usbnet *dev, u16 mode)
	{
	int ret;

	dev_dbg(&dev->edev.dev, "asix_write_medium_mode() - mode = 0x%04x", mode);
	ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
	if (ret < 0)
	dev_err(&dev->edev.dev, "Failed to write Medium Mode mode to 0x%04x: %02x",
	mode, ret);

	return ret;
	}

	static int asix_write_gpio(struct usbnet *dev, u16 value, int sleep)
	{
	int ret;

	dev_dbg(&dev->edev.dev,"asix_write_gpio() - value = 0x%04x", value);
	ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL);
	if (ret < 0)
	dev_err(&dev->edev.dev, "Failed to write GPIO value 0x%04x: %02x",
	value, ret);

	if (sleep)
	mdelay(sleep);

	return ret;
	}

	static int asix_get_ethaddr(struct eth_device edev, unsigned char adr)
	{
	struct usbnet *udev = container_of(edev, struct usbnet, edev);
	int ret;

	/* Get the MAC address */
	if ((ret = asix_read_cmd(udev, AX_CMD_READ_NODE_ID,
	0, 0, 6, adr)) < 0) {
	debug("Failed to read MAC address: %d", ret);
	return -1;
	}

	return 0;
	}

	static int asix_set_ethaddr(struct eth_device edev, unsigned char adr)
	{
	/* not possible? */
	return 0;
	}

	static int ax88172_get_ethaddr(struct eth_device edev, unsigned char adr)
	{
	struct usbnet *udev = container_of(edev, struct usbnet, edev);
	int ret;

	/* Get the MAC address */
	if ((ret = asix_read_cmd(udev, AX88172_CMD_READ_NODE_ID,
	0, 0, 6, adr)) < 0) {
	debug("read AX_CMD_READ_NODE_ID failed: %d", ret);
	return -1;
	}

	return 0;
	}

	static int asix_rx_fixup(struct usbnet dev, void buf, int len)
	{
	unsigned int header;
	unsigned short size;

	memcpy(&header, (void*) buf, sizeof(header));
	le32_to_cpus(&header);
	buf += 4;
	len -= 4;

	while (len > 0) {
	if ((short)(header & 0x0000ffff) != ~((short)((header & 0xffff0000) >> 16)))
	dev_err(&dev->edev.dev, "asix_rx_fixup() Bad Header Length");

	/* get the packet length */
	size = (unsigned short) (header & 0x0000ffff);

	if (size > 1514) {
	dev_err(&dev->edev.dev, "asix_rx_fixup() Bad RX Length %d", size);
	return 0;
	}

	net_receive(buf, size);

	buf += ((size + 1) & 0xfffe);
	len -= ((size + 1) & 0xfffe);

	if (len == 0)
	break;

	memcpy(&header, (void*) buf, sizeof(header));
	le32_to_cpus(&header);
	buf += 4;
	len -= 4;
	}

	if (len < 0) {
	dev_err(&dev->edev.dev,"asix_rx_fixup() Bad SKB Length %d", len);
	return -1;
	}
	return 0;
	}

	static int asix_tx_fixup(struct usbnet *dev,
	void *buf, int len,
	void nbuf, int nlen)
	{
	unsigned int packet_len;

	memmove(nbuf + 4, buf, len);

	packet_len = ((len ^ 0x0000ffff) << 16) + len;
	cpu_to_le32s(&packet_len);
	memcpy(nbuf, &packet_len, 4);
	len += 4;

	if((len % 512) == 0) {
	unsigned int padbytes = 0xffff0000;
	cpu_to_le32s(&padbytes);
	memcpy(nbuf + len, &padbytes, 4);
	len += 4;
	}

	*nlen = len;

	return 0;
	}

	static int asix_init_mii(struct usbnet *dev)
	{
	dev->miidev.read = asix_mdio_read;
	dev->miidev.write = asix_mdio_write;
	dev->miidev.address = asix_get_phy_addr(dev);
	dev->miidev.flags = 0;
	dev->miidev.edev = &dev->edev;

	return mii_register(&dev->miidev);
	}

	static int ax88172_link_reset(struct usbnet *dev)
	{
	u8 mode;

	mode = AX88172_MEDIUM_DEFAULT;

	// if (ecmd.duplex != DUPLEX_FULL)
	// mode \|= ~AX88172_MEDIUM_FD;

	asix_write_medium_mode(dev, mode);

	return 0;
	}

	static int ax88172_bind(struct usbnet *dev)
	{
	int ret = 0;
	int i;
	unsigned long gpio_bits = dev->driver_info->data;
	struct asix_data data = (struct asix_data )&dev->data;

	dev_dbg(&dev->edev.dev, "%s\n", __func__);

	data->eeprom_len = AX88172_EEPROM_LEN;

	ret = usbnet_get_endpoints(dev);
	if (ret) {
	dev_err(&dev->edev.dev, "can not get EPs\n");
	return ret;
	}

	/* Toggle the GPIOs in a manufacturer/model specific way */
	for (i = 2; i >= 0; i--) {
	if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
	(gpio_bits >> (i * 8)) & 0xff, 0, 0,
	NULL)) < 0)
	goto out;
	mdelay(5);
	}

	if ((ret = asix_write_rx_ctl(dev, 0x80)) < 0)
	goto out;

	dev->edev.get_ethaddr = ax88172_get_ethaddr;
	dev->edev.set_ethaddr = asix_set_ethaddr;
	asix_init_mii(dev);

	return 0;

	out:
	return ret;
	}

	static int ax88772_bind(struct usbnet *dev)
	{
	int ret, embd_phy;
	u16 rx_ctl;
	struct asix_data data = (struct asix_data )&dev->data;

	debug("%s\n", __func__);

	data->eeprom_len = AX88772_EEPROM_LEN;

	usbnet_get_endpoints(dev);

	if ((ret = asix_write_gpio(dev,
	AX_GPIO_RSE \| AX_GPIO_GPO_2 \| AX_GPIO_GPO2EN, 5)) < 0)
	goto out;

	/* 0x10 is the phy id of the embedded 10/100 ethernet phy */
	embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
	if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
	embd_phy, 0, 0, NULL)) < 0) {
	debug("Select PHY #1 failed: %d", ret);
	goto out;
	}

	if ((ret = asix_sw_reset(dev, AX_SWRESET_IPPD \| AX_SWRESET_PRL)) < 0)
	goto out;

	mdelay(150);
	if ((ret = asix_sw_reset(dev, AX_SWRESET_CLEAR)) < 0)
	goto out;

	mdelay(150);
	if (embd_phy) {
	if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL)) < 0)
	goto out;
	}
	else {
	if ((ret = asix_sw_reset(dev, AX_SWRESET_PRTE)) < 0)
	goto out;
	}

	mdelay(150);
	rx_ctl = asix_read_rx_ctl(dev);
	debug("RX_CTL is 0x%04x after software reset", rx_ctl);
	if ((ret = asix_write_rx_ctl(dev, 0x0000)) < 0)
	goto out;

	rx_ctl = asix_read_rx_ctl(dev);
	debug("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);

	dev->edev.get_ethaddr = asix_get_ethaddr;
	dev->edev.set_ethaddr = asix_set_ethaddr;
	asix_init_mii(dev);

	if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0)
	goto out;

	mdelay(150);

	if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL \| AX_SWRESET_PRL)) < 0)
	goto out;

	mdelay(150);

	if ((ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT)) < 0)
	goto out;

	if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
	AX88772_IPG0_DEFAULT \| AX88772_IPG1_DEFAULT,
	AX88772_IPG2_DEFAULT, 0, NULL)) < 0) {
	debug("Write IPG,IPG1,IPG2 failed: %d", ret);
	goto out;
	}

	/* Set RX_CTL to default values with 2k buffer, and enable cactus */
	if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
	goto out;

	rx_ctl = asix_read_rx_ctl(dev);
	debug("RX_CTL is 0x%04x after all initializations", rx_ctl);

	rx_ctl = asix_read_medium_status(dev);
	debug("Medium Status is 0x%04x after all initializations", rx_ctl);

	/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
	if (dev->driver_info->flags & FLAG_FRAMING_AX) {
	/* hard_mtu is still the default - the device does not support
	jumbo eth frames */
	dev->rx_urb_size = 2048;
	}

	return 0;

	out:
	return ret;
	}

	static void asix_unbind(struct usbnet *dev)
	{
	mii_unregister(&dev->miidev);
	}

	static struct driver_info ax8817x_info = {
	.description = "ASIX AX8817x USB 2.0 Ethernet",
	.bind = ax88172_bind,
	.unbind = asix_unbind,
	.link_reset = ax88172_link_reset,
	.reset = ax88172_link_reset,
	.flags = FLAG_ETHER,
	.data = 0x00130103,
	};

	static struct driver_info dlink_dub_e100_info = {
	.description = "DLink DUB-E100 USB Ethernet",
	.bind = ax88172_bind,
	.unbind = asix_unbind,
	.link_reset = ax88172_link_reset,
	.reset = ax88172_link_reset,
	.flags = FLAG_ETHER,
	.data = 0x009f9d9f,
	};

	static struct driver_info netgear_fa120_info = {
	.description = "Netgear FA-120 USB Ethernet",
	.bind = ax88172_bind,
	.unbind = asix_unbind,
	.link_reset = ax88172_link_reset,
	.reset = ax88172_link_reset,
	.flags = FLAG_ETHER,
	.data = 0x00130103,
	};

	static struct driver_info hawking_uf200_info = {
	.description = "Hawking UF200 USB Ethernet",
	.bind = ax88172_bind,
	.unbind = asix_unbind,
	.link_reset = ax88172_link_reset,
	.reset = ax88172_link_reset,
	.flags = FLAG_ETHER,
	.data = 0x001f1d1f,
	};

	static struct driver_info ax88772_info = {
	.description = "ASIX AX88772 USB 2.0 Ethernet",
	.bind = ax88772_bind,
	.unbind = asix_unbind,
	.flags = FLAG_ETHER \| FLAG_FRAMING_AX,
	.rx_fixup = asix_rx_fixup,
	.tx_fixup = asix_tx_fixup,
	};

	static const struct usb_device_id products [] = {
	{
	// Linksys USB200M
	USB_DEVICE (0x077b, 0x2226),
	.driver_info = &ax8817x_info,
	}, {
	// Netgear FA120
	USB_DEVICE (0x0846, 0x1040),
	.driver_info = &netgear_fa120_info,
	}, {
	// DLink DUB-E100
	USB_DEVICE (0x2001, 0x1a00),
	.driver_info = &dlink_dub_e100_info,
	}, {
	// Intellinet, ST Lab USB Ethernet
	USB_DEVICE (0x0b95, 0x1720),
	.driver_info = &ax8817x_info,
	}, {
	// Hawking UF200, TrendNet TU2-ET100
	USB_DEVICE (0x07b8, 0x420a),
	.driver_info = &hawking_uf200_info,
	}, {
	// Billionton Systems, USB2AR
	USB_DEVICE (0x08dd, 0x90ff),
	.driver_info = &ax8817x_info,
	}, {
	// ATEN UC210T
	USB_DEVICE (0x0557, 0x2009),
	.driver_info = &ax8817x_info,
	}, {
	// Buffalo LUA-U2-KTX
	USB_DEVICE (0x0411, 0x003d),
	.driver_info = &ax8817x_info,
	}, {
	// Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
	USB_DEVICE (0x6189, 0x182d),
	.driver_info = &ax8817x_info,
	}, {
	// corega FEther USB2-TX
	USB_DEVICE (0x07aa, 0x0017),
	.driver_info = &ax8817x_info,
	}, {
	// Surecom EP-1427X-2
	USB_DEVICE (0x1189, 0x0893),
	.driver_info = &ax8817x_info,
	}, {
	// goodway corp usb gwusb2e
	USB_DEVICE (0x1631, 0x6200),
	.driver_info = &ax8817x_info,
	}, {
	// JVC MP-PRX1 Port Replicator
	USB_DEVICE (0x04f1, 0x3008),
	.driver_info = &ax8817x_info,
	}, {
	// ASIX AX88772 10/100
	USB_DEVICE (0x0b95, 0x7720),
	.driver_info = &ax88772_info,
	}, {
	// Linksys USB200M Rev 2
	USB_DEVICE (0x13b1, 0x0018),
	.driver_info = &ax88772_info,
	}, {
	// 0Q0 cable ethernet
	USB_DEVICE (0x1557, 0x7720),
	.driver_info = &ax88772_info,
	}, {
	// DLink DUB-E100 H/W Ver B1
	USB_DEVICE (0x07d1, 0x3c05),
	.driver_info = &ax88772_info,
	}, {
	// DLink DUB-E100 H/W Ver B1 Alternate
	USB_DEVICE (0x2001, 0x3c05),
	.driver_info = &ax88772_info,
	}, {
	// Apple USB Ethernet Adapter
	USB_DEVICE(0x05ac, 0x1402),
	.driver_info = &ax88772_info,
	}, {
	// Cables-to-Go USB Ethernet Adapter
	USB_DEVICE(0x0b95, 0x772a),
	.driver_info = &ax88772_info,
	},
	{ }, // END
	};

	static struct usb_driver asix_driver = {
	.name = "asix",
	.id_table = products,
	.probe = usbnet_probe,
	.disconnect = usbnet_disconnect,
	};

	static int __init asix_init(void)
	{
	return usb_driver_register(&asix_driver);
	}
	device_initcall(asix_init);